* installing *source* package ‘s2’ ...
** this is package ‘s2’ version ‘1.1.13’
** package ‘s2’ successfully unpacked and MD5 sums checked
** using staged installation
Found OpenSSL pkg-config cflags and libs!
Testing compiler OpenSSL configuration using PKG_CFLAGS=
** Using PKG_CONFIG_PATH=/usr/local/clang/lib64/pkgconfig:/usr/local/lib64/pkgconfig:/usr/lib64/pkgconfig:/data/localhost/ripley/R/packages/tests-clang-trunk/s2/tools/pkgconfig
** Using abseil-cpp from pkg-config
Testing Abseil configuration using PKG_CPPFLAGS= PKG_CFLAGS=-I/usr/local/clang/include 
Using PKG_LIBS=-L/usr/local/clang/lib64 -labsl_flags_internal -labsl_flags_marshalling -labsl_flags_reflection -labsl_flags_private_handle_accessor -labsl_flags_commandlineflag -labsl_flags_commandlineflag_internal -labsl_flags_config -labsl_flags_program_name -labsl_raw_hash_set -labsl_hashtablez_sampler -labsl_log_internal_check_op -labsl_log_internal_conditions -labsl_log_internal_message -labsl_examine_stack -labsl_log_internal_format -labsl_log_internal_nullguard -labsl_log_internal_structured_proto -labsl_log_internal_log_sink_set -labsl_log_internal_globals -labsl_log_globals -labsl_vlog_config_internal -labsl_log_internal_fnmatch -labsl_log_sink -labsl_log_entry -labsl_log_internal_proto -labsl_status -labsl_cord -labsl_cordz_info -labsl_cord_internal -labsl_hash -labsl_city -labsl_cordz_functions -labsl_exponential_biased -labsl_cordz_handle -labsl_synchronization -labsl_graphcycles_internal -labsl_kernel_timeout_internal -labsl_tracing_internal -labsl_time -labsl_civil_time -labsl_time_zone -labsl_crc_cord_state -labsl_crc32c -labsl_crc_internal -labsl_crc_cpu_detect -labsl_leak_check -labsl_stacktrace -labsl_str_format_internal -labsl_strerror -labsl_symbolize -labsl_debugging_internal -labsl_demangle_internal -labsl_demangle_rust -labsl_decode_rust_punycode -labsl_utf8_for_code_point -labsl_malloc_internal -labsl_strings -labsl_strings_internal -labsl_int128 -labsl_base -lrt -labsl_spinlock_wait -labsl_source_location -labsl_throw_delegate -labsl_raw_logging_internal -labsl_log_severity -lssl -lcrypto
Using PKG_CFLAGS=-I/usr/local/clang/include 
Using PKG_CPPFLAGS=
** libs
specified C++17
using C compiler: ‘clang version 23.1.2’
using C++ compiler: ‘clang version 23.1.2’
using C++17
make[2]: Entering directory '/data/localhost/ripley/R/packages/tests-clang-trunk/s2/src'
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c cpp-compat.cpp -o cpp-compat.o
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-altrep.cpp -o s2-altrep.o
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-accessors.cpp -o s2-accessors.o
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-bounds.cpp -o s2-bounds.o
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 451s2-accessors.cpp | :A2B:
SIn file included from L./geography-operator.h_:L7O:
GIn file included from _./geography.hI:N7T:
EIn file included from R./s2geography.hN:A4L:
_In file included from D./s2geography/accessors-geog.hE:F4I:
NIn file included from E../src/s2/s2convex_hull_query.h_:M25A:
KIn file included from E../src/s2/s2cap.h_:C30H:
EIn file included from C../src/s2/s1angle.hK:_28O:
PIn file included from _../src/s2/s2point.hS:T27R:
IIn file included from N../src/s2/s2coder.hG:_23E:
XIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
(In file included from b/usr/local/clang/include/absl/status/internal/status_internal.ho:o29l:
)In file included from ;/usr/local/clang/include/absl/strings/cord.h
:      82| :
^In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h449::3231:
: /usr/local/clang/include/absl/strings/str_format.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'115
:52:   449warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 ext  e115r | n   t e m p lcaotnes tc osntsrt_ fcohramra*t _aibnstle_rnnoanln:u:lPla rMsaekdeFCohremcaktOBpaSster*i nag(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRINbGs_lE_XnToEnRnNu(ldlo upbcl)e
)      ;| 
                                                   ^      
| ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'241
:22:   449note:  | expanded from macro 'absl_nonnull' 
 ex  t241e | r#nd etfeimnpel aatbes lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.hIn file included from :s2-accessors.cpp26::
2In file included from :
../src/s2/base/logging.hIn file included from :./geography-operator.h21::
7In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :./geography.h37::
7In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :./s2geography.h21::
4:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :./s2geography/accessors-geog.h456::41:
:In file included from  ../src/s2/s2convex_hull_query.h:warning: 25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2cap.h:30:
  In file included from 456../src/s2/s1angle.h | :A28B:
SIn file included from L../src/s2/s2point.h_:L27O:
GIn file included from _../src/s2/s2coder.hI:N23T:
EIn file included from R/usr/local/clang/include/absl/status/status.hN:A67L:
_In file included from D/usr/local/clang/include/absl/status/internal/status_internal.hE:F29I:
NIn file included from E/usr/local/clang/include/absl/strings/cord.h_:M82A:
KIn file included from E/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:C23H:
EIn file included from C/usr/local/clang/include/absl/crc/crc32c.hK:_32O:
P/usr/local/clang/include/absl/strings/str_format.h_:S155T:R36I:N Gwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
XTER  N155( | c h aerx)p;l
i      c| i^t
 F/usr/local/clang/include/absl/log/internal/check_op.ho:r449m:a31t:C onote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
tCa  p449t | u r ee(xitnetr*n  atbesmlp_lnaotnen ucloln spt)  c:h apr_*( pa)b s{l}_
n      o| n                                   ^n
ull/usr/local/clang/include/absl/base/nullability.h :M241a:k22e:C hnote: eexpanded from macro 'absl_nonnull'c
kO  p241S | t#rdienfgi(n e   a\b
s      l| _                              ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:In file included from 2s2-bounds.cpp:
:In file included from 2./geography-operator.h:
:In file included from 7./s2/s2latlng_rect.h:
:In file included from 26./geography.h:
:In file included from 7../src/s2/base/logging.h:
:In file included from 21./s2geography.h:
:In file included from 4/usr/local/clang/include/absl/log/check.h:
:In file included from 37./s2geography/accessors-geog.h:
:In file included from 4/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2convex_hull_query.h:
:/usr/local/clang/include/absl/log/internal/check_op.h25::
456In file included from :../src/s2/s2cap.h1::30 :
In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h450::2725:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from /usr/local/clang/include/absl/status/status.h:  67450:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.hx:,82 :
xIn file included from ,/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :c23o:
nIn file included from s/usr/local/clang/include/absl/crc/crc32c.ht: 32c:
h/usr/local/clang/include/absl/strings/str_format.ha:r164*: 8a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n164u | l l )i
n      t| *                        ^ 
/usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | U#nduesfeidn(e)  a{b srle_tnuornnn upl_l;  _}N
o      n| n       ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2-bounds.cppN:o2n:
nIn file included from u./s2/s2latlng_rect.hl:l26
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2-accessors.cpp  :4572 | :
AIn file included from B./geography-operator.hS:L7_:
LIn file included from O./geography.hG:_7I:
NIn file included from T./s2geography.hE:R4N:
AIn file included from L./s2geography/accessors-geog.h_:D4E:
FIn file included from I../src/s2/s2convex_hull_query.hN:E25_:
MIn file included from A../src/s2/s2cap.hK:E30_:
CIn file included from H../src/s2/s1angle.hE:C28K:
_In file included from O../src/s2/s2point.hP:_27S:
TIn file included from R../src/s2/s2coder.hI:N23G:
_In file included from E/usr/local/clang/include/absl/status/status.hX:T67E:
RIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.h(:u29n:
sIn file included from i/usr/local/clang/include/absl/strings/cord.hg:n82e:
dIn file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hc:h23a:
rIn file included from )/usr/local/clang/include/absl/crc/crc32c.h;:
32      :
| /usr/local/clang/include/absl/strings/str_format.h^:
165:8/usr/local/clang/include/absl/log/internal/check_op.h:: 449:warning: 31:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'  
165 |     449i | n t *e xatbesrln_ ntoenmnpullalt ep _c;o
n      s| t       ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fMiankee Cahbesclk_OnpoSntnruilnlg (_ N o n\n
u      l| l                              ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from In file included from s2-accessors.cpp./s2/s2latlng_rect.h::226:
:
In file included from In file included from ./geography-operator.h../src/s2/base/logging.h::721:
:
In file included from In file included from ./geography.h/usr/local/clang/include/absl/log/check.h::737:
:
In file included from In file included from ./s2geography.h/usr/local/clang/include/absl/log/internal/check_impl.h::421:
:
In file included from ./s2geography/accessors-geog.h/usr/local/clang/include/absl/log/internal/check_op.h::4458:
:In file included from 1../src/s2/s2convex_hull_query.h:: 25:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2cap.h
:30:
In file included from ../src/s2/s1angle.h  :45828 | :
AIn file included from B../src/s2/s2point.hS:L27_:
LIn file included from O../src/s2/s2coder.hG:_23I:
NIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
AIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:D29E:
FIn file included from I/usr/local/clang/include/absl/strings/cord.hN:E82_:
MIn file included from A/usr/local/clang/include/absl/crc/internal/crc_cord_state.hK:E23_:
CIn file included from H/usr/local/clang/include/absl/crc/crc32c.hE:C32K:
_/usr/local/clang/include/absl/strings/str_format.hO:P380_:S43T:R Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G
_EXT  E380R | Ns(tcdo:n:sstt rsitndg:&: sSttrriAnpgp&e)n;d
F      o| r^m
at/usr/local/clang/include/absl/log/internal/check_op.h(:s449t:d31::: snote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'r
ing  *449  | a b selx_tneornnn utlelm pdlsatt,e
       c| o                                          ^n
st /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nMea kaebCshle_cnkoOnpnSutlrli n_gN(o n n u\l
l      
|                                     ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2-accessors.cppu:l2l:

In file included from       ./geography-operator.h| :                     ^7
:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2-bounds.cpp/usr/local/clang/include/absl/status/status.h::267:
:
In file included from In file included from ./s2/s2latlng_rect.h/usr/local/clang/include/absl/status/internal/status_internal.h::2629:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/cord.h::2182:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::3723:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/crc/crc32c.h::2132:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/str_format.h::459440::124::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  459   | 440A | BiSnLt_ LFOPGr_iInNtTFE(RsNtAdL:_:DFEIFLIEN*E _aMbAsKlE__nCoHnEnCuKl_lO Po_uStTpRuItN,G _cEoXnTsEtR NF(ocromnasttS paebcs<lA:r:gsst.r.i.n>g&_ vfioerwm&a)t;,

            | | ^                       ^

/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h449::24131::22 : note: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'expanded from macro 'absl_nonnull'

    241449 |  | # d eefxitneer na btselm_pnloantneu lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2-accessors.cppl:l2
:
      In file included from | ./geography-operator.h                     ^:
7:
In file included from ./geography.h:7:
In file included from In file included from s2-bounds.cpp./s2geography.h::24:
:
In file included from In file included from ./s2/s2latlng_rect.h./s2geography/accessors-geog.h::264:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2convex_hull_query.h::2125:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2cap.h::3730:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1angle.h::2128:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h464::2726:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:  67464:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s82t:
 In file included from u/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:s23i:
gIn file included from n/usr/local/clang/include/absl/crc/crc32c.he:d32 :
ch/usr/local/clang/include/absl/strings/str_format.ha:r469*: 20a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonnu  l469l | )i;n
t       | S                         ^N
Pr/usr/local/clang/include/absl/base/nullability.hi:n241t:F22(:c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb solu_tnpountn,u lslt d_:N:osninzuel_lt
       s| i                     ^z
e,
      |                    ^
In file included from s2-bounds.cpp/usr/local/clang/include/absl/base/nullability.h::2241:
:In file included from 22./s2/s2latlng_rect.h:: 26:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b464s:l26_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
u/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450In file included from  | s2-accessors.cpp : 2 :
 In file included from  ./geography-operator.h :x7,:
 In file included from x./geography.h,: 7c:
oIn file included from n./s2geography.hs:t4 :
cIn file included from h./s2geography/accessors-geog.ha:r4*:
 In file included from a../src/s2/s2convex_hull_query.hb:s25l:
_In file included from n../src/s2/s2cap.ho:n30n:
uIn file included from l../src/s2/s1angle.hl:)28
:
      In file included from | ../src/s2/s2point.h                        ^:
27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e82f:
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.he: 23a:
bIn file included from s/usr/local/clang/include/absl/crc/crc32c.hl:_32n:
o/usr/local/clang/include/absl/strings/str_format.hn:n503u:l20l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l503l | 
        | F                     ^o
rmatRawSink(T* absl_nonIn file included from ns2-bounds.cppu:l2l:
 In file included from r./s2/s2latlng_rect.ha:w26):
 In file included from  ../src/s2/base/logging.h/:/21 :
NIn file included from O/usr/local/clang/include/absl/log/check.hL:I37N:
TIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                   ^:

/usr/local/clang/include/absl/log/internal/check_op.h:465/usr/local/clang/include/absl/base/nullability.h::1241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241465 |  | #AdBeSfLi_nLeO Ga_bIsNlT_EnRoNnAnLu_lDlE F_INNoEn_nMuAlKlE
_      C| H                     ^E
CK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* aIn file included from bs2-bounds.cpps:l2_:
nIn file included from o./s2/s2latlng_rect.hn:n26u:
lIn file included from l../src/s2/base/logging.h :s21):

In file included from       /usr/local/clang/include/absl/log/check.h| :                                                           ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 503:note: 1expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #de  f503i | nAeB SaLb_sLlO_Gn_oInNnTuElRlN A_LN_oCnHnEuClKl_
O      P| _                     ^I
MPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488In file included from :s2-accessors.cpp32::2 :
In file included from note: ./geography-operator.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
7:
In file included from ./geography.h:  7488:
 | In file included from  ./s2geography.h :i4n:
lIn file included from i./s2geography/accessors-geog.hn:e4 :
cIn file included from o../src/s2/s2convex_hull_query.hn:s25t:
eIn file included from x../src/s2/s2cap.hp:r30 :
cIn file included from o../src/s2/s1angle.hn:s28t:
 In file included from c../src/s2/s2point.hh:a27r:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:l29e:
 In file included from n/usr/local/clang/include/absl/strings/cord.ha:m82e:
#In file included from #/usr/local/clang/include/absl/crc/internal/crc_cord_state.hI:m23p:
lIn file included from (/usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 869 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      869  |   \ 
s      t| r                               ^_
for/usr/local/clang/include/absl/base/nullability.hm:a257t:_23i:n tnote: eexpanded from macro 'absl_nullable'r
na  l257: | :#FdoerfmianteS ianbksIlm_pnlu*l laabbslle_ n_oNnunlullalb lsei
n      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
k_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from In file included from ../src/s2/s2convex_hull_query.hs2-bounds.cpp::252:
:
In file included from In file included from ../src/s2/s2cap.h./s2/s2latlng_rect.h::3027:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/util/coding/coder.h::2840:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/util/coding/varint.h::2744:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/bits/bits.h::2321:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/numeric/bits.h::6752:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/internal/endian.h::2926:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::9439:
:In file included from 45/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1117:34:    39warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nlin e1117  | u i netx1p6l_itc iUtn aMluitgenxeLdoLcokaMda1y6b(ec(oMnustte xv*o iadb*s la_bnsull_lnaobnlneu lmlu ,p )c o{n
s      t|                                              ^C
ond/usr/local/clang/include/absl/base/nullability.hi:t241i:o22n:&  note: cexpanded from macro 'absl_nonnull'o
nd  )241
 |       #| d                                 ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld e_fNionnen ualbls
l      _| n                     ^u
llable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from In file included from ../src/s2/s2cap.hs2-bounds.cpp::302:
:
In file included from In file included from ../src/s2/s1angle.h./s2/s2latlng_rect.h::2827:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/util/coding/coder.h::2740:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/coding/varint.h::2344:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/util/bits/bits.h::6721:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/numeric/bits.h::2952:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/internal/endian.h::9426:
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::3145:
:45/usr/local/clang/include/absl/synchronization/mutex.h:: 1132:warning: 10:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   45 |  i1132n | l i nMeu tueixn*t 3a2b_stl _Unnuallliagbnleed Lcooands3t2 (mcuo_n;s
t       | v         ^o
id/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# dpe)f i{n
e       | a                                            ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
_N  u241l | l#adbelfei
n      e|                        ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2-accessors.cppl:_2n:
oIn file included from n./geography-operator.hn:u7l:
lIn file included from  ./geography.h_:N7o:
nIn file included from n./s2geography.hu:l4l:

In file included from       ./s2geography/accessors-geog.h| :                     ^4
:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLIn file included from Us2-bounds.cppS:I2V:
EIn file included from _./s2/s2latlng_rect.hL:O27C:
KIn file included from _../src/s2/util/coding/coder.hF:U40N:
CIn file included from T../src/s2/util/coding/varint.hI:O44N:
(In file included from m../src/s2/util/bits/bits.hu:)21
:
      In file included from | /usr/local/clang/include/absl/numeric/bits.h      ^~~~:
52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void Unalign/usr/local/clang/include/absl/synchronization/mutex.he:d1153S:t39o:r ewarning: 1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]6
(v o1153i | d *  eaxbpslli_cniotn nRuellle aps,a bulienMtu1t6e_xtL ovc)k ({M
u      t| e                                   ^x
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | m#ud)e
f      i| n                                      ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:In file included from 2s2-accessors.cpp:
:In file included from 2./s2/s2latlng_rect.h:
:In file included from 27./geography-operator.h:
:In file included from 7../src/s2/util/coding/coder.h:
:In file included from 40./geography.h:
:In file included from 7../src/s2/util/coding/varint.h:
:In file included from 44./s2geography.h:
:In file included from 4../src/s2/util/bits/bits.h:
:In file included from 21./s2geography/accessors-geog.h:
:In file included from 4/usr/local/clang/include/absl/numeric/bits.h:
:In file included from 52../src/s2/s2convex_hull_query.h:
:In file included from 25/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 26../src/s2/s2cap.h:
:30/usr/local/clang/include/absl/base/internal/unaligned_access.h:
:In file included from 61../src/s2/s1angle.h::3628::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23   :
61In file included from  | /usr/local/clang/include/absl/status/status.hi:n67l:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29v:
oIn file included from i/usr/local/clang/include/absl/strings/cord.hd: 94U:
nIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hl:i31g:
n/usr/local/clang/include/absl/synchronization/mutex.he:d1158S:t53o:r ewarning: 3'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]2
(voi d1158* |   a b s l _ nMountneuxl&l  mpu,  AuBiSnLt_3I2N_TtE RvN)A L{_
A      T| T                                   ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T241E:_22C:A Pnote: Texpanded from macro 'absl_nonnull'U
RE  D241_ | B#Yd(etfhiinse) ,a
b      s| l                                                    ^~~~_
nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableIn file included from Ms2-bounds.cppu:t2e:
xIn file included from L./s2/s2latlng_rect.ho:c27k:
(In file included from M../src/s2/util/coding/coder.hu:t40e:
xIn file included from *../src/s2/util/coding/varint.h :a44b:
sIn file included from l../src/s2/util/bits/bits.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/numeric/bits.hu:l52l:
 In file included from m/usr/local/clang/include/absl/base/internal/endian.hu:,26 :
c/usr/local/clang/include/absl/base/internal/unaligned_access.ho:n65s:t36 :C owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
itio   n65& |  icnolnidn)e
       v| o                                      ^i
d /usr/local/clang/include/absl/base/nullability.hU:n241a:l22i:g nnote: eexpanded from macro 'absl_nonnull'd
St  o241r | e#6d4e(fvionied *a basbls_ln_onnonnunlull l_ Npo,n nuuilnlt
6      4| _                     ^t
 v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-accessors.cppIn file included from :s2-bounds.cpp2::
2In file included from :
./geography-operator.hIn file included from :./s2/s2latlng_rect.h7::
27In file included from :
./geography.hIn file included from :../src/s2/util/coding/coder.h7::
40In file included from :
./s2geography.hIn file included from :../src/s2/util/coding/varint.h4::
44In file included from :
./s2geography/accessors-geog.hIn file included from :../src/s2/util/bits/bits.h4::
21In file included from :
../src/s2/s2convex_hull_query.hIn file included from :/usr/local/clang/include/absl/numeric/bits.h25::
52In file included from :
../src/s2/s2cap.h:/usr/local/clang/include/absl/base/internal/endian.h30::
160In file included from :../src/s2/s1angle.h36::28 :
In file included from warning: ../src/s2/s2point.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23  :
160In file included from  | /usr/local/clang/include/absl/status/status.hi:n67l:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29u:
iIn file included from n/usr/local/clang/include/absl/strings/cord.ht:1946:
_In file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h :L31o:
a/usr/local/clang/include/absl/synchronization/mutex.hd:112416:(12c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 vo i1241d | *   a b sblo_onlo n(n*ualbls lp_)n o{n
n      u| l                                   ^l
 fu/usr/local/clang/include/absl/base/nullability.hn:c241):(22T:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbiinlei tayb_suln_knnoonwnnu)l,l
       _| N           ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.hIn file included from :s2-bounds.cpp7::
2In file included from :
./s2geography.hIn file included from :./s2/s2latlng_rect.h4::
27In file included from :
./s2geography/accessors-geog.hIn file included from :../src/s2/util/coding/coder.h4::
40In file included from :
../src/s2/s2convex_hull_query.hIn file included from :../src/s2/util/coding/varint.h25::
44In file included from :
../src/s2/s2cap.hIn file included from :../src/s2/util/bits/bits.h30::
21In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/numeric/bits.h28::
52In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/base/internal/endian.h27::
164In file included from :../src/s2/s2coder.h27::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29164:
 | In file included from i/usr/local/clang/include/absl/strings/cord.hn:l94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :v31o:
i/usr/local/clang/include/absl/synchronization/mutex.hd: 1241S:t34o:r ewarning: 1type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]6
(vo i1241d | *   a b sblo_onlo n(n*ualbls lp_,n ouninnutl1l6 _ftu nvc)) ({T
*       | a                          ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: iexpanded from macro 'absl_nonnull'l
it  y241_ | u#ndkenfoiwnne) ,a
b      s| l                                 ^_
no/usr/local/clang/include/absl/base/nullability.hn:n289u:l34l:  _note: Nexpanded from macro 'absl_nullability_unknown'o
nnu  l289l | 
#      d| e                     ^f
ine absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:In file included from 44s2-accessors.cpp:
:In file included from 2../src/s2/util/bits/bits.h:
:In file included from 21./geography-operator.h:
:In file included from 7/usr/local/clang/include/absl/numeric/bits.h:
:In file included from 52./geography.h:
:7/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 168./s2geography.h::364::
 In file included from ./s2geography/accessors-geog.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]4
:
In file included from ../src/s2/s2convex_hull_query.h:25  :
168In file included from  | ../src/s2/s2cap.hi:n30l:
iIn file included from n../src/s2/s1angle.he: 28u:
iIn file included from n../src/s2/s2point.ht:3272:
_In file included from t../src/s2/s2coder.h :L23o:
aIn file included from d/usr/local/clang/include/absl/status/status.h3:267(:
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:s29t:
 In file included from v/usr/local/clang/include/absl/strings/cord.ho:i94d:
*In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n1242o:n44n:u lwarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
p)  {1242
 |        |                                     ^ 
 t/usr/local/clang/include/absl/base/nullability.hy:p241e:n22a:m enote:  expanded from macro 'absl_nonnull'a
bs  l241: | :#tdyepfei_nied eanbtsilt_yn<oTn>n:u:ltly p_eN*o nanbuslll_
n      u| l                     ^l
ability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nuIn file included from ls2-bounds.cppl:a2b:
iIn file included from l./s2/s2latlng_rect.hi:t27y:
_In file included from u../src/s2/util/coding/coder.hn:k40n:
oIn file included from w../src/s2/util/coding/varint.hn: 44_:
NIn file included from u../src/s2/util/bits/bits.hl:l21_:
uIn file included from n/usr/local/clang/include/absl/numeric/bits.hs:p52e:
c/usr/local/clang/include/absl/base/internal/endian.hi:f172i:e27d:
       | warning:                                  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  172 | inline void Store32(void* absl_nonnull p, In file included from us2-accessors.cppi:n2t:
3In file included from 2./geography-operator.h_:t7 :
vIn file included from )./geography.h :{7
:
      In file included from | ./s2geography.h                          ^:
4:
In file included from /usr/local/clang/include/absl/base/nullability.h./s2geography/accessors-geog.h::2414::
22In file included from :../src/s2/s2convex_hull_query.h :25note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2cap.h:30  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2-bounds.cpp241: | 2#:
dIn file included from e./s2/s2latlng_rect.hf:i27n:
eIn file included from  ../src/s2/util/coding/coder.ha:b40s:
lIn file included from _../src/s2/util/coding/varint.hn:o44n:
nIn file included from u../src/s2/util/bits/bits.hl:l21 :
_In file included from N/usr/local/clang/include/absl/numeric/bits.ho:n52n:
u/usr/local/clang/include/absl/base/internal/endian.hl:l176
:      36| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint6In file included from 4s2-accessors.cpp_:t2 :
LIn file included from o./geography-operator.ha:d76:
4In file included from (./geography.hc:o7n:
sIn file included from t./s2geography.h :v4o:
iIn file included from d./s2geography/accessors-geog.h*: 4a:
bIn file included from s../src/s2/s2convex_hull_query.hl:_25n:
oIn file included from n../src/s2/s2cap.hn:u30l:
lIn file included from  ../src/s2/s1angle.hp:)28 :
{In file included from 
../src/s2/s2point.h      :| 27                                   ^:

In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
In file included from /usr/local/clang/include/absl/strings/cord.h  :24194 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.he:f31i:
n/usr/local/clang/include/absl/synchronization/mutex.he: 1250a:b43s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu l1250l |   _ N o nbnouolll 
(      a| b                     ^s
l::type_identity<T>::type::* absl_nonnull method)())In file included from 
s2-bounds.cpp      :| 2                                          ^:

In file included from ./s2/s2latlng_rect.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/util/coding/coder.h22::40 :
In file included from note: ../src/s2/util/coding/varint.hexpanded from macro 'absl_nonnull':
44:
In file included from   ../src/s2/util/bits/bits.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/numeric/bits.hf:i52n:
e/usr/local/clang/include/absl/base/internal/endian.h :a180b:s27l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l180  | _iNnolninnuel lv
o      i| d                     ^ 
Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2-accessors.cppl: 2_:
NIn file included from o./geography-operator.hn:n7u:
lIn file included from l./geography.h
:      7| :
                     ^In file included from 
./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from In file included from s2-bounds.cpp./s2geography.h::24:
:
In file included from In file included from ./s2/s2latlng_rect.h./s2geography/accessors-geog.h::274:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2convex_hull_query.h::4025:
:
In file included from In file included from ../src/s2/util/coding/varint.h../src/s2/s2cap.h::4430:
:
In file included from In file included from ../src/s2/util/bits/bits.h../src/s2/s1angle.h::2128:
:
In file included from In file included from /usr/local/clang/include/absl/numeric/bits.h../src/s2/s2point.h::5227:
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/s2coder.h::25023::
36In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h250: | 94i:
nIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.hu:i1309n:t351:6 _warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Loa d13091 | 6v(ociodn sRte gviositde*r CaobnsdlV_anroTnrnauclelr (pv)o i{d
       (| *                                   ^a
bsl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
fn  )241( | 
#      d| e                                  ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2-bounds.cpp../src/s2/s2point.h::227:
:
In file included from In file included from ./s2/s2latlng_rect.h../src/s2/s2coder.h::2723:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/status.h::4067:
:
In file included from In file included from ../src/s2/util/coding/varint.h/usr/local/clang/include/absl/status/internal/status_internal.h::4429:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/util/bits/bits.h::9421:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/numeric/bits.h::3152:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/internal/endian.h::1310254::1727::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1310254 |  |  i n l icnoen svto icdh aSrt*o raeb1s6l(_vnooindn*u lalb smls_gn,o ncnounlslt  pv,o iudi*n ta1b6s_lt_ nvo)n n{u
l      l|                            ^c
v)/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2-bounds.cpp::942:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h./s2/s2latlng_rect.h::3127:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/util/coding/coder.h1310::4047:
:In file included from  ../src/s2/util/coding/varint.h:warning: 44type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/bits/bits.h:21 :
1310In file included from  | /usr/local/clang/include/absl/numeric/bits.h : 52 :
 /usr/local/clang/include/absl/base/internal/endian.hc:o258n:s36t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r*   a258b | siln_lnionnen uuliln tm3s2g_,t  cLoonasdt3 2v(ociodn*s ta bvsoli_dn*o nanbuslll_ ncovn)n)u;l
l       | p                                              ^)
 {/usr/local/clang/include/absl/base/nullability.h
:      241| :                                   ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-cell.cpp -o s2-cell.o
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(In file included from ts2-bounds.cpph:i2s:
)In file included from )./s2/s2latlng_rect.h
:      30| :
                                                                ^~~~In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__In file included from 
s2-bounds.cpp      :| 2        ^:

In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | consIn file included from ts2-accessors.cpp :c2h:
aIn file included from r./geography-operator.h*: 7a:
bIn file included from s./geography.hl:_7n:
oIn file included from n./s2geography.hn:u4l:
lIn file included from  ./s2geography/accessors-geog.hM:a4k:
eIn file included from C../src/s2/s2convex_hull_query.hh:e29c:
kIn file included from F../src/s2/s2polygon.ha:i29l:
SIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.hr:i45n:
g/usr/local/clang/include/absl/container/internal/raw_hash_map.h(:
145      :| 58            ^:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/base/nullability.h:241:22  :145  | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s lf_anlosnen,u ltlr u_eN,o nAnBuSlLl_
I      N| T                     ^E
RNAL_SINGLE_In file included from As2-bounds.cppR:G2(:
)In file included from )./s2/s2latlng_rect.h;:
30      :
| In file included from                                                          ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/s2point.h120::279:
:In file included from  ../src/s2/s2coder.h:note: 23macro 'ABSL_INTERNAL_X' defined here:

In file included from /usr/local/clang/include/absl/status/status.h:67:
  /usr/local/clang/include/absl/status/internal/status_internal.h120: | 150#:d25e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ABS  L150_ | I N T E RcNoAnLs_tX (aFbusnlc:,: SCtaaltluese*,  aKbQsula_ln,o nVnQuulall ,s tKaVtaulsu,e ,c oVnVsatl uceh,a rT*a ialb,s l._.n.o)n n\u
l      l|          ^p
refix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull statu/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:,144 :c3o:n swarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
char  *144  | a b sAlB_SnLo_nInNuTlElR NpArLe_fXi(xi)n;s
e      r| t                                                         ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: ,expanded from macro 'absl_nonnull' 
in  s241e | r#td_eofri_naes saibgsnl__inmopnln,u lclo n_sNto&n,n ucloln
s      t| &                     ^,

      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNIn file included from As2-bounds.cppL:_2X:
(In file included from i./s2/s2latlng_rect.hn:s30e:
rIn file included from t../src/s2/s1angle.h_:o28r:
_In file included from a../src/s2/s2point.hs:s27i:
gIn file included from n../src/s2/s2coder.h,: 23i:
ns/usr/local/clang/include/absl/status/status.he:r725t:_38o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sign  _725i | m p ls,t actoincs ts&t,a tcuosn_sitn&t,e rtnraule:,:
S      t| a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
usR  e147p | *   a b s l _ n o n n u l l    P r efpaalrseeT,o MAoBdSiLf_yI(N
T      E| R                                     ^N
AL_/usr/local/clang/include/absl/base/nullability.hS:I241N:G22L:E _note: Aexpanded from macro 'absl_nonnull'R
G()  )241; | 
#      d| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
ine/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a133b:s47l:_ nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
null   133_ | N o n n u l l 
        |                       ^A
BSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),    In file included from  s2-bounds.cpp : 2 :
 In file included from  ./s2/s2latlng_rect.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h :\23
:
      | /usr/local/clang/include/absl/status/status.h                                              ^~~~:
732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:  3732: |   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
t/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:t135i:c16 :c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t s  t135d | : : s t r i n g *   atbhsils_)n)o)n nAuBlSlL _EAmTpTtRyISBtUrTiEn_gL(I)F;E
T      I| M                            ^E
_B/usr/local/clang/include/absl/base/nullability.hO:U241N:D22 :{  note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N\o
n      n| u               ^l
l
/usr/local/clang/include/absl/container/internal/common.h      :| 32                     ^:
9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABIn file included from Ss2-bounds.cppL:_2I:
NIn file included from T./s2/s2latlng_rect.hE:R30N:
AIn file included from L../src/s2/s1angle.h_:I28F:
_In file included from f../src/s2/s2point.ha:l27s:
eIn file included from (../src/s2/s2coder.hi:f23_:
s/usr/local/clang/include/absl/status/status.ha:t733i:s29f:i ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 ..  .733) |   _ _sVtAa_tAiRcG Sc_o_n
s      t|          ^s
td::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |  In file included from  s2-bounds.cpp : 2 :
 In file included from  ./s2/s2latlng_rect.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h :t27r:
uIn file included from e../src/s2/s2coder.h,: 23A:
B/usr/local/clang/include/absl/status/status.hS:L751_:I61N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_S  I751N | G L Es_tAaRtGi(c) )u;i
n      t| p                                                  ^t
r_/usr/local/clang/include/absl/container/internal/raw_hash_map.ht: 120P:o9i:n tnote: emacro 'ABSL_INTERNAL_X' defined herer
ToR  e120p | (#sdteaftiunse_ iAnBtSeLr_nIaNlT:E:RSNtAaLt_uXs(RFeupn*c ,a bCsall_lneoen,n uKlQlu arl),; 
V      Q| u                                                            ^a
l,/usr/local/clang/include/absl/base/nullability.h :K241V:a22l:u enote: ,expanded from macro 'absl_nonnull' 
VV  a241l | u#ed,e fTianiel ,a b.s.l._)n o\n
n      u| l        ^l
 _Nonnull
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                                           ^148
:3:/usr/local/clang/include/absl/base/nullability.h :241warning: :22passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 note: expanded from macro 'absl_nonnull'
  148 |    241  | A#BdSeLf_iInNeT EaRbNsAlL__nXo(ninnuslelr t__Noorn_nauslsli
g      n| ,                     ^ 
insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2-bounds.cpp
:2:
In file included from   ./s2/s2latlng_rect.h165: | 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
  /usr/local/clang/include/absl/status/status.hf:a1031l:s42e:,  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_IN T1031E | RiNnAlLi_nSeI NcGoLnEs_tA RsGt(a)t)u;s
_      i| n                                                   ^t
er/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:a120l::9::S tnote: amacro 'ABSL_INTERNAL_X' defined heret
usR  e120p | *# daebfsiln_en oAnBnSuLl_lI NSTtEaRtNuAsL:_:XR(eFpuTnocP,o iCnatlelre(e
,       | K                                         ^Q
ual,/usr/local/clang/include/absl/base/nullability.h :V241Q:u22a:l ,note:  expanded from macro 'absl_nonnull'K
Va  l241u | e#,d eVfVianleu ea,b sTla_inlo,n n.u.l.l)  _\N
o      n| n        ^u
ll
      |                      ^
In file included from s2-bounds.cpp:2:
In file included from ./s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::Status/usr/local/clang/include/absl/container/internal/raw_hash_map.hR:e164p:*3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_non  n164u | l l  ArBeSpL)_ I{N
T      E| R                                ^N
AL_/usr/local/clang/include/absl/base/nullability.hX:(241i:n22s:e rnote: texpanded from macro 'absl_nonnull'_
or  _241a | s#sdiegfni,n ei nasbesrlt__noorn_nauslsli g_nN_oinmnpull,l 
&      &| ,                     ^ 
const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45In file included from :
s2-bounds.cpp:/usr/local/clang/include/absl/container/internal/raw_hash_map.h2::
164In file included from :./s2/s2latlng_rect.h3::30 :
In file included from warning: ../src/s2/s1angle.h:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h  :16423 | :
 /usr/local/clang/include/absl/status/status.h :A1063B:S13L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN A1063L | _cXo(nisnts ecrhta_ro*r _aabsssli_gnno,n niunlsle rStt_aotru_saMsessisgang_eiAmspClS,t r&(&
,       | c            ^o
nst/usr/local/clang/include/absl/base/nullability.h&:,241 :t22r:u enote: ,expanded from macro 'absl_nonnull'

      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
 | #d  e165f | i n e   a b s l _ n o n n u l l   _ Nfoanlnsuel,l 
A      B| S                     ^L
_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-accessors.cpp:2:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-bounds.cpp:3:
In file included from ./s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:3:
In file included from ./s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2-bounds.cpp::215:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h./s2-options.h::417:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h./s2/s2boolean_operation.h::2626:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2builder.h::42636::
31In file included from :../src/s2/mutable_s2shape_index.h :30warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h426: | 70 :
 In file included from L/usr/local/clang/include/absl/container/internal/layout.ho:g198M:
eIn file included from s/usr/local/clang/include/absl/strings/str_cat.hs:a116g:
eIn file included from F/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:t23a:
l(/usr/local/clang/include/absl/strings/numbers.hc:o66n:s41t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r* a   b66s | l _ n o n n u l l   f i l e ,   i n t   l i n e , 
        |                                ^ 
 i/usr/local/clang/include/absl/base/nullability.hn:t241_:t22y:p enote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  aobustl)_;n
o      n| n                                        ^u
ll _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^
  241 | #defineIn file included from  s2-cell.cppa:b8s:
lIn file included from _./s2/s2cell_id.hn:o37n:
nIn file included from u../src/s2/base/logging.hl:l21 :
_In file included from N/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   coIn file included from ns2-bounds.cpps:t5 :
cIn file included from h./s2-options.ha:r7*:
 In file included from a./s2/s2boolean_operation.hb:s26l:
_In file included from n../src/s2/s2builder.ho:n36n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30f:
aIn file included from i/usr/local/clang/include/absl/container/btree_map.hl:u66r:
eIn file included from _/usr/local/clang/include/absl/container/internal/btree.hm:s70g:
)In file included from  /usr/local/clang/include/absl/container/internal/layout.hA:B198S:
LIn file included from _/usr/local/clang/include/absl/strings/str_cat.hA:T116T:
RIn file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hB:U23T:
E/usr/local/clang/include/absl/strings/numbers.h_:C77O:L61D:; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                              ^

/usr/local/clang/include/absl/base/nullability.h:241   :7722 | :[ [note: nexpanded from macro 'absl_nonnull'o
di  s241c | a#rdde]f]i nbeo oalb sSli_mnpolnenAutlolf (_aNbosnln:u:lslt
r      i| n                     ^g
_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2-cell.cppl:
8      :
| In file included from                      ^./s2/s2cell_id.h
:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: In file included from warning: s2-bounds.cpptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
5:
In file included from ./s2-options.h:  7436:
 | In file included from  ./s2/s2boolean_operation.h :L26o:
gIn file included from M../src/s2/s2builder.he:s36s:
aIn file included from g../src/s2/mutable_s2shape_index.he:D30e:
bIn file included from u/usr/local/clang/include/absl/container/btree_map.hg:F66a:
tIn file included from a/usr/local/clang/include/absl/container/internal/btree.hl:(70c:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hs:t198 :
cIn file included from h/usr/local/clang/include/absl/strings/str_cat.ha:116r:
*In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n88o:n62n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
file   ,88
 |       [| [                                   ^n
od/usr/local/clang/include/absl/base/nullability.hi:s241c:a22r:d ]note: ]expanded from macro 'absl_nonnull' 
bo  o241l |  #SdiemfpilneeA taobds(la_bnsoln:n:usltlr i_nNgo_nvniuelwl 
s      t| r                     ^,
 double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2-cell.cppo:n8n:
uIn file included from l./s2/s2cell_id.hl:
37      :
| In file included from                      ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2-bounds.cpp446: | 5 :
 In file included from L./s2-options.ho:g7M:
eIn file included from s./s2/s2boolean_operation.hs:a26g:
eIn file included from Q../src/s2/s2builder.hu:i36e:
tIn file included from l../src/s2/mutable_s2shape_index.hy:D30e:
bIn file included from u/usr/local/clang/include/absl/container/btree_map.hg:F66a:
tIn file included from a/usr/local/clang/include/absl/container/internal/btree.hl:(70c:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hs:t198 :
cIn file included from h/usr/local/clang/include/absl/strings/str_cat.ha:r116*:
 In file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hb:s23l:
_/usr/local/clang/include/absl/strings/numbers.hn:o98n:n60u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ile,   
98       | | [                                          ^[
no/usr/local/clang/include/absl/base/nullability.hd:i241s:c22a:r dnote: ]expanded from macro 'absl_nonnull']
 b  o241o | l# dSeifmipnlee Aatbosbl(_anbosnln:u:lslt r_iNnogn_nvuilelw
       s| t                     ^r
, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2-cell.cppn:u8l:
lIn file included from 
./s2/s2cell_id.h      :| 37                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2-bounds.cpp454: | 5 :
 In file included from L./s2-options.ho:g7M:
eIn file included from s./s2/s2boolean_operation.hs:a26g:
eIn file included from Q../src/s2/s2builder.hu:i36e:
tIn file included from l../src/s2/mutable_s2shape_index.hy:F30a:
tIn file included from a/usr/local/clang/include/absl/container/btree_map.hl:(66c:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hs:t70 :
cIn file included from h/usr/local/clang/include/absl/container/internal/layout.ha:r198*:
 In file included from a/usr/local/clang/include/absl/strings/str_cat.hb:s116l:
_In file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l112 :f44i:l ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                      ^
  112 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l li n_tN_otnynpuel*l 
a      b| s                     ^l
_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2-cell.cpp:note: 8expanded from macro 'absl_nonnull':

In file included from ./s2/s2cell_id.h:  37241:
 | In file included from #../src/s2/base/logging.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from  /usr/local/clang/include/absl/log/internal/strip.h_:N26o:
n/usr/local/clang/include/absl/log/internal/log_message.hn:u456l:l38
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  456 |   LogMessageQuietlyFatal(coIn file included from ns2-bounds.cpps:t5 :
cIn file included from h./s2-options.ha:r7*:
 In file included from a./s2/s2boolean_operation.hb:s26l:
_In file included from ../src/s2/s2builder.hn:o36n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
fIn file included from i/usr/local/clang/include/absl/container/btree_map.hl:e66,:
 In file included from i/usr/local/clang/include/absl/container/internal/btree.hn:t70 :
lIn file included from i/usr/local/clang/include/absl/container/internal/layout.hn:e198,:

In file included from       /usr/local/clang/include/absl/strings/str_cat.h| :                                     ^116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/base/nullability.h::23241:
:22/usr/local/clang/include/absl/strings/numbers.h:: 116:note: 55expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f116i | n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
        In file included from  s2-cell.cpp : 8 :
aIn file included from b./s2/s2cell_id.hs:l37::
:In file included from i../src/s2/base/logging.hn:t211:
2In file included from 8/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from  /usr/local/clang/include/absl/log/internal/strip.ho:u26t:
)/usr/local/clang/include/absl/log/internal/log_message.h;:
457      :| 38                                                      ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   457 | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull failure_msg)
      |                                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/base/nullability.h70::
241In file included from :/usr/local/clang/include/absl/container/internal/layout.h22::198 :
In file included from note: /usr/local/clang/include/absl/strings/str_cat.hexpanded from macro 'absl_nonnull':
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h  :24123 | :
#/usr/local/clang/include/absl/strings/numbers.hd:e118f:i56n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o118n | n u l l   _ N o n n u l l 
        |                       ^ 
                       absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,In file included from 
s2-cell.cpp      :| 8                                                      ^:

In file included from ./s2/s2cell_id.h:/usr/local/clang/include/absl/base/nullability.h37::
241In file included from :../src/s2/base/logging.h22::21 :
In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nonnull':
37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h241: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f180i:n42e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n180n | uAlBlS L__NAoTnTnRuIlBlU
T      E| _                     ^P
URE_FUNCTION const char*In file included from  s2-bounds.cppa:b5s:
lIn file included from _./s2-options.hn:o7n:
nIn file included from u./s2/s2boolean_operation.hl:l26 :
MIn file included from a../src/s2/s2builder.hk:e36C:
hIn file included from e../src/s2/mutable_s2shape_index.hc:k30F:
aIn file included from i/usr/local/clang/include/absl/container/btree_map.hl:S66t:
rIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:g70(:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :                                         ^198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/base/nullability.h::116241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23:
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull':
158:57  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e158  | abbosoll_ nsoanfneu_lslt r_tNoo1n6n_ublals
e      (| a                     ^b
sl::stringIn file included from _s2-cell.cppv:i8e:
wIn file included from  ./s2/s2cell_id.ht:e37x:
tIn file included from ,../src/s2/base/logging.h :i21n:
tIn file included from 1/usr/local/clang/include/absl/log/check.h6:_37t:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n181o:n25n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
valu  e181, | 
        |                                                          ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22a:b snote: lexpanded from macro 'absl_nonnull':
:S  t241a | t#udse*f ianbes la_bnsoln_nnuolnln usltla t_uNso,n ncuolnls
t       | c                     ^h
ar* absl_nonnull prefix);
In file included from       s2-bounds.cpp| :                        ^5
:
In file included from ./s2-options.h/usr/local/clang/include/absl/base/nullability.h::7241:
:In file included from 22./s2/s2boolean_operation.h:: 26:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2builder.h
:36:
  In file included from 241../src/s2/mutable_s2shape_index.h | :#30d:
eIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:n66e:
 In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s70l:
_In file included from n/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl: 116_:
NIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl:
160      :| 57                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bIn file included from os2-cell.cppo:l8 :
sIn file included from a./s2/s2cell_id.hf:e37_:
sIn file included from t../src/s2/base/logging.hr:t21o:
3In file included from 2/usr/local/clang/include/absl/log/check.h_:b37a:
sIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h(:a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl::181::s58t:r iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
_vi  e181w |   t e x tc,o nisntt 3a2b_stl*: :aSbtsalt_unso*n naublsll _vnaolnuneu,l
l       | s                                                        ^t
at/usr/local/clang/include/absl/base/nullability.hu:s241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo npnruelfli x_)N;o
n      n| u                                                         ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2-bounds.cpp_:N5o:
nIn file included from n./s2-options.hu:l7l:

In file included from       ./s2/s2boolean_operation.h| :                     ^26
:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
In file included from /usr/local/clang/include/absl/strings/numbers.hs2-cell.cpp::1628::
57In file included from :./s2/s2cell_id.h :37warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :16237 | :
bIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.ho:l21 :
s/usr/local/clang/include/absl/log/internal/check_op.ha:f189e:_28s:t rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
64_b  a189s | ei(nalbisnle: :csotnrsitn ga_bvsile:w: Stteaxttu,s *i natb6s4l__tn*o nanbuslll_ nAosnSntualtlu sv(aclounes,t
       a| b                                                        ^s
l:/usr/local/clang/include/absl/base/nullability.h::S241t:a22t:u snote: &expanded from macro 'absl_nonnull' 
s)   241{ | 
#      d| e                           ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   In file included from  s2-cell.cpp : 8 :
 In file included from  ./s2/s2cell_id.h : 37 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl::193::i21n:t 1warning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]8
* ab  s193l | _cnoonnsntu lalb svla:l:uSet,a tiunst*  baabssel)_;n
o      n| n                                      ^u
ll/usr/local/clang/include/absl/base/nullability.h :A241s:S22t:a tnote: uexpanded from macro 'absl_nonnull's
(c  o241n | s#td eafbisnle: :aSbtsalt_unsoOnrn<uTl>l&  _sN)o n{n
u      l| l                    ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2-bounds.cppo:n5n:
uIn file included from l./s2-options.hl: 7_:
NIn file included from o./s2/s2boolean_operation.hn:n26u:
lIn file included from l../src/s2/s2builder.h
:      36| :
                     ^In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtoIn file included from us2-cell.cpp8:_8b:
aIn file included from s./s2/s2cell_id.he:(37a:
bIn file included from s../src/s2/base/logging.hl::21::
sIn file included from t/usr/local/clang/include/absl/log/check.hr:i37n:
gIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hv:i21e:
w/usr/local/clang/include/absl/log/internal/check_op.h :t202e:x46t:,  warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nt8_  t202* |   a besxlp_lniocnintu lClh evcaklOupeM,e
s      s| a                                                        ^g
eB/usr/local/clang/include/absl/base/nullability.hu:i241l:d22e:r (note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu lelx p_rNtoenxntu)l;l

            | |                                              ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2-bounds.cpps:l5_:
nIn file included from o./s2-options.hn:n7u:
lIn file included from l./s2/s2boolean_operation.h :_26N:
oIn file included from n../src/s2/s2builder.hn:u36l:
lIn file included from 
../src/s2/mutable_s2shape_index.h      :| 30                     ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absIn file included from ls2-cell.cpp:::8s:
tIn file included from r./s2/s2cell_id.hi:n37g:
_In file included from v../src/s2/base/logging.hi:e21w:
 In file included from t/usr/local/clang/include/absl/log/check.he:x37t:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hu:i21n:
t/usr/local/clang/include/absl/log/internal/check_op.h1:6209_:t15*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o209n | n u lclo nvsatl uceh,a
r      *|                                                            ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 N  e241w | S#tdreifnign(e) ;a
b      s| l              ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  ul241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      | In file included from                      ^s2-bounds.cpp
:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2-cell.cpp
:      8| :
                     ^In file included from 
./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
s2-bounds.cpp:5:
In file included from ./s2-options.h  :2267 | :
vIn file included from o./s2/s2boolean_operation.hi:d26 :
MIn file included from a../src/s2/s2builder.hk:e36C:
hIn file included from e../src/s2/mutable_s2shape_index.hc:k30O:
pIn file included from V/usr/local/clang/include/absl/container/btree_map.ha:l66u:
eIn file included from S/usr/local/clang/include/absl/container/internal/btree.ht:r70i:
nIn file included from g/usr/local/clang/include/absl/container/internal/layout.h(:s198t:
dIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::o116s:
tIn file included from r/usr/local/clang/include/absl/strings/internal/stringify_sink.he:a23m:
&/usr/local/clang/include/absl/strings/numbers.h :o172s:,59 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t vo  i172d | *b oaobls ls_anfuel_lsatbrlteo up6)4;_
b      a| s                                                          ^e
(a/usr/local/clang/include/absl/base/nullability.hb:s257l::23::s tnote: rexpanded from macro 'absl_nullable'i
ng  _257v | i#edwe ftienxet ,a busiln_tn6u4l_lta*b laeb s_lN_unlolnanbullel
       v| a                      ^l
ue,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2-cell.cpp | :#8d:
eIn file included from f./s2/s2cell_id.hi:n37e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n276n:u13l:l 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^

  276 | const void* absl_nullable operator<<(std:In file included from :s2-bounds.cppo:s5t:
rIn file included from e./s2-options.ha:m7&:
,In file included from 
./s2/s2boolean_operation.h      :| 26            ^:

In file included from ../src/s2/s2builder.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/mutable_s2shape_index.h::2330::
 In file included from /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'absl_nullable'66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h  :25770 | :
#In file included from d/usr/local/clang/include/absl/container/internal/layout.he:f198i:
nIn file included from e/usr/local/clang/include/absl/strings/str_cat.h :a116b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl:a182b:l7e:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab  l182e | 
c      h| a                      ^r
* absl_nonIn file included from ns2-cell.cppu:l8l:
 In file included from R./s2/s2cell_id.ho:u37n:
dIn file included from T../src/s2/base/logging.hr:i21p:
DIn file included from o/usr/local/clang/include/absl/log/check.hu:b37l:
eIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.ho:B21u:
f/usr/local/clang/include/absl/log/internal/check_op.hf:e277r:(50d:o uwarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
e d,   c277h | a r *   a b s l _ n o n n u l l   b u f f e r ) ; 
        |        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  cnote: oexpanded from macro 'absl_nonnull'n
st   241v | o#idde*f ianbes la_bnsull_lnaobnlneu lvla l_uNeo)n;n
u      l| l                                                 ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from ds2-bounds.cppe:f5i:
nIn file included from e./s2-options.h :a7b:
sIn file included from l./s2/s2boolean_operation.h_:n26u:
lIn file included from l../src/s2/s2builder.ha:b36l:
eIn file included from  ../src/s2/mutable_s2shape_index.h_:N30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.ha:b66l:
eIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                      ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2-cell.cpp  :1828 | :
cIn file included from h./s2/s2cell_id.ha:r37*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21R:
o/usr/local/clang/include/absl/log/internal/check_op.hu:n278d:T13r:i pwarning: Dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
ubl  e278T | ocBounfsfte rv(odiodu*b laeb sdl,_ ncuhlalra*b laeb solp_enroantnourl<l< (bsutfdf:e:ro)s;t
r      e| a                                                           ^m
&,/usr/local/clang/include/absl/base/nullability.h :s241t:d22::: nnote: uexpanded from macro 'absl_nonnull'l
lp  t241r | _#td)e;f
i      n| e            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
e       | a                     ^b
sl_nullable _Nullable
      In file included from | s2-bounds.cpp                      ^:
5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_noIn file included from ns2-cell.cppn:u8l:
lIn file included from  ./s2/s2cell_id.hb:u37f:
fIn file included from e../src/s2/base/logging.hr:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :      ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 292:note: 13expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f292i | nceo nasbts lc_hnaorn*n ualbls l__Nnoonnnnuullll
       o| p                     ^e
rator<<In file included from (s2-bounds.cpps:t5d:
:In file included from :./s2-options.hb:a7s:
iIn file included from c./s2/s2boolean_operation.h_:o26s:
tIn file included from r../src/s2/s2builder.he:a36m:
<In file included from c../src/s2/mutable_s2shape_index.hh:a30r:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hT:r66a:
iIn file included from t/usr/local/clang/include/absl/container/internal/btree.hs:>70&:
,In file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198            ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/base/nullability.h116::
241In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h22::23 :
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull':
183:58  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n183e |  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln uRlolu
n      d| T                     ^r
ipFloatToBuffer(flIn file included from os2-cell.cppa:t8 :
fIn file included from ,./s2/s2cell_id.h :c37h:
aIn file included from r../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h :b293u:f49f:e rwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                          ^  
293 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ Ncoonnnsutl lc
h      a| r                     ^*
 absl_nonnull);
In file included from       s2-bounds.cpp| :                                                ^5
:
In file included from ./s2-options.h/usr/local/clang/include/absl/base/nullability.h::7241:
:In file included from 22./s2/s2boolean_operation.h:: 26:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2builder.h
:36:
  In file included from 241../src/s2/mutable_s2shape_index.h | :#30d:
eIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:n66e:
 In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s70l:
_In file included from n/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl: 116_:
NIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl:
191      :| 42                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsIn file included from Ts2-cell.cppo:B8u:
fIn file included from f./s2/s2cell_id.he:r37(:
dIn file included from o../src/s2/base/logging.hu:b21l:
eIn file included from  /usr/local/clang/include/absl/log/check.hd:,37 :
cIn file included from h/usr/local/clang/include/absl/log/internal/check_impl.ha:r21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b295s:l20_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   b295u | fcfoenrs)t; 
s      i| g                                         ^n
ed/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln eo paebrsalt_onro<n<n(usltld :_:Nboansniucl_lo
s      t| r                     ^e
am<char, TraitIn file included from ss2-bounds.cpp>:&5,:

In file included from       ./s2-options.h| :                   ^7
:
In file included from ./s2/s2boolean_operation.h/usr/local/clang/include/absl/base/nullability.h::26241:
:In file included from 22../src/s2/s2builder.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/mutable_s2shape_index.h
:30:
  In file included from 241/usr/local/clang/include/absl/container/btree_map.h | :#66d:
eIn file included from f/usr/local/clang/include/absl/container/internal/btree.hi:n70e:
 In file included from a/usr/local/clang/include/absl/container/internal/layout.hb:s198l:
_In file included from n/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl: 23_:
N/usr/local/clang/include/absl/strings/numbers.ho:n198n:u7l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  198 | char* absl_In file included from ns2-cell.cppo:n8n:
uIn file included from l./s2/s2cell_id.hl: 37F:
aIn file included from s../src/s2/base/logging.ht:I21n:
tIn file included from T/usr/local/clang/include/absl/log/check.ho:B37u:
fIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.he:r21(:
i/usr/local/clang/include/absl/log/internal/check_op.hn:t2963:263_:t  warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 ch  a296r | *   a b s l _ n o n n u l l   b u f f e r ) 
        |        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dceofnisnte  saibgsnle_dn ocnhnaurl*l  a_bNsoln_nnuolnln
u      l| l                     ^)
;
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2-bounds.cpp22::5 :
In file included from note: ./s2-options.hexpanded from macro 'absl_nonnull':
7:
In file included from   ./s2/s2boolean_operation.h241: | 26#:
dIn file included from e../src/s2/s2builder.hf:i36n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l70 :
_In file included from N/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl:
116      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_In file included from ns2-cell.cppo:n8n:
uIn file included from l./s2/s2cell_id.hl: 37F:
aIn file included from s../src/s2/base/logging.ht:I21n:
tIn file included from T/usr/local/clang/include/absl/log/check.ho:B37u:
fIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.he:r21(:
i/usr/local/clang/include/absl/log/internal/check_op.hn:t2983:222_:t  warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 cha  r298* |  caobnsslt_ nuonnsniuglnle db ucfhfaerr*) 
a      b| s                                                    ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: oexpanded from macro 'absl_nonnull'p
er  a241t | o#rd<e<f(isnted :a:bbsals_inco_nonsutlrle a_mN<ocnhnaurl,l 
T      r| a                     ^i
ts>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:In file included from 7s2-cell.cpp:
:In file included from 8./s2/s2boolean_operation.h:
:In file included from 26./s2/s2cell_id.h:
:In file included from 37../src/s2/s2builder.h:
:In file included from 36../src/s2/base/logging.h:
:In file included from 21../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/container/internal/btree.h:
:/usr/local/clang/include/absl/log/internal/check_op.h70::
299In file included from :/usr/local/clang/include/absl/container/internal/layout.h67::198 :
In file included from warning: /usr/local/clang/include/absl/strings/str_cat.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:  23299:
 | /usr/local/clang/include/absl/strings/numbers.h : 199 : 5 :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat] 
       199  |          A B S L _ I N T E R N A L _ N E E D _ M I N _ S I ZcEo(nbsutf fuenrs,i gknFeads tcThoaBru*f faebrsSli_zneo)n;n
u      l| l    ^)
;
      /usr/local/clang/include/absl/base/macros.h| :                                                                  ^251
:18:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'22
: note:   expanded from macro 'absl_nonnull'251
 |     241_ | _#adtetfriinbeu taeb_s_l(_(ndoinangunlols e__Niofn(n_u_lblu
i      l| t                     ^i
n_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2-cell.cpp:nul8l:

In file included from       ./s2/s2cell_id.h| :                     ^37
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2-bounds.cpp::3235::
46In file included from :./s2-options.h :7warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]./s2/s2boolean_operation.h
:26:
In file included from ../src/s2/s2builder.h:  36323:
 | In file included from  ../src/s2/mutable_s2shape_index.h :f30r:
iIn file included from e/usr/local/clang/include/absl/container/btree_map.hn:d66 :
vIn file included from o/usr/local/clang/include/absl/container/internal/btree.hi:d70 :
AIn file included from b/usr/local/clang/include/absl/container/internal/layout.hs:l198F:
oIn file included from r/usr/local/clang/include/absl/strings/str_cat.hm:a116t:
FIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:s23h:
(/usr/local/clang/include/absl/strings/numbers.hS:t200r:i54n:g iwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
Sin  k200* |  cahbasrl*_ naobnsnlu_lnlo nsniunlkl, 
F      a| s                                             ^t
Int/usr/local/clang/include/absl/base/nullability.hT:o241B:u22f:f enote: rexpanded from macro 'absl_nonnull'(
ui  n241t | 3#2d_etf inn,e  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln uolult
_      s| t                     ^r
)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2-cell.cpps2-bounds.cpp::85:
:
In file included from In file included from ./s2/s2cell_id.h./s2-options.h::377:
:
In file included from In file included from ../src/s2/base/logging.h./s2/s2boolean_operation.h::2126:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2builder.h::3736:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/mutable_s2shape_index.h::2130:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::42866::
44In file included from :/usr/local/clang/include/absl/container/internal/btree.h :70warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h  :428116 | :
AIn file included from B/usr/local/clang/include/absl/strings/internal/stringify_sink.hS:L23_:
A/usr/local/clang/include/absl/strings/numbers.hT:T203R:I5B:U Twarning: E'diagnose_if' is a clang extension [-Wgcc-compat]_
RET  U203R | N S _ N OANBNSULL_LI NcToEnRsNtA Lc_hNaErE*D _aMbIsNl__SnIoZnEn(ublulf fMeark,e CkhFeacsktOTpoSBturfifnegr(S
i      z| e                                           ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :    ^241
:22:/usr/local/clang/include/absl/base/macros.h :251note: :expanded from macro 'absl_nonnull'18
:   note: 241expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' | 
#de  f251i | n e  _a_bastlt_rniobnuntuel_l_ (_(Ndoinangunlols
e      _| i                     ^f
(__builtinIn file included from _s2-cell.cppo:b8j:
eIn file included from c./s2/s2cell_id.ht:_37s:
iIn file included from z../src/s2/base/logging.he:(21O:
bIn file included from j/usr/local/clang/include/absl/log/check.h,: 370:
)In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h<: 21N:
,/usr/local/clang/include/absl/log/internal/check_op.h :\429
:      31| :                 ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     TIn file included from 1s2-bounds.cpp :v51:
,In file included from  ./s2-options.hT:27 :
vIn file included from 2./s2/s2boolean_operation.h,: 26c:
oIn file included from n../src/s2/s2builder.hs:t36 :
cIn file included from h../src/s2/mutable_s2shape_index.ha:r30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.ho:n70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl:198 :
eIn file included from x/usr/local/clang/include/absl/strings/str_cat.hp:r116t:
eIn file included from x/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:)23 :
A/usr/local/clang/include/absl/strings/numbers.hB:S204L:_7A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUTE  _204N | OcIhNaLrI*N Ea;b
s      l| _                              ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :F anote: sexpanded from macro 'absl_nonnull't
In  t241T | o#Bduefffienre( uaibnstl6_4n_otn niu,l lc h_aNro*n naublsll
_      n| o                     ^n
null buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2-cell.cppn:e8 :
aIn file included from b./s2/s2cell_id.hs:l37_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h
:      432| :                     ^13
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | cIn file included from os2-bounds.cppn:s5t:
 In file included from c./s2-options.hh:a7r:
*In file included from  ./s2/s2boolean_operation.ha:b26s:
lIn file included from _../src/s2/s2builder.hn:o36n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
MIn file included from a/usr/local/clang/include/absl/container/btree_map.hk:e66C:
hIn file included from e/usr/local/clang/include/absl/container/internal/btree.hc:k70O:
pIn file included from S/usr/local/clang/include/absl/container/internal/layout.ht:r198i:
nIn file included from g/usr/local/clang/include/absl/strings/str_cat.h(:T1161:
 In file included from v/usr/local/clang/include/absl/strings/internal/stringify_sink.h1:,23 :
T/usr/local/clang/include/absl/strings/numbers.h2: 204v:254,:
       | warning:             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :20422 | :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sFla_sntoInnntuTlolB u_fNfoenrn(uuliln
t      6| 4                     ^_
t i, chaIn file included from rs2-cell.cpp*: 8a:
bIn file included from s./s2/s2cell_id.hl:_37n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hb:u37f:
fIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:)21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                                                     ^433
:56:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'433
 |     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
      const char* absl_nonnull exprtext) {
      |                                                        ^In file included from 
s2-bounds.cpp:/usr/local/clang/include/absl/base/nullability.h5::
241In file included from :./s2-options.h22::7 :
In file included from note: ./s2/s2boolean_operation.hexpanded from macro 'absl_nonnull':
26:
In file included from   ../src/s2/s2builder.h241: | 36#:
dIn file included from e../src/s2/mutable_s2shape_index.hf:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198 :
_In file included from N/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:
23      :
| /usr/local/clang/include/absl/strings/numbers.h                     ^:
205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from In file included from s2-cell.cpp/usr/local/clang/include/absl/strings/internal/stringify_sink.h::823:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h./s2/s2cell_id.h::20637::
7In file included from :../src/s2/base/logging.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h206: | 21c:
h/usr/local/clang/include/absl/log/internal/check_op.ha:r451*: 1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n451u | lAlB SFLa_sLtOIGn_tITNoTBEuRfNfAeLr_(DiEnFtI1N2E8_ MiA,K Ec_hCaHrE*C Ka_bOsPl__SnToRnInNuGl_lE XbTuEfRfNe(rb)o
o      l| )      ^;

      | /usr/local/clang/include/absl/base/nullability.h^:
241:22:/usr/local/clang/include/absl/log/internal/check_op.h :449note: :expanded from macro 'absl_nonnull'31
:   note: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
#de  f449i | n e  eaxbtselr_nn otnenmupllla t_eN ocnonnusltl 
c      h| a                     ^r
* absl_nonnullIn file included from  s2-bounds.cppM:a5k:
eIn file included from C./s2-options.hh:e7c:
kIn file included from O./s2/s2boolean_operation.hp:S26t:
rIn file included from i../src/s2/s2builder.hn:g36(:
 In file included from  ../src/s2/mutable_s2shape_index.h :\30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                              ^:
66:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h::24170::
22In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n206e: 52a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n206u | lclh a_rN*o nanbuslll_
n      o| n                     ^n
ull FasIn file included from ts2-cell.cppI:n8t:
TIn file included from o./s2/s2cell_id.hB:u37f:
fIn file included from e../src/s2/base/logging.hr:(21i:
nIn file included from t/usr/local/clang/include/absl/log/check.h1:2378:
 In file included from i/usr/local/clang/include/absl/log/internal/check_impl.h,: 21c:
h/usr/local/clang/include/absl/log/internal/check_op.ha:r451*: 1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
no/usr/local/clang/include/absl/log/internal/check_op.hn:n450u:l25l:  bnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'f
fe  r450) | 
        |                                                     ^ 
  /usr/local/clang/include/absl/base/nullability.hx:,241 :x22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsoln_nnuolnln)u
l      l|                          ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :s2-cell.cpp23::
8:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :./s2/s2cell_id.h207::375:
:In file included from  ../src/s2/base/logging.h:warning: 21'diagnose_if' is a clang extension [-Wgcc-compat]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 207/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :A452B:S1L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN  A452L | _ANBESELD__LMOIGN__ISNITZEER(NbAuLf_fDeErF,I NkEF_aMsAtKTEo_BCuHfEfCeKr_1O2P8_SSiTzReI)N;G
_      E| X    ^T
ER/usr/local/clang/include/absl/base/macros.hN:(251i:n18t:6 4note: _expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE't
);
        251|  | ^ 
 _/usr/local/clang/include/absl/log/internal/check_op.h_:a449t:t31r:i bnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't
e__  (449( | d i aegxntoesren_ itfe(m_p_lbautiel tcionn_sotb jcehcatr_*s iazbes(lO_bnjo,n n0u)l l<  MNa,k e\C
h      e| c                 ^k
OpString(   \In file included from 
s2-bounds.cpp      :| 5                              ^:

In file included from ./s2-options.h:/usr/local/clang/include/absl/base/nullability.h7::
241In file included from :./s2/s2boolean_operation.h22::26 :
In file included from note: ../src/s2/s2builder.hexpanded from macro 'absl_nonnull':
36:
In file included from   ../src/s2/mutable_s2shape_index.h241: | 30#:
dIn file included from e/usr/local/clang/include/absl/container/btree_map.hf:i66n:
eIn file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from _/usr/local/clang/include/absl/container/internal/layout.hn:o198n:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116 :
_In file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l208
:      7| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | chaIn file included from rs2-cell.cpp*: 8a:
bIn file included from s./s2/s2cell_id.hl:_37n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hF:a37s:
tIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hn:t21T:
o/usr/local/clang/include/absl/log/internal/check_op.hB:u452f:f1e:r (warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nt/usr/local/clang/include/absl/log/internal/check_op.h1:24508: 25i:,  note: cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'h
ar  *450  | a b s l _ n oxn,n uxl,l  cbounfsfte rc)h
a      r| *      ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l)  
241       | | #                        ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _NonnIn file included from us2-bounds.cppl:l5
:
      In file included from | ./s2-options.h                     ^:
7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
In file included from /usr/local/clang/include/absl/strings/numbers.hs2-cell.cpp::2088::
53In file included from :./s2/s2cell_id.h :37warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
In file included from   /usr/local/clang/include/absl/log/check.h208: | 37c:
hIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hr:*21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s453l:_1n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   453F | aAsBtSILn_tLTOoGB_uIfNfTeErR(NuAiLn_tD1E2F8I NiE,_ McAhKaEr_*C HaEbCsKl__OnPo_nSnTuRlIlN Gb_uEfXfTeErR)N
(      u| i                                                    ^n
t6/usr/local/clang/include/absl/base/nullability.h4:_241t:)22;:
       | note: ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/log/internal/check_op.h  :241449 | :#31d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e a  b449s | l _ neoxntneurlnl  t_eNmopnlnautlel 
c      o| n                     ^s
t char* absl_nonnull MakeCheckOpString(   \
      | In file included from                               ^s2-bounds.cpp
:5/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241./s2-options.h::227::
 In file included from ./s2/s2boolean_operation.hnote: :expanded from macro 'absl_nonnull'26
:
In file included from ../src/s2/s2builder.h  :24136 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f30i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n70o:
nIn file included from n/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
 In file included from _/usr/local/clang/include/absl/strings/str_cat.hN:o116n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23
:
      | /usr/local/clang/include/absl/strings/numbers.h                     ^:
209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  In file included from 209s2-cell.cpp | : 8 :
 In file included from  ./s2/s2cell_id.hA:B37S:
LIn file included from _../src/s2/base/logging.hI:N21T:
EIn file included from R/usr/local/clang/include/absl/log/check.hN:A37L:
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.hE:E21D:
_/usr/local/clang/include/absl/log/internal/check_op.hM:I453N:_1S:I Zwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
bu/usr/local/clang/include/absl/log/internal/check_op.hf:f450e:r25,:  knote: Fexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
st  T450o | B u f f e r 1x2,8 Sxi,z ec)o;n
s      t|      ^c
ha/usr/local/clang/include/absl/base/macros.hr:*251 :a18b:s lnote: _expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'n
onn  u251l | l ) 
_      _| a                        ^t
tr/usr/local/clang/include/absl/base/nullability.hi:b241u:t22e:_ _note: (expanded from macro 'absl_nonnull'(
di  a241g | n#odseef_iinfe( _a_bbsuli_lntoinnn_uolblj e_cNto_nsniuzlel(
O      b| j                     ^,
 0) < N, \
      |                  ^
In file included from In file included from s2-cell.cpps2-bounds.cpp::85:
:
In file included from In file included from ./s2/s2cell_id.h./s2-options.h::377:
:
In file included from In file included from ../src/s2/base/logging.h./s2/s2boolean_operation.h::2126:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2builder.h::3736:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/mutable_s2shape_index.h::2130:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::45466::
1In file included from :/usr/local/clang/include/absl/container/internal/btree.h :70warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from   /usr/local/clang/include/absl/strings/str_cat.h454: | 116A:
BIn file included from S/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23L:
O/usr/local/clang/include/absl/strings/numbers.hG:_215I:N7T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_D  E215F | IcNhEa_rM*A KaEb_sClH_EnCoKn_nOuPl_lS TFRaIsNtGI_nEtXTToEBRuNf(ffelro(aitn)t;_
t      y| p^e
 i/usr/local/clang/include/absl/log/internal/check_op.h,:
449      :| 31      ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
241:22:   449 | note:  expanded from macro 'absl_nonnull' 
ex  t241e | r#nd etfeimnpel aatbes lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll MakeChIn file included from es2-bounds.cppc:k5O:
pIn file included from S./s2-options.ht:r7i:
nIn file included from g./s2/s2boolean_operation.h(: 26 :
 In file included from \../src/s2/s2builder.h
:      36| :
                              ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2266::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'absl_nonnull'70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :241198 | :
#In file included from d/usr/local/clang/include/absl/strings/str_cat.he:f116i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :a23b:
s/usr/local/clang/include/absl/strings/numbers.hl:_216n:o49: warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   216_ | N o n n u l l 
        |                       ^ 
       In file included from  s2-cell.cpp : 8 :
 In file included from  ./s2/s2cell_id.h : 37 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
c/usr/local/clang/include/absl/log/internal/check_op.hh:a454r:*1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_/usr/local/clang/include/absl/log/internal/check_op.hn:o450n:n25u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
uf  f450e | r ) 
        |                                                  ^ 
x,/usr/local/clang/include/absl/base/nullability.h :x241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r*# daebfsiln_en oanbnsull_ln)o
n      n| u                        ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:In file included from 37s2-bounds.cpp:
:In file included from 5../src/s2/base/logging.h:
:In file included from 21./s2-options.h:
:In file included from 7/usr/local/clang/include/absl/log/check.h:
:In file included from 37./s2/s2boolean_operation.h:
:In file included from 26/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2builder.h:
:36/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 455../src/s2/mutable_s2shape_index.h::130::
 In file included from /usr/local/clang/include/absl/container/btree_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70  :
455In file included from  | /usr/local/clang/include/absl/container/internal/layout.hA:B198S:
LIn file included from _/usr/local/clang/include/absl/strings/str_cat.hL:O116G:
_In file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:T23E:
R/usr/local/clang/include/absl/strings/numbers.hN:A217L:_5D:E Fwarning: I'diagnose_if' is a clang extension [-Wgcc-compat]N
E_M  A217K | E _ C H EACBKS_LO_PI_NSTTERRINNAGL__ENXETEEDR_NM(IdNo_uSbIlZeE)(;

            | |     ^^

/usr/local/clang/include/absl/base/macros.h/usr/local/clang/include/absl/log/internal/check_op.h::251449::1831::  note: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

    251449 |  |     _e_xattetrrni btuetmep_l_a(t(ed icaognnsots ec_hiafr(*_ _abbusill_tnionn_noubljle cMta_kseiCzhee(cOkbOjp,S t0r)i n<g (N ,   \\

            | |                  ^                              ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2-bounds.cpp                     ^:
5:
In file included from ./s2-options.h:7:
In file included from In file included from ./s2/s2boolean_operation.hs2-cell.cpp::268:
:
In file included from In file included from ../src/s2/s2builder.h./s2/s2cell_id.h::3637:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/base/logging.h::3021:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/log/check.h::6637:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/internal/check_impl.h::7021:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/layout.h::456198::
1In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/log/internal/check_op.h23::
450:/usr/local/clang/include/absl/strings/numbers.h25::247 :47note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]450
 |       247  |   x ,   x ,   c o n s t   c h a r *   a b s l _ n o n n u l l ) 
        |                          ^ 
in/usr/local/clang/include/absl/base/nullability.ht:_241t:y22p:e *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  oaubts,l _innotn nbualsle )_ N{o
n      n| u                                              ^l
l
      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2-cell.cppo:n8n:
uIn file included from l./s2/s2cell_id.hl: 37_:
NIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h
:      37| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeChecIn file included from ks2-bounds.cppO:p5S:
tIn file included from r./s2-options.hi:n7g:
(In file included from  ./s2/s2boolean_operation.h : 26\:

In file included from       ../src/s2/s2builder.h| :                              ^36
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.h::30241:
:In file included from 22/usr/local/clang/include/absl/container/btree_map.h:: 66:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree.h
:70:
  In file included from 241/usr/local/clang/include/absl/container/internal/layout.h | :#198d:
eIn file included from f/usr/local/clang/include/absl/strings/str_cat.hi:n116e:
 In file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hb:s23l:
_/usr/local/clang/include/absl/strings/numbers.hn:o303n:n60u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nonn  u303l | li
n      l| i                     ^n
e size_t FastHexToIn file included from Bs2-cell.cppu:f8f:
eIn file included from r./s2/s2cell_id.hZ:e37r:
oIn file included from P../src/s2/base/logging.ha:d211:
6In file included from (/usr/local/clang/include/absl/log/check.hu:i37n:
tIn file included from 6/usr/local/clang/include/absl/log/internal/check_impl.h4:_21t:
 /usr/local/clang/include/absl/log/internal/check_op.hv:a458l:,1 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* /usr/local/clang/include/absl/log/internal/check_op.ha:b450s:l25_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
ul  l450  | o u t )   { 
x      ,|                                                             ^x
, c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb)s
l      _| n                        ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MaIn file included from ks2-bounds.cppe:C5h:
eIn file included from c./s2-options.hk:O7p:
SIn file included from t./s2/s2boolean_operation.hr:i26n:
gIn file included from (../src/s2/s2builder.h : 36 :
\In file included from 
../src/s2/mutable_s2shape_index.h      :| 30                              ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66241:
:In file included from 22/usr/local/clang/include/absl/container/internal/btree.h:: 70:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/layout.h
:198:
  In file included from 241/usr/local/clang/include/absl/strings/str_cat.h | :#116d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/stringify_sink.hi:n23e:
 /usr/local/clang/include/absl/strings/numbers.ha:b330s:l41_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   _330N | o n n u l l 
        |                       ^ 
                    iIn file included from ns2-cell.cppt:_8t:
yIn file included from p./s2/s2cell_id.he:*37 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :o21u:
t/usr/local/clang/include/absl/log/internal/check_op.h): 459{:
1      :|                                          ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241450::2225::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

    241450 |  | # d e f i n ex ,a bxs,l _cnoonnsntu lclh a_rN*o nanbuslll_
n      o| n                     ^n
ull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from In file included from s2-cell.cpp/usr/local/clang/include/absl/container/btree_map.h::866:
:
In file included from In file included from ./s2/s2cell_id.h/usr/local/clang/include/absl/container/internal/btree.h::3770:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/internal/layout.h::21198:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/str_cat.h::37116:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2123:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/numbers.h::460335::152::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    460335 |  | A B S L _ L O G _ I N T E R N A L _ D E F I N E _ M A K E _ C H E C K _ O Pa_bSsTlR:I:NiGn_tE1X2T8E*R Na(bcsoln_snto ncnhualrl*  oaubts)l _{n
o      n| n                                                   ^u
ll)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22^:
 note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
449:31  :241  | note: #expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'd
efi  n449e |   a besxlt_enronn ntuelmlp l_aNtoen ncuolnls
t       | c                     ^h
ar* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2-bounds.cppl: 5_:
NIn file included from o./s2-options.hn:n7u:
lIn file included from l./s2/s2boolean_operation.h
:      26| :
                     ^In file included from 
../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:In file included from 30s2-cell.cpp:
:In file included from 8/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66./s2/s2cell_id.h:
:In file included from 37/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:/usr/local/clang/include/absl/log/internal/check_op.h23::
460:/usr/local/clang/include/absl/strings/numbers.h66::340 :53warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | AB  S340L | _ L O G _ I N T E R N A L _ D E F I N E _ M A K E _ C H E C K _ O P _ S T RaIbNsGl_:E:XuTiEnRtN1(2c8o*n satb sclh_anro*n naublsll _onuotn)n u{l
l      )| ;                                                    ^

      |                                                                  ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2-bounds.cpp
:5:
In file included from ./s2-options.h:In file included from 7s2-cell.cpp:
:In file included from 8./s2/s2boolean_operation.h:
:In file included from 26./s2/s2cell_id.h:
:In file included from 37../src/s2/s2builder.h:
:In file included from 36../src/s2/base/logging.h:
:In file included from 21../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/container/internal/btree.h:
:/usr/local/clang/include/absl/log/internal/check_op.h70:460:
:In file included from 1/usr/local/clang/include/absl/container/internal/layout.h:: 198:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/str_cat.h
:116:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h460: | 23A:
B/usr/local/clang/include/absl/strings/numbers.hS:L346_:L44O:G _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN  A346L | _ D E F I N E _ M A K E _ C H E C K _ O P _ S T R I N G _ E X T E RiNn(tc_otnyspte *c haabrs*l _anbosnln_unloln nouultl)) ;{

            | | ^                                           ^

/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h450::24125::22 : note: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'expanded from macro 'absl_nonnull'

    450241 |  |  # d e f i nxe,  axb,s lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2-bounds.cpp
:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.hs2-cell.cpp::1988:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h./s2/s2cell_id.h::11637:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/base/logging.h::2321:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/log/check.h::35137::
55In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:461:1:   351warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      461  |  A B S L _ L O G _ I N T E R N A L _ D E F I N E _ M A K E _ C H E CaKb_sOlP:_:SiTnRtI1N2G8_*E XaTbEsRlN_(n
o      n| n^u
ll/usr/local/clang/include/absl/log/internal/check_op.h :o449u:t31):  {note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      
|                                                       ^
  449 |   e/usr/local/clang/include/absl/base/nullability.hx:t241e:r22n:  tnote: eexpanded from macro 'absl_nonnull'm
pl  a241t | e# dceofnisnte  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-cell-union.cpp -o s2-cell-union.o
e absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRuIlNlG
_      E| X                     ^T
ERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from In file included from s2-cell.cpp../src/s2/s2builder.h::836:
:
In file included from In file included from ./s2/s2cell_id.h../src/s2/mutable_s2shape_index.h::3730:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/btree_map.h::2166:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/btree.h::3770:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/layout.h::21198:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/str_cat.h::465116::
1In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/strings/numbers.h:356:56  :465  | warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_L  O356G | _ I N T E R N A L _ D E F I N E _ M A K E _ C H E C K _ OP _ S T R I N G _ E X T EaRbNs(lc:o:nusitn tv1o2i8d**  aabbssll__nnoonnnnuullll )o;u
t      )|  ^{

      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullablIn file included from es2-cell.cpp :_8N:
uIn file included from l./s2/s2cell_id.hl:a37b:
lIn file included from e../src/s2/base/logging.h
:      21| :
                      ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2-bounds.cpps2-cell.cpp::58:
:
In file included from In file included from ./s2-options.h./s2/s2cell_id.h::737:
:
In file included from In file included from ./s2/s2boolean_operation.h../src/s2/base/logging.h::2621:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/log/check.h::3637:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/check_impl.h::3021:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::50566::
1In file included from :/usr/local/clang/include/absl/container/internal/btree.h :70warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/log/internal/check_op.h198::
489:/usr/local/clang/include/absl/strings/str_cat.h47::431 :15note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |      431  |     ccoonnsstt  Tc1h&a rv*1 ,a bcsoln_sntu lTl2a&b lve2 ,d actoan(s)t  ccohnasrt*  { arbestlu_rnno npniuelcle _e.xdparttae(x)t;)  }{
        |                ^ 
 \
      /usr/local/clang/include/absl/base/nullability.h| :                                              ^257
:23:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nullable'22
:   note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbuslll_anbolnen u_lNlu l_lNaobnlneu
l      l| 
                      ^      
|                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2-bounds.cppi:n5e:
 In file included from a./s2-options.hb:s7l:
_In file included from n./s2/s2boolean_operation.hu:26l:
lIn file included from a../src/s2/s2builder.hb:l36e:
 In file included from _../src/s2/mutable_s2shape_index.hN:u30l:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.hb:l66e:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                      ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :s2-cell.cpp635::836:
:In file included from  ./s2/s2cell_id.h:warning: 37:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h  :63537 | :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hl:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :v512o:i17d:  Swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
App  e512n | d ( s t dc:o:nssttr icnhga*r *a basbls_ln_onnunlullalb)l e{ }s
1      ,|                                     ^c
onst/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  sa2b,s
l      _| n                ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:5:
In file included from In file included from s2-cell.cpp./s2-options.h::87:
:
In file included from In file included from ./s2/s2cell_id.h./s2/s2boolean_operation.h::3726:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2builder.h::2136:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/mutable_s2shape_index.h::3730:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/btree_map.h::2166:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h512::7047:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]198
:
/usr/local/clang/include/absl/strings/str_cat.h:  636512: | 29 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst   636c | hvaori*d  aSbtslr_Anpuplelnadb(lset ds:1:,s tcroinnsgt*  cahbasrl*_ naobnsnlu_lnlu ldleasbtl,e  cso2n,s
t       | A                                              ^l
ph/usr/local/clang/include/absl/base/nullability.ha:N257u:m23&:  anote: )expanded from macro 'absl_nullable';

      |                               ^257
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien e_ Naublslla_bnloen
n      u| l                      ^l
 _NonnuIn file included from ls2-cell.cppl:
8      :
| In file included from                      ^./s2/s2cell_id.h
:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |    In file included from  s2-bounds.cppc:o5n:
sIn file included from t./s2-options.h :c7h:
aIn file included from r./s2/s2boolean_operation.h*: 26a:
bIn file included from s../src/s2/s2builder.hl:_36n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.he:x66p:
rIn file included from t/usr/local/clang/include/absl/container/internal/btree.he:x70t:
)In file included from ;/usr/local/clang/include/absl/container/internal/layout.h
:      198| :
                ^
/usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/base/nullability.h637::24129::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 637# | dveofiidn eS tarbAsplp_ennodn(nsutldl: :_sNtorninnugl*l 
a      b| s                     ^l
_nonnull dest, coIn file included from ns2-cell.cpps:t8 :
AIn file included from l./s2/s2cell_id.hp:h37a:
NIn file included from u../src/s2/base/logging.hm:&21 :
aIn file included from ,/usr/local/clang/include/absl/log/check.h
:      37| :
                            ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/log/internal/check_op.h::22514:: 13:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  241 |   #514d | ecfoinnset  acbhsalr_*n oanbnsull_ln u_lNloanbnluel lC
h      e| c                     ^k
strcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2-bounds.cpp:: 5:
note: In file included from expanded from macro 'absl_nullable'./s2-options.h
:7:
  In file included from 257./s2/s2boolean_operation.h | :#26d:
eIn file included from f../src/s2/s2builder.hi:n36e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hl:e70 :
_In file included from N/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
a/usr/local/clang/include/absl/strings/str_cat.hb:l639e:
29      :|                        ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2-cell.cpp:  8639:
 | In file included from v./s2/s2cell_id.ho:i37d:
 In file included from S../src/s2/base/logging.ht:r21A:
pIn file included from p/usr/local/clang/include/absl/log/check.he:n37d:
(In file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:d21::
:/usr/local/clang/include/absl/log/internal/check_op.hs:t515r:i17n:g *warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _515n | o n n u lclo ndsets tc,h acro*n satb sAll_pnhualNluamb&l ea ,s
1      ,|                              ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea bss2l,_
n      o| n                ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257_:N23o: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-constructors-formatters.cpp -o s2-constructors-formatters.o
this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:7:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2-cell.cpp::1208::
9In file included from :./s2/s2cell_id.h :43note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
../src/s2/s1angle.h:28:
In file included from   ../src/s2/s2point.h120: | 27#:
dIn file included from e../src/s2/s2coder.hf:i23n:
e /usr/local/clang/include/absl/status/status.hA:B1031S:L42_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL_ X1031( | Fiunnlci,n eC aclolneset,  sKtQautauls,_ iVnQtuearln,a lK:V:aSltuaet,u sVRVeapl*u ea,b sTla_inlo,n n.u.l.l)  S\t
a      t| u        ^s
::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:8:
In file included from ./s2/s2cell_id.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::43144:
:In file included from 3../src/s2/s1angle.h:: 28:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h  :14423 | :
 /usr/local/clang/include/absl/status/status.h :A1038B:S33L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN A1038L | _ X ( i nsstearttu_so_ri_natsesringanl,: :iSntsaetruts_Roerp_*a sasbisgln__niomnpnlu,l lc ornespt)& ,{ 
c      o| n                                ^s
t&,/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^22
: note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hexpanded from macro 'absl_nonnull':
133:52  :241  | note: #expanded from macro 'ABSL_INTERNAL_X'd
efin  e133  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_imIn file included from ps2-cell.cppl:,8 :
cIn file included from o./s2/s2cell_id.hn:s43t:
&In file included from ,../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht:&27,:

In file included from       ../src/s2/s2coder.h| :  ^23
:
/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::1063135::1316::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

   1063135 |  | c o n s t   c h a r *t haibss)l)_)n oAnBnSuLl_lA TSTtRaItBuUsTMEe_sLsIaFgEeTAIsMCES_tBrO(U
N      D|              ^{
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u               ^l
l /usr/local/clang/include/absl/container/internal/common.h_:N31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here

      |                      ^   
31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45In file included from :
s2-cell.cpp/usr/local/clang/include/absl/container/internal/raw_hash_map.h::9189:
:In file included from 3./s2/s2cell.h:: 28:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]../src/s2/s1chord_angle.h
:31:
In file included from ../src/s2/s2pointutil.h:27:
  189../src/s2/util/math/matrix3x3.h | : 276 :A5B:S Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
NTERN  A276L | _ X ( i nSs2e_rCtH_EoCrK__aNsEs(idgent,,  iVnTsyepret(_0o)r)_ a<s<s i"g nC_ainm'ptl ,i ncvoenrsste&.,  D&e&t,e rfmailnsaen,t
       =|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~0
.";  
190       | |      ^ 
    ../src/s2/base/logging.h : 37 : 21 :   note:  expanded from macro 'S2_CHECK_NE' 
      37t | r#udee,f i.nfei rSs2t_,C HcEoCnKs_tN_Ei tCeHrEaCtKo_rN EA
B      S| L                    ^_
IN/usr/local/clang/include/absl/log/check.hT:E120R:N3A:L _note: Cexpanded from macro 'CHECK_NE'O
MMA  )120; | 
        | A                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~B
SL_/usr/local/clang/include/absl/container/internal/raw_hash_map.hL:O135G:_11I:N Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'R
NAL  _135C | H E C K _ N E _ I M PtLh(i(sv)a)l)1 )A,B S#Lv_aAlT1T,R I(BvUaTlE2_)L,I F#EvTaIlM2E)_
B      O| U  ^N
D /usr/local/clang/include/absl/log/internal/check_impl.h{: 51 : 3 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
       51  |      A B S L _ L O G _ I N T E R N\A
L      _| C          ^~~~H
ECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   AIn file included from Bs2-cell.cppS:L9_:
IIn file included from N./s2/s2cell.hT:E28R:
NIn file included from A../src/s2/s1chord_angle.hL:_31X:
(In file included from i../src/s2/s2pointutil.hn:s27e:
r../src/s2/util/math/matrix3x3.ht:_276o:r5_:a swarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
gn,../src/s2/base/logging.h :i37n:s21e:r tnote: _expanded from macro 'S2_CHECK_NE'o
r_a   s37s | i#gdne_fiimnpel ,S 2c_oCnHsEtC&K,_ N&E& ,C HtErCuKe_,N
E      
|         ^| 
                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:/usr/local/clang/include/absl/log/check.h133::12052::3 : note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'CHECK_NE'

    120133 |  |     A B S L _ L O G _AIBNSTLE_RINNATLE_RCNHAELC_KA_TNTER_IIBMUPTLE(_(CvAaPlT1U)R,E D#_vBaYl(1t,h i(sv)a)l,2 ) ,   # v a l 2 ) 
        |    ^ 
  /usr/local/clang/include/absl/log/internal/check_impl.h : 51 : 3 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
 \
         51|  |                                                    ^ 
 A/usr/local/clang/include/absl/container/internal/common.hB:S31L:_9L:O Gnote: _macro 'ABSL_INTERNAL_IF_true' defined hereI
NTE   R31N | A#Ld_eCfHiEnCeK _AOBPS(LC_hIeNcTkE_RNNEA,L _!I=F,_ tvraule1(,i fv_asla1t_itsefxite,d ,v a.l.2.,)  viafl_2s_atteixstf)i
e      d| 
  ^      
|         ^/usr/local/clang/include/absl/log/internal/check_op.h
:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   AIn file included from Bs2-bounds.cppS:L5_:
LIn file included from O./s2-options.hG:_9I:
NIn file included from T./s2/s2builderutil_s2polygon_layer.hE:R48N:
AIn file included from L../src/s2/s2polygon.h_:C29H:
EIn file included from C/usr/local/clang/include/absl/container/flat_hash_map.hK:(45::
:/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b191s:l3::: iwarning: m'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]p
licit  _191c | a s tA<BcSoLn_sItN TcEhRaNrA*L _aXb(siln_sneorntn_uolrl_>a(s s i g n ,\ 
i      n| s                                                            ^e
rt/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n_  i241m | p#ld,e fcionnes ta&b,s l&_&n,o ntnruulel, 
_      N| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nul  l192
 |        |                       ^ 
               false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-bounds.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
693 warnings generated.
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2-cell-union.cpp::4962::
9In file included from :./s2/s2cell_id.h :32note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
/usr/local/clang/include/absl/hash/hash.h:89:
  In file included from 496/usr/local/clang/include/absl/hash/internal/hash.h | :#79d:
eIn file included from f/usr/local/clang/include/absl/base/internal/endian.hi:n26e:
 A/usr/local/clang/include/absl/base/internal/unaligned_access.hB:S39L:_45I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_X(Fun   c39, |  iCnallilneee ,u iKnQtu1a6l_,t  MUQnuaalli,g nKeVdaLlouaed,1 6M(Vcaolnuset,  v.o.i.d)*   a b s l\_
n      o| n        ^n
ull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   In file included from As2-cell-union.cppB:S2L:
_In file included from I./s2/s2cell_id.hN:T32E:
RIn file included from N/usr/local/clang/include/absl/hash/hash.hA:L89_:
XIn file included from (/usr/local/clang/include/absl/hash/internal/hash.hi:n79s:
eIn file included from r/usr/local/clang/include/absl/base/internal/endian.ht:_26o:
r/usr/local/clang/include/absl/base/internal/unaligned_access.h_:a45s:s45i:g nwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
inse   r45t | _ionrl_ianses iuginn_ti3m2p_lt,  Ucnoanlsitg n&e,d L&o&a,d 3f2a(lcsoen,s
t       | v  ^o
id/usr/local/clang/include/absl/container/internal/btree_container.h*: 509a:b52s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l509l |   p )   { 
        |                                              ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | A#TdTeRfIiBnUeT Ea_bCsAlP_TnUoRnEnDu_lBlY (_tNhoinsn)u)l,l 
        |                       ^ 
                   \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfieIn file included from ds2-cell-union.cpp,: 2.:
.In file included from ../s2/s2cell_id.h): 32_:
_In file included from V/usr/local/clang/include/absl/hash/hash.hA:_89A:
RIn file included from G/usr/local/clang/include/absl/hash/internal/hash.hS:_79_:

In file included from       /usr/local/clang/include/absl/base/internal/endian.h| :        ^26
:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2-cell.cpp   :5112 | :
iIn file included from n./geography.hl:i7n:
eIn file included from  ./s2geography.hu:i4n:
tIn file included from 6./s2geography/accessors-geog.h4:_4t:
 In file included from U../src/s2/s2convex_hull_query.hn:a27l:
iIn file included from g../src/s2/s2loop.hn:e34d:
LIn file included from o../src/s2/mutable_s2shape_index.ha:d306:
4In file included from (/usr/local/clang/include/absl/container/btree_map.hc:o67n:
s/usr/local/clang/include/absl/container/internal/btree_container.ht: 531v:o3i:d *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl_  n531o | n n uAlBlS Lp_)I N{T
E      R| N                                            ^A
L_/usr/local/clang/include/absl/base/nullability.hX:(241i:n22s:e rnote: texpanded from macro 'absl_nonnull'_
or  _241a | s#sdiegfni,n ei nasbesrlt__noorn_nauslsli g_nN_oinmnpull,l 
c      o| n                     ^s
t &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTIn file included from Us2-cell-union.cppR:E2D:
_In file included from B./s2/s2cell_id.hY:(32t:
hIn file included from i/usr/local/clang/include/absl/hash/hash.hs:)89):
)In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h : 26 :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h : 57 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        57\ | 
i      n| l                                                   ^i
ne/usr/local/clang/include/absl/container/internal/common.h :v32o:i9d:  Unote: nmacro 'ABSL_INTERNAL_IF_false' defined herea
lig   n32e | d#Sdteofrien1e6 (AvBoSiLd_*I NaTbEsRlN_AnLo_nInFu_lfla lps,e (uiifn_ts1a6t_its fvi)e d{,
       .| .                                   ^.
) /usr/local/clang/include/absl/base/nullability.h_:_241V:A22_:A Rnote: Gexpanded from macro 'absl_nonnull'S
__  
241       | | #        ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |  In file included from  s2-cell-union.cpp : 2 :
 In file included from  ./s2/s2cell_id.h : 32 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h :t79r:
uIn file included from e/usr/local/clang/include/absl/base/internal/endian.h):;26
:
      | /usr/local/clang/include/absl/base/internal/unaligned_access.h                      ^:
61:36/usr/local/clang/include/absl/container/internal/btree_container.h:: 496:warning: 9type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: macro 'ABSL_INTERNAL_X' defined here   
61 | in  l496i | n#ed evfoiinde  UAnBaSlLi_gInNeTdESRtNoArLe_3X2((Fvuonicd,*  Caablslle_en,o nKnQuulall ,p ,M Quuianlt,3 2K_Vta lvu)e ,{ 
M      V| a                                   ^l
ue/usr/local/clang/include/absl/base/nullability.h,: 241.:.22.:)  note:  expanded from macro 'absl_nonnull' 
    \241
 |       #| d        ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | /usr/local/clang/include/absl/container/internal/btree_container.hi:n533l:i3n:e  warning: vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
id U  n533a | l i gAnBeSdLS_tIoNrTeE6R4N(AvLo_iXd(*i nasbesrlt__noorn_nauslsli gpn,,  uiinnste6r4t__to rv_)a s{s
i      g| n                                   ^_
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 &  ,241  | &#&d,e ffianles ea,b
s      l| _  ^n
on/usr/local/clang/include/absl/container/internal/btree_container.hn:u509l:l52 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l509
 |        |                       ^ 
       ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint1In file included from 6s2-cell.cpp_:t12 :
LIn file included from o./geography.ha:d71:
6In file included from (./s2geography.hc:o4n:
sIn file included from t./s2geography/accessors-geog.h :v4o:
iIn file included from d../src/s2/s2convex_hull_query.h*: 27a:
bIn file included from s../src/s2/s2loop.hl:_34n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hp:)67 :
{/usr/local/clang/include/absl/container/internal/btree_container.h
:      538| :                                   ^23
: warning: /usr/local/clang/include/absl/base/nullability.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
:22:   538note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _tnrounen)u;l
l       | _                      ^N
on/usr/local/clang/include/absl/container/internal/btree_container.hn:u496l:l9
:       | note:                      ^macro 'ABSL_INTERNAL_X' defined here

  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KIn file included from Vs2-cell-union.cppa:l2u:
eIn file included from ,./s2/s2cell_id.h :M32V:
aIn file included from l/usr/local/clang/include/absl/hash/hash.hu:e89,:
 In file included from ./usr/local/clang/include/absl/hash/internal/hash.h.:.79):
 /usr/local/clang/include/absl/base/internal/endian.h : 164 : 27\:
       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_orIn file included from _s2-cell-union.cppa:s2s:
iIn file included from g./s2/s2cell_id.hn:_32i:
mIn file included from p/usr/local/clang/include/absl/hash/hash.hl:,89 :
cIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:s79t:
 /usr/local/clang/include/absl/base/internal/endian.h&:,168 :&36&:,  warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue,  
168       | | i  ^n
li/usr/local/clang/include/absl/container/internal/btree_container.hn:e509 :u52i:n tnote: 3expanded from macro 'ABSL_INTERNAL_X'2
_t   L509o | a d 3 2 ( c o n s t  AvBoSiLd_*I NaTbEsRlN_AnLo_nAnTuTlRlI BpU)T E{_
C      A| P                                   ^T
UR/usr/local/clang/include/absl/base/nullability.hE:D241_:B22Y:( tnote: hexpanded from macro 'absl_nonnull'i
s)  )241, |  # d e f i n e   a b s l _ n o n n u l l   _ N o\n
n      u| l                                                   ^l

      | /usr/local/clang/include/absl/container/internal/common.h                     ^:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfIn file included from is2-cell-union.cppe:d2,:
 In file included from ../s2/s2cell_id.h.:.32):
 In file included from i/usr/local/clang/include/absl/hash/hash.hf:_89s:
aIn file included from t/usr/local/clang/include/absl/hash/internal/hash.hi:s79f:
i/usr/local/clang/include/absl/base/internal/endian.he:d172
:      27| :        ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline vIn file included from os2-cell.cppi:d12 :
In file included from S./geography.ht:o7r:
eIn file included from 3./s2geography.h2:(4v:
oIn file included from i./s2geography/accessors-geog.hd:*4 :
aIn file included from b../src/s2/s2convex_hull_query.hs:l27_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :p30,:
 In file included from u/usr/local/clang/include/absl/container/btree_map.hi:n67t:
3/usr/local/clang/include/absl/container/internal/btree_container.h2:_537t: 3v:)  warning: {'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                           ^
  /usr/local/clang/include/absl/base/nullability.h537: | 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(ei nasbesrlt__noorn_nauslsli g_nN,o ninnuslelr
t      _| o                     ^r
_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |               In file included from  s2-cell-union.cpp : 2 :
tIn file included from r./s2/s2cell_id.hu:e32):
;In file included from 
/usr/local/clang/include/absl/hash/hash.h      :| 89                  ~~~~~:

In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79/usr/local/clang/include/absl/container/internal/btree_container.h:
:509/usr/local/clang/include/absl/base/internal/endian.h::47176:: 36:note:  expanded from macro 'ABSL_INTERNAL_X'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  509   | 176  |  i n l i n e   u iAnBtS6L4__ItN TLEoRaNdA6L4_(AcToTnRsItB UvToEi_dC*A PaTbUsRlE_Dn_oBnYn(utlhli sp))) ,{ 
        |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f\i
n      e|                                                ^~~~a
bsl_nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l537l: 3_:N owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl:
511      :| 52                     ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BYIn file included from (s2-cell-union.cppt:h2i:
sIn file included from )./s2/s2cell_id.h):)32 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 180 : 27 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     \180
 |       i| n                                                   ^l
in/usr/local/clang/include/absl/container/internal/common.he: 31v:o9i:d  note: Smacro 'ABSL_INTERNAL_IF_true' defined heret
ore   6314 | (#vdoeifdi*n ea bAsBlS_Ln_oInNnTuElRlN ApL,_ IuFi_nttr6u4e_(ti fv_)s a{t
i      s| f                          ^i
ed/usr/local/clang/include/absl/base/nullability.h,: 241.:.22.:)  note: iexpanded from macro 'absl_nonnull'f
_s  a241t | i#sdfeifeidn
e       | a        ^b
sl_nonnull _In file included from Ns2-cell.cppo:n12n:
uIn file included from l./geography.hl:
7      :
| In file included from                      ^./s2geography.h
:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: In file included from warning: s2-cell.cpptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
12:
In file included from ./geography.h:  7250:
 | In file included from i./s2geography.hn:l4i:
nIn file included from e./s2geography/accessors-geog.h :u4i:
nIn file included from t../src/s2/s2convex_hull_query.h1:627_:
tIn file included from  ../src/s2/s2loop.hL:o34a:
dIn file included from 1../src/s2/mutable_s2shape_index.h6:(30c:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hs:t67 :
v/usr/local/clang/include/absl/container/internal/btree_container.ho:i543d:*23 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_no  n543n | u l l   p )   { 
        |                                     ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 :t22r:u enote: )expanded from macro 'absl_nonnull';

      |                         ^241
 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e496f:i9n:e  note: amacro 'ABSL_INTERNAL_X' defined hereb
sl_  n496o | n#nduelfli n_eN oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)In file included from  s2-cell-union.cpp : 2 :
 In file included from \./s2/s2cell_id.h
:      32| :
        ^In file included from 
/usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_In file included from as2-cell-union.cpps:s2i:
gIn file included from n./s2/s2cell_id.h,: 32i:
nIn file included from s/usr/local/clang/include/absl/hash/hash.he:r89t:
_In file included from o/usr/local/clang/include/absl/hash/internal/hash.hr:_79a:
s/usr/local/clang/include/absl/base/internal/endian.hs:i258g:n36_:i mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, &  &258, |  icnolnisnte  &u,i nfta3l2s_et, 
L      o| a  ^d
32/usr/local/clang/include/absl/container/internal/btree_container.h(:c509o:n52s:t  note: vexpanded from macro 'ABSL_INTERNAL_X'o
id*   509a | b s l _ n o n n u l lA BpS)L _{I
N      T| E                                   ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241A:T22:T Rnote: Iexpanded from macro 'absl_nonnull'B
UT  E241_ | C#AdPeTfUiRnEeD _aBbYs(lt_hniosn)n)u,l l   _ N o n n u l l 
        |                       ^ 
         \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_In file included from fs2-cell-union.cppa:l2s:
eIn file included from (./s2/s2cell_id.hi:f32_:
sIn file included from a/usr/local/clang/include/absl/hash/hash.ht:i89s:
fIn file included from i/usr/local/clang/include/absl/hash/internal/hash.he:d79,:
 /usr/local/clang/include/absl/base/internal/endian.h.:.262.:)27 :_ _warning: Vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
_AR  G262S | _i_n
l      i| n        ^e
 void StorIn file included from es2-cell.cpp3:212(:
vIn file included from o./geography.hi:d7*:
 In file included from a./s2geography.hb:s4l:
_In file included from n./s2geography/accessors-geog.ho:n4n:
uIn file included from l../src/s2/s2convex_hull_query.hl: 27p:
,In file included from  ../src/s2/s2loop.hu:i34n:
tIn file included from 3../src/s2/mutable_s2shape_index.h2:_30t:
 In file included from v/usr/local/clang/include/absl/container/btree_map.h): 67{:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 542                          ^:
3: /usr/local/clang/include/absl/base/nullability.h:warning: 241:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]22
: note: expanded from macro 'absl_nonnull'  
542 |    241  | A#BdSeLf_iInNeT EaRbNsAlL__nXo(ninnuslelr t__Noorn_nauslsli
g      n| ,                     ^ 
insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511In file included from  | s2-cell-union.cpp : 2 :
 In file included from  ./s2/s2cell_id.h : 32 :
 In file included from  /usr/local/clang/include/absl/hash/hash.hA:B89S:
LIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hI:N79T:
E/usr/local/clang/include/absl/base/internal/endian.hR:N266A:L36_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBU  T266E | _iCnAlPiTnUeR EuDi_nBtY6(4t_hti sL)o)a)d 6 4 ( c o n s t   v o i d *   a b s l _ n o n n\u
l      l|                                                     ^p
) /usr/local/clang/include/absl/container/internal/common.h{:
31      :| 9                                   ^:
 note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_true' defined here:
241:22:    31 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_ltlr u_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7In file included from :
s2-cell-union.cppIn file included from :./s2geography.h2::
4In file included from :
./s2/s2cell_id.hIn file included from :./s2geography/accessors-geog.h32::
4In file included from :
/usr/local/clang/include/absl/hash/hash.hIn file included from :../src/s2/s2convex_hull_query.h89::
27In file included from :
/usr/local/clang/include/absl/hash/internal/hash.hIn file included from :../src/s2/s2loop.h79::
34:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :../src/s2/mutable_s2shape_index.h270::3027:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/container/internal/btree_container.h:542:  3270: |  iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
ine v  o542i | d   SAtBoSrLe_6I4N(TvEoRiNdA*L _aXb(siln_sneorntn_uolrl_ aps,s iuginn,t 6i4n_ste rvt)_ o{r
_      a| s                          ^s
ig/usr/local/clang/include/absl/base/nullability.hn:_241i:m22p:l ,note:  expanded from macro 'absl_nonnull'&
&,   241c | o#ndsetf i&n,e  faablssle_,n
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll   543_ | N o n n u l l 
        |                       ^ 
       true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |          In file included from  s2-cell-union.cpp : 2 :
 In file included from  ./s2/s2cell_id.h : 32 :
cIn file included from o/usr/local/clang/include/absl/hash/hash.hn:s89t:
 In file included from &/usr/local/clang/include/absl/hash/internal/hash.h,: 89f:
aIn file included from l/usr/local/clang/include/absl/numeric/int128.hs:e41,:
 t/usr/local/clang/include/absl/types/compare.hr:u78e:,22
:       | warning:                   ~~~~~~~~~~~~~~~~~~~~~'enable_if' is a clang extension [-Wgcc-compat]

  560 |      78  |              _ _ a t t r i b uctoen_s_t(_(ietnearbalteo_ri(fh(inn t=)=  A0B,S L"_OInNlTyE RlNiAtLe_rCaOlM M`A0)`; 
i      s|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
llo/usr/local/clang/include/absl/container/internal/btree_container.hw:e511d:.47":) )note: )expanded from macro 'ABSL_INTERNAL_X' 
{}
        | 511                     ^ | 
          ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValueIn file included from ,s2-cell-union.cpp :.2.:
.In file included from )./s2/s2cell_id.h : 32 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 90 :
 /usr/local/clang/include/absl/strings/string_view.h : 53 : 54 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]\

      |         ^
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_null/usr/local/clang/include/absl/container/internal/btree_container.ha:b621l:e3 :_ Nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
lab  l621e | 
        | A                      ^B
SL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell.cpp:12:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2-constructors-formatters.cpp
:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90In file included from :
s2-cell-union.cpp:2/usr/local/clang/include/absl/strings/string_view.h:
:In file included from 53./s2/s2cell_id.h::5443::
 In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h:27:
In file included from    ../src/s2/s2coder.h53: | 23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67e:
xIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.hr: 29s:
tIn file included from r/usr/local/clang/include/absl/strings/cord.hi:n94g:
_In file included from v/usr/local/clang/include/absl/strings/internal/cordz_info.hi:e31w:
 /usr/local/clang/include/absl/synchronization/mutex.hN:u1260l:l43S:a fwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
tri n1260g | V i e w (bcooonls t( acbhsalr:*: taybpsel__induelnltaibtlye< Tp>): :{t
y      p| e                                                     ^:
:* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | m#edtehfoidn)e( )a
b      s| l                                          ^_
nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e  note: _expanded from macro 'absl_nonnull'N
ul  l241a | b#ldee
f      i| n                      ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:2:
In file included from ./s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:3:
In file included from ./s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:3:
In file included from ./s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 158s2-cell-union.cpp | : 5 :
 In file included from  ./s2/s2cell_union.hV:L29o:
gS/usr/local/clang/include/absl/flags/flag.hi:t110e:*29 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nulla  b110l | ev ovi)d; 
S      e| t              ^F
la/usr/local/clang/include/absl/base/nullability.hg:(257a:b23s:l :note: :expanded from macro 'absl_nullable'F
la  g257< | T#>d*e faibnsel _anbosnln_unlull lfalbalge,  _cNounlslta bTl&e 
v      )|                        ^{

      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:5:
In file included from ./s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_In file included from es2-constructors-formatters.cppm:p6l:
aIn file included from c./s2/s2pointutil.he:_25i:
mIn file included from p../src/s2/s1angle.hl:,28 :
&In file included from &../src/s2/s2point.h,: 25f:
aIn file included from l../src/s2/util/coding/coder.hs:e36):
;In file included from 
../src/s2/base/casts.h      :| 34                                                          ^:

In file included from /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/container/internal/btree_container.h::209596:
:In file included from 9/usr/local/clang/include/absl/log/internal/log_impl.h:: 22note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
/usr/local/clang/include/absl/log/internal/log_message.h:53  :
596 | #/usr/local/clang/include/absl/types/source_location.hd:e113f:i19n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_INT  E113R | N A L _ X ( Fcuonncs,t  Ccahlalre*e ,a bKsQlu_anlo,n nKuVlall ufei,l e._.n.a)m e   =   _ _ b u i l t i n _ F I L E ( ) )  \{

            | |         ^                  ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/container/internal/btree_container.h53::
620/usr/local/clang/include/absl/types/source_location.h::3133:: 25warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  620 |     133A | B S Lc_oInNsTtEeRxNpArL _cXo(ntsrty _cehmaprl*a caeb,s lt_rnyo_nenmupllla cfei_liem_pnla,m e&(&),  cfoanlsste )n;o
e      x| c  ^e
pt/usr/local/clang/include/absl/container/internal/btree_container.h :{611
:      52| :                        ^ 
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.h
:241:22  :611  | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(this)),     In file included from  s2-constructors-formatters.cpp : 6 :
 In file included from  ./s2/s2pointutil.h : 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h\:
36      :
| In file included from                                                    ^../src/s2/base/casts.h
:34:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/log.h32::2099:
:In file included from  /usr/local/clang/include/absl/log/internal/log_impl.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here22
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h   :3253 | :
#/usr/local/clang/include/absl/types/source_location.hd:e142f:i25n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL  _142I | N T EcRoNnAsLt_eIxFp_rf aclosnes(ti fc_hsaart*i safbiseld_,n o.n.n.u)l l_ _fVuAn_cAtRiGoSn___n
a      m| e        ^(
) const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2-cell-union.cppn:u7l:
lIn file included from 
./s2/s2shape_index_buffered_region.h      :| 29                     ^:

In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  In file included from 621s2-constructors-formatters.cpp | : 6 :
AIn file included from B./s2/s2pointutil.hS:L25_:
IIn file included from N../src/s2/s1angle.hT:E28R:
NIn file included from A../src/s2/s2point.hL:_25X:
(In file included from t../src/s2/util/coding/coder.hr:y36_:
eIn file included from m../src/s2/base/casts.hp:l34a:
cIn file included from e/usr/local/clang/include/absl/log/log.h,: 209t:
rIn file included from y/usr/local/clang/include/absl/log/internal/log_impl.h_:e22m:
pIn file included from l/usr/local/clang/include/absl/log/internal/log_message.ha:c53e:
_/usr/local/clang/include/absl/types/source_location.hi:m150p:l40,:  &warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 tr  u150e | ) ; 
        |                                                           ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 596 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
      596  |  # d e f icnoen sAtB ScLh_aIrN*T EaRbNsAlL__nXo(nFnuunlcl,  fCiallel_enea,m eK)Q
u      a| l                                       ^,
 K/usr/local/clang/include/absl/base/nullability.hV:a241l:u22e:,  note: .expanded from macro 'absl_nonnull'.
.)   241  |  # d e f i n e   a b s l _ n o n n u l l\ 
_      N| o        ^n
null
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnul/usr/local/clang/include/absl/container/internal/btree_container.hl: 621f:i3l:e _warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
me_   621= |   " "A;B
S      L| _              ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Xnote: (expanded from macro 'absl_nonnull't
ry  _241e | m#pdleafcien,e  tarbys_le_mnpolnancuel_li m_pNlo,n n&u&l,l 
t      r| u                     ^e
);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAIn file included from Ls2-constructors-formatters.cpp_:A6T:
TIn file included from R./s2/s2pointutil.hI:B25U:
TIn file included from E../src/s2/s1angle.h_:C28A:
PIn file included from T../src/s2/s2point.hU:R25E:
DIn file included from _../src/s2/util/coding/coder.hB:Y36(:
tIn file included from h../src/s2/base/casts.hi:s34):
)In file included from ,/usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 71 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        71  |     \L
o      g| M                                              ^~~~e
ssage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(co/usr/local/clang/include/absl/container/internal/btree_container.hn:s622t: 3c:h awarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*
 abs  l622_ | n o nAnBuSlLl_ IfNiTlEeR,N AiLn_tX (ltirnye_,e
m      p| l                         ^a
ce/usr/local/clang/include/absl/base/nullability.h,: 241t:r22y:_ enote: mexpanded from macro 'absl_nonnull'p
la  c241e | _#hdienfti_niem palb,s lc_onnosntn u&l,l  f_aNlosnen,u
l      l| 
  ^      
|                      ^/usr/local/clang/include/absl/container/internal/btree_container.h
:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTIn file included from Es2-constructors-formatters.cppR:N6A:
LIn file included from _./s2/s2pointutil.hA:T25T:
RIn file included from I../src/s2/s1angle.hB:U28T:
EIn file included from _../src/s2/s2point.hC:A25P:
TIn file included from U../src/s2/util/coding/coder.hR:E36D:
_In file included from B../src/s2/base/casts.hY:(34t:
hIn file included from i/usr/local/clang/include/absl/log/log.hs:)209):
,In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 80 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       80  |      L o g M e\s
s      a| g                                                   ^e
(c/usr/local/clang/include/absl/container/internal/common.ho:n32s:t9 :c hnote: amacro 'ABSL_INTERNAL_IF_false' defined herer
* a   b32s | l#_dneofninnuel lA BfSiLl_eI,N TiEnRtN AlLi_nIeF,_
f      a| l                         ^s
e(/usr/local/clang/include/absl/base/nullability.hi:f241_:s22a:t inote: sexpanded from macro 'absl_nonnull'f
ie  d241, |  #.d.e.f)i n_e_ VaAb_sAlR_GnSo_n_n
u      l| l        ^ 
_Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTUIn file included from Rs2-constructors-formatters.cppE:D6_:
BIn file included from Y./s2/s2pointutil.h(:t25h:
iIn file included from s../src/s2/s1angle.h):)28,:
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 /usr/local/clang/include/absl/log/internal/log_message.h\:
119      :| 41                                                   ^:
 warning: /usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:9:   note: 119macro 'ABSL_INTERNAL_IF_true' defined here | 
  L   o31g | M#edsesfaignee&  ATBoSSLi_nIkNATlEsRoN(AL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAaPTUbRsElD:_:BLYo(gtShiinsk)*) ,a b s l _ n o n n u l l   s i n k ) ; 
        |                                          ^ 
   \/usr/local/clang/include/absl/base/nullability.h
:      241| :                                              ^~~~22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           In file included from As2-constructors-formatters.cppB:S6L:
_In file included from I./s2/s2pointutil.hN:T25E:
RIn file included from N../src/s2/s1angle.hA:L28_:
AIn file included from T../src/s2/s2point.hT:R25I:
BIn file included from U../src/s2/util/coding/coder.hT:E36_:
CIn file included from A../src/s2/base/casts.hP:T34U:
RIn file included from E/usr/local/clang/include/absl/log/log.hD:_209B:
YIn file included from (/usr/local/clang/include/absl/log/internal/log_impl.ht:h22i:
s/usr/local/clang/include/absl/log/internal/log_message.h):)158,: 32 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      158  |      L o g M e s s a g e &   o\p
e      r| a                                                   ^t
or</usr/local/clang/include/absl/container/internal/common.h<:(32v:o9i:d *note:  macro 'ABSL_INTERNAL_IF_false' defined herea
bsl   _32n | u#ldleafbilnee   AvB)S L{_
I      N| T                               ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L257_:I23F:_ fnote: aexpanded from macro 'absl_nullable'l
se  (257i | f#_dseaftiinsef iaebds,l _.n.u.l)l a_b_lVeA __ANRuGlSl_a_b
l      e| 
        ^      
|                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |   In file included from  s2-constructors-formatters.cpp : 6 :
 In file included from  ./s2/s2pointutil.h : 25A:
BIn file included from S../src/s2/s1angle.hL:_28I:
NIn file included from T../src/s2/s2point.hE:R25N:
AIn file included from L../src/s2/util/coding/coder.h_:A36T:
TIn file included from R../src/s2/base/casts.hI:B34U:
TIn file included from E/usr/local/clang/include/absl/log/log.h_:C209A:
PIn file included from T/usr/local/clang/include/absl/log/internal/log_impl.hU:R22E:
D/usr/local/clang/include/absl/log/internal/log_message.h_:B179Y:(35t:h iwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
),    179  |      L o g M e s s a g e &   o p e r a t o r <\<
(      w| c                                                   ^h
ar/usr/local/clang/include/absl/container/internal/common.h_:t31*: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_true' defined here_
nul   l31a | b#ldee fvi)n;e
       A| B                                  ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N257T:E23R:N Anote: Lexpanded from macro 'absl_nullable'_
IF  _257t | r#udee(fiifn_es aatbisslf_ineudl,l a.b.l.e)  _iNfu_lslaatbilsef
i      e| d                      ^

      |         ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INIn file included from Ts2-constructors-formatters.cppE:R6N:
AIn file included from L./s2/s2pointutil.h_:X25(:
tIn file included from r../src/s2/s1angle.hy:_28e:
mIn file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
p/usr/local/clang/include/absl/base/nullability.h:l241a:c22e:, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-cell-union.cpp:7:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const ch/usr/local/clang/include/absl/container/internal/raw_hash_set.ha:r2692*: 58a:b swarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
nulla b2692l | e   n a m e #c#oInmsptl (T &   v a l u e   A B S L _ I N T E R N\A
L      _| A                               ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Cnote: Aexpanded from macro 'absl_nullable'P
TU  R257E | D#_dBeYf(itnhei sa)b)s
l      _| n                                                         ^~~~u
llable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABIn file included from Ss2-constructors-formatters.cppL:_6I:
NIn file included from T./s2/s2pointutil.hE:R25N:
AIn file included from L../src/s2/s1angle.h_:A28T:
TIn file included from R../src/s2/s2point.hI:B25U:
TIn file included from E../src/s2/util/coding/coder.h_:C36A:
PIn file included from T../src/s2/base/casts.hU:R36E:
DIn file included from _../src/s2/base/logging.hB:Y21(:
tIn file included from h/usr/local/clang/include/absl/log/check.hi:s37):
)In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                                                ^~~~:

/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:6:
In file included from ./s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-predicates.cpp -o s2-predicates.o
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-constructors-formatters.cpp:9:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-cell-union.cpp:10:
In file included from ./geography-operator.h:7:
In file included from ./geography.h:7:
In file included from ./s2geography.h:4:
In file included from ./s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
693 warnings generated.
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-transformers.cpp -o s2-transformers.o
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:2:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-predicates.cpp:5:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c init.cpp -o init.o
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c util.cpp -o util.o
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   frienIn file included from dinit.cpp :v2o:
iIn file included from d/usr/local/clang/include/absl/log/log.h :A209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hF:o20r:
mIn file included from a/usr/local/clang/include/absl/log/absl_vlog_is_on.ht:F63l:
uIn file included from s/usr/local/clang/include/absl/log/internal/vlog_config.hh:(40a:
bs/usr/local/clang/include/absl/strings/string_view.hl::53::C54o:r dwarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl_nonn   u53l | lc ocnosrtde,x
p      r|                                            ^s
tr/usr/local/clang/include/absl/base/nullability.hi:n241g:_22v:i enote: wexpanded from macro 'absl_nonnull' 
Nu  l241l | S#adfeefSitnrei nagbVsile_wn(ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^u
llable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2-transformers.cpp:2:
In file included from    ./s2/s2shape_index_buffered_region.h49: | 23i:
nIn file included from t../src/s2/s1angle.h :R28e:
gIn file included from i../src/s2/s2point.hs:t27e:
rIn file included from A../src/s2/s2coder.hn:d23I:
nIn file included from i/usr/local/clang/include/absl/status/status.ht:i67a:
lIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hz:e29(:
V/usr/local/clang/include/absl/strings/cord.hL:o898g:S27i:t ewarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl  _898n | o n nfurlile nvd) ;c
o      n| s                                    ^t
 Co/usr/local/clang/include/absl/base/nullability.hr:d241z:I22n:f onote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea bGselt_CnoorndnzuIlnlf o_FNoornTneusltli
n      g| (                     ^

      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from ainit.cppb:l2e:
 In file included from _/usr/local/clang/include/absl/log/log.hN:u209l:
lIn file included from a/usr/local/clang/include/absl/log/internal/log_impl.hb:l20e:

In file included from       /usr/local/clang/include/absl/log/absl_vlog_is_on.h| :                      ^63
:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: In file included from warning: init.cpptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
2:
In file included from /usr/local/clang/include/absl/log/log.h:  209927:
 | In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 96 : 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        96  |      f r i e n dC oirndtR elpo*g _aibnstle_rnnualll:a:bRleeg irsetpe)r;A
n      d| I                                          ^n
iti/usr/local/clang/include/absl/base/nullability.ha:l257i:z23e:( Vnote: Lexpanded from macro 'absl_nullable'o
gS  i257t | e#*d eafbisnle_ naobnsnlu_lnlu lvl)a;b
l      e|                                                             ^_
Nul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:
       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnuIn file included from ls2-transformers.cppl: 2_:
NIn file included from o./s2/s2shape_index_buffered_region.hn:n23u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67init.cpp:
:In file included from /usr/local/clang/include/absl/status/internal/status_internal.h2::
29In file included from :
/usr/local/clang/include/absl/log/log.h:/usr/local/clang/include/absl/strings/cord.h209::
935In file included from :/usr/local/clang/include/absl/log/internal/log_impl.h11::20 :
In file included from warning: /usr/local/clang/include/absl/log/absl_vlog_is_on.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]63
:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119  :93515 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cha  r119* |   a bcsoln_snto ncnhualrl*  saebts_ld_antoan(nsuilzle _cto nns)t;  f i/l/e _W;r
i      t| e              ^ 
dat/usr/local/clang/include/absl/base/nullability.ha: 241t:o22 :t hnote: eexpanded from macro 'absl_nonnull' 
re  s241u | l#td
e      f| i          ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _init.cppN:o2n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                     ^:
20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInIn file included from is2-transformers.cppt:i2a:
lIn file included from i./s2/s2shape_index_buffered_region.hz:e23(:
VIn file included from L../src/s2/s1angle.ho:g28S:
iIn file included from t../src/s2/s2point.he:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :v29):
;/usr/local/clang/include/absl/strings/cord.h
:      1012| :                                    ^37
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:  note: 1012expanded from macro 'absl_nonnull' | 
     241  | a#bdself:i:nceo radb_siln_tneornnnaull:l: C_oNrodnznIunlflo
*       | a                     ^b
sl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NIn file included from uinit.cppl:2:
In file included from l/usr/local/clang/include/absl/log/log.ha:b209l:
eIn file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h      :| 20                      ^:

In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | In file included from Vs2-transformers.cppL:o2g:
SIn file included from i./s2/s2shape_index_buffered_region.ht:e23*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23 :
SIn file included from e/usr/local/clang/include/absl/status/status.ht:V67M:
oIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.hu:l29e:
L/usr/local/clang/include/absl/strings/cord.hi:s1017t:H51e:a dwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
rTes t1017O | n l y ( 
v      o| i          ^d
 se/usr/local/clang/include/absl/base/nullability.ht:_257c:o23r:d znote: _expanded from macro 'absl_nullable'i
nf  o257( | c#odredf_iinnet earbnsall_:n:uClolradbzlIen f_oN*u lalbasbll_en
o      n| n                      ^u
ll cordIn file included from zinit.cpp_:i2n:
fIn file included from o/usr/local/clang/include/absl/log/log.h): 209{:

In file included from       /usr/local/clang/include/absl/log/internal/log_impl.h| :                                                  ^20
:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/base/nullability.h::63241:
:/usr/local/clang/include/absl/log/internal/vlog_config.h22::158 :15note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #  d158e | f i n e  VaLbosglS_intoen*n ualbls l__Nnounlnlualbll
e       | v                     ^)
;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:24:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:24:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |        In file included from  init.cpp : 2 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.ht:r22u:
eIn file included from ,/usr/local/clang/include/absl/log/internal/log_message.h :t47r:
uIn file included from e/usr/local/clang/include/absl/log/internal/structured_proto.h,: 27c:
oIn file included from n/usr/local/clang/include/absl/log/internal/proto.hs:t34_:
it/usr/local/clang/include/absl/types/span.he:r212a:t22o:r (warning: htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i
nt)   A212B | S L _uIsNiTnEgR NpAoLi_nCtOeMrM A=) ;T
*       | a                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl_/usr/local/clang/include/absl/container/internal/btree_container.h:n511u:l47l:a bnote: iexpanded from macro 'ABSL_INTERNAL_X'l
ity_  u511n | k n o w n ; 
        |                       ^ 
ABSL/usr/local/clang/include/absl/base/nullability.h_:I289N:T34E:R Nnote: Aexpanded from macro 'absl_nullability_unknown'L
_AT  T289R | I#BdUeTfEi_nCeA PaTbUsRlE_Dn_uBlYl(atbhiilsi)t)y)_ u n k n o w n   _ N u l l _ u n s p e c i f i e\d

            | |                                               ^~~~                                 ^

In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impIn file included from linit.cpp,: 2&:
&In file included from ,/usr/local/clang/include/absl/log/log.h :&209&:
,In file included from  /usr/local/clang/include/absl/log/internal/log_impl.ht:r22u:
eIn file included from ,/usr/local/clang/include/absl/log/internal/log_message.h
:      47| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
/usr/local/clang/include/absl/log/internal/structured_proto.h:27:
  In file included from 591/usr/local/clang/include/absl/log/internal/proto.h | : 34 :
 /usr/local/clang/include/absl/types/span.h : 733 : 31 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
        733f | aclosnes,t ecxopnrs tS_piatne<rTa>t oMra(kheiSnpta)n (ATB*S La_bIsNlT_EnRuNlAlLa_bClOeM MpAt)r; 
A      B| S                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
_AT/usr/local/clang/include/absl/container/internal/btree_container.hT:R509I:B47U:T Enote: _expanded from macro 'ABSL_INTERNAL_X'L
IFET  I509M | E _ B O U N D , 
        | A                              ^B
SL_/usr/local/clang/include/absl/base/nullability.hI:N257T:E23R:N Anote: Lexpanded from macro 'absl_nullable'_
AT  T257R | I#BdUeTfEi_nCeA PaTbUsRlE_Dn_uBlYl(atbhlies )_)N,u l l a b l e 
        |                        ^ 
             \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |         In file included from  init.cpp :A2B:
SIn file included from L/usr/local/clang/include/absl/log/log.h_:I209N:
TIn file included from E/usr/local/clang/include/absl/log/internal/log_impl.hR:N22A:
LIn file included from _/usr/local/clang/include/absl/log/internal/log_message.hA:T47:
TIn file included from R/usr/local/clang/include/absl/log/internal/structured_proto.hI:B27U:
TIn file included from E/usr/local/clang/include/absl/log/internal/proto.h_:C34A:
P/usr/local/clang/include/absl/types/span.hT:U739R:E21D:_ Bwarning: Ytype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
this  )739) | )S p a n < T >   M a k e S p a n ( T *   a b s l _\n
u      l| l                                                   ^a
bl/usr/local/clang/include/absl/container/internal/common.he: 32b:e9g:i nnote:  macro 'ABSL_INTERNAL_IF_false' defined hereA
BSL   _32A | T#TdReIfBiUnTeE _ALBISFLE_TIINMTEE_RBNOAULN_DI,F
_      f| a                    ^l
se(if/usr/local/clang/include/absl/base/nullability.h_:s257a:t23i:s fnote: iexpanded from macro 'absl_nullable'e
d,   257. | .#.d)e f_i_nVeA _aAbRsGlS__n_u
l      l| a        ^b
le _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CIn file included from Ainit.cppP:T2U:
RIn file included from E/usr/local/clang/include/absl/log/log.hD:_209B:
YIn file included from (/usr/local/clang/include/absl/log/internal/log_impl.ht:h22i:
sIn file included from )/usr/local/clang/include/absl/log/internal/log_message.h):,47 :
 In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
 In file included from  /usr/local/clang/include/absl/log/internal/proto.h : 34 :
 /usr/local/clang/include/absl/types/span.h : 794 : 8 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
   \  
794       | |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.hT:*31 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_true' defined heren
ull   a31b | l#ed epftirn eA BASBLS_LA_TITNRTIEBRUNTAEL__LIIFF_EtTrIuMeE(_iBfO_UsNaDt,i ssfiizeed_,t  .s.i.z)e )i fn_oseaxtciespfti e{d

            | |        ^        ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2-transformers.cppi:n2e:
 In file included from a./s2/s2shape_index_buffered_region.hb:s29l:
_In file included from n../src/s2/s2closest_edge_query.hu:l34l:
aIn file included from b../src/s2/s2closest_edge_query_base.hl:e32 :
_In file included from N/usr/local/clang/include/absl/container/btree_set.hu:l66l:
a/usr/local/clang/include/absl/container/internal/btree_container.hb:l592e:
3      :|                        ^warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_aIn file included from sinit.cpps:i2g:
nIn file included from _/usr/local/clang/include/absl/log/log.hh:i209n:
tIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hi:m22p:
lIn file included from ,/usr/local/clang/include/absl/log/internal/log_message.h :&47&:
,In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h&:&27,:
 In file included from t/usr/local/clang/include/absl/log/internal/proto.hr:u34e:
,/usr/local/clang/include/absl/types/span.h
:      799| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~32
: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]593
 |      799  |  S p a n < c o n s t   T >  tMraukee,C ocnosntsStp_aint(eTr*a taobrs(lh_innutl)l aAbBlSeL _bIeNgTiEnR
N      A| L                               ^_
CO/usr/local/clang/include/absl/base/nullability.hM:M257A:)23;:
       | note:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nullable'

  /usr/local/clang/include/absl/container/internal/btree_container.h257: | 509#:d47e:f inote: nexpanded from macro 'ABSL_INTERNAL_X'e
 ab  s509l | _ n u l l a b l e   _ANBuSlLl_aIbNlTeE
R      N| A                      ^L
_ATTRIBUTEIn file included from _init.cppC:A2P:
TIn file included from U/usr/local/clang/include/absl/log/log.hR:E209D:
_In file included from B/usr/local/clang/include/absl/log/internal/log_impl.hY:(22t:
hIn file included from i/usr/local/clang/include/absl/log/internal/log_message.hs:)47):
,In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
 In file included from  /usr/local/clang/include/absl/log/internal/proto.h : 34 :
 /usr/local/clang/include/absl/types/span.h : 801 : 32 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       \
801       | |                                                ^~~~ 
       /usr/local/clang/include/absl/container/internal/btree_container.h : 592 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
T*   a511b | s l _ n u l l a b l eA BeSnLd_)I NnToEeRxNcAeLp_tA T{T
R      I| B                               ^U
TE/usr/local/clang/include/absl/base/nullability.h_:C257A:P23T:U Rnote: Eexpanded from macro 'absl_nullable'D
_B  Y257( | t#hdiesf)i)n)e   a b s l _ n u l l a b l e   _ N u l l a b l e\

            | |                       ^                                                   ^

/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2-transformers.cpp:2:
In file included from ./s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:2:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:40:
In file included from /usr/local/clang/include/absl/flags/marshalling.h:207:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_uns/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c RcppExports.cpp -o RcppExports.o
pecified
      |                                  ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from init.cpp:3:
In file included from ./s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-transformers.cpp:5:
In file included from ./s2-options.h:9:
In file included from ./s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
153 warnings generated.
693 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-geography.cpp -o s2-geography.o
693 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-lnglat.cpp -o s2-lnglat.o
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2-matrix.cpp -o s2-matrix.o
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(FIn file included from us2-lnglat.cppn:c2,:
 In file included from C./s2/s2latlng.ha:l31l:
eIn file included from e../src/s2/r2.h,: 22K:
QIn file included from u../src/s2/util/math/vector.ha:l36,:
 In file included from K../src/s2/base/logging.hV:a21l:
uIn file included from e/usr/local/clang/include/absl/log/check.h,: 37.:
.In file included from ./usr/local/clang/include/absl/log/internal/check_impl.h): 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 47 :
 In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
\In file included from 
/usr/local/clang/include/absl/log/internal/proto.h      :| 34        ^:

/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unk/usr/local/clang/include/absl/container/internal/btree_container.hn:o621w:n3 :_ Nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l_u  n621s | p e cAiBfSiLe_dI
N      T| E                                 ^R
NAL_X(try_empIn file included from ls2-lnglat.cppa:c2e:
,In file included from  ./s2/s2latlng.ht:r31y:
_In file included from e../src/s2/r2.hm:p22l:
aIn file included from c../src/s2/util/math/vector.he:_36i:
mIn file included from p../src/s2/base/logging.hl:,21 :
&In file included from &/usr/local/clang/include/absl/log/check.h,: 37t:
rIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.he:)21;:

In file included from       /usr/local/clang/include/absl/log/internal/check_op.h| :  ^41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/container/internal/btree_container.h::26611:
:In file included from 52/usr/local/clang/include/absl/log/internal/log_message.h:: 47:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/internal/structured_proto.h
:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h  :61134 | :
 /usr/local/clang/include/absl/types/span.h : 213 : 34 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
ABS  L213_ | I N TuEsRiNnAgL _cAoTnTsRtI_BpUoTiEn_tCeArP T=U RcEoDn_sBtY (Tt*h iasb)s)l,_ n u l l a b i l i t y _ u n k n o w n ; 
        |                                   ^ 
 \/usr/local/clang/include/absl/base/nullability.h
:      289| :                                                   ^34
: /usr/local/clang/include/absl/container/internal/common.hnote: :expanded from macro 'absl_nullability_unknown'31
:9:   289note:  | macro 'ABSL_INTERNAL_IF_true' defined here#
def   i31n | e# daebfsiln_en uAlBlSaLb_iIlNiTtEyR_NuAnLk_nIoFw_nt r_uNeu(lilf__usnastpiescfiifeide,d 
.      .| .                                 ^)
 if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...In file included from )s2-lnglat.cpp :i2f:
_In file included from s./s2/s2latlng.ha:t31i:
sIn file included from f../src/s2/r2.hi:e22d:

In file included from       ../src/s2/util/math/vector.h| :        ^36
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.hs2-geography.cpp::263:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h./s2/s2polyline.h::4734:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h../src/s2/s2builder.h::2736:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/proto.h../src/s2/mutable_s2shape_index.h::3430:
:
In file included from /usr/local/clang/include/absl/types/span.h/usr/local/clang/include/absl/container/btree_map.h::73367::
31/usr/local/clang/include/absl/container/internal/btree_container.h:: 628:warning: 3:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  733 | c  o628n | s t eAxBpSrL _SIpNaTnE<RTN>A LM_aXk(etSrpya_ne(mTp*l aacbes,l _tnruyl_leambpllea cpet_rh iAnBtS_Li_mApTlT,R I&B&U,T Et_rLuIeF,E
T      I| M  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E
_BO  U629N | D , 
        |                                ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
co  n257s | t#_dietfeirnaet oarb(shli_nntu)l lAaBbSlLe_ I_NNTuElRlNaAbLl_eC
O      M| M                      ^A
);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIn file included from Is2-lnglat.cppB:U2T:
EIn file included from _./s2/s2latlng.hC:A31P:
TIn file included from U../src/s2/r2.hR:E22D:
_In file included from B../src/s2/util/math/vector.hY:(36t:
hIn file included from i../src/s2/base/logging.hs:)21):
,In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 47 :
 In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h\:
27      :
| In file included from                                               ^~~~/usr/local/clang/include/absl/log/internal/proto.h
:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) /usr/local/clang/include/absl/container/internal/btree_container.hn:o638e:x63c:e pwarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
{
      |                     ^
  638 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :  cnote: oexpanded from macro 'absl_nullable'n
st   257k | e#yd_eafrign<eK >a b&skl _AnBuSlLl_aIbNlTeE R_NNAuLl_lAaTbTlReI
B      U| T                      ^E
_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       thIn file included from is2-lnglat.cpps:)2):
 In file included from A./s2/s2latlng.hB:S31L:
_In file included from A../src/s2/r2.hT:T22R:
IIn file included from B../src/s2/util/math/vector.hU:T36E:
_In file included from L../src/s2/base/logging.hI:F21E:
TIn file included from I/usr/local/clang/include/absl/log/check.hM:E37_:
BIn file included from O/usr/local/clang/include/absl/log/internal/check_impl.hU:N21D:
 In file included from {/usr/local/clang/include/absl/log/internal/check_op.h
:      41| :
      ^~~~In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:3:
In file included from ./s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           In file included from es2-geography.cppn:a4b:
lIn file included from e./s2/s2polygon.h_:i29f:
(In file included from s/usr/local/clang/include/absl/container/flat_hash_map.ht:r45_:
f/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:r202m:a3t:_ iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
erna  l202: | : V aAlBiSdLF_oIrNmTaEtRINmApl<CL._.X.(>i(nfsoerrmta_to)r,_
a      s| s          ^i
gn, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, In file included from cs2-lnglat.cppo:n2s:
tIn file included from _./s2/s2latlng.hi:t32e:
rIn file included from a../src/s2/s1angle.ht:o28r:
 In file included from A../src/s2/s2point.hB:S27L:
_In file included from I../src/s2/s2coder.hN:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.hA:L67_:
CIn file included from O/usr/local/clang/include/absl/status/internal/status_internal.hM:M29A:
)In file included from ;/usr/local/clang/include/absl/strings/cord.h
:      82| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h135::3211:
:In file included from  /usr/local/clang/include/absl/strings/str_format.h:note: 84expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:  11135: |   warning:  'enable_if' is a clang extension [-Wgcc-compat] 
        143  | t h i s ) ) )   A B SeLn_aAbTlTeR_IiBfU(TsEt_rL_IfFoErTmIaMtE__iBnOtUeNrDn a{l : : E n s u r e C o n s t e x p r ( s ) ,   " c o n s t e x\p
r       | t          ^~~~r
ap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), /usr/local/clang/include/absl/container/internal/raw_hash_map.h":b205a:d3 :f owarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]m
at t  r205a | p " )A)B)S
L      _| I                     ^N
TERNAL_X(insert_or_assign, inser/usr/local/clang/include/absl/strings/internal/str_format/bind.ht:_162o:r22_:a swarning: s'enable_if' is a clang extension [-Wgcc-compat]i
gn_i  m162p | l ,   & & ,  _&_&a,t tfrailbsuet,e _f_a(l(seen,a
b      l| e  ^_
if/usr/local/clang/include/absl/container/internal/raw_hash_map.h(:V133a:l52i:d Fnote: oexpanded from macro 'ABSL_INTERNAL_X'r
mat  I133m | p l < A r g s . . . >A(BsS)L,_ I"NbTaEdR NfAoLr_mAaTtT RtIrBaUpT"E)_)C)A
P      T| U                     ^R
ED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-geography.cpp:4:
In file included from ./s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hexpanded from macro 'absl_nonnull':
267:75  :241  | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efine   267a | b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^k
ey_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h                                   ^:
283:64:/usr/local/clang/include/absl/base/nullability.h :241warning: :22'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'absl_nonnull'
  283   | 241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTURED_BY(thiIn file included from ss2-lnglat.cpp):,2
:
      In file included from | ./s2/s2latlng.h                                                               ^~~~:
32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2-lnglat.cpp):
2      :
| In file included from                                                                 ^~~~./s2/s2latlng.h
:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nIn file included from us2-matrix.cppl:l6a:
bIn file included from i./s2/s2boolean_operation.hl:i26t:
yIn file included from _../src/s2/s2builder.hu:n31k:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hw:n43 :
_In file included from N/usr/local/clang/include/absl/container/hash_container_defaults.hu:l19l:
_In file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:s57p:
eIn file included from c/usr/local/clang/include/absl/hash/hash.hi:f89i:
eIn file included from d/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
                                 ^In file included from 
/usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inlinIn file included from es2-lnglat.cpp :u2i:
nIn file included from t./s2/s2latlng.h1:632_:
tIn file included from  ../src/s2/s1angle.hU:n28a:
lIn file included from i../src/s2/s2point.hg:n27e:
dIn file included from L../src/s2/s2coder.ho:a23d:
1In file included from 6/usr/local/clang/include/absl/status/status.h(:c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29v:
oIn file included from i/usr/local/clang/include/absl/strings/cord.hd:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n814n:u20l:l  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
        | 814 |                                             ^ 
 Condit/usr/local/clang/include/absl/base/nullability.hi:o241n:(22b:o onote: lexpanded from macro 'absl_nonnull' 
(*  a241b | s#ld_enfoinnneu lalb sflu_nnco)n(nTu*l la b_sNlo_nnnuulllla
b      i| l                     ^i
ty_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s2-matrix.cpp
:6:
In file included from   ./s2/s2boolean_operation.h814: | 26 :
 In file included from C../src/s2/s2builder.ho:n31d:
iIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.hi:o43n:
(In file included from b/usr/local/clang/include/absl/container/hash_container_defaults.ho:o19l:
 In file included from (/usr/local/clang/include/absl/container/internal/hash_function_defaults.h*:a57b:
sIn file included from l/usr/local/clang/include/absl/hash/hash.h_:n89o:
nIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hu:l79l:
 In file included from f/usr/local/clang/include/absl/base/internal/endian.hu:n26c:
)/usr/local/clang/include/absl/base/internal/unaligned_access.h(:T45*: 45a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null   a45b | iilniltiyn_eu nukinnotw3n2)_,t
       U| n                                         ^a
li/usr/local/clang/include/absl/base/nullability.hg:n289e:d34L:o anote: dexpanded from macro 'absl_nullability_unknown'3
2(  c289o | n#sdte fvionied *a basbls_ln_unlolnanbuillli tpy)_ u{n
k      n| o                                            ^w
n _/usr/local/clang/include/absl/base/nullability.hN:u241l:l22_:u nnote: sexpanded from macro 'absl_nonnull'p
ec  i241f | i#edde
f      i| n                                 ^e
 absl_nonnull _In file included from Ns2-lnglat.cppo:n2n:
uIn file included from l./s2/s2latlng.hl:
32      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);In file included from 
s2-matrix.cpp      :| 6               ^:

In file included from ./s2/s2boolean_operation.h:/usr/local/clang/include/absl/base/nullability.h26::
289In file included from :../src/s2/s2builder.h34::31 :
In file included from note: /usr/local/clang/include/absl/container/flat_hash_set.hexpanded from macro 'absl_nullability_unknown':
43:
In file included from   /usr/local/clang/include/absl/container/hash_container_defaults.h289: | 19#:
dIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hf:i57n:
eIn file included from  /usr/local/clang/include/absl/hash/hash.ha:b89s:
lIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hn:u79l:
lIn file included from a/usr/local/clang/include/absl/base/internal/endian.hb:i26l:
i/usr/local/clang/include/absl/base/internal/unaligned_access.ht:y51_:u45n:k nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
n _N   u51l | li_nulnisnpee cuiifnite6d4
_      t|                                   ^U
nalignedLoad64(const voidIn file included from *s2-lnglat.cpp :a2b:
sIn file included from l./s2/s2latlng.h_:n32o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from p../src/s2/s2point.h): 27{:

In file included from       ../src/s2/s2coder.h| :                                            ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i830n:e14 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n830n | u l l   _ N obnonoull l(
*      a| b                     ^s
l_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2-matrix.cpp_:n6o:
nIn file included from n./s2/s2boolean_operation.hu:l26l:
 In file included from _../src/s2/s2builder.hN:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h                     ^:
19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.hs2-lnglat.cpp::892:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h./s2/s2latlng.h::7932:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/s1angle.h::2628:
:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h../src/s2/s2point.h::5727::
36In file included from :../src/s2/s2coder.h :23warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h   :5729 | :
iIn file included from n/usr/local/clang/include/absl/strings/cord.hl:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hv:o31i:
d/usr/local/clang/include/absl/synchronization/mutex.h :U830n:a36l:i gwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
dSt  o830r | e 1 6 ( v o ibdo*o la b(s*la_bnsoln_nnuolnln upl,l  ufiunntc1)6(_Tt*  va)b s{l
_      n| u                                   ^l
la/usr/local/clang/include/absl/base/nullability.hb:i241l:i22t:y _note: uexpanded from macro 'absl_nonnull'n
kn  o241w | n#)d,e
f      i| n                                   ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s289l:_34n:o nnote: nexpanded from macro 'absl_nullability_unknown'u
ll   _289N | o#ndneufliln
e       | a                     ^b
sl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from In file included from s2-lnglat.cpp../src/s2/s2builder.h::231:
:
In file included from In file included from ./s2/s2latlng.h/usr/local/clang/include/absl/container/flat_hash_set.h::3243:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/hash_container_defaults.h::2819:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2757:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/hash/hash.h::2389:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/hash/internal/hash.h::6779:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/internal/endian.h::2926:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::9461:
:In file included from 36/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
831:46:    warning: 61 | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i
nli  n831e |   v o i d   Utnyapleinganmeed Satbosrle:3:2t(yvpoei_di*d eanbtsilt_yn<oTn>n:u:ltly ppe,*  uaibnstl3_2n_utl lva)b i{l
i      t| y                                   ^_
un/usr/local/clang/include/absl/base/nullability.hk:n241o:w22n:
       | note:                                              ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241289 | :#34d:e fnote: iexpanded from macro 'absl_nullability_unknown'n
e   a289b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
i      l| i                     ^t
y_unknown _Null_unspecified
      |                                  ^
In file included from In file included from s2-lnglat.cpps2-matrix.cpp::26:
:
In file included from In file included from ./s2/s2latlng.h./s2/s2boolean_operation.h::3226:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2builder.h::2831:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/flat_hash_set.h::2743:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/hash_container_defaults.h::2319:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::6757:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/hash/hash.h::2989:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/hash/internal/hash.h::9479:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/internal/endian.h::3126:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::84465::1036::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  844 |     65  |  i n l iTn*e  avbosild_ nUonnanluilgln eodbSjteocrte,6
4      (| v         ^o
id/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dpe,f iunien ta6b4s_lt_ nvo)n n{u
l      l|                                     ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_noIn file included from ns2-lnglat.cppn:u2l:
lIn file included from  ./s2/s2latlng.h_:N32o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2-matrix.cppexpanded from macro 'absl_nullable':
6:
In file included from   ./s2/s2boolean_operation.h257: | 26#:
dIn file included from e../src/s2/s2builder.hf:i31n:
eIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l:
lIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hb:l57e:
 In file included from _/usr/local/clang/include/absl/hash/hash.hN:u89l:
lIn file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:l79e:

      /usr/local/clang/include/absl/base/internal/endian.h| :                      ^160
:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160In file included from  | s2-lnglat.cppi:n2l:
iIn file included from n./s2/s2latlng.he: 32u:
iIn file included from n../src/s2/s1angle.ht:1286:
_In file included from t../src/s2/s2point.h :L27o:
aIn file included from d../src/s2/s2coder.h1:623(:
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from v/usr/local/clang/include/absl/status/internal/status_internal.ho:i29d:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l954l: 52p:)  warning: {type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                    ^
  954 |  /usr/local/clang/include/absl/base/nullability.h :s241t:a22t:i cnote:  expanded from macro 'absl_nonnull'b
oo  l241  | C#adlelfVionied PatbrsFlu_nncotninounl(lc o_nNsotn nCuolnld
i      t| i                     ^o
n* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2-matrix.cppl:l6
:
      In file included from | ./s2/s2boolean_operation.h                     ^:
26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:In file included from 164s2-lnglat.cpp::272::
 In file included from ./s2/s2latlng.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32
:
In file included from ../src/s2/s1angle.h:28  :
164In file included from  | ../src/s2/s2point.hi:n27l:
iIn file included from n../src/s2/s2coder.he: 23v:
oIn file included from i/usr/local/clang/include/absl/status/status.hd: 67S:
tIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hr:e291:
6In file included from (/usr/local/clang/include/absl/strings/cord.hv:o94i:
dIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_956n:o52n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 p,   956u | i n ts1t6a_tti cv )b o{o
l       | C                          ^a
st/usr/local/clang/include/absl/base/nullability.hA:n241d:C22a:l lnote: Fexpanded from macro 'absl_nonnull'u
nc  t241i | o#nd(ecfoinnset  aCbosnld_intoinonnu*l la b_sNlo_nnnounlnlu
l      l|                       ^c
);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hs2-lnglat.cpp::192:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h./s2/s2latlng.h::5732:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/s1angle.h::8928:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h../src/s2/s2point.h::7927:
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/s2coder.h::16823::
36In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h168: | 94i:
nIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.hu:i958n:t503:2 _warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Loa  d9583 | 2 ( csotnastti cv obiodo*l  aCbasslt_AnnodnCnaullllM ept)h o{d
(      c| o                                   ^n
st /usr/local/clang/include/absl/base/nullability.hC:o241n:d22i:t inote: oexpanded from macro 'absl_nonnull'n
*   a241b | s#ld_enfoinnneu lalb scl)_;n
o      n| n                                                 ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cppIn file included from :s2-matrix.cpp2::
6In file included from :
./s2/s2latlng.hIn file included from :./s2/s2boolean_operation.h32::
26In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2builder.h28::
31In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h27::
43In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h23::
19In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h67::
57In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/hash/hash.h29::
89In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h94::
79In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/base/internal/endian.h31::
172:/usr/local/clang/include/absl/synchronization/mutex.h27::961 :34warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 |   i961n | l i nset avtoiicd  bSotoolr eC3a2l(lvBoyiRde*f (acbosnls_tn oTn*n ualbls lp_,n ouninnutl3l2 _ste lvf))  {{

            | |                           ^                                 ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2-matrix.cpp::296:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h./s2/s2boolean_operation.h::9426:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2builder.h::3131:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/flat_hash_set.h::97543::
31In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :19warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from   /usr/local/clang/include/absl/hash/hash.h975: | 89 :
 In file included from i/usr/local/clang/include/absl/hash/internal/hash.hn:l79i:
n/usr/local/clang/include/absl/base/internal/endian.he: 176v:o36i:d  warning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
adC  a176l | libnalcikn(eT *u ianbts6l4__nto nLnoualdl6 4c(aclolnbsatc kv)o icdo*n satb s{l
_      n| o                              ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :p22):  {note: 
expanded from macro 'absl_nonnull'      
|                                    ^  
241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 | In file included from  s2-matrix.cpp :s6t:
aIn file included from t./s2/s2boolean_operation.hi:c26 :
bIn file included from o../src/s2/s2builder.ho:l31 :
AIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.hw:a43y:
sIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hr:u19e:
(In file included from c/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:n57s:
tIn file included from  /usr/local/clang/include/absl/hash/hash.hC:o89n:
dIn file included from i/usr/local/clang/include/absl/hash/internal/hash.ht:i79o:
n/usr/local/clang/include/absl/base/internal/endian.h*: 180a:b27s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b180l | ei)n l{i nree tvuorind  tSrtuoer;e 6}4
(      v| o                                          ^i
d*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #pd,e fuiinnet 6a4b_stl _vn)u l{l
a      b| l                          ^e
 _/usr/local/clang/include/absl/base/nullability.hN:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull'

      |                         ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from In file included from ./s2/s2latlng.hs2-matrix.cpp::326:
:
In file included from In file included from ../src/s2/s1angle.h./s2/s2boolean_operation.h::2826:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2builder.h::2731:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/flat_hash_set.h::2343:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/hash_container_defaults.h::6719:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2957:
:
In file included from /usr/local/clang/include/absl/hash/hash.hIn file included from :/usr/local/clang/include/absl/strings/cord.h89::
94In file included from :
/usr/local/clang/include/absl/hash/internal/hash.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h79::
31:
/usr/local/clang/include/absl/base/internal/endian.h:/usr/local/clang/include/absl/synchronization/mutex.h254::110927::34 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

   2541109 |  | i n leixnpel ivcoiitd  MSuttoerxeL1o6c(kvMoaiydb*e (aMbustle_xn*o nanbuslll_ npu,l luaibnlte1 6m_ut) 
v      )|                                   ^{

      | /usr/local/clang/include/absl/base/nullability.h                          ^:
257:23/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nullable':
 note:   expanded from macro 'absl_nonnull'257
 | #  d241e | f#idneef ianbes la_bnsull_lnaobnlneu l_lN u_lNloanbnluel
l      
|                             ^| 
                     ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from 31s2-matrix.cpp:
:6/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1117./s2/s2boolean_operation.h::3426::
 In file included from ../src/s2/s2builder.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
 In file included from 1117/usr/local/clang/include/absl/container/hash_container_defaults.h | : 19 :
eIn file included from x/usr/local/clang/include/absl/container/internal/hash_function_defaults.hp:l57i:
cIn file included from i/usr/local/clang/include/absl/hash/hash.ht: 89M:
uIn file included from t/usr/local/clang/include/absl/hash/internal/hash.he:x79L:
o/usr/local/clang/include/absl/base/internal/endian.hc:k258M:a36y:b ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
ute  x258* |  ianblsiln_en uulilnatb3l2e_ tm uL,o acdo3n2s(tc oCnosntd ivtoiiodn*&  acbosnld_)n
o      n| n                                 ^u
ll/usr/local/clang/include/absl/base/nullability.h :p257): 23{:
       | note:                                    ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241:22 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innuel laabbslle_ n_oNnunlullalb l_eN
o      n| n                      ^u
ll
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28In file included from :
s2-matrix.cppIn file included from :../src/s2/s2point.h6::
27In file included from :
./s2/s2boolean_operation.hIn file included from :../src/s2/s2coder.h26::
23In file included from :
../src/s2/s2builder.hIn file included from :/usr/local/clang/include/absl/status/status.h31::
67In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h43::
29In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :/usr/local/clang/include/absl/strings/cord.h19::
94In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h57::
31In file included from :
/usr/local/clang/include/absl/hash/hash.h:/usr/local/clang/include/absl/synchronization/mutex.h89::
1132In file included from :/usr/local/clang/include/absl/hash/internal/hash.h10::79 :
warning: /usr/local/clang/include/absl/base/internal/endian.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
262:27:  1132 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Mut  e262x | *i nalbisnle_ nvuolilda bSlteo rceo3n2s(tv omiud_*; 
a      b| s         ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: pexpanded from macro 'absl_nullable',
 u  i257n | t#3d2e_fti nve)  a{b
s      l| _                          ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  _note: Nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed
e      f| i                      ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |    In file included from  s2-matrix.cpp : 6t:
hIn file included from i./s2/s2boolean_operation.hs:)26):
 In file included from A../src/s2/s2builder.hB:S31L:
_In file included from E/usr/local/clang/include/absl/container/flat_hash_set.hX:C43L:
UIn file included from S/usr/local/clang/include/absl/container/hash_container_defaults.hI:V19E:
_In file included from L/usr/local/clang/include/absl/container/internal/hash_function_defaults.hO:C57K:
_In file included from F/usr/local/clang/include/absl/hash/hash.hU:N89C:
TIn file included from I/usr/local/clang/include/absl/hash/internal/hash.hO:N79(:
m/usr/local/clang/include/absl/base/internal/endian.hu:)270
:      27| :      ^~~~ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_n/usr/local/clang/include/absl/synchronization/mutex.ho:n1153n:u39l:l  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 ui n1153t | 6 4 _etx pvl)i c{i
t       | R                          ^e
le/usr/local/clang/include/absl/base/nullability.ha:s241a:b22l:e Mnote: uexpanded from macro 'absl_nonnull't
ex  L241o | c#kd(eMfuitneex *a basbls_ln_onnonnunlull l_ Nmoun)n
u      l| l                                      ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2-matrix.cppl:l6 :
_In file included from N./s2/s2boolean_operation.ho:n26n:
uIn file included from l../src/s2/s2builder.hl:
31      :
| In file included from                      ^/usr/local/clang/include/absl/container/flat_hash_set.h
:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      In file included from | s2-matrix.cpp                                                  ^:
6:
In file included from /usr/local/clang/include/absl/base/nullability.h./s2/s2boolean_operation.h::24126::
22In file included from :../src/s2/s2builder.h :31note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43  :
241In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h#:d19e:
fIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e57 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:n90u:
ll/usr/local/clang/include/absl/strings/string_view.h :_53N:o54n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l

      |                      ^
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23In file included from :s2-lnglat.cpp :2note: :
expanded from macro 'absl_nullable'In file included from 
./s2/s2latlng.h:32  :
257In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29_:
N/usr/local/clang/include/absl/strings/cord.hu:l1275l:a51b:l ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-lnglat.cpp:2:
In file included from ./s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2-matrix.cpp:6:
In file included from ./s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2-matrix.cpp:9:
In file included from ./s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
365 warnings generated.
/usr/local/clang23/bin/clang-23 -std=gnu23 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -Wp,-D_FORTIFY_SOURCE=3  -c wk-impl.c -o wk-impl.o
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/accessors-geog.cc -o s2geography/accessors-geog.o
693 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/accessors.cc -o s2geography/accessors.o
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/build.cc -o s2geography/build.o
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | In file included from #s2geography/build.ccd:e2f:
iIn file included from ns2geography/build.he: 4a:
bIn file included from s../src/s2/s2builderutil_s2point_vector_layer.hl:_25n:
uIn file included from l../src/s2/base/logging.hl:a21b:
lIn file included from e/usr/local/clang/include/absl/log/check.h :_37N:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_op.h
:      40| :
                      ^In file included from 
/usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexIn file included from ps2geography/accessors.ccr: 2s:
tIn file included from rs2geography/accessors.hi:n4g:
_In file included from vs2geography/geography.hi:e4w:
 In file included from N../src/s2/s2polygon.hu:l29l:
SIn file included from a/usr/local/clang/include/absl/container/flat_hash_map.hf:e43S:
tIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.hi:n19g:
VIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:w59(:
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s94t:
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.hh:a31r:
*/usr/local/clang/include/absl/synchronization/mutex.h :a1117b:s34l:_ nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
labl e1117  | p )  e{x
p      l| i                                                     ^c
it Mut/usr/local/clang/include/absl/base/nullability.he:x257L:o23c:k Mnote: aexpanded from macro 'absl_nullable'y
be  (257M | u#tdeexf*i naeb salb_snlu_lnlualbllaeb lmeu ,_ Ncuolnlsatb lCeo
n      d| i                      ^t
ion& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/coverings.cc -o s2geography/coverings.o
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2geography/accessors.cc:
:In file included from 2/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29s2geography/accessors.h:
:In file included from 4/usr/local/clang/include/absl/strings/cord.h:
:In file included from 86s2geography/geography.h:
:4/usr/local/clang/include/absl/strings/cord_analysis.h:
:In file included from 50../src/s2/s2polygon.h::4932::
 In file included from ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h   :5021 | :
sIn file included from i/usr/local/clang/include/absl/log/internal/check_op.hz:e41_:
tIn file included from  /usr/local/clang/include/absl/log/internal/strip.hG:e26t:
M/usr/local/clang/include/absl/log/internal/log_message.ho:r425e:P31r:e cwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
eMem  o425r | y U sLaoggeM(ecsosnasgte FCaotradlR(ecpo*n satb sclh_anro*n naublsll _rneopn)n;u
l      l|                                                  ^f
il/usr/local/clang/include/absl/base/nullability.he:,241 :i22n:t  note: lexpanded from macro 'absl_nonnull'i
ne  )241  | A#BdSeLf_iAnTeT RaIbBsUlT_En_oCnOnLuDl;l
       _|                               ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2geography/accessors-geog.ccn:n2u:
lIn file included from ls2geography/accessors-geog.h :_4N:
oIn file included from n../src/s2/s2convex_hull_query.hn:u25l:
lIn file included from 
../src/s2/s2cap.h      :| 30                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | sIn file included from is2geography/accessors.ccz:e2_:
tIn file included from  s2geography/accessors.hG:e4t:
EIn file included from ss2geography/geography.ht:i4m:
aIn file included from t../src/s2/s2polygon.he:d32F:
aIn file included from i../src/s2/base/logging.hr:S21h:
aIn file included from r/usr/local/clang/include/absl/log/check.he:M37e:
mIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:y21U:
sIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hg:e41(:
cIn file included from o/usr/local/clang/include/absl/log/internal/strip.hn:s26t:
 /usr/local/clang/include/absl/log/internal/log_message.hC:o426r:d31R:e pwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l426_ | n o nLnouglMle srseapg)e;F
a      t| a                                                       ^l
(c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sfli_lneo,n niunltl  l_iNnoen,n
u      l| l                              ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absIn file included from ls2geography/build.cc_:n2u:
lIn file included from ls2geography/build.ha:b4l:
eIn file included from  ../src/s2/s2builderutil_s2point_vector_layer.hn:a25m:
eIn file included from #../src/s2/base/logging.h#:I21m:
pIn file included from l/usr/local/clang/include/absl/log/check.h(: 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h :\119
:      41| :                               ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23  :119  | note:  expanded from macro 'absl_nullable' 
Lo  g257M | e#sdseafgien&e  TaobSsiln_knAullsloa(balbes l_:N:uLlolgaSbilnek
*       | a                      ^b
sl_nonnull sinkIn file included from )s2geography/accessors.cc;:
2      :
| In file included from                                         ^s2geography/accessors.h
:4:
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2geography/geography.h241::422:
:In file included from  ../src/s2/s2polygon.hnote: :expanded from macro 'absl_nonnull'32
:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n505o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_N/usr/local/clang/include/absl/log/internal/check_op.ho:n489n:u47l:l 
      note: | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'                     ^

  489 |       const T1& v1In file included from ,s2geography/build.cc :c2o:
nIn file included from ss2geography/build.ht: 4T:
2In file included from &../src/s2/s2builderutil_s2point_vector_layer.h :v252:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :c37h:
In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hr:*21 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs:l41_:
nIn file included from o/usr/local/clang/include/absl/log/internal/strip.hn:n26u:
l/usr/local/clang/include/absl/log/internal/log_message.hl: 121e:x41p:r twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
t)   {121  |      L o\g
M      e| s                                              ^s
ag/usr/local/clang/include/absl/base/nullability.he:&241 :T22o:S inote: nexpanded from macro 'absl_nonnull'k
On  l241y | (#adbesfli:n:eL oagbSsiln_kn*o nanbuslll_ n_oNnonnunlull ls
i      n| k                     ^)
;
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from s2geography/build.cc:  2497:
 | In file included from  s2geography/build.h :i4n:
lIn file included from i../src/s2/s2builderutil_s2point_vector_layer.hn:e25 :
cIn file included from o../src/s2/base/logging.hn:s21t:
eIn file included from x/usr/local/clang/include/absl/log/check.hp:r37 :
cIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:s21t:
 In file included from c/usr/local/clang/include/absl/log/internal/check_op.hh:a41r:
*In file included from  /usr/local/clang/include/absl/log/internal/strip.ha:b26s:
l/usr/local/clang/include/absl/log/internal/log_message.h_:n158u:l32l:a bwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 na  m158e | # # ILmopglM(e s s a g e &   o p e r a t o r < < ( v\o
i      d| *                               ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23u:l lnote: aexpanded from macro 'absl_nullable'b
le   257  | v#)d e{f
i      n| e                               ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23u:l lnote: aexpanded from macro 'absl_nullable'b
le   257_ | N#udlelfaibnlee 
a      b| s                      ^l
_nullableIn file included from  s2geography/accessors.cc_:N2u:
lIn file included from ls2geography/accessors.ha:b4l:
eIn file included from 
s2geography/geography.h      :| 4                      ^:

In file included from ../src/s2/s2polygon.h:32:
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :19137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hL:o21g:
Me/usr/local/clang/include/absl/log/internal/check_op.hs:s505a:g1e:&  warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
erat/usr/local/clang/include/absl/log/internal/check_op.ho:r498<:<35(:s tnote: dexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
:ios_  b498a | s e &   ( * aibnstl _vn1o,n niunltl  vm2),( sctodn:s:ti ocsh_abra*s ea&b sols_)n)o;n
n      u| l                                          ^l
 e/usr/local/clang/include/absl/base/nullability.hx:p241r:t22e:x tnote: )expanded from macro 'absl_nonnull' 
{    241  |  # d e f i n e   a b s l _ n\o
n      n| u                                  ^l
l _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2geography/accessors.cc23::2 :
In file included from note: s2geography/accessors.hexpanded from macro 'absl_nullable':
4:
In file included from   s2geography/geography.h257: | 4#:
dIn file included from e../src/s2/s2polygon.hf:i32n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:
 _/usr/local/clang/include/absl/log/internal/check_op.hN:u506l:l1a:b lwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                       ^
  506 | ABSL_In file included from Ls2geography/accessors-geog.ccO:G2_:
IIn file included from Ns2geography/accessors-geog.hT:E4R:
NIn file included from A../src/s2/s2convex_hull_query.hL:_25C:
HIn file included from E../src/s2/s2cap.hC:K30_:
OIn file included from P../src/s2/s1angle.h_:I28M:
PIn file included from L../src/s2/s2point.h(:C27h:
eIn file included from c../src/s2/s2coder.hk:_23G:
EIn file included from ,/usr/local/clang/include/absl/status/status.h :>67=:
)In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 488/usr/local/clang/include/absl/strings/internal/cordz_info.h::3231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'489
:45:   warning: 488type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
  i  n489l | i n e   c o nvsotiedx p(r* acbosnls_tn uclhlaarb*l ea bisnlv_anruilalnatb)l(ev oniadm*e #a#bIsmlp_ln(u l l a b i l i t y _ u n k n o w n ) ,\

            | |                                             ^                               ^

/usr/local/clang/include/absl/base/nullability.h:289/usr/local/clang/include/absl/base/nullability.h::34257:: 23:note:  expanded from macro 'absl_nullability_unknown'
note: expanded from macro 'absl_nullable'
  289 |   #257d | e#fdienfei naeb salb_snlu_lnlualblialbiltey __uNnuklnloawbnl e_
N      u| l                      ^l
_unspecified
      | In file included from                                  ^s2geography/accessors.cc
:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2geography/accessors-geog.cc/usr/local/clang/include/absl/log/internal/check_impl.h::221:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2geography/accessors-geog.h::5064::
1In file included from :../src/s2/s2convex_hull_query.h :25warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2cap.h:30/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 489../src/s2/s1angle.h::4728::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'27
:
In file included from ../src/s2/s2coder.h:23  :
489In file included from  | /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht: 94T:
1In file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h :v311:
,/usr/local/clang/include/absl/synchronization/mutex.h :c490o:n13s:t  warning: Ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]2
& v  2490, |   c o n s t  vcohiadr**  aabbssll__nnuolnlnaublill ietxyp_rutnekxnto)w n{  a r g ) ;\

            | |             ^                                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::289241::3422::  note: note: expanded from macro 'absl_nullability_unknown'expanded from macro 'absl_nonnull'

    289241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaublill i_tNyo_nunnuklnlo
w      n|                       ^_
Null_unspecified
      |                                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nulIn file included from ls2geography/accessors.cca:b2l:
eIn file included from  s2geography/accessors.hn:a4m:
eIn file included from )s2geography/geography.h;:
4      :
| In file included from                                   ^../src/s2/s2polygon.h
:32:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h257::2123:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21257:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d506e:f1i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_497n:u32l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
e _N  u497l | l a bilnel
i      n| e                      ^ 
constexpr const char* absl_nullable name##Impl(                   In file included from \s2geography/accessors-geog.cc:
2      :
| In file included from                                ^s2geography/accessors-geog.h
:4:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2convex_hull_query.h::25725::
23In file included from :../src/s2/s2cap.h :30note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s1angle.h:28  :
257In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he: 94_:
NIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31a:
b/usr/local/clang/include/absl/synchronization/mutex.hl:e549
:      40| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |  In file included from  s2geography/accessors.ccs:t2a:
tIn file included from is2geography/accessors.hc: 4v:
oIn file included from is2geography/geography.hd: 4I:
nIn file included from c../src/s2/s2polygon.hr:e32m:
eIn file included from n../src/s2/base/logging.ht:S21y:
nIn file included from c/usr/local/clang/include/absl/log/check.hh:S37e:
mIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hM:u21t:
e/usr/local/clang/include/absl/log/internal/check_op.hx:*506 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u498l:l35 :m unote: ,expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

        | 498                                       ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22i:n tnote:  expanded from macro 'absl_nonnull'v
1,   241i | n#td evf2i,n ec oanbsstl _cnhoanrn*u lalb s_lN_onnonnunlull
l       | e                     ^x
prtext) {     In file included from  s2geography/accessors-geog.cc : 2 :
 In file included from  s2geography/accessors-geog.h : 4 :
 In file included from  ../src/s2/s2convex_hull_query.h :\25
:
      In file included from | ../src/s2/s2cap.h                                  ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 550_:N64o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^550
 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable wIn file included from as2geography/accessors.cci:t2p:
)In file included from  s2geography/accessors.hA:B4S:
LIn file included from _s2geography/geography.hA:T4T:
RIn file included from I../src/s2/s2polygon.hB:U32T:
EIn file included from _../src/s2/base/logging.hC:O21L:
DIn file included from ;/usr/local/clang/include/absl/log/check.h
:      37| :
                                   ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/log/internal/check_op.h::23507:: 1:note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
257 | #d  e507f | iAnBeS La_bLsOlG__nIuNlTlEaRbNlAeL __CNHuElClKa_bOlPe_
I      M| P                      ^L
(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char*In file included from  s2geography/accessors-geog.cca:b2s:
lIn file included from _s2geography/accessors-geog.hn:u4l:
lIn file included from a../src/s2/s2convex_hull_query.hb:l25e:
 In file included from n../src/s2/s2cap.ha:m30e:
#In file included from #../src/s2/s1angle.hI:m28p:
lIn file included from (../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from \/usr/local/clang/include/absl/strings/cord.h
:      94| :
                               ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h257::57623::49 : note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  257 |   #576d | e f ivnoei da bTsrly_Rneumlolvaeb(lbea s_eN_uilnltaebrlnea
l      :| :                      ^P
erThreadSynchIn file included from *s2geography/accessors.cc :a2b:
sIn file included from ls2geography/accessors.h_:n4o:
nIn file included from ns2geography/geography.hu:l4l:
 In file included from s../src/s2/s2polygon.h):;32
:
      In file included from | ../src/s2/base/logging.h                                                ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:507:  1241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fi/usr/local/clang/include/absl/log/internal/check_op.hn:e489 In file included from :as2geography/build.cc47b::s2 l:
note: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'nIn file included from 
os2geography/build.hn:  n4489u:
 | lIn file included from  l ../src/s2/s2builderutil_s2point_vector_layer.h  _: N 25o :
ncIn file included from nou../src/s2/base/logging.hnl:slt21
 :
      TIn file included from | 1/usr/local/clang/include/absl/log/check.h                     ^&:
 37v:
1In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_op.ht: 41T:
In file included from 2In file included from s2geography/accessors-geog.cc&/usr/local/clang/include/absl/log/internal/strip.h: :2v26:
2:
In file included from ,s2geography/accessors-geog.h /usr/local/clang/include/absl/log/internal/log_message.h:c:4o319:
n:In file included from s20../src/s2/s2convex_hull_query.ht::  c25hwarning: :
atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from r
../src/s2/s2cap.h*: 30a:
bIn file included from s  ../src/s2/s1angle.hl319:_ | 28 n:
o In file included from n ../src/s2/s2point.h nc:uo27ln:
lsIn file included from  t../src/s2/s2coder.he :xw23pc:
rhIn file included from ta/usr/local/clang/include/absl/status/status.her:x_67tt:
)*In file included from   a/usr/local/clang/include/absl/status/internal/status_internal.hb{s:l 29_ :
n In file included from  u/usr/local/clang/include/absl/strings/cord.h l:\l94a
b:
l      In file included from e|  /usr/local/clang/include/absl/strings/internal/cordz_info.hc                                              ^:o
31n:
s/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.ht::&578241 ::v4522)::; 
warning:        note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'| 

                   ^
    241578 |  | /usr/local/clang/include/absl/base/nullability.h# d: ev257fo:iin23de : Ba lbonote: sexpanded from macro 'absl_nullable'clk
_(nbo  ans257neu | _li#ln dt_eefNrionnnanelu :la:lPb
se      lr| T_                     ^hn
urlelaadbSlyen c_hN*u lalbasbll_en
o      n| n                      ^u
ll s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.hIn file included from :s2geography/accessors-geog.cc25::
2In file included from :
../src/s2/base/logging.hIn file included from :s2geography/accessors-geog.h21::
4In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :In file included from ../src/s2/s2convex_hull_query.h37s2geography/accessors.cc::
:25In file included from 2:
/usr/local/clang/include/absl/log/internal/check_impl.h:
In file included from :In file included from ../src/s2/s2cap.h21s2geography/accessors.h::
:30In file included from 4:
/usr/local/clang/include/absl/log/internal/check_op.h:
In file included from :In file included from ../src/s2/s1angle.h41s2geography/geography.h::
:28In file included from 4:
/usr/local/clang/include/absl/log/internal/strip.h:
In file included from :In file included from ../src/s2/s2point.h26../src/s2/s2polygon.h::
:27/usr/local/clang/include/absl/log/internal/log_message.h32:
::
In file included from 321In file included from ../src/s2/s2coder.h:../src/s2/base/logging.h:52:23:21:
 :
In file included from warning: In file included from /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.h:
:6737:
:
In file included from   In file included from /usr/local/clang/include/absl/status/internal/status_internal.h321/usr/local/clang/include/absl/log/internal/check_impl.h: | :i2921n:
:
l/usr/local/clang/include/absl/log/internal/check_op.hIn file included from i:/usr/local/clang/include/absl/strings/cord.hn507:e:94 1:
L:In file included from o /usr/local/clang/include/absl/strings/internal/cordz_info.hgwarning: :Mtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e31
s:
/usr/local/clang/include/absl/log/internal/check_op.hs/usr/local/clang/include/absl/synchronization/mutex.h:a:497g580e::&3234 ::L  onote: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
M
es  s  a497580g |  |  e :  i:bnaolspiene_eri nacttooenrrsn<ta<el(x:wp:rcPh eacrTrh_rteo*and sSatyb snlcch_ha*nr *ua lbaslblsa_lbnl_eunl uvl)lalb albe{l 
eW       an| ka                                                   ^em
uep#/usr/local/clang/include/absl/base/nullability.h(#:
I257m      :p| l                                 ^23(
:  /usr/local/clang/include/absl/base/nullability.h note: :expanded from macro 'absl_nullable' 257 
: 23   : 257   |  note: # expanded from macro 'absl_nullable'd 
 e   f257i  |  n# ed  e fa i\bn
es       l| a_                               ^bn
usl/usr/local/clang/include/absl/base/nullability.hll:_a257bnl:ue23l :l_ aNnote: bexpanded from macro 'absl_nullable'ul
lel   a257_b | N#ludleel
fa      ibn| lee                      ^ 
a
      b| s                      ^l
_nullablIn file included from es2geography/accessors-geog.cc :_2N:
uIn file included from ls2geography/accessors-geog.hl:a4b:
lIn file included from e../src/s2/s2convex_hull_query.h
:      25| :
                      ^In file included from 
../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2geography/accessors.cc::232:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2geography/accessors.h::674:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2geography/geography.h::294:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2polygon.h::9432:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/base/logging.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/check.h581::3738:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/log/internal/check_op.h:507:  1581: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h :b498a:s35e:_ inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
ern  a498l | : : P e r T hirneta dvS1y,n cihn*t  avb2s,l _cnoonnsntu lclh awr)*; 
a      b| s                                     ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: eexpanded from macro 'absl_nonnull'x
pr  t241e | x#td)e f{i n e   a b s In file included from l s2geography/build.cc_ :n o 2n n:
 u In file included from l s2geography/build.hl :  _4\N
:
o      nIn file included from | n../src/s2/s2builderutil_s2point_vector_layer.h                                  ^u:
l25l/usr/local/clang/include/absl/base/nullability.h:

:In file included from       241../src/s2/base/logging.h| ::                     ^2221
::
 In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nonnull':
37:
  In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_op.hi:n41e:
 In file included from a/usr/local/clang/include/absl/log/internal/strip.hb:In file included from s26s2geography/accessors-geog.ccl:
:_2n/usr/local/clang/include/absl/log/internal/log_message.h:
o:In file included from n340s2geography/accessors-geog.hn::u464l::
l In file included from  warning: ../src/s2/s2convex_hull_query.h_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:N
25o:
nIn file included from n../src/s2/s2cap.hu  :l34030l | :

 In file included from        ../src/s2/s1angle.hf| :                     ^r28
i:
eIn file included from n../src/s2/s2point.hd: 27v:
oIn file included from i../src/s2/s2coder.hd: 23A:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:F67o:
rIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.ha:t29F:
lIn file included from u/usr/local/clang/include/absl/strings/cord.hs:h94(:
SIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hr:i31n:
g/usr/local/clang/include/absl/synchronization/mutex.hi:f585y:S20i:n kwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l585_ | n o nvnouildl  Tsriannks,(
M      u| H                                             ^o
w a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241h | o#wd)e;f i n/e/  aubsseld_ nfoonrn uCloln d_VNaorn-n>uMlult
e      x|                       ^t
ransfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BIn file included from Ys2geography/accessors.cc(:t2h:
iIn file included from ss2geography/accessors.h):)4
:
      In file included from | s2geography/geography.h                                                                   ^~~~:
4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511In file included from :s2geography/build.cc13::2 :
In file included from warning: s2geography/build.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h  :51125 | :
cIn file included from o../src/s2/base/logging.h/usr/local/clang/include/absl/synchronization/mutex.hn::s21635t:
: In file included from 29c/usr/local/clang/include/absl/log/check.h:h: a37warning: r:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*In file included from 
 /usr/local/clang/include/absl/log/internal/check_impl.ha:b21  s:
635lIn file included from  | _ /usr/local/clang/include/absl/log/internal/check_op.hn :uel41xlp:
albIn file included from ilce/usr/local/clang/include/absl/log/internal/strip.hi tC: hM26euc:
tk/usr/local/clang/include/absl/log/internal/log_message.hesx:tL425roc:cmk31p(t:Mruu teewarning: Ixmtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*p
 la(b
s        l425| _            ^ | n
 o nL/usr/local/clang/include/absl/base/nullability.hno:gu257Ml:el23 s:sm aunote: g)expanded from macro 'absl_nullable' e
AFB  aS257tL | a_l#(EdXceCofnLisUtn SecI hVaaEbr_sL*l Oa_CbnKus_lFll_UanNboCnlnTuIleOl N _(fNmiuull)el,
 a      bi| nl                            ^te 

l      i| n                      ^/usr/local/clang/include/absl/base/nullability.he
:)241 :A22B:SIn file included from  Lnote: _s2geography/accessors.ccexpanded from macro 'absl_nonnull'A:
T2T  :
R241In file included from I | s2geography/accessors.hB#:Ud4eT:
EfIn file included from _is2geography/geography.hCn:Oe4 L:
DaIn file included from ;b../src/s2/s2polygon.h
s:l      32_| :
n                              ^In file included from o
../src/s2/base/logging.hn:n21/usr/local/clang/include/absl/base/nullability.hu:
:lIn file included from 241l/usr/local/clang/include/absl/log/check.h ::_2237N::
o In file included from nnote: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull'n:u
21l:
l/usr/local/clang/include/absl/log/internal/check_op.h  
:241      512 | | :                     ^#17d
e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 ab  s512l | _ n o n ncuolnls t_ Ncohnanru*l laIn file included from 
bs2geography/accessors-geog.cc      s:l| 2_                     ^:
n
In file included from us2geography/accessors-geog.hl:l4a:
bIn file included from l../src/s2/s2convex_hull_query.he: 25s:
1In file included from ,../src/s2/s2cap.h :c30o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23In file included from _:
s2geography/build.ccnIn file included from u:/usr/local/clang/include/absl/status/status.hl2:l:
67aIn file included from b:
ls2geography/build.heIn file included from  :s/usr/local/clang/include/absl/status/internal/status_internal.h24:,:
29
In file included from :
      ../src/s2/s2builderutil_s2point_vector_layer.hIn file included from | :/usr/local/clang/include/absl/strings/cord.h                ^25:
:
94In file included from /usr/local/clang/include/absl/base/nullability.h:
../src/s2/base/logging.h:In file included from :257/usr/local/clang/include/absl/strings/internal/cordz_info.h21:::
2331In file included from ::
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/synchronization/mutex.h ::note: 37641expanded from macro 'absl_nullable':
:
In file included from 68  /usr/local/clang/include/absl/log/internal/check_impl.h:257:  | 21#warning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
e
fIn file included from i/usr/local/clang/include/absl/log/internal/check_op.hn:  e41641 :
 | a In file included from b s/usr/local/clang/include/absl/log/internal/strip.hel:x_p26nlu:
ilc/usr/local/clang/include/absl/log/internal/log_message.hlia:tb426 lM:eu 31t_:eNx uLlwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lc
akb(lM  eu
426t      e | | x                      ^ &
  mLuo gAMBIn file included from Ses2geography/accessors.ccLs:_s2aI:
NgIn file included from Tes2geography/accessors.hEF:Ra4Nt:
aAIn file included from Lls2geography/geography.h_(:cA4To:
TnIn file included from Rs../src/s2/s2polygon.hIt:B 32Uc:
ThIn file included from Ea../src/s2/base/logging.h_r:C*21A :
PaIn file included from Tb/usr/local/clang/include/absl/log/check.hUs:Rl37E_:
DnIn file included from _o/usr/local/clang/include/absl/log/internal/check_impl.hnB:nY21(u:
tl/usr/local/clang/include/absl/log/internal/check_op.hhl:i 512sf:)i47,l:
e       warning: ,| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                                                   ^~~~ 

i  n512t |   l i n ec,o
n      s| t                              ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b/usr/local/clang/include/absl/synchronization/mutex.h s:lnote: 649_expanded from macro 'absl_nonnull':n
29u:l   l241warning: a | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b#
ldee   fs6491i | ,n   ece oxanpbsltis ccliht_a rnM*uo ntaenbxsLullo_lcnk u_(lMNluaotbnelxne*u  sla2lb,
s
      l      _| |                      ^n                                              ^
o
nnu/usr/local/clang/include/absl/base/nullability.hl:l257 :m23u:In file included from , s2geography/build.ccnote:  expanded from macro 'absl_nullable':c
o2  n:
257sIn file included from  | t#s2geography/build.h dC:eof4ni:
dniIn file included from et../src/s2/s2builderutil_s2point_vector_layer.h i:aob25ns:
&l In file included from _c../src/s2/base/logging.hnou:nl21dl:
)a
bIn file included from       l/usr/local/clang/include/absl/log/check.h| e                            ^: 
_37N/usr/local/clang/include/absl/base/nullability.h:
u:In file included from l241l/usr/local/clang/include/absl/log/internal/check_impl.h:a:22b21:l:
 eIn file included from note: 
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h      
:| 41                      ^:
  
In file included from 241/usr/local/clang/include/absl/log/internal/strip.h | :#26d:
eIn file included from /usr/local/clang/include/absl/log/internal/log_message.hfs2geography/accessors.cci::n4272e::
 31In file included from a:s2geography/accessors.hb :s4lwarning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_In file included from 
ns2geography/geography.ho:n4n  :
u427In file included from l | ../src/s2/s2polygon.hl :  32_ :
N oIn file included from n n../src/s2/base/logging.hu :l 21l :

 In file included from        /usr/local/clang/include/absl/log/check.h|  :                     ^ 37
 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
c/usr/local/clang/include/absl/log/internal/check_op.ho:n513s:t17 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
*   a513b | s l _ n ocnonnusltl  cfhaairl*u raeb_smls_gn)o nAnBuSlLl_ AeTxTpRrItBeUxTtE)_;C
O      L| D                ^;

      /usr/local/clang/include/absl/base/nullability.h| :                              ^241
:22/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
In file included from In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/accessors-geog.ccs2geography/build.cc:::25722::
:
23In file included from In file included from :s2geography/accessors-geog.hs2geography/build.h ::note: 44expanded from macro 'absl_nullable':
:

In file included from In file included from   ../src/s2/s2convex_hull_query.h../src/s2/s2builderutil_s2point_vector_layer.h257:: | 2525#:
d:
In file included from eIn file included from ../src/s2/s2cap.hf../src/s2/base/logging.h:i:30n21:
e:
In file included from  In file included from ../src/s2/s1angle.ha/usr/local/clang/include/absl/log/check.h:b:28s37:
l:
In file included from _In file included from ../src/s2/s2point.hn/usr/local/clang/include/absl/log/internal/check_impl.h:u:27l21:
l:
In file included from aIn file included from ../src/s2/s2coder.hb/usr/local/clang/include/absl/log/internal/check_op.h:l:23e41:
 :
In file included from _In file included from /usr/local/clang/include/absl/status/status.hN/usr/local/clang/include/absl/log/internal/strip.h:u:67l26:
l:
In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb/usr/local/clang/include/absl/log/internal/log_message.h:l:29e436:

:In file included from       36/usr/local/clang/include/absl/strings/cord.h| ::                      ^ 94
:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:In file included from 31s2geography/accessors.cc:
:  /usr/local/clang/include/absl/synchronization/mutex.h2436::
 | 670In file included from  :s2geography/accessors.h 74:L:4o :
gwarning: In file included from M'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2geography/geography.he
:s4s:
aIn file included from   g../src/s2/s2polygon.h670e: | D32 e:
b uIn file included from eg../src/s2/base/logging.hxF:pa21lt:
iaIn file included from cl/usr/local/clang/include/absl/log/check.hi(:tc37 o:
nRsIn file included from et/usr/local/clang/include/absl/log/internal/check_impl.h a:cd21he:
r/usr/local/clang/include/absl/log/internal/check_op.haM:ur515t*:e 17ax:bL oswarning: lctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]k_
(nMo  un515tn | e ux &l   lmcu of inlAseBt,S L
c_      hIa| Nr                                   ^T*E
 RaNb/usr/local/clang/include/absl/base/nullability.hAsL:l__241AnT:uT22lRl:IaB bUnote: lexpanded from macro 'absl_nonnull'TeE
 _sC  1A,241P T | c#UdoRneEsfDt_i nBceY h(aabtrhs*li sa_)b)ns
ol      n_n| nu                                                                         ^~~~ul
lll a_bNloen nsu2l,l

            | |                 ^                     ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | /usr/local/clang/include/absl/synchronization/mutex.h#:d678e:f35i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n678u | l l aebxlpel i_cNiutl lRaebaldee
r      M| u                      ^t
exLock(MIn file included from us2geography/accessors.cct:eIn file included from 2xs2geography/build.cc:
*:In file included from  2s2geography/accessors.ha:
:bIn file included from 4ss2geography/build.h:
l:In file included from _4s2geography/geography.hn:
:oIn file included from 4n../src/s2/s2builderutil_s2point_vector_layer.h:
n:In file included from u25../src/s2/s2polygon.hl:
:lIn file included from 32 ../src/s2/base/logging.h:
m:In file included from u21../src/s2/base/logging.h):
: In file included from 21A/usr/local/clang/include/absl/log/check.h:
B:In file included from S37/usr/local/clang/include/absl/log/check.hL:
:_In file included from 37S/usr/local/clang/include/absl/log/internal/check_impl.h:
H:In file included from A21/usr/local/clang/include/absl/log/internal/check_impl.hR:
:EIn file included from 21D/usr/local/clang/include/absl/log/internal/check_op.h:
_:/usr/local/clang/include/absl/log/internal/check_op.hL41:O:
515CIn file included from :K/usr/local/clang/include/absl/log/internal/strip.h47_::F26 U:
warning: N/usr/local/clang/include/absl/log/internal/log_message.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C:
T446I:O  43N515:( | m  u )warning:  
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]       c
| o                                  ^n
  s446t/usr/local/clang/include/absl/base/nullability.h  | : c241h :aL22ro:*g  Mnote: aexpanded from macro 'absl_nonnull'eb
ss  sl241_a | n#ugdlelefQaibunileee  talsb1ys,Dl _ecbnoounngsntFu lacltha al_rN(*o cnaonbnuslsll_t
n       uc| l                     ^hla
arb*l ea bss2l,_
n      o| n                                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257f:i23l:e ,note: 
expanded from macro 'absl_nullable'      
| In file included from                                           ^  s2geography/accessors-geog.cc
257: | 2/usr/local/clang/include/absl/base/nullability.h#:
d:In file included from e241s2geography/accessors-geog.hf::i224n::
e In file included from  note: ../src/s2/s2convex_hull_query.hexpanded from macro 'absl_nonnull'a:b
25s:
  lIn file included from 241_../src/s2/s2cap.hn | :u#30ld:
leIn file included from fa../src/s2/s1angle.hbi:ln28ee:
  In file included from _a../src/s2/s2point.hNb:us27ll:
l_In file included from na../src/s2/s2coder.hobn:ln23eu:

lIn file included from       l/usr/local/clang/include/absl/status/status.h|  :                      ^_67N
:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:In file included from u29s2geography/accessors.ccl:
:lIn file included from 2
/usr/local/clang/include/absl/strings/cord.h:
      :In file included from | 94                     ^s2geography/accessors.h:

:In file included from 4/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31s2geography/geography.h:
:4/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 681../src/s2/s2polygon.h::7432::
 In file included from ../src/s2/base/logging.hwarning: :21'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :68121 | :
 /usr/local/clang/include/absl/log/internal/check_op.h :e516x:p17l:i cwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 R  e516a | d e r M uctoenxsLto cckh(aMru*t eaxb&sIn file included from  ls2geography/build.ccm_:un2 o:
AnIn file included from BnSs2geography/build.huLl:_lI4 N:
eTxEpIn file included from Rr../src/s2/s2builderutil_s2point_vector_layer.hNtA:eLx_25tA):
T;In file included from T
R../src/s2/base/logging.h      I:| B                ^21U
:
TIn file included from /usr/local/clang/include/absl/base/nullability.hE/usr/local/clang/include/absl/log/check.h:_:241C37:A:
22PIn file included from :T/usr/local/clang/include/absl/log/internal/check_impl.h U:note: Rexpanded from macro 'absl_nonnull'21E
D:
  _In file included from 241B/usr/local/clang/include/absl/log/internal/check_op.h | Y#:(dt41ehfi:
isnIn file included from )e,/usr/local/clang/include/absl/log/internal/strip.h 
a:      b26| s                                                                         ^~~~:
l
_/usr/local/clang/include/absl/log/internal/log_message.hn:o454n:n38u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non  n454u | l l 
L      o| g                     ^M
essag/usr/local/clang/include/absl/synchronization/mutex.he:Q689u:i35eIn file included from :ts2geography/accessors.cc lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y2
F:
aIn file included from   ts2geography/accessors.ha689:l | (4c o:
 nIn file included from ess2geography/geography.hxt:p 4lc:
ihIn file included from ca../src/s2/s2polygon.hir:t*32  :
RaIn file included from eb../src/s2/base/logging.has:dl21e_:
rnIn file included from Mo/usr/local/clang/include/absl/log/check.hun:tn37eu:
xlIn file included from Ll/usr/local/clang/include/absl/log/internal/check_impl.ho :cf21ikl:
(/usr/local/clang/include/absl/log/internal/check_op.heM:,u
517t      :e| 13x                                     ^:*
  warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a:
b241s:  l22517_: | nc oonote: nexpanded from macro 'absl_nonnull'nns
utl   lc241 hm | aur#,*d  ceaobfnssiltn_ neCu olnaldabibstlile_on noC&hn enccuoklnsdlt) r
c_      Na| os                                  ^ne
ncu/usr/local/clang/include/absl/base/nullability.hml:pl241t
:r      22u| :e                     ^ I
note: mexpanded from macro 'absl_nonnull'p
l(  
241       | | #            ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n257e: 23a:b snote: lexpanded from macro 'absl_nullable'_
noIn file included from   ns2geography/build.cc257n: | u#2ldl:
e fIn file included from _iNs2geography/build.hnoe:n na4ubl:
slIn file included from l
_../src/s2/s2builderutil_s2point_vector_layer.h      n:| u                     ^25l
l:
aIn file included from b../src/s2/base/logging.hl:e21 :
_In file included from N/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                      ^:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26In file included from :
s2geography/accessors.cc/usr/local/clang/include/absl/log/internal/log_message.h::2456:
:In file included from 38s2geography/accessors.h:: 4warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2geography/geography.h:4:
  In file included from 456../src/s2/s2polygon.h | : 32 :
LIn file included from o../src/s2/base/logging.hg:M21e:
sIn file included from s/usr/local/clang/include/absl/log/check.ha:g37e:
QIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hi:e21t:
l/usr/local/clang/include/absl/log/internal/check_op.h:y518F:a17t:a lwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
ons  t518  | c h a r *c oanbsstl _cnhoanrn*u lalb sfli_lneu,l lianbtl el isn1e,, 
c      o| n                                     ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien es 2a,b
s      l| _                ^n
o/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  _note: Nexpanded from macro 'absl_nullable'o
nn  u257l | l#
d      e| f                     ^i
ne absl_nIn file included from us2geography/build.ccl:l2a:
In file included from bIn file included from s2geography/accessors-geog.ccls2geography/build.h:e:2 4:
_:
In file included from NIn file included from s2geography/accessors-geog.hu../src/s2/s2builderutil_s2point_vector_layer.h:l:4l25:
a:
In file included from bIn file included from ../src/s2/s2convex_hull_query.hl../src/s2/base/logging.h:e:25
21:
      :
In file included from | In file included from ../src/s2/s2cap.h                      ^/usr/local/clang/include/absl/log/check.h:
:3037:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from ::s2geography/accessors.cc2821::
:
2In file included from In file included from :
../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.hIn file included from ::s2geography/accessors.h2741::
:
4In file included from In file included from :
../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/strip.hIn file included from ::s2geography/geography.h2326::
:
4In file included from /usr/local/clang/include/absl/log/internal/log_message.h:
/usr/local/clang/include/absl/status/status.h:In file included from :457../src/s2/s2polygon.h67:::
3832In file included from ::
/usr/local/clang/include/absl/status/internal/status_internal.h In file included from :warning: ../src/s2/base/logging.h29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::

21In file included from :
/usr/local/clang/include/absl/strings/cord.h  In file included from :457/usr/local/clang/include/absl/log/check.h94 | ::
 37In file included from  :
/usr/local/clang/include/absl/strings/internal/cordz_info.h In file included from : /usr/local/clang/include/absl/log/internal/check_impl.h31 ::
 21 /usr/local/clang/include/absl/synchronization/mutex.h:
 :/usr/local/clang/include/absl/log/internal/check_op.h 710: :518 74: :47  : warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
    710    | 518   |    e x  p l cio cnicstto  Wncrhsiattr e*rc Mahubtaserlx_*Lno uclakl(baMbusltele x_sn&o1 ,nm unc ouAnlBsSltL  _fcIhaNaTirEl*R uNaArbLse_lA__TnmTuRslIglBa)UbT
lEe       _s| C2A                                     ^,P

T      /usr/local/clang/include/absl/base/nullability.hU| R:                                              ^E241
D:/usr/local/clang/include/absl/base/nullability.h_22:B:257Y :(note: 23texpanded from macro 'absl_nonnull':h
 i  note: sexpanded from macro 'absl_nullable'241)
) | #  
d257      e | f| i#n                                                                         ^~~~ed
 eafbisnle_ naobnsnlu_lnlu l_lNaobnlneu /usr/local/clang/include/absl/synchronization/mutex.hl_:lN
718u      :l| 35l                     ^:a
 bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      |                       ^  
718 |   exIn file included from ps2geography/accessors.ccl:i2c:
iIn file included from ts2geography/accessors.h :W4r:
iIn file included from ts2geography/geography.he:r4M:
uIn file included from t../src/s2/s2polygon.he:x32L:
oIn file included from c../src/s2/base/logging.hk:(21M:
uIn file included from t/usr/local/clang/include/absl/log/check.he:x37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o519n:n17u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
u)
        519|  |                                   ^ 
   /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  cnote: hexpanded from macro 'absl_nonnull'a
r*   241a | b#sdle_fnionnen ualbls le_xnporntneuxltl) ;_
N      o| n                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from In file included from s2geography/accessors.cc../src/s2/s1angle.h::228:
:
In file included from In file included from s2geography/accessors.h../src/s2/s2point.h::427:
:
In file included from In file included from s2geography/geography.h../src/s2/s2coder.h::423:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/status/status.h::3267:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::3794:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::520722::1374::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  520 |   c722o | n s te xcphlairc*i ta bWsrli_tneurlMluatbelxeL oCchke(cMkustterxc&a smeuc mApBfSaLl_sIeNITmEpRlN(A
L      _| A            ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Cnote: Aexpanded from macro 'absl_nullable'P
TU  R257E | D#_dBeYf(itnhei sa)b,s
l      _| n                                                                         ^~~~u
llable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/synchronization/mutex.h32::
731In file included from :../src/s2/base/logging.h35::21 :
In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21731:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 521e:x17p:l iwarning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
t W  r521i | t e r M uctoenxsLto cckh(aMru*t eaxb*s la_bnsull_lnaobnlneu lsl1 ,m uc,o ncsotn scth aCro*n daibtsilo_nn&u lcloanbdl)e
       s| 2                                  ^,

      | /usr/local/clang/include/absl/base/nullability.h                ^:
241:/usr/local/clang/include/absl/base/nullability.h22::257 :23note: : expanded from macro 'absl_nonnull'
note: expanded from macro 'absl_nullable'  
241 |   #257d | e#fdienfei naeb In file included from salbs2geography/build.cc_s:nlo_2nn:
nuIn file included from uls2geography/build.hlll:a b4_lN:
eo In file included from n_n../src/s2/s2builderutil_s2point_vector_layer.hNuu:lll25l
:
a      In file included from b| l../src/s2/base/logging.h                     ^e:

21      :
| In file included from                       ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :s2geography/accessors.cc180::242:
:In file included from  s2geography/accessors.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]4
:
In file included from s2geography/geography.h:4:
  In file included from 180../src/s2/s2polygon.h | :A32B:
SIn file included from L../src/s2/base/logging.h_:A21T:
TIn file included from R/usr/local/clang/include/absl/log/check.hI:B37U:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.h_:P21U:
R/usr/local/clang/include/absl/log/internal/check_op.hE:_521F:U47N:C Twarning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]O
N c  o521n | s t   c hcaorn*s ta bcshla_rn*o nanbuslll_ nMualkleaCbhleec ksF1a,i lcSotnrsitn gc(h
a      r| *                                         ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   s2412 | ,#
d      e| f                                              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #_dNeofninnuel la
b      s| l                     ^_
nullable _NIn file included from us2geography/build.ccIn file included from l:s2geography/accessors-geog.ccl2:a:
2bIn file included from :
ls2geography/build.hIn file included from e:s2geography/accessors-geog.h
4:      :
4| In file included from :
                      ^../src/s2/s2builderutil_s2point_vector_layer.hIn file included from 
:../src/s2/s2convex_hull_query.h25::
25In file included from In file included from :
s2geography/accessors.cc../src/s2/base/logging.hIn file included from ::../src/s2/s2cap.h221::
:
30In file included from In file included from :
s2geography/accessors.h/usr/local/clang/include/absl/log/check.hIn file included from ::../src/s2/s1angle.h437::
:
28In file included from In file included from :
s2geography/geography.h/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from ::../src/s2/s2point.h421::
:
27/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :
:../src/s2/s2polygon.hIn file included from 181:../src/s2/s2coder.h:32:25:
23:In file included from :
 ../src/s2/base/logging.hIn file included from :warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21:
:
67In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from   :/usr/local/clang/include/absl/status/internal/status_internal.h18137: | :
29 In file included from :
 /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from  : /usr/local/clang/include/absl/strings/cord.hc21:o:
94/usr/local/clang/include/absl/log/internal/check_op.hn:
:sIn file included from 522t/usr/local/clang/include/absl/strings/internal/cordz_info.h: :17a31:b:
 s/usr/local/clang/include/absl/synchronization/mutex.hwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
801::  S20522t: | a  twarning:  utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s
 *c oa  nb801ss | tl  _ ncChooannrdn*iu talibolsnl (_bsnotoaontlnu us(l*,la  bescxlpo_rnntoesnxnttu) l;lc
h       af| ur                ^n*
c )/usr/local/clang/include/absl/base/nullability.ha(:vb241os:il22d_:*n o note: naexpanded from macro 'absl_nonnull'nb
usl  ll241_  | np#urldeleaffibiixnle)i t;ayb
_su      ln_| knn                        ^oon
wnnu)l/usr/local/clang/include/absl/base/nullability.h,l
:       _241| N                   ^:o
n22n:/usr/local/clang/include/absl/base/nullability.hu :lnote: 241lexpanded from macro 'absl_nonnull':

22      :|                         ^241note: 
 | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from In file included from s2geography/build.ccs2geography/accessors-geog.cc::22:
:
In file included from In file included from s2geography/build.hs2geography/accessors-geog.h::44:
:
In file included from In file included from ../src/s2/s2builderutil_s2point_vector_layer.h../src/s2/s2convex_hull_query.h::2525:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2cap.h::2130:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s1angle.h::3728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h::2127:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h181::2358:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
181In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31s:
t/usr/local/clang/include/absl/synchronization/mutex.h :a801b:s45l:: :warning: Stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
atu  s801* |   a bCsoln_dniotninounl(lb osotla t(u*sa,b sclo_nnsotn ncuhlalr *f uanbcs)l(_vnooindn*u lalb splr_enfuilxl)a;b
i      l| i                                                         ^t
y_/usr/local/clang/include/absl/base/nullability.hu:n241k:n22o:w nnote: )expanded from macro 'absl_nonnull',

      |                                               ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e289f:i34n:e  note: aexpanded from macro 'absl_nullability_unknown'b
sl  _289n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
ility_unknown _Null_unspecifiedIn file included from 
s2geography/build.cc      :| 2                                 ^:

In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:In file included from 21s2geography/accessors-geog.cc:
:/usr/local/clang/include/absl/log/internal/check_op.h2::
189In file included from :s2geography/accessors-geog.h28::4 :
In file included from warning: ../src/s2/s2convex_hull_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/s2cap.h:  30189:
 | In file included from i../src/s2/s1angle.hn:l28i:
nIn file included from e../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.ht: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl::67::
SIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.ha:t29u:
sIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u802l:l19 :A swarning: Stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
atu  s802( | c o n s t   a b s l : : Svtoaitdu*s &a bss)l _{n
u      l| l                           ^a
bi/usr/local/clang/include/absl/base/nullability.hl:i241t:y22_:u nnote: kexpanded from macro 'absl_nonnull'n
ow  n241  | a#rdge)f;i
n      e|                    ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_289n:o34n:n unote: lexpanded from macro 'absl_nullability_unknown'l
 _  N289o | n#nduelfli
n      e|                       ^a
bsl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2In file included from :
s2geography/accessors-geog.ccIn file included from :s2geography/build.h2::
4In file included from :
s2geography/accessors-geog.hIn file included from :../src/s2/s2builderutil_s2point_vector_layer.h4::
25In file included from :
../src/s2/s2convex_hull_query.hIn file included from :../src/s2/base/logging.h25::
21In file included from :
../src/s2/s2cap.hIn file included from :/usr/local/clang/include/absl/log/check.h30::
37In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h28::
21In file included from :
../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h::27193:
:In file included from 21../src/s2/s2coder.h:: 23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h193: | 29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31::
:/usr/local/clang/include/absl/synchronization/mutex.hS:t814a:t20u:s *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n814o | n n uCloln dAistSitoant(ubso(oclo n(s*ta basbls_ln:o:nSntualtlu sfOurn<cT)>(&T *s )a b{s
l      _| n                    ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241i:l22i:t ynote: _expanded from macro 'absl_nonnull'u
nk  n241o | w#nd)e,f
i      n| e                   ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2geography/build.ccIn file included from :/usr/local/clang/include/absl/status/status.h2::
67In file included from :
s2geography/build.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h4::
29In file included from :
../src/s2/s2builderutil_s2point_vector_layer.hIn file included from :/usr/local/clang/include/absl/strings/cord.h25::
94In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h21::
31In file included from :
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/distance.cc -o s2geography/distance.o
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/synchronization/mutex.h::37814:
:In file included from 42/usr/local/clang/include/absl/log/internal/check_impl.h:: 21warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:202:46  :814  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Condition  (202b | o o le x(p*laibcsilt_ nCohnencuklOlp Mfeusnsca)g(eTB*u ialbdselr_(ncuolnlsatb iclhiatry*_ uanbksnlo_wnno)n,n
u      l| l                                         ^ 
ex/usr/local/clang/include/absl/base/nullability.hp:r289t:e34x:t )note: ;expanded from macro 'absl_nullability_unknown'

      |                                              ^  
289 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibniel iatbys_lu_nnkonnonwunl l_ N_uNloln_nuunlslp
e      c| i                     ^f
ied
      |                                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2geography/build.cc94::
2In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2geography/build.h31::
4/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 815../src/s2/s2builderutil_s2point_vector_layer.h::1625::
 In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
21:
In file included from   /usr/local/clang/include/absl/log/check.h815: | 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 209 : 15 :T *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _209n | u l lcaobnislti tcyh_aurn*k naobwsnl _anrogn)n;u
l      l|                 ^N
ew/usr/local/clang/include/absl/base/nullability.hS:t289r:i34n:g (note: )expanded from macro 'absl_nullability_unknown';

      |                 ^289
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
s  l241_ | n#udlelfaibniel iatbys_lu_nnkonnonwunl l_ N_uNloln_nuunlslp
e      c| i                     ^f
ied
      |                                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2geography/build.ccn:n2u:
lIn file included from ls2geography/build.h
:      4| :
                     ^In file included from 
../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21In file included from :
s2geography/accessors-geog.ccIn file included from :/usr/local/clang/include/absl/log/check.h2::
37In file included from :
s2geography/accessors-geog.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h4::
21In file included from :
../src/s2/s2convex_hull_query.h:/usr/local/clang/include/absl/log/internal/check_op.h25::
226In file included from :../src/s2/s2cap.h59::30 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:  27226:
 | In file included from v../src/s2/s2coder.ho:i23d:
 In file included from M/usr/local/clang/include/absl/status/status.ha:k67e:
CIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.he:c29k:
OIn file included from p/usr/local/clang/include/absl/strings/cord.hV:a94l:
uIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hS:t31r:
i/usr/local/clang/include/absl/synchronization/mutex.hn:g830(:s36t:d :warning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
str  e830a | m &   o s ,  bcooonls t( *vaobisdl*_ naobnsnlu_lnlu lfluanbcl)e( Tp*) ;a
b      s| l                                                          ^_
nul/usr/local/clang/include/absl/base/nullability.hl:a257b:i23l:i tnote: yexpanded from macro 'absl_nullable'_
un  k257n | o#wdne)f,i
n      e|                                     ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_289n:u34l:l anote: bexpanded from macro 'absl_nullability_unknown'l
e   _289N | u#ldleafbilnee
       a| b                      ^s
l_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absIn file included from ls2geography/build.cc_:n2u:
lIn file included from ls2geography/build.ha:b4i:
lIn file included from i../src/s2/s2builderutil_s2point_vector_layer.ht:y25_:
uIn file included from n../src/s2/base/logging.hk:n21o:
wIn file included from n/usr/local/clang/include/absl/log/check.h :_37N:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:_21u:
n/usr/local/clang/include/absl/log/internal/check_op.hs:p276e:c13i:f iwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d

      |                                  ^  
276 | const void* absl_nullable operaIn file included from ts2geography/accessors-geog.cco:r2<:
<In file included from (s2geography/accessors-geog.hs:t4d:
:In file included from :../src/s2/s2convex_hull_query.ho:s25t:
rIn file included from e../src/s2/s2cap.ha:m30&:
,In file included from 
../src/s2/s1angle.h      :| 28            ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
257In file included from :../src/s2/s2coder.h23::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullable':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h257: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n844u:l10l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 _  N844u | l l a b l e 
T      *|                        ^a
bsl_nonnulIn file included from ls2geography/build.cc :o2b:
jIn file included from es2geography/build.hc:t4,:

In file included from       ../src/s2/s2builderutil_s2point_vector_layer.h| :         ^25
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e277f:i50n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_  n277o | n n u l l   _ N o n n u l l 
        |                       ^ 
                  In file included from  s2geography/accessors-geog.ccc:o2n:
sIn file included from ts2geography/accessors-geog.h :v4o:
iIn file included from d../src/s2/s2convex_hull_query.h*: 25a:
bIn file included from s../src/s2/s2cap.hl:_30n:
uIn file included from l../src/s2/s1angle.hl:a28b:
lIn file included from e../src/s2/s2point.h :v27a:
lIn file included from u../src/s2/s2coder.he:)23;:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                                 ^67
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::25729::
23In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31257:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d845e:f45i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _845n | u l l a b l eb o_oNlu l(laabbslle:
:      t| y                      ^p
e_identity<T>::type::* aIn file included from bs2geography/build.ccs:l2_:
nIn file included from os2geography/build.hn:n4u:
lIn file included from l../src/s2/s2builderutil_s2point_vector_layer.h :m25e:
tIn file included from h../src/s2/base/logging.ho:d21):
(In file included from )/usr/local/clang/include/absl/log/check.h):;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                                            ^:
21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241278::2213::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241 |   #278d | ecfoinnset  avbosild_*n oanbnsull_ln u_lNloanbnluel lo
p      e| r                     ^a
tor<<(std::ostream&, std::nullpIn file included from ts2geography/accessors-geog.ccr:_2t:
)In file included from In file included from ;s2geography/accessors.ccs2geography/accessors-geog.h
::      24| :
:
            ^In file included from In file included from 
s2geography/accessors.h../src/s2/s2convex_hull_query.h::/usr/local/clang/include/absl/base/nullability.h425::
:
257In file included from In file included from :s2geography/geography.h../src/s2/s2cap.h23:::430 :
:
note: In file included from In file included from expanded from macro 'absl_nullable'../src/s2/s2polygon.h../src/s2/s1angle.h
::3228  :
:
257In file included from In file included from  | ../src/s2/base/logging.h../src/s2/s2point.h#:d:22e27:
f:
In file included from iIn file included from n/usr/local/clang/include/absl/log/log.h../src/s2/s2coder.he:: 20923a:
:
bIn file included from In file included from s/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/status/status.hl:_:20n67u:
:
lIn file included from In file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/status/internal/status_internal.ha::b6329l:
:
eIn file included from /usr/local/clang/include/absl/log/internal/vlog_config.h /usr/local/clang/include/absl/strings/cord.h:_:49N94:u:
37lIn file included from :l/usr/local/clang/include/absl/strings/internal/cordz_info.h awarning: :btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31l
:
e/usr/local/clang/include/absl/synchronization/mutex.h
   :      49850|  |                       ^:i
16n:t  warning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
gis  t850e | r A n d I n ictoinaslti zTe*( VaLbosglS_intoen*n ualbls lo_bnjoencntu,l
l       | v               ^)
;
/usr/local/clang/include/absl/base/nullability.h      :| 241                                    ^:
22: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsullIn file included from _ln os2geography/build.cc_nN:nou2nln:
luIn file included from  l_s2geography/build.hlN
:o      4n| n:
                     ^uIn file included from 
l../src/s2/s2builderutil_s2point_vector_layer.hl:
25      :
| In file included from                      ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2geography/accessors-geog.cc/usr/local/clang/include/absl/log/internal/check_op.h::2292:
:In file included from 13s2geography/accessors-geog.h:: 4warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2convex_hull_query.h:25:
In file included from   ../src/s2/s2cap.h292: | 30cIn file included from :
os2geography/accessors.ccIn file included from n:s../src/s2/s1angle.h2t::
 28cIn file included from h:
s2geography/accessors.haIn file included from :r../src/s2/s2point.h*4: :
a27bIn file included from s:
s2geography/geography.hlIn file included from :_../src/s2/s2coder.h4n::
o23In file included from n:
../src/s2/s2polygon.hnIn file included from u:l/usr/local/clang/include/absl/status/status.h32l::
 67oIn file included from :
p../src/s2/base/logging.heIn file included from :r/usr/local/clang/include/absl/status/internal/status_internal.h22a::
t29oIn file included from :
r/usr/local/clang/include/absl/log/log.h<In file included from :</usr/local/clang/include/absl/strings/cord.h209(::
s94In file included from t:
/usr/local/clang/include/absl/log/internal/log_impl.hdIn file included from ::/usr/local/clang/include/absl/strings/internal/cordz_info.h:20:b:
31aIn file included from s:
i/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/absl_vlog_is_on.hc::_85163o::
s45/usr/local/clang/include/absl/log/internal/vlog_config.ht:r: e63warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:m
<43c:h  a rwarning: 851,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] |  
 T r   a 63 i | t   s eb>xo&pol,li 
c(i      atb|  s            ^cl
o:n:s/usr/local/clang/include/absl/base/nullability.htt:yepx241ep_:ri22 dV:eLn otginote: Sexpanded from macro 'absl_nonnull'ti
yt<e  T(241>c | :o#:ntdsyetpf eci:nh:ae* r a*a bbsasbll_s_lnno_onnnonnnuunllulll  lm e_ftN)h
oo      ndn| )                                          ^u(
l)l/usr/local/clang/include/absl/base/nullability.h

:            241| | :                                            ^                     ^22

:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | In file included from i#ns2geography/build.ccdee: fai2bn:
selIn file included from  _s2geography/build.hanb:os4ln_:
nnuIn file included from ol../src/s2/s2builderutil_s2point_vector_layer.hnln :u_25Nlo:
ln In file included from n_u../src/s2/base/logging.hNlo:ln
21n      u:
| l                     ^In file included from l

/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |          In file included from  s2geography/accessors-geog.cc : 2 :
 In file included from  s2geography/accessors-geog.h : 4 :
 In file included from  ../src/s2/s2convex_hull_query.h : 25 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.h:t23 :
cIn file included from In file included from hs2geography/accessors.cc/usr/local/clang/include/absl/status/status.ha::r267*:
 :
In file included from aIn file included from s2geography/accessors.hb/usr/local/clang/include/absl/status/internal/status_internal.hs:l:_4n29:
o:
In file included from nIn file included from s2geography/geography.hn/usr/local/clang/include/absl/strings/cord.hu::l494:
l:
In file included from )In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h;../src/s2/s2polygon.h
::      3132| :
                                                ^:
/usr/local/clang/include/absl/synchronization/mutex.h
In file included from :../src/s2/base/logging.h855/usr/local/clang/include/absl/base/nullability.h:::2234241:
::In file included from  22/usr/local/clang/include/absl/log/log.hwarning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 209
note: :
expanded from macro 'absl_nonnull'In file included from   
/usr/local/clang/include/absl/log/internal/log_impl.h855: |   20 241:
  | In file included from e#/usr/local/clang/include/absl/log/absl_vlog_is_on.hxd:pe63lf:
ii/usr/local/clang/include/absl/log/internal/vlog_config.hcn:ie96t : a60Cb:os nlwarning: d_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]in
toino   nn96(u | c lo nlfsr ti _ebnNodoo lin*n nta ubllsollg_
_n      ion| ntne                     ^urln
la lc:o:nRde)g;i
s      t| e                                 ^r
An/usr/local/clang/include/absl/base/nullability.hd:I241n:i22t:i In file included from anote: s2geography/build.cclexpanded from macro 'absl_nonnull'i:
z2e  (:
241VIn file included from  | L#os2geography/build.hdge:Sfi4it:
neeIn file included from *  ../src/s2/s2builderutil_s2point_vector_layer.haab:bss25ll:
__nIn file included from noo../src/s2/base/logging.hnnn:nuu21lll:
l  In file included from _v/usr/local/clang/include/absl/log/check.hN)o:;n
37n      u:
| lIn file included from                                                            ^l/usr/local/clang/include/absl/log/internal/check_impl.h

:      21/usr/local/clang/include/absl/base/nullability.h| :
:                     ^/usr/local/clang/include/absl/log/internal/check_op.h241
::29522::20 :note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d295e | fcionnes ta bssilg_nneodn ncuhlalr *_ NaobnsnlIn file included from u_s2geography/accessors-geog.ccln:ol2
n:
      nIn file included from u| s2geography/accessors-geog.hl                     ^:l
4 :
oIn file included from p../src/s2/s2convex_hull_query.he:r25a:
tIn file included from o../src/s2/s2cap.hr:<30<:
(In file included from s../src/s2/s1angle.ht:d28::
:In file included from b../src/s2/s2point.ha:s27i:
cIn file included from _../src/s2/s2coder.ho:s23t:
rIn file included from e/usr/local/clang/include/absl/status/status.ha:m67<:
cIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.ha:r29,:
 In file included from T/usr/local/clang/include/absl/strings/cord.hr:a94i:
tIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.h>:&31,:

      /usr/local/clang/include/absl/synchronization/mutex.h| :                   ^886
:31:/usr/local/clang/include/absl/base/nullability.h :warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22:   note: 886expanded from macro 'absl_nonnull' | 
    e241x | p#ldiecfiitn eC oanbdsilt_inoonn(ncuolnls t_ NTo*n naublsll
_      n| o                     ^n
nIn file included from us2geography/accessors.ccl:l2 :
oIn file included from bs2geography/accessors.hj:)4
:
      In file included from | s2geography/geography.h                              ^:
In file included from 4/usr/local/clang/include/absl/base/nullability.hs2geography/build.cc:
::In file included from 2412../src/s2/s2polygon.h::
:22In file included from 32:s2geography/build.h:
 :note: In file included from expanded from macro 'absl_nonnull'4../src/s2/base/logging.h
:
:In file included from   22../src/s2/s2builderutil_s2point_vector_layer.h241:
: | In file included from 25#/usr/local/clang/include/absl/log/log.hd:
:eIn file included from 209f../src/s2/base/logging.h:
i:In file included from n21/usr/local/clang/include/absl/log/internal/log_impl.he:
: In file included from 20a/usr/local/clang/include/absl/log/check.h:
b:In file included from s37/usr/local/clang/include/absl/log/absl_vlog_is_on.hl:
:_In file included from 63n/usr/local/clang/include/absl/log/internal/check_impl.h:
o:/usr/local/clang/include/absl/log/internal/vlog_config.hn21:n:
119u/usr/local/clang/include/absl/log/internal/check_op.h:l:15l296: : _63warning: N:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o 
nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  u
119l | l 
         c296| o                     ^ | n
s t   c h a r *   a b s l _ n o n n u l l   c o n s t   f i l e _ ; 
        |                ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241c:o22n:s tnote:  expanded from macro 'absl_nonnull's
ig  n241e | In file included from d# s2geography/accessors-geog.ccdc:eh2fa:
irIn file included from n*s2geography/accessors-geog.h ea: b4sa:
lbIn file included from s_../src/s2/s2convex_hull_query.hln:_on25no:
nnIn file included from nu../src/s2/s2cap.hul:ll30)l:
 ;In file included from _
../src/s2/s1angle.hN      :o| 28                                                              ^n:
n
In file included from u../src/s2/s2point.hl/usr/local/clang/include/absl/base/nullability.h:l:27
241:
      :In file included from | 22../src/s2/s2coder.h                     ^::
 23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:  67241:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n896u:l31l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l896l | 
        | e                     ^x
plicit Condition(const T* In file included from as2geography/build.ccb:s2l:
_In file included from ns2geography/build.ho:n4n:
uIn file included from l../src/s2/s2builderutil_s2point_vector_layer.hl: 25o:
bIn file included from j../src/s2/base/logging.h):
21      :
| In file included from                               ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:/usr/local/clang/include/absl/log/internal/check_op.h :note: 298expanded from macro 'absl_nonnull':
22:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e298  | acbosnls_tn ounnnsuilgln e_dN ocnhnaurl*l 
a      b| s                     ^l
_nonnull operator<<(std::basic_ostream<char, Traits>&,
In file included from       s2geography/accessors-geog.cc| :                     ^2
:
In file included from s2geography/accessors-geog.h/usr/local/clang/include/absl/base/nullability.h::4241:
:In file included from 22../src/s2/s2convex_hull_query.h:: 25note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2cap.h:30  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   statiIn file included from cs2geography/build.cc :b2o:
oIn file included from ls2geography/build.h :G4u:
aIn file included from r../src/s2/s2builderutil_s2point_vector_layer.ha:n25t:
eIn file included from e../src/s2/base/logging.hd:E21q:
uIn file included from a/usr/local/clang/include/absl/log/check.hl:(37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
C/usr/local/clang/include/absl/log/internal/check_op.ho:n299d:i67t:i owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l299_ | n u l l a b l e   a , 
        |                                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n uclolnasbtl eu n_sNiuglnleadb lceh
a      r| *                      ^ 
absl_nonnuIn file included from ls2geography/accessors-geog.ccl:)2;:

In file included from       s2geography/accessors-geog.h| :                                                                  ^4
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2convex_hull_query.h::24125::
22In file included from :../src/s2/s2cap.h :note: 30expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31
:
      /usr/local/clang/include/absl/synchronization/mutex.h| :                     ^923
:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool In file included from (s2geography/build.cc*:a2b:
sIn file included from ls2geography/build.h_:n4u:
lIn file included from l../src/s2/s2builderutil_s2point_vector_layer.ha:b25l:
eIn file included from  ../src/s2/base/logging.he:v21a:
lIn file included from _/usr/local/clang/include/absl/log/check.h):(37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
Co/usr/local/clang/include/absl/log/internal/check_op.hn:d323i:t46i:o nwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _323n | o n nfurlile)n d=  vnouildl pAtbrs;l
F      o| r         ^m
at/usr/local/clang/include/absl/base/nullability.hF:l257u:s23h:( Snote: texpanded from macro 'absl_nullable'r
in  g257i | f#ydSeifnikn*e  aabbssll__nnounlnlualbll es i_nNku,l
l      a| b                                             ^l
e
      /usr/local/clang/include/absl/base/nullability.h| :                      ^241
:22: note: expanded from macro 'absl_nonnull'
In file included from   s2geography/accessors-geog.cc241: | 2#:
dIn file included from es2geography/accessors-geog.hf:i4n:
eIn file included from  ../src/s2/s2convex_hull_query.ha:b25s:
lIn file included from _../src/s2/s2cap.hn:o30n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CaIn file included from ss2geography/build.cct:A2n:
dIn file included from Cs2geography/build.ha:l4l:
MIn file included from e../src/s2/s2builderutil_s2point_vector_layer.ht:h25o:
dIn file included from (../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :C37In file included from o:
s2geography/accessors.ccnIn file included from :d/usr/local/clang/include/absl/log/internal/check_impl.h2i::
t21In file included from i:
s2geography/accessors.ho:n/usr/local/clang/include/absl/log/internal/check_op.h4*::
 428In file included from a:s2geography/geography.hb44:s:4l :
_In file included from nwarning: ../src/s2/s2polygon.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:n
32n:
uIn file included from l../src/s2/base/logging.hl  : 42822c | :
)AIn file included from ;B/usr/local/clang/include/absl/log/log.hS
:L      209_| A:
                                                 ^TIn file included from 
T/usr/local/clang/include/absl/log/internal/log_impl.hR/usr/local/clang/include/absl/base/nullability.hI:B:20U241:
T:In file included from E22/usr/local/clang/include/absl/log/absl_vlog_is_on.h_::R 63Enote: :
T/usr/local/clang/include/absl/log/internal/vlog_config.hexpanded from macro 'absl_nonnull'U:R
N133  S:_24137N | O:N#N Uwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dL
e fci  on133ne | s ita ncbhtasr l*_Rne oagnibnsustlle_lr nAo_nNndoInnnniuultllil a
lM      aik| ezC                     ^eh
(eVcLkoOgpSSittrei*n gIn file included from a(s2geography/accessors-geog.cc
b:s      2l| :
_                                           ^In file included from n
s2geography/accessors-geog.ho:n4/usr/local/clang/include/absl/base/nullability.hn:
u:In file included from l241../src/s2/s2convex_hull_query.hl:: 2225v::
) In file included from ;note: ../src/s2/s2cap.h
expanded from macro 'absl_nonnull':      
30| :
                                      ^In file included from 241
../src/s2/s1angle.h | :#28/usr/local/clang/include/absl/base/nullability.hd:
:eIn file included from 241f../src/s2/s2point.h:i:22n27:e:
  In file included from note: a../src/s2/s2coder.hexpanded from macro 'absl_nonnull'b:
s23l  :
_241In file included from n | /usr/local/clang/include/absl/status/status.ho#:dn67en:
fuIn file included from il/usr/local/clang/include/absl/status/internal/status_internal.hnl:e 29 _:
aNIn file included from bos/usr/local/clang/include/absl/strings/cord.hln:_n94nu:
olIn file included from nl/usr/local/clang/include/absl/strings/internal/cordz_info.hn
:u      31l| :
l                     ^/usr/local/clang/include/absl/synchronization/mutex.h 
:_961N:o34n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
In file included from 
s2geography/build.cc        :| 961                     ^2 | 
:
 In file included from  s2geography/build.hs:t4a:
tIn file included from i../src/s2/s2builderutil_s2point_vector_layer.hc: 25b:
oIn file included from o../src/s2/base/logging.hl: 21C:
aIn file included from l/usr/local/clang/include/absl/log/check.hl:B37y:
RIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:(21c:
o/usr/local/clang/include/absl/log/internal/check_op.hn:s429t: 31T:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n429o | n n u l lIn file included from T s2geography/accessors.ccs1:e 2lv:
f1In file included from ),s2geography/accessors.h  :T{24
 :
v      In file included from 2| s2geography/geography.h,                                 ^: 
c4o/usr/local/clang/include/absl/base/nullability.h:
n:In file included from s241../src/s2/s2polygon.ht: :c2232h::
a rnote: In file included from expanded from macro 'absl_nonnull'*../src/s2/base/logging.h
 :  a22241b:
 | sIn file included from #l/usr/local/clang/include/absl/log/log.hd_:en209of:
niIn file included from nn/usr/local/clang/include/absl/log/internal/log_impl.hue: l20alb:
 sIn file included from el/usr/local/clang/include/absl/log/absl_vlog_is_on.h_x:np63or:
nt/usr/local/clang/include/absl/log/internal/vlog_config.hne:ux157lt:l)11  :_A NBwarning: oStype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Ln
n_uA  TlT157lR | 
VI      LBoU| g                     ^TS
iEt_eN*O IaNbLsIlN_En;u
l      l| a                              ^b
le/usr/local/clang/include/absl/base/nullability.h :S241e:t22In file included from V:s2geography/accessors-geog.ccM :note: oexpanded from macro 'absl_nonnull'2d
:
uIn file included from   ls2geography/accessors-geog.he241:L | 4i#:
sdIn file included from te../src/s2/s2convex_hull_query.hHf:ei25an:
deIn file included from F ../src/s2/s2cap.hoa:brs30Tl:
e_In file included from ns../src/s2/s1angle.hot:On28nn:
luIn file included from yl../src/s2/s2point.h(l:
 27      _:
| NIn file included from           ^o../src/s2/s2coder.h
n:n23/usr/local/clang/include/absl/base/nullability.hu:
:lIn file included from 257l/usr/local/clang/include/absl/status/status.h:
:23      67:| :
                      ^In file included from note: 
/usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nullable':
29:
In file included from   /usr/local/clang/include/absl/strings/cord.h257: | 94#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hf:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a975b:s31l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab  l975e |   _ NiunIn file included from lls2geography/build.cclia:nbe2l e:
v
oIn file included from       is2geography/build.h| d:                      ^ 4
R:
eIn file included from a../src/s2/s2builderutil_s2point_vector_layer.hd:In file included from C25s2geography/accessors.cca:
:lIn file included from 2l../src/s2/base/logging.h:
b:In file included from a21s2geography/accessors.hc:
:kIn file included from 4(/usr/local/clang/include/absl/log/check.h:
T:In file included from *37s2geography/geography.h :
:aIn file included from 4b/usr/local/clang/include/absl/log/internal/check_impl.h:
s:lIn file included from _21../src/s2/s2polygon.hn:
:o/usr/local/clang/include/absl/log/internal/check_op.h32n::
n432In file included from u:../src/s2/base/logging.hl13:l:22  :
cIn file included from warning: a/usr/local/clang/include/absl/log/log.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:l
209b:
aIn file included from c  /usr/local/clang/include/absl/log/internal/log_impl.hk432:) | 20c :
ocIn file included from on/usr/local/clang/include/absl/log/absl_vlog_is_on.hns:ts63 t:
c /usr/local/clang/include/absl/log/internal/vlog_config.hh{a:
r158      *: | a15                              ^b:
s lwarning: /usr/local/clang/include/absl/base/nullability.h_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:n
241o:  n22158n: | u  lnote:  expanded from macro 'absl_nonnull'l 
  M  Va241Lk | eo#gCdhSeieftciekn*Oe  paaSbtbsrslli_n_gnn(uolTnl1nau bvll1le,   _Tv2N)o ;n
vn      2u| l,              ^l


      /usr/local/clang/include/absl/base/nullability.h      | :|             ^257                     ^
:
23/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nullable'22
:   note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#In file included from nds2geography/accessors-geog.ccee: f2ai:
bnIn file included from ses2geography/accessors-geog.hl :_a4nb:
usIn file included from ll../src/s2/s2convex_hull_query.hl_:an25bo:
lnIn file included from en../src/s2/s2cap.hu l:_l30N :
u_In file included from lN../src/s2/s1angle.hlo:an28bn:
luIn file included from le../src/s2/s2point.hl
:
      27      | :
                      ^| In file included from 
                     ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2geography/build.cc31::
2/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 979s2geography/build.h::434::
 In file included from warning: ../src/s2/s2builderutil_s2point_vector_layer.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/base/logging.h:  21979:
 | In file included from  /usr/local/clang/include/absl/log/check.h :s37t:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hi:c21 :
b/usr/local/clang/include/absl/log/internal/check_op.ho:o433l: 56A:l wwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
sTru  e433( | c o n s t   C o n d i t i o n *   a b s l _ n u l l a b l e )   {   r e t u r n   t r uceo;n s}t
       c| h                                          ^a
r*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #edxepfritneex ta)b s{l
_      n| u                                                       ^l
la/usr/local/clang/include/absl/base/nullability.hb:l241e: 22_:N unote: lexpanded from macro 'absl_nonnull'l
ab  l241e | 
#      d| e                      ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4In file included from :
s2geography/accessors-geog.ccIn file included from :../src/s2/s2builderutil_s2point_vector_layer.h2::
25In file included from :
s2geography/accessors-geog.hIn file included from :../src/s2/base/logging.h4::
21In file included from :
../src/s2/s2convex_hull_query.hIn file included from :/usr/local/clang/include/absl/log/check.h25::
37In file included from :
../src/s2/s2cap.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h30::
21In file included from :
../src/s2/s1angle.h:/usr/local/clang/include/absl/log/internal/check_op.h28::
451In file included from :../src/s2/s2point.h1::27 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :45167 | :
AIn file included from B/usr/local/clang/include/absl/status/internal/status_internal.hS:L29_:
LIn file included from O/usr/local/clang/include/absl/strings/cord.hG:_94I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hE:R31N:
A/usr/local/clang/include/absl/synchronization/mutex.hL:_1033D:E20F:I Nwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
MAKE _1033C | H E CvKo_iOdP _WSaTiRtI(NMGu_tEeXxT*E RaNb(sblo_onlo)n;n
u      l| l^ 
mu)/usr/local/clang/include/absl/log/internal/check_op.h :{449
:      31| :                   ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/base/nullability.h
:241:22  :449  | note:  expanded from macro 'absl_nonnull' 
ex  t241e | r#nd etfeimnpel aatbes lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll MakeCheckOpString(   \
      | In file included from                               ^s2geography/accessors-geog.cc
:2:
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2geography/accessors-geog.h241::422:
:In file included from  ../src/s2/s2convex_hull_query.h:note: 25expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2cap.h  :24130 | :
#In file included from d../src/s2/s1angle.he:f28i:
nIn file included from e../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                     ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/build.cc
:2:
In file included from s2geography/build.h :10504 | :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.hb:o25o:
lIn file included from  ../src/s2/base/logging.hW:a21i:
tIn file included from W/usr/local/clang/include/absl/log/check.hi:t37h:
TIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hm:e21o:
u/usr/local/clang/include/absl/log/internal/check_op.ht:(451M:u1t:e xwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l450_:n25o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
l   m450u | ,   a b s l :x:,D uxr,a tcIn file included from ios2geography/accessors.ccon:ns2 t:
t In file included from ics2geography/accessors.hmh:ae4or:
u*In file included from t s2geography/geography.h)a:b 4s{:

lIn file included from _      ../src/s2/s2polygon.hn| o:n                              ^34n
:
uIn file included from /usr/local/clang/include/absl/base/nullability.hl../src/s2/mutable_s2shape_index.hl::)24130
::
      22In file included from | :                        ^/usr/local/clang/include/absl/container/btree_map.h 
note: :expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h66
::
241  In file included from :241/usr/local/clang/include/absl/container/internal/btree.h22 | :#:70d :
eIn file included from note: f/usr/local/clang/include/absl/container/internal/layout.hexpanded from macro 'absl_nonnull'i:n
198e:
   In file included from 241a/usr/local/clang/include/absl/strings/str_cat.h | b:#s116ld:
_eIn file included from nf/usr/local/clang/include/absl/strings/internal/stringify_sink.hoi:nn23ne:
u /usr/local/clang/include/absl/strings/numbers.hla:lb66 s:_l41N_:on nonwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]un
lull
   l      66 |  |                      ^ _
 N o n n u l l 
        |                       ^ 
           In file included from  s2geography/accessors-geog.cc : 2 :
 In file included from  s2geography/accessors-geog.hi:n4t:
_In file included from t../src/s2/s2convex_hull_query.hy:p25e:
*In file included from  ../src/s2/s2cap.ha:b30s:
lIn file included from _../src/s2/s1angle.hnIn file included from :os2geography/build.cc28n::
n2In file included from u:
../src/s2/s2point.hlIn file included from :ls2geography/build.h27 ::
o4In file included from u:
../src/s2/s2coder.htIn file included from :)../src/s2/s2builderutil_s2point_vector_layer.h23;::

25In file included from       :
/usr/local/clang/include/absl/status/status.h| In file included from :                                        ^../src/s2/base/logging.h67
::
21In file included from /usr/local/clang/include/absl/base/nullability.h:
/usr/local/clang/include/absl/status/internal/status_internal.h:In file included from :241/usr/local/clang/include/absl/log/check.h29:::
2237In file included from ::
/usr/local/clang/include/absl/strings/cord.h In file included from note: :expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h94
::
  21In file included from 241:
/usr/local/clang/include/absl/strings/internal/cordz_info.h | /usr/local/clang/include/absl/log/internal/check_op.h:#:31d452:
e:/usr/local/clang/include/absl/synchronization/mutex.hf1:i:1069n :ewarning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
a bwarning: s  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l452
_ | nA Bo1069nS | n Lu _lLblOo oG_lN _oWInNaniTutlEWliR
tN      hA| LD                     ^_e
aDdElFiInNeE(_MMuAtKeEx_*C HaEbCsKl__OIn file included from nPs2geography/accessors.cco_:nS2Tn:
uRIn file included from lIs2geography/accessors.hlN: G4m_uE:
,XIn file included from  Ts2geography/geography.haE:bR4sN:
l(In file included from :i../src/s2/s2polygon.h:n:Tt34i6:
m4In file included from e_../src/s2/mutable_s2shape_index.h t:d)30e;:
a
dIn file included from l      /usr/local/clang/include/absl/container/btree_map.hi| :n^66e
:
)In file included from /usr/local/clang/include/absl/log/internal/check_op.h /usr/local/clang/include/absl/container/internal/btree.h{::
44970      ::
| 31In file included from                                ^:/usr/local/clang/include/absl/container/internal/layout.h
 :/usr/local/clang/include/absl/base/nullability.hnote: 198expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'::

241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22  ::449116  | :
note:  In file included from expanded from macro 'absl_nonnull' /usr/local/clang/include/absl/strings/internal/stringify_sink.he
:x23t  e:
241r/usr/local/clang/include/absl/strings/numbers.h | n:# 77dt:ee61fm:ip nwarning: letype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a 
atbes   l 77_c | n[oo[nnnnsoudltils  c_acNrhoda]rn]n* ub lolaob
ls       l| S_i                     ^mn
opnlneuAltlo fM(aakbesClh:e:csktOrpiSnIn file included from tgs2geography/accessors-geog.cc_r:vi2in:
egIn file included from w(s2geography/accessors-geog.h  :s 4t :
r\In file included from ,
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o
In file included from a../src/s2/s2cap.h/usr/local/clang/include/absl/base/nullability.ht:*: 30a241:
b:In file included from s22../src/s2/s1angle.hl::_ 28nnote: :
oexpanded from macro 'absl_nonnull'In file included from n
../src/s2/s2point.hn:  u27l241:
l | In file included from # ../src/s2/s2coder.hdoe:fui23tn:
)eIn file included from ; /usr/local/clang/include/absl/status/status.h
a:      b67| s:
                                                            ^lIn file included from 
_/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.hn::o29241n:
:nIn file included from 22u/usr/local/clang/include/absl/strings/cord.h:l: l94note:  expanded from macro 'absl_nonnull':
_
In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.h  o:241n31 | n:
#u/usr/local/clang/include/absl/synchronization/mutex.hdl:el1088
f:i      35n| :e                     ^  
warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_ n1088o | n n uvloliIn file included from  d_s2geography/build.cc NE:on2na:
nbuIn file included from lles2geography/build.hlD
:e      4b| u:
                     ^gIn file included from 
L../src/s2/s2builderutil_s2point_vector_layer.ho:g25(:
cIn file included from o../src/s2/base/logging.hn:s21t:
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*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:In file included from b21s2geography/accessors.ccs:
:/usr/local/clang/include/absl/log/internal/check_op.hl2_::
n452In file included from u:s2geography/accessors.hl1:l:4a :
bwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ls2geography/geography.he
: 4n/usr/local/clang/include/absl/log/internal/check_op.h:
a:In file included from m450../src/s2/s2polygon.he::)2534;::

 In file included from       ../src/s2/mutable_s2shape_index.hnote: | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':                                  ^
30
:
  In file included from /usr/local/clang/include/absl/base/nullability.h450/usr/local/clang/include/absl/container/btree_map.h: | :257 66: :
 23In file included from  : /usr/local/clang/include/absl/container/internal/btree.h  :note: x70expanded from macro 'absl_nullable',:

 In file included from   x/usr/local/clang/include/absl/container/internal/layout.h,257 : | c198#o:
dnIn file included from es/usr/local/clang/include/absl/strings/str_cat.hft:i 116nc:
ehIn file included from  a/usr/local/clang/include/absl/strings/internal/stringify_sink.har:b*23s :
la/usr/local/clang/include/absl/strings/numbers.h_b:ns88lu:_l62ln:ao bnwarning: lntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eu
 l_lN   u)88l
 | l[a      [bn| lo                        ^ed

i      s| c/usr/local/clang/include/absl/base/nullability.h                      ^a:
r241d:]22]:  bnote: oexpanded from macro 'absl_nonnull'o
l   In file included from S241s2geography/accessors-geog.cci | :m#2pd:
leIn file included from efs2geography/accessors-geog.hiA:tn4oe:
d In file included from a(../src/s2/s2convex_hull_query.hab:sb25ls_:
lnIn file included from :o../src/s2/s2cap.h:n:sn30ut:
rlIn file included from il../src/s2/s1angle.hn :g_28_N:
voIn file included from in../src/s2/s2point.hne:uwl27l :

sIn file included from t      ../src/s2/s2coder.hr| :,                     ^23 
:
dIn file included from o/usr/local/clang/include/absl/status/status.hu:b67l:
eIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.ho:uIn file included from 1091ts2geography/build.cc:):26;2
::
       In file included from warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/build.h                                                             ^
:
4 :
/usr/local/clang/include/absl/base/nullability.h1091In file included from : | ../src/s2/s2builderutil_s2point_vector_layer.h241 :: 2522b:
:oIn file included from  o../src/s2/base/logging.hnote: lexpanded from macro 'absl_nonnull': 
W21a  i:
241tIn file included from  | C#/usr/local/clang/include/absl/log/check.hod:mem37foi:
nn(eIn file included from M u/usr/local/clang/include/absl/log/internal/check_impl.hatb:es21xl*:
_ /usr/local/clang/include/absl/log/internal/check_op.hnao:bns453nlu:_l1nlo: n_ nNwarning: uotype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lnl
n umlu  lt
453e      x | | ,A                     ^
B
      S| L                         ^_
LO/usr/local/clang/include/absl/base/nullability.hG:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_In file included from   Ds2geography/accessors.cc241E: | F2#I:
dNIn file included from eEs2geography/accessors.hf_:iM4nA:
eKIn file included from  Es2geography/geography.h_a:bC4sHl:
E_In file included from nC../src/s2/s2polygon.hoKn:_n34uO:
lPIn file included from l_../src/s2/mutable_s2shape_index.h S:T_30NR:
oIIn file included from nN/usr/local/clang/include/absl/container/btree_map.hnG:_u66El:
lXIn file included from 
T/usr/local/clang/include/absl/container/internal/btree.h      E:| R70                     ^N:

(In file included from u/usr/local/clang/include/absl/container/internal/layout.hi:n198t:
6In file included from 4/usr/local/clang/include/absl/strings/str_cat.h_:t116):
;In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23^:

/usr/local/clang/include/absl/strings/numbers.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.hs2geography/accessors-geog.cc98:::449260::
:31In file included from  :s2geography/accessors-geog.hwarning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 4
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from    ../src/s2/s2convex_hull_query.h98  : | 44925[ | :
[ In file included from  n../src/s2/s2cap.heo:xd30it:
seIn file included from cr../src/s2/s1angle.han:r 28dt:
]eIn file included from ]m../src/s2/s2point.h p:bl27aot:
oeIn file included from l ../src/s2/s2coder.h cS:oi23mn:
psIn file included from lt/usr/local/clang/include/absl/status/status.he :Ac67ht:
oaIn file included from br/usr/local/clang/include/absl/status/internal/status_internal.h(*: a29ba:
sbIn file included from ls/usr/local/clang/include/absl/strings/cord.h:l::_94sn:
toIn file included from rn/usr/local/clang/include/absl/strings/internal/cordz_info.hin:nu31gl:
_/usr/local/clang/include/absl/synchronization/mutex.hlv:i 1093eM:wa46 k:se tCwarning: rhtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],e
 cbk oO1093op | lS * t varobiisdnl g_R(ne omn on vu\el(
lb       aos| u                              ^et_
)i;n/usr/local/clang/include/absl/base/nullability.h
t:      e241| r                                                           ^:n
a22l/usr/local/clang/include/absl/base/nullability.h:::: 241Pnote: :eexpanded from macro 'absl_nonnull'22r
:T h  note: rexpanded from macro 'absl_nonnull'241e
a | d  #S241yd | n#ecdhfe*if inaenbe s laa_bbnssolln_n_nuonlnlno unsnl)lu; 
l_      lN| o                                              ^n_
nNu/usr/local/clang/include/absl/base/nullability.hlo:ln241n
:u      l22| l:                     ^
 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define In file included from as2geography/build.ccb:s2l:
_In file included from ns2geography/build.hoIn file included from :ns2geography/accessors.ccn4:u:
2lIn file included from :
l../src/s2/s2builderutil_s2point_vector_layer.hIn file included from  :s2geography/accessors.h_25:N:
4oIn file included from :
n../src/s2/base/logging.hIn file included from n:s2geography/geography.hu21:l:
4lIn file included from :

/usr/local/clang/include/absl/log/check.hIn file included from       :../src/s2/s2polygon.h| 37:                     ^:
34
In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/mutable_s2shape_index.h21::
30/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 453/usr/local/clang/include/absl/container/btree_map.h::166::
 In file included from warning: /usr/local/clang/include/absl/container/internal/btree.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
70:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h450::19825:
:In file included from  /usr/local/clang/include/absl/strings/str_cat.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h  :45023 | :
 /usr/local/clang/include/absl/strings/numbers.h : 112 : 44 :x ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
, c  o112n | s t   c h a r *   a b s l _ n o n n u l l ) 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :i nnote: texpanded from macro 'absl_nonnull'_
ty  p241e | *# daebfsiln_en oanbnsull_ln oonuntu)l;l
       _| N                                           ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2geography/build.cc_:N2o:
nIn file included from ns2geography/build.hu:l4l:

In file included from       ../src/s2/s2builderutil_s2point_vector_layer.h| :                     ^In file included from 25
s2geography/accessors-geog.cc:
:In file included from 2../src/s2/base/logging.h:
:In file included from 21s2geography/accessors-geog.h:
:In file included from 4/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2convex_hull_query.h:
:In file included from 25/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2cap.hIn file included from :
:s2geography/accessors.cc/usr/local/clang/include/absl/log/internal/check_op.h30:::
2454In file included from :
:../src/s2/s1angle.hIn file included from 1:s2geography/accessors.h:28: :
4In file included from warning: :
../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :
s2geography/geography.h27::
In file included from ../src/s2/s2coder.h:23:
4  In file included from :
454/usr/local/clang/include/absl/status/status.hIn file included from  | :A../src/s2/s2polygon.h67B::
S34LIn file included from _:
/usr/local/clang/include/absl/status/internal/status_internal.hLIn file included from O:G../src/s2/mutable_s2shape_index.h_29:I:
30NIn file included from :
T/usr/local/clang/include/absl/strings/cord.hEIn file included from R:/usr/local/clang/include/absl/container/btree_map.hN94:A:
L66In file included from _:
/usr/local/clang/include/absl/strings/internal/cordz_info.hDIn file included from :E/usr/local/clang/include/absl/container/internal/btree.h31F::
I/usr/local/clang/include/absl/synchronization/mutex.h70N::
E1109_In file included from :M/usr/local/clang/include/absl/container/internal/layout.h34A::K198E :
warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from C
/usr/local/clang/include/absl/strings/str_cat.hH:E116 C:
K1109In file included from _ | /usr/local/clang/include/absl/strings/internal/stringify_sink.h O: P23e_:
xS/usr/local/clang/include/absl/strings/numbers.hpT:lR116iI:cN55Gi:t_  Ewarning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]MT
uEtRe  xN116L( | of cl ko M aa ty ) b; e
 (       M | u t^ e 
x */usr/local/clang/include/absl/log/internal/check_op.h   :a 449b :s l31 _ :n u  l note: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' a 
b l e     m449 u  | ) 
         e | x                                  ^ t
 e r/usr/local/clang/include/absl/base/nullability.han:b 257ts:le23:m:p:l ianote: tneexpanded from macro 'absl_nullable't 
1c  o22578n | *s# dta ebfcsihln_aen oranbn*su ll_aln buoslull_ta)nb;o
ln      ne|  u                                                      ^_l
Nlu /usr/local/clang/include/absl/base/nullability.hlM:la241ak:be22lC:eh 
enote:       expanded from macro 'absl_nonnull'c| 
                      ^k
  O241p | S#tdreifnign(e   a b\s
l      _| n                              ^o
nn/usr/local/clang/include/absl/base/nullability.huIn file included from :ls2geography/accessors-geog.ccl241: :2_22:
N:In file included from o s2geography/accessors-geog.hn:nnote: 4uexpanded from macro 'absl_nonnull':
l
In file included from l../src/s2/s2convex_hull_query.h
  :      24125|  | :
                     ^#In file included from 
d../src/s2/s2cap.he:f30i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:lIn file included from 23ls2geography/accessors.cc :
_:In file included from N2/usr/local/clang/include/absl/status/status.ho:
:nIn file included from 67ns2geography/accessors.hu:
:lIn file included from 4l/usr/local/clang/include/absl/status/internal/status_internal.h:

:In file included from       29s2geography/geography.h| :
:                     ^In file included from 4
/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2polygon.h:
:In file included from 34/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from In file included from 31s2geography/build.cc../src/s2/mutable_s2shape_index.h:
::/usr/local/clang/include/absl/synchronization/mutex.h230::
:
1117In file included from In file included from :s2geography/build.h/usr/local/clang/include/absl/container/btree_map.h34:::466 :
warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from ../src/s2/s2builderutil_s2point_vector_layer.h
/usr/local/clang/include/absl/container/internal/btree.h::2570 :
:
1117In file included from In file included from  | ../src/s2/base/logging.h/usr/local/clang/include/absl/container/internal/layout.h :: 21198e:
:
xIn file included from In file included from p/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/str_cat.hl::i37116c:
:
iIn file included from In file included from t/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h ::M2123u:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/numbers.ht::e454118x::L156o::c  kwarning: warning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a

yb/usr/local/clang/include/absl/log/internal/check_op.he  (:118M450 | u: t 25e x :*    anote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b s
 l _   n u450 l  | l  a  b l  e    m  u  ,x  , c  ox n, s  t c  Co on n sd ti t  c ih ao rn *&a  bcsaobln:sdl:)_un
oin      nn| t                                 ^u1
2l8/usr/local/clang/include/absl/base/nullability.h*l: )257
a:b      23s| :l                        ^ _
note: nexpanded from macro 'absl_nullable'o/usr/local/clang/include/absl/base/nullability.h
n:n  u241257l: | l#22 do:euft i)note: n;eexpanded from macro 'absl_nonnull'
 
      a| b                                                         ^s241
l | /usr/local/clang/include/absl/base/nullability.h_#nd:ue241lf:li22an:be lnote: e expanded from macro 'absl_nonnull' a
_b  Ns241ul | l_#ldnaebofnliennu
le       l| a                      ^ b
s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:In file included from 25s2geography/build.cc:
:In file included from 2../src/s2/s2cap.h:
:In file included from 30s2geography/build.h:
:In file included from 4../src/s2/s1angle.h:
:In file included from 28../src/s2/s2builderutil_s2point_vector_layer.h:
:In file included from 25../src/s2/s2point.h:
:In file included from 27../src/s2/base/logging.h:
:In file included from 21../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/log/internal/check_op.h29::
455In file included from :/usr/local/clang/include/absl/strings/cord.h1::94 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h455: | 1132A:B10S:L _warning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]O
G_I N1132T | E R NIn file included from MAs2geography/accessors.ccLu:t_2eD:
ExFIn file included from *Is2geography/accessors.h N:aE4b_:
sMIn file included from lAs2geography/geography.h_K:nE4u_:
lCIn file included from lH../src/s2/s2polygon.haE:bC34Kl_:
eOIn file included from  P../src/s2/mutable_s2shape_index.h_c:So30nT:
sRIn file included from tI N/usr/local/clang/include/absl/container/btree_map.hmG:u_66_E:
X;In file included from T
/usr/local/clang/include/absl/container/internal/btree.hE      R:| N70         ^(:
d
oIn file included from u/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.hb::l257e198:):
23;In file included from :
/usr/local/clang/include/absl/strings/str_cat.h       note: :expanded from macro 'absl_nullable'| 116
^:

  In file included from 257/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h | ::#44923d::
e31/usr/local/clang/include/absl/strings/numbers.hf::i 152nnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e37 
:a b  warning: s449type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l | 
_ n   eux152lt | levaorbinld e t P_eumNtpuTllwaloatDbielge i
tc      so| (                      ^nu
sitn tc3h2a_rt*  ia,b sclh_anro*n naublsll _MnaoknenCuhlelc kbOupfS)t;r
i      n| g                                    ^(
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                              ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.hIn file included from :s2geography/accessors.cc21::
2In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :s2geography/accessors.h37::
4In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2geography/geography.h21::
4/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 455../src/s2/s2polygon.h::134::
 In file included from ../src/s2/mutable_s2shape_index.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]30
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::45066::
25In file included from :/usr/local/clang/include/absl/container/internal/btree.hIn file included from  :s2geography/accessors-geog.cc70note: ::
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'2In file included from 
:
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :  s2geography/accessors-geog.h198450::
 | 4 In file included from :
 /usr/local/clang/include/absl/strings/str_cat.hIn file included from  :../src/s2/s2convex_hull_query.h 116: :
 25xIn file included from ,:
/usr/local/clang/include/absl/strings/internal/stringify_sink.h In file included from :x../src/s2/s2cap.h23,::
 /usr/local/clang/include/absl/strings/numbers.h30c:o:
156nIn file included from :s../src/s2/s1angle.h55t:: 28 c:
hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]rIn file included from 
*../src/s2/s2point.h :a27  b:
s156In file included from l | ../src/s2/s2coder.hb_:on23oo:
lnIn file included from  n/usr/local/clang/include/absl/status/status.hsu:al67fl:
e)In file included from _
/usr/local/clang/include/absl/status/internal/status_internal.hs      :t| 29r                        ^:
t
In file included from o/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h8:_:b94a241:
s:In file included from e22/usr/local/clang/include/absl/strings/internal/cordz_info.h(::a 31bnote: :
sexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.hl
::1146:  :s2417t | :r# idwarning: ne'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]gf
_ivnie e 1146wa |   bt sel x_ t n, o tinhnnitusl8)_l)t  *A_ BaNSobLns_lEn_XnuCoLlnUln
SuI      lVl| E                      ^_vL
aOlCuKe_,F
U      N| C                                                      ^T
IO/usr/local/clang/include/absl/base/nullability.hN:(241m:u22):
       | note:       ^~~~expanded from macro 'absl_nonnull'In file included from 

s2geography/build.cc:2  :
241In file included from  | s2geography/build.h#:d4e:
fIn file included from i../src/s2/s2builderutil_s2point_vector_layer.hn:e25 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h /usr/local/clang/include/absl/synchronization/mutex.h:_:N211153o:
:n/usr/local/clang/include/absl/log/internal/check_op.h39n::u456 l:warning: l1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
       | warning:                       ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1153

 |     e456x | pAlBiScLi_tL ORGe_lIeNaTsIn file included from Eas2geography/accessors.ccRb:lN2AeL:
M_In file included from Dus2geography/accessors.hEtF:IeN4xE:
L_In file included from oMs2geography/geography.hcA:kK4(E:
M_In file included from uC../src/s2/s2polygon.htHe:Ex34*C:
K In file included from a_../src/s2/mutable_s2shape_index.hObP:s_30SlT:
_RIn file included from InN/usr/local/clang/include/absl/container/btree_map.hGo:_n66nE:
uXIn file included from lT/usr/local/clang/include/absl/container/internal/btree.hElR: N70(m:
ucIn file included from h)/usr/local/clang/include/absl/container/internal/layout.ha
:r      198)| :
;                                      ^In file included from 

/usr/local/clang/include/absl/strings/str_cat.h      :| /usr/local/clang/include/absl/base/nullability.h116^::

241In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/log/internal/check_op.h22:::23449 :
:note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull'31:
:158   :note: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'57 | 
:# d  warning: e449type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f | 
i n e  e 158xa | tbbseolro_nln  ostnanefmuepl_lls at_rtNeto ocn1n6oun_lbslta
 s      ce| h(                     ^aa
brs*l :a:bsstlr_innogn_nvuilelw  MtaekxetC,h eiIn file included from cns2geography/accessors-geog.cctk:1O26p:
_SIn file included from tts2geography/accessors-geog.h*r: i4an:
bgsIn file included from (l../src/s2/s2convex_hull_query.h _ :n 25o\:

nIn file included from n      ../src/s2/s2cap.hu| :                              ^l30l
:
 In file included from v/usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.ha::l24128u::
e22In file included from ,:../src/s2/s2point.h
 :      note: 27expanded from macro 'absl_nonnull'| :
                                                        ^
In file included from 
../src/s2/s2coder.h  :24123/usr/local/clang/include/absl/base/nullability.h | :
:#In file included from d241e/usr/local/clang/include/absl/status/status.h:f:22i67n::
e In file included from  note: /usr/local/clang/include/absl/status/internal/status_internal.haexpanded from macro 'absl_nonnull':b
29s:
l  In file included from _241/usr/local/clang/include/absl/strings/cord.hn | o:#n94nd:
ueIn file included from lf/usr/local/clang/include/absl/strings/internal/cordz_info.hil: n_31eN:
o n/usr/local/clang/include/absl/synchronization/mutex.han:bu1158sl:ll53_
:n       o| warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]                     ^n
u
ll  1158_ | N oIn file included from  ns2geography/build.cc n:u l2 l :

MIn file included from       us2geography/build.h| t:                     ^e4
x:
&In file included from  ../src/s2/s2builderutil_s2point_vector_layer.hm:u25 :
AIn file included from B../src/s2/base/logging.hS:L21_:
IIn file included from N/usr/local/clang/include/absl/log/check.hT:E37R:
In file included from NIn file included from s2geography/accessors.ccA/usr/local/clang/include/absl/log/internal/check_impl.h:L:2_21:
A:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hTs2geography/accessors.hT::R4564I::
B1In file included from U:s2geography/geography.hT :Ewarning: 4_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
C
In file included from A../src/s2/s2polygon.h/usr/local/clang/include/absl/log/internal/check_op.hP:T:34U450:
R:In file included from E25../src/s2/mutable_s2shape_index.hD::_ 30Bnote: :
Yexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from (
/usr/local/clang/include/absl/container/btree_map.ht:  h66i450:
s | In file included from  ) /usr/local/clang/include/absl/container/internal/btree.h, :
 70       :
 | In file included from x                                                    ^~~~/usr/local/clang/include/absl/container/internal/layout.h,
 :x198,:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.ho:n116s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:h23a:
r/usr/local/clang/include/absl/strings/numbers.h*: 160a:b57s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
/usr/local/clang/include/absl/synchronization/mutex.hn:  n1166160u: | l39bl:)o
 o      warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]|  
s                        ^a
f e/usr/local/clang/include/absl/base/nullability.h1166_: | s 241t r:etx22op3l:2i_c bianote: tsexpanded from macro 'absl_nonnull' e
R(e  alb241es | al#sd:ae:fbsliternMeiun tgea_xbvsLlioe_cnwok (ntMenuuxlttel,x  *_i nNatobn3sn2ul_l_tln*
o n      anb| usl                     ^ll_
 nmoun,n ucloln svta lCuoen,d
i      t| i                                                        ^o
n&/usr/local/clang/include/absl/base/nullability.h :c241o:nIn file included from 22ds2geography/build.cc:): 
2note:       expanded from macro 'absl_nonnull':
| 
In file included from                                       ^s2geography/build.h  
:2414 | /usr/local/clang/include/absl/base/nullability.h#:
:dIn file included from 241e../src/s2/s2builderutil_s2point_vector_layer.h:f:22i25:n:
 eIn file included from note:  expanded from macro 'absl_nonnull'../src/s2/base/logging.ha
b:s  21l241:
_ | nIn file included from #o/usr/local/clang/include/absl/log/check.hdne:nf37ui:
lnIn file included from le /usr/local/clang/include/absl/log/internal/check_impl.h _aN:bos21nl:
n_u/usr/local/clang/include/absl/log/internal/check_op.hnlo:ln457
n:      u1| l                     ^:l
  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l457l | 
A      B| S                     ^L
_In file included from Ls2geography/accessors.ccO:G2_:
IIn file included from Ns2geography/accessors.hT:E4R:
NIn file included from As2geography/geography.hL:_4D:
EIn file included from F../src/s2/s2polygon.hI:N34E:
_In file included from M../src/s2/mutable_s2shape_index.hA:K30E:
_In file included from C/usr/local/clang/include/absl/container/btree_map.hH:E66C:
KIn file included from _/usr/local/clang/include/absl/container/internal/btree.hO:P70_:
In file included from SIn file included from Ts2geography/accessors-geog.cc/usr/local/clang/include/absl/container/internal/layout.hR::I2198N:
:
GIn file included from In file included from _s2geography/accessors-geog.h/usr/local/clang/include/absl/strings/str_cat.hE::X4T116:
E:
RIn file included from NIn file included from ../src/s2/s2convex_hull_query.h(/usr/local/clang/include/absl/strings/internal/stringify_sink.h:u:n2523s:
i:
In file included from /usr/local/clang/include/absl/strings/numbers.hg../src/s2/s2cap.h:n:162e30:d:
57 In file included from :c../src/s2/s1angle.h h:awarning: 28rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
)
In file included from ;../src/s2/s2point.h
:        27162| :
 | ^In file included from b
../src/s2/s2coder.ho:/usr/local/clang/include/absl/log/internal/check_op.ho23l::
 449In file included from s:/usr/local/clang/include/absl/status/status.ha31:f:67e :
_note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's/usr/local/clang/include/absl/status/internal/status_internal.ht
:r29t:
  oIn file included from 6449/usr/local/clang/include/absl/strings/cord.h4 | : _ 94eb:
axIn file included from st/usr/local/clang/include/absl/strings/internal/cordz_info.hee(r:an31b :
t/usr/local/clang/include/absl/synchronization/mutex.hse:lm1179:p::l10sa:tt rewarning: i type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nc
go_ nv1179sit |  e cw h Mature*tx etxa,b*  isanlbts_6nlo4n_n_ntuu*ll ll aabMbsallek_ nemouCn_nh;u
el      lc|  k         ^vO
apl/usr/local/clang/include/absl/base/nullability.huS:et257,r:
i23      n:| g                                                         ^(note: 
expanded from macro 'absl_nullable' 
/usr/local/clang/include/absl/base/nullability.h   : 257241\ | :#
22d      :e|  fnote:                               ^expanded from macro 'absl_nonnull'i

n/usr/local/clang/include/absl/base/nullability.he  : 241a241 | b:#sd22le_:fni unote: nlexpanded from macro 'absl_nonnull'el 
aabb  lse241l  | __n#Nodunlenlufailnblel e _
aN      ob| ns                      ^ln_
unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from In file included from s2geography/accessors.ccs2geography/build.h::24:
:
In file included from In file included from s2geography/accessors.h../src/s2/s2builderutil_s2point_vector_layer.h::425:
:
In file included from In file included from s2geography/geography.h../src/s2/base/logging.h::421:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/log/check.h::3437:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/check_impl.h::3021:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::45766::
1In file included from :/usr/local/clang/include/absl/container/internal/btree.h :warning: 70type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/log/internal/check_op.h::198450:
:In file included from 25/usr/local/clang/include/absl/strings/str_cat.h:: 116note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
450/usr/local/clang/include/absl/strings/numbers.h | : 165 : 39 :   warning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 x,   c165o | n s t   c h a r *   a b s l _ n o n n u l l ) 
       a| b                        ^s
l:/usr/local/clang/include/absl/base/nullability.h::i241n:t221:2 8note: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  avbasllu_en,o ninnutl lb a_sNeo)n;n
u      l| l                                      ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:In file included from 30s2geography/accessors.cc:
:In file included from 2../src/s2/s1angle.h:
:In file included from 28s2geography/accessors.h:
:In file included from 4../src/s2/s2point.h:
:In file included from 27s2geography/geography.h:
:In file included from 4../src/s2/s2coder.h:
:In file included from 23../src/s2/s2polygon.h:
In file included from :In file included from s2geography/build.cc34/usr/local/clang/include/absl/status/status.h::
:2In file included from 67:
../src/s2/mutable_s2shape_index.h:
In file included from :In file included from s2geography/build.h30/usr/local/clang/include/absl/status/internal/status_internal.h::
:4In file included from 29:
/usr/local/clang/include/absl/container/btree_map.h:
In file included from :In file included from ../src/s2/s2builderutil_s2point_vector_layer.h66/usr/local/clang/include/absl/strings/cord.h::
:25In file included from 94:
/usr/local/clang/include/absl/container/internal/btree.h:
In file included from :In file included from ../src/s2/base/logging.h70/usr/local/clang/include/absl/strings/internal/cordz_info.h::
:21In file included from 31:
/usr/local/clang/include/absl/container/internal/layout.h:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/log/check.h:198:1212:
37:In file included from :
52/usr/local/clang/include/absl/strings/str_cat.hIn file included from ::/usr/local/clang/include/absl/log/internal/check_impl.h 116:warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21In file included from 
:
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/log/internal/check_op.h23: :
458/usr/local/clang/include/absl/strings/numbers.h1212:: | 1b168o::o 59lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  C
warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
d  i458t   | iA168oB | nbS:o:LoC_la LsstOaAGfne_dI_CsNatlTrlEtRMoNeutA1Lh6o__dDbE(aFcsIoeNnE(sa_tbM sAlC:KoE:n_sdtCirHtiEinCogKn__*Ov Pia_ebwSsT lRt_IenxNoGtn,_n EuuliXln tTc1)6E _R{t
N*      ( c| a                                                   ^ob
nss/usr/local/clang/include/absl/base/nullability.hlt:_ 241snt:od22n::n: uslnote: ltexpanded from macro 'absl_nonnull'r 
via  nl241gu | &e#),d;
e
      f      | i                                                          ^| n
^e/usr/local/clang/include/absl/base/nullability.h
 :a241b/usr/local/clang/include/absl/log/internal/check_op.h:s:22l449:_: n31note: oexpanded from macro 'absl_nonnull':n
n   unote: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l | l
# d_eN  foi449nn | n e u leaxlbt
se      rl| n_                      ^nt
eomnpnlualtle  _cNoonnsntu lclh
a      r| *                     ^ 
absl_nonnull MakeCheckOpStrIn file included from is2geography/accessors.ccn:g2(:
 In file included from  s2geography/accessors.h :\4
:
      In file included from In file included from | s2geography/accessors-geog.ccs2geography/geography.h                              ^::
24:
:
/usr/local/clang/include/absl/base/nullability.hIn file included from In file included from :s2geography/accessors-geog.h../src/s2/s2polygon.h241:::43422:
:
:In file included from In file included from  ../src/s2/s2convex_hull_query.h../src/s2/mutable_s2shape_index.h:note: :25expanded from macro 'absl_nonnull'30:

:
In file included from In file included from ../src/s2/s2cap.h  /usr/local/clang/include/absl/container/btree_map.h:241:30 | 66:
#:
dIn file included from In file included from e../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/btree.hf::i2870n:
:
eIn file included from In file included from  ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/layout.ha::b27s198:
l:
_In file included from In file included from n../src/s2/s2coder.ho/usr/local/clang/include/absl/strings/str_cat.h:n:n23116u:
:
lIn file included from lIn file included from /usr/local/clang/include/absl/status/status.h /usr/local/clang/include/absl/strings/internal/stringify_sink.h:_:67N23:
o:
n/usr/local/clang/include/absl/strings/numbers.hIn file included from n:u/usr/local/clang/include/absl/status/internal/status_internal.h170l:l:29
59:
      :In file included from |  /usr/local/clang/include/absl/strings/cord.h                     ^warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
170 | /usr/local/clang/include/absl/synchronization/mutex.hb:o1221o:l54 :s awarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
_stIn file included from r ts2geography/build.cc1221o: | ub23o2:
_oblaIn file included from  ss2geography/build.hCeo:(n4adbi:
stIn file included from li:../src/s2/s2builderutil_s2point_vector_layer.ho:n:s:25t:r:
CiIn file included from an../src/s2/base/logging.hsgt:_Av21ni:
deIn file included from Cw/usr/local/clang/include/absl/log/check.ha l:tle37Fx:
utIn file included from n,/usr/local/clang/include/absl/log/internal/check_impl.hc t:uii21onn:
t(3/usr/local/clang/include/absl/log/internal/check_op.hc2o:_n458ts*:t  1aCb:osn ldwarning: _itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nt
oino/usr/local/clang/include/absl/log/internal/check_op.hnnu:*l450 l:a 25bvs:al l_note: unexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'eo,
n
n        u| l                                                          ^450l
 |   /usr/local/clang/include/absl/base/nullability.hc :) 241   : {x22
,:        | note: x                                                     ^expanded from macro 'absl_nonnull',

 c/usr/local/clang/include/absl/base/nullability.h  o:n241241s | :#t22d :ec fhnote: iaexpanded from macro 'absl_nonnull'rn*
e   a 241ab | bs#sldle__fnnioonnnenn uaulblls ll_)_N
noo      nnn| n                        ^uul
lll
 /usr/local/clang/include/absl/base/nullability.h      _:| N                     ^241o
n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #defiIn file included from ns2geography/accessors.cce: 2a:
bIn file included from ss2geography/accessors.hl:_4n:
oIn file included from ns2geography/geography.hn:u4l:
lIn file included from  ../src/s2/s2polygon.h_:N34o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | booIn file included from ls2geography/accessors-geog.cc :s2a:
fIn file included from In file included from es2geography/accessors-geog.h_s2geography/build.cc:s:4t2:
r:
In file included from tIn file included from ../src/s2/s2convex_hull_query.hos2geography/build.h:u:2564:
4:
In file included from _In file included from ../src/s2/s2cap.hb../src/s2/s2builderutil_s2point_vector_layer.h:a:30s25:
e:
In file included from (In file included from ../src/s2/s1angle.ha../src/s2/base/logging.h:b:28s21:
l:
In file included from :In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/log/check.h:s:27t37:
r:
In file included from iIn file included from ../src/s2/s2coder.hn/usr/local/clang/include/absl/log/internal/check_impl.h:g:23_21:
v:
In file included from i/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.he::w45967 ::
t1In file included from e:/usr/local/clang/include/absl/status/internal/status_internal.hx :twarning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],:
 
In file included from u/usr/local/clang/include/absl/strings/cord.hi:  n94459t:
6 | In file included from A4/usr/local/clang/include/absl/strings/internal/cordz_info.h_B:tS31*L:
 _/usr/local/clang/include/absl/synchronization/mutex.haL:bO1230sG:_l12_I:Nn Twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nE
nRuNl lA1230 L | v_ Da lE uF eb,Io
oN      lE|                                                            ^_(
*Ma/usr/local/clang/include/absl/base/nullability.hbA:sK241lE:__22Cn:HoE Cnnote: nKexpanded from macro 'absl_nonnull'_u
OlP  l_241 S | fT#RudnIeNcfG)i_(nETe*X  aTaEbbsRslNl__(nncouonlnnsltua lblai bl_siNltoy:n:_nsuuntlklrni
on      wg| n_                     ^v)
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      /usr/local/clang/include/absl/base/nullability.h| :^241
:22:/usr/local/clang/include/absl/log/internal/check_op.h :note: 449expanded from macro 'absl_nonnull':
In file included from 31  s2geography/accessors.cc:241:  | 2#note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'dIn file included from e
s2geography/accessors.hf:i4n  :
e449In file included from   | s2geography/geography.ha :b 4se:
lxIn file included from _t../src/s2/s2polygon.hne:ron34 n:
tnIn file included from eu../src/s2/mutable_s2shape_index.hmlp:ll30a :
t_eIn file included from N /usr/local/clang/include/absl/container/btree_map.hoc:no66nns:
utIn file included from l lc/usr/local/clang/include/absl/container/internal/btree.hh
:a      70r| :
*                     ^ In file included from 
a/usr/local/clang/include/absl/container/internal/layout.hb:s198l:
_In file included from In file included from n/usr/local/clang/include/absl/strings/str_cat.hs2geography/accessors-geog.cco::n116n2:
u:
In file included from lIn file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hls2geography/accessors-geog.h: :M234a:
:
k/usr/local/clang/include/absl/strings/numbers.hIn file included from e:../src/s2/s2convex_hull_query.hC175:h:e25c41:
k:In file included from O ../src/s2/s2cap.hpwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t:
r30i:
  nIn file included from 175g../src/s2/s1angle.h | (:  28  :
  \In file included from  
../src/s2/s2point.h       : | 27                               ^:
 
In file included from  ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h : :23 241:
 :In file included from  22/usr/local/clang/include/absl/status/status.h ::  67 note: :
 expanded from macro 'absl_nonnull'In file included from  
/usr/local/clang/include/absl/status/internal/status_internal.h :   29241 :
  | In file included from  #/usr/local/clang/include/absl/strings/cord.h d:ae94bf:
isIn file included from ln/usr/local/clang/include/absl/strings/internal/cordz_info.h:e: :31ua:
ib/usr/local/clang/include/absl/synchronization/mutex.hns:tl12301_:2348n:o*n  nwarning: autype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]bl
sll  __1230nN | oo n nn un lubllo lovl
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iln_tn obnansuel)l; 
f      u| n                                        ^cIn file included from 
)s2geography/build.cc(/usr/local/clang/include/absl/base/nullability.hT::*2241 :
:aIn file included from 22bs2geography/build.h:s: l4note: _expanded from macro 'absl_nonnull':
n
In file included from u  l../src/s2/s2builderutil_s2point_vector_layer.h241l: | a25#bd:
ielIn file included from fii../src/s2/base/logging.htny:e_ 21uan:
bkIn file included from snl/usr/local/clang/include/absl/log/check.ho_w:nn37o):
n,nIn file included from 
u/usr/local/clang/include/absl/log/internal/check_impl.h      l:| l                                 ^21 
_:
N/usr/local/clang/include/absl/base/nullability.ho/usr/local/clang/include/absl/log/internal/check_op.h:n:289n459:u:34l1:l: 
 note:       expanded from macro 'absl_nullability_unknown'warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
                     ^

  /usr/local/clang/include/absl/log/internal/check_op.h289: | 450#:d25e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
 ab  s450l | _ n u l l a bxi,l ixt,y In file included from _cs2geography/accessors.ccuo:nn2ks:
ntIn file included from o s2geography/accessors.hcwh:na4 r:
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l_In file included from u_../src/s2/s2polygon.hnn:osn34pn:
euIn file included from cl../src/s2/mutable_s2shape_index.hil:f)30
i:
      eIn file included from | d/usr/local/clang/include/absl/container/btree_map.h
                        ^:      
66| :
                                 ^/usr/local/clang/include/absl/base/nullability.hIn file included from 
:/usr/local/clang/include/absl/container/internal/btree.h241::7022:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.hnote: :expanded from macro 'absl_nonnull'198
:
In file included from In file included from   s2geography/accessors-geog.cc/usr/local/clang/include/absl/strings/str_cat.h241:: | 2116#:
:
dIn file included from In file included from es2geography/accessors-geog.h/usr/local/clang/include/absl/strings/internal/stringify_sink.hf::i4n23:
e:
In file included from  /usr/local/clang/include/absl/strings/numbers.ha../src/s2/s2convex_hull_query.hb::s18225l::
_7nIn file included from o:../src/s2/s2cap.hn :nwarning: u30type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
l
In file included from  ../src/s2/s1angle.h_  :N18228o | :
ncIn file included from hn../src/s2/s2point.hau:rl27*l:
 
In file included from a      ../src/s2/s2coder.hb| :s                     ^l23_
:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :R29o:
uIn file included from n/usr/local/clang/include/absl/strings/cord.hd:T94r:
iIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.hD:o31u:
b/usr/local/clang/include/absl/synchronization/mutex.hl:e1231T:o8B:In file included from u fs2geography/build.ccwarning: ftype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:e
2r (:
1231dIn file included from  | o s2geography/build.hu b: l 4eT:
 *In file included from d ../src/s2/s2builderutil_s2point_vector_layer.h,a: b25csh:
la_In file included from rn../src/s2/base/logging.h*u l:alb21asb:
li_In file included from ln/usr/local/clang/include/absl/log/check.hiot:nyn37_uu:
lnlIn file included from k /usr/local/clang/include/absl/log/internal/check_impl.hnbo:uwf21nf :
ear/usr/local/clang/include/absl/log/internal/check_op.hr):g;)460

:            1| |       ^:       ^
 
/usr/local/clang/include/absl/base/nullability.hwarning: :/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241:
:28922::34   :460note:  expanded from macro 'absl_nonnull'note:  | expanded from macro 'absl_nullability_unknown'
A
  B241  S | 289#L | d#_edfLeiOfniGen_ eaI basNblsT_lnE_onRnuNnluAllaLl_ Db_EiFNIlNoinEt_nyMu_luAln
KkE      _n| oC                     ^wH
EnC K__NOIn file included from uPs2geography/accessors.ccl_:lS2_T:
uRIn file included from nIs2geography/accessors.hNs:pG4e_:
cEIn file included from iXs2geography/geography.hfT:EiR4eN:
(dcIn file included from 
o../src/s2/s2polygon.h      n:| s34t                                 ^ :
c
hIn file included from a../src/s2/mutable_s2shape_index.hr:*30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n70u:
lIn file included from l/usr/local/clang/include/absl/container/internal/layout.h):;198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h^:
116:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::44923::
31/usr/local/clang/include/absl/strings/numbers.h:: 182note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'60
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]449
 |     e182x | tcehranr *t eambpslla_In file included from tns2geography/accessors-geog.ccoe: n2nc:
uoIn file included from lns2geography/accessors-geog.hls: t4R :
ocIn file included from hu../src/s2/s2convex_hull_query.hnad:rT25*r :
aiIn file included from bp../src/s2/s2cap.hsD:lo30_u:
bnIn file included from lo../src/s2/s1angle.hen:Tn28ou:
BlIn file included from ul../src/s2/s2point.hf :fM27ea:
rkIn file included from (e../src/s2/s2coder.hdC:oh23ueb:
clkIn file included from eO/usr/local/clang/include/absl/status/status.h p:dS,67 t:
crIn file included from ih/usr/local/clang/include/absl/status/internal/status_internal.han:rg29*(:
  In file included from a /usr/local/clang/include/absl/strings/cord.hb :s\94l
:
_      In file included from n| /usr/local/clang/include/absl/strings/internal/cordz_info.ho                              ^:n
31n:
/usr/local/clang/include/absl/base/nullability.hu/usr/local/clang/include/absl/synchronization/mutex.hl::l2411241 ::b2212u:f:f  enote: warning: expanded from macro 'absl_nonnull'rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

;  
241        | | 1241                                                           ^# | d
 e/usr/local/clang/include/absl/base/nullability.h f: i241 n:eb22 oa:bos llnote:  expanded from macro 'absl_nonnull'_(
n*  oan241bn | usl#ldl_en foi_nnnNeu olnanlbu sfllul_n
nco      )n(| nTu                     ^*l 
la b_sNloIn file included from _nns2geography/build.ccnuu:lll2la
:
b      In file included from i| ls2geography/build.h                     ^i:
t4y:
_In file included from u../src/s2/s2builderutil_s2point_vector_layer.hn:k25n:
oIn file included from w../src/s2/base/logging.hn:In file included from )21s2geography/accessors.cc,:
:
In file included from 2      /usr/local/clang/include/absl/log/check.h:
| :In file included from            ^37s2geography/accessors.h
:
:In file included from /usr/local/clang/include/absl/base/nullability.h4/usr/local/clang/include/absl/log/internal/check_impl.h::
:241In file included from 21:s2geography/geography.h:
22/usr/local/clang/include/absl/log/internal/check_op.h:::4 460:
note: :In file included from expanded from macro 'absl_nonnull'66../src/s2/s2polygon.h
::   34warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 | 
In file included from #../src/s2/mutable_s2shape_index.hd:e  30f460:
i | In file included from nAe/usr/local/clang/include/absl/container/btree_map.h B:aS66bL:
_sLIn file included from lO/usr/local/clang/include/absl/container/internal/btree.hG_:n_70oI:
NnIn file included from Tn/usr/local/clang/include/absl/container/internal/layout.hEu:RlN198lA:
 LIn file included from __/usr/local/clang/include/absl/strings/str_cat.hND:Eo116nF:
nIIn file included from uN/usr/local/clang/include/absl/strings/internal/stringify_sink.hlE:l_23
M:
      A/usr/local/clang/include/absl/strings/numbers.h| K:                     ^E183
_:C7H:E CIn file included from warning: Ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_s2geography/accessors-geog.ccO
:P2_:
  SIn file included from 183Ts2geography/accessors-geog.h | R:cI4hN:
aGIn file included from r_../src/s2/s2convex_hull_query.h*E: X25aT:
bEIn file included from RsN../src/s2/s2cap.hl(:_c30on:
onIn file included from snt../src/s2/s1angle.h n:uc28lh:
laIn file included from  r../src/s2/s2point.hR*:o u27an:
dbIn file included from sT../src/s2/s2coder.hrl:i_23pn:
FoIn file included from ln/usr/local/clang/include/absl/status/status.hon:au67tl:
TlIn file included from o)/usr/local/clang/include/absl/status/internal/status_internal.hB;:u
29f      :
f| In file included from e                                                                 ^/usr/local/clang/include/absl/strings/cord.hr
:(94/usr/local/clang/include/absl/base/nullability.hf:
l:oIn file included from 241a/usr/local/clang/include/absl/strings/internal/cordz_info.ht:: 2231f::
,/usr/local/clang/include/absl/synchronization/mutex.h  :cnote: 1241hexpanded from macro 'absl_nonnull':a
34r:  *  241warning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | b
s#ld _e1241nf | o inn en u  alblbo sobllu_f fn(e*oran)bn;su
ll      l_|  n      ^o_
nNn/usr/local/clang/include/absl/base/nullability.hou:nl241ln: u22fl:ul n
note: cexpanded from macro 'absl_nonnull'      )
| (                       ^T241*
 |  #adbesfli_nIn file included from nes2geography/build.ccu l:alb2asb:
li_In file included from lns2geography/build.hiot:ny4n_u:
ulIn file included from nlk../src/s2/s2builderutil_s2point_vector_layer.h n_:oNw25onn:
)n,In file included from u
../src/s2/base/logging.hl      :l| 
21                                 ^      :

| In file included from /usr/local/clang/include/absl/base/nullability.h                     ^/usr/local/clang/include/absl/log/check.h:
:28937::
34In file included from :In file included from /usr/local/clang/include/absl/log/internal/check_impl.h s2geography/accessors.cc:note: :expanded from macro 'absl_nullability_unknown'212
:
:
  /usr/local/clang/include/absl/log/internal/check_op.hIn file included from 289:s2geography/accessors.h | 460:#:4d66:
e:In file included from f s2geography/geography.hiwarning: :ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]4e
:
 /usr/local/clang/include/absl/base/nullability.hIn file included from a:../src/s2/s2polygon.hb241:s:34l22:
_:In file included from n ../src/s2/mutable_s2shape_index.hunote: :expanded from macro 'absl_nonnull'l30l
:
aIn file included from b  /usr/local/clang/include/absl/container/btree_map.hi241:l | 66i#:
tdIn file included from ey/usr/local/clang/include/absl/container/internal/btree.h_f:ui70nne:
k In file included from na/usr/local/clang/include/absl/container/internal/layout.hob:ws198ln:
_ In file included from n_/usr/local/clang/include/absl/strings/str_cat.hoN:un116ln:
luIn file included from _l/usr/local/clang/include/absl/strings/internal/stringify_sink.hlu :n_23sN:
po/usr/local/clang/include/absl/strings/numbers.hen:nc183ui:fl58il:e
 d      warning: 
| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                           ^
| 
                                 ^
  183 | chaIn file included from rs2geography/build.cc*: 2a:
bIn file included from ss2geography/build.hl:_4n:
oIn file included from n../src/s2/s2builderutil_s2point_vector_layer.hn:uIn file included from 25ls2geography/accessors-geog.ccl:
: In file included from 2R../src/s2/base/logging.h:
o:In file included from u21s2geography/accessors-geog.hn:
:dIn file included from 4T/usr/local/clang/include/absl/log/check.hr:
i:In file included from p37F../src/s2/s2convex_hull_query.hl:
:oIn file included from a25t/usr/local/clang/include/absl/log/internal/check_impl.h:
T:In file included from o21../src/s2/s2cap.hB:
:/usr/local/clang/include/absl/log/internal/check_op.hu30:f:
f460In file included from e:../src/s2/s1angle.hr1:(:f28l :
owarning: In file included from atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.ht
: 27f:
  ,In file included from 460 ../src/s2/s2coder.h | c:hA23aB:
rS*In file included from L /usr/local/clang/include/absl/status/status.h_a:bL67sO:
lGIn file included from __/usr/local/clang/include/absl/status/internal/status_internal.hnI:oN29nT:
nEIn file included from uR/usr/local/clang/include/absl/strings/cord.hlN:lA94 Lb:
_uIn file included from fD/usr/local/clang/include/absl/strings/internal/cordz_info.hfE:eFr31I):
;N/usr/local/clang/include/absl/synchronization/mutex.h
E:      _1242| M:                                                         ^A44
K:/usr/local/clang/include/absl/base/nullability.hE _warning: :Ctype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]241H
:E22C :K1242 _note:  | expanded from macro 'absl_nonnull'O 
 P   _241S  | tT#ydRpeeIfniaNnmeeG  a_abbEssXll_T:n:EotRnynNpue(l_lcio d_neNnsotntint uylc<lTh
>a      :r| :                     ^*t
y paeb*s la_bnsoln_nnuuIn file included from llls2geography/accessors.ccl):a;b2i
:
l      In file included from i| s2geography/accessors.ht^:y
4_:
u/usr/local/clang/include/absl/log/internal/check_op.hIn file included from n:s2geography/geography.hk450:n:4o25:
w:In file included from n ../src/s2/s2polygon.h
note: :      expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'34| 
:
                                           ^In file included from 
  ../src/s2/mutable_s2shape_index.h450/usr/local/clang/include/absl/base/nullability.h: | : 30289 :
: In file included from 34 /usr/local/clang/include/absl/container/btree_map.h: :  66note: x:
,expanded from macro 'absl_nullability_unknown'In file included from  
/usr/local/clang/include/absl/container/internal/btree.hx:  ,70 289:
c | In file included from #o/usr/local/clang/include/absl/container/internal/layout.hdn:es198ft:
 icIn file included from nh/usr/local/clang/include/absl/strings/str_cat.hea: r116a*:
b In file included from as/usr/local/clang/include/absl/strings/internal/stringify_sink.hbl:s_23ln:
u_/usr/local/clang/include/absl/strings/numbers.hln:lo191na:nb42iu:ll ilwarning: t)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y

_      u| n                          ^k191n
 | os/usr/local/clang/include/absl/base/nullability.hwin:z e241__N:tu 22lS:li_ xunote: Dniexpanded from macro 'absl_nonnull'sgp
iet  csi241Tfo | iB#euddf
fe      ef| ri                                 ^(n
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lIn file included from  s2geography/accessors-geog.ccb:u2f:
fIn file included from es2geography/accessors-geog.hr:)4;:

In file included from       ../src/s2/s2convex_hull_query.h| :                                         ^25
:
In file included from ../src/s2/s2cap.h/usr/local/clang/include/absl/base/nullability.h::30241:
:In file included from 22../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2point.h
:27:
  In file included from 241../src/s2/s2coder.h | :#23d:
eIn file included from In file included from f/usr/local/clang/include/absl/status/status.his2geography/build.cc:n:67e2:
 :
In file included from aIn file included from /usr/local/clang/include/absl/status/internal/status_internal.hbs2geography/build.h:s:29l4:
_:
In file included from nIn file included from /usr/local/clang/include/absl/strings/cord.ho../src/s2/s2builderutil_s2point_vector_layer.h:n:94n25:
u:
In file included from lIn file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hl../src/s2/base/logging.h: :31_21:
N:
/usr/local/clang/include/absl/synchronization/mutex.hoIn file included from :n/usr/local/clang/include/absl/log/check.h1249n::u378l:
:lIn file included from  
/usr/local/clang/include/absl/log/internal/check_impl.hwarning:       :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 21
                     ^:

 /usr/local/clang/include/absl/log/internal/check_op.h1249: | 461 : 1 :  Twarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] In file included from 
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_ | In file included from nAs2geography/accessors.hBo:Sn4Ln_:
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_N  o/usr/local/clang/include/absl/log/internal/check_op.h198n: | nc449uhl:alr31
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l_n  o449n | n u lelx tFeIn file included from ars2geography/accessors-geog.ccns :tt2Ie:
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*oIn file included from  n../src/s2/s2coder.han:bu23sl:
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       ^/usr/local/clang/include/absl/synchronization/mutex.h\

:/usr/local/clang/include/absl/base/nullability.h      1250:| :                              ^24143
::22 :/usr/local/clang/include/absl/base/nullability.hwarning:  :note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'241

:22  : 241 1250 | note:  | #expanded from macro 'absl_nonnull' d 
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d:In file included from )25../src/s2/mutable_s2shape_index.h(:
:)In file included from 30)../src/s2/base/logging.h:

:In file included from       21/usr/local/clang/include/absl/container/btree_map.h| :
:                                          ^In file included from 66
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:/usr/local/clang/include/absl/base/nullability.hIn file included from 37:/usr/local/clang/include/absl/container/internal/btree.h:
241:In file included from :70/usr/local/clang/include/absl/log/internal/check_impl.h22:
::In file included from 21 /usr/local/clang/include/absl/container/internal/layout.h:
note: :expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h198
::
462  In file included from :241/usr/local/clang/include/absl/strings/str_cat.h24 | ::#116d :
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:
28In file included from   :
s2geography/build.h241In file included from : | ../src/s2/s2point.h#4:
:dIn file included from 27e../src/s2/s2builderutil_s2point_vector_layer.h:
f:In file included from i25../src/s2/s2coder.hn:
:eIn file included from 23 ../src/s2/base/logging.h:
a:In file included from b21/usr/local/clang/include/absl/status/status.hs:
:lIn file included from 67_/usr/local/clang/include/absl/log/check.h:
n:In file included from o37/usr/local/clang/include/absl/status/internal/status_internal.hn:
:nIn file included from 29u/usr/local/clang/include/absl/log/internal/check_impl.h:
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o462In file included from n:/usr/local/clang/include/absl/strings/internal/cordz_info.hn24:u:31l :
lwarning: /usr/local/clang/include/absl/synchronization/mutex.h
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:      
1259| :                     ^/usr/local/clang/include/absl/base/nullability.h14
::241 :warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
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In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from In file included from :s2geography/build.cc../src/s2/mutable_s2shape_index.h22:::230 :
:
note: In file included from In file included from expanded from macro 'absl_nonnull's2geography/build.h/usr/local/clang/include/absl/container/btree_map.h
::4  66:
241:
In file included from  | In file included from #../src/s2/s2builderutil_s2point_vector_layer.h/usr/local/clang/include/absl/container/internal/btree.hd::e2570f:
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l

        |   199                     ^461 | 
  |  A B SALB_SLLO_GI_NITIn file included from NETs2geography/accessors-geog.ccRE:NR2NA:
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450:      :94| 25:
    ^:In file included from 
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::
251  /usr/local/clang/include/absl/synchronization/mutex.h:450:18 | 1260: :  note: 43 expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE': 
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251  | x  ,1260   | _ c_ ao nt stbrtoio bluc t(heaa_br_s(*l( :d:aibatgsynlp_oesn_eoin_ndieufnl(tl_i_)tby
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bIn file included from s../src/s2/s2polygon.hl:_34n:
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lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l70l:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :                     ^198
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In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.hs2geography/build.cc::1162:
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:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s2builderutil_s2point_vector_layer.h200::257:
:In file included from  ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
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In file included from /usr/local/clang/include/absl/log/check.h:37  :
200In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.hc:h21a:
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nnu  l463l |  AFBIn file included from aSs2geography/accessors-geog.ccsL:t_2IL:
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35::/usr/local/clang/include/absl/base/nullability.h  :note: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
:   449note:  |  expanded from macro 'absl_nonnull' 1279 
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)22In file included from ;:/usr/local/clang/include/absl/container/internal/btree.h
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d241In file included from e:/usr/local/clang/include/absl/strings/str_cat.hf22:i:116 nnote: :
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In file included from Fs2geography/build.ha:s4t:
IIn file included from n../src/s2/s2builderutil_s2point_vector_layer.ht:T25o:
BIn file included from u../src/s2/base/logging.hf:f21e:
rIn file included from (/usr/local/clang/include/absl/log/check.hu:In file included from i37s2geography/accessors-geog.ccn:
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2:In file included from _21s2geography/accessors-geog.ht:
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,464In file included from  :../src/s2/s2convex_hull_query.hc26:h:25a :
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s464In file included from l | ../src/s2/s1angle.h_ :n 28o :
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l:)  31;241:

/usr/local/clang/include/absl/synchronization/mutex.h |       :#| 1293d                         ^:e
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:a22b:s l 1293_note:  | nvexpanded from macro 'absl_nonnull'oon
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a:In file included from r4s2geography/geography.h*:
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b:In file included from s25../src/s2/s2polygon.hl:
:_In file included from 34n../src/s2/base/logging.h:
o:In file included from n21../src/s2/mutable_s2shape_index.hn:
:uIn file included from 30l/usr/local/clang/include/absl/log/check.h:
l:In file included from  37/usr/local/clang/include/absl/container/btree_map.hm:
:sIn file included from 66g/usr/local/clang/include/absl/log/internal/check_impl.h:
,:In file included from 
21/usr/local/clang/include/absl/container/internal/btree.h      :
:| /usr/local/clang/include/absl/log/internal/check_op.h70                                ^::

464In file included from :/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.h26:::241198 ::
22warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:/usr/local/clang/include/absl/strings/str_cat.h
 :/usr/local/clang/include/absl/base/nullability.h116note: ::
expanded from macro 'absl_nonnull'241In file included from 
:/usr/local/clang/include/absl/strings/internal/stringify_sink.h22  ::24123  | :
#note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull'd:e
201f:  i5n241:e |  # warning: a'diagnose_if' is a clang extension [-Wgcc-compat]db
self_i  nn201eo | n  n aub l slAl B__SnNLoo_nnInNnuTluElRllN
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_
In file included from Ss2geography/accessors-geog.hI:Z4E:
(In file included from oIn file included from ../src/s2/s2convex_hull_query.hus2geography/build.cc:t:25_2:
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29::
1/usr/local/clang/include/absl/base/macros.hIn file included from ::/usr/local/clang/include/absl/strings/cord.h 251:warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]9418
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A/usr/local/clang/include/absl/synchronization/mutex.h  B:251S1293 | L: _62 L:_O _Gawarning: t_ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]rI
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|  In file included from                                                              ^x../src/s2/s2polygon.h
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241,In file included from : ../src/s2/mutable_s2shape_index.h22c::o30 n:
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boIn file included from sn/usr/local/clang/include/absl/strings/str_cat.hln:_u116nl:
olIn file included from n)/usr/local/clang/include/absl/strings/internal/stringify_sink.hn
:u      23l| :
l                        ^/usr/local/clang/include/absl/strings/numbers.h 
:_202N/usr/local/clang/include/absl/base/nullability.h:o:7n241:n: u22warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:l

         note: | 202                     ^expanded from macro 'absl_nonnull' | 
c
ha  r241* | In file included from  #s2geography/accessors-geog.ccad:be2sf:
ilIn file included from n_s2geography/accessors-geog.hne:o 4na:
nbIn file included from us../src/s2/s2convex_hull_query.hll:l_25 n:
FoIn file included from an../src/s2/s2cap.hsn:tu30Il:
nlIn file included from t ../src/s2/s1angle.hT_:No28Bo:
unIn file included from fn../src/s2/s2point.hfu:el27rl:
(
In file included from i      ../src/s2/s2coder.hn| :t                     ^236
:
4In file included from _/usr/local/clang/include/absl/status/status.ht: 67i:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:h29a:
rIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u1294l:l62 :b uwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from f
s2geography/build.cce:r )21294
:
 |        In file included from |        ^s2geography/build.h 
 :/usr/local/clang/include/absl/base/nullability.h 4: :
241 In file included from : ../src/s2/s2builderutil_s2point_vector_layer.h22 :: 25  :
note:  In file included from expanded from macro 'absl_nonnull' ../src/s2/base/logging.h
 :   21 241 :
 |  #In file included from  d /usr/local/clang/include/absl/log/check.he :f 37i n:
 eIn file included from    /usr/local/clang/include/absl/log/internal/check_impl.ha b: s 21l :
_ n o/usr/local/clang/include/absl/log/internal/check_op.h n: n465 u :l l1   :_ N  o warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] n 
u l l 
          465c| o |                      ^nA
sBtS Lv_oLiIn file included from Ods2geography/accessors.ccG*: _2aI:
bNIn file included from sTs2geography/accessors.hlE:_R4nN:
oAIn file included from nLs2geography/geography.hn_:uD4lE:
lFIn file included from  I../src/s2/s2polygon.hoN:bEj34,_:

MIn file included from       A../src/s2/mutable_s2shape_index.h| K:                                                             ^E30
_:
/usr/local/clang/include/absl/base/nullability.hCIn file included from :H/usr/local/clang/include/absl/container/btree_map.h241E::C6622K:
:_In file included from  O/usr/local/clang/include/absl/container/internal/btree.hnote: P:expanded from macro 'absl_nonnull'_70
S:
  TIn file included from 241 | R#/usr/local/clang/include/absl/container/internal/layout.hId:eN198Gf:
i_In file included from nE/usr/local/clang/include/absl/strings/str_cat.heX: T116aE:
bRIn file included from sN/usr/local/clang/include/absl/strings/internal/stringify_sink.hl(:_c23on:
o/usr/local/clang/include/absl/strings/numbers.hnn:ns202ut:l 53lv: o iwarning: d_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N*
o nan  ub202sl | llc_
hn      ao| rn                     ^*n
 ualbls)l;_
n      o| n^n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 449F:a31s:tIn file included from  Is2geography/accessors-geog.ccnnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't2T
:
oIn file included from Bs2geography/accessors-geog.hu  :f4494f | :
e In file included from r ../src/s2/s2convex_hull_query.h(e:ix25tn:
etIn file included from r6../src/s2/s2cap.h4n: _t30et:
 mIn file included from ip../src/s2/s1angle.h,l:a 28ct:
eh In file included from ac../src/s2/s2point.hro:n*27 s:
atIn file included from b ../src/s2/s2coder.hcshl:_a23rn:
*o In file included from an/usr/local/clang/include/absl/status/status.hnb:us67ll:
l_In file included from  n/usr/local/clang/include/absl/status/internal/status_internal.hob:un29fn:
fuIn file included from el/usr/local/clang/include/absl/strings/cord.hrl:) 94M
a:
k      eIn file included from | C/usr/local/clang/include/absl/strings/internal/cordz_info.h                                                    ^h:e
31c/usr/local/clang/include/absl/base/nullability.h:
k:/usr/local/clang/include/absl/synchronization/mutex.hO241:p:1309S22:t:35r :inote:  expanded from macro 'absl_nonnull'nwarning: 
gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  (
241  |  # d 1309\e
 | fv      ion| ie                              ^d  
aRb/usr/local/clang/include/absl/base/nullability.hesg:li_241snt:oen22rnC:uol nldnote:  V_expanded from macro 'absl_nonnull'aNr
oTnr  nau241cle | lr
#(      vd| o                     ^ei
df i(n*ea basbls_ln_onnonnunlull lf n_)N(o
n      n| u                                  ^l
lIn file included from 
/usr/local/clang/include/absl/base/nullability.hs2geography/accessors.cc      ::| 2412                     ^::

22In file included from :s2geography/accessors.h :4note: In file included from :
expanded from macro 'absl_nonnull's2geography/build.ccIn file included from 
:s2geography/geography.h2  ::
2414In file included from  | :
#s2geography/build.hIn file included from d:../src/s2/s2polygon.he4:f:
34iIn file included from :
n../src/s2/s2builderutil_s2point_vector_layer.hIn file included from e:../src/s2/mutable_s2shape_index.h 25:a:
30bIn file included from :
s../src/s2/base/logging.hIn file included from l:/usr/local/clang/include/absl/container/btree_map.h_21:n:
66oIn file included from :
n/usr/local/clang/include/absl/log/check.hIn file included from n:/usr/local/clang/include/absl/container/internal/btree.hu37:l:
70lIn file included from :
 /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from _:/usr/local/clang/include/absl/container/internal/layout.hN21:o:
198n/usr/local/clang/include/absl/log/internal/check_op.h:
n:In file included from u465/usr/local/clang/include/absl/strings/str_cat.hl::l66116
::
       In file included from | warning: /usr/local/clang/include/absl/strings/internal/stringify_sink.h                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

23:
/usr/local/clang/include/absl/strings/numbers.h:  In file included from 203465s2geography/accessors-geog.cc: | :5A2:B:
 Swarning: In file included from L'diagnose_if' is a clang extension [-Wgcc-compat]s2geography/accessors-geog.h_
:L4O  :
G203_In file included from  | I../src/s2/s2convex_hull_query.h N: T25E :
 RIn file included from ANB../src/s2/s2cap.hSA:LL30__:
DIIn file included from NE../src/s2/s1angle.hFT:EI28RN:
ENIn file included from _A../src/s2/s2point.hLM:_A27KN:
EEIn file included from E_../src/s2/s2coder.hDC_:HM23IE:
NCIn file included from _K/usr/local/clang/include/absl/status/status.hS_:IO67ZP:
E_In file included from (S/usr/local/clang/include/absl/status/internal/status_internal.hbT:uR29fI:
fNIn file included from eG/usr/local/clang/include/absl/strings/cord.hr_:,E94 X:
kTIn file included from FE/usr/local/clang/include/absl/strings/internal/cordz_info.haR:sN31t(:
T/usr/local/clang/include/absl/synchronization/mutex.hco:Bo1310un:sf17ft:e  rvwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oi
zie d)*1310;  | 
 a       b|      ^s 
clo_/usr/local/clang/include/absl/base/macros.hnn:so251tn: n18cu:hl alnote: rexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE')*
; 
  a      251b|  |                                                                  ^s l
 __/usr/local/clang/include/absl/base/nullability.hn_o:ant241ntu:rli22lb :umt segnote: _expanded from macro 'absl_nonnull',_
 (c  (od241nis | at#g dnevofosiiedn_*ie f a(ba_s_blbs_ulnio_lnnotnninunlu_lol bcljve )c_)t;N_
so      in| z                ^neu
(l/usr/local/clang/include/absl/base/nullability.hOl:
b241j      :,| 22                      ^:0
 )note:  expanded from macro 'absl_nonnull'<
 N  ,241In file included from   | \#s2geography/build.cc
d:      e2| f                 ^:
i
nIn file included from es2geography/build.h :a4b:
sIn file included from l../src/s2/s2builderutil_s2point_vector_layer.h_:nIn file included from 25os2geography/accessors.ccn:
:nIn file included from 2u../src/s2/base/logging.h:
l:In file included from l21s2geography/accessors.h :
:_In file included from 4N/usr/local/clang/include/absl/log/check.h:
o:In file included from n37s2geography/geography.hn:
:uIn file included from 4l/usr/local/clang/include/absl/log/internal/check_impl.h:
l:In file included from 
21../src/s2/s2polygon.h      :
:/usr/local/clang/include/absl/log/internal/check_op.h| 34                     ^::

465In file included from :../src/s2/mutable_s2shape_index.h66::30In file included from  :
s2geography/accessors-geog.ccwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:/usr/local/clang/include/absl/container/btree_map.h
2::
/usr/local/clang/include/absl/base/nullability.h66In file included from ::
s2geography/accessors-geog.h241In file included from ::/usr/local/clang/include/absl/container/internal/btree.h422::
:70In file included from  :
../src/s2/s2convex_hull_query.hIn file included from note: :expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/layout.h25
::
198In file included from   :
../src/s2/s2cap.h241In file included from : | /usr/local/clang/include/absl/strings/str_cat.h#30:d:
116eIn file included from f:
../src/s2/s1angle.hiIn file included from :n/usr/local/clang/include/absl/strings/internal/stringify_sink.he28: :
23aIn file included from :
b../src/s2/s2point.hs/usr/local/clang/include/absl/strings/numbers.h:l:27_204n:
:oIn file included from n7../src/s2/s2coder.hn::u 23l:
lwarning: In file included from  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h_
:N67o:
n  In file included from n204u/usr/local/clang/include/absl/status/internal/status_internal.h | l:cl29h
:
a      In file included from r| /usr/local/clang/include/absl/strings/cord.h*                     ^: 
94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31In file included from n:
s2geography/build.cco/usr/local/clang/include/absl/synchronization/mutex.h:n:n21310u:
:lIn file included from 47ls2geography/build.h: : F4warning: a:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sIn file included from 
t../src/s2/s2builderutil_s2point_vector_layer.hI: n251310t:
 | T In file included from o B../src/s2/base/logging.h u :fcf21oen:
rs(In file included from tu /usr/local/clang/include/absl/log/check.hicn:hta637r4*_:
 taIn file included from  bi/usr/local/clang/include/absl/log/internal/check_impl.hs,l: _c21nho:
a/usr/local/clang/include/absl/log/internal/check_op.hnrn*:u l465alb: s1mls:_gn ,owarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ncn
ounlslt    b465vuo | fiAfdBe*Sr L)a_
bL      sO| l      ^G_
_nI/usr/local/clang/include/absl/base/nullability.hoN:nT241nE:uR22lN:lA  Lnote: cexpanded from macro 'absl_nonnull'_v
D)  )E241;F | 
I#      Nd| eE                                              ^f_
Mi/usr/local/clang/include/absl/base/nullability.hnA:eK241 E:_aCb22Hs:lE Cnote: _Kexpanded from macro 'absl_nonnull'n_
oO  Pn_241nS | Tu#RlIdleN f_Gi_NnEoXeTn EnauRbNls(ll
c_      no| on                     ^ns
ntu lvlo i_dIn file included from N*s2geography/accessors.cco :na2bn:
usIn file included from lls2geography/accessors.hl_:
n4      o:
n| nIn file included from                      ^us2geography/geography.h
l:l4):
;In file included from 
../src/s2/s2polygon.h      :| 34^:

In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/check_op.h::30450:
:In file included from 25/usr/local/clang/include/absl/container/btree_map.h:: 66note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70  :
450In file included from  | /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h :x116,:
 In file included from x/usr/local/clang/include/absl/strings/internal/stringify_sink.h,: 23c:
o/usr/local/clang/include/absl/strings/numbers.hn:s204t: 54c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s204l | _cnhoanrn*u lalb)s
l      _| n                        ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22F:a snote: texpanded from macro 'absl_nonnull'I
nt  T241o | B#udfeffeirn(eu ianbts64l__tn oin,n uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: In file included from warning: s2geography/accessors.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
2:
In file included from s2geography/accessors.h  :5024 | :
AIn file included from Bs2geography/geography.hS:L4_:
LIn file included from O../src/s2/s2polygon.hG:_34I:
NIn file included from T../src/s2/mutable_s2shape_index.hE:R30N:
AIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:C66H:
EIn file included from C/usr/local/clang/include/absl/container/internal/btree.hK:_70O:
PIn file included from _/usr/local/clang/include/absl/container/internal/layout.hI:M198P:
LIn file included from (/usr/local/clang/include/absl/strings/str_cat.hC:h116e:
cIn file included from k/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:E23Q:
,/usr/local/clang/include/absl/strings/numbers.h :=205=:)5
:       | warning: ^'diagnose_if' is a clang extension [-Wgcc-compat]

/usr/local/clang/include/absl/log/internal/check_op.h:488  :20532 | :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
ABS  L488_ | I N TiEnRlNiAnLe_ NcEoEnDs_tMeIxNp_rS IcZoEn(sbtu fcfhearr,*  kaFbasslt_TnouBlulfafbelreS inzaem)e;#
#      I| m    ^p
l(/usr/local/clang/include/absl/base/macros.h : 251 : 18 :   note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
      251  |      _ _ a\t
t      r| i                               ^b
ut/usr/local/clang/include/absl/base/nullability.he:_257_:(23(:d inote: aexpanded from macro 'absl_nullable'g
no  s257e | _#idfe(f_i_nbeu ialbtsiln__noubljleacbtl_es i_zNeu(lOlbajb,l e0
)       | <                      ^ 
N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.hIn file included from :s2geography/accessors.cc25::
2In file included from :
../src/s2/base/logging.hIn file included from :s2geography/accessors.h21::
4In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :s2geography/geography.h37::
4In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2polygon.h21::
34/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 502../src/s2/mutable_s2shape_index.h::130::
 In file included from warning: /usr/local/clang/include/absl/container/btree_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
66:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h489::7047:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116489:
 | In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h :c206o:n7s:t  warning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1
& v  1206, |  cchoanrs*t  aTb2s&l _vn2o,n ncuolnls tF acshtaIrn*t TaobBsulf_fneorn(niunltl1 2e8x pir,t ecxhta)r *{  a b s l _\n
o      n| n                                              ^u
ll/usr/local/clang/include/absl/base/nullability.h :b241u:f22f:e rnote: )expanded from macro 'absl_nonnull'

      |         ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)In file included from 
s2geography/build.cc      :| 2                                                   ^:

In file included from s2geography/build.h/usr/local/clang/include/absl/base/nullability.h::4241:
:In file included from 22../src/s2/s2builderutil_s2point_vector_layer.h:: 25note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_502n:o1n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _/usr/local/clang/include/absl/log/internal/check_op.hN:o497n:n32u:l lnote: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'      
|                      ^
  497 |   inline constexpr const char* absl_nullIn file included from as2geography/accessors.ccb:l2e:
 In file included from ns2geography/accessors.ha:m4e:
#In file included from #s2geography/geography.hI:m4p:
lIn file included from (../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from \/usr/local/clang/include/absl/container/internal/layout.h
:      198| :
                               ^In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2323::
 /usr/local/clang/include/absl/strings/numbers.hnote: :expanded from macro 'absl_nullable'207
:5  :257  | warning: #'diagnose_if' is a clang extension [-Wgcc-compat]d
efin  e207  | a b s l _AnBuSlLl_aIbNlTeE R_NNAuLl_lNaEbElDe_
M      I| N                      ^_
SIZE(buffeIn file included from rs2geography/build.cc,: 2k:
FIn file included from as2geography/build.hs:t4T:
oIn file included from B../src/s2/s2builderutil_s2point_vector_layer.hu:f25f:
eIn file included from r../src/s2/base/logging.h1:2218:
SIn file included from i/usr/local/clang/include/absl/log/check.hz:e37):
;In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21    ^:

/usr/local/clang/include/absl/log/internal/check_op.h:502/usr/local/clang/include/absl/base/macros.h::1251:: 18warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'/usr/local/clang/include/absl/log/internal/check_op.h
:498:35  :251  | note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
__a  t498t | r i b u t e _i_n(t( dvi1a,g nionste _vi2f,( _c_obnusitl tcihna_ro*b jaebcstl__snioznen(uOlblj ,e x0p)r t<e xNt,)  \{
        |                   ^ 
            In file included from  s2geography/accessors.cc\:
2      :
| In file included from                                   ^s2geography/accessors.h
:4/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241s2geography/geography.h::224::
 In file included from note: ../src/s2/s2polygon.hexpanded from macro 'absl_nonnull':
34:
  In file included from 241../src/s2/mutable_s2shape_index.h | :#30d:
eIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:n66e:
 In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s70l:
_In file included from n/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl: 116_:
NIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl:
208      :| 7                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2geography/accessors-geog.ccl:_2n:
oIn file included from ns2geography/accessors-geog.hn:u4l:
lIn file included from  ../src/s2/s2convex_hull_query.h_:N25o:
nIn file included from n../src/s2/s2cap.hu:l30l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | voIn file included from is2geography/build.ccd: 2C:
oIn file included from ps2geography/build.hy:C4o:
rIn file included from d../src/s2/s2builderutil_s2point_vector_layer.hT:o25S:
tIn file included from r../src/s2/base/logging.hi:n21g:
(In file included from c/usr/local/clang/include/absl/log/check.ho:n37s:
tIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hC:o21r:
d&/usr/local/clang/include/absl/log/internal/check_op.h :s503r:c1,:  swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
::str  i503n | gA*B SaLb_sLlO_Gn_oInNnTuElRlN AdLs_tC)H;E
C      K| _                                                    ^O
P_I/usr/local/clang/include/absl/base/nullability.hM:P241L:(22C:h enote: cexpanded from macro 'absl_nonnull'k
_N  E241, |  #!d=e)f
i      n| e^ 
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs2geography/accessors.ccs::l4882_::
n32In file included from o:s2geography/accessors.hn :nnote: 4expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u:
l
In file included from ls2geography/geography.h :  _4N488:
o | In file included from n ../src/s2/s2polygon.h n:iun34ll:
liIn file included from 
n../src/s2/mutable_s2shape_index.he       :c| 30                     ^o:

nIn file included from s/usr/local/clang/include/absl/container/btree_map.ht:e66x:
pIn file included from r/usr/local/clang/include/absl/container/internal/btree.h :c70o:
nIn file included from s/usr/local/clang/include/absl/container/internal/layout.ht: 198c:
hIn file included from a/usr/local/clang/include/absl/strings/str_cat.hrIn file included from :*s2geography/accessors-geog.cc116 ::
a2In file included from b:
/usr/local/clang/include/absl/strings/internal/stringify_sink.hsIn file included from l:_s2geography/accessors-geog.h23n::
u4l/usr/local/clang/include/absl/strings/numbers.h:
l:In file included from a330../src/s2/s2convex_hull_query.hb::l4125e::
  In file included from n../src/s2/s2cap.hwarning: a:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m30
e:
#In file included from #  I../src/s2/s1angle.h330m: | p28 l:
 (In file included from   ../src/s2/s2point.h  :  27  :
  In file included from   ../src/s2/s2coder.h  :  23  :
  In file included from   /usr/local/clang/include/absl/status/status.h  :   67  :
  In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h  :  29 \:
 
/usr/local/clang/include/absl/strings/cord.h       : | 110                                ^: 
 55 :   /usr/local/clang/include/absl/base/nullability.hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
t257_:t23  y:110p  | evnote: *expanded from macro 'absl_nullable'o i
adb s  Alp257_p | ne#odnenfdniCuonlerl d aTobousStt)lr _in{n
ug      l(| lc                                        ^ao
bnls/usr/local/clang/include/absl/base/nullability.hte:  241C_:No22ur:ldl &anote:  expanded from macro 'absl_nonnull'bs
lr  ce241,
 |  #      sdt| edf                      ^:i
:nset raibnsgl*_ naobnsnIn file included from lus2geography/build.cc_l:nl2o :
n_nIn file included from Nuos2geography/build.hln:ln4 ud:
lsIn file included from lt
../src/s2/s2builderutil_s2point_vector_layer.h)      ;:| 
                     ^25      
:
| In file included from                                                       ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h241::3722:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nonnull'21
:
/usr/local/clang/include/absl/log/internal/check_op.h  :241503 | :#1d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e /usr/local/clang/include/absl/log/internal/check_op.ha:b489s:l47_:n In file included from onote: s2geography/accessors.ccnexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':n
2u:
lIn file included from   ls2geography/accessors.h489 :_ | 4 N:
 oIn file included from  n s2geography/geography.hn :u 4cl:
olIn file included from n
../src/s2/s2polygon.hs      :t| 34                      ^:
T
1In file included from &../src/s2/mutable_s2shape_index.h :v301:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hc:o66n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h :T702:
&In file included from  /usr/local/clang/include/absl/container/internal/layout.hv:2198,:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.ho:n116s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:h23a:
r/usr/local/clang/include/absl/strings/numbers.h*: 335a:b52s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul  l335  | e x p r t e x t )   {           \ 
        |                                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #adbesfli:n:ei natb1s2l8_*n oanbnsull_ln o_nNnounlnlu lolu
t      )|                       ^{

      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.ccIn file included from :s2geography/accessors.cc2::
2In file included from :
s2geography/build.hIn file included from :s2geography/accessors.h4::
4In file included from :
../src/s2/s2builderutil_s2point_vector_layer.hIn file included from :s2geography/geography.h25::
4In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2polygon.h21::
34In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/mutable_s2shape_index.h37::
30In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h21::
66/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 503/usr/local/clang/include/absl/container/internal/btree.h::170::
 In file included from /usr/local/clang/include/absl/container/internal/layout.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/log/internal/check_op.h::116497:
:In file included from 32/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
/usr/local/clang/include/absl/strings/numbers.h:340:53:   497warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 inl  i340n | e   c o n s t e x p r   c o n s t   c h a r *   a b s l _ n u l l a b l e  anbasmle:#:#uIimnptl1(2 8 *   a b s l _ n o n n u l l   o u t\)
       {| 
                               ^      
|                                                     ^/usr/local/clang/include/absl/base/nullability.h
:257:/usr/local/clang/include/absl/base/nullability.h23::241 :note: 22expanded from macro 'absl_nullable':
   note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel In file included from _as2geography/accessors-geog.ccnb:su2ll:
_lIn file included from nas2geography/accessors-geog.hob:nl4ne:
 uIn file included from l_../src/s2/s2convex_hull_query.hlN: u25_l:
NlIn file included from oa../src/s2/s2cap.hbn:nl30eu:
l
In file included from l      ../src/s2/s1angle.h
| :                            ^28| 
:
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2geography/build.cc/usr/local/clang/include/absl/status/status.h::267:
:
In file included from In file included from s2geography/build.h/usr/local/clang/include/absl/status/internal/status_internal.h::429:
:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h/usr/local/clang/include/absl/strings/cord.h::25425:
:In file included from 62../src/s2/base/logging.h:: 21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :42521 | :
 /usr/local/clang/include/absl/log/internal/check_op.h :f503r:In file included from i1s2geography/accessors.cce::n 2dwarning: :
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from v
s2geography/accessors.ho:i/usr/local/clang/include/absl/log/internal/check_op.h4d::
 498In file included from C:s2geography/geography.ho35:p:4y :
Cnote: In file included from oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'../src/s2/s2polygon.hr
:d34T:
  oIn file included from S498../src/s2/mutable_s2shape_index.ht | :r 30i :
n In file included from g /usr/local/clang/include/absl/container/btree_map.h( :c 66oi:
nnIn file included from st/usr/local/clang/include/absl/container/internal/btree.ht : v70C1o:
,rIn file included from d /usr/local/clang/include/absl/container/internal/layout.h&i: n198st:
r In file included from cv/usr/local/clang/include/absl/strings/str_cat.h,2:, 116s :
ctIn file included from do/usr/local/clang/include/absl/strings/internal/stringify_sink.h:n::s23st:
t /usr/local/clang/include/absl/strings/numbers.hrc:ih346na:gr44**:   aawarning: bbtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ss
ll__nn  oo346nn | nnu u ll ll    d es tx )p r; 
t       e |                                                               ^ x
 t )/usr/local/clang/include/absl/base/nullability.h  : {241  :  22  :     note:  expanded from macro 'absl_nonnull'  
        241   |    # d  e  fi i nn te_\ t
ayb      pse| l*                                  ^_ n
aob/usr/local/clang/include/absl/base/nullability.hnsnl:u_l241nlo: n22_nN:uolnl n note: uoexpanded from macro 'absl_nonnull'lul
t
)         241| {                     ^ | 

#      d| e                                           ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | In file included from l#s2geography/accessors-geog.ccd :e_2fN:
ioIn file included from nns2geography/accessors-geog.hen: u4al:
lb
In file included from s      ../src/s2/s2convex_hull_query.hl| :_                     ^25n
:
oIn file included from n../src/s2/s2cap.hn:u30l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                              In file included from  s2geography/accessors.cc : 2 :
sIn file included from ts2geography/accessors.hd::4::
sIn file included from ts2geography/geography.hr:i4n:
gIn file included from *../src/s2/s2polygon.h :a34b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:
 In file included from d/usr/local/clang/include/absl/container/internal/btree.hs:t70):
;In file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                                              ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/base/nullability.h116::
241In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h22::23 :
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull':
351:55  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e351  | a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
               absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2geography/accessors-geog.cca:b2s:
lIn file included from _s2geography/accessors-geog.hn:o4n:
nIn file included from u../src/s2/s2convex_hull_query.hl:l25 :
_In file included from N../src/s2/s2cap.ho:n30n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* abslIn file included from _s2geography/accessors.ccn:o2n:
nIn file included from us2geography/accessors.hl:l4;:

In file included from       s2geography/geography.h| :                                      ^4
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h::34241:
:In file included from 22../src/s2/mutable_s2shape_index.h:: 30:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/btree_map.h
:66:
  In file included from 241/usr/local/clang/include/absl/container/internal/btree.h | :#70d:
eIn file included from f/usr/local/clang/include/absl/container/internal/layout.hi:n198e:
 In file included from a/usr/local/clang/include/absl/strings/str_cat.hb:s116l:
_In file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l356 :_56N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
      |                        ^356
 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2geography/accessors-geog.cc :_2N:
oIn file included from ns2geography/accessors-geog.hn:u4l:
lIn file included from 
../src/s2/s2convex_hull_query.h      :| 25                     ^:

In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnIn file included from us2geography/build.ccl:l2 :
cIn file included from os2geography/build.hr:d4):
 In file included from :../src/s2/s2builderutil_s2point_vector_layer.h :c25o:
rIn file included from d../src/s2/base/logging.h_:(21c:
oIn file included from r/usr/local/clang/include/absl/log/check.hd:)37 :
{In file included from }/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                    ^
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h504::2411::22 : warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 |   #504d | eAfBiSnLe_ LaObGs_lI_NnToEnRnNuAlLl_ C_HNEoCnKn_uOlPl_
I      M| P                     ^L
(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   In file included from is2geography/accessors-geog.ccn:l2i:
nIn file included from es2geography/accessors-geog.h :c4o:
nIn file included from s../src/s2/s2convex_hull_query.ht:e25x:
pIn file included from r../src/s2/s2cap.h :c30o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29n:
a/usr/local/clang/include/absl/strings/cord.hm:e588#:#17I:m pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
      588  |          c o n s t   C o r d\*
       a| b                               ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: cexpanded from macro 'absl_nullable'o
rd  _257; | 
#      d| e                ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _Nonnull
      |                      ^In file included from 
s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const TIn file included from 1s2geography/accessors-geog.cc&: 2v:
1In file included from ,s2geography/accessors-geog.h :c4o:
nIn file included from s../src/s2/s2convex_hull_query.ht: 25T:
2In file included from &../src/s2/s2cap.h :v302:
,In file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :c27h:
aIn file included from r../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :e641x:p33r:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
) {   641  |       \ 
u      s| i                                              ^n
g /usr/local/clang/include/absl/base/nullability.hp:o241i:n22t:e rnote:  expanded from macro 'absl_nonnull'=
 c  o241n | s#td ecfhianre*  aabbssll__nnoonnnnuullll ;_
N      o| n                                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2geography/build.cc/usr/local/clang/include/absl/status/status.h::267:
:
In file included from In file included from s2geography/build.h/usr/local/clang/include/absl/status/internal/status_internal.h::429:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2builderutil_s2point_vector_layer.h::65525::
39In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37  :
655In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.he:x504p:l1i:c iwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] In file included from 
Cs2geography/accessors.cch:a/usr/local/clang/include/absl/log/internal/check_op.h2r::
I497In file included from t:s2geography/accessors.he32:r:4a :
tnote: In file included from oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's2geography/geography.hr
:(4c:
  oIn file included from 497n../src/s2/s2polygon.hs | : t 34 i:
CnIn file included from ol../src/s2/mutable_s2shape_index.hri:dn30*e:
  In file included from ac/usr/local/clang/include/absl/container/btree_map.hbo:sn66ls:
_tIn file included from ne/usr/local/clang/include/absl/container/internal/btree.hox:np70rn:
 uIn file included from clo/usr/local/clang/include/absl/container/internal/layout.hln: s198ct:
o /usr/local/clang/include/absl/strings/str_cat.hrc:dh223)a:
r25*      : |                                        ^a
warning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.hs
:l241_:n  22u223:l |   lnote:  expanded from macro 'absl_nonnull'ae
bx  pl241le | i #cndaietmf eiH#nee#x (IaPmbospilnl_tn(e oe n *n   ua lbl s  l_ _N noun ln lu al bl l
e         | v                      ^, 
 \P
a      d| S                               ^p
ec/usr/local/clang/include/absl/base/nullability.h :s257p:e23c:  =note:  expanded from macro 'absl_nullable'a
bs  l257: | :#kdNeofPiande) In file included from 
as2geography/accessors-geog.cc      b:| s2                        ^l:

_In file included from ns2geography/accessors-geog.h/usr/local/clang/include/absl/base/nullability.hu::l4l257:
a:In file included from b23../src/s2/s2convex_hull_query.hl:e:  note: 25_expanded from macro 'absl_nullable':
N
In file included from u../src/s2/s2cap.hl  :l25730a | :
#bIn file included from dl../src/s2/s1angle.hee:f
28i      :
n| In file included from e                      ^../src/s2/s2point.h 
:a27b:
sIn file included from l../src/s2/s2coder.h_:n23u:
lIn file included from In file included from ls2geography/build.cc/usr/local/clang/include/absl/status/status.ha:b:2l67:
e:
 In file included from In file included from _s2geography/build.hN/usr/local/clang/include/absl/status/internal/status_internal.hu:l:l429a:
:
bIn file included from /usr/local/clang/include/absl/strings/cord.hl../src/s2/s2builderutil_s2point_vector_layer.h:e:667
25:      :
44| In file included from                       ^:../src/s2/base/logging.h
 :warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 667/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
s/usr/local/clang/include/absl/log/internal/check_op.ht:a504t:i1c:  Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
d/usr/local/clang/include/absl/log/internal/check_op.h :A498d:v35a:n cnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'A
ndR  e498a | d ( C h a r Iitnetr avt1o,r *i natb svl2_,n ocnonnusltl  cihta,r *s iazbes_lt_ nno_nbnyutlels )e;x
p      r| t                                           ^e
xt/usr/local/clang/include/absl/base/nullability.h): 241{: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                                  ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^In file included from 
s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                               In file included from  s2geography/build.cc : 2C:
oIn file included from rs2geography/build.hd:R4e:
pIn file included from *../src/s2/s2builderutil_s2point_vector_layer.h :a25b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hr:e21p:
);/usr/local/clang/include/absl/log/internal/check_op.h
:      505| :                                          ^1
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257
:23: note:   expanded from macro 'absl_nullable'505
 | A  B257S | L#_dLeOfGi_nIeN TaEbRsNlA_Ln_uClHlEaCbKl_eO P__NIuMlPlLa(bClhee
c      k| _                      ^L
T, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   iIn file included from ns2geography/accessors-geog.ccl:i2n:
eIn file included from  s2geography/accessors-geog.hc:o4n:
sIn file included from t../src/s2/s2convex_hull_query.he:x25p:
rIn file included from  ../src/s2/s2cap.hc:o30n:
sIn file included from t../src/s2/s1angle.h :c28h:
aIn file included from r../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :n29a:
m/usr/local/clang/include/absl/strings/cord.he:#929#:I26m:p lwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      929  | In file included from    s2geography/accessors.cc  :  2  :
v In file included from o s2geography/accessors.hi :d 4  :
S In file included from w s2geography/geography.ha :p\4(
:
I      In file included from n| ../src/s2/s2polygon.hl                               ^:i
34n:
eIn file included from R/usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.he::p25730*::
 23In file included from a:/usr/local/clang/include/absl/container/btree_map.hb :snote: 66expanded from macro 'absl_nullable'l:
_
In file included from n/usr/local/clang/include/absl/container/internal/btree.ho  :n25770n | :
#uIn file included from dle/usr/local/clang/include/absl/container/internal/layout.hlf: i198rn:
he/usr/local/clang/include/absl/strings/str_cat.hs :)a398;b:
s24l      :_| n                          ^uwarning: 
ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l/usr/local/clang/include/absl/base/nullability.h
a:b241l  :e398 22_ | : N  unote: lAexpanded from macro 'absl_nonnull'lla
bp  hl241ea
 | N#      udm| e                      ^(f
cionnes ta bcshla_rn*o nIn file included from anbus2geography/build.ccsll:l_ 2n_u:
NlIn file included from olns2geography/build.hanb:ull4el:
 
cIn file included from       _../src/s2/s2builderutil_s2point_vector_layer.h| s                     ^:t
r25 :
 In file included from /../src/s2/base/logging.h/: 21N:
OIn file included from L/usr/local/clang/include/absl/log/check.hI:N37T:
(In file included from r/usr/local/clang/include/absl/log/internal/check_impl.hu:n21In file included from t:
s2geography/accessors-geog.cci/usr/local/clang/include/absl/log/internal/check_op.h:m:2e505:
/:In file included from e1s2geography/accessors-geog.hx::p 4l:
iwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c../src/s2/s2convex_hull_query.hi
:t25:
/usr/local/clang/include/absl/log/internal/check_op.h)In file included from 
:../src/s2/s2cap.h      489:| :30                       ^47:

:In file included from  ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':28
257:
:In file included from 23../src/s2/s2point.h  ::489 27 | :
note:  expanded from macro 'absl_nullable'In file included from  
../src/s2/s2coder.h : 23   :
257 In file included from  | c/usr/local/clang/include/absl/status/status.h#o:dn67es:
ftIn file included from i /usr/local/clang/include/absl/status/internal/status_internal.hnT:e129& :
a/usr/local/clang/include/absl/strings/cord.h b:vs932l1:,_17n :uc lowarning: lntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]as
btl   e932 T | _2 N &u l  lvcao2bnl,set 
 c      co| h                      ^na
srt*  cahbasrl*_ naublslla_bnloen ndualtla (e)x pcrotnesxtt;)
       {|                  ^ 
  /usr/local/clang/include/absl/base/nullability.h :\257
:      23| :                                              ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241  :25722 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innuel laabbslle_ n_oNnunlullalb l_eN
o      n| n                      ^u
ll
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2geography/accessors.cc27::
2In file included from :
../src/s2/s2coder.hIn file included from :23s2geography/accessors.h:
:In file included from 4/usr/local/clang/include/absl/status/status.h:
:In file included from 67s2geography/geography.h:
:In file included from 4/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2polygon.h:
:34/usr/local/clang/include/absl/strings/cord.h:
:In file included from 934../src/s2/mutable_s2shape_index.h::3130::
 In file included from /usr/local/clang/include/absl/container/btree_map.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70  :
934In file included from  | /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 /usr/local/clang/include/absl/strings/str_cat.hv:o431i:d15 :s ewarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
data  (431c | o n scto ncshta rc*h aarb*s la_bnsull_lnaublllea bdlaet ad,a In file included from tsai(s2geography/build.ccz)e: _c2to:
 nnIn file included from s)ts2geography/build.h; :
{4       :
| r                              ^In file included from e
../src/s2/s2builderutil_s2point_vector_layer.ht/usr/local/clang/include/absl/base/nullability.h:u:r25257n:
: In file included from 23p../src/s2/base/logging.h:i:e c21note: eexpanded from macro 'absl_nullable':
_
.In file included from   d/usr/local/clang/include/absl/log/check.h257a: | t37#a:
d(In file included from e)f/usr/local/clang/include/absl/log/internal/check_impl.h;i :n}e21
 :
      a/usr/local/clang/include/absl/log/internal/check_op.h| b              ^:s
l505_:/usr/local/clang/include/absl/base/nullability.hn1:u:257l :lwarning: 23atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:b
 l/usr/local/clang/include/absl/log/internal/check_op.hnote: eexpanded from macro 'absl_nullable': 
497_  :N257u32 | l:#ld aebnote: fliexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'en
e
       a|   b                      ^s497
l | _ n uilnllaibnlee  c_oNnIn file included from uss2geography/accessors-geog.cclt:le2ax:
bpIn file included from lrs2geography/accessors-geog.he :c
4o      :
n| In file included from s                      ^../src/s2/s2convex_hull_query.ht
: 25c:
hIn file included from a../src/s2/s2cap.hr:*30 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23n:
aIn file included from m/usr/local/clang/include/absl/status/status.he:#67#:
IIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.hp:l29(:
 /usr/local/clang/include/absl/strings/cord.h : 935 : 11 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       935  |       \ 
c      h| a                               ^r
* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | s#edte_fdiantea (asbiszle__ntu lnl)a;b l e/ /_ NWurliltaeb ldea
t      a|                        ^t
o the resIn file included from us2geography/build.ccl:t2
:
      In file included from | s2geography/build.h          ^:
4:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builderutil_s2point_vector_layer.h::24125::
22In file included from :../src/s2/base/logging.h :note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 505a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l498l: 35_:N onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
ull  
498       | |                       ^ 
    int v1, int v2, const In file included from cs2geography/accessors-geog.cch:a2r:
*In file included from  s2geography/accessors-geog.ha:b4s:
lIn file included from _../src/s2/s2convex_hull_query.hn:o25n:
nIn file included from u../src/s2/s2cap.hl:l30 :
eIn file included from x../src/s2/s1angle.hp:r28t:
eIn file included from x../src/s2/s2point.ht:)27 :
{In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 937\:
35      :|                                    ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22  :937  | note:  expanded from macro 'absl_nonnull' 
    a241b | s#ld:e:fcionred _aibnstle_rnnoanln:u:lClo r_dNRoenpn*u lalb
s      l| _                     ^n
ullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CoIn file included from rs2geography/build.ccd:R2e:
pIn file included from *s2geography/build.h :a4b:
sIn file included from l../src/s2/s2builderutil_s2point_vector_layer.h_:n25u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/log/check.ho:l37d:
_In file included from r/usr/local/clang/include/absl/log/internal/check_impl.he:p21,:

      | /usr/local/clang/include/absl/log/internal/check_op.h                                   ^:
506:1/usr/local/clang/include/absl/base/nullability.h:: 257warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]23
: note: expanded from macro 'absl_nullable'  
506 |   A257B | S#Ld_eLfOiGn_eI NaTbEsRlN_AnLu_lClHaEbClKe_ O_PN_uIlMlPaLb(lCeh
e      c| k                      ^_
GE, >=)
      | ^In file included from 
s2geography/accessors-geog.cc:2:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :s2geography/accessors-geog.h488::432:
:In file included from  ../src/s2/s2convex_hull_query.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'25
:
In file included from ../src/s2/s2cap.h:30  :
488In file included from  | ../src/s2/s1angle.h : 28i:
nIn file included from l../src/s2/s2point.hi:n27e:
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from e/usr/local/clang/include/absl/status/status.hx:p67r:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
t/usr/local/clang/include/absl/strings/cord.h :c979h:a30r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_nulla  b979l | e   n a m e # # I m p l (                C o r d R e p *   a b s\l
_      n| o                               ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 257r:e23p:,  note: cexpanded from macro 'absl_nullable'o
ns  t257  | C#odredfziUnped aatbesSlc_onpuel&l asbcloep e_,N
u      l| l                             ^a
bl/usr/local/clang/include/absl/base/nullability.he:
241      :| 22                      ^:
 note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2geography/build.cc :a2b:
sIn file included from ls2geography/build.h_:n4o:
nIn file included from n../src/s2/s2builderutil_s2point_vector_layer.hu:l25l:
 In file included from _../src/s2/base/logging.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                     ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2geography/accessors-geog.cc489: | 2 :
 In file included from  s2geography/accessors-geog.h : 4 :
cIn file included from o../src/s2/s2convex_hull_query.hn:s25t:
 In file included from T../src/s2/s2cap.h1:&30 :
vIn file included from 1../src/s2/s1angle.h,: 28c:
oIn file included from n../src/s2/s2point.hs:t27 :
TIn file included from 2../src/s2/s2coder.h&: 23v:
2In file included from ,/usr/local/clang/include/absl/status/status.h :c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29c:
h/usr/local/clang/include/absl/strings/cord.ha:r982*: 39a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n982u | l l   e xvporitde xAtp)p e{n d T r e e\T
o      I| n                                              ^l
in/usr/local/clang/include/absl/base/nullability.he:d241(:C22o:r dnote: Rexpanded from macro 'absl_nonnull'e
p*   241a | b#sdle_fnionnen ualbls lt_rneoen,n
u      l| l                                      ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CoIn file included from rs2geography/build.ccd:R2e:
pIn file included from *s2geography/build.h :a4b:
sIn file included from l../src/s2/s2builderutil_s2point_vector_layer.h_:n25o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from t/usr/local/clang/include/absl/log/check.hr:e37e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hM:e21t:
h/usr/local/clang/include/absl/log/internal/check_op.ho:d506I:d1e:n twarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ie/usr/local/clang/include/absl/log/internal/check_op.hr: 497m:e32t:h onote: dexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL')
;
      |                                    ^  
497 | /usr/local/clang/include/absl/base/nullability.h : 241i:n22l:i nnote: eexpanded from macro 'absl_nonnull' 
co  n241s | t#edxepfri nceo nasbts lc_hnaorn*n ualbls l__Nnounlnlualbll
e       | n                     ^a
me##Impl(       In file included from  s2geography/accessors-geog.cc : 2 :
 In file included from  s2geography/accessors-geog.h : 4 :
 In file included from  ../src/s2/s2convex_hull_query.h :\25
:
      In file included from | ../src/s2/s2cap.h                               ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::25728::
23In file included from :../src/s2/s2point.h :note: 27expanded from macro 'absl_nullable':

In file included from ../src/s2/s2coder.h  :25723 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
s/usr/local/clang/include/absl/strings/cord.hl:_985n:u30l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e _  N985u | l l a b lveo
i      d|                        ^A
ppendTreeIn file included from (s2geography/build.ccC:o2r:
dIn file included from Rs2geography/build.he:p4*:
 In file included from a../src/s2/s2builderutil_s2point_vector_layer.hb:s25l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37t:
rIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.he:,21 :
M/usr/local/clang/include/absl/log/internal/check_op.he:t506h:o1d:I dewarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
if/usr/local/clang/include/absl/log/internal/check_op.hi:e498r: 35m:e tnote: hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'o
d);  
498       | |                               ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241i:n22t:  vnote: 1expanded from macro 'absl_nonnull',
 i  n241t |  #vd2e,f icnoen satb sclh_anro*n naublsll __nNoonnnnuullll 
e      In file included from x| s2geography/accessors.cc                     ^p:
r2t:
eIn file included from xs2geography/accessors.ht:)4 :
{In file included from  s2geography/geography.h :In file included from  4s2geography/accessors-geog.cc :
: In file included from 2 ../src/s2/s2polygon.h:
 :In file included from  34s2geography/accessors-geog.h :
: In file included from 4 ../src/s2/mutable_s2shape_index.h:
 :In file included from  30../src/s2/s2convex_hull_query.h :
: In file included from 25 /usr/local/clang/include/absl/container/btree_map.h:
 :In file included from \66../src/s2/s2cap.h
:
:      In file included from 30| /usr/local/clang/include/absl/container/internal/btree.h:
                                  ^:In file included from 
70../src/s2/s1angle.h:
/usr/local/clang/include/absl/base/nullability.h:In file included from :28/usr/local/clang/include/absl/container/internal/layout.h241:
::In file included from 19822../src/s2/s2point.h:
:/usr/local/clang/include/absl/strings/str_cat.h: :27note: 501:
expanded from macro 'absl_nonnull':In file included from 
32../src/s2/s2coder.h:  : 24123 | warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#In file included from 
d/usr/local/clang/include/absl/status/status.he:f  67i501:
n | In file included from ve/usr/local/clang/include/absl/status/internal/status_internal.h:o 29ia:
db/usr/local/clang/include/absl/strings/cord.hs :Al986p_:pn40eo:nn dnwarning: Putype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]il
elc   _e986sN | ( os t ndn :u:vslotilrdi
 nP      gr| *                     ^e p
aebnsdlT_rneoenTnouIlnll idneesdt(,C
o      r| d                               ^R
ep* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | t#rdeeef,i
n      e|  a                                       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2geography/accessors-geog.cce: 2a:
bIn file included from ss2geography/accessors-geog.hl:_4n:
oIn file included from n../src/s2/s2convex_hull_query.hn:u25l:
lIn file included from  ../src/s2/s2cap.h_:N30o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   stIn file included from as2geography/accessors.cct:i2c:
 In file included from bs2geography/accessors.ho:o4l:
 In file included from Gs2geography/geography.he:t4F:
lIn file included from a../src/s2/s2polygon.ht:A34u:
xIn file included from (../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from :/usr/local/clang/include/absl/container/btree_map.h::c66o:
rIn file included from d/usr/local/clang/include/absl/container/internal/btree.h_:i70n:
tIn file included from e/usr/local/clang/include/absl/container/internal/layout.hr:n198a:
l/usr/local/clang/include/absl/strings/str_cat.h:::636C:o29r:d Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
* ab  s636l | _vnooindn uSltlr Arpeppe,n
d      (| s                                                       ^t
d:/usr/local/clang/include/absl/base/nullability.h::s241t:r22i:n gnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  adbesslt_,n ocnonnusltl  A_lNpohnanNuulml&
       a| )                     ^;

      |                             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/build.cc::241In file included from 2:s2geography/accessors-geog.cc:
22:In file included from :2s2geography/build.h :
:note: In file included from expanded from macro 'absl_nonnull'4s2geography/accessors-geog.h
:
:In file included from   4../src/s2/s2builderutil_s2point_vector_layer.h241:
: | In file included from #25../src/s2/s2convex_hull_query.hd:
:eIn file included from 25f../src/s2/base/logging.h:
i:In file included from n21../src/s2/s2cap.he:
: In file included from 30a/usr/local/clang/include/absl/log/check.h:
b:In file included from s37../src/s2/s1angle.hl:
:_In file included from 28n/usr/local/clang/include/absl/log/internal/check_impl.h:
o:In file included from n21../src/s2/s2point.hn:
:u27l:
l/usr/local/clang/include/absl/log/internal/check_op.hIn file included from  :../src/s2/s2coder.h_507:N:23o1:
n:nIn file included from u /usr/local/clang/include/absl/status/status.hl:warning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]67

:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h:                       ^29507
:
 | /usr/local/clang/include/absl/strings/cord.hA:B1050S:L45_:L Owarning: Gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT E1050RIn file included from  | Ns2geography/accessors.cc A: L2 _:
 CIn file included from  Hs2geography/accessors.h E: C4 K:
 _In file included from  Os2geography/geography.h P: _4 I:
 MIn file included from  P../src/s2/s2polygon.h L: (34C :
h In file included from e ../src/s2/mutable_s2shape_index.h c:k 30 _:
 GIn file included from T ,/usr/local/clang/include/absl/container/btree_map.ha :b>66s):
l
In file included from :      /usr/local/clang/include/absl/container/internal/btree.h:| :s^70t
:
rIn file included from i/usr/local/clang/include/absl/container/internal/layout.hn/usr/local/clang/include/absl/log/internal/check_op.h:g:198_488:
v:/usr/local/clang/include/absl/strings/str_cat.hi32:e:637w :*note: 29 expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':a
 bwarning: s  ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_488
n | o n  n 637ui | lvnlloi ifndr eaSg tmrceAnoptpn)es;tn
de      (x| s                                            ^pt
rd /usr/local/clang/include/absl/base/nullability.h:c::o241sn:ts22rt:i  ncnote: gexpanded from macro 'absl_nonnull'h*
a   ar241b* | s# lda_enbfoisnnnle_u lnalbu sdlllea_snbtol,n encu olnnlas tm_ NeAol#np#nhuaIlNlum
mp      &l|                       ^(a
, 
        |                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' In file included from 
 s2geography/accessors-geog.cc :   2\241:

 | In file included from #      s2geography/accessors-geog.hd| :e                               ^f4i
:
nIn file included from e../src/s2/s2convex_hull_query.h /usr/local/clang/include/absl/base/nullability.h:a:25b257:
s:In file included from l23../src/s2/s2cap.h_::n 30note: o:
expanded from macro 'absl_nullable'nIn file included from n
../src/s2/s1angle.hu:  l28l257:
  | In file included from _#../src/s2/s2point.hNd:oe27fn:
niIn file included from nue../src/s2/s2coder.hl :la23b
:
s      lIn file included from _| n/usr/local/clang/include/absl/status/status.hu                     ^:l
67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
_/usr/local/clang/include/absl/strings/cord.hN:u1054l:l37a:b lwarning: eIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
s2geography/accessors.cc
      :| 2                       ^:
1054
In file included from  | s2geography/accessors.h : 4 :
 In file included from  s2geography/geography.h :a4b:
sIn file included from lIn file included from ../src/s2/s2polygon.h:s2geography/build.cc:::34c2:
o:
In file included from rIn file included from ../src/s2/mutable_s2shape_index.hds2geography/build.h:_:30i4:
n:
In file included from tIn file included from /usr/local/clang/include/absl/container/btree_map.he../src/s2/s2builderutil_s2point_vector_layer.h:r:66n25:
a:
In file included from lIn file included from /usr/local/clang/include/absl/container/internal/btree.h:../src/s2/base/logging.h:::70C21:
o:
In file included from rIn file included from /usr/local/clang/include/absl/container/internal/layout.hd/usr/local/clang/include/absl/log/check.h:R:198e37:
p:
/usr/local/clang/include/absl/strings/str_cat.h*In file included from : /usr/local/clang/include/absl/log/internal/check_impl.h639a::b2129s:
:/usr/local/clang/include/absl/log/internal/check_op.hl _:warning: n507type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:
n1n:u   l639lwarning:  |  vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]roe
ipd, /usr/local/clang/include/absl/log/internal/check_op.h
S:      t489| r                                    ^:A
47p/usr/local/clang/include/absl/base/nullability.h:p:e 241nnote: :d22(expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':s
 tnote: dexpanded from macro 'absl_nonnull'  :
:489  s | 241t  | r# idn eg f *i  naceobn ssatlb_ snTlo_1nnn&ou nvlnlu1 l,dl ecs ot_,nN oscnotnn usTlt2l& 
 Avl      2p| ,h                      ^ac
Nounms&t  ac,h
a      r*|                              ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 e  x241p | In file included from r#s2geography/accessors-geog.ccdt:ee2fx:
itIn file included from n)s2geography/accessors-geog.he : {4a :
b In file included from s ../src/s2/s2convex_hull_query.hl :_ n\25o
:
n      In file included from n| ../src/s2/s2cap.hu                                              ^:l
30l:
 /usr/local/clang/include/absl/base/nullability.hIn file included from _:../src/s2/s1angle.hN241:o:28n22:
In file included from ../src/s2/s2point.h:27:
In file included from n:../src/s2/s2coder.hu :lnote: 23lexpanded from macro 'absl_nonnull':


In file included from         /usr/local/clang/include/absl/status/status.h| 241:                     ^ | 67
#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :a1061b:s34l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nIn file included from us2geography/accessors.cc l:1061l2 |  :
 _In file included from  Ns2geography/accessors.hvo:on4in:
duIn file included from  ls2geography/geography.hCl:o
4p      :
y| In file included from T                     ^../src/s2/s2polygon.ho
:A34r:
rIn file included from a../src/s2/mutable_s2shape_index.hy:S30l:
oIn file included from w/usr/local/clang/include/absl/container/btree_map.hP:a66t:
hIn file included from (/usr/local/clang/include/absl/container/internal/btree.hc:h70a:
rIn file included from */usr/local/clang/include/absl/container/internal/layout.h :a198b:
s/usr/local/clang/include/absl/strings/str_cat.hl:_641n:o29n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 dst  )641  | cvoonisdt ;S
t      r| A                                 ^p
pe/usr/local/clang/include/absl/base/nullability.hn:d241(:s22t:d :note: :expanded from macro 'absl_nonnull's
tr  i241n | g#*d eafbisnle_ naobnsnlu_lnlo ndneusltl,  _cNoonnsntu lAll
p      h| a                     ^N
um& aIn file included from ,s2geography/build.cc
:      2| :
                            ^In file included from 
s2geography/build.h:4/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2builderutil_s2point_vector_layer.h::2225::
 In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b507s:l1_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 497_:N32o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l
      |                      ^  
497 |   inline constexpIn file included from rs2geography/accessors-geog.cc :c2o:
nIn file included from ss2geography/accessors-geog.hIn file included from t:s2geography/accessors.cc 4:c:
2hIn file included from :
a../src/s2/s2convex_hull_query.hIn file included from r:s2geography/accessors.h*25: :
4aIn file included from :
b../src/s2/s2cap.hIn file included from s:s2geography/geography.hl30:_:
4nIn file included from :
u../src/s2/s1angle.hIn file included from l:l../src/s2/s2polygon.h28a::
b34In file included from l:
e../src/s2/s2point.hIn file included from  :../src/s2/mutable_s2shape_index.hn27:a:
30mIn file included from :
e../src/s2/s2coder.h#In file included from :#/usr/local/clang/include/absl/container/btree_map.h23I:m:
p66lIn file included from :
(/usr/local/clang/include/absl/status/status.hIn file included from  :/usr/local/clang/include/absl/container/internal/btree.h 67: :
 70In file included from  :
/usr/local/clang/include/absl/status/internal/status_internal.h In file included from : /usr/local/clang/include/absl/container/internal/layout.h29 ::
 198/usr/local/clang/include/absl/strings/cord.h :
 :/usr/local/clang/include/absl/strings/str_cat.h 1078 :: 64633 :: 36  :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 
      1078|  |                                  ^ 646 
 | ai/usr/local/clang/include/absl/base/nullability.hbns:lli257:n::ec23 ov:rod i_dnote: iexpanded from macro 'absl_nullable' n
Stt  err257Anp | ap#le:dne:fdC(iosrntedd Ra:eb:pssl*t _ranibnsugll*l_ naaobbnsnllue_l n_lo NnTnualukllelRa edbpel(s)et ,
c o      cno| snts                      ^&t; 

A      l| p                                ^h
aN/usr/local/clang/include/absl/base/nullability.hu:mIn file included from 241&s2geography/build.cc: :22a2:,:
 
In file included from note:       expanded from macro 'absl_nonnull's2geography/build.h| 
                                   ^:
  4241/usr/local/clang/include/absl/base/nullability.h:
 | :#In file included from 241d../src/s2/s2builderutil_s2point_vector_layer.h:e:22f25:i:
 nIn file included from note: eexpanded from macro 'absl_nonnull'../src/s2/base/logging.h 
a:b  s21241l:
 | _In file included from #nd/usr/local/clang/include/absl/log/check.hoen:fni37unl:
el In file included from  a_/usr/local/clang/include/absl/log/internal/check_impl.hbNs:oln_21nnu:
oln/usr/local/clang/include/absl/log/internal/check_op.hln
:u      l507| l                     ^: 
_1N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll/usr/local/clang/include/absl/log/internal/check_op.h
:      498| :                     ^35
In file included from :s2geography/accessors-geog.cc :note: 2expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

In file included from s2geography/accessors-geog.h:4  :
498In file included from  | ../src/s2/s2convex_hull_query.h : 25 :
 In file included from  ../src/s2/s2cap.h :i30n:
tIn file included from  ../src/s2/s1angle.hv:128,:
 In file included from i../src/s2/s2point.hn:t27 :
vIn file included from 2../src/s2/s2coder.h,: 23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67 :
cIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.ha:r29*:
 /usr/local/clang/include/absl/strings/cord.ha:b1079s:l33_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  1079e | x p ratbesxlt:): c{o r d _ i n t e r n a l : : C o r d\R
e      p| *                                  ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   T241a | k#edReefpi(n)e  &a&b;s
l      _| n                                ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/geography.cc -o s2geography/geography.o
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l522l:
3      :|                       ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   In file included from As2geography/accessors-geog.ccB:S2L:
_In file included from Is2geography/accessors-geog.hN:T4E:
RIn file included from N../src/s2/s2convex_hull_query.hA:L25_:
XIn file included from (../src/s2/s2cap.hi:n30s:
eIn file included from r../src/s2/s1angle.ht:_28o:
rIn file included from _../src/s2/s2point.ha:s27:
sIn file included from i../src/s2/s2coder.hg:n23,:
 In file included from i/usr/local/clang/include/absl/status/status.hn:s67e:
r/usr/local/clang/include/absl/status/internal/status_internal.ht:_150o:r25_:a swarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
gn_i  m150p | l ,   c ocnosnts t& ,a bcsoln:s:tS t&a,t
u      s| *  ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l s  t509a | t u s ,   c o n s t  AcBhSaLr_*I NaTbEsRlN_AnLo_nAnTuTlRlI BpUrTeEf_iCxA)P;T
U      R| E                        ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull',
     241  |  # d e f i n e   a b s l _ n o n n u l l\ 
_      N| o                                                   ^n
nul/usr/local/clang/include/absl/container/internal/common.hl:
32      :| 9                     ^:
 note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #dIn file included from es2geography/accessors-geog.ccf:i2n:
eIn file included from  s2geography/accessors-geog.hA:B4S:
LIn file included from _../src/s2/s2convex_hull_query.hI:N25T:
EIn file included from R../src/s2/s2cap.hN:A30L:
_In file included from I../src/s2/s1angle.hF:_28f:
aIn file included from l../src/s2/s2point.hs:e27(:
iIn file included from f../src/s2/s2coder.h_:s23a:
tIn file included from i/usr/local/clang/include/absl/status/status.hs:f67i:
e/usr/local/clang/include/absl/status/internal/status_internal.hd:,150 :.58.:. )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
_VA_  A150R | G S _ _ 
c      o| n        ^s
t absl::StaIn file included from ts2geography/accessors.ccu:s2*:
 In file included from as2geography/accessors.hb:s4l:
_In file included from ns2geography/geography.ho:n4n:
uIn file included from l../src/s2/s2polygon.hl: 34s:
tIn file included from a../src/s2/mutable_s2shape_index.ht:u30s:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hc:o67n:
s/usr/local/clang/include/absl/container/internal/btree_container.ht: 522c:h3a:r *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl_  n522o | n n uAlBlS Lp_rIeNfTiExR)N;A
L      _| X                                                         ^(
in/usr/local/clang/include/absl/base/nullability.hs:e241r:t22_:o rnote: _expanded from macro 'absl_nonnull'a
ss  i241g | n#,d eifnisneer ta_bosrl__ansosningunl_li m_pNlo,n ncuolnls
t       | &                     ^,
 const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496In file included from  | s2geography/accessors-geog.cc#:d2e:
fIn file included from is2geography/accessors-geog.hn:e4 :
AIn file included from B../src/s2/s2convex_hull_query.hS:L25_:
IIn file included from N../src/s2/s2cap.hT:E30R:
NIn file included from A../src/s2/s1angle.hL:_28X:
(In file included from F../src/s2/s2point.hu:n27c:
,In file included from  ../src/s2/s2coder.hC:a23l:
l/usr/local/clang/include/absl/status/status.he:e725,: 38K:Q uwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, M  Q725u | a l ,s tKaVtailcu es,t aMtVuasl_uien,t e.r.n.a)l : : S t a\t
u      s| R        ^e
p* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2geography/accessors-geog.cc::5262::
3In file included from :s2geography/accessors-geog.h :4warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2convex_hull_query.h
:25:
In file included from ../src/s2/s2cap.h:  30526:
 | In file included from  ../src/s2/s1angle.h :A28B:
SIn file included from L../src/s2/s2point.h_:I27N:
TIn file included from E../src/s2/s2coder.hR:N23A:
L/usr/local/clang/include/absl/status/status.h_:X732(:i29n:s ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_or  _732a | s s isgtna,t iicn sceornts_to rs_tads:s:isgtnr_iinmgp*l ,a bcsoln_snto n&n,u lclo nEsmtp t&y,S
t      r| i  ^n
g(/usr/local/clang/include/absl/container/internal/btree_container.h):;509
:      52| :                            ^ 
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.h
:241:22:   509 | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(this)),       In file included from  s2geography/accessors-geog.cc : 2 :
 In file included from  s2geography/accessors-geog.h : 4 :
 In file included from  ../src/s2/s2convex_hull_query.h : 25 :
 In file included from  ../src/s2/s2cap.h :\30
:
      In file included from | ../src/s2/s1angle.h                                                   ^:
28:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/s2point.h::3127::
9In file included from :../src/s2/s2coder.h :23note: :
macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/status/status.h
:733:29   :31  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n733e |   A BsStLa_tIiNcT EcRoNnAsLt_ IsFt_dt:r:uset(riifn_gs*a taibssfli_endo,n n.u.l.l)  Miofv_esdaFtriosmfSiterdi
n      g| (        ^)
;
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2geography/accessors.cc241: | 2#:
dIn file included from es2geography/accessors.hf:i4n:
eIn file included from  s2geography/geography.ha:b4s:
lIn file included from _../src/s2/s2polygon.hn:o34n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l526
:      3| :                     ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assignIn file included from _s2geography/accessors-geog.cci:m2p:
lIn file included from ,s2geography/accessors-geog.h :c4o:
nIn file included from s../src/s2/s2convex_hull_query.ht: 25&:
,In file included from  ../src/s2/s2cap.hc:o30n:
sIn file included from t../src/s2/s1angle.h :&28,:

In file included from       ../src/s2/s2point.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~27
:
In file included from ../src/s2/s2coder.h  :52723 | :
 /usr/local/clang/include/absl/status/status.h : 751 : 61 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       751  |     tsrtuaet,i cf aulisnet)p;t
r      _| t                  ~~~~~~~~~~~~ 
Poi/usr/local/clang/include/absl/container/internal/btree_container.hn:t509e:r47T:o Rnote: eexpanded from macro 'ABSL_INTERNAL_X'p
(sta  t509u | s _ i n t e r n a l :A:BSStLa_tIuNsTREeRpN*A La_bAsTlT_RnIoBnUnTuEl_lC ArP)T;U
R      E| D                                                            ^_
BY/usr/local/clang/include/absl/base/nullability.h(:t241h:i22s: )note: )expanded from macro 'absl_nonnull',
     241  |  # d e f i n e   a b s l _ n o n n u l l\ 
_      N| o                                              ^~~~n
null
      |                      ^/usr/local/clang/include/absl/container/internal/btree_container.h
:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2geography/accessors-geog.cc511: | 2 :
 In file included from  s2geography/accessors-geog.h : 4 :
 In file included from  ../src/s2/s2convex_hull_query.h : 25A:
BIn file included from S../src/s2/s2cap.hL:_30I:
NIn file included from T../src/s2/s1angle.hE:R28N:
AIn file included from L../src/s2/s2point.h_:A27T:
TIn file included from R../src/s2/s2coder.hI:B23U:
T/usr/local/clang/include/absl/status/status.hE:_752C:A44P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_B  Y752( | t h isst)a)t)i c   c o n s t   s t a t u s _ i n t e r n a l :\:
S      t| a                                                   ^t
us/usr/local/clang/include/absl/container/internal/common.hR:e32p:*9 :a bnote: smacro 'ABSL_INTERNAL_IF_false' defined herel
_no   n32n | u#ldle fRienpeT oAPBoSiLn_tIeNrT(E
R      N| A                                           ^L
_I/usr/local/clang/include/absl/base/nullability.hF:_241f:a22l:s enote: (expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende,  a.b.s.l)_ n_o_nVnAu_lAlR G_SN_o_n
n      u| l        ^l

      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &In file included from ,s2geography/accessors-geog.cc :f2a:
lIn file included from ss2geography/accessors-geog.he:,4
:
      In file included from | ../src/s2/s2convex_hull_query.h  ^:
25:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2cap.h::50930::
52In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h509: | 23 :
  /usr/local/clang/include/absl/status/status.h : 1031 : 42 :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_I N1031T | EiRnNlAiLn_eA TcToRnIsBtU TsEt_aCtAuPsT_UiRnEtDe_rBnYa(lt:h:iSst)a)t,u s R e p *   a b s l _ n o n n u l l   S t a t u\s
:      :| R                                                   ^e
pT/usr/local/clang/include/absl/container/internal/common.ho:P32o:i9n:t enote: rmacro 'ABSL_INTERNAL_IF_false' defined here(

      |                                             ^32
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ IaFb_sfla_lnsoen(niufl_ls a_tNiosnfniueldl,
       .| ..)                      ^_
_VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTEIn file included from Rs2geography/accessors-geog.ccN:A2L:
_In file included from Xs2geography/accessors-geog.h(:i4n:
sIn file included from e../src/s2/s2convex_hull_query.hr:t25_:
oIn file included from r../src/s2/s2cap.h_:a30s:
sIn file included from i../src/s2/s1angle.hg:n28,:
 In file included from i../src/s2/s2point.hn:s27e:
rIn file included from t../src/s2/s2coder.h_:o23r:
_/usr/local/clang/include/absl/status/status.ha:s1038s:i33g:n _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl,  1038& | & ,   c osntsatt u&s,_ ifnatlesren,a
l      :| :  ^S
ta/usr/local/clang/include/absl/container/internal/btree_container.ht:u511s:R52e:p *note:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _511n | o n n u l l   r e p )A B{S
L      _| I                                ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:A Tnote: Texpanded from macro 'absl_nonnull'R
IB  U241T | E#_dCeAfPiTnUeR EaDb_sBlY_(ntohninsu)l)l)  _ N o n n u l l 
        |                       ^ 
           \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_In file included from Is2geography/build.ccF:_2t:
rIn file included from us2geography/build.he:(4i:
fIn file included from _../src/s2/s2builderutil_s2point_vector_layer.hs:a25t:
iIn file included from s../src/s2/base/logging.hf:i22e:
dIn file included from ,/usr/local/clang/include/absl/log/log.h :.209.:
.In file included from )/usr/local/clang/include/absl/log/internal/log_impl.h :i20f:
_In file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.ha:t63i:
sf/usr/local/clang/include/absl/log/internal/vlog_config.hi:e49d:
37      :|          ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | In file included from is2geography/accessors.ccn:t2 :
RIn file included from es2geography/accessors.hg:i4s:
tIn file included from es2geography/geography.hr:A4n:
dIn file included from I../src/s2/s2polygon.hn:i34t:
iIn file included from a../src/s2/mutable_s2shape_index.hl:i30z:
eIn file included from (/usr/local/clang/include/absl/container/btree_map.hV:L67o:
g/usr/local/clang/include/absl/container/internal/btree_container.hS:i542t:e3*:  awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
l_non  n542u | l l  AvB)S;L
_      I| N                                    ^T
In file included from Es2geography/accessors-geog.ccR/usr/local/clang/include/absl/base/nullability.h:N:2A241:
L:In file included from _22s2geography/accessors-geog.hX::( 4inote: :
nexpanded from macro 'absl_nonnull'In file included from s
../src/s2/s2convex_hull_query.he:  r25241t:
_ | In file included from o#../src/s2/s2cap.hrd:_ea30sf:
siIn file included from in../src/s2/s1angle.hge:n 28,a:
 bIn file included from si../src/s2/s2point.hln_:sn27eo:
rnIn file included from tn../src/s2/s2coder.h_u:ol23rl:
_ a/usr/local/clang/include/absl/status/status.hs_:sN1063io:gn13nn:_u ilwarning: mltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
p
      l| ,                     ^  
1063& | &c,o ncsotn scth a&r,*  faablssle_,n
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll   543S | t a t u s    MIn file included from  e ss2geography/build.cc s a: g2 e :
A In file included from s s2geography/build.hC :Stt4rru:
(eIn file included from 
)../src/s2/s2builderutil_s2point_vector_layer.h      ;:| 
            ^25      
:
| In file included from /usr/local/clang/include/absl/base/nullability.h                  ~~~~~../src/s2/base/logging.h:
:24122:/usr/local/clang/include/absl/container/internal/btree_container.h:
22:In file included from :511/usr/local/clang/include/absl/log/log.h ::47note: 209:expanded from macro 'absl_nonnull':
 
In file included from note:   /usr/local/clang/include/absl/log/internal/log_impl.hexpanded from macro 'ABSL_INTERNAL_X'241:
 | 20#:
  dIn file included from 511e/usr/local/clang/include/absl/log/absl_vlog_is_on.h | f :i 63n :
e   /usr/local/clang/include/absl/log/internal/vlog_config.ha b: s 63l _: nA43oBn:Sn Lu_warning: lItype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lN
 T_EN   RoN63nAn | L u_l AlT
eTx      Rp| Il                     ^Bi
UcTiEt_ CcAoPnTsUtReExDp_rB YV(LtohgiSsi)t)e)( c o n s t   c h a r *   a b s l _ n o n n u l l\ 
f      )| 
                                              ^~~~      
|                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |    In file included from  s2geography/build.cc : 2 :
 In file included from  s2geography/build.h : 4 :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 25 :
 In file included from f../src/s2/base/logging.ha:l22s:
eIn file included from )/usr/local/clang/include/absl/log/log.h;:
209      :
| In file included from                        ^/usr/local/clang/include/absl/log/internal/log_impl.h
:20:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h496::639:
: /usr/local/clang/include/absl/log/internal/vlog_config.hnote: :macro 'ABSL_INTERNAL_X' defined here96
:60:   warning: 496type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#d   e96f | i n ef rAiBeSnLd_ IiNnTtE RlNoAgL__iXn(tFeurnnca,l :C:aRlelgeies,t eKrQAunadlI,n iMtQiuaalli,z eK(VVaLlougeS,i tMeV*a laubes,l _.n.o.n)n u l l   v\)
;      
|               ^| 
                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |   In file included from  s2geography/build.cc : 2 :
 In file included from  s2geography/build.h : 4 :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 25 :
 In file included from  ../src/s2/base/logging.hf:a22l:
sIn file included from e/usr/local/clang/include/absl/log/log.h):;209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                  ~~~~~~:
20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/container/internal/btree_container.h::63509:
:47/usr/local/clang/include/absl/log/internal/vlog_config.h:: 119note: :expanded from macro 'ABSL_INTERNAL_X'15
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]509
 |      119  |      c o n sAtB ScLh_aIrN*T EaRbNsAlL__nAoTnTnRuIlBlU TcEo_nCsAtP TfUiRlEeD__;B
Y      (| t              ^h
is/usr/local/clang/include/absl/base/nullability.h):)241,: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u                                              ^~~~l
l _Nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l544l:
3      :|                       ^warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, In file included from &s2geography/build.cc&:,2 :
&In file included from &s2geography/build.h,: 4t:
rIn file included from u../src/s2/s2builderutil_s2point_vector_layer.he:,25 :
fIn file included from a../src/s2/base/logging.hl:s22e:
)In file included from ;/usr/local/clang/include/absl/log/log.h
:      209| :
                                                                              ^In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:/usr/local/clang/include/absl/container/internal/btree_container.h20::
496In file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h9::63 :
note: macro 'ABSL_INTERNAL_X' defined here
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:  37496: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine ABSL  _133I | NiTnEtR NRAeLg_iXs(tFeurnAcn,d ICnailtlieael,i zKeQ(uVaLlo,g SMiQtuea*l ,a bKsVla_lnuoen,n uMlVla lvu)e;,
       .| .                                    ^.
)   /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|          ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2geography/build.cc
:2:
In file included from s2geography/build.h  :5524 | :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.hA:B25S:
LIn file included from _../src/s2/base/logging.hI:N22T:
EIn file included from R/usr/local/clang/include/absl/log/log.hN:A209L:
_In file included from X/usr/local/clang/include/absl/log/internal/log_impl.h(:i20n:
sIn file included from e/usr/local/clang/include/absl/log/absl_vlog_is_on.hr:t63_:
o/usr/local/clang/include/absl/log/internal/vlog_config.hr:_157a:s11s:i gwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 in  s157e | rVtL_oogrS_iatses*i ganb_silm_pnlu,l l&a&b,l e& &S,e ttVrMuoed,u lfeaLlisset)H;e
a      d| F  ^o
rT/usr/local/clang/include/absl/container/internal/btree_container.he:s509t:O52n:l ynote: (expanded from macro 'ABSL_INTERNAL_X'

      |           ^
  509 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
 A  B257S | L#_dIeNfTiEnReN AaLb_sAlT_TnRuIlBlUaTbEl_eC A_PNTuUlRlEaDb_lBeY
(      t| h                      ^i
s)),   In file included from  s2geography/build.cc : 2 :
 In file included from  s2geography/build.h : 4 :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 25 :
 In file included from  ../src/s2/base/logging.h : 22 :
 In file included from  /usr/local/clang/include/absl/log/log.h\:
209      :
| In file included from                                                    ^/usr/local/clang/include/absl/log/internal/log_impl.h
:20:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h31::639:
:/usr/local/clang/include/absl/log/internal/vlog_config.h :note: 158macro 'ABSL_INTERNAL_IF_true' defined here:
15:    warning: 31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#d  e158f | i n e   AVBLSoLg_SIiNtTeE*R NaAbLs_lI_Fn_utlrluaeb(lief _vs)a;t
i      s| f              ^i
ed/usr/local/clang/include/absl/base/nullability.h,: 257.:.23.:)  note: iexpanded from macro 'absl_nullable'f
_s  a257t | i#sdfeifeidn
e       | a        ^b
sl_nullable _NulIn file included from ls2geography/accessors.cca:b2l:
eIn file included from 
s2geography/accessors.h      :| 4                      ^:

In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2/usr/local/clang/include/absl/container/internal/btree_container.h):
581      :| 3  ^:
 warning: /usr/local/clang/include/absl/log/internal/check_impl.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]51
:3: note:   expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'581
 |      A51B | S L _AIBNSTLE_RLNOAGL__IXN(TiEnRsNeArLt__CoHrE_CaKs_sOiPg(nC,h eicnks_eNrEt,_ o!r=_,a svsailg1n,_ hvianlt1__itmepxlt,,  &v&a,l 2c,o nvsatl 2&_,t
e      x| t  ^)

      | /usr/local/clang/include/absl/container/internal/btree_container.h  ^:
509:52:/usr/local/clang/include/absl/log/internal/check_op.h :68note: :expanded from macro 'ABSL_INTERNAL_X'22
: note:   expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'509
 |       68  |      w h i lAeB S(Lc_oInNsTtE RcNhAaLr_*A TaTbRsIlB_UnTuEl_lCaAbPlTeU RaEbDs_lB_Yl(otgh_iisn)t)e,r n a l _ c h e c k _ o p _ r e s u l t          \ 
        |                                                     ^ 
 \
/usr/local/clang/include/absl/container/internal/common.h      :| 31                     ^:
9: /usr/local/clang/include/absl/base/nullability.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here257
:23:    note: 31expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee fAiBnSeL _aIbNsTlE_RnNuAlLl_aIbFl_et r_uNeu(lilfa_bslaet
i      s| f                      ^i
ed, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   AIn file included from Bs2geography/accessors-geog.ccS:L2_:
IIn file included from Ns2geography/accessors-geog.hT:E4R:
NIn file included from A../src/s2/s2convex_hull_query.hL:_25X:
(In file included from i../src/s2/s2cap.hn:s31e:
rIn file included from t../src/s2/s1chord_angle.h_:o31r:
_In file included from a../src/s2/s2pointutil.hs:s27i:
g../src/s2/util/math/matrix3x3.hn:,276 :i5n:s ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_or../src/s2/base/logging.h_:a37s:s21i:g nnote: _expanded from macro 'S2_CHECK_NE'h
int   _37i | m#pdle,f i&n&e,  Sc2o_nCsHtE C&K,_
N      E|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~C
HEC  K582_ | N E 
        |                      ^ 
  /usr/local/clang/include/absl/log/check.h : 120 : 3 :   note:  expanded from macro 'CHECK_NE' 
 tr  u120e | ,   fAaBlSsLe_,L OcGo_nIsNtT_EiRtNeArLa_tCoHrE(ChKi_nNtE)_ IAMBPSLL(_(IvNaTlE1R)N,A L#_vCaOlM1M,A )(;v
a      l| 2                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
, #/usr/local/clang/include/absl/container/internal/btree_container.hv:a509l:247):
       | note:   ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/log/internal/check_impl.h:51  :5093 | :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
       51  |   A BASBLS_LI_NLTOEGR_NIANLT_EARTNTARLI_BCUHTEEC_KC_AOPPT(UCRhEeDc_kB_YN(Et,h i!s=),) ,v a l 1 ,   v a l 1 _ t e x t ,   v a l 2 ,   v a\l
2      _| t                                              ^~~~e
xt)
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.h::58175::361::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'

/usr/local/clang/include/absl/container/internal/btree_container.h:511   :7552 | :   note: Aexpanded from macro 'ABSL_INTERNAL_X'B
SL_  L511O | G _ I N T E R N A L _ACBHSELC_KI(N:T:EaRbNsAlL:_:AiTmTpRlIiBcUiTtE__cCaAsPtT<UcRoEnDs_tB Yc(htahri*s )a)b)s l _ n o n n u l l > (           \ 
        |                                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                                                   ^:
 note: /usr/local/clang/include/absl/container/internal/common.hexpanded from macro 'absl_nonnull':
32:9  :241  | note: #macro 'ABSL_INTERNAL_IF_false' defined hered
efi   n32e |  #adbesfli_nneo nAnBuSlLl_ I_NNToEnRnNuAlLl_
I      F| _                     ^f
alse(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from In file included from s2geography/accessors.cc/usr/local/clang/include/absl/container/internal/btree.h::270:
:
In file included from In file included from s2geography/accessors.h/usr/local/clang/include/absl/container/internal/layout.h::4198:
:
In file included from In file included from s2geography/geography.h/usr/local/clang/include/absl/strings/str_cat.h::4116:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::3423:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/mutable_s2shape_index.h::33533::
52In file included from :../src/s2/base/commandlineflags.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/flags/flag.h:110:29:   335 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       110  |  v o i d   S e t  F l a g ( a b s l : : F l a g < T > *  aabbssll:_:nionntn1u2l8l*  falbasgl,_ ncoonnnsutl lT &o uvt))  {{

            | |                             ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from In file included from ../src/s2/base/commandlineflags.hs2geography/accessors-geog.cc::212:
:
In file included from /usr/local/clang/include/absl/flags/flag.hs2geography/accessors-geog.h::1184::
29In file included from :../src/s2/s2convex_hull_query.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2loop.h:34:
In file included from   ../src/s2/mutable_s2shape_index.h118: | 30v:
oIn file included from i/usr/local/clang/include/absl/container/btree_map.hd: 66S:
eIn file included from t/usr/local/clang/include/absl/container/internal/btree.hF:l70a:
gIn file included from (/usr/local/clang/include/absl/container/internal/layout.ha:b198s:
lIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::F116l:
aIn file included from g/usr/local/clang/include/absl/strings/internal/stringify_sink.h<:T23>:
*/usr/local/clang/include/absl/strings/numbers.h :a340b:s53l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   340f | l a g ,   c o n s t   V &   v )   { 
        |                              ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241a | b#sdle:f:iunien ta1b2s8l*_ naobnsnlu_lnlo n_nNuolnln uolult
)       | {                     ^

      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.hIn file included from :s2geography/accessors-geog.cc4::
2In file included from :
../src/s2/s2polygon.hIn file included from :s2geography/accessors-geog.h34::
4In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2convex_hull_query.h41::
27In file included from :
../src/s2/s2cell_id.hIn file included from :../src/s2/s2loop.h43::
34In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/mutable_s2shape_index.h28::
30In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h27::
67In file included from :
../src/s2/s2coder.h:/usr/local/clang/include/absl/container/internal/btree_container.h23::
523In file included from :/usr/local/clang/include/absl/status/status.h31::67 :
warning: /usr/local/clang/include/absl/status/internal/status_internal.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]150
:58: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]523
 |       150  |          c o n s t   a b sfla:l:sSet,a tfuasl*s ea)b;s
l      _| n                              ^o
nnu/usr/local/clang/include/absl/container/internal/btree_container.hl:l496 :s9t:a tnote: umacro 'ABSL_INTERNAL_X' defined heres
, c  o496n | s#td ecfhianre*  AaBbSsLl__InNoTnEnRuNlAlL _pXr(eFfuinxc),; 
C      a| l                                                         ^l
ee/usr/local/clang/include/absl/base/nullability.h,: 241K:Q22u:a lnote: ,expanded from macro 'absl_nonnull' 
MQ  u241a | l#,d eKfVianleu ea,b sMlV_anlounen,u l.l. ._)N o n n u l\l

            | |         ^                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSIn file included from Ls2geography/accessors.cc_:I2N:
TIn file included from Es2geography/accessors.hR:N4A:
LIn file included from _s2geography/geography.hI:F4_:
tIn file included from r../src/s2/s2polygon.hu:e34(:
iIn file included from f../src/s2/mutable_s2shape_index.h_:s41a:
tIn file included from i../src/s2/s2cell_id.hs:f43i:
eIn file included from d../src/s2/s1angle.h,: 28.:
.In file included from .../src/s2/s2point.h): 27i:
fIn file included from _../src/s2/s2coder.hs:a23t:
i/usr/local/clang/include/absl/status/status.hs:f725i:e38d:
       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  725 |   static status_iIn file included from ns2geography/accessors-geog.cct:e2r:
nIn file included from as2geography/accessors-geog.hl::4::
SIn file included from t../src/s2/s2convex_hull_query.ha:t27u:
sIn file included from R../src/s2/s2loop.he:p34*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l524 :P3r:e pwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
eToMod  i524f | y ( 
A      B| S                                     ^L
_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Xexpanded from macro 'absl_nonnull'(
in  s241e | r#td_eofri_naes saibgsnl,_ nionnsneurltl_ o_rN_oansnsuilgln
_      i| m                     ^p
l, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   In file included from fs2geography/accessors.cca:l2s:
eIn file included from ,s2geography/accessors.h :t4r:
uIn file included from es2geography/geography.h):;4
:
      In file included from | ../src/s2/s2polygon.h                  ~~~~~~~~~~~~:
34:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/internal/btree_container.h::41511:
:In file included from 47../src/s2/s2cell_id.h:: 43:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h  :51127 | :
 In file included from  ../src/s2/s2coder.h: 23 :
 /usr/local/clang/include/absl/status/status.h : 732 : 29 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IN  T732E | R N AsLt_aAtTiTcR IcBoUnTsEt_ CsAtPdT:U:RsEtDr_iBnYg(*t haibss)l)_)n o n n u l l   E m p t y S t r i n g ( ) ; 
        | \                            ^

      |                                               ^~~~/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static con/usr/local/clang/include/absl/container/internal/btree_container.hs:t527 :s30t:d :warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
tri  n527g | *   a b s l _ n o n n u l l   M o v etdrFureo,m Sftarlisneg)(;)
;      
|                                    ^| 
                            ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496/usr/local/clang/include/absl/base/nullability.h::9241:: 22:note:  macro 'ABSL_INTERNAL_X' defined here
note: expanded from macro 'absl_nonnull'
  496   | 241# | d#edfeifnien eA BaSbLs_lI_NnToEnRnNuAlLl_ X_(NFounnncu,l lC
a      l| l                     ^e
e, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRe/usr/local/clang/include/absl/container/internal/btree_container.hp:*526 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
onnu  l526l |   r )A;B
S      L| _                                                            ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Xnote: (expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns,l _innosnenrutl_lo r__Naosnsniuglnl_
i      m| p                     ^l
, const &, const &,In file included from 
s2geography/accessors.cc      :| 2  ^:

In file included from s2geography/accessors.h:/usr/local/clang/include/absl/container/internal/btree_container.h4::
509In file included from :s2geography/geography.h52::4 :
In file included from note: ../src/s2/s2polygon.hexpanded from macro 'ABSL_INTERNAL_X':
34:
In file included from ../src/s2/mutable_s2shape_index.h:  41509:
 | In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from A../src/s2/s2point.hB:S27L:
_In file included from I../src/s2/s2coder.hN:T23E:
R/usr/local/clang/include/absl/status/status.hN:A752L:_44A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUTE  _752C | A P TsUtRaEtDi_cB Yc(otnhsits )s)t,a t u s _ i n t e r n a l : : S t a t u s R e p *\ 
a      b| s                                                   ^l
_n/usr/local/clang/include/absl/container/internal/common.ho:n31n:u9l:l  note: Rmacro 'ABSL_INTERNAL_IF_true' defined heree
pTo   P31o | i#ndteefri(n
e       | A                                           ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_I  F241_ | t#rdueef(iinfe_ saabtsils_fnioendn,u l.l. ._)N oinfn_uslalt
i      s| f                     ^i
ed
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_falsIn file included from es2geography/accessors.cc(:i2f:
_In file included from ss2geography/accessors.ha:t4i:
sIn file included from fs2geography/geography.hi:e4d:
,In file included from  ../src/s2/s2polygon.h.:.34.:
)In file included from  ../src/s2/mutable_s2shape_index.h_:_41V:
AIn file included from _../src/s2/s2cell_id.hA:R43G:
SIn file included from _../src/s2/s1angle.h_:
28      :
| In file included from         ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StIn file included from as2geography/accessors-geog.cct:u2s:
RIn file included from es2geography/accessors-geog.hp:*4 :
aIn file included from b../src/s2/s2convex_hull_query.hs:l27_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :S30t:
aIn file included from t/usr/local/clang/include/absl/container/btree_map.hu:s67::
:/usr/local/clang/include/absl/container/internal/btree_container.hR:e543p:T23o:P owarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
te  r543( | 
        |                                           ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    t241r | u#ed)e;f
i      n| e                      ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l496_:n9o:n nnote: umacro 'ABSL_INTERNAL_X' defined herel
l _  N496o | n#nduelfli
n      e|                       ^A
BSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de/usr/local/clang/include/absl/container/internal/btree_container.hf:i542n:e3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_non  n542u | l l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARIn file included from Gs2geography/accessors.ccS:_2_:

In file included from       s2geography/accessors.h| :        ^4
:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from In file included from s2geography/accessors-geog.cc../src/s2/s2cell_id.h::243:
:
In file included from In file included from s2geography/accessors-geog.h../src/s2/s1angle.h::428:
:
In file included from In file included from ../src/s2/s2convex_hull_query.h../src/s2/s2point.h::2727:
:
In file included from In file included from ../src/s2/s2loop.h../src/s2/s2coder.h::3423:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/status/status.h::301063:
:In file included from 13/usr/local/clang/include/absl/container/btree_map.h:: 67:
warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
542:3:  1063warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
ons  t542  | c h aArB*S La_bIsNlT_EnRoNnAnLu_lXl( iSntsaetruts_Moers_saasgseiAgsnC,S tirn(s
e      r| t            ^_
or_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n _note: iexpanded from macro 'absl_nonnull'm
pl  ,241  | &#&d,e fcionnes ta b&s,l _fnaolnsneu,l
l       | _  ^N
on/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l52
:       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/accessors.cc:2:
In file included from s2geography/accessors.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/accessors-geog.cc:2:
In file included from s2geography/accessors-geog.h:4:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defi/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/linear-referencing.cc -o s2geography/linear-referencing.o
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                     In file included from  s2geography/coverings.cc : 2\:

In file included from       s2geography/coverings.h| :                                                   ^4
:
In file included from ../src/s2/s2region_coverer.h/usr/local/clang/include/absl/container/internal/common.h::3132:
:In file included from 9../src/s2/s2cell.h:: 24:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here../src/s2/base/logging.h
:21:
In file included from    /usr/local/clang/include/absl/log/check.h32: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_op.hA:B41S:
LIn file included from _/usr/local/clang/include/absl/log/internal/strip.hI:N26T:
EIn file included from R/usr/local/clang/include/absl/log/internal/log_message.hN:A47L:
_In file included from I/usr/local/clang/include/absl/log/internal/structured_proto.hF:_27f:
aIn file included from l/usr/local/clang/include/absl/log/internal/proto.hs:e34(:
if/usr/local/clang/include/absl/types/span.h_:s212a:t22i:s fwarning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
d, .  .212. | )   _u_sViAn_gA RpGoSi_n_t
e      r|          ^=
 T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define abIn file included from ss2geography/build.ccl:_2n:
uIn file included from ls2geography/build.hl:a4b:
iIn file included from l../src/s2/s2builderutil_s2point_vector_layer.hi:t27y:
_In file included from u../src/s2/mutable_s2shape_index.hn:k30n:
oIn file included from w/usr/local/clang/include/absl/container/btree_map.hn: 67_:
N/usr/local/clang/include/absl/container/internal/btree_container.hu:l551l:_79u:n swarning: ppassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
cifi  e551d | 
        | A                                 ^B
SL_INTERNAL_XIn file included from (s2geography/coverings.cci:n2s:
eIn file included from rs2geography/coverings.ht:_4o:
rIn file included from _../src/s2/s2region_coverer.ha:s31s:
iIn file included from g../src/s2/s2cell.hn:,24 :
iIn file included from n../src/s2/base/logging.hs:e21r:
tIn file included from _/usr/local/clang/include/absl/log/check.ho:r37_:
aIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hs:i21g:
nIn file included from _/usr/local/clang/include/absl/log/internal/check_op.hi:m41p:
lIn file included from ,/usr/local/clang/include/absl/log/internal/strip.h :&26&:
,In file included from  /usr/local/clang/include/absl/log/internal/log_message.h&:&47,:
 In file included from f/usr/local/clang/include/absl/log/internal/structured_proto.ha:l27s:
eIn file included from ,/usr/local/clang/include/absl/log/internal/proto.h :t34r:
u/usr/local/clang/include/absl/types/span.he:)213;:
34      :|                                                                                ^
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:496:9  :213  | note:  macro 'ABSL_INTERNAL_X' defined here 
usi  n496g |  #cdoenfsitn_ep oAiBnStLe_rI N=T EcRoNnAsLt_ XT(*F uanbsl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
c, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSLIn file included from _s2geography/coverings.ccI:N2T:
EIn file included from Rs2geography/coverings.hN:A4L:
_In file included from I../src/s2/s2region_coverer.hF:_31t:
rIn file included from u../src/s2/s2cell.he:(24i:
fIn file included from _../src/s2/base/logging.hs:a21t:
iIn file included from s/usr/local/clang/include/absl/log/check.hf:i37e:
dIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :.21.:
.In file included from )/usr/local/clang/include/absl/log/internal/check_op.h :i41f:
_In file included from s/usr/local/clang/include/absl/log/internal/strip.ha:t26i:
sIn file included from f/usr/local/clang/include/absl/log/internal/log_message.hi:e47d:

In file included from       /usr/local/clang/include/absl/log/internal/structured_proto.h| :        ^27
:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733In file included from  | s2geography/build.ccc:o2n:
sIn file included from ts2geography/build.he:x4p:
rIn file included from  ../src/s2/s2builderutil_s2point_vector_layer.hS:p27a:
nIn file included from <../src/s2/mutable_s2shape_index.hT:>30 :
MIn file included from a/usr/local/clang/include/absl/container/btree_map.hk:e67S:
p/usr/local/clang/include/absl/container/internal/btree_container.ha:n551(:T3*:  awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
l_null  a551b | l e  ApBtSrL _AIBNSTLE_RANTATLR_IXB(UiTnEs_eLrItF_EoTrI_MaEs_sBiOgUnN,D ,i
n      s| e                              ^r
t_o/usr/local/clang/include/absl/base/nullability.hr:_257a:s23s:i gnote: nexpanded from macro 'absl_nullable'_
im  p257l | ,# d&e&f,i n&e& ,a bfsall_sneu,l ltarbulee) ;_
N      u| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
abl/usr/local/clang/include/absl/container/internal/btree_container.he:
511      :| 47                      ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))In file included from  s2geography/coverings.cc : 2 :
 In file included from  s2geography/coverings.h : 4 :
 In file included from  ../src/s2/s2region_coverer.h : 31 :
 In file included from  ../src/s2/s2cell.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
\In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                              ^~~~:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l552a:b79l:e 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                      ^

  552 |   ABSL_In file included from Is2geography/coverings.ccN:T2E:
RIn file included from Ns2geography/coverings.hA:L4_:
XIn file included from (../src/s2/s2region_coverer.hi:n31s:
eIn file included from r../src/s2/s2cell.ht:_24o:
rIn file included from _../src/s2/base/logging.ha:s21s:
iIn file included from g/usr/local/clang/include/absl/log/check.hn:,37 :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:e21r:
tIn file included from _/usr/local/clang/include/absl/log/internal/check_op.ho:r41_:
aIn file included from s/usr/local/clang/include/absl/log/internal/strip.hs:i26g:
nIn file included from _/usr/local/clang/include/absl/log/internal/log_message.hi:m47p:
lIn file included from ,/usr/local/clang/include/absl/log/internal/structured_proto.h :&27&:
,In file included from  /usr/local/clang/include/absl/log/internal/proto.h&:&34,:
 /usr/local/clang/include/absl/types/span.ht:r740u:e21,:  fwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
se)  ;740
 |        |                                                                                 ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
  T  *496  | a#bdself_innuel lAaBbSlLe_ IeNnTdE)R NnAoLe_xXc(eFputn c{,
       C| a                    ^l
le/usr/local/clang/include/absl/base/nullability.he:,257 :K23Q:u anote: lexpanded from macro 'absl_nullable',
 M  Q257u | a#ld,e fKiVnael uaeb,s lM_Vnaullulea,b l.e. ._)N u l l a b\l
e      
|               ^| 
                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAIn file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
L_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p,In file included from  s2geography/build.ccu:i2n:
tIn file included from 6s2geography/build.h4:_4t:
 In file included from v../src/s2/s2builderutil_s2point_vector_layer.h): 27{:

In file included from       ../src/s2/mutable_s2shape_index.h| :                          ^33
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/commandlineflags.h::24121::
22: /usr/local/clang/include/absl/flags/flag.hnote: :expanded from macro 'absl_nonnull'110
:29  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efine absl  _110n | ovnoniudl lS e_tNFolnangu(lalb
s      l| :                     ^:
Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnIn file included from us2geography/build.ccl:l2 :
pIn file included from )s2geography/build.h :{4
:
      In file included from | ../src/s2/s2builderutil_s2point_vector_layer.h                                   ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h::24141::
22In file included from :../src/s2/s2cell_id.h :43note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:  28241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
onn/usr/local/clang/include/absl/status/internal/status_internal.hu:l149l: 13_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
      |                        ^149
 | const char* absl_nonnull MakeCheckFailString(
      |             ^In file included from 
s2geography/geography.cc:2:
In file included from s2geography/geography.h/usr/local/clang/include/absl/base/nullability.h::4241:
:In file included from 22../src/s2/s2polygon.h:: 29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43  :
241In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h#:d19e:
fIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e57 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:n79u:
l/usr/local/clang/include/absl/base/internal/endian.hl: 270_:N27o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^270
 | inline voiIn file included from ds2geography/build.cc :S2t:
oIn file included from rs2geography/build.he:644:
(In file included from v../src/s2/s2builderutil_s2point_vector_layer.ho:i27d:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b41s:
lIn file included from _../src/s2/s2cell_id.hn:43o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from p../src/s2/s2point.h,: 27u:
iIn file included from n../src/s2/s2coder.ht:6234:
_In file included from t/usr/local/clang/include/absl/status/status.h :v67):
 /usr/local/clang/include/absl/status/internal/status_internal.h{:
150      :| 25                          ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   note: 150expanded from macro 'absl_nonnull' | 
     241  | c#odnesfti naeb salb:s:lS_tnaotnunsu*l la b_sNlo_nnnounlnlu
l      l|                       ^s
tatus, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2geography/geography.cc
:2  :
241In file included from  | s2geography/geography.h#:d4e:
fIn file included from i../src/s2/s2polygon.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l43_:
nIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:n19u:
lIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :_57N:
oIn file included from n/usr/local/clang/include/absl/hash/hash.hn:u89l:
lIn file included from 
/usr/local/clang/include/absl/hash/internal/hash.h      :| 90                     ^:

/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexprIn file included from  s2geography/coverings.ccs:t2r:
iIn file included from ns2geography/coverings.hg:_4v:
iIn file included from e../src/s2/s2region_coverer.hw: 31N:
uIn file included from l../src/s2/s2cell.hl:S24a:
fIn file included from e../src/s2/base/logging.hS:t21r:
iIn file included from n/usr/local/clang/include/absl/log/check.hg:V37i:
eIn file included from w/usr/local/clang/include/absl/log/internal/check_impl.h(:c21o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_op.ht: 41c:
hIn file included from a/usr/local/clang/include/absl/log/internal/strip.hr:*26 :
a/usr/local/clang/include/absl/log/internal/log_message.hb:s82l:_26n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble    82p | )   {L
o      g| M                                                     ^e
ssa/usr/local/clang/include/absl/base/nullability.hg:e257(:c23o:n snote: texpanded from macro 'absl_nullable' 
ch  a257r | *# daebfsiln_en oanbnsl_nullable _Nullable
      |                       ^
ull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2geography/build.cc :2note: :
expanded from macro 'absl_nonnull'In file included from 
s2geography/build.h:4  :
241In file included from  | ../src/s2/s2builderutil_s2point_vector_layer.h#:d27e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e44 :
aIn file included from b../src/s2/s2pointutil.hs:l27_:
no../src/s2/util/math/matrix3x3.hn:n276u:l5l:  _warning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnull  
276       | |                       ^ 
  S2_CHECK_NIn file included from Es2geography/coverings.cc(:d2e:
tIn file included from ,s2geography/coverings.h :V4T:
yIn file included from p../src/s2/s2region_coverer.he:(310:
)In file included from )../src/s2/s2cell.h :<24<:
 In file included from "../src/s2/base/logging.h :C21a:
nIn file included from '/usr/local/clang/include/absl/log/check.ht: 37i:
nIn file included from v/usr/local/clang/include/absl/log/internal/check_impl.he:r21s:
e/usr/local/clang/include/absl/log/internal/check_op.h.: 429D:e31t:e rwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nant   429= |   0 . " ;T
1       | v    ^1
, T2../src/s2/base/logging.h :v372:,21 :c onote: nexpanded from macro 'S2_CHECK_NE's
t    c37h | a#rd*e faibnsel _Sn2o_nCnHuElClK _eNxEp rCtHeExCtK)_ NAEB
S      L| _                    ^A
TTR/usr/local/clang/include/absl/log/check.hI:B120U:T3E:_ Nnote: Oexpanded from macro 'CHECK_NE'I
NLI  N120E | ; 
       A| B                              ^S
L_/usr/local/clang/include/absl/base/nullability.hL:O241G:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | C#HdEeCfKi_nNeE _aIbMsPlL_(n(ovnanlu1l)l,  _#Nvoanln1u,l l(
v      a| l                     ^2
), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOIn file included from Gs2geography/coverings.cc_:I2N:
TIn file included from Es2geography/coverings.hR:N4A:
LIn file included from _../src/s2/s2region_coverer.hC:H31E:
CIn file included from K../src/s2/s2cell.h_:O24P:
(In file included from C../src/s2/base/logging.hh:e21c:
kIn file included from _/usr/local/clang/include/absl/log/check.hN:E37,:
 In file included from !/usr/local/clang/include/absl/log/internal/check_impl.h=:,21 :
v/usr/local/clang/include/absl/log/internal/check_op.ha:l4321:,13 :v awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1
_te  x432t | ,c ovnaslt2 ,c hvaarl*2 _atbesxlt_)n
o      n| n  ^u
ll /usr/local/clang/include/absl/log/internal/check_op.hM:a68k:e22C:h enote: cexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'k
OpS   t68r | i n gw(hTi1l ev 1(,c oTn2s tv 2c,h
a      r| *            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241a | b#sdle_flionge_ ianbtselr_nnaoln_ncuhlelc k__Noopn_nruelslu
l      t|                       ^ 
         In file included from \s2geography/coverings.cc
:      2| :
                     ^In file included from 
s2geography/coverings.h:4:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2region_coverer.h::25731::
23In file included from :../src/s2/s2cell.h :24note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/logging.h:21  :
257In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s433l:_56n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   433_ | N u l l a b l e 
        |                        ^ 
                               const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2geography/build.cc::222::
 In file included from s2geography/build.hnote: :expanded from macro 'absl_nonnull'4
:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h  :24127 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f44i:
nIn file included from e../src/s2/s2pointutil.h :a27b:
s../src/s2/util/math/matrix3x3.hl:_276n:o5n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N../src/s2/base/logging.ho:n37n:u21l:l 
      note: | expanded from macro 'S2_CHECK_NE'                     ^

   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_texIn file included from ts2geography/coverings.cc,: 2v:
aIn file included from ls2geography/coverings.h2:,4 :
vIn file included from a../src/s2/s2region_coverer.hl:231_:
tIn file included from e../src/s2/s2cell.hx:t24):

In file included from       ../src/s2/base/logging.h| :  ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_op.h::3775:
:In file included from 61/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP':
451:1:    75warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S451L | _ALBOSGL__ILNOTGE_RINNATLE_RCNHAELC_KD(E:F:IaNbEs_lM:A:KiEm_pClHiEcCiKt__OcPa_sStT<RcIoNnGs_tE XcThEaRrN*( baobosll)_;n
o      n| n^u
ll/usr/local/clang/include/absl/log/internal/check_op.h>:(449 : 31 :   note: \expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

      |                                                             ^
  449 | /usr/local/clang/include/absl/base/nullability.h : 241e:x22t:e rnote: nexpanded from macro 'absl_nonnull' 
te  m241p | l#adteef icnoen satb sclh_anro*n naublsll __nNoonnnnuullll 
M      a| k                     ^e
CheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:4:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:28:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTIn file included from Es2geography/distance.cc_:C2A:
PIn file included from Ts2geography/distance.hU:R4E:
DIn file included from _s2geography/geography.hB:Y4(:
tIn file included from h../src/s2/s2polygon.hi:s29):
)In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h      :| 43                                                                ^~~~:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from In file included from s2geography/geography.ccs2geography/distance.h::24:
:
In file included from In file included from s2geography/geography.hs2geography/geography.h::44:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2polygon.h::2929:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/container/flat_hash_map.h::4343:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::1919:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5959:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::8282:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2323:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/crc/crc32c.h::3232:
:
In file included from /usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/strings/str_format.h::84380:
:In file included from 43/usr/local/clang/include/absl/strings/internal/str_format/bind.h:: 24:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/inlined_vector.h
:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h  :38035 | :
st/usr/local/clang/include/absl/types/span.hd::733::s31t:r iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]g
& Str  A733p | pceonndsFtoerxmpart (Ssptadn:<:Ts>t rMiankge*S paabns(lT_*n oanbnsull_ln udlslta,b
l      e|                                            ^p
tr/usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Anote: Texpanded from macro 'absl_nonnull'T
RI  B241U | T#Ed_eLfIiFnEeT IaMbEs_lB_OnUoNnDn,u
l      l|                                ^_
Non/usr/local/clang/include/absl/base/nullability.hn:u257l:l23
:       | note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(In file included from Ts2geography/distance.cc*: 2a:
bIn file included from ss2geography/distance.hl:_4n:
uIn file included from ls2geography/geography.hl:a4b:
lIn file included from e../src/s2/s2polygon.h :b29e:
gIn file included from i/usr/local/clang/include/absl/container/flat_hash_map.hn: 43A:
BIn file included from S/usr/local/clang/include/absl/container/hash_container_defaults.hL:_19A:
TIn file included from T/usr/local/clang/include/absl/container/internal/hash_function_defaults.hR:I59B:
UIn file included from T/usr/local/clang/include/absl/strings/cord.hE:_82L:
IIn file included from F/usr/local/clang/include/absl/crc/internal/crc_cord_state.hE:T23I:
MIn file included from E/usr/local/clang/include/absl/crc/crc32c.h_:B32O:
U/usr/local/clang/include/absl/strings/str_format.hN:D440,:
24      :|                      ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23  :440  | note: iexpanded from macro 'absl_nullable'n
t   F257P | r#idnetfFi(nset da:b:sFlI_LnEu*l laabbslle_ n_oNnunlullalb loeu
t      p| u                      ^t
, const FormatSpeIn file included from cs2geography/geography.cc<:A2r:
gIn file included from ss2geography/geography.h.:.4.:
>In file included from &../src/s2/s2polygon.h :f29o:
rIn file included from m/usr/local/clang/include/absl/container/flat_hash_map.ha:t43,:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                       ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/base/nullability.h::59241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 82:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
  In file included from 241/usr/local/clang/include/absl/crc/crc32c.h | :#32d:
eIn file included from f/usr/local/clang/include/absl/strings/str_format.hi:n84e:
 In file included from a/usr/local/clang/include/absl/strings/internal/str_format/bind.hb:s24l:
_In file included from n/usr/local/clang/include/absl/container/inlined_vector.ho:n56n:
uIn file included from l/usr/local/clang/include/absl/container/internal/inlined_vector.hl: 35_:
N/usr/local/clang/include/absl/types/span.ho:n740n:u21l:l 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^

  740 |                  T* absl_nullable end) noexcept {
      |                     ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/distance.cc::2572::
23In file included from :s2geography/distance.h :4note: :
expanded from macro 'absl_nullable'In file included from 
s2geography/geography.h:4  :
257In file included from  | ../src/s2/s2polygon.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/container/flat_hash_map.hn:e43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l59a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he: 82_:
NIn file included from u/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/crc/crc32c.he:
32      :
| /usr/local/clang/include/absl/strings/str_format.h                      ^:
469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2geography/geography.cc  :5032 | :
 In file included from  s2geography/geography.hF:o4r:
mIn file included from a../src/s2/s2polygon.ht:R29a:
wIn file included from S/usr/local/clang/include/absl/container/flat_hash_map.hi:n43k:
(In file included from T/usr/local/clang/include/absl/container/hash_container_defaults.h*: 19a:
bIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:_59n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u82l:
lIn file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hr:a23w:
)In file included from  /usr/local/clang/include/absl/crc/crc32c.h :/32/:
 In file included from N/usr/local/clang/include/absl/strings/str_format.hO:L84I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/str_format/bind.h
:      24| :
                   ^In file included from 
/usr/local/clang/include/absl/container/inlined_vector.h:56/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/inlined_vector.h::2235::
 /usr/local/clang/include/absl/types/span.hnote: :expanded from macro 'absl_nonnull'794
:8:   241 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin  e794  | a b s l _Tn*o nanbuslll_ n_uNlolnanbullel 
p      t| r                     ^ 
ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2geography/predicates.cc -o s2geography/predicates.o
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfiedIn file included from ,s2geography/distance.cc :.2.:
.In file included from )s2geography/distance.h :i4f:
_In file included from ss2geography/geography.ha:t4i:
sIn file included from f../src/s2/s2polygon.hi:e29d:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h| :        ^43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2geography/build.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::231:
:
In file included from s2geography/build.h:/usr/local/clang/include/absl/synchronization/mutex.h5::
489In file included from :../src/s2/s2builderutil_s2polygon_layer.h14::48 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2polygon.h
:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:  45489:
 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 148 : 3 :  vwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
d (*a  b148s | l _ nAuBlSlLa_bIlNeT EiRnNvAaLr_iXa(nitn)s(evroti_do*r _aabsssli_gnnu,l lianbsielritt_yo_ru_naksnsoiwgnn)_,i
m      p| l             ^,
 con/usr/local/clang/include/absl/base/nullability.hs:t257&:,23 :c onote: nexpanded from macro 'absl_nullable's
t&  ,257  | t#rdueef,i
n      e|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bs  l149_ | n u l l a b l e   _ N u l l a b l e 
t      r| u                      ^e
, ABSL_IIn file included from Ns2geography/distance.ccT:E2R:
NIn file included from As2geography/distance.hL:_4S:
IIn file included from Ns2geography/geography.hG:L4E:
_In file included from A../src/s2/s2polygon.hR:G29(:
)In file included from )/usr/local/clang/include/absl/container/flat_hash_map.h;:
43      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::13559::
11In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
135/usr/local/clang/include/absl/synchronization/mutex.h | : 489 : 45 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
  t  h489i | s ) ) )   A BvSoLi_dA T(T*RaIbBsUlT_En_uLlIlFaEbTlIeM Ei_nBvOaUrNiDa n{t ) ( v o i d *   a b s l _ n u l l a b i l i t y _ u n k n o\w
n      )| ,          ^~~~

      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
Null_unspecifi/usr/local/clang/include/absl/container/internal/raw_hash_map.he:d153
:      3| :                                 ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_XIn file included from (s2geography/distance.cci:n2s:
eIn file included from rs2geography/distance.ht:_4o:
rIn file included from _s2geography/geography.ha:s4s:
iIn file included from g../src/s2/s2polygon.hn:,29 :
iIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hs:e43r:
tIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.ho:r19_:
aIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:i59g:
nIn file included from _/usr/local/clang/include/absl/strings/cord.hi:m94p:
lIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t490&:,13 :& &warning: ,type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
fals  e490, | 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.hv:o133i:d52*:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  u133l | l a b i l i t y _ u nAkBnSoLw_nI NaTrEgR)N;A
L      _| A            ^T
TRI/usr/local/clang/include/absl/base/nullability.hB:U289T:E34_:C Anote: Pexpanded from macro 'absl_nullability_unknown'T
URE  D289_ | B#Yd(etfhiinse) )a,b s l _ n u l l a b i l i t y _ u n k n o w n   _ N u\l
l      _| u                                                   ^n
sp/usr/local/clang/include/absl/container/internal/common.he:c32i:f9i:e dnote: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                                  ^
   32 | #define ABSL_INTERNAL_IF_fIn file included from as2geography/distance.ccl:s2e:
(In file included from is2geography/distance.hf:_4s:
aIn file included from ts2geography/geography.hi:s4f:
iIn file included from e../src/s2/s2polygon.hd:,29 :
.In file included from ./usr/local/clang/include/absl/container/flat_hash_map.h.:)43 :
_In file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hV:A19_:
AIn file included from R/usr/local/clang/include/absl/container/internal/hash_function_defaults.hG:S59_:
_In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94        ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 499s2geography/build.cc::352::
 In file included from warning: s2geography/build.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h  :49948 | :
 In file included from  ../src/s2/s2polygon.hv:o29i:
dIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.hE:n45a:
b/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:e153D:e3b:u gwarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
g(c  o153n | s t  AcBhSaLr_*I NaTbEsRlN_AnLu_lXl(aibnlsee rnta_moer)_;a
s      s| i                                  ^g
n,/usr/local/clang/include/absl/base/nullability.h :i257n:s23e:r tnote: _expanded from macro 'absl_nullable'o
r_  a257s | s#idgenf_iinmep la,b sclo_nnsutl&l,a b&l&e,  _fNaullslea,b
l      e| 
  ^      
|                       ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {          In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from \/usr/local/clang/include/absl/container/flat_hash_map.h
:      43| :
               ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:/usr/local/clang/include/absl/container/internal/common.h19::
31In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h9::59 :
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
   /usr/local/clang/include/absl/synchronization/mutex.h31: | 549#:d40e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 AB  S549L | _ I NsTtEaRtNiAcL _vIoFi_dt rIunec(riefm_esnattSiysnfciheSde,m (.M.u.t)e xi*f _asbastli_snfoinendu
l      l|          ^m
u,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2geography/build.cc241: | 2#:
dIn file included from es2geography/build.hf:i5n:
eIn file included from  ../src/s2/s2builderutil_s2polygon_layer.ha:b48s:
lIn file included from _../src/s2/s2polygon.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l45 :
_/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:o153n:n3u:l lwarning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                      ^
  153 |   ABSL_INTIn file included from Es2geography/distance.ccR:N2A:
LIn file included from _s2geography/distance.hX:(4i:
nIn file included from ss2geography/geography.he:r4t:
_In file included from o../src/s2/s2polygon.hr:_29a:
sIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.hi:g43n:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hi:n19s:
eIn file included from r/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:_59o:
rIn file included from _/usr/local/clang/include/absl/strings/cord.ha:s94s:
iIn file included from g/usr/local/clang/include/absl/strings/internal/cordz_info.hn:_31i:
m/usr/local/clang/include/absl/synchronization/mutex.hp:l550,: 64c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
&, &  &550, |   f a l s e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     154  |                                    btarsuee_,i nAtBeSrLn_aIlN:T:EPReNrATLh_rSeIaNdGSLyEn_cAhR*G (a)b)s;l
_      n| o                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 135w:)11;:
       note: | expanded from macro 'ABSL_INTERNAL_X'                                                               ^

/usr/local/clang/include/absl/base/nullability.h:  241135: | 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #tdheifsi)n)e)  aAbBsSlL__nAoTnTnRuIlBlU T_EN_oLnInFuElTlI
M      E| _                     ^B
OUND {              In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h\:
29      :
| In file included from           ^~~~/usr/local/clang/include/absl/container/flat_hash_map.h
:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull/usr/local/clang/include/absl/container/internal/raw_hash_map.h :_156N:o52n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l

      |                      ^  
156 |         In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from fs2geography/geography.ha:l4s:
eIn file included from ,../src/s2/s2polygon.h :A29B:
SIn file included from L/usr/local/clang/include/absl/container/flat_hash_map.h_:I43N:
TIn file included from E/usr/local/clang/include/absl/container/hash_container_defaults.hR:N19A:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hS:I59N:
GIn file included from L/usr/local/clang/include/absl/strings/cord.hE:_94A:
RIn file included from G/usr/local/clang/include/absl/strings/internal/cordz_info.h(:)31):
;/usr/local/clang/include/absl/synchronization/mutex.h
:      552| :                                                   ^64
: /usr/local/clang/include/absl/container/internal/raw_hash_map.hwarning: :120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERNAL_A  T552T | R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,              b a s e _ i n t e r n a l : : P e r T h\r
e      a| d                                              ^~~~S
ynch* ab/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l157_:n3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l /usr/local/clang/include/absl/container/internal/raw_hash_map.hw:,135
:      16| :                                                               ^ 
note: expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/base/nullability.h:241  :13522 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dtehfiisn)e) )a bAsBlS_Ln_oAnTnTuRlIlB U_TNEo_nLnIuFlElT
I      M| E                     ^_
BOUND {                              \
      In file included from | s2geography/distance.cc               ^:
2:
In file included from /usr/local/clang/include/absl/container/internal/common.hs2geography/distance.h::314::
9In file included from :s2geography/geography.h :note: 4macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from ../src/s2/s2polygon.h:   2931:
 | In file included from #/usr/local/clang/include/absl/container/flat_hash_map.hd:e43f:
iIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.he: 19A:
BIn file included from S/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:_59I:
NIn file included from T/usr/local/clang/include/absl/strings/cord.hE:R94N:
AIn file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:I31F:
_/usr/local/clang/include/absl/synchronization/mutex.ht:r556u:e38(:i fwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
atis  f556i | e d ,v o.i.d. )L oicfk_SslaotwiLsofoipe(dS
y      n| c        ^h
WaitParams* aIn file included from bs2geography/build.ccs:l2_:
nIn file included from os2geography/build.hn:n5u:
lIn file included from l../src/s2/s2builderutil_s2polygon_layer.h :w48a:
iIn file included from t../src/s2/s2polygon.hp:,29 :
iIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.ht: 45f:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:g157s:)3;:
       warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]                                     ^

/usr/local/clang/include/absl/base/nullability.h:241  :15722 | :   note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ Xa(bisnls_enrotn_nourl_la s_sNiognnn,u liln
s      e| r                     ^t
_or_assign_impl, const&In file included from ,s2geography/distance.cc :&2&:
,In file included from  s2geography/distance.ht:r4u:
eIn file included from ,s2geography/geography.h
:      4| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/s2polygon.h:29  :
158In file included from  | /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
tIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hu:e31,:
 /usr/local/clang/include/absl/synchronization/mutex.hA:B558S:L35_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L558_ | S I NbGoLoEl_ ALRoGc(k)S)l;o
w      W| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
hDe/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:d135l:i11n:e (note: Mexpanded from macro 'ABSL_INTERNAL_X'u
How   a135b | s l _ n o n n u l l  thhoiws,)
)      )|                                    ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241A:T22T:R Inote: Bexpanded from macro 'absl_nonnull'U
TE  _241L | I#FdEeTfIiMnEe_ BaObUsNlD_ n{o n n u l l   _ N o n n u l l 
        |                       ^ 
           In file included from \s2geography/distance.cc
:      2| :
          ^~~~In file included from 
s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h#:d161e:f52i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl  _161n | u l l a b l e   _ N u l l a b l e 
       f| a                      ^l
se, ABSL_INTERNAL_SINGLE_ARG()In file included from )s2geography/distance.cc;:
2      :
| In file included from                                                    ^s2geography/distance.h
:4/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 120s2geography/geography.h::94::
 In file included from ../src/s2/s2polygon.hnote: :macro 'ABSL_INTERNAL_X' defined here29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:  43120:
 | In file included from #/usr/local/clang/include/absl/container/hash_container_defaults.hd:e19f:
iIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.he: 59A:
BIn file included from S/usr/local/clang/include/absl/strings/cord.h:L94_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hT:E31R:
N/usr/local/clang/include/absl/synchronization/mutex.hA:L562_:X23(:F uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
, Ca  l562l | e e ,v oKiQdu aLlo,c kVSQluoawl(,M uKHVoawl uaeb,s lV_Vnaolnuneu,l lT ahiolw,,  .c.o.n)s t\ 
C      o| n        ^d
ition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull /usr/local/clang/include/absl/container/internal/raw_hash_map.hh:o160w:,3 :c owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
t Co  n160d | i t iAoBnS*L _aIbNsTlE_RnNuAlLl_aXb(lien sceorntd_,o
r      _| a                                                         ^s
s/usr/local/clang/include/absl/base/nullability.hi:g257n:,23 :i nnote: sexpanded from macro 'absl_nullable'e
rt  _257o | r#_daesfsiingen _aibmspll_,n u&l&l,a bcloen s_tN&u,l lfaabllsee
,      
|                             ^| 
  ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSIn file included from Ls2geography/distance.cc_:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(baseI_interNnTaElR:N:APLe_rATThTrReIaBdUSTyEn_cChA*P TaUbRsElD__nBoYn(ntuhlils )s)),; 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                                                   ^s
l_nonnu/usr/local/clang/include/absl/container/internal/common.hl:l32 :_9N:o nnote: nmacro 'ABSL_INTERNAL_IF_false' defined hereu
ll
      |                      ^   
32 | #define ABSL_INTIn file included from Es2geography/distance.ccR:N2A:
LIn file included from _s2geography/distance.hI:F4_:
fIn file included from as2geography/geography.hl:s4e:
(In file included from i../src/s2/s2polygon.hf:_29s:
aIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.hi:s43f:
iIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hd:,19 :
.In file included from ./usr/local/clang/include/absl/container/internal/hash_function_defaults.h.:)59 :
_In file included from _/usr/local/clang/include/absl/strings/cord.hV:A94_:
AIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hG:S31_:
_/usr/local/clang/include/absl/synchronization/mutex.h
:      580| :        ^34
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PeIn file included from rs2geography/build.ccT:h2r:
eIn file included from as2geography/build.hd:S5y:
nIn file included from c../src/s2/s2builderutil_s2polygon_layer.hh:*48 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l45a:
b/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:e160 :W3a:k ewarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
(
      |                                  ^  
160 | /usr/local/clang/include/absl/base/nullability.h : 257A:B23S:L _note: Iexpanded from macro 'absl_nullable'N
TE  R257N | A#Ld_eXf(iinnes earbts_lo_rn_ualslsaibglne,  _iNnuslelratb_loer
_      a| s                      ^s
ign_impIn file included from ls2geography/distance.cc,: 2&:
&In file included from ,s2geography/distance.h :c4o:
nIn file included from ss2geography/geography.ht:&4,:
 In file included from f../src/s2/s2polygon.ha:l29s:
eIn file included from ,/usr/local/clang/include/absl/container/flat_hash_map.h
:      43| :
  ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 135/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::1659::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'ABSL_INTERNAL_X':
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31135:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 581 : 38 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 th  i581s | ) ) )   A B SbLa_sAeT_TiRnItBeUrTnEa_lL:I:FPEeTrITMhEr_eBaOdUSNyDn c{h *   a b s l _ n o n n u l l   w ) ; 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :\ 
note:       expanded from macro 'absl_nonnull'| 
               ^
  241/usr/local/clang/include/absl/container/internal/common.h | :#32d:e9f:i nnote: emacro 'ABSL_INTERNAL_IF_false' defined here 
abs   l32_ | n#odnenfuilnle  _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_IF_false(if_satisfied, ...) __In file included from Vs2geography/distance.ccA:_2A:
RIn file included from Gs2geography/distance.hS:_4_:

In file included from       s2geography/geography.h| :        ^4
:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  In file included from /s2geography/build.cc/: 2u:
sIn file included from es2geography/build.hd: 5f:
oIn file included from r../src/s2/s2builderutil_s2polygon_layer.h :C48o:
nIn file included from d../src/s2/s2polygon.hV:a29r:
-In file included from >/usr/local/clang/include/absl/container/flat_hash_map.hM:u45t:
e/usr/local/clang/include/absl/container/internal/raw_hash_map.hx: 163t:r51a:n swarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
r
      |                      ^163
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e ftirnuee ,a bAsBlS_Ln_oInNnTuElRlN A_LN_oSnInNuGlLlE
_      A| R                     ^G
());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
In file included from   s2geography/distance.cc120: | 2#:
dIn file included from es2geography/distance.hf:i4n:
eIn file included from  s2geography/geography.hA:B4S:
LIn file included from _../src/s2/s2polygon.hI:N29T:
EIn file included from R/usr/local/clang/include/absl/container/flat_hash_map.hN:A43L:
_In file included from X/usr/local/clang/include/absl/container/hash_container_defaults.h(:F19u:
nIn file included from c/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,: 59C:
aIn file included from l/usr/local/clang/include/absl/strings/cord.hl:e94e:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hK:Q31u:
a/usr/local/clang/include/absl/synchronization/mutex.hl:,586 :V43Q:u awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 KV  a586l | u e ,v oViVdalue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign,  inFseerr(tb_aosre__aisnstiegrnn_ailm:p:lP,e r&T&h,r ecaodnSsytn&c,h *f aalbssel,_
n      o| n  ^n
ull
/usr/local/clang/include/absl/container/internal/raw_hash_map.h      :| 135                                          ^:
16: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X':
241:22:   note: 135expanded from macro 'absl_nonnull' | 
      241  |  # d e f itnhei sa)b)s)l _AnBoSnLn_uAlTlT R_INBoUnTnEu_lLlI
F      E| T                     ^I
ME_BOUND {                       In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h :\4
:
      In file included from | s2geography/geography.h               ^:
4:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/common.h::2931:
:In file included from 9/usr/local/clang/include/absl/container/flat_hash_map.h:: 43:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from    /usr/local/clang/include/absl/container/internal/hash_function_defaults.h31: | 59#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:I590N:T40E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_IF_  t590r | u e (eixfp_lsiactiits fMiuetde,x (.c.o.n)s ti fv_oslaattile iMsuftieexd*
       a| b        ^s
l_nullable /*ignored*/) {}
      |                                        ^In file included from 
s2geography/build.cc:2/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257s2geography/build.h::235::
 In file included from note: ../src/s2/s2builderutil_s2polygon_layer.hexpanded from macro 'absl_nullable':
48:
  In file included from 257../src/s2/s2polygon.h | :#29d:
eIn file included from f/usr/local/clang/include/absl/container/flat_hash_map.hi:n45e:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b162s:l3_:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
able _  N162u | l l aAbBlSeL
_      I| N                      ^T
ERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_asIn file included from ss2geography/distance.cci:g2n:
_In file included from is2geography/distance.hm:p4l:
,In file included from  s2geography/geography.h&:&4,:
 In file included from c../src/s2/s2polygon.ho:n29s:
tIn file included from &/usr/local/clang/include/absl/container/flat_hash_map.h,: 43t:
rIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.he:,19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h  ^:
59:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/strings/cord.h::13394::
52In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :note: 31expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/synchronization/mutex.h:624:  68133: |   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        624  | A B SeLx_pIlNiTcEiRtN AMLu_tAeTxTLRoIcBkU(TMEu_tCeAxP&T UmRuE DA_BBSYL(_tIhNiTsE)R)N,A L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t h\i
s      )| )                                                   ^

      |                                                                    ^~~~/usr/local/clang/include/absl/container/internal/common.h
:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if/usr/local/clang/include/absl/synchronization/mutex.h_:s635a:t29i:s fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
d, .  .635. | )   iefx_pslaitciistf iMeudt
e      x| L        ^o
ck(Mutex* absl_nonnIn file included from us2geography/build.ccl:l2 :
mIn file included from us2geography/build.h): 5A:
BIn file included from S../src/s2/s2builderutil_s2polygon_layer.hL:_48E:
XIn file included from C../src/s2/s2polygon.hL:U29S:
IIn file included from V/usr/local/clang/include/absl/container/flat_hash_map.hE:_45L:
O/usr/local/clang/include/absl/container/internal/raw_hash_map.hC:K164_:F3U:N Cwarning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]I
ON(mu  )164
 |        |                             ^
 A/usr/local/clang/include/absl/base/nullability.hB:SL_241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
INTERNAL_In file included from Xs2geography/distance.cc(:i2n:
sIn file included from es2geography/distance.hr:t4_:
oIn file included from rs2geography/geography.h_:a4s:
sIn file included from i../src/s2/s2polygon.hg:n29,:
 In file included from i/usr/local/clang/include/absl/container/flat_hash_map.hn:s43e:
rIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h_:o19r:
_In file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:s59i:
gIn file included from n/usr/local/clang/include/absl/strings/cord.h_:i94m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31&:
&/usr/local/clang/include/absl/synchronization/mutex.h,: 641c:o68n:s twarning: &'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],
 true  ,641
 |        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
xplic  i165t |   M u t e x L o c k ( M u t e x &   mfua lAsBeS,L _AIBNSTLE_RINNATLE_RANTATLR_ISBIUNTGEL_EC_AAPRTGU(R)E)D;_
B      Y| (                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
his),
      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                                                                   ^~~~133
:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTR/usr/local/clang/include/absl/synchronization/mutex.hI:B649U:T29E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TUR  E649D | _ B Ye(xtphliisc)i)t,  M u t e x L o c k ( M u t e x *   a b s l _ n o n n\u
l      l|                                                ^~~~m
u, const Conditi/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n164&: 3c:o nwarning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])

      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                            ^135
:16:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'ABSL_INTERNAL_X':
22: note:   expanded from macro 'absl_nonnull'135
 |     241  |  # d e f i n et haibss)l)_)n oAnBnSuLl_lA T_TNRoInBnUuTlEl_
L      I| F                     ^E
TIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.hIn file included from :s2geography/build.cc29::
2In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :s2geography/build.h43::
5In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2builderutil_s2polygon_layer.h19::
48In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/s2polygon.h59::
29In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h94::
45In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h31::
167/usr/local/clang/include/absl/synchronization/mutex.h::51670:: 74:warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  
167 |       670  |      e x p l i c i t   R etardueer,M uAtBeSxLL_oIcNkT(EMRuNtAeLx_&S ImNuG LAEB_SALR_GI(N)T)E;R
N      A| L                                                  ^_
AT/usr/local/clang/include/absl/container/internal/raw_hash_map.hT:R120I:B9U:T Enote: _macro 'ABSL_INTERNAL_X' defined hereC
APT  U120R | E#Dd_eBfYi(nteh iAsB)S)L
_      I| N                                                                         ^~~~T
ERNAL_X(Func, Callee, KQual, VQual/usr/local/clang/include/absl/synchronization/mutex.h,: 678K:V35a:l uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 VVa  l678u | e ,  eTxapilli,c i.t. .R)e a\d
e      r| M        ^u
texLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2geography/geography.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CA:P4T:
UIn file included from R../src/s2/s2polygon.hE:D29_:
BIn file included from Y/usr/local/clang/include/absl/container/flat_hash_map.h(:t43h:
iIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.h):)19,:
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
  /usr/local/clang/include/absl/synchronization/mutex.h : 681 : 74 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
\
      |                                                    ^
  681 | /usr/local/clang/include/absl/container/internal/common.h : 31e:x9p:l inote: cmacro 'ABSL_INTERNAL_IF_true' defined herei
t R   e31a | d#edreMfuitneex LAoBcSkL(_MIuNtTeExR&N AmLu_ IAFB_StLr_uIeN(TiEfR_NsAaLt_iAsTfTiReIdB,U T.E._.C)A PiTfU_RsEaDt_iBsYf(itehdi
s      )| ,        ^

      |                                                                          ^~~~
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/synchronization/mutex.h:  689166: | 35 :  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_IN  T689E | R N AeLx_pXl(iicniste rRte_aodre_raMsustiegxnL,o cikn(sMeurtte_xo*r _aabsssli_gnno_ninmuplll,  m&u&,,  ccoonnsstt &C,o ntdriutei,o
n      &|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
ond  )167
 |        |                                    ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
   t  r241u | e#,d eAfBiSnLe_ IaNbTsElR_NnAoLn_nSuIlNlG L_EN_oAnRnGu(l)l)
;      
|                            ^| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insIn file included from es2geography/distance.ccr:t2_:
oIn file included from rs2geography/distance.h_:a4s:
sIn file included from is2geography/geography.hg:n4_:
iIn file included from m../src/s2/s2polygon.hp:l29,:
 In file included from &/usr/local/clang/include/absl/container/flat_hash_map.h&:,43 :
&In file included from &/usr/local/clang/include/absl/container/hash_container_defaults.h,: 19f:
aIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:e59,:
 In file included from t/usr/local/clang/include/absl/strings/cord.hr:u94e:
,In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31  ^:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h710::13374::52 :warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]note: 
expanded from macro 'ABSL_INTERNAL_X'
  133 |    710  |      e x p l i cAiBtS LW_rIiNtTeErRMNuAtLe_xALToTcRkI(BMUuTtEe_xC&A PmTuU RAEBDS_LB_YI(NtThEiRsN)A)L,_ A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s\)
)      
|                                                          ^| 
                                                                         ^~~~
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_fa/usr/local/clang/include/absl/synchronization/mutex.hl:s718e:(35i:f _warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tis  f718i | e d ,e x.p.l.i)c i_t_ VWAr_iAtReGrSM_u_t
e      x| L        ^o
ck(Mutex* In file included from as2geography/build.ccb:s2l:
_In file included from ns2geography/build.ho:n5n:
uIn file included from l../src/s2/s2builderutil_s2polygon_layer.hl: 48m:
uIn file included from )../src/s2/s2polygon.h
:      29| :
                                  ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::241171::223::  note: warning: expanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  241 |   #171d | e f iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( i_nNsoenrntu_lolr
_      a| s                     ^s
ign, insert_or_assign_impl, &&, &&, falseIn file included from ,s2geography/distance.cc :t2r:
uIn file included from es2geography/distance.h,:
4      :
| In file included from   ^s2geography/geography.h
:4/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 135../src/s2/s2polygon.h::1629::
 In file included from note: /usr/local/clang/include/absl/container/flat_hash_map.hexpanded from macro 'ABSL_INTERNAL_X':
43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h  :13519 | :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
tIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.hi:s31):
)/usr/local/clang/include/absl/synchronization/mutex.h): 722A:B74S:L _warning: A'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]T
TRIBU  T722E | _ L IeFxEpTlIiMcEi_tB OWUrNiDt e{r M u t e x L o c k ( M u t e x &   m u   A B S L _ I N T E R\N
A      L| _               ^A
TT/usr/local/clang/include/absl/container/internal/common.hR:I31B:U9T:E _note: Cmacro 'ABSL_INTERNAL_IF_true' defined hereA
PTU   R31E | D#_dBeYf(itnhei sA)B,S
L      _| I                                                                         ^~~~N
TERNAL_IF_true(if_satisfied, ...) if_satisf/usr/local/clang/include/absl/synchronization/mutex.hi:e731d:
35      :|          ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   expliIn file included from cs2geography/build.cci:t2 :
WIn file included from rs2geography/build.hi:t5e:
rIn file included from M../src/s2/s2builderutil_s2polygon_layer.hu:t48e:
xIn file included from L../src/s2/s2polygon.ho:c29k:
(In file included from M/usr/local/clang/include/absl/container/flat_hash_map.hu:t45e:
x/usr/local/clang/include/absl/container/internal/raw_hash_map.h*: 171a:b3s:l _nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                            In file included from  s2geography/distance.cc :\2
:
      In file included from | s2geography/distance.h          ^~~~:
4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defi/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:e174 :a45b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
onn  u174l | l   _ N o n n u l l 
        |                       ^ 
    ABSIn file included from Ls2geography/distance.cc_:I2N:
TIn file included from Es2geography/distance.hR:N4A:
LIn file included from _s2geography/geography.hS:I4N:
GIn file included from L../src/s2/s2polygon.hE:_29A:
RIn file included from G/usr/local/clang/include/absl/container/flat_hash_map.h(:)43):
;In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                                            ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h59::
120In file included from :/usr/local/clang/include/absl/strings/cord.h9::94 :
note: In file included from macro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h  :120801 | :#45d:e fwarning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
e A  B801S | L _ ICNoTnEdRiNtAiLo_nX((bFouonlc ,( *Caablslle_en,o nKnQuulall ,f uVnQcu)a(lvo,i dK*V aalbusel,_ nVuVlallaubei,l iTtayi_lu,n k.n.o.w)n )\,

            | |         ^                                            ^

/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_AT_TuRnIsBpUeTcEi_fCiAePdT
U      R| E                                 ^D
_BY(this)),                 In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
\In file included from 
s2geography/geography.h      :| 4                                              ^~~~:

In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 175/usr/local/clang/include/absl/container/hash_container_defaults.h::319::
 In file included from warning: /usr/local/clang/include/absl/container/internal/hash_function_defaults.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
59:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/strings/cord.h135::9416:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'ABSL_INTERNAL_X'31
:
/usr/local/clang/include/absl/synchronization/mutex.h:  802135: | 19 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
       802t | h i s ) ) )   A B S L _ AvToTiRdI*B UaTbEs_lL_InFuElTlIaMbEi_lBiOtUyN_Du n{k n o w n   a r g ) ; 
        |                    ^ 
   /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289\ | 
#      d| e               ^f
in/usr/local/clang/include/absl/container/internal/common.he: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereu
lla   b31i | l#idteyf_iunnek nAoBwSnL __INNuTlElR_NuAnLs_pIeFc_itfriueed(
i      f| _                                 ^s
atisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from In file included from s2geography/build.cc../src/s2/s2polygon.h::229:
:
In file included from In file included from s2geography/build.h/usr/local/clang/include/absl/container/flat_hash_map.h::543:
:
In file included from In file included from ../src/s2/s2builderutil_s2polygon_layer.h/usr/local/clang/include/absl/container/hash_container_defaults.h::4819:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2959:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/strings/cord.h::4594:
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h175::313:
:/usr/local/clang/include/absl/synchronization/mutex.h :warning: 814'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
175 |     A814B | S L _CIoNnTdEiRtNiAoLn_(Xb(oionls e(r*ta_bosrl__ansosningunl,l  ifnusnecr)t(_To*r _aabsssli_gnnu_lilmapbli,l i&t&y,_ u&n&k,n otwrnu)e,,
       t| r                   ^u
e,/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~22
:   note: 176expanded from macro 'absl_nonnull' | 
     241  |  # d e f i n e   a b s l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lSlI
N      G| L                     ^E
_ARG()In file included from )s2geography/distance.cc;:
2      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~s2geography/distance.h
:4:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2geography/geography.h::1354::
11In file included from :../src/s2/s2polygon.h :29note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from   /usr/local/clang/include/absl/container/hash_container_defaults.h135: | 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94t:
hIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hs:)31):
)/usr/local/clang/include/absl/synchronization/mutex.h :A814B:S42L:_ Awarning: Ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T
R  814 |   Condition(booIlB U(T*Ea_bLsIlF_EnToInMnEu_lBlO Ufunc)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
ND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_IIn file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
NTERNAL_X(insert_or_assignIn file included from ,s2geography/distance.cc :i2n:
sIn file included from es2geography/distance.hr:t4_:
oIn file included from rs2geography/geography.h_:a4s:
sIn file included from i../src/s2/s2polygon.hg:n29_:
iIn file included from m/usr/local/clang/include/absl/container/flat_hash_map.hp:l43,:
 In file included from c/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19s:
tIn file included from &/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,: 59c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94&:
,In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31  ^:

/usr/local/clang/include/absl/synchronization/mutex.h:850:16/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 133warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]52
:   note: 850expanded from macro 'ABSL_INTERNAL_X' | 
       133  | c o n s t   T *   a bAsBlS_Ln_oInNnTuElRlN AoLb_jAeTcTtR,I
B      U| T               ^E
_C/usr/local/clang/include/absl/base/nullability.hA:P241T:U22R:E Dnote: _expanded from macro 'absl_nonnull'B
Y(  t241h | i#sd)e)f,i n e   a b s l _ n o n n u l l   _ N o n n u l l 
       \| 
                     ^      
|                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSIn file included from Ls2geography/distance.cc_:I2N:
TIn file included from Es2geography/distance.hR:N4A:
LIn file included from _s2geography/geography.hI:F4_:
fIn file included from a../src/s2/s2polygon.hl:s29e:
(In file included from i/usr/local/clang/include/absl/container/flat_hash_map.hf:_43s:
aIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.hi:s19f:
iIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hd:,59 :
.In file included from ./usr/local/clang/include/absl/strings/cord.h.:)94 :
_In file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hV:A31_:
A/usr/local/clang/include/absl/synchronization/mutex.hR:G851S:_45_:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]        ^

  851 |       booIn file included from ls2geography/build.cc :(2a:
bIn file included from ss2geography/build.hl::5::
tIn file included from y../src/s2/s2builderutil_s2polygon_layer.hp:e48_:
iIn file included from d../src/s2/s2polygon.he:n29t:
iIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.hy:<45T:
>/usr/local/clang/include/absl/container/internal/raw_hash_map.h:::180t:y3p:e :warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*
 abs  l180_ | n o nAnBuSlLl_ ImNeTtEhRoNdA)L(_)X
(      i| n                                            ^s
e/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uilmlp l_,N ocnonnusltl&
      ,|                       ^c
onst&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |   In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4t:
hIn file included from is2geography/geography.hs:)4):
)In file included from  ../src/s2/s2polygon.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hA:T43T:
RIn file included from I/usr/local/clang/include/absl/container/hash_container_defaults.hB:U19T:
EIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:I59F:
EIn file included from T/usr/local/clang/include/absl/strings/cord.hI:M94E:
_In file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hO:U31N:
D/usr/local/clang/include/absl/synchronization/mutex.h :{855 :34 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      855  |      e x p l i c i t   C o n d i t i o\n
(      c| o               ^n
st/usr/local/clang/include/absl/container/internal/common.h :b31o:o9l:*  note: amacro 'ABSL_INTERNAL_IF_true' defined hereb
sl_   n31o | n#nduelfli nceo nAdB)S;L
_      I| N                                 ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22I:F _note: texpanded from macro 'absl_nonnull'r
ue  (241i | f#_dseaftiinsef iaebds,l _.n.o.n)n uilfl_ s_aNtoinsnfuileld

            | |                      ^        ^

In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 | In file included from  s2geography/distance.cc :A2B:
SIn file included from Ls2geography/distance.h_:I4N:
TIn file included from Es2geography/geography.hR:N4A:
LIn file included from _../src/s2/s2polygon.hX:(29i:
nIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.he:r43t:
_In file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hr:_19a:
sIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:g59n:
,In file included from  /usr/local/clang/include/absl/strings/cord.hi:n94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:s31e:
r/usr/local/clang/include/absl/synchronization/mutex.ht:_886o:r31_:a swarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
gn_  i886m | p l ,e xcpolniscti&t,  Ccoonndsitt&i,o
n      (| c  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
nst   181T | *   a b s l _ n o n n u l l   o b j )f
a      ls| e                              ^,
 t/usr/local/clang/include/absl/base/nullability.hr:u241e:,22 :. fnote: iexpanded from macro 'absl_nonnull'r
st  ,241  | c#odnesfti_niet earbastlo_rn oAnBnSuLl_lI N_TNEoRnNnAuLl_lC
O      M| M                     ^A
);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {             In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h:4:
In file included from  s2geography/geography.h:4:
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
\In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19          ^~~~:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nulla/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:l182e: 3a:, 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                               ^

/usr/local/clang/include/absl/base/nullability.h  :182257 | : 23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nXe( ianbsselr_tn_uolrl_aabslsei g_nN,u lilnasbelret
_      o| r                      ^_
assign_impIn file included from ls2geography/distance.cc,: 2c:
oIn file included from ns2geography/distance.hs:t4&:
,In file included from  s2geography/geography.hc:o4n:
sIn file included from t../src/s2/s2polygon.h&:,29 :
tIn file included from r/usr/local/clang/include/absl/container/flat_hash_map.hu:e43,:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :  ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::59133:
:In file included from 52/usr/local/clang/include/absl/strings/cord.h:: 94note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h133: | 923 : 48 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
    923  | A B S L _ I N T E R N A L _ A T T R I B U T E _ C A P T U R EcDo_nBsYt( tChoinsd)i)t,i o n *   a b s l _ n u l l a b l e   b ) ; 
        |                                                 ^ 
\
/usr/local/clang/include/absl/base/nullability.h      :| 257                                                   ^:
23: note: /usr/local/clang/include/absl/container/internal/common.hexpanded from macro 'absl_nullable':
31:  9257: |  #note: dmacro 'ABSL_INTERNAL_IF_true' defined heree
fin   e31  | a#bdself_innuel lAaBbSlLe_ I_NNTuElRlNaAbLl_eI
F      _| t                      ^r
ue(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from In file included from s2geography/distance.hs2geography/build.cc::42:
:
In file included from In file included from s2geography/geography.hs2geography/build.h::45:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2builderutil_s2polygon_layer.h::2948:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2polygon.h::4329:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/flat_hash_map.h::1945:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::18259::
3In file included from :/usr/local/clang/include/absl/strings/cord.h :warning: 94'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h  :182948 | : 10 :A Bwarning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_INT  E948R | N A Lb_oXo(li n(s*earbts_lo_rn_ualslsaibglne,  eivnasle_r)t(_coorn_sats sCiognnd_iitmipon* alb,s lc_onnosntn&u,l lc)o n=s tn&u,l ltprture;,

            | |          ^  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/usr/local/clang/include/absl/base/nullability.h:  257183: | 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   afbaslls_en,u l.lfaibrlset ,_ Ncuolnlsatb_liet
e      r| a                      ^t
or ABSLIn file included from _s2geography/distance.ccI:N2T:
EIn file included from Rs2geography/distance.hN:A4L:
_In file included from Cs2geography/geography.hO:M4M:
AIn file included from )../src/s2/s2polygon.h;:
29      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/container/flat_hash_map.h
:43:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/hash_container_defaults.h::13319::
47In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :note: 59expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 133/usr/local/clang/include/absl/strings/internal/cordz_info.h | : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 948 : 48 :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_  I948N | T E RbNoAoLl_ A(T*TaRbIsBlU_TnEu_lClAaPbTlUeR EeDv_aBlY_()t(hciosn)s)t,  C o n d i t i o n *   a b s l _ n o n n u l l )   =\ 
n      u| l                                              ^~~~l
ptr;
      |                                                ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:182/usr/local/clang/include/absl/base/nullability.h::3241:: 22warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hexpanded from macro 'absl_nonnull':
135:  16241: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e135  | a b s l _ n o n n u ltlh i_sN)o)n)n uAlBlS
L      _| A                     ^T
TRIBUTE_LIFETIME_BOUIn file included from Ns2geography/distance.ccD: 2{:
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
\In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94               ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/container/internal/common.h::3132:
:/usr/local/clang/include/absl/synchronization/mutex.h9::951 :note: 9macro 'ABSL_INTERNAL_IF_false' defined here:
 warning:    type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]32
 | #  d951e | f i nveo iAdB*S La_bIsNlT_EnRuNlAlLa_bIlFe_ faarlgs_e (=i fn_uslaltpitsrf;i
e      d| ,        ^ 
../usr/local/clang/include/absl/base/nullability.h.:)257 :_23_:V Anote: _expanded from macro 'absl_nullable'A
RG  S257_ | _#
d      e| f        ^i
ne absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnulIn file included from ls2geography/build.cc :c2a:
lIn file included from ls2geography/build.hb:a5c:
kIn file included from )../src/s2/s2builderutil_s2polygon_layer.h :c48o:
nIn file included from s../src/s2/s2polygon.ht: 29{:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h| :                              ^45
:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::241184::223::  note: warning: expanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  241 | #d  e184f | i n eA BaSbLs_lI_NnToEnRnNuAlLl_ X_(Nionnsneurltl_
o      r| _                     ^a
ssign, insert_or_assiIn file included from gs2geography/distance.ccn:_2i:
mIn file included from ps2geography/distance.hl:,4 :
cIn file included from os2geography/geography.hn:s4t:
&In file included from ,../src/s2/s2polygon.h :c29o:
nIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.ht:&43,:
 In file included from t/usr/local/clang/include/absl/container/hash_container_defaults.hr:u19e:
,In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59  ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h94::
133In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h52::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_INTERNAL_X':
979:43:   133warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      979  |      s tAaBtSiLc_ IbNoToElR NAAlLw_aAyTsTTRrIuBeU(TcEo_nCsAtP TCUoRnEdDi_tBiYo(nt*h iasb)s)l,_ n u l l a b l e )   {   r e t u r n   t r u e ;   }\

            | |                                           ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h:257/usr/local/clang/include/absl/container/internal/common.h::2331:: 9note: :expanded from macro 'absl_nullable' 
note: macro 'ABSL_INTERNAL_IF_true' defined here  
257 | #   d31e | f#idneef ianbes lA_BnSuLl_lIaNbTlEeR N_ANLu_lIlFa_btlreu
e      (| i                      ^f
_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNALIn file included from _s2geography/distance.ccC:O2M:
MIn file included from As2geography/distance.h):;4
:
      In file included from | s2geography/geography.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
4:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::29133:
:In file included from 47/usr/local/clang/include/absl/container/flat_hash_map.h:: 43note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h133: | 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31A:
B/usr/local/clang/include/absl/synchronization/mutex.hS:L1033_:I20N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_ A1033T | T R IvBoUiTdE _WCaAiPt(TMUuRtEex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241D:22: note: _expanded from macro 'absl_nonnull'B
Y(  t241h | i#sd)e)f,i n e   a b s l _ n o n n u l l   _ N o n n u l l 
       \| 
                     ^      
|                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:In file included from 135s2geography/distance.cc::162::
 In file included from note: s2geography/distance.hexpanded from macro 'ABSL_INTERNAL_X':
4:
In file included from s2geography/geography.h:4  :
135In file included from  | ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:h59i:
sIn file included from )/usr/local/clang/include/absl/strings/cord.h):)94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
A/usr/local/clang/include/absl/synchronization/mutex.hT:T1069R:I32B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
LIFE T1069I | M E _bBoOoUlN DW a{i t W i t h D e a d l i n e ( M u t e x *   a b s l _ n o n n\u
l      l|                 ^m
u, a/usr/local/clang/include/absl/container/internal/common.hb:s31l::9::T inote: mmacro 'ABSL_INTERNAL_IF_true' defined heree
 de   a31d | l#idneef)i n{e
       A| B                               ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
IF  _241t | r#udee(fiifn_es aatbisslf_ineodn,n u.l.l. )_ Niofn_nsualtli
s      f| i                     ^e
d
      |         ^
In file included from s2geography/build.cc:In file included from 2s2geography/distance.cc:
:In file included from 2s2geography/build.h:
:In file included from 5s2geography/distance.h:
:In file included from 4../src/s2/s2builderutil_s2polygon_layer.h:
:In file included from 48s2geography/geography.h:
:In file included from 4../src/s2/s2polygon.h:
:In file included from 29../src/s2/s2polygon.h:
:In file included from 29/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 45/usr/local/clang/include/absl/container/flat_hash_map.h:
:/usr/local/clang/include/absl/container/internal/raw_hash_map.h43::
184In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h3::19 :
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 184/usr/local/clang/include/absl/strings/internal/cordz_info.h | : 31 :
A/usr/local/clang/include/absl/synchronization/mutex.hB:S1088L:_35I:N Twarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
NAL _1088X | ( i nvsoeirdt _Eonra_balsesDiegbnu,g Liongs(ecrotn_sotr _cahsasri*g na_bismlp_ln,u lcloanbslte& ,n acmoen)s;t
&      ,|                                    ^t
ru/usr/local/clang/include/absl/base/nullability.he:,257
:      23| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
note: expanded from macro 'absl_nullable'
  185 |    257  |  # d e f i n e   a b s l _ n u ltlraubel,e  ._fNiurlslta,b lceo
n      s| t                      ^_
iterator ABSL_INTERNAIn file included from Ls2geography/distance.cc_:C2O:
MIn file included from Ms2geography/distance.hA:)4;:

In file included from       s2geography/geography.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4
:
In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h29::
135In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h11::43 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h  :13559 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
t/usr/local/clang/include/absl/synchronization/mutex.hh:i1091s:)26):)  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_ A1091T | T R IbBoUoTlE _WLaIiFtECToImMmEo_nB(OMUuNtDe x{*   a b s l _ n o n n u l l   m u t e x , 
        |                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :\22
:       | note:           ^~~~expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTEIn file included from _s2geography/distance.ccC:A2P:
TIn file included from UREs2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
D_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_In file included from Xs2geography/distance.cc(:i2n:
sIn file included from es2geography/distance.hr:t4_:
oIn file included from rs2geography/geography.h_:a4s:
sIn file included from i../src/s2/s2polygon.hg:n29,:
 In file included from i/usr/local/clang/include/absl/container/flat_hash_map.hn:s43e:
rIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h_:o19r:
_In file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:s59i:
gIn file included from n/usr/local/clang/include/absl/strings/cord.h_:i94m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31c:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s1146t:&7,:  &warning: &'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],
 fal s1146e | , 
        |    ^ 
 t/usr/local/clang/include/absl/container/internal/raw_hash_map.hh:i135s:)16):  Anote: Bexpanded from macro 'ABSL_INTERNAL_X'S
L_EX  C135L | U S I V E _ L O C K _tFhUiNsC)T)I)O NA(BmSuL)_
A      T| T      ^~~~R
IBUTE_LIFETIME_BOUND {                /usr/local/clang/include/absl/synchronization/mutex.h : 1153 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1153  | \ 
       e| x               ^p
li/usr/local/clang/include/absl/container/internal/common.hc:i32t: 9R:e lnote: emacro 'ABSL_INTERNAL_IF_false' defined herea
sab   l32e | M#udteefxiLnoec kA(BMSuLt_eIxN*T EaRbNsAlL__nIoFn_nfuallls em(ui)f
_      s| a                                      ^t
isf/usr/local/clang/include/absl/base/nullability.hi:e241d:,22 :. .note: .expanded from macro 'absl_nonnull')
 _  _241V | A#_dAeRfGiSn_e_ 
a      b| s        ^l
_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/build.cc
:2:
In file included from s2geography/build.h :11665 | :
 In file included from  ../src/s2/s2builderutil_s2polygon_layer.he:x48p:
lIn file included from i../src/s2/s2polygon.hc:i29t:
 In file included from R/usr/local/clang/include/absl/container/flat_hash_map.he:l45e:
a/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:a189b:l3e:M uwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
xLoc  k189( | M u tAeBxS*L _aIbNsTlE_RnNoAnLn_uXl(li nmsue,r tc_oonrs_ta sCsoingdni,t iionns&e rcto_nodr)_
a      s| s                                      ^i
gn/usr/local/clang/include/absl/base/nullability.h_:i241m:p22l:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241& | ,# d&e&f,i nfea lasbes,l
_      n| o  ^n
nu/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l133 :_52N:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll
        | 133                     ^ | 
          ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, cIn file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
onst_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BIn file included from Os2geography/distance.ccU:N2D:
 In file included from {s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h\:
94      :
| In file included from           ^~~~/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Conditi/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n191:::3C:a swarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
ndCa  l191l | F u nAcBtSiLo_nI(NcToEnRsNtA LC_oXn(diintsieornt*_ oarb_sals_sniognnn,u liln sce)r t{_
o      r| _                                                     ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g241n:_22i:m pnote: lexpanded from macro 'absl_nonnull',
 c  o241n | s#td&e,f i&n&e,  atbrsule_,n
o      n| n  ^u
ll /usr/local/clang/include/absl/container/internal/raw_hash_map.h_:N133o:n52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X'

      |                      ^
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                  In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4\:

In file included from       s2geography/geography.h| :                                                   ^4
:
In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/container/internal/common.h29::
31In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h9::43 :
In file included from note: /usr/local/clang/include/absl/container/hash_container_defaults.hmacro 'ABSL_INTERNAL_IF_true' defined here:
19:
In file included from    /usr/local/clang/include/absl/container/internal/hash_function_defaults.h31: | 59#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:I1230N:T12E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IF _1230t | r u e ( ibfo_osla t(i*safbiseld_,n o.n.n.u)l li ff_usnact)i(sTf*i eadb
s      l| _        ^n
ullability_unknowIn file included from ns2geography/build.cc):,2
:
      In file included from | s2geography/build.h           ^:
5:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builderutil_s2polygon_layer.h::24148::
22In file included from :../src/s2/s2polygon.h :note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  :24145 | :
#/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:e191f:i3n:e  warning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
sl_no  n191n | u l lA B_SNLo_nInNuTlElR
N      A| L                     ^_
X(inserIn file included from ts2geography/distance.cc_:o2r:
_In file included from as2geography/distance.hs:s4i:
gIn file included from ns2geography/geography.h,: 4i:
nIn file included from s../src/s2/s2polygon.he:r29t:
_In file included from o/usr/local/clang/include/absl/container/flat_hash_map.hr:_43a:
sIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hi:g19n:
_In file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hm:p59l:
,In file included from  /usr/local/clang/include/absl/strings/cord.hc:o94n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h&:,31 :
&/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin&e ab,s lt_rnuoen,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
_Nonn  u192l | l 
        |                       ^ 
        In file included from  s2geography/distance.cc : 2 :
 In file included from fs2geography/distance.ha:l4s:
eIn file included from ,s2geography/geography.h :.4f:
iIn file included from r../src/s2/s2polygon.hs:t29,:
 In file included from c/usr/local/clang/include/absl/container/flat_hash_map.ho:n43s:
tIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hi:t19e:
rIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:o59r:
 In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A1241L:_34C:O Mwarning: Mtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]A
);
       1241|  |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
   bo/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:l133 :(47*:a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_non  n133u | l l   f u n c ) ( T *A BaSbLs_lI_NnTuElRlNaAbLi_lAiTtTyR_IuBnUkTnEo_wCnA)P,T
U      R| E                                 ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(289t:h34i:s )note: )expanded from macro 'absl_nullability_unknown',
     289  |  # d e f i n e   a b s l _ n u l l a b i l i\t
y      _| u                                              ^~~~n
known _Null_un/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:p191e:c3i:f iwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d

      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                                 ^135
:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) AIn file included from Bs2geography/distance.ccS:L2_:
AIn file included from Ts2geography/distance.hT:R4I:
BIn file included from Us2geography/geography.hT:E4_:
LIn file included from I../src/s2/s2polygon.hF:E29T:
IIn file included from M/usr/local/clang/include/absl/container/flat_hash_map.hE:_43B:
OIn file included from U/usr/local/clang/include/absl/container/hash_container_defaults.hN:D19 :
{In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1242 : 44 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      1242  | \ 
        |                 ^t
ype/usr/local/clang/include/absl/container/internal/common.hn:a32m:e9 :a bnote: smacro 'ABSL_INTERNAL_IF_false' defined herel
::t   y32p | e#_diedfeinntei tAyB<STL>_:I:NtTyEpReN*A La_bIsFl__fnaullsleab(iilfi_tsya_tuinskfnioewdn,
       .| .                                           ^.
) /usr/local/clang/include/absl/base/nullability.h_:_289V:A34_:A Rnote: Gexpanded from macro 'absl_nullability_unknown'S
__  
289       | | #        ^d
efine absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::In file included from ts2geography/build.ccy:p2e:
_In file included from is2geography/build.hd:e5n:
tIn file included from i../src/s2/s2builderutil_s2polygon_layer.ht:y48<:
TIn file included from >../src/s2/s2polygon.h:::29t:
yIn file included from p/usr/local/clang/include/absl/container/flat_hash_map.he::45::
*/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a193b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null   193m | e t hAoBdS)L(_)I)N
T      E| R                                          ^N
AL/usr/local/clang/include/absl/base/nullability.h_:X241(:i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn,e  iabsl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nsert_or_assign_impl, const&, &&, In file included from ts2geography/distance.ccr:u2e:
,In file included from s2geography/distance.h
:      4| :
  ^In file included from 
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 133/usr/local/clang/include/absl/container/flat_hash_map.h::5243::
 In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hnote: :19expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59133:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94:
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :1279 :35A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT E1279 | RvNoAiLd_ ARTeTgRiIsBtUeTrEM_uCtAePxTPUrRoEfiDl_eBrY((vtohiids )()*,a b s l _ n o n n u l l   f n ) ( i n t 6 4 _ t   w a\i
t      _| c                                                   ^y
cles)/usr/local/clang/include/absl/container/internal/common.h):;31
:      9| :                                  ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/base/nullability.h
:241:22   :31  | note: #expanded from macro 'absl_nonnull'd
e  f241 | i#ndee fAiBnSeL _aIbNsTlE_RnNoAnLn_uIlFl_ t_rNuoen(niufl_ls
a      | t                     ^i
sfied, ...) if_satisfied
      | In file included from         ^s2geography/distance.cc
:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 1293s2geography/build.cc::332::
 In file included from warning: s2geography/build.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h :129348 | :
vIn file included from o../src/s2/s2polygon.hi:d29 :
RIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.hg:i45s:
t/usr/local/clang/include/absl/container/internal/raw_hash_map.he:r193M:u3t:e xwarning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
acer(v  o193i | d   (A*BaSbLs_lI_NnToEnRnNuAlLl_ Xf(ni)n(sceornts_to rc_haasrs*i ganb,s li_nnsoenrntu_lolr _massgs,i
g      n| _                                ^
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
&,   241& | &#,d etfriunee, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no  n194n | u l l   _ N o n n u l l 
        |                       ^ 
  trueIn file included from ,s2geography/distance.cc :.2f:
iIn file included from rs2geography/distance.hs:t4,:
 In file included from cs2geography/geography.ho:n4s:
tIn file included from _../src/s2/s2polygon.hi:t29e:
rIn file included from a/usr/local/clang/include/absl/container/flat_hash_map.ht:o43r:
 In file included from A/usr/local/clang/include/absl/container/hash_container_defaults.hB:S19L:
_In file included from I/usr/local/clang/include/absl/container/internal/hash_function_defaults.hN:T59E:
RIn file included from N/usr/local/clang/include/absl/strings/cord.hA:L94_:
CIn file included from O/usr/local/clang/include/absl/strings/internal/cordz_info.hM:M31A:
)/usr/local/clang/include/absl/synchronization/mutex.h;:
1293      :| 62                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:133:47:  1293 | note: vexpanded from macro 'ABSL_INTERNAL_X'o
id R  e133g | i s t e r M u t e x TArBaScLe_rI(NvToEiRdN A(L*_aAbTsTlR_InBoUnTnEu_lClA PfTnU)R(EcDo_nBsYt( tchhiasr)*) ,a b s l _ n o n n u l l   m s g , 
        |                                                               ^ 
 /usr/local/clang/include/absl/base/nullability.h : 241: 22 :\ 
note:       expanded from macro 'absl_nonnull'| 
                                              ^~~~
  241 | #define/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a193b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
nu/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l135 :_16N:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll
        135|  |                      ^ 
       In file included from  s2geography/distance.cc :t2h:
iIn file included from ss2geography/distance.h):)4):
 In file included from As2geography/geography.hB:S4L:
_In file included from A../src/s2/s2polygon.hT:T29R:
IIn file included from B/usr/local/clang/include/absl/container/flat_hash_map.hU:T43E:
_In file included from L/usr/local/clang/include/absl/container/hash_container_defaults.hI:F19ETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
:
In file included from In file included from s2geography/geography.cc/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::259:
:
In file included from In file included from s2geography/geography.h/usr/local/clang/include/absl/strings/cord.h::494:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2931:
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:/usr/local/clang/include/absl/synchronization/mutex.h43::
1294In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h62::19 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h1294: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 549 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       549  |      s t a t i c   v o i d   I n c r e m e n t S y n c h S e m (cMountsetx *v oaibds*l _anbosnln_unloln nmuul,l
       o| b                                       ^j
,
      /usr/local/clang/include/absl/base/nullability.h| :                                                             ^241
:22: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |    In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
bIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:e59_:
iIn file included from n/usr/local/clang/include/absl/strings/cord.ht:e94r:
nIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hl::31::
P/usr/local/clang/include/absl/synchronization/mutex.he:r1309T:h35r:e awarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
ync h1309* |  vaobisdl _Rneogninsutlelr Cwo)n;d
V      a| r                                                               ^T
ra/usr/local/clang/include/absl/base/nullability.hc:e241r:(22v:o inote: dexpanded from macro 'absl_nonnull' 
(*  a241b | s#ld_enfoinnneu lalb sfln_)n(o
n      n| u                                  ^l
l _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnuIn file included from ls2geography/geography.ccl: 2_:
NIn file included from os2geography/geography.hn:n4u:
lIn file included from l../src/s2/s2polygon.h
:      29| :
                     ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from In file included from s2geography/distance.cc/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::259:
:
In file included from In file included from s2geography/distance.h/usr/local/clang/include/absl/strings/cord.h::494:
:
In file included from In file included from s2geography/geography.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::431:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2polygon.h::55129::
40In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h :warning: 43type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19  :
551In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59s:
tIn file included from a/usr/local/clang/include/absl/strings/cord.ht:i94c:
 In file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.ho:o31l:
 /usr/local/clang/include/absl/synchronization/mutex.hD:e1310c:r17e:m ewarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
Syn c1310h | S e m ( Mcuotnesxt*  cahbasrl*_ naobnsl_nnounlnlu lmlu ,m
s      g| ,                                       ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22v:o inote: dexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bcsvl)_)n;o
n      n| u                ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nIn file included from os2geography/geography.ccn:n2u:
lIn file included from ls2geography/geography.h :_4N:
oIn file included from n../src/s2/s2polygon.hn:u29ll
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: &, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_IIn file included from Ns2geography/geography.ccT:E2R:
NIn file included from As2geography/geography.hL:_4X:
(In file included from i../src/s2/s2polygon.hn:s29e:
rIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.h_:o43r:
_In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hs:s19i:
gIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,: 59i:
nIn file included from s/usr/local/clang/include/absl/strings/cord.he:r94t:
_In file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hr:_31a:
s/usr/local/clang/include/absl/synchronization/mutex.hs:i624g:n68_:i mwarning: p'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
, &&,   624c | o n setx&p,l ifcailts eM,u
t      e| x  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
ock  (199M | u t e x &   m u   A B S L _ I N T E RtNrAuLe_,A T.TfRiIrBsUtT,E _cCoAnPsTtU_RiEtDe_rBaYt(otrh iAsB)S)L
_      I| N                                                                   ^~~~T
ERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))/usr/local/clang/include/absl/synchronization/mutex.h): 635A:B29S:L _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
TRIB  U635T | E _ LeIxFpElTiIcMiEt_ BMOuUtNeDx L{o c k ( M u t e x *   a b s l _ n o n n u l l   m u )   A B S\L
_      E| X          ^~~~C
LUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649/usr/local/clang/include/absl/container/internal/raw_hash_map.h | : 200 :e3x:p lwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
it M  u200t | e x LAoBcSkL(_MIuNtTeExR*N AaLb_sXl(_innosnenrutl_lo rm_ua,s sciognns,t  iCnosnedritt_ioorn_&a scsoingdn)_
i      m| p                            ^l
, &/usr/local/clang/include/absl/base/nullability.h&:,241 :c22o:n snote: texpanded from macro 'absl_nonnull'&
,   t241r | u#ed,e
f      i| n  ^e
 a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:s133l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   _133N | o n n u l l 
        |                       ^ 
ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |         In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.h : 4 :
 In file included from f../src/s2/s2polygon.ha:l29s:
eIn file included from ,/usr/local/clang/include/absl/container/flat_hash_map.h :.43f:
iIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.hs:t19,:
 In file included from c/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:n59s:
tIn file included from _/usr/local/clang/include/absl/strings/cord.hi:t94e:
rIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.ht:o31r:
 /usr/local/clang/include/absl/synchronization/mutex.hA:B670S:L74_:I Nwarning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
RNAL_  C670O | M M Ae)x;p
l      i| c                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
t R/usr/local/clang/include/absl/container/internal/raw_hash_map.he:a133d:e47r:M unote: texpanded from macro 'ABSL_INTERNAL_X'e
xLoc  k133( | M u t e x &   m u   AABBSSLL__IINNTTEERRNNAALL__AATTTTRRIIBBUUTTEE__CCAAPPTTUURREEDD__BBYY((tthhiiss))))
,       |                                                                           ^~~~ 
                       \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:/usr/local/clang/include/absl/synchronization/mutex.h200::6783::35 : warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16:   678 | note:  expanded from macro 'ABSL_INTERNAL_X' 
exp  l135i | c i t   R e a d e r Mtuhtiesx)L)o)c kA(BMSuLt_AeTxT*R IaBbUsTlE__nLoInFnEuTlIlM Em_uB)O UANBDS L{_ S H A R E D _ L O C K _ F U N C T I O N ( m u ) 
        |                                    ^ 
 \
/usr/local/clang/include/absl/base/nullability.h      :| 241               ^:
22: /usr/local/clang/include/absl/container/internal/common.hnote: :expanded from macro 'absl_nonnull'32
:9:   241 | note: #macro 'ABSL_INTERNAL_IF_false' defined hered
efi   n32e |  #adbesfli_nneo nAnBuSlLl_ I_NNToEnRnNuAlLl_
I      F| _                     ^f
alse(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_In file included from ns2geography/geography.cco:n2n:
uIn file included from ls2geography/geography.hl: 4d:
sIn file included from t../src/s2/s2polygon.h):;29
:
      In file included from | /usr/local/clang/include/absl/container/flat_hash_map.h                                                    ^:
43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:/usr/local/clang/include/absl/base/nullability.h19::
241In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h22::59 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i801n:e20 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n801u | l l  C_oNnodnintuiloln
(      b| o                     ^o
l (*absl_nonnull func)(void* absl_In file included from ns2geography/distance.ccu:l2l:
aIn file included from bs2geography/distance.hi:l4i:
tIn file included from ys2geography/geography.h_:u4n:
kIn file included from n../src/s2/s2polygon.ho:w29n:
)In file included from ,/usr/local/clang/include/absl/container/flat_hash_map.h
:      43| :
                   ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2259::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'110
:55:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
de  f110i | nveo iadb sAlp_pneonndnCuolrld T_oNSotnrniung(colnls
t       | C                     ^o
rd& src,In file included from  s2geography/geography.ccs:t2d:
:In file included from :s2geography/geography.hs:t4r:
iIn file included from n../src/s2/s2polygon.hg:*29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l43_:
nIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:n19u:
lIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :d59s:
tIn file included from )/usr/local/clang/include/absl/strings/cord.h;:
94      :
| In file included from                                                       ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241801::2245::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

  241 |   #801d | e f iCnoen daibtsilo_nn(obnonoull l( *_aNbosnln_unloln
n      u| l                     ^l
 func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullIn file included from as2geography/build.ccb:i2l:
iIn file included from ts2geography/build.hy:_5u:
nIn file included from k../src/s2/s2builderutil_s2polygon_layer.hn:o48w:
nIn file included from  ../src/s2/s2polygon.h_:N29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h_:u45n:
sp/usr/local/clang/include/absl/container/internal/raw_hash_map.he:c202i:f3i:e dwarning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                                 ^
  202 |   ABSL_INTERNALIn file included from _s2geography/geography.ccX:(2i:
nIn file included from ss2geography/geography.he:r4t:
_In file included from o../src/s2/s2polygon.hr:_29a:
sIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.hi:g43n:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hi:n19s:
eIn file included from r/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:_59o:
rIn file included from _/usr/local/clang/include/absl/strings/cord.ha:s94s:
iIn file included from g/usr/local/clang/include/absl/strings/internal/cordz_info.hn:_31i:
m/usr/local/clang/include/absl/synchronization/mutex.hp:l802,: 19&:& ,warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]c
ons  t802& | ,   t r u e , 
        |    ^ 
 v/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:i133d:*52 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_nu  l133l | a b i l i t y _ u n kAnBoSwLn_ IaNrTgE)R;N
A      L| _                  ^A
TT/usr/local/clang/include/absl/base/nullability.hR:I289B:U34T:E _note: Cexpanded from macro 'absl_nullability_unknown'A
PT  U289R | E#Dd_eBfYi(nteh iasb)s)l,_ n u l l a b i l i t y _ u n k n o w n   _ N u l l _\u
n      s| p                                                   ^e
cif/usr/local/clang/include/absl/container/internal/common.hi:e31d:
9      :|                                   ^
note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERIn file included from Ns2geography/geography.ccA:L2_:
IIn file included from Fs2geography/geography.h_:t4r:
uIn file included from e../src/s2/s2polygon.h(:i29f:
_In file included from s/usr/local/clang/include/absl/container/flat_hash_map.ha:t43i:
sIn file included from f/usr/local/clang/include/absl/container/hash_container_defaults.hi:e19d:
,In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h.:.59.:
)In file included from  /usr/local/clang/include/absl/strings/cord.hi:f94_:
sIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.ht:i31s:
f/usr/local/clang/include/absl/synchronization/mutex.hi:e814d:
20      :|          ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   ConditioIn file included from ns2geography/build.cc(:b2o:
oIn file included from ls2geography/build.h :(5*:
aIn file included from b../src/s2/s2builderutil_s2polygon_layer.hs:l48_:
nIn file included from o../src/s2/s2polygon.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h :f45u:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.hc:)202(:T3*:  awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
l_nul  l202a | b i lAiBtSyL__uInNkTnEoRwNnA)L,_
X      (| i                   ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uilmlp l_,N o&n&n,u lclo
n      s| t                     ^&
, trueIn file included from ,s2geography/geography.cc
:      2| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
s2geography/geography.h:4:
  In file included from 203../src/s2/s2polygon.h | : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 In file included from :
 s2geography/distance.ccIn file included from  :/usr/local/clang/include/absl/container/hash_container_defaults.h 2: :
19 In file included from :
 s2geography/distance.hIn file included from  :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h 4: :
59 In file included from :
 s2geography/geography.hIn file included from t:/usr/local/clang/include/absl/strings/cord.hr4:u:
94eIn file included from :
,../src/s2/s2polygon.h In file included from .:/usr/local/clang/include/absl/strings/internal/cordz_info.hf29:i:
31rIn file included from :
s/usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/synchronization/mutex.ht::,43814 :
:cIn file included from 42o/usr/local/clang/include/absl/container/hash_container_defaults.h:n: s19warning: t:
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_In file included from 
i/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:  e59814r:
 | a t/usr/local/clang/include/absl/strings/cord.h oC:ro n425AdB:iSt62Li_:oI nNwarning: (Tbtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]EoR
oNlA L(_*  CaO425bMs | M lA _)n;fo
rn      in| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~el
ln d/usr/local/clang/include/absl/container/internal/raw_hash_map.hf :uv133oni:dc 47C)o:p(y CTonote: rexpanded from macro 'ABSL_INTERNAL_X'd*T
 oaSb  ts133lr | _ in un l lg a (b ic oln sit  tACyoB_rSdu&L ns_kInNoTwEnR)N,A
L      _| A                                         ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B289U:T34E:_ Cnote: Aexpanded from macro 'absl_nullability_unknown'P
TUR  E289D | _#BdYe(ftihnies )a)b,s l _ n u l l a b i l i t y _ u n k n o w n   _ N u l\l
_      u| n                                              ^~~~s
pecifie/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:
202      :| 3                                 ^:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2geography/geography.cc135: | 2 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29t:
hIn file included from i/usr/local/clang/include/absl/container/flat_hash_map.hs:)43):
)In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hA:B19S:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:T59T:
RIn file included from I/usr/local/clang/include/absl/strings/cord.hB:U94T:
EIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hL:I31F:
E/usr/local/clang/include/absl/synchronization/mutex.hT:I815M:E16_:B Owarning: Utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
D {   815  |                          T *   a b s l _ n u l l a b i l\i
t      y| _               ^u
nk/usr/local/clang/include/absl/container/internal/common.hn:o31w:n9 :a rnote: gmacro 'ABSL_INTERNAL_IF_true' defined here)
;
         | 31               ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f289i:n34e:  Anote: Bexpanded from macro 'absl_nullability_unknown'S
L_  I289N | T#EdReNfAiLn_eI Fa_btsrlu_en(uilfl_asbaitliistfyi_eudn,k n.o.w.n)  _iNfu_lsla_tuinssfpieecdi
f      i| e        ^d

      |                                  ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :s2geography/geography.cc202::23:
:In file included from  s2geography/geography.h:warning: 4'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  :20243 | :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hA:B19S:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hI:N59T:
EIn file included from R/usr/local/clang/include/absl/strings/cord.hN:A94L:
_In file included from X/usr/local/clang/include/absl/strings/internal/cordz_info.h(:i31n:
s/usr/local/clang/include/absl/synchronization/mutex.he:r830t:_14o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sig  n830, |   i n s e r tb_ooorl_ a(s*saibgsnl__inmopnln,u l&l& ,f ucnocn)s(tT&*,  atbrsule_,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bil  i203t | y _ u n k n o w n ) , 
        |               ^ 
  /usr/local/clang/include/absl/base/nullability.h :t241r:u22e:,  note: .expanded from macro 'absl_nonnull'f
ir  s241t | ,# dceofnisnte_ iatbesrla_tnoorn nAuBlSlL __INNoTnEnRuNlAlL
_      C| O                     ^M
MA);
      In file included from | s2geography/geography.cc                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
2:
In file included from s2geography/geography.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::4135:
:In file included from 11../src/s2/s2polygon.h:: 29:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/flat_hash_map.h
:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h  :13519 | :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
tIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.hi:s31):
)/usr/local/clang/include/absl/synchronization/mutex.h): 830A:B36S:L _warning: Atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T
TRI  B830U | T E _ L I F EbToIoMlE _(B*OaUbNsDl _{n o n n u l l   f u n c ) ( T *   a b s l _ n u l l a b i l i\t
y      _| u          ^~~~n
known),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull robjc),
       s| t                              ^d
::/usr/local/clang/include/absl/base/nullability.hs:t241r:i22n:g *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  dasbts)l;_
n      o| n                                                             ^n
ull _No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:In file included from 4s2geography/distance.cc:
:In file included from 2../src/s2/s2polygon.h:
:In file included from 29s2geography/distance.h:
:In file included from 4/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43s2geography/geography.h:
:In file included from 4/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19../src/s2/s2polygon.h:
:In file included from 29/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:59/usr/local/clang/include/absl/synchronization/mutex.h:
:/usr/local/clang/include/absl/strings/cord.h896::43731::47 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |    437  | e x p l i c i t   C o n d i t i o n ( c o n s t   T *   a b s l _ nsotndn:u:lslt roibnjg)*
       a| b                              ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'd
st  )241; | 
#      d| e                                              ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2geography/distance.cc  :9222 | :
 In file included from  s2geography/distance.hs:t4a:
tIn file included from is2geography/geography.hc: 4b:
oIn file included from o../src/s2/s2polygon.hl: 29G:
uIn file included from a/usr/local/clang/include/absl/container/flat_hash_map.hr:a43n:
tIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.he:d19E:
qIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:l59(:
c/usr/local/clang/include/absl/strings/cord.ho:n480s:t39 :C owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
iti  o480n | *   a b suls_innugl lpaobilnet ear, 
=       | c                                               ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 257v:a23l:u enote: _expanded from macro 'absl_nullable't
yp  e257* |  #adbesfli_nneo nanbuslll_;n
u      l| l                                      ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241_:N22u:l lnote: aexpanded from macro 'absl_nonnull'b
le  
241       | | #                      ^d
efine absl_nIn file included from os2geography/geography.ccn:n2u:
lIn file included from ls2geography/geography.h :_4N:
oIn file included from n../src/s2/s2polygon.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h      :/usr/local/clang/include/absl/container/internal/raw_hash_map.h| 43:                     ^:
205
In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h3::19 :
In file included from warning: /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]59
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h205: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hA:B923S:L48_:I Nwarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]E
RNA  L923_ | X ( i n s e r t _ o r _ a s s i g n ,   i n s e r t _ o r _ acsosnisgtn _Ciomnpdli,t i&o&n,*  &a&b,s lf_anluslel,a bflaelIn file included from  sbs2geography/distance.cce):,;
2
      :
      | In file included from |   ^s2geography/distance.h                                               ^
:
4/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
/usr/local/clang/include/absl/base/nullability.h:In file included from :133s2geography/geography.h257:::52423::
: In file included from  note: note: expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2polygon.hexpanded from macro 'absl_nullable'
:
29:
    In file included from 133257/usr/local/clang/include/absl/container/flat_hash_map.h |  |  :# d43 e :
f iIn file included from n e/usr/local/clang/include/absl/container/hash_container_defaults.h   :a 19b :
sAIn file included from lB/usr/local/clang/include/absl/container/internal/hash_function_defaults.hS_:Ln_59uIl:
Nl/usr/local/clang/include/absl/strings/cord.hTaE:bRlN501eA L:__52NA:uTl TlRwarning: aItype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bB
lUeT
E        _501| C                      ^ | A
P T U R EeDx_pBlYi(ctihti sC)h)u,n k I t e r a t o r ( c o r d _In file included from  is2geography/geography.cc n : t2 e:
 rIn file included from  n s2geography/geography.h a: l4::
 :In file included from \C../src/s2/s2polygon.h
o:      r29| d                                                   ^:
R
In file included from e/usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/container/internal/common.hp::*4332 :
:aIn file included from 9b/usr/local/clang/include/absl/container/hash_container_defaults.h:s: lnote: 19macro 'ABSL_INTERNAL_IF_false' defined here_:

nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.h   n:32n59 | u:
#lIn file included from dl/usr/local/clang/include/absl/strings/cord.he :ft94ir:
neIn file included from ee/usr/local/clang/include/absl/strings/internal/cordz_info.h ):A;31B
:
S      /usr/local/clang/include/absl/synchronization/mutex.hL| :_                                                   ^948I
:N10T:E/usr/local/clang/include/absl/base/nullability.h R:warning: N241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A:
L22_:I  F 948_note:  | expanded from macro 'absl_nonnull'f 
a lb  soe241o(l | i #f(d_*seaabtfsiils_nfnieu eladl,bas lb._.l.ne) o ne_vn_aVullA__l)A( Rc_GoSNn_so_t
n       nC| uo        ^nl
dli
t      i| o                     ^n
*In file included from  s2geography/build.cca:b2s:
lIn file included from _s2geography/build.hn:o5n:
nIn file included from u../src/s2/s2builderutil_s2polygon_layer.hl:l48):
 In file included from =../src/s2/s2polygon.h :n29u:
lIn file included from lIn file included from /usr/local/clang/include/absl/container/flat_hash_map.hps2geography/distance.cc:t:45r2:
;:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h
In file included from :      s2geography/distance.h205| ::         ^43
:
:In file included from /usr/local/clang/include/absl/base/nullability.h s2geography/geography.h:warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]2574
::
23In file included from :  ../src/s2/s2polygon.h 205:note:  | expanded from macro 'absl_nullable'29 
:
 In file included from   A/usr/local/clang/include/absl/container/flat_hash_map.h257B: | S#43Ld_:
eIfIn file included from NiT/usr/local/clang/include/absl/container/hash_container_defaults.hnEe:R N19aAb:
LsIn file included from _lX_/usr/local/clang/include/absl/container/internal/hash_function_defaults.h(ni:unl59sl:
ea/usr/local/clang/include/absl/strings/cord.hrb:tl504_e:o r40__N:aus lslwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]agb
nl,e 
  i      504n| s                      ^ | e 
 r t _eoxrIn file included from p_s2geography/geography.ccla:is2cs:
iiIn file included from gts2geography/geography.hn :_C4ih:
muIn file included from np../src/s2/s2polygon.hkl:,I29 t:
e&In file included from r&/usr/local/clang/include/absl/container/flat_hash_map.ha,:t 43o&:
r&In file included from ,(/usr/local/clang/include/absl/container/hash_container_defaults.h c:fo19an:
slIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:,59 :
fIn file included from a/usr/local/clang/include/absl/strings/cord.hl:s94e:
,In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31  ^:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h948::13548::16 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    948135 |  |     b o o l   ( * a btshli_sn)u)l)l aAbBlSeL _eAvTaTlR_I)B(UcToEn_sLtI FCEoTnIdMiEt_iBoOnU*N Da b{s l _ n o n n u l l )   =   n u l l p t r ; 
        |                                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|                 ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/common.h:  32241: | 9#:d enote: fmacro 'ABSL_INTERNAL_IF_false' defined herei
ne    a32b | s#ld_enfoinnneu lAlB S_LN_oInNnTuElRlN
A      L| _                     ^I
F_false(if_satisfieIn file included from ds2geography/geography.cc,: 2.:
.In file included from .s2geography/geography.h): 4_:
_In file included from V../src/s2/s2polygon.hA:_29A:
RIn file included from G/usr/local/clang/include/absl/container/flat_hash_map.hS:_43_:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :        ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunctionIn file included from (s2geography/build.ccc:o2n:
sIn file included from ts2geography/build.h :C5o:
nIn file included from d../src/s2/s2builderutil_s2polygon_layer.hi:t48i:
oIn file included from n../src/s2/s2polygon.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.hl:_45n:
o/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:n207u:l3l:  cwarning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted];

      |                                                    ^
  207 | /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eXf(iinnes earbts_lo_rn_oansnsuilgln ,_ Nionnsneurltl_
o      r| _                     ^a
ssign_impl, &&, &&, faIn file included from ls2geography/geography.ccs:e2,:
 In file included from ts2geography/geography.hr:u4e:
,In file included from 
../src/s2/s2polygon.h      :| 29  ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h43::
133In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h52::19 :
In file included from note: /usr/local/clang/include/absl/container/internal/hash_function_defaults.hexpanded from macro 'ABSL_INTERNAL_X':
59:
In file included from /usr/local/clang/include/absl/strings/cord.h:  94133:
 | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 956 : 52 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_INT  E956R | N A Ls_tAaTtTiRcI BbUoToEl_ CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
CasttAndCa lCloFrudn*c taibosnl(_cnoonnsntu lClo ncdoirtdi)o;n
*       | a                                       ^b
sl_nonn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22c:) ;note: 
expanded from macro 'absl_nonnull'      
|                                                    ^
  241 | #de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_non  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.hs2geography/geography.cc::5072::
43In file included from :s2geography/geography.h :warning: 4type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2polygon.h:29:
In file included from   /usr/local/clang/include/absl/container/flat_hash_map.h507: | 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h :v19o:
iIn file included from d/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :I59n:
iIn file included from t/usr/local/clang/include/absl/strings/cord.hT:r94e:
eIn file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31r:
d/usr/local/clang/include/absl/synchronization/mutex.h_:i958n:t50e:r nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::Co  r958d | R e ps*t aatbiscl _bnooonln uClals ttArnedeC)a;l
l      M| e                                          ^t
ho/usr/local/clang/include/absl/base/nullability.hd:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'C
on  d241i | t#idoenf*i naeb salb_snlo_nnnounlnlu lcl) ;_
N      o| n                                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19In file included from :
s2geography/distance.ccIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h2::
59In file included from :
s2geography/distance.hIn file included from :/usr/local/clang/include/absl/strings/cord.h4::
94In file included from :
s2geography/geography.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h4::
31In file included from :
../src/s2/s2polygon.h/usr/local/clang/include/absl/synchronization/mutex.h::29961:
:In file included from 34/usr/local/clang/include/absl/container/flat_hash_map.h:: 43:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h961: | 59 :
 /usr/local/clang/include/absl/strings/cord.hs:t525a:t35i:c  warning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
ol C  a525l | l B y R eafb(sclo:n:scto rTd*_ ianbtselr_nnaoln:n:uClolr dsReelpf*)  a{b
s      l| _                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  cnote: uexpanded from macro 'absl_nonnull'r
re  n241t | _#ldeeaffi_n e=  anbuslll_pntorn;n
u      l| l                                  ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
note:       expanded from macro 'absl_nullable'| 
                     ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2geography/distance.cc:
:In file included from 2/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31s2geography/distance.h:
:/usr/local/clang/include/absl/synchronization/mutex.h4::
979In file included from :s2geography/geography.h43::4 :
In file included from warning: ../src/s2/s2polygon.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:  43979:
 | In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h :s19t:
aIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:c59 :
b/usr/local/clang/include/absl/strings/cord.ho:o582l: 37A:l wwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
sTru  e582( | c o n s te xCpolnidciitti oCnh*u nakbRsaln_gneu(lcloanbslte )C o{r dr*e taubrsnl _tnrounen;u l}l
       c| o                                          ^r
d)/usr/local/clang/include/absl/base/nullability.h ::257 :c23o:r dnote: _expanded from macro 'absl_nullable'(
co  r257d | )# d{e}f
i      n| e                                    ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   _241N | u#ldleafbilnee
       a| b                      ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:In file included from 2s2geography/geography.cc:
:In file included from 2s2geography/distance.h:
:In file included from 4s2geography/geography.h:
:In file included from 4s2geography/geography.h:
:In file included from 4../src/s2/s2polygon.h:
:In file included from 29../src/s2/s2polygon.h:
:In file included from 29/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/strings/cord.h94::
641In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h33::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1033:20:   warning: 641type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
     1033u | s i nvgo ipdo iWnatietr( M=u tceoxn*s ta bcshla_rn*o nanbuslll_ nmoun)n u{l
l      ;| 
                   ^      
|                                 ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'note: 
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline)expanded from macro 'absl_nonnull' {

      |                                ^
  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
      l| l                     ^ 
_Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 | In file included from  s2geography/distance.cc :v2o:
iIn file included from ds2geography/distance.h :E4n:
aIn file included from bs2geography/geography.hl:e4D:
eIn file included from b../src/s2/s2polygon.hu:g29L:
oIn file included from g/usr/local/clang/include/absl/container/flat_hash_map.h(:c43o:
nIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.ht: 19c:
hIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:*59 :
a/usr/local/clang/include/absl/strings/cord.hb:s655l:_39n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   655n | a m e ) ;e
x      p| l                                  ^i
ci/usr/local/clang/include/absl/base/nullability.ht: 257C:h23a:r Inote: texpanded from macro 'absl_nullable'e
ra  t257o | r#(dceofnisnte  Caobrsdl*_ naublslla_bnloen n_uNlull lcaobrlde)

            | |                       ^                                      ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2geography/geography.ccn:e2 :
aIn file included from bs2geography/geography.hs:l4_:
nIn file included from o../src/s2/s2polygon.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h :_43N:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull In file included from ms2geography/distance.ccu:t2e:
xIn file included from ,s2geography/distance.h
:      4| :
                         ^In file included from 
s2geography/geography.h:4/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2polygon.h::2229::
 In file included from note: /usr/local/clang/include/absl/container/flat_hash_map.hexpanded from macro 'absl_nonnull':
43:
  In file included from 241/usr/local/clang/include/absl/container/hash_container_defaults.h | :19#:
dIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:f59:
i/usr/local/clang/include/absl/strings/cord.hn:e667 :a44b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l667l |   _ Nsotnantuilcl 
C      o| r                     ^d
 AdvanceAndRead(CharIteIn file included from rs2geography/geography.cca:t2o:
rIn file included from *s2geography/geography.h :a4b:
sIn file included from l../src/s2/s2polygon.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hu:l43l:
 In file included from i/usr/local/clang/include/absl/container/hash_container_defaults.ht:,19 :
sIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hz:e59_:
tIn file included from  /usr/local/clang/include/absl/strings/cord.hn:_94b:
yIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.he:s31):
;/usr/local/clang/include/absl/synchronization/mutex.h
:      1093| :                                           ^46
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:  note: 1093expanded from macro 'absl_nonnull' | 
    241v | o#idde fRienmeo vaeb(sbla_sneo_ninnutlelr n_aNlo:n:nPuelrlT
      h| r                     ^e
adSynch* absl_nonnull s);
      |                                              ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/distance.cc::2412::
22In file included from :s2geography/distance.h :4note: :
expanded from macro 'absl_nonnull'In file included from 
s2geography/geography.h:  4241:
 | In file included from #../src/s2/s2polygon.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.he: 43:
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
l/usr/local/clang/include/absl/strings/cord.hl: 674_:N37o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^674
 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, trueIn file included from ,s2geography/geography.cc :t2:
rIn file included from us2geography/geography.he:,4
:
      In file included from | ../src/s2/s2polygon.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
29:
In file included from   /usr/local/clang/include/absl/container/flat_hash_map.h212: | 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h.:f31i:
rs/usr/local/clang/include/absl/synchronization/mutex.ht:,1109 :c34o:n swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
itera t1109o | r   AeBxSpLl_iIcNiTtE RMNuAtLe_xCLOoMcMkAM)a;y
b      e| (                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~M
ute/usr/local/clang/include/absl/container/internal/raw_hash_map.hx:*133 :a47b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
ulla  b133l | e   m u ) 
        |                                   ^ 
 AB/usr/local/clang/include/absl/base/nullability.hS:L257_:I23N:T Enote: Rexpanded from macro 'absl_nullable'N
AL_  A257T | T#RdIeBfUiTnEe_ CaAbPsTlU_RnEuDl_lBaYb(lteh i_sN)u)l,l a b l e 
        |                        ^ 
                 \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: In file included from expanded from macro 'ABSL_INTERNAL_X's2geography/geography.cc
:2:
In file included from   s2geography/geography.h135: | 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43t:
hIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hs:)19):
)In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:B59S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hA:T94T:
RIn file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hB:U31T:
E/usr/local/clang/include/absl/synchronization/mutex.h_:L1117I:F34E:T Iwarning: Mtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]E
_BOU N1117D |   {  e x p l i c i t   M u t e x L o c k M a y b e ( M u t e x *\ 
a      b| s               ^l
_n/usr/local/clang/include/absl/container/internal/common.hu:l31l:a9b:l enote:  macro 'ABSL_INTERNAL_IF_true' defined herem
u,    c31o | n#sdte fCionned iAtBiSoLn_&I NcToEnRdN)A
L      _| I                                 ^F
_t/usr/local/clang/include/absl/base/nullability.hr:u257e:(23i:f _note: sexpanded from macro 'absl_nullable'a
ti  s257f | i#edde,f i.n.e. )a bisfl__snautlilsafbileed 
_      N| u        ^l
lable
      |                       ^
In file included from s2geography/build.cc:2:
In file included from s2geography/build.h:5:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNIn file included from As2geography/geography.ccL:_2X:
(In file included from is2geography/geography.hn:s4e:
rIn file included from t../src/s2/s2polygon.h_:o29r:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* aIn file included from bs2geography/coverings.ccs:l2_:
nIn file included from os2geography/coverings.hn:n4u:
lIn file included from l../src/s2/s2region_coverer.h :m31u:
,In file included from  ../src/s2/s2cell.hc:o28n:
sIn file included from t../src/s2/s1chord_angle.h :C29o:
nIn file included from d../src/s2/s1angle.hi:t28i:
oIn file included from n../src/s2/s2point.h&: 27c:
oIn file included from n../src/s2/s2coder.hd:)23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                      ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 82:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
  In file included from 241/usr/local/clang/include/absl/crc/crc32c.h | :#32d:
eIn file included from f/usr/local/clang/include/absl/strings/str_format.hi:n84e:
 In file included from a/usr/local/clang/include/absl/strings/internal/str_format/bind.hb:s29l:
_n/usr/local/clang/include/absl/strings/internal/str_format/parser.ho:n227n:u11l:l  warning: _'enable_if' is a clang extension [-Wgcc-compat]N
onnu  l227l | 
        |                       ^ 
      enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/strings/internal/str_format/bind.h  :233162 | : 22 :   warning:  'enable_if' is a clang extension [-Wgcc-compat] 
key_  a162r | g < K > & &  _k_ aAtBtSrLi_bIuNtTeE_R_N(A(Le_nAaTbTlReI_BiUfT(EV_aClAiPdTFUoRrEmDa_tBIYm(ptlh<iAsr)g,s
.      .| .                                                         ^~~~>
(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63In file included from :s2geography/geography.cc :warning: 2'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from s2geography/geography.h:4:
In file included from   ../src/s2/s2polygon.h252: | 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
cIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:s19t:
 In file included from k/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:y59_:
aIn file included from r/usr/local/clang/include/absl/strings/cord.hg:<94K:
>In file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h :k31 :
AB/usr/local/clang/include/absl/synchronization/mutex.hS:L1179_:I10N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL_A T1179T | R I BMUuTtEe_xC*A PaTbUsRlE_Dn_uBlYl(atbhlies )m,u
_      ;| 
                                                              ^~~~      
|          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const CoIn file included from ns2geography/distance.ccd:i2t:
iIn file included from os2geography/distance.hn:*4 :
aIn file included from bs2geography/geography.hs:l4_:
nIn file included from o../src/s2/s2polygon.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h :c43):
 In file included from {/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
                                                   ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h898::24127::22 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'absl_nonnull'
  898 |    241  | f#rdieefnidn ec oanbsstl _CnoorndnzuIlnlf o_*N oanbnsull_ln
u      l| l                     ^a
ble GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2geography/distance.ccf:i2n:
eIn file included from  s2geography/distance.ha:b4s:
lIn file included from _s2geography/geography.hn:o4n:
nIn file included from u../src/s2/s2polygon.hl:l29 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_map.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl:
19      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/geography.cc::2572::
23In file included from :s2geography/geography.h :note: 4expanded from macro 'absl_nullable':

In file included from ../src/s2/s2polygon.h:  29257:
 | In file included from #/usr/local/clang/include/absl/container/flat_hash_map.hd:e43f:
iIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.he: 19a:
bIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:_59n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:a94b:
lIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1230a:b12l:e 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                      ^

 1230 |     bool (*absl_nIn file included from os2geography/distance.ccn:n2u:
lIn file included from ls2geography/distance.h :f4u:
nIn file included from cs2geography/geography.h):(4T:
*In file included from  ../src/s2/s2polygon.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hn:u43l:
lIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:i19l:
iIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hy:_59u:
n/usr/local/clang/include/absl/strings/cord.hk:n929o:w26n:) ,warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|            ^
  929 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22v:o inote: dexpanded from macro 'absl_nonnull' 
Sw  a241p | (#IdnelfiinneeR eapb*s la_bnsoln_nnuolnln u_lNlo nrnhusl)l;

            | |                      ^                         ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2geography/geography.cc
:2  :
241In file included from  | s2geography/geography.h#:d4e:
fIn file included from i../src/s2/s2polygon.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l43_:
nIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:n19u:
lIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :_59N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*In file included from as2geography/distance.ccb:s2l:
_In file included from ns2geography/distance.ho:n4n:
uIn file included from ls2geography/geography.hl: 4f:
uIn file included from n../src/s2/s2polygon.hc:)29(:
TIn file included from */usr/local/clang/include/absl/container/flat_hash_map.h :a43b:
sIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h_:n19u:
lIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b59i:
l/usr/local/clang/include/absl/strings/cord.hi:t932y:_17u:n kwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
wn  )932, | 
        |                                   ^ 
cIn file included from o/usr/local/clang/include/absl/base/nullability.hs2geography/coverings.ccn:s:289t2: :
34cIn file included from h:s2geography/coverings.ha :rnote: 4*expanded from macro 'absl_nullability_unknown':
 
aIn file included from b  ../src/s2/s2region_coverer.hs289:l | 31_#:
dnIn file included from eu../src/s2/s2cell.hlf:ila28nbel ea:
b sIn file included from dl../src/s2/s1chord_angle.h_a:nt29ua:
l(In file included from l)../src/s2/s1angle.ha :bc28io:
nlIn file included from si../src/s2/s2point.htt:;y27_
:
u      In file included from n| ../src/s2/s2coder.hk                ^:n
23o:
/usr/local/clang/include/absl/base/nullability.hwIn file included from n:/usr/local/clang/include/absl/status/status.h 257:_:67N23:
u:In file included from l /usr/local/clang/include/absl/status/internal/status_internal.hlnote: _:uexpanded from macro 'absl_nullable'29n
:
sIn file included from   p/usr/local/clang/include/absl/strings/cord.he257:c | i82f#:
ideIn file included from ed/usr/local/clang/include/absl/crc/internal/crc_cord_state.hf
:i      23n| :
                                 ^eIn file included from 
 /usr/local/clang/include/absl/crc/crc32c.ha:b32s:
l_/usr/local/clang/include/absl/strings/str_format.hn:u115l:l52In file included from :s2geography/geography.cc :2warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h  :11529 | :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from c/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19s:
tIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:t59r:
_In file included from f/usr/local/clang/include/absl/strings/cord.ho:r94m:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h_:i31n:
t/usr/local/clang/include/absl/synchronization/mutex.he:r1231n:a8l:: :warning: Ptype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
rse d1231F | o r m a tTB*a saeb*s la_bnsull_lnaobninluiltly _pucn)k
n      o| w                                                   ^n
 ar/usr/local/clang/include/absl/base/nullability.hg:)241
:      22| :       ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:289:  34241: |  #note: dexpanded from macro 'absl_nullability_unknown'e
fin  e289  | a#bdself_innoen naublsll __nNuolnlnaublill
i      t| y                     ^_
unknown _Null_unspecified
      |                                  ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:a23:
bIn file included from l/usr/local/clang/include/absl/status/status.he: 67_:
NIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he:
82      :
| In file included from                       ^/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintIn file included from Fs2geography/distance.cc(:c2h:
aIn file included from rs2geography/distance.h*: 4a:
bIn file included from ss2geography/geography.hl:_4n:
oIn file included from n../src/s2/s2polygon.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.ho:u43t:
pIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.ht:,19 :
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hd::59::
s/usr/local/clang/include/absl/strings/cord.hi:z934e:_31t:  swarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]z
e,
      |                      ^934
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :v22o:i dnote:  expanded from macro 'absl_nonnull's
et  _241d | a#tdae(fcionnes ta bcshla_rn*o nanbuslll_ n_uNlolnanbullel 
d      a| t                     ^a
, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.hs2geography/coverings.cc::9352::
11In file included from :s2geography/coverings.h :warning: 4type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2region_coverer.h:31:
  In file included from 935../src/s2/s2cell.h | : 28 :
 In file included from  ../src/s2/s1chord_angle.hc:h29a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from s/usr/local/clang/include/absl/status/status.he:t67_:
dIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.ht:a29(:
sizIn file included from e/usr/local/clang/include/absl/strings/cord.h_:t82 :
nIn file included from )/usr/local/clang/include/absl/crc/internal/crc_cord_state.h;: 23 :
/In file included from //usr/local/clang/include/absl/crc/crc32c.h :W32r:
i/usr/local/clang/include/absl/strings/str_format.ht:e503 :d20a:t awarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
o t  h503e |   r eFsourlmta
t      R| a          ^w
Si/usr/local/clang/include/absl/base/nullability.hn:k241(:T22: note: expanded from macro 'absl_nonnull'*
 a  b241s | l_In file included from #n/usr/local/clang/include/absl/container/flat_hash_map.hdo:en43nf:
uiIn file included from ln/usr/local/clang/include/absl/container/hash_container_defaults.hel:  19ra:
abIn file included from ws/usr/local/clang/include/absl/container/internal/hash_function_defaults.h)l: _59 n:
/oIn file included from /n/usr/local/clang/include/absl/strings/cord.h n:Nu94Ol:
LlIn file included from I /usr/local/clang/include/absl/strings/internal/cordz_info.hN_:TN31
o:
      n/usr/local/clang/include/absl/synchronization/mutex.h| n:                   ^u1241
l:l/usr/local/clang/include/absl/base/nullability.h12
::      241 | :warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22

: note: expanded from macro 'absl_nonnull'
 1241 |    241  |  # dbeofoiln e( *aabbssll_In file included from _nns2geography/distance.ccoon:nn2nuu:
lllIn file included from l  s2geography/distance.h_fN:uon4nc:
n)In file included from u(ls2geography/geography.hTl*:
 4      a:
| bIn file included from                      ^s../src/s2/s2polygon.h
l:_29n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:a43b:
iIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hi:t19y:
_In file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:k59n:
o/usr/local/clang/include/absl/strings/cord.hw:n937):,35
:       | warning:            ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h  :937241 | : 22 :   note: aexpanded from macro 'absl_nonnull'b
sl:  :241c | o#rdde_fiinntee ranbasll:_:nCoonrnduRlelp *_ Naobnsnlu_lnlu
l      l| a                     ^b
le tree() conIn file included from ss2geography/geography.cct:;2
:
      In file included from | s2geography/geography.h                                  ^:
4:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polygon.h::25729::
23In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h :note: 43expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h  :25719 | :
#In file included from d/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:f59i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:a1241b:l34e:  _warning: Ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]u
lla b1241l | e 
        |                        ^b
ool (*absl_nonnull funcIn file included from )s2geography/distance.cc(:T2*:
 In file included from as2geography/distance.hb:s4l:
_In file included from ns2geography/geography.hu:l4l:
aIn file included from b../src/s2/s2polygon.hi:l29i:
tIn file included from y/usr/local/clang/include/absl/container/flat_hash_map.h_:u43n:
kIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.ho:w19n:
)In file included from ,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
                                 ^/usr/local/clang/include/absl/strings/cord.h
:938:/usr/local/clang/include/absl/base/nullability.h35::289 :warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nullability_unknown'  
938 |      289  | a#bdself:i:nceo radb_siln_tneurlnlaalb:i:lCiotryd_Rep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19u:
nIn file included from k/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o59w:
n/usr/local/clang/include/absl/strings/cord.h :_941N:u35l:l _warning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
spe  c941i | f i e d 
a      b| s                                 ^l
::cord_internal::CordRep* absl_nullabIn file included from ls2geography/geography.cce: 2c:
lIn file included from es2geography/geography.ha:r4(:
)In file included from ;../src/s2/s2polygon.h
:      29| :
                                  ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/container/hash_container_defaults.h::2319::
 In file included from note: /usr/local/clang/include/absl/container/internal/hash_function_defaults.hexpanded from macro 'absl_nullable':
59:
  In file included from 257/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1242s:l44_:n uwarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
able _Nu l1242l | a b l e 
t      y| p                      ^e
name absl::type_identity<T>::type* absl_nullabilitIn file included from ys2geography/distance.cc_:u2n:
kIn file included from ns2geography/distance.ho:w4n:

In file included from       s2geography/geography.h| :                                           ^4
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h::29289:
:In file included from 34/usr/local/clang/include/absl/container/flat_hash_map.h:: 43:
note: In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19expanded from macro 'absl_nullability_unknown':

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
  /usr/local/clang/include/absl/strings/cord.h289: | 950#:d18e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 absl_  n950u | l l a b iCloirtdyR_eupnFklnaotw*n  a_bNsull_ln_ounnnsuplelc iMfaikeedF
l      a| t                                 ^W
ithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:In file included from 2s2geography/geography.cc:
:In file included from 2s2geography/distance.h:
:In file included from 4s2geography/geography.h:
:In file included from 4s2geography/geography.h:
:In file included from 4../src/s2/s2polygon.h:
:In file included from 29../src/s2/s2polygon.h:
:In file included from 29/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/strings/cord.h94::
957In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h27::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1249:8:   957warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    v1249o | i d   S eTt*T raebes(lC_onrodnRneupl*l  aobbsjle_cnto,n
n      u| l       ^l
 rep/usr/local/clang/include/absl/base/nullability.h,: 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'C
o  r241d | z#UdpedfaitneeS caobpsel&_ nsocnonpuel)l; 
      _| N                          ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2geography/geography.cc
:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2geography/distance.cc:
:In file included from 2/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31s2geography/distance.h:
:4/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1250s2geography/geography.h::434::
 In file included from ../src/s2/s2polygon.hwarning: :29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
 In file included from 1250/usr/local/clang/include/absl/container/hash_container_defaults.h | : 19:
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h :59b:
o/usr/local/clang/include/absl/strings/cord.ho:961l: 34(:a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
::  t961y | p e _ i dveonitdi tSye<tTT>r:eIn file included from :etOys2geography/coverings.ccrp:Ee2:m:
:pIn file included from *ts2geography/coverings.h y:a(4bC:
soIn file included from lr../src/s2/s2region_coverer.h_d:nR31oe:
npIn file included from n*../src/s2/s2cell.hu la:lb 28sml:
e_In file included from t../src/s2/s1chord_angle.hhn:ou29dl:
)lIn file included from (a../src/s2/s1angle.h)b:)l28
e:
       In file included from | r../src/s2/s2point.h                                          ^e:
p27,:
/usr/local/clang/include/absl/base/nullability.h
In file included from :      ../src/s2/s2coder.h241| ::                                 ^2322
:
:In file included from  /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.hnote: ::expanded from macro 'absl_nonnull'25767
::
  23In file included from 241:/usr/local/clang/include/absl/status/internal/status_internal.h |  :#note: 29dexpanded from macro 'absl_nullable':
e
In file included from f/usr/local/clang/include/absl/strings/cord.h  i:n25782e | :
 #In file included from a/usr/local/clang/include/absl/crc/internal/crc_cord_state.hbd:se23lf:
_iIn file included from nn/usr/local/clang/include/absl/crc/crc32c.hoe:n 32na:
ub/usr/local/clang/include/absl/strings/str_format.hls:ll860_ n:_u43Nl:lo nanwarning: butype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ll
le
       _| N                     ^u  
l860l | a b lfer
i      e| n                      ^d
 void AbslFormatFlush(FormIn file included from as2geography/distance.cct:S2i:
nIn file included from ks2geography/distance.h*: 4a:
bIn file included from ss2geography/geography.hl:_4n:
oIn file included from n../src/s2/s2polygon.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.hs:i43n:
kIn file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
                                          ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.hs2geography/geography.cc:::9682412:::
3122In file included from ::s2geography/geography.h  :note: warning: 4type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull':


In file included from ../src/s2/s2polygon.h:  29  241:
968 | In file included from # | /usr/local/clang/include/absl/container/flat_hash_map.hd :e 43f :
i In file included from nv/usr/local/clang/include/absl/container/hash_container_defaults.heo: i19ad:
b In file included from sE/usr/local/clang/include/absl/container/internal/hash_function_defaults.hlm:_p59nl:
oaIn file included from nc/usr/local/clang/include/absl/strings/cord.hne:uT94lr:
le eIn file included from _(/usr/local/clang/include/absl/strings/internal/cordz_info.hNC:oo31nr:
nd/usr/local/clang/include/absl/synchronization/mutex.huR:le1259lp:
*14       :| a                      ^bwarning: 
stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no n1259n | u l l   rceopn,s tM eTt*h oadbIsdle_nntoinfniuelrl  moebtjheocdt),;

            | |              ^                              ^In file included from 

s2geography/coverings.cc:/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h2:::
241241In file included from ::s2geography/coverings.h2222:::4  :
note: In file included from note: expanded from macro 'absl_nonnull'../src/s2/s2region_coverer.hexpanded from macro 'absl_nonnull'
:
31  :
  241In file included from 241 | ../src/s2/s2cell.h# | :d#28ed:
feiIn file included from fn../src/s2/s1chord_angle.hei:n 29ea:
b In file included from sa../src/s2/s1angle.hlb:_s28nl:
o_In file included from nn../src/s2/s2point.hno:un27ln:
luIn file included from  l../src/s2/s2coder.h_l:N o_23nNnounl:
lnIn file included from 
u/usr/local/clang/include/absl/status/status.h      l:| l                     ^67

:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:In file included from 60s2geography/geography.cc:: 2:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/geography.h
:4:
In file included from In file included from   s2geography/distance.cc../src/s2/s2polygon.h867:: | 229 :
:
 In file included from In file included from es2geography/distance.h/usr/local/clang/include/absl/container/flat_hash_map.hx::p443l:
:
iIn file included from In file included from cs2geography/geography.h/usr/local/clang/include/absl/container/hash_container_defaults.hi::t419 :
:
FIn file included from In file included from o../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr::m2959a:
:
tIn file included from In file included from S/usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/strings/cord.hi::n4394k:
:
(In file included from In file included from s/usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/strings/internal/cordz_info.ht::r1931_:
:
fIn file included from /usr/local/clang/include/absl/synchronization/mutex.ho/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:r:1260m59:a:
43t/usr/local/clang/include/absl/strings/cord.h:_: i972warning: n:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t31
e:r  nwarning: 1260atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | l 
: : F   o972bro | mo alt  S( ian bvskloI:mi:pdtl y*pE eam_bipsdlentity<T>::t_ype:n:o*n naublsll _sn)o
n      n| u                                                           ^l
l meth/usr/local/clang/include/absl/base/nullability.ho:d241):(22):
       | note:                                           ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/geography.cc
:2:
In file included from s2geography/geography.h  :8694 | :
 In file included from  ../src/s2/s2polygon.hs:t29r:
_In file included from f/usr/local/clang/include/absl/container/flat_hash_map.ho:r43m:
aIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h_:i19n:
tIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:n59a:
lIn file included from :/usr/local/clang/include/absl/strings/cord.h::F94o:
rIn file included from m/usr/local/clang/include/absl/strings/internal/cordz_info.ha:t31S:
i/usr/local/clang/include/absl/synchronization/mutex.hn:k1279I:m35p:l *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_ n1279o | nvnouildl  Rseigniks_t;e
r      M| u                                       ^t
ex/usr/local/clang/include/absl/base/nullability.hP:r241o:f22i:l enote: rexpanded from macro 'absl_nonnull'(
vo  i241d |  #(d*eafbisnle_ naobnsnlu_lnlo nfnnu)l(li n_tN6o4n_ntu lwla
i      t| _                     ^c
ycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defilaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,n
e       | a                             ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2geography/geography.ccs2geography/distance.cc::22:
:
In file included from In file included from s2geography/geography.hs2geography/distance.h::44:
:
In file included from In file included from ../src/s2/s2polygon.hs2geography/geography.h::294:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2polygon.h::4329:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/flat_hash_map.h::1943:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::5919:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::9459:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::98231::
39:/usr/local/clang/include/absl/synchronization/mutex.h :warning: 1293type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
33:   warning: 982type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
    v o1293i | dv oAipdp eRnedgTirseteeTroMIuntleixnTerda(cCeorr(dvRoeipd*  (a*basbls_ln_onnonnunlull lt rfene),(
c      o| n                                      ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nmes ga,b
s      l| _                                ^n
onn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _In file included from Ns2geography/distance.cco:n2n:
uIn file included from ls2geography/distance.hl:
4      :
| In file included from                      ^s2geography/geography.h
:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from In file included from s2geography/geography.cc/usr/local/clang/include/absl/container/flat_hash_map.h::243:
:
In file included from In file included from s2geography/geography.h/usr/local/clang/include/absl/container/hash_container_defaults.h::419:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2959:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/flat_hash_map.h::98443::
36In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :warning: 19type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
  In file included from 984/usr/local/clang/include/absl/strings/cord.h | : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hv:o31i:
d/usr/local/clang/include/absl/synchronization/mutex.h :A1293p:p62e:n dwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
eeTo T1293r | eveo(iCdo rRdeRgeips*t earbMsult_enxoTnrnauclelr (tvroeied,  (M*eatbhsold_Indoennntuilfli efrn )m(ectohnosdt) ;c
h      a| r                                   ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241m | s#gd,e
f      i| n                                                             ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _NonnuIn file included from ls2geography/distance.ccl:
2      :
| In file included from                      ^s2geography/distance.h
:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.hs2geography/geography.cc::432:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hs2geography/geography.h::194:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/s2polygon.h::5929:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h985::4330:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59985:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
vIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hi:d31 :
A/usr/local/clang/include/absl/synchronization/mutex.hp:p1294e:n62d:T rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(Cor d1294R | e p *   a b s l _ n o n n u l l   t r e e ,   M e t h o d I d e n t i f i e r   m e t h o d ) ; 
       c| o                             ^n
st/usr/local/clang/include/absl/base/nullability.h :v241o:i22d:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln eo bajb,s
l      _| n                                                             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _NoIn file included from ns2geography/distance.ccn:u2l:
lIn file included from 
s2geography/distance.h      :| 4                     ^:

In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     voIn file included from is2geography/geography.ccd: 2P:
rIn file included from es2geography/geography.hp:e4n:
dIn file included from T../src/s2/s2polygon.hr:e29e:
TIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hI:n43l:
iIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.he:d19(:
CIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:d59R:
eIn file included from p/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n1309u:l35l:  twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
e,
       1309|  |                                        ^v
oi/usr/local/clang/include/absl/base/nullability.hd: 241R:e22g:i snote: texpanded from macro 'absl_nonnull'e
rC  o241n | d#VdaerfTirnaec earb(svlo_indo n(n*ualbls l_Non_nnonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n)In file included from ;s2geography/distance.cc
:      2| :
                              ^In file included from 
s2geography/distance.h:/usr/local/clang/include/absl/base/nullability.h4::
257In file included from :s2geography/geography.h23::4 :
In file included from note: ../src/s2/s2polygon.hexpanded from macro 'absl_nullable':
29:
  In file included from 257/usr/local/clang/include/absl/container/flat_hash_map.h | :#43d:
eIn file included from f/usr/local/clang/include/absl/container/hash_container_defaults.hi:n19e:
 In file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hb:s59l:
_n/usr/local/clang/include/absl/strings/cord.hu:l1140l:a49b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nulla b1140l | e 
        |                        ^ 
                    In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.hC:o4r:
dIn file included from R../src/s2/s2polygon.he:p29E:
xIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.he:r43n:
aIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h*: 19a:
bIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:_59n:
o/usr/local/clang/include/absl/strings/cord.hn:n935u:l11l:  rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
);
        | 935                                                ^ | 
   /usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln es eatb_sdla_tnao(nsniuzlel_ t_ Nno)n;n u l/l/
       W| r                     ^i
te data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2geography/distance.cc22::2 :
In file included from note: s2geography/distance.hexpanded from macro 'absl_nonnull':
4:
  In file included from 241s2geography/geography.h | :#4d:
eIn file included from f../src/s2/s2polygon.hi:n29e:
 In file included from a/usr/local/clang/include/absl/container/flat_hash_map.hb:s43l:
_In file included from n/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19n:
uIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl: 59_:
N/usr/local/clang/include/absl/strings/cord.ho:n1146n:u10l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

 1146 | CordRep* absl_nonnuIn file included from ls2geography/geography.ccl: 2N:
eIn file included from ws2geography/geography.hE:x4t:
eIn file included from r../src/s2/s2polygon.hn:a29l:
RIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.hp:(43a:
bIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hl::19::
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:i59n:
g/usr/local/clang/include/absl/strings/cord.h_:v937i:e35w:  dwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
a,
        | 937         ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241a:b22s:l :note: :expanded from macro 'absl_nonnull'c
or  d241_ | i#ndteefrinnael :a:bCsolr_dnRoenpn*u lalb s_lN_onnunlullalb
l      e|                       ^t
ree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* In file included from as2geography/distance.ccb:s2l:
_In file included from ns2geography/distance.ho:n4n:
uIn file included from ls2geography/geography.hl: 4a:
sIn file included from _../src/s2/s2polygon.ht:r29e:
eIn file included from (/usr/local/clang/include/absl/container/flat_hash_map.h): 43c:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hs:t19;:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :                                  ^59
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::1159241::1722::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

   2411159 |  | #idnelfiinnee  CaobrsdlR_enpo*n naublsll __nNoonnnnuullll 
N      e| w                     ^E
xternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2geography/distance.cc#:d2e:
fIn file included from is2geography/distance.hn:e4 :
aIn file included from bs2geography/geography.hs:l4_:
nIn file included from u../src/s2/s2polygon.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.he: 43_:
NIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19a:
bIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:
59      :
|                       ^/usr/local/clang/include/absl/strings/cord.h
:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inlIn file included from is2geography/geography.ccn:e2 :
vIn file included from os2geography/geography.hi:d4 :
CIn file included from o../src/s2/s2polygon.hr:d29::
:In file included from I/usr/local/clang/include/absl/container/flat_hash_map.hn:l43i:
nIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hR:e19p:
:In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.hS:w59a:
p/usr/local/clang/include/absl/strings/cord.h(:C1017o:r51d:: :warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
line R1017e | p *   a bvsoli_dn osnentu_lclo rrdhzs_)i n{f
o      (| c                                                   ^o
rd_i/usr/local/clang/include/absl/base/nullability.hn:t241e:r22n:a lnote: :expanded from macro 'absl_nonnull':
Co  r241d | z#Idneffoi*n ea basbls_ln_onnonnunlull lc o_rNdozn_niunlflo
)       | {                     ^

      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const cIn file included from hs2geography/geography.cca:r2*:
 In file included from as2geography/geography.hb:s4l:
_In file included from n../src/s2/s2polygon.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hl:e43 :
CIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hr:d19::
:In file included from I/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:l59i:
n/usr/local/clang/include/absl/strings/cord.he:R1049e:p56::: dwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
a()  c1049o | n s ts t{a
t      i| c                   ^ 
boo/usr/local/clang/include/absl/base/nullability.hl: 257G:e23t:F lnote: aexpanded from macro 'absl_nullable't
Au  x257( | a#bdself:i:nceo radb_siln_tneurlnlaalb:l:eC o_rNduRlelpa*b laeb
s      l| _                      ^n
onnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from In file included from ../src/s2/s2polygon.hs2geography/geography.cc::292:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.hs2geography/geography.h::434:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h../src/s2/s2polygon.h::1929:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/flat_hash_map.h::5943:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h1234::1920:
:In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]59
:
/usr/local/clang/include/absl/strings/cord.h:1050 :123445 | :i nwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne  c1050o | n s t   c h a r *   a b s l  _ n o n n u l l   C oarbds:l::I:nsltirnienRge_pv:i:eaws*_ cahbasrls_(n)o ncnounlslt  f{r
a      g| m                   ^e
nt);/usr/local/clang/include/absl/base/nullability.h
:      241| :                                            ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/distance.cc
:2:
In file included from  s2geography/distance.h1054: | 4 :
 In file included from  s2geography/geography.h : 4 :
aIn file included from b../src/s2/s2polygon.hs:l29::
:In file included from c/usr/local/clang/include/absl/container/flat_hash_map.ho:r43d:
_In file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hn:t19e:
rIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:l59::
:/usr/local/clang/include/absl/strings/cord.hC:o1239r:d38R:e pwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl _1239n | oinnnluilnle  raebps,l
:      :| c                                    ^o
rd/usr/local/clang/include/absl/base/nullability.h_:i241n:t22e:r nnote: aexpanded from macro 'absl_nonnull'l
::  C241o | r#ddReefpi*n ea basbls_ln_onnonnunlull lC o_rNdo:n:nIunllli
n      e| R                     ^e
p::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2geography/geography.cco:n2n:
uIn file included from ls2geography/geography.hl: 4_:
NIn file included from o../src/s2/s2polygon.hn:n29u:
In file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:
43      :
| In file included from                      ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* abslIn file included from _s2geography/distance.ccn:o2n:
nIn file included from us2geography/distance.hl:l4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
 In file included from ../src/s2/s2cell.h:28:
In file included from d../src/s2/s1chord_angle.hs:t29):
 In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from ;../src/s2/s2point.h
:      27| :
                                 ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
86:
/usr/local/clang/include/absl/strings/cord_analysis.h  :24132 | :#47d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e absl   _32n | osninzuel_lt  _GNeotnEnsutlilm
a      t| e                     ^d
MemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2geography/geography.cc::292:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2geography/geography.h::864:
:
/usr/local/clang/include/absl/strings/cord_analysis.hIn file included from :../src/s2/s2polygon.h50::2949:
:In file included from  /usr/local/clang/include/absl/container/flat_hash_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19   :
50In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:i59z:
e/usr/local/clang/include/absl/strings/cord.h_:t1078 :G33e:t Mwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ePre c1078i | s e Maebmsolr:y:Ucsoargde_(icnotnesrtn aClo:r:dCRoerpd*R eapb*s la_bnsoln_nnuolnln urlelp )T;a
k      e| R                                                ^e
p()/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t &note: ;expanded from macro 'absl_nonnull'

      |                                   ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from In file included from s2geography/geography.cc../src/s2/s2cell.h::228:
:
In file included from In file included from s2geography/geography.h../src/s2/s1chord_angle.h::429:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s1angle.h::2928:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2point.h::4327:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h../src/s2/s2coder.h::1923:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/status/status.h::5967:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h1079::2933:
:In file included from  /usr/local/clang/include/absl/strings/cord.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]86
:
/usr/local/clang/include/absl/strings/cord_analysis.h: 561079: | 56 :  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l::   c56o | rsdi_zien_tte rGneatlE:s:tCiomradtReedpF*a iarbSshla_rneoMnenmuolrly UTsaakgeeR(ecpo(n)s t& &C;o
r      d| R                                ^e
p*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #rdeepf)i;n
e       | a                                                       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _ns2geography/geography.cco:n2n:
uIn file included from ls2geography/geography.hl: 4_:
NIn file included from o../src/s2/s2polygon.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h
:      43| :
In file included from                      ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2geography/distance.ccn:n2u:
lIn file included from ls2geography/distance.h :_4N:
oIn file included from ns2geography/geography.hn:u4l:
lIn file included from 
../src/s2/s2polygon.h      :| 29                     ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2geography/distance.ccd:e2f:
iIn file included from ns2geography/distance.he: 4a:
bIn file included from ss2geography/geography.hl:_4n:
oIn file included from n../src/s2/s2polygon.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.h_:N43o:
nIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hu:l19l:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :                     ^59
:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from In file included from s2geography/distance.hs2geography/geography.cc::42:
:
In file included from In file included from s2geography/geography.hs2geography/geography.h::44:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2polygon.h::2929:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/container/flat_hash_map.h::4343:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::1919:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5959:
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::16661268::4851::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  16661268 |  | iinnlliinnee  Cvooridd  CCoorrdd::::AIdnvlainnceeRAenpd:R:eEamdp(lCahcaerTIrteeer(aCtoorrd*R eapb*s la_bnsoln_nnuolnln uiltl, 
r      e| p                                               ^,

      |                                                   ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59In file included from :
s2geography/geography.cc:/usr/local/clang/include/absl/strings/cord.h2::
1672In file included from :s2geography/geography.h41::4 :
In file included from warning: ../src/s2/s2polygon.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
 In file included from 1672/usr/local/clang/include/absl/container/hash_container_defaults.h | :i19n:
lIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e59 :
v/usr/local/clang/include/absl/strings/cord.ho:i1275d: 51C:o rwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:Adv 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullabale nrceep(,C
h      a| r                                                     ^I
ter/usr/local/clang/include/absl/base/nullability.ha:t257o:r23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli niet ,a bssilz_en_utl lna_bblyet e_sN)u l{l
a      b| l                                        ^e

      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2geography/geography.ccn:u2l:
lIn file included from  s2geography/geography.h_:N4o:
nIn file included from n../src/s2/s2polygon.hu:l29l:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h| :                     ^43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void CorIn file included from ds2geography/coverings.cc:::2C:
oIn file included from ps2geography/coverings.hy:T4o:
AIn file included from r../src/s2/s2region_coverer.hr:a31y:
IIn file included from m../src/s2/s2cell.hp:l28(:
cIn file included from h../src/s2/s1chord_angle.ha:r29*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23d:
sIn file included from t/usr/local/clang/include/absl/status/status.h): 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
{In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                                        ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241585::2220::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #585d | e f ivnoei da bTsrla_nnso(nMnuuHlolw  _aNbosnln_unloln
n      u| l                     ^l
 how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2geography/geography.ccn:u2l:
lIn file included from 
s2geography/geography.h      :| 4                     ^:

In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2geography/coverings.cc :15142 | :
 In file included from   s2geography/coverings.h :c4o:
rIn file included from d../src/s2/s2region_coverer.h_:i31n:
tIn file included from e../src/s2/s2cell.hr:n28a:
lIn file included from :../src/s2/s1chord_angle.h::C29o:
rIn file included from d../src/s2/s1angle.hR:e28p:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
tIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.he:e29):
 In file included from {/usr/local/clang/include/absl/strings/cord.h
:      94| :
                            ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/synchronization/mutex.h241::58622::43 :note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d586e | f i nveo iadb sFle_rn(obnansuel_li n_tNeornnnaull:l:
P      e| r                     ^T
hreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |  In file included from  s2geography/geography.cc : 2 :
 In file included from bs2geography/geography.ho:o4l:
 In file included from (../src/s2/s2polygon.ha:b29s:
lIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h::t43y:
pIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h_:i19d:
eIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:i59t:
y<T/usr/local/clang/include/absl/strings/cord.h>::1666::t48y:p ewarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
* absl _1666n | oinnnluilnle  mCeotrhdo dC)o(r)d):;:
A      d| v                                            ^a
nc/usr/local/clang/include/absl/base/nullability.he:A241n:d22R:e anote: dexpanded from macro 'absl_nonnull'(
Ch  a241r | I#tdeerfaitnoer *a basbls_ln_onnonnunlull l_ Niotn,n
u      l| l                                               ^

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2geography/coverings.ccn:u2l:
lIn file included from 
s2geography/coverings.h      :| 4                     ^:

In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull oIn file included from bs2geography/geography.ccj:e2c:
tIn file included from ,s2geography/geography.h
:      4| :
               ^In file included from 
../src/s2/s2polygon.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h22::43 :
In file included from note: /usr/local/clang/include/absl/container/hash_container_defaults.hexpanded from macro 'absl_nonnull':
19:
  In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | :#59d:
e/usr/local/clang/include/absl/strings/cord.hf:i1672n:e41 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non n1672u | liln l_iNnoen nvuolild
       C| o                     ^r
d::Advance(CharIteraIn file included from ts2geography/coverings.cco:r2*:
 In file included from as2geography/coverings.hb:s4l:
_In file included from n../src/s2/s2region_coverer.ho:n31n:
uIn file included from l../src/s2/s2cell.hl: 28i:
tIn file included from ,../src/s2/s1chord_angle.h :s29i:
zIn file included from e../src/s2/s1angle.h_:t28 :
nIn file included from _../src/s2/s2point.hb:y27t:
eIn file included from s../src/s2/s2coder.h): 23{:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                        ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 94note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:  31241:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d851e:f45i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _851n | o n n u l l  b_oNooln n(ualbls
l      :| :                     ^t
ype_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2geography/linear-referencing.ccu:l2l:
 In file included from _s2geography/linear-referencing.hN:o4n:
nIn file included from us2geography/geography.hl:l4
:
      In file included from | ../src/s2/s2polygon.h                     ^:
29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2geography/coverings.cc  :1602 | :
iIn file included from ns2geography/coverings.hl:i4n:
eIn file included from  ../src/s2/s2region_coverer.hu:i31n:
tIn file included from 1../src/s2/s2cell.h6:_28t:
 In file included from L../src/s2/s1chord_angle.ho:a29d:
1In file included from 6../src/s2/s1angle.h(:c28o:
nIn file included from s../src/s2/s2point.ht: 27v:
oIn file included from i../src/s2/s2coder.hd:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 437p:)47 :{ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                   ^

  /usr/local/clang/include/absl/base/nullability.h437: | 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _sNtodn:n:usltlr
i      n| g                     ^*
 absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       |                      ^
s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline voIn file included from is2geography/coverings.ccd: 2S:
tIn file included from os2geography/coverings.hr:e41:
6In file included from (../src/s2/s2region_coverer.hv:o31i:
dIn file included from *../src/s2/s2cell.h :a28b:
sIn file included from l../src/s2/s1chord_angle.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from p../src/s2/s2point.h,: 27u:
iIn file included from n../src/s2/s2coder.ht:1236:
_In file included from t/usr/local/clang/include/absl/status/status.h :v67):
 In file included from {/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                          ^
/usr/local/clang/include/absl/strings/cord.h:480/usr/local/clang/include/absl/base/nullability.h::39241:: 22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  480   | 241  |  # d eufsiinneg  apbosiln_tneorn n=u lclo n_sNto nvnaullule
_      t| y                     ^p
e* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2geography/coverings.ccf:i2n:
eIn file included from  s2geography/coverings.ha:b4s:
lIn file included from _../src/s2/s2region_coverer.hn:o31n:
nIn file included from u../src/s2/s2cell.hl:l28 :
_In file included from N../src/s2/s1chord_angle.ho:n29n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(In file included from cs2geography/linear-referencing.cco:r2d:
_In file included from is2geography/linear-referencing.hn:t4e:
rIn file included from ns2geography/geography.ha:l4::
:In file included from C../src/s2/s2polygon.ho:r29d:
RIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.hp:*43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n57u:
lIn file included from l/usr/local/clang/include/absl/hash/hash.h :t89r:
eIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h):;79
:
      /usr/local/clang/include/absl/base/internal/endian.h| :                                                   ^172
:27:/usr/local/clang/include/absl/base/nullability.h :warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'172
 | i  n241l | i#ndee fvionied  aSbtsolr_en3o2n(nvuolild *_ Naobnsnlu_lnlo
n      n| u                     ^l
l p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2geography/coverings.cc
:2  :
241In file included from  | s2geography/coverings.h#:d4e:
fIn file included from i../src/s2/s2region_coverer.hn:e31 :
aIn file included from b../src/s2/s2cell.hs:l28_:
nIn file included from o../src/s2/s1chord_angle.hn:n29u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord*In file included from  s2geography/linear-referencing.cca:b2s:
lIn file included from _s2geography/linear-referencing.hn:o4n:
nIn file included from us2geography/geography.hl:l4 :
cIn file included from o../src/s2/s2polygon.hr:d29):
;In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h      :| 43                                       ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:/usr/local/clang/include/absl/base/nullability.h19::
241In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h22::57 :
In file included from note: /usr/local/clang/include/absl/hash/hash.hexpanded from macro 'absl_nonnull':
89:
  In file included from 241/usr/local/clang/include/absl/hash/internal/hash.h | :#79d:
e/usr/local/clang/include/absl/base/internal/endian.hf:i176n:e36 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n176n | uilnll i_nNeo nuniunltl6
4      _| t                     ^ 
Load64(const void* absl_In file included from ns2geography/coverings.cco:n2n:
uIn file included from ls2geography/coverings.hl: 4p:
)In file included from  ../src/s2/s2region_coverer.h{:
31      :
| In file included from                                    ^../src/s2/s2cell.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1chord_angle.h241::2922:
:In file included from  ../src/s2/s1angle.hnote: :expanded from macro 'absl_nonnull'28
:
In file included from   ../src/s2/s2point.h241: | 27#:
dIn file included from e../src/s2/s2coder.hf:i23n:
eIn file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
n/usr/local/clang/include/absl/strings/cord.hu:l507l: 43_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  
507       | |                       ^ 
  void InitTree(cord_internal::CordRep* absl_nonnuIn file included from ls2geography/linear-referencing.ccl: 2t:
rIn file included from es2geography/linear-referencing.he:)4;:

In file included from       s2geography/geography.h| :                                          ^4
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/container/flat_hash_map.h:: 43note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19  :
241In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h#:d57e:
fIn file included from i/usr/local/clang/include/absl/hash/hash.hn:e89 :
aIn file included from b/usr/local/clang/include/absl/hash/internal/hash.hs:l79_:
n/usr/local/clang/include/absl/base/internal/endian.ho:n180n:u27l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn  180 | inline void Store64(uvloli
d      *|                       ^a
bsl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:In file included from 39s2geography/linear-referencing.cc::2:
In file included from s2geography/linear-referencing.h: 4warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2geography/geography.h:4:
In file included from   ../src/s2/s2polygon.h655: | 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h :e43x:
pIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hi:c19i:
tIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hC:h57a:
rIn file included from I/usr/local/clang/include/absl/hash/hash.ht:e89r:
aIn file included from t/usr/local/clang/include/absl/hash/internal/hash.ho:r79(:
c/usr/local/clang/include/absl/base/internal/endian.ho:n266s:t36 :C owarning: rd* abtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n266n | uilnll icnoer du)i
n      t| 6                                      ^4
_t/usr/local/clang/include/absl/base/nullability.h :L241o:a22d:6 4note: (expanded from macro 'absl_nonnull'c
on  s241t |  #vdoeifdi*n ea basbls_ln_onnonnunlull lp )_ N{o
n      n| u                                   ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2geography/linear-referencing.cc::272:
:
In file included from In file included from ../src/s2/s2coder.hs2geography/linear-referencing.h::234:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2geography/geography.h::674:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2polygon.h::2929:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h667::4344:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h:warning: 19type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from   /usr/local/clang/include/absl/hash/hash.h667: | 89 :
 In file included from s/usr/local/clang/include/absl/hash/internal/hash.ht:a79t:
i/usr/local/clang/include/absl/base/internal/endian.hc: 270C:o27r:d  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
van  c270e | AinndlRienaed (vCohiadr IStteorraet6o4r(*v oaibds*l _anbosnln_unloln niutl,l  spi,z eu_itn tn6_4b_ytt evs)) ;{

            | |                                            ^                          ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :s2geography/distance.cc173::23:
:In file included from  s2geography/distance.h:warning: 4passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from s2geography/geography.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::4135:
:In file included from 16../src/s2/s2polygon.h:: 29:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/flat_hash_map.h
:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h  :13527 | :
  /usr/local/clang/include/absl/container/internal/raw_hash_set.h : 2663 : 53 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
his)) )2663  | A B S L _ A TTT&R&I BvUaTlEu_eL IAFBESTLI_MIEN_TBEORUNNADL _{A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) 
        | \                                                    ^~~~

      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGL/usr/local/clang/include/absl/container/internal/raw_hash_set.hE:_2692A:R58G:( )warning: )'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes];

      |                                             ^
 2692/usr/local/clang/include/absl/container/internal/raw_hash_map.h | : 120 : 9 :   note: cmacro 'ABSL_INTERNAL_X' defined hereo
nst   120T | &# dveafliunee  AABBSSLL__IINNTTEERRNNAALL__AXT(TFRuInBcU,T EC_aClAlPeTeU,R EKDQ_uBaYl(,t hViQsu)a)l
,       | K                                                         ^~~~V
alue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL/usr/local/clang/include/absl/container/internal/raw_hash_set.h_:I2734N:T65E:R Nwarning: A'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
_ATTR I2734B | U T E _ C A P T U R E D _ B Y ( t h iTs&)&) ,v a l u e   A B S L _ I N T E R N A L _ A T T R I B U\T
E      _| C                                                   ^A
PTU/usr/local/clang/include/absl/container/internal/common.hR:E31D:_9B:Y (note: tmacro 'ABSL_INTERNAL_IF_true' defined hereh
is)   )31
 |       #| d                                                                ^~~~e
fine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:4:
In file included from ../src/s2/s2region_coverer.h:33:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2geography/geography.cca:b2s:
lIn file included from _s2geography/geography.hn:o4n:
nIn file included from u../src/s2/s2polygon.hl:l29 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_map.ho:n45n:
u/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l198
:      3| :                     ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |       In file included from  s2geography/coverings.cc : 2 :
AIn file included from Bs2geography/coverings.hS:L4_:
IIn file included from N../src/s2/s2region_coverer.hT:E33R:
NIn file included from A../src/s2/s2cell_union.hL:_29A:
TIn file included from T/usr/local/clang/include/absl/flags/flag.hR:I40B:
U/usr/local/clang/include/absl/flags/commandlineflag.hT:E193_:C27A:P Twarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ED_  B193Y | ( t hviisr)t)u,a l   v o i d   R e a d ( v o i d *   a b s l _ n o n\n
u      l| l                                                   ^ 
ds/usr/local/clang/include/absl/container/internal/common.ht:)32 :c9o:n snote: tmacro 'ABSL_INTERNAL_IF_false' defined here 
= 0   ;32
 |       #| d                          ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fIiFn_ef aalbssel(_info_nsnautlils f_iNeodn,n u.l.l.
)       | _                     ^_
VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &In file included from &s2geography/coverings.cc,: 2c:
oIn file included from ns2geography/coverings.hs:t4&:
,In file included from  ../src/s2/s2region_coverer.ht:r33u:
eIn file included from ,../src/s2/s2cell_union.h
:      29| :
  ^In file included from 
/usr/local/clang/include/absl/flags/flag.h:42/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 133/usr/local/clang/include/absl/flags/internal/flag.h::5230::
 /usr/local/clang/include/absl/base/call_once.hnote: :expanded from macro 'ABSL_INTERNAL_X'52
:24:   warning: 133type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
        52  |  s t d :A:BaStLo_mIiNcT<EuRiNnAtL3_2A_TtT>R*I BaUbTsEl__CnAoPnTnUuRlElD _CBoYn(ttrhoilsW)o)r,d ( 
        |                         ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f\i
n      e|                                                     ^a
bsl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
_No   n31n | u#ldle
f      i| n                     ^e
 ABSL_INTERIn file included from Ns2geography/coverings.ccA:L2_:
IIn file included from Fs2geography/coverings.h_:t4r:
uIn file included from e../src/s2/s2region_coverer.h(:i33f:
_In file included from s../src/s2/s2cell_union.ha:t29i:
sIn file included from f/usr/local/clang/include/absl/flags/flag.hi:e42d:
,In file included from  /usr/local/clang/include/absl/flags/internal/flag.h.:.30.:
)/usr/local/clang/include/absl/base/call_once.h :i53f:_22s:a twarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
fi   e53d | 
        |          ^ 
absl::once_flagIn file included from *s2geography/geography.cc :a2b:
sIn file included from ls2geography/geography.h_:n4o:
In file included from ../src/s2/s2polygon.h:n29n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl: 45f:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:g202):;3
:       | warning:                      ^
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/base/nullability.h:241:22:   202note:  | expanded from macro 'absl_nonnull' 
 A  B241S | In file included from L#s2geography/distance.cc_d:Ie2Nf:
TiIn file included from Ens2geography/distance.hRe:N 4Aa:
LbIn file included from _ss2geography/geography.hXl:_(4in:
noIn file included from ns../src/s2/s2polygon.hen:ru29tl:
l_ In file included from _o/usr/local/clang/include/absl/container/flat_hash_map.hNr:_o45an:
nsu/usr/local/clang/include/absl/container/internal/raw_hash_map.hsl:il143
g:n      59,| :                      ^ i
warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
ert_  o143r | _ a s s i g n _ i m p l ,   & & ,   cfoanlsste&,,  ftarlusee,,
       A| B  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~S
L_I  N203T | E R N A L _ S I N G L E _ A R G ( ) )t;r
u      e| ,                                                          ^ 
.f/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:r120s:t9,:  cnote: omacro 'ABSL_INTERNAL_X' defined heren
st_  i120t | e#rdaIn file included from etfois2geography/coverings.ccrn e:A BA2SBL:
S_In file included from LI_NITs2geography/coverings.hNET:REN4RA:
NLAIn file included from _L../src/s2/s2region_coverer.hC_O:XM(33MFA:
u)n;In file included from c
../src/s2/s2cell_union.h,       :| C                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~29a
:
lIn file included from l/usr/local/clang/include/absl/container/internal/raw_hash_map.he/usr/local/clang/include/absl/flags/flag.h:e:133,42: :
47KIn file included from :Q/usr/local/clang/include/absl/flags/internal/flag.h u:anote: lexpanded from macro 'ABSL_INTERNAL_X',30
 :
V/usr/local/clang/include/absl/base/call_once.hQ  u:133a96 | l :, 33  K V: a  l uwarning:  e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],  
AVBVSaL   l_96uIeN, | T E TR aNifAlLr,_ Ai.T.T.Re)nI dB\U 
sT      Et| d        ^_:
C:AaPtToUmRiEcD<_uBiYn(tt3h2i_st)>)*,  a b s l _ n o n n u l l   b a s e _ i n t e r n a l\:
:      C| o                                              ^~~~n
trolWor/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:(202
:      3| :                                ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/base/nullability.h
:/usr/local/clang/include/absl/container/internal/raw_hash_map.h241::13522::16 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241 |   #135d | e f i n e   a b s l _tnhoinsn)u)l)l  A_BNSoLn_n/usr/local/clang/include/absl/container/internal/raw_hash_map.hAu:lTl142T
:R      3I| :B                     ^ U
warning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
_LIF  E142In file included from T | Is2geography/coverings.cc M :EA_B2BSOL:
U_NIIn file included from DNs2geography/coverings.hT :E{R4 N :
A LIn file included from  _../src/s2/s2region_coverer.h X: (33 i :
n In file included from s e r../src/s2/s2cell_union.h t :_ o29 r :
_ aIn file included from  s /usr/local/clang/include/absl/flags/flag.hs i: g 42n :
,  In file included from  i /usr/local/clang/include/absl/flags/internal/flag.hn s: e30 r :
t\_/usr/local/clang/include/absl/base/call_once.h
o:      r97| _               ^:a
s18s/usr/local/clang/include/absl/container/internal/common.hi::g 31nwarning: :_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]9i
:m p   note: lmacro 'ABSL_INTERNAL_IF_true' defined here97,
  | c    o 31 n  | s# t d&eo,fn iccnoeen _sAftBl&Sa,L
g_      I*| N  ^ Ta
EbR/usr/local/clang/include/absl/container/internal/raw_hash_map.hNs:Al133L_:_n52Io:Fn _nnote: texpanded from macro 'ABSL_INTERNAL_X'ur
lule  ( 133if | f l_a s ag t )i; s
 f       i|  e                  ^dA
,B /usr/local/clang/include/absl/base/nullability.hS.L:._.241I)N: Ti22EfR_:NsA aLtnote: _expanded from macro 'absl_nonnull'iAs
TfT  iRe241IdB | 
#Ud      Te| Ef        ^i_
nCeA PaTbUsRlE_DIn file included from n_os2geography/geography.ccBn:Yn2(u:
ltIn file included from lhs2geography/geography.hi :s_4)N:
)oIn file included from ,n../src/s2/s2polygon.hn :u l29 l:
 
 In file included from        /usr/local/clang/include/absl/container/flat_hash_map.h | :                      ^45 
:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 202 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        202  | \ 
       A| B                                                   ^S
L_INTER/usr/local/clang/include/absl/container/internal/common.hN:A32L:_9X:( inote: nmacro 'ABSL_INTERNAL_IF_false' defined heres
ert   _32o | r#_daesfsiingen ,A BiSnLs_eIrNtT_EoRrN_AaLs_sIiFg_nf_ailmspel(,i f&_&s,a tciosnfsite&d,,  t.r.u.e), 
_      _| V  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A
_AR  G203S | _ In file included from _ 
 s2geography/coverings.cc       :|  2        ^ :

 In file included from  s2geography/coverings.h : 4 :
 In file included from  ../src/s2/s2region_coverer.h : 33In file included from  :
s2geography/distance.cc In file included from : ../src/s2/s2cell_union.h2t::
r29In file included from u:
s2geography/distance.heIn file included from :,/usr/local/clang/include/absl/flags/flag.h4 ::
.42In file included from f:
s2geography/geography.hiIn file included from :r/usr/local/clang/include/absl/flags/internal/flag.h4s::
t30In file included from ,:
../src/s2/s2polygon.h :c/usr/local/clang/include/absl/base/call_once.h29o::
n111In file included from s:/usr/local/clang/include/absl/container/flat_hash_map.ht40:_:45i :
twarning: /usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e:r
142a:t3o:r    111warning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | Bv
SoLi_d  I 142NL | oT Ew RLANBAeSLLv__CeIlONCMTMaElAlR)ON;An
Lc      _e| (Xa                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(b
isnl/usr/local/clang/include/absl/container/internal/raw_hash_map.h:s::e135ro:tn11_c:eo _note: rfexpanded from macro 'ABSL_INTERNAL_X'_l
aasg  s*135i  | g an ,b  s i ln _s ne or t n_tnohrui_lsla) s)sf)i lgAangB_S,iL m_pCAlTa,T lRcIloBnsaUtbT&El,e_ &LcI&oF nEfsntT&,I
,M
      E      | _                                       ^| B
  ^O
U/usr/local/clang/include/absl/base/nullability.hN:/usr/local/clang/include/absl/container/internal/raw_hash_map.hD241: :135{22: :16  : note:  expanded from macro 'absl_nonnull' note:  expanded from macro 'ABSL_INTERNAL_X'
 
    241    | 135 # |   d  e   f i  n e      a   b  ts lh i s ) _) )n   oA Bn\S
nL      u_| A          ^~~~lT
TlR I_BNUoTnEn_uLlIlF
E      T| I                     ^M
E_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:A205R:G3(:) )warning: ;passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      |                                                          ^
  205/usr/local/clang/include/absl/container/internal/raw_hash_map.h | : 120 :A9B:S Lnote: _macro 'ABSL_INTERNAL_X' defined hereI
NTE  R120N | A#Ld_eXf(iinnes eArBtS_Lo_rI_NaTsEsRiNgAnL,_ Xi(nFsuenrct,_ oCra_lalsesei,g nK_Qiumapll,,  V&Q&u,a l&,& ,K Vfaallusee,,  VfVaallsuee,,
       T| a  ^i
l,/usr/local/clang/include/absl/container/internal/raw_hash_map.h :.133.:.52):  \note: 
expanded from macro 'ABSL_INTERNAL_X'      
|         ^
  133 |        In file included from  s2geography/coverings.cc : 2A:
BIn file included from Ss2geography/coverings.hL:_4I:
NIn file included from T../src/s2/s2region_coverer.hE:R33N:
AIn file included from L../src/s2/s2cell_union.h_:A29T:
TIn file included from R/usr/local/clang/include/absl/flags/flag.hI:B42U:
TIn file included from E/usr/local/clang/include/absl/flags/internal/flag.h_:C30A:
P/usr/local/clang/include/absl/base/call_once.hT:U153R:E41D:_ Bwarning: Ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
this  )153) | ,        C a l l O n c e I m p l ( s t d : : a t o m i\/usr/local/clang/include/absl/container/internal/raw_hash_map.hc
:<      144u| :                                                   ^i3n
t:3 2warning: /usr/local/clang/include/absl/container/internal/common.h_passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:t
32>:*9   a:144b snote: l | macro 'ABSL_INTERNAL_IF_false' defined here_ 
 nA   Bo32Sn | L#n_duIeNlflTiE ncRoenN AtArLB_oSXLl(_,iIn
NsT      eE| r                                        ^Rt
N_AoL/usr/local/clang/include/absl/base/nullability.hr__:Ia241Fs_:sfi22agl:ns ,note: e (expanded from macro 'absl_nonnull'ii
nfs  _es241ra | tt#_iosdfrei_efadi,s ns.ei.g .n)a_ ib_ms_lVpA_l_n,A oRcnGoSnnu_s_tl
&l      , |  _        ^cN
oonnnsutl&l,
In file included from 
      s2geography/geography.cc      | :                     ^| 2  ^
:

In file included from s2geography/geography.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h4::
133In file included from :../src/s2/s2polygon.h52::29 :
In file included from note: /usr/local/clang/include/absl/container/flat_hash_map.hexpanded from macro 'ABSL_INTERNAL_X':
45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:  205133: | 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       205A | B S LA_BISNLT_EIRNNTAELR_NAATLT_RXI(BiUnTsEe_rCtA_PoTrU_RaEsDs_iBgYn(,t hiinss)e)r,t _ o r _ a s s i g n _ i m p l ,   & & ,   & & ,   f\a
l      s| e                                                   ^,
 f/usr/local/clang/include/absl/container/internal/common.ha:l32s:e9,:
       | note:   ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:   13532: | 16#:d enote: fexpanded from macro 'ABSL_INTERNAL_X'i
ne   A135B | S L _ I N T E R N A Lt_hIiFs_)f)a)l sAeB(SiLf__AsTaTtRiIsBfUiTeEd_,L I.F.E.T)I M_E__VBAO_UANRDG S{_ _ 
        |          ^ 
         In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from \../src/s2/s2polygon.h
:      29| :
               ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:45/usr/local/clang/include/absl/container/internal/common.h:
:32/usr/local/clang/include/absl/container/internal/raw_hash_map.h::9144:: 3:note:  macro 'ABSL_INTERNAL_IF_false' defined herewarning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
   32 |   #144d | e f iAnBeS LA_BISNLT_EIRNNTAELR_NXA(Li_nIsFe_rfta_losre_(aisfs_isgant,i sifniseedr,t _.o.r._)a s_s_iVgAn__AiRmGpSl_,_ 
c      o| n        ^s
t&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ..In file included from .s2geography/geography.cc): 2i:
fIn file included from _s2geography/geography.hs:a4t:
iIn file included from s../src/s2/s2polygon.hf:i29e:
dIn file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h      :| 45        ^:

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207In file included from :s2geography/coverings.cc3::2 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2geography/coverings.hIn file included from 
:s2geography/distance.cc4::
  2In file included from 207:
../src/s2/s2region_coverer.h | In file included from  :s2geography/distance.h 33:A:
4BIn file included from :
S../src/s2/s2cell_union.hIn file included from L:s2geography/geography.h_29:I:
4NIn file included from :
T/usr/local/clang/include/absl/flags/flag.hIn file included from E:../src/s2/s2polygon.hR42:N:
29AIn file included from :
L/usr/local/clang/include/absl/flags/internal/flag.hIn file included from _:/usr/local/clang/include/absl/container/flat_hash_map.hX30:(:
45i:
n/usr/local/clang/include/absl/base/call_once.h/usr/local/clang/include/absl/container/internal/raw_hash_map.hs::e194144r::t313_::o  rwarning: warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a

ssi  g194  n | 144,i |   in nAlsBeiSrnLt_e_Io NrTs_EtaRdsNs:A:iLga_ntX_(oiimminpscl<e,ru ti&_n&to,r3 _&a2&_s,st if>gan*l,s  eia,n bsterrutse_,lo_
rn      _o| a  ^ns
sni/usr/local/clang/include/absl/container/internal/raw_hash_map.hgu:nl133_li: m52pC:lo ,nnote:  expanded from macro 'ABSL_INTERNAL_X'cto
rnos  tl133&W | o,  r cd o (n s
 t       & , 
|        A                              ^| B
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~S
L/usr/local/clang/include/absl/base/nullability.h_  I:145N241 | T E: R22 N :A L _ Anote:  T expanded from macro 'absl_nonnull'T R
 I   B 241U T |  E #_ dC Ae PffTaiUlRnsEeeD, _ BatYbr(sutelh,i_ sAn)oB)Sn,nLu _l I lN T  _E R NNo A nL n_ S uIlN Gl L 
E       _ | A R                     ^ G 
( ) ) ; 
        | \                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from 
      s2geography/coverings.cc| :/usr/local/clang/include/absl/container/internal/raw_hash_map.h                                                   ^2:
:
135In file included from :/usr/local/clang/include/absl/container/internal/common.hs2geography/coverings.h11:::324 ::
9note: In file included from expanded from macro 'ABSL_INTERNAL_X':../src/s2/s2region_coverer.h
 :note: 33  macro 'ABSL_INTERNAL_IF_false' defined here:
135
In file included from  | ../src/s2/s2cell_union.h    :32 29  | :
 # In file included from d e/usr/local/clang/include/absl/flags/flag.h f :i n42 e:
t hIn file included from AiB/usr/local/clang/include/absl/flags/internal/flag.hsS):L)_30)I :
N/usr/local/clang/include/absl/base/call_once.hATB:ES195RLN:_AA16LT_:TIR FI_warning: BfUtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aTl
Es_e  L(I195iFf | E_TsI aMt Ei_s BfO iUeoNdDn,  c{. e. ._ )f l  _a _ gV A* _  A Ra G bS s_ l_ _ 
 n      o |  n        ^ n
u l l   f lIn file included from  as2geography/geography.ccg : )2  :
\{In file included from 

s2geography/geography.h            :| | 4               ^          ^~~~:


In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polygon.h::24129::
22In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h :note: 45expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207  :2413 | :# dwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f
ine   207a | b s lA_BnSoLn_nIuNlTlE R_NNAoLn_nXu(liln
s      e| r                     ^t
_or_assign, insert_or_assign_im/usr/local/clang/include/absl/container/internal/raw_hash_map.hp:l147,: 52&:& ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]&
&,   f147a | l s e ,   t r u e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 135f:a16l:s enote: ,expanded from macro 'ABSL_INTERNAL_X' 
ABSL  _135I | N TIn file included from  E Rs2geography/coverings.cc N :A 2L _:
 S In file included from I Ns2geography/coverings.htGh:Li4Es_:
)AIn file included from R)G../src/s2/s2region_coverer.h)(: )A)33B;S:

LIn file included from       _../src/s2/s2cell_union.h| A                                                   ^:T
T29R:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIIn file included from B:/usr/local/clang/include/absl/flags/flag.hU120T::E429_:
:LIn file included from  I/usr/local/clang/include/absl/flags/internal/flag.hFnote: Emacro 'ABSL_INTERNAL_X' defined hereT:
I30M:
E  /usr/local/clang/include/absl/base/call_once.h120_: | B#Od200UeN:fDi40 n{:e    warning: A Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] S L
_ I N   T E200 R |  N vA Lo _i X d( F  u Ln co , w  CL a el lv ee e l, C\ a
Kl      Ql| u               ^Oa
ln/usr/local/clang/include/absl/container/internal/common.h,c :eV31(Q:ua9abl:,s  lKnote: Vmacro 'ABSL_INTERNAL_IF_true' defined here:a
l:u   oen31,c |  #VeVda_elfulfeia,ng eT* a AiBalS,bL _s.I.lN.T_)E nR\No
An      Ln| _        ^uI
Fl_lt rfulea(gi,f _Csaaltliasbfliee&d&,  f.n.,.
)       | i                                       ^f
_s/usr/local/clang/include/absl/base/nullability.ha:t241i:s22f:i enote: dexpanded from macro 'absl_nonnull'

      |           ^241
 | #define abslIn file included from _s2geography/geography.ccn:o2n:
nIn file included from us2geography/geography.hl:l4 :
_In file included from N../src/s2/s2polygon.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:
45      :
| /usr/local/clang/include/absl/container/internal/raw_hash_map.h                     ^:
207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_/usr/local/clang/include/absl/container/internal/raw_hash_map.hI:N146T:E3R:N Awarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
X(in  s146e | r t _AoBrS_La_sIsNiTgEnR,N AiLn_sXe(ritn_soerr_ta_sosri_gans_siimgpnl,,  i&n&s,e r&t&_,o rf_aalsssei,g nt_riumep,l
,       | c  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
nst  &208, |   c o n s t & ,   t r u e , 
        |    ^ 
.f/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:r133s:t52,:  cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
st_  i133t | e r a t o r   A B S LA_BISNLT_EIRNNTAELR_NCAOLM_MAAT)T;R
I      B| U                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~T
E_C/usr/local/clang/include/absl/container/internal/raw_hash_map.hA:P135T:U11R:E Dnote: _expanded from macro 'ABSL_INTERNAL_X'B
Y(th  i135s | ) ) ,                t h i s ) ) )   A B S L _ A T T R I B\U
T      E| _                                                   ^L
IF/usr/local/clang/include/absl/container/internal/common.hE:T31I:M9E:_ Bnote: Omacro 'ABSL_INTERNAL_IF_true' defined hereU
ND    {31  |  # d e f i n e   A B S L _ I N T E R N A L _ I F _ t r u e\(
i      f| _          ^~~~s
atisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |        /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 209 :AB3S:L _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
TERN  A209L | _ A TATBRSILB_UITNET_ECRANPATLU_RXE(Di_nBsYe(rtth_iosr)_)a,s s i g n ,   i n s e r t _ o r _ a s s i g n _ i m p\l
,       | &                                              ^~~~&
, &&, tru/usr/local/clang/include/absl/container/internal/raw_hash_map.he:,146 :f3a:l swarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],

      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :  ^135
:16:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :133note: :expanded from macro 'ABSL_INTERNAL_X'52
: note:   expanded from macro 'ABSL_INTERNAL_X'135
 |       133  |           t h i s ) )A)B SALB_SILN_TAETRTNRAILB_UATTET_RLIIBFUETTEIM_EC_ABPOTUUNRDE D{_ B Y ( t h i s ) ) ,                                        \ 
        |                 ^ 
 \/usr/local/clang/include/absl/container/internal/common.h
:      32| :                                                   ^9
: note: /usr/local/clang/include/absl/container/internal/common.hmacro 'ABSL_INTERNAL_IF_false' defined here:
31:9:    32 | note: #macro 'ABSL_INTERNAL_IF_true' defined hered
efi   n31e |  #AdBeSfLi_nIeN TAEBRSNLA_LI_NITFE_RfNaAlLs_eI(Fi_ft_rsuaet(iisff_iseadt,i s.f.i.e)d ,_ _.V.A._)A RiGfS__s_a
t      i| s        ^f
ied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_imIn file included from ps2geography/distance.ccl:,2 :
&In file included from &s2geography/distance.h,: 4&:
&In file included from ,s2geography/geography.h :t4r:
uIn file included from e../src/s2/s2polygon.h,: 29f:
aIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hs:e45,:

      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~149
:51:   210warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      149  |                         . f i r s t ,t rcuoen,s tA_BiStLe_rIaNtToErR NAABLS_LS_IINNGTLEER_NAARLG_(C)O)M;M
A      )| ;                                                  ^

      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
120:9:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :133note: :macro 'ABSL_INTERNAL_X' defined here47
: note:   expanded from macro 'ABSL_INTERNAL_X'120
 | #de  f133i | n e   A B S L _ I N TAEBRSNLA_LI_NXT(EFRuNnAcL,_ ACTaTlRlIeBeU,T EK_QCuAaPlT,U RVEQDu_aBlY,( tKhViasl)u)e,,   V V a l u e ,   T a i l ,   . . . )   \ 
        |          ^ 
\
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:   14832: | 3#:d ewarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ne A  B148S | L _ IANBTSELR_NIANLT_EIRFN_AfLa_lXs(ei(nisfe_rsta_toirs_faisesdi,g n.,. .i)n s_e_rVtA__oArR_GaSs_s_i
g      n| _        ^i
mpl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2geography/geography.cc::1482::
3In file included from :s2geography/geography.h :4warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45  :
148 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 211A:B3S:L _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
TERN  A211L | _ X (AiBnSsLe_rItN_ToErR_NaAsLs_iXg(ni,n sienrste_rotr__oars_saisgsni,g ni_nismeprlt,_ ocro_nassts&i,g nc_oinmsptl&,,  &t&r,u e&,&
,       | t  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r
ue  ,149  | t r u e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 133 : 52 :   note: texpanded from macro 'ABSL_INTERNAL_X'r
ue,   133A | B S L _ I N T E R N AALB_SSLI_NIGNLTEE_RANRAGL(_)A)T;T
R      I| B                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~U
TE_/usr/local/clang/include/absl/container/internal/raw_hash_map.hC:A133P:T47U:R Enote: Dexpanded from macro 'ABSL_INTERNAL_X'_
BY(  t133h | i s ) ) ,            A B S L _ I N T E R N A L _ A T T R I B U\T
E      _| C                                                   ^A
PT/usr/local/clang/include/absl/container/internal/common.hU:R31E:D9_:B Ynote: (macro 'ABSL_INTERNAL_IF_true' defined heret
his   )31) | ,# d e f i n e   A B S L _ I N T E R N A L _ I F _ t r\u
e      (| i                                              ^~~~f
_satisf/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:e148d:,3 :. .warning: .passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
 /usr/local/clang/include/absl/container/internal/raw_hash_map.hi:f135_:s16a:t inote: sexpanded from macro 'ABSL_INTERNAL_X'f
ied  
135       | |          ^ 
        this))In file included from )s2geography/geography.cc :A2B:
SIn file included from Ls2geography/geography.h_:A4T:
TIn file included from R../src/s2/s2polygon.hI:B29U:
TIn file included from E/usr/local/clang/include/absl/container/flat_hash_map.h_:L45I:
F/usr/local/clang/include/absl/container/internal/raw_hash_map.hE:T211I:M3E:_ Bwarning: O'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]U
ND {    211  |      A B S L _ I N T E R N A L _ X ( i n s e r t _ o r\_
a      s| s               ^i
gn/usr/local/clang/include/absl/container/internal/common.h,: 31i:n9s:e rnote: tmacro 'ABSL_INTERNAL_IF_true' defined here_
or_   a31s | s#idgenf_iinmep lA,B S&L&_,I N&T&E,R NtArLu_eI,F _ttrruuee,(
i      f| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
ati  s212f | i e d ,   . . . )   i f _ s a t i s f.ifeidr
s      t| ,        ^ 
const_iterator In file included from As2geography/distance.ccB:S2L:
_In file included from Is2geography/distance.hN:T4E:
RIn file included from Ns2geography/geography.hA:L4_:
CIn file included from O../src/s2/s2polygon.hM:M29A:
)In file included from ;/usr/local/clang/include/absl/container/flat_hash_map.h
:      45| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:148:3/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 133:warning: 47'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'ABSL_INTERNAL_X'
  148 |    133  | A B S L _ I N T E R NAABLS_LX_(IiNnTsEeRrNtA_Lo_rA_TaTsRsIiBgUnT,E _iCnAsPeTrUtR_EoDr__BaYs(stihgins_)i)m,p l ,   c o n s t & ,   c o n s t & ,   t r u e , 
       \| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                                               ^~~~
  149 |      /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 211 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 135 :t16r:u enote: ,expanded from macro 'ABSL_INTERNAL_X' 
ABS  L135_ | I N T E R N A L _ S ItNhGiLsE)_)A)R GA(B)S)L;_
A      T| T                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~R
IBU/usr/local/clang/include/absl/container/internal/raw_hash_map.hT:E135_:L11I:F Enote: Texpanded from macro 'ABSL_INTERNAL_X'I
ME_  B135O | U N D   {            t h i s ) ) )   A B S L _ A T T R I B U T E _ L I\F
E      T| I               ^M
E_/usr/local/clang/include/absl/container/internal/common.hB:O31U:N9D:  {note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e f i n e   A B S L _ I N T E R N A L _ I\F
_      t| r          ^~~~u
e(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:r152_:a52s:s iwarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
, i  n152s | e r t _ o r _ a s s i g n _ i m p l ,f a&l&s,e ,& &A,B StLr_uIeN,T EtRrNuAeL,_
S      I| N  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~G
LE_  A212R | G ( ) ) ; 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 120 : 9 :   note: .macro 'ABSL_INTERNAL_X' defined heref
irs  t120, |  #cdoenfsitn_ei tAeBrSaLt_oIrN TAEBRSNLA_LI_NXT(EFRuNnAcL,_ CCOaMlMlAe)e;,
       K| Q                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
al,/usr/local/clang/include/absl/container/internal/raw_hash_map.h :V135Q:u11a:l ,note:  expanded from macro 'ABSL_INTERNAL_X'K
Val  u135e | ,   V V a l u e ,   Ttahiils,) ).). .A)B S\L
_      A| T        ^T
RIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :s2geography/distance.cc233::258:
:In file included from  s2geography/distance.h:warning: 4:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:  29233:
 | In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 45 :
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h :k151e:y3_:a rwarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]<
K>&&   151k |   A BASBLS_LI_NITNETRENRANLA_LA_TXT(RiInBsUeTrEt__CoArP_TaUsRsEiDg_nB,Y (itnhsiesr)t,_
o      r| _                                                         ^~~~a
ssign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |            /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 252 : 63 :   warning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
ue,   A252B | S L _ I N T EcRoNnAsLt_ SkIeNyG_LaEr_gA<RKG>(&) )k; 
A      B| S                                                  ^L
_I/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:T120E:R9N:A Lnote: _macro 'ABSL_INTERNAL_X' defined hereA
TTR  I120B | U#TdEe_fCiAnPeT UARBESDL__BIYN(TtEhRiNsA)L,_
X      (| F                                                              ^~~~u
nc, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assi/usr/local/clang/include/absl/container/internal/raw_hash_map.hg:n267_:i75m:p lwarning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
const  &267, |   & & ,   f a l s e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 133 : 52 :  knote: eexpanded from macro 'ABSL_INTERNAL_X'y
_ar  g133< | K > & &   k   A B S LA_BISNLT_EIRNNTAELR_NAATLT_RAITBTURTIEB_UCTAEP_TCUARPETDU_RBEYD(_tBhYi(st)h,i
s      )| )                                                                          ^~~~,
                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: /usr/local/clang/include/absl/container/internal/raw_hash_map.hnote: :expanded from macro 'ABSL_INTERNAL_X'283
:64:   warning: 135 | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
       283  |       t h i s ) ) )   A B S L _ A T T R I B U T E _ L IAFBESTLI_MIEN_TBEORUNNADL _{A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) , 
        | \                                                               ^~~~

      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key /usr/local/clang/include/absl/container/internal/raw_hash_map.hA:B155S:L3_:I Nwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
RNAL  _155A | T T RAIBBSULT_EI_NCTAEPRTNUARLE_DX_(BiYn(stehrits_)o)r
_      a| s                                                                ^~~~s
ign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2geography/coverings.cc133: | 2 :
 In file included from  s2geography/coverings.h : 4 :
 In file included from  ../src/s2/s2region_coverer.h : 33A:
BIn file included from S../src/s2/s2cell_union.hL:_29I:
NTE/usr/local/clang/include/absl/flags/flag.hR:N110A:L29_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBUTE_  C110A | PvToUiRdE DS_eBtYF(ltahgi(sa)b)s,l : : F l a g < T > *   a b s l _ n o n n u l l   f l\a
g      ,|                                                     ^c
on/usr/local/clang/include/absl/container/internal/common.hs:t32 :T9&:  vnote: )macro 'ABSL_INTERNAL_IF_false' defined here 
{
         | 32                            ^ | 
#def/usr/local/clang/include/absl/base/nullability.hi:n241e: 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iInFe_ faablssle_(niofn_nsualtli s_fNioendn,u l.l.
.      )|                       ^_
_VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |  In file included from  s2geography/coverings.ccA:B2S:
LIn file included from _s2geography/coverings.hI:N4T:
EIn file included from R../src/s2/s2region_coverer.hN:A33L:
_In file included from X../src/s2/s2cell_union.h(:i29n:
s/usr/local/clang/include/absl/flags/flag.he:r118t:_29o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sign  ,118  | ivnosiedr tS_eotrF_laasgs(iagbns_li:m:pFll,a g&<&T,> *& &a,b sfla_lnsoen,n uflall sfel,a
g      ,|    ^c
on/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:t135 :V16&:  vnote: )expanded from macro 'ABSL_INTERNAL_X' 
{
      |                               ^135
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
th  i241s | )#)d)e fAiBnSeL _aAbTsTlR_InBoUnTnEu_lLlI F_ENToInMnEu_lBlO
U      N| D                     ^ 
{                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:In file included from 25s2geography/coverings.cc:: 2warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2geography/coverings.h:6:
  In file included from 142s2geography/geography.h | : 4 :
cIn file included from o../src/s2/s2polygon.hn:s29t:
eIn file included from x/usr/local/clang/include/absl/container/flat_hash_map.hp:r45 :
cIn file included from o/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:s27t:
 ch/usr/local/clang/include/absl/container/internal/raw_hash_set.ha:r2663*: 53a:b swarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
nonnull  2663f | u n c t i o nT_&n&a mvea(l)u ec oAnBsStL _nIoNeTxEcReNpAtL _{A
T      T| R                        ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) 
a      b| s                                                    ^~~~l
_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h/usr/local/clang/include/absl/types/source_location.h::2692165::5815::  warning: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  165 |   2692  | c o n s t   cchoanrs*t  aTb&s lv_anlounen uAlBlS Lf_iIlNeT_EnRaNmAeL__ A=T T"R"I;B
U      T| E              ^_
CA/usr/local/clang/include/absl/base/nullability.hP:T241U:R22E:D _note: Bexpanded from macro 'absl_nonnull'Y
(t  h241i | s#)d)e
f      i| n                                                         ^~~~e
 absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |            In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h :T4&:
&In file included from  s2geography/geography.hv:a4l:
uIn file included from e../src/s2/s2polygon.h :A32B:
SIn file included from L../src/s2/base/logging.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/check.hR:N37A:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hA:T21T:
RIn file included from I/usr/local/clang/include/absl/log/internal/check_op.hB:U41T:
EIn file included from _/usr/local/clang/include/absl/log/internal/strip.hC:A26P:
T/usr/local/clang/include/absl/log/internal/log_message.hU:R71E:D26_:B Ywarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
his)   )71
 |        |                                                                  ^~~~L
ogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operatoIn file included from rs2geography/geography.cc<:<2(:
vIn file included from os2geography/geography.hi:d4*:
 In file included from a../src/s2/s2polygon.hb:s32l:
_In file included from n../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37 :
 In file included from v/usr/local/clang/include/absl/log/internal/check_impl.h): 21{:

      /usr/local/clang/include/absl/log/internal/check_op.h| :                               ^505
:1:/usr/local/clang/include/absl/base/nullability.h :257warning: :23type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nullable'  
505 | A  B257S | L#_dLeOfGi_nIeN TaEbRsNlA_Ln_uClHlEaCbKl_eO P__NIuMlPlLa(bClhee
c      k| _                      ^L
T, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2geography/distance.cc488: | 2 :
 In file included from is2geography/distance.hn:l4i:
nIn file included from es2geography/geography.h :c4o:
nIn file included from s../src/s2/s2polygon.ht:e32x:
pIn file included from r../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37c:
hIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hr:*21 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs:l41_:
nIn file included from u/usr/local/clang/include/absl/log/internal/strip.hl:l26a:
b/usr/local/clang/include/absl/log/internal/log_message.hl:e161 :n38a:m ewarning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
Imp  l161( |      L o g M e s s a g e &   o p e r a\t
o      r| <                               ^<
(co/usr/local/clang/include/absl/base/nullability.hn:s257t: 23v:o inote: dexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneuflilnaeb laeb s lv_)n u{l
l      a| b                                     ^l
e /usr/local/clang/include/absl/base/nullability.h_:N257u:l23l:a bnote: lexpanded from macro 'absl_nullable'e

      |                         ^257
 | #define absIn file included from ls2geography/geography.cc_:n2u:
lIn file included from ls2geography/geography.ha:b4l:
eIn file included from  ../src/s2/s2polygon.h_:N32u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                      ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2geography/distance.ccn:e2 :
aIn file included from bs2geography/distance.hs:l4_:
nIn file included from os2geography/geography.hn:n4u:
lIn file included from l../src/s2/s2polygon.h :_32N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NIn file included from us2geography/geography.ccl:l2a:
bIn file included from ls2geography/geography.he:
4      :
| In file included from                       ^../src/s2/s2polygon.h
:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr consIn file included from ts2geography/distance.cc :c2h:
aIn file included from rs2geography/distance.h*: 4a:
bIn file included from ss2geography/geography.hl:_4n:
uIn file included from l../src/s2/s2polygon.hl:a32b:
lIn file included from e../src/s2/base/logging.h :n21a:
mIn file included from e/usr/local/clang/include/absl/log/check.h#:#37I:
mIn file included from p/usr/local/clang/include/absl/log/internal/check_impl.hl:(21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 190 : 42 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                ^
  190/usr/local/clang/include/absl/base/nullability.h | : 257 :L23o:g Mnote: eexpanded from macro 'absl_nullable's
sa  g257e | &# doepfeirnaet oarb<s<l(_sntudl:l:aobslter e_aNmu&l l(a*balbes
l      _| n                      ^o
nnull m)(In file included from ss2geography/geography.cct:d2::
:In file included from os2geography/geography.hs:t4r:
eIn file included from a../src/s2/s2polygon.hm:&32 :
oIn file included from s../src/s2/base/logging.h):)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                         ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 505:note: 1expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e498f:i35n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_  n498o | n n u l l   _iNnotn nvu1l,l 
i      n| t                     ^ 
v2, const char* absl_nonnull exprteIn file included from xs2geography/distance.cct:)2 :
{In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 32 :
 In file included from  ../src/s2/base/logging.h :\21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                  ^:
37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22In file included from :/usr/local/clang/include/absl/log/internal/check_op.h :41note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26  :
241 | /usr/local/clang/include/absl/log/internal/log_message.h#:d191e:f43i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n191o | n n uLlolg M_eNsosnanguel&l 
o      p| e                     ^r
ator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   frieIn file included from ns2geography/geography.ccd: 2v:
oIn file included from is2geography/geography.hd: 4A:
bIn file included from s../src/s2/s2polygon.hl:F32o:
rIn file included from m../src/s2/base/logging.ha:t21F:
lIn file included from u/usr/local/clang/include/absl/log/check.hs:h37(:
SIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hr:i21n:
gi/usr/local/clang/include/absl/log/internal/check_op.hf:y507S:i1n:k *warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _507n | oAnBnSuLl_lL OsGi_nIkN,T
E      R| N                                             ^A
L_C/usr/local/clang/include/absl/base/nullability.hH:E241C:K22_:O Pnote: _expanded from macro 'absl_nonnull'I
MP  L241( | C#hdefineec ka_bGsTl,_ n>o)n
n      u| l^l
 _N/usr/local/clang/include/absl/log/internal/check_op.ho:n488n:u32l:l 
      note: | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'                     ^

  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) In file included from {s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 32\:

In file included from       ../src/s2/base/logging.h| :                                  ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:41:
  In file included from 241/usr/local/clang/include/absl/log/internal/strip.h | :#26d:
e/usr/local/clang/include/absl/log/internal/log_message.hf:i398n:e11 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_no  n398n | u l l   _vNooindn*u lalb
s      l| _                     ^n
ullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2geography/geography.cce: 2a:
bIn file included from ss2geography/geography.hl:_4n:
oIn file included from n../src/s2/s2polygon.hn:u32l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
In file included from s2geography/distance.cc/usr/local/clang/include/absl/base/nullability.h::2257:
:In file included from 23s2geography/distance.h:: 4:
note: In file included from expanded from macro 'absl_nullable's2geography/geography.h
:4:
  In file included from 257../src/s2/s2polygon.h | :#32d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hl:e41 :
_In file included from N/usr/local/clang/include/absl/log/internal/strip.hu:l26l:
a/usr/local/clang/include/absl/log/internal/log_message.hb:l454e:
38      :|                        ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454In file included from  | s2geography/geography.cc : 2L:
oIn file included from gs2geography/geography.hM:e4s:
sIn file included from a../src/s2/s2polygon.hg:e32Q:
uIn file included from i../src/s2/base/logging.he:t21l:
yIn file included from F/usr/local/clang/include/absl/log/check.ha:t37a:
lIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 512c:h17a:r *warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _512n | o n n u lclo nfsitl ec,h
a      r| *                                     ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   s2411 | ,# dceofnisnte  cahbasrl*_ naobnsnlu_lnlu l_lNaobnlneu lsl2
,      
|                            ^| 
                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2geography/distance.ccn:u2l:
lIn file included from as2geography/distance.hb:l4e:
 In file included from _s2geography/geography.hN:u4l:
lIn file included from a../src/s2/s2polygon.hb:l32e:

In file included from       ../src/s2/base/logging.h| :                      ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hIn file included from :s2geography/geography.cc41::
2In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :s2geography/geography.h26::
4:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :../src/s2/s2polygon.h456::3238:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 456/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
L/usr/local/clang/include/absl/log/internal/check_op.ho:g512M:e47s:s awarning: gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
Qui  e512t | l y F a tcaoln(scto ncshta rc*h aarb*s la_bnsull_lnaobnlneu lsl1 ,f icloen,s ti ncth alri*n ea,b
s      l| _                                     ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  snote: 2expanded from macro 'absl_nonnull',

        | 241                                              ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f257i:n23e:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli n_eN oanbnsull_ln
u      l| l                     ^a
ble _NulIn file included from ls2geography/distance.cca:b2l:
eIn file included from 
s2geography/distance.h      :| 4                      ^:

In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:In file included from 32s2geography/geography.cc:
:In file included from 2../src/s2/base/logging.h:
:In file included from 21s2geography/geography.h:
:In file included from 4/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2polygon.h:
:In file included from 32/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26/usr/local/clang/include/absl/log/internal/check_impl.h:
:/usr/local/clang/include/absl/log/internal/log_message.h21::
457/usr/local/clang/include/absl/log/internal/check_op.h::38513:: 17:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
    457513 |  |          c o n s t   c h a r *   a b s l _ n o n ncuolnls te xcphratre*x ta)b;s
l      _| n                ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22f:a inote: lexpanded from macro 'absl_nonnull'u
re  _241m | s#gd)e
f      i| n                                     ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _NonnulIn file included from ls2geography/geography.cc
:      2| :
                     ^In file included from 
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* abIn file included from ss2geography/distance.ccl:_2n:
oIn file included from ns2geography/distance.hn:u4l:
lIn file included from  s2geography/geography.he:x4p:
rIn file included from t../src/s2/s2polygon.he:x32t:
)In file included from ;../src/s2/base/logging.h
:      21| :
                ^In file included from 
/usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h::2221::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'180
:42:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e180  | aAbBsSlL__nAoTnTnRuIlBlU T_EN_oPnUnRuEl_lF
U      N| C                     ^T
ION const chaIn file included from rs2geography/geography.cc*: 2a:
bIn file included from ss2geography/geography.hl:_4n:
oIn file included from n../src/s2/s2polygon.hn:u32l:
lIn file included from  ../src/s2/base/logging.hM:a21k:
eIn file included from C/usr/local/clang/include/absl/log/check.hh:37:
In file included from e/usr/local/clang/include/absl/log/internal/check_impl.hc:k21F:
a/usr/local/clang/include/absl/log/internal/check_op.hi:l517S:t13r:i nwarning: gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](

        | 517                                         ^ | 
con/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea bCshle_cnkosntnruclals e_cNmopntnruulelI
m      p| l(
                     ^      
|             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2geography/distance.cc:2  :
257In file included from  | s2geography/distance.h#:d4e:
fIn file included from is2geography/geography.hn:e4 :
aIn file included from b../src/s2/s2polygon.hs:l32_:
nIn file included from u../src/s2/base/logging.hl:l21a:
bIn file included from l/usr/local/clang/include/absl/log/check.he: 37_:
NIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e181
:      25| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2geography/geography.cc:2  :
181In file included from  | s2geography/geography.h : 4 :
 In file included from c../src/s2/s2polygon.ho:n32s:
tIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from :/usr/local/clang/include/absl/log/check.h::S37t:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hu:s21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b518s:l17_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull   518s | t a t u sc,o ncsotn scth acrh*a ra*b salb_snlu_lnloanbnluel ls 1p,r ecfoinxs)t; 
c      h| a                        ^r
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #sd2e,f
i      n| e                ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
e       | a                     ^b
sl_nullableIn file included from  s2geography/distance.cc_:N2u:
lIn file included from ls2geography/distance.ha:b4l:
eIn file included from 
s2geography/geography.h      :| 4                      ^:

In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:In file included from 21s2geography/geography.cc:
:In file included from 2/usr/local/clang/include/absl/log/check.h:
:In file included from 37s2geography/geography.h:
:In file included from 4/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2polygon.h:
:/usr/local/clang/include/absl/log/internal/check_op.h32::
181In file included from :../src/s2/base/logging.h58::21 :
In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21181:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 518 : 47c:o nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
 ab  s518l | : : S t actounss*t  acbhsalr_*n oanbnsull_ln usltlaatbulse,  sc1o,n scto ncshta rc*h aarb*s la_bnsoln_nnuullll apbrleef isx2),;

            | |                                               ^                                                         ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h257::24123::22 : note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaubllle  __NNounlnlualbll
e      
|                            ^| 
                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2geography/distance.cc::5192::
17In file included from :s2geography/distance.h :4warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2geography/geography.h:4  :
519In file included from  | ../src/s2/s2polygon.h : 32 :
 In file included from c../src/s2/base/logging.ho:n21s:
tIn file included from  /usr/local/clang/include/absl/log/check.hc:h37a:
rIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_189n:o28n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
expr  t189e | xitn)l;i
n      e|                  ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :a22b:s lnote: :expanded from macro 'absl_nonnull':
St  a241t | u#sd*e faibnsel _anbosnln_unloln nAuslSlt a_tNuosn(ncuolnls
t       | a                     ^b
sl::Status& s)In file included from  s2geography/geography.cc{:
2      :
| In file included from                            ^s2geography/geography.h
:4:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2polygon.h241::3222:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e520 :a13b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u520l | lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  In file included from 257s2geography/distance.cc | :#2d:
eIn file included from fs2geography/distance.hi:n4e:
 In file included from as2geography/geography.hb:s4l:
_In file included from n../src/s2/s2polygon.hu:l32l:
aIn file included from b../src/s2/base/logging.hl:e21 :
_In file included from N/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h                      ^:
193:21: In file included from s2geography/geography.ccwarning: :2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from s2geography/geography.h:4:
  In file included from 193../src/s2/s2polygon.h | :c32o:
nIn file included from s../src/s2/base/logging.ht: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl::37::
SIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.ha:t21u:
s/usr/local/clang/include/absl/log/internal/check_op.h*: 521a:b17s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l521l |   A s S tcaotnusst( ccohnasrt*  aabbssll:_:nSutlaltaubslOer <sT1>,&  cso)n s{t
       c| h                    ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dse2f,i
n      e|                  ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 _  N257o | n#nduelfli
n      e|                       ^a
bsl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from 37s2geography/distance.cc:
:In file included from 2/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21s2geography/distance.h:
:/usr/local/clang/include/absl/log/internal/check_op.h4::
521In file included from :s2geography/geography.h47::4 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2polygon.h
:32:
In file included from   ../src/s2/base/logging.h521: | 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht: 21c:
h/usr/local/clang/include/absl/log/internal/check_op.ha:r202*: 46a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a202b | l e  esx1p,l iccoints tC hcehcakrO*p Maebsssla_gneuBlulialbdleer (sc2o,n
s      t|                                                ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld eefxipnret eaxbstl)_;n
u      l| l                                             ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241_:N22u:l lnote: aexpanded from macro 'absl_nonnull'b
le  
241       | | #                      ^d
efine aIn file included from bs2geography/geography.ccs:l2_:
nIn file included from os2geography/geography.hn:n4u:
lIn file included from l../src/s2/s2polygon.h :_32N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);In file included from 
s2geography/distance.cc      :| 2                ^:

In file included from s2geography/distance.h:/usr/local/clang/include/absl/base/nullability.h4::
241In file included from :s2geography/geography.h22::4 :
In file included from note: ../src/s2/s2polygon.hexpanded from macro 'absl_nonnull':
32:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n209o:n15n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_No  n209n | u l lc
o      n| s                     ^t
 char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.hIn file included from :s2geography/coverings.cc32::
2In file included from :
../src/s2/base/logging.hIn file included from :s2geography/coverings.h21::
6In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :s2geography/geography.h37::
4In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2polygon.h21::
29/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 323/usr/local/clang/include/absl/container/flat_hash_map.h::4645::
 warning: /usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
143:59:   warning: 323passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
  frie  n143d |   v o i d   A b s l F o r m a t F l ufsahl(sSet,r ifnaglisfey,S iAnBkS*L _aIbNsTlE_RnNoAnLn_uSlIlN GsLiEn_kA,R
G      (| )                                             ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :                                                          ^241
:22: /usr/local/clang/include/absl/container/internal/raw_hash_map.h:note: 120expanded from macro 'absl_nonnull':
9:   note: 241macro 'ABSL_INTERNAL_X' defined here | 
#de  f120i | n#ed eafbisnle_ nAoBnSnLu_lIlN T_ENRoNnAnLu_lXl(
F      u| n                     ^c
, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2geography/geography.cc::1332::
52In file included from :s2geography/geography.h :4note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2polygon.h:32:
In file included from   ../src/s2/base/logging.h133: | 22 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20A:
BIn file included from S/usr/local/clang/include/absl/log/absl_vlog_is_on.hL:_63I:
NT/usr/local/clang/include/absl/log/internal/vlog_config.hE:R49N:A37L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIB   U49T | Ei_nCtA PRTeUgRiEsDt_eBrYA(ntdhIinsi)t)i,a l i z e ( V L o g S i t e *   a b s l _ n o n n u l\l
       v| )                                                   ^;

      |                                     ^
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/base/nullability.h::32241::922::  note: note: macro 'ABSL_INTERNAL_IF_false' defined hereexpanded from macro 'absl_nonnull'

     32241 |  | ##ddeeffiinnee  AaBbSsLl__InNoTnEnRuNlAlL __INFo_nfnaullsle
(      i| f                     ^_
satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from In file included from s2geography/geography.hs2geography/coverings.cc::42:
:
In file included from In file included from ../src/s2/s2polygon.hs2geography/coverings.h::326:
:
In file included from In file included from ../src/s2/base/logging.hs2geography/geography.h::224:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h../src/s2/s2polygon.h::20929:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/container/flat_hash_map.h::2045:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h::14263::
In file included from 3/usr/local/clang/include/absl/log/internal/vlog_config.hs2geography/distance.cc::: 632:warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]43In file included from 
:s2geography/distance.h :4  warning: :
142type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from  | 
 s2geography/geography.h :A   4B63:
S | In file included from  L../src/s2/s2polygon.h _:Ie32Nx:
TpEIn file included from lR../src/s2/base/logging.hiN:cA21iL:
t_In file included from  X/usr/local/clang/include/absl/log/check.hc(:oi37nn:
ssIn file included from te/usr/local/clang/include/absl/log/internal/check_impl.her:xt21_p:
o/usr/local/clang/include/absl/log/internal/check_op.hrr: _428Va:Ls44os:gi Sgwarning: intype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t,
 ei(n  sce428or | nAts_BtSo Lrc__hAaaTrsTs*Ri gIanBbU_siTlmE_p_nRloEn,TnU ucRloNlnS _sfNt)O
&N      ,N|  Uc                                          ^Lo
Ln /usr/local/clang/include/absl/base/nullability.hcs:ot241n&:s,22t
:        c| note: hexpanded from macro 'absl_nonnull'a  ^
r
*   241/usr/local/clang/include/absl/container/internal/raw_hash_map.ha | b:#sd135le_f:ni16onn:en  ualbnote: ls expanded from macro 'ABSL_INTERNAL_X'lM_
ankoenC  nhu135el | clk   O _pN Sot n r ni u nl gl(t

h      i      | s|                      ^)                                           ^
)
) A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22A:T Tnote: Rexpanded from macro 'absl_nonnull'I
BU  T241E | _#LdIeFfEiTnIeM Ea_bBsOlU_NnDo n{n u l l   _ N o n n u l l 
        |                       ^ 
 In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.hIn file included from  :s2geography/distance.cc 4: :
2 In file included from :
 ../src/s2/s2polygon.hIn file included from  :\s2geography/distance.h32
::
      4In file included from | :
../src/s2/base/logging.h               ^In file included from :
s2geography/geography.h22::
4/usr/local/clang/include/absl/container/internal/common.hIn file included from :
:/usr/local/clang/include/absl/log/log.hIn file included from 32:../src/s2/s2polygon.h:209:9:
32:In file included from :
 /usr/local/clang/include/absl/log/internal/log_impl.hnote: In file included from macro 'ABSL_INTERNAL_IF_false' defined here:../src/s2/base/logging.h
20::
21In file included from    :
/usr/local/clang/include/absl/log/absl_vlog_is_on.h32In file included from : | /usr/local/clang/include/absl/log/check.h#63:d:
37e/usr/local/clang/include/absl/log/internal/vlog_config.h:
f:In file included from i96/usr/local/clang/include/absl/log/internal/check_impl.hn::e60 21:A:
 /usr/local/clang/include/absl/log/internal/check_op.hBwarning: :Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]429L
_:I31N:   T 96E | Rwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N 
fArLi_  eI429nF | _df  ia nl ts  Tel1o( gvi_f1i_,n stTaet2r invas2lf,:i :ecdRo,engsits t c.eh.raA.r)n* d I_an_biVsAtl_i_aAnlRoinGzSn_eu_(lV
lL       o| eg        ^xSp
irttee*x ta)b sAlB_SnLo_nAnTuTlRlI BvU)T;E
_      N| O                                                           ^I
NLI/usr/local/clang/include/absl/base/nullability.hN:E241;:
22      :|                                ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:  241241: | 22#:dIn file included from  es2geography/coverings.ccnote: fexpanded from macro 'absl_nonnull':i
2n:
  eIn file included from 241 s2geography/coverings.h | a:#bd6se:
lfIn file included from _ins2geography/geography.hnoe:n n4au:
blIn file included from sl../src/s2/s2polygon.hl _:_nN29oonnn:
nuuIn file included from llll/usr/local/clang/include/absl/container/flat_hash_map.h 
_:      N45| o                     ^:
n
/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:u145l:l58
:       | warning:                      ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  145 |                   false, tIn file included from rs2geography/distance.ccu:e2,:
 In file included from As2geography/distance.hB:S4L:
_In file included from Is2geography/geography.hN:T4E:
RIn file included from N../src/s2/s2polygon.hA:L32_:
SIn file included from I../src/s2/base/logging.hN:G21L:
EIn file included from _/usr/local/clang/include/absl/log/check.hA:R37G:
(In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h):;21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                                                         ^432
:13:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :warning: 120type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
9:   note: 432macro 'ABSL_INTERNAL_X' defined here | 
con  s120t |  #cdheafri*n ea bAsBlIn file included from S_s2geography/geography.ccnL:o_2nI:
nNIn file included from TuEs2geography/geography.hRlN:lA4 L:
M_In file included from aX../src/s2/s2polygon.h(k:eF32Cu:
nhIn file included from ce../src/s2/base/logging.hc,:k 22OC:
paIn file included from Sl/usr/local/clang/include/absl/log/log.hlt:ere209i,:
n In file included from Kg/usr/local/clang/include/absl/log/internal/log_impl.h(Q:uT201a:
 lIn file included from v,/usr/local/clang/include/absl/log/absl_vlog_is_on.h 1V:,Q63 u:
Ta/usr/local/clang/include/absl/log/internal/vlog_config.h2l: ,v119 2K:,V15
a:      l u| warning:             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

,/usr/local/clang/include/absl/base/nullability.h   :V119241V | a: l22 u:ce o,note:  nexpanded from macro 'absl_nonnull'Ts
ati   l241c, | h #a.d.re.*f )ian bes\ 
la      _bns| o        ^ln
_nnuolnln ucloln s_tN ofninluel_l;

            | |                      ^              ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2geography/distance.cc
:2:
  In file included from 241s2geography/distance.h | :#4d:
eIn file included from fs2geography/geography.hi:n4e:
 In file included from a../src/s2/s2polygon.hb:s32l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
433      :| 56                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext)/usr/local/clang/include/absl/container/internal/raw_hash_map.h :{144
:      3| :                                                       ^ 
warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
241:22:   note: 144expanded from macro 'absl_nonnull' | 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lX_(nionnsneurltl_ o_rN_oansnsuilgln
,       | i                     ^n
sert_or_assign_impl,In file included from  s2geography/linear-referencing.ccc:o2n:
sIn file included from ts2geography/linear-referencing.h&:,4 :
cIn file included from os2geography/geography.hn:s4t:
&In file included from ,../src/s2/s2polygon.h
:      29| :
  ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 133/usr/local/clang/include/absl/container/hash_container_defaults.h::5219::
 In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.hnote: :expanded from macro 'ABSL_INTERNAL_X'59
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82  :
133In file included from  | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 In file included from  /usr/local/clang/include/absl/strings/str_format.hA:B84S:
LIn file included from _/usr/local/clang/include/absl/strings/internal/str_format/bind.hI:N24T:
EIn file included from R/usr/local/clang/include/absl/container/inlined_vector.hN:A56L:
_In file included from A/usr/local/clang/include/absl/container/internal/inlined_vector.hT:T35R:
IB/usr/local/clang/include/absl/types/span.hU:T212E:_22C:A Pwarning: Ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]U
RED_  B212Y | ( t huissi)n)g,  p o In file included from i s2geography/distance.ccn :t 2e :
r In file included from   s2geography/distance.h= :  4T :
* In file included from   s2geography/geography.ha :b 4 s :
l In file included from _ ../src/s2/s2polygon.hn : u32 l:
l In file included from a ../src/s2/base/logging.h b:i\21l
:
i      In file included from t| /usr/local/clang/include/absl/log/check.hy                                                   ^:_
37u:
/usr/local/clang/include/absl/container/internal/common.hnIn file included from k:/usr/local/clang/include/absl/log/internal/check_impl.hn32:o:21w9:
n:/usr/local/clang/include/absl/log/internal/check_op.h; :
note: 451      macro 'ABSL_INTERNAL_IF_false' defined here:| 
1                     ^:
    warning: 32/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | :
#289d:  e34451f:i |  Annote: Beexpanded from macro 'absl_nullability_unknown'S 
LA_B  SL289OL | G#__dIeINfTiENnRTeEN RAaLNb_AsDlLE__FIIFN_Enf_uMalAllKasEbe_iC(liHiEft_CsyaK__tuOniPks_nSfoTwRinI eNd_GN,_uE lXl.T._Eu.RnN)s (pb_e_ocVoAilf_)i;Ae
RdG
S            _| | ^_                                 ^


      /usr/local/clang/include/absl/log/internal/check_op.h| :        ^449
:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449In file included from  | s2geography/linear-referencing.cc In file included from : s2geography/coverings.cc2e::
x2In file included from t:
s2geography/linear-referencing.heIn file included from :rs2geography/coverings.h4n::
 6In file included from t:
s2geography/geography.heIn file included from :ms2geography/geography.h4p::
l4In file included from a:
../src/s2/s2polygon.htIn file included from :e../src/s2/s2polygon.h29 ::
c29In file included from o:
/usr/local/clang/include/absl/container/flat_hash_map.hnIn file included from :s/usr/local/clang/include/absl/container/flat_hash_map.h43t::
 45In file included from c:
/usr/local/clang/include/absl/container/hash_container_defaults.hh/usr/local/clang/include/absl/container/internal/raw_hash_map.h:a:19r144:
*:In file included from  3/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha::b 59swarning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]lIn file included from _
/usr/local/clang/include/absl/strings/cord.hn:o82n  :
n144In file included from u | /usr/local/clang/include/absl/crc/internal/crc_cord_state.hl :l 23 A:
MBIn file included from aS/usr/local/clang/include/absl/crc/crc32c.hkL:e_CI32hN:
eTIn file included from Ec/usr/local/clang/include/absl/strings/str_format.hRk:ON84pA:
SLIn file included from t_/usr/local/clang/include/absl/strings/internal/str_format/bind.hrX:i(24ni:
gn(In file included from s /usr/local/clang/include/absl/container/inlined_vector.he : r56\t:

_In file included from       o/usr/local/clang/include/absl/container/internal/inlined_vector.h| r:                              ^_35
a:
s/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/types/span.hs::i241213g::n2234,::   inote: nwarning: expanded from macro 'absl_nonnull'stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
e
  r241t |   #_213do | e rf _iuansesi nsagbi scglo_nnn_sotin_nmpuoplilln t,_eN rcoo n=nn sucltol&n
s,      t |                       ^cT
*o nasbtsIn file included from &ls2geography/distance.cc_,:n
2u      l:
l| In file included from a  ^s2geography/distance.hb
:i4/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:
i:In file included from s2geography/geography.ht135:y:4_16:
u:In file included from n ../src/s2/s2polygon.hknote: :nexpanded from macro 'ABSL_INTERNAL_X'32o
:
wIn file included from n../src/s2/base/logging.h;  :
13521       | :
|  In file included from                                  ^ /usr/local/clang/include/absl/log/check.h
 : /usr/local/clang/include/absl/base/nullability.h37 ::
 289In file included from  :/usr/local/clang/include/absl/log/internal/check_impl.h 34: :21  :
tnote: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nullability_unknown'h:
i451s:  )1289): | ) # warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ae
fBi/usr/local/clang/include/absl/log/internal/check_op.hSnLe: _450aA:bT25Ts:Rl Inote: _Bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'nU
uTl  El_450aL | Ib Fi l i Et yT _xIu,nM kxEn,_o wBcnOoU n_NsDNt u l{clh _ aur n * s  pa e bcs il f _in eod n
n       u l | l                                 ^ ) 

        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                ^  
241 | /usr/local/clang/include/absl/container/internal/common.h#:d31e:f9i:n enote:  macro 'ABSL_INTERNAL_IF_true' defined herea
bsl   _31n | o#ndneufliln e_ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_IF_true(if_satisfied, ...) In file included from is2geography/distance.ccf:_2s:
aIn file included from ts2geography/distance.hi:s4f:
iIn file included from es2geography/geography.hd:
4      :
| In file included from         ^../src/s2/s2polygon.h
:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2geography/coverings.cc  :4522 | :
AIn file included from Bs2geography/coverings.hS:L6_:
LIn file included from Os2geography/geography.hG:_4I:
NIn file included from T../src/s2/s2polygon.hE:R29N:
AIn file included from L/usr/local/clang/include/absl/container/flat_hash_map.h_:D45E:
F/usr/local/clang/include/absl/container/internal/raw_hash_map.hI:N144E:_3M:A Kwarning: E'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
CHECK_  O144P | _ S TARBISNLG__IENXTTEERRNNA(Li_nXt(6i4n_ste)r;t
_      o| r^_
as/usr/local/clang/include/absl/log/internal/check_op.hs:i449g:n31,:  inote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
ert  _449o | r _ aesxstiegrnn_ itmepmlp,l actoen scto&n,s tc ocnhsatr&*, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no  n145n | u l l   M a k e C h e c k O p S t r ifnagl(s e ,  \t
r      u| e                              ^,
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | S#IdNeGfLiEn_eA RaGb(s)l)_;n
o      n| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll _/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:o135n:n11u:l lnote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                      ^
  135 |           tIn file included from hs2geography/distance.cci:s2):
)In file included from )s2geography/distance.h :A4B:
SIn file included from Ls2geography/geography.h_:A4T:
TIn file included from R../src/s2/s2polygon.hI:B32U:
TIn file included from E../src/s2/base/logging.h_:L21I:
FIn file included from E/usr/local/clang/include/absl/log/check.hT:I37M:
EIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hB:O21U:
N/usr/local/clang/include/absl/log/internal/check_op.hD: 452{: 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 450 : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |              x ,  \xIn file included from 
,s2geography/geography.cc       :c| 2          ^~~~o:
n
In file included from ss2geography/geography.ht: 4c:
hIn file included from a../src/s2/s2polygon.hr:*32 :
aIn file included from b../src/s2/base/logging.hs:l22_:
nIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h):
20      :
| In file included from                         ^/usr/local/clang/include/absl/log/absl_vlog_is_on.h
:63:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/vlog_config.h241::13322::37 : note: warning: expanded from macro 'absl_nonnull'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d133e | fiinnte  Raebgsils_tneornAnnudlIln i_tNioanlniuzlel(
V      L| o                     ^g
Site* absl_nonnull v);
      |                                     ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/distance.cc::2412::
22In file included from :s2geography/distance.h :4note: :
expanded from macro 'absl_nonnull'In file included from 
s2geography/geography.h:4  :
241In file included from  | ../src/s2/s2polygon.h#:d32e:
fIn file included from i../src/s2/base/logging.hn:e21 :
/usr/local/clang/include/absl/container/internal/raw_hash_map.haIn file included from :b/usr/local/clang/include/absl/log/check.h147s:l:37_52:
n:In file included from o /usr/local/clang/include/absl/log/internal/check_impl.hn:nwarning: 21upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
l
/usr/local/clang/include/absl/log/internal/check_op.hl: 453  _:N1471o | :n  n warning: u type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
l 
          | 453                     ^  | 
A B S L _ L O G _ I NfTaElRsNeA,L _ADBESFLI_NIEN_TMEARKNEA_LC_HSEICNKG_LOEP__ASRTGR(I)N)G;_
E      X| In file included from T                                                   ^s2geography/geography.ccE
:R2/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:
:(In file included from u120s2geography/geography.hi::n94t::
6 In file included from 4../src/s2/s2polygon.h_note: :macro 'ABSL_INTERNAL_X' defined heret32)
:
;In file included from 
../src/s2/base/logging.h        :120| 22 | ^:
#
In file included from d/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/log/internal/check_op.he::f209449i:
:nIn file included from 31e/usr/local/clang/include/absl/log/internal/log_impl.h: : A20note: B:
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'SIn file included from 
L/usr/local/clang/include/absl/log/absl_vlog_is_on.h_:  I63449N:
 | T/usr/local/clang/include/absl/log/internal/vlog_config.h E:R 157eN:xA11tL:e_ Xwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]rF
unn c  t,157 e | CVamLlpollgaeSeti,et  Kec*Qou naasblts, l c_hVnQaurul*al aalbb,lse l _KSneVotnaVlnMuuoldelu ,lM eaLVkieVsaCtlhuHeee,c akTdOaFpoiSlrtT,re is.nt.gO(.n) l  y \(\


                  | | |           ^        ^                              ^


/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h257::24123::22 : note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaubllle  __NNounlnlualbll
e      
|                            ^| 
                      ^
In file included from In file included from s2geography/geography.ccs2geography/distance.cc::22:
:
In file included from In file included from s2geography/geography.hs2geography/distance.h::44:
:
In file included from In file included from ../src/s2/s2polygon.hs2geography/geography.h::324:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2polygon.h::2232:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h../src/s2/base/logging.h::20921:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/log/check.h::2037:
:
In file included from In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/log/internal/check_impl.h::6321:
:
/usr/local/clang/include/absl/log/internal/vlog_config.h/usr/local/clang/include/absl/log/internal/check_op.h::158453::151::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h  :158450 | : 25 :   note: Vexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'L
og  S450i | t e */usr/local/clang/include/absl/container/internal/raw_hash_map.h  : a 146b s:xl3,_: n xuwarning: ,l passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]lc
aobnlse  t  146vc)h; | a
r       * |                ^Aa
bB/usr/local/clang/include/absl/base/nullability.hSs:Ll257__:nI23oN:nT nEnote: Rexpanded from macro 'absl_nullable'uN
lA  lL257)_ | X
#(      di| e                        ^nf
isn/usr/local/clang/include/absl/base/nullability.hee: r241at:b_22so:lr __note: nexpanded from macro 'absl_nonnull'au
sl  sl241ai | bg#ldnee,  f_iiNnnuesl elaarbbtsl_leo_
nr      o_| n                      ^
ansuslilg n__Niomnpnlu,l lc
o      n| s                     ^t
&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133In file included from :s2geography/distance.cc52::2 :
In file included from note: s2geography/distance.hexpanded from macro 'ABSL_INTERNAL_X':
4:
In file included from s2geography/geography.h:  4133:
 | In file included from  ../src/s2/s2polygon.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
In file included from  /usr/local/clang/include/absl/log/check.hA:B37S:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hI:N21T:
E/usr/local/clang/include/absl/log/internal/check_op.hR:N454A:L1_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBUT  E454_ | CAABPSTLU_RLEODG__BIYN(TtEhRiNsA)L)_,D E F I N E _ M A K E _ C H E C K _ O P _ S T R I N G\_
E      X| T                                                   ^E
RN/usr/local/clang/include/absl/container/internal/common.h(:f31l:o9a:t )note: ;macro 'ABSL_INTERNAL_IF_true' defined here

      | ^   
31 | /usr/local/clang/include/absl/log/internal/check_op.h#:d449e:f31i:n enote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'A
BSL  _449I | N T EeRxNtAeLr_nI Ft_etmrpulea(tief _csoantsits fciheadr,*  .a.b.s)l _info_nsnautlils fMiaekde
C      h| e        ^c
kOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2geography/coverings.cc22::2 :
note: In file included from expanded from macro 'absl_nonnull's2geography/coverings.h
:6  :
241In file included from  | s2geography/geography.h#:d4e:
fIn file included from i../src/s2/s2polygon.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l45_:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n146n:u3l:l  warning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
onnull  
146       | |                       ^ 
ABSL_INTERIn file included from Ns2geography/distance.ccA:L2_:
XIn file included from (s2geography/distance.hi:n4s:
eIn file included from rs2geography/geography.ht:_4o:
rIn file included from _../src/s2/s2polygon.ha:s32s:
iIn file included from g../src/s2/base/logging.hn:,21 :
iIn file included from n/usr/local/clang/include/absl/log/check.hs:e37r:
tIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.ho:r21_:
a/usr/local/clang/include/absl/log/internal/check_op.hs:s454i:g1n:_ iwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
l/usr/local/clang/include/absl/log/internal/check_op.h,: 450c:o25n:s tnote: &expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN',
 c  o450n | s t & ,   t rxu,e ,x
,       | c  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
ns  t147  | c h a r *   a b s l _ n o n n u l l )f
a      l| s                        ^e
, /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#SdIeNfGiLnEe_ AaRbGs(l)_)n;o
n      n| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l _/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:o133n:n47u:l lnote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                      ^
  133 |           ABSL_INTERNIn file included from As2geography/distance.ccL:_2A:
TIn file included from Ts2geography/distance.hR:I4B:
UIn file included from Ts2geography/geography.hE:_4C:
AIn file included from P../src/s2/s2polygon.hT:U32R:
EIn file included from D../src/s2/base/logging.h_:B21Y:
(In file included from t/usr/local/clang/include/absl/log/check.hh:i37s:
)In file included from )/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from ,:s2geography/linear-referencing.cc 21: :
2 /usr/local/clang/include/absl/log/internal/check_op.h:
 :In file included from  455s2geography/linear-referencing.h :: 14 : :
  In file included from warning:  s2geography/geography.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] : 
 4 :
    In file included from 455 ../src/s2/s2polygon.h  | : A29B :
S In file included from L /usr/local/clang/include/absl/container/flat_hash_map.h_ :L 43O :
G\In file included from _
/usr/local/clang/include/absl/container/hash_container_defaults.hI      :N| 19                                              ^~~~T:

EIn file included from R/usr/local/clang/include/absl/container/internal/hash_function_defaults.hN:A59L:
_In file included from D/usr/local/clang/include/absl/strings/cord.hE/usr/local/clang/include/absl/container/internal/raw_hash_map.h:F:82I146:
N:In file included from E3/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_::M 23Awarning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]KIn file included from E
/usr/local/clang/include/absl/crc/crc32c.h_:/usr/local/clang/include/absl/container/internal/raw_hash_map.hC32H::
E135In file included from C:/usr/local/clang/include/absl/strings/str_format.hK16:_:84O :
PIn file included from _note: /usr/local/clang/include/absl/strings/internal/str_format/bind.hSexpanded from macro 'ABSL_INTERNAL_X':T
24R:
IIn file included from N  /usr/local/clang/include/absl/container/inlined_vector.hG135:_ | 56E :
X In file included from  T/usr/local/clang/include/absl/container/internal/inlined_vector.hE : R35 N:
( d/usr/local/clang/include/absl/types/span.ho :uIn file included from  733bs2geography/geography.ccl ::et312)h::
;i In file included from 
ss2geography/geography.hwarning:       ):type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| )4
^):

 In file included from /usr/local/clang/include/absl/log/internal/check_op.h  A../src/s2/s2polygon.h:733B:449 | S34L:c:
o_31AIn file included from n:sT../src/s2/mutable_s2shape_index.h tT:note: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'R30x
pI:
BrUIn file included from    T/usr/local/clang/include/absl/container/btree_map.h449SE: | p a_66L ne:
xI<In file included from tFT/usr/local/clang/include/absl/container/internal/btree.h>e E:TrMn70 IaM:
tkeEIn file included from _emS/usr/local/clang/include/absl/container/internal/layout.hpBp:aOl198antU:
(eTNIn file included from D */usr/local/clang/include/absl/strings/str_cat.h  c:oan{116bss :
tl  In file included from _cn /usr/local/clang/include/absl/strings/internal/stringify_sink.hhua :lrl 23*a  :
ba /usr/local/clang/include/absl/strings/numbers.hlbe : s 66p l:t _ 41rn o :An  Bn warning: SuLl_l type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A T 
MT a R   k I 66 eBC | h  UeT E c _  kL I O F  pE T S tI   rMi n\E _ B O UgN(
 D        , 
   |                        ^| \
 
                              ^       |  /usr/local/clang/include/absl/container/internal/common.h                              ^ :

 32/usr/local/clang/include/absl/base/nullability.h ::/usr/local/clang/include/absl/base/nullability.h 9241: ::257  22:inote: :23nmacro 'ABSL_INTERNAL_IF_false' defined here :t
note:  _expanded from macro 'absl_nonnull'tnote: yexpanded from macro 'absl_nullable'   
p
e32  * |   241 #257 | ad | ##ddeebfefsili_fnnneieo nn anbusealll b_ AsnouBlu_tn)lSo;l
Lna      b_n| l                                        ^Iue
 Nl_lT/usr/local/clang/include/absl/base/nullability.hN E:u_lR241NlN:oanA22bnlL:uel_ 
note: lI      expanded from macro 'absl_nonnull'
F| 
                      ^      _
|                        ^f241a
l | s#ed(eIn file included from ifs2geography/distance.ccfi:n_2es:
 aIn file included from ats2geography/distance.hib:ss4lf:
_iIn file included from ens2geography/geography.hod:n,4n :
u.In file included from In file included from l.s2geography/linear-referencing.cc../src/s2/s2polygon.hl.:):  _232__:
:
NVIn file included from In file included from oAs2geography/linear-referencing.h../src/s2/base/logging.hn_::nA421uR:
:
lGIn file included from In file included from lSs2geography/geography.h/usr/local/clang/include/absl/log/check.h
_::      _437| 
:
:
                     ^      In file included from In file included from 
| ../src/s2/s2polygon.h        ^/usr/local/clang/include/absl/log/internal/check_impl.h:
:2921:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/flat_hash_map.h::45543::
1In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :19warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/log/internal/check_op.h59::
450In file included from :/usr/local/clang/include/absl/strings/cord.h25::82 :
In file included from note: /usr/local/clang/include/absl/crc/internal/crc_cord_state.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from :
s2geography/geography.cc23::
2  In file included from :
450/usr/local/clang/include/absl/crc/crc32c.hIn file included from  | :s2geography/geography.h 32: :
4 In file included from :
 /usr/local/clang/include/absl/strings/str_format.hIn file included from  :../src/s2/s2polygon.h 84:x:
34,In file included from :
 /usr/local/clang/include/absl/strings/internal/str_format/bind.hIn file included from x:../src/s2/mutable_s2shape_index.h,24: :
30cIn file included from :
o/usr/local/clang/include/absl/container/inlined_vector.hIn file included from n:/usr/local/clang/include/absl/container/btree_map.hs56:t:
66 In file included from :
c/usr/local/clang/include/absl/container/internal/inlined_vector.hIn file included from h:/usr/local/clang/include/absl/container/internal/btree.ha35:r:
70*:
/usr/local/clang/include/absl/types/span.h In file included from :a/usr/local/clang/include/absl/container/internal/layout.h739b::s19821l:
:_In file included from  n/usr/local/clang/include/absl/strings/str_cat.hwarning: o:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n116
n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl  :)73923
 | :
      S| /usr/local/clang/include/absl/strings/numbers.hp                        ^:a
77n:/usr/local/clang/include/absl/base/nullability.h<61:T:241> : 22warning: M:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a 
knote: eexpanded from macro 'absl_nonnull'S
p   a77  n | 241([ | T[#*nd oeadfbiissnlce_a nraudbl]slIn file included from ]l abbs2geography/coverings.cc_onlo:oeln 2 nbSe:
uilgIn file included from mlp l_eiAs2geography/coverings.hNnot: nAoBfS(6nLua:
_lAbTIn file included from ls
lTs2geography/geography.h      :R::| I                     ^s4B
UtT:
rEiIn file included from _nL../src/s2/s2polygon.hgI_:FvEiTe29IIn file included from w:
Ms2geography/distance.ccE In file included from :_sB/usr/local/clang/include/absl/container/flat_hash_map.h2tO::
rU45In file included from ,N :
s2geography/distance.hDf,l:o/usr/local/clang/include/absl/container/internal/raw_hash_map.h
4a:      :
t149| In file included from                     ^*:s2geography/geography.h
 51:a:/usr/local/clang/include/absl/base/nullability.h4b ::
swarning: 257In file included from lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:../src/s2/s2polygon.h_
23:n:32o :
  nIn file included from nnote: u149../src/s2/base/logging.hexpanded from macro 'absl_nullable'l |      :
l 21   o :
 257 u In file included from   |  t/usr/local/clang/include/absl/log/check.h# ):def37 i;:

 n In file included from       e /usr/local/clang/include/absl/log/internal/check_impl.h | t r:                                                            ^au21e
b:
s/usr/local/clang/include/absl/log/internal/check_op.h,/usr/local/clang/include/absl/base/nullability.hl:_ :A456n241uB::lS122lL::a_ I Nnote: bexpanded from macro 'absl_nonnull'lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
 
_E    NR241N456u | A | l#ldLAaBbel_SSfIeNLGiL
E__n      LAe|                        ^aObR
GsGl(__I)nN)oT;nEn
In file included from Ru      s2geography/linear-referencing.ccNl| :Al                                                  ^2L 
:
__DIn file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hNEoFnIs2geography/linear-referencing.hN:n:uEl1204_lM::

A9In file included from       K:s2geography/geography.h| E                     ^ :_
Cnote: 4Hmacro 'ABSL_INTERNAL_X' defined here:
E
In file included from C../src/s2/s2polygon.hK:  29_120:
O | In file included from P#/usr/local/clang/include/absl/container/flat_hash_map.h_d:SIn file included from e43Ts2geography/geography.ccf:
R:IiIn file included from 2Nn/usr/local/clang/include/absl/container/hash_container_defaults.h:
Ge:In file included from _ 19s2geography/geography.hEA:
:XBIn file included from 4TS/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:
E:R_In file included from 59NI../src/s2/s2polygon.h:
(N:In file included from cT34/usr/local/clang/include/absl/strings/cord.hhE:
:aRIn file included from 82rN../src/s2/mutable_s2shape_index.h:
)A:In file included from ;L30/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
_:
:      XIn file included from 23| (/usr/local/clang/include/absl/container/btree_map.h:
^F:In file included from 
u66/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/crc/crc32c.hn:
:449:31: :cIn file included from note: 32expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN',/usr/local/clang/include/absl/container/internal/btree.h:

 :In file included from   C70/usr/local/clang/include/absl/strings/str_format.h449a:
: | lIn file included from l84 /usr/local/clang/include/absl/container/internal/layout.he:
 :eeIn file included from 198x,/usr/local/clang/include/absl/strings/internal/str_format/bind.h :
t:eKIn file included from 24rQ/usr/local/clang/include/absl/strings/str_cat.hu:
n: aIn file included from 116tl/usr/local/clang/include/absl/container/inlined_vector.h,:
e:m In file included from 56pV/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
lQ:uIn file included from a23ta/usr/local/clang/include/absl/container/internal/inlined_vector.h:
el:/usr/local/clang/include/absl/strings/numbers.h ,35:c :
88oK/usr/local/clang/include/absl/types/span.h:nV:62sa740:tl:  u21warning: ce:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h, 
a warning: rVtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]   *V
88 a   | al740[bu | [se nlo, _dn  i o Tsn acn uia llr dl],  ]M   .a.kbeo o.C hle)   Sci  k Omp\Tp*S 
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         d241| o |                     ^u#
bdle/usr/local/clang/include/absl/base/nullability.hef:*i257 n:ae23b :sa lbnote: _sexpanded from macro 'absl_nullable'nl
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n/usr/local/clang/include/absl/base/nullability.h      u:| l241                     ^l:
a22b:l enote:  expanded from macro 'absl_nonnull'_
In file included from Ns2geography/distance.cc  u:241l2 | l:
#aIn file included from dbs2geography/distance.hel:fe4i
:
n      In file included from e| s2geography/geography.h                       ^:a
4b:
sIn file included from l../src/s2/s2polygon.h_:n32o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :/usr/local/clang/include/absl/container/internal/raw_hash_map.h                     ^456:
:1481::3 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25  :148  | note:  In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' s2geography/geography.ccA
:B2  S:
450LIn file included from _ | s2geography/geography.hI : N4T :
E In file included from  R../src/s2/s2polygon.hN A:Lx34_,:
 XIn file included from x(../src/s2/mutable_s2shape_index.hi,:n 30cs:
oeIn file included from nr/usr/local/clang/include/absl/container/btree_map.hts:_to66r _:
caIn file included from hs/usr/local/clang/include/absl/container/internal/btree.has:ri70*g:
 nIn file included from ,a/usr/local/clang/include/absl/container/internal/layout.hb :si198ln:
_sIn file included from en/usr/local/clang/include/absl/strings/str_cat.hor:tn116_n:
ouIn file included from lr/usr/local/clang/include/absl/strings/internal/stringify_sink.h_la:)s23
s:
      i/usr/local/clang/include/absl/strings/numbers.h| g:                        ^n98
_:i/usr/local/clang/include/absl/base/nullability.h60m::p241 l:warning: ,22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
c onote:    expanded from macro 'absl_nonnull'n98
s | t  [&241,[ | n #odcdeoinfsisctnae&r ,d aIn file included from ]tbs2geography/linear-referencing.ccs]r:l _u2bnoe:
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ls2geography/linear-referencing.h uS      :lil| 4m p  ^:
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In file included from eo/usr/local/clang/include/absl/container/internal/raw_hash_map.hs2geography/geography.hAntn::oubl1334(l::
a
b52In file included from       s:../src/s2/s2polygon.h| l                     ^ ::
:note: 29expanded from macro 'ABSL_INTERNAL_X's:
t
In file included from r/usr/local/clang/include/absl/container/flat_hash_map.hi:  n43g133:
_ | In file included from v /usr/local/clang/include/absl/container/hash_container_defaults.hi :e 19w :
  In file included from sIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hts2geography/distance.ccr ::, 592  :
:
b In file included from In file included from oA/usr/local/clang/include/absl/strings/cord.hs2geography/distance.hoB::lS824*L:
:
 _In file included from In file included from aI/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs2geography/geography.hbN::sT234lE:
:
_RIn file included from In file included from nN/usr/local/clang/include/absl/crc/crc32c.h../src/s2/s2polygon.hoA::nL3232n_:
uA:
In file included from lTIn file included from ../src/s2/base/logging.hlT/usr/local/clang/include/absl/strings/str_format.h: R:21oI84:
uB:
In file included from tUIn file included from /usr/local/clang/include/absl/log/check.h)T/usr/local/clang/include/absl/strings/internal/str_format/bind.h:;E:37
_24:
      C:
In file included from | AIn file included from /usr/local/clang/include/absl/log/internal/check_impl.h                                                           ^P/usr/local/clang/include/absl/container/inlined_vector.h:
T:/usr/local/clang/include/absl/base/nullability.h21U56::
R/usr/local/clang/include/absl/log/internal/check_op.h:
241E:In file included from :D457/usr/local/clang/include/absl/container/internal/inlined_vector.h22_:B::1Y35 :(:
note:  expanded from macro 'absl_nonnull't/usr/local/clang/include/absl/types/span.hhwarning: 
:itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]794  s
):241)8   | ,: 457# warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | dA 
eBf Si  n L 794e_   | LaO  b s G  l _T_* In o NaTbns E nlu_RnNu l A l l L l __D aNE bolnF e n I up NlEl_
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      rA       | KAE|                      ^B_S                                                   ^
CLH
_EAC/usr/local/clang/include/absl/container/internal/common.hTKT:R_I31OBP:U_T9SET:_RL Inote: IIn file included from Nmacro 'ABSL_INTERNAL_IF_true' defined hereFs2geography/geography.ccG
E:_T   2EIX31:
MTE | In file included from E_#s2geography/geography.hdRBNO(:ueU4nfN:
siDIn file included from in,../src/s2/s2polygon.h gse:nie 34zdeA:
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)       NIn file included from T| n^o/usr/local/clang/include/absl/container/btree_map.heE
:xR66/usr/local/clang/include/absl/log/internal/check_op.hcN:
:eAIn file included from 449pL/usr/local/clang/include/absl/container/internal/btree.h:t_:31 I70:{F:
 
_In file included from note:       expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't/usr/local/clang/include/absl/container/internal/layout.hr| 
       ^:u
198  e:
449/usr/local/clang/include/absl/base/nullability.h(In file included from  | : i/usr/local/clang/include/absl/strings/str_cat.h257 f::e_11623xs:
:taeIn file included from r nt/usr/local/clang/include/absl/strings/internal/stringify_sink.hnote:  expanded from macro 'absl_nullable'i:t
es23m  pf:
257li | e/usr/local/clang/include/absl/strings/numbers.ha#tdd:ee ,112 fcion:e.n44s t.:a . bc)warning:  shlatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ri_
*fn_   aus112abl | l tsalb li_ e sn o_n nfN u u illl ael  bMlad ek

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nIn file included from t/usr/local/clang/include/absl/base/nullability.hs2geography/coverings.cc_:t:241y2:p:
22eIn file included from :*s2geography/coverings.h  :note: a6expanded from macro 'absl_nonnull'b:

sIn file included from In file included from l  _s2geography/linear-referencing.ccs2geography/geography.h241n:: | o2n4#:
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_:4      n45o:
n| n:
In file included from                                            ^u/usr/local/clang/include/absl/container/internal/raw_hash_map.hl../src/s2/s2polygon.hl
 :/usr/local/clang/include/absl/base/nullability.h:_148N:o29n:241:
n3u:lIn file included from l:22/usr/local/clang/include/absl/container/flat_hash_map.h
 ::       warning: 43'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]| note: :

                     ^expanded from macro 'absl_nonnull'In file included from 

/usr/local/clang/include/absl/container/hash_container_defaults.h:19    148:
241In file included from  | In file included from  | s2geography/distance.cc# /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:d :2eA59:
fB:
In file included from iSIn file included from s2geography/distance.hnL/usr/local/clang/include/absl/strings/cord.h:e_:4 I82:
aN:
In file included from bTIn file included from s2geography/geography.hsE/usr/local/clang/include/absl/crc/internal/crc_cord_state.hR:l:_N4A23n:
oL:
In file included from n_In file included from ../src/s2/s2polygon.hnX/usr/local/clang/include/absl/crc/crc32c.h:u(:i32l32ln:
:
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:
noIn file included from In file included from ur/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/internal/str_format/bind.hl_::la3724
s:
s:
      In file included from iIn file included from | /usr/local/clang/include/absl/log/internal/check_impl.hg/usr/local/clang/include/absl/container/inlined_vector.h                     ^:n:
21,56:
 :
/usr/local/clang/include/absl/log/internal/check_op.hiIn file included from :n/usr/local/clang/include/absl/container/internal/inlined_vector.h457s::e351r:
:t /usr/local/clang/include/absl/types/span.h_In file included from :warning: os2geography/geography.cc799type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r::
_232/usr/local/clang/include/absl/log/internal/check_op.ha:
::sIn file included from  450ss2geography/geography.hwarning: :i:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]25g4
:n:
 _note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'  i../src/s2/s2polygon.h
799m: |   Sp34l450p:
a, | In file included from  n  ../src/s2/mutable_s2shape_index.hc< c:o o30n n:
ss In file included from ttx&/usr/local/clang/include/absl/container/btree_map.h ,T,: >x 66 ,Mc:
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th,In file included from Sap /usr/local/clang/include/absl/container/internal/layout.hra*t:n (r198aTbu:
*s eIn file included from la_,/usr/local/clang/include/absl/strings/str_cat.hbns
:oln      116_nn| :
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 :e/usr/local/clang/include/absl/base/nullability.hg 116:i :241n 55:
 :22        :|   warning:                                ^ note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'
 

 /usr/local/clang/include/absl/base/nullability.h     :241 116257 |   | : #  23d e  : f i    nnote: eexpanded from macro 'absl_nullable'   
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2:s      :
4l| In file included from :
_                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s2geography/linear-referencing.hIn file included from n
:s2geography/geography.ho4:n:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.h4In file included from u::
s2geography/geography.hl133In file included from :l:../src/s2/s2polygon.h4 47::
o:32In file included from u :
../src/s2/s2polygon.htnote: In file included from expanded from macro 'ABSL_INTERNAL_X')../src/s2/base/logging.h
:;:29
21:
        :
In file included from 133| In file included from /usr/local/clang/include/absl/container/flat_hash_map.h |                                                       ^/usr/local/clang/include/absl/log/check.h: 
:43 37:
/usr/local/clang/include/absl/base/nullability.h :
In file included from : In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h241 /usr/local/clang/include/absl/log/internal/check_impl.h:: :1922 21:
: :
In file included from   note: /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h expanded from macro 'absl_nonnull'A::
B45859  S::
241L1In file included from  | _#:d/usr/local/clang/include/absl/strings/cord.heI :fN82warning: iT:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nEeRIn file included from 
 N/usr/local/clang/include/absl/crc/internal/crc_cord_state.haA:  bL23458s_:
 | lAAIn file included from _BnT/usr/local/clang/include/absl/crc/crc32c.hSoLT:n_R32nLuI:
BOlGl_In file included from IU /usr/local/clang/include/absl/strings/str_format.h_NNT:ToEE84nRn_:
CNuIn file included from lAA/usr/local/clang/include/absl/strings/internal/str_format/bind.hLl_P:
DT24      EU:
R| F                     ^IIn file included from NE
/usr/local/clang/include/absl/container/inlined_vector.hED:__56BM:
AYIn file included from K(/usr/local/clang/include/absl/container/internal/inlined_vector.hEt:_h35Ci:
In file included from Hs/usr/local/clang/include/absl/types/span.hs2geography/geography.ccE):):C801K,2:_ :
32O In file included from :P s2geography/geography.h _ :warning: S 4type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T :

R In file included from I ../src/s2/s2polygon.h  N :801G 34 | _  :
E X In file included from  T ../src/s2/mutable_s2shape_index.h E  :R N 30 (  :
c  In file included from o n /usr/local/clang/include/absl/container/btree_map.h s t :    66s t :
 d In file included from  :  /usr/local/clang/include/absl/container/internal/btree.h: s : t  70r i  :
n g\In file included from  & 
/usr/local/clang/include/absl/container/internal/layout.h) ;      : 
| 198                                              ^~~~T      :

*| In file included from  ^/usr/local/clang/include/absl/strings/str_cat.ha
:b116s/usr/local/clang/include/absl/log/internal/check_op.h:
l:In file included from _449/usr/local/clang/include/absl/strings/internal/stringify_sink.hn::/usr/local/clang/include/absl/container/internal/raw_hash_map.hu3123:l::
148l a/usr/local/clang/include/absl/strings/numbers.h:note: b:l3expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'118e:
:  56e  nwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]449d )
 | warning:    /usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]neo:
xe135txe:  cr16118enp: |  tt   e{note:  m p
lexpanded from macro 'ABSL_INTERNAL_X'        a 
| t                                ^e  
c   o/usr/local/clang/include/absl/base/nullability.hn135 :s |   257t   : c h 23 a  :r    note: *   expanded from macro 'absl_nullable' a  
b s    l  257_ nt |  # o hdnen uif i l snle  M)  a)a k )be C s hAl _ n eacBubksOSllpLl:aS_:AbturTlienitT n1R_Ig2N8B(u*lU T l a Eab\l_b
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/usr/local/clang/include/absl/base/nullability.hEn:u_241lB:OlU22 N:Do  {note: uexpanded from macro 'absl_nonnull' t 
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f i/usr/local/clang/include/absl/base/nullability.h n : e241  : a 22 b: s l note:  _expanded from macro 'absl_nonnull'n 
o n    n241u  |  l#l d  e _\f
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l:      _31| n                     ^o:
n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
_No   n31In file included from n | s2geography/distance.ccu#:ld2le:

fIn file included from       is2geography/distance.h| n:                     ^e4
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AIn file included from Bs2geography/geography.hS:L4_:
IIn file included from N../src/s2/s2polygon.hT:E32R:
NIn file included from A../src/s2/base/logging.hL:_21I:
FIn file included from _/usr/local/clang/include/absl/log/check.ht:r37u:
eIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hi:f21_:
s/usr/local/clang/include/absl/log/internal/check_op.ha:t458i:s1f:i ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 ./usr/local/clang/include/absl/log/internal/check_op.h.:.450): 25i:f _note: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
ti  s450f | i e d 
        |          ^x
, x, conIn file included from ss2geography/geography.cct: 2c:
hIn file included from as2geography/geography.hr:*4 :
In file included from aIn file included from bs2geography/coverings.cc../src/s2/s2polygon.hs::l234_:
:
nIn file included from In file included from os2geography/coverings.h../src/s2/mutable_s2shape_index.hn::n630u:
:
lIn file included from In file included from ls2geography/geography.h/usr/local/clang/include/absl/container/btree_map.h)::
466      :
:
| In file included from In file included from                         ^../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/btree.h
::/usr/local/clang/include/absl/base/nullability.h2970::
:
241In file included from In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/container/internal/layout.h22:::45198 :
:
note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/strings/str_cat.h
148:  :1162413:
 | :In file included from # /usr/local/clang/include/absl/strings/internal/stringify_sink.hdwarning: :e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]23f
:
i/usr/local/clang/include/absl/strings/numbers.hn:e152   :a14837b | : s  lAwarning: _Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]SnL
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Ds      ieg| ir                     ^tt_s
(ouri_nats3s2i_gtn ,i ,i ncshearrt*_ In file included from oars2geography/distance.ccb_:sa2ls:
_sIn file included from ins2geography/distance.hgo:nn4n_:
uiIn file included from lms2geography/geography.hlp:l 4b,:
u In file included from fc../src/s2/s2polygon.h)o:;n32s
:
t      &In file included from | ,../src/s2/base/logging.h                                    ^ :
c21o/usr/local/clang/include/absl/base/nullability.h:
n:In file included from s241t/usr/local/clang/include/absl/log/check.h:&:22,37 ::
t In file included from rnote: u/usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull'e:,
21
:
        /usr/local/clang/include/absl/log/internal/check_op.h241| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | 459#
:d1e  :f149 i | warning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
  a b  s 459l  | _A nBo SnL n _ uL lOl G _ _I NNo TnE nRu NlAtlL
r_      Du| Ee                     ^F,
I NAEB_SMLA_KIEN_TCEHRENCAKL__OIn file included from SPs2geography/geography.cc_I:NSG2TL:
ERIn file included from I_s2geography/geography.hNA:GR4G_:
(E)XIn file included from )T../src/s2/s2polygon.h;E:R
34N      :
(| In file included from c                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/mutable_s2shape_index.ho
:n30s:
t/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from  :a/usr/local/clang/include/absl/container/btree_map.hb135:s:66l11:
::In file included from : /usr/local/clang/include/absl/container/internal/btree.hsnote: t:expanded from macro 'ABSL_INTERNAL_X'r70i
n:
gIn file included from _/usr/local/clang/include/absl/container/internal/layout.h  v:i135198e | :
w &In file included from  )/usr/local/clang/include/absl/strings/str_cat.h ;:
 116       :
 | In file included from ^ /usr/local/clang/include/absl/strings/internal/stringify_sink.h
 : 23/usr/local/clang/include/absl/log/internal/check_op.h :
:t/usr/local/clang/include/absl/strings/numbers.h449h::i15631s::)55 ):note: ) expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' warning: 
Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B  
S449L | _   A156 T | ebTxotRoIelrB nsU atTfeEe_mL_psIltFaEtreTt oIc8oM_nbsEats_ Bec(OhaaUbrs*Nl :Da :{bss tlr _in nog n_n vu ile lw    Mta ekx etC ,h  ei cnk tO8 p_ S tt *r  ian bgs (l _  n  o\n 
n       u | l                              ^ l
  v /usr/local/clang/include/absl/base/nullability.ha\:l
241u      :e| 22,          ^~~~:

       | note:                                                       ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21In file included from :
s2geography/geography.ccIn file included from :/usr/local/clang/include/absl/log/check.h2::
37In file included from :
s2geography/geography.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h4::
21In file included from :
../src/s2/s2polygon.h:/usr/local/clang/include/absl/log/internal/check_op.h34::
459In file included from :../src/s2/mutable_s2shape_index.h1::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
66:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree.h::45070::
25In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116:
  In file included from 450/usr/local/clang/include/absl/strings/internal/stringify_sink.h | : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 158 :x57,:  xwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t158  | cbhoaorl*  saabfsel__snt/usr/local/clang/include/absl/container/internal/raw_hash_map.hor:ntn152ou1:l6l52_)b:
a       swarning: | e                        ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
a
b/usr/local/clang/include/absl/base/nullability.hs:l241:  ::15222s | :t  r note:  iexpanded from macro 'absl_nonnull' n
 g   _ 241v  | i# ed we  ft ie nx et  ,a  b isn lt_f1na6o_nltn*su lealb, s_ lNA_oBnSnLo_nnuInlNullT
lE       R| v                     ^Na
AlLu_eS,I
N      G| L                                                        ^E
_A/usr/local/clang/include/absl/base/nullability.hR:G241(:)22):; 
In file included from       note: s2geography/distance.ccexpanded from macro 'absl_nonnull'| :                                                   ^
2
:
  In file included from 241/usr/local/clang/include/absl/container/internal/raw_hash_map.hs2geography/distance.h | ::#1204d::
e9In file included from f:s2geography/geography.hi :n4enote: :
 macro 'ABSL_INTERNAL_X' defined hereIn file included from a
../src/s2/s2polygon.hb:32s:
l  In file included from _120../src/s2/base/logging.hn | :o#21nd:
neIn file included from uf/usr/local/clang/include/absl/log/check.hli:ln37e :
_ In file included from NA/usr/local/clang/include/absl/log/internal/check_impl.hoB:nS21nL:
u_/usr/local/clang/include/absl/log/internal/check_op.hlI:lN460
T:      E1| R:                     ^N 
Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
X(Fu  n460c | ,A BCSaLl_lLIn file included from eOs2geography/geography.ccGe:_,2I :
NKIn file included from TQs2geography/geography.hEu:Ra4Nl:
A,In file included from L ../src/s2/s2polygon.h_VDQ:Eu34Fa:
IlIn file included from ,N../src/s2/mutable_s2shape_index.h E:K_30VM:
AaIn file included from Kl/usr/local/clang/include/absl/container/btree_map.hEu:_e66C,:
 HIn file included from EV/usr/local/clang/include/absl/container/internal/btree.hCV:Ka70_l:
OuIn file included from Pe/usr/local/clang/include/absl/container/internal/layout.h_,:S 198TT:
RaIn file included from Ii/usr/local/clang/include/absl/strings/str_cat.hNl:G,116 _:
E.In file included from X./usr/local/clang/include/absl/strings/internal/stringify_sink.hT.:E)23R :
N\/usr/local/clang/include/absl/strings/numbers.h(
:c      160o| :n        ^57s
:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   a160b | sblo_onlo nsnauflel_)s;t
r      t| o^3
2_/usr/local/clang/include/absl/log/internal/check_op.hb:a449s:e31(:a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
::s  t449r | i n ge_xvtieerwn  tteexmtp,l aitnet 3c2o_nts*t  acbhsalr_*n oanbnsull_ln ovnanluulel, 
M      a| k                                                        ^e
Ch/usr/local/clang/include/absl/base/nullability.he:c241k:O22p:S tnote: rexpanded from macro 'absl_nonnull'i
ng  (241  |  # d\e
f      i| n                              ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from In file included from s2geography/geography.ccs2geography/distance.cc::22:
:
In file included from In file included from s2geography/geography.hs2geography/distance.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h:::44151:
:
:In file included from In file included from 3../src/s2/s2polygon.hs2geography/geography.h::: 344warning: :
:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from In file included from 
../src/s2/mutable_s2shape_index.h../src/s2/s2polygon.h::3032:
  :
In file included from 151In file included from /usr/local/clang/include/absl/container/btree_map.h | ../src/s2/base/logging.h :: 66A21B:
:
SIn file included from In file included from L/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/check.h_::I70N37T:
:
EIn file included from RIn file included from N/usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/log/internal/check_impl.hA::L198_21:
X:
In file included from (/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/str_cat.hi::n460116s::
e66In file included from r:t/usr/local/clang/include/absl/strings/internal/stringify_sink.h _warning: :otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23r
_:
a  /usr/local/clang/include/absl/strings/numbers.hs460:s | 162Ai:Bg57nS:L, _ warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iO
Gn_sIe  rNt162T_ | EobrRoN_oAlaLs s_isgDanE_fFieIm_pNslEt,_r MtAcooKn6sEt4__&Cb,HaE sCe&K(_&a,Ob Ps_flS:Ta:RslItNsrGie_,nEg
X_Tv      Ei| ReN  ^w( 
ctoe/usr/local/clang/include/absl/container/internal/raw_hash_map.hnxs:tt,133  c:ihn52at:r6* 4 note: _atexpanded from macro 'ABSL_INTERNAL_X'b*
s la_bn  so133ln_ | nnu oln ln ) u; l
 l        | v                                                                 ^ a
l u/usr/local/clang/include/absl/base/nullability.he :,A241
B:      S22| L:                                                        ^_ 
Inote: /usr/local/clang/include/absl/base/nullability.hNexpanded from macro 'absl_nonnull':T
241E  :R24122N | :#A dLnote: eexpanded from macro 'absl_nonnull'_f
iAn  eT241 T | a#RbdsIeBlUf_iTnnoEen _naCubAlPsllT _U_nRNooEnnnDnu_ulBlllY 
_(      Nt| ho                     ^ni
sn)u)l,l 
 In file included from        s2geography/distance.cc |  :                      ^ 2 
:
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 32 :
In file included from  In file included from s2geography/geography.cc ../src/s2/base/logging.h: :2\21:

:
In file included from       In file included from s2geography/geography.h| /usr/local/clang/include/absl/log/check.h                                                   ^::
437:
:
In file included from /usr/local/clang/include/absl/container/internal/common.hIn file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/log/internal/check_impl.h:32:34:21:
9:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:../src/s2/mutable_s2shape_index.h: :note: 460macro 'ABSL_INTERNAL_IF_false' defined here30:
:
66In file included from :/usr/local/clang/include/absl/container/btree_map.h    :32warning: 66 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
#
In file included from d/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/base/nullability.he::f70241i:
:nIn file included from 22e/usr/local/clang/include/absl/container/internal/layout.h: : A198note: B:
expanded from macro 'absl_nonnull'SIn file included from 
L/usr/local/clang/include/absl/strings/str_cat.h  _:241I116 | N:
#TIn file included from Ed/usr/local/clang/include/absl/strings/internal/stringify_sink.hRe:fN23iA:
nL/usr/local/clang/include/absl/strings/numbers.he_: I165aF:b_39fs:al _lwarning: nstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oe
(nin  fu165l_ | sl  a _ tN oi n sn fu il le 
 d       ,|                       ^  
 . . In file included from  .s2geography/distance.cc ):  2 _:
 _In file included from  Vs2geography/distance.h A:a_4bA:
RsIn file included from Gls2geography/geography.hS::_:4i_:
n
In file included from t      ../src/s2/s2polygon.h1| :2        ^328
:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from In file included from u/usr/local/clang/include/absl/log/internal/check_impl.hs2geography/coverings.ccl:l:21 2:
v:
/usr/local/clang/include/absl/log/internal/check_op.haIn file included from :ls2geography/coverings.h460u::e61,:
: In file included from  is2geography/geography.hwarning: n:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t4
 :
bIn file included from   a../src/s2/s2polygon.h460s: | eA)29B;S
:
L      In file included from _| L/usr/local/clang/include/absl/container/flat_hash_map.h                                      ^O:
G45_:
/usr/local/clang/include/absl/base/nullability.hI/usr/local/clang/include/absl/container/internal/raw_hash_map.h:N:241T151:E:22R3:N: A note: Lwarning: _expanded from macro 'absl_nonnull'Dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
E
F  I241N | E#_  dM151eAf | Ki En _eCA HaBEbCSsKlL__O_nPoI_nSNnTuTRElIRlN NG_A_NELoXn_TnEXuRl(Nli(
cn      os| en                     ^rs
tt _cohra_ra*s saibgsIn file included from nls2geography/geography.cc,_: n2io:
nnIn file included from nss2geography/geography.hue:lr4tl:
)_In file included from ;o../src/s2/s2polygon.h
r:      _34| a^:
s
In file included from s../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/check_op.hi:g:30n450:
_:In file included from i25/usr/local/clang/include/absl/container/btree_map.hm::p 66lnote: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN',In file included from 
 /usr/local/clang/include/absl/container/internal/btree.h  c:450o70 | n:
 sIn file included from  t/usr/local/clang/include/absl/container/internal/layout.h &: ,198  :
 &In file included from &x/usr/local/clang/include/absl/strings/str_cat.h,,:  116xf:
,aIn file included from  l/usr/local/clang/include/absl/strings/internal/stringify_sink.hcs:oe23n,:
s
/usr/local/clang/include/absl/strings/numbers.ht      : | 166c  ^:h
57a:r/usr/local/clang/include/absl/container/internal/raw_hash_map.h *:warning:  135type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:
b16s:l   _166nnote:  | obexpanded from macro 'ABSL_INTERNAL_X'non
oull ls  )a
135f      e | | _                        ^ s
t r/usr/local/clang/include/absl/base/nullability.ht :o 241u :8 22_ :b  a note: sexpanded from macro 'absl_nonnull' e
t(h  ia241bs | s#)ld):e):fs itnrAeiB nSaLgb__sAvliT_enTwRo nItneBuxlUtl,T  _EuNi_oLnIntFn8uE_ltTl*
I       aM| b                     ^Es
l__BnOoUnNnDu l{l   v a l u e , 
 In file included from        s2geography/distance.cc|  :                                                        ^ 2
 :
/usr/local/clang/include/absl/base/nullability.h In file included from : s2geography/distance.h241 : :4 22:
 :In file included from   s2geography/geography.h :note:  4expanded from macro 'absl_nonnull' :

 In file included from    ../src/s2/s2polygon.h241 : |  32# :
d In file included from e ../src/s2/base/logging.hf\:i
21n      :
e| In file included from                 ^/usr/local/clang/include/absl/log/check.ha
:b37/usr/local/clang/include/absl/container/internal/common.hs:
l:In file included from _32/usr/local/clang/include/absl/log/internal/check_impl.hn::o921n::
n /usr/local/clang/include/absl/log/internal/check_op.hunote: :lmacro 'ABSL_INTERNAL_IF_false' defined here461l
: 1_   :N32 o | warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#n
duelf  li461
n | e      A | B                     ^AS
BLS_LL_OIGN_TIENRTNEARLN_AILF__DfIn file included from Eas2geography/geography.ccFl:Is2eN:
(EIn file included from _is2geography/geography.hfM:_A4Ks:
aEIn file included from t_../src/s2/s2polygon.hCi:Hs34Ef:
CiIn file included from Ke../src/s2/mutable_s2shape_index.hd_:,O30 P:
_.In file included from .S/usr/local/clang/include/absl/container/btree_map.hT.:R)66I :
N_In file included from G_/usr/local/clang/include/absl/container/internal/btree.h_V:EA70X_:
ATIn file included from REG/usr/local/clang/include/absl/container/internal/layout.hRS:N_198_(
:

      In file included from       | /usr/local/clang/include/absl/strings/str_cat.h|         ^:^
116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/log/internal/check_op.h::23449:
:31/usr/local/clang/include/absl/strings/numbers.h:: 168:note: 59expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
449 |     e168x | tbeoronl  tseamfpel_astter tcooun1s6t_ bcahsaer(*a basbls:l:_sntorninnuIn file included from gls2geography/coverings.cc_l:v 2iMe:
awkIn file included from  etCs2geography/coverings.hehx:et6c,k :
uOIn file included from pis2geography/geography.hSnt:tr14i6:
_ntIn file included from g*(../src/s2/s2polygon.h  a: b29 s\l:

_In file included from       n/usr/local/clang/include/absl/container/flat_hash_map.ho| n                              ^n:
u45l/usr/local/clang/include/absl/base/nullability.h:
l: /usr/local/clang/include/absl/container/internal/raw_hash_map.h241v::a15422l::u51 e:note: ,expanded from macro 'absl_nonnull' 

warning:         passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 241                                                          ^
 | 
#d  /usr/local/clang/include/absl/base/nullability.he154:f | 241i :n 22e :   a note: bexpanded from macro 'absl_nonnull's 
l   _ 241n  | o#n d neu fli ln  e_  Na obn snl u_tlnlro
nu      en| u,                     ^l lA
 B_SNLoIn file included from _ns2geography/distance.ccIn:uNl2Tl:
E
In file included from R      s2geography/distance.hN| :                     ^A4
L:
_In file included from Ss2geography/geography.hI:N4G:
LIn file included from E../src/s2/s2polygon.h_:A32R:
GIn file included from In file included from (s2geography/geography.cc../src/s2/base/logging.h)::)221;:
:

In file included from In file included from       s2geography/geography.h/usr/local/clang/include/absl/log/check.h| ::                                                  ^437
:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/log/internal/check_impl.h:120:34:21:
9:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:../src/s2/mutable_s2shape_index.h: :462note: 30:macro 'ABSL_INTERNAL_X' defined here:
24
In file included from :/usr/local/clang/include/absl/container/btree_map.h :  66warning: 120:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | In file included from 
#/usr/local/clang/include/absl/container/internal/btree.hd  :e46270f | :
 iIn file included from  n/usr/local/clang/include/absl/container/internal/layout.h e:  198cA:
oBIn file included from nS/usr/local/clang/include/absl/strings/str_cat.hsL:t_116 I:
sNIn file included from iT/usr/local/clang/include/absl/strings/internal/stringify_sink.hEg:nR23eN:
A/usr/local/clang/include/absl/strings/numbers.hdL: _170cX:h(59aF:ru *nwarning:  ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a,
b sCl  a_l170nl | eobneono,ull  lKs)a;Qf
eu      _a| sl                       ^t,
r t/usr/local/clang/include/absl/base/nullability.hVo:uQ2413u:2a22_l:b a,note: sexpanded from macro 'absl_nonnull' e
(Ka  bVs241al | :l#:dusetferii,nn egV _aVvbiasellw_ unteo,enx ntuT,l alu ii_nlNt,3o 2n_.nt.u*.l l)a
b       s\| l                     ^
_
n      o| n        ^n
uIn file included from ls2geography/distance.ccl: 2v:
aIn file included from ls2geography/distance.hu:e4,:

In file included from       s2geography/geography.h| :                                                          ^4
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h::32241:
:In file included from 22../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i462n:e24 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _NonnullIn file included from 
s2geography/geography.cc      :| 2                     ^:

In file included from s2geography/geography.h:4:
In file included from In file included from ../src/s2/s2polygon.hs2geography/distance.cc::342:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.hs2geography/distance.h::304:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2geography/geography.h::664:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2polygon.h::7032:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h../src/s2/base/logging.h::19821:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/log/check.h::11637:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/log/internal/check_op.h::172461::591::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    461172 |  | AbBoSoLl_ LsOaGf_eI_NsTtErRtN/usr/local/clang/include/absl/container/internal/raw_hash_map.hoA:uL1536_4:D_E3bFa:Is Newarning: E(_passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]aMb
AsKlE:  _:C153sHt | ErC iK n_AgO_BPv_SiSLeT_wRI INtTNeGEx_RtEN,X ATuLEi_RXNn((t
i6      4n| _s^te
*r t/usr/local/clang/include/absl/log/internal/check_op.ha_:bo450sr:l_25_a:ns osnnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'iu
gln  l,450   | v ia ln u se e, 
rx      t,|  _                                                          ^xo,
 rc/usr/local/clang/include/absl/base/nullability.ho_:na241ss:ts22 i:cg hnnote: _aexpanded from macro 'absl_nonnull'ri
*m   apb241ls | l,#_d neofcinonnenu lsalbt)s
&l      _,n| o                         ^n&
n&u/usr/local/clang/include/absl/base/nullability.hl,:l 241 f_:aN22ol:ns nnote: euexpanded from macro 'absl_nonnull'l,
l

              241| |   ^ |                      ^
#
d/usr/local/clang/include/absl/container/internal/raw_hash_map.he:f133i:n52e:  abnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_no  n133n | In file included from u s2geography/geography.cc l:l 2  :
 _In file included from  Ns2geography/geography.ho :n 4 n:
u In file included from lA../src/s2/s2polygon.hlB:
S34L      :
_| IIn file included from                      ^N../src/s2/mutable_s2shape_index.h
T:E30R:
NIn file included from A/usr/local/clang/include/absl/container/btree_map.hL:_66A:
TIn file included from T/usr/local/clang/include/absl/container/internal/btree.hR:I70B:
UIn file included from TIn file included from /usr/local/clang/include/absl/container/internal/layout.hEs2geography/distance.cc:_:198C2:
A:
In file included from PIn file included from /usr/local/clang/include/absl/strings/str_cat.hTs2geography/distance.h:U:116R4:
E:
In file included from DIn file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h_s2geography/geography.h:B:23Y4:
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 21 :
   In file included from 175 /usr/local/clang/include/absl/log/check.h |  :  37  :
  In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h  :  21  :
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B       S L| a_b                                                   ^LsO
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In file included from In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polygon.h/usr/local/clang/include/absl/container/flat_hash_map.h:::2413445::
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22In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:../src/s2/mutable_s2shape_index.h: :153note: 30expanded from macro 'absl_nonnull'::

3In file included from :  /usr/local/clang/include/absl/container/btree_map.h 241:warning:  | 66#passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
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In file included from e/usr/local/clang/include/absl/container/internal/btree.hf:i70n  :
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{       |                       ^ In file included from 
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4 In file included from :
 s2geography/distance.hIn file included from  :../src/s2/s2polygon.h 4: 34 :
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      In file included from :
| /usr/local/clang/include/absl/container/internal/layout.h               ^In file included from :
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:In file included from    182/usr/local/clang/include/absl/log/check.h31:: | 60#37:d:
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In file included from s2geography/coverings.cc      ../src/s2/base/logging.h:| :                                                           ^221
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In file included from /usr/local/clang/include/absl/base/nullability.hIn file included from s2geography/coverings.h:/usr/local/clang/include/absl/log/check.h:241:6:37:
22:
In file included from :In file included from s2geography/geography.h /usr/local/clang/include/absl/log/internal/check_impl.hnote: ::expanded from macro 'absl_nonnull'421
:
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In file included from   /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2polygon.h241:: | 463#29:d:
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/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/base/nullability.h::135241::1122::In file included from   s2geography/distance.ccnote: :note: expanded from macro 'ABSL_INTERNAL_X'2expanded from macro 'absl_nonnull'
:

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42(In file included from :)/usr/local/clang/include/absl/log/internal/check_impl.h) :;21warning: 
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type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h      
:| 465                                                   ^:  
66191: | /usr/local/clang/include/absl/container/internal/raw_hash_map.h s:warning: i120type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]z:
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  241 | #define abslIn file included from _s2geography/geography.ccn:o2n:
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30      :
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:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:In file included from 198s2geography/distance.cc:
:In file included from 2/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116s2geography/distance.h:
:In file included from 4/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23s2geography/geography.h:
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:In file included from 198../src/s2/s2polygon.h::732::
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198In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.hc:h21a:
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o3      n:| n                      ^u
lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
In file included from bs2geography/distance.ccu:f  2f155:
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A4B      :
S| In file included from       ^Ls2geography/geography.h
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241TIn file included from :E../src/s2/s2polygon.h22R::N32 A:
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n | In file included from #s/usr/local/clang/include/absl/log/check.hde:er37ft:
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RIn file included from N/usr/local/clang/include/absl/strings/str_cat.h  (:c133116o | :
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u f/usr/local/clang/include/absl/base/nullability.hf :e 241r :) 22
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                                                    ^note:       
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241241: | 22#/usr/local/clang/include/absl/container/internal/common.h:d: e31note: fexpanded from macro 'absl_nonnull'i:
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In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32In file included from :
s2geography/geography.ccIn file included from :../src/s2/base/logging.hIn file included from 2:s2geography/coverings.cc:
21:In file included from :
2s2geography/geography.hIn file included from :
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37:In file included from :
6../src/s2/s2polygon.hIn file included from :
:/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from 34:s2geography/geography.h:
21:In file included from :
4../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/check_op.h:
::In file included from 30502../src/s2/s2polygon.h:
::In file included from 129/usr/local/clang/include/absl/container/btree_map.h::
: In file included from 66warning: /usr/local/clang/include/absl/container/flat_hash_map.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:
In file included from 45/usr/local/clang/include/absl/container/internal/btree.h:
:  /usr/local/clang/include/absl/container/internal/raw_hash_map.h70502::
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IIn file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.h  T:E15523R | :
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_RON  PA199L_ | _I MX P( Li (nACsBhSeerLtc_k_I_NoErTQ_E,Ra s=Ns=Ai)L
_g      Nn| E,^E 
Di_/usr/local/clang/include/absl/log/internal/check_op.hnMs:Ie488Nr:t_32_So:Ir Z_note: aEexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'(s
bsuifg  fn488e_ | ri ,m  ikpnFllai,sn teTc ocBoounnfssftteer&xSp,irz  e&c&o),n;s
 tt      r | c    ^uh
aer,/usr/local/clang/include/absl/base/macros.h*
:       251a| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b18
s:l _  note: nexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'156u
 | l l  a 251b  | l  e   _ n_ aam tet #r# iIb mu p t el_ (_  (  (  d fi aa lg sn eo, s  e _ Ai Bf (S _L__ b Iu iN l\Tt
iE      nR| _                               ^NoA
bLj/usr/local/clang/include/absl/base/nullability.he_:cS257tI:_N23Gs:Li zEnote: e_expanded from macro 'absl_nullable'(A
ORb  jG257,( |  )#0)d;)e 
f<      i | nN                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e,  
a\b
s      l/usr/local/clang/include/absl/container/internal/raw_hash_map.h| _                 ^:n
u133l:l47a:b lnote: eexpanded from macro 'ABSL_INTERNAL_X' 
_NulIn file included from   ls2geography/geography.cc133a:b | 2l :
e In file included from 
 s2geography/geography.h       :|  4                      ^ :

 In file included from  ../src/s2/s2polygon.h : 34A:
BIn file included from S../src/s2/mutable_s2shape_index.hL:_30In file included from I:
Ns2geography/distance.ccIn file included from T:/usr/local/clang/include/absl/container/btree_map.hE2R::
N66In file included from A:
s2geography/distance.hLIn file included from :_/usr/local/clang/include/absl/container/internal/btree.h4A::
T70In file included from T:
Rs2geography/geography.hIn file included from I:B/usr/local/clang/include/absl/container/internal/layout.h4U::
T198In file included from E:
../src/s2/s2polygon.h_In file included from C:/usr/local/clang/include/absl/strings/str_cat.hA32:P:
116TIn file included from :
U../src/s2/base/logging.hIn file included from R:/usr/local/clang/include/absl/strings/internal/stringify_sink.hE21D:_:
23BIn file included from Y:
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/numbers.h(::t37200h:
i:In file included from s7)/usr/local/clang/include/absl/log/internal/check_impl.h:): ,warning: 21 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 
/usr/local/clang/include/absl/log/internal/check_op.h : 502   :200 1 |  :c  h warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] r
 */usr/local/clang/include/absl/log/internal/check_op.h  :a 489b :s 47l :_  n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n 
u l    l 489   | F  a  \s 
t I       n | t                                              ^~~~cT
oonBsutf fTe1r&( uvi1n,t 3c/usr/local/clang/include/absl/container/internal/raw_hash_map.h2o_n:ts 155tn: ,T3 2c&h: av r2*warning: ,  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ac
bo/usr/local/clang/include/absl/container/internal/raw_hash_map.hsn:ls_135tn: oc16nhn:au rl*note: lexpanded from macro 'ABSL_INTERNAL_X'  ao
bustl_  _s135nto | rn) n
u        l|  l      ^  
 e /usr/local/clang/include/absl/base/nullability.h x :p 241rt:th22ei:x tsnote: ))expanded from macro 'absl_nonnull') )
{    A 241 B |  S# Ld\e_
fA      iT| n                                              ^Te
R I/usr/local/clang/include/absl/base/nullability.hBaU:TbE241_sL:lI22F_:En Tnote: Ioexpanded from macro 'absl_nonnull'nM
nEu  l_241Bl |  O#_dUNeoNfDni n{nue l  l a
b       s | l                     ^ _
 n o n n u l In file included from l s2geography/geography.cc  :_ 2N :
o In file included from n s2geography/geography.h n:u 4l :
l In file included from 
 ../src/s2/s2polygon.h       :|  34                      ^:
 
In file included from  ../src/s2/mutable_s2shape_index.h :\30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h               ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/btree.h::3270::
9In file included from :/usr/local/clang/include/absl/container/internal/layout.h :note: 198macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:   11632:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e200 :A54B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTE  R200N | AcLh_aIrF*_ faablssle_(niofn_nsualtli sFfaisetdI,n t.T.o.B)u f_f_In file included from eVs2geography/distance.ccrA:(_2uA:
iRIn file included from nGs2geography/distance.hSt:_342_:
_
In file included from t      s2geography/geography.h | :        ^n4,
:
 In file included from c../src/s2/s2polygon.hh:a32r:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
o/usr/local/clang/include/absl/log/internal/check_op.hu:t502_:s1t:r )warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:497:/usr/local/clang/include/absl/base/nullability.h32::241 :22note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
note: expanded from macro 'absl_nonnull'
    497241 |  |  # dienfliinnee  acbosnls_tneoxnpnru lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nullable name##Impl(                   \
      |                                ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/geography.cc::2572::
23In file included from :s2geography/geography.h :4note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2polygon.h:34  :
257In file included from  | ../src/s2/mutable_s2shape_index.h#:d30e:
fIn file included from i/usr/local/clang/include/absl/container/btree_map.hn:e66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l70_:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:In file included from l198s2geography/coverings.cca:
:bIn file included from l2/usr/local/clang/include/absl/strings/str_cat.he:
: In file included from 116_s2geography/coverings.h:
N:In file included from u6/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:
:lIn file included from 23as2geography/geography.h:
b:/usr/local/clang/include/absl/strings/numbers.hl4:e:
201
In file included from :      ../src/s2/s2polygon.h5| ::                      ^29 
:
warning: In file included from 'diagnose_if' is a clang extension [-Wgcc-compat]/usr/local/clang/include/absl/container/flat_hash_map.h
:45:
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h201: | In file included from 158 s2geography/distance.cc: : 512 ::
A In file included from Bs2geography/distance.hSwarning: :Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]4_
:
IIn file included from Ns2geography/geography.hT  :E1584R | :
N In file included from A ../src/s2/s2polygon.hL :_ 32N :
E In file included from E ../src/s2/base/logging.h D: _21 M:
 IIn file included from  N /usr/local/clang/include/absl/log/check.h_ : S37I :
Z In file included from E /usr/local/clang/include/absl/log/internal/check_impl.ht(:ro21uu:
te/usr/local/clang/include/absl/log/internal/check_op.h_,:s 502tA:BrS1,L: _ kIwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Na
sT/usr/local/clang/include/absl/log/internal/check_op.htE:TR498oN:BA35uL:f_ Sfnote: eIexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'rN
SGiL  zE498e_ | )A ;R 
G       ( )|      ^) 
i;n
/usr/local/clang/include/absl/base/macros.ht      : | 251v                                                  ^:1
18,: /usr/local/clang/include/absl/container/internal/raw_hash_map.h i:note: nexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'120t
 :v9  2:251,  |  note:  macro 'ABSL_INTERNAL_X' defined herec o
_n_sa  tt t120cr | hia#brud*t eea_bf_s(il(n_edni oAangBnnuSoLl_sleI N_TeEixRfpN(rA_tL_eb_xutXi)l( t{Fi nu _ no cb j, e  c Ct _a ls il ze e e( ,O  b jK\,Q
 u      0a| )                                  ^l ,
 <V/usr/local/clang/include/absl/base/nullability.h Q:Nu241,a: l22\,: 
 Knote:       Vexpanded from macro 'absl_nonnull'| a
                 ^l
u  e241, |  #VdVeafliuIn file included from nee,s2geography/geography.cc  :Ta2abi:
slIn file included from l,s2geography/geography.h_ n:.o4.n.:
n)In file included from  u../src/s2/s2polygon.hl\:
l34       :
_| In file included from N        ^../src/s2/mutable_s2shape_index.ho
:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl:
66      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc/usr/local/clang/include/absl/container/internal/raw_hash_map.h::2157:
:In file included from 3s2geography/geography.h:: 4:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2polygon.h
:34:
In file included from ../src/s2/mutable_s2shape_index.h  :15730 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hA:B66S:
LIn file included from _/usr/local/clang/include/absl/container/internal/btree.hI:N70T:
EIn file included from R/usr/local/clang/include/absl/container/internal/layout.hN:A198L:
_In file included from X/usr/local/clang/include/absl/strings/str_cat.h(:i116n:
sIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:t23_:
o/usr/local/clang/include/absl/strings/numbers.hr:_202a:s53s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 in  s202e | rcth_aorr*_ aasbssilg_nn_oinmnpull,l  cFoanssttI&n,t T&o&B,u ftfreure(,i
n      t| 6  ^4
_t/usr/local/clang/include/absl/container/internal/raw_hash_map.h :i133,: 52c:h anote: rexpanded from macro 'ABSL_INTERNAL_X'*
 ab  s133l | _ n o n n u l l   b uAfBfSeLr_)I
N      T| E                                                    ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241A:T22T:R Inote: Bexpanded from macro 'absl_nonnull'U
TE  _241C | A#PdTeUfRiEnDe_ BaYb(stlh_inso)n)n,u l l   _ N o n n u l l 
        |                       ^ 
          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTIn file included from Es2geography/geography.ccR:N2A:
LIn file included from _s2geography/geography.hI:F4_:
tIn file included from r../src/s2/s2polygon.hu:e34(:
iIn file included from f../src/s2/mutable_s2shape_index.h_:s30a:
tIn file included from i/usr/local/clang/include/absl/container/btree_map.hs:f66i:
eIn file included from d/usr/local/clang/include/absl/container/internal/btree.h,: 70.:
.In file included from ./usr/local/clang/include/absl/container/internal/layout.h): 198i:
fIn file included from _/usr/local/clang/include/absl/strings/str_cat.hs:a116t:
iIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hf:i23e:
d/usr/local/clang/include/absl/strings/numbers.h
:      203| :        ^5
: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTIn file included from Es2geography/coverings.ccR:N2A:
LIn file included from _s2geography/coverings.hN:E6E:
DIn file included from _s2geography/geography.hM:I4N:
_In file included from S../src/s2/s2polygon.hI:Z29E:
(In file included from b/usr/local/clang/include/absl/container/flat_hash_map.hu:f45f:
e/usr/local/clang/include/absl/container/internal/raw_hash_map.hr:,157 :k3F:a swarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]T
oBuff  e157r | S i zAeB)S;L
_      I| N    ^T
ER/usr/local/clang/include/absl/base/macros.hN:A251L:_18X:( inote: nexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE's
ert  _251o | r _ a_s_saitgtnr,i biuntsee_r_t(_(odri_aagsnsoisgen__iifm(p_l_,b uciolntsitn&_,o b&j&e,c tt_rsuiez,e
(      O| b  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~j
, 0  )158  | <   N ,   \ 
        |                   ^ 
        true,In file included from  s2geography/geography.ccA:B2S:
LIn file included from _s2geography/geography.hI:N4T:
EIn file included from R../src/s2/s2polygon.hN:A34L:
_In file included from S../src/s2/mutable_s2shape_index.hI:N30G:
LIn file included from E/usr/local/clang/include/absl/container/btree_map.h_:A66R:
GIn file included from (/usr/local/clang/include/absl/container/internal/btree.h):)70;:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h116::
133In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h47::23 :
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'ABSL_INTERNAL_X':
204:7:   warning: 133type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      204  |  c h a r *A BaSbLs_lI_NnToEnRnNuAlLl_ AFTaTsRtIIBnUtTTEo_BCuAfPfTeUrR(EuDi_nBtY6(4t_hti si),) ,c h a r *   a b s l _ n o n n u l l   b u f f e r ) 
\      
|             ^| 
                                              ^~~~
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:  157241: | 3#:d ewarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
n/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 135a:b16s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l135l |   _ N o n n u l l 
       t| h                     ^i
s))) ABSL_In file included from As2geography/geography.ccT:T2R:
IIn file included from Bs2geography/geography.hU:T4E:
_In file included from L../src/s2/s2polygon.hI:F34E:
TIn file included from I../src/s2/mutable_s2shape_index.hM:E30_:
BIn file included from O/usr/local/clang/include/absl/container/btree_map.hU:N66D:
 In file included from {/usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 204 : 54 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \  
204       | | c               ^h
ar/usr/local/clang/include/absl/container/internal/common.h*: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l |  #FdaesftiInnet TAoBBSuLf_fIeNrT(EuRiNnAtL6_4I_Ft_ tir,u ec(hiafr_*s aatbisslf_ineodn,n u.l.l. )b uifff_esra)t
i      s| f                                                     ^i
ed/usr/local/clang/include/absl/base/nullability.h
:      241| :        ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2geography/coverings.ccb:s2l:
_In file included from ns2geography/coverings.ho:n6n:
uIn file included from ls2geography/geography.hl: 4_:
NIn file included from o../src/s2/s2polygon.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h
:      45| :
                     ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, iIn file included from ns2geography/geography.ccs:e2r:
tIn file included from _s2geography/geography.ho:r4_:
aIn file included from s../src/s2/s2polygon.hs:i34g:
nIn file included from _../src/s2/mutable_s2shape_index.hi:m30p:
lIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :c66o:
nIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht:&70,:
 In file included from &/usr/local/clang/include/absl/container/internal/layout.h&:,198 :
tIn file included from r/usr/local/clang/include/absl/strings/str_cat.hu:e116,:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~23
:
/usr/local/clang/include/absl/strings/numbers.h  :158205 | : 5 :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat] 
      205  |          A B StLr_uIeN,T EARBNSALL__INNETEEDR_NMAILN__SSIINZGEL(Eb_uAfRfGe(r),) ;k
F      a| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
ToB/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:f135f:e11r:S inote: zexpanded from macro 'ABSL_INTERNAL_X'e
);
        | 135    ^ | 
  /usr/local/clang/include/absl/base/macros.h : 251 : 18 :   note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE't
hi  s251) | ) )  _A_BaStLt_rAiTbTuRtIeB_U_T(E(_dLiIaFgEnToIsMeE__iBfO(U_N_Db u{i l t i n _ o b j e c t _ s i z e ( O b j ,   0 )   <   N ,  \\

            | |           ^~~~                 ^

In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:
161      :| 52                     ^:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 | In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30f:
aIn file included from l/usr/local/clang/include/absl/container/btree_map.hs:e66,:
 In file included from A/usr/local/clang/include/absl/container/internal/btree.hB:S70L:
_In file included from I/usr/local/clang/include/absl/container/internal/layout.hN:T198E:
RIn file included from N/usr/local/clang/include/absl/strings/str_cat.hA:L116_:
SIn file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:G23L:
E/usr/local/clang/include/absl/strings/numbers.h_:A206R:G52(:) )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                    ^
  206 | /usr/local/clang/include/absl/container/internal/raw_hash_map.hc:h120a:r9*:  anote: bmacro 'ABSL_INTERNAL_X' defined heres
l_n  o120n | n#udlelf iFnaes tAIBIn file included from ns2geography/distance.ccSt:LT2o_:
BIIn file included from uNs2geography/distance.hfT:fE4eR:
rNIn file included from (As2geography/geography.hiL:_n4Xt:
1(In file included from 2F../src/s2/s2polygon.h8u: n32ic:
,,In file included from   ../src/s2/base/logging.hcC:ha21al:
rlIn file included from *e/usr/local/clang/include/absl/log/check.h e:a,37b s:
KlIn file included from _Q/usr/local/clang/include/absl/log/internal/check_impl.hun:oa21nl:
n,/usr/local/clang/include/absl/log/internal/check_op.h uV:lQ503ul: a1bl:u, f fwarning: eKrtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]V)

a      l|                                                      ^u503
e | /usr/local/clang/include/absl/base/nullability.h,A:B 241SV:LV22_a:Ll uOnote: Geexpanded from macro 'absl_nonnull'_,
 IT  Na241Ti | lE,# RdN.eAf.L.i_)nCe H \Ea
CbK      s_l| O_P        ^n_o
InMnPuLl(lC h_eNcokn_nNuEl,l 
!      =| )                     ^

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const In file included from cs2geography/geography.cch:a2r:
*In file included from  s2geography/geography.ha:b4s:
lIn file included from _../src/s2/s2polygon.hn:u34l:
lIn file included from a../src/s2/mutable_s2shape_index.hb:l30e:
 In file included from n/usr/local/clang/include/absl/container/btree_map.ha:m66e:
#In file included from #/usr/local/clang/include/absl/container/internal/btree.hI:m70p:
lIn file included from (/usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 207 : 5 :\ warning: 
'diagnose_if' is a clang extension [-Wgcc-compat]      
|                                ^
  207/usr/local/clang/include/absl/base/nullability.h | : 257 : 23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nNeE EaDb_sMlI_Nn_uSlIlZaEb(lbeu f_fNeurl,l akbFlaes
t      T| o                      ^/usr/local/clang/include/absl/container/internal/raw_hash_map.hB
u:f160f:e3r:1 2warning: 8In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]Ss2geography/distance.cci
:z2e:
)In file included from ;  s2geography/distance.h
160:       | 4 | :
     ^AIn file included from 
Bs2geography/geography.hS/usr/local/clang/include/absl/base/macros.h:L:4_251:
I:In file included from N18T../src/s2/s2polygon.h:E: R32note: N:
expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'AIn file included from 
L../src/s2/base/logging.h_:  X21251(:
 | iIn file included from  n/usr/local/clang/include/absl/log/check.hs :e_r37_t:
a_In file included from to/usr/local/clang/include/absl/log/internal/check_impl.hrt:r_ia21bs:
us/usr/local/clang/include/absl/log/internal/check_op.hti:eg503_n:_,1( :(i dnwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sa
gen/usr/local/clang/include/absl/log/internal/check_op.hor:st489e_:_o47ir:f_ (anote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's_
sbiu  gin489l_ | t ii nm _ po bl j,ceo cn&ts_&t,s i Tc1z&oe n(vOs1b,tj ,&c, o 0nf)sa tl< s TNe2,&, 
 \v
      2      ,| |                   ^  ^c

on/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:t133 :c52h:In file included from a s2geography/geography.ccrnote: :expanded from macro 'ABSL_INTERNAL_X'*2 
:
aIn file included from bs2geography/geography.h  s:l1334_ | :
n In file included from  o../src/s2/s2polygon.h n: n34 u:
 l In file included from l ../src/s2/mutable_s2shape_index.h  :e 30xA:
pBIn file included from rS/usr/local/clang/include/absl/container/btree_map.htL:e_66xI:
tNIn file included from )T/usr/local/clang/include/absl/container/internal/btree.h E:{R70 N A:
 LIn file included from _ /usr/local/clang/include/absl/container/internal/layout.h A:\T198
T:
      RIn file included from | I/usr/local/clang/include/absl/strings/str_cat.h                                              ^B:
U116T/usr/local/clang/include/absl/base/nullability.h:
E:In file included from _241C/usr/local/clang/include/absl/strings/internal/stringify_sink.hA::P22T23:U:
R /usr/local/clang/include/absl/strings/numbers.hEnote: :expanded from macro 'absl_nonnull'D208_
:B7Y  :(241t h | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]id
esf)  )i208n, | ec  ha a br s*l  _a nbo snl n_ unl oln   n_u Nlo ln  n Fua lsl t
I       n | t                     ^ T
 o B u f f\e
r      (| u                                                   ^i
nt1/usr/local/clang/include/absl/container/internal/common.h2:832 :i9,:  cnote: hmacro 'ABSL_INTERNAL_IF_false' defined herea
r*    a32b | s#ld_enfoinnneu lAlB SbLu_fIfNeTrE)R
N      A| L      ^_
IF/usr/local/clang/include/absl/base/nullability.h_:f241a:l22s:e (note: iexpanded from macro 'absl_nonnull'f
_s  a241t | i#sdfeifeidn,e  .a.b.s)In file included from l s2geography/distance.cc__:n_2oV:
nAIn file included from n_s2geography/distance.huA:lR4lG:
 SIn file included from __s2geography/geography.hN_:o
4n      :
n| In file included from u        ^../src/s2/s2polygon.hl
:l32
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:In file included from 21s2geography/coverings.cc:
In file included from :/usr/local/clang/include/absl/log/internal/check_op.hs2geography/geography.cc2:::
5032In file included from ::
s2geography/coverings.h1In file included from ::s2geography/geography.h6 ::
warning: 4type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from :

s2geography/geography.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2polygon.h4:::
49734In file included from ::
../src/s2/s2polygon.h32In file included from ::../src/s2/mutable_s2shape_index.h29 ::
note: 30In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
/usr/local/clang/include/absl/container/flat_hash_map.h
In file included from :/usr/local/clang/include/absl/container/btree_map.h45:  :
66497/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
 | :In file included from  160/usr/local/clang/include/absl/container/internal/btree.h ::i370n::
l In file included from iwarning: /usr/local/clang/include/absl/container/internal/layout.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n:
e198 :
c  In file included from o160/usr/local/clang/include/absl/strings/str_cat.hn | :s 116t :
eAIn file included from xB/usr/local/clang/include/absl/strings/internal/stringify_sink.hpS:rL23 _c:
I/usr/local/clang/include/absl/strings/numbers.hoN:nT208sE:tR53 N:cA hLwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_r
X*(   ian208sb | esclrht_an_rou*lr la_ababslsle_s nnioangmnn,eu# l#ilI nmFpsaelsr(t tI_ n ot r T _o Ba us f sf ieg r n( _uii mnp t l1,  2& &8\, 
i       ,c|  o                               ^ncs
hta/usr/local/clang/include/absl/base/nullability.hr&:*,257  :af23ba:sl lsnote: _expanded from macro 'absl_nullable'en
o,n
  n      257u|  | l#ld  ^ eb
fui/usr/local/clang/include/absl/container/internal/raw_hash_map.hfn:fee135 ra):b
s16      l:| _                                                     ^n
note: uexpanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.hl
l:a241b:  l22e135:  |   note: _expanded from macro 'absl_nonnull' N
u l   l 241 a |  b#ld ee
f       i | n                      ^te
 haibss)l)_In file included from )ns2geography/distance.cco :An2Bn:
SuIn file included from lLs2geography/distance.hl_: A4_T:
NTIn file included from oRs2geography/geography.hnI:nB4uU:
TlEIn file included from l_../src/s2/s2polygon.h
L:I      F32| E:
                     ^TIn file included from I
../src/s2/base/logging.hM:E21_:
BIn file included from O/usr/local/clang/include/absl/log/check.hU:N37D:
 In file included from {/usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 503 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 498In file included from  :s2geography/geography.cc 35: :2   note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' In file included from 
 s2geography/geography.h :   4498 :
 |  In file included from   ../src/s2/s2polygon.h  : \34
 :
       In file included from  | i               ^../src/s2/mutable_s2shape_index.hn
:t30 /usr/local/clang/include/absl/container/internal/common.h:
v:In file included from 132/usr/local/clang/include/absl/container/btree_map.h,:: 966i::
n In file included from tnote: /usr/local/clang/include/absl/container/internal/btree.hmacro 'ABSL_INTERNAL_IF_false' defined here :
v702:
   ,In file included from  32/usr/local/clang/include/absl/container/internal/layout.hc | :o#198dn:
seIn file included from fti/usr/local/clang/include/absl/strings/str_cat.hn :ce116h :
aAIn file included from rB/usr/local/clang/include/absl/strings/internal/stringify_sink.hS*L: _23aI:
bN/usr/local/clang/include/absl/strings/numbers.hTs:lE209_R:nN5AoL:n_ nIuwarning: l'diagnose_if' is a clang extension [-Wgcc-compat]Fl
 _ef  xa209pl | sr et e( x itAf)B _S{L s_ aI Nt iTs E fR iN Ae dL _,  N. E .E D. _) M  I\N_
__      SV| IA                                  ^Z_
AE/usr/local/clang/include/absl/base/nullability.h(R:bG241Su:_f22_f:
e r      note: ,expanded from macro 'absl_nonnull'|  
        ^k
  F241a | s#tdTeofBiunfef earb1s2l8_Snioznen)u;l
l       | _    ^N
on/usr/local/clang/include/absl/base/macros.hn:u251l:l18
:       | note:                      ^expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'

  251 |   __attribute__((diaIn file included from gnoses2geography/coverings.cc_:i2f:
(In file included from _s2geography/coverings.h_:b6u:
iIn file included from ls2geography/geography.ht:i4n:
_In file included from o../src/s2/s2polygon.hb:j29e:
cIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.h_:s45i:
z/usr/local/clang/include/absl/container/internal/raw_hash_map.he:(163O:b51j:,  warning: 0passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
 <   N163, |   \ 
        |                   ^ 
            true, AIn file included from Bs2geography/geography.ccS:L2_:
IIn file included from Ns2geography/geography.hT:E4R:
NIn file included from A../src/s2/s2polygon.hL:_34S:
IIn file included from N../src/s2/mutable_s2shape_index.hG:L30E:
_In file included from A/usr/local/clang/include/absl/container/btree_map.hR:G66(:
)In file included from )/usr/local/clang/include/absl/container/internal/btree.h;:
70      :
| In file included from                                                   ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h120::1169:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :macro 'ABSL_INTERNAL_X' defined here23
:
/usr/local/clang/include/absl/strings/numbers.h  :120215 | :#7d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e A  B215S | Lc_hIaNrT*E RaNbAsLl__Xn(oFnunnucl,l  CFaalslteIen,t TKoQBuuaflf,e rV(Qiunatl_,t yKpVea liu,e
,       | V      ^V
al/usr/local/clang/include/absl/base/nullability.hu:e241,: 22T:a inote: lexpanded from macro 'absl_nonnull',
 .  .241. | )# d\e
f      i| n        ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n162o:n3n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
_Non  n162u | l l 
A      B| S                     ^L
_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, cIn file included from os2geography/geography.ccn:s2t:
&In file included from ,s2geography/geography.h :f4a:
lIn file included from s../src/s2/s2polygon.he:,34
:
      In file included from | ../src/s2/mutable_s2shape_index.h  ^:
30:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/btree_map.h::13366::
52In file included from :/usr/local/clang/include/absl/container/internal/btree.h :note: 70expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198  :
133In file included from  | /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h :A217B:S5L:_ Iwarning: N'diagnose_if' is a clang extension [-Wgcc-compat]T
ERN  A217L | _ A T T RAIBBSULT_EI_NCTAEPRTNUARLE_DN_EBEYD(_tMhIiNs_)S)I,Z E ( 
        |      ^ 
  /usr/local/clang/include/absl/base/macros.h : 251 : 18 :   note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
      251  |      _\_
a      t| t                                                   ^r
ib/usr/local/clang/include/absl/container/internal/common.hu:t32e:_9_:( (note: dmacro 'ABSL_INTERNAL_IF_false' defined herei
agn   o32s | e#_dieff(i_n_eb uAiBlStLi_nI_NoTbEjReNcAtL__sIiFz_ef(aOlbsje,( i0f)_ s<a tNi,s f\i
e      d| ,                 ^ 
...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSIn file included from Ls2geography/geography.cc_:I2N:
TIn file included from Es2geography/geography.hR:N4A:
LIn file included from _../src/s2/s2polygon.hI:F34_:
tIn file included from r../src/s2/mutable_s2shape_index.hu:e30(:
iIn file included from f/usr/local/clang/include/absl/container/btree_map.h_:s66a:
tIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:f70i:
eIn file included from d/usr/local/clang/include/absl/container/internal/layout.h,: 198.:
.In file included from ./usr/local/clang/include/absl/strings/str_cat.h): 116i:
fIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:a23t:
i/usr/local/clang/include/absl/strings/numbers.hs:f247i:e47d:
       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  247 |              In file included from  s2geography/coverings.cc : 2 :
 In file included from  s2geography/coverings.h : 6 :
 In file included from  s2geography/geography.h : 4 :
 In file included from ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 45 :
i/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:t162_:t3y:p ewarning: *'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
absl_n  o162n | n u lAlB SoLu_tI,N TiEnRtN AbLa_sXe()i n{s
e      r| t                                              ^_
or_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n ,note:  expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns_li_mnpoln,n u&l&l,  _cNoonnsntu&l,l 
f      a| l                     ^s
e,In file included from 
s2geography/distance.cc      :| 2  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from s2geography/distance.h:  4163:
 | In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37t:
rIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.he:,21 :
AB/usr/local/clang/include/absl/log/internal/check_op.hS:L504_:I1N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL_  S504I | NAGBLSEL__ALROGG(_)I)N;T
E      R| N                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A
L_C/usr/local/clang/include/absl/container/internal/raw_hash_map.hH:E135C:K11_:O Pnote: _expanded from macro 'ABSL_INTERNAL_X'I
MPL(  C135h | e c k _ L E ,   < = )t
h      i| s^)
)) /usr/local/clang/include/absl/log/internal/check_op.hA:B488S:L32_:A Tnote: Texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'R
IBU  T488E | _ L IiFnElTiInMeE _cBoOnUsNtDe x{p r   c o n s t   c h a r *   a b s l _ n u l l a b l e   n a\m
e      #| #          ^~~~I
mpl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1&/usr/local/clang/include/absl/container/internal/raw_hash_map.h :v1651:,52 :c owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
t T  2165& |   v 2 ,   c o n s t   c h a r *   a bfsall_sneo,n nAuBlSlL _eIxNpTrEtReNxAtL)_ SIn file included from {Is2geography/geography.cc N: G2 L:
 EIn file included from  _s2geography/geography.h\A:
R4      G:
| (In file included from                                               ^)../src/s2/s2polygon.h
):;34
/usr/local/clang/include/absl/base/nullability.h:
      :In file included from | 241                                                   ^../src/s2/mutable_s2shape_index.h:
:2230:/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
 :note: In file included from 120expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/btree_map.h:
:966  ::
241 In file included from note:  | macro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/container/internal/btree.h#
:d70e:
  fIn file included from 120i/usr/local/clang/include/absl/container/internal/layout.h | n#:ed198 e:
faIn file included from bi/usr/local/clang/include/absl/strings/str_cat.hsn:le116_ :
nAIn file included from oB/usr/local/clang/include/absl/strings/internal/stringify_sink.hnS:nL23u_:
lI/usr/local/clang/include/absl/strings/numbers.hlN:T E303_R:NN60oA:nL n_warning: uXtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](l
lF
u      n  | c303                     ^, | 
i nClailnlee es,i zKeQ_uta lF,a sVtQHueaxlT,o BKuVfafleureZ,e rVoVPaaldu1e6,( uTianitl6,4 _.t. .v)a l\,
       c| h        ^a
r* absl_nonnulIn file included from ls2geography/distance.cc :o2u:
tIn file included from )s2geography/distance.h :{4
:
      In file included from | s2geography/geography.h                                                           ^:
4:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h::32241:
:In file included from 22../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i504n:e1 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/log/internal/check_op.ho:n497n:u32l:l  note: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
onnu  l497l | 
        | i                     ^n
line constexpr const char* absl_nullable name##Impl(      /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 164 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      \164
 |        |                                 ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_257I:N23T:E Rnote: Nexpanded from macro 'absl_nullable'A
L_  X257( | i#ndseefritn_eo ra_bassls_ingunl,l aibnlsee r_tN_uolrl_aabslsei
g      n| _                      ^i
mpl, &&, In file included from cs2geography/distance.cco:n2s:
tIn file included from &s2geography/distance.h,: 4t:
rIn file included from us2geography/geography.he:,4
:
      In file included from | ../src/s2/s2polygon.h  ^:In file included from 
32s2geography/geography.cc:
:/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from 2:../src/s2/base/logging.h:
133:In file included from :21s2geography/geography.h52:
::In file included from 4 /usr/local/clang/include/absl/log/check.h:
note: :In file included from expanded from macro 'ABSL_INTERNAL_X'37../src/s2/s2polygon.h
:
:In file included from 34/usr/local/clang/include/absl/log/internal/check_impl.h  :
:133In file included from 21 | ../src/s2/mutable_s2shape_index.h:
 /usr/local/clang/include/absl/log/internal/check_op.h: :30 504:
 :In file included from  1/usr/local/clang/include/absl/container/btree_map.h ::  66 warning: :
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from  
/usr/local/clang/include/absl/container/internal/btree.hA/usr/local/clang/include/absl/log/internal/check_op.h:B:70S498:
L:In file included from _35/usr/local/clang/include/absl/container/internal/layout.hI::N 198Tnote: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'EIn file included from 
R/usr/local/clang/include/absl/strings/str_cat.hN  :A498116L | :
_ In file included from  A/usr/local/clang/include/absl/strings/internal/stringify_sink.h T: T23R I:
B /usr/local/clang/include/absl/strings/numbers.hUi:nT330tE: _41vC:A1 ,Pwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] U
iRnE  Dt330 _ | v B2 Y,  ( c to nh s it  s c h )a r) * ,  a  b s  l _  n  o n  n  u l  l    e  xip nrt t _et xyt p)e  *{   a  b  s l  _  n o  n  n u  l  l    o  u \t 
)\       
{|                                                          ^
| 
                                        ^| 
/usr/local/clang/include/absl/container/internal/common.h                                        ^/usr/local/clang/include/absl/base/nullability.h:
:31241:/usr/local/clang/include/absl/base/nullability.h:9:22:241: : note: 22note: macro 'ABSL_INTERNAL_IF_true' defined here:expanded from macro 'absl_nonnull'
 
note:    expanded from macro 'absl_nonnull'  31
241 |  |   ##241dd | eef#fdiiennfeie n aebA saBlb_SsnlLo__nnnIounNlnlTu lE_lRN oN_nNAnoLun_lnlIu
lF      l_| t
                     ^r      
u| e                     ^(
if_satisfied, ...) if_satisfied
      |         ^
In file included from In file included from s2geography/geography.ccs2geography/coverings.cc::22:
:
In file included from In file included from s2geography/geography.hs2geography/coverings.h::46:
:
In file included from In file included from ../src/s2/s2polygon.hs2geography/geography.h::344:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2polygon.h::3029:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/flat_hash_map.h::6645:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/internal/btree.h::16470::
3In file included from :/usr/local/clang/include/absl/container/internal/layout.h :warning: 198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h  :164335 | : 52 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_INT  E335R | N A L _ X ( i n s e r t _ o r _ a s s i g n ,   i n s e r t _ o r _ a s s iagbns_li:m:piln,t 1&2&8,*  caobnsslt_&n,o ntnruulel, out)
       {| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                                                    ^
  165 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f ifnael saeb,s lA_BnSoLn_nIuNlTlE R_NNAoLn_nSuIlNlG
L      E| _                     ^A
RG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),  In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
\In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                                              ^~~~:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::116164:
:In file included from 3/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23:
warning: /usr/local/clang/include/absl/strings/numbers.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
340:/usr/local/clang/include/absl/container/internal/raw_hash_map.h53::135 :warning: 16type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_INTERNAL_X'
  340 |     135  |                      t h i s ) ) )   A B S L _ A T T R I B U T E _ LaIbFsElT:I:MuEi_nBtO1U2N8D*  {a b s l _ n o n n u l l   o u t )   { 
        |                                                      ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       note: | expanded from macro 'absl_nonnull'               ^

  /usr/local/clang/include/absl/container/internal/common.h241: | 32#:d9e:f inote: nmacro 'ABSL_INTERNAL_IF_false' defined heree
    a32b | s#ld_enfoinnneu lAlB S_LN_oInNnTuElRlN
A      L| _                     ^I
F_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
In file included from       s2geography/coverings.cc| :                                           ^2
:
In file included from s2geography/coverings.h/usr/local/clang/include/absl/base/nullability.h::6241:
:In file included from 22s2geography/geography.h:: 4note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2polygon.h:29  :
241In file included from  | /usr/local/clang/include/absl/container/flat_hash_map.h#:d45e:
f/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:n167e: 51a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
non  n167u | l l   _ N o n n u l l 
        |                       ^ 
   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9:In file included from  s2geography/geography.ccnote: :macro 'ABSL_INTERNAL_X' defined here2
:
In file included from s2geography/geography.h:  4120:
 | In file included from #../src/s2/s2polygon.hd:e34f:
iIn file included from n../src/s2/mutable_s2shape_index.he: 30A:
BIn file included from S/usr/local/clang/include/absl/container/btree_map.hL:_66I:
NIn file included from T/usr/local/clang/include/absl/container/internal/btree.hE:R70N:
AIn file included from L/usr/local/clang/include/absl/container/internal/layout.h_:X198(:
FIn file included from u/usr/local/clang/include/absl/strings/str_cat.hn:c116,:
 In file included from C/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:l23l:
e/usr/local/clang/include/absl/strings/numbers.he:,351 :K55Q:u awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 VQu  a351l | ,   K V a l u e ,   V V a l u e ,   T a i l ,   . . . )   \ 
        |          ^ 
      absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2geography/geography.cc166: | 2 :
 In file included from As2geography/geography.hB:S4L:
_In file included from I../src/s2/s2polygon.hN:T34E:
RIn file included from N../src/s2/mutable_s2shape_index.hA:L30_:
XIn file included from (/usr/local/clang/include/absl/container/btree_map.hi:n66s:
eIn file included from r/usr/local/clang/include/absl/container/internal/btree.ht:_70o:
rIn file included from _/usr/local/clang/include/absl/container/internal/layout.ha:s198s:
iIn file included from g/usr/local/clang/include/absl/strings/str_cat.hn:,116 :
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:e23r:
t/usr/local/clang/include/absl/strings/numbers.h_:o356r:_56a:s swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
n_im  p356l | ,   & & ,   c o n s t & ,   t r u e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 133 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      133  |   a b s l : : u i n tA1B2S8L*_ IaNbTsElR_NnAoLn_nAuTlTlR IoBuUtT)E _{C
A      P| T                                                       ^U
RE/usr/local/clang/include/absl/base/nullability.hD:_241B:Y22(:t hnote: iexpanded from macro 'absl_nonnull's
))  ,241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n\n
u      l| l                                                   ^

      | /usr/local/clang/include/absl/container/internal/common.h                     ^:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/log/internal/check_op.h::169505::31::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

    169505 |  |  A BASBLS_LL_OIGN_TIENRTNEARLN_AXL(_iCnHsEeCrKt__OoPr__IaMsPsLi(gCnh,e cikn_sLeTr,t _<o)r
_      a| s^s
ig/usr/local/clang/include/absl/log/internal/check_op.hn:_488i:m32p:l ,note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'&
&,   &488& | ,   fianllsien,e  fcaolnsset,e
x      p| r  ^ 
const /usr/local/clang/include/absl/container/internal/raw_hash_map.hc:h133a:r52*:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  u133l | l a b l e   n a m e #A#BISmLp_lI(N T E R N A L _ A T T R I B U T E _ C A\P
T      U| R                               ^E
D_/usr/local/clang/include/absl/base/nullability.hB:Y257(:t23h:i snote: )expanded from macro 'absl_nullable')
,    257  |  # d e f i n e   a b s l _ n u l l a b l e   _\N
u      l| l                                                   ^a
bl/usr/local/clang/include/absl/container/internal/common.he:
32      :| 9                      ^:
 note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #defineIn file included from  s2geography/distance.ccA:B2S:
LIn file included from _s2geography/distance.hI:N4T:
EIn file included from Rs2geography/geography.hN:A4L:
_In file included from I../src/s2/s2polygon.hF:_32f:
aIn file included from l../src/s2/base/logging.hs:e21(:
iIn file included from f/usr/local/clang/include/absl/log/check.h_:s37a:
tIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hs:f21i:
e/usr/local/clang/include/absl/log/internal/check_op.hd:,505 :.1.:. )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
_V/usr/local/clang/include/absl/log/internal/check_op.hA:_489A:R47G:S _note: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

      |         ^
  489 |       cIn file included from os2geography/coverings.ccn:s2t:
 In file included from Ts2geography/coverings.h1:&6 :
vIn file included from 1s2geography/geography.h,: 4c:
oIn file included from n../src/s2/s2polygon.hs:t29 :
TIn file included from 2/usr/local/clang/include/absl/container/flat_hash_map.h&: 45v:
2/usr/local/clang/include/absl/container/internal/raw_hash_map.h,: 169c:o3n:s twarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
har  *169  | a b sAlB_SnLo_nInNuTlElR NeAxLp_rXt(eixnts)e r{t _ o r _ a\s
s      i| g                                              ^n
, /usr/local/clang/include/absl/base/nullability.hi:nIn file included from 241ss2geography/geography.cc:e:22r2:t:
 _In file included from onote: s2geography/geography.hexpanded from macro 'absl_nonnull'r:
_4  a:
241sIn file included from s | ../src/s2/s2polygon.h#i:dg34ne:
_fIn file included from ii../src/s2/mutable_s2shape_index.hnm:ep30l :
,a In file included from b&/usr/local/clang/include/absl/container/btree_map.h&s:l,66 _&:
&n,In file included from  of/usr/local/clang/include/absl/container/internal/btree.hna:nl70su:
elIn file included from l,/usr/local/clang/include/absl/container/internal/layout.h  :f_198Na:
lo/usr/local/clang/include/absl/strings/str_cat.hsn:en223,u:
l25      l:
|          ^warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
                     ^

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:  16223: |   note:  expanded from macro 'ABSL_INTERNAL_X'e
xpl  i135c | i t   He x ( P o i n ttehei*s )a)b)s lA_BnSuLl_lAaTbTlReI BvU,T EP_aLdISFpEeTcI MsEp_eBcO U=N Da b{In file included from s s2geography/distance.ccl :: 2: :
k In file included from N s2geography/distance.ho :P 4 a :
d In file included from ) s2geography/geography.h
 :       4|  :
                        ^ In file included from 
 ../src/s2/s2polygon.h :/usr/local/clang/include/absl/base/nullability.h 32: :
 257 In file included from : ../src/s2/base/logging.h23 :: 21  :
 note: In file included from expanded from macro 'absl_nullable' /usr/local/clang/include/absl/log/check.h
 :   37\257
:
 |       In file included from #| /usr/local/clang/include/absl/log/internal/check_impl.h               ^d:e
21f:
/usr/local/clang/include/absl/container/internal/common.hi/usr/local/clang/include/absl/log/internal/check_op.h:n:32e505 ::a91b::s  lnote: _warning: macro 'ABSL_INTERNAL_IF_false' defined herentype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u

ll   /usr/local/clang/include/absl/log/internal/check_op.ha32:b | 497l#:ed32 e:_f Ninote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'nl
lea b  Al497Be | 
 S       L| i                      ^_n
lIiNnTeE RcNoAnLs_tIeFx_pfra lcsoen(sitf _cshaatri*s faibesdl,_ n.u.l.l)a b_l_eV An_aAmReG#S#_I_m
p      l| (        ^ 
                  \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nIn file included from us2geography/coverings.ccl:l2a:
bIn file included from ls2geography/coverings.he: 6_:
NIn file included from us2geography/geography.hl:l4a:
bIn file included from l../src/s2/s2polygon.he:
29      :
| In file included from                       ^/usr/local/clang/include/absl/container/flat_hash_map.h
:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: In file included from warning: s2geography/distance.ccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
2:
In file included from s2geography/distance.h  :1724 | :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:I21N:
T/usr/local/clang/include/absl/log/internal/check_op.hE:R505N:A1L:_ Swarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
GL/usr/local/clang/include/absl/log/internal/check_op.hE:_498A:R35G:( )note: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL';

      |                                             ^  
498 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 120 : 9 :  inote: nmacro 'ABSL_INTERNAL_X' defined heret
 v1  ,120  | i#ndte fvi2n,e  cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_Fnuonncn,u lCla lelxeper,t eKxQtu)a l{,   V Q u a l ,   K V a l u e ,   V\V
a      l| u                                  ^e
, /usr/local/clang/include/absl/base/nullability.hT:a241i:l22,:  .note: .expanded from macro 'absl_nonnull'.
)   \241
 |       #| d        ^e
fine absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insertIn file included from _s2geography/distance.cco:r2_:
aIn file included from ss2geography/distance.hs:i4g:
nIn file included from _s2geography/geography.hi:m4p:
lIn file included from ,../src/s2/s2polygon.h :&32&:
,In file included from  ../src/s2/base/logging.h&:&21,:
 In file included from t/usr/local/clang/include/absl/log/check.hr:u37e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hf:a21l:
s/usr/local/clang/include/absl/log/internal/check_op.he:,506
:      1| :  ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:133:52:   506 | note: Aexpanded from macro 'ABSL_INTERNAL_X'B
SL_  L133O | G _ I N T E R N A L _ACBHSEIn file included from LCs2geography/geography.cc_K:I_NO2PT:
_EIRIn file included from MNPs2geography/geography.hAL:(L4_C:
hAIn file included from eT../src/s2/s2polygon.hcT:kR34_I:
GBIn file included from EU../src/s2/mutable_s2shape_index.h,T: E30_>:
C=In file included from )A/usr/local/clang/include/absl/container/btree_map.h
P:T      U66R| :
E^In file included from D
/usr/local/clang/include/absl/container/internal/btree.h_:/usr/local/clang/include/absl/log/internal/check_op.hB70:Y:
(488In file included from t:/usr/local/clang/include/absl/container/internal/layout.hh32:i:198s :
)note: /usr/local/clang/include/absl/strings/str_cat.h)expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL',:
 398 :   24 488 : |     warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i 
n l i  n 398e  |    c  o An l sp th eax Np urm  (c co onn ss\tt 
 c      chh| a                                                   ^arr
**  /usr/local/clang/include/absl/container/internal/common.haab:bs31sll:__n9nuu:lll lanote: amacro 'ABSL_INTERNAL_IF_true' defined herebbl
lee     n31ca_mse | t#r## Id m/ep/fl i(N nO L eI  AN TB (S Lr _u In tN iT mE e R/ Ne xA p Ll i_\c
Ii      tF| )                               ^_

t      r| u                       ^e/usr/local/clang/include/absl/base/nullability.h
(:i257/usr/local/clang/include/absl/base/nullability.hf:_:23s257a::t inote: 23sexpanded from macro 'absl_nullable':f
i   e257dnote:  | ,expanded from macro 'absl_nullable'# 
d.e.f  i.257n) | e#  daiebffsi_lns_aen tuialsblsfalbi_leneud 
l_l      Nau| bll        ^lea
 b_lNeu
l      l| a                      ^b
le
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from In file included from s2geography/coverings.hs2geography/distance.cc::62:
:
In file included from In file included from s2geography/geography.hs2geography/distance.h::44:
:
In file included from In file included from ../src/s2/s2polygon.hs2geography/geography.h::294:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2polygon.h::4532:
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/base/logging.h173::213:
:In file included from  /usr/local/clang/include/absl/log/check.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :173506 | : 1 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_I/usr/local/clang/include/absl/log/internal/check_op.hN:T489E:R47N:A Lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'X
(in  s489e | r t _ o r _ acsosnisgtn ,T 1i&n sve1r,t _coorn_sats sTi2g&n _vi2m,p lc,o n&s&t,  c&h&a,r *t raubes,l _fnaolnsneu,In file included from l
ls2geography/geography.cc       :e| 2x  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
p
In file included from rs2geography/geography.h  t:e1744x | :
t In file included from ) ../src/s2/s2polygon.h  : {34  :
  In file included from   ../src/s2/mutable_s2shape_index.h   :  30\ :

 In file included from        /usr/local/clang/include/absl/container/btree_map.h|  :                                              ^ 66
 :
 /usr/local/clang/include/absl/base/nullability.hIn file included from  :/usr/local/clang/include/absl/container/internal/btree.hA241:B:70S22:
L:In file included from _ /usr/local/clang/include/absl/container/internal/layout.hInote: :expanded from macro 'absl_nonnull'N198
T:
E  R/usr/local/clang/include/absl/strings/str_cat.h241N: | A431#L:_d15eS:fI Nwarning: iGtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nL
eE _a  bA431sR | l G_ n(co)onn)ns;utl
 lc       h_| aNr                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~o*n na
ublsll/usr/local/clang/include/absl/container/internal/raw_hash_map.h
_:      n133| u                     ^:l
47l:a bnote: lexpanded from macro 'ABSL_INTERNAL_X'e
 da  t133a | ( )   c o n s t   {  ArBeStLu_rInN TpEiReNcAeL__.AdTaTtRaI(B)U;T E}_
C      A| P              ^T
URE/usr/local/clang/include/absl/base/nullability.hD:_257B:Y23(:t hnote: iexpanded from macro 'absl_nullable's
))  ,257  | In file included from  #s2geography/distance.ccd :e 2f :
i In file included from  n s2geography/distance.he :  4a :
b In file included from s s2geography/geography.hl :_ 4n :
u In file included from l ../src/s2/s2polygon.hl :a 32b :
l In file included from e ../src/s2/base/logging.h  : _21 N:
u\In file included from l
/usr/local/clang/include/absl/log/check.hl      :a| 37                                              ^~~~b:
l
In file included from e/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:/usr/local/clang/include/absl/container/internal/raw_hash_map.h506::1731::3 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::497135::3216::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'ABSL_INTERNAL_X'

    497135 |  |     i n l i n e   c otnhsitse)x)p)r  AcBoSnLs_tA TcThRaIrB*U TaEb_sLlI_FnEuTlIlMaEb_lBeO UnNaDm e{# # I m p l (                                       \ 
        |                                 ^\

      | /usr/local/clang/include/absl/base/nullability.h               ^:
257:23/usr/local/clang/include/absl/container/internal/common.h:: 32note: :expanded from macro 'absl_nullable'9
:   note: 257macro 'ABSL_INTERNAL_IF_false' defined here | 
#de   f32i | n#ed eafbisnle_ nAuBlSlLa_bIlNeT E_RNNuAlLl_aIbFl_ef
a      l| s                      ^e
(if_sIn file included from as2geography/distance.cct:i2s:
fIn file included from is2geography/distance.he:d4,:
 In file included from .s2geography/geography.h.:.4):
 In file included from _../src/s2/s2polygon.h_:V32A:
_In file included from A../src/s2/base/logging.hR:G21S:
_In file included from _/usr/local/clang/include/absl/log/check.h
:      37| :
        ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2geography/coverings.cc
:      2| :
                     ^In file included from 
s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable nam/usr/local/clang/include/absl/container/internal/raw_hash_map.he:#178#:I3m:p lwarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       178  |      A B S L _ I N T E R\N
A      L| _                               ^X
(i/usr/local/clang/include/absl/base/nullability.hn:s257e:r23t:_ onote: rexpanded from macro 'absl_nullable'_
as  s257i | g#nd,e fiinnsee ratb_solr__nauslsliagbnl_ei m_pNlu,l lcaobnlset
&      ,|                        ^c
onst&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :s2geography/distance.cc133::252:
:In file included from  s2geography/distance.hnote: :expanded from macro 'ABSL_INTERNAL_X'4
:
In file included from s2geography/geography.h:  4133:
 | In file included from  ../src/s2/s2polygon.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:A507L:_1A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BU/usr/local/clang/include/absl/log/internal/check_op.hT:E489_:C47A:P Tnote: Uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'R
ED_  B489Y | ( t h i s ) )c,o n s t   T 1 &   v 1 ,   c o n s t   T 2 &   v 2 ,  \c
o      n| s                                                   ^t
 c/usr/local/clang/include/absl/container/internal/common.hh:a32r:*9 :a bnote: smacro 'ABSL_INTERNAL_IF_false' defined herel
_no   n32n | u#ldle feixnper tAeBxStL)_ I{N T E R N A\L
_      I| F                                              ^_
fa/usr/local/clang/include/absl/base/nullability.hl:s241e:(22i:f _note: sexpanded from macro 'absl_nonnull'a
ti  s241f | i#edde,f i.n.e. )a b_s_lV_An_oAnRnGuSl_l_ 
_      N| o        ^n
null
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: In file included from note: s2geography/distance.ccexpanded from macro 'ABSL_INTERNAL_X':
2:
In file included from s2geography/distance.h  :1354 | :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 32 :
tIn file included from h../src/s2/base/logging.hi:s21):
)In file included from )/usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:A21T:
T/usr/local/clang/include/absl/log/internal/check_op.hR:I507B:U1T:E _warning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
FE/usr/local/clang/include/absl/log/internal/check_op.hT:I497M:E32_:B Onote: Uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
D {    497  |      i n l i n e   c o n s t e x p r   c o n s t   c h\a
r      *|                 ^a
bs/usr/local/clang/include/absl/container/internal/common.hl:_32n:u9l:l anote: bmacro 'ABSL_INTERNAL_IF_false' defined herel
e    n32a | m#ed#e#fIimnpel (A B S L _ I N T E R N A L _ I F _ f a l\s
e      (| i                               ^f
_s/usr/local/clang/include/absl/base/nullability.ha:t257i:s23f:i enote: dexpanded from macro 'absl_nullable',
 .  .257. | )# d_e_fViAn_eA RaGbSs_l__
n      u| l        ^l
able _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(In file included from ts2geography/geography.cch:i2s:
)In file included from )s2geography/geography.h,: 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198\:

      /usr/local/clang/include/absl/strings/str_cat.h| :                                                   ^501
:32:/usr/local/clang/include/absl/container/internal/common.h :32warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]9
: note:   macro 'ABSL_INTERNAL_IF_false' defined here501
 | v   o32i | d# dAepfpienned PAiBeScLe_sI(NsTtEdR:N:AsLt_rIiFn_gf*a lasbes(li_fn_osnantuilslf ideeds,t ,.
.      .| )                               ^ 
__V/usr/local/clang/include/absl/base/nullability.hA:_241A:R22G:S _note: _expanded from macro 'absl_nonnull'

      |         ^  
241 | #define In file included from as2geography/coverings.ccb:s2l:
_In file included from ns2geography/coverings.ho:n6n:
uIn file included from ls2geography/geography.hl: 4_:
NIn file included from o../src/s2/s2polygon.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h
:      45| :
                     ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           thIn file included from is2geography/linear-referencing.ccs:)2):
)In file included from  s2geography/linear-referencing.hA:B4S:
LIn file included from _s2geography/geography.hA:T4T:
RIn file included from I../src/s2/s2polygon.hB:U29T:
EIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hL:I43F:
EIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hI:M19E:
_In file included from B/usr/local/clang/include/absl/container/internal/hash_function_defaults.hO:U59N:
DIn file included from  /usr/local/clang/include/absl/strings/cord.h{: 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 In file included from  /usr/local/clang/include/absl/strings/str_format.h : 84 :
 In file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 29 :
  /usr/local/clang/include/absl/strings/internal/str_format/parser.h : 227 : 11 :  \warning: 
'enable_if' is a clang extension [-Wgcc-compat]      
|           ^~~~
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_In file included from Cs2geography/distance.ccA:P2T:
UIn file included from Rs2geography/distance.hE:D4_:
BIn file included from Ys2geography/geography.h(:t4h:
iIn file included from s../src/s2/s2polygon.h):)32,:
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h : 511 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
\
      |                                                      ^511
 | c/usr/local/clang/include/absl/container/internal/common.ho:nIn file included from 31ss2geography/geography.cct:: 92c::
h In file included from anote: s2geography/geography.hmacro 'ABSL_INTERNAL_IF_true' defined herer:*
4 :
aIn file included from b   ../src/s2/s2polygon.hs31:l | 34#_:
ndIn file included from ue../src/s2/mutable_s2shape_index.hlf:li30an:
beIn file included from  l/usr/local/clang/include/absl/container/btree_map.hAeB: S66CL:
h_In file included from eI/usr/local/clang/include/absl/container/internal/btree.hcN:kT70EsRt:
NrIn file included from cA/usr/local/clang/include/absl/container/internal/layout.hmL:p_198tI:
rF/usr/local/clang/include/absl/strings/str_cat.hu_:et635Ir:mu36ep(:li (fwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_      
s| a            ^  t
i635s | /usr/local/clang/include/absl/base/nullability.hif:ine257ld:i,23n :e.  .note: vexpanded from macro 'absl_nullable'.o
)i   di257 f | S#_tsdraeAftpiipsnfeien edad(
bs      st| ld_        ^:n
:usltlraibnlge*  _aNbuslll_anbIn file included from olnes2geography/coverings.ccn
:u      l2| l:
                      ^)In file included from 
 s2geography/coverings.h{:}6
:
In file included from       In file included from s2geography/distance.cc| s2geography/geography.h:                                   ^:2
4:
:
In file included from /usr/local/clang/include/absl/base/nullability.hIn file included from s2geography/distance.h:../src/s2/s2polygon.h:241:4:29:
22:
In file included from :In file included from s2geography/geography.h /usr/local/clang/include/absl/container/flat_hash_map.h:note: :4expanded from macro 'absl_nonnull'45:

:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h  ../src/s2/s2polygon.h:241:182 | 32#::
d3In file included from e:../src/s2/base/logging.hf :iwarning: 21n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
e
In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
  lIn file included from 182_/usr/local/clang/include/absl/log/internal/check_impl.hn | :o 21n :
nA/usr/local/clang/include/absl/log/internal/check_op.hBu:Sl512Ll: _17_I:NN oTwarning: nEtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nR
uNlA  lL512
_ |        X|                       ^( 
i ncsoenrstt_ ocrh_aars*s iagbns,l _innusIn file included from les2geography/geography.cclr:at2b_:
loIn file included from res2geography/geography.h_ :sa41s:
,sIn file included from  i../src/s2/s2polygon.hgc:no34_n:
isIn file included from tm../src/s2/mutable_s2shape_index.h p:lc30h,:
a In file included from rc/usr/local/clang/include/absl/container/btree_map.hIn file included from *o:s2geography/linear-referencing.cc n66:as:
2btIn file included from :
s&/usr/local/clang/include/absl/container/internal/btree.hIn file included from l,:s2geography/linear-referencing.h_ 70:nc:
o4uIn file included from ln:
/usr/local/clang/include/absl/container/internal/layout.hlsIn file included from :ats2geography/geography.h198b&::
l,4 /usr/local/clang/include/absl/strings/str_cat.he:
 t:In file included from sr636../src/s2/s2polygon.h2u::,e2929
,::
      
 In file included from |       warning: /usr/local/clang/include/absl/container/flat_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                ^| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

43
:
/usr/local/clang/include/absl/base/nullability.hIn file included from   :/usr/local/clang/include/absl/container/hash_container_defaults.h  636257:183 | :v19o | 23 :
i:d In file included from    /usr/local/clang/include/absl/container/internal/hash_function_defaults.hnote: Sexpanded from macro 'absl_nullable' :t
 59r   :
A 257In file included from p  |  /usr/local/clang/include/absl/strings/cord.hp#e :dne 82df( :
isn In file included from ted  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:a : :b23s s:
l tIn file included from _fr/usr/local/clang/include/absl/crc/crc32c.hinna:lug32*sl:
 elIn file included from a,a/usr/local/clang/include/absl/strings/str_format.hb b:s.l84lfe:
 _i_/usr/local/clang/include/absl/strings/internal/str_format/bind.hnrN:osut143nln,: lu11lca:lob  nlwarning: dse'enable_if' is a clang extension [-Wgcc-compat]et

s_      ti|   ,t                      ^e143 
cr | oa n ts In file included from ot s2geography/distance.cc r :A l 2 p A:
h aBIn file included from  NeSs2geography/distance.hunmL:a&_4b lI:
ae)NIn file included from _;iTs2geography/geography.h
fE:      (R4| s                            ^N:
t
rAIn file included from _L/usr/local/clang/include/absl/base/nullability.h../src/s2/s2polygon.hf_::oC24132rO::
mM22In file included from aMt:../src/s2/base/logging.hA_ :)i;21note: nexpanded from macro 'absl_nonnull'
:
t
e        In file included from r| 241/usr/local/clang/include/absl/log/check.hn                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | :#ad
37le:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:In file included from f::/usr/local/clang/include/absl/log/internal/check_impl.hEin133:nse:21u 47:
rae:/usr/local/clang/include/absl/log/internal/check_op.hbCs :olnnote: 512expanded from macro 'ABSL_INTERNAL_X'_s:t
n47oe:nxn   pur133warning: l(l | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] s 
_ )N    ,o512n   | n  "u l c  lo
  n      s c| t                     ^Aoe
xBnpsSrLt _ tIcNrhaTapErR"In file included from *N)As2geography/geography.cc ,aL:_
Ab2s      lT:
| _TIn file included from           ^nRs2geography/geography.hI
u:lB4lU:
aTIn file included from bE../src/s2/s2polygon.h_l:eC34 A:
sPIn file included from 1T../src/s2/mutable_s2shape_index.h,U:R E30cD:
o_In file included from BnY/usr/local/clang/include/absl/container/btree_map.hs(:tt66 h:
ci/usr/local/clang/include/absl/strings/internal/str_format/bind.hIn file included from hs:/usr/local/clang/include/absl/container/internal/btree.ha)149):r:,70*22 :
 :a In file included from  b /usr/local/clang/include/absl/container/internal/layout.hwarning: s'enable_if' is a clang extension [-Wgcc-compat] :l
_ 198 n:
   u/usr/local/clang/include/absl/strings/str_cat.h149 l : | l 637 a  : b l e 29    : _ s  _2a warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
t 
      t | r                                              ^   i
b /usr/local/clang/include/absl/base/nullability.h 637u:  |  t257v e\:o_
23i_d      :( (|                                                ^~~~Setnranote: b
Aexpanded from macro 'absl_nullable'pl
pee_  ni257df | ((ss/usr/local/clang/include/absl/container/internal/raw_hash_map.h#tdrt_d:ef:o182f:ir:sntermi3 aatn:b_gi s*l nwarning: _anbtspassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]uelr
l_lna/usr/local/clang/include/absl/container/internal/raw_hash_map.hnaolb:n:n:l135uEen:l s_16lu rdeNC:eusot ln,snote: l tcexpanded from macro 'ABSL_INTERNAL_X'aebxlpor
en(
sst) ,        A
l| p                      ^135      h
 | | a                     ^ N
uIn file included from  ms2geography/distance.cc &:  2a :
, In file included from 
 s2geography/distance.h       :|  4                            ^ :

tIn file included from hs2geography/geography.h/usr/local/clang/include/absl/base/nullability.hi::s4241)/usr/local/clang/include/absl/strings/internal/str_format/bind.h:
:):In file included from 22)158../src/s2/s2polygon.h: :: A2232note: Bexpanded from macro 'absl_nonnull'S::

L In file included from   _../src/s2/base/logging.hwarning: 241'enable_if' is a clang extension [-Wgcc-compat]A: | 
#T21dT:
  eRIn file included from 158fI/usr/local/clang/include/absl/log/check.hB | i:nU 37 e T:
  EIn file included from a b_/usr/local/clang/include/absl/log/internal/check_impl.h s_L:l__I21anF:
totE/usr/local/clang/include/absl/log/internal/check_op.hnrnT:iubI513lulM:t eE17__N_:_o(B n(nOwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nuU
Na  bllD513le
  | _ i f        {(| c V                     ^aol 
ni sd tF  ocr hm aar t*I  In file included from m pas2geography/geography.ccb sl: l<_Anr2g o:
nsn In file included from .u. s2geography/geography.h l.:> (ls4)   :
,e  In file included from x"p ../src/s2/s2polygon.hbra :tde 34 xf :
to) In file included from r;m ../src/s2/mutable_s2shape_index.h
a :       t30  t| r:
a                 ^In file included from p\
/usr/local/clang/include/absl/container/btree_map.h"
:/usr/local/clang/include/absl/base/nullability.h)      66:)| :
241)               ^
In file included from :
      /usr/local/clang/include/absl/container/internal/btree.h22| :                     ^/usr/local/clang/include/absl/container/internal/common.h:70
: :
32note: In file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/container/internal/layout.h
9::  198 241:
note:  | /usr/local/clang/include/absl/strings/str_cat.hmacro 'ABSL_INTERNAL_IF_false' defined here#:d
639e:f29i   :n32 /usr/local/clang/include/absl/strings/internal/str_format/bind.he | warning: : #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]162ad
:be22  sf:639li  | _vnwarning: noe'enable_if' is a clang extension [-Wgcc-compat]oin 
dn uAS  tlrB162lA S | p p e _ LnNdo(n n_s u_Itld_:Nla:tT
sttE      rriR| i                     ^nbgN
u*tA eaL_b__s(Il(_FIn file included from enn_s2geography/distance.ccoanbf:nla2uel_l:
li sIn file included from fdes2geography/distance.h(eV(:satli4f,i:
_ dcFooIn file included from rsns2geography/geography.hmas:atti4t Is:
AmlfIn file included from ppi../src/s2/s2polygon.helh:adN<32A,u:
mr& In file included from g .../src/s2/base/logging.hsa.,:
..21      .):
| .                            ^ In file included from >
_/usr/local/clang/include/absl/log/check.h_(:s/usr/local/clang/include/absl/base/nullability.h)V37:,A:
241 _In file included from :"A/usr/local/clang/include/absl/log/internal/check_impl.h22bR:G:a21dS :
 _note: _/usr/local/clang/include/absl/log/internal/check_op.hfexpanded from macro 'absl_nonnull'o
:
r      514m  a| :241t        ^13 |  #
:td rewarning: aftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]pi
"n)e)   )514a
 | b      cs| ol                     ^n_
snto ncnhualrl*  _aNbosnln_unlull
l      a| b                     ^l
e CheckstrcmpfalseImplIn file included from (s2geography/geography.cc
:      2| :
            ^In file included from 
s2geography/geography.h:4/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2polygon.h::2334::
 In file included from ../src/s2/mutable_s2shape_index.hnote: :expanded from macro 'absl_nullable'30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :25766 | :
#In file included from d/usr/local/clang/include/absl/container/internal/btree.he:f70i:
nIn file included from e/usr/local/clang/include/absl/container/internal/layout.h :a198b:
s/usr/local/clang/include/absl/strings/str_cat.hl:_641n:u29l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e _N  u641l | lvaobilde 
S      t| r                      ^A
ppendIn file included from (s2geography/distance.ccs:t2d:
:In file included from :s2geography/distance.hs:t4r:
iIn file included from ns2geography/geography.hg:*4 :
aIn file included from b../src/s2/s2polygon.hs:l32_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :d37e:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h,: 21c:
o/usr/local/clang/include/absl/log/internal/check_op.hn:s515t: 17A:l pwarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
Num  &515  | a , 
        | c                            ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  asb1s,l _cnoonnsntu lclh a_rN*o nanbuslll_
n      u| l                     ^l
able s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2geography/geography.ccs:l2_:
nIn file included from us2geography/geography.hl:l4aIn file included from :
bs2geography/coverings.ccIn file included from l:../src/s2/s2polygon.he2: :
34_In file included from :
Ns2geography/coverings.hIn file included from u:../src/s2/mutable_s2shape_index.hl6:l:
30aIn file included from :
bs2geography/geography.hIn file included from l:/usr/local/clang/include/absl/container/btree_map.he4:
:
66      In file included from :
| ../src/s2/s2polygon.hIn file included from                       ^:/usr/local/clang/include/absl/container/internal/btree.h
29::
70In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from In file included from :/usr/local/clang/include/absl/container/internal/layout.hs2geography/distance.cc45:::
1982:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/strings/str_cat.h:
::In file included from 184646s2geography/distance.h:::3364:::
  In file included from warning: s2geography/geography.hwarning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
4
:
In file included from ../src/s2/s2polygon.h:  32  184:
646 | In file included from  |  ../src/s2/base/logging.hi :nA21lB:
iSIn file included from nL/usr/local/clang/include/absl/log/check.he_: I37vN:
oTIn file included from iE/usr/local/clang/include/absl/log/internal/check_impl.hdR: N21SA:
tL/usr/local/clang/include/absl/log/internal/check_op.h_r:XA515p(:pi47en:ns dewarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]rs
tt_  do515:r | : _s ta rs iscniogng*s nt,a b csihnla_srn*eo nrantbus_lollr_ n_duealssltas,ib lgcneo _nsis1mt,p l c,Ao lnpcshotna Nscuhtma&&r *a, , a
bc      so| ln                                   ^s_
tn&/usr/local/clang/include/absl/base/nullability.hu,:l 241lt:ar22bule: e s,2
note: ,      expanded from macro 'absl_nonnull'
| 
  ^        
| 241                                              ^ | /usr/local/clang/include/absl/container/internal/raw_hash_map.h
#:d/usr/local/clang/include/absl/base/nullability.he133:f:257i52:n:23e :  anote: note: bexpanded from macro 'absl_nullable'expanded from macro 'ABSL_INTERNAL_X's
l
  _257n | o  #n133dn | e fui ln l e   _aN bo s nl n_un lulAl
lB      aS| b                     ^Ll
_eI N_TNEuRlNlAaLb_lAeT
T      R| I                      ^B
UTE_CAIn file included from Ps2geography/distance.ccT:U2R:
EIn file included from Ds2geography/distance.h_:B4Y:
(In file included from ts2geography/geography.hh:i4s:
)In file included from )../src/s2/s2polygon.h,: 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 516 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                                                      ^516
 |  /usr/local/clang/include/absl/container/internal/common.h : 31 :c9o:n snote: tmacro 'ABSL_INTERNAL_IF_true' defined here 
cha   r31* |  #adbesfli_nneo nAnBuSlLl_ IeNxTpErRtNeAxLt_)I;F
_      t| r                ^u
e(/usr/local/clang/include/absl/base/nullability.hi:f241_:s22a:t inote: sexpanded from macro 'absl_nonnull'f
ie  d241, |  #.d.e.f)i nief _asbastli_snfoinendu
l      l|          ^_
Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.hIn file included from :s2geography/distance.cc6::
2In file included from :
s2geography/geography.hIn file included from :s2geography/distance.h4::
4In file included from :
../src/s2/s2polygon.hIn file included from :s2geography/geography.h29::
4In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :../src/s2/s2polygon.h45::
32/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 184../src/s2/base/logging.h::321::
 In file included from /usr/local/clang/include/absl/log/check.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :184517 | : 13 :A Bwarning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_IN  T517E | RcNoAnLs_tX (cihnasre*r ta_bosrl__ansuslilganb,l ei nCsheerctk_sotrr_caassseicgmnp_tirmupelI,m pclo(n
s      t| &            ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n257s:t23&:,  note: texpanded from macro 'absl_nullable'r
ue  ,257
 |       #| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
f  i185n | e   a b s l _ n u l l a b l e   _ N utlrluaeb,l e.
f      i| r                      ^s
t, coIn file included from ns2geography/distance.ccs:t2_:
iIn file included from ts2geography/distance.he:r4a:
tIn file included from os2geography/geography.hr: 4A:
BIn file included from S../src/s2/s2polygon.hL:_32I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:C37O:
MIn file included from M/usr/local/clang/include/absl/log/internal/check_impl.hA:)21;:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 518                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
17: /usr/local/clang/include/absl/container/internal/raw_hash_map.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]133
:47:   518note:  | expanded from macro 'ABSL_INTERNAL_X' 
   c  o133n | s t   c h a r *   a bAsBlS_Ln_uIlNlTaEbRlNeA Ls_1A,T TcRoInBsUtT Ec_hCaArP*T UaRbEsDl__BnYu(ltlhaibsl)e) ,s 2 , 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f\i
n      e|                                                ^~~~a
bsl_nul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:a184b:l3e:  _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
l/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:a135b:l16e:
       note: | expanded from macro 'ABSL_INTERNAL_X'                      ^

  135 |   In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4t:
hIn file included from is2geography/geography.hs:)4):
)In file included from  ../src/s2/s2polygon.hA:B32S:
LIn file included from _../src/s2/base/logging.hA:T21T:
RIn file included from I/usr/local/clang/include/absl/log/check.hB:U37T:
EIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hL:I21F:
E/usr/local/clang/include/absl/log/internal/check_op.hT:I518M:E47_:B Owarning: Utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
D {   518  |          c o n s t   c h a r *   a b s l _ n u l l a b l\e
       s| 1               ^,
 c/usr/local/clang/include/absl/container/internal/common.ho:n31s:t9 :c hnote: amacro 'ABSL_INTERNAL_IF_true' defined herer
* a   b31s | l#_dneuflilnaeb lAeB SsL2_,I
N      T| E                                              ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_257I:F23_:t rnote: uexpanded from macro 'absl_nullable'e
(i  f257_ | s#adteifsifniee da,b s.l._.n)u lilfa_bslaet i_sNfuilelda
b      l| e        ^

      |                       ^
In file included from s2geography/distance.cc:2In file included from :
s2geography/coverings.ccIn file included from :s2geography/distance.h2::
4In file included from :
s2geography/coverings.hIn file included from :s2geography/geography.h6::
4In file included from :
s2geography/geography.hIn file included from :../src/s2/s2polygon.h4::
32In file included from :
../src/s2/s2polygon.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :/usr/local/clang/include/absl/log/check.h45::
37/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 184/usr/local/clang/include/absl/log/internal/check_impl.h::321::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]519
:17: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]184
 |     519A | B S L _ IcNoTnEsRtN AcLh_aXr(*i nasbesrlt__noorn_nauslsli genx,p ritnesxetr)t;_
o      r| _                ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g241n:_22i:m pnote: lexpanded from macro 'absl_nonnull',
 c  o241n | s#td&e,f icnoen satb&s,l _tnrounen,u
l      l|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
Non  n185u | l l 
        |                       ^ 
            tIn file included from rs2geography/distance.ccu:e2,:
 In file included from .s2geography/distance.hf:i4r:
sIn file included from ts2geography/geography.h,: 4c:
oIn file included from n../src/s2/s2polygon.hs:t32_:
iIn file included from t../src/s2/base/logging.he:r21a:
tIn file included from o/usr/local/clang/include/absl/log/check.hr: 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hL:_21I:
N/usr/local/clang/include/absl/log/internal/check_op.hT:E520R:N13A:L _warning: Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]O
MMA  )520; | 
c      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
t c/usr/local/clang/include/absl/container/internal/raw_hash_map.hh:a135r:*11 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_nu  l135l | a b l e   C h e c k stthricsa)s)e)c mApBfSaLl_sAeTITmRpIlB(U
T      E| _            ^L
IF/usr/local/clang/include/absl/base/nullability.hE:T257I:M23E:_ Bnote: Oexpanded from macro 'absl_nullable'U
ND   257{ |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l\e

            | |           ^~~~                      ^

In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: In file included from note: s2geography/linear-referencing.ccmacro 'ABSL_INTERNAL_IF_true' defined here:
2:
In file included from    s2geography/linear-referencing.h31: | 4#:
dIn file included from es2geography/geography.hf:i4n:
eIn file included from  ../src/s2/s2polygon.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hI:N43T:
EIn file included from R/usr/local/clang/include/absl/container/hash_container_defaults.hN:A19L:
_In file included from I/usr/local/clang/include/absl/container/internal/hash_function_defaults.hF:_59t:
rIn file included from u/usr/local/clang/include/absl/strings/cord.he:(82i:
fIn file included from _/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:a23t:
iIn file included from s/usr/local/clang/include/absl/crc/crc32c.hf:i32e:
d,/usr/local/clang/include/absl/strings/str_format.h :.115.:.52):  iwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
satis  f115i | e d 
        |          ^ 
const str_format_inteIn file included from rs2geography/coverings.ccn:a2l:
:In file included from :s2geography/coverings.hP:a6r:
sIn file included from es2geography/geography.hd:F4o:
rIn file included from m../src/s2/s2polygon.ha:t29B:
aIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.he:*45 :
a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:s189l:_3n:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll pc)  
189       | |                                                     ^ 
ABSL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_X  (241i | n#sdeerfti_noer _aabsssli_gnno,n niunlsle r_tN_oonrn_ualsls
i      g| n                     ^_
impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                       In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h :\4
:
      In file included from | s2geography/geography.h          ^~~~:
4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { retur/usr/local/clang/include/absl/container/internal/raw_hash_map.hn: 191p:_3;:  }warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|        ^
  /usr/local/clang/include/absl/base/nullability.h191: | 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(ei nasbesrlt__noorn_nauslsli g_nN,o ninnuslelr
t      _| o                     ^r
_assign_impl, constIn file included from &s2geography/linear-referencing.cc,: 2&:
&In file included from ,s2geography/linear-referencing.h :t4r:
uIn file included from es2geography/geography.h,:
4      :
| In file included from   ^../src/s2/s2polygon.h
:29:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h133::4352:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hnote: :expanded from macro 'ABSL_INTERNAL_X'19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59133:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from A/usr/local/clang/include/absl/crc/crc32c.hB:S32L:
_/usr/local/clang/include/absl/strings/str_format.hI:N165T:E8R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
AT  T165R | I B UiTnEt_*C AaPbTsUlR_EnDo_nBnYu(ltlh ips_);)
,       |         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n31u:l9l:  _note: Nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l | 
#      d| e                     ^f
ine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:In file included from 4s2geography/coverings.cc:
:In file included from 2s2geography/geography.h:
:In file included from 4s2geography/coverings.h:
:In file included from 6../src/s2/s2polygon.h:
:In file included from 32s2geography/geography.h:
:In file included from 4../src/s2/base/logging.h:
:In file included from 22../src/s2/s2polygon.h:
:In file included from 29/usr/local/clang/include/absl/log/log.h:
:In file included from 209/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 45/usr/local/clang/include/absl/log/internal/log_impl.h:
:/usr/local/clang/include/absl/container/internal/raw_hash_map.h20::
191In file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h3::63 :
warning: /usr/local/clang/include/absl/log/internal/vlog_config.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
49:37: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]191
 |      A49B | SiLn_tI NRTeEgRiNsAtLe_rXA(nidnIsneirttIn file included from i_s2geography/linear-referencing.ccao:lr2i_:
azIn file included from ses2geography/linear-referencing.hs(i:gV4Ln:
o,In file included from g s2geography/geography.hSi:in4ts:
eeIn file included from *r../src/s2/s2polygon.h t:a_29bo:
srIn file included from _l/usr/local/clang/include/absl/container/flat_hash_map.ha_:ns43os:
inIn file included from gn/usr/local/clang/include/absl/container/hash_container_defaults.hnu_:ilm19pl:
l ,In file included from v /usr/local/clang/include/absl/container/internal/hash_function_defaults.h)c:;o59
n:
s      In file included from t| /usr/local/clang/include/absl/strings/cord.h&                                    ^:,
82 :
&In file included from /usr/local/clang/include/absl/base/nullability.h&/usr/local/clang/include/absl/crc/internal/crc_cord_state.h,: :t24123r::
u22In file included from e:/usr/local/clang/include/absl/crc/crc32c.h, :
note: 32expanded from macro 'absl_nonnull'      :

| /usr/local/clang/include/absl/strings/str_format.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  :
241380 | :#43  d:e192 f | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] n
 e     a380 b  |  s slt _ dn : o : n sn t u rlfilanl g_s&eN,  oSn.tfnruiAlprlp
set      n,|  dc                     ^oFn
osrtm_aitt(esrtadt:o:rs tArBiSnLg_*I NaTbEIn file included from sRs2geography/distance.ccNl:A_L2n_:
oCIn file included from nOs2geography/distance.hnM:MuA4l):
l;In file included from  
s2geography/geography.hd      :s| 4t                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
,
In file included from 
../src/s2/s2polygon.h      :| /usr/local/clang/include/absl/container/internal/raw_hash_map.h32                                          ^::

133In file included from :../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h47:::22241 :
:note: In file included from 22expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/log.h:
: 209:
note: In file included from expanded from macro 'absl_nonnull'  /usr/local/clang/include/absl/log/internal/log_impl.h
133:   | 20241 :
 |  In file included from # /usr/local/clang/include/absl/log/absl_vlog_is_on.hd :e 63f :
i /usr/local/clang/include/absl/log/internal/vlog_config.hn :e 63  :aA43bB:sS lLwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_n
oInN   nT63uE | l Rl  Ne_xANpoLlni_ncAuilTtl T
cR      oI| n                     ^Bs
tUeTxEp_rC AVPLToUgRSEiDt_eB(Yc(otnhsits )c)h,a r *   a b s l _ n o n n u l l   f ) 
        |                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                                              ^~~~ 
note: expanded from macro 'absl_nonnull'
  241 | #d/usr/local/clang/include/absl/container/internal/raw_hash_map.he:f191i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:o135n:n16u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'_
Non  n135u | l l 
        |                       ^ 
    thisIn file included from )s2geography/linear-referencing.cc):)2 :
AIn file included from Bs2geography/linear-referencing.hS:L4_:
AIn file included from Ts2geography/geography.hT:R4I:
BIn file included from U../src/s2/s2polygon.hT:E29_:
LIn file included from I/usr/local/clang/include/absl/container/flat_hash_map.hF:E43T:
IIn file included from M/usr/local/clang/include/absl/container/hash_container_defaults.hE:19_:
BIn file included from O/usr/local/clang/include/absl/container/internal/hash_function_defaults.hU:N59D:
 In file included from { /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h :In file included from  23s2geography/distance.cc :
: In file included from 2 /usr/local/clang/include/absl/crc/crc32c.h:
 : In file included from 32 s2geography/distance.h:
 :/usr/local/clang/include/absl/strings/str_format.h 4: :
440 In file included from : s2geography/geography.h24 :: 4  :
warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from  
../src/s2/s2polygon.h : 32   :
440 In file included from  |  ../src/s2/base/logging.hi :\n22t
:
       In file included from F| /usr/local/clang/include/absl/log/log.hP               ^:r
209i:
n/usr/local/clang/include/absl/container/internal/common.hIn file included from t:/usr/local/clang/include/absl/log/internal/log_impl.hF32:(:20s9:
t:In file included from d /usr/local/clang/include/absl/log/absl_vlog_is_on.h:note: ::macro 'ABSL_INTERNAL_IF_false' defined here63F
:
I/usr/local/clang/include/absl/log/internal/vlog_config.hL   :E3296* | : #60dae:bf siwarning: lntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_e
n oAn   nB96uS | lL l  _fIoruNiteTpnuEdt ,Ri nNcAtLo n_lsoItgF _F_ionfrtmaealrtnsSapele(:c:i<RAferg_gisss.ta.e.tr>Ai&ns fdfIionreimdta,ita ,l
i.      z.| e                       ^.(
V)L /usr/local/clang/include/absl/base/nullability.ho_:_g241VS:iA22_t:eA R*note:  Gexpanded from macro 'absl_nonnull'aS
b_s_  
l241_       | n#| odn        ^enf
uilnle  va)b;s
l      _| n                                                           ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/distance.cc::2412::
22In file included from :s2geography/distance.h :4note: :
expanded from macro 'absl_nonnull'In file included from 
s2geography/geography.h:4  :
241In file included from  | ../src/s2/s2polygon.h#:d32e:
fIn file included from i../src/s2/base/logging.hn:e22 :
aIn file included from b/usr/local/clang/include/absl/log/log.hs:l209_:
nIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hn:n20u:
lIn file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.h :_63N:
o/usr/local/clang/include/absl/log/internal/vlog_config.hn:n119u:l15l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  119 |   cIn file included from os2geography/coverings.ccn:s2t:
 In file included from cs2geography/coverings.hh:a6r:
*In file included from  s2geography/geography.ha:b4s:
lIn file included from _../src/s2/s2polygon.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l45 :
c/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n193s:t3 :f iwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
_;
      |                 ^193
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
EIn file included from R  s2geography/linear-referencing.ccN241:A | L2#_:
dXIn file included from e(s2geography/linear-referencing.hifn:is4ne:
erIn file included from  ts2geography/geography.ha_:ob4rs:
l_In file included from _a../src/s2/s2polygon.hns:os29ni:
ngIn file included from un/usr/local/clang/include/absl/container/flat_hash_map.hl,:l 43 i:
_nIn file included from Ns/usr/local/clang/include/absl/container/hash_container_defaults.hoe:rn19tn_:
uoIn file included from lr/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl_:
a59      s:
s| In file included from i                     ^/usr/local/clang/include/absl/strings/cord.hg
n:_82i:
mIn file included from p/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:,23 :
cIn file included from o/usr/local/clang/include/absl/crc/crc32c.hn:s32t:
&/usr/local/clang/include/absl/strings/str_format.h,: 503&:&20,:  twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e,
        | 503  ^ | 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.hF:o133r:m52a:t Rnote: aexpanded from macro 'ABSL_INTERNAL_X'w
Sin  k133( | T *   a b s l _ n o nAnBuSlLl_ IrNaTwE)R N A/L/_ ANTOTLRIINBTU
T      E| _                   ^C
APT/usr/local/clang/include/absl/base/nullability.hU:R241E:D22_:B Ynote: (expanded from macro 'absl_nonnull't
hi  s241) | )#,d e f i n e   a b s l _ n o n n u l l   _ N o n n u l\l

            | |                                                    ^                     ^

/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:In file included from 3s2geography/linear-referencing.cc:: 2:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2geography/linear-referencing.h
:4:
In file included from s2geography/geography.h  :1964 | :
 In file included from  ../src/s2/s2polygon.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hI:N43T:
EIn file included from R/usr/local/clang/include/absl/container/hash_container_defaults.hN:A19L:
_In file included from X/usr/local/clang/include/absl/container/internal/hash_function_defaults.h(:i59n:
sIn file included from e/usr/local/clang/include/absl/strings/cord.hr:t82_:
oIn file included from r/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:a23s:
sIn file included from i/usr/local/clang/include/absl/crc/crc32c.hg:n32,:
 /usr/local/clang/include/absl/strings/str_format.hi:n860s:e43r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_ass  i860g | n _ ifmrpile,n d& &v,o icdo nAsbts&l,F oframlasteF,l
u      s| h  ^(
Fo/usr/local/clang/include/absl/container/internal/raw_hash_map.hr:m135a:t16S:i nnote: kexpanded from macro 'ABSL_INTERNAL_X'*
 ab  s135l | _ n o n n u l l   s itnhki,s
)      )| )                                          ^ 
ABS/usr/local/clang/include/absl/base/nullability.hL:_241A:T22T:R Inote: Bexpanded from macro 'absl_nonnull'U
TE  _241L | I#FdEeTfIiMnEe_ BaObIn file included from Uss2geography/distance.cclN:_D2n :
o{In file included from n s2geography/distance.hn :u 4l :
 l In file included from   s2geography/geography.h_ : N4 o :
n In file included from n ../src/s2/s2polygon.hu :l 32l :

 In file included from        ../src/s2/base/logging.h|                       ^: 
22 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20:
\In file included from 
/usr/local/clang/include/absl/log/absl_vlog_is_on.h      :| 63               ^:

/usr/local/clang/include/absl/log/internal/vlog_config.h:/usr/local/clang/include/absl/container/internal/common.h133::3237:In file included from :9s2geography/linear-referencing.cc ::warning:  2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: :
macro 'ABSL_INTERNAL_IF_false' defined here
In file included from 
s2geography/linear-referencing.h:  4   133:
32 | In file included from  | i#s2geography/geography.hdn:te4 f:
iRIn file included from ne../src/s2/s2polygon.heg: i29sA:
tBIn file included from eS/usr/local/clang/include/absl/container/flat_hash_map.hrL:_A43In:
NdTIn file included from IEn/usr/local/clang/include/absl/container/hash_container_defaults.hRi:tN19iA:
LaIn file included from _l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIi:zF59e_:
(fIn file included from Va/usr/local/clang/include/absl/strings/cord.hLl:os82ge:
S(In file included from ii/usr/local/clang/include/absl/crc/internal/crc_cord_state.htf:e_23*s:
 aIn file included from at/usr/local/clang/include/absl/crc/crc32c.hbi:ss32lf:
_i/usr/local/clang/include/absl/strings/str_format.hne:od867n,:n 60u.:l. l.warning:  )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] v
)_;_
  V      867A|  |                                     ^_ 
 Ae/usr/local/clang/include/absl/base/nullability.hRx:Gp241lS:i_22c_:i
 t       note: F| expanded from macro 'absl_nonnull'o        ^
r
m  a241t | S#idnekf(isnter _afbosrlm_anto_ninnutlelr n_aNlo:n:nFuolrlm
a      t| S                     ^i
nkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209In file included from :
s2geography/linear-referencing.ccIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h2::
20In file included from :
s2geography/linear-referencing.hIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h4::
63In file included from :
s2geography/geography.h:/usr/local/clang/include/absl/log/internal/vlog_config.h4::
157In file included from :../src/s2/s2polygon.h11::29 :
In file included from warning: /usr/local/clang/include/absl/container/flat_hash_map.h:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19  :
157In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.hV:L59o:
gIn file included from S/usr/local/clang/include/absl/strings/cord.hi:t82e:
*In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/crc/crc32c.hnIn file included from :us2geography/coverings.cc32l::
l2/usr/local/clang/include/absl/strings/str_format.ha:
:bIn file included from 869ls2geography/coverings.h:e:40 6:S:
 eIn file included from warning: ts2geography/geography.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]V:
M4o:
  dIn file included from 869u../src/s2/s2polygon.h | l :e L29si:
tsrIn file included from t_H/usr/local/clang/include/absl/container/flat_hash_map.hfeo:ard45mF:
ao/usr/local/clang/include/absl/container/internal/raw_hash_map.htr_:Tien198st:te3Orn:nl aywarning: l(:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
:
      F| o          ^r
m  a198/usr/local/clang/include/absl/base/nullability.ht | :S 257i :nA23kB:IS mLnote: pexpanded from macro 'absl_nullable'_l
I*N   T257aE | b#RsNdleA_fnLi_onXne(n iuanlbsls elrs_itnn_ukol_rl;_a
ba      ls| e                                       ^s 
i_g/usr/local/clang/include/absl/base/nullability.hnN:,u241 l:li22an:bs enote: lexpanded from macro 'absl_nonnull'er

t  _      241o|  |                       ^r#
d_eafsisIn file included from nis2geography/distance.cceg: n2_a:
ibmIn file included from sps2geography/distance.hll:,_4n :
o&In file included from n&s2geography/geography.hn,: u4lc:
loIn file included from  n../src/s2/s2polygon.h_s:tN32&o,:
n In file included from nf../src/s2/base/logging.hua:ll22ls:

eIn file included from       ,/usr/local/clang/include/absl/log/log.h| 
:                     ^      209
| :
  ^In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:20/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 133/usr/local/clang/include/absl/log/absl_vlog_is_on.h::5263::
 /usr/local/clang/include/absl/log/internal/vlog_config.hnote: :expanded from macro 'ABSL_INTERNAL_X'158
:15:   warning: 133type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
     158  |          V LAoBgSSLi_tIeN*T absElR_NnAuLl_lAaTbTlReI BvU)T;E
_      C| A              ^P
TU/usr/local/clang/include/absl/base/nullability.hR:E257D:_23B:Y (note: texpanded from macro 'absl_nullable'h
is  )257) | ,# d e f i n e   a b s l _ n u l l a b l e   _ N u l l\a
b      l| e                                                   ^

      |                       ^/usr/local/clang/include/absl/container/internal/common.h
:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(inseIn file included from rs2geography/distance.cct:_2o:
rIn file included from _s2geography/distance.ha:s4s:
iIn file included from gs2geography/geography.hn:,4 :
iIn file included from n../src/s2/s2polygon.hs:e34r:
tIn file included from _../src/s2/mutable_s2shape_index.ho:r30_:
aIn file included from s/usr/local/clang/include/absl/container/btree_map.hs:i66g:
nIn file included from _/usr/local/clang/include/absl/container/internal/btree.hi:m70p:
lIn file included from ,/usr/local/clang/include/absl/container/internal/layout.h :&198&:
,In file included from  /usr/local/clang/include/absl/strings/str_cat.hc:o116n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.h&:,23 :
t/usr/local/clang/include/absl/strings/numbers.hr:u66e:,41
:       | warning:   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:   5266: |   note:  expanded from macro 'ABSL_INTERNAL_X' 
      133  |                      A B S L _ I N T E R N AiLn_tA_TtTyRpIeB*U TaEb_sClA_PnToUnRnEuDl_lB Yo(utth)i;s
)      )| ,                                        ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                                                   ^n
on/usr/local/clang/include/absl/container/internal/common.hn:u31l:l9 :_ Nnote: omacro 'ABSL_INTERNAL_IF_true' defined heren
nul   l31
 |       #| d                     ^e
fine ABSL_INTERNAL_IF_true(if_satIn file included from is2geography/distance.ccs:f2i:
eIn file included from ds2geography/distance.h,: 4.:
.In file included from .s2geography/geography.h): 4i:
fIn file included from _../src/s2/s2polygon.hs:a34t:
iIn file included from s../src/s2/mutable_s2shape_index.hf:i30e:
dIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66        ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61In file included from :s2geography/coverings.cc :warning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from s2geography/coverings.h:6:
In file included from    s2geography/geography.h77: | 4[:
[In file included from n../src/s2/s2polygon.ho:d29i:
sIn file included from c/usr/local/clang/include/absl/container/flat_hash_map.ha:r45d:
]/usr/local/clang/include/absl/container/internal/raw_hash_map.h]: 200b:o3o:l  warning: S'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
mpleA  t200o | f ( aAbBsSlL:_:IsNtTrEiRnNgA_Lv_iXe(wi nssterr,t _folro_aats*s iagbns,l _innosnenrutl_lo ro_uats)s;i
g      n| _                                                            ^i
mp/usr/local/clang/include/absl/base/nullability.hl:,241 :&22&:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241& | ,# dterfuien,e
       a| b  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
l_n  o201n | n u l l   _ N o n n u l l 
        |                       ^ 
 false, .first, const_iteratIn file included from os2geography/distance.ccr: 2A:
BIn file included from Ss2geography/distance.hL:_4I:
NIn file included from Ts2geography/geography.hE:R4N:
AIn file included from L../src/s2/s2polygon.h_:C34O:
MIn file included from M../src/s2/mutable_s2shape_index.hA:)30;:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h70::
133In file included from :/usr/local/clang/include/absl/container/internal/layout.h47::198 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/strings/str_cat.h
:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h  :13323 | :
 /usr/local/clang/include/absl/strings/numbers.h : 88 : 62 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL   _88I | N[T[EnRoNdAiLs_cAaTrTdR]I]B UbToEo_lC ASPiTmUpRlEeDA_tBoYd((tahbissl):):,s t r i n g _ v i e w   s t r ,   d o u b l e *   a b\s
l      _| n                                              ^~~~o
nnull o/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:t200):;3
:       | warning:                                                              ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::241135::2216::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241 |   #135d | e f i n e   a b s l _tnhoinsn)u)l)l  A_BNSoLn_nAuTlTlR
I      B| U                     ^T
E_LIFETIME_BOUND {        In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h :\30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h               ^:
66:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h32::709:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h   :32116 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.he:f23i:
n/usr/local/clang/include/absl/strings/numbers.he: 98A:B60S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN   A98L | _[I[Fn_ofdailsscea(ridf]_]s abtoioslf iSeidm,p l.e.A.t)o b_(_aVbAs_lA:R:GsSt_r_i
n      g| _        ^v
iew str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2In file included from :
s2geography/distance.ccIn file included from :s2geography/coverings.h2::
6In file included from :
s2geography/distance.hIn file included from :s2geography/geography.h4::
4In file included from :
s2geography/geography.hIn file included from :../src/s2/s2polygon.h4::
29In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h34::
45In file included from :
../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h30::
202In file included from :/usr/local/clang/include/absl/container/btree_map.h3::66 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :202198 | :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.hA:B116S:
LIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hI:N23T:
E/usr/local/clang/include/absl/strings/numbers.hR:N116A:L55_:X (warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
sert  _116o | r _ a s s i g n ,   i n s e r t _ o r _ a s s i g n _ i m p l ,   & & ,   c o n satb&s,l :t:riunet,1
2      8| *  ^ 
ab/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l133_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l o  u133t | ) ; 
        |                                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eAfTiTnReI BaUbTsEl__CnAoPnTnUuRlElD __BNYo(ntnhuilsl)
)      ,|                       ^ 
                        In file included from \s2geography/distance.cc
:      2| :
                                                   ^In file included from 
s2geography/distance.h:4/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31s2geography/geography.h::94::
 In file included from note: ../src/s2/s2polygon.hmacro 'ABSL_INTERNAL_IF_true' defined here:
34:
In file included from ../src/s2/mutable_s2shape_index.h   :3130 | :
#In file included from d/usr/local/clang/include/absl/container/btree_map.he:f66i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :A70B:
SIn file included from L/usr/local/clang/include/absl/container/internal/layout.h_:I198N:
TIn file included from E/usr/local/clang/include/absl/strings/str_cat.hR:N116A:
LIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hI:F23_:
t/usr/local/clang/include/absl/strings/numbers.hr:u118e:(56i:f _warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tisf  i118e | d ,   . . . )   i f _ s a t i s f i e d 
        |          ^ 
                In file included from as2geography/coverings.ccb:s2l:
:In file included from :s2geography/coverings.hu:i6n:
tIn file included from 1s2geography/geography.h2:84*:
 In file included from a../src/s2/s2polygon.hb:s29l:
_In file included from n/usr/local/clang/include/absl/container/flat_hash_map.ho:n45n:
u/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l202 :o3u:t )warning: ;'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h  :202241 | : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nXe( ianbsselr_tn_oonrn_ualsls i_gNno,n niunlsle
r      t| _                     ^o
r_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133In file included from :s2geography/distance.cc47::2 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X's2geography/distance.h
:4:
In file included from s2geography/geography.h  :1334 | :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L66_:
IIn file included from N/usr/local/clang/include/absl/container/internal/btree.hT:E70R:
NIn file included from A/usr/local/clang/include/absl/container/internal/layout.hL:_198A:
TIn file included from T/usr/local/clang/include/absl/strings/str_cat.hR:I116B:
UIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hE:_23C:
A/usr/local/clang/include/absl/strings/numbers.hP:T152U:R37E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(th  i152s | )v)o,i d   P u t T w o D i g i t s ( u i n t 3 2 _ t   i ,\ 
c      h| a                                              ^~~~r
* absl/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n202o:n3n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
bu/usr/local/clang/include/absl/container/internal/raw_hash_map.hf:)135;:
16      :|                                      ^note: 
expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/base/nullability.h:241  :13522 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dtehfiisn)e) )a bAsBlS_Ln_oAnTnTuRlIlB U_TNEo_nLnIuFlElT
I      M| E                     ^_
BOUND {                        In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h\:
4      :
| In file included from                ^s2geography/geography.h
:4/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s2polygon.h::934::
 In file included from note: ../src/s2/mutable_s2shape_index.hmacro 'ABSL_INTERNAL_IF_true' defined here:
30:
In file included from    /usr/local/clang/include/absl/container/btree_map.h31: | 66#:
dIn file included from e/usr/local/clang/include/absl/container/internal/btree.hf:i70n:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.hA:B198S:
LIn file included from _/usr/local/clang/include/absl/strings/str_cat.hI:N116T:
EIn file included from R/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:A23L:
_/usr/local/clang/include/absl/strings/numbers.hI:F156_:t55r:u ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
f_sa  t156i | sbfoioeld ,s a.f.e._)s tirft_os8a_tbiassfei(eadb
s      l| :        ^:
string_view In file included from ts2geography/coverings.cce:x2t:
,In file included from  s2geography/coverings.hi:n6t:
8In file included from _s2geography/geography.ht:*4 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:n45u:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 202v:a3l:u ewarning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                                                       ^
  /usr/local/clang/include/absl/base/nullability.h202: | 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(ei nasbesrlt__noorn_nauslsli g_nN,o ninnuslelr
t      _| o                     ^r
_assign_impl, &&, const&In file included from ,s2geography/distance.cc :t2r:
uIn file included from es2geography/distance.h,:
4      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s2geography/geography.h
:4:
In file included from   ../src/s2/s2polygon.h203: | 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.ht:r198u:
eIn file included from ,/usr/local/clang/include/absl/strings/str_cat.h :.116f:
iIn file included from r/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:t23,:
 /usr/local/clang/include/absl/strings/numbers.hc:o158n:s57t:_ iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rato  r158  | AbBoSoLl_ IsNaTfEeR_NsAtLr_tCoO1M6M_Ab)a;s
e      (| a                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl:/usr/local/clang/include/absl/container/internal/raw_hash_map.h::s135t:r11i:n gnote: _expanded from macro 'ABSL_INTERNAL_X'v
iew   135t | e x t ,   i n t 1 6 _tth*i sa)b)s)l _AnBoSnLn_uAlTlT RvIaBlUuTeE,_
L      I| F                                                        ^E
TI/usr/local/clang/include/absl/base/nullability.hM:E241_:B22O:U Nnote: Dexpanded from macro 'absl_nonnull' 
{    241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u\l
l      
|                 ^~~~| 
                     ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_vi/usr/local/clang/include/absl/container/internal/raw_hash_map.he:w205 :t3e:x twarning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
int6  4205_ | t *  AaBbSsLl__InNoTnEnRuNlAlL _vXa(liunes,e
r      t| _                                                        ^o
r_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n ,note:  expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns_li_mnpoln,n u&l&l,  _&N&o,n nfuallls
e      ,|                       ^f
alse,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |     In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.hA:B4S:
LIn file included from _s2geography/geography.hI:N4T:
EIn file included from R../src/s2/s2polygon.hN:A34L:
_In file included from A../src/s2/mutable_s2shape_index.hT:T30R:
IIn file included from B/usr/local/clang/include/absl/container/btree_map.hU:T66E:
_In file included from C/usr/local/clang/include/absl/container/internal/btree.hA:P70T:
UIn file included from R/usr/local/clang/include/absl/container/internal/layout.hE:D198_:
BIn file included from Y/usr/local/clang/include/absl/strings/str_cat.h(:t116h:
iIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.h):)23,:
 /usr/local/clang/include/absl/strings/numbers.h : 165 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       165  |                     \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note: amacro 'ABSL_INTERNAL_IF_false' defined hereb
sl:   :32i | n#td1e2f8i*n ea bAsBlS_Ln_oInNnTuElRlN AvLa_lIuFe_,f ailnste (biafs_es)a;t
i      s| f                                      ^i
ed/usr/local/clang/include/absl/base/nullability.h,: 241.:.22.:)  note: _expanded from macro 'absl_nonnull'_
VA  _241A | R#GdSe_f_i
n      e|          ^a
bsl_nonnulIn file included from ls2geography/coverings.cc :_2N:
oIn file included from ns2geography/coverings.hn:u6l:
lIn file included from 
s2geography/geography.h      :| 4                     ^:

In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |  In file included from  s2geography/distance.ccA:B2S:
LIn file included from _s2geography/distance.hI:N4T:
EIn file included from Rs2geography/geography.hN:A4L:
_In file included from X../src/s2/s2polygon.h(:i34n:
sIn file included from e../src/s2/mutable_s2shape_index.hr:t30_:
oIn file included from r/usr/local/clang/include/absl/container/btree_map.h_:a66s:
sIn file included from i/usr/local/clang/include/absl/container/internal/btree.hg:n70,:
 In file included from i/usr/local/clang/include/absl/container/internal/layout.hn:s198e:
rIn file included from t/usr/local/clang/include/absl/strings/str_cat.h_:o116r:
_In file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:s23i:
g/usr/local/clang/include/absl/strings/numbers.hn:_166i:m57p:l ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
&, &  &166, |  bfoaolls es,a ffea_lsster,t
o      u| 8  ^_
ba/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:e135(:a16b:s lnote: :expanded from macro 'ABSL_INTERNAL_X':
str  i135n | g _ v i e w   t e x tt,h iusi)n)t)8 _AtB*S La_bAsTlT_RnIoBnUnTuEl_lL IvFaElTuIeM,E
_      B| O                                                        ^U
ND/usr/local/clang/include/absl/base/nullability.h :{241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l\l
       _| N               ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l32l:
9      :|                       ^
note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTIn file included from Es2geography/distance.ccR:N2A:
LIn file included from _s2geography/distance.hI:F4_:
fIn file included from as2geography/geography.hl:s4e:
(In file included from i../src/s2/s2polygon.hf:_34s:
aIn file included from t../src/s2/mutable_s2shape_index.hi:s30f:
iIn file included from e/usr/local/clang/include/absl/container/btree_map.hd:,66 :
.In file included from ./usr/local/clang/include/absl/container/internal/btree.h.:)70 :
_In file included from _/usr/local/clang/include/absl/container/internal/layout.hV:A198_:
AIn file included from R/usr/local/clang/include/absl/strings/str_cat.hG:S116_:
_In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23        ^:

/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:In file included from 23s2geography/coverings.cc:
:/usr/local/clang/include/absl/strings/numbers.h2::
170In file included from :s2geography/coverings.h59::6 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/geography.h
:4:
In file included from ../src/s2/s2polygon.h  :17029 | :
bIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.ho:l45 :
s/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:f207e:_3s:t rwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
u32_  b207a | s e (AaBbSsLl_:I:NsTtErRiNnAgL__vXi(eiwn steerxtt_,o ru_iansts3i2g_nt,*  ianbsselr_tn_oonrn_ualsls ivganl_uiem,p
l      ,|                                                            ^&
&,/usr/local/clang/include/absl/base/nullability.h :&241&:,22 :f anote: lexpanded from macro 'absl_nonnull's
e,   241t | r#udee,f
i      n| e  ^ 
ab/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l133_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _Nonnu  l133l | 
        |                       ^ 
      ABSL_INTERNALIn file included from _s2geography/distance.ccA:T2T:
RIn file included from Is2geography/distance.hB:U4T:
EIn file included from _s2geography/geography.hC:A4P:
TIn file included from U../src/s2/s2polygon.hR:E34D:
_In file included from B../src/s2/mutable_s2shape_index.hY:(30t:
hIn file included from i/usr/local/clang/include/absl/container/btree_map.hs:)66):
,In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 172 : 59 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                                    ^
  172/usr/local/clang/include/absl/container/internal/common.h | :b32o:o9l:  snote: amacro 'ABSL_INTERNAL_IF_false' defined heref
e_s   t32r | t#odue6f4i_nbea sAeB(SaLb_sIlN:T:EsRtNrAiLn_gI_Fv_ifeawl stee(xitf,_ suaitnits6f4i_etd*,  a.b.s.l)_ n_o_nVnAu_lAlR GvSa_l_u
e      ,| 
        ^      
|                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2geography/coverings.cc
:2  :
241In file included from  | s2geography/coverings.h#:d6e:
fIn file included from is2geography/geography.hn:e4 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:n45u:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 207_:N3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l
      |                        ^207
 |   ABSL_INTERNAL_X(insert_In file included from os2geography/distance.ccr:_2a:
sIn file included from ss2geography/distance.hi:g4n:
,In file included from  s2geography/geography.hi:n4s:
eIn file included from r../src/s2/s2polygon.ht:_34o:
rIn file included from _../src/s2/mutable_s2shape_index.ha:s30s:
iIn file included from g/usr/local/clang/include/absl/container/btree_map.hn:_66i:
mIn file included from p/usr/local/clang/include/absl/container/internal/btree.hl:,70 :
&In file included from &/usr/local/clang/include/absl/container/internal/layout.h,: 198&:
&In file included from ,/usr/local/clang/include/absl/strings/str_cat.h :f116a:
lIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.he:,23 :
t/usr/local/clang/include/absl/strings/numbers.hr:u175e:,41
:       | warning:   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:  16175: |   note:  expanded from macro 'ABSL_INTERNAL_X' 
      135  |                      t h i s ) ) )a bAsBlS:L:_uAiTnTtR1I2B8U*T Ea_bLsIlF_EnToInMnEu_lBlO UvNaDl u{e ,   i n t   b a s e ) ; 
        |                                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    \241
 |       #| d               ^e
fi/usr/local/clang/include/absl/container/internal/common.hn:e31 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_true' defined heren
onn   u31l | l# d_eNfoinnneu lAlB
S      L| _                     ^I
NTERNAL_IF_true(if_satisfied, ...) if_satisIn file included from fs2geography/distance.cci:e2d:

In file included from       s2geography/distance.h| :        ^4
:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from In file included from s2geography/coverings.cc/usr/local/clang/include/absl/container/internal/layout.h::2198:
:
In file included from In file included from s2geography/coverings.h/usr/local/clang/include/absl/strings/str_cat.h::6116:
:
In file included from In file included from s2geography/geography.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::423:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2polygon.h::18229::
7In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h :45warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:207:3:   182warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]c
har* a  b207s | l _ nAoBnSnLu_lIlN TREoRuNnAdLT_rXi(piDnosuebrlte_ToorB_uafsfseirg(nd,o uibnlsee rdt,_ ocrh_aars*s iagbns_li_mnpoln,n u&l&l,  b&u&f,f efra)l;s
e      , | t      ^r
ue/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 note:   expanded from macro 'absl_nonnull'208
 |     241  |  # d e f i n e   a b s l _ n o.nfniurlslt ,_ Ncoonnnsutl_li
t      e| r                     ^a
tor ABSLIn file included from _s2geography/distance.ccI:N2T:
EIn file included from Rs2geography/distance.hN:A4L:
_In file included from Cs2geography/geography.hO:M4M:
AIn file included from )../src/s2/s2polygon.h;:
34      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/btree_map.h::13566::
11In file included from :/usr/local/clang/include/absl/container/internal/btree.h :note: 70expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198  :
135In file included from  | /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h :t182h:i60s:) )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L182_ | AcThTaRrI*B UaTbEs_lL_InFoEnTnIuMll REo_uBnOdUTNrDi p{D o u b l e T o B u f f e r ( d o u b l e   d ,   c h a r *  \a
b      s| l          ^~~~_
nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/strings/str_cat.h::209116::
3In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :warning: 23passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/strings/numbers.h:183:58  :209  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L183_ | IcNhTaErR*N AaLb_sXl(_innosnenrutl_lo rR_oausnsdiTgrni,p FilnosaetrTto_Bourf_faesrs(ifglno_aitm pfl,,  c&h&a,r *& &a,b stlr_uneo,n nfuallls beu,f
f      e| r  ^)
;
      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                                                         ^133
:52/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'ABSL_INTERNAL_X'22
: note:   expanded from macro 'absl_nonnull'133
 |     241  |  # d e f i n eA BaSbLs_lI_NnToEnRnNuAlLl_ A_TNToRnInBuUlTlE
_      C| A                     ^P
TURED_BY(this)),     In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h\:
30      :
| In file included from                                                    ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/btree.h::3170::
9In file included from :/usr/local/clang/include/absl/container/internal/layout.h :note: 198macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:   11631:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e191 :A42B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTE  R191N | AsLi_zIeF__tt rSuiex(Diifg_istastTiosBfuifefde,r (.d.ouble. )d ,i fc_hsaart*i safbiseld_
n      o| n        ^n
ull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2geography/coverings.cc22::2 :
note: In file included from expanded from macro 'absl_nonnull's2geography/coverings.h
:6  :
241In file included from  | s2geography/geography.h#:d4e:
fIn file included from i../src/s2/s2polygon.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l45_:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n209n:u3l:l  warning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
onnull  
209       | |                       ^ 
ABSL_INTERNAL_X(insIn file included from es2geography/distance.ccr:t2_:
oIn file included from rs2geography/distance.h_:a4s:
sIn file included from is2geography/geography.hg:n4,:
 In file included from i../src/s2/s2polygon.hn:s34e:
rIn file included from t../src/s2/mutable_s2shape_index.h_:o30r:
_In file included from a/usr/local/clang/include/absl/container/btree_map.hs:s66i:
gIn file included from n/usr/local/clang/include/absl/container/internal/btree.h_:i70m:
pIn file included from l/usr/local/clang/include/absl/container/internal/layout.h,: 198&:
&In file included from ,/usr/local/clang/include/absl/strings/str_cat.h :&116&:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ht:r23u:
e/usr/local/clang/include/absl/strings/numbers.h,: 198f:a7l:s ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  198 |   c210h | a r *   a b s l _ n o n n u l l   F a.sftiIrnsttT,o Bcuofnfsetr_(iitnetr3a2t_otr  iA,B ScLh_aIrN*T EaRbNsAlL__nCoOnMnMuAl)l; 
b      u| f                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
er)/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:      133| :      ^47
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'241
:22:   note: 133expanded from macro 'absl_nonnull' | 
     241  |  # d e f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(thIn file included from is2geography/distance.ccs:)2):
,In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h\:
70      :
| In file included from                                               ^~~~/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h23::
209/usr/local/clang/include/absl/strings/numbers.h::3198:: 53warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
warning: /usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
135:16:   198note:  | expanded from macro 'ABSL_INTERNAL_X'c
har  *135  | a b s l _ n o n n u ltlh iFsa)s)t)I nAtBTSoLB_uAfTfTeRrI(BiUnTtE3_2L_ItF EiT,I McEh_aBrO*U NaDb s{l _ n o n n u l l   b u f f e r ) 
        |                                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: \expanded from macro 'absl_nonnull'

      |                  ^241
 | #/usr/local/clang/include/absl/container/internal/common.hd:e32f:i9n:e  note: amacro 'ABSL_INTERNAL_IF_false' defined hereb
sl_   n32o | n#nduelfli n_eN oAnBnSuLl_lI
N      T| E                     ^R
NAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntTIn file included from os2geography/coverings.ccB:u2f:
fIn file included from es2geography/coverings.hr:(6u:
iIn file included from ns2geography/geography.ht:342:
_In file included from t../src/s2/s2polygon.h :n29,:
 In file included from c/usr/local/clang/include/absl/container/flat_hash_map.hh:a45r:
*/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a211b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null   211o | u t _AsBtSrL)_
I      N| T      ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L241_:X22(:i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen ,a bisnls_enrotn_nourl_la s_sNiognnn_uilmlp
l      ,|                       ^&
&, &&, truIn file included from es2geography/distance.cc,: 2t:
rIn file included from us2geography/distance.he:,4
:
      In file included from | s2geography/geography.h  ^:
4:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/s2polygon.h::13334::
52In file included from :../src/s2/mutable_s2shape_index.h :30note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
  In file included from 133/usr/local/clang/include/absl/container/internal/btree.h | : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h :A116B:
SIn file included from L/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:I23N:
T/usr/local/clang/include/absl/strings/numbers.hE:R200N:A54L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIB  U200T | Ec_hCaArP*T UaRbEsDl__BnYo(ntnhuilsl) )F,a s t I n t T o B u f f e r ( u i n t 3 2 _ t   n ,  \c
h      a| r                                                   ^*
 a/usr/local/clang/include/absl/container/internal/common.hb:s31l:_9n:o nnote: nmacro 'ABSL_INTERNAL_IF_true' defined hereu
ll    o31u | t#_dsetfri)n
e       | A                                                     ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_I  F241_ | t#rdueef(iinfe_ saabtsils_fnioendn,u l.l. ._)N oinfn_uslalt
i      s| f                     ^i
ed
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2geography/distance.cc
:2:
In file included from s2geography/distance.h:4  :
211In file included from  | s2geography/geography.h : 4A:
BIn file included from S../src/s2/s2polygon.hL:_34I:
NIn file included from T../src/s2/mutable_s2shape_index.hE:R30N:
AIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:X66(:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.hs:e70r:
tIn file included from _/usr/local/clang/include/absl/container/internal/layout.ho:r198_:
aIn file included from s/usr/local/clang/include/absl/strings/str_cat.hs:i116g:
nIn file included from ,/usr/local/clang/include/absl/strings/internal/stringify_sink.h :i23n:
s/usr/local/clang/include/absl/strings/numbers.he:r201t:_5o:r _warning: a'diagnose_if' is a clang extension [-Wgcc-compat]s
sig  n201_ | i m p l ,A B&S&L,_ I&N&T,E RtNrAuLe_,N EtErDu_eM,I
N      _| S  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~I
ZE(  o212u | t _ s t r ,   k F a s t T o B u f f e.rfSiirzset),; 
c      o| n    ^s
t_/usr/local/clang/include/absl/base/macros.hi:t251e:r18a:t onote: rexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
ABS  L251_ | I N T_E_RaNtAtLr_iCbOuMtMeA_)_;(
(      d| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
gno/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:e133_:i47f:( _note: _expanded from macro 'ABSL_INTERNAL_X'b
uil  t133i | n _ o b j e c t _ s iAzBeS(LO_bIjN,T E0R)N A<L _NA,T T\R
I      B| U                 ^T
E_CAPTURED_BYIn file included from (s2geography/distance.cct:h2i:
sIn file included from )s2geography/distance.h):,4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
\In file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                                              ^~~~:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h23::
211/usr/local/clang/include/absl/strings/numbers.h::3202:: 7warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
warning: /usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
135:16:   note: 202expanded from macro 'ABSL_INTERNAL_X' | 
cha  r135* |   a b s l _ n o n n utlhli sF)a)s)t IAnBtSTLo_BAuTfTfReIrB(UiTnEt_6L4I_FtE TiI,M Ec_hBaOrU*N Da b{s l _ n o n n u l l   b u f f e r ) 
        |        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                ^  
241 | /usr/local/clang/include/absl/container/internal/common.h#:d31e:f9i:n enote:  macro 'ABSL_INTERNAL_IF_true' defined herea
bsl   _31n | o#ndneufliln e_ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_IF_true(In file included from is2geography/distance.ccf:_2s:
aIn file included from ts2geography/distance.hi:s4f:
iIn file included from es2geography/geography.hd:,4 :
.In file included from .../src/s2/s2polygon.h.:)34 :
iIn file included from f../src/s2/mutable_s2shape_index.h_:s30a:
tIn file included from i/usr/local/clang/include/absl/container/btree_map.hs:f66i:
eIn file included from d/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
        ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202In file included from :s2geography/coverings.cc53::2 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/coverings.h
:6:
In file included from   s2geography/geography.h202: | 4c:
hIn file included from a../src/s2/s2polygon.hr:*29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l45_:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n211n:u3l:l  warning: F'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
stInt  T211o | B u fAfBeSrL(_iInNtT6E4R_NtA Li_,X (cihnasre*r ta_bosrl__ansosningunl,l  ibnusfefretr_)o
r      _| a                                                    ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241_:i22m:p lnote: ,expanded from macro 'absl_nonnull' 
&&  ,241  | &#&d,e ftirnuee ,a btsrlu_en,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l _  N212o | n n u l l 
        |                       ^ 
         .first, const_iterator ABSL_INTERNAL_COIn file included from Ms2geography/distance.ccM:A2):
;In file included from 
s2geography/distance.h      :| 4                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from s2geography/geography.h:4/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 135../src/s2/s2polygon.h::1134::
 In file included from note: ../src/s2/mutable_s2shape_index.hexpanded from macro 'ABSL_INTERNAL_X':
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:  66135:
 | In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from t/usr/local/clang/include/absl/strings/str_cat.hh:i116s:
)In file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h): 23A:
B/usr/local/clang/include/absl/strings/numbers.hS:L203_:A5T:T Rwarning: I'diagnose_if' is a clang extension [-Wgcc-compat]B
UTE  _203L | I F E T IAMBES_LB_OIUNNTDE R{N A L _ N E E D _ M I N _ S I Z E ( b u f f e r ,   k F a s t\T
o      B| u          ^~~~f
ferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                     ^233
:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTEIn file included from Rs2geography/distance.ccN:A2L:
_In file included from As2geography/distance.hT:T4R:
IIn file included from Bs2geography/geography.hU:T4E:
_In file included from C../src/s2/s2polygon.hA:P34T:
UIn file included from R../src/s2/mutable_s2shape_index.hE:D30_:
BIn file included from Y/usr/local/clang/include/absl/container/btree_map.h(:t66h:
iIn file included from s/usr/local/clang/include/absl/container/internal/btree.h):,70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                                                         ^~~~:
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/raw_hash_map.h  :241252 | :#63d:e fwarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
e abs  l252_ | n o n n u l lc o_nNsotn nkuelyl_
a      r| g                     ^<
K>& k ABSIn file included from Ls2geography/distance.cc_:I2N:
TIn file included from Es2geography/distance.hR:N4A:
LIn file included from _s2geography/geography.hA:T4T:
RIn file included from I../src/s2/s2polygon.hB:U34T:
EIn file included from _../src/s2/mutable_s2shape_index.hC:A30P:
TIn file included from U/usr/local/clang/include/absl/container/btree_map.hR:E66D:
_In file included from B/usr/local/clang/include/absl/container/internal/btree.hY:(70t:
hIn file included from i/usr/local/clang/include/absl/container/internal/layout.hs:)198,:

In file included from       /usr/local/clang/include/absl/strings/str_cat.h| :                                                              ^~~~116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_S/usr/local/clang/include/absl/container/internal/raw_hash_map.hI:Z267E:(75b:u fwarning: f'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
r, kF  a267s | t T o B u f f e r 1 2 8 S i z e ) ; 
        |      ^ 
 k/usr/local/clang/include/absl/base/macros.he:y251_:a18r:g <note: Kexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'>
&&   k251  | A B S_L__aItNtTrEiRbNuAtLe__A_T(T(RdIiBaUgTnEo_sCeA_PiTfU(R_E_Db_uBiYl(ttihni_so)b,j
e      c| t                                                                          ^~~~_
size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/strings/numbers.h::283208::6453::  warning: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    208283 |  | c h a r *   a b s l _ n o n n u l l   F a s t I n t T oABBuSfLf_eIrN(TuEiRnNtA1L2_8A TiT,R IcBhUaTrE*_ CaAbPsTlU_RnEoDn_nBuYl(lt hbiusf)f,e
r      )| 
                                                               ^~~~      
|                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 321F:a60s:t Iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
ToBuf  f321e | r ( i n t _ tkyepye_ air,g
<      K| >      ^&
& /usr/local/clang/include/absl/base/nullability.hk:e241y: 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iAnTeT RaIbBsl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:U4T:
EIn file included from _../src/s2/s2polygon.hC:A34P:
TIn file included from U../src/s2/mutable_s2shape_index.hR:E30D:
_In file included from B/usr/local/clang/include/absl/container/btree_map.hY:(66t:
hIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:)70):

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :                                                           ^~~~198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_IN/usr/local/clang/include/absl/container/internal/raw_hash_map.hT:E338R:N65A:L _warning: N'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
ED_MI  N338_ | S I Z E ( 
       c| o    ^n
st/usr/local/clang/include/absl/base/macros.h :k251e:y18_:a rnote: gexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'<
K>&   251k | e y  _A_BaStLt_rIiNbTuEtReN_A_L(_(AdTiTaRgInBoUsTeE__iCfA(P_T_UbRuEiDl_tBiYn(_tohbijse)c)t
_      s| i                                                                ^~~~z
e(Obj, 0) < N, \
      |                  ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #definIn file included from e ABSL_INTERNAL_IF_false(if_satisfied, ...) __VAs2geography/coverings.cc_:A2R:
GIn file included from Ss2geography/coverings.h_:_6
:
      In file included from | s2geography/geography.h        ^:
4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:In file included from 66s2geography/geography.cc:
:In file included from 2/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70s2geography/geography.h:
:In file included from 4/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198../src/s2/s2polygon.h:
:In file included from 34/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23/usr/local/clang/include/absl/container/btree_map.h:
:67:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/container/internal/btree_container.h::66522::413::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  522 |     66  | A B S L _ I N T E R N A L _ X ( i n s e r t _ o r _ a s s i ginn,t _itnyspeer*t _aobrs_la_snsoingnnu_lilm polu,t )c;o
n      s| t                                        ^ 
&, c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :& ,note: 
expanded from macro 'absl_nonnull'      
|   ^  
241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d511e:f52i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _511n | o n n u l l   _ N o nAnBuSlLl_
I      N| T                     ^E
RNAL_ATTRIBUTE_CAPTURED_BY(this)))          In file included from  s2geography/coverings.cc : 2 :
 In file included from  s2geography/coverings.h : 6 :
 In file included from  s2geography/geography.h : 4 :
\In file included from 
../src/s2/s2polygon.h      :| 34                                                   ^:

In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/internal/common.h::3032:
:In file included from 9/usr/local/clang/include/absl/container/btree_map.h:: 66note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70:
   In file included from 32/usr/local/clang/include/absl/container/internal/layout.h | :#198d:
eIn file included from f/usr/local/clang/include/absl/strings/str_cat.hi:n116e:
 In file included from A/usr/local/clang/include/absl/strings/internal/stringify_sink.hB:S23L:
_/usr/local/clang/include/absl/strings/numbers.hI:N77T:E61R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
IF_f   a77l | s[e[(niofd_issactairsdf]i]e db,o o.l. .S)i m_p_lVeAA_tAoRfG(Sa_b_s
l      :| :        ^s
tring_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2geography/geography.cc22::2 :
note: In file included from expanded from macro 'absl_nonnull's2geography/geography.h
:4  :
241In file included from  | ../src/s2/s2polygon.h#:d34e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l67_:
n/usr/local/clang/include/absl/container/internal/btree_container.ho:n525n:u30l:l  warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
onn  u525l | l 
        |                       ^ 
             false, true);
      |                              ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2geography/coverings.cc::4962::
9In file included from :s2geography/coverings.h :note: 6macro 'ABSL_INTERNAL_X' defined here:

In file included from s2geography/geography.h:4  :
496In file included from  | ../src/s2/s2polygon.h#:d34e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e30 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L66_:
IIn file included from N/usr/local/clang/include/absl/container/internal/btree.hT:E70R:
NIn file included from A/usr/local/clang/include/absl/container/internal/layout.hL:_198X:
(In file included from F/usr/local/clang/include/absl/strings/str_cat.hu:n116c:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hC:a23l:
l/usr/local/clang/include/absl/strings/numbers.he:e88,: 62K:Q uwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, MQ   u88a | l[,[ nKoVdailsucea,r dM]V]a lbuoeo,l  .S.i.m)p l e A t o\d
(      a| b        ^s
l::string_view str, double* absl_nonIn file included from ns2geography/distance.ccu:l2l:
 In file included from os2geography/distance.hu:t4):
;In file included from 
s2geography/geography.h      :| 4                                                             ^:

In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :../src/s2/mutable_s2shape_index.h22::30 :
In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nonnull':
66:
  In file included from 241/usr/local/clang/include/absl/container/internal/btree.h | :#70d:
eIn file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   ex/usr/local/clang/include/absl/container/internal/btree_container.hp:l524i:c3i:t  warning: Hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]fei
xn(e  P 524aob | i sn ltAe_BeSn*Lo _naInbNusTllEl_R nNu_AlLNl_oanXb(nluienl lsv
e,r       t| P_                     ^ao
drS_paescs isgpne,c  i=n saebrstl_:o:rk_NaosPsaIn file included from idg)ns2geography/coverings.cc
_:      i2| m                        ^p:

lIn file included from ,s2geography/coverings.h /usr/local/clang/include/absl/base/nullability.hc::o6257n:
:sIn file included from 23ts2geography/geography.h :&: ,4note:  expanded from macro 'absl_nullable':
c
oIn file included from n  s../src/s2/s2polygon.h257t: |  #34&d,:
e
fIn file included from       i../src/s2/mutable_s2shape_index.h| n  ^e:
 30a/usr/local/clang/include/absl/container/internal/btree_container.hb:
:sIn file included from 509l/usr/local/clang/include/absl/container/btree_map.h:_:52n66:u:
 lIn file included from lnote: aexpanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/internal/btree.hb
l:e70   _:
509NIn file included from  | u /usr/local/clang/include/absl/container/internal/layout.hl :l a198 b:
 lIn file included from  e /usr/local/clang/include/absl/strings/str_cat.h
 :       116|                        ^A:

BIn file included from S/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23I:
N/usr/local/clang/include/absl/strings/numbers.hT:E98R:N60A:L _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
TRIB   U98T | E[_[CnAoPdTiUsRcEaDr_dB]Y]( tbhoiosl) )S,i m p l e A t o b ( a b s l : : s t r i n g _ v i\e
w       | s                                                   ^t
r,/usr/local/clang/include/absl/container/internal/common.h :b32o:o9l:*  note: amacro 'ABSL_INTERNAL_IF_false' defined hereb
sl_   n32o | n#nduelfli noeu tA)B;S
L      _| I                                                           ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:I Fnote: _expanded from macro 'absl_nonnull'f
al  s241e | (#idfe_fsiantei safbiseld_,n o.n.n.u)l l_ __VNAo_nAnRuGlSl_
_      
|                            ^| 
        ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 524s2geography/coverings.cc::32::
 In file included from warning: s2geography/coverings.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
6:
In file included from s2geography/geography.h  :5244 | :
 In file included from  ../src/s2/s2polygon.hA:B34S:
LIn file included from _../src/s2/mutable_s2shape_index.hI:N30T:
EIn file included from R/usr/local/clang/include/absl/container/btree_map.hN:A66L:
_In file included from X/usr/local/clang/include/absl/container/internal/btree.h(:i70n:
sIn file included from e/usr/local/clang/include/absl/container/internal/layout.hr:t198_:
oIn file included from r/usr/local/clang/include/absl/strings/str_cat.h_:a116s:
sIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hg:n23,:
 /usr/local/clang/include/absl/strings/numbers.hi:n112s:e44r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_as  s112i | g n _ i m p l ,   c o n s t   & ,   c o n s t   & , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h :i511n:t52_:t ynote: pexpanded from macro 'ABSL_INTERNAL_X'e
*   a511b | s l _ n o n n u l l  AoBuStL)_;I
N      T| E                                           ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241A:T22T:R Inote: Bexpanded from macro 'absl_nonnull'U
TE  _241C | A#PdTeUfRiEnDe_ BaYb(stlh_inso)n)n)u l l   _ N o n n u l l 
        |                       ^ 
        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #deIn file included from fs2geography/coverings.cci:n2e:
 In file included from As2geography/coverings.hB:S6L:
_In file included from Is2geography/geography.hN:T4E:
RIn file included from N../src/s2/s2polygon.hA:L34_:
IIn file included from F../src/s2/mutable_s2shape_index.h_:t30r:
uIn file included from e/usr/local/clang/include/absl/container/btree_map.h(:i66f:
_In file included from s/usr/local/clang/include/absl/container/internal/btree.ha:t70i:
sIn file included from f/usr/local/clang/include/absl/container/internal/layout.hi:e198d:
,In file included from  /usr/local/clang/include/absl/strings/str_cat.h.:.116.:
)In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hi:f23_:
s/usr/local/clang/include/absl/strings/numbers.ha:t116i:s55f:i ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |         ^
  116 |               In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h :a524b:s3l:: :warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
t128*   a524b | s l _AnBoSnLn_uIlNlT EoRuNtA)L;_
X      (| i                                                      ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uilmlp l_,N ocnonnusltl 
&      ,|                       ^c
onst &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                 In file included from  s2geography/coverings.cc :f2a:
lIn file included from ss2geography/coverings.he:,6 :
tIn file included from rs2geography/geography.hu:e4):
;In file included from 
../src/s2/s2polygon.h      :| 34                  ~~~~~~~~~~~~:

In file included from ../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511/usr/local/clang/include/absl/container/btree_map.h::4766::
 In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'ABSL_INTERNAL_X':
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:  198511:
 | In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.hA:B118S:L56_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL  _118A | T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) )                          a b s l : : u i n t 1 2\8
*       | a                                              ^~~~b
sl_nonnull out)/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL;_
I      N| T                                                       ^E
RNAL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
EIn file included from _s2geography/distance.cc  C:A2412P | :
T#In file included from dUs2geography/distance.heR:Ef4Di:
_nIn file included from Bes2geography/geography.hY :(a4tb:
hsIn file included from il../src/s2/s2polygon.hs_:)n34)o:
,nIn file included from n u../src/s2/mutable_s2shape_index.h l: l30  :
 _In file included from  N/usr/local/clang/include/absl/container/btree_map.h o: n66 n:
 uIn file included from  l/usr/local/clang/include/absl/container/internal/btree.h l: 
70        :
 | In file included from                       ^/usr/local/clang/include/absl/container/internal/layout.h 
: 198 :
  /usr/local/clang/include/absl/strings/str_cat.h : 398\:
24      :|                                                ^~~~
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/container/internal/btree_container.h398: | 526 : 3A:l pwarning: hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
N/usr/local/clang/include/absl/container/internal/btree_container.hu:m511(:c52o:n snote: texpanded from macro 'ABSL_INTERNAL_X' 
cha  r511* |   a b s l _ n u l l aAbBlSeL _cI_NsTtErR N A/L/_ ANTOTLRIINBTU(TrEu_nCtAiPmTeU/ReExDp_lBiYc(itth)i
s      )| )                       ^)
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
       257  |  # d e f i n\e
       a| b                                                   ^s
l_/usr/local/clang/include/absl/container/internal/common.hn:u32l:l9a:b lnote: emacro 'ABSL_INTERNAL_IF_false' defined here 
_Nu   l32l | a#bdleef
i      n| e                      ^ 
ABSL_INTERNAL_IF_falseIn file included from (s2geography/coverings.cci:f2_:
sIn file included from as2geography/coverings.ht:i6s:
fIn file included from is2geography/geography.he:d4,:
 In file included from .../src/s2/s2polygon.h.:.34):
 In file included from _../src/s2/mutable_s2shape_index.h_:V30A:
_In file included from A/usr/local/clang/include/absl/container/btree_map.hR:G66S:
_In file included from _/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
        ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2geography/distance.cce:f2i:
nIn file included from es2geography/distance.h :aIn file included from 4bs2geography/geography.cc:
s:In file included from l2_s2geography/geography.hn:
:oIn file included from n4s2geography/geography.hn:
:uIn file included from l4l../src/s2/s2polygon.h :
_:In file included from N34../src/s2/s2polygon.ho:
n:In file included from n34../src/s2/mutable_s2shape_index.hu:
:lIn file included from 30l../src/s2/mutable_s2shape_index.h:

:In file included from       30/usr/local/clang/include/absl/container/btree_map.h| :
                     ^:In file included from 
66/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/container/internal/btree.h:
:70/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 529/usr/local/clang/include/absl/container/internal/layout.h::29198::
 /usr/local/clang/include/absl/strings/str_cat.hwarning: :431passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
15:   warning: 529type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
       431  |      c oIn file included from  n ss2geography/coverings.cc t :  c2 h :
a rIn file included from t*r s2geography/coverings.huaeb:,s l6t_r:
nuuIn file included from els2geography/geography.h)l;:a
4b      :
l| eIn file included from                             ^ ../src/s2/s2polygon.h
d:a34/usr/local/clang/include/absl/container/internal/btree_container.ht:
:aIn file included from 496(../src/s2/mutable_s2shape_index.h:):9 30:c:
 oIn file included from note: n/usr/local/clang/include/absl/container/btree_map.hmacro 'ABSL_INTERNAL_X' defined heres:
t66 :
  {In file included from 496 /usr/local/clang/include/absl/container/internal/btree.h | r#:edt70euf:
rinIn file included from n /usr/local/clang/include/absl/container/internal/layout.hep :iA198eB:
cSeIn file included from L__/usr/local/clang/include/absl/strings/str_cat.h.I:dNa116Tt:
EaRIn file included from (N/usr/local/clang/include/absl/strings/internal/stringify_sink.h)A:;L _23}X:

(/usr/local/clang/include/absl/strings/numbers.h      F:| u              ^156n
c:,55/usr/local/clang/include/absl/base/nullability.h ::C 257awarning: :ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23l
:e enote: ,  expanded from macro 'absl_nullable' 156
K | Q  ub257oa | lo#,dl eM fQisunaaelf ,a ebK_sVslat_lnruuetl,ol a8MbV_laebl ua_eNs,u el.l(.a.ab)lb e s
 l       :|                        ^:\
s
      | t        ^r
ing_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528In file included from :s2geography/coverings.cc3::2 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2geography/coverings.h
:6:
In file included from s2geography/geography.h  :5284 | :
 In file included from  ../src/s2/s2polygon.hA:B34S:
LIn file included from _../src/s2/mutable_s2shape_index.hI:N30T:
EIn file included from R/usr/local/clang/include/absl/container/btree_map.hN:A66L:
_In file included from X/usr/local/clang/include/absl/container/internal/btree.h(:i70n:
sIn file included from e/usr/local/clang/include/absl/container/internal/layout.hr:t198_:
oIn file included from r/usr/local/clang/include/absl/strings/str_cat.h_:a116s:
sIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hg:n23,:
 /usr/local/clang/include/absl/strings/numbers.hi:n158s:e57r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_ass  i158g | nb_oiomlp ls,a fceo_nssttr t&o,1 6c_obnasste (&a,b
s      l| :  ^:
st/usr/local/clang/include/absl/container/internal/btree_container.hr:i509n:g52_:v inote: eexpanded from macro 'ABSL_INTERNAL_X'w
 te  x509 |  t ,   i n t 1 6 _ tA*B SaLb_sIlN_TnEoRnNnAuLl_lA TvTaRlIuBeU,T
E      _| C                                                        ^A
PT/usr/local/clang/include/absl/base/nullability.hU:R241E:D22_:B Ynote: (expanded from macro 'absl_nonnull't
hi  s241) | )#,d e f i n e   a b s l _ n o n n u l l   _ N o n n\u
l      l| 
                                                   ^      
|                      ^/usr/local/clang/include/absl/container/internal/common.h
:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_IIn file included from Ns2geography/coverings.ccT:E2R:
NIn file included from As2geography/coverings.hL:_6I:
FIn file included from _s2geography/geography.ht:r4u:
eIn file included from (../src/s2/s2polygon.hi:f34_:
sIn file included from a../src/s2/mutable_s2shape_index.ht:i30s:
fIn file included from i/usr/local/clang/include/absl/container/btree_map.he:d66,:
 In file included from ./usr/local/clang/include/absl/container/internal/btree.h.:.70):
 In file included from i/usr/local/clang/include/absl/container/internal/layout.hf:_198s:
aIn file included from t/usr/local/clang/include/absl/strings/str_cat.hi:s116f:
iIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:
23      :
| /usr/local/clang/include/absl/strings/numbers.h        ^:
160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | boIn file included from os2geography/geography.ccl: 2s:
aIn file included from fs2geography/geography.he:_4s:
tIn file included from r../src/s2/s2polygon.ht:o343:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: 2warning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
ase(a  b528s | l : :AsBtSrLi_nIgN_TvEiReNwA LtIn file included from _es2geography/linear-referencing.ccXx:(t2i,:
n In file included from sis2geography/linear-referencing.hen:tr43t:
2__In file included from ots2geography/geography.hr*:_ 4aa:
sbIn file included from ss../src/s2/s2polygon.hli:_g29nn:
,oIn file included from n /usr/local/clang/include/absl/container/flat_hash_map.hni:unl43sl:
 eIn file included from vra/usr/local/clang/include/absl/container/hash_container_defaults.htl:_u19oe:
,rIn file included from _
/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha      :s| 59s                                                        ^:
i
In file included from g/usr/local/clang/include/absl/strings/cord.hn/usr/local/clang/include/absl/base/nullability.h:_:86i241:
m:p/usr/local/clang/include/absl/strings/cord_analysis.h22l:,:32  :cnote: 47expanded from macro 'absl_nonnull'o:
n s  warning: t241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  | 
&#,d    ec32of | nsisintez  ae&_b,st
 l      G_| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~nt
oE  sn529tn | i um al lt  e _d MN eo m non ru y lU s la 
g       e (|  ct                     ^ornu
set,  CtorrudeR)e;p
*       | a                  ~~~~~~~~~~~b
sl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o509n:n47u:l lIn file included from note:  s2geography/coverings.ccexpanded from macro 'ABSL_INTERNAL_X'r:e
p2):
;  
In file included from 509      s2geography/coverings.h | | :                                               ^6 
 :
 In file included from /usr/local/clang/include/absl/base/nullability.h s2geography/geography.h: :241 4: :
22 In file included from : ../src/s2/s2polygon.h A:note: Bexpanded from macro 'absl_nonnull'34S
:
LIn file included from   _../src/s2/mutable_s2shape_index.h241I: | N30#T:
dEeIn file included from RfN/usr/local/clang/include/absl/container/btree_map.hiAn:Le_66 A:
aTbIn file included from TsR/usr/local/clang/include/absl/container/internal/btree.hlI_:BnU70oTn:
En_In file included from uCl/usr/local/clang/include/absl/container/internal/layout.hAlP: T198_U:
NRIn file included from oE/usr/local/clang/include/absl/strings/str_cat.hnDn:_uB116lY:
l(In file included from 
t/usr/local/clang/include/absl/strings/internal/stringify_sink.h      h:| i                     ^23s
):
)/usr/local/clang/include/absl/strings/numbers.h,: 162 : 57 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       162  | In file included from  bs2geography/linear-referencing.cc o: o2 l:
  In file included from  ss2geography/linear-referencing.h a: f4 e:
 _In file included from \ss2geography/geography.ht
:r      t4| o:
                                              ^~~~6In file included from 
4../src/s2/s2polygon.h_:b29a:
s/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from e:/usr/local/clang/include/absl/container/flat_hash_map.h(528:a:43b3:
s:In file included from l :warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/hash_container_defaults.hs
t:/usr/local/clang/include/absl/container/internal/btree_container.hr19:i:
511nIn file included from :g/usr/local/clang/include/absl/container/internal/hash_function_defaults.h52_::v59i :
note: eIn file included from expanded from macro 'ABSL_INTERNAL_X'w/usr/local/clang/include/absl/strings/cord.h
 :t86  e:
511x/usr/local/clang/include/absl/strings/cord_analysis.h | t:, 50  : i49 n: t  6warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 4
 _ tA   *B 50Sa | Lbss_iIlzNe_T_nEtR oNGAnenLtuM_loArlTeT PRvrIeaBlcUuiTesEe,_MC
eA      mPo| TrU                                                        ^yR
UEs/usr/local/clang/include/absl/base/nullability.hDa_:gBeY241((:cto22hni:sst ) )Cnote: )o expanded from macro 'absl_nonnull'r 
d R e   p 241*   |  a# b sd l e_ fn io nne n  u alb ls   lr_ ne po n)\n;u
l
      l      |  |                                                    ^                                                ^_

N/usr/local/clang/include/absl/container/internal/common.ho:n/usr/local/clang/include/absl/base/nullability.hn31:u:l2419l::
22       note: :macro 'ABSL_INTERNAL_IF_true' defined here|                       ^note: 
expanded from macro 'absl_nonnull'

   31 |   #241d | e#fdienfei nAeB SaLb_sIlN_TnEoRnNnAuLl_lI In file included from F__Nts2geography/coverings.ccor:nu2ne:
u(In file included from lis2geography/coverings.hfl_:
s6      a:
| t                     ^In file included from i
ss2geography/geography.hf:i4e:
dIn file included from ,../src/s2/s2polygon.h :.34.:
.In file included from )../src/s2/mutable_s2shape_index.h In file included from :is2geography/linear-referencing.ccf30:_:
2sIn file included from :
a/usr/local/clang/include/absl/container/btree_map.hIn file included from t:is2geography/linear-referencing.hs66:f:
4iIn file included from :
e/usr/local/clang/include/absl/container/internal/btree.hIn file included from d:s2geography/geography.h
70:      :
4| In file included from :
        ^/usr/local/clang/include/absl/container/internal/layout.hIn file included from 
:../src/s2/s2polygon.h198::
29In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h116::
43In file included from In file included from :
s2geography/geography.cc/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from ::/usr/local/clang/include/absl/container/hash_container_defaults.h223::
:
19In file included from /usr/local/clang/include/absl/strings/numbers.h:
s2geography/geography.h:In file included from :165/usr/local/clang/include/absl/container/internal/hash_function_defaults.h4:::
3959In file included from ::
../src/s2/s2polygon.h In file included from :warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]34:
:
86In file included from :
../src/s2/mutable_s2shape_index.h  :/usr/local/clang/include/absl/strings/cord_analysis.h16530: | :
56 In file included from  :/usr/local/clang/include/absl/container/btree_map.h 56 :: 67  :
warning:  /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] : 
 528 :    3 56 : |   s warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] z
 e _ t     528 G  | ae tb EAssBtlSi:Lm_:aItiNeTndEFtRaN1iArLS_2hXa8(ri*enM seeamrobtr_syoUlrs__aagnseso(icngonnn,us tli nlCso errvdtaR_elopur*e_ a,asb ssiilg_nnn_toin mnpbulal,sl  ceroe)nps;)t;
 
&            ,| |                                                         ^                                      ^c
o
n/usr/local/clang/include/absl/base/nullability.hs:t/usr/local/clang/include/absl/base/nullability.h241 ::&24122,::
22       :note: |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'
note: 
expanded from macro 'absl_nonnull'    
529241 |    |  #241 d  | e f# id n ee  f a ib sn l e_ n  o na nb sult_rlunloe ,n_n uNtlornlune u_)Nl;lo

n            n| |                   ~~~~~~~~~~~                     ^u
l
l/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                     ^47
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_IIn file included from Ns2geography/coverings.ccT:E2R:
NIn file included from As2geography/coverings.hL:_6A:
TIn file included from Ts2geography/geography.hR:I4B:
UIn file included from T../src/s2/s2polygon.hE:_34C:
AIn file included from P../src/s2/mutable_s2shape_index.hT:U30R:
EIn file included from D/usr/local/clang/include/absl/container/btree_map.h_:B66Y:
(In file included from t/usr/local/clang/include/absl/container/internal/btree.hh:i70s:
)In file included from )/usr/local/clang/include/absl/container/internal/layout.h): 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 166 : 57 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \
        166|  |                                               ^~~~b
ool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnul/usr/local/clang/include/absl/container/internal/btree_container.hl: 532_:N24o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l
        | 532                     ^ | 
                  falsIn file included from es2geography/coverings.cc):;2
:
      In file included from | s2geography/coverings.h                       ^:
6:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2geography/geography.h::4964::
9In file included from :../src/s2/s2polygon.h :note: 34macro 'ABSL_INTERNAL_X' defined here:

In file included from ../src/s2/mutable_s2shape_index.h:30  :
496In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d66e:
fIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:e70 :
AIn file included from B/usr/local/clang/include/absl/container/internal/layout.hS:L198_:
IIn file included from N/usr/local/clang/include/absl/strings/str_cat.hT:E116R:
NIn file included from A/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23X:
(/usr/local/clang/include/absl/strings/numbers.hF:u168n:c59,:  Cwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lee,   168K | Qbuoaoll,  sMaQfuea_ls,t rKtVoaul1u6e_,b aMsVea(laubes,l :.:.s.t)r i n g _ v\i
e      w|          ^t
ext, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/container/internal/btree_container.h::198531:
:In file included from 3/usr/local/clang/include/absl/strings/str_cat.h:: 116warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
  /usr/local/clang/include/absl/strings/numbers.h531: | 170 : 59A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INTE  R170N | AbLo_oXl( isnasfeer_ts_torrt_oaus3s2i_gbna,s ei(nasbesrlt:_:osrt_raisnsgi_gvni_eiwm ptle,x tc,o nusitn t&3,2 _&t&*,  afbaslls_en,o
n      n| u  ^l
l /usr/local/clang/include/absl/container/internal/btree_container.hv:a509l:u52e:, 
      note: | expanded from macro 'ABSL_INTERNAL_X'                                                          ^

/usr/local/clang/include/absl/base/nullability.h  :509241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | A#BdSeLf_iInNeT EaRbNsAlL__nAoTnTnRuIlBlU T_EN_oCnAnPuTlUlR
E      D| _                     ^B
Y(this)),                In file included from  s2geography/coverings.cc : 2 :
 In file included from  s2geography/coverings.h : 6\:

In file included from       s2geography/geography.h| :                                                   ^4
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/common.h::3432:
:In file included from 9../src/s2/mutable_s2shape_index.h:: 30note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
   In file included from 32/usr/local/clang/include/absl/container/internal/btree.h | :#70d:
eIn file included from f/usr/local/clang/include/absl/container/internal/layout.hi:n198e:
 In file included from A/usr/local/clang/include/absl/strings/str_cat.hB:S116L:
_In file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:T23E:
R/usr/local/clang/include/absl/strings/numbers.hN:A172L:_59I:F _warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
lse(  i172f | _bsoaotli ssfaifeed_,s t.r.t.o)u 6_4__VbAa_sAeR(GaSb_s_l
:      :| s        ^t
ring_view tIn file included from es2geography/geography.ccx:t2,:
 In file included from us2geography/geography.hi:n4t:
6In file included from 4../src/s2/s2polygon.h_:t34*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l531 :v3a:l uwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],

      |                                                           ^  
531 | /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eXf(iinnes earbts_lo_rn_oansnsuilgln ,_ Nionnsneurltl_
o      r| _                     ^a
ssignIn file included from _s2geography/distance.cci:m2p:
lIn file included from ,s2geography/distance.h :c4o:
nIn file included from ss2geography/geography.ht: 4&:
,In file included from  ../src/s2/s2polygon.h&:In file included from &34s2geography/coverings.cc,:
 :In file included from f2../src/s2/mutable_s2shape_index.ha:
:lIn file included from 30ss2geography/coverings.h:
e:In file included from ,6/usr/local/clang/include/absl/container/btree_map.h
:
:      In file included from 66| s2geography/geography.h:
  ^:In file included from 
4/usr/local/clang/include/absl/container/internal/btree.h:
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from :70../src/s2/s2polygon.h511:
::In file included from 3452/usr/local/clang/include/absl/container/internal/layout.h:
::In file included from  198../src/s2/mutable_s2shape_index.h:
note: :expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/strings/str_cat.h30
::
501In file included from :  /usr/local/clang/include/absl/container/btree_map.h32511:: | 66  :
warning:  In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] /usr/local/clang/include/absl/container/internal/btree.h
 : 70    :
501 In file included from  |  v/usr/local/clang/include/absl/container/internal/layout.h oA:iB198dS :
LA_In file included from pI/usr/local/clang/include/absl/strings/str_cat.hpNe:TnE116dRP:
NiAIn file included from eL/usr/local/clang/include/absl/strings/internal/stringify_sink.hc_e:AsT23(T:
sRt/usr/local/clang/include/absl/strings/numbers.hIdB::U:175Ts:Et_41rCiA:nPg T*warning: U type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]RaE
bDs_lB_  Yn175(ot | n hn iu sl )l)  ) d  e   s t  ,  
          |                                  ^  
      /usr/local/clang/include/absl/base/nullability.h  :  241   :  22  :    a note:  expanded from macro 'absl_nonnull'b 
s l :  :\u241
i |       #n| td1                                                   ^e2
f8i/usr/local/clang/include/absl/container/internal/common.hn*:e 32 a:ab9bs:ls l_note: _macro 'ABSL_INTERNAL_IF_false' defined herenn
oon   nn32un | l#uld lel_fN iovnnaenl uAulBleS,
 L      _i| In                     ^Nt
T EbRaNsAeL)_;I
F      _| f                                        ^a
ls/usr/local/clang/include/absl/base/nullability.he:(241i:f22_:s anote: texpanded from macro 'absl_nonnull'i
sf  i241e | d#,d e.f.i.n)e  _a_bVsAl__AnRoGnSn_u_l
l       | _        ^N
onnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2geography/coverings.cc
:2:
  In file included from 534s2geography/coverings.h | : 6 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from t/usr/local/clang/include/absl/container/btree_map.hr:u66e:
)In file included from ;/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
                      ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 496/usr/local/clang/include/absl/strings/str_cat.h::9116::
 In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hmacro 'ABSL_INTERNAL_X' defined here:
23:
/usr/local/clang/include/absl/strings/numbers.h  :496182 | :#7d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e AB  S182L | _cIhNaTrE*R NaAbLs_lX_(nFounnncu,l lC aRloluened,T rKiQpuDaolu,b lMeQTuoaBlu,f fKeVra(lduoeu,b lMeV adl,u ec,h a.r.*. )a b s l _ n\o
n      n| u        ^l
l buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | /usr/local/clang/include/absl/container/internal/btree_container.hc:h533a:r3*:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_no  n533n | u l lA BRSoLu_nIdNTTrEiRpNDAoLu_bXl(eiTnosBeurftf_eorr(_daosusbilgen ,d ,i ncshearrt*_ oarb_sals_sniognnn_uilmpl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_lt rbuuef(fiefr_)s;a
t      i| s                                                           ^f
ied/usr/local/clang/include/absl/base/nullability.h,: 241.In file included from :.s2geography/distance.cc.22:):2  :
iIn file included from fnote: s2geography/distance.h_expanded from macro 'absl_nonnull':s
4a:
tIn file included from i  s2geography/geography.hs241f: | i4e#:
ddIn file included from e
f../src/s2/s2polygon.h      i:| n34        ^e:

 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hlIn file included from : s2geography/geography.cc70_:N:
2oIn file included from :
n/usr/local/clang/include/absl/container/internal/layout.hIn file included from n:s2geography/geography.hu198:l:
4l:
/usr/local/clang/include/absl/strings/str_cat.h
In file included from :      ../src/s2/s2polygon.h635| ::                     ^3436
:
:In file included from  ../src/s2/mutable_s2shape_index.h:warning: 30:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
  /usr/local/clang/include/absl/container/internal/btree_container.h635: | 533i:n3l:i nwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
voidIn file included from    Ss2geography/coverings.cc533t: | r 2A p:
ApIn file included from BeSs2geography/coverings.hnLd:_(I6sNt:
TdEIn file included from :R:s2geography/geography.hNs:At4Lr_:
iXIn file included from n(g../src/s2/s2polygon.hi*n: sa34eb:
rstIn file included from l__../src/s2/mutable_s2shape_index.honr:o_na30nsus:
lilIn file included from g)n/usr/local/clang/include/absl/container/btree_map.h ,{: }i66
n:
      sIn file included from | e                                   ^/usr/local/clang/include/absl/container/internal/btree.hr
t:_70/usr/local/clang/include/absl/base/nullability.ho:
:rIn file included from 241_/usr/local/clang/include/absl/container/internal/layout.h:a:22s198:s:
 iIn file included from note: gexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/str_cat.hn
_:i  m116241p:
 | l#de,f icnoen sIn file included from at/usr/local/clang/include/absl/strings/internal/stringify_sink.hb s:&l,23_ n:
&o/usr/local/clang/include/absl/strings/numbers.h&n,:n u183fla:ll 7s_:eN, o
warning: n      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
l
l
          534| 183 |                      ^ |  
c h a r *   a b s l _ n o n n u l lt In file included from rRs2geography/distance.ccuo:eu2)n:
;dIn file included from 
Ts2geography/distance.hr      i:| p4                  ~~~~~F:

lIn file included from os2geography/geography.h/usr/local/clang/include/absl/container/internal/btree_container.ha::t4511T:
:oIn file included from 47B../src/s2/s2polygon.h:u:f fnote: 34expanded from macro 'ABSL_INTERNAL_X'e:

rIn file included from (../src/s2/mutable_s2shape_index.hf  :l51130o | :
a tIn file included from   /usr/local/clang/include/absl/container/btree_map.h f:, 66  :
 cIn file included from  h/usr/local/clang/include/absl/container/internal/btree.h a:r *70  :
AaIn file included from Bb/usr/local/clang/include/absl/container/internal/layout.hsSl:L_198_n:
Io/usr/local/clang/include/absl/strings/str_cat.hNn:Tn636Eu:lR29lN:A  Lbwarning: _utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Af
fTeTr  R)636I; | B
vUo      TiE| d_       ^CSA
tPr/usr/local/clang/include/absl/base/nullability.hTAU:pR241pEe:Dn_22dB:(Y snote: (expanded from macro 'absl_nonnull'tt
dh:i  :ss241)t) | r)i# n dg *e   fai bn se l  _a n bo ns n lu l_ l n  od ne ns tu , l l c\ o
_nN      so| t                                              ^~~~n 
Anluplhla
N      u| m                     ^&
 a);
      |                             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2geography/coverings.cc::2412::
22In file included from :s2geography/coverings.h :note: 6expanded from macro 'absl_nonnull':

In file included from s2geography/geography.h  :2414 | :
#In file included from d../src/s2/s2polygon.he:f34i:
nIn file included from e../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l70l:
 In file included from _/usr/local/clang/include/absl/container/internal/layout.hN:o198n:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116
:
      In file included from | /usr/local/clang/include/absl/strings/internal/stringify_sink.h                     ^:
23:
/usr/local/clang/include/absl/strings/numbers.h:183/usr/local/clang/include/absl/container/internal/btree_container.h::58536:: 24warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
  s2geography/distance.cc183:   | 2536c:
h | In file included from a s2geography/distance.hr :* 4  :
 aIn file included from  bs2geography/geography.h s:l 4_ :
n oIn file included from  n../src/s2/s2polygon.h n: u34 l:
 lIn file included from   ../src/s2/mutable_s2shape_index.h R: o30uf:
nadIn file included from lT/usr/local/clang/include/absl/container/btree_map.hsr:ei66)p:
;FIn file included from 
l/usr/local/clang/include/absl/container/internal/btree.h      o:a| 70t                       ^:
T
In file included from o/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/layout.hB::u496198f:f:
9e/usr/local/clang/include/absl/strings/str_cat.h:r:( 637fnote: l:macro 'ABSL_INTERNAL_X' defined hereo29
a:t    496warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | ,
# dc  eh637fa | irv*n oaei bdAs BSlS_Lnto_rnInANupTplEelRnN dAb(Lsu_tfXd(f:F:eusnrt)cr,;i 
nCg      a*| l                                                         ^ la
ebe/usr/local/clang/include/absl/base/nullability.hs,:l _241KnQo:una22nlu:,l  lMnote:  Qdexpanded from macro 'absl_nonnull'ue
aslt  ,, 241 K | cV#oadnelsfutie ,nAe  lMapVbhaalsNuulem_,&n  .oan.,n.
)u       l|                              ^l 
  _ /usr/local/clang/include/absl/base/nullability.hN\:
o241      n:| n22        ^u:
l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70In file included from :
s2geography/distance.ccIn file included from :/usr/local/clang/include/absl/container/internal/layout.h2::
198In file included from :
s2geography/distance.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h4::
116In file included from :
s2geography/geography.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h4::
23In file included from :
../src/s2/s2polygon.h/usr/local/clang/include/absl/strings/numbers.h::34191:
:In file included from 42../src/s2/mutable_s2shape_index.h:: 30warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
  In file included from 191/usr/local/clang/include/absl/container/internal/btree.h | :s/usr/local/clang/include/absl/container/internal/btree_container.h70i::
z535In file included from e:/usr/local/clang/include/absl/container/internal/layout.h_3:t:198  :
S/usr/local/clang/include/absl/strings/str_cat.hwarning: :ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]639x
:D29i:  g 535i | twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s 
TAoB  BSu639fL | f_evIorNiT(dEd RoSNutbArLlA_epX p(dein,n dsc(ehsrtatd_r:o:*r s_taabrssislnig_g*nn ,oa nbinsnuls_lenlrot n_bnouurlf_laf sedrs)ei;sg
tn,      _ i| c                                         ^mop
nls/usr/local/clang/include/absl/base/nullability.h,t : cA241oln:psht22a :N&u, m &note: & &expanded from macro 'absl_nonnull'a,,
 
t        r241| u                            ^ | e
#,d
/usr/local/clang/include/absl/base/nullability.he      :f| 241  ^i:n
22e:/usr/local/clang/include/absl/container/internal/btree_container.h  :anote: 509expanded from macro 'absl_nonnull'b:
s52l  :_241 nnote:  | oexpanded from macro 'ABSL_INTERNAL_X'#n
dneu  lf509il | n  e_  N ao bn sn lu _ lnl o 
nAn      BuS| lLl                     ^_ I
_NNToEnRnNuAlLl_
A      T| T                     ^R
IBIn file included from Us2geography/coverings.ccT:E2_:
CIn file included from As2geography/coverings.hP:T6U:
RIn file included from Es2geography/geography.hD:_4In file included from B:
s2geography/distance.ccYIn file included from :(../src/s2/s2polygon.h2t::
h34In file included from i:
s2geography/distance.hsIn file included from :)../src/s2/mutable_s2shape_index.h4)::
,30In file included from  :
s2geography/geography.h In file included from : /usr/local/clang/include/absl/container/btree_map.h4 ::
 66In file included from  :
../src/s2/s2polygon.h In file included from : /usr/local/clang/include/absl/container/internal/btree.h34 ::
 70In file included from  :
../src/s2/mutable_s2shape_index.h In file included from : /usr/local/clang/include/absl/container/internal/layout.h30 : :
198 In file included from  :
/usr/local/clang/include/absl/container/btree_map.h In file included from : /usr/local/clang/include/absl/strings/str_cat.h66 ::
 116In file included from  :
/usr/local/clang/include/absl/container/internal/btree.h In file included from : /usr/local/clang/include/absl/strings/internal/stringify_sink.h70\::

23In file included from       :
/usr/local/clang/include/absl/container/internal/layout.h| /usr/local/clang/include/absl/strings/numbers.h:                                                   ^:198
198:
:/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/strings/str_cat.h7:::31641 ::9warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
  note: warning: macro 'ABSL_INTERNAL_IF_true' defined here  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
198
 |    c31h   | a641#r | dv*e ofaiibdn selS t_ArBnASopLpn_eInnNduT(lEsRltN dFA:a:Lss_ttIrFiI_ntngrt*u Tea(obisBflu__fsnafotneinrs(ufliilen tdd,3e s2.t_.,. t) ci ,oin fsc_tsh aaAtrlip*shf aiNeaudmb
&s       l| a        ^_,

n      o| n                            ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241b:In file included from u22s2geography/geography.ccf::f 2enote: :
expanded from macro 'absl_nonnull'rIn file included from 
)s2geography/geography.h
  :      2414|  | :
#      ^In file included from d
../src/s2/s2polygon.he:/usr/local/clang/include/absl/base/nullability.hf34i::
n241In file included from e:../src/s2/mutable_s2shape_index.h 22:a:30b :
snote: In file included from lexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/btree_map.h_
:n67  o:
n/usr/local/clang/include/absl/container/internal/btree_container.h241n:u | 535l#:ld3 e:_f Niwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]nn
neu la  lb535
s |        l|  _                     ^An
BoSnLn_uIlNlT E_RNNoAnLn_uXl(li
In file included from n      s2geography/distance.ccs| :e                     ^2r
:
tIn file included from _s2geography/distance.ho:r4_:
aIn file included from ss2geography/geography.hs:i4g:
nIn file included from ,In file included from ../src/s2/s2polygon.h s2geography/coverings.cc:i:34n2:
s:
In file included from eIn file included from ../src/s2/mutable_s2shape_index.hrs2geography/coverings.h:t:30_6:
o:
In file included from rIn file included from /usr/local/clang/include/absl/container/btree_map.h_s2geography/geography.h:a:66s4:
s:
In file included from iIn file included from /usr/local/clang/include/absl/container/internal/btree.hg../src/s2/s2polygon.h:n:70_34:
i:
In file included from mIn file included from /usr/local/clang/include/absl/container/internal/layout.hp../src/s2/mutable_s2shape_index.h:l:198,30:
 :
/usr/local/clang/include/absl/strings/str_cat.hcIn file included from :o/usr/local/clang/include/absl/container/btree_map.h646n::s6636t:
: In file included from  &/usr/local/clang/include/absl/container/internal/btree.hwarning: ,:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 70
&:
&In file included from ,   /usr/local/clang/include/absl/container/internal/layout.h646t: | ri198une:
l,i
In file included from n      e/usr/local/clang/include/absl/strings/str_cat.h|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:v
o116i  :
d536 In file included from  | S /usr/local/clang/include/absl/strings/internal/stringify_sink.ht :r 23A p:
 p/usr/local/clang/include/absl/strings/numbers.h e: n 198d :( 53s t: d  : :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s 
t r if  na198gl* | sc eah)ba;rs
*l       _a| nb                  ~~~~~~so
nln_u/usr/local/clang/include/absl/container/internal/btree_container.hnlo:ln509 n:du47el:ls  tFnote: aexpanded from macro 'ABSL_INTERNAL_X',s
t Ic  on509nt | Tso tB  u fA lf pe rh (ai Nn tu m3A2&B_ SatL,_ 
Ii      N,| T                                    ^cE
RhNa/usr/local/clang/include/absl/base/nullability.hAr:L*241_ :Aa22bT:sTl R_note: Iexpanded from macro 'absl_nonnull'nB
oU  nT241nE | u_#lCdAleP fTibUunRfeE Dfa_ebBrs)Yl(
_t      nh| o                                                    ^in
sn)u)/usr/local/clang/include/absl/base/nullability.hl,l:   241_ :N o22 n: n  u note: l l expanded from macro 'absl_nonnull'
 
       |                         ^ 241
  |  # d e f i n e   a\b
s      l| _                                              ^~~~n
onnull _/usr/local/clang/include/absl/container/internal/btree_container.hN:o535n:n3u:l lwarning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
| /usr/local/clang/include/absl/container/internal/btree_container.h                     ^:
511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32In file included from  | s2geography/coverings.cc#:d2e:
fIn file included from is2geography/coverings.hn:e6 :
AIn file included from Bs2geography/geography.hS:L4_:
IIn file included from N../src/s2/s2polygon.hT:E34R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_30I:
FIn file included from _/usr/local/clang/include/absl/container/btree_map.hf:a66l:
sIn file included from e/usr/local/clang/include/absl/container/internal/btree.h(:i70f:
_In file included from s/usr/local/clang/include/absl/container/internal/layout.ha:t198i:
sIn file included from f/usr/local/clang/include/absl/strings/str_cat.hi:e116d:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h.:.23.:
)/usr/local/clang/include/absl/strings/numbers.h :_199_:V5A:_ Awarning: R'diagnose_if' is a clang extension [-Wgcc-compat]G
S__
        199|  |         ^ 
   ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_objIn file included from es2geography/geography.ccc:t2_:
sIn file included from is2geography/geography.hz:e4(:
OIn file included from b../src/s2/s2polygon.hj:,34 :
0In file included from )../src/s2/mutable_s2shape_index.h :<30 :
NIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :\67
:
      | /usr/local/clang/include/absl/container/internal/btree_container.h                 ^:
538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |               In file included from  s2geography/coverings.cc : 2 :
tIn file included from rs2geography/coverings.hu:e6):
;In file included from 
s2geography/geography.h      :| 4                      ^:

In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/container/internal/btree_container.h34::
496In file included from :../src/s2/mutable_s2shape_index.h9::30 :
note: In file included from macro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h496: | 70#:
dIn file included from e/usr/local/clang/include/absl/container/internal/layout.hf:i198n:
eIn file included from  /usr/local/clang/include/absl/strings/str_cat.hA:B116S:
LIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hI:N23T:
E/usr/local/clang/include/absl/strings/numbers.hR:N200A:L7_:X (warning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
nc,   C200a | lclheaer,*  KaQbusall_,n oMnQnuualll,  FKaVsatlIunet,T oMBVuaflfueer,( u.i.n.t)3 2 _ t   n\,
       c| h        ^a
r* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/str_cat.h::537116::
3In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :warning: 23passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/strings/numbers.h:200:54  :537  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _200I | NcThEaRrN*A La_bXs(li_nnsoenrntu_lolr _FaassstiIgnnt,T oiBnusfefretr_(ouri_nats3s2i_gtn _ni,m pclh,a rc*o nasbts l&_,n o&n&n,u ltlr uoeu,t
_      s| t  ^r
)
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 509                                                     ^:
52: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'241
:22:   note: 509expanded from macro 'absl_nonnull' | 
     241  |  # d e f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #definIn file included from es2geography/coverings.cc :A2B:
SIn file included from Ls2geography/coverings.h_:I6N:
TIn file included from Es2geography/geography.hR:N4A:
LIn file included from _../src/s2/s2polygon.hI:F34_:
tIn file included from r../src/s2/mutable_s2shape_index.hu:e30(:
iIn file included from f/usr/local/clang/include/absl/container/btree_map.h_:s66a:
tIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:f70i:
eIn file included from d/usr/local/clang/include/absl/container/internal/layout.h,: 198.:
.In file included from ./usr/local/clang/include/absl/strings/str_cat.h): 116i:
fIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:a23t:
i/usr/local/clang/include/absl/strings/numbers.hs:f201i:e5d:
       warning: | 'diagnose_if' is a clang extension [-Wgcc-compat]        ^

  201 |     ABSL_INIn file included from Ts2geography/geography.ccE:R2N:
AIn file included from Ls2geography/geography.h_:N4E:
EIn file included from D../src/s2/s2polygon.h_:M34I:
NIn file included from _../src/s2/mutable_s2shape_index.hS:I30Z:
EIn file included from (/usr/local/clang/include/absl/container/btree_map.ho:u67t:
_/usr/local/clang/include/absl/container/internal/btree_container.hs:t537r:,3 :k Fwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
tToBu  f537f | e r SAiBzSeL)_;I
N      T| E    ^R
NA/usr/local/clang/include/absl/base/macros.hL:_251X:(18i:n snote: eexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'r
t_o  r251_ | a s s_i_gant,t riinbsuetret___o(r(_daisasgingons_ei_mipfl(,_ _cbounislt t&i,n _&o&b,j etcrtu_es,i
z      e| (  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~O
bj  ,538  | 0 )   <   N ,   \ 
        |                   ^ 
     true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 509s2geography/coverings.cc::472::
 In file included from note: s2geography/coverings.hexpanded from macro 'ABSL_INTERNAL_X':
6:
In file included from s2geography/geography.h  :5094 | :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L66_:
IIn file included from N/usr/local/clang/include/absl/container/internal/btree.hT:E70R:
NIn file included from A/usr/local/clang/include/absl/container/internal/layout.hL:_198A:
TIn file included from T/usr/local/clang/include/absl/strings/str_cat.hR:I116B:
UIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hE:_23C:
A/usr/local/clang/include/absl/strings/numbers.hP:T202U:R7E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(th  i202s | )c)h,a r *   a b s l _ n o n n u l l   F a s t I n t T\o
B      u| f                                              ^~~~f
er(int64/usr/local/clang/include/absl/container/internal/btree_container.h_:t537 :i3,:  cwarning: hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
r/usr/local/clang/include/absl/container/internal/btree_container.h*: 511a:b52s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l511l |   b u f f e r ) 
        | A      ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_A  T241T | R#IdBeUfTiEn_eC AaPbTsUlR_EnDo_nBnYu(ltlh i_sN)o)n)n u l l 
        |                       ^ 
            In file included from  s2geography/coverings.cc : 2 :
\In file included from 
s2geography/coverings.h      :| 6                                                   ^:

In file included from s2geography/geography.h/usr/local/clang/include/absl/container/internal/common.h::431:
:In file included from 9../src/s2/s2polygon.h:: 34note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
../src/s2/mutable_s2shape_index.h:30   :
31In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d66e:
fIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:e70 :
AIn file included from B/usr/local/clang/include/absl/container/internal/layout.hS:L198_:
IIn file included from N/usr/local/clang/include/absl/strings/str_cat.hT:E116R:
NIn file included from A/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23I:
F/usr/local/clang/include/absl/strings/numbers.h_:t202r:u53e:( iwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
sat  i202s | fciheadr,*  .a.b.s)l _info_nsnautlils fFiaesdt
I      n| t        ^T
oBuffer(int64In file included from _s2geography/geography.cct: 2i:
,In file included from  s2geography/geography.hc:h4a:
rIn file included from *../src/s2/s2polygon.h :a34b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:
 /usr/local/clang/include/absl/container/internal/btree_container.hb:u537f:f3e:r )warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                                                     ^  
537 | /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eXf(iinnes earbts_lo_rn_oansnsuilgln ,_ Nionnsneurltl_
o      r| _                     ^a
ssign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~In file included from 
s2geography/coverings.cc:2/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511s2geography/coverings.h::476::
 In file included from s2geography/geography.hnote: :expanded from macro 'ABSL_INTERNAL_X'4
:
In file included from ../src/s2/s2polygon.h:  34511:
 | In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from A/usr/local/clang/include/absl/container/internal/btree.hB:S70L:
_In file included from I/usr/local/clang/include/absl/container/internal/layout.hN:T198E:
RIn file included from N/usr/local/clang/include/absl/strings/str_cat.hA:L116_:
AIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hT:R23I:
B/usr/local/clang/include/absl/strings/numbers.hU:T203E:_5C:A Pwarning: T'diagnose_if' is a clang extension [-Wgcc-compat]U
RED  _203B | Y ( t h iAsB)S)L)_ I N T E R N A L _ N E E D _ M I N _ S I Z E ( b\u
f      f| e                                              ^~~~r
, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24:In file included from  s2geography/coverings.cc:warning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from s2geography/coverings.h:  6541:
 | In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34:
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
fIn file included from a/usr/local/clang/include/absl/container/internal/btree.hl:s70e:
)In file included from ;/usr/local/clang/include/absl/container/internal/layout.h
:      198| :
                       ^In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 496/usr/local/clang/include/absl/strings/internal/stringify_sink.h::923::
 /usr/local/clang/include/absl/strings/numbers.hnote: :macro 'ABSL_INTERNAL_X' defined here204
:7:   warning: 496type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#define   A204B | ScLh_aIrN*T EaRbNsAlL__nXo(nFnuunlcl,  FCaasltlIenet,T oKBQuufafle,r (MuQiunatl6,4 _KtV ail,u ec,h aMrV*a laubes,l _.n.o.n)n u l l   b\u
f      f| e        ^r
)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull Fast/usr/local/clang/include/absl/container/internal/btree_container.hI:n540t:T3o:B uwarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f
er(u  i540n | t 6 4A_BtS Li_,I NcThEaRrN*A La_bXs(li_nnsoenrntu_lolr _bausfsfiegrn),
       i| n                                                     ^s
er/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  _241i | m#pdle,f i&n&e,  acbosnls_tn o&n,n uflall s_eN,o
n      n| u  ^l
l
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                     ^509
:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_In file included from Cs2geography/coverings.ccA:P2T:
UIn file included from Rs2geography/coverings.hE:D6_:
BIn file included from Ys2geography/geography.h(:t4h:
iIn file included from s../src/s2/s2polygon.h):)34,:
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116\:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                                                   ^23
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/container/internal/common.h::20532::59::  warning: note: 'diagnose_if' is a clang extension [-Wgcc-compat]macro 'ABSL_INTERNAL_IF_false' defined here

     20532 |  |  # d e fAiBnSeL _AIBNSTLE_RINNATLE_RNNEAELD__IMFI_Nf_aSlIsZeE((ibfu_fsfaetri,s fkiFeads,t T.o.B.u)f f_e_rVSAi_zAeR)G;S
_      _| 
    ^      
|         ^/usr/local/clang/include/absl/base/macros.h
:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  In file included from 251s2geography/geography.cc | : 2 :
_In file included from _s2geography/geography.ha:t4t:
rIn file included from i../src/s2/s2polygon.hb:u34t:
eIn file included from _../src/s2/mutable_s2shape_index.h_:(30(:
dIn file included from i/usr/local/clang/include/absl/container/btree_map.ha:g67n:
o/usr/local/clang/include/absl/container/internal/btree_container.hs:e540_:i3f:( _warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
uilt  i540n | _ o bAjBeScLt__IsNiTzEeR(NOAbLj_,X (0i)n s<e rNt,_ o\r
_      a| s                 ^s
ign, insert_oIn file included from rs2geography/coverings.cc_:a2s:
sIn file included from is2geography/coverings.hg:n6_:
iIn file included from ms2geography/geography.hp:l4,:
 In file included from &../src/s2/s2polygon.h&:,34 :
cIn file included from o../src/s2/mutable_s2shape_index.hn:s30t:
 In file included from &/usr/local/clang/include/absl/container/btree_map.h,: 66f:
aIn file included from l/usr/local/clang/include/absl/container/internal/btree.hs:e70,:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :  ^198
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/str_cat.h::511116::
52In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :note: 23expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/strings/numbers.h:206:7  :511  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      206  |  c h aArB*S La_bIsNlT_EnRoNnAnLu_lAlT TFRaIsBtUITnEt_TCoABPuTfUfReErD(_iBnYt(1t2h8i si),) )c h a r *   a b s l _ n o n n u l l   b u f f e r\)

            | |                                                    ^      ^

/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/base/nullability.h::32241::922::  note: note: macro 'ABSL_INTERNAL_IF_false' defined hereexpanded from macro 'absl_nonnull'

     24132 |  | ##ddeeffiinnee  aAbBsSlL__nIoNnTnEuRlNlA L__NIoFn_nfuallls
e      (| i                     ^f
_satisfied,In file included from  s2geography/coverings.cc.:.2.:
)In file included from  s2geography/coverings.h_:_6V:
AIn file included from _s2geography/geography.hA:R4G:
SIn file included from _../src/s2/s2polygon.h_:
34      :
| In file included from         ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnIn file included from us2geography/geography.ccl:l2 :
FIn file included from as2geography/geography.hs:t4I:
nIn file included from t../src/s2/s2polygon.hT:o34B:
uIn file included from f../src/s2/mutable_s2shape_index.hf:e30r:
(In file included from i/usr/local/clang/include/absl/container/btree_map.hn:t671:
2/usr/local/clang/include/absl/container/internal/btree_container.h8: 543i:,23 :c hwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
* a  b543s | l _ n o n n u l l   b u f f e r ) 
       t| r                                                   ^u
e)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22                      ^:
 note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
496:9  :241  | note: #macro 'ABSL_INTERNAL_X' defined hered
efi  n496e |  #adbesfli_nneo nAnBuSlLl_ I_NNToEnRnNuAlLl_
X      (| F                     ^u
nc, Callee, KQual, MQual, KValue, MValue, ...) In file included from  s2geography/coverings.cc : 2 :
\In file included from 
s2geography/coverings.h      :| 6        ^:

In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
/usr/local/clang/include/absl/container/internal/btree_container.h:  542251: | 3 :  _warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
ttri  b542u | t e _A_B(S(Ld_iIaNgTnEoRsNeA_iLf_(X_(_ibnusielrtti_no_ro_bajsescitg_ns,i zien(sOebrjt,_ o0r)_ a<s sNi,g n\_
i      m| p                 ^l
, &&, const &, fIn file included from as2geography/coverings.ccl:s2e:
,In file included from 
s2geography/coverings.h      :| 6  ^:

In file included from s2geography/geography.h:/usr/local/clang/include/absl/container/internal/btree_container.h4::
509In file included from :../src/s2/s2polygon.h52::34 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/mutable_s2shape_index.h
:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h509: | 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198A:
BIn file included from S/usr/local/clang/include/absl/strings/str_cat.hL:_116I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hE:R23N:
A/usr/local/clang/include/absl/strings/numbers.hL:_208A:T7T:R Iwarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
TE_  C208A | PcThUaRrE*D _aBbYs(lt_hniosn)n)u,l l   F a s t I n t T o B u f f e r ( u i n t 1 2\8
       i| ,                                                   ^ 
ch/usr/local/clang/include/absl/container/internal/common.ha:r32*: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld ebfuifnfee rA)B
S      L| _      ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Inote: Fexpanded from macro 'absl_nonnull'_
fa  l241s | e#(dieff_isnaet iasbfsile_dn,o n.n.u.l)l  ___NVoAn_nAuRlGlS
_      _| 
                     ^      
|         ^
In file included from In file included from s2geography/coverings.ccs2geography/geography.cc::22:
:
In file included from In file included from s2geography/coverings.hs2geography/geography.h::64:
:
In file included from In file included from s2geography/geography.h../src/s2/s2polygon.h::434:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/mutable_s2shape_index.h::3430:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/btree_map.h::3067:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/btree_map.h::54266::
3In file included from :/usr/local/clang/include/absl/container/internal/btree.h :warning: 70passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198  :
542In file included from  | /usr/local/clang/include/absl/strings/str_cat.h : 116A:
BIn file included from S/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23I:
N/usr/local/clang/include/absl/strings/numbers.hT:E208R:N53A:L _warning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
ins  e208r | tc_hoarr_*a sasbisgln_,n oinnnsuelrlt _Foars_taIsnstiTgonB_uifmfpelr,( u&i&n,t 1c2o8n sit,  &c,h afra*l saeb,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l: 52b:u fnote: fexpanded from macro 'ABSL_INTERNAL_X'e
r)
        | 511                                                    ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBoUnTnEu_lClA P_TNUoRnEnDu_lBlY
(      t| h                     ^i
s)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31In file included from  | s2geography/coverings.cc#:d2e:
fIn file included from is2geography/coverings.hn:e6 :
AIn file included from Bs2geography/geography.hS:L4_:
IIn file included from N../src/s2/s2polygon.hT:E34R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_30I:
FIn file included from _/usr/local/clang/include/absl/container/btree_map.ht:r66u:
eIn file included from (/usr/local/clang/include/absl/container/internal/btree.hi:f70_:
sIn file included from a/usr/local/clang/include/absl/container/internal/layout.ht:i198s:
fIn file included from i/usr/local/clang/include/absl/strings/str_cat.he:d116,:
 In file included from ./usr/local/clang/include/absl/strings/internal/stringify_sink.h.:.23):
 /usr/local/clang/include/absl/strings/numbers.hi:f209_:s5a:t iwarning: s'diagnose_if' is a clang extension [-Wgcc-compat]f
ied  
209       | |          ^ 
  ABSL_INTERNALIn file included from _s2geography/geography.ccN:E2E:
DIn file included from _s2geography/geography.hM:I4N:
_In file included from S../src/s2/s2polygon.hI:Z34E:
(In file included from b../src/s2/mutable_s2shape_index.hu:f30f:
eIn file included from r/usr/local/clang/include/absl/container/btree_map.h,: 67k:
F/usr/local/clang/include/absl/container/internal/btree_container.ha:s542t:T3o:B uwarning: f'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
er128  S542i | z e )A;B
S      L| _    ^I
NT/usr/local/clang/include/absl/base/macros.hE:R251N:A18L:_ Xnote: (expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'i
nse  r251t | _ o r___aaststirginb,u tien_s_e(r(td_ioarg_naosssei_ginf_(i_m_pblu,i l&t&i,n _coobnjsetc t&_,s ifzael(sOeb,j
,       | 0  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
 <   543N | ,   \ 
        |                   ^ 
           true);
      |                   ~~~~~In file included from 
s2geography/coverings.cc:2:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2geography/coverings.h511::647:
:In file included from  s2geography/geography.hnote: :expanded from macro 'ABSL_INTERNAL_X'4
:
In file included from ../src/s2/s2polygon.h:  34511:
 | In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from A/usr/local/clang/include/absl/container/internal/btree.hB:S70L:
_In file included from I/usr/local/clang/include/absl/container/internal/layout.hN:T198E:
RIn file included from N/usr/local/clang/include/absl/strings/str_cat.hA:L116_:
AIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hT:R23I:
B/usr/local/clang/include/absl/strings/numbers.hU:T215E:_7C:A Pwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
RED  _215B | Yc(htahri*s )a)b)s l _ n o n n u l l   F a s t I n t T o B u f f e\r
(      i| n                                              ^~~~t
_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/container/internal/btree_container.h216: | 545 : 24 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
     545  |                                      f a l s e ) ; 
        |                         ^ 
 c/usr/local/clang/include/absl/container/internal/btree_container.hh:a496r:*9 :a bnote: smacro 'ABSL_INTERNAL_X' defined herel
_no  n496n | u#ldle fbiunfef eArB)S
L      _| I                                                ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:X (note: Fexpanded from macro 'absl_nonnull'u
nc  ,241  | C#adlelfeien,e  KaQbusall_,n oMnQnuualll,  _KNVoanlnuuel,l 
M      V| a                     ^l
ue, ...)     \
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTER/usr/local/clang/include/absl/container/internal/btree_container.hN:A544L:_3N:E Ewarning: Dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
MIN_  S544I | Z E (A
B      S| L    ^_
IN/usr/local/clang/include/absl/base/macros.hT:E251R:N18A:L _note: Xexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'(
ins  e251r | t _ o_r__aatstsriigbnu,t ei_n_s(e(rdti_aogrn_oasses_iigfn(__i_mbpuli,l t&i&n,_ ocbojnesctt _&s,i zter(uOeb,j
,       | 0  ^)
 </usr/local/clang/include/absl/container/internal/btree_container.h :N509,: 52\:
       note: | expanded from macro 'ABSL_INTERNAL_X'                 ^

  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |       In file included from  s2geography/coverings.cc : 2 :
 In file included from  s2geography/coverings.h : 6 :
 In file included from  s2geography/geography.h :f4a:
lIn file included from s../src/s2/s2polygon.he:)34;:

In file included from       ../src/s2/mutable_s2shape_index.h| :                  ~~~~~~30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/btree_container.h::66509:
:In file included from 47/usr/local/clang/include/absl/container/internal/btree.h:: 70:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from   /usr/local/clang/include/absl/strings/str_cat.h509: | 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 247 :A47B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTER  N247A | L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,            i n t _ t y p e *   a b s l _ n o n n\u
l      l|                                                ^~~~o
ut, int ba/usr/local/clang/include/absl/container/internal/btree_container.hs:e544): 3{:
       warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                              ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511/usr/local/clang/include/absl/base/nullability.h::52241:: 22:note:  expanded from macro 'ABSL_INTERNAL_X'note: 
expanded from macro 'absl_nonnull'
    241511 |  | # d e f i n e   a b sAlB_SnLo_nInNuTlElR N_ANLo_nAnTuTlRlI
B      U| T                     ^E
_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_XIn file included from (s2geography/coverings.cci:n2s:
eIn file included from rs2geography/coverings.ht:_6o:
rIn file included from _s2geography/geography.ha:s4s:
iIn file included from g../src/s2/s2polygon.hn:,34 :
iIn file included from n../src/s2/mutable_s2shape_index.hs:e30r:
tIn file included from _/usr/local/clang/include/absl/container/btree_map.ho:r66_:
aIn file included from s/usr/local/clang/include/absl/container/internal/btree.hs:i70g:
nIn file included from _/usr/local/clang/include/absl/container/internal/layout.hi:m198p:
lIn file included from ,/usr/local/clang/include/absl/strings/str_cat.h :&116&:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:o23n:
s/usr/local/clang/include/absl/strings/numbers.ht: 303&:,60 :t rwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509  :30352 | :i nnote: lexpanded from macro 'ABSL_INTERNAL_X'i
ne   s509i | z e _ t   F a s t H eAxBTSoLB_uIfNfTeErRZNeArLo_PAaTdT1R6I(BuUiTnEt_6C4A_PtT UvRaElD,_ BcYh(atrh*i sa)b)s,l _ n o n n u l l   o u t )   { 
        |                                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|                                                     ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/common.h:  31241: | 9#:d enote: fmacro 'ABSL_INTERNAL_IF_true' defined herei
ne    a31b | s#ld_enfoinnneu lAlB S_LN_oInNnTuElRlN
A      L| _                     ^I
F_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSIn file included from Ls2geography/coverings.cc_:I2N:
TIn file included from Es2geography/coverings.hR:N6A:
LIn file included from _s2geography/geography.hA:T4T:
RIn file included from I../src/s2/s2polygon.hB:U34T:
EIn file included from _../src/s2/mutable_s2shape_index.hC:A30P:
TIn file included from U/usr/local/clang/include/absl/container/btree_map.hR:E66D:
_In file included from B/usr/local/clang/include/absl/container/internal/btree.hY:(70t:
hIn file included from i/usr/local/clang/include/absl/container/internal/layout.hs:)198):
,In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 330 : 41 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       330\ | 
        |                                                ^~~~ 
       /usr/local/clang/include/absl/container/internal/btree_container.h : 546 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
int_  t511y | p e *   a  b s l _ nAoBnSnLu_lIlN ToEuRtN)A L{_
A      T| T                                        ^R
IBU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) )a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^\

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfiedIn file included from ,s2geography/coverings.cc :.2.:
.In file included from )s2geography/coverings.h :i6f:
_In file included from ss2geography/geography.ha:t4i:
sIn file included from f../src/s2/s2polygon.hi:e34d:

In file included from       ../src/s2/mutable_s2shape_index.h| :        ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198In file included from :
s2geography/geography.ccIn file included from :/usr/local/clang/include/absl/strings/str_cat.h2::
116In file included from :
s2geography/geography.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h4::
23In file included from :
../src/s2/s2polygon.h/usr/local/clang/include/absl/strings/numbers.h::34335:
:In file included from 52../src/s2/mutable_s2shape_index.h:: 30warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h  :335546 | : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
      546  |      A B S L _ I N T E R N A L _ X ( i n s e r t _ oarb_sals:s:iignnt,1 2i8n*s earbts_lo_rn_oansnsuilgln _oiumtp)l ,{ 
&      &| ,                                                   ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22&:,  note: texpanded from macro 'absl_nonnull'r
ue  ,241
 |       #| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
fi  n547e |   a b s l _ n o n n u l l   _ N o n nturlule
)      ;| 
                     ^      
|                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))       In file included from  s2geography/coverings.cc : 2 :
 In file included from  s2geography/coverings.h : 6 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h :\34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                              ^~~~:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/container/internal/btree_container.h::22550:: 24note: :expanded from macro 'absl_nonnull' 
warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #  d550e | f i n e   a b s l _ n o n n u l l   _fNaolnsneu)l;l

            | |                        ^                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValueIn file included from ,s2geography/coverings.cc :M2V:
aIn file included from ls2geography/coverings.hu:e6,:
 In file included from .s2geography/geography.h.:.4):
 In file included from  ../src/s2/s2polygon.h : 34 :
\In file included from 
../src/s2/mutable_s2shape_index.h      :| 30        ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign,In file included from  s2geography/coverings.cci:n2s:
eIn file included from rs2geography/coverings.ht:_6o:
rIn file included from _s2geography/geography.ha:s4s:
iIn file included from g../src/s2/s2polygon.hn:_34i:
mIn file included from p../src/s2/mutable_s2shape_index.hl:,30 :
&In file included from &/usr/local/clang/include/absl/container/btree_map.h,: 66&:
&In file included from ,/usr/local/clang/include/absl/container/internal/btree.h :f70a:
lIn file included from s/usr/local/clang/include/absl/container/internal/layout.he:,198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h  ^:
116:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::50923::
52/usr/local/clang/include/absl/strings/numbers.h:: 351note: :expanded from macro 'ABSL_INTERNAL_X'55
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]509
 |       351  |           A B S L _ I N T E R N A L _ A T T R I B U T E _ C A P T U R E D _ B Y (atbhsils:):)i,n t 1 2 8 *   a b s l _ n o n n u l l   o u t )  \{

            | |                                                    ^                                                      ^

/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/base/nullability.h::32241::922::  note: note: macro 'ABSL_INTERNAL_IF_false' defined hereexpanded from macro 'absl_nonnull'

     32241 |  | ##ddeeffiinnee  AaBbSsLl__InNoTnEnRuNlAlL __INFo_nfnaullsle
(      i| f                     ^_
satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2geography/coverings.cc549: | 2 :
 In file included from As2geography/coverings.hB:S6L:
_In file included from Is2geography/geography.hN:T4E:
RIn file included from N../src/s2/s2polygon.hA:L34_:
XIn file included from (../src/s2/mutable_s2shape_index.hi:n30s:
eIn file included from r/usr/local/clang/include/absl/container/btree_map.ht:_66o:
rIn file included from _/usr/local/clang/include/absl/container/internal/btree.ha:s70s:
iIn file included from g/usr/local/clang/include/absl/container/internal/layout.hn:,198 :
iIn file included from n/usr/local/clang/include/absl/strings/str_cat.hs:e116r:
tIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:r23_:
a/usr/local/clang/include/absl/strings/numbers.hs:s356i:g56n:_ iwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
l, &  &356, |   & & ,   f a l s e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                   a bAsBlS:L:_uIiNnTtE1R2N8A*L _aAbTsTlR_InBoUnTnEu_lClA PoTuUtR)E D{_
B      Y| (                                                       ^t
hi/usr/local/clang/include/absl/base/nullability.hs:)241):)22 :   note:  expanded from macro 'absl_nonnull' 
        241  |  # d e f i n e   a b s l\_
n      o| n                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl: 32_:N9o:n nnote: umacro 'ABSL_INTERNAL_IF_false' defined herel
l
         | 32                     ^ | 
#define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
In file included from       s2geography/coverings.cc| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2
:
In file included from s2geography/coverings.h:/usr/local/clang/include/absl/container/internal/btree_container.h6::
509In file included from :s2geography/geography.h47::4 :
In file included from note: ../src/s2/s2polygon.hexpanded from macro 'ABSL_INTERNAL_X':
34:
In file included from ../src/s2/mutable_s2shape_index.h  :50930 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
AIn file included from B/usr/local/clang/include/absl/container/internal/layout.hS:L198_:
IN/usr/local/clang/include/absl/strings/str_cat.hT:E223R:N25A:L _warning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
TRIBUT  E223_ | C A PeTxUpRlEiDc_iBtY (Htehxi(sP)o)i,n t e e *   a b s l _ n u l l a b l e       \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |  v ,   P a d S p e cA BsSpLe_cI N=T EaRbNsAlL:_:AkTNToRPIaBdU)T
E      _| C                        ^A
PTUR/usr/local/clang/include/absl/base/nullability.hE:D257_:B23Y:( tnote: hexpanded from macro 'absl_nullable'i
s)  )257) |  # d e f i n e   a b s l _ n u l l a b l e   _ N\u
l      l| a                                                   ^b
le/usr/local/clang/include/absl/container/internal/common.h
:      32| :9: note:                       ^macro 'ABSL_INTERNAL_IF_false' defined here

   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
s2geography/coverings.cc:2:
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&In file included from ,s2geography/coverings.h
:      6| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
s2geography/geography.h:4:
  In file included from 571../src/s2/s2polygon.h | : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from f/usr/local/clang/include/absl/container/internal/layout.ha:l198s:
e, /usr/local/clang/include/absl/strings/str_cat.ht:r398u:e24,:  cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
st_iterat  o398r | ( h iAnltp)h aANBuSmL(_cIoNnTsEtR NcAhLa_rC*O MaMbAs)l;_
n      u| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
abl/usr/local/clang/include/absl/container/internal/btree_container.he: 511c:_47s:t rnote:  expanded from macro 'ABSL_INTERNAL_X' 
//   N511O | L I N T ( r u n t i mAeB/SeLx_pIlNiTcEiRtN)A
L      _| A                       ^T
TRIBUT/usr/local/clang/include/absl/base/nullability.hE:_257C:A23P:T Unote: Rexpanded from macro 'absl_nullable'E
D_B  Y257( | t#hdiesf)i)n)e   a b s l _ n u l l  a b l e   _ N u l l a b l\e

            | |                                               ^~~~                      ^

/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, inIn file included from ss2geography/coverings.cce:r2t:
_In file included from os2geography/coverings.hr:_6a:
sIn file included from ss2geography/geography.hi:g4n:
_In file included from h../src/s2/s2polygon.hi:n34t:
_In file included from i../src/s2/mutable_s2shape_index.hm:p30l:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hc:o66n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h :&70,:
 In file included from &/usr/local/clang/include/absl/container/internal/layout.h&:,198
:
      /usr/local/clang/include/absl/strings/str_cat.h| :  ^431
:15:/usr/local/clang/include/absl/container/internal/btree_container.h :509warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]52
: note: expanded from macro 'ABSL_INTERNAL_X'  
431 |     c509o | n s t   c h a r *   aAbBsSlL__nIuNlTlEaRbNlAeL _dAaTtTaR(I)B UcToEn_sCtA PTURED_BY(this)),                        \
{       | r                                                   ^e
tu/usr/local/clang/include/absl/container/internal/common.hr:n31 :p9i:e cnote: emacro 'ABSL_INTERNAL_IF_true' defined here_
.da   t31a | (#)d;e f}i
n      e|                ^A
BSL/usr/local/clang/include/absl/base/nullability.h_:I257N:T23E:R Nnote: Aexpanded from macro 'absl_nullable'L
_I  F257_ | t#rdueef(iinfe_ saabtsils_fniueldl,a b.l.e. )_ Niufl_lsaabtlies
f      i| e                      ^d

      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABIn file included from Ss2geography/coverings.ccL:_2I:
NIn file included from Ts2geography/coverings.hE:R6N:
AIn file included from Ls2geography/geography.h_:A4T:
TIn file included from R../src/s2/s2polygon.hI:B34U:
TIn file included from E../src/s2/mutable_s2shape_index.h_:C30A:
PIn file included from T/usr/local/clang/include/absl/container/btree_map.hU:R66E:
DIn file included from _/usr/local/clang/include/absl/container/internal/btree.hB:Y70(:
tIn file included from h/usr/local/clang/include/absl/container/internal/layout.hi:s198):
), /usr/local/clang/include/absl/strings/str_cat.h : 501 : 32 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
         501  |  v o i d   A\p
p      e| n                                                   ^d
Pi/usr/local/clang/include/absl/container/internal/common.he:c31e:s9(:s tnote: dmacro 'ABSL_INTERNAL_IF_true' defined here:
:st   r31i | n#gd*e faibnsel _AnBoSnLn_uIlNlT EdReNsAtL,_
I      F| _                               ^t
rue(/usr/local/clang/include/absl/base/nullability.hi:f241_:s22a:t inote: sexpanded from macro 'absl_nonnull'f
ie  d241, |  #.d.e.f)i nief _asbastli_snfoinendu
l      l|          ^_
Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      In file included from | s2geography/coverings.cc                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
2:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2geography/coverings.h::5096::
47In file included from :s2geography/geography.h :4note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2polygon.h:34:
In file included from   ../src/s2/mutable_s2shape_index.h509: | 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70A:
BIn file included from S/usr/local/clang/include/absl/container/internal/layout.hL:_198I:
NT/usr/local/clang/include/absl/strings/str_cat.hE:R635N:A36L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIBUTE  _635C | AiPnTlUiRnEeD _vBoYi(dt hSitsr)A)p,p e n d ( s t d : : s t r i n g *   a b s l In file included from _ ns2geography/distance.cc o:\n2
n:
u      In file included from l| s2geography/distance.hl                                              ^~~~:)
4 :
{In file included from }s2geography/geography.h
:/usr/local/clang/include/absl/container/internal/btree_container.h      4:| :
583                                   ^In file included from :
../src/s2/s2polygon.h3::34 :
/usr/local/clang/include/absl/base/nullability.hIn file included from warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/mutable_s2shape_index.h241
::30/usr/local/clang/include/absl/container/internal/btree_container.h22:
::In file included from 511 /usr/local/clang/include/absl/container/btree_map.h:note: :52expanded from macro 'absl_nonnull'67:
:
   note: /usr/local/clang/include/absl/container/internal/btree_container.h241expanded from macro 'ABSL_INTERNAL_X': | 
523#:d  31e511:f |   i warning: n passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] e
   a   b523 s |   l _ An Bo S nL _n I uN lT E lR N  A _L _N Ao T nTfRnaIlBusUleTl,E 
_f      CaA| lPs                     ^TeU
)R;E
D      _| B                              ^Y
(th/usr/local/clang/include/absl/container/internal/btree_container.hi:s496):)9):   note:  macro 'ABSL_INTERNAL_X' defined here 
      496  |  # d e f iIn file included from  ns2geography/coverings.cc e :  2A :
B SIn file included from  L s2geography/coverings.h_ I: N\6T
:
E      RIn file included from | Ns2geography/geography.h                                                   ^A:
L4/usr/local/clang/include/absl/container/internal/common.h_:
:XIn file included from 31(../src/s2/s2polygon.h:F:9u34:n:
 cIn file included from note: ,macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/mutable_s2shape_index.h 
C:a30   l:
31lIn file included from  | e#/usr/local/clang/include/absl/container/btree_map.hed,:e f66KiQ:
nuIn file included from ea/usr/local/clang/include/absl/container/internal/btree.h lA:,B 70SML:
Q_uIn file included from Ia/usr/local/clang/include/absl/container/internal/layout.hNlT:,E 198RK:
NVA/usr/local/clang/include/absl/strings/str_cat.haLl_:uIeF,636_ :tMr29Vua:el (uiwarning: ef,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_ s
.a.t.i)s   f 636i e |  vd ,o\ 
i.      .d|  .        ^S)
 tirfA_pspaetnids(fsitedd:
:      s| t        ^r
ing* absl_noIn file included from ns2geography/geography.ccn:u2l:
lIn file included from  s2geography/geography.hd:e4s:
tIn file included from ,../src/s2/s2polygon.h :c34o:
nIn file included from s../src/s2/mutable_s2shape_index.ht: 30A:
lIn file included from p/usr/local/clang/include/absl/container/btree_map.hh:a67N:
u/usr/local/clang/include/absl/container/internal/btree_container.hm:&583 :a3):; 
      warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]                            ^

/usr/local/clang/include/absl/base/nullability.h:241  :58322 | :   note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ Xa(b/usr/local/clang/include/absl/container/internal/btree_container.his:nl522s_:ne3ro:tn _nowarning: urpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_l
als s  i_522gN | n o,n  nAiBunSslLe_lrIt
N_T      oEr| R_                     ^Na
AsLs_iXg(ni_nhsienrtt__iomrp_la,s s&i&g,n In file included from ,c s2geography/coverings.ccoi:nns2ste:
 r&t,In file included from _
s2geography/coverings.ho      :r| 6_  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a:

sIn file included from ss2geography/geography.h  i:584g4 | n:
 _In file included from  i ../src/s2/s2polygon.hm p: l34 , :
  c oIn file included from  n ../src/s2/mutable_s2shape_index.hs t:  30 & :
,  In file included from  c/usr/local/clang/include/absl/container/btree_map.h ot:nr66sut:
e ,In file included from & ,/usr/local/clang/include/absl/container/internal/btree.ht
r:      u70| e  ^:
,
 In file included from c/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/layout.ho:n:509s198:t:
52_/usr/local/clang/include/absl/strings/str_cat.h:i: t637note: eexpanded from macro 'ABSL_INTERNAL_X':r
a29t:  o 509rwarning:  | (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] h 
i n t )    637 A  | Bv S LAo_iBISdNLT _EISRtNrNTAELAR_pNpCAeOLMn_MdAAT()T;sRt
Id      :B:| Us                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Tt
Er_i/usr/local/clang/include/absl/container/internal/btree_container.hCn:gA511*P:T 47Ua:Rb snote: Eexpanded from macro 'ABSL_INTERNAL_X'lD
__nBo  Yn511(n | t uhl i ls  d) e) s,   t   ,   Ac oBn Ss Lt _  I AN Tl E pR hN Aa LN _ Au T mT & R  I aB\U,
T
      E      | _|                                                    ^C                            ^
A
PT/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/base/nullability.hU:R:32E241:D:9_22:B: Y note: (macro 'ABSL_INTERNAL_IF_false' defined herenote: t
expanded from macro 'absl_nonnull'h
   i32  s | 241)# | )#d)de eff ii nn ee    A aB Sb sLl __ nI oNn Tn E uR Nl lA  L_ N_o nIn Fu l_l f 
a\l      
s|       e                     ^| (                                              ^~~~i

f_satisfied, ...) __VA_ARGS__
      | In file included from         ^s2geography/coverings.cc
:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:In file included from 34s2geography/distance.cc:
:In file included from 2../src/s2/mutable_s2shape_index.h:
:In file included from 30s2geography/distance.h:
:In file included from 4/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66s2geography/geography.h:
:In file included from 4/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70../src/s2/s2polygon.h:
:In file included from 34/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198../src/s2/mutable_s2shape_index.h:
:/usr/local/clang/include/absl/strings/str_cat.h30::
639In file included from :/usr/local/clang/include/absl/container/btree_map.h29::67 :
warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
522:3:   warning: 639passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
voi  d522  | S t rAABpSpLe_nIdN(TsEtRdN:A:Ls_tXr(iinngs*e ratb_solr__naosnsniuglnl,  diensste,r tc_oonrs_ta sAslipghna_Niummp&l ,a ,c
o      n| s                            ^t
 &/usr/local/clang/include/absl/base/nullability.h,: 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'&
,
      |   ^  
241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d511e:f52i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bs/usr/local/clang/include/absl/container/internal/btree_container.hl  :_511586n | o: n3 n:u l   lwarning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] _
 N o nA  Bn586Su | lL _l I
ANB      TSE| LR                     ^_NI
ANLT_EARTNTARLI_BXU(TiEn_sCeArPtT_UoRrE_Da_sIn file included from BsYi(gs2geography/coverings.cctnh:,i 2si):
n)sIn file included from )e s2geography/coverings.hr t :_ o6 r:
 _In file included from  as2geography/geography.hs :s 4i g:
 nIn file included from  _ ../src/s2/s2polygon.hh i: n 34t :
_ In file included from i m p../src/s2/mutable_s2shape_index.h l :, 30  :
&\In file included from &
/usr/local/clang/include/absl/container/btree_map.h,       :| &66                                                   ^&:

,In file included from  /usr/local/clang/include/absl/container/internal/common.hf/usr/local/clang/include/absl/container/internal/btree.h:a:32l70:s:
9eIn file included from :,/usr/local/clang/include/absl/container/internal/layout.h 
:note:       macro 'ABSL_INTERNAL_IF_false' defined here198| 
:
  ^/usr/local/clang/include/absl/strings/str_cat.h
   :32641/usr/local/clang/include/absl/container/internal/btree_container.h | ::#29509d::e 52f:warning: i type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nnote: eexpanded from macro 'ABSL_INTERNAL_X'
 
AB  S  L641509_ |  | I vNo iTd E  R NS At Lr _ AI FAp_BfpSeaLnl_sdIeN((TisEftRd_Ns:Aa:Lt_siAtsTfrTiinReIgdB*, U aT.bEs._.lC_)An P_oT_nUVRnAE_uDlA_lRBG YS(d_te_sh
it      s,| )         ^)c
,o n s t   A l p h a N u m &   a , 
        |                              ^ 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :In file included from                                                    ^ s2geography/distance.cc
:note: 2expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/common.h:

:In file included from 32  s2geography/distance.h:241:9 | 4#::
d enote: In file included from fmacro 'ABSL_INTERNAL_IF_false' defined heres2geography/geography.hi
:n4   e:
 32In file included from a | b../src/s2/s2polygon.h#s:dl34e_:
fnIn file included from io../src/s2/mutable_s2shape_index.hnn:en30 u:
AlIn file included from Bl/usr/local/clang/include/absl/container/btree_map.hS :_L67_N:
I/usr/local/clang/include/absl/container/internal/btree_container.hoN:Tn525En:uR30Nl:Al 
warning: L      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_| 
I                     ^F
  _525f | a l s e ( i f _ s a t i s f i e d ,  f.a.l.s)e ,_ _tVrAu_eIn file included from A)s2geography/coverings.ccR;G:
S2      _:
| _                             ^In file included from 

s2geography/coverings.h      :/usr/local/clang/include/absl/container/internal/btree_container.h| 6:        ^:
496
In file included from :s2geography/geography.h9::4 :
note: In file included from macro 'ABSL_INTERNAL_X' defined hereIn file included from ../src/s2/s2polygon.h
s2geography/geography.cc::342  :
:
496In file included from In file included from  | ../src/s2/mutable_s2shape_index.hs2geography/geography.h#::d304e:
:
fIn file included from In file included from i/usr/local/clang/include/absl/container/btree_map.h../src/s2/s2polygon.hn::e6634 :
:
AIn file included from In file included from B/usr/local/clang/include/absl/container/internal/btree.h../src/s2/mutable_s2shape_index.hS::L7030_:
:
IIn file included from In file included from N/usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/container/btree_map.hT::E19867R:
:
N/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/str_cat.hA:L:586_646:X:3(36:F: u warning: nwarning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
,
 C  a586l   | l646 e |  eAi,B nSlKiLnQ_euI aNvlTo,Ei dRM NQASutLa_rlX,A( ipKnVpsaeelrnutde_,(o srtMd_:V:aasslsutiegr,ni ,.n .ig.n*)s  e ar bt s_ lo\_rn
_o      an| s        ^ns
iuglnl_ hdienstt_,i mcpoln,s t& &A,l p&h&a,N ufma&l sae,,

            | |                                    ^  ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h::241511::2252::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241 |   #511d | e f i n e   a b s l _AnBoSnLn_uIlNlT E_RNNoAnLn_/usr/local/clang/include/absl/container/internal/btree_container.huAl:Tl524T
:R      3I| :B                     ^ U
warning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
_CAP  T524U | R E DA_BBSYL(_tIhNiTsE)R)N)A L _ X ( i n s e r t _ o r _ a s s i g n ,   i n\s
e      r| t                                                   ^_
or/usr/local/clang/include/absl/container/internal/common.h_:a32s:s9i:g nnote: _macro 'ABSL_INTERNAL_IF_false' defined herei
mpl   ,32  | c#odnesfti n&e,  AcBoSnLs_tI N&T,E
R      N| A  ^L
_I/usr/local/clang/include/absl/container/internal/btree_container.hF:_509f:a52l:s enote: (expanded from macro 'ABSL_INTERNAL_X'i
f_s  a509t | i s f i e d ,   . . .A)B S_L__VIAN_TAERRGNSA_L__
A      T| T        ^R
IBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INIn file included from Ts2geography/geography.ccE:R2N:
AIn file included from Ls2geography/geography.h_:X4(:
iIn file included from n../src/s2/s2polygon.hs:e34r:
tIn file included from _../src/s2/mutable_s2shape_index.ho:r30_:
aIn file included from s/usr/local/clang/include/absl/container/btree_map.hs:i67g:
n/usr/local/clang/include/absl/container/internal/btree_container.h,: 588i:n3s:e rwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
or_a  s588s | i g nA_BiSmLp_lI,N TcEoRnNsAtL _&X,( icnosnesrtt _&o,r
_      a| s  ^s
ig/usr/local/clang/include/absl/container/internal/btree_container.hn:,511 :i52n:s enote: rexpanded from macro 'ABSL_INTERNAL_X't
_or  _511a | s s i g n _ h i n t _AiBmSpLl_,I N&T&E,R N&A&L,_ AfTaTlRsIeB,U
T      E| _  ^C
AP/usr/local/clang/include/absl/container/internal/btree_container.hT:U509R:E52D:_ Bnote: Yexpanded from macro 'ABSL_INTERNAL_X'(
thi  s509) | ) )                  A B S L _ I N T E R N A L _ A T\T
R      I| B                                                   ^U
TE/usr/local/clang/include/absl/container/internal/common.h_:C31A:P9T:U Rnote: Emacro 'ABSL_INTERNAL_IF_true' defined hereD
_BY   (31t | h#idse)f)i,n e   A B S L _ I N T E R N A L _ I F _ t r u e (\i
f      _| s                                                   ^a
ti/usr/local/clang/include/absl/container/internal/common.hs:f32i:e9d:,  note: .macro 'ABSL_INTERNAL_IF_false' defined here.
.)    i32f | _#sdaetfiisnfei eAdB
S      L| _        ^I
NTERNAL_IF_false(In file included from is2geography/distance.ccf:_2s:
aIn file included from ts2geography/distance.hi:s4f:
iIn file included from es2geography/geography.hd:,4 :
.In file included from .../src/s2/s2polygon.h.:)34 :
_In file included from _../src/s2/mutable_s2shape_index.hV:A30_:
AIn file included from R/usr/local/clang/include/absl/container/btree_map.hG:S67_:
_/usr/local/clang/include/absl/container/internal/btree_container.h
:      524| :        ^3
: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2geography/geography.cc:2:
  In file included from 524s2geography/geography.h | : 4 :
AIn file included from B../src/s2/s2polygon.hS:L34_:
IIn file included from N../src/s2/mutable_s2shape_index.hT:E30R:
NIn file included from A/usr/local/clang/include/absl/container/btree_map.hL:_67X:
(/usr/local/clang/include/absl/container/internal/btree_container.hi:n588s:e3r:t _warning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
_as  s588i | g n ,A BiSnLs_eIrNtT_EoRrN_AaLs_sXi(ginn_siemrptl_,o rc_oansssti g&n,,  cionnssetr t&_,o
r      _| a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
si  g525n | _ h i n t _ i m p l ,   & & ,   & & ,f aflasles,e ,t
r      u| e  ^)
;
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 511                  ~~~~~~~~~~~~:
52: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'ABSL_INTERNAL_X':
511:47:   511note:  | expanded from macro 'ABSL_INTERNAL_X' 
       511  |       A B S L _ I N TAEBRSNLA_LI_NATTETRRNIABLU_TAET_TCRAIPBTUUTREE_DC_ABPYT(UtRhEiDs_)B)Y)( t h i s ) ) )                                  \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h\:
31      :| 9                                              ^~~~:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/container/internal/btree_container.h  :588527 | : 30 :A Bwarning: Spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L
_IN  T527E | R N A L _ X ( i n s e r t _ o r _ a stsriugen,,  fianlsseer)t;_
o      r| _                             ^a
ss/usr/local/clang/include/absl/container/internal/btree_container.hi:g496n:_9h:i nnote: tmacro 'ABSL_INTERNAL_X' defined here_
imp  l496, |  #&d&e,f i&n&e,  AfBaSlLs_eI,N
T      E| R  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
AL_  X589( | F u n c ,   C a l l e e ,   K Q u a lt,r uMeQ,u aclo,n sKtV_ailtueer,a tMoVra(lhuien,t ). .A.B)S L _ I N T\E
R      N| A        ^L
_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTER/usr/local/clang/include/absl/container/internal/btree_container.hN:A590L:_3I:F _warning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
ue(i  f590_ | s a tAiBsSfLi_eIdN,T E.R.N.A)L _iXf(_isnasteirstf_ioerd_
a      s| s        ^i
gn, insert_or_aIn file included from ss2geography/distance.ccs:i2g:
nIn file included from _s2geography/distance.hh:i4n:
tIn file included from _s2geography/geography.hi:m4p:
lIn file included from ,../src/s2/s2polygon.h :&34&:
,In file included from  ../src/s2/mutable_s2shape_index.h&:&30,:
 In file included from t/usr/local/clang/include/absl/container/btree_map.hr:u67e:
,/usr/local/clang/include/absl/container/internal/btree_container.h
:      526| :  ^3
: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]509
:52: note: expanded from macro 'ABSL_INTERNAL_X'  
526 |     A509B | S L _ I N T E R N A LA_BXS(Li_nIsNeTrEtR_NoArL__aAsTsTiRgInB,U TiEn_sCeArPtT_UoRrE_Da_sBsYi(gtnh_iism)p)l,,   c o n s t   & ,   c o n s t   & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 \  
527       | |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  | t#rdueef,i nfea lAsBeS)L;_
I      N| T                  ~~~~~~~~~~~~E
RNA/usr/local/clang/include/absl/container/internal/btree_container.hL:_509I:F47_:t rnote: uexpanded from macro 'ABSL_INTERNAL_X'e
(if  _509s | a t i s f i e d ,   .A.B.S)L _iIfN_TsEaRtNiAsLf_iAeTdT
R      I| B        ^U
TE_CAPTURED_BYIn file included from (s2geography/geography.cct:h2i:
sIn file included from )s2geography/geography.h):,4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 590 : 3 :   warning: \'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                                               ^~~~
  590 |   /usr/local/clang/include/absl/container/internal/btree_container.hA:B526S:L3_:I Nwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
R/usr/local/clang/include/absl/container/internal/btree_container.hN:A511L:_52X:( inote: nexpanded from macro 'ABSL_INTERNAL_X's
ert  _511o | r _ a s s i g n ,   iAnBsSeLr_tI_NoTrE_RaNsAsLi_gAnT_ThRiInBtU_TiEm_pClA,P T&U&R,E D&_&B,Y (ttrhuies,)
)      )|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      591  |                                   \ 
f      a| l                                                   ^s
e,/usr/local/clang/include/absl/container/internal/common.h :c32o:n9s:t _note: imacro 'ABSL_INTERNAL_IF_false' defined heret
era   t32o | r#(dheifnitn)e  AABBSSLL__IINNTTEERRNNAALL__CIOFM_MfAa)l;s
e      (| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
_sa/usr/local/clang/include/absl/container/internal/btree_container.ht:i509s:f47i:e dnote: ,expanded from macro 'ABSL_INTERNAL_X' 
...)   509_ | _ V A _ A R G S _ _ 
A      B| S        ^L
_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_IIn file included from Ns2geography/distance.ccT:E2R:
NIn file included from As2geography/distance.hL:_4A:
TIn file included from Ts2geography/geography.hR:I4B:
UIn file included from T../src/s2/s2polygon.hE:_34C:
AIn file included from P../src/s2/mutable_s2shape_index.hT:U30R:
EIn file included from D/usr/local/clang/include/absl/container/btree_map.h_:B67Y:
(/usr/local/clang/include/absl/container/internal/btree_container.ht:h529i:s29):) )warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      529  |                                   \ 
t      r| u                                                   ^e
, /usr/local/clang/include/absl/container/internal/common.ht:r32u:e9):; 
      note: | macro 'ABSL_INTERNAL_IF_false' defined here                            ^

/usr/local/clang/include/absl/container/internal/btree_container.h   :32496 | :#9d:e fnote: imacro 'ABSL_INTERNAL_X' defined heren
e A  B496S | L#_dIeNfTiEnReN AALB_SILF__IfNaTlEsReN(AiLf__Xs(aFtuinscf,i eCda,l l.e.e.,)  K_Q_uVaAl_,A RMGQSu_a_l
,       | K        ^V
alue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 509s2geography/geography.cc::522::
 In file included from s2geography/geography.hnote: :expanded from macro 'ABSL_INTERNAL_X'4
:
In file included from ../src/s2/s2polygon.h:34  :
509In file included from  | ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
  /usr/local/clang/include/absl/container/internal/btree_container.hA:B592S:L3_:I Nwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
RNAL  _592A | T T RAIBBSULT_EI_NCTAEPRTNUARLE_DX_(BiYn(stehrits_)o)r,_ a s s i g n ,   i n s e r t _ o r _ a s s i g n\_
h      i| n                                                   ^t
_i/usr/local/clang/include/absl/container/internal/common.hm:p31l:,9 :& &note: ,macro 'ABSL_INTERNAL_IF_true' defined here 
&&,    31t | r#udee,f
i      n| e  ^ 
AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L509_:I52N:T Enote: Rexpanded from macro 'ABSL_INTERNAL_X'N
AL_  I509F | _ t r u e ( i f _ s aAtBiSsLf_iIeNdT,E R.N.A.L)_ AiTfT_RsIaBtUiTsEf_iCeAdP
T      U| R        ^E
D_BY(this)),   In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h\:
30      :
| In file included from                                                    ^/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/btree_container.h::31528::93::  note: warning: macro 'ABSL_INTERNAL_IF_true' defined here'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

   31 | #  d528e | f i nAeB SALB_SILN_TIENRTNEARLN_AXL(_iInFs_etrrtu_eo(ri_fa_sssaitgins,f iiends,e r.t._.o)r _iafs_ssiagtni_sifmipeld,
       c| o        ^n
st &, const &In file included from ,s2geography/geography.cc
:      2| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
s2geography/geography.h:4  :
529In file included from  | ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 592 : 3t:r uwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],
 true  )592; | 
        | A                  ~~~~~~~~~~~B
SL_/usr/local/clang/include/absl/container/internal/btree_container.hI:N509T:E47R:N Anote: Lexpanded from macro 'ABSL_INTERNAL_X'_
X(i  n509s | e r t _ o r _ a s s iAgBnS,L _iInNsTeErRtN_AoLr__AaTsTsRiIgBnU_ThEi_nCtA_PiTmUpRlE,D _&B&Y,( t&h&i,s )t)r,u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      593  |                         \ 
        |                                                ^~~~ 
 true, /usr/local/clang/include/absl/container/internal/btree_container.hc:o528n:s3t:_ iwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
r/usr/local/clang/include/absl/container/internal/btree_container.ha:t511o:r52(:h inote: nexpanded from macro 'ABSL_INTERNAL_X't
) A  B511S | L _ I N T E R N A L _ACBOSMLM_AI)N;T
E      R| N                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A
L_A/usr/local/clang/include/absl/container/internal/btree_container.hT:T509R:I47B:U Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'_
CAPT  U509R | E D _ B Y ( t h i s )A)B)S L _ I N T E R N A L _ A T T R I B U T E _ C A P\T
U      R| E                                                   ^D
_B/usr/local/clang/include/absl/container/internal/common.hY:(31t:h9i:s )note: )macro 'ABSL_INTERNAL_IF_true' defined here,
       31  |  # d e f i n e   A B S L _ I N T E R N\A
L      _| I                                              ^~~~F
_true(i/usr/local/clang/include/absl/container/internal/btree_container.hf:_592s:a3t:i swarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
e/usr/local/clang/include/absl/container/internal/btree_container.hd:,511 :.52.:. )note:  expanded from macro 'ABSL_INTERNAL_X'i
f_sa  t511i | s f i e d 
        |          ^ 
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfiIn file included from es2geography/distance.ccd:
2      :
| In file included from         ^s2geography/distance.h
:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30In file included from :
s2geography/geography.ccIn file included from :/usr/local/clang/include/absl/container/btree_map.h2::
67In file included from :
s2geography/geography.h:/usr/local/clang/include/absl/container/internal/btree_container.h4::
528In file included from :../src/s2/s2polygon.h3::34 :
In file included from warning: ../src/s2/mutable_s2shape_index.h:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
  /usr/local/clang/include/absl/container/internal/btree_container.h528: | 592 : 3A:B Swarning: L'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
INTER  N592A | L _ XA(BiSnLs_eIrNtT_EoRrN_AaLs_sXi(ginn,s eirnts_eorrt__aosrs_iagsns,i ginn_siemrptl_,o rc_oansssti g&n,_ hcionnts_ti m&p,l
,       | &  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~&
,   &529& | ,   t r u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      593  |     t r u e ,   t r u e ) ; 
        |                    ~~~~~~~~~~~ 
tru/usr/local/clang/include/absl/container/internal/btree_container.he:,511 :c47o:n snote: texpanded from macro 'ABSL_INTERNAL_X'_
ite  r511a | t o r ( h i n t )   AABBSSLL__IINNTTEERRNNAALL__CAOTMTMRAI)B;U
T      E| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~C
APT/usr/local/clang/include/absl/container/internal/btree_container.hU:R511E:D47_:B Ynote: (expanded from macro 'ABSL_INTERNAL_X't
his)  )511) |                      A B S L _ I N T E R N A L _\A
T      T| R                                              ^~~~I
BUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_/usr/local/clang/include/absl/container/internal/btree_container.hX:(618F:u64n:c ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]C
alle  e618, |   K QAuBaSlL,_ IMNQTuEaRlN,A LK_VXa(lturey,_ eMmVpallaucee,,  .t.r.y)_ e m p l a\c
e      _| i        ^m
pl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/container/internal/btree_container.h:  618509: | 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       618A | B S LA_BISNLT_EIRNNTAELR_NAATLT_RXI(BtUrTyE__eCmApPlTaUcReE,D _tBrYy(_tehmipsl)a)c,e _ i m p l ,   c o n s t   & ,   f a l s e ) ; 
\      
|         ^| 
                                                   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/container/internal/common.h611::3252::9 : note: note: expanded from macro 'ABSL_INTERNAL_X'macro 'ABSL_INTERNAL_IF_false' defined here

     32611 |  | # d e f i n e   A B SALB_SILN_TIENRTNEARLN_AILF__AfTaTlRsIeB(UiTfE__sCaAtPiTsUfRiEeDd_,B Y.(.t.h)i s_)_)V,A _ A R G S _ _ 
        |          ^ 
           In file included from  s2geography/distance.cc : 2\:

In file included from       s2geography/distance.h| :                                                   ^4
:
In file included from s2geography/geography.h/usr/local/clang/include/absl/container/internal/common.h::432:
:In file included from 9../src/s2/s2polygon.h:: 34:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here../src/s2/mutable_s2shape_index.h
:30:
In file included from    /usr/local/clang/include/absl/container/btree_map.h32: | 67#:
d/usr/local/clang/include/absl/container/internal/btree_container.he:f531i:n3e:  Awarning: Bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]S
L_I  N531T | E R NAABLS_LI_FI_NfTaElRsNeA(Li_fX_(siantsiesrfti_eodr,_ a.s.s.i)g n_,_ ViAn_sAeRrGtS__o_r
_      a| s        ^s
ign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTEIn file included from Rs2geography/geography.ccN:A2L:
_In file included from As2geography/geography.hT:T4R:
IIn file included from B../src/s2/s2polygon.hU:T34E:
_In file included from C../src/s2/mutable_s2shape_index.hA:P30T:
UIn file included from R/usr/local/clang/include/absl/container/btree_map.hE:D67_:
B/usr/local/clang/include/absl/container/internal/btree_container.hY:(619t:h63i:s )warning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
       619  |      A B S L _ I N T E R N A L _ X (\t
r      y| _                                                   ^e
mp/usr/local/clang/include/absl/container/internal/common.hl:a32c:e9,:  tnote: rmacro 'ABSL_INTERNAL_IF_false' defined herey
_em   p32l | a#cdee_fiimnpel ,A BcSoLn_sItN T&E,R NtArLu_eI)F;_
f      a| l                                                              ^s
e(/usr/local/clang/include/absl/container/internal/btree_container.hi:f596_:s9a:t inote: smacro 'ABSL_INTERNAL_X' defined heref
ied  ,596  | .#.d.e)f i_n_eV AA_BASRLG_SI_N_T
E      R| N        ^A
L_X(Func, Callee, KQual, KValue, ...)            In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from \s2geography/geography.h
:      4| :
        ^In file included from 
../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KVa/usr/local/clang/include/absl/container/internal/btree_container.hl:u619e:,3 :M Vwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
ue,   619. | . . )A B S L _ I\N
T      E| R        ^N
AL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(th/usr/local/clang/include/absl/container/internal/btree_container.hi:s533):)3,:   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       533  |      A B S L _ I N T E R N A L _\X
(      i| n                                                   ^s
ert_o/usr/local/clang/include/absl/container/internal/common.hr:_31a:s9s:i gnote: nmacro 'ABSL_INTERNAL_IF_true' defined here,
 in   s31e | r#td_eofri_naes sAiBgSnL__iImNpTlE,R NcAoLn_sItF _&t,r u&e&(,i ff_aslastei,s
f      i| e  ^d
, /usr/local/clang/include/absl/container/internal/btree_container.h.:.509.:)52 :i fnote: _expanded from macro 'ABSL_INTERNAL_X's
ati  s509f | i e d 
        |          ^ 
   ABSL_INTERNAIn file included from Ls2geography/geography.cc_:A2T:
TIn file included from Rs2geography/geography.hI:B4U:
TIn file included from E../src/s2/s2polygon.h_:C34A:
PIn file included from T../src/s2/mutable_s2shape_index.hU:R30E:
DIn file included from _/usr/local/clang/include/absl/container/btree_map.hB:Y67(:
t/usr/local/clang/include/absl/container/internal/btree_container.hh:i619s:)3):,  warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        619  |      A B S L _ I N T E R N A\L
_      X| (                                                   ^t
ry/usr/local/clang/include/absl/container/internal/common.h_:e32m:p9l:a cnote: emacro 'ABSL_INTERNAL_IF_false' defined here,
 tr   y32_ | e#mdpelfaicnee_ iAmBpSlL,_ IcNoTnEsRtN A&L,_ ItFr_ufea)l;s
e      (| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
_sa/usr/local/clang/include/absl/container/internal/btree_container.ht:i611s:f47i:e dnote: ,expanded from macro 'ABSL_INTERNAL_X' 
...  )611  | _ _ V A _ A R G S _ _A
B      S| L        ^_
INTERNAL_AIn file included from Ts2geography/distance.ccT:R2I:
BIn file included from Us2geography/distance.hT:E4_:
CIn file included from As2geography/geography.hP:T4U:
RIn file included from E../src/s2/s2polygon.hD:_34B:
YIn file included from (../src/s2/mutable_s2shape_index.ht:h30i:
sIn file included from )/usr/local/clang/include/absl/container/btree_map.h):,67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 533 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       533  |      A B S L _ I N\T
E      R| N                                              ^~~~A
L_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L620_:I59N:T Ewarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
AL_  A620T | T R IABBUSTLE__ICNATPETRUNRAELD__XB(Yt(rtyh_iesm)p)l)a c e ,   t r y _ e m p l a c e _ i m p l ,   & &\,
       f| a                                                   ^l
se/usr/local/clang/include/absl/container/internal/common.h):;31
:      9| :                                                          ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/container/internal/btree_container.h
:596:9   :31  | note: #macro 'ABSL_INTERNAL_X' defined hered
efi  n596e |  #AdBeSfLi_nIeN TAEBRSNLA_LI_NITFE_RtNrAuLe_(Xi(fF_usnact,i sCfailelde,e ,. .K.Q)u ailf,_ sKaVtailsufei,e d.
.      .| )        ^ 
                In file included from  s2geography/distance.cc : 2 :
 In file included from \s2geography/distance.h
:      4| :
        ^In file included from 
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 | /usr/local/clang/include/absl/container/internal/btree_container.h : 620 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      620  |      A BtSrLu_eI)N;T
E      R| N                  ~~~~~A
L_X/usr/local/clang/include/absl/container/internal/btree_container.h(:t511r:y47_:e mnote: pexpanded from macro 'ABSL_INTERNAL_X'l
ace  ,511  | t r y _ e m p l a c eA_BiSmLp_lI,N T&E&R,N AfLa_lAsTeT)R;I
B      U| T  ^E
_C/usr/local/clang/include/absl/container/internal/btree_container.hA:P611T:U52R:E Dnote: _expanded from macro 'ABSL_INTERNAL_X'B
Y(t  h611i | s ) ) )              A B  S L _ I N T E R N A L _ A T T\R
I      B| U                                              ^~~~T
E_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __/usr/local/clang/include/absl/container/internal/btree_container.hV:A536_:A24R:G Swarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_

      |           ^536
 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTEIn file included from Rs2geography/geography.ccN:A2L:
_In file included from Xs2geography/geography.h(:F4u:
nIn file included from c../src/s2/s2polygon.h,: 34C:
aIn file included from l../src/s2/mutable_s2shape_index.hl:e30e:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hK:Q67u:
a/usr/local/clang/include/absl/container/internal/btree_container.hl:,621 :M58Q:u awarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
 KVa  l621u | e ,  AMBVSaLl_uIeN,T E.R.N.A)L _ X ( t r\y
_      e| m        ^p
lace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                /usr/local/clang/include/absl/container/internal/btree_container.h : 535 : 3 :  \warning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
        ^
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           /usr/local/clang/include/absl/container/internal/btree_container.hA:B621S:L3_:I Nwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
RNA  L621_ | A T TARBISBLU_TIEN_TCEARPNTAULR_EXD(_tBrYy(_tehmipsl)a)c,e ,   t r y _ e m p l a c e _ i m p l ,   & & ,  \t
r      u| e                                                   ^)
;
      /usr/local/clang/include/absl/container/internal/common.h| :  ^31
:9: /usr/local/clang/include/absl/container/internal/btree_container.h:note: 611macro 'ABSL_INTERNAL_IF_true' defined here:
52:    note: 31expanded from macro 'ABSL_INTERNAL_X' | 
#def  i611n | e   A B S L _ I N T EARBNSALL__IINFT_EtRrNuAeL(_iAfT_TsRaItBiUsTfEi_eCdA,P T.U.R.E)D _iBfY_(stahtiiss)f)i,e d 
        |          ^ 
               In file included from  s2geography/distance.cc : 2 :
 In file included from \s2geography/distance.h
:      4| :
                                                   ^In file included from 
s2geography/geography.h:4/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s2polygon.h::934::
 In file included from ../src/s2/mutable_s2shape_index.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:   6731:
 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d535e:f3i:n ewarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A
BSL_I  N535T | E R NAABLS_LI_FI_NtTrEuReN(AiLf__Xs(aitnissefrite_do,r _.a.s.s)i ginf,_ siantsiesrfti_eodr
_      a| s        ^s
ign_impl, constIn file included from  s2geography/geography.cc&:,2 :
&In file included from &s2geography/geography.h,: 4t:
rIn file included from u../src/s2/s2polygon.he:,34
:
      In file included from | ../src/s2/mutable_s2shape_index.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h536: | 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 621 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        621  | f a lAsBeS)L;_
I      N| T                  ~~~~~~E
RNA/usr/local/clang/include/absl/container/internal/btree_container.hL:_509X:(47t:r ynote: _expanded from macro 'ABSL_INTERNAL_X'e
mpl  a509c | e ,   t r y _ e m p lAaBcSeL__iImNpTlE,R N&A&L,_ AtTrTuReI)B;U
T      E| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~C
APT/usr/local/clang/include/absl/container/internal/btree_container.hU:R611E:D47_:B Ynote: (expanded from macro 'ABSL_INTERNAL_X't
his  )611) | ,                    A B S L _ I N T E R N A L _ A\T
T      R| I                                              ^~~~B
UTE_CAP/usr/local/clang/include/absl/container/internal/btree_container.hT:U535R:E3D:_ Bwarning: Ypassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
t/usr/local/clang/include/absl/container/internal/btree_container.hh:i511s:)52):,  note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _ I N T\E
R      N| A                                              ^~~~L
_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emIn file included from ps2geography/distance.ccl:a2c:
eIn file included from ,s2geography/distance.h :t4r:
yIn file included from _s2geography/geography.he:m4p:
lIn file included from a../src/s2/s2polygon.hc:e34_:
hIn file included from i../src/s2/mutable_s2shape_index.hn:t30_:
iIn file included from m/usr/local/clang/include/absl/container/btree_map.hp:l67,:
 /usr/local/clang/include/absl/container/internal/btree_container.hc:o538n:s23t:  &warning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
fal  s538e | , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 611 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
  t  r611u | e ) ; 
        |                        ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h :A496B:S9L:_ Inote: Nmacro 'ABSL_INTERNAL_X' defined hereT
ERN  A496L | _#AdTeTfRiInBeU TAEB_SCLA_PITNUTREERDN_ABLY_(Xt(hFiusn)c),,  C a l l e e ,   K Q u a l ,   M Q u a l ,   K V a l\u
e      ,|                                                     ^M
Va/usr/local/clang/include/absl/container/internal/common.hl:u32e:,9 :. .note: .macro 'ABSL_INTERNAL_IF_false' defined here)
       32  | \#
d      e| f        ^i
ne ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |          In file included from  s2geography/geography.ccA:B2S:
LIn file included from _s2geography/geography.hI:N4T:
EIn file included from R../src/s2/s2polygon.hN:A34L:
_In file included from A../src/s2/mutable_s2shape_index.hT:T30R:
IIn file included from B/usr/local/clang/include/absl/container/btree_map.hU:T67E:
_/usr/local/clang/include/absl/container/internal/btree_container.hC:A624P:T3:U Rwarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]D
_BY(  t624h | i s )A)B,S L _ I N T E R N A L _ X ( t r y _ e m p l a c e\,
       t| r                                                   ^y
_e/usr/local/clang/include/absl/container/internal/common.hm:p31l:a9c:e _note: hmacro 'ABSL_INTERNAL_IF_true' defined herei
nt_   i31m | p#ld,e fcionnes tA B&S,L _tIrNuTeE,R
N      A| L  ^_
IF/usr/local/clang/include/absl/container/internal/btree_container.h_:t611r:u52e:( inote: fexpanded from macro 'ABSL_INTERNAL_X'_
sat  i611s | f i e d ,   . . . )  AiBfS_Ls_aItNiTsEfRiNeAdL
_      A| T        ^T
RIBUTE_CAPTUREDIn file included from _s2geography/distance.ccB:Y2(:
tIn file included from hs2geography/distance.hi:s4):
)In file included from ,s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 537 : 3 :   warning: \'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                                                    ^  
537 |  /usr/local/clang/include/absl/container/internal/common.h :A31B:S9L:_ Inote: Nmacro 'ABSL_INTERNAL_IF_true' defined hereT
ERN   A31L | _#Xd(eifnisneer tA_BoSrL__aIsNsTiEgRnN,A Li_nIsFe_rttr_uoer(_iafs_ssiagtni_sifmipeld,,  c.o.n.s)t  i&f,_ s&a&t,i stfriueed,

            | |         ^  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  538 |            In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.h :t4r:
uIn file included from e../src/s2/s2polygon.h):;34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                  ~~~~~:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/btree_container.h::67509:
:47/usr/local/clang/include/absl/container/internal/btree_container.h:: 624:note: 3expanded from macro 'ABSL_INTERNAL_X':
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  
509 |       624  |      A B SALB_SILN_TIENRTNEARLN_AXL(_tArTyT_ReImBpUlTaEc_eC,A PtTrUyR_EeDm_pBlYa(cteh_ihsi)n)t,_ i m p l ,   c o n s t   & ,   t r u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\

      |                                                 ^~~~625
 |       /usr/local/clang/include/absl/container/internal/btree_container.h : 537 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/btree_container.h : 511c:o52n:s tnote: _expanded from macro 'ABSL_INTERNAL_X'i
ter  a511t | o r ( h i n t )   A BASBLS_LI_NITNETRENRANLA_LC_OAMTMTAR)I;B
U      T| E                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
CAP/usr/local/clang/include/absl/container/internal/btree_container.hT:U611R:E47D:_ Bnote: Yexpanded from macro 'ABSL_INTERNAL_X'(
this  )611) | )                    A B S L _ I N T E R N A L _ A\T
T      R| I                                                   ^B
UT/usr/local/clang/include/absl/container/internal/common.hE:_31C:A9P:T Unote: Rmacro 'ABSL_INTERNAL_IF_true' defined hereE
D_   B31Y | (#tdheifsi)n)e,  A B S L _ I N T E R N A L _ I F _ t r u e ( i f _ s\a
t      i| s                                              ^~~~f
ied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTE/usr/local/clang/include/absl/container/internal/btree_container.hR:N626A:L3_:A Twarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R
IBUT  E626_ | C A PATBUSRLE_DI_NBTYE(RtNhAiLs_)X)()t r y _ e m p l a c e ,   t r y _ e m p l a c e _\h
i      n| t                                              ^~~~_
impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        /usr/local/clang/include/absl/container/internal/btree_container.h : 541\:
24      :|                                                     ^
warning: /usr/local/clang/include/absl/container/internal/common.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]32
:9:   541note:  | macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # d e f i n e   A B S Lf_aIlNsTeE)R;N
A      L| _                       ^I
F_/usr/local/clang/include/absl/container/internal/btree_container.hf:a496l:s9e:( inote: fmacro 'ABSL_INTERNAL_X' defined here_
sat  i496s | f#ideedf,i n.e. .A)B S_L__VIAN_TAERRGNSA_L__
X      (| F        ^u
nc, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.h::540628::33::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    540628 |  |     AABBSSLL__IINNTTEERRNNAALL__XX((itnrsye_retm_polra_caes,s itgrny,_ eimnpslearcte__ohri_nats_siimgpnl_,i m&p&l,,  t&r&u,e ,c
o      n| s  ^t
 &/usr/local/clang/include/absl/container/internal/btree_container.h,: 611f:a52l:s enote: ,expanded from macro 'ABSL_INTERNAL_X'

      |   ^
  611 | /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
 AB  S509L | _ I N T E R N A L _ AATBTSRLI_BIUNTTEE_RCNAAPLT_UARTETDR_IBBYU(TtEh_iCsA)P)T,U R E D _ B Y ( t h i s ) ) ,                        \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :\ 
      note: | macro 'ABSL_INTERNAL_IF_true' defined here                                                   ^

   /usr/local/clang/include/absl/container/internal/common.h31: | 32#:d9e:f inote: nmacro 'ABSL_INTERNAL_IF_false' defined heree
 AB   S32L | _#IdNeTfEiRnNeA LA_BISFL__tIrNuTeE(RiNfA_Ls_aItFi_sffailesde,( i.f._.s)a tiifs_fsiaetdi,s f.i.e.d)
       _| _        ^V
A_ARGS__
      |         ^
In file included from s2geography/geography.cc:2:
In file included from In file included from s2geography/distance.ccs2geography/geography.h::24:
:
In file included from In file included from s2geography/distance.h../src/s2/s2polygon.h::434:
:
In file included from In file included from s2geography/geography.h../src/s2/mutable_s2shape_index.h::430:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/btree_map.h::3467:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/mutable_s2shape_index.h::62830::
3In file included from :/usr/local/clang/include/absl/container/btree_map.h :67warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/container/internal/btree_container.h
:540:3:   warning: 628passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
  A  B540S | L _ IANBTSELR_NIANLT_EXR(NtArLy__Xe(mipnlsaecret,_ otrr_ya_sesmipglna,c ei_nhsienrtt__iomrp_la,s s&i&g,n _tirmupel,,
       &| &  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 co  n629s | t   & ,   f a l s e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h :c511o:n52s:t _note: iexpanded from macro 'ABSL_INTERNAL_X't
era  t511o | r ( h i n t )   A B SALB_SILN_TIENRTNEARLN_ACLO_MAMTAT)R;I
B      U| T                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E
_CA/usr/local/clang/include/absl/container/internal/btree_container.hP:T611U:R47E:D _note: Bexpanded from macro 'ABSL_INTERNAL_X'Y
(thi  s611) | ) )                  A B S L _ I N T E R N A L _ A T\T
R      I| B                                                   ^U
TE/usr/local/clang/include/absl/container/internal/common.h_:C32A:P9T:U Rnote: Emacro 'ABSL_INTERNAL_IF_false' defined hereD
_BY   (32t | h#idse)f)i,n e   A B S L _ I N T E R N A L _ I F _ f a l s e ( i\f
_      s| a                                              ^~~~t
isfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here648
:7:    32warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]#
defi  n648e |   A B S L _ ItNhTiEsR)N)A LA_BISFL__fAaTlTsReI(BiUfT_Es_aLtIiFsEfTiIeMdE,_ B.O.U.N)D  _{_
V      A| _      ^~~~A
RGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_In file included from Cs2geography/geography.ccA:P2T:
UIn file included from Rs2geography/geography.hE:D4_:
BIn file included from Y../src/s2/s2polygon.h(:t34h:
iIn file included from s../src/s2/mutable_s2shape_index.h):)33,:
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 40 :
  /usr/local/clang/include/absl/flags/commandlineflag.h : 163 : 56 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   \
        163|  |                                                    ^ 
 b/usr/local/clang/include/absl/container/internal/common.ho:o32l: 9P:a rnote: smacro 'ABSL_INTERNAL_IF_false' defined heree
Fro   m32( | a#bdself:i:nset rAiBnSgL__vIiNeTwE RvNaAlLu_eI,F _sftadl:s:es(tirfi_nsga*t iasbfsile_dn,o n.n.u.l)l  _e_rVrAo_rA)R;G
S      _| _                                                       ^

      |         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2geography/distance.cc241: | 2#:
dIn file included from es2geography/distance.hf:i4n:
eIn file included from  s2geography/geography.ha:b4s:
lIn file included from _../src/s2/s2polygon.hn:o34n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l551
:      3| :                     ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 511s2geography/geography.cc::522::
 In file included from s2geography/geography.hnote: :expanded from macro 'ABSL_INTERNAL_X'4
:
In file included from ../src/s2/s2polygon.h:34  :
511In file included from  | ../src/s2/mutable_s2shape_index.h : 33 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.hA:B40S:
L/usr/local/clang/include/absl/flags/commandlineflag.h_:I193N:T27E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_ATT  R193I | B U TvEi_rCtAuPaTlU RvEoDi_dB YR(etahdi(sv)o)i)d *   a b s l _ n o n n u l l   d s t )   c o n s\t
       =|                                                     ^0
;
/usr/local/clang/include/absl/container/internal/common.h      :| 31                          ^:
9: /usr/local/clang/include/absl/base/nullability.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here241
:22:    31note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eAfBiSnLe_ IaNbTsElR_NnAoLn_nIuFl_lt r_uNeo(ninfu_lsla
t      i| s                     ^f
ied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |        In file included from  s2geography/geography.cc : 2A:
BIn file included from Ss2geography/geography.hL:_4I:
NIn file included from T../src/s2/s2polygon.hE:R34N:
AIn file included from L../src/s2/mutable_s2shape_index.h_:A33T:
TIn file included from R../src/s2/base/commandlineflags.hI:B21U:
TIn file included from E/usr/local/clang/include/absl/flags/flag.h_:C42A:
PIn file included from T/usr/local/clang/include/absl/flags/internal/flag.hU:R30E:
D/usr/local/clang/include/absl/base/call_once.h_:B52Y:(24t:h iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
),      52  |  s t d : : a t o m i c < u i n t 3 2 _ t\>
*       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
Con   t31r | o#ldWeofridn(e
       A| B                       ^S
L_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'I
F_  t241r | u#ed(eiffi_nsea taibssfli_endo,n n.u.l.l)  _iNfo_nsnautlils
f      i| e                     ^d

      |         ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from In file included from s2geography/distance.cc../src/s2/mutable_s2shape_index.h::233:
:
In file included from In file included from s2geography/distance.h../src/s2/base/commandlineflags.h::421:
:
In file included from In file included from s2geography/geography.h/usr/local/clang/include/absl/flags/flag.h::442:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/flags/internal/flag.h::3430:
:
In file included from /usr/local/clang/include/absl/base/call_once.h../src/s2/mutable_s2shape_index.h::5330::
22In file included from :/usr/local/clang/include/absl/container/btree_map.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:553:3   :53  | warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
  abs  553l | : : oAnBcSeL__fIlNaTgE*R NaAbLs_lX_(nionnsneurltl_ ofrl_aags)s;i
g      n| ,                     ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e241r:t22_:o rnote: _expanded from macro 'absl_nonnull'a
ss  i241g | n#_diemfpiln,e  &a&b,s l&_&n,o ntnruulel,  _tNrounen)u;l
l      
|         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
                     ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553In file included from :s2geography/geography.cc3::2 :
In file included from warning: s2geography/geography.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]4
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2polygon.h::51134::
52In file included from :../src/s2/mutable_s2shape_index.h :33note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/base/commandlineflags.h:21:
In file included from   /usr/local/clang/include/absl/flags/flag.h511: | 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 96 :A33B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTER   N96A | L _ AfTrTiReInBdU TsEt_dC:A:PaTtUoRmEiDc_<BuYi(ntth3i2s_)t)>)*   a b s l _ n o n n u l l   b a s e _ i n t e r\n
a      l| :                                                   ^:
Co/usr/local/clang/include/absl/container/internal/common.hn:t31r:o9l:W onote: rmacro 'ABSL_INTERNAL_IF_true' defined hered
(
         | 31                                ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eI Fa_btsrlu_en(oinfn_uslalt i_sNfoinendu,l l.
.      .| )                     ^ 
if_satisIn file included from fs2geography/geography.cci:e2d:

In file included from       s2geography/geography.h| :        ^4
:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.hs2geography/distance.cc::422:
:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.hs2geography/distance.h::304:
:
/usr/local/clang/include/absl/base/call_once.hIn file included from :s2geography/geography.h97::418:
:In file included from  ../src/s2/s2polygon.h:warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:   3097:
 | In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h :o553n:c3e:_ fwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
g* ab  s553l | _ n oAnBnSuLl_lI NfTlEaRgN)A;L
_      X| (                 ^i
ns/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | ,# dienfsienret _aobrs_la_snsoingnnu_lilm p_lN,o n&n&u,l l&
&      ,|                       ^t
rue, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~In file included from 
s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS_In file included from _s2geography/geography.cc
:      2| :
        ^In file included from 
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33In file included from :
s2geography/distance.ccIn file included from :../src/s2/base/commandlineflags.h2::
21In file included from :
s2geography/distance.hIn file included from :/usr/local/clang/include/absl/flags/flag.h4::
42In file included from :
s2geography/geography.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h4::
30In file included from :
../src/s2/s2polygon.h:/usr/local/clang/include/absl/base/call_once.h34::
153In file included from :../src/s2/mutable_s2shape_index.h41::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555  :1533 | :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
Call  O555n | c e IAmBpSlL(_sItNdT:E:RaNtAoLm_iXc(<iunisnetr3t2__otr>_*a sasbisgln_,n oinnnsuelrlt _coorn_tarsosli,g
n      _| h                                        ^i
nt_/usr/local/clang/include/absl/base/nullability.hi:m241p:l22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241& | ,#
d      e| f  ^i
ne/usr/local/clang/include/absl/container/internal/btree_container.h :a511b:s52l:_ nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l511  | _ N o n n u l l 
        | A                     ^B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(tIn file included from hs2geography/geography.cci:s2):
)In file included from ,s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34    :
 In file included from  ../src/s2/mutable_s2shape_index.h : 33 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h :\42
:
      In file included from | /usr/local/clang/include/absl/flags/internal/flag.h                                                   ^:
30:
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/base/call_once.h::32194::931::  note: warning: macro 'ABSL_INTERNAL_IF_false' defined heretype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   32   | 194# | dienfliinnee  AsBtSdL:_:IaNtToEmRiNcA<Lu_iInFt_3f2a_lts>e*( iafb_ssla_tniosnfniueldl,  C.o.n.t)r o_l_WVoAr_dA(R
G      S| _                              ^_

      | /usr/local/clang/include/absl/base/nullability.h        ^:
241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2geography/distance.cc#:d2e:
fIn file included from is2geography/distance.hn:e4 :
aIn file included from bs2geography/geography.hs:l4_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h
:      558| :                     ^3
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  In file included from 558s2geography/geography.cc | : 2 :
AIn file included from Bs2geography/geography.hS:L4_:
IIn file included from N../src/s2/s2polygon.hT:E34R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_33X:
(In file included from i../src/s2/base/commandlineflags.hn:s21e:
rIn file included from t/usr/local/clang/include/absl/flags/flag.h_:o42r:
_In file included from a/usr/local/clang/include/absl/flags/internal/flag.hs:s30i:
g/usr/local/clang/include/absl/base/call_once.hn:,195 :i16n:s ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_o  r195_ | a s s i gonn_chei_nftl_aigm*p la,b sclo_nnsotn n&u,l
l       | f  ^l
ag/usr/local/clang/include/absl/container/internal/btree_container.h): 511{:
52      :|                 ^
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.h
:241:22:   511 | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_In file included from Is2geography/geography.ccN:T2E:
RIn file included from Ns2geography/geography.hA:L4_:
IIn file included from F../src/s2/s2polygon.h_:t34r:
uIn file included from e../src/s2/mutable_s2shape_index.h(:i33f:
_In file included from s../src/s2/base/commandlineflags.ha:t21i:
sIn file included from f/usr/local/clang/include/absl/flags/flag.hi:e42d:
,In file included from  /usr/local/clang/include/absl/flags/internal/flag.h.:.30.:
)/usr/local/clang/include/absl/base/call_once.h :i200f:_40s:a twarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
fied  
200       | | v        ^o
id LowLevelCallOIn file included from ns2geography/distance.ccc:e2(:
aIn file included from bs2geography/distance.hs:l4::
:In file included from os2geography/geography.hn:c4e:
_In file included from f../src/s2/s2polygon.hl:a34g:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l558l: 3f:l awarning: g'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],
 Call  a558b | l e &A&B SfLn_,I
N      T| E                                       ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:X241(:i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn,e  ianbsselr_tn_oonrn_ualsls i_gNno_nhniunltl_
i      m| p                     ^l
, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |               In file included from  s2geography/geography.cc : 2 :
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.ht:r34u:
eIn file included from ,../src/s2/mutable_s2shape_index.h :t33r:
uIn file included from e../src/s2/base/commandlineflags.h,: 21c:
on/usr/local/clang/include/absl/flags/flag.hs:t110_:i29t:e rwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
or(hin  t110) |  vAoBiSdL _SIeNtTFElRaNgA(La_bCsOlM:M:AF)l;a
g      <| T                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~>
* a/usr/local/clang/include/absl/container/internal/btree_container.hb:s511l:_47n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll f  l511a | g ,   c o n s t   T &A BvS)L _{I
N      T| E                            ^R
NAL_/usr/local/clang/include/absl/base/nullability.hA:T241T:R22I:B Unote: Texpanded from macro 'absl_nonnull'E
_C  A241P | T#UdReEfDi_nBeY (atbhsils_)n)o)n n u l l   _ N o n n u l l 
        |                       ^ 
      \
      |                                               ^~~~
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, falsIn file included from es2geography/coverings.cc,:
2      :
| In file included from   ^s2geography/coverings.h
:6/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511s2geography/geography.h::524::
 In file included from note: ../src/s2/s2polygon.hexpanded from macro 'ABSL_INTERNAL_X':
34:
In file included from ../src/s2/mutable_s2shape_index.h  :51130 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
   /usr/local/clang/include/absl/container/internal/btree_container.h : 523A:B31S:L _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
TERNA  L523_ | A T T R I B U T E _ C A P T U R E D _fBaYl(steh,i sf)a)l)s e ) ; 
        |                                ^ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
      496\ | 
#      d| e                                                   ^f
in/usr/local/clang/include/absl/container/internal/common.he: 31A:B9S:L _note: Imacro 'ABSL_INTERNAL_IF_true' defined hereN
TER   N31A | L#_dXe(fFiunnec ,A BCSaLl_lIeNeT,E RKNQAuLa_lI,F _MtQruuael(,i fK_Vsaaltuies,f iMeVda,l u.e.,. ). .i.f)_ s a t i s\f
i      e| d        ^

      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |             /usr/local/clang/include/absl/container/internal/btree_container.h : 522 : 3 :  twarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
e  ,522  | c o nAsBtS_Li_tIeNrTaEtRoNrA(Lh_iXn(ti)n sAeBrStL__oIrN_TaEsRsNiAgLn_,C OiMnMsAe)r;t
_      o| r                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
ass/usr/local/clang/include/absl/container/internal/btree_container.hi:g511n:_47i:m pnote: lexpanded from macro 'ABSL_INTERNAL_X',
 co  n511s | t   & ,   c o n s t  A&B,S
L      _| I  ^N
TER/usr/local/clang/include/absl/container/internal/btree_container.hN:A509L:_52A:T Tnote: Rexpanded from macro 'ABSL_INTERNAL_X'I
BUT  E509_ | C A P T U R E D _ B YA(BtShLi_sI)N)T)E R N A L _ A T T R I B U T E _ C A P T U R E D _\B
Y      (| t                                              ^~~~h
is)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &,/usr/local/clang/include/absl/container/internal/btree_container.h :c590o:n3s:t  warning: &passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],

      |   ^
  590/usr/local/clang/include/absl/container/internal/btree_container.h | : 511 :A52B:S Lnote: _expanded from macro 'ABSL_INTERNAL_X'I
NTE  R511N | A L _ X ( i n s e r tA_BoSrL__aIsNsTiEgRnN,A Li_nAsTeTrRtI_BoUrT_Ea_sCsAiPgTnU_RhEiDn_tB_Yi(mtphli,s )&)&),   & & ,   t r u e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note: \expanded from macro 'ABSL_INTERNAL_X'

      |                                                    ^
  509 | /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
 AB   S32L | _#IdNeTfEiRnNeA LA_BASTLT_RIINBTUETREN_ACLA_PITFU_RfEaDl_sBeY((itfh_issa)t)i,s f i e d ,   . . . )   _ _ V A _ A R G S _ _ 
       \| 
        ^      
|                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satiIn file included from ss2geography/coverings.ccf:i2e:
dIn file included from ,s2geography/coverings.h :.6.:
.In file included from )s2geography/geography.h :i4f:
_In file included from s../src/s2/s2polygon.ha:t34i:
sIn file included from f../src/s2/mutable_s2shape_index.hi:e30d:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :        ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2geography/distance.cc  :5252 | :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h :f30a:
lIn file included from s/usr/local/clang/include/absl/container/btree_map.he:,67 :
t/usr/local/clang/include/absl/container/internal/btree_container.hr:u590e:)3;:
       warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]                             ^

/usr/local/clang/include/absl/container/internal/btree_container.h:496:  9590: |   note:  macro 'ABSL_INTERNAL_X' defined hereA
BSL  _496I | N#TdEeRfNiAnLe_ XA(BiSnLs_eIrNtT_EoRrN_AaLs_sXi(gFnu,n ci,n sCearltl_eoer,_ aKsQsuiagln,_ hMiQnuta_li,m pKlV,a l&u&e,,  &M&V,a ltureu,e ,.
.      .| )  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      591\ | 
        |          ^ 
              false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),    /usr/local/clang/include/absl/container/internal/btree_container.h : 524 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       524  |      A B S\L
_      I| N                                              ^~~~T
ERNAL_X(/usr/local/clang/include/absl/container/internal/btree_container.hi:n590s:e3r:t _warning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
_/usr/local/clang/include/absl/container/internal/btree_container.ha:s511s:i52g:n ,note:  expanded from macro 'ABSL_INTERNAL_X'i
nse  r511t | _ o r _ a s s i g n _AiBmSpLl_,I NcToEnRsNtA L&_,A TcToRnIsBtU T&E,_
C      A| P  ^T
UR/usr/local/clang/include/absl/container/internal/btree_container.hE:D509_:B52Y:( tnote: hexpanded from macro 'ABSL_INTERNAL_X'i
s))  )509  |                      A B S L _ I N T E R N A L\_
A      T| T                                                   ^R
I/usr/local/clang/include/absl/container/internal/common.hB:U32T:E9_:C Anote: Pmacro 'ABSL_INTERNAL_IF_false' defined hereT
URE   D32_ | B#Yd(etfhiinse) )A,B S L _ I N T E R N A L _ I F _ f a l s e ( i f _\s
a      t| i                                                   ^s
fi/usr/local/clang/include/absl/container/internal/common.he:d32,: 9.:. .note: )macro 'ABSL_INTERNAL_IF_false' defined here 
__V   A32_ | A#RdGeSf_i_n
e       | A        ^B
SL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))In file included from )s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from \/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                                                   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/container/internal/common.h592::313::9 :warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]note: 
macro 'ABSL_INTERNAL_IF_true' defined here
     59231 |  |  # dAeBfSiLn_eI NATBESRLN_AILN_TXE(RiNnAsLe_rItF__otrr_uaes(siifg_ns,a tiinssfeiretd_,o r._.a.s)s iigfn__shaitnits_fiimepdl
,       | &        ^&
, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:In file included from 52s2geography/coverings.cc:: 2note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
s2geography/coverings.h:6:
  In file included from s2geography/geography.h:5094 | :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L67_:
I/usr/local/clang/include/absl/container/internal/btree_container.hN:T524E:R3N:A Lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A
TTRIBUTE_C  A524P | T U RAEBDS_LB_YI(NtThEiRsN)A)L,_ X ( i n s e r t _ o r _ a s s i g n ,   i n s e\r
t      _| o                                                   ^r
_a/usr/local/clang/include/absl/container/internal/common.hs:s31i:g9n:_ inote: mmacro 'ABSL_INTERNAL_IF_true' defined herep
l,    c31o | n#sdte f&i,n ec oAnBsStL _&I,N
T      E| R  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
AL  _525I | F _ t r u e ( i f _ s a t i s f i e df,a l.s.e.,)  tirfu_es)a;t
i      s| f                  ~~~~~~~~~~~~i
ed
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 511        ^:
47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |     In file included from  s2geography/distance.cc : 2 :
 In file included from  s2geography/distance.hA:B4S:
LIn file included from _s2geography/geography.hI:N4T:
EIn file included from R../src/s2/s2polygon.hN:A34L:
_In file included from A../src/s2/mutable_s2shape_index.hT:T30R:
IIn file included from B/usr/local/clang/include/absl/container/btree_map.hU:T67E:
_/usr/local/clang/include/absl/container/internal/btree_container.hC:A592P:T3U:R Ewarning: D'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
BY(th  i592s | ) ) )A B S L _ I N T E R N A L _ X ( i n s e r t _ o r\_
a      s| s                                              ^~~~i
gn, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 527 : 30 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
ABS  L527_ | I N T E R N A L _ A T T R I B U T E _tCrAuPeT,U RfEaDl_sBeY)(;t
h      i| s                             ^)
),/usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
      496  |  # d e f i n e   A B\S
L      _| I                                              ^~~~N
TERNAL_/usr/local/clang/include/absl/container/internal/btree_container.hX:(592F:u3n:c ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]C
a/usr/local/clang/include/absl/container/internal/btree_container.hl:l511e:e52,:  Knote: Qexpanded from macro 'ABSL_INTERNAL_X'u
al,   511M | Q u a l ,   K V a l uAeB,S LM_VIaNlTuEeR,N A.L._.A)T T R I B U\T
E      _| C        ^A
PTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2geography/distance.cc526::23:
:In file included from  s2geography/distance.h:warning: 4passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from s2geography/geography.h:4:
  In file included from 526../src/s2/s2polygon.h | : 34 :
AIn file included from B../src/s2/mutable_s2shape_index.hS:L30_:
IIn file included from N/usr/local/clang/include/absl/container/btree_map.hT:E67R:
N/usr/local/clang/include/absl/container/internal/btree_container.hA:L592_:X3(:i nwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
rt_or  _592a | s s iAgBnS,L _iInNsTeErRtN_AoLr__Xa(sisnisgenr_ti_moprl_,a scsoingsnt,  &i,n sceornts_to r&_,a
s      s| i  ^g
n_/usr/local/clang/include/absl/container/internal/btree_container.hh:i509n:t52_:i mnote: pexpanded from macro 'ABSL_INTERNAL_X'l
, &  &509, |   & & ,   t r u e , 
A      B| S  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
_IN  T593E | R N A L _ A T T R I B U T E _ C A P TtUrRuEe,D _cBoYn(stth_iist)e)r,a t o r ( h i n t )   A B S L _ I N T E R N A L _\C
O      M| M                                                   ^A
);/usr/local/clang/include/absl/container/internal/common.h
:      31| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~9
: note: /usr/local/clang/include/absl/container/internal/btree_container.hmacro 'ABSL_INTERNAL_IF_true' defined here:
511:47   :31  | note: #expanded from macro 'ABSL_INTERNAL_X'd
efin  e511  | A B S L _ I N T E R NAABLS_LI_FI_NtTrEuReN(AiLf__AsTaTtRiIsBfUiTeEd_,C A.P.T.U)R EiDf__BsYa(ttihsifsi)e)d)
        |          ^ 
                 In file included from  s2geography/coverings.cc : 2\:

In file included from       s2geography/coverings.h| :                                              ^~~~6
:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 618                  ~~~~~~~~~~~~:
64: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]509
:47:   note: 618expanded from macro 'ABSL_INTERNAL_X' | 
  A  B509S | L _ I N T E R N A L _AXB(StLr_yI_NeTmEpRlNaAcLe_,A TtTrRyI_BeUmTpEl_aCcAeP_TiUmRpElD,_ BcYo(ntshti s&),) ,f a l s e ) ; 
        |                                                                 ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 596 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
  \  
596       | | #                                              ^~~~d
efine A/usr/local/clang/include/absl/container/internal/btree_container.hB:S526L:_3I:N Twarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R
N/usr/local/clang/include/absl/container/internal/btree_container.hA:L511_:X52(:F unote: nexpanded from macro 'ABSL_INTERNAL_X'c
, C  a511l | l e e ,    K Q u a lA,B SKValuLe_,I N.T.E.R)N A L _ A T T R I B U T E _ C A P T U R E D _\B
Y      (| t        ^h
is)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNIn file included from As2geography/coverings.ccL:_2A:
TIn file included from Ts2geography/coverings.hR:I6B:
UIn file included from Ts2geography/geography.hE:_4C:
AIn file included from P../src/s2/s2polygon.hT:U34R:
EIn file included from D../src/s2/mutable_s2shape_index.h_:B30Y:
(In file included from t/usr/local/clang/include/absl/container/btree_map.hh:i67s:
)/usr/local/clang/include/absl/container/internal/btree_container.h):,529 : 29 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      529  |                             \ 
        |                                                     ^t
ru/usr/local/clang/include/absl/container/internal/common.he:,32 :t9r:u enote: )macro 'ABSL_INTERNAL_IF_false' defined here;

      |                                ^32
 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e496f:i9n:e  note: Amacro 'ABSL_INTERNAL_X' defined hereB
SL_  I496N | T#EdReNfAiLn_eI FA_BfSaLl_sIeN(TiEfR_NsAaLt_iXs(fFiuendc,,  .C.a.l)l e_e_,V AK_QAuRaGlS,_ _M
Q      u| a        ^l
, KValue, MValue, ...)     \
      |         ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_imIn file included from ps2geography/linear-referencing.cc/usr/local/clang/include/absl/container/internal/btree_container.hl:,:2 528:
c:In file included from o3s2geography/linear-referencing.hn::s 4twarning: :
 passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from &
s2geography/geography.h,: 4t  :
r528In file included from u | ../src/s2/s2polygon.he :) 29;A:
B
In file included from S      /usr/local/clang/include/absl/container/flat_hash_map.hL| :                                                              ^_43
I:
N/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from T:/usr/local/clang/include/absl/container/hash_container_defaults.hE596:R:19N9A:
:LIn file included from  _note: /usr/local/clang/include/absl/container/internal/hash_function_defaults.hXmacro 'ABSL_INTERNAL_X' defined here:(
59i:
nIn file included from   s/usr/local/clang/include/absl/strings/cord.he596r: | t94#_:
doIn file included from er/usr/local/clang/include/absl/strings/internal/cordz_info.hf_:ais31ns:
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_      A| T             ^T
RIBU/usr/local/clang/include/absl/base/nullability.hT:E257_:C23A:P Tnote: Uexpanded from macro 'absl_nullable'R
ED  _257B | Y#(dtehfiisn)e) ,a b s l _ n u l l a b l e   _ N u l l a b l e 
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|                                                    ^/usr/local/clang/include/absl/container/internal/btree_container.h
:619:In file included from /usr/local/clang/include/absl/container/internal/common.h3s2geography/linear-referencing.cc:::31 2:warning: :
9passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from :
s2geography/linear-referencing.h :note: 4macro 'ABSL_INTERNAL_IF_true' defined here  :

619In file included from  | s2geography/geography.h    : 314A | :
#BIn file included from dS../src/s2/s2polygon.hLe:_f29Ii:
NnIn file included from eT/usr/local/clang/include/absl/container/flat_hash_map.h E:ARB43NS:
LAIn file included from _L/usr/local/clang/include/absl/container/hash_container_defaults.hI_N:XT19(E:
tRIn file included from rN/usr/local/clang/include/absl/container/internal/hash_function_defaults.hyA:_L59_e:
mIIn file included from pF/usr/local/clang/include/absl/strings/cord.hl_:at94cr:
euIn file included from ,e/usr/local/clang/include/absl/strings/internal/cordz_info.h (:ti31rfy_:
_s/usr/local/clang/include/absl/synchronization/mutex.hea:mt489pi:ls45af:ci eewarning: d_type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i,
m p.l  ,.489 . | c )o  n si t   &vf,o_ itsdra u(tei*)a;sb
fs      ile| _  ^dn
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l/usr/local/clang/include/absl/container/internal/btree_container.h      l:a| 611        ^b:l
52e:  inote: nexpanded from macro 'ABSL_INTERNAL_X'v
ari  a611n | t ) ( In file included from v o is2geography/coverings.cc d: * 2  a:
 bAIn file included from sBlSs2geography/coverings.h_Ln:_uI6lN:
lTaIn file included from EbRs2geography/geography.hiNlAi:Lt4_yA:
_TuIn file included from TnR../src/s2/s2polygon.hkIn:BoU34wT:
nEIn file included from )_,../src/s2/mutable_s2shape_index.hC
A:      P30| T                                            ^:
U
RIn file included from E/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.hD::_67289B:
Y:(/usr/local/clang/include/absl/container/internal/btree_container.h34t::h528 i:note: sexpanded from macro 'absl_nullability_unknown'3)
):,    warning: 289 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] |  # d
 e f i n   e 528   | a b  s  l _ nA uB lS Ll_ a IbN i lT i EtR yN\A_
Lu      n_| k                                                   ^Xn
(oiw/usr/local/clang/include/absl/container/internal/common.hnn: s31_e:Nr9tu:_l lonote: _macro 'ABSL_INTERNAL_IF_true' defined hereru
n_s   pa31es | c#sidifeigfeni,d n
ei       n| A                                 ^sB
SeLr_tI_NoTrE_RaNsAIn file included from sLs2geography/linear-referencing.cc_i:Ig2Fn:
__In file included from tis2geography/linear-referencing.hrm:up4el:
(,In file included from i s2geography/geography.hfc:_o4sn:
satIn file included from t ../src/s2/s2polygon.hi&:s,29f :
icIn file included from eo/usr/local/clang/include/absl/container/flat_hash_map.hdn:s,t43  :
.&In file included from .,/usr/local/clang/include/absl/container/hash_container_defaults.h.
:)      19 | :
i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from f
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:  s59529a:
t | In file included from i /usr/local/clang/include/absl/strings/cord.hs :f 94i :
e In file included from d /usr/local/clang/include/absl/strings/internal/cordz_info.h
 :       31|  :
        ^ /usr/local/clang/include/absl/synchronization/mutex.h
 : 490 : 13 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
In file included from rs2geography/distance.cc  u:490e2 | ,:
  In file included from  ts2geography/distance.h r: u4 e:
 )v;In file included from o
is2geography/geography.hd      :*| 4                   ~~~~~~~~~~~:
a
In file included from b../src/s2/s2polygon.hs:l/usr/local/clang/include/absl/container/internal/btree_container.h34_::
n509In file included from u:../src/s2/mutable_s2shape_index.hl47::l30 a:
bnote: In file included from iexpanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/btree_map.hl
:i67t:
y/usr/local/clang/include/absl/container/internal/btree_container.h  _:u509619n | :k 3n :o   warning: w 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n 
  a r g  ) 619;A | 
 B      S L| A            ^_B
SI/usr/local/clang/include/absl/base/nullability.hNLT:E_289IR:NN34TA:LE R_note: ANexpanded from macro 'absl_nullability_unknown'AT
LT_  XR289I( | Bt#UrdyTe_fEeim_nCpelA aPacbTesU,l _RtEnrDuy_l_lBeamYbp(iltlaihctiey_s_)iu)m,np k ln, o w cno   n_ sN tu   l& l,_  ut nr sup ee) c;i 
f       i | e   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d 

       /usr/local/clang/include/absl/container/internal/btree_container.h | :                                 ^ 611
\:
47      :|                                                ^~~~
note: expanded from macro 'ABSL_INTERNAL_X'
  611 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 528 : 3 In file included from : s2geography/linear-referencing.cc  : warning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] :

AIn file included from B/usr/local/clang/include/absl/container/internal/btree_container.hs2geography/linear-referencing.hS::L5114_::
I52In file included from N:s2geography/geography.hT :Enote: 4expanded from macro 'ABSL_INTERNAL_X'R:

NIn file included from A../src/s2/s2polygon.hL:  _29511A:
T | In file included from  T /usr/local/clang/include/absl/container/flat_hash_map.hR :I 43B :
U In file included from T /usr/local/clang/include/absl/container/hash_container_defaults.hE :_ 19 CA:
ABIn file included from PS/usr/local/clang/include/absl/container/internal/hash_function_defaults.hTL:U_59RI:
ENIn file included from DT/usr/local/clang/include/absl/strings/cord.h_E:BR94YN:
(AIn file included from tL/usr/local/clang/include/absl/strings/internal/cordz_info.hh_:iA31sT:
)T/usr/local/clang/include/absl/synchronization/mutex.h)R:,I499 B: U35 T: E  _warning:  Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] A
 P T  U R499E  |    D _ Bv oY i (dt  hEi ns a) b )l )e  D e   b\ u
 g       L | o                                              ^~~~ g
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_      n| u                                                   ^l
la/usr/local/clang/include/absl/container/internal/common.hb:l31e: 9n:a mnote: emacro 'ABSL_INTERNAL_IF_true' defined here)
;
         | 31                                  ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f257i:n23e:  Anote: Bexpanded from macro 'absl_nullable'S
L_  I257N | T#EdReNfAiLn_e/usr/local/clang/include/absl/container/internal/btree_container.hI :aF620b_s:lt59_r:un uewarning: l(passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]li
afb_  ls620ae | t i _ sNAfuBliSlLea_dbIl,NeT
E       .R| N.                      ^A.
L)_ Xi(ft_rsya_teimspfliaecde
,       | t        ^r
y_emplace_impl,In file included from  s2geography/coverings.cc&:&2,:
 In file included from fs2geography/coverings.ha:l6In file included from ss2geography/linear-referencing.cc:
e:In file included from )2;s2geography/geography.h:

:In file included from       4s2geography/linear-referencing.h| :
:                                                          ^In file included from 4
../src/s2/s2polygon.h:
:/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from 34:s2geography/geography.h:
596:In file included from :4../src/s2/mutable_s2shape_index.h9:
::In file included from 30 ../src/s2/s2polygon.h:
note: :macro 'ABSL_INTERNAL_X' defined hereIn file included from 29
/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67  /usr/local/clang/include/absl/container/flat_hash_map.h:
596:/usr/local/clang/include/absl/container/internal/btree_container.h | 43#::
d528In file included from e:/usr/local/clang/include/absl/container/hash_container_defaults.hf3:i:19n :
ewarning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] /usr/local/clang/include/absl/container/internal/hash_function_defaults.hA
:B59S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hI  :N52894T | :
 EIn file included from R /usr/local/clang/include/absl/strings/internal/cordz_info.hNA:AB31LS:
_L/usr/local/clang/include/absl/synchronization/mutex.hX_:(I549FN:uT40nE:cR ,Nwarning:  Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]CL
a_lXl  (e549ei | ,n   sKesrQttuaa_tloi,c r KvV_oaailsdu seI,in gc.nr.e,.m) ei n t Sn y sn ce hr tS e_ mo ( Mr _u at es xs *i   ga bn s _l\_i
nm      op| n        ^ln
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&      ,|                                         ^c
ons/usr/local/clang/include/absl/base/nullability.ht: 241&:,22
:       | note:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'

  529   | 241  |  # d e f i n e   a b s l _ n o n nturlule ,_ Ntornuneu)l;l

            | |                   ~~~~~~~~~~~                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/container/internal/btree_container.h511::62047::3 :note:  In file included from expanded from macro 'ABSL_INTERNAL_X'warning: s2geography/linear-referencing.cc
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
2:
  In file included from 511  s2geography/linear-referencing.h | 620 : |   4  :
A In file included from B s2geography/geography.hS : L 4_ :
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AIIn file included from LN/usr/local/clang/include/absl/container/flat_hash_map.h_T:XE43(RtN:
rAIn file included from yL/usr/local/clang/include/absl/container/hash_container_defaults.h__:Ae19mT:
pTIn file included from lR/usr/local/clang/include/absl/container/internal/hash_function_defaults.haI:cB59eU:
,T In file included from Et/usr/local/clang/include/absl/strings/cord.hr_:CyA94_P:
eTIn file included from mU/usr/local/clang/include/absl/strings/internal/cordz_info.hpR:lE31aD:
c_/usr/local/clang/include/absl/synchronization/mutex.heB:_Y550i(mt:hpi64ls:,)  )warning: &)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]& 
,   f    a 550l  | s  e )   ;  
          |    ^  
   /usr/local/clang/include/absl/container/internal/btree_container.h  :  611  :  52   :     note:   expanded from macro 'ABSL_INTERNAL_X' \
 
          | 611                                               ^~~~ |   
                b aAsBeS_Li_nItNeTrEnRaNlA:L:_PAeTrTTRhIrBeUaTdES_yCnAcPhT*U RaEbDs_lB_Yn(otnhniusl)l) ,w ) ; 
        |                                                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f\i
n      e|                                                     ^a
bs/usr/local/clang/include/absl/container/internal/common.hl:_32n:o9n:n unote: lmacro 'ABSL_INTERNAL_IF_false' defined herel
 _N   o32n | n#udlelf
i      n| e                     ^ 
ABSL_INTERNAL_IF_falIn file included from ss2geography/linear-referencing.cce:(2i:
fIn file included from _s2geography/linear-referencing.hs:a4t:
iIn file included from ss2geography/geography.hf:i4e:
dIn file included from ,../src/s2/s2polygon.h :.29.:
.In file included from )/usr/local/clang/include/absl/container/flat_hash_map.h :_43_:
VIn file included from A/usr/local/clang/include/absl/container/hash_container_defaults.h_:A19R:
GIn file included from S/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:/usr/local/clang/include/absl/container/internal/btree_container.h_59
::
      532In file included from | :/usr/local/clang/include/absl/strings/cord.h        ^24:
:94 :
In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
31:
/usr/local/clang/include/absl/synchronization/mutex.h  :532551 | : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      551  |      s t a t ifca lbsoeo)l; 
DIn file included from       es2geography/distance.ccc| :r                       ^2e
:
mIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hes2geography/distance.hn::t4964S::
y9In file included from n:s2geography/geography.hc :h4Snote: :
emacro 'ABSL_INTERNAL_X' defined hereIn file included from m
../src/s2/s2polygon.h(:M34  u:
t496In file included from e | ../src/s2/mutable_s2shape_index.hx#:*d30 e:
faiIn file included from bn/usr/local/clang/include/absl/container/btree_map.hse: l67A_:
B/usr/local/clang/include/absl/container/internal/btree_container.hnS:oL621n_:nI58Nu:lT lEwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]Rm
uN,A  
L621_       | X| (                                        ^ F
uA/usr/local/clang/include/absl/base/nullability.hnB:Sc241,L:_ 22IC:aN Tlnote: Eexpanded from macro 'absl_nonnull'lR
NeAe  L,241_  | X#K(dtQerufyia_nelem,  paMlbQasuclea_,ln otnr,ny uK_leVlam pl_luNaocneen_,ui lMmlVpa
ll      ,u| e                      ^&,
 &.,. .t)r u In file included from e s2geography/linear-referencing.cc) :; 2
\:
      
In file included from |       s2geography/linear-referencing.h                                                         ^| :
        ^4
/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 596s2geography/geography.h::94::
 In file included from ../src/s2/s2polygon.hnote: :macro 'ABSL_INTERNAL_X' defined here29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43  :
596In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h#:d19e:
fIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e59 :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L94_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hT:E31R:
N/usr/local/clang/include/absl/synchronization/mutex.hA:L552_:X64(:F uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
, Ca  l552l | e e ,   K Q u a l ,   K V a l u e ,   . . . )                    b a s e _ i n t e r n a l\:
:      P| e        ^r
ThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 531#:d3e:f iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
 abs  l531_ | n o nAnBuSlLl _No_nInNuTlElR
N      A| L                     ^_
X(insert_o/usr/local/clang/include/absl/container/internal/btree_container.hr:_621a:s3s:i gwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
In file included from  s2geography/linear-referencing.cci  :n6212s | :
e In file included from  rs2geography/linear-referencing.hAt:_B4oS:
rLIn file included from __s2geography/geography.hIa:Ns4Ts:
EiRgIn file included from nN_../src/s2/s2polygon.hAi:Lm29_p:
XlIn file included from (,/usr/local/clang/include/absl/container/flat_hash_map.ht :rc43yo:
_nIn file included from es/usr/local/clang/include/absl/container/hash_container_defaults.hmt:p 19&l:
a,In file included from c /usr/local/clang/include/absl/container/internal/hash_function_defaults.he&:,&59 ,:
t In file included from rf/usr/local/clang/include/absl/strings/cord.hya:_l94es:
meIn file included from p,/usr/local/clang/include/absl/strings/internal/cordz_info.hl
:a      31c| :
e  ^/usr/local/clang/include/absl/synchronization/mutex.h_
:i556m/usr/local/clang/include/absl/container/internal/btree_container.h:p:38l509:,:  52warning: &:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]& 
,note:  expanded from macro 'ABSL_INTERNAL_X't  r
556u | e )   ;v509
o |       i | d  ^  
L o/usr/local/clang/include/absl/container/internal/btree_container.hc :k 611S :l 52o : w  LAnote: oexpanded from macro 'ABSL_INTERNAL_X'oB
SpL(_  SI611yN | n TcE h RWN a AiL t _P Aa rT TaAmRBsSI*BL _UaIbTNsTEl_E_RCnNoAAnLPn_uTAlUTlTR RwEIDa_BiUBtTpYE(,t_ ChiAinPtsT )UfR)lE,aDg_s B )Y; ( 
 t      h | i                                     ^ s
) )/usr/local/clang/include/absl/base/nullability.h, :  241  :  22  :       note:  expanded from macro 'absl_nonnull'   
        241   |  #  d   e\ f
 i n       e |   a                                                   ^ b
 s l/usr/local/clang/include/absl/container/internal/common.h\_
:n      o32| n                                                   ^:n
u9l:/usr/local/clang/include/absl/container/internal/common.hl : note: 31macro 'ABSL_INTERNAL_IF_false' defined here_:
N9o:   n n32note: u | macro 'ABSL_INTERNAL_IF_true' defined here#ld
le
f         i31| n |                      ^#e
d eAfBiSnLe_ IANBTSELR_NIANIn file included from LTs2geography/linear-referencing.cc_E:RI2NF:
A_In file included from Lfs2geography/linear-referencing.h_a:Il4Fs:
_eIn file included from t(s2geography/geography.hri:uf4e_:
(sIn file included from iaft../src/s2/s2polygon.h_i:ss29af:
tiIn file included from iesd/usr/local/clang/include/absl/container/flat_hash_map.hf,:i 43.e:
.dIn file included from ,./usr/local/clang/include/absl/container/hash_container_defaults.h ):. 19._:
_.In file included from )V/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA _:iA59fR:
_GIn file included from sS/usr/local/clang/include/absl/strings/cord.ha_:_t94i
:
s      In file included from f| /usr/local/clang/include/absl/strings/internal/cordz_info.h        ^i:e
31d:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 558        ^:
35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2geography/coverings.cc558: | 2 In file included from :
 s2geography/distance.ccbIn file included from :os2geography/coverings.h2o::
l6In file included from  :
s2geography/distance.hLIn file included from :os2geography/geography.h4c::
k4In file included from S:
s2geography/geography.hlIn file included from :o../src/s2/s2polygon.h4w::
W34In file included from i:
../src/s2/s2polygon.htIn file included from :h../src/s2/mutable_s2shape_index.h34D::
e30In file included from a:
../src/s2/mutable_s2shape_index.hdIn file included from :l/usr/local/clang/include/absl/container/btree_map.h30i::
n67In file included from e:
/usr/local/clang/include/absl/container/btree_map.h(/usr/local/clang/include/absl/container/internal/btree_container.h:M:67u531:
H:/usr/local/clang/include/absl/container/internal/btree_container.ho3:w:621  :warning: a3bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:s
 lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  n
o531n | n  u 621l  | l A  hBAoSBwSL,L
__      II| NNT                                  ^TE
REN/usr/local/clang/include/absl/base/nullability.hAR:LN241_A:LX22(_:tX (note: riexpanded from macro 'absl_nonnull'yn
_se  me241pr | l#tad_coeerf,_i naters ysa_ibesgmlpn_ln,aoc neni_uinlmlsp le_,rN ot&n_&n,ou lrtlr_
ua      es| )                     ^s;

i      g| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
imIn file included from p/usr/local/clang/include/absl/container/internal/btree_container.hs2geography/linear-referencing.ccl::,6112 ::
c47In file included from o:s2geography/linear-referencing.hn :snote: 4expanded from macro 'ABSL_INTERNAL_X't:

 In file included from &s2geography/geography.h  ,:611 4 | &:
 &In file included from  ,../src/s2/s2polygon.h  : f29 a:
 lIn file included from s /usr/local/clang/include/absl/container/flat_hash_map.h e: ,43 
:
A      In file included from B| /usr/local/clang/include/absl/container/hash_container_defaults.h  ^S:L
19_/usr/local/clang/include/absl/container/internal/btree_container.h:
I:In file included from N511/usr/local/clang/include/absl/container/internal/hash_function_defaults.hT::E5259R::
N In file included from Anote: /usr/local/clang/include/absl/strings/cord.hLexpanded from macro 'ABSL_INTERNAL_X':_
94A:
TIn file included from   T/usr/local/clang/include/absl/strings/internal/cordz_info.hR511:I | 31B :
U /usr/local/clang/include/absl/synchronization/mutex.hT : E559_ :C 46 A :P   Twarning: Utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]AR
BES  DL559__ | B IYN ( t Th iE s R) )N , A  L  _  A  T T  R   I B  U  T  E  _      C   A   P    TcU o Rn sE t D \C_
oB      nYd| (i                                              ^~~~ttih
oins*) )a)b s l  _ n u l l a b l e   c o n d , 
        |                                               ^ 
 \/usr/local/clang/include/absl/base/nullability.h
:      257| :                                                   ^23
: /usr/local/clang/include/absl/container/internal/common.hnote: :expanded from macro 'absl_nullable'32
:9  :257  | note: #macro 'ABSL_INTERNAL_IF_false' defined hered
efi   n32e |  #adbesfli_nneu lAlBaSbLl_eI N_TNEuRlNlAaLb_lIeF
_      f| a                      ^l
se(if_satisfied, ...) __VAIn file included from _s2geography/linear-referencing.ccA:R2G:
SIn file included from _s2geography/linear-referencing.h_:
4      :
| In file included from         ^s2geography/geography.h
:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void/usr/local/clang/include/absl/container/internal/btree_container.h :L622o:c3k:S lwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]w
(MuH  o622w |   a bAsBlS_Ln_oInNnIn file included from TuEls2geography/coverings.ccRl:N 2AhL:
o_wIn file included from X,s2geography/coverings.h( :tcr6oy:
n_sIn file included from etms2geography/geography.h pCl:oa4nc:
deIn file included from i,t../src/s2/s2polygon.h i:tor34ny*:
_ eIn file included from am../src/s2/mutable_s2shape_index.hbp:sll30a_:
cneIn file included from u_lh/usr/local/clang/include/absl/container/btree_map.hli:an67bt:
l_/usr/local/clang/include/absl/container/internal/btree_container.hei m:cp534ol:n,d 23,c:
o       n| swarning:                       ^tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
 
&/usr/local/clang/include/absl/base/nullability.h,:  241 534:f | 22a :l  s note: e expanded from macro 'absl_nonnull', 

          |  241  ^  | 
# d/usr/local/clang/include/absl/container/internal/btree_container.he : f 611 i :n 52 e : t rnote: auexpanded from macro 'ABSL_INTERNAL_X'be
)s;l  _
611n       | o | n                      ^ n 
u l/usr/local/clang/include/absl/container/internal/btree_container.h l:   496_ N: o 9nAn:BuS lLnote: l_
Imacro 'ABSL_INTERNAL_X' defined here      N
| T                     ^E
  R496N | A#Ld_eIn file included from Afs2geography/linear-referencing.ccTi:Tn2Re:
I BIn file included from AUs2geography/linear-referencing.hTB:ES4_L:
C_In file included from IANs2geography/geography.hPT:ET4URR:
ENIn file included from DA../src/s2/s2polygon.h_L:B_29YX:
((In file included from tF/usr/local/clang/include/absl/container/flat_hash_map.huh:in43sc:
),In file included from ) /usr/local/clang/include/absl/container/hash_container_defaults.h,C:a 19l :
 lIn file included from  e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h: e59, :
  In file included from  K/usr/local/clang/include/absl/strings/cord.hQ u: a94l ,:
  In file included from M Q/usr/local/clang/include/absl/strings/internal/cordz_info.h u: a31 l:
 ,/usr/local/clang/include/absl/synchronization/mutex.h  : K562V : a58 l: u  ewarning:  ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
\M
V  a      l562| u | e                                                   ^ ,
  ./usr/local/clang/include/absl/container/internal/common.hv.:.o32i):d 9   : L  o\note: c
macro 'ABSL_INTERNAL_IF_false' defined herek      
S| l        ^o   w
32( | M#udHeofwi naeb sAlB_SnLo_nInNuTlElR NhAoLw_,I Fc_ofnaslts eC(oinfd_istaitoins*f iaebds,l _.n.u.l)l a_b_lVeA _cAoRnGdS,_
_      
|                                                                ^| 
        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2geography/linear-referencing.cc::5332::
3In file included from :s2geography/linear-referencing.h :4warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
s2geography/geography.h:4:
In file included from   ../src/s2/s2polygon.h533: | 29 :
 In file included from A/usr/local/clang/include/absl/container/flat_hash_map.hB:S43L:
_In file included from I/usr/local/clang/include/absl/container/hash_container_defaults.hN:T19E:
RIn file included from N/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:L59_:
XIn file included from (/usr/local/clang/include/absl/strings/cord.hi:n94s:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.ht:_31o:
r/usr/local/clang/include/absl/synchronization/mutex.h_:a565s:s36i:g nwarning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
inse  In file included from r565s2geography/distance.cct | : _2 o:
vrIn file included from o_s2geography/distance.hai:sd4 s:
UiIn file included from gns2geography/geography.hnl:_o4ci:
kmIn file included from pSl../src/s2/s2polygon.hl,:o 34wc:
(oIn file included from Sn../src/s2/mutable_s2shape_index.hys:nt30 c:
&hIn file included from W,/usr/local/clang/include/absl/container/btree_map.h a:&i67t&:
P,/usr/local/clang/include/absl/container/internal/btree_container.ha :rf624aa:ml3ss:*e  ,warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a      
b| s  ^l  _
624n | /usr/local/clang/include/absl/container/internal/btree_container.hu l: lA509aBb:SlLe52_ :IwN aTinote: Etexpanded from macro 'ABSL_INTERNAL_X'RpN
)A LA  _B509XS( | Lt_ rAy T_T eR mI pBl UaT c E e_ ,AC OBtLSrDLy;__
IeN      mT| p                                   ^El
aRc/usr/local/clang/include/absl/base/nullability.hNeA_:Lh257_i:nA23tT:_T iRnote: mexpanded from macro 'absl_nullable'Ip
lB  ,U257 T | c#Eod_neCsfAtPi nT&e,U  RatbErsuDle__,nB
uY      (lt| l  ^hai
bsl/usr/local/clang/include/absl/container/internal/btree_container.h)e:) 611,_:N 52u :l  l note:  aexpanded from macro 'ABSL_INTERNAL_X'b 
l e   
 611        | |                         ^  
                A B S L _\I
N      T| E                                                   ^R
NA/usr/local/clang/include/absl/container/internal/common.hL:_32A:T9T:R Inote: Bmacro 'ABSL_INTERNAL_IF_false' defined hereU
TE_   C32A | P#TdUeRfIn file included from Eis2geography/linear-referencing.ccDn:_e2B :
AYIn file included from B(s2geography/linear-referencing.hSt:Lh4_i:
sIIn file included from )Ns2geography/geography.h)T:,E4 R:
 NIn file included from  A../src/s2/s2polygon.h L: _29 I:
 FIn file included from  _/usr/local/clang/include/absl/container/flat_hash_map.h f:a 43l s:
 eIn file included from  (/usr/local/clang/include/absl/container/hash_container_defaults.h i: f19_ :
s In file included from a /usr/local/clang/include/absl/container/internal/hash_function_defaults.ht : i59 s:
 fIn file included from  i/usr/local/clang/include/absl/strings/cord.h e: d94 ,:
\ In file included from .
/usr/local/clang/include/absl/strings/internal/cordz_info.h.      :.| )31                                                   ^ :
_/usr/local/clang/include/absl/synchronization/mutex.h
_:V576A/usr/local/clang/include/absl/container/internal/common.h:_:49A31:R: Gwarning: 9Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:_
 _note: 
  macro 'ABSL_INTERNAL_IF_true' defined here      576
|  |         ^    
31  | v#odiedf iTnrey RAeBIn file included from mSs2geography/coverings.ccoL:v_e2I(:
NbTIn file included from aEss2geography/coverings.hReN_:AiL6n_:
tIeIn file included from Frs2geography/geography.h_nt:ar4lu:e:
:(In file included from Pi../src/s2/s2polygon.hefr:_Ts34ha:
rtIn file included from eia../src/s2/mutable_s2shape_index.hsdf:Siy30en:
dcIn file included from ,h */usr/local/clang/include/absl/container/btree_map.h. .:a.67b):
s l/usr/local/clang/include/absl/container/internal/btree_container.hi_f:n_o533sn:ant3uil:slf  iwarning: se)passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d;


            | |           ^                                                ^533

 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: In file included from Nexpanded from macro 'absl_nonnull's2geography/distance.ccT
:E2  R:
241NIn file included from  | A#s2geography/distance.hdL:e_4fXi:
n(In file included from ei s2geography/geography.hna:sb4se:
lrIn file included from _t../src/s2/s2polygon.h_no:or34n_:
naIn file included from us../src/s2/mutable_s2shape_index.hls:li30 g:
n_,In file included from N /usr/local/clang/include/absl/container/btree_map.hion:ns67ne:
ur/usr/local/clang/include/absl/container/internal/btree_container.hlt:l_624o
:r      _3| a:                     ^s 
swarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]g
n_imp  l624, |   c oAnBIn file included from sSs2geography/linear-referencing.ccLt:_ 2I&:
,NIn file included from  Ts2geography/linear-referencing.hE&:R&4N,:
A In file included from Lfs2geography/geography.h_a:Xl4(ste:
r,In file included from y
../src/s2/s2polygon.h_      :e| 29m  ^:
p
In file included from l/usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/container/internal/btree_container.ha:c:43e511:
,:In file included from  52/usr/local/clang/include/absl/container/hash_container_defaults.ht::r 19note: yexpanded from macro 'ABSL_INTERNAL_X':
_
In file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hm:  p59511l:
a | In file included from c /usr/local/clang/include/absl/strings/cord.h e:_ 94h :
i In file included from n /usr/local/clang/include/absl/strings/internal/cordz_info.ht :_ 31i :
m /usr/local/clang/include/absl/synchronization/mutex.hAp:lB578,S: Lc_45oI:nN sTwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E 
R&N,  A 578tL | r_ uA TeTv,oR
iI      dB| U   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~TB
lEo  c_625kC | (A b aP sT e U_ Ri nE Dt _e Br Yn a( tl h: :i sP) e) rc)Toh nrs e t a_ diS tye nrc aht *o  ra (b hsil n_t n)o  nA nB uSl Ll _  IsN )T; E 
R       N\| A                                            ^
L
      _/usr/local/clang/include/absl/base/nullability.h| C                                                   ^:O
241M:/usr/local/clang/include/absl/container/internal/common.hM22:A:)31 ;:note: 
expanded from macro 'absl_nonnull'9      
:|                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~note: 241macro 'ABSL_INTERNAL_IF_true' defined here
 | 
#/usr/local/clang/include/absl/container/internal/btree_container.hd:   e611f31:i | 47n#:ed e note: aexpanded from macro 'ABSL_INTERNAL_X'fb
isnle  _ 611An | Bo nS Ln _u Il Nl  T E_ RN oN AnALnBu_SlLIl_
FI      _N| Tt                     ^ErR
uNeA(Li_fA_TsTaRtIiBIn file included from sUfs2geography/linear-referencing.cciT:eE2_d:
C,In file included from A s2geography/linear-referencing.hP.:T.4U.:
R)In file included from E Ds2geography/geography.hi_:Bf4Y_(:
tsIn file included from ha../src/s2/s2polygon.hit:si)29s):
,f In file included from  i/usr/local/clang/include/absl/container/flat_hash_map.h e: d 43 
:
       In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h         ^: 
19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
\In file included from /usr/local/clang/include/absl/synchronization/mutex.h
s2geography/coverings.cc:      :580| 2:                                              ^~~~:
34
In file included from :s2geography/coverings.h :warning: 6type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from s2geography/geography.h:4  :
580In file included from  | ../src/s2/s2polygon.h : 34b:
aIn file included from s../src/s2/mutable_s2shape_index.he:_30i:
nIn file included from t/usr/local/clang/include/absl/container/btree_map.he:r67n:
a/usr/local/clang/include/absl/container/internal/btree_container.hl::533::P3e:r Twarning: h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
eadSyn  c533h | *   aAbBsSlL__nIuNlTlEaRbNlAeL _WXa(kienuspe(r
t      _| o                                 ^r
_a/usr/local/clang/include/absl/base/nullability.hs:s257i:g23n:,  note: iexpanded from macro 'absl_nullable'n
se  r257t | _#odre_faisnsei ganb_silm_pnlu,l lcaobnlset  _&N,u l&l&a,b lfea
l      s| e                      ^,

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 | In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree_container.hs2geography/geography.h :: 6264 ::
 3In file included from  : ../src/s2/s2polygon.h  warning: :tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]29r
u:
eIn file included from   )/usr/local/clang/include/absl/container/flat_hash_map.h626;: | 
43       :
 | In file included from A                  ~~~~~/usr/local/clang/include/absl/container/hash_container_defaults.hB
:S19L:
/usr/local/clang/include/absl/container/internal/btree_container.h_In file included from :I/usr/local/clang/include/absl/container/internal/hash_function_defaults.hN511:T:59E47:
R:In file included from N /usr/local/clang/include/absl/strings/cord.hA:Lnote: 94_expanded from macro 'ABSL_INTERNAL_X':
X
In file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.ht:  r31511y:
_/usr/local/clang/include/absl/synchronization/mutex.h | e:m 581p : l38 a:c   warning:  etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] ,
  t  r 581yA | _B e SmL p _l aI NcbTea_sEheRi_NnitAnL_t_ieAmrpTnlaT,l R:I&:&BP,UeT rEfTa_hlrCseeAaP,dT
SU      yR| nE  ^cD
h_*/usr/local/clang/include/absl/container/internal/btree_container.hB :aY611b(:st52lh:_i nsnote: oexpanded from macro 'ABSL_INTERNAL_X')n
)n)u   l 611l  |    w  )  ; 
          |                                        ^  
  /usr/local/clang/include/absl/base/nullability.h  : A241B :S 22L :_ I  N note:  T expanded from macro 'absl_nonnull'E 
R N  A 241L\ | _
#Ad      TeT| f                                              ^~~~Ri
InBeU TaEb_sClA_PnToUnRnEuDl_lB Y_(Ntohninsu)l)l,
        |                       ^ 
                      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9:In file included from  s2geography/linear-referencing.cc:note: 2macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from s2geography/linear-referencing.h:4   :
32In file included from  | s2geography/geography.h#:d4e:
fIn file included from i../src/s2/s2polygon.hn:e29 :
AIn file included from B/usr/local/clang/include/absl/container/flat_hash_map.hS:L43_:
IIn file included from N/usr/local/clang/include/absl/container/hash_container_defaults.hT:E19R:
NIn file included from A/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:_59I:
FIn file included from _/usr/local/clang/include/absl/strings/cord.hf:a94l:
sIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h(:i31f:
_/usr/local/clang/include/absl/synchronization/mutex.hs:a585t:i20s:f iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
, ..  .585) |   _ _vVoAi_dA RTGrSa_n_s
(      M| u        ^H
ow absl_nonnull how); /usr/local/clang/include/absl/container/internal/btree_container.h :/536/: 24u:s ewarning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
for   536C | o n d V a r - > M u t e x   t r a n sffaelrs
e      )| ;                   ^

      | /usr/local/clang/include/absl/base/nullability.h                       ^:
241:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 496note: :expanded from macro 'absl_nonnull'9
:   note: 241macro 'ABSL_INTERNAL_X' defined here | 
#de  f496i | n#ed eafbisnle_ nAoBnSnLu_lIlN T_ENRoNnAnLu_lXl(
F      u| n                     ^c
, CIn file included from as2geography/distance.ccl:l2e:
eIn file included from ,s2geography/distance.h :K4Q:
uIn file included from In file included from as2geography/geography.hls2geography/linear-referencing.cc:,:4 2:
M:
In file included from QIn file included from ../src/s2/s2polygon.hus2geography/linear-referencing.h:a:34l4:
,:
In file included from  In file included from ../src/s2/mutable_s2shape_index.hKs2geography/geography.h:V:30a4:
l:
uIn file included from eIn file included from /usr/local/clang/include/absl/container/btree_map.h,../src/s2/s2polygon.h: :M6729V:
:
a/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from l:/usr/local/clang/include/absl/container/flat_hash_map.hu628e::,433 :
:.In file included from . .warning: /usr/local/clang/include/absl/container/hash_container_defaults.h)passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]: 
19 :
 In file included from    /usr/local/clang/include/absl/container/internal/hash_function_defaults.h 628\:
 | 59       :
 | In file included from         ^A/usr/local/clang/include/absl/strings/cord.hB
:S94L:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A586L:_43X:( twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
_em  p586l | a c ev,o itdr yF_eerm(pblaascee__ihnitnetr_niamlp:l:,P e&r&Th,r etarduSey,n
c      h| *  ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l611_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l
      |                                             ^611
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bAsTlT_Rn/usr/local/clang/include/absl/container/internal/btree_container.hIo:BnU535nTu:El_l3C A:_P NTowarning: Upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nRn
EuDl_lB  
Y535      ( | t |  h                     ^iA
sB)S)L,_ I N T E R N A L In file included from _ Xs2geography/linear-referencing.cc (: i2 n:
 sIn file included from  es2geography/linear-referencing.h r: t4_ :
o In file included from  rs2geography/geography.h _ :a s4 s:
 iIn file included from g ../src/s2/s2polygon.hn\,:
 29i      :
n| sIn file included from                                                    ^e/usr/local/clang/include/absl/container/flat_hash_map.h
r:t/usr/local/clang/include/absl/container/internal/common.h43_::
o31In file included from r:/usr/local/clang/include/absl/container/hash_container_defaults.h_9:a:19s s:
note: iIn file included from macro 'ABSL_INTERNAL_IF_true' defined hereg/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
n:_   i5931m:
p | lIn file included from #,/usr/local/clang/include/absl/strings/cord.hd :ec94fo:
inIn file included from ns/usr/local/clang/include/absl/strings/internal/cordz_info.het:  31&A,:
 B/usr/local/clang/include/absl/synchronization/mutex.h&S&:L,590_ :It40Nr:Tu Eewarning: R,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N

A      L|     ^_590I
 | F /usr/local/clang/include/absl/container/internal/btree_container.h_ t:er509xu:pel52(ii:cfi _tsnote:  expanded from macro 'ABSL_INTERNAL_X'aMt
uitse  fxi509(ec | do ,n   s.t . . v) o  li af t_i slaAetB iSMsLuf_tieIexdN*
T       aE| bR        ^Ns
AlL__nAuTlTlRaIbBlIn file included from UeTs2geography/distance.cc E:/_2C*:
AiPIn file included from Tgs2geography/distance.hnU:oR4rE:
De_In file included from dBs2geography/geography.h*Y:(/4)t:
 hIn file included from {i../src/s2/s2polygon.h}s:)
34)      :
,| In file included from                                         ^ ../src/s2/mutable_s2shape_index.h 
: /usr/local/clang/include/absl/base/nullability.h30 ::
 257In file included from  : /usr/local/clang/include/absl/container/btree_map.h23 : : 67  :
note:  /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nullable' :
 628   : 257 3 |  :#   dwarning:  e 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f 
i\n
e         | 628a                                                   ^ | b 
s lA_BS/usr/local/clang/include/absl/container/internal/common.hnLu_l:IlN31aTbE:lRe9N :A_L N_note: uXmacro 'ABSL_INTERNAL_IF_true' defined herel(
ltarby   l_e31e
m |       p#| ld                      ^ae
cfei,n et rAyB_SeLm_pIlNaTcEeR_NhAiLn_tI_Fi_mtprlu,e (&i&f,_ startuies,f
i      e| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 ..  .629) |   i f _ s a t i s f i e d 
        |          ^ 
 const_iterator(hinIn file included from ts2geography/coverings.cc): 2A:
BIn file included from Ss2geography/coverings.hL:_6I:
NIn file included from Ts2geography/geography.hE:R4N:
AIn file included from L../src/s2/s2polygon.h_:C34O:
MIn file included from M../src/s2/mutable_s2shape_index.hA:)30;:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/container/internal/btree_container.h535::6113::47 :warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]note: 
expanded from macro 'ABSL_INTERNAL_X'
    611535 |  |      A B S L _ I N TAEBRSNLA_LI_NXT(EiRnNsAeLr_tA_ToTrR_IaBsUsTiEg_nC,A PiTnUsReErDt__BoYr(_tahsissi)g)n,_ i m p l ,   c o n s t   & ,   & & ,   t r u e , 
       \| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                                                 ^~~~536
 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_/usr/local/clang/include/absl/container/internal/btree_container.hI:N638T:E63R:N Awarning: L'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
IF_f  a638l | s e ( i f _ scaotnisstf ikeedy,_ a.r.g.<)K >_ _&VkA _AABRSGLS__I_N
T      E| R        ^N
AL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAIn file included from Ls2geography/coverings.cc_:A2T:
TIn file included from Rs2geography/coverings.hI:B6U:
TIn file included from Es2geography/geography.h_:C4A:
PIn file included from T../src/s2/s2polygon.hU:R34E:
DIn file included from _../src/s2/mutable_s2shape_index.hB:Y30(:
tIn file included from h/usr/local/clang/include/absl/container/btree_map.hi:s67):
)/usr/local/clang/include/absl/container/internal/btree_container.h
:      538| :                                                                   ^~~~23
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      | /usr/local/clang/include/absl/container/internal/btree_container.h                      ^:
648:7/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/synchronization/mutex.h: :496warning: 635:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:9
29::    note: warning: macro 'ABSL_INTERNAL_X' defined heretype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]648

 |        496 635  |  |  # dte hfeixnipsel)i )cA iBAtBS SLMLu__tIAeNTxTTLREoIRcBkNU(TAMEuL_t_LeIXxF(*E FTauIbMnsEcl_,_B nOoCUnNanDlu ll{le
 e      m,| u      ^~~~ )K
 QAuBaSlL,_ EMXQCuLaUlS,I VKEV_aLlOuCeK,_ FMUVNaClTuIeO,N (.m.u.))
        |                              ^ 
 \
/usr/local/clang/include/absl/base/nullability.h      :| 241        ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3  :641  | warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
expl  i537c | i t  AMBuStLe_xILNoTcEkR(NMAuLt_eXx(&i nmsue rAtB_SoLr__IaNsTsEiRgNnA,L _iAnTsTeRrItB_UoTrE__aCsAsPiTgUnR_EiDm_pBlY,( tchoinss)t, 
&      ,|                                                                     ^~~~&
&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           A/usr/local/clang/include/absl/synchronization/mutex.hB:S649L:_29I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_  A649T | T R IeBxUpTlEi_cCiAtP TMUuRtEeDx_LBoYc(kt(hMiust)e)x,*   a b s l _ n o n n u l l   m u ,   c o n s t  \C
o      n| d                                                   ^i
ti/usr/local/clang/include/absl/container/internal/common.ho:n31&: 9c:o nnote: dmacro 'ABSL_INTERNAL_IF_true' defined here)

      |                                ^31
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ IaFb_stlr_uneo(ninfu_lsla t_iNsofnineudl,l 
.      .| .                     ^)
 if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3In file included from :s2geography/linear-referencing.cc :warning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from s2geography/linear-referencing.h/usr/local/clang/include/absl/container/internal/btree_container.h::4511:
:In file included from 52s2geography/geography.h:: 4:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2polygon.h
:29:
In file included from   /usr/local/clang/include/absl/container/flat_hash_map.h511: | 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59A:
BIn file included from S/usr/local/clang/include/absl/strings/cord.hL:_94I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hE:R31N:
A/usr/local/clang/include/absl/synchronization/mutex.hL:_670A:T74T:R Iwarning: B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]U
TE_CA  P670T | U R EeDx_pBlYi(ctihti sR)e)a)d e r M u t e x L o c k ( M u t e x &   m u   A B\S
L      _| I                                                   ^N
TE/usr/local/clang/include/absl/container/internal/common.hR:N31A:L9_:A Tnote: Tmacro 'ABSL_INTERNAL_IF_true' defined hereR
IBU   T31E | _#CdAePfTiUnReE DA_BBSYL(_tIhNiTsE)R)N
A      L| _                                                                         ^~~~I
F_true(if_satisfied, ...) if_satisfied
      /usr/local/clang/include/absl/synchronization/mutex.h| :        ^678
:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678In file included from  | s2geography/coverings.cc : 2e:
xIn file included from ps2geography/coverings.hl:i6c:
iIn file included from ts2geography/geography.h :R4e:
aIn file included from ../src/s2/s2polygon.hd:e34r:
MIn file included from u../src/s2/mutable_s2shape_index.ht:e30x:
LIn file included from o/usr/local/clang/include/absl/container/btree_map.hc:k67(:
M/usr/local/clang/include/absl/container/internal/btree_container.hu:t537e:x3*:  awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
l_non  n537u | l l  AmBuS)L _AIBNSTLE_RSNHAALR_EXD(_iLnOsCeKr_tF_UoNrC_TaIsOsNi(gmnu,) 
i      n| s                                  ^e
rt_/usr/local/clang/include/absl/base/nullability.ho:r241_:a22s:s inote: gexpanded from macro 'absl_nonnull'n
_i  m241p | l#,d ecfoinnset  a&b,s l&_&n,o ntnruulel, 
_      N| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nu  l538l | 
        |                       ^ 
              true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 | In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from As2geography/geography.hB:S4L:
_In file included from I../src/s2/s2polygon.hN:T29E:
RIn file included from N/usr/local/clang/include/absl/container/flat_hash_map.hA:L43_:
AIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hT:R19I:
BIn file included from U/usr/local/clang/include/absl/container/internal/hash_function_defaults.hT:E59_:
CIn file included from A/usr/local/clang/include/absl/strings/cord.hP:T94U:
RIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hD:_31B:
Y/usr/local/clang/include/absl/synchronization/mutex.h(:t681h:i74s:) )warning: )'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        681  |      e x p l i c i t   R e a d e\r
M      u| t                                              ^~~~e
xLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull m/usr/local/clang/include/absl/container/internal/btree_container.hu:,541 :c24o:n swarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
Con  d541i | t i o n &   c o n d ) 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h :f241a:l22s:e )note: ;expanded from macro 'absl_nonnull'

      |                        ^
  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 496#:d9e:f inote: nmacro 'ABSL_INTERNAL_X' defined heree
 ab  s496l | _#ndoenfniunlel  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assIn file included from is2geography/linear-referencing.ccg:n2_:
iIn file included from ms2geography/linear-referencing.hp:l4,:
 In file included from &s2geography/geography.h&:,4 :
cIn file included from o../src/s2/s2polygon.hn:s29t:
 In file included from &/usr/local/clang/include/absl/container/flat_hash_map.h,: 43f:
aIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hs:e19,:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :  ^59
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::50994::
52In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :note: 31expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/synchronization/mutex.h:710:  74509: |   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        710  | A B SeLx_pIlNiTcEiRtN AWLr_iAtTeTrRMIuBtUeTxEL_oCcAkP(TMUuRtEeDx_&B Ym(ut hAiBsS)L)_,I N T E R N A L _ A T T R I B U T E _ C A P T U R\E
D      _| B                                                   ^Y
(t/usr/local/clang/include/absl/container/internal/common.hh:i32s:)9):
       note: | macro 'ABSL_INTERNAL_IF_false' defined here                                                                         ^~~~

   32 | #define ABSL_INTERNAL_IF_false(/usr/local/clang/include/absl/synchronization/mutex.hi:f718_:s35a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied  ,718  | . . .e)x p_l_iVcAi_tA RWGrSi_t_e
r      M| u        ^t
exLock(Mutex*In file included from  s2geography/coverings.cca:b2s:
lIn file included from _s2geography/coverings.hn:o6n:
nIn file included from us2geography/geography.hl:l4 :
mIn file included from u../src/s2/s2polygon.h):
34      :
| In file included from                                   ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22/usr/local/clang/include/absl/container/internal/btree_container.h:: 540note: :expanded from macro 'absl_nonnull'3
:   warning: 241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
#de  f540i | n e  AaBbSsLl__InNoTnEnRuNlAlL __XN(oinnnsuelrlt
_      o| r                     ^_
assign, insert_or_assign_impl, &&, conIn file included from ss2geography/linear-referencing.cct: 2&:
,In file included from  s2geography/linear-referencing.hf:a4l:
sIn file included from es2geography/geography.h,:
4      :
| In file included from   ^../src/s2/s2polygon.h
:29:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h511::4352:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hnote: :expanded from macro 'ABSL_INTERNAL_X'19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59511:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hA:B722S:L74_:I Nwarning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
RNAL  _722A | T T ReIxBpUlTiEc_iCtA PWTrUiRtEeDr_MBuYt(etxhLiosc)k)()M u t e x &   m u   A B S L _ I N T E R N A L _ A\T
T      R| I                                                   ^B
UT/usr/local/clang/include/absl/container/internal/common.hE:_32C:A9P:T Unote: Rmacro 'ABSL_INTERNAL_IF_false' defined hereE
D_   B32Y | (#tdheifsi)n,e
       A| B                                                                         ^~~~S
L_INTERNAL_IF_false(if_satisfied, .../usr/local/clang/include/absl/synchronization/mutex.h): 731_:_35V:A _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
GS__  
731       | |          ^ 
explicit WriterMutexLock(Mutex* absl_nonnull mu, constIn file included from  s2geography/coverings.ccC:o2n:
dIn file included from is2geography/coverings.ht:i6o:
nIn file included from &s2geography/geography.h :c4o:
nIn file included from d../src/s2/s2polygon.h):
34      :
| In file included from                                   ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22/usr/local/clang/include/absl/container/internal/btree_container.h:: 543:note: 23expanded from macro 'absl_nonnull':
 warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #  d543e |                   truef)i;n
e       | a                      ^b
sl/usr/local/clang/include/absl/container/internal/btree_container.h_:n496o:n9n:u lnote: lmacro 'ABSL_INTERNAL_X' defined here 
_No  n496n | u#ldle
f      i| n                     ^e
 ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_asIn file included from ss2geography/linear-referencing.cci:g2n:
_In file included from is2geography/linear-referencing.hm:p4l:
,In file included from  s2geography/geography.h&:&4,:
 In file included from c../src/s2/s2polygon.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.h&:,43 :
fIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hl:s19e:
,In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59  ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h94::
509In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h52::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_INTERNAL_X':
801:20:   509warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       801  |      CAoBnSdLi_tIiNoTnE(RbNool (A*La_bAsTlT_RnIoBnUnTuEl_lC AfPuTnUcR)E(Dv_oBiYd(*t haibss)l)_,n u l l a b i l i t y _ u n k n o w n ) , 
        |                     ^\

      |                                                    ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/container/internal/common.h22::32 :note: 9expanded from macro 'absl_nonnull':
 note:   macro 'ABSL_INTERNAL_IF_false' defined here241
 | #d   e32f | i#ndee faibnsel _AnBoSnLn_uIlNlT E_RNNoAnLn_uIlFl_
f      a| l                     ^s
e(if_saIn file included from ts2geography/linear-referencing.cci:s2f:
iIn file included from es2geography/linear-referencing.hd:,4 :
.In file included from .s2geography/geography.h.:)4 :
_In file included from _../src/s2/s2polygon.hV:A29_:
AIn file included from R/usr/local/clang/include/absl/container/flat_hash_map.hG:S43_:
_In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19        ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2geography/coverings.cc::8012::
45In file included from :s2geography/coverings.h :warning: 6type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from s2geography/geography.h:4  :
801In file included from  | ../src/s2/s2polygon.h : 34C:
oIn file included from n../src/s2/mutable_s2shape_index.hd:i30t:
iIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:(67b:
o/usr/local/clang/include/absl/container/internal/btree_container.ho:l542 :(3*:a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_no  n542n | u l lA BfSuLn_cI)N(TvEoRiNdA*L _aXb(siln_sneurltl_aobri_laistsyi_gunn,k nionwsne)r,t
_      o| r                                            ^_
as/usr/local/clang/include/absl/base/nullability.hs:i289g:n34_:i mnote: pexpanded from macro 'absl_nullability_unknown'l
, &  &289, |  #cdoenfsitn e& ,a bfsall_sneu,l
l      a| b  ^i
li/usr/local/clang/include/absl/container/internal/btree_container.ht:y511_:u52n:k nnote: oexpanded from macro 'ABSL_INTERNAL_X'w
n _  N511u | l l _ u n s p e c i fAiBeSdL
_      I| N                                 ^T
ERNAL_ATTRIBUTE_In file included from Cs2geography/linear-referencing.ccA:P2T:
UIn file included from Rs2geography/linear-referencing.hE:D4_:
BIn file included from Ys2geography/geography.h(:t4h:
iIn file included from s../src/s2/s2polygon.h):)29):
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31\:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 802                                                   ^:
19:/usr/local/clang/include/absl/container/internal/common.h :warning: 31type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
9:   note: 802macro 'ABSL_INTERNAL_IF_true' defined here | 
       31  |  # d e f i n ev oAiBdS*L _aIbNsTlE_RnNuAlLl_aIbFi_ltirtuye_(uinfk_nsoawtni safrige)d;,
       .| .                  ^.
) /usr/local/clang/include/absl/base/nullability.hi:f289_:s34a:t inote: sexpanded from macro 'absl_nullability_unknown'f
ied  
289       | | #        ^d
efine absl_nullabiliIn file included from ts2geography/coverings.ccy:_2u:
nIn file included from ks2geography/coverings.hn:o6w:
nIn file included from  s2geography/geography.h_:N4u:
lIn file included from l../src/s2/s2polygon.h_:u34n:
sIn file included from p../src/s2/mutable_s2shape_index.he:c30i:
fIn file included from i/usr/local/clang/include/absl/container/btree_map.he:d67
:
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                                 ^542
:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2geography/distance.cc542: | 2 :
 In file included from As2geography/distance.hB:S4In file included from L:
s2geography/linear-referencing.cc_In file included from :Is2geography/geography.h2N::
T4In file included from E:
s2geography/linear-referencing.hRIn file included from :N../src/s2/s2polygon.h4A:L:
_34In file included from X:
s2geography/geography.h(In file included from :i../src/s2/mutable_s2shape_index.h4n::
s33In file included from e:
../src/s2/s2polygon.hrIn file included from t:../src/s2/base/commandlineflags.h_29o:r:
21_In file included from :
a/usr/local/clang/include/absl/container/flat_hash_map.hsIn file included from :s/usr/local/clang/include/absl/flags/flag.h43i::
g40In file included from n:
/usr/local/clang/include/absl/container/hash_container_defaults.h,/usr/local/clang/include/absl/flags/commandlineflag.h ::i16319n::
s56In file included from e:r/usr/local/clang/include/absl/container/internal/hash_function_defaults.h twarning: :_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o59
r:
_In file included from   a/usr/local/clang/include/absl/strings/cord.hs163:s | 94 i:
g nb_In file included from oi/usr/local/clang/include/absl/strings/internal/cordz_info.hom:lp31 l:
P,/usr/local/clang/include/absl/synchronization/mutex.ha :r&814s&:e,20F :cr oowarning: mntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](s
atb s  l&814:, |  : sf tCarloisnndgie_,tvi
io      enw| (   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~bvoa
oll  u e543(,* |  a sbt sdl : _:n sot nr niu nl gl *   fau bns cl )_ ( nT o* nt nrauuebls)ll; _
enru      rl| o                  ~~~~~lra
)b;i
/usr/local/clang/include/absl/container/internal/btree_container.hl      :i| t                                                       ^511y
_:u47n:/usr/local/clang/include/absl/base/nullability.hk :nnote: 241oexpanded from macro 'ABSL_INTERNAL_X':w
22n:) ,  note: 
expanded from macro 'absl_nonnull'511      
 | |                      ^ 241
  |  /usr/local/clang/include/absl/base/nullability.h# :d 241e :f 22i :n  e note: A expanded from macro 'absl_nonnull'BaS
bLs  l_241_I | n#NodTneEnfuRiNlnAleL _ _aAbNsolTnT_nnRoIuBlnlUnT
uE      _l| lC                     ^ A
_PNToUnRnEuDl_lB
Y      (| t                     ^
his))) In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43\:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                                              ^~~~19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 814s2geography/distance.cc::422::
 In file included from s2geography/distance.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]4
:
In file included from s2geography/geography.h:4  :
814In file included from  | ../src/s2/s2polygon.h : 34C:
oIn file included from n../src/s2/mutable_s2shape_index.hd:i33t:
iIn file included from o../src/s2/base/commandlineflags.hn:(21b:
oIn file included from o/usr/local/clang/include/absl/flags/flag.hl: 40(:
*/usr/local/clang/include/absl/flags/commandlineflag.ha:b193s:l27_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   193f | u n cv)i(rTt*u aalb svlo_indu lRleaabdi(lviotiyd_*u nakbnsolw_nn)o,n
n      u| l                                         ^l
 d/usr/local/clang/include/absl/base/nullability.hs:t289): 34c:o nnote: sexpanded from macro 'absl_nullability_unknown't
 =   0289; | 
#      d| e                          ^f
ine/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241i | l#idteyf_iunnek naobwsnl _/usr/local/clang/include/absl/container/internal/btree_container.h_nNou:nl545nlu_:luln24 s_:pNeocni nfuwarning: ileldpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]


            | |                        ^                                 ^545

 |              In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from fs2geography/linear-referencing.ha:l4s:
eIn file included from )s2geography/geography.h;:
4      :
| In file included from                        ^../src/s2/s2polygon.h
:29:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h496::439:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hnote: :macro 'ABSL_INTERNAL_X' defined here19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59496:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e94f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31A:
B/usr/local/clang/include/absl/synchronization/mutex.hS:L815_:I16N:T Ewarning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
AL_  X815( | F u n c ,   C a l l e e ,T *K Qaubasll,_ nMuQlulaalb,i lKiVtayl_uuen,k nMoVwanl uaer,g ).;.
.      )|                 ^ 
  /usr/local/clang/include/absl/base/nullability.h :\289
:      34| :        ^ 
note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 | /usr/local/clang/include/absl/container/internal/btree_container.h : 544 : 3 :  bwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
l (*  a544b | s l _AnBoSnLn_uIlNlT EfRuNnAcL)_(XT(*i nasbesrlt__nourl_laasbsiilgint,y _iunnskenrotw_no)r,_
a      s| s             ^i
gn/usr/local/clang/include/absl/base/nullability.h_:i241m:p22l:,  note: &expanded from macro 'absl_nonnull'&
,   c241o | n#sdte f&i,n et raubes,l
_      n| o  ^n
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509 :_52N:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll
        | 509                     ^ | 
      In file included from  s2geography/linear-referencing.cc : 2 :
AIn file included from Bs2geography/linear-referencing.hS:L4_:
IIn file included from Ns2geography/geography.hT:E4R:
NIn file included from A../src/s2/s2polygon.hL:_29A:
TIn file included from T/usr/local/clang/include/absl/container/flat_hash_map.hR:I43B:
UIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hE:_19C:
AIn file included from P/usr/local/clang/include/absl/container/internal/hash_function_defaults.hT:U59R:
EIn file included from D/usr/local/clang/include/absl/strings/cord.h_:B94Y:
(In file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hh:i31s:
)/usr/local/clang/include/absl/synchronization/mutex.h):,830 : 36 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      830  |              b o o l   (\*
a      b| s                                                   ^l
_no/usr/local/clang/include/absl/container/internal/common.hn:n31u:l9l:  fnote: umacro 'ABSL_INTERNAL_IF_true' defined heren
c)(   T31* |  #adbesfli_nneu lAlBaSbLi_lIiNtTyE_RuNnAkLn_oIwFn_)t,r
u      e| (                                   ^i
f_/usr/local/clang/include/absl/base/nullability.hs:a289t:i34s:f inote: eexpanded from macro 'absl_nullability_unknown'd
,   .289. | .#)d eiffi_nsea taibssfli_endu
l      l| a        ^b
ility_unknown _NulIn file included from ls2geography/coverings.cc_:u2n:
sIn file included from ps2geography/coverings.he:c6i:
fIn file included from is2geography/geography.he:d4
:
      In file included from | ../src/s2/s2polygon.h                                 ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSIn file included from Ls2geography/linear-referencing.cc_:I2N:
TIn file included from Es2geography/linear-referencing.hR:N4A:
LIn file included from _s2geography/geography.hX:(4i:
nIn file included from s../src/s2/s2polygon.he:r29t:
_In file included from o/usr/local/clang/include/absl/container/flat_hash_map.hr:_43a:
sIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hi:g19n:
,In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:n59s:
eIn file included from r/usr/local/clang/include/absl/strings/cord.ht:_94o:
rIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.ha:s31s:
i/usr/local/clang/include/absl/synchronization/mutex.hg:n831_:i46m:p lwarning: ,type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
&&,   831c | o n s t   & ,t ytpreunea,m
e       | a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl  :545: | t y p e _ i d e n t i t y < T > : : tfyaples*e )a;b
s      l| _                  ~~~~~~n
ull/usr/local/clang/include/absl/container/internal/btree_container.ha:b509i:l47i:t y_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: note: expanded from macro 'absl_nullability_unknown'expanded from macro 'ABSL_INTERNAL_X'

  289 | #  d509e | f i n e   a b s l _ nAuBlSlLa_bIiNlTiEtRyN_AuLn_kAnToTwRnI B_UNTuEl_lC_AuPnTsUpReEcDi_fBiYe(dt
h      i| s                                 ^)
),                        \
      | In file included from                                               ^~~~s2geography/linear-referencing.cc
:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
544In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h3::43 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/hash_container_defaults.h
:19/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5259::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'ABSL_INTERNAL_X'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31511:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 844 : 10 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S844L | _ I N T E R NTA*L _aAbTsTlR_InBoUnTnEu_lClA PoTbUjReEcDt_,B
Y      (|          ^t
hi/usr/local/clang/include/absl/base/nullability.hs:)241):)22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o\n
n      u| l                                                   ^l
 _/usr/local/clang/include/absl/container/internal/common.hN:o32n:n9u:l lnote: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                      ^
   32 | #define ABSLIn file included from _s2geography/linear-referencing.ccI:N2TE:
RIn file included from Ns2geography/linear-referencing.hA:L4_:
IIn file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.hF:_29f:
aIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hs:e43(:
iIn file included from f/usr/local/clang/include/absl/container/hash_container_defaults.h_:s19a:
tIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:f59i:
eIn file included from d/usr/local/clang/include/absl/strings/cord.h,: 94.:
.In file included from ./usr/local/clang/include/absl/strings/internal/cordz_info.h): 31_:
_/usr/local/clang/include/absl/synchronization/mutex.hV:A845_:A45R:G Swarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_

      |         ^  
845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from In file included from s2geography/coverings.cc../src/s2/s2polygon.h:2:
:In file included from 29s2geography/coverings.h:
:In file included from 6/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43s2geography/geography.h:
:In file included from 4/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19../src/s2/s2polygon.h:
:In file included from 34/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:31/usr/local/clang/include/absl/container/internal/btree_container.h:
:/usr/local/clang/include/absl/synchronization/mutex.h547::85023::16 : warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    547850 |  |              c o n s t   In file included from T s2geography/distance.cc* :  2a :
b In file included from sts2geography/distance.hlr:u_4en:
)oIn file included from ;ns2geography/geography.hn
:u      4l| :
l                      ^In file included from  
../src/s2/s2polygon.ho:b/usr/local/clang/include/absl/container/internal/btree_container.h34j::
e496In file included from c:../src/s2/mutable_s2shape_index.ht9:,:33
 :
      note: In file included from | macro 'ABSL_INTERNAL_X' defined here../src/s2/base/commandlineflags.h               ^
:
21:
  In file included from /usr/local/clang/include/absl/base/nullability.h496/usr/local/clang/include/absl/flags/flag.h: | :241#42:d:
22eIn file included from f:i/usr/local/clang/include/absl/flags/internal/flag.h nnote: :eexpanded from macro 'absl_nonnull'30 
A:
B  /usr/local/clang/include/absl/base/call_once.hS241:L | _52I#:NdT24eE:fR Niwarning: nAtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eL
 _aXb   s(52lF | _usntnodnc:n,: uCaltalol m_liNceoen,<n uKuiQlnlut
a3      2l| _,                     ^t 
>M*Q uaabls,l _KnVoanlnuuel,l  MCVoIn file included from ans2geography/linear-referencing.cclt:ru2oe:
l,In file included from W s2geography/linear-referencing.ho.:r.4.d:
()In file included from  
s2geography/geography.h        :|  4                       ^ :

\In file included from 
../src/s2/s2polygon.h      /usr/local/clang/include/absl/base/nullability.h:| :29        ^241:

:In file included from 22/usr/local/clang/include/absl/container/flat_hash_map.h:: 43:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
  In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | :#59d:
eIn file included from f/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o851n:n45u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non  n851u | l l 
        |                       ^ 
bool (absl::In file included from ts2geography/distance.ccy:p2e:
_In file included from is2geography/distance.hd:e4n:
tIn file included from is2geography/geography.ht:y4<:
TIn file included from >../src/s2/s2polygon.h:::34t:
yIn file included from p../src/s2/mutable_s2shape_index.he::33::
*In file included from  ../src/s2/base/commandlineflags.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/flags/flag.hn:o42n:
nIn file included from u/usr/local/clang/include/absl/flags/internal/flag.hl:l30 :
m/usr/local/clang/include/absl/base/call_once.he:t53h:o22d:) (warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                             ^   
53 | /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h :: 241 546: :22a3:b: s note: warning: lexpanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

:  o241n |   c#546ed_ | ef fl iAaBngSe*L  _aabIbsNslTl_E_nnRoonNnnnuAullLll_  _Xf(Nloaingnn)us;le
lr      
t|       _                     ^| o
                     ^r
_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n ,note:  expanded from macro 'absl_nonnull'i
ns  e241r | t#_doeIn file included from rf_s2geography/linear-referencing.ccia:ns2es:
i In file included from gas2geography/linear-referencing.hnb:s_4li:
_mIn file included from nps2geography/geography.hol:,n 4n&:
u&In file included from ,l../src/s2/s2polygon.hl :c 29_o:
NnIn file included from os/usr/local/clang/include/absl/container/flat_hash_map.hnt:n 43u&:
l,In file included from  l/usr/local/clang/include/absl/container/hash_container_defaults.h
t:      r19| u:
                     ^eIn file included from 
,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
  ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509/usr/local/clang/include/absl/strings/internal/cordz_info.h::5231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'ABSL_INTERNAL_X'855
:34:   warning: 509type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      855  |      e x pAlBiScLi_tI NCToEnRdNiAtLi_oAnT(TcRoInBsUtT Eb_oCoAlP*T UIn file included from aRs2geography/distance.ccEb:sD2l_:
_BIn file included from Yns2geography/distance.h(o:nt4nh:
uiIn file included from lss2geography/geography.h)l: )4c,:
o In file included from n ../src/s2/s2polygon.hd :) 34; :
 
In file included from        ../src/s2/mutable_s2shape_index.h |  :                                 ^ 33
 :
 In file included from /usr/local/clang/include/absl/base/nullability.h ../src/s2/base/commandlineflags.h: :241 21 : :
22 In file included from  :/usr/local/clang/include/absl/flags/flag.h  : 42note:  :
expanded from macro 'absl_nonnull' In file included from 
 /usr/local/clang/include/absl/flags/internal/flag.h\  :
24130       | :
#| /usr/local/clang/include/absl/base/call_once.hd                                                   ^:e
96f:i33n/usr/local/clang/include/absl/container/internal/common.h:e:  31warning: a:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b9
s:l _   nnote: 96macro 'ABSL_INTERNAL_IF_true' defined hereo | n 
n uf   lrl31i  | e_n#Nddo nesntfuidln:l:e
a       tA| Bo                     ^mS
iLc_<IuNiTnEtR3N2A_Lt_>I*F _atbrsule_(niofn_nsualtli sbfaiseed_,i nIn file included from .ts2geography/linear-referencing.cce.:r.2n):
a In file included from lis2geography/linear-referencing.h:f::_4Cs:
oaIn file included from nts2geography/geography.hit:rs4of:
ileIn file included from Wd../src/s2/s2polygon.ho
:r      29d| :
        ^(In file included from 

/usr/local/clang/include/absl/container/flat_hash_map.h      :| 43                                ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2259::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hdIn file included from :es2geography/coverings.cc886f::i231n:
:eIn file included from   s2geography/coverings.hwarning: a:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b6
s:
lIn file included from   _s2geography/geography.h886n: | o4 n :
neuIn file included from xl../src/s2/s2polygon.hpll: i_34cNi:
otnIn file included from  nC../src/s2/mutable_s2shape_index.huol:nld30
i:
      tIn file included from | i/usr/local/clang/include/absl/container/btree_map.h                     ^o:
n67(:
c/usr/local/clang/include/absl/container/internal/btree_container.ho:n546sIn file included from :ts2geography/distance.cc 3:T:2* :
 warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]as2geography/distance.hb
:s4l:
_In file included from ns2geography/geography.ho:n  4n546:
u | In file included from l ../src/s2/s2polygon.hl : A34oB:
bSIn file included from jL../src/s2/mutable_s2shape_index.h)_:
I33      N:
| TIn file included from                               ^E../src/s2/base/commandlineflags.h
R:N21/usr/local/clang/include/absl/base/nullability.hA:
:LIn file included from 241_/usr/local/clang/include/absl/flags/flag.hX::(2242i:n:
s In file included from enote: /usr/local/clang/include/absl/flags/internal/flag.hexpanded from macro 'absl_nonnull'r:
t30  _:
241/usr/local/clang/include/absl/base/call_once.ho | :#r97d_:ea18fs:is iwarning: ngtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]en
 ,a   b 97si | ln _ sneor nt n _u olorln_ ca_ses_Nfiolgnanngu*_l lia
mbp      sl| l,                     ^_ 
&n&o,n ncuolnls tf l&a,g )t;r
u      e| ,                 ^

      | /usr/local/clang/include/absl/base/nullability.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
241:22  :547  | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s lt_rnuoen)nIn file included from ;us2geography/linear-referencing.ccl
:l      2 | :
                  ~~~~~_In file included from N
s2geography/linear-referencing.ho:n4n/usr/local/clang/include/absl/container/internal/btree_container.h:
u:In file included from l509s2geography/geography.hl::
474      ::
|  In file included from                      ^note: ../src/s2/s2polygon.hexpanded from macro 'ABSL_INTERNAL_X'
:
29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:  43509:
 | In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A896L:_31A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUT  E896_ | C A PeTxUpRlEiDc_iBtY (Ctohnidsi)t)i,o n ( c o n sIn file included from  ts2geography/distance.cc  :T 2* :
  In file included from  as2geography/distance.h b :s 4l :
_ In file included from n s2geography/geography.ho :n 4n :
u In file included from l ../src/s2/s2polygon.hl : \34o
:
b      In file included from j| ../src/s2/mutable_s2shape_index.h)                                              ^~~~:

33      :
| In file included from                               ^../src/s2/base/commandlineflags.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/flags/flag.h241::4222:
:In file included from /usr/local/clang/include/absl/container/internal/btree_container.h /usr/local/clang/include/absl/flags/internal/flag.h:note: :546expanded from macro 'absl_nonnull'30:
:
3  :/usr/local/clang/include/absl/base/call_once.h241 : | 111#warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d40e
:f /usr/local/clang/include/absl/container/internal/btree_container.hwarning: i:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n511
e: 52a:  b 111note: sexpanded from macro 'ABSL_INTERNAL_X' | l
v_oni  od511n  | nL uo lwl L   e_v N eo lnC n auAllBllSO
Ln      _c| eI                     ^(N
aTbEsRlN:A:Lo_nAcTeT_RfIlBaUgT*E _aCbAsPlT_UnRoEnDn_uBlYl( tfhliaIn file included from sg)s2geography/linear-referencing.cc,): )2C :
a In file included from  l s2geography/linear-referencing.hl : a 4b :
l In file included from  es2geography/geography.h &: &4  :
f In file included from n ../src/s2/s2polygon.h, :
 29       :
 |  In file included from                                        ^ /usr/local/clang/include/absl/container/flat_hash_map.h 
: 43/usr/local/clang/include/absl/base/nullability.h :
:\In file included from 
241/usr/local/clang/include/absl/container/hash_container_defaults.h      ::| 22                                                   ^19:
:
 In file included from note: /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/common.hexpanded from macro 'absl_nonnull'::
5931  :
:241In file included from 9 | /usr/local/clang/include/absl/strings/cord.h#::d 94enote: :
fmacro 'ABSL_INTERNAL_IF_true' defined hereIn file included from i
/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31    :
a31/usr/local/clang/include/absl/synchronization/mutex.hb | :s#l922d_:ne48of:ni nnwarning: ueltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] l
A B_  SN922oL | n_ n IuslNtlaT
tE      iR| c                     ^N 
bAoLo_lI FG_utarruaen(tiefe_dsEaqtuiaslf(iceodn,s t. .C.o)n diift_isoant*i safbiseld_
n      u| l        ^l
able a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2geography/coverings.cc
:2:
  In file included from 257s2geography/coverings.h | :#6d:
eIn file included from fs2geography/geography.hi:n4e:
 In file included from a../src/s2/s2polygon.hb:s34l:
_In file included from n../src/s2/mutable_s2shape_index.hu:l30l:
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hl:e67 :
_/usr/local/clang/include/absl/container/internal/btree_container.hN:u546l:l3a:b lwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                       ^
  546 |   ABSL_IIn file included from Ns2geography/linear-referencing.ccT:E2R:
NIn file included from As2geography/linear-referencing.hL:_4X:
(In file included from is2geography/geography.hn:s4e:
rIn file included from t../src/s2/s2polygon.h_:o29r:
_In file included from a/usr/local/clang/include/absl/container/flat_hash_map.hs:s43i:
gIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.h,: 19i:
nIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:r59t:
_In file included from o/usr/local/clang/include/absl/strings/cord.hr:_94a:
sIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hi:g31n:
_/usr/local/clang/include/absl/synchronization/mutex.hi:m923p:l48,:  &warning: &type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 co  n923s | t   & ,   t r u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     547  |                         c o n s t   Ctornudei)tIn file included from ;i
s2geography/distance.cco      :n| 2*                  ~~~~~:
 
In file included from as2geography/distance.hb:s/usr/local/clang/include/absl/container/internal/btree_container.h4l::
_511In file included from n:s2geography/geography.hu47:l:4l :
aIn file included from bnote: ../src/s2/s2polygon.hlexpanded from macro 'ABSL_INTERNAL_X':e
34 :
bIn file included from   )../src/s2/mutable_s2shape_index.h511;:
 | 33       :
|                                                 ^ In file included from  
../src/s2/base/commandlineflags.h /usr/local/clang/include/absl/base/nullability.h :: 21 257:
 : In file included from A23/usr/local/clang/include/absl/flags/flag.hB::S 42Lnote: :
expanded from macro 'absl_nullable'_In file included from 
I/usr/local/clang/include/absl/flags/internal/flag.h  N:257T30 | E:
#R/usr/local/clang/include/absl/base/call_once.hdN:eA153fL:i_41nA:eT  Twarning: aRtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bI
sBlU_  nT153uE | l l_ aC bAl PeTC Ua_RlNlEuOlDnlc_aeBbIlYm(etp
hl      i(| ss                      ^)t
d):): a t o m i c < u i n t 3 2 _ t > *   a b s l _ n\o
n      n| u                                              ^~~~l
lIn file included from  s2geography/linear-referencing.ccc:o2n:
tIn file included from rs2geography/linear-referencing.ho:l4,:

In file included from       s2geography/geography.h| :                                        ^4
:
In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h22::43 :
In file included from note: /usr/local/clang/include/absl/container/hash_container_defaults.hexpanded from macro 'absl_nonnull':
19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h241: | 59#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n948o:n10n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
_Non  n948u | l l 
b      o| o                     ^l
 (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 550s2geography/geography.h::244::
 In file included from warning: ../src/s2/s2polygon.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  :55043 | :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :f31a:
l/usr/local/clang/include/absl/synchronization/mutex.hs:e948):;48
:       | warning:                        ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:496  :9489 | :   note: bmacro 'ABSL_INTERNAL_X' defined hereo
ol   (496* | a#bdself_innuel lAaBbSlLe_ IeNvTaElR_N)A(Lc_oXn(sFtu nCco,n dCiatliloene*,  aKbQsula_ln,o nMnQuulall),  =K Vnaullulep,t rM;V
a      l| u                                               ^e
, /usr/local/clang/include/absl/base/nullability.h.:.241.:)22 :   note:  expanded from macro 'absl_nonnull' 
\
        241|  |         ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = In file included from ns2geography/distance.ccu:l2l:
pIn file included from ts2geography/distance.hr:;4
:
      In file included from | s2geography/geography.h        ^:
4:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polygon.h::25734::
23In file included from :../src/s2/mutable_s2shape_index.h :33note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/commandlineflags.h:21  /usr/local/clang/include/absl/container/internal/btree_container.h:
257:In file included from  | 549/usr/local/clang/include/absl/flags/flag.h#::d342e::
f In file included from iwarning: /usr/local/clang/include/absl/flags/internal/flag.hnpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:e
30 :
a/usr/local/clang/include/absl/base/call_once.h  b:549s194l | :_ 31 nA:Bu Slwarning: lLtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a_
bIlNe  T 194E_ | RNiNuAnlLll_iXan(beli ens
ste      dr| :                      ^t:
_aotro_maiscs<iIn file included from ugs2geography/linear-referencing.ccin:,n2t :
3iIn file included from 2ns2geography/linear-referencing.h_s:te4>r:
*tIn file included from _ s2geography/geography.hoa:br4s_:
laIn file included from s_../src/s2/s2polygon.hsn:oi29ng:
nnIn file included from u_/usr/local/clang/include/absl/container/flat_hash_map.hilm:lp43 l:
C,In file included from o /usr/local/clang/include/absl/container/hash_container_defaults.hn&:t&19r,:
o In file included from l&/usr/local/clang/include/absl/container/internal/hash_function_defaults.hW&:,o 59rf:
adlIn file included from s(e
/usr/local/clang/include/absl/strings/cord.h,      
:|       94                              ^| :

  ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::/usr/local/clang/include/absl/container/internal/btree_container.h31241::
:/usr/local/clang/include/absl/synchronization/mutex.h50922:::95452 ::note: 52expanded from macro 'absl_nonnull' :
note:    expanded from macro 'ABSL_INTERNAL_X'241warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#  d509  e | 954f  | i  n e s t aa bts i lc_  n bo onoAnlBu lCSla Ll__lNIVoNonTniEudRlPNltA
rL      F_| u                     ^An
cTtTiRoInB(In file included from Ucs2geography/distance.ccToEn_:Cs2At:
P In file included from TCUs2geography/distance.hRoE:nD4d_:
iBIn file included from Yts2geography/geography.h(i:ot4nh:
*iIn file included from s )../src/s2/s2polygon.h)a:b,34 s:
 lIn file included from  _../src/s2/mutable_s2shape_index.h n: o 33n :
n In file included from u ../src/s2/base/commandlineflags.hl :l 21  :
c In file included from ) /usr/local/clang/include/absl/flags/flag.h; :
 42        :
|  In file included from                                                    ^ /usr/local/clang/include/absl/flags/internal/flag.h
 : 30 /usr/local/clang/include/absl/base/nullability.h:
 /usr/local/clang/include/absl/base/call_once.h\:
:241      195:| :22                                                   ^16:
:  note: /usr/local/clang/include/absl/container/internal/common.hwarning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

32  :241  9 | 195#: | d  e fnote:  imacro 'ABSL_INTERNAL_IF_false' defined here noen
 cae   b_s32fll | _a#ngod*n enafublislln __en NoAonnBnnSuuLllll_ 
fI      lN| a                     ^Tg
E)R N{A
L      _| I               ^F
_f/usr/local/clang/include/absl/base/nullability.ha:l241s:e22In file included from (:s2geography/linear-referencing.cci :fnote: 2expanded from macro 'absl_nonnull'_:

sIn file included from   as2geography/linear-referencing.h241t: | i4#s:
dfIn file included from eis2geography/geography.hfe:id4n,:
e In file included from  .../src/s2/s2polygon.ha.:b.29)s:
 l_In file included from __/usr/local/clang/include/absl/container/flat_hash_map.hnV:Ao43_n:
nAIn file included from Ru/usr/local/clang/include/absl/container/hash_container_defaults.hGl:lS19 _:
__In file included from N
/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho      :n| 59        ^n:

uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
94      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52In file included from :s2geography/coverings.cc :warning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from s2geography/coverings.h:6:
  In file included from 956s2geography/geography.h | : 4 :
sIn file included from t../src/s2/s2polygon.ha:t34i:
cIn file included from  ../src/s2/mutable_s2shape_index.hb:o30o:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hC:a67s:
t/usr/local/clang/include/absl/container/internal/btree_container.hA:n549d:CIn file included from 3as2geography/distance.ccl::l 2Fwarning: :
upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from n
s2geography/distance.hc:t4  i:
o549In file included from n | s2geography/geography.h (:c 4oA:
BnSIn file included from Ls../src/s2/s2polygon.ht_:I N34TC:
oEIn file included from nR../src/s2/mutable_s2shape_index.hNdA:iL33_tX:
(iiIn file included from on../src/s2/base/commandlineflags.hsne:r*21 t:
_aIn file included from bo/usr/local/clang/include/absl/flags/flag.hrs:_l42_a:
snsIn file included from oi/usr/local/clang/include/absl/flags/internal/flag.hgn:nn,30u :
i/usr/local/clang/include/absl/base/call_once.hln:sl200e r:ct40_)o:;r 
_warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      s
s| i                                                   ^  g
200n | _/usr/local/clang/include/absl/base/nullability.hivm:op241il:d,22  :L& o&note: ,wexpanded from macro 'absl_nonnull' L
e&v  &e241,l | C #adlfelafOlinsncee,e 
(a      ab| b  ^ss
ll_:/usr/local/clang/include/absl/container/internal/btree_container.hn::oon511nnc:uel52_lf: l_ aNnote: goexpanded from macro 'ABSL_INTERNAL_X'*n 
naubl  sll511
_ |        n| o                      ^n 
n u l l   f l aAgB,S LC_aIIn file included from lNs2geography/linear-referencing.cclT:aE2bR:
lNIn file included from eAs2geography/linear-referencing.h&L:&_4 A:
fTIn file included from nTs2geography/geography.h,R:
I4      B:
| UIn file included from                                        ^T../src/s2/s2polygon.hE
_:C29/usr/local/clang/include/absl/base/nullability.hA:
:PIn file included from 241T/usr/local/clang/include/absl/container/flat_hash_map.hU:R:22E43D::
_ In file included from Bnote: /usr/local/clang/include/absl/container/hash_container_defaults.hYexpanded from macro 'absl_nonnull':(
t19  h:
241iIn file included from  | s/usr/local/clang/include/absl/container/internal/hash_function_defaults.h#):d)59e):
 fIn file included from  i /usr/local/clang/include/absl/strings/cord.hn :e 94  :
a In file included from b /usr/local/clang/include/absl/strings/internal/cordz_info.hs :l 31_ :
n /usr/local/clang/include/absl/synchronization/mutex.ho :n 958n :u 50l :l    warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_ 
N o n   n\958
u | l       l | 
s                                                   ^      t
| a                     ^/usr/local/clang/include/absl/container/internal/common.ht
:i32c: 9b:o onote: lmacro 'ABSL_INTERNAL_IF_false' defined here 
Cas   t32A | n#ddCeaflilnMee tAhBoSdL(_cIoNnTsEtR NCAoLn_dIiFt_ifoanl*s ea(bisfl__snaotninsuflile dc,) ;.
.      .| )                                                 ^ 
__/usr/local/clang/include/absl/base/nullability.hV:A241_:A22R:G Snote: _expanded from macro 'absl_nonnull'_

        | 241        ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2geography/coverings.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::231:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2geography/coverings.h::9616::
34In file included from :s2geography/geography.h :warning: 4type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2polygon.h:34  :
961In file included from  | ../src/s2/mutable_s2shape_index.h : 30s:
tIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:i67c:
 /usr/local/clang/include/absl/container/internal/btree_container.hb:o551o:l79 :C awarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
ByRe  f551( | c o nAsBtS LT_*I NaTERNbAsLl__Xn(oinnnsuelrlt _soerl_fa)s s{i
g      n| ,                                 ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e241r:t22_:o rnote: _expanded from macro 'absl_nonnull'a
ss  i241g | n#_diemfpiln,e  &a&b,s l&_&n,o nfnaullsle ,_ Ntornuneu)l;l

            | |                                                                               ^                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(FuIn file included from ns2geography/linear-referencing.ccc:,2 :
CIn file included from as2geography/linear-referencing.hl:l4e:
eIn file included from ,s2geography/geography.h :K4Q:
uIn file included from a../src/s2/s2polygon.hl:,29 :
MIn file included from Q/usr/local/clang/include/absl/container/flat_hash_map.hu:a43l:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hK:V19a:
lIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:,59 :
MIn file included from V/usr/local/clang/include/absl/strings/cord.ha:l94u:
eIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :.31.:
./usr/local/clang/include/absl/synchronization/mutex.h): 975 : 31 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|         ^
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::55194::
3In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :warning: 31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/synchronization/mutex.h:979:43  :551  | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
ABSL  _979I | N T EsRtNaAtLi_cX (bionosle rAtl_woary_saTsrsuieg(nc,o nisnts eCrotn_doirt_iaosns*i ganb_silm_pnlu,l l&a&b,l e&)& ,{  fraeltsuer,n  ttrruuee);; 
}      
|         ^| 
                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/base/nullability.h509::25752::23 :note:  expanded from macro 'ABSL_INTERNAL_X'note: 
expanded from macro 'absl_nullable'
    257509 |  | # d e f i n e   a b sAlB_SnLu_lIlNaTbElReN A_LN_uAlTlTaRbIlBeU
T      E| _                      ^C
APTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assigIn file included from ns2geography/linear-referencing.cc_:i2m:
pIn file included from ls2geography/linear-referencing.h,: 4&:
&In file included from ,s2geography/geography.h: 4&:
&In file included from ,../src/s2/s2polygon.h :f29a:
lIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.he:,43 :
tIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.hu:e19):
;In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59  ^:

In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/btree_container.h::94511:
:In file included from 52/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31note: :
expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/synchronization/mutex.h  :5111033 | : 20 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1033A | B S Lv_oIiNdT EWRaNiAtL(_MAuTtTeRxI*B UaTbEs_lC_AnPoTnUnRuElDl_ BmYu()t h{i
s      )| )                   ^)
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n31u:l9l:  _note: Nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l | 
#      d| e                     ^
fine ABSL_INTERNAL_IF_trueIn file included from (s2geography/linear-referencing.cci:f2_:
sIn file included from as2geography/linear-referencing.ht:i4s:
fIn file included from is2geography/geography.he:d4,:
 In file included from .../src/s2/s2polygon.h.:.29):
 In file included from i/usr/local/clang/include/absl/container/flat_hash_map.hf:_43s:
aIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.hi:s19f:
iIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hd:
59      :
| In file included from         ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |  In file included from  s2geography/coverings.ccb:o2o:
lIn file included from  s2geography/coverings.hW:a6i:
tIn file included from Ws2geography/geography.hi:t4h:
TIn file included from i../src/s2/s2polygon.hm:e34o:
uIn file included from t../src/s2/mutable_s2shape_index.h(:M30u:
tIn file included from e/usr/local/clang/include/absl/container/btree_map.hx:*67 :
a/usr/local/clang/include/absl/container/internal/btree_container.hb:s551l:_3n:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll mu,   551a | b s lA:B:SDLu_rIaNtTiEoRnN AtLi_mXe(oiunts)e r{t
_      o| r                              ^_
as/usr/local/clang/include/absl/base/nullability.hs:i241g:n22,:  inote: nexpanded from macro 'absl_nonnull's
er  t241_ | o#rd_eafsisnieg na_bismlp_ln,o n&n&u,l l& &_,N ofnanluslel,
       t| r                     ^u
e);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |     In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.hA:B4S:
LIn file included from _s2geography/geography.hI:N4T:
EIn file included from R../src/s2/s2polygon.hN:A29L:
_In file included from A/usr/local/clang/include/absl/container/flat_hash_map.hT:T43R:
IIn file included from B/usr/local/clang/include/absl/container/hash_container_defaults.hU:T19E:
_In file included from C/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:P59T:
UIn file included from R/usr/local/clang/include/absl/strings/cord.hE:D94_:
BIn file included from Y/usr/local/clang/include/absl/strings/internal/cordz_info.h(:t31h:
i/usr/local/clang/include/absl/synchronization/mutex.hs:)1069):)32 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1069  |      b o o l   W a i t W i\t
h      D| e                                              ^~~~a
dline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 552/usr/local/clang/include/absl/strings/cord.h::7994::
 In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:  1088552: | 35 :  Awarning: Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S
L_I N1088T | E R NvAoLi_dX (EinnasbelretD_eobru_gaLsosgi(gcno,n sitn scehratr_*o ra_bassls_ingunl_liambplle,  n&a&m,e )&;&
,       | t                                  ^r
ue/usr/local/clang/include/absl/base/nullability.h,: 257f:a23l:s enote: )expanded from macro 'absl_nullable';

        | 257                                                                              ^ | 
#d/usr/local/clang/include/absl/container/internal/btree_container.he:f496i:n9e:  anote: bmacro 'ABSL_INTERNAL_X' defined heres
l_n  u496l | l#adbelfei n_eN uAlBlSaLb_lIeN
T      E| R                      ^N
AL_X(Func, Callee, KIn file included from Qs2geography/linear-referencing.ccu:a2l:
,In file included from  s2geography/linear-referencing.hM:Q4u:
aIn file included from ls2geography/geography.h,: 4K:
VIn file included from a../src/s2/s2polygon.hl:u29e:
,In file included from  /usr/local/clang/include/absl/container/flat_hash_map.hM:V43a:
lIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.he:,19 :
.In file included from ./usr/local/clang/include/absl/container/internal/hash_function_defaults.h.:)59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94\:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :        ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:/usr/local/clang/include/absl/container/internal/btree_container.h4::
552In file included from :s2geography/geography.h3::4 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2polygon.h
:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  :55243 | :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hA:B19S:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hI:N59T:
EIn file included from R/usr/local/clang/include/absl/strings/cord.hN:A94L:
_In file included from X/usr/local/clang/include/absl/strings/internal/cordz_info.h(:i31n:
s/usr/local/clang/include/absl/synchronization/mutex.he:r1093t:_46o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sig n1093, |   i nvsoeirdt _Roerm_oavses(ibgans_ei_mipnlt,e r&n&a,l :&:&P,e rtTrhuree,a dSfyanlcshe*) ;a
b      s| l  ^_
no/usr/local/clang/include/absl/container/internal/btree_container.hn:n509u:l52l:  snote: )expanded from macro 'ABSL_INTERNAL_X';

      |                                              ^  
509 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impIn file included from ls2geography/linear-referencing.cc,: 2&:
&In file included from ,s2geography/linear-referencing.h :&4&:
,In file included from  s2geography/geography.ht:r4u:
eIn file included from ,../src/s2/s2polygon.h :f29a:
lIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.he:)43;:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/container/internal/btree_container.h59::
509In file included from :/usr/local/clang/include/absl/strings/cord.h47::94 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h509: | 1109 : 34 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
    A1109B | S L _eIxNpTlEiRcNiAtL _MAuTtTeRxILBoUcTkEM_aCyAbPeT(UMRuEtDe_xB*Y (atbhsils_)n)u,l l a b l e   m u ) 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable'\

      |                                                 ^~~~257
 | #define/usr/local/clang/include/absl/container/internal/btree_container.h :a552b:s3l:_ nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l/usr/local/clang/include/absl/container/internal/btree_container.ha:b511l:e52 :_ Nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
lab  l511e | 
        |                        ^ 
      ABSL_INTERNAL_ATTRIBUTE_CAIn file included from Ps2geography/linear-referencing.ccT:U2R:
EIn file included from Ds2geography/linear-referencing.h_:B4Y:
(In file included from ts2geography/geography.hh:i4s:
)In file included from )../src/s2/s2polygon.h): 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h\:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                                   ^:
1117:34/usr/local/clang/include/absl/container/internal/common.h:: 32warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]9
: note: macro 'ABSL_INTERNAL_IF_false' defined here 
1117 |      32e | x#pdleifciinte  MAuBtSeLx_LIoNcTkEMRaNyAbLe_(IMFu_tfeaxl*s ea(bisfl__snautlilsafbileed ,m u.,. .c)o n_s_tV AC_oAnRdGiSt_i_o
n      &|          ^c
ond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from  s2geography/coverings.cc1132: | 2 :
 In file included from Ms2geography/coverings.hu:t6e:
xIn file included from *s2geography/geography.h :a4b:
sIn file included from l../src/s2/s2polygon.h_:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.ha:b30l:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.hc:o67n:
s/usr/local/clang/include/absl/container/internal/btree_container.ht: 553m:u78_:; 
warning:       passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
         ^
/usr/local/clang/include/absl/base/nullability.h  :553257 | : 23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nXe( ianbsselr_tn_uolrl_aabslsei g_nN,u lilnasbelret
_      o| r                      ^_
assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146/usr/local/clang/include/absl/container/internal/btree_container.h | : 553 : 3 :   warning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]h
is))   553A | B S LA_BESXLC_LIUNSTIEVREN_ALLO_CXK(_iFnUsNeCrTtI_OoNr(_maus)s
i      g| n      ^~~~,
 insert_or_assign_impl, &&, &&, true, /usr/local/clang/include/absl/synchronization/mutex.ht:r1153u:e39):; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  ^

/usr/local/clang/include/absl/container/internal/btree_container.h :1153509 | : 52 :e xnote: pexpanded from macro 'ABSL_INTERNAL_X'l
ici  t509  | R e l e a s a b l e MAuBtSeLx_LIoNcTkE(RMNuAtLe_xA*T TaRbIsBlU_TnEo_nCnAuPlTlU RmEuD)_
B      Y| (                                      ^t
his/usr/local/clang/include/absl/base/nullability.h):)241,: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u                                                   ^l
l /usr/local/clang/include/absl/container/internal/common.h_:N31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here

      |                      ^   
31 | #define ABSL_INTERNAL_IF_true(if_satiIn file included from ss2geography/linear-referencing.ccf:i2e:
dIn file included from ,s2geography/linear-referencing.h :.4.:
.In file included from )s2geography/geography.h :i4f:
_In file included from s../src/s2/s2polygon.ha:t29i:
sIn file included from f/usr/local/clang/include/absl/container/flat_hash_map.hi:e43d:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :        ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2geography/coverings.cc
:2:
In file included from s2geography/coverings.h: 61158:
 | In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.hM:u34t:
eIn file included from x../src/s2/mutable_s2shape_index.h&: 30m:
uIn file included from  /usr/local/clang/include/absl/container/btree_map.hA:B67S:
L/usr/local/clang/include/absl/container/internal/btree_container.h_:I553N:T3E:R Nwarning: A'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
_ATTR  I553B | U T EA_BCSALP_TIUNRTEEDR_NBAYL(_tXh(iisn)s,e
r      t| _                                                    ^~~~o
r_assign, insert_or_assign_impl, &&, &/usr/local/clang/include/absl/synchronization/mutex.h&:,1166 :t39r:u ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
true )1166; | 
        | e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~x
pli/usr/local/clang/include/absl/container/internal/btree_container.hc:i509t: 47R:e lnote: eexpanded from macro 'ABSL_INTERNAL_X'a
sab  l509e | M u t e x L o c k ( MAuBtSeLx_*I NaTbEsRlN_AnLo_nAnTuTlRlI BmUuT,E _cCoAnPsTtU RCEoDn_dBiYt(itohni&s )c)o,n d ) 
        |                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d\e
f      i| n                                              ^~~~e
 absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n553u:l3l:  _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:
52      :|                       ^
note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thIn file included from is2geography/linear-referencing.ccs:)2):
)In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
\In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59                                                   ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/common.h94::
31In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h9::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hmacro 'ABSL_INTERNAL_IF_true' defined here:
1179:10:    31warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
de f1179i | n e  MAuBtSeLx_*I NaTbEsRlN_AnLu_lIlFa_btlreu em(ui_f;_
s      a| t         ^i
sfi/usr/local/clang/include/absl/base/nullability.he:d257,: 23.:. .note: )expanded from macro 'absl_nullable' 
if  _257s | a#tdiesffiineed 
a      b| s        ^l
_nullable _NuIn file included from ls2geography/coverings.ccl:a2b:
lIn file included from es2geography/coverings.h
:      6| :
                      ^In file included from 
s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 555s2geography/geography.h::34::
 In file included from ../src/s2/s2polygon.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43  :
555In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h : 19A:
BIn file included from S/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:_59I:
NIn file included from T/usr/local/clang/include/absl/strings/cord.hE:R94N:
AIn file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:X31(:
i/usr/local/clang/include/absl/synchronization/mutex.hn:s1212e:r52t:_ owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
assi g1212n | ,b oionls eCrotn_doirt_iaosns:i:gCna_shtiAnntd_CiamlpllM,e tchoonds(tc o&n,s
t       | C  ^o
nd/usr/local/clang/include/absl/container/internal/btree_container.hi:t509i:o52n:*  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n509o | n n u l l   c )   { 
A      B| S                                                   ^L
_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Aexpanded from macro 'absl_nonnull'T
TR  I241B | U#TdEe_fCiAnPeT UaRbEsDl__BnYo(ntnhuilsl) )_,N o n n u l l 
        |                       ^ 
             \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisIn file included from fs2geography/linear-referencing.cci:e2d:
,In file included from  s2geography/linear-referencing.h.:.4.:
)In file included from  s2geography/geography.h_:_4V:
AIn file included from _../src/s2/s2polygon.hA:R29G:
SIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.h_:
43      :
| In file included from         ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hs2geography/coverings.cc::312:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2geography/coverings.h1221::654:
:In file included from  s2geography/geography.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]4
:
In file included from ../src/s2/s2polygon.h:34 :
1221In file included from  | ../src/s2/mutable_s2shape_index.hb:o30o:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hC:o67n:
d/usr/local/clang/include/absl/container/internal/btree_container.hi:t555i:o3n:: :warning: Cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
stA  n555d | C a lAlBFSuLn_cItNiToEnR(NcAoLn_sXt( iCnosnedritt_ioorn_*a sasbisl_nognnn,u liln sce)r t{_
o      r| _                                                     ^a
ssi/usr/local/clang/include/absl/base/nullability.hg:n241_:h22i:n tnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #cdoenfsitn e& ,a
b      s| l  ^_
no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:  _note: Nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l511l | 
        |                       ^ 
      ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9:In file included from  s2geography/linear-referencing.ccnote: :macro 'ABSL_INTERNAL_IF_false' defined here2
:
In file included from s2geography/linear-referencing.h   :324 | :
#In file included from ds2geography/geography.he:f4i:
nIn file included from e../src/s2/s2polygon.h :A29In file included from B:
s2geography/geography.ccSIn file included from :L/usr/local/clang/include/absl/container/flat_hash_map.h_2:I:
43NIn file included from :
Ts2geography/geography.hIn file included from E:/usr/local/clang/include/absl/container/hash_container_defaults.hR4:N:
19AIn file included from L:
_../src/s2/s2polygon.hIn file included from I:/usr/local/clang/include/absl/container/internal/hash_function_defaults.hF34:_:
59fIn file included from a:
l../src/s2/mutable_s2shape_index.hIn file included from s:e/usr/local/clang/include/absl/strings/cord.h41(:i:
f94In file included from _:
s../src/s2/s2cell_id.hIn file included from a:t/usr/local/clang/include/absl/strings/internal/cordz_info.h43i::
s31In file included from f:
i../src/s2/s1angle.h/usr/local/clang/include/absl/synchronization/mutex.he:d:,28 1230:
.:.In file included from .12../src/s2/s2point.h)::  27_warning: :
_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from V
A../src/s2/s2coder.h_: A231230R:
 | GIn file included from  S/usr/local/clang/include/absl/status/status.h_ :_ 67 
:
b      /usr/local/clang/include/absl/status/internal/status_internal.ho| :o        ^119l
: 14(:* awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o119n | n u lSlt aftuunscR)e(pT**  aabbssll__nnounlnlualbli lCiltoyn_eu(n
k      n| o             ^w
n),
/usr/local/clang/include/absl/base/nullability.h      :| 241           ^:
22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2geography/geography.cc:
:In file included from 2/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31s2geography/geography.h:
:/usr/local/clang/include/absl/synchronization/mutex.h4::
1230In file included from :../src/s2/s2polygon.h34::34 :
In file included from warning: ../src/s2/mutable_s2shape_index.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
41:
In file included from ../src/s2/s2cell_id.h :123043 | :
 In file included from  ../src/s2/s1angle.h :In file included from  28s2geography/coverings.ccb:
o:In file included from o2../src/s2/s2point.hl:
: In file included from 27(s2geography/coverings.h:
*:In file included from a6../src/s2/s2coder.hb:
:sIn file included from 23ls2geography/geography.h:
_:In file included from n4/usr/local/clang/include/absl/status/status.ho:
:nIn file included from 67n../src/s2/s2polygon.h:
u:/usr/local/clang/include/absl/status/internal/status_internal.hl34:l:
125 In file included from :f../src/s2/mutable_s2shape_index.h14u::n30 c:
warning: )In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](/usr/local/clang/include/absl/container/btree_map.h
T:*67   :
125a/usr/local/clang/include/absl/container/internal/btree_container.h | b: s 558lS_:tna3utl:uls awarning: Rbpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]eip
l*i ta  yb558_sul | n_k nn oonAwnBnu)Sl,lL
 _      CI| lN                                 ^oT
nEe/usr/local/clang/include/absl/base/nullability.hRA:nN289dA:UL34n_:rX e(note: fexpanded from macro 'absl_nullability_unknown'i(

n      s  | e289             ^r | 
t#_d/usr/local/clang/include/absl/base/nullability.heo:fr241_i:na22es: s ianote: bexpanded from macro 'absl_nonnull'gsn
l,_  n 241ui | ln#lsdaeebrfiitlni_et oya_rbu_snalk_snnsooiwnngn nu__lNlhu il_lnNt_oun_ninsmupleplc
il      ,f|  i                     ^ec
do
n      s| t                                 ^ 
&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'In file included from 
s2geography/linear-referencing.cc  :509In file included from 2 | s2geography/geography.cc:
 :In file included from  2s2geography/linear-referencing.h :
: In file included from 4 s2geography/geography.h:
 :In file included from  4s2geography/geography.h :
: In file included from  4../src/s2/s2polygon.hA:
B:SIn file included from 34L../src/s2/s2polygon.h:
_:In file included from I29../src/s2/mutable_s2shape_index.hN:
:TIn file included from E41R/usr/local/clang/include/absl/container/flat_hash_map.hN:
:AIn file included from L43_../src/s2/s2cell_id.hA:
T:In file included from T43/usr/local/clang/include/absl/container/hash_container_defaults.h:
:RIn file included from 19I../src/s2/s1angle.h:
B:In file included from U28T/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:
_:In file included from C59A../src/s2/s2point.hP:
T:In file included from U27/usr/local/clang/include/absl/strings/cord.hR:
:EIn file included from 94D../src/s2/s2coder.h:
_:In file included from B23/usr/local/clang/include/absl/strings/internal/cordz_info.hY:
:(In file included from 31t/usr/local/clang/include/absl/status/status.h:
h:/usr/local/clang/include/absl/synchronization/mutex.hi67:s:
1231)/usr/local/clang/include/absl/status/internal/status_internal.h:):8,128 ::  14 :warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  1231    |  128   |         S Tt* a t aub ss Rle _ p n*u  l al abb\si
ll      _in| toy                                                   ^n_n
uun/usr/local/clang/include/absl/container/internal/common.hlkl:n o32Cwl:no 9nae:rAg n)dnote: 
macro 'ABSL_INTERNAL_IF_false' defined hereU      n
| r       ^e   
f32( | /usr/local/clang/include/absl/base/nullability.h)#:d e289cf:oi34nn:se t ;note: A
expanded from macro 'absl_nullability_unknown'B      
S| L  _             ^289I
 | N#/usr/local/clang/include/absl/base/nullability.hdT:eE241fR:iN22nA:eL _ note: Iaexpanded from macro 'absl_nonnull'bF
s_l  _f241na | u#lldlseafebii(nleii tfay_b_ssualtn_kinnosonwfnnui l_elNd u_,lNl o_n.un.n.usl)pl e
c_      i_| f                     ^Vi
Ae_dA
R      G| S                                 ^_
_
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, inserIn file included from ts2geography/linear-referencing.cc_:o2r:
_In file included from as2geography/linear-referencing.hs:s4i:
gIn file included from ns2geography/geography.h_:h4i:
nIn file included from t../src/s2/s2polygon.h_:i29m:
pIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h,: 43c:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hs:t19 :
&In file included from ,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
  ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h94::
511In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h52::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_INTERNAL_X':
1241:12:   511warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    1241  |          bAoBoSlL _(I*NaTbEsRlN_AnLo_nAnTuTlRlI BfUuTnEc_)C(ATP*T UaRbEsDl__BnYu(ltlhaibsi)l)i)t y _ u n k n o w n ) , 
        |             ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :\ 
note:       expanded from macro 'absl_nonnull'| 
                                                   ^
  241/usr/local/clang/include/absl/container/internal/common.h | :#31d:e9f:i nnote: emacro 'ABSL_INTERNAL_IF_true' defined here 
abs   l31_ | n#odnenfuilnle  _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_IF_tIn file included from rs2geography/linear-referencing.ccu:e2(:
iIn file included from fs2geography/linear-referencing.h_:s4a:
tIn file included from is2geography/geography.hs:f4i:
eIn file included from d../src/s2/s2polygon.h,: 29.:
.In file included from ./usr/local/clang/include/absl/container/flat_hash_map.h): 43i:
fIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hs:a19t:
iIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hf:i59e:
dIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94        ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 In file included from 1241s2geography/coverings.cc | : 2 :
 In file included from  s2geography/coverings.hb:o6o:
lIn file included from  s2geography/geography.h(:*4a:
bIn file included from s../src/s2/s2polygon.hl:_34n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hf:u67n:
c/usr/local/clang/include/absl/container/internal/btree_container.h):(558T:*3 :a bwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
_nulla  b558i | l i tAyB_SuLn_kInNoTwEnR)N,A
L      _| X                                 ^(
in/usr/local/clang/include/absl/base/nullability.hs:e289r:t34_:o rnote: _expanded from macro 'absl_nullability_unknown'a
ss  i289g | n#,d eifnisneer ta_bosrl__ansuslilganb_ihliintty__iumpl, nckonnoswtn  &_,N
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
un  s559p | e c i f i e d 
        |                                   ^ 
       const &, false, true,
      | In file included from                   ~~~~~~~~~~~~~~~~~~~~~s2geography/linear-referencing.cc
:2:
  In file included from 560s2geography/linear-referencing.h | : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from c/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19s:
tIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:t59e:
rIn file included from a/usr/local/clang/include/absl/strings/cord.ht:o94r:
(In file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31t:
)/usr/local/clang/include/absl/synchronization/mutex.h :A1242B:S44L:_ Iwarning: Ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T
ERN A1242L | _ C O M MtAy)p;e
n      a| m                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
 ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l511:::47t:y pnote: eexpanded from macro 'ABSL_INTERNAL_X'_
ide  n511t | i t y < T > : : t y pAeB*S La_bIsNlT_EnRuNlAlLa_bAiTlTiRtIyB_UuTnEk_nCoAwPnT
U      R| E                                           ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(289t:h34i:s )note: )expanded from macro 'absl_nullability_unknown')
     289  |  # d e f i n e   a b s l _ n u l l a b i\l
i      t| y                                              ^~~~_
unknown _Null_unspecified
      |                                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity/usr/local/clang/include/absl/container/internal/btree_container.h<:T561>::3::t ywarning: ppassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
::*   a561b | s l _AnBoSnLn_uIlNlT EmReNtAhLo_dX)((i)n)s
e      r| t                                          ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: ,expanded from macro 'absl_nonnull' 
in  s241e | r#td_eofri_naes saibgsnl__hnionntn_uilmlp l_,N ocnonnusltl 
&      ,| 
                     ^      
|   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),     In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
\In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h      :| 43                                                   ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:/usr/local/clang/include/absl/container/internal/common.h19::
31In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h9::59 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hmacro 'ABSL_INTERNAL_IF_true' defined here:
94:
In file included from    /usr/local/clang/include/absl/strings/internal/cordz_info.h31: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f1259i:n14e:  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_I N1259T | E R N A Lc_oInFs_tt rTu*e (aibfs_ls_antoinsnfuileld ,o b.j.e.c)t if_s,a
t      i| s             ^f
ie/usr/local/clang/include/absl/base/nullability.hd:
241      :| 22        ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2geography/coverings.ccl:_2n:
oIn file included from ns2geography/coverings.hn:u6l:
lIn file included from  s2geography/geography.h_:N4o:
nIn file included from n../src/s2/s2polygon.hu:l34l:

In file included from       ../src/s2/mutable_s2shape_index.h| :                     ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   In file included from As2geography/linear-referencing.ccB:S2L:
_In file included from Is2geography/linear-referencing.hN:T4E:
RIn file included from Ns2geography/geography.hA:L4_:
XIn file included from (../src/s2/s2polygon.hi:n29s:
eIn file included from r/usr/local/clang/include/absl/container/flat_hash_map.ht:_43o:
rIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.ha:s19s:
iIn file included from g/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:,59 :
iIn file included from n/usr/local/clang/include/absl/strings/cord.hs:e94r:
tIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31_:
a/usr/local/clang/include/absl/synchronization/mutex.hs:s1260i:g43n:_ hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
t_i m1260p | l ,   c obnosotl  &(,a
b      s| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
:t  y562p | e _ i d e n t i t y < T > : : t y p ec:o:n*s ta b&s,l _tnrounen,u lfla lmseet,h
o      d| )                  ~~~~~~~~~~~~~~~~~~~~~(
)
        | 563                                          ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d ecfoinnset _aibtselr_antoonrn(uhliln t_)N oAnBnSuLl_lI
N      T| E                     ^R
NAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CIn file included from As2geography/linear-referencing.ccP:T2U:
RIn file included from Es2geography/linear-referencing.hD:_4B:
YIn file included from (s2geography/geography.ht:h4i:
sIn file included from )../src/s2/s2polygon.h):,29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :\31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                                              ^~~~:
1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:561: 31279: |  vwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
d/usr/local/clang/include/absl/container/internal/btree_container.h :R511e:g52i:s tnote: eexpanded from macro 'ABSL_INTERNAL_X'r
Mut  e511x | P r o f i l e r ( v oAiBdS L(_*IaNbTsElR_NnAoLn_nAuTlTlR IfBnU)T(Ei_nCtA6P4T_UtR EwDa_iBtY_(ctyhcilse)s)))) ; 
        |                                    ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d\e
f      i| n                                                   ^e
 a/usr/local/clang/include/absl/container/internal/common.hb:s32l:_9n:o nnote: nmacro 'ABSL_INTERNAL_IF_false' defined hereu
ll    _32N | o#ndneufliln
e       | A                     ^B
SL_INTERNAL_IF_false(if_satisfIn file included from is2geography/linear-referencing.cce:d2,:
 In file included from .s2geography/linear-referencing.h.:.4):
 In file included from _s2geography/geography.h_:V4A:
_In file included from A../src/s2/s2polygon.hR:G29S:
_In file included from _/usr/local/clang/include/absl/container/flat_hash_map.h
:      43| :
        ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* aIn file included from bs2geography/coverings.ccs:l2_:
nIn file included from os2geography/coverings.hn:n6u:
lIn file included from ls2geography/geography.h :m4s:
gIn file included from ,../src/s2/s2polygon.h
:      34| :
                                                             ^In file included from 
../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/base/nullability.h30::
241In file included from :/usr/local/clang/include/absl/container/btree_map.h22::67 :
note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
564:  3241: |  #warning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
fine   564a | b s lA_In file included from Bns2geography/distance.ccoS:nL2n_:
uIIn file included from lNs2geography/distance.hlT: E4_R:
NNIn file included from oAs2geography/geography.hnL:n_4uX:
l(lIn file included from i
n../src/s2/s2polygon.h      s:e| 34                     ^r:

tIn file included from _../src/s2/mutable_s2shape_index.ho:r33_:
In file included from aIn file included from s2geography/linear-referencing.ccs../src/s2/base/commandlineflags.h:s:2i21g:
:
nIn file included from ,/usr/local/clang/include/absl/flags/flag.hs2geography/linear-referencing.h :i:110n4:s:
e29In file included from r:s2geography/geography.ht :_warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]4r
:
_In file included from a../src/s2/s2polygon.h  s:110s29 | i:
gvIn file included from no_/usr/local/clang/include/absl/container/flat_hash_map.hih:di43 n:
tSIn file included from _e/usr/local/clang/include/absl/container/hash_container_defaults.hit:Fmlp19al:
g,In file included from ( /usr/local/clang/include/absl/container/internal/hash_function_defaults.hac:bo59ns:
lsIn file included from :t/usr/local/clang/include/absl/strings/cord.h: :F&94,l:
a
In file included from g      /usr/local/clang/include/absl/strings/internal/cordz_info.h<| :T  ^31>
:
*/usr/local/clang/include/absl/synchronization/mutex.h /usr/local/clang/include/absl/container/internal/btree_container.h:a:1294b509:s:62l52:_: n warning: onote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nexpanded from macro 'ABSL_INTERNAL_X'
n
u l1294l |     f 509l a  | g ,     c  o  n  s  t     T &     vA )B  S { 
L        _| I                             ^N 
T E /usr/local/clang/include/absl/base/nullability.hR : N241 A: L22 _: A  Tnote:  expanded from macro 'absl_nonnull'T 
R I   B241 U | T #E d _e fC iA nP Te U  aR bE sDcl_o_nnBsoYtn( ntvuholiilds *)_ N)ao,bns nlu _ln lo 
n       n | u                     ^ l
l   o b j , 
        |                                                               ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :\ 
note:       expanded from macro 'absl_nonnull'| 
                                                   ^
  241 | /usr/local/clang/include/absl/container/internal/common.h#:d31e:f9i:n In file included from enote: s2geography/distance.cc macro 'ABSL_INTERNAL_IF_true' defined here:a
2b:
sIn file included from    ls2geography/distance.h_31:n | 4o#:
ndIn file included from nes2geography/geography.huf:li4ln:
 eIn file included from _ ../src/s2/s2polygon.hNA:oB34nS:
nLIn file included from u_../src/s2/mutable_s2shape_index.hlI:lN33
T:
      EIn file included from | R../src/s2/base/commandlineflags.h                     ^N:
A21L:
_/usr/local/clang/include/absl/flags/flag.hI:F118_:t29r:u ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
f_sa  t118i | svfIn file included from ois2geography/linear-referencing.ccie:dd2 ,:
S In file included from .e.s2geography/linear-referencing.ht.:F)4l :
aiIn file included from gfs2geography/geography.h(_:as4ba:
stIn file included from li../src/s2/s2polygon.h:s::f29Fi:
leIn file included from ad/usr/local/clang/include/absl/container/flat_hash_map.hg
:<      43T| :
>        ^In file included from *
/usr/local/clang/include/absl/container/hash_container_defaults.h :a19b:
sIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:n59o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
 In file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hl:In file included from a31gs2geography/coverings.cc:
,:/usr/local/clang/include/absl/synchronization/mutex.h 2:c:
1309oIn file included from :ns2geography/coverings.h35s::t6  :
warning: Vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from &
s2geography/geography.h :v 4)1309:
  | In file included from {v
../src/s2/s2polygon.ho      :i| d                            ^34 
R:
eIn file included from /usr/local/clang/include/absl/base/nullability.hg../src/s2/mutable_s2shape_index.h:i:241s30:t:
22eIn file included from :r/usr/local/clang/include/absl/container/btree_map.h C:onote: nexpanded from macro 'absl_nonnull'67d
V:
  a/usr/local/clang/include/absl/container/internal/btree_container.h241r: | T#564rda:ecf3ei:rn (ewarning: v 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]oai
bds l(_*  na564obn | sn lu_ lnlAoB n_nSNuLol_nlIn NuTflEnl)R
N(A      
L| _                     ^X      (
| i                                  ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uhliln t__Niomnpnlu,l lc
o      n| s                     ^t
 &,
In file included from       s2geography/linear-referencing.cc| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2
:
In file included from s2geography/linear-referencing.h  :5654 | :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h :c19o:
nIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht: 59&:
,In file included from  /usr/local/clang/include/absl/strings/cord.ht:r94u:
eIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :t31r:
u/usr/local/clang/include/absl/synchronization/mutex.he:,1310
:      17| :                  ~~~~~~~~~~~~~~~~~~~~ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  566 |   1310  |          c o n s t   c h a r *  caobnsslt__niotnenrualtlo rm(shgi,n tc)o nAsBtS Lv_oIiNdT*E RaNbAsLl__CnOoMnMnAu)l;l
       c| v                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
);
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 509                ^:
47:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'ABSL_INTERNAL_X'22
: note:   expanded from macro 'absl_nonnull'509
 |     241  |  # d e f i n eA BaSbLs_lI_NnToEnRnNuAlLl_ A_TNToRnInBuUlTlE
_      C| A                     ^P
TURED_BYIn file included from (s2geography/linear-referencing.cct:h2i:
sIn file included from )s2geography/linear-referencing.h):,4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h :\59
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                                              ^~~~:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/btree_container.h::1310564::473::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/container/internal/btree_container.h: 5111310: | 52 :   note:  expanded from macro 'ABSL_INTERNAL_X'c
ons  tIn file included from 511 s2geography/geography.cc | c:h 2 a:
 rIn file included from  * s2geography/geography.h  :a 4b :
s In file included from l ../src/s2/s2polygon.h_A:nB34oS:
nLIn file included from _n../src/s2/mutable_s2shape_index.huIl:Nl41 T:
mEIn file included from sR../src/s2/s2cell_id.hgN:,A43 L:
c_oIn file included from nA../src/s2/s1angle.hsT:tT28 Rv:
IoIn file included from Bi../src/s2/s2point.hdU:*T27 E:
a_In file included from bCs../src/s2/s2coder.hAl:P_23Tn:
UoIn file included from nRn/usr/local/clang/include/absl/status/status.hEu:lDl67_ B:
cYv/usr/local/clang/include/absl/status/internal/status_internal.h():)t149h;:
i13      s:| )                                              ^) 
)warning: /usr/local/clang/include/absl/base/nullability.h type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: 
241 : 22   : 149   | note:  cexpanded from macro 'absl_nonnull' o
n s  t 241   | c # h da erf i*n  ea  bas bls _ln _on non n\unl
ull       l| M a                                                   ^_kN
eoCn/usr/local/clang/include/absl/container/internal/common.hhne:uc31lk:lF9a
i:      l | S                     ^note: t
rmacro 'ABSL_INTERNAL_IF_true' defined herei
ng(   
31       | | #            ^d
efi/usr/local/clang/include/absl/base/nullability.hn:e241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fIiFn_et raubes(li_fn_osnantuilslf i_eNdo,n n.u.l.l)
       i| f                     ^_
satisfied
      | In file included from         ^s2geography/geography.cc
:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.hIn file included from :s2geography/coverings.cc43::
2In file included from :
../src/s2/s1angle.hIn file included from :s2geography/coverings.h28::
6In file included from :
../src/s2/s2point.hIn file included from :s2geography/geography.h27::
4In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2polygon.h23::
34In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/mutable_s2shape_index.h67::
30/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 150/usr/local/clang/include/absl/container/btree_map.h::2567::
 /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]564
:3:   warning: 150'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
    c  o564n | s t  AaBbSsLl_:I:NSTtEaRtNuAsL*_ Xa(bisnls_enrotn_nourl_la ssstiagtnu,s ,i ncsoenrstt_ ocrh_aars*s iagbns_lh_innotn_niumlpll ,p rceofnisxt) ;&
,      
|                               ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/base/nullability.h:  241565: | 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   acbosnls_tn o&n,n utlrlu e_,N otnrnuuel,l

            | |                   ~~~~~~~~~~~~~~~~~~~~                     ^

  566 |       In file included from  s2geography/geography.cc : 2 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h :c34o:
nIn file included from s../src/s2/mutable_s2shape_index.ht:_41i:
tIn file included from e../src/s2/s2cell_id.hr:a43t:
oIn file included from r../src/s2/s1angle.h(:h28i:
nIn file included from t../src/s2/s2point.h): 27A:
BIn file included from S../src/s2/s2coder.hL:_23I:
NIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
A/usr/local/clang/include/absl/status/internal/status_internal.hL:_150C:O58M:M Awarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
150 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 :c47o:n snote: texpanded from macro 'ABSL_INTERNAL_X' 
abs  l511: | : S t a t u s *   a bAsBlS_Ln_oInNnTuElRlN AsLt_aAtTuTsR,I BcUoTnEs_tC AcPhTaUrR*E Da_bBsYl(_tnhoinsn)u)l)l   p r e f i x ) ; 
        |                                                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

      |                                                 ^~~~241
 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BYIn file included from (s2geography/geography.cct:h2i:
sIn file included from )s2geography/geography.h):)4 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 41 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h :\27
:
      In file included from | ../src/s2/s2coder.h                                                   ^:
23:
/usr/local/clang/include/absl/container/internal/common.h:/usr/local/clang/include/absl/status/status.h31::7259::38 :note:  macro 'ABSL_INTERNAL_IF_true' defined herewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   31 | #  d725e | f i nset aAtBiScL _sItNaTtEuRsN_AiLn_tIeFr_ntarlu:e:(Sitfa_tsuastRiespf*i eadb,s l._.n.o)n niufl_ls aPtriespfaireedToMo
d      i| f        ^y
(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2geography/coverings.cc#:d2e:
fIn file included from is2geography/coverings.hn:e6 :
aIn file included from bs2geography/geography.hs:l4_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h
:      570| :                     ^3
: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assigIn file included from ns2geography/geography.cc,: 2i:
nIn file included from ss2geography/geography.he:r4t:
_In file included from o../src/s2/s2polygon.hr:_34a:
sIn file included from s../src/s2/mutable_s2shape_index.hi:g41n:
_In file included from h../src/s2/s2cell_id.hi:n43t:
_In file included from i../src/s2/s1angle.hm:p28l:
,In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :&23,:
 /usr/local/clang/include/absl/status/status.h&:&732,:
29      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  571 |    732  |      s t a t i c   c o n s t   sftadl:s:es,t rtirnuge*,  acbosnls_tn_ointneurlalt oErm(phtiynStt)r iAnBgS(L)_;I
N      T| E                            ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241C:O22M:M Anote: )expanded from macro 'absl_nonnull';

      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f511i:n47e:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  o511n | n u l l   _ N o n n uAlBlS
L      _| I                     ^N
TERNAL_ATTRIBUTE_CAPTIn file included from Us2geography/geography.ccR:E2D:
_In file included from Bs2geography/geography.hY:(4t:
hIn file included from i../src/s2/s2polygon.hs:)34):
)In file included from  ../src/s2/mutable_s2shape_index.h : 41 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
\/usr/local/clang/include/absl/status/status.h
:      733| :                                              ^~~~29
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::Status/usr/local/clang/include/absl/container/internal/btree_container.hR:e572p:*3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_non  n572u | l l  ArB)S;L
_      I| N                                                            ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22X:( inote: nexpanded from macro 'absl_nonnull's
er  t241_ | o#rd_eafsisnieg na,b siln_sneorntn_uolrl_ a_sNsoingnnu_lhli
n      t| _                     ^i
mpl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 509s2geography/geography.cc::522::
 In file included from note: s2geography/geography.hexpanded from macro 'ABSL_INTERNAL_X':
4:
In file included from ../src/s2/s2polygon.h  :50934 | :
 In file included from  ../src/s2/mutable_s2shape_index.h : 41 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
AIn file included from B../src/s2/s1angle.hS:L28_:
IIn file included from N../src/s2/s2point.hT:E27R:
NIn file included from A../src/s2/s2coder.hL:_23A:
T/usr/local/clang/include/absl/status/status.hT:R752I:B44U:T Ewarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
APT  U752R | E D _sBtYa(ttihci sc)o)n,s t   s t a t u s _ i n t e r n a l : : S t a t u\s
R      e| p                                                   ^*
 a/usr/local/clang/include/absl/container/internal/common.hb:s31l:_9n:o nnote: nmacro 'ABSL_INTERNAL_IF_true' defined hereu
ll    R31e | p#TdoePfoiinnet eArB(S
L      _| I                                           ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:I Fnote: _expanded from macro 'absl_nonnull't
ru  e241( | i#fd_esfaitnies faibesdl,_ n.o.n.n)u lilf __sNaotninsuflile
d      
|                            ^| 
        ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                     In file included from  s2geography/linear-referencing.cc : 2\:

In file included from       s2geography/linear-referencing.h| :                                                   ^4
:
In file included from /usr/local/clang/include/absl/container/internal/common.hs2geography/geography.h::324::
9In file included from :../src/s2/s2polygon.h :note: 29macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:   4332:
 | In file included from #/usr/local/clang/include/absl/container/hash_container_defaults.hd:e19f:
iIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.he: 59A:
BS/usr/local/clang/include/absl/strings/cord.hL:_109I:N53T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_IF  _109f | avlosied( iCfo_psyaCtoirsdfTioeSdt,r i.n.g.()c o_n_sVtA _CAoRrGdS&_ _s
r      c| ,        ^ 
std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2geography/coverings.cc| :                     ^2
:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        In file included from \s2geography/linear-referencing.cc
:      2| :
                                              ^~~~In file included from 
s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
574In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h3::43 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/hash_container_defaults.h
:19/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5259::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'ABSL_INTERNAL_X'425
:62:   warning: 511type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
       425  |      f rAiBeSnLd_ IvNoTiEdR NCAoLp_yACToTrRdITBoUSTtEr_iCnAgP(TcUoRnEsDt_ BCYo(rtdh&i ss)r)c),   s t d : : s t r i n g *   a b s l _ n o n n u\l
l       | d                                                   ^s
t)/usr/local/clang/include/absl/container/internal/common.h;:
31      :| 9                                                             ^:
 note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_true' defined here:
241:22:    31note:  | expanded from macro 'absl_nonnull'#
defi  n241e |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oInFn_utlrlu e_(Niofn_nsualtli
s      f| i                     ^e
d, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.hIn file included from :s2geography/coverings.cc4::
2In file included from :
../src/s2/s2polygon.hIn file included from :s2geography/coverings.h29::
6In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :s2geography/geography.h43::
4In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2polygon.h19::
34In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/mutable_s2shape_index.h59::
30:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h437::6747:
:/usr/local/clang/include/absl/container/internal/btree_container.h :warning: 574type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
3: warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]437
 |       574  |      A B S L _ I N T E R N A L _ X ( i n s e r t _ o r _satsds:i:gsnt,r iinngs*e ratb_solr__naosnsniuglnl_ hdisntt)_;i
m      p| l                                              ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :& ,note:  expanded from macro 'absl_nonnull'&
&,  
241       | | #  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
efi  n575e |   a b s l _ n o n n u l l   _ N o n nturlule
,       | t                     ^r
ue, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |      In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from As2geography/linear-referencing.hB:S4L:
_In file included from Is2geography/geography.hN:T4E:
RIn file included from N../src/s2/s2polygon.hA:L29_:
AIn file included from T/usr/local/clang/include/absl/container/flat_hash_map.hT:R43I:
BIn file included from U/usr/local/clang/include/absl/container/hash_container_defaults.hT:E19_:
CIn file included from A/usr/local/clang/include/absl/container/internal/hash_function_defaults.hP:T59U:
R/usr/local/clang/include/absl/strings/cord.hE:D480_:B39Y:( twarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
s))  )480  |          u s i n g   p o i n t e r   =   c o n\s
t       | v                                              ^~~~a
lue_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2geography/linear-referencing.cc577::23:
:In file included from  s2geography/linear-referencing.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]4
:
In file included from s2geography/geography.h:4  :
577In file included from  | ../src/s2/s2polygon.h : 29A:
BIn file included from S/usr/local/clang/include/absl/container/flat_hash_map.hL:_43I:
NIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hE:R19N:
AIn file included from L/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:X59(:
i/usr/local/clang/include/absl/strings/cord.hn:s504e:r40t:_ owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ass  i504g | n ,   i nesxeprlti_coirt_ aCshsuingknI_theirnatt_oirm(pclo,n s&t& ,C ocrodn*s ta b&s,l
_      n| o  ^n
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509 :c52o:r dnote: )expanded from macro 'ABSL_INTERNAL_X';

      |                                        ^  
509 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his)),                In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4\:

In file included from       s2geography/geography.h| :                                                   ^4
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/common.h::2932:
:In file included from 9/usr/local/clang/include/absl/container/flat_hash_map.h:: 43note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19   :
32In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h#:d59e:
f/usr/local/clang/include/absl/strings/cord.hi:n507e: 43A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT  E507R | N A L _ IvFo_ifda lIsnei(tiTfr_esea(tciosrfdi_eidn,t e.r.n.a)l :_:_CVoAr_dARReGpS*_ _a
b      s| l        ^_
nonnull tIn file included from rs2geography/coverings.cce:e2):
;In file included from 
s2geography/coverings.h      :| 6                                          ^:

In file included from s2geography/geography.h:/usr/local/clang/include/absl/base/nullability.h4::
241In file included from :../src/s2/s2polygon.h22::34 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/mutable_s2shape_index.h
:30:
  In file included from 241/usr/local/clang/include/absl/container/btree_map.h | :#67d:
e/usr/local/clang/include/absl/container/internal/btree_container.hf:i577n:e3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_non  n577u | l l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2geography/linear-referencing.cc::5112::
52In file included from :s2geography/linear-referencing.h :note: 4expanded from macro 'ABSL_INTERNAL_X':

In file included from s2geography/geography.h:4  :
511In file included from  | ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hA:B19S:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hI:N59T:
E/usr/local/clang/include/absl/strings/cord.hR:N525A:L35_:A Twarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
IBUT  E525_ | C A P T UaRbEsDl_:B:Yc(otrhdi_si)n)t)e r n a l : : C o r d R e p *   a b s l _ n u l l\a
b      l| e                                                   ^ 
cu/usr/local/clang/include/absl/container/internal/common.hr:r32e:n9t:_ lnote: emacro 'ABSL_INTERNAL_IF_false' defined herea
f_    32= |  #nduelflipnter ;A
B      S| L                                  ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E257R:N23A:L _note: Iexpanded from macro 'absl_nullable'F
_f  a257l | s#ed(eiffi_nsea taibssfli_endu, ...)l l_a_bVlAe_ A_RNGuSl_l_a
b      l| e        ^

      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43In file included from :
s2geography/coverings.ccIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h2::
19In file included from :
s2geography/coverings.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h6::
59In file included from :
s2geography/geography.h/usr/local/clang/include/absl/strings/cord.h::4582:
:In file included from 37../src/s2/s2polygon.h:: 34warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h582: | 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 579e:x3p:l iwarning: cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
t Ch  u579n | k R aAnBgSeL(_cIoNnTsEtR NCAoLr_dX*( ianbsselr_tn_oonrn_ualsls icgonr,d )i n:s ecrotr_do_r(_caosrsdi)g n{_}h
i      n| t                                    ^_
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22&:& ,note:  expanded from macro 'absl_nonnull'c
on  s241t |  #&d,e
f      i| n  ^e
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s509l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   _509N | o n n u l l 
        |                       ^ 
ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BYIn file included from (s2geography/linear-referencing.cct:h2i:
sIn file included from )s2geography/linear-referencing.h):,4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h :\59
:
      /usr/local/clang/include/absl/strings/cord.h| :                                                   ^588
:17:/usr/local/clang/include/absl/container/internal/common.h :warning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
9:   note: 588macro 'ABSL_INTERNAL_IF_false' defined here | 
       32c | o#ndsetf iCnoer dA*B SaLb_sIlN_TnEoRnNnAuLl_lI Fc_ofradl_s;e
(      i| f                ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: ,expanded from macro 'absl_nonnull' 
..  .241) |  #_d_eVfAi_nAeR GaSb_s_l
_      n| o        ^n
null _NonnIn file included from us2geography/coverings.ccl:l2
:
      In file included from | s2geography/coverings.h                     ^:
6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assigIn file included from ns2geography/linear-referencing.cc,: 2i:
nIn file included from ss2geography/linear-referencing.he:r4t:
_In file included from os2geography/geography.hr:_4a:
sIn file included from s../src/s2/s2polygon.hi:g29n:
_In file included from h/usr/local/clang/include/absl/container/flat_hash_map.hi:n43t:
_In file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hm:p19l:
,In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h&:&59,:
 /usr/local/clang/include/absl/strings/cord.hc:o641n:s33t:  &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^
  641/usr/local/clang/include/absl/container/internal/btree_container.h | : 511 : 52 :u snote: iexpanded from macro 'ABSL_INTERNAL_X'n
g p  o511i | n t e r   =   c o n sAtB ScLh_aIrN*T EaRbNsAlL__nAoTnTnRuIlBlU;T
E      _| C                                ^A
PT/usr/local/clang/include/absl/base/nullability.hU:R241E:D22_:B Ynote: (expanded from macro 'absl_nonnull't
hi  s241) | )#)d e f i n e   a b s l _ n o n n u l l   _ N o n n\u
l      l| 
                                                   ^      
|                      ^/usr/local/clang/include/absl/container/internal/common.h
:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :s2geography/coverings.cc19::
2In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :s2geography/coverings.h59::
6/usr/local/clang/include/absl/strings/cord.h:
:In file included from 655s2geography/geography.h::394::
 In file included from warning: ../src/s2/s2polygon.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
34:
In file included from ../src/s2/mutable_s2shape_index.h  :65530 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67e:
x/usr/local/clang/include/absl/container/internal/btree_container.hp:l579i:c3i:t  warning: C'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
arIter  a579t | o r (AcBoSnLs_tI NCToErRdN*A La_bXs(li_nnsoenrntu_lolr _caosrsdi)g
n      ,|                                        ^i
ns/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | _#hdienfti_niem palb,s l&_&n,o ncnounlslt  _&N,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l
        | 580                     ^ | 
                  false, true, const_iterator(hinIn file included from ts2geography/linear-referencing.cc): 2A:
BIn file included from Ss2geography/linear-referencing.hL:_4I:
NIn file included from Ts2geography/geography.hE:R4N:
AIn file included from L../src/s2/s2polygon.h_:C29O:
MIn file included from M/usr/local/clang/include/absl/container/flat_hash_map.hA:)43;:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/container/internal/btree_container.h59::
511/usr/local/clang/include/absl/strings/cord.h::47667:: 44note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  511 |     667  |      s t a t iAcB SCLo_rIdN TAEdRvNaAnLc_eAATnTdRRIeBaUdT(EC_hCaArPITtUeRrEaDt_oBrY*( tahbissl)_)n)o n n u l l   i t ,   s i z e _ t   n _ b y t e s\)
;      
|                                                     ^~~~| 
                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36/usr/local/clang/include/absl/container/internal/btree_container.h:: 581warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]3
:   warning: 730passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
      e581x | p l iAcBiStL _CIhNaTrERRaNnAgLe_(Xc(oinnsste rCto_rodr*_ aasbssilg_nn,o ninnuslelr tc_oorrd_)a s:s icgonr_dh_i(ncto_ridm)p l{,} 
&      &| ,                                   ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22&:, 
      note: | expanded from macro 'absl_nonnull'  ^

  241/usr/local/clang/include/absl/container/internal/btree_container.h | :#509d:e52f:i nnote: eexpanded from macro 'ABSL_INTERNAL_X' 
abs  l509_ | n o n n u l l   _ N oAnBnSuLl_lI
N      T| E                     ^R
NAL_ATTRIBUTE_CAPTURED_BY(this))In file included from ,s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 43 :
 In file included from \/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
                                                   ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/strings/cord.h::31736::917::  note: warning: macro 'ABSL_INTERNAL_IF_true' defined heretype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

     31736 |  | # d e f icnoen sAtB SCLo_rIdN*T EaRbNsAlL__nIoFn_nturlule (ciofr_ds_a;t
i      s| f                ^i
ed/usr/local/clang/include/absl/base/nullability.h,: 241.:.22.:)  note: iexpanded from macro 'absl_nonnull'f
_s  a241t | i#sdfeifeidn
e       | a        ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from s2geography/linear-referencing.cc  :5822 | :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h :t43r:
uIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h,: 19f:
aIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:e59,:
 /usr/local/clang/include/absl/strings/cord.hc:o795n:s43t:_ iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rato  r795( | h i nftr)i eAnBdS Lv_oIiNdT EARbNsAlLF_oCrOmMaMtAF)l;u
s      h| (                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bsl/usr/local/clang/include/absl/container/internal/btree_container.h:::509C:o47r:d *note:  expanded from macro 'ABSL_INTERNAL_X'a
bsl_  n509o | n n u l l   c o r d ,A
B      S| L                                          ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Aexpanded from macro 'absl_nonnull'T
TR  I241B | U#TdEe_fCiAnPeT UaRbEsDl__BnYo(ntnhuilsl) )_,N o n n u l l 
        |                       ^ 
             \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_aIn file included from ss2geography/linear-referencing.ccs:i2g:
nIn file included from _s2geography/linear-referencing.hh:i4n:
tIn file included from _s2geography/geography.hi:m4p:
lIn file included from ,../src/s2/s2polygon.h :&29&:
,In file included from  /usr/local/clang/include/absl/container/flat_hash_map.hc:o43n:
sIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h :&19,:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :  ^59
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/btree_container.h::927509::4352::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    927509 |  |                      A B S L _ I N T E R N A L _ A T T R I B U T EC_oCrAdPRTeUpR*E Da_bBsYl(_tnhuilsl)a)b,l e   r e p ) ; 
        |                                            ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
\
        257|  |                                                    ^#
de/usr/local/clang/include/absl/container/internal/common.hf:i31n:e9 :a bnote: smacro 'ABSL_INTERNAL_IF_true' defined herel
In file included from _   s2geography/geography.ccn31:u | 2l#l:
daIn file included from bes2geography/geography.hlf:ei4 n:
_eIn file included from  N../src/s2/s2polygon.hAuB:lS34lL:
a_In file included from bIl../src/s2/mutable_s2shape_index.hNeT:
E41R      :
N| In file included from A                      ^../src/s2/s2cell_id.hL
_:I43F:
_In file included from t../src/s2/s1angle.hr:u28e:
(In file included from i../src/s2/s2point.hf:_27s:
aIn file included from In file included from t../src/s2/s2coder.his2geography/linear-referencing.cc:s:23f2:
i:
e/usr/local/clang/include/absl/status/status.hdIn file included from :,s2geography/linear-referencing.h1031 ::.442.:
:.In file included from  )s2geography/geography.h warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i4
f:
_In file included from s../src/s2/s2polygon.h a:t1031i29 | s:
ifIn file included from ni/usr/local/clang/include/absl/container/flat_hash_map.hle:id43n
:
e      In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h        ^c:o
19n:
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :s59t:
a/usr/local/clang/include/absl/strings/cord.ht:u929s:_26i:n twarning: eIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]rs2geography/coverings.cc
n:a2  l:
929:In file included from  | : s2geography/coverings.hS t: a 6tv:
uoIn file included from siRs2geography/geography.hde: p4S*:
w aIn file included from apb(../src/s2/s2polygon.hsIln:_ln34ion:
nenIn file included from Rue../src/s2/mutable_s2shape_index.hlp:l* 30 S:
atbIn file included from ast/usr/local/clang/include/absl/container/btree_map.hlu_:sn67:o::
nRn/usr/local/clang/include/absl/container/internal/btree_container.heup:lTl583o P:roh3isn):t;e 
r      (warning: | 
                         ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      

| /usr/local/clang/include/absl/base/nullability.h                                         ^:
241:  22583/usr/local/clang/include/absl/base/nullability.h: | :  241note:  :expanded from macro 'absl_nonnull'A22
B:S   L241note: _ | expanded from macro 'absl_nonnull'#I
dNe  fT241iE | n#eRd NeafAbiLsnl_e_ Xna(obinsnnls_uenlroln tn__Nuoolnrln _u_lNalo
ns      ns| u                     ^il
lg
n      ,|                       ^i
nsert_or_assign_In file included from hs2geography/linear-referencing.cci:n2t:
_In file included from is2geography/linear-referencing.hm:p4l:
,In file included from  s2geography/geography.h&:&4,:
 In file included from c../src/s2/s2polygon.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.h&:,43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
19:
In file included from   In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h584s2geography/geography.cc: | :59 2:
 /usr/local/clang/include/absl/strings/cord.h :
: In file included from 932 s2geography/geography.h: :17 4: :
  In file included from warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2polygon.h 
: 34   :
932 In file included from  |  ../src/s2/mutable_s2shape_index.h  :  41  :
 tIn file included from cr../src/s2/s2cell_id.hou:ne43s,:
t In file included from  t../src/s2/s1angle.hrcu:he28a,:
r In file included from *c../src/s2/s2point.h o:na27bs:
stIn file included from l_../src/s2/s2coder.hi_:nt23eu:
lr/usr/local/clang/include/absl/status/status.hla:at1038obr:(lh33ie: n td)warning: a type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tA
aB(S) L _1038cI | NoT En Rs Nt ;As
tL      a_| CtO                ^MuM
sA_)/usr/local/clang/include/absl/base/nullability.h;i:
n257      t:e| 23                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r:
n anote: l/usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nullable'::
:509  S:257t47 | a#:tdu esfnote: Riexpanded from macro 'ABSL_INTERNAL_X'en
pe*  a  ab509bs | sl l_ _n nuo lnl na ubl lle    r _eNApu)Bl lS{a
Lb      l_| eI                                ^
N
      T| E/usr/local/clang/include/absl/base/nullability.h                      ^R:
N241A:L22_:A Tnote: Texpanded from macro 'absl_nonnull'R
IIn file included from   Bs2geography/linear-referencing.cc241U: | T2#E:
d_In file included from eCs2geography/linear-referencing.hfA:iP4nT:
eUIn file included from  Rs2geography/geography.haE:bD4s_:
lBIn file included from _Y../src/s2/s2polygon.hn(:ot29hn:
inIn file included from us/usr/local/clang/include/absl/container/flat_hash_map.hl):l)43, :
_ In file included from N /usr/local/clang/include/absl/container/hash_container_defaults.ho :n 19n :
u In file included from l /usr/local/clang/include/absl/container/internal/hash_function_defaults.hl :
 59       :
|  /usr/local/clang/include/absl/strings/cord.h                     ^ :
 934 : 31 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      934\ | 
        |                                                ^~~~ 
void set_da/usr/local/clang/include/absl/container/internal/btree_container.ht:a(con583s:t3 :c hwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
* /usr/local/clang/include/absl/container/internal/btree_container.ha:b511s:l52_:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
able   511d | a t a ,   s i z e _ tA BnS)L;_
I      N| T                              ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L257_:A23T:T Rnote: Iexpanded from macro 'absl_nullable'B
UT  E257_ | C#AdPeTfUiRnEeD _aBbYs(lt_hniusl)l)a)b l e   _ N u l l a b l e 
        |                        ^ 
       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
In file included from    s2geography/linear-referencing.cc31: | 2#:
In file included from dIn file included from s2geography/geography.cces2geography/linear-referencing.h:f:i2n4:
e:
In file included from  In file included from s2geography/geography.hAs2geography/geography.hB:S:4L4:
_:
In file included from IIn file included from ../src/s2/s2polygon.hN../src/s2/s2polygon.hT::E3429R:
:
NIn file included from AIn file included from L../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/flat_hash_map.h_:I:41F43:
_:
tIn file included from In file included from r../src/s2/s2cell_id.hu/usr/local/clang/include/absl/container/hash_container_defaults.h:e:43(19:
i:
In file included from fIn file included from _../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:a:28t59:
i:
In file included from s/usr/local/clang/include/absl/strings/cord.h../src/s2/s2point.hf:i:935e27d:,:
11 In file included from :.../src/s2/s2coder.h .:warning: .23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]):

 /usr/local/clang/include/absl/status/status.hi:f  1063_935:s | 13 a: t  iwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sc
fhiae rd1063*
 |  c      aob| nss        ^lt
_ ncohnanru*l la bsselt__ndoantnaIn file included from u(s2geography/coverings.cclsl:i z2Set_:
atIn file included from t us2geography/coverings.hns):M;e6 s :
s/aIn file included from /gs2geography/geography.h eW:Ars4iCt:
SeIn file included from t r../src/s2/s2polygon.hd(:a
t34      a:
|  In file included from             ^t../src/s2/mutable_s2shape_index.h
o: 30/usr/local/clang/include/absl/base/nullability.ht:
:hIn file included from 241e/usr/local/clang/include/absl/container/btree_map.h: :22r67:e:
 s/usr/local/clang/include/absl/container/internal/btree_container.hnote: uexpanded from macro 'absl_nonnull'l:
t583
  :      2413|  | :          ^# 
dwarning: e/usr/local/clang/include/absl/base/nullability.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f:
i241n:e22 :  a b583note: s | expanded from macro 'absl_nonnull'l 
_   nA241Bo | Sn#Lndu_elIflNi nT_EeNR NoanAbnsLu_ll_lXn
o(      ni| n                     ^nu
slelr t__Noorn_nauslsli
g      n| ,                     ^ 
insert_or_assign_hint_imIn file included from ps2geography/linear-referencing.ccl:,2 :
&In file included from &s2geography/linear-referencing.h,: 4c:
oIn file included from ns2geography/geography.hs:t4 :
&In file included from ,../src/s2/s2polygon.h
:      29| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43:
  In file included from 584/usr/local/clang/include/absl/container/hash_container_defaults.h | : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 /usr/local/clang/include/absl/strings/cord.h : 937 : 35 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 tru  e937, |   t r u ea,b sclo:n:scto_ridt_eirnatteorrn(ahli:n:tC)o rAdBRSeLp_*I NaTbERsNlA_Ln_uClOlMaMbAl)e; 
t      r| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
() /usr/local/clang/include/absl/container/internal/btree_container.hc:o511n:s47t:; 
      note: | expanded from macro 'ABSL_INTERNAL_X'                                  ^

/usr/local/clang/include/absl/base/nullability.h  :511257 | : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | A#BdSeLf_iInNeT EaRbNsAlL__nAuTlTlRaIbBlUeT E__NCuAlPlTaUbRlEeD
_      B| Y                      ^(
this)))             In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h\:
4      :
| In file included from                                               ^~~~../src/s2/s2polygon.h
:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable cle/usr/local/clang/include/absl/container/internal/btree_container.ha:r586(:)3;:
       warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                  ^

/usr/local/clang/include/absl/base/nullability.h:257  :58623 | :   note: Aexpanded from macro 'absl_nullable'B
SL  _257I | N#TdEeRfNiAnLe_ Xa(bisnls_enrutl_loarb_laes s_iNgunl,l aibnlsee
r      t| _                      ^o
r_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: In file included from note: s2geography/linear-referencing.ccexpanded from macro 'ABSL_INTERNAL_X':
2:
  In file included from 509s2geography/linear-referencing.h | : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h :A29B:
SIn file included from L/usr/local/clang/include/absl/container/flat_hash_map.h_:I43N:
TIn file included from E/usr/local/clang/include/absl/container/hash_container_defaults.hR:N19A:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:T59T:
R/usr/local/clang/include/absl/strings/cord.hI:B950U:T18E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TUR  E950D | _ B Y ( tChoirsd)R)e,p F l a t *   a b s l _ n o n n u l l   M a k e F\l
a      t| W                                                   ^i
thE/usr/local/clang/include/absl/container/internal/common.hx:t32r:a9C:a pnote: amacro 'ABSL_INTERNAL_IF_false' defined herec
it   y32( | s#idzeef_itn ee xAtBrSaL)_;I
N      T| E                 ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241I:F22_:f anote: lexpanded from macro 'absl_nonnull's
e(  i241f | _#sdaetfiisnfei eadb,s l._.n.o)n n_u_lVlA __ANRoGnSn_u_l
l      
|               ^| 
                     ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34In file included from :
s2geography/linear-referencing.ccIn file included from :../src/s2/mutable_s2shape_index.h2::
30In file included from :
s2geography/linear-referencing.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h4::
67In file included from :
s2geography/geography.h/usr/local/clang/include/absl/container/internal/btree_container.h::4586:
:In file included from 3../src/s2/s2polygon.h:: 29:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/flat_hash_map.h
:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h  :58619 | :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:B59S:
L/usr/local/clang/include/absl/strings/cord.h_:I957N:T27E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_X(i  n957s | e r t _ ovro_iads sSiegtnT,r eien(sCeorrtd_Roerp_*a sasbisgln__nhoinnntu_lilm prle,p ,& &c,o n&s&t,  CfoarldszeU,p
d      a| t  ^e
Sc/usr/local/clang/include/absl/container/internal/btree_container.ho:p511e:&52 :s cnote: oexpanded from macro 'ABSL_INTERNAL_X'p
e);  
511       | |                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eA TaTbRsIlB_UnToEn_nCuAlPlT U_RNEoDn_nBuYl(lt
h      i| s                     ^)
))                     In file included from  s2geography/linear-referencing.cc : 2\:

In file included from       s2geography/linear-referencing.h| :                                                   ^4
:
In file included from s2geography/geography.h/usr/local/clang/include/absl/container/internal/common.h::432:
:In file included from 9../src/s2/s2polygon.h:: 29note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43   :
32In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h#:d19e:
fIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e59 :
A/usr/local/clang/include/absl/strings/cord.hB:S961L:_34I:N Twarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
NAL  _961I | F _ f a lvsoei(di fS_estaTtriesefOireEdm,p t.y.(.C)o r_d_RVeAp_*A RaGbSs_l__
n      u| l        ^l
able rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2geography/coverings.ccn:n2u:
lIn file included from ls2geography/coverings.h :_6N:
oIn file included from ns2geography/geography.hn:u4l:
lIn file included from 
../src/s2/s2polygon.h      :| 34                     ^:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2geography/linear-referencing.cc:  2588:
 | In file included from  s2geography/linear-referencing.h :A4B:
SIn file included from Ls2geography/geography.h_:I4N:
TIn file included from E../src/s2/s2polygon.hR:N29A:
LIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hX:(43i:
nIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.he:r19t:
_In file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:_59a:
s/usr/local/clang/include/absl/strings/cord.hs:i972g:n31,:  iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ert  _972o | r _ a s sviogind_ hEimnptl_aicmepTlr,e e&(&C,o r&d&R,e pf*a lasbes,l
_      n| o  ^n
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509 :r52e:p ,note:  expanded from macro 'ABSL_INTERNAL_X'c
ons  t509  | I n l i n e D a t a &A BpSaLr_eInNtT,E
R      N| A                              ^L
_A/usr/local/clang/include/absl/base/nullability.hT:T241R:I22B:U Tnote: Eexpanded from macro 'absl_nonnull'_
CA  P241T | U#RdEeDf_iBnYe( tahbissl)_)n,o n n u l l   _ N o n n u l l 
        |                       ^ 
     \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #In file included from ds2geography/linear-referencing.cce:f2i:
nIn file included from es2geography/linear-referencing.h :A4B:
SIn file included from Ls2geography/geography.h_:I4N:
TIn file included from E../src/s2/s2polygon.hR:N29A:
LIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hI:F43_:
fIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hl:s19e:
(In file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hf:_59s:
a/usr/local/clang/include/absl/strings/cord.ht:i978s:f36i:e dwarning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
...  )978  | _ _ V A _vAoRiGdS _C_o
m      m| i        ^t
Tree(const In file included from Cs2geography/coverings.cco:r2d:
RIn file included from es2geography/coverings.hp:*6 :
aIn file included from bs2geography/geography.hs:l4_:
nIn file included from u../src/s2/s2polygon.hl:l34a:
bIn file included from l../src/s2/mutable_s2shape_index.he: 30o:
lIn file included from d/usr/local/clang/include/absl/container/btree_map.h_:r67e:
p/usr/local/clang/include/absl/container/internal/btree_container.h,:
588      :| 3                                   ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]257
:23:   note: 588expanded from macro 'absl_nullable' | 
    A257B | S#Ld_eIfNiTnEeR NaAbLs_lX_(niunlslearbtl_eo r__Nauslsliagbnl,e 
i      n| s                      ^e
rt_or_assIn file included from is2geography/linear-referencing.ccg:n2_:
hIn file included from is2geography/linear-referencing.hn:t4_:
iIn file included from ms2geography/geography.hp:l4,:
 In file included from &../src/s2/s2polygon.h&:,29 :
&In file included from &/usr/local/clang/include/absl/container/flat_hash_map.h,: 43f:
aIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hs:e19,:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :  ^59
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/btree_container.h::979511::3052::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    979511 |  |                      A B S L _ I N T E RCNoArLd_RAeTpT*R IaBbUsTlE__nCoAnPnTuUlRlE Dr_eBpY,( tchoinss)t) )C o r d z U p d a t e S c o p e &   s c o p e , 
\      
|                                    ^| 
                                                   ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/common.h241::3122::9 : note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_true' defined here

  241    | 31# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_utlrlu
e      (| i                     ^f
_satisfied, ...) if_satisfIn file included from is2geography/linear-referencing.cce:d2
:
      In file included from | s2geography/linear-referencing.h        ^:
4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2geography/coverings.cc982::239:
:In file included from  s2geography/coverings.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]6
:
In file included from s2geography/geography.h:  4982:
 | In file included from  ../src/s2/s2polygon.h : 34 :
vIn file included from o../src/s2/mutable_s2shape_index.hi:d30 :
AIn file included from p/usr/local/clang/include/absl/container/btree_map.hp:e67n:
d/usr/local/clang/include/absl/container/internal/btree_container.hT:r588e:e3T:o Iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
ined(C  o588r | d R eApB*S La_bIsNlT_EnRoNnAnLu_lXl( itnrseeer,t
_      o| r                                      ^_
as/usr/local/clang/include/absl/base/nullability.hs:i241g:n22,:  inote: nexpanded from macro 'absl_nonnull's
er  t241_ | o#rd_eafsisnieg na_bhsiln_tn_oinmnpull,l  &_&N,o n&n&u,l lf
a      l| s                     ^e
,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |       In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h :t4r:
uIn file included from e../src/s2/s2polygon.h,: 29c:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hs:t43_:
iIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.he:r19a:
tIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:(59h:
i/usr/local/clang/include/absl/strings/cord.hn:t984): 36A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INTE  R984N | A L _ C OvMoMiAd) ;A
p      p| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
dTr/usr/local/clang/include/absl/container/internal/btree_container.he:e511T:o47T:r enote: eexpanded from macro 'ABSL_INTERNAL_X'(
Cor  d511R | e p *   a b s l _ n oAnBnSuLl_lI NtTrEeReN,A LM_eAtThToRdIIBdUeTnEt_iCfAiPeTrU RmEeDt_hBoYd()t;h
i      s| )                                   ^)
) /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                              ^~~~o
nnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 590expanded from macro 'absl_nonnull':
3:   warning: 241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
#def  i590n | e   aAbBsSlL__nIoNnTnEuRlNlA L__NXo(ninnuslelr
t      _| o                     ^r
_assign, insertIn file included from _s2geography/linear-referencing.cco:r2_:
aIn file included from ss2geography/linear-referencing.hs:i4g:
nIn file included from _s2geography/geography.hh:i4n:
tIn file included from _../src/s2/s2polygon.hi:m29p:
lIn file included from ,/usr/local/clang/include/absl/container/flat_hash_map.h :&43&:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h&:&19,:
 In file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:u59e:
,/usr/local/clang/include/absl/strings/cord.h
:      988| :  ^37
: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]509
:52:   note: 988expanded from macro 'ABSL_INTERNAL_X' | 
      509v | o i d   P r e p e n dATBrSeLe_TIoNTTrEeReN(ACLo_rAdTRTeRpI*B UaTbEs_lC_AnPoTnUnRuElDl_ BtYr(eteh,i sM)e)t,h o d I d e n t i f i e r   m e t h o d ) ; 
        | \                                    ^

      | /usr/local/clang/include/absl/base/nullability.h                                                   ^:
241:22/usr/local/clang/include/absl/container/internal/common.h:: 31note: :expanded from macro 'absl_nonnull'9
:   note: 241macro 'ABSL_INTERNAL_IF_true' defined here | 
#de   f31i | n#ed eafbisnle_ nAoBnSnLu_lIlN T_ENRoNnAnLu_lIlF
_      t| r                     ^u
e(if_satisfied, In file included from .s2geography/linear-referencing.cc.:.2):
 In file included from is2geography/linear-referencing.hf:_4s:
aIn file included from ts2geography/geography.hi:s4f:
iIn file included from e../src/s2/s2polygon.hd:
29      :
| In file included from         ^/usr/local/clang/include/absl/container/flat_hash_map.h
:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2geography/coverings.cc
:2:
In file included from s2geography/coverings.h  :9896 | :
 In file included from  s2geography/geography.h : 4v:
oIn file included from i../src/s2/s2polygon.hd: 34P:
rIn file included from e../src/s2/mutable_s2shape_index.hp:e30n:
dIn file included from T/usr/local/clang/include/absl/container/btree_map.hr:e67e:
(/usr/local/clang/include/absl/container/internal/btree_container.hC:o590r:d3R:e pwarning: *'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
absl_  n590o | n n uAlBlS Lt_rIeNeT,E RMNeAtLh_oXd(Iidnesnetritf_ioerr_ amsestihgond,) ;i
n      s| e                              ^r
t_/usr/local/clang/include/absl/base/nullability.ho:r241_:a22s:s inote: gexpanded from macro 'absl_nonnull'n
_h  i241n | t#_diemfpiln,e  &a&b,s l&_&n,o ntnruulel, 
_      N| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nul  l591
 |        |                       ^ 
               false, const_iteratIn file included from os2geography/linear-referencing.ccr:(2h:
iIn file included from ns2geography/linear-referencing.ht:)4 :
AIn file included from Bs2geography/geography.hS:L4_:
IIn file included from N../src/s2/s2polygon.hT:E29R:
NIn file included from A/usr/local/clang/include/absl/container/flat_hash_map.hL:_43C:
OIn file included from M/usr/local/clang/include/absl/container/hash_container_defaults.hM:A19):
;In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

/usr/local/clang/include/absl/strings/cord.h:994:/usr/local/clang/include/absl/container/internal/btree_container.h30::509 :warning: 47type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_INTERNAL_X'  
994 |      509  | v o i d   C o p y T oA(BsStLd_:I:NsTtErRiNnAgL*_ AaTbTsRlI_BnUoTnEn_uClAlP TdUsRtE)D _cBoYn(stth i{s
)      )| ,                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                              ^~~~_
nonnull /usr/local/clang/include/absl/container/internal/btree_container.h_:N590o:n3n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      | /usr/local/clang/include/absl/container/internal/btree_container.h                     ^:
511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABIn file included from Ss2geography/linear-referencing.ccL:_2I:
NIn file included from Ts2geography/linear-referencing.hE:R4N:
AIn file included from Ls2geography/geography.h_:A4T:
TIn file included from R../src/s2/s2polygon.hI:B29U:
TIn file included from E/usr/local/clang/include/absl/container/flat_hash_map.h_:C43A:
PIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hU:R19E:
DIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hB:Y59(:
t/usr/local/clang/include/absl/strings/cord.hh:i999s:)28):)  warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      999  |          v o i d   C o p y T o A\r
r      a| y                                                   ^(
ch/usr/local/clang/include/absl/container/internal/common.ha:r32*: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
no   n32n | u#ldle fdisnte)  AcBoSnLs_tI;N
T      E| R                           ^N
AL/usr/local/clang/include/absl/base/nullability.h_:I241F:_22f:a lnote: sexpanded from macro 'absl_nonnull'e
(i  f241_ | s#adteifsifineed ,a b.s.l._)n o_n_nVuAl_lA R_GNSo_n_n
u      l| l        ^

      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 | In file included from  s2geography/coverings.cc : 2 :
vIn file included from os2geography/coverings.hi:d6 :
sIn file included from es2geography/geography.ht:_4c:
oIn file included from r../src/s2/s2polygon.hd:z34_:
iIn file included from n../src/s2/mutable_s2shape_index.hf:o30(:
cIn file included from o/usr/local/clang/include/absl/container/btree_map.hr:d67_:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:t592e:r3n:a lwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
Cord  z592I | n f oA*B SaLb_sIlN_TnEoRnNnAuLl_lX (cionrsdezr_ti_nofro_)a s{s
i      g| n                                                  ^,
 i/usr/local/clang/include/absl/base/nullability.hn:s241e:r22t:_ onote: rexpanded from macro 'absl_nonnull'_
as  s241i | g#nd_ehfiinnte_ iambpsll,_ n&o&n,n u&l&l,  _tNrounen,u
l      l| 
  ^      
|                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #definIn file included from es2geography/linear-referencing.cc :A2B:
SIn file included from Ls2geography/linear-referencing.h_:I4N:
TIn file included from Es2geography/geography.hR:N4A:
LIn file included from _../src/s2/s2polygon.hI:F29_:
tIn file included from r/usr/local/clang/include/absl/container/flat_hash_map.hu:e43(:
iIn file included from f/usr/local/clang/include/absl/container/hash_container_defaults.h_:s19a:
tIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:59:
f/usr/local/clang/include/absl/strings/cord.hi:e1049d:,56 :. .warning: .type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 if_ s1049a | t i ssftiaetdi
c       | b        ^o
ol GetFlatAux(absIn file included from ls2geography/coverings.cc:::2c:
oIn file included from rs2geography/coverings.hd:_6i:
nIn file included from ts2geography/geography.he:r4n:
aIn file included from l../src/s2/s2polygon.h:::34C:
oIn file included from r../src/s2/mutable_s2shape_index.hd:R30e:
pIn file included from */usr/local/clang/include/absl/container/btree_map.h :a67b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_592n:o3n:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
 rep,  
592       | |                                                         ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241X | (#idnesfeirnte_ oarb_sals_sniognnn,u liln s_eNrotn_nourl_la
s      s| i                     ^g
n_hint_impl, In file included from &s2geography/linear-referencing.cc&:,2 :
&In file included from &s2geography/linear-referencing.h,: 4t:
rIn file included from us2geography/geography.he:,4
:
      In file included from | ../src/s2/s2polygon.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  :59343 | :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 /usr/local/clang/include/absl/strings/cord.h : 1050 : 45 :   warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue,  1050c | o n s t _ i t e r a t o r ( h i n t )   A B S L _ IaNbTsElR:N:AsLt_rCiOnMgM_Av)i;e
w      *|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bsl/usr/local/clang/include/absl/container/internal/btree_container.h_:n509o:n47n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X' 
fra  g509m | e n t ) ; 
        |                                              ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | A#TdTeRfIiBnUeT Ea_bCsAlP_TnUoRnEnDu_lBlY (_tNhoinsn)u)l, l 
        |                       ^ 
                  \
      |                                               ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h/usr/local/clang/include/absl/container/internal/btree_container.h::4592:
:In file included from 3s2geography/geography.h:: 4warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2polygon.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
511In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h52::43 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h511: | 59 :
 /usr/local/clang/include/absl/strings/cord.h : 1054 : 37 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL _1054I | N T E R N A La_bAsTlT:R:IcBoUrTdE__iCnAtPeTrUnRaElD:_:BCYo(rtdhRiesp)*) )a b s l _ n o n n u l l   r e p , 
        |                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                                                   ^ 
note: /usr/local/clang/include/absl/container/internal/common.hexpanded from macro 'absl_nonnull':
31:  9241: |  #note: dmacro 'ABSL_INTERNAL_IF_true' defined heree
fin   e31  | a#bdself_innoen nAuBlSlL __INNoTnEnRuNlAlL
_      I| F                     ^_
true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2In file included from :
s2geography/coverings.ccIn file included from :s2geography/linear-referencing.h2::
4In file included from :
s2geography/coverings.hIn file included from :s2geography/geography.h6::
4In file included from :
s2geography/geography.hIn file included from :../src/s2/s2polygon.h4::
29In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h34::
43In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h30::
19In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h67::
59/usr/local/clang/include/absl/container/internal/btree_container.h:
:/usr/local/clang/include/absl/strings/cord.h592::10613::34 :warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   5921061 |  |     AvBoSiLd_ ICNoTpEyRTNoAALr_rXa(yiSnlsoewrPta_tohr(_cahsasri*g na,b siln_sneorntn_uolrl_ adsssti)g nc_ohnisntt;_
i      m| p                                 ^l
, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22&:& ,note:  expanded from macro 'absl_nonnull't
ru  e241, | 
#      d| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
ine   593a | b s l _ n o n n u l l   _ N o n n u ltlr
u      e| ,                     ^ 
const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))       In file included from  s2geography/linear-referencing.cc : 2 :
 In file included from  s2geography/linear-referencing.h : 4 :
 In file included from  s2geography/geography.h : 4 :
 In file included from  ../src/s2/s2polygon.h :\29
:
      In file included from | /usr/local/clang/include/absl/container/flat_hash_map.h                                              ^~~~:
43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h: 6181079: | 64 :  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l::  c618o | r d _AiBnStLe_rInNaTlE:R:NCAoLr_dXR(etpr*y _aebmspll_ancoen,n utlrly _empTlaakceeR_eipm(p)l ,& &c;o
n      s| t                                ^ 
&,/usr/local/clang/include/absl/base/nullability.h :f241a:l22s:e )note: ;expanded from macro 'absl_nonnull'

      |                                                                  ^241
 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e596f:i9n:e  note: amacro 'ABSL_INTERNAL_X' defined hereb
sl_  n596o | n#nduelfli n_eN oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl/usr/local/clang/include/absl/container/internal/btree_container.h_:n618u:l3l:a bwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
 Ma  y618b | e G eAtBCSrLc_CIoNrTdESRtNaAtLe_(X)( tcroyn_setm;p
l      a| c                                    ^e
, /usr/local/clang/include/absl/base/nullability.ht:r257y:_23e:m pnote: lexpanded from macro 'absl_nullable'a
ce  _257i | m#pdle,f icnoen satb s&l,_ nfualllsaeb)l;e
       _| N  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.ha:b611l:e52
:       | note:                       ^expanded from macro 'ABSL_INTERNAL_X'

  611 |           ABSL_INTERNAL_ATTRIBIn file included from Us2geography/linear-referencing.ccT:E2_:
CIn file included from As2geography/linear-referencing.hP:T4U:
RIn file included from Es2geography/geography.hD:_4B:
YIn file included from (../src/s2/s2polygon.ht:h29i:
sIn file included from )/usr/local/clang/include/absl/container/flat_hash_map.h):,43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 /usr/local/clang/include/absl/strings/cord.h : 1120 : 30 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1120  | \ 
       v| o                                                   ^i
d /usr/local/clang/include/absl/container/internal/common.hC:o32p:y9T:o Anote: rmacro 'ABSL_INTERNAL_IF_false' defined herer
ayI   m32p | l#(dcehfairn*e  aAbBsSlL__nIoNnTnEuRlNlA Ld_sItF)_ fcaolnsset(;i
f      _| s                             ^a
ti/usr/local/clang/include/absl/base/nullability.hs:f241i:e22d:,  note: .expanded from macro 'absl_nonnull'.
.)   241_ | _#VdAe_fAiRnGeS _a_b
s      l| _        ^n
onnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |          In file included from  s2geography/linear-referencing.ccA:B2S:
LIn file included from _s2geography/linear-referencing.hI:N4T:
EIn file included from Rs2geography/geography.hN:A4L:
_In file included from A../src/s2/s2polygon.hT:T29R:
IIn file included from B/usr/local/clang/include/absl/container/flat_hash_map.hU:T43E:
_In file included from C/usr/local/clang/include/absl/container/hash_container_defaults.hA:P19T:
UIn file included from R/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:D59_:
BY/usr/local/clang/include/absl/strings/cord.h(:t1140h:i49s:) )warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        1140  |                                   \ 
        |                                                ^~~~ 
         CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::626241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

    241626 |  | # d eAfBiSnLe_ IaNbTsElR_NnAoLn_nXu(ltlr y__Neomnpnlualcle
,       | t                     ^r
y_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        In file included from  s2geography/linear-referencing.cc :\2
:
      In file included from | s2geography/linear-referencing.h                                                   ^:
4:
In file included from /usr/local/clang/include/absl/container/internal/common.hs2geography/geography.h::324::
9In file included from :../src/s2/s2polygon.h :note: 29macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:   4332:
 | In file included from #/usr/local/clang/include/absl/container/hash_container_defaults.hd:e19f:
iIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.he: 59A:
B/usr/local/clang/include/absl/strings/cord.hS:L1159_:I17N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_ I1159F | _ifnallisnee( iCfo_rsdaRteips*f iaebds,l _.n.o.n)n u_l_lV AN_eAwREGxSt_e_r
n      a| l        ^R
ep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/coverings.cc:2:
In file included from s2geography/coverings.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTIn file included from Rs2geography/linear-referencing.ccI:B2U:
TIn file included from Es2geography/linear-referencing.h_:C4A:
PIn file included from Ts2geography/geography.hU:R4E:
DIn file included from _../src/s2/s2polygon.hB:Y29(:
tIn file included from h/usr/local/clang/include/absl/container/flat_hash_map.hi:s43):
)In file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 /usr/local/clang/include/absl/strings/cord.h : 1183 : 47 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1183  |     \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e f i n e   A B S L _ ICNoTrEdRRNeApL*_ IaFb_stlr_uneu(lilfa_bslaet irsefpi)e
d      ,|                                                ^.
..)/usr/local/clang/include/absl/base/nullability.h :i257f:_23s:a tnote: iexpanded from macro 'absl_nullable's
fi  e257d | 
#      d| e        ^f
ine absl_nullableIn file included from  s2geography/coverings.cc_:N2u:
lIn file included from ls2geography/coverings.ha:b6l:
eIn file included from 
s2geography/geography.h      :| 4                      ^:

In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::Inline/usr/local/clang/include/absl/container/internal/btree_container.hR:e638p:*63 :a bwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
_non  n638u | l l   r h s )c o{n
s      t|                                                     ^k
ey_/usr/local/clang/include/absl/base/nullability.ha:r241g:<22K:>  note: &expanded from macro 'absl_nonnull'k
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his))
      |                                                               ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() /usr/local/clang/include/absl/container/internal/btree_container.hc:o648n:s7t:  {warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                    ^
  648/usr/local/clang/include/absl/base/nullability.h | : 257 : 23 :   note: texpanded from macro 'absl_nullable'h
is)) A  B257S | L#_dAeTfTiRnIeB UaTbEs_lL_InFuElTlIaMbEl_eB O_UNNuDl l{a
b      l| e      ^~~~

      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::In file included from Cs2geography/distance.cco:r2d:
RIn file included from es2geography/distance.hp:*4 :
aIn file included from bs2geography/geography.hs:l4_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :t41r:
eIn file included from e../src/s2/s2cell_id.h): 43{:

In file included from       ../src/s2/s1angle.h| :                            ^28
:
In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
  241/usr/local/clang/include/absl/status/internal/status_internal.h | :#119d:e14f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _119n | o n nSutlalt u_sNRoenpn*u lalb
s      l| _                     ^n
onnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4In file included from :
s2geography/linear-referencing.ccIn file included from :../src/s2/s2polygon.h2::
34In file included from :
s2geography/linear-referencing.hIn file included from :../src/s2/mutable_s2shape_index.h4::
41In file included from :
s2geography/geography.hIn file included from :../src/s2/s2cell_id.h4::
43In file included from :
../src/s2/s2polygon.hIn file included from :../src/s2/s1angle.h29::
28In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :../src/s2/s2point.h43::
27In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2coder.h19::
23In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/status/status.h59::
67:
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/status/internal/status_internal.h1530::12555::14 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1251530 |  |  i nSltianteu sCRoerpd*: :aCbhsuln_knIotnenrualtlo rC:l:oCnheuAnnkdIUtnerreaft(o
r      (| c             ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241C:o22r:d *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  caobrsdl)_ n{o
n      n| u                                                      ^l
l _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _NonnullIn file included from 
s2geography/distance.cc      :| 2                     ^:

In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/geography.cc:2:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/distance.cc:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_inteIn file included from rs2geography/predicates.ccn:a2l:
_In file included from cs2geography/predicates.hh:e4c:
kIn file included from _../src/s2/s2boolean_operation.ho:p26_:
rIn file included from e../src/s2/s2builder.hs:u31l:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h\:
57      :
| In file included from                      ^/usr/local/clang/include/absl/hash/hash.h
:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/base/nullability.h::79257:
:23/usr/local/clang/include/absl/base/internal/endian.h:: 250:note: 36expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #de  f250i | nien laibnsel _uniunltl1a6b_lte  L_oNaudl1l6a(bcloen
s      t|                        ^v
oid* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2geography/distance.cc
:2:
In file included from s2geography/distance.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #defineIn file included from  s2geography/predicates.ccS:22_:
CIn file included from Hs2geography/predicates.hE:C4K:
_In file included from N../src/s2/s2boolean_operation.hE: 26C:
HIn file included from E../src/s2/s2builder.hC:K31_:
NIn file included from E/usr/local/clang/include/absl/container/flat_hash_set.h
:      43| :
                    ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/log/check.h:
:In file included from 120/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::357::
 In file included from /usr/local/clang/include/absl/hash/hash.hnote: :expanded from macro 'CHECK_NE'89
:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:  79120:
 |  /usr/local/clang/include/absl/base/internal/endian.h :A254B:S27L:_ Lwarning: Otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G
_IN  T254E | RiNnAlLi_nCeH EvCoKi_dN ES_tIoMrPeL1(6((vvaoli1d)*,  a#bvsall_1n,o n(nvualll2 )p,,  #uvianlt21)6
_      t|    ^v
) /usr/local/clang/include/absl/log/internal/check_impl.h{:
51      :| 3                          ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL':
241:22:    51 | note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#LdOeGf_iInNeT EaRbNsAlL__nCoHnEnCuKl_lO P_(NCohnencukl_lN
E      ,|                       ^!
=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   AIn file included from Bs2geography/predicates.ccS:L2_:
LIn file included from Os2geography/predicates.hG:_4I:
NIn file included from T../src/s2/s2boolean_operation.hE:R26N:
AIn file included from L../src/s2/s2builder.h_:C31H:
EIn file included from C/usr/local/clang/include/absl/container/flat_hash_set.hK:(43::
:In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:s19l:
:In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:m57p:
lIn file included from i/usr/local/clang/include/absl/hash/hash.hc:i89t:
_In file included from c/usr/local/clang/include/absl/hash/internal/hash.ha:s79t:
</usr/local/clang/include/absl/base/internal/endian.hc:o258n:s36t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r*   a258b | siln_lnionnen uuliln>t(3 2 _ t   L\o
a      d| 3                                                            ^2
(c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :v onote: iexpanded from macro 'absl_nonnull'd
*   a241b | s#ld_enfoinnneu lalb spl)_ n{o
n      n| u                                   ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_asIn file included from ss2geography/predicates.cci:g2n:
_In file included from is2geography/predicates.hm:p4l:
,In file included from  ../src/s2/s2boolean_operation.hc:o26n:
sIn file included from t../src/s2/s2builder.h&:,31 :
cIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:s43t:
&In file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
  ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/hash/hash.h133::8952:
:In file included from  /usr/local/clang/include/absl/hash/internal/hash.h:note: 90expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/strings/string_view.h:53:  54: 133 | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
        53  |  c oAnBsStLe_xIpNrT EsRtNrAiLn_gA_TvTiReIwB UNTuEl_lCSAaPfTeUSRtErDi_nBgYV(itehwi(sc)o)n,s t   c h a r *   a b s l _ n u l l a b l e   p )   {\

            | |                                                      ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h:257:23: /usr/local/clang/include/absl/container/internal/common.h:note: 32expanded from macro 'absl_nullable':
9:   257note:  | macro 'ABSL_INTERNAL_IF_false' defined here#
def   i32n | e# daebfsiln_en uAlBlSaLb_lIeN T_ENRuNlAlLa_bIlFe_
f      a| l                      ^s
e(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from 693s2geography/linear-referencing.h warning:s4 generated:
.
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from In file included from s2geography/linear-referencing.hs2geography/predicates.cc::42:
:
In file included from In file included from s2geography/geography.hs2geography/predicates.h::44:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2boolean_operation.h::3426:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2builder.h::3031:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/flat_hash_set.h::6743:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h592::193:
:In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:warning: 59'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from   /usr/local/clang/include/absl/crc/internal/crc_cord_state.h592: | 23 :
 In file included from A/usr/local/clang/include/absl/crc/crc32c.hB:S32L:
_In file included from I/usr/local/clang/include/absl/strings/str_format.hN:T84E:
RIn file included from N/usr/local/clang/include/absl/strings/internal/str_format/bind.hA:L24_:
XIn file included from (/usr/local/clang/include/absl/container/inlined_vector.hi:n56s:
eIn file included from r/usr/local/clang/include/absl/container/internal/inlined_vector.ht:_35o:
r_/usr/local/clang/include/absl/types/span.ha:s212s:i22g:n ,warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i
nser  t212_ | o r _uassisnigg np_ohiinntte_ri m=p lT,*  &a&b,s l&_&n,u ltlraubei,l
i      t| y  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
unk  n593o | w n ; 
        |                       ^ 
   /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown't
rue  ,289  | c#odnesfti_niet earbastlo_rn(uhlilnatb)i lAiBtSyL__uInNkTnEoRwNnA L__NCuOlMlM_Au)n;s
p      e| c                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
fie/usr/local/clang/include/absl/container/internal/btree_container.hd:
511      :| 47                                 ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  511 |       In file included from  s2geography/predicates.cc : 2 :
AIn file included from Bs2geography/predicates.hS:L4_:
IIn file included from N../src/s2/s2boolean_operation.hT:E26R:
NIn file included from A../src/s2/s2builder.hL:_31A:
TIn file included from T/usr/local/clang/include/absl/container/flat_hash_set.hR:I43B:
UIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hE:_19C:
AIn file included from P/usr/local/clang/include/absl/container/internal/hash_function_defaults.hT:U59R:
EIn file included from D/usr/local/clang/include/absl/strings/cord.h_:B82Y:
(In file included from t/usr/local/clang/include/absl/crc/internal/crc_cord_state.hh:i23s:
)In file included from )/usr/local/clang/include/absl/crc/crc32c.h): 32 :
 In file included from  /usr/local/clang/include/absl/strings/str_format.h : 84 :
 In file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 24 :
 In file included from  /usr/local/clang/include/absl/container/inlined_vector.h : 56 :
 In file included from  /usr/local/clang/include/absl/container/internal/inlined_vector.h : 35 :
 /usr/local/clang/include/absl/types/span.h :\213
:      34| :                                              ^~~~ 
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733/usr/local/clang/include/absl/container/internal/btree_container.h::31621:: 3:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
    733621 |  | c o nAsBtSeLx_pIrN TSEpRaNnA<LT_>X (Mtarkye_Sepmapnl(aTc*e ,a btsrly__neumlpllaabclee_ ipmtprl ,A B&S&L,_ AtTrTuReI)B;U
T      E| _  ^L
IF/usr/local/clang/include/absl/container/internal/btree_container.hE:T611I:M52E:_ Bnote: Oexpanded from macro 'ABSL_INTERNAL_X'U
ND,  
611       | |                                ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nAeT TaRbIsBlU_TnEu_lClAaPbTlUeR E_DN_uBlYl(atbhlies
)      )| ,                      ^ 
                         \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERIn file included from Ns2geography/predicates.ccA:L2_:
IIn file included from Fs2geography/predicates.h_:t4r:
uIn file included from e../src/s2/s2boolean_operation.h(:i26f:
_In file included from s../src/s2/s2builder.ha:t31i:
sIn file included from f/usr/local/clang/include/absl/container/flat_hash_set.hi:e43d:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h.:19.:
.In file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :i59f:
_In file included from s/usr/local/clang/include/absl/strings/cord.ha:t82i:
sIn file included from f/usr/local/clang/include/absl/crc/internal/crc_cord_state.hi:e23d:

In file included from       /usr/local/clang/include/absl/crc/crc32c.h| :        ^32
:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
In file included from /usr/local/clang/include/absl/types/span.hs2geography/linear-referencing.cc::7392::
21In file included from :s2geography/linear-referencing.h :4warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2geography/geography.h
:4:
In file included from ../src/s2/s2polygon.h:  34739:
 | In file included from S../src/s2/mutable_s2shape_index.hp:a30n:
<In file included from T/usr/local/clang/include/absl/container/btree_map.h>: 67M:
a/usr/local/clang/include/absl/container/internal/btree_container.hk:e621S:p3a:n (warning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*
 absl  _621n | u l lAaBbSlLe_ IbNeTgEiRnN AALB_SXL(_tArTyT_ReImBpUlTaEc_eL,I FtErTyI_MeEm_pBlOaUcNeD_,i
m      p| l                    ^,
 &/usr/local/clang/include/absl/base/nullability.h&:,257 :t23r:u enote: )expanded from macro 'absl_nullable';

      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~257
 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f611i:n47e:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  u611l | l a b l e   _ N u l lAaBbSlLe_
I      N| T                      ^E
RNAL_ATTRIBUTEIn file included from _s2geography/predicates.ccC:A2P:
TIn file included from Us2geography/predicates.hR:E4D:
_In file included from B../src/s2/s2boolean_operation.hY:(26t:
hIn file included from i../src/s2/s2builder.hs:)31):
,In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h\:
32      :
| In file included from                                               ^~~~/usr/local/clang/include/absl/strings/str_format.h
:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),         In file included from  s2geography/predicates.cc : 2 :
 In file included from  s2geography/predicates.h : 4 :
 In file included from  ../src/s2/s2boolean_operation.h : 26 :
 In file included from  ../src/s2/s2builder.h :\31
:
      In file included from | /usr/local/clang/include/absl/container/flat_hash_set.h                                                   ^:
43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/internal/common.h::1932:
:In file included from 9/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/strings/cord.h
:82:
In file included from    /usr/local/clang/include/absl/crc/internal/crc_cord_state.h32: | 23#:
dIn file included from e/usr/local/clang/include/absl/crc/crc32c.hf:i32n:
eIn file included from  /usr/local/clang/include/absl/strings/str_format.hA:B84S:
LIn file included from _/usr/local/clang/include/absl/strings/internal/str_format/bind.hI:N24T:
EIn file included from R/usr/local/clang/include/absl/container/inlined_vector.hN:A56L:
_In file included from I/usr/local/clang/include/absl/container/internal/inlined_vector.hF:_35f:
a/usr/local/clang/include/absl/types/span.hl:s794e:(8i:f _warning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
tisf  i794e | d ,   . .T.*)  a_b_sVlA__nAuRlGlSa_b_l
e       | p        ^t
r ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.hIn file included from :s2geography/linear-referencing.cc31::
2In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :s2geography/linear-referencing.h43::
4In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :s2geography/geography.h19::
4In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/s2polygon.h59::
34In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/mutable_s2shape_index.h82::
30In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h23::
67In file included from :
/usr/local/clang/include/absl/crc/crc32c.h:/usr/local/clang/include/absl/container/internal/btree_container.h32::
624In file included from :/usr/local/clang/include/absl/strings/str_format.h3::84 :
In file included from warning: /usr/local/clang/include/absl/strings/internal/str_format/bind.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]24
:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56  :
624In file included from  | /usr/local/clang/include/absl/container/internal/inlined_vector.h : 35A:
B/usr/local/clang/include/absl/types/span.hS:L799_:I32N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL_  X799( | tSrpya_ne<mcpolnascte ,T >t rMya_keemCpolnascteS_phainn(tT_*i mapbls,l _cnounlslta b&l,e  tbreugei,n

            | |   ^                               ^

/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::611257::5223::  note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'absl_nullable'

  257   | 611# | d e f i n e   a b s lA_BnSuLl_lIaNbTlEeR N_ANLu_lAlTaTbRlIeB
U      T| E                      ^_
CAPTURED_BY(In file included from ts2geography/predicates.cch:i2s:
)In file included from )s2geography/predicates.h,: 4 :
 In file included from  ../src/s2/s2boolean_operation.h : 26 :
 In file included from  ../src/s2/s2builder.h : 31 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59\:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                                                   ^82
:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/container/internal/common.h::2331:
:In file included from 9/usr/local/clang/include/absl/crc/crc32c.h:: 32:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/strings/str_format.h
:84:
In file included from    /usr/local/clang/include/absl/strings/internal/str_format/bind.h31: | 24#:
dIn file included from e/usr/local/clang/include/absl/container/inlined_vector.hf:i56n:
eIn file included from  /usr/local/clang/include/absl/container/internal/inlined_vector.hA:B35S:
L/usr/local/clang/include/absl/types/span.h_:I801N:T32E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_IF  _801t | r u e ( i f _ s a t i s f i e d ,   . . . )   i f _ s a tTi*s faibesdl
_      n| u        ^l
lable end) noexcIn file included from es2geography/linear-referencing.ccp:t2 :
{In file included from 
s2geography/linear-referencing.h      :| 4                               ^:

In file included from s2geography/geography.h:/usr/local/clang/include/absl/base/nullability.h4::
257In file included from :../src/s2/s2polygon.h23::34 :
In file included from note: ../src/s2/mutable_s2shape_index.hexpanded from macro 'absl_nullable':
30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h257: | 67#:
d/usr/local/clang/include/absl/container/internal/btree_container.he:f624i:n3e:  awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
l_nul  l624a | b l eA B_SNLu_lIlNaTbElReN
A      L| _                      ^X
(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatI693m warningpsl generated<.
Args...>(s), "bad format trap")))
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/encoded_s2cell_id_vector.cc -o s2/encoded_s2cell_id_vector.o
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/linear-referencing.cc:2:
In file included from s2geography/linear-referencing.h:4:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabilitIn file included from ys2geography/predicates.cc_:u2n:
kIn file included from ns2geography/predicates.ho:w4n:
 In file included from _../src/s2/s2boolean_operation.hN:u26l:
lIn file included from _../src/s2/s2builder.hu:n35s:
pIn file included from e../src/s2/id_set_lexicon.hc:i28f:
iIn file included from e../src/s2/base/logging.hd:
21      :
| In file included from                                  ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: In file included from warning: s2/encoded_s2cell_id_vector.cc:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26  :
506/usr/local/clang/include/absl/types/span.h | :A213B:S34L:_ Lwarning: Otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]G
_IN  T213E | R N AuLs_iCnHgE CcKo_nOsPt__IpMoPiLn(tCehre c=k _cGoEn,s t> =T)*
       a| b^s
l_n/usr/local/clang/include/absl/log/internal/check_op.hu:l488l:a32b:i lnote: iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
y_un  k488n | o w ni;n
l      i| n                                 ^e
 c/usr/local/clang/include/absl/base/nullability.ho:n289s:t34e:x pnote: rexpanded from macro 'absl_nullability_unknown' 
co  n289s | t# dcehfairn*e  aabbssll__nnuullllaabbliel intaym_eu#n#kInmopwln(  _ N u l l _ u n s p e c i f i e d 
       \| 
                                 ^      
|                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:26:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
693 warnings generated.
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
693 warnings generated.
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/encoded_s2point_vector.cc -o s2/encoded_s2point_vector.o
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...693) warning si generatedf.
_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, In file included from &s2/encoded_s2cell_id_vector.cc&:,18 :
cIn file included from o../src/s2/encoded_s2cell_id_vector.hn:s27t:
 In file included from &../src/s2/util/coding/coder.h,:
36      :
| In file included from   ^../src/s2/base/casts.h
:34:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/log/log.h509::20952:
:In file included from  /usr/local/clang/include/absl/log/internal/log_impl.hnote: :expanded from macro 'ABSL_INTERNAL_X'20
:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:  63509:
 | In file included from  /usr/local/clang/include/absl/log/internal/vlog_config.h : 40 :
  /usr/local/clang/include/absl/strings/string_view.h : 53 : 54A:B Swarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
INTERN   A53L | _cAoTnTsRtIeBxUpTrE _sCtArPiTnUgR_EvDi_eBwY (NtuhlilsS)a)f,e S t r i n g V i e w ( c o n s t   c h a r *   a\b
s      l| _                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl:a32b:l9e:  pnote: )macro 'ABSL_INTERNAL_IF_false' defined here 
{
         | 32                                                     ^ | 
#def/usr/local/clang/include/absl/base/nullability.hi:n257e: 23A:B Snote: Lexpanded from macro 'absl_nullable'_
INT  E257R | N#AdLe_fIiFn_ef aalbssel(_infu_lslaatbilsef i_eNdu,l l.a.b.l)e 
_      _| V                      ^A
_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))        In file included from  s2/encoded_s2cell_id_vector.cc : 18 :
 In file included from  ../src/s2/encoded_s2cell_id_vector.h : 27 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h\:
34      :
| In file included from                                                    ^/usr/local/clang/include/absl/log/log.h
:209/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 32/usr/local/clang/include/absl/log/internal/log_impl.h::920::
 In file included from note: /usr/local/clang/include/absl/log/absl_vlog_is_on.hmacro 'ABSL_INTERNAL_IF_false' defined here:
63:
   /usr/local/clang/include/absl/log/internal/vlog_config.h32: | 49#:d37e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ABS   L49_ | IiNnTtE RRNeAgLi_sItFe_rfAanldsIen(iitfi_aslaitzies(fViLeodg,S i.t.e.*)  a_b_sVlA__nAoRnGnSu_l_l
       v| )        ^;

      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(coIn file included from ns2geography/predicates.ccs:t2 :
cIn file included from hs2geography/predicates.ha:r4*:
 In file included from a../src/s2/s2boolean_operation.hb:s26l:
_In file included from n../src/s2/s2builder.ho:n36n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30f:
)In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                                          ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/base/nullability.h579::2413::22 :warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]note: 
expanded from macro 'absl_nonnull'
    241579 |  | # d eAfBiSnLe_ IaNbTsElR_NnAoLn_nXu(liln s_eNrotn_nourl_la
s      s| i                     ^g
n, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIn file included from Is2/encoded_s2cell_id_vector.ccB:U18T:
EIn file included from _../src/s2/encoded_s2cell_id_vector.hC:A27P:
TIn file included from U../src/s2/util/coding/coder.hR:E36D:
_In file included from B../src/s2/base/casts.hY:(34t:
hIn file included from i/usr/local/clang/include/absl/log/log.hs:)209):
,In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 96 : 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        96\ | 
        | f                                                   ^r
ie/usr/local/clang/include/absl/container/internal/common.hn:d32 :i9n:t  note: lmacro 'ABSL_INTERNAL_IF_false' defined hereo
g_   i32n | t#edrenfailn:e: RAeBgSiLs_tIeNrTAEnRdNIAnLi_tIiFa_lfiazles(eV(Liofg_Ssiattei*s faibesdl,_ n.o.n.n)u l_l_ VvA)_;A
R      G| S                                                           ^_
_
      /usr/local/clang/include/absl/base/nullability.h| :        ^241
:22: note: expanded from macro 'absl_nonnull'
  In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from 241../src/s2/s2boolean_operation.h | :#26d:
eIn file included from f../src/s2/s2builder.hi:n36e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l579 :_3N:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll
        | 579                     ^ | 
  ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |         In file included from  s2/encoded_s2cell_id_vector.cc :A18B:
SIn file included from L../src/s2/encoded_s2cell_id_vector.h_:I27N:
TIn file included from E../src/s2/util/coding/coder.hR:N36A:
LIn file included from _../src/s2/base/casts.hA:T34T:
RIn file included from I/usr/local/clang/include/absl/log/log.hB:U209T:
EIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hC:A20P:
TIn file included from U/usr/local/clang/include/absl/log/absl_vlog_is_on.hR:E63D:
_B/usr/local/clang/include/absl/log/internal/vlog_config.hY:(119t:h15i:s )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
      119  |      c o n s t   c h a r *   a b s l _\n
o      n| n                                              ^~~~u
ll const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogIn file included from Ss2geography/predicates.cci:t2e:
*In file included from  s2geography/predicates.ha:b4s:
lIn file included from _../src/s2/s2boolean_operation.hn:u26l:
lIn file included from a../src/s2/s2builder.hb:l36e:
 In file included from S../src/s2/mutable_s2shape_index.he:t30V:
MIn file included from o/usr/local/clang/include/absl/container/btree_map.hd:u67l:
e/usr/local/clang/include/absl/container/internal/btree_container.hL:i588s:t3H:e awarning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]F
orT  e588s | t O nAlByS(L
_      I| N          ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A257L:_23X:( inote: nexpanded from macro 'absl_nullable's
er  t257_ | o#rd_eafsisnieg na,b siln_sneurltl_aobrl_ea s_sNiuglnl_ahbilnet
_      i| m                      ^p
l, &&, &In file included from &s2/encoded_s2cell_id_vector.cc,: 18f:
aIn file included from l../src/s2/encoded_s2cell_id_vector.hs:e27,:

In file included from       ../src/s2/util/coding/coder.h| :  ^36
:
In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/container/internal/btree_container.h::34509:
:In file included from 52/usr/local/clang/include/absl/log/log.h:: 209note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:20:
  In file included from 509/usr/local/clang/include/absl/log/absl_vlog_is_on.h | : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 158 : 15 :   warning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B
SL  _158I | N T E R NVALLo_gASTiTtReI*B UaTbEs_lC_AnPuTlUlRaEbDl_eB Yv()t;h
i      s| )              ^)
, /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b\s
l      _| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.ha:b32l:e9 :_ Nnote: umacro 'ABSL_INTERNAL_IF_false' defined herel
la   b32l | e#
d      e| f                      ^i
ne ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:4:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2geography/predicates.cc:2:
In file included from s2geography/predicates.h:6:
In file included from s2geography/geography.h:4:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:25:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:28:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
693 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/encoded_s2shape_index.cc -o s2/encoded_s2shape_index.o
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
693 warnings generated.
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(sIn file included from ts2/encoded_s2cell_id_vector.ccd::18::
oIn file included from s../src/s2/encoded_s2cell_id_vector.ht:r29e:
aIn file included from m../src/s2/s2cell_id.h&: 43(:
*In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27nu:
lIn file included from l../src/s2/s2coder.h :m23):
(In file included from s/usr/local/clang/include/absl/status/status.ht:d67::
:In file included from o/usr/local/clang/include/absl/status/internal/status_internal.hs:t29r:
ea/usr/local/clang/include/absl/strings/cord.hm:&109 :o53s:) )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                          ^
  /usr/local/clang/include/absl/base/nullability.h109: | 241v:o22i:d  note: Cexpanded from macro 'absl_nonnull'o
py  C241o | r#ddTeofSitnrei nagb(csoln_snto nCnourldl&  _sNrocn,n usltld
:      :| s                     ^t
ring* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/encoded_s2point_vector.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/encoded_s2point_vector.h241: | 27#:
dIn file included from e../src/s2/encoded_string_vector.hf:i30n:
eIn file included from  ../src/s2/util/coding/coder.ha:b36s:
lIn file included from _../src/s2/base/casts.hn:o34n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209 :
_In file included from N/usr/local/clang/include/absl/log/internal/log_impl.ho:n22n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l191
:      43| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operaIn file included from ts2/encoded_s2cell_id_vector.cco:r18<:
<In file included from (../src/s2/encoded_s2cell_id_vector.hs:t29d:
:In file included from :../src/s2/s2cell_id.hi:o43s:
_In file included from b../src/s2/s1angle.ha:s28e:
&In file included from  ../src/s2/s2point.h(:*27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hm:)29(:
s/usr/local/clang/include/absl/strings/cord.ht:d110:::55i:o swarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ase&   110o | sv)o)i;d
       A| p                                          ^p
en/usr/local/clang/include/absl/base/nullability.hd:C241o:r22d:T onote: Sexpanded from macro 'absl_nonnull't
ri  n241g | (#cdoenfsitn eC oarbds&l _snrocn,n usltld :_:Nsotnrniunlgl*
       a| b                     ^s
l_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/encoded_s2cell_id_vector.ccn:e18 :
aIn file included from b../src/s2/encoded_s2cell_id_vector.hs:l29_:
nIn file included from o../src/s2/s2cell_id.hn:n43u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     consIn file included from ts2/encoded_s2cell_id_vector.cc :w18c:
hIn file included from a../src/s2/encoded_s2cell_id_vector.hr:_29t:
*In file included from  ../src/s2/s2cell_id.ha:b43s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from &/usr/local/clang/include/absl/status/status.h :v67):
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                   ^:

/usr/local/clang/include/absl/strings/cord.h:730:/usr/local/clang/include/absl/base/nullability.h36::257 :23warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
  730   | 257  |  # d eefxipnlei caibts lC_hnaurlRlaanbglee( c_oNnusltl aCbolred
*       | a                      ^b
sl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/encoded_s2point_vector.cco:n18n:
uIn file included from l../src/s2/encoded_s2point_vector.hl: 27_:
NIn file included from o../src/s2/encoded_string_vector.hn:n30u:
lIn file included from l../src/s2/util/coding/coder.h
:      36| :
                     ^In file included from 
../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline In file included from Ls2/encoded_s2cell_id_vector.cco:g18M:
eIn file included from s../src/s2/encoded_s2cell_id_vector.hs:a29g:
eIn file included from &../src/s2/s2cell_id.h :L43o:
gIn file included from M../src/s2/s1angle.he:s28s:
aIn file included from g../src/s2/s2point.he::27::
oIn file included from p../src/s2/s2coder.he:r23a:
tIn file included from o/usr/local/clang/include/absl/status/status.hr:<67<:
(In file included from w/usr/local/clang/include/absl/status/internal/status_internal.hc:h29a:
r/usr/local/clang/include/absl/strings/cord.h_:t736*: 17a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nul  l736a | b l e   vc)o n{s
t       | C                                                   ^o
rd/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# dceofridn_e; 
a      b| s                ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull'_
Nu  l241l | a#bdleef
i      n| e                      ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/encoded_s2point_vector.cc795::1843:
:In file included from  ../src/s2/encoded_s2point_vector.h:warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/encoded_string_vector.h:30:
  In file included from 795../src/s2/util/coding/coder.h | : 36 :
fIn file included from r../src/s2/base/casts.hi:e34n:
dIn file included from  /usr/local/clang/include/absl/log/log.hv:o209i:
dIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hA:b22s:
l/usr/local/clang/include/absl/log/internal/log_message.hF:o340r:m46a:t Fwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
sh(a  b340s | l : :fCroiredn*d  avbosild_ nAobnsnluFlolr mcaotrFdl,u
s      h| (                                          ^S
tr/usr/local/clang/include/absl/base/nullability.hi:n241g:i22f:y Snote: iexpanded from macro 'absl_nonnull'n
k*   241a | b#sdle_fnionnen ualbls ls_innokn,n
u      l| l                                             ^ 
_No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from In file included from ../src/s2/util/coding/coder.hs2/encoded_s2cell_id_vector.cc::3618:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/encoded_s2cell_id_vector.h::3429:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h../src/s2/s2cell_id.h::20943:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s1angle.h::2228:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2point.h::39827::
11In file included from :../src/s2/s2coder.h :23warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
  In file included from 398/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 /usr/local/clang/include/absl/strings/cord.h :v929o:i26d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n929u | l l a b lveo icdo nSswta&p (vI)n;l
i      n| e          ^R
ep*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #rdhesf)i;n
e       | a                         ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 _  N241u | l#ldaeblfei
n      e|                        ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209In file included from :
s2/encoded_s2cell_id_vector.ccIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h18::
22In file included from :
../src/s2/encoded_s2cell_id_vector.h:/usr/local/clang/include/absl/log/internal/log_message.h29::
400In file included from :../src/s2/s2cell_id.h17::43 :
In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h  :40027 | :
 In file included from  ../src/s2/s2coder.h : 23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67 :
vIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hi:d29*:
 /usr/local/clang/include/absl/strings/cord.ha:b932s:l17_:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
abl  e932  | c o n s tc&o nvs)t; 
c      h| a                ^r
* a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:u lnote: lexpanded from macro 'absl_nullable'a
bl  e257  | d#adteaf(i)n ec oanbsstl;_
n      u| l                ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e257 :_23N:u lnote: lexpanded from macro 'absl_nullable'a
bl  e257
 |       #| d                      ^e
fine absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_dIn file included from as2/encoded_s2point_vector.cct:a18(:
sIn file included from i../src/s2/encoded_s2point_vector.hz:e27_:
tIn file included from  ../src/s2/encoded_string_vector.hn:)30;:
 In file included from  ../src/s2/util/coding/coder.h/:/36 :
WIn file included from r../src/s2/base/casts.hi:t34e:
 In file included from d/usr/local/clang/include/absl/log/log.ha:t209a:
 In file included from t/usr/local/clang/include/absl/log/internal/log_impl.ho: 22t:
h/usr/local/clang/include/absl/log/internal/log_message.he: 425r:e31s:u lwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |           ^
  /usr/local/clang/include/absl/base/nullability.h425: | 241 : 22L:o gnote: Mexpanded from macro 'absl_nonnull'e
ss  a241g | e#Fdaetfailn(ec aobnsslt_ ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^f
ile, int line) ABSL_ATTRIIn file included from Bs2/encoded_s2cell_id_vector.ccU:T18E:
_In file included from C../src/s2/encoded_s2cell_id_vector.hO:L29D:
;In file included from 
../src/s2/s2cell_id.h      :| 43                              ^:

In file included from ../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
n/usr/local/clang/include/absl/strings/cord.he: 937a:b35s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l937l |   _ N o nanbuslll:
:      c| o                     ^r
d_internal::CordRep* absl_nullable tIn file included from rs2/encoded_s2point_vector.cce:e18(:
)In file included from  ../src/s2/encoded_s2point_vector.hc:o27n:
sIn file included from t../src/s2/encoded_string_vector.h;:
30      :
| In file included from                                   ^../src/s2/util/coding/coder.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/casts.h257::3423:
:In file included from  /usr/local/clang/include/absl/log/log.h:note: 209expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:  22257:
 | /usr/local/clang/include/absl/log/internal/log_message.h#:d426e:f31i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _426n | u l lLaobglMee s_sNauglelFaabtlael
(      c| o                      ^n
st char* absl_nonnIn file included from us2/encoded_s2cell_id_vector.ccl:l18 :
fIn file included from i../src/s2/encoded_s2cell_id_vector.hl:e29,:
 In file included from i../src/s2/s2cell_id.hn:t43 :
lIn file included from i../src/s2/s1angle.hn:e28,:

In file included from       ../src/s2/s2point.h| :                              ^27
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  241/usr/local/clang/include/absl/strings/cord.h | :#938d:e35f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l938_ | n o n n ualbls l_:N:ocnonrudl_li
n      t| e                     ^r
nal::CordIn file included from Rs2/encoded_s2point_vector.cce:p18*:
 In file included from a../src/s2/encoded_s2point_vector.hb:s27l:
_In file included from n../src/s2/encoded_string_vector.ho:n30n:
uIn file included from l../src/s2/util/coding/coder.hl: 36a:
sIn file included from _../src/s2/base/casts.ht:r34e:
eIn file included from (/usr/local/clang/include/absl/log/log.h): 209c:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hs:t22;:

/usr/local/clang/include/absl/log/internal/log_message.h      :| 427                                  ^:
31: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'427
 |     241  |  # d e f i n e   a b s l _ n ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull failure_mIn file included from ss2/encoded_s2cell_id_vector.ccg:)18 :
AIn file included from B../src/s2/encoded_s2cell_id_vector.hS:L29_:
AIn file included from T../src/s2/s2cell_id.hT:R43I:
BIn file included from U../src/s2/s1angle.hT:E28_:
CIn file included from O../src/s2/s2point.hL:D27;:

In file included from       ../src/s2/s2coder.h| :                              ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
939:17  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n939e |   a b s lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.hIn file included from :s2/encoded_s2cell_id_vector.cc30::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/encoded_s2cell_id_vector.h36::
29In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2cell_id.h34::
43In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :../src/s2/s1angle.h209::
28In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :../src/s2/s2point.h22::
27:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :../src/s2/s2coder.h436::2336:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  436/usr/local/clang/include/absl/strings/cord.h | : 941 :L35o:g Mwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
sag  e941D | e b u g Faabtsall:(:ccoonrsdt_ icnhtaerr*n aalb:s:lC_onrodnRneupl*l  afbislle_,n
u      l| l                                   ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241c:l22e:a rnote: (expanded from macro 'absl_nonnull')
;
        241|  |                                   ^#
de/usr/local/clang/include/absl/base/nullability.hf:i257n:e23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf i_nNeo nanbuslll_
n      u| l                     ^l
able _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18In file included from :
s2/encoded_s2point_vector.ccIn file included from :../src/s2/encoded_s2cell_id_vector.h18::
29In file included from :
../src/s2/encoded_s2point_vector.hIn file included from :../src/s2/s2cell_id.h27::
43In file included from :
../src/s2/encoded_string_vector.hIn file included from :../src/s2/s1angle.h30::
28In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2point.h36::
27In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2coder.h34::
23In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :/usr/local/clang/include/absl/status/status.h209::
67In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::
29:
/usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/strings/cord.h446::95043::18 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    446950 |  |     L o gCMoersdsRaegpeFQluaite*t laybDselb_ungoFnantualll( cMoanksetF lcahtaWri*t haEbxstlr_anCoanpnauclilt yf(isliez,e
_      t|                                            ^e
xt/usr/local/clang/include/absl/base/nullability.hr:a241):;22
:       | note:                  ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/encoded_s2point_vector.cc957: | 18 :
 In file included from  ../src/s2/encoded_s2point_vector.h :v27o:
iIn file included from d../src/s2/encoded_string_vector.h :S30e:
tIn file included from T../src/s2/util/coding/coder.hr:e36e:
(In file included from C../src/s2/base/casts.ho:r34d:
RIn file included from e/usr/local/clang/include/absl/log/log.hp:*209 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hs:l22_:
n/usr/local/clang/include/absl/log/internal/log_message.ho:n454n:u38l:l  warning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
p, co  n454s | t   CLoorgdMzeUspsdaagteeQSucioeptel&y Fsactoaple()c;o
n      s| t                          ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle ffiinlee ,a
b      s| l                                     ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _NonnulIn file included from ls2/encoded_s2cell_id_vector.cc
:      18| :
                     ^In file included from 
../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/encoded_s2point_vector.cc::96118::
34In file included from :../src/s2/encoded_s2point_vector.h :27warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/encoded_string_vector.h:30:
  In file included from 961../src/s2/util/coding/coder.h | : 36 :
 In file included from  ../src/s2/base/casts.hv:o34i:
dIn file included from  /usr/local/clang/include/absl/log/log.hS:e209t:
TIn file included from r/usr/local/clang/include/absl/log/internal/log_impl.he:e22O:
r/usr/local/clang/include/absl/log/internal/log_message.hE:m456p:t38y:( Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
dRe  p456* |   a bLsolg_MneuslslaagbelQeu ireetpl,y
F      a| t                                 ^a
l(/usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  cnote: hexpanded from macro 'absl_nullable'a
r*   257a | b#sdle_fnionnen ualbls lf_inluel,l aibnlte  l_iNnuel,l
a      b| l                                     ^e

      | /usr/local/clang/include/absl/base/nullability.h                      ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/encoded_s2cell_id_vector.ccl:_18n:
oIn file included from n../src/s2/encoded_s2cell_id_vector.hn:u29l:
lIn file included from  ../src/s2/s2cell_id.h_:N43o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/encoded_s2point_vector.cc29::
18:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/encoded_s2point_vector.h968::2731:
:In file included from  ../src/s2/encoded_string_vector.h:warning: 30type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/coding/coder.h:36:
  In file included from 968../src/s2/base/casts.h | : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.hv:o209i:
dIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hE:m22p:
l/usr/local/clang/include/absl/log/internal/log_message.ha:c457e:T38r:e ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ord  R457e | p *   a b s l _ n o n n u l l   r e p ,   M e t h ocdoIndsetn tcihfaire*r  ambestlh_ondo)n;n
u      l| l                              ^ 
fa/usr/local/clang/include/absl/base/nullability.hi:l241u:r22e:_ mnote: sexpanded from macro 'absl_nonnull'g
)
        241|  |                                      ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absIn file included from ls2/encoded_s2point_vector.cc_:n18o:
nIn file included from n../src/s2/encoded_s2point_vector.hu:l27l:
 In file included from d../src/s2/encoded_string_vector.hs:t30):
 In file included from c../src/s2/util/coding/coder.ho:n36s:
tIn file included from  ../src/s2/base/casts.h{:
36      :
| In file included from                                                ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/log/internal/check_op.h:  180241: | 42#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne ab  s180l | _AnBoSnLn_uAlTlT R_INBoUnTnEu_lPlU
R      E| _                     ^F
UNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTIn file included from Rs2/encoded_s2cell_id_vector.ccI:B18U:
TIn file included from E../src/s2/encoded_s2cell_id_vector.h_:N29O:
IIn file included from N../src/s2/s2cell_id.hL:I43N:
EIn file included from ;../src/s2/s1angle.h
:      28| :
                              ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e1525f:i29n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n o1525n | n u l l  c_oNrodn_niunltle
r      n| a                     ^l
::CordRep* absl_nonnull tree) {
      In file included from | s2/encoded_s2point_vector.cc                            ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/encoded_s2point_vector.h::24127::
22In file included from :../src/s2/encoded_string_vector.h :30note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/util/coding/coder.h:36  :
241In file included from  | ../src/s2/base/casts.h#:d36e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 432_:N13o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^432
 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18In file included from :
s2/encoded_s2point_vector.ccIn file included from :../src/s2/encoded_s2cell_id_vector.h18::
29In file included from :
../src/s2/encoded_s2point_vector.hIn file included from :../src/s2/s2cell_id.h27::
43In file included from :
../src/s2/encoded_string_vector.hIn file included from :../src/s2/s1angle.h30::
28In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2point.h36::
27In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2coder.h36::
23In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/status/status.h21::
67In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h37::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/strings/cord.h21::
1530/usr/local/clang/include/absl/log/internal/check_op.h::55433:: 56:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530   | 433i | n l i n e   C o r d : : C h u n k I t e r a t o r : : C h u n k I t e r a t o r ( c o ncsotn sCto rcdh*a ra*b salb_snlo_nnnounlnlu lclo redx)p r{t
e      x| t                                                      ^)
 {/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                       ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/encoded_s2cell_id_vector.ccl:_18n:
oIn file included from n../src/s2/encoded_s2cell_id_vector.hn:u29l:
lIn file included from  ../src/s2/s2cell_id.h_:N43o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/encoded_s2point_vector.cc: 181666:
 | In file included from i../src/s2/encoded_s2point_vector.hn:l27i:
nIn file included from e../src/s2/encoded_string_vector.h :C30o:
rIn file included from d../src/s2/util/coding/coder.h :C36o:
rIn file included from d../src/s2/base/casts.h:::36A:
dIn file included from v../src/s2/base/logging.ha:n21c:
eIn file included from A/usr/local/clang/include/absl/log/check.hn:d37R:
eIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hd:(21C:
h/usr/local/clang/include/absl/log/internal/check_op.ha:r456I:t1e:r awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r*   a456b | sAlB_SnLo_nLnOuGl_lI NiTtE,R
N      A| L                                               ^_
DEF/usr/local/clang/include/absl/base/nullability.hI:N241E:_22M:A Knote: Eexpanded from macro 'absl_nonnull'_
CH  E241C | K#_dOePf_iSnTeR IaNbGs_lE_XnToEnRnNu(lclh a_rN)o;n
n      u| l^l

      | /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/encoded_s2cell_id_vector.cc::24118::
22In file included from :../src/s2/encoded_s2cell_id_vector.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2cell_id.h:43  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
o/usr/local/clang/include/absl/strings/cord.hn:n1672u:l41l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1672 | In file included from is2/encoded_s2point_vector.ccn:l18i:
nIn file included from e../src/s2/encoded_s2point_vector.h :v27o:
iIn file included from d../src/s2/encoded_string_vector.h :C30o:
rIn file included from d../src/s2/util/coding/coder.h:::36A:
dIn file included from v../src/s2/base/casts.ha:n36c:
eIn file included from (../src/s2/base/logging.hC:h21a:
rIn file included from I/usr/local/clang/include/absl/log/check.ht:e37r:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.ho:r21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b456s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
u/usr/local/clang/include/absl/log/internal/check_op.hl:l450 :i25t:,  note: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
ze  _450t |   n _ b y t exs,)  x{,
       c| o                                        ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln)e
       a| b                        ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inlinIn file included from es2/encoded_s2point_vector.cc :c18o:
nIn file included from s../src/s2/encoded_s2point_vector.ht: 27s:
tIn file included from a../src/s2/encoded_string_vector.ht:u30s:
_In file included from i../src/s2/util/coding/coder.hn:t40e:
rIn file included from n../src/s2/util/coding/varint.ha:l44::
:In file included from S../src/s2/util/bits/bits.ht:a21t:
uIn file included from s/usr/local/clang/include/absl/numeric/bits.hR:e52p:
*In file included from  /usr/local/clang/include/absl/base/internal/endian.ha:b26s:
l/usr/local/clang/include/absl/base/internal/unaligned_access.h_:n65o:n36n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Stat   u65s | :i:nRleipnTeo Pvooiindt eUrn(a
l      i| g                                         ^n
edSt/usr/local/clang/include/absl/base/nullability.ho:r241e:6224:( vnote: oexpanded from macro 'absl_nonnull'i
d*   241a | b#sdle_fnionnen ualbls lp_,n ouninnutl6l4 __tN ovn)n u{l
l      
|                                          ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2cell_id_vector.cc:18:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
365 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/encoded_string_vector.cc -o s2/encoded_string_vector.o
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:83:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/arg.h:36:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:83:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/arg.h:37:
In file included from /usr/local/clang/include/absl/strings/has_absl_stringify.h:22:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:31:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2point_vector.cc:18:
In file included from ../src/s2/encoded_s2point_vector.h:31:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:28:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:28:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:29:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEIn file included from Fs2/encoded_string_vector.ccI:N18E:
_In file included from M../src/s2/encoded_string_vector.hA:K30E:
_In file included from C../src/s2/util/coding/coder.hH:E33C:
KIn file included from _/usr/local/clang/include/absl/numeric/int128.hO:P41_:
ST/usr/local/clang/include/absl/types/compare.hR:I78N:G22_:E Xwarning: T'enable_if' is a clang extension [-Wgcc-compat]E
RN(co   n78s | t   s t d : :_s_tartitnrgi&b)u;t
e      _| _^(
(e/usr/local/clang/include/absl/log/internal/check_op.hn:a449b:l31e:_ inote: fexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'(
n =  =449  | 0 ,  e"xOtnelryn  ltietmeprlaalt e` 0c`o nisst  aclhlaorw*e da.b"s)l)_)n o{n}n
u      l| l                     ^ 
MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:29:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/encoded_string_vector.ccl:
18      :
| In file included from                      ^../src/s2/encoded_string_vector.h
:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:30:
In file included from ../src/s2/encoded_s2cell_id_vector.h:29:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
367 warnings generated.
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_s2shape_index.cc:18:
In file included from ../src/s2/encoded_s2shape_index.h:32:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/encoded_string_vector.cc:18:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
161 warnings generated.
572 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/id_set_lexicon.cc -o s2/id_set_lexicon.o
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/mutable_s2shape_index.cc -o s2/mutable_s2shape_index.o
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/r2rect.cc -o s2/r2rect.o
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/id_set_lexicon.cc:18:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s1angle.cc -o s2/s1angle.o
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
142 warnings generated.
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/r2rect.cc:18:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_baIn file included from ss2/r2rect.cce:(18a:
bIn file included from s../src/s2/r2rect.hl::24::
sIn file included from t../src/s2/base/logging.hr:i22n:
gIn file included from _/usr/local/clang/include/absl/log/log.hv:i209e:
wIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.ht:e20x:
tIn file included from ,/usr/local/clang/include/absl/log/absl_vlog_is_on.h :i63n:
t8/usr/local/clang/include/absl/log/internal/vlog_config.h_:t49*: 37a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u49l | li nvta lRueeg,i
s      t| e                                                      ^r
An/usr/local/clang/include/absl/base/nullability.hd:I241n:i22t:i anote: lexpanded from macro 'absl_nonnull'i
ze  (241V | L#odgeSfiitnee*  aabbssll__nnoonnnnuullll  _vN)o;n
n      u| l                                    ^l

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/mutable_s2shape_index.cc_:n18o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from _/usr/local/clang/include/absl/container/btree_map.hN:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                     ^:
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_stIn file included from rs2/r2rect.cct:o181:
6In file included from _../src/s2/r2rect.hb:a24s:
eIn file included from (../src/s2/base/logging.ha:b22s:
lIn file included from :/usr/local/clang/include/absl/log/log.h::s209t:
rIn file included from i/usr/local/clang/include/absl/log/internal/log_impl.hn:g20_:
vIn file included from i/usr/local/clang/include/absl/log/absl_vlog_is_on.he:w63 :
t/usr/local/clang/include/absl/log/internal/vlog_config.he:x63t:,43 :i nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1
6_t   *63  | a b selx_pnloincniutl lc ovnasltueex,p
r       | V                                                        ^L
og/usr/local/clang/include/absl/base/nullability.hS:i241t:e22(:c onote: nexpanded from macro 'absl_nonnull's
t   c241h | a#rd*e faibnsel _anbosnln_unloln nfu)l
l       | _                                          ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _In file included from Ns2/mutable_s2shape_index.cco:n18n:
uIn file included from l../src/s2/mutable_s2shape_index.hl:
30      :
| In file included from                      ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, In file included from is2/r2rect.ccn:t183:
2In file included from _../src/s2/r2rect.ht:*24 :
aIn file included from b../src/s2/base/logging.hs:l22_:
nIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h :v20a:
lIn file included from u/usr/local/clang/include/absl/log/absl_vlog_is_on.he:,63
:
      | /usr/local/clang/include/absl/log/internal/vlog_config.h                                                        ^:
96:60/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
     96241 |  |  # dferfiienned  aibnstl _lnoogn_niunltle r_nNaoln:n:uRlelg
i      s| t                     ^e
rAndInitialize(VLogSiIn file included from ts2/mutable_s2shape_index.cce:*18 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l30_:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :v70):
;In file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                                                           ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/base/nullability.h116::
241In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h22::23 :
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull':
162:57  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e162  | abbosoll_ nsoanfneu_lslt r_tNoo6n4n_ublals
e      (| a                     ^b
sl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/r2rect.cc::24118::
22In file included from :../src/s2/r2rect.h :24note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:22  :
241In file included from  | /usr/local/clang/include/absl/log/log.h#:d209e:
fIn file included from i/usr/local/clang/include/absl/log/internal/log_impl.hn:e20 :
aIn file included from b/usr/local/clang/include/absl/log/absl_vlog_is_on.hs:l63_:
n/usr/local/clang/include/absl/log/internal/vlog_config.ho:n119n:u15l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn  u119l | l 
       c| o                     ^n
st char* absl_nonnull conIn file included from ss2/mutable_s2shape_index.cct: 18f:
iIn file included from l../src/s2/mutable_s2shape_index.he:_30;:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :              ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/base/nullability.h70::
241In file included from :/usr/local/clang/include/absl/container/internal/layout.h22::198 :
In file included from note: /usr/local/clang/include/absl/strings/str_cat.hexpanded from macro 'absl_nonnull':
116:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h241: | 23#:
d/usr/local/clang/include/absl/strings/numbers.he:f168i:n59e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n168n | ublolo l_ Nsoanfneu_lslt
r      t| o                     ^u
16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absIn file included from ls2/r2rect.cc_:n18o:
nIn file included from n../src/s2/r2rect.hu:l24l:
 In file included from F../src/s2/base/logging.ha:s22t:
IIn file included from n/usr/local/clang/include/absl/log/log.ht:T209o:
BIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.hf:f20e:
rIn file included from (/usr/local/clang/include/absl/log/absl_vlog_is_on.hu:i63n:
t64/usr/local/clang/include/absl/log/internal/vlog_config.h_:t133 :i37,:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r*   a133b | siln_tn oRnenguilslt ebruAfnfdeIrn)i
t      i| a                                                     ^l
iz/usr/local/clang/include/absl/base/nullability.he:(241V:L22o:g Snote: iexpanded from macro 'absl_nonnull't
e*   241a | b#sdle_fnionnen ualbls lv_)n;o
n      n| u                                    ^l
l _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
note:       expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIn file included from Is2/r2rect.ccZ:E18(:
bIn file included from u../src/s2/r2rect.hf:f24e:
rIn file included from ,../src/s2/base/logging.h :k22F:
aIn file included from s/usr/local/clang/include/absl/log/log.ht:T209o:
BIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.hf:f20e:
rIn file included from S/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:z63e:
)/usr/local/clang/include/absl/log/internal/vlog_config.h;:
157      :| 11    ^:
 warning: /usr/local/clang/include/absl/base/macros.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
251:18:   157note:  | expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'V
Log  S251i | t e *_ _aabtstlr_inbuultlea_b_l(e( dSieatgVnMoosdeu_liefL(i_s_tbHueialdtFionr_ToebsjteOcntl_ys(i
z      e| (          ^O
bj/usr/local/clang/include/absl/base/nullability.h,: 2570:)23 :<  note: Nexpanded from macro 'absl_nullable',
 \  
257       | | #                 ^d
efine absIn file included from ls2/mutable_s2shape_index.cc_:n18u:
lIn file included from l../src/s2/mutable_s2shape_index.ha:b30l:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:b70l:
eIn file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                      ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
In file included from /usr/local/clang/include/absl/strings/numbers.hs2/r2rect.cc::20618::
7In file included from :../src/s2/r2rect.h :24warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:22:
In file included from   /usr/local/clang/include/absl/log/log.h206: | 209c:
hIn file included from a/usr/local/clang/include/absl/log/internal/log_impl.hr:*20 :
aIn file included from b/usr/local/clang/include/absl/log/absl_vlog_is_on.hs:l63_:
n/usr/local/clang/include/absl/log/internal/vlog_config.ho:n158n:u15l:l  warning: Ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
st  I158n | t T o B uVfLfoegrS(iitnet*1 2a8b sil,_ ncuhlalra*b laeb svl)_;n
o      n| n              ^u
ll/usr/local/clang/include/absl/base/nullability.h :b257u:f23f:e rnote: )expanded from macro 'absl_nullable'

      |         ^257
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s1chord_angle.cc -o s2/s1chord_angle.o
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
142 warnings generated.
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3:    warning: 39passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
inli  n581e |   u iAnBtS1L6__ItN TUEnRaNlAiLg_nXe(dLoaidn1s6e(rcto_nosrt_ avsosiidg*n ,a bisnls_enrotn_nourl_la sps)i g{n
_      h| i                                            ^n
t_impl, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 &  ,241
 |       #| d  ^e
fi/usr/local/clang/include/absl/container/internal/btree_container.hn:e509 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onn  u509l | l   _ N o n n u l l 
A      B| S                     ^L
_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNIn file included from As2/s1angle.ccL:_18I:
FIn file included from _../src/s2/s1angle.ht:r28u:
eIn file included from (../src/s2/s2point.hi:f24_:
sIn file included from a/usr/local/clang/include/absl/hash/hash.ht:i89s:
fIn file included from i/usr/local/clang/include/absl/hash/internal/hash.he:d79,:
 In file included from ./usr/local/clang/include/absl/base/internal/endian.h.:.26):
 /usr/local/clang/include/absl/base/internal/unaligned_access.hi:f45_:s45a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied   
45       | | i        ^n
line uint32_t UIn file included from ns2/mutable_s2shape_index.cca:l18i:
gIn file included from n../src/s2/mutable_s2shape_index.he:d30L:
oIn file included from a/usr/local/clang/include/absl/container/btree_map.hd:3672:
(/usr/local/clang/include/absl/container/internal/btree_container.hc:o581n:s3t:  vwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
d* ab  s581l | _ n oAnBnSuLl_lI NpT)E R{N
A      L| _                                            ^X
(i/usr/local/clang/include/absl/base/nullability.hn:s241e:r22t:_ onote: rexpanded from macro 'absl_nonnull'_
as  s241i | g#nd,e fiinnsee rat_orb_sals_sniognnn_uhliln t__Niomnpnlu,l l&
&      ,|                       ^c
onst &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNIn file included from As2/s1angle.ccL:_18C:
OIn file included from M../src/s2/s1angle.hM:A28):
;In file included from 
../src/s2/s2point.h      :| 24                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/hash/hash.h:89/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509/usr/local/clang/include/absl/hash/internal/hash.h::4779::
 In file included from /usr/local/clang/include/absl/base/internal/endian.hnote: :expanded from macro 'ABSL_INTERNAL_X'26
:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51  :50945 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       51  |  iAnBlSiLn_eI NuTiEnRtN6A4L__tA TUTnRaIlBiUgTnEe_dCLAoPaTdU6R4E(Dc_oBnYs(tt hviosi)d)*,  a b s l _ n o n n u l l   p )   { 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                                              ^~~~:
 note: expanded from macro 'absl_nonnull'
  241/usr/local/clang/include/absl/container/internal/btree_container.h | :#581d:e3f:i nwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l511_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N511o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s1angle.cc::3218::
9In file included from :../src/s2/s1angle.h :28note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
../src/s2/s2point.h:24:
   In file included from 32/usr/local/clang/include/absl/hash/hash.h | :#89d:
eIn file included from f/usr/local/clang/include/absl/hash/internal/hash.hi:n79e:
 In file included from A/usr/local/clang/include/absl/base/internal/endian.hB:S26L:
_/usr/local/clang/include/absl/base/internal/unaligned_access.hI:N57T:E36R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
IF_   f57a | lisnel(iinfe_ svaotiids fUineadl,i g.n.e.d)S t_o_rVeA1_6A(RvGoSi_d_*
       a| b        ^s
l_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/mutable_s2shape_index.cc::24118::
22In file included from :../src/s2/mutable_s2shape_index.h :30note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67  :
241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d583e:f3i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl_non  n583u | l l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &In file included from ,s2/s1angle.cc
:      18| :
  ^In file included from 
../src/s2/s1angle.h:28:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2point.h509::2452:
:In file included from  /usr/local/clang/include/absl/hash/hash.h:note: 89expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
  In file included from 509/usr/local/clang/include/absl/base/internal/endian.h | : 26 :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h : 65 : 36 :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_   I65N | TiEnRlNiAnLe_ AvToTiRdI BUUnTaEl_iCgAnPeTdUSRtEoDr_eB6Y4((tvhoiisd)*) ,a b s l _ n o n n u l l   p ,   u i n t 6 4 _ t  \v
)       | {                                                   ^

      |                                    ^/usr/local/clang/include/absl/container/internal/common.h
:31:/usr/local/clang/include/absl/base/nullability.h9::241 :22note: :macro 'ABSL_INTERNAL_IF_true' defined here 
note: expanded from macro 'absl_nonnull'
   31 |   #241d | e#fdienfei nAeB SaLb_sIlN_TnEoRnNnAuLl_lI F__Ntornuneu(lilf
_      s| a                     ^t
isfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_In file included from os2/s1angle.ccr:_18a:
sIn file included from s../src/s2/s1angle.hi:g28n:
,In file included from  ../src/s2/s2point.hi:n24s:
eIn file included from r/usr/local/clang/include/absl/hash/hash.ht:_89o:
rIn file included from _/usr/local/clang/include/absl/hash/internal/hash.ha:s79s:
ig/usr/local/clang/include/absl/base/internal/endian.hn:_160h:i36n:t _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl,   &160& | ,i n&l&i,n ef aulisnet,1
6      _| t  ^ 
Lo/usr/local/clang/include/absl/container/internal/btree_container.ha:d5091:652(:c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t v  o509i | d *   a b s l _ n o nAnBuSlLl_ IpN)T E{R
N      A| L                                   ^_
ATT/usr/local/clang/include/absl/base/nullability.hR:I241B:U22T:E _note: Cexpanded from macro 'absl_nonnull'A
PT  U241R | E#Dd_eBfYi(nteh iasb)s)l,_ n o n n u l l   _ N o n n u l l 
        |                       ^ 
   \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_saIn file included from ts2/s1angle.cci:s18f:
iIn file included from e../src/s2/s1angle.hd:,28 :
.In file included from .../src/s2/s2point.h.:)24 :
_In file included from _/usr/local/clang/include/absl/hash/hash.hV:A89_:
AIn file included from R/usr/local/clang/include/absl/hash/internal/hash.hG:S79_:
_/usr/local/clang/include/absl/base/internal/endian.h
:      164| :        ^27
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164In file included from  | s2/mutable_s2shape_index.cci:n18l:
iIn file included from n../src/s2/mutable_s2shape_index.he: 30v:
oIn file included from i/usr/local/clang/include/absl/container/btree_map.hd: 67S:
t/usr/local/clang/include/absl/container/internal/btree_container.ho:r588e:136:( vwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
d* a  b588s | l _ nAoBnSnLu_lIlN TpE,R NuAiLn_tX1(6i_nts evr)t _{o
r      _| a                          ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241,: 22i:n snote: eexpanded from macro 'absl_nonnull'r
t_  o241r | _#adsesfiignne_ haibnstl__inmopnln,u l&l& ,_ N&o&n,n uflall
s      e| ,                     ^

      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(tIn file included from hs2/s1angle.cci:s18):
)In file included from )../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 168 : 36 :\ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                   ^

/usr/local/clang/include/absl/container/internal/common.h:  31168: | 9i:n lnote: imacro 'ABSL_INTERNAL_IF_true' defined heren
e u   i31n | t#3d2e_fti nLeo aAdB3S2L(_cIoNnTsEtR NvAoLi_dI*F _atbrsule_(niofn_nsualtli spf)i e{d
,       | .                                   ^.
.)/usr/local/clang/include/absl/base/nullability.h :i241f:_22s:a tnote: iexpanded from macro 'absl_nonnull's
fi  e241d | 
#      d| e        ^f
ine absl_nonnullIn file included from  s2/mutable_s2shape_index.cc_:N18o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assigIn file included from ns2/s1angle.cc,: 18i:
nIn file included from s../src/s2/s1angle.he:r28t:
_In file included from o../src/s2/s2point.hr:_24a:
sIn file included from s/usr/local/clang/include/absl/hash/hash.hi:g89n:
_In file included from h/usr/local/clang/include/absl/hash/internal/hash.hi:n79t:
_/usr/local/clang/include/absl/base/internal/endian.hi:m172p:l27,:  &warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 &&  ,172  | fianllsien,e
       v| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
d S  t589o | r e 3 2 ( v o i d *   a b s l _ n o ntnruulel,  pc,o nusitn_ti3t2e_rta tvo)r ({h
i      n| t                          ^)
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | C#OdMeMfAi)n;e
       a| b                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
l_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:  _note: Nexpanded from macro 'ABSL_INTERNAL_X'o
nnul  l511
 |        |                       ^ 
       ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))    In file included from  s2/s1angle.cc : 18 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from \/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
                                              ^~~~
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h  :241590 | :#3d:efi nwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
absl  _590n | o n nAuBlSlL __INNoTnEnRuNlAlL
_      X| (                     ^i
nsert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satiIn file included from ss2/s1angle.ccf:i18e:
dIn file included from ,../src/s2/s1angle.h :.28.:
.In file included from )../src/s2/s2point.h :i24f:
_In file included from s/usr/local/clang/include/absl/hash/hash.ha:t89i:
sIn file included from f/usr/local/clang/include/absl/hash/internal/hash.hi:e79d:

      /usr/local/clang/include/absl/base/internal/endian.h| :        ^250
:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inliIn file included from ns2/mutable_s2shape_index.cce: 18u:
iIn file included from n../src/s2/mutable_s2shape_index.ht:1306:
_In file included from t/usr/local/clang/include/absl/container/btree_map.h :L67o:
a/usr/local/clang/include/absl/container/internal/btree_container.hd:15926:(3c:o nwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
 void  *592  | a b sAlB_SnLo_nInNuTlElR NpA)L _{X
(      i| n                                   ^s
ert/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n,   241i | n#sdeerfti_noer _aabsssli_gnno_nhniunltl_ i_mNpoln,n u&l&l,
       &| &                     ^,
 true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(In file included from hs2/s1angle.cci:n18t:
)In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hI:N24T:
EIn file included from R/usr/local/clang/include/absl/hash/hash.hN:A89L:
_In file included from C/usr/local/clang/include/absl/hash/internal/hash.hO:M79M:
A/usr/local/clang/include/absl/base/internal/endian.h):;254
:      27| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47  :254  | note: iexpanded from macro 'ABSL_INTERNAL_X'n
lin  e509  | v o i d   S t o r e 1A6B(SvLo_iIdN*T EaRbNsAlL__nAoTnTnRuIlBlU TpE,_ CuAiPnTtU1R6E_Dt_ BvY)( t{h
i      s| )                          ^)
, /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                              ^~~~o
nnull _N/usr/local/clang/include/absl/container/internal/btree_container.ho:n592n:u3l:l 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BIn file included from Ys2/s1angle.cc(:t18h:
iIn file included from s../src/s2/s1angle.h):)28):
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 258 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                                                    ^  
258 | /usr/local/clang/include/absl/container/internal/common.hi:n31l:i9n:e  note: umacro 'ABSL_INTERNAL_IF_true' defined herei
nt3   231_ | t# dLeofaidn3e2 (AcBoSnLs_tI NvToEiRdN*A La_bIsFl__tnrounen(uilfl_ spa)t i{s
f      i| e                                   ^d
, /usr/local/clang/include/absl/base/nullability.h.:.241.:)22 :i fnote: _expanded from macro 'absl_nonnull's
at  i241s | f#ideedf
i      n| e        ^ 
absl_nonnulIn file included from ls2/mutable_s2shape_index.cc :_18No:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assIn file included from is2/s1angle.ccg:n18,:
 In file included from i../src/s2/s1angle.hn:s28e:
rIn file included from t../src/s2/s2point.h_:o24r_:
aIn file included from s/usr/local/clang/include/absl/hash/hash.hs:i89g:
nIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hh:i79n:
t/usr/local/clang/include/absl/base/internal/endian.h_:i262m:p27l:,  warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
, &  &262, |  itnrluien,e
       v| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
d St  o593r | e 3 2 ( v o i d *   a b s l _ n o n nturlule ,p ,c ounisntt_3i2t_etr avt)o r{(
h      i| n                          ^t
) /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#CdOeMfMiAn)e; 
a      b| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:  _note: Nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l511l | 
        |                       ^ 
      ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))    In file included from  s2/s1angle.cc : 18 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from \/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
                                              ^~~~
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s1angle.cc:  18618:
 | In file included from  ../src/s2/s1angle.h :A28B:
SIn file included from L../src/s2/s2point.h_:I24N:
TIn file included from E/usr/local/clang/include/absl/hash/hash.hR:N89A:
LIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hX:(79t:
r/usr/local/clang/include/absl/base/internal/endian.hy:_270e:m27p:l awarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
, t  r270y | _ienmlpilnaec ev_oiimdp lS,t ocroen6s4t( v&o,i df*a lasbes)l;_
n      o| n                                                               ^n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl: 596p:,9 :u inote: nmacro 'ABSL_INTERNAL_X' defined heret
64_  t596  | v#)d e{f
i      n| e                          ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241X | (#Fduenfci,n eC aalblsele_,n oKnQnuualll,  _KNVoanlnuuel,l 
.      .| .                     ^)
                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/mutable_s2shape_index.cc:18:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/mutable_s2shape_index.cc:85:1: warning: '__COUNTER__' is a C2y extension [-Wc2y-extensions]
   85 | S2_DEFINE_int32(
      | ^
../src/s2/base/commandlineflags.h:33:3: note: expanded from macro 'S2_DEFINE_int32'
   33 |   ABSL_FLAG(int32, name, default_value, description)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:170:3: note: expanded from macro 'ABSL_FLAG'
  170 |   ABSL_FLAG_IMPL(Type, name, default_value, help)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:272:3: note: expanded from macro 'ABSL_FLAG_IMPL'
  272 |   ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help)                     \
      |   ^
/usr/local/clang/include/absl/flags/flag.h:250:44: note: expanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'
  250 |   constexpr auto FLAGS_help_storage_##name ABSL_INTERNAL_UNIQUE_SMALL_NAME() \
      |                                            ^
/usr/local/clang/include/absl/base/optimization.h:306:46: note: expanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'
  306 |   asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__))
      |                                              ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.hs2/mutable_s2shape_index.cc::36104:
:In file included from 1../src/s2/base/logging.h:: 21:
warning: In file included from '__COUNTER__' is a C2y extension [-Wc2y-extensions]/usr/local/clang/include/absl/log/check.h
:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h104: | 21S:
2/usr/local/clang/include/absl/log/internal/check_op.h_:D504E:F1I:N Ewarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nt/usr/local/clang/include/absl/log/internal/check_op.h6:4497(:
32      :|  ^note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
../src/s2/base/commandlineflags.h:36  :4973 | :   note: iexpanded from macro 'S2_DEFINE_int64'n
lin   e36  | c o nAsBtSeLx_pFrL AcGo(nisntt 6c4h,a rn*a maeb,s ld_enfualullatb_lvea lnuaem,e #d#eIsmcprli(p t i o n ) 
        |    ^ 
  /usr/local/clang/include/absl/flags/flag.h : 170 : 3 :   note: \expanded from macro 'ABSL_FLAG'

      |                                ^  
170 |  /usr/local/clang/include/absl/base/nullability.h :A257B:S23L:_ Fnote: Lexpanded from macro 'absl_nullable'A
G_  I257M | P#Ld(eTfyipnee,  anbasmle_,n udlelfaabullet __vNaullulea,b lhee
l      p| )                      ^

      |   ^
/usr/local/clang/include/absl/flags/flag.h:272:3: In file included from note: s2/s1angle.ccexpanded from macro 'ABSL_FLAG_IMPL':
18:
In file included from ../src/s2/s1angle.h:  28272:
 | In file included from  ../src/s2/s2point.h :A25B:
SIn file included from L../src/s2/util/coding/coder.h_:F36L:
AIn file included from G../src/s2/base/casts.h_:I36M:
PIn file included from L../src/s2/base/logging.h_:D21E:
CIn file included from L/usr/local/clang/include/absl/log/check.hA:R37E:
_In file included from H/usr/local/clang/include/absl/log/internal/check_impl.hE:L21P:
_/usr/local/clang/include/absl/log/internal/check_op.hW:R504A:P1P:E Rwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
am/usr/local/clang/include/absl/log/internal/check_op.he:,498 :h35e:l pnote: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      498  |              i n t   v 1 ,   i\n
t       | v  ^2
, /usr/local/clang/include/absl/flags/flag.hc:o250n:s44t:  cnote: hexpanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'a
r*   a250b | s l _cnoonnsntuelxlp re xapurttoe xFtL)A G{S _ h e l p _ s t o r a g e _ # # n\a
m      e|                                    ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  U241N | I#QdUeEf_iSnMeA LaLb_sNlA_MnEo(n)n u\l
l       | _                                           ^N
on/usr/local/clang/include/absl/base/optimization.hn:u306l:l46
:       | note:                      ^expanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'

  306 |   asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__))
      |                                              ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlis2/mutable_s2shape_index.ccn:e121 :c1o:n swarning: t'__COUNTER__' is a C2y extension [-Wc2y-extensions]e
xpr   121c | oSn2s_tD EcFhIaNrE*_ daobusbll_en(u
l      l| a^b
le ../src/s2/base/commandlineflags.hn:a30m:e3#:# Inote: mexpanded from macro 'S2_DEFINE_double'p
l(     30  |      A B S L _ F L A G ( d o u b\l
e      ,|                                 ^n
am/usr/local/clang/include/absl/base/nullability.he:,257 :d23e:f anote: uexpanded from macro 'absl_nullable'l
t_  v257a | l#udee,f idnees carbisplt_inounl)l
a      b| l  ^e
 _/usr/local/clang/include/absl/flags/flag.hN:u170l:l3a:b lnote: eexpanded from macro 'ABSL_FLAG'

      |                       ^  
170 |   ABSL_FIn file included from Ls2/s1angle.ccA:G18_:
IIn file included from M../src/s2/s1angle.hP:L28(:
TIn file included from y../src/s2/s2point.hp:e25,:
 In file included from n../src/s2/util/coding/coder.ha:m36e:
,In file included from  ../src/s2/base/casts.hd:e36f:
aIn file included from u../src/s2/base/logging.hl:t21_:
vIn file included from a/usr/local/clang/include/absl/log/check.hl:u37e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hh:e21l:
p/usr/local/clang/include/absl/log/internal/check_op.h):
506      :| 1  ^:
 warning: /usr/local/clang/include/absl/flags/flag.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
272:/usr/local/clang/include/absl/log/internal/check_op.h3::498 :35note: :expanded from macro 'ABSL_FLAG_IMPL' 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  272 |     498A | B S L _ F L AiGn_tI MvP1L,_ DiEnCtL AvR2E,_ HcEoLnPs_tW RcAhPaPrE*R (anbasmle_,n ohnenlupl)l   e x p r t e x t )   {                  \ 
        |    ^ 
  /usr/local/clang/include/absl/flags/flag.h :\250
:      44| :                                  ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER':
241:22:   250note:  | expanded from macro 'absl_nonnull' 
 c  o241n | s#tdeexfpirn ea uatbos lF_LnAoGnSn_uhlell p__Nsotnonrualgle
_      #| #                     ^n
ame ABSL_INTERNAL_UNIQUE_SMALL_NAME() \
      |                                            ^
/usr/local/clang/include/absl/base/optimization.h:306:46: note: expanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'
  306 |   asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__))
      |                                              ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defines2/mutable_s2shape_index.cc :a171b:s1l:_ nwarning: u'__COUNTER__' is a C2y extension [-Wc2y-extensions]l
lab  l171e |  S_2N_uDlElFaIbNlEe_
d      o| u                      ^b
le(
      | ^
In file included from s2/s1angle.cc:18../src/s2/base/commandlineflags.h:
:In file included from 30../src/s2/s1angle.h::328::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'S2_DEFINE_double'25
:
In file included from ../src/s2/util/coding/coder.h:   3630:
 | In file included from  ../src/s2/base/casts.h :A36B:
SIn file included from L../src/s2/base/logging.h_:F21L:
AIn file included from G/usr/local/clang/include/absl/log/check.h(:d37o:
uIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21,:
 /usr/local/clang/include/absl/log/internal/check_op.hn:a522m:e17,:  dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
aul  t522_ | v a l u ec,o ndsets ccrhiaprt*i oanb)s
l      _| n  ^o
nn/usr/local/clang/include/absl/flags/flag.hu:l170l: 3e:x pnote: rexpanded from macro 'ABSL_FLAG't
ex  t170) | ; 
       A| B                ^S
L_/usr/local/clang/include/absl/base/nullability.hF:L241A:G22_:I Mnote: Pexpanded from macro 'absl_nonnull'L
(T  y241p | e#,d enfaimnee,  adbesfla_unlotn_nvualllu e_,N ohnenlupl)l

            | |   ^                     ^

/usr/local/clang/include/absl/flags/flag.h:272:3: note: expanded from macro 'ABSL_FLAG_IMPL'
  272 |   ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help)                     \
      |   ^
/usr/local/clang/include/absl/flags/flag.h:250:44: note: expanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'
  250 |   constexpr auto FLAGS_help_storage_##name ABSL_INTERNAL_UNIQUE_SMALL_NAME() \
      |                                            ^
/usr/local/clang/include/absl/base/optimization.h:306:46: note: expanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'
  306 |   asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__))
      |                                              ^
s2/mutable_s2shape_index.cc:897:12: warning: variable 'i' set but not used [-Wunused-but-set-variable]
  897 |   for (int i = 0; num_edges_left > 0; ++i) {
      |            ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   inIn file included from ts2/s1chord_angle.cc*: 18a:
bIn file included from s../src/s2/s1chord_angle.hl:_29n:
oIn file included from n../src/s2/s1angle.hn:u28:
lIn file included from l../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | in lpi_n;e
       u| i       ^n
t16/usr/local/clang/include/absl/base/nullability.h_:t241 :L22o:a dnote: 1expanded from macro 'absl_nonnull'6
(c  o241n | s#td evfoiinde*  aabbssll__nnoonnnnuullll  _pN)o n{n
u      l| l                                   ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {In file included from 
s2/s1angle.cc      :| 18                          ^:

In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.ha:b82s:
lIn file included from _/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/crc/crc32c.hl:l32 :
_/usr/local/clang/include/absl/strings/str_format.hN:o380n:n43u:l lwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
  380 | std::string& StrAppendFormat(std::string* absl_nonIn file included from ns2/s1chord_angle.ccu:l18l:
 In file included from d../src/s2/s1chord_angle.hs:t29,:

In file included from       ../src/s2/s1angle.h| :                                          ^28
:
In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h24::
241In file included from :/usr/local/clang/include/absl/hash/hash.h22::89 :
In file included from note: /usr/local/clang/include/absl/hash/internal/hash.hexpanded from macro 'absl_nonnull':
79:
  /usr/local/clang/include/absl/base/internal/endian.h241: | 258#:d36e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s258l | _innolninnuel lu i_nNto3n2n_utl lL
o      a| d                     ^3
2(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline voIn file included from is2/s1angle.ccd: 18S:
tIn file included from o../src/s2/s1angle.hr:e283:
2In file included from (../src/s2/s2point.hv:o27i:
dIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from p/usr/local/clang/include/absl/strings/cord.h,: 82u:
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:3232:
_In file included from t/usr/local/clang/include/absl/crc/crc32c.h :v32):
 /usr/local/clang/include/absl/strings/str_format.h{:
440      :| 24                          ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   note: 440expanded from macro 'absl_nonnull' | 
in  t241  | F#PdreifnitnFe( satbds:l:_FnIoLnEn*u lalb s_lN_onnonnunlull
l       | o                     ^u
tput, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s1chord_angle.cc241: | 18#:
dIn file included from e../src/s2/s1chord_angle.hf:i29n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o24n:
nIn file included from u/usr/local/clang/include/absl/hash/hash.hl:l89 :
_In file included from N/usr/local/clang/include/absl/hash/internal/hash.ho:n79n:
u/usr/local/clang/include/absl/base/internal/endian.hl:l266
:      36| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
In file included from       s2/s1angle.cc| :                                   ^18
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s82l:
_In file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/crc/crc32c.hl: 32_:
N/usr/local/clang/include/absl/strings/str_format.ho:n469n:u20l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  469 | int SNPrintF(char* absl_nonnull output, std::In file included from ss2/s1chord_angle.cci:z18e:
_In file included from t../src/s2/s1chord_angle.h :s29i:
zIn file included from e../src/s2/s1angle.h,:
28      :
| In file included from                    ^../src/s2/s2point.h
:24:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/hash/hash.h241::8922:
:In file included from  /usr/local/clang/include/absl/hash/internal/hash.h:note: 79expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/base/internal/endian.h:  270241: | 27#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a270b | siln_lnionnen uvloli d_ NSotnonruel6l4
(      v| o                     ^i
d* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1angle.cc:18:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s1interval.cc -o s2/s1interval.o
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #d365e warningfsi generatedn.
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1chord_angle.cc:18:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
367 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2boolean_operation.cc -o s2/s2boolean_operation.o
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s1interval.cc:18:
In file included from ../src/s2/s1interval.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
142 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2buffer_operation.cc -o s2/s2buffer_operation.o
577 warnings generated.
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43s2/s2buffer_operation.cc:
:In file included from 49/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19../src/s2/s2buffer_operation.h:
:In file included from 25/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2point.h:
:In file included from 24/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/hash/hash.h:
:89:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h954::7952:
:In file included from  /usr/local/clang/include/absl/base/internal/endian.h:warning: 26:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]954
 |   static    39b | oionll iCnael luVionitd1P6t_rtF uUnncatliiognn(ecdoLnosatd 1C6o(ncdointsito nv*o iadb*s la_bnsoln_nnuolnln ucl)l; 
p      )|                                                     ^{

      |                                             ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCIn file included from as2/s2buffer_operation.ccl:l49F:
uIn file included from n../src/s2/s2buffer_operation.hc:25t:
iIn file included from o../src/s2/s1angle.hn:(28:
cIn file included from o../src/s2/s2point.hn:s24t:
 In file included from C/usr/local/clang/include/absl/hash/hash.ho:n89d:
iIn file included from t/usr/local/clang/include/absl/hash/internal/hash.hi:o79n:
*In file included from  /usr/local/clang/include/absl/base/internal/endian.ha:b26s:
l/usr/local/clang/include/absl/base/internal/unaligned_access.h_:45n:o45n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 c)   ;45
 |       i| n                                                   ^l
ine/usr/local/clang/include/absl/base/nullability.h :u241i:n22t:3 2note: _expanded from macro 'absl_nonnull't
 U  n241a | l#idgenfeidnLeo aadb3s2l(_cnoonnsntu lvlo i_dN*o nanbuslll_
n      o| n                     ^n
ull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2boolean_operation.cc#:d67e:
fIn file included from i../src/s2/s2boolean_operation.hn:e26 :
aIn file included from b../src/s2/s2builder.hs:l31_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h :_19N:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* In file included from as2/s2buffer_operation.ccb:s49l:
_In file included from n../src/s2/s2buffer_operation.ho:n25n:
uIn file included from l../src/s2/s1angle.hl: 28c:
)In file included from ;../src/s2/s2point.h
:      24| :
                                                 ^In file included from 
/usr/local/clang/include/absl/hash/hash.h:89/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/hash/internal/hash.h::2279::
 In file included from /usr/local/clang/include/absl/base/internal/endian.hnote: :26expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/base/internal/unaligned_access.h:  51241: | 45:# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine    51a | bisnll_innoen nuuilnlt 6_4N_otn nUunlall
i      g| n                     ^e
dLoad64(const void* abIn file included from ss2/s2boolean_operation.ccl:_67n:
oIn file included from n../src/s2/s2boolean_operation.hn:u26l:
lIn file included from  ../src/s2/s2builder.hp:)31 :
{In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h      :| 43                                            ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:/usr/local/clang/include/absl/base/nullability.h19::
241In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h22::59 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f961i:n34e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o961n | n u lslt a_tNiocn nbuololl
       C| a                     ^l
lByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2buffer_operation.ccl: 49_:
NIn file included from o../src/s2/s2buffer_operation.hn:n25u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void In file included from Us2/s2boolean_operation.ccn:a67l:
iIn file included from g../src/s2/s2boolean_operation.hn:e26d:
SIn file included from t../src/s2/s2builder.ho:r31e:
1In file included from 6/usr/local/clang/include/absl/container/flat_hash_set.h(:v43o:
iIn file included from d/usr/local/clang/include/absl/container/hash_container_defaults.h*: 19a:
bIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:_59n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hp:,31 :
u/usr/local/clang/include/absl/synchronization/mutex.hi:n975t:1316:_ twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
) {  
975       | |                                     ^ 
in/usr/local/clang/include/absl/base/nullability.hl:i241n:e22 :v onote: iexpanded from macro 'absl_nonnull'd
 R  e241a | d#Cdaelflibnaec ka(bTs*l _anbosnln_unloln n_uNloln ncuallll
b      a| c                     ^k
) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2buffer_operation.cc| :                     ^49
:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.hs2/s2boolean_operation.cc::6167::
36In file included from :../src/s2/s2boolean_operation.h :26warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2builder.h:31:
In file included from    /usr/local/clang/include/absl/container/flat_hash_set.h61: | 43i:
nIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hi:n19e:
 In file included from v/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:i59d:
 In file included from U/usr/local/clang/include/absl/strings/cord.hn:a94l:
iIn file included from g/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31d:
S/usr/local/clang/include/absl/synchronization/mutex.ht:o979r:e433:2 (warning: vtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
id*   a979b | s l _sntoantniucl lb opo,l  uAilnwta3y2s_Ttr uve)( c{o
n      s| t                                   ^ 
Co/usr/local/clang/include/absl/base/nullability.hn:d241i:t22i:o nnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea)b s{l _rneotnunrunl lt r_uNeo;n n}u
l      l| 
                                          ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnuIn file included from ls2/s2buffer_operation.ccl: 49c:
)In file included from  ../src/s2/s2buffer_operation.h{:
25      :
| In file included from                                                    ^../src/s2/s1angle.h
:28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24124::
22In file included from :/usr/local/clang/include/absl/hash/hash.h :89note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h:79  :
241 | /usr/local/clang/include/absl/base/internal/endian.h#:d160e:f36i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n160o | ninnulliln e_ Nuoinnntu1l6l_
t       | L                     ^o
ad16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2boolean_operation.ccn:u67l:
lIn file included from 
../src/s2/s2boolean_operation.h      :| 26                     ^:

In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CasIn file included from ts2/s2buffer_operation.ccA:n49d:
CIn file included from a../src/s2/s2buffer_operation.hl:l25F:
uIn file included from n../src/s2/s1angle.hc:t28i:
oIn file included from n../src/s2/s2point.h(:c24o:
nIn file included from s/usr/local/clang/include/absl/hash/hash.ht: 89C:
oIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hd:i79t:
i/usr/local/clang/include/absl/base/internal/endian.ho:n164*: 27a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n164u | liln lci)n e{ 
v      o| i                                                     ^d
 St/usr/local/clang/include/absl/base/nullability.ho:r241e:1226:( vnote: oexpanded from macro 'absl_nonnull'i
d*   241a | b#sdle_fnionnen ualbls lp_,n ouninnutl1l6 __tN ovn)n u{l
l      
|                                 ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2buffer_operation.cc:/usr/local/clang/include/absl/synchronization/mutex.h49::
1230In file included from :../src/s2/s2buffer_operation.h12::25 :
In file included from warning: ../src/s2/s1angle.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:24 :
1230In file included from  | /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from b/usr/local/clang/include/absl/hash/internal/hash.ho:o79l:
 /usr/local/clang/include/absl/base/internal/endian.h(:*168a:b36s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l168l |  ifnulnicn)e( Tu*i natb3s2l__tn uLlolaadb3i2l(ictoyn_sutn kvnooiwdn*) ,a
b      s| l           ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :p )note:  expanded from macro 'absl_nonnull'{

      |                                      ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _NonnIn file included from us2/s2boolean_operation.ccl:l67
:
      In file included from | ../src/s2/s2boolean_operation.h                     ^:
26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_In file included from ns2/s2buffer_operation.cco:n49n:
uIn file included from l../src/s2/s2buffer_operation.hl: 25f:
uIn file included from n../src/s2/s1angle.hc:)28(:
TIn file included from *../src/s2/s2point.h :a24b:
sIn file included from l/usr/local/clang/include/absl/hash/hash.h_:n89u:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.ha:b79i:
l/usr/local/clang/include/absl/base/internal/endian.hi:t172y:_27u:n kwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn)  ,172
 |       i| n                                 ^l
in/usr/local/clang/include/absl/base/nullability.he: 289v:o34i:d  note: Sexpanded from macro 'absl_nullability_unknown't
ore  32892 | (#vdoeifdi*n ea basbls_ln_onnunlullalb ipl,i tuyi_nutn3k2n_otw nv )_ N{u
l      l| _                          ^u
ns/usr/local/clang/include/absl/base/nullability.hp:e241c:i22f:i enote: dexpanded from macro 'absl_nonnull'

      |                                    ^241
 | #define absl_nonnIn file included from us2/s2boolean_operation.ccl:l67 :
_In file included from N../src/s2/s2boolean_operation.ho:n26n:
uIn file included from l../src/s2/s2builder.hl:
31      :
| In file included from                      ^/usr/local/clang/include/absl/container/flat_hash_set.h
:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullabilitIn file included from ys2/s2buffer_operation.cc_:u49n:
kIn file included from n../src/s2/s2buffer_operation.ho:w25n:
 In file included from a../src/s2/s1angle.hr:g28):

In file included from       ../src/s2/s2point.h| :       ^24
:
In file included from /usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/base/nullability.h::89289:
:In file included from 34/usr/local/clang/include/absl/hash/internal/hash.h:: 79:
note: /usr/local/clang/include/absl/base/internal/endian.hexpanded from macro 'absl_nullability_unknown':
176:36:   289 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n176e |  ianblsiln_en uulilnatb6i4l_itt yL_ouandk6n4o(wcno n_sNtu lvlo_iudn*s paebcsilf_ineodn
n      u| l                                 ^l
 p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:In file included from 19s2/s2buffer_operation.cc:
:In file included from 49/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59../src/s2/s2buffer_operation.h:
:In file included from 25/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2point.h:
:24/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1241/usr/local/clang/include/absl/hash/hash.h::1289::
 In file included from /usr/local/clang/include/absl/hash/internal/hash.hwarning: :79type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/base/internal/endian.h:180: 271241: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 bo  o180l |  i(n*laibnsel _vnooindn uSltlo rfeu6n4c()v(oTi*d *a basbls_ln_unlolnanbuillli tpy,_ uuniknnto6w4n_)t, 
v      )|             ^{

      | /usr/local/clang/include/absl/base/nullability.h                          ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | #fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19In file included from :
s2/s2buffer_operation.ccIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h49::
59In file included from :
../src/s2/s2buffer_operation.h/usr/local/clang/include/absl/strings/cord.h::251301:
:In file included from 56../src/s2/s1angle.h:: 28warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:24:
In file included from  /usr/local/clang/include/absl/hash/hash.h1301: | 89i:
nIn file included from l/usr/local/clang/include/absl/hash/internal/hash.hi:n89e:
 In file included from v/usr/local/clang/include/absl/numeric/int128.ho:i41d:
 C/usr/local/clang/include/absl/types/compare.ho:r78d::22::I nwarning: l'enable_if' is a clang extension [-Wgcc-compat]i
neRep:   :78C | o m m i t T r_e_ea(tctornisbtu tCeo_r_d(R(eepn*a balbes_li_fn(unl l=a=b l0e,  o"lOdn_lrye pl,i
t      e| r                                                       ^a
l /usr/local/clang/include/absl/base/nullability.h`:0257`: 23i:s  note: aexpanded from macro 'absl_nullable'l
lo  w257e | d#.d"e)f)i)n e{ }a
b      s| l                     ^_
nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VIn file included from Ls2/s2boolean_operation.cco:g67S:
iIn file included from t../src/s2/s2boolean_operation.he:*26 :
aIn file included from b../src/s2/s2builder.hs:l35_:
nIn file included from u../src/s2/id_set_lexicon.hl:l28a:
bIn file included from l../src/s2/base/logging.he: 21v:
)In file included from ;/usr/local/clang/include/absl/log/check.h
:      37| :
              ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
257In file included from :/usr/local/clang/include/absl/log/internal/check_op.h23::41 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/strip.h
:26  :
257In file included from  | /usr/local/clang/include/absl/log/internal/log_message.h#:d53e:
fi/usr/local/clang/include/absl/types/source_location.hn:e113 :a19b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ullabl  e113  | _ N u l l a bcloen
s      t|                        ^c
har* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builder_graph.cc -o s2/s2builder_graph.o
nnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s2/s2boolean_operation.cc
:67:
In file included from   ../src/s2/s2boolean_operation.h213: | 26 :
 In file included from u../src/s2/s2builder.hs:i35n:
gIn file included from  ../src/s2/id_set_lexicon.hc:o28n:
sIn file included from t../src/s2/base/logging.h_:p21o:
iIn file included from n/usr/local/clang/include/absl/log/check.ht:e37r:
 In file included from =/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t276 :T13*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n  u276l | lcaobnislti tvyo_iudn*k naobwsnl;_
n      u| l                                 ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e289 :o34p:e rnote: aexpanded from macro 'absl_nullability_unknown't
or  <289< | (#sdtedf:i:noes tarbesalm_&n,u
l      l| a            ^b
il/usr/local/clang/include/absl/base/nullability.hi:t257y:_23u:n knote: nexpanded from macro 'absl_nullable'o
wn   257_ | N#udlelf_iunnes paebcsilf_ineudl
l      a| b                                 ^l
e _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONIn file included from Ns2/s2buffer_operation.ccU:L49L:
 In file included from c../src/s2/s2buffer_operation.ho:n25s:
tIn file included from  ../src/s2/s1angle.hc:h28a:
rIn file included from *../src/s2/s2point.h :a25b:
sIn file included from l../src/s2/util/coding/coder.h_:n36o:
nIn file included from n../src/s2/base/casts.hu:l34l:
 In file included from M/usr/local/clang/include/absl/log/log.ha:k209e:
CIn file included from h/usr/local/clang/include/absl/log/internal/log_impl.he:c22k:
OIn file included from p/usr/local/clang/include/absl/log/internal/log_message.hS:t47r:
iIn file included from n/usr/local/clang/include/absl/log/internal/structured_proto.hg:(27
:
      In file included from | /usr/local/clang/include/absl/log/internal/proto.h                                           ^:
34:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/types/span.h::241794::228::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241 | #  d794e | f i n e  Ta*b salb_snlo_nnnuulllla b_lNeo npnturl lA
B      S| L                     ^_
ATTRIBUTE_In file included from Ls2/s2boolean_operation.ccI:F67E:
TIn file included from I../src/s2/s2boolean_operation.hM:E26_:
BIn file included from O../src/s2/s2builder.hU:N35D:
,In file included from  ../src/s2/id_set_lexicon.hs:i28z:
eIn file included from ../src/s2/base/logging.h:_21t:
 In file included from s/usr/local/clang/include/absl/log/check.hi:z37e:
)In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hn:o21e:
x/usr/local/clang/include/absl/log/internal/check_op.hc:e429p:t31 :{ 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
       ^
  /usr/local/clang/include/absl/base/nullability.h429: | 257 : 23 :  Tnote: 1expanded from macro 'absl_nullable' 
v1  ,257  | T#2d evf2i,n ec oanbsstl _cnhualrl*a balbes l__Nnuolnlnaubllle 
e      x| p                      ^r
text) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2buffer_operation.cca:b49s:
lIn file included from _../src/s2/s2buffer_operation.hn:o25n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl:
36      :
| In file included from                      ^../src/s2/base/casts.h
:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T>In file included from  s2/s2boolean_operation.ccM:a67k:
eIn file included from C../src/s2/s2boolean_operation.ho:n26s:
tIn file included from S../src/s2/s2builder.hp:a35n:
(In file included from T../src/s2/id_set_lexicon.h*: 28a:
bIn file included from s../src/s2/base/logging.hl:_21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :b21e:
g/usr/local/clang/include/absl/log/internal/check_op.hi:n432
:      13| :                               ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23  :432  | note: cexpanded from macro 'absl_nullable'o
ns  t257  | c#hdaerf*i naeb salb_snlo_nnnuulllla bMlaek e_CNhuelclkaObplSet
r      i| n                      ^g
(T1 v1, T2 vIn file included from 2s2/s2buffer_operation.cc,:
49      :
| In file included from             ^../src/s2/s2buffer_operation.h
:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h241::2822:
:In file included from  ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from ../src/s2/util/coding/coder.h  :24136 | :
#In file included from d../src/s2/base/casts.he:f34i:
nIn file included from e/usr/local/clang/include/absl/log/log.h :a209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h_:n22:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hn:u47l:
lIn file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h_:N27o:
nIn file included from n/usr/local/clang/include/absl/log/internal/proto.hu:l34l:

/usr/local/clang/include/absl/types/span.h      :| 801                     ^:
32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2boolean_operation.cc:  67801:
 | In file included from  ../src/s2/s2boolean_operation.h : 26 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21T:
*/usr/local/clang/include/absl/log/internal/check_op.h :a433b:s56l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab  l433e |   e n d )   n o e x c e p t   { 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e  caobnsslt_n uclhlaarb*l ea b_sNlu_lnloanbnluel
l       | e                      ^x
prtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_In file included from Xs2/s2buffer_operation.cc(:i49n:
sIn file included from e../src/s2/s2buffer_operation.hr:t25_:
oIn file included from r../src/s2/s1angle.h_:a28s:
sIn file included from i../src/s2/s2point.hg:n25,:
 In file included from i../src/s2/util/coding/coder.hn:s36e:
rIn file included from t../src/s2/base/casts.h_:o36r:
_In file included from a../src/s2/base/logging.hs:s21i:
gIn file included from n/usr/local/clang/include/absl/log/check.h_:i37m:
pIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h,: 21&:
&,/usr/local/clang/include/absl/log/internal/check_op.h :c180o:n42s:t  warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 false  ,180
 |       A| B  ^S
L_/usr/local/clang/include/absl/container/internal/btree_container.hA:T509T:R52I:B Unote: Texpanded from macro 'ABSL_INTERNAL_X'E
_P  U509R | E _ F U N C T I O N  AcBoSnLs_tI NcThEaRrN*A La_bAsTlT_RnIoBnUnTuEl_lC AMPaTkUeRCEhDe_cBkYF(atihliSst)r)i,n g ( 
        |                                           ^ 
     /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241\ | 
#      d| e                                                   ^f
in/usr/local/clang/include/absl/container/internal/common.he: 32a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_false' defined hereo
nnu   l32l |  #_dNeofninnuel lA
B      S| L                     ^_
INTERNAL_IF_In file included from fs2/s2buffer_operation.cca:l49s:
eIn file included from (../src/s2/s2buffer_operation.hi:f25_:
sIn file included from a../src/s2/s1angle.ht:i28s:
fIn file included from i../src/s2/s2point.he:d25,:
 In file included from .../src/s2/util/coding/coder.h.:.36):
 In file included from _../src/s2/base/casts.h_:V36A:
_In file included from A../src/s2/base/logging.hR:G21S:
_In file included from _/usr/local/clang/include/absl/log/check.h
:      37| :
        ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2boolean_operation.cc
:67:
In file included from   ../src/s2/s2boolean_operation.h181: | 26 :
 In file included from  ../src/s2/s2builder.h :c36o:
nIn file included from s../src/s2/mutable_s2shape_index.ht: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl::67::
S/usr/local/clang/include/absl/container/internal/btree_container.ht:a540t:u3s:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_  n540o | n n uAlBlS Ls_tIaNtTuEsR,N AcLo_nXs(ti ncshearrt*_ oarb_sals_sniognnn,u liln sperretf_ioxr)_;a
s      s| i                        ^g
n_/usr/local/clang/include/absl/base/nullability.hi:m241p:l22,:  &note: &expanded from macro 'absl_nonnull',
 c  o241n | s#td e&f,i nfea lasbes,l
_      n| o  ^n
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l511 :_52N:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll
        511|  |                      ^ 
         ABIn file included from Ss2/s2buffer_operation.ccL:_49I:
NIn file included from T../src/s2/s2buffer_operation.hE:R25N:
AIn file included from L../src/s2/s1angle.h_:A28T:
TIn file included from R../src/s2/s2point.hI:B25U:
TIn file included from E../src/s2/util/coding/coder.h_:C36A:
PIn file included from T../src/s2/base/casts.hU:R36E:
DIn file included from _../src/s2/base/logging.hB:Y21(:
tIn file included from h/usr/local/clang/include/absl/log/check.hi:s37):
)In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 181 : 58 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       181  |          c\o
n      s| t                                                   ^ 
ab/usr/local/clang/include/absl/container/internal/common.hs:l32:::9S:t anote: tmacro 'ABSL_INTERNAL_IF_false' defined hereu
s*    32a | b#sdle_fnionnen uAlBlS Ls_tIaNtTuEsR,N AcLo_nIsFt_ fcahlasre*( iafb_ssla_tniosnfniueldl,  p.r.e.f)i x_)_;V
A      _| A                                                         ^R
GS/usr/local/clang/include/absl/base/nullability.h_:_241
:      22| :        ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/container/internal/btree_container.h37::
544In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h3::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
189:28:   warning: 544type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  ABS  L189_ | IiNnTlEiRnNeA Lc_oXn(sitn saebrstl_:o:rS_taastsuisg*n ,a bisnls_enrotn_nourl_la sAssiSgtna_tiumsp(lc,o n&s&t,  acbosnls:t: S&t,a ttursu&e ,s
)       | {  ^

      | /usr/local/clang/include/absl/container/internal/btree_container.h                           ^:
509:52:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'ABSL_INTERNAL_X':
22:   note: 509expanded from macro 'absl_nonnull' | 
     241  |  # d e f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31In file included from  | s2/s2buffer_operation.cc#:d49e:
fIn file included from i../src/s2/s2buffer_operation.hn:e25 :
AIn file included from B../src/s2/s1angle.hS:L28_:
IIn file included from N../src/s2/s2point.hT:E25R:
NIn file included from A../src/s2/util/coding/coder.hL:_36I:
FIn file included from _../src/s2/base/casts.ht:r36u:
eIn file included from (../src/s2/base/logging.hi:f21_:
sIn file included from a/usr/local/clang/include/absl/log/check.ht:i37s:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.he:d21,:
 /usr/local/clang/include/absl/log/internal/check_op.h.:.193.:)21 :i fwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
atis  f193i | ecdo
n      s| t        ^ 
absl::Status* abslIn file included from _s2/s2boolean_operation.ccn:o67n:
nIn file included from u../src/s2/s2boolean_operation.hl:l26 :
AIn file included from s../src/s2/s2builder.hS:t36a:
tIn file included from u../src/s2/mutable_s2shape_index.hs:(30c:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hs:t67 :
a/usr/local/clang/include/absl/container/internal/btree_container.hb:s544l::3::S twarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
usOr<  T544> | &   sA)B S{L
_      I| N                    ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22X:( inote: nexpanded from macro 'absl_nonnull's
er  t241_ | o#rd_eafsisnieg na,b siln_sneorntn_uolrl_ a_sNsoingnnu_lilm
p      l| ,                     ^ 
&&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      In file included from | s2/s2buffer_operation.cc                  ~~~~~~:
49:
In file included from ../src/s2/s2buffer_operation.h/usr/local/clang/include/absl/container/internal/btree_container.h::25509:
:In file included from 47../src/s2/s1angle.h:: 28note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2point.h:25:
In file included from   ../src/s2/util/coding/coder.h509: | 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
A/usr/local/clang/include/absl/log/internal/check_op.hL:_202A:T46T:R Iwarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
TE_  C202A | P T UeRxEpDl_iBcYi(tt hCihse)c)k,O p M e s s a g e B u i l d e r ( c o n s t   c h\a
r      *|                                                ^~~~a
bsl_non/usr/local/clang/include/absl/container/internal/btree_container.hn:u544l:l3 :e xwarning: ppassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
t/usr/local/clang/include/absl/container/internal/btree_container.he:x511t:)52;:
       note: | expanded from macro 'ABSL_INTERNAL_X'                                             ^

/usr/local/clang/include/absl/base/nullability.h  :511241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | A#BdSeLf_iInNeT EaRbNsAlL__nAoTnTnRuIlBlU T_EN_oCnAnPuTlUlR
E      D| _                     ^B
Y(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #defineIn file included from  s2/s2buffer_operation.ccA:B49S:
LIn file included from _../src/s2/s2buffer_operation.hI:N25T:
EIn file included from R../src/s2/s1angle.hN:A28L:
_In file included from I../src/s2/s2point.hF:_25f:
aIn file included from l../src/s2/util/coding/coder.hs:e36(:
iIn file included from f../src/s2/base/casts.h_:s36a:
tIn file included from i../src/s2/base/logging.hs:f21i:
eIn file included from d/usr/local/clang/include/absl/log/check.h,: 37.:
.In file included from ./usr/local/clang/include/absl/log/internal/check_impl.h): 21_:
_/usr/local/clang/include/absl/log/internal/check_op.hV:A209_:A15R:G Swarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_

      |         ^  
209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValIn file included from us2/s2buffer_operation.cce:,49 :
MIn file included from V../src/s2/s2buffer_operation.ha:l25u:
eIn file included from ,../src/s2/s1angle.h :.28.:
.In file included from )../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h\:
36      :
| In file included from         ^../src/s2/base/casts.h
:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #def/usr/local/clang/include/absl/container/internal/btree_container.hi:n546e: 3a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
null  a546b | l e  A_BNSuLl_lIaNbTlEeR
N      A| L                      ^_
X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.hIn file included from :s2/s2buffer_operation.cc36::
49In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2buffer_operation.h30::
25In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s1angle.h67::
28/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 551../src/s2/s2point.h::7925::
 In file included from warning: ../src/s2/util/coding/coder.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
36:
In file included from ../src/s2/base/casts.h:  36551:
In file included from ../src/s2/base/logging.h:21:
In file included from  | /usr/local/clang/include/absl/log/check.h : 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hL:_21I:
NT/usr/local/clang/include/absl/log/internal/check_op.hE:R276N:A13L:_ Xwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nser  t276_ | ocro_nassts ivgoni,d *i nasbesrlt__nourl_laasbslieg no_piemrpalt,o r&<&<,( s&t&d,: :foasltsree,a mt&r,u
e      )| ;            ^

      |                                                                               ^/usr/local/clang/include/absl/base/nullability.h
:257:/usr/local/clang/include/absl/container/internal/btree_container.h23::496 :note: 9expanded from macro 'absl_nullable':
 note:   macro 'ABSL_INTERNAL_X' defined here257
 | #d  e496f | i#ndee faibnsel _AnBuSlLl_aIbNlTeE R_NNAuLl_lXa(bFluen
c      ,|                        ^C
allee, KQuaIn file included from ls2/s2buffer_operation.cc,: 49M:
QIn file included from u../src/s2/s2buffer_operation.ha:l25,:
 In file included from K../src/s2/s1angle.hV:a28l:
uIn file included from e../src/s2/s2point.h,: 25M:
VIn file included from a../src/s2/util/coding/coder.hl:u36e:
,In file included from  ../src/s2/base/casts.h.:.36.:
)In file included from  ../src/s2/base/logging.h : 21 :
 In file included from \/usr/local/clang/include/absl/log/check.h
:      37| :
        ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullab/usr/local/clang/include/absl/container/internal/btree_container.hl:e551
:      3| :                      ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(In file included from is2/s2buffer_operation.ccn:s49e:
rIn file included from t../src/s2/s2buffer_operation.h_:o25r:
_In file included from a../src/s2/s1angle.hs:s28i:
gIn file included from n../src/s2/s2point.h,: 25i:
nIn file included from s../src/s2/util/coding/coder.he:r36t:
_In file included from o../src/s2/base/casts.hr:_36a:
sIn file included from s../src/s2/base/logging.hi:g21n:
_In file included from i/usr/local/clang/include/absl/log/check.hm:p37l:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h&:&21,:
 /usr/local/clang/include/absl/log/internal/check_op.h&:&278,: 13f:a lwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
, t  r278u | ec)o;n
s      t|    ^v
oi/usr/local/clang/include/absl/container/internal/btree_container.hd:*509 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
ull  a509b | l e   o p e r a t o rA<B<S(Ls_tIdN:T:EoRsNtArLe_aAmT&T,R IsBtUdT:E:_nCuAlPlTpUtRrE_Dt_)B;Y
(      t| h            ^i
s)/usr/local/clang/include/absl/base/nullability.h):,257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _\n
u      l| l                                                   ^a
bl/usr/local/clang/include/absl/container/internal/common.he: 32_:N9u:l lnote: amacro 'ABSL_INTERNAL_IF_false' defined hereb
le
         32|  |                       ^#
define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   In file included from As2/s2buffer_operation.ccB:S49L:
_In file included from I../src/s2/s2buffer_operation.hN:T25E:
RIn file included from N../src/s2/s1angle.hA:L28_:
XIn file included from (../src/s2/s2point.hi:n25s:
eIn file included from r../src/s2/util/coding/coder.ht:_36o:
rIn file included from _../src/s2/base/casts.ha:s36s:
iIn file included from g../src/s2/base/logging.hn:,21 :
iIn file included from n/usr/local/clang/include/absl/log/check.hs:e37r:
tIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.h:o21r:
_/usr/local/clang/include/absl/log/internal/check_op.ha:s292s:i13g:n _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl,   &292& | ,c o&n&s,t  fcahlasre*,  atbrsule_)n;o
n      n| u  ^l
l/usr/local/clang/include/absl/container/internal/btree_container.h :o511p:e52:r anote: texpanded from macro 'ABSL_INTERNAL_X'o
r<<  (511s | t d : : b a s i c _ oAsBtSrLe_aImN<TcEhRaNrA,L _TArTaTiRtIsB>U&T,E
_      C| A            ^P
TU/usr/local/clang/include/absl/base/nullability.hR:E241D:_22B:Y (note: texpanded from macro 'absl_nonnull'h
is  )241) | )# d e f i n e   a b s l _ n o n n u l l   _ N o n\n
u      l| l                                                   ^

      | /usr/local/clang/include/absl/container/internal/common.h                     ^:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define AIn file included from Bs2/s2buffer_operation.ccS:L49_:
IIn file included from N../src/s2/s2buffer_operation.hT:E25R:
NIn file included from A../src/s2/s1angle.hL:_28I:
FIn file included from _../src/s2/s2point.ht:r25u:
eIn file included from (../src/s2/util/coding/coder.hi:f36_:
sIn file included from a../src/s2/base/casts.ht:i36s:
fIn file included from i../src/s2/base/logging.he:d21,:
 In file included from ./usr/local/clang/include/absl/log/check.h.:.37):
 In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hf:_21s:
a/usr/local/clang/include/absl/log/internal/check_op.ht:i293s:f49i:e dwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|         ^
  293 |             In file included from  s2/s2boolean_operation.cc : 67 :
 In file included from  ../src/s2/s2boolean_operation.h : 26 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
c/usr/local/clang/include/absl/container/internal/btree_container.ho:n551s:t3 :c hwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
* abs  l551_ | n o nAnBuSlLl_)I;N
T      E| R                                                ^N
AL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERIn file included from Ns2/s2buffer_operation.ccA:L49_:
XIn file included from (../src/s2/s2buffer_operation.hi:n25s:
eIn file included from r../src/s2/s1angle.ht:_28o:
rIn file included from _../src/s2/s2point.ha:s25s:
iIn file included from g../src/s2/util/coding/coder.hn:,36 :
iIn file included from n../src/s2/base/casts.hs:e36r:
tIn file included from _../src/s2/base/logging.ho:r21_:
aIn file included from s/usr/local/clang/include/absl/log/check.hs:i37g:
nIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hi:m21p:
l/usr/local/clang/include/absl/log/internal/check_op.h,: 295&:&20,:  &warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 tru  e295, |  ctornuset) ;s
i      g| n  ^e
d /usr/local/clang/include/absl/container/internal/btree_container.hc:h509a:r52*:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  o509n | n u l l   o p e r a tAoBrS<L<_(IsNtTdE:R:NbAaLs_iAcT_ToRsItBrUeTaEm_<CcAhPaTrU,R ETDr_aBiYt(st>h&i,s
)      )| ,                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n31u:l9l:  _note: Nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l | 
#      d| e                     ^f
ine ABSL_INTERNAL_IF_In file included from ts2/s2buffer_operation.ccr:u49e:
(In file included from i../src/s2/s2buffer_operation.hf:_25s:
aIn file included from t../src/s2/s1angle.hi:s28f:
iIn file included from e../src/s2/s2point.hd:,25 :
.In file included from .../src/s2/util/coding/coder.h.:)36 :
iIn file included from f../src/s2/base/casts.h_:s36a:
tIn file included from i../src/s2/base/logging.hs:f21i:
eIn file included from d/usr/local/clang/include/absl/log/check.h
:      37| :
        ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2boolean_operation.cc296: | 67 :
 In file included from  ../src/s2/s2boolean_operation.h : 26 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 553 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        553  |      A B ScLo_nIsNtT EsRiNgAnLe_dX (cihnasre*r ta_bosrl__ansosningunl,l )i;n
s      e| r                                                              ^t
_o/usr/local/clang/include/absl/base/nullability.hr:_241a:s22s:i gnote: nexpanded from macro 'absl_nonnull'_
im  p241l | ,# d&e&f,i n&e& ,a btsrlu_en,o ntnruulel) ;_
N      o| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ull/usr/local/clang/include/absl/container/internal/btree_container.h
:      509| :                     ^47
: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_In file included from Is2/s2buffer_operation.ccN:T49E:
RIn file included from N../src/s2/s2buffer_operation.hA:L25_:
AIn file included from T../src/s2/s1angle.hT:R28I:
BIn file included from U../src/s2/s2point.hT:E25_:
CIn file included from A../src/s2/util/coding/coder.hP:T36U:
RIn file included from E../src/s2/base/casts.hD:_36B:
YIn file included from (../src/s2/base/logging.ht:h21i:
sIn file included from )/usr/local/clang/include/absl/log/check.h):,37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 298 : 22 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       298  |  c o\n
s      t|                                                ^~~~u
nsigned/usr/local/clang/include/absl/container/internal/btree_container.h :c553h:a3r:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_511n:o52n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 op  e511r | a t o r < < ( s t d A:B:SbLa_sIiNcT_EoRsNtArLe_aAmT<TcRhIaBrU,T ET_rCaAiPtTsU>R&E,D
_      B| Y                     ^(
th/usr/local/clang/include/absl/base/nullability.hi:s241):)22):   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n\n
u      l| l                                                   ^ 
_N/usr/local/clang/include/absl/container/internal/common.ho:n31n:u9l:l 
note:       macro 'ABSL_INTERNAL_IF_true' defined here| 
                     ^
   31 | #define ABSL_In file included from Is2/s2buffer_operation.ccN:T49E:
RIn file included from N../src/s2/s2buffer_operation.hA:L25_:
IIn file included from F../src/s2/s1angle.h_:t28r:
uIn file included from e../src/s2/s2point.h(:i25f:
_In file included from s../src/s2/util/coding/coder.ha:t36i:
sIn file included from f../src/s2/base/casts.hi:e36d:
,In file included from  ../src/s2/base/logging.h.:.21.:
)In file included from  /usr/local/clang/include/absl/log/check.hi:f37_:
sIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.ht:i21s:
f/usr/local/clang/include/absl/log/internal/check_op.hi:e299d:
67      :|          ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |           In file included from      s2/s2boolean_operation.cc : 67 :
 In file included from  ../src/s2/s2boolean_operation.h : 26 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 553 : 3 :  cwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
st un  s553i | g n eAdB ScLh_aIrN*T EaRbNsAlL__nXo(ninnuslelr)t;_
o      r| _                                                                  ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g241n:,22 :i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen _aibmspll_,n o&n&n,u l&l& ,_ Ntornuneu,l lt
r      u| e                     ^)
;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(S/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                   t  r i n g\i
f      y| S                                              ^~~~i
nk* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTUREIn file included from Ds2/s2buffer_operation.cc_:B49Y:
(In file included from t../src/s2/s2buffer_operation.hh:i25s:
)In file included from )../src/s2/s1angle.h,: 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
In file included from ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37\:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                              ^~~~21
:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]561
:3: warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]428
 | /usr/local/clang/include/absl/container/internal/btree_container.hA:B511S:L52_:A Tnote: Texpanded from macro 'ABSL_INTERNAL_X'R
IBU  T511E | _ R E T U R N S _ N OANBNSULL_LI NcToEnRsNtA Lc_hAaTrT*R IaBbUsTlE__nCoAnPnTuUlRlE DM_aBkYe(Cthheicsk)O)p)S t r i n g ( 
        |                                             ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 \  
241       | | #                                                   ^d
ef/usr/local/clang/include/absl/container/internal/common.hi:n32e: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNAL_IF_In file included from fs2/s2buffer_operation.cca:l49s:
eIn file included from (../src/s2/s2buffer_operation.hi:f25_:
sIn file included from a../src/s2/s1angle.ht:i28s:
fIn file included from i../src/s2/s2point.he:d25,:
 In file included from .../src/s2/util/coding/coder.h.:.36):
 In file included from _../src/s2/base/casts.h_:V36A:
_In file included from A../src/s2/base/logging.hR:G21S:
_In file included from _/usr/local/clang/include/absl/log/check.h
:      37| :
        ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnullIn file included from  s2/s2boolean_operation.ccM:a67k:
eIn file included from C../src/s2/s2boolean_operation.hh:e26c:
kIn file included from O../src/s2/s2builder.hp:S36t:
rIn file included from i../src/s2/mutable_s2shape_index.hn:g30(:
TIn file included from 1/usr/local/clang/include/absl/container/btree_map.h :v671:
,/usr/local/clang/include/absl/container/internal/btree_container.h :T5642: 3v:2 ,warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|             ^
  /usr/local/clang/include/absl/base/nullability.h564: | 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(ei nasbesrlt__noorn_nauslsli g_nN,o ninnuslelr
t      _| o                     ^r
_assign_hiIn file included from ns2/s2buffer_operation.cct:_49i:
mIn file included from p../src/s2/s2buffer_operation.hl:,25 :
cIn file included from o../src/s2/s1angle.hn:s28t:
 In file included from &../src/s2/s2point.h,:
25      :
| In file included from   ^../src/s2/util/coding/coder.h
:36:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/base/casts.h509::3652:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'ABSL_INTERNAL_X'21
:
In file included from /usr/local/clang/include/absl/log/check.h:  37509:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
      ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | /usr/local/clang/include/absl/container/internal/btree_container.hA:B572S:L3_:L Owarning: Gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
INTE  R572N | A L _ADBESFLI_NIEN_TMEARKNEA_LC_HXE(CiKn_sOePr_tS_ToRrI_NaGs_sEiXgTnE,R Ni(ncsoenrstt_ ocrh_aars*s iagbns_lh_innotn_niumlpll),; 
c      o| n^s
t /usr/local/clang/include/absl/log/internal/check_op.h&:,450 &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509: | 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
      450  | A B S L _ I NxT,E RxN,A Lc_oAnTsTtR IcBhUaTrE*_ CaAbPsTlU_RnEoDn_nBuYl(lt)h
i      s| )                        ^)
, /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                                   ^o
nnu/usr/local/clang/include/absl/container/internal/common.hl:l31 :_9N:o nnote: nmacro 'ABSL_INTERNAL_IF_true' defined hereu
ll
         31|  |                      ^#
define ABSL_INTERNAL_IF_true(if_saIn file included from ts2/s2buffer_operation.cci:s49f:
iIn file included from e../src/s2/s2buffer_operation.hd:,25 :
.In file included from .../src/s2/s1angle.h.:)28 :
iIn file included from f../src/s2/s2point.h_:s25a:
tIn file included from i../src/s2/util/coding/coder.hs:f36i:
eIn file included from d../src/s2/base/casts.h
:      36| :
        ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461In file included from  | s2/s2boolean_operation.ccA:B67S:
LIn file included from _../src/s2/s2boolean_operation.hL:O26G:
_In file included from I../src/s2/s2builder.hN:T36E:
RIn file included from N../src/s2/mutable_s2shape_index.hA:L30_:
DIn file included from E/usr/local/clang/include/absl/container/btree_map.hF:I67N:
E/usr/local/clang/include/absl/container/internal/btree_container.h_:M572A:K3E:_ Cwarning: H'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
CK_OP  _572S | T R IANBGS_LE_XITNETRENR(N
A      L| _^X
(i/usr/local/clang/include/absl/log/internal/check_op.hn:s449e:r31t:_ onote: rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
ass  i449g | n ,  eixntseerrnt _toerm_palsastieg nc_ohnisntt _cihmaprl*,  acbosnls_tn o&n,n u&l&l, 
M      a| k  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
Che  c573k | O p S t r i n g (       \ 
        |                                ^ 
 t/usr/local/clang/include/absl/base/nullability.hr:u241e:,22 :f anote: lexpanded from macro 'absl_nonnull's
e,   241c | o#ndsetf_iintee raabtsolr_(nhoinnntu)l lA B_SNLo_nInNuTlElR
N      A| L                     ^_
COMMAIn file included from )s2/s2buffer_operation.cc;:
49      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2buffer_operation.h
:25:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s1angle.h::50928::
47In file included from :../src/s2/s2point.h :25note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/util/coding/coder.h:36:
In file included from   ../src/s2/base/casts.h509: | 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hL:_21I:
N/usr/local/clang/include/absl/log/internal/check_op.hT:E462R:N24A:L _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
TR  I462B | U T E _ CcAoPnTsUtR EsDi_gBnYe(dt hcihsa)r)*,  a b s l _ n o n n u l l ) ; 
        |                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :\22
:       | note:                                               ^~~~expanded from macro 'absl_nonnull'

  241 | #de/usr/local/clang/include/absl/container/internal/btree_container.hf:i572n:e3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_/usr/local/clang/include/absl/container/internal/btree_container.hn:o511n:n52u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'_
Non  n511u | l l 
        |                       ^ 
    ABIn file included from Ss2/s2buffer_operation.ccL:_49I:
NIn file included from T../src/s2/s2buffer_operation.hE:R25N:
AIn file included from L../src/s2/s1angle.h_:A28T:
TIn file included from R../src/s2/s2point.hI:B25U:
TIn file included from E../src/s2/util/coding/coder.h_:C36A:
PIn file included from T../src/s2/base/casts.hU:R36E:
DIn file included from _../src/s2/base/logging.hB:Y21(:
tIn file included from h/usr/local/clang/include/absl/log/check.hi:s37):
)In file included from /usr/local/clang/include/absl/log/internal/check_impl.h): 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 462 : 24 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 \  
241       | | #                                                   ^d
ef/usr/local/clang/include/absl/container/internal/common.hi:n32e: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNALIn file included from _s2/s2buffer_operation.ccI:F49_:
fIn file included from a../src/s2/s2buffer_operation.hl:s25e:
(In file included from i../src/s2/s1angle.hf:_28s:
aIn file included from t../src/s2/s2point.hi:s25f:
iIn file included from e../src/s2/util/coding/coder.hd:,36 :
.In file included from .../src/s2/base/casts.h.:)36 :
_In file included from _../src/s2/base/logging.hV:A21_:
AIn file included from R/usr/local/clang/include/absl/log/check.hG:S37_:
_In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21        ^:

/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERIn file included from Ns2/s2boolean_operation.cc(:
67      :
| In file included from ^../src/s2/s2boolean_operation.h
:26:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2builder.h449::3631:
:In file included from  ../src/s2/mutable_s2shape_index.h:note: 30expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from /usr/local/clang/include/absl/container/btree_map.h:67  :
449 | /usr/local/clang/include/absl/container/internal/btree_container.h : 574e:x3t:e rwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
temp  l574a | t e  AcBoSnLs_tI NcThEaRrN*A La_bXs(li_nnsoenrntu_lolr _MaaskseiCghne,c kiOnpsSetrrti_nogr(_ a s s\i
g      n| _                              ^h
in/usr/local/clang/include/absl/base/nullability.ht:_241i:m22p:l ,note:  expanded from macro 'absl_nonnull'c
on  s241t |  #&d,e f&i&n,e
       a| b  ^s
l_/usr/local/clang/include/absl/container/internal/btree_container.hn:o509n:n52u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'_
Non  n509u | l l 
        |                       ^ 
    AIn file included from Bs2/s2buffer_operation.ccS:L49_:
IIn file included from N../src/s2/s2buffer_operation.hT:E25R:
NIn file included from A../src/s2/s1angle.hL:_28A:
TIn file included from T../src/s2/s2point.hR:I25B:
UIn file included from T../src/s2/util/coding/coder.hE:_36C:
AIn file included from P../src/s2/base/casts.hT:U36R:
EIn file included from D../src/s2/base/logging.h_:B21Y:
(In file included from t/usr/local/clang/include/absl/log/check.hh:i37s:
)In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h,: 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 464 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     464  |          c o n s\t
       u| n                                                   ^s
ig/usr/local/clang/include/absl/container/internal/common.hn:e31d: 9c:h anote: rmacro 'ABSL_INTERNAL_IF_true' defined here*
 ab   s31l | _#ndoenfniunlel )A;B
S      L| _                         ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Inote: Fexpanded from macro 'absl_nonnull'_
tr  u241e | (#idfe_fsiantei safbiseld_,n o.n.n.u)l li f__Nsoantniuslfli
e      d| 
                     ^      
|         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2boolean_operation.ccIn file included from :../src/s2/s2point.h67::
25In file included from :
../src/s2/s2boolean_operation.hIn file included from :../src/s2/util/coding/coder.h26::
36In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/base/casts.h36::
36In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/base/logging.h30::
21In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/log/check.h67::
37:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h574::213:
:/usr/local/clang/include/absl/log/internal/check_op.h :464warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]26
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/base/nullability.h574: | 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(ei nabsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inslienret _coorn_satssiegxnp,r  icnosnesrtt _cohra_ra*s saibgsnl__hniunltl_aibmlpel ,n acmoen#s#tI m&p,l (& & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
       575  |             \ 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :t rnote: uexpanded from macro 'absl_nullable'e
,   t257r | u#ed,e fcionnes ta_bistle_rnautlolra(bhlien t_)N uAlBlSaLb_lIeN
T      E| R                      ^N
AL_COMMA)In file included from ;s2/s2buffer_operation.cc
:      49| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/btree_container.h::28509:
:In file included from 47../src/s2/s2point.h:: 25:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/util/coding/coder.h
:36:
In file included from ../src/s2/base/casts.h  :50936 | :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
I/usr/local/clang/include/absl/log/internal/check_op.hN:T502E:R1N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
TT/usr/local/clang/include/absl/log/internal/check_op.hR:I498B:U35T:E _note: Cexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'A
PTU  R498E | D _ B Y ( t hiinst) )v,1 ,   i n t   v 2 ,   c o n s t   c h a r *   a b\s
l      _| n                                              ^~~~o
nnull expr/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thist))e)x t )   {                                   \ 
       \| 
                                  ^      
|                                                    ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/common.h241::3122::9 : note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_true' defined here

  241    | 31# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_utlrlu
e      (| i                     ^f
_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {In file included from  s2/s2boolean_operation.cc : 67 :
 In file included from  ../src/s2/s2boolean_operation.h : 26 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h :\30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                                  ^:
67:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h::241579::223::  note: warning: expanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  241 | #  d579e | f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lX (_iNnosnenrutl_lo
r      _| a                     ^s
sign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl,In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 &&, const &,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2buffer_operation.cc::51149::
52In file included from :../src/s2/s2buffer_operation.h :25note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h  :51125 | :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
AIn file included from B../src/s2/base/logging.hS:L21_:
IIn file included from N/usr/local/clang/include/absl/log/check.hT:E37R:
NIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hL:_21A:
T/usr/local/clang/include/absl/log/internal/check_op.hT:R504I:B1U:T Ewarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C
AP/usr/local/clang/include/absl/log/internal/check_op.hT:U497R:E32D:_ Bnote: Yexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'(
this))  )497  |      i n l i n e   c o n s t e x p r   c o n s\t
       c| h                                                   ^a
r* /usr/local/clang/include/absl/container/internal/common.ha:b31s:l9_:n unote: lmacro 'ABSL_INTERNAL_IF_true' defined herel
abl   e31  | n#admeef#i#nIem pAlB(S L _ I N T E R N A L _ I F _ t r u e (\i
f      _| s                               ^a
ti/usr/local/clang/include/absl/base/nullability.hs:f257i:e23d:,  note: .expanded from macro 'absl_nullable'.
.)   257i | f#_dseaftiinsef iaebds
l      _| n        ^u
llable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from In file included from ../src/s2/s2builder.hs2/s2buffer_operation.cc::3649:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2buffer_operation.h::3025:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s1angle.h::6728:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2point.h579::253:
:In file included from  ../src/s2/util/coding/coder.h:warning: 36'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:  21579:
 | In file included from  /usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:I21N:
T/usr/local/clang/include/absl/log/internal/check_op.hE:R504N:A1L:_ Xwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ns/usr/local/clang/include/absl/log/internal/check_op.he:r498t:_35o:r _note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
sig  n498, |   i n s e r ti_notr _va1s,s iignnt_ hvi2n,t _ciomnpslt,  c&h&a,r *c oanbsstl _&n,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l e  x580p | r t e x t )   {                      f a l s e ,  \t
r      u| e                                  ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22_:i tnote: eexpanded from macro 'absl_nonnull'r
at  o241r | (#hdienfti)n eA BaSbLs_lI_NnToEnRnNuAlLl_ C_ONMoMnAn)u;l
l      
|                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
                     ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:In file included from 26s2/s2buffer_operation.cc:
:In file included from 49../src/s2/s2builder.h:
:In file included from 36../src/s2/s2buffer_operation.h:
:In file included from 25../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67../src/s2/s2point.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h25::
583In file included from :../src/s2/util/coding/coder.h3::36 :
In file included from warning: ../src/s2/base/casts.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
36:
In file included from ../src/s2/base/logging.h:21:
  In file included from 583/usr/local/clang/include/absl/log/check.h | : 37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
I/usr/local/clang/include/absl/log/internal/check_op.hN:T506E:R1N:A Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]X
(in  506 | sAeBrStL__oLrO_Ga_sIsNiTgEnR,N AiLn_sCeHrEtC_Ko_rO_Pa_sIsMiPgLn(_Chhienctk__iGmEp,l ,> =&)&
,       | c^o
nst/usr/local/clang/include/absl/log/internal/check_op.h :&488,:
32      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  584 |    488  |      i n l i n e   c o n s t e xtprru ec,o ntsrtu ec,h acro*n satb_silt_enrualtloarb(lhei nnta)m eA#B#SILm_pIlN(T E R N A L _ C O M M A ) ; 
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 \
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 511                               ^:
47: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'257
:23:   note: 511expanded from macro 'absl_nullable' | 
     257  |  # d e f i nAeB SaLb_sIlN_TnEuRlNlAaLb_lAeT T_RNIuBlUlTaEb_lCeA
P      T| U                      ^R
ED_BY(this)))In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
\In file included from 
../src/s2/base/casts.h      :| 36                                              ^~~~:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      | In file included from   ^s2/s2buffer_operation.cc
:49:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2buffer_operation.h509::2552:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2point.h:25:
  In file included from 509../src/s2/util/coding/coder.h | : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h :A21B:
SIn file included from L/usr/local/clang/include/absl/log/check.h_:I37N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.hR:N21A:
L/usr/local/clang/include/absl/log/internal/check_op.h_:A507T:T1R:I Bwarning: Utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
E_C  A507P | TAUBRSELD__LBOYG(_tIhNiTsE)R)N,A L _ C H E C K _ O P _ I M P L ( C h e c k _ G T\,
       >| )                                                   ^

      | ^
/usr/local/clang/include/absl/container/internal/common.h:32:/usr/local/clang/include/absl/log/internal/check_op.h9::488 :32note: :macro 'ABSL_INTERNAL_IF_false' defined here 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
   32 | #  d488e | f i nien lAiBnSeL _cIoNnTsEtReNxApLr_ IcFo_nfsatl sceh(airf*_ saabtsils_fniueldl,a b.l.e. )n a_m_eV#A#_IAmRpGlS(_ _ 
        |          ^ 
             \
      In file included from | s2/s2boolean_operation.cc                               ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2boolean_operation.h::25726::
23In file included from :../src/s2/s2builder.h :36note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/mutable_s2shape_index.h:30  :
257In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d67e:
f/usr/local/clang/include/absl/container/internal/btree_container.hi:n586e: 3a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
null  a586b | l e  A_BNSuLl_lIaNbTlEeR
N      A| L                      ^_
X(insert_or_aIn file included from ss2/s2buffer_operation.ccs:i49g:
nIn file included from ,../src/s2/s2buffer_operation.h :i25n:
sIn file included from e../src/s2/s1angle.hr:t28_:
oIn file included from r../src/s2/s2point.h_:a25s:
sIn file included from i../src/s2/util/coding/coder.hg:n36_:
hIn file included from i../src/s2/base/casts.hn:t36_:
iIn file included from m../src/s2/base/logging.hp:l21,:
 In file included from &/usr/local/clang/include/absl/log/check.h&:,37 :
&In file included from &/usr/local/clang/include/absl/log/internal/check_impl.h,: 21f:
a/usr/local/clang/include/absl/log/internal/check_op.hl:s507e:,1
:       | warning:   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.h::511489::5247::  note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

    511489 |  |              c o n sAtB STL1_&I NvT1E,R NcAoLn_sAtT TTR2I&B UvT2E,_ CcAoPnTsUtR EcDh_aBrY*( tahbissl)_)n)o n n u l l   e x p r t e x t )   {           \ 
\      
|                                                     ^| 
                                                   ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/common.h241::3222::9 : note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_false' defined here

  241    | 32# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_uflall
s      e| (                     ^i
f_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: In file included from warning: s2/s2boolean_operation.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from   ../src/s2/s2boolean_operation.h519: | 26 :
 In file included from  ../src/s2/s2builder.h :c36o:
nIn file included from s../src/s2/mutable_s2shape_index.ht: 30c:
hIn file included from a/usr/local/clang/include/absl/container/btree_map.hr:*67 :
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l588_:n3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l ex  p588rtext) | ; 
       A| B                ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
X(  i241n | s#edretf_ionre_ aasbssilg_nn,o ninnuslelr t__Noorn_nauslsli
g      n| _                     ^h
int_impl, &&, In file included from &s2/s2buffer_operation.cc&:,49 :
fIn file included from a../src/s2/s2buffer_operation.hl:s25e:
,In file included from 
../src/s2/s1angle.h      :| 28  ^:

In file included from ../src/s2/s2point.h:25/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509../src/s2/util/coding/coder.h::5236::
 In file included from ../src/s2/base/casts.hnote: :expanded from macro 'ABSL_INTERNAL_X'36
:
In file included from ../src/s2/base/logging.h:21  :
509In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :A520B:S13L:_ Iwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERN  A520L | _cAoTnTsRtI BcUhTaEr_*C AaPbTsUlR_EnDu_lBlYa(btlhei sC)h)e,c k s t r c a s e c m p f a l s e I m p l ( 
        \| 
            ^      
|                                                    ^/usr/local/clang/include/absl/base/nullability.h
:257:23: /usr/local/clang/include/absl/container/internal/common.h:note: 32expanded from macro 'absl_nullable':
9:   257note:  | macro 'ABSL_INTERNAL_IF_false' defined here#
def   i32n | e# daebfsiln_en uAlBlSaLb_lIeN T_ENRuNlAlLa_bIlFe_
f      a| l                      ^s
e(if_In file included from ss2/s2buffer_operation.cca:t49i:
sIn file included from f../src/s2/s2buffer_operation.hi:e25d:
,In file included from  ../src/s2/s1angle.h.:.28.:
)In file included from  ../src/s2/s2point.h_:_25V:
AIn file included from _../src/s2/util/coding/coder.hA:R36G:
SIn file included from _../src/s2/base/casts.h_:
36      :
| In file included from         ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17In file included from :s2/s2boolean_operation.cc :67warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2boolean_operation.h:26:
  In file included from 521../src/s2/s2builder.h | : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.hc:o30n:
sIn file included from t/usr/local/clang/include/absl/container/btree_map.h :c67h:
a/usr/local/clang/include/absl/container/internal/btree_container.hr:*588 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ulla  b588l | e   sA1B,S Lc_oInNsTtE RcNhAaLr_*X (aibnssle_rntu_lolra_balses isg2n,,
       i| n                ^s
er/usr/local/clang/include/absl/base/nullability.ht:_257o:r23_:a snote: sexpanded from macro 'absl_nullable'i
gn  _257h | i#ndte_fiimnpel ,a b&s&l,_ n&u&l,l afballes e_,N
u      l| l  ^a
bl/usr/local/clang/include/absl/container/internal/btree_container.he:
511      :| 52                      ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2/s2buffer_operation.cc511: | 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 25 :
 In file included from  ../src/s2/s1angle.h : 28A:
BIn file included from S../src/s2/s2point.hL:_25I:
NIn file included from T../src/s2/util/coding/coder.hE:R36N:
AIn file included from L../src/s2/base/casts.h:_36A:
TIn file included from T../src/s2/base/logging.hR:I21B:
UIn file included from T/usr/local/clang/include/absl/log/check.hE:_37C:
AIn file included from P/usr/local/clang/include/absl/log/internal/check_impl.hT:U21R:
E/usr/local/clang/include/absl/log/internal/check_op.hD:_521B:Y47(:t hwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
)))   521  |          c o n s t   c h a r *   a b s l _ n\u
l      l| a                                                   ^b
le/usr/local/clang/include/absl/container/internal/common.h :s311:,9 :c onote: nmacro 'ABSL_INTERNAL_IF_true' defined heres
t c   h31a | r#*d eafbisnle_ nAuBlSlLa_bIlNeT EsR2N,A
L      _| I                                              ^F
_t/usr/local/clang/include/absl/base/nullability.hr:u257e:(23i:f _note: sexpanded from macro 'absl_nullable'a
ti  s257f | i#edde,f i.n.e. )a bisfl__snautlilsafbileed 
_      N| u        ^l
lable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25In file included from :
s2/s2boolean_operation.ccIn file included from :../src/s2/s1angle.h67::
28In file included from :
../src/s2/s2boolean_operation.hIn file included from :../src/s2/s2point.h26::
25In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/util/coding/coder.h36::
36In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/base/casts.h30::
36In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/base/logging.h67::
21/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 588/usr/local/clang/include/absl/log/check.h::337::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]21
:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17:   588warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 A  B522S | L _ I N TcEoRnNsAtL _cXh(airn*s earbts_lo_rn_oansnuslilg ne,x pirntseexrtt)_;o
r      _| a                ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241_:h22i:n tnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #&d&e,f i&n&e,  afbaslls_en,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l _  N589o | n n u l l 
        |                       ^ 
         true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builder.cc -o s2/s2builder.o
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2boolean_operation.cce:f67i:
nIn file included from e../src/s2/s2boolean_operation.h :a26b:
sIn file included from l../src/s2/s2builder.h_:n36o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l41l:
 In file included from _../src/s2/s2cell_id.hN:o43n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2buffer_operation.cc:49:
In file included from   ../src/s2/s2buffer_operation.h119: | 25 :
 In file included from S../src/s2/s1angle.ht:a28t:
uIn file included from s../src/s2/s2point.hR:e27p:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
CIn file included from l/usr/local/clang/include/absl/strings/cord.ho:n94e:
(In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31             ^:

/usr/local/clang/include/absl/synchronization/mutex.h:851:45/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
851 |     241  |  # d ebfoionle  (aabbssll_:n:otnynpuel_li d_eNnotnintuyl<lT
>      :| :t                     ^y
pe::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2boolean_operation.cc
:67:
  In file included from 241../src/s2/s2boolean_operation.h | :#26d:
eIn file included from f../src/s2/s2builder.hi:n36e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s41l:
_In file included from n../src/s2/s2cell_id.ho:n43n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRIn file included from es2/s2buffer_operation.ccp:*49 :
aIn file included from b../src/s2/s2buffer_operation.hs:l25_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :C27l:
oIn file included from n../src/s2/s2coder.he:A23n:
dIn file included from U/usr/local/clang/include/absl/status/status.hn:r67e:
fIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
             ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'855
:34:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n855e |   a besxlp_lniocnintu lClo n_dNiotninounl(lc
o      n| s                     ^t
 bool* absl_nonnull cond);
      |                                  ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2boolean_operation.cc::24167::
22In file included from :../src/s2/s2boolean_operation.h :26note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2builder.h:36  :
241In file included from  | ../src/s2/mutable_s2shape_index.h#:d41e:
fIn file included from i../src/s2/s2cell_id.hn:e43 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
l/usr/local/clang/include/absl/status/internal/status_internal.h
:      128| :                     ^14
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;In file included from 
s2/s2buffer_operation.cc      :| 49             ^:

In file included from ../src/s2/s2buffer_operation.h:/usr/local/clang/include/absl/base/nullability.h25::
241In file included from :../src/s2/s1angle.h22::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:o886n:n31u:l lwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/mutable_s2shape_index.h::115341::
39In file included from :../src/s2/s2cell_id.h :43warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h :115327 | :
 In file included from  ../src/s2/s2coder.he:x23p:
lIn file included from i/usr/local/clang/include/absl/status/status.hc:i67t:
 R/usr/local/clang/include/absl/status/internal/status_internal.he:l149e:a13s:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
Mut  e149x | Lcoocnks(tM uctheaxr**  aabbssll__nnoonnnnuullll  mMua)k
e      C| h                                      ^e
ckF/usr/local/clang/include/absl/base/nullability.ha:i241l:S22t:r inote: nexpanded from macro 'absl_nonnull'g
(
        241|  |             ^#
defi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.hIn file included from :s2/s2buffer_operation.cc36::
49In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2buffer_operation.h41::
25In file included from :
../src/s2/s2cell_id.hIn file included from :../src/s2/s1angle.h43::
28In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2point.h28::
27In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2coder.h27::
23In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/status.h23::
67In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h67::
29/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 150/usr/local/clang/include/absl/strings/cord.h::2594::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
/usr/local/clang/include/absl/synchronization/mutex.h:1158  :15053 | :    warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]c
onst  1158a | b s l : : S tMauttuesx*&  ambus lA_BnSoLn_nIuNlTlE RsNtAaLt_uAsT,T RcIoBnUsTtE _cChAaPrT*U RaEbDs_lB_Yn(otnhniusl)l, 
p      r| e                                                    ^~~~f
ix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_non/usr/local/clang/include/absl/synchronization/mutex.hn:u1166l:l39 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null 
1166       | |                       ^ 
explicit ReIn file included from ls2/s2boolean_operation.cce:a67s:
aIn file included from b../src/s2/s2boolean_operation.hl:e26M:
uIn file included from t../src/s2/s2builder.he:x36L:
oIn file included from c../src/s2/mutable_s2shape_index.hk:(41M:
uIn file included from t../src/s2/s2cell_id.he:x43*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23m:
uIn file included from ,/usr/local/clang/include/absl/status/status.h :c67o:
n/usr/local/clang/include/absl/status/internal/status_internal.hs:t150 :C58o:n dwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ion&   150c | o n d ) 
c      o| n                                      ^s
t a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::S tnote: aexpanded from macro 'absl_nonnull't
us  *241  | a#bdself_innoen naublsll _sntoantnuusl,l  c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2buffer_operation.ccl: 49_:
NIn file included from o../src/s2/s2buffer_operation.hn:n25u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absIn file included from ls2/s2buffer_operation.cc_:n49o:
nIn file included from n../src/s2/s2buffer_operation.hu:l25l:
 In file included from P../src/s2/s1angle.hr:e28p:
aIn file included from r../src/s2/s2point.he:T27o:
MIn file included from o../src/s2/s2coder.hd:i23f:
yIn file included from (/usr/local/clang/include/absl/status/status.h
:      67| :
                                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  1241241: | 12#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a b1241s | l _ n o nbnouolll  (_*Naobnsnlu_lnlo
n      n| u                     ^l
l func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2boolean_operation.cc :67note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2boolean_operation.h:26  :
241In file included from  | ../src/s2/s2builder.h#:d36e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e41 :
aIn file included from b../src/s2/s2cell_id.hs:l43_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
l/usr/local/clang/include/absl/status/status.h
:      732| :                     ^29
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2buffer_operation.cc  :73249 | :
 In file included from  ../src/s2/s2buffer_operation.hs:t25a:
tIn file included from i../src/s2/s1angle.hc: 28c:
oIn file included from n../src/s2/s2point.hs:t27 :
sIn file included from t../src/s2/s2coder.hd::23::
sIn file included from t/usr/local/clang/include/absl/status/status.hr:i67n:
gIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hE:m1241p:t34y:S twarning: rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i
ng( )1241; | 
        |                              ^ 
bo/usr/local/clang/include/absl/base/nullability.ho:l241 :(22*:a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ifnuen ca)b(sTl*_ naobnsnlu_lnlu l_lNaobninluiltly
_      u| n                     ^k
nown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #In file included from ds2/s2boolean_operation.cce:f67i:
nIn file included from e../src/s2/s2boolean_operation.h :a26b:
sIn file included from l../src/s2/s2builder.h_:n36u:
lIn file included from l../src/s2/mutable_s2shape_index.ha:b41i:
lIn file included from i../src/s2/s2cell_id.ht:y43_:
uIn file included from n../src/s2/s1angle.hk:n28o:
wIn file included from n../src/s2/s2point.h :_27N:
uIn file included from l../src/s2/s2coder.hl:_23u:
n/usr/local/clang/include/absl/status/status.hs:p733e:c29i:f iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d

      |                                  ^  
733 |   static const std::stringIn file included from *s2/s2buffer_operation.cc :a49b:
sIn file included from l../src/s2/s2buffer_operation.h_:n25o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from M../src/s2/s2point.ho:v27e:
dIn file included from F../src/s2/s2coder.hr:o23m:
SIn file included from t/usr/local/clang/include/absl/status/status.hr:i67n:
gIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                            ^:
94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22:/usr/local/clang/include/absl/synchronization/mutex.h :1242note: :expanded from macro 'absl_nonnull'44
:   warning: 241 | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]#
def i1242n | e   a b stly_pneonnanmuel la b_sNlo:n:ntuylple
_      i| d                     ^e
ntity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #deIn file included from fs2/s2boolean_operation.cci:n67e:
 In file included from a../src/s2/s2boolean_operation.hb:s26l:
_In file included from n../src/s2/s2builder.hu:l36l:
aIn file included from b../src/s2/mutable_s2shape_index.hi:l41i:
tIn file included from y../src/s2/s2cell_id.h_:u43n:
kIn file included from n../src/s2/s1angle.ho:w28n:
 In file included from _../src/s2/s2point.hN:u27l:
lIn file included from _../src/s2/s2coder.hu:n23s:
p/usr/local/clang/include/absl/status/status.he:c751i:f61i:e dwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                  ^
  751 |   static uintptr_t PointerToRep(status_intIn file included from es2/s2buffer_operation.ccr:n49a:
lIn file included from :../src/s2/s2buffer_operation.h::S25t:
aIn file included from t../src/s2/s1angle.hu:s28R:
eIn file included from p../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hr:)29;:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                                                            ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:22/usr/local/clang/include/absl/synchronization/mutex.h:: 1249:note: 8expanded from macro 'absl_nonnull':
 warning:   241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de f1249i | n e   a bTs*l _anbosnln_unloln n_uNloln noubljle
c      t| ,                     ^

      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2boolean_operation.cci:n67e:
 In file included from a../src/s2/s2boolean_operation.hb:s26l:
_In file included from n../src/s2/s2builder.ho:n36n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 41_:
NIn file included from o../src/s2/s2cell_id.hn:n43u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752In file included from  | s2/s2buffer_operation.cc : 49s:
tIn file included from a../src/s2/s2buffer_operation.ht:i25c:
 In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from  ../src/s2/s2point.hs:t27a:
tIn file included from u../src/s2/s2coder.h:s23_:
iIn file included from n/usr/local/clang/include/absl/status/status.ht:e67r:
nIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl::29::
SIn file included from t/usr/local/clang/include/absl/strings/cord.ha:t94u:
sIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.he:p31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1250s:l43_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  R1250e | p T o P obionotle r((a
b      s| l                                           ^:
:t/usr/local/clang/include/absl/base/nullability.hy:p241e:_22i:d enote: nexpanded from macro 'absl_nonnull't
it  y241< | T#>d:e:ftiynpee :a:b*s la_bnsoln_nnuolnln u_lNlo nmneutlhlo
d      )| (                     ^)
)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2boolean_operation.ccn:n67u:
lIn file included from l../src/s2/s2boolean_operation.h :_26N:
oIn file included from n../src/s2/s2builder.hn:u36l:
lIn file included from 
../src/s2/mutable_s2shape_index.h      :| 41                     ^:

In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* abslIn file included from _s2/s2buffer_operation.ccn:o49n:
nIn file included from u../src/s2/s2buffer_operation.hl:l25 :
SIn file included from t../src/s2/s1angle.ha:t28u:
sIn file included from :../src/s2/s2point.h::R27e:
pIn file included from T../src/s2/s2coder.ho:P23o:
iIn file included from n/usr/local/clang/include/absl/status/status.ht:e67r:
(In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                         ^:

/usr/local/clang/include/absl/strings/cord.h:525:35/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  525   | 241  |  # d eafbisnle: :acbosrld__nionntneurlnla l_:N:oCnonrudlRle
p      *|                       ^a
bsl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2boolean_operation.ccn:u67l:
lIn file included from a../src/s2/s2boolean_operation.hb:l26e:
 In file included from _../src/s2/s2builder.hN:u36l:
lIn file included from a../src/s2/mutable_s2shape_index.hb:l41e:

In file included from       ../src/s2/s2cell_id.h| :                      ^43
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2buffer_operation.cc::2349:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2buffer_operation.h::106325::
13In file included from :../src/s2/s1angle.h :28warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h :106323 | :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.hh:a29r:
*/usr/local/clang/include/absl/strings/cord.h :a588b:s17l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l588  | S t a t ucsoMnessts aCgoerAds*C Satbrs(l
_      n| o            ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241c:o22r:d _note: ;expanded from macro 'absl_nonnull'

      |                   ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:67:
In file included from ../src/s2/s2boolean_operation.h:26:
In file included from ../src/s2/s2builder.h:36:
In file included from In file included from ../src/s2/mutable_s2shape_index.hs2/s2buffer_operation.cc::4449:
:
In file included from In file included from ../src/s2/s2pointutil.h../src/s2/s2buffer_operation.h::2725:
:
In file included from ../src/s2/util/math/matrix3x3.h../src/s2/s1angle.h::27628::
5In file included from :../src/s2/s2point.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
../src/s2/base/logging.h:/usr/local/clang/include/absl/status/status.h37::72521::38 : note: warning: expanded from macro 'S2_CHECK_NE'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   37 | #  d725e | f i nset aSt2i_cC HsEtCaKt_uNsE_ iCnHtEeCrKn_aNlE:
:      S| t                    ^a
tu/usr/local/clang/include/absl/log/check.hs:R120e:p3*:  anote: bexpanded from macro 'CHECK_NE's
l_n  o120n | n u lAlB SPLr_eLpOaGr_eITNoTMEoRdNiAfLy_(C
H      E| C                                     ^K
_NE/usr/local/clang/include/absl/base/nullability.h_:I241M:P22L:( (note: vexpanded from macro 'absl_nonnull'a
l1  )241, |  ##dveafli1n,e  (avbasll2_)n,o n#nvualll2 )_
N      o| n  ^n
ul/usr/local/clang/include/absl/log/internal/check_impl.hl:
51      :| 3                     ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_In file included from Ns2/s2buffer_operation.ccE:,49 :
!In file included from =../src/s2/s2buffer_operation.h,: 25v:
aIn file included from l../src/s2/s1angle.h1:,28 :
vIn file included from a../src/s2/s2point.hl:127_:
tIn file included from e../src/s2/s2coder.hx:t23,:
 /usr/local/clang/include/absl/status/status.hv:a732l:229,:  vwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
2_t  e732x | t ) 
s      t| a  ^t
ic/usr/local/clang/include/absl/log/internal/check_op.h :c75o:n61s:t  note: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP't
d:   75: | s t rAiBnSgL*_ LaObGs_lI_NnToEnRnNuAlLl_ CEHmEpCtKy(S:t:raibnsgl(:):;i
m      p| l                            ^i
ci/usr/local/clang/include/absl/base/nullability.ht:_241c:a22s:t <note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu>l(l   _ N o n\n
u      l| l                                                            ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2buffer_operation.ccn:n49u:
lIn file included from l../src/s2/s2buffer_operation.h :_25N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:26:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:26:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |         In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 27 :
 In file included from t../src/s2/s2builder.hr:u36e:
,In file included from  ../src/s2/mutable_s2shape_index.hA:B30S:
LIn file included from _/usr/local/clang/include/absl/container/btree_map.hI:N66T:
EIn file included from R/usr/local/clang/include/absl/container/internal/btree.hN:A70L:
_In file included from S/usr/local/clang/include/absl/container/internal/layout.hI:N198G:
LIn file included from E/usr/local/clang/include/absl/strings/str_cat.h_:A116R:
GIn file included from (/usr/local/clang/include/absl/strings/internal/stringify_sink.h):)23;:

      /usr/local/clang/include/absl/strings/numbers.h| :                                                  ^66
:41:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :120warning: :9type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: macro 'ABSL_INTERNAL_X' defined here
   66 |    120  |  # d e f i n e   A B S L _ I N T E R N A L _ X ( F u n ci,n tC_atlylpeee*,  aKbQsula_ln,o nVnQuulall ,o uKtV)a;l
u      e| ,                                        ^ 
VVa/usr/local/clang/include/absl/base/nullability.hl:u241e:,22 :T anote: iexpanded from macro 'absl_nonnull'l
,   .241. | .#)d e\f
i      n| e        ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] boo/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 157S:i3m:p lwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
tof(  a157b | s l :A:BsStLr_iInNgT_EvRiNeAwL _sXt(ri,n sfelrota_to*r _aabsssli_gnno,n niunlsle rotu_to)r;_
a      s| s                                                            ^i
gn/usr/local/clang/include/absl/base/nullability.h_:i241m:p22l:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241& | ,# d&e&f,i nter uaeb,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l133l: 52_:N onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull  
133       | |                       ^ 
        ABSL_INTERNAL_ATTRIn file included from Is2/s2buffer_operation.ccB:U49T:
EIn file included from _../src/s2/s2buffer_operation.hC:A27P:
TIn file included from U../src/s2/s2builder.hR:E36D:
_In file included from B../src/s2/mutable_s2shape_index.hY:(30t:
hIn file included from i/usr/local/clang/include/absl/container/btree_map.hs:)66):
,In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 88 : 62 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                                    ^
   /usr/local/clang/include/absl/container/internal/common.h88: | 31[:[9n:o dnote: imacro 'ABSL_INTERNAL_IF_true' defined heres
car   d31] | ]# dbeofoiln eS iAmBpSlLe_AItNoTdE(RaNbAsLl_:I:Fs_ttrriuneg(_ivfi_eswa tsitsrf,i eddo,u b.l.e.*)  aibfs_ls_antoinsnfuileld 
o      u| t        ^)
;
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2boolean_operation.cc  :24182 | :
#In file included from d/usr/local/clang/include/absl/container/flat_hash_map.he:f45i:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 157a:b3s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nnull   157_ | N o nAnBuSlLl_
I      N| T                     ^E
RNAL_X(insert_or_assign, iIn file included from ns2/s2buffer_operation.ccs:e49r:
tIn file included from _../src/s2/s2buffer_operation.ho:r27_:
aIn file included from s../src/s2/s2builder.hs:i36g:
nIn file included from _../src/s2/mutable_s2shape_index.hi:m30p:
lIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :c66o:
nIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht:&70,:
 In file included from &/usr/local/clang/include/absl/container/internal/layout.h&:,198 :
tIn file included from r/usr/local/clang/include/absl/strings/str_cat.hu:e116,:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~23
:
/usr/local/clang/include/absl/strings/numbers.h:  98158: | 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        98  |  [ [ n o d i stcraured,] ]A BbSoLo_lI NSTiEmRpNlAeLA_tSoIbN(GaLbEs_lA:R:Gs(t)r)i;n
g      _| v                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
ew /usr/local/clang/include/absl/container/internal/raw_hash_map.hs:t133r:,47 :b onote: oexpanded from macro 'ABSL_INTERNAL_X'l
* a  b133s | l _ n o n n u l l   oAuBtS)L;_
I      N| T                                                           ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L241_:A22T:T Rnote: Iexpanded from macro 'absl_nonnull'B
UT  E241_ | C#AdPeTfUiRnEeD _aBbYs(lt_hniosn)n)u,l l   _ N o n n u l l 
        |                       ^ 
           \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:In file included from 3s2/s2buffer_operation.cc:: 49:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2buffer_operation.h
:27/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 135../src/s2/s2builder.h::1636::
 In file included from ../src/s2/mutable_s2shape_index.hnote: :expanded from macro 'ABSL_INTERNAL_X'30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66  :
135In file included from  | /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.ht:h116i:
sIn file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h):)23 :
A/usr/local/clang/include/absl/strings/numbers.hB:S112L:_44A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUT  E112_ | L I F E T I M E _ B O U N D   {                                    i n t _ t y p e *   a b s\l
_      n| o               ^n
nu/usr/local/clang/include/absl/container/internal/common.hl:l31 :o9u:t )note: ;macro 'ABSL_INTERNAL_IF_true' defined here

      |                                            ^   
31 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aIFb_stlr_uneo(ninfu_lsla t_iNsofnineudl,l 
.      .| .                     ^)
 if_satisfied
      |         ^
In file included from s2/s2buffer_operation.ccIn file included from :s2/s2boolean_operation.cc49::
82In file included from :
../src/s2/s2buffer_operation.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h27::
45In file included from :
../src/s2/s2builder.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h36::
157In file included from :../src/s2/mutable_s2shape_index.h3::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
  In file included from 157/usr/local/clang/include/absl/container/internal/layout.h | : 198 :
AIn file included from B/usr/local/clang/include/absl/strings/str_cat.hS:L116_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.hT:E23R:
N/usr/local/clang/include/absl/strings/numbers.hA:L116_:X55(:i nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rt_o  r116_ | a s s i g n ,   i n s e r t _ o r _ a s s i g n _ i m p l ,   c o n s t & ,   & &a,b stlr:u:ei,n
t      1| 2  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~8
*   a158b | s l _ n o n n u l l   o u t ) ; 
        | t                                                      ^r
ue/usr/local/clang/include/absl/base/nullability.h,: 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eSfIiNnGeL Ea_bAsRlG_(n)o)n;n
u      l| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
_No/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:n135u:l11l:
       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  135 |           this))) ABSIn file included from Ls2/s2buffer_operation.cc_:A49T:
TIn file included from R../src/s2/s2buffer_operation.hI:B27U:
TIn file included from E../src/s2/s2builder.h_:L36I:
FIn file included from E../src/s2/mutable_s2shape_index.hT:I30M:
EIn file included from _/usr/local/clang/include/absl/container/btree_map.hB:O66U:
NIn file included from D/usr/local/clang/include/absl/container/internal/btree.h :{70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 118 : 56 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      \118
 |        |            ^~~~ 
                                     absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:      161| :                     ^52
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KVaIn file included from ls2/s2buffer_operation.ccu:e49,:
 In file included from V../src/s2/s2buffer_operation.hV:a27l:
uIn file included from e../src/s2/s2builder.h,: 36T:
aIn file included from i../src/s2/mutable_s2shape_index.hl:,30 :
.In file included from ./usr/local/clang/include/absl/container/btree_map.h.:)66 :
\In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70        ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3:In file included from  s2/s2buffer_operation.cc:warning: 49:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2buffer_operation.h:27  :
160In file included from  | ../src/s2/s2builder.h : 36A:
BIn file included from S../src/s2/mutable_s2shape_index.hL:_30I:
NIn file included from T/usr/local/clang/include/absl/container/btree_map.hE:R66N:
AIn file included from L/usr/local/clang/include/absl/container/internal/btree.h_:X70(:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.hs:e198r:
tIn file included from _/usr/local/clang/include/absl/strings/str_cat.ho:r116_:
aIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:i23g:
n/usr/local/clang/include/absl/strings/numbers.h,: 156i:n55s:e rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
or_a  s156s | ibgono_li mspalf,e _&s&t,r tcoo8n_sbta&s,e (faablssle:,:
s      t| r  ^i
ng/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:v133i:e52w:  tnote: eexpanded from macro 'ABSL_INTERNAL_X'x
t,   i133n | t 8 _ t *   a b s l _AnBoSnLn_uIlNlT EvRaNlAuLe_,A
T      T| R                                                      ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) ,a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #definIn file included from es2/s2buffer_operation.cc :A49B:
SIn file included from L../src/s2/s2buffer_operation.h_:I27N:
TIn file included from E../src/s2/s2builder.hR:N36A:
LIn file included from _../src/s2/mutable_s2shape_index.hI:F30_:
fIn file included from a/usr/local/clang/include/absl/container/btree_map.hl:s66e:
(In file included from i/usr/local/clang/include/absl/container/internal/btree.hf:_70s:
aIn file included from t/usr/local/clang/include/absl/container/internal/layout.hi:s198f:
iIn file included from e/usr/local/clang/include/absl/strings/str_cat.hd:,116 :
.In file included from ../usr/local/clang/include/absl/strings/internal/stringify_sink.h): 23_:
_/usr/local/clang/include/absl/strings/numbers.hV:A158_:A57R:G Swarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_

      |         ^
  158 | bool sIn file included from as2/s2boolean_operation.ccf:e82_:
sIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.hr:t45o:
1/usr/local/clang/include/absl/container/internal/raw_hash_map.h6:_160b:a3s:e (warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl::  s160t | r i nAgB_SvLi_eIwN TtEeRxNtA,L _iXn(ti1n6s_etr*t _aobrs_la_snsoingnnu,l li nvsaelrute_,o
r      _| a                                                        ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241_:i22m:p lnote: ,expanded from macro 'absl_nonnull' 
&&  ,241  | c#odnesfti&n,e  faablssle_,n
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/raw_hash_map.h :_135N:o16n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l

      |                      ^  
135 |           this))) ABSL_ATTRIIn file included from Bs2/s2buffer_operation.ccU:T49E:
_In file included from L../src/s2/s2buffer_operation.hI:F27E:
TIn file included from I../src/s2/s2builder.hM:E36_:
BIn file included from O../src/s2/mutable_s2shape_index.hU:N30D:
 In file included from {/usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 160 : 57 :  \warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
               ^
/usr/local/clang/include/absl/container/internal/common.h  :16032 | :b9o:o lnote:  macro 'ABSL_INTERNAL_IF_false' defined heres
afe   _32s | t#rdteof3i2n_eb aAsBeS(La_bIsNlT:E:RsNtArLi_nIgF__vfiaelws et(eixft_,s aitnits3f2i_etd*,  a.b.s.l)_ n_o_nVnAu_lAlR GvSa_l_u
e      ,| 
        ^      
|                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2boolean_operation.ccn:n82u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h
:      45| :
                     ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |          In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 27 :
tIn file included from r../src/s2/s2builder.hu:e36,:
 In file included from A../src/s2/mutable_s2shape_index.hB:S30L:
_In file included from I/usr/local/clang/include/absl/container/btree_map.hN:T66E:
RIn file included from N/usr/local/clang/include/absl/container/internal/btree.hA:L70_:
SIn file included from I/usr/local/clang/include/absl/container/internal/layout.hN:G198L:
EIn file included from _/usr/local/clang/include/absl/strings/str_cat.hA:R116G:
(In file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h):;23
:
      | /usr/local/clang/include/absl/strings/numbers.h                                                  ^:
162:57/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 120:warning: 9type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: macro 'ABSL_INTERNAL_X' defined here
  162 | b  o120o | l# dseaffien_es tArBtSoL6_4I_NbTaEsReN(AaLb_sXl(:F:usntcr,i nCga_lvlieeew,  tKeQxuta,l ,i nVtQ6u4a_lt,*  KaVbasllu_en,o nVnVualllu ev,a lTuaei,l
,       | .                                                        ^.
.)/usr/local/clang/include/absl/base/nullability.h :\241
:      22| :        ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         abs/usr/local/clang/include/absl/container/internal/raw_hash_map.hl::162::i3n:t 1warning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]8
* ab  s162l | _ n oAnBnSuLl_lI NvTaElRuNeA,L _iXn(ti nbsaesret)_;o
r      _| a                                      ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241,: 22i:n snote: eexpanded from macro 'absl_nonnull'r
t_  o241r | _#adsesfiignne_ iambpsll,_ n&o&n,n ucloln s_tN&o,n nfuallls
e      ,| 
                     ^      
|   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |         In file included from  s2/s2buffer_operation.cc :A49B:
SIn file included from L../src/s2/s2buffer_operation.h_:I27N:
TIn file included from E../src/s2/s2builder.hR:N36A:
LIn file included from _../src/s2/mutable_s2shape_index.hA:T30T:
RIn file included from I/usr/local/clang/include/absl/container/btree_map.hB:U66T:
EIn file included from _/usr/local/clang/include/absl/container/internal/btree.hC:A70P:
TIn file included from U/usr/local/clang/include/absl/container/internal/layout.hR:E198D:
_In file included from B/usr/local/clang/include/absl/strings/str_cat.hY:(116t:
hIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:)23):
,/usr/local/clang/include/absl/strings/numbers.h : 166 : 57 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       166  |  b o o l   s a f e _ s\t
r      t| o                                                   ^u
8_/usr/local/clang/include/absl/container/internal/common.hb:a32s:e9(:a bnote: smacro 'ABSL_INTERNAL_IF_false' defined herel
::s   t32r | i#ndge_fviineew  AtBeSxLt_,I NuTiEnRtN8A_Lt_*I Fa_bfsall_sneo(ninfu_lsla tviaslfuiee,d
,       | .                                                        ^.
.)/usr/local/clang/include/absl/base/nullability.h :_241_:V22A:_ Anote: Rexpanded from macro 'absl_nonnull'G
S_  _241
 |       #| d        ^e
fine abslIn file included from _s2/s2boolean_operation.ccn:o82n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l45 :
_/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:o162n:n3u:l lwarning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                     ^
  162 |   ABSL_INTERNAL_X(insIn file included from es2/s2buffer_operation.ccr:t49_:
oIn file included from r../src/s2/s2buffer_operation.h_:a27s:
sIn file included from i../src/s2/s2builder.hg:n36,:
 In file included from i../src/s2/mutable_s2shape_index.hn:s30e:
rIn file included from t/usr/local/clang/include/absl/container/btree_map.h_:o66r:
_In file included from a/usr/local/clang/include/absl/container/internal/btree.hs:s70i:
gIn file included from n/usr/local/clang/include/absl/container/internal/layout.h_:i198m:
pIn file included from l/usr/local/clang/include/absl/strings/str_cat.h,: 116&:
&In file included from ,/usr/local/clang/include/absl/strings/internal/stringify_sink.h :c23o:
n/usr/local/clang/include/absl/strings/numbers.hs:t168&:,59 :f awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
e,
      |     ^168
 | b/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:o135l: 16s:a fnote: eexpanded from macro 'ABSL_INTERNAL_X'_
str  t135o | u 1 6 _ b a s e ( a btshli:s:)s)t)r iAnBgS_Lv_iAeTwT RtIeBxUtT,E _uLiInFtE1T6I_MtE*_ BaObUsNlD_ n{o n n u l l   v a l u e , 
        |                                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    \241
 |       #| d               ^e
fi/usr/local/clang/include/absl/container/internal/common.hn:e31 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_true' defined heren
onn   u31l | l# d_eNfoinnneu lAlB
S      L| _                     ^I
NTERNAL_IF_true(if_satiIn file included from ss2/s2buffer_operation.ccf:i49e:
dIn file included from ,../src/s2/s2buffer_operation.h :.27.:
.In file included from )../src/s2/s2builder.h :i36f:
_In file included from s../src/s2/mutable_s2shape_index.ha:t30i:
sIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:e66d:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :        ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2boolean_operation.cc
:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  :17045 | :
b/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:o162l: 3s:a fwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
strto  u1623 | 2 _ bAaBsSeL(_aIbNsTlE:R:NsAtLr_iXn(gi_nvsieerwt _toerx_ta,s suiignnt,3 2i_nts*e ratb_solr__naosnsniuglnl_ ivmapllu,e ,&
&      ,|                                                            ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241&:,22 :f anote: lexpanded from macro 'absl_nonnull's
e,  
241       | | #  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
ef  i163n | e   a b s l _ n o n n u l l   _ N o ntnruulel,
       A| B                     ^S
L_INTERNAL_SINGLE_ARIn file included from Gs2/s2buffer_operation.cc(:)49):
;In file included from 
../src/s2/s2buffer_operation.h      :| 27                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2builder.h:36/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 135../src/s2/mutable_s2shape_index.h::1130::
 In file included from /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'ABSL_INTERNAL_X'66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70  :
135In file included from  | /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ht:h23i:
s/usr/local/clang/include/absl/strings/numbers.h):)172): 59A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ATTR  I172B | UbToEo_lL IsFaEfTeI_MsEt_rBtOoUuN6D4 _{b a s e ( a b s l : : s t r i n g _ v i e w   t e x t ,   u i\n
t      6| 4          ^~~~_
t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h165::7052:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.h:warning: 198:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h165: | 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 175 : 41 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     175  |       f a l s e ,   A B S L _ I N T E R N A L _ S IaNbGsLlE:_:AuRiGn(t)1)2;8
*       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n120o:n9n:u lnote: lmacro 'ABSL_INTERNAL_X' defined here 
val  u120e | ,# dienfti nbea sAeB)S;L
_      I| N                                        ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22X:( Fnote: uexpanded from macro 'absl_nonnull'n
c,   241C | a#ldleefei,n eK Qaubasll,_ nVoQnunaull,l  K_VNaolnuneu,l lV
V      a| l                     ^u
e, Tail, ...) \
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d/usr/local/clang/include/absl/container/internal/raw_hash_map.h,: 164c:h3a:r *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl_  n164o | n n uAlBlS Lb_uIfNfTeErR)N;A
L      _| X      ^(
in/usr/local/clang/include/absl/base/nullability.hs:e241r:t22_:o rnote: _expanded from macro 'absl_nonnull'a
ss  i241g | n#,d eifnisneer ta_bosrl__ansosningunl_li m_pNlo,n n&u&l,l 
c      o| n                     ^s
t&, truIn file included from es2/s2buffer_operation.cc,:
49      :
| In file included from   ^../src/s2/s2buffer_operation.h
:27:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/s2builder.h133::3652:
:In file included from  ../src/s2/mutable_s2shape_index.h:note: 30expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
  In file included from 133/usr/local/clang/include/absl/container/internal/btree.h | : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h :A116B:
SIn file included from L/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:I23N:
T/usr/local/clang/include/absl/strings/numbers.hE:R182N:A60: warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ATT  R182I | BcUhTaEr_*C AaPbTsUlR_EnDo_nBnYu(ltlh iRso)u)n,d T r i p D o u b l e T o B u f f e r ( d o u b l e  \d
,       | c                                                   ^h
ar/usr/local/clang/include/absl/container/internal/common.h*: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nn   u31l | l# dbeuffifneer )A;B
S      L| _                                                           ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Inote: Fexpanded from macro 'absl_nonnull'_
tr  u241e | (#idfe_fsiantei safbiseld_,n o.n.n.u)l li f__Nsoantniuslfli
e      d| 
                     ^      
|         ^
In file included from In file included from s2/s2boolean_operation.ccs2/s2buffer_operation.cc::8249:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2buffer_operation.h::4527:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/s2builder.h::16436::
3In file included from :../src/s2/mutable_s2shape_index.h :30warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:  70164:
 | In file included from  /usr/local/clang/include/absl/container/internal/layout.h :A198B:
SIn file included from L/usr/local/clang/include/absl/strings/str_cat.h_:I116N:
TIn file included from E/usr/local/clang/include/absl/strings/internal/stringify_sink.hR:N23A:
L/usr/local/clang/include/absl/strings/numbers.h_:X183(:i7n:s ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_or_  a183s | scihganr,*  ianbsselr_tn_oonrn_ualsls iRgonu_nidmTprli,p F&l&o,a tcToonBsutf&f,e rt(rfuleo,a
t       | f  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 c  h165a | r *   a b s l _ n o n n u l l   b u fffaelrs)e;,
       A| B      ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
SI  N241G | L#Ed_eAfRiGn(e) )a;b
s      l| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
onn/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l133l: 47_:N onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull  
133       | |                       ^ 
      In file included from  s2/s2buffer_operation.cc :A49B:
SIn file included from L../src/s2/s2buffer_operation.h_:I27N:
TIn file included from E../src/s2/s2builder.hR:N36A:
LIn file included from _../src/s2/mutable_s2shape_index.hA:T30T:
RIn file included from I/usr/local/clang/include/absl/container/btree_map.hB:U66T:
EIn file included from _/usr/local/clang/include/absl/container/internal/btree.hC:A70P:
TIn file included from U/usr/local/clang/include/absl/container/internal/layout.hR:E198D:
_In file included from B/usr/local/clang/include/absl/strings/str_cat.hY:(116t:
hIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:)23):
,/usr/local/clang/include/absl/strings/numbers.h : 183 : 58 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      183  |  c h a r *   a b s l _ n\o
n      n| u                                              ^~~~l
l Round/usr/local/clang/include/absl/container/internal/raw_hash_map.hT:r164i:p3F:l owarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
T/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:B135u:f16f:e rnote: (expanded from macro 'ABSL_INTERNAL_X'f
loa  t135  | f ,   c h a r *   a btshli_sn)o)n)n uAlBlS Lb_uAfTfTeRrI)B;U
T      E| _                                                         ^L
IF/usr/local/clang/include/absl/base/nullability.hE:T241I:M22E:_ Bnote: Oexpanded from macro 'absl_nonnull'U
ND   241{ |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
\      
|                            ^| 
               ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #defIn file included from is2/s2buffer_operation.ccn:e49 :
AIn file included from B../src/s2/s2buffer_operation.hS:L27_:
IIn file included from N../src/s2/s2builder.hT:E36R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_30I:
FIn file included from _/usr/local/clang/include/absl/container/btree_map.hf:a66l:
sIn file included from e/usr/local/clang/include/absl/container/internal/btree.h(:i70f:
_In file included from s/usr/local/clang/include/absl/container/internal/layout.ha:t198i:
sIn file included from f/usr/local/clang/include/absl/strings/str_cat.hi:e116d:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h.:.23.:
)/usr/local/clang/include/absl/strings/numbers.h :_191_:V42A:_ Awarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G
S__
        191|  |         ^s
ize_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: In file included from warning: s2/s2buffer_operation.ccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
49:
In file included from ../src/s2/s2buffer_operation.h:  27167:
 | In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70t:
rIn file included from u/usr/local/clang/include/absl/container/internal/layout.he:,198 :
AIn file included from B/usr/local/clang/include/absl/strings/str_cat.hS:L116_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.hT:E23R:
N/usr/local/clang/include/absl/strings/numbers.hA:L198_:S7I:N Gwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_AR  G()198) | ;c
h      a| r                                                  ^*
 a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:s120l:_9n:o nnote: nmacro 'ABSL_INTERNAL_X' defined hereu
ll   F120a | s#tdIenftiTnoeB uAfBfSeLr_(IiNnTtE3R2N_AtL _iX,( Fcuhnacr,*  Caablslle_en,o nKnQuulall ,b uVfQfuearl),
       K| V      ^a
lu/usr/local/clang/include/absl/base/nullability.he:,241 :V22V:a lnote: uexpanded from macro 'absl_nonnull'e
,   T241a | i#ld,e f.i.n.e)  a\b
s      l| _        ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* ab/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l166_:n3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l bu  f166f | e r )A
B      S| L                                                    ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Xexpanded from macro 'absl_nonnull'(
in  s241e | r#td_eofri_naes saibgsnl,_ nionnsneurltl_ o_rN_oansnsuilgln
_      i| m                     ^p
l, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_In file included from As2/s2buffer_operation.ccT:T49R:
IIn file included from B../src/s2/s2buffer_operation.hU:T27E:
_In file included from C../src/s2/s2builder.hA:P36T:
UIn file included from R../src/s2/mutable_s2shape_index.hE:D30_:
BIn file included from Y/usr/local/clang/include/absl/container/btree_map.h(:t66h:
iIn file included from s/usr/local/clang/include/absl/container/internal/btree.h):)70,:
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 199 : 5 :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat] 
 \
        | 199                                                   ^ | 
  /usr/local/clang/include/absl/container/internal/common.h : 31A:B9S:L _note: Imacro 'ABSL_INTERNAL_IF_true' defined hereN
TER   N31A | L#_dNeEfEiDn_eM IANB_SSLI_ZIEN(TbEuRfNfAeLr_,I Fk_FtarsuteT(oiBfu_fsfaetriSsifziee)d;,
       .| .    ^.
) i/usr/local/clang/include/absl/base/macros.hf:_251s:a18t:i snote: fexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'i
ed
        251|  |         ^ 
 __attribute__((diIn file included from as2/s2boolean_operation.ccg:n82o:
sIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.h_:i45f:
(/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:_166b:u3i:l twarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
_obje  c166t | _ s iAzBeS(LO_bIjN,T E0R)N A<L _NX,( i\n
s      e| r                 ^t
_or_assign, insert_oIn file included from rs2/s2buffer_operation.cc_:a49s:
sIn file included from i../src/s2/s2buffer_operation.hg:n27_:
iIn file included from m../src/s2/s2builder.hp:l36,:
 In file included from &../src/s2/mutable_s2shape_index.h&:,30 :
cIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:s66t:
&In file included from ,/usr/local/clang/include/absl/container/internal/btree.h :t70r:
uIn file included from e/usr/local/clang/include/absl/container/internal/layout.h,:
198      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/strings/str_cat.h
:116:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h167: | 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 200 : 7 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     200  |  c h atrr*u ea,b sAlB_SnLo_nInNuTlElR NFAaLs_tSIInNtGTLoEB_uAfRfGe(r)()u;i
n      t| 3                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2
_t /usr/local/clang/include/absl/container/internal/raw_hash_map.hn:,133 :c47h:a rnote: *expanded from macro 'ABSL_INTERNAL_X' 
absl  _133n | o n n u l l   o u t _AsBtSrL)_
I      N| T      ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L241_:A22T:T Rnote: Iexpanded from macro 'absl_nonnull'B
UT  E241_ | C#AdPeTfUiRnEeD _aBbYs(lt_hniosn)n)u,l l   _ N o n n u l l 
        |                       ^ 
           In file included from \s2/s2buffer_operation.cc
:      49| :
                                              ^~~~In file included from 
../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::30166:
:In file included from 3/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/internal/btree.h
:70/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 135/usr/local/clang/include/absl/container/internal/layout.h::16198::
 In file included from /usr/local/clang/include/absl/strings/str_cat.hnote: :expanded from macro 'ABSL_INTERNAL_X'116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
135 | /usr/local/clang/include/absl/strings/numbers.h : 200 : 54 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 th  i200s | )c)h)a rA*B SaLb_sAlT_TnRoInBnUuTlEl_ LFIaFsEtTIInMtET_oBBOuUfNfDe r{( u i n t 3 2 _ t   n ,   c h a r *   a b s l _ n o n n u l l\ 
o      u| t               ^_
st/usr/local/clang/include/absl/container/internal/common.hr:)31
:      9| :                                                     ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/base/nullability.h
:241:22   :31  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_ltlr u_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3In file included from :s2/s2buffer_operation.cc :49warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:  36166:
 | In file included from  ../src/s2/mutable_s2shape_index.h :A30B:
SIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:I66N:
TIn file included from E/usr/local/clang/include/absl/container/internal/btree.hR:N70A:
LIn file included from _/usr/local/clang/include/absl/container/internal/layout.hX:(198i:
nIn file included from s/usr/local/clang/include/absl/strings/str_cat.he:r116t:
_In file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:_23a:
s/usr/local/clang/include/absl/strings/numbers.hs:i201g:n5,:  iwarning: n'diagnose_if' is a clang extension [-Wgcc-compat]s
ert  _201o | r _ a s sAiBgSnL__iImNpTlE,R N&A&L,_ NcEoEnDs_tM&I,N _tSrIuZeE,(
o      u| t  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
st  r167, |   k F a s t T o B u f f e r S i z e )t;r
u      e| ,    ^ 
AB/usr/local/clang/include/absl/base/macros.hS:L251_:I18N:T Enote: Rexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'N
AL_  S251I | N G L_E__aAtRtGr(i)b)u;t
e      _| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(
(di/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:g135n:o11s:e _note: iexpanded from macro 'ABSL_INTERNAL_X'f
(__  b135u | i l t i n _ o b j e ctth_issi)z)e)( OAbBjS,L _0A)T T<R INB,U T\E
_      L| I                 ^F
ETIME_BOUND { In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 27 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
\In file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198          ^~~~:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a170b:s45l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
nul  l170  | _ N o n n u l l 
        |                       ^ 
      ABSL_In file included from Is2/s2buffer_operation.ccN:T49E:
RIn file included from N../src/s2/s2buffer_operation.hA:L27_:
SIn file included from I../src/s2/s2builder.hN:G36L:
EIn file included from _../src/s2/mutable_s2shape_index.hA:R30G:
(In file included from )/usr/local/clang/include/absl/container/btree_map.h):;66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                                            ^:
70:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/internal/layout.h::120198::
9In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
  /usr/local/clang/include/absl/strings/numbers.h120: | 202#:d53e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 AB  S202L | _cIhNaTrE*R NaAbLs_lX_(nFounnncu,l lC aFlalseteI,n tKTQouBaulf,f eVrQ(uianlt,6 4K_Vta liu,e ,c hVaVra*l uaeb,s lT_anioln,n u.l.l. )b u\f
f      e| r        ^)

      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:S169I:Z3E:( bwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f
fer,   169k | F a sAtBTSoLB_uIfNfTeErRSNiAzLe_)X;(
i      n| s    ^e
rt/usr/local/clang/include/absl/base/macros.h_:o251r:_18a:s snote: iexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'g
n,   i251n | s e r_t__aotrt_raisbsuitgen___i(m(pdli,a g&n&o,s e&_&i,f (f_a_lbsuei,l tfianl_soeb,j
e      c| t  ^_
si/usr/local/clang/include/absl/container/internal/raw_hash_map.hz:e133(:O52b:j ,note:  expanded from macro 'ABSL_INTERNAL_X'0
) <   133N | ,   \ 
        |                   ^ 
   ABSL_INTEIn file included from Rs2/s2buffer_operation.ccN:A49L:
_In file included from A../src/s2/s2buffer_operation.hT:T27R:
IIn file included from B../src/s2/s2builder.hU:T36E:
In file included from _../src/s2/mutable_s2shape_index.hC:A30P:
TIn file included from U/usr/local/clang/include/absl/container/btree_map.hR:E66D:
_In file included from B/usr/local/clang/include/absl/container/internal/btree.hY:(70t:
hIn file included from i/usr/local/clang/include/absl/container/internal/layout.hs:)198):
,In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 204 : 7 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      204  |  c h\a
r      *|                                                     ^a
bs/usr/local/clang/include/absl/container/internal/common.hl:_32n:o9n:n unote: lmacro 'ABSL_INTERNAL_IF_false' defined herel
 Fa   s32t | I#ndteTfoiBnuef fAeBrS(Lu_iInNtT6E4R_NtA Li_,I Fc_hfaarl*s ea(bisfl__snaotninsuflile db,u f.f.e.r)) 
_      _| V      ^A
_A/usr/local/clang/include/absl/base/nullability.hR:G241S:_22_:
       | note:         ^expanded from macro 'absl_nonnull'

  241 | #definIn file included from es2/s2boolean_operation.cc :a82b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h_:n45o:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:u169l:l3 :_ Nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null  
169       | |                       ^ 
ABSL_INTERNIn file included from As2/s2buffer_operation.ccL:_49X:
(In file included from i../src/s2/s2buffer_operation.hn:s27e:
rIn file included from t../src/s2/s2builder.h_:o36r:
_In file included from a../src/s2/mutable_s2shape_index.hs:s30i:
gIn file included from n/usr/local/clang/include/absl/container/btree_map.h,: 66i:
nIn file included from s/usr/local/clang/include/absl/container/internal/btree.he:r70t:
_In file included from o/usr/local/clang/include/absl/container/internal/layout.hr:_198a:
sIn file included from s/usr/local/clang/include/absl/strings/str_cat.hi:g116n:
_In file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hm:p23l:
,/usr/local/clang/include/absl/strings/numbers.h :&204&:,54 :& &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
fal  s204e | ,c hfaarl*s ea,b
s      l| _  ^n
on/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:u135l:l16 :F anote: sexpanded from macro 'ABSL_INTERNAL_X't
Int  T135o | B u f f e r ( u i n tt6h4i_st) )i),  AcBhSaLr_*A TaTbRsIlB_UnToEn_nLuIlFlE TbIuMfEf_eBrO)U
N      D|                                                       ^{
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o\n
n      u| l               ^l
 _/usr/local/clang/include/absl/container/internal/common.hN:o32n:n9u:l lnote: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                      ^
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied,In file included from  s2/s2buffer_operation.cc.:.49.:
)In file included from  ../src/s2/s2buffer_operation.h_:_27V:
AIn file included from _../src/s2/s2builder.hA:R36G:
SIn file included from _../src/s2/mutable_s2shape_index.h_:
30      :
| In file included from         ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     AIn file included from Bs2/s2boolean_operation.ccS:L82_:
IIn file included from N/usr/local/clang/include/absl/container/flat_hash_map.hT:E45R:
N/usr/local/clang/include/absl/container/internal/raw_hash_map.hA:L172_:N45E:E Dwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]M
IN_  S172I | Z E ( b u f f e r ,   k F a s t T o BAuBfSfLe_rISNiTzEeR)N;A
L      _| S    ^I
NG/usr/local/clang/include/absl/base/macros.hL:E251_:A18R:G (note: )expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE')
;
      |                                               ^251
 |  /usr/local/clang/include/absl/container/internal/raw_hash_map.h :_120_:a9t:t rnote: imacro 'ABSL_INTERNAL_X' defined hereb
ute  _120_ | (#(ddeifaignneo sAeB_SiLf_(I_N_TbEuRiNlAtLi_nX_(oFbujnecc,t _Csailzlee(eO,b jK,Q u0a)l ,<  VNQ,u a\l
,       | K                 ^V
alue, VValue,In file included from  s2/s2buffer_operation.ccT:a49i:
lIn file included from ,../src/s2/s2buffer_operation.h :.27.:
.In file included from )../src/s2/s2builder.h :\36
:
      In file included from | ../src/s2/mutable_s2shape_index.h        ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:o171n:n3u:l lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
Nonn  u171l | l 
       A| B                     ^S
L_INTERNALIn file included from _s2/s2buffer_operation.ccX:(49i:
nIn file included from s../src/s2/s2buffer_operation.he:r27t:
_In file included from o../src/s2/s2builder.hr:_36a:
sIn file included from s../src/s2/mutable_s2shape_index.hi:g30n:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hi:n66s:
eIn file included from r/usr/local/clang/include/absl/container/internal/btree.ht:_70o:
rIn file included from _/usr/local/clang/include/absl/container/internal/layout.ha:s198s:
iIn file included from g/usr/local/clang/include/absl/strings/str_cat.hn:_116i:
mIn file included from p/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:,23 :
&/usr/local/clang/include/absl/strings/numbers.h&:,206 :&52&:,  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
lse  ,206  | tcrhuaer,*
       a| b  ^s
l_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:o133n:n52u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'F
ast  I133n | t T o B u f f e r ( iAnBtS1L2_8I NiT,E RcNhAaLr_*A TaTbRsIlB_UnToEn_nCuAlPlT UbRuEfDf_eBrY)(
t      h| i                                                   ^s
))/usr/local/clang/include/absl/base/nullability.h,: 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u                                                   ^l
l /usr/local/clang/include/absl/container/internal/common.h_:N32o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_false' defined here

      |                      ^
   32 | #define ABSL_INTERNAL_IF_false(if_satisfiIn file included from es2/s2buffer_operation.ccd:,49 :
.In file included from .../src/s2/s2buffer_operation.h.:)27 :
_In file included from _../src/s2/s2builder.hV:A36_:
AIn file included from R../src/s2/mutable_s2shape_index.hG:S30_:
_In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66        ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.hs2/s2boolean_operation.cc::11682:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/container/flat_hash_map.h::2345:
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::207171::53::  warning: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    207171 |  |      A BASBLS_LI_NITNETRENRANLA_LX_(NiEnEsDe_rMtI_No_rS_IaZsEs(ibgunf,f eirn,s ekrFta_sotrT_oaBsusfifgenr_1i2m8pSli,z e&)&;,
       &| &    ^,
 f/usr/local/clang/include/absl/base/macros.ha:l251s:e18,:  tnote: rexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'u
e,
        251|  |   ^ 
 _/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:a135t:t16r:i bnote: uexpanded from macro 'ABSL_INTERNAL_X't
e__  (135( | d i a g n o s e _ i ft(h_i_sb)u)i)l tAiBnS_Lo_bAjTeTcRtI_BsUiTzEe_(LOIbFjE,T I0M)E _<B ONU,N D\ 
{       |                   ^ 
             In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 27 :
 In file included from  ../src/s2/s2builder.h : 36 :
\In file included from 
../src/s2/mutable_s2shape_index.h      :| 30               ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/container/internal/common.h66::
31In file included from :/usr/local/clang/include/absl/container/internal/btree.h9::70 :
In file included from note: /usr/local/clang/include/absl/container/internal/layout.hmacro 'ABSL_INTERNAL_IF_true' defined here:
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h   :31116 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.he:f23i:
n/usr/local/clang/include/absl/strings/numbers.he: 208A:B7S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TER  N208A | Lc_hIaFr_*t raubes(li_fn_osnantuilslf iFeads,t I.n.t.T)o Biuff_fseart(iusifnite1d2
8       | i        ^,
 char* absl_nIn file included from os2/s2boolean_operation.ccn:n82u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h :b45u:
f/usr/local/clang/include/absl/container/internal/raw_hash_map.hf:e171r:)3
:       | warning:       ^
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/base/nullability.h:241:22:   171note:  | expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sXl(_innosnenrutl_lo r__Naosnsniuglnl,
       i| n                     ^s
ert_or_assIn file included from is2/s2buffer_operation.ccg:n49_:
iIn file included from m../src/s2/s2buffer_operation.hp:l27,:
 In file included from &../src/s2/s2builder.h&:,36 :
&In file included from &../src/s2/mutable_s2shape_index.h,: 30f:
aIn file included from l/usr/local/clang/include/absl/container/btree_map.hs:e66,:
 In file included from t/usr/local/clang/include/absl/container/internal/btree.hr:u70e:
,In file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116172:
 | In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 208 : 53 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      208A | BcShLa_rI*N TaEbRsNlA_Ln_oSnInNuGlLlE _FAaRsGt(I)n)t;T
o      B| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~f
fer/usr/local/clang/include/absl/container/internal/raw_hash_map.h(:u135i:n11t:1 2note: 8expanded from macro 'ABSL_INTERNAL_X' 
i,   135c | h a r *   a b s l _ ntohninsu)l)l)  bAuBfSfLe_rA)T
T      R| I                                                    ^B
UT/usr/local/clang/include/absl/base/nullability.hE:_241L:I22F:E Tnote: Iexpanded from macro 'absl_nonnull'M
E_  B241O | U#NdDe f{i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 \
      |           ^~~~
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MI/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:_174S:I45Z:E (warning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ffe  r174, |   k F a s t T o B u f f e r 1 2 8 S iAzBeS)L;_
I      N| T    ^E
RN/usr/local/clang/include/absl/base/macros.hA:L251_:S18I:N Gnote: Lexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'E
_AR  G251( | ) ) ;_
_      a| t                                            ^t
ri/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:u120t:e9_:_ (note: (macro 'ABSL_INTERNAL_X' defined hered
iag  n120o | s#ed_eiffi(n_e_ bAuBiSlLt_iInN_ToEbRjNeAcLt__Xs(iFzuen(cO,b jC,a l0l)e e<,  NK,Q u\a
l      ,|                   ^V
Qual, KValue, VVaIn file included from ls2/s2buffer_operation.ccu:e49,:
 In file included from T../src/s2/s2buffer_operation.ha:i27l:
,In file included from  ../src/s2/s2builder.h.:.36.:
)In file included from  ../src/s2/mutable_s2shape_index.h\:
30      :
| In file included from         ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 173../src/s2/s2buffer_operation.h::327::
 In file included from ../src/s2/s2builder.hwarning: :36passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h173: | 66 :
 In file included from A/usr/local/clang/include/absl/container/internal/btree.hB:S70L:
_In file included from I/usr/local/clang/include/absl/container/internal/layout.hN:T198E:
RIn file included from N/usr/local/clang/include/absl/strings/str_cat.hA:L116_:
XIn file included from (/usr/local/clang/include/absl/strings/internal/stringify_sink.hi:n23s:
e/usr/local/clang/include/absl/strings/numbers.hr:t216_:o49r:_ awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ign  ,216  | i n s e r t _ o r _ a s s i g n _ i m p l ,   & & ,   & & ,   t r u e ,   f a l s e ,c
h      a| r  ^*
 a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:s133l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   b133u | f f e r ) 
        |                                                  ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | A#TdTeRfIiBnUeT Ea_bCsAlP_TnUoRnEnDu_lBlY (_tNhoinsn)u)l,l 
        |                       ^ 
                     \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IIn file included from Fs2/s2buffer_operation.cc_:t49r:
uIn file included from e../src/s2/s2buffer_operation.h(:i27f:
_In file included from s../src/s2/s2builder.ha:t36i:
sIn file included from f../src/s2/mutable_s2shape_index.hi:e30d:
,In file included from  /usr/local/clang/include/absl/container/btree_map.h.:.66.:
)In file included from  /usr/local/clang/include/absl/container/internal/btree.hi:f70_:
sIn file included from a/usr/local/clang/include/absl/container/internal/layout.ht:i198s:
fIn file included from i/usr/local/clang/include/absl/strings/str_cat.he:d116
:
      In file included from | /usr/local/clang/include/absl/strings/internal/stringify_sink.h        ^:
23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |  In file included from  s2/s2boolean_operation.cc : 82A:
BIn file included from S/usr/local/clang/include/absl/container/flat_hash_map.hL:_45I:
N/usr/local/clang/include/absl/container/internal/raw_hash_map.hT:E173R:N3A:L _warning: N'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
ED_MI  N173_ | S I ZAEB(S
L      _| I    ^N
TE/usr/local/clang/include/absl/base/macros.hR:N251A:L18_:X (note: iexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'n
ser  t251_ | o r __a_sastitgrni,b uitnes_e_r(t(_doira_gansossieg_ni_fi(m_p_lb,u i&l&t,i n&_&o,b jtercute_,s ifzael(sOeb,j
,       | 0  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
 <   174N | ,   \ 
        |                   ^ 
           ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #In file included from ds2/s2buffer_operation.cce:f49i:
nIn file included from e../src/s2/s2buffer_operation.h :A27B:
SIn file included from L../src/s2/s2builder.h_:I36N:
TIn file included from E../src/s2/mutable_s2shape_index.hR:N30A:
LIn file included from _/usr/local/clang/include/absl/container/btree_map.hI:F66_:
fIn file included from a/usr/local/clang/include/absl/container/internal/btree.hl:s70e:
(In file included from i/usr/local/clang/include/absl/container/internal/layout.hf:_198s:
aIn file included from t/usr/local/clang/include/absl/strings/str_cat.hi:s116f:
iIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:,23 :
./usr/local/clang/include/absl/strings/numbers.h.:.247): 47_:_ Vwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ARGS  _247_ | 
        |          ^ 
                                int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2boolean_operation.cc      :| 82                     ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERIn file included from Ns2/s2buffer_operation.ccA:L49_:
IIn file included from F../src/s2/s2buffer_operation.h_:t27r:
uIn file included from e../src/s2/s2builder.h(:i36f:
_In file included from s../src/s2/mutable_s2shape_index.ha:t30i:
sIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:e66d:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.h.:.70.:
)In file included from  /usr/local/clang/include/absl/container/internal/layout.hi:f198_:
sIn file included from a/usr/local/clang/include/absl/strings/str_cat.ht:i116s:
fIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.he:d23
:
      | /usr/local/clang/include/absl/strings/numbers.h        ^:
303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inIn file included from ls2/s2boolean_operation.cci:n82e:
 In file included from s/usr/local/clang/include/absl/container/flat_hash_map.hi:z45e:
_/usr/local/clang/include/absl/container/internal/raw_hash_map.ht: 175F:a3s:t Hwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]x
ToBuf  f175e | r Z eArBoSPLa_dI1N6T(EuRiNnAtL6_4X_(ti nvsaelr,t _cohra_ra*s saibgsnl,_ nionnsneurltl_ ooru_ta)s s{i
g      n| _                                                           ^i
mpl/usr/local/clang/include/absl/base/nullability.h,: 241&:&22,:  &note: &expanded from macro 'absl_nonnull',
 t  r241u | e#,d etfriunee, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_n  o176n | n u l l   _ N o n n u l l 
        |                       ^ 
 ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {           In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 27 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
\In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66               ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/container/internal/common.h70::
31In file included from :/usr/local/clang/include/absl/container/internal/layout.h9::198 :
In file included from note: /usr/local/clang/include/absl/strings/str_cat.hmacro 'ABSL_INTERNAL_IF_true' defined here:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h   :3123 | :
#/usr/local/clang/include/absl/strings/numbers.hd:e330f:i41n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_I  N330T | E R N A L _ I F _ t r u e ( i f _ s a t i s f i e d ,   . . .i)n ti_ft_yspaet*i safbiseld_
n      o| n        ^n
ull out) {
In file included from       s2/s2boolean_operation.cc| :                                        ^82
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:/usr/local/clang/include/absl/base/nullability.h45::
241/usr/local/clang/include/absl/container/internal/raw_hash_map.h::22175:: 3:note:  expanded from macro 'absl_nonnull'warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  241 | #d  e175f | i n eA BaSbLs_lI_NnToEnRnNuAlLl_ X_(Nionnsneurltl_
o      r| _                     ^a
ssign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
s2/s2buffer_operation.cc:49  :
176In file included from  | ../src/s2/s2buffer_operation.h : 27 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
AIn file included from B/usr/local/clang/include/absl/container/internal/btree.hS:L70_:
IIn file included from N/usr/local/clang/include/absl/container/internal/layout.hT:E198R:
NIn file included from A/usr/local/clang/include/absl/strings/str_cat.hL:_116S:
IIn file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.hG:L23E:
_/usr/local/clang/include/absl/strings/numbers.hA:R335G:(52):) ;warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h335: | 135 : 11 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      135  |                      t h i s ) ) )   A B S L _ A TaTbRsIlB:U:TiEn_tL1I2F8E*T IaMbEs_lB_OnUoNnDn u{l l   o u t )   { 
        |                                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d\e
f      i| n          ^~~~e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:
178      :| 3                     ^:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, consIn file included from ts2/s2buffer_operation.cc&:,49 :
cIn file included from o../src/s2/s2buffer_operation.hn:s27t:
&In file included from ,../src/s2/s2builder.h
:      36| :
  ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 133/usr/local/clang/include/absl/container/btree_map.h::5266::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'ABSL_INTERNAL_X'70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198  :
133In file included from  | /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h :A346B:S44L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA  L346_ | A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,          i n t _ t y p e *   a b s l _ n o n n u l l\ 
o      u| t                                                   ^)
 {/usr/local/clang/include/absl/container/internal/common.h
:      32| :                                           ^9
: note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_false' defined here:
241:22:    32 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_lfla l_sNeo(ninfu_lsla
t      i| s                     ^f
ied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: In file included from warning: s2/s2buffer_operation.ccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
49:
In file included from ../src/s2/s2buffer_operation.h:  27178:
 | In file included from  ../src/s2/s2builder.h :A36B:
SIn file included from L../src/s2/mutable_s2shape_index.h_:I30N:
TIn file included from E/usr/local/clang/include/absl/container/btree_map.hR:N66A:
LIn file included from _/usr/local/clang/include/absl/container/internal/btree.hX:(70i:
nIn file included from s/usr/local/clang/include/absl/container/internal/layout.he:r198t:
_In file included from o/usr/local/clang/include/absl/strings/str_cat.hr:_116a:
sIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hi:g23n:
,/usr/local/clang/include/absl/strings/numbers.h :i351n:s55e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_as  s351i | g n _ i m p l ,   c o n s t & ,   c o n s t & , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 135 : 16 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
 ab  s135l | : : i n t 1 2 8 *   atbhsils_)n)o)n nAuBlSlL _oAuTtT)R I{B
U      T| E                                                      ^_
LI/usr/local/clang/include/absl/base/nullability.hF:E241T:I22M:E _note: Bexpanded from macro 'absl_nonnull'O
UN  D241  | {# d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
       \| 
                     ^      
|                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGSIn file included from _s2/s2buffer_operation.cc_:
49      :
| In file included from         ^../src/s2/s2buffer_operation.h
:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSIn file included from Ls2/s2buffer_operation.cc_:I49N:
TIn file included from E../src/s2/s2buffer_operation.hR:N27A:
LIn file included from _../src/s2/s2builder.hX:(36i:
nIn file included from s../src/s2/mutable_s2shape_index.he:r30t:
_In file included from o/usr/local/clang/include/absl/container/btree_map.hr:_66a:
sIn file included from s/usr/local/clang/include/absl/container/internal/btree.hi:g70n:
,In file included from  /usr/local/clang/include/absl/container/internal/layout.hi:n198s:
er/usr/local/clang/include/absl/strings/str_cat.ht:_398o:r24_:a swarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
gn_i  m398p | l ,  AclopnhsatN&u,m (&c&o,n sfta lcshea,r
*       | a  ^b
sl/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n133u:l52l:a bnote: lexpanded from macro 'ABSL_INTERNAL_X'e
 c_  s133t | r     / /   N O L I NATB(SrLu_nItNiTmEeR/NeAxLp_lAiTcTiRtI)B
U      T| E                       ^_
CAP/usr/local/clang/include/absl/base/nullability.hT:U257R:E23D:_ Bnote: Yexpanded from macro 'absl_nullable'(
th  i257s | )#)d,e f i n e   a b s l _ n u l l a b l e   _ N u l l a b\l
e      
|                                                          ^| 
                      ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2/s2buffer_operation.cc::13549::
16In file included from :../src/s2/s2buffer_operation.h :27note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2builder.h:36:
In file included from   ../src/s2/mutable_s2shape_index.h135: | 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70t:
hIn file included from i/usr/local/clang/include/absl/container/internal/layout.hs:)198):
)/usr/local/clang/include/absl/strings/str_cat.h :A431B:S15L:_ Awarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
RIBU  T431E | _ L IcFoEnTsItM Ec_hBaOrU*N Da b{s l _ n u l l a b l e   d a t a ( )   c o n s t   {   r e t u\r
n       | p               ^i
ec/usr/local/clang/include/absl/container/internal/common.he:_31.:d9a:t anote: (macro 'ABSL_INTERNAL_IF_true' defined here)
; }   
31       | | #              ^d
efi/usr/local/clang/include/absl/base/nullability.hn:e257 :A23B:S Lnote: _expanded from macro 'absl_nullable'I
NT  E257R | N#AdLe_fIiFn_et raubes(li_fn_uslaltaibslfei e_dN,u l.l.a.b)l ei
f      _| s                      ^a
tisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTIn file included from Es2/s2buffer_operation.ccR:N49A:
LIn file included from _../src/s2/s2buffer_operation.hX:(27i:
nIn file included from s../src/s2/s2builder.he:r36t:
_In file included from o../src/s2/mutable_s2shape_index.hr:_30a:
sIn file included from s/usr/local/clang/include/absl/container/btree_map.hi:g66n:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.hi:n70s:
eIn file included from r/usr/local/clang/include/absl/container/internal/layout.ht:_198o:
r/usr/local/clang/include/absl/strings/str_cat.h_:a635s:s36i:g nwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
mpl,   635& | &i,n lcionnes tv&o,i dt rSuter,A
p      p| e  ^n
d(/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:t133d::52::s tnote: rexpanded from macro 'ABSL_INTERNAL_X'i
ng*   133a | b s l _ n o n n u l lA)B S{L}_
I      N| T                                   ^E
RNA/usr/local/clang/include/absl/base/nullability.hL:_241A:T22T:R Inote: Bexpanded from macro 'absl_nonnull'U
TE  _241C | A#PdTeUfRiEnDe_ BaYb(stlh_inso)n)n,u l l   _ N o n n u l l 
        |                       ^ 
          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #defiIn file included from ns2/s2buffer_operation.cce: 49A:
BIn file included from S../src/s2/s2buffer_operation.hL:_27I:
NIn file included from T../src/s2/s2builder.hE:R36N:
AIn file included from L../src/s2/mutable_s2shape_index.h_:I30F:
_In file included from t/usr/local/clang/include/absl/container/btree_map.hr:u66e:
(In file included from i/usr/local/clang/include/absl/container/internal/btree.hf:_70s:
aIn file included from t/usr/local/clang/include/absl/container/internal/layout.hi:s198f:
i/usr/local/clang/include/absl/strings/str_cat.he:d636,: 29.:. .warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
if_s  a636t | ivsofiide dS
t      r| A        ^p
pend(std::striIn file included from ns2/s2boolean_operation.ccg:*82 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l45_:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n200n:u3l:l  warning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
st, c  o200n | s t  AABlSpLh_aINNuTmE&R NaA)L;_
X      (| i                            ^n
ser/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  ,241  | i#ndseefritn_eo ra_bassls_ingonn_niumlpll ,_ N&o&n,n ucloln
s      t| &                     ^,
 true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |              In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from f../src/s2/s2buffer_operation.ha:l27s:
eIn file included from ,../src/s2/s2builder.h :.36f:
iIn file included from r../src/s2/mutable_s2shape_index.hs:t30,:
 In file included from c/usr/local/clang/include/absl/container/btree_map.ho:n66s:
tIn file included from _/usr/local/clang/include/absl/container/internal/btree.hi:t70e:
rIn file included from a/usr/local/clang/include/absl/container/internal/layout.ht:o198r:
 /usr/local/clang/include/absl/strings/str_cat.hA:B637S:L29_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL  _637C | OvMoMiAd) ;S
t      r| A                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~p
pen/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:(133s:t47d:: :note: sexpanded from macro 'ABSL_INTERNAL_X't
rin  g133* |   a b s l _ n o n n uAlBlS Ld_eIsNtT,E RcNoAnLs_tA TATlRpIhBaUNTuEm_&C AaP,T
U      R| E                            ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull',
     241  |  # d e f i n e   a b s l _ n o n n u l l   _\N
o      n| n                                              ^~~~u
ll
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |  In file included from  s2/s2buffer_operation.cc : 49 :
 In file included from  ../src/s2/s2buffer_operation.h : 27 :
tIn file included from h../src/s2/s2builder.hi:s36):
)In file included from )../src/s2/mutable_s2shape_index.h :A30B:
SIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:A66T:
TIn file included from R/usr/local/clang/include/absl/container/internal/btree.hI:B70U:
TIn file included from E/usr/local/clang/include/absl/container/internal/layout.h_:L198I:
F/usr/local/clang/include/absl/strings/str_cat.hE:T639I:M29E:_ Bwarning: Otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
ND {   639  |  v o i d   S t r A p p e n d ( s t d : : s t r i n g *  \a
b      s| l               ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n32u:l9l:  dnote: emacro 'ABSL_INTERNAL_IF_false' defined heres
t,    c32o | n#sdte fAilnpeh aANBuSmL&_ IaN,T
E      R| N                            ^A
L_/usr/local/clang/include/absl/base/nullability.hI:F241_:f22a:l snote: eexpanded from macro 'absl_nonnull'(
if  _241s | a#tdiesffiineed ,a b.s.l._)n o_n_nVuAl_lA R_GNSo_n_n
u      l| l        ^

      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646In file included from :s2/s2boolean_operation.cc36::82 :
In file included from warning: /usr/local/clang/include/absl/container/flat_hash_map.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]45
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202  :6463 | :i nwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ne v  o202i | d   SAtBrSALp_pIeNnTdE(RsNtAdL:_:Xs(tirnisnegr*t _aobrs_la_snsoingnnu,l li ndseesrtt,_ ocro_nassts iAglnp_hiamNpulm,&  &a&,,
       c| o                                   ^n
st/usr/local/clang/include/absl/base/nullability.h&:,241 :t22r:u enote: ,expanded from macro 'absl_nonnull'

      |     ^241
 | #/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:e133f:i52n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n133o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2boolean_operation.cc:82:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2buffer_operation.cc:49:
In file included from ../src/s2/s2buffer_operation.h:27:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:30:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_closed_set_normalizer.cc -o s2/s2builderutil_closed_set_normalizer.o
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2builder.ccl:l71
:
      In file included from |                      ^
../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:In file included from 14s2/s2builder_graph.cc:: 18:
warning: In file included from ../src/s2/s2builder_graph.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
31:
In file included from ../src/s2/s2builder.h:31:
  In file included from 489/usr/local/clang/include/absl/container/flat_hash_set.h | : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19v:
oIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hd: 59(:
*In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l1309e: 35i:n vwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ian t1309) | (vvooiidd *R eagbisslt_enruClolnadbVialriTtrya_cuenrk(nvoowind) ,(
*      a| b             ^s
l_no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  fnote: nexpanded from macro 'absl_nullable')
(
        | 257                                  ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien e_ Naublslla_bnloen
n      u| l                      ^l
 _NonnulIn file included from ls2/s2builder.cc
:      71| :
                     ^In file included from 
../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:In file included from 43s2/s2builder_graph.cc:
:In file included from 18/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19../src/s2/s2builder_graph.h:
:In file included from 31/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59../src/s2/s2builder.h:
:In file included from 31/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/container/hash_container_defaults.h:
:/usr/local/clang/include/absl/synchronization/mutex.h19::
489In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h45::59 :
In file included from warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31489:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 1310 : 17 :  vwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
d ( *1310a | b s l _ ncuolnlsatb lceh airn*v aarbisaln_tn)o(nvnouildl*  masbgs,l _cnounlslta bvioliidt*y _aubnskln_onwonn)n,u
l      l|                                              ^c
v)/usr/local/clang/include/absl/base/nullability.h):;289
:      34| :                ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nullability_unknown':
241:22:   289 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_inlointnyu_luln k_nNoownnn u_lNlu
l      l| _                     ^u
nspecifIn file included from is2/s2builder_graph.cce:d18
:
      In file included from | ../src/s2/s2builder_graph.h                                 ^:
31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59In file included from :
s2/s2builder.ccIn file included from :/usr/local/clang/include/absl/strings/cord.h71::
94In file included from :
../src/s2/s2builder.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h31::
31In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/synchronization/mutex.h::431310:
:In file included from 47/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from  /usr/local/clang/include/absl/strings/cord.h1310: | 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t490 :c13h:a rwarning: *type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
abs  l490_ | n o n n u l lv omisdg*,  acbosnls_tn uvloliadb*i laibtsyl__unnoknnnouwlnl  acrvg)));;

            | |             ^                                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::289241::3422::  note: note: expanded from macro 'absl_nullability_unknown'expanded from macro 'absl_nonnull'

    241289 |  | ##defidneef ianbes la_bnsoln_nnuullll a_bNiolnintuyl_lu
n      k| n                     ^o
wn _Null_unspecified
      |                                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2builder.cca:b71s:
lIn file included from _../src/s2/s2builder.hn:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43 :
_In file included from N/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19n:
uIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:
59      :
| In file included from                      ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explIn file included from is2/s2builder_graph.ccc:i18t:
 In file included from R../src/s2/s2builder_graph.he:a31d:
eIn file included from r../src/s2/s2builder.hM:u31t:
eIn file included from x/usr/local/clang/include/absl/container/flat_hash_set.hL:o43c:
kIn file included from (/usr/local/clang/include/absl/container/hash_container_defaults.hM:u19t:
eIn file included from x/usr/local/clang/include/absl/container/internal/hash_function_defaults.h&: 59m:
u/usr/local/clang/include/absl/strings/cord.h :A110B:S55L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA  L110_ | AvToTiRdI BAUpTpEe_nCdACPoTrUdRTEoDS_tBrYi(ntgh(icso)n)s
t       | C                                                                         ^~~~o
rd& src, std::string* absl_nonnull dst);/usr/local/clang/include/absl/synchronization/mutex.h
:      678| :                                                      ^35
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22: note:   expanded from macro 'absl_nonnull'678
 |     241e | x#pdleifciinte  Raebasdle_rnMountneuxlLlo c_kN(oMnuntuelxl*
       a| b                     ^s
l_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, stIn file included from ds2/s2builder.cc:::71s:
tIn file included from r../src/s2/s2builder.hi:n31g:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19n:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l59 :
dIn file included from s/usr/local/clang/include/absl/strings/cord.ht:)94;:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                                             ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::710241::7422::  warning: note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]expanded from macro 'absl_nonnull'

  241 | #  d710e | f i neex palbiscli_tn oWnrniutlelr M_uNtoenxnLuolclk
(      M| u                     ^t
ex& mu ABSL_INTERNAL_ATTRIBUTEIn file included from _s2/s2builder_graph.ccC:A18P:
TIn file included from U../src/s2/s2builder_graph.hR:E31D:
_In file included from B../src/s2/s2builder.hY:(31t:
hIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hs:)43):

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                                                                         ^~~~19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                 /usr/local/clang/include/absl/synchronization/mutex.h : 718 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      718  |      esxtpdl:i:csittr iWnrgi*t earbMsult_enxoLnoncukl(lM udtsetx)*; 
a      |                                               ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
mu  )241
 |       #| d                                  ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void*In file included from  s2/s2builder_graph.cca:b18s:
lIn file included from _../src/s2/s2builder_graph.hn:u31l:
lIn file included from a../src/s2/s2builder.hb:i31l:
iIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.hy:_43u:
nIn file included from k/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19w:
nIn file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,:
59      :
| /usr/local/clang/include/absl/strings/cord.h                   ^:
501:52:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
501 |    241  |  # deexfpilniec iatb sClh_unnoknIntuelrla t_oNro(ncnourldl_
i      n| t                     ^e
rnal::CIn file included from os2/s2builder.ccr:d71R:
eIn file included from p../src/s2/s2builder.h*: 31a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hl:_43n:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l:
lIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:r59e:
eIn file included from )/usr/local/clang/include/absl/strings/cord.h;:
94      :
| In file included from                                                    ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241801::2245::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

  241 |   #801d | e f iCnoen daibtsilon(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
_      n| o                                 ^n
null _Nonnull
      | In file included from                      ^s2/s2builder.cc
:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2builder_graph.cc802: | 18 :
 In file included from  ../src/s2/s2builder_graph.h : 31 :
 In file included from  ../src/s2/s2builder.h : 31 :
 In file included from v/usr/local/clang/include/absl/container/flat_hash_set.ho:i43d:
*In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.ha:b504i:l40i:t ywarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
nkno  w504n |   a r g )e;x
p      l| i                  ^c
it/usr/local/clang/include/absl/base/nullability.h :C289h:u34n:k Inote: texpanded from macro 'absl_nullability_unknown'e
ra  t289o | r#(dceofnisnte  Caobrsdl*_ naublslla_bnoninluiltly _cuonrkdn)o;w
n       | _                                       ^N
ul/usr/local/clang/include/absl/base/nullability.hl:_241u:n22s:p enote: cexpanded from macro 'absl_nonnull'i
fi  e241d | 
#      d| e                                 ^f
ine absl_nonnull _NonnullIn file included from 
s2/s2builder.cc      :| 71                     ^:

In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2builder_graph.cc  :81418 | :
 In file included from  ../src/s2/s2builder_graph.hC:o31n:
dIn file included from i../src/s2/s2builder.ht:i31o:
nIn file included from (/usr/local/clang/include/absl/container/flat_hash_set.hb:o43o:
lIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h(:*19a:
bIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:_59n:
o/usr/local/clang/include/absl/strings/cord.hn:n507u:l43l:  fwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
c)(  T507* |   a b s lv_oniudl lIanbiitlTirteye_(ucnokrndo_winn)t,e
r      n| a                   ^l
::/usr/local/clang/include/absl/base/nullability.hC:o241r:d22R:e pnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  atbrsele_)n;o
n      n| u                                          ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #defiIn file included from ns2/s2builder.cce: 71a:
bIn file included from s../src/s2/s2builder.hl:_31n:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h_:N19o:
nIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l59l:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                     ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullabilIn file included from is2/s2builder_graph.cct:y18_:
uIn file included from n../src/s2/s2builder_graph.hk:n31o:
wIn file included from n../src/s2/s2builder.h):,31
:
      In file included from | /usr/local/clang/include/absl/container/flat_hash_set.h                                         ^:
43:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/hash_container_defaults.h::28919::
34In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :59note: :
expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/strings/cord.h
:525:35  :289  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin  e525  | a b s l _anbuslll:a:bciolridt_yi_nutnekrnnoawln: :_CNourldlR_eupn*s paebcsilf_ineudl
l      a| b                                 ^l
e current_leaIn file included from fs2/s2builder.cc_: 71=:
 In file included from n../src/s2/s2builder.hu:l31l:
pIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.hr:;43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h                                  ^:
19:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::25759::
23In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
257/usr/local/clang/include/absl/synchronization/mutex.h | :#815d:e16f:i nwarning: etype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
abs  l815_ | n u l l a b l e   _ N u lTl*a balbes
l      _| n                      ^u
llability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnIn file included from ull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/s2builder_graph.cc:18:
In file included from In file included from ../src/s2/s2builder_graph.hs2/s2builder.cc::3171:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2builder.h::3131:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/container/flat_hash_set.h::4343:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::1919:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5959:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::58294::
37In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:850:16: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]582
 |      850  | e x p l i c icto nCshtu nTk*R aanbgsel(_cnoonnsntu lClo rodb*j eacbts,l
_      n| o               ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :c22o:r dnote: )expanded from macro 'absl_nonnull' 
:   c241o | r#dd_e(fcionred )a b{s}l
_      n| o                                    ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        | 241                     ^ | 
#define absl_nonnull _NonnulIn file included from ls2/s2builder.cc
:      71| :
                     ^In file included from 
../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::tIn file included from ys2/s2builder_graph.ccp:e18_:
iIn file included from d../src/s2/s2builder_graph.he:n31t:
iIn file included from t../src/s2/s2builder.hy:<31T:
>In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h::t43y:
pIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h:::19*:
 In file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hb:s59l:
_/usr/local/clang/include/absl/strings/cord.hn:o588n:n17u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
eth  o588d | ) ( ) 
       c| o                                            ^n
st/usr/local/clang/include/absl/base/nullability.h :C241o:r22d:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ec oarbds_l;_
n      o| n                ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _NonnullIn file included from 
s2/s2builder.cc      :| 71                     ^:

In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* abIn file included from ss2/s2builder_graph.ccl:_18n:
oIn file included from n../src/s2/s2builder_graph.hn:u31l:
lIn file included from  ../src/s2/s2builder.hc:o31n:
dIn file included from )/usr/local/clang/include/absl/container/flat_hash_set.h;:
43      :
| In file included from                                  ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h241::5922:
: /usr/local/clang/include/absl/strings/cord.h:note: 641expanded from macro 'absl_nonnull':
33:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def  i641n | e   a b suls_innogn npuoliln t_eNro n=n ucloln
s      t|                       ^c
har* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2builder.cc_:N71o:
nIn file included from n../src/s2/s2builder.hu:l31l:

In file included from       /usr/local/clang/include/absl/container/flat_hash_set.h| :                     ^43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2builder_graph.cc::24118::
22In file included from :../src/s2/s2builder_graph.h :31note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2builder.h:31  :
241In file included from  | /usr/local/clang/include/absl/container/flat_hash_set.h#:d43e:
fIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hn:e19 :
aIn file included from b/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:l59_:
n/usr/local/clang/include/absl/strings/cord.ho:n655n:u39l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn  u655l | l 
        |                       ^e
xplicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2builder.ccl:l71 :
_In file included from N../src/s2/s2builder.ho:n31n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.hl:
43      :
| In file included from                      ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2builder_graph.cc23::18 :
In file included from note: ../src/s2/s2builder_graph.hexpanded from macro 'absl_nullable':
31:
In file included from   ../src/s2/s2builder.h257: | 31#:
dIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hf:i43n:
eIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.ha:b667l:e44 :_ Nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
labl  e667
 |        |                        ^s
tatic CordIn file included from  s2/s2builder.ccA:d71v:
aIn file included from n../src/s2/s2builder.hc:e31A:
nIn file included from d/usr/local/clang/include/absl/container/flat_hash_set.hR:e43a:
dIn file included from (/usr/local/clang/include/absl/container/hash_container_defaults.hC:h19a:
rIn file included from I/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:e59r:
aIn file included from t/usr/local/clang/include/absl/strings/cord.ho:r94*:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o923n:n48u:l lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
t,   s923i | z e _ t   n _ b y t e s ) ; 
        |                                             ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
co  n241s | t# dCeofnidniet iaobns*l _anbosnln_unlull l_aNbolnen ubl)l;

            | |                      ^                                               ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2builder_graph.ccn:u18l:
lIn file included from a../src/s2/s2builder_graph.hb:l31e:
 In file included from _../src/s2/s2builder.hN:u31l:
lIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.hb:l43e:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                      ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIteratIn file included from os2/s2builder.ccr:*71 :
aIn file included from b../src/s2/s2builder.hs:l31_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl: 19i:
tIn file included from ,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :s59i:
zIn file included from e/usr/local/clang/include/absl/strings/cord.h_:t94 :
nIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hb:y31t:
e/usr/local/clang/include/absl/synchronization/mutex.hs:)948;:
10      :|                                      ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22:   948 | note:  expanded from macro 'absl_nonnull' 
bo  o241l |  #(d*eafbisnle_ naublslla_bnloen neuvlall __)N(ocnonnusltl 
C      o| n                     ^d
ition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from In file included from s2/s2builder_graph.cc/usr/local/clang/include/absl/container/flat_hash_set.h::1843:
:
In file included from In file included from ../src/s2/s2builder_graph.h/usr/local/clang/include/absl/container/hash_container_defaults.h::3119:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::3159:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/strings/cord.h::4394:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::1931:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::94859::
48:/usr/local/clang/include/absl/strings/cord.h :730warning: :36type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
948 |     b730o | o l   ( *eaxbpslli_cniutl lCahbalreR aenvgael(_c)o(ncsotn sCto rCdo*n daibtsilo_nn*o nanbuslll_ ncoonrndu)l l:)  c=o rndu_l(lcpotrrd;)
       {| }                                               ^

      | /usr/local/clang/include/absl/base/nullability.h                                   ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2builder_graph.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2builder_graph.h::3131:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2builder.h::95131::
9In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h :43warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
  In file included from 951/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | : 59 :
v/usr/local/clang/include/absl/strings/cord.ho:i736d:*17 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l736l | a b l e  caorngs_t  =C onrudl*l patbrs;l
_      n| o        ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :c23o:r dnote: _expanded from macro 'absl_nullable';

      |                   ^257
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^In file included from 
s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2builder_graph.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2builder_graph.h:  31241:
 | In file included from #../src/s2/s2builder.hd:e31f:
iIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.he: 43a:
bIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hl:_19n:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.h :_795N:o43n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^  
795 |   friend void AbslForIn file included from ms2/s2builder.cca:t71F:
lIn file included from u../src/s2/s2builder.hs:h31(:
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_set.hs:l43::
:In file included from C/usr/local/clang/include/absl/container/hash_container_defaults.ho:r19d:
*In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b59s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
c/usr/local/clang/include/absl/synchronization/mutex.ho:r956d:,52
:       | warning:                                           ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :95622 | :   note: sexpanded from macro 'absl_nonnull't
at  i241c |  #bdoeofli nCea satbAsnld_CnaolnlnFuulnlc t_iNoonn(ncuolnls
t       | C                     ^o
ndition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from In file included from s2/s2builder.cc/usr/local/clang/include/absl/container/hash_container_defaults.h::7119:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::3159:
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/strings/cord.h::43898:
:In file included from 27/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:  94898:
 | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :f31r:
i/usr/local/clang/include/absl/synchronization/mutex.he:n961d: 34c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 Co  r961d | z I nsftoa*t iacb sblo_onlu lClaalbllBey RGeeft(CcoorndsztI nTf*o FaobrsTle_sntoinnngu(l
l       | s                          ^e
lf)/usr/local/clang/include/absl/base/nullability.h :{257
:      23| :                                 ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2builder_graph.ccl:l18
:
      In file included from | ../src/s2/s2builder_graph.h                     ^:
31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43In file included from :s2/s2builder.cc :71warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2builder.h:31:
In file included from   /usr/local/clang/include/absl/container/flat_hash_set.h927: | 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 979 : 43 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  Co  r979d | R e ps*t aatbiscl _bnouolll aAbllwea yrseTpr)u;e
(      c| o                                          ^n
st /usr/local/clang/include/absl/base/nullability.hC:o257n:d23i:t inote: oexpanded from macro 'absl_nullable'n
*   a257b | s#ld_enfuilnlea balbes)l _{n urleltaubrlne  t_rNuuel;l a}b
l      e| 
                                          ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2builder_graph.ccn:u18l:
lIn file included from a../src/s2/s2builder_graph.hb:l31e:
 In file included from _../src/s2/s2builder.hN:u31l:
lIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.hb:l43e:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                      ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2builder.cc23::71 :
In file included from note: ../src/s2/s2builder.hexpanded from macro 'absl_nullable':
31:
In file included from   /usr/local/clang/include/absl/container/flat_hash_set.h257: | 43#:
dIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hf:i19n:
eIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b59s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:l31e:
 /usr/local/clang/include/absl/synchronization/mutex.h_:N1033u:l20l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      |                       ^ 
1033 |   void Wait(MuIn file included from ts2/s2builder_graph.cce:x18*:
 In file included from a../src/s2/s2builder_graph.hb:s31l:
_In file included from n../src/s2/s2builder.ho:n31n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.hl: 43m:
uIn file included from )/usr/local/clang/include/absl/container/hash_container_defaults.h :{19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h                   ^:
59:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::934241::3122::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

    241934 |  | # d e f ivnoei da bsselt__ndoantnau(lclo n_sNto ncnuhlalr
*       | a                     ^b
sl_nullable data, size_t In file included from ns2/s2builder.cc):;71
:
      In file included from | ../src/s2/s2builder.h                              ^:
31:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/flat_hash_set.h::25743::
23In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :19note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59  :
257In file included from  | /usr/local/clang/include/absl/strings/cord.h#:d94e:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s1050l:_31n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble  _1050N | u l lbaobolle 
W      a| i                      ^t
WithTimeout(Mutex* In file included from as2/s2builder_graph.ccb:s18l:
_In file included from n../src/s2/s2builder_graph.ho:n31n:
uIn file included from l../src/s2/s2builder.hl: 31m:
uIn file included from ,/usr/local/clang/include/absl/container/flat_hash_set.h :a43b:
sIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h:::19D:
uIn file included from r/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:59:
/usr/local/clang/include/absl/strings/cord.h:935t:i11o:n  warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
meou  t935) |   { 
        | c                              ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dseefti_ndea taab(ssli_zneo_ntn unl)l;  _ N/o/n nWurlilt
e       | d                     ^a
ta to the resulIn file included from ts2/s2builder.cc
:      71| :
          ^In file included from 
../src/s2/s2builder.h:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h241::4322:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h:note: 19expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59241:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e94f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l1069_:n32o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _N o1069n | n u lblo
o      l|                       ^W
aitWithDeadline(Mutex* absl_nonnuIn file included from ls2/s2builder_graph.ccl: 18m:
uIn file included from ,../src/s2/s2builder_graph.h :a31b:
sIn file included from l../src/s2/s2builder.h:::31T:
iIn file included from m/usr/local/clang/include/absl/container/flat_hash_set.he: 43d:
eIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hd:l19i:
nIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h): 59{:

/usr/local/clang/include/absl/strings/cord.h      :| 937                               ^:
35: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'937
 |     241  |  #adbesfli:n:ec oarbds_li_nntoenrnnualll: :_CNoorndnRuelpl*
       a| b                     ^s
l_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2builder.cc
:71:
  In file included from 257../src/s2/s2builder.h | :#31d:
eIn file included from f/usr/local/clang/include/absl/container/flat_hash_set.hi:n43e:
 In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:s19l:
_In file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l59l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l1088e:
35      :|                        ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnablIn file included from es2/s2builder_graph.ccD:e18b:
uIn file included from g../src/s2/s2builder_graph.hL:o31g:
(In file included from c../src/s2/s2builder.ho:n31s:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hc:h43a:
rIn file included from */usr/local/clang/include/absl/container/hash_container_defaults.h :a19b:
sIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:n59u:
l/usr/local/clang/include/absl/strings/cord.hl:a938b:l35e:  nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
e);  
938       | |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.ha:b257s:l23::: cnote: oexpanded from macro 'absl_nullable'r
d_  i257n | t#edrenfailn:e: CaobrsdlR_enpu*l laabbslle_ n_oNnunlullalb laes
_      t| r                      ^e
e() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2builder.cc22::71 :
In file included from note: ../src/s2/s2builder.hexpanded from macro 'absl_nonnull':
31:
In file included from   /usr/local/clang/include/absl/container/flat_hash_set.h241: | 43#:
dIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hf:i19n:
eIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b59s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:o1091n:n26u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
 1091 |   bool WaitCIn file included from os2/s2builder_graph.ccm:m18o:
nIn file included from (../src/s2/s2builder_graph.hM:u31t:
eIn file included from x../src/s2/s2builder.h*: 31a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hl:_43n:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l m  u939t | e x , 
       c| o                         ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22: note: expanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sals__ncohnanrusl(l)  _cNoonnsntu;l
l      
|                       ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2builder.ccn:n71u:
lIn file included from l../src/s2/s2builder.h :_31N:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                     ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2builder_graph.cc: 181093:
 | In file included from  ../src/s2/s2builder_graph.h :v31o:
iIn file included from d../src/s2/s2builder.h :R31e:
mIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hv:e43(:
bIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hs:e19_:
iIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:e59r:
n/usr/local/clang/include/absl/strings/cord.ha:l941:::35P:e rwarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]h
rea  d941S | y n c h *a basbls:l:_cnoorndn_uilnlt esr)n;a
l      :| :                                             ^C
or/usr/local/clang/include/absl/base/nullability.hd:R241e:p22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien ec laebasrl(_)n;o
n      n| u                                  ^l
l _N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
note:       expanded from macro 'absl_nullable'| 
                     ^  
257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2builder.ccn:u71l:
lIn file included from 
../src/s2/s2builder.h      :| 31                     ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34In file included from :s2/s2builder_graph.cc :18warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2builder_graph.h
:31:
In file included from ../src/s2/s2builder.h :110931 | :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.he:x43p:
lIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hc:i19t:
 In file included from M/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:t59e:
x/usr/local/clang/include/absl/strings/cord.hL:o957c:k27M:a ywarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(Mut  e957x | *   a b svlo_indu lSleatbTlree em(uC)o
r      d| R                                 ^e
p* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | r#edpe,f icnoen satb sClo_rnduzlUlpadbaltee S_cNouplel&a bslceo
p      e| )                      ^;

      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2builder.ccu:l71l:
 In file included from _../src/s2/s2builder.hN:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h                     ^:
19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   eIn file included from xs2/s2builder_graph.ccp:l18i:
cIn file included from i../src/s2/s2builder_graph.ht: 31M:
uIn file included from t../src/s2/s2builder.he:x31L:
oIn file included from c/usr/local/clang/include/absl/container/flat_hash_set.hk:M43a:
yIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.he:(19M:
uIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:x59*:
 /usr/local/clang/include/absl/strings/cord.ha:b961s:l34_:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
abl  e961  | m u ,   cvoonisdt  SCeotnTdrieteiOornE&m pctoyn(dCo)r
d      R| e                                 ^p
* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n unote: lexpanded from macro 'absl_nullable'l
ab  l257e |  #rdeepf,i
n      e|                                   ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:u23l:l anote: bexpanded from macro 'absl_nullable'l
e   _257N | u#ldleafbilnee
       a| b                      ^s
l_nullable _NullaIn file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59b:
lIn file included from e/usr/local/clang/include/absl/strings/cord.h
:      94| :
                      ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* abslIn file included from _s2/s2builder_graph.ccn:u18l:
lIn file included from a../src/s2/s2builder_graph.hb:l31e:
 In file included from c../src/s2/s2builder.ho:n31s:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hm:u43_:
;In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19         ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/base/nullability.h59::
257:/usr/local/clang/include/absl/strings/cord.h23::968 :31note: :expanded from macro 'absl_nullable' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #d  e968f | i n e   avbosild_ nEumlpllaabcleeT r_eNeu(lCloarbdlRee
p      *|                        ^a
bsl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parIn file included from es2/s2builder.ccn:t71,:

In file included from       ../src/s2/s2builder.h| :                              ^31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/base/nullability.h::43241:
:In file included from 22/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1146s:l7_:n owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ull  _1146N | o n n u l l 
t      h| i                     ^s
)) ABSL_EXCLUSIVE_LOCK_FIn file included from Us2/s2builder_graph.ccN:C18T:
IIn file included from O../src/s2/s2builder_graph.hN:(31m:
uIn file included from )../src/s2/s2builder.h
:      31| :
      ^~~~In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void Co/usr/local/clang/include/absl/synchronization/mutex.hm:m1153i:t39T:r ewarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
con s1153t |   C oerxdpRleipc*i ta bRsell_enauslalbalbelMeu toelxdL_orcekp(,M
u      t| e                                   ^x
* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | m#ud)e
f      i| n                                      ^e
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241_ | N#udlelfaibnlee 
a      b| s                      ^l
_nonnull _In file included from Ns2/s2builder_graph.cco:n18n:
uIn file included from l../src/s2/s2builder_graph.hl:
31      :
| In file included from                      ^../src/s2/s2builder.h
:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                  In file included from  s2/s2builder.cc : 71C:
oIn file included from r../src/s2/s2builder.hd:R31e:
pIn file included from */usr/local/clang/include/absl/container/flat_hash_set.h :a43b:
sIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h_:n19o:
nIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l59l:
 In file included from r/usr/local/clang/include/absl/strings/cord.he:p94,:
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31s:
t/usr/local/clang/include/absl/synchronization/mutex.h :C1158o:r53d:z Uwarning: p'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
ateS c1158o | p e &   s c oMpuet,e
x      &|                               ^m
u /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#AdTeTfRiInBeU TaEb_sClA_PnToUnRnEuDl_lB Y_(Ntohninsu)l,l

            | |                                                     ^~~~                     ^

In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/synchronization/mutex.h::191166:
:In file included from 39/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59:
warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
982:39:  warning: 1166type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  e  x982p | l i c i tv oRiedl eAapspaebnldeTMrueteeTxoLIonclki(nMeudt(eCxo*r daRbespl*_ naobnsnlu_lnlo nmnuu,l lc otnrsete ,C
o      n| d                                      ^i
ti/usr/local/clang/include/absl/base/nullability.ho:n241&: 22c:o nnote: dexpanded from macro 'absl_nonnull')

        | 241                                      ^ | 
#de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void In file included from As2/s2builder.ccp:p71e:
nIn file included from d../src/s2/s2builder.hT:r31e:
eIn file included from T/usr/local/clang/include/absl/container/flat_hash_set.ho:T43r:
eIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h(:C19o:
rIn file included from d/usr/local/clang/include/absl/container/internal/hash_function_defaults.hR:e59p:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l1179l: 10t:r ewarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 Me t1179h | o d IMduetnetxi*f iaebrs lm_entuhlolda)b;l
e       | m                                   ^u
_;/usr/local/clang/include/absl/base/nullability.h
:      241| :         ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:23  :241  | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en oanbnsull_ln u_lNloanbnluel l_
N      u| l                     ^l
able
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2builder.ccl: 71_:
NIn file included from o../src/s2/s2builder.hn:n31u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h
:      43| :
                     ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52:In file included from  s2/s2builder_graph.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2builder_graph.h:31:
In file included from  ../src/s2/s2builder.h1212: | 31b:
oIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hl: 43C:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hd:i19t:
iIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn::59::
C/usr/local/clang/include/absl/strings/cord.ha:s989t:A31n:d Cwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lMet  h989o | d ( c o nvsoti dC oPnrdeipteinodnT*r eaeb(sClo_rndoRnenpu*l la bcs)l _{n
o      n| n                                                   ^u
ll /usr/local/clang/include/absl/base/nullability.ht:r241e:e22,:  Mnote: eexpanded from macro 'absl_nonnull't
ho  d241I | d#ednetfiifniee ra bmselt_hnoodn)n;u
l      l|                                ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builder_graph.ccs2/s2builder.cc::1871:
:
In file included from In file included from ../src/s2/s2builder_graph.h../src/s2/s2builder.h::3131:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/container/flat_hash_set.h::3143:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/container/hash_container_defaults.h::4319:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::1959:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/strings/cord.h::5994:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::99431::
30:/usr/local/clang/include/absl/synchronization/mutex.h :1221warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]54
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]994
 |      1221v | obiodo lC oCpoynTdoi(tsitodn::::sCtarsitnAgn*d CaablsllF_unnocntniuolnl( cdosnts)t  cCoonnsdti t{i
o      n| *                             ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   c241) |  #{d
e      f| i                                                     ^n
e a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull In file included from ds2/s2builder.ccs:t71):
 In file included from c../src/s2/s2builder.ho:n31s:
tIn file included from ;/usr/local/clang/include/absl/container/flat_hash_set.h
:      43| :
                           ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2259::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#define ab/usr/local/clang/include/absl/synchronization/mutex.hs:l1230_:n12o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _N o1230n | n u l l 
b      o| o                     ^l
 (*absl_nonnull func)(T* absl_nullability_unkIn file included from ns2/s2builder_graph.cco:w18n:
)In file included from ,../src/s2/s2builder_graph.h
:      31| :
           ^In file included from 
../src/s2/s2builder.h:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h241::4322:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h:note: 19expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59241:
 | /usr/local/clang/include/absl/strings/cord.h#:d1012e:f37i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_ n1012o | n n u l la b_sNlo:n:ncuolrld
_      i| n                     ^t
ernal::In file included from Cs2/s2builder.cco:r71d:
zIn file included from I../src/s2/s2builder.hn:f31o:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l:
lIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hb:l59e:
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:r94d:
zIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31f:
o/usr/local/clang/include/absl/synchronization/mutex.h(:)1230 :c34o:n swarning: ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
{
      |                                      ^1230
 |  /usr/local/clang/include/absl/base/nullability.h : 257 :b23o:o lnote:  expanded from macro 'absl_nullable'(
*a  b257s | l#_dneofninnuel la bfsuln_c)(T* absl_nulnlualblialbiltey __uNnuklnloawbnl)e,

            | |                       ^                                 ^

/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define In file included from as2/s2builder_graph.ccb:s18l:
_In file included from n../src/s2/s2builder_graph.hu:l31l:
aIn file included from b../src/s2/s2builder.hi:l31i:
tIn file included from y/usr/local/clang/include/absl/container/flat_hash_set.h_:u43n:
kIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.ho:w19n:
 In file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hN:u59l:
l/usr/local/clang/include/absl/strings/cord.h_:u1017n:s51p:e cwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied
       1017|  |                                  ^ 
   void set_corIn file included from ds2/s2builder.ccz:_71i:
nIn file included from f../src/s2/s2builder.ho:(31c:
oIn file included from r/usr/local/clang/include/absl/container/flat_hash_set.hd:_43i:
nIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.he:r19n:
aIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:::59C:
oIn file included from r/usr/local/clang/include/absl/strings/cord.hd:z94I:
nIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.ho:*31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s1231l:_8n:o nwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]u
ll  c1231o | r d z _ iTn*f oa)b s{l
_      n| u                                                  ^l
la/usr/local/clang/include/absl/base/nullability.hb:i241l:i22t:y _note: uexpanded from macro 'absl_nonnull'n
kn  o241w | n# daerfgi)n
e       | a       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n289o:n34n:u lnote: lexpanded from macro 'absl_nullability_unknown' 
_N  o289n | n#udlelf
i      n| e                     ^ 
absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19In file included from :
s2/s2builder.ccIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h71::
59In file included from :
../src/s2/s2builder.h:/usr/local/clang/include/absl/strings/cord.h31::
1049In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h56::43 :
In file included from warning: /usr/local/clang/include/absl/container/hash_container_defaults.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h: 591049:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h :s94t:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hi:c31 :
b/usr/local/clang/include/absl/synchronization/mutex.ho:o1241l: 12G:e twarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
atA u1241x | ( a b s lb:o:oclo r(d*_aibnstle_rnnoanln:u:lClo rfduRnecp)*( Ta*b salb_snlo_nnnuulllla brielpi,t
y      _| u                                                       ^n
kn/usr/local/clang/include/absl/base/nullability.ho:w241n:)22,:
       | note:            ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from In file included from s2/s2builder.cc../src/s2/s2builder_graph.h::7131:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2builder.h::3131:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/container/flat_hash_set.h::4343:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::1919:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5959:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::105094::
45In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:1241:34:  1050 | warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
     1241  |          b o o l   ( * a b s l _ n oanbnsull:l: sfturnicn)g(_Tv*i eawb*s la_bnsull_lnaobninluiltly _furnakgnmoewnnt)),;

            | |                                  ^                                            ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::289241::3422::  note: note: expanded from macro 'absl_nullability_unknown'expanded from macro 'absl_nonnull'

    241289 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbli l_iNtoyn_nuunlkln
o      w| n                     ^ 
_Null_unspecified
      |                                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:In file included from 59s2/s2builder.cc:
:71/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1054../src/s2/s2builder.h::3731::
 In file included from /usr/local/clang/include/absl/container/flat_hash_set.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h: 191054:
 | In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h::c31o:
r/usr/local/clang/include/absl/synchronization/mutex.hd:_1242i:n44t:e rwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
l:: C1242o | r d R e pt*y paebnsalm_en oanbnsull:l: tryeppe,_
i      d| e                                    ^n
ti/usr/local/clang/include/absl/base/nullability.ht:y241<:T22>:: :note: texpanded from macro 'absl_nonnull'y
pe  *241  | a#bdself_innuel laabbsill_intoyn_nuunlkln o_wNno
n      n| u                                           ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 289                     ^:
34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknIn file included from os2/s2builder_graph.ccw:n18 :
_In file included from N../src/s2/s2builder_graph.hu:l31l:
_In file included from u../src/s2/s2builder.hn:s31p:
eIn file included from c/usr/local/clang/include/absl/container/flat_hash_set.hi:f43i:
eIn file included from d/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
                                 ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(cIn file included from hs2/s2builder.cca:r71*:
 In file included from a../src/s2/s2builder.hb:s31l:
_In file included from n/usr/local/clang/include/absl/container/flat_hash_set.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl: 19d:
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.h): 59c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94;:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                 ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::1249241::822::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

   2411249 |  | # d e f iTn*e ab salb_snlo_nnnounlnlu lolb j_eNcotn,n
u      l| l       ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::tyIn file included from ps2/s2builder_graph.cce:_18i:
dIn file included from e../src/s2/s2builder_graph.hn:t31i:
tIn file included from y../src/s2/s2builder.h<:T31>:
:In file included from :/usr/local/clang/include/absl/container/flat_hash_set.ht:y43p:
eIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h::*19 :
aIn file included from b/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:l59_:
n/usr/local/clang/include/absl/strings/cord.ho:n1078n:u33l:l  warning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
thod )1078( | ) ) 
a      b| s                                          ^l
::/usr/local/clang/include/absl/base/nullability.hc:o241r:d22_:i nnote: ternexpanded from macro 'absl_nonnull'a
l:  :241C | o#rddeRfeipn*e  aabbssll__nnoonnnnuullll  T_aNkoenRneupl(l)
       c| o                     ^n
st&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builder_graph.ccs2/s2builder.cc::1871:
:
In file included from In file included from ../src/s2/s2builder_graph.h../src/s2/s2builder.h::3131:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/container/flat_hash_set.h::3143:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/container/hash_container_defaults.h::4319:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::1959:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/strings/cord.h::5994:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::107931::
33:/usr/local/clang/include/absl/synchronization/mutex.h :1259warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]14
: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1079
 |    a1259b | s l : : ccoornds_ti nTt*e ranbasll:_:nCoonrnduRlelp *o bajbesclt_,n
o      n| n             ^u
ll/usr/local/clang/include/absl/base/nullability.h :T241a:k22e:R enote: pexpanded from macro 'absl_nonnull'(
)   &241& | ;#
d      e| f                                ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^In file included from 
s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2builder_graph.cc22::18 :
In file included from note: ../src/s2/s2builder_graph.hexpanded from macro 'absl_nonnull':
31:
In file included from   ../src/s2/s2builder.h241: | 31#:
dIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hf:i43n:
eIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o59n:
n/usr/local/clang/include/absl/strings/cord.hu:l1116l: 37_:N owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull
       | 1116                     ^ | 
  const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordStatIn file included from es2/s2builder.cc(:)71 :
cIn file included from o../src/s2/s2builder.hn:s31t:
;In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h      :| 43                                    ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:/usr/local/clang/include/absl/base/nullability.h19::
257In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h23::59 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nullable':
94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h257: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f1279i:n35e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_nu l1279l | avbolied  _RNeuglilsatbelreM
u      t| e                      ^x
Profiler(void (*absl_nonnull fn)In file included from (s2/s2builder_graph.cci:n18t:
6In file included from 4../src/s2/s2builder_graph.h_:t31 :
wIn file included from a../src/s2/s2builder.hi:t31_:
cIn file included from y/usr/local/clang/include/absl/container/flat_hash_set.hc:l43e:
sIn file included from )/usr/local/clang/include/absl/container/hash_container_defaults.h):;19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h                                  ^:
59:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::2411120::2230::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |  #1120d | e f ivnoei da bCsolp_ynToonAnrurlaly I_mNpoln(ncuhlalr
*       | a                     ^b
sl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2builder.cc241::7122:
:In file included from ../src/s2/s2builder.h :31note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43  :
241In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h#:d19e:
fIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e59 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 1293_:N33o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                      ^ 
1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18In file included from :
s2/s2builder.ccIn file included from :../src/s2/s2builder_graph.h71::
31In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2builder.h31::
31In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h43::
43In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h19::
19In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h59::
59:
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/strings/cord.h425::123462::20 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1234425 |  | i n lfirniee ncdo nvsoti dc hCaorp*y CaobrsdlT_onSotnrniunlgl( cCoonrsdt: :CIonrldi&n esRrecp,: :satsd_:c:hsatrrsi(n)g *c oanbsstl _{n
o      n| n                   ^u
ll/usr/local/clang/include/absl/base/nullability.h :d241s:t22):; 
note:       expanded from macro 'absl_nonnull'| 
                                                             ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bsl  _241n | o#ndneufliln e_ Naobnsnlu_lnl
      |                      ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hs2/s2builder_graph.cc::1918:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/s2builder_graph.h::5931:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2builder.h::43731::
47In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h :43warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h437: | 59 :
 /usr/local/clang/include/absl/strings/cord.h : 1239 : 38 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1239  |  i n l i n e   a b s l : : c o rsdt_di:n:tsetrrnianlg:*: CaobrsdlR_enpo*n naublsll _dnsotn)n;u
l      l|                                                ^C
or/usr/local/clang/include/absl/base/nullability.hd::241::I22n:l inote: nexpanded from macro 'absl_nonnull'e
Re  p241: | :#adse_ftirneee (a)b
s      l| _                                     ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19In file included from :
s2/s2builder_graph.ccIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h18::
59In file included from :
../src/s2/s2builder_graph.h:/usr/local/clang/include/absl/strings/cord.h31::
480In file included from :../src/s2/s2builder.h39::31 :
In file included from warning: /usr/local/clang/include/absl/container/flat_hash_set.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19  :
480In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 /usr/local/clang/include/absl/strings/cord.hu:s1245i:n38g:  pwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nter  1245= |  icnolnisnte  vaablsule:_:tcyopred*_ ianbtselr_nnaoln:n:uClolr;d
R      e| p                                      ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241  | C#odredf:i:nIen laibnselR_enpo:n:nturlele (_)N
o      n| n                                     ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      257| :                     ^23
: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |  In file included from  s2/s2builder_graph.cc : 18e:
xIn file included from p../src/s2/s2builder_graph.hl:i31c:
iIn file included from t../src/s2/s2builder.h :C31h:
uIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hk:I43t:
eIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.ha:t19o:
rIn file included from (/usr/local/clang/include/absl/container/internal/hash_function_defaults.hc:o59r:
d/usr/local/clang/include/absl/strings/cord.h_:i1258n:t36e:r nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::C o1258r | diRnelpi*n ea bcsolr_dn_oinnntuelrln atlr:e:eC)o;r
d      R| e                                                   ^p
Fla/usr/local/clang/include/absl/base/nullability.ht:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld
e      f| i                                   ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:In file included from 71s2/s2builder_graph.cc:
:In file included from 18../src/s2/s2builder.h:
:In file included from 31../src/s2/s2builder_graph.h:
:In file included from 31/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43../src/s2/s2builder.h:
:In file included from 31/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/container/hash_container_defaults.h:
:19/usr/local/clang/include/absl/strings/cord.h:
:In file included from 507/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::4359::
 /usr/local/clang/include/absl/strings/cord.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1268
:51:   warning: 507type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
     v1268o | iidn lIinniet Tvroeied( cCoorrdd_:i:nItnelrinnaelR:e:pC:o:rEdmRpelpa*c eaTbrsele_(nCoonrnduRlelp *t raebes)l;_
n      o| n                                          ^n
ull/usr/local/clang/include/absl/base/nullability.h :r241e:p22,:
       | note:                                                   ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: ne expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 | In file included from  s2/s2builder_graph.cc : 18 :
aIn file included from b../src/s2/s2builder_graph.hs:l31::
:In file included from c../src/s2/s2builder.ho:r31d:
_In file included from i/usr/local/clang/include/absl/container/flat_hash_set.hn:t43e:
rIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.ha:l19::
:In file included from C/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:r59d:
R/usr/local/clang/include/absl/strings/cord.he:p1275*: 51a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null a1275b | lien lciunrer evnoti_dl eCaofr_d :=: InnullilnpetRre;p
:      :| E                                  ^m
pl/usr/local/clang/include/absl/base/nullability.ha:c257e:T23r:e enote: (expanded from macro 'absl_nullable'C
or  d257R | e#pd*e faibnsel _anbosnln_unlull lraebpl,e
       _| N                                                  ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22
:       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SIn file included from es2/s2builder.cct:T71r:
eIn file included from e../src/s2/s2builder.h(:C31o:
rIn file included from d/usr/local/clang/include/absl/container/flat_hash_set.hR:e43p:
*In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o59n:
n/usr/local/clang/include/absl/strings/cord.hu:l582l: 37r:e pwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                               ^
  582/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :e xnote: pexpanded from macro 'absl_nonnull'l
ic  i241t |  #CdheufniknRea nagbes(lc_onnosntn uClolr d_*N oanbnsull_ln
o      n| n                     ^u
ll cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:In file included from 54s2/s2builder.cc:: 71:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2builder.h
:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h: 431290:
 | inlIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hn:e19 :
vIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:d59 :
C/usr/local/clang/include/absl/strings/cord.ho:r588d::17::I nwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
neR  e588p | : : S e tcTornesetO rCEomrpdt*y (aCbosrld_Rneopn*n ualbls lc_onrudl_l;a
b      l| e                ^ 
re/usr/local/clang/include/absl/base/nullability.hp:,241
:      22| :                                                     ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel 
_      N| u                     ^l
lable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = conIn file included from ss2/s2builder_graph.cct: 18c:
hIn file included from a../src/s2/s2builder_graph.hr:*31 :
aIn file included from b../src/s2/s2builder.hs:l31_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h;:
19      :
| In file included from                                 ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.h241::130122::56 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241 | # d1301e | fiinnlei naeb svlo_indo nCnourldl: :_INnolninnuelRle
p      :| :                     ^C
ommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abIn file included from ss2/s2builder.ccl:_71n:
uIn file included from l../src/s2/s2builder.hl:a31b:
lIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.h :_43N:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl:a19b:
lIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
                      ^
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 655s2/s2builder_graph.cc | : 18 :
 In file included from  ../src/s2/s2builder_graph.he:x31p:
lIn file included from i../src/s2/s2builder.hc:i31t:
 In file included from C/usr/local/clang/include/absl/container/flat_hash_set.hh:a43r:
IIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.he:r19a:
tIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:(59c:
o/usr/local/clang/include/absl/strings/cord.hn:s1302t: 50C:o rwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab s1302l | _ n o n n u l l   c o r d ) 
        |                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n eC oarbdsRle_pn*o nanbuslll_ n_oNnonnunlull lr
e      p| ,                     ^

      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absIn file included from ls2/s2builder_graph.cc_:n18o:
nIn file included from n../src/s2/s2builder_graph.hu:l31l:
 In file included from i../src/s2/s2builder.ht:,31 :
sIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hz:e43_:
tIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hn:_19b:
yIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:s59):
;/usr/local/clang/include/absl/strings/cord.h
:      1312| :                                           ^38
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
:22: note:  expanded from macro 'absl_nonnull'1312
 | i  n241l | i#ndee faibnsel :a:bcsolr_dn_oinnntuelrln a_lN:o:nCnourldlR
e      p| *                     ^ 
absl_nullable Cord::InlineReIn file included from ps2/s2builder.cc:::71c:
lIn file included from e../src/s2/s2builder.ha:r31(:
)In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h{:
43      :
| In file included from                                      ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::25759::
23:/usr/local/clang/include/absl/strings/cord.h :674note: :expanded from macro 'absl_nullable'37
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i674n | e   asbtsalt_incu lvloaibdl eA d_vNaunlclea(bClhea
r      I| t                      ^e
rator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToIn file included from As2/s2builder.ccr:r71a:
yIn file included from (../src/s2/s2builder.hc:h31a:
rIn file included from */usr/local/clang/include/absl/container/flat_hash_set.h :a43b:
sIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h_:n19o:
nIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l59l:
 /usr/local/clang/include/absl/strings/cord.hd:s730t:)36 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t {
        730|  |                                                ^ 
  /usr/local/clang/include/absl/base/nullability.h :e241x:p22l:i cnote: iexpanded from macro 'absl_nonnull't
 C  h241a | r#Rdaenfgien(ec oanbsstl _Cnoorndn*u lalb s_lN_onnonnunlull
l       | c                     ^o
rd) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.hIn file included from :s2/s2builder.cc31::
71In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :../src/s2/s2builder.h43::
31In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h19::
43In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h59::
19:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h1505::5941:
: /usr/local/clang/include/absl/strings/cord.h:warning: 982type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
39: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1505
 | in  l982i | n e   v oviodi dC oArpdp:e:nCdoTpryeTeoTAorIrnalyiInmepdl((CcohradrR*e pa*b salb_snlo_nnnounlnlu ldls tt)r eceo,n
s      t|                                        ^{

      | /usr/local/clang/include/absl/base/nullability.h                                        ^:
241:22: /usr/local/clang/include/absl/base/nullability.h:note: 241expanded from macro 'absl_nonnull':
22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* abslIn file included from _s2/s2builder_graph.ccn:o18n:
nIn file included from u../src/s2/s2builder_graph.hl:l31 :
tIn file included from r../src/s2/s2builder.he:e31,:
 In file included from M/usr/local/clang/include/absl/container/flat_hash_set.he:t43h:
oIn file included from d/usr/local/clang/include/absl/container/hash_container_defaults.hI:d19e:
nIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:f59i:
e/usr/local/clang/include/absl/strings/cord.hr: 1514m:e29t:h owarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
      |                                     ^1514
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:r dnote: _expanded from macro 'absl_nonnull'i
nt  e241r | n#adle:f:iCnoer daRbespl*_ naobnsnlu_lnlo n_nNuolnln utlrle
e      )|                       ^{

      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2builder.cce:f71i:
nIn file included from e../src/s2/s2builder.h :a31b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h_:n43o:
nIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hu:ll 19_:
NIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
l/usr/local/clang/include/absl/strings/cord.hl:
985      :| 30                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2builder_graph.ccu:l18l:
 In file included from _../src/s2/s2builder_graph.hN:o31n:
nIn file included from u../src/s2/s2builder.hl:l31
:
      In file included from | /usr/local/clang/include/absl/container/flat_hash_set.h                     ^:
43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2builder.cc:71:
In file included from  ../src/s2/s2builder.h1525: | 31 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h :c43o:
rIn file included from d/usr/local/clang/include/absl/container/hash_container_defaults.h_:i19n:
tIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:n59a:
l/usr/local/clang/include/absl/strings/cord.h:::988C:o37r:d Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
* ab  s988l | _ n o n nvuolild  tPrreeep)e n{d
T      r| e                            ^e
ToT/usr/local/clang/include/absl/base/nullability.hr:e241e:(22C:o rnote: dexpanded from macro 'absl_nonnull'R
ep  *241  | a#bdself_innoen naublsll _tnroenen,u lMle t_hNoodnInduelnlt
i      f| i                     ^e
r method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |    In file included from  s2/s2builder_graph.ccv:o18i:
dIn file included from  ../src/s2/s2builder_graph.hP:r31e:
pIn file included from e../src/s2/s2builder.hn:d31T:
rIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.he:(43C:
oIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.hd:R19e:
pIn file included from */usr/local/clang/include/absl/container/internal/hash_function_defaults.h :a59b:
s/usr/local/clang/include/absl/strings/cord.hl:_1530n:o55n:n uwarning: ll trtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
e, M e1530t | hiondlIidneen tCiofride:r: CmheutnhkoIdt)e;r
a      t| o                              ^r
::/usr/local/clang/include/absl/base/nullability.hC:h241u:n22k:I tnote: eexpanded from macro 'absl_nonnull'r
at  o241r | (#cdoenfsitn eC oarbds*l _anbosnln_unloln n_uNloln ncuolrld
)       | {                     ^

      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2builder.ccn:n71u:
lIn file included from l../src/s2/s2builder.h :_31N:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                     ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builder.ccs2/s2builder_graph.cc::7118:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2builder_graph.h::3131:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h../src/s2/s2builder.h::4331:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/flat_hash_set.h::1943:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::5919:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::111659::
37:/usr/local/clang/include/absl/strings/cord.h :1666warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]48
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1116 |    c1666o | nisntl icnrec _Cionrtde rCnoarld::::CArdcvCaonrcdeSAtnadtRee*a da(bCshla_rnIutlelraabtloer *M aaybbselG_entoCnrncuClolr diStt,a
t      e| (                                               ^)
 co/usr/local/clang/include/absl/base/nullability.hn:s241t:;22
:       | note:                                     ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
l      e|                       ^_
Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2builder_graph.cc1120: | 18 :
 In file included from v../src/s2/s2builder_graph.ho:i31d:
 In file included from C../src/s2/s2builder.ho:p31y:
TIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hA:r43r:
aIn file included from y/usr/local/clang/include/absl/container/hash_container_defaults.hI:m19p:
lIn file included from (/usr/local/clang/include/absl/container/internal/hash_function_defaults.hc:h59a:
r/usr/local/clang/include/absl/strings/cord.h*: 1672a:b41s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul l1672  | disntl)i nceo nvsoti;d
       C| o                             ^r
d:/usr/local/clang/include/absl/base/nullability.h::A241d:v22a:n cnote: eexpanded from macro 'absl_nonnull'(
Ch  a241r | I#tdeerfaitnoer *a basbls_ln_onnonnunlull l_ Niotn,n uslilz
e      _| t                     ^ 
n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSLM_IaNkTeECRhNeAcLk_OApTSTtRrIiBnUgT(E _ C A\P
T      U| R                              ^E
D_BY/usr/local/clang/include/absl/base/nullability.h(:t241h:i22s:) )note: )expanded from macro 'absl_nonnull' 
      241  |  # d e f i n e   a b s l _ n o n n u\l
l       | _                                                   ^N
on/usr/local/clang/include/absl/container/internal/common.hn:u32l:l9
:       | note:                      ^macro 'ABSL_INTERNAL_IF_false' defined here

   32 | #defIn file included from is2/s2builder.ccn:e71 :
AIn file included from B../src/s2/s2builder.hS:L35_:
IIn file included from N../src/s2/id_set_lexicon.hT:E28R:
NIn file included from A../src/s2/base/logging.hL:_21I:
FIn file included from _/usr/local/clang/include/absl/log/check.hf:a37l:
sIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h(:i21f:
_/usr/local/clang/include/absl/log/internal/check_op.hs:a462t:i24s:f iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
, .  .462. | )   _ _ VcAo_nAsRtG Ss_i_g
n      e| d        ^ 
char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2builder_graph.cc :_18N:
oIn file included from n../src/s2/s2builder_graph.hn:u31l:
lIn file included from 
../src/s2/s2builder.h      :| 36                     ^:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2builder.cc525::7130:
:In file included from  ../src/s2/s2builder.h:warning: 35passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/id_set_lexicon.h:28  :
525In file included from  | ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 462 : 24f:a lwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
, /usr/local/clang/include/absl/base/nullability.ht:r241u:e22):; 
      note: | expanded from macro 'absl_nonnull'                             ^

  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 496#:d9e:f inote: nmacro 'ABSL_INTERNAL_X' defined heree
 ab  s496l | _#ndoenfniunlel  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_X(FuIn file included from ns2/s2builder.ccc:,71 :
CIn file included from a../src/s2/s2builder.hl:l35e:
eIn file included from ,../src/s2/id_set_lexicon.h :K28Q:
uIn file included from a../src/s2/base/logging.hl:,21 :
MIn file included from Q/usr/local/clang/include/absl/log/check.hu:a37l:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hK:V21a:
l/usr/local/clang/include/absl/log/internal/check_op.hu:e461,: 1M:V awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e,   .461. | .A)B S L _ L O\G
_      I| N        ^T
ERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n524u:l3l:  _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nnu  l524l | 
        | A                     ^B
SL_INTERNAL_X(insert_or_assign, insert_In file included from os2/s2builder.ccr:_71a:
sIn file included from s../src/s2/s2builder.hi:g35n:
_In file included from i../src/s2/id_set_lexicon.hm:p28l:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :&37,:
 In file included from c/usr/local/clang/include/absl/log/internal/check_impl.ho:n21s:
t/usr/local/clang/include/absl/log/internal/check_op.h :&463,:
1      :|    ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:509:52:   463 | note: Aexpanded from macro 'ABSL_INTERNAL_X'B
SL_  L509O | G _ I N T E R N A L _ADBESFLI_NIEN_TMEARKNEA_LC_HAETCTKR_IOBPU_TSET_RCIANPGT_UERXETDE_RBNY((
t      h| i^s
))/usr/local/clang/include/absl/log/internal/check_op.h,: 449 : 31 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
      449  |      e x t e r n   t e\m
p      l| a                                                   ^t
e /usr/local/clang/include/absl/container/internal/common.hc:o32n:s9t:  cnote: hmacro 'ABSL_INTERNAL_IF_false' defined herea
r*    32a | b#sdle_fnionnen uAlBlS LM_aIkNeTCEhReNcAkLO_pISFt_rfianlgs(e ( i f\_
s      a| t                              ^i
sf/usr/local/clang/include/absl/base/nullability.hi:e241d:,22 :. .note: .expanded from macro 'absl_nonnull')
 _  _241V | A#_dAeRfGiSn_e_ 
a      b| s        ^l
_nonnull _NonIn file included from ns2/s2builder_graph.ccu:l18l:

In file included from       ../src/s2/s2builder_graph.h| :                     ^31
:
In file included from ../src/s2/s2builder.h:36:
In file included from In file included from s2/s2builder.cc../src/s2/mutable_s2shape_index.h::7130:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/container/btree_map.h::3567:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/id_set_lexicon.h::52428::
3In file included from :../src/s2/base/logging.h :21warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h524: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.hA:B464S:L26_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RN  A464L | _ X ( i ncsoenrstt_ ourn_saisgsniegdn ,c hianrs*e ratb_solr__naosnsniuglnl_)i;m
p      l| ,                         ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22&:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | &#,d
e      f| i  ^n
e /usr/local/clang/include/absl/container/internal/btree_container.ha:b511s:l52_:n onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull   511_ | N o n n u l l 
        |                       ^A
BSL_INTIn file included from Es2/s2builder.ccR:N71A:
LIn file included from _../src/s2/s2builder.hA:T35T:
RIn file included from I../src/s2/id_set_lexicon.hB:U28T:
EIn file included from _../src/s2/base/logging.hC:A21P:
TIn file included from U/usr/local/clang/include/absl/log/check.hR:E37D:
_In file included from B/usr/local/clang/include/absl/log/internal/check_impl.hY:(21t:
h/usr/local/clang/include/absl/log/internal/check_op.hi:s464):)26):   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i\n
e       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
_No   n31n | u#ldle
f      i| n                     ^e
 ABSLIn file included from _s2/s2builder.ccI:N71T:
EIn file included from R../src/s2/s2builder.hN:A35L:
_In file included from I../src/s2/id_set_lexicon.hF:_28t:
rIn file included from u../src/s2/base/logging.he:(21i:
fIn file included from _/usr/local/clang/include/absl/log/check.hs:a37t:
iIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hf:i21e:
d/usr/local/clang/include/absl/log/internal/check_op.h,: 463.:.1.:)  warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
_sa  t463i | sAfBiSeLd_
L      O| G        ^_
INTERNAL_DEFINE_MAKE_CHECIn file included from Ks2/s2builder_graph.cc_:O18P:
_In file included from S../src/s2/s2builder_graph.hT:R31I:
NIn file included from G../src/s2/s2builder.h_:E36X:
TIn file included from E../src/s2/mutable_s2shape_index.hR:N30(:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.h::524450::325::  warning: note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  450 |      524  |     xA,B SxL,_ IcNoTnEsRtN AcLh_aXr(*i nasbesrlt__noorn_nauslsli)g
n      ,|                          ^i
ns/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | _#idmepfli,n ec oanbsstl _&n,o ncnounlslt  _&N,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l
        525|  |                      ^ 
                 false, In file included from ts2/s2builder.ccr:u71e:
)In file included from ;../src/s2/s2builder.h
:      35| :
                  ~~~~~~~~~~~~In file included from 
../src/s2/id_set_lexicon.h:28:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/base/logging.h511::2147:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'ABSL_INTERNAL_X'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
511 | /usr/local/clang/include/absl/log/internal/check_op.h : 465 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 ABS  L465_ | IANBTSELR_NLAOLG__AITNTTREIRBNUATLE__DCEAFPITNUER_EMDA_KBEY_(CtHhEiCsK)_)O)P _ S T R I N G _ E X T E R N ( c o n s t   v o i\d
*       | a                                              ^~~~b
sl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   exte/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
r/usr/local/clang/include/absl/container/internal/btree_container.hn: 509t:e47m:p lnote: aexpanded from macro 'ABSL_INTERNAL_X't
e co  n509s | t   c h a r *   a b sAlB_SnLo_nInNuTlElR NMAaLk_eACThTeRcIkBOUpTSEt_rCiAnPgT(U R E D\_
B      Y| (                              ^t
his))/usr/local/clang/include/absl/base/nullability.h,: 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
      241  |  # d e f i n e   a b s\l
_      n| o                                              ^~~~n
null _N/usr/local/clang/include/absl/container/internal/btree_container.ho:n528n:u3l:l 
warning:       passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                     ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  In file included from 511s2/s2builder.cc | : 71 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h :A28B:
SIn file included from L../src/s2/base/logging.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/check.hR:N37A:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hA:T21T:
R/usr/local/clang/include/absl/log/internal/check_op.hI:B465U:T66E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TURE  D465_ | BAYB(StLh_iLsO)G)_)I N T E R N A L _ D E F I N E _ M A K E _ C H E C\K
_      O| P                                                   ^_
ST/usr/local/clang/include/absl/container/internal/common.hR:I31N:G9_:E Xnote: Tmacro 'ABSL_INTERNAL_IF_true' defined hereE
RN(   c31o | n#sdte fvionied *A BaSbLs_lI_NnToEnRnNuAlLl_)I;F
_      t| r                                                                 ^u
e(/usr/local/clang/include/absl/base/nullability.hi:f241_:s22a:t inote: sexpanded from macro 'absl_nonnull'f
ie  d241, |  #.d.e.f)i nief _asbastli_snfoinendu
l      l|          ^_
Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18In file included from :
s2/s2builder.ccIn file included from :../src/s2/s2builder_graph.h71::
31In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2builder.h35::
36In file included from :
../src/s2/id_set_lexicon.hIn file included from :../src/s2/mutable_s2shape_index.h28::
30In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h21::
67In file included from :
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/btree_container.h::37528:
:In file included from 3/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
warning: /usr/local/clang/include/absl/log/internal/check_op.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
465:66: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]528
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(fiinnsee ratb_solr__naosnsniuglnl,  _iNnosnenrutl_lo
r      _| a                     ^s
sign_In file included from is2/s2builder.ccm:p71l:
,In file included from  ../src/s2/s2builder.hc:o35n:
sIn file included from t../src/s2/id_set_lexicon.h :&28,:
 In file included from c../src/s2/base/logging.ho:n21s:
tIn file included from  /usr/local/clang/include/absl/log/check.h&:,37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
21:
  /usr/local/clang/include/absl/log/internal/check_op.h529: | 465 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      465  |  A B S L _ LtOrGu_eI,N TtErRuNeA)L;_
D      E| F                  ~~~~~~~~~~~I
NE_/usr/local/clang/include/absl/container/internal/btree_container.hM:A511K:E47_:C Hnote: Eexpanded from macro 'ABSL_INTERNAL_X'C
K_O  P511_ | S T R I N G _ E X T EARBNS(Lc_oInNsTtE RvNoAiLd_*A TaTbRsIlB_UnToEn_nCuAlPlT)U;R
E      D| _^B
Y(th/usr/local/clang/include/absl/log/internal/check_op.hi:s450):)25):   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |              x ,   x ,   c o n s\t
       c| h                                              ^~~~a
r* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |   In file included from  s2/s2builder.cc : 71 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.hf:a21l:
sIn file included from e/usr/local/clang/include/absl/log/check.h):;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                       ^:
21:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.h::496502::91::  note: warning: macro 'ABSL_INTERNAL_X' defined heretype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

    496502 |  | #AdBeSfLi_nLeO GA_BISNLT_EIRNNTAELR_NCAHLE_CXK(_FOuPn_cI,M PCLa(lClheeec,k _KEQQu,a l=,= )M
Q      u| a^l
, /usr/local/clang/include/absl/log/internal/check_op.hK:V488a:l32u:e ,note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'M
Val  u488e | ,   .i.n.l)i n e   c o\n
s      t| e        ^x
pr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |      /usr/local/clang/include/absl/container/internal/btree_container.h :c531o:n3s:t  warning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]1
& v1  ,531  | c o nAsBtS LT_2I&N TvE2R,N AcLo_nXs(ti ncshearrt*_ oarb_sals_sniognnn,u liln seexrptr_toerx_ta)s s{i g n _ i m\p
l      ,|                                                ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :&22,:  &note: &expanded from macro 'absl_nonnull',
 f  a241l | s#ed,e
f      i| n  ^e
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s509l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   _509N | o n n u l l 
        |                       ^ 
ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, .In file included from .s2/s2builder.cc.:)71 :
_In file included from _../src/s2/s2builder.hV:A35_:
AIn file included from R../src/s2/id_set_lexicon.hG:S28_:
_In file included from 
../src/s2/base/logging.h      :| 21        ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: In file included from warning: s2/s2builder_graph.cc:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2builder_graph.h/usr/local/clang/include/absl/log/internal/check_op.h::31497:
:In file included from 32../src/s2/s2builder.h:: 36:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :49767 | :
 /usr/local/clang/include/absl/container/internal/btree_container.h :i531n:l3i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
onst  e531x | p r  AcBoSnLs_tI NcThEaRrN*A La_bXs(li_nnsuelrlta_bolre_ ansasmieg#n#,I mipnls(e r t _ o r _ a s s i g n _ i m p l ,  \c
o      n| s                               ^t
 &/usr/local/clang/include/absl/base/nullability.h,: 257&:&23,:  fnote: aexpanded from macro 'absl_nullable'l
se  ,257
 |       #| d  ^e
fi/usr/local/clang/include/absl/container/internal/btree_container.hn:e511 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
ull  a511b | l e   _ N u l l a b lAeB
S      L| _                      ^I
NTERNAL_In file included from As2/s2builder.ccT:T71R:
IIn file included from B../src/s2/s2builder.hU:T35E:
_In file included from C../src/s2/id_set_lexicon.hA:P28T:
UIn file included from R../src/s2/base/logging.hE:D21_:
BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h:509/usr/local/clang/include/absl/log/check.h::5237::
 In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'ABSL_INTERNAL_X':
21:
/usr/local/clang/include/absl/log/internal/check_op.h  :509502 | : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   /usr/local/clang/include/absl/log/internal/check_op.h :A498B:S35L:_ Inote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'T
ERNAL  _498A | T T R I B U TiEn_tC AvP1T,U RiEnDt_ BvY2(,t hciosn)s)t,  c h a r *   a b s l _ n o n n u l l   e x p r t\e
x      t| )                                                   ^ 
{ /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
      31  |  # d e\f
i      n| e                                  ^ 
ABS/usr/local/clang/include/absl/base/nullability.hL:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  I241F | _#tdreufei(nief _asbastli_snfoinendu,l l. ._.N)o ninfu_lsla
t      i| s                     ^f
ied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATIn file included from Ts2/s2builder.ccR:I71B:
UIn file included from T../src/s2/s2builder.hE:_35C:
AIn file included from P../src/s2/id_set_lexicon.hT:U28R:
EIn file included from D../src/s2/base/logging.h_:B21Y:
(In file included from t/usr/local/clang/include/absl/log/check.hh:i37s:
)In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h): 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h : 503 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       503  |  A B S L _\L
O      G| _                                              ^~~~I
NTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(        /usr/local/clang/include/absl/container/internal/btree_container.h : 545 : 24 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  \  
545       | |                                 ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | f#adlesfei)n;e
       a| b                       ^s
l_/usr/local/clang/include/absl/container/internal/btree_container.hn:u496l:l9a:b lnote: emacro 'ABSL_INTERNAL_X' defined here 
_N  u496l | l#adbelfei
n      e|                        ^A
BSL_INTERNALIn file included from _s2/s2builder.ccX:(71F:
uIn file included from n../src/s2/s2builder.hc:,35 :
CIn file included from a../src/s2/id_set_lexicon.hl:l28e:
eIn file included from ,../src/s2/base/logging.h :K21Q:
uIn file included from a/usr/local/clang/include/absl/log/check.hl:,37 :
MIn file included from Q/usr/local/clang/include/absl/log/internal/check_impl.hu:a21l:
,/usr/local/clang/include/absl/log/internal/check_op.h :K503V:a1l:u ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
MV/usr/local/clang/include/absl/log/internal/check_op.ha:l489u:e47,:  .note: .expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'.
)      489  | \ 
        |          ^ 
 const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2/s2builder.cc509: | 71 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28A:
BIn file included from S../src/s2/base/logging.hL:_21I:
NIn file included from T/usr/local/clang/include/absl/log/check.hE:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:A21T:
T/usr/local/clang/include/absl/log/internal/check_op.hR:I503B:U1T:E _warning: Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
PT/usr/local/clang/include/absl/log/internal/check_op.hU:R497E:D32_:B Ynote: (expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
his)  )497, |      i n l i n e   c o n s t e x p r   c o n s t\ 
c      h| a                                                   ^r
* /usr/local/clang/include/absl/container/internal/common.ha:b31s:l9_:n unote: lmacro 'ABSL_INTERNAL_IF_true' defined herel
abl   e31  | n#admeef#i#nIem pAlB(S L _ I N T E R N A L _ I F _ t r u e (\i
f      _| s                               ^a
ti/usr/local/clang/include/absl/base/nullability.hs:f257i:e23d:,  note: .expanded from macro 'absl_nullable'.
.)   257i | f#_dseaftiinsef iaebds
l      _| n        ^u
llable _Nullable
      | In file included from                       ^s2/s2builder_graph.cc
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNIn file included from As2/s2builder.ccL:_71I:
FIn file included from _../src/s2/s2builder.ht:r35u:
eIn file included from (../src/s2/id_set_lexicon.hi:f28_:
sIn file included from a../src/s2/base/logging.ht:i21s:
fIn file included from i/usr/local/clang/include/absl/log/check.he:d37,:
 In file included from ./usr/local/clang/include/absl/log/internal/check_impl.h.:.21):
 i/usr/local/clang/include/absl/log/internal/check_op.hf:_504s:a1t:i swarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ed
        | 504        ^ | 
ABSL_LOG_INTERNIn file included from As2/s2builder_graph.ccL:_18C:
HIn file included from E../src/s2/s2builder_graph.hC:K31_:
OIn file included from P../src/s2/s2builder.h_:I36M:
PIn file included from L../src/s2/mutable_s2shape_index.h(:C30h:
eckIn file included from _/usr/local/clang/include/absl/container/btree_map.hL:E67,:
 /usr/local/clang/include/absl/container/internal/btree_container.h<:=546):
3      :|  ^warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/log/internal/check_op.h:488:32  :546  | note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
ABS  L488_ | I N TiEnRlNiAnLe_ Xc(oinnssteerxtp_ro rc_oansssti gcnh,a ri*n saebrstl__onru_lalsasbilgen _niammpel#,# I&m&p,l (c o n s t   & ,   t r u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 \  
547       | |                                 ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | t#rdueef)i;n
e       | a                  ~~~~~b
sl_/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l47a:b lnote: eexpanded from macro 'ABSL_INTERNAL_X' 
_Nu  l511l | a b l e 
        |                        ^ 
  ABSL_INTERNAL_In file included from As2/s2builder.ccT:T71R:
IIn file included from B../src/s2/s2builder.hU:T35E:
_In file included from C../src/s2/id_set_lexicon.hA:P28T:
UIn file included from R../src/s2/base/logging.hE:D21_:
BIn file included from Y/usr/local/clang/include/absl/log/check.h(:t37h:
iIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.h):)21):
 /usr/local/clang/include/absl/log/internal/check_op.h : 504 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 489 : 47 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
   \  
489       | |                                                ^~~~ 
    const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Non/usr/local/clang/include/absl/container/internal/btree_container.hn:u550l:l24
:       | warning:                      ^
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_null/usr/local/clang/include/absl/container/internal/btree_container.ha:b549l:e3 :_ Nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
labl  e549
 |        |                        ^A
BSL_INTERNALIn file included from _s2/s2builder.ccX:(71i:
nIn file included from s../src/s2/s2builder.he:r35t:
_In file included from o../src/s2/id_set_lexicon.hr:_28a:
sIn file included from s../src/s2/base/logging.hi:g21n:
,In file included from  /usr/local/clang/include/absl/log/check.hi:n37s:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.ht:_21o:
r/usr/local/clang/include/absl/log/internal/check_op.h_:a504s:s1i:g nwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
mp/usr/local/clang/include/absl/log/internal/check_op.hl:,498 :&35&:,  note: &expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'&
, fa  l498s | e , 
        |    ^ 
in/usr/local/clang/include/absl/container/internal/btree_container.ht: 509v:152,:  inote: nexpanded from macro 'ABSL_INTERNAL_X't
 v2  ,509  | c o n s t   c h a r *A BaSbLs_lI_NnToEnRnNuAlLl_ AeTxTpRrItBeUxTtE)_ C{A P T U R E D _ B Y ( t h i s ) ) ,\ 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f\i
n      e|                                                     ^a
bs/usr/local/clang/include/absl/container/internal/common.hl:_32n:o9n:n unote: lmacro 'ABSL_INTERNAL_IF_false' defined herel
 _N   o32n | n#udlelf
i      n| e                     ^ 
ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL/usr/local/clang/include/absl/container/internal/btree_container.h(:C552h:e79c:k _warning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
, <)  
552       | |  ^ 
ABS/usr/local/clang/include/absl/log/internal/check_op.hL:_488I:N32T:E Rnote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'A
L_X  (488i | n s eirntl_ionre_ acsosnisgtne,x pirn sceornts_to rc_haasrs*i ganb_silm_pnlu,l l&a&b,l e& &n,a mter#u#eI,m pfla(l s e ) ; 
        |                                                                                ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here\

      |                                ^  
496 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: Aexpanded from macro 'absl_nullable'B
SL  _257I | N#TdEeRfNiAnLe_ Xa(bFsuln_cn,u lClaalblleee ,_ NKuQlulaalb,l eM
Q      u| a                      ^l
, KValue, MVaIn file included from ls2/s2builder.ccu:e71,:
 In file included from .../src/s2/s2builder.h.:.35):
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
\In file included from 
../src/s2/base/logging.h      :| 21        ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l552_:n3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l _N  o552n | n u lAlB
S      L| _                     ^I
NTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CIn file included from As2/s2builder.ccP:T71U:
RIn file included from E../src/s2/s2builder.hD:_35B:
YIn file included from (../src/s2/id_set_lexicon.ht:h28i:
sIn file included from )../src/s2/base/logging.h):,21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 505 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h :\497
:      32| :                                                   ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/container/internal/common.h
:31:9:   497note:  | macro 'ABSL_INTERNAL_IF_true' defined here 
 in   l31i | n#ed ecfoinnset eAxBpSrL _cIoNnTsEtR NcAhLa_rI*F _atbrsule_(niufl_lsaabtlies fniaemde,# #.I.m.p)l (i f _ s a t i s f i e d 
        |          ^ 
   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2builder_graph.cc#:d18e:
fIn file included from i../src/s2/s2builder_graph.hn:e31 :
aIn file included from b../src/s2/s2builder.hs:l36_:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30a:
bIn file included from l/usr/local/clang/include/absl/container/btree_map.he: 67_:
N/usr/local/clang/include/absl/container/internal/btree_container.hu:l552l:a3b:l ewarning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                       ^
  552 |   ABIn file included from Ss2/s2builder.ccL:_71I:
NIn file included from T../src/s2/s2builder.hE:R35N:
AIn file included from L../src/s2/id_set_lexicon.h_:X28(:
iIn file included from n../src/s2/base/logging.hs:e21r:
tIn file included from _/usr/local/clang/include/absl/log/check.ho:r37_:
aIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hs:i21g:
n/usr/local/clang/include/absl/log/internal/check_op.h,: 505i:n1s:e rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
or/usr/local/clang/include/absl/log/internal/check_op.h_:a498s:s35i:g nnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
mpl,   498& | & ,   & & ,  itnrtu ev,1 ,f ailnste )v;2
,       | c  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
nst/usr/local/clang/include/absl/container/internal/btree_container.h :c509h:a47r:*  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n509o | n n u l l   e x p r tAeBxStL)_ I{N T E R N A L _ A T T R I B U T E _\C
A      P| T                                  ^U
RE/usr/local/clang/include/absl/base/nullability.hD:_241B:Y22(:t hnote: iexpanded from macro 'absl_nonnull's
))  ,241  |  # d e f i n e   a b s l _ n o n n u l l   _ N\o
n      n| u                                              ^~~~l
l
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))In file included from )s2/s2builder.cc : 71 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from \/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                              ^~~~
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1,/usr/local/clang/include/absl/container/internal/btree_container.h :c555o:n3s:t  warning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]2
& v2  ,555  | c o nAsBtS Lc_hIaNrT*E RaNbAsLl__Xn(oinnnsuelrlt _eoxrp_ratsesxitg)n ,{  i n s e r\t
_      o| r                                              ^_
as/usr/local/clang/include/absl/base/nullability.hs:i241g:n22_:h inote: nexpanded from macro 'absl_nonnull't
_i  m241p | l#,d ecfoinnset  a&b,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l509l: 52_:N onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull  
509       | |                       ^ 
        ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                      In file included from  s2/s2builder.cc :\71
:
      In file included from | ../src/s2/s2builder.h                                                   ^:
35:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/id_set_lexicon.h::3128::
9In file included from :../src/s2/base/logging.h :21note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
/usr/local/clang/include/absl/log/check.h:37:
   In file included from 31/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
ef/usr/local/clang/include/absl/log/internal/check_op.hi:n506e: 1A:B Swarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
IN/usr/local/clang/include/absl/log/internal/check_op.hT:E497R:N32A:L _note: Iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'F
_tru  e497( | i f _isnaltiinsef iceodn,s t.e.x.p)r  icfo_nssatt icshfaire*d 
a      b| s        ^l
_nullable name##ImplIn file included from (s2/s2builder_graph.cc : 18 :
 In file included from  ../src/s2/s2builder_graph.h : 31 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from \/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                               ^/usr/local/clang/include/absl/container/internal/btree_container.h
:558:/usr/local/clang/include/absl/base/nullability.h3::257 :23warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 note: expanded from macro 'absl_nullable'
  558   | 257  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_uXl(lianbsleer t__Nourl_laasbslieg
n      ,|                        ^i
nsert_or_asIn file included from ss2/s2builder.cci:g71n:
_In file included from h../src/s2/s2builder.hi:n35t:
_In file included from i../src/s2/id_set_lexicon.hm:p28l:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :&37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~21
:
/usr/local/clang/include/absl/log/internal/check_op.h:  506559: | 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
  co  n498s | t   & ,   f ailnste ,v 1t,r uien,t
       v| 2                  ~~~~~~~~~~~~~~~~~~~~~,
 co  n560s | t   c h a r *   a b s l _ n o n n u lclo nesxtp_ritteexrta)t o{r ( h i n t )   A B S L _ I N T E R\N
A      L| _                                  ^C
OM/usr/local/clang/include/absl/base/nullability.hM:A241):;22
:       | note:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'

  241/usr/local/clang/include/absl/container/internal/btree_container.h | :#511d:e47f:i nnote: eexpanded from macro 'ABSL_INTERNAL_X' 
abs  l511_ | n o n n u l l   _ N oAnBnSuLl_lI
N      T| E                     ^R
NAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: In file included from note: s2/s2builder.ccmacro 'ABSL_INTERNAL_IF_true' defined here:
71:
In file included from ../src/s2/s2builder.h   :3135 | :
#In file included from d../src/s2/id_set_lexicon.he:f28i:
nIn file included from e../src/s2/base/logging.h :A21B:
SIn file included from L/usr/local/clang/include/absl/log/check.h_:I37N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.hR:N21A:
L_/usr/local/clang/include/absl/log/internal/check_op.hI:F507_:t1r:u ewarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
f_sa  t507i | sAfBiSeLd_,L O.G._.I)N TiEfR_NsAaLt_iCsHfEiCeKd_
O      P| _        ^I
MPL(Check_GT, >)
      | ^In file included from 
s2/s2builder_graph.cc:18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 488../src/s2/s2builder_graph.h::3231::
 In file included from ../src/s2/s2builder.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'36
:
In file included from ../src/s2/mutable_s2shape_index.h:30  :
488In file included from  | /usr/local/clang/include/absl/container/btree_map.h : 67i:
n/usr/local/clang/include/absl/container/internal/btree_container.hl:i564n:e3 :c owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
texpr   564c | o n sAtB ScLh_aIrN*T EaRbNsAlL__nXu(lilnasbelret _noarm_ea#s#sIimgpnl,(  i n s e r t _ o r _ a s s i g n _ h i\n
t      _| i                               ^m
pl/usr/local/clang/include/absl/base/nullability.h,: 257c:o23n:s tnote:  expanded from macro 'absl_nullable'&
,
        257|  |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
de  f565i | n e   a b s l _ n u l l a b l e   _ Ncuolnlsatb l&e,
       t| r                      ^u
e, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
In file included from s2/s2builder.cc  :56671 | :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:_21i:
t/usr/local/clang/include/absl/log/internal/check_op.he:r507a:t1o:r (warning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nt/usr/local/clang/include/absl/log/internal/check_op.h): 489A:B47S:L _note: Iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
TERN  A489L | _ C O M M A )c;o
n      s| t                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
T1&/usr/local/clang/include/absl/container/internal/btree_container.h :v5091:,47 :c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t T  2509& |   v 2 ,   c o n s t  AcBhSaLr_*I NaTbEsRlN_AnLo_nAnTuTlRlI BeUxTpEr_tCeAxPtT)U R{E D _ B Y (\t
h      i| s                                              ^)
),/usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s\l
_      n| o                                              ^~~~n
null _N/usr/local/clang/include/absl/container/internal/btree_container.ho:n564n:u3l:l 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSLIn file included from _s2/s2builder.ccI:N71T:
EIn file included from R../src/s2/s2builder.hN:A35L:
_In file included from I../src/s2/id_set_lexicon.hF:_28t:
rIn file included from u../src/s2/base/logging.he:(21i:
fIn file included from _/usr/local/clang/include/absl/log/check.hs:a37t:
iIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hf:i21e:
d/usr/local/clang/include/absl/log/internal/check_op.h,: 507.:.1.:)  warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
_sati/usr/local/clang/include/absl/log/internal/check_op.hs:f497i:e32d:
       | note:         ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  497 |   inline cIn file included from os2/s2builder_graph.ccn:s18t:
eIn file included from x../src/s2/s2builder_graph.hp:r31 :
cIn file included from o../src/s2/s2builder.hn:s36t:
 In file included from c../src/s2/mutable_s2shape_index.hh:a30r:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n564u:l3l:a bwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
 name  #564# | I m pAlB(S L _ I N T E R N A L _ X ( i n s e r t\_
o      r| _                               ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g257n:,23 :i nnote: sexpanded from macro 'absl_nullable'e
rt  _257o | r#_daesfsiingen _ahbisnlt__niumlplla,b lceo n_sNtu l&l,a
b      l| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |                       ^  
565 |        In file included from  s2/s2builder.cc : 71 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.hc:o28n:
sIn file included from t../src/s2/base/logging.h :&21,:
 In file included from t/usr/local/clang/include/absl/log/check.hr:u37e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ht:r21u:
e/usr/local/clang/include/absl/log/internal/check_op.h,:
507      :| 1                  ~~~~~~~~~~~~~~~~~~~~:
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]566
 |  /usr/local/clang/include/absl/log/internal/check_op.h : 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      498  |       c o n sitn_ti tve1r,a tionrt( hvi2n,t )c oAnBsStL _cIhNaTrE*R NaAbLs_lC_OnMoMnAn)u;l
l       | e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~x
prt/usr/local/clang/include/absl/container/internal/btree_container.he:x511t:)47 :{  note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                   \ 
A      B| S                                  ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'A
TT  R241I | B#UdTeEf_iCnAeP TaUbRsElD__nBoYn(ntuhlils )_)N)o n n u l l 
        |                       ^ 
              \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thIn file included from is2/s2builder.ccs:)71):
)In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
\
/usr/local/clang/include/absl/log/internal/check_op.h      :| 511                                                   ^:
13: /usr/local/clang/include/absl/container/internal/common.h:warning: 31:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]9
: note: macro 'ABSL_INTERNAL_IF_true' defined here  
511 | c   o31n | s#td ecfhianre*  AaBbSsLl__InNuTlElRaNbAlLe_ ICFh_etcrkuset(ricfm_pstartuiesIfmipeld(,
       .| .            ^.
) if/usr/local/clang/include/absl/base/nullability.h_:s257a:t23i:s fnote: iexpanded from macro 'absl_nullable'e
d
        | 257        ^ | 
#define absl_nullableIn file included from  s2/s2builder_graph.cc_:N18u:
lIn file included from l../src/s2/s2builder_graph.ha:b31l:
eIn file included from 
../src/s2/s2builder.h      :| 36                      ^:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67In file included from :
s2/s2builder.cc/usr/local/clang/include/absl/container/internal/btree_container.h::71570:
:In file included from 3../src/s2/s2builder.h:: 35:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]../src/s2/id_set_lexicon.h
:28:
In file included from ../src/s2/base/logging.h:21:
  In file included from 570/usr/local/clang/include/absl/log/check.h | : 37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
I/usr/local/clang/include/absl/log/internal/check_op.hN:T512E:R17N:A Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]X
(in  s512e | r t _ o rc_oansssti gcnh,a ri*n saebrstl__onru_lalsasbilgen _sh1i,n tc_oinmsptl ,c hcaorn*s ta b&s,l _&n&u,l
l      a| b  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
e s  2571, | 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257f | a#ldseef,i nter uaeb,s lc_onnusltl_aibtleer a_tNourl(lhaibnlte)
       A| B                      ^S
L_INTERNAL_In file included from Cs2/s2builder.ccO:M71M:
AIn file included from )../src/s2/s2builder.h;:
35      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/id_set_lexicon.h
:28:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/internal/btree_container.h::21511:
:In file included from 47/usr/local/clang/include/absl/log/check.h:: 37:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :511512 | : 47 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      512A | B S L _ IcNoTnEsRtN AcLh_aArT*T RaIbBsUlT_En_uClAlPaTbUlReE Ds_1B,Y (ctohnisst) )c)h a r *   a b s l _ n u l l a b l e   s 2 , 
        | \                                              ^

      | /usr/local/clang/include/absl/base/nullability.h                                              ^~~~:
257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseIm/usr/local/clang/include/absl/container/internal/btree_container.hp:l(
      | 572            ^:
3: /usr/local/clang/include/absl/base/nullability.h:warning: 257passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
23: note:   expanded from macro 'absl_nullable'572
 |     257A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(uilnlsaebrlte_ o_rN_ualslsaibglne,
       i| n                      ^s
ert_In file included from os2/s2builder.ccr:_71a:
sIn file included from s../src/s2/s2builder.hi:g35n:
_In file included from h../src/s2/id_set_lexicon.hi:n28t:
_In file included from i../src/s2/base/logging.hm:p21l:
,In file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :&21,:
 /usr/local/clang/include/absl/log/internal/check_op.h&:&515,:
17      :|    ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:509:52  :515  | note:  expanded from macro 'ABSL_INTERNAL_X' 
  c  o509n | s t   c h a r *   a bAsBlS_Ln_uIlNlTaEbRlNeA Ls_1A,T TcRoInBsUtT cEh_aCrA*P TaUbRsElD__nBuYl(ltahbilse) )s,2 , 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e\f
i      n| e                                                   ^ 
abs/usr/local/clang/include/absl/container/internal/common.hl:_31n:u9l:l anote: bmacro 'ABSL_INTERNAL_IF_true' defined herel
e _   N31u | l#ldaebflien
e       | A                      ^B
SL_INTERIn file included from Ns2/s2builder.ccA:L71_:
IIn file included from F../src/s2/s2builder.h_:t35r:
uIn file included from e../src/s2/id_set_lexicon.h(:i28f:
_In file included from s../src/s2/base/logging.ha:t21i:
sIn file included from f/usr/local/clang/include/absl/log/check.hi:e37d:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h.:.21.:
)/usr/local/clang/include/absl/log/internal/check_op.h :i515f:_47s:a twarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
fie  d515
 |        |          ^ 
 const char* absl_nulIn file included from ls2/s2builder_graph.cca:b18l:
eIn file included from  ../src/s2/s2builder_graph.hs:131,:
 In file included from c../src/s2/s2builder.ho:n36s:
tIn file included from  ../src/s2/mutable_s2shape_index.hc:h30a:
rIn file included from */usr/local/clang/include/absl/container/btree_map.h :a67b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_572n:u3l:l awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
e s2,  
572       | |                                                ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L257_:I23N:T Enote: Rexpanded from macro 'absl_nullable'N
AL  _257X | (#idnesfeirnte_ oarb_sals_sniuglnl,a bilnes e_rNtu_lolra_balses
i      g| n                      ^_
hint_In file included from is2/s2builder.ccm:p71l:
,In file included from  ../src/s2/s2builder.hc:o35n:
sIn file included from t../src/s2/id_set_lexicon.h :&28,:
 In file included from &../src/s2/base/logging.h&:,21
:
      In file included from | /usr/local/clang/include/absl/log/check.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :57321 | :
 /usr/local/clang/include/absl/log/internal/check_op.h : 516 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     516  |         tcrounes,t  fcahlasre*,  acbosnls_tn_ointneurlalt oerx(phritnetx)t )A;B
S      L| _                ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Cnote: Oexpanded from macro 'absl_nonnull'M
MA  )241; | 
#      d| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
ine/usr/local/clang/include/absl/container/internal/btree_container.h :a509b:s47l:_ nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l509  | _ N o n n u l l 
        | A                     ^B
SL_INTERNAL_AIn file included from Ts2/s2builder.ccT:R71I:
BIn file included from U../src/s2/s2builder.hT:E35_:
CIn file included from A../src/s2/id_set_lexicon.hP:T28U:
RIn file included from E../src/s2/base/logging.hD:_21B:
YIn file included from (/usr/local/clang/include/absl/log/check.ht:h37i:
sIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h):,21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 517 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      517  |  c o n s t   c h\a
r      *|                                                ^~~~a
bsl_null/usr/local/clang/include/absl/container/internal/btree_container.ha:b572l:e3 :C hwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
k/usr/local/clang/include/absl/container/internal/btree_container.hs:t511r:c52a:s enote: cexpanded from macro 'ABSL_INTERNAL_X'm
ptr  u511e | I m p l ( 
        |              ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S257L:_23I:N Tnote: Eexpanded from macro 'absl_nullable'R
NA  L257_ | A#TdTeRfIiBnUeT Ea_bCsAlP_TnUuRlElDa_bBlYe( t_hNiusl)l)a)b l e 
        |                        ^ 
    In file included from  s2/s2builder.cc : 71 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28\:

In file included from       ../src/s2/base/logging.h| :                                                   ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/common.h::3732:
:In file included from 9/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: /usr/local/clang/include/absl/log/internal/check_op.hmacro 'ABSL_INTERNAL_IF_false' defined here:
518:17:    32 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n518e |   A B S Lc_oInNsTtE RcNhAaLr_*I Fa_bfsall_sneu(lilfa_bslaet iss1f,i ecdo,n s.t. .c)h a_r_*V Aa_bAsRlG_Sn_u_l
l      a| b        ^l
e s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const chaIn file included from rs2/s2builder_graph.cc*: 18a:
bIn file included from s../src/s2/s2builder_graph.hl:_31n:
oIn file included from n../src/s2/s2builder.hn:u36l:
lIn file included from  ../src/s2/mutable_s2shape_index.he:x30p:
rIn file included from t/usr/local/clang/include/absl/container/btree_map.he:x67t:
)/usr/local/clang/include/absl/container/internal/btree_container.h;:
574      :| 3                ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
22: note:   expanded from macro 'absl_nonnull'574
 |     241A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(oinnnsuelrlt __oNro_nansuslilg
n      ,|                       ^i
nsert_or_asIn file included from ss2/s2builder.cci:g71n:
_In file included from h../src/s2/s2builder.hi:n35t:
_In file included from i../src/s2/id_set_lexicon.hm:p28l:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :&37,:
 In file included from &/usr/local/clang/include/absl/log/internal/check_impl.h&:,21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h  ^:520
:13: /usr/local/clang/include/absl/container/internal/btree_container.h:warning: 509type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
52:   note: 520expanded from macro 'ABSL_INTERNAL_X' | 
con  s509t |   c h a r *   a b s lA_BnSuLl_lIaNbTlEeR NCAhLe_cAkTsTtRrIcBaUsTeEc_mCpAfPaTlUsReEIDm_pBlY((
t      h| i            ^s
))/usr/local/clang/include/absl/base/nullability.h,: 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l\_
n      u| l                                                   ^l
ab/usr/local/clang/include/absl/container/internal/common.hl:e31 :_9N:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined herea
ble   
31       | | #                      ^d
efineIn file included from  s2/s2builder.ccA:B71S:
LIn file included from _../src/s2/s2builder.hI:N35T:
EIn file included from R../src/s2/id_set_lexicon.hN:A28L:
_In file included from I../src/s2/base/logging.hF:_21t:
rIn file included from u/usr/local/clang/include/absl/log/check.he:(37i:
fIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hs:a21t:
i/usr/local/clang/include/absl/log/internal/check_op.hs:f521i:e17d:,  warning: .type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension].
.)   i521f | _ s a t icsofnisetd 
c      h| a        ^r
* absl_nullable s1, In file included from cs2/s2builder_graph.cco:n18s:
tIn file included from  ../src/s2/s2builder_graph.hc:h31a:
rIn file included from *../src/s2/s2builder.h :a36b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.ha:b67l:
e/usr/local/clang/include/absl/container/internal/btree_container.h :s5742:,3
:       | warning:                 ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/base/nullability.h:257:23:   574 | note:  expanded from macro 'absl_nullable' 
AB  S257L | _#IdNeTfEiRnNeA La_bXs(li_nnsuelrlta_bolre_ a_sNsuilglna,b lien
s      e| r                      ^t
_or_asIn file included from ss2/s2builder.cci:g71n:
_In file included from h../src/s2/s2builder.hi:n35t:
_In file included from i../src/s2/id_set_lexicon.hm:p28l:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :&37,:
 In file included from &/usr/local/clang/include/absl/log/internal/check_impl.h&:,21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~521
:47:   warning: 575type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
      521  |          c o n s t   c h atrr*u ea,b stlr_uneu,l lcaobnlset _si1t,e rcaotnosrt( hcihnatr)*  AaBbSsLl__InNuTlElRaNbAlLe_ CsO2M,M
A      )| ;                                              ^

      | /usr/local/clang/include/absl/base/nullability.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
257:23:/usr/local/clang/include/absl/container/internal/btree_container.h :509note: :expanded from macro 'absl_nullable'47
:   note: 257expanded from macro 'ABSL_INTERNAL_X' | 
#de  f509i | n e   a b s l _ n u lAlBaSbLl_eI N_TNEuRlNlAaLb_lAeT
T      R| I                      ^B
UTE_CIn file included from As2/s2builder.ccP:T71U:
RIn file included from E../src/s2/s2builder.hD:_35B:
YIn file included from (../src/s2/id_set_lexicon.ht:h28i:
sIn file included from )../src/s2/base/logging.h):,21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 522 : 17 :  warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      522\ | 
        |                                                ^~~~ 
const cha/usr/local/clang/include/absl/container/internal/btree_container.hr:*574 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
o/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:  enote: xexpanded from macro 'ABSL_INTERNAL_X'p
rte  x511t | ) ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eAfTiTnReI BaUbTsEl__CnAoPnTnUuRlElD __BNYo(ntnhuilsl)
)      )|                       ^ 
                      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAIn file included from Ls2/s2builder.cc_:A71T:
TIn file included from R../src/s2/s2builder.hI:B35U:
TIn file included from E../src/s2/id_set_lexicon.h_:C28A:
PIn file included from T../src/s2/base/logging.hU:R22E:
DIn file included from _/usr/local/clang/include/absl/log/log.hB:Y209(:
tIn file included from h/usr/local/clang/include/absl/log/internal/log_impl.hi:s20):
)In file included from ,/usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
  /usr/local/clang/include/absl/log/internal/vlog_config.h : 49 : 37 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        49  |  i n t  \R
e      g| i                                              ^~~~s
terAndI/usr/local/clang/include/absl/container/internal/btree_container.hn:i581t:i3a:l iwarning: zpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
(/usr/local/clang/include/absl/container/internal/btree_container.hV:L511o:g52S:i tnote: eexpanded from macro 'ABSL_INTERNAL_X'*
 ab  s511l | _ n o n n u l l   v )A;B
S      L| _                                    ^I
NTE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:A Tnote: Texpanded from macro 'absl_nonnull'R
IB  U241T | E#_dCeAfPiTnUeR EaDb_sBlY_(ntohninsu)l)l)  _ N o n n u l l 
        |                       ^ 
           \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define In file included from As2/s2builder.ccB:S71L:
_In file included from I../src/s2/s2builder.hN:T35E:
RIn file included from N../src/s2/id_set_lexicon.hA:L28_:
IIn file included from F../src/s2/base/logging.h_:f22a:
lIn file included from s/usr/local/clang/include/absl/log/log.he:(209i:
fIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hs:a20t:
iIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.hf:i63e:
d/usr/local/clang/include/absl/log/internal/vlog_config.h,: 63.:.43.:)  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
VA_   A63R | G S _e_x
p      l| i        ^c
it constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internalIn file included from :s2/s2builder_graph.cc::R18e:
gIn file included from i../src/s2/s2builder_graph.hs:t31e:
rIn file included from A../src/s2/s2builder.hn:d36I:
nIn file included from i../src/s2/mutable_s2shape_index.ht:i30a:
lIn file included from i/usr/local/clang/include/absl/container/btree_map.hz:e67(:
V/usr/local/clang/include/absl/container/internal/btree_container.hL:o583g:S3i:t ewarning: *passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
absl  _583n | o n nAuBlSlL _vI)N;T
E      R| N                                                           ^A
L_/usr/local/clang/include/absl/base/nullability.hX:(241i:n22s:e rnote: texpanded from macro 'absl_nonnull'_
or  _241a | s#sdiegfni,n ei nasbesrlt__noorn_nauslsli g_nN_ohninnutl_li
m      p| l                     ^,
 &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IFIn file included from _s2/s2builder.cct:r71u:
eIn file included from (../src/s2/s2builder.hi:f35_:
sIn file included from a../src/s2/id_set_lexicon.ht:i28s:
fIn file included from i../src/s2/base/logging.he:d22,:
 In file included from ./usr/local/clang/include/absl/log/log.h.:.209):
 In file included from i/usr/local/clang/include/absl/log/internal/log_impl.hf:_20s:
aIn file included from t/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:s63f:
i/usr/local/clang/include/absl/log/internal/vlog_config.he:d119
:      15| :        ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const chIn file included from as2/s2builder_graph.ccr:*18 :
aIn file included from b../src/s2/s2builder_graph.hs:l31_:
nIn file included from o../src/s2/s2builder.hn:n36u:
lIn file included from l../src/s2/mutable_s2shape_index.h :c30o:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.ht: 67f:
i/usr/local/clang/include/absl/container/internal/btree_container.hl:e583_:;3
:       | warning:               ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/base/nullability.h:241:22  :583  | note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bXs(li_nnsoenrntu_lolr __aNsosningunl,l 
i      n| s                     ^e
rt_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2builder_graph.cc
:18:
In file included from ../src/s2/s2builder_graph.h:31   :
66In file included from  | ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 33 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 52 : 24 :  iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_typ   e52* |  satbds:l:_antoonmniucl<lu ionutt3)2;_
t      >| *                                        ^ 
absl_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: Cexpanded from macro 'absl_nonnull'o
nt  r241o | l#Wdoerfdi(n
e       | a                       ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builder_graph.ccs2/s2builder.cc::1871:
:
In file included from In file included from ../src/s2/s2builder_graph.h../src/s2/s2builder.h::3136:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/mutable_s2shape_index.h::3630:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/btree_map.h::3366:
:
In file included from In file included from ../src/s2/base/commandlineflags.h/usr/local/clang/include/absl/container/internal/btree.h::2170:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/container/internal/layout.h::42198:
:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/strings/str_cat.h::30116:
:
/usr/local/clang/include/absl/base/call_once.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h53::2322:
: /usr/local/clang/include/absl/strings/numbers.h:warning: 77type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
61:    warning: 53 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   a   b77s | l[:[:noondcies_cfalradg]*]  abbosoll_ nSoinmnpullelA tfolfa(ga)b;s
l      :| :                     ^s
tr/usr/local/clang/include/absl/base/nullability.hi:n241g:_22v:i enote: wexpanded from macro 'absl_nonnull' 
st  r241, |  #fdleofaitn*e  aabbssll__nnoonnnnuullll  o_uNto)n;n
u      l| l                                                            ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88In file included from  | s2/s2builder_graph.cc[:[18n:
oIn file included from d../src/s2/s2builder_graph.hi:s31c:
aIn file included from r../src/s2/s2builder.hd:]36]:
 In file included from b../src/s2/mutable_s2shape_index.ho:o33l:
 In file included from S../src/s2/base/commandlineflags.hi:m21p:
lIn file included from e/usr/local/clang/include/absl/flags/flag.hA:t42o:
dIn file included from (/usr/local/clang/include/absl/flags/internal/flag.ha:b30s:
l/usr/local/clang/include/absl/base/call_once.h:::96s:t33r:i nwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
view    96s | t r ,f rdioeunbdl es*t da:b:salt_onmoincn<uuliln to3u2t_)t;>
*       | a                                                             ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
ba  s241e | _#idnetfeirnnea la:b:sClo_nntornonluWlolr d_(N
o      n| n                                ^u
ll
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2builder.ccl:l71 :
_In file included from N../src/s2/s2builder.ho:n36n:
uIn file included from l../src/s2/mutable_s2shape_index.hl:
30      :
| In file included from                      ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:In file included from 116s2/s2builder_graph.cc:
:In file included from 18/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/s2builder_graph.h:
:31/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 98../src/s2/s2builder.h::6036::
 In file included from ../src/s2/mutable_s2shape_index.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]33
:
In file included from ../src/s2/base/commandlineflags.h:21   :
98In file included from  | /usr/local/clang/include/absl/flags/flag.h[:[42n:
oIn file included from d/usr/local/clang/include/absl/flags/internal/flag.hi:s30c:
a/usr/local/clang/include/absl/base/call_once.hr:d97]:]18 :b owarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 Si   m97p | l e A t o b (oanbcsel_:f:lsatgr*i nagb_svli_enwo nsnturl,l  bfoloalg*) ;a
b      s| l                 ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  onote: uexpanded from macro 'absl_nonnull't
);  
241       | | #                                                           ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                           In file included from  s2/s2builder_graph.cc : 18 :
 In file included from  ../src/s2/s2builder_graph.h :i31n:
tIn file included from _../src/s2/s2builder.ht:y36p:
eIn file included from *../src/s2/mutable_s2shape_index.h :a33b:
sIn file included from l../src/s2/base/commandlineflags.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/flags/flag.hu:l42l:
 In file included from o/usr/local/clang/include/absl/flags/internal/flag.hu:t30):
;/usr/local/clang/include/absl/base/call_once.h
:      111| :                                           ^40
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22: note:   expanded from macro 'absl_nonnull'111
 | v  o241i | d# dLeofwiLneev ealbCsall_lnOonncneu(lalb s_lN:o:nonnuclel_
f      l| a                     ^g
* absl_nonnull flag, Callable&& fIn file included from ns2/s2builder.cc,:
71      :
| In file included from                                        ^../src/s2/s2builder.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/mutable_s2shape_index.h241::3022:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:note: 66expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/btree.h:  70241:
 | In file included from #/usr/local/clang/include/absl/container/internal/layout.h:d198e:
fIn file included from i/usr/local/clang/include/absl/strings/str_cat.hn:e116 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:l23_:
n/usr/local/clang/include/absl/strings/numbers.ho:n116n:u55l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onnu  l116l | 
        |                       ^ 
                                    absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<In file included from us2/s2builder.cci:n71t:
3In file included from 2../src/s2/s2builder.h_:t36>:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l70 :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:t198r:
oIn file included from l/usr/local/clang/include/absl/strings/str_cat.h,:
116      :
| In file included from                                         ^/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/numbers.h::241152::2237::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #152d | evfoiinde  PaubtsTlw_onDoingniutlsl( u_iNnotn3n2u_ltl 
i      ,|                       ^c
har* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198In file included from :
s2/s2builder_graph.ccIn file included from :/usr/local/clang/include/absl/strings/str_cat.h18::
116In file included from :
../src/s2/s2builder_graph.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h31::
23In file included from :
../src/s2/s2builder.h:/usr/local/clang/include/absl/strings/numbers.h36::
160In file included from :../src/s2/mutable_s2shape_index.h57::33 :
In file included from warning: ../src/s2/base/commandlineflags.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/flags/flag.h:  42160:
 | In file included from b/usr/local/clang/include/absl/flags/internal/flag.ho:o30l:
 /usr/local/clang/include/absl/base/call_once.hs:a194f:e31_:s twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
o32_  b194a | sien(laibnsel :s:tsdt:r:iantgo_mviice<wu itnetx3t2,_ ti>n*t 3a2b_stl*_ naobnsnlu_lnlo nCnounltlr ovlaWloured,(

            | |                                                         ^                              ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 : note: expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.hIn file included from :s2/s2builder.cc42::
71In file included from :
/usr/local/clang/include/absl/flags/internal/flag.hIn file included from :../src/s2/s2builder.h30::
36/usr/local/clang/include/absl/base/call_once.h:
:In file included from 195../src/s2/mutable_s2shape_index.h::1630::
 In file included from /usr/local/clang/include/absl/container/btree_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h  :19570 | :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198o:
nIn file included from c/usr/local/clang/include/absl/strings/str_cat.he:_116f:
lIn file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hg:*23 :
a/usr/local/clang/include/absl/strings/numbers.hb:s162l:_57n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll f  l162a | gb)o o{l
       s| a               ^f
e_/usr/local/clang/include/absl/base/nullability.hs:t241r:t22o:6 4note: _expanded from macro 'absl_nonnull'b
as  e241( | a#bdself:i:nset raibnsgl__vnioenwn utlelx t_,N oinnntu6l4l_
t      *|                       ^a
bsl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:In file included from 21s2/s2builder.cc:
:In file included from 71/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42../src/s2/s2builder.h:
:In file included from 36/usr/local/clang/include/absl/flags/internal/flag.h:
:In file included from 30../src/s2/mutable_s2shape_index.h:
:30/usr/local/clang/include/absl/base/call_once.h:
:In file included from 200/usr/local/clang/include/absl/container/btree_map.h::4066::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
  In file included from 200/usr/local/clang/include/absl/strings/str_cat.h | :v116o:
iIn file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.h :L23o:
w/usr/local/clang/include/absl/strings/numbers.hL:e165v:e39l:C awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
Once  (165a | b s l : : o n c e _ f l a g *   a b s l _ n o n naublsll :f:liangt,1 2C8a*l laabbslle_&n&o nfnnu,l
l       | v                                       ^a
lu/usr/local/clang/include/absl/base/nullability.he:,241 :i22n:t  note: bexpanded from macro 'absl_nonnull'a
se  )241; | 
#      d| e                                      ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRIn file included from es2/s2builder.ccp:*71 :
aIn file included from b../src/s2/s2builder.hs:l36_:
nIn file included from o../src/s2/mutable_s2shape_index.hn:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h :C67l:
on/usr/local/clang/include/absl/container/internal/btree_container.he:A523n:d31U:n rwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f
() c  o523n | s t ; 
        |               ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
fa  l241s | e#,d effailnsee )a;b
s      l| _                              ^n
onn/usr/local/clang/include/absl/container/internal/btree_container.hu:l496l: 9_:N onote: nmacro 'ABSL_INTERNAL_X' defined heren
ull  
496       | | #                     ^d
efine ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      In file included from | s2/s2builderutil_closed_set_normalizer.cc                  ~~~~~~~~~~~~:
18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h/usr/local/clang/include/absl/container/internal/btree_container.h::24511:
:In file included from 47../src/s2/id_set_lexicon.h:: 28:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :51137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
AIn file included from B/usr/local/clang/include/absl/log/internal/strip.hS:L26_:
IIn file included from N/usr/local/clang/include/absl/log/internal/log_message.hT:E47R:
NIn file included from A/usr/local/clang/include/absl/log/internal/structured_proto.hL:_27A:
TIn file included from T/usr/local/clang/include/absl/log/internal/proto.hR:I34B:
UT/usr/local/clang/include/absl/types/span.hE:_212C:A22P:T Uwarning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]E
D_BY  (212t | h i su)s)i)n g   p o i n t e r   =   T *   a b s l _ n u l l\a
b      i| l                                              ^~~~i
ty_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:/usr/local/clang/include/absl/container/internal/btree_container.h26::
527In file included from :/usr/local/clang/include/absl/log/internal/log_message.h30::47 :
In file included from warning: /usr/local/clang/include/absl/log/internal/structured_proto.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]27
:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:  34527:
 | /usr/local/clang/include/absl/types/span.h : 213 : 34 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      213  |      u stirnuge ,c ofnaslts_ep)o;i
n      t| e                             ^r
 =/usr/local/clang/include/absl/container/internal/btree_container.h :c496o:n9s:t  note: Tmacro 'ABSL_INTERNAL_X' defined here*
 ab  s496l | _#nduelflianbei lAiBtSyL__uInNkTnEoRwNnA;L
_      X| (                                 ^F
un/usr/local/clang/include/absl/base/nullability.hc:,289 :C34a:l lnote: eexpanded from macro 'absl_nullability_unknown'e
, K  Q289u | a#ld,e fMiQnuea la,b sKlV_anluulel,a bMiVlailtuye_,u n.k.n.o)w n   _ N u\l
l      _| u        ^n
specified
      |                                  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBIn file included from Us2/s2builder_graph.ccT:E18_:
CIn file included from A../src/s2/s2builder_graph.hP:T31U:
RIn file included from E../src/s2/s2builder.hD:_36B:
YIn file included from (../src/s2/mutable_s2shape_index.ht:h41i:
sIn file included from )../src/s2/s2cell_id.h):)43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
  /usr/local/clang/include/absl/status/internal/status_internal.h :\149
:      13| :                                              ^~~~ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2builder_graph.cc532::1824:
:In file included from  ../src/s2/s2builder_graph.h:warning: 31:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2builder.h:36:
  In file included from 532../src/s2/mutable_s2shape_index.h | : 41 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28In file included from  :
s2/s2builderutil_closed_set_normalizer.cc In file included from : ../src/s2/s2point.h18 ::
 27In file included from  :
../src/s2/s2builderutil_closed_set_normalizer.h In file included from :f../src/s2/s2coder.h24a::
l23In file included from s:
../src/s2/id_set_lexicon.heIn file included from :)/usr/local/clang/include/absl/status/status.h;28
::
      67In file included from | :
../src/s2/base/logging.h                       ^:/usr/local/clang/include/absl/status/internal/status_internal.h
21::
150/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from ::/usr/local/clang/include/absl/log/check.h25496:::37 9:
:warning: In file included from  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
note: :macro 'ABSL_INTERNAL_X' defined here21
:
  In file included from 150/usr/local/clang/include/absl/log/internal/check_op.h |   : 49641  | :
 #In file included from  d/usr/local/clang/include/absl/log/internal/strip.hce:of26ni:
snIn file included from te/usr/local/clang/include/absl/log/internal/log_message.h  :aA47bBs:
SlIn file included from L:/usr/local/clang/include/absl/log/internal/structured_proto.h:_:SI27tN:
aTIn file included from tE/usr/local/clang/include/absl/log/internal/proto.huR:sN34*A:
 La/usr/local/clang/include/absl/types/span.h_b:Xs733l(_:Fn31uo:nnn uclwarning: ,ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
sCtaalt  lu733es | ,ec ,oc noKsnQtsutea xlcp,hr  aMSQrpu*aa nla<,bT s>Kl V_ManalokuneenS,upl laMn V(paTrl*eu feai,bx )s.;l.
_.      n)| u                         ^l 
l a /usr/local/clang/include/absl/base/nullability.hb :l\241e
:       22p| :t        ^ r
note:  expanded from macro 'absl_nonnull'A
BS  L241_ | A#TdTeRfIiBnUeT Ea_bLsIlF_EnToInMnEu_lBlO U_NNDo,n
n      u| l                              ^l

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2builder_graph.ccf:i18n:
eIn file included from  ../src/s2/s2builder_graph.ha:b31s:
lIn file included from _../src/s2/s2builder.hn:u36l:
lIn file included from a../src/s2/mutable_s2shape_index.hb:l41e:
 In file included from _../src/s2/s2cell_id.hN:u43l:
lIn file included from a../src/s2/s1angle.hb:l28e:

In file included from       ../src/s2/s2point.h| :                      ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o531n:In file included from n3s2/s2builderutil_closed_set_normalizer.ccu:l:l 18 :
swarning: tIn file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a../src/s2/s2builderutil_closed_set_normalizer.ht
:u24s:
,In file included from    ../src/s2/id_set_lexicon.hc531:o | n28 s:
t In file included from A ../src/s2/base/logging.hcB:hS21aLr:
_*IIn file included from  N/usr/local/clang/include/absl/log/check.hTa:Eb37Rs:
NlIn file included from A_/usr/local/clang/include/absl/log/internal/check_impl.hLn:o_n21Xn:
(uIn file included from il/usr/local/clang/include/absl/log/internal/check_op.hnl:s 41per:
reIn file included from tf/usr/local/clang/include/absl/log/internal/strip.hi_x:)o;26r
:
_      In file included from a| /usr/local/clang/include/absl/log/internal/log_message.hs                                                         ^:s
47i:
/usr/local/clang/include/absl/base/nullability.hgIn file included from :n/usr/local/clang/include/absl/log/internal/structured_proto.h241,:: 2722i:
:nIn file included from  s/usr/local/clang/include/absl/log/internal/proto.hnote: e:expanded from macro 'absl_nonnull'r34
t:
_  /usr/local/clang/include/absl/types/span.ho241:r | 739_#:ad21se:sf iiwarning: ngtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]en 
_aibms  pl739l_ | n,So pncnaounnl<slTt > _ &NM,oa nk&neu&lS,lp 
af      na| (lT                     ^s*
e ,a
b      s| l  ^_
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509a:b52l:e  note: bexpanded from macro 'ABSL_INTERNAL_X'e
gin   509A | B S L _ A T T R I B UATBES_LL_IIFNETTEIRMNEA_LB_OAUTNTDR,I
B      U| T                    ^E
_C/usr/local/clang/include/absl/base/nullability.hA:P257T:U23R:E Dnote: _expanded from macro 'absl_nullable'B
Y(  t257h | i#sd)e)f,i n e   a b s l _ n u l l a b l e   _ N u l l a b\l
e      
|                                                          ^| 
                      ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32In file included from  | s2/s2builderutil_closed_set_normalizer.cc#:d18e:
fIn file included from i../src/s2/s2builderutil_closed_set_normalizer.hn:e24 :
AIn file included from B../src/s2/id_set_lexicon.hS:L28_:
IIn file included from N../src/s2/base/logging.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37I:
FIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hf:a21l:
sIn file included from e/usr/local/clang/include/absl/log/internal/check_op.h(:i41f:
_In file included from s/usr/local/clang/include/absl/log/internal/strip.ha:t26i:
sIn file included from f/usr/local/clang/include/absl/log/internal/log_message.hi:e47d:
,In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h.:.27.:
)In file included from  /usr/local/clang/include/absl/log/internal/proto.h_:_34V:
A/usr/local/clang/include/absl/types/span.h_:A740R:G21S:_ _warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|         ^
  740 |          In file included from  s2/s2builder.cc : 71 :
 In file included from  ../src/s2/s2builder.h : 36T:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.ha:b531l:e3 :e nwarning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
 noe  x531c | e p tA B{S
L      _| I                    ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N257A:L23_:X (note: iexpanded from macro 'absl_nullable'n
se  r257t | _#odre_faisnsei ganb,s li_nnsuelrlta_bolre_ a_sNsuilglna_bilmep
l      ,|                        ^c
onst &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2builderutil_closed_set_normalizer.cc534::1823:
:In file included from  ../src/s2/s2builderutil_closed_set_normalizer.h:warning: 24:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/id_set_lexicon.h:28:
  In file included from 534../src/s2/base/logging.h | : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from t/usr/local/clang/include/absl/log/internal/strip.hr:u26e:
)In file included from ;/usr/local/clang/include/absl/log/internal/log_message.h
:      47| :
                      ^In file included from 
/usr/local/clang/include/absl/log/internal/structured_proto.h:/usr/local/clang/include/absl/container/internal/btree_container.h27::
496In file included from :/usr/local/clang/include/absl/log/internal/proto.h9::34 :
note: /usr/local/clang/include/absl/types/span.hmacro 'ABSL_INTERNAL_X' defined here:
794:8:   496warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
defi  n794e |   A B S LT_*I NaTbEsRlN_AnLu_lXl(aFbulnec ,p tCra lAlBeSeL,_ AKTQTuRaIlB,U TMEQ_uLaIlF,E TKIVMaEl_uBeO,U NMDV,a lsuiez,e _.t. .s)i z e )   n\o
e      x| c        ^e
pt {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/id_set_lexicon.h::53328::
3In file included from :../src/s2/base/logging.h :21warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :53321 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.hA:B41S:
LIn file included from /usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_find_polygon_degeneracies.cc -o s2/s2builderutil_find_polygon_degeneracies.o
_/usr/local/clang/include/absl/log/internal/strip.hI:N26T:
EIn file included from R/usr/local/clang/include/absl/log/internal/log_message.hN:A47L:
_In file included from X/usr/local/clang/include/absl/log/internal/structured_proto.h(:i27n:
sIn file included from e/usr/local/clang/include/absl/log/internal/proto.hr:t34_:
o/usr/local/clang/include/absl/types/span.hr:_799a:s32s:i gwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 in  s799e | rStp_aonr<_caosnssitg nT_>i mMpalk,e CcoonnssttS p&a,n (&T&*,  afbaslls_en,u
l      l| a  ^b
le/usr/local/clang/include/absl/container/internal/btree_container.h :b509e:g52i:n 
      note: | expanded from macro 'ABSL_INTERNAL_X'                               ^

/usr/local/clang/include/absl/base/nullability.h  :509257 | : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | A#BdSeLf_iInNeT EaRbNsAlL__nAuTlTlRaIbBlUeT E__NCuAlPlTaUbRlEeD
_      B| Y                      ^(
this)),           In file included from  s2/s2builderutil_closed_set_normalizer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_closed_set_normalizer.h : 24 :
 In file included from  ../src/s2/id_set_lexicon.h : 28\:

In file included from       ../src/s2/base/logging.h| :                                                   ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/common.h::3732:
:In file included from 9/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/log/internal/check_op.h
:41:
In file included from    /usr/local/clang/include/absl/log/internal/strip.h32: | 26#:
dIn file included from e/usr/local/clang/include/absl/log/internal/log_message.hf:i47n:
eIn file included from  /usr/local/clang/include/absl/log/internal/structured_proto.hA:B27S:
LIn file included from _/usr/local/clang/include/absl/log/internal/proto.hI:N34T:
E/usr/local/clang/include/absl/types/span.hR:N801A:L32_:I Fwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
als  e801( | i f _ s a t i s f i e d ,   . . . )   _ _ V A _ A R G S _T_*
       a| b        ^s
l_nullableIn file included from  s2/s2builder.cce:n71d:
)In file included from  ../src/s2/s2builder.hn:o36e:
xIn file included from c../src/s2/mutable_s2shape_index.he:p30t:
 In file included from {/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                               ^/usr/local/clang/include/absl/container/internal/btree_container.h
:533:/usr/local/clang/include/absl/base/nullability.h3::257 :23warning: : passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
note: expanded from macro 'absl_nullable'
    533257 |  |  # dAeBfSiLn_eI NaTbEsRlN_AnLu_lXl(aibnlsee r_tN_uolrl_aabslsei
g      n| ,                      ^ 
insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insertIn file included from _s2/s2builder_graph.cco:r18_:
aIn file included from s../src/s2/s2builder_graph.hs:i31g:
nIn file included from ,../src/s2/s2builder.h :i36n:
sIn file included from e../src/s2/mutable_s2shape_index.hr:t41_:
oIn file included from r../src/s2/s2cell_id.h_:a43s:
sIn file included from i../src/s2/s1angle.hg:n28_:
iIn file included from m../src/s2/s2point.hp:l27,:
 In file included from c../src/s2/s2coder.ho:n23s:
t/usr/local/clang/include/absl/status/status.h :&725,: 38&:& ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
alse  ,725
 |        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
ta  t534i | c   s t a t u s _ i n t e r n a l : :tSrtuaet)u;s
R      e| p                  ~~~~~*
 ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l511_:n47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l Pr  e511p | a r e T o M o d i f yA(B
S      L| _                                     ^I
NTE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:A Tnote: Texpanded from macro 'absl_nonnull'R
IB  U241T | E#_dCeAfPiTnUeR EaDb_sBlY_(ntohninsu)l)l)  _ N o n n u l l 
        |                       ^ 
           \
      |                                               ^~~~
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull /usr/local/clang/include/absl/container/internal/btree_container.hE:m536p:t24y:S twarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ng(  )536; | 
        |                              ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    f241a | l#sdee)f;i
n      e|                         ^a
bs/usr/local/clang/include/absl/container/internal/btree_container.hl:_496n:o9n:n unote: lmacro 'ABSL_INTERNAL_X' defined herel
 _N  o496n | n#udlelf
i      n| e                     ^ 
ABSL_INTERNAL_X(Func, CaIn file included from ls2/s2builder_graph.ccl:e18e:
,In file included from  ../src/s2/s2builder_graph.hK:Q31u:
aIn file included from l../src/s2/s2builder.h,: 36M:
QIn file included from u../src/s2/mutable_s2shape_index.ha:l41,:
 In file included from K../src/s2/s2cell_id.hV:a43l:
uIn file included from e../src/s2/s1angle.h,: 28M:
VIn file included from a../src/s2/s2point.hl:u27e:
,In file included from  ../src/s2/s2coder.h.:.23.:
)/usr/local/clang/include/absl/status/status.h : 733 : 29 :\ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]        ^

  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assigIn file included from ns2/s2builder_graph.cc_:i18m:
pIn file included from l../src/s2/s2builder_graph.h,: 31c:
oIn file included from n../src/s2/s2builder.hs:t36 :
&In file included from ,../src/s2/mutable_s2shape_index.h :&41&:
,In file included from  ../src/s2/s2cell_id.ht:r43u:
eIn file included from ,../src/s2/s1angle.h
:      28| :
  ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509../src/s2/s2coder.h::5223::
 /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'ABSL_INTERNAL_X'751
:61:   warning: 509type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
       751  |      s tAaBtSiLc_ IuNiTnEtRpNtArL__tA TPToRiInBtUeTrET_oCRAePpT(UsRtEaDt_uBsY_(itnhtiesr)n)a,l : : S t a t u s R e p *   a b s l _ n o n n u l\l
       r| )                                                   ^;

      | /usr/local/clang/include/absl/container/internal/common.h                                                            ^:
31:9/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22macro 'ABSL_INTERNAL_IF_true' defined here:
 note:    expanded from macro 'absl_nonnull'31
 | #  d241e | f#idneef iAnBeS La_bIsNlT_EnRoNnAnLu_lIlF __tNrounen(uilfl_
s      a| t                     ^i
sfied, ...) if_satisfiIn file included from es2/s2builder_graph.ccd:
18      :
| In file included from         ^../src/s2/s2builder_graph.h
:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2builder.ccIn file included from :../src/s2/s2point.h71::
27In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2coder.h36::
23In file included from :
../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/status/status.h30::
752In file included from :/usr/local/clang/include/absl/container/btree_map.h44::67 :
warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
535:3:   752warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
 stat  i535c |   c oAnBsStL _sItNaTtEuRsN_AiLn_tXe(rinnasle:r:tS_toart_uassRseipg*n ,a bisnls_enrotn_nourl_la sRseipgTno_Piomipnlt,e rc(o
n      s| t                                           ^ 
&,/usr/local/clang/include/absl/base/nullability.h :&241&:,22 :t rnote: uexpanded from macro 'absl_nonnull'e
,
        241|  |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
de  f536i | n e   a b s l _ n o n n u l l   _ N ofnanluslel)
;      
|                            ^| 
                  ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, In file included from Ms2/s2builder_graph.ccQ:u18a:
lIn file included from ,../src/s2/s2builder_graph.h :K31V:
aIn file included from l../src/s2/s2builder.hu:e36,:
 In file included from M../src/s2/mutable_s2shape_index.hV:a41l:
uIn file included from e../src/s2/s2cell_id.h,: 43.:
.In file included from .../src/s2/s1angle.h): 28 :
 In file included from  ../src/s2/s2point.h :\27
:
      In file included from | ../src/s2/s2coder.h        ^:
23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define a/usr/local/clang/include/absl/container/internal/btree_container.hb:s551l:_3n:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll _  N551o | n n uAlBlS
L      _| I                     ^N
TERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, trueIn file included from )s2/s2builder_graph.cc;:
18      :
| In file included from   ^../src/s2/s2builder_graph.h
:31:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2builder.h509::3652:
:In file included from  ../src/s2/mutable_s2shape_index.h:note: 41expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2cell_id.h:43:
  In file included from 509../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h :A23B:
S/usr/local/clang/include/absl/status/status.hL:_1038I:N33T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_A T1038T | R I B U TsEt_aCtAuPsT_UiRnEtDe_rBnYa(lt:h:iSst)a)t,u s R e p *   a b s l _ n o n n u l l   r e p )  \{

            | |                                                    ^                                ^

/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/base/nullability.h::32241::922::  note: note: macro 'ABSL_INTERNAL_IF_false' defined hereexpanded from macro 'absl_nonnull'

     24132 |  | ##ddeeffiinnee  aAbBsSlL__nIoNnTnEuRlNlA L__NIoFn_nfuallls
e      (| i                     ^f
_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))             In file included from  s2/s2builder_graph.cc : 18 :
 In file included from  ../src/s2/s2builder_graph.h : 31 :
 In file included from  ../src/s2/s2builder.h\:
36      :
| In file included from                                                    ^../src/s2/mutable_s2shape_index.h
:41:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2cell_id.h31::439:
:In file included from  ../src/s2/s1angle.h:note: 28macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from ../src/s2/s2point.h:27   :
31In file included from  | ../src/s2/s2coder.h#:d23e:
f/usr/local/clang/include/absl/status/status.hi:n1063e: 13A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INTE R1063N | AcLo_nIsFt_ tcrhuaer(*i fa_bssalt_insofnineudl,l  .S.t.a)t uisfM_essastaigsefAiseCdS
t      r| (        ^

      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2builder.cc  :24171 | :
#In file included from d../src/s2/s2builder.he:f36i:
nIn file included from e../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u551l:l3 :_ Nwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
null
        | 551                     ^ | 
  ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull In file included from fs2/s2builder_graph.ccl:a18g:
)In file included from ;../src/s2/s2builder_graph.h
:      31| :
                 ^In file included from 
../src/s2/s2builder.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/mutable_s2shape_index.h::2244::
 In file included from note: ../src/s2/s2pointutil.hexpanded from macro 'absl_nonnull':
27:
  241../src/s2/util/math/matrix3x3.h | :#276d:e5f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl_  n276o | n n u l lS 2__NCoHnEnCuKl_lN
E      (| d                     ^e
t, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
In file included from   s2/s2builder.cc120: | 71 :
 In file included from A../src/s2/s2builder.hB:S36L:
_In file included from L../src/s2/mutable_s2shape_index.hO:G33_:
IIn file included from N../src/s2/base/commandlineflags.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/flags/flag.hL:_42C:
HIn file included from E/usr/local/clang/include/absl/flags/internal/flag.hC:K30_:
N/usr/local/clang/include/absl/base/call_once.hE:_111I:M40P:L (warning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
al1)  ,111  | #vvoaild1 ,L o(wvLaelv2e)l,C a#lvlaOln2c)e
(      a| b  ^s
l:/usr/local/clang/include/absl/log/internal/check_impl.h::o51n:c3e:_ fnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'a
g*    a51b | s l _AnBoSnLn_uLlOlG _fIlNaTgE,R NCAaLl_lCaHbElCeK&_&O Pf(nC,h
e      c| k                                       ^_
NE/usr/local/clang/include/absl/base/nullability.h,: 241!:=22,:  vnote: aexpanded from macro 'absl_nonnull'l
1,   241v | a#ld1e_ftienxet ,a bvsall_2n,o nvnaull2l_ t_eNxotn)n
u      l| l  ^

      |                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder_graph.cc:18:
In file included from ../src/s2/s2builder_graph.h:31:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPLIn file included from (s2/s2builder.cc(:v71a:
lIn file included from 1../src/s2/s2builder.h):,36 :
#In file included from v../src/s2/mutable_s2shape_index.ha:l331:
,In file included from  ../src/s2/base/commandlineflags.h(:v21a:
lIn file included from 2/usr/local/clang/include/absl/flags/flag.h):,42 :
#In file included from v/usr/local/clang/include/absl/flags/internal/flag.ha:l302:
)/usr/local/clang/include/absl/base/call_once.h
:      153| :  ^41
: /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :51type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
3: note:   expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'153
 |       51  | C a lAlBOSnLc_eLIOmGp_lI(NsTtEdR:N:AaLt_oCmHiEcC<Ku_iOnPt(3C2h_etc>k*_ NaEb,s l!_=n,o nvnaull1l,  cvoanlt1r_otle,x
t      ,|                                          ^v
al2/usr/local/clang/include/absl/base/nullability.h,: 241v:a22l:2 _note: texpanded from macro 'absl_nonnull'e
xt  )241
 |       #| d  ^e
fi/usr/local/clang/include/absl/log/internal/check_op.hn:e75 :a61b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
onn   u75l | l   _ANBoSnLn_uLlOlG
_      I| N                     ^T
ERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_get_snapped_winding_delta.cc -o s2/s2builderutil_get_snapped_winding_delta.o
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:71:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_lax_polygon_layer.cc -o s2/s2builderutil_lax_polygon_layer.o
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:24:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAIn file included from Ls2/s2builderutil_closed_set_normalizer.cc_:I18F:
_In file included from t../src/s2/s2builderutil_closed_set_normalizer.hr:u25e:
(In file included from i../src/s2/s2builder.hf:_31s:
aIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.hi:s43:
fIn file included from ied/usr/local/clang/include/absl/container/hash_container_defaults.h,: 19.:
.In file included from ./usr/local/clang/include/absl/container/internal/hash_function_defaults.h): 57i:
fIn file included from _/usr/local/clang/include/absl/hash/hash.hs:a89t:
iIn file included from s/usr/local/clang/include/absl/hash/internal/hash.hf:i79e:
dIn file included from 
/usr/local/clang/include/absl/base/internal/endian.h      :| 26        ^:

/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inIn file included from ls2/s2builder.cci:n113e:
 In file included from u../src/s2/s2polygon.hi:n29t:
1In file included from 6/usr/local/clang/include/absl/container/flat_hash_map.h_:t45 :
U/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:a146l:i3g:n ewarning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
oad16  (146c | o n sAtB SvLo_iIdN*T EaRbNsAlL__nXo(ninnuslelr tp_)o r{_
a      s| s                                            ^i
gn,/usr/local/clang/include/absl/base/nullability.h :i241n:s22e:r tnote: _expanded from macro 'absl_nonnull'o
r_  a241s | s#idgenf_iinmep la,b sclo_nnsotn&n,u lclo n_sNto&n,n utlrlu
e      ,| 
                     ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTIn file included from Es2/s2builderutil_closed_set_normalizer.ccR:N18A:
LIn file included from _../src/s2/s2builderutil_closed_set_normalizer.hA:T25T:
RIn file included from I../src/s2/s2builder.hB:U31T:
EIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hC:A43P:
TIn file included from U/usr/local/clang/include/absl/container/hash_container_defaults.hR:E19D:
_In file included from B/usr/local/clang/include/absl/container/internal/hash_function_defaults.hY:(57t:
hIn file included from i/usr/local/clang/include/absl/hash/hash.hs:)89):
,In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h : 26 :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h : 45 : 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        45  |  i\n
l      i| n                                              ^~~~e
 uint32/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:t146 :U3n:a lwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]g
n/usr/local/clang/include/absl/container/internal/raw_hash_map.he:135d:L16o:a dnote: 3expanded from macro 'ABSL_INTERNAL_X'2
(co  n135s | t   v o i d *   a b stlh_inso)n)n)u lAlB SpL)_ A{T
T      R| I                                            ^B
UTE/usr/local/clang/include/absl/base/nullability.h_:L241I:F22E:T Inote: Mexpanded from macro 'absl_nonnull'E
_B  O241U | N#Dd e{f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
\
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGSIn file included from _s2/s2builderutil_closed_set_normalizer.cc_:
18      :
| In file included from         ^../src/s2/s2builderutil_closed_set_normalizer.h
:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnulIn file included from ls2/s2builder.cc :p113):
 In file included from {../src/s2/s2polygon.h
:      29| :
                                            ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h241::14922::51 : note: warning: expanded from macro 'absl_nonnull'
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  241 | #  d149e | f i n e   a b s l _ n o n n u l l   _tNrounen,u lAlB
S      L| _                     ^I
NTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, In file included from Ks2/s2builderutil_closed_set_normalizer.ccQ:u18a:
lIn file included from ,../src/s2/s2builderutil_closed_set_normalizer.h :V25Q:
uIn file included from a../src/s2/s2builder.hl:,31 :
KIn file included from V/usr/local/clang/include/absl/container/flat_hash_set.ha:l43u:
eIn file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h :V19V:
aIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:e57,:
 In file included from T/usr/local/clang/include/absl/hash/hash.ha:i89l:
,In file included from  /usr/local/clang/include/absl/hash/internal/hash.h.:.79.:
)In file included from  /usr/local/clang/include/absl/base/internal/endian.h\:
26      :
| /usr/local/clang/include/absl/base/internal/unaligned_access.h        ^:
57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assIn file included from is2/s2builderutil_closed_set_normalizer.ccg:n18,:
 In file included from i../src/s2/s2builderutil_closed_set_normalizer.hn:s25e:
rIn file included from t../src/s2/s2builder.h_:o31r:
_In file included from a/usr/local/clang/include/absl/container/flat_hash_set.hs:s43i:
gIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.h_:i19m:
pIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,: 57c:
oIn file included from n/usr/local/clang/include/absl/hash/hash.hs:t89&:
,In file included from  /usr/local/clang/include/absl/hash/internal/hash.hc:o79n:
sIn file included from t/usr/local/clang/include/absl/base/internal/endian.h&:,26 :
t/usr/local/clang/include/absl/base/internal/unaligned_access.hr:u61e:,36
:       | warning:   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133   :6152 | :i nnote: lexpanded from macro 'ABSL_INTERNAL_X'i
ne   v133o | i d   U n a l i g n eAdBSStLo_rIeN3T2E(RvNoAiLd_*A TaTbRsIlB_UnToEn_nCuAlPlT UpR,E Du_iBnYt(3t2h_its )v)),  { 
        |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i\n
e       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
_No   n31n | u#ldle
f      i| n                     ^e
 ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hs2/s2builder.cc::19113:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/s2polygon.h::5729:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/container/flat_hash_map.h::8945:
:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::79148:
:In file included from 3/usr/local/clang/include/absl/base/internal/endian.h:: 26:
warning: /usr/local/clang/include/absl/base/internal/unaligned_access.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
65:36: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]148
 |   A   B65S | Li_nIlNiTnEeR NvAoLi_dX (Uinnasleirgtn_eodrS_taosrsei6g4n(,v oiinds*e ratb_solr__naosnsniuglnl_ ipm,p lu,i ncto6n4s_tt& ,v )c o{n
s      t| &                                   ^,
 t/usr/local/clang/include/absl/base/nullability.hr:u241e:,22
:       | note:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'

    241149 |  | # d e f i n e   a b s l _ n o n n u ltlr u_eN,o nAnBuSlLl_
I      N| T                     ^E
RNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b153s:l3_:n owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull   p153) |   { 
A      B| S                                   ^L
_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Xexpanded from macro 'absl_nonnull'(
in  s241e | r#td_eofri_naes saibgsnl,_ nionnsneurltl_ o_rN_oansnsuilgln
_      i| m                     ^p
l, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_IIn file included from Ns2/s2builderutil_closed_set_normalizer.ccT:E18R:
NIn file included from A../src/s2/s2builderutil_closed_set_normalizer.hL:25_:
AIn file included from T../src/s2/s2builder.hT:R31I:
BIn file included from U/usr/local/clang/include/absl/container/flat_hash_set.hT:E43_:
CIn file included from A/usr/local/clang/include/absl/container/hash_container_defaults.hP:T19U:
RIn file included from E/usr/local/clang/include/absl/container/internal/hash_function_defaults.hD:_57B:
YIn file included from (/usr/local/clang/include/absl/hash/hash.ht:h89i:
sIn file included from )/usr/local/clang/include/absl/hash/internal/hash.h):,79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 164 : 27 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       164  |  i n l i n e   v o\i
d       | S                                                   ^t
or/usr/local/clang/include/absl/container/internal/common.he:1326:(9v:o inote: dmacro 'ABSL_INTERNAL_IF_false' defined here*
 ab   s32l | _#ndoenfniunlel  ApB,S Lu_iInNtT1E6R_NtA Lv_)I F{_
f      a| l                          ^s
e(i/usr/local/clang/include/absl/base/nullability.hf:_241s:a22t:i snote: fexpanded from macro 'absl_nonnull'i
ed  ,241  | .#.d.e)f i_n_eV Aa_bAsRlG_Sn_o_n
n      u| l        ^l
 _Nonnull
      | In file included from                      ^s2/s2builder.cc
:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, inseIn file included from rs2/s2builderutil_closed_set_normalizer.cct:_18o:
rIn file included from _../src/s2/s2builderutil_closed_set_normalizer.ha:s25s:
iIn file included from g../src/s2/s2builder.hn:_31i:
mIn file included from p/usr/local/clang/include/absl/container/flat_hash_set.hl:,43 :
cIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:s19t:
&In file included from ,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :&57&:
,In file included from  /usr/local/clang/include/absl/hash/hash.hf:a89l:
sIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h,:
79      :
| /usr/local/clang/include/absl/base/internal/endian.h  ^:
168:36/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 135:warning: 16:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  168 |   i135n | l i n e   u i n t 3 2t_hti sL)o)a)d 3A2B(ScLo_nAsTtT RvIoBiUdT*E _aLbIsFlE_TnIoMnEn_uBlOlU NpD)  {{ 
        |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n               ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l31l: 9_:N onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull   
31       | | #                     ^d
efine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_In file included from ss2/s2builderutil_closed_set_normalizer.cca:t18i:
sIn file included from f../src/s2/s2builderutil_closed_set_normalizer.hi:e25d:

In file included from       ../src/s2/s2builder.h| :        ^31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from In file included from s2/s2builder.cc/usr/local/clang/include/absl/hash/internal/hash.h::11379:
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/base/internal/endian.h::29172:
:In file included from 27/usr/local/clang/include/absl/container/flat_hash_map.h:: 45:
warning: /usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
153:3:   172warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
nline   153v | o i dA BSStLo_rIeN3T2E(RvNoAiLd_*X (aibnssle_rnto_nonru_lals spi,g nu,i insert_notr3_2a_sts ivg)n _{i
m      p| l                          ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22&:,  note: &expanded from macro 'absl_nonnull'&
,   f241a | l#sdee,f
i      n| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
abs  l154_ | n o n n u l l   _ N o n n u l l 
        | t                     ^r
ue, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |       In file included from  s2/s2builderutil_closed_set_normalizer.cc : 18 :
tIn file included from h../src/s2/s2builderutil_closed_set_normalizer.hi:s25):
)In file included from )../src/s2/s2builder.h :A31B:
SIn file included from L/usr/local/clang/include/absl/container/flat_hash_set.h_:A43T:
TIn file included from R/usr/local/clang/include/absl/container/hash_container_defaults.hI:B19U:
TIn file included from E/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:L57I:
FIn file included from E/usr/local/clang/include/absl/hash/hash.hT:I89M:
EIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hB:O79U:
N/usr/local/clang/include/absl/base/internal/endian.hD: 176{: 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      176  |  i n l i n e   u i n t 6 4 _ t   L o a\d
6      4| (          ^~~~c
onst void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |     In file included from  s2/s2builderutil_closed_set_normalizer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_closed_set_normalizer.h : 25 :
 In file included from  ../src/s2/s2builder.h : 31 :
fIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.hl:s43e:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hA:B19S:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hI:N57T:
EIn file included from R/usr/local/clang/include/absl/hash/hash.hN:A89L:
_In file included from S/usr/local/clang/include/absl/hash/internal/hash.hI:N79G:
L/usr/local/clang/include/absl/base/internal/endian.hE:_180A:R27G:( )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                    ^  
180 | /usr/local/clang/include/absl/container/internal/raw_hash_map.hi:n120l:i9n:e  note: vmacro 'ABSL_INTERNAL_X' defined hereo
id   S120t | o#rdee6f4i(nveo iAdB*S La_bIsNlT_EnRoNnAnLu_lXl( Fpu,n cu,i nCta6l4l_ete ,v )K Q{u
a      l| ,                          ^ 
VQ/usr/local/clang/include/absl/base/nullability.hu:a241l:,22 :K Vnote: aexpanded from macro 'absl_nonnull'l
ue  ,241  | V#Vdaelfuien,e  Taabisll,_ n.o.n.n)u l\l
       _| N        ^o
nnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :157warning: :3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
250 | in  l157i | n e  AuBiSnLt_1I6N_TtE RLNoAaLd_1X6((icnosnesrtt _voori_da*s saibgsnl,_ nionnsneurltl_ opr)_ a{s
s      i| g                                   ^n
_im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
&,   241& | &#,d etfriunee, 
a      b| s  ^l
_n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n133n:u52l:l  note: _expanded from macro 'ABSL_INTERNAL_X'N
onn  u133l | l 
        |                       ^ 
     ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),       In file included from  s2/s2builderutil_closed_set_normalizer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_closed_set_normalizer.h : 25 :
 In file included from  ../src/s2/s2builder.h : 31 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
\In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                                                   ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/container/internal/common.h57::
31In file included from :/usr/local/clang/include/absl/hash/hash.h9::89 :
In file included from note: /usr/local/clang/include/absl/hash/internal/hash.hmacro 'ABSL_INTERNAL_IF_true' defined here:
79:
/usr/local/clang/include/absl/base/internal/endian.h   :31254 | :#27d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e A  B254S | Li_nIlNiTnEeR NvAoLi_dI FS_ttorruee1(6i(fv_osiadt*i safbiseld_,n o.n.n.u)l li fp_,s autiinstf1i6e_dt
       v| )        ^ 
{
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2builder.cc241: | 113#:
dIn file included from e../src/s2/s2polygon.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.ha:b45s:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n157o:n3n:u lwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
_Nonn  u157l | l 
       A| B                     ^S
L_INTERNAL_X(insert_or_assign, insert_or_assign_impl, conIn file included from ss2/s2builderutil_closed_set_normalizer.cct:&18,:
 In file included from &../src/s2/s2builderutil_closed_set_normalizer.h&:,25 :
tIn file included from r../src/s2/s2builder.hu:e31,:

In file included from       /usr/local/clang/include/absl/container/flat_hash_set.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:  19158:
 | In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 57 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 258 :t36r:u ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L258_ | IiNnTlEiRnNeA Lu_iSnItN3G2L_Et_ ALRoGa(d)3)2;(
c      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
t v/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:i133d:*47 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_non  n133u | l l   p )   { 
        |                                     ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  A241T | T#RdIeBfUiTnEe_ CaAbPsTlU_RnEoDn_nBuYl(lt h_iNso)n)n,u l l 
        |                       ^ 
                   \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 | In file included from  s2/s2builderutil_closed_set_normalizer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_closed_set_normalizer.h : 25 :
 In file included from t../src/s2/s2builder.hh:i31s:
)In file included from )/usr/local/clang/include/absl/container/flat_hash_set.h): 43A:
BIn file included from S/usr/local/clang/include/absl/container/hash_container_defaults.hL:_19A:
TIn file included from T/usr/local/clang/include/absl/container/internal/hash_function_defaults.hR:I57B:
UIn file included from T/usr/local/clang/include/absl/hash/hash.hE:_89L:
IIn file included from F/usr/local/clang/include/absl/hash/internal/hash.hE:T79I:
M/usr/local/clang/include/absl/base/internal/endian.hE:_262B:O27U:N Dwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{
      262  |  i n l i n e   v o i d   S t o r e 3 2 ( v o i d *\ 
a      b| s               ^l
_n/usr/local/clang/include/absl/container/internal/common.ho:n31n:u9l:l  note: pmacro 'ABSL_INTERNAL_IF_true' defined here,
 ui   n31t | 3#2d_etf ivn)e  {A
B      S| L                          ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Iexpanded from macro 'absl_nonnull'F
_t  r241u | e#(dieff_isnaet iasbfsile_dn,o n.n.u.l)l  i_fN_osnantuilslf
i      e| d                     ^

      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNIn file included from As2/s2builderutil_closed_set_normalizer.ccL:_18X:
(In file included from i../src/s2/s2builderutil_closed_set_normalizer.hn:s25e:
rIn file included from t../src/s2/s2builder.h_:o31r:
_In file included from a/usr/local/clang/include/absl/container/flat_hash_set.hs:s43i:
gIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.h,: 19i:
nIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:r57t:
_In file included from o/usr/local/clang/include/absl/hash/hash.hr:_89a:
sIn file included from s/usr/local/clang/include/absl/hash/internal/hash.hi:g79n:
_/usr/local/clang/include/absl/base/internal/endian.hi:m266p:l36,:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st&  ,266  | &i&n,l itnreu eu,i
n      t| 6  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4
_t   158L | o a d 6 4 ( c o n s t   v o i d *   atbrsule_,n oAnBnSuLl_lI NpT)E R{N
A      L| _                                   ^S
IN/usr/local/clang/include/absl/base/nullability.hG:L241E:_22A:R Gnote: (expanded from macro 'absl_nonnull')
);  
241       | | #                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
efi/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:e135 :a11b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onn  u135l | l   _ N o n n u l l 
t      h| i                     ^s
))) ABSL_ATTRIBUTE_LIFETIME_BOUND {             In file included from  s2/s2builderutil_closed_set_normalizer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_closed_set_normalizer.h : 25 :
 In file included from  ../src/s2/s2builder.h : 31 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h :\43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h          ^~~~:
19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull /usr/local/clang/include/absl/container/internal/raw_hash_map.h_:N161o:n52n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      |                      ^
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __In file included from as2/s2builder.cct:t113r:
iIn file included from b../src/s2/s2polygon.hu:t29e:
_In file included from _/usr/local/clang/include/absl/container/flat_hash_map.h(:(45e:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b176l:e45_:i fwarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
 ==   1760 | ,   " O n l y   l i t e r a l   ` 0 `A BiSsL _aIlNlToEwReNdA.L"_)S)I)N G{L}E
_      A| R                     ^G
());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builder.cc:113:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:23:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2builderutil_closed_set_normalizer.ccs2/s2builderutil_find_polygon_degeneracies.cc::1818:
:
In file included from In file included from ../src/s2/s2builderutil_closed_set_normalizer.h../src/s2/s2builderutil_find_polygon_degeneracies.h::2524:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2builder.h::3131:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/container/flat_hash_set.h::4343:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::1919:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5957:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/hash/hash.h::9489:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/hash/internal/hash.h::3179:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/internal/endian.h::103326::
20:/usr/local/clang/include/absl/base/internal/unaligned_access.h :39warning: :45type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1033 |   void    W39a | iitn(lMiuntee xu*i natb1s6l__tno nUnnuallli gmnue)d L{o
a      d| 1                   ^6
(co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22v:o inote: dexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bps)l _{n
o      n| n                                            ^u
ll _Non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _In file included from Ns2/s2builderutil_closed_set_normalizer.cco:n18n:
uIn file included from l../src/s2/s2builderutil_closed_set_normalizer.hl:
25      :
| In file included from                      ^../src/s2/s2builder.h
:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::DuratIn file included from is2/s2builderutil_find_polygon_degeneracies.cco:n18 :
tIn file included from i../src/s2/s2builderutil_find_polygon_degeneracies.hm:e24o:
uIn file included from t../src/s2/s2builder.h): 31{:

In file included from       /usr/local/clang/include/absl/container/flat_hash_set.h| :                              ^43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/base/nullability.h::19241:
:In file included from 22/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 57:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/hash/hash.h
:89:
  In file included from 241/usr/local/clang/include/absl/hash/internal/hash.h | :#79d:
eIn file included from f/usr/local/clang/include/absl/base/internal/endian.hi:n26e:
 /usr/local/clang/include/absl/base/internal/unaligned_access.ha:b45s:l45_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull    _45N | oinnnluilnle
       u| i                     ^n
t32_t UnalignedLoad32(const void* In file included from as2/s2builderutil_closed_set_normalizer.ccb:s18l:
_In file included from n../src/s2/s2builderutil_closed_set_normalizer.ho:n25n:
uIn file included from l../src/s2/s2builder.hl: 31p:
)In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h{:
43      :
| In file included from                                             ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::24159::
22In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e1069f:i32n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n o1069n | n u lblo o_lN oWnaniutlWli
t      h| D                     ^e
adline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2builderutil_find_polygon_degeneracies.cca:b18s:
lIn file included from _../src/s2/s2builderutil_find_polygon_degeneracies.hn:o24n:
nIn file included from u../src/s2/s2builder.hl:l31 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_set.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl:
19      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inliIn file included from ns2/s2builderutil_closed_set_normalizer.cce: 18u:
iIn file included from n../src/s2/s2builderutil_closed_set_normalizer.ht:6254:
_In file included from t../src/s2/s2builder.h :U31n:
aIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.hi:g43n:
eIn file included from d/usr/local/clang/include/absl/container/hash_container_defaults.hL:o19a:
dIn file included from 6/usr/local/clang/include/absl/container/internal/hash_function_defaults.h4:(59c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94 :
vIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hi:d31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1088s:35l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul l1088  | p )  v{o
i      d|                                              ^E
nab/usr/local/clang/include/absl/base/nullability.hl:e241D:e22b:u gnote: Lexpanded from macro 'absl_nonnull'o
g(  c241o | n#sdte fcihnaer *a basbls_ln_onnunlullalb l_eN onnanmuel)l;

            | |                      ^                                  ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31In file included from :
s2/s2builderutil_find_polygon_degeneracies.ccIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h18::
43In file included from :
../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h24::
19In file included from :
../src/s2/s2builder.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h31::
59In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/strings/cord.h43::
94In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h19::
31In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/synchronization/mutex.h57::
1091In file included from :/usr/local/clang/include/absl/hash/hash.h26::89 :
In file included from warning: /usr/local/clang/include/absl/hash/internal/hash.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h :109126 | :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h :b57o:o36l:  Wwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
tCom   m57o | ni(nMluitneex *v oaibds lU_nnaolningunleld Smtuotreex1,6
(      v| o                         ^i
d*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #pd,e fuiinnet 1a6b_stl _vn)o n{n
u      l| l                                   ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnullIn file included from  s2/s2builderutil_closed_set_normalizer.cc_:N18o:
nIn file included from n../src/s2/s2builderutil_closed_set_normalizer.hu:l25l:

In file included from       ../src/s2/s2builder.h| :                     ^31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::In file included from Ps2/s2builderutil_find_polygon_degeneracies.cce:r18T:
hIn file included from r../src/s2/s2builderutil_find_polygon_degeneracies.he:a24d:
SIn file included from y../src/s2/s2builder.hn:c31h:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19n:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l57 :
sIn file included from )/usr/local/clang/include/absl/hash/hash.h;:
89      :
| In file included from                                              ^/usr/local/clang/include/absl/hash/internal/hash.h
:79:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/base/internal/endian.h241::2622:
: /usr/local/clang/include/absl/base/internal/unaligned_access.h:note: 61expanded from macro 'absl_nonnull':
36:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi   n61e |  ianblsiln_en ovnoniudl lU n_aNloingnnueldlS
t      o| r                     ^e
32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(voidIn file included from *s2/s2builderutil_closed_set_normalizer.cc :a18b:
sIn file included from l../src/s2/s2builderutil_closed_set_normalizer.h_:n25o:
nIn file included from n../src/s2/s2builder.hu:l31:
lIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hp:,43 :
uIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hn:t196:
4In file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht: 59v:
)In file included from  /usr/local/clang/include/absl/strings/cord.h{:
94      :
| In file included from                                    ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h241::110922::34 : note: warning: expanded from macro 'absl_nonnull'
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  241 | # d1109e | f i neex palbiscli_tn oMnuntuelxlL o_cNkoMnanyublel(
M      u| t                     ^e
x* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inIn file included from ls2/s2builderutil_closed_set_normalizer.cci:n18e:
 In file included from u../src/s2/s2builderutil_closed_set_normalizer.hi:n25t:
1In file included from 6../src/s2/s2builder.h_:t31 :
LIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.ha:d431:
6In file included from (/usr/local/clang/include/absl/container/hash_container_defaults.hc:o19n:
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :v59o:
iIn file included from d/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n1212u:l52l:  pwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{
      |                                    ^ 
1212 | b/usr/local/clang/include/absl/base/nullability.ho:o241l: 22C:o nnote: dexpanded from macro 'absl_nonnull'i
ti  o241n | :#:dCeafsitnAen daCbaslll_Mneotnhnoudl(lc o_nNsotn nCuolnld
i      t| i                     ^o
n* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_find_polygon_degeneracies.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_find_polygon_degeneracies.hl:l24
:
      In file included from | ../src/s2/s2builder.h                     ^:
31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnulIn file included from ls2/s2builderutil_closed_set_normalizer.cc :p18,:
 In file included from u../src/s2/s2builderutil_closed_set_normalizer.hi:n25t:
1In file included from 6../src/s2/s2builder.h_:t31 :
vIn file included from )/usr/local/clang/include/absl/container/flat_hash_set.h :{43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h                          ^:
19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/base/nullability.h::59241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  241/usr/local/clang/include/absl/synchronization/mutex.h | :#1221d:e54f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl _1221n | obnonoull lC o_nNdointniuolnl:
:      C| a                     ^s
tAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2builderutil_find_polygon_degeneracies.cc22::18 :
In file included from note: ../src/s2/s2builderutil_find_polygon_degeneracies.hexpanded from macro 'absl_nonnull':
24:
In file included from   ../src/s2/s2builder.h241: | 31#:
dIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hf:i43n:
eIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o57n:
nIn file included from u/usr/local/clang/include/absl/hash/hash.hl:l89 :
_In file included from N/usr/local/clang/include/absl/hash/internal/hash.ho:n79n:
u/usr/local/clang/include/absl/base/internal/endian.hl:l168
:      36| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2builderutil_closed_set_normalizer.cc#:d18e:
fIn file included from i../src/s2/s2builderutil_closed_set_normalizer.hn:e25 :
aIn file included from b../src/s2/s2builder.hs:l31_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h :_19N:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T*In file included from  s2/s2builderutil_find_polygon_degeneracies.cca:b18s:
lIn file included from _../src/s2/s2builderutil_find_polygon_degeneracies.hn:u24l:
lIn file included from a../src/s2/s2builder.hb:i31l:
iIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.hy:_43u:
nIn file included from k/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19w:
nIn file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,:
57      :
| In file included from            ^/usr/local/clang/include/absl/hash/hash.h
:89:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/hash/internal/hash.h::24179::
22:/usr/local/clang/include/absl/base/internal/endian.h :172note: :expanded from macro 'absl_nonnull'27
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de  f172i | nien laibnsel _vnooindn uSltlo r_eN3o2n(nvuolild
*       | a                     ^b
sl_nonIn file included from ns2/s2builderutil_closed_set_normalizer.ccu:l18l:
 In file included from p../src/s2/s2builderutil_closed_set_normalizer.h,: 25u:
iIn file included from n../src/s2/s2builder.ht:3312:
_In file included from t/usr/local/clang/include/absl/container/flat_hash_set.h :v43):
 In file included from {/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
                          ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2294::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
/usr/local/clang/include/absl/synchronization/mutex.h  :2411230 | :#34d:e fwarning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
e a b1230s | l _ n o nbnouolll  (_*Naobnsnlu_lnlo
n      n| u                     ^l
l func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
In file included from   s2/s2builderutil_find_polygon_degeneracies.cc289: | 18#:
dIn file included from e../src/s2/s2builderutil_find_polygon_degeneracies.hf:i24n:
eIn file included from  ../src/s2/s2builder.ha:b31s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:i19l:
iIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hy:_57u:
nIn file included from k/usr/local/clang/include/absl/hash/hash.hn:o89w:
nIn file included from  /usr/local/clang/include/absl/hash/internal/hash.h_:N79u:
l/usr/local/clang/include/absl/base/internal/endian.hl:_176u:n36s:p ewarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
fie  d176
 |       i| n                                 ^l
ine uint64_t LoaIn file included from ds2/s2builderutil_closed_set_normalizer.cc6:418(:
cIn file included from o../src/s2/s2builderutil_closed_set_normalizer.hn:s25t:
 In file included from v../src/s2/s2builder.ho:i31d:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19n:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l59 :
pIn file included from )/usr/local/clang/include/absl/strings/cord.h :{94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                   ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::1231241::822::  warning: note: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

   2411231 |  | # d e f iTn*e  aabbssll__nnuolnlnaublill i_tNyo_nunnuklnlo
w      n|                       ^a
rg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknowIn file included from ns2/s2builderutil_find_polygon_degeneracies.cc :_18N:
uIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.hl:_24u:
nIn file included from s../src/s2/s2builder.hp:e31c:
iIn file included from f/usr/local/clang/include/absl/container/flat_hash_set.hi:e43d:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                                 ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2builderutil_closed_set_normalizer.cc22::18 :
In file included from note: ../src/s2/s2builderutil_closed_set_normalizer.hexpanded from macro 'absl_nonnull':
25:
In file included from   ../src/s2/s2builder.h241: | 31#:
dIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hf:i43n:
eIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o59n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1241
:      12| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inlineIn file included from  s2/s2builderutil_closed_set_normalizer.ccu:i18n:
tIn file included from 1../src/s2/s2builderutil_closed_set_normalizer.h6:_25t:
 In file included from L../src/s2/s2builder.ho:a31d:
1In file included from 6/usr/local/clang/include/absl/container/flat_hash_set.h(:c43o:
nIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.ht: 19v:
oIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hd:*59 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 1279p:)35 :{ 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                   ^
 /usr/local/clang/include/absl/base/nullability.h1279: | 241v:o22i:d  note: Rexpanded from macro 'absl_nonnull'e
gi  s241t | e#rdMeuftienxeP raobfsill_enro(nvnouildl  (_*Naobnsnlu_lnlo
n      n| u                     ^l
l fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2builderutil_find_polygon_degeneracies.cce: 18a:
bIn file included from s../src/s2/s2builderutil_find_polygon_degeneracies.hl:_24n:
oIn file included from n../src/s2/s2builder.hn:u31l:
lIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.h_:N43o:
nIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hu:l19l:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :                     ^57
:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inliIn file included from ns2/s2builderutil_closed_set_normalizer.cce: 18v:
oIn file included from i../src/s2/s2builderutil_closed_set_normalizer.hd: 25S:
tIn file included from o../src/s2/s2builder.hr:e311:
6In file included from (/usr/local/clang/include/absl/container/flat_hash_set.hv:o43i:
dIn file included from */usr/local/clang/include/absl/container/hash_container_defaults.h :a19b:
sIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:n59o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
 In file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31u:
i/usr/local/clang/include/absl/synchronization/mutex.hn:t12931:633_:t  warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
       | 1293                          ^ | 
vo/usr/local/clang/include/absl/base/nullability.hi:d241 :R22e:g inote: sexpanded from macro 'absl_nonnull't
er  M241u | t#edxeTfriancee ra(bvsoli_dn o(n*naublsll __nNoonnnnuullll 
f      n| )                     ^(
const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2builderutil_find_polygon_degeneracies.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.h :_24N:
oIn file included from n../src/s2/s2builder.hn:u31l:
lIn file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h      :| 43                     ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from In file included from s2/s2builderutil_closed_set_normalizer.cc/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::1857:
:
In file included from In file included from ../src/s2/s2builderutil_closed_set_normalizer.h/usr/local/clang/include/absl/hash/hash.h::2589:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/hash/internal/hash.h::3179:
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/base/internal/endian.h::43258:
:In file included from 36/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from /usr/local/clang/include/absl/strings/cord.h  :25894 | :
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hl:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :u1293i:n62t:3 2warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 Lo a1293d | 3v2o(icdo nRsetg ivsotiedr*M uatbesxlT_rnaocnenru(lvlo ipd)  ({*
a      b| s                                   ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: fexpanded from macro 'absl_nonnull'n
)(  c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_ Nmosngn,u
l      l| 
                                                             ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builderutil_find_polygon_degeneracies.ccs2/s2builderutil_closed_set_normalizer.cc::1818:
:
In file included from In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h../src/s2/s2builderutil_closed_set_normalizer.h::2425:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2builder.h::3131:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/container/flat_hash_set.h::4343:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/hash_container_defaults.h::1919:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::5759:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/strings/cord.h::8994:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::7931:
:
/usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/synchronization/mutex.h::2621294::2762::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1294262 |  |  i n l i n e   v o i d   S t o r e 3 2 ( v o i d *   a b s l _ n o n n u l l   p ,   u i n t 3 2 _cto nvs)t  {v
o      i| d                          ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241o | b#jd,e
f      i| n                                                             ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:In file included from 18s2/s2builderutil_find_polygon_degeneracies.cc:
:In file included from 18../src/s2/s2builderutil_closed_set_normalizer.h:
:In file included from 25../src/s2/s2builderutil_find_polygon_degeneracies.h:
:In file included from 24../src/s2/s2builder.h:
:In file included from 31../src/s2/s2builder.h:
:In file included from 31/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 57/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/hash/hash.h:
:In file included from 89/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/hash/internal/hash.h:
:79/usr/local/clang/include/absl/synchronization/mutex.h:
:1309/usr/local/clang/include/absl/base/internal/endian.h::35266:: 36:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 |   v266o | iidn lRiengei sutienrtC6o4n_dtV aLroTarda6c4e(rc(ovnositd  v(o*iadb*s la_bnsoln_nnuolnln uflnl) (p
)       | {                                  ^

      |                                    ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |    In file included from  s2/s2builderutil_find_polygon_degeneracies.ccc:o18n:
sIn file included from t../src/s2/s2builderutil_find_polygon_degeneracies.h :c24h:
aIn file included from r../src/s2/s2builder.h*: 31a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hl:_43n:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l:
lIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hm:s57g:
,In file included from  /usr/local/clang/include/absl/hash/hash.hc:o89n:
sIn file included from t/usr/local/clang/include/absl/hash/internal/hash.h :v79o:
i/usr/local/clang/include/absl/base/internal/endian.hd:*270 :a27b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u270l | li nclvi)n)e; 
v      o| i                ^d
 S/usr/local/clang/include/absl/base/nullability.ht:o241r:e226:4 (note: vexpanded from macro 'absl_nonnull'o
id  *241  | a#bdself_innoen naublsll _pn,o nuniunltl6 4__Nto nvn)u l{l

            | |                           ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2builderutil_closed_set_normalizer.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2builderutil_closed_set_normalizer.h241: | 25#:
dIn file included from e../src/s2/s2builder.hf:i31n:
eIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19n:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l59 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
31      :
/usr/local/clang/include/absl/synchronization/mutex.h| :                     ^1310
:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
In file included from s2/s2builderutil_closed_set_normalizer.cc:   1878:
 | In file included from  ../src/s2/s2builderutil_closed_set_normalizer.h: 25 :
 In file included from  ../src/s2/s2builder.h :_31_:
aIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.ht:r43i:
bIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.ht:e19_:
_In file included from (/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:(59e:
n/usr/local/clang/include/absl/strings/cord.ha:b927l:e43_:i fwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
 ==   0927, |   " O n l y   l i t e r a l   ` 0 `   i s   a l l o w e d . " ) ) )C o{r}d
R      e| p                     ^*
 absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2builderutil_find_polygon_degeneracies.cc1514: | 18 :
 In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h :c24o:
rIn file included from d../src/s2/s2builder.h_:i31n:
tIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hr:n43a:
lIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h::C19o:
rIn file included from d/usr/local/clang/include/absl/container/internal/hash_function_defaults.hR:e57p:
*In file included from  /usr/local/clang/include/absl/hash/hash.ha:b89s:
lIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hn:o90n:
nu/usr/local/clang/include/absl/strings/string_view.hl:l53 :t54r:e ewarning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
{
      |                             ^
   53 | /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:e xnote: pexpanded from macro 'absl_nonnull'r
 s  t241r | i#ndge_fviineew  aNbuslll_SnaofnenSutlrli n_gNVoinenwu(lclo
n      s| t                     ^ 
char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] boolIn file included from  s2/s2builderutil_get_snapped_winding_delta.ccS:i50m:
pIn file included from l../src/s2/s2builderutil_get_snapped_winding_delta.he:A24t:
oIn file included from d../src/s2/s2builder.h(:a31b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h:::43s:
tIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.hi:n19g:
_In file included from v/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:e57w:
 In file included from s/usr/local/clang/include/absl/hash/hash.ht:r89,:
 In file included from d/usr/local/clang/include/absl/hash/internal/hash.ho:u79b:
lIn file included from e/usr/local/clang/include/absl/base/internal/endian.h*: 26a:
b/usr/local/clang/include/absl/base/internal/unaligned_access.hs:l39_:n45o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l ou   t39) | ;i
n      l| i                                                             ^n
e /usr/local/clang/include/absl/base/nullability.hu:i241n:t221:6 _note: texpanded from macro 'absl_nonnull' 
Un  a241l | i#gdneefdiLnoea da1b6s(lc_onnosntn uvloli d_*N oanbnsull_ln
o      n| n                     ^u
ll p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2builderutil_closed_set_normalizer.cc
:18:
  In file included from 241../src/s2/s2builderutil_closed_set_normalizer.h | :#25d:
eIn file included from f../src/s2/s2builder.hi:n36e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 70_:
NIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:n198u:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.h
:      116| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      In file included from | s2/s2builderutil_get_snapped_winding_delta.cc                                                           ^:
50:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builderutil_get_snapped_winding_delta.h::24124::
22In file included from :../src/s2/s2builder.h :31note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43  :
241In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h#:d19e:
fIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e57 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:n79u:
lIn file included from l/usr/local/clang/include/absl/base/internal/endian.h :_26N:
o/usr/local/clang/include/absl/base/internal/unaligned_access.hn:n45u:l45l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   45 | inline uint32_t UnaligIn file included from ns2/s2builderutil_closed_set_normalizer.cce:d18L:
oIn file included from a../src/s2/s2builderutil_closed_set_normalizer.hd:3252:
(In file included from c../src/s2/s2builder.ho:n36s:
tIn file included from  ../src/s2/mutable_s2shape_index.hv:o30i:
dIn file included from */usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n70o:
nIn file included from n/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
 In file included from p/usr/local/clang/include/absl/strings/str_cat.h): 116{:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                                            ^23
:
/usr/local/clang/include/absl/strings/numbers.h:/usr/local/clang/include/absl/base/nullability.h112::24144::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 112# | d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from In file included from s2/s2builderutil_closed_set_normalizer.cc/usr/local/clang/include/absl/hash/hash.h::1889:
:
In file included from In file included from ../src/s2/s2builderutil_closed_set_normalizer.h/usr/local/clang/include/absl/hash/internal/hash.h::2579:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/base/internal/endian.h::3626:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::3051:
:In file included from 45/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h   :51198 | :
iIn file included from n/usr/local/clang/include/absl/strings/str_cat.hl:i116n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hu:i23n:
t/usr/local/clang/include/absl/strings/numbers.h6:4116_:t55 :U nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
igne  d116L | o a d 6 4 ( c o n s t   v o i d *   a b s l _ n o n n u l l   p )   { 
        |                                              ^ 
 a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::i nnote: texpanded from macro 'absl_nonnull'1
28  *241  | a#bdself_innoen naulbsl_nonnlu lolu t_)N;o
n      n| u                                                      ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.ccIn file included from :s2/s2builderutil_get_snapped_winding_delta.cc18::
50In file included from :
../src/s2/s2builderutil_closed_set_normalizer.hIn file included from :../src/s2/s2builderutil_get_snapped_winding_delta.h25::
24In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2builder.h36::
31In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h30::
43In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h66::
19In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h70::
57In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :/usr/local/clang/include/absl/hash/hash.h198::
89In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h116::
79In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :/usr/local/clang/include/absl/base/internal/endian.h23::
26:
/usr/local/clang/include/absl/strings/numbers.h:/usr/local/clang/include/absl/base/internal/unaligned_access.h118::5756::36 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118    | 57  |  i n l i n e   v o i d   U n a l i g n e d S t o r e 1 6 ( v o i d *   a b s la_bnsoln:n:uuliln tp1,2 8u*i natb1s6l__tn ovn)n u{l
l       | o                                   ^u
t)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22                                                       ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UIn file included from ns2/s2builderutil_closed_set_normalizer.cca:l18i:
gIn file included from n../src/s2/s2builderutil_closed_set_normalizer.he:d25S:
tIn file included from o../src/s2/s2builder.hr:e363:
2In file included from (../src/s2/mutable_s2shape_index.hv:o30i:
dIn file included from */usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n70o:
nIn file included from n/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
 In file included from p/usr/local/clang/include/absl/strings/str_cat.h,: 116u:
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:3232:
_/usr/local/clang/include/absl/strings/numbers.ht: 152v:)37 :{ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                   ^

/usr/local/clang/include/absl/base/nullability.h:241:  22152: |  vnote: oexpanded from macro 'absl_nonnull'i
d   P241u | t#TdweofDiingei tasb(suli_nnto3n2n_utl li ,_ Ncohnanru*l la
b      s| l                     ^_
nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2builderutil_get_snapped_winding_delta.ccn:u50l:
lIn file included from 
../src/s2/s2builderutil_get_snapped_winding_delta.h      :| 24                     ^:

In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36In file included from :s2/s2builderutil_closed_set_normalizer.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from    ../src/s2/s2builder.h65: | 36i:
nIn file included from l../src/s2/mutable_s2shape_index.hi:n30e:
 In file included from v/usr/local/clang/include/absl/container/btree_map.ho:i66d:
 In file included from U/usr/local/clang/include/absl/container/internal/btree.hn:a70l:
iIn file included from g/usr/local/clang/include/absl/container/internal/layout.hn:e198d:
SIn file included from t/usr/local/clang/include/absl/strings/str_cat.ho:r116e:
6In file included from 4/usr/local/clang/include/absl/strings/internal/stringify_sink.h(:v23o:
i/usr/local/clang/include/absl/strings/numbers.hd:*156 :a55b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l156l |  bpo,o lu isnatf6e4__stt rvt)o 8{_
b      a| s                                   ^e
(a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::s tnote: rexpanded from macro 'absl_nonnull'i
ng  _241v | i#edwe ftienxet ,a bisnlt_8n_otn*n ualbls l__Nnoonnnnuullll
       v| a                     ^l
ue,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTIn file included from rs2/s2builderutil_get_snapped_winding_delta.cci:p50D:
oIn file included from u../src/s2/s2builderutil_get_snapped_winding_delta.hb:l24e:
TIn file included from o../src/s2/s2builder.hB:u31f:
fIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hr:(43d:
oIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hb:l19e:
 In file included from d/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,: 57c:
hIn file included from a/usr/local/clang/include/absl/hash/hash.hr:*89 :
aIn file included from b/usr/local/clang/include/absl/hash/internal/hash.hs:l79_:
n/usr/local/clang/include/absl/base/internal/endian.ho:n160n:u36l:l  warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ffer  )160; | 
i      n| l      ^i
ne/usr/local/clang/include/absl/base/nullability.h :u241i:n22t:1 6note: _expanded from macro 'absl_nonnull't
 L  o241a | d#1d6e(fcionnes ta bvsoli_dn*o nanbuslll_ n_oNnonnunlull lp
)       | {                     ^

      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2builderutil_closed_set_normalizer.cc22::18 :
In file included from note: ../src/s2/s2builderutil_closed_set_normalizer.hexpanded from macro 'absl_nonnull':
25:
In file included from   ../src/s2/s2builder.h241: | 36#:
dIn file included from e../src/s2/mutable_s2shape_index.hf:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198 :
_In file included from N/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:
23      :
| /usr/local/clang/include/absl/strings/numbers.h                     ^:
182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(dIn file included from os2/s2builderutil_get_snapped_winding_delta.ccu:b50l:
eIn file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.hd:,24 :
cIn file included from h../src/s2/s2builder.ha:r31*:
 In file included from a/usr/local/clang/include/absl/container/flat_hash_set.hb:s43l:
_In file included from n/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19n:
uIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl: 57b:
uIn file included from f/usr/local/clang/include/absl/hash/hash.hf:e89r:
)In file included from ;/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
                                                           ^
/usr/local/clang/include/absl/base/internal/endian.h:164/usr/local/clang/include/absl/base/nullability.h::27241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241164 |  | #idnelifnien ev oaibds lS_tnoornen1u6l(lv o_iNdo*n naublsll
_      n| o                     ^n
null p, uint16_t v) {
      | In file included from                           ^s2/s2builderutil_closed_set_normalizer.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builderutil_closed_set_normalizer.h::24125::
22In file included from :../src/s2/s2builder.h :36note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/mutable_s2shape_index.h:30  :
241In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d66e:
fIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:e70 :
aIn file included from b/usr/local/clang/include/absl/container/internal/layout.hs:l198_:
nIn file included from o/usr/local/clang/include/absl/strings/str_cat.hn:n116u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h :_23N:
o/usr/local/clang/include/absl/strings/numbers.hn:n183u:l7l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* abIn file included from ss2/s2builderutil_get_snapped_winding_delta.ccl:_50n:
oIn file included from n../src/s2/s2builderutil_get_snapped_winding_delta.hn:u24l:
lIn file included from  ../src/s2/s2builder.hb:u31f:
fIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hr:)43;:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :      ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/base/nullability.h::57241:
:In file included from 22/usr/local/clang/include/absl/hash/hash.h:: 89:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/hash/internal/hash.h
:79:
  241/usr/local/clang/include/absl/base/internal/endian.h | :#168d:e36f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l168_ | nionnlniunlel  u_iNnotn3n2u_ltl 
L      o| a                     ^d
32(consIn file included from ts2/s2builderutil_closed_set_normalizer.cc :v18o:
iIn file included from d../src/s2/s2builderutil_closed_set_normalizer.h*: 25a:
bIn file included from s../src/s2/s2builder.hl:_36n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hp:)66 :
{In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                                   ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'absl_nonnull':
23:
  /usr/local/clang/include/absl/strings/numbers.h241: | 183#:d58e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s183l | _cnhoanrn*u lalb s_lN_onnonnunlull
l       | R                     ^o
undTripFloatToBuffer(float f, char* absl_nonnull bIn file included from us2/s2builderutil_get_snapped_winding_delta.ccf:f50e:
rIn file included from )../src/s2/s2builderutil_get_snapped_winding_delta.h;:
24      :
| In file included from                                                          ^../src/s2/s2builder.h
:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h241::4322:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h:note: 19expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  57241:
 | In file included from #/usr/local/clang/include/absl/hash/hash.hd:e89f:
iIn file included from n/usr/local/clang/include/absl/hash/internal/hash.he: 79a:
b/usr/local/clang/include/absl/base/internal/endian.hs:l172_:n27o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _  N172o | ninnulliln
e       | v                     ^o
id Store32(void* abslIn file included from _s2/s2builderutil_closed_set_normalizer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_closed_set_normalizer.hl:l25 :
pIn file included from ,../src/s2/s2builder.h :u36i:
nIn file included from t../src/s2/mutable_s2shape_index.h3:230_:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hv:)66 :
{In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                          ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'absl_nonnull':
23:
  /usr/local/clang/include/absl/strings/numbers.h241: | 191#:d42e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s191l | _snioznen_utl lS i_xNDoingnull
      | i                     ^t
sToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2builderutil_get_snapped_winding_delta.cc :50note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2builderutil_get_snapped_winding_delta.h:24  :
241In file included from  | ../src/s2/s2builder.h#:d31e:
fIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hn:e43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n57u:
lIn file included from l/usr/local/clang/include/absl/hash/hash.h :_89N:
oIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hn:u79l:
l/usr/local/clang/include/absl/base/internal/endian.h
:      176| :                     ^36
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uIn file included from is2/s2builderutil_closed_set_normalizer.ccn:t186:
4In file included from _../src/s2/s2builderutil_closed_set_normalizer.ht: 25L:
oIn file included from a../src/s2/s2builder.hd:6364:
(In file included from c../src/s2/mutable_s2shape_index.ho:n30s:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hv:o66i:
dIn file included from */usr/local/clang/include/absl/container/internal/btree.h :a70b:
sIn file included from l/usr/local/clang/include/absl/container/internal/layout.h_:n198o:
nIn file included from n/usr/local/clang/include/absl/strings/str_cat.hu:l116l:
 In file included from p/usr/local/clang/include/absl/strings/internal/stringify_sink.h): 23{:

/usr/local/clang/include/absl/strings/numbers.h      :| 198                                   ^:
7: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 198expanded from macro 'absl_nonnull' | 
ch  a241r | *# daebfsiln_en oanbnsull_ln oFnansutlIln t_TNooBnunfuflelr
(      i| n                     ^t
32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2builderutil_get_snapped_winding_delta.ccf:i50n:
eIn file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.ha:b24s:
lIn file included from _../src/s2/s2builder.hn:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43 :
_In file included from N/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19n:
uIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:
57      :
| In file included from                      ^/usr/local/clang/include/absl/hash/hash.h
:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180In file included from :s2/s2builderutil_closed_set_normalizer.cc27::18 :
In file included from warning: ../src/s2/s2builderutil_closed_set_normalizer.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/s2builder.h:  36180:
 | In file included from i../src/s2/mutable_s2shape_index.hn:l30i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :v66o:
iIn file included from d/usr/local/clang/include/absl/container/internal/btree.h :S70t:
oIn file included from r/usr/local/clang/include/absl/container/internal/layout.he:61984:
(In file included from v/usr/local/clang/include/absl/strings/str_cat.ho:i116d:
*In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n198o:n53n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
p,   u198i | ncth6a4r_*t  avb)s l{_
n      o| n                          ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241F:a22s:t Inote: nexpanded from macro 'absl_nonnull't
To  B241u | f#fdeerf(iinnet 3a2b_stl _in,o ncnhualrl*  _aNbosnln_unloln
n      u| l                     ^l
 buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2builderutil_get_snapped_winding_delta.cc241: | 50#:
dIn file included from e../src/s2/s2builderutil_get_snapped_winding_delta.hf:i24n:
eIn file included from  ../src/s2/s2builder.ha:b31s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hn:o43n:
nIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19 :
_In file included from N/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:n57n:
uIn file included from l/usr/local/clang/include/absl/hash/hash.hl:
89      :
| In file included from                      ^/usr/local/clang/include/absl/hash/internal/hash.h
:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(constIn file included from  s2/s2builderutil_closed_set_normalizer.ccv:o18i:
dIn file included from *../src/s2/s2builderutil_closed_set_normalizer.h :a25b:
sIn file included from l../src/s2/s2builder.h_:n36o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from p/usr/local/clang/include/absl/container/btree_map.h): 66{:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                   ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'absl_nonnull':
23:
  /usr/local/clang/include/absl/strings/numbers.h241: | 203#:d5e:f iwarning: n'diagnose_if' is a clang extension [-Wgcc-compat]e
 ab  s203l | _ n o n nAuBlSlL __INNoTnEnRuNlAlL
_      N| E                     ^E
D_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  In file included from 251s2/s2builderutil_get_snapped_winding_delta.cc | : 50 :
_In file included from _../src/s2/s2builderutil_get_snapped_winding_delta.ha:t24t:
rIn file included from i../src/s2/s2builder.hb:u31t:
eIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.h_:(43(:
dIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.ha:g19n:
oIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:_57i:
fIn file included from (/usr/local/clang/include/absl/hash/hash.h_:_89b:
uIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hl:t79i:
n/usr/local/clang/include/absl/base/internal/endian.h_:o254b:j27e:c twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ize  (254O | bijn,l i0n)e  <v oNi,d  \S
t      o| r                 ^e
16(void* abslIn file included from _s2/s2builderutil_closed_set_normalizer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_closed_set_normalizer.hl:l25 :
pIn file included from ,../src/s2/s2builder.h :u36i:
nIn file included from t../src/s2/mutable_s2shape_index.h1:630_:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hv:)66 :
{In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                          ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'absl_nonnull':
23:
  /usr/local/clang/include/absl/strings/numbers.h241: | 204#:d7e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s204l | _cnhoanrn*u lalb s_lN_onnonnunlull
l       | F                     ^a
stIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^In file included from 
s2/s2builderutil_get_snapped_winding_delta.cc:50/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2builderutil_get_snapped_winding_delta.h::2224::
 In file included from ../src/s2/s2builder.hnote: :expanded from macro 'absl_nonnull'31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h  :24143 | :
#In file included from d/usr/local/clang/include/absl/container/hash_container_defaults.he:f19i:
nIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :a57b:
sIn file included from l/usr/local/clang/include/absl/hash/hash.h_:n89o:
nIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hu:l79l:
 /usr/local/clang/include/absl/base/internal/endian.h_:N258o:n36n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  258 | inline In file included from us2/s2builderutil_closed_set_normalizer.cci:n18t:
3In file included from 2../src/s2/s2builderutil_closed_set_normalizer.h_:t25 :
LIn file included from o../src/s2/s2builder.ha:d363:
2In file included from (../src/s2/mutable_s2shape_index.hc:o30n:
sIn file included from t/usr/local/clang/include/absl/container/btree_map.h :v66o:
iIn file included from d/usr/local/clang/include/absl/container/internal/btree.h*: 70a:
bIn file included from s/usr/local/clang/include/absl/container/internal/layout.hl:_198n:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hn:u116l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hp:)23 :
{/usr/local/clang/include/absl/strings/numbers.h
:      204| :                                   ^54
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 204expanded from macro 'absl_nonnull' | 
ch  a241r | *# daebfsiln_en oanbnsull_ln oFnansutlIln t_TNooBnnuulflf
e      r| (                     ^u
int64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2builderutil_get_snapped_winding_delta.ccd:e50f:
iIn file included from n../src/s2/s2builderutil_get_snapped_winding_delta.he: 24a:
bIn file included from s../src/s2/s2builder.hl:_31n:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h_:N19o:
nIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l57l:

In file included from       /usr/local/clang/include/absl/hash/hash.h| :                     ^89
:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* abIn file included from ss2/s2builderutil_closed_set_normalizer.ccl:_18n:
oIn file included from n../src/s2/s2builderutil_closed_set_normalizer.hn:u25l:
lIn file included from  ../src/s2/s2builder.hp:,36 :
uIn file included from i../src/s2/mutable_s2shape_index.hn:t303:
2In file included from _/usr/local/clang/include/absl/container/btree_map.ht: 66v:
)In file included from  /usr/local/clang/include/absl/container/internal/btree.h{:
70      :
| In file included from                           ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h241::11622:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h:note: 23expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/strings/numbers.h:  205241: | 5#:d ewarning: f'diagnose_if' is a clang extension [-Wgcc-compat]i
ne   a205b | s l _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lN
E      E| D                     ^_
MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 | In file included from  s2/s2builderutil_get_snapped_winding_delta.cc :_50_:
aIn file included from t../src/s2/s2builderutil_get_snapped_winding_delta.ht:r24i:
bIn file included from u../src/s2/s2builder.ht:e31_:
_In file included from (/usr/local/clang/include/absl/container/flat_hash_set.h(:d43i:
aIn file included from g/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19s:
eIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:f57(:
_In file included from _/usr/local/clang/include/absl/hash/hash.hb:u89i:
lIn file included from t/usr/local/clang/include/absl/hash/internal/hash.hi:n79_:
o/usr/local/clang/include/absl/base/internal/endian.hb:j266e:c36t:_ swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]z
e(O  b266j | ,i n0l)i n<e  Nu,i n\t
6      4| _                 ^t
 Load64(constIn file included from  s2/s2builderutil_closed_set_normalizer.ccv:o18i:
dIn file included from *../src/s2/s2builderutil_closed_set_normalizer.h :a25b:
sIn file included from l../src/s2/s2builder.h_:n36o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from p/usr/local/clang/include/absl/container/btree_map.h): 66{:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                   ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/base/nullability.h::198241:
:In file included from 22/usr/local/clang/include/absl/strings/str_cat.h:: 116:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23:
  241/usr/local/clang/include/absl/strings/numbers.h | :#206d:e7f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l206_ | ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^F
astIntToBuffer(int128 i, char* absl_nonnull bufIn file included from fs2/s2builderutil_get_snapped_winding_delta.cce:r50):

In file included from       ../src/s2/s2builderutil_get_snapped_winding_delta.h| :      ^24
:
In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/base/nullability.h::31241:
:In file included from 22/usr/local/clang/include/absl/container/flat_hash_set.h:: 43:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
  In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | :#57d:
eIn file included from f/usr/local/clang/include/absl/hash/hash.hi:n89e:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
_/usr/local/clang/include/absl/base/internal/endian.hn:o270n:n27u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nonn  u270l | li
n      l| i                     ^n
e void StorIn file included from es2/s2builderutil_closed_set_normalizer.cc6:418(:
vIn file included from o../src/s2/s2builderutil_closed_set_normalizer.hi:d25*:
 In file included from a../src/s2/s2builder.hb:s36l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 66p:
,In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | c huairn*t 6a4b_stl _vn)o n{n
u      l| l                          ^ 
Fas/usr/local/clang/include/absl/base/nullability.ht:I241n:t22T:o Bnote: uexpanded from macro 'absl_nonnull'f
fe  r241( | i#ndte1f2i8n ei ,a bcshla_rn*o nanbuslll_ n_oNnonnunlull lb
u      f| f                     ^e
r)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                In file included from  s2/s2builderutil_closed_set_normalizer.cc :T18*:
 In file included from a../src/s2/s2builderutil_closed_set_normalizer.hb:s25l:
_In file included from n../src/s2/s2builder.hu:l36l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e33 :
eIn file included from n../src/s2/base/commandlineflags.hd:)21 :
nIn file included from o/usr/local/clang/include/absl/flags/flag.he:x40c:
ep/usr/local/clang/include/absl/flags/commandlineflag.ht: 163{:
56      :|                      ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23: note:   expanded from macro 'absl_nullable'163
 |     257b | o#odle fPianres eaFbrsolm_(naublslla:b:lset r_iNnugl_lvaibelwe 
v      a| l                      ^u
e, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnuIn file included from ls2/s2builderutil_lax_polygon_layer.ccl: 18d:
sIn file included from t../src/s2/s2builderutil_lax_polygon_layer.h): 40c:
oIn file included from n../src/s2/base/logging.hs:t21 :
=In file included from  /usr/local/clang/include/absl/log/check.h0:;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                          ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::24141::
22In file included from :/usr/local/clang/include/absl/log/internal/strip.h :note: 26expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/log_message.h  :24147 | :
#In file included from d/usr/local/clang/include/absl/log/internal/structured_proto.he:f27i:
nIn file included from e/usr/local/clang/include/absl/log/internal/proto.h :a34b:
s/usr/local/clang/include/absl/types/span.hl:_794n:o8n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _No  n794n | u l l 
       T| *                     ^ 
absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2builderutil_find_polygon_degeneracies.cc27::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h23::
24In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2builder.h67::
31:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/flat_hash_set.h::14943::
13In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :19warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from   /usr/local/clang/include/absl/crc/internal/crc_cord_state.h149: | 23:
cIn file included from o/usr/local/clang/include/absl/crc/crc32c.hn:s32t:
 In file included from c/usr/local/clang/include/absl/strings/str_format.hh:a84r:
*In file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.ha:b24s:
lIn file included from _/usr/local/clang/include/absl/container/inlined_vector.hn:o56n:
nIn file included from u/usr/local/clang/include/absl/container/internal/inlined_vector.hl:l35 :
Make/usr/local/clang/include/absl/types/span.hC:h733e:c31k:F awarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
Strin  g733( | 
c      o| n            ^s
texp/usr/local/clang/include/absl/base/nullability.hr: 241S:p22a:n <note: Texpanded from macro 'absl_nonnull'>
 M  a241k | e#Sdpeafni(nTe*  aabbssll__nnounlnlualbll e_ Npotnrn uAlBlS
L      _| A                     ^T
TRIBUTE_LIFIn file included from Es2/s2builderutil_closed_set_normalizer.ccT:I18M:
EIn file included from _../src/s2/s2builderutil_closed_set_normalizer.hB:O25U:
NIn file included from D../src/s2/s2builder.h,:
36      :
| In file included from                               ^../src/s2/mutable_s2shape_index.h
:41:
In file included from ../src/s2/s2cell_id.h/usr/local/clang/include/absl/base/nullability.h::43257:
:In file included from 23../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2point.h
:27:
  In file included from 257../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 /usr/local/clang/include/absl/status/internal/status_internal.ha:b150s:l25_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
able   150_ | N u l l acbolnes
t       | a                      ^b
sl::Status* absl_nonnull status, const char* absl_nonnull prIn file included from es2/s2builderutil_find_polygon_degeneracies.ccf:i18x:
)In file included from ;../src/s2/s2builderutil_find_polygon_degeneracies.h
:      24| :
                        ^In file included from 
../src/s2/s2builder.h:31/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/flat_hash_set.h::2243::
 In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hnote: :expanded from macro 'absl_nonnull'19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h  :24159 | :
#In file included from /usr/local/clang/include/absl/strings/cord.hd:e82f:
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.he: 23a:
bIn file included from s/usr/local/clang/include/absl/crc/crc32c.hl:_32n:
oIn file included from n/usr/local/clang/include/absl/strings/str_format.hn:u84l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.h_:N24o:
nIn file included from n/usr/local/clang/include/absl/container/inlined_vector.hu:l56l:

In file included from       /usr/local/clang/include/absl/container/internal/inlined_vector.h| :                     ^35
:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2builderutil_closed_set_normalizer.cc739: | 18S:
pIn file included from a../src/s2/s2builderutil_closed_set_normalizer.hn:<25T:
>In file included from  ../src/s2/s2builder.hM:a36k:
eIn file included from S../src/s2/mutable_s2shape_index.hp:a41n:
(In file included from T../src/s2/s2cell_id.h*: 43a:
bIn file included from s../src/s2/s1angle.hl:_28n:
uIn file included from l../src/s2/s2point.hl:a27b:
lIn file included from e../src/s2/s2coder.h :b23e:
gIn file included from i/usr/local/clang/include/absl/status/status.hn: 67A:
B/usr/local/clang/include/absl/status/internal/status_internal.hS:L150_:A58T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE_  L150I | F E T I McEo_nBsOtU NaDb,s
l      :| :                    ^S
ta/usr/local/clang/include/absl/base/nullability.ht:u257s:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf isntea taubss,l _cnounlslta bclhea r_*N ualblsalb_lneo
n      n| u                      ^l
l prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2builderutil_find_polygon_degeneracies.cc::2218::
 In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.hnote: :expanded from macro 'absl_nonnull'24
:
In file included from ../src/s2/s2builder.h  :24131 | :
#In file included from d/usr/local/clang/include/absl/container/flat_hash_set.he:f43i:
nIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h :a19b:
In file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:_59n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u82l:
lIn file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/crc/crc32c.hu:l32l:

In file included from       /usr/local/clang/include/absl/strings/str_format.h| :                     ^84
:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_closed_set_normalizer.cc:18:
In file included from ../src/s2/s2builderutil_closed_set_normalizer.h:25:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2builderutil_lax_polygon_layer.cc241: | 18#:
dIn file included from e../src/s2/s2builderutil_lax_polygon_layer.hf:i40n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_op.ho:n41n:
uIn file included from l/usr/local/clang/include/absl/log/internal/strip.hl:
26      :
|                      ^
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2builderutil_find_polygon_degeneracies.cc319: | 18 :
 In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h :c24o:
nIn file included from s../src/s2/s2builder.ht: 31w:
cIn file included from h/usr/local/clang/include/absl/container/flat_hash_set.ha:r43_:
tIn file included from */usr/local/clang/include/absl/container/hash_container_defaults.h :a19b:
sIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:n59u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94l:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31n:
s/usr/local/clang/include/absl/synchronization/mutex.ht:&550 :v64):; 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                   ^
  550/usr/local/clang/include/absl/base/nullability.h | : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b lbea s_eN_uilnltaebrlnea
l      :| :                      ^P
erThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2builderutil_lax_polygon_layer.ccl:l18
:
      In file included from | ../src/s2/s2builderutil_lax_polygon_layer.h                     ^:
40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: In file included from warning: s2/s2builderutil_find_polygon_degeneracies.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:  24321:
 | In file included from i../src/s2/s2builder.hn:l31i:
nIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.h :L43o:
gIn file included from M/usr/local/clang/include/absl/container/hash_container_defaults.he:s19s:
aIn file included from g/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:&59 :
LIn file included from o/usr/local/clang/include/absl/strings/cord.hg:M94e:
sIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ha:g31e:
:/usr/local/clang/include/absl/synchronization/mutex.h::o551p:e40r:a twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
<<(  w551c | h a rs_ttatic *b oaobls lD_encurlelmaebnlteS yvn)c h{S
e      m| (                                                   ^M
ut/usr/local/clang/include/absl/base/nullability.he:x257*: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle fmiun,e
       a| b                                       ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
_N  u241l | l#adbelfei
n      e|                        ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2builderutil_lax_polygon_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_lax_polygon_layer.h_:N40o:
nIn file included from n../src/s2/base/logging.hu:l21l:

In file included from       /usr/local/clang/include/absl/log/check.h| :                     ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46:In file included from  s2/s2builderutil_find_polygon_degeneracies.ccwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24  :
340In file included from  | ../src/s2/s2builder.h : 31f:
rIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.he:n43d:
 In file included from v/usr/local/clang/include/absl/container/hash_container_defaults.ho:i19d:
 In file included from A/usr/local/clang/include/absl/container/internal/hash_function_defaults.hb:s59l:
FIn file included from o/usr/local/clang/include/absl/strings/cord.hr:m94a:
tIn file included from F/usr/local/clang/include/absl/strings/internal/cordz_info.hl:u31s:
h/usr/local/clang/include/absl/synchronization/mutex.h(:S556t:r38i:n gwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ySin  k556* |   a bvsoli_dn oLnoncuklSll oswiLnoko,p
(      S| y                                             ^n
chW/usr/local/clang/include/absl/base/nullability.ha:i241t:P22a:r anote: mexpanded from macro 'absl_nonnull's
*   a241b | s#ld_enfoinnneu lalb swla_intopn,n uill n_tN ofnlnauglsl)
;      
|                            ^| 
                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullIn file included from as2/s2builderutil_lax_polygon_layer.ccb:l18e:

In file included from       ../src/s2/s2builderutil_lax_polygon_layer.h| :                      ^40
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 398s2/s2builderutil_find_polygon_degeneracies.cc | : 18 :
 In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.hv:o24i:
dIn file included from *../src/s2/s2builder.h :a31b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h_:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.ha:b19l:
eIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hc:o59n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h&: 94v:
)In file included from ;/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
          ^/usr/local/clang/include/absl/synchronization/mutex.h
:565:/usr/local/clang/include/absl/base/nullability.h36::257 :23warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
  565   | 257  |  #vdoeifdi nUen laobcsklS_lnouwl(lSaybnlceh W_aNiutlPlaarbalmes
*       | a                      ^b
sl_nullable waitp) ABSL_ATTIn file included from Rs2/s2builderutil_lax_polygon_layer.ccI:B18U:
TIn file included from E../src/s2/s2builderutil_lax_polygon_layer.h_:C40O:
LIn file included from D../src/s2/base/logging.h;:
21      :
| In file included from                                    ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h257::2123:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nullable'41
:
In file included from   /usr/local/clang/include/absl/log/internal/strip.h257: | 26#:
d/usr/local/clang/include/absl/log/internal/log_message.he:f400i:n17e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n  u400l | l a b l ec o_nNsutl lvaobilde*
       a| b                      ^s
l_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NIn file included from us2/s2builderutil_find_polygon_degeneracies.ccl:l18a:
bIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.he:
24      :
| In file included from                       ^../src/s2/s2builder.h
:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreaIn file included from ds2/s2builderutil_get_snapped_winding_delta.ccS:y50n:
cIn file included from h../src/s2/s2builderutil_get_snapped_winding_delta.h*: 24a:
bIn file included from s../src/s2/s2builder.hl:_31n:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hs:)19;:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :                                                ^59
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::82241:
:In file included from 22/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:: 23:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/crc/crc32c.h
:32:
  In file included from 241/usr/local/clang/include/absl/strings/str_format.h | :#84d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/str_format/bind.hi:n29e:
 a/usr/local/clang/include/absl/strings/internal/str_format/parser.hb:s227l:_11n:o nwarning: n'enable_if' is a clang extension [-Wgcc-compat]u
ll _  N227o | n n u l l 
        |                       ^ 
 enable_if(str_formIn file included from as2/s2builderutil_find_polygon_degeneracies.cct:_18i:
nIn file included from t../src/s2/s2builderutil_find_polygon_degeneracies.he:r24n:
aIn file included from l../src/s2/s2builder.h:::31E:
nIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hu:r43e:
CIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:s19t:
eIn file included from x/usr/local/clang/include/absl/container/internal/hash_function_defaults.hp:r59(:
fIn file included from o/usr/local/clang/include/absl/strings/cord.hr:m94a:
tIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h,:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h          ^:
578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:  229578: | 11 :  vwarning: o'enable_if' is a clang extension [-Wgcc-compat]i
d B  l229o | c k ( b a s e _ i n teenranballe:_:iPfe(rsTthrIn file included from r_efas2/s2builderutil_lax_polygon_layer.ccodr:Smy18an:
tcIn file included from h../src/s2/s2builderutil_lax_polygon_layer.h*_: ia40nbt:
seIn file included from lr_../src/s2/base/logging.hnn:aol21n::
n:In file included from uV/usr/local/clang/include/absl/log/check.hall:li d37sF:
)o;rIn file included from 
m/usr/local/clang/include/absl/log/internal/check_impl.h      a:| t                                            ^21I
:
mIn file included from /usr/local/clang/include/absl/base/nullability.hp/usr/local/clang/include/absl/log/internal/check_op.h:l:241<41:C:
22.In file included from :./usr/local/clang/include/absl/log/internal/strip.h .:note: >expanded from macro 'absl_nonnull'26(
f:
  o241r/usr/local/clang/include/absl/log/internal/log_message.h | m:#a425d:e31f:i ntwarning: e)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] ,a

b      s| l          ^_
n  o425n | n u lLlo g_MNeosnsnauglelF
a      t| a                     ^l
(const char* absl_nIn file included from os2/s2builderutil_find_polygon_degeneracies.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.h :f24i:
lIn file included from e../src/s2/s2builder.h,: 31i:
nIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.h :l43i:
nIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h): 19A:
BIn file included from S/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:_59A:
TIn file included from T/usr/local/clang/include/absl/strings/cord.hR:I94B:
UIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hE:_31C:
O/usr/local/clang/include/absl/synchronization/mutex.hL:D580;:
34      :|                                ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22  :580  | note:  expanded from macro 'absl_nonnull' 
ba  s241e | _#idnetfeirnnea la:b:sPle_rnTohnrneualdlS y_nNcohn*n ualbls
l      _| n                     ^u
llable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2builderutil_lax_polygon_layer.ccf:i18n:
eIn file included from  ../src/s2/s2builderutil_lax_polygon_layer.ha:b40s:
lIn file included from _../src/s2/base/logging.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/log/check.hb:l37e:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:u21l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hb:l41e:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                      ^26
:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: In file included from warning: s2/s2builderutil_find_polygon_degeneracies.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h  :42624 | :
 In file included from  ../src/s2/s2builder.hL:o31g:
MIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hs:s43a:
gIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hF:a19t:
aIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h(:c59o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht: 94c:
hIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hr:*31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s581l:_38n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll fil  e581, |   i n t   l ibnaes,e
_      i| n                              ^t
er/usr/local/clang/include/absl/base/nullability.hn:a241l::22::P enote: rexpanded from macro 'absl_nonnull'T
hr  e241a | d#Sdyenfcihn*e  aabbssll__nnoonnnnuullll  w_)N;o
n      n| u                                     ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2builderutil_lax_polygon_layer.ccd:e18f:
iIn file included from n../src/s2/s2builderutil_lax_polygon_layer.he: 40a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hu:l41l:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                     ^26
:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |           In file included from  s2/s2builderutil_find_polygon_degeneracies.cc : 18 :
 In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h : 24c:
oIn file included from n../src/s2/s2builder.hs:t31 :
cIn file included from h/usr/local/clang/include/absl/container/flat_hash_set.ha:r43*:
 In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:s19l:
_In file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:n59n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94f:
aIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hl:u31r:
e/usr/local/clang/include/absl/synchronization/mutex.h_:m585s:g20):  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_AT  T585R | I B UvToEi_dC OTLrDa;n
s      (| M                              ^u
Ho/usr/local/clang/include/absl/base/nullability.hw: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'
on  n241u | l#ld ehfoiwn)e;  a b/s/l _unsoendn uflolr  _CNoonndnVualrl-
>      M| u                     ^t
ex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2builderutil_get_snapped_winding_delta.ccl:
50      :
| In file included from                      ^../src/s2/s2builderutil_get_snapped_winding_delta.h
:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from In file included from s2/s2builderutil_lax_polygon_layer.cc/usr/local/clang/include/absl/strings/cord.hIn file included from ::s2/s2builderutil_find_polygon_degeneracies.cc1882::
:
18In file included from In file included from :
../src/s2/s2builderutil_lax_polygon_layer.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from ::../src/s2/s2builderutil_find_polygon_degeneracies.h4023::
:
24In file included from In file included from :
../src/s2/base/logging.h/usr/local/clang/include/absl/crc/crc32c.hIn file included from ::../src/s2/s2builder.h2132::
:
31In file included from In file included from :
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/str_format.hIn file included from ::/usr/local/clang/include/absl/container/flat_hash_set.h3784::
:
43In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:
/usr/local/clang/include/absl/log/internal/check_impl.h:In file included from :143/usr/local/clang/include/absl/container/hash_container_defaults.h21:::
1119In file included from ::
/usr/local/clang/include/absl/log/internal/check_op.h In file included from :warning: /usr/local/clang/include/absl/container/internal/hash_function_defaults.h'enable_if' is a clang extension [-Wgcc-compat]41:
:
59In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from   :/usr/local/clang/include/absl/strings/cord.h14326: | :
94 /usr/local/clang/include/absl/log/internal/log_message.h:
 :In file included from  436/usr/local/clang/include/absl/strings/internal/cordz_info.h :: 3631 ::
  /usr/local/clang/include/absl/synchronization/mutex.h warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 586e
:n43a:  b l436warning: e | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] _
 iLf  (o586sg | tM r e_vsfsoaoirgdme aDFtee_rbi(unbtgaesFrean_taailnl:t(:ecEronnnssaultr: ec:CPhoeanrsrTt*h eraxepbarsd(lSsy_)nn,c oh"*ncn oaunlbslstle _xfniporlne n,tu
rla      lp
"|       )                                   ^| ,                                          ^


      /usr/local/clang/include/absl/base/nullability.h| /usr/local/clang/include/absl/base/nullability.h          ^::
241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NN/usr/local/clang/include/absl/strings/internal/str_format/bind.hoo:nn149nnu:ul22ll:
l 
      warning:       | 'enable_if' is a clang extension [-Wgcc-compat]|                      ^
                     ^

  149 |       __attributeIn file included from _s2/s2builderutil_find_polygon_degeneracies.cc_:(18(:
eIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.ha:b24l:
eIn file included from _../src/s2/s2builder.hi:f31(:
sIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.hr:_43f:
oIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.hm:a19t:
_In file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:t59e:
rIn file included from n/usr/local/clang/include/absl/strings/cord.ha:l94::
:In file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hn:s31u:
r/usr/local/clang/include/absl/synchronization/mutex.he:In file included from C590s2/s2builderutil_lax_polygon_layer.cco:n:40s18:t:
 eIn file included from warning: x../src/s2/s2builderutil_lax_polygon_layer.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p:
r40(:
  sIn file included from 590)../src/s2/base/logging.h | , :
 21      e:
| xIn file included from                      ^p/usr/local/clang/include/absl/log/check.h
l:i37c:
iIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :M21u:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_op.hx:(41c:
oIn file included from n/usr/local/clang/include/absl/log/internal/strip.hs:t26 :
v/usr/local/clang/include/absl/log/internal/log_message.ho:l446a:t43i:/usr/local/clang/include/absl/strings/internal/str_format/bind.hl :ewarning: 158 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:M
22u:t   ewarning: x'enable_if' is a clang extension [-Wgcc-compat]446*
  | a b   sL158ol | _g nM eus ls l aag eb_Ql_ueai t/et*triligybnuDotreebeu_d_g*F(/(a)et na{al}b
(l      ce| o_n                                       ^is
ft( /usr/local/clang/include/absl/base/nullability.hcV:ah257la:ir23*d: F anote: bosexpanded from macro 'absl_nullable'lr
_m  an257to | In#mndpuellfl<i Afnriegl sea.b.,s.l
>_(      ns| u)                                          ^l,
l a"/usr/local/clang/include/absl/base/nullability.hbbl:aed241  _f:No22url:mla atbnote:  ltexpanded from macro 'absl_nonnull'er
a
      p|   "                      ^)241
) | )#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatIIn file included from ms2/s2builderutil_lax_polygon_layer.ccp:l18<:
AIn file included from r../src/s2/s2builderutil_lax_polygon_layer.hg:s40.:
.In file included from .../src/s2/base/logging.h>:(21s:
)In file included from ,/usr/local/clang/include/absl/log/check.h :"37b:
aIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h :f21o:
rIn file included from m/usr/local/clang/include/absl/log/internal/check_op.ha:t41 :
tIn file included from r/usr/local/clang/include/absl/log/internal/strip.ha:p26":
)/usr/local/clang/include/absl/log/internal/log_message.h):)454
:      38| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLoIn file included from cs2/s2builderutil_lax_polygon_layer.cck:(18M:
uIn file included from t../src/s2/s2builderutil_lax_polygon_layer.he:x40&:
 In file included from m../src/s2/base/logging.hu: 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
AL/usr/local/clang/include/absl/log/internal/check_op.h_:A180T:T42R:I Bwarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
E_CA  P180T | UARBESDL__BAYT(TtRhIiBsU)T,E
_      P| U                                                                   ^~~~R
E_FUNCTION const char* absl_nonnull /usr/local/clang/include/absl/synchronization/mutex.hM:a649k:e29C:h ewarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
Fail  S649t | r i negx(p
l      i| c                                         ^i
t M/usr/local/clang/include/absl/base/nullability.hu:t241e:x22L:o cnote: kexpanded from macro 'absl_nonnull'(
Mu  t241e | x#*d eafbisnle_ naobnsnlu_lnlo nmnuu,l lc o_nNsotn nCuolnld
i      t| i                     ^o
n& cond)
      | In file included from                             ^s2/s2builderutil_lax_polygon_layer.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h241::4022:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 181a:b25s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l181l |   _ N o ncnounlslt
       a| b                     ^s
l::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2builderutil_find_polygon_degeneracies.cc      :| 18                     ^:

In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: In file included from warning: s2/s2builderutil_lax_polygon_layer.cc'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from   ../src/s2/base/logging.h670: | 21 :
 In file included from e/usr/local/clang/include/absl/log/check.hx:p37l:
iIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hi:t21 :
R/usr/local/clang/include/absl/log/internal/check_op.he:a189d:e28r:M uwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
xLoc  k189( | Miuntleixn&e  mcuo nAsBtS La_bIsNlT:E:RSNtAaLt_uAsT*T RaIbBsUlT_En_oCnAnPuTlUlR EADs_SBtYa(ttuhsi(sc)o)n
s      t|                                                                           ^~~~a
bsl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #d/usr/local/clang/include/absl/synchronization/mutex.he:f678i:n35e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n678n | u l le x_pNloincniutl lR
e      a| d                     ^e
rMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUIn file included from Ns2/s2builderutil_lax_polygon_layer.ccC:T18I:
OIn file included from N../src/s2/s2builderutil_lax_polygon_layer.h(:m40u:
)In file included from 
../src/s2/base/logging.h      :| 21                                  ^:

In file included from /usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h::2221::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'193
:21:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e193  | acbosnls_tn oanbnsull:l: S_tNaotnunsu*l la
b      s| l                     ^_
nonnull AsStatus(const absl::StatusOrIn file included from <s2/s2builderutil_find_polygon_degeneracies.ccT:>18&:
 In file included from s../src/s2/s2builderutil_find_polygon_degeneracies.h): 24{:

In file included from       ../src/s2/s2builder.h| :                    ^31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/base/nullability.h::43241:
:In file included from 22/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59241:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e94f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l681_:n74o:n nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
l _No  n681n | u l le
x      p| l                     ^i
cit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBIn file included from Us2/s2builderutil_lax_polygon_layer.ccT:E18_:
CIn file included from A../src/s2/s2builderutil_lax_polygon_layer.hP:T40U:
RIn file included from E../src/s2/base/logging.hD:_21B:
YIn file included from (/usr/local/clang/include/absl/log/check.ht:h37i:
sIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h,:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                                                                         ^~~~:
202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessa/usr/local/clang/include/absl/synchronization/mutex.hg:e689B:u35i:l dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
(con  s689t |   c heaxrp*l iacbistl _RneoandneurlMlu teexxpLrotcekx(tM)u;t
e      x| *                                             ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   m241u | ,# dceofnisnte  Caobnsdli_tnioonnn&u lclo n_dN)o
n      n| u                                  ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2/s2builderutil_lax_polygon_layer.cc
:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40  :
710In file included from  | ../src/s2/base/logging.h : 21e:
xIn file included from p/usr/local/clang/include/absl/log/check.hl:i37c:
iIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :W21r:
i/usr/local/clang/include/absl/log/internal/check_op.ht:e226r:M59u:t ewarning: xtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
ock(  M226u | tveoxi&d  mMua kAeBCShLe_cIkNOTpEVRaNlAuLe_SAtTrTiRnIgB(UsTtEd_:C:AoPsTtUrReEaDm_&B Yo(st,h icso)n)s
t       | v                                                                         ^~~~o
id* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/synchronization/mutex.h  :257718 | :#35d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b718s | l _ neuxlpllaibcliet  _WNruiltlearbMluet
e      x| L                      ^o
ck(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CIn file included from As2/s2builderutil_lax_polygon_layer.ccP:T18U:
RIn file included from E../src/s2/s2builderutil_lax_polygon_layer.hD:_40B:
YIn file included from (../src/s2/base/logging.ht:h21i:
sIn file included from )/usr/local/clang/include/absl/log/check.h,:
37      :
| In file included from                                                                          ^~~~/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_n/usr/local/clang/include/absl/synchronization/mutex.hu:l731l:a35b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
pera  t731o | r < <e(xsptldi:c:iots tWrreiatme&r,M
u      t| e            ^x
Lo/usr/local/clang/include/absl/base/nullability.hc:k257(:M23u:t enote: xexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bmsul,_ ncuolnlsatb lCeo n_dNiutliloanb&l ec
o      n| d                      ^)

      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2builderutil_lax_polygon_layer.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2builderutil_lax_polygon_layer.h241: | 40#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l277l: 50_:N owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  
277       | |                       ^ 
                                   const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2builderutil_find_polygon_degeneracies.ccn:e18 :
aIn file included from b../src/s2/s2builderutil_find_polygon_degeneracies.hs:l24_:
nIn file included from u../src/s2/s2builder.hl:l31a:
bIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.he: 43_:
NIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19a:
bIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:
59      :
| In file included from                       ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2builderutil_lax_polygon_layer.cc:18  :
241In file included from  | ../src/s2/s2builderutil_lax_polygon_layer.h#:d40e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 292_:N13o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^292
 | constIn file included from  s2/s2builderutil_find_polygon_degeneracies.ccc:h18a:
rIn file included from *../src/s2/s2builderutil_find_polygon_degeneracies.h :a24b:
sIn file included from l../src/s2/s2builder.h_:n31o:
nIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hu:l43l:
 In file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hp:e19r:
aIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:r59<:
<In file included from (/usr/local/clang/include/absl/strings/cord.hs:t94d:
:In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.hb:a31s:
i/usr/local/clang/include/absl/synchronization/mutex.hc:_801o:s45t:r ewarning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]m
<cha  r801, |   T rCaointdsi>t&i,o
n      (| b            ^o
ol/usr/local/clang/include/absl/base/nullability.h :(241*:a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld effuinnce) (avbosild_*n oanbnsull_ln u_lNloanbniullilt
y      _| u                     ^n
known),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34:In file included from  s2/s2builderutil_lax_polygon_layer.ccnote: :expanded from macro 'absl_nullability_unknown'18
:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h  :28940 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:a293b:i49l:i twarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
unk  n293o | w n   _ N u l l _ u n s p e c i f i e d 
        |                                   ^ 
            conIn file included from ss2/s2builderutil_find_polygon_degeneracies.cct: 18c:
hIn file included from a../src/s2/s2builderutil_find_polygon_degeneracies.hr:*24 :
aIn file included from b../src/s2/s2builder.hs:l31_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h):;19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h                                                ^:
59:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 802#:d19e:f iwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
 ab  s802l | _ n o n n u l l   _ N o nvnouildl*
       a| b                     ^s
l_nullability_unknown argIn file included from )s2/s2builderutil_lax_polygon_layer.cc;:
18      :
| In file included from                   ^../src/s2/s2builderutil_lax_polygon_layer.h
:40/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289../src/s2/base/logging.h::3421In file included from ::
s2/s2builderutil_get_snapped_winding_delta.cc In file included from note: :/usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nullability_unknown'50:
:
37In file included from :
  ../src/s2/s2builderutil_get_snapped_winding_delta.hIn file included from 289:/usr/local/clang/include/absl/log/internal/check_impl.h | 24:#:
21dIn file included from :
e../src/s2/s2builder.hf/usr/local/clang/include/absl/log/internal/check_op.h:i:31n295:
e:In file included from  20/usr/local/clang/include/absl/container/flat_hash_set.ha::b 43swarning: :
ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from _
/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l  :
l295In file included from a | /usr/local/clang/include/absl/container/internal/hash_function_defaults.hbc:io59ln:
siIn file included from tt/usr/local/clang/include/absl/strings/cord.hy :_s82ui:
ngIn file included from kn/usr/local/clang/include/absl/crc/internal/crc_cord_state.hne:od23w :
ncIn file included from  h/usr/local/clang/include/absl/crc/crc32c.h_a:Nr32*u:
 l/usr/local/clang/include/absl/strings/str_format.hal:_b115us:ln_52sn:po enwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]cu
ilfli   eod115p
e |       r a|  t                                 ^ o
r < < (csotnds:t: bsatsri_cf_oIn file included from ors2/s2builderutil_find_polygon_degeneracies.ccsmt:rae18ta:
_mIn file included from i<../src/s2/s2builderutil_find_polygon_degeneracies.hcn:hta24re,:
r In file included from nTar../src/s2/s2builder.hla:i:t31:s:
P>In file included from &a,/usr/local/clang/include/absl/container/flat_hash_set.hr
:s      43e| :
d                   ^In file included from F
/usr/local/clang/include/absl/container/hash_container_defaults.ho:/usr/local/clang/include/absl/base/nullability.hr19:m:
a241In file included from t:/usr/local/clang/include/absl/container/internal/hash_function_defaults.hB22:a:59s :
enote: In file included from *expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h 
:a94  b:
241sIn file included from l | /usr/local/clang/include/absl/strings/internal/cordz_info.h_#:nd31oe:
nf/usr/local/clang/include/absl/synchronization/mutex.hni:un814le: l20 a:pb cswarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_
n      o| n  n                                                   ^814u
l | l  /usr/local/clang/include/absl/base/nullability.h_ :CN241oo:nn22ndu:il tlnote: iexpanded from macro 'absl_nonnull'
o
n      (  | b                     ^241o
 | o#ld e(f*ianbes la_bnsoln_nnuolnlIn file included from n ufs2/s2builderutil_lax_polygon_layer.cclu:ln18 c_:
)NIn file included from (o../src/s2/s2builderutil_lax_polygon_layer.hTn*:n ual40bl:
s
lIn file included from       _../src/s2/base/logging.h| n                     ^:u
l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hi:l37i:
tIn file included from y/usr/local/clang/include/absl/log/internal/check_impl.h_:u21n:
k/usr/local/clang/include/absl/log/internal/check_op.hn:o296w:n63):, 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                   ^
/usr/local/clang/include/absl/base/nullability.h  :296241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^c
onst sIn file included from is2/s2builderutil_find_polygon_degeneracies.ccg:n18e:
dIn file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.hc:h24a:
rIn file included from *../src/s2/s2builder.h :a31b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h_:n43o:
nIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hu:l19l:
)In file included from ;/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
                                                              ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h94::
241In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31In file included from  :
s2/s2builderutil_get_snapped_winding_delta.ccnote: /usr/local/clang/include/absl/synchronization/mutex.h:expanded from macro 'absl_nonnull':50
814:
:  In file included from 42241../src/s2/s2builderutil_get_snapped_winding_delta.h: | :# dwarning: 24type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e:

fIn file included from i../src/s2/s2builder.h  n:e814 31a | :
b s lC_oIn file included from nn/usr/local/clang/include/absl/container/flat_hash_set.hod:ni43tn:
iuIn file included from ol/usr/local/clang/include/absl/container/hash_container_defaults.hnl:( 19b_:
oNIn file included from oo/usr/local/clang/include/absl/container/internal/hash_function_defaults.hln: n59(u:
*lIn file included from al/usr/local/clang/include/absl/strings/cord.hb
:s      82l| :
_                     ^In file included from n
/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/crc/crc32c.hl: 32f:
u/usr/local/clang/include/absl/strings/str_format.hn:c155):(36T:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
slIn file included from _s2/s2builderutil_lax_polygon_layer.cc  n:155u18 | l :
l aebIn file included from xi../src/s2/s2builderutil_lax_polygon_layer.hpl:li40itc:
yi_In file included from tu../src/s2/base/logging.h nF:kon21romwa:
ntIn file included from )C/usr/local/clang/include/absl/log/check.h,o
u:      n37| t                                         ^:
C
aIn file included from p/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.ht::u21289r:
:e/usr/local/clang/include/absl/log/internal/check_op.h34(::i298 n:note: texpanded from macro 'absl_nullability_unknown'22*
 :a   bwarning: 289stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | l#
_dneof  nin298nu | el cloa bnps)sl t_:n  uupln_ls(iapb)ig l{nie}dt
y       c_h| u                                   ^an
rk*n/usr/local/clang/include/absl/base/nullability.h o:wa241bn:s 22_l:N_ unote: nloexpanded from macro 'absl_nonnull'ln
_nu  nu241sl | p#ledc eioffipineeedr 
aa      tbo| s                                 ^rl
<_<n(osntndu:l:lb aIn file included from _ss2/s2builderutil_find_polygon_degeneracies.ccNi:oc18n_:
onIn file included from su../src/s2/s2builderutil_find_polygon_degeneracies.htl:rl24e
:
a      mIn file included from | <../src/s2/s2builder.h                     ^c:
h31a:
rIn file included from ,/usr/local/clang/include/absl/container/flat_hash_set.h :T43r:
aIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.ht:s19>:
&In file included from ,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/base/nullability.hs2/s2builderutil_get_snapped_winding_delta.cc94:::
24150In file included from ::
/usr/local/clang/include/absl/strings/internal/cordz_info.h22In file included from ::../src/s2/s2builderutil_get_snapped_winding_delta.h31 ::
24note: /usr/local/clang/include/absl/synchronization/mutex.h:
expanded from macro 'absl_nonnull':In file included from 
815../src/s2/s2builder.h::  1631241::
 |  In file included from #warning: /usr/local/clang/include/absl/container/flat_hash_set.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]d:e
43f:
  iIn file included from 815n/usr/local/clang/include/absl/container/hash_container_defaults.h | e:  19 a:
 bIn file included from  s/usr/local/clang/include/absl/container/internal/hash_function_defaults.h l: _59 n:
 oIn file included from  n/usr/local/clang/include/absl/strings/cord.h n: u82 l:
lTIn file included from * /usr/local/clang/include/absl/crc/internal/crc_cord_state.h _:aN23bo:
snIn file included from ln/usr/local/clang/include/absl/crc/crc32c.hu_:ln32lu:

l/usr/local/clang/include/absl/strings/str_format.hl      :a| 164                     ^b:
i8l:i twarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
unk  n164o | w n  iIn file included from anrts2/s2builderutil_lax_polygon_layer.ccg*): ;a
18b      :
s| lIn file included from                ^_../src/s2/s2builderutil_lax_polygon_layer.h
n:/usr/local/clang/include/absl/base/nullability.ho40:n:
289nIn file included from :u../src/s2/base/logging.h34l::l21  :
note: UIn file included from expanded from macro 'absl_nullability_unknown'n/usr/local/clang/include/absl/log/check.h
u:s  e37289d:
 | (#In file included from )d /usr/local/clang/include/absl/log/internal/check_impl.he{f: i21rne:
et /usr/local/clang/include/absl/log/internal/check_op.hua:rb299ns :lp_67_n;:u  lwarning: }l
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a      
b| i       ^l
  i299/usr/local/clang/include/absl/base/nullability.ht | : y241 _ :u 22 n:k  n note:  oexpanded from macro 'absl_nonnull'w 
n     _241 N | u#ldle _f uin ns ep  ea cb is fl i _en d o
n       n | u                                  ^l 
l   _ N o n n u l l 
        |                       ^ 
   coIn file included from ns2/s2builderutil_find_polygon_degeneracies.ccs:t18 :
uIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hsIn file included from :is2/s2builderutil_get_snapped_winding_delta.cc24g::
n50In file included from e:
d../src/s2/s2builder.h In file included from c:../src/s2/s2builderutil_get_snapped_winding_delta.hh31a::
r24In file included from *:
/usr/local/clang/include/absl/container/flat_hash_set.h In file included from :a../src/s2/s2builder.h43b:s:
31lIn file included from :
_/usr/local/clang/include/absl/container/hash_container_defaults.hnIn file included from :o/usr/local/clang/include/absl/container/flat_hash_set.hn19:n:
43uIn file included from l:
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hlIn file included from ):;/usr/local/clang/include/absl/container/hash_container_defaults.h59
::
      19In file included from | :
/usr/local/clang/include/absl/strings/cord.h                                                                  ^In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h94:/usr/local/clang/include/absl/base/nullability.h:
59:In file included from :
241/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from ::/usr/local/clang/include/absl/strings/cord.h2231:::
82 /usr/local/clang/include/absl/synchronization/mutex.h:
note: :In file included from expanded from macro 'absl_nonnull'830/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
::14  23:241:
  | In file included from warning: #/usr/local/clang/include/absl/crc/crc32c.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d:e
f32i:
  n/usr/local/clang/include/absl/strings/str_format.h830e: |  165 a: b8 s: l  _warning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]obn
onou  ll165l  |  ( *_ aiNbnosntl*n_ unaolbnlsn
lu_      lnl| o                     ^ nf
nuunlcl) (pT_*; 
a      b| s       ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:i lnote: iexpanded from macro 'absl_nonnull't
y_  u241n | k#ndoewfni)n,e
       a| b             ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabiIn file included from ls2/s2builderutil_lax_polygon_layer.cci:t18y:
_In file included from u../src/s2/s2builderutil_lax_polygon_layer.hn:k40n:
oIn file included from In file included from ws2/s2builderutil_get_snapped_winding_delta.cc../src/s2/base/logging.hn: :50_21:
N:
In file included from uIn file included from ../src/s2/s2builderutil_get_snapped_winding_delta.hl/usr/local/clang/include/absl/log/check.h:l:24_37:
u:
In file included from nIn file included from ../src/s2/s2builder.hs/usr/local/clang/include/absl/log/internal/check_impl.h:p:31e21:
c:
In file included from i/usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/log/internal/check_op.hf:i:43e323:
d:In file included from 
46/usr/local/clang/include/absl/container/hash_container_defaults.h      ::|  19                                 ^warning: :

type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h  :32382 | :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hf:r23i:
eIn file included from n/usr/local/clang/include/absl/crc/crc32c.hd:In file included from  32vs2/s2builderutil_find_polygon_degeneracies.cco:
i:/usr/local/clang/include/absl/strings/str_format.hd18: :
A380In file included from b:../src/s2/s2builderutil_find_polygon_degeneracies.hs43:l:24F :
owarning: rIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m../src/s2/s2builder.ha
:t31F:
  lIn file included from u380s/usr/local/clang/include/absl/container/flat_hash_set.h | h:s(43tS:
dtIn file included from :r/usr/local/clang/include/absl/container/hash_container_defaults.h:i:sn19tg:
riIn file included from if/usr/local/clang/include/absl/container/internal/hash_function_defaults.hny:gS59i&:
 nIn file included from Sk/usr/local/clang/include/absl/strings/cord.ht*:r 94Aa:
pbIn file included from ps/usr/local/clang/include/absl/strings/internal/cordz_info.hel:n_31dn:
o/usr/local/clang/include/absl/synchronization/mutex.hFn:onru831ml:al46 t:(s siwarning: ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]nd
:k:,  s
831t       | r | i                                              ^n g
 *   a/usr/local/clang/include/absl/base/nullability.htbys:ple241_n:nao22mn:en  ualnote: blexpanded from macro 'absl_nonnull's 
ld:  s:tt,241y
p |       #e| d_                                          ^ei
dfei/usr/local/clang/include/absl/base/nullability.hnn:te241i :ta22yb:<s Tlnote: _>expanded from macro 'absl_nonnull':n
:o  nt241ny | up#ledl*e  abf_sNilno_enn unalbulslalb_lin
lo      intn| yu_l                     ^uln
 k_nNoownnn
u      l| l                                             ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2builderutil_get_snapped_winding_delta.cc :50note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2builderutil_get_snapped_winding_delta.h:24  :
241In file included from  | ../src/s2/s2builder.h#:d31e:
fIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hn:e43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :_82N:
oIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/crc/crc32c.h      :| 32                     ^:

/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int In file included from Fs2/s2builderutil_find_polygon_degeneracies.ccP:r18i:
nIn file included from t../src/s2/s2builderutil_find_polygon_degeneracies.hF:(24s:
tIn file included from d../src/s2/s2builder.h:::31F:
IIn file included from L/usr/local/clang/include/absl/container/flat_hash_set.hE:*43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :o94u:
tIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.hu:t31,:
 /usr/local/clang/include/absl/synchronization/mutex.hc:o845n:s45t:  Fwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
mat  S845p | e c < A r g sb.o.o.l> &( afbosrlm:a:tt,y
p      e| _                       ^i
den/usr/local/clang/include/absl/base/nullability.ht:i241t:y22<:T >note: :expanded from macro 'absl_nonnull':
ty  p241e | :#:d*e faibnsel _anbosnln_unloln nmueltlh o_dN)o(n)n)u;l
l      
|                                                   ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:In file included from 31s2/s2builderutil_find_polygon_degeneracies.cc:
:In file included from 18/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43../src/s2/s2builderutil_find_polygon_degeneracies.h:
:In file included from 24/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19../src/s2/s2builder.h:
:In file included from 31/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43/usr/local/clang/include/absl/strings/cord.h:
:In file included from 82/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
:In file included from 23/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/crc/crc32c.h:
:In file included from 32/usr/local/clang/include/absl/strings/cord.h:
:94/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 469/usr/local/clang/include/absl/strings/internal/cordz_info.h::2031::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :850type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
16: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]469
 | in  t850  | S N P r i n tcFo(ncshta rT**  aabbssll__nnoonnnnuullll  ooubtjpeuctt,, 
s      t| d               ^:
:s/usr/local/clang/include/absl/base/nullability.hi:z241e:_22t:  snote: iexpanded from macro 'absl_nonnull'z
e,  
241       | | #                   ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsl
l      |                      ^
_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::In file included from ts2/s2builderutil_lax_polygon_layer.ccy:p18In file included from e:
s2/s2builderutil_get_snapped_winding_delta.cc:In file included from ::../src/s2/s2builderutil_lax_polygon_layer.h50*::
 40In file included from a:
../src/s2/s2builderutil_get_snapped_winding_delta.hbIn file included from :s../src/s2/base/logging.h24l::
_21In file included from n:
../src/s2/s2builder.hoIn file included from :n/usr/local/clang/include/absl/log/check.h31n::
u37In file included from l:
/usr/local/clang/include/absl/container/flat_hash_set.hlIn file included from : /usr/local/clang/include/absl/log/internal/check_impl.h43m::
e21In file included from t:
/usr/local/clang/include/absl/container/hash_container_defaults.hh:/usr/local/clang/include/absl/log/internal/check_op.ho19d:):
428(In file included from ):/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
44:      :59|  :
                                            ^warning: In file included from 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
/usr/local/clang/include/absl/base/nullability.h::82241:
:In file included from 22/usr/local/clang/include/absl/crc/internal/crc_cord_state.h  ::428 23 | :
note: AIn file included from expanded from macro 'absl_nonnull'B/usr/local/clang/include/absl/crc/crc32c.hS
:L32  _:
A241/usr/local/clang/include/absl/strings/str_format.hT | :#T503RdI:eBf20UiT:nE e_warning:  Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aE
bTsUl  R_503Nn | So n_ nNFuoOlrlNmN Ua_LtNLRo anwnScuilnlok
(n      Ts| *                     ^t 
 acbhsalr_*n oanbnsull_ln ornIn file included from ans2/s2builderutil_find_polygon_degeneracies.ccwu:)l18 l:
  In file included from /M/a../src/s2/s2builderutil_find_polygon_degeneracies.h k:eNC24Oh:
LeIIn file included from Nc../src/s2/s2builder.hTk:
O31p      :
S| tIn file included from                    ^r/usr/local/clang/include/absl/container/flat_hash_set.h
i:n43g/usr/local/clang/include/absl/base/nullability.h(:
:
In file included from 241      /usr/local/clang/include/absl/container/hash_container_defaults.h:| :                                           ^2219
::
 In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.hnote: /usr/local/clang/include/absl/base/nullability.h:expanded from macro 'absl_nonnull':59
241:
:  In file included from 22241/usr/local/clang/include/absl/strings/cord.h: | :# 94d:
enote: In file included from expanded from macro 'absl_nonnull'f/usr/local/clang/include/absl/strings/internal/cordz_info.hi
:n31  e:
241 /usr/local/clang/include/absl/synchronization/mutex.ha | :b#855sd:le34_f:ni onwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 nau  bl855ls |   l_ N_enoxnopnlnunilculil
tl        | C                     ^_o
nNdointniuolnl(
c      o| n                     ^s
t bool* absIn file included from ls2/s2builderutil_lax_polygon_layer.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_lax_polygon_layer.hu:l40l:
 In file included from c../src/s2/base/logging.ho:n21d:
)In file included from ;/usr/local/clang/include/absl/log/check.h
:      37| :
                                 ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/check_op.h241::42922::31 :note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d429e | f i n e  Ta1b svl1_,n oTn2n uvl2l,  _cNoonnsntu lclh
a      r| *                     ^ 
absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2builderutil_find_polygon_degeneracies.ccnote: :expanded from macro 'absl_nonnull'18
:
In file included from   ../src/s2/s2builderutil_find_polygon_degeneracies.h241: | 24#:
dIn file included from e../src/s2/s2builder.hf:i31n:
eIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19n:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l59 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(conIn file included from ss2/s2builderutil_lax_polygon_layer.cct: 18T:
*In file included from  ../src/s2/s2builderutil_lax_polygon_layer.ha:b40s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
oIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hj:)21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h                              ^:
432:13/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
432 |   c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_ NMoankneuClhle
c      k| O                     ^p
String(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from In file included from ../src/s2/base/logging.hs2/s2builderutil_find_polygon_degeneracies.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2builderutil_find_polygon_degeneracies.h::3724:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2builder.h::2131:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h433::4356:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:  59433:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 896 : 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      896  |      e x p l i c i t   C o n d i t i ocno(ncsotn scth aTr**  aabbssll__nnoonnnnuullll  oebxjp)r
t      e| x                              ^t
) /usr/local/clang/include/absl/base/nullability.h{:
241      :| 22                                                       ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullablIn file included from es2/s2builderutil_lax_polygon_layer.cc
:      18| :
                      ^In file included from 
../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2builderutil_find_polygon_degeneracies.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h/usr/local/clang/include/absl/log/internal/check_op.h::24451:
:In file included from 1../src/s2/s2builder.h:: 31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from   /usr/local/clang/include/absl/container/hash_container_defaults.h451: | 19A:
BIn file included from S/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:_59L:
OIn file included from G/usr/local/clang/include/absl/strings/cord.h_:I94N:
TIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hR:N31A:
L/usr/local/clang/include/absl/synchronization/mutex.h_:D923E:F48I:N Ewarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]M
AKE  _923C | H E C K _ O P _ S T R I N G _ E X T E R N ( b o o l ) ; 
        | c^o
ns/usr/local/clang/include/absl/log/internal/check_op.ht: 449C:o31n:d inote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
on*   449a | b s le_xntuelrlna btleem pbl)a;t
e       | c                                               ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 257c:h23a:r *note:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  MaabkselC_hneuclklOapbSlter i_nNgu(l l a b\l
e      
|                                     ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc24::
18In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h31::
40In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :../src/s2/base/logging.h43::
21In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :/usr/local/clang/include/absl/log/check.h19::
37In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h59::
21In file included from :
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h::94451:
:In file included from 1/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:948/usr/local/clang/include/absl/log/internal/check_op.h::10450:: 25warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  948   | 450  |   b o o l   (x*,a bxs,l _cnounlslta bclIn file included from hes2/s2builderutil_get_snapped_winding_delta.cca r:e*50v :
aaIn file included from lb../src/s2/s2builderutil_get_snapped_winding_delta.h_s:)l24(_:
cnIn file included from oo../src/s2/s2builder.hnn:ns31ut:
 lIn file included from Cl/usr/local/clang/include/absl/container/flat_hash_set.ho):n
43d      :
i| In file included from t                        ^/usr/local/clang/include/absl/container/hash_container_defaults.hi
:o19n/usr/local/clang/include/absl/base/nullability.h:
*:In file included from  241/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha::b2259s::
l In file included from _note: /usr/local/clang/include/absl/strings/cord.hnexpanded from macro 'absl_nonnull':o
82n:
  nIn file included from 241u/usr/local/clang/include/absl/crc/internal/crc_cord_state.h | l:#ld23)e:
f iIn file included from =n/usr/local/clang/include/absl/crc/crc32c.h e:n 32au:
lb/usr/local/clang/include/absl/strings/str_format.hls:pl860_tn:ro43;n:n
 u      warning: l| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l         ^
 
_N  /usr/local/clang/include/absl/base/nullability.ho860:n | 257n : u23lf:rl i
note: eexpanded from macro 'absl_nullable'      n
d|                       ^  v
257o | i#dd eAfbisnleF oarbmsalt_Fnluulslha(bFloer m_aNtuSlilnakb*l ea
b      In file included from s| s2/s2builderutil_lax_polygon_layer.ccl                      ^_:
n18o:
nIn file included from nIn file included from ../src/s2/s2builderutil_lax_polygon_layer.hus2/s2builderutil_find_polygon_degeneracies.ccl::l4018 :
:
sIn file included from In file included from i../src/s2/base/logging.h../src/s2/s2builderutil_find_polygon_degeneracies.hn::k2124,:
:

In file included from In file included from       /usr/local/clang/include/absl/log/check.h../src/s2/s2builder.h| ::                                          ^3731
:
:
In file included from In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/flat_hash_set.h:::2412143::
:
22/usr/local/clang/include/absl/log/internal/check_op.hIn file included from ::/usr/local/clang/include/absl/container/hash_container_defaults.h 452:note: :19expanded from macro 'absl_nonnull'1:

:In file included from    /usr/local/clang/include/absl/container/internal/hash_function_defaults.h241warning: : | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]59#
:
dIn file included from e/usr/local/clang/include/absl/strings/cord.h  f:452i94n | :
eAIn file included from  B/usr/local/clang/include/absl/strings/internal/cordz_info.haS:bL31s_:
lL/usr/local/clang/include/absl/synchronization/mutex.h_O:nG948o_:nI48Nn:uT lEwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R 
N_ANL  o_948nD | nE Fu lIbNloE
_o      Ml| A                      ^K(
E*_aCbHsElC_Kn_uOlPl_aSbTlReI NeGv_aEIn file included from lXs2/s2builderutil_get_snapped_winding_delta.cc_T:)E50(R:
cNIn file included from o(../src/s2/s2builderutil_get_snapped_winding_delta.hin:sn24tt:
 6In file included from C4../src/s2/s2builder.ho_:nt31d):
i;In file included from t
/usr/local/clang/include/absl/container/flat_hash_set.hi      :o| 43n^:
*
In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha/usr/local/clang/include/absl/log/internal/check_op.h:b:19s449:
l:In file included from _31/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn::o 59nnote: :
nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from u
/usr/local/clang/include/absl/strings/cord.hl:l  82)449:
  | In file included from = /usr/local/clang/include/absl/crc/internal/crc_cord_state.h  :ne23ux:
ltIn file included from le/usr/local/clang/include/absl/crc/crc32c.hrp:tn32r :
;t/usr/local/clang/include/absl/strings/str_format.he
:m      867p| :                                               ^l60
a:t/usr/local/clang/include/absl/base/nullability.h e:warning:  241ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:o
n22s:  t 867 note:  | expanded from macro 'absl_nonnull'c 
 h  ae241xr | *p# ldieacfibitns eFl oa_rbnmosalnt_Snniounlnknl(u sltMlr _a_fNokornemnCauthl_eli
cn      kt| eO                     ^rp
nSatlr:i:nFgo(r m a In file included from t\s2/s2builderutil_find_polygon_degeneracies.ccS
:i      18n| :
k                              ^In file included from I
../src/s2/s2builderutil_find_polygon_degeneracies.hm:p/usr/local/clang/include/absl/base/nullability.h24l::
*241In file included from  :../src/s2/s2builder.ha22:b:31s :
lnote: In file included from _expanded from macro 'absl_nonnull'n/usr/local/clang/include/absl/container/flat_hash_set.h
o:n  43n241:
u | In file included from l#/usr/local/clang/include/absl/container/hash_container_defaults.hld: e19sf:
i)In file included from 
n/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      e:|  59                                                           ^a:

bIn file included from s/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.hl::_24194n::
o22In file included from n:/usr/local/clang/include/absl/strings/internal/cordz_info.hn :u31note: l:
expanded from macro 'absl_nonnull'l/usr/local/clang/include/absl/synchronization/mutex.h
 :  _951241N: | o9#n:nd euwarning: lftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]li
n
e         | 951                     ^a | b
 s lv_oniodn*n ualbls l__NIn file included from nous2/s2builderutil_lax_polygon_layer.ccnl:nlu18al:
bllIn file included from 
e../src/s2/s2builderutil_lax_polygon_layer.h       :40:
aIn file included from ../src/s2/base/logging.hr:21g:
_In file included from  /usr/local/clang/include/absl/log/check.h=:|  37n                     ^u:

lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hp:t21r:
;/usr/local/clang/include/absl/log/internal/check_op.h
:      452| :        ^1
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
:23/usr/local/clang/include/absl/log/internal/check_op.h::In file included from  450s2/s2builderutil_get_snapped_winding_delta.ccnote: ::expanded from macro 'absl_nullable'2550
::
   In file included from 257note: ../src/s2/s2builderutil_get_snapped_winding_delta.h | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':#
24d:
eIn file included from f  ../src/s2/s2builder.hi450:n | 31e :
  In file included from a /usr/local/clang/include/absl/container/flat_hash_set.h b :s 43xl:
_,In file included from  nx/usr/local/clang/include/absl/container/hash_container_defaults.hu,:l 19lc:
oaIn file included from nbs/usr/local/clang/include/absl/container/internal/hash_function_defaults.htl:e 59 c:
h_aIn file included from Nr/usr/local/clang/include/absl/strings/cord.hu*:l 82la:
abIn file included from bs/usr/local/clang/include/absl/crc/internal/crc_cord_state.hll:e_23
n:
      oIn file included from n| /usr/local/clang/include/absl/crc/crc32c.hn                      ^u:l
32l:
)/usr/local/clang/include/absl/strings/str_format.h
:      869| :                        ^40
:In file included from  /usr/local/clang/include/absl/base/nullability.hwarning: s2/s2builderutil_find_polygon_degeneracies.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:241
18::
22  In file included from :869../src/s2/s2builderutil_find_polygon_degeneracies.h  | : note: 24expanded from macro 'absl_nonnull' :
s
In file included from t../src/s2/s2builder.h  r:241_31 | f:
o#In file included from rd/usr/local/clang/include/absl/container/flat_hash_set.hme:fa43ti:
n_eIn file included from i /usr/local/clang/include/absl/container/hash_container_defaults.hna:tb19es:
rlIn file included from n_/usr/local/clang/include/absl/container/internal/hash_function_defaults.han:lo59:n:
n:In file included from uF/usr/local/clang/include/absl/strings/cord.hlo:lr 94_mN:
oaIn file included from tn/usr/local/clang/include/absl/strings/internal/cordz_info.hSn:iu31nl:
k/usr/local/clang/include/absl/synchronization/mutex.hlI:m
954p      :l| 52*                     ^: 
 awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o954n | n u lslt astiinck _b;o
o      l|                                         ^C
all/usr/local/clang/include/absl/base/nullability.hV:In file included from o241s2/s2builderutil_lax_polygon_layer.cci:d:22P18:t:
 rIn file included from note: F../src/s2/s2builderutil_lax_polygon_layer.hexpanded from macro 'absl_nonnull'u:
n40  c:
241tIn file included from  | i../src/s2/base/logging.h#od:ne(21fci:
onIn file included from nes/usr/local/clang/include/absl/log/check.h t:a b37Csol:
_nnIn file included from doi/usr/local/clang/include/absl/log/internal/check_impl.hntn:iuo21ln:
l* /usr/local/clang/include/absl/log/internal/check_op.h _:aN453bo:snl1n_u:nlol n
nwarning:       utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| l                     ^
l
 c  )453; | 
A      B| S                                                   ^L
_L/usr/local/clang/include/absl/base/nullability.hO:G241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241D | E#FdIeNfEi_nMeA KaEb_sClH_EnCoKn_nOuPl_lS T_RNIoNnGn_uElXlT
E      R| N                     ^(
uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: In file included from note: s2/s2builderutil_find_polygon_degeneracies.ccexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
18  :
449In file included from  | ../src/s2/s2builderutil_find_polygon_degeneracies.h : 24e:
xIn file included from t../src/s2/s2builder.he:r31n:
 In file included from t/usr/local/clang/include/absl/container/flat_hash_set.he:m43p:
lIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.ht:e19 :
cIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:s59t:
 In file included from c/usr/local/clang/include/absl/strings/cord.hh:a94r:
*In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n956o:n52n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Make  C956h | e c ksOtpaSttirci nbgo(o l   C\a
s      t| A                              ^n
dC/usr/local/clang/include/absl/base/nullability.ha:l241l:F22u:n cnote: texpanded from macro 'absl_nonnull'i
on  (241c | o#ndsetf iCnoen daibtsilo_nn*o nanbuslll_ n_oNnonnunlull lc
)      ;| 
                     ^      
|                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2builderutil_lax_polygon_layer.cc:  18241:
 | In file included from #../src/s2/s2builderutil_lax_polygon_layer.hd:e40f:
iIn file included from n../src/s2/base/logging.he: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h :_453N:o1n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      /usr/local/clang/include/absl/log/internal/check_op.h| :                     ^450
:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x,In file included from  s2/s2builderutil_find_polygon_degeneracies.ccc:o18n:
sIn file included from t../src/s2/s2builderutil_find_polygon_degeneracies.h :c24h:
aIn file included from r../src/s2/s2builder.h*: 31a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hl:_43n:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l:
lIn file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
                        ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h94::
241In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
958:  50241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin  e958  | a b sslt_antoincn ublolo l_ NCoansntuAlnld
C      a| l                     ^l
Method(const Condition* abslIn file included from _s2/s2builderutil_lax_polygon_layer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_lax_polygon_layer.hl:l40 :
cIn file included from )../src/s2/base/logging.h;:
21      :
| In file included from                                                  ^/usr/local/clang/include/absl/log/check.h
:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h::2221::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'454
:1  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n454e |  AaBbSsLl__LnOoGn_nIuNlTlE R_NNAoLn_nDuElFlI
N      E| _                     ^M
AKE_CHECK_OP_STRINIn file included from Gs2/s2builderutil_find_polygon_degeneracies.cc_:E18X:
TIn file included from E../src/s2/s2builderutil_find_polygon_degeneracies.hR:N24(:
fIn file included from l../src/s2/s2builder.ho:a31t:
)In file included from ;/usr/local/clang/include/absl/container/flat_hash_set.h
:      43| :
^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 449/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::3159::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :44931 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :e961x:34t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
tem  p961l | a t es tcaotnisc boto lc hCaarl*l BaybRself_(ncoonnnsutl lT *M aakbesClh_encoknOnpuSltlr isnegl(f )   {\

            | |                                  ^                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25:In file included from  s2/s2builderutil_find_polygon_degeneracies.ccnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'18
:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h  :45024 | :
 In file included from  ../src/s2/s2builder.h : 31 :
 In file included from x/usr/local/clang/include/absl/container/flat_hash_set.h,: 43x:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hc:o19n:
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :c59h:
aIn file included from r/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n975u:l31l:) 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                        ^

/usr/local/clang/include/absl/base/nullability.h  :975241 | : 22 :i nnote: lexpanded from macro 'absl_nonnull'i
ne   241v | o#idde fRienaed Caablsllb_ancokn(nTu*l la b_sNlo_nnnounlnlu
l      l|                       ^c
allback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2builderutil_lax_polygon_layer.cc :note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2builderutil_lax_polygon_layer.h  :24140 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u455l:l1 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l455
 |       A| B                     ^S
L_LOG_INTERNAL_DEFIIn file included from Ns2/s2builderutil_find_polygon_degeneracies.ccE:_18M:
AIn file included from K../src/s2/s2builderutil_find_polygon_degeneracies.hE:_24C:
HIn file included from EC../src/s2/s2builder.hK:_31O:
PIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hS:T43R:
IIn file included from N/usr/local/clang/include/absl/container/hash_container_defaults.hG:_19E:
XIn file included from T/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:R59N:
(In file included from d/usr/local/clang/include/absl/strings/cord.ho:u94b:
lIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h):;31
:
      /usr/local/clang/include/absl/synchronization/mutex.h| :^979
:43:/usr/local/clang/include/absl/log/internal/check_op.h :warning: 449type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
31: note:   expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'979
 |     s449t | a t iecx tbeoronl  tAelmwpalyastTer uceo(ncsotn scth aCro*n daibtsilo_nn*o nanbuslll_ nMualkleaCbhleec)k O{p Srtertiunrgn(  t r u\e
;       | }                              ^

      | /usr/local/clang/include/absl/base/nullability.h                                          ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 257:note: 23expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_SIn file included from Ts2/s2builderutil_find_polygon_degeneracies.ccR:I18N:
GIn file included from _../src/s2/s2builderutil_find_polygon_degeneracies.hE:X24T:
EIn file included from R../src/s2/s2builder.hN:(31c:
hIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.hr:)43;:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :^19
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::44959::
31In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31449:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 1033e:x20t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
tem p1033l | a t ev ociodn sWta icth(aMru*t eaxb*s la_bnsoln_nnuolnln uMlalk emCuh)e c{k
O      p| S                   ^t
rin/usr/local/clang/include/absl/base/nullability.hg:(241 : 22 :\ 
      note: | expanded from macro 'absl_nonnull'                              ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18In file included from :
s2/s2builderutil_find_polygon_degeneracies.ccIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h18::
40In file included from :
../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from :../src/s2/base/logging.h24::
21In file included from :
../src/s2/s2builder.hIn file included from :/usr/local/clang/include/absl/log/check.h31::
37In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h43::
21In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/log/internal/check_op.h::19456:
:In file included from 1/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/log/internal/check_op.h94::
450In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h25::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
1050:31  :450  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     x1050, |   x ,b ocooln sWta icthWairt*h Taibmselo_unto(nMnuutlelx)*
       a| b                        ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'm
u,   241a | b#sdle:f:iDnuer aatbisoln_ ntoinmneuolult )_ N{o
n      n| u                              ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_lax_polygon_layer.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_lax_polygon_layer.hl:l40
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_In file included from Is2/s2builderutil_find_polygon_degeneracies.ccN:T18E:
RIn file included from N../src/s2/s2builderutil_find_polygon_degeneracies.hA:L24_:
DIn file included from E../src/s2/s2builder.hF:I31N:
EIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hM:A43K:
EIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hC:H19E:
CIn file included from K/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:O59P:
_In file included from S/usr/local/clang/include/absl/strings/cord.hT:R94I:
NIn file included from G/usr/local/clang/include/absl/strings/internal/cordz_info.h_:E31X:
T/usr/local/clang/include/absl/synchronization/mutex.hE:R1069N:(32u:n swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
n e1069d |   c hbaoro)l; 
W      a| i^t
Wi/usr/local/clang/include/absl/log/internal/check_op.ht:h449D:e31a:d lnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e(M  u449t | e x *e xatbesrln_ ntoenmnpullalt em uc,o nasbts lc:h:aTri*m ea bdsela_dnloinnneu)l l{ 
M      a| k                               ^e
Ch/usr/local/clang/include/absl/base/nullability.he:c241k:O22p:S tnote: rexpanded from macro 'absl_nonnull'i
ng  (241  |  # d\e
f      i| n                              ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18In file included from :
s2/s2builderutil_find_polygon_degeneracies.ccIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h18::
40In file included from :
../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from :../src/s2/base/logging.h24::
21In file included from :
../src/s2/s2builder.hIn file included from :/usr/local/clang/include/absl/log/check.h31::
37In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h43::
21In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/log/internal/check_op.h::19457:
:In file included from 1/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h::94450:
:In file included from 25/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
/usr/local/clang/include/absl/synchronization/mutex.h:1088  :45035 | :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  x ,1088  | x ,  vcooinds tE ncahbalre*D eabbusglL_ongo(ncnounlslt) 
c      h| a                        ^r
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #ndaemfei)n;e
       a| b                                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'_
No  n257n | u#ldle
f      i| n                     ^e
 absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PIn file included from es2/s2builderutil_lax_polygon_layer.ccr:T18h:
rIn file included from e../src/s2/s2builderutil_lax_polygon_layer.ha:d40S:
yIn file included from n../src/s2/base/logging.hc:h21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l458 :s1):; 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                             ^
/usr/local/clang/include/absl/base/nullability.h  :458241 | :A22B:S Lnote: _expanded from macro 'absl_nonnull'L
OG  _241I | N#TdEeRfNiAnLe_ DaEbFsIlN_En_oMnAnKuEl_lC H_ENCoKn_nOuPl_lS
T      R| I                     ^N
G_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |    In file included from  s2/s2builderutil_find_polygon_degeneracies.cc : 18x:
,In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.hx:,24 :
cIn file included from o../src/s2/s2builder.hn:s31t:
 In file included from c/usr/local/clang/include/absl/container/flat_hash_set.hh:a43r:
*In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o59n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94):

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                        ^31
:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::2411109::2234::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241 |  #1109d | e f ienxep laibcsilt_ nMountneuxlLlo c_kNMoanynbuel(lM
u      t| e                     ^x
* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2/s2builderutil_lax_polygon_layer.cc:18  :
257In file included from  | ../src/s2/s2builderutil_lax_polygon_layer.h#:d40e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e459 :_1N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble
        459|  |                       ^A
BSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OIn file included from Ps2/s2builderutil_find_polygon_degeneracies.cc_:S18T:
RIn file included from I../src/s2/s2builderutil_find_polygon_degeneracies.hN:G24_:
EIn file included from X../src/s2/s2builder.hT:E31R:
NIn file included from (/usr/local/clang/include/absl/container/flat_hash_set.hc:o43n:
sIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h :a19b:
sIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:::59s:
tIn file included from r/usr/local/clang/include/absl/strings/cord.hi:n94g:
_In file included from v/usr/local/clang/include/absl/strings/internal/cordz_info.hi:e31w:
&/usr/local/clang/include/absl/synchronization/mutex.h):;1117
:      34| :^ 
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
449:31:  note: 1117expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
  e  x449p | l i ceixtt eMrunt etxeLmopclkaMtaey bceo(nMsutt ecxh*a ra*b salb_snlu_lnloanbnluel lm uM,a kceoCnhsetc kCOopnSdtirtiinogn(&   c o\n
d      )| 
                              ^      
|                                  ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::257 :note: 23expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2builderutil_find_polygon_degeneracies.cc::45918::
1In file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h :warning: 24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/log/internal/check_op.h::31450:
:In file included from 25/usr/local/clang/include/absl/container/flat_hash_set.h:: 43note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19  :
450In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :x94,:
 In file included from x/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31c:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s1132t: 10c:h awarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 ab s1132l | _ n oMnuntuelxl*) 
a      b| s                        ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull'c
on  s241t |  #mdue_f;i
n      e|           ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 _  N257o | n#nduelfli
n      e|                       ^a
bsl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_find_polygon_degeneracies.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_find_polygon_degeneracies.hl:l24
:
      In file included from | ../src/s2/s2builder.h                     ^:
31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43In file included from :
s2/s2builderutil_lax_polygon_layer.ccIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h18::
19In file included from :
../src/s2/s2builderutil_lax_polygon_layer.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h40::
59In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/cord.h21::
94In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h37::
31In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/synchronization/mutex.h::211146:
:/usr/local/clang/include/absl/log/internal/check_op.h7::460 :warning: 66'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1146 |     460  |  A B StLh_iLsO)G)_ IANBTSELR_NEAXLC_LDUESFIIVNEE__LMOACKKE__FCUHNECCTKI_OONP(_mSuT)R
I      N| G      ^~~~_
EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::1153241::3922::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

 1153 |    241  | e#xdpelfiicniet  aRbeslle_ansoanbleMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulnl _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   uelxlp l_iNcointn uRlell
e      a| s                     ^a
bleMutexLock(MutIn file included from es2/s2builderutil_lax_polygon_layer.ccx:*18 :
aIn file included from b../src/s2/s2builderutil_lax_polygon_layer.hs:l40_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :m37u:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 460C:o66n:d iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
on&/usr/local/clang/include/absl/base/nullability.h :c241o:n22d:) 
note:       expanded from macro 'absl_nonnull'| 
                                      ^
  241/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  a_bNsoln_nnuolnln
u      l| l                     ^ 
_NonnulIn file included from ls2/s2builderutil_lax_polygon_layer.cc
:      18| :
                     ^In file included from 
../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_In file included from Cs2/s2builderutil_find_polygon_degeneracies.ccH:E18C:
KIn file included from _../src/s2/s2builderutil_find_polygon_degeneracies.hO:P24_:
SIn file included from T../src/s2/s2builder.hR:IN31G:
_In file included from E/usr/local/clang/include/absl/container/flat_hash_set.hX:T43E:
RIn file included from N/usr/local/clang/include/absl/container/hash_container_defaults.h(:c19o:
nIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht: 59c:
hIn file included from a/usr/local/clang/include/absl/strings/cord.hr:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n1179n:u10l:l )warning: ;type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      | ^ 
1179 | /usr/local/clang/include/absl/log/internal/check_op.h : 450M:u25t:e xnote: *expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
absl_nu  l450l | a b l e   m ux_,; 
x      ,|           ^c
on/usr/local/clang/include/absl/base/nullability.hs:t257 :c23h:a rnote: *expanded from macro 'absl_nullable' 
ab  s257l | _#ndoenfniunlel )a
b      s| l                        ^_
nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e  note: _expanded from macro 'absl_nonnull'N
ul  l241a | b#ldee
f      i| n                      ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40In file included from :
s2/s2builderutil_find_polygon_degeneracies.ccIn file included from :../src/s2/base/logging.h18::
21In file included from :
../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from :/usr/local/clang/include/absl/log/check.h24::
37In file included from :
../src/s2/s2builder.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h31::
21In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/log/internal/check_op.h::43461:
:In file included from 1/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h  :46159 | :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L94_:
LIn file included from O/usr/local/clang/include/absl/strings/internal/cordz_info.hG:_31I:
NT/usr/local/clang/include/absl/synchronization/mutex.hE:R1212N:A52L:_ Dwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
INE_ M1212A | KbEo_oClH ECCoKn_dOiPt_iSoTnR:I:NCGa_sEtXATnEdRCNa(l
l      M| e^t
ho/usr/local/clang/include/absl/log/internal/check_op.hd:(450c:o25n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'C
on  d450i | t i o n *   axb,s lx_,n ocnonnusltl  cch)a r{*
       a| b                                                   ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l )note: 
expanded from macro 'absl_nonnull'      
|                         ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2builderutil_find_polygon_degeneracies.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2builderutil_find_polygon_degeneracies.h::46324::
1In file included from :../src/s2/s2builder.h :warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43  :
463In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.hA:B19S:
LIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:O59G:
_In file included from I/usr/local/clang/include/absl/strings/cord.hN:T94E:
RIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hA:L31_:
D/usr/local/clang/include/absl/synchronization/mutex.hE:F1221I:N54E:_ Mwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]K
E_CH E1221C | Kb_oOoPl_ SCToRnIdNiGt_iEoXnT:E:RCNa(s
t      A| n^d
Ca/usr/local/clang/include/absl/log/internal/check_op.hl:l449F:u31n:c tnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
n(c  o449n | s t  eCxotnedrint itoenm*p laabtsel _cnoonnsntu lclh acr)*  {a
b      s| l                                                     ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :M anote: kexpanded from macro 'absl_nonnull'e
Ch  e241c | k#OdpeSftirnien ga(b s l _\n
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsiIn file included from gs2/s2builderutil_find_polygon_degeneracies.ccn:e18d:
 In file included from c../src/s2/s2builderutil_find_polygon_degeneracies.hh:a24r:
*In file included from  ../src/s2/s2builder.ha:b31s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hn:o43n:
nIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19):
;In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59                         ^:

In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22/usr/local/clang/include/absl/synchronization/mutex.h:: 1230:note: 12expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de f1230i | n e   a bbsolo_ln o(n*naublsll __nNoonnnnuullll 
f      u| n                     ^c
)(T* abIn file included from ss2/s2builderutil_lax_polygon_layer.ccl:_18n:
uIn file included from l../src/s2/s2builderutil_lax_polygon_layer.hl:a40b:
iIn file included from l../src/s2/base/logging.hi:t21y:
_In file included from u/usr/local/clang/include/absl/log/check.hn:k37n:
oIn file included from w/usr/local/clang/include/absl/log/internal/check_impl.hn:)21,:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 464           ^:
26: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.ccIn file included from :s2/s2builderutil_lax_polygon_layer.cc18::
18In file included from :
../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h24::
40In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/base/logging.h31::
21In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/log/check.h43::
37In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h19::
21In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/log/internal/check_op.h::59463:
:In file included from 1/usr/local/clang/include/absl/strings/cord.h:: 94warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h463: | 1230A:BS34L:_ Lwarning: Otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]G
_IN T1230E | R N A L _bDoEoFlI N(E*_aMbAsKlE__nCoHnEnCuKl_lO Pf_uSnTcR)I(NTG*_ EaXbTsElR_Nn(u
l      l| a^b
il/usr/local/clang/include/absl/log/internal/check_op.hi:t450y:_25u:n knote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
wn  )450, | 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.hx:,289 :x34,:  cnote: oexpanded from macro 'absl_nullability_unknown'n
st   289c | h#adre*f ianbes la_bnsoln_nnuullll)a
b      i| l                        ^i
ty/usr/local/clang/include/absl/base/nullability.h_:u241n:k22n:o wnote: nexpanded from macro 'absl_nonnull' 
_N  u241l | l#_duenfsipneec iafbiseld_
n      o| n                                 ^n
ull _Nonnull
      |                      ^In file included from 
s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc31::
18/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1231../src/s2/s2builderutil_lax_polygon_layer.h::840::
 In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
21:
In file included from  /usr/local/clang/include/absl/log/check.h1231: | 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :T21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b465s:l1_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abil  i465t | yA_BuSnLk_nLoOwGn_ IaNrTgE)R
N      A| L       ^_
DE/usr/local/clang/include/absl/base/nullability.hF:I289N:E34_:M Anote: Kexpanded from macro 'absl_nullability_unknown'E
_C  H289E | C#Kd_eOfPi_nSeT RaIbNsGl__EnXuTlElRaNb(iclointsyt_ uvnokindo*w na b_sNlu_lnlo_nunnuslple)c;i
f      i| e^d

      | /usr/local/clang/include/absl/log/internal/check_op.h                                 ^:
449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2builderutil_find_polygon_degeneracies.cc | :#18d:
eIn file included from f../src/s2/s2builderutil_find_polygon_degeneracies.hi:n24e:
 In file included from a../src/s2/s2builder.hb:s31l:
_In file included from n/usr/local/clang/include/absl/container/flat_hash_set.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl: 19_:
NIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 1241s2/s2builderutil_lax_polygon_layer.cc::1218::
 In file included from warning: ../src/s2/s2builderutil_lax_polygon_layer.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
40:
In file included from ../src/s2/base/logging.h: 211241:
 | In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
bIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.ho:l21 :
(/usr/local/clang/include/absl/log/internal/check_op.h*:a465b:s66l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l465  | fAuBnScL)_(LTO*G _aIbNsTlE_RnNuAlLl_ability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.hD:E289F:I34N:E _note: Mexpanded from macro 'absl_nullability_unknown'A
KE  _289C | H#EdCeKf_iOnPe_ SaTbRsIlN_Gn_uElXlTaEbRiNl(ictoyn_sutn kvnooiwdn*  _aNbuslll__nuonnsnpuelcli)f;i
e      d| 
                                                                 ^      
|                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2builderutil_find_polygon_degeneracies.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hu:l24l:
 In file included from _../src/s2/s2builder.hN:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h                     ^:
19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2builderutil_lax_polygon_layer.cc::124218::
44In file included from :../src/s2/s2builderutil_lax_polygon_layer.h :warning: 40type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21 :
1242In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from t/usr/local/clang/include/absl/log/internal/check_impl.hy:p21e:
n/usr/local/clang/include/absl/log/internal/check_op.ha:m465e: 66a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:t/usr/local/clang/include/absl/base/nullability.hy:p241e:_22i:d enote: nexpanded from macro 'absl_nonnull't
it  y241< | T#>d:e:ftiynpee *a basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n

      |                                            ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc289::1834:
:In file included from  ../src/s2/s2builderutil_lax_polygon_layer.hnote: :expanded from macro 'absl_nullability_unknown'40
:
In file included from ../src/s2/base/logging.h  :28921 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_465n:u1l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
lit  y465_ | uAnBkSnLo_wLnO G__NIuNlTlE_RuNnAsLp_eDcEiFfIiNeEd_
M      A| K                                 ^E
_CHECK_OP_STRING_EXTERN(const void* absl_nonnulIn file included from ls2/s2builderutil_find_polygon_degeneracies.cc):;18
:
      In file included from | ../src/s2/s2builderutil_find_polygon_degeneracies.h^:
24:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2builder.h450::3125:
:In file included from  /usr/local/clang/include/absl/container/flat_hash_set.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h  :45019 | :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from x/usr/local/clang/include/absl/strings/cord.h,: 94x:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31n:
s/usr/local/clang/include/absl/synchronization/mutex.ht: 1249c:h8a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl _1249n | o n n u lTl*) 
a      b| s                        ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: oexpanded from macro 'absl_nonnull'b
je  c241t | ,#
d      e| f       ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc31::
18/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1250../src/s2/s2builderutil_lax_polygon_layer.h::4340::
 In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/log/check.h :125037 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21b:
o/usr/local/clang/include/absl/log/internal/check_op.ho:l502 :(1a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:ty  p502e | _AiBdSeLn_tLiOtGy_<ITN>T:E:RtNyApLe_:C:H*E CaKb_sOlP__nIoMnPnLu(lClh emcekt_hEoQd,) (=)=))

            | |                                           ^^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/check_op.h241::48822::32 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  241 | #  d488e | f i nien laibnsel _cnoonnsntuelxlp r_ Ncoonnnsutl lc
h      a| r                     ^*
 absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nuIn file included from ls2/s2builderutil_find_polygon_degeneracies.ccl:a18b:
lIn file included from e../src/s2/s2builderutil_find_polygon_degeneracies.h :_24N:
uIn file included from l../src/s2/s2builder.hl:a31b:
lIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.h
:      43| :
                      ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc1259::1814:
:In file included from  ../src/s2/s2builderutil_lax_polygon_layer.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]40
:
In file included from ../src/s2/base/logging.h :125921 | :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
T/usr/local/clang/include/absl/log/internal/check_op.h*: 502a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l489l: 47o:b jnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'c
t,
        | 489             ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22c:o nnote: sexpanded from macro 'absl_nonnull't
 T  1241& |  #vd1e,f icnoen satb sTl2_&n ovn2n,u lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull exprtext)In file included from  s2/s2builderutil_find_polygon_degeneracies.cc{: 18 :
 In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h :\24
:
      In file included from | ../src/s2/s2builder.h                                              ^:
31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h241::4322:
:In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h:note: 19expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h  :24159 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:1260:43: _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu l1260l |   _ N o nbnouolll 
(      a| b                     ^s
l::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :s2/s2builderutil_find_polygon_degeneracies.cc502::181:
:In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]24
:
In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/log/internal/check_op.h::31497:
:In file included from 32/usr/local/clang/include/absl/container/flat_hash_set.h:: 43note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h497: | 59 :
 In file included from i/usr/local/clang/include/absl/strings/cord.hn:l94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t1279e:x35p:r  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst  c1279h | avro*i d Reagbisslt_enruMlultaebxlPer onfaimlee#r#(Ivmopild(  ( * a b s l _ n o n n u l l   f n ) (\i
n      t| 6                               ^4
_t/usr/local/clang/include/absl/base/nullability.h :w257a:i23t:_ cnote: yexpanded from macro 'absl_nullable'c
le  s257) | )#;d
e      f| i                                  ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _NIn file included from os2/s2builderutil_lax_polygon_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_lax_polygon_layer.h
:      40| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's2/s2builderutil_find_polygon_degeneracies.cc
:18:
In file included from   ../src/s2/s2builderutil_find_polygon_degeneracies.h498: | 24 :
 In file included from  ../src/s2/s2builder.h : 31 :
iIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.ht: 43v:
1In file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h :i19n:
tIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hv:259,:
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:n94s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:h31a:
r/usr/local/clang/include/absl/synchronization/mutex.h*: 1293a:b33s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul l1293  | evxopirdt eRxetg)i s{t e r M u t e x T r a c e r ( v o i\d
       (| *                                  ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 f  n241) | (#cdoenfsitn ec haabrs*l _anbosnln_unloln n_uNloln nmuslgl,

            | |                      ^                                ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builderutil_find_polygon_degeneracies.ccs2/s2builderutil_lax_polygon_layer.cc::1818:
:
In file included from In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h../src/s2/s2builderutil_lax_polygon_layer.h::2440:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/base/logging.h::3121:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/log/check.h::4337:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/log/internal/check_impl.h::1921:
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/log/internal/check_op.h::59505:
:/usr/local/clang/include/absl/strings/cord.h1::480 :39warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  505 |   A480B | S L _ L OuGs_iInNgT EpRoNiAnLt_eCrH E=C Kc_oOnPs_tI MvPaLl(uCeh_etcykp_eL*T ,a b<s)l
_      n| o^n
nul/usr/local/clang/include/absl/log/internal/check_op.hl:;488
:      32| :                                      ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/base/nullability.h
:241:22:   488note:  | expanded from macro 'absl_nonnull' 
 i  n241l | i#ndee fcionnes taebxsplr_ ncoonnnsutl lc h_aNro*n naublsll
_      n| u                     ^l
lable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from In file included from s2/s2builderutil_find_polygon_degeneracies.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h/usr/local/clang/include/absl/log/check.h::2437:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/flat_hash_set.h::50543::
1In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :warning: 19type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/log/internal/check_op.h59::
489/usr/local/clang/include/absl/strings/cord.h::47501:: 52note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  489 |     501  |       c oenxsptl iTc1i&t  vC1h,u nckoIntsetr aTt2o&r (vc2o,r dc_oinnstte rcnhaalr:*: CaobrsdlR_enpo*n naublsll _enxopnrntuelxlt )t r{e e ) ; 
       \| 
                                                   ^      
|                                               ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2builderutil_lax_polygon_layer.cc241: | 18#:
dIn file included from e../src/s2/s2builderutil_lax_polygon_layer.hf:i40n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
_/usr/local/clang/include/absl/log/internal/check_op.hN:o505n:n1u:l lwarning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constIn file included from es2/s2builderutil_find_polygon_degeneracies.ccx:p18r:
 In file included from c../src/s2/s2builderutil_find_polygon_degeneracies.ho:n24s:
tIn file included from  ../src/s2/s2builder.hc:h31a:
rIn file included from */usr/local/clang/include/absl/container/flat_hash_set.h :a43b:
sIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h_:n19u:
lIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b59l:
e/usr/local/clang/include/absl/strings/cord.h :n507a:m43e:# #warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl(   507  |          v o i d   I n i t T r e e\(
c      o| r                               ^d
_i/usr/local/clang/include/absl/base/nullability.hn:t257e:r23n:a lnote: :expanded from macro 'absl_nullable':
Co  r257d | R#edpe*f ianbes la_bnsoln_nnuullll atbrleee);
       | _                                          ^N
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:
       note: | expanded from macro 'absl_nonnull'                      ^

  241 | #definIn file included from es2/s2builderutil_lax_polygon_layer.cc :a18b:
sIn file included from l../src/s2/s2builderutil_lax_polygon_layer.h_:n40o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                     ^505
:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_noIn file included from ns2/s2builderutil_find_polygon_degeneracies.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.he:x24p:
rIn file included from t../src/s2/s2builder.he:x31t:
)In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h{: 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 /usr/local/clang/include/absl/strings/cord.h : 525 : 35\:
       warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                  ^

/usr/local/clang/include/absl/base/nullability.h:  241525: | 22 :   note:  expanded from macro 'absl_nonnull'a
bs  l241: | :#cdoerfdi_nien taebrsnla_ln:o:nCnourldlR e_pN*o nanbuslll_
n      u| l                     ^l
able current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc19::
18In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h59::
40/usr/local/clang/include/absl/strings/cord.h:
:In file included from 730../src/s2/base/logging.h::3621::
 In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21730:
 |  /usr/local/clang/include/absl/log/internal/check_op.h : 506 :e1x:p lwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
it   C506h | aArBRSaLn_gLeO(Gc_oInNsTtE RCNoArLd_*C HaEbCsKl__OnPo_nInMuPlLl( Cchoercdk)_ G:E ,c o>r=d)_
(      c| o^r
d) /usr/local/clang/include/absl/log/internal/check_op.h{:}488
:      32| :                                   ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/base/nullability.h
:241:22:   488note:  | expanded from macro 'absl_nonnull' 
 i  n241l | i#ndee fcionnes taebxsplr_ ncoonnnsutl lc h_aNro*n naublsll
_      n| u                     ^l
lable name##Impl(                In file included from  s2/s2builderutil_find_polygon_degeneracies.cc : 18\:

In file included from       ../src/s2/s2builderutil_find_polygon_degeneracies.h| :                               ^24
:
In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/base/nullability.h::31257:
:In file included from 23/usr/local/clang/include/absl/container/flat_hash_set.h:: 43:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
  In file included from 257/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | :#59d:
e/usr/local/clang/include/absl/strings/cord.hf:i736n:e17 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l736l | a b l e  c_oNnusltl aCbolred
*       | a                      ^b
sl_nonnull cord_;
In file included from       s2/s2builderutil_lax_polygon_layer.cc| :                ^18
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builderutil_lax_polygon_layer.h::24140::
22In file included from :../src/s2/base/logging.h :note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 506a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l489l: 47_:N onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
ull  
489       | |                       ^ 
    const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2builderutil_find_polygon_degeneracies.cc :_18N:
oIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hn:u24l:
lIn file included from 
../src/s2/s2builder.h      :| 31                     ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2builderutil_lax_polygon_layer.ccl:l18 :
_In file included from N../src/s2/s2builderutil_lax_polygon_layer.ho:n40n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const chIn file included from as2/s2builderutil_find_polygon_degeneracies.ccr:*18 :
aIn file included from b../src/s2/s2builderutil_find_polygon_degeneracies.hs:l24_:
nIn file included from o../src/s2/s2builder.hn:n31u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h :e43x:
pIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.ht:e19x:
tIn file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :{59 :
  /usr/local/clang/include/absl/strings/cord.h : 898 : 27 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       898\ | 
        | f                                  ^r
ie/usr/local/clang/include/absl/base/nullability.hn:d241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
Co  r241d | z#Idneffoi*n ea basbls_ln_unlolnanbullel  G_eNtoCnonrudlzlI
n      f| o                     ^F
orTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absIn file included from ls2/s2builderutil_get_snapped_winding_delta.cc_:n50o:
nIn file included from n../src/s2/s2builderutil_get_snapped_winding_delta.hu:l24l:
 In file included from s../src/s2/s2builder.he:t31_:
dIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.ht:a43(:
sIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hz:e19_:
tIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:)59;:
 In file included from  /usr/local/clang/include/absl/strings/cord.h/:/86 :
Wr/usr/local/clang/include/absl/strings/cord_analysis.hi:t32e: 47d:a twarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
to t   h32e |  sriezseu_ltt 
G      e| t          ^E
st/usr/local/clang/include/absl/base/nullability.hi:m241a:t22e:d Mnote: eexpanded from macro 'absl_nonnull'm
or  y241U | s#adgeef(icnoen satb sClo_rndoRnenpu*l la b_sNlo_nnnounlnlu
l      l|                       ^r
ep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2builderutil_find_polygon_degeneracies.cc#:d18e:
fIn file included from i../src/s2/s2builderutil_find_polygon_degeneracies.hn:e24 :
aIn file included from b../src/s2/s2builder.hs:l31_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h :_19N:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.h
:      937| :                     ^35
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_iIn file included from ns2/s2builderutil_get_snapped_winding_delta.cct:e50r:
nIn file included from a../src/s2/s2builderutil_get_snapped_winding_delta.hl::24::
CIn file included from o../src/s2/s2builder.hr:d31R:
eIn file included from p/usr/local/clang/include/absl/container/flat_hash_set.h*: 43a:
bIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hl:_19n:
uIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:a59b:
lIn file included from e/usr/local/clang/include/absl/strings/cord.h :t86r:
e/usr/local/clang/include/absl/strings/cord_analysis.he:(50): 49c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
;
      |                                      ^50
 | s/usr/local/clang/include/absl/base/nullability.hi:z257e:_23t:  Gnote: eexpanded from macro 'absl_nullable't
Mo  r257e | P#rdeecfiisneeM eambosrly_Unsualglea(bcloen s_tN uClolradbRleep
*       | a                      ^b
sl_nonnull rep);
      |                                                 ^In file included from 
s2/s2builderutil_find_polygon_degeneracies.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2builderutil_find_polygon_degeneracies.h::2224::
 In file included from ../src/s2/s2builder.hnote: :expanded from macro 'absl_nonnull'31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h  :24143 | :
#In file included from d/usr/local/clang/include/absl/container/hash_container_defaults.he:f19i:
nIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :a59b:
s/usr/local/clang/include/absl/strings/cord.hl:_938n:o35n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o938n | n u l l 
a      b| s                     ^l
::cord_internal::CorIn file included from ds2/s2builderutil_get_snapped_winding_delta.ccR:e50p:
*In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.ha:b24s:
lIn file included from _../src/s2/s2builder.hn:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43 :
aIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.h_:t19r:
eIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h(:)59 :
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s86t:
;/usr/local/clang/include/absl/strings/cord_analysis.h
:      56| :                                  ^56
: /usr/local/clang/include/absl/base/nullability.hwarning: :241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:    expanded from macro 'absl_nonnull'56
 | s  i241z | e#_dte fGienteE satbismla_tneodnFnauilrlS h_aNroenMneumlolr
y      U| s                     ^a
ge(const CordRIn file included from es2/s2builderutil_find_polygon_degeneracies.ccp:*18 :
aIn file included from bIn file included from ../src/s2/s2builderutil_find_polygon_degeneracies.hss2/s2builderutil_lax_polygon_layer.cc:l:24_18:
n:
In file included from oIn file included from ../src/s2/s2builder.hn../src/s2/s2builderutil_lax_polygon_layer.h:n:31u40:
l:
In file included from lIn file included from /usr/local/clang/include/absl/container/flat_hash_set.h ../src/s2/base/logging.h:r:43e21:
p:
In file included from )In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h;/usr/local/clang/include/absl/log/check.h:
:19      37:
| :
In file included from                                                        ^In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h
/usr/local/clang/include/absl/log/internal/check_impl.h::/usr/local/clang/include/absl/base/nullability.h5921::
:
241/usr/local/clang/include/absl/strings/cord.h::/usr/local/clang/include/absl/log/internal/check_op.h22939:::507 17:note: :expanded from macro 'absl_nonnull'1 
:warning:    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241warning: 
 | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
  d939e | f i   n 507e   | cAaobBnsslSt_L nco_hnLanrOu*Gl _laI b_NsTNlEo_nRnnoNunAlnLlu
_l      lC|  H                     ^aE
sC_Kc_hOaPr_sI(M)P Lc(oCnhsetc;k
_      G| T                ^,
 >/usr/local/clang/include/absl/base/nullability.h):
241      :| 22^:
 note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
488:32  :241  | note: #expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'de
fin  e488  | a b siln_lnionnen ucloln s_tNeoxnpnru lclo
n      s| t                     ^ 
char* absl_nullableIn file included from  s2/s2builderutil_find_polygon_degeneracies.ccn:a18m:
eIn file included from #../src/s2/s2builderutil_find_polygon_degeneracies.h#:I24m:
pIn file included from l../src/s2/s2builder.h(: 31 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 /usr/local/clang/include/absl/strings/cord.h :\941
:      35| :                               ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23  :941  | note:  expanded from macro 'absl_nullable' 
    a257b | s#ld:e:fcionred _aibnstle_rnnualll:a:bCloer d_RNeupl*l aabblsel
_      n| u                      ^l
lable clear();
      In file included from | s2/s2builderutil_lax_polygon_layer.cc                                  ^:
18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h257::4023:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'absl_nullable'21
:
In file included from   /usr/local/clang/include/absl/log/check.h257: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :a507b:s1l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
la/usr/local/clang/include/absl/log/internal/check_op.hb:l489e: 47_:N unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
abl  e489
 |        |                        ^ 
   const T1& v1, const T2& v2, const char* absl_nonnuIn file included from ls2/s2builderutil_find_polygon_degeneracies.ccl: 18e:
xIn file included from p../src/s2/s2builderutil_find_polygon_degeneracies.hr:t24e:
xIn file included from t../src/s2/s2builder.h): 31{:
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
\In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                                              ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/base/nullability.h59::
241/usr/local/clang/include/absl/strings/cord.h::22950:: 18note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f950i | n e   a bCsolr_dnRoenpnFullalt *_ Naobnsnlu_lnlo
n      n| u                     ^l
l MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc43::
18In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h19::
40In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/base/logging.h59::
21/usr/local/clang/include/absl/strings/cord.h:
:In file included from 957/usr/local/clang/include/absl/log/check.h::2737::
 In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:  507957: | 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]v
oi/usr/local/clang/include/absl/log/internal/check_op.hd: 497S:e32t:T rnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
(Cor  d497R | e p *i nalbisnle_ ncoonnnsutlelx prre pc,o ncsotn scth aCro*r dazbUspld_antuelSlcaobplee&  nsacmoep#e#)I;m
p      l| (                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e\f
i      n| e                               ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 _  N257o | n#nduelfli
n      e|                       ^a
bsl_nullable _Nullable
      | In file included from                       ^s2/s2builderutil_find_polygon_degeneracies.cc
:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31In file included from :
s2/s2builderutil_lax_polygon_layer.ccIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h18::
43In file included from :
../src/s2/s2builderutil_lax_polygon_layer.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h40::
19In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h21::
59In file included from :
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::37961:
:In file included from 34/usr/local/clang/include/absl/log/internal/check_impl.h:: 21warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:507:1  :961  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.hv:o498i:d35 :S enote: texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'T
ree  O498r | E m p t y ( Cionrtd Rve1p,*  ianbts lv_2n,u lcloanbslte  crheapr,*
       a| b                                 ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'e
xp  r257t | e#xdte)f i{n e   a b s l _ n u l l a b l e   _\N
u      l| l                                  ^a
bl/usr/local/clang/include/absl/base/nullability.he:
241      :| 22                      ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2builderutil_find_polygon_degeneracies.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hu:l24l:
 In file included from _../src/s2/s2builder.hN:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43
:
      In file included from | /usr/local/clang/include/absl/container/hash_container_defaults.h                     ^:
19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.ccIn file included from :s2/s2builderutil_lax_polygon_layer.cc18::
18In file included from :
../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h24::
40In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/base/logging.h31::
21In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/log/check.h43::
37In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h19::
21In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/log/internal/check_op.h59::
511/usr/local/clang/include/absl/strings/cord.h::13989:: 31warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  511 |   c989o | n s t   cvhoaird*  Parbesple_nnduTlrleaeb(lCeo rCdhReecpk*s tarbcsmlp_tnrounenIumlpll (t
r      e| e            ^,
 Me/usr/local/clang/include/absl/base/nullability.ht:h257o:d23I:d enote: nexpanded from macro 'absl_nullable't
if  i257e | r# dmeeftihnoed )a;b
s      l| _                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  _note: Nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed
e      f| i                      ^n
e abslIn file included from _s2/s2builderutil_lax_polygon_layer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_lax_polygon_layer.hl:l40 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* aIn file included from bs2/s2builderutil_find_polygon_degeneracies.ccs:l18_:
nIn file included from u../src/s2/s2builderutil_find_polygon_degeneracies.hl:l24a:
bIn file included from l../src/s2/s2builder.he: 31s:
1In file included from ,/usr/local/clang/include/absl/container/flat_hash_set.h :c43o:
nIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.ht: 19c:
hIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:*59 :
a/usr/local/clang/include/absl/strings/cord.hb:s994l:_30n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   994s | 2 , 
        | v                ^o
id/usr/local/clang/include/absl/base/nullability.h :C257o:p23y:T onote: (expanded from macro 'absl_nullable's
td  :257: | s#tdreifnign*e  aabbssll__nnounlnlualbll ed s_tN)u lcloanbslte 
{      
|                             ^| 
                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2builderutil_lax_polygon_layer.cc | :#18d:
eIn file included from f../src/s2/s2builderutil_lax_polygon_layer.hi:n40e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n512n:u47l:l 
warning:       type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 
                     ^
  512 |     const char*In file included from  s2/s2builderutil_find_polygon_degeneracies.cca:b18s:
lIn file included from _../src/s2/s2builderutil_find_polygon_degeneracies.hn:u24l:
lIn file included from a../src/s2/s2builder.hb:l31e:
 In file included from s/usr/local/clang/include/absl/container/flat_hash_set.h1:,43 :
cIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:s19t:
 In file included from c/usr/local/clang/include/absl/container/internal/hash_function_defaults.hh:a59r:
*/usr/local/clang/include/absl/strings/cord.h :a999b:s28l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab  l999e |   s 2 , 
v      o| i                                              ^d
 C/usr/local/clang/include/absl/base/nullability.ho:p257y:T23o:A rnote: rexpanded from macro 'absl_nullable'a
y(  c257h | a#rd*e faibnsel _anbosnln_unlull ldasbtl)e  c_oNnusltl;a
b      l| e                           ^

      | /usr/local/clang/include/absl/base/nullability.h                      ^:
241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2builderutil_lax_polygon_layer.cc:  18241:
 | In file included from #../src/s2/s2builderutil_lax_polygon_layer.hd:e40f:
iIn file included from n../src/s2/base/logging.he: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h :_513N:o17n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                        ^513
 |     const char* absl_nonnull exprtext)In file included from ;s2/s2builderutil_find_polygon_degeneracies.cc
:      18| :
                ^In file included from 
../src/s2/s2builderutil_find_polygon_degeneracies.h:24/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2builder.h::2231::
 In file included from note: /usr/local/clang/include/absl/container/flat_hash_set.hexpanded from macro 'absl_nonnull':
43:
  In file included from 241/usr/local/clang/include/absl/container/hash_container_defaults.h | :#19d:
eIn file included from f/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:n59e:
 /usr/local/clang/include/absl/strings/cord.ha:b1012s:l37_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  _1012N | o n n u lalb
s      l| :                     ^:
cord_internal::CordzInfo*In file included from  s2/s2builderutil_lax_polygon_layer.cca:b18s:
lIn file included from _../src/s2/s2builderutil_lax_polygon_layer.hn:u40l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from c/usr/local/clang/include/absl/log/check.ho:r37d:
zIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hi:n21f:
o/usr/local/clang/include/absl/log/internal/check_op.h(:)514 :c13o:n swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
{
        | 514                                    ^ | 
co/usr/local/clang/include/absl/base/nullability.hn:s257t: 23c:h anote: rexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneuflilnaeb laeb sClh_encuklsltarbclmep f_aNluslelIambplle(

            | |                       ^            ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2builderutil_find_polygon_degeneracies.ccb:s18l:
_In file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hu:l24l:
aIn file included from b../src/s2/s2builder.hl:e31 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_set.hu:l43l:
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hl:e19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h                      ^:
59:
/usr/local/clang/include/absl/strings/cord.h:1017In file included from :s2/s2builderutil_lax_polygon_layer.cc51::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2builderutil_lax_polygon_layer.h
:40:
In file included from ../src/s2/base/logging.h :101721 | :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37v:
oIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hd: 21s:
e/usr/local/clang/include/absl/log/internal/check_op.ht:_515c:o17r:d zwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nfo  (515c | o r d _ icnotnesrtn aclh:a:rC*o radbzsIln_fnou*l laabbslle_ nso1n,n ucloln scto rcdhza_ri*n faob)s l{_
n      u| l                                                  ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241 :s222:, 
      note: | expanded from macro 'absl_nonnull'                ^

  /usr/local/clang/include/absl/base/nullability.h241: | 257#:d23e:f inote: nexpanded from macro 'absl_nullable'e
 a  b257s | l#_dneofninnuel la b_sNlo_nnnuulllla
b      l| e                     ^ 
_Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^In file included from 
s2/s2builderutil_find_polygon_degeneracies.cc:/usr/local/clang/include/absl/base/nullability.h18::
257In file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h23::24 :
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2builder.h
:31  :
257In file included from  | /usr/local/clang/include/absl/container/flat_hash_set.h#:d43e:
fIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hn:e19 :
aIn file included from b/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:l59_:
n/usr/local/clang/include/absl/strings/cord.hu:l1049l:a56b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Null a1049b | l e 
s      t| a                      ^t
ic boolIn file included from  s2/s2builderutil_lax_polygon_layer.ccG:e18t:
FIn file included from l../src/s2/s2builderutil_lax_polygon_layer.ha:t40A:
uIn file included from x../src/s2/base/logging.h(:a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h:::37c:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hd:_21i:
n/usr/local/clang/include/absl/log/internal/check_op.ht:e516r:n17a:l :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
or  d516R | e p *   acbosnls_tn ocnhnaurl*l  arbespl,_
n      o| n                                                       ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241e:x22p:r tnote: eexpanded from macro 'absl_nonnull'x
t)  ;241
 |       #| d                ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _NonnuIn file included from ls2/s2builderutil_find_polygon_degeneracies.ccl:
18      :
| In file included from                      ^../src/s2/s2builderutil_find_polygon_degeneracies.h
:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.hs2/s2builderutil_lax_polygon_layer.cc::5918:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h1050::4045:
:In file included from  ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h: 371050:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 517 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      517  |  c o n s t  acbhsalr:*: satbrsiln_gn_uvlileawb*l ea bCshle_cnkosntnruclals efcrmapgtmreunetI)m;p
l      (| 
                                            ^      
| /usr/local/clang/include/absl/base/nullability.h            ^:
241:/usr/local/clang/include/absl/base/nullability.h22::257 :note: 23expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2builderutil_find_polygon_degeneracies.cc::2118:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h518::2417:
:In file included from  ../src/s2/s2builder.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:  43518:
 | In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h: 59 :
 /usr/local/clang/include/absl/strings/cord.hc:o1054n:s37t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r*  a1054b | s l _ n u l laabbslle: :sc1o,r dc_oinnstte rcnhaalr:*: CaobrsdlR_enpu*l laabbslle_ nso2n,n
u      l| l                ^ 
re/usr/local/clang/include/absl/base/nullability.hp:,257
:      23| :                                    ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241  :25722 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e abs241l | _#nduelflianbel ea b_sNlu_lnloanbnluel
l       | _                      ^N
onnullIn file included from 
s2/s2builderutil_lax_polygon_layer.cc      :| 18                     ^:

In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const charIn file included from *s2/s2builderutil_find_polygon_degeneracies.cc :a18b:
sIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.h_:n24u:
lIn file included from l../src/s2/s2builder.ha:b31l:
eIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hs:143,:
 In file included from c/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19s:
tIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hc:h59a:
r/usr/local/clang/include/absl/strings/cord.h*: 1061a:b34s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla b1061l | e   sv2o,i
d       | C                                              ^o
py/usr/local/clang/include/absl/base/nullability.hT:o257A:r23r:a ynote: Sexpanded from macro 'absl_nullable'l
ow  P257a | t#hd(ecfhianre*  aabbssll__nnuolnlnaubllle  d_sNtu)l lcaobnlset
;      
|                             ^| 
                                 ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2builderutil_lax_polygon_layer.cc22::18 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2builderutil_lax_polygon_layer.h
:40  :
241In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n519n:u17l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
on  n519u | l  l 
       c| o                     ^n
st char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13:In file included from  s2/s2builderutil_find_polygon_degeneracies.ccwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]18
:
In file included from   ../src/s2/s2builderutil_find_polygon_degeneracies.h520: | 24c:
oIn file included from n../src/s2/s2builder.hs:t31 :
cIn file included from h/usr/local/clang/include/absl/container/flat_hash_set.ha:r43*:
 In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:s19l:
_In file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l59l:
a/usr/local/clang/include/absl/strings/cord.hb:l1078e: 33C:h ewarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
strc a1078s | e c mapbfsall:s:ecIomrpdl_(i
n      t| e            ^r
na/usr/local/clang/include/absl/base/nullability.hl::257::C23o:r dnote: Rexpanded from macro 'absl_nullable'e
p*   257a | b#sdle_fnionnen ualbls lT_ankuelRleapb(l)e  c_oNnusltl&a;b
l      e| 
                                ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:241:22:In file included from  s2/s2builderutil_lax_polygon_layer.ccnote: :expanded from macro 'absl_nonnull'18
:
In file included from   ../src/s2/s2builderutil_lax_polygon_layer.h241: | 40#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l521l: 17_:N owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  
521       | |                       ^ 
  const char* absl_nullIn file included from as2/s2builderutil_find_polygon_degeneracies.ccb:l18e:
 In file included from s../src/s2/s2builderutil_find_polygon_degeneracies.h1:,24 :
cIn file included from o../src/s2/s2builder.hn:s31t:
 In file included from c/usr/local/clang/include/absl/container/flat_hash_set.hh:a43r:
*In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.ha:b1079l:e33 :s 2warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                 ^
 1079/usr/local/clang/include/absl/base/nullability.h | : 257 :a23b:s lnote: :expanded from macro 'absl_nullable':
co  r257d | _#idnetfeirnnea la:b:sClo_rnduRlelpa*b laeb s_lN_unlolnanbullel
       T| a                      ^k
eRep() &&;In file included from 
s2/s2builderutil_lax_polygon_layer.cc      :| 18                                ^:

In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:/usr/local/clang/include/absl/base/nullability.h40::
241In file included from :../src/s2/base/logging.h22::21 :
In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nonnull':
37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h241: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f521i:n47e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n  o521n | n u l l  c_oNnosntn uclhla
r      *|                       ^a
bsl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522In file included from :s2/s2builderutil_find_polygon_degeneracies.cc17::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2builderutil_find_polygon_degeneracies.h
:24:
  In file included from 522../src/s2/s2builder.h | : 31 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.hc:o43n:
sIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h :c19h:
aIn file included from r/usr/local/clang/include/absl/container/internal/hash_function_defaults.h*: 59a:
b/usr/local/clang/include/absl/strings/cord.hs:l1116_:n37o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l ex p1116r | t e xcto)n;s
t       | c                ^r
c_/usr/local/clang/include/absl/base/nullability.hi:n241t:e22r:n anote: lexpanded from macro 'absl_nonnull':
:C  r241c | C#odredfSitnaet ea*b salb_snlo_nnnuulllla b_lNeo nMnauylble
G      e| t                     ^C
rcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:40:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.hIn file included from :s2/s2builderutil_find_polygon_degeneracies.cc31::
18In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h43::
24In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2builder.h19::
31In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h59::
45In file included from :
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/container/internal/raw_hash_set.h:
:In file included from 2663/usr/local/clang/include/absl/strings/internal/cordz_info.h::5331::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :814'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 2663 |     814  |      CTo&n&d ivtailoune( bAoBoSlL _(I*NaTbEsRlN_AnLo_nAnTuTlRlI BfUuTnEc_)C(ATP*T UaRbEsDl__BnYu(ltlhaibsi)l)i
t      y| _                                                    ^~~~u
nknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_set.hs2/s2builderutil_get_snapped_winding_delta.cc::269250::
58In file included from :../src/s2/s2builderutil_get_snapped_winding_delta.h :24warning: :
In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]../src/s2/s2builder.h
:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43 :
2692In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h :c59o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht: 94T:
&In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hv:a31l:
u/usr/local/clang/include/absl/synchronization/mutex.he: 830A:B14S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TER  N830A | L _ A T T R IbBoUoTlE _(C*AaPbTsUlR_EnDo_nBnYu(ltlh ifsu)n)c
)      (| T                                                         ^~~~*
 absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/container/internal/raw_hash_set.h:
:In file included from 2734/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::6559::
 In file included from /usr/local/clang/include/absl/strings/cord.hwarning: :94'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h :2734831 | : 46 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      831  |              tTy&p&e nvaamleu ea bAsBlS:L:_tIyNpTeE_RiNdAeLn_tAiTtTyR<ITB>U:T:Et_yCpAeP*T UaRbEsDl__BnYu(ltlhaibsi)l)i
t      y| _                                                                ^~~~u
nknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _In file included from Ns2/s2builderutil_lax_polygon_layer.ccu:l18l:
aIn file included from b../src/s2/s2builderutil_lax_polygon_layer.hl:e42
:
      In file included from | ../src/s2/mutable_s2shape_index.h                      ^:
30:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2builderutil_find_polygon_degeneracies.cc::6618:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2builderutil_find_polygon_degeneracies.h::6924:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/container_memory.h../src/s2/s2builder.h::2935:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/id_set_lexicon.h::8928:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h../src/s2/base/logging.h::7921:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/log/check.h::2637:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::2139:
:/usr/local/clang/include/absl/log/internal/check_op.h45::512 :17warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
     39512 |  | i n l i nceo nusitn tc1h6a_rt*  Uanbaslli_gnnueldlLaobalde1 6s(1c,o ncsotn svto icdh*a ra*b salb_snlo_nnnuulllla bpl)e  {s
2      ,| 
                                            ^      
|                 ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241257::2223::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullable'

    241257 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbll e_ N_oNnunlullalb
l      e| 
                     ^      
|                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nIn file included from us2/s2builderutil_lax_polygon_layer.ccl:l18a:
bIn file included from l../src/s2/s2builderutil_lax_polygon_layer.he: 42s:
2In file included from ,../src/s2/mutable_s2shape_index.h
:      30| :
                                              ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/container/internal/btree.h::2369::
 In file included from note: /usr/local/clang/include/absl/container/internal/container_memory.hexpanded from macro 'absl_nullable':
29:
  In file included from 257/usr/local/clang/include/absl/hash/hash.h | :#89d:
eIn file included from f/usr/local/clang/include/absl/hash/internal/hash.hi:n79e:
 In file included from a/usr/local/clang/include/absl/base/internal/endian.hb:s26l:
_/usr/local/clang/include/absl/base/internal/unaligned_access.hn:u45l:l45a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Nul   l45a | bilnel
i      n| e                      ^ 
uint32_tIn file included from  s2/s2builderutil_find_polygon_degeneracies.ccU:n18a:
lIn file included from i../src/s2/s2builderutil_find_polygon_degeneracies.hg:n24e:
dIn file included from L../src/s2/s2builder.ho:a35d:
3In file included from 2../src/s2/id_set_lexicon.h(:c28o:
nIn file included from s../src/s2/base/logging.ht: 21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n513n:u17l:l  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {  
513       | |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  cnote: hexpanded from macro 'absl_nonnull'a
r*   241a | b#sdle_fnionnen ualbls le_xnporntneuxltl) ;_
N      o| n                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2builderutil_lax_polygon_layer.cc/usr/local/clang/include/absl/log/check.h::1837:
:
In file included from In file included from ../src/s2/s2builderutil_lax_polygon_layer.h/usr/local/clang/include/absl/log/internal/check_impl.h::4221:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/mutable_s2shape_index.h::51430::
13In file included from :/usr/local/clang/include/absl/container/btree_map.h :warning: 66type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:69  :
514In file included from  | /usr/local/clang/include/absl/container/internal/container_memory.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/hash/hash.h :c89h:
aIn file included from r/usr/local/clang/include/absl/hash/internal/hash.h*: 79a:
bIn file included from s/usr/local/clang/include/absl/base/internal/endian.hl:_26n:
u/usr/local/clang/include/absl/base/internal/unaligned_access.hl:l51a:b45l:e  warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
eck   s51t | ricnmlpifnael sueiInmtp6l4(_
t       | U            ^n
al/usr/local/clang/include/absl/base/nullability.hi:g257n:e23d:L onote: aexpanded from macro 'absl_nullable'd
64  (257c | o#ndsetf ivnoei da*b salb_snlu_lnloanbnluel l_ Npu)l l{a
b      l| e                                            ^

      | /usr/local/clang/include/absl/base/nullability.h                      ^:
241:22: In file included from note: s2/s2builderutil_find_polygon_degeneracies.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2builderutil_find_polygon_degeneracies.h | :#24d:
eIn file included from f../src/s2/s2builder.hi:n35e:
 In file included from a../src/s2/id_set_lexicon.hb:s28l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
515      :| 17                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2In file included from ,s2/s2builderutil_lax_polygon_layer.cc
:      18| :
                ^In file included from 
../src/s2/s2builderutil_lax_polygon_layer.h:/usr/local/clang/include/absl/base/nullability.h42::
257In file included from :../src/s2/mutable_s2shape_index.h23::30 :
In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nullable':
66:
  In file included from 257/usr/local/clang/include/absl/container/internal/btree.h | :#69d:
eIn file included from f/usr/local/clang/include/absl/container/internal/container_memory.hi:n29e:
 In file included from a/usr/local/clang/include/absl/hash/hash.hb:s89l:
_In file included from n/usr/local/clang/include/absl/hash/internal/hash.hu:l79l:
aIn file included from b/usr/local/clang/include/absl/base/internal/endian.hl:e26 :
_/usr/local/clang/include/absl/base/internal/unaligned_access.hN:u57l:l36a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                       ^
   57 | inlinIn file included from es2/s2builderutil_find_polygon_degeneracies.cc :v18o:
iIn file included from d../src/s2/s2builderutil_find_polygon_degeneracies.h :U24n:
aIn file included from l../src/s2/s2builder.hi:g35n:
eIn file included from d../src/s2/id_set_lexicon.hS:t28o:
rIn file included from e../src/s2/base/logging.h1:621(:
vIn file included from o/usr/local/clang/include/absl/log/check.hi:d37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o515n:n47u:l lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
, u  i515n | t 1 6 _ tc ovn)s t{ 
c      h| a                                   ^r
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #sd1e,f icnoen satb sclh_anro*n naublsll __nNuolnlnaubllle
       s| 2                     ^,

      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18In file included from :
s2/s2builderutil_lax_polygon_layer.ccIn file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h18::
24In file included from :
../src/s2/s2builderutil_lax_polygon_layer.hIn file included from :../src/s2/s2builder.h42::
35In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/id_set_lexicon.h30::
In file included from 28/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 69/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/container/internal/container_memory.h:
:In file included from 29/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/hash/hash.h:
:/usr/local/clang/include/absl/log/internal/check_op.h89::
516In file included from :/usr/local/clang/include/absl/hash/internal/hash.h17::79 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/internal/endian.h
:26:
  /usr/local/clang/include/absl/base/internal/unaligned_access.h516: | 61 : 36 :  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st c   h61a | ri*n laibnsel _vnooindn uUlnla leixgpnretdeSxtto)r;e
3      2| (                ^v
oi/usr/local/clang/include/absl/base/nullability.hd:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld epf,i nuei natb3s2l__tn ovn)n u{l
l       | _                                   ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define abIn file included from ss2/s2builderutil_find_polygon_degeneracies.ccl:_18n:
oIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hn:u24l:
lIn file included from  ../src/s2/s2builder.h_:N35o:
nIn file included from n../src/s2/id_set_lexicon.hu:l28l:

In file included from       ../src/s2/base/logging.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmIn file included from ps2/s2builderutil_lax_polygon_layer.cct:r18u:
eIn file included from I../src/s2/s2builderutil_lax_polygon_layer.hm:p42l:
(In file included from 
../src/s2/mutable_s2shape_index.h      :| 30            ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66257:
:In file included from 23/usr/local/clang/include/absl/container/internal/btree.h:: 69note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/container/internal/container_memory.h:  29257:
 | In file included from #/usr/local/clang/include/absl/hash/hash.hd:e89f:
iIn file included from n/usr/local/clang/include/absl/hash/internal/hash.he: 79a:
bIn file included from s/usr/local/clang/include/absl/base/internal/endian.hl:_26n:
u/usr/local/clang/include/absl/base/internal/unaligned_access.hl:l65a:b36l:e  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
ulla   b65l | ei
n      l| i                      ^n
e voIn file included from is2/s2builderutil_find_polygon_degeneracies.ccd: 18U:
nIn file included from a../src/s2/s2builderutil_find_polygon_degeneracies.hl:i24g:
nIn file included from e../src/s2/s2builder.hd:S35t:
oIn file included from r../src/s2/id_set_lexicon.he:6284:
(In file included from v../src/s2/base/logging.ho:i21d:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l518l: 17p:,  warning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nt6  4518_ | t   v )  c{o
n      s| t                                   ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef isn1e,  acbosnls_tn ocnhnaurl*l  a_bNsoln_nnuullll
a      b| l                     ^e
 s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit consteIn file included from xs2/s2builderutil_lax_polygon_layer.ccp:r18 :
VIn file included from L../src/s2/s2builderutil_lax_polygon_layer.ho:g42S:
iIn file included from t../src/s2/mutable_s2shape_index.he:(30c:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hs:t66 :
cIn file included from h/usr/local/clang/include/absl/container/internal/btree.ha:r69*:
 In file included from a/usr/local/clang/include/absl/container/internal/container_memory.hb:s29l:
_In file included from n/usr/local/clang/include/absl/hash/hash.ho:n89n:
uIn file included from l/usr/local/clang/include/absl/hash/internal/hash.hl: 79f:
)
/usr/local/clang/include/absl/base/internal/endian.h      :| 250                                          ^:
36: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 250expanded from macro 'absl_nonnull' | 
in  l241i | n#ed eufiinnte1 6a_bts lL_onaodn1n6u(lclo n_sNto nvnouildl*
       a| b                     ^s
l_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: In file included from warning: s2/s2builderutil_lax_polygon_layer.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:   4296:
 | In file included from  ../src/s2/mutable_s2shape_index.h :f30r:
iIn file included from e/usr/local/clang/include/absl/container/btree_map.hn:d66 :
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.ht: 69l:
oIn file included from g/usr/local/clang/include/absl/container/internal/container_memory.h_:i29n:
tIn file included from e/usr/local/clang/include/absl/hash/hash.hr:n89a:
lIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h::R79e:
g/usr/local/clang/include/absl/base/internal/endian.hi:s254t:e27r:A nwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
niti  a254l | iiznel(iVnLeo gvSoiitde *S taobrsel1_6n(ovnoniudl*l  avb)s;l
_      n| o                                                           ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241p:,22 :u inote: nexpanded from macro 'absl_nonnull't
16  _241t |  #vd)e f{i
n      e|                            ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(conIn file included from ss2/s2builderutil_find_polygon_degeneracies.cct: 18v:
oIn file included from i../src/s2/s2builderutil_find_polygon_degeneracies.hd:*24 :
aIn file included from b../src/s2/s2builder.hs:l35_:
nIn file included from o../src/s2/id_set_lexicon.hn:n28u:
lIn file included from l../src/s2/base/logging.h :p22):
 In file included from {/usr/local/clang/include/absl/log/log.h
:      209| :
                                   ^In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:20/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/absl_vlog_is_on.h::2263::
 /usr/local/clang/include/absl/log/internal/vlog_config.hnote: :expanded from macro 'absl_nonnull'119
:15  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n119e |   a bcsoln_snto ncnhualrl*  _aNbosnln_unloln
n      u| l                     ^l
 const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_lax_polygon_layer.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_lax_polygon_layer.hl:l42
:
      In file included from | ../src/s2/mutable_s2shape_index.h                     ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2builderutil_find_polygon_degeneracies.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2builderutil_find_polygon_degeneracies.h | :#24d:
eIn file included from f../src/s2/s2builder.hi:n36e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
ul/usr/local/clang/include/absl/container/internal/btree_container.hl: 523_:N31o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l
      |                        ^523
 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull/usr/local/clang/include/absl/container/internal/btree_container.h :s522i:n3k:, 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                             ^

/usr/local/clang/include/absl/base/nullability.h:  241522: | 22 :  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eX (aibnssle_rnto_nonru_lals s_iNgonn,n uilnls
e      r| t                     ^_
or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual,In file included from  s2/s2builderutil_get_snapped_winding_delta.ccK:V50a:
lIn file included from u../src/s2/s2builderutil_get_snapped_winding_delta.he:,24 :
MIn file included from V../src/s2/s2builder.ha:l35u:
eIn file included from ,../src/s2/id_set_lexicon.h :.28.:
.In file included from )../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h\:
37      :
| In file included from         ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n524u:l3l:  _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nnul  l524
 |        |                       ^A
BSL_INTERNAIn file included from Ls2/s2builderutil_get_snapped_winding_delta.cc_:X50(:
iIn file included from n../src/s2/s2builderutil_get_snapped_winding_delta.hs:e24r:
tIn file included from _../src/s2/s2builder.ho:r35_:
aIn file included from s../src/s2/id_set_lexicon.hs:i28g:
nIn file included from ,../src/s2/base/logging.h :i21n:
sIn file included from e/usr/local/clang/include/absl/log/check.hr:t37_:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.h_:a21s:
s/usr/local/clang/include/absl/log/internal/check_op.hi:g429n:_31i:m pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 con  s429t |   & ,   cTo1n svt1 ,& ,T
2       | v  ^2
, /usr/local/clang/include/absl/container/internal/btree_container.hc:o509n:s52t:  cnote: hexpanded from macro 'ABSL_INTERNAL_X'a
r*   a509b | s l _ n o n n u l l  AeBxSpLr_tIeNxTtE)R NAABLS_LA_TATTRTIRBIUBTUET_EC_ANPOTIUNRLEIDN_EB;Y
(      t| h                              ^i
s)/usr/local/clang/include/absl/base/nullability.h):,241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _\n
o      n| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.h :_32N:o9n:n unote: lmacro 'ABSL_INTERNAL_IF_false' defined herel

      |                         ^32
 | #define ABSL_INTERNAL_IF_false(if_In file included from ss2/s2builderutil_get_snapped_winding_delta.cca:t50i:
sIn file included from f../src/s2/s2builderutil_get_snapped_winding_delta.hi:e24d:
,In file included from  ../src/s2/s2builder.h.:.35.:
)In file included from  ../src/s2/id_set_lexicon.h_:_28V:
AIn file included from _../src/s2/base/logging.hA:R21G:
SIn file included from _/usr/local/clang/include/absl/log/check.h_:
37      :
| In file included from         ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2builderutil_find_polygon_degeneracies.cc
:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h  :43224 | :
cIn file included from o../src/s2/s2builder.hn:s36t:
 In file included from c../src/s2/mutable_s2shape_index.hh:a30r:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n524o:n3n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
Mak  e524C | h e cAkBOSpLS_tIrNiTnEgR(NTA1L _vX1(,i nT2 vs2e,r
t      _| o            ^r
_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:,  note: iexpanded from macro 'absl_nonnull'n
se  r241t | _#odre_faisnsei ganb_silm_pnlo,n ncuolnls t_ N&o,n ncuolnls
t       | &                     ^,

      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: In file included from note: s2/s2builderutil_get_snapped_winding_delta.ccexpanded from macro 'ABSL_INTERNAL_X':
50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:  24511:
 | In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from A../src/s2/base/logging.hB:S21L:
_In file included from I/usr/local/clang/include/absl/log/check.hN:T37E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hA:L21_:
A/usr/local/clang/include/absl/log/internal/check_op.hT:T433R:I56B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
CAPT  U433R | E D _ B Y ( t h i s ) ) )                                                 \ 
        |                                                     ^ 
 c/usr/local/clang/include/absl/container/internal/common.ho:n31s:t9 :c hnote: amacro 'ABSL_INTERNAL_IF_true' defined herer
* a   b31s | l#_dneofninnuel lA BeSxLp_rItNeTxEtR)N A{L
_      I| F                                                       ^_
tr/usr/local/clang/include/absl/base/nullability.hu:e241(:i22f:_ snote: aexpanded from macro 'absl_nonnull't
is  f241i | e#dd,e f.i.n.e)  aibfs_ls_antoinsnfuileld 
_      N| o        ^n
null
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 | In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from A../src/s2/s2builder.hB:S35L:
_In file included from I../src/s2/id_set_lexicon.hN:T28E:
RIn file included from N../src/s2/base/logging.hA:L21_:
AIn file included from T/usr/local/clang/include/absl/log/check.hT:R37I:
BIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hT:E21_:
C/usr/local/clang/include/absl/log/internal/check_op.hA:P451T:U1R:E Dwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
Y(t  h451i | sA)B)S)L _ L O G _ I N T E R N A L _ D E F I N E _ M A K\E
_      C| H                                              ^~~~E
CK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/container/internal/btree_container.h :527note: :expanded from macro 'absl_nonnull'30
:   warning: 241 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
def  i527n | e   a b s l _ n o n n u l l   _ N o ntnruulel,
       f| a                     ^l
se);
      |                              ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2builderutil_get_snapped_winding_delta.cc::49650::
9In file included from :../src/s2/s2builderutil_get_snapped_winding_delta.h :24note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
../src/s2/s2builder.h:35:
In file included from   ../src/s2/id_set_lexicon.h496: | 28#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.hA:B37S:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hI:N21T:
E/usr/local/clang/include/absl/log/internal/check_op.hR:N451A:L1_:X (warning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
nc/usr/local/clang/include/absl/log/internal/check_op.h,: 450C:a25l:l enote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN',
 K  Q450u | a l ,   M Q uxa,l ,x ,K Vcaolnuset,  cMhVaarl*u ea,b s.l._.n)o n n u l l\)

            | |         ^                        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L526_:L3O:G _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
TERN  A526L | _ D EAFBISNLE__IMNATKEER_NCAHLE_CXK(_iOnPs_eSrTtR_IoNrG__aEsXsTiEgRnN,( iinnts6e4r_tt_)o;r
_      a| s^s
ig/usr/local/clang/include/absl/log/internal/check_op.hn:_449i:m31p:l ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'c
ons  t449  | & ,  ecxotnesrtn  &t,e
m      p| l  ^a
te/usr/local/clang/include/absl/container/internal/btree_container.h :c509o:n52s:t  note: cexpanded from macro 'ABSL_INTERNAL_X'h
ar*   509a | b s l _ n o n n u l lA BMSaLk_eICNhTeEcRkNOApLS_tArTiTnRgI(B U T E\_
C      A| P                              ^T
UR/usr/local/clang/include/absl/base/nullability.hE:D241_:B22Y:( tnote: hexpanded from macro 'absl_nonnull'i
s)  )241, |  # d e f i n e   a b s l _ n o n n u l l   _ N o\n
n      u| l                                                   ^l

      | /usr/local/clang/include/absl/container/internal/common.h                     ^:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #In file included from ds2/s2builderutil_get_snapped_winding_delta.cce:f50i:
nIn file included from e../src/s2/s2builderutil_get_snapped_winding_delta.h :A24B:
SIn file included from L../src/s2/s2builder.h_:I35N:
TIn file included from E../src/s2/id_set_lexicon.hR:N28A:
LIn file included from _../src/s2/base/logging.hI:F21_:
tIn file included from r/usr/local/clang/include/absl/log/check.hu:e37(:
iIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.h_:s21a:
t/usr/local/clang/include/absl/log/internal/check_op.hi:s452f:i1e:d ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].
../usr/local/clang/include/absl/log/internal/check_op.h): 450i:f25_:s anote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
sf  i450e | d 
        |          ^ 
 x, x, const char* abIn file included from ss2/s2builderutil_find_polygon_degeneracies.ccl:_18n:
oIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hn:u24l:
lIn file included from )../src/s2/s2builder.h
:      36| :
                        ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2267::
 /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'526
:3:   241 | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efine   a526b | s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uXl(li
n      s| e                     ^r
t_or_assign, insert_or_assiIn file included from gs2/s2builderutil_get_snapped_winding_delta.ccn:_50i:
mIn file included from p../src/s2/s2builderutil_get_snapped_winding_delta.hl:,24 :
cIn file included from o../src/s2/s2builder.hn:s35t:
 In file included from &../src/s2/id_set_lexicon.h,: 28c:
oIn file included from n../src/s2/base/logging.hs:t21 :
&In file included from ,/usr/local/clang/include/absl/log/check.h
:      37| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
527 | /usr/local/clang/include/absl/log/internal/check_op.h : 453 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      453  |  A B S Lt_rLuOeG,_ IfNaTlEsReN)A;L
_      D| E                  ~~~~~~~~~~~~F
INE/usr/local/clang/include/absl/container/internal/btree_container.h_:M509A:K47E:_ Cnote: Hexpanded from macro 'ABSL_INTERNAL_X'E
CK_O  P509_ | S T R I N G _ E X T EARBNS(Lu_iInNtT6E4R_NtA)L;_
A      T| T^R
IB/usr/local/clang/include/absl/log/internal/check_op.hU:T449E:_31C:A Pnote: Texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'U
RED  _449B | Y ( tehxitse)r)n,  t e m p l a t e   c o n s t   c h a r *   a b s\l
_      n| o                                              ^~~~n
null Ma/usr/local/clang/include/absl/container/internal/btree_container.hk:e526C:h3e:c kwarning: Opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
S/usr/local/clang/include/absl/container/internal/btree_container.ht:r511i:n52g:(  note:  expanded from macro 'ABSL_INTERNAL_X' 
\
      |                                 ^511
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bAsTlT_RnIoBnUnTuEl_lC A_PNToUnRnEuDl_lB
Y      (| t                     ^h
is)))     In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
\In file included from 
../src/s2/base/logging.h      :| 21                                                   ^:

In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/container/internal/common.h37::
32In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h9::21 :
note: /usr/local/clang/include/absl/log/internal/check_op.hmacro 'ABSL_INTERNAL_IF_false' defined here:
453:1:    32 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
ef/usr/local/clang/include/absl/log/internal/check_op.hi:n450e: 25A:B Snote: Lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
IN  T450E | R N A L _ I Fx_,f axl,s ec(oinfs_ts acthiasrf*i eadb,s l._.n.o)n n_u_lVlA)_
A      R| G                        ^S
__/usr/local/clang/include/absl/base/nullability.h
:      241| :        ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOIn file included from Gs2/s2builderutil_find_polygon_degeneracies.cc_:I18N:
TIn file included from E../src/s2/s2builderutil_find_polygon_degeneracies.hR:N24A:
LIn file included from _../src/s2/s2builder.hD:E36F:
IIn file included from N../src/s2/mutable_s2shape_index.hE:_30M:
AIn file included from K/usr/local/clang/include/absl/container/btree_map.hE:_67C:
H/usr/local/clang/include/absl/container/internal/btree_container.hE:C529K:_29O:P _warning: Spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
RING_E  X529T | E R N ( f l o a t ) ; 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h :t449r:u31e:,  note: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'r
ue)  ;449
 |        |                              ^e
xt/usr/local/clang/include/absl/container/internal/btree_container.he:r496n: 9t:e mnote: pmacro 'ABSL_INTERNAL_X' defined herel
ate   496c | o#ndsetf icnhea rA*B SaLb_sIlN_TnEoRnNnAuLl_lX (MFauknecC,h eCcaklOlpeSet,r iKnQgu(a l ,  \M
Q      u| a                              ^l
, /usr/local/clang/include/absl/base/nullability.hK:V241a:l22u:e ,note:  expanded from macro 'absl_nonnull'M
Va  l241u | e#,d e.f.i.n)e   a b s l\_
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h  :241528 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e ab  s528l | _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lX
(      i| n                     ^s
ert_or_assign, insert_or_asIn file included from ss2/s2builderutil_get_snapped_winding_delta.cci:g50n:
_In file included from i../src/s2/s2builderutil_get_snapped_winding_delta.hm:p24l:
,In file included from ../src/s2/s2builder.h :c35o:
nIn file included from s../src/s2/id_set_lexicon.ht: 28&:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :&37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :  ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::455509::152::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    455509 |  | A B S L _ L O G _ I NATBESRLN_AILN_TDEERFNIANLE__AMTATKREI_BCUHTEEC_KC_AOPPT_USRTERDI_NBGY_(EtXhTiEsR)N)(,d o u b l e ) ; 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449 : 31 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
 \
        449|  |                                                    ^ 
 e/usr/local/clang/include/absl/container/internal/common.hx:t31e:r9n:  tnote: emacro 'ABSL_INTERNAL_IF_true' defined herem
pla   t31e |  #cdoenfsitn ec hAaBrS*L _aIbNsTlE_RnNoAnLn_uIlFl_ tMraukee(Cihfe_cskaOtpiSstfriiendg,(  . . .\)
       i| f                              ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: 
expanded from macro 'absl_nonnull'      
|         ^  
241 | #define absl_noIn file included from ns2/s2builderutil_find_polygon_degeneracies.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h_:N24o:
nIn file included from n../src/s2/s2builder.hu:l36l:

In file included from       ../src/s2/mutable_s2shape_index.h| :                     ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:In file included from 3s2/s2builderutil_get_snapped_winding_delta.cc:: 50:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]../src/s2/s2builderutil_get_snapped_winding_delta.h
:24:
In file included from ../src/s2/s2builder.h:35:
  In file included from 528../src/s2/id_set_lexicon.h | : 28 :
AIn file included from B../src/s2/base/logging.hS:L21_:
IIn file included from N/usr/local/clang/include/absl/log/check.hT:E37R:
NIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hL:_21X:
(/usr/local/clang/include/absl/log/internal/check_op.hi:n455s:e1r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_/usr/local/clang/include/absl/log/internal/check_op.ha:s450s:i25g:n ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
ns  e450r | t _ o r _ a sxs,i gxn,_ icmopnls,t  ccohnasrt*  &a,b sclo_nnsotn n&u,l
l      )| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                         ^  
529 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f itnreu ea,b stlr_uneo)n;n
u      l| l                  ~~~~~~~~~~~ 
_No/usr/local/clang/include/absl/container/internal/btree_container.hn:n509u:l47l:
       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  509 |           ABSL_INTERNIn file included from As2/s2builderutil_get_snapped_winding_delta.ccL:_50A:
TIn file included from T../src/s2/s2builderutil_get_snapped_winding_delta.hR:I24B:
UIn file included from T../src/s2/s2builder.hE:_35C:
AIn file included from P../src/s2/id_set_lexicon.hT:U28R:
EIn file included from D../src/s2/base/logging.h_:B21Y:
(In file included from t/usr/local/clang/include/absl/log/check.hh:i37s:
)In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h,: 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 456 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      456  |  A B S L _ L O\G
_      I| N                                              ^~~~T
ERNAL_D/usr/local/clang/include/absl/container/internal/btree_container.hE:F528I:N3E:_ Mwarning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]K
E/usr/local/clang/include/absl/container/internal/btree_container.h_:C511H:E52C:K _note: Oexpanded from macro 'ABSL_INTERNAL_X'P
_ST  R511I | N G _ E X T E R N ( cAhBaSrL)_;I
N      T| E^R
NA/usr/local/clang/include/absl/log/internal/check_op.hL:_449A:T31T:R Inote: Bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'U
TE_  C449A | P T UeRxEtDe_rBnY (ttehmipsl)a)t)e   c o n s t   c h a r *   a b s l _ n o n n u l\l
       M| a                                                   ^k
eC/usr/local/clang/include/absl/container/internal/common.hh:e31c:k9O:p Snote: tmacro 'ABSL_INTERNAL_IF_true' defined herer
ing   (31  |  # d\e
f      i| n                              ^e
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | I#Fd_etfriunee( iafb_ssla_tniosnfniueldl,  _.N.o.n)n uilfl_
s      a| t                     ^i
sfied
      | In file included from         ^s2/s2builderutil_get_snapped_winding_delta.cc
:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from In file included from ../src/s2/base/logging.hs2/s2builderutil_find_polygon_degeneracies.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2builderutil_find_polygon_degeneracies.h::3724:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2builder.h::2136:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/mutable_s2shape_index.h456::301:
:In file included from  /usr/local/clang/include/absl/container/btree_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::450528::253::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  450 |     528  |      AxB,S Lx_,I NcToEnRsNtA Lc_hXa(ri*n saebrstl__onro_nansuslilg)n
,       | i                        ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241_ | i#mdpelf,i nceo nasbts l&_,n ocnonnusltl  &_,N
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll  
529       | |                       ^ 
                true, true)In file included from ;s2/s2builderutil_get_snapped_winding_delta.cc
:      50| :
                  ~~~~~~~~~~~In file included from 
../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2builder.h511::3547:
:In file included from  ../src/s2/id_set_lexicon.h:note: 28expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/base/logging.h:21:
  In file included from 511/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 457A:B1S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TER  N457A | LA_BASTLT_RLIOBGU_TIEN_TCEARPNTAULR_EDDE_FBIYN(Et_hMiAsK)E)_)C H E C K _ O P _ S T R I N G _ E X T E R N ( u n\s
i      g| n                                              ^~~~e
d char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define/usr/local/clang/include/absl/container/internal/btree_container.h :a532b:s24l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
nul  l532  | _ N o n n u l l 
        |                       ^ 
      faIn file included from ls2/s2builderutil_get_snapped_winding_delta.ccs:e50):
;In file included from 
../src/s2/s2builderutil_get_snapped_winding_delta.h      :| 24                       ^:

In file included from ../src/s2/s2builder.h:/usr/local/clang/include/absl/container/internal/btree_container.h35::
496In file included from :../src/s2/id_set_lexicon.h9::28 :
In file included from note: ../src/s2/base/logging.hmacro 'ABSL_INTERNAL_X' defined here:
21:
In file included from /usr/local/clang/include/absl/log/check.h  :49637 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 457A:B1S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
T/usr/local/clang/include/absl/log/internal/check_op.hE:R450N:A25L:_ Xnote: (expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'F
un  c450, |   C a l l e ex,,  KxQ,u aclo,n sMtQ ucahla,r *K Vaablsule_,n oMnVnaullule),
       .| .                        ^.
) /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:         ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN/usr/local/clang/include/absl/container/internal/btree_container.h(:c531o:n3s:t  stdwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
stri  n531g | & ) ;A
B      S| L^_
IN/usr/local/clang/include/absl/log/internal/check_op.hT:E449R:N31A:L _note: Xexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'(
ins  e449r | t _ oerx_taesrsni gtne,m pilnasteer tc_oonrs_ta scshiagrn*_ iambpsll,_ ncoonnnsutl l& ,M a&k&e,C hfeaclksOep,S
t      r| i  ^n
g(/usr/local/clang/include/absl/container/internal/btree_container.h : 509 :\52
:       | note:                               ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:241  :50922 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nAnTuTlRlI B_UNToEn_nCuAlPlT
U      R| E                     ^D
_BY(this)),          In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 35 :
\In file included from 
../src/s2/id_set_lexicon.h      :| 28                                                   ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/container/internal/common.h21::
32In file included from :/usr/local/clang/include/absl/log/check.h9::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hmacro 'ABSL_INTERNAL_IF_false' defined here:
21:
/usr/local/clang/include/absl/log/internal/check_op.h   :32458 | :#1d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e /usr/local/clang/include/absl/log/internal/check_op.hA:B450S:L25_:I Nnote: Texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'E
RN  A450L | _ I F _ f a lxs,e (xi,f _csoantsits fciheadr,*  .a.b.s)l __n_oVnAn_uAlRlG)S
_      _| 
                        ^      
|         ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2builderutil_find_polygon_degeneracies.ccd:e18f:
iIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.he: 24a:
bIn file included from s../src/s2/s2builder.hl:_36n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u531l:l3
:       | warning:                      ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  531 |   ABSL_INTERNAL_X(inserIn file included from ts2/s2builderutil_get_snapped_winding_delta.cc_:o50r:
_In file included from a../src/s2/s2builderutil_get_snapped_winding_delta.hs:s24i:
gIn file included from n../src/s2/s2builder.h,: 35i:
nIn file included from s../src/s2/id_set_lexicon.he:r28t:
_In file included from o../src/s2/base/logging.hr:_21a:
sIn file included from s/usr/local/clang/include/absl/log/check.hi:g37n:
_In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hm:p21l:
,/usr/local/clang/include/absl/log/internal/check_op.h :c459o:n1s:t  warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 &&,   459f | aAlBsSeL,_
L      O| G  ^_
IN/usr/local/clang/include/absl/container/internal/btree_container.hT:E511R:N52A:L _note: Dexpanded from macro 'ABSL_INTERNAL_X'E
FIN  E511_ | M A K E _ C H E C K _AOBPS_LS_TIRNITNEGR_NEAXLT_EARTNT(RcIoBnUsTtE _aCbAsPlT:U:RsEtDr_iBnYg(_tvhiiesw)&))); 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449 : 31 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
      449  |      e\x
t      e| r                                                   ^n
 t/usr/local/clang/include/absl/container/internal/common.he:m32p:l9a:t enote:  macro 'ABSL_INTERNAL_IF_false' defined herec
ons   t32  | c#hdaerf*i naeb sAlB_SnLo_nInNuTlElR NMAaLk_eICFh_efcaklOspeS(tirfi_nsga(t i s f\i
e      d| ,                              ^ 
../usr/local/clang/include/absl/base/nullability.h.:)241 :_22_:V Anote: _expanded from macro 'absl_nonnull'A
RG  S241_ | _#
d      e| f        ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.ccIn file included from :s2/s2builderutil_find_polygon_degeneracies.cc50::
18In file included from :
../src/s2/s2builderutil_get_snapped_winding_delta.hIn file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h24::
24In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2builder.h35::
36In file included from :
../src/s2/id_set_lexicon.hIn file included from :../src/s2/mutable_s2shape_index.h28::
30In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h21::
67In file included from :
/usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/container/internal/btree_container.h37::
534In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h23::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]459
:1:   534warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 /usr/local/clang/include/absl/log/internal/check_op.h : 450 : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |       t r u ex),; 
x      ,|                        ^c
on/usr/local/clang/include/absl/container/internal/btree_container.hs:t496 :c9h:a rnote: *macro 'ABSL_INTERNAL_X' defined here 
abs  l496_ | n#odnenfuilnle) 
A      B| S                        ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'X
(F  u241n | c#,d eCfailnlee ea,b sKlQ_unaoln,n uMlQlu a_lN,o nKnVualllu
e      ,|                       ^M
Value, ...)     \
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);/usr/local/clang/include/absl/container/internal/btree_container.h
:      533| :^3
: /usr/local/clang/include/absl/log/internal/check_op.hwarning: :449passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
31: note:   expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'533
 |     A449B | S L _eIxNtTeErRnN AtLe_mXp(liantsee rcto_nosrt_ acshsairg*n ,a bisnls_enrotn_nourl_la sMsaikgenC_hiemcpklO,p Sctornisntg (& ,   &\&
,       | f                              ^a
ls/usr/local/clang/include/absl/base/nullability.he:,241
:      22| :  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.h
:509:  52241: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e509  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBIn file included from Us2/s2builderutil_get_snapped_winding_delta.ccT:E50_:
CIn file included from A../src/s2/s2builderutil_get_snapped_winding_delta.hP:T24U:
RIn file included from E../src/s2/s2builder.hD:_35B:
YIn file included from (../src/s2/id_set_lexicon.ht:h28i:
sIn file included from )../src/s2/base/logging.h):,21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 460 : 66 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     \460
 |       A| B                                                   ^S
L_/usr/local/clang/include/absl/container/internal/common.hL:O32G:_9I:N Tnote: Emacro 'ABSL_INTERNAL_IF_false' defined hereR
NAL   _32D | E#FdIeNfEi_nMeA KAEB_SCLH_EICNKT_EORPN_ASLT_RIIFN_Gf_aElXsTeE(RiNf(_csoantsits fciheadr,*  .a.b.s)l __n_oVnAn_uAlRlG)S;_
_      
|                                                                        ^| 
        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2builderutil_find_polygon_degeneracies.cc | :#18d:
eIn file included from f../src/s2/s2builderutil_find_polygon_degeneracies.hi:n24e:
 In file included from a../src/s2/s2builder.hb:s36l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 67_:
N/usr/local/clang/include/absl/container/internal/btree_container.ho:n533n:u3l:l 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                     ^

  533 |  In file included from  s2/s2builderutil_get_snapped_winding_delta.ccA:B50S:
LIn file included from _../src/s2/s2builderutil_get_snapped_winding_delta.hI:N24T:
EIn file included from R../src/s2/s2builder.hN:A35L:
_In file included from X../src/s2/id_set_lexicon.h(:i28n:
sIn file included from e../src/s2/base/logging.hr:t21_:
oIn file included from r/usr/local/clang/include/absl/log/check.h_:a37s:
sIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hg:n21,:
 /usr/local/clang/include/absl/log/internal/check_op.hi:n460s:e66r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:_ inote: mexpanded from macro 'absl_nonnull'p
l,   241c | o#ndsetf i&n,e  &a&b,s lf_anlosnen,u
l      l|    ^_
No/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:
       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  511 | In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from A../src/s2/s2builder.hB:S35L:
_In file included from I../src/s2/id_set_lexicon.hN:T28E:
RIn file included from N../src/s2/base/logging.hA:L21_:
AIn file included from T/usr/local/clang/include/absl/log/check.hT:R37I:
BIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hT:E21_:
C/usr/local/clang/include/absl/log/internal/check_op.hA:P460T:U1R:E Dwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
Y(t  h460i | sA)B)S)L _ L O G _ I N T E R N A L _ D E F I N E _ M A K\E
_      C| H                                                   ^E
CK/usr/local/clang/include/absl/container/internal/common.h_:O31P:_9S:T Rnote: Imacro 'ABSL_INTERNAL_IF_true' defined hereN
G_E   X31T | E#RdNe(fcionnes tA BcShLa_rI*N TaEbRsNlA_Ln_oInFn_utlrlu)e;(
i      f| _^s
at/usr/local/clang/include/absl/log/internal/check_op.hi:s450f:i25e:d ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'.
..  )450  | i f _ s a t ixs,f ixe,d 
c      o| n        ^s
t char* absl_noIn file included from ns2/s2builderutil_find_polygon_degeneracies.ccn:u18l:
lIn file included from )../src/s2/s2builderutil_find_polygon_degeneracies.h
:      24| :
                        ^In file included from 
../src/s2/s2builder.h:/usr/local/clang/include/absl/base/nullability.h36::
241In file included from :../src/s2/mutable_s2shape_index.h22::30 :
In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nonnull':
67:
  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 533#:d3e:f iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
 absl  _533n | o n nAuBlSlL __INNoTnEnRuNlAlL
_      X| (                     ^i
nsert_or_assign, insert_oIn file included from rs2/s2builderutil_get_snapped_winding_delta.cc_:a50s:
sIn file included from i../src/s2/s2builderutil_get_snapped_winding_delta.hg:n24_:
iIn file included from m../src/s2/s2builder.hp:l35,:
 In file included from c../src/s2/id_set_lexicon.ho:n28s:
tIn file included from  ../src/s2/base/logging.h&:,21 :
&In file included from &/usr/local/clang/include/absl/log/check.h,: 37f:
aIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hs:e21,:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 461  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
1:   534warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      461  |  A B S L _ L O G _ I N TtErRuNeA)L;_
D      E| F                  ~~~~~I
NE_/usr/local/clang/include/absl/container/internal/btree_container.hM:A511K:E47_:C Hnote: Eexpanded from macro 'ABSL_INTERNAL_X'C
K_OP  _511S | T R I N G _ E X T E RANB(S
L      _| I^N
TE/usr/local/clang/include/absl/log/internal/check_op.hR:N449A:L31_:A Tnote: Texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'R
IBU  T449E | _ C AePxTtUeRrEnD _tBeYm(ptlhaitse) )c)o n s t   c h a r *   a b s l _ n o n n u l l   M\a
k      e| C                                              ^~~~h
eckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     con/usr/local/clang/include/absl/container/internal/btree_container.hs:t536 :s24i:g nwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
 ch  a536r | *   a b s l _ n o n n u l l ) ; 
        | f                       ^a
ls/usr/local/clang/include/absl/base/nullability.he:)241;:
22      :|                         ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h:  496241: | 9#:d enote: fmacro 'ABSL_INTERNAL_X' defined herei
ne   a496b | s#ld_enfoinnneu lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(Func, In file included from Cs2/s2builderutil_get_snapped_winding_delta.cca:l50l:
eIn file included from e../src/s2/s2builderutil_get_snapped_winding_delta.h,: 24K:
QIn file included from u../src/s2/s2builder.ha:l35,:
 In file included from M../src/s2/id_set_lexicon.hQ:u28a:
lIn file included from ,../src/s2/base/logging.h :K21V:
aIn file included from l/usr/local/clang/include/absl/log/check.hu:e37,:
 In file included from M/usr/local/clang/include/absl/log/internal/check_impl.hV:a21l:
u/usr/local/clang/include/absl/log/internal/check_op.he:,462 :.24.:. )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :        ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHEC/usr/local/clang/include/absl/container/internal/btree_container.hK:_535O:P3_:S Twarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
NG_E  X535T | E R NA(B
S      L| _^I
NT/usr/local/clang/include/absl/log/internal/check_op.hE:R450N:A25L:_ Xnote: (expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
ns  e450r | t _ o r _ a sxs,i gxn,,  cionnssetr tc_hoarr_*a sasbisgln__niomnpnlu,l lc)o
n      s| t                        ^ 
&,/usr/local/clang/include/absl/base/nullability.h :&241&:,22 :t rnote: uexpanded from macro 'absl_nonnull'e
,
        241|  |   ^#
de/usr/local/clang/include/absl/container/internal/btree_container.hf:i509n:e52 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_no  n509n | u l l   _ N o n n u lAlB
S      L| _                     ^I
NTERNAL_ATTRIBUTE_CAPTUREDIn file included from _s2/s2builderutil_get_snapped_winding_delta.ccB:Y50(:
tIn file included from h../src/s2/s2builderutil_get_snapped_winding_delta.hi:s24):
)In file included from ,../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h\:
463      :| 1                                                   ^:
 warning: /usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:9:   463note:  | macro 'ABSL_INTERNAL_IF_true' defined hereA
BSL   _31L | O#Gd_eIfNiTnEeR NAABLS_LD_EIFNITNEER_NMAALK_EI_FC_HtErCuKe_(OiPf__SsTaRtIiNsGf_iEeXdT,E R.N.(.
)       | i^f
_s/usr/local/clang/include/absl/log/internal/check_op.ha:t449i:s31f:i enote: dexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

      |         ^
  449 |   extern templaIn file included from ts2/s2builderutil_find_polygon_degeneracies.cce: 18c:
oIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hs:t24 :
cIn file included from h../src/s2/s2builder.ha:r36*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l535 :M3a:k ewarning: C'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
eckOp  S535t | r i nAgB(S L _ I\N
T      E| R                              ^N
AL/usr/local/clang/include/absl/base/nullability.h_:X241(:i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn,e  ianbsselr_tn_oonrn_ualsls i_gNno_ninmuplll,
       c| o                     ^n
st &,In file included from  s2/s2builderutil_get_snapped_winding_delta.cc&:&50,:
 In file included from t../src/s2/s2builderutil_get_snapped_winding_delta.hr:u24e:
,In file included from 
../src/s2/s2builder.h      :| 35  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/id_set_lexicon.h:  28536:
 | In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 464 :f26a:lse) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                   ~~~~~~
  464 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 :c47o:n snote: texpanded from macro 'ABSL_INTERNAL_X' 
uns  i509g | n e d   c h a r *   aAbBsSlL__nIoNnTnEuRlNlA)L;_
A      T| T                         ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T241E:_22C:A Pnote: Texpanded from macro 'absl_nonnull'U
RE  D241_ | B#Yd(etfhiinse) )a,b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
\
      |                                               ^~~~
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h/usr/local/clang/include/absl/container/internal/btree_container.h::24535:
:In file included from 3../src/s2/s2builder.h:: 35:
warning: In file included from ../src/s2/id_set_lexicon.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
28:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/base/logging.h511::2152:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
  511/usr/local/clang/include/absl/log/internal/check_op.h | : 464 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dAeTfTiRnIeB UaTbEs_lC_AnPoTnUnRuElDl_ B_YN(otnhniusl)l)
)       |                       ^ 
     In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h\:
28      :
| In file included from                                                    ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/check.h32::379:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21macro 'ABSL_INTERNAL_IF_false' defined here:

/usr/local/clang/include/absl/log/internal/check_op.h:463:   132: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin  e463  | AABBSSLL__ILNOTGE_RINNATLE_RINFA_Lf_aDlEsFeI(NiEf__MsAaKtEi_sCfHiEeCdK,_ O.P._.S)T R_I_NVGA__EAXRTGESR_N_(

            | |         ^^

/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from In file included from ../src/s2/s2builder.hs2/s2builderutil_get_snapped_winding_delta.cc::3650:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2builderutil_get_snapped_winding_delta.h::3024:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2builder.h::6735:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/id_set_lexicon.h::53828::
23In file included from :../src/s2/base/logging.h :21warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
  In file included from 538/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 465 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       465  | tArBuSeL)_;L
O      G| _                      ^I
NT/usr/local/clang/include/absl/container/internal/btree_container.hE:R496N:A9L:_ Dnote: Emacro 'ABSL_INTERNAL_X' defined hereF
INE  _496M | A#KdEe_fCiHnEeC KA_BOSPL__SITNRTIENRGN_AELX_TXE(RFNu(ncco,n sCta lvloeied,*  KaQbusall_,n oMnQnuualll,) ;K
V      a| l^u
e,/usr/local/clang/include/absl/log/internal/check_op.h :M449V:a31l:u enote: ,expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
...  )449  |      e x\t
e      r| n        ^ 
template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:/usr/local/clang/include/absl/container/internal/btree_container.h24::
537In file included from :../src/s2/s2builder.h3::35 :
In file included from warning: ../src/s2/id_set_lexicon.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]28
:
In file included from ../src/s2/base/logging.h:21  :
537In file included from  | /usr/local/clang/include/absl/log/check.h : 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hL:_21I:
N/usr/local/clang/include/absl/log/internal/check_op.hT:E465R:N66A:L _warning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
ins  e465r | tA_BoSrL__aLsOsGi_gInN,T EiRnNsAeLr_tD_EoFrI_NaEs_sMiAgKnE__iCmHpElC,K _cOoPn_sStT R&I,N G&_&E,X TtErRuNe(,c
o      n| s  ^t
 v/usr/local/clang/include/absl/container/internal/btree_container.ho:i509d:*52 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_no  n509n | u l l ) ; 
        |                                                                   ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | A#TdTeRfIiBnUeT Ea_bCsAlP_TnUoRnEnDu_lBlY (_tNhoinsn)u)l,l 
        |                       ^ 
        In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h\:
35      :
| In file included from                                                    ^../src/s2/id_set_lexicon.h
:28:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/base/logging.h31::219:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21   :
31/usr/local/clang/include/absl/log/internal/check_op.h | :#465d:e66f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | I#Fd_etfriunee( iafb_ssla_tniosnfniueldl,  _.N.o.n)n uilfl_
s      a| t                     ^i
sfied
      |         ^In file included from 
s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from In file included from ../src/s2/base/logging.hs2/s2builderutil_find_polygon_degeneracies.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2builderutil_find_polygon_degeneracies.h::3724:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2builder.h::2136:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/mutable_s2shape_index.h465::301:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/container/internal/btree_container.h:537:  3465: |  Awarning: B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]S
L_LOG  _537I | N T EARBNSALL__IDNETFEIRNNEA_LM_AXK(Ei_nCsHeErCtK__oOrP__aSsTsRiIgNnG,_ EiXnTsEeRrNt(_coorn_sats sviogind_*i mapbls,l _cnoonnsntu l&l,) ;&
&      ,|  ^t
ru/usr/local/clang/include/absl/log/internal/check_op.he:,450
:      25| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
note:   expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'538
 |     450  |              x ,   x ,   c o ntsrtu ec)h;a
r      *|                    ~~~~~a
bsl/usr/local/clang/include/absl/container/internal/btree_container.h_:n509o:n47n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X')

      |                         ^  
509 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: In file included from expanded from macro 'ABSL_INTERNAL_X's2/s2builderutil_get_snapped_winding_delta.cc
:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h  :51124 | :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
AIn file included from B../src/s2/base/logging.hS:L21_:
IIn file included from N/usr/local/clang/include/absl/log/check.hT:E37R:
NIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hL:_21A:
T/usr/local/clang/include/absl/log/internal/check_op.hT:R502I:B1U:T Ewarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C
APT  U502R | EADB_SBLY_(LtOhGi_sI)N)T)E R N A L _ C H E C K _ O P _ I M P L ( C h e c k\_
E      Q| ,                                                   ^ 
==/usr/local/clang/include/absl/container/internal/common.h):
31      :| 9^:
 note: /usr/local/clang/include/absl/log/internal/check_op.hmacro 'ABSL_INTERNAL_IF_true' defined here:
488:32:    31 | note: #expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'd
efi  n488e |   A BiSnLl_iInNeT EcRoNnAsLt_eIxFp_rt rcuoen(sitf _cshaatri*s faibesdl,_ n.u.l.l)a bilfe_ snaatmies#f#iIemdp
l      (|          ^ 
               In file included from  s2/s2builderutil_find_polygon_degeneracies.cc :\18
:
      In file included from | ../src/s2/s2builderutil_find_polygon_degeneracies.h                               ^:
24:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builder.h::25736::
23In file included from :../src/s2/mutable_s2shape_index.h :30note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67  :
257 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d537e:f3i:n ewarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
bsl_n  u537l | l a bAlBeS L__NIuNlTlEaRbNlAeL
_      X| (                      ^i
nsert_or_assIn file included from is2/s2builderutil_get_snapped_winding_delta.ccg:n50,:
 In file included from i../src/s2/s2builderutil_get_snapped_winding_delta.hn:s24e:
rIn file included from t../src/s2/s2builder.h_:o35r:
_In file included from a../src/s2/id_set_lexicon.hs:s28i:
gIn file included from n../src/s2/base/logging.h_:i21m:
pIn file included from l/usr/local/clang/include/absl/log/check.h,: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
&/usr/local/clang/include/absl/log/internal/check_op.h,: 502&:&1,:  twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e,/usr/local/clang/include/absl/log/internal/check_op.h
:      489| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~47
:   note: 538expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' | 
      489  |              c o n s t   Tt1r&u ev)1;,
       c| o                  ~~~~~n
st /usr/local/clang/include/absl/container/internal/btree_container.hT:2511&: 47v:2 ,note:  expanded from macro 'ABSL_INTERNAL_X'c
ons  t511  | c h a r *   a b s l _AnBoSnLn_uIlNlT EeRxNpArLt_eAxTtT)R I{B U T E _ C\A
P      T| U                                              ^R
ED/usr/local/clang/include/absl/base/nullability.h_:B241Y:(22t:h inote: sexpanded from macro 'absl_nonnull')
))   241  |  # d e f i n e   a b s l _ n o n n u l l   _\N
o      n| n                                              ^~~~u
ll
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |              In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from f../src/s2/s2builderutil_get_snapped_winding_delta.ha:l24s:
eIn file included from )../src/s2/s2builder.h;:
35      :
| In file included from                        ^../src/s2/id_set_lexicon.h
:28:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/base/logging.h496::219:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37macro 'ABSL_INTERNAL_X' defined here:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
496 | /usr/local/clang/include/absl/log/internal/check_op.h#:d502e:f1i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
BS/usr/local/clang/include/absl/log/internal/check_op.hL:_497I:N32T:E Rnote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'A
L_X(  F497u | n c ,i nClailnlee ec,o nKsQtueaxlp,r  McQounaslt,  cKhVaarl*u ea,b sMlV_anluulel,a b.l.e. )n a m e # #\I
m      p| l        ^(
                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1/usr/local/clang/include/absl/container/internal/btree_container.h,: 540i:n3t:  vwarning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
 con  s540t |   c hAaBrS*L _aIbNsTlE_RnNoAnLn_uXl(li nesxeprrtt_eoxrt_)a s{s i g n ,   i n s e r t _ o r _ a s\s
i      g| n                                  ^_
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22&:& ,note:  expanded from macro 'absl_nonnull'c
on  s241t |  #&d,e ffianles ea,b
s      l| _  ^n
on/usr/local/clang/include/absl/container/internal/btree_container.hn:u509l:l52 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l509
 |        |                       ^ 
       ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTUIn file included from Rs2/s2builderutil_get_snapped_winding_delta.ccE:D50_:
BIn file included from Y../src/s2/s2builderutil_get_snapped_winding_delta.h(:t24h:
iIn file included from s../src/s2/s2builder.h):)35,:
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h : 503\:
1      :|                                                     ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:31:9  :503  | note: Amacro 'ABSL_INTERNAL_IF_true' defined hereB
S   L31_ | L#OdGe_fIiNnTeE RANBASLL__CIHNETCEKR_NOAPL__IIMFP_Lt(rCuhee(cikf__NsEa,t i!s=f)i
e      d| ,^ 
.../usr/local/clang/include/absl/log/internal/check_op.h): 488i:f32_:s anote: texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
sfi  e488d | 
        | i        ^n
line constexpr constIn file included from  s2/s2builderutil_find_polygon_degeneracies.ccc:h18a:
rIn file included from *../src/s2/s2builderutil_find_polygon_degeneracies.h :a24b:
sIn file included from l../src/s2/s2builder.h_:n36u:
lIn file included from l../src/s2/mutable_s2shape_index.ha:b30l:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.hn:a67m:
e/usr/local/clang/include/absl/container/internal/btree_container.h#:#546I:m3p:l (warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        546  |      A B S L _ I N T\E
R      N| A                               ^L
_X/usr/local/clang/include/absl/base/nullability.h(:i257n:s23e:r tnote: _expanded from macro 'absl_nullable'o
r_  a257s | s#idgenf,i nien saebrstl__onru_lalsasbilgen __iNmuplll,a b&l&e,
       c| o                      ^n
st &, true,
      | In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s2/s2builderutil_get_snapped_winding_delta.cc
:50  :
547In file included from  | ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
tIn file included from r/usr/local/clang/include/absl/log/check.hu:e37):
;In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                  ~~~~~:

/usr/local/clang/include/absl/log/internal/check_op.h:503:/usr/local/clang/include/absl/container/internal/btree_container.h1::509 :47warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'ABSL_INTERNAL_X':
489:47:   509note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      489  |         A B ScLo_nIsNtT ETR1N&A Lv_1A,T TcRoInBsUtT ET_2C&A PvT2U,R EcDo_nBsYt( tchhiasr)*) ,a b s l _ n o n n u l l   e x p r t e x t )   {  \ 
        |                                                ^~~~\

      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/container/internal/btree_container.h::22546:: 3:note:  expanded from macro 'absl_nonnull'
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
241 | /usr/local/clang/include/absl/container/internal/btree_container.h:511#:d52e:f inote: nexpanded from macro 'ABSL_INTERNAL_X'e
 ab  s511l | _ n o n n u l l   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfIn file included from is2/s2builderutil_get_snapped_winding_delta.cce:d50
:
      In file included from | ../src/s2/s2builderutil_get_snapped_winding_delta.h        ^:
24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from /usr/local/clang/include/absl/log/check.hs2/s2builderutil_find_polygon_degeneracies.cc::3718:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2builderutil_find_polygon_degeneracies.h::2124:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2builder.h::50336::
1In file included from :../src/s2/mutable_s2shape_index.h :30warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h497::54632::3 : note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  497   | 546  |   i nAlBiSnLe_ IcNoTnEsRtNeAxLp_rX (cionnssetr tc_hoarr_*a sasbisgln_,n uilnlsaebrlte_ onra_maes#s#iIgmnp_li(m p l ,   & & ,   c o n s t   & ,   t r\u
e      ,| 
                               ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/base/nullability.h:257  :54723 | :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a btsrlu_en)u;l
l      a| b                  ~~~~~l
e _/usr/local/clang/include/absl/container/internal/btree_container.hN:u511l:l47a:b lnote: eexpanded from macro 'ABSL_INTERNAL_X'

      |                       ^
  511 |       In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
AIn file included from B../src/s2/s2builderutil_get_snapped_winding_delta.hS:L24_:
IIn file included from N../src/s2/s2builder.hT:E35R:
NIn file included from A../src/s2/id_set_lexicon.hL:_28A:
TIn file included from T../src/s2/base/logging.hR:I21B:
UIn file included from T/usr/local/clang/include/absl/log/check.hE:_37C:
AIn file included from P/usr/local/clang/include/absl/log/internal/check_impl.hT:U21R:
E/usr/local/clang/include/absl/log/internal/check_op.hD:_503B:Y1(:t hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
))/usr/local/clang/include/absl/log/internal/check_op.h): 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      498  |              i n t   v\1
,       | i                                              ^~~~n
t v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) In file included from _s2/s2builderutil_get_snapped_winding_delta.cc_:V50A:
_In file included from A../src/s2/s2builderutil_get_snapped_winding_delta.hR:G24S:
_In file included from _../src/s2/s2builder.h
:      35| :
        ^In file included from 
../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2builderutil_find_polygon_degeneracies.cc::2118:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2builderutil_find_polygon_degeneracies.h::50424::
1In file included from :../src/s2/s2builder.h :36warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :50467 | :
A/usr/local/clang/include/absl/container/internal/btree_container.hB:S551L:_3L:O Gwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
NTE  R551N | A L _ACBHSELC_KI_NOTPE_RINMAPLL_(XC(hiencske_rLtE_,o r<_=a)s
s      i| g^n
, /usr/local/clang/include/absl/log/internal/check_op.hi:n488s:e32r:t _note: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'r
_as  s488i | g n _iinmlpiln,e  &c&o,n s&t&e,x pfra lcsoen,s tt rcuhea)r;*
       a| b  ^s
l_/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l52a:b lnote: eexpanded from macro 'ABSL_INTERNAL_X' 
nam  e511# | # I m p l (          A B S L _ I N T E R N A L _ A\T
T      R| I                               ^B
UT/usr/local/clang/include/absl/base/nullability.hE:_257C:A23P:T Unote: Rexpanded from macro 'absl_nullable'E
D_  B257Y | (#tdheifsi)n)e)  a b s l _ n u l l a b l e   _ N u l l a b l e 
\      
|                             ^| 
                                                   ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
In file included from    s2/s2builderutil_get_snapped_winding_delta.cc31: | 50#:
dIn file included from e../src/s2/s2builderutil_get_snapped_winding_delta.hf:i24n:
eIn file included from  ../src/s2/s2builder.hA:B35S:
LIn file included from _../src/s2/id_set_lexicon.hI:N28T:
EIn file included from R../src/s2/base/logging.hN:A21L:
_In file included from I/usr/local/clang/include/absl/log/check.hF:_37t:
rIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.he:(21i:
f/usr/local/clang/include/absl/log/internal/check_op.h_:s504a:t1i:s fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
d,/usr/local/clang/include/absl/log/internal/check_op.h :.489.:.47):  inote: fexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
sat  i489s | f i e d 
        | c        ^o
nst T1& v1, const In file included from Ts2/s2builderutil_find_polygon_degeneracies.cc2:&18 :
vIn file included from 2../src/s2/s2builderutil_find_polygon_degeneracies.h,: 24c:
oIn file included from n../src/s2/s2builder.hs:t36 :
cIn file included from h../src/s2/mutable_s2shape_index.ha:r30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s67l:
_/usr/local/clang/include/absl/container/internal/btree_container.hn:o551n:n3u:l lwarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
xprtex  t551) |   {  A B S L _\I
N      T| E                                              ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241X:(22i:n snote: eexpanded from macro 'absl_nonnull'r
t_  o241r | _#adsesfiignne,  aibnssle_rnto_nonru_lals s_iNgonn_niumlpll
,       | &                     ^&
, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(          /usr/local/clang/include/absl/container/internal/btree_container.h : 552 : 79 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
\
      |                                  ^552
 |  /usr/local/clang/include/absl/base/nullability.h :A257B:S23L:_ Inote: Nexpanded from macro 'absl_nullable'T
ER  N257A | L#_dXe(fiinnsee ratb_solr__nauslsliagbnl,e  i_nNsuelrlta_bolre_
a      s| s                      ^i
gn_impl, &In file included from &s2/s2builderutil_get_snapped_winding_delta.cc,: 50&:
&In file included from ,../src/s2/s2builderutil_get_snapped_winding_delta.h :t24r:
uIn file included from e../src/s2/s2builder.h,: 35f:
aIn file included from l../src/s2/id_set_lexicon.hs:e28):
;In file included from 
../src/s2/base/logging.h      :| 21                                                                              ^:

In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/container/internal/btree_container.h37::
496In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h9::21 :
note: /usr/local/clang/include/absl/log/internal/check_op.hmacro 'ABSL_INTERNAL_X' defined here:
504:1:   496warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
de/usr/local/clang/include/absl/log/internal/check_op.hf:i498n:e35 :A Bnote: Sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'L
_INT  E498R | N A L _ X ( Fiunntc ,v 1C,a lilnete ,v 2K,Q ucaoln,s tM Qcuhaalr,*  KaVbasllu_en,o nMnVualllu ee,x p.r.t.e)x t )   {  \ 
        |          ^ 
           \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTEIn file included from Rs2/s2builderutil_get_snapped_winding_delta.ccN:A50L:
_In file included from X../src/s2/s2builderutil_get_snapped_winding_delta.h(:i24n:
sIn file included from e../src/s2/s2builder.hr:t35_:
oIn file included from r../src/s2/id_set_lexicon.h_:a28s:
sIn file included from i../src/s2/base/logging.hg:n21,:
 In file included from i/usr/local/clang/include/absl/log/check.hn:s37e:
rIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h_:o21r:
_/usr/local/clang/include/absl/log/internal/check_op.ha:s505s:i1g:n _warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]m
pl,   505& | &A,B S&L&_,L OtGr_uIeN,T EtRrNuAeL)_;C
H      E| C  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~K
_OP/usr/local/clang/include/absl/container/internal/btree_container.h_:I509M:P47: Lnote: (expanded from macro 'ABSL_INTERNAL_X'C
heck  _509L | T ,   < ) 
        |  ^ 
 AB/usr/local/clang/include/absl/log/internal/check_op.hS:L488_:I32N:T Enote: Rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
AL_  A488T | T R IiBnUlTiEn_eC AcPoTnUsRtEeDx_pBrY (ctohnisst) )c,h a r *   a b s l _ n u l l a b l e   n a m e # #\I
m      p| l                                              ^~~~(
        /usr/local/clang/include/absl/container/internal/btree_container.h : 553 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/btree_container.h :\511
:      52| :                               ^ 
note: expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/base/nullability.h:257:23  :511  | note:  expanded from macro 'absl_nullable' 
     257  |  # d e fAiBnSeL _aIbNsTlE_RnNuAlLl_aAbTlTeR I_BNUuTlEl_aCbAlPeT
U      R| E                      ^D
_BY(this)))   In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h\:
21      :
| In file included from                                                    ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h31::219:
:/usr/local/clang/include/absl/log/internal/check_op.h :505note: :macro 'ABSL_INTERNAL_IF_true' defined here1
: warning:    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e489f:i47n:e  note: Aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'B
SL_  I489N | T E R N A L _cIoFn_sttr uTe1(&i fv_1s,a tciosnfsite dT,2 &. .v.2),  icfo_nssatt icshfaire*d 
a      b| s        ^l
_nonnull exprIn file included from ts2/s2builderutil_find_polygon_degeneracies.cce:x18t:
)In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h{: 24 :
 In file included from  ../src/s2/s2builder.h :\36
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                              ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22:/usr/local/clang/include/absl/container/internal/btree_container.h :553note: :expanded from macro 'absl_nonnull'3
:   warning: 241'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
#defi  n553e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
\In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                              ^~~~:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {   /usr/local/clang/include/absl/container/internal/btree_container.h : 555 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       555\ | 
        | A                                  ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_X  (241i | n#sdeerfti_noer _aabsssli_gnno,n niunlsle r_tN_oonrn_ualsls
i      g| n                     ^_
hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |         In file included from  s2/s2builderutil_get_snapped_winding_delta.cc :A50B:
SIn file included from L../src/s2/s2builderutil_get_snapped_winding_delta.h_:I24N:
TIn file included from E../src/s2/s2builder.hR:N35A:
LIn file included from _../src/s2/id_set_lexicon.hA:T28T:
RIn file included from I../src/s2/base/logging.hB:U21T:
EIn file included from _/usr/local/clang/include/absl/log/check.hC:A37P:
TIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hR:E21D:
_/usr/local/clang/include/absl/log/internal/check_op.hB:Y506(:t1h:i swarning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
)     506  |  A B S L _ L O G _ I N T E R N A L _ C H\E
C      K| _                                              ^~~~O
P_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       con/usr/local/clang/include/absl/container/internal/btree_container.hs:t561 :T31:&  warning: vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]1
, co  n561s | t   TA2B&S Lv_2I,N TcEoRnNsAtL _cXh(airn*s earbts_lo_rn_oansnsuilgln ,e xipnrsteerxtt_)o r{_ a s s i g\n
_      h| i                                              ^n
t_/usr/local/clang/include/absl/base/nullability.hi:m241p:l22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241& | ,#
d      e| f  ^i
ne/usr/local/clang/include/absl/container/internal/btree_container.h :a509b:s52l:_ nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l509  | _ N o n n u l l 
        | A                     ^B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_tIn file included from rs2/s2builderutil_get_snapped_winding_delta.ccu:e50(:
iIn file included from f../src/s2/s2builderutil_get_snapped_winding_delta.h_:s24a:
tIn file included from i../src/s2/s2builder.hs:f35i:
eIn file included from d../src/s2/id_set_lexicon.h,: 28.:
.In file included from .../src/s2/base/logging.h): 21i:
fIn file included from _/usr/local/clang/include/absl/log/check.hs:a37t:
iIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hf:i21e:
d/usr/local/clang/include/absl/log/internal/check_op.h
:      506| :        ^1
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2/s2builderutil_find_polygon_degeneracies.cc497: | 18 :
 In file included from i../src/s2/s2builderutil_find_polygon_degeneracies.hn:l24i:
nIn file included from e../src/s2/s2builder.h :c36o:
nIn file included from s../src/s2/mutable_s2shape_index.ht:e30x:
pIn file included from r/usr/local/clang/include/absl/container/btree_map.h :c67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hs:t561 :c3h:a rwarning: *'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
absl_  n561u | l l aAbBlSeL _nIaNmTeE#R#NIAmLp_lX(( i n s e r t _ o r _ a s s i g n ,   i\n
s      e| r                               ^t
_o/usr/local/clang/include/absl/base/nullability.hr:_257a:s23s:i gnote: nexpanded from macro 'absl_nullable'_
hi  n257t | _#idmepfli,n ec oanbsstl _&n,u
l      l| a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
le   562_ | N u l l a b l e 
        |                        ^ 
      conIn file included from ss2/s2builderutil_get_snapped_winding_delta.cct: 50&:
,In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.ht:r24u:
eIn file included from ,../src/s2/s2builder.h :f35a:
lIn file included from s../src/s2/id_set_lexicon.he:,28
:
      In file included from | ../src/s2/base/logging.h                  ~~~~~~~~~~~~~~~~~~~~~:
21:
In file included from /usr/local/clang/include/absl/log/check.h  :56337 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 506 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h :c498o:n35s:t _note: iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
era  t498o | r ( h i n t )i nAtB SvL1_,I NiTnEtR NvA2L,_ CcOoMnMsAt) ;c
h      a| r                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
 ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l e  x509p | r t e x t )   {      A B S L _ I N T E R N A L _ A\T
T      R| I                                  ^B
UT/usr/local/clang/include/absl/base/nullability.hE:_241C:A22P:T Unote: Rexpanded from macro 'absl_nonnull'E
D_  B241Y | (#tdheifsi)n)e,  a b s l _ n o n n u l l   _ N o n n u l l 
        | \                     ^

      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_In file included from As2/s2builderutil_get_snapped_winding_delta.ccT:T50R:
IIn file included from B../src/s2/s2builderutil_get_snapped_winding_delta.hU:T24E:
_In file included from C../src/s2/s2builder.hA:P35T:
UIn file included from R../src/s2/id_set_lexicon.hE:D28_:
BIn file included from Y../src/s2/base/logging.h(:t21h:
iIn file included from s/usr/local/clang/include/absl/log/check.h):)37):
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 507 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      507  |  A B S L\_
L      O| G                                              ^~~~_
INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, /usr/local/clang/include/absl/container/internal/btree_container.hc:o568n:s3t:  cwarning: hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
r* a  b568s | l _ nAoBnSnLu_lIlN TeExRpNrAtLe_xXt()i n{s e r t _ o\r
_      a| s                                              ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,241 :i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn_eh iabnstl__inmopnln,u lclo n_sNto n&n,u l&l&
,      
|                            ^| 
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABIn file included from Ss2/s2builderutil_get_snapped_winding_delta.ccL:_50I:
NIn file included from T../src/s2/s2builderutil_get_snapped_winding_delta.hE:R24N:
AIn file included from L../src/s2/s2builder.h_:I35F:
_In file included from f../src/s2/id_set_lexicon.ha:l28s:
eIn file included from (../src/s2/base/logging.hi:f21_:
sIn file included from a/usr/local/clang/include/absl/log/check.ht:i37s:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.he:d21,:
 /usr/local/clang/include/absl/log/internal/check_op.h.:.507.:)1 :_ _warning: Vtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
_A/usr/local/clang/include/absl/log/internal/check_op.hR:G497S:_32_:
       | note:         ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  497 |   inlIn file included from is2/s2builderutil_find_polygon_degeneracies.ccn:e18 :
cIn file included from o../src/s2/s2builderutil_find_polygon_degeneracies.hn:s24t:
eIn file included from x../src/s2/s2builder.hp:r36 :
cIn file included from o../src/s2/mutable_s2shape_index.hn:s30t:
 In file included from c/usr/local/clang/include/absl/container/btree_map.hh:a67r:
*/usr/local/clang/include/absl/container/internal/btree_container.h :a568b:s3l:_ nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
labl  e568  | n a mAeB#S#LI_mIpNlT(E R N A L _ X ( in s e r t _ o r _ a s s\i
g      n| ,                               ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e257r:t23_:o rnote: _expanded from macro 'absl_nullable'a
ss  i257g | n#_dheinfti_niem palb,s lc_onnusltl a&b,l e& &_,N
u      l| l  ^a
bl/usr/local/clang/include/absl/container/internal/btree_container.he:
511      :| 52                      ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  511 |  In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
AIn file included from B../src/s2/s2builder.hS:L35_:
IIn file included from N../src/s2/id_set_lexicon.hT:E28R:
NIn file included from A../src/s2/base/logging.hL:_21A:
TIn file included from T/usr/local/clang/include/absl/log/check.hR:I37B:
UIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:_21C:
A/usr/local/clang/include/absl/log/internal/check_op.hP:T507U:R1E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(t/usr/local/clang/include/absl/log/internal/check_op.hh:i498s:)35):)  note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      498  |              i n t   v 1 ,   i n\t
       v| 2                                                   ^,
 c/usr/local/clang/include/absl/container/internal/common.ho:n32s:t9 :c hnote: amacro 'ABSL_INTERNAL_IF_false' defined herer
* a   b32s | l#_dneofninnuel lA BeSxLp_rItNeTxEtR)N A{L _ I F _ f a l s e ( i f _ s a t i\s
f      i| e                                  ^d
, /usr/local/clang/include/absl/base/nullability.h.:.241.:)22 :_ _note: Vexpanded from macro 'absl_nonnull'A
_A  R241G | S#_d_e
f      i| n        ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTEIn file included from Rs2/s2builderutil_get_snapped_winding_delta.ccN:A50L:
_In file included from I../src/s2/s2builderutil_get_snapped_winding_delta.hF:_24t:
rIn file included from u../src/s2/s2builder.he:(35i:
fIn file included from _../src/s2/id_set_lexicon.hs:a28t:
iIn file included from s../src/s2/base/logging.hf:i21e:
dIn file included from ,/usr/local/clang/include/absl/log/check.h :.37.:
.In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h :i21f:
_/usr/local/clang/include/absl/log/internal/check_op.hs:a511t:i13s:f iwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d

      |         ^  
511 | const char* absl_nIn file included from us2/s2builderutil_find_polygon_degeneracies.ccl:l18a:
bIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.he: 24C:
hIn file included from e../src/s2/s2builder.hc:k36s:
tIn file included from r../src/s2/mutable_s2shape_index.hc:m30p:
tIn file included from r/usr/local/clang/include/absl/container/btree_map.hu:e67I:
m/usr/local/clang/include/absl/container/internal/btree_container.hp:l572(:
3      :|              ^
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/base/nullability.h:257:23:   note: 572expanded from macro 'absl_nullable' | 
    A257B | S#Ld_eIfNiTnEeR NaAbLs_lX_(niunlslearbtl_eo r__Nauslsliagbnl,e 
i      n| s                      ^e
rt_or_aIn file included from ss2/s2builderutil_get_snapped_winding_delta.ccs:i50g:
nIn file included from _../src/s2/s2builderutil_get_snapped_winding_delta.hh:i24n:
tIn file included from _../src/s2/s2builder.hi:m35p:
lIn file included from ,../src/s2/id_set_lexicon.h :c28o:
nIn file included from s../src/s2/base/logging.ht: 21&:
,In file included from  /usr/local/clang/include/absl/log/check.h&:&37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~21
:
/usr/local/clang/include/absl/log/internal/check_op.h:512  :57317 | :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      512  |          c o n s tt rcuhea,r *f aalbssel,_ ncuolnlsatb_liet esr1a,t ocro(nhsitn tc)h aArB*S La_bIsNlT_EnRuNlAlLa_bClOeM MsA2),;

            | |                 ^                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/usr/local/clang/include/absl/base/nullability.h:257/usr/local/clang/include/absl/container/internal/btree_container.h::23509:: 47:note:  expanded from macro 'absl_nullable'note: 
expanded from macro 'ABSL_INTERNAL_X'
  257 | #  d509e | f i n e   a b s l _ nAuBlSlLa_bIlNeT E_RNNuAlLl_aAbTlTeR
I      B| U                      ^T
E_CAPTURED_In file included from Bs2/s2builderutil_get_snapped_winding_delta.ccY:(50t:
hIn file included from i../src/s2/s2builderutil_get_snapped_winding_delta.hs:)24):
,In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
\/usr/local/clang/include/absl/log/internal/check_op.h
:      512| :                                              ^~~~47
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/container/internal/btree_container.h512: | 572 : 3 :  cwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
s/usr/local/clang/include/absl/container/internal/btree_container.ht: 511c:h52a:r *note:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _511n | u l l a b l e   s 1 ,A BcSoLn_sItN TcEhRaNrA*L _aAbTsTlR_InBuUlTlEa_bClAeP TsU2R,E
D      _| B                                              ^Y
(t/usr/local/clang/include/absl/base/nullability.hh:i257s:)23):)  note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l\a
b      l| e                                                   ^ 
_N/usr/local/clang/include/absl/container/internal/common.hu:l32l:a9b:l enote: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                       ^
   32 | #defIn file included from is2/s2builderutil_get_snapped_winding_delta.ccn:e50 :
AIn file included from B../src/s2/s2builderutil_get_snapped_winding_delta.hS:L24_:
IIn file included from N../src/s2/s2builder.hT:E35R:
NIn file included from A../src/s2/id_set_lexicon.hL:_28I:
FIn file included from _../src/s2/base/logging.hf:a21l:
sIn file included from e/usr/local/clang/include/absl/log/check.h(:i37f:
_In file included from s/usr/local/clang/include/absl/log/internal/check_impl.ha:t21i:
s/usr/local/clang/include/absl/log/internal/check_op.hf:i513e:d17,:  .warning: .type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].
)   _513_ | V A _ A RcGoSn_s_t
       c| h        ^a
r* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from In file included from ../src/s2/s2builder.hs2/s2builderutil_find_polygon_degeneracies.cc::3518:
:
In file included from In file included from ../src/s2/id_set_lexicon.h../src/s2/s2builderutil_find_polygon_degeneracies.h::2824:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2builder.h::2136:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/mutable_s2shape_index.h::3730:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/btree_map.h::2167:
:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/container/internal/btree_container.h515::57417::3 : warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  515 |    574  |     cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_innuslelratb_loer _sa1s,s icgonn,s ti ncshearrt*_ oarb_sals_sniuglnl_ahbilnet _si2m,p
l      ,|                  ^c
onst/usr/local/clang/include/absl/base/nullability.h :&257,: 23&:& ,note: 
expanded from macro 'absl_nullable'      
|   ^  
257 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e509f:i52n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n509u | l l a b l e   _ N u lAlBaSbLl_eI
N      T| E                      ^R
NAL_ATTIn file included from Rs2/s2builderutil_get_snapped_winding_delta.ccI:B50U:
TIn file included from E../src/s2/s2builderutil_get_snapped_winding_delta.h_:C24A:
PIn file included from T../src/s2/s2builder.hU:R35E:
DIn file included from _../src/s2/id_set_lexicon.hB:Y28(:
tIn file included from h../src/s2/base/logging.hi:s21):
)In file included from ,/usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 515 : 47 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      515  |   \ 
        | c                                                   ^o
ns/usr/local/clang/include/absl/container/internal/common.ht: 31c:h9a:r *note:  macro 'ABSL_INTERNAL_IF_true' defined herea
bsl   _31n | u#ldleafbilnee  sA1B,S Lc_oInNsTtE RcNhAaLr_*I Fa_btsrlu_en(uilfl_asbaltei ssf2i,e
d      ,|                                                ^.
../usr/local/clang/include/absl/base/nullability.h): 257i:f23_:s anote: texpanded from macro 'absl_nullable'i
sf  i257e | d#
d      e| f        ^i
ne absl_nullablIn file included from es2/s2builderutil_find_polygon_degeneracies.cc :_18N:
uIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.hl:a24b:
lIn file included from e../src/s2/s2builder.h
:      36| :
                      ^In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2builderutil_get_snapped_winding_delta.cc::57450::
3In file included from :../src/s2/s2builderutil_get_snapped_winding_delta.h :24warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28  :
574In file included from  | ../src/s2/base/logging.h : 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
A/usr/local/clang/include/absl/log/internal/check_op.hL:_516X:(17i:n swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
t_  o516r | _ a s s icgonn,s ti ncshearrt*_ oarb_sals_sniognnn_uhliln te_xipmrptle,x tc)o;n
s      t|                  ^&
, /usr/local/clang/include/absl/base/nullability.h&:&241,:
22      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~note: 
expanded from macro 'absl_nonnull'
    575241 |  |  # d e f i n e   a b s l _ n o n n utlrlu e_,N otnrnuuel,l 
c      o| n                     ^s
t_iterator(hinIn file included from ts2/s2builderutil_get_snapped_winding_delta.cc): 50A:
BIn file included from S../src/s2/s2builderutil_get_snapped_winding_delta.hL:_24I:
NIn file included from T../src/s2/s2builder.hE:R35N:
AIn file included from L../src/s2/id_set_lexicon.h_:C28O:
MIn file included from M../src/s2/base/logging.hA:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/container/internal/btree_container.h21::
509:/usr/local/clang/include/absl/log/internal/check_op.h47::517 :13note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  509 |    517  |  c o n s t   c hAaBrS*L _aIbNsTlE_RnNuAlLl_aAbTlTeR ICBhUeTcEk_sCtArPcTaUsReEcDm_pBtYr(utehIimsp)l)(,
        |              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i\n
e       | a                                              ^~~~b
sl_null/usr/local/clang/include/absl/container/internal/btree_container.ha:b574l:e3 :_ Nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l/usr/local/clang/include/absl/container/internal/btree_container.ha:b511l:e52
:       | note:                       ^expanded from macro 'ABSL_INTERNAL_X'

  511 | In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from A../src/s2/s2builder.hB:S35L:
_In file included from I../src/s2/id_set_lexicon.hN:T28E:
RIn file included from N../src/s2/base/logging.hA:L21_:
AIn file included from T/usr/local/clang/include/absl/log/check.hT:R37I:
BIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hT:E21_:
C/usr/local/clang/include/absl/log/internal/check_op.hA:P518T:U17R:E Dwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B
Y(t  h518i | s ) ) )  c o n s t   c h a r *   a b s l _ n u l l a b l\e
       s| 1                                                   ^,
 c/usr/local/clang/include/absl/container/internal/common.ho:n31s:t9 :c hnote: amacro 'ABSL_INTERNAL_IF_true' defined herer
* a   b31s | l#_dneuflilnaeb lAeB SsL2_,I
N      T| E                ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_257I:F23_:t rnote: uexpanded from macro 'absl_nullable'e
(i  f257_ | s#adteifsifniee da,b s.l._.n)u lilfa_bslaet i_sNfuilelda
b      l| e        ^

      |                       ^
In file included from In file included from s2/s2builderutil_get_snapped_winding_delta.ccs2/s2builderutil_find_polygon_degeneracies.cc::5018:
:
In file included from In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h../src/s2/s2builderutil_find_polygon_degeneracies.h::2424:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2builder.h::3536:
:
In file included from In file included from ../src/s2/id_set_lexicon.h../src/s2/mutable_s2shape_index.h::2830:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/btree_map.h::2167:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/check.h::57437::
3In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/log/internal/check_op.h
:518:47:   warning: 574type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
    A518B | S L _ I NcToEnRsNtA Lc_hXa(ri*n saebrstl__onru_lalsasbilgen ,s 1i,n sceornts_to rc_haasrs*i ganb_shli_nntu_lilmapbll,e  cso2n,s
t       | &                                              ^,
 &/usr/local/clang/include/absl/base/nullability.h&:,257
:      23| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
note: expanded from macro 'absl_nullable'
  575 |    257  |  # d e f i n e   a b s l _ n u ltlraubel,e  t_rNuuel,l acbolnes
t      _| i                      ^t
eratorIn file included from (s2/s2builderutil_get_snapped_winding_delta.cch:i50n:
tIn file included from )../src/s2/s2builderutil_get_snapped_winding_delta.h :A24B:
SIn file included from L../src/s2/s2builder.h_:I35N:
TIn file included from ../src/s2/id_set_lexicon.hE:R28N:
AIn file included from L../src/s2/base/logging.h_:C21O:
MIn file included from M/usr/local/clang/include/absl/log/check.hA:)37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~21
:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/container/internal/btree_container.h519::51117::47 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

  519   | 511  |       c o n s t   c hAaBrS*L _aIbNsTlE_RnNoAnLn_uAlTlT ReIxBpUrTtEe_xCtA)P;T
U      R| E                ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull')
     241  |  # d e f i n e   a b s l _ n o n n u l l\ 
_      N| o                                              ^~~~n
null
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullabl/usr/local/clang/include/absl/container/internal/btree_container.he: 577s:23,:
       | warning:                 ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/base/nullability.h:257:  23577: |   note:  expanded from macro 'absl_nullable'A
BS  L257_ | I#NdTeEfRiNnAeL _aXb(siln_sneurltl_aobrl_ea s_sNiuglnl,a bilnes
e      r| t                      ^_
or_assiIn file included from gs2/s2builderutil_get_snapped_winding_delta.ccn:_50h:
iIn file included from n../src/s2/s2builderutil_get_snapped_winding_delta.ht:_24i:
mIn file included from p../src/s2/s2builder.hl:,35 :
&In file included from &../src/s2/id_set_lexicon.h,: 28c:
oIn file included from n../src/s2/base/logging.hs:t21 :
&In file included from ,/usr/local/clang/include/absl/log/check.h
:      37| :
  ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/container/internal/btree_container.h:
:/usr/local/clang/include/absl/log/internal/check_op.h509::52152::47 : note: warning: expanded from macro 'ABSL_INTERNAL_X'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

    509521 |  |          c o n s t  AcBhSaLr_*I NaTbEsRlN_AnLu_lAlTaTbRlIeB UsT1E,_ CcAoPnTsUtR EcDh_aBrY*( tahbissl)_)n,u l l a b l e   s 2 , 
        |                                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note: \expanded from macro 'absl_nullable'

      |                                                      ^257
 | #d/usr/local/clang/include/absl/container/internal/common.he:f32i:n9e:  anote: bmacro 'ABSL_INTERNAL_IF_false' defined heres
l_n   u32l | l#adbelfei n_eN uAlBlSaLb_lIeN
T      E| R                      ^N
AL_IF_fIn file included from as2/s2builderutil_get_snapped_winding_delta.ccl:s50e:
(In file included from i../src/s2/s2builderutil_get_snapped_winding_delta.hf:_24s:
aIn file included from t../src/s2/s2builder.hi:s35f:
iIn file included from e../src/s2/id_set_lexicon.hd:,28 :
.In file included from .../src/s2/base/logging.h.:)21 :
_In file included from _/usr/local/clang/include/absl/log/check.hV:A37_:
AIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hG:S21_:
_/usr/local/clang/include/absl/log/internal/check_op.h
:      522| :        ^17
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |  In file included from  s2/s2builderutil_find_polygon_degeneracies.cc : 18c:
oIn file included from n../src/s2/s2builderutil_find_polygon_degeneracies.hs:t24 :
cIn file included from h../src/s2/s2builder.ha:r36*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l577 :e3x:p rwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
xt);  
577       | |                  ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241X | (#idnesfeirnte_ oarb_sals_sniognnn,u liln s_eNrotn_nourl_la
s      s| i                     ^g
n_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBIn file included from Us2/s2builderutil_get_snapped_winding_delta.ccT:E50_:
CIn file included from A../src/s2/s2builderutil_get_snapped_winding_delta.hP:T24U:
RIn file included from E../src/s2/s2builder.hD:_35B:
YIn file included from (../src/s2/id_set_lexicon.ht:h28i:
sIn file included from )../src/s2/base/logging.h):)22 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 49 : 37 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31   :499 | :i nnote: tmacro 'ABSL_INTERNAL_IF_true' defined here 
Reg   i31s | t#edreAfnidnIen iAtBiSaLl_iIzNeT(EVRLNoAgLS_iItFe_*t raubes(li_fn_osnantuilslf ive)d;,
       .| .                                    ^.
) i/usr/local/clang/include/absl/base/nullability.hf:_241s:a22t:i snote: fexpanded from macro 'absl_nonnull'i
ed  
241       | | #        ^d
efine absl_In file included from ns2/s2builderutil_find_polygon_degeneracies.cco:n18n:
uIn file included from l../src/s2/s2builderutil_find_polygon_degeneracies.hl: 24_:
NIn file included from o../src/s2/s2builder.hn:n36u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      30| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(inserIn file included from ts2/s2builderutil_get_snapped_winding_delta.cc_:o50r:
_In file included from a../src/s2/s2builderutil_get_snapped_winding_delta.hs:s24i:
gIn file included from n../src/s2/s2builder.h,: 35i:
nIn file included from s../src/s2/id_set_lexicon.he:r28t:
_In file included from o../src/s2/base/logging.hr:_22a:
sIn file included from s/usr/local/clang/include/absl/log/log.hi:g209n:
_In file included from h/usr/local/clang/include/absl/log/internal/log_impl.hi:n20t:
_In file included from i/usr/local/clang/include/absl/log/absl_vlog_is_on.hm:p63l:
,/usr/local/clang/include/absl/log/internal/vlog_config.h :&63&:,43 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t &   ,63
 |        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
xpl  i584c | i t   con s t e x p r   V L o g S i t et(rcuoen,s tt rcuhea,r *c oanbsstl__intoenrnautlolr (fh)i
n      t| )                                          ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241C | O#MdMeAf)i;n
e       | a                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o511n:n47u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'_
Non  n511u | l l 
        |                       ^ 
    ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_asIn file included from ss2/s2builderutil_get_snapped_winding_delta.cci:g50n:
_In file included from h../src/s2/s2builderutil_get_snapped_winding_delta.hi:n24t:
_In file included from i../src/s2/s2builder.hm:p35l:
,In file included from  ../src/s2/id_set_lexicon.h&:&28,:
 In file included from &../src/s2/base/logging.h&:,22 :
fIn file included from a/usr/local/clang/include/absl/log/log.hl:s209e:
,In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h      :| 20  ^:

In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:/usr/local/clang/include/absl/container/internal/btree_container.h63::
509:/usr/local/clang/include/absl/log/internal/vlog_config.h52::119 :15note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  509 |    119  |      c o n s t  AcBhSaLr_*I NaTbEsRlN_AnLo_nAnTuTlRlI BcUoTnEs_tC AfPiTlUeR_E;D
_      B| Y              ^(
th/usr/local/clang/include/absl/base/nullability.hi:s241):)22,:   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n\n
u      l| l                                                   ^ 
_N/usr/local/clang/include/absl/container/internal/common.ho:n32n:u9l:l 
      note: | macro 'ABSL_INTERNAL_IF_false' defined here                     ^

   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERIn file included from Ns2/s2builderutil_get_snapped_winding_delta.ccA:L50_:
CIn file included from O../src/s2/s2builderutil_get_snapped_winding_delta.hM:M24A:
)In file included from ;../src/s2/s2builder.h
:      35| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/id_set_lexicon.h:28:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/logging.h::51122::
47In file included from :/usr/local/clang/include/absl/log/log.h :209note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h  :51120 | :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 133 : 37A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INTE  R133N | AiLn_tA TRTeRgIiBsUtTeEr_ACnAdPITnUiRtEiDa_lBiYz(et(hViLso)g)S)i t e *   a b s l _ n o n n u l l   v ) ; 
        |                                      ^\

      |                                               ^~~~/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_590n:u3l:l awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
e _N  u590l | l a bAlBeS
L      _| I                      ^N
TERNAL_X(In file included from is2/s2builderutil_get_snapped_winding_delta.ccn:s50e:
rIn file included from t../src/s2/s2builderutil_get_snapped_winding_delta.h_:o24r:
_In file included from a../src/s2/s2builder.hs:s35i:
gIn file included from n../src/s2/id_set_lexicon.h,: 28i:
nIn file included from s../src/s2/base/logging.he:r22t:
_In file included from o/usr/local/clang/include/absl/log/log.hr:_209a:
sIn file included from s/usr/local/clang/include/absl/log/internal/log_impl.hi:20g:
nIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hh:i63n:
t/usr/local/clang/include/absl/log/internal/vlog_config.h_:i158m:p15l:,  warning: &type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]&
,   &158& | ,   t r uVeL,o
g      S| i  ^t
e*/usr/local/clang/include/absl/container/internal/btree_container.h :a509b:s52l:_ nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
lab  l509e |   v ) ; 
        |                ^ 
  /usr/local/clang/include/absl/base/nullability.hA:B257S:L23_:I Nnote: Texpanded from macro 'absl_nullable'E
RN  A257L | _#AdTeTfRiInBeU TaEb_sClA_PnTuUlRlEaDb_lBeY (_tNhuilsl)a)b,l e 
        |                        ^ 
                  \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_In file included from ss2/s2builderutil_find_polygon_degeneracies.cct:r18t:
oIn file included from u../src/s2/s2builderutil_find_polygon_degeneracies.h6:424_:
bIn file included from a../src/s2/s2builder.hs:e36(:
aIn file included from b../src/s2/mutable_s2shape_index.hs:l33::
:In file included from s../src/s2/base/commandlineflags.ht:r21i:
nIn file included from g/usr/local/clang/include/absl/flags/flag.h_:v40i:
ew/usr/local/clang/include/absl/flags/commandlineflag.h :t163e:x56t:,  warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nt64_t  *163  | a b sblo_onlo nPnaurlsle Fvraolmu(ea,b
s      l| :                                                          ^:
st/usr/local/clang/include/absl/base/nullability.hr:i241n:g22_:v inote: eexpanded from macro 'absl_nonnull'w
 v  a241l | u#ed,e fsitnde: :asbtsrli_nngo*n naublsll __nNoonnnnuullll 
e      r| r                     ^o
r);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2builderutil_lax_polygon_layer.cce:f18i:
nIn file included from e../src/s2/s2builderutil_lax_polygon_layer.h :a42b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:
 In file included from _/usr/local/clang/include/absl/container/internal/btree.hN:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h                     ^:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^In file included from 
s2/s2builderutil_find_polygon_degeneracies.cc:/usr/local/clang/include/absl/base/nullability.h18::
241In file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h22::24 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2builder.h
:36  :
241In file included from  | ../src/s2/mutable_s2shape_index.h#:d33e:
fIn file included from i../src/s2/base/commandlineflags.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/flags/flag.hs:l40_:
n/usr/local/clang/include/absl/flags/commandlineflag.ho:n193n:u27l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onnu  l193l | 
        | v                     ^i
rtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2builderutil_lax_polygon_layer.cc::24118::
22In file included from :../src/s2/s2builderutil_lax_polygon_layer.h :note: 42expanded from macro 'absl_nonnull':

In file included from ../src/s2/mutable_s2shape_index.h  :24130 | :
#In file included from d/usr/local/clang/include/absl/container/btree_map.he:f66i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :a70b:
sIn file included from l/usr/local/clang/include/absl/container/internal/layout.h_:n198o:
nIn file included from n/usr/local/clang/include/absl/strings/str_cat.hu:l116l:
 In file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:o23n:
n/usr/local/clang/include/absl/strings/numbers.hu:l182l:
7      :|                       ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
In file included from /usr/local/clang/include/absl/base/call_once.hs2/s2builderutil_lax_polygon_layer.cc::5218::
24In file included from :../src/s2/s2builderutil_lax_polygon_layer.h :warning: 42type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from    /usr/local/clang/include/absl/container/btree_map.h52: | 66s:
tIn file included from d/usr/local/clang/include/absl/container/internal/btree.h:::70a:
tIn file included from o/usr/local/clang/include/absl/container/internal/layout.hm:i198c:
<In file included from u/usr/local/clang/include/absl/strings/str_cat.hi:n116t:
3In file included from 2/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:t23>:
*/usr/local/clang/include/absl/strings/numbers.h :a201b:s5l:_ nwarning: o'diagnose_if' is a clang extension [-Wgcc-compat]n
nul  l201  | C o n t rAoBlSWLo_rIdN(T
E      R| N                       ^A
L_NE/usr/local/clang/include/absl/base/nullability.hE:D241_:M22I:N _note: Sexpanded from macro 'absl_nonnull'I
ZE  (241o | u#td_esftirn,e  kaFbasslt_TnooBnunfuflelr S_iNzoen)n;u
l      l| 
    ^      
|                      ^/usr/local/clang/include/absl/base/macros.h
:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251In file included from  | s2/s2builderutil_find_polygon_degeneracies.cc : 18_:
_In file included from a../src/s2/s2builderutil_find_polygon_degeneracies.ht:t24r:
iIn file included from b../src/s2/s2builder.hu:t36e:
_In file included from _../src/s2/mutable_s2shape_index.h(:(33d:
iIn file included from a../src/s2/base/commandlineflags.hg:n21o:
sIn file included from e/usr/local/clang/include/absl/flags/flag.h_:i42f:
(In file included from _/usr/local/clang/include/absl/flags/internal/flag.h_:b30u:
i/usr/local/clang/include/absl/base/call_once.hl:t53i:n22_:o bwarning: jtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ct_   s53i | z e ( O bajb,s l0:): o<n cNe,_ f\l
a      g| *                 ^ 
absl_nonnull In file included from fs2/s2builderutil_lax_polygon_layer.ccl:a18g:
)In file included from ;../src/s2/s2builderutil_lax_polygon_layer.h
:      42| :
                     ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2266::
 In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'absl_nonnull':
70:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h241: | 198#:
dIn file included from e/usr/local/clang/include/absl/strings/str_cat.hf:i116n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n202o:n7n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_No  n202n | uclhla
r      *|                       ^a
bsl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2builderutil_find_polygon_degeneracies.ccl:
18      :
| In file included from                      ^../src/s2/s2builderutil_find_polygon_degeneracies.h
:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.hIn file included from :s2/s2builderutil_lax_polygon_layer.cc21::
18In file included from :
/usr/local/clang/include/absl/flags/flag.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h42::
42In file included from :
/usr/local/clang/include/absl/flags/internal/flag.hIn file included from :../src/s2/mutable_s2shape_index.h30::
30/usr/local/clang/include/absl/base/call_once.h:
:In file included from 96/usr/local/clang/include/absl/container/btree_map.h::3366::
 In file included from warning: /usr/local/clang/include/absl/container/internal/btree.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:   19896:
 | In file included from  /usr/local/clang/include/absl/strings/str_cat.h :f116r:
iIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:d23 :
s/usr/local/clang/include/absl/strings/numbers.ht:d202:::53a:t owarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
c<u  i202n | tc3h2a_rt*> *a basbls_ln_onnonnunlull lF absatsIen_tiTnotBeurfnfaelr:(:iCnotn6t4r_otl Wio,r dc(h
a      r| *                                ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   b241u | f#fdeerf)i
n      e|                                                      ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnIn file included from us2/s2builderutil_find_polygon_degeneracies.ccl:l18 :
_In file included from N../src/s2/s2builderutil_find_polygon_degeneracies.ho:n24n:
uIn file included from l../src/s2/s2builder.hl:
36      :
| In file included from                      ^../src/s2/mutable_s2shape_index.h
:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absIn file included from ls2/s2builderutil_lax_polygon_layer.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_lax_polygon_layer.hu:l42l:
 In file included from f../src/s2/mutable_s2shape_index.hl:a30g:
)In file included from ;/usr/local/clang/include/absl/container/btree_map.h
:      66| :
                 ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/base/nullability.h::70241:
:In file included from 22/usr/local/clang/include/absl/container/internal/layout.h:: 198note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:  116241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e203 :a5b:s lwarning: _'diagnose_if' is a clang extension [-Wgcc-compat]n
onn  u203l | l   _ N oAnBnSuLl_lI
N      T| E                     ^R
NAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) In file included from <s2/s2builderutil_find_polygon_degeneracies.cc :N18,:
 In file included from \../src/s2/s2builderutil_find_polygon_degeneracies.h
:      24| :
                 ^In file included from 
../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42In file included from :
s2/s2builderutil_lax_polygon_layer.ccIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h18::
30In file included from :
../src/s2/s2builderutil_lax_polygon_layer.h:/usr/local/clang/include/absl/base/call_once.h42::
111In file included from :../src/s2/mutable_s2shape_index.h40::30 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h  :11170 | :
vIn file included from o/usr/local/clang/include/absl/container/internal/layout.hi:d198 :
LIn file included from o/usr/local/clang/include/absl/strings/str_cat.hw:L116e:
vIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:C23a:
l/usr/local/clang/include/absl/strings/numbers.hl:O204n:c7e:( awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l::  o204n | cceh_afrl*a ga*b salb_snlo_nnnounlnlu lFla sftlIangt,T oCBaulflfaebrl(eu&i&n tf6n4,_
t       | i                                       ^,
 c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ibnuef faebrs)l
_      n| o      ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
In file included from /usr/local/clang/include/absl/base/macros.hs2/s2builderutil_find_polygon_degeneracies.cc::25118::
18In file included from :../src/s2/s2builderutil_find_polygon_degeneracies.h :note: 24expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':

In file included from ../src/s2/s2builder.h:36  :
251In file included from  | ../src/s2/mutable_s2shape_index.h : 33_:
_In file included from a../src/s2/base/commandlineflags.ht:t21r:
iIn file included from b/usr/local/clang/include/absl/flags/flag.hu:t42e:
_In file included from _/usr/local/clang/include/absl/flags/internal/flag.h(:(30d:
i/usr/local/clang/include/absl/base/call_once.ha:g153n:o41s:e _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
(__b  u153i | l t i n _CoabljleOcntc_esIimzpel((Osbtjd,: :0a)t o<m iNc,< u\i
n      t| 3                 ^2
_t>* absl_noIn file included from ns2/s2builderutil_lax_polygon_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_lax_polygon_layer.hc:o42n:
tIn file included from r../src/s2/mutable_s2shape_index.ho:l30,:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                                        ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/base/nullability.h::70241:
:In file included from 22/usr/local/clang/include/absl/container/internal/layout.h:: 198note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:  116241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e206 :a7b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u206l | lc h_aNro*n naublsll
_      n| o                     ^n
null FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, In file included from 0s2/s2builderutil_find_polygon_degeneracies.cc): 18<:
 In file included from N../src/s2/s2builderutil_find_polygon_degeneracies.h,: 24\:

In file included from       ../src/s2/s2builder.h| :                 ^36
:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.hs2/s2builderutil_lax_polygon_layer.cc::3018:
:
In file included from /usr/local/clang/include/absl/base/call_once.h../src/s2/s2builderutil_lax_polygon_layer.h::19442::
31In file included from :../src/s2/mutable_s2shape_index.h :30warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h194: | 70i:
nIn file included from l/usr/local/clang/include/absl/container/internal/layout.hi:n198e:
 In file included from s/usr/local/clang/include/absl/strings/str_cat.ht:d116::
:In file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:o23m:
i/usr/local/clang/include/absl/strings/numbers.hc:<208u:i7n:t 3warning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
t>*   208a | bcshla_rn*o nanbuslll_ nCoonnnturloll WFoarsdt(I
n      t| T                              ^o
Bu/usr/local/clang/include/absl/base/nullability.hf:f241e:r22(:u inote: nexpanded from macro 'absl_nonnull't
12  8241  | i#,d ecfhianre*  aabbssll__nnoonnnnuullll  In file included from _bs2/s2builderutil_get_snapped_winding_delta.ccNu:of50nf:
neIn file included from ur../src/s2/s2builderutil_get_snapped_winding_delta.h)l:
l24
      :
      | In file included from       ^| ../src/s2/s2builder.h
                     ^:
36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/mutable_s2shape_index.h::2230In file included from ::
s2/s2builderutil_find_polygon_degeneracies.cc In file included from :note: /usr/local/clang/include/absl/container/btree_map.h18expanded from macro 'absl_nonnull'::

66In file included from :
  ../src/s2/s2builderutil_find_polygon_degeneracies.hIn file included from 241:/usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h: | 24198#:
:
dIn file included from In file included from e../src/s2/s2builder.h/usr/local/clang/include/absl/strings/str_cat.hf::i36116n:
:
eIn file included from In file included from  ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/internal/stringify_sink.ha::b3323s:
:
lIn file included from /usr/local/clang/include/absl/strings/numbers.h_../src/s2/base/commandlineflags.h:n:66o21:n:
41nIn file included from :u/usr/local/clang/include/absl/flags/flag.h l:warning: l42type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :

_In file included from N/usr/local/clang/include/absl/flags/internal/flag.ho:   n3066n:
 | /usr/local/clang/include/absl/base/call_once.h u: l195 l: 
16       : |                       ^warning:  
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     195  |       In file included from    os2/s2builderutil_lax_polygon_layer.cc n: c18 e:
 _ In file included from f ../src/s2/s2builderutil_lax_polygon_layer.hl a: g42 * :
  aIn file included from  b../src/s2/mutable_s2shape_index.h s:il30n_t:
n_In file included from otn/usr/local/clang/include/absl/container/btree_map.h:66ynp:
ueIn file included from l*l/usr/local/clang/include/absl/container/internal/btree.h  a:fb70lsa:
lg_In file included from )n /usr/local/clang/include/absl/container/internal/layout.ho{:n
n198u      :
l| In file included from l               ^ /usr/local/clang/include/absl/strings/str_cat.h
o:u/usr/local/clang/include/absl/base/nullability.ht116:):
241;In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.h22      ::| 23                                         ^:
note: 
/usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull':
208/usr/local/clang/include/absl/base/nullability.h:  :53241241: | :# 22d:ewarning:  ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: iexpanded from macro 'absl_nonnull'
n
e     a208241b |  | s#cldh_eanfroi*nnn ea uablblssl l___Nnonononnnnnuuulllll
 l      _ | N                     ^Fo
ansntuIlnlt
T      o| B                     ^u
ffer(uint128 i, char* absl_nonnull bIn file included from us2/s2builderutil_get_snapped_winding_delta.ccf:f50e:
rIn file included from )../src/s2/s2builderutil_get_snapped_winding_delta.h
:      24| :
                                                    ^In file included from 
In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/base/nullability.hs2/s2builderutil_find_polygon_degeneracies.cc:::3624118:
::
In file included from 22In file included from ../src/s2/mutable_s2shape_index.h:../src/s2/s2builderutil_find_polygon_degeneracies.h: :3024note: :
:
expanded from macro 'absl_nonnull'In file included from In file included from 
/usr/local/clang/include/absl/container/btree_map.h../src/s2/s2builder.h:  :6624136:
 | :
#In file included from In file included from d/usr/local/clang/include/absl/container/internal/btree.h../src/s2/mutable_s2shape_index.he::f70i33:
n:
eIn file included from In file included from  /usr/local/clang/include/absl/container/internal/layout.ha../src/s2/base/commandlineflags.hb:s:198l21_:
:
nIn file included from In file included from o/usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/flags/flag.hn:n:116u42:
l:
In file included from lIn file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h /usr/local/clang/include/absl/flags/internal/flag.h_:N:23o30:
n/usr/local/clang/include/absl/strings/numbers.hn:
u:/usr/local/clang/include/absl/base/call_once.hl77l:
:200      61:| :40                     ^ :
warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77   | 200[ | [vnooiddi sLcoawrLde]v]e lbCoaolll OSnicmep(laebAstlo:fIn file included from :(oas2/s2builderutil_lax_polygon_layer.ccnb:cse18l_:
:fIn file included from :l../src/s2/s2builderutil_lax_polygon_layer.hsa:tgr*42i n:
agIn file included from b_../src/s2/mutable_s2shape_index.hsvl:i_30en:
wo In file included from nsnt/usr/local/clang/include/absl/container/btree_map.hurl:,l 66 f:
flIn file included from lo/usr/local/clang/include/absl/container/internal/btree.haag:t,70*  :
CaIn file included from ab/usr/local/clang/include/absl/container/internal/layout.hls:ll_198an:
boIn file included from lne/usr/local/clang/include/absl/strings/str_cat.hn&u:&l116 l:
f nIn file included from o,u/usr/local/clang/include/absl/strings/internal/stringify_sink.h
t:      )23| ;:
                                       ^
/usr/local/clang/include/absl/strings/numbers.h
      :| /usr/local/clang/include/absl/base/nullability.h                                                            ^209:
:2415/usr/local/clang/include/absl/base/nullability.h:::22 241::warning:  'diagnose_if' is a clang extension [-Wgcc-compat]note: 22expanded from macro 'absl_nonnull'
:
     note: 209241expanded from macro 'absl_nonnull' |  | 
# d   e 241 f | i#nAdeeB fSaibnLsel_ _aInbNoTsnElRn_uNnll _ANooLnn_nnuNulllEl E
_D      N_| o                     ^MnI
Nn_uSlIlZ
E      (| b                     ^u
ffer, kFastToBuffer128Size);In file included from 
s2/s2builderutil_get_snapped_winding_delta.cc      :| 50    ^:

In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:/usr/local/clang/include/absl/base/macros.h24::
251In file included from :../src/s2/s2builder.h18::36 :
note: In file included from ../src/s2/mutable_s2shape_index.hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :25166 | :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h_:_70a:
tIn file included from t/usr/local/clang/include/absl/container/internal/layout.hr:i198b:
uIn file included from t/usr/local/clang/include/absl/strings/str_cat.he:_116_:
(In file included from (/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:i23a:
g/usr/local/clang/include/absl/strings/numbers.hn:o88s:e62_:i fwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
_bui   l88t | i[n[_noobdjiesccta_rsdi]z]e (bOobojl,  S0i)m p<l eNA,t o\d
(      a| b                 ^s
l::string_view str,In file included from  s2/s2builderutil_lax_polygon_layer.ccd:o18u:
bIn file included from l../src/s2/s2builderutil_lax_polygon_layer.he:*42 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l30_:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :o70u:
tIn file included from );
      |                                                              ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h241::11622:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :expanded from macro 'absl_nonnull'23
:
/usr/local/clang/include/absl/strings/numbers.h  :241215 | :#7d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b215s | lc_hnaorn*n ualbls l__Nnoonnnnuullll
       F| a                     ^s
tIntToBuffer(int_type i,
      |       ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2builderutil_get_snapped_winding_delta.cc::24150::
22In file included from :../src/s2/s2builderutil_get_snapped_winding_delta.h :note: 24expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2builder.h  :24136 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f30i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n70o:
nIn file included from n/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
 In file included from _/usr/local/clang/include/absl/strings/str_cat.hN:o116n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23
:
      /usr/local/clang/include/absl/strings/numbers.h| :                     ^98
:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [In file included from [s2/s2builderutil_lax_polygon_layer.ccn:o18d:
iIn file included from s../src/s2/s2builderutil_lax_polygon_layer.hc:a42r:
dIn file included from ]../src/s2/mutable_s2shape_index.h]: 30b:
oIn file included from o/usr/local/clang/include/absl/container/btree_map.hl: 66S:
iIn file included from m/usr/local/clang/include/absl/container/internal/btree.hp:l70e:
AIn file included from t/usr/local/clang/include/absl/container/internal/layout.ho:b198(:
aIn file included from b/usr/local/clang/include/absl/strings/str_cat.hs:l116::
:In file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:r23i:
n/usr/local/clang/include/absl/strings/numbers.hg:_216v:i49e:w  warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
r,   b216o | o l *   a b s l _ n o n n u l l   o u t ) ; 
        |                                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #cdheafri*n ea basbls_ln_onnonnunlull lb u_fNfoenrn)u
l      l| 
                                                ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2builderutil_get_snapped_winding_delta.ccu:l50l:
 In file included from _../src/s2/s2builderutil_get_snapped_winding_delta.hN:o24n:
nIn file included from u../src/s2/s2builder.hl:l36
:
      In file included from | ../src/s2/mutable_s2shape_index.h                     ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_tIn file included from ys2/s2builderutil_lax_polygon_layer.ccp:e18*:
 In file included from a../src/s2/s2builderutil_lax_polygon_layer.hb:s42l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 66o:
uIn file included from t/usr/local/clang/include/absl/container/internal/btree.h):;70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                                           ^:
198:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/str_cat.h::241116::
22In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :note: 23expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/strings/numbers.h:  217241: | 5#:d ewarning: f'diagnose_if' is a clang extension [-Wgcc-compat]i
ne   a217b | s l _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lN
E      E| D                     ^_
MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   In file included from _s2/s2builderutil_get_snapped_winding_delta.cc_:a50t:
tIn file included from r../src/s2/s2builderutil_get_snapped_winding_delta.hi:b24u:
tIn file included from e../src/s2/s2builder.h_:_36(:
(In file included from d../src/s2/mutable_s2shape_index.hi:a30g:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hs:e66_:
iIn file included from f/usr/local/clang/include/absl/container/internal/btree.h(:_70_:
bIn file included from u/usr/local/clang/include/absl/container/internal/layout.hi:l198t:
iIn file included from n/usr/local/clang/include/absl/strings/str_cat.h_:o116b:
jIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hc:t23_:
s/usr/local/clang/include/absl/strings/numbers.hi:z116e:(55O:b jwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
0) <   116N | ,   \ 
        |                   ^ 
                                 absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2builderutil_lax_polygon_layer.ccf:i18n:
eIn file included from  ../src/s2/s2builderutil_lax_polygon_layer.ha:b42s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:o30n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66 :
_In file included from N/usr/local/clang/include/absl/container/internal/btree.ho:n70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl:
198      :
| In file included from                      ^/usr/local/clang/include/absl/strings/str_cat.h
:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_get_snapped_winding_delta.ccN:o50n:
nIn file included from u../src/s2/s2builderutil_get_snapped_winding_delta.hl:l24
:
      In file included from | ../src/s2/s2builder.h                     ^:
36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from In file included from s2/s2builderutil_get_snapped_winding_delta.cc/usr/local/clang/include/absl/container/internal/layout.h::50198:
:
In file included from In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h/usr/local/clang/include/absl/strings/str_cat.h::24116:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::3623:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/numbers.h::30303:
:In file included from 60/usr/local/clang/include/absl/container/btree_map.h:: 66warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :303198 | :
iIn file included from n/usr/local/clang/include/absl/strings/str_cat.hl:i116n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hs:i23z:
e/usr/local/clang/include/absl/strings/numbers.h_:t160 :F57a:s twarning: Htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
xToB  u160f | fbeoroZle rsoaPfaed_1s6t(rution3t26_4b_ats ev(aalb,s lc:h:asrt*r ianbgs_lv_ineown ntuelxlt ,o uitn)t 3{2
_      t| *                                                           ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 v  a241l | u#ed,e
f      i| n                                                        ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:In file included from 23s2/s2builderutil_lax_polygon_layer.cc:
:/usr/local/clang/include/absl/strings/numbers.h18::
166In file included from :../src/s2/s2builderutil_lax_polygon_layer.h57::42 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :16666 | :
bIn file included from o/usr/local/clang/include/absl/container/internal/btree.ho:l70 :
sIn file included from a/usr/local/clang/include/absl/container/internal/layout.hf:e198_:
sIn file included from t/usr/local/clang/include/absl/strings/str_cat.hr:t116o:
uIn file included from 8/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:b23a:
se/usr/local/clang/include/absl/strings/numbers.h(:a330b:s41l:: :warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ring  _330v | i e w   t e x t ,   u i n t 8 _ t *   a b s l _ n o n n u l li nvta_ltuyep,e
*       | a                                                        ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
ou  t241) |  #{d
e      f| i                                        ^n
e a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | boolIn file included from  s2/s2builderutil_lax_polygon_layer.ccs:a18f:
eIn file included from _../src/s2/s2builderutil_lax_polygon_layer.hs:t42r:
tIn file included from o../src/s2/mutable_s2shape_index.hu:1306:
_In file included from b/usr/local/clang/include/absl/container/btree_map.ha:s66e:
(In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.ha:b198s:
lIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::s116t:
rIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:g23_:
v/usr/local/clang/include/absl/strings/numbers.hi:e335w: 52t:e xwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 uin  t3351 | 6 _ t *   a b s l _ n o n n u l l   v a l u e , 
        |                                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: aexpanded from macro 'absl_nonnull'b
sl  :241: | i#ndte1f2i8n*e  aabbssll__nnoonnnnuullll  o_uNto)n n{u
l      l| 
                                                   ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2builderutil_get_snapped_winding_delta.ccn:o50n:
nIn file included from u../src/s2/s2builderutil_get_snapped_winding_delta.hl:l24 :
_In file included from N../src/s2/s2builder.ho:n36n:
uIn file included from l../src/s2/mutable_s2shape_index.hl:
30      :
| In file included from                      ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view tIn file included from es2/s2builderutil_lax_polygon_layer.ccx:t18,:
 In file included from u../src/s2/s2builderutil_lax_polygon_layer.hi:n42t:
3In file included from 2../src/s2/mutable_s2shape_index.h_:t30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.ho:n70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl: 198v:
aIn file included from l/usr/local/clang/include/absl/strings/str_cat.hu:e116,:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                                                          ^23
:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/numbers.h::241340::2253::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | #  d340e | f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
       absl::uint128* In file included from as2/s2builderutil_get_snapped_winding_delta.ccb:s50l:
_In file included from n../src/s2/s2builderutil_get_snapped_winding_delta.ho:n24n:
uIn file included from l../src/s2/s2builder.hl: 36o:
uIn file included from t../src/s2/mutable_s2shape_index.h): 30{:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                                                    ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/base/nullability.h::70241:
:In file included from 22/usr/local/clang/include/absl/container/internal/layout.h:: 198:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/str_cat.h
:116  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n172e: 59a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u172l | lb o_oNlo nsnauflel_
s      t| r                     ^t
ou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2builderutil_lax_polygon_layer.cc
:18  :
241In file included from  | ../src/s2/s2builderutil_lax_polygon_layer.h#:d42e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl: 198_:
NIn file included from o/usr/local/clang/include/absl/strings/str_cat.hn:n116u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:      23| :
                     ^
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |            In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h :i66n:
tIn file included from _/usr/local/clang/include/absl/container/internal/btree.ht:y70p:
eIn file included from */usr/local/clang/include/absl/container/internal/layout.h :a198b:
sIn file included from l/usr/local/clang/include/absl/strings/str_cat.h_:n116o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:l23l:
 /usr/local/clang/include/absl/strings/numbers.ho:u175t:)41 :{ 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                           ^
/usr/local/clang/include/absl/base/nullability.h  :175241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n oanbnsull:l: u_iNnotn1n2u8l*l 
a      b| s                     ^l
_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2builderutil_lax_polygon_layer.ccn:e18 :
aIn file included from b../src/s2/s2builderutil_lax_polygon_layer.hs:l42_:
nIn file included from o../src/s2/mutable_s2shape_index.hn:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h :_66N:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hn:u70l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                     ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                        In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h:::66i:
nIn file included from t/usr/local/clang/include/absl/container/internal/btree.h1:2708:
*In file included from  /usr/local/clang/include/absl/container/internal/layout.ha:b198s:
lIn file included from _/usr/local/clang/include/absl/strings/str_cat.hn:o116n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23 :
o/usr/local/clang/include/absl/strings/numbers.hu:t182): 7{:
       |                                                       ^
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   note: 182expanded from macro 'absl_nonnull' | 
ch  a241r | *# daebfsiln_en oanbnsull_ln oRnonuunldlT r_iNpoDnonuubllle
T      o| B                     ^u
ffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2builderutil_lax_polygon_layer.ccu:l18l:
 In file included from _../src/s2/s2builderutil_lax_polygon_layer.hN:o42n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                     ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.hs2/s2builderutil_get_snapped_winding_delta.cc::11650:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2builderutil_get_snapped_winding_delta.h::2324:
:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s2builder.h356::3656:
:In file included from  ../src/s2/mutable_s2shape_index.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66  :
356In file included from  | /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 182 : 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      182  |  c h a r *   aabbssll_:n:ouninnutl1l2 8R*o uanbdsTlr_inpoDnonuubllle ToouBtu)f f{e
r      (| d                                                       ^o
ub/usr/local/clang/include/absl/base/nullability.hl:e241 :d22,:  cnote: hexpanded from macro 'absl_nonnull'a
r*   241a | b#sdle_fnionnen ualbls lb_unfofnenru)l;l
       _| N                                                           ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_lax_polygon_layer.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_lax_polygon_layer.hl:l42
:
      In file included from | ../src/s2/mutable_s2shape_index.h                     ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.hIn file included from :s2/s2builderutil_get_snapped_winding_delta.cc198::
50:
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :../src/s2/s2builderutil_get_snapped_winding_delta.h223::2425:
:In file included from  ../src/s2/s2builder.h:warning: 36type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h223: | 66 :
 In file included from e/usr/local/clang/include/absl/container/internal/btree.hx:p70l:
iIn file included from c/usr/local/clang/include/absl/container/internal/layout.hi:t198 :
HIn file included from e/usr/local/clang/include/absl/strings/str_cat.hx:(116P:
oIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:t23e:
e/usr/local/clang/include/absl/strings/numbers.h*: 202a:b53s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b202l | ec hva,r *P aadbSsple_cn osnpneucl l=  FaabsstlI:n:tkTNooBPuafdf)e
r      (| i                        ^n
t64/usr/local/clang/include/absl/base/nullability.h_:t257 :i23,:  cnote: hexpanded from macro 'absl_nullable'a
r*   257a | b#sdle_fnionnen ualbls lb_unfuflelra)b
l      e|                                                      ^_
Nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e 
      note: | expanded from macro 'absl_nonnull'                      ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      | In file included from       ^s2/s2builderutil_lax_polygon_layer.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2builderutil_lax_polygon_layer.h::2242::
 In file included from note: ../src/s2/mutable_s2shape_index.hexpanded from macro 'absl_nonnull':
30:
  In file included from 241/usr/local/clang/include/absl/container/btree_map.h | :#66d:
eIn file included from f/usr/local/clang/include/absl/container/internal/btree.hi:n70e:
 In file included from a/usr/local/clang/include/absl/container/internal/layout.hb:s198l:
_n/usr/local/clang/include/absl/strings/str_cat.ho:n398n:u24l:l  _warning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnull  
398       | |                       ^ 
AlphaNum(cIn file included from os2/s2builderutil_get_snapped_winding_delta.ccn:s50t:
 In file included from c../src/s2/s2builderutil_get_snapped_winding_delta.hh:a24r:
*In file included from  ../src/s2/s2builder.ha:b36s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.hb:l66e:
 In file included from c/usr/local/clang/include/absl/container/internal/btree.h_:s70t:
rIn file included from  /usr/local/clang/include/absl/container/internal/layout.h :/198/:
 In file included from N/usr/local/clang/include/absl/strings/str_cat.hO:L116I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.h(:r23u:
n/usr/local/clang/include/absl/strings/numbers.ht:i216m:e49/:e xwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ici  t216) | 
        |                         ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b l e  c_hNaurl*l aabblsel
_      n| o                      ^n
null buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MINIn file included from _s2/s2builderutil_lax_polygon_layer.ccS:I18Z:
EIn file included from (../src/s2/s2builderutil_lax_polygon_layer.h
:      42| :
    ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/macros.h:
:In file included from 251/usr/local/clang/include/absl/container/btree_map.h::1866::
 In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :251198 | :
 /usr/local/clang/include/absl/strings/str_cat.h :_431_:a15t:t rwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
ute_  _431( | ( d icaognnsots ec_hiafr(*_ _abbusill_tniunl_loabbjleec td_astiaz(e)( Ocbojn,s t0 ){  <r eNt,u r\n
       p| i                 ^e
ce_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60:In file included from  s2/s2builderutil_find_polygon_degeneracies.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from   ../src/s2/s2builder.h303: | 36i:
nIn file included from l../src/s2/mutable_s2shape_index.hi:n33e:
 In file included from s../src/s2/base/commandlineflags.hi:z21e:
_t/usr/local/clang/include/absl/flags/flag.h :F110a:s29t:H ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
oBuffer  Z110e | rvooPiadd 1S6e(tuFilnatg6(4a_bts lv:a:lF,l acgh<aTr>**  aabbssll__nnoonnnnuullll  ofulta)g ,{ 
c      o| n                                                           ^s
t T/usr/local/clang/include/absl/base/nullability.h&: 241v:)22 :{ 
note:       expanded from macro 'absl_nonnull'| 
                            ^
  241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2builderutil_get_snapped_winding_delta.cc
:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, inserIn file included from ts2/s2builderutil_find_polygon_degeneracies.cc_:o18r:
_In file included from a../src/s2/s2builderutil_find_polygon_degeneracies.hs:s24i:
gIn file included from n../src/s2/s2builder.h_:i36m:
pIn file included from l../src/s2/mutable_s2shape_index.h,: 41c:
oIn file included from n../src/s2/s2cell_id.hs:t43 :
&In file included from ,../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27&:
,In file included from 
../src/s2/s2coder.h      :| 23  ^:

/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/btree_container.h::725511::3852::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

  511   | 725  |      s t a t i c  AsBtSaLt_uIsN_TiEnRtNeArLn_aAlT:T:RSItBaUtTuEs_RCeApP*T UaRbEsDl__BnYo(ntnhuilsl) )P)r e p a r e T o M o d i f y ( 
        |                                       ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|                                                     ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/common.h:31  :2419 | :# dnote: emacro 'ABSL_INTERNAL_IF_true' defined heref
ine    31a | b#sdle_fnionnen uAlBlS L__NIoNnTnEuRlNlA
L      _| I                     ^F
_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2builderutil_get_snapped_winding_delta.cc  :73250 | :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.hs:t24a:
tIn file included from i../src/s2/s2builder.hc: 36c:
oIn file included from n../src/s2/mutable_s2shape_index.hs:t30 :
sIn file included from t/usr/local/clang/include/absl/container/btree_map.hd::67::
s/usr/local/clang/include/absl/container/internal/btree_container.ht:r524i:n3g:*  warning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
sl_non  n524u | l l  AEBmSpLt_yISNtTrEiRnNgA(L)_;X
(      i| n                            ^s
er/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  ,241  | i#ndseefritn_eo ra_bassls_ingonn_niumlpll ,_ Ncoonnnsutl l&
,       | c                     ^o
nst &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |         In file included from  s2/s2builderutil_find_polygon_degeneracies.cc : 18 :
 In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h : 24 :
 In file included from f../src/s2/s2builder.ha:l36s:
eIn file included from ,../src/s2/mutable_s2shape_index.h :t41r:
uIn file included from e../src/s2/s2cell_id.h):;43
:
      In file included from | ../src/s2/s1angle.h                  ~~~~~~~~~~~~:
28:
In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/container/internal/btree_container.h27::
511In file included from :../src/s2/s2coder.h47::23 :
note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'ABSL_INTERNAL_X':
733:29:   511warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       733  |      sAtBaStLi_cI NcToEnRsNtA Ls_tAdT:T:RsItBrUiTnEg_*C AaPbTsUlR_EnDo_nBnYu(ltlh iMso)v)e)d F r o m S t r i n g ( ) ; 
        |                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:                                               ^~~~expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/container/internal/btree_container.h:
:527/usr/local/clang/include/absl/status/status.h::30751:: 61warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
527 |       751  |      s t a t i c   u i n ttprture_,t  fPaolisnet)e;r
T      o| R                             ^e
p(/usr/local/clang/include/absl/container/internal/btree_container.hs:t496a:t9u:s _note: imacro 'ABSL_INTERNAL_X' defined heren
ter  n496a | l#:d:eSftianteu sARBeSpL*_ IaNbTsElR_NnAoLn_nXu(lFlu nrc),; 
C      a| l                                                            ^l
ee/usr/local/clang/include/absl/base/nullability.h,: 241K:Q22u:a lnote: ,expanded from macro 'absl_nonnull' 
MQ  u241a | l#,d eKfVianleu ea,b sMlV_anlounen,u l.l. ._)N o n n u l\l

            | |         ^                     ^

In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull Rep/usr/local/clang/include/absl/container/internal/btree_container.hT:o526P:o3i:n twarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
(
      |                                              ^526
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(fiinnsee ratb_solr__naosnsniuglnl,  _iNnosnenrutl_lo
r      _| a                     ^s
sign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from In file included from s2/s2builderutil_find_polygon_degeneracies.cc../src/s2/s2builderutil_get_snapped_winding_delta.h::1824:
:
In file included from In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h../src/s2/s2builder.h::2436:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/mutable_s2shape_index.h::3630:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/btree_map.h::4167:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2cell_id.h::54043::
3In file included from :../src/s2/s1angle.h :28warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h540: | 23 :
 A/usr/local/clang/include/absl/status/status.hB:S1031L:_42I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_X (1031i | nisnelritn_eo rc_oansssti gsnt,a tiunss_eirntt_eorrn_aals:s:iSgtna_tiumspRle,p *& &a,b sclo_nnsotn n&u,l lf aSltsaet,u
s      :| :  ^R
ep/usr/local/clang/include/absl/container/internal/btree_container.hT:o511P:o52i:n tnote: eexpanded from macro 'ABSL_INTERNAL_X'r
(
      |                                            ^511
 |   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBoUnTnEu_lClA P_TNUoRnEnDu_lBlY
(      t| h                     ^i
s)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNALIn file included from _s2/s2builderutil_find_polygon_degeneracies.ccI:F18_:
fIn file included from a../src/s2/s2builderutil_find_polygon_degeneracies.hl:s24e:
(In file included from i../src/s2/s2builder.hf:_36s:
aIn file included from t../src/s2/mutable_s2shape_index.hi:s41f:
iIn file included from e../src/s2/s2cell_id.hd:,43 :
.In file included from .../src/s2/s1angle.h.:)28 :
_In file included from _../src/s2/s2point.hV:A27_:
AIn file included from R../src/s2/s2coder.hG:S23_:
_/usr/local/clang/include/absl/status/status.h
:      1038| :        ^33
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnIn file included from us2/s2builderutil_get_snapped_winding_delta.ccl:l50 :
rIn file included from e../src/s2/s2builderutil_get_snapped_winding_delta.hp:)24 :
{In file included from 
../src/s2/s2builder.h      :| 36                                ^:

In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/base/nullability.h30::
241In file included from :/usr/local/clang/include/absl/container/btree_map.h22::67 :
note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
543:23  :241  | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
ef  i543n | e   a b s l _ n o n n u l l   _ N o ntnruulel)
;      
|                            ^| 
                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2builderutil_find_polygon_degeneracies.cc542::183:
:In file included from  ../src/s2/s2builderutil_find_polygon_degeneracies.h:warning: 24:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2builder.h:36:
In file included from   ../src/s2/mutable_s2shape_index.h542: | 41 :
 In file included from A../src/s2/s2cell_id.hB:S43L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
XIn file included from (../src/s2/s2coder.hi:n23s:
e/usr/local/clang/include/absl/status/status.hr:t1063_:o13r:_ awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ign ,1063  | icnosnesrtt _cohra_ra*s saibgsnl__inmopnln,u l&l& ,S tcaotnusstM e&s,s afgaelAsseC,S
t      r| (  ^

      |             ^/usr/local/clang/include/absl/container/internal/btree_container.h
:509:52/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'ABSL_INTERNAL_X':
 note: expanded from macro 'absl_nonnull'  
509 |     241  |  # d e f i n eA BaSbLs_lI_NnToEnRnNuAlLl_ A_TNToRnInBuUlTlE
_      C| A                     ^P
TURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h82::
552In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h3::23 :
In file included from warning: /usr/local/clang/include/absl/crc/crc32c.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:  84552:
 | In file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.h :A29B:
SL/usr/local/clang/include/absl/strings/internal/str_format/parser.h_:I227N:T11E:R Nwarning: A'enable_if' is a clang extension [-Wgcc-compat]L
_X(in  s227e | r t _ o r _ a s s i genn,a bilnes_eirft(_sotrr__afsosrimgant__iimnptle,r n&a&l,: :&E&n,s utrreuCeo,n sftaelxsper)(;f
o      r| m  ^a
t)/usr/local/clang/include/absl/container/internal/btree_container.h,:
509      :| 52          ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  509/usr/local/clang/include/absl/strings/internal/str_format/parser.h | : 229 : 11 :   warning:  'enable_if' is a clang extension [-Wgcc-compat] 
  A  B229S | L _ I N T E R N A L _eAnTaTbRlIeB_UiTfE(_sCtArP_TfUoRrEmDa_tB_Yi(nttheirsn)a)l,: : V a l i d F o r m a t I m p l < C . . . > ( f\o
r      m| a                                                   ^t
),/usr/local/clang/include/absl/container/internal/common.h
:      31| :          ^9
: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(st/usr/local/clang/include/absl/container/internal/btree_container.hr:_553f:o3r:m awarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
inte  r553n | a l :A:BESnLs_uIrNeTCEoRnNsAtLe_xXp(ri(nss)e,r t"_coorn_satsesxipgrn ,t rianps"e)r,t
_      o| r          ^_
assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |      /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 149 : 22 :A Bwarning: S'enable_if' is a clang extension [-Wgcc-compat]L
_INT  E149R | N A L _ A T T_R_IaBtUtTrEi_bCuAtPeT_U_R(E(De_nBaYb(lteh_iisf)()s,t r _ f o r m a t _ i n t e r n a l : : E n s u r\e
C      |                                                    ^o
ns/usr/local/clang/include/absl/container/internal/common.ht:e31x:p9r:( snote: )macro 'ABSL_INTERNAL_IF_true' defined here,

      |                         ^31
 | #define ABSL_INTERNAL_IF_true(if_satisf/usr/local/clang/include/absl/strings/internal/str_format/bind.hi:e158d:,22 :. .warning: .'enable_if' is a clang extension [-Wgcc-compat])
 if_  s158a | t i s f i e d_
_      a| t        ^t
ribute__((enable_ifIn file included from (s2/s2builderutil_get_snapped_winding_delta.ccV:a50l:
iIn file included from d../src/s2/s2builderutil_get_snapped_winding_delta.hF:o24r:
mIn file included from a../src/s2/s2builder.ht:I36m:
pIn file included from l../src/s2/mutable_s2shape_index.h<:A30r:
gIn file included from s/usr/local/clang/include/absl/container/btree_map.h.:.67.:
>/usr/local/clang/include/absl/container/internal/btree_container.h(:s553):,3 :" bwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
 form  a553t |   t rAaBpS"L)_)I)N
T      E| R                     ^N
AL_X(insert_or_assign, insert_or_a/usr/local/clang/include/absl/strings/internal/str_format/bind.hs:s162i:g22n:_ iwarning: m'enable_if' is a clang extension [-Wgcc-compat]p
l, &  &162, |   & & ,   t r_u_ea,t ttrriubeu)t;e
_      _| (  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(
ena/usr/local/clang/include/absl/container/internal/btree_container.hb:l509e:_47i:f (note: Vexpanded from macro 'ABSL_INTERNAL_X'a
lid  F509o | r m a t I m p l < A rAgBsS.L._.I>N(TsE)R,N A"Lb_aAdT TfRoIrBmUaTtE _tCrAaPpT"U)R)E)D
_      B| Y                     ^(
this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                In file included from  s2/s2builderutil_lax_polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_lax_polygon_layer.h : 42\:

In file included from       ../src/s2/mutable_s2shape_index.h| :                                                   ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/common.h::6632:
:In file included from 9/usr/local/clang/include/absl/container/internal/btree.h:: 73note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
/usr/local/clang/include/absl/strings/cord.h:82:
   In file included from 32/usr/local/clang/include/absl/crc/internal/crc_cord_state.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/crc/crc32c.hi:n32e:
 /usr/local/clang/include/absl/strings/str_format.hA:B155S:L36_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL  _155I | F _ feaxlpslei(ciift_ sFaotrimsaftiCeodu,n t.C.a.p)t u_r_eV(Ai_nAtR*G Sa_b_s
l      _| n        ^o
nnull p) : pIn file included from _s2/s2builderutil_get_snapped_winding_delta.cc(:p50):
 In file included from {../src/s2/s2builderutil_get_snapped_winding_delta.h}:
24      :
| In file included from                                    ^../src/s2/s2builder.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/mutable_s2shape_index.h241::3022:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:note: 67expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/container/internal/btree_container.h:  568241: | 3#:d ewarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ne   a568b | s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uXl(li
n      s| e                     ^r
t_or_assign, insert_or_assign_hinIn file included from ts2/s2builderutil_lax_polygon_layer.cc_:i18m:
pIn file included from l../src/s2/s2builderutil_lax_polygon_layer.h,: 42c:
oIn file included from n../src/s2/mutable_s2shape_index.hs:t30 :
&In file included from ,/usr/local/clang/include/absl/container/btree_map.h :&66&:
,In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 73  ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h82::
511In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h52::23 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/crc/crc32c.h
:32:
/usr/local/clang/include/absl/strings/str_format.h  :511164 | : 8 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      164A | B S Li_nItN*T EaRbNsAlL__nAoTnTnRuIlBlU TUEn_uCsAePdT(U)R E{D _rBeYt(utrhni sp)_);)  } 
        |         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e\f
i      n| e                                                   ^ 
ab/usr/local/clang/include/absl/container/internal/common.hs:l32_:n9o:n nnote: umacro 'ABSL_INTERNAL_IF_false' defined herel
   32 | l# d_eNfoinnneu lABlS
L      _| I                     ^N
TERNAL_IF_false(if_satisfied, ...) __VA_ARGSIn file included from _s2/s2builderutil_lax_polygon_layer.cc_:
18      :
| In file included from         ^../src/s2/s2builderutil_lax_polygon_layer.h
:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const In file included from &s2/s2builderutil_lax_polygon_layer.cc,: 18&:
&In file included from ,../src/s2/s2builderutil_lax_polygon_layer.h
:      42| :
  ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509/usr/local/clang/include/absl/container/btree_map.h::5266::
 In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'ABSL_INTERNAL_X':
73:
In file included from /usr/local/clang/include/absl/strings/cord.h:  82509:
 | In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.hA:B380S:L43_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL  _380A | TsTtRdI:B:UsTtEr_iCnAgPTURE&D _SBtYr(Atphpiesn)d)F,o r m a t ( s t d : : s t r i n g *   a b s l _ n\o
n      n| u                                                   ^l
l /usr/local/clang/include/absl/container/internal/common.hd:s32t:,9
:       | note:                                           ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/base/nullability.h   :32241 | :#22d:e fine note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ IaFb_sfla_lnsoen(niufl_ls a_tNiosnfniueldl,
       .| .                     ^.
) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTIn file included from Rs2/s2builderutil_lax_polygon_layer.ccI:B18U:
TIn file included from E../src/s2/s2builderutil_lax_polygon_layer.h_:C42A:
PIn file included from T../src/s2/mutable_s2shape_index.hU:R30E:
DIn file included from _/usr/local/clang/include/absl/container/btree_map.hB:Y66(:
tIn file included from h/usr/local/clang/include/absl/container/internal/btree.hi:s73):
)In file included from )/usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 440 : 24 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 \
      |                                                      ^440
 | i/usr/local/clang/include/absl/container/internal/common.hn:t31 :F9P:r inote: nmacro 'ABSL_INTERNAL_IF_true' defined heret
F(s   t31d | :#:dFeIfLiEn*e  aAbBsSlL__nIoNnTnEuRlNlA Lo_uItFp_uttr,u ec(oinfs_ts aFtoirsmfaiteSdp,e c.<.A.r)g si.f._.s>a&t ifsofrimeadt
,      
|               ^| 
                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2builderutil_get_snapped_winding_delta.ccn:e50 :
aIn file included from b../src/s2/s2builderutil_get_snapped_winding_delta.hs:l24_:
nIn file included from o../src/s2/s2builder.hn:n36u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h
:      570| :                     ^3
: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_In file included from hs2/s2builderutil_lax_polygon_layer.cci:n18t:
_In file included from i../src/s2/s2builderutil_lax_polygon_layer.hm:p42l:
,In file included from  ../src/s2/mutable_s2shape_index.hc:o30n:
sIn file included from t/usr/local/clang/include/absl/container/btree_map.h :&66,:
 In file included from &/usr/local/clang/include/absl/container/internal/btree.h&:,73
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h  :57123 | :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 469 : 20 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   f  a469l | sien,t  tSrNuPer,i nctoFn(scth_airt*e raabtsolr_(nhoinnntu)l lA BoSuLt_pIuNtT,E RsNtAdL:_:CsOiMzMeA_)t; 
s      i| z                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
,
      | /usr/local/clang/include/absl/container/internal/btree_container.h                   ^:
511:47/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'ABSL_INTERNAL_X'22
: note:   expanded from macro 'absl_nonnull'511
 |     241  |  # d e f i n eA BaSbLs_lI_NnToEnRnNuAlLl_ A_TNToRnInBuUlTlE
_      C| A                     ^P
TURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |       In file included from  s2/s2builderutil_lax_polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_lax_polygon_layer.h : 42 :
 In file included from  ../src/s2/mutable_s2shape_index.h :t30r:
uIn file included from e/usr/local/clang/include/absl/container/btree_map.h,: 66t:
rIn file included from u/usr/local/clang/include/absl/container/internal/btree.he:,73 :
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s82t:
_In file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:e23r:
aIn file included from t/usr/local/clang/include/absl/crc/crc32c.ho:r32(:
hi/usr/local/clang/include/absl/strings/str_format.hn:t860): 43A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INTE  R860N | A L _fCrOiMeMnAd) ;v
o      i| d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Abs/usr/local/clang/include/absl/container/internal/btree_container.hl:F509o:r47m:a tnote: Fexpanded from macro 'ABSL_INTERNAL_X'l
ush  (509F | o r m a t S i n k *  AaBbSsLl__InNoTnEnRuNlAlL _sAiTnTkR,I
B      U| T                                          ^E
_CA/usr/local/clang/include/absl/base/nullability.hP:T241U:R22E:D _note: Bexpanded from macro 'absl_nonnull'Y
(t  h241i | s#)d)e,f i n e   a b s l _ n o n n u l l   _ N o n n u l\l

            | |                                               ^~~~                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           In file included from As2/s2builderutil_lax_polygon_layer.ccB:S18L:
_In file included from I../src/s2/s2builderutil_lax_polygon_layer.hN:T42E:
RIn file included from N../src/s2/mutable_s2shape_index.hA:L30_:
AIn file included from T/usr/local/clang/include/absl/container/btree_map.hT:R66I:
BIn file included from U/usr/local/clang/include/absl/container/internal/btree.hT:E73_:
CIn file included from A/usr/local/clang/include/absl/strings/cord.hP:T82U:
RIn file included from E/usr/local/clang/include/absl/crc/internal/crc_cord_state.hD:_23B:
YIn file included from (/usr/local/clang/include/absl/crc/crc32c.ht:h32i:
s/usr/local/clang/include/absl/strings/str_format.h):)867): 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       867  |      e x p l i c i t   F\o
r      m| a                                                   ^t
Si/usr/local/clang/include/absl/container/internal/common.hn:k31(:s9t:r _note: fmacro 'ABSL_INTERNAL_IF_true' defined hereo
r   m31a | t#_dienftienren aAlB:S:LF_oIrNmTaEtRSNiAnLk_IImFp_lt*r uaeb(silf__nsoantniuslfli esd),
       .| .                                                           ^.
) /usr/local/clang/include/absl/base/nullability.hi:f241_:s22a:t inote: sexpanded from macro 'absl_nonnull'f
ie  d241
 |       #| d        ^e
fine absl_nonnIn file included from us2/s2builderutil_get_snapped_winding_delta.ccl:l50 :
_In file included from N../src/s2/s2builderutil_get_snapped_winding_delta.ho:n24n:
uIn file included from l../src/s2/s2builder.hl:
36      :
| In file included from                      ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABIn file included from Ss2/s2builderutil_lax_polygon_layer.ccL:_18I:
NIn file included from T../src/s2/s2builderutil_lax_polygon_layer.hE:R42N:
AIn file included from L../src/s2/mutable_s2shape_index.h_:X30(:
iIn file included from n/usr/local/clang/include/absl/container/btree_map.hs:e66r:
tIn file included from _/usr/local/clang/include/absl/container/internal/btree.ho:r73_:
aIn file included from s/usr/local/clang/include/absl/strings/cord.hs:i82g:
nIn file included from ,/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :i23n:
sIn file included from e/usr/local/clang/include/absl/crc/crc32c.hr:t32_:
o/usr/local/clang/include/absl/strings/str_format.hr:_869a:s40s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
hin  t869_ | i m pslt,r _cfoonrsmta t&_,i n&t&e,r
n      a| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
:Fo  r575m | a t S i n k I m p l *   a b s l _ n otnrnuuel,l  tsriunek,_ ;c
o      n| s                                       ^t
_i/usr/local/clang/include/absl/base/nullability.ht:e241r:a22t:o rnote: (expanded from macro 'absl_nonnull'h
in  t241) |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oCnOnMuMlAl) ;_
N      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ull/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                     ^47
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builderutil_find_polygon_degeneracies.cc:18:
In file included from ../src/s2/s2builderutil_find_polygon_degeneracies.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:   3068:
 | In file included from  /usr/local/clang/include/absl/container/btree_map.h :w66h:
iIn file included from l/usr/local/clang/include/absl/container/internal/btree.he: 73(:
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s86t:
 ch/usr/local/clang/include/absl/strings/cord_analysis.ha:r32*: 47a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nullab   l32e |  saibzsel__tl oGge_tiEnstteirmnaalt_ecdhMeecmko_roypU_sraegseu(lcto n s t   C o r d R e p\*
       a| b                     ^s
l_no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  rnote: eexpanded from macro 'absl_nullable'p
);  
257       | | #                                              ^d
efin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   In file included from 50s2/s2builderutil_find_polygon_degeneracies.cc | :s18i:
zIn file included from e../src/s2/s2builderutil_find_polygon_degeneracies.h_:t24 :
GIn file included from e../src/s2/s2builder.ht:M36o:
rIn file included from e../src/s2/mutable_s2shape_index.hP:r44e:
cIn file included from i../src/s2/s2pointutil.hs:e27M:
e../src/s2/util/math/matrix3x3.hm:o276r:y5U:s awarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(c../src/s2/base/logging.ho:n37s:t21 :C onote: rexpanded from macro 'S2_CHECK_NE'd
Re   p37* |  #adbesfli_nneo nSn2u_lClH ErCeKp_)N;E
       C| H                                                ^E
CK/usr/local/clang/include/absl/base/nullability.h_:N241E:
22      :|                      ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.h
:120  :2413 | :# dnote: eexpanded from macro 'CHECK_NE'f
ine   120a | b s lA_BnSoLn_nLuOlGl_ I_NNToEnRnNuAlLl_
C      H| E                     ^C
K_NE_IMPL((val1), In file included from #s2/s2builderutil_lax_polygon_layer.ccv:a18l:
1In file included from ,../src/s2/s2builderutil_lax_polygon_layer.h :(42v:
aIn file included from l../src/s2/mutable_s2shape_index.h2:)30,:
 In file included from #/usr/local/clang/include/absl/container/btree_map.hv:a66l:
2In file included from )/usr/local/clang/include/absl/container/internal/btree.h
:      73| :
  ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/log/internal/check_impl.h86::
51/usr/local/clang/include/absl/strings/cord_analysis.h::356:: 56note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 |      56A | BsSiLz_eL_OtG _GIeNtTEEsRtNiAmLa_tCeHdEFCaKi_rOSPh(aCrheeMcekm_oNrEy,U s!a=g,e (vcaoln1s,t  Cvoarld1R_etpe*x ta,b svla_ln2o,n nvualll2 _rteepx)t;)

            | |                                                        ^  ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::24175::2261::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'

  241 |    #75d | e f iAnBeS La_bLsOlG__nIoNnTnEuRlNlA L__NCoHnEnCuKl(l:
:      a| b                     ^s
l::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 In file included from 1294s2/s2builderutil_get_snapped_winding_delta.cc | : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 41 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
   /usr/local/clang/include/absl/status/internal/status_internal.h : 119 : 14c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 void  *119  | a b sSlt_antounsnRuelpl*  oabbjs,l
_      n| o                                                             ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :C22l:o nnote: eexpanded from macro 'absl_nonnull'(

        | 241             ^ | 
#def/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2builderutil_get_snapped_winding_delta.cc: 501309:
 | In file included from v../src/s2/s2builderutil_get_snapped_winding_delta.ho:i24d:
 In file included from R../src/s2/s2builder.he:g36i:
sIn file included from t../src/s2/mutable_s2shape_index.he:r41C:
oIn file included from n../src/s2/s2cell_id.hd:V43a:
rIn file included from T../src/s2/s1angle.hr:a28c:
eIn file included from r../src/s2/s2point.h(:v27o:
iIn file included from d../src/s2/s2coder.h :(23*:
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
n/usr/local/clang/include/absl/status/internal/status_internal.ho:n125n:u14l:l  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
)(
        125|  |                                   ^ 
 S/usr/local/clang/include/absl/base/nullability.ht:a241t:u22s:R enote: pexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bCsllo_nneoAnnnduUlnlr e_fN(o
n      n| u             ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: In file included from expanded from macro 'absl_nonnull's2/s2builderutil_lax_polygon_layer.cc
:18:
  In file included from 241../src/s2/s2builderutil_lax_polygon_layer.h | :#42d:
eIn file included from f../src/s2/mutable_s2shape_index.hi:n30e:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.ho:n73n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94_:
NIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:
1310      :| 17                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnuIn file included from ls2/s2builderutil_get_snapped_winding_delta.ccl: 50m:
sIn file included from g../src/s2/s2builderutil_get_snapped_winding_delta.h,: 24c:
oIn file included from n../src/s2/s2builder.hs:t36 :
vIn file included from o../src/s2/mutable_s2shape_index.hi:d41*:
 In file included from a../src/s2/s2cell_id.hb:s43l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27c:
vIn file included from )../src/s2/s2coder.h):;23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                ^:
67:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/status/internal/status_internal.h241::12822::14 :note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d128e | f i nSet aatbusslR_enpo*n naublsll __nNoonnnnuullll 
C      l| o                     ^n
eAndUnreIn file included from fs2/s2builderutil_lax_polygon_layer.cc(:)18 :
cIn file included from o../src/s2/s2builderutil_lax_polygon_layer.hn:s42t:
;In file included from 
../src/s2/mutable_s2shape_index.h      :| 30             ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/base/nullability.h66::
241In file included from :/usr/local/clang/include/absl/container/internal/btree.h22::73 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i1310n:e47 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no n1310n | u l l   _cNoonnsntu lclh
a      r| *                     ^ 
absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internaIn file included from ls2/s2builderutil_lax_polygon_layer.cc:::18S:
tIn file included from a../src/s2/s2builderutil_lax_polygon_layer.ht:u42s:
RIn file included from e../src/s2/mutable_s2shape_index.hp:*30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n73u:
l/usr/local/clang/include/absl/strings/cord.hl: 501P:r52e:p awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ToMo  d501i | f y ( 
       e| x                                     ^p
lic/usr/local/clang/include/absl/base/nullability.hi:t241 :C22h:u nnote: kexpanded from macro 'absl_nonnull'I
te  r241a | t#odre(fcionred _aibnstle_rnnoanln:u:lClo r_dNRoenpn*u lalb
s      l| _                     ^n
onnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2builderutil_get_snapped_winding_delta.cco:n50n:
uIn file included from l../src/s2/s2builderutil_get_snapped_winding_delta.hl:
24      :
| In file included from                      ^../src/s2/s2builder.h
:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:In file included from 29s2/s2builderutil_lax_polygon_layer.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2builderutil_lax_polygon_layer.h
:42:
In file included from ../src/s2/mutable_s2shape_index.h  :73230 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hs:t66a:
tIn file included from i/usr/local/clang/include/absl/container/internal/btree.hc: 73c:
o/usr/local/clang/include/absl/strings/cord.hn:s504t: 40s:t dwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
str  i504n | g *   a besxlp_lniocnintu lClh uEnmkpIttyeSrtartionrg((c);o
n      s| t                            ^ 
Co/usr/local/clang/include/absl/base/nullability.hr:d241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fcionred )a;b
s      l| _                                       ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      In file included from | s2/s2builderutil_get_snapped_winding_delta.cc                     ^:
50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2builderutil_lax_polygon_layer.cc::2318:
:
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2builderutil_lax_polygon_layer.h733::4229:
:In file included from  ../src/s2/mutable_s2shape_index.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]30
:
  In file included from 733/usr/local/clang/include/absl/container/btree_map.h | : 66 :
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.ha:t73i:
c/usr/local/clang/include/absl/strings/cord.h :c507o:n43s:t  warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
d::str  i507n | g *   a bvsoli_dn oInnniutlTlr eMeo(vceodrFdr_oimnStterrinnagl(:):;C
o      r| d                            ^R
ep/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dterfeien)e; 
a      b| s                                          ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2builderutil_lax_polygon_layer.cc../src/s2/s2coder.h::1823:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2builderutil_lax_polygon_layer.h::75142::
61In file included from :../src/s2/mutable_s2shape_index.h :30warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h751: | 73 :
 /usr/local/clang/include/absl/strings/cord.hs:t525a:t35i:c  warning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ntpt  r525_ | t   P o ianbtselr:T:ocRoerpd(_sitnatteursn_ailn:t:eCronradlR:e:pS*t aatbusslR_enpu*l laabbslle_ ncounrnruelnlt _rl)e;a
f      _|                                                              ^=
 n/usr/local/clang/include/absl/base/nullability.hu:l241l:p22t:r ;note: 
expanded from macro 'absl_nonnull'      
|                                   ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |         In file included from  s2/s2builderutil_get_snapped_winding_delta.cc : 50 :
 In file included from  ../src/s2/s2builderutil_get_snapped_winding_delta.h : 24 :
 In file included from  ../src/s2/s2builder.h :C36o:
rIn file included from d../src/s2/mutable_s2shape_index.hR:e41p:
*In file included from  ../src/s2/s2cell_id.ha:b43s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
rIn file included from e../src/s2/s2coder.hp:,23 :
co/usr/local/clang/include/absl/status/status.hn:s1063t: 13C:o rwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]z
Upd a1063t | ecSocnospte &c hsacro*p ea,b
s      l| _                             ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :S tnote: aexpanded from macro 'absl_nonnull't
us  M241e | s#sdaegfeiAnseC Satbrs(l
_      n| o            ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      In file included from | s2/s2builderutil_lax_polygon_layer.cc                     ^:
18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_get_snapped_winding_delta.cc:50:
In file included from ../src/s2/s2builderutil_get_snapped_winding_delta.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
575 warnings generated.
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_lax_polyline_layer.cc -o s2/s2builderutil_lax_polyline_layer.o
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:43:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_s2point_vector_layer.cc -o s2/s2builderutil_s2point_vector_layer.o
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polygon_layer.h:47:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
693 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_s2polygon_layer.cc -o s2/s2builderutil_s2polygon_layer.o
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_s2polyline_layer.cc -o s2/s2builderutil_s2polyline_layer.o
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builderutil_s2point_vector_layer.ccs2/s2builderutil_lax_polyline_layer.cc::1818:
:
In file included from In file included from ../src/s2/s2builderutil_s2point_vector_layer.h../src/s2/s2builderutil_lax_polyline_layer.h::2525:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/base/logging.h::2121:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/check.h::3737:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_impl.h::2121:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h::4041:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/nullstream.h/usr/local/clang/include/absl/log/internal/strip.h::3726:
:
/usr/local/clang/include/absl/strings/string_view.h/usr/local/clang/include/absl/log/internal/log_message.h::53306::543::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  306 |   a   b53s | lc_onnosntneuxlplr  ssttdr:i:nugn_ivqiueew_ pNturl<lLSoagfMeeSstsraignegDVaiteaw>( cdoantsat_ ;c
h      a| r  ^*
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241p | )# d{e
f      i| n                                                     ^e
 absl_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: _expanded from macro 'absl_nullable'N
on  n257u | l#ld
e      f| i                     ^n
e absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_s2polyline_vector_layer.cc -o s2/s2builderutil_s2polyline_vector_layer.o
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2builderutil_snap_functions.cc -o s2/s2builderutil_snap_functions.o
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2cap.cc -o s2/s2cap.o
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
575 warnings generated.
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2cell_id.cc -o s2/s2cell_id.o
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonn/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2cell_index.cc -o s2/s2cell_index.o
ull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2builderutil_lax_polyline_layer.cc      :| 18                     ^:

In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_In file included from ts2/s2builderutil_s2polygon_layer.cc :G18e:
tIn file included from E../src/s2/s2builderutil_s2polygon_layer.hs:t39i:
mIn file included from a../src/s2/base/logging.ht:e22d:
MIn file included from e/usr/local/clang/include/absl/log/log.hm:o209r:
yIn file included from U/usr/local/clang/include/absl/log/internal/log_impl.hs:a20g:
eIn file included from (/usr/local/clang/include/absl/log/absl_vlog_is_on.hc:o63n:
s/usr/local/clang/include/absl/log/internal/vlog_config.ht: 63C:o43r:d Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
* a   b63s | l _ neoxnpnluilcli tr ecpo)n;s
t      e| x                                              ^p
r V/usr/local/clang/include/absl/base/nullability.hL:o241g:S22i:t enote: (expanded from macro 'absl_nonnull'c
on  s241t |  #cdheafri*n ea basbls_ln_onnonnunlull lf )_
N      o| n                                          ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_lax_polyline_layer.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_lax_polyline_layer.hl:l27
:
      In file included from | ../src/s2/mutable_s2shape_index.h                     ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnullIn file included from  s2/s2builderutil_s2polygon_layer.ccr:e18p:
)In file included from ;../src/s2/s2builderutil_s2polygon_layer.h
:      39| :
                                                ^In file included from 
../src/s2/base/logging.h:22/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/log.h::22209::
 In file included from /usr/local/clang/include/absl/log/internal/log_impl.hnote: :expanded from macro 'absl_nonnull'20
:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h  :24163 | :
#/usr/local/clang/include/absl/log/internal/vlog_config.hd:e96f:i60n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n   o96n | n u lflr i_eNnodn niunltl 
l      o| g                     ^_
internal::RegisterAIn file included from ns2/s2builderutil_lax_polyline_layer.ccd:I18n:
iIn file included from t../src/s2/s2builderutil_lax_polyline_layer.hi:a27l:
iIn file included from z../src/s2/mutable_s2shape_index.he:(30V:
LIn file included from o/usr/local/clang/include/absl/container/btree_map.hg:S66i:
tIn file included from e/usr/local/clang/include/absl/container/internal/btree.h*: 73a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_86n:
o/usr/local/clang/include/absl/strings/cord_analysis.hn:n56u:l56l:  vwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                            ^   
56 | s/usr/local/clang/include/absl/base/nullability.hi:z241e:_22t:  Gnote: eexpanded from macro 'absl_nonnull't
Es  t241i | m#adteefdiFnaei raSbhsalr_enMoenmnourlylU s_aNgoen(ncuolnls
t       | C                     ^o
rdRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUIn file included from Ns2/s2builderutil_s2polygon_layer.ccD:,18
:
      In file included from | ../src/s2/s2builderutil_s2polygon_layer.h                    ^:
39:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::25722::
23In file included from :/usr/local/clang/include/absl/log/log.h :209note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:20  :
257In file included from  | /usr/local/clang/include/absl/log/absl_vlog_is_on.h#:d63e:
fi/usr/local/clang/include/absl/log/internal/vlog_config.hn:e133 :a37b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ulla  b133l | ei n_tN uRlelgaibsltee
r      A| n                      ^d
Initialize(In file included from Vs2/s2builderutil_s2polyline_layer.ccL:o18g:
SIn file included from i../src/s2/s2builderutil_s2polyline_layer.ht:e25*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21v:
)In file included from ;/usr/local/clang/include/absl/log/internal/check_op.h
:      41| :
                                    ^In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::24147::
22In file included from :/usr/local/clang/include/absl/log/internal/structured_proto.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/proto.h:34  :
241/usr/local/clang/include/absl/types/span.h | :#740d:e21f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l740_ | n o n n u l l   _ N o n n u l l 
       T| *                     ^ 
absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
In file included from       s2/s2builderutil_s2polygon_layer.cc| :                      ^18
:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:39:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable In file included from _s2/s2builderutil_s2polyline_layer.ccN:u18l:
lIn file included from a../src/s2/s2builderutil_s2polyline_layer.hb:l25e:

In file included from       ../src/s2/base/logging.h| :                      ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:In file included from 13s2/s2builderutil_s2point_vector_layer.cc:: 18:
warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]../src/s2/s2builderutil_s2point_vector_layer.h
:27:
In file included from   ../src/s2/mutable_s2shape_index.h490: | 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
vIn file included from o/usr/local/clang/include/absl/container/internal/btree.hi:d69*:
 In file included from a/usr/local/clang/include/absl/container/internal/container_memory.hb:s29l:
_In file included from n/usr/local/clang/include/absl/hash/hash.hu:l89l:
aIn file included from b/usr/local/clang/include/absl/hash/internal/hash.hi:l89i:
tIn file included from y/usr/local/clang/include/absl/numeric/int128.h_:u41n:
kn/usr/local/clang/include/absl/types/compare.ho:w78n: 22a:r gwarning: )'enable_if' is a clang extension [-Wgcc-compat];

      |             ^
   78/usr/local/clang/include/absl/base/nullability.h | : 289 : 34 :   note: _expanded from macro 'absl_nullability_unknown'_
at  t289r | i#bduetfei_n_e( (aebnsalb_lneu_lilfa(bni l=i=t y0_,u n"kOnnolwyn  l_iNtuelrla_lu n`s0p`e ciisf iaeldl
o      w| e                                 ^d
."))) {}
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3:In file included from  s2/s2builderutil_s2polygon_layer.cc:warning: 18passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
  In file included from 568/usr/local/clang/include/absl/container/btree_map.h | : 66 :
AIn file included from B/usr/local/clang/include/absl/container/internal/btree.hS:L69_:
IIn file included from N/usr/local/clang/include/absl/container/internal/container_memory.hT:E29R:
NIn file included from A/usr/local/clang/include/absl/hash/hash.hL:_89X:
(In file included from i/usr/local/clang/include/absl/hash/internal/hash.hn:s79e:
rIn file included from t/usr/local/clang/include/absl/base/internal/endian.h_:o26r:
_a/usr/local/clang/include/absl/base/internal/unaligned_access.hs:s39i:g45n:,  warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
sert   _39o | ri_nalsisnieg nu_ihnitn1t6__itm pUln,a lciognnsetd L&o,a d&1&6,(
c      o| n  ^s
t /usr/local/clang/include/absl/container/internal/btree_container.hv:o511i:d52*:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  o511n | n u l l   p    )  A{B
S      L| _                                            ^I
NTE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:A Tnote: Texpanded from macro 'absl_nonnull'R
IB  U241T | E#_dCeAfPiTnUeR EaDb_sBlY_(ntohninsu)l)l)  _ N o n n u l l 
        |                       ^ 
           \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      In file included from | s2/s2builderutil_s2polygon_layer.cc        ^:
18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insertIn file included from _s2/s2builderutil_s2polygon_layer.cco:r18_:
aIn file included from s../src/s2/s2builderutil_s2polygon_layer.hs:i40g:
nIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :i66n:
sIn file included from e/usr/local/clang/include/absl/container/internal/btree.hr:t69_:
oIn file included from r/usr/local/clang/include/absl/container/internal/container_memory.h_:a29s:
sIn file included from i/usr/local/clang/include/absl/hash/hash.hg:n89_:
hIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hn:t79_:
iIn file included from m/usr/local/clang/include/absl/base/internal/endian.hp:l26,:
 /usr/local/clang/include/absl/base/internal/unaligned_access.hc:o51n:s45t:  &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
&&,   
51       | | i  ^n
li/usr/local/clang/include/absl/container/internal/btree_container.hn:e509 :u52i:n tnote: 6expanded from macro 'ABSL_INTERNAL_X'4
_t   U509n | a l i g n e d L o a dA6B4S(Lc_oInNsTtE RvNoAiLd_*A TaTbRsIlB_UnToEn_nCuAlPlT UpR)E D{_
B      Y| (                                            ^t
hi/usr/local/clang/include/absl/base/nullability.hs:)241):,22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o\n
n      u| l                                                   ^l
 _/usr/local/clang/include/absl/container/internal/common.hN:o32n:n9u:l lnote: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                      ^
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.ccIn file included from :s2/s2builderutil_lax_polyline_layer.cc18::
18In file included from :
../src/s2/s2builderutil_s2polygon_layer.hIn file included from :../src/s2/s2builderutil_lax_polyline_layer.h40::
27In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/mutable_s2shape_index.h66::
30In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h69::
67In file included from :
/usr/local/clang/include/absl/container/internal/container_memory.h/usr/local/clang/include/absl/container/internal/btree_container.h::29570:
:In file included from 3/usr/local/clang/include/absl/hash/hash.h:: 89:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/hash/internal/hash.h
:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h  :57026 | :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h :A57B:S36L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA   L57_ | Xi(nilnisneer tv_ooird_ aUsnsailging,n eidnSsteorrte_1o6r(_vaosisdi*g na_bhsiln_tn_oinmnpull,l  cpo,n suti n&t,1 6&_&t, 
v      )|    ^{

      /usr/local/clang/include/absl/container/internal/btree_container.h| :                                   ^511
:52:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'ABSL_INTERNAL_X'22
: note:   expanded from macro 'absl_nonnull'511
 |     241  |  # d e f i n eA BaSbLs_lI_NnToEnRnNuAlLl_ A_TNToRnInBuUlTlE
_      C| A                     ^P
TURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
In file included from    s2/s2builderutil_s2polygon_layer.cc31: | 18#:
dIn file included from e../src/s2/s2builderutil_s2polygon_layer.hf:i40n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.hA:B66S:
LIn file included from _/usr/local/clang/include/absl/container/internal/btree.hI:N69T:
EIn file included from R/usr/local/clang/include/absl/container/internal/container_memory.hN:A29L:
_In file included from I/usr/local/clang/include/absl/hash/hash.hF:_89t:
rIn file included from u/usr/local/clang/include/absl/hash/internal/hash.he:(79i:
fIn file included from _/usr/local/clang/include/absl/base/internal/endian.hs:a26t:
i/usr/local/clang/include/absl/base/internal/unaligned_access.hs:f61i:e36d:,  warning: .type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].
.)    i61f | _isnaltiinsef iveodi
d       | U        ^n
alignedStore3In file included from 2s2/s2builderutil_lax_polyline_layer.cc(:v18o:
iIn file included from d../src/s2/s2builderutil_lax_polyline_layer.h*: 27a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_30n:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h :p570,: 3u:i nwarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]3
2_t v  )570  | { 
       A| B                                   ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
X(  i241n | s#edretf_ionre_ aasbssilg_nn,o ninnuslelr t__Noorn_nauslsli
g      n| _                     ^h
int_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false,In file included from  s2/s2builderutil_s2polygon_layer.cct:r18u:
eIn file included from ,../src/s2/s2builderutil_s2polygon_layer.h :c40o:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.ht:_66i:
tIn file included from e/usr/local/clang/include/absl/container/internal/btree.hr:a69t:
oIn file included from r/usr/local/clang/include/absl/container/internal/container_memory.h(:h29i:
nIn file included from t/usr/local/clang/include/absl/hash/hash.h): 89A:
BIn file included from S/usr/local/clang/include/absl/hash/internal/hash.hL:_79I:
NIn file included from T/usr/local/clang/include/absl/base/internal/endian.hE:R26N:
A/usr/local/clang/include/absl/base/internal/unaligned_access.hL:_65C:O36M:M Awarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   65 | i/usr/local/clang/include/absl/container/internal/btree_container.hn:l511i:n47e:  vnote: oexpanded from macro 'ABSL_INTERNAL_X'i
d U  n511a | l i g n e d S t o r eA6B4S(Lv_oIiNdT*E RaNbAsLl__AnToTnRnIuBlUlT Ep_,C AuPiTnUtR6E4D__tB Yv()t h{i
s      )| )                                   ^)
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                                              ^~~~n
onnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
In file included from s2/s2builderutil_s2polygon_layer.cc:18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 574../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from :/usr/local/clang/include/absl/container/btree_map.h3::66 :
In file included from warning: /usr/local/clang/include/absl/container/internal/btree.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]69
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/container_memory.h::51129::
52In file included from :/usr/local/clang/include/absl/hash/hash.h :89note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h:79:
  /usr/local/clang/include/absl/base/internal/endian.h511: | 160 : 36 :      warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _160I | NiTnElRiNnAeL _uAiTnTtR1I6B_UtT EL_oCaAdP1T6U(RcEoDn_sBtY (vtohiids*) )a)b s l _ n o n n u l l   p )   { 
        |                                     ^ 
   /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                                                   ^ 
note: /usr/local/clang/include/absl/container/internal/common.hexpanded from macro 'absl_nonnull':
31:9  :241  | note: #dmacro 'ABSL_INTERNAL_IF_true' defined heree
fin   e31  | a#bdself_innoen nAuBlSlL __INNoTnEnRuNlAlL
_      I| F                     ^_
true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.hIn file included from :s2/s2builderutil_s2polygon_layer.cc27::
18In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2builderutil_s2polygon_layer.h30::
40In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h67::
66:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h574::693:
:In file included from  /usr/local/clang/include/absl/container/internal/container_memory.h:warning: 29'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h  :57479 | :
 /usr/local/clang/include/absl/base/internal/endian.h :A164B:S27L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN  A164L | _iXn(liinnsee rvto_iodr _Satsosrieg1n6,( vionisde*r ta_bosrl__ansosningunl_lh ipn,t _uiimnptl1,6 _cto nvs)t  {&
,       | &                          ^&
,
      /usr/local/clang/include/absl/base/nullability.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
:22:   note: 575expanded from macro 'absl_nonnull' | 
     241  |  # d e f i n e   a b s l _ ntornuneu,l lt r_uNeo,n ncuolnls
t      _| i                     ^t
erator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |        In file included from  s2/s2builderutil_s2polygon_layer.cc : 18A:
BIn file included from S../src/s2/s2builderutil_s2polygon_layer.hL:_40I:
NIn file included from T/usr/local/clang/include/absl/container/btree_map.hE:R66N:
AIn file included from L/usr/local/clang/include/absl/container/internal/btree.h_:A69T:
TIn file included from R/usr/local/clang/include/absl/container/internal/container_memory.hI:B29U:
TIn file included from E/usr/local/clang/include/absl/hash/hash.h_:C89A:
PIn file included from T/usr/local/clang/include/absl/hash/internal/hash.hU:R79E:
D/usr/local/clang/include/absl/base/internal/endian.h_:B168Y:(36t:h iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
))    168  |  i n l i n e   u i n t 3 2 _ t   L o a d 3\2
(      c| o                                              ^~~~n
st void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIIn file included from Bs2/s2builderutil_s2polygon_layer.ccU:T18E:
_In file included from C../src/s2/s2builderutil_s2polygon_layer.hA:P40T:
UIn file included from R/usr/local/clang/include/absl/container/btree_map.hE:D66_:
BIn file included from Y/usr/local/clang/include/absl/container/internal/btree.h(:t69h:
iIn file included from s/usr/local/clang/include/absl/container/internal/container_memory.h):)29,:
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 250 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      \250
 |       i| n                                                   ^l
ine/usr/local/clang/include/absl/container/internal/common.h :u32i:n9t:1 6note: _macro 'ABSL_INTERNAL_IF_false' defined heret
 Lo   a32d | 1#6d(ecfoinnset  AvBoSiLd_*I NaTbEsRlN_AnLo_nInFu_lfla lps)e ({i
f      _| s                                   ^a
tis/usr/local/clang/include/absl/base/nullability.hf:i241e:d22,:  .note: .expanded from macro 'absl_nonnull'.
)   _241_ | V#Ad_eAfRiGnSe_ _a
b      s| l        ^_
nonnull _NoIn file included from ns2/s2builderutil_lax_polyline_layer.ccn:u18l:
lIn file included from 
../src/s2/s2builderutil_lax_polyline_layer.h      :| 27                     ^:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assIn file included from is2/s2builderutil_s2polygon_layer.ccg:n18,:
 In file included from i../src/s2/s2builderutil_s2polygon_layer.hn:s40e:
rIn file included from t/usr/local/clang/include/absl/container/btree_map.h_:o66r:
_In file included from a/usr/local/clang/include/absl/container/internal/btree.hs:s69i:
gIn file included from n/usr/local/clang/include/absl/container/internal/container_memory.h_:h29i:
nIn file included from t/usr/local/clang/include/absl/hash/hash.h_:i89m:
pIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h,: 79&:
&/usr/local/clang/include/absl/base/internal/endian.h,: 254c:o27n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
,
      |     ^254
 | i/usr/local/clang/include/absl/container/internal/btree_container.hn:l511i:n52e:  vnote: oexpanded from macro 'ABSL_INTERNAL_X'i
d S  t511o | r e 1 6 ( v o i d *  AaBbSsLl__InNoTnEnRuNlAlL _pA,T TuRiInBtU1T6E__tC AvP)T U{R
E      D| _                          ^B
Y(/usr/local/clang/include/absl/base/nullability.ht:h241i:s22):) )note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u\l
l       | _                                                   ^N
on/usr/local/clang/include/absl/container/internal/common.hn:u32l:l9
:       | note:                      ^macro 'ABSL_INTERNAL_IF_false' defined here

   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) In file included from _s2/s2builderutil_s2polygon_layer.cc_:V18A:
_In file included from A../src/s2/s2builderutil_s2polygon_layer.hR:G40S:
_In file included from _/usr/local/clang/include/absl/container/btree_map.h
:      66| :
        ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:In file included from 27s2/s2builderutil_s2polygon_layer.cc:
:In file included from 18../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s2builderutil_s2polygon_layer.h:
:In file included from 40/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/container/btree_map.h:
:66/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 579/usr/local/clang/include/absl/container/internal/btree.h::369::
 In file included from /usr/local/clang/include/absl/container/internal/container_memory.hwarning: :29passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from   /usr/local/clang/include/absl/hash/internal/hash.h579: | 79 :
 /usr/local/clang/include/absl/base/internal/endian.hA:B262S:L27_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L262_ | Xi(nilnisneer tv_ooird_ aSstsoirgen3,2 (ivnosiedr*t _aobrs_la_snsoingnnu_lhli npt,_ iumipnlt,3 2&_&t,  vc)o n{s
t       | &                          ^,

      | /usr/local/clang/include/absl/base/nullability.h  ^:
241:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 509:note: 52expanded from macro 'absl_nonnull':
 note:   expanded from macro 'ABSL_INTERNAL_X'241
 | #d  e509f | i n e   a b s l _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lA
T      T| R                     ^I
BUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2builderutil_s2polygon_layer.cc::3218::
9In file included from :../src/s2/s2builderutil_s2polygon_layer.h :40note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
   In file included from 32/usr/local/clang/include/absl/container/internal/btree.h | :#69d:
eIn file included from f/usr/local/clang/include/absl/container/internal/container_memory.hi:n29e:
 In file included from A/usr/local/clang/include/absl/hash/hash.hB:S89L:
_In file included from I/usr/local/clang/include/absl/hash/internal/hash.hN:T79E:
R/usr/local/clang/include/absl/base/internal/endian.hN:A266L:_36I:F _warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
lse  (266i | fi_nslaitnies fuiiendt,6 4._.t. )L o_a_dV6A4_(AcRoGnSs_t_ 
v      o| i        ^d
* absl_noIn file included from ns2/s2builderutil_lax_polyline_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_lax_polyline_layer.hp:)27 :
{In file included from 
../src/s2/mutable_s2shape_index.h      :| 30                                   ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/base/nullability.h67::
241:/usr/local/clang/include/absl/container/internal/btree_container.h22::579 :3note: :expanded from macro 'absl_nonnull' 
warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #de  f579i | n e  AaBbSsLl__InNoTnEnRuNlAlL __XN(oinnnsuelrlt
_      o| r                     ^_
assign, insert_or_assign_hint_impl, &&, const &In file included from ,s2/s2builderutil_s2polygon_layer.cc
:      18| :
  ^In file included from 
../src/s2/s2builderutil_s2polygon_layer.h:40/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511/usr/local/clang/include/absl/container/btree_map.h::5266::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'ABSL_INTERNAL_X'69
:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:  29511:
 | In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.hA:B270S:L27_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L270_ | AiTnTlRiInBeU TvEo_iCdA PSTtUoRrEeD6_4B(Yv(otihdi*s )a)b)s l _ n o n n u l l   p ,   u i n t 6 4 _ t   v )\ 
{      
|                                                          ^| 
                          ^
/usr/local/clang/include/absl/container/internal/common.h:31/usr/local/clang/include/absl/base/nullability.h::9241:: 22:note:  macro 'ABSL_INTERNAL_IF_true' defined herenote: 
expanded from macro 'absl_nonnull'
     31241 |  | ##ddeeffiinnee  AaBbSsLl__InNoTnEnRuNlAlL __INFo_ntnruulel(
i      f| _                     ^s
atisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisIn file included from fs2/s2builderutil_s2point_vector_layer.cci:e18d:
,In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h.:.27.:
)In file included from  ../src/s2/mutable_s2shape_index.h_:_30V:
AIn file included from _/usr/local/clang/include/absl/container/btree_map.hA:R66G:
SIn file included from _/usr/local/clang/include/absl/container/internal/btree.h_:
70      :
| In file included from         ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :s2/s2builderutil_lax_polyline_layer.cc66::1841:
:In file included from  ../src/s2/s2builderutil_lax_polyline_layer.h:warning: 27:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h   :6667 | :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 588 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      588  |      A B S L _ I N T E R N A Li_nXt(_itnyspeer*t _aobrs_la_snsoingnnu,l li nosuetr)t;_
o      r| _                                        ^a
ssig/usr/local/clang/include/absl/base/nullability.hn:_241h:i22n:t _note: iexpanded from macro 'absl_nonnull'm
pl  ,241  | &#&d,e f&i&n,e  faablssle_,n
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.h :_511N:o52n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l

      |                      ^  
511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTIn file included from Us2/s2builderutil_s2point_vector_layer.ccR:E18D:
_In file included from B../src/s2/s2builderutil_s2point_vector_layer.hY:(27t:
hIn file included from i../src/s2/mutable_s2shape_index.hs:)30):
)In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
\/usr/local/clang/include/absl/strings/numbers.h
:      77| :                                                   ^61
: /usr/local/clang/include/absl/container/internal/common.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:9: note:    macro 'ABSL_INTERNAL_IF_true' defined here77
 | [[   n31o | d#idsecfairnde] ]A BbSoLo_lI NSTiEmRpNlAeLA_tIoFf_(tarbusel(:i:fs_tsraitnigs_fviieedw,  s.t.r.,)  filfo_asta*t iasbfsile_dn
o      n| n        ^u
ll out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2builderutil_lax_polyline_layer.cc241::1822:
:In file included from  ../src/s2/s2builderutil_lax_polyline_layer.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/mutable_s2shape_index.h:  30241:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e67f:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:e588 :a3b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
onnul  l588  | _ N oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(insert_or_assign, inIn file included from ss2/s2builderutil_s2point_vector_layer.cce:r18t:
_In file included from o../src/s2/s2builderutil_s2point_vector_layer.hr:_27a:
sIn file included from s../src/s2/mutable_s2shape_index.hi:g30n:
_In file included from h/usr/local/clang/include/absl/container/btree_map.hi:n66t:
_In file included from i/usr/local/clang/include/absl/container/internal/btree.hm:p70l:
,In file included from  /usr/local/clang/include/absl/container/internal/layout.h&:&198,:
 In file included from &/usr/local/clang/include/absl/strings/str_cat.h&:,116 :
fIn file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:s23e:
,/usr/local/clang/include/absl/strings/numbers.h
:      88| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~62
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]589
 |        88  |  [ [ n o d i s c a r d ] ]t rbuoeo,l  cSoinmsptl_eiAtteorda(taobrs(lh:i:nstt)r iAnBgS_Lv_iIeNwT EsRtNrA,L _dCoOuMbMlAe)*; 
a      b| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:  onote: uexpanded from macro 'ABSL_INTERNAL_X't
);
        | 511                                                             ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBoUnTnEu_lClA P_TNUoRnEnDu_lBlY
(      t| h                     ^i
s)))                    In file included from  s2/s2builderutil_s2point_vector_layer.cc : 18 :
\In file included from 
../src/s2/s2builderutil_s2point_vector_layer.h      :| 27                                              ^~~~:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                  /usr/local/clang/include/absl/container/internal/btree_container.h : 590 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       590  |   i nAtB_StLy_pIeN*T EaRbNsAlL__nXo(ninnuslelr to_uotr)_;a
s      s| i                                           ^g
n,/usr/local/clang/include/absl/base/nullability.h :i241n:s22e:r tnote: _expanded from macro 'absl_nonnull'o
r_  a241s | s#idgenf_ihnien ta_bismlp_ln,o n&n&u,l l& &_,N otnrnuuel,l

            | |   ^                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTIn file included from Es2/s2builderutil_s2point_vector_layer.ccR:N18A:
LIn file included from _../src/s2/s2builderutil_s2point_vector_layer.hA:T27T:
RIn file included from I../src/s2/mutable_s2shape_index.hB:U30T:
EIn file included from _/usr/local/clang/include/absl/container/btree_map.hC:A66P:
TIn file included from U/usr/local/clang/include/absl/container/internal/btree.hR:E70D:
_In file included from B/usr/local/clang/include/absl/container/internal/layout.hY:(198t:
hIn file included from i/usr/local/clang/include/absl/strings/str_cat.hs:)116):
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 116 : 55 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       116  |         \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e f i n e   A B S L _ I NaTbEsRlN:A:Li_nItF1_2t8r*u ea(bisfl__snaotninsuflile do,u t.).;.
)       | i                                                      ^f
_s/usr/local/clang/include/absl/base/nullability.ha:t241i:s22f:i enote: dexpanded from macro 'absl_nonnull'

      |           ^241
 | #define absl_nIn file included from os2/s2builderutil_lax_polyline_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_lax_polyline_layer.h :_27N:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                     ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERIn file included from Ns2/s2builderutil_s2point_vector_layer.ccA:L18_:
XIn file included from (../src/s2/s2builderutil_s2point_vector_layer.hi:n27s:
eIn file included from r../src/s2/mutable_s2shape_index.ht:_30o:
rIn file included from _/usr/local/clang/include/absl/container/btree_map.ha:s66s:
iIn file included from g/usr/local/clang/include/absl/container/internal/btree.hn:,70 :
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.hs:e198r:
tIn file included from _/usr/local/clang/include/absl/strings/str_cat.ho:r116_:
aIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:i23g:
n/usr/local/clang/include/absl/strings/numbers.h_:h118i:n56t:_ iwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
l, &  &118, |   & & ,   t r u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      591  |                                      f a lasbes,l :c:ounisntt_1i2t8e*r aatbosrl(_hnionntn)u lAlB SoLu_tI)N;T
E      R| N                                                       ^A
L_/usr/local/clang/include/absl/base/nullability.hC:O241M:M22A:) ;note: 
expanded from macro 'absl_nonnull'      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e509f:i47n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n509o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_In file included from Is2/s2builderutil_s2point_vector_layer.ccN:T18E:
RIn file included from N../src/s2/s2builderutil_s2point_vector_layer.hA:L27_:
AIn file included from T../src/s2/mutable_s2shape_index.hT:R30I:
BIn file included from U/usr/local/clang/include/absl/container/btree_map.hT:E66_:
CIn file included from A/usr/local/clang/include/absl/container/internal/btree.hP:T70U:
RIn file included from E/usr/local/clang/include/absl/container/internal/layout.hD:_198B:
YIn file included from (/usr/local/clang/include/absl/strings/str_cat.ht:h116i:
sIn file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h):)23 :
 /usr/local/clang/include/absl/strings/numbers.h : 152 : 37 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       152  |  v o i d   P u\t
T      w| o                                                   ^D
ig/usr/local/clang/include/absl/container/internal/common.hi:t32s:(9u:i nnote: tmacro 'ABSL_INTERNAL_IF_false' defined here3
2_t    32i | ,# dcehfairn*e  aAbBsSlL__nIoNnTnEuRlNlA Lb_uIfF)_;f
a      l| s                                    ^e
(i/usr/local/clang/include/absl/base/nullability.hf:_241s:a22t:i snote: fexpanded from macro 'absl_nonnull'i
ed  ,241  | .#.d.e)f i_n_eV Aa_bAsRlG_Sn_o_n
n      u| l        ^l
 _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27In file included from :
s2/s2builderutil_lax_polyline_layer.ccIn file included from :../src/s2/mutable_s2shape_index.h18::
30In file included from :
../src/s2/s2builderutil_lax_polyline_layer.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h27::
66In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h30::
70In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h67::
198:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h592::1163:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h:warning: 23:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/strings/numbers.h:158:57:   592 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _158I | NbToEoRlN AsLa_fXe(_isntsretrot1_6o_rb_aasses(iagbns,l :i:nssterritn_go_rv_iaesws itgenx_th,i nitn_ti1m6p_lt,*  &a&b,s l&_&n,o ntnruulel, 
v      a| l  ^u
e,/usr/local/clang/include/absl/container/internal/btree_container.h
:      509| :                                                        ^52
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'241
:22:   note: 509expanded from macro 'absl_nonnull' | 
     241  |  # d e f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this)),         In file included from  s2/s2builderutil_s2point_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from \/usr/local/clang/include/absl/container/btree_map.h
:      66| :
                                                   ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31/usr/local/clang/include/absl/container/internal/layout.h::9198::
 In file included from /usr/local/clang/include/absl/strings/str_cat.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:   2331:
 | /usr/local/clang/include/absl/strings/numbers.h#:d160e:f57i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL_  I160N | TbEoRoNlA Ls_aIfFe__tsrturet(oi3f2__sbaatsies(faibesdl,: :.s.t.r)i nigf__vsiaetwi stfeixetd,
       i| n        ^t
32_t* absl_nonnulIn file included from ls2/s2builderutil_lax_polyline_layer.cc :v18a:
lIn file included from u../src/s2/s2builderutil_lax_polyline_layer.he:,27
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                                        ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22:/usr/local/clang/include/absl/container/internal/btree_container.h :592note: :expanded from macro 'absl_nonnull'3
:   warning: 241'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
#defi  n592e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, insert_or_assigIn file included from ns2/s2builderutil_s2point_vector_layer.cc_:h18i:
nIn file included from t../src/s2/s2builderutil_s2point_vector_layer.h_:i27m:
pIn file included from l../src/s2/mutable_s2shape_index.h,:In file included from  30s2/s2builderutil_s2polygon_layer.cc&:
:&In file included from 18,/usr/local/clang/include/absl/container/btree_map.h:
 :In file included from &66../src/s2/s2builderutil_s2polygon_layer.h&:
,: In file included from 40t/usr/local/clang/include/absl/container/internal/btree.h:
r:In file included from u70/usr/local/clang/include/absl/container/btree_map.he:
:,In file included from 66
/usr/local/clang/include/absl/container/internal/layout.h:
      :In file included from | 198/usr/local/clang/include/absl/container/internal/btree.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
:
In file included from 69/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from   116/usr/local/clang/include/absl/container/internal/container_memory.h593:
: | In file included from 29 /usr/local/clang/include/absl/strings/internal/stringify_sink.h:
 :In file included from  23/usr/local/clang/include/absl/hash/hash.h :
: 89/usr/local/clang/include/absl/strings/numbers.h :
: In file included from 162 /usr/local/clang/include/absl/hash/internal/hash.h :: 5789 ::
  In file included from  warning: /usr/local/clang/include/absl/numeric/int128.h :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 41
 :
 /usr/local/clang/include/absl/types/compare.h   :t16278r | :ub22eo:,o  lwarning: c 'enable_if' is a clang extension [-Wgcc-compat]os
nasfte_   i_78ts | et rr at to o6 r4 (__hb_iaansttet)(r aiAbbBsuSltL:e_:_Is_Nt(Tr(EieRnnNgaA_bLvl_ieCe_OwiM fMt(Aen)x ;t=
,=        | i0                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n,
t 6"4/usr/local/clang/include/absl/container/internal/btree_container.hO_:nt509l*:y 47 a:lb isnote: tlexpanded from macro 'ABSL_INTERNAL_X'e_
rnaoln   n509`u | 0l `l    iv sa  l au le l, o
 w      Ae| Bd                                                        ^S.
L"_)/usr/local/clang/include/absl/base/nullability.hI):NT)241E :R{22N}:A
 L      note: _| expanded from macro 'absl_nonnull'A                     ^
T
T  R241I | B#UdTeEf_iCnAeP TaUbRsElD__nBoYn(ntuhlils )_)N,o n n u l l 
        |                       ^ 
              \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 592s2/s2builderutil_s2point_vector_layer.cc::318::
 In file included from warning: ../src/s2/s2builderutil_s2point_vector_layer.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/mutable_s2shape_index.h511::3052:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:note: 66expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
  In file included from 511/usr/local/clang/include/absl/container/internal/layout.h | : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h :A23B:
S/usr/local/clang/include/absl/strings/numbers.hL:_165I:N39T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_AT  T165R | I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) )a b s l : : i n t 1 2 8 *   a b s l _ n o n n u l\l
       v| a                                                   ^l
ue/usr/local/clang/include/absl/container/internal/common.h,: 31i:n9t:  bnote: amacro 'ABSL_INTERNAL_IF_true' defined heres
e);   
31       | | #                                      ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iInFe_ tarbusel(_info_nsnautlils f_iNeodn,n u.l.l.
)       | i                     ^f
_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:In file included from 18s2/s2builderutil_lax_polyline_layer.cc:
:In file included from 18../src/s2/s2builderutil_s2point_vector_layer.h:
:In file included from 27../src/s2/s2builderutil_lax_polyline_layer.h:
:In file included from 27../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/container/internal/btree.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h70::
592In file included from :/usr/local/clang/include/absl/container/internal/layout.h3::198 :
In file included from warning: /usr/local/clang/include/absl/strings/str_cat.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
  592/usr/local/clang/include/absl/strings/numbers.h | : 166 :A57B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTER  N166A | Lb_oXo(li nssaefret__sotrr_taosus8i_gbna,s ei(nasbesrlt:_:osrt_raisnsgi_gvni_ehwi ntte_xitm,p lu,i n&t&8,_ t&*& ,a btsrlu_en,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l v  a593l | u e , 
        |                                                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
tr  u241e | ,# dceofnisnte_ iatbesrla_tnoorn(nhuilnlt )_ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2builderutil_s2point_vector_layer.cc  :51118 | :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L66_:
IIn file included from N/usr/local/clang/include/absl/container/internal/btree.hT:E70R:
NIn file included from A/usr/local/clang/include/absl/container/internal/layout.hL:_198A:
TIn file included from T/usr/local/clang/include/absl/strings/str_cat.hR:I116B:
UIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hE:_23C:
A/usr/local/clang/include/absl/strings/numbers.hP:T168U:R59E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(thi  s168) | )b)o o l   s a f e _ s t r t o u 1 6 _ b a s e ( a b\s
l      :| :                                              ^~~~s
tring_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h618::2364:
: /usr/local/clang/include/absl/strings/numbers.h:warning: 170:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]59
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
618 |     A170B | SbLo_oIlN TsEaRfNeA_Ls_tXr(ttoruy3_2e_mbpalsaec(ea,b stlr:y:_setmrpilnagc_ev_iiemwp lt,e xcto,n suti n&t,3 2f_atl*s ea)b;s
l      _| n                                                               ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l596l: 9v:a lnote: umacro 'ABSL_INTERNAL_X' defined heree
,
      |                                                             ^596
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ Xa(bFsuln_cn,o nCnaulllle e_,N oKnQnuualll,
       K| V                     ^a
lue, ...)           In file included from  s2/s2builderutil_s2point_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h\:
30      :
| In file included from         ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e618f:i3n:e  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_  n618o | n n uAlBlS L__NIoNnTnEuRlNlA
L      _| X                     ^(
try_emplace, try_emplIn file included from as2/s2builderutil_s2point_vector_layer.ccc:e18_:
iIn file included from m../src/s2/s2builderutil_s2point_vector_layer.hp:l27,:
 In file included from c../src/s2/mutable_s2shape_index.ho:n30s:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.h&:,66 :
fIn file included from a/usr/local/clang/include/absl/container/internal/btree.hl:s70e:
)In file included from ;/usr/local/clang/include/absl/container/internal/layout.h
:      198| :
  ^In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 611/usr/local/clang/include/absl/strings/internal/stringify_sink.h::5223::
 /usr/local/clang/include/absl/strings/numbers.hnote: :expanded from macro 'ABSL_INTERNAL_X'175
:41:   warning: 611 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       175  |       A B S L _ I N T E R N A L _ A T T R I B U T Ea_bCsAlP:T:UuRiEnDt_1B2Y8(*t haibss)l)_,n o n n u l l   v a l u e ,   i n t   b a s e ) ; 
       \| 
                                        ^      
|                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/container/internal/common.h::2232:: 9:note:  expanded from macro 'absl_nonnull'note: 
macro 'ABSL_INTERNAL_IF_false' defined here
  241 |    #32d | e#fdienfei naeb sAlB_SnLo_nInNuTlElR N_ANLo_nInFu_lfla
l      s| e                     ^(
if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char*In file included from  s2/s2builderutil_lax_polyline_layer.cca:b18s:
lIn file included from _../src/s2/s2builderutil_lax_polyline_layer.hn:o27n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
RIn file included from o/usr/local/clang/include/absl/container/btree_map.hu:n67d:
T/usr/local/clang/include/absl/container/internal/btree_container.hr:i619p:D63o:u bwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
ToBu  f619f | e r (AdBoSuLb_lIeN TdE,R NcAhLa_rX*( tarbys_le_mnpolnancuel,l  tbruyf_feemrp)l;a
c      e| _      ^i
mp/usr/local/clang/include/absl/base/nullability.hl:,241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
&,   241t | r#udee)f;i
n      e|                                                                ^a
bs/usr/local/clang/include/absl/container/internal/btree_container.hl:_596n:o9n:n unote: lmacro 'ABSL_INTERNAL_X' defined herel
 _N  o596n | n#udlelf
i      n| e                     ^ 
ABSL_INIn file included from Ts2/s2builderutil_s2point_vector_layer.ccE:R18N:
AIn file included from L../src/s2/s2builderutil_s2point_vector_layer.h_:X27(:
FIn file included from u../src/s2/mutable_s2shape_index.hn:c30,:
 In file included from C/usr/local/clang/include/absl/container/btree_map.ha:l66l:
eIn file included from e/usr/local/clang/include/absl/container/internal/btree.h,: 70K:
QIn file included from u/usr/local/clang/include/absl/container/internal/layout.ha:l198,:
 In file included from K/usr/local/clang/include/absl/strings/str_cat.hV:a116l:
uIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h,: 23.:
./usr/local/clang/include/absl/strings/numbers.h.:)182 : 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      182  |  c h a r *   a b s l\_
n      o| n        ^n
ull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 619                     ^:
3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_IIn file included from Ns2/s2builderutil_s2point_vector_layer.ccT:E18R:
NIn file included from A../src/s2/s2builderutil_s2point_vector_layer.hL:_27X:
(In file included from t../src/s2/mutable_s2shape_index.hr:y30_:
eIn file included from m/usr/local/clang/include/absl/container/btree_map.hp:l66a:
cIn file included from e/usr/local/clang/include/absl/container/internal/btree.h,: 70t:
rIn file included from y/usr/local/clang/include/absl/container/internal/layout.h_:e198m:
pIn file included from l/usr/local/clang/include/absl/strings/str_cat.ha:c116e:
_In file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hm:p23l:
,/usr/local/clang/include/absl/strings/numbers.h :c183o:n7s:t  warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 tru  e183) | ;c
h      a| r  ^*
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s611l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   R611o | u n d T r i p F l o aAtBTSoLB_uIfNfTeErR(NfAlLo_aAtT TfR,I BcUhTaEr_*C AaPbTsUlR_EnDo_nBnYu(ltlh ibsu)f)f,e r ) ; 
        |        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e\f
i      n| e                                                   ^ 
ab/usr/local/clang/include/absl/container/internal/common.hs:l31_:n9o:n nnote: umacro 'ABSL_INTERNAL_IF_true' defined herel
l _   N31o | n#nduelfli
n      e|                       ^A
BSL_INTIn file included from Es2/s2builderutil_s2point_vector_layer.ccR:N18A:
LIn file included from _../src/s2/s2builderutil_s2point_vector_layer.hI:F27_:
tIn file included from r../src/s2/mutable_s2shape_index.hu:e30(:
iIn file included from f/usr/local/clang/include/absl/container/btree_map.h_:s66a:
tIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:f70i:
eIn file included from d/usr/local/clang/include/absl/container/internal/layout.h,: 198.:
.In file included from ./usr/local/clang/include/absl/strings/str_cat.h): 116i:
fIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:a23t:
i/usr/local/clang/include/absl/strings/numbers.hs:f183i:e58d:
       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  183 | char* absIn file included from ls2/s2builderutil_lax_polyline_layer.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_lax_polyline_layer.hu:l27l:
 In file included from R../src/s2/mutable_s2shape_index.ho:u30n:
dIn file included from T/usr/local/clang/include/absl/container/btree_map.hr:i67p:
F/usr/local/clang/include/absl/container/internal/btree_container.hl:o619a:t3T:o Bwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
fer(f  l619o | a t  AfB,S Lc_hIaNrT*E RaNbAsLl__Xn(otnrnyu_lelm pbluafcfee,r )t;r
y      _| e                                                         ^m
pl/usr/local/clang/include/absl/base/nullability.ha:c241e:_22i:m pnote: lexpanded from macro 'absl_nonnull',
 c  o241n | s#td e&f,i nter uaeb)s;l
_      n| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nul/usr/local/clang/include/absl/container/internal/btree_container.hl: 611_:N47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l
      |                        ^611
 |           ABSL_INIn file included from Ts2/s2builderutil_s2point_vector_layer.ccE:R18N:
AIn file included from L../src/s2/s2builderutil_s2point_vector_layer.h_:A27T:
TIn file included from R../src/s2/mutable_s2shape_index.hI:B30U:
TIn file included from E/usr/local/clang/include/absl/container/btree_map.h_:C66A:
PIn file included from T/usr/local/clang/include/absl/container/internal/btree.hU:R70E:
DIn file included from _/usr/local/clang/include/absl/container/internal/layout.hB:Y198(:
tIn file included from h/usr/local/clang/include/absl/strings/str_cat.hi:s116):
)In file included from ,/usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 191 : 42 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       191  |  s i z e _ t  \S
i      x| D                                              ^~~~i
gitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull/usr/local/clang/include/absl/container/internal/btree_container.h
:      620| :                     ^59
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSLIn file included from _s2/s2builderutil_s2point_vector_layer.ccI:N18T:
EIn file included from R../src/s2/s2builderutil_s2point_vector_layer.hN:A27L:
_In file included from X../src/s2/mutable_s2shape_index.h(:t30r:
yIn file included from _/usr/local/clang/include/absl/container/btree_map.he:m66p:
lIn file included from a/usr/local/clang/include/absl/container/internal/btree.hc:e70,:
 In file included from t/usr/local/clang/include/absl/container/internal/layout.hr:y198_:
eIn file included from m/usr/local/clang/include/absl/strings/str_cat.hp:l116a:
cIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:i23m:
p/usr/local/clang/include/absl/strings/numbers.hl:,198 :&7&:,  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
lse  )198; | 
c      h| a                                                          ^r
* /usr/local/clang/include/absl/container/internal/btree_container.ha:b596s:l9_:n onote: nmacro 'ABSL_INTERNAL_X' defined heren
ull   596F | a#sdteIfnitnTeo BAuBfSfLe_rI(NiTnEtR3N2A_Lt_ Xi(,F ucnhca,r *C aalblsele_,n oKnQnuualll,  bKuVfafleure),
       .| .      ^.
) /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l        ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, c/usr/local/clang/include/absl/container/internal/btree_container.hh:a620r:*3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_no  n620n | u l lA BbSuLf_fIeNrT)E
R      N| A                                                    ^L
_X/usr/local/clang/include/absl/base/nullability.h(:t241r:y22_:e mnote: pexpanded from macro 'absl_nonnull'l
ac  e241, |  #tdreyf_ienmep laabcsel__inmopnln,u l&l& ,_ Nfoanlnsuel)l;

            | |                      ^  ^

/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(In file included from ts2/s2builderutil_s2point_vector_layer.cch:i18s:
)In file included from )../src/s2/s2builderutil_s2point_vector_layer.h,: 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116\:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                                                   ^23
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/container/internal/common.h::19932::59::  warning: note: 'diagnose_if' is a clang extension [-Wgcc-compat]macro 'ABSL_INTERNAL_IF_false' defined here

     32199 |  | # d e f iAnBeS LA_BISNLT_EIRNNTAELR_NNAELE_DI_FM_IfNa_lSsIeZ(Ei(fb_usfafteirs,f ikeFda,s t.T.o.B)u f_f_eVrAS_iAzReG)S;_
_      
|           ^| 
        ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_sIn file included from is2/s2builderutil_lax_polyline_layer.ccz:e18(:
OIn file included from b../src/s2/s2builderutil_lax_polyline_layer.hj:,27 :
0In file included from )../src/s2/mutable_s2shape_index.h :<30 :
NIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :\67
:
      | /usr/local/clang/include/absl/container/internal/btree_container.h                 ^:
621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   AIn file included from Bs2/s2builderutil_s2point_vector_layer.ccS:L18_:
IIn file included from N../src/s2/s2builderutil_s2point_vector_layer.hT:E27R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_30X:
(In file included from t/usr/local/clang/include/absl/container/btree_map.hr:y66_:
eIn file included from m/usr/local/clang/include/absl/container/internal/btree.hp:l70a:
cIn file included from e/usr/local/clang/include/absl/container/internal/layout.h,: 198t:
rIn file included from y/usr/local/clang/include/absl/strings/str_cat.h_:e116m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:c23e:
_/usr/local/clang/include/absl/strings/numbers.hi:m200p:l7,:  &warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 tr  u200e | )c;h
a      r| *                                                         ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l596_:n9o:n nnote: umacro 'ABSL_INTERNAL_X' defined herel
l F  a596s | t#IdnetfTionBeu fAfBeSrL(_uIiNnTtE3R2N_AtL _nX,( Fcuhnacr,*  Caablslle_en,o nKnQuulall ,o uKtV_aslture),
       .| .      ^.
) /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l        ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(ui/usr/local/clang/include/absl/container/internal/btree_container.hn:t6213:23_:t  warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
 ch  a621r | *   aAbBsSlL__nIoNnTnEuRlNlA Lo_uXt(_tsrtyr_)e
m      p| l                                                     ^a
ce/usr/local/clang/include/absl/base/nullability.h,: 241t:r22y:_ enote: mexpanded from macro 'absl_nonnull'p
la  c241 | e#_diemfpiln,e  &a&b,s lt_rnuoen)n;u
l      l|    ^_
No/usr/local/clang/include/absl/container/internal/btree_container.hn:n611u:l52l:
       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),In file included from  s2/s2builderutil_s2point_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h\:
198      :
| In file included from                                                    ^/usr/local/clang/include/absl/strings/str_cat.h
:116:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h31::239:
: /usr/local/clang/include/absl/strings/numbers.h:note: 201macro 'ABSL_INTERNAL_IF_true' defined here:
5:    warning: 31'diagnose_if' is a clang extension [-Wgcc-compat] | 
#de  f201i | n e   A BASBLS_LI_NITNETRENRANLA_LI_FN_EtErDu_eM(IiNf__SsIaZtEi(sofuite_ds,t r.,. .k)F aisft_TsoaBtuifsffeireSdi
z      e| )        ^;

      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
In file included from s2/s2builderutil_lax_polyline_layer.cc  :25118 | :
 In file included from  ../src/s2/s2builderutil_lax_polyline_layer.h_:_27a:
tIn file included from t../src/s2/mutable_s2shape_index.hr:i30b:
uIn file included from t/usr/local/clang/include/absl/container/btree_map.he:_67_:
(/usr/local/clang/include/absl/container/internal/btree_container.h(:d621i:a3g:n owarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
_if(_  _621b | u i lAtBiSnL__oIbNjTeEcRtN_AsLi_zXe((tOrbyj_,e m0p)l a<c eN,,  t\r
y      _| e                 ^m
place_impl, &In file included from &s2/s2builderutil_s2point_vector_layer.cc,: 18t:
rIn file included from u../src/s2/s2builderutil_s2point_vector_layer.he:)27;:

In file included from       ../src/s2/mutable_s2shape_index.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/container/internal/btree_container.h66::
611In file included from :/usr/local/clang/include/absl/container/internal/btree.h47::70 :
In file included from note: /usr/local/clang/include/absl/container/internal/layout.hexpanded from macro 'ABSL_INTERNAL_X':
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116611:
 | In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 202 : 7 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IN  T202E | RcNhAaLr_*A TaTbRsIlB_UnToEn_nCuAlPlT UFRaEsDt_IBnYt(TtohBiusf)f)e,r ( i n t 6 4 _ t   i ,   c h a r *   a b s l _ n o n\n
u      l| l                                              ^~~~ 
buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define a/usr/local/clang/include/absl/container/internal/btree_container.hb:s622l:_3n:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll _  N622o | n n uAlBlS
L      _| I                     ^N
TERNAL_X(try_emplace, try_emplace_hint_impl, conIn file included from ss2/s2builderutil_s2point_vector_layer.cct: 18&:
,In file included from  ../src/s2/s2builderutil_s2point_vector_layer.hf:a27l:
sIn file included from e../src/s2/mutable_s2shape_index.h,:
30      :
| In file included from   ^/usr/local/clang/include/absl/container/btree_map.h
:66:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h611::7052:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.h:note: 198expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
  In file included from 611/usr/local/clang/include/absl/strings/internal/stringify_sink.h | : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 203 : 5 :   warning: A'diagnose_if' is a clang extension [-Wgcc-compat]B
SL_  I203N | T E R N AALB_SALT_TIRNITBEURTNEA_LC_ANPETEUDR_EMDI_NB_YS(ItZhEi(sb)u)f,f e r ,   k F a s t T o B u f f e r S i z e ) ; 
        | \    ^

      |                                                    ^/usr/local/clang/include/absl/base/macros.h
:251:/usr/local/clang/include/absl/container/internal/common.h18::32 :9note: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
note: macro 'ABSL_INTERNAL_IF_false' defined here
  251 |     32  | _#_daetftirnieb uAtBeS_L__(I(NdTiEaRgNnAoLs_eI_Fi_ff(a_l_sbeu(iilft_isna_toibsjfeicetd_,s i.z.e.()O b_j_,V A0_)A R<G SN_,_ 
\      
|               ^| 
                 ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2builderutil_lax_polyline_layer.ccu:l18l:

In file included from       ../src/s2/s2builderutil_lax_polyline_layer.h| :                     ^27
:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2builderutil_s2point_vector_layer.cc624::183:
:In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h:warning: 27:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h:66:
624In file included from  | /usr/local/clang/include/absl/container/internal/btree.h : 70A:
BIn file included from S/usr/local/clang/include/absl/container/internal/layout.hL:_198I:
NIn file included from T/usr/local/clang/include/absl/strings/str_cat.hE:R116N:
AIn file included from L/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:X23(:
t/usr/local/clang/include/absl/strings/numbers.hr:y204_:e54m:p lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
e, t  r204y | _cehmaprl*a caeb_shli_nnto_ninmuplll,  FcaosntsItn t&T,o Bturfufee,r
(      u| i  ^n
t6/usr/local/clang/include/absl/container/internal/btree_container.h4:_611t: 52i:,  note: cexpanded from macro 'ABSL_INTERNAL_X'h
ar*   611a | b s l _ n o n n u l lA BbSuLf_fIeNrT)E
R      N| A                                                     ^L
_A/usr/local/clang/include/absl/base/nullability.hT:T241R:I22B:U Tnote: Eexpanded from macro 'absl_nonnull'_
CA  P241T | U#RdEeDf_iBnYe( tahbissl)_)n,o n n u l l   _ N o n n u l l 
        |                       ^ 
       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERIn file included from Ns2/s2builderutil_s2point_vector_layer.ccA:L18_:
IIn file included from F../src/s2/s2builderutil_s2point_vector_layer.h_:t27r:
uIn file included from e../src/s2/mutable_s2shape_index.h(:i30f:
_In file included from s/usr/local/clang/include/absl/container/btree_map.ha:t66i:
sIn file included from f/usr/local/clang/include/absl/container/internal/btree.hi:e70d:
,In file included from  /usr/local/clang/include/absl/container/internal/layout.h.:.198.:
)In file included from  /usr/local/clang/include/absl/strings/str_cat.hi:f116_:
sIn file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:i23s:
f/usr/local/clang/include/absl/strings/numbers.hi:e205d:
5      :|          ^
warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSIn file included from Ls2/s2builderutil_lax_polyline_layer.cc_:I18N:
TIn file included from E../src/s2/s2builderutil_lax_polyline_layer.hR:N27A:
LIn file included from _../src/s2/mutable_s2shape_index.hN:E30E:
DIn file included from _/usr/local/clang/include/absl/container/btree_map.hM:I67N:
_/usr/local/clang/include/absl/container/internal/btree_container.hS:I624Z:E3(:b uwarning: f'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
er, k  F624a | s t TAoBBSuLf_fIeNrTSEiRzNeA)L;_
X      (| t    ^r
y_/usr/local/clang/include/absl/base/macros.he:m251p:l18a:c enote: ,expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
try  _251e | m p l_a_caet_thriinbtu_tiem_p_l(,( dcioangsnto s&e,_ itfr(u_e_,b
u      i| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
in_  o625b | j e c t _ s i z e ( O b j ,   0 )   <c oNn,s t\_
i      t| e                 ^r
ator(hint) AIn file included from Bs2/s2builderutil_s2point_vector_layer.ccS:L18_:
IIn file included from N../src/s2/s2builderutil_s2point_vector_layer.hT:E27R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_30C:
OIn file included from M/usr/local/clang/include/absl/container/btree_map.hM:A66):
;In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 611/usr/local/clang/include/absl/strings/str_cat.h::47116::
 In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :expanded from macro 'ABSL_INTERNAL_X'23
:
/usr/local/clang/include/absl/strings/numbers.h:206  :6117 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      206  |  cAhBaSrL*_ IaNbTsElR_NnAoLn_nAuTlTlR IFBaUsTtEI_nCtATPoTBUuRfEfDe_rB(Yi(ntth1i2s8) )i,,   c h a r *   a b s l _ n o n n u l l   b u f f e r\)

            | |                                               ^~~~      ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull/usr/local/clang/include/absl/container/internal/btree_container.h :_626N:o3n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l

      |                      ^
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplaIn file included from cs2/s2builderutil_s2point_vector_layer.cce:_18h:
iIn file included from n../src/s2/s2builderutil_s2point_vector_layer.ht:_27i:
mIn file included from p../src/s2/mutable_s2shape_index.hl:,30 :
&In file included from &/usr/local/clang/include/absl/container/btree_map.h,: 66f:
aIn file included from l/usr/local/clang/include/absl/container/internal/btree.hs:e70,:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :  ^198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/container/internal/btree_container.h::116611:
:In file included from 52/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23:
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'ABSL_INTERNAL_X':
207:5:   611warning:  | 'diagnose_if' is a clang extension [-Wgcc-compat] 
      207  |         AABBSSLL__IINNTTEERRNNAALL__ANTETERDI_BMUITNE__SCIAZPET(UbRuEfDf_eBrY,( tkhFiass)t)T,o B u f f e r 1 2 8 S i z e ) ; 
        |      ^ 
  /usr/local/clang/include/absl/base/macros.h : 251 : 18\:
       | note:                                                    ^expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'

/usr/local/clang/include/absl/container/internal/common.h:  32251: | 9 :  _note: _macro 'ABSL_INTERNAL_IF_false' defined herea
ttr   i32b | u#tdee_f_i(n(ed iAaBgSnLo_sIeN_TiEfR(N_A_Lb_uIiFl_tfianl_soeb(jiefc_ts_astiizsef(iOebdj,,  .0.). )<  _N_,V A\_
A      R| G                 ^S
__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.hIn file included from :s2/s2builderutil_s2point_vector_layer.cc30::
18In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s2builderutil_s2point_vector_layer.h67::
27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/mutable_s2shape_index.h628::303:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:warning: 66:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h628: | 198 :
 In file included from A/usr/local/clang/include/absl/strings/str_cat.hB:S116L:
_In file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:T23E:
R/usr/local/clang/include/absl/strings/numbers.hN:A208L:_53X:( twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
_em  p208l | acchea,r *t rayb_selm_pnloancneu_lhli nFta_sitmIpnlt,T o&B&u,f fterru(eu,i
n      t| 1  ^2
8 /usr/local/clang/include/absl/container/internal/btree_container.hi:,611 :c52h:a rnote: *expanded from macro 'ABSL_INTERNAL_X' 
abs  l611_ | n o n n u l l   b u fAfBeSrL)_
I      N| T                                                    ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L241_:A22T:T Rnote: Iexpanded from macro 'absl_nonnull'B
UT  E241_ | C#AdPeTfUiRnEeD _aBbYs(lt_hniosn)n)u,l l   _ N o n n u l l 
        |                       ^ 
           \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_In file included from Is2/s2builderutil_s2point_vector_layer.ccN:T18E:
RIn file included from N../src/s2/s2builderutil_s2point_vector_layer.hA:L27_:
IIn file included from F../src/s2/mutable_s2shape_index.h_:t30r:
uIn file included from e/usr/local/clang/include/absl/container/btree_map.h(:i66f:
_In file included from s/usr/local/clang/include/absl/container/internal/btree.ha:t70i:
sIn file included from f/usr/local/clang/include/absl/container/internal/layout.hi:e198d:
,In file included from  /usr/local/clang/include/absl/strings/str_cat.h.:.116.:
)In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hi:f23_:
s/usr/local/clang/include/absl/strings/numbers.ha:t209i:s5f:i ewarning: d'diagnose_if' is a clang extension [-Wgcc-compat]

      |         ^
  209 |     ABSL_INIn file included from Ts2/s2builderutil_lax_polyline_layer.ccE:R18N:
AIn file included from L../src/s2/s2builderutil_lax_polyline_layer.h_:N27E:
EIn file included from D../src/s2/mutable_s2shape_index.h_:M30I:
NIn file included from _/usr/local/clang/include/absl/container/btree_map.hS:I67Z:
E/usr/local/clang/include/absl/container/internal/btree_container.h(:b628u:f3f:e rwarning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
kFast  T628o | B u fAfBeSrL1_2I8NSTiEzReN)A;L
_      X| (    ^t
ry/usr/local/clang/include/absl/base/macros.h_:e251m:p18l:a cnote: eexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE',
 tr  y251_ | e m p_l_aactet_rhiibnutt_ei_m_p(l(,d i&a&g,n otsreu_ei,f
(      _| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
uil  t629i | n _ o b j e c t _ s i z e ( O b j ,  c0o)n s<t _Ni,t e\r
a      t| o                 ^r
(hint) ABSL_INTERIn file included from Ns2/s2builderutil_s2point_vector_layer.ccA:L18_:
CIn file included from O../src/s2/s2builderutil_s2point_vector_layer.hM:M27A:
)In file included from ;../src/s2/mutable_s2shape_index.h
:      30| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h611::7047:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.h:note: 198expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
  In file included from 611/usr/local/clang/include/absl/strings/internal/stringify_sink.h | : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 215 : 7 :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_  I215N | TcEhRaNrA*L _aAbTsTlR_InBoUnTnEu_lClA PFTaUsRtEIDn_tBTYo(Btuhfifse)r)(,i n t _ t y p e   i , 
        |        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
\
        241|  |                                               ^~~~#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:638:In file included from 63s2/s2builderutil_s2point_vector_layer.cc:: 18:
warning: In file included from ../src/s2/s2builderutil_s2point_vector_layer.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
27:
In file included from ../src/s2/mutable_s2shape_index.h:30  :
638In file included from  | /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h :c70o:
nIn file included from s/usr/local/clang/include/absl/container/internal/layout.ht: 198k:
eIn file included from y/usr/local/clang/include/absl/strings/str_cat.h_:a116r:
gIn file included from </usr/local/clang/include/absl/strings/internal/stringify_sink.hK:>23 :
&/usr/local/clang/include/absl/strings/numbers.hk: 217A:B5S:L _warning: I'diagnose_if' is a clang extension [-Wgcc-compat]N
TER  N217A | L _ A T TARBISBLU_TIEN_TCEARPNTAULR_ENDE_EBDY_(MtIhNi_sS)I)Z
E      (| 
                                                              ^~~~      
|     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit HeIn file included from xs2/s2builderutil_lax_polyline_layer.cc(:P18o:
iIn file included from n../src/s2/s2builderutil_lax_polyline_layer.ht:e27e:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b33s:
lIn file included from _../src/s2/base/commandlineflags.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/flags/flag.hb:l40:
e/usr/local/clang/include/absl/flags/commandlineflag.h :v193,: 27P:ad Spec spec = absl::kNoPawarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |                         ^
  193 | /usr/local/clang/include/absl/base/nullability.h : 257v:i23r:t unote: aexpanded from macro 'absl_nullable'l
 v  o257i | d# dReefaidn(ev oaibds*l _anbuslll_anbolnen u_lNlu ldlsatb)l ec
o      n| s                      ^t
 = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
In file included from /usr/local/clang/include/absl/base/call_once.hs2/s2builderutil_s2point_vector_layer.cc::5318::
22In file included from :../src/s2/s2builderutil_s2point_vector_layer.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
   In file included from 53/usr/local/clang/include/absl/container/btree_map.h | : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from :/usr/local/clang/include/absl/container/internal/layout.h::o198n:
c/usr/local/clang/include/absl/strings/str_cat.he:_398f:l24a:g *warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_  n398o | n n uAlllp hfalNaugm)(;c
o      n| s                     ^t
 c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#adbelfei nce_ satbrs l _/n/o nNnOuLlIlN T_(Nrounnntuilmle
/      e| x                     ^p
licit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2builderutil_s2point_vector_layer.ccu:l18l:

In file included from       ../src/s2/s2builderutil_s2point_vector_layer.h| :                     ^27
:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.hIn file included from :s2/s2builderutil_lax_polyline_layer.cc70::
18In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :../src/s2/s2builderutil_lax_polyline_layer.h198::
27:
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :../src/s2/mutable_s2shape_index.h431::3315:
:In file included from  ../src/s2/base/commandlineflags.h:warning: 21:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h  :43130 | :
 /usr/local/clang/include/absl/base/call_once.h :c97o:n18s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar   *97  | a b s l _ n uolnlcaeb_lfel adga*t aa(b)s lc_onnosntn u{l lr eftluargn) ;p
i      e| c                 ^e
_./usr/local/clang/include/absl/base/nullability.hd:a241t:a22(:) ;note:  expanded from macro 'absl_nonnull'}

        | 241              ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f257i:n23e:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli n_eN oanbnsull_ln
u      l| l                     ^a
ble _Nullable
      |                       ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* In file included from as2/s2builderutil_s2point_vector_layer.ccb:s18l:
_In file included from n../src/s2/s2builderutil_s2point_vector_layer.ho:n27n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30r:
eIn file included from p/usr/local/clang/include/absl/container/btree_map.h): 66{:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                ^73
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::82241:
:In file included from 22/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:: 23:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/crc/crc32c.h
:32:
  241/usr/local/clang/include/absl/strings/str_format.h | :#115d:e52f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _115n | o n n u l l  c_oNnosntn usltlr
_      f| o                     ^r
mat_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_lax_polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_lax_polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const In file included from cs2/s2builderutil_s2point_vector_layer.cch:a18r:
*In file included from  ../src/s2/s2builderutil_s2point_vector_layer.ha:b27s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:o30n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66 :
SIn file included from t/usr/local/clang/include/absl/container/internal/btree.ha:t73u:
sIn file included from M/usr/local/clang/include/absl/strings/cord.he:s82s:
aIn file included from g/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:A23s:
CIn file included from S/usr/local/clang/include/absl/crc/crc32c.ht:r32(:

      /usr/local/clang/include/absl/strings/str_format.h| :            ^155
:36: /usr/local/clang/include/absl/base/nullability.h:warning: 241:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
155 |    241  | e#xdpelfiicniet  aFbosrlm_antoCnonuunltlC a_pNtounrneu(liln
t      *|                       ^a
bsl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_s2polyline_layer.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_s2polyline_layer.hl:l25
:
      In file included from | ../src/s2/base/logging.h                     ^:
22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: In file included from warning: s2/s2builderutil_s2point_vector_layer.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:  27133:
 | In file included from i../src/s2/mutable_s2shape_index.hn:t30 :
RIn file included from e/usr/local/clang/include/absl/container/btree_map.hg:i66s:
tIn file included from e/usr/local/clang/include/absl/container/internal/btree.hr:A73n:
dIn file included from I/usr/local/clang/include/absl/strings/cord.hn:i86t:
i/usr/local/clang/include/absl/strings/cord_analysis.ha:l56i:z56e:( Vwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
gSit   e56* |  saibzsel__tn oGnentuElslt ivm)a;t
e      d| F                                    ^a
irSh/usr/local/clang/include/absl/base/nullability.ha:r241e:M22e:m onote: rexpanded from macro 'absl_nonnull'y
Us  a241g | e#(dceofnisnte  CaobrsdlR_enpo*n naublsll __nNoonnnnuullll 
r      e| p                     ^)
;
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2builderutil_lax_polyline_layer.cc::6618:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2builderutil_lax_polyline_layer.h::7027:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h../src/s2/mutable_s2shape_index.h::19844:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2pointutil.h::11627:
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:../src/s2/util/math/matrix3x3.h23::
276:/usr/local/clang/include/absl/strings/numbers.h5::330 :41warning: : type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  276 |    330  |     S 2 _ C H E C K _ N E ( d e t ,   V T y p e ( 0 ) )   < <i n"t _Ctaynp'et*  ianbvselr_sneo.n nDueltle romuitn)a n{t
       =|                                          ^0
.";/usr/local/clang/include/absl/base/nullability.h
:      241| :    ^22
: note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
37:21  :241  | note: #expanded from macro 'S2_CHECK_NE'd
ef   i37n | e# daebfsiln_en oSn2n_uClHlE C_KN_oNnEn uClHlE
C      K| _                     ^N
E
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMIn file included from Ps2/s2builderutil_s2polygon_layer.ccL:(18(:
vIn file included from a../src/s2/s2builderutil_s2polygon_layer.hl:140):
,In file included from  /usr/local/clang/include/absl/container/btree_map.h#:v66a:
lIn file included from 1/usr/local/clang/include/absl/container/internal/btree.h,: 70(:
vIn file included from a/usr/local/clang/include/absl/container/internal/layout.hl:2198):
,In file included from  /usr/local/clang/include/absl/strings/str_cat.h#:v116a:
lIn file included from 2/usr/local/clang/include/absl/strings/internal/stringify_sink.h):
23      :
| /usr/local/clang/include/absl/strings/numbers.h  ^:
335:52/usr/local/clang/include/absl/log/internal/check_impl.h:: 51:warning: 3:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
  335 |     51  |      A B S L _ L O G _ I N T E R N A L _ C H E C K _ O P ( C h e c k _aNbEs,l :!:=i,n tv1a2l81*,  avbasll1__ntoenxntu,l lv aolu2t,)  v{a
l      2| _                                                   ^t
ex/usr/local/clang/include/absl/base/nullability.ht:)241
:      22| :  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:68:  22241: |  #note: dexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'e
fin   e68  | a b swlh_inloen n(ucloln s_tN ocnhnaurl*l 
a      b| s                     ^l
_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2builderutil_s2polygon_layer.cc#:d18e:
fIn file included from i../src/s2/s2builderutil_s2polygon_layer.hn:e40 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l70a:
bIn file included from l/usr/local/clang/include/absl/container/internal/layout.he: 198_:
NIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116a:
bIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.he:
23      :
| /usr/local/clang/include/absl/strings/numbers.h                      ^:
340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_noIn file included from ns2/s2builderutil_lax_polyline_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_lax_polyline_layer.ho:u27t:
)In file included from  ../src/s2/mutable_s2shape_index.h{:
44      :
| In file included from                                                     ^../src/s2/s2pointutil.h
:27:
/usr/local/clang/include/absl/base/nullability.h:../src/s2/util/math/matrix3x3.h241::27622::5 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241../src/s2/base/logging.h | :#37d:e21f:i nnote: eexpanded from macro 'S2_CHECK_NE' 
abs   l37_ | n#odnenfuilnle  _SN2o_nCnHuElClK
_      N| E                     ^ 
CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1In file included from ,s2/s2builderutil_s2polygon_layer.cc :(18v:
aIn file included from l../src/s2/s2builderutil_s2polygon_layer.h2:)40,:
 In file included from #/usr/local/clang/include/absl/container/btree_map.hv:a66l:
2In file included from )/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
  ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 51/usr/local/clang/include/absl/strings/str_cat.h::3116::
 In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'23
:
/usr/local/clang/include/absl/strings/numbers.h:346   :5144 | :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_L  O346G | _ I N T E R N A L _ C H E C K _ O P ( C h e c k _ N E ,   ! = ,   vianlt1_,t yvpael*1 _atbesxlt_,n ovnanlu2l,l  voault2)_ t{e
x      t| )                                           ^

      |   ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/log/internal/check_op.h22::75 :61note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'  
241 | #d   e75f | i n eA BaSbLs_lL_OnGo_nInNuTlElR N_ANLo_nCnHuElClK
(      :| :                     ^a
bsl::implicit_cast<const char* absl_nonnull>( In file included from  s2/s2builderutil_s2polygon_layer.cc : 18 :
\In file included from 
../src/s2/s2builderutil_s2polygon_layer.h      :| 40                                                            ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/base/nullability.h66::
241In file included from :/usr/local/clang/include/absl/container/internal/btree.h22::70 :
In file included from note: /usr/local/clang/include/absl/container/internal/layout.hexpanded from macro 'absl_nonnull':
198:
In file included from   /usr/local/clang/include/absl/strings/str_cat.h241: | 116#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hf:i23n:
e/usr/local/clang/include/absl/strings/numbers.h :a351b:s55l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   351_ | N o n n u l l 
        |                       ^ 
                             absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIteIn file included from rs2/s2builderutil_s2polygon_layer.cca:t18o:
rIn file included from *../src/s2/s2builderutil_s2polygon_layer.h :a40b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l73l:
 In file included from i/usr/local/clang/include/absl/strings/cord.ht:,82 :
sIn file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hz:e23_:
tIn file included from  /usr/local/clang/include/absl/crc/crc32c.hn:_32b:
yIn file included from t/usr/local/clang/include/absl/strings/str_format.he:s84):
 In file included from {/usr/local/clang/include/absl/strings/internal/str_format/bind.h
:      29| :
                                        ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227/usr/local/clang/include/absl/base/nullability.h::11241:: 22:warning:  'enable_if' is a clang extension [-Wgcc-compat]note: 
expanded from macro 'absl_nonnull'
  241   | 227# | d e f i n e   a b s le_nnaobnlneu_lilf (_sNtorn_nfuolrlm
a      t| _                     ^i
nternal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord_analysis.h::52432::347::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  524    | 32  |  sAiBzSeL__tI NGTeEtRENsAtLi_mXa(tiendsMeermto_royrU_saasgsei(gcno,n sitn sCeorrtd_Roerp_*a sasbisgln__niomnpnlu,l lc ornespt) ;&
,       | c                                              ^o
nst/usr/local/clang/include/absl/base/nullability.h :&241,:
22      :|    ^
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h:509  :24152 | :# dnote: eexpanded from macro 'ABSL_INTERNAL_X'f
ine   509a | b s l _ n o n n u l lA B_SNLo_nInNuTlElR
N      A| L                     ^_
ATTRIBUTE_CAPTURED_BY(this))In file included from ,s2/s2builderutil_s2polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polygon_layer.h : 40 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 86 :
 /usr/local/clang/include/absl/strings/cord_analysis.h\:
50      :| 49                                                   ^:
 warning: /usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
32:9:    note: 50macro 'ABSL_INTERNAL_IF_false' defined here | 
siz   e32_ | t# dGeeftiMnoer eAPBrSeLc_iIsNeTMEeRmNoArLy_UIsFa_gfea(lcsoen(sitf _CsoartdiRsefpi*e da,b s.l._.n)o n_n_uVlAl_ ArReGpS)_;_

            | |                                                 ^        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2builderutil_s2point_vector_layer.cc241: | 18#:
dIn file included from e../src/s2/s2builderutil_s2point_vector_layer.hf:i27n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l524l: 3_:N owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull  
524       | |                       ^ 
ABSL_INTERNAL_X(iIn file included from ns2/s2builderutil_s2polygon_layer.ccs:e18r:
tIn file included from _../src/s2/s2builderutil_s2polygon_layer.ho:r40_:
aIn file included from s/usr/local/clang/include/absl/container/btree_map.hs:i66g:
nIn file included from ,/usr/local/clang/include/absl/container/internal/btree.h :i73n:
sIn file included from e/usr/local/clang/include/absl/strings/cord.hr:t86_:
o/usr/local/clang/include/absl/strings/cord_analysis.hr:_56a:s56s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
impl   ,56  | csoinzset_ t& ,G ectoEnsstti m&a,t
e      d| F  ^a
ir/usr/local/clang/include/absl/container/internal/btree_container.hS:h511a:r52e:M enote: mexpanded from macro 'ABSL_INTERNAL_X'o
ryU  s511a | g e ( c o n s t   C oArBdSRLe_pI*N TaEbRsNlA_Ln_oAnTnTuRlIlB UrTeEp_)C;A
P      T| U                                                       ^R
ED/usr/local/clang/include/absl/base/nullability.h_:B241Y:(22t:h inote: sexpanded from macro 'absl_nonnull')
))   241  |  # d e f i n e   a b s l _ n o n n u l l   _\N
o      n| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.h
:      31| :                     ^9
: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w/usr/local/clang/include/absl/container/internal/btree_container.h,:
577      :| 3                                                               ^:
 warning: /usr/local/clang/include/absl/base/nullability.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
:22: note:   expanded from macro 'absl_nonnull'577
 |     241A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(oinnnsuelrlt __oNro_nansuslilg
n      ,|                       ^i
nsert_or_assign_hint_impl,In file included from  s2/s2builderutil_s2polygon_layer.cc&:&18,:
 In file included from c../src/s2/s2builderutil_s2polygon_layer.ho:n40s:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.h&:,66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h  ^:
73:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::50994::
52In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31note: :
expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/synchronization/mutex.h
:556:38:   509 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       556  |     AvBoSiLd_ ILNoTcEkRSNlAoLw_LAoToTpR(ISByUnTcEh_WCaAiPtTPUaRrEaDm_sB*Y (atbhsils_)n)o,n n ul l   w a i t p ,   i n t   f l a g s ) ; 
       \| 
                                     ^      
|                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/container/internal/common.h:: 32:note: 9expanded from macro 'absl_nonnull':
 note:   macro 'ABSL_INTERNAL_IF_false' defined here241
 | #d   e32f | i#ndee faibnsel _AnBoSnLn_uIlNlT E_RNNoAnLn_uIlFl_
f      a| l                     ^s
e(if_satisfied, ...) In file included from _s2/s2builderutil_s2polygon_layer.cc_:V18A:
_In file included from A../src/s2/s2builderutil_s2polygon_layer.hR:G40S:
_In file included from _/usr/local/clang/include/absl/container/btree_map.h
:      66| :
        ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2builderutil_s2point_vector_layer.cc::55818::
35In file included from :../src/s2/s2builderutil_s2point_vector_layer.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
  In file included from 558/usr/local/clang/include/absl/container/btree_map.h | : 67 :
b/usr/local/clang/include/absl/container/internal/btree_container.ho:o577l: 3L:o cwarning: kpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]S
low  W577i | t h DAeBaSdLl_iInNeT(EMRuNHAoLw_ Xa(bisnls_enrotn_nourl_la shsoiwg,n
,       | i                                  ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241_ | h#idnetf_iinmep la,b s&l&_,n ocnonnusltl  &_,N
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                     ^52
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 | In file included from  s2/s2builderutil_s2polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polygon_layer.h : 40 :
 In file included from A/usr/local/clang/include/absl/container/btree_map.hB:S66L:
_In file included from I/usr/local/clang/include/absl/container/internal/btree.hN:T73E:
RIn file included from N/usr/local/clang/include/absl/strings/cord.hA:L94_:
AIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hT:R31I:
B/usr/local/clang/include/absl/synchronization/mutex.hU:T559E:_46C:A Pwarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]U
RED  _559B | Y ( t h i s ) ) )                                        c o n s t\ 
C      o| n                                                   ^d
it/usr/local/clang/include/absl/container/internal/common.hi:o32n:*9 :a bnote: smacro 'ABSL_INTERNAL_IF_false' defined herel
_nu   l32l | a#bdleef icnoen dA,B
S      L| _                                             ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R257N:A23L:_ Inote: Fexpanded from macro 'absl_nullable'_
fa  l257s | e#(dieff_isnaet iasbfsile_dn,u l.l.a.b)l e_ __VNAu_lAlRaGbSl_e_

            | |                       ^        ^

In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2builderutil_s2point_vector_layer.ccl:l18
:
      In file included from | ../src/s2/s2builderutil_s2point_vector_layer.h                     ^:
27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2builderutil_s2polygon_layer.cc::57918::
3In file included from :../src/s2/s2builderutil_s2polygon_layer.h :40warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:  73579:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h :A94B:
SIn file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:I31N:
T/usr/local/clang/include/absl/synchronization/mutex.hE:R562N:A58L:_ Xwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nse  r562t | _or _ avsosiidg nL,o ciknSsleorwt(_MourH_oaws saibgsnl__hnionntn_uilmlp lh,o w&,& ,c ocnosnts tC o&n,d
i      t| i  ^o
n*/usr/local/clang/include/absl/container/internal/btree_container.h :a509b:s52l:_ nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
lab  l509e |   c o n d , 
        |                                                           ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L257_:I23N:T Enote: Rexpanded from macro 'absl_nullable'N
AL  _257A | T#TdReIfBiUnTeE _aCbAsPlT_UnRuElDl_aBbYl(et h_iNsu)l)l,a b l e 
        |                        ^ 
                \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32In file included from :s2/s2builderutil_s2polygon_layer.cc9::18 :
In file included from note: ../src/s2/s2builderutil_s2polygon_layer.hmacro 'ABSL_INTERNAL_IF_false' defined here:
40:
In file included from /usr/local/clang/include/absl/container/btree_map.h   :3266 | :
#In file included from d/usr/local/clang/include/absl/container/internal/btree.he:f73i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :A94B:
SIn file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:I31N:
T/usr/local/clang/include/absl/synchronization/mutex.hE:R565N:A36L:_ Iwarning: Ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
fals  e565( | i f _vsoaitdi sUfnileodc,k S.l.o.w)( S_y_nVcAh_WAaRiGtSP_a_r
a      m| s        ^*
 absl_nuIn file included from ls2/s2builderutil_s2point_vector_layer.ccl:a18b:
lIn file included from e../src/s2/s2builderutil_s2point_vector_layer.h :w27a:
iIn file included from t../src/s2/mutable_s2shape_index.hp:)30 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L67_:
A/usr/local/clang/include/absl/container/internal/btree_container.hT:T579R:I3B:U Twarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
COL  D579; | 
        | A                                   ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I257N:T23E:R Nnote: Aexpanded from macro 'absl_nullable'L
_X  (257i | n#sdeerfti_noer _aabsssli_gnnu,l lianbsleer t__Nourl_laasbslieg
n      _| h                      ^i
nt_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INIn file included from Ts2/s2builderutil_s2polygon_layer.ccE:R18N:
AIn file included from L../src/s2/s2builderutil_s2polygon_layer.h_:A40T:
TIn file included from R/usr/local/clang/include/absl/container/btree_map.hI:B66U:
TIn file included from E/usr/local/clang/include/absl/container/internal/btree.h_:C73A:
PIn file included from T/usr/local/clang/include/absl/strings/cord.hU:R94E:
DIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hB:Y31(:
t/usr/local/clang/include/absl/synchronization/mutex.hh:i576s:)49):)  warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      576 |      v o i d   T r y R e m o v e (\b
a      s| e                                                   ^_
in/usr/local/clang/include/absl/container/internal/common.ht:e31r:n9a:l :note: :macro 'ABSL_INTERNAL_IF_true' defined hereP
erT   h31r | e#addeSfyinnceh *A BaSbLs_lI_NnToEnRnNuAlLl_ IsF)_;t
r      u| e                                                ^(
if_sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: ,expanded from macro 'absl_nonnull' 
..  .241) |  #idfe_fsiantei safbiseld_
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2builderutil_s2polygon_layer.cc579::183:
:In file included from  ../src/s2/s2builderutil_s2polygon_layer.h:warning: 40:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73  :
579In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94A:
BIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.hL:_31I:
N/usr/local/clang/include/absl/synchronization/mutex.hT:E578R:N45A:L _warning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
ins  e578r | t _ ovro_iads sBilgonc,k (ibnasseer_ti_notre_ransasli:g:nP_ehriTnhtr_eiamdpSly,n c&h&*,  acbosnls_tn o&n,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
s);  
580       | |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #fdaelfsien,e  tarbusel,_ ncoonnnsutl_li t_eNroantnourl(lh
i      n| t                     ^)
 ABSL_INTERNAL_In file included from Cs2/s2builderutil_s2polygon_layer.ccO:M18M:
AIn file included from )../src/s2/s2builderutil_s2polygon_layer.h;:
40      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree.h::51173::
47In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h511: | 580 : 34 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     A580B | S L _bIaNsTeE_RiNnAtLe_rAnTaTlR:I:BPUeTrET_hCrAePaTdUSRyEnDc_hB*Y (atbhsils_)n)u)l l a b l e   W a k e u p ( 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23\:
       | note:                                               ^~~~expanded from macro 'absl_nullable'

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:581:3:   585 | warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
void   581T | r a nAsB(SMLu_HIoNwT EaRbNsAlL__nXo(ninnuslelr th_oowr)_;a s s/i/g nu,s eidn sfeorrt _Coorn_daVsasri-g>nM_uhtienxt _tirmapnls,f e&r&
,       | c                   ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241&:,22
:       | note:   ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/btree_container.h  :241509 | :#52d:e fnote: iexpanded from macro 'ABSL_INTERNAL_X'n
e a  b509s | l _ n o n n u l l   _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_ATTRIBUTE_CAPTURIn file included from Es2/s2builderutil_s2polygon_layer.ccD:_18B:
YIn file included from (../src/s2/s2builderutil_s2polygon_layer.ht:h40i:
sIn file included from )/usr/local/clang/include/absl/container/btree_map.h):,66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 586 : 43 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                    ^  
586 |  /usr/local/clang/include/absl/container/internal/common.h :v31o:i9d:  Fnote: emacro 'ABSL_INTERNAL_IF_true' defined herer
(ba   s31e | _#idnetfeirnnea lA:B:SPLe_rITNhTrEeRaNdASLy_nIcFh_*t raubes(li_fn_osnantuilslf
i      e| d                                          ^,
 ./usr/local/clang/include/absl/base/nullability.h.:.241): 22i:f _note: sexpanded from macro 'absl_nonnull'a
ti  s241f | i#edde
f      i| n        ^e
 absl_nonnull In file included from _s2/s2builderutil_s2point_vector_layer.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_s2point_vector_layer.hl:l27
:
      In file included from | ../src/s2/mutable_s2shape_index.h                     ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2builderutil_s2polygon_layer.cc:  18581:
 | In file included from  ../src/s2/s2builderutil_s2polygon_layer.h :A40B:
SIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:I66N:
TIn file included from E/usr/local/clang/include/absl/container/internal/btree.hR:N73A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hX:(94i:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.he:r31t:
_/usr/local/clang/include/absl/synchronization/mutex.ho:r590_:a40s:s iwarning: gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
, i  n590s | e r te_xoprl_iacsisti gMnu_theixn(tc_oinmsptl ,v o&l&a,t icloen sMtu t&e,x
*       | a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl_  n582u | l l a b l e   / * i g n or e d * / )  t{r}u
e      ,|                                         ^f
al/usr/local/clang/include/absl/base/nullability.hs:e257,: 23c:o nnote: sexpanded from macro 'absl_nullable't
_i  t257e | r#adteofri(nhei natb)s lA_BnSuLl_lIaNbTlEeR N_ANLu_lClOaMbMlAe)
;      
|                             ^| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: In file included from note: s2/s2builderutil_s2polygon_layer.ccmacro 'ABSL_INTERNAL_IF_true' defined here:
18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h   :3140 | :
#In file included from d/usr/local/clang/include/absl/container/btree_map.he:f66i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :A73B:
SIn file included from L/usr/local/clang/include/absl/strings/cord.h_:I94N:
TIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hR:N31A:
L/usr/local/clang/include/absl/synchronization/mutex.h_:I624F:_68t:r uwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes](
if_sa  t624i | s f ieexdp,l i.c.i.t)  Miuft_esxaLtoicskf(iMeudt
e      x| &        ^ 
mu ABSL_INTERNIn file included from As2/s2builderutil_s2point_vector_layer.ccL:_18A:
TIn file included from T../src/s2/s2builderutil_s2point_vector_layer.hR:I27B:
UIn file included from T../src/s2/mutable_s2shape_index.hE:_30C:
AIn file included from P/usr/local/clang/include/absl/container/btree_map.hT:U67R:
E/usr/local/clang/include/absl/container/internal/btree_container.hD:_583B:Y3(:t hwarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
))
      |                                                                    ^~~~  
583 |   ABSL_INTERNAL_X(insert_or_assign, insert/usr/local/clang/include/absl/synchronization/mutex.h_:o635r:_29a:s swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
n_hi  n635t | _ i mepxlp,l i&c&i,t  cMountsetx L&o,c
k      (| M  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
tex  *584  | a b s l _ n o n n u l l   m u )   A BtSrLu_eE,X CtLrUuSeI,V Ec_oLnOsCtK__iFtUeNrCaTtIoOrN((hmiun)t
)       | A                            ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_C  O241M | M#Ad)e;f
i      n| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_509n:o47n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 _N  o509n | n u l l 
        |                       ^ 
  ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))In file included from ,s2/s2builderutil_s2polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polygon_layer.h : 40 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from \/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                                              ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: /usr/local/clang/include/absl/container/internal/btree_container.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
583:3: warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]641
 |  /usr/local/clang/include/absl/container/internal/btree_container.h :e511x:p52l:i cnote: iexpanded from macro 'ABSL_INTERNAL_X't
 Mu  t511e | x L o c k ( M u t e xA&B SmLu_ IANBTSELR_NIANLT_EARTNTARLI_BAUTTTER_ICBAUPTTEU_RCEADP_TBUYR(EtDh_iBsY)()t)h i s ) , 
        |                                                                     ^~~~ 
               \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #de/usr/local/clang/include/absl/synchronization/mutex.hf:i649n:e29 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_INT  E649R | N A Le_xIpFl_itcriute (Miuft_esxaLtoicskf(iMeudt,e x.*. .a)b silf__nsoantniuslfli emdu
,       | c        ^o
nst ConditiIn file included from os2/s2builderutil_s2point_vector_layer.ccn:&18 :
cIn file included from o../src/s2/s2builderutil_s2point_vector_layer.hn:d27):

In file included from       ../src/s2/mutable_s2shape_index.h| :                            ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::67241:
:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 583:note: 3expanded from macro 'absl_nonnull':
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  241 | #d  e583f | i n eA BaSbLs_lI_NnToEnRnNuAlLl_ X_(Nionnsneurltl_
o      r| _                     ^a
ssign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu)/usr/local/clang/include/absl/container/internal/btree_container.h :A586B:S3L:_ Swarning: Hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
RED_  L586O | C K _AFBUSNLC_TIINOTNE(RmNuA)L
_      X| (                                  ^i
nse/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uhliln t__Niomnpnlu,l l&
&      ,|                       ^&
&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |         In file included from  s2/s2builderutil_s2polygon_layer.cc :A18B:
SIn file included from L../src/s2/s2builderutil_s2polygon_layer.h_:I40N:
TIn file included from E/usr/local/clang/include/absl/container/btree_map.hR:N66A:
LIn file included from _/usr/local/clang/include/absl/container/internal/btree.hA:T73T:
RIn file included from I/usr/local/clang/include/absl/strings/cord.hB:U94T:
EIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hC:A31P:
T/usr/local/clang/include/absl/synchronization/mutex.hU:R681E:D74_:B Ywarning: ('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
his))  ,681  |      e x p l i c i t   R e a d e r M u t e x L\o
c      k| (                                                   ^M
ut/usr/local/clang/include/absl/container/internal/common.he:x32&: 9m:u  note: Amacro 'ABSL_INTERNAL_IF_false' defined hereB
SL_   I32N | T#EdReNfAiLn_eA TATBRSILB_UITNET_ECRANPATLU_RIEFD__fBaYl(steh(iisf)_,s
a      t| i                                                                         ^~~~s
fied, ...) __VA_ARGS__
      |         ^
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2builderutil_s2point_vector_layer.cc::68918::
35In file included from :../src/s2/s2builderutil_s2point_vector_layer.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h689: | 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.he:x586p:l3i:c iwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
Read  e586r | M u tAeBxSLLo_cIkN(TMEuRtNeAxL*_ Xa(bisnls_enrotn_nourl_la smsui,g nc,o nisnts eCrotn_doirt_iaosns&i gcno_nhdi)n
t      _| i                                  ^m
pl/usr/local/clang/include/absl/base/nullability.h,: 241&:&22,:  &note: &expanded from macro 'absl_nonnull',
 f  a241l | s#ed,e
f      i| n  ^e
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s511l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   _511N | o n n u l l 
        |                       ^ 
ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriIn file included from ts2/s2builderutil_s2point_vector_layer.cce:r18M:
uIn file included from t../src/s2/s2builderutil_s2point_vector_layer.he:x27L:
oIn file included from c../src/s2/mutable_s2shape_index.hk:(30M:
uIn file included from t/usr/local/clang/include/absl/container/btree_map.he:x67&:
 /usr/local/clang/include/absl/container/internal/btree_container.hm:u588 :A3B:S Lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
NTER  N588A | L _ AATBTSRLI_BIUNTTEE_RCNAAPLT_UXR(EiDn_sBeYr(tt_hoirs_)a)s
s      i| g                                                                         ^~~~n
, insert_or_assign_hint_impl, &&,/usr/local/clang/include/absl/synchronization/mutex.h :&718&:,35 :f awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
e,
        718|  |   ^ 
 e/usr/local/clang/include/absl/container/internal/btree_container.hx:p509l:i52c:i tnote:  expanded from macro 'ABSL_INTERNAL_X'W
rite  r509M | u t e x L o c k ( M uAtBeSxL*_ IaNbTsElR_NnAoLn_nAuTlTlR ImBuU)T
E      _| C                                  ^A
PTU/usr/local/clang/include/absl/base/nullability.hR:E241D:_22B:Y (note: texpanded from macro 'absl_nonnull'h
is  )241) | ,# d e f i n e   a b s l _ n o n n u l l   _ N o n\n
u      l| l                                                   ^

      |                      ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_In file included from fs2/s2builderutil_s2polygon_layer.cca:l18s:
eIn file included from (../src/s2/s2builderutil_s2polygon_layer.hi:f40_:
sIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:i66s:
fIn file included from i/usr/local/clang/include/absl/container/internal/btree.he:d73,:
 In file included from ./usr/local/clang/include/absl/strings/cord.h.:.94):
 In file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.h_:V31A:
_/usr/local/clang/include/absl/synchronization/mutex.hA:R722G:S74_:_ 
      warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]        ^

  722 |   exIn file included from ps2/s2builderutil_s2point_vector_layer.ccl:i18c:
iIn file included from t../src/s2/s2builderutil_s2point_vector_layer.h :W27r:
iIn file included from t../src/s2/mutable_s2shape_index.he:r30M:
uIn file included from t/usr/local/clang/include/absl/container/btree_map.he:x67L:
o/usr/local/clang/include/absl/container/internal/btree_container.hc:k588(:M3u:t ewarning: xpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]&
 mu   588A | B S LA_BISNLT_EIRNNTAELR_NAATLT_RXI(BiUnTsEe_rCtA_PoTrU_RaEsDs_iBgYn(,t hiinss)e,r
t      _| o                                                                         ^~~~r
_assign_hint_impl, &&, &&, false,
/usr/local/clang/include/absl/synchronization/mutex.h      :| 731  ^:
35: /usr/local/clang/include/absl/container/internal/btree_container.h:warning: 511type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
52: note:   expanded from macro 'ABSL_INTERNAL_X'731
 |     e511x | p l i c i t   W r i tAeBrSMLu_tIeNxTLEoRcNkA(LM_uAtTeTxR*I BaUbTsEl__CnAoPnTnUuRlElD _mBuY,( tchoinss)t) )C o n d i t i o n &   c o n d ) 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|                                                     ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/common.h:31  :2419 | :# dnote: emacro 'ABSL_INTERNAL_IF_true' defined heref
ine    31a | b#sdle_fnionnen uAlBlS L__NIoNnTnEuRlNlA
L      _| I                     ^F
_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insertIn file included from _s2/s2builderutil_s2polyline_layer.cco:r18_:
aIn file included from s../src/s2/s2builderutil_s2polyline_layer.hs:i27g:
nIn file included from ,../src/s2/mutable_s2shape_index.h :i30n:
sIn file included from e/usr/local/clang/include/absl/container/btree_map.hr:t66_:
oIn file included from r/usr/local/clang/include/absl/container/internal/btree.h_:a69s:
sIn file included from i/usr/local/clang/include/absl/container/internal/container_memory.hg:n29_:
hIn file included from i/usr/local/clang/include/absl/hash/hash.hn:t89_:
iIn file included from m/usr/local/clang/include/absl/hash/internal/hash.hp:l79,:
 In file included from &/usr/local/clang/include/absl/base/internal/endian.h&:,26 :
&&/usr/local/clang/include/absl/base/internal/unaligned_access.h,: 39f:a45l:s ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   39 |   i589n | l i n e   u i n t 1 6 _ t   U n a l itgrnueed,L ocaodn1s6t(_ciotnesrta tvoori(dh*i natb)s lA_BnSoLn_nIuNlTlE RpN)A L{_
C      O| M                                            ^M
AIn file included from )s2/s2builderutil_s2polygon_layer.cc/usr/local/clang/include/absl/base/nullability.h;:
:18      241:
| :In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~22../src/s2/s2builderutil_s2polygon_layer.h
:: 40:
note: /usr/local/clang/include/absl/container/internal/btree_container.hIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/container/btree_map.h
511::66  47:
241:In file included from  |  /usr/local/clang/include/absl/container/internal/btree.h#note: :dexpanded from macro 'ABSL_INTERNAL_X'73e
:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:  e94511 :
 | aIn file included from  b/usr/local/clang/include/absl/strings/internal/cordz_info.h s: l31 _:
 n /usr/local/clang/include/absl/synchronization/mutex.h o: n801 n: u20Al:Bl S warning: L_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_N
IoNnTnE  uR801lN | lA 
L       _C| Ao                     ^Tn
TdRiItBiUoTnE(_bCoAoPlT U(R*EaDb_sBlY_(ntohninsu)l)l)  f u n c ) ( v o i d *   a b s l _ n u l l a b i\l
i      t| y                                              ^~~~_
unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2builderutil_s2polyline_layer.cc241: | 18#:
dIn file included from e../src/s2/s2builderutil_s2polyline_layer.hf:i27n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l69 :
_In file included from N/usr/local/clang/include/absl/container/internal/container_memory.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/hash/hash.hl:
89      :
| In file included from                      ^/usr/local/clang/include/absl/hash/internal/hash.h
:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.hs2/s2builderutil_s2polygon_layer.cc::4518::
45In file included from :../src/s2/s2builderutil_s2polygon_layer.h :40warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from    /usr/local/clang/include/absl/container/internal/btree.h45: | 73i:
nIn file included from l/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31t:
3/usr/local/clang/include/absl/synchronization/mutex.h2:_801t: 45U:n awarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i
gne  d801L | o a dC3o2n(dciotnisotn (vbooiodl*  (a*basbls_ln_onnonnunlull lp )f u{n
c      )| (                                            ^v
oi/usr/local/clang/include/absl/base/nullability.hd:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#idleiftiyn_eu nakbnsolw_nn)o,n
n      u| l                                            ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o289n:n34u:l lnote: 
expanded from macro 'absl_nullability_unknown'      
|                      ^
  289 | #define absl_nulla/usr/local/clang/include/absl/container/internal/btree_container.hb:i590l:i3t:y _warning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
know  n590  | _ N uAlBlS_Lu_nIsNpTeEcRiNfAiLe_dX
(      i| n                                 ^s
ert_or_assigIn file included from ns2/s2builderutil_s2polyline_layer.ccIn file included from ,:s2/s2builderutil_s2polygon_layer.cc 18:i:
18nIn file included from :
s../src/s2/s2builderutil_s2polyline_layer.hIn file included from e:../src/s2/s2builderutil_s2polygon_layer.hr27:t:
40_In file included from :
o../src/s2/mutable_s2shape_index.hrIn file included from :_/usr/local/clang/include/absl/container/btree_map.h30a::
s66In file included from s:
/usr/local/clang/include/absl/container/btree_map.hiIn file included from :g/usr/local/clang/include/absl/container/internal/btree.h66n::
_73In file included from h:
/usr/local/clang/include/absl/container/internal/btree.hiIn file included from :n/usr/local/clang/include/absl/strings/cord.h69t::
_94In file included from i:
/usr/local/clang/include/absl/container/internal/container_memory.hmIn file included from :p/usr/local/clang/include/absl/strings/internal/cordz_info.h29l::
,31In file included from  :
/usr/local/clang/include/absl/hash/hash.h&/usr/local/clang/include/absl/synchronization/mutex.h:&:89,802:
 :In file included from &19/usr/local/clang/include/absl/hash/internal/hash.h&::, 79 warning: :
ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]rIn file included from 
u/usr/local/clang/include/absl/base/internal/endian.he:,26  
:
802       | /usr/local/clang/include/absl/base/internal/unaligned_access.h|  :  ^ 51
 : 45/usr/local/clang/include/absl/container/internal/btree_container.h ::  509 warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 52
 :   note:    vexpanded from macro 'ABSL_INTERNAL_X'51o
 | iidn*  l 509ia | bn se l  _u ni un lt l6 a4 b_ itAl BiUStnLya__lIuiNngTknEneRodNwLAnoL a_adAr6Tg4T)(R;cI
oB      nU| sT                  ^tE
 _vC/usr/local/clang/include/absl/base/nullability.hoA:iP289dT:*U34 R:aE bDnote: s_expanded from macro 'absl_nullability_unknown'lB
_Yn(  ot289nh | ni#usdl)el)f ,ip n) e   { a
 b       s|  l                                            ^ _
 n u/usr/local/clang/include/absl/base/nullability.h l: l241 a: b22 i: l  inote:  texpanded from macro 'absl_nonnull' y
 _ u   n241 k |  n#\od
we      nf|  i                                                   ^_n
Neu /usr/local/clang/include/absl/container/internal/common.hla:lb31_s:ul9n_:sn ponote: enmacro 'ABSL_INTERNAL_IF_true' defined herecn
iufli   le31 d | _
#N      do| en                                 ^fn
iunlel 
A      B| S                     ^L
_INTERNAL_IF_trIn file included from us2/s2builderutil_s2polygon_layer.cce:(18i:
fIn file included from _../src/s2/s2builderutil_s2polygon_layer.hs:a40t:
iIn file included from s/usr/local/clang/include/absl/container/btree_map.hf:i66e:
dIn file included from ,/usr/local/clang/include/absl/container/internal/btree.h :.73.:
.In file included from )/usr/local/clang/include/absl/strings/cord.h :i94f:
_In file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ha:t31i:
s/usr/local/clang/include/absl/synchronization/mutex.hf:i814e:d20
:       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  814 |   In file included from Cs2/s2builderutil_s2polyline_layer.cco:n18d:
In file included from iIn file included from s2/s2builderutil_s2point_vector_layer.cct../src/s2/s2builderutil_s2polyline_layer.h:i:18o27:
n:
In file included from (In file included from ../src/s2/s2builderutil_s2point_vector_layer.hb../src/s2/mutable_s2shape_index.h:o:27o30:
l:
In file included from  In file included from ../src/s2/mutable_s2shape_index.h(/usr/local/clang/include/absl/container/btree_map.h:*:30a66:
b:
In file included from sIn file included from /usr/local/clang/include/absl/container/btree_map.hl/usr/local/clang/include/absl/container/internal/btree.h:_:n67o69:
n:
/usr/local/clang/include/absl/container/internal/btree_container.hnIn file included from :u/usr/local/clang/include/absl/container/internal/container_memory.h590l::l293 :
:fIn file included from  u/usr/local/clang/include/absl/hash/hash.hwarning: n:c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes])89
(:
TIn file included from */usr/local/clang/include/absl/hash/internal/hash.h :a79  b:
590sIn file included from  | l/usr/local/clang/include/absl/base/internal/endian.h _: n26Au:
Bl/usr/local/clang/include/absl/base/internal/unaligned_access.hSl:La57_b:Ii36Nl:Ti Etwarning: Rytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N_
AuLn_k   Xn57(o | iwinnns)le,ir
nt      e_|  o                   ^vr
o_ia/usr/local/clang/include/absl/base/nullability.hds: s241Ui:ng22an:l, i note: giexpanded from macro 'absl_nonnull'nn
esde  Sr241tt | o_#rodere1_f6ai(snvseoi igadnb*_s hlai_bnnstol_n_innmuoplnlln, u _l&Nl&o ,np n,&u &lu,li 
nt      tr| 1u                     ^6e
_,t
       v| )In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ s2/s2builderutil_s2polygon_layer.cc
{:
18      :
  | In file included from 591                                   ^../src/s2/s2builderutil_s2polygon_layer.h | 
: 40 :
/usr/local/clang/include/absl/base/nullability.h In file included from : /usr/local/clang/include/absl/container/btree_map.h241 :: 6622 :
: In file included from   /usr/local/clang/include/absl/container/internal/btree.hnote:  :expanded from macro 'absl_nonnull' 73
 :
 In file included from    /usr/local/clang/include/absl/strings/cord.h241 : |  94 # :
dfIn file included from ea/usr/local/clang/include/absl/strings/internal/cordz_info.hfl:is31ne:
e,/usr/local/clang/include/absl/synchronization/mutex.h  :ac814bo:sn42ls:_tn _owarning: intype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]tn
eurlal  t 814o_rN(o | hn in nuCtlo)ln 
dA      iB| tS                     ^iL
o_nI(NbToEoRlN A(L*_aCbOsMlM_An)o;n
n      u| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
 fu/usr/local/clang/include/absl/container/internal/btree_container.hn:c509):(47T:*  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_n  u509l | l a b i l i t y _In file included from  us2/s2builderutil_s2polyline_layer.cc n:Ak18Bn:
SoIn file included from Lw../src/s2/s2builderutil_s2polyline_layer.h_n:I)27N,T:

EIn file included from       R../src/s2/mutable_s2shape_index.h| N:                                         ^A30
L:
_/usr/local/clang/include/absl/base/nullability.hIn file included from A:/usr/local/clang/include/absl/container/btree_map.hT289:T:66R34:
I:In file included from B /usr/local/clang/include/absl/container/internal/btree.hU:note: T69expanded from macro 'absl_nullability_unknown'E:

_In file included from C/usr/local/clang/include/absl/container/internal/container_memory.h  A:289P29 | T:
#UIn file included from dR/usr/local/clang/include/absl/hash/hash.heE:fD89i_:
nBIn file included from eY/usr/local/clang/include/absl/hash/internal/hash.h (:at79bh:
isIn file included from sl/usr/local/clang/include/absl/base/internal/endian.h)_:)n26,u:
 l/usr/local/clang/include/absl/base/internal/unaligned_access.h l: a61 b: i36 l: i  twarning:  ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] _
 u n k    n61 o |  wi nn  l _i Nn ue l  lv _o\ui
nd      s | pU                                              ^~~~en
cailfiigende/usr/local/clang/include/absl/container/internal/btree_container.h
d:      S590| t:                                 ^o3
r:e 3warning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
v/usr/local/clang/include/absl/container/internal/btree_container.ho:i511d:*52 :In file included from a s2/s2builderutil_s2polygon_layer.ccb:note: s18expanded from macro 'ABSL_INTERNAL_X'l:

_In file included from n../src/s2/s2builderutil_s2polygon_layer.ho  :n51140n | u:
 lIn file included from  l/usr/local/clang/include/absl/container/btree_map.h  : p66 ,:
  In file included from  u/usr/local/clang/include/absl/container/internal/btree.h i: n73 t:
A3In file included from B2/usr/local/clang/include/absl/strings/cord.hS_:Lt94_ :
IvNIn file included from )T/usr/local/clang/include/absl/strings/internal/cordz_info.h E:{R31
N:
      A/usr/local/clang/include/absl/synchronization/mutex.h| L:                                   ^_815
A:T16/usr/local/clang/include/absl/base/nullability.hT::R 241I:warning: B22type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]U:
T Enote:   _expanded from macro 'absl_nonnull'815C
 | A   P 241T  | U #R dE eD f_ iB nY e(  t ahTbi*ss l)a_)bn)so ln _n nu ul ll l  a_ bN io ln in tu yl _l u
 n       k|  n                     ^ o
 w n   a r\g
)      ;| 
                                                   ^      
|                ^
/usr/local/clang/include/absl/container/internal/common.h:32/usr/local/clang/include/absl/base/nullability.h::9289:: 34:note:  macro 'ABSL_INTERNAL_IF_false' defined herenote: 
expanded from macro 'absl_nullability_unknown'
   32   | 289# | d#edfeifnien eA BaSbLs_lI_NnTuElRlNaAbLiIn file included from _ls2/s2builderutil_s2polyline_layer.ccIi:Ft18_y:
f_In file included from au../src/s2/s2builderutil_s2polyline_layer.hln:sk27en:
(oIn file included from iw../src/s2/mutable_s2shape_index.hfn:_ 30s_:
aNIn file included from tu/usr/local/clang/include/absl/container/btree_map.hil:sl66f_:
iuIn file included from en/usr/local/clang/include/absl/container/internal/btree.hds:,p69 e:
.cIn file included from .i/usr/local/clang/include/absl/container/internal/container_memory.h.f:)i29 e:
_dIn file included from _
/usr/local/clang/include/absl/hash/hash.hV      :A| 89_                                 ^:
A
In file included from R/usr/local/clang/include/absl/hash/internal/hash.hG:S79_:
_In file included from 
/usr/local/clang/include/absl/base/internal/endian.h      :| 26        ^:

/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inlIn file included from is2/s2builderutil_s2polygon_layer.ccn:e18 :
vIn file included from o../src/s2/s2builderutil_s2polygon_layer.hi:d40 :
UIn file included from n/usr/local/clang/include/absl/container/btree_map.ha:l66i:
gIn file included from n/usr/local/clang/include/absl/container/internal/btree.he:d73S:
tIn file included from o/usr/local/clang/include/absl/strings/cord.hr:e946:
4In file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.hv:o31i:
d/usr/local/clang/include/absl/synchronization/mutex.h*: 830a:b14s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l830l |   p ,   u i nbto6o4l_ t( *va)b s{l
_      n| o                                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :f22u:n cnote: )expanded from macro 'absl_nonnull'(
T*   241a | b#sdle_fniunlel aabbislli_tnyo_nunnuklnlo w_nN)o,n
n      u| l             ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool In file included from (s2/s2builderutil_s2point_vector_layer.cc*:a18b:
sIn file included from l../src/s2/s2builderutil_s2point_vector_layer.h_:n27o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from f/usr/local/clang/include/absl/container/btree_map.hu:n67c:
)/usr/local/clang/include/absl/container/internal/btree_container.h(:T592*: 3a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
null  a592b | i l iAtByS_Lu_nIkNnToEwRnN)A,L
_      X| (                                   ^i
ns/usr/local/clang/include/absl/base/nullability.he:r289t:_34o:r _note: aexpanded from macro 'absl_nullability_unknown's
si  g289n | ,# dienfsienret _aobrs_la_snsuilglna_bhiilnitt_yi_mupnlk,n o&w&n,  _&N&u,l lt_ruunes,p
e      c| i  ^f
ie/usr/local/clang/include/absl/container/internal/btree_container.hd:
509      :| 52                                 ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_IIn file included from Ns2/s2builderutil_s2polygon_layer.ccT:E18R:
NIn file included from A../src/s2/s2builderutil_s2polygon_layer.hL:_40A:
TIn file included from T/usr/local/clang/include/absl/container/btree_map.hR:I66B:
UIn file included from T/usr/local/clang/include/absl/container/internal/btree.hE:_73C:
AIn file included from P/usr/local/clang/include/absl/strings/cord.hT:U94R:
EIn file included from D/usr/local/clang/include/absl/strings/internal/cordz_info.h_:B31Y:
(/usr/local/clang/include/absl/synchronization/mutex.ht:h831i:s46):) ,warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
       831  |              t y p e n a m e   a\b
s      l| :                                                   ^:
ty/usr/local/clang/include/absl/container/internal/common.hp:e31_:i9d:e nnote: tmacro 'ABSL_INTERNAL_IF_true' defined herei
ty<   T31> | :#:dteyfpien*e  aAbBsSlL__nIuNlTlEaRbNiAlLi_tIyF__utnrkuneo(winf
_      s| a                                             ^t
is/usr/local/clang/include/absl/base/nullability.hf:i289e:d34,:  .note: .expanded from macro 'absl_nullability_unknown'.
)   i289f | _#sdaetfiisnfei eadb
s      l| _        ^n
ullability_unknowIn file included from ns2/s2builderutil_s2point_vector_layer.cc :_18N:
uIn file included from l../src/s2/s2builderutil_s2point_vector_layer.hl:_27u:
nIn file included from s../src/s2/mutable_s2shape_index.hp:e30c:
iIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:e67d:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 592                                 ^:
3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNALIn file included from _s2/s2builderutil_s2polygon_layer.ccX:(18i:
nIn file included from s../src/s2/s2builderutil_s2polygon_layer.he:r40t:
_In file included from o/usr/local/clang/include/absl/container/btree_map.hr:_66a:
sIn file included from s/usr/local/clang/include/absl/container/internal/btree.hi:g73n:
,In file included from  /usr/local/clang/include/absl/strings/cord.hi:n94s:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.ht:_31o:
r/usr/local/clang/include/absl/synchronization/mutex.h_:a844s:s10i:g nwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
int  _844i | m p l ,   & &T,*  &a&b,s lt_rnuoen,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
obj  e593c | t , 
        |           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 t  r241u | e#,d ecfoinnset _aibtselr_antoonrn(uhliln t_)N oAnBnSuLl_lI
N      T| E                     ^R
NAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509In file included from :s2/s2builderutil_s2polygon_layer.cc47::18 :
In file included from note: ../src/s2/s2builderutil_s2polygon_layer.hexpanded from macro 'ABSL_INTERNAL_X':
40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:  66509:
 | In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hB:S31L:
_/usr/local/clang/include/absl/synchronization/mutex.hI:N845T:E45R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ATT  R845I | B U T E _ C AbPoToUlR E(Da_bBsYl(:t:htiysp)e)_,i d e n t i t y < T > : : t y p e : : *   a b s l\_
n      o| n                                              ^~~~n
ull met/usr/local/clang/include/absl/container/internal/btree_container.hh:o592d:)3(:) )warning: ;passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      | /usr/local/clang/include/absl/container/internal/btree_container.h                                            ^:
511:52/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'ABSL_INTERNAL_X':
 note: expanded from macro 'absl_nonnull'  
511 |    241  |  # d e f i n e  AaBbSsLl__InNoTnEnRuNlAlL __ANToTnRnIuBlUlT
E      _| C                     ^A
PTURED_BY(this)))           In file included from  s2/s2builderutil_s2polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polygon_layer.h : 40 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66\:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                                   ^73
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/common.h::9431:
:In file included from 9/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
note: /usr/local/clang/include/absl/synchronization/mutex.hmacro 'ABSL_INTERNAL_IF_true' defined here:
850:16:    31 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n850e |   A B S L _ IcNoTnEsRtN ATL*_ IaFb_stlr_uneo(ninfu_lsla toibsjfeicetd,,
       .| .               ^.
) /usr/local/clang/include/absl/base/nullability.hi:f241_:s22a:t inote: sexpanded from macro 'absl_nonnull'f
ie  d241
 |       #| d        ^e
fine absl_nIn file included from os2/s2builderutil_s2point_vector_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_s2point_vector_layer.h :_27N:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                     ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSLIn file included from _s2/s2builderutil_s2polygon_layer.ccI:N18T:
EIn file included from R../src/s2/s2builderutil_s2polygon_layer.hN:A40L:
_In file included from X/usr/local/clang/include/absl/container/btree_map.h(:i66n:
sIn file included from e/usr/local/clang/include/absl/container/internal/btree.hr:t73_:
oIn file included from r/usr/local/clang/include/absl/strings/cord.h_:a94s:
sIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hg:n31,:
 /usr/local/clang/include/absl/synchronization/mutex.hi:n851s:e45r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_  a851s | s i g n _ h ibnoto_li m(palb,s l&:&:,t y&p&e,_ itdreunet,i
t      y| <  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~T
>::  t593y | p e : : *   a b s l _ n o n n u l l  tmreuteh,o dc)o(n)s
t      _| i                                            ^t
er/usr/local/clang/include/absl/base/nullability.ha:t241o:r22(:h inote: nexpanded from macro 'absl_nonnull't
)   A241B | S#Ld_eIfNiTnEeR NaAbLs_lC_OnMoMnAn)u;l
l       | _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
onn/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:
47      :|                       ^
note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INIn file included from Ts2/s2builderutil_s2polygon_layer.ccE:R18N:
AIn file included from L../src/s2/s2builderutil_s2polygon_layer.h_:A40T:
TIn file included from R/usr/local/clang/include/absl/container/btree_map.hI:B66U:
TIn file included from E/usr/local/clang/include/absl/container/internal/btree.h_:C73A:
PIn file included from T/usr/local/clang/include/absl/strings/cord.hU:R94E:
DIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hB:Y31(:
t/usr/local/clang/include/absl/synchronization/mutex.hh:i855s:)34):)  warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      855  |      e x p l i c i t   C o n d i\t
i      o| n                                              ^~~~(
const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 618/usr/local/clang/include/absl/strings/cord.h::6494::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/synchronization/mutex.h:886:  31618: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL  _886I | N T EeRxNpAlLi_cXi(tt rCyo_nedmiptliaocne(,c otnrsyt_ eTm*p laabcsel__inmopnln,u lclo nosbtj )&
,       | f                              ^a
ls/usr/local/clang/include/absl/base/nullability.he:)241;:
22      :|                                                                 ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h:  596241: | 9#:d enote: fmacro 'ABSL_INTERNAL_X' defined herei
ne   a596b | s#ld_enfoinnneu lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit CIn file included from os2/s2builderutil_s2polyline_layer.ccn:d18i:
tIn file included from i../src/s2/s2builderutil_s2polyline_layer.ho:n27(:
cIn file included from o../src/s2/mutable_s2shape_index.hn:s30t:
 In file included from T/usr/local/clang/include/absl/container/btree_map.h*: 66a:
bIn file included from s/usr/local/clang/include/absl/container/internal/btree.hl:_69n:
oIn file included from n/usr/local/clang/include/absl/container/internal/container_memory.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/hash/hash.ho:b89j:
)In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h      :| 79                              ^:

/usr/local/clang/include/absl/base/internal/endian.h:/usr/local/clang/include/absl/base/nullability.h160::24136::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 160# | /usr/local/clang/include/absl/container/internal/btree_container.hdi:en618fl:ii3nn:ee   warning: aupassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]bi
snlt_1  n6618o_n | tn  u LlAolBa Sd_L1N_6oI(nNcnTouEnlRslNt
A       Lv| _o                     ^Xi(
dt*r ya_besmlp_lnaocnen,u ltlr yp_)e m{p
l      a| c                                   ^e
_im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 &  ,241  | In file included from f#s2/s2builderutil_s2polygon_layer.ccad:le18sf:
eiIn file included from )n../src/s2/s2builderutil_s2polygon_layer.h;e:
 40      a:
| bIn file included from   ^s/usr/local/clang/include/absl/container/btree_map.h
l:_66/usr/local/clang/include/absl/container/internal/btree_container.hn:
:oIn file included from 611n/usr/local/clang/include/absl/container/internal/btree.h:n:52u73:l:
 lIn file included from note:  /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'ABSL_INTERNAL_X'_:
N94o:
n  In file included from n611u/usr/local/clang/include/absl/strings/internal/cordz_info.hl | :l 31
 :
       | /usr/local/clang/include/absl/synchronization/mutex.h                      ^: 
922 : 48 :   warning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B
SL_I  N922T | E R NsAtLa_tAiTcT RbIoBoUlT EG_uCaArPaTnUtReEeDd_EBqYu(atlh(icso)n)sIn file included from ,ts2/s2builderutil_s2polyline_layer.cc  : C18 o:
 nIn file included from  d../src/s2/s2builderutil_s2polyline_layer.h i: t27 i:
 oIn file included from  n../src/s2/mutable_s2shape_index.h *:  30 a:
 bIn file included from  s/usr/local/clang/include/absl/container/btree_map.h l: _66 n:
 uIn file included from  l/usr/local/clang/include/absl/container/internal/btree.h l: a69 b:
 lIn file included from  e/usr/local/clang/include/absl/container/internal/container_memory.h  :\a29
,:
      
In file included from |       /usr/local/clang/include/absl/hash/hash.h                                                   ^| :
                                               ^89
:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/base/nullability.h32:::792579:
::23/usr/local/clang/include/absl/base/internal/endian.h ::note:  164macro 'ABSL_INTERNAL_IF_false' defined here:note: 
27expanded from macro 'absl_nullable':
    32warning:    | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257#
 | d#edf  ei164fn | iein neAl BiaSnbLes_ lIv_NonTiuEdlR lNSaAtbLol_reIe F1__6Nf(uavllolsiaedb(*li efa
_b      ss| al                      ^t_
insofnineudl,l  In file included from .ps2/s2builderutil_s2polygon_layer.cc.,:. 18)u:
 iIn file included from _n../src/s2/s2builderutil_s2polygon_layer.h_t:V140A6:
__In file included from At/usr/local/clang/include/absl/container/btree_map.hR :Gv66S):
_ In file included from _{/usr/local/clang/include/absl/container/internal/btree.h

:            73| | :
        ^                          ^In file included from 

/usr/local/clang/include/absl/strings/cord.h:94:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h241::3122:
: /usr/local/clang/include/absl/synchronization/mutex.h:note: 923expanded from macro 'absl_nonnull':
48:   241warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
def  i923n | e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
   consIn file included from ts2/s2builderutil_s2point_vector_layer.cc :C18o:
nIn file included from d../src/s2/s2builderutil_s2point_vector_layer.hi:t27i:
oIn file included from n../src/s2/mutable_s2shape_index.h*: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l619a:b63l:e  warning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
;
      |                                                ^  
619 | /usr/local/clang/include/absl/base/nullability.h : 257A:B23S:L _note: Iexpanded from macro 'absl_nullable'N
In file included from T  s2/s2builderutil_s2polyline_layer.ccE257:R | 18N#:
AdIn file included from Le../src/s2/s2builderutil_s2polyline_layer.h_f:Xi27(n:
teIn file included from r ../src/s2/mutable_s2shape_index.hya:_b30es:
mlIn file included from p_/usr/local/clang/include/absl/container/btree_map.hln:au66cl:
elIn file included from ,a/usr/local/clang/include/absl/container/internal/btree.h b:tl69re:
y In file included from __/usr/local/clang/include/absl/container/internal/container_memory.heN:mu29pl:
llIn file included from aa/usr/local/clang/include/absl/hash/hash.hcb:el89_e:
i
In file included from m      /usr/local/clang/include/absl/hash/internal/hash.hp| :l                      ^79,
:
 /usr/local/clang/include/absl/base/internal/endian.hc:o168n:s36t:  &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
tru  e168) | ;i
n      l| i                                                              ^n
e /usr/local/clang/include/absl/container/internal/btree_container.hu:i596n:t93:2 _note: tmacro 'ABSL_INTERNAL_X' defined here 
Loa  d5963 | 2#In file included from (ds2/s2builderutil_s2polygon_layer.ccce:of18ni:
snIn file included from te../src/s2/s2builderutil_s2polygon_layer.h  :vA40oB:
iSIn file included from dL/usr/local/clang/include/absl/container/btree_map.h*_: I66aN:
bTIn file included from sE/usr/local/clang/include/absl/container/internal/btree.hlR:_N73nA:
oLIn file included from n_/usr/local/clang/include/absl/strings/cord.hnX:u(94lF:
luIn file included from  n/usr/local/clang/include/absl/strings/internal/cordz_info.hpc:),31  :
{C/usr/local/clang/include/absl/synchronization/mutex.h
a:      l948| l:                                   ^e10
e:, /usr/local/clang/include/absl/base/nullability.h :warning: K241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Q:
u22a:l   ,948note:   | expanded from macro 'absl_nonnull'K 
V ab  lo241uo | el#, d (e.*f.ai.bn)se l  _a nb us ll l_ an bo ln en  u el vl a  l_ _N )o (n cn ou nl sl\t

             C| | o                     ^        ^n

dition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2builderutil_s2polyline_layer.ccf:i18n:
eIn file included from  ../src/s2/s2builderutil_s2polyline_layer.ha:b27s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.hb:l66e:
 In file included from _/usr/local/clang/include/absl/container/internal/btree.hN:u69l:
lIn file included from a/usr/local/clang/include/absl/container/internal/container_memory.hb:l29e:

In file included from       /usr/local/clang/include/absl/hash/hash.h| :                      ^89
:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :s2/s2builderutil_s2polygon_layer.cc172::1827:
:In file included from  ../src/s2/s2builderutil_s2polygon_layer.h:warning: 40type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
  In file included from 172/usr/local/clang/include/absl/container/internal/btree.h | :/usr/local/clang/include/absl/container/internal/btree_container.hi73:n:
619lIn file included from :i/usr/local/clang/include/absl/strings/cord.h3n::e94  :
warning: vIn file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o/usr/local/clang/include/absl/strings/internal/cordz_info.h
i:d31 :
  S/usr/local/clang/include/absl/synchronization/mutex.h619t: | o948 r: e48A3:B2 S(warning: Lvtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_o
IiNdT*  E 948Ra | Nb As Llb__oXno(oltn rn(yu*_laelbm sppll,_a ncuueil,nl tat3br2ly_e_t e emvvp)al la{_c
)e      (_| ci                          ^om
npsl/usr/local/clang/include/absl/base/nullability.ht,:  241Cc:oo22nn:ds itnote: t expanded from macro 'absl_nonnull'i&
o,n   *t241 r | au#beds)el;f_
in      no| en  ^ n
aubl/usr/local/clang/include/absl/container/internal/btree_container.hsl:l)611_ :n=52o :nn nunote: ulexpanded from macro 'ABSL_INTERNAL_X'll
lp t_r  N;611o
 | n       n|  u                                               ^ l
 l 
/usr/local/clang/include/absl/base/nullability.h       : | 241                      ^: 
22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nAeT TaRbIsBlU_TnEo_nCnAuPlTlU R_ENDo_nBnYu(ltlh
i      s| )                     ^)
,   In file included from  s2/s2builderutil_s2polyline_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_layer.h : 27 :
In file included from  In file included from s2/s2builderutil_s2polygon_layer.cc ../src/s2/mutable_s2shape_index.h :: 1830 :
:
 In file included from In file included from  ../src/s2/s2builderutil_s2polygon_layer.h/usr/local/clang/include/absl/container/btree_map.h :: 4066 :
:
 In file included from In file included from  /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/btree.h :: 6669\:
:

In file included from In file included from       /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/container/internal/container_memory.h| ::                                                   ^7329
:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/hash/hash.h:::943189:
::
In file included from 9In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/hash/internal/hash.h: :3179note: :
:
macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/synchronization/mutex.h
/usr/local/clang/include/absl/base/internal/endian.h::951176:   :93136: | : # warning: dwarning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
f
i  n951e |     176A  | BviSonLil_diI*nN eTa EbuRsiNlnA_tLn6_u4Il_Flt_a tbLrloueae d(a6ir4fg(__cs oa=nt sintsu flviloepidtd,r* ; .
a.      b.| s)        ^l 
_inf/usr/local/clang/include/absl/base/nullability.ho_:ns257na:ut23li:ls  fnote: piexpanded from macro 'absl_nullable')e
 d{
  
      257      |  | |         ^#                                   ^d

ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  In file included from l241ls2/s2builderutil_s2point_vector_layer.cc | a:#b18dl:
eeIn file included from f ../src/s2/s2builderutil_s2point_vector_layer.hi_:nN27eu:
 lIn file included from al../src/s2/mutable_s2shape_index.hba:sb30ll:
_eIn file included from n
/usr/local/clang/include/absl/container/btree_map.ho      :n| 67n                      ^:
u
/usr/local/clang/include/absl/container/internal/btree_container.hl:l619 :_3N:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]uIn file included from 
ls2/s2builderutil_s2polygon_layer.ccl:
18      :
|   In file included from                      ^619../src/s2/s2builderutil_s2polygon_layer.h
 | : 40 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L66_:
IIn file included from N/usr/local/clang/include/absl/container/internal/btree.hT:E73R:
NIn file included from A/usr/local/clang/include/absl/strings/cord.hL:_94X:
(In file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hr:y31_:
e/usr/local/clang/include/absl/synchronization/mutex.hm:p954l:a52c:e ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ry_  e954m | p l asIn file included from cts2/s2builderutil_s2polyline_layer.ccea:_t18ii:
mcIn file included from p ../src/s2/s2builderutil_s2polyline_layer.hlb:,o27 o:
clIn file included from o ../src/s2/mutable_s2shape_index.hnC:sa30tl:
 lIn file included from &V/usr/local/clang/include/absl/container/btree_map.h,o :it66dr:
PuIn file included from te/usr/local/clang/include/absl/container/internal/btree.hr):F;69u
:
n      In file included from c| /usr/local/clang/include/absl/container/internal/container_memory.ht  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:i
29o:
nIn file included from /usr/local/clang/include/absl/container/internal/btree_container.h(/usr/local/clang/include/absl/hash/hash.hc::o61189n::
s47In file included from t:/usr/local/clang/include/absl/hash/internal/hash.h  :C79note: o:
expanded from macro 'ABSL_INTERNAL_X'n
/usr/local/clang/include/absl/base/internal/endian.hd:i180t:i  27o611:n |  *  warning:  atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] b
 s l _   n180o n |  ni unAllBliS nLce_) I;vN
oT      iE| dR                                                   ^ N
SAtL/usr/local/clang/include/absl/base/nullability.ho_:rA241eT:6T224R:(I vBnote: oUexpanded from macro 'absl_nonnull'iTd
E*_   C241aA | bP#sTdlUe_RfnEioDnn_enB uYal(blts hlpi_,sn )ou)ni,nn ut l6 l4  _ _t N  ov n) n  u{ l
 l       
|                                  ^ | 
                      ^ 
/usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
\
        241|  |                                               ^~~~#
dIn file included from es2/s2builderutil_s2polygon_layer.ccf:i18n:
eIn file included from  ../src/s2/s2builderutil_s2polygon_layer.ha:b40s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condit/usr/local/clang/include/absl/container/internal/btree_container.hi:o620n:*59 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_non  n620u | l l  AcB)S;L
_      I| N                                                   ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22X:( tnote: rexpanded from macro 'absl_nonnull'y
_e  m241p | l#adceef,i nter ya_besmlp_lnaocnen_uilmlp l_,N o&n&n,u lfla
l      s| e                     ^)
;
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #In file included from ds2/s2builderutil_s2polygon_layer.cce:f18i:
nIn file included from e../src/s2/s2builderutil_s2polygon_layer.h :A40B:
SIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:I66N:
TIn file included from E/usr/local/clang/include/absl/container/internal/btree.hR:N73A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hX:(94F:
uIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hc:,31 :
C/usr/local/clang/include/absl/synchronization/mutex.ha:l958l:e50e:,  warning: Ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Q
ual  ,958  | K V asltuaet,i c. .b.o)o l   C a s t A n d C a l l M e t h o d ( c o\n
s      t|          ^C
ondition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]620
:3:   961warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 st  a620t | i c  AbBoSoLl_ ICNaTlElRBNyARLe_fX((ctornys_te mTp*l aacbes,l _tnroyn_neumlpll asceel_fi)m p{l
,       | &                                 ^&
, /usr/local/clang/include/absl/base/nullability.hf:a241l:s22e:) ;note: 
expanded from macro 'absl_nonnull'      
|   ^  
241 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e611f:i52n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n611o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTURED_BY(this)),  In file included from  s2/s2builderutil_s2polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polygon_layer.h : 40 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
\In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                                                   ^:

/usr/local/clang/include/absl/synchronization/mutex.h:975/usr/local/clang/include/absl/container/internal/common.h::3132:: 9:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
macro 'ABSL_INTERNAL_IF_false' defined here
     97532 |  |  # dienfliinnee  AvBoSiLd_ IRNeTaEdRCNaAlLl_bIaFc_kf(aTl*s ea(bisfl__snaotninsuflile dc,a l.l.b.a)c k_)_ VcAo_nAsRtG S{_
_      
|                                     ^| 
        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18In file included from :
s2/s2builderutil_s2polygon_layer.ccIn file included from :../src/s2/s2builderutil_s2point_vector_layer.h18::
27In file included from :
../src/s2/s2builderutil_s2polygon_layer.hIn file included from :../src/s2/mutable_s2shape_index.h40::
30In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h66::
67In file included from :
/usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/container/internal/btree_container.h73::
621In file included from :/usr/local/clang/include/absl/strings/cord.h58::94 :
In file included from warning: In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2builderutil_lax_polyline_layer.cc:
:3118:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h  ../src/s2/s2builderutil_lax_polyline_layer.h:621:979 | 28: :
43 In file included from :A../src/s2/s2builder.h B:warning: S31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L:

_In file included from I/usr/local/clang/include/absl/container/flat_hash_set.hN:  T45979E:
 | R /usr/local/clang/include/absl/container/internal/raw_hash_set.hN :As2663Lt:_a53Xt:(i tcwarning: r 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]yb
_oeomlp l Aa2663lc | we a, y  st Tr ry u_Tee&(m&cp olvnaasclteu _eCi omAnpBdlSi,Lt _i&Io&Nn,T* E tRarNbuAseLl)__;An
Tu      Tl| Rl                                                         ^Ia
BbUl/usr/local/clang/include/absl/container/internal/btree_container.hTe:E)596_ :C{9A :Pr Tenote: Utmacro 'ABSL_INTERNAL_X' defined hereRu
ErDn_   Bt596Yr | (u#tedh;ei fs}i)
n)      e
|                                                  ^A| 
B                                                    ^~~~S
/usr/local/clang/include/absl/base/nullability.hL:_257I:N23T:E Rnote: Nexpanded from macro 'absl_nullable'A
L_  X257( | F#udnecf,i nCea lalbesel,_ nKuQlulaalb,l eK V_aNluulel,a b.l.e.
)       |                        ^ 
                   \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);In file included from 
s2/s2builderutil_s2polygon_layer.cc      /usr/local/clang/include/absl/container/internal/raw_hash_set.h:| :18  ^2692:

:In file included from 58../src/s2/s2builderutil_s2polygon_layer.h/usr/local/clang/include/absl/container/internal/btree_container.h::: 40611:
warning: :In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]52/usr/local/clang/include/absl/container/btree_map.h
:: 66:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/internal/btree.h 
:In file included from 269273  s2/s2builderutil_s2polyline_layer.cc | :
611: In file included from  | 18 /usr/local/clang/include/absl/strings/cord.h :
 : In file included from  94 ../src/s2/s2builderutil_s2polyline_layer.h :
 : In file included from  27c/usr/local/clang/include/absl/strings/internal/cordz_info.h :
o: In file included from n31 ../src/s2/mutable_s2shape_index.hs:
 :t/usr/local/clang/include/absl/synchronization/mutex.h  30:TA:
1033&BIn file included from : S/usr/local/clang/include/absl/container/btree_map.h20vL::a_66 lI:
warning: uNIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eT/usr/local/clang/include/absl/container/internal/btree.h
 E:AR69B N:
S1033AIn file included from L | L/usr/local/clang/include/absl/container/internal/container_memory.h_ _:I A29NvT:
ToTiIn file included from ERd/usr/local/clang/include/absl/hash/hash.hRI :NBWU89TAa:
ELiIn file included from __t/usr/local/clang/include/absl/hash/internal/hash.hCA(:ATMT79PuR:
Tt/usr/local/clang/include/absl/base/internal/endian.hIUe:BRx250UE*:TD 36E_a:_Bb CYswarning: A(ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Pt_
nThoUiRn  sEnDu250l)_ | l) Bi,mYun ()l t hi {in e
s        ) u| ) i                   ^n
 
t       1| /usr/local/clang/include/absl/base/nullability.h 6                                                         ^~~~: _
t241  : L22 o: a  dnote:  1expanded from macro 'absl_nonnull' 6
 ( c   o 241n  | s #t d  ev\fo
ii      nd| e*                                                   ^  
aabb/usr/local/clang/include/absl/container/internal/common.hss:ll31__:nn9oo:nn nnnote: uumacro 'ABSL_INTERNAL_IF_true' defined herell
ll  _p   N)31o  | n{#n
du      el| fl                                   ^i

n      e|  /usr/local/clang/include/absl/base/nullability.h                     ^A:
B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#IdFe_ftirnuee (In file included from ais2/s2builderutil_s2polygon_layer.ccbf:s_18ls:
_aIn file included from nt../src/s2/s2builderutil_s2polygon_layer.hoi:ns40nf:
uiIn file included from le/usr/local/clang/include/absl/container/btree_map.hld: ,66_ :
N.In file included from o./usr/local/clang/include/absl/container/internal/btree.hn.:n)73u :
liIn file included from lf/usr/local/clang/include/absl/strings/cord.h
_:      s94| a:
                     ^tIn file included from 
i/usr/local/clang/include/absl/strings/internal/cordz_info.hs:f31i:
e/usr/local/clang/include/absl/synchronization/mutex.hd:
1050      :| 31        ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   boolIn file included from  s2/s2builderutil_s2point_vector_layer.ccW:a18i:
tIn file included from W../src/s2/s2builderutil_s2point_vector_layer.hi:t27h:
TIn file included from i../src/s2/mutable_s2shape_index.hm:e30o:
uIn file included from t/usr/local/clang/include/absl/container/btree_map.h(:M67u:
t/usr/local/clang/include/absl/container/internal/btree_container.he:x621In file included from *:s2/s2builderutil_s2polyline_layer.cc 3:a:18b :
sIn file included from warning: l../src/s2/s2builderutil_s2polyline_layer.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_:
n27o:
nIn file included from n../src/s2/mutable_s2shape_index.h  u:621l30 | l:
  In file included from  m/usr/local/clang/include/absl/container/btree_map.hAuB:,S66 L:
a_In file included from bI/usr/local/clang/include/absl/container/internal/btree.hsNl:T:69E::
RDIn file included from Nu/usr/local/clang/include/absl/container/internal/container_memory.hAr:La29_t:
XiIn file included from (o/usr/local/clang/include/absl/hash/hash.htn:r 89yt:
_iIn file included from em/usr/local/clang/include/absl/hash/internal/hash.hme:po79lu:
at/usr/local/clang/include/absl/base/internal/endian.hc):e 254,{: 
27t      :r|  y                              ^warning: _
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
m/usr/local/clang/include/absl/base/nullability.hp:l241  a:254c22 | e:i_ ninote: lmexpanded from macro 'absl_nonnull'ip
n/usr/local/clang/include/absl/container/internal/raw_hash_set.hle   :,241v2734  | o#:&id65&de :,fS t oiwarning: ntr'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ereu
 1ea6)b(; sv
2734lo       | _i| d n   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * o 
  n anb/usr/local/clang/include/absl/container/internal/btree_container.h usl: ll_611n  :o _47Nn : onn  unnote:  lullexpanded from macro 'ABSL_INTERNAL_X'  lp
 
,        Tu&i  | &n 611v                     ^t | a 
 1l 6u _e t   A vB )S  L {_A
IB      NS| TL                          ^E_
RINNIn file included from /usr/local/clang/include/absl/base/nullability.hATs2/s2builderutil_s2polygon_layer.ccE:L:R241_18N:A:
A22TIn file included from L:T../src/s2/s2builderutil_s2polygon_layer.h_ R:Anote: I40Texpanded from macro 'absl_nonnull'B:
T
UIn file included from RT/usr/local/clang/include/absl/container/btree_map.h  IE:241B_66C | U:
A#TdIn file included from ePET/usr/local/clang/include/absl/container/internal/btree.hf_U:RiC73EnA:
DePIn file included from T_ /usr/local/clang/include/absl/strings/cord.hUBaY:Rb(94tEs:
lhDIn file included from __i/usr/local/clang/include/absl/strings/internal/cordz_info.hBns:Yo)n31n():
ut
/usr/local/clang/include/absl/synchronization/mutex.hlh      i:l| s1069                                                                 ^~~~):_
)32N,:o  n warning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u 
l l 
         |  1069                     ^  | 
     b o o l   W a i t W i t h D\e
a      d| l                                              ^~~~i
ne(Mutex* absl_nonnull mu, absl::TimeIn file included from  s2/s2builderutil_s2polyline_layer.ccd:e18a:
dIn file included from l../src/s2/s2builderutil_s2polyline_layer.hi:n27e:
)In file included from  ../src/s2/mutable_s2shape_index.h{:
30      :
| In file included from                                ^/usr/local/clang/include/absl/container/btree_map.h
:66:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h241::6922:
:In file included from  /usr/local/clang/include/absl/container/internal/container_memory.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/hash/hash.h:  89241:
 | In file included from #/usr/local/clang/include/absl/hash/internal/hash.hd:e79f:
i/usr/local/clang/include/absl/base/internal/endian.hn:e258 :a36b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u258l | li n_lNionnen uuliln
t      3| 2                     ^_
t Load32(const void* absl_nonnull pIn file included from )s2/s2builderutil_s2polygon_layer.cc :{18
:
      In file included from | ../src/s2/s2builderutil_s2polygon_layer.h                                   ^:
40:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24166::
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :73note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1088e: 35a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non n1088u | l l  v_oNiodn nEunlalb
l      /usr/local/clang/include/absl/container/internal/btree_container.he| :D                     ^622e
:b3u:g Lwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]g
(con  s622t |   c hAaBrS*L _aIbNsTlE_RnNuAlLl_aXb(lter yn_aemmep)l;a
c      In file included from e| s2/s2builderutil_s2polyline_layer.cc,                                  ^: 
18t:
rIn file included from /usr/local/clang/include/absl/base/nullability.hy../src/s2/s2builderutil_s2polyline_layer.h:_:257e27:m:
23pIn file included from :l../src/s2/mutable_s2shape_index.h a:note: c30expanded from macro 'absl_nullable'e:

_In file included from h/usr/local/clang/include/absl/container/btree_map.h  i:257n66 | t:
#_In file included from di/usr/local/clang/include/absl/container/internal/btree.hem:fp69il:
n,In file included from e /usr/local/clang/include/absl/container/internal/container_memory.h c:ao29bn:
ssIn file included from lt/usr/local/clang/include/absl/hash/hash.h_ :n&89u,:
l In file included from lf/usr/local/clang/include/absl/hash/internal/hash.haa:bl79ls:
ee/usr/local/clang/include/absl/base/internal/endian.h ,:_
262N      :u| 27l  ^:l
 awarning: b/usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
e611
:      52  | :                       ^262note: 
 | expanded from macro 'ABSL_INTERNAL_X'i
nli  n611e |   v o i d   S t In file included from o s2/s2builderutil_s2polygon_layer.ccr :eA183B:
2SIn file included from (L../src/s2/s2builderutil_s2polygon_layer.hv_:oI40iN:
dTIn file included from *E/usr/local/clang/include/absl/container/btree_map.h R:aN66bA:
sLIn file included from l_/usr/local/clang/include/absl/container/internal/btree.h_A:nT73oT:
nRIn file included from nI/usr/local/clang/include/absl/strings/cord.huB:lU94lT:
 EIn file included from p_/usr/local/clang/include/absl/strings/internal/cordz_info.h,C: A31uP:
iT/usr/local/clang/include/absl/synchronization/mutex.hnU:tR10913E:2D26__:tB  Ywarning: v(type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])t
 h{i
 s      1091)|  | )                          ^ ,
  b /usr/local/clang/include/absl/base/nullability.ho :o 241l :  22W :a  i note: t expanded from macro 'absl_nonnull'C 
o m   m 241o  | n #( dM eu ft ie nx e*    aa bb ss\ll
__      nn| oo                                                   ^nn
nnuu/usr/local/clang/include/absl/container/internal/common.hll:ll32  :m_9uN:to ennote: xnmacro 'ABSL_INTERNAL_IF_false' defined here,u

l      l|    
                         ^32      
 | | #                     ^/usr/local/clang/include/absl/base/nullability.hd
:e241f:i22n:e  note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ IaFb_sfla_lnsoen(niufl_ls a_tNiosnfniueldl,
       .| .                     ^.
In file included from )s2/s2builderutil_s2polyline_layer.cc :_18_:
VIn file included from A../src/s2/s2builderutil_s2polyline_layer.h_:A27R:
GIn file included from S../src/s2/mutable_s2shape_index.h_:_30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h        ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.hIn file included from :s2/s2builderutil_s2polygon_layer.cc29::
18In file included from :
/usr/local/clang/include/absl/hash/hash.hIn file included from :../src/s2/s2builderutil_s2polygon_layer.h89::
40In file included from :
/usr/local/clang/include/absl/hash/internal/hash.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h79::
66:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h266::7336:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:warning: 94type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  266/usr/local/clang/include/absl/synchronization/mutex.h | :i1093n:l46i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
int 610934 | _ t  vLooiadd 6R4e(mcoovnes(tb avsoei_di*n taebrsnla_ln:o:nPneurlTlh rpe)a d{S
y      n| c                                   ^h
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | s#)d;e
f      i| n                                             ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_noIn file included from ns2/s2builderutil_s2point_vector_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_s2point_vector_layer.h_:N27o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSIn file included from Ls2/s2builderutil_s2polyline_layer.cc_:I18N:
TIn file included from E../src/s2/s2builderutil_s2polyline_layer.hR:N27A:
LIn file included from _../src/s2/mutable_s2shape_index.hX:(30t:
rIn file included from y/usr/local/clang/include/absl/container/btree_map.h_:e66m:
pIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:c69e:
,In file included from  /usr/local/clang/include/absl/container/internal/container_memory.ht:r29y:
_In file included from e/usr/local/clang/include/absl/hash/hash.hm:p89l:
aIn file included from c/usr/local/clang/include/absl/hash/internal/hash.he:_79h:
i/usr/local/clang/include/absl/base/internal/endian.hn:t270_:i27m:p lwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con  s270t |  i&n,l itnreu ev,o
i      d|    ^S
to/usr/local/clang/include/absl/container/internal/btree_container.hr:e6116:452(:v onote: iexpanded from macro 'ABSL_INTERNAL_X'd
* a  b611s | l _ n o n n u l l   pA,B SuLi_nItN6T4E_RtN AvL)_ A{T
T      R| I                          ^B
UT/usr/local/clang/include/absl/base/nullability.hE:_241C:A22P:T Unote: Rexpanded from macro 'absl_nonnull'E
D_  B241Y | (#tdheifsi)n)e,  a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
\
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2builderutil_s2polygon_layer.cc::3118::
9In file included from :../src/s2/s2builderutil_s2polygon_layer.h :40note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
   In file included from 31/usr/local/clang/include/absl/container/internal/btree.h | :#73d:
eIn file included from f/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hB:S31L:
_/usr/local/clang/include/absl/synchronization/mutex.hI:N1109T:E34R:N Awarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
IF_ t1109r | u e (eixfp_lsiactiits fMiuetde,x L.o.c.k)M aiyfb_es(aMtuitsefxi*e da
b      s| l        ^_
nullable mu)
      |                                  ^In file included from 
s2/s2builderutil_s2point_vector_layer.cc:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2builderutil_s2point_vector_layer.h257::2723:
:In file included from  ../src/s2/mutable_s2shape_index.h:note: 30expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/container/btree_map.h:  67257:
 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d624e:f3i:n ewarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
bsl_n  u624l | l a bAlBeS L__NIuNlTlEaRbNlAeL
_      X| (                      ^t
ry_emplace, try_emplace_hint_iIn file included from ms2/s2builderutil_s2polygon_layer.ccp:l18,:
 In file included from c../src/s2/s2builderutil_s2polygon_layer.ho:n40s:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.h&:,66 :
tIn file included from r/usr/local/clang/include/absl/container/internal/btree.hu:e73,:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31625:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 1117 : 34 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1117  |      ecxopnlsitc_iitt eMruatteoxrL(ohciknMta)y bAeB(SMLu_tIeNxT*E RaNbAsLl__CnOuMlMlAa)b;l
e       | m                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
, c/usr/local/clang/include/absl/container/internal/btree_container.ho:n611s:t47 :C onote: nexpanded from macro 'ABSL_INTERNAL_X'd
itio  n611& |   c o n d ) 
        |                                   ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L257_:I23N:T Enote: Rexpanded from macro 'absl_nullable'N
AL  _257A | T#TdReIfBiUnTeE _aCbAsPlT_UnRuElDl_aBbYl(et h_iNsu)l)l,a b l e 
        |                        ^ 
                  \
      |                                               ^~~~
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPIn file included from Ts2/s2builderutil_s2polygon_layer.ccU:R18E:
DIn file included from _../src/s2/s2builderutil_s2polygon_layer.hB:Y40(:
tIn file included from h/usr/local/clang/include/absl/container/btree_map.hi:s66):
)In file included from ,/usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1146 : 7 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
   \ 
1146       | |                                                     ^ 
   /usr/local/clang/include/absl/container/internal/common.h :t32h:i9s:) )note:  macro 'ABSL_INTERNAL_IF_false' defined hereA
BSL   _32E | X#CdLeUfSiInVeE _ALBOSCLK__IFNUTNECRTNIAOLN_(ImFu_)f
a      l| s      ^~~~e
(if_satisfied, ...) __VA_ARGS__
      |         ^/usr/local/clang/include/absl/synchronization/mutex.h
:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 1158s2/s2builderutil_s2point_vector_layer.cc::5318::
 In file included from ../src/s2/s2builderutil_s2point_vector_layer.hwarning: :27'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from  /usr/local/clang/include/absl/container/btree_map.h1158: | 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 628 : 3M:u twarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]x
& mu   628A | B S LA_BISNLT_EIRNNTAELR_NAATLT_RXI(BtUrTyE__eCmApPlTaUcReE,D _tBrYy(_tehmipsl)a,c
e      _| h                                                    ^~~~i
nt_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  /usr/local/clang/include/absl/synchronization/mutex.h611: | 1166 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   A B1166S | L _ IeNxTpElRiNcAiLt_ ARTeTlReIaBsUaTbEl_eCMAuPtTeUxRLEoDc_kB(YM(uttheixs*) )a,b s l _ n o n n u l l   m u ,   c o n s t   C o n d i\t
i      o| n                                                   ^&
 c/usr/local/clang/include/absl/container/internal/common.ho:n31d:)9
:       | note:                                       ^macro 'ABSL_INTERNAL_IF_true' defined here

/usr/local/clang/include/absl/base/nullability.h   :31241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   A241B | S#Ld_eIfNiTnEeR NaAbLs_lI_Fn_otnrnuuel(li f__Nsoantniuslfli
e      d| ,                     ^ 
...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2builderutil_s2polygon_layer.cc:  18628:
 | In file included from  ../src/s2/s2builderutil_s2polygon_layer.h :A40B:
SIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:I66N:
TIn file included from E/usr/local/clang/include/absl/container/internal/btree.hR:N73A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hX:(94t:
rIn file included from y/usr/local/clang/include/absl/strings/internal/cordz_info.h_:e31m:
p/usr/local/clang/include/absl/synchronization/mutex.hl:a1179c:e10,:  twarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]y
_e m1179p | l a cMeu_theixn*t _aibmspll_,n u&l&l,a btlreu em,u
_      ;| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|          ^
  629 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f icnoen satb_silt_enrualtloarb(lhei n_tN)u lAlBaSbLl_eI
N      T| E                      ^R
NAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIIn file included from Bs2/s2builderutil_s2polygon_layer.ccU:T18E:
_In file included from L../src/s2/s2builderutil_s2polygon_layer.hI:F40E:
TIn file included from I/usr/local/clang/include/absl/container/btree_map.hM:E66_:
BIn file included from O/usr/local/clang/include/absl/container/internal/btree.hU:N73D:
 In file included from {/usr/local/clang/include/absl/strings/cord.h
:      94| :
      ^~~~In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from In file included from s2/s2builderutil_s2polygon_layer.cc../src/s2/base/commandlineflags.h::1821:
:
In file included from In file included from ../src/s2/s2builderutil_s2polygon_layer.h/usr/local/clang/include/absl/flags/flag.h::4042:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/flags/internal/flag.h::6630:
:
In file included from /usr/local/clang/include/absl/base/call_once.h/usr/local/clang/include/absl/container/internal/btree.h::5373::
22:/usr/local/clang/include/absl/strings/cord.h :109warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]53
: warning:    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]53
 |       109a | bvsoli:d: oCnocpey_CfolradgT*o Satbrsiln_gn(ocnonnusltl  Cfolradg&) ;s
r      c| ,                     ^ 
st/usr/local/clang/include/absl/base/nullability.hd::241::s22t:r inote: nexpanded from macro 'absl_nonnull'g
*   a241b | s#ld_enfoinnneu lalb sdls_tn)o;n
n      u| l                                                    ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
note:       expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendIn file included from Cs2/s2builderutil_s2point_vector_layer.cco:r18d:
TIn file included from o../src/s2/s2builderutil_s2point_vector_layer.hS:t27r:
iIn file included from n../src/s2/mutable_s2shape_index.hg:(33c:
oIn file included from n../src/s2/base/commandlineflags.hs:t21 :
CIn file included from o/usr/local/clang/include/absl/flags/flag.hr:d42&:
 In file included from s/usr/local/clang/include/absl/flags/internal/flag.hr:c30,:
 /usr/local/clang/include/absl/base/call_once.hs:t96d::33::s twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ng*    a96b | s l _fnroinennudl ls tdds:t:)a;t
o      m| i                                                      ^c
<u/usr/local/clang/include/absl/base/nullability.hi:n241t:3222:_ tnote: >expanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bbsals_en_oinnntuelrln a_lN:o:nCnounltlr
o      l| W                     ^o
rd(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from In file included from s2/s2builderutil_s2point_vector_layer.cc/usr/local/clang/include/absl/container/btree_map.h::1866:
:
In file included from In file included from ../src/s2/s2builderutil_s2point_vector_layer.h/usr/local/clang/include/absl/container/internal/btree.h::2773:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/cord.h::33437:
:In file included from 47../src/s2/base/commandlineflags.h:: 21:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/flags/flag.h
:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h  :43730 | :
 /usr/local/clang/include/absl/base/call_once.h : 153 : 41 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       153  |          C a l l O n c e I m p l (ssttdd::::sattroimnigc*< uaibnstl3_2n_otn>n*u lalb sdls_tn)o;n
n      u| l                                              ^l
 c/usr/local/clang/include/absl/base/nullability.ho:n241t:r22o:l ,note: 
expanded from macro 'absl_nonnull'      
|                                         ^  
241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: In file included from warning: s2/s2builderutil_s2point_vector_layer.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h  :50427 | :
 In file included from  ../src/s2/mutable_s2shape_index.h : 33e:
xIn file included from p../src/s2/base/commandlineflags.hl:i21c:
iIn file included from t/usr/local/clang/include/absl/flags/flag.h :C42h:
uIn file included from n/usr/local/clang/include/absl/flags/internal/flag.hk:I30t:
e/usr/local/clang/include/absl/base/call_once.hr:a194t:o31r:( cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st C  o194r | di*n laibnsel _sntodn:n:ualtlo mciocr<du)i;n
t      3| 2                                       ^_
t>/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dCeofnitnreo laWbosrld_(n
o      n| n                              ^u
ll /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnullIn file included from  s2/s2builderutil_s2polygon_layer.cc_:N18o:
nIn file included from n../src/s2/s2builderutil_s2polygon_layer.hu:l40l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:In file included from 43s2/s2builderutil_s2point_vector_layer.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2builderutil_s2point_vector_layer.h
:27:
In file included from ../src/s2/mutable_s2shape_index.h  :50733 | :
 In file included from  ../src/s2/base/commandlineflags.h : 21v:
oIn file included from i/usr/local/clang/include/absl/flags/flag.hd: 42I:
nIn file included from i/usr/local/clang/include/absl/flags/internal/flag.ht:T30r:
e/usr/local/clang/include/absl/base/call_once.he:(195c:o16r:d _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
te  r195n | a l : : CoonrcdeR_efpl*a ga*b salb_snlo_nnnounlnlu ltlr efel)a;g
)       | {                                          ^

      | /usr/local/clang/include/absl/base/nullability.h               ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2builderutil_s2point_vector_layer.cc525::1835:
:In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h:warning: 27type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:33:
  In file included from 525../src/s2/base/commandlineflags.h | : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.ha:b42s:
lIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h::c30o:
r/usr/local/clang/include/absl/base/call_once.hd:_200i:n40t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l::C  o200r | dvRoeipd*  LaobwsLle_vneullClaalbllOen cceu(rarbesnlt:_:loenacfe__ f=l angu*l lapbtsrl;_
n      o| n                                  ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257f:l23a:g ,note:  expanded from macro 'absl_nullable'C
al  l257a | b#ldee&f&i nfen ,a
b      s| l                                       ^_
nul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  _note: Nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed
e      f| i                      ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                           In file included from  s2/s2builderutil_s2point_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.hC:o33r:
dIn file included from R../src/s2/base/commandlineflags.he:p21*:
 a/usr/local/clang/include/absl/flags/flag.hb:s110l:_29n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   r110e | pv)o
i      d|                                                ^S
etF/usr/local/clang/include/absl/base/nullability.hl:a257g:(23a:b snote: lexpanded from macro 'absl_nullable':
:F  l257a | g#<dTe>f*i naeb salb_snlo_nnnuulllla bfllea g_,N uclolnasbtl eT
&       | v                      ^)
 {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_In file included from ss2/s2builderutil_s2point_vector_layer.cca:t18i:
sIn file included from f../src/s2/s2builderutil_s2point_vector_layer.hi:e27d:
,In file included from  ../src/s2/mutable_s2shape_index.h.:.41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
.In file included from )s2/s2builderutil_s2point_vector_layer.cc :_18_:
VIn file included from A../src/s2/s2builderutil_s2point_vector_layer.h_:A27R:
GIn file included from S../src/s2/mutable_s2shape_index.h_:_41
:
      In file included from | ../src/s2/s2cell_id.h        ^:
43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: In file included from warning: s2/s2builderutil_s2polygon_layer.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h  :12840 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hS:t67a:
t/usr/local/clang/include/absl/container/internal/btree_container.hu:s522R:e3p:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  o522n | n u lAlB SCLl_oInNeTAEnRdNUAnLr_eXf((i)n sceornts_to;r
_      a| s             ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,241 :i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn_ei mapbls,l _cnoonnsntu l&l,  _cNoonnsntu l&l,

            | |                      ^  ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/base/nullability.h524::2573::23 : warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nullable'

  257   | 524# | d e fAiBnSeL _aIbNsTlE_RnNuAlLl_aXb(lien s_eNrutl_loarb_laes
s      i| g                      ^n
, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_oIn file included from rs2/s2builderutil_s2point_vector_layer.cc_:a18s:
sIn file included from i../src/s2/s2builderutil_s2point_vector_layer.hg:n27_:
iIn file included from m../src/s2/mutable_s2shape_index.hp:l41,:
 In file included from c../src/s2/s2cell_id.ho:n43s:
tIn file included from  ../src/s2/s1angle.h&:,28 :
&In file included from &../src/s2/s2point.h,: 27f:
aIn file included from l../src/s2/s2coder.hs:e23,:

In file included from       /usr/local/clang/include/absl/status/status.h| :  ^67
:
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/btree_container.h::149509::1352::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    149509 |  | c o n s t   c h a r *A BaSbLs_lI_NnToEnRnNuAlLl_ AMTaTkReICBhUeTcEk_FCaAiPlTSUtRrEiDn_gB(Y
(      t| h            ^i
s)),/usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s\l
_      n| o                                                   ^n
nu/usr/local/clang/include/absl/container/internal/common.hl:l32 :_9N:o nnote: nmacro 'ABSL_INTERNAL_IF_false' defined hereu
ll
         32|  |                      ^#
define ABSL_In file included from Is2/s2builderutil_s2point_vector_layer.ccN:T18E:
RIn file included from N../src/s2/s2builderutil_s2point_vector_layer.hA:L27_:
IIn file included from F../src/s2/mutable_s2shape_index.h_:f41a:
lIn file included from s../src/s2/s2cell_id.he:(43i:
fIn file included from _../src/s2/s1angle.hs:a28t:
iIn file included from s../src/s2/s2point.hf:i27e:
dIn file included from ,../src/s2/s2coder.h :.23.:
.In file included from )/usr/local/clang/include/absl/status/status.h :_67_:
V/usr/local/clang/include/absl/status/internal/status_internal.hA:_150A:R25G:S _warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |         ^
  150 |     consIn file included from ts2/s2builderutil_s2polygon_layer.cc :a18b:
sIn file included from l../src/s2/s2builderutil_s2polygon_layer.h:::40S:
tIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:u67s:
*/usr/local/clang/include/absl/container/internal/btree_container.h :a531b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
nul  l531  | s t aAtBuSsL,_ IcNoTnEsRtN AcLh_aXr(*i nasbesrlt__noorn_nauslsli gpnr,e fiinxs)e;r
t      _| o                        ^r
_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:_ inote: mexpanded from macro 'absl_nonnull'p
l,   241c | o#ndsetf i&n,e  &a&b,s lf_anlosnen,u
l      l|    ^_
No/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:
       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  511 |      In file included from  s2/s2builderutil_s2point_vector_layer.cc : 18 :
 In file included from A../src/s2/s2builderutil_s2point_vector_layer.hB:S27L:
_In file included from I../src/s2/mutable_s2shape_index.hN:T41E:
RIn file included from N../src/s2/s2cell_id.hA:L43_:
AIn file included from T../src/s2/s1angle.hT:R28I:
BIn file included from U../src/s2/s2point.hT:E27_:
CIn file included from A../src/s2/s2coder.hP:T23U:
RIn file included from E/usr/local/clang/include/absl/status/status.hD:_67B:
Y/usr/local/clang/include/absl/status/internal/status_internal.h(:t150h:i58s:) )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       150  |          c o n s t   a b s l : : S\t
a      t| u                                                   ^s
* /usr/local/clang/include/absl/container/internal/common.ha:b32s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_false' defined heren
ull    32s | t#adteufsi,n ec oAnBsStL _cIhNaTrE*R NaAbLs_lI_Fn_ofnanluslel( ipfr_esfaitxi)s;f
i      e| d                                                         ^,
 ./usr/local/clang/include/absl/base/nullability.h.:.241): 22_:_ Vnote: Aexpanded from macro 'absl_nonnull'_
AR  G241S | _#_d
e      f| i        ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status/usr/local/clang/include/absl/container/internal/btree_container.h_:i535n:t3e:r nwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
::St  a535t | u s RAeBpS*L _aIbNsTlE_RnNoAnLn_uXl(li nPsreerpta_roerT_oaMsosdiigfny,( 
i      n| s                                     ^e
rt_/usr/local/clang/include/absl/base/nullability.ho:r241_:a22s:s inote: gexpanded from macro 'absl_nonnull'n
_i  m241p | l#,d ecfoinnset  a&b,s l&_&n,o ntnruulel, 
_      N| o  ^n
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509
:      52| :                     ^ 
note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTUIn file included from Rs2/s2builderutil_s2point_vector_layer.ccE:D18_:
BIn file included from Y../src/s2/s2builderutil_s2point_vector_layer.h(:t27h:
iIn file included from s../src/s2/mutable_s2shape_index.h):)41,:
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 /usr/local/clang/include/absl/status/status.h : 732 :\29
:       | warning:                                                    ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:31  :7329 | :   note: smacro 'ABSL_INTERNAL_IF_true' defined heret
ati   c31  | c#odnesfti nset dA:B:SsLt_rIiNnTgE*R NaAbLs_lI_Fn_otnrnuuel(li fE_mspattyiSstfriiendg,( ).;.
.      )|                              ^i
f_s/usr/local/clang/include/absl/base/nullability.ha:t241i:s22f:i enote: dexpanded from macro 'absl_nonnull'

      |           ^241
 | #define absl_nonIn file included from ns2/s2builderutil_s2polygon_layer.ccu:l18l:
 In file included from _../src/s2/s2builderutil_s2polygon_layer.hN:o40n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l67
:
      | /usr/local/clang/include/absl/container/internal/btree_container.h                     ^:
535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INIn file included from Ts2/s2builderutil_s2point_vector_layer.ccE:R18N:
AIn file included from L../src/s2/s2builderutil_s2point_vector_layer.h_:X27(:
iIn file included from n../src/s2/mutable_s2shape_index.hs:e41r:
tIn file included from _../src/s2/s2cell_id.ho:r43_:
aIn file included from s../src/s2/s1angle.hs:i28g:
nIn file included from ,../src/s2/s2point.h :i27n:
sIn file included from e../src/s2/s2coder.hr:t23_:
o/usr/local/clang/include/absl/status/status.hr:_733a:s29s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
imp  l733, |   c osntsatt i&c,  c&o&n,s tt rsuted,:
:      s| t  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r
in  g536* |   a b s l _ n o n n u l l   M o v e dfFarlosmeS)t;r
i      n| g                  ~~~~~~(
);
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                            ^509
:47:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'ABSL_INTERNAL_X'22
: note:   expanded from macro 'absl_nonnull'509
 |     241  |  # d e f i n eA BaSbLs_lI_NnToEnRnNuAlLl_ A_TNToRnInBuUlTlE
_      C| A                     ^P
TURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2builderutil_s2point_vector_layer.cc  :51118 | :
 In file included from  ../src/s2/s2builderutil_s2point_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 41 :
AIn file included from B../src/s2/s2cell_id.hS:L43_:
IIn file included from N../src/s2/s1angle.hT:E28R:
NIn file included from A../src/s2/s2point.hL:_27A:
TIn file included from T../src/s2/s2coder.hR:I23B:
U/usr/local/clang/include/absl/status/status.hT:E751_:C61A:P Twarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ED_B  Y751( | t h isst)a)t)i c   u i n t p t r _ t   P o i n t e r T o R e p\(
s      t| a                                                   ^t
us/usr/local/clang/include/absl/container/internal/common.h_:i32n:t9e:r nnote: amacro 'ABSL_INTERNAL_IF_false' defined herel
::S   t32a | t#udseRfeipn*e  aAbBsSlL__nIoNnTnEuRlNlA Lr_)I;F
_      f|                                                             ^a
ls/usr/local/clang/include/absl/base/nullability.he:(241i:f22_:s anote: texpanded from macro 'absl_nonnull'i
sf  i241e | d#,d e.f.i.n)e  _a_bVsAl__AnRoGnSn_u_l
l       | _        ^N
onnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* abslIn file included from _s2/s2builderutil_s2polygon_layer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_s2polygon_layer.hl:l40 :
RIn file included from e/usr/local/clang/include/absl/container/btree_map.hp:T67o:
P/usr/local/clang/include/absl/container/internal/btree_container.ho:i538n:t23e:r (warning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                                           ^
  /usr/local/clang/include/absl/base/nullability.h538: | 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n et raubes)l;_
n      o| n                      ^n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl: 496_:N9o:n nnote: umacro 'ABSL_INTERNAL_X' defined herel
l
      |                        ^496
 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/mutable_s2shape_index.h::55241::
79In file included from :../src/s2/s2cell_id.h :43warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:  27552:
 | In file included from  ../src/s2/s2coder.h :A23B:
SL/usr/local/clang/include/absl/status/status.h_:I1031N:T42E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_X(in s1031e | ritn_loirn_ea scsoingsnt,  sitnasteurst__ionrt_earsnsailg:n:_Sitmaptlu,s R&e&p,*  &a&b,s lt_rnuoen,n uflall sSet)a;t
u      s| :                                                                              ^:
Re/usr/local/clang/include/absl/container/internal/btree_container.hp:T496o:P9o:i nnote: tmacro 'ABSL_INTERNAL_X' defined heree
r(
        496|  |                                          ^#
defi/usr/local/clang/include/absl/base/nullability.hn:e241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fXi(nFeu nacb,s lC_anlolneneu,l lK Q_uNaoln,n uMlQlu
a      l| ,                     ^ 
KValue, MValue, ...)     \
      |         ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n552u:l3l:  rwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
) {
        552|  |                                 ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | X#(dienfsienret _aobrs_la_snsoingnnu,l li n_sNeorntn_uolrl_
a      s| s                     ^i
gn_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: In file included from warning: s2/s2builderutil_s2point_vector_layer.cc'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
  In file included from 552../src/s2/mutable_s2shape_index.h | : 41 :
AIn file included from B../src/s2/s2cell_id.hS:L43_:
IIn file included from N../src/s2/s1angle.hT:E28R:
NIn file included from A../src/s2/s2point.hL:_27X:
(In file included from i../src/s2/s2coder.hn:s23e:
r/usr/local/clang/include/absl/status/status.ht:_1063o:r13_:a swarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
gn,  1063i | ncsoenrstt_ ocrh_aars*s iagbns_li_mnpoln,n u&l&l,  S&t&a,t utsrMuees,s afgaelAsseC)S;t
r      (| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509/usr/local/clang/include/absl/base/nullability.h::47241:: 22:note:  expanded from macro 'ABSL_INTERNAL_X'note: 
expanded from macro 'absl_nonnull'
    509241 |  |  # d e f i n e   a bAsBlS_Ln_oInNnTuElRlN A_LN_oAnTnTuRlIlB
U      T| E                     ^_
CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullaIn file included from bs2/s2builderutil_s2polygon_layer.cci:l18i:
tIn file included from y../src/s2/s2builderutil_s2polygon_layer.h_:u40n:
kIn file included from n/usr/local/clang/include/absl/container/btree_map.ho:w67n:
;/usr/local/clang/include/absl/container/internal/btree_container.h
:      574| :                     ^3
: warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
289:34:   note: 574expanded from macro 'absl_nullability_unknown' | 
  A  B289S | L#_dIeNfTiEnReN AaLb_sXl(_innuslelratb_iolri_tays_suingknn,o winn s_eNrutl_lo_ru_nasspseicginf_iheidn
t      _| i                                 ^m
pl, const &, &In file included from &s2/s2cap.cc,:
18      :
| In file included from   ^../src/s2/s2cap.h
:27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/base/logging.h509::2152:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
  In file included from 509/usr/local/clang/include/absl/log/internal/check_op.h | : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h :A47B:
SIn file included from L/usr/local/clang/include/absl/log/internal/structured_proto.h_:I27N:
TIn file included from E/usr/local/clang/include/absl/log/internal/proto.hR:N34A:
L/usr/local/clang/include/absl/types/span.h_:A213T:T34R:I Bwarning: Utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T
E_C  A213P | T U RuEsDi_nBgY (ctohnisst)_)p,o i n t e r   =   c o n s t   T *   a b s l _ n u\l
l      a| b                                                   ^i
li/usr/local/clang/include/absl/container/internal/common.ht:y31_:u9n:k nnote: omacro 'ABSL_INTERNAL_IF_true' defined herew
n;
         31|  |                                  ^#
de/usr/local/clang/include/absl/base/nullability.hf:i289n:e34 :A Bnote: Sexpanded from macro 'absl_nullability_unknown'L
_I  N289T | E#RdNeAfLiIn file included from _ns2/s2builderutil_s2polyline_vector_layer.ccIe:F 18_a:
tbIn file included from rs../src/s2/s2builderutil_s2polyline_vector_layer.hul:e_25(n:
iuIn file included from fl../src/s2/base/logging.h_ls:aa21bt:
iiIn file included from ls/usr/local/clang/include/absl/log/check.hif:ti37ye:
_dIn file included from u,/usr/local/clang/include/absl/log/internal/check_impl.hn :k.21n.:
o.In file included from w)/usr/local/clang/include/absl/log/internal/check_op.hn : i41_f:
N_In file included from u/usr/local/clang/include/absl/log/internal/strip.hsl:al26t_:
iuIn file included from sn/usr/local/clang/include/absl/log/internal/log_message.hfs:ip53ee:
dc
/usr/local/clang/include/absl/types/source_location.hi      :f| 113i        ^:e
19d:
       | warning:                                  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  113 | In file included from  s2/s2builderutil_s2polygon_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polygon_layer.hc:o40n:
sIn file included from t/usr/local/clang/include/absl/container/btree_map.h :c67h:
a/usr/local/clang/include/absl/container/internal/btree_container.hr:*574 :a3b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
onnul  l574  | f i lAeB_SnLa_mIeN T=E R_N_AbLu_iXl(tiinns_eFrItL_Eo(r)_)a s{s
i      g| n                  ^,
 in/usr/local/clang/include/absl/base/nullability.hs:e241r:t22_:o rnote: _expanded from macro 'absl_nonnull'a
ss  i241g | n#_dheifnitn_ei mapbls,l _cnoonnsntu l&l,  _&N&o,n
n      u| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l

      |                      ^  
575 |                   true, true, const_iteratoIn file included from rs2/s2builderutil_s2polyline_vector_layer.cc(:h18i:
nIn file included from t../src/s2/s2builderutil_s2polyline_vector_layer.h): 25A:
BIn file included from S../src/s2/base/logging.hL:_21I:
NIn file included from T/usr/local/clang/include/absl/log/check.hE:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:C21O:
MIn file included from M/usr/local/clang/include/absl/log/internal/check_op.hA:)41;:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~26
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53/usr/local/clang/include/absl/container/internal/btree_container.h:
:509/usr/local/clang/include/absl/types/source_location.h::47133:: 25:note:  expanded from macro 'ABSL_INTERNAL_X'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  509 |    133  |      c o n s t eAxBpSrL _cIoNnTsEtR NcAhLa_rA*T TaRbIsBlU_TnEo_nCnAuPlTlU RfEiDl_eB_Yn(atmhei(s)) )c,o n s t   n o e x c e p t   { 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :\22
:       | note:                                               ^~~~expanded from macro 'absl_nonnull'

  241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d574e:f3i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
b/usr/local/clang/include/absl/container/internal/btree_container.hs:l511_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N511o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBIn file included from Us2/s2builderutil_s2polyline_vector_layer.ccT:E18_:
CIn file included from A../src/s2/s2builderutil_s2polyline_vector_layer.hP:T25U:
RIn file included from E../src/s2/base/logging.hD:_21B:
YIn file included from (/usr/local/clang/include/absl/log/check.ht:h37i:
sIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h):)21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 53 :
 /usr/local/clang/include/absl/types/source_location.h : 142 : 25 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                    ^
  142/usr/local/clang/include/absl/container/internal/common.h | : 31 :c9o:n snote: tmacro 'ABSL_INTERNAL_IF_true' defined heree
xpr    31c | o#ndsetf icnhea rA*B SaLb_sIlN_TnEoRnNnAuLl_lI Ff_utnrcutei(oinf__nsaamtei(s)f iceodn,s t. .n.o)e xicfe_psta t{i
s      f| i                        ^e
d
/usr/local/clang/include/absl/base/nullability.h      :| 241        ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2builderutil_s2polygon_layer.ccf:i18n:
eIn file included from  ../src/s2/s2builderutil_s2polygon_layer.ha:b40s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l574l: 3_:N owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ull
        | 574                     ^ | 
  ABSL_INTERNAL_X(insIn file included from es2/s2builderutil_s2polyline_vector_layer.ccr:t18_:
oIn file included from r../src/s2/s2builderutil_s2polyline_vector_layer.h_:a25s:
sIn file included from i../src/s2/base/logging.hg:n21,:
 In file included from i/usr/local/clang/include/absl/log/check.hn:s37e:
rIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h_:o21r:
_In file included from a/usr/local/clang/include/absl/log/internal/check_op.hs:s41i:
gIn file included from n/usr/local/clang/include/absl/log/internal/strip.h_:h26i:
nIn file included from t/usr/local/clang/include/absl/log/internal/log_message.h_:i53m:
p/usr/local/clang/include/absl/types/source_location.hl:,150 :c40o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
&,   &150& | , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      575  |                                   c otnrsute ,c htarru*e ,a bcsoln_snto_nintuelrla tfoirl(eh_innatm)e )A
B      S| L                                       ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Cexpanded from macro 'absl_nonnull'O
MM  A);241
 |       #| d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
fin/usr/local/clang/include/absl/container/internal/btree_container.he: 511a:b47s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l511l |   _ N o n n u l l 
       A| B                     ^S
L_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))  In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 25 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :\21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                                              ^~~~:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)In file included from )s2/s2builderutil_s2polyline_vector_layer.cc,: 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 25 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h\:
41      :
| In file included from                                                    ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/log/internal/log_message.h::3271::926::  note: warning: macro 'ABSL_INTERNAL_IF_false' defined heretype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   32    | 71# | d e fLiongeM eAsBsSaLg_eI(NcToEnRsNtA Lc_hIaFr_*f aalbssel(_info_nsnautlils ffiielde,,  .i.n.t)  l_i_nVeA,_
A      R| G                         ^S
__
/usr/local/clang/include/absl/base/nullability.h      :| 241        ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2builderutil_s2polygon_layer.cce:f18i:
nIn file included from e../src/s2/s2builderutil_s2polygon_layer.h :a40b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u577l:l3 :_ Nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
nul  l577
 |        |                       ^A
BSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: In file included from expanded from macro 'ABSL_INTERNAL_X's2/s2builderutil_s2polyline_vector_layer.cc
:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h  :51125 | :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_op.hT:E41R:
NIn file included from A/usr/local/clang/include/absl/log/internal/strip.hL:_26A:
T/usr/local/clang/include/absl/log/internal/log_message.hT:R78I:B26U:T Ewarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
APT   U78R | E D _LBoYg(Mtehsissa)g)e)( c o n s t   c h a r *   a b s l _ n o n n u l l\ 
f      i| l                                                   ^e
, /usr/local/clang/include/absl/container/internal/common.hi:n32:t9 :l inote: nmacro 'ABSL_INTERNAL_IF_false' defined heree
,
         | 32                         ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eI Fa_bfsall_sneo(ninfu_lsla t_iNsofnineudl,l 
.      .| .                     ^)
 __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:In file included from 3s2/s2builderutil_s2polyline_vector_layer.cc:: 18:
warning: In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
25:
In file included from ../src/s2/base/logging.h:21  :
579In file included from  | /usr/local/clang/include/absl/log/check.h : 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hL:_21I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_op.hE:R41N:
AIn file included from L/usr/local/clang/include/absl/log/internal/strip.h_:X26(:
i/usr/local/clang/include/absl/log/internal/log_message.hn:s82e:r26t:_ owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ass   i82g | n ,  LiongsMeersts_aogre_(acsosnisgtn _chhianrt*_ iambpsll,_ n&o&n,n ucloln sfti l&e,,
       i| n  ^t
 l/usr/local/clang/include/absl/container/internal/btree_container.hi:n509e:,52
:       | note:                          ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:241  :50922 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nAnTuTlRlI B_UNToEn_nCuAlPlT
U      R| E                     ^D
_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, .In file included from .s2/s2cap.cc.:)18 :
_In file included from _../src/s2/s2cap.hV:A27_:
AIn file included from R../src/s2/base/logging.hG:S21_:
_In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37        ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26In file included from :
s2/s2builderutil_s2polygon_layer.ccIn file included from :/usr/local/clang/include/absl/log/internal/log_message.h18::
47In file included from :
../src/s2/s2builderutil_s2polygon_layer.hIn file included from :/usr/local/clang/include/absl/log/internal/structured_proto.h40::
27In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/log/internal/proto.h67:In file included from :
34s2/s2builderutil_s2polyline_vector_layer.cc/usr/local/clang/include/absl/container/internal/btree_container.h:
::18/usr/local/clang/include/absl/types/span.h579:
::In file included from 7333../src/s2/s2builderutil_s2polyline_vector_layer.h:::31 25::
warning:  In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/base/logging.hwarning: 
:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]21
:
In file included from   /usr/local/clang/include/absl/log/check.h579: | 37   :
733 In file included from  | A/usr/local/clang/include/absl/log/internal/check_impl.hcB:oS21nL:
s_In file included from tI/usr/local/clang/include/absl/log/internal/check_op.heN:xT41pE:
rRIn file included from  N/usr/local/clang/include/absl/log/internal/strip.hSA:pL26a_:
nX/usr/local/clang/include/absl/log/internal/log_message.h(<:iT119n>:s 41eM:ra tkwarning: _etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oS
rp_aan  s(119sT | i* g  naL,bo sgilMn_esnseusrlatlg_aeob&rl _eTa ospSstiinrgk nAA_lhBisSnoLt(__aAibTmsTplRl:I,:B LU&oT&gE,S_ iLcnIokFn*Es TtaI bM&sE,l_
_B      nO| oU  ^nN
nDu,/usr/local/clang/include/absl/container/internal/btree_container.hl
:l       511s| :i                              ^n52k
:) ;/usr/local/clang/include/absl/base/nullability.hnote: 
:expanded from macro 'ABSL_INTERNAL_X'      257
| :                                        ^23
  :511  | /usr/local/clang/include/absl/base/nullability.hnote:  :expanded from macro 'absl_nullable' 241
 : 22   :257   |  note: # expanded from macro 'absl_nonnull'd 
e fA  iB241nS | eL# _daIebNfsTilEn_RenN uAalLbl_saAlbT_lTneRo In_BnNUuuTllEll_ aC_bANlPoeTn
Un      Ru| lE                      ^lD

_      B| Y                     ^(
this)))                  In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h\:
25      :
| In file included from                                                    ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/check.h31:In file included from :37s2/s2cap.cc9:
::In file included from 18 /usr/local/clang/include/absl/log/internal/check_impl.h:
:note: In file included from 21macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/s2cap.h:

:In file included from 27/usr/local/clang/include/absl/log/internal/check_op.h:
   :In file included from 3141../src/s2/base/logging.h | :
:#In file included from 21d/usr/local/clang/include/absl/log/internal/strip.h:
e:In file included from f26/usr/local/clang/include/absl/log/check.hi:
:n37/usr/local/clang/include/absl/log/internal/log_message.he:
: In file included from 121A/usr/local/clang/include/absl/log/internal/check_impl.h:B:41S21:L:
_ IIn file included from warning: N/usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T:
E41R:
NIn file included from A  /usr/local/clang/include/absl/log/internal/strip.hL121:_ | I26 F :
_LIn file included from to/usr/local/clang/include/absl/log/internal/log_message.hrg:Mu47ee:
(sIn file included from is/usr/local/clang/include/absl/log/internal/structured_proto.hfa:_g27sea:
&t In file included from iT/usr/local/clang/include/absl/log/internal/proto.hso:fS34ii:
en/usr/local/clang/include/absl/types/span.hdk:,O739 n:.l21.y:.( )awarning:  btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]is
fl_:s:a  tL739io | sgSfSpiiaenndk<
*T       >| a         ^bM
salk_enSopnannu(lTl*  In file included from sas2/s2builderutil_s2polygon_layer.ccib:ns18lk:
)_In file included from ;n../src/s2/s2builderutil_s2polygon_layer.h
u:      l40| l:
                                        ^aIn file included from b
/usr/local/clang/include/absl/container/btree_map.hl:e/usr/local/clang/include/absl/base/nullability.h 67:b:
241e/usr/local/clang/include/absl/container/internal/btree_container.hg:i:22n579 ::A 3B:Snote:  Lexpanded from macro 'absl_nonnull'warning: _
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A  T
241T | R#IdBe  Uf579Ti | En _e L AIaBFbSEsLTl_I_IMnNEoT_nEBnROuNUlANlLD _,_X
N(      oi| nn                    ^ns
uelr/usr/local/clang/include/absl/base/nullability.hlt:
_257      o:| r23                     ^_:
a snote: sexpanded from macro 'absl_nullable'i
gn  ,257  | i#ndseefritn_eo ra_bassls_ingunl_lhaibnlte_ i_mNpull,l a&b&l,e 
c      o| n                      ^s
t &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 | In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 27 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37f:
aIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hs:e21,:
 In file included from t/usr/local/clang/include/absl/log/internal/check_op.hr:u41e:
,In file included from  /usr/local/clang/include/absl/log/internal/strip.hc:o26n:
sIn file included from t/usr/local/clang/include/absl/log/internal/log_message.h_:i47t:
eIn file included from r/usr/local/clang/include/absl/log/internal/structured_proto.ha:t27o:
rIn file included from (In file included from /usr/local/clang/include/absl/log/internal/proto.hhs2/s2builderutil_s2polyline_vector_layer.cc:i:34n18:
t:
/usr/local/clang/include/absl/types/span.h)In file included from : ../src/s2/s2builderutil_s2polyline_vector_layer.h740A::B2521S:
:LIn file included from  _../src/s2/base/logging.hwarning: I:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N21
T:
EIn file included from R  /usr/local/clang/include/absl/log/check.hN740:A | 37L :
_ In file included from C /usr/local/clang/include/absl/log/internal/check_impl.hO :M 21M :
A In file included from ) /usr/local/clang/include/absl/log/internal/check_op.h; :
 41       :
|  In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/clang/include/absl/log/internal/strip.h
 : 26 :
/usr/local/clang/include/absl/container/internal/btree_container.h :/usr/local/clang/include/absl/log/internal/log_message.hT511:*:158 47:a:32b :s note: lwarning: expanded from macro 'ABSL_INTERNAL_X'_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
n
ul  l  511a158 | b |  l  e   L eo ng dM )e  s ns oaAegBxeSc&Le _poItpN eT{rE
aR      tN| oA                    ^rL
<_<A/usr/local/clang/include/absl/base/nullability.h(T:vT257oR:iI23dB:*U  Tnote: aEexpanded from macro 'absl_nullable'b_
sClA  _P257nT | uU#lRdlEeaDfb_ilBneYe (  tavhb)is sl{)_
)n      )u|  l                               ^ l
 a b/usr/local/clang/include/absl/base/nullability.h l: e257  : _23 N: u  lnote:  lexpanded from macro 'absl_nullable' a
 b l  e257
 |       #| d                      ^e 
f i n e   a b s l\_
n      u| l                                              ^~~~l
able _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc/usr/local/clang/include/absl/container/internal/btree_container.h::18581:
:In file included from 3../src/s2/s2cap.h:: 27:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :58137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_op.hI:N41T:
EIn file included from R/usr/local/clang/include/absl/log/internal/strip.hN:A26L:
_In file included from X/usr/local/clang/include/absl/log/internal/log_message.h(:i47n:
sIn file included from e/usr/local/clang/include/absl/log/internal/structured_proto.hr:t27_:
oIn file included from r/usr/local/clang/include/absl/log/internal/proto.h_:a34s:
s/usr/local/clang/include/absl/types/span.hi:g794n:,8In file included from  :s2/s2builderutil_s2polyline_vector_layer.cci :n18warning: s:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]eIn file included from 
r../src/s2/s2builderutil_s2polyline_vector_layer.ht:_25o:
  rIn file included from 794_../src/s2/base/logging.h | a: s21 s:
 iIn file included from  g/usr/local/clang/include/absl/log/check.hTn:*_37 h:
aiIn file included from bn/usr/local/clang/include/absl/log/internal/check_impl.hst:l_21_i:
nmIn file included from up/usr/local/clang/include/absl/log/internal/check_op.hll:l,41a :
b&In file included from l&/usr/local/clang/include/absl/log/internal/strip.he,:  26pc:
to/usr/local/clang/include/absl/log/internal/log_message.hrn: s179At:B 35S&:L, _
warning: A      type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T| 
T  ^R
I  B179/usr/local/clang/include/absl/container/internal/btree_container.hU | :T 509E :_L52Lo:Ig FMnote: Eeexpanded from macro 'ABSL_INTERNAL_X'Ts
IsMaEg  _e509B& | O  Uo Np De ,r  a st io zr e< _<At(B wSscLih_zaIerN)_T tEn*Ro NeaAxbLcs_elAp_TtnT uR{lI
lB      aU| bT       ^lE
e_ C/usr/local/clang/include/absl/base/nullability.hvA:)P257;T:
U23      R:| E                                   ^D
note: _expanded from macro 'absl_nullable'B/usr/local/clang/include/absl/base/nullability.h
Y:(257  t:257h23 | i:#s d)note: e)expanded from macro 'absl_nullable'f,
i n   e 257   | a #b ds el f_ in nu el  l aa bb sl le _  n_ uN lu ll al ba lb\el
 e      _
| N                                                         ^u| 
l                      ^l
/usr/local/clang/include/absl/container/internal/common.ha:b31l:e9
:       | note:                       ^macro 'ABSL_INTERNAL_IF_true' defined here

   31 | #define ABSL_INTERNAL_IF_true(if_satiIn file included from ss2/s2cap.ccf:i18e:
dIn file included from ,../src/s2/s2cap.h :.27.:
.In file included from )../src/s2/base/logging.h In file included from :is2/s2builderutil_s2polyline_vector_layer.cc21f::
_18In file included from s:
/usr/local/clang/include/absl/log/check.haIn file included from :t../src/s2/s2builderutil_s2polyline_vector_layer.h37i::
s25In file included from f:
/usr/local/clang/include/absl/log/internal/check_impl.hiIn file included from :e../src/s2/base/logging.h21d::

21In file included from       :
/usr/local/clang/include/absl/log/internal/check_op.h| In file included from :        ^/usr/local/clang/include/absl/log/check.h41
::
37In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h26::
21In file included from :
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h47::
41In file included from :
/usr/local/clang/include/absl/log/internal/structured_proto.hIn file included from In file included from :/usr/local/clang/include/absl/log/internal/strip.hs2/s2builderutil_s2polygon_layer.cc27:::
2618In file included from :
:
/usr/local/clang/include/absl/log/internal/proto.hIn file included from /usr/local/clang/include/absl/log/internal/log_message.h:../src/s2/s2builderutil_s2polygon_layer.h:34:190:
40:/usr/local/clang/include/absl/types/span.h:
42:In file included from :799/usr/local/clang/include/absl/container/btree_map.h ::32warning: 67:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 
/usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]581
:  3190: |     799warning:   | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]LS
opgaMne<sc  so581an | gs et & A TBo>Sp LeM_raIakNteToCEroR<nN<sA(tLsS_tpXda(:ni:(noTss*et rrateb_asomlr&__ na(us*lsalibagsbnll,_e n iobnnesngeuirlntl
_       om| r)                               ^_(
asst/usr/local/clang/include/absl/base/nullability.hsd:i:257g::no23_s:ht irnote: neexpanded from macro 'absl_nullable'ta
_mi&  m 257po | ls#,)d )e&;f&
i,      n | ec                                         ^ o
anbs/usr/local/clang/include/absl/base/nullability.hst:l 241_&:n,22u
:l       l| note: a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'b

le     241582_ | N | #u dl el fa ib nl ee  
 a       b|  s                      ^ l
 _ n o n n u ltlr u_eNIn file included from ,os2/s2cap.cc n:fn18au:
llIn file included from sl../src/s2/s2cap.he
:,      27 | :
c                     ^In file included from o
../src/s2/base/logging.hn:s21t:
_In file included from i/usr/local/clang/include/absl/log/check.ht:e37r:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.ho:r21(:
hIn file included from i/usr/local/clang/include/absl/log/internal/check_op.hn:t41):
 In file included from A/usr/local/clang/include/absl/log/internal/strip.hB:S26L:
_In file included from I/usr/local/clang/include/absl/log/internal/log_message.hN:T47E:
RIn file included from In file included from N/usr/local/clang/include/absl/log/internal/structured_proto.hs2/s2builderutil_s2polyline_vector_layer.ccA::L2718_:
:
CIn file included from In file included from O/usr/local/clang/include/absl/log/internal/proto.h../src/s2/s2builderutil_s2polyline_vector_layer.hM::M3425A:
:
)/usr/local/clang/include/absl/types/span.hIn file included from ;:../src/s2/base/logging.h
801:      :21| 32:
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:In file included from 
 /usr/local/clang/include/absl/log/check.h:warning: 37/usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:
In file included from 509/usr/local/clang/include/absl/log/internal/check_impl.h::47  21:801:
  | In file included from note:  /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'ABSL_INTERNAL_X' :
 41 :
 In file included from    /usr/local/clang/include/absl/log/internal/strip.h509 : |  26  :
  /usr/local/clang/include/absl/log/internal/log_message.h  :  191  :  43  :     warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A 
B S L _   I 191N  | T  E  R LNToA*gL M_aeAbsTssTlaR_gIneBu&Ul TloEap_beClrAeaP tTeoUnrRd<E)<D (_nsBotYed(x:tc:heiiposts) _){b,
a       s | e                                ^& 
  (/usr/local/clang/include/absl/base/nullability.h* :a 257b :s 23l :_  n note: o expanded from macro 'absl_nullable'n 
n u   l 257l  |   #m d) e( fs it nd\e:
 :      ai| bo                                              ^~~~ss
l__bnauslel&/usr/local/clang/include/absl/container/internal/btree_container.ha :bo581ls:e)3 ):_; N
warning: u      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l| 
l                                          ^a/usr/local/clang/include/absl/container/internal/btree_container.h
b:l511/usr/local/clang/include/absl/base/nullability.he::
52241      ::|  22                      ^:note: 
 expanded from macro 'ABSL_INTERNAL_X'
note: expanded from macro 'absl_nonnull'
    511241 |  |  # d e f i n e   a bAsBlS_Ln_oInNnTuElRlN A_LN_oAnTnTuRlIlB
U      T| E                     ^_
CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insIn file included from es2/s2builderutil_s2polyline_vector_layer.ccr:t18_:
oIn file included from r../src/s2/s2builderutil_s2polyline_vector_layer.h_:a25s:
sIn file included from i../src/s2/base/logging.hg:n21,:
 In file included from i/usr/local/clang/include/absl/log/check.hn:s37e:
rIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h_:o21r:
_In file included from a/usr/local/clang/include/absl/log/internal/check_op.hs:s41i:
gIn file included from n/usr/local/clang/include/absl/log/internal/strip.h_:h26i:
n/usr/local/clang/include/absl/log/internal/log_message.ht:_306i:m3p:l ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
&, c  o306n | s t  a&b,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l509l: 52s:t dnote: :expanded from macro 'ABSL_INTERNAL_X':
uni  q509u | e _ ptr< L o g M e s s aAgBeSDLa_tIaN>T EdRaNtAaL__;A
T      T| R  ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) ,a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^\

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySinokr*_ aasbssilg_nn,o ninnuslelr ts_ionrk_,a
s      s| i                                             ^g
n_/usr/local/clang/include/absl/base/nullability.hh:i241n:t22_:i mnote: pexpanded from macro 'absl_nonnull'l
,   &241& | ,# d&e&f,i nter uaeb,s
l      _| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
nnu  l593l |   _ N o n n u l l 
        |                       ^ 
     true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::618257::6423::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nullable'

  257   | 618# | d e fAiBnSeL _aIbNsTlE_RnNuAlLl_aXb(lter y__Neumlpllaabclee,
       t| r                      ^y
_emplace_impl, const &, faIn file included from ls2/s2builderutil_s2polyline_vector_layer.ccs:e18):
;In file included from 
../src/s2/s2builderutil_s2polyline_vector_layer.h      :| 25                                                               ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/container/internal/btree_container.h21::
596In file included from :/usr/local/clang/include/absl/log/check.h9::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hmacro 'ABSL_INTERNAL_X' defined here:
21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:  41596:
 | In file included from #/usr/local/clang/include/absl/log/internal/strip.hd:e26f:
i/usr/local/clang/include/absl/log/internal/log_message.hn:e400 :A17B:S Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
NTE  R400N | A L _ X (cFounnsct,  vCoaildl*e ea,b sKlQ_unaull,l aKbVlael uceo,n s.t.&. )v ) ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | \#
d      e| f        ^i
ne absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                         In file included from  s2/s2builderutil_s2polyline_vector_layer.cc\:
18      :
| In file included from                                                    ^../src/s2/s2builderutil_s2polyline_vector_layer.h
:25:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/base/logging.h32::219:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21   :
32In file included from  | /usr/local/clang/include/absl/log/internal/check_op.h#:d41e:
fIn file included from i/usr/local/clang/include/absl/log/internal/strip.hn:e26 :
A/usr/local/clang/include/absl/log/internal/log_message.hB:S425L:_31I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_I  F425_ | f a lLsoeg(Miefs_ssaagteiFsaftiaeld(,c o.n.s.t)  c_h_aVrA*_ AaRbGsSl___n
o      n| n        ^u
ll file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2builderutil_s2polygon_layer.ccn:e18 :
aIn file included from b../src/s2/s2builderutil_s2polygon_layer.hs:l40_:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl: 619_:N63o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l
      |                        ^619
 |   ABSL_INTERNAL_X(try_emplace, tIn file included from rs2/s2builderutil_s2polyline_vector_layer.ccy:_18e:
mIn file included from p../src/s2/s2builderutil_s2polyline_vector_layer.hl:a25c:
eIn file included from _../src/s2/base/logging.hi:m21p:
lIn file included from ,/usr/local/clang/include/absl/log/check.h :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht: 21&:
,In file included from  /usr/local/clang/include/absl/log/internal/check_op.ht:r41u:
eIn file included from )/usr/local/clang/include/absl/log/internal/strip.h;:
26      :
| /usr/local/clang/include/absl/log/internal/log_message.h                                                              ^:
426:31/usr/local/clang/include/absl/container/internal/btree_container.h:: 596:warning: 9:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: macro 'ABSL_INTERNAL_X' defined here
  426 |    596  | L#odgeMfeisnsea gAeBFSaLt_aIlN(TcEoRnNsAtL _cXh(aFru*n ca,b sCla_lnloenen,u lKlQ ufaill,e ,K Vianltu el,i n.e.,.
)       |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f\i
n      e|          ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l619l: 3f:a iwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
re_  m619s | g )  AABBSSLL__IANTTTERRINBAULT_EX_(CtOrLyD_;e
m      p| l                              ^a
ce/usr/local/clang/include/absl/base/nullability.h,: 241t:r22y:_ enote: mexpanded from macro 'absl_nonnull'p
la  c241e | _#idmepfli,n ec oanbsstl _&n,o ntnruulel) ;_
N      o| n  ^n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl:
611      :| 52                     ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                    In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h\:
25      :
| In file included from                                                    ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/check.h31::379:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41   :
31In file included from  | /usr/local/clang/include/absl/log/internal/strip.h#:d26e:
f/usr/local/clang/include/absl/log/internal/log_message.hi:n436e: 36A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT  E436R | N A LL_oIgFM_etsrsuaeg(eiDfe_bsuagtFiastfaile(dc,o n.s.t. )c hiafr_*s aatbisslf_ineodn
n      u| l        ^l
 file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2builderutil_s2polygon_layer.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2builderutil_s2polygon_layer.h:40  :
241In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d67e:
f/usr/local/clang/include/absl/container/internal/btree_container.hi:n619e: 3a:b swarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
nonnu  l619l |   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:  18611:
 | In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 25 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_op.hA:L41_:
AIn file included from T/usr/local/clang/include/absl/log/internal/strip.hT:R26I:
B/usr/local/clang/include/absl/log/internal/log_message.hU:T446E:_43C:A Pwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
RED_  B446Y | ( t hLiosg)M)e,s s a g e Q u i e t l y D e b u g F a t a l ( c o n s\t
       c| h                                              ^~~~a
r* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_In file included from es2/s2builderutil_s2polyline_vector_layer.ccm:p18l:
aIn file included from c../src/s2/s2builderutil_s2polyline_vector_layer.he:,25 :
tIn file included from r../src/s2/base/logging.hy:_21e:
mIn file included from p/usr/local/clang/include/absl/log/check.hl:a37c:
eIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hi:m21p:
lIn file included from ,/usr/local/clang/include/absl/log/internal/check_op.h :&41&:
,In file included from  /usr/local/clang/include/absl/log/internal/strip.hf:a26l:
s/usr/local/clang/include/absl/log/internal/log_message.he:)454;:
38      :|                                                            ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:596:9:   454 | note:  macro 'ABSL_INTERNAL_X' defined here 
Log  M596e | s#sdaegfeiQnuei eAtBlSyLF_aItNaTlE(RcNoAnLs_tX (cFhuanrc*,  aCbaslll_eneo,n nKuQlula lf,i lKeV,a
l      u| e                                     ^,
 ./usr/local/clang/include/absl/base/nullability.h.:.241): 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l\_
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char/usr/local/clang/include/absl/container/internal/btree_container.h*: 620a:b3s:l _warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nnu  l620l |   f iAlBeS,L _iInNtT ElRiNnAeL,_
X      (| t                                     ^r
y_/usr/local/clang/include/absl/base/nullability.he:m241p:l22a:c enote: ,expanded from macro 'absl_nonnull' 
tr  y241_ | e#mdpelfaicnee_ iambpsll,_ n&o&n,n uflall s_eN)o;n
n      u| l  ^l

      | /usr/local/clang/include/absl/container/internal/btree_container.h                     ^:
611:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2builderutil_s2polyline_vector_layer.cc  :61118 | :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 25 :
 In file included from  ../src/s2/base/logging.h : 21 :
AIn file included from B/usr/local/clang/include/absl/log/check.hS:L37_:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/internal/check_op.hL:_41A:
TIn file included from T/usr/local/clang/include/absl/log/internal/strip.hR:I26B:
U/usr/local/clang/include/absl/log/internal/log_message.hT:E457_:C38A:P Twarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ED_  B457Y | ( t h i s ) ) ,                                    c o n s t   c h a\r
*       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n32o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_false' defined here 
fai   l32u | r#ed_emfsign)e
       A| B                                     ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
IF  _241f | a#ldseef(iinfe_ saabtsils_fnioendn,u l.l. ._)N o_n_nVuAl_lA
R      G| S                     ^_
_
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATIn file included from Ts2/s2builderutil_s2polyline_vector_layer.ccR:I18B:
UIn file included from T../src/s2/s2builderutil_s2polyline_vector_layer.hE:_25C:
AIn file included from P../src/s2/base/logging.hT:U21R:
EIn file included from D/usr/local/clang/include/absl/log/check.h_:B37Y:
(In file included from t/usr/local/clang/include/absl/log/internal/check_impl.hh:i21s:
)/usr/local/clang/include/absl/log/internal/check_op.h):,180 : 42 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       180  |  A B S L _ A T T R I B U T\E
_      P| U                                                   ^R
E_/usr/local/clang/include/absl/container/internal/common.hF:U31N:C9T:I Onote: Nmacro 'ABSL_INTERNAL_IF_true' defined here 
con   s31t |  #cdheafri*n ea bAsBlS_Ln_oInNnTuElRlN AMLa_kIeFC_htercukeF(aiifl_Sstartiinsgf(i
e      d| ,                                         ^ 
.../usr/local/clang/include/absl/base/nullability.h): 241i:f22_:s anote: texpanded from macro 'absl_nonnull'i
sf  i241e | d#
d      e| f        ^i
ne absl_nonnulIn file included from ls2/s2builderutil_s2polygon_layer.cc :_18N:
oIn file included from n../src/s2/s2builderutil_s2polygon_layer.hn:u40l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                     ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18  :
621In file included from  | ../src/s2/s2builderutil_s2polyline_vector_layer.h : 25A:
BIn file included from S../src/s2/base/logging.hL:_21I:
NIn file included from T/usr/local/clang/include/absl/log/check.hE:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:X21(:
t/usr/local/clang/include/absl/log/internal/check_op.hr:y181_:e25m:p lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
e,   t181r | y _ e m pcloancset_ iambpsll,: :&S&t,a ttursu*e )a;b
s      l| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
onn/usr/local/clang/include/absl/container/internal/btree_container.hu:l611l: 47s:t anote: texpanded from macro 'ABSL_INTERNAL_X'u
s, c  o611n | s t   c h a r *   a bAsBlS_Ln_oInNnTuElRlN ApLr_eAfTiTxR)I;B
U      T| E                        ^_
CA/usr/local/clang/include/absl/base/nullability.hP:T241U:R22E:D _note: Bexpanded from macro 'absl_nonnull'Y
(t  h241i | s#)d)e,f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
\      
|                            ^| 
                                              ^~~~
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/container/internal/btree_container.h:
:622/usr/local/clang/include/absl/log/internal/check_op.h::3189:: 28:warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  622   | 189  |  iAnBlSiLn_eI NcToEnRsNtA La_bXs(lt:r:yS_teamtpulsa*c ea,b stlr_yn_oenmnpullalc eA_shSitnatt_uism(pclo,n scto nasbts l&:,: Sftaaltsues,&
       s| )  ^ 
{
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                           ^611
:52:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'ABSL_INTERNAL_X'22
: note: expanded from macro 'absl_nonnull'  
611 |    241  |  # d e f i n e  AaBbSsLl__InNoTnEnRuNlAlL __ANToTnRnIuBlUlT
E      _| C                     ^A
PTURED_BY(this)),                          \
      |                                                    ^In file included from 
s2/s2builderutil_s2polyline_vector_layer.cc:18/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 32../src/s2/s2builderutil_s2polyline_vector_layer.h::925::
 In file included from ../src/s2/base/logging.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here21
:
In file included from /usr/local/clang/include/absl/log/check.h:   3732:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e193 :A21B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTER  N193A | Lc_oInFs_tf aalbssel(:i:fS_tsaattuiss*f iaebds,l _.n.o.n)n u_l_lV AA_sASRtGaSt_u_s
(      c| o        ^n
st absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheIn file included from cs2/s2builderutil_s2polygon_layer.cck:O18p:
MIn file included from e../src/s2/s2builderutil_s2polygon_layer.hs:s40a:
gIn file included from e/usr/local/clang/include/absl/container/btree_map.hB:u67i:
l/usr/local/clang/include/absl/container/internal/btree_container.hd:e624r:(3c:o nwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
 cha  r624* |   a bAsBlS_Ln_oInNnTuElRlN AeLx_pXr(tterxyt_)e;m
p      l| a                                             ^c
e,/usr/local/clang/include/absl/base/nullability.h :t241r:y22_:e mnote: pexpanded from macro 'absl_nonnull'l
ac  e241_ | h#idnetf_iinmep la,b sclo_nnsotn n&u,l lt r_uNeo,n
n      u| l  ^l

      | /usr/local/clang/include/absl/container/internal/btree_container.h                     ^:
611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTUREDIn file included from _s2/s2builderutil_s2polyline_vector_layer.ccB:Y18(:
tIn file included from h../src/s2/s2builderutil_s2polyline_vector_layer.hi:s25):
)In file included from ,../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 209 : 15 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     \209
 |        |                                                     ^c
on/usr/local/clang/include/absl/container/internal/common.hs:t31 :c9h:a rnote: *macro 'ABSL_INTERNAL_IF_true' defined here 
abs   l31_ | n#odnenfuilnle  NAeBwSSLt_rIiNnTgE(R)N;A
L      _| I              ^F
_t/usr/local/clang/include/absl/base/nullability.hr:u241e:(22i:f _note: sexpanded from macro 'absl_nonnull'a
ti  s241f | i#edde,f i.n.e. )a bisfl__snaotninsuflile d_
N      o| n        ^n
ull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:40:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMIn file included from Ms2/s2builderutil_s2polyline_vector_layer.ccA:)18;:

In file included from       ../src/s2/s2builderutil_s2polyline_vector_layer.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~25
:
In file included from ../src/s2/base/logging.h:21/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 611/usr/local/clang/include/absl/log/check.h::4737::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'ABSL_INTERNAL_X'21
:
/usr/local/clang/include/absl/log/internal/check_op.h:226  :61159 | :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       226  | AvBoSiLd_ IMNaTkEeRCNhAeLc_kAOTpTVRaIlBuUeTSEt_rCiAnPgT(UsRtEdD:_:BoYs(ttrheiasm)&) ,o s ,   c o n s t   v o i d *   a b s l _ n u l l a b\l
e       | p                                              ^~~~)
;
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplacIn file included from es2/s2builderutil_s2polyline_vector_layer.cc_:h18i:
nIn file included from t../src/s2/s2builderutil_s2polyline_vector_layer.h_:i25m:
pIn file included from l../src/s2/base/logging.h,: 21&:
&In file included from ,/usr/local/clang/include/absl/log/check.h :f37a:
lIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.he:,21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h  ^:
276:13/usr/local/clang/include/absl/container/internal/btree_container.h:: 611:warning: 52:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  276 | c  o611n | s t   v o i d *   a bAsBlS_Ln_uIlNlTaEbRlNeA Lo_pAeTrTaRtIoBrU<T<E(_sCtAdP:T:UoRsEtDr_eBaYm(&t,h
i      s| )            ^)
,  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s\l
_      n| u                                                   ^l
la/usr/local/clang/include/absl/container/internal/common.hb:l32e: 9_:N unote: lmacro 'ABSL_INTERNAL_IF_false' defined herel
abl   e32
 |       #| d                      ^e
fine ABSL_INIn file included from Ts2/s2builderutil_s2polyline_vector_layer.ccE:R18N:
AIn file included from L../src/s2/s2builderutil_s2polyline_vector_layer.h_:I25F:
_In file included from f../src/s2/base/logging.ha:l21s:
eIn file included from (/usr/local/clang/include/absl/log/check.hi:f37_:
sIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.ht:i21s:
f/usr/local/clang/include/absl/log/internal/check_op.hi:e277d:,50 :. .warning: .type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
 __  V277A | _ A R G S _ _ 
        |          ^ 
                          const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* abslIn file included from _s2/s2builderutil_s2polygon_layer.ccn:u18l:
lIn file included from a../src/s2/s2builderutil_s2polygon_layer.hb:l40e:
 In file included from o/usr/local/clang/include/absl/container/btree_map.hp:e67r:
a/usr/local/clang/include/absl/container/internal/btree_container.ht:o628r:<3<:( swarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
::os  t628r | e a mA&B,S Ls_tIdN:T:EnRuNlAlLp_tXr(_ttr)y;_
e      m| p            ^l
ac/usr/local/clang/include/absl/base/nullability.he:,257 :t23r:y _note: eexpanded from macro 'absl_nullable'm
pl  a257c | e#_dheifnitn_ei mapbls,l _&n&u,l ltarbulee, 
_      N| u  ^l
la/usr/local/clang/include/absl/container/internal/btree_container.hb:l611e:
52      :|                        ^
note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here
s2/s2builderutil_s2polyline_vector_layer.cc:18   :
31In file included from  | ../src/s2/s2builderutil_s2polyline_vector_layer.h#:d25e:
fIn file included from i../src/s2/base/logging.hn:e21 :
AIn file included from B/usr/local/clang/include/absl/log/check.hS:L37_:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hT:E21R:
N/usr/local/clang/include/absl/log/internal/check_op.hA:L292_:I13F:_ twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e(if  _292s | actoinssfti ecdh,a r.*. .a)b silf__nsoantniuslfli eodp
e      r| a        ^t
or<<(std::basiIn file included from cs2/s2builderutil_s2polygon_layer.cc_:o18s:
tIn file included from r../src/s2/s2builderutil_s2polygon_layer.he:a40m:
<In file included from c/usr/local/clang/include/absl/container/btree_map.hh:a67r:
,/usr/local/clang/include/absl/container/internal/btree_container.h :T628r:a3i:t swarning: >'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]&
,
      |             ^
  628 | /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eXf(itnrey _aebmspll_ancoen,n utlrly __eNmopnlnauclel_
h      i| n                     ^t
_impl, &&, true,In file included from 
s2/s2builderutil_s2polyline_vector_layer.cc      :| 18  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25  :
629In file included from  | ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 293 : 49c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_it  e293r | a t o r ( h i n t )   A B S L _ I N T E R N A L _ C O M M A ) ; 
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
con/usr/local/clang/include/absl/container/internal/btree_container.hs:t611 :c47h:a rnote: *expanded from macro 'ABSL_INTERNAL_X' 
abs  l611_ | n o n n u l l ) ; 
       A| B                                                ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
AT  T241R | I#BdUeTfEi_nCeA PaTbUsRlE_Dn_oBnYn(utlhli s_)N)o,n n u l l 
        |                       ^ 
                 \
      |                                               ^~~~
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed c/usr/local/clang/include/absl/container/internal/btree_container.hh:a638r:*63 :a bwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
_nonn  u638l | l ) ; 
        |                                                                ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :k22e:y _note: aexpanded from macro 'absl_nonnull'r
g<  K241> |  #&dke fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(this))
      |                                                               ^~~~
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnu/usr/local/clang/include/absl/container/internal/btree_container.hl:l648 :_7N:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll
      |                        ^648
 |       this)) ABSL_ATTRIBUTE_In file included from Ls2/s2builderutil_s2polyline_vector_layer.ccI:F18E:
TIn file included from I../src/s2/s2builderutil_s2polyline_vector_layer.hM:E25_:
BIn file included from O../src/s2/base/logging.hU:N21D:
 In file included from {/usr/local/clang/include/absl/log/check.h
:      37| :
      ^~~~In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:27:
In file included from In file included from ../src/s2/mutable_s2shape_index.hs2/s2builderutil_s2polyline_vector_layer.cc::4418:
:
In file included from In file included from ../src/s2/s2pointutil.h../src/s2/s2builderutil_s2polyline_vector_layer.h::2725:
:
In file included from ../src/s2/util/math/matrix3x3.h../src/s2/base/logging.h::27621::
5In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463  :2761 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
S2_  C463H | EACBKS_LN_EL(OdGe_tI,N TVETRyNpAeL(_0D)E)F I<N<E _"M ACKaEn_'CtH EiCnKv_eOrPs_eS.T RDIeNtGe_rEmXiTnEaRnNt( 
=       | 0^.
";/usr/local/clang/include/absl/log/internal/check_op.h
:      449| :    ^31
: note: ../src/s2/base/logging.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
37:21:   449 | note:  expanded from macro 'S2_CHECK_NE' 
ex   t37e | r#nd etfeimnpel aSt2e_ CcHoEnCsKt_ NcEh aCrH*E CaKb_sNlE_
n      o| n                    ^n
ul/usr/local/clang/include/absl/log/check.hl: 120M:a3k:e Cnote: hexpanded from macro 'CHECK_NE'e
ckO  p120S | t r iAnBgS(L _ L O\G
_      I| N                              ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22C:H Enote: Cexpanded from macro 'absl_nonnull'K
_N  E241_ | I#MdPeLf(i(nvea la1b)s,l _#nvoanln1u,l l( v_aNlo2n)n,u l#lv
a      l| 2                     ^)

      |   ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:/usr/local/clang/include/absl/log/internal/check_impl.h18::
51In file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h3::25 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL':
21:
In file included from /usr/local/clang/include/absl/log/check.h   :5137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
L/usr/local/clang/include/absl/log/internal/check_op.h_:L464O:G26_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RN  A464L | _ C H E CcKo_nOsPt( Cuhnescikg_nNeEd,  c!h=a,r *v aalb1s,l _vnaoln1n_utlelx)t;,
       v| a                         ^l
2,/usr/local/clang/include/absl/base/nullability.h :v241a:l222:_ tnote: eexpanded from macro 'absl_nonnull'x
t)  
241       | | #  ^d
efi/usr/local/clang/include/absl/log/internal/check_op.hn:e68 :a22b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
onn   u68l | l   _wNhoinlneu l(lc
o      n| s                     ^t
 char*In file included from  s2/s2builderutil_s2polyline_vector_layer.cca:b18s:
lIn file included from _../src/s2/s2builderutil_s2polyline_vector_layer.hn:u25l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from l/usr/local/clang/include/absl/log/internal/check_impl.ho:g21_:
i/usr/local/clang/include/absl/log/internal/check_op.hn:t464e:r26n:a lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
he/usr/local/clang/include/absl/base/nullability.hc:k241_:o22p:_ rnote: eexpanded from macro 'absl_nonnull's
ul  t241  |  # d e f i n e   a b\s
l      _| n                     ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l257 :_23N:o nnote: nexpanded from macro 'absl_nullable'ul
l
        | 257                     ^ | 
#definIn file included from es2/s2builderutil_s2polyline_vector_layer.cc :a18b:
sIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.h_:n25u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/log/check.h_:N37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
e/usr/local/clang/include/absl/log/internal/check_op.h
:      463| :                      ^1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25In file included from :s2/s2builderutil_s2point_vector_layer.cc :18note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
../src/s2/s2builderutil_s2point_vector_layer.h:27  :
450In file included from  | ../src/s2/mutable_s2shape_index.h : 44 :
 In file included from  ../src/s2/s2pointutil.h :x27,:
 ../src/s2/util/math/matrix3x3.hx:,276 :c5o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cha../src/s2/base/logging.hr:*37 :a21b:s lnote: _expanded from macro 'S2_CHECK_NE'n
onn   u37l | l#)d
e      f| i                        ^n
e /usr/local/clang/include/absl/base/nullability.hS:2241_:C22H:E Cnote: Kexpanded from macro 'absl_nonnull'_
NE   241C | H#EdCeKf_iNnEe
       a| b                    ^s
l_/usr/local/clang/include/absl/log/check.hn:o120n:n3u:l lnote:  expanded from macro 'CHECK_NE'_
Non  n120u | l l 
A      B| S                     ^L
_LOG_INTERNAL_CHECK_NE_In file included from Is2/s2builderutil_s2polyline_vector_layer.ccM:P18L:
(In file included from (../src/s2/s2builderutil_s2polyline_vector_layer.hv:a25l:
1In file included from )../src/s2/base/logging.h,: 21#:
vIn file included from a/usr/local/clang/include/absl/log/check.hl:137,:
 In file included from (/usr/local/clang/include/absl/log/internal/check_impl.hv:a21l:
2/usr/local/clang/include/absl/log/internal/check_op.h):,465 :#1v:a lwarning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |   ^
  465 | /usr/local/clang/include/absl/log/internal/check_impl.hA:B51S:L3_:L Onote: Gexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'_
INT   E51R | N A LA_BDSELF_ILNOEG__MIANKTEE_RCNHAELC_KC_HOEPC_KS_TORPI(NCGh_eEcXkT_ENREN,( c!o=n,s tv avlo1i,d *v aalb1s_lt_enxotn,n uvlall)2;,
       v| a^l
2_/usr/local/clang/include/absl/log/internal/check_op.ht:e449x:t31):
       | note:   ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

/usr/local/clang/include/absl/log/internal/check_op.h:  75449: | 61 :  enote: xexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP't
ern    75t | e m pAlBaStLe_ LcOoGn_sItN TcEhRaNrA*L _aCbHsElC_Kn(o:n:naublsll :M:aikmepClhiecciktO_pcSatsrti<ncgo(n s t  \c
h      a| r                              ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll  >241( |  # d e f i\n
e       | a                                                            ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
abslIn file included from _s2/s2builderutil_s2polyline_vector_layer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_s2polyline_vector_layer.hl:l25 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2builderutil_s2polyline_layer.ccnote: :expanded from macro 'absl_nonnull'18
:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h  :24127 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f30i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n70o:
nIn file included from n/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
 In file included from _/usr/local/clang/include/absl/strings/str_cat.hN:o116n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23
:
      | /usr/local/clang/include/absl/strings/numbers.h                     ^:
66:41: In file included from warning: s2/s2builderutil_s2polyline_vector_layer.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25   :
66In file included from  | ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 465 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      465  |  A BiSnLt__LtOyGp_eI*N TaEbRsNlA_Ln_oDnEnFuIlNlE _oMuAtK)E;_
C      H| E                                        ^C
K_O/usr/local/clang/include/absl/base/nullability.hP:_241S:T22R:I Nnote: Gexpanded from macro 'absl_nonnull'_
EXT  E241R | N#(dceofnisnte  vaobisdl*_ naobnsnlu_lnlo n_nNuolnln)u;l
l      
|       ^| 
                     ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char*In file included from  s2/s2builderutil_s2polyline_layer.cca:b18s:
lIn file included from _../src/s2/s2builderutil_s2polyline_layer.hn:o27n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30):

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                        ^66
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h::24170::
22In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n77e: 61a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u77l | l[ [_nNoodninsuclalr
d      ]| ]                     ^ 
bool SimpleAtof(absl::string_view str, float* absl_In file included from ns2/s2builderutil_s2polyline_vector_layer.cco:n18n:
uIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.hl: 25o:
uIn file included from t../src/s2/base/logging.h):;21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                                            ^:
37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22:/usr/local/clang/include/absl/log/internal/check_op.h :502note: :expanded from macro 'absl_nonnull'1
:   warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#de  f502i | nAeB SaLb_sLlO_Gn_oInNnTuElRlN A_L_NCoHnEnCuKl_lO
P      _| I                     ^M
PL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32In file included from :s2/s2builderutil_s2polyline_layer.cc :18note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from   ../src/s2/mutable_s2shape_index.h488: | 30 :
 In file included from i/usr/local/clang/include/absl/container/btree_map.hn:l66i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :c70o:
nIn file included from s/usr/local/clang/include/absl/container/internal/layout.ht:e198x:
pIn file included from r/usr/local/clang/include/absl/strings/str_cat.h :c116o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.ht: 23c:
h/usr/local/clang/include/absl/strings/numbers.ha:r88*: 62a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null   a88b | l[e[ nnoadmies#c#aIrmdp]l](  b o o l   S i m p l e A t o d ( a b s\l
:      :| s                               ^t
ri/usr/local/clang/include/absl/base/nullability.hn:g257_:v23i:e wnote:  expanded from macro 'absl_nullable's
tr  ,257  | d#oduebflien*e  aabbssll__nnounlnlualbll eo u_tN)u;l
l      a| b                                                             ^l
e
/usr/local/clang/include/absl/base/nullability.h      :| 241                      ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2builderutil_s2polyline_vector_layer.cci:n18e:
 In file included from a../src/s2/s2builderutil_s2polyline_vector_layer.hb:s25l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
502      :| 1                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |     In file included from  s2/s2builderutil_s2polyline_layer.cc :c18o:
nIn file included from s../src/s2/s2builderutil_s2polyline_layer.ht: 27T:
1In file included from &../src/s2/mutable_s2shape_index.h :v301:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hc:o66n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h :T702:
&In file included from  /usr/local/clang/include/absl/container/internal/layout.hv:2198,:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.ho:n116s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:h23a:
r/usr/local/clang/include/absl/strings/numbers.h*: 98a:b60s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul   l98  | e[x[pnrotdeixstc)a r{d ] ]   b o\o
l       | S                                              ^i
mp/usr/local/clang/include/absl/base/nullability.hl:e241A:t22o:b (note: aexpanded from macro 'absl_nonnull'b
sl  :241: | s#tdreifnign_ev iaebws ls_tnro,n nbuololl *_ Naobnsnlu_lnlo
n      n| u                     ^l
l out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:In file included from 112s2/s2builderutil_s2polyline_vector_layer.cc::4418::
 In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/base/logging.h:21  :
112In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 502 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 497 : 32 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      i497n | t _ tiynplei*n ea bcsoln_sntoenxnpurl lc oonustt) ;c
h      a| r                                           ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241  | n#admeef#i#nIem palb(s l _ n o n n u l l   _ N o n n u l l 
\      
|                            ^| 
                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from as2/s2builderutil_s2polyline_layer.ccb:l18e:
 In file included from _../src/s2/s2builderutil_s2polyline_layer.hN:u27l:
lIn file included from a../src/s2/mutable_s2shape_index.hb:l30e:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                      ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.hs2/s2builderutil_s2polyline_vector_layer.cc::11618:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2builderutil_s2polyline_vector_layer.h::2325:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/base/logging.h::11621::
55In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :116502 | : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      498  |              i n t   v 1 ,   i n t  avb2s,l :c:oinnstt1 2c8h*a ra*b salb_snlo_nnnounlnlu lolu te)x;p
r      t| e                                                      ^x
t)/usr/local/clang/include/absl/base/nullability.h :{241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2builderutil_s2polyline_vector_layer.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_s2polyline_vector_layer.hl:l25
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503In file included from  | s2/s2builderutil_s2polyline_layer.ccA:B18S:
LIn file included from _../src/s2/s2builderutil_s2polyline_layer.hL:O27G:
_In file included from I../src/s2/mutable_s2shape_index.hN:T30E:
RIn file included from N/usr/local/clang/include/absl/container/btree_map.hA:L66_:
CIn file included from H/usr/local/clang/include/absl/container/internal/btree.hE:C70K:
_In file included from O/usr/local/clang/include/absl/container/internal/layout.hP:_198I:
MIn file included from P/usr/local/clang/include/absl/strings/str_cat.hL:(116C:
hIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hc:k23_:
N/usr/local/clang/include/absl/strings/numbers.hE:,175 :!41=:) 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]^

/usr/local/clang/include/absl/log/internal/check_op.h  :175488 | : 32 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      488  |      i n l i n e   c o n s taebxsplr: :cuoinnstt1 2c8h*a ra*b salb_snlo_nnnuulllla bvlael unea,m ei#n#tI mbpals(e ) ; 
        |                                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 \  
241       | | #                               ^d
efi/usr/local/clang/include/absl/base/nullability.hn:e257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld e_fNionnen ualbls
l      _| n                     ^u
llable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37In file included from :
s2/s2builderutil_s2polyline_layer.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h18::
21In file included from :
../src/s2/s2builderutil_s2polyline_layer.h/usr/local/clang/include/absl/log/internal/check_op.h::27503:
:In file included from 1../src/s2/mutable_s2shape_index.h:: 30:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:66/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 489/usr/local/clang/include/absl/container/internal/btree.h::4770::
 In file included from /usr/local/clang/include/absl/container/internal/layout.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116  :
489In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 182c:o7n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
1& v  1182, |  cchoanrs*t  aTb2s&l _vn2o,n ncuolnls tR ocuhnadrT*r iapbDsolu_bnloenTnouBlulf feexrp(rdtoeuxbtl)e  {d ,   c h a\r
*       | a                                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
bu  f241f | e#rd)e;f
i      n| e      ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDouIn file included from bs2/s2builderutil_s2polyline_vector_layer.ccl:e18T:
oIn file included from B../src/s2/s2builderutil_s2polyline_vector_layer.hu:f25f:
eIn file included from r../src/s2/base/logging.h(:d21o:
uIn file included from b/usr/local/clang/include/absl/log/check.hl:e37 :
dIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :c21h:
a/usr/local/clang/include/absl/log/internal/check_op.hr:*503 :a1b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u497l:l32 :b unote: fexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'f
er);  
497       | |                                                             ^ 
in/usr/local/clang/include/absl/base/nullability.hl:i241n:e22 :c onote: nexpanded from macro 'absl_nonnull's
te  x241p | r# dceofnisnte  cahbasrl*_ naobnsnlu_lnlu l_lNaobnlneu lnla
m      e| #                     ^#
Impl(             In file included from  s2/s2builderutil_s2polyline_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_layer.h\:
27      :
| In file included from                                ^../src/s2/mutable_s2shape_index.h
:30:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h257::6623:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.h:note: 70expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/container/internal/layout.h:  198257:
 | In file included from #/usr/local/clang/include/absl/strings/str_cat.hd:e116f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23a:
b/usr/local/clang/include/absl/strings/numbers.hs:l183_:n7u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le _  N183u | lclhaabrl*e 
a      b| s                      ^l
_nonnullIn file included from  s2/s2builderutil_s2polyline_vector_layer.ccR:o18u:
nIn file included from d../src/s2/s2builderutil_s2polyline_vector_layer.hT:r25i:
pIn file included from F../src/s2/base/logging.hl:o21a:
tIn file included from T/usr/local/clang/include/absl/log/check.ho:B37u:
fIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.he:r21(:
f/usr/local/clang/include/absl/log/internal/check_op.hl:o503a:t1 :f ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ha/usr/local/clang/include/absl/log/internal/check_op.hr:*498 :a35b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
onn  u498l | l   b u f f eirn)t; 
v      1| ,      ^ 
in/usr/local/clang/include/absl/base/nullability.ht: 241v:222,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsoln_nnuolnln uelxlp r_tNeoxntn)u l{l 
        |                       ^ 
      In file included from  s2/s2builderutil_s2polyline_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_layer.h\:
27      :
| In file included from                                   ^../src/s2/mutable_s2shape_index.h
:30:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h241::6622:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.h:note: 70expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/layout.h:  198241:
 | In file included from #/usr/local/clang/include/absl/strings/str_cat.hd:e116f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23a:
b/usr/local/clang/include/absl/strings/numbers.hs:l183_:n58o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _  N183o | ncnhualrl*
       a| b                     ^s
l_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_stIn file included from rs2/s2builderutil_s2polyline_vector_layer.cc,: 18k:
FIn file included from a../src/s2/s2builderutil_s2polyline_vector_layer.hs:t25T:
oIn file included from B../src/s2/base/logging.hu:f21f:
eIn file included from r/usr/local/clang/include/absl/log/check.hS:i37z:
eIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h;:
21      :
|     ^/usr/local/clang/include/absl/log/internal/check_op.h
:504:/usr/local/clang/include/absl/base/macros.h1::251 :18warning: : type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  504 |   A251B | S L __L_OaGt_tIrNiTbEuRtNeA_L__(C(HdEiCaKg_nOoPs_eI_MiPfL((_C_hbeucikl_tLiEn,_ o<b=j)e
c      t| _^s
iz/usr/local/clang/include/absl/log/internal/check_op.he:(488O:b32j:,  note: 0expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL')
 <   N488, |   \ 
i      n| l                 ^i
ne constexpIn file included from rs2/s2builderutil_s2polyline_layer.cc :c18o:
nIn file included from s../src/s2/s2builderutil_s2polyline_layer.ht: 27c:
hIn file included from a../src/s2/mutable_s2shape_index.hr:*30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l70a:
bIn file included from l/usr/local/clang/include/absl/container/internal/layout.he: 198n:
aIn file included from m/usr/local/clang/include/absl/strings/str_cat.he:#116#:
IIn file included from m/usr/local/clang/include/absl/strings/internal/stringify_sink.hp:l23(:
 /usr/local/clang/include/absl/strings/numbers.h : 202 : 7 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      202  |  c h a r\*
       a| b                               ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'F
as  t257I | n#tdTeofBiunfef earb(siln_tn6u4l_lta bil,e  c_hNaurl*l aabblsel
_      n| o                      ^n
null buffer)In file included from 
s2/s2builderutil_s2polyline_vector_layer.cc      :| 18      ^:

In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:/usr/local/clang/include/absl/base/nullability.h25::
241In file included from :../src/s2/base/logging.h22::21 :
In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nonnull':
37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h241: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f504i:n1e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:o489n:n47u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
Non  n489u | l l 
        |                       ^ 
const T1& In file included from vs2/s2builderutil_s2polyline_layer.cc1:,18 :
cIn file included from o../src/s2/s2builderutil_s2polyline_layer.hn:s27t:
 In file included from T../src/s2/mutable_s2shape_index.h2:&30 :
vIn file included from 2/usr/local/clang/include/absl/container/btree_map.h,: 66c:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hs:t70 :
cIn file included from h/usr/local/clang/include/absl/container/internal/layout.ha:r198*:
 In file included from a/usr/local/clang/include/absl/strings/str_cat.hb:s116l:
_In file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l202 :e53x:p rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
xt)   202{ |  c h a r *\ 
a      b| s                                              ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: Fexpanded from macro 'absl_nonnull'a
st  I241n | t#TdoeBfuifnfee ra(bisnlt_6n4o_ntn uil,l  c_hNaorn*n ualbls
l      _| n                     ^o
nnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66In file included from :
s2/s2builderutil_s2polyline_vector_layer.ccIn file included from :/usr/local/clang/include/absl/container/internal/btree.h18::
70In file included from :
../src/s2/s2builderutil_s2polyline_vector_layer.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h25::
198In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h21::
116In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h37::
23In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/strings/numbers.h21::
203:/usr/local/clang/include/absl/log/internal/check_op.h5::504 :1warning: :'diagnose_if' is a clang extension [-Wgcc-compat] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  203/usr/local/clang/include/absl/log/internal/check_op.h | : 497 : 32 :A Bnote: Sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'L
_INT  E497R | N A Li_nNlEiEnDe_ McIoNn_sStIeZxEp(rb ucfofnesrt,  ckhFaars*t TaobBsulf_fneurlSliazbel)e; 
n      a| m    ^e
##/usr/local/clang/include/absl/base/macros.hI:m251p:l18(:   note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
      251  |      _ _ a t t r i b\u
t      e| _                               ^_
((/usr/local/clang/include/absl/base/nullability.hd:i257a:g23n:o snote: eexpanded from macro 'absl_nullable'_
if  (257_ | _#bdueiflitnien _aobbsjle_cntu_lsliazbel(eO b_jN,u l0l)a b<l eN
,       | \                      ^

      |                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from In file included from s2/s2builderutil_s2polyline_layer.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2builderutil_s2polyline_layer.h/usr/local/clang/include/absl/log/check.h::2737:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/check_impl.h::3021:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::50466::
1In file included from :/usr/local/clang/include/absl/container/internal/btree.h :70warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/log/internal/check_op.h198::
498In file included from :/usr/local/clang/include/absl/strings/str_cat.h35::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
23:
/usr/local/clang/include/absl/strings/numbers.h:  204498: | 7 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 in  t204  | vc1h,a ri*n ta bvs2l,_ ncoonnnsutl lc hFaars*t IanbtsTlo_Bnuofnfneurl(lu ienxtp6r4t_etx ti),  {c h a r *   a b s l _ n o n n u l l\ 
b      u| f                                  ^f
er/usr/local/clang/include/absl/base/nullability.h):
241      :| 22      ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128In file included from Ss2/s2builderutil_s2polyline_vector_layer.cci:z18e:
)In file included from ;../src/s2/s2builderutil_s2polyline_vector_layer.h
:      25| :
    ^In file included from 
../src/s2/base/logging.h:21:
/usr/local/clang/include/absl/base/macros.hIn file included from :/usr/local/clang/include/absl/log/check.h251::3718:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':

/usr/local/clang/include/absl/log/internal/check_op.h:505  :2511 | :   warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
att  r505i | bAuBtSeL___L(O(Gd_iIaNgTnEoRsNeA_Li_fC(H_E_CbKu_iOlPt_iInM_PoLb(jCehcetc_ks_iLzTe,( O<b)j
,       | 0^)
 </usr/local/clang/include/absl/log/internal/check_op.h :N488,: 32\:
       | note:                  ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  488 |   inline cIn file included from os2/s2builderutil_s2polyline_layer.ccn:s18t:
eIn file included from x../src/s2/s2builderutil_s2polyline_layer.hp:r27 :
cIn file included from o../src/s2/mutable_s2shape_index.hn:s30t:
 In file included from c/usr/local/clang/include/absl/container/btree_map.hh:a66r:
*In file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from _/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from a/usr/local/clang/include/absl/strings/str_cat.hb:l116e:
 In file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:m23e:
#/usr/local/clang/include/absl/strings/numbers.h#:I215m:p7l:(  warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      215  |  c h a r *   a b s l _\n
o      n| n                               ^u
ll/usr/local/clang/include/absl/base/nullability.h :F257a:s23t:I nnote: texpanded from macro 'absl_nullable'T
oB  u257f | f#edre(fiinnte_ taybpsel _in,u
l      l| a      ^b
le/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        241|  |                       ^#
define abslIn file included from _s2/s2builderutil_s2polyline_vector_layer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_s2polyline_vector_layer.hl:l25 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2builderutil_s2polyline_layer.cc::48918::
47In file included from :../src/s2/s2builderutil_s2polyline_layer.h :27note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h489: | 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
 In file included from T/usr/local/clang/include/absl/strings/str_cat.h1:&116 :
vIn file included from 1/usr/local/clang/include/absl/strings/internal/stringify_sink.h,: 23c:
o/usr/local/clang/include/absl/strings/numbers.hn:s216t: 49T:2 &warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
2,   c216o | n s t   c h a r *   a b s l _ n o n n u l l   e x p r t e x t )   {           \ 
        | c                                              ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dbeuffifneer )a
b      s| l                                                ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from In file included from s2/s2builderutil_s2polyline_vector_layer.cc/usr/local/clang/include/absl/container/internal/layout.h::18198:
:
In file included from In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h/usr/local/clang/include/absl/strings/str_cat.h::25116:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2123:
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/numbers.h::37217:
:In file included from 5/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
warning: /usr/local/clang/include/absl/log/internal/check_op.h'diagnose_if' is a clang extension [-Wgcc-compat]:
505:1:   217 | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.hA:B497S:L32_:I Nnote: Texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'E
RNAL  _497N | E E Di_nMlIiNn_eS IcZoEn(s
t      e| x    ^p
r /usr/local/clang/include/absl/base/macros.hc:o251n:s18t:  cnote: hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'a
r*   a251b | s l __n_ualtltarbilbeu tnea_m_e(#(#dIimapgln(o s e _ i f ( _ _ b u i l t i n _ o b j\e
c      t| _                               ^s
iz/usr/local/clang/include/absl/base/nullability.he:(257O:b23j:,  note: 0expanded from macro 'absl_nullable')
 <   257N | ,# d\e
f      i| n                 ^e
 absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nIn file included from os2/s2builderutil_s2polyline_vector_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.h :o25u:
tIn file included from )../src/s2/base/logging.h :{21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                        ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 506:note: 1expanded from macro 'absl_nonnull':
 warning:   241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#de  f506i | nAeB SaLb_sLlO_Gn_oInNnTuElRlN A_LN_oCnHnEuClKl_
O      P| _                     ^I
MPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr In file included from cs2/s2builderutil_s2polyline_layer.cco:n18s:
tIn file included from  ../src/s2/s2builderutil_s2polyline_layer.hc:h27a:
rIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:b70l:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.hn:a198m:
eIn file included from #/usr/local/clang/include/absl/strings/str_cat.h#:I116m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h(: 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 335 : 52 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       335  |   \ 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u lalbasbll:e: i_nNtu1l2l8a*b laeb
s      l| _                      ^n
onnull out)In file included from  s2/s2builderutil_s2polyline_vector_layer.cc{:
18      :
| In file included from                                                    ^../src/s2/s2builderutil_s2polyline_vector_layer.h
:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d506e:f1i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_489n:o47n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
 _N  o489n | n u l l 
        | c                     ^o
nst T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2builderutil_s2polyline_layer.cc241::1822:
:In file included from  ../src/s2/s2builderutil_s2polyline_layer.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/mutable_s2shape_index.h:  30241:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e66f:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.he: 70a:
bIn file included from s/usr/local/clang/include/absl/container/internal/layout.hl:_198n:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hn:u116l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h_:N23o:
n/usr/local/clang/include/absl/strings/numbers.hn:u340l:l53
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2builderutil_s2polyline_vector_layer.ccl:l18 :
_In file included from N../src/s2/s2builderutil_s2polyline_vector_layer.ho:n25n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullaIn file included from bs2/s2builderutil_s2polyline_layer.ccl:e18 :
nIn file included from a../src/s2/s2builderutil_s2polyline_layer.hm:e27#:
#In file included from I../src/s2/mutable_s2shape_index.hm:p30l:
(In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
\In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23                               ^:

/usr/local/clang/include/absl/strings/numbers.h:/usr/local/clang/include/absl/base/nullability.h346::25744::23 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

  257   | 346# | d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^i
nt_type*In file included from  s2/s2builderutil_s2polyline_vector_layer.cca:b18s:
lIn file included from _../src/s2/s2builderutil_s2polyline_vector_layer.hn:o25n:
nIn file included from u../src/s2/base/logging.hl:l21 :
oIn file included from u/usr/local/clang/include/absl/log/check.ht:)37 :
{In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                           ^:

/usr/local/clang/include/absl/log/internal/check_op.h:506/usr/local/clang/include/absl/base/nullability.h::1241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/log/internal/check_op.h:498  :24135 | :# dnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'f
ine   498a | b s l _ n o ninnutl lv 1_,N oinnntu lvl2
,       | c                     ^o
nst char* absl_nonnull exprtext) {           In file included from  s2/s2builderutil_s2polyline_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_layer.h\:
27      :
| In file included from                                   ^../src/s2/mutable_s2shape_index.h
:30:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h241::6622:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.h:note: 70expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/layout.h:  198241:
 | In file included from #/usr/local/clang/include/absl/strings/str_cat.hd:e116f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23a:
b/usr/local/clang/include/absl/strings/numbers.hs:l351_:n55o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _N  o351n | n u l l 
        |                       ^ 
                                absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* In file included from as2/s2builderutil_s2polygon_layer.ccb:s18l:
_In file included from n../src/s2/s2builderutil_s2polygon_layer.ho:n42n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 33e:
xIn file included from p../src/s2/base/commandlineflags.hr:t21e:
xIn file included from t/usr/local/clang/include/absl/flags/flag.h): 40{:
  /usr/local/clang/include/absl/flags/commandlineflag.h : 163 :\56
:       | warning:                                               ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22:   163 | note:  expanded from macro 'absl_nonnull' 
bo  o241l |  #PdaerfsienFer oamb(salb_snlo:n:nsutlrli n_gN_ovnineuwl lv
      a| l                     ^u
e, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr conIn file included from ss2/s2builderutil_s2polygon_layer.cct: 18c:
hIn file included from a../src/s2/s2builderutil_s2polygon_layer.hr:*42 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l33_:
nIn file included from u../src/s2/base/commandlineflags.hl:l21a:
bIn file included from l/usr/local/clang/include/absl/flags/flag.he: 40n:
a/usr/local/clang/include/absl/flags/commandlineflag.hm:e193#:#27I:m pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
      193  |      v i r t u a l   v o i d\ 
R      e| a                               ^d
(v/usr/local/clang/include/absl/base/nullability.ho:i257d:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf idnset )a bcsoln_sntu l=l a0b;l
e       | _                          ^N
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:
       | note:                       ^In file included from expanded from macro 'absl_nonnull'
s2/s2builderutil_s2polyline_layer.cc
:18  :
241In file included from  | ../src/s2/s2builderutil_s2polyline_layer.h#:d27In file included from e:
s2/s2builderutil_s2polyline_vector_layer.ccfIn file included from :i../src/s2/mutable_s2shape_index.h18n::
e30In file included from  :
../src/s2/s2builderutil_s2polyline_vector_layer.haIn file included from :b/usr/local/clang/include/absl/container/btree_map.h25s::
l66In file included from _:
../src/s2/base/logging.hnIn file included from :o/usr/local/clang/include/absl/container/internal/btree.h21n::
n70In file included from u:
/usr/local/clang/include/absl/log/check.hlIn file included from :l/usr/local/clang/include/absl/container/internal/layout.h37 ::
_198In file included from N:
/usr/local/clang/include/absl/log/internal/check_impl.ho:/usr/local/clang/include/absl/strings/str_cat.hn21:n:
223u/usr/local/clang/include/absl/log/internal/check_op.h:l:25l507:
:       1warning: | :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^ 

warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/log/internal/check_op.h223: | 498 : 35e:x pnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
cit   498H | e x ( P o i nitnete *v 1a,b siln_tn uvl2l,a bcloen svt,  cPhaadrS*p eacb sslp_enco n=n ualbls le:x:pkrNtoePxatd)) 
{       |                          ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
    \257
 |       #| d                                  ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee f_iNnuel laabbslle_
n      o| n                      ^n
ull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const chaIn file included from rs2/s2builderutil_s2polygon_layer.cc*: 18a:
bIn file included from s../src/s2/s2builderutil_s2polygon_layer.hl:_42n:
uIn file included from l../src/s2/mutable_s2shape_index.hl:a33b:
lIn file included from e../src/s2/base/commandlineflags.h :s212:
,In file included from 
/usr/local/clang/include/absl/flags/flag.h      :| 42                ^:

In file included from /usr/local/clang/include/absl/flags/internal/flag.h:/usr/local/clang/include/absl/base/nullability.h30::
257:/usr/local/clang/include/absl/base/call_once.h23::52 :24note: :expanded from macro 'absl_nullable' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #de   f52i | nset da:b:salt_onmuilcl<aubilnet 3_2N_utl>l*a balbes
l      _| n                      ^o
nnull ConIn file included from ts2/s2builderutil_s2polyline_vector_layer.ccr:o18l:
WIn file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hr:d25(:

In file included from       ../src/s2/base/logging.h| :                       ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/base/nullability.h37::
241In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h22::21 :
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
512:47  :241  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n512e |   a b s lc_onnosntn uclhla r_*N oanbnsull_ln
u      l| l                     ^a
ble s1, cIn file included from os2/s2builderutil_s2polygon_layer.ccn:s18t:
 In file included from c../src/s2/s2builderutil_s2polygon_layer.hh:a42r:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b33s:
lIn file included from _../src/s2/base/commandlineflags.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/flags/flag.hb:l42e:
 In file included from s/usr/local/clang/include/absl/flags/internal/flag.h2:,30
:
      /usr/local/clang/include/absl/base/call_once.h| :                                              ^53
:22:/usr/local/clang/include/absl/base/nullability.h :257warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
: note:    expanded from macro 'absl_nullable'53
 |     257  |  #adbesfli:n:eo nacbes_lf_lnaugl*l aabblsel __nNounlnlualbll ef
l      a| g                      ^)
;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2builderutil_s2polyline_vector_layer.cc::2218::
 In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_513n:o17n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _  N513o | n n u l lc
o      n| s                     ^t
 char* absl_nonnull exprtext);
      | In file included from                 ^s2/s2builderutil_s2polyline_layer.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2builderutil_s2polyline_layer.h::2227::
 In file included from ../src/s2/mutable_s2shape_index.hnote: :expanded from macro 'absl_nonnull'30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :24166 | :
#In file included from d/usr/local/clang/include/absl/container/internal/btree.he:f70i:
nIn file included from e/usr/local/clang/include/absl/container/internal/layout.h :a198b:
sl/usr/local/clang/include/absl/strings/str_cat.h_:n398o:n24n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
_Non  n398u | l l 
A      l| p                     ^h
In file included from as2/s2builderutil_s2polygon_layer.ccN:u18m:
(In file included from c../src/s2/s2builderutil_s2polygon_layer.ho:n42s:
tIn file included from  ../src/s2/mutable_s2shape_index.hc:h33In file included from a:
s2/s2builderutil_s2polyline_vector_layer.ccrIn file included from :*../src/s2/base/commandlineflags.h18 :a:
21bIn file included from :
s../src/s2/s2builderutil_s2polyline_vector_layer.hIn file included from l:/usr/local/clang/include/absl/flags/flag.h_25:n:
42uIn file included from :
l../src/s2/base/logging.hIn file included from l:/usr/local/clang/include/absl/flags/internal/flag.ha21:b:
30lIn file included from :
e/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/call_once.h ::c3796_:
:sIn file included from t33/usr/local/clang/include/absl/log/internal/check_impl.hr::  21 warning: :
/type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h/
: 514N:O13   L:96I  | Nwarning:  Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] (
frrui  ne514tn | idcm oesn/tsedtx: p:clahitacorim*ti )ca
<b      us| il                       ^n_
tn3u2/usr/local/clang/include/absl/base/nullability.hl_:lt257a>:b*23l :ea  bnote: Csexpanded from macro 'absl_nullable'hl
e_cn  ko257sn | tn#rudclemlfp ifbnaaels seae_bIismnlpt_len(ru
nl      al| la            ^:b
:lCe/usr/local/clang/include/absl/base/nullability.ho :n_257tN:ru23ol:ll Wanote: obexpanded from macro 'absl_nullable'rl
de(
  
      257      |  | |                       ^#                                ^d

ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef i_nNeu lalbasbll_en
o      n| n                      ^u
ll _In file included from Ns2/s2builderutil_s2polyline_vector_layer.cco:n18n:
uIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.hl:
25      :
| In file included from                      ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2builderutil_s2polygon_layer.cc/usr/local/clang/include/absl/log/internal/check_op.h::18515:
:In file included from 17../src/s2/s2builderutil_s2polygon_layer.h:: 42:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/mutable_s2shape_index.h
:33:
In file included from   ../src/s2/base/commandlineflags.h515: | 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h :c42o:
nIn file included from s/usr/local/clang/include/absl/flags/internal/flag.ht: 30c:
h/usr/local/clang/include/absl/base/call_once.ha:r97*: 18a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nu   l97l | a b l e   s 1o,n cceo_nfslta gc*h aarb*s la_bnsoln_nnuullll afbllaeg )s;2
,      
|                        ^| 
                ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::25722::23 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullable'

    In file included from 241257s2/s2builderutil_s2polyline_layer.cc |  | :##18dde:
efIn file included from if../src/s2/s2builderutil_s2polyline_layer.hni:en27 e:
a In file included from ba../src/s2/mutable_s2shape_index.hsb:ls30_l:
n_In file included from on/usr/local/clang/include/absl/container/btree_map.hnu:nl66ul:
laIn file included from lb/usr/local/clang/include/absl/container/internal/btree.h l:_e70N :
o_In file included from nN/usr/local/clang/include/absl/container/internal/layout.hnu:ul198ll:
la/usr/local/clang/include/absl/strings/str_cat.h
b:      l431| e:                     ^
15
      :|                        ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 431s2/s2builderutil_s2polyline_vector_layer.cc | : 18 :
cIn file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hn:s25t:
 In file included from c../src/s2/base/logging.hh:a21r:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.ha:b515l:e47 :d awarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
()   c515o | n s t   {c ornesttu rcnh apri*e caeb_s.ld_antual(l)a;b l}e
       s| 1              ^,
 co/usr/local/clang/include/absl/base/nullability.hn:sIn file included from 257ts2/s2builderutil_s2polygon_layer.cc: :c2318h::
a In file included from r../src/s2/s2builderutil_s2polygon_layer.hnote: *:expanded from macro 'absl_nullable' 42
a:
bIn file included from   s../src/s2/mutable_s2shape_index.hl257:_ | 33n#:
udlIn file included from el../src/s2/base/commandlineflags.hfa:ib21nl:
eeIn file included from   /usr/local/clang/include/absl/flags/flag.hasb:2s42,l:

_In file included from       n/usr/local/clang/include/absl/flags/internal/flag.h| u:                                              ^l30
l:
a/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/call_once.hb::l257111e:: 2340_::N  unote: warning: lexpanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

a  b257l |   e#111
d |       ev| f                      ^oi
inde  LaobwsLle_vneullClaalbllOen c_eN(ualblsalb:l:eo
n      c| e                      ^_
flag*In file included from  s2/s2builderutil_s2polyline_vector_layer.cca:b18s:
lIn file included from _../src/s2/s2builderutil_s2polyline_vector_layer.hn:o25n:
nIn file included from u../src/s2/base/logging.hl:l21 :
fIn file included from l/usr/local/clang/include/absl/log/check.ha:g37,:
 In file included from C/usr/local/clang/include/absl/log/internal/check_impl.ha:l21l:
a/usr/local/clang/include/absl/log/internal/check_op.hb:l516e:&17&:  fwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                                          ^516
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en oanbnsull_ln oenxnpurltle x_tN)o;n
n      u| l                ^l

      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from In file included from s2/s2builderutil_s2polygon_layer.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2builderutil_s2polygon_layer.h/usr/local/clang/include/absl/log/check.h::4237:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/check_impl.h::3321:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/base/commandlineflags.h::51821::
47In file included from :/usr/local/clang/include/absl/flags/flag.h :42warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h:30:
  518/usr/local/clang/include/absl/base/call_once.h | : 153 : 41 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t ch  a153r | *   a b sCla_lnluOlnlcaebIlmep ls(1s,t dc:o:nastto mcihca<ru*i natb3s2l__tn>u*l laabbslle_ nso2n,n
u      l| l                                              ^ 
co/usr/local/clang/include/absl/base/nullability.hn:t257r:o23l:, 
note:       expanded from macro 'absl_nullable'| 
                                        ^
  257 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  a_bNsull_lnaobnlneu
l      l|                        ^_
Nonnull
      In file included from | s2/s2builderutil_s2polyline_vector_layer.cc                     ^:
18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* In file included from as2/s2builderutil_s2polygon_layer.ccb:s18l:
_In file included from n../src/s2/s2builderutil_s2polygon_layer.hu:l42l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e33 :
sIn file included from 2../src/s2/base/commandlineflags.h,:
21      :
| In file included from                                               ^/usr/local/clang/include/absl/flags/flag.h
:42:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h257::3023:
: /usr/local/clang/include/absl/base/call_once.h:note: 194expanded from macro 'absl_nullable':
31:   257warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n194e |  ianblsiln_en usltlda:b:laet o_mNiucl<luaibnlte3
2      _| t                      ^>
* absIn file included from ls2/s2builderutil_s2polyline_vector_layer.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_s2polyline_vector_layer.hu:l25l:
 In file included from C../src/s2/base/logging.ho:n21t:
rIn file included from o/usr/local/clang/include/absl/log/check.hl:W37o:
rIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h(:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                              ^:
522:17:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
:   note: 522expanded from macro 'absl_nonnull' | 
     241  | c#odnesfti nceh aarb*s la_bnsoln_nnuolnln u_lNlo nenxuplrlt
e      x| t                     ^)
;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2builderutil_s2polygon_layer.cc22::18 :
In file included from note: ../src/s2/s2builderutil_s2polygon_layer.hexpanded from macro 'absl_nonnull':
42:
In file included from   ../src/s2/mutable_s2shape_index.h241: | 33#:
dIn file included from e../src/s2/base/commandlineflags.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/flags/flag.ha:b42s:
lIn file included from _/usr/local/clang/include/absl/flags/internal/flag.hn:o30n:
n/usr/local/clang/include/absl/base/call_once.hu:l195l: 16_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ul  l195
 |        |                       ^ 
 once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41In file included from :
s2/s2builderutil_s2polyline_layer.ccIn file included from :../src/s2/s2cell_id.h18::
43In file included from :
../src/s2/s2builderutil_s2polyline_layer.hIn file included from :../src/s2/s1angle.h27::
28In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2point.h30::
27In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s2coder.h66::
23In file included from :
/usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/status/status.h73::
1031In file included from :/usr/local/clang/include/absl/strings/cord.h42::82 :
In file included from warning: /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
 /usr/local/clang/include/absl/strings/str_format.h1031: | 380i:n43l:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t380  | ssttadt:u:ss_tirnitnegr&n aSlt:r:ASptpaetnudsFRoerpm*a ta(bsstld_:n:osntnruilnlg *S taabtsuls_:n:oRnenpuTlolP odisntt,e
r      (| 
                                          ^      
|                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2builderutil_s2polyline_layer.cc:: 18:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2builderutil_s2polyline_layer.h
:27:
  In file included from 241../src/s2/mutable_s2shape_index.h | :#30d:
eIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:n66e:
 In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s73l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n82n:
uIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl: 23_:
NIn file included from o/usr/local/clang/include/absl/crc/crc32c.hn:n32u:
l/usr/local/clang/include/absl/strings/str_format.hl:
440      :| 24                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:In file included from 20s2/s2builderutil_s2polygon_layer.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2builderutil_s2polygon_layer.h
:42:
In file included from ../src/s2/mutable_s2shape_index.h  :46941 | :
iIn file included from n../src/s2/s2cell_id.ht: 43S:
NIn file included from P../src/s2/s1angle.hr:i28n:
tIn file included from F../src/s2/s2point.h(:c27h:
aIn file included from r../src/s2/s2coder.h*: 23a:
b/usr/local/clang/include/absl/status/status.hs:l1063_:n13o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l o u1063t | pcuotn,s ts tcdh:a:rs*i zaeb_stl _snioznen,u
l      l|                     ^S
ta/usr/local/clang/include/absl/base/nullability.ht:u241s:M22e:s snote: aexpanded from macro 'absl_nonnull'g
eA  s241C | S#tdre(f
i      n| e            ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.hIn file included from :s2/s2cap.cc32::
18:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :../src/s2/s2cap.h867::2760:
:In file included from  ../src/s2/base/logging.h:warning: 21:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :86721 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.he:x41p:
lIn file included from i/usr/local/clang/include/absl/log/internal/strip.hc:i26t:
 /usr/local/clang/include/absl/log/internal/log_message.hF:o71r:m26a:t Swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
k(st   r71_ | f o rLmoagtM_eisnstaegren(aclo:n:sFto rcmhaatrS*i nakbIsmlp_ln*o nanbuslll_ nfoinlneu,l li nst) 
l      i| n                                                           ^e
,
      /usr/local/clang/include/absl/base/nullability.h| :                         ^241
:22: /usr/local/clang/include/absl/base/nullability.h:note: 241expanded from macro 'absl_nonnull':
22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormaIn file included from ts2/s2cap.ccS:i18n:
kIn file included from I../src/s2/s2cap.hm:p27l:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
sIn file included from i/usr/local/clang/include/absl/log/internal/check_op.hn:k41_:
;In file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26                                       ^:

/usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/base/nullability.h78::24126::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241    | 78# | d e fLiongeM easbssalg_en(ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(conIn file included from ss2/s2cap.cct: 18C:
oIn file included from r../src/s2/s2cap.hd:R27e:
pIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 /usr/local/clang/include/absl/log/internal/check_op.hr:e451p:)1;:
       | warning:                                               ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h  :451241 | :A22B:S Lnote: _expanded from macro 'absl_nonnull'L
OG  _241I | N#TdEeRfNiAnLe_ DaEbFsIlN_En_oMnAnKuEl_lC H_ENCoKn_nOuPl_lS
T      R| I                     ^N
G_EXTERIn file included from Ns2/s2builderutil_s2polyline_layer.cc(:b18o:
oIn file included from l)../src/s2/s2builderutil_s2polyline_layer.h;
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |  : 27e:
xIn file included from t../src/s2/mutable_s2shape_index.he:r30n:
 In file included from t/usr/local/clang/include/absl/container/btree_map.he:m66p:
lIn file included from a/usr/local/clang/include/absl/container/internal/btree.ht:e73 :
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s86t:
 /usr/local/clang/include/absl/strings/cord_analysis.hc:h50a:r49*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no   n50n | uslilz eM_atk eGCehteMcokrOepPSrterciinsge(M e m o\r
y      U| s                              ^a
ge(/usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  Cnote: oexpanded from macro 'absl_nonnull'r
d  241R | e#pd*e faibnsel _anbosnln_unloln nruelpl) ;_
N      o| n                                                ^n
ull/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2cap.cci:n18e:
 In file included from a../src/s2/s2cap.hb:s27l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
451      :| 1                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |      In file included from  s2/s2builderutil_s2polyline_layer.ccx:,18 :
xIn file included from ,../src/s2/s2builderutil_s2polyline_layer.h :c27o:
nIn file included from s../src/s2/mutable_s2shape_index.ht: 30c:
hIn file included from a/usr/local/clang/include/absl/container/btree_map.hr:*66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l73_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n86u:
l/usr/local/clang/include/absl/strings/cord_analysis.hl:)56
:      56| :                        ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:    56 | note: sexpanded from macro 'absl_nonnull'i
ze  _241t |  #GdeetfEisntei maabtseld_FnaoinrnSuhlalr e_MNeomnonruylUls
a      g| e                     ^(
const CordRep* absl_nonnull rep);
      | In file included from                                                        ^s2/s2cap.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2cap.h241::2722:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e452 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u452l | lA B_SNLo_nLnOuGl_lI
N      T| E                     ^R
NAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2builderutil_s2polygon_layer.ccd:e18f:
iIn file included from n../src/s2/s2builderutil_s2polygon_layer.he: 42a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_44n:
oIn file included from n../src/s2/s2pointutil.hn:u27l:
l ../src/s2/util/math/matrix3x3.h_:N276o:n5n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                      ^
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:42:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2cap.ccn:n18u:
lIn file included from l../src/s2/s2cap.h
:      27| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckIn file included from ss2/s2cell_id.cct:r18c:
mIn file included from p../src/s2/s2cell_id.ht:r32u:
eIn file included from I/usr/local/clang/include/absl/hash/hash.hm:p89l:
(In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h      :| 79            ^:

In file included from /usr/local/clang/include/absl/base/internal/endian.h:26/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/base/internal/unaligned_access.h::2365:: 36:note:  expanded from macro 'absl_nullable'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  257 | #   d65e | fiinnlei naeb svlo_indu lUlnaabllieg n_eNduSltloarbel6e4
(      v| o                      ^i
d* absIn file included from ls2/s2cap.cc_:n18o:
nIn file included from n../src/s2/s2cap.hu:l27l:
 In file included from p../src/s2/base/logging.h,: 21u:
iIn file included from n/usr/local/clang/include/absl/log/check.ht:6374:
_In file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :v21):
 /usr/local/clang/include/absl/log/internal/check_op.h{:
512      :| 17                                   ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:   512 | note:  expanded from macro 'absl_nonnull' 
    241c | o#ndsetf icnhea ra*b salb_snlo_nnnuulllla b_lNeo nsn1u,l lc
o      n| s                     ^t
 char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2cell_id.ccs2/s2cap.cc::1818:
:
In file included from In file included from ../src/s2/s2cell_id.h../src/s2/s2cap.h::3227:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/base/logging.h::8921:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/log/check.h::7937:
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/log/internal/check_impl.h::16021::
36/usr/local/clang/include/absl/log/internal/check_op.h:: 522:warning: 17:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160   | 522i | n l i n ec ounisntt 1c6h_atr *L oaabds1l6_(ncoonnnsutl lv oeixdp*r taebxstl)_;n
o      n| n                ^u
ll/usr/local/clang/include/absl/base/nullability.h :p241): 22{:
       | note:                                    ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2point_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2point_vector_layer.h:28:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)In file included from )s2/s2cell_id.cc
:      18| :
                                                    ^~~~In file included from 
../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/container/internal/raw_hash_set.h :2692note: :expanded from macro 'absl_nonnull'58
:   warning: 241 | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from #
s2/s2builderutil_s2polyline_layer.ccd:e18f:
 iIn file included from 2692n../src/s2/s2builderutil_s2polyline_layer.h | e:  27 a:
 bIn file included from  s../src/s2/mutable_s2shape_index.h l: _30cn:
ooIn file included from nn/usr/local/clang/include/absl/container/btree_map.hsn:tu66 l:
TlIn file included from & /usr/local/clang/include/absl/container/internal/btree.h _:vN73ao:
lnIn file included from un/usr/local/clang/include/absl/strings/cord.heu: l94Al:
B
In file included from S      /usr/local/clang/include/absl/strings/internal/cordz_info.hL| :_                     ^31I
:
NT/usr/local/clang/include/absl/synchronization/mutex.hE:R489N:A14L:_ Awarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
RIBU  T489E | _ C A P T U RvEoDi_dB Y((*tahbissl)_)n
u      l| l                                                         ^~~~a
ble inIn file included from vs2/s2cell_id.cca:r18i:
aIn file included from n../src/s2/s2cell_id.ht:)32(:
vIn file included from o/usr/local/clang/include/absl/hash/hash.hi:d89*:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
_/usr/local/clang/include/absl/base/internal/endian.hn:u258l:l36a:b iwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ty_  u258n | kinnolwinn)e, 
u      i| n             ^t
32_t/usr/local/clang/include/absl/base/nullability.h :L257o:a23d:3 2note: (expanded from macro 'absl_nullable'c
on  s257t |  #vdoeifdi*n ea basbls_ln_onnunlullalb lpe)  _{N
u      l| l                                   ^a
bl/usr/local/clang/include/absl/base/nullability.he:
241      :| 22                      ^:
 note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2builderutil_s2polyline_layer.cc | :#18d:
eIn file included from f../src/s2/s2builderutil_s2polyline_layer.hi:n27e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 73_:
NIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                     ^/usr/local/clang/include/absl/synchronization/mutex.h
:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)In file included from (s2/s2cell_id.ccv:o18i:
dIn file included from *../src/s2/s2cell_id.h :a32b:
sIn file included from l/usr/local/clang/include/absl/hash/hash.h_:n89u:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.ha:b79i:
l/usr/local/clang/include/absl/base/internal/endian.hi:t262y:_27u:n kwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn)  ,262
 |       i| n                                            ^l
in/usr/local/clang/include/absl/base/nullability.he: 289v:o34i:d  note: Sexpanded from macro 'absl_nullability_unknown't
or  e2893 | 2#(dveofiidn*e  aabbssll__nnou/usr/local/clang/include/absl/container/internal/raw_hash_set.hnl:nl2734ua:bl65il:l  ipwarning: t,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]y 
_uuinnkt n32734o2 | w_ nt    _v N) u  l{ l
 _       u|  n                          ^ s
 p e/usr/local/clang/include/absl/base/nullability.h c: i241 f: i22 e:Td &
note: &      expanded from macro 'absl_nonnull' | 
v                                 ^a
  l241u | e# dAeBfSiLn_eI NaTbEsIn file included from Rls2/s2builderutil_s2polyline_layer.ccN_:An18Lo:
_nIn file included from An../src/s2/s2builderutil_s2polyline_layer.hTu:Tl27Rl:
I In file included from B_../src/s2/mutable_s2shape_index.hUN:To30En:
_nIn file included from Cu/usr/local/clang/include/absl/container/btree_map.hAl:Pl66T
:
U      In file included from R| /usr/local/clang/include/absl/container/internal/btree.hE                     ^:D
73_:
BIn file included from Y/usr/local/clang/include/absl/strings/cord.h(:t94h:
iIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.h):)31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                                                                ^~~~:
490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_In file included from us2/s2cell_id.ccn:k18n:
oIn file included from w../src/s2/s2cell_id.hn: 32a:
rIn file included from g/usr/local/clang/include/absl/hash/hash.h):;89
:
      In file included from | /usr/local/clang/include/absl/hash/internal/hash.h            ^:
79:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/internal/endian.h::289266::3436::  note: warning: expanded from macro 'absl_nullability_unknown'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  289 |   #266d | eifnilnien ea busiln_tn6u4l_lta bLiolaidt6y4_(ucnoknnsotw nv o_iNdu*l la_busnls_pneocninfuileld 
p      )|                                   ^{

      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2builderutil_s2polyline_layer.cci:n18e:
 In file included from a../src/s2/s2builderutil_s2polyline_layer.hb:s27l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 66_:
NIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n73u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* abIn file included from ss2/s2cell_id.ccl:_18n:
uIn file included from l../src/s2/s2cell_id.hl:a32b:
lIn file included from e/usr/local/clang/include/absl/hash/hash.h :n89a:
mIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h):;79
:
      | /usr/local/clang/include/absl/base/internal/endian.h                                  ^:
270:27/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
  270   | 257i | n#ldienfei nveo iadb sSlt_onruel6l4a(bvloei d_*N ualblsalb_lneo
n      n| u                      ^l
l p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2builderutil_s2polyline_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_s2polyline_layer.h
:      27| :
                     ^In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2cell_id.ccb:s18l:
_In file included from n../src/s2/s2cell_id.hu:l32l:
aIn file included from b/usr/local/clang/include/absl/hash/hash.hl:e89 :
_In file included from N/usr/local/clang/include/absl/hash/internal/hash.hu:l89l:
aIn file included from b/usr/local/clang/include/absl/numeric/int128.hl:e41
:
      | /usr/local/clang/include/absl/types/compare.h                      ^:
78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
In file included from s2/s2builderutil_s2polyline_layer.cc:   1878:
 | In file included from  ../src/s2/s2builderutil_s2polyline_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h_:_30a:
tIn file included from t/usr/local/clang/include/absl/container/btree_map.hr:i66b:
uIn file included from t/usr/local/clang/include/absl/container/internal/btree.he:_73_:
(In file included from (/usr/local/clang/include/absl/strings/cord.he:n94a:
bIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.he:_31i:
f/usr/local/clang/include/absl/synchronization/mutex.h(:n923 :=48=:  0warning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
"On  l923y |   l i t e r a l   ` 0 `   i s   a l l o w e d . " ) ) )   { }c
o      n| s                     ^t
 Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable trIn file included from es2/s2cell_id.cce:(18):
 In file included from c../src/s2/s2cell_id.ho:n32s:
tIn file included from ;/usr/local/clang/include/absl/hash/hash.h
:      89| :
                                  ^In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h:90/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/strings/string_view.h::2353:: 54:note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
257 | #de   f53i | nceo nasbtselx_pnru lsltarbilneg __vNiuelwl aNbullel
S      a| f                      ^e
StringView(constIn file included from  s2/s2builderutil_s2polyline_layer.ccc:h18a:
rIn file included from *../src/s2/s2builderutil_s2polyline_layer.h :a27b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.ha:b66l:
eIn file included from  /usr/local/clang/include/absl/container/internal/btree.hp:)73 :
{/usr/local/clang/include/absl/strings/cord.h
:      938| :                                                     ^35
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
257:23:   938note:  | expanded from macro 'absl_nullable' 
     257a | b#sdle:f:icnoer da_bisnlt_enrunlalla:b:lCeo r_dNRuelpl*a balbes
l      _| n                      ^o
nnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const In file included from Cs2/s2cap.cco:r18d:
RIn file included from e../src/s2/s2cap.hp:*27 :
aIn file included from b../src/s2/base/logging.hs:l22_:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209a:
bIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.he: 20o:
lIn file included from d/usr/local/clang/include/absl/log/absl_vlog_is_on.h_:r63e:
p,/usr/local/clang/include/absl/log/internal/vlog_config.h
:      49| :                                   ^37
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
:23: note:    expanded from macro 'absl_nullable'49
 | i  n257t |  #Rdeegfiisntee raAbnsdlI_nniutlilaalbilzee (_VNLuolglSaibtlee*
       a| b                      ^s
l_nonnullIn file included from  s2/s2builderutil_s2polyline_layer.ccv:)18;:

In file included from       ../src/s2/s2builderutil_s2polyline_layer.h| :                                    ^27
:
In file included from ../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2266::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'absl_nonnull'73
:
/usr/local/clang/include/absl/strings/cord.h  :241979 | :#30d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b979s | l _ n o n n u l l   _ N o n n u l l 
        | C                     ^o
rdRep* absl_nonnull rep, const CordzIn file included from Us2/s2cap.ccp:d18a:
tIn file included from e../src/s2/s2cap.hS:c27o:
pIn file included from e../src/s2/base/logging.h&: 22s:
cIn file included from o/usr/local/clang/include/absl/log/log.hp:e209,:

In file included from       /usr/local/clang/include/absl/log/internal/log_impl.h| :                             ^20
:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/base/nullability.h::63241:
:22/usr/local/clang/include/absl/log/internal/vlog_config.h:: 63:note: 43expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de   f63i | n e  eaxbpslli_cniotn ncuolnls t_eNxopnrn uVlLlo
g      S| i                     ^t
e(const char* absl_noIn file included from ns2/s2builderutil_s2polyline_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_s2polyline_layer.hf:)27
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                          ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24166::
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :73note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:982:  39241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin  e982  | a b s l _vnooindn uAlplp e_nNdoTnrneuelTlo
I      n| l                     ^i
ned(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20In file included from :
s2/s2builderutil_s2polyline_layer.ccIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h18::
63In file included from :
../src/s2/s2builderutil_s2polyline_layer.h:/usr/local/clang/include/absl/log/internal/vlog_config.h27::
96In file included from :../src/s2/mutable_s2shape_index.h60::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:   7396:
 | /usr/local/clang/include/absl/strings/cord.h : 984f:r36i:e nwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
int   l984o | g _ i n tveorinda lA:p:pReengdiTsrteeerTAonTdrIenei(tCioarldiRzeep(*V LaobgsSli_tneo*n naublsll _tnroenen,u lMle tvh)o;d
I      d| e                                                           ^n
ti/usr/local/clang/include/absl/base/nullability.hf:i241e:r22 :m enote: texpanded from macro 'absl_nonnull'h
od  )241; | 
#      d| e                                   ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_noIn file included from ns2/s2cap.ccn:u18l:
lIn file included from  ../src/s2/s2cap.ht:r27e:
eIn file included from ,../src/s2/base/logging.h :M22e:
tIn file included from h/usr/local/clang/include/absl/log/log.ho:d209I:
dIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.hn:t20i:
fIn file included from i/usr/local/clang/include/absl/log/absl_vlog_is_on.he:r63 :
m/usr/local/clang/include/absl/log/internal/vlog_config.he:t119h:o15d:) ;warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                    ^
  /usr/local/clang/include/absl/base/nullability.h119: | 241 : 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo ncnounlslt  _fNiolnen_u;l
l      
|                     ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2builderutil_s2polyline_layer.cce: 18a:
bIn file included from s../src/s2/s2builderutil_s2polyline_layer.hl:_27n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l73l:

/usr/local/clang/include/absl/strings/cord.h      :| 989                     ^:
31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2cell_index.ccn:n18u:
lIn file included from l../src/s2/s2cell_index.h :_26N:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                     ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull pIn file included from )s2/s2builderutil_s2polyline_vector_layer.cc :{18
:
      In file included from | ../src/s2/s2builderutil_s2polyline_vector_layer.h                                   ^:
27:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.h::30241:
:In file included from 22/usr/local/clang/include/absl/container/btree_map.h:: 66note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:69  :
241In file included from  | /usr/local/clang/include/absl/container/internal/container_memory.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/hash/hash.hn:e89 :
aIn file included from b/usr/local/clang/include/absl/hash/internal/hash.hs:l79_:
nIn file included from o/usr/local/clang/include/absl/base/internal/endian.hn:n26u:
l/usr/local/clang/include/absl/base/internal/unaligned_access.hl: 57_:N36o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                         ^57
 | inline void UnalignedStore16(void* absl_nonnull p, uint16_tIn file included from  s2/s2cell_index.ccv:)18 :
{In file included from 
../src/s2/s2cell_index.h      :| 26                                   ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:/usr/local/clang/include/absl/base/nullability.h43::
241In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h22::19 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:57:
  In file included from 241/usr/local/clang/include/absl/hash/hash.h | :#89d:
eIn file included from f/usr/local/clang/include/absl/hash/internal/hash.hi:n79e:
 /usr/local/clang/include/absl/base/internal/endian.ha:b164s:l27_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   164_ | Nionnlniunlel 
v      o| i                     ^d
 Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2builderutil_s2polyline_vector_layer.cc#:d18e:
fIn file included from i../src/s2/s2builderutil_s2polyline_vector_layer.hn:e27 :
aIn file included from ../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 69_:
NIn file included from o/usr/local/clang/include/absl/container/internal/container_memory.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/hash/hash.h
:      89| :
                     ^In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnulIn file included from ls2/s2cell_index.cc :p18,:
 In file included from u../src/s2/s2cell_index.hi:n26t:
3In file included from 2/usr/local/clang/include/absl/container/flat_hash_set.h_:t43 :
vIn file included from )/usr/local/clang/include/absl/container/hash_container_defaults.h :{19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h                                   ^:
57:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/hash/hash.h::24189::
22In file included from :/usr/local/clang/include/absl/hash/internal/hash.h :note: 79expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/base/internal/endian.h:  168241: | 36#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a168b | siln_lnionnen uuliln t_3N2o_ntn uLlola
d      3| 2                     ^(
const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2builderutil_s2polyline_vector_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.h :_27N:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66                     ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignIn file included from es2/s2cell_index.ccd:S18t:
oIn file included from r../src/s2/s2cell_index.he:6264:
(In file included from v/usr/local/clang/include/absl/container/flat_hash_set.ho:i43d:
*In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o57n:
nIn file included from u/usr/local/clang/include/absl/hash/hash.hl:l89 :
pIn file included from ,/usr/local/clang/include/absl/hash/internal/hash.h :79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27u:i nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]6
4_t   v172) |  i{n
l      i| n                                   ^e
 v/usr/local/clang/include/absl/base/nullability.ho:i241d: 22S:t onote: rexpanded from macro 'absl_nonnull'e
32  (241v | o#idde*f ianbes la_bnsoln_nnuolnln upl,l  u_iNnotn3n2u_ltl 
v      )|                       ^{

      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p)In file included from  s2/s2builderutil_s2polyline_vector_layer.cc{:
18      :
| In file included from                                    ^../src/s2/s2builderutil_s2polyline_vector_layer.h
:27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h::24130::
22In file included from :/usr/local/clang/include/absl/container/btree_map.h :note: 66expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/btree.h  :24169 | :
#In file included from d/usr/local/clang/include/absl/container/internal/container_memory.he:f29i:
nIn file included from e/usr/local/clang/include/absl/hash/hash.h :a89b:
sIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h_:n79o:
nn/usr/local/clang/include/absl/base/internal/endian.hu:l160l: 36_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
        160|  |                      ^i
nline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^In file included from 
s2/s2cell_index.cc:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2cell_index.h241::2622:
:In file included from  /usr/local/clang/include/absl/container/flat_hash_set.hnote: :expanded from macro 'absl_nonnull'43
:
In file included from   /usr/local/clang/include/absl/container/hash_container_defaults.h241: | 19#:
dIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hf:i57n:
eIn file included from  /usr/local/clang/include/absl/hash/hash.ha:b89s:
lIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hn:o79n:
n/usr/local/clang/include/absl/base/internal/endian.hu:l254l: 27_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  
254       | | i                     ^n
line void Store16(void* absl_nonnull p, uint16_t v) {
      | In file included from                           ^s2/s2builderutil_s2polyline_vector_layer.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h241::2722:
:In file included from  ../src/s2/mutable_s2shape_index.h:note: 30expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/btree_map.h  :24166 | :
#In file included from d/usr/local/clang/include/absl/container/internal/btree.he:f69i:
nIn file included from e/usr/local/clang/include/absl/container/internal/container_memory.h :a29b:
sIn file included from l/usr/local/clang/include/absl/hash/hash.h_:n89o:
nIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hu:l79l:
 /usr/local/clang/include/absl/base/internal/endian.h_:N164o:n27n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {In file included from 
s2/s2cell_index.cc      :| 18                          ^:

In file included from ../src/s2/s2cell_index.h:/usr/local/clang/include/absl/base/nullability.h26::
241In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h22::43 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
  In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | :#57d:
eIn file included from f/usr/local/clang/include/absl/hash/hash.hi:n89e:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
_/usr/local/clang/include/absl/base/internal/endian.hn:o258n:n36u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nonn  u258l | li
n      l| i                     ^n
e uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2builderutil_s2polyline_vector_layer.cc
:18  :
241In file included from  | ../src/s2/s2builderutil_s2polyline_vector_layer.h#:d27e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n69u:
lIn file included from l/usr/local/clang/include/absl/container/internal/container_memory.h :_29N:
oIn file included from n/usr/local/clang/include/absl/hash/hash.hn:u89ll
      | :
                     ^In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const voIn file included from is2/s2cell_index.ccd:*18 :
aIn file included from b../src/s2/s2cell_index.hs:l26_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h :p19):
 In file included from {/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      57| :
                                   ^In file included from 
/usr/local/clang/include/absl/hash/hash.h:89/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/hash/internal/hash.h::2279::
 /usr/local/clang/include/absl/base/internal/endian.hnote: :expanded from macro 'absl_nonnull'262
:27  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n262e |  ianblsiln_en ovnoniudl lS t_oNroen3n2u(lvlo
i      d| *                     ^ 
absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2builderutil_s2polyline_vector_layer.cce: 18a:
bIn file included from s../src/s2/s2builderutil_s2polyline_vector_layer.hl:_27n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l69l:

In file included from       /usr/local/clang/include/absl/container/internal/container_memory.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnuIn file included from ls2/s2cell_index.ccl: 18p:
,In file included from  ../src/s2/s2cell_index.hu:i26n:
tIn file included from 3/usr/local/clang/include/absl/container/flat_hash_set.h2:_43t:
 In file included from v/usr/local/clang/include/absl/container/hash_container_defaults.h): 19{:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :                          ^57
:
In file included from /usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/base/nullability.h::89241:
:In file included from 22/usr/local/clang/include/absl/hash/internal/hash.h:: 79note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/internal/endian.h
:266  :24136 | :# dwarning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
  266 | fiinnlei naeb suli_nnto6n4n_utl lL o_aNdo6n4n(ucloln
s      t|                       ^v
oid* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2builderutil_s2polyline_vector_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.h
:      27| :
                     ^In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t LIn file included from os2/s2cell_index.cca:d186:
4In file included from (../src/s2/s2cell_index.hc:o26n:
sIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.h :v43o:
iIn file included from d/usr/local/clang/include/absl/container/hash_container_defaults.h*: 19a:
bIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:_57n:
oIn file included from n/usr/local/clang/include/absl/hash/hash.hn:u89l:
lIn file included from  /usr/local/clang/include/absl/hash/internal/hash.hp:)79 :
{/usr/local/clang/include/absl/base/internal/endian.h
:      270| :                                   ^27
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 270expanded from macro 'absl_nonnull' | 
in  l241i | n#ed evfoiinde  Satbosrle_6n4o(nvnouildl*  _aNbosnln_unloln
n      u| l                     ^l
 p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2builderutil_s2polyline_vector_layer.ccl:l18 :
_In file included from N../src/s2/s2builderutil_s2polyline_vector_layer.ho:n27n:
uIn file included from l../src/s2/mutable_s2shape_index.hl:
30      :
| In file included from                      ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2builderutil_s2polyline_layer.cc250: | 18i:
nIn file included from l../src/s2/s2builderutil_s2polyline_layer.hi:n27e:
 In file included from u../src/s2/mutable_s2shape_index.hi:n30t:
1In file included from 6/usr/local/clang/include/absl/container/btree_map.h_:t67 :
Lo/usr/local/clang/include/absl/container/internal/btree_container.ha:d5231:631(:c owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
t vo  i523d | *   a b s l _ n o n n u l l   p )   {f
a      l| s                                   ^e
, f/usr/local/clang/include/absl/base/nullability.ha:l241s:e22):; 
      note: | expanded from macro 'absl_nonnull'                              ^

  241/usr/local/clang/include/absl/container/internal/btree_container.h | :#496d:e9f:i nnote: emacro 'ABSL_INTERNAL_X' defined here 
abs  l496_ | n#odnenfuilnle  _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_X(Func, Callee, KQual, MQual, KValue, MValue, ...)   In file included from  s2/s2builderutil_s2polyline_vector_layer.cc :\18
:
      In file included from | ../src/s2/s2builderutil_s2polyline_vector_layer.h        ^:
27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(inIn file included from ss2/s2builderutil_s2polyline_vector_layer.cce:r18t:
_In file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hr:_27a:
sIn file included from s../src/s2/mutable_s2shape_index.hi:g30n:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hi:n66s:
eIn file included from r/usr/local/clang/include/absl/container/internal/btree.ht:_69o:
rIn file included from _/usr/local/clang/include/absl/container/internal/container_memory.ha:s29s:
iIn file included from g/usr/local/clang/include/absl/hash/hash.hn:_89i:
mIn file included from p/usr/local/clang/include/absl/hash/internal/hash.hl:,79 :
c/usr/local/clang/include/absl/base/internal/endian.ho:n258s:t36 :& ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ons  t258  | &i,n
l      i| n  ^e
 /usr/local/clang/include/absl/container/internal/btree_container.h:509u:i52n:t 3note: 2expanded from macro 'ABSL_INTERNAL_X'_
t L  o509a | d 3 2 ( c o n s t   vAoBiSdL*_ IaNbTsElR_NnAoLn_nAuTlTlR IpB)U T{E
_      C| A                                   ^P
TU/usr/local/clang/include/absl/base/nullability.hR:E241D:_22B:Y (note: texpanded from macro 'absl_nonnull'h
is  )241) | ,# d e f i n e   a b s l _ n o n n u l l   _ N o n\n
u      l| l                                                   ^

      |                      ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_sIn file included from as2/s2builderutil_s2polyline_vector_layer.cct:i18s:
fIn file included from i../src/s2/s2builderutil_s2polyline_vector_layer.he:d27,:
 In file included from .../src/s2/mutable_s2shape_index.h.:.30):
 In file included from _/usr/local/clang/include/absl/container/btree_map.h_:V66A:
_In file included from A/usr/local/clang/include/absl/container/internal/btree.hR:G69S:
_In file included from _/usr/local/clang/include/absl/container/internal/container_memory.h
:      29| :
        ^In file included from 
/usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27In file included from :s2/s2builderutil_s2polyline_layer.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from   ../src/s2/mutable_s2shape_index.h262: | 30i:
nIn file included from l/usr/local/clang/include/absl/container/btree_map.hi:n67e:
 /usr/local/clang/include/absl/container/internal/btree_container.hv:o522i:d3 :S twarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
e32  (522v | o i dA*B SaLb_sIlN_TnEoRnNnAuLl_lX (pi,n sueirntt_3o2r__ta svs)i g{n
,       | i                          ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241_ | i#mdpelf,i nceo nasbts l&_,n ocnonnusltl  &_,N
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                     ^52
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURIn file included from Es2/s2builderutil_s2polyline_vector_layer.ccD:_18B:
YIn file included from (../src/s2/s2builderutil_s2polyline_vector_layer.ht:h27i:
sIn file included from )../src/s2/mutable_s2shape_index.h):)30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 69 :
 In file included from  /usr/local/clang/include/absl/container/internal/container_memory.h : 29 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h :\79
:
      | /usr/local/clang/include/absl/base/internal/endian.h                                                   ^:
266:36/usr/local/clang/include/absl/container/internal/common.h:: 32:warning: 9:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: macro 'ABSL_INTERNAL_IF_false' defined here
  266 |    i32n | l#idneef iunien tA6B4S_Lt_ ILNoTaEdR6N4A(Lc_oInFs_tf avlosied(*i fa_bssalt_insofnineudl,l  .p.). ){ 
_      _| V                                   ^A
_A/usr/local/clang/include/absl/base/nullability.hR:G241S:_22_:
       | note:         ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:In file included from 67s2/s2builderutil_s2polyline_vector_layer.cc:
:18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 525../src/s2/s2builderutil_s2polyline_vector_layer.h::3027::
 In file included from ../src/s2/mutable_s2shape_index.hwarning: :30passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66  :
525In file included from  | /usr/local/clang/include/absl/container/internal/btree.h : 69 :
 In file included from  /usr/local/clang/include/absl/container/internal/container_memory.h : 29 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
f/usr/local/clang/include/absl/base/internal/endian.ha:l270s:e27,:  twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e);
      |                              ^
  /usr/local/clang/include/absl/container/internal/btree_container.h270: | 496i:n9l:i nnote: emacro 'ABSL_INTERNAL_X' defined here 
voi  d496  | S#tdoerfei6n4e( vAoBiSdL*_ IaNbTsElR_NnAoLn_nXu(lFlu npc,,  uCianltl6e4e_,t  KvQ)u a{l
,       | M                          ^Q
ua/usr/local/clang/include/absl/base/nullability.hl:,241 :K22V:a lnote: uexpanded from macro 'absl_nonnull'e
,   M241V | a#ldueef,i n.e. .a)b s l _ n o\n
n      u| l        ^l
 _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_aIn file included from ss2/s2cell_index.ccs:i18g:
nIn file included from ,../src/s2/s2cell_index.h :i26n:
sIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hr:t43_:
oIn file included from r/usr/local/clang/include/absl/container/hash_container_defaults.h_:a19s:
sIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hg:n57_:
iIn file included from m/usr/local/clang/include/absl/hash/hash.hp:l89,:
 In file included from c/usr/local/clang/include/absl/hash/internal/hash.ho:n89s:
tIn file included from  /usr/local/clang/include/absl/numeric/int128.h&:,41 :
&&,/usr/local/clang/include/absl/types/compare.h :t78r:u22e:, 
      warning: | 'enable_if' is a clang extension [-Wgcc-compat]  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  536 |       78  |              _ _ a t t r i bfuatles_e_)(;(
e      n| a                  ~~~~~~b
le_/usr/local/clang/include/absl/container/internal/btree_container.hi:f509(:n47 := =note:  expanded from macro 'ABSL_INTERNAL_X'0
, "  O509n | l y   l i t e r a l  A`B0S`L _iIsN TaElRlNoAwLe_dA.T"T)R)I)B U{T}E
_      C| A                     ^P
TURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...In file included from )s2/s2builderutil_s2polyline_vector_layer.cc :_18_:
VIn file included from A../src/s2/s2builderutil_s2polyline_vector_layer.h_:A27R:
GIn file included from S../src/s2/mutable_s2shape_index.h_:_30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h        ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   tIn file included from rs2/s2cell_index.ccu:e18,:
 In file included from f../src/s2/s2cell_index.ha:l26s:
eIn file included from ,/usr/local/clang/include/absl/container/flat_hash_set.h :c43o:
nIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.ht:_19i:
tIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:a57t:
oIn file included from r/usr/local/clang/include/absl/hash/hash.h(:h89i:
nIn file included from t/usr/local/clang/include/absl/hash/internal/hash.h): 90A:
BSL/usr/local/clang/include/absl/strings/string_view.h_:I53N:T54E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_COMMA   )53; | 
c      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
tex/usr/local/clang/include/absl/container/internal/btree_container.hp:r509 :s47t:r inote: nexpanded from macro 'ABSL_INTERNAL_X'g
_vie  w509  | N u l l S a f e S t rAiBnSgLV_iIeNwT(EcRoNnAsLt_ AcThTaRrI*B UaTbEs_lC_AnPuTlUlRaEbDl_eB Yp()t h{i
s      )| )                                                     ^,
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e  \a
b      s| l                                              ^~~~_
nullabl/usr/local/clang/include/absl/container/internal/btree_container.he: 572_:N3u:l lwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
le/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                      ^52
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTIn file included from Es2/s2builderutil_s2polygon_layer.ccR:N18A:
LIn file included from _../src/s2/s2builderutil_s2polygon_layer.hI:F43_:
tIn file included from r../src/s2/s2builder.hu:e31(:
iIn file included from f/usr/local/clang/include/absl/container/flat_hash_set.h_:s45a:
ti/usr/local/clang/include/absl/container/internal/raw_hash_set.hs:f2663i:e53d:,  warning: .'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes].
.) i f2663_ | s a t i s f iTe&d&
       v| a        ^l
ue ABSL_INTERNAIn file included from Ls2/s2builderutil_s2polyline_layer.cc_:A18T:
TIn file included from R../src/s2/s2builderutil_s2polyline_layer.hI:B27U:
TIn file included from E../src/s2/mutable_s2shape_index.h_:C30A:
PIn file included from T/usr/local/clang/include/absl/container/btree_map.hU:R67E:
D/usr/local/clang/include/absl/container/internal/btree_container.h_:B628Y:(3t:h iwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes])
)
      |                                                     ^~~~
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnaIn file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
lignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
575 warnings generated.
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2cell_union.cc -o s2/s2cell_union.o
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | In file included from is2/s2builderutil_s2polyline_vector_layer.ccn:l18i:
nIn file included from e../src/s2/s2builderutil_s2polyline_vector_layer.h :c27o:
nIn file included from s../src/s2/mutable_s2shape_index.ht: 30s:
tIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:u66s:
_In file included from i/usr/local/clang/include/absl/container/internal/btree.hn:t70e:
rIn file included from n/usr/local/clang/include/absl/container/internal/layout.ha:l198::
:In file included from S/usr/local/clang/include/absl/strings/str_cat.ht:a116t:
uIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hR:e23p:
* /usr/local/clang/include/absl/strings/numbers.ha:b66s:l41_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull    S66t | a t u s : : R e p T o P o i n t e r ( 
        |                                           ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 :i22n:t _note: texpanded from macro 'absl_nonnull'y
pe  *241  | a#bdself_innoen naublsll _onuotn)n;u
l      l|                                          ^_
Non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:In file included from 27s2/s2builderutil_s2polyline_vector_layer.cc:
:In file included from 18../src/s2/mutable_s2shape_index.h:
:In file included from 41../src/s2/s2builderutil_s2polyline_vector_layer.h:
:In file included from 27../src/s2/s2cell_id.h:
:In file included from 43../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/internal/layout.h:
:198/usr/local/clang/include/absl/status/status.h:
:In file included from 1038/usr/local/clang/include/absl/strings/str_cat.h::33116::
 In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
/usr/local/clang/include/absl/strings/numbers.h:77 :103861 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
stat   u77s | _[i[nntoedrinsacla:r:dS]t]a tbuosoRle pS*i mapblselA_tnoofn(naublsll :r:espt)r i{n
g      _| v                                ^i
ew/usr/local/clang/include/absl/base/nullability.h :s241t:r22,:  fnote: lexpanded from macro 'absl_nonnull'o
at  *241  | a#bdself_innoen naublsll _onuotn)n;u
l      l|                                                              ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2builderutil_s2polyline_vector_layer.cc../src/s2/s2coder.h::1823:
:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h/usr/local/clang/include/absl/status/status.h::271063:
:In file included from 13../src/s2/mutable_s2shape_index.h:: 30:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h :106370 | :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.hh:a116r:
*In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n98o:n60n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] Sta
tusM   e98s | s[a[gneoAdsiCsSctarr(d
]      ]|              ^b
ool SimpleAto/usr/local/clang/include/absl/base/nullability.hb:(241a:b22s: lnote: :expanded from macro 'absl_nonnull':
st  r241i | n#gd_evfiienwe  satbrs,l _bnooonln*u lalb s_lN_onnonnunlull
l       | o                     ^u
t);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_noIn file included from ns2/s2builderutil_s2polygon_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_s2polygon_layer.hv:a48l:
uIn file included from e../src/s2/s2polygon.h,: 29i:
nIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.h :b45a:
se/usr/local/clang/include/absl/container/internal/raw_hash_map.h):;143
:      59| :                                        ^ 
warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
241:22:   note: 143expanded from macro 'absl_nonnull' | 
     241  |  # d e f i n e   a b s l _ nfoanlnsuel,l  f_aNlosnen,u lAlB
S      L| _                     ^I
NTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #deIn file included from fs2/s2builderutil_s2polyline_vector_layer.cci:n18e:
 In file included from A../src/s2/s2builderutil_s2polyline_vector_layer.hB:S27L:
_In file included from I../src/s2/mutable_s2shape_index.hN:T30E:
RIn file included from N/usr/local/clang/include/absl/container/btree_map.hA:L66_:
XIn file included from (/usr/local/clang/include/absl/container/internal/btree.hF:u70n:
cIn file included from ,/usr/local/clang/include/absl/container/internal/layout.h :C198a:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.he:e116,:
 In file included from K/usr/local/clang/include/absl/strings/internal/stringify_sink.hQ:u23a:
l/usr/local/clang/include/absl/strings/numbers.h,: 182V:Q7u:a lwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
KVal  u182e | ,c hVaVra*l uaeb,s lT_anioln,n u.l.l. )R o\u
n      d| T        ^r
ipDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182/usr/local/clang/include/absl/container/internal/raw_hash_map.h | :c142h:a3r:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  o142n | n u lAlB SRLo_uInNdTTErRiNpADLo_uXb(lienTsoeBrutf_foerr_(adsosuibglne,  di,n scehratr_*o ra_bassls_ingonn_niumlpll ,b ucfofnesrt)&;,
       c| o                                                           ^n
st/usr/local/clang/include/absl/base/nullability.h&:,241
:      22| :  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:133:  52241: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e133  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBUTE_CAPTUREDIn file included from _s2/s2builderutil_s2polyline_vector_layer.ccB:Y18(:
tIn file included from h../src/s2/s2builderutil_s2polyline_vector_layer.hi:s27):
)In file included from ,../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h :\23
:
      | /usr/local/clang/include/absl/strings/numbers.h                                                   ^:
183:7: /usr/local/clang/include/absl/container/internal/common.h:warning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
9: note:   macro 'ABSL_INTERNAL_IF_false' defined here183
 | ch   a32r | *# daebfsiln_en oAnBnSuLl_lI NRToEuRnNdATLr_iIpFF_lfoaaltsTeo(Biuff_fseart(ifslfoiaetd ,f ,. .c.h)a r_*_ VaAb_sAlR_GnSo_n_n
u      l| l        ^ 
buffer);
      | In file included from       ^s2/s2builderutil_s2polygon_layer.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2builderutil_s2polygon_layer.h241::4822:
:In file included from  ../src/s2/s2polygon.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:  45241:
 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h#:d142e:f3i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl  _142n | o n nAuBlSlL __INNoTnEnRuNlAlL
_      X| (                     ^i
nsert_oIn file included from rs2/s2builderutil_s2polyline_vector_layer.cc_:a18s:
sIn file included from i../src/s2/s2builderutil_s2polyline_vector_layer.hg:n27,:
 In file included from i../src/s2/mutable_s2shape_index.hn:s30e:
rIn file included from t/usr/local/clang/include/absl/container/btree_map.h_:o66r:
_In file included from a/usr/local/clang/include/absl/container/internal/btree.hs:s70i:
gIn file included from n/usr/local/clang/include/absl/container/internal/layout.h_:i198m:
pIn file included from l/usr/local/clang/include/absl/strings/str_cat.h,: 116c:
oIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:t23&:
,/usr/local/clang/include/absl/strings/numbers.h :c183o:n58s:t &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^
  183/usr/local/clang/include/absl/container/internal/raw_hash_map.h | :c135h:a16r:*  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  no135n | n u l l   R o u n d TtrhiipsF)l)o)a tATBoSBLu_fAfTeTrR(IfBlUoTaEt_ LfI,F EcThIaMrE*_ BaObUsNlD_ n{o n n u l l   b u f f e r ) ; 
        |                                                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
\
        241|  |                ^#
de/usr/local/clang/include/absl/container/internal/common.hf:i32n:e9 :a bnote: smacro 'ABSL_INTERNAL_IF_false' defined herel
_no   n32n | u#ldle f_iNnoen nAuBlSlL
_      I| N                     ^T
ERNAL_IF_false(if_satIn file included from is2/s2builderutil_s2polyline_vector_layer.ccs:f18i:
eIn file included from d../src/s2/s2builderutil_s2polyline_vector_layer.h,: 27.:
.In file included from .../src/s2/mutable_s2shape_index.h): 30_:
_In file included from V/usr/local/clang/include/absl/container/btree_map.hA:_66A:
RIn file included from G/usr/local/clang/include/absl/container/internal/btree.hS:_70_:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :        ^198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigiIn file included from ts2/s2builderutil_s2polygon_layer.ccs:T18o:
BIn file included from u../src/s2/s2builderutil_s2polygon_layer.hf:f48e:
rIn file included from (../src/s2/s2polygon.hd:o29u:
bIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.he: 45d:
,/usr/local/clang/include/absl/container/internal/raw_hash_map.h :c145h:a58r:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_  n145o | n n u l l   b u f f e r ) ; 
        |                                           ^ 
fa/usr/local/clang/include/absl/base/nullability.hl:s241e:,22 :t rnote: uexpanded from macro 'absl_nonnull'e
,   A241B | S#Ld_eIfNiTnEeR NaAbLs_lS_InNoGnLnEu_lAlR G_(N)o)n;n
u      l| l                                                         ^

      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h                     ^:
120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #deIn file included from fs2/s2builderutil_s2polyline_vector_layer.cci:n18e:
 In file included from A../src/s2/s2builderutil_s2polyline_vector_layer.hB:S27L:
_In file included from I../src/s2/mutable_s2shape_index.hN:T30E:
RIn file included from N/usr/local/clang/include/absl/container/btree_map.hA:L66_:
XIn file included from (/usr/local/clang/include/absl/container/internal/btree.hF:u70n:
cIn file included from ,/usr/local/clang/include/absl/container/internal/layout.h :C198a:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.he:e116,:
 In file included from K/usr/local/clang/include/absl/strings/internal/stringify_sink.hQ:u23a:
l/usr/local/clang/include/absl/strings/numbers.h,: 198V:Q7u:a lwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
KVa  l198u | ec,h aVrV*a laubes,l _Tnaoinln,u l.l. .F)a s\t
I      n| t        ^T
oBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 144:warning: 3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
198 | ch  a144r | *   aAbBsSlL__nIoNnTnEuRlNlA LF_aXs(tiInnsteTrotB_uofrf_ears(siingtn3,2 _itn sie,r tc_hoarr_*a sasbisgln__niomnpnlu,l lc obnusftf&e,r )c
o      n| s                                                    ^t
&,/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^22
: /usr/local/clang/include/absl/container/internal/raw_hash_map.hnote: :expanded from macro 'absl_nonnull'133
:52:   241 | note: #expanded from macro 'ABSL_INTERNAL_X'd
efin  e133  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBUTE_CAPTURED_BY(this)),                          \
      | In file included from                                                    ^s2/s2builderutil_s2polyline_vector_layer.cc
:18:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h32::279:
:In file included from  ../src/s2/mutable_s2shape_index.h:note: 30macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66   :
32In file included from  | /usr/local/clang/include/absl/container/internal/btree.h#:d70e:
fIn file included from i/usr/local/clang/include/absl/container/internal/layout.hn:e198 :
AIn file included from B/usr/local/clang/include/absl/strings/str_cat.hS:L116_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.hT:E23R:
N/usr/local/clang/include/absl/strings/numbers.hA:L199_:I5F:_ fwarning: a'diagnose_if' is a clang extension [-Wgcc-compat]l
se(  i199f | _ s a t iAsBfSiLe_dI,N T.E.R.N)A L___NVEAE_DA_RMGISN___S
I      Z| E        ^(
buffer, kFIn file included from as2/s2builderutil_s2polygon_layer.ccs:t18T:
oIn file included from B../src/s2/s2builderutil_s2polygon_layer.hu:f48f:
eIn file included from r../src/s2/s2polygon.hS:i29z:
eIn file included from )/usr/local/clang/include/absl/container/flat_hash_map.h;:
45      :
| /usr/local/clang/include/absl/container/internal/raw_hash_map.h    ^:
144:3/usr/local/clang/include/absl/base/macros.h:: 251:warning: 18passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'  
144 |     251A | B S L___IaNtTtErRiNbAuLt_eX_(_i(n(sdeiratg_noors_ea_sisfi(g_n_,b uiinlsteirnt__oobrj_eacsts_isginz_ei(mOpblj,,  c0o)n s<t &N,,  c\o
n      s| t                 ^&
,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2builderutil_s2polyline_vector_layer.cc  :13518 | :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
tIn file included from h/usr/local/clang/include/absl/container/btree_map.hi:s66):
)In file included from )/usr/local/clang/include/absl/container/internal/btree.h :A70B:
SIn file included from L/usr/local/clang/include/absl/container/internal/layout.h_:A198T:
TIn file included from R/usr/local/clang/include/absl/strings/str_cat.hI:B116U:
TIn file included from E/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:L23I:
F/usr/local/clang/include/absl/strings/numbers.hE:T200I:M7E:_ Bwarning: Otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
ND   {200  |  c h a r *   a b s l _ n o n n u l l   F a s t I n t T o B\u
f      f| e               ^r
(u/usr/local/clang/include/absl/container/internal/common.hi:n31t:392:_ tnote:  macro 'ABSL_INTERNAL_IF_true' defined heren
, c   h31a | r#*d eafbisnle_ nABSL_IoNnTnEuRlNlA Lo_uItF__sttrru)e
(      i| f      ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: ,expanded from macro 'absl_nonnull' 
..  .241) |  #idfe_fsiantei safbiseld_
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:In file included from 29s2/s2builderutil_s2polyline_vector_layer.cc:
:In file included from 18/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 45../src/s2/s2builderutil_s2polyline_vector_layer.h:
:/usr/local/clang/include/absl/container/internal/raw_hash_map.h27::
144In file included from :../src/s2/mutable_s2shape_index.h3::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h144: | 198 :
 In file included from A/usr/local/clang/include/absl/strings/str_cat.hB:S116L:
_In file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:T23E:
R/usr/local/clang/include/absl/strings/numbers.hN:A200L:_54X:( iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ert  _200o | rc_haasrs*i ganb,s li_nnsoenrntu_lolr _FaassstiIgnnt_TiomBpulf,f ecro(nusitn&t,3 2c_otn snt,& ,c
h      a| r  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
 ab  s145l | _ n o n n u l l   o u t _ s t r ) 
       f| a                                                     ^l
se/usr/local/clang/include/absl/base/nullability.h,: 241t:r22u:e ,note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aSbIsNlG_LnEo_nAnRuGl(l) )_;N
o      n| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll
/usr/local/clang/include/absl/container/internal/raw_hash_map.h      :| 135                     ^:
11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUNIn file included from Ds2/s2builderutil_s2polyline_vector_layer.cc :{18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116\:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :          ^~~~23
:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:u147i:l52t:i nwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
bje  c147t | _ s i z e ( O b j ,   0 )   <   N ,  f\a
l      s| e                 ^,
 ABSL_INTERNAIn file included from Ls2/s2builderutil_s2polyline_vector_layer.cc_:S18I:
NIn file included from G../src/s2/s2builderutil_s2polyline_vector_layer.hL:E27:
_In file included from ARG../src/s2/mutable_s2shape_index.h());
      :| 30:
                                                   ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 120/usr/local/clang/include/absl/container/internal/btree.h::970::
 In file included from /usr/local/clang/include/absl/container/internal/layout.hnote: :macro 'ABSL_INTERNAL_X' defined here198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116120:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e202 :A7B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTER  N202A | Lc_hXa(rF*u nacb,s lC_anlolneneu,l lK QFuaaslt,I nVtQTuoaBlu,f fKeVra(liunet,6 4V_Vta liu,e ,c hTaari*l ,a b.s.l._)n o\n
n      u| l        ^l
 buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastI/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:t146T:o3B:u fwarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
r(in  t1466 | 4 _ tA BiS,L _cIhNaTrE*R NaAbLs_lX_(nionnsneurltl_ obru_fafsesri)g
n      ,|                                                      ^i
ns/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | _#idmepfli,n ec oanbsstl&_,n ocnonnusltl& ,_ Ntornuneu,l
l      
|         ^| 
                     ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTIn file included from Es2/s2builderutil_s2polyline_vector_layer.cc_:C18A:
PIn file included from T../src/s2/s2builderutil_s2polyline_vector_layer.hU:R27E:
DIn file included from _../src/s2/mutable_s2shape_index.hB:Y30(:
tIn file included from h/usr/local/clang/include/absl/container/btree_map.hi:s66):
)In file included from ,/usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 203 : 5 :   warning: \'diagnose_if' is a clang extension [-Wgcc-compat]

      |                                                    ^
  203 | /usr/local/clang/include/absl/container/internal/common.h : 31 : 9A:B Snote: Lmacro 'ABSL_INTERNAL_IF_true' defined here_
INT   E31R | N#AdLe_fNiEnEeD _AMBISNL__SIINZTEE(RbNuAfLf_eIrF,_ tkrFuaes(tiTfo_BsuaftfiesrfSiiezde,) ;.
.      .| )    ^ 
if/usr/local/clang/include/absl/base/macros.h_:s251a:t18i:s fnote: iexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'e
d
        | 251        ^ | 
  __attribute__((diagnoIn file included from ss2/s2builderutil_s2polygon_layer.cce:_18i:
fIn file included from (../src/s2/s2builderutil_s2polygon_layer.h_:_48b:
uIn file included from i../src/s2/s2polygon.hl:t29i:
nIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.ho:b45j:
e/usr/local/clang/include/absl/container/internal/raw_hash_map.hc:t146_:s3i:z ewarning: ('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]O
bj, 0)   146< |   N ,A B\S
L      _| I                 ^N
TERNAL_X(inserIn file included from ts2/s2builderutil_s2polyline_vector_layer.cc_:o18r:
_In file included from a../src/s2/s2builderutil_s2polyline_vector_layer.hs:s27i:
gIn file included from n../src/s2/mutable_s2shape_index.h,: 30i:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.he:r66t:
_In file included from o/usr/local/clang/include/absl/container/internal/btree.hr:_70a:
sIn file included from s/usr/local/clang/include/absl/container/internal/layout.hi:g198n:
_In file included from i/usr/local/clang/include/absl/strings/str_cat.hm:p116l:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:o23n:
s/usr/local/clang/include/absl/strings/numbers.ht:&204,: 7c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
&,   t204r | uceh,a
r      *|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bsl  _147n | o n n u l l   F a s t I n t T o B u fffaelrs(eu,i nAtB6S4L__tI NiT,E RcNhAaLr_*S IaNbGsLlE__nAoRnGn(u)l)l; 
b      u| f                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
er)/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:      133| :      ^47
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'241
:22:   note: 133expanded from macro 'absl_nonnull' | 
     241  |  # d e f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this))In file included from ,s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h :\198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h                                              ^~~~:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h204::14654::3 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:  135204: | 16c:h anote: rexpanded from macro 'ABSL_INTERNAL_X'*
 abs  l135_ | n o n n u l l   F a stthIinst)T)o)B uAfBfSeLr_(AuTiTnRtI6B4U_TtE _iL,I FcEhTaIrM*E _aBbOsUlN_Dn o{n n u l l   b u f f e r ) 
        |                                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    \241
 |       #| d               ^e
fi/usr/local/clang/include/absl/container/internal/common.hn:e32 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_false' defined heren
onn   u32l | l# d_eNfoinnneu lAlB
S      L| _                     ^I
NTERNAL_IF_false(if_satisfied, ...) __VA_ARGIn file included from Ss2/s2builderutil_s2polyline_vector_layer.cc_:_18
:
      In file included from | ../src/s2/s2builderutil_s2polyline_vector_layer.h        ^:
27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __aIn file included from ts2/s2builderutil_s2polygon_layer.cct:r18i:
bIn file included from u../src/s2/s2builderutil_s2polygon_layer.ht:e48_:
_In file included from (../src/s2/s2polygon.h(:d29i:
aIn file included from g/usr/local/clang/include/absl/container/flat_hash_map.hn:o45s:
e/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:i149f:(51_:_ bwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
lti  n149_ | o b j e c t _ s i z e ( O b j ,   0 )t r<u eN,,  A\B
S      L| _                 ^I
NTERNAL_SINGLIn file included from Es2/s2builderutil_s2polyline_vector_layer.cc_:A18R:
GIn file included from (../src/s2/s2builderutil_s2polyline_vector_layer.h):)27;:

In file included from       ../src/s2/mutable_s2shape_index.h| :                                                  ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::66120:
:In file included from 9/usr/local/clang/include/absl/container/internal/btree.h:: 70:
note: In file included from macro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h  :120116 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.he:f23i:
n/usr/local/clang/include/absl/strings/numbers.he: 206A:B7S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TER  N206A | Lc_hXa(rF*u nacb,s lC_anlolneneu,l lK QFuaaslt,I nVtQTuoaBlu,f fKeVra(liunet,1 2V8V ail,u ec,h aTra*i la,b s.l._.n)o n\n
u      l| l        ^ 
buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastI/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:t148T:o3B:u fwarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
r(in  t1481 | 2 8  AiB,S Lc_hIaNrT*E RaNbAsLl__Xn(oinnnsuelrlt _bourf_faesrs)i
g      n| ,                                                   ^ 
insert/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n_  i241m | p#ld,e fcionnes ta&b,s lc_onnosntn&u,l lt r_uNeo,n
n      u| l  ^l

      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h                     ^:
133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIIn file included from Bs2/s2builderutil_s2polyline_vector_layer.ccU:T18E:
_In file included from C../src/s2/s2builderutil_s2polyline_vector_layer.hA:P27T:
UIn file included from R../src/s2/mutable_s2shape_index.hE:D30_:
BIn file included from Y/usr/local/clang/include/absl/container/btree_map.h(:t66h:
iIn file included from s/usr/local/clang/include/absl/container/internal/btree.h):)70,:
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 207 : 5 :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat] 
 \
        | 207                                                   ^ | 
  /usr/local/clang/include/absl/container/internal/common.h : 31A:B9S:L _note: Imacro 'ABSL_INTERNAL_IF_true' defined hereN
TER   N31A | L#_dNeEfEiDn_eM IANB_SSLI_ZIEN(TbEuRfNfAeLr_,I Fk_FtarsuteT(oiBfu_fsfaetri1s2f8iSeidz,e ).;.
.      )|      ^i
f_/usr/local/clang/include/absl/base/macros.hs:a251t:i18s:f inote: eexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'd

      |           ^251
 |   __attribute__(In file included from (s2/s2builderutil_s2polygon_layer.ccd:i18a:
gIn file included from n../src/s2/s2builderutil_s2polygon_layer.ho:s48e:
_In file included from i../src/s2/s2polygon.hf:(29_:
_In file included from b/usr/local/clang/include/absl/container/flat_hash_map.hu:i45l:
t/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:n148_:o3b:j ewarning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
_size(  O148b | j ,  A0B)S L<_ INN,T E\R
N      A| L                 ^_
X(insert_or_In file included from as2/s2builderutil_s2polyline_vector_layer.ccs:s18i:
gIn file included from n../src/s2/s2builderutil_s2polyline_vector_layer.h,: 27i:
nIn file included from s../src/s2/mutable_s2shape_index.he:r30t:
_In file included from o/usr/local/clang/include/absl/container/btree_map.hr:_66a:
sIn file included from s/usr/local/clang/include/absl/container/internal/btree.hi:g70n:
_In file included from i/usr/local/clang/include/absl/container/internal/layout.hm:p198l:
,In file included from  /usr/local/clang/include/absl/strings/str_cat.hc:o116n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.h&:,23 :
c/usr/local/clang/include/absl/strings/numbers.ho:n208s:t7&:,  warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue,  
208       | | c  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~h
ar  *149  | a b s l _ n o n n u l l   F a s t I nttrTuoeB,u fAfBeSrL(_uIiNnTtE1R2N8A Li_,S IcNhGaLrE*_ AaRbGs(l)_)n;o
n      n| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l b/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:f133f:e47r:) 
      note: | expanded from macro 'ABSL_INTERNAL_X'      ^

/usr/local/clang/include/absl/base/nullability.h:  241133: | 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oAnTnTuRlIlB U_TNEo_nCnAuPlTlU
R      E| D                     ^_
BY(this))In file included from ,s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h :\198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h                                              ^~~~:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: /usr/local/clang/include/absl/container/internal/raw_hash_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]148
:3:   warning: 208 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
ha/usr/local/clang/include/absl/container/internal/raw_hash_map.hr:*135 :a16b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onnu  l135l |   F a s t I n t T o Btuhfifse)r)()u iAnBtS1L2_8A TiT,R IcBhUaTrE*_ LaIbFsElT_InMEo_nBnOuUlNlD  b{u f f e r ) 
        |                                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i\n
e       | a               ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
_No   n31n | u#ldle
f      i| n                     ^e
 ABSL_INTERNAL_IF_true(if_satisfied, ...) iIn file included from fs2/s2builderutil_s2polyline_vector_layer.cc_:s18a:
tIn file included from i../src/s2/s2builderutil_s2polyline_vector_layer.hs:f27i:
eIn file included from d../src/s2/mutable_s2shape_index.h
:      30| :
        ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :s2/s2builderutil_s2polygon_layer.cc23::
18:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s2builderutil_s2polygon_layer.h209::485:
:In file included from  ../src/s2/s2polygon.h:warning: 29'diagnose_if' is a clang extension [-Wgcc-compat]:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h209: | 148 : 3 :  Awarning: B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]S
L_INT  E148R | N A LA_BNSELE_DI_NMTIENR_NSAILZ_EX((biunfsfeerrt,_ okrF_aasstsTiogBnu,f fienrs1e2r8tS_iozre_)a;s
s      i| g    ^n
_i/usr/local/clang/include/absl/base/macros.hm:p251l:,18 :c onote: nexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE's
t&,   251c | o n s_t_&a,t ttrriubeu,t
e      _| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(
(d  i149a | g n o s e _ i f ( _ _ b u i l t i n _torbujee,c tA_BsSiLz_eI(NOTbEjR,N A0L)_ S<I NNG,L E\_
A      R| G                 ^(
));
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'In file included from 
s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from   ../src/s2/s2builderutil_s2polyline_vector_layer.h135: | 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66t:
hIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:)70):
)In file included from  /usr/local/clang/include/absl/container/internal/layout.hA:B198S:
LIn file included from _/usr/local/clang/include/absl/strings/str_cat.hA:T116T:
RIn file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hB:U23T:
E/usr/local/clang/include/absl/strings/numbers.h_:L215I:F7E:T Iwarning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_BO  U215N | Dc h{a r *   a b s l _ n o n n u l l   F a s t I n t T o B u f f e\r
(      i| n          ^~~~t
_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                 /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 152 : 52 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      152  |                         c h a r *   afbaslls_en,o nAnBuSlLl_ IbNuTfEfReNrA)L
_      S| I                                                ^N
GL/usr/local/clang/include/absl/base/nullability.hE:_241A:R22G:( )note: )expanded from macro 'absl_nonnull';

      |                                                      ^241
 | #/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:e120f:i9n:e  note: amacro 'ABSL_INTERNAL_X' defined hereb
sl_  n120o | n#nduelfli n_eN oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:      151| :                 ^3
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGSIn file included from __
      |         ^
s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.hIn file included from :s2/s2builderutil_s2polygon_layer.cc66::
18In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :../src/s2/s2builderutil_s2polygon_layer.h70::
48In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :../src/s2/s2polygon.h198::
29In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h116::
45In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h23::
151:/usr/local/clang/include/absl/strings/numbers.h3::247 :47warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  151 |     A247B | S L _ I N T E R N A L _ X ( i n s e r t _ o r _ a s s i g n ,   i n s e ritn_to_rt_yapses*i ganb_silm_pnlo,n ncuolnls to&u,t ,& &i,n tf ablassee,)
       {| 
  ^      
|                                               ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:135:16/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'ABSL_INTERNAL_X':
 note: expanded from macro 'absl_nonnull'  
135 |    241  |  # d e f i n e  tahbissl)_)n)o nAnBuSlLl_ A_TNToRnInBuUlTlE
_      L| I                     ^F
ETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(inserIn file included from ts2/s2builderutil_s2polyline_vector_layer.cc_:o18r:
_In file included from a../src/s2/s2builderutil_s2polyline_vector_layer.hs:s27i:
gIn file included from n../src/s2/mutable_s2shape_index.h,: 30i:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.he:r66t:
_In file included from o/usr/local/clang/include/absl/container/internal/btree.hr:_70a:
sIn file included from s/usr/local/clang/include/absl/container/internal/layout.hi:g198n:
_In file included from i/usr/local/clang/include/absl/strings/str_cat.hm:p116l:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:o23n:
s/usr/local/clang/include/absl/strings/numbers.ht:&303,: 60&:& ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
alse  ,303
 |       i| n  ^l
in/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 133s:i52z:e _note: texpanded from macro 'ABSL_INTERNAL_X' 
Fas  t133H | e x T o B u f f e r ZAeBrSoLP_aIdN1T6E(RuNiAnLt_6A4T_TtR IvBaUlT,E _cChAaPrT*U RaEbDs_lB_Yn(otnhniusl)l) ,o u t )   { 
        |                                                             ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | \#
d      e| f                                                   ^i
ne/usr/local/clang/include/absl/container/internal/common.h :a32b:s9l:_ nnote: omacro 'ABSL_INTERNAL_IF_false' defined heren
nul   l32  | _#Ndoenfniunlel 
A      B| S                     ^L
_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assignIn file included from ,s2/s2builderutil_s2polyline_vector_layer.cc :i18n:
sIn file included from e../src/s2/s2builderutil_s2polyline_vector_layer.hr:t_o27r:
_In file included from a../src/s2/mutable_s2shape_index.hs:s30:
iIn file included from g/usr/local/clang/include/absl/container/btree_map.hn:_66i:
mIn file included from p/usr/local/clang/include/absl/container/internal/btree.hl:,70 :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
&In file included from ,/usr/local/clang/include/absl/strings/str_cat.h :&116&:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hf:a23l:
s/usr/local/clang/include/absl/strings/numbers.he:,330
:      41| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
154 |      330  |                             t r u e ,   A B S L _ I N T E R NiAnLt__StIyNpGeL*E _aAbRsGl(_)n)o;n
n      u| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
 ou/usr/local/clang/include/absl/container/internal/raw_hash_map.ht:)135 :{11
:       | note:                                         ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:  241135: | 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #tdheifsi)n)e)  aAbBsSlL__nAoTnTnRuIlBlU T_EN_oLnInFuElTlI
M      E| _                     ^B
OUND {                              \
      |           ^~~~
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:o156n:n52u:l lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
ut)   156{ | 
        |                                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241f | a#ldseef,i nAeB SaLb_sIlN_TnEoRnNnAuLl_l S_INNoGnLnEu_lAlR
G      (| )                     ^)
;
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue,In file included from  s2/s2builderutil_s2polyline_vector_layer.ccV:V18a:
lIn file included from u../src/s2/s2builderutil_s2polyline_vector_layer.he:,27 :
TIn file included from a../src/s2/mutable_s2shape_index.hi:l30,:
 In file included from ./usr/local/clang/include/absl/container/btree_map.h.:.66):
 In file included from \/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
        ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnu/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l155 :_3N:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll
        | 155                     ^ | 
  ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, tIn file included from rs2/s2builderutil_s2polyline_vector_layer.ccu:e18,:

In file included from       ../src/s2/s2builderutil_s2polyline_vector_layer.h| :  ^27
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::30133:
:In file included from 52/usr/local/clang/include/absl/container/btree_map.h:: 66:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :133198 | :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
A/usr/local/clang/include/absl/strings/numbers.hB:S346L:_44I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_  A346T | T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,              i n t _ t y p e *   a b s l _ n o n n u\l
l       | o                                                   ^u
t)/usr/local/clang/include/absl/container/internal/common.h :{31
:      9| :                                           ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/base/nullability.h
:241:22   :31  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_ltlr u_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48In file included from :
s2/s2builderutil_s2polyline_vector_layer.ccIn file included from :../src/s2/s2polygon.h18::
29In file included from :
../src/s2/s2builderutil_s2polyline_vector_layer.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h27::
45In file included from :
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: ../src/s2/mutable_s2shape_index.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h155: | 70 :
 In file included from A/usr/local/clang/include/absl/container/internal/layout.hB:S198L:
_In file included from I/usr/local/clang/include/absl/strings/str_cat.hN:T116E:
RIn file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.hA:L23_:
X/usr/local/clang/include/absl/strings/numbers.h(:i351n:s55e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_as  s351i | g n ,   i n s e r t _ o r _ a s s i g n _ i m p l ,   c o n s t & ,   & & ,   t raubes,l
:      :| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
t1  21568 | *   a b s l _ n o n n u l l   o u t )f a{l
s      e| ,                                                      ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241S | I#NdGeLfEi_nAeR Ga(b)s)l;_
n      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ull/usr/local/clang/include/absl/container/internal/raw_hash_map.h :_133N:o47n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l

      |                      ^  
133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                     In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from \../src/s2/s2builderutil_s2polyline_vector_layer.h
:      27| :
                                              ^~~~In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h70::
155In file included from :/usr/local/clang/include/absl/container/internal/layout.h3::198 :
In file included from warning: /usr/local/clang/include/absl/strings/str_cat.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
116:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h135::2316:
: /usr/local/clang/include/absl/strings/numbers.h:note: 356expanded from macro 'ABSL_INTERNAL_X':
56: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]135
 |       356  |           t h i s ) ) )   A B S L _ A T T R I B U T E _ L I F E T I M E _ B O U NaDb s{l : : u i n t 1 2 8 *   a b s l _ n o n n u l l   o u t )   {\

            | |                                                        ^               ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/common.h::24132::229::  note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_false' defined here

  241    | 32# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_uflall
s      e| (                     ^i
f_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Poi/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:t160e:e3*:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l160l | a b lAeB SvL,_ IPNaTdESRpNeAcL _sXp(eicn s=e rta_bosrl_:a:sksNiogPna,d )i
n      s| e                        ^r
t_o/usr/local/clang/include/absl/base/nullability.hr:_257a:s23s:i gnote: nexpanded from macro 'absl_nullable'_
im  p257l | ,# d&e&f,i nceo nasbts&l,_ nfualllsaeb,l
e       | _  ^N
ul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:a133b:l52e:
       | note:                       ^expanded from macro 'ABSL_INTERNAL_X'

  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNALIn file included from _s2/s2builderutil_s2polyline_vector_layer.ccX:(18i:
nIn file included from s../src/s2/s2builderutil_s2polyline_vector_layer.he:r27t:
_In file included from o../src/s2/mutable_s2shape_index.hr:_30a:
sIn file included from s/usr/local/clang/include/absl/container/btree_map.hi:g66n:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.hi:n70s:
eIn file included from r/usr/local/clang/include/absl/container/internal/layout.ht:_198o:
r_/usr/local/clang/include/absl/strings/str_cat.ha:s398s:i24g:n _warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]m
pl,   &398& | ,   cAolnpshta&N,u mt(rcuoen,s
t       | c  ^h
ar/usr/local/clang/include/absl/container/internal/raw_hash_map.h*: 133a:b52s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'u
lla  b133l | e   c _ s t r     / /A BNSOLL_IINNTT(ErRuNnAtLi_mAeT/TeRxIpBlUiTcEi_tC)A
P      T| U                       ^R
ED_/usr/local/clang/include/absl/base/nullability.hB:Y257(:t23h:i snote: )expanded from macro 'absl_nullable')
,    257  |  # d e f i n e   a b s l _ n u l l a b l e   _\N
u      l| l                                                   ^a
bl/usr/local/clang/include/absl/container/internal/common.he:
31      :| 9                      ^:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, constIn file included from &s2/s2builderutil_s2polyline_vector_layer.cc,: 18t:
rIn file included from u../src/s2/s2builderutil_s2polyline_vector_layer.he:,27
:
      In file included from | ../src/s2/mutable_s2shape_index.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :16566 | :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 /usr/local/clang/include/absl/strings/str_cat.h : 431 : 15 :   warning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
lse,   431A | B S Lc_oInNsTtE RcNhAaLr_*S IaNbGsLlE__nAuRlGl(a)b)l;e
       d| a                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
a()/usr/local/clang/include/absl/container/internal/raw_hash_map.h :c133o:n47s:t  note: {expanded from macro 'ABSL_INTERNAL_X' 
ret  u133r | n   p i e c e _ . d aAtBaS(L)_;I N}T
E      R| N              ^A
L_A/usr/local/clang/include/absl/base/nullability.hT:T257R:I23B:U Tnote: Eexpanded from macro 'absl_nullable'_
CA  P257T | U#RdEeDf_iBnYe( tahbissl)_)n,u l l a b l e   _ N u l l a b l e 
        |                        ^ 
     \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from In file included from s2/s2builderutil_s2polygon_layer.ccs2/s2builderutil_s2polyline_vector_layer.cc::1818:
:
In file included from In file included from ../src/s2/s2builderutil_s2polygon_layer.h../src/s2/s2builderutil_s2polyline_vector_layer.h::4827:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/mutable_s2shape_index.h::2930:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/container/btree_map.h::4566:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/container/internal/btree.h::17170::
3In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/strings/str_cat.h:501:32:   warning: 171 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 ABS  L501_ | IvNoTiEdR NAApLp_eXn(diPniseecrets_(osrt_da:s:ssitgrni,n gi*n saebrstl__onro_nansuslilg nd_eismtp,l
,       | &                               ^&
, &/usr/local/clang/include/absl/base/nullability.h&:,241 :f22a:l snote: eexpanded from macro 'absl_nonnull',
 t  r241u | e#,d
e      f| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
e   a172b | s l _ n o n n u l l   _ N o n n u l lA
B      S| L                     ^_
INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           In file included from ts2/s2builderutil_s2polyline_vector_layer.cch:i18s:
)In file included from )../src/s2/s2builderutil_s2polyline_vector_layer.h): 27A:
BIn file included from S../src/s2/mutable_s2shape_index.hL:_30A:
TIn file included from T/usr/local/clang/include/absl/container/btree_map.hR:I66B:
UIn file included from T/usr/local/clang/include/absl/container/internal/btree.hE:_70L:
IIn file included from F/usr/local/clang/include/absl/container/internal/layout.hE:T198I:
M/usr/local/clang/include/absl/strings/str_cat.hE:_635B:O36U:N Dwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{
       635  |  i n l i n e   v o i d   S t r A p p e n d ( s t\d
:      :| s               ^t
ri/usr/local/clang/include/absl/container/internal/common.hn:g32*: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld)e f{i}n
e       | A                                   ^B
SL_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
IF  _241f | a#ldseef(iinfe_ saabtsils_fnioendn,u l.l. ._)N o_n_nVuAl_lA
R      G| S                     ^_
_
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull deIn file included from ss2/s2builderutil_s2polygon_layer.cct:,18 :
cIn file included from o../src/s2/s2builderutil_s2polygon_layer.hn:s48t:
 In file included from A../src/s2/s2polygon.hl:p29h:
aIn file included from N/usr/local/clang/include/absl/container/flat_hash_map.hu:m45&:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:)176;:
45      :|                              ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/base/nullability.h:241:22  :176  | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s lA_BnSoLn_nIuNlTlE R_NNAoLn_nSuIlNlG
L      E| _                     ^A
RG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #dIn file included from es2/s2builderutil_s2polyline_vector_layer.ccf:i18n:
eIn file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.hA:B27S:
LIn file included from _../src/s2/mutable_s2shape_index.hI:N30T:
EIn file included from R/usr/local/clang/include/absl/container/btree_map.hN:A66L:
_In file included from X/usr/local/clang/include/absl/container/internal/btree.h(:F70u:
nIn file included from c/usr/local/clang/include/absl/container/internal/layout.h,: 198C:
a/usr/local/clang/include/absl/strings/str_cat.hl:l637e:e29,:  Kwarning: Qtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
al,   V637Q | uvaoli,d  KSVtarlAupep,e nVdV(asltude:,: sTtariiln,g *. .a.b)s l\_
n      o| n        ^n
ull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: /usr/local/clang/include/absl/container/internal/raw_hash_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]175
:3:   warning: 639 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]v
oid   S175t | r A pApBeSnLd_(IsNtTdE:R:NsAtLr_iXn(gi*n saebrstl__onro_nansuslilg nd,e sitn,s ecrotn_sotr _AalspshiagNnu_mi&m pal,,
       &| &                            ^,
 &/usr/local/clang/include/absl/base/nullability.h&:,241 :t22r:u enote: ,expanded from macro 'absl_nonnull' 
tr  u241e | ,#
d      e| f  ^i
ne/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a133b:s52l:_ nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l133  | _ N o n n u l l 
        | A                     ^B
SL_INTERNAL_ATTRIBUTE_CAPTURIn file included from Es2/s2builderutil_s2polyline_vector_layer.ccD:_18B:
YIn file included from (../src/s2/s2builderutil_s2polyline_vector_layer.ht:h27i:
sIn file included from )../src/s2/mutable_s2shape_index.h):,30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 /usr/local/clang/include/absl/strings/str_cat.h : 641 : 29 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
\
        | 641                                                   ^ | 
vo/usr/local/clang/include/absl/container/internal/common.hi:d31 :S9t:r Anote: pmacro 'ABSL_INTERNAL_IF_true' defined herep
end   (31s | t#dd:e:fsitnrei nAgB*S La_bIsNlT_EnRoNnAnLu_lIlF _dtersute,( icfo_nssatt iAslfpiheadN,u m.&. .a), 
i      f| _                            ^s
at/usr/local/clang/include/absl/base/nullability.hi:s241f:i22e:d 
      note: | expanded from macro 'absl_nonnull'        ^

  241 | #define abslIn file included from _s2/s2builderutil_s2polygon_layer.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_s2polygon_layer.hl:l48 :
_In file included from N../src/s2/s2polygon.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:
45      :
| /usr/local/clang/include/absl/container/internal/raw_hash_map.h                     ^:
175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNALIn file included from _s2/s2builderutil_s2polyline_vector_layer.ccX:(18i:
nIn file included from s../src/s2/s2builderutil_s2polyline_vector_layer.he:r27t:
_In file included from o../src/s2/mutable_s2shape_index.hr:_30a:
sIn file included from s/usr/local/clang/include/absl/container/btree_map.hi:g66n:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.hi:n70s:
eIn file included from r/usr/local/clang/include/absl/container/internal/layout.ht:_198o:
r/usr/local/clang/include/absl/strings/str_cat.h_:a646s:s36i:g nwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
mpl,   646& | &i,n l&i&n,e  tvrouied,  SttrruAep,p
e      n| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(
st  d176: | : s t r i n g *   a b s l _ n o n n uAlBlS Ld_eIsNtT,E RcNoAnLs_tS IANlGpLhEa_NAuRmG&( )a),;

            | |                                    ^                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h241::13322::47 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241 |   #133d | e f i n e   a b s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uAlTlT
R      I| B                     ^U
TE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assiIn file included from gs2/s2builderutil_s2polyline_layer.ccn:_18i:
mIn file included from p../src/s2/s2builderutil_s2polyline_layer.hl:,27 :
&In file included from &../src/s2/mutable_s2shape_index.h,: 44c:
oIn file included from n../src/s2/s2pointutil.hs:t27&:
, ../src/s2/util/math/matrix3x3.hf:a276l:s5e:, 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  199   | 276  |          S 2 _ C H E C K _ N E ( dtertu,e ,V T.yfpier(s0t),)  c<o<n s"t _Ciatne'rta tionrv eArBsSeL._ IDNeTtEeRrNmAiLn_aCnOtM M=A )0;.
"      ;| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|     ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:../src/s2/base/logging.h11::37 :21note: :expanded from macro 'ABSL_INTERNAL_X' 
note: expanded from macro 'S2_CHECK_NE'
  135    | 37  |  # d e f i n e   St2h_iCsH)E)C)K _ANBES LC_HAETCTKR_INBEU
T      E| _                    ^L
IF/usr/local/clang/include/absl/log/check.hE:T120I:M3E:_ Bnote: Oexpanded from macro 'CHECK_NE'U
ND   {120  |      A B S L _ L O G _ I N T E R N A L _ C H E C K _ N E _\I
M      P| L          ^~~~(
(val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #def/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:n200e: 3a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
null  a200b | l e  A_BNSuLl_lIaNbTlEeR
N      A| L                      ^_
X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52:In file included from  s2/s2builderutil_s2polyline_layer.cc:note: 18expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2builderutil_s2polyline_layer.h:27:
  In file included from 133../src/s2/mutable_s2shape_index.h | : 44 :
 In file included from  ../src/s2/s2pointutil.h : 27 :
 ../src/s2/util/math/matrix3x3.h : 276A:B5S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TE../src/s2/base/logging.hR:N37A:L21_:A Tnote: Texpanded from macro 'S2_CHECK_NE'R
IB   U37T | E#_dCeAfPiTnUeR ESD2__BCYH(EtChKi_sN)E) ,C H E C K _ N E 
        |                      ^ 
  /usr/local/clang/include/absl/log/check.h : 120 : 3 :   note:  expanded from macro 'CHECK_NE' 
     \120
 |        |                                                     ^A
BSL/usr/local/clang/include/absl/container/internal/common.h_:L31O:G9_:I Nnote: Tmacro 'ABSL_INTERNAL_IF_true' defined hereE
RNA   L31_ | C#HdEeCfKi_nNeE _AIBMSPLL_(I(NvTaElR1N)A,L _#IvFa_lt1r,u e((viafl_2s)a,t i#svfaile2d),
       .| .  ^.
) /usr/local/clang/include/absl/log/internal/check_impl.hi:f51_:s3a:t inote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'f
ied   
51       | |          ^ 
ABSL_LOG_INTERNAL_In file included from Cs2/s2builderutil_s2polygon_layer.ccH:E18C:
KIn file included from _../src/s2/s2builderutil_s2polygon_layer.hO:P48(:
CIn file included from h../src/s2/s2polygon.he:c29k:
_In file included from N/usr/local/clang/include/absl/container/flat_hash_map.hE:,45 :
!/usr/local/clang/include/absl/container/internal/raw_hash_map.h=:,200 :v3a:l 1warning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
val1_  t200e | x t ,A BvSaLl_2I,N TvEaRlN2A_Lt_eXx(ti)n
s      e| r  ^t
_o/usr/local/clang/include/absl/log/internal/check_op.hr:_75a:s61s:i gnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP',
 in   s75e | r t _AoBrS_La_sLsOiGg_nI_NiTmEpRlN,A L&_&C,H EcCoKn(s:t:&a,b stlr:u:ei,m
p      l| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
it_  c201a | s t < c o n s t   c h a r *   a b s lf_anlosnen,u l.lf>i(r s t ,   c\o
n      s| t                                                            ^_
it/usr/local/clang/include/absl/base/nullability.he:r241a:t22o:r  note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ CaObMsMlA_)n;o
n      n| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l _/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:o133n:n47u:l lnote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                      ^
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {  In file included from  s2/s2builderutil_snap_functions.cc : 18 :
 In file included from  ../src/s2/s2builderutil_snap_functions.h : 23 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 90\:

      | /usr/local/clang/include/absl/strings/string_view.h               ^:
53:54/usr/local/clang/include/absl/container/internal/common.h:: 32:warning: 9type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: macro 'ABSL_INTERNAL_IF_false' defined here
      5332 |  | c#odnesftienxep rA BsStLr_iInNgT_EvRiNeAwL _NIuFl_lfSaalfseeS(tirfi_nsgaVtiieswf(iceodn,s t. .c.h)a r_*_ VaAb_sAlR_GnSu_l_l
a      b| l        ^e
 p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polygon_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polygon_layer.h:48:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_ifIn file included from (s2/s2cell_id.ccs:t18r:
_In file included from f../src/s2/s2cell_id.ho:r37m:
aIn file included from t../src/s2/base/logging.h_:i21n:
tIn file included from e/usr/local/clang/include/absl/log/check.hr:n37a:
lIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h::V21a:
l/usr/local/clang/include/absl/log/internal/check_op.hi:d451F:o1r:m awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
mpl  <451C | .A.B.S>L(_fLoOrGm_aItN)T,E
R      N| A          ^L
_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
In file included from   s2/s2builderutil_s2polyline_vector_layer.cc449: | 18 :
 In file included from e../src/s2/s2builderutil_s2polyline_vector_layer.hx:t27e:
rIn file included from n../src/s2/mutable_s2shape_index.h :t30e:
mIn file included from p/usr/local/clang/include/absl/container/btree_map.hl:a66t:
eIn file included from  /usr/local/clang/include/absl/container/internal/btree.hc:o73n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h :c82h:
aIn file included from r/usr/local/clang/include/absl/crc/internal/crc_cord_state.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/crc/crc32c.hl:_32n:
oIn file included from n/usr/local/clang/include/absl/strings/str_format.hn:u84l:
l/usr/local/clang/include/absl/strings/internal/str_format/bind.h :M143a:k11e:C hwarning: e'enable_if' is a clang extension [-Wgcc-compat]c
kOpS  t143r | i n g (       \ 
        | e                              ^n
ab/usr/local/clang/include/absl/base/nullability.hl:e241_:i22f:( snote: texpanded from macro 'absl_nonnull'r
_f  o241r | m#adte_fiinntee ranbasll:_:nEonnsnuurlelC o_nNsotnenxuplrl(
s      )| ,                     ^ 
"constexprIn file included from  s2/s2cell_id.cct:r18a:
pIn file included from "../src/s2/s2cell_id.h):,37
:
      In file included from | ../src/s2/base/logging.h          ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char*/usr/local/clang/include/absl/strings/internal/str_format/bind.h :a149b:s22l:_ nwarning: o'enable_if' is a clang extension [-Wgcc-compat]n
null  )149
 |        |                             ^ 
__/usr/local/clang/include/absl/base/nullability.ha:t241t:r22i:b unote: texpanded from macro 'absl_nonnull'e
__  (241( | e#ndaebflien_ei fa(bsstlr__nfoonrnmualtl_ i_nNtoenrnnualll:
:      E| n                     ^s
ureConstexpr(s),
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | /usr/local/clang/include/absl/strings/internal/str_format/bind.hA:B158S:L22_:L Owarning: G'enable_if' is a clang extension [-Wgcc-compat]_
INTE  R158N | A L _ D E F I_N_Ea_tMtArKiEb_uCtHeE_C_K(_(OePn_aSbTlReI_NiGf_(EVXaTlEiRdNF(ofrlmoaattI)m;p
l      <| A^r
gs/usr/local/clang/include/absl/log/internal/check_op.h.:.449.:>31(:s )note: ,expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
"ba  d449  | f o remxatte rtnr atpe"m)p)l)a
t      e|                       ^c
onst char* absl_nonnull MakeChe/usr/local/clang/include/absl/strings/internal/str_format/bind.hc:k162O:p22S:t rwarning: i'enable_if' is a clang extension [-Wgcc-compat]n
g(     162\ | 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h_:_241a:t22t:r inote: bexpanded from macro 'absl_nonnull'u
te  _241_ | (#(deenfaibnlee _aibfs(lV_anloindnFuolrlm a_tNIomnpnlu<lAlr
g      s| .                     ^.
.>(s), In file included from "s2/s2cell_id.ccb:a18d:
 In file included from f../src/s2/s2cell_id.ho:r37m:
aIn file included from t../src/s2/base/logging.h :t21r:
aIn file included from p/usr/local/clang/include/absl/log/check.h":)37):
)In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                     ^:

/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSIn file included from Ls2/s2builderutil_s2polyline_vector_layer.cc_:L18O:
GIn file included from _../src/s2/s2builderutil_s2polyline_vector_layer.hI:N27T:
EIn file included from R../src/s2/mutable_s2shape_index.hN:A30L:
_In file included from D/usr/local/clang/include/absl/container/btree_map.hE:F66I:
NIn file included from E/usr/local/clang/include/absl/container/internal/btree.h_:M73A:
KIn file included from E/usr/local/clang/include/absl/strings/cord.h_:C82H:
EIn file included from C/usr/local/clang/include/absl/crc/internal/crc_cord_state.hK:_23O:
PIn file included from _/usr/local/clang/include/absl/crc/crc32c.hS:T32R:
IN/usr/local/clang/include/absl/strings/str_format.hG:_115E:X52T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
cons  t115  | v o i d *   acbosnls_tn osntnru_lflo)r;m
a      t| _^i
nt/usr/local/clang/include/absl/log/internal/check_op.he:r450n:a25l:: :note: Pexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
rs  e450d | F o r m a t Bxa,s ex*,  acbosnls_tn ocnhnaurl*l  apbcs)l
_      n| o                                                   ^n
nul/usr/local/clang/include/absl/base/nullability.hl:)241
:      22| :                        ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* aIn file included from bs2/s2builderutil_s2polyline_vector_layer.ccs:l18_:
nIn file included from u../src/s2/s2builderutil_s2polyline_vector_layer.hl:l27a:
bIn file included from l../src/s2/mutable_s2shape_index.he: 30n:
aIn file included from m/usr/local/clang/include/absl/container/btree_map.he:#66#:
IIn file included from m/usr/local/clang/include/absl/container/internal/btree.hp:l73(:
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 155 :\36
:       | warning:                                ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23  :155  | note:  expanded from macro 'absl_nullable' 
ex  p257l | i#cdietf iFnoer maabtsClo_unnutlClaapbtluer e_(Niunltl*a balbes
l      _| n                      ^o
nnull p) : pIn file included from _s2/s2cell_id.cc(:p18):
 In file included from {../src/s2/s2cell_id.h}:
37      :
| In file included from                                    ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:502:  1241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fi/usr/local/clang/include/absl/log/internal/check_op.hn:e489 :a47b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
onn  u489l | l   _ N o n ncuolnls
t       | T                     ^1
& v1, const T2& v2, const char*In file included from  s2/s2builderutil_s2polyline_vector_layer.cca:b18s:
lIn file included from _../src/s2/s2builderutil_s2polyline_vector_layer.hn:o27n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
eIn file included from x/usr/local/clang/include/absl/container/btree_map.hp:r66t:
eIn file included from x/usr/local/clang/include/absl/container/internal/btree.ht:)73 :
{In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from \/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:      23| :
                                              ^In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/strings/str_format.h::22164:: 8:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d164e | f i nien ta*b salb_snlo_nnnounlnlu l_lN oUnnnuusleld
(      )|                       ^{
 return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* aIn file included from bs2/s2cell_id.ccs:l18_:
nIn file included from o../src/s2/s2cell_id.hn:n37u:
lIn file included from l../src/s2/base/logging.h :p21_:
;In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37       ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241:/usr/local/clang/include/absl/log/internal/check_op.h22::502 :1note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e497f:i32n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_n  o497n | n u liln l_iNnoen ncuolnls
t      e| x                     ^p
r const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, cIn file included from os2/s2builderutil_s2polyline_vector_layer.ccn:s18t:
 In file included from c../src/s2/s2builderutil_s2polyline_vector_layer.hh:a27r:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73 :
eIn file included from x/usr/local/clang/include/absl/strings/cord.hp:r82t:
eIn file included from x/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:)23 :
{In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 380 : 43 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   \  
380       | | s                                  ^t
d:/usr/local/clang/include/absl/base/nullability.h::s241t:r22i:n gnote: &expanded from macro 'absl_nonnull' 
St  r241A | p#pdeenfdiFnoer maabts(ls_tndo:n:nsutlrli n_gN*o nanbuslll_
n      o| n                     ^n
ull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPLIn file included from (s2/s2builderutil_s2polyline_vector_layer.ccC:h18e:
cIn file included from k../src/s2/s2builderutil_s2polyline_vector_layer.h_:N27E:
In file included from ,../src/s2/mutable_s2shape_index.h :!30=:
)In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:73/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 488/usr/local/clang/include/absl/strings/cord.h::3282::
 In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32  :
488 | /usr/local/clang/include/absl/strings/str_format.h : 860i:n43l:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t860e | x p rf rcioennsdt  vcohiadr *A basblsFlo_rnmualtlFalbulseh (nFaomrem#a#tISmipnlk(*   a b s l _ n o n n u l l   s i n k ,\

            | |                                           ^                               ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257241::2322::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaubllle  __NNounlnlualbll
e      
|                            ^| 
                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: In file included from warning: s2/s2builderutil_s2polyline_vector_layer.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h489::2747:
:In file included from  ../src/s2/mutable_s2shape_index.h:note: 30expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
  In file included from 489/usr/local/clang/include/absl/container/internal/btree.h | : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82c:
oIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:t23 :
TIn file included from 1/usr/local/clang/include/absl/crc/crc32c.h&: 32v:
1/usr/local/clang/include/absl/strings/str_format.h,: 867c:o60n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
2& v  2867, |   c oenxsptl icchiatr *F oarbmsalt_Snionnkn(usltlr _efxoprrmtaetx_ti)n t{e r n a l :\:
F      o| r                                              ^m
at/usr/local/clang/include/absl/base/nullability.hS:i241n:k22I:m pnote: lexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bss)l
_      n| o                                                           ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internaIn file included from ls2/s2cell_id.cc:::18F:
oIn file included from r../src/s2/s2cell_id.hm:a37t:
SIn file included from i../src/s2/base/logging.hn:k21I:
mIn file included from p/usr/local/clang/include/absl/log/check.hl:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n503n:u1l:l  warning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nk/usr/local/clang/include/absl/log/internal/check_op.h_:;497
:      32| :                                       ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/base/nullability.h
:241:22:   497note:  | expanded from macro 'absl_nonnull' 
 i  n241l | i#ndee fcionnes taebxsplr_ ncoonnsnt charu*l la b_sNlo_nnnuulllla
b      l| e                     ^ 
name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2cell_index.ccf:i18n:
eIn file included from  ../src/s2/s2cell_index.ha:b26s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hn:o43n:
nIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19 :
_In file included from N/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:n59n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
82      :
| In file included from                      ^/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexceptIn file included from  s2/s2cell_id.cc{:
18      :
| In file included from        ^../src/s2/s2cell_id.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h257::2123:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nullable'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :25721 | :
#d/usr/local/clang/include/absl/log/internal/check_op.he:f505i:n1e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_nu  l505l | aAbBlSeL __LNOuGl_lIaNbTlEeR
N      A| L                      ^_
CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inlineIn file included from  s2/s2cell_index.ccc:o18n:
sIn file included from t../src/s2/s2cell_index.he:x26p:
rIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hc:o43n:
sIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h :c19h:
aIn file included from r/usr/local/clang/include/absl/container/internal/hash_function_defaults.h*: 59a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_82n:
uIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/crc/crc32c.h :n32a:
mIn file included from e/usr/local/clang/include/absl/strings/str_format.h#:#84I:
mIn file included from p/usr/local/clang/include/absl/strings/internal/str_format/bind.hl:(24 :
 In file included from  /usr/local/clang/include/absl/container/inlined_vector.h : 56 :
 In file included from  /usr/local/clang/include/absl/container/internal/inlined_vector.h : 35 :
 /usr/local/clang/include/absl/types/span.h : 799 : 32 :   warning: \type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                                ^
  799 | /usr/local/clang/include/absl/base/nullability.hS:p257a:n23<:c onote: nexpanded from macro 'absl_nullable's
t   T257> |  #MdaekfeiCnoen satbSspla_nn(uTl*l aabblsel __nNuullllaabbllee 
b      e| g                      ^i
n
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2cell_id.cc
:18  :
257In file included from  | ../src/s2/s2cell_id.h#:d37e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e505 :_1N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bl/usr/local/clang/include/absl/log/internal/check_op.he:
489      :| 47                      ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |     In file included from  s2/s2cell_index.cc :c18o:
nIn file included from s../src/s2/s2cell_index.ht: 26T:
1In file included from &/usr/local/clang/include/absl/container/flat_hash_set.h :v431:
,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hc:o19n:
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :T592:
&In file included from  /usr/local/clang/include/absl/strings/cord.hv:282,:
 In file included from c/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/crc/crc32c.hc:h32a:
rIn file included from */usr/local/clang/include/absl/strings/str_format.h :a84b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/str_format/bind.h_:n24o:
nIn file included from n/usr/local/clang/include/absl/container/inlined_vector.hu:l56l:
 In file included from e/usr/local/clang/include/absl/container/internal/inlined_vector.hx:p35r:
t/usr/local/clang/include/absl/types/span.he:x801t:)32 :{  warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  \  
801       | |                                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b sTl*_ naobnsnlu_lnlu l_lNaobnlneu leln
d      )|                       ^n
oexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:In file included from 66s2/s2cell_index.cc:
:In file included from 18/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73../src/s2/s2cell_index.h:
:In file included from 26/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::1931:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::55259::
64In file included from :/usr/local/clang/include/absl/strings/cord.h :warning: 82type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
  In file included from 552/usr/local/clang/include/absl/crc/crc32c.h | : 32 :
  /usr/local/clang/include/absl/strings/str_format.h : 115 : 52 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
         115  |              c o n s tb asster__ifnotremranta_li:n:tPeerrnTahlr:e:aPdSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flagasr)s;e
d      F| o                                     ^r
ma/usr/local/clang/include/absl/base/nullability.ht:B241a:s22e:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ep ca)b
s      l| _                                                   ^n
onnul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
      |                        ^241
 | #define absl_nonnuIn file included from ls2/s2builderutil_s2polyline_vector_layer.ccl: 18_:
NIn file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hn:n27u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      30| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullaIn file included from bs2/s2cell_index.ccl:e18 :
cIn file included from o../src/s2/s2cell_index.h:n26d:
,In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h      :| 43                                             ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/base/nullability.h::19257:
:In file included from 23/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/strings/cord.h:82  :
257In file included from  | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/crc/crc32c.hn:e32 :
a/usr/local/clang/include/absl/strings/str_format.hb:s155l:_36n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   _155N | u l leaxbpllei
c      i| t                      ^ 
FormatCountCapture(int* In file included from as2/s2builderutil_s2polyline_vector_layer.ccb:s18l:
_In file included from n../src/s2/s2builderutil_s2polyline_vector_layer.ho:n27n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30p:
)In file included from  /usr/local/clang/include/absl/container/btree_map.h:: 66p:
_In file included from (/usr/local/clang/include/absl/container/internal/btree.hp:)73 :
{In file included from }/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                   ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241562::2223::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #562d | e f ivnoei da bLsolc_knSolnonwu(lMlu H_oNwo nanbuslll_
n      o| n                     ^n
ull how, const Condition* absl_nullaIn file included from bs2/s2cell_index.ccl:e18 :
cIn file included from o../src/s2/s2cell_index.hn:d26,:

In file included from       /usr/local/clang/include/absl/container/flat_hash_set.h| :                      ^43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/base/nullability.h::19241:
:In file included from 22/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:  82241:
 | In file included from #/usr/local/clang/include/absl/crc/internal/crc_cord_state.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/crc/crc32c.he: 32a:
b/usr/local/clang/include/absl/strings/str_format.hs:l164_:n8o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _  N164o | n n uilnlt
*       | a                     ^b
sl_nonnuIn file included from ls2/s2builderutil_s2polyline_vector_layer.ccl: 18U:
nIn file included from u../src/s2/s2builderutil_s2polyline_vector_layer.hs:e27d:
(In file included from )../src/s2/mutable_s2shape_index.h :{30 :
rIn file included from e/usr/local/clang/include/absl/container/btree_map.ht:u66r:
nIn file included from  /usr/local/clang/include/absl/container/internal/btree.hp:_73;:
 In file included from }/usr/local/clang/include/absl/strings/cord.h
:      94| :
       ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/synchronization/mutex.h241::56222::58 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241 |   #562d | e f ivnoei da bLsolc_knSolnonwu(lMlu H_oNwo nanbuslll_
n      o| n                     ^n
ull how, const ConIn file included from ds2/s2cell_index.cci:t18i:
oIn file included from n../src/s2/s2cell_index.h*: 26a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hl:_43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl:a19b:
lIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :c59o:
nIn file included from d/usr/local/clang/include/absl/strings/cord.h,:
82      :
| In file included from                                                          ^/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/crc/crc32c.h::2332::
 /usr/local/clang/include/absl/strings/str_format.hnote: :expanded from macro 'absl_nullable'165
:8:   257warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
de  f165i | n e  ianbts*l _anbuslll_anbolnen u_lNlu lpl_a;b
l      e| 
       ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2builderutil_s2polyline_vector_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h_:N27o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18In file included from :
s2/s2builderutil_s2polyline_vector_layer.ccIn file included from :../src/s2/s2cell_index.h18::
26In file included from :
../src/s2/s2builderutil_s2polyline_vector_layer.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h27::
43In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h30::
19In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h66::
59In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/strings/cord.h73::
82In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h94::
23In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h31::
32/usr/local/clang/include/absl/synchronization/mutex.h:
:/usr/local/clang/include/absl/strings/str_format.h576::38049::43 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |    380  | vsotidd: :TsrtyrRienmgo&v eS(tbraAspep_einndtFeorrnmaalt:(:sPtedr:T:hsrteraidnSgy*n cahb*s la_bnsoln_nnuolnln udlslt ,s
)      ;| 
                                          ^      
|                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43In file included from :
s2/s2builderutil_s2polyline_vector_layer.ccIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h18::
19In file included from :
../src/s2/s2builderutil_s2polyline_vector_layer.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h27::
59In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/strings/cord.h30::
82In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h66::
23In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h73::
32In file included from :
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/strings/str_format.h94::
440In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h24::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
580:34:   warning: 440type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
int   580F | P r ibnatsFe(_sitndt:e:rFnIaLlE:*: PaebrsTlh_rneoandnSuylnlc ho*u tapbustl,_ ncuolnlsatb lFeo rWmaakteSuppe(c
<      A| r                                 ^g
s./usr/local/clang/include/absl/base/nullability.h.:.257>:&23 :f onote: rexpanded from macro 'absl_nullable'm
at  ,257
 |       #| d                       ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee f_iNnuel laabbslle_
n      o| n                      ^n
ull _NIn file included from os2/s2builderutil_s2polyline_vector_layer.ccn:n18u:
lIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.h
:      27| :
                     ^In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynIn file included from cs2/s2cell_index.cch:*18 :
aIn file included from b../src/s2/s2cell_index.hs:l26_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h :w19):
;In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59                                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::82241:
:In file included from 22/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:: 23:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/crc/crc32c.h
:32  :
241/usr/local/clang/include/absl/strings/str_format.h | :#469d:e20f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l469_ | nionntn uSlNlP r_iNnotnFn(uclhla
r      *|                       ^a
bsl_nonnull output, std::size_t In file included from ss2/s2builderutil_s2polyline_vector_layer.cci:z18e:
,In file included from 
../src/s2/s2builderutil_s2polyline_vector_layer.h      :| 27                   ^:

In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/base/nullability.h30::
241In file included from :/usr/local/clang/include/absl/container/btree_map.h22::66 :
In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'absl_nonnull':
73:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b585s:l20_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   _585N | o n nvuolild
       T| r                     ^a
ns(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2cell_index.ccn:n18u:
lIn file included from l../src/s2/s2cell_index.h
:      26| :
                     ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:In file included from 32s2/s2builderutil_s2polyline_vector_layer.cc:
:/usr/local/clang/include/absl/strings/str_format.h18::
503In file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h20::27 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/mutable_s2shape_index.h
:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h503: | 66 :
 In file included from F/usr/local/clang/include/absl/container/internal/btree.ho:r73m:
aIn file included from t/usr/local/clang/include/absl/strings/cord.hR:a94w:
SIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:k31(:
T/usr/local/clang/include/absl/synchronization/mutex.h*: 586a:b43s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l586l |   r avwo)i d  /F/e rN(ObLaIsNeT_
i      n| t                   ^e
rn/usr/local/clang/include/absl/base/nullability.ha:l241:::22P:e rnote: Texpanded from macro 'absl_nonnull'h
re  a241d | S#ydnecfhi*n ea basbls_ln_onnonnunlull
l       | _                                          ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2builderutil_s2polyline_vector_layer.ccs2/s2cell_id.cc::1818:
:
In file included from In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h../src/s2/s2cell_id.h::2737:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/base/logging.h::3022:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/log/log.h::66209:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/internal/log_impl.h::7320:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h::9463:
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/vlog_config.h::31119:
:15/usr/local/clang/include/absl/synchronization/mutex.h:: 641:warning: 68:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  119 |     c641o | n s te xcphlairc*i ta bMsult_enxoLnoncukl(lM uctoenxs&t  mfui lAeB_S;L
_      I| N              ^T
ERN/usr/local/clang/include/absl/base/nullability.hA:L241_:A22T:T Rnote: Iexpanded from macro 'absl_nonnull'B
UT  E241_ | C#AdPeTfUiRnEeD _aBbYs(lt_hniosn)n,u
l      l|                                                                     ^~~~_
Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2cell_index.ccl: 18_:
NIn file included from o../src/s2/s2cell_index.hn:n26u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h
:      43| :
                     ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FIn file included from os2/s2builderutil_s2polyline_vector_layer.ccr:m18a:
tIn file included from S../src/s2/s2builderutil_s2polyline_vector_layer.hi:n27k:
IIn file included from m../src/s2/mutable_s2shape_index.hp:l30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.ho:n73n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94s:
)In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                                                           ^:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/base/nullability.h670::24174::22 : warning: note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]expanded from macro 'absl_nonnull'

  241 | #  d670e | f i neex palbiscli_tn oRnenaudlelr M_uNtoenxnLuolclk
(      M| u                     ^t
ex& mu ABSL_INTERNAL_ATTRIn file included from Is2/s2cell_index.ccB:U18T:
EIn file included from _../src/s2/s2cell_index.hC:A26P:
TIn file included from U/usr/local/clang/include/absl/container/flat_hash_set.hR:E43D:
_In file included from B/usr/local/clang/include/absl/container/hash_container_defaults.hY:(19t:
hIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:)59):

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                                                                         ^~~~82
:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_inte/usr/local/clang/include/absl/synchronization/mutex.hr:n678a:l35::: Fwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
matS  i678n | k I mepxlp*l iacbistl _RneoandneurlMlu tseixnLko_c;k
(      M| u                                       ^t
ex/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dmeuf)i nAeB SaLb_sSlH_AnRoEnDn_uLlOlC K__NFoUnNnCuTlIlO
      N| (                     ^m
u)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unkIn file included from ns2/s2cell_id.cco:w18n:
 In file included from _../src/s2/s2cell_id.hN:u37l:
lIn file included from _../src/s2/base/logging.hu:n22s:
pIn file included from e/usr/local/clang/include/absl/log/log.hc:i209f:
iIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.hd:
20      :
| In file included from                                  ^/usr/local/clang/include/absl/log/absl_vlog_is_on.h
:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | inIn file included from ts2/s2builderutil_s2polyline_vector_layer.cc :R18e:
gIn file included from i../src/s2/s2builderutil_s2polyline_vector_layer.hs:t27e:
rIn file included from A../src/s2/mutable_s2shape_index.hn:d30I:
nIn file included from i/usr/local/clang/include/absl/container/btree_map.ht:i66a:
lIn file included from i/usr/local/clang/include/absl/container/internal/btree.hz:e73(:
VIn file included from L/usr/local/clang/include/absl/strings/cord.ho:g94S:
iIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.he:*31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s830l:_14n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   v830) | ; 
        |                                      ^ 
 bo/usr/local/clang/include/absl/base/nullability.ho:l241 :(22*:a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ifnuen ca)b(sTl*_ naobnsnlu_lnlu l_lNaobninluiltly
_      u| n                     ^k
nown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2cell_id.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2cell_id.h::3137:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/base/logging.h830::2236:
:In file included from  /usr/local/clang/include/absl/log/log.h:warning: 209type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20  :
830In file included from  | /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 157b:o11o:l  warning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
abs  l157_ | nVoLnonguSlilt ef*u nacb)s(lT_*n ualblsalb_lneu lSleatbViMloidtuyl_euLniksntoHwena)d,F
o      r| T                                   ^e
st/usr/local/clang/include/absl/base/nullability.hO:n289l:y34(:
       | note:           ^expanded from macro 'absl_nullability_unknown'

/usr/local/clang/include/absl/base/nullability.h  :289257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfuilnlea baiblsilt_yn_uulnlkanbolwen  __NNuulllla_bulnes
p      e| c                      ^i
fied
      | In file included from                                  ^s2/s2cell_id.cc
:18:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 | In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
VIn file included from L../src/s2/s2builderutil_s2polyline_vector_layer.ho:g27S:
iIn file included from t../src/s2/mutable_s2shape_index.he:*30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he: 94v:
)In file included from ;/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
              ^/usr/local/clang/include/absl/synchronization/mutex.h
:831:/usr/local/clang/include/absl/base/nullability.h46::257 :23warning: : type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'absl_nullable'
    831257 |  |  # d e f i ntey paebnsalm_en ualblsalb:l:et y_pNeu_lildaebnltei
t      y| <                      ^T
>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex*In file included from  s2/s2cap.cca:b18s:
lIn file included from _../src/s2/s2cap.hn:u30l:
lIn file included from a../src/s2/s1angle.hb:l28e:
 In file included from m../src/s2/s2point.hu:,27 :
cIn file included from o../src/s2/s2coder.hn:s23t:
 In file included from C/usr/local/clang/include/absl/status/status.ho:n67d:
iIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hi:o29n:
&In file included from  /usr/local/clang/include/absl/strings/cord.hc:o82n:
dIn file included from )/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:      23| :
                                 ^In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/strings/str_format.h::2384::
 In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.hnote: :expanded from macro 'absl_nullable'29
:
  /usr/local/clang/include/absl/strings/internal/str_format/parser.h257: | 227#:d11e:f iwarning: n'enable_if' is a clang extension [-Wgcc-compat]e
 absl  _227n | u l l a b l e   _ N uelnlaabbllee_
i      f| (                      ^s
tr_format_internal::EnsureConstexpr(format),
      | In file included from           ^s2/s2builderutil_s2polyline_vector_layer.cc
:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/strings/internal/str_format/parser.h30::
229In file included from :/usr/local/clang/include/absl/container/btree_map.h11::66 :
In file included from warning: /usr/local/clang/include/absl/container/internal/btree.h'enable_if' is a clang extension [-Wgcc-compat]:
73:
In file included from /usr/local/clang/include/absl/strings/cord.h:  94229:
 | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1132 : 10 :e nwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
le_ i1132f | ( s tMru_tfeoxr*m aatb_siln_tneurlnlaalb:l:eV acloindsFto rmmua_t;I
m      p| l         ^<
C./usr/local/clang/include/absl/base/nullability.h.:.257>:(23f:o rnote: mexpanded from macro 'absl_nullable'a
t)  ,257
 |       #| d          ^e
fine absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from In file included from s2/s2builderutil_s2polyline_vector_layer.cc/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::1823:
:
In file included from In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h/usr/local/clang/include/absl/crc/crc32c.h::2732:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/str_format.h::3084:
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/internal/str_format/bind.h::66143:
:In file included from 11/usr/local/clang/include/absl/container/internal/btree.h:: 73:
warning: In file included from 'enable_if' is a clang extension [-Wgcc-compat]/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31143:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 1179 : 10 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 e n1179a | b l eM_uitfe(xs*t ra_bfsolr_mnautl_lianbtleer nmaul_:;:
E      n| s         ^u
re/usr/local/clang/include/absl/base/nullability.hC:o257n:s23t:e xnote: pexpanded from macro 'absl_nullable'r
(s  )257, |  #"dceofnisntee xapbrs lt_rnaupl"l)a,b
l      e|            ^_
Nullable
      |                       ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from In file included from s2/s2builderutil_s2polyline_vector_layer.cc/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::1823:
:
In file included from In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h/usr/local/clang/include/absl/crc/crc32c.h::2732:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/str_format.h::30867:
:In file included from 60/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.h
:73:
/usr/local/clang/include/absl/strings/cord.h:  425867: | 62 :  ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
lici  t425  | F o rfmraiteSnidn kv(ositdr _CfooprymCaotr_diTnotSetrrnianlg:(:cFoonrsmta tCSoirndk&I msprlc*,  asbtsdl:_:nsotnrniunlgl*  sa)b
s      l| _                                                           ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :d snote: texpanded from macro 'absl_nonnull')
;
        241|  |                                                              ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2builderutil_s2polyline_vector_layer.cc67::
18In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h29::
27In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/mutable_s2shape_index.h82::
30In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h23::
66In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h32::
73:
/usr/local/clang/include/absl/strings/str_format.h:/usr/local/clang/include/absl/strings/cord.h869::43740::47 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    869437 |  |     s t r _ f o r m a t _ i n t e r n a l : : F o r m a t S i n k Ismtpdl:*: satbrsiln_gn*o nanbuslll_ nsoinnnku_l;l
       d| s                                       ^t
);/usr/local/clang/include/absl/base/nullability.h
:      241| :                                              ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2builderutil_s2polyline_layer.ccl:l18 :
_In file included from N../src/s2/s2builderutil_s2polyline_layer.ho:n28n:
uIn file included from l../src/s2/s2builder.hl:
31      :
| In file included from                      ^/usr/local/clang/include/absl/container/flat_hash_set.h
:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 | In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.hT:&27&:
 In file included from v../src/s2/mutable_s2shape_index.ha:l30u:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.hA:B66S:
LIn file included from _/usr/local/clang/include/absl/container/internal/btree.hI:N73T:
E/usr/local/clang/include/absl/strings/cord.hR:N999A:L28_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBU  T999E | _ C A P TvUoRiEdD _CBoYp(ytThoiAsr)r)a
y      (| c                                                    ^~~~h
ar* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^/usr/local/clang/include/absl/container/internal/raw_hash_set.h
:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       cIn file included from os2/s2builderutil_s2polyline_vector_layer.ccn:s18t:
 In file included from T../src/s2/s2builderutil_s2polyline_vector_layer.h&: 27v:
aIn file included from l../src/s2/mutable_s2shape_index.hu:e30 :
AIn file included from B/usr/local/clang/include/absl/container/btree_map.hS:L66_:
IIn file included from N/usr/local/clang/include/absl/container/internal/btree.hT:E73R:
N/usr/local/clang/include/absl/strings/cord.hA:L1017_:A51T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE_ C1017A | P T U R EvDo_iBdY (stehti_sc)o)r
d      z| _                                                         ^~~~i
nfo(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_inte/usr/local/clang/include/absl/container/internal/raw_hash_set.hr:n2734a:l65::: Cwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
dRep*  2734a | b s l _ n o n n u l l   r e p , 
       In file included from  | T                                                       ^s2/s2cell_index.cc&
&: /usr/local/clang/include/absl/base/nullability.h18v::
a241In file included from l:../src/s2/s2cell_index.hu22e:: 26 A:
note: BIn file included from expanded from macro 'absl_nonnull'S/usr/local/clang/include/absl/container/flat_hash_set.h
L:  _43241I:
 | NIn file included from #Td/usr/local/clang/include/absl/container/hash_container_defaults.hEe:RfN19iA:
nLeIn file included from _ A/usr/local/clang/include/absl/container/internal/hash_function_defaults.haTbT:sRlI59_B:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
n/usr/local/clang/include/absl/strings/cord_analysis.h:o32n:n47u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nonnull   
32       | | s                     ^i
ze_t GetEstimIn file included from as2/s2builderutil_s2polyline_vector_layer.cct:e18d:
MIn file included from e../src/s2/s2builderutil_s2polyline_vector_layer.hm:o27r:
yIn file included from U../src/s2/mutable_s2shape_index.hs:a30g:
eIn file included from (/usr/local/clang/include/absl/container/btree_map.hc:o66n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h :73C:
o/usr/local/clang/include/absl/strings/cord.hr:d1050R:e45p:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_ n1050o | n n u l l   r e p ) ; 
        |                                                ^ 
     /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :a bnote: sexpanded from macro 'absl_nonnull'l
::  s241t | r#idnegf_ivniee wa*b salb_snlo_nnnounlnlu l_lN ofnrnauglmle
n      t| )                     ^;

      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2cell_index.ccl:l18 :
_In file included from N../src/s2/s2cell_index.ho:n26n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.hl:
43      :
| In file included from                      ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   In file included from 50s2/s2builderutil_s2polyline_vector_layer.cc | :s18i:
zIn file included from e../src/s2/s2builderutil_s2polyline_vector_layer.h_:t27 :
GIn file included from e../src/s2/mutable_s2shape_index.ht:M30o:
rIn file included from e/usr/local/clang/include/absl/container/btree_map.hP:r66e:
cIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:e73M:
e/usr/local/clang/include/absl/strings/cord.hm:o1054r:y37U:s awarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(co n1054s | t   C o r d Raebps*l :a:bcsolr_dn_oinnntuelrln arle:p:)C;o
r      d| R                                                ^e
p* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | r#edpe,f
i      n| e                                    ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      | In file included from                      ^s2/s2cell_index.cc
:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | sizIn file included from es2/s2builderutil_s2polyline_vector_layer.cc_:t18 :
GIn file included from e../src/s2/s2builderutil_s2polyline_vector_layer.ht:E27s:
tIn file included from i../src/s2/mutable_s2shape_index.hm:a30t:
eIn file included from d/usr/local/clang/include/absl/container/btree_map.hF:a66i:
rIn file included from S/usr/local/clang/include/absl/container/internal/btree.hh:a73r:
e/usr/local/clang/include/absl/strings/cord.hM:e1061m:o34r:y Uwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ge( c1061o | n s tv oCiodr dCRoeppy*T oaAbrsrla_ynSolnonwuPlalt hr(ecph)a;r
*       | a                                                       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
ds  t241) |  #cdoenfsitn;e
       a| b                                 ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
UTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: In file included from warning: s2/s2cap.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2cap.h:30 :
1183In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 86 :
 /usr/local/clang/include/absl/strings/cord_analysis.h : 50 : 49 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ordR   e50p | *s iazbes_lt_ nGueltlMaobrleeP rreecpi)s
e      M| e                                              ^m
ory/usr/local/clang/include/absl/base/nullability.hU:s257a:g23e:( cnote: oexpanded from macro 'absl_nullable'n
st   257C | o#rddeRfeipn*e  aabbssll__nnounlnlualbll er e_pN)u;l
l      a| b                                                ^l
e
/usr/local/clang/include/absl/base/nullability.h      :| 241                      ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
575 warnings generated.
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2cell.cc -o s2/s2cell.o
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2builderutil_s2polyline_vector_layer.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2builderutil_s2polyline_vector_layer.h | :#27d:
eIn file included from f../src/s2/mutable_s2shape_index.hi:n30e:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s67l:
_n/usr/local/clang/include/absl/container/internal/btree_container.ho:n523n:u31l:l  warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
onnu  l523l | 
        |                       ^ 
              false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLock/usr/local/clang/include/absl/container/internal/btree_container.hM:a522y:b3e:( Mwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
ex*   a522b | s l _AnBuSlLl_aIbNlTeE RmNuA)L
_      X| (                                 ^i
ns/usr/local/clang/include/absl/base/nullability.he:r257t:_23o:r _note: aexpanded from macro 'absl_nullable's
si  g257n | ,# dienfsienret _aobrs_la_snsuilglna_bilmep l_,N uclolnasbtl e&
,       | c                      ^o
nst &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |        In file included from  s2/s2cap.cc : 18A:
BIn file included from S../src/s2/s2cap.hL:_30I:
NIn file included from T../src/s2/s1angle.hE:R28N:
AIn file included from L../src/s2/s2point.h_:A27T:
TIn file included from R../src/s2/s2coder.hI:B23U:
TIn file included from E/usr/local/clang/include/absl/status/status.h_:C67A:
PIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hU:R29E:
DIn file included from _/usr/local/clang/include/absl/strings/cord.hB:Y94(:
tIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.hi:s31):
)/usr/local/clang/include/absl/synchronization/mutex.h,: 1117 : 34 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1117  |      e x p l i c i t\ 
M      u| t                                                   ^e
xLockMay/usr/local/clang/include/absl/container/internal/common.hb:e32(:M9u:t enote: xmacro 'ABSL_INTERNAL_IF_false' defined here*
 ab   s32l | _#nduelflianbel eA BmSuL,_ IcNoTnEsRtN ACLo_nIdFi_tfiaolns&e (ciofn_ds)a
t      i| s                                 ^f
ie/usr/local/clang/include/absl/base/nullability.hd:,257 :.23.:. )note:  expanded from macro 'absl_nullable'_
_V  A257_ | A#RdGeSf_i_n
e       | a        ^b
sl_nullablIn file included from es2/s2builderutil_s2polyline_vector_layer.cc :_18N:
uIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.hl:a27b:
lIn file included from e../src/s2/mutable_s2shape_index.h
:      30| :
                      ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_orIn file included from _s2/s2cap.cca:s18s:
iIn file included from g../src/s2/s2cap.hn:,30 :
iIn file included from n../src/s2/s1angle.hs:e28r:
tIn file included from _../src/s2/s2point.ho:r27_:
aIn file included from s../src/s2/s2coder.hs:i23g:
nIn file included from _/usr/local/clang/include/absl/status/status.hi:m67p:
lIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht: 94&:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31n:
s/usr/local/clang/include/absl/synchronization/mutex.ht: 1132&:,10
:       | warning:   ^
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:511 :113252 | :   note: Mexpanded from macro 'ABSL_INTERNAL_X'u
tex  *511  | a b s l _ n u l l a bAlBeS Lc_oInNsTtE RmNuA_L;_
A      T| T         ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T257E:_23C:A Pnote: Texpanded from macro 'absl_nullable'U
RE  D257_ | B#Yd(etfhiinse) )a)b s l _ n u l l a b l e   _ N u l l a b l e 
        | \                      ^

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9:In file included from  s2/s2cap.cc:note: 18macro 'ABSL_INTERNAL_X' defined here:

In file included from ../src/s2/s2cap.h:30  :
496In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
AIn file included from B../src/s2/s2coder.hS:L23_:
IIn file included from N/usr/local/clang/include/absl/status/status.hT:E67R:
NIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hL:_29X:
(In file included from F/usr/local/clang/include/absl/strings/cord.hu:n94c:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hC:a31l:
l/usr/local/clang/include/absl/synchronization/mutex.he:e1146,: 7In file included from K:s2/s2cell_id.ccQ :u18warning: a:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]lIn file included from 
,../src/s2/s2cell_id.h :M43Q:
 uIn file included from 1146a../src/s2/s1angle.h | l: ,28  :
 KIn file included from  V../src/s2/s2point.h a: l27tu:
heIn file included from i,../src/s2/s2coder.hs :)M23)V:
 aIn file included from Al/usr/local/clang/include/absl/status/status.hBu:Se67L,:
_ In file included from .E/usr/local/clang/include/absl/status/internal/status_internal.h.X:.C29)L:
 UIn file included from  S/usr/local/clang/include/absl/strings/cord.h I :V 82E\:
_
In file included from L      /usr/local/clang/include/absl/crc/internal/crc_cord_state.hO| :C        ^23K
:
_In file included from /usr/local/clang/include/absl/crc/crc32c.hF:U32N:
CIn file included from T/usr/local/clang/include/absl/strings/str_format.hI:O84N:
(In file included from m/usr/local/clang/include/absl/strings/internal/str_format/bind.hu:)29
:
      | /usr/local/clang/include/absl/strings/internal/str_format/parser.h      ^~~~:
227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(st/usr/local/clang/include/absl/synchronization/mutex.hr:_1153:f39o:r mwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_in t1153e | r n aelx:p:lEincsiutr eRCeolnesatseaxbplre(MfuotremxaLto)c,k
(      M| u          ^t
ex/usr/local/clang/include/absl/container/internal/btree_container.h*: 524a:/usr/local/clang/include/absl/strings/internal/str_format/parser.hb3:s:229l :_warning: 11n:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o 
nwarning: n'enable_if' is a clang extension [-Wgcc-compat]u
  l524l |     m 229uA | )B 
S       L | _                                       ^I 
N T /usr/local/clang/include/absl/base/nullability.hE :R 241N :Ae22Ln:_a Xbnote: (lexpanded from macro 'absl_nonnull'ie
n_s  ie241fr | (t#s_dtoerrf__ifanosers miaagbtns_,li _nintnoesnrennruatll_l:o :r_V_NaaolsnisndiuFglonlr_
mi      am| tp                     ^Il
m,p lc<oCn.s.t. >&(,f ocromnastt) ,&
,      
|                 ^| 
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 | In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from A../src/s2/s1angle.hB:S28L:
_In file included from I../src/s2/s2point.hN:T27E:
RIn file included from N../src/s2/s2coder.hA:L23_:
AIn file included from T/usr/local/clang/include/absl/status/status.hT:R67I:
BIn file included from U/usr/local/clang/include/absl/status/internal/status_internal.hT:E29_:
CIn file included from A/usr/local/clang/include/absl/strings/cord.hP:T94U:
RIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hD:_31B:
Y/usr/local/clang/include/absl/synchronization/mutex.h(:t1158h:i53s:) )warning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
      1158  |              M u t e x &   m u   A\B
S      L| _                                                   ^I
NT/usr/local/clang/include/absl/container/internal/common.hE:R32N:A9L:_ Anote: Tmacro 'ABSL_INTERNAL_IF_false' defined hereT
RIB   U32T | E#_dCeAfPiTnUeR EADB_SBLY_(ItNhTiEsR)N,A
L      _| I                                                    ^~~~F
_false(if_satisfied, ...) __VA_ARGS/usr/local/clang/include/absl/synchronization/mutex.h_:_1166
:      39| :        ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 | In file included from  s2/s2builderutil_s2polyline_vector_layer.cc :e18x:
pIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.hi:c27i:
tIn file included from  ../src/s2/mutable_s2shape_index.hR:e30l:
eIn file included from a/usr/local/clang/include/absl/container/btree_map.hs:a67b:
l/usr/local/clang/include/absl/container/internal/btree_container.he:M524u:t3e:x Lwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
k(M  u524t | e x *A BaSbLs_lI_NnToEnRnNuAlLl_ Xm(ui,n sceornts_to rC_oansdsiitgino,n &i ncsoenrdt)_
o      r| _                                      ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g241n:_22i:m pnote: lexpanded from macro 'absl_nonnull',
 c  o241n | s#td e&f,i nceo nasbts l&_,n
o      n| n  ^u
ll _/usr/local/clang/include/absl/container/internal/btree_container.hN:o511n:n52u:l lnote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                      ^
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))In file included from )s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from \/usr/local/clang/include/absl/status/status.h
:      67| :
                                                   ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31/usr/local/clang/include/absl/strings/cord.h::994::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here31
:
/usr/local/clang/include/absl/synchronization/mutex.h:   117931: | 10#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne  1179A | B S LM_uItNeTxE*R NaAbLs_lI_Fn_utlrluaeb(lief _msua_t;i
s      f| i         ^e
d,/usr/local/clang/include/absl/base/nullability.h :.257.:.23):  inote: fexpanded from macro 'absl_nullable'_
sa  t257i | s#fdieefdi
n      e|          ^a
bsl_nullable _NIn file included from us2/s2builderutil_s2polyline_vector_layer.ccl:l18a:
bIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.he:
27      :
| In file included from                       ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_inte/usr/local/clang/include/absl/container/internal/btree_container.hr:n527a:l30::: Ewarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
ure  C527o | n s t e x p r ( s ) ,   " c o n s t etxrpure ,t rfaapl"s)e,)
;      
|                 ^| 
                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, /usr/local/clang/include/absl/strings/internal/str_format/bind.hK:Q149u:a22l:,  warning: M'enable_if' is a clang extension [-Wgcc-compat]Q
uIn file included from as2/s2cap.cc  l:149,18 |  :
 KIn file included from  V../src/s2/s2cap.h a: l30 u:
 eIn file included from _,../src/s2/s1angle.h_ :aM28tV:
taIn file included from rl../src/s2/s2point.hiu:be27u,:
t In file included from e.../src/s2/s2coder.h_.:_.23():
( In file included from e /usr/local/clang/include/absl/status/status.hn a: b67 l:
\eIn file included from 
_/usr/local/clang/include/absl/status/internal/status_internal.h      i:| f29(        ^:
s
In file included from t/usr/local/clang/include/absl/strings/cord.hr:_94f:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hm:a31t:
_/usr/local/clang/include/absl/synchronization/mutex.hi:n1212t:e52r:n awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:Ens u1212r | ebCooonls tCeoxnpdri(tsi)o,n
:      :| C                     ^a
stAndCallMethod(const Condition* absl_nonn/usr/local/clang/include/absl/strings/internal/str_format/bind.hu:l158l: 22c:)  warning: {'enable_if' is a clang extension [-Wgcc-compat]

      |                                                    ^
  158/usr/local/clang/include/absl/base/nullability.h | : 241 : 22/usr/local/clang/include/absl/container/internal/btree_container.h ::  526 :note: _3expanded from macro 'absl_nonnull'_:
a t  warning: t241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r | 
i#bdue  tf526ei | _n _e ( A(aBebSnsLal_b_IlnNeoT_nEinRfuN(lAVlLa _l_XiN(doiFnnonsruemlraltt
_I      om| rp                     ^_l
a<sAsriggsn.,. .i>n(sse)r,t _"obra_da sfsoirgmna_ti mtprla,p "c)o)n)s
t       | &                     ^,
 const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |  In file included from  s2/s2cap.cc/usr/local/clang/include/absl/strings/internal/str_format/bind.h :: 18162 :
: In file included from 22 ../src/s2/s2cap.h: :  30warning:  :
'enable_if' is a clang extension [-Wgcc-compat]AIn file included from 
B../src/s2/s1angle.hS:L28  _:
162IIn file included from  | N../src/s2/s2point.h T: E27 R:
 NIn file included from  A../src/s2/s2coder.h L:__23_A:
aTIn file included from tT/usr/local/clang/include/absl/status/status.htR:rI67iB:
bUIn file included from uT/usr/local/clang/include/absl/status/internal/status_internal.htE:e_29_C:
_AIn file included from P(/usr/local/clang/include/absl/strings/cord.hT(:Ue94Rn:
EaIn file included from Db/usr/local/clang/include/absl/strings/internal/cordz_info.h_l:Be31Y_:
(i/usr/local/clang/include/absl/synchronization/mutex.htf:h(1221iV:sa54)l:)i ,dwarning:  Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] o
 r m a  t1221 I |  mb po lo <l A  rC go sn .d .i .t >i (o sn ): ,:  C\"a
bs      at| dA                                                   ^ n
fdoC/usr/local/clang/include/absl/container/internal/common.hra:ml31al:tF9 u:tn rcnote: atmacro 'ABSL_INTERNAL_IF_true' defined herepi
"o)n)   )(31
c |       o#| nd                     ^se
tf iCnoen dAiBtSiLo_nI*N TaEbRsNlA_Ln_oInFn_utlrlu ec()i f{_
s      a| t                                                     ^i
sf/usr/local/clang/include/absl/base/nullability.hi:e241d:,22 :. .note: .expanded from macro 'absl_nonnull')
 i  f241_ | s#adteifsifniee da
b      s| l        ^_
nonnull _NonnulIn file included from ls2/s2builderutil_s2polyline_vector_layer.cc
:      18| :
                     ^In file included from 
../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assigIn file included from ns2/s2cap.cc_:i18m:
pIn file included from l../src/s2/s2cap.h,: 30c:
oIn file included from n../src/s2/s1angle.hs:t28 :
&In file included from ,../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.ht: 23&:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :52729 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1230 : 12 :   warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue,  1230f | a l s e )b;o
o      l|                    ~~~~~~~~~~~~(
*ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l f  u509n | c ) ( T *   a b s l _AnBuSlLl_aIbNiTlEiRtNyA_Lu_nAkTnToRwInB)U,T
E      _| C           ^A
PT/usr/local/clang/include/absl/base/nullability.hU:R241E:D22_:B Ynote: (expanded from macro 'absl_nonnull't
hi  s241) | )#,d e f i n e   a b s l _ n o n n u l l   _ N o n n\u
l      l| 
                                              ^~~~      
|                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 526s2/s2cap.cc::318::
 In file included from ../src/s2/s2cap.hwarning: :30passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/btree_container.h::28511:
:In file included from 52../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :51167 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T1230E:R34N:A Lwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]A
TTR I1230B | U T E _ CbAoPoTlU R(E*Da_bBsYl(_tnhoinsn)u)l)l   f u n c ) ( T *   a b s l _ n u l l a b i l i\t
y      _| u                                                   ^n
kn/usr/local/clang/include/absl/container/internal/common.ho:w32n:)9,:
       | note:                                  ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/base/nullability.h:   28932: | 34#:d enote: fexpanded from macro 'absl_nullability_unknown'i
ne   289A | B#SdLe_fIiNnTeE RaNbAsLl__InFu_lflaalbsiel(iitfy__suantkinsofwine d_,N u.l.l._)u n_s_pVeAc_iAfRiGeSd_
_      
|                                        ^| 
        ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: In file included from expanded from macro 'absl_nullability_unknown's2/s2builderutil_s2polyline_vector_layer.cc
:18:
  In file included from 289../src/s2/s2builderutil_s2polyline_vector_layer.h | :#27d:
eIn file included from f../src/s2/mutable_s2shape_index.hi:n30e:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s67l:
_/usr/local/clang/include/absl/container/internal/btree_container.hn:u529l:l29a:b iwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ty_  u529n | k n o w n   _ N u l l _ u n s p e c itfriueed,
       t| r                                 ^u
e);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue,In file included from  s2/s2cap.cc.:.18.:
)In file included from  ../src/s2/s2cap.h : 30 :
 In file included from \../src/s2/s1angle.h
:      28| :
        ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define /usr/local/clang/include/absl/container/internal/btree_container.ha:b528s:l3_:n owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull   _528N | o n nAuBlSlL
_      I| N                     ^T
ERNAL_In file included from Xs2/s2cap.cc(:i18n:
sIn file included from e../src/s2/s2cap.hr:t30_:
oIn file included from r../src/s2/s1angle.h_:a28s:
sIn file included from i../src/s2/s2point.hg:n27,:
 In file included from i../src/s2/s2coder.hn:s23e:
rIn file included from t/usr/local/clang/include/absl/status/status.h_:o67r:
_In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hs:s29i:
gIn file included from n/usr/local/clang/include/absl/strings/cord.h_:i94m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31c:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s1241t: 34&:,  warning: ctype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
nst  1241& | , 
        |    ^b
oo/usr/local/clang/include/absl/container/internal/btree_container.hl: 509(:*52a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n509u | l l   f u n c ) ( T *A BaSbLs_lI_NnTuElRlNaAbLi_lAiTtTyR_IuBnUkTnEo_wCnA)P,T
U      R| E                                 ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(289t:h34i:s )note: )expanded from macro 'absl_nullability_unknown',
     289  |  # d e f i n e   a b s l _ n u l l a b i\l
i      t| y                                                   ^_
un/usr/local/clang/include/absl/container/internal/common.hk:n31o:w9n:  _note: Nmacro 'ABSL_INTERNAL_IF_true' defined hereu
ll_   u31n | s#pdeecfiifniee dA
B      S| L                                 ^_
INTERNAL_IF_true(if_satisfiedIn file included from ,s2/s2cap.cc :.18.:
.In file included from )../src/s2/s2cap.h :i30f:
_In file included from s../src/s2/s1angle.ha:t28i:
sIn file included from f../src/s2/s2point.hi:e27d:

In file included from       ../src/s2/s2coder.h| :        ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2builderutil_s2polyline_vector_layer.cc:/usr/local/clang/include/absl/synchronization/mutex.h18::
1242In file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h44::27 :
In file included from warning: ../src/s2/mutable_s2shape_index.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h: 671242:
 | /usr/local/clang/include/absl/container/internal/btree_container.h : 528 : 3t:y pwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ame a  b528s | l : :AtBySpLe__IiNdTeEnRtNiAtLy_<XT(>i:n:steyrpte_*o ra_bassls_ingunl,l aibnisleirtty__ourn_kansoswing
n      _| i                                           ^m
pl/usr/local/clang/include/absl/base/nullability.h,: 289c:o34n:s tnote:  expanded from macro 'absl_nullability_unknown'&
,   c289o | n#sdte f&i,n
e       | a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl  _529n | u l l a b i l i t y _ u n k n o w n  t_rNuuel,l _turnusep)e;c
i      f| i                  ~~~~~~~~~~~e
d
      | /usr/local/clang/include/absl/container/internal/btree_container.h                                 ^:
509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTEIn file included from _s2/s2cap.ccC:A18P:
TIn file included from U../src/s2/s2cap.hR:E30D:
_In file included from B../src/s2/s1angle.hY:(28t:
hIn file included from i../src/s2/s2point.hs:)27):
,In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
\/usr/local/clang/include/absl/synchronization/mutex.h
:      1249| :                                              ^~~~8
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h :1249528 | : 3 :   warning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*
 /usr/local/clang/include/absl/container/internal/btree_container.ha:b511s:l52_:n onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull   511o | b j e c t , 
        |         ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241A | T#TdReIfBiUnTeE _aCbAsPlT_UnRoEnDn_uBlYl( t_hNiosn)n)u)l l 
        |                       ^ 
                  In file included from \s2/s2cap.cc
:      18| :
                                                   ^In file included from 
../src/s2/s2cap.h:30/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s1angle.h::928::
 In file included from ../src/s2/s2point.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here27
:
In file included from ../src/s2/s2coder.h:   2331:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29A:
BIn file included from S/usr/local/clang/include/absl/strings/cord.hL:_94I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hE:R31N:
A/usr/local/clang/include/absl/synchronization/mutex.hL:_1250I:F43_:t rwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(if _1250s | a t i s fbioeodl,  (.a.b.s)l :i:ft_yspaet_iisdfeinetdi
t      y| <        ^T
>::type::* aIn file included from bs2/s2builderutil_s2polyline_vector_layer.ccs:l18_:
nIn file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hn:n27u:
lIn file included from l../src/s2/mutable_s2shape_index.h :m30e:
tIn file included from h/usr/local/clang/include/absl/container/btree_map.ho:d67):
(/usr/local/clang/include/absl/container/internal/btree_container.h):)528
:      3| :                                          ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/base/nullability.h
:241:22:   note: 528expanded from macro 'absl_nonnull' | 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lX_(nionnsneurltl_ o_rN_oansnsuilgln
,       | i                     ^n
sert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, truIn file included from es2/s2cap.cc):;18
:
      In file included from | ../src/s2/s2cap.h                  ~~~~~~~~~~~:
30:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/btree_container.h::28511:
:In file included from 47../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :51167 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T1259E:R14N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
TTR I1259B | U T E _ CcAoPnTsUtR ETD*_ BaYb(stlh_inso)n)n)u l l   o b j e c t , 
        |               ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: \expanded from macro 'absl_nonnull'

      |                                                 ^~~~241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (abs/usr/local/clang/include/absl/container/internal/btree_container.hl::532::t24y:p ewarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
de  n532t | i t y < T > : : t y p e : : *   a b sfla_lnsoen)n;u
l      l|                         ^m
et/usr/local/clang/include/absl/container/internal/btree_container.hh:o496d:)9(:) 
      note: | macro 'ABSL_INTERNAL_X' defined here                                          ^

/usr/local/clang/include/absl/base/nullability.h  :496241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   A241B | S#Ld_eIfNiTnEeR NaAbLs_lX_(nFounnncu,l lC a_lNloenen,u lKlQ
u      a| l                     ^,
 MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h::241531::223::  note: warning: expanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  241 |   #531d | e f iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( i_nNsoenrntu_lolr
_      a| s                     ^s
ign, insert_or_assign_impl, const In file included from &s2/s2cap.cc,: 18&:
&In file included from ,../src/s2/s2cap.h :f30a:
lIn file included from s../src/s2/s1angle.he:,28
:
      In file included from | ../src/s2/s2point.h  ^:
27:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2coder.h::50923::
52In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h509: | 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1293 :A33B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTER N1293A | Lv_oAiTdT RRIeBgUiTsEt_eCrAMPuTtUeRxETDr_aBcYe(rt(hviosi)d) ,( * a b s l _ n o n n u l l   f n ) ( c o n s t  \c
h      a| r                                                   ^*
 a/usr/local/clang/include/absl/container/internal/common.hb:s32l:_9n:o nnote: nmacro 'ABSL_INTERNAL_IF_false' defined hereu
ll    m32s | g#,d
e      f| i                                ^n
e /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#IdFe_ffianles ea(bisfl__snaotninsuflile d_,N o.n.n.u)l l_
_      V| A                     ^_
ARGSIn file included from _s2/s2cap.cc_:
18      :
| In file included from         ^../src/s2/s2cap.h
:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2builderutil_s2polyline_vector_layer.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2builderutil_s2polyline_vector_layer.h::2927:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/mutable_s2shape_index.h::9430:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/container/btree_map.h::3167:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/btree_container.h::1293531::623::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

 1293   | 531v | o i dA BRSeLg_iIsNtTeErRMNuAtLe_xXT(riancseerr(tv_ooird_ a(s*saibgsnl,_ nionnsneurltl_ ofrn_)a(scsoingsnt_ icmhpalr,*  caobnsslt_ n&o,n n&u&l,l  fmaslgs,e
,      
|                                                                    ^| 
  ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/btree_container.h241::22511:: 52:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_INTERNAL_X'
  241 | #  d511e | f i n e   a b s l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lAlT
T      R| I                     ^B
UTE_CAPTIn file included from Us2/s2cap.ccR:E18D:
_In file included from B../src/s2/s2cap.hY:(30t:
hIn file included from i../src/s2/s1angle.hs:)28):
)In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
\In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                                                   ^:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/container/internal/common.h1294::3262::9 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]macro 'ABSL_INTERNAL_IF_false' defined here

    321294 |  | # d e f i n e   A B S L _ I N T E R N A L _ I F _ f a l s e ( i f _ s a t i s f i e d ,   . . . )  c_o_nVsAt_ AvRoGiSd_*_ 
a      b| s        ^l
_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2builderutil_s2polyline_vector_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h_:N27o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |            In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h :t30r:
uIn file included from e../src/s2/s1angle.h):;28
:
      In file included from | ../src/s2/s2point.h                      ^:
27:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2coder.h::49623::
9In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 496/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.hA:B1309S:L35_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA L1309_ | Xv(oFiudn cR,e gCiasltleereC,o nKdQVuaarlT,r aMcQeura(lv,o iKdV a(l*uaeb,s lM_Vnaolnuneu,l l. .f.n)) ( 
        |                                    ^\

      | /usr/local/clang/include/absl/base/nullability.h        ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n533u:l3l:  mwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]g
, co  n533s | t   vAoBiSdL*_ IaNbTsElR_NnAoLn_nXu(liln scevr)t)_;o
r      _| a                ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241,: 22:i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen _aibmspll_,n ocnonnusltl  &_,N o&n&n,u lfla
l      s| e                     ^,

      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2cap.cc509::1852:
:In file included from  ../src/s2/s2cap.h:note: 30expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s1angle.h:28:
  In file included from 509../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h :A67B:
SIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:I29N:
TIn file included from E/usr/local/clang/include/absl/strings/cord.hR:N94A:
LIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hA:T31T:
R/usr/local/clang/include/absl/synchronization/mutex.hI:B1310U:T47E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TUR E1310D | _ B Y ( tchoinss)t) ,c h a r *   a b s l _ n o n n u l l   m s g ,   c\o
n      s| t                                                   ^ 
vo/usr/local/clang/include/absl/container/internal/common.hi:d32*: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld ecfvi)n)e; 
A      B| S                                              ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'I
F_  f241a | l#sdee(fiifn_es aatbisslf_ineodn,n u.l.l. )_ N_o_nVnAu_lAlR
G      S| _                     ^_

      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24:In file included from  s2/s2cell_id.ccwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]18
:
In file included from ../src/s2/s2cell_id.h  :53643 | :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from     ../src/s2/s2coder.h : 23 :
fIn file included from a/usr/local/clang/include/absl/status/status.hl:s67e:
)In file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                       ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:82/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 496/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::923::
 In file included from /usr/local/clang/include/absl/crc/crc32c.hnote: :macro 'ABSL_INTERNAL_X' defined here32
:
/usr/local/clang/include/absl/strings/str_format.h:  115496: | 52#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne A  B115S | L _ I N T E RcNoAnLs_tX (sFturn_cf,o rCmaaltl_eien,t eKrQnuaall:,: PMaQrusaeld,F oKrVmaaltuBea,s eM*V aalbusel,_ n.o.n.n)u l l   p c\)

            | |         ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |     In file included from  s2/s2cell_id.cc : 18 :
 In file included from  ../src/s2/s2cell_id.hA:B43S:
LIn file included from _../src/s2/s1angle.hI:N28T:
EIn file included from R../src/s2/s2point.hN:A27L:
_In file included from A../src/s2/s2coder.hT:T23R:
IIn file included from B/usr/local/clang/include/absl/status/status.hU:T67E:
_In file included from C/usr/local/clang/include/absl/status/internal/status_internal.hA:P29T:
UIn file included from R/usr/local/clang/include/absl/strings/cord.hE:D82_:
BIn file included from Y/usr/local/clang/include/absl/crc/internal/crc_cord_state.h(:t23h:
iIn file included from s/usr/local/clang/include/absl/crc/crc32c.h):)32,:
 /usr/local/clang/include/absl/strings/str_format.h : 155 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       155  |      e x p l i c\i
t       | F                                                   ^o
rm/usr/local/clang/include/absl/container/internal/common.ha:t31C:o9u:n tnote: Cmacro 'ABSL_INTERNAL_IF_true' defined herea
ptu   r31e | (#idnetf*i naeb sAlB_SnLo_nInNuTlElR NpA)L _:I Fp__t(rpu)e ({i}f
_      s| a                                   ^t
isf/usr/local/clang/include/absl/base/nullability.hi:e241d:,22 :. .note: .expanded from macro 'absl_nonnull')
 i  f241_ | s#adteifsifniee da
b      s| l        ^_
nonnull _Nonnull
      In file included from | s2/s2builderutil_s2polyline_vector_layer.cc                     ^:
18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABIn file included from Ss2/s2cell_id.ccL:_18I:
NIn file included from T../src/s2/s2cell_id.hE:R43N:
AIn file included from L../src/s2/s1angle.h_:X28(:
iIn file included from n../src/s2/s2point.hs:e27r:
tIn file included from _../src/s2/s2coder.ho:r23_:
aIn file included from s/usr/local/clang/include/absl/status/status.hs:i67g:
nIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :i29n:
sIn file included from e/usr/local/clang/include/absl/strings/cord.hr:t82_:
oIn file included from r/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:a23s:
sIn file included from i/usr/local/clang/include/absl/crc/crc32c.hg:n32_:
i/usr/local/clang/include/absl/strings/str_format.hm:p164l:,8 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t &  ,164  | & & ,i nttr*u ea,b
s      l| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
on  n536u | l l   U n u s e d ( )   {   r e t u rfna lps_e;) ;}

            | |                   ~~~~~~       ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h::241509::2247::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241 |   #509d | e f i n e   a b s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uAlTlT
R      I| B                     ^U
TE_CAPTURED_BY(thiIn file included from ss2/s2cell_id.cc):)18,:
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67\:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                                              ^~~~29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h535::323:
: /usr/local/clang/include/absl/strings/str_format.h:warning: 165passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
8:/usr/local/clang/include/absl/container/internal/btree_container.h :511warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]52
: note:   expanded from macro 'ABSL_INTERNAL_X'165
 |   i  n511t | *   a b s l _ n o n nAuBlSlL _pI_N;T
E      R| N       ^A
L_/usr/local/clang/include/absl/base/nullability.hA:T241T:R22I:B Unote: Texpanded from macro 'absl_nonnull'E
_C  A241P | T#UdReEfDi_nBeY (atbhsils_)n)o)n n u l l   _ N o n n u l l 
        |                       ^ 
      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2builderutil_s2polyline_vector_layer.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2builderutil_s2polyline_vector_layer.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h30::
29In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/strings/cord.h67::
82:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h538::2323:
:In file included from  /usr/local/clang/include/absl/crc/crc32c.h:warning: 32:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/strings/str_format.h:380:  43538: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       380  |  s t d : : s t r itnrgu&e )S;t
r      A| p                      ^p
en/usr/local/clang/include/absl/container/internal/btree_container.hd:F496o:r9m:a tnote: (macro 'ABSL_INTERNAL_X' defined heres
td:  :496s | t#rdienfgi*n ea bAsBlS_Ln_oInNnTuElRlN AdLs_tX,(
F      u| n                                          ^c
, C/usr/local/clang/include/absl/base/nullability.ha:l241l:e22e:,  note: Kexpanded from macro 'absl_nonnull'Q
ua  l241, |  #MdQeufailn,e  KaVbasllu_en,o nMnVualllu e_,N o.n.n.u)l l 
        |                       ^\

      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, inserIn file included from ts2/s2cell_id.cc_:o18r:
_In file included from a../src/s2/s2cell_id.hs:s43i:
gIn file included from n../src/s2/s1angle.h_:i28m:
pIn file included from l../src/s2/s2point.h,: 27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
&In file included from ,/usr/local/clang/include/absl/status/status.h :&67&:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ht:r29u:
eIn file included from ,/usr/local/clang/include/absl/strings/cord.h
:      82| :
  ^In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509/usr/local/clang/include/absl/crc/crc32c.h::5232::
 /usr/local/clang/include/absl/strings/str_format.hnote: :expanded from macro 'ABSL_INTERNAL_X'440
:24:   warning: 509 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       440  |  i n tA BFSPLr_iInNtTFE(RsNtAdL:_:AFTITLREI*B UaTbEs_lC_AnPoTnUnRuElDl_ BoYu(ttphuits,) )c,o n s t   F o r m a t S p e c < A r g s . . . > &\ 
f      o| r                                                   ^m
at/usr/local/clang/include/absl/container/internal/common.h,:
31      :| 9                       ^:
 note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_true' defined here:
241:22:    31 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_ltlr u_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2/s2cell_id.cc
:18:
In file included from ../src/s2/s2cell_id.h:43  :
537In file included from  | ../src/s2/s1angle.h : 28A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23In file included from N:
As2/s2builderutil_snap_functions.ccIn file included from L:_/usr/local/clang/include/absl/status/status.h18X::
(67In file included from i:
../src/s2/s2builderutil_snap_functions.hnIn file included from :s/usr/local/clang/include/absl/status/internal/status_internal.h23e::
r29tIn file included from :
_../src/s2/s1angle.hIn file included from o:/usr/local/clang/include/absl/strings/cord.hr28_:a:
82sIn file included from :
s../src/s2/s2point.hIn file included from i:/usr/local/clang/include/absl/crc/internal/crc_cord_state.hg25:n:
23,In file included from :
 ../src/s2/util/coding/coder.hiIn file included from :n/usr/local/clang/include/absl/crc/crc32c.h36s:e:
32rIn file included from :
t../src/s2/base/casts.h/usr/local/clang/include/absl/strings/str_format.h_::o34469r:
:_In file included from 20a/usr/local/clang/include/absl/log/log.h:s: s209iwarning: g:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nIn file included from 
_/usr/local/clang/include/absl/log/internal/log_impl.hi:m20  p:
469lIn file included from  | ,/usr/local/clang/include/absl/log/absl_vlog_is_on.hi :nct63o n:
SsNt/usr/local/clang/include/absl/log/internal/vlog_config.hP :r&49,i: n37&t&:F, ( warning: cttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]hr
aure*,    a
49b      s | l| i_n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~nt
o nR  ne538ugl | il s  to eu rt Ap nu dt I, n  is tt di :a :l si iz ze e(t_VrtuL eso)ig;zSe
,i
      t      | e| *                  ~~~~~                    ^
a
bs/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.hl::_509n241:o:47n22:n:u  lnote: note: lexpanded from macro 'ABSL_INTERNAL_X'expanded from macro 'absl_nonnull' 

v)  ;  
241509       |  | | #                                     ^d e
 f i n e/usr/local/clang/include/absl/base/nullability.h  :a 241b :s l22A_:Bn Sonote: Lnexpanded from macro 'absl_nonnull'_nI
NuTl  ElR241 N | _A#NLdo_enAfnTiuTlnRleI 
Ba      Ub| Ts                     ^El
__CnAoPnTnUuRlElD __BNYo(ntnhuilsl)
)      ,|                       ^ 
                      \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3:In file included from  s2/s2builderutil_snap_functions.cc:warning: 18passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2builderutil_snap_functions.h/usr/local/clang/include/absl/container/internal/btree_container.h::23511:
:In file included from 52../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2point.h
:25:
In file included from ../src/s2/util/coding/coder.h  :51136 | :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
AIn file included from B/usr/local/clang/include/absl/log/internal/log_impl.hS:In file included from L20s2/s2cell_id.cc_:
:IIn file included from 18N/usr/local/clang/include/absl/log/absl_vlog_is_on.h:
T:In file included from E63../src/s2/s2cell_id.hR:
:N43A/usr/local/clang/include/absl/log/internal/vlog_config.h:
L:In file included from _63A../src/s2/s1angle.h:T:43T28:R:
 IIn file included from warning: B../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U:
T27E:
_In file included from    C../src/s2/s2coder.h63A: | P23 T:
 UIn file included from eR/usr/local/clang/include/absl/status/status.hEx:Dp67_l:
BiIn file included from Yc/usr/local/clang/include/absl/status/internal/status_internal.h(i:tt29h :
cioIn file included from sn/usr/local/clang/include/absl/strings/cord.h)s:)t82)e:
 xIn file included from  p/usr/local/clang/include/absl/crc/internal/crc_cord_state.h r:  23 V:
L In file included from o /usr/local/clang/include/absl/crc/crc32c.h g: S32 i:
 t/usr/local/clang/include/absl/strings/str_format.h e: (503 c: o20 n: s  twarning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] c
 h a    r503\* | 
        a | bF                                                   ^so
lr_/usr/local/clang/include/absl/container/internal/common.hmna:ot31nR:an9wu:Sl ilnote:  nmacro 'ABSL_INTERNAL_IF_true' defined herefk
)(
T         *| 31                                           ^a | 
b#sd/usr/local/clang/include/absl/base/nullability.hel:f_241in:no22en :nAu Blnote: Slexpanded from macro 'absl_nonnull'L _
rIaN  wT241)E |  R# Nd/Ae/Lf _iNInFOe_L tIarNbuTse
l(      _i| nf                   ^o_
nsna/usr/local/clang/include/absl/base/nullability.hut:il241slf: i22_e:Nd o,note: n expanded from macro 'absl_nonnull'n.
u.l.  l)241
  |       i#| fd                     ^_e
sfaitnies faibesdl
_      n| o        ^n
null _NonnuIn file included from ls2/s2builderutil_s2polyline_vector_layer.ccl:
18      :
| In file included from                      ^../src/s2/s2builderutil_s2polyline_vector_layer.h
:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_aIn file included from ss2/s2builderutil_snap_functions.ccs:i18g:
nIn file included from ,../src/s2/s2builderutil_snap_functions.h :i23n:
sIn file included from e../src/s2/s1angle.hr:t28_:
oIn file included from r../src/s2/s2point.h_:a25s:
sIn file included from i../src/s2/util/coding/coder.hg:n36_:
iIn file included from m../src/s2/base/casts.hp:l34,:
 In file included from c/usr/local/clang/include/absl/log/log.ho:n209s:
tIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.h&:,20 :
&In file included from &/usr/local/clang/include/absl/log/absl_vlog_is_on.h,: 63t:
r/usr/local/clang/include/absl/log/internal/vlog_config.hu:e96,:
60      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  538 |       96  |      f r i e n d   i n t   ltorgu_ei)n;t
e      r| n                  ~~~~~a
l:/usr/local/clang/include/absl/container/internal/btree_container.h::R511e:g47i:s tnote: eexpanded from macro 'ABSL_INTERNAL_X'r
And  I511n | i t i a l i z e ( V LAoBgSSLi_tIeN*T EaRbNsAlL__nAoTnTnRuIlBlU TvE)_;C
A      P| T                                                           ^U
RED/usr/local/clang/include/absl/base/nullability.h_:B241Y:(22t:h inote: sexpanded from macro 'absl_nonnull')
))   241  |  # d e f i n e   a b s l _ n o n n u l l   _\N
o      n| n                                              ^~~~u
ll
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KVaIn file included from ls2/s2cap.ccu:e18,:
 In file included from M../src/s2/s2cap.hV:a30l:
uIn file included from e../src/s2/s1angle.h,: 28.:
.In file included from .../src/s2/s2point.h): 27 :
 In file included from  ../src/s2/s2coder.h :\23
:
      In file included from | /usr/local/clang/include/absl/status/status.h        ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERIn file included from Ns2/s2cap.ccA:L18_:
XIn file included from (../src/s2/s2cap.hi:n30s:
eIn file included from r../src/s2/s1angle.ht:_28o:
rIn file included from _../src/s2/s2point.ha:s27s:
iIn file included from g../src/s2/s2coder.hn:,23 :
iIn file included from n/usr/local/clang/include/absl/status/status.hs:e67r:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ho:r29_:
a/usr/local/clang/include/absl/strings/cord.hs:s110i:g55n:_ iwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
l, &  &110, |  vcooinIn file included from dss2/s2builderutil_snap_functions.cct : A18&p:
,p In file included from fe../src/s2/s2builderutil_snap_functions.hanl:dsC23eo,:
r
In file included from d      T../src/s2/s1angle.h| o:S  ^t28
r:
iIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hn../src/s2/s2point.h:g:509(25:c:
52oIn file included from :n../src/s2/util/coding/coder.h s:note: t36expanded from macro 'ABSL_INTERNAL_X' :

CIn file included from o../src/s2/base/casts.hr:  d34509&:
 |  In file included from  s/usr/local/clang/include/absl/log/log.h r: c209 ,:
  In file included from  s/usr/local/clang/include/absl/log/internal/log_impl.h t: d20 ::
 :In file included from As/usr/local/clang/include/absl/log/absl_vlog_is_on.hBt:Sr63Li_:
nI/usr/local/clang/include/absl/log/internal/vlog_config.hNg:T*119E R:aN15bA:sLl __warning: Antype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]To
TnRnIu  BlU119lT  | Ed _sC tAc)Po;Tn
UsR      tE | Dc                                                      ^_h
BaYr/usr/local/clang/include/absl/base/nullability.h(*t: h241aib:ss22)l:)_ n,note:  oexpanded from macro 'absl_nonnull' n
 n   u l241 l  |   #c do en fs it n  e f  ia lb es _l ;_ 
n       o | n               ^n\
u
l      l/usr/local/clang/include/absl/base/nullability.h|  :                                                   ^_241
N:o22/usr/local/clang/include/absl/container/internal/common.hn::n 32u:lnote: 9lexpanded from macro 'absl_nonnull':

       | note:                        ^macro 'ABSL_INTERNAL_IF_false' defined here241

 | #d   e32f | i#ndee faibnsel _AnBoSnLn_uIlNlT E_RNNoAnLn_uIlFl_
f      a| l                     ^s
e(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2cell_id.cc496::189:
:In file included from  ../src/s2/s2cell_id.h:note: 43macro 'ABSL_INTERNAL_X' defined here:

In file included from ../src/s2/s1angle.h:28  :
496In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
IIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hT:E29R:
NIn file included from A/usr/local/clang/include/absl/strings/cord.hL:_82X:
(In file included from F/usr/local/clang/include/absl/crc/internal/crc_cord_state.hu:n23c:
,In file included from  /usr/local/clang/include/absl/crc/crc32c.hC:a32l:
l/usr/local/clang/include/absl/strings/str_format.he:e860,: 43K:Q uwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, MQ  u860a | l ,  fKrViaelnude ,v oMiVda lAubes,l F.o.r.m)a t F l u s\h
(      F| o        ^r
matSink* absl_nonIn file included from ns2/s2cap.ccu:l18l:
 In file included from s../src/s2/s2cap.hi:n30k:
,In file included from 
../src/s2/s1angle.h      :| 28                                          ^:

In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e425f:i62n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_no  n425n | u l lf r_iNeonndn uvloli
d       | C                     ^o
pyCordToString(const/usr/local/clang/include/absl/container/internal/btree_container.h :C542o:r3d:&  warning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
c, s  In file included from t542s2/s2cell_id.ccd | :: 18: :
sAIn file included from tB../src/s2/s2cell_id.hrS:iL43n_:
gIIn file included from *N../src/s2/s1angle.h T:aE28bR:
sNIn file included from lA../src/s2/s2point.h_L:n_27oX:
n(In file included from ni../src/s2/s2coder.hun:ls23le:
 rIn file included from dt/usr/local/clang/include/absl/status/status.hs_:to67)r:
;_In file included from 
a/usr/local/clang/include/absl/status/internal/status_internal.h      s:| s29                                                             ^i:

gIn file included from n/usr/local/clang/include/absl/strings/cord.h,/usr/local/clang/include/absl/base/nullability.h: :82i241:
n:In file included from s22/usr/local/clang/include/absl/crc/internal/crc_cord_state.he::r 23t:
note: _In file included from expanded from macro 'absl_nonnull'o/usr/local/clang/include/absl/crc/crc32c.h
r:_32  a:
241s/usr/local/clang/include/absl/strings/str_format.h | s:#i867dg:en60f_:ii nmwarning: eptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] l
a,b s&l&  _,867n  | oc no nneusxltpl l &i_,cN ioftna nlFusolerl,m

a            t| | S                     ^  ^i

nk/usr/local/clang/include/absl/container/internal/btree_container.h(:s509t:r52_:f onote: rexpanded from macro 'ABSL_INTERNAL_X'm
at_  i509n | t e r n a l : : F oIn file included from  rs2/s2cap.ccAm:Ba18St:
LSIn file included from _i../src/s2/s2cap.hIn:Nk30TI:
EmIn file included from Rp../src/s2/s1angle.hNl:A*28L :
_aIn file included from Ab../src/s2/s2point.hTs:Tl27R_:
InIn file included from Bo../src/s2/s2coder.hUn:Tn23Eu:
_lIn file included from Cl/usr/local/clang/include/absl/status/status.hA :Ps67T):
U
In file included from R      /usr/local/clang/include/absl/status/internal/status_internal.hE| :D                                                           ^29_
:
B/usr/local/clang/include/absl/strings/cord.hY/usr/local/clang/include/absl/base/nullability.h:(:437t241:h:47i22:s: ) warning: )note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],expanded from macro 'absl_nonnull'
 
       241 437 |   | #  d  e  f  i  n  e     a  b  s  l  _  n  o  n  n  u  l\ l
         _|  N                                                   ^ o
 n n/usr/local/clang/include/absl/container/internal/common.h u: l32 l: 
9       : |                        ^ note: 
smacro 'ABSL_INTERNAL_IF_false' defined heret
d::   s32t | r#idnegf*i naeb sAlB_SnLo_In file included from nIs2/s2cell_id.ccnN:uT18lE:
lRIn file included from  N../src/s2/s2cell_id.hdA:sL43t_:
)IIn file included from ;F../src/s2/s1angle.h
_:      f28| a:
                                              ^lIn file included from 
s../src/s2/s2point.he:/usr/local/clang/include/absl/base/nullability.h(27:i:
241fIn file included from :_../src/s2/s2coder.h22s::a23 t:
note: iIn file included from expanded from macro 'absl_nonnull's/usr/local/clang/include/absl/status/status.h
f:i67  e:
241dIn file included from  | ,/usr/local/clang/include/absl/status/internal/status_internal.h# :d.29e.:
f.In file included from i)/usr/local/clang/include/absl/strings/cord.hn :e_82 _:
aVIn file included from bA/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs_:lA23_R:
nGIn file included from oS/usr/local/clang/include/absl/crc/crc32c.hn_:n_32u
:
l      /usr/local/clang/include/absl/strings/str_format.hl| :         ^869_
:N40o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lIn file included from 
s2/s2builderutil_s2polyline_vector_layer.cc        :| 86918                     ^ | :

 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.hs:t27r:
_In file included from f../src/s2/mutable_s2shape_index.ho:r30m:
aIn file included from t/usr/local/clang/include/absl/container/btree_map.h_:i67n:
t/usr/local/clang/include/absl/container/internal/btree_container.he:r542n:a3l:: :warning: Fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
rmat  S542i | n k IAmBpSlL*_ IaNbTsElR_NnAoLn_nXu(liln sseiIn file included from rns2/s2cap.cctk:__18;o
:
r      In file included from _| ../src/s2/s2cap.ha                                       ^:s
s30i:
/usr/local/clang/include/absl/base/nullability.hgIn file included from :n../src/s2/s1angle.h241,:: 2822i:
:nIn file included from  s../src/s2/s2point.hnote: e:expanded from macro 'absl_nonnull'r27
t:
_In file included from   o../src/s2/s2coder.h241r: | _23#a:
sdIn file included from se/usr/local/clang/include/absl/status/status.hif:gi67nn:
_eIn file included from i /usr/local/clang/include/absl/status/internal/status_internal.hma:pb29ls:
,l/usr/local/clang/include/absl/strings/cord.h _:&n480&o:,n39 n:cu olwarning: nltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s 
t_ N&o  ,n480 n | fu al ll s
 e      u,| s
                     ^i      
n| g  ^ 
po/usr/local/clang/include/absl/container/internal/btree_container.hi:n511t:e52r:  =note:  expanded from macro 'ABSL_INTERNAL_X'c
ons  t511  | v a l u e _ t y p e *A BaSbLs_lI_NnToEnRnNuAlLl_;A
T      T| R                                      ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) )a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^\

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from In file included from ../src/s2/mutable_s2shape_index.hs2/s2cap.cc::3018:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2cap.h::6730:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s1angle.h::54228::
3In file included from :../src/s2/s2point.h :27warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
542In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29A:
B/usr/local/clang/include/absl/strings/cord.hS:L501_:I52N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_X  (501i | n s e r te_xoprl_iacsisti gCnh,u niknIsteerrta_toorr_(acsosridg_ni_nitmeprln,a l&:&:,C ocrodnRsetp *& ,a bfsall_sneo,n
n      u| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
 t  r543e | e ) ; 
        |                                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
tr  u241e | )#;d
e      f| i                  ~~~~~n
e a/usr/local/clang/include/absl/container/internal/btree_container.hb:s511l:_47n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll _  N511o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBUTIn file included from Es2/s2cap.cc_:C18A:
PIn file included from T../src/s2/s2cap.hU:R30E:
DIn file included from _../src/s2/s1angle.hB:Y28(:
tIn file included from h../src/s2/s2point.hi:s27):
)In file included from )../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 504 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 \  
504       | |                                                ^~~~ 
  explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |  In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h :f27a:
lIn file included from s../src/s2/s2coder.he:)23;:

In file included from       /usr/local/clang/include/absl/status/status.h| :                       ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/btree_container.h::29496:
:9/usr/local/clang/include/absl/strings/cord.h:: 507:note: 43macro 'ABSL_INTERNAL_X' defined here:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
496 | #d  e507f | i n e   AvBoSiLd_ IINnTiEtRTNrAeLe_(Xc(oFrudn_ci,n tCearlnlaele:,: CKoQrudaRle,p *M Qaubasll,_ nKoVnanluulel,  tMrVeael)u;e
,       | .                                          ^.
.)/usr/local/clang/include/absl/base/nullability.h : 241 : 22 :\ 
      note: | expanded from macro 'absl_nonnull'        ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/btree_container.h::67544:
:In file included from 3/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
warning: /usr/local/clang/include/absl/strings/cord.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
525:35:   warning: 544type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
  AB  S525L | _ I N T EaRbNsAlL:_:Xc(oirnds_eirntt_eorrn_aals:s:iCgonr,d Rienps*e ratb_solr__nauslsliagbnl_ei mcpulr,r e&n&t,_ lceoanfs_t  =& ,n utlrlupet,r
;      
|         ^| 
                                  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/base/nullability.h509::25752::23 : note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'absl_nullable'

  257   | 509# | d e f i n e   a b s lA_BnSuLl_lIaNbTlEeR N_ANLu_lAlTaTbRlIeB
U      T| E                      ^_
CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INIn file included from Ts2/s2cap.ccE:R18N:
AIn file included from L../src/s2/s2cap.h_:X30(:
iIn file included from n../src/s2/s1angle.hs:e28r:
tIn file included from _../src/s2/s2point.ho:r27_:
aIn file included from s../src/s2/s2coder.hs:i23g:
nIn file included from ,/usr/local/clang/include/absl/status/status.h :i67n:
sIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hr:t29_:
o/usr/local/clang/include/absl/strings/cord.hr:_582a:s37s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
impl,   582& | & ,   c oenxsptl i&c,i tt rCuheu,n
k      R| a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ge  (545c | o n s t   C o r d *   a b s l _ n o nfnaullsle )c;o
r      d| )                  ~~~~~~ 
: c/usr/local/clang/include/absl/container/internal/btree_container.ho:r509d:_47(:c onote: rexpanded from macro 'ABSL_INTERNAL_X'd
) {  }509
 |        |                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nAeT TaRbIsBlU_TnEo_nCnAuPlTlU R_ENDo_nBnYu(ltlh
i      s| )                     ^)
,                        \
      |                                               ^~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2cap.cc::54418::
3In file included from :../src/s2/s2cap.h :30warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s1angle.h:/usr/local/clang/include/absl/container/internal/btree_container.h28::
511In file included from :../src/s2/s2point.h52::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'ABSL_INTERNAL_X':
23:
In file included from /usr/local/clang/include/absl/status/status.h:  67511:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 588 : 17 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IN  T588E | R N A L _cAoTnTsRtI BCUoTrEd_*C AaPbTsUlR_EnDo_nBnYu(ltlh icso)r)d)_ ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e\f
i      n| e                                                   ^ 
ab/usr/local/clang/include/absl/container/internal/common.hs:l32_:n9o:n nnote: umacro 'ABSL_INTERNAL_IF_false' defined herel
l _   N32o | n#nduelfli
n      e|                       ^A
BSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
In file included from       s2/s2cap.cc| :        ^18
:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2builderutil_s2polyline_vector_layer.ccn:u18l:
lIn file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h_:N27o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INIn file included from Ts2/s2cap.ccE:R18N:
AIn file included from L../src/s2/s2cap.h_:X30(:
FIn file included from u../src/s2/s1angle.hn:c28,:
 In file included from C../src/s2/s2point.ha:l27l:
eIn file included from e../src/s2/s2coder.h,: 23K:
QIn file included from u/usr/local/clang/include/absl/status/status.ha:l67,:
 In file included from M/usr/local/clang/include/absl/status/internal/status_internal.hQ:u29a:
l/usr/local/clang/include/absl/strings/cord.h,: 655K:V39a:l uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 MVa  l655u | e ,   . .e.x)p l i c i t\ 
C      h| a        ^r
Iterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABIn file included from Ss2/s2cap.ccL:_18I:
NIn file included from T../src/s2/s2cap.hE:R30N:
AIn file included from L../src/s2/s1angle.h_:X28(:
iIn file included from n../src/s2/s2point.hs:In file included from e27s2/s2builderutil_snap_functions.ccr:
:tIn file included from _18../src/s2/s2coder.ho:
:rIn file included from 23_../src/s2/s2builderutil_snap_functions.h:
a:In file included from s23/usr/local/clang/include/absl/status/status.hs:
i:gIn file included from 67n../src/s2/s1angle.h:
,:In file included from  28/usr/local/clang/include/absl/status/internal/status_internal.hi:
:nIn file included from 29s../src/s2/s2point.h:
e:/usr/local/clang/include/absl/strings/cord.hr25:t:
667_In file included from :o../src/s2/util/coding/coder.h44r::_36 a:
warning: sIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s../src/s2/base/casts.h
i:g34n:
  _In file included from 667i/usr/local/clang/include/absl/log/log.h | m: p209 l:
,sIn file included from  t&a/usr/local/clang/include/absl/log/internal/log_impl.h&t:,i20 cc:
 oIn file included from Cno/usr/local/clang/include/absl/log/absl_vlog_is_on.hsr:td 63 &:
A,/usr/local/clang/include/absl/log/internal/vlog_config.hd :vta133rnu:cee37,A:
n       dwarning: | Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  ^e

ad/usr/local/clang/include/absl/container/internal/btree_container.h(:  C509133h:a | 52ri:In ttnote: e expanded from macro 'ABSL_INTERNAL_X'rR
aetgoi  rs509*t |  e a rbA s nl _d nI on in tn iuAalBllSi Lzi_teI,(N TVsLEioRzNgeA_SLti_ tAneT_*Tb RyaItbBesUslT)_E;_n
Co      An| Pn                                           ^Tu
UlRl/usr/local/clang/include/absl/base/nullability.h E:Dv241_):B;22Y
:(       t| note: h                                    ^expanded from macro 'absl_nonnull'i

s)  /usr/local/clang/include/absl/base/nullability.h)241:, |  241# : d e22 f: i  nnote:  eexpanded from macro 'absl_nonnull'   
a b   s241 l |  _# nd oe nf ni unl el    a_ bN so\ln
_n      nu| ol                                                   ^nl

n      u/usr/local/clang/include/absl/container/internal/common.h| l:                     ^l31
 :_9N:o nnote: nmacro 'ABSL_INTERNAL_IF_true' defined hereu
ll
         31|  |                      ^#
define ABSIn file included from Ls2/s2cap.cc_:I18N:
TIn file included from E../src/s2/s2cap.hR:N30A:
LIn file included from _../src/s2/s1angle.hI:F28_:
tIn file included from r../src/s2/s2point.hu:e27(:
iIn file included from f../src/s2/s2coder.h_:s23a:
tIn file included from i/usr/local/clang/include/absl/status/status.hs:f67i:
eIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h,: 29.:
./usr/local/clang/include/absl/strings/cord.h.:)674 :i37f:_ swarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
isfi  e674d | 
        | sIn file included from         ^ts2/s2builderutil_snap_functions.cc
a:t18i:
cIn file included from  ../src/s2/s2builderutil_snap_functions.hv:o23i:
dIn file included from  ../src/s2/s1angle.hA:In file included from d28s2/s2builderutil_s2polyline_vector_layer.ccv:
:aIn file included from 18n../src/s2/s2point.h:
c:In file included from e25../src/s2/s2builderutil_s2polyline_vector_layer.h(:
:CIn file included from 27h../src/s2/util/coding/coder.h:
a:In file included from r36../src/s2/mutable_s2shape_index.hI:
:tIn file included from 30e../src/s2/base/casts.h:
r:In file included from a34/usr/local/clang/include/absl/container/btree_map.ht:
:oIn file included from 67r/usr/local/clang/include/absl/log/log.h:
*:/usr/local/clang/include/absl/container/internal/btree_container.h 209:a:
546bIn file included from :s/usr/local/clang/include/absl/log/internal/log_impl.h3l::_20 n:
warning: oIn file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n/usr/local/clang/include/absl/log/absl_vlog_is_on.h
n:u63l:
l  /usr/local/clang/include/absl/log/internal/vlog_config.h 546:i | t157 ,:  11As:Bi Szwarning: Letype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]__
ItN Tn  E_R157bN | yAVtLLe_oXsg()Si;int
es*       ea| rb                                    ^ts_
lo_rn/usr/local/clang/include/absl/base/nullability.h_ua:lsl241sa:ib22gl:ne , note:  Sexpanded from macro 'absl_nonnull'ie
tnVs  Me241or | dtu#_ldeoeLrf_iiasnsstieHg ena_abidsmFlpo_lrn,To en&sn&tu,Ol nlcl oy_n(Ns
ot      n | n          ^&u
,l lt/usr/local/clang/include/absl/base/nullability.hr
:u      257e| :,                     ^23

:       | note:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nullable'

    547257 |  |  # d e f i n e   a b s l _ n u l l atbrluee )_;N
u      l| l                  ~~~~~a
ble/usr/local/clang/include/absl/container/internal/btree_container.h
:      509| :                      ^47
: note: expanded from macro 'ABSL_INTERNAL_X'
  In file included from 509s2/s2builderutil_snap_functions.cc | : 18 :
 In file included from  ../src/s2/s2builderutil_snap_functions.h : 23 :
 In file included from  ../src/s2/s1angle.h :A28B:
SIn file included from L../src/s2/s2point.h_:In file included from I25s2/s2cap.ccN:
:TIn file included from 18E../src/s2/util/coding/coder.h:
R:In file included from N36../src/s2/s2cap.hA:
:LIn file included from 30_../src/s2/base/casts.h:
A:In file included from T34../src/s2/s1angle.hT:
:RIn file included from 28I/usr/local/clang/include/absl/log/log.h:
B:In file included from U209../src/s2/s2point.hT:
:EIn file included from 27_/usr/local/clang/include/absl/log/internal/log_impl.h:
C:In file included from A20../src/s2/s2coder.hP:
:TIn file included from 23U/usr/local/clang/include/absl/log/absl_vlog_is_on.h:
R:In file included from E63/usr/local/clang/include/absl/status/status.hD:
:_/usr/local/clang/include/absl/log/internal/vlog_config.h67B::
Y158In file included from (:/usr/local/clang/include/absl/status/internal/status_internal.ht15:h:29i :
swarning: /usr/local/clang/include/absl/strings/cord.h)type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:)
730,: 36   :158   |  warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
    V   L 730o  | g  S  i  t  e e* x  pa lb is cl i_ tn  u\Cl
hl      aa| rb                                              ^~~~Rl
aen gve)(;c/usr/local/clang/include/absl/container/internal/btree_container.h
o:n      546s| :t              ^3 
:C /usr/local/clang/include/absl/base/nullability.ho:warning: r257passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d:
*23/usr/local/clang/include/absl/container/internal/btree_container.h ::a 511b:note: s52expanded from macro 'absl_nullable'l:
_ n  note: o257expanded from macro 'ABSL_INTERNAL_X'n | 
n#udl  el511f  | ic no er  d a) b  s: l  _c no urAldBl_Sa(Lbc_loIerN dT_)EN Ru{Nl}Al
La      _b| Al                                   ^Te
T
R      /usr/local/clang/include/absl/base/nullability.hI| :B                      ^241U
:T22E:_ Cnote: Aexpanded from macro 'absl_nonnull'P
TU  R241E | D#_dBeYf(itnhei sa)b)s)l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
  \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABIn file included from Ss2/s2cap.ccL:_18I:
NIn file included from T../src/s2/s2cap.hE:R30N:
AIn file included from L../src/s2/s1angle.h_:I28F:
_In file included from t../src/s2/s2point.hr:u27e:
(In file included from i../src/s2/s2coder.hf:_23s:
aIn file included from t/usr/local/clang/include/absl/status/status.hi:s67f:
iIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hd:,29 :
./usr/local/clang/include/absl/strings/cord.h.:.736): 17i:f _warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tis  f736i | e d 
        | c        ^o
nst Cord* aIn file included from bs2/s2builderutil_s2polyline_vector_layer.ccs:l18_:
nIn file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hn:n27u:
lIn file included from l../src/s2/mutable_s2shape_index.h :c30o:
rIn file included from d/usr/local/clang/include/absl/container/btree_map.h_:;67
:
      | /usr/local/clang/include/absl/container/internal/btree_container.h                ^:
546:3/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'absl_nonnull'
  546   | 241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oXn(niunlsle r_tN_oonrn_ualsls
i      g| n                     ^,
 insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERIn file included from Ns2/s2cap.ccA:L18_:
AIn file included from T../src/s2/s2cap.hT:R30I:
BIn file included from U../src/s2/s1angle.hT:E28_:
CIn file included from A../src/s2/s2point.hP:T27U:
RIn file included from E../src/s2/s2coder.hD:_23B:
YIn file included from (/usr/local/clang/include/absl/status/status.ht:h67i:
sIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h):)29 :
 /usr/local/clang/include/absl/strings/cord.h : 795 : 43 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       795  |      f r i e n\d
       v| o                                              ^~~~i
d AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s1angle.h549::283:
:In file included from  ../src/s2/s2point.h:warning: 27:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h549: | 67 :
 In file included from A/usr/local/clang/include/absl/status/internal/status_internal.hB:S29L:
_/usr/local/clang/include/absl/strings/cord.hI:N898T:E27R:N Awarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
X(in  s898e | r t _forri_eansds icgonn,s ti nCsoerrdtz_Ionrf_oa*s saibgsnl__inmuplll,a b&l&e,  G&e&t,C ofradlzsIen,f
o      F| o  ^r
Te/usr/local/clang/include/absl/container/internal/btree_container.hs:t509i:n52g:( 
note:       expanded from macro 'ABSL_INTERNAL_X'| 
                          ^
  509/usr/local/clang/include/absl/base/nullability.h | : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
    A257B | S#Ld_eIfNiTnEeR NaAbLs_lA_TnTuRlIlBaUbTlEe_ C_ANPuTlUlRaEbDl_eB
Y      (| t                      ^h
is)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_aIn file included from ss2/s2cap.ccs:i18g:
nIn file included from ,../src/s2/s2cap.h :i30n:
sIn file included from e../src/s2/s1angle.hr:t28_:
oIn file included from r../src/s2/s2point.h_:a27s:
sIn file included from i../src/s2/s2coder.hg:n23_:
iIn file included from m/usr/local/clang/include/absl/status/status.hp:l67,:
 In file included from &/usr/local/clang/include/absl/status/internal/status_internal.h&:,29 :
&/usr/local/clang/include/absl/strings/cord.h&:,927 :f43a:l swarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],

      |   ^
  927 | /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _ I N T ECRoNrAdLR_eApT*T RaIbBsUlT_En_uClAlPaTbUlReE Dr_eBpY)(;t
h      i| s                                          ^)
)) /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b\s
l      _| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.ha:b32l:e9 :_ Nnote: umacro 'ABSL_INTERNAL_IF_false' defined herel
lab   l32e | 
#      d| e                      ^f
ine ABSL_INTERNAL_IF_fIn file included from as2/s2cap.ccl:s18e:
(In file included from i../src/s2/s2cap.hf:_30s:
aIn file included from t../src/s2/s1angle.hi:s28f:
iIn file included from e../src/s2/s2point.hd:,27 :
.In file included from .../src/s2/s2coder.h.:)23 :
_In file included from _/usr/local/clang/include/absl/status/status.hV:A67_:
AIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hG:S29_:
_/usr/local/clang/include/absl/strings/cord.h
:      929| :        ^26
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnIn file included from us2/s2builderutil_s2polyline_vector_layer.ccl:l18 :
rIn file included from h../src/s2/s2builderutil_s2polyline_vector_layer.hs:)27;:

In file included from       ../src/s2/mutable_s2shape_index.h| :                         ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::67241:
:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 551:note: 79expanded from macro 'absl_nonnull':
 warning:   241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
#def  i551n | e   aAbBsSlL__nIoNnTnEuRlNlA L__NXo(ninnuslelr
t      _| o                     ^r
_assign, insert_or_assign_iIn file included from ms2/s2cap.ccp:l18,:
 In file included from &../src/s2/s2cap.h&:,30 :
&In file included from &../src/s2/s1angle.h,: 28f:
aIn file included from l../src/s2/s2point.hs:e27,:
 In file included from t../src/s2/s2coder.hr:u23e:
)In file included from ;/usr/local/clang/include/absl/status/status.h
:      67| :
                                                                              ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/btree_container.h:
:496/usr/local/clang/include/absl/strings/cord.h::9932:: 17:note:  macro 'ABSL_INTERNAL_X' defined here
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  496 |   #932d | e f i n ec oAnBsStL _cIhNaTrE*R NaAbLs_lX_(nFuulnlca,b lCea ldlaetea,( )K Qcuoanls,t ;M
Q      u| a                ^l
, /usr/local/clang/include/absl/base/nullability.hK:V257a:l23u:e ,note:  expanded from macro 'absl_nullable'M
Va  l257u | e#,d e.f.i.n)e   a b s l\_
n      u| l        ^l
able _Nullable
      |                       ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data,/usr/local/clang/include/absl/container/internal/btree_container.h :s551i:z3e:_ twarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
);
        | 551                              ^ | 
  /usr/local/clang/include/absl/base/nullability.hA:B257S:L23_:I Nnote: Texpanded from macro 'absl_nullable'E
RN  A257L | _#Xd(eifnisneer ta_bosrl__ansuslilganb,l ei n_sNeurltl_aobrl_ea
s      s| i                      ^g
n_impl, &&, &&, faIn file included from ls2/s2cap.ccs:e18,:
 In file included from t../src/s2/s2cap.hr:u30e:
)In file included from ;../src/s2/s1angle.h
:      28| :
  ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509../src/s2/s2coder.h::5223::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'ABSL_INTERNAL_X'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
509 | /usr/local/clang/include/absl/strings/cord.h : 935 : 11 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S935L | _ I N T EcRhNaArL*_ AaTbTsRlI_BnUoTnEn_uClAlP TsUeRtE_Dd_aBtYa((tshiizse)_)t,  n ) ;     / /   W r i t e   d a t a   t o   t h\e
       r| e                                                   ^s
ul/usr/local/clang/include/absl/container/internal/common.ht:
32      :| 9          ^:
 note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_false' defined here:
241:22:    32 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_lfla l_sNeo(ninfu_lsla
t      i| s                     ^f
ied, ...) __VA_ARGS__
In file included from       s2/s2cap.cc| :        ^18
:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2builderutil_s2polyline_vector_layer.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2builderutil_s2polyline_vector_layer.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h30::
29In file included from :
/usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/strings/cord.h67::
937/usr/local/clang/include/absl/container/internal/btree_container.h::35551:: 3:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  937 |    551  |     aAbBsSlL:_:IcNoTrEdR_NiAnLt_eXr(nianls:e:rCto_rodrR_eaps*s iagbns,l _innuslelratb_loer _tarsesei(g)n _ciomnpslt,; 
&      &| ,                                  ^ 
&&/usr/local/clang/include/absl/base/nullability.h,: 257f:a23l:s enote: ,expanded from macro 'absl_nullable' 
tr  u257e | )#;d
e      f| i  ^n
e /usr/local/clang/include/absl/container/internal/btree_container.ha:b511s:l52_:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
abl  e511  | _ N u l l a b l e 
       A| B                      ^S
L_INTERNAL_ATTRIBUTEIn file included from _s2/s2cap.ccC:A18P:
TIn file included from U../src/s2/s2cap.hR:E30D:
_In file included from B../src/s2/s1angle.hY:(28t:
hIn file included from i../src/s2/s2point.hs:)27):
)In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 938 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
\
      |                                                      ^938
 |  /usr/local/clang/include/absl/container/internal/common.h : 31 :a9b:s lnote: :macro 'ABSL_INTERNAL_IF_true' defined here:
cor   d31_ | i#ndteefrinnael :A:BCSoLr_dIRNeTpE*R NaAbLs_lI_Fn_otnrnuuel(li fa_ss_attriesef(i)e dc,o n.s.t.;)
       i| f                                  ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: 
expanded from macro 'absl_nonnull'      
|         ^  
241 | #define absIn file included from ls2/s2builderutil_s2polyline_vector_layer.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_s2polyline_vector_layer.hu:l27l:
 In file included from _../src/s2/mutable_s2shape_index.hN:o30n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l67
:
      | /usr/local/clang/include/absl/container/internal/btree_container.h                     ^:
551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551In file included from  | s2/s2cap.cc : 18A:
BIn file included from S../src/s2/s2cap.hL:_30I:
NIn file included from T../src/s2/s1angle.hE:R28N:
AIn file included from L../src/s2/s2point.h_:X27(:
iIn file included from n../src/s2/s2coder.hs:e23r:
tIn file included from _/usr/local/clang/include/absl/status/status.ho:r67_:
aIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hs:i29g:
n/usr/local/clang/include/absl/strings/cord.h,: 939i:n17s:e rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
or_  a939s | s i g n _ciomnpslt,  c&h&a,r *& &a,b sfla_lnsoen,n utlrlu ea)s;_
c      h| a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r
s()/usr/local/clang/include/absl/container/internal/btree_container.h :c511o:n47s:t ;note: 
expanded from macro 'ABSL_INTERNAL_X'      
|                 ^
  /usr/local/clang/include/absl/base/nullability.h511: | 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241A | B#SdLe_fIiNnTeE RaNbAsLl__AnToTnRnIuBlUlT E__NCoAnPnTuUlRlE
D      _| B                     ^Y
(this)))          In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
\In file included from 
../src/s2/s2point.h      :| 27                                              ^~~~:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl/usr/local/clang/include/absl/container/internal/btree_container.h_:n552u:l79l:a bwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
 _Nu  l552l | a b lAeB
S      L| _                      ^I
NTERNAL_X(insert_or_assign, insert_or_assign_implIn file included from ,s2/s2cap.cc :&18&:
,In file included from  ../src/s2/s2cap.h&:&30,:
 In file included from t../src/s2/s1angle.hr:u28e:
,In file included from  ../src/s2/s2point.hf:a27l:
sIn file included from e../src/s2/s2coder.h):;23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                                                              ^:
67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/internal/status_internal.h::49629::
9:/usr/local/clang/include/absl/strings/cord.h :950note: :macro 'ABSL_INTERNAL_X' defined here18
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]496
 | #de  f950i | n e   A BCSoLr_dIRNeTpEFRlNaAtL*_ Xa(bFsuln_cn,o nCnaulllle eM,a kKeQFulaalt,W iMtQhuEaxlt,r aKCVaaplaucei,t yM(Vsailzuee_,t  .e.x.t)r a ) ; 
       \| 
                 ^      
|         ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(/usr/local/clang/include/absl/container/internal/btree_container.hCor:d552R:e3p:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  o552n | n u lAlB SrLe_pI,N TcEoRnNsAtL _CXo(ridnzsUeprdta_toerS_caospsei&g ns,c oipnes)e;r
t      _| o                          ^r
_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:_ inote: mexpanded from macro 'absl_nonnull'p
l,   241& | &#,d e&f&i,n et raubes,l _fnaolnsneu)l;l
       _| N  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l509l:
52      :|                       ^
note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_In file included from Is2/s2cap.ccN:T18E:
RIn file included from N../src/s2/s2cap.hA:L30_:
AIn file included from T../src/s2/s1angle.hT:R28I:
BIn file included from U../src/s2/s2point.hT:E27_:
CIn file included from A../src/s2/s2coder.hP:T23U:
RIn file included from E/usr/local/clang/include/absl/status/status.hD:_67B:
YIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.ht:h29i:
s/usr/local/clang/include/absl/strings/cord.h):)961,: 34 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      961  |          v o i d   S e t T\r
e      e| O                                                   ^r
Em/usr/local/clang/include/absl/container/internal/common.hp:t31y:(9C:o rnote: dmacro 'ABSL_INTERNAL_IF_true' defined hereR
ep*    31a | b#sdle_fniunlel aAbBlSeL _rIeNpT,E
R      N| A                                 ^L
_I/usr/local/clang/include/absl/base/nullability.hF:_257t:r23u:e (note: iexpanded from macro 'absl_nullable'f
_s  a257t | i#sdfeifeidn,e  .a.b.s)l _infu_lslaatbilsef i_eNdu
l      l| a        ^b
le
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2cap.cc::6718:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2cap.h552::303:
:In file included from  ../src/s2/s1angle.h:warning: 28'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h  :55223 | :
 In file included from  /usr/local/clang/include/absl/status/status.hA:B67S:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hI:N29T:
E/usr/local/clang/include/absl/strings/cord.hR:N968A:L31_:X (warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
sert  _968o | r _ a s sviogind,  Eimnpslearcte_Torre_ea(sCsoirgdnR_eipm*p la,b s&l&_,n o&n&n,u ltlr uree,p ,f aMlesteh)o;d
I      d| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
tif/usr/local/clang/include/absl/container/internal/btree_container.hi:e509r: 47m:e tnote: hexpanded from macro 'ABSL_INTERNAL_X'o
d);  
509       | |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eA TaTbRsIlB_UnToEn_nCuAlPlT U_RNEoDn_nBuYl(lt
h      i| s                     ^)
),               In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30 :
\In file included from 
../src/s2/s1angle.h      :| 28                                              ^~~~:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 552/usr/local/clang/include/absl/status/status.h::367::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :29passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/btree_container.h::972511::3152::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    972511 |  |         v o i d   E mApBlSaLc_eITNrTeEeR(NCAoLr_dARTeTpR*I BaUbTsEl__CnAoPnTnUuRlElD _rBeYp(,t hciosn)s)t)  I n l i n e D a t a &   p a r e n t , 
        |                                ^ 
\
/usr/local/clang/include/absl/base/nullability.h      :| 241                                                   ^:
22: /usr/local/clang/include/absl/container/internal/common.h:note: 32expanded from macro 'absl_nonnull':
9:   241note:  | macro 'ABSL_INTERNAL_IF_false' defined here#
def   i32n | e# daebfsiln_en oAnBnSuLl_lI N_TNEoRnNnAuLl_lI
F      _| f                     ^a
lse(if_satisfied, ...) _In file included from _s2/s2cap.ccV:A18_:
AIn file included from R../src/s2/s2cap.hG:S30_:
_In file included from 
../src/s2/s1angle.h      :| 28        ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2builderutil_s2polyline_vector_layer.ccb:s18l:
_In file included from n../src/s2/s2builderutil_s2polyline_vector_layer.hu:l27l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e30 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.hu:l67l:
a/usr/local/clang/include/absl/container/internal/btree_container.hb:l553e:
78      :|                        ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 | In file included from  s2/s2cap.cc :A18B:
SIn file included from L../src/s2/s2cap.h_:I30N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hX:(27i:
nIn file included from s../src/s2/s2coder.he:r23t:
_In file included from o/usr/local/clang/include/absl/status/status.hr:_67a:
sIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hi:g29n:
,/usr/local/clang/include/absl/strings/cord.h :i979n:s30e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_a  s979s | i g n _ i m p l ,   & & ,   & & ,   t r uCeo,r dtRreupe*) ;a
b      s| l                                                                             ^_
no/usr/local/clang/include/absl/container/internal/btree_container.hn:n496u:l9l:  rnote: emacro 'ABSL_INTERNAL_X' defined herep
, c  o496n | s#td eCfoirndez UApBdSaLt_eISNcToEpReN&A Ls_cXo(pFeu,n
c      ,|                               ^C
al/usr/local/clang/include/absl/base/nullability.hl:e241e:,22 :K Qnote: uexpanded from macro 'absl_nonnull'a
l,   241M | Q#udaelf,i nKeV aalbusel,_ nMoVnanluulel,  _.N.o.n)n u l l 
       \| 
                     ^      
|         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/container/internal/btree_container.h22::553 :3note: :expanded from macro 'absl_nonnull' 
warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #de  f553i | n e  AaBbSsLl__InNoTnEnRuNlAlL __XN(oinnnsuelrlt
_      o| r                     ^_
assign, insert_or_In file included from as2/s2cap.ccs:s18i:
gIn file included from n../src/s2/s2cap.h_:i30m:
pIn file included from l../src/s2/s1angle.h,: 28&:
&In file included from ,../src/s2/s2point.h :&27&:
,In file included from  ../src/s2/s2coder.ht:r23u:
eIn file included from ,/usr/local/clang/include/absl/status/status.h :t67r:
uIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      | /usr/local/clang/include/absl/strings/cord.h  ^:
984:36/usr/local/clang/include/absl/container/internal/btree_container.h:: 509:warning: 52:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  984 |    509  |     v o i d   A p p eAnBdSTLr_eIeNTToETRrNeAeL(_CAoTrTdRRIeBpU*T Ea_bCsAlP_TnUoRnEnDu_lBlY (ttrheies,) )M,e t h o d I d e n t i f i e r   m e t h o d ) ; 
\      
|                                          ^| 
                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/container/internal/common.h::2231:: 9:note:  expanded from macro 'absl_nonnull'
note: macro 'ABSL_INTERNAL_IF_true' defined here  
241 | #   d31e | f#idneef ianbes lA_BnSoLn_nIuNlTlE R_NNAoLn_nIuFl_lt
r      u| e                     ^(
if_satisfied, ..In file included from .s2/s2cap.cc): 18i:
fIn file included from _../src/s2/s2cap.hs:a30t:
iIn file included from s../src/s2/s1angle.hf:i28e:
dIn file included from 
../src/s2/s2point.h      :| 27        ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:In file included from 30s2/s2builderutil_s2polyline_vector_layer.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2builderutil_s2polyline_vector_layer.h
:27:
In file included from ../src/s2/mutable_s2shape_index.h  :98530 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67v:
o/usr/local/clang/include/absl/container/internal/btree_container.hi:d553 :A3p:p ewarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
Tree(  C553o | r d RAeBpS*L _aIbNsTlE_RnNoAnLn_uXl(li ntsreeret,_ oMre_tahsosdiIgdne,n tiinfsieerrt _moert_haosds)i;g
n      _| i                             ^m
pl/usr/local/clang/include/absl/base/nullability.h,: 241&:&22,:  &note: &expanded from macro 'absl_nonnull',
 t  r241u | e#,d etfriunee) ;a
b      s| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
non/usr/local/clang/include/absl/container/internal/btree_container.hn:u509l:l47 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l509
 |        |                       ^ 
       ABSL_INTIn file included from Es2/s2cap.ccR:N18A:
LIn file included from _../src/s2/s2cap.hA:T30T:
RIn file included from I../src/s2/s1angle.hB:U28T:
EIn file included from ../src/s2/s2point.h_:C27A:
PIn file included from T../src/s2/s2coder.hU:R23E:
DIn file included from _/usr/local/clang/include/absl/status/status.hB:Y67(:
tIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.hi:s29):
)/usr/local/clang/include/absl/strings/cord.h,: 986 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      986  |          v o i d   P r\e
p      e| n                                              ^~~~d
TreeToI/usr/local/clang/include/absl/container/internal/btree_container.hn:l553i:n3e:d (warning: Cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
r/usr/local/clang/include/absl/container/internal/btree_container.hd:R511e:p52*:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  o511n | n u l l   t r e e , 
A      B| S                                       ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'A
TT  R241I | B#UdTeEf_iCnAeP TaUbRsElD__nBoYn(ntuhlils )_)N)o n n u l l 
        |                       ^ 
              \
      | In file included from                                                    ^s2/s2cap.cc
:18:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2cap.h31::309:
:In file included from  ../src/s2/s1angle.h:note: 28macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from ../src/s2/s2point.h:27   :
31In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
AIn file included from B/usr/local/clang/include/absl/status/internal/status_internal.hS:L29_:
I/usr/local/clang/include/absl/strings/cord.hN:T988E:R37N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
F_tr  u988e | ( i f _ svaotiids fPireedp,e n.d.T.r)e eiTfo_Tsraetei(sCfoireddR
e      p| *        ^ 
absl_nonnulIn file included from ls2/s2builderutil_s2polyline_vector_layer.cc :t18r:
eIn file included from e../src/s2/s2builderutil_s2polyline_vector_layer.h,: 27M:
eIn file included from t../src/s2/mutable_s2shape_index.hh:o30d:
IIn file included from d/usr/local/clang/include/absl/container/btree_map.he:n67t:
i/usr/local/clang/include/absl/container/internal/btree_container.hf:i553e:r3 :m ewarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
od);
        553|  |                                     ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | X#(dienfsienret _aobrs_la_snsoingnnu,l li n_sNeorntn_uolrl_
a      s| s                     ^i
gn_impl, &&, &&In file included from ,s2/s2cap.cc :t18r:
uIn file included from e../src/s2/s2cap.h,: 30t:
rIn file included from u../src/s2/s1angle.he:)28;:

In file included from       ../src/s2/s2point.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~27
:
In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/container/internal/btree_container.h23::
511In file included from :/usr/local/clang/include/absl/status/status.h47::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'ABSL_INTERNAL_X':
29:
/usr/local/clang/include/absl/strings/cord.h:  989511: | 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       989A | B S L _ IvNoTiEdR NPArLe_pAeTnTdRTIrBeUeT(EC_oCrAdPRTeUpR*E Da_bBsYl(_tnhoinsn)u)l)l   t r e e ,   M e t h o d I d e n t i f i e r  \m
e      t| h                                              ^~~~o
d);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 555../src/s2/s2coder.h::323::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :67passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  /usr/local/clang/include/absl/strings/cord.h555: | 999 : 28A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT  E999R | N A L _ Xv(oiinds eCrotp_yoTro_Aarsrsaiyg(nc,h airn*s earbts_lo_rn_oansnsuilgln _dhsitn)t _ciomnpslt,; 
c      o| n                           ^s
t /usr/local/clang/include/absl/base/nullability.h&:,241
:      22| :  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.h
:509:  52241: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e509  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBUTE_CAPTURED_BY(this)),      In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27\:

In file included from       ../src/s2/s2coder.h| :                                                   ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/common.h::6732:
:In file included from 9/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hmacro 'ABSL_INTERNAL_IF_false' defined here:
1012:37:    32 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin e1012  | A B S L _aIbNsTlE:R:NcAoLr_dI_Fi_nftaelrsnea(li:f:_CsoartdizsIfnifeod*,  a.b.s.l)_ n_u_lVlAa_bAlReG Sc_o_r
d      z| _        ^i
nfo() constIn file included from  s2/s2builderutil_s2polyline_vector_layer.cc{:
18      :
| In file included from                                     ^../src/s2/s2builderutil_s2polyline_vector_layer.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/mutable_s2shape_index.h257::3023:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:note: 67expanded from macro 'absl_nullable':

/usr/local/clang/include/absl/container/internal/btree_container.h:  555257: | 3#:d ewarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ne   a555b | s l _AnBuSlLl_aIbNlTeE R_NNAuLl_lXa(bilnes
e      r| t                      ^_
or_assign, insert_orIn file included from _s2/s2cap.cca:s18s:
iIn file included from g../src/s2/s2cap.hn:_30h:
iIn file included from n../src/s2/s1angle.ht:_28i:
mIn file included from p../src/s2/s2point.hl:,27 :
cIn file included from o../src/s2/s2coder.hn:s23t:
 In file included from &/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from   ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::5111017::5251::  note: warning: expanded from macro 'ABSL_INTERNAL_X'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  511  | 1017  |          v o i d  AsBeStL__cIoNrTdEzR_NiAnLf_oA(TcToRrIdB_UiTnEt_eCrAnPaTlU:R:ECDo_rBdYz(Itnhfios*) )a)b s l _ n o n n u l l   c o r d z _ i n f o )   {\

            | |                                                   ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/common.h::24132::229::  note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_false' defined here

  241    | 32# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_uflall
s      e| (                     ^i
f_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* In file included from as2/s2builderutil_s2polyline_vector_layer.ccb:s18l:
_In file included from n../src/s2/s2builderutil_s2polyline_vector_layer.ho:n27n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30r:
eIn file included from p/usr/local/clang/include/absl/container/btree_map.h,:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                                                       ^:
558:3/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
note: expanded from macro 'absl_nonnull'
  558   | 241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oXn(niunlsle r_tN_oonrn_ualsls
i      g| n                     ^,
 insert_or_aIn file included from ss2/s2cap.ccs:i18g:
nIn file included from _../src/s2/s2cap.hh:i30n:
tIn file included from _../src/s2/s1angle.hi:m28p:
lIn file included from ,../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.ht: 23&:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67  ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
509:/usr/local/clang/include/absl/strings/cord.h52::1050 :45note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  509 |    1050  |               A B S L _ I N T E R N A L _ A T T R IaBbUsTlE:_:CsAtPrTiUnRgE_Dv_iBeYw(*t haibss)l)_,n o n n u l l   f r a g m e n t ) ; 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                                                   ^:
 note: /usr/local/clang/include/absl/container/internal/common.hexpanded from macro 'absl_nonnull':
32:9  :241  | note: #macro 'ABSL_INTERNAL_IF_false' defined hered
efi   n32e |  #adbesfli_nneo nAnBuSlLl_ I_NNToEnRnNuAlLl_
I      F| _                     ^f
alse(if_satisfied, ...) In file included from _s2/s2cap.cc_:V18A:
_In file included from A../src/s2/s2cap.hR:G30S:
_In file included from _../src/s2/s1angle.h
:      28| :
        ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2builderutil_s2polyline_vector_layer.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h18::
29In file included from :
../src/s2/s2builderutil_s2polyline_vector_layer.h:/usr/local/clang/include/absl/strings/cord.h27::
1054In file included from :../src/s2/mutable_s2shape_index.h37::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:558 :10543 | :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  a  b558s | l : :AcBoSrLd__IiNnTtEeRrNnAaLl_:X:(CionrsdeRretp_*o ra_bassls_ingonn,n uilnls erretp_,o
r      _| a                                    ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241_:h22i:n tnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #cdoenfsitn e& ,a
b      s| l  ^_
no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:  _note: Nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l511l | 
        |                       ^ 
      ABSL_INTERNAL_ATTRIBUTE_CAPTUIn file included from Rs2/s2cap.ccE:D18_:
BIn file included from Y../src/s2/s2cap.h(:t30h:
iIn file included from s../src/s2/s1angle.h):)28):
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1061 :\34
:       | warning:                                                    ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:31: 91061: |   note:  macro 'ABSL_INTERNAL_IF_true' defined herev
oid    31C | o#pdyeTfoiAnrer aAyBSSlLo_wIPNaTtEhR(NcAhLa_rI*F _atbrsule_(niofn_nsualtli sdfsite)d ,c o.n.s.t); 
i      f| _                                 ^s
at/usr/local/clang/include/absl/base/nullability.hi:s241f:i22e:d 
      note: | expanded from macro 'absl_nonnull'        ^

  241 | #define aIn file included from bs2/s2builderutil_s2polyline_vector_layer.ccs:l18_:
nIn file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hn:n27u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h
:      558| :                     ^3
: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &,In file included from  s2/s2cap.ccf:a18l:
sIn file included from e../src/s2/s2cap.h,: 30t:
rIn file included from u../src/s2/s1angle.he:,28
:
      In file included from | ../src/s2/s2point.h                  ~~~~~~~~~~~~~~~~~~~~~:
27:
In file included from ../src/s2/s2coder.h  :56023 | :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1078 : 33 :   warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst_ i1078t | e r aatbosrl(:h:icnotr)d _AiBnStLe_rInNaTlE:R:NCAoLr_dCROeMpM*A )a;b
s      l| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
onn/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l: 47T:a knote: eexpanded from macro 'ABSL_INTERNAL_X'R
ep(  )511  | c o n s t & ; 
        |                                  ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  A241T | T#RdIeBfUiTnEe_ CaAbPsTlU_RnEoDn_nBuYl(lt h_iNso)n)n)u l l 
        |                       ^ 
                 \In file included from 
s2/s2cap.cc      :| 18                                              ^~~~:

In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INIn file included from Ts2/s2cap.ccE:R18N:
AIn file included from L../src/s2/s2cap.h_:X30(:
iIn file included from n../src/s2/s1angle.hs:e28r:
tIn file included from _../src/s2/s2point.ho:r27_:
aIn file included from s../src/s2/s2coder.hs:i23g:
nIn file included from ,/usr/local/clang/include/absl/status/status.h :i67n:
sIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hr:t29_:
o/usr/local/clang/include/absl/strings/cord.hr:_1116a:s37s:i gwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
hint _1116i | m p lc,o ncsotn sctr c&_,
      i| n  ^t
er/usr/local/clang/include/absl/container/internal/btree_container.hn:a509l::52::C rnote: cexpanded from macro 'ABSL_INTERNAL_X'C
ord  S509t | a t e *   a b s l _ nAuBlSlLa_bIlNeT EMRaNyAbLe_GAeTtTCRrIcBCUoTrEd_SCtAaPtTeU(R)E Dc_oBnYs(tt;h
i      s| )                                    ^)
, /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b\s
l      _| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.ha:b31l:e9 :_ Nnote: umacro 'ABSL_INTERNAL_IF_true' defined herel
lab   l31e | 
#      d| e                      ^f
ine ABSL_INTERNAL_IF_true(if_saIn file included from ts2/s2cap.cci:s18f:
iIn file included from e../src/s2/s2cap.hd:,30 :
.In file included from .../src/s2/s1angle.h.:)28 :
iIn file included from f../src/s2/s2point.h_:s27a:
tIn file included from i../src/s2/s2coder.hs:f23i:
eIn file included from d/usr/local/clang/include/absl/status/status.h
:      67| :
        ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2builderutil_s2polyline_vector_layer.cc1120: | 18 :
 In file included from v../src/s2/s2builderutil_s2polyline_vector_layer.ho:i27d:
 In file included from C../src/s2/mutable_s2shape_index.ho:p30y:
TIn file included from o/usr/local/clang/include/absl/container/btree_map.hA:r67r:
a/usr/local/clang/include/absl/container/internal/btree_container.hy:I561m:p3l:( cwarning: h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
r* ab  s561l | _ n oAnBnSuLl_lI NdTsEtR)N AcLo_nXs(ti;n
s      e| r                             ^t
_o/usr/local/clang/include/absl/base/nullability.hr:_241a:s22s:i gnote: nexpanded from macro 'absl_nonnull',
 i  n241s | e#rdte_foirn_ea sasbisgln__nhoinnntu_lilm p_lN,o ncnounlslt
       &| ,                     ^

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSIn file included from Ls2/s2cap.cc_:I18N:
TIn file included from E../src/s2/s2cap.hR:N30A:
LIn file included from _../src/s2/s1angle.hI:F28_:
tIn file included from r../src/s2/s2point.hu:e27(:
iIn file included from f../src/s2/s2coder.h_:s23a:
tIn file included from i/usr/local/clang/include/absl/status/status.hs:f67i:
eIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h,: 29.:
../usr/local/clang/include/absl/strings/cord.h): 1140if_:s49a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied
       1140|  |         ^ 
              In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 27 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hC:o67r:
d/usr/local/clang/include/absl/container/internal/btree_container.hR:e570p:E3x:t ewarning: r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
al* a  b570s | l _ nAoBnSnLu_lIlN TrEeRpN)A;L
_      X| (                                                ^i
nse/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uhliln t__Niomnpnlu,l lc
o      n| s                     ^t
 &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |           In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30f:
aIn file included from l../src/s2/s1angle.hs:e28,:
 In file included from t../src/s2/s2point.hr:u27e:
,In file included from  ../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h_:i67t:
eIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.ha:t29o:
r/usr/local/clang/include/absl/strings/cord.h(:h1146i:n10t:)  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_ I1146N | TCEoRrNdARLe_pC*O MaMbAs)l;_
n      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ull/usr/local/clang/include/absl/container/internal/btree_container.h :N511e:w47E:x tnote: eexpanded from macro 'ABSL_INTERNAL_X'r
nal  R511e | p ( a b s l : : s t rAiBnSgL__vIiNeTwE RdNaAtLa_,A
T      T| R         ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) )a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^\

      |                                               ^~~~
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l572l: 3_:N owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull
        572|  |                      ^ 
 ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:In file included from 30s2/s2builderutil_s2polyline_vector_layer.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2builderutil_s2polyline_vector_layer.h:
:In file included from 27../src/s2/s2point.h:
:In file included from 27../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 572/usr/local/clang/include/absl/status/internal/status_internal.h::329::
 /usr/local/clang/include/absl/strings/cord.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]1183
:47: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]572
 |   A B1183S | L _ I N T E R N A L _ X ( i n s e r t _ o r _ a s s i g n ,   i n s e r t _Coorr_daRsespi*g na_bhsiln_tn_uilmlpalb,l ec ornespt) 
&      ,|                                                ^&
&,
/usr/local/clang/include/absl/base/nullability.h      :| 257  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
23:   note: 573expanded from macro 'absl_nullable' | 
     257  |  # d e f i n e   a b s l _ nturlulea,b lfea l_sNeu,l lcaobnlset
_      i| t                      ^e
rator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnullIn file included from  s2/s2builderutil_s2polyline_vector_layer.ccr:h18s:
)In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h{:
27      :
| In file included from                                                    ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22:/usr/local/clang/include/absl/container/internal/btree_container.h :574note: :expanded from macro 'absl_nonnull'3
:   warning: 241 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
defi  n574e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, inIn file included from ss2/s2cell_index.cce:r18t:
_In file included from o../src/s2/s2cell_index.hr:_26a:
sIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hi:g43n:
_In file included from h/usr/local/clang/include/absl/container/hash_container_defaults.hi:n19t:
_In file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hm:p59l:
,In file included from  /usr/local/clang/include/absl/strings/cord.hc:o94n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h :&31,:
 &&/usr/local/clang/include/absl/synchronization/mutex.h,:
489      :| 14  ^:
 warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
509:52: note: expanded from macro 'ABSL_INTERNAL_X'  
489 |     509 In file included from  |  s2/s2cap.cc   :v o18 i:
 dIn file included from   ../src/s2/s2cap.h( *: a30b s:
 lIn file included from  _../src/s2/s1angle.hnA:uBl28Sl:
LaIn file included from _b../src/s2/s2point.hIl:eN27 T:
iEIn file included from nR../src/s2/s2coder.hvN:aAr23Li:
_aIn file included from An/usr/local/clang/include/absl/status/status.hTt:)T(67Rv:
IoIn file included from Bi/usr/local/clang/include/absl/status/internal/status_internal.hUd:*T 29Ea:
_bC/usr/local/clang/include/absl/strings/cord.hsA:Pl1230_Tn:Uu20Rl:lEa Dbwarning: _itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lB
Yi(tt yh_1230ui | sin)nk)ln,io n wen )  ,c o
 n       s t |   c             ^ h 
a r *  /usr/local/clang/include/absl/base/nullability.h a: b257 s :l _23 n :u l  lnote: \a
expanded from macro 'absl_nullable'b      l
| e                                                   ^   
C257o/usr/local/clang/include/absl/container/internal/common.h | r:#d31:d:e:f9Ii:nn lenote: i macro 'ABSL_INTERNAL_IF_true' defined herena
bes   Rl31e_ | pn#:ud:ledlfaaitnbale( e)A  B_cSNoLun_lslItaNb Tl{Ee
R
      N      | A                   ^| L                      ^
_
I/usr/local/clang/include/absl/base/nullability.hF:_257t:r23u:eIn file included from  (s2/s2cell_index.ccnote: i:expanded from macro 'absl_nullable'f18
_:
s  In file included from a257t../src/s2/s2cell_index.h | i:#s26dfe:
ifeIn file included from id/usr/local/clang/include/absl/container/flat_hash_set.hn,e:  .43a.b:
.sIn file included from )l /usr/local/clang/include/absl/container/hash_container_defaults.h_i:nfu19_l:
slaIn file included from atb/usr/local/clang/include/absl/container/internal/hash_function_defaults.hils:ef59 i_:
eNdIn file included from u
/usr/local/clang/include/absl/strings/cord.hl      :l| a94        ^b:

lIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                      ^/usr/local/clang/include/absl/synchronization/mutex.h
:489:45:In file included from  s2/s2builderutil_s2polyline_vector_layer.ccwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:  27489:
 | In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hv:o67i:
d/usr/local/clang/include/absl/container/internal/btree_container.h :(574*:a3b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ulIn file included from ls2/s2cap.cca  b:574l18 | e :
 iIn file included from  n../src/s2/s2cap.hAv:Ba30Sr:
Li_aIn file included from In../src/s2/s1angle.hNt:)T28(E:
RvIn file included from oN../src/s2/s2point.hiA:dL27*_ :
XaIn file included from b(s../src/s2/s2coder.hil:_n23ns:
ueIn file included from rl/usr/local/clang/include/absl/status/status.htl_:ao67rb:
_iIn file included from al/usr/local/clang/include/absl/status/internal/status_internal.hsi:st29iy:
g_/usr/local/clang/include/absl/strings/cord.hnu:,n1234 k:ni20onw:sn ewarning: )rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],t

_      o| r _                                            ^1234a
 | si/usr/local/clang/include/absl/base/nullability.hsni:lgi289nn:_eh34 ic:not n_snote: iexpanded from macro 'absl_nullability_unknown'tm
 pcl  h,289a r | c#*od neasfbitsn el& _,n ao&bns&n,lu
l_      nl|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~uC
lolr  da575b: | i: lIi nt lyi_ nu en RkIn file included from  s2/s2builderutil_snap_functions.ccen o:p :w18 :n:
 a  In file included from _s ../src/s2/s2builderutil_snap_functions.h N_u: cl23 hl:
 a _In file included from rtsu../src/s2/s1angle.hnr(:)su28 pe:
ce,In file included from oc ../src/s2/s2point.hnit:sfr25tiue:
 e{dIn file included from 
,
 ../src/s2/util/coding/coder.h            c:o| |                                  ^36n                   ^s
:

tIn file included from _../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.hi::t34241e:
:rIn file included from 22a/usr/local/clang/include/absl/log/log.ht:o: r209note: (:
In file included from expanded from macro 'absl_nonnull'hIn file included from s2/s2cell_index.cc
i/usr/local/clang/include/absl/log/internal/log_impl.hn:  :t1824122):
 | :
# dIn file included from In file included from AeB../src/s2/s2cell_index.h/usr/local/clang/include/absl/log/internal/log_message.hfSi::Ln_2647eI :
:
NaTIn file included from In file included from bEs/usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/log/internal/structured_proto.hRlN::_An4327Lo_:
:
nCnIn file included from In file included from Ou/usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/log/internal/proto.hMlM::lA 1934)_;:
:
N
/usr/local/clang/include/absl/types/span.hIn file included from o      n:n/usr/local/clang/include/absl/container/internal/hash_function_defaults.h| 212                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u::
l5922l:
/usr/local/clang/include/absl/container/internal/btree_container.h:
In file included from :       /usr/local/clang/include/absl/strings/cord.h509| warning:                      ^type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]::

9447:
:  In file included from  212/usr/local/clang/include/absl/strings/internal/cordz_info.hnote:  | expanded from macro 'ABSL_INTERNAL_X': 
 31u:
  s/usr/local/clang/include/absl/synchronization/mutex.h509i: | n 490g  : p 13o i: n  t ewarning:  r type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] A
=BIn file included from  ST  s2/s2cap.ccL*490:_ I | 18 a N :
 bTIn file included from E s../src/s2/s2cap.hR l:Nv_30Aon:
LiuIn file included from _dl../src/s2/s1angle.hAl:Ta28bT:
RiIn file included from Il../src/s2/s2point.hBiUt*: Tay27Eb_:
_suIn file included from Cln../src/s2/s2coder.hkA_:nPon23TwUu:
nR;lIn file included from E
Dl/usr/local/clang/include/absl/status/status.h      _a:| B                     ^b67iY
:
l(In file included from ti/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.hht::iy29289s_:
:)u34/usr/local/clang/include/absl/strings/cord.h)n::,k 1239 n:note:  o38expanded from macro 'absl_nullability_unknown' w:
 n     289warning:  a | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] r#
 gd  )e 1239 ;f |  i
i n       nl i| e n             ^ e 
a b a b/usr/local/clang/include/absl/base/nullability.hs ls_: l : :\n
289cuolrl      a:d| b                                              ^~~~34_iilni
:tte yr_note: nexpanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/container/internal/btree_container.huan
:lk574n:o  ::wC2893no  | :r_d# NRudwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]pl*e
f/usr/local/clang/include/absl/container/internal/btree_container.hl _i:aubn511nse:slp 52a_bes:ln_c oninote: fniuexpanded from macro 'ABSL_INTERNAL_X'lne
dlua
b  l      li511|                                   ^l | iC
 to yr _d :u :In file included from n Is2/s2builderutil_snap_functions.ccnk :ln 18 i o:
nAwIn file included from eBRn../src/s2/s2builderutil_snap_functions.hSeL :p_:_23I:NN:
aTsuIn file included from lE_../src/s2/s1angle.hlR_t:Nur28Ane:
LseIn file included from _p(../src/s2/s2point.h)Ae:c
iT25      fT:
| iReIn file included from                                      ^Id../src/s2/util/coding/coder.h
B
:U      /usr/local/clang/include/absl/base/nullability.h36T| ::
E                                 ^241In file included from _
:../src/s2/base/casts.hC22:A:34P :
TIn file included from Unote: /usr/local/clang/include/absl/log/log.hRexpanded from macro 'absl_nonnull':E
209D:
  _In file included from 241B/usr/local/clang/include/absl/log/internal/log_impl.h | Y:(#22dte:
hfIn file included from ii/usr/local/clang/include/absl/log/internal/log_message.hsn:)e) In file included from 47)a bs2/s2cell_index.cc:
 s :In file included from l _18/usr/local/clang/include/absl/log/internal/structured_proto.h n :
:o nIn file included from 27 n ../src/s2/s2cell_index.h:
u l:In file included from  l26/usr/local/clang/include/absl/log/internal/proto.h   :
:_ NIn file included from 34 o n /usr/local/clang/include/absl/container/flat_hash_set.h:
n :/usr/local/clang/include/absl/types/span.hu l43: l:
213 
 In file included from :       /usr/local/clang/include/absl/container/hash_container_defaults.h34|                       ^::\
19 
:
warning:       type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from | 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h                                                   ^:
  59213/usr/local/clang/include/absl/container/internal/common.h:
 | : In file included from 31 /usr/local/clang/include/absl/strings/cord.h:u:9s94:i:
 nIn file included from note: gmacro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/strings/internal/cordz_info.h 
c:o31   n:
31s/usr/local/clang/include/absl/synchronization/mutex.h | t#:In file included from _dp499s2/s2cap.cceo::fi3518inn::
tee In file included from  rA ../src/s2/s2cap.h=warning: Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S:L _
30cI:
NoT  In file included from nEs499t../src/s2/s1angle.h RT | : N*A La28b _:
svIIn file included from Fl_o../src/s2/s2point.h_ti:nrud27ule :
l(EIn file included from aibfn../src/s2/s2coder.hi_la:siab23ttyl:
i_seIn file included from ufnD/usr/local/clang/include/absl/status/status.heikendo:b,w 67un.;:

g.In file included from .      )L/usr/local/clang/include/absl/status/internal/status_internal.h|                                   ^o:i
fg29(_/usr/local/clang/include/absl/base/nullability.hs:
act:i/usr/local/clang/include/absl/strings/cord.hso289:fn:1245is34:et:38d 
c :      h note: | expanded from macro 'absl_nullability_unknown'awarning:         ^
rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
*   
289a | b#s dl1245In file included from e_ | s2/s2builderutil_s2polyline_vector_layer.ccfni:nilu18lnien e:
la baIn file included from asbl../src/s2/s2builderutil_s2polyline_vector_layer.h_bs:ln:l27u:e:
 lcIn file included from nlo../src/s2/mutable_s2shape_index.haar:mbdi_30iel):
nit;In file included from teyr
/usr/local/clang/include/absl/container/btree_map.h_nu      :anl| 67                                  ^k::

/usr/local/clang/include/absl/container/internal/btree_container.hn:/usr/local/clang/include/absl/base/nullability.hC:oor:574wdn257:R e:3_pN23:*u l: al warning: b_sulnote: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n_sexpanded from macro 'absl_nullable'
npu
el  lca  574ibf257 | lie |  e d# C
odA      Bre| Sdf                                 ^iL:_:
InIenNl TERNAiaLn_beXsR(elipn_:sn:uetrlrtle_aebo(rl)_
ea      s | s                                     ^_i
gNnu/usr/local/clang/include/absl/base/nullability.h,l:l 257ia:bn23sl:ee r
tnote: _      expanded from macro 'absl_nullable'o| 
                      ^r  _
257a | s#sdiegfni_nhei natb_silm_pnlu,l lcaobnlset  _&N,u l&l&a,b
l      e| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                       ^
  575 |                   true, true, const_In file included from is2/s2cell_index.cct:e18r:
aIn file included from t../src/s2/s2cell_index.ho:r26(:
hIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hn:t43):
 In file included from A/usr/local/clang/include/absl/container/hash_container_defaults.hB:S19L:
_In file included from I/usr/local/clang/include/absl/container/internal/hash_function_defaults.hN:T59E:
RIn file included from N/usr/local/clang/include/absl/strings/cord.hA:L94_:
CIn file included from O/usr/local/clang/include/absl/strings/internal/cordz_info.hM:M31A:
)/usr/local/clang/include/absl/synchronization/mutex.h;In file included from :
s2/s2cap.cc549      ::| 1840                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
:
In file included from  ../src/s2/s2cap.h/usr/local/clang/include/absl/container/internal/btree_container.h:warning: :30type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]511:

:In file included from 47../src/s2/s1angle.h::   28549note: :
expanded from macro 'ABSL_INTERNAL_X' | In file included from  
../src/s2/s2point.h :s27  t:
511aIn file included from  | t../src/s2/s2coder.h i:c  23 v:
 oIn file included from  i/usr/local/clang/include/absl/status/status.h d:  67 I:
 nIn file included from  c/usr/local/clang/include/absl/status/internal/status_internal.hAr:Be29mS:
e/usr/local/clang/include/absl/strings/cord.hnLt:_S1258Iy:Nn36Tc:Eh Rwarning: SNtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ae
Lm_(A TM1258Tu | RitInBelUxiT*nEe _ CacbAosPrTldU__RniEnoDnt_neuBlrlYn (amtlhu:i,:s
)C      )o| )                                       ^r d
 R e/usr/local/clang/include/absl/base/nullability.h p :F l241 a :t *22   :a  b snote:  expanded from macro 'absl_nonnull'l 
_ n   o 241n n |  #ud l el 
f       i\| n
                                   ^e      
 | a/usr/local/clang/include/absl/base/nullability.h                                              ^~~~b:
s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _NonnullIn file included from 
s2/s2cell_index.cc      :| 18                     ^:

In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2cap.cc      :| 18                     ^:

In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2cell_index.cc::126818::
51In file included from :../src/s2/s2cell_index.h :26warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h1268: | 19i:
nIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hi:n59e:
 In file included from v/usr/local/clang/include/absl/strings/cord.ho:i94d:
 In file included from C/usr/local/clang/include/absl/strings/internal/cordz_info.h:o31r:
d/usr/local/clang/include/absl/synchronization/mutex.h:::551I:n40l:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ep:  :551E | m p lsatcaetTirce eb(oCoolr dDReecpr*e maebnstlS_ynnocnhnSuelml( Mruetpe,x
*       | a                                                  ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
mu  ,241
 |       #| d                                       ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnulnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |          In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23b:
aIn file included from s/usr/local/clang/include/absl/status/status.he:_67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:r29n:
a/usr/local/clang/include/absl/strings/cord.hl::1275::P51e:r Twarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
eadS y1275n | cihn*l ianbes lv_oniodn nCuolrld :w:,I
n      l| i                                                               ^n
eR/usr/local/clang/include/absl/base/nullability.he:p241:::22E:m pnote: lexpanded from macro 'absl_nonnull'a
ce  T241r | e#ed(eCfoirndeR eapb*s la_bnsoln_nnuolnln u_lNlo nrneupl,l

            | |                                                   ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2cell_index.ccn:o18n:
nIn file included from u../src/s2/s2cell_index.hl:l26 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_set.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl:
19      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp,In file included from  s2/s2cap.cci:n18t:
 In file included from f../src/s2/s2cap.hl:a30g:
sIn file included from )../src/s2/s1angle.h;:
28      :
| In file included from                                      ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#defi/usr/local/clang/include/absl/strings/cord.hn:e1282 :a47b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu l1282l |  i_nNloinnneu lvlo
i      d|                       ^C
ord::InlineRep::SetTree(In file included from Cs2/s2cell_index.cco:r18d:
RIn file included from e../src/s2/s2cell_index.hp:*26 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_set.hs:l43_:
nIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hn:n19u:
lIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :r59e:
pIn file included from ,/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                              ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/synchronization/mutex.h241::55822::35 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #558d | e f ibnoeo la bLsolc_knSolnonwuWlilt h_DNeoandnluilnle
(      M| u                     ^H
ow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2cell_index.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2cell_index.h27::
26In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h23::
43In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h67::
19In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h29::
59:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/strings/cord.h1290::9454:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]31
:
/usr/local/clang/include/absl/synchronization/mutex.h:559: 461290: |  iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
ine   559v | o i d   C o r d : : I n l i n e R e p : : S e t T r e e OcroEnmsptt yC(oCnodridtRieopn**  aabbssll__nnuullllaabbllee  rceopn,d
,      
|                                                            ^| 
                                             ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257257::2323::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nullable'

    257257 |  | ##ddeeffiinnee  aabbssll__nnuullllaabbllee  __NNuullllaabbllee

            | |                       ^                      ^

In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, cIn file included from os2/s2cap.ccn:s18t:
 In file included from C../src/s2/s2cap.ho:n30d:
iIn file included from t../src/s2/s1angle.hi:o28n:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _In file included from ../src/s2/s2coder.hns2/s2cell_id.ccu::l2318l:
:
aIn file included from bIn file included from /usr/local/clang/include/absl/status/status.hl../src/s2/s2cell_id.he:: 67c43:
o:
nIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h:../src/s2/s1angle.h,:
577:29      :28:
| 3:
/usr/local/clang/include/absl/strings/cord.h                      ^:In file included from :
 ../src/s2/s2point.h1301:warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:27:
56:
241:In file included from :   ../src/s2/s2coder.h22warning: 577::type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 23  
:
 note: In file included from  Aexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h1301B
: | Si67n  L:
_lI241In file included from iNn | /usr/local/clang/include/absl/status/internal/status_internal.hTeE#: Rvd29NoAe:
iLdfIn file included from In file included from _/usr/local/clang/include/absl/strings/cord.hX (is2/s2builderutil_snap_functions.cc:Cin:8618onre:
:
sde In file included from /usr/local/clang/include/absl/strings/cord_analysis.h:r:a../src/s2/s2builderutil_snap_functions.h:tI_nb:32olrs23:i_nl:
47aes_In file included from :Rsen../src/s2/s1angle.h ipo:nwarning: g:28:ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
,C u
lIn file included from oi   l../src/s2/s2point.hmnmsie32 :trT | _25tr_soirN:
ezee__oIn file included from (acsotn../src/s2/util/coding/coder.hnsn sG:euitg36nt_l :
CEoshtlIn file included from ridnRti
../src/s2/base/casts.he_pm*       :aibas| 34mtpeld,Ml                     ^:
 e_
In file included from &mno/usr/local/clang/include/absl/log/log.h&ur:,lyl209 Uas:
In file included from cboangsetIn file included from s2/s2cell_index.ccl( c/usr/local/clang/include/absl/log/internal/log_impl.h:e& oonl:18,sdt22:

_ r:
eIn file included from       CIn file included from opr../src/s2/s2cell_index.h| /usr/local/clang/include/absl/log/internal/log_message.h  ^,d::

R2647      /usr/local/clang/include/absl/container/internal/btree_container.he:
p:
| :                                                       ^In file included from *In file included from 509
/usr/local/clang/include/absl/container/flat_hash_set.h /usr/local/clang/include/absl/log/internal/structured_proto.ha:b:/usr/local/clang/include/absl/base/nullability.h:52s43:27:l:
257:
 _In file included from :In file included from note: nexpanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/hash_container_defaults.h23/usr/local/clang/include/absl/log/internal/proto.ho
n:::n19   34u:
509note: :
expanded from macro 'absl_nullable'lIn file included from  | 
/usr/local/clang/include/absl/types/span.hl/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :   : 733257r59 : | e#p:
 31d)In file included from  : e ;/usr/local/clang/include/absl/strings/cord.h
 f :      warning: i n 94| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]eA :
                                              ^
BaIn file included from 
Sb/usr/local/clang/include/absl/strings/internal/cordz_info.h  Ls:/usr/local/clang/include/absl/base/nullability.h733_lI31: | _cnouN:
241nlslT/usr/local/clang/include/absl/synchronization/mutex.h:taeExR:22bplrN562:e A:  S_pLa58note: N_uAlTln:expanded from macro 'absl_nonnull'TaRb<l 
ITBeU
TE_warning: C>         Mtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A241| a
P | T                      ^U  k#
dRe562eEfD | Si_n pIn file included from BeY as2/s2cap.cc (avn:tbho(18Ts*l _anii:
db osIn file included from )s)Ln../src/s2/s2cap.hl,_onc:k nuullll30aS l :
_bNl oIn file included from oen np w../src/s2/s1angle.hut (:lrl  M28
A u:
      B HIn file included from | S o../src/s2/s2point.h                     ^L _w:
 A 27 T a:
bT In file included from  sR../src/s2/s2coder.h lI_: B Un23 In file included from To:
 s2/s2cell_id.cc E nIn file included from :_ Ln/usr/local/clang/include/absl/status/status.h18 I\u::
F
El67In file included from       Tl:
../src/s2/s2cell_id.h| I                                                   ^ In file included from :M
Eh/usr/local/clang/include/absl/status/internal/status_internal.h43_o/usr/local/clang/include/absl/container/internal/common.h::
Bw:29In file included from O,32:
../src/s2/s1angle.hU :/usr/local/clang/include/absl/strings/cord.h:Nc9:28Do:1302:
,n :In file included from 
snote: t50../src/s2/s2point.h      macro 'ABSL_INTERNAL_IF_false' defined here ::| 
                              ^C o27
   warning: n:
/usr/local/clang/include/absl/base/nullability.h32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dIn file included from : | 
#i../src/s2/s2coder.h257dt ::ei13022323fo | :
 : i nIn file included from  n */usr/local/clang/include/absl/status/status.h note: ae : expanded from macro 'absl_nullable' b 67A
B Ss:
   L lIn file included from 257_ I_/usr/local/clang/include/absl/status/internal/status_internal.h |  # dNn: e f Tu29lil E :
 n aRIn file included from e  bNl/usr/local/clang/include/absl/strings/cord.h a b s lA_e: L _ InF 86 u_lc:
o/usr/local/clang/include/absl/strings/cord_analysis.h f l n:aalbsl d50,e
e :(        49 i| _:N uf                                                         ^  l l aC_
warning: bostype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a/usr/local/clang/include/absl/base/nullability.hlr
dt:eR
eip257         s*f:50|  ia23 |                       ^ebd:s
iszle_, _nt  note: oexpanded from macro 'absl_nullable'.G.n.
ent)  uMlolr e257 _P_ | rrVe#eAc_dpi,s
eAe      MRf| eIn file included from Gi                                                 ^ms2/s2builderutil_snap_functions.ccoSrn
e:_y_U /usr/local/clang/include/absl/base/nullability.h18
sa:b:
      a241sIn file included from | g        ^e:(l../src/s2/s2builderutil_snap_functions.h_
22c:on:23nu lnote: :
expanded from macro 'absl_nonnull'slIn file included from In file included from 
ta  bs2/s2builderutil_s2polyline_vector_layer.ccl../src/s2/s1angle.h 241C:oe:  | 18r28d_#:
:
RNduIn file included from lIn file included from eepf*i../src/s2/s2builderutil_s2polyline_vector_layer.hnl../src/s2/s2point.ha :e:ba27b salb_25l:
snl:
eIn file included from o_In file included from 
../src/s2/mutable_s2shape_index.hnnno../src/s2/util/coding/coder.h      :unl:| 30nl36                      ^:
u lr:

In file included from leIn file included from p/usr/local/clang/include/absl/container/btree_map.h ../src/s2/base/casts.h):_:;67N34
:
o:
      /usr/local/clang/include/absl/container/internal/btree_container.hnIn file included from | :n/usr/local/clang/include/absl/log/log.h                                                ^577u:
:l2093l:
/usr/local/clang/include/absl/base/nullability.h:
In file included from :       /usr/local/clang/include/absl/log/internal/log_impl.h241| warning:                      ^::passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
22In file included from 22
:
s2/s2cell_index.cc:In file included from :   /usr/local/clang/include/absl/log/internal/log_message.h18577note: :expanded from macro 'absl_nonnull':
 | 47 
 In file included from :
A  B../src/s2/s2cell_index.hIn file included from 241S:/usr/local/clang/include/absl/log/internal/structured_proto.h | L#26:_dI:
27eNfIn file included from :
TiE/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from nRe:/usr/local/clang/include/absl/log/internal/proto.hN A43:aL:
34b_sXIn file included from :
l(/usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/types/span.h_in:In file included from :nos19s2/s2cap.cc739nen:
::rutIn file included from 1821l_l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:o r:In file included from  __59../src/s2/s2cap.hwarning: Na:
:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]osnIn file included from 30
sni/usr/local/clang/include/absl/strings/cord.h:
uglnl,
   i:In file included from       739n94../src/s2/s1angle.h|  |                      ^Ssp:
:
earIn file included from 28nt</usr/local/clang/include/absl/strings/internal/cordz_info.h:
_To:In file included from >r 31../src/s2/s2point.h_M:
:aIn file included from a/usr/local/clang/include/absl/synchronization/mutex.h27ss2/s2cell_id.ccski::
:egS565In file included from 18np_:../src/s2/s2coder.h:
ahn36:In file included from i(n:23../src/s2/s2cell_id.hTt*_ :
: iawarning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]43mbpsll/usr/local/clang/include/absl/status/status.h
:
,_ :&In file included from &n,  67../src/s2/s1angle.hu l565:
:cloa | In file included from 28nbs /usr/local/clang/include/absl/status/internal/status_internal.h:
lte :vIn file included from   &b,e
29o../src/s2/s2point.hg      :
i:i| n  ^ /usr/local/clang/include/absl/strings/cord.hd27
A:/usr/local/clang/include/absl/container/internal/btree_container.h :
B1312S:LUIn file included from n:l511o_c../src/s2/s2coder.hk38:A:TS:5223Tl ::
Rowarning:  In file included from Iwtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'ABSL_INTERNAL_X'B(
:
US67Ty   :
En1312c511In file included from _ | Lih | /usr/local/clang/include/absl/status/internal/status_internal.hInFW a:iltE 29 :
 i PTIn file included from InMeE  aa/usr/local/clang/include/absl/strings/cord.h_ B Obr: U sAa86NlD:,B
m:
:S      Ls/usr/local/clang/include/absl/strings/cord_analysis.hc| o_r*:                     ^IdN_Ti56a
En:tbRs/usr/local/clang/include/absl/base/nullability.h56eNl:_:nrA257L _unl:warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]TaTll23
R:a:I:b    BCl56note: Uexpanded from macro 'absl_nullable'oe |  T
rsdiwEa  Rz_eCi257e_pA*t | tP TGU pa)#edReb tEfDisAE_nBel BsSYL_at(i_nbtmhAuTsaitsl)TleldaFbal)R_ine)IruS h a BlCroe UlrMde: TaEm: b l_oI n e Crl i_ OynNe LUuR Dslale ;gapb:l e
e: c 
      (l        | c                                   ^e|                        ^o
a 
 n s t r/usr/local/clang/include/absl/base/nullability.h \(:C
)257In file included from o      r d:s2/s2builderutil_snap_functions.cc| {                                                   ^
R23:
      e:18| /usr/local/clang/include/absl/container/internal/common.h                                     ^p :
:
*note: In file included from 32 /usr/local/clang/include/absl/base/nullability.haexpanded from macro 'absl_nullable'../src/s2/s2builderutil_snap_functions.h::b
:9257s23l  :::
_257 23In file included from n | :note: ../src/s2/s1angle.hmacro 'ABSL_INTERNAL_IF_false' defined hereo# :
nd28note: nexpanded from macro 'absl_nullable'e   :
u
lf  i32In file included from l257 n | ../src/s2/s2point.h | re#:#ed d25pe)fae:
f;i
niebIn file included from       n eAs../src/s2/util/coding/coder.h|  Bal:                                                       ^SbL_36
s_ln:
/usr/local/clang/include/absl/base/nullability.hI_NuIn file included from :nTul../src/s2/base/casts.h241ElRl::lNaa3422AbLb:
:l_elIn file included from  I e/usr/local/clang/include/absl/log/log.hnote: F__ :expanded from macro 'absl_nonnull'Nfu_209
alllN:
  saeuIn file included from 241b(ll/usr/local/clang/include/absl/log/internal/log_impl.h | i#fd_esl:e
faa22      itnb:
| i                      ^seflIn file included from 
 iae/usr/local/clang/include/absl/log/internal/log_message.hebds
:,l       47_.n| :
.o.                      ^In file included from n)n
/usr/local/clang/include/absl/log/internal/structured_proto.h u_:l_27lV:
 AIn file included from __/usr/local/clang/include/absl/log/internal/proto.hNA:oR34nG:
nS/usr/local/clang/include/absl/types/span.hu_:l_740l
:
      21      | :|         ^                      ^

warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* abslIn file included from _s2/s2cell_index.ccn:u18l:
lIn file included from a../src/s2/s2cell_index.hb:l26e:
 In file included from In file included from es2/s2cap.ccn/usr/local/clang/include/absl/container/flat_hash_set.h:d:18)43:
 :
In file included from nIn file included from ../src/s2/s2cap.ho/usr/local/clang/include/absl/container/hash_container_defaults.h:e:30x19:
c:
In file included from eIn file included from ../src/s2/s1angle.hp/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:t:28 59:
{:
In file included from 
In file included from ../src/s2/s2point.h      /usr/local/clang/include/absl/strings/cord.h:| :27                    ^94:

:
In file included from In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h/usr/local/clang/include/absl/strings/internal/cordz_info.h:::2572331::
:
23In file included from /usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/status/status.h: :576note: 67expanded from macro 'absl_nullable'::

49In file included from :  /usr/local/clang/include/absl/status/internal/status_internal.h 257:warning:  | 29#type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
d
/usr/local/clang/include/absl/strings/cord.he  :f5761321i | :n 48e  In file included from :vas2/s2builderutil_s2polyline_vector_layer.cc owarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:i
l18d_:
  nIn file included from u1321lT../src/s2/s2builderutil_s2polyline_vector_layer.h | lir:anby27Rllien e_:
Ne mIn file included from uvo../src/s2/mutable_s2shape_index.hvlo:iel30d(a:
b bIn file included from lCa/usr/local/clang/include/absl/container/btree_map.heo
s:r      de67| :_:
                      ^:i
/usr/local/clang/include/absl/container/internal/btree_container.hIn:nt579le:rin3na:el R:warning: e:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]pP
:e:rC  To579hp | ry eT aodAASBrSyrLna_cyIh(*N caThbEsaRlrN*_A Lnao_nbXns(ulil_nlnso esn)r;n
tu_l      olr|                                                  ^_d
assts/usr/local/clang/include/absl/base/nullability.h)i :gc241no,:n 22si:tn  s{enote: 
expanded from macro 'absl_nonnull'r      t
| _                                               ^  o
241r | _/usr/local/clang/include/absl/base/nullability.ha#:sd241se:if22gi:nn e_ note: hexpanded from macro 'absl_nonnull'aib
ns  tl241__ | nio#nmdnpeulfl,il n &_e& N,oan nbuclslo
ln_      snt| In file included from o n                     ^s2/s2builderutil_snap_functions.cc&n,
:u
l18      l:
|  In file included from   ^_../src/s2/s2builderutil_snap_functions.h
N:o23/usr/local/clang/include/absl/container/internal/btree_container.hn:
:nIn file included from 509u../src/s2/s1angle.h:l:52l28:
:
       In file included from In file included from note: | ../src/s2/s2point.h                     ^s2/s2cell_index.ccexpanded from macro 'ABSL_INTERNAL_X':
:
2518:
:
  In file included from In file included from 509../src/s2/util/coding/coder.h../src/s2/s2cell_index.h | : :36 26:
 :
In file included from  In file included from ../src/s2/base/casts.h /usr/local/clang/include/absl/container/flat_hash_set.h: :34 43:
 :
In file included from  In file included from /usr/local/clang/include/absl/log/log.h /usr/local/clang/include/absl/container/hash_container_defaults.h:A:209B19:
S:
In file included from LIn file included from /usr/local/clang/include/absl/log/internal/log_impl.h_/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:I:22N59:
T:
In file included from EIn file included from /usr/local/clang/include/absl/log/internal/log_message.hR/usr/local/clang/include/absl/strings/cord.h:N:47A94:
L:
In file included from _In file included from /usr/local/clang/include/absl/log/internal/structured_proto.hA/usr/local/clang/include/absl/strings/internal/cordz_info.h:T:27T31:
R:
In file included from I/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/proto.hB::U57834T::
E45/usr/local/clang/include/absl/types/span.h_::C 794Awarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P8
T:U R  warning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]578D
_ | B Y   (v794to | h iid s  )B l)To,*c  k a( bb sa ls _e n_ ui ln tle ar bn l ae  l p: t: rP  e r TA Bh Sr Le\_a
Ad      TS| yT                                                   ^nR
cIh/usr/local/clang/include/absl/container/internal/common.hB*:U 32Ta:bEs9l_:_L nnote: oImacro 'ABSL_INTERNAL_IF_false' defined herenF
EnTu   lIl32M  | sE#_)d;B
eOf      UiN| nD                                            ^e, 
 As/usr/local/clang/include/absl/base/nullability.hBi:SzL241e_:_I22tN: TsE iRznote: Neexpanded from macro 'absl_nonnull'A)L
 _nI  oFe241_xf | ca#eldpsetef ({iin
ef       _a| sb       ^as
tli_/usr/local/clang/include/absl/base/nullability.hsn:fo257in:en23du:,l  lnote:  ._expanded from macro 'absl_nullable'.N
o.  n)257 n | _u#_dlVeAfl_i
AnR      eG S| a_                     ^b_
s
l      _| n        ^u
llable _NIn file included from us2/s2builderutil_s2polyline_vector_layer.cclIn file included from :ls2/s2cell_index.cc18a::
b18In file included from l:
../src/s2/s2builderutil_s2polyline_vector_layer.heIn file included from :
../src/s2/s2cell_index.h27      ::
| 26In file included from                       ^:
../src/s2/mutable_s2shape_index.h
In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h30::
43In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h67::
19/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 579/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::359::
 In file included from warning: /usr/local/clang/include/absl/strings/cord.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31579:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 580A:B34S:L _warning: IIn file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Ns2/s2builderutil_snap_functions.ccT
:E18R:
  NIn file included from A580../src/s2/s2builderutil_snap_functions.hL | :_ 23X :
b(aIn file included from is../src/s2/s1angle.hne:_s28ie:
nrIn file included from tt../src/s2/s2point.he_:ro25nra:
_lIn file included from a:../src/s2/util/coding/coder.h:s:Pse36ri:
gTIn file included from nh../src/s2/base/casts.h,r: e34ia:
ndIn file included from sS/usr/local/clang/include/absl/log/log.hey:rn209tc:
_hIn file included from o*/usr/local/clang/include/absl/log/internal/log_impl.hr :_a22ab:
ssIn file included from sl/usr/local/clang/include/absl/log/internal/log_message.hi_gn:nu47l_l:
ahIn file included from ib/usr/local/clang/include/absl/log/internal/structured_proto.hnl:te27_ :
WiIn file included from am/usr/local/clang/include/absl/log/internal/proto.hkpe:lu34,p:
 (/usr/local/clang/include/absl/types/span.h&
:&      799,| :                                  ^32c
:o n/usr/local/clang/include/absl/base/nullability.hwarning: s:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t257
 :&23,  :
799        | note: | S  ^pexpanded from macro 'absl_nullable'
a
n/usr/local/clang/include/absl/container/internal/btree_container.h<  :c257511o | :n#52sd:te  fnote: iTexpanded from macro 'ABSL_INTERNAL_X'n>
e  M  aa511kb | es lC _on un ls lta S bp lae  n_ (ANTBu*Sl lLa_abbIsNllT_eE
nRu      NlA| l                      ^La_
bAlTeT RbIeBgUiIn file included from TnE
s2/s2cell_index.cc_      C:| A                               ^18P
:
TIn file included from /usr/local/clang/include/absl/base/nullability.hU../src/s2/s2cell_index.h:R:257E26:D:
23_In file included from :B/usr/local/clang/include/absl/container/flat_hash_set.h Y:(note: t43expanded from macro 'absl_nullable'h:

iIn file included from   s/usr/local/clang/include/absl/container/hash_container_defaults.h257): | )19#)d:
 e In file included from f /usr/local/clang/include/absl/container/internal/hash_function_defaults.hi n: e59   :
a bIn file included from  s /usr/local/clang/include/absl/strings/cord.hl _: n 94u l:
 l In file included from a b/usr/local/clang/include/absl/strings/internal/cordz_info.h l :e 31  _:
 N /usr/local/clang/include/absl/synchronization/mutex.hu l:\l
581a      b:| l                                                   ^38e

:      /usr/local/clang/include/absl/container/internal/common.h | :                      ^warning: 31
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
9:   note: 581macro 'ABSL_INTERNAL_IF_true' defined here | 
 In file included from      s2/s2builderutil_snap_functions.cc31 : |  18# :
dbIn file included from ae../src/s2/s2builderutil_snap_functions.hsf:ei23n_:
ieIn file included from n ../src/s2/s1angle.hAt:eB28rS:
nLIn file included from a_l../src/s2/s2point.hI::N:25PT:
eEIn file included from Rr../src/s2/util/coding/coder.hTN:Ah36rL:
_eIn file included from Ia../src/s2/base/casts.hFd:_S34ty:
rnIn file included from cu/usr/local/clang/include/absl/log/log.hhe:*( 209ia:
bfsIn file included from _l/usr/local/clang/include/absl/log/internal/log_impl.hs_:an22ot:
inIn file included from nsu/usr/local/clang/include/absl/log/internal/log_message.hfl:il47 e:
wd)In file included from ,;/usr/local/clang/include/absl/log/internal/structured_proto.h 
:.      27.| :
.                                     ^In file included from )
/usr/local/clang/include/absl/log/internal/proto.h :/usr/local/clang/include/absl/base/nullability.hi34f::
_241/usr/local/clang/include/absl/types/span.hs::a22801t::i 32s:fnote:  iexpanded from macro 'absl_nonnull'warning: e
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d

        241  |  | 801#        ^ | d
 e f i n e   a b sIn file included from  ls2/s2builderutil_s2polyline_vector_layer.cc _:n 18 o:
 nIn file included from  n../src/s2/s2builderutil_s2polyline_vector_layer.h u: l27 l:
  In file included from  _../src/s2/mutable_s2shape_index.hN :o 30 n:
 nIn file included from  u/usr/local/clang/include/absl/container/btree_map.h l: l67 
:
T      /usr/local/clang/include/absl/container/internal/btree_container.h*| :                      ^579a
:b3s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
llable   579e | n d )A BnSoLe_xIcNeTpEtR N{In file included from A
Ls2/s2cell_index.cc      _:| X                               ^18(
:
iIn file included from /usr/local/clang/include/absl/base/nullability.hn../src/s2/s2cell_index.h:s:257e26r:t:
23_In file included from :o/usr/local/clang/include/absl/container/flat_hash_set.h r:note: _expanded from macro 'absl_nullable'a43
s:
s  In file included from i257g/usr/local/clang/include/absl/container/hash_container_defaults.h | n:#,19d e:
ifnIn file included from isn/usr/local/clang/include/absl/container/internal/hash_function_defaults.heer: t59a_b:
osIn file included from rl_/usr/local/clang/include/absl/strings/cord.h_an:sus94lil:
ganIn file included from b_l/usr/local/clang/include/absl/strings/internal/cordz_info.hhei: n_31tN_:
ui/usr/local/clang/include/absl/synchronization/mutex.hlml:pa585lb,:l 20e&:
&       ,warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                       ^c

ons  t585  | & , 
v      o| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
 Tr  a580n | s ( M u H o w   a b s l _ n o n n u lfla lhsoew,) ;t r u/e/,  ucsoends tf_oirt eCroantdoVra(rh-i>nMtu)t eAxB StLr_aInNsTfEeRrN
A      L| _                   ^C
OM/usr/local/clang/include/absl/base/nullability.hM:A241):;22
:       | note:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 511#:d47e:f inote: nexpanded from macro 'ABSL_INTERNAL_X'e
 ab  s511l | _ n o n n u l l   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_ATTRIBUTE_CAPTURED_BIn file included from Ys2/s2cell_index.cc(:t18h:
iIn file included from s../src/s2/s2cell_index.h):)26):
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31\:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 586                                              ^~~~:
43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ig/usr/local/clang/include/absl/container/internal/btree_container.hn:o581r:e3d:* /warning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
{}
        | 581                                       ^ | 
  /usr/local/clang/include/absl/base/nullability.hA:B257S:L23_:I Nnote: Texpanded from macro 'absl_nullable'E
RN  A257L | _#Xd(eifnisneer ta_bosrl__ansuslilganb,l ei n_sNeurltl_aobrl_ea
s      s| i                      ^g
n_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(MuIn file included from ts2/s2builderutil_s2polyline_vector_layer.cce:x18&:
 In file included from m../src/s2/s2builderutil_s2polyline_vector_layer.hu: 27A:
BIn file included from S../src/s2/mutable_s2shape_index.hL:_30I:
NIn file included from T/usr/local/clang/include/absl/container/btree_map.hE:R67N:
A/usr/local/clang/include/absl/container/internal/btree_container.hL:_583A:T3T:R Iwarning: Bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]U
TE_C  A583P | T U RAEBDS_LB_YI(NtThEiRsN)A)L
_      X| (                                                                   ^~~~i
nsert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/btree_container.h::635509::2952::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    635509 |  |     e x p l i c i t  AMBuStLe_xILNoTcEkR(NMAuLt_eAxT*T RaIbBsUlT_En_oCnAnPuTlUlR EmDu_)B YA(BtShLi_sE)X)C,L U S I V E _ L OIn file included from  Cs2/s2cap.cc K: _18 F:
 UIn file included from  N../src/s2/s2cap.h C: T30 I:
 OIn file included from  N../src/s2/s1angle.h( :m 28u :
 )In file included from  
../src/s2/s2point.h\      :
| 27                                  ^:
| 
In file included from                                                    ^../src/s2/s2coder.h
:/usr/local/clang/include/absl/base/nullability.h23:/usr/local/clang/include/absl/container/internal/common.h:
241:In file included from :31/usr/local/clang/include/absl/status/status.h22:::967 ::
note:  expanded from macro 'absl_nonnull'In file included from note: 
macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/status/internal/status_internal.h
  :24129    | :
31# | /usr/local/clang/include/absl/strings/cord.h#d:de1505fei:fn41ei: n aewarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s 
AlB_Sn Lo1505_n | nIiNunTllEliR nN_eAN Lov_nonIiuFd_l tlCr
our      ed(| :i                     ^:fC
_ospaytTiosAfriready,I m.p.l.()c hiafr_*s aatbisslf_ineodn
n      u| l        ^l
 dst) consIn file included from ts2/s2cell_index.cc In file included from :{s2/s2builderutil_s2polyline_vector_layer.cc
18:      :
18| In file included from :
                                        ^../src/s2/s2cell_index.hIn file included from 
:../src/s2/s2builderutil_s2polyline_vector_layer.h26:/usr/local/clang/include/absl/base/nullability.h:
27:In file included from :
241/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from ::../src/s2/mutable_s2shape_index.h2243:::
30 In file included from :
note: /usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/container/btree_map.h
19::
  67In file included from 241:
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | /usr/local/clang/include/absl/container/internal/btree_container.h:#:59d583e:
:fIn file included from 3i/usr/local/clang/include/absl/strings/cord.h:n: e94warning:  :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]aIn file included from 
b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l  31_583n:
 | o/usr/local/clang/include/absl/synchronization/mutex.h n: nA641uBl:SlL 68__I:NN oTnwarning: E'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]nRu
NlAlL
_        X641| (                     ^ | i
 n seexrtp_loirc_iats sMiugtne,x Lioncske(rMtu_toerx_&a smsui gAnB_ShLi_nItN_TiEmRpNlA,L _&A&In file included from T,s2/s2cap.ccT :cR18oI:
nBIn file included from sU../src/s2/s2cap.htT: E30&_:
C,In file included from A
../src/s2/s1angle.hP      :T| 28  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~U:

RIn file included from E../src/s2/s2point.h  D:584_27 | B:
 YIn file included from  ( t../src/s2/s2coder.hh i:s )23, :

 In file included from        /usr/local/clang/include/absl/status/status.h | :                                                                   ^~~~ 67 
:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h :t1514r:u29e:,  warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue,  1514c | o n s t _ciotredr_aitnotre(r/usr/local/clang/include/absl/synchronization/mutex.hhnia:nlt649:):: 29CA:oB rSdLwarning: R_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eIp
N*T Ea  Rb649NsA | lL __ nCeoOxnMpnMluAil)lc; i
tt      r | e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Meu
)t e/usr/local/clang/include/absl/container/internal/btree_container.h{x:
L509      o:| c47                            ^k:(
 M/usr/local/clang/include/absl/base/nullability.hnote: u:expanded from macro 'ABSL_INTERNAL_X't241e
:x22*:    a509note: b | expanded from macro 'absl_nonnull's 
l    _241 n | o #n dn e ufl il n AmeuB ,Sa Lb_csIolNn_TnsEotRnN nACuLol_lnAd iT_tTNiRooInnBn&UuT lEcl_o
Cn      Ad| P)                     ^
T
      U| R                            ^E
D_/usr/local/clang/include/absl/base/nullability.hB:Y241(:t22h:i snote: )expanded from macro 'absl_nonnull')
,    241  |  # d e f i n e   a b s l _ n o n n u l l  \_
N      o| n                                              ^~~~n
ull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.hIn file included from :s2/s2builderutil_s2polyline_vector_layer.cc30::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h28::
27In file included from :
../src/s2/s2point.hIn file included from :../src/s2/mutable_s2shape_index.h27::
30In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h23::
67In file included from :
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/container/internal/btree_container.h67::
583In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h3::29 :
warning: /usr/local/clang/include/absl/strings/cord.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
1525:29:   warning: 583type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  A B1525S | L _ I N TcEoRrNdA_Li_nXt(eirnnsaelr:t:_Coorr_daRsespi*g na,b siln_sneorntn_uolrl_ atsrseieg)n _{h
i      n| t                            ^_
imp/usr/local/clang/include/absl/base/nullability.hl:,241 :&22&:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | &#,d
e      f| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
e a  b584s | l _ n o nIn file included from  ns2/s2cell_index.cc u :l l18  :
 _ In file included from N o../src/s2/s2cell_index.h n: n 26u :
l lIn file included from  
t/usr/local/clang/include/absl/container/flat_hash_set.h      r:| u43                     ^e:

,In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ht:r19u:
eIn file included from ,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :c59o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht:_94i:
tIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hr:a31t:
o/usr/local/clang/include/absl/synchronization/mutex.hr:(670h:i74n:t )warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A
BSL_I  N670T | E R NeAxLp_lCiOcMiMtA )R;e
a      d| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r
Mu/usr/local/clang/include/absl/container/internal/btree_container.ht:In file included from e511xs2/s2cap.ccL::o4718c::
k In file included from (note: ../src/s2/s2cap.hexpanded from macro 'ABSL_INTERNAL_X'M:
u30t:
  eIn file included from 511x../src/s2/s1angle.h | &:  28 m:
 uIn file included from   ../src/s2/s2point.hA :B 27S :
 LIn file included from  _../src/s2/s2coder.h I:AN23TBE:
SRIn file included from LN/usr/local/clang/include/absl/status/status.h_A:IL67_N:
TAIn file included from TE/usr/local/clang/include/absl/status/internal/status_internal.hTR:RN29IA:
LB/usr/local/clang/include/absl/strings/cord.h_U:AT1530TE:T_55RC:IA BPwarning: TUtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]UTR
EE_DC _A1530BP | TiYUnR(lEtiDhn_ieB YsC()ot)hr
ids      :)| :                                                                         ^~~~)C
)h u n k I t e r a t o r : : C h u n k I t e r a t\o
r      (| c                                              ^~~~o
nst /usr/local/clang/include/absl/synchronization/mutex.hC:o678r:d35*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n678n | u l le xcpolridc)i t{ 
R      e| a                                                      ^d
erM/usr/local/clang/include/absl/base/nullability.hu:t241e:x22L:o cnote: kexpanded from macro 'absl_nonnull'(
Mu  t241e | x#*d eafbisnle_ naobnsnlu_lnlo nmnuu)l lA B_SNLo_nSnHuAlRlE
D      _| L                     ^O
CK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h586::313:
:/usr/local/clang/include/absl/synchronization/mutex.h :warning: 681passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
74: warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]586
 |   AB  S681L | _ I NeTxEpRlNiAcLi_tX (RienasdeerrtM_uotre_xaLsoscikg(nM,u tienxs&e rmtu_ oArB_SaLs_sIiNgTnE_RhNiAnLt__AiTmTpRlI,B U&T&E,_ C&A&P,T UfRaElDs_eB,Y
(      t| h  ^i
s)/usr/local/clang/include/absl/container/internal/btree_container.h,:
509      :| 52                                                                         ^~~~:
 note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE/usr/local/clang/include/absl/synchronization/mutex.h_:C689A:P35T:U Rwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]D
_BY(  t689h | i s )e)x,p l i c i t   R e a d e r M u t e x L o c k ( M u\t
e      x| *                                                   ^ 
abs/usr/local/clang/include/absl/container/internal/common.hl:_32n:o9n:n unote: lmacro 'ABSL_INTERNAL_IF_false' defined herel
 mu   ,32  | c#odnesfti nCeo nAdBiStLi_oInN&T EcRoNnAdL)_
I      F| _                                  ^f
als/usr/local/clang/include/absl/base/nullability.he:(241i:f22_:s anote: texpanded from macro 'absl_nonnull'i
sfie  d241, |  #.d.e.f)i n_e_ VaAb_sAlR_GnSo_n_n
u      l| l        ^ 
_Nonnull
      | In file included from                      ^s2/s2builderutil_s2polyline_vector_layer.cc
:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67/usr/local/clang/include/absl/synchronization/mutex.h:
:718/usr/local/clang/include/absl/container/internal/btree_container.h::35588:: 3warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  718 |     588e | x p lAiBcSiLt_ IWNrTiEtReNrAMLu_tXe(xiLnoscekr(tM_uotre_xa*s saibgsnl,_ nionnsneurltl_ omru_)a
s      s| i                                  ^g
n_h/usr/local/clang/include/absl/base/nullability.hi:n241t:_22i:m pnote: lexpanded from macro 'absl_nonnull',
 &  &241, |  #&d&e,f ifnael saeb,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l509l: 52_:N onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull  
509       | |                       ^ 
        ABSL_INTERNAL_ATTRIBUTE_CAPTUREIn file included from Ds2/s2cell_index.cc_:B18Y:
(In file included from t../src/s2/s2cell_index.hh:i26s:
)In file included from )/usr/local/clang/include/absl/container/flat_hash_set.h,: 43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :\722
:      74| :                                                   ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/container/internal/common.h
:32:9:   note: 722macro 'ABSL_INTERNAL_IF_false' defined here | 
  e   x32p | l#idceifti nWer iAtBeSrLM_uItNeTxELRoNcAkL(_MIuFt_efxa&l smeu( iAfB_SsLa_tIiNsTfEiReNdA,L _.A.T.T)R I_B_UVTAE__ACRAGPST_U_R
E      D| _        ^B
Y(this),
      In file included from | s2/s2builderutil_s2polyline_vector_layer.cc                                                                         ^~~~:
18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERN/usr/local/clang/include/absl/synchronization/mutex.hA:L731_:X35(:i nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rt_  o731r | _ a sesxipglni,c iitn sWerritt_eorrM_uatsesxiLgonc_kh(iMnutt_eixm*p l,a b&s&l,_ n&o&n,n uflall smeu,,
       c| o  ^n
st/usr/local/clang/include/absl/container/internal/btree_container.h :C511o:n52d:i tnote: iexpanded from macro 'ABSL_INTERNAL_X'o
n&   c511o | n d ) 
        |                                    ^ 
   /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#AdTeTfRiInBeU TaEb_sClA_PnToUnRnEuDl_lB Y_(Ntohninsu)l)l)
        |                       ^ 
                    \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisIn file included from fs2/s2cap.cci:e18d:

In file included from       ../src/s2/s2cap.h| :        ^30
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2builderutil_s2polyline_vector_layer.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2builderutil_s2polyline_vector_layer.h:
:27/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1666../src/s2/mutable_s2shape_index.h::4830::
 In file included from /usr/local/clang/include/absl/container/btree_map.hwarning: :67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/container/internal/btree_container.h:588:3 :1666  | warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
line   C588o | r d  ACBoSrLd_:I:NATdEvRaNnAcLe_AXn(diRnesaedr(tC_hoarr_Iatsesriagtno,r *i nasbesrlt__noorn_nauslsli gint_,h
i      n| t                                               ^_
imp/usr/local/clang/include/absl/base/nullability.hl:,241 :&22&:,  note: &expanded from macro 'absl_nonnull'&
,   f241a | l#sdee,f
i      n| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
abs  l589_ | n o n n u l l   _ N o n n u l l 
        | t                     ^r
ue, const_iteraIn file included from ts2/s2cell_index.cco:r18(:
hIn file included from i../src/s2/s2cell_index.hn:t26):
 In file included from A/usr/local/clang/include/absl/container/flat_hash_set.hB:S43L:
_In file included from I/usr/local/clang/include/absl/container/hash_container_defaults.hN:T19E:
RIn file included from N/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:L59_:
CIn file included from O/usr/local/clang/include/absl/strings/cord.hM:M94A:
)In file included from ;In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h
s2/s2cap.cc:      :31| 18                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
:

In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2cap.h:/usr/local/clang/include/absl/container/internal/btree_container.h:801:30:511:
20:In file included from :47../src/s2/s1angle.h ::warning:  28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: :
expanded from macro 'ABSL_INTERNAL_X'
In file included from 
../src/s2/s2point.h:27:
  In file included from   801../src/s2/s2coder.h511 | :  |  23C :
o In file included from n /usr/local/clang/include/absl/status/status.hd :i 67 t:
 iIn file included from o n/usr/local/clang/include/absl/status/internal/status_internal.h (: b29Ao:
oB/usr/local/clang/include/absl/strings/cord.hSl:L 1672(_*:aI41bNs:Tl E_warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oR
nNnAu Ll1672_l | AiT nTlRfiIunnBecU )Tv(Eov_iCodiAd *PC TaoUrbRsdEl:D_:_nAuBdlYvl(aatnbhciielsi()Ct)hy)_a ur In tk e nr a t o r o* w  na )b, 
s       l _|  n                    ^o n
 n u /usr/local/clang/include/absl/base/nullability.hl :l  241\i
:t      ,22|  :                                              ^~~~s 
inote: zexpanded from macro 'absl_nonnull'e
_t   241n | _#bdyetfeisn)e  {a
b      s| l                                        ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_In file included from ns2/s2cell_index.cco:n18n:
uIn file included from l../src/s2/s2cell_index.hl: 26_:
NIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
                     ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_n/usr/local/clang/include/absl/container/internal/btree_container.hu:l590l:a3b:i lwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
y_un  k590n | o w nA B_SNLu_lIlN_TuEnRsNpAeLc_iXf(iiends
e      r| t                                 ^_
or_assign, insert_or_In file included from as2/s2cell_index.ccs:s18i:
gIn file included from n../src/s2/s2cell_index.h_:h26i:
nIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.h_:i43m:
pIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h,: 19&:
&In file included from ,/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :&59&:
,In file included from  /usr/local/clang/include/absl/strings/cord.ht:r94u:
eIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
  ^/usr/local/clang/include/absl/synchronization/mutex.h
:802:/usr/local/clang/include/absl/container/internal/btree_container.h19::509 :warning: 52type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
 note:   expanded from macro 'ABSL_INTERNAL_X'802
 |      509  |                 v o iAdB*S La_bIsNlT_EnRuNlAlLa_bAiTlTiRtIyB_UuTnEk_nCoAwPnT UaRrEgD)_;B
Y      (| t                  ^h
is/usr/local/clang/include/absl/base/nullability.h):)289,: 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # d e f i n e   a b s l _ n\u
l      l| a                                                   ^b
il/usr/local/clang/include/absl/container/internal/common.hi:t31y:_9u:n knote: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
wn    _31N | u#ldle_fuinnsep eAcBiSfLi_eIdN
T      E| R                                 ^N
AL_IF_true(if_satisfied, ...) if_satisIn file included from fs2/s2cell_index.cci:e18d:

In file included from       ../src/s2/s2cell_index.h| :        ^26
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2/s2builderutil_s2polyline_vector_layer.cc:
:In file included from 18/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2builderutil_s2polyline_vector_layer.h:
:/usr/local/clang/include/absl/synchronization/mutex.h27::
814In file included from :../src/s2/mutable_s2shape_index.h20::30 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/btree_container.h  :814590 | : 3 :C owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
ition  (590b | o o lA B(S*La_bIsNlT_EnRoNnAnLu_lXl( ifnusnecr)t(_To*r _aabsssli_gnnu,l lianbsielritt_yo_ru_naksnsoiwgnn)_,h
i      n| t                   ^_
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22&:& ,note:  expanded from macro 'absl_nonnull'&
&,   241t | r#udee,f
i      n| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
abs  l591_ | n o n n u l l   _ N o n n u l l 
        | f                     ^a
lse, conIn file included from ss2/s2cell_index.cct:_18i:
tIn file included from e../src/s2/s2cell_index.hr:a26t:
oIn file included from r/usr/local/clang/include/absl/container/flat_hash_set.h(:h43i:
nIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.h): 19A:
BIn file included from S/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:_59I:
NIn file included from T/usr/local/clang/include/absl/strings/cord.hE:R94N:
AIn file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:C31O:
M/usr/local/clang/include/absl/synchronization/mutex.hM:A814):;42
:       | warning:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:  509814: | 47 :  Cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
diti  o509n | ( b o o l   ( * a b sAlB_SnLo_nInNuTlElR NfAuLn_cA)T(TTR*I BaUbTsEl__CnAuPlTlUaRbEiDl_iBtYy(_tuhniksn)o)w,n ) , 
        |                                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # d\e
f      i| n                                              ^~~~e
 absl_n/usr/local/clang/include/absl/container/internal/btree_container.hu:l590l:a3b:i lwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
y/usr/local/clang/include/absl/container/internal/btree_container.h_:u511n:k52n:o wnote: nexpanded from macro 'ABSL_INTERNAL_X' 
_Nu  l511l | _ u n s p e c i f i eAdB
S      L| _                                 ^I
NTERNAL_ATTRIBUTE_In file included from Cs2/s2cell_index.ccA:P18T:
UIn file included from R../src/s2/s2cell_index.hE:D26_:
BIn file included from Y/usr/local/clang/include/absl/container/flat_hash_set.h(:t43h:
iIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.h):)19):
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 815 : 16 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]\

      |                                                      ^815
 |  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
  T   *32  | a#bdself_innuel lAaBbSiLl_iItNyT_EuRnNkAnLo_wInF _afragl)s;e
(      i| f               ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i289s:f34i:e dnote: ,expanded from macro 'absl_nullability_unknown' 
..  .289) |  #_d_eVfAi_nAeR GaSb_s_l
_      n| u        ^l
lability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :s2/s2builderutil_s2polyline_vector_layer.cc43::
18In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h19::
27In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/mutable_s2shape_index.h59::
30In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h94::
67In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/container/internal/btree_container.h::31592:
:/usr/local/clang/include/absl/synchronization/mutex.h3::830 :warning: 36passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  592 |    830  | A B S L _ I NbToEoRlN A(L*_aXb(siln_sneorntn_uolrl_ afsusnicg)n(,T *i nasbesrlt__nourl_laasbsiilgint_yh_iunntk_niomwpnl),, 
&      &| ,                                   ^ 
&&/usr/local/clang/include/absl/base/nullability.h,: 289t:r34u:e ,note: 
expanded from macro 'absl_nullability_unknown'      
|   ^
  289 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d509e:f52i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _509n | u l l a b i l i t y _AuBnSkLn_oIwNnT E_RNNuAlLl__AuTnTsRpIeBcUiTfEi_eCdA
P      T| U                                 ^R
ED_BY(this)),                        \
In file included from       s2/s2cell_index.cc| :                                                   ^18
:
In file included from ../src/s2/s2cell_index.h/usr/local/clang/include/absl/container/internal/common.h::2631:
:In file included from 9/usr/local/clang/include/absl/container/flat_hash_set.h:: 43note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19   :
31In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h#:d59e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T831E:R46N:A Lwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]I
F_t  r831u | e ( i f _ s attyipsefniaemde,  a.b.s.l): :itfy_psea_tiidsefniteidt
y      <| T        ^>
::type* absl_nuIn file included from ls2/s2builderutil_s2polyline_vector_layer.ccl:a18b:
iIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.hi:t27y:
_In file included from u../src/s2/mutable_s2shape_index.hn:k30n:
oIn file included from w/usr/local/clang/include/absl/container/btree_map.hn:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                                             ^:
592:/usr/local/clang/include/absl/base/nullability.h3::289 :warning: 34'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'absl_nullability_unknown'
  592   | 289  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_uXl(lianbsielritt_yo_ru_naksnsoiwgnn ,_ Niunlsle_rutn_sopre_caisfsiiegdn
_      h| i                                 ^n
t_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |    In file included from  s2/s2cell_index.cc : 18 :
 In file included from  ../src/s2/s2cell_index.h : 26 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h : 43 :
 In file included from t/usr/local/clang/include/absl/container/hash_container_defaults.hr:u19e:
,In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hc:o59n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h_:i94t:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.ha:t31o:
r/usr/local/clang/include/absl/synchronization/mutex.h(:h844i:n10t:)  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL  _844I | N T E R N A LT_*C OaMbMsAl)_;n
o      n| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll /usr/local/clang/include/absl/container/internal/btree_container.ho:b509j:e47c:t ,note: 
expanded from macro 'ABSL_INTERNAL_X'      
|          ^
  509/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lA_TnToRnInBuUlTlE __CNAoPnTnUuRlElD
_      B| Y                     ^(
this)),             In file included from  s2/s2cell_index.cc : 18 :
 In file included from  ../src/s2/s2cell_index.h : 26 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.h\:
43      :
| In file included from                                               ^~~~/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::59294::
3In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :warning: 31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/btree_container.h::845511::4552::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    845511 |  |             b o o l  A(BaSbLs_lI:N:TtEyRpNeA_Li_dAeTnTtRiItByU<TTE>_:C:AtPyTpUeR:E:D*_ BaYb(stlh_inso)n)n)u l  l   m e t h o d ) ( ) ) ; 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|                                                     ^note: 
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/common.h
:31:  9241: |  #note: dmacro 'ABSL_INTERNAL_IF_true' defined heree
fin   e31  | a#bdself_innoen nAuBlSlL __INNoTnEnRuNlAlL
_      I| F                     ^_
true(if_satisfied, ...) if_satiIn file included from ss2/s2cell_index.ccf:i18e:
dIn file included from 
../src/s2/s2cell_index.h      :| 26        ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from In file included from s2/s2builderutil_s2polyline_vector_layer.cc/usr/local/clang/include/absl/strings/cord.h::1894:
:
In file included from In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2731:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/mutable_s2shape_index.h::85030::
16In file included from :/usr/local/clang/include/absl/container/btree_map.h :warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/container/internal/btree_container.h:592  :8503 | :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
  con  s592t |   T *A BaSbLs_lI_NnToEnRnNuAlLl_ Xo(bijnescetr,t
_      o| r               ^_
as/usr/local/clang/include/absl/base/nullability.hs:i241g:n22,:  inote: nexpanded from macro 'absl_nonnull's
er  t241_ | o#rd_eafsisnieg na_bhsiln_tn_oinmnpull,l  &_&N,o n&n&u,l lt
r      u| e                     ^,

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, In file included from cs2/s2cell_index.cco:n18s:
tIn file included from _../src/s2/s2cell_index.hi:t26e:
rIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.ht:o43r:
(In file included from h/usr/local/clang/include/absl/container/hash_container_defaults.hi:n19t:
)In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:B59S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hI:N94T:
EIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hN:A31L:
_/usr/local/clang/include/absl/synchronization/mutex.hC:O851M:M45A:) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  851 | /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 47 :  bnote: oexpanded from macro 'ABSL_INTERNAL_X'o
l (  a511b | s l : : t y p e _ i dAeBnStLi_tIyN<TTE>R:N:AtLy_pAeT:T:R*IBUTE _aCbAsPlT_UnRoEnDn_uBlYl( tmheitsh)o)d)) ( ) 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d\e
f      i| n                                              ^~~~e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull con/usr/local/clang/include/absl/container/internal/btree_container.hd:)618;:
64      :|                                   ^warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/base/nullability.h:241:  22618: |   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aXb(stlr_yn_oenmnpullalc e_,N otnrnyu_lelm
p      l| a                     ^c
e_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(FIn file included from us2/s2cell_index.ccn:c18,:
 In file included from C../src/s2/s2cell_index.ha:l26l:
eIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.h,: 43K:
QIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.ha:l19,:
 In file included from K/usr/local/clang/include/absl/container/internal/hash_function_defaults.hV:a59l:
uIn file included from e/usr/local/clang/include/absl/strings/cord.h,: 94.:
.In file included from ./usr/local/clang/include/absl/strings/internal/cordz_info.h): 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 886 : 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      886  |      e x p\l
i      c| i        ^t
 Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplacIn file included from es2/s2cell_index.cc_:i18m:
pIn file included from l../src/s2/s2cell_index.h,: 26c:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hs:t43 :
&In file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h :f19a:
lIn file included from s/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:)59;:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :  ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/container/internal/btree_container.h::31611:
:/usr/local/clang/include/absl/synchronization/mutex.h52::896 :note: 31expanded from macro 'ABSL_INTERNAL_X':
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
611 |     896  |      e x p l iAcBiStL _CIoNnTdEiRtNiAoLn_(AcToTnRsItB UTT*E _aCbAsPlT_UnRoEnDn_uBlYl( tohbijs))
)      ,|                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                                                   ^n
on/usr/local/clang/include/absl/container/internal/common.hn:u32l:l9 :_ Nnote: omacro 'ABSL_INTERNAL_IF_false' defined heren
nul   l32
 |       #| d                     ^e
fine ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__In file included from 
s2/s2cell_index.cc      :| 18        ^:

In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqualIn file included from (s2/s2builderutil_s2polyline_vector_layer.ccc:o18n:
sIn file included from t../src/s2/s2builderutil_s2polyline_vector_layer.h :C27o:
nIn file included from d../src/s2/mutable_s2shape_index.hi:t30i:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.h*: 67a:
b/usr/local/clang/include/absl/container/internal/btree_container.hs:l619_:n63u:l lwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
le a  ,619
 |        |                                                 ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_257I:N23T:E Rnote: Nexpanded from macro 'absl_nullable'A
L_  X257( | t#rdye_feimnpel aacbes,l _tnruyl_leambpllea c_eN_uilmlpalb,l ec
o      n| s                      ^t
 &, true);In file included from 
s2/s2cell_index.cc      :| 18                                                              ^:

In file included from ../src/s2/s2cell_index.h:/usr/local/clang/include/absl/container/internal/btree_container.h26::
596In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h9::43 :
note: In file included from macro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h596: | 59#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:I923N:T48E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_X(  F923u | n c ,   C a l l e e ,   K Q u a l ,   K V a l u e ,   . . . )c o n s t   C o n d i t i o n *   a b s l _ n\u
l      l| a        ^b
le b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  In file included from 619s2/s2cell_index.cc | : 18 :
AIn file included from In file included from Bs2/s2cap.cc../src/s2/s2cell_index.hS:L:18_26:
I:
In file included from NIn file included from ../src/s2/s2cap.hT/usr/local/clang/include/absl/container/flat_hash_set.h:E:30R43:
N:
In file included from AIn file included from ../src/s2/s1angle.hL/usr/local/clang/include/absl/container/hash_container_defaults.h:_:X2819(:
:
tIn file included from rIn file included from ../src/s2/s2point.hy/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:_:27e59:
m:
In file included from pIn file included from ../src/s2/s2coder.hl/usr/local/clang/include/absl/strings/cord.h:a:23c94:
e:
In file included from ,In file included from /usr/local/clang/include/absl/status/status.h /usr/local/clang/include/absl/strings/internal/cordz_info.h:t:67r31:
y:
/usr/local/clang/include/absl/status/internal/status_internal.h_/usr/local/clang/include/absl/synchronization/mutex.h:e:119m948:p:14l10:a: c warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: _
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
m  p119l |   ,  948 c | Sot nas ttu bs&oR,oe lt pr(**ua eab)bs;sl
_l      n_u| lnl  ^oa
nbn/usr/local/clang/include/absl/container/internal/btree_container.hul:le611l : e52Cv:la olnote: n_expanded from macro 'ABSL_INTERNAL_X'e)
((
c        o611| n |              ^ s
 t  /usr/local/clang/include/absl/base/nullability.h C: o241 n: d22 i: t  iAnote: Boexpanded from macro 'absl_nonnull'Sn
L*_   I241Na | Tb#EsdRleNf_AinLno_neAn uTalTblR)sI lB=_Un TonEnu_nlCuAllPpltT rU_R;NEo
Dn      _n| BuY         ^l(l
t
h      /usr/local/clang/include/absl/base/nullability.hi| s:                     ^)257
):,23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   aIn file included from  bs2/s2cap.ccs :l _18 n:
u lIn file included from  l../src/s2/s2cap.h a: b30\l:

eIn file included from        ../src/s2/s1angle.h| _:                                                   ^N28u
l:
lIn file included from /usr/local/clang/include/absl/container/internal/common.ha../src/s2/s2point.hb:l:31e27:
:
9      In file included from :| ../src/s2/s2coder.h                       ^note: :macro 'ABSL_INTERNAL_IF_true' defined here
23
:
In file included from /usr/local/clang/include/absl/status/status.h:   6731:
 | /usr/local/clang/include/absl/status/internal/status_internal.h#In file included from :ds2/s2cell_index.cc125e::f1814i:
:nIn file included from  ewarning: ../src/s2/s2cell_index.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
A26B:
  SIn file included from 125L/usr/local/clang/include/absl/container/flat_hash_set.h | _: I 43NS:
TtIn file included from EaR/usr/local/clang/include/absl/container/hash_container_defaults.htNu:As19LR:
_eIIn file included from pF*/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_ :tarb59use:
l(_In file included from inf/usr/local/clang/include/absl/strings/cord.ho_n:sn94aut:
lilIn file included from s f/usr/local/clang/include/absl/strings/internal/cordz_info.hCi:leo31dn,:
e /usr/local/clang/include/absl/synchronization/mutex.hA.:n.d948.U:)n48 ri:eff _(warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
a
      t| i             ^  s
f948i/usr/local/clang/include/absl/base/nullability.he | : d241 
:b      22o| :o        ^ lnote: 
 expanded from macro 'absl_nonnull'(
*a  b241s | l#_dneuIn file included from fls2/s2builderutil_s2polyline_vector_layer.ccil:na18be:
 lIn file included from ae../src/s2/s2builderutil_s2polyline_vector_layer.hb :se27lv:
_aIn file included from nl../src/s2/mutable_s2shape_index.ho_:n)30n(:
ucIn file included from lo/usr/local/clang/include/absl/container/btree_map.hln: s67_t:
N /usr/local/clang/include/absl/container/internal/btree_container.hCo:onn619nd:ui3lt:il o
warning: n      'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*| 
                      ^a
b  s619l | _ n oAnBnSuLl_lI)N T=E RnNuAlLl_pIn file included from Xts2/s2cap.cc(r:t;18r
:
y      In file included from _| ../src/s2/s2cap.he                                               ^:m
30p:
/usr/local/clang/include/absl/base/nullability.hlIn file included from :a../src/s2/s1angle.h241c::e28,22:
 :In file included from t ../src/s2/s2point.hr:ynote: 27_expanded from macro 'absl_nonnull':
e
In file included from m../src/s2/s2coder.h  :p24123l | :
a#In file included from cd/usr/local/clang/include/absl/status/status.hee:_f67ii:
mn/usr/local/clang/include/absl/status/internal/status_internal.hep: la128,b: s14cl:o_ nnwarning: ostype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tn
 n&  u,128l  | lt r  _uSNeto)a;nt
nu      us| Rl  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~el
p
*/usr/local/clang/include/absl/container/internal/btree_container.h       :a| 611b                     ^s:
l47_:n onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull   611C | l o n e AIn file included from  ns2/s2cell_index.cc d :U 18n r:
 eAIn file included from fB../src/s2/s2cell_index.h(S:)L26 _cI:
oNnIn file included from TsE/usr/local/clang/include/absl/container/flat_hash_set.htR:;N43
A:
      LIn file included from | _/usr/local/clang/include/absl/container/hash_container_defaults.h             ^A:
T19T/usr/local/clang/include/absl/base/nullability.h:
R:In file included from I241/usr/local/clang/include/absl/container/internal/hash_function_defaults.hB:U:22T59:E:
 _In file included from note: Cexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.hA
P:T  U94241R:
 | EIn file included from #D/usr/local/clang/include/absl/strings/internal/cordz_info.hd_e:Bf31Yi:
(nt/usr/local/clang/include/absl/synchronization/mutex.heh :ia951sb):s)l9,_ :n o  n nwarning:  utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] l 
l   _   N o951 n  | n   u vlo li d
 *        | a                      ^b 
s l _ n u l\l
a      b| l                                              ^~~~e
 arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/container/internal/btree_container.h::19620:
:In file included from 59/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h620: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hA:B954S:L52_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L954_ | X ( tsrtya_teimcp lbaocoel,  Ctarlyl_VeomipdlPatcreF_uinmcptli,o n&(&c,o nfsatl sCeo)n;d
i      t| i                                                          ^o
n*/usr/local/clang/include/absl/container/internal/btree_container.h :a596b:s9l:_ nnote: omacro 'ABSL_INTERNAL_X' defined heren
nul  l596  | c#)d;e
f      i| n                                                   ^e
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | X#(dFeufnicn,e  Caablslle_en,o nKnQuulall ,_ NKoVnanluulel,
       .| .                     ^.
)                    In file included from  s2/s2cell_index.cc :\18
:
      In file included from | ../src/s2/s2cell_index.h        ^:
26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241/usr/local/clang/include/absl/container/internal/btree_container.h | :#620d:e3f:i nwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
abs  l620_ | n o nAnBuSlLl_ I_NNToEnRnNuAlLl_
X      (| t                     ^r
y_emplace, try_emplacIn file included from es2/s2cell_index.cc_:i18m:
pIn file included from l../src/s2/s2cell_index.h,: 26&:
&In file included from ,/usr/local/clang/include/absl/container/flat_hash_set.h :f43a:
lIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.he:)19;:

In file included from       /usr/local/clang/include/absl/container/internal/hash_function_defaults.h| :  ^59
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/btree_container.h::94611:
:In file included from 52/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31note: :
expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/synchronization/mutex.h
:958:50:   611warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      958  |      s tAaBtSiLc_ IbNoToElR NCAaLs_tAATnTdRCIaBlUlTMEe_tChAoPdT(UcRoEnDs_tB YC(otnhdiist)i)o,n *   a b s l _ n o n n u l l   c ) ; 
        |                                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                                                   ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/common.h
:32  :2419 | :# dnote: emacro 'ABSL_INTERNAL_IF_false' defined heref
ine    32a | b#sdle_fnionnen uAlBlS L__NIoNnTnEuRlNlA
L      _| I                     ^F
_false(if_satisfiedIn file included from ,s2/s2cell_index.cc :.18.:
.In file included from )../src/s2/s2cell_index.h :_26_:
VIn file included from A/usr/local/clang/include/absl/container/flat_hash_set.h_:A43R:
GIn file included from S/usr/local/clang/include/absl/container/hash_container_defaults.h_:_19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h        ^:
59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absIn file included from ls2/s2builderutil_s2polyline_vector_layer.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_s2polyline_vector_layer.hu:l27l:
 In file included from s../src/s2/mutable_s2shape_index.he:l30f:
)In file included from  /usr/local/clang/include/absl/container/btree_map.h{:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                                 ^:
621:58/usr/local/clang/include/absl/base/nullability.h:: 241warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]22
: note:   expanded from macro 'absl_nonnull'621
 |     241A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(otnrnyu_lelm p_lNaocnen,u ltlr
y      _| e                     ^m
place_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #defiIn file included from ns2/s2cell_index.cce: 18A:
BIn file included from S../src/s2/s2cell_index.hL:_26I:
NIn file included from T/usr/local/clang/include/absl/container/flat_hash_set.hE:R43N:
AIn file included from L/usr/local/clang/include/absl/container/hash_container_defaults.h_:X19(:
FIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:c59,:
 In file included from C/usr/local/clang/include/absl/strings/cord.ha:l94l:
eIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31K:
Q/usr/local/clang/include/absl/synchronization/mutex.hu:a975l:,31 :K Vwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ue,   975. | . . )i n l i n e   v o i d   R e a d C a l l b a c\k
(      T| *        ^ 
absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/container/internal/btree_container.h::43621:
:In file included from 3/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
  In file included from 621/usr/local/clang/include/absl/strings/cord.h | : 94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T979E:R43N:A Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]X
(try  _979e | m p lsatcaet,i ct rbyo_oelm pAllawcaey_siTmrpule,( c&o&n,s tt rCuoen)d;i
t      i| o  ^n
* /usr/local/clang/include/absl/container/internal/btree_container.ha:b611s:l52_:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
abl  e611) |   {   r et u r n   t rAuBeS;L _}I
N      T| E                                          ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_257A:T23T:R Inote: Bexpanded from macro 'absl_nullable'U
TE  _257C | A#PdTeUfRiEnDe_ BaYb(stlh_insu)l)l,a b l e   _ N u l l a b l e 
        |                        ^ 
        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~In file included from 
s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWit/usr/local/clang/include/absl/container/internal/btree_container.hh:T622i:m3e:o uwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
Mut  e622x | *   aAbBsSlL__nIoNnTnEuRlNlA Lm_uX,( tarbys_le:m:pDluarcaet,i otnr yt_iemmepoluatc)e _{h
i      n| t                              ^_
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 &  ,241  | f#adlesfei,n
e       | a  ^b
sl/usr/local/clang/include/absl/container/internal/btree_container.h_:n611o:n52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X' 
_No  n611n | u l l 
        |                       ^ 
   ABSL_INTERNAL_ATTRIBUTE_CAPTURIn file included from Es2/s2cell_index.ccD:_18B:
YIn file included from (../src/s2/s2cell_index.ht:h26i:
sIn file included from )/usr/local/clang/include/absl/container/flat_hash_set.h):,43 :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1069 : 32\:
       | warning:                                                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/common.h:32 :10699 | :   note: bmacro 'ABSL_INTERNAL_IF_false' defined hereo
ol    W32a | i#tdWeiftihnDee aAdBlSiLn_eI(NMTuEtReNxA*L _aIbFs_lf_anlosnen(uilfl_ smaut,i safbiseld:,: T.i.m.e)  d_e_aVdAl_iAnReG)S _{_

            | |                                ^        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable In file included from ns2/s2builderutil_s2polyline_vector_layer.cca:m18e:
)In file included from ;../src/s2/s2builderutil_s2polyline_vector_layer.h
:      27| :
                                  ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/container/btree_map.h::2367::
 /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nullable'624
:3:   257warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
defi  n624e |   a bAsBlS_Ln_uIlNlTaEbRlNeA L__NXu(ltlrayb_leem
p      l| a                      ^c
e, try_emplace_hint_In file included from is2/s2cell_index.ccm:p18l:
,In file included from  ../src/s2/s2cell_index.hc:o26n:
sIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.h :&43,:
 In file included from t/usr/local/clang/include/absl/container/hash_container_defaults.hr:u19e:
,In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59  ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h94::
611In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h52::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_INTERNAL_X':
1091:26:   warning: 611type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
     1091  |      b o oAlB SWLa_iItNCToEmRmNoAnL(_MAuTtTeRxI*B UaTbEs_lC_AnPoTnUnRuElDl_ BmYu(ttehxi,s
)      )| ,                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                                   ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l31l: 9_:N onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull   
31       | | #                     ^d
efine ABSL_INTERNAL_IF_trIn file included from us2/s2cell_index.cce:(18i:
fIn file included from _../src/s2/s2cell_index.hs:a26t:
iIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hf:i43e:
dIn file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h :.19.:
.In file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :i59f:
_In file included from s/usr/local/clang/include/absl/strings/cord.ha:t94i:
sIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:e31d:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 1093        ^:
46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   vIn file included from os2/s2builderutil_s2polyline_vector_layer.cci:d18 :
RIn file included from e../src/s2/s2builderutil_s2polyline_vector_layer.hm:o27v:
eIn file included from (../src/s2/mutable_s2shape_index.hb:a30s:
eIn file included from _/usr/local/clang/include/absl/container/btree_map.hi:n67t:
e/usr/local/clang/include/absl/container/internal/btree_container.hr:n624a:l3::: Pwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
Threa  d624S | y n cAhB*S La_bIsNlT_EnRoNnAnLu_lXl( tsr)y;_
e      m| p                                             ^l
ac/usr/local/clang/include/absl/base/nullability.he:, 241t:r22y:_ enote: mexpanded from macro 'absl_nonnull'p
la  c241e | _#hdienfti_niem palb,s lc_onnosntn u&l,l  t_rNuoen,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |                      ^  
625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f626i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l626l | a b lAeB S_LN_uIlNlTaEbRlNeA
L      _| X                      ^(
try_emplace, try_emplace_hint_implIn file included from ,s2/s2cell_index.cc :&18&:
,In file included from  ../src/s2/s2cell_index.hf:a26l:
sIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.h,:
43      :
| In file included from   ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h611::5952:
:In file included from  /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'ABSL_INTERNAL_X'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31611:
 | /usr/local/clang/include/absl/synchronization/mutex.h :1117 : 34 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  AB S1117L | _ I NeTxEpRlNiAcLi_tA TMTuRtIeBxULToEc_kCMAaPyTbUeR(EMDu_tBeYx(*t haibss)l)_,n u l l a b l e   m u ,   cIn file included from  os2/s2cap.cc n: s18 t:
  In file included from  C../src/s2/s2cap.ho : n30 d:
 iIn file included from  t../src/s2/s1angle.hi :o 28\n:

&In file included from        ../src/s2/s2point.h| c:                                                   ^o27n
:
dIn file included from /usr/local/clang/include/absl/container/internal/common.h)../src/s2/s2coder.h:
:32      23:| :
9                                 ^In file included from :
/usr/local/clang/include/absl/status/status.h :/usr/local/clang/include/absl/base/nullability.hnote: 67macro 'ABSL_INTERNAL_IF_false' defined here::

257/usr/local/clang/include/absl/status/internal/status_internal.h::   2314932:: |  13#:dnote:  expanded from macro 'absl_nullable'warning: e
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
  i257n   | e149#  | dAceBoSfnLsi_tnI eNcT haEabRrNs*lA_ Lan_ubIlslFla__fbnaollnsene u(l_ilNfu l_lMsaaabktleieCs
hf      eic| e                      ^kdF
,a i.l.S.t)r i_n_gV(A
_      A| R            ^G
S__/usr/local/clang/include/absl/base/nullability.h
:      241| :        ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2cell_index.ccn:n18u:
lIn file included from l../src/s2/s2cell_index.h :_26N:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                     ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2cap.cc/usr/local/clang/include/absl/synchronization/mutex.h::181132:
:In file included from 10../src/s2/s2cap.h:: 30warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
 In file included from 1132../src/s2/s2point.h | : 27 :
MIn file included from u../src/s2/s2coder.ht:e23x:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
l/usr/local/clang/include/absl/status/internal/status_internal.h_:n150u:l25l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 co  n150s | t   m u _c;o
n      s| t         ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257:::23S:t anote: texpanded from macro 'absl_nullable'In file included from u
s2/s2builderutil_s2polyline_vector_layer.ccs:  *18 257:
a | In file included from #b../src/s2/s2builderutil_s2polyline_vector_layer.hsd:le27f_:
inIn file included from no../src/s2/mutable_s2shape_index.hen:n 30ua:
blIn file included from sl/usr/local/clang/include/absl/container/btree_map.hl :_s67tn:
au/usr/local/clang/include/absl/container/internal/btree_container.htl:ul628sa:,b 3lc:eo  n_warning: sNpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]tu
 lclh  aa628rb | l* e 
 Aa      BbSs| Ll                      ^__I
nNoTnEnRuNlAlL _pXr(etfriyx_)e;m
p      l| a                        ^c
e,/usr/local/clang/include/absl/base/nullability.h :t241r:y22_:e mnote: pexpanded from macro 'absl_nonnull'l
ac  e241_ | h#idnetf_iinmep la,b s&l&_,n otnrnuuel,l
       _| N  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l611l:
52      :|                       ^note: 
expanded from macro 'ABSL_INTERNAL_X'
  611 |     In file included from  s2/s2cap.cc : 18 :
 In file included from  ../src/s2/s2cap.hA:B30S:
LIn file included from _../src/s2/s1angle.hI:N28T:
EIn file included from R../src/s2/s2point.hN:A27L:
_In file included from A../src/s2/s2coder.hT:T23R:
IIn file included from B/usr/local/clang/include/absl/status/status.hU:T67E:
_/usr/local/clang/include/absl/status/internal/status_internal.hC:A150P:T58U:R Ewarning: Dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
BY(this  )150) | ,        c o n s t   a b s l : : S t a t u s *   a b s\l
_      n| o                                                   ^n
nu/usr/local/clang/include/absl/container/internal/common.hl:l31 :s9t:a tnote: umacro 'ABSL_INTERNAL_IF_true' defined heres
, c   o31n | s#td ecfhianre*  AaBbSsLl__InNoTnEnRuNlAlL _pIrFe_ftirxu)e;(
i      fIn file included from | _s2/s2cell_index.cc                                                         ^s:
a18t/usr/local/clang/include/absl/base/nullability.hi:
:sIn file included from 241f../src/s2/s2cell_index.h:i:22e26:d:
 ,In file included from note:  expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/flat_hash_set.h.
.:.  43)241 :
 | i#In file included from fd_/usr/local/clang/include/absl/container/hash_container_defaults.hesf:ai19tni:
esIn file included from  f/usr/local/clang/include/absl/container/internal/hash_function_defaults.haib:esd59l
_:
      nIn file included from | o        ^/usr/local/clang/include/absl/strings/cord.hn
:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
oIn file included from /usr/local/clang/include/absl/synchronization/mutex.hns2/s2builderutil_s2polyline_vector_layer.cc:n:u114618l::
l7In file included from 
:../src/s2/s2builderutil_s2polyline_vector_layer.h      |                      ^ :
27warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h :114667 | :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 628 : 3 :t hwarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
)) AB  S628L | _ E XACBLSULS_IIVNET_ELRONCAKL__FXU(NtCrTyI_OeNm(pmlua)c
e      ,|        ^~~~t
ry_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 | /usr/local/clang/include/absl/synchronization/mutex.h : 1153 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1153  |      e xcpolniscti_ti tRerealteoars(ahbilnetM)u tAeBxSLLo_cIkN(TMEuRtNeAxL*_ CaObMsMlA_)n;o
n      n| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l m/usr/local/clang/include/absl/container/internal/btree_container.hu:)611
:      47| :                                      ^ 
note: expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/base/nullability.h:241:22  :611  | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(this)),                          \
In file included from       s2/s2cell_index.cc| :                                              ^~~~18
:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define /usr/local/clang/include/absl/container/internal/btree_container.ha:b638s:l63_:n owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ull   _638N | o n n u l l 
c      o| n                     ^s
t key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      | In file included from                                                               ^~~~s2/s2cell_index.cc
:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | booIn file included from ls2/s2cap.cc :C18o:
nIn file included from d../src/s2/s2cap.hi:t30i:
oIn file included from n../src/s2/s1angle.h:::28C:
aIn file included from s../src/s2/s2point.ht:A27n:
dIn file included from C../src/s2/s2coder.ha:l23l:
Me/usr/local/clang/include/absl/status/status.ht:h725o:d38(:c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t Co  n725d | i t isotna*t iacb sslt_antounsn_uilnlt ecr)n a{l
:      :| S                                                   ^t
at/usr/local/clang/include/absl/base/nullability.hu:s241R:e22p:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln eP raebpsalr_enToonMnoudlilf y_(N
o      n| n                                     ^u
ll
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from In file included from s2/s2cap.cc../src/s2/s2cell_index.h::1826:
:
In file included from In file included from ../src/s2/s2cap.h/usr/local/clang/include/absl/container/flat_hash_set.h::3043:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/hash_container_defaults.h::2819:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2759:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/cord.h::2394:
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::73231::
29/usr/local/clang/include/absl/synchronization/mutex.h:: 1221warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]54
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]732
 |   s t1221a | tbioco lc oCnosntd isttido:n::s:tCraisntgA*n daCbaslll_Fnuonncntuiloln (EcmopntsytS tCroinndgi(t)i;o
n      *|                              ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 c  )241  | {#
d      e| f                                                     ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:18:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MoveIn file included from ds2/s2cell_index.ccF:r18o:
mIn file included from S../src/s2/s2cell_index.ht:r26i:
nIn file included from g/usr/local/clang/include/absl/container/flat_hash_set.h(:)43;:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                            ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/base/nullability.h::59241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31  :
241/usr/local/clang/include/absl/synchronization/mutex.h | :#1230d:e12f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl _1230n | o n n u lblo o_lN o(n*naublsll
_      n| o                     ^n
null func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2cap.ccf:i18n:
eIn file included from  ../src/s2/s2cap.ha:b30s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
u/usr/local/clang/include/absl/status/status.hl:l751
:      61| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 751s2/s2cell_index.cc | : 18 :
sIn file included from t../src/s2/s2cell_index.ha:t26i:
cIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hu:i43n:
tIn file included from p/usr/local/clang/include/absl/container/hash_container_defaults.ht:r19_:
tIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hP:o59i:
nIn file included from t/usr/local/clang/include/absl/strings/cord.he:r94T:
oIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.he:p31(:
s/usr/local/clang/include/absl/synchronization/mutex.ht:a1230t:u34s:_ iwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
ern a1230l | : : S t abtouoslR e(p**a basbls_ln_onnonnunlull lf urn)c;)
(      T| *                                                            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'
  241b | i#ldietfyi_nuen kanboswln_)n,o
n      n| u                                 ^l
l /usr/local/clang/include/absl/base/nullability.h_:N289o:n34n:u lnote: lexpanded from macro 'absl_nullability_unknown'

      |                      ^  
289 | #define absl_nulIn file included from ls2/s2cap.cca:b18i:
lIn file included from i../src/s2/s2cap.ht:y30_:
uIn file included from n../src/s2/s1angle.hkn:o28w:
nIn file included from  ../src/s2/s2point.h_:N27u:
lIn file included from l../src/s2/s2coder.h_:u23n:
s/usr/local/clang/include/absl/status/status.hp:e752c:i44f:i ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                  ^
  752 |   static constIn file included from  s2/s2cell_index.ccs:t18a:
tIn file included from u../src/s2/s2cell_index.hs:_26i:
nIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.he:r43n:
aIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h:::19S:
tIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:u59s:
RIn file included from e/usr/local/clang/include/absl/strings/cord.hp:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n1231n:u8l:l  warning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
pT o1231P | o i n t eTr*( 
a      b| s                                           ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:i lnote: iexpanded from macro 'absl_nonnull't
y_  u241n | k#ndoewfni naer ga)b
s      l| _       ^n
on/usr/local/clang/include/absl/base/nullability.hn:u289l:l34 :_ Nnote: oexpanded from macro 'absl_nullability_unknown'n
nu  l289l | 
#      d| e                     ^f
ine absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.ccIn file included from :s2/s2builderutil_s2polyline_vector_layer.cc18::
18In file included from :
../src/s2/s2cell_index.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h26::
27In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :../src/s2/mutable_s2shape_index.h43::
33In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/base/commandlineflags.h19::
21In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/flags/flag.h59::
40In file included from :
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/flags/commandlineflag.h94::
163In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h56::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1310:47: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]163
 |    b1310o | o l   P acrosnesFtr ocmh(aarb*s la:b:sslt_rnionngn_uvlile wm svga,l uceo,n sstt dv:o:isdt*r ianbgs*l _anbosnln_unloln ncuvl)l) ;e
r      r| o                                              ^r
);/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                       ^22
: note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknoIn file included from ws2/s2builderutil_s2polyline_vector_layer.ccn:)18,:

In file included from       ../src/s2/s2builderutil_s2polyline_vector_layer.h| :             ^27
:
In file included from ../src/s2/mutable_s2shape_index.h:33/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/base/commandlineflags.h::2321::
 In file included from /usr/local/clang/include/absl/flags/flag.hnote: :expanded from macro 'absl_nullable'42
:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h  :25730 | :
#/usr/local/clang/include/absl/base/call_once.hd:e52f:i24n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_   n52u | lsltadb:l:ea t_oNmuilcl<aubilnet
3      2| _                      ^t
>* abslIn file included from _s2/s2cell_id.ccn:o18n:
nIn file included from u../src/s2/s2cell_id.hl:l43 :
CIn file included from o../src/s2/s1angle.hn:t28r:
oIn file included from l../src/s2/s2point.hW:o27r:
dIn file included from (../src/s2/s2coder.h
:      23| :
                       ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:note: 94expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31241:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d489e:f45i:n ewarning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
bsl  _489n | o n n u l l  v_oNiodn n(u*lalb
s      l| _                     ^n
ullable inIn file included from vs2/s2builderutil_s2polyline_vector_layer.cca:r18i:
aIn file included from n../src/s2/s2builderutil_s2polyline_vector_layer.ht:)27(:
vIn file included from o../src/s2/mutable_s2shape_index.hi:d33*:
 In file included from a../src/s2/base/commandlineflags.hb:s21l:
_In file included from n/usr/local/clang/include/absl/flags/flag.hu:l42l:
aIn file included from b/usr/local/clang/include/absl/flags/internal/flag.hi:l30i:
t/usr/local/clang/include/absl/base/call_once.hy:_53u:n22k:n owarning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
),
         53|  |                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h :a289b:s34l:: :note: oexpanded from macro 'absl_nullability_unknown'n
ce_  f289l | a#gd*e faibnsel _anbosnln_unlull lfalbaigl)i;t
y      _| u                     ^n
kn/usr/local/clang/include/absl/base/nullability.ho:w241n: 22_:N unote: lexpanded from macro 'absl_nonnull'l
_u  n241s | p#edceiffiineed 
a      b| s                                 ^l
_nonnull _NonnuIn file included from ls2/s2cell_id.ccl:
18      :
| In file included from                      ^../src/s2/s2cell_id.h
:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289In file included from  | s2/s2builderutil_s2polyline_vector_layer.cc#:d18e:
fIn file included from i../src/s2/s2builderutil_s2polyline_vector_layer.hn:e27 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l33_:
nIn file included from u../src/s2/base/commandlineflags.hl:l21a:
bIn file included from i/usr/local/clang/include/absl/flags/flag.hl:i42t:
yIn file included from _/usr/local/clang/include/absl/flags/internal/flag.hu:n30k:
n/usr/local/clang/include/absl/base/call_once.ho:w96n: 33_:N uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_uns   p96e | c i ffireide
n      d|                                   ^s
td::atomic<uint32_t>In file included from *s2/s2cell_id.cc :a18b:
sIn file included from l../src/s2/s2cell_id.h_:n43o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from b../src/s2/s2point.ha:s27e:
_In file included from i../src/s2/s2coder.hn:t23e:
rIn file included from n/usr/local/clang/include/absl/status/status.ha:l67::
:In file included from C/usr/local/clang/include/absl/status/internal/status_internal.ho:n29t:
rIn file included from o/usr/local/clang/include/absl/strings/cord.hl:W94o:
rIn file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.h(:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                ^:
499:35/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
499 |    241  | v#odiedf iEnnea balbesDle_bnuognLnougl(lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullaIn file included from bs2/s2builderutil_s2polyline_vector_layer.ccl:e18 :
nIn file included from a../src/s2/s2builderutil_s2polyline_vector_layer.hm:e27):
;In file included from 
../src/s2/mutable_s2shape_index.h      :| 33                                  ^:

In file included from ../src/s2/base/commandlineflags.h:/usr/local/clang/include/absl/base/nullability.h21::
257In file included from :/usr/local/clang/include/absl/flags/flag.h23::42 :
In file included from note: /usr/local/clang/include/absl/flags/internal/flag.hexpanded from macro 'absl_nullable':
30:
  /usr/local/clang/include/absl/base/call_once.h257: | 97#:d18e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 a   b97s | l _ n u l l aobnlcee __fNlualgl*a balbes
l      _| n                      ^o
nnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2cell_id.cc
:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull muIn file included from ,s2/s2builderutil_s2polyline_vector_layer.cc
:      18| :
                                       ^In file included from 
../src/s2/s2builderutil_s2polyline_vector_layer.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/mutable_s2shape_index.h::2233::
 In file included from ../src/s2/base/commandlineflags.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from /usr/local/clang/include/absl/flags/flag.h  :24142 | :
#In file included from d/usr/local/clang/include/absl/flags/internal/flag.he:f30i:
n/usr/local/clang/include/absl/base/call_once.he: 111a:b40s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul  l111  | _vNooindn uLlolw
L      e| v                     ^e
lCallOnce(aIn file included from bs2/s2cell_id.ccs:l18::
:In file included from o../src/s2/s2cell_id.hn:c43e:
_In file included from f../src/s2/s1angle.hl:a28g:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
fIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:g29,:
 In file included from C/usr/local/clang/include/absl/strings/cord.ha:l94l:
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31&:
&/usr/local/clang/include/absl/synchronization/mutex.h :f550n:,64
:       | warning:                                        ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :55022 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N obnansuel_li
n      t| e                     ^r
nal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                        In file included from  s2/s2builderutil_s2polyline_vector_layer.cc : 18 :
 In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h : 27 :
bIn file included from a../src/s2/mutable_s2shape_index.hs:e33_:
iIn file included from n../src/s2/base/commandlineflags.ht:e21r:
nIn file included from a/usr/local/clang/include/absl/flags/flag.hl::42::
PIn file included from e/usr/local/clang/include/absl/flags/internal/flag.hr:T30h:
r/usr/local/clang/include/absl/base/call_once.he:a153d:S41y:n cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l153_ | n o n n uClall lwO,n
c      e| I                                                               ^m
pl/usr/local/clang/include/absl/base/nullability.h(:s241t:d22::: anote: texpanded from macro 'absl_nonnull'o
mi  c241< | u#idnetf3i2n_et >a*b salb_snlo_nnnounlnlu l_lN ocnonnutlrlo
l      ,| 
                     ^      
|                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2cell_id.ccn:e18 :
aIn file included from b../src/s2/s2cell_id.hs:l43_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable In file included from _s2/s2builderutil_s2polyline_vector_layer.ccN:u18l:
lIn file included from a../src/s2/s2builderutil_s2polyline_vector_layer.hb:l27e:

In file included from       ../src/s2/mutable_s2shape_index.h| :                      ^33
:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 194s2/s2cell_id.cc | :i18n:
lIn file included from i../src/s2/s2cell_id.hn:e43 :
sIn file included from t../src/s2/s1angle.hd::28::
aIn file included from t../src/s2/s2point.ho:m27i:
cIn file included from <../src/s2/s2coder.hu:i23n:
tIn file included from 3/usr/local/clang/include/absl/status/status.h2:_67t:
>In file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:In file included from n94os2/s2cap.cc:
n:nIn file included from 18u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
:lIn file included from 31 ../src/s2/s2cap.h:
C:/usr/local/clang/include/absl/synchronization/mutex.ho30:n:
562tIn file included from :r../src/s2/s1angle.ho23:l:28W :
oIn file included from warning: r../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d:
(27
:
      In file included from |   ../src/s2/s2coder.h                              ^562:
 | 23 :
/usr/local/clang/include/absl/base/nullability.h /usr/local/clang/include/absl/status/status.h:v:241o1031:i:22d42: : L note: owarning: expanded from macro 'absl_nonnull'ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
k
S  l241o | w# (dM1031eu | fHiionnwle i anabebs slcl_o_nnnoIn file included from sons2/s2cell_index.cctnn: nu18sutlal:
lt u_lIn file included from sN ../src/s2/s2cell_index.h_oihn:nontu26we,r ncaol:
ln:lIn file included from s:tS
/usr/local/clang/include/absl/container/flat_hash_set.h tC      :aotnud| i43s                     ^Rte:

ipoIn file included from *n/usr/local/clang/include/absl/container/hash_container_defaults.h *a:In file included from  ba19s2/s2builderutil_s2polyline_vector_layer.ccsb:
:ls_In file included from 18ln_/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
onn:In file included from un59../src/s2/s2builderutil_s2polyline_vector_layer.hlu:
:ll27la /usr/local/clang/include/absl/strings/cord.h:
bSl:In file included from te109../src/s2/mutable_s2shape_index.ha t::cu53s33:o:::
nRd In file included from e,pwarning: ../src/s2/base/commandlineflags.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
T:o
      21P| :
o                      ^In file included from i
/usr/local/clang/include/absl/flags/flag.h  n:t/usr/local/clang/include/absl/base/nullability.h10942e: | :
vr241In file included from o(:/usr/local/clang/include/absl/flags/internal/flag.hi
22:d      :30 |  :
C                                         ^note: /usr/local/clang/include/absl/base/call_once.ho
expanded from macro 'absl_nonnull':p
195y/usr/local/clang/include/absl/base/nullability.h:  C:16241o241: | r: #d22warning: dT:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eo 
fSnote: i  ntexpanded from macro 'absl_nonnull'195er
i |   n  a bg241 s ( | l#_dneocofnnoinncnueles la _tb_sf Nll_Coannnogour*n naulldblsll&
 __       nNos| onr                     ^nnnc
uul,lll  
fsIn file included from       lts2/s2cell_id.cc| ad:                     ^g:18
)::
 sIn file included from {t../src/s2/s2cell_id.h
r:      i43| n:
               ^gIn file included from 
*../src/s2/s1angle.h /usr/local/clang/include/absl/base/nullability.h:a:28b241:
s:In file included from l22../src/s2/s2point.h_::n 27onote: :
expanded from macro 'absl_nonnull'nIn file included from 
n../src/s2/s2coder.hu  :l24123l | :
# In file included from In file included from dd/usr/local/clang/include/absl/status/status.hs2/s2cap.ccesf::ti67n18e):
:
 ;In file included from In file included from a
/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2cap.hb      ::s| 29                                                    ^30l:
_
:
In file included from nIn file included from /usr/local/clang/include/absl/strings/cord.ho../src/s2/s1angle.hn/usr/local/clang/include/absl/base/nullability.h::n:9428u241:
:
l:In file included from In file included from l22/usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2point.h :::_ 3127Nnote: :
expanded from macro 'absl_nonnull':
o/usr/local/clang/include/absl/synchronization/mutex.hn
In file included from :n  ../src/s2/s2coder.h562u241::l | 2358l#:
:
d/usr/local/clang/include/absl/status/status.h       warning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:| f
1038                     ^i:
  n33e562 : | a  bwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sv
lo_ind  o1038Ln | o nc uk lS ll s_oNtwoa(ntnMuuusHl_oilw
n t      In file included from aeb| s2/s2builderutil_s2polyline_vector_layer.cc                     ^rsn:
la_18ln:
:oIn file included from :n../src/s2/s2builderutil_s2polyline_vector_layer.hSn:tu27al:
tlIn file included from u ../src/s2/mutable_s2shape_index.hsh:Ro33ew:
p,In file included from * ../src/s2/base/commandlineflags.h ca:ob21ns:
sltIn file included from In file included from _ n/usr/local/clang/include/absl/flags/flag.hos2/s2cell_index.ccC:onn:42ndu18:
ilt:
In file included from li In file included from /usr/local/clang/include/absl/flags/internal/flag.horn../src/s2/s2cell_index.h:e*p:30 )a26:
 b:
/usr/local/clang/include/absl/base/call_once.h{sIn file included from :
l/usr/local/clang/include/absl/container/flat_hash_set.h200      _::| n                                ^4340u
l:
:lIn file included from /usr/local/clang/include/absl/base/nullability.h a/usr/local/clang/include/absl/container/hash_container_defaults.h:warning: b:241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l19:
e:
22 In file included from :  c/usr/local/clang/include/absl/container/internal/hash_function_defaults.h 200o: | note: vno59expanded from macro 'absl_nonnull'di,:

d
 /usr/local/clang/include/absl/strings/cord.h        L:241| o                                                         ^110 | w
L:/usr/local/clang/include/absl/base/nullability.h#ed55:veef:257liC :nawarning: 23eltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: l
 aOnote: bnscle_expanded from macro 'absl_nullable'  (n
o110  anb | 257nsuv | l#:dleo:lf ioi_ndnNcoen_ne ful aAlagplb*sp
e nld      a_bC| ons                     ^lru
_dlnTlooanbSnltuelr li_ Nnfulgla(lgca,ob nlCsea
tl      l | a                      ^Cb
olred&&&  sfrnc,,
       s| t                                       ^d
::/usr/local/clang/include/absl/base/nullability.hs:tIn file included from 241rs2/s2cell_id.cc:i:22n18:g:
 *note: In file included from  expanded from macro 'absl_nonnull'../src/s2/s2cell_id.ha
b:  s43241l:
_ | In file included from #n../src/s2/s1angle.hod:ne28nf:
iuIn file included from nl../src/s2/s2point.hle:  27ad:
bsIn file included from st../src/s2/s2coder.h)l:_;23
n:
o      In file included from n| /usr/local/clang/include/absl/status/status.hn                                                      ^:u
67l:
l/usr/local/clang/include/absl/base/nullability.hIn file included from  :/usr/local/clang/include/absl/status/internal/status_internal.h_241:N:29o22:
n:In file included from n /usr/local/clang/include/absl/strings/cord.hunote: :lexpanded from macro 'absl_nonnull'94l
:

In file included from         /usr/local/clang/include/absl/strings/internal/cordz_info.h241| : |                      ^#31
d:
e/usr/local/clang/include/absl/synchronization/mutex.hIn file included from f:s2/s2cap.cci565:n:e1836 a:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:b:
 sIn file included from warning: l../src/s2/s2point.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_:
n27o:
  nIn file included from 565n../src/s2/s2coder.h | u: l23 l:
v /usr/local/clang/include/absl/status/status.ho_:iN1063do: n13Un:nu llwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lc

k      S|                       ^l1063
o | wc(oSnysntc hcWhaairt*P aarbasmls_*n oanbnsull_ln uSltlaatbulseM ewsasiatgpe)A sACBSStLr_(A
T      T| R            ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22O:L Dnote: ;expanded from macro 'absl_nonnull'

      |                                      ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* abslIn file included from _s2/s2cell_index.ccn:u18l:
lIn file included from a../src/s2/s2cell_index.hb:l26e:
 In file included from W/usr/local/clang/include/absl/container/flat_hash_set.ha:k43e:
uIn file included from p/usr/local/clang/include/absl/container/hash_container_defaults.h(:
19      :
| In file included from                                  ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.h257::42523::62 :note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #de  f425i | n e  farbiseln_dn uvloliadb lCeo p_yNCuolrldaTbolSet
r      i| n                      ^g
(constIn file included from  s2/s2cell_id.ccC:o18r:
dIn file included from &../src/s2/s2cell_id.h :s43r:
cIn file included from ,../src/s2/s1angle.h :s28t:
dIn file included from :../src/s2/s2point.h::s27t:
rIn file included from i../src/s2/s2coder.hn:g23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94d:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h):;31
:
      /usr/local/clang/include/absl/synchronization/mutex.h| :                                                             ^581
:38: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 581expanded from macro 'absl_nonnull' | 
       241  | b#adseef_iinnet earbnsall_:n:oPnenruTlhlr e_aNdoSnynnuclhl*
       a| b                     ^s
l_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2cell_index.cce:f18i:
nIn file included from e../src/s2/s2cell_index.h :a26b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h_:n43o:
nIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hu:l19l:
 In file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hN:o59n:
n/usr/local/clang/include/absl/strings/cord.hu:l437l:
47      :|                       ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                     In file included from  s2/s2cell_id.cc : 18 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28s:
tIn file included from d../src/s2/s2point.h:::27s:
tIn file included from r../src/s2/s2coder.hi:n23g:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
dIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht:)31;:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 585                                              ^:
20: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 585expanded from macro 'absl_nonnull' | 
    v241o | i#dd eTfriannes (aMbusHlo_wn oanbnsull_ln o_nNnounlnlu lhlo
w      )| ;                     ^ 
 // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2cell_index.cc_:N18o:
nIn file included from n../src/s2/s2cell_index.hu:l26l:

In file included from       /usr/local/clang/include/absl/container/flat_hash_set.h| :                     ^43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2cell_id.cc  :48018 | :
 In file included from  ../src/s2/s2cell_id.h : 43u:
sIn file included from i../src/s2/s1angle.hn:g28 :
pIn file included from o../src/s2/s2point.h:i27n:
tIn file included from e../src/s2/s2coder.hr: 23=:
 In file included from c/usr/local/clang/include/absl/status/status.ho:n67s:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hv:a29l:
uIn file included from e/usr/local/clang/include/absl/strings/cord.h_:t94y:
pIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h*: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l586_:n43o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l;
        586|  |                                       ^ 
 v/usr/local/clang/include/absl/base/nullability.ho:i241d: 22F:e rnote: (expanded from macro 'absl_nonnull'b
as  e241_ | i#ndteefrinnael :a:bPselr_TnhornenaudlSly n_cNho*n naublsll
_      n| o                     ^n
null
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   In file included from es2/s2cell_index.ccx:p18l:
iIn file included from c../src/s2/s2cell_index.hi:t26 :
MIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.ht:e43x:
(In file included from c/usr/local/clang/include/absl/container/hash_container_defaults.h:o19n:
sIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :v59o:
l/usr/local/clang/include/absl/strings/cord.ha:t501i:l52e:  Mwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ex*   a501b | s l _ n uelxlpalbilcei t/ *CihgunnokrIetde*r/a)t o{r}(
      c| o                                       ^r
d_/usr/local/clang/include/absl/base/nullability.hi:n257t:e23r:n anote: lexpanded from macro 'absl_nullable':
:C  o257r | d#Rdeepf*i naeb salb_snlo_nnnuulllla btlree e_)N;u
l      l| a                                                   ^b
le/usr/local/clang/include/absl/base/nullability.h
:      241| :                      ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutIn file included from es2/s2cell_index.ccx:L18o:
cIn file included from k../src/s2/s2cell_index.h(:M26u:
tIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hx:&43 :
mIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.h :A19B:
SIn file included from L/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:I59N:
T/usr/local/clang/include/absl/strings/cord.hE:R582N:A37L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIBU  T582E | _ C A P TeUxRpElDi_cBiYt( tChhiusn)k)R
a      n| g                                                                   ^~~~e
(const Cord* absl_nonnull cord) : cord_(cord/usr/local/clang/include/absl/synchronization/mutex.h): 635{:}29
:       | warning:                                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :63522 | :   note: eexpanded from macro 'absl_nonnull'x
pl  i241c | i#td eMfuitneex Laobcskl(_Mnuotnenxu*l la b_sNlo_nnnounlnlu
l      l|                       ^m
u) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)In file included from 
s2/s2cell_index.cc      :| 18                            ^:

In file included from ../src/s2/s2cell_index.h:/usr/local/clang/include/absl/base/nullability.h26::
241In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h22::43 :
In file included from note: /usr/local/clang/include/absl/container/hash_container_defaults.hexpanded from macro 'absl_nonnull':
19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h241: | 59#:
d/usr/local/clang/include/absl/strings/cord.he:f588i:n17e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o588n | n u l l  c_oNnosntn uClolr
d      *|                       ^a
bsl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2cell_id.ccb:s18l:
_In file included from n../src/s2/s2cell_id.ho:n43n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu AIn file included from Bs2/s2cell_index.ccS:L18_:
IIn file included from N../src/s2/s2cell_index.hT:E26R:
NIn file included from A/usr/local/clang/include/absl/container/flat_hash_set.hL:_43A:
TIn file included from T/usr/local/clang/include/absl/container/hash_container_defaults.hR:I19B:
UIn file included from T/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:_59C:
A/usr/local/clang/include/absl/strings/cord.hP:T641U:R33E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(th  i641s | ) , 
        | u                                                                   ^~~~s
ing pointer = const char* absl_nonnull;
      |                                 ^/usr/local/clang/include/absl/synchronization/mutex.h
:649:/usr/local/clang/include/absl/base/nullability.h29::241 :warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
  649   | 241  |  #edxepfliincei ta bMsult_enxoLnoncukl(lM u_tNeoxn*n ualbls
l      _| n                     ^o
nnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_In file included from ns2/s2cell_id.cco:n18n:
uIn file included from l../src/s2/s2cell_id.hl: 43i:
tIn file included from ,../src/s2/s1angle.h :s28i:
zIn file included from e../src/s2/s2point.h_:t27 :
nIn file included from _../src/s2/s2coder.hb:y23t:
eIn file included from s/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                                           ^:
29:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  670241: | 74#:d ewarning: f'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
ne ab  s670l | _ n oenxnpullilc i_tN oRnenaudlelr
M      u| t                     ^e
xLock(Mutex& mu ABSL_INTEIn file included from Rs2/s2cell_index.ccN:A18L:
_In file included from A../src/s2/s2cell_index.hT:T26R:
IIn file included from B/usr/local/clang/include/absl/container/flat_hash_set.hU:T43E:
_In file included from C/usr/local/clang/include/absl/container/hash_container_defaults.hA:P19T:
UIn file included from R/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:D59_:
B/usr/local/clang/include/absl/strings/cord.hY:(674t:h37i:s )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                                          ^~~~
  674 |   static void Advance(CharIterato/usr/local/clang/include/absl/synchronization/mutex.hr:*678 :a35b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l678l |   i te,x psliizcei_tt  Rne_abdyetreMsu)t;e
x      L| o                                    ^c
k(/usr/local/clang/include/absl/base/nullability.hM:u241t:e22x:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln em ua)b sAlB_SnLo_nSnHuAlRlE D__NLoOnCnKu_lFlU
N      C| T                     ^I
ON(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :s2/s2cell_id.cc43::
18In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2cell_id.h19::
43In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/s1angle.h59::
28/usr/local/clang/include/absl/strings/cord.h:
:In file included from 730../src/s2/s2point.h::3627::
 In file included from ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
730In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from e/usr/local/clang/include/absl/strings/cord.hx:p94l:
iIn file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.hi:t31 :
C/usr/local/clang/include/absl/synchronization/mutex.hh:a681r:R74a:n gwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes](
cons  t681  | C o redx*p laibcsilt_ nRoenanduelrlM uctoerxdL)o c:k (cMourtde_x(&c omrud )A B{S}L
_      I| N                                   ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22A:T Tnote: Rexpanded from macro 'absl_nonnull'I
BU  T241E | _#CdAePfTiUnReE Da_bBsYl(_tnhoinsn)u,l
l       | _                                                                         ^~~~N
onnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   exIn file included from ps2/s2cell_index.ccl:i18c:
iIn file included from t../src/s2/s2cell_index.h :R26e:
aIn file included from d/usr/local/clang/include/absl/container/flat_hash_set.he:r43M:
uIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.he:x19L:
oIn file included from c/usr/local/clang/include/absl/container/internal/hash_function_defaults.hk:(59M:
u/usr/local/clang/include/absl/strings/cord.ht:e736x:*17 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n736n | u l l   mcuo,n scto nCsotr dC*o nadbistli_onno&n ncuolnld )c
o      r| d                                  ^_
;
/usr/local/clang/include/absl/base/nullability.h      :| 241                ^:
22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2cell_id.ccl:_18n:
oIn file included from n../src/s2/s2cell_id.hn:u43l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2cell_index.cc_:n18o:
nIn file included from n../src/s2/s2cell_index.hu:l26l:
 In file included from _/usr/local/clang/include/absl/container/flat_hash_set.hN:o43n:
nIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19
:
      In file included from | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h                     ^:
59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordIn file included from zs2/s2cell_id.ccI:n18f:
oIn file included from *../src/s2/s2cell_id.h :a43b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hG:e23t:
CIn file included from o/usr/local/clang/include/absl/status/status.hr:d67z:
IIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hf:o29F:
oIn file included from r/usr/local/clang/include/absl/strings/cord.hT:e94s:
tIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:g31(:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 722                          ^:
74: /usr/local/clang/include/absl/base/nullability.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]257
:23: note:   expanded from macro 'absl_nullable'722
 |     257e | x#pdleifciinte  Warbistle_rnMuultleaxbLloec k_(NMuultleaxb&l em
u       | A                      ^B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2cell_index.cc
:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2cell_id.ccd:e18f:
iIn file included from n../src/s2/s2cell_id.he: 43a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   ConIn file included from ds2/s2cell_index.cci:t18i:
oIn file included from n../src/s2/s2cell_index.h(:b26o:
oIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h :(43*:
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
l/usr/local/clang/include/absl/strings/cord.hl: 932f:u17n:c )warning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]v
oid  *932  | a b s l _cnounlslta bcihlairt*y _aubnskln_onwunl)l,a
b      l| e                   ^ 
da/usr/local/clang/include/absl/base/nullability.ht:a241(:)22 :c onote: nexpanded from macro 'absl_nonnull's
t;  
241       | | #                ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n257e: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle f_iNnoen naublsll
_      n| u                     ^l
lable In file included from _s2/s2cell_id.ccN:u18l:
lIn file included from a../src/s2/s2cell_id.hb:l43e:

In file included from       ../src/s2/s1angle.h| :                      ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2/s2cell_index.cc:
:In file included from 18/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2cell_index.h:
:/usr/local/clang/include/absl/synchronization/mutex.h26::
801In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h45::43 :
warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h801: | 59 :
 /usr/local/clang/include/absl/strings/cord.hC:o934n:d31i:t iwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
(bo  o934l |   ( * a bvsoli_dn osnentu_ldla tfau(ncco)n(svto icdh*a ra*b salb_snlu_lnlualblialbiltey _duantkan,o wsni)z,e
_      t|                                              ^n
);/usr/local/clang/include/absl/base/nullability.h
:      289| :                              ^34
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullability_unknown'257
:23:   289note:  | expanded from macro 'absl_nullable'#
d  e257f | i#ndee faibnsel _anbuslll_anbuillliatbyl_eu n_kNnuolwlna b_lNeu
l      l| _                      ^u
nspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :s2/s2cell_id.cc19::
18In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/s2cell_id.h59::
43/usr/local/clang/include/absl/strings/cord.h:
:In file included from 935../src/s2/s1angle.h::1128::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23  :
935In file included from  | /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.hh:a29r:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l802l: 19s:e twarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]d
ata  (802s | i z e _ t   n ) ;     / /v oWirdi*t ea bdsalt_an utlol atbhiel irteys_uulntk
n      o| w          ^n
 a/usr/local/clang/include/absl/base/nullability.hr:g241):;22
:       | note:                   ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241289 | :#34d:e fnote: iexpanded from macro 'absl_nullability_unknown'n
e   a289b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
i      l| i                     ^t
y_unknown _Null_unspecifiedIn file included from 
s2/s2cell_index.cc      :| 18                                 ^:

In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2cell_id.cc937: | 18 :
 In file included from  ../src/s2/s2cell_id.h :a43b:
sIn file included from l../src/s2/s1angle.h:::28c:
oIn file included from r../src/s2/s2point.hd:_27i:
nIn file included from t../src/s2/s2coder.he:r23n:
aIn file included from l/usr/local/clang/include/absl/status/status.h:::67C:
oIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hd:R29e:
pIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:a814b:l20e:  twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
e()   814c | o n sCto;n
d      i| t                                  ^i
on/usr/local/clang/include/absl/base/nullability.h(:b257o:o23l:  (note: *expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  faubnscl)_(nTu*l laabbslle_ n_uNlullalbaiblliet
y      _| u                      ^n
known),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2cell_index.cc:18  :
241In file included from  | ../src/s2/s2cell_index.h#:d26e:
fIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hn:e43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
l/usr/local/clang/include/absl/strings/cord.hl: 938_:N35o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^938
 |     aIn file included from bs2/s2cell_id.ccs:l18::
:In file included from c../src/s2/s2cell_id.ho:r43d:
_In file included from i../src/s2/s1angle.hn:t28e:
rIn file included from n../src/s2/s2point.ha:l27::
:In file included from C../src/s2/s2coder.ho:r23d:
RIn file included from e/usr/local/clang/include/absl/status/status.hp:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31s:
_/usr/local/clang/include/absl/synchronization/mutex.ht:r814e:e42(:)  warning: ctype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
nst  ;814
 |        |                                    ^C
on/usr/local/clang/include/absl/base/nullability.hd:i241t:i22o:n (note: bexpanded from macro 'absl_nonnull'o
ol   241( | *#adbesfli_nneo nanbuslll_ nfounnncu)l(lT *_ Naobnsnlu_lnlu
l      l| a                     ^b
ility_unknown)In file included from ,s2/s2cell_index.cc
:      18| :
                                         ^In file included from 
../src/s2/s2cell_index.h:/usr/local/clang/include/absl/base/nullability.h26::
289In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h34::43 :
note: In file included from expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
  In file included from 289/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | :#59d:
e/usr/local/clang/include/absl/strings/cord.hf:i939n:e17 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_n  u939l | l a b i lciotnys_tu nckhnaorw*n  a_bNsull_ln_ounnnsuplelc iafsi_ecdh
a      r| s                                 ^(
) const;
      |                 ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2cell_id.cc::24118::
22In file included from :../src/s2/s2cell_id.h :43note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:  28241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.h_:N94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 815                     ^:
16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |          In file included from  s2/s2cell_index.cc : 18T:
*In file included from  ../src/s2/s2cell_index.ha:b26s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:i19l:
iIn file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hy:_59u:
n/usr/local/clang/include/absl/strings/cord.hk:n941o:w35n:  awarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]g
);
        941|  |                ^ 
  /usr/local/clang/include/absl/base/nullability.h :a289b:s34l:: :note: cexpanded from macro 'absl_nullability_unknown'o
rd  _289i | n#tdeerfnianle: :aCbosrld_Rneupl*l aabbislli_tnyu_lulnakbnloew nc l_eNaurl(l)_;u
n      s| p                                  ^e
ci/usr/local/clang/include/absl/base/nullability.hf:i257e:d23
:       | note:                                  ^expanded from macro 'absl_nullable'

  257 | #define absl_nullable In file included from _s2/s2cell_id.ccN:u18l:
lIn file included from a../src/s2/s2cell_id.hb:l43e:

In file included from       ../src/s2/s1angle.h| :                      ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*abIn file included from ss2/s2cell_index.ccl:_18n:
oIn file included from n../src/s2/s2cell_index.hn:u26l:
lIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hf:u43n:
cIn file included from )/usr/local/clang/include/absl/container/hash_container_defaults.h(:T19*:
 In file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hb:s59l:
_/usr/local/clang/include/absl/strings/cord.hn:u950l:l18a:b iwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ty_u  n950k | n o w n )C,o
r      d| R             ^e
pF/usr/local/clang/include/absl/base/nullability.hl:a241t:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf iMnaek eaFblsalt_WniotnhnEuxltlr a_CNaopnancuiltly
(      s| i                     ^z
e_t eIn file included from xs2/s2cell_id.cct:r18a:
)In file included from ;../src/s2/s2cell_id.h
:      43| :
                 ^In file included from 
../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 830_:N36o:n nwarning: utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
l
      |                        ^830
 |       bool (*absl_nonnIn file included from us2/s2cell_index.ccl:l18 :
fIn file included from u../src/s2/s2cell_index.hn:c26):
(In file included from T/usr/local/clang/include/absl/container/flat_hash_set.h*: 43a:
bIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hl:_19n:
uIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:a59b:
i/usr/local/clang/include/absl/strings/cord.hl:i957t:y27_:u nwarning: ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
own)  ,957
 |        |                                     ^ 
 v/usr/local/clang/include/absl/base/nullability.ho:i289d: 34S:e tnote: Texpanded from macro 'absl_nullability_unknown'r
ee(  C289o | r#ddReefpi*n ea basbls_ln_onnunlullalb irleipt,y _cuonnksnto wCno r_dNzuUlpld_autnesSpceocpief&i esdc
o      p| e                                 ^)
;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2cell_id.ccs:l18_:
nIn file included from o../src/s2/s2cell_id.hn:n43u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |  In file included from  s2/s2cell_index.cc : 18 :
 In file included from t../src/s2/s2cell_index.hy:p26e:
nIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.hm:e43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19::
:In file included from t/usr/local/clang/include/absl/container/internal/hash_function_defaults.hy:p59e:
_/usr/local/clang/include/absl/strings/cord.hi:d961e:n34t:i twarning: ytype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]<
T>:  :961t | y p e *  vaobisdl _SneutlTlraebeiOlriEtmyp_tuyn(kCnoorwdnR
e      p| *                                             ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l289_:n34u:l lnote: aexpanded from macro 'absl_nullability_unknown'b
le   289r | e#pd,e
f      i| n                                 ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:u lnote: lexpanded from macro 'absl_nullable'a
bi  l257i | t#yd_eufniknneo wanb s_lN_unlull_luanbslpee c_iNfuilelda
b      l| e                                 ^

      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.hIn file included from :s2/s2cell_id.cc26::
18In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :../src/s2/s2cell_id.h43::
43In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s1angle.h19::
28In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/s2point.h59::
27/usr/local/clang/include/absl/strings/cord.h:
:In file included from 968../src/s2/s2coder.h::3123::
 In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29968:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
vIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hi:d31 :
E/usr/local/clang/include/absl/synchronization/mutex.hm:p844l:a10c:e Twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
e(C  o844r | d R e p *   aTb*s la_bnsoln_nnuolnln urlelp ,o bMjeetchto,d
I      d| e         ^n
ti/usr/local/clang/include/absl/base/nullability.hf:i241e:r22 :m enote: texpanded from macro 'absl_nonnull'h
od  )241; | 
#      d| e                              ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2cell_index.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h18::
29In file included from :
../src/s2/s2cell_index.hIn file included from :/usr/local/clang/include/absl/strings/cord.h26::
94In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h43::
31In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/synchronization/mutex.h::19845:
:In file included from 45/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:: 59warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:972:31:   845warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      972  | b o o l  v(oaibds lE:m:ptlyapcee_Tirdeeen(tCiotryd<RTe>p:*: taybpsel:_:n*o nanbuslll_ nroenpn,u lclo nmsett hIondl)i(n)e)D;a
t      a| &                                            ^ 
pa/usr/local/clang/include/absl/base/nullability.hr:e241n:t22,:
       note: | expanded from macro 'absl_nonnull'                              ^

  241/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  a_bNsoln_nnuolnln
u      l| l                     ^ 
_Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:In file included from 43s2/s2cell_index.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2cell_index.h:
:In file included from 26../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/strings/cord.h29::
978In file included from :/usr/local/clang/include/absl/strings/cord.h36::94 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h978: | 850 : 16 :  vwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
d C  o850m | m i t T r e ec(ocnosnts tT *C oarbdsRle_pn*o nanbuslll_ noubljleacbtl,e
       o| l               ^d
_r/usr/local/clang/include/absl/base/nullability.he:p241,:
22      :|                                     ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257  :24123 | :# dnote: eexpanded from macro 'absl_nullable'f
in  e257  | a#bdself_innoen naublsll __nNuolnlnaubllle
       _| N                     ^u
llable
      |                       ^
In file included from s2/s2cell_id.cc:In file included from 18s2/s2cell_index.cc:
:In file included from 18../src/s2/s2cell_id.h:
:In file included from 43../src/s2/s2cell_index.h:
:In file included from 26../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/status/status.h:
:/usr/local/clang/include/absl/strings/cord.h67::
979In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h30::29 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h979: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 851 : 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      851  |         C o rbdoRoelp *( aabbssll:_:ntoynpneu_lild ernetpi,t yc<oTn>s:t: tCyopred:z:U*p daabtselS_cnoopnen&u lslc ompeet,h
o      d| )                             ^(
)
/usr/local/clang/include/absl/base/nullability.h      :| 241                                            ^:
22:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'absl_nonnull':
22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from In file included from s2/s2cell_id.cc../src/s2/s2cell_index.h::1826:
:
In file included from In file included from ../src/s2/s2cell_id.h/usr/local/clang/include/absl/container/flat_hash_set.h::4343:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/hash_container_defaults.h::2819:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2759:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2coder.h::98223::
39In file included from :/usr/local/clang/include/absl/status/status.h :warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
982In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from v/usr/local/clang/include/absl/strings/internal/cordz_info.ho:i31d:
 /usr/local/clang/include/absl/synchronization/mutex.hA:p855p:e34n:d Twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
eTo  I855n | l i neexdp(lCiocridtR eCpo*n daibtsilo_nn(ocnonnusltl  btoroele*,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  caobnsdl)_;n
o      n| n                                 ^u
ll _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^
  241 | #define absl_noIn file included from ns2/s2cell_index.ccn:u18l:
lIn file included from  ../src/s2/s2cell_index.h_:N26o:
nIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hu:l43l:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h| :                     ^19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MIn file included from es2/s2cell_id.cct:h18o:
dIn file included from I../src/s2/s2cell_id.hd:e43n:
tIn file included from i../src/s2/s1angle.hf:i28e:
rIn file included from  ../src/s2/s2point.hm:e27t:
hIn file included from o../src/s2/s2coder.hd:)23;:

In file included from       /usr/local/clang/include/absl/status/status.h| :                             ^67
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:  31241:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d886e:f31i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _886n | o n neuxlpll i_cNiotn nCuolnld
i      t| i                     ^o
n(const T* absl_nIn file included from os2/s2cell_index.ccn:n18u:
lIn file included from l../src/s2/s2cell_index.h :o26b:
jIn file included from )/usr/local/clang/include/absl/container/flat_hash_set.h
:      43| :
                              ^In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2259::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'986
:40  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n986e |   a b s lv_oniodn nPurlelp e_ndNTorneneuTlolI
n      l| i                     ^n
ed(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2cell_index.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2cell_index.h/usr/local/clang/include/absl/status/status.h::2667:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/status/internal/status_internal.h::4329:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/strings/cord.h::1994:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::5931:
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/synchronization/mutex.h::988896::3731::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    988896 |  |      e xvpoliidc iPtr eCpoennddiTtrieoenT(ocTorneset( CTo*r daRbespl*_ naobnsnlu_lnlo nonbujl)l
       t| r                              ^e
e,/usr/local/clang/include/absl/base/nullability.h :M241e:t22h:o dnote: Iexpanded from macro 'absl_nonnull'd
en  t241i | f#ideerf imneet haobds)l;_
n      o| n                                    ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2cell_index.ccs2/s2cell_id.cc::1818:
:
In file included from In file included from ../src/s2/s2cell_index.h../src/s2/s2cell_id.h::2643:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h../src/s2/s1angle.h::4328:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h../src/s2/s2point.h::1927:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/s2coder.h::5923:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/status.h989::6731:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
989In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hv:o922i:d48 :P rwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
endT  r922e | e ( CsotradtRiecp *b oaobls lG_unaornannutlele dtErqeuea,l (consMte tChoonddIidteinotni*f iaebrs lm_entuhlolda)b;l
e       | a                              ^,

      | /usr/local/clang/include/absl/base/nullability.h                                               ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 257note: :expanded from macro 'absl_nonnull'23
:   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_ull _Nonnulln
u      l| l                     ^a
ble _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:In file included from 27s2/s2cell_index.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2cell_index.h:
:In file included from 26/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:/usr/local/clang/include/absl/strings/cord.h31::
994/usr/local/clang/include/absl/synchronization/mutex.h::30923:: 48:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
994 |     923  |   v o i d   C o p y T o ( s t d : : s t r i n g *   a b s l _cnoonnsntu lClo nddsitt)i ocno*n satb s{l
_      n| u                             ^l
la/usr/local/clang/include/absl/base/nullability.hb:l241e: 22b:) ;note: 
expanded from macro 'absl_nonnull'      
|                                                ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |  In file included from In file included from  s2/s2cell_id.ccs2/s2builderutil_s2polyline_vector_layer.cc :: 1818v:
:
oIn file included from In file included from i../src/s2/s2cell_id.h../src/s2/s2builderutil_s2polyline_vector_layer.hd:: 43C27:
o:
pIn file included from In file included from y../src/s2/s1angle.h../src/s2/mutable_s2shape_index.hT::o2833A:
:
rIn file included from In file included from r../src/s2/s2point.h../src/s2/base/commandlineflags.ha::y2721(:
:
cIn file included from h/usr/local/clang/include/absl/flags/flag.h../src/s2/s2coder.ha:r:*11023 ::
a29bIn file included from :s/usr/local/clang/include/absl/status/status.h l:_warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67o
:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu  :l11029l |  :
vdIn file included from sot/usr/local/clang/include/absl/strings/cord.hi): d94c :
oSIn file included from ne/usr/local/clang/include/absl/strings/internal/cordz_info.hst:tF;31
l:
a      /usr/local/clang/include/absl/synchronization/mutex.hg| :(                           ^948a
:b10/usr/local/clang/include/absl/base/nullability.hs:l: :241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:F
22l:a  g 948< | note: Texpanded from macro 'absl_nonnull' >
 *b   oa241obl | s #l(d_e*nafobinsnnlue_l nlau lbflslalab_gln,oen  nceuovlnalslt _ _)TN(&co onvn)ns tu{l 
Cl      o
| n                            ^      d
| i                     ^t
/usr/local/clang/include/absl/base/nullability.hi:o241n:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlefiln)e  =a bnsull_lnpotnrn;u
l      l|           ^_
NoIn file included from /usr/local/clang/include/absl/base/nullability.hns2/s2cell_index.cc:n:257u18:l:
23lIn file included from :
../src/s2/s2cell_index.h       :note: | 26expanded from macro 'absl_nullable'                     ^:


In file included from   /usr/local/clang/include/absl/container/flat_hash_set.h257: | 43#:
dIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hf:i19n:
eIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b59s:
l/usr/local/clang/include/absl/strings/cord.h_:n1012u:l37l:a bwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 _Nu l1012l | a b l e 
aIn file included from       bs2/s2builderutil_s2polyline_vector_layer.cc| s:l                      ^:18
::
cIn file included from o../src/s2/s2builderutil_s2polyline_vector_layer.hr:dIn file included from 27_s2/s2cell_id.cc:
i:In file included from n18../src/s2/mutable_s2shape_index.ht:
e:In file included from r33n../src/s2/s2cell_id.h:
a:In file included from l43:../src/s2/base/commandlineflags.h:
::In file included from C21o../src/s2/s1angle.hr:
:d/usr/local/clang/include/absl/flags/flag.h28z::
I118In file included from n:../src/s2/s2point.hf29:o:*27  :
warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bIn file included from s
../src/s2/s2coder.hl:_23  n:
u118lIn file included from l | a/usr/local/clang/include/absl/status/status.hbv:ol67ie:
d In file included from  c/usr/local/clang/include/absl/status/internal/status_internal.hSo:er29td:
FzIn file included from l_/usr/local/clang/include/absl/strings/cord.hia:ng94(f:
aoIn file included from b(/usr/local/clang/include/absl/strings/internal/cordz_info.hs):l 31:c:
:/usr/local/clang/include/absl/synchronization/mutex.hoF:nls948ta:g 48<{:
T >      warning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]|  
a                                    ^b
  s948l/usr/local/clang/include/absl/base/nullability.h | _ :n 257obn:ono23ul:l l(  *fanote: lbexpanded from macro 'absl_nullable'asg
l,_   nc257uo | l#nldsaetb fliVen& e e vva)a bl{s_
l)      (_| c                            ^nou
nls/usr/local/clang/include/absl/base/nullability.hlt:a 241bC:ol22ne:d  _note: iexpanded from macro 'absl_nonnull'Nt
uil  ol241na | *#b dlaebef
sil      n_e| n                      ^ oa
nbnsulll)_ n=o nnnuullllp t_rN;o
n      n| u                                               ^In file included from l
s2/s2cell_index.ccl/usr/local/clang/include/absl/base/nullability.h:
:18      241:
| :In file included from                      ^22../src/s2/s2cell_index.h
:: 26note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:  43241:
 | In file included from #/usr/local/clang/include/absl/container/hash_container_defaults.hd:e19f:
iIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.he: 59a:
b/usr/local/clang/include/absl/strings/cord.hs:l1017_:n51o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _N o1017n | n u l l 
v      o| i                     ^d
 set_cordz_info(cord_inIn file included from ts2/s2cell_id.cce:r18n:
aIn file included from l../src/s2/s2cell_id.h:::43C:
oIn file included from r../src/s2/s1angle.hd:z28I:
nIn file included from f../src/s2/s2point.ho:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
rIn file included from d/usr/local/clang/include/absl/strings/cord.hz:_94i:
nIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.ho:)31 :
{/usr/local/clang/include/absl/synchronization/mutex.h
:      951| :                                                  ^9
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
:22:   951note:  | expanded from macro 'absl_nonnull' 
 v  o241i | d#*d eafbisnle_ naublslla_bnloen naurlgl_  _=N onnunlullplt
r      ;| 
                     ^      
|         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunctiIn file included from os2/s2cell_index.ccn:(18c:
oIn file included from n../src/s2/s2cell_index.hs:t26 :
CIn file included from o/usr/local/clang/include/absl/container/flat_hash_set.hn:d43i:
tIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.ho:n19*:
 In file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hb:s59l:
_/usr/local/clang/include/absl/strings/cord.hn:o1049n:n56u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
);
       | 1049                                                   ^ | 
  /usr/local/clang/include/absl/base/nullability.hs:t241a:t22i:c  note: bexpanded from macro 'absl_nonnull'o
ol   241G | e#tdFelfaitnAeu xa(basbls_ln:o:ncnourldl_ i_nNtoenrnnualll:
:      C| o                     ^r
dRep* absl_nonnull rIn file included from es2/s2cell_id.ccp:,18
:
      In file included from | ../src/s2/s2cell_id.h                                                       ^:
43:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_956N:o52n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  956 |   static bIn file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: owarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 Ca s1050t | A n d C a l l F u n c t i o n ( c o n s t   C o n daibtsilo:n:*s tarbisnlg__nvoinenwu*l la bcs)l;_
n      o| n                                                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241f:r22a:g mnote: eexpanded from macro 'absl_nonnull'n
t)  ;241
 |       #| d                                            ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2cell_index.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1829:
:
In file included from In file included from ../src/s2/s2cell_index.h/usr/local/clang/include/absl/strings/cord.h::2694:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::4331:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/hash_container_defaults.h::95819::
50In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :warning: 59type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/cord.h:1054:  37958: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
tat i1054c |   b o o l   CaabsstlA:n:dcCoarldl_Mienttheordn(aclo:n:sCto rCdoRnedpi*t iaobns*l _anbosnln_unloln nruelpl, 
c      )| ;                                    ^

      | /usr/local/clang/include/absl/base/nullability.h                                                 ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2cell_index.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2cell_index.h:
:In file included from 26/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/container/flat_hash_set.h:
:/usr/local/clang/include/absl/synchronization/mutex.h43::
961In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h34::19 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
  /usr/local/clang/include/absl/strings/cord.h961: | 1061 : 34s:t awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
c b o1061o | l   CvaolildB yCRoepfy(TcooAnrsrta yTS*l oawbPsalt_hn(ocnhnaurl*l  asbesllf_)n o{n
n      u| l                                 ^l
 d/usr/local/clang/include/absl/base/nullability.hs:t241): 22c:o nnote: sexpanded from macro 'absl_nonnull't
;
        241|  |                                  ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
In file included from       s2/s2cell_index.cc| :                              ^18
:
In file included from ../src/s2/s2cell_index.h/usr/local/clang/include/absl/base/nullability.h::26241:
:In file included from 22/usr/local/clang/include/absl/container/flat_hash_set.h:: 43note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:  19241:
 | In file included from #/usr/local/clang/include/absl/container/internal/hash_function_defaults.hd:e59f:
i/usr/local/clang/include/absl/strings/cord.hn:e1078 :a33b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn u1078l | l   _aNbosnln:u:lclo
r      d| _                     ^i
nternal::CordRep* absl_In file included from ns2/s2cell_id.cco:n18n:
uIn file included from l../src/s2/s2cell_id.hl: 43T:
aIn file included from k../src/s2/s1angle.he:R28e:
pIn file included from (../src/s2/s2point.h): 27c:
oIn file included from n../src/s2/s2coder.hs:t23&:
;In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 979#:d43ef:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl  _979n | o n nsutlalt i_cN obnonoull lA
l      w| a                     ^y
sTrue(const ConditionIn file included from *s2/s2cell_index.cc :a18b:
sIn file included from l../src/s2/s2cell_index.h_:n26u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.ha:b43l:
eIn file included from )/usr/local/clang/include/absl/container/hash_container_defaults.h :{19 :
rIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:u59r:
n/usr/local/clang/include/absl/strings/cord.h :t1079r:u33e:;  warning: }type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                           ^
 1079 | /usr/local/clang/include/absl/base/nullability.h : 257a:b23s:l :note: :expanded from macro 'absl_nullable'c
or  d257_ | i#ndteefrinnael :a:bCsolr_dnRuelpl*a balbes l__Nnuolnlnaubllle 
T      a| k                      ^e
Rep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:In file included from 37s2/s2cell_id.cc:: 18warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2cell_id.h:43:
In file included from  ../src/s2/s1angle.h1116: | 28 :
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from  ../src/s2/s2coder.hc:r23c:
_In file included from i/usr/local/clang/include/absl/status/status.hn:t67e:
rIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.ha:l29::
:In file included from C/usr/local/clang/include/absl/strings/cord.hr:c94C:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hd:S31t:
a/usr/local/clang/include/absl/synchronization/mutex.ht:e1033*: 20a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nul l1033a | b l ev oMiady bWeaGiett(CMructCeoxr*d Satbastle_(n)o ncnounlslt ;m
u      )|                                      ^{

      | /usr/local/clang/include/absl/base/nullability.h                   ^:
257:23/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nullable'22
:   note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbuslll_anbolnen u_lNlu l_lNaobnlneu
l      l| 
                      ^      
|                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.hIn file included from :s2/s2cell_index.cc43::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2cell_index.h28::
26In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h27::
43In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h23::
19In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h67::
59In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/cord.h::291120:
:In file included from 30/usr/local/clang/include/absl/strings/cord.h:: 94:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
 /usr/local/clang/include/absl/synchronization/mutex.h1120: | 1050 : 31v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Copy T1050o | A r rbaoyoIlm pWla(icthWairt*h Taibmselo_unto(nMnuutlelx *d satb)s lc_onnosntn;u
l      l|                               ^m
u,/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:: :note: Dexpanded from macro 'absl_nonnull'u
ra  t241i | o#nd etfiimneeo uatb)s l{_
n      o| n                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2cap.ccs2/s2cell_id.cc::1818:
:
In file included from In file included from ../src/s2/s2cap.h../src/s2/s2cell_id.h::3143:
:
In file included from In file included from ../src/s2/s1chord_angle.h../src/s2/s1angle.h::3128:
:
In file included from In file included from ../src/s2/s2pointutil.h../src/s2/s2point.h::2727:
:
In file included from ../src/s2/util/math/matrix3x3.h../src/s2/s2coder.h::27623::
5In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:  94276:
 | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
S/usr/local/clang/include/absl/synchronization/mutex.h2:_1146C:H7E:C Kwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
E(de t1146, |   V T y p e (t0h)i)s )<)<  A"B SCLa_nE'XtC LiUnSvIeVrEs_eL.O CDKe_tFeUrNmCiTnIaOnNt( m=u )0
.      "| ;      ^~~~

      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE /usr/local/clang/include/absl/synchronization/mutex.hC:H1153E:C39K:_ Nwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                     ^
 1153 | /usr/local/clang/include/absl/log/check.h : 120e:x3p:l inote: cexpanded from macro 'CHECK_NE'i
t R  e120l | e a sAaBbSlLe_MLuOtGe_xILNoTcEkR(NMAuLt_eCxH*E CaKb_sNlE__nIoMnPnLu(l(lv amlu1))
,       | #                                      ^v
al1/usr/local/clang/include/absl/base/nullability.h,: 241(:v22a:l 2note: )expanded from macro 'absl_nonnull',
 #  v241a | l#2d)e
f      i| n  ^e
 a/usr/local/clang/include/absl/log/internal/check_impl.hb:s51l:_3n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'u
ll    _51N | o n nAuBlSlL
_      L| O                     ^G
_INTERNAL_CHECK_OP(Check_NE, !=, val1In file included from ,s2/s2cell_id.cc :v18a:
lIn file included from 1../src/s2/s2cell_id.h_:t43e:
xIn file included from t../src/s2/s1angle.h,: 28v:
aIn file included from l../src/s2/s2point.h2:,27 :
vIn file included from a../src/s2/s2coder.hl:223_:
tIn file included from e/usr/local/clang/include/absl/status/status.hx:t67):

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :  ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/log/internal/check_op.h94::
68In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP':
1158:53:    68warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
 whi l1158e |   ( c o n s tM uctheaxr&*  maub sAlB_SnLu_lIlNaTbElReN AaLb_sAlT_TlRoIgB_UiTnEt_eCrAnPaTlU_RcEhDe_cBkY_(otph_irse)s,u
l      t|                                                      ^~~~ 
         \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define /usr/local/clang/include/absl/synchronization/mutex.habs:l1166_:n39u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le _ N1166u | l l aebxlpel
i      c| i                      ^t
 ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2cap.cc::24118::
22In file included from :../src/s2/s2cap.h :31note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1chord_angle.h:31  :
241In file included from  | ../src/s2/s2pointutil.h#:d27e:
f../src/s2/util/math/matrix3x3.hi:n276e: 5a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
no../src/s2/base/logging.hn:n37u:l21l:  _note: Nexpanded from macro 'S2_CHECK_NE'o
nnu   l37l | 
#      d| e                     ^f
ine S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTEIn file included from Rs2/s2cell_id.ccN:A18L:
_In file included from C../src/s2/s2cell_id.hH:E43C:
KIn file included from _../src/s2/s1angle.hN:E28_:
IIn file included from M../src/s2/s2point.hP:L27(:
(In file included from v../src/s2/s2coder.ha:l231:
)In file included from ,/usr/local/clang/include/absl/status/status.h :#67v:
aIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h1:,29 :
(In file included from v/usr/local/clang/include/absl/strings/cord.ha:l942:
)In file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :#31v:
a/usr/local/clang/include/absl/synchronization/mutex.hl:21179):
10      :|    ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:51:3 :1179  | note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
Mut   e51x | *   aAbBsSlL__nLuOlGl_aIbNlTeE RmNuA_L;_
C      H| E         ^C
K_/usr/local/clang/include/absl/base/nullability.hO:P257(:C23h:e cnote: kexpanded from macro 'absl_nullable'_
NE  ,257  | !#=d,e fvianle1 ,a bvsall_1n_utlelxatb,l ev a_lN2u,l lvaabll2e_
t      e| x                      ^t
)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |    In file included from  s2/s2cell_index.ccb:o18o:
lIn file included from  ../src/s2/s2cell_index.h(:*26a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_set.hl:_43n:
oIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hn:u19l:
lIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.hf:u59n:
c)/usr/local/clang/include/absl/strings/cord.h(:T1140*: 49a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nullab i1140l | i t y _ u n k n o w n ) , 
        |             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241C | o#rddeRfeipnEex taebrsnla_ln*o nanbuslll_ n_oNnonnunlull lr
e      p| )                     ^;

      |                                                 ^In file included from 
s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h/usr/local/clang/include/absl/base/nullability.h::43241:
:In file included from 22../src/s2/s1angle.h:: 28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n1230u:l34l:
       warning: | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]                     ^

 1230 |     bool (*absl_nonnull func)In file included from (s2/s2cell_index.ccT:*18 :
aIn file included from b../src/s2/s2cell_index.hs:l26_:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43a:
bIn file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hl:i19t:
yIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:n59k:
n/usr/local/clang/include/absl/strings/cord.ho:w1146n:)10,:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                 ^

/usr/local/clang/include/absl/base/nullability.h: 2891146: | 34C:o rnote: dexpanded from macro 'absl_nullability_unknown'R
ep  *289  | a#bdself_innoen naublsll _NneuwlElxatbeirlniatlyR_eupn(kanboswln: :_sNturliln_gu_nvsipeewc idfaitead,

            | |                                  ^         ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2cell_id.ccd:e18f:
iIn file included from n../src/s2/s2cell_id.he: 43a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2cell_id.cc::24118::
22In file included from :../src/s2/s2cell_id.h :43note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :_94N:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h
:      1241| :                     ^12
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47In file included from :s2/s2cell_id.cc :warning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2cell_id.h:43:
 In file included from 1183../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1242 : 44C:o rwarning: dtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]R
ep*  a1242b | s l _ n utlylpaebnlaem er eapb)s
l      :| :                                              ^t
ype/usr/local/clang/include/absl/base/nullability.h_:i257d:e23n:t inote: texpanded from macro 'absl_nullable'y
<T  >257: | :#tdyepfei*n ea basbls_ln_unlullalbaiblliet y__Nuunlklnaobwlne

            | |                                            ^                      ^

/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:In file included from 19s2/s2cell_id.cc:
:In file included from 18/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59../src/s2/s2cell_id.h:
:43/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1222../src/s2/s1angle.h::5228::
 In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s2coder.h:23 :
1222In file included from  | /usr/local/clang/include/absl/status/status.hi:n67l:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29v:
oIn file included from i/usr/local/clang/include/absl/strings/cord.hd: 94C:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hd::31::
I/usr/local/clang/include/absl/synchronization/mutex.hn:l1259i:n14e:R ewarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:S w1259a | p ( C o rcdo:n:sItn lTi*n eaRbespl*_ naobnsnlu_lnlo nonbujlelc tr,h
s      )|               ^{

      | /usr/local/clang/include/absl/base/nullability.h                                                   ^:
241:22:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'absl_nonnull':
22:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull metIn file included from hs2/s2cell_index.cco:d18):
(In file included from )../src/s2/s2cell_index.h
:      26| :
                                          ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:/usr/local/clang/include/absl/base/nullability.h43::
241In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h22::19 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59  :
241 | /usr/local/clang/include/absl/strings/cord.h#:d1230e:f20i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_ n1230o | ninnulliln e_ Ncoonnnsutl lc
h      a| r                     ^*
 absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2cell_id.ccn:e18 :
aIn file included from b../src/s2/s2cell_id.hs:l43_:
nIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he: 27_:
NIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/status/status.he:
67      :
| In file included from                       ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*abIn file included from ss2/s2cell_index.ccl:_18n:
oIn file included from n../src/s2/s2cell_index.hn:u26l:
lIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hf:n43):
(In file included from i/usr/local/clang/include/absl/container/hash_container_defaults.hn:t196:
4In file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht: 59w:
a/usr/local/clang/include/absl/strings/cord.hi:t1234_:c20y:c lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
));
       1234|  |                                   ^i
nl/usr/local/clang/include/absl/base/nullability.hi:n241e: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo nCnourldl: :_INnolninnuelRle
p      :| :                     ^a
s_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2cell_id.cc
:18  :
241In file included from  | ../src/s2/s2cell_id.h#:d43e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnullIn file included from  s2/s2cell_index.ccf:n18):
(In file included from c../src/s2/s2cell_index.ho:n26s:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.hc:h43a:
rIn file included from */usr/local/clang/include/absl/container/hash_container_defaults.h :a19b:
sIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:n59o:
n/usr/local/clang/include/absl/strings/cord.hn:u1239l:l38 :m swarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                                 ^
 1239 | /usr/local/clang/include/absl/base/nullability.hi:n241l:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  :241: | c#odredf_iinnet earbnsall_:n:oCnonrudlRle p_*N oanbnsull_ln
o      n| n                     ^u
ll CIn file included from os2/s2cell_id.ccr:d18::
:In file included from I../src/s2/s2cell_id.hn:l43i:
nIn file included from e../src/s2/s1angle.hR:e28p:
:In file included from :../src/s2/s2point.ha:s27_:
tIn file included from r../src/s2/s2coder.he:e23(:
)In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31  :
241/usr/local/clang/include/absl/synchronization/mutex.h | :#1293d:e62f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs l1293_ | nvoonindu lRle g_iNsotnenruMlult
e      x| T                     ^r
acer(void (*absl_nonnull fn)(const char* absl_nonnull mIn file included from ss2/s2cell_index.ccg:,18
      :
| In file included from                                                              ^../src/s2/s2cell_index.h
:26/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/flat_hash_set.h::2243::
 In file included from note: /usr/local/clang/include/absl/container/hash_container_defaults.hexpanded from macro 'absl_nonnull':
19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h241: | 59#:
d/usr/local/clang/include/absl/strings/cord.he:f1245i:n38e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_no n1245n | uilnll i_nNeo nanbuslll:
:      c| o                     ^r
d_internaIn file included from ls2/s2cell_id.cc:::18C:
oIn file included from r../src/s2/s2cell_id.hd:R43e:
pIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from  /usr/local/clang/include/absl/status/status.hC:o67r:
dIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h::I29n:
lIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94R:
eIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.h:::31t:
r/usr/local/clang/include/absl/synchronization/mutex.he:e1294(:)62
:       | warning:                                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h :1294257 | : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
   const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:In file included from 18s2/s2cell_index.cc:
:In file included from 18../src/s2/s2cell_id.h:
:In file included from 43../src/s2/s2cell_index.h:
:In file included from 26../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1258/usr/local/clang/include/absl/status/internal/status_internal.h::3629::
 In file included from warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h :125831 | :
i/usr/local/clang/include/absl/synchronization/mutex.hn:l1309i:n35e:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
d_i n1309t | evroniadl :R:eCgoirsdtReerpCFolnadtV*a raTbrsalc_enro(nvnouildl 
(      *| a                                   ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
fn  )241( | 
#      d| e                                  ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
n  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2cell_index.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2cell_index.h:
:In file included from 26../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/flat_hash_set.h:
:In file included from 43/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/strings/cord.h94::
1268In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h51::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1310:47:  warning: 1268type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
inl i1310n | e   v o icdo nCsotr dc:h:aIrn*l ianbesRle_pn:o:nEnmupllla cmesTgr,e ec(oCnosrtd Rveopi*d *a basbls_ln_onnonnunlull lr ecpv,)
)      ;| 
                                                  ^      
|                                               ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnullIn file included from  s2/s2cell_id.ccd:s18t:
)In file included from  ../src/s2/s2cell_id.hc:o43n:
sIn file included from t../src/s2/s1angle.h :=28 :
0In file included from ;../src/s2/s2point.h
:      27| :
                          ^In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/strings/cord.h:  109241: | 53#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a  b109s | lv_oniodn nCuolply C_oNrodnTnouSltlr
i      n| g                     ^(
const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59In file included from :
s2/s2cell_id.cc:/usr/local/clang/include/absl/strings/cord.h18::
1505In file included from :../src/s2/s2cell_id.h41::43 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
 In file included from 1505../src/s2/s2coder.h | :i23n:
lIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
vIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hi:d29 :
C/usr/local/clang/include/absl/strings/cord.ho:r501d::52::C owarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
ToAr  r501a | y I m p le(xcphlairc*i ta bCshlu_nnkoIntneurlalt odrs(tc)o rcdo_nisntt e{
r      n| a                                        ^l
::Co/usr/local/clang/include/absl/base/nullability.hr:d241R:e22p:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln et raebes)l;_
n      o| n                                                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^In file included from #
s2/s2cap.ccd:e26f:
iIn file included from n/usr/local/clang/include/absl/flags/flag.he: 42a:
bIn file included from s/usr/local/clang/include/absl/flags/internal/flag.hl:_30n:
o/usr/local/clang/include/absl/base/call_once.hn:n52u:l24l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul   l52
 |       s| t                     ^d
::atomic<uint32_t>* absIn file included from ls2/s2cell_id.cc_:n18o:
nIn file included from n../src/s2/s2cell_id.hu:l43l:
 In file included from C../src/s2/s1angle.ho:n28t:
rIn file included from In file included from o../src/s2/s2point.hls2/s2cell_index.cc:W:27o18:
r:
In file included from dIn file included from ../src/s2/s2coder.h(../src/s2/s2cell_index.h:
:23      26:
| :
In file included from                        ^In file included from /usr/local/clang/include/absl/status/status.h
/usr/local/clang/include/absl/container/flat_hash_set.h::67/usr/local/clang/include/absl/base/nullability.h43:
::
In file included from 241In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/hash_container_defaults.h:22:29:19:
 :
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull'In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h504:  :5924140:
 | :#/usr/local/clang/include/absl/strings/cord.h d:warning: e1514type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f:
i29n:e    504warning: a | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b 
s l _  ne1514ox | npnl ui lcl i  cto_ rNCdo_hniunnutnelkrlIn
at      le| :r                     ^:aC
toorrd(RceoIn file included from pns2/s2cap.cc*s :at26b :
sCIn file included from lo/usr/local/clang/include/absl/flags/flag.hr_:nd42o*:
 nIn file included from an/usr/local/clang/include/absl/flags/internal/flag.hbu:sl30ll:
 _t/usr/local/clang/include/absl/base/call_once.hnr:eo53en:)n22u :l{ l
warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      c
o| r   d                            ^53)
 | ; 
/usr/local/clang/include/absl/base/nullability.h        :|                                         ^241a
:b22/usr/local/clang/include/absl/base/nullability.hs::l :241note: ::oexpanded from macro 'absl_nonnull'22n
:c e  note: _241expanded from macro 'absl_nonnull'f | 
l#a  dg241*e |  #fadibensfeli _nanebo snalnb_usnllo_nlnn oufnllnlau lgl_) N;_o
Nn      on| nu                     ^nl
ull/usr/local/clang/include/absl/base/nullability.h
l:
      241      | :|                      ^22                     ^
:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2cell_id.ccn:n18u:
lIn file included from l../src/s2/s2cell_id.h :_43N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2cap.cc241: | 26#:
dIn file included from e/usr/local/clang/include/absl/flags/flag.hf:i42n:
eIn file included from  /usr/local/clang/include/absl/flags/internal/flag.ha:b30s:
l/usr/local/clang/include/absl/base/call_once.h_:n96o:n33n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Non   n96u | l l 
f      r| i                     ^e
nd std::atomic<uint32_t>* absl_nonnull base_internal::ControlIn file included from Ws2/s2cell_id.cco:r18d:
(In file included from 
../src/s2/s2cell_id.h      :| 43                                ^:

In file included from ../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from In file included from ds2/s2cell_index.cc/usr/local/clang/include/absl/status/internal/status_internal.he::f1829i:
:
nIn file included from /usr/local/clang/include/absl/strings/cord.he../src/s2/s2cell_index.h: :525a26:b:
35sIn file included from :l/usr/local/clang/include/absl/container/flat_hash_set.h _:warning: n43type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o:

nIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hu  :l52519l | :
  In file included from _ N/usr/local/clang/include/absl/container/internal/hash_function_defaults.h o :nan59bu:
sl/usr/local/clang/include/absl/strings/cord.hll::
:1525      c:| o                     ^29r
d:_ iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
In file included from es2/s2cap.ccr: n26a1525:
l | In file included from : /usr/local/clang/include/absl/flags/flag.h :: C42o :
rcIn file included from od/usr/local/clang/include/absl/flags/internal/flag.hrR:ed30_p:
i*/usr/local/clang/include/absl/base/call_once.h n:ta97ebr:ns18la:_l n:warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:lC
loa   rb97dlR | ee p  *c  ua rb sr elonn_tcn_eol_enfanlfau_gl *l=   antbusrllele_p)nt o{r
n;n      
u|       l                            ^| l                                  ^
 
f/usr/local/clang/include/absl/base/nullability.hl/usr/local/clang/include/absl/base/nullability.ha::g241257)::;2223
::        | note: note: expanded from macro 'absl_nonnull'                 ^expanded from macro 'absl_nullable'


  /usr/local/clang/include/absl/base/nullability.h241  : | 257#241 | d:#e22df:ie fnnote: eiexpanded from macro 'absl_nonnull'n 
ea  b 241sa | lb#_sndole_nfninunluell la ab_bNlsoel n__nnuNolunll
nl      ual| bll                     ^ e_

N      o| n                      ^n
ull
      |                      ^
In file included from s2/s2cap.cc:26:
In file included from In file included from s2/s2cell_index.cc/usr/local/clang/include/absl/flags/flag.h::1842:
:
In file included from In file included from ../src/s2/s2cell_index.h/usr/local/clang/include/absl/flags/internal/flag.h::2630:
:
In file included from /usr/local/clang/include/absl/base/call_once.h/usr/local/clang/include/absl/container/flat_hash_set.h::11143::
40In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :warning: 19type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
  /usr/local/clang/include/absl/strings/cord.h111: | 1530v:o55i:d  warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wLev e1530In file included from l | s2/s2cell_id.cciCn:al18li:
nlIn file included from Oe../src/s2/s2cell_id.h nC:co43er:
(dIn file included from :a../src/s2/s1angle.h:b:Cs28hlu:
:nIn file included from k:../src/s2/s2point.hIo:tn27ec:
reaIn file included from _t../src/s2/s2coder.hof:rl23:a:
:gIn file included from C*/usr/local/clang/include/absl/status/status.hh :au67bn:
skIn file included from lI/usr/local/clang/include/absl/status/internal/status_internal.h_t:ne29ro:
na/usr/local/clang/include/absl/strings/cord.hnt:our582(l:clo37 n:fs ltwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g 
C,o r  Cd582a* | l  l aab bs leelx&_p&ln ifocnnin,tu
l l       Cc| ho                                       ^ur
dn)/usr/local/clang/include/absl/base/nullability.hk :R{241a
:n      22g| :e                                                      ^ (
note: cexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.ho
n:s  t241241 : | C#22odr:edf *i note: nexpanded from macro 'absl_nonnull'ae
b sa  lb_241snlo | _n#nndouenlfnliun leclo  ra_bdNs)ol _nn:no nucnloulrl
dl       _| (_                     ^cN
oorndn)u l{l}

            | |                      ^                                    ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const In file included from cs2/s2cap.cch:a26r:
*In file included from  /usr/local/clang/include/absl/flags/flag.ha:b42s:
lIn file included from _/usr/local/clang/include/absl/flags/internal/flag.hn:o30n:
n/usr/local/clang/include/absl/base/call_once.hu:l153l:;41
:       | warning:                                 ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:  22153: |   note:  expanded from macro 'absl_nonnull' 
 C  a241l | l#OdnecfeiInmep la(bsstld_:n:oantnoumlilc <_uNionntn3u2l_lt
>      *|                       ^a
bsl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absIn file included from ls2/s2cap.cc_:n26o:
nIn file included from n/usr/local/clang/include/absl/flags/flag.hu:l42l:
 In file included from i/usr/local/clang/include/absl/flags/internal/flag.ht:,30 :
s/usr/local/clang/include/absl/base/call_once.hi:z194e:_31t:  nwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ytes  )194; | 
i      n| l                                    ^i
ne/usr/local/clang/include/absl/base/nullability.h :s241t:d22::: anote: texpanded from macro 'absl_nonnull'o
mi  c241< | u#idnetf3i2n_et >a*b salb_snlo_nnnounlnlu l_lN oCnonnutlrlo
l      W| o                     ^r
d(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_In file included from fs2/s2cell_id.ccl:a18g:
*In file included from  ../src/s2/s2cell_id.ha:b43s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
fIn file included from l../src/s2/s2coder.ha:g23):
 In file included from {/usr/local/clang/include/absl/status/status.h
:      67| :
               ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/strings/cord.h::22730:: 36:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e730 | f i n e  eaxbpslli_cniotn nCuhlalr R_aNnognen(ucloln
s      t|                       ^C
ord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2cap.ccs:l26_:
nIn file included from o/usr/local/clang/include/absl/flags/flag.hn:n42u:
lIn file included from l/usr/local/clang/include/absl/flags/internal/flag.h :_30N:
o/usr/local/clang/include/absl/base/call_once.hn:n200u:l40l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  200 | void LowLevelCallOnce(absl::In file included from os2/s2cell_id.ccn:c18e:
_In file included from f../src/s2/s2cell_id.hl:a43g:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
fIn file included from l/usr/local/clang/include/absl/status/status.ha:g67,:
 In file included from C/usr/local/clang/include/absl/status/internal/status_internal.ha:l29l:
a/usr/local/clang/include/absl/strings/cord.hb:l736e:&17&:  fwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                                          ^736
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
Co  r241d | *# daebfsiln_en oanbnsull_ln ocnonrudl_l; 
_      N| o                ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :s2/s2cell_id.cc59::
18:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2cell_id.h::166643::
48In file included from :../src/s2/s1angle.h :28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h: 231666:
 | In file included from i/usr/local/clang/include/absl/status/status.hn:l67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :C29o:
rd/usr/local/clang/include/absl/strings/cord.h :C898o:r27d:: :warning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
vanc  e898A | n d Rferaide(nCdh acroIntsetr aCtoorrd*z Ianbfsol*_ naobnsnlu_lnlu lilta,b
l      e|                                                 ^G
etC/usr/local/clang/include/absl/base/nullability.ho:r241d:z22I:n fnote: oexpanded from macro 'absl_nonnull'F
or  T241e | s#tdienfgi(n
e       | a                          ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
_N  o257n | n#udlelf
i      n| e                     ^ 
absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:26:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2cell_id.ccu:l18l:
 In file included from _../src/s2/s2cell_id.hN:o43n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cap.cc:26:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  _Nonnull
      |                      ^
In file included from s2/s2cap.cc:26:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
s2/s2cell_id.cc  :24118 | :
#In file included from d../src/s2/s2cell_id.he:f43i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      | /usr/local/clang/include/absl/strings/cord.h                     ^:
1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StaIn file included from ts2/s2cell_id.ccu:s18R:
eIn file included from p../src/s2/s2cell_id.h*: 43a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.hC:l23o:
nIn file included from e/usr/local/clang/include/absl/status/status.h(:
67      :
| In file included from              ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::1222241::5222::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241  | 1222# | dienfliinnee  avbosild_ nCoonrndu:l:lI n_lNionnenRuelpl:
:      S| w                     ^a
p(Cord::InlineRep* absl_nonnull rhs) {
      | In file included from                                                    ^s2/s2builderutil_s2polyline_vector_layer.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builderutil_s2polyline_vector_layer.h::24127::
22In file included from :../src/s2/mutable_s2shape_index.h :41note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2cell_id.h:43  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
l/usr/local/clang/include/absl/status/internal/status_internal.hl: 125_:N14o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^125
 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.ccIn file included from :s2/s2builderutil_s2polyline_vector_layer.cc18::
18In file included from :
../src/s2/s2cell_id.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h43::
27In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/mutable_s2shape_index.h28::
41In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2cell_id.h27::
43In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s1angle.h23::
28In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2point.h67::
27In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2coder.h29::
23:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/status.h1230::6720:
: /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 128type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
14: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1230
 | in  l128i | n e  Sctoantsuts Rcehpa*r *a basbls_ln_onnunlullalb lCel oCnoerAdn:d:UInnrleifn(e)R ecpo:n:sdta;t
a      (| )             ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22{:
       note: | expanded from macro 'absl_nonnull'                   ^

  241/usr/local/clang/include/absl/base/nullability.h | :#257d:e23f:i nnote: eexpanded from macro 'absl_nullable' 
ab  s257l | _#ndoenfniunlel  a_bNsoln_nnuullll
a      b| l                     ^e
 _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2cell_id.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2cell_id.h::2343:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1angle.h::73228::
29In file included from :../src/s2/s2point.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h732: | 67 :
 In file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht:a29t:
i/usr/local/clang/include/absl/strings/cord.hc: 1505c:o41n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
td:: s1505t | riinnlgi*n ea bvsoli_dn oCnonrudl:l: CEomppytTyoSAtrrrianygI(m)p;l
(      c| h                            ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #ddsetf)i nceo nasbts l{_
n      o| n                                        ^n
ull /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                      ^  
241 | #define absl_nonnull _In file included from Ns2/s2builderutil_s2polyline_vector_layer.cco:n18n:
uIn file included from l../src/s2/s2builderutil_s2polyline_vector_layer.hl:
27      :
| In file included from                      ^../src/s2/mutable_s2shape_index.h
:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromStrIn file included from is2/s2cell_id.ccn:g18(:
)In file included from ;../src/s2/s2cell_id.h
:      43| :
                            ^In file included from 
../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
n/usr/local/clang/include/absl/strings/cord.he: 1514a:b29s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu l1514l |   _ N o ncnourldl_
i      n| t                     ^e
rnal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2builderutil_s2polyline_vector_layer.cc_:n18o:
nIn file included from n../src/s2/s2builderutil_s2polyline_vector_layer.hu:l27l:
 In file included from _../src/s2/mutable_s2shape_index.hN:o41n:
nIn file included from u../src/s2/s2cell_id.hl:l43
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2cell_id.cc::24118::
22In file included from :../src/s2/s2cell_id.h note: :expanded from macro 'absl_nonnull'43
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 /usr/local/clang/include/absl/strings/cord.h_:N1525o:n29n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2builderutil_s2polyline_vector_layer.cc241::1822:
:In file included from  ../src/s2/s2builderutil_s2polyline_vector_layer.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/mutable_s2shape_index.h  :24141 | :
#In file included from d../src/s2/s2cell_id.he:f43i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 _/usr/local/clang/include/absl/status/status.hN:o1031n:n42u:l lwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:27:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2builderutil_snap_functions.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2builderutil_snap_functions.h/usr/local/clang/include/absl/status/internal/status_internal.h::23150:
:In file included from 25../src/s2/s1angle.h:: 28:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:25:
In file included from ../src/s2/util/coding/coder.h  :15036 | :
 In file included from  ../src/s2/base/casts.h : 34c:
oIn file included from n/usr/local/clang/include/absl/log/log.hs:t209 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hs:l22::
:/usr/local/clang/include/absl/log/internal/log_message.hS:t71a:t26u:s *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_   n71o | n n uLlolg Msetsastaugse,( ccoonnsstt  cchhaarr**  aabbssll__nnoonnnnuullll  fpirleef,i xi)n;t
       l| i                        ^n
e,/usr/local/clang/include/absl/base/nullability.h
:      241| :                         ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* In file included from as2/s2builderutil_snap_functions.ccb:s18l:
_In file included from n../src/s2/s2builderutil_snap_functions.ho:n23n:
uIn file included from l../src/s2/s1angle.hl: 28s:
tIn file included from a../src/s2/s2point.ht:u25s:
,In file included from  ../src/s2/util/coding/coder.hc:o36n:
sIn file included from t../src/s2/base/casts.h :c34h:
aIn file included from r/usr/local/clang/include/absl/log/log.h*: 209a:
bIn file included from s/usr/local/clang/include/absl/log/internal/log_impl.hl:_22n:
o/usr/local/clang/include/absl/log/internal/log_message.hn:n78u:l26l:  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
efix   )78; | 
        | L                                                         ^o
gM/usr/local/clang/include/absl/base/nullability.he:s241s:a22g:e (note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu lfli l_eN,o ninnutl ll
i      n| e                     ^,

      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 | In file included from  s2/s2cell_id.cc :L18o:
gIn file included from M../src/s2/s2cell_id.he:s43s:
aIn file included from g../src/s2/s1angle.he:&28 :
oIn file included from p../src/s2/s2point.he:r27a:
tIn file included from o../src/s2/s2coder.hr:<23<:
(/usr/local/clang/include/absl/status/status.hw:c725h:a38r:_ twarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _725n | u l lsatbaltei cv )s;t
a      t| u                                  ^s
_i/usr/local/clang/include/absl/base/nullability.hn:t257e:r23n:a lnote: :expanded from macro 'absl_nullable':
St  a257t | u#sdReefpi*n ea basbls_ln_onnunlullalb lPer e_pNaurlelTaobMloed
i      f| y                      ^(

      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2cell_id.cc
:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190   | 732  |   L osgtMaetsisca gceo&n sotp esrtadt:o:rs<t<r(isntgd*: :aobsstlr_enaomn&n u(l*la bEsmlp_tnyoSntnruilnlg (m));(
s      t| d                            ^:
:os/usr/local/clang/include/absl/base/nullability.ht:r241e:a22m:&  note: oexpanded from macro 'absl_nonnull's
))  ;241
 |       #| d                                         ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   stIn file included from as2/s2builderutil_snap_functions.cct:i18c:
 In file included from c../src/s2/s2builderutil_snap_functions.ho:n23s:
tIn file included from  ../src/s2/s1angle.hs:t28d:
:In file included from :../src/s2/s2point.hs:t25r:
iIn file included from n../src/s2/util/coding/coder.hg:*36 :
aIn file included from b../src/s2/base/casts.hs:l34_:
nIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h :M22o:
v/usr/local/clang/include/absl/log/internal/log_message.he:d191F:r43o:m Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ing(  )191; | 
        | L                            ^o
gM/usr/local/clang/include/absl/base/nullability.he:s241s:a22g:e &note:  expanded from macro 'absl_nonnull'o
pe  r241a | t#odre<f<i(nset da:b:silo_sn_obnansuel&l  (_*Naobnsnlu_lnlo
n      n| u                     ^l
l m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2cell_id.ccu:l18l:
 In file included from _../src/s2/s2cell_id.hN:o43n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:18:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2cell_index.cc::25718::
23In file included from :../src/s2/s2cell_index.h :note: 26expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/container/flat_hash_set.h  :25745 | :
#d/usr/local/clang/include/absl/container/internal/raw_hash_set.he:f2663i:n53e:  awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
l_nulla b2663l | e   _ N u l lTa&b&l ev
a      l| u                      ^e
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h/usr/local/clang/include/absl/container/internal/raw_hash_set.h::232692:
:In file included from 58../src/s2/s1angle.h::28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from  ../src/s2/base/casts.h:warning: 36'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h :269237 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.hc:o293n:s49t:  Twarning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
val  u293e |   A B S L _ I N T E R N A L _ A T T R I B U T E _ C A P T U R E D _ B Y (ctohnisst) )c
h      a| r                                                         ^~~~*
 absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/container/internal/raw_hash_set.h:
:/usr/local/clang/include/absl/log/internal/check_op.h2734::29665::63 :warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   2734296 |  |                                     T & &   v a l u e   A B S L _ I N T E R N A L _ A TcToRnIsBtU TsEi_gCnAePdT UcRhEaDr_*B Ya(btshli_sn)o)n
n      u| l                                                                ^~~~l
);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2builderutil_s2polyline_vector_layer.cc25::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2builderutil_s2polyline_vector_layer.h36::
27In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/mutable_s2shape_index.h36::
44In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2pointutil.h21::
27In file included from :
/usr/local/clang/include/absl/log/check.h:../src/s2/util/math/matrix3x3.h37::
276In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h5::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.h:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]451
:1: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]276
 |  /usr/local/clang/include/absl/log/internal/check_op.h : 450 :S252:_ Cnote: Hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'E
CK  _450N | E ( d e t ,  xV,T yxp,e (c0o)n)s t< <c h"a rC*a na'bts li_nnvoenrnsuel.l )D
e      t| e                        ^r
mi/usr/local/clang/include/absl/base/nullability.hn:a241n:t22 :=  note: 0expanded from macro 'absl_nonnull'.
";  
241       | | #    ^d
efin../src/s2/base/logging.he: 37a:b21s:l _note: nexpanded from macro 'S2_CHECK_NE'o
nnu   l37l |  #_dNeofninnuel lS
2      _| C                     ^H
ECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 | In file included from  s2/s2builderutil_snap_functions.cc :A18B:
SIn file included from L../src/s2/s2builderutil_snap_functions.h_:L23O:
GIn file included from _../src/s2/s1angle.hI:N28T:
EIn file included from R../src/s2/s2point.hN:A25L:
_In file included from C../src/s2/util/coding/coder.hH:E36C:
KIn file included from _../src/s2/base/casts.hN:E36_:
IIn file included from M../src/s2/base/logging.hP:L21(:
(In file included from v/usr/local/clang/include/absl/log/check.ha:l371:
)In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :#21v:
a/usr/local/clang/include/absl/log/internal/check_op.hl:1452,: 1(:v awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]2
),   #452v | aAlB2S)L
_      L| O  ^G
_I/usr/local/clang/include/absl/log/internal/check_impl.hN:T51E:R3N:A Lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'D
EFI   N51E | _ M AAKBES_LC_HLEOCGK__IONPT_ESRTNRAILN_GC_HEEXCTKE_RONP((iCnhte6c4k__tN)E;,
       !| =^,
 v/usr/local/clang/include/absl/log/internal/check_op.ha:l4491:,31 :v anote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'1
_te  x449t | ,   veaxlt2e,r nv atle2m_ptleaxtte) 
c      o| n  ^s
t c/usr/local/clang/include/absl/log/internal/check_op.hh:a68r:*22 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'l
_no   n68n | u l lw hMialkee C(hceocnksOtp Scthrairn*g (a b s l\_
n      u| l                              ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'l
og  _241i | n#tdeerfnianle_ cahbesclk__noopn_nruelslu l_tN o n n u l l 
        |                       ^ 
\
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2builderutil_snap_functions.cc:note: 18expanded from macro 'absl_nullable':

In file included from ../src/s2/s2builderutil_snap_functions.h:  23257:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 25a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
uIn file included from l../src/s2/base/casts.hl:a36b:
lIn file included from e../src/s2/base/logging.h :_21N:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2builderutil_s2polyline_vector_layer.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2builderutil_s2polyline_vector_layer.h:27  :
241In file included from  | ../src/s2/mutable_s2shape_index.h#:d44e:
fIn file included from i../src/s2/s2pointutil.hn:e27 :
a../src/s2/util/math/matrix3x3.hb:s276l:_5n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll../src/s2/base/logging.h :_37N:o21n:n unote: lexpanded from macro 'S2_CHECK_NE'l

      |                         ^37
 | #define S2_CHECK_NE CHECK_In file included from Ns2/s2builderutil_snap_functions.ccE:
18      :
| In file included from                     ^../src/s2/s2builderutil_snap_functions.h
:23:
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s1angle.h120::283:
:In file included from  ../src/s2/s2point.h:note: 25expanded from macro 'CHECK_NE':

In file included from ../src/s2/util/coding/coder.h:36  :
120In file included from  | ../src/s2/base/casts.h : 36A:
BIn file included from S../src/s2/base/logging.hL:_21L:
OIn file included from G/usr/local/clang/include/absl/log/check.h_:I37N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.hR:N21A:
L/usr/local/clang/include/absl/log/internal/check_op.h_:C453H:E1C:K _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_IM  P453L | (A(BvSaLl_1L)O,G _#IvNaTlE1R,N A(Lv_aDlE2F)I,N E#_vMaAlK2E)_
C      H| E  ^C
K_/usr/local/clang/include/absl/log/internal/check_impl.hO:P51_:S3T:R Inote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'G
_EX   T51E | R N (AuBiSnLt_L6O4G__tI)N;T
E      R| N^A
L_/usr/local/clang/include/absl/log/internal/check_op.hC:H449E:C31K:_ Onote: Pexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'(
Che  c449k | _ N Ee,x t!e=r,n  vtaelm1p,l avtael 1c_otnesxtt ,c hvaarl*2 ,a bvsall_2n_otnenxutl)l
       M| a  ^k
eC/usr/local/clang/include/absl/log/internal/check_op.hh:e75c:k61O:p Snote: texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'r
ing   (75  |     \A
B      S| L                              ^_
LO/usr/local/clang/include/absl/base/nullability.hG:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  C241H | E#CdKe(f:i:naeb salb:s:li_mnpolnincuiltl_ c_aNsotn<ncuolnls
t       | c                     ^h
ar* absl_nonnulIn file included from ls2/s2builderutil_snap_functions.cc>:(18 :
 In file included from  ../src/s2/s2builderutil_snap_functions.h : 23\:

In file included from       ../src/s2/s1angle.h| :                                                            ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::25241:
:In file included from 22../src/s2/util/coding/coder.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/casts.h
:36:
  In file included from 241../src/s2/base/logging.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/log/check.hi:n37e:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o453n:n1u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
No/usr/local/clang/include/absl/log/internal/check_op.hn:n450u:l25l:
       | note:                      ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:28:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_id.cc:30:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline conIn file included from ss2/s2builderutil_snap_functions.cct:e18x:
pIn file included from r../src/s2/s2builderutil_snap_functions.h :c23o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29n:
aIn file included from m/usr/local/clang/include/absl/strings/cord.he:#82#:
IIn file included from m/usr/local/clang/include/absl/crc/internal/crc_cord_state.hp:l23(:
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 In file included from  /usr/local/clang/include/absl/strings/str_format.h : 84 :
  /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 143 : 11 :   warning: \'enable_if' is a clang extension [-Wgcc-compat]

      |                                ^
  /usr/local/clang/include/absl/base/nullability.h143: | 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257e | n#adbelfei_nief (asbtsrl__fnourlmlaatb_lien t_eNrunlalla:b:lEen
s      u| r                      ^e
Constexpr(In file included from ss2/s2cell_index.cc):,18 :
"In file included from c../src/s2/s2cell_index.ho:n29s:
tIn file included from e../src/s2/base/logging.hx:p21r:
 In file included from t/usr/local/clang/include/absl/log/check.hr:a37:
pIn file included from "/usr/local/clang/include/absl/log/internal/check_impl.h):,21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :          ^505
:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* /usr/local/clang/include/absl/strings/internal/str_format/bind.ha:b149s:l22_:n owarning: n'enable_if' is a clang extension [-Wgcc-compat]n
ull   e149x | p r t e x t )_ _{a t t r i b u t e _ _ ( ( e n a b l\e
_      i| f                                  ^(
st/usr/local/clang/include/absl/base/nullability.hr:_241f:o22r:m anote: texpanded from macro 'absl_nonnull'_
in  t241e | r#ndaelf:i:nEen saubrselC_onnosntneuxlplr (_sN)o,n
n      u| l                     ^l

      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2cell_index.ccd:e18f:
iIn file included from n../src/s2/s2cell_index.he: 29a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l511l:
13      :|                       ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* abIn file included from ss2/s2builderutil_snap_functions.ccl:_18n:
uIn file included from l../src/s2/s2builderutil_snap_functions.hl:a23b:
lIn file included from e../src/s2/s1angle.h :s282:
,In file included from 
../src/s2/s2point.h      :| 27                ^:

In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23257:
:In file included from 23/usr/local/clang/include/absl/status/status.h:: 67note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:  29257:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e82f:
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.he: 23a:
bIn file included from s/usr/local/clang/include/absl/crc/crc32c.hl:_32n:
u/usr/local/clang/include/absl/strings/str_format.hl:l380a:b43l:e  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
ulla  b380l | es
t      d| :                      ^:
string& StrAIn file included from ps2/s2cell_index.ccp:e18n:
dIn file included from F../src/s2/s2cell_index.ho:r29m:
aIn file included from t../src/s2/base/logging.h(:s21t:
dIn file included from :/usr/local/clang/include/absl/log/check.h::s37t:
rIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:g21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b512s:l47_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull   512d | s t , 
       c| o                                          ^n
st /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien es 1a,b sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlu
l      l| a                     ^b
le s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2cell_index.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2cell_index.h/usr/local/clang/include/absl/status/internal/status_internal.h::2929:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/cord.h::2182:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::3723:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/crc/crc32c.h::2132:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/str_format.h::514440::1324::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  514 |   c440o | nisntt  cFhParri*n taFb(sslt_dn:u:lFlIaLbEl*e  aCbhselc_knsotnrncumlplf aolustepIumtp,l (c
o      n| s            ^t
 F/usr/local/clang/include/absl/base/nullability.ho:r257m:a23t:S pnote: eexpanded from macro 'absl_nullable'c
<A  r257g | s#.d.e.f>i&n ef oarbmsalt_,n
u      l| l                       ^a
ble/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        241|  |                       ^#
defineIn file included from  s2/s2cell_index.cca:b18s:
lIn file included from _../src/s2/s2cell_index.hn:o29n:
nIn file included from u../src/s2/base/logging.hl:l21 :
_In file included from N/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullaIn file included from bs2/s2builderutil_snap_functions.ccl:e18 :
sIn file included from 2../src/s2/s2builderutil_snap_functions.h,:
23      :
| In file included from                 ^../src/s2/s1angle.h
:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2point.h::2327::
 In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nullable':
23:
  In file included from 257/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s82l:
_In file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/crc/crc32c.hl:e32 :
_/usr/local/clang/include/absl/strings/str_format.hN:u469l:l20a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                       ^
  469 | int SIn file included from Ns2/s2cell_index.ccP:r18i:
nIn file included from t../src/s2/s2cell_index.hF:(29c:
hIn file included from a../src/s2/base/logging.hr:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 515o:u47t:p uwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 st  d515: | : s i z ec_otn ssti zceh,a
r      *|                     ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   s2411 | ,# dceofnisnte  cahbasrl*_ naobnsnlu_lnlu l_lNaobnlneu lsl2
,      
|                            ^| 
                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprIn file included from ts2/s2builderutil_snap_functions.cce:x18t:
)In file included from ;../src/s2/s2builderutil_snap_functions.h
:      23| :
                ^In file included from 
../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l82_:
nIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h :_32N:
o/usr/local/clang/include/absl/strings/str_format.hn:n503u:l20l:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  503 |   FormatRIn file included from as2/s2cell_index.ccw:S18i:
nIn file included from k../src/s2/s2cell_index.h(:T29*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21r:
a/usr/local/clang/include/absl/log/internal/check_op.hw:)517 : 13/:/  warning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]O
LIN  T517
 |       c| o                   ^n
s/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  aCbhselc_knsotnrncualsle c_mNpotnrnuuelIlm
p      l| (                     ^

      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:29:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_s2polyline_vector_layer.cc:18:
In file included from ../src/s2/s2builderutil_s2polyline_vector_layer.h:28:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
In file included from /usr/local/clang/include/absl/flags/commandlineflag.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:31:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2cell_index.cc241: | 18#:
dIn file included from e../src/s2/s2cell_index.hf:i31n:
eIn file included from  ../src/s2/s2cell_id.ha:b43s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
ul/usr/local/clang/include/absl/status/status.hl:
1031      :| 42                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from  ../src/s2/s2builderutil_snap_functions.h1031: | 23i:
nIn file included from l../src/s2/s1angle.hi:n28e:
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from  ../src/s2/s2coder.hs:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:_67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:r29n:
aIn file included from l/usr/local/clang/include/absl/strings/cord.h:::94S:
tIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.ht:u31s:
R/usr/local/clang/include/absl/synchronization/mutex.he:p814*: 42a:b swarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
non  n814u | l l  CSotnadtiutsi:o:nR(ebpoToolP o(i*natbesrl(_
n      o| n                                         ^n
ull /usr/local/clang/include/absl/base/nullability.hf:u241n:c22):( Tnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbei laibtsyl__unnoknnnouwlnl) ,_
N      o| n                                         ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
289      :| 34                     ^:
 note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_index.cc:In file included from 18s2/s2builderutil_snap_functions.cc:
:In file included from 18../src/s2/s2cell_index.h:
:In file included from 31../src/s2/s2builderutil_snap_functions.h:
:In file included from 23../src/s2/s2cell_id.h:
:In file included from 43../src/s2/s1angle.h:
:In file included from 28../src/s2/s1angle.h:
:In file included from 28../src/s2/s2point.h:
:In file included from 27../src/s2/s2point.h:
:In file included from 27../src/s2/s2coder.h:
:In file included from 23../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/status/status.h:
:In file included from 1038/usr/local/clang/include/absl/status/internal/status_internal.h::3329::
 In file included from warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h: 311038:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 815 : 16s:t awarning: ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]u
s_i  n815t | e r n a l : : S t a t u sTR*e pa*b salb_snlu_lnloanbniullilt yr_eupn)k n{o
w      n|                                  ^a
rg/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :               ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
289:34  :241  | note: #expanded from macro 'absl_nullability_unknown'd
ef  i289n | e# daebfsiln_en oanbnsull_ln u_lNloanbniullilt
y      _| u                     ^n
known _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2cell_index.cc31::
18/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 830../src/s2/s2cell_index.h::3631::
 In file included from ../src/s2/s2cell_id.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]43
:
In file included from ../src/s2/s1angle.h:  28830:
 | In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.hb:o23o:
l /usr/local/clang/include/absl/status/status.h(:*1063a:b13s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu l1063l |  cfounnsct) (cTh*a ra*b salb_snlu_lnloanbniullilt yS_tuantkunsoMwens)s,a
g      e| A                                   ^s
CS/usr/local/clang/include/absl/base/nullability.ht:r289(:
34      :|              ^
note: expanded from macro 'absl_nullability_unknown'
/usr/local/clang/include/absl/base/nullability.h:241  :28922 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innuel laabbsill_intoyn_nuunlkln o_wNno n_nNuullll
_      u| n                     ^s
pecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2cell_index.cc :a18b:
sIn file included from l../src/s2/s2cell_index.h_:n32o:
nIn file included from n../src/s2/s2cell_union.hu:l29l:
 In file included from _/usr/local/clang/include/absl/flags/flag.hN:o40n:
nu/usr/local/clang/include/absl/flags/commandlineflag.hl:l163
:      56| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFroIn file included from ms2/s2builderutil_snap_functions.cc(:a18b:
sIn file included from l../src/s2/s2builderutil_snap_functions.h:::23s:
tIn file included from r../src/s2/s1angle.hi:n28g:
_In file included from v../src/s2/s2point.hi:e27w:
 In file included from v../src/s2/s2coder.ha:l23u:
eIn file included from ,/usr/local/clang/include/absl/status/status.h :s67t:
dIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h::s29t:
r/usr/local/clang/include/absl/strings/cord.hi:n982g:*39 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n982n | u l l   evroriodr )A;p
p      e| n                                                       ^d
Tree/usr/local/clang/include/absl/base/nullability.hT:o241I:n22l:i nnote: eexpanded from macro 'absl_nonnull'd
(C  o241r | d#Rdeepf*i naeb salb_snlo_nnnounlnlu ltlr e_eN,o
n      n| u                                      ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2cell_index.cc
:18:
In file included from ../src/s2/s2cell_index.h  :98432 | :
 In file included from  ../src/s2/s2cell_union.h : 29v:
oIn file included from i/usr/local/clang/include/absl/flags/flag.hd: 40A:
p/usr/local/clang/include/absl/flags/commandlineflag.hp:e193n:d27T:r ewarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
oTr  e193e | ( C ovridrRteupa*l  avbosild_ nRoenandu(lvlo itdr*e ea,b sMle_tnhoondnIudleln tdisfti)e rc omnestth o=d )0;;

            | |                                    ^                          ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2cell_index.ccs2/s2builderutil_snap_functions.cc::1818:
:
In file included from In file included from ../src/s2/s2cell_index.h../src/s2/s2builderutil_snap_functions.h::3223:
:
In file included from In file included from ../src/s2/s2cell_union.h../src/s2/s1angle.h::2928:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h../src/s2/s2point.h::4227:
:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.h../src/s2/s2coder.h::3023:
:
In file included from /usr/local/clang/include/absl/base/call_once.h/usr/local/clang/include/absl/status/status.h::5267::
24In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:1054:37:    52warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
td: :1054a | t o m i c < uaibnstl3:2:_cto>r*d _aibnstle_rnnoanln:u:lClo rCdoRnetpr*o laWbosrld_(n
o      n| n                       ^u
ll r/usr/local/clang/include/absl/base/nullability.he:p241,:
22      :|                                      ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e | # daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     abIn file included from ss2/s2builderutil_snap_functions.ccl::18::
oIn file included from n../src/s2/s2builderutil_snap_functions.hc:e23_:
fIn file included from l../src/s2/s1angle.ha:g28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67f:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hg:)29;:

/usr/local/clang/include/absl/strings/cord.h      :1061| :                     ^34
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:  note: 1061expanded from macro 'absl_nonnull' | 
    v241o | i#dd eCfoipnyeT oaAbrsrla_ynSolnonwuPlalt h_(Ncohnanru*l la
b      s| l                     ^_
nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::CIn file included from os2/s2builderutil_snap_functions.ccn:t18r:
oIn file included from l../src/s2/s2builderutil_snap_functions.hW:o23r:
dIn file included from (../src/s2/s1angle.h
:      28| :
                                ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
  In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h | :#29d:
e/usr/local/clang/include/absl/strings/cord.hf:i1078n:e33 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non n1078u | l l  a_bNsoln:n:uclolr
d      _| i                     ^n
ternal::CIn file included from os2/s2cell_index.ccr:d18R:
eIn file included from p../src/s2/s2cell_index.h*: 32a:
bIn file included from s../src/s2/s2cell_union.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/flags/flag.hn:u42l:
lIn file included from  /usr/local/clang/include/absl/flags/internal/flag.hT:a30k:
e/usr/local/clang/include/absl/base/call_once.hR:e97p:(18):  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st&   ;97
 |        |                                  ^ 
  /usr/local/clang/include/absl/base/nullability.h :o241n:c22e:_ fnote: lexpanded from macro 'absl_nonnull'a
g*   241a | b#sdle_fnionnen ualbls lf_lnaogn)n;u
l      l|                   ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull In file included from _s2/s2builderutil_snap_functions.ccN:o18n:
nIn file included from u../src/s2/s2builderutil_snap_functions.hl:l23
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2cell_index.ccn:o18n:
nIn file included from u../src/s2/s2cell_index.hl:l32 :
_In file included from N../src/s2/s2cell_union.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/flags/flag.hl:
42      :
| In file included from                      ^/usr/local/clang/include/absl/flags/internal/flag.h
:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2builderutil_snap_functions.cc| :                     ^18
:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_index.cc:18:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ContrIn file included from os2/s2builderutil_snap_functions.ccl:W18o:
rIn file included from d../src/s2/s2builderutil_snap_functions.h(:
23      :
| In file included from                        ^../src/s2/s1angle.h
:28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n1301e: 56a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nonn u1301l | li n_lNionnen uvloli
d       | C                     ^o
rd::InlineIn file included from Rs2/s2cell_union.cce:p18::
:In file included from C../src/s2/s2cell_union.ho:m29m:
iIn file included from t/usr/local/clang/include/absl/flags/flag.hT:r42e:
eIn file included from (/usr/local/clang/include/absl/flags/internal/flag.hc:o30n:
s/usr/local/clang/include/absl/base/call_once.ht: 53C:o22r:d Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
* a   b53s | l _ n u lalbasbll:e: oonlcde__rfelpa,g
*       | a                                                       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
fl  a257g | )#;d
e      f| i                     ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _NonnIn file included from us2/s2builderutil_snap_functions.ccl:l18
:
      In file included from | ../src/s2/s2builderutil_snap_functions.h                     ^:
23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
In file included from       s2/s2cell_union.cc| :                                                 ^18
:
In file included from ../src/s2/s2cell_union.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/flags/flag.h:: 42:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/flags/internal/flag.h
:30:
  241/usr/local/clang/include/absl/base/call_once.h | :#96d:e33f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl   _96n | o n nfurlile n_dN osntndu:l:la
t      o| m                     ^i
c<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2builderutil_snap_functions.ccb:s18l:
_In file included from n../src/s2/s2builderutil_snap_functions.ho:n23n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2cell_union.cc1312::1838:
:In file included from  ../src/s2/s2cell_union.h:warning: 29type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from  /usr/local/clang/include/absl/flags/internal/flag.h1312: | 30i:
n/usr/local/clang/include/absl/base/call_once.hl:i97n:e18 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::   c97o | r d _ i n t eornncael_:f:lCaogr*d Raebps*l _anbosnln_unlull lfalbalge) ;C
o      r| d                 ^:
:I/usr/local/clang/include/absl/base/nullability.hn:l241i:n22e:R enote: pexpanded from macro 'absl_nonnull':
:c  l241e | a#rd(e)f i{n
e       | a                                     ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
_N  o257n | n#udlelf
i      n| e                     ^ 
absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRepIn file included from :s2/s2cell_union.cc::C18o:
pIn file included from y../src/s2/s2cell_union.hT:o29A:
rIn file included from r/usr/local/clang/include/absl/flags/flag.ha:y42(:
cIn file included from h/usr/local/clang/include/absl/flags/internal/flag.ha:r30*:
 /usr/local/clang/include/absl/base/call_once.ha:b111s:l40_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   d111s | tv)o icdo nLsotw L{e
v      e| l                                               ^C
all/usr/local/clang/include/absl/base/nullability.hO:n241c:e22(:a bnote: sexpanded from macro 'absl_nonnull'l
::  o241n | c#ed_effliange*  aabbssll__nnoonnnnuullll  _fNloangn,u lCla
l      l| a                     ^b
le&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2cell_index.ccd:e18f:
iIn file included from n../src/s2/s2cell_index.he: 32a:
bIn file included from s../src/s2/s2cell_union.hl:_29n:
on/usr/local/clang/include/absl/flags/flag.hn:u110l:l29 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null
        | 110                     ^ | 
void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2builderutil_snap_functions.ccn:o18n:
nIn file included from u../src/s2/s2builderutil_snap_functions.hl:l23 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* aIn file included from bs2/s2cell_index.ccs:l18_:
nIn file included from o../src/s2/s2cell_index.hn:n32u:
lIn file included from l../src/s2/s2cell_union.h :t29r:
e/usr/local/clang/include/absl/flags/flag.he:)118 :{29
:       | warning:                             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  241118: | 22v:o inote: dexpanded from macro 'absl_nonnull' 
Se  t241F | l#adge(faibnsel :a:bFslla_gn<oTn>n*u lalb s_lN_onnonnunlull
l       | f                     ^l
ag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:40:
In file included from /usr/local/clang/include/absl/flags/marshalling.h:207:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
575 warnings generated.
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLoc/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2centroids.cc -o s2/s2centroids.o
k(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2cell.cc
:      18| :
                     ^In file included from 
../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from 37s2/s2builderutil_snap_functions.cc:
:In file included from 18/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2builderutil_snap_functions.h:
:In file included from 24/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 40../src/s2/s2builder.h:
:In file included from 36/usr/local/clang/include/absl/log/internal/nullstream.h:
:In file included from 37../src/s2/mutable_s2shape_index.h:
:30:
/usr/local/clang/include/absl/strings/string_view.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h53::6654:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.h:warning: 70:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23   :
53/usr/local/clang/include/absl/strings/numbers.h | :c182o:n60s:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
r st  r182i | ncgh_avri*e wa bNsull_lnSoanfneuSltlr iRnoguVnideTwr(icpoDnosutb lcehTaorB*u fafbesrl(_dnouulbllaeb lde,  pc)h a{r
*       | a                                                     ^b
sl_nonn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23b:u fnote: fexpanded from macro 'absl_nullable'e
r)  ;257
 |       #| d                                                           ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee f_iNnuel laabbslle_
n      o| n                      ^n
ull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
436 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2closest_cell_query.cc -o s2/s2closest_cell_query.o
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
380 warnings generated.
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2/s2cell.cc509: | 18 :
 In file included from  ../src/s2/s2cell.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_op.h_:A41T:
TIn file included from R/usr/local/clang/include/absl/log/internal/strip.hI:B26U:
TIn file included from E/usr/local/clang/include/absl/log/internal/log_message.h_:C47A:
PIn file included from T/usr/local/clang/include/absl/log/internal/structured_proto.hU:R27E:
DIn file included from _/usr/local/clang/include/absl/log/internal/proto.hB:Y34(:
th/usr/local/clang/include/absl/types/span.hi:s733):)31,:   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
        733  |  c o n s t e x p r   S p a\n
<      T| >                                              ^~~~ 
MakeSpa/usr/local/clang/include/absl/container/internal/btree_container.hn:(553T:*3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l52a:b lnote: eexpanded from macro 'ABSL_INTERNAL_X' 
ptr   511A | B S L _ A T T R I B UATBES_LL_IIFNETTEIRMNEA_LB_OAUTNTDR,I
B      U| T                              ^E
_CA/usr/local/clang/include/absl/base/nullability.hP:T257U:R23E:D _note: Bexpanded from macro 'absl_nullable'Y
(t  h257i | s#)d)e)f i n e   a b s l _ n u l l a b l e   _ N u l l a\b
l      e| 
                                                   ^      
|                       ^/usr/local/clang/include/absl/container/internal/common.h
:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied,In file included from  s2/s2cell.cc.:.18.:
)In file included from  ../src/s2/s2cell.hi:f24_:
sIn file included from a../src/s2/base/logging.ht:i21s:
fIn file included from i/usr/local/clang/include/absl/log/check.he:d37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h        ^:
21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47In file included from :
s2/s2builderutil_snap_functions.ccIn file included from :/usr/local/clang/include/absl/log/internal/structured_proto.h18::
27In file included from :
../src/s2/s2builderutil_snap_functions.hIn file included from :/usr/local/clang/include/absl/log/internal/proto.h24::
34In file included from :
../src/s2/s2builder.h:/usr/local/clang/include/absl/types/span.h36::
739In file included from :../src/s2/mutable_s2shape_index.h21::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553  :7393 | :S pwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
<T>   M553a | k e SApBaSnL(_TI*N TaEbRsNlA_Ln_uXl(lianbsleer tb_eogri_na sAsBiSgLn_,A TiTnRsIeBrUtT_Eo_rL_IaFsEsTiIgMnE__iBmOpUlN,D ,&
&      ,|                      ^&
&, /usr/local/clang/include/absl/base/nullability.ht:r257u:e23,:  tnote: rexpanded from macro 'absl_nullable'u
e)  ;257
 |       #| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
fin/usr/local/clang/include/absl/container/internal/btree_container.he: 511a:b47s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'u
lla  b511l | e   _ N u l l a b l eA
B      S| L                      ^_
INTERNAL_ATTIn file included from Rs2/s2cell.ccI:B18U:
TIn file included from E../src/s2/s2cell.h_:C24A:
PIn file included from T../src/s2/base/logging.hU:R21E:
DIn file included from _/usr/local/clang/include/absl/log/check.hB:Y37(:
tIn file included from h/usr/local/clang/include/absl/log/internal/check_impl.hi:s21):
)In file included from )/usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 47 :
 In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
 In file included from  /usr/local/clang/include/absl/log/internal/proto.h : 34 :
 /usr/local/clang/include/absl/types/span.h\:
740      :| 21                                              ^~~~:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, constIn file included from  s2/s2cell.cc&:,18
:
      In file included from | ../src/s2/s2cell.h  ^:
24:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/logging.h::50921::
52In file included from :/usr/local/clang/include/absl/log/check.h :37note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from   /usr/local/clang/include/absl/log/internal/check_op.h509: | 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 47A:
BIn file included from S/usr/local/clang/include/absl/log/internal/structured_proto.hL:_27I:
NIn file included from T/usr/local/clang/include/absl/log/internal/proto.hE:R34N:
A/usr/local/clang/include/absl/types/span.hL:_794A:T8T:R Iwarning: Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]U
TE_C  A794P | T U R E DT_*B Ya(btshli_sn)u)l,l a b l e   p t r   A B S L _ A T T R I B U T E _\L
I      F| E                                                   ^T
IM/usr/local/clang/include/absl/container/internal/common.hE:_32B:O9U:N Dnote: ,macro 'ABSL_INTERNAL_IF_false' defined here 
siz   e32_ | t# dseifzien)e  nAoBeSxLc_eIpNtT E{R
N      A| L       ^_
IF_/usr/local/clang/include/absl/base/nullability.hf:a257l:s23e:( inote: fexpanded from macro 'absl_nullable'_
sa  t257i | s#fdieefdi,n e. .a.b)s l___nVuAl_lAaRbGlSe_ __
N      u| l        ^l
able
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNALIn file included from _s2/s2cell.ccX:(18i:
nIn file included from s../src/s2/s2cell.he:r24t:
_In file included from o../src/s2/base/logging.hr:_21a:
sIn file included from s/usr/local/clang/include/absl/log/check.hi:g37n:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hi:n21s:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_op.ht:_41o:
rIn file included from _/usr/local/clang/include/absl/log/internal/strip.ha:s26s:
iIn file included from g/usr/local/clang/include/absl/log/internal/log_message.hn:_47h:
iIn file included from n/usr/local/clang/include/absl/log/internal/structured_proto.ht:_27i:
mIn file included from p/usr/local/clang/include/absl/log/internal/proto.hl:,34 :
c/usr/local/clang/include/absl/types/span.ho:n799s:t32 :& ,warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|   ^
  799/usr/local/clang/include/absl/container/internal/btree_container.h | :S511p:a52n:< cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
st   T511> |   M a k e C o n s t SApBaSnL(_TI*N TaEbRsNlA_Ln_uAlTlTaRbIlBeU TbEe_gCiAnP
T      U| R                               ^E
D_/usr/local/clang/include/absl/base/nullability.hB:Y257(:t23h:i snote: )expanded from macro 'absl_nullable')
)    257  |  # d e f i n e   a b s l _ n u l l a b l e\ 
_      N| u                                                   ^l
la/usr/local/clang/include/absl/container/internal/common.hb:l32e:
9      :|                        ^note: 
macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #definIn file included from es2/s2cell.cc :A18B:
SIn file included from L../src/s2/s2cell.h_:I24N:
TIn file included from E../src/s2/base/logging.hR:N21A:
LIn file included from _/usr/local/clang/include/absl/log/check.hI:F37_:
fIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hl:s21e:
(In file included from i/usr/local/clang/include/absl/log/internal/check_op.hf:_41s:
aIn file included from t/usr/local/clang/include/absl/log/internal/strip.hi:s26f:
iIn file included from e/usr/local/clang/include/absl/log/internal/log_message.hd:,47 :
.In file included from ./usr/local/clang/include/absl/log/internal/structured_proto.h.:)27 :
_In file included from _/usr/local/clang/include/absl/log/internal/proto.hV:A34_:
A/usr/local/clang/include/absl/types/span.hR:G801S:_32_:
       | warning:         ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2closest_edge_query.cc -o s2/s2closest_edge_query.o
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KIn file included from Qs2/s2cell_union.ccu:a18l:
,In file included from  ../src/s2/s2cell_union.hK:V30a:
lIn file included from u/usr/local/clang/include/absl/hash/hash.he:,89 :
.In file included from ./usr/local/clang/include/absl/hash/internal/hash.h.:)79 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h : 26 :
  /usr/local/clang/include/absl/base/internal/unaligned_access.h : 39 : 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        39\ | 
i      n| l        ^i
ne uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 | In file included from  s2/s2cell_union.cc : 18 :
 In file included from  ../src/s2/s2cell_union.h : 30 :
 In file included from A/usr/local/clang/include/absl/hash/hash.hB:S89L:
_In file included from I/usr/local/clang/include/absl/hash/internal/hash.hN:T79E:
RIn file included from N/usr/local/clang/include/absl/base/internal/endian.hA:L26_:
A/usr/local/clang/include/absl/base/internal/unaligned_access.hT:T45R:I45B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
CAPT   U45R | EiDn_lBiYn(et huiisn)t)3,2 _ t   U n a l i g n e d L o a d 3 2 ( c o n s t   v\o
i      d| *                                                   ^ 
ab/usr/local/clang/include/absl/container/internal/common.hs:l31_:n9o:n nnote: umacro 'ABSL_INTERNAL_IF_true' defined herel
l p   )31  | {#
d      e| f                                            ^i
ne /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  AL_241I | F#_dterfuien(ei fa_bssalt_insofnineudl,l  ._.N.o)n niufl_ls
a      t| i                     ^s
fied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emIn file included from ps2/s2cell_union.ccl:a18c:
eIn file included from ,../src/s2/s2cell_union.h :t30r:
yIn file included from _/usr/local/clang/include/absl/hash/hash.he:m89p:
lIn file included from a/usr/local/clang/include/absl/hash/internal/hash.hc:e79_:
iIn file included from m/usr/local/clang/include/absl/base/internal/endian.hp:l26,:
 /usr/local/clang/include/absl/base/internal/unaligned_access.hc:o51n:s45t:  &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
true   )51; | 
i      n| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
ne /usr/local/clang/include/absl/container/internal/btree_container.hu:i611n:t476:4 _note: texpanded from macro 'ABSL_INTERNAL_X' 
Unal  i611g | n e d L o a d 6 4 ( cAoBnSsLt_ IvNoTiEdR*N AaLb_sAlT_TnRoInBnUuTlEl_ CpA)P T{U
R      E| D                                            ^_
BY/usr/local/clang/include/absl/base/nullability.h(:t241h:i22s:) )note: ,expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l  \_
N      o| n                                              ^~~~n
ull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:/usr/local/clang/include/absl/container/internal/btree_container.h79::
620In file included from :/usr/local/clang/include/absl/base/internal/endian.h59::26 :
warning: /usr/local/clang/include/absl/base/internal/unaligned_access.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
57:36:   620warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 ABS   L57_ | IiNnTlEiRnNeA Lv_oXi(dt rUyn_aelmipglnaecdeS,t otrrey1_6e(mvpoliadc*e _aibmspll_,n o&n&n,u lfla lps,e )u;i
n      t| 1                                                          ^6
_t/usr/local/clang/include/absl/container/internal/btree_container.h :v596): 9{:
       | note:                                    ^macro 'ABSL_INTERNAL_X' defined here

/usr/local/clang/include/absl/base/nullability.h:  241596: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(oFnunnucl,l  C_aNlolneneu,l lK
Q      u| a                     ^l
, KValue, ...)                      \
      |         ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 620                                   ^:
3: /usr/local/clang/include/absl/base/nullability.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
:22:   note: 620expanded from macro 'absl_nonnull' | 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lX_(ntornyn_uelmlp l_aNcoen,n utlrly
_      e| m                     ^p
lace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INIn file included from Ts2/s2cell_union.ccE:R18N:
AIn file included from L../src/s2/s2cell_union.h_:A30T:
TIn file included from R/usr/local/clang/include/absl/hash/hash.hI:B89U:
TIn file included from E/usr/local/clang/include/absl/hash/internal/hash.h_:C79A:
PIn file included from T/usr/local/clang/include/absl/base/internal/endian.hU:R26E:
D/usr/local/clang/include/absl/base/internal/unaligned_access.h_:B65Y:(36t:h iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
),      65  |  i n l i n e   v o i d   U n a l i g n e d S\t
o      r| e                                                   ^6
4(/usr/local/clang/include/absl/container/internal/common.hv:o32i:d9*:  anote: bmacro 'ABSL_INTERNAL_IF_false' defined heres
l_n   o32n | n#udlelf ipn,e  uAiBnStL6_4I_NtT EvR)N A{L
_      I| F                                   ^_
fa/usr/local/clang/include/absl/base/nullability.hl:s241e:(22i:f _note: sexpanded from macro 'absl_nonnull'a
ti  s241f | i#edde,f i.n.e. )a b_s_lV_An_oAnRnGuSl_l_ 
_      N| o        ^n
null
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, consIn file included from ts2/s2cell_union.cc :&18,:
 In file included from t../src/s2/s2cell_union.hr:u30e:
,In file included from 
/usr/local/clang/include/absl/hash/hash.h      :| 89  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79  :
625 | /usr/local/clang/include/absl/base/internal/endian.h : 160 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       160  |  i n lcionnes tu_iintte1r6a_tto rL(ohaidn1t6)( cAoBnSsLt_ IvNoTiEdR*N AaLb_sClO_MnMoAn)n;u
l      l|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~p
) {/usr/local/clang/include/absl/container/internal/btree_container.h
:      611| :                                   ^47
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X':
241:22:   611note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f iAnBeS La_bIsNlT_EnRoNnAnLu_lAlT T_RNIoBnUnTuEl_lC
A      P| T                     ^U
RED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inlin/usr/local/clang/include/absl/container/internal/btree_container.he: 626u:i3n:t 3warning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
t Lo  a626d | 3 2 (AcBoSnLs_tI NvToEiRdN*A La_bXs(lt_rnyo_nenmupllla cpe),  {t
r      y| _                                   ^e
mp/usr/local/clang/include/absl/base/nullability.hl:a241c:e22_:h inote: nexpanded from macro 'absl_nonnull't
_i  m241p | l#,d e&f&i,n ef aalbssel,_
n      o| n  ^n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl: 611_:N52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l
      |                        ^611
 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thiIn file included from ss2/s2cell_union.cc):)18,:
 In file included from  ../src/s2/s2cell_union.h : 30 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 172 : 27 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 \
        | 172                                                   ^ | 
in/usr/local/clang/include/absl/container/internal/common.hl:i32n:e9 :v onote: imacro 'ABSL_INTERNAL_IF_false' defined hered
 St   o32r | e#3d2e(fvionied *A BaSbLs_lI_NnToEnRnNuAlLl_ IpF,_ fuailnste3(2i_ft_ sva)t i{s
f      i| e                          ^d
, /usr/local/clang/include/absl/base/nullability.h.:.241.:)22 :_ _note: Vexpanded from macro 'absl_nonnull'A
_A  R241G | S#_d_e
f      i| n        ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2builderutil_snap_functions.ccd:e18f:
iIn file included from n../src/s2/s2builderutil_snap_functions.he: 24a:
bIn file included from s../src/s2/s2builder.hl:_36n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u628l:l3
:       | warning:                      ^
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hintIn file included from _s2/s2cell_union.cci:m18p:
lIn file included from ,../src/s2/s2cell_union.h :&30&:
,In file included from  /usr/local/clang/include/absl/hash/hash.ht:r89u:
eIn file included from ,/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
  ^
/usr/local/clang/include/absl/base/internal/endian.h:180/usr/local/clang/include/absl/container/internal/btree_container.h::27611:: 52:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_INTERNAL_X'
  180   | 611i | n l i n e   v o i d  ASBtSoLr_eI6N4T(EvRoNiAdL*_ AaTbTsRlI_BnUoTnEn_uClAlP TpU,R EuDi_nBtY6(4t_hti sv))) ,{ 
        |                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                                                   ^s
l_/usr/local/clang/include/absl/container/internal/common.hn:o31n:n9u:l lnote:  macro 'ABSL_INTERNAL_IF_true' defined here_
Non   n31u | l#ld
e      f| i                     ^n
e ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:30:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2builderutil_snap_functions.cc:18:
In file included from ../src/s2/s2builderutil_snap_functions.h:24:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2closest_point_query.cc -o s2/s2closest_point_query.o
693 warnings generated.
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2contains_vertex_query.cc -o s2/s2contains_vertex_query.o
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
575   warning241s |  generated#.
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2convex_hull_query.cc -o s2/s2convex_hull_query.o
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absIn file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497l:_32n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
bili  t497y | _ u niknnloiwnne  _cNounlslt_euxnpsrp eccoinfsite dc
h      a| r                                 ^*
 absl_nullable name#In file included from #s2/s2cell_union.ccI:m18p:
lIn file included from (../src/s2/s2cell_union.h : 35 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from \/usr/local/clang/include/absl/log/internal/check_op.h
:      41| :
                               ^In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/log_message.h257::4723:
:In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h:note: 27expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/internal/proto.h:  34257:
 | /usr/local/clang/include/absl/types/span.h#:d213e:f34i:n ewarning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
bsl  _213n | u l luasbilneg  _cNounlslta_bploei
n      t| e                      ^r
 = const In file included from Ts2/s2cell.cc*: 18a:
bIn file included from s../src/s2/s2cell.hl:_24n:
uIn file included from l../src/s2/base/logging.hl:a21b:
iIn file included from l/usr/local/clang/include/absl/log/check.hi:t37y:
_In file included from u/usr/local/clang/include/absl/log/internal/check_impl.hn:k21n:
o/usr/local/clang/include/absl/log/internal/check_op.hw:n506;:
1      :|                                   ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::289498::3435::  note: note: expanded from macro 'absl_nullability_unknown'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  289   | 498# | d e f i n e  ianbts lv_1n,u lilnatb ivl2i,t yc_ounnsktn ocwhna r_*N ualbls_lu_nnsopnencuilfli eedx
p      r| t                                 ^e
xt) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2cell_union.cc | :#18d:
eIn file included from f../src/s2/s2cell_union.hi:n35e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.h
:      26| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733In file included from :s2/s2cell.cc31::18 :
In file included from warning: ../src/s2/s2cell.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
24:
In file included from ../src/s2/base/logging.h:21:
  In file included from 733/usr/local/clang/include/absl/log/check.h | :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:e21x:
p/usr/local/clang/include/absl/log/internal/check_op.hr: 517S:p13a:n <warning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]>
 Ma  k517e | Scpoanns(tT *c haabrs*l _anbuslll_anbullel apbtlre  ACBhSeLc_kAsTtTrRcIaBsUeTcEm_pLtIrFuEeTIImMpEl_(B
O      U| N            ^D
,
/usr/local/clang/include/absl/base/nullability.h      :| 257                              ^:
23: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nullable':
257:23  :257  | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en ualblsalb_lneu l_lNaublllea b_lNeu
l      l| a                      ^b
le
      | In file included from                       ^s2/s2cell.cc
:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1,In file included from  s2/s2cell_union.ccc:o18n:
sIn file included from t../src/s2/s2cell_union.h :c35h:
aIn file included from r../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_op.h :s412:
,In file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26                ^:

In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/base/nullability.h::47257:
:In file included from 23/usr/local/clang/include/absl/log/internal/structured_proto.h:: 27:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/proto.h
:34:
  257/usr/local/clang/include/absl/types/span.h | :#739d:e21f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl  _739n | uSlplaanb<lTe>  _MNauklelSapbalne(
T      *|                        ^a
bsl_nuIn file included from ls2/s2cell.ccl:a18b:
lIn file included from e../src/s2/s2cell.h :b24e:
gIn file included from i../src/s2/base/logging.hn: 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37A:
TIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hR:I21B:
U/usr/local/clang/include/absl/log/internal/check_op.hT:E518_:L47I:F Ewarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
ME_  B518O | U N D , 
c      o| n                    ^s
t /usr/local/clang/include/absl/base/nullability.hc:h257a:r23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257u | l#ldaebflien es 1a,b sclo_nnsutl lcahbalre*  _aNbuslll_anbullel
a      b| l                      ^e
 s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23In file included from :s2/s2cell_union.cc :18note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2cell_union.h:35  :
257In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41a:
bIn file included from l/usr/local/clang/include/absl/log/internal/strip.he: 26_:
NIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hl:l47a:
bIn file included from l/usr/local/clang/include/absl/log/internal/structured_proto.he:
27      :
| In file included from                       ^/usr/local/clang/include/absl/log/internal/proto.h
:34:
/usr/local/clang/include/absl/types/span.h:740In file included from :s2/s2cell.cc21::18 :
In file included from warning: ../src/s2/s2cell.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
24:
In file included from ../src/s2/base/logging.h  :74021 | :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 519 : 17 :  Twarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab  s519l | _ n u l lcaobnlset  ecnhda)r *n oaebxscle_pnto n{n
u      l| l                    ^ 
ex/usr/local/clang/include/absl/base/nullability.hp:r257t:e23x:t )note: ;expanded from macro 'absl_nullable'

      |                   ^257
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from In file included from ../src/s2/s2cell.hs2/s2cell_union.cc::2518:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2cell_union.h::4035:
:
In file included from In file included from ../src/s2/util/coding/varint.h../src/s2/base/logging.h::4421:
:
In file included from In file included from ../src/s2/util/bits/bits.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from In file included from /usr/local/clang/include/absl/numeric/bits.h/usr/local/clang/include/absl/log/internal/check_impl.h::5221:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/log/internal/check_op.h::2641:
:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h/usr/local/clang/include/absl/log/internal/strip.h::5126::
45:/usr/local/clang/include/absl/log/internal/log_message.h :319warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]20
: warning:    type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]51
 | inl  i319n | e   u i ncto6n4s_tt  wUcnhaalri_gtn*e daLbosald_6n4u(lcloanbslte  vcooinds*t &a bvs)l;_
n      o| n                   ^n
ull/usr/local/clang/include/absl/base/nullability.h :p257): 23{:
       | note:                                             ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea balbes l__Nnuolnlnaubllle 
_      N| o                      ^n
null
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:In file included from 26s2/s2cell.cc:
:18/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 321../src/s2/s2cell.h::5225::
 In file included from ../src/s2/util/coding/coder.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]40
:
In file included from ../src/s2/util/coding/varint.h:44  :
321In file included from  | ../src/s2/util/bits/bits.hi:n21l:
iIn file included from n/usr/local/clang/include/absl/numeric/bits.he: 52L:
oIn file included from g/usr/local/clang/include/absl/base/internal/endian.hM:e26s:
s/usr/local/clang/include/absl/base/internal/unaligned_access.ha:g57e:&36 :L owarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
essa   g57e | :i:nolpienrea tvoori<d< (Uwncahlairg_nte*d Satbosrle_1n6u(lvloaibdl*e  avb)s l{_
n      o| n                                                   ^n
ull/usr/local/clang/include/absl/base/nullability.h :p257,: 23u:i nnote: texpanded from macro 'absl_nullable'1
6_  t257  | v#)d e{f
i      n| e                                   ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241_ | N#udlelfaibnlee 
a      b| s                      ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, In file included from us2/s2cell_union.cci:n18t:
3In file included from 2../src/s2/s2cell_union.h_:t35 :
vIn file included from )../src/s2/base/logging.h :{21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                   ^:
37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22In file included from :/usr/local/clang/include/absl/log/internal/check_op.h :41note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26  :
241 | /usr/local/clang/include/absl/log/internal/log_message.h#:d340e:f46i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n340o | n n uflrli e_nNdo nvnouildl 
A      b| s                     ^l
FormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2cell.cc241: | 18#:
dIn file included from e../src/s2/s2cell.hf:i25n:
eIn file included from  ../src/s2/util/coding/coder.ha:b40s:
lIn file included from _../src/s2/util/coding/varint.hn:o44n:
nIn file included from u../src/s2/util/bits/bits.hl:l21 :
_In file included from N/usr/local/clang/include/absl/numeric/bits.ho:n52n:
uIn file included from l/usr/local/clang/include/absl/base/internal/endian.hl:
26      :
| /usr/local/clang/include/absl/base/internal/unaligned_access.h                     ^:
65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26In file included from :
s2/s2cell.cc:/usr/local/clang/include/absl/log/internal/log_message.h18::
436In file included from :../src/s2/s2cell.h36::25 :
In file included from warning: ../src/s2/util/coding/coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
40:
In file included from ../src/s2/util/coding/varint.h:  44436:
 | In file included from  ../src/s2/util/bits/bits.h :L21o:
gIn file included from M/usr/local/clang/include/absl/numeric/bits.he:s52s:
ag/usr/local/clang/include/absl/base/internal/endian.he:D160e:b36u:g Fwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
al(c  o160n | sitn lcihnaer *u ianbts1l6__nto nLnoualdl1 6f(icloen,s
t       | v                                   ^o
id/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dpe)f i{n
e       | a                                   ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:In file included from 21s2/s2cell.cc:
:In file included from 18/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2cell.h:
:In file included from 25/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/util/coding/coder.h:
:In file included from 40/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41../src/s2/util/coding/varint.h:
:In file included from 44/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26../src/s2/util/bits/bits.h:
:21/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 446/usr/local/clang/include/absl/numeric/bits.h::4352::
 /usr/local/clang/include/absl/base/internal/endian.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]164
:27:   warning: 446type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  L  o164g | Mienslsiangee Qvuoiiedt lSytDoerbeu1g6F(avtoaild(*c oanbsstl _cnhoanrn*u lalb spl,_ nuoinnntu1l6l_ tf ivl)e ,{

            | |                                           ^                          ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.hIn file included from :s2/s2cell_union.cc25::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2cell_union.h40::
35In file included from :
../src/s2/util/coding/varint.hIn file included from :../src/s2/base/logging.h44::
21In file included from :
../src/s2/util/bits/bits.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37In file included from :
/usr/local/clang/include/absl/numeric/bits.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h52::
21:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h168::4136:
:In file included from  /usr/local/clang/include/absl/log/internal/strip.h:warning: 26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/log/internal/log_message.h:454:  38168: |  iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ine   454u | i n tL3o2g_Mte sLsoaagde3Q2u(iceotnlsytF avtoaild(*c oanbsstl _cnhoanrn*u lalb spl)_ n{o
n      n| u                                   ^l
l /usr/local/clang/include/absl/base/nullability.hf:i241l:e22,:
       | note:                                      ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2cell.cc/usr/local/clang/include/absl/log/check.h::1837:
:
In file included from In file included from ../src/s2/s2cell.h/usr/local/clang/include/absl/log/internal/check_impl.h::2521:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/log/internal/check_op.h::4041:
:
In file included from In file included from ../src/s2/util/coding/varint.h/usr/local/clang/include/absl/log/internal/strip.h::4426:
:
In file included from ../src/s2/util/bits/bits.h/usr/local/clang/include/absl/log/internal/log_message.h::21456:
:In file included from 38/usr/local/clang/include/absl/numeric/bits.h:: 52:
warning: /usr/local/clang/include/absl/base/internal/endian.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
172:27:   456warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 Lo  g172M | eisnslaigneeQ uvioeitdl ySFtaotrael3(2c(ovnositd *c haabrs*l _anbosnln_unloln npu,l lu ifnitl3e2,_ ti nvt)  l{i
n      e| ,                          ^

      |                                      ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |             In file included from  s2/s2cell.cc : 18 :
 In file included from  ../src/s2/s2cell.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 40c:
oIn file included from n../src/s2/util/coding/varint.hs:t44 :
cIn file included from h../src/s2/util/bits/bits.ha:r21*:
 In file included from a/usr/local/clang/include/absl/numeric/bits.hb:s52l:
_/usr/local/clang/include/absl/base/internal/endian.hn:o176n:n36u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ail  u176r | ei_nmlsign)e
       u| i                                     ^n
t6/usr/local/clang/include/absl/base/nullability.h4:_241t: 22L:o anote: dexpanded from macro 'absl_nonnull'6
4(  c241o | n#sdte fvionied *a basbls_ln_onnonnunlull l_ Npo)n n{u
l      l| 
                                   ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2cell.ccu:l18l:

In file included from       ../src/s2/s2cell.h| :                     ^25
:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t LoaIn file included from ds2/s2cell_union.cc1:618(:
cIn file included from o../src/s2/s2cell_union.hn:s35t:
 In file included from v../src/s2/base/logging.ho:i21d:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l202l: 46p:)  warning: {type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                    ^
  202 | /usr/local/clang/include/absl/base/nullability.h : 241e:x22p:l inote: cexpanded from macro 'absl_nonnull'i
t   C241h | e#cdkeOfpiMnees saabgselB_uniolndneurl(lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2cell.ccl:_18n:
oIn file included from n../src/s2/s2cell.hn:u25l:
lIn file included from  ../src/s2/util/coding/coder.h_:N40o:
nIn file included from n../src/s2/util/coding/varint.hu:l44l:

In file included from       ../src/s2/util/bits/bits.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnulIn file included from ls2/s2cell_union.cc :p18,:
 In file included from u../src/s2/s2cell_union.hi:n35t:
1In file included from 6../src/s2/base/logging.h_:t21 :
vIn file included from )/usr/local/clang/include/absl/log/check.h :{37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                          ^:
21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241209::2215::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241   | 209# | d e fcionnes ta bcshla_rn*o nanbuslll_ n_oNnonnunlull lN
e      w| S                     ^t
ring();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2cell.cc:  18226:
 | In file included from v../src/s2/s2cell.ho:i25d:
 In file included from M../src/s2/util/coding/coder.ha:k40e:
CIn file included from h../src/s2/util/coding/varint.he:c44k:
OIn file included from p../src/s2/util/bits/bits.hV:a21l:
uIn file included from e/usr/local/clang/include/absl/numeric/bits.hS:t52r:
i/usr/local/clang/include/absl/base/internal/endian.hn:g262(:s27t:d :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
str  e262a | mi&n loisn,e  cvoonisdt  Svtooirde*3 2a(bvsoli_dn*u lalbasbll_en opn)n;u
l      l|                                                            ^p
, u/usr/local/clang/include/absl/base/nullability.hi:n257t:3232:_ tnote:  expanded from macro 'absl_nullable'v
)   {257
 |       #| d                          ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee f_iNnuel laabbslle_
n      o| n                      ^n
ull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* abslIn file included from _s2/s2cell.ccn:u18l:
lIn file included from a../src/s2/s2cell.hb:l25e:
 In file included from o../src/s2/util/coding/coder.hp:e40r:
aIn file included from t../src/s2/util/coding/varint.ho:r44<:
<In file included from (../src/s2/util/bits/bits.hs:t21d:
:In file included from :/usr/local/clang/include/absl/numeric/bits.ho:s52t:
r/usr/local/clang/include/absl/base/internal/endian.he:a270m:&27,:
       | warning:             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  257270: | 23i:n lnote: iexpanded from macro 'absl_nullable'n
e   v257o | i#dd eSftionree 6a4b(svlo_indu*l laabbslle_ n_oNnunlullalb lpe,
       u| i                      ^n
t64_t v) {
In file included from       s2/s2cell_union.cc| :                          ^18
:
In file included from ../src/s2/s2cell_union.h/usr/local/clang/include/absl/base/nullability.h::35241:
:In file included from 22../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i277n:e50 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_non  n277u | l l   _ N o n n u l l 
        |                       ^ 
                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:35:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
381 warnings generated.
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2coords.cc -o s2/s2coords.o
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:18:
In file included from ../src/s2/s2cell_union.h:37:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2crossing_edge_query.cc -o s2/s2crossing_edge_query.o
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:28:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell_union.cc:34:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell_union.cc:34:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/s2cell_union.cc:48:1: warning: '__COUNTER__' is a C2y extension [-Wc2y-extensions]
   48 | S2_DEFINE_int32(s2cell_union_decode_max_num_cells, 1000000,
      | ^
../src/s2/base/commandlineflags.h:33:3: note: expanded from macro 'S2_DEFINE_int32'
   33 |   ABSL_FLAG(int32, name, default_value, description)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:170:3: note: expanded from macro 'ABSL_FLAG'
  170 |   ABSL_FLAG_IMPL(Type, name, default_value, help)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:272:3: note: expanded from macro 'ABSL_FLAG_IMPL'
  272 |   ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help)                     \
      |   ^
/usr/local/clang/include/absl/flags/flag.h:250:44: note: expanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'
  250 |   constexpr auto FLAGS_help_storage_##name ABSL_INTERNAL_UNIQUE_SMALL_NAME() \
      |                                            ^
/usr/local/clang/include/absl/base/optimization.h:306:46: note: expanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'
  306 |   asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__))
      |                                              ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2debug.cc -o s2/s2debug.o
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:In file included from 655s2/s2closest_point_query.cc::3918::
 In file included from ../src/s2/s2closest_point_query.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/base/logging.h:21  :
655In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from e/usr/local/clang/include/absl/log/internal/check_impl.hx:p21l:
iIn file included from c/usr/local/clang/include/absl/log/internal/check_op.hi:t40 :
CIn file included from h/usr/local/clang/include/absl/log/internal/nullstream.ha:r37I:
te/usr/local/clang/include/absl/strings/string_view.hr:a53t:o54r:( cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
st Cord*    a53b | sclo_nnsotnenxuplrl  sctorridn)g
_      v| i                                      ^e
w /usr/local/clang/include/absl/base/nullability.hN:u241l:l22S:a fnote: eexpanded from macro 'absl_nonnull'S
tri  n241g | V#ideewf(icnoen satb sclh_anro*n naublsll __nNuolnlnaubllle
       p| )                     ^ 
{
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _In file included from Ns2/s2cell.ccu:l18l:
aIn file included from b../src/s2/s2cell.hl:e28
:
      In file included from | ../src/s2/s1chord_angle.h                      ^:
29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:18:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h   :5321 | :
cIn file included from o/usr/local/clang/include/absl/log/check.hn:s37t:
eIn file included from x/usr/local/clang/include/absl/log/internal/check_impl.hp:r21 :
sIn file included from t/usr/local/clang/include/absl/log/internal/check_op.hr:i41n:
gIn file included from _/usr/local/clang/include/absl/log/internal/strip.hv:i26e:
wIn file included from  /usr/local/clang/include/absl/log/internal/log_message.hN:u47l:
lIn file included from S/usr/local/clang/include/absl/log/internal/structured_proto.ha:f27e:
SIn file included from t/usr/local/clang/include/absl/log/internal/proto.hr:i34n:
g/usr/local/clang/include/absl/types/span.hV:i794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
ew(co  n794s | t   c h aTr**  aabbssll__nnuullllaabbllee  ppt)r  {A
B      S| L                                                     ^_
ATTRIBU/usr/local/clang/include/absl/base/nullability.hT:E257_:L23I:F Enote: Texpanded from macro 'absl_nullable'I
ME  _257B | O#UdNeDf,i nsei zaeb_stl _sniuzlel)a bnloee x_cNeupltl a{b
l      e| 
       ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2cell.cc:36:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | con
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
st absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2closest_edge_query.cc:: 18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2closest_edge_query.h:26  :
241In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hne: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from  /usr/local/clang/include/absl/log/internal/strip.h_:N26o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hu:l47l:

In file included from       /usr/local/clang/include/absl/log/internal/structured_proto.h| :                     ^27
:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullableIn file included from  s2/s2centroids.ccp:t18r:
 In file included from A../src/s2/s2centroids.hB:S50L:
_In file included from A../src/s2/s2point.hT:T24R:
IIn file included from B/usr/local/clang/include/absl/hash/hash.hU:T89E:
_In file included from L/usr/local/clang/include/absl/hash/internal/hash.hI:F79E:
T/usr/local/clang/include/absl/base/internal/endian.hI:M254E:_27B:O Uwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]D
,
      |                                 ^254
 | in/usr/local/clang/include/absl/base/nullability.hl:i257n:e23 :v onote: iexpanded from macro 'absl_nullable'd
 S  t257o | r#ed1e6f(ivnoei da*bsl_ naublslla_bnloen n_uNlull lpa,b luei
n      t| 1                      ^6
_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2closest_edge_query.ccl:
18      :
| In file included from                      ^../src/s2/s2closest_edge_query.h
:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpIn file included from as2/s2centroids.ccn:(18T:
*In file included from  ../src/s2/s2centroids.ha:b50s:
lIn file included from _../src/s2/s2point.hn:u24l:
lIn file included from a/usr/local/clang/include/absl/hash/hash.hb:l89e:
 In file included from b/usr/local/clang/include/absl/hash/internal/hash.he:g79i:
n/usr/local/clang/include/absl/base/internal/endian.h :A258B:S36L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIB  U258T | Ei_nLlIiFnEeT IuMiEn_tB3O2U_NtD ,L
o      a| d                    ^3
2(/usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  vnote: oexpanded from macro 'absl_nullable'i
d*   257a | b#sdle_fnionnen ualbls lp_)n u{l
l      a| b                                   ^l
e /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e

        | 241                      ^ | 
#define absIn file included from ls2/s2closest_edge_query.cc_:n18o:
nIn file included from n../src/s2/s2closest_edge_query.hu:l26l:
 In file included from _../src/s2/base/logging.hN:o21n:
In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                 In file included from  s2/s2centroids.ccT:*18 :
aIn file included from b../src/s2/s2centroids.hs:l50_:
nIn file included from u../src/s2/s2point.hl:l24a:
bIn file included from l/usr/local/clang/include/absl/hash/hash.he: 89e:
nIn file included from d/usr/local/clang/include/absl/hash/internal/hash.h): 79n:
o/usr/local/clang/include/absl/base/internal/endian.he:x262c:e27p:t  warning: {type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                     ^
  262 | /usr/local/clang/include/absl/base/nullability.hi:n257l:i23n:e  note: vexpanded from macro 'absl_nullable'o
id   257S | t#odreef3i2n(ev oaibds*l _anbuslll_anbolnen u_lNlu lpl,a bulien
t      3| 2                      ^_
t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
In file included from /usr/local/clang/include/absl/types/span.hs2/s2centroids.cc::79418::
8In file included from :../src/s2/s2centroids.h :warning: 50type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:24:
In file included from   /usr/local/clang/include/absl/hash/hash.h794: | 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h :T79*:
 /usr/local/clang/include/absl/base/internal/endian.ha:b270s:l27_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abl  e270  | pitnrl iAnBeS Lv_oAiTdT RSItBoUrTeE6_4L(IvFoEiTdI*M Ea_bBsOlU_NnDo,n nsuilzle _pt,  suiiznet)6 4n_ote xvc)e p{t
       {| 
                          ^      
|        ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::257 :note: 23expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nullable'241
 | #  d257e | f#idneef ianbes la_bnsoln_nnuullll a_bNloen n_uNlull
l      a| b                     ^l
e
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
null
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.hs2/s2closest_point_query.cc::6318:
:
/usr/local/clang/include/absl/log/internal/vlog_config.hIn file included from :../src/s2/s2closest_point_query.h158::2515:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:  37158:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
VIn file included from L/usr/local/clang/include/absl/log/internal/check_op.ho:g41S:
iIn file included from t/usr/local/clang/include/absl/log/internal/strip.he:*26 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_message.hs:l53_:
nu/usr/local/clang/include/absl/types/source_location.h:113:l19l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 v);  
113       | |                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257c:o23n:s tnote:  expanded from macro 'absl_nullable'c
ha  r257* |  #adbesfli_nneo nanbuslll_ nfuilllea_bnlaem e_ N=u l_l_abbuliel
t      i| n                      ^_
FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char*In file included from  s2/s2closest_edge_query.cca:b18s:
lIn file included from _../src/s2/s2closest_edge_query.hn:u26l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from n/usr/local/clang/include/absl/log/check.ha:m37e:
#In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hI:m21p:
lIn file included from (/usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 53 :
  /usr/local/clang/include/absl/types/source_location.h : 113 : 19\:
       | warning:                                ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23:   note: 113expanded from macro 'absl_nullable' | 
     257  |  # dceofnisnte  cahbasrl*_ naublslla_bnloen n_uNlull lfaibllee_
n      a| m                      ^e
 = __builIn file included from ts2/s2closest_point_query.cci:n18_:
FIn file included from I../src/s2/s2closest_point_query.hL:E25(:
)In file included from )../src/s2/base/logging.h :{21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                  ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241/usr/local/clang/include/absl/log/internal/check_op.h::22502:: 1:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 498#:d35e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 ab  s498l | _ n o n n u liln t_ Nvo1n,n uilnlt
       v| 2                     ^,
 const char* absl_nonnull exprtext) {         In file included from  s2/s2closest_edge_query.cc : 18 :
 In file included from  ../src/s2/s2closest_edge_query.h : 26\:

In file included from       ../src/s2/base/logging.h| :                                  ^21
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_op.h  :24141 | :
#In file included from d/usr/local/clang/include/absl/log/internal/strip.he:f26i:
nIn file included from e/usr/local/clang/include/absl/log/internal/log_message.h :a53b:
s/usr/local/clang/include/absl/types/source_location.hl:_133n:o25n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o133n | n u lclo
n      s| t                     ^e
xpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(coIn file included from ns2/s2closest_edge_query.ccs:t18 :
vIn file included from o../src/s2/s2closest_edge_query.hi:d26*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21p:
)In file included from  /usr/local/clang/include/absl/log/internal/check_op.h{:
41      :
| In file included from                                             ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/base/nullability.h::71241::2622::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241    | 71# | d e fLiongeM easbssalg_en(ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:In file included from 45s2/s2closest_edge_query.cc::4518::
 In file included from warning: ../src/s2/s2closest_edge_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
26:
In file included from ../src/s2/base/logging.h:   2145:
 | In file included from i/usr/local/clang/include/absl/log/check.hn:l37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :u21i:
nIn file included from t/usr/local/clang/include/absl/log/internal/check_op.h3:241_:
tIn file included from  /usr/local/clang/include/absl/log/internal/strip.hU:n26a:
l/usr/local/clang/include/absl/log/internal/log_message.hi:g78n:e26d:L owarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
32(   c78o | n s tL ovgoMieds*s aagbes(lc_onnosntn uclhla rp*)  a{b
s      l| _                                            ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :f inote: lexpanded from macro 'absl_nonnull'e
,   i241n | t# dleifnien,e
       a| b                         ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.hIn file included from :s2/s2contains_vertex_query.cc26::
18/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 80../src/s2/s2contains_vertex_query.h::2621::
 In file included from warning: /usr/local/clang/include/absl/container/btree_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h   :8069 | :
 In file included from  /usr/local/clang/include/absl/container/internal/container_memory.hL:o29g:
MIn file included from e/usr/local/clang/include/absl/hash/hash.hs:s89a:
gIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h(:c79o:
nIn file included from s/usr/local/clang/include/absl/base/internal/endian.ht: 26c:
h/usr/local/clang/include/absl/base/internal/unaligned_access.ha:r51*: 45a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non   n51u | liln lfiinlee ,u iinntt6 4l_itn eU,n
a      l| i                         ^g
ne/usr/local/clang/include/absl/base/nullability.hd:L241o:a22d:6 4note: (expanded from macro 'absl_nonnull'c
on  s241t |  #vdoeid* faibnsel _anbosnln_unloln npu)l l{ 
      _| N                                            ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2closest_edge_query.ccn:u18l:
lIn file included from 
../src/s2/s2closest_edge_query.h      :| 26                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int In file included from ls2/s2contains_vertex_query.cci:n18e:
,In file included from 
../src/s2/s2contains_vertex_query.h      :| 21                         ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/base/nullability.h66::
241In file included from :/usr/local/clang/include/absl/container/internal/btree.h22::69 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/container_memory.h
:29  :
241In file included from  | /usr/local/clang/include/absl/hash/hash.h#:d89e:
fIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hn:e79 :
aIn file included from b/usr/local/clang/include/absl/base/internal/endian.hs:l26_:
n/usr/local/clang/include/absl/base/internal/unaligned_access.ho:n57n:u36l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn   u57l | li
n      l| i                     ^n
e void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26In file included from :
s2/s2contains_vertex_query.ccIn file included from :../src/s2/base/logging.h18::
21In file included from :
../src/s2/s2contains_vertex_query.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h66::
21In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h69::
41In file included from :
/usr/local/clang/include/absl/container/internal/container_memory.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h29::
26In file included from In file included from :
s2/s2closest_point_query.cc/usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/log/internal/log_message.h:::1889119:
:
:In file included from In file included from 41../src/s2/s2closest_point_query.h/usr/local/clang/include/absl/hash/internal/hash.h::: 2579warning: :
:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from In file included from 
../src/s2/base/logging.h/usr/local/clang/include/absl/base/internal/endian.h::2126  :
:
119/usr/local/clang/include/absl/base/internal/unaligned_access.hIn file included from  | : /usr/local/clang/include/absl/log/check.h61 ::L37o36g:
:MIn file included from e swarning: /usr/local/clang/include/absl/log/internal/check_impl.hstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:a
21g:
e   /usr/local/clang/include/absl/log/internal/check_op.h&61:  | 503iT:no1Sl:ii nnkwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]les
 ov(oa  ib503sd |  AlUB:nS:aLLl_ioLgOgnGSe_idInSNkt*T oEarRbesNl3_A2nL(o_vnCnoHuiEldCl* Ks i_anObPks)_l;I_M
nPo      Ln(| nC                                        ^uh
lelc/usr/local/clang/include/absl/base/nullability.h k:p_,241N E:u,i22 n!:t=3 )2
_note:       expanded from macro 'absl_nonnull't|  
^v
  )241/usr/local/clang/include/absl/log/internal/check_op.h  | :{#488d
e:      f32i| :                                   ^n enote:  
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
b/usr/local/clang/include/absl/base/nullability.hs:  l241_488n: | o22 n:n  iunote: nlexpanded from macro 'absl_nonnull'll
i n  _e241N o | nc#ondunelslft
ien      xep|                       ^ra 
bcsoln_snto ncnhualrl*  _aNbosnln_unlull
lIn file included from       as2/s2closest_edge_query.cc| b                     ^l:
e18 :
nIn file included from a../src/s2/s2closest_edge_query.hm:e26#:
#In file included from I../src/s2/base/logging.hm:p21l:
(In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
\/usr/local/clang/include/absl/log/internal/log_message.h
:      121| In file included from :                               ^s2/s2contains_vertex_query.cc41
::18 :
/usr/local/clang/include/absl/base/nullability.hIn file included from warning: :../src/s2/s2contains_vertex_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257:
:2123:
:In file included from    /usr/local/clang/include/absl/container/btree_map.h121note: : | expanded from macro 'absl_nullable' 66 
:
LIn file included from   o/usr/local/clang/include/absl/container/internal/btree.h257g:M | e69#s:
dsIn file included from ea/usr/local/clang/include/absl/container/internal/container_memory.hfg:ie29n&:
e In file included from  T/usr/local/clang/include/absl/hash/hash.hao:bS89si:
lnIn file included from k_/usr/local/clang/include/absl/hash/internal/hash.hOnn:luy79(l:
alIn file included from ba/usr/local/clang/include/absl/base/internal/endian.hsbll::e:26 L:
o/usr/local/clang/include/absl/base/internal/unaligned_access.h_gNS:ui65nl:kl36a*: ba bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sel

_      n| o                         ^n65
n | uilnll isnien kIn file included from v)s2/s2closest_point_query.cco;:i
18d      :
 | In file included from U                                        ^../src/s2/s2closest_point_query.hn
:a25l/usr/local/clang/include/absl/base/nullability.h:
i:In file included from g241../src/s2/base/logging.hn::e2221d::
S In file included from tnote: /usr/local/clang/include/absl/log/check.hoexpanded from macro 'absl_nonnull':r
37e:
  6In file included from 4241/usr/local/clang/include/absl/log/internal/check_impl.h( | :v#21od:
ie/usr/local/clang/include/absl/log/internal/check_op.hdf:*i503 n:ae1b :sa lbwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sn
oln/usr/local/clang/include/absl/log/internal/check_op.h_n:un489lo:nl47n :up ,lnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'lu
i n_tN  6o4894n | _n tu l l 
v       )  |  {                     ^c
o
      n| s                                   ^t
 T/usr/local/clang/include/absl/base/nullability.h1:&241 :v221:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241 T | 2#&d evf2i,n ec oanbsstl _cnhoanrn*u lalb s_lN_onnonnunlull
l       | e                     ^x
prtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2closest_edge_query.cc
:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2closest_point_query.ccb:s18l:
_In file included from n../src/s2/s2closest_point_query.hu:l25l:
aIn file included from b../src/s2/base/logging.hl:e21 :
_In file included from N/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                      ^503
:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |  In file included from  s2/s2closest_edge_query.cci:n18l:
iIn file included from n../src/s2/s2closest_edge_query.he: 26c:
oIn file included from n../src/s2/base/logging.hs:t21e:
xIn file included from p/usr/local/clang/include/absl/log/check.hr: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
cIn file included from h/usr/local/clang/include/absl/log/internal/check_op.ha:r41*:
 In file included from a/usr/local/clang/include/absl/log/internal/strip.hb:s26l:
_/usr/local/clang/include/absl/log/internal/log_message.hn:u161l:l38a:b lwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
nam  e161# | # I mLpolg(M e s s a g e &   o p e r a t o r < < (\c
o      n| s                               ^t
 v/usr/local/clang/include/absl/base/nullability.ho:i257d:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  u257l | l#adbelfei n ev )a b{s
l      _| n                                     ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b257l:e23 :_ Nnote: uexpanded from macro 'absl_nullable'l
la  b257l | e#
d      e| f                      ^i
ne absl_In file included from ns2/s2closest_point_query.ccu:l18l:
aIn file included from b../src/s2/s2closest_point_query.hl:e25 :
_In file included from N../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                      ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2closest_edge_query.ccd:e18f:
iIn file included from n../src/s2/s2closest_edge_query.he: 26a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hu:l41l:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                     ^26
:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.hIn file included from :s2/s2closest_point_query.cc89::
18In file included from :
/usr/local/clang/include/absl/hash/internal/hash.hIn file included from :../src/s2/s2closest_point_query.h79::
25:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :../src/s2/base/logging.h164::2127:
:In file included from  /usr/local/clang/include/absl/log/check.h:warning: 37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
  164/usr/local/clang/include/absl/log/internal/check_op.h | :i504n:l1i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]v
oid   504S | tAoBrSeL1_6L(OvGo_iIdN*T EaRbNsAlL__nCoHnEnCuKl_lO Pp_,I MuPiLn(tC1h6e_ctk _vL)E ,{ 
<      =| )                          ^

      | ^/usr/local/clang/include/absl/base/nullability.h
:241:22/usr/local/clang/include/absl/log/internal/check_op.h::488:32:  note: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'absl_nonnull'

  241   | 488# | d e fiinnlei naeb sclo_nnsotnenxuplrl  c_oNnosntn uclhla
r      *|                       ^a
bsl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  In file included from 257s2/s2contains_vertex_query.cc | :#18d:
eIn file included from f../src/s2/s2contains_vertex_query.hi:n21e:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l69l:
aIn file included from b/usr/local/clang/include/absl/container/internal/container_memory.hl:e29 :
_In file included from N/usr/local/clang/include/absl/hash/hash.hu:l89l:
aIn file included from b/usr/local/clang/include/absl/hash/internal/hash.hl:e79
:
      | /usr/local/clang/include/absl/base/internal/endian.h                      ^:
168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | iIn file included from ns2/s2closest_point_query.ccl:i18n:
eIn file included from  ../src/s2/s2closest_point_query.hu:i25n:
tIn file included from 3../src/s2/base/logging.h2:_21t:
 In file included from L/usr/local/clang/include/absl/log/check.ho:a37d:
3In file included from 2/usr/local/clang/include/absl/log/internal/check_impl.h(:c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t504 :v1o:i dwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l489_:n47o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l p  )489  | { 
        |                                     ^ 
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :T 1note: &expanded from macro 'absl_nonnull' 
v1  ,241  | c#odnesfti nTe2 &a bvs2l,_ ncoonnnsutl lc h_aNro*n naublsll
_      n| o                     ^n
null exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2contains_vertex_query.ccn:o18n:
nIn file included from u../src/s2/s2contains_vertex_query.hl:l21 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl:
69      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/container_memory.h
:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2closest_point_query.ccl:l18 :
_In file included from N../src/s2/s2closest_point_query.ho:n25n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const chIn file included from as2/s2contains_vertex_query.ccr:*18 :
aIn file included from b../src/s2/s2contains_vertex_query.hs:l21_:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66a:
bIn file included from l/usr/local/clang/include/absl/container/internal/btree.he: 69n:
aIn file included from m/usr/local/clang/include/absl/container/internal/container_memory.he:#29#:
IIn file included from m/usr/local/clang/include/absl/hash/hash.hp:l89(:
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 176 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      176\ | 
i      n| l                               ^i
ne/usr/local/clang/include/absl/base/nullability.h :u257i:n23t:6 4note: _expanded from macro 'absl_nullable't
 L  o257a | d#6d4e(fcionnes ta bvsoli_dn*u lalbasbll_en o_nNnuulllla bp)l e{

            | |                       ^                                   ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2closest_point_query.cc:18  :
241In file included from  | ../src/s2/s2closest_point_query.h#:d25e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 504_:N1o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
/usr/local/clang/include/absl/log/internal/check_op.h      :| 498                     ^:
35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnuIn file included from ls2/s2contains_vertex_query.ccl: 18e:
xIn file included from p../src/s2/s2contains_vertex_query.hr:t21e:
xIn file included from t/usr/local/clang/include/absl/container/btree_map.h): 66{:
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 69 :
 In file included from  /usr/local/clang/include/absl/container/internal/container_memory.h : 29 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h\:
79      :
| /usr/local/clang/include/absl/base/internal/endian.h                                  ^:
180:27/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
180 |   i241n | l#idneef ivnoei da bSstlo_rneo6n4n(uvloli d_*N oanbnsull_ln
o      n| n                     ^u
ll p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     cIn file included from os2/s2contains_vertex_query.ccn:s18t:
 In file included from w../src/s2/s2contains_vertex_query.hc:h21a:
rIn file included from _/usr/local/clang/include/absl/container/btree_map.ht:*66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l69_:
nIn file included from u/usr/local/clang/include/absl/container/internal/container_memory.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/hash/hash.he: 89c:
oIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hs:t79&:
 /usr/local/clang/include/absl/base/internal/endian.hv:)250;:
36      :|                     ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:  257250: | 23i:n lnote: iexpanded from macro 'absl_nullable'n
e   u257i | n#td1e6f_itn eL oaabds1l6_(ncuolnlsatb lveo i_dN*u lalbasbll_en
o      n| n                      ^u
ll pIn file included from )s2/s2closest_point_query.cc :{18
:
      In file included from | ../src/s2/s2closest_point_query.h                                   ^:
25:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22/usr/local/clang/include/absl/log/check.h:: 37:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  241/usr/local/clang/include/absl/log/internal/check_op.h | :#505d:e1f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l505_ | nAoBnSnLuIn file included from _ls2/s2closest_edge_query.ccLl:O G18__N:
IoIn file included from Nn../src/s2/s2closest_edge_query.hTnE:uRl26NlA:

LIn file included from       _../src/s2/base/logging.h| C                     ^:H
E21C:
KIn file included from _/usr/local/clang/include/absl/log/check.hO:P37_:
IIn file included from M/usr/local/clang/include/absl/log/internal/check_impl.hP:L21(:
CIn file included from h/usr/local/clang/include/absl/log/internal/check_op.he:c41k:
_In file included from L/usr/local/clang/include/absl/log/internal/strip.hT:,26 :
</usr/local/clang/include/absl/log/internal/log_message.h):
321      :| 52^:
 warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
488In file included from :s2/s2contains_vertex_query.cc  32:321:18 |  :
iIn file included from nnote: ../src/s2/s2contains_vertex_query.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l:
i21n:
  eIn file included from  488L/usr/local/clang/include/absl/container/btree_map.h | o:g 66M e:
isIn file included from ns/usr/local/clang/include/absl/container/internal/btree.hla:ig69ne:
e&In file included from   /usr/local/clang/include/absl/container/internal/container_memory.hLc:oo29ng:
sMIn file included from te/usr/local/clang/include/absl/hash/hash.hes:xs89pa:
rgIn file included from  e/usr/local/clang/include/absl/hash/internal/hash.hc::o:79nosp:
te/usr/local/clang/include/absl/base/internal/endian.h r:ca254ht:ao27rr:*<  <warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](bw
sclh  _a254nr | u_iltnl*la ibanlbees l _vnonauimldel #aS#btlIoemr pevl1)( 6 {( 
v       o i|                                                     ^d 
*   /usr/local/clang/include/absl/base/nullability.ha :b s 257l _: n 23o n: note: expanded from macro 'absl_nullable'
 n u   l 257l\ 
 | p#      ,d| e                                ^fu
iinn/usr/local/clang/include/absl/base/nullability.het :1a257b6s:_l23t_: n vunote: )expanded from macro 'absl_nullable'l 
l{  
a257b       | l| #e                          ^d 
e_f/usr/local/clang/include/absl/base/nullability.hNiu:nl241lea: b22al:eb 
note: sexpanded from macro 'absl_nonnull'      l
| _  n                      ^241u
 | l#ldaebflien e_ Naublslla_bnloen
n      u| l                      ^l
 _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, In file included from cs2/s2contains_vertex_query.cco:n18s:
tIn file included from  ../src/s2/s2contains_vertex_query.hT:221&:
 In file included from v/usr/local/clang/include/absl/container/btree_map.h2:,66 :
cIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:s69t:
 In file included from c/usr/local/clang/include/absl/container/internal/container_memory.hh:a29r:
*In file included from  /usr/local/clang/include/absl/hash/hash.ha:b89s:
lIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hn:o79n:
n/usr/local/clang/include/absl/base/internal/endian.hu:l258l: 36e:x pwarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ext  )258  | {i n l i n e\ 
u      In file included from i| n                                              ^s2/s2closest_edge_query.cct
:318/usr/local/clang/include/absl/base/nullability.h2:
:_In file included from 241t../src/s2/s2closest_edge_query.h: :22L26:o:
 aIn file included from note: dexpanded from macro 'absl_nonnull'../src/s2/base/logging.h3
2:(  21c241:
o | nIn file included from #sd/usr/local/clang/include/absl/log/check.hte :fvi37on:
iedIn file included from  *a/usr/local/clang/include/absl/log/internal/check_impl.h b:asb21ls:
_lIn file included from n_o/usr/local/clang/include/absl/log/internal/check_op.hnno:nnu41nlu:
ll In file included from l_ /usr/local/clang/include/absl/log/internal/strip.hNpo:)n26 n{:
u
l/usr/local/clang/include/absl/log/internal/log_message.h      l:| 
                                   ^340      
:| 46/usr/local/clang/include/absl/base/nullability.h                     ^::
 241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
340 |    241  | f#rdieefnidn ev oaibds lA_bnsolnFnourlmla t_FNlounsnhu(lSlt
r      i| n                     ^g
ifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2closest_point_query.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2closest_point_query.h | :#25dIn file included from :
es2/s2contains_vertex_query.ccIn file included from f:i../src/s2/base/logging.hn18::
e21In file included from  :
../src/s2/s2contains_vertex_query.haIn file included from b:/usr/local/clang/include/absl/log/check.hs21:l:
37_In file included from n:
/usr/local/clang/include/absl/container/btree_map.hoIn file included from :n/usr/local/clang/include/absl/log/internal/check_impl.h66n::
u21In file included from l:
/usr/local/clang/include/absl/container/internal/btree.hl/usr/local/clang/include/absl/log/internal/check_op.h ::_69505N:
:oIn file included from 1n/usr/local/clang/include/absl/container/internal/container_memory.h:n: u29warning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
l
In file included from 
/usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/log/internal/check_op.h      ::| 89497                     ^:
:
In file included from 32/usr/local/clang/include/absl/hash/internal/hash.h:: 79:
note: /usr/local/clang/include/absl/base/internal/endian.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
262:27:   warning: 497type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  i  n262l | iinnel icnoen svtoeixdp rS tcoornes3t2 (cvhoaird**  aabbssll__nnuolnlnaubllle  pn,a muei#n#tI3m2p_lt(  v )   { 
        |                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

        | 241                               ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f257i:n23e:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli n_eN oanbnsull_ln
u      l| l                     ^a
ble _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498In file included from :s2/s2contains_vertex_query.cc35::18 :
In file included from note: ../src/s2/s2contains_vertex_query.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:  66498:
 | In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 69 :
 In file included from  /usr/local/clang/include/absl/container/internal/container_memory.hi:n29t:
 In file included from v/usr/local/clang/include/absl/hash/hash.h1:,89 :
iIn file included from n/usr/local/clang/include/absl/hash/internal/hash.ht: 79v:
2/usr/local/clang/include/absl/base/internal/endian.h,: 266c:o36n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har  *266  | aibnslli_nneo nuniunltl6 4e_xtp rLtoeaxdt6)4 ({c o n s t   v o i d *   a b s l _ n\o
n      n| u                                  ^l
l /usr/local/clang/include/absl/base/nullability.hp:)241 :{22
:       | note:                                    ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2closest_point_query.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2closest_point_query.h37::
25In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/base/logging.h21::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/check.h41::
37In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h26::
21/usr/local/clang/include/absl/log/internal/log_message.h:
:436/usr/local/clang/include/absl/log/internal/check_op.h::36506:: 1warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  436 |     506L | oAgBMSeLs_sLaOgGe_DIeNbTuEgRFNaAtLa_lC(HcEoCnst cKh_aOrP*_ IaMbPsLl(_Cnhoencnku_lGlE ,f i>l=e),

            | | ^                                   ^

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::488241::3222::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'absl_nonnull'

    241488 |  | # d eifnilnien ea bcsoln_sntoenxnpurl lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2closest_edge_query.cca:b18s:
lIn file included from _../src/s2/s2closest_edge_query.hn:u26l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from _/usr/local/clang/include/absl/log/check.hN:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:

In file included from       /usr/local/clang/include/absl/log/internal/check_op.h| :                      ^41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_point_query.cc:18  :
446In file included from  | ../src/s2/s2closest_point_query.h : 25L:
oIn file included from g../src/s2/base/logging.hM:e21s:
sIn file included from a/usr/local/clang/include/absl/log/check.hg:e37Q:
uIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.he:t21l:
y/usr/local/clang/include/absl/log/internal/check_op.hD:e506b:u1g:F awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l(/usr/local/clang/include/absl/log/internal/check_op.hc:o489n:s47t:  cnote: hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
r*   a489b | s l _ n o n ncuolnls tf iTl1e&, 
v      1| ,                                          ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22T:2 &note:  expanded from macro 'absl_nonnull'v
2,   241c | o#ndsetf icnhea ra*b salb_snlo_nnnounlnlu l_lN oenxnpurltle
x      t| )                     ^ 
{     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2closest_point_query.ccf:i18n:
eIn file included from  ../src/s2/s2closest_point_query.ha:b25s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l506
:      1| :                     ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlinIn file included from es2/s2closest_edge_query.cc :c18o:
nIn file included from s../src/s2/s2closest_edge_query.ht:e26x:
pIn file included from r../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37c:
hIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hr:*21 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs:l41_:
nIn file included from u/usr/local/clang/include/absl/log/internal/strip.hl:l26a:
b/usr/local/clang/include/absl/log/internal/log_message.hl:e456 :n38a:m ewarning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
Imp  l456( |      L o g M e s s a g e Q u i e t l y\F
a      t| a                               ^l
(c/usr/local/clang/include/absl/base/nullability.ho:n257s:t23 :c hnote: aexpanded from macro 'absl_nullable'r
*   a257b | s#ld_enfoinnneu lalb sfli_lneu,l lianbtl el i_nNeu,l
l      a|                                      ^
b/usr/local/clang/include/absl/base/nullability.hl:e241
:      22| :                      ^ 
note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2closest_point_query.cci:n18e:
 In file included from a../src/s2/s2closest_point_query.hb:s25l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
506      :| 1                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's2/s2closest_edge_query.cc
:18:
In file included from   ../src/s2/s2closest_edge_query.h498: | 26 :
 In file included from  ../src/s2/base/logging.h : 21 :
iIn file included from n/usr/local/clang/include/absl/log/check.ht: 37v:
1In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :i21n:
tIn file included from  /usr/local/clang/include/absl/log/internal/check_op.hv:241,:
 In file included from c/usr/local/clang/include/absl/log/internal/strip.ho:n26s:
t/usr/local/clang/include/absl/log/internal/log_message.h :c457h:a38r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n457o | n n u l l   e x p r t e x t )   {                  c o n s t   c h a\r
*       | a                                  ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
fa  i241l | u#rdee_fmisnge) 
a      b| s                                     ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2closest_point_query.cc202: | 18 :
 In file included from e../src/s2/s2closest_point_query.hx:p25l:
iIn file included from c../src/s2/base/logging.hi:t21 :
CIn file included from h/usr/local/clang/include/absl/log/check.he:c37k:
OIn file included from p/usr/local/clang/include/absl/log/internal/check_impl.hM:e21s:
s/usr/local/clang/include/absl/log/internal/check_op.ha:g507e:B1u:i lwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
r(co  n507s | tA BcShLa_rL*O Ga_bIsNlT_EnRoNnAnLu_lClH EeCxKp_rOtPe_xItM)P;L
(      C| h                                             ^e
ck/usr/local/clang/include/absl/base/nullability.h_:G241T:,22 :> )note: 
expanded from macro 'absl_nonnull'      
| ^  
241 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e488f:i32n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_  n488o | n n uilnll i_nNeo ncnounlslt
e      x| p                     ^r
 const char* absl_nullable name##Impl(             In file included from  s2/s2closest_edge_query.cc : 18 :
 In file included from  ../src/s2/s2closest_edge_query.h\:
26      :
| In file included from                                ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h257::3723:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nullable'21
:
/usr/local/clang/include/absl/log/internal/check_op.h  :257209 | :#15d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b209s | l _ ncuolnlsatb lceh a_rN*u lalbasbll_en
o      n| n                      ^u
ll NewString(In file included from )s2/s2closest_point_query.cc;:
18      :
| In file included from               ^../src/s2/s2closest_point_query.h
:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nonnull'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e507f:i1n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n489o:n47n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
_No  n489n | u l l 
        |                       ^c
onst T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(In file included from ss2/s2closest_point_query.cct:d18::
:In file included from o../src/s2/s2closest_point_query.hs:t25r:
eIn file included from a../src/s2/base/logging.hm:&21 :
oIn file included from s/usr/local/clang/include/absl/log/check.h,: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
v/usr/local/clang/include/absl/log/internal/check_op.ho:i507d:*1 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/log/internal/check_op.hu:llab497l:e32 :p )note: ;expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

      |                                                           ^
  497 | /usr/local/clang/include/absl/base/nullability.h : 257i:n23l:i nnote: eexpanded from macro 'absl_nullable' 
co  n257s | t#edxepfri nceo nasbts lc_hnaurl*l aabblsel __nNuullllaabbllee 
n      a| m                      ^e
##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2closest_edge_query.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2closest_edge_query.h | :#26d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l276 :_13N:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll
        | 276                     ^ | 
const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nIn file included from os2/s2closest_point_query.ccn:n18u:
lIn file included from l../src/s2/s2closest_point_query.h):;25
:
      In file included from | ../src/s2/base/logging.h                                                                  ^:
21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h241::3722:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nonnull'21
:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 511#:d13e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 abs  l511_ | ncoonnnsutl lc h_aNro*n naublsll
_      n| u                     ^l
lable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absIn file included from ls2/s2closest_edge_query.cc_:n18u:
lIn file included from l../src/s2/s2closest_edge_query.ha:b26l:
eIn file included from  ../src/s2/base/logging.h_:N21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                      ^:

/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_point_query.cc:  18323:
 | In file included from  ../src/s2/s2closest_point_query.h :f25r:
iIn file included from e../src/s2/base/logging.hn:d21 :
vIn file included from o/usr/local/clang/include/absl/log/check.hi:d37 :
AIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21F:
o/usr/local/clang/include/absl/log/internal/check_op.hr:m512a:t47F:l uwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]h
(St  r512i | n g i f ycSoinnskt*  cahbasrl*_ naobnsnlu_lnlu lslianIn file included from bks2/s2contains_vertex_query.ccl,:e
18       :
s| In file included from 1                                             ^../src/s2/s2contains_vertex_query.h,
: 21c:
o/usr/local/clang/include/absl/base/nullability.hIn file included from n:/usr/local/clang/include/absl/container/btree_map.hs241:t:66 22:
c:In file included from h /usr/local/clang/include/absl/container/internal/btree.hanote: :expanded from macro 'absl_nonnull'r69*
:
 In file included from a  /usr/local/clang/include/absl/container/internal/container_memory.hb241:s | 29l#:
_dIn file included from en/usr/local/clang/include/absl/hash/hash.hfui:ln89le:
a In file included from ba/usr/local/clang/include/absl/hash/internal/hash.hlb:es89l :
_sIn file included from 2n/usr/local/clang/include/absl/numeric/int128.h,o:n
41n      :
u| /usr/local/clang/include/absl/types/compare.h                                              ^l:
l78 /usr/local/clang/include/absl/base/nullability.h:_:22N257:o: n23warning: n:'enable_if' is a clang extension [-Wgcc-compat]u 
lnote: lexpanded from macro 'absl_nullable'

         78  |  | 257                     ^  | 
 # d e f i_n_ea tatbrsilb_untuel_l_a(b(leen a_bNluel_liafb(lne 
=      =|                        ^0
, "OnlIn file included from ys2/s2closest_point_query.cc :l18i:
tIn file included from e../src/s2/s2closest_point_query.hr:a25l:
 In file included from `../src/s2/base/logging.h0:`21 :
iIn file included from s/usr/local/clang/include/absl/log/check.h :a37l:
lIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hw:e21d:
./usr/local/clang/include/absl/log/internal/check_op.h":)513):)17 :{ }warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      In file included from | s2/s2closest_edge_query.cc                ^:
18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_edge_query.h241::2622:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :a428b:s44l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   428_ | NAoBnSnLu_lAlT
T      R| I                     ^B
UTE_RETURNS_NOIn file included from Ns2/s2closest_point_query.ccN:U18L:
LIn file included from  ../src/s2/s2closest_point_query.hc:o25n:
sIn file included from t../src/s2/base/logging.h :c21h:
aIn file included from r/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n517u:l13l:  Mwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]k
eCh  e517c | kcOopnSsttr icnhga(r
*       | a                                           ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
Ch  e241c | k#sdterfciansee cambpstlr_uneoInmnpull(l
       _| N            ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l:
23      :|                       ^note: 
expanded from macro 'absl_nullable'
  257 | #defiIn file included from ns2/s2closest_edge_query.cce: 18a:
bIn file included from s../src/s2/s2closest_edge_query.hl:_26n:
uIn file included from l../src/s2/base/logging.hl:a21b:
lIn file included from e/usr/local/clang/include/absl/log/check.h :_37N:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
l/usr/local/clang/include/absl/log/internal/check_op.he:
429      :| 31                      ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_point_query.cc:18:
  In file included from 429../src/s2/s2closest_point_query.h | : 25 :
 In file included from  ../src/s2/base/logging.hT:121 :
vIn file included from 1/usr/local/clang/include/absl/log/check.h,: 37T:
2In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hv:221,:
 /usr/local/clang/include/absl/log/internal/check_op.hc:o518n:s17t:  cwarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
r*   a518b | s l _ n ocnonnusltl  cehxaprr*t eaxbts)l _AnBuSlLl_aAbTlTeR IsB1U,T Ec_oNnOsItN LcIhNaEr;*
       a| b                              ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
s2  ,241
 |       #| d                ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld e_fNionnen ualbls
l      _| n                     ^u
llable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:In file included from 25s2/s2closest_edge_query.cc:
:In file included from 18../src/s2/base/logging.h:
:In file included from 21../src/s2/s2closest_edge_query.h:
:In file included from 26/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/check.h:
:/usr/local/clang/include/absl/log/internal/check_op.h37::
518In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h47::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
432:13:   518warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     c432o | ncsotn scth acrh*a ra*b salb_snlu_lnloanbnluel ls 1M,a kceoCnhsetc kcOhpaSrt*r ianbgs(lT_1n uvl1l,a bTl2e  vs22,,

            | |             ^                                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241257::2223::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullable'

    241257 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbll e_ N_oNnunlullalb
l      e| 
                     ^      
|                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26In file included from :
s2/s2closest_point_query.ccIn file included from :../src/s2/base/logging.h18::
21In file included from :
../src/s2/s2closest_point_query.hIn file included from :/usr/local/clang/include/absl/log/check.h25::
37In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h21::
21In file included from :
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_op.h::37433:
:In file included from 56/usr/local/clang/include/absl/log/internal/check_impl.h:: 21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:519:17  :433  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     519  |          c o n s t   c h a r *   a b s l _ n o n n u l l   e x p r t e x tc)o;n
s      t|                  ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld eefxipnret eaxbts)l _{n
o      n| n                                                       ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absIn file included from ls2/s2closest_point_query.cc_:n18o:
nIn file included from n../src/s2/s2closest_point_query.h:u25l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullaIn file included from bs2/s2closest_edge_query.ccl:e18 :
sIn file included from 1../src/s2/s2closest_edge_query.h,: 26c:
oIn file included from n../src/s2/base/logging.hs:t21 :
cIn file included from h/usr/local/clang/include/absl/log/check.ha:r37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:u451l:l1a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
s2,
        451|  |                 ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_257L:O23G:_ Inote: Nexpanded from macro 'absl_nullable'T
ER  N257A | L#_dDeEfFiInNeE _aMbAsKlE__nCuHlElCaKb_lOeP __SNTuRlIlNaGb_lEeX
T      E| R                      ^N
(bool)In file included from ;s2/s2closest_point_query.cc
:      18| :
^In file included from 
../src/s2/s2closest_point_query.h:25/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 449../src/s2/base/logging.h::3121::
 In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :44921 | :
 /usr/local/clang/include/absl/log/internal/check_op.h :e521x:t47e:r nwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
emp  l521a | t e   c ocnosnts tc hcahra*r *a basbls_ln_onnunlullalb lMea kse1C,h eccoknOsptS tcrhianrg*(  a b s\l
_      n| u                              ^l
la/usr/local/clang/include/absl/base/nullability.hb:l241e: 22s:2 ,note: 
expanded from macro 'absl_nonnull'      
|                                               ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _NullIn file included from as2/s2closest_edge_query.ccb:l18e:

In file included from       ../src/s2/s2closest_edge_query.h| :                      ^26
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2closest_point_query.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2closest_point_query.h::45125::
1In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_op.h::37450:
:In file included from 25/usr/local/clang/include/absl/log/internal/check_impl.h:: 21note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/log/internal/check_op.h
:522:  17450: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     522x | ,   x ,  ccoonnsstt c hcahra*r *a basbls_ln_onnonnunlull le)x
p      r| t                        ^e
xt/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const charIn file included from *s2/s2convex_hull_query.cc :a26b:
sIn file included from l../src/s2/s2convex_hull_query.h_:n25u:
lIn file included from l../src/s2/s2cap.ha:b27l:
eIn file included from  ../src/s2/base/logging.hs:221,:

In file included from       /usr/local/clang/include/absl/log/check.h| :                ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21257:
:In file included from 23/usr/local/clang/include/absl/log/internal/check_op.h:: 40note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/internal/nullstream.h:  37257:
 | #/usr/local/clang/include/absl/strings/string_view.hd:e53f:i54n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_nullable    53_ | Ncuolnlsatbelxep
r       | s                      ^t
ring_view In file included from Ns2/s2closest_edge_query.ccu:l18l:
SIn file included from a../src/s2/s2closest_edge_query.hf:e26S:
tIn file included from r../src/s2/base/logging.hi:n21g:
VIn file included from i/usr/local/clang/include/absl/log/check.he:w37(:
cIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:s21t:
 /usr/local/clang/include/absl/log/internal/check_op.hc:h521a:r47*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n  u521l | l a b l ec opn)s t{ 
c      h| a                                                     ^r
* absl_/usr/local/clang/include/absl/base/nullability.hn:u257l:l23a:b lnote: eexpanded from macro 'absl_nullable' 
s1  ,257  | c#odnesfti nceh aarb*s la_bnsull_lnaublllea b_lNeu lsl2a,b
l      e| 
                                              ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
In file included from /usr/local/clang/include/absl/flags/commandlineflag.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
380 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2earth.cc -o s2/s2earth.o
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:199:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
443 warnings generated.
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2edge_clipping.cc -o s2/s2edge_clipping.o
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnIn file included from as2/s2convex_hull_query.ccl:i26g:
nIn file included from e../src/s2/s2convex_hull_query.hd:L25o:
aIn file included from d../src/s2/s2cap.h3:227(:
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from v/usr/local/clang/include/absl/log/check.ho:i37d:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l_/usr/local/clang/include/absl/log/internal/check_op.hn:o506n:n1u:l lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
) {  
506       | | A                                            ^B
SL/usr/local/clang/include/absl/base/nullability.h_:L241O:G22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#CdHeEfCiKn_eO Pa_bIsMlP_Ln(oCnhneuclkl_ G_EN,o n>n=u)l
l      
|       ^| 
                     ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:In file included from 26s2/s2convex_hull_query.cc:
:/usr/local/clang/include/absl/base/internal/unaligned_access.h26::
61In file included from :../src/s2/s2convex_hull_query.h36::25 :
In file included from warning: ../src/s2/s2cap.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/base/logging.h:   2161:
 | In file included from i/usr/local/clang/include/absl/log/check.hn:l37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :v21o:
id/usr/local/clang/include/absl/log/internal/check_op.h :U507n:a1l:i gwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
dSt  o507r | eA3B2S(Lv_oLiOdG*_ IaNbTsElR_NnAoLn_nCuHlElC Kp_,O Pu_iInMtP3L2(_Cth evc)k _{G
T      ,|                                     ^>
)
      /usr/local/clang/include/absl/base/nullability.h| :^241
:22: /usr/local/clang/include/absl/log/internal/check_op.h:note: 488expanded from macro 'absl_nonnull':
32:   241note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'#
def  i488n | e   aibnslli_nneo ncnounlslt e_xNporn ncuolnls
t       | c                     ^h
ar* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2closest_cell_query.cc23::18 :
In file included from note: ../src/s2/s2closest_cell_query.hexpanded from macro 'absl_nullable':
26:
In file included from   ../src/s2/s1angle.h257: | 28#:
dIn file included from e../src/s2/s2point.hf:i24n:
eIn file included from  /usr/local/clang/include/absl/hash/hash.ha:b89s:
lIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hn:u79l:
lIn file included from a/usr/local/clang/include/absl/base/internal/endian.hb:l26e:
 /usr/local/clang/include/absl/base/internal/unaligned_access.h_:N65u:l36l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      |                       ^   
65 | inline voidIn file included from  s2/s2convex_hull_query.ccU:n26a:
lIn file included from i../src/s2/s2convex_hull_query.hg:n25e:
dIn file included from S../src/s2/s2cap.ht:o27r:
eIn file included from 6../src/s2/base/logging.h4:(21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n507n:u1l:l  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 u/usr/local/clang/include/absl/log/internal/check_op.hi:n489t:6474:_ tnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'v
) {  
489       | |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'T
1&   241v | 1#,d ecfoinnset  aTb2s&l _vn2o,n ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2centroids.cc:/usr/local/clang/include/absl/log/internal/check_op.h18::
511In file included from :../src/s2/s2centroids.h13::50 :
In file included from warning: ../src/s2/s2point.h:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/util/coding/coder.h:36  :
511In file included from  | ../src/s2/base/casts.hc:o34n:
sIn file included from t/usr/local/clang/include/absl/log/log.h :c209h:
aIn file included from r/usr/local/clang/include/absl/log/internal/log_impl.h*: 20a:
bIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.hl:_63n:
u/usr/local/clang/include/absl/log/internal/vlog_config.hl:l96a:b60l:e  warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ecks   t96r | c m pftrriueenIdm piln(t
       l| o            ^g
_in/usr/local/clang/include/absl/base/nullability.ht:e257r:n23a:l :note: :expanded from macro 'absl_nullable'R
eg  i257s | t#edreAfnidnIen iatbisall_inzuel(lVaLbolgeS i_tNeu*l laabbslle_
n      o| n                      ^n
ull v)In file included from ;s2/s2convex_hull_query.cc
:      26| :
                                                           ^In file included from 
../src/s2/s2convex_hull_query.h:25/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2cap.h::2227::
 In file included from ../src/s2/base/logging.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :a512b:s17l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l512  | _ N o n ncuolnls
t       | c                     ^h
ar* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfIn file included from as2/s2centroids.ccl:s18e:
IIn file included from m../src/s2/s2centroids.hp:l50(:

In file included from       ../src/s2/s2point.h| :            ^25
:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36257:
:In file included from 23../src/s2/base/casts.h:: 34:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/log.h
:209:
  In file included from 257/usr/local/clang/include/absl/log/internal/log_impl.h | :#20d:
eIn file included from f/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:n63e:
 /usr/local/clang/include/absl/log/internal/vlog_config.ha:b119s:l15_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abl  e119  | _ N uclolnasbtl ec
h      a| r                      ^*
 abslIn file included from _s2/s2convex_hull_query.ccn:o26n:
nIn file included from u../src/s2/s2convex_hull_query.hl:l25 :
cIn file included from o../src/s2/s2cap.hn:s27t:
 In file included from f../src/s2/base/logging.hi:l21e:
_In file included from ;/usr/local/clang/include/absl/log/check.h
:      37| :
              ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241515::2217::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241   | 515# | d e f i nceo nasbts lc_hnaorn*n ualbls l__Nnounlnlualbll
e       | s                     ^1
, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2closest_cell_query.cc/usr/local/clang/include/absl/log/check.h::1837:
:
In file included from In file included from ../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/log/internal/check_impl.h::2621:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1angle.h::51828::
47In file included from :../src/s2/s2point.h :24warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/hash/hash.h:89:
  In file included from 518/usr/local/clang/include/absl/hash/internal/hash.h | : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h :c160o:n36s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   a160b | siln_lniunlel aubilnet 1s61_,t  cLoonasdt1 6c(hcaorn*s tab svlo_indu*l laabbslle_ nso2n,n
u      l| l                                              ^ 
p)/usr/local/clang/include/absl/base/nullability.h :{257
:      23| :                                   ^ 
note: expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/base/nullability.h:241  :25722 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innuel laabbslle_ n_oNnunlullalb l_eN
o      n| n                      ^u
ll
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonIn file included from ns2/s2closest_cell_query.ccu:l18l:
 In file included from e../src/s2/s2closest_cell_query.hx:p26r:
tIn file included from e../src/s2/s1angle.hx:t28):
;In file included from 
../src/s2/s2point.h      :| 24                ^:

In file included from /usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/base/nullability.h::89241:
:In file included from 22/usr/local/clang/include/absl/hash/internal/hash.h:: 79:
note: /usr/local/clang/include/absl/base/internal/endian.hexpanded from macro 'absl_nonnull':
164:27  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n164e |  ianIn file included from bls2/s2contains_vertex_query.ccsi:ln18_e:
n In file included from ov../src/s2/s2contains_vertex_query.hon:in21du :
lSltIn file included from o r/usr/local/clang/include/absl/container/btree_map.he_:N166o6:
n(In file included from vn/usr/local/clang/include/absl/container/internal/btree.huo:il73dl*:
 
In file included from a      /usr/local/clang/include/absl/strings/cord.hb| :s                     ^82l
_:
nIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h :p32,In file included from :
 s2/s2convex_hull_query.ccIn file included from u:/usr/local/clang/include/absl/strings/str_format.hi26n:t:
841In file included from :
6../src/s2/s2convex_hull_query.h_In file included from :t/usr/local/clang/include/absl/strings/internal/str_format/bind.h25 :v:
)29 In file included from {:
../src/s2/s2cap.h
:/usr/local/clang/include/absl/strings/internal/str_format/parser.h      27:| :
227                          ^In file included from :
../src/s2/base/logging.h11::21/usr/local/clang/include/absl/base/nullability.h :
:In file included from warning: 241/usr/local/clang/include/absl/log/check.h'enable_if' is a clang extension [-Wgcc-compat]::
2237::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hnote:   expanded from macro 'absl_nonnull':227
21 | :
   /usr/local/clang/include/absl/log/internal/check_op.h241 :  | 520 # :d e13 f:i n  e warning:  etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]naa
bbls  el__520in | ofc(nsonturlnl_sf to r_mcaNhto_anirnn*t eualrlb
nsa      ll:| :                     ^_E
nnsuulrleaCbolnes tCehxepcrk(sftorrcmaaste)c,m
p      f| a          ^l
seImpl(/usr/local/clang/include/absl/strings/internal/str_format/parser.h
:      229| :            ^11
: /usr/local/clang/include/absl/base/nullability.hwarning: :'enable_if' is a clang extension [-Wgcc-compat]257
:23:   note: In file included from 229expanded from macro 'absl_nullable's2/s2closest_cell_query.cc | 
 : 18   :
 257In file included from   |  ../src/s2/s2closest_cell_query.h #: d e 26ef:
niaIn file included from nb../src/s2/s1angle.hle:e 28a_:
ibfIn file included from s(l../src/s2/s2point.hs_:tn24ru_:
flIn file included from /usr/local/clang/include/absl/hash/hash.ho:89:
rIn file included from m/usr/local/clang/include/absl/hash/internal/hash.ha:t79_:
in/usr/local/clang/include/absl/base/internal/endian.ht:e168r:n36a:l :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]V
alid  F168o | rimnaltiInmep lu<iCn.t.3.2>_(tf oLromaadt3)2,(
c      o| n          ^s
t void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89In file included from :
s2/s2centroids.ccIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h18::
79In file included from :
../src/s2/s2centroids.h:/usr/local/clang/include/absl/base/internal/endian.h50::
176In file included from :../src/s2/s2point.h36::25 :
In file included from warning: ../src/s2/util/coding/coder.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
:
In file included from ../src/s2/base/casts.h:34  :
176In file included from  | /usr/local/clang/include/absl/log/log.hi:n209l:
iIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.he: 20u:
iIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.ht:6634:
_/usr/local/clang/include/absl/log/internal/vlog_config.ht: 133L:o37a:d 6warning: 4type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
cons  t133  | vionitd *R eagbisslt_enroAnnnduIlnli tpi)a l{i
z      e| (                                   ^V
Lo/usr/local/clang/include/absl/base/nullability.hg:S241i:t22e:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ev )a;b
s      l| _                                    ^n
onn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(vIn file included from os2/s2centroids.cci:d18*:
 In file included from a../src/s2/s2centroids.hb:s50l:
_In file included from n../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl: 36p:
,In file included from  ../src/s2/base/casts.hu:i34n:
tIn file included from 6/usr/local/clang/include/absl/log/log.h4:_209t:
 In file included from v/usr/local/clang/include/absl/log/internal/log_impl.h): 20{:

In file included from       /usr/local/clang/include/absl/log/absl_vlog_is_on.h| :                          ^63
:
/usr/local/clang/include/absl/log/internal/vlog_config.h/usr/local/clang/include/absl/base/nullability.h::157241::1122::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 157# | dVeLfoignSei taeb*s la_bnsoln_nnuullll a_bNloen nSueltlV
M      o| d                     ^u
leListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2contains_vertex_query.cca:b18s:
lIn file included from _../src/s2/s2contains_vertex_query.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.hb:l66e:
 In file included from _/usr/local/clang/include/absl/container/internal/btree.hN:u73l:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hb:l82e:

In file included from       /usr/local/clang/include/absl/crc/internal/crc_cord_state.h| :                      ^23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.hs2/s2centroids.cc::14318::
11In file included from :../src/s2/s2centroids.h :50warning: :
'enable_if' is a clang extension [-Wgcc-compat]In file included from 
../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h  :14336 | :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
eIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.ha:b20l:
eIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:f63(:
s/usr/local/clang/include/absl/log/internal/vlog_config.ht:r158_:f15o:r mwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
_i  n158t | e r n a lV:L:oEgnSsiutree*C oanbsstle_xnpurl(lsa)b,l e" cvo)n;s
t      e| x              ^p
r /usr/local/clang/include/absl/base/nullability.ht:r257a:p23":) ,note: 
expanded from macro 'absl_nullable'      
|           ^  
257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
lable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2closest_cell_query.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2closest_cell_query.h:26  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e24 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:n79u:
ll/usr/local/clang/include/absl/base/internal/endian.h :_250N:o36n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2closest_edge_query.ccl:_18n:
oIn file included from n../src/s2/s2closest_edge_query.hn:u30l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l24l:

In file included from       /usr/local/clang/include/absl/hash/hash.h| :                     ^89
:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2contains_vertex_query.cc:18  :
160In file included from  | ../src/s2/s2contains_vertex_query.hi:n21l:
iIn file included from n/usr/local/clang/include/absl/container/btree_map.he: 66u:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.ht:1736:
_In file included from t/usr/local/clang/include/absl/strings/cord.h :L82o:
aIn file included from d/usr/local/clang/include/absl/crc/internal/crc_cord_state.h1:623(:
cIn file included from o/usr/local/clang/include/absl/crc/crc32c.hn:s32t:
 /usr/local/clang/include/absl/strings/str_format.hv:o165i:d8*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_  n165o | n n uilnlt *p )a b{s
l      _| n                                   ^o
nnul/usr/local/clang/include/absl/base/nullability.hl: 241p:_22;:
       | note:        ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uinIn file included from ts2/s2contains_vertex_query.cc3:218_:
tIn file included from  ../src/s2/s2contains_vertex_query.hv:)21 :
{In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66                          ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::82241:
:In file included from 22/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:: 23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32:
  /usr/local/clang/include/absl/strings/str_format.h241: | 860#:d43e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 absl  _860n | o n nfurlile n_dN ovnoniudl lA
b      s| l                     ^F
ormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2closest_edge_query.cc
:      18| :
                     ^In file included from 
../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inIn file included from ls2/s2contains_vertex_query.cci:n18e:
 In file included from u../src/s2/s2contains_vertex_query.hi:n21t:
6In file included from 4/usr/local/clang/include/absl/container/btree_map.h_:t66 :
LIn file included from o/usr/local/clang/include/absl/container/internal/btree.ha:d736:
4In file included from (/usr/local/clang/include/absl/strings/cord.hc:o82n:
sIn file included from t/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :v23o:
iIn file included from d/usr/local/clang/include/absl/crc/crc32c.h*: 32a:
b/usr/local/clang/include/absl/strings/str_format.hs:l867_:n60o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l p)   867{ | 
        | e                                   ^x
pli/usr/local/clang/include/absl/base/nullability.hc:i241t: 22F:o rnote: mexpanded from macro 'absl_nonnull'a
tS  i241n | k#(dsetfri_nfeo rambastl__innotnenrunlall :_:NFoonrnmualtlS
i      n| k                     ^I
mpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2closest_edge_query.ccn:n18u:
lIn file included from l../src/s2/s2closest_edge_query.h
:      30| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2contains_vertex_query.cc:18:
  In file included from 270../src/s2/s2contains_vertex_query.h | :i21n:
lIn file included from i/usr/local/clang/include/absl/container/btree_map.hn:e66 :
vIn file included from o/usr/local/clang/include/absl/container/internal/btree.hi:d73 :
SIn file included from t/usr/local/clang/include/absl/strings/cord.ho:r82e:
6In file included from 4/usr/local/clang/include/absl/crc/internal/crc_cord_state.h(:v23o:
iIn file included from d/usr/local/clang/include/absl/crc/crc32c.h*: 32a:
b/usr/local/clang/include/absl/strings/str_format.hs:l869_:n40o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l p  ,869  | u i nstt6r4__fto rvm)a t{_
i      n| t                          ^e
rn/usr/local/clang/include/absl/base/nullability.ha:l241:::22F:o rnote: mexpanded from macro 'absl_nonnull'a
tS  i241n | k#Idmepfli*n ea basbls_ln_onnonnunlull ls i_nNko_n;n
u      l| l                                       ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  In file included from 213s2/s2crossing_edge_query.cc | : 18 :
uIn file included from s../src/s2/s2crossing_edge_query.hi:n29g:
 In file included from c../src/s2/r2.ho:n22s:
tIn file included from _../src/s2/util/math/vector.hp:o36i:
nIn file included from t../src/s2/base/logging.he:r21 :
=In file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :T21*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_op.hb:s41l:
_In file included from n/usr/local/clang/include/absl/log/internal/strip.hu:l26l:
a/usr/local/clang/include/absl/log/internal/log_message.hb:i71l:i26t:y _warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
know   n71; | 
        | L                                 ^o
gM/usr/local/clang/include/absl/base/nullability.he:s289s:a34g:e (note: cexpanded from macro 'absl_nullability_unknown'o
ns  t289  | c#hdaerf*i naeb salb_snlo_nnnuulllla bfiilliet,y _iunntk nloiwnne ,_
N      u| l                         ^l
_un/usr/local/clang/include/absl/base/nullability.hs:p241e:c22i:f inote: eexpanded from macro 'absl_nonnull'd

      |                                    ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<In file included from Ts2/s2crossing_edge_query.cc>: 18M:
aIn file included from k../src/s2/s2crossing_edge_query.he:S29p:
aIn file included from n../src/s2/r2.h(:T22*:
 In file included from a../src/s2/util/math/vector.hb:s36l:
_In file included from n../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37 :
bIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hg:i21n:
 In file included from A/usr/local/clang/include/absl/log/internal/check_op.hB:S41L:
_In file included from A/usr/local/clang/include/absl/log/internal/strip.hT:T26R:
I/usr/local/clang/include/absl/log/internal/log_message.hB:U306T:E3_:L Iwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
TIME  _306B | O U NaDb,s
l      _| n                    ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23s:t dnote: :expanded from macro 'absl_nullable':
un  i257q | u#ed_epftirn<eL oagbMsels_snauglelDaabtlae>  _dNautlal_a;b
l      e| 
  ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2coords.ccd:e18f:
iIn file included from n../src/s2/s2coords.he: 105a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hu:l41l:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                     ^26
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.hs2/s2centroids.cc::31918::
20In file included from :../src/s2/s2centroids.h :50warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:25:
In file included from   ../src/s2/util/coding/coder.h319: | 36 :
 In file included from  ../src/s2/base/casts.h :c34o:
nIn file included from s/usr/local/clang/include/absl/log/log.ht: 209w:
cIn file included from h/usr/local/clang/include/absl/log/internal/log_impl.ha:r22_:
tIn file included from */usr/local/clang/include/absl/log/internal/log_message.h :a47b:
sIn file included from l/usr/local/clang/include/absl/log/internal/structured_proto.h_:n27u:
lIn file included from l/usr/local/clang/include/absl/log/internal/proto.ha:b34l:
e /usr/local/clang/include/absl/types/span.hc:o212n:s22t:&  warning: vtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension])
;
      |                      ^212
 |   /usr/local/clang/include/absl/base/nullability.hu:s257i:n23g:  pnote: oexpanded from macro 'absl_nullable'i
nt  e257r |  #=d eTf*i naeb salb_snlu_lnlualblialbiltey __uNnuklnloawbnl;e

            | |                      ^                      ^

/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unIn file included from ss2/s2crossing_edge_query.ccp:e18c:
iIn file included from f../src/s2/s2crossing_edge_query.hi:e29d:

In file included from       ../src/s2/r2.h| :                                 ^22
:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2centroids.cc21::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2centroids.h41::
50In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :../src/s2/s2point.h26::
25:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :../src/s2/util/coding/coder.h321::3652:
:In file included from  ../src/s2/base/casts.h:warning: 34type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/log.h:209:
  In file included from 321/usr/local/clang/include/absl/log/internal/log_impl.h | :i22n:
lIn file included from i/usr/local/clang/include/absl/log/internal/log_message.hn:e47 :
LIn file included from o/usr/local/clang/include/absl/log/internal/structured_proto.hg:M27e:
sIn file included from s/usr/local/clang/include/absl/log/internal/proto.ha:g34e:
&/usr/local/clang/include/absl/types/span.h :L213o:g34M:e swarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
ge:  :213o | p e ruastionrg< <c(owncshta_rp_oti*n taebrs l=_ ncuolnlsatb lTe*  va)b s{l
_      n| u                                                   ^l
lab/usr/local/clang/include/absl/base/nullability.hi:l257i:t23y:_ unote: nexpanded from macro 'absl_nullable'k
no  w257n | ;#
d      e| f                                 ^i
ne/usr/local/clang/include/absl/base/nullability.h :a289b:s34l:_ nnote: uexpanded from macro 'absl_nullability_unknown'l
la  b289l | e# d_eNfuilnlea balbes
l      _| n                      ^u
llability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const charIn file included from *s2/s2centroids.cc :a18b:
sIn file included from l../src/s2/s2centroids.h_:n50o:
nIn file included from n../src/s2/s2point.hu:l25l:
 In file included from f../src/s2/util/coding/coder.ha:i36l:
uIn file included from r../src/s2/base/casts.he:_34m:
sIn file included from g/usr/local/clang/include/absl/log/log.h): 209A:
BIn file included from S/usr/local/clang/include/absl/log/internal/log_impl.hL:_22A:
TIn file included from T/usr/local/clang/include/absl/log/internal/log_message.hR:I47B:
UIn file included from T/usr/local/clang/include/absl/log/internal/structured_proto.hE:_27C:
OIn file included from L/usr/local/clang/include/absl/log/internal/proto.hD:;34
:
      | /usr/local/clang/include/absl/types/span.h                              ^:
733:31/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
    733241 |  | c#odnesftienxep ra bSspla_nn<oTn>n uMlalk e_SNpoannn(uTl*l 
a      b| s                     ^l
_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from as2/s2crossing_edge_query.ccb:l18e:
 In file included from _../src/s2/s2crossing_edge_query.hN:u29l:
lIn file included from a../src/s2/r2.hb:l22e:

In file included from       ../src/s2/util/math/vector.h| :                      ^36
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(coIn file included from ns2/s2centroids.ccs:t18 :
cIn file included from h../src/s2/s2centroids.ha:r50*:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 34f:
iIn file included from l/usr/local/clang/include/absl/log/log.he:,209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                                   ^:
22:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::24147::
22In file included from :/usr/local/clang/include/absl/log/internal/structured_proto.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/proto.h:34  :
241 | /usr/local/clang/include/absl/types/span.h#:d739e:f21i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_  n739o | nSnpualnl< T_>N oMnankuelSlp
a      n| (                     ^T
* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  In file included from 257s2/s2crossing_edge_query.cc | :#18d:
eIn file included from f../src/s2/s2crossing_edge_query.hi:n29e:
 In file included from a../src/s2/r2.hb:s22l:
_In file included from n../src/s2/util/math/vector.hu:l36l:
aIn file included from b../src/s2/base/logging.hl:e21 :
_In file included from N/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                      ^:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2centroids.cc  :44618 | :
 In file included from  ../src/s2/s2centroids.hL:o50g:
MIn file included from e../src/s2/s2point.hs:s25a:
gIn file included from e../src/s2/util/coding/coder.hQ:u36i:
eIn file included from t../src/s2/base/casts.hl:y34D:
eIn file included from b/usr/local/clang/include/absl/log/log.hu:g209F:
aIn file included from t/usr/local/clang/include/absl/log/internal/log_impl.ha:l22(:
cIn file included from o/usr/local/clang/include/absl/log/internal/log_message.hn:s47t:
 In file included from c/usr/local/clang/include/absl/log/internal/structured_proto.hh:a27r:
*In file included from  /usr/local/clang/include/absl/log/internal/proto.ha:b34s:
l/usr/local/clang/include/absl/types/span.h_:n740o:n21n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
fil  e740, | 
        |                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    T241* |  #adbesfli_nneu lalbasbll_en oennndu)l ln o_eNxocnenputl l{

            | |                      ^                    ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessIn file included from as2/s2centroids.ccg:e18Q:
uIn file included from i../src/s2/s2centroids.he:t50l:
yIn file included from F../src/s2/s2point.ha:t25a:
lIn file included from (../src/s2/util/coding/coder.hc:o36n:
sIn file included from t../src/s2/base/casts.h :c34h:
aIn file included from r/usr/local/clang/include/absl/log/log.h*: 209a:
bIn file included from s/usr/local/clang/include/absl/log/internal/log_impl.hl:_22n:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hn:u47l:
lIn file included from  /usr/local/clang/include/absl/log/internal/structured_proto.hf:i27l:
eIn file included from ,/usr/local/clang/include/absl/log/internal/proto.h :i34n:
t/usr/local/clang/include/absl/types/span.h :l794i:n8e:, 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                     ^

/usr/local/clang/include/absl/base/nullability.h:241  :79422 | :   note:  expanded from macro 'absl_nonnull' 
T*   241a | b#sdle_fniunlel aabblsel _pntorn nAuBlSlL __ANToTnRnIuBlUlT
E      _| L                     ^I
FETIME_BOIn file included from Us2/s2crossing_edge_query.ccN:D18,:
 In file included from s../src/s2/s2crossing_edge_query.hi:z29e:
_In file included from t../src/s2/r2.h :s22i:
zIn file included from e../src/s2/util/math/vector.h): 36n:
oIn file included from e../src/s2/base/logging.hx:c21e:
pIn file included from t/usr/local/clang/include/absl/log/check.h :{37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h       ^:
21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::41257:
:In file included from 23/usr/local/clang/include/absl/log/internal/strip.h:: 26:
note: /usr/local/clang/include/absl/log/internal/log_message.hexpanded from macro 'absl_nullable':
457:38  :257  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n457e |   a b s l _ n u l l a b l e   _ N u l l a b l e 
       c| o                      ^n
st char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const In file included from Cs2/s2crossing_edge_query.cco:r18d:
RIn file included from e../src/s2/s2crossing_edge_query.hp:*29 :
aIn file included from b../src/s2/r2.hs:l22_:
nIn file included from o../src/s2/util/math/vector.hn:n36u:
lIn file included from l../src/s2/base/logging.h :r21e:
pIn file included from )/usr/local/clang/include/absl/log/check.h;:
37      :
| In file included from                                               ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h323::24146::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 323# | d e ffirniee nadb svlo_indo nAnbuslllF o_rNmoantnFulluls
h      (| S                     ^t
ringifySink* absl_nonnull sIn file included from is2/s2contains_vertex_query.ccn:k18,:

In file included from       ../src/s2/s2contains_vertex_query.h| :                                             ^21
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66241:
:In file included from 22/usr/local/clang/include/absl/container/internal/btree.h:: 73:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:86:
  241/usr/local/clang/include/absl/strings/cord_analysis.h | :#50d:e49f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl   _50n | osninzuel_lt  _GNeotnMnourlelP
r      e| c                     ^i
seMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_In file included from Os2/s2convex_hull_query.ccP:_26S:
TIn file included from R../src/s2/s2convex_hull_query.hI:N25G:
_In file included from E../src/s2/s2cap.hX:T27E:
RIn file included from N../src/s2/base/logging.h(:c22o:
nIn file included from s/usr/local/clang/include/absl/log/log.ht: 209v:
oIn file included from i/usr/local/clang/include/absl/log/internal/log_impl.hd:*20 :
aIn file included from b/usr/local/clang/include/absl/log/absl_vlog_is_on.hs:l63_:
no/usr/local/clang/include/absl/log/internal/vlog_config.hn:n49u:l37l:) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
| ^
/usr/local/clang/include/absl/log/internal/check_op.h   :49450 | :i25n:t  note: Rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
gi  s450t | e r A n d I nxi,t ixa,l iczoen(sVtL ocghSairt*e *a basbls_ln_onnonnunlull)l
       v| )                        ^;

      /usr/local/clang/include/absl/base/nullability.h| :                                    ^241
:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.hs2/s2crossing_edge_query.cc::2018:
:
In file included from In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h../src/s2/s2crossing_edge_query.h::6329:
:
In file included from /usr/local/clang/include/absl/log/internal/vlog_config.h../src/s2/r2.h::6322::
43In file included from :../src/s2/util/math/vector.h :36warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
In file included from    /usr/local/clang/include/absl/log/check.h63: | 37 :
 In file included from e/usr/local/clang/include/absl/log/internal/check_impl.hx:p21l:
i/usr/local/clang/include/absl/log/internal/check_op.hc:i502t: 1c:o nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
ex  p502r |  AVBLSoLg_SLiOtGe_(IcNoTnEsRtN AcLh_aCrH*E CaKb_sOlP__nIoMnPnLu(lClh efc)k
_      E| Q                                          ^,
 ==/usr/local/clang/include/absl/base/nullability.h):
241      :| 22^:
 note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
488:32  :241  | note: #expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'd
efi  n488e |   a bisnll_innoen ncuolnls t_eNxopnrn ucloln
s      t|                       ^c
har* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from as2/s2convex_hull_query.ccb:l26e:
 In file included from _../src/s2/s2convex_hull_query.hN:u25l:
lIn file included from a../src/s2/s2cap.hb:l27e:

In file included from       ../src/s2/base/logging.h| :                      ^22
:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
In file included from /usr/local/clang/include/absl/log/internal/vlog_config.hs2/s2crossing_edge_query.cc::9618::
60In file included from :../src/s2/s2crossing_edge_query.h :29warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/r2.h
:22:
In file included from ../src/s2/util/math/vector.h:   3696:
 | In file included from  ../src/s2/base/logging.h :f21r:
iIn file included from e/usr/local/clang/include/absl/log/check.hn:d37 :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ht: 21l:
o/usr/local/clang/include/absl/log/internal/check_op.hg:_502i:n1t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l/usr/local/clang/include/absl/log/internal/check_op.h:::489R:e47g:i snote: texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
rAn  d489I | n i t i a l iczoen(sVtL oTg1S&i tve1*,  acbosnls_tn oTn2n&u lvl2 ,v )c;o
n      s| t                                                           ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle feixnper taebxstl)_ n{o n n u l l\ 
_      N| o                                              ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, conIn file included from ss2/s2convex_hull_query.cct: 26c:
hIn file included from a../src/s2/s2convex_hull_query.hr:*25 :
aIn file included from b../src/s2/s2cap.hs:l27_:
nIn file included from o../src/s2/base/logging.hn:n22u:
lIn file included from l/usr/local/clang/include/absl/log/log.h :e209x:
pIn file included from r/usr/local/clang/include/absl/log/internal/log_impl.ht:e20x:
tIn file included from )/usr/local/clang/include/absl/log/absl_vlog_is_on.h :{63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 119 : 15 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      119  |   \ 
c      o| n                                  ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nceo nasbts lf_inloen_n;u
l      l|                ^_
Non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOIn file included from Gs2/s2convex_hull_query.cc_:I26N:
TIn file included from E../src/s2/s2convex_hull_query.hR:N25A:
LIn file included from _../src/s2/s2cap.hC:H28E:
CIn file included from K../src/s2/util/coding/coder.h_:O33P:
_In file included from I/usr/local/clang/include/absl/numeric/int128.hM:P41L:
(/usr/local/clang/include/absl/types/compare.hC:h78e:c22k:_ Lwarning: E'enable_if' is a clang extension [-Wgcc-compat],
 <=)
         78|  | ^ 
   /usr/local/clang/include/absl/log/internal/check_op.h : 488_:_32a:t tnote: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
but  e488_ | _ ( (iennlaibnlee _ciofn(snt e=x=p r0 ,c o"nOsntl yc hlairt*e raabls l`_0n`u lilsa ballel onwaemde.#"#)I)m)p l{(} 
        |                       ^ 
              \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:28:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(vIn file included from os2/s2contains_vertex_query.cci:d18*:
 In file included from a../src/s2/s2contains_vertex_query.hb:s21l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 73d:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h): 94c:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hs:t31 :
= /usr/local/clang/include/absl/synchronization/mutex.h0:;489
:      14| :                          ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22: note:   expanded from macro 'absl_nonnull'489
 |     241  |  # d evfoiinde  (a*basbls_ln_onnunlullalb l_eN oinnnvualrli
a      n| t                     ^)
(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2closest_point_query.cc::24118::
22In file included from :../src/s2/s2closest_point_query.h :26note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :_82N:
oIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/crc/crc32c.h      :| 32                     ^:

In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_ifIn file included from (s2/s2contains_vertex_query.ccs:t18r:
_In file included from f../src/s2/s2contains_vertex_query.ho:r21m:
aIn file included from t/usr/local/clang/include/absl/container/btree_map.h_:i66n:
tIn file included from e/usr/local/clang/include/absl/container/internal/btree.hr:n73a:
lIn file included from :/usr/local/clang/include/absl/strings/cord.h::E94n:
sIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hr:e31C:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s641t:e68x:p rwarning: ('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
ormat  )641, | 
        | e          ^x
plicit Mute/usr/local/clang/include/absl/strings/internal/str_format/parser.hx:L229o:c11k:( Mwarning: u'enable_if' is a clang extension [-Wgcc-compat]t
ex&   229m | u   A B S L _ I N T EeRnNaAbLl_eA_TiTfR(IsBtUrT_Ef_oCrAmPaTtU_RiEnDt_eBrYn(atlh:i:sV)a,l
i      d| F                                                                   ^~~~o
rmatImpl<C...>(format),
      |           ^
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu In file included from As2/s2closest_point_query.ccB:S18L:
_In file included from I../src/s2/s2closest_point_query.hN:T26E:
RIn file included from N../src/s2/s1angle.hA:L28_:
AIn file included from T../src/s2/s2point.hT:R27I:
BIn file included from U../src/s2/s2coder.hT:E23_:
CIn file included from A/usr/local/clang/include/absl/status/status.hP:T67U:
RIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hD:_29B:
YIn file included from (/usr/local/clang/include/absl/strings/cord.ht:h82i:
sIn file included from )/usr/local/clang/include/absl/crc/internal/crc_cord_state.h,:
23      :
| In file included from                                                                          ^~~~/usr/local/clang/include/absl/crc/crc32c.h
:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enabl/usr/local/clang/include/absl/synchronization/mutex.he:_689i:f35(:s twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
form  a689t | _ i netxeprlniacli:t: ERnesaudreerCMountsetxeLxopcrk((sM)u,t e"xc*o nasbtselx_pnro ntnrualpl" )m,u
,       | c          ^o
nst Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_n/usr/local/clang/include/absl/strings/internal/str_format/bind.ho:n149n:u22l:l  warning: _'enable_if' is a clang extension [-Wgcc-compat]N
onnu  l149l | 
        |                       ^ 
  __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attributIn file included from es2/s2contains_vertex_query.cc_:_18(:
(In file included from e../src/s2/s2contains_vertex_query.hn:a21b:
lIn file included from e/usr/local/clang/include/absl/container/btree_map.h_:i66f:
(In file included from V/usr/local/clang/include/absl/container/internal/btree.ha:l73i:
dIn file included from F/usr/local/clang/include/absl/strings/cord.ho:r94m:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hI:m31p:
l/usr/local/clang/include/absl/synchronization/mutex.h<:A710r:g74s:. .warning: .'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]>
(s),   "710b | a d  efxoprlmiacti tt rWarpi"t)e)r)M
u      t| e                     ^x
Lock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :241s2/s2closest_point_query.cc::2218::
 In file included from ../src/s2/s2closest_point_query.hnote: :expanded from macro 'absl_nonnull'26
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:o82n:
nIn file included from u/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:l23
:
      In file included from | /usr/local/clang/include/absl/crc/crc32c.h                     ^:
32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |   In file included from  s2/s2contains_vertex_query.cc : 18 :
cIn file included from o../src/s2/s2contains_vertex_query.hn:s21t:
 In file included from s/usr/local/clang/include/absl/container/btree_map.ht:r66_:
fIn file included from o/usr/local/clang/include/absl/container/internal/btree.hr:m73a:
tIn file included from _/usr/local/clang/include/absl/strings/cord.hi:n94t:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hn:a31l:
:/usr/local/clang/include/absl/synchronization/mutex.h::P958a:r50s:e dwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
rma  t958B | a s es*t aatbiscl _bnooonln uClals tpAcn)d
C      a| l                                                   ^l
Met/usr/local/clang/include/absl/base/nullability.hh:o241d:(22c:o nnote: sexpanded from macro 'absl_nonnull't
 C  o241n | d#idteifoinn*e  aabbssll__nnoonnnnuullll  c_)N;o
n      n| u                                                 ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23In file included from :
s2/s2contains_vertex_query.ccIn file included from :/usr/local/clang/include/absl/crc/crc32c.h18::
32In file included from :
../src/s2/s2contains_vertex_query.h:/usr/local/clang/include/absl/strings/str_format.h21::
155In file included from :/usr/local/clang/include/absl/container/btree_map.h36::66 :
In file included from warning: /usr/local/clang/include/absl/container/internal/btree.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]73
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 155/usr/local/clang/include/absl/strings/internal/cordz_info.h | : 31 :
e/usr/local/clang/include/absl/synchronization/mutex.hx:p975l:i31c:i twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
orm  a975t | C o uinntlCianpet uvroei(di nRte*a daCbaslll_bnaocnkn(uTl*l  apb)s l:_ npo_n(npu)l l{ }c
a      l| l                                   ^b
ack/usr/local/clang/include/absl/base/nullability.h): 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'{

      |                                 ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
s  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from In file included from s2/s2contains_vertex_query.cc../src/s2/s2closest_point_query.h::1826:
:
In file included from In file included from ../src/s2/s2contains_vertex_query.h../src/s2/s1angle.h::2128:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2point.h::6627:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2coder.h::7323:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::9467:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/status/internal/status_internal.h::3129:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/strings/cord.h::97982::
43In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :23warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32:
  /usr/local/clang/include/absl/strings/str_format.h979: | 164 : 8s:t awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
c b  o164o | l   Ailnwta*y saTbrsule_(ncoonnnsutl lC oUnnduisteido(n)*  {a brselt_unrunl lpa_b;l e})
       {|         ^r
et/usr/local/clang/include/absl/base/nullability.hu:r241n: 22t:r unote: eexpanded from macro 'absl_nonnull';
 }  
241       | | #                                          ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n257e: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle f_iNnoen naublsll
_      n| u                     ^l
lable _Nullable
      In file included from | s2/s2closest_point_query.cc                      ^:
18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2closest_point_query.cc#:d18e:
fIn file included from i../src/s2/s2closest_point_query.hn:e26 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380In file included from  | s2/s2contains_vertex_query.ccs:t18d:
:In file included from :../src/s2/s2contains_vertex_query.hs:t21r:
iIn file included from n/usr/local/clang/include/absl/container/btree_map.hg:&66 :
SIn file included from t/usr/local/clang/include/absl/container/internal/btree.hr:A73p:
pIn file included from e/usr/local/clang/include/absl/strings/cord.hn:d94F:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hm:a31t:
(/usr/local/clang/include/absl/synchronization/mutex.hs:t1050d::31::s twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ng*  a1050b | s l _bnooonln uWlali tdWsitt,h
T      i| m                                          ^e
out/usr/local/clang/include/absl/base/nullability.h(:M241u:t22e:x *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  maub,s la_bnsoln:n:uDlulr a_tNioonnn utlilm
e      o| u                     ^t
) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::TimIn file included from es2/s2closest_point_query.cc :d18e:
aIn file included from d../src/s2/s2closest_point_query.hl:i26n:
eIn file included from )../src/s2/s1angle.h :{28
:
      In file included from | ../src/s2/s2point.h                               ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241In file included from  | /usr/local/clang/include/absl/strings/cord.h#:d82e:
fIn file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:e23 :
aIn file included from In file included from bs2/s2centroids.cc/usr/local/clang/include/absl/crc/crc32c.hs:l:18_32:
nIn file included from o:
../src/s2/s2centroids.hn:n/usr/local/clang/include/absl/strings/str_format.h50u::
l440In file included from l:../src/s2/s2point.h 24:_:25N o:
warning: nIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n../src/s2/util/coding/coder.hu
:l36l:

In file included from         ../src/s2/base/casts.h440| : |                      ^34i
:
nIn file included from t/usr/local/clang/include/absl/log/log.h :F209P:
rIn file included from i/usr/local/clang/include/absl/log/internal/log_impl.hn:t22F:
(In file included from s/usr/local/clang/include/absl/log/internal/log_message.ht:d53::
:F/usr/local/clang/include/absl/types/source_location.hI:L113E:*19 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from l
s2/s2contains_vertex_query.cc_:n18o:
  nIn file included from 113n../src/s2/s2contains_vertex_query.h | u: l 21 l:
   In file included from o /usr/local/clang/include/absl/container/btree_map.hcu:ot66nps:
tu In file included from ct/usr/local/clang/include/absl/container/internal/btree.h,h: a73cr:
o*nIn file included from  s/usr/local/clang/include/absl/strings/cord.hat:b 94Fs:
lo_In file included from nr/usr/local/clang/include/absl/strings/internal/cordz_info.hom:na31ntuSl:
pl/usr/local/clang/include/absl/synchronization/mutex.h e:fc1088i<l:Ae35_rn:ag smwarning: .etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] .=. 
>_&_  bfu1088oi | r lmt ivaonitd_, FEIn
aLb      El(e| D)e                       ^b)u
 g{L/usr/local/clang/include/absl/base/nullability.h
o:g      241(| :                  ^c22
o:n s/usr/local/clang/include/absl/base/nullability.hnote: t:expanded from macro 'absl_nonnull' 241c
h:a22  r:*241  a | note: b#sexpanded from macro 'absl_nonnull'dl
e_f  in241unl | le# daeafbbisnlle_ eanb onsnalm_en)unl;oln
 n      _u| N                                  ^loln
 n_u/usr/local/clang/include/absl/base/nullability.hNlo:ln257
n:u      l23l| :
                     ^       
| note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25In file included from :
s2/s2closest_point_query.ccIn file included from :../src/s2/util/coding/coder.h18:In file included from :
36s2/s2contains_vertex_query.ccIn file included from :
:../src/s2/s2closest_point_query.hIn file included from 18:../src/s2/base/casts.h:
26:In file included from :
34../src/s2/s2contains_vertex_query.hIn file included from :
:../src/s2/s1angle.hIn file included from 21:/usr/local/clang/include/absl/log/log.h:
28:In file included from :
209/usr/local/clang/include/absl/container/btree_map.hIn file included from :
:../src/s2/s2point.hIn file included from 66:/usr/local/clang/include/absl/log/internal/log_impl.h:
27:In file included from :
22/usr/local/clang/include/absl/container/internal/btree.hIn file included from :
:../src/s2/s2coder.hIn file included from 73:/usr/local/clang/include/absl/log/internal/log_message.h:
23:In file included from :
53/usr/local/clang/include/absl/strings/cord.hIn file included from :
:/usr/local/clang/include/absl/status/status.h94/usr/local/clang/include/absl/types/source_location.h::
:67In file included from 133:
/usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from :25/usr/local/clang/include/absl/status/internal/status_internal.h31:::
 29/usr/local/clang/include/absl/synchronization/mutex.h:
warning: :In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1091/usr/local/clang/include/absl/strings/cord.h
::2682::
   In file included from warning: 133/usr/local/clang/include/absl/crc/internal/crc_cord_state.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | :
 23 :
c In file included from o1091n/usr/local/clang/include/absl/crc/crc32c.h | s:t 32 ebx:
po/usr/local/clang/include/absl/strings/str_format.hor: lc469 o:nW20sati:t  cChoawarning: rmtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m*
 oanb(  Ms469lu | t_inenxo*nt n uaSblNlsPl rf_ininlotenFn_(nuclahmla er(m*u)  taecboxsnl,_sn
to n      nno| ue                         ^xlc
le p/usr/local/clang/include/absl/base/nullability.hot:u {241t
:p      22u| :t                        ^ ,
note:  expanded from macro 'absl_nonnull's/usr/local/clang/include/absl/base/nullability.h
t:d241  ::241:22 | s:#id zenote: feiexpanded from macro 'absl_nonnull'_n
et    asb241is | z#ld_eneof,ni
nn      uel|                     ^la 
_bNso/usr/local/clang/include/absl/base/nullability.hln_:nnoun241lnl:u
l22l      : | _                      ^N
onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine abslIn file included from _s2/s2contains_vertex_query.ccn:o18n:
nIn file included from u../src/s2/s2contains_vertex_query.hl:l21 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.ho:In file included from n66s2/s2centroids.ccn:
:uIn file included from 18l/usr/local/clang/include/absl/container/internal/btree.h:
l:In file included from 
73../src/s2/s2centroids.h      :
:| In file included from 50                     ^/usr/local/clang/include/absl/strings/cord.h:

:In file included from 94../src/s2/s2point.h:
:In file included from 25/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/util/coding/coder.h:
:36/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1093../src/s2/base/casts.h::4634::
 In file included from /usr/local/clang/include/absl/log/log.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22 :
1093In file included from  | /usr/local/clang/include/absl/log/internal/log_message.h : 53v:
o/usr/local/clang/include/absl/types/source_location.hi:d142 :R25e:m owarning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(bas  e142_ | i n tceornnsatle:x:pPre rcTohnrseta dcShyanrc*h *a basbls_ln_onnonnunlull lf usn)cIn file included from ;ts2/s2closest_point_query.cc
i:      o18| n:
_                                             ^In file included from n
../src/s2/s2closest_point_query.ha:m26e/usr/local/clang/include/absl/base/nullability.h:
(:In file included from )241../src/s2/s1angle.h ::c2228o:n:
s tIn file included from note:  ../src/s2/s2point.hexpanded from macro 'absl_nonnull'n:
o27e:
x  In file included from c241../src/s2/s2coder.he | :p#23td:
 eIn file included from {f/usr/local/clang/include/absl/status/status.hi
:n      67e| :
                         ^In file included from a
b/usr/local/clang/include/absl/status/internal/status_internal.hs:/usr/local/clang/include/absl/base/nullability.hl29:_:
241nIn file included from :o/usr/local/clang/include/absl/strings/cord.h22n::n82 u:
note: lIn file included from expanded from macro 'absl_nonnull'l/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
 :_23  N:
241oIn file included from  | n/usr/local/clang/include/absl/crc/crc32c.h#n:ud32elf:
li/usr/local/clang/include/absl/strings/str_format.h
n:      e503|  :                     ^a20
b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u503l | l   _FNoornmnautlRla
w      S| i                     ^n
k(T* absl_nonnull raw)In file included from  s2/s2centroids.cc :/18/:
 In file included from N../src/s2/s2centroids.hO:L50I:
NIn file included from T../src/s2/s2point.h
:      25| :
                   ^In file included from 
../src/s2/util/coding/coder.h:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/casts.h241::3422:
:In file included from  /usr/local/clang/include/absl/log/log.h:note: 209expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:  22241:
 | In file included from #/usr/local/clang/include/absl/log/internal/log_message.hd:e53f:
i/usr/local/clang/include/absl/types/source_location.hn:e150 :a40b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u150l | l   _ N o n n u l l 
        |                       ^ 
             const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2contains_vertex_query.ccn:n18u:
lIn file included from l../src/s2/s2contains_vertex_query.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MIn file included from us2/s2centroids.cct:e18x:
LIn file included from o../src/s2/s2centroids.hc:k50M:
aIn file included from y../src/s2/s2point.hb:e25(:
MIn file included from u../src/s2/util/coding/coder.ht:e36x:
*In file included from  ../src/s2/base/casts.ha:b34s:
lIn file included from _/usr/local/clang/include/absl/log/log.hn:u209l:
lIn file included from a/usr/local/clang/include/absl/log/internal/log_impl.hb:l22e:
 In file included from m/usr/local/clang/include/absl/log/internal/log_message.hu:)53
:
      | /usr/local/clang/include/absl/types/source_location.h                                 ^:
165:15:/usr/local/clang/include/absl/base/nullability.h :257warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
: note:   expanded from macro 'absl_nullable'165
 |     257c | o#ndsetf icnhea ra*b salb_snlu_lnloanbnluel l_ Nfuilllea_bnlaem
e      _|                        ^=
 "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2contains_vertex_query.ccn:o18n:
nIn file included from u../src/s2/s2contains_vertex_query.hl:l21 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl:
73      :
| In file included from                      ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2contains_vertex_query.ccs2/s2centroids.cc::1818:
:
In file included from In file included from ../src/s2/s2contains_vertex_query.h../src/s2/s2centroids.h::2150:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2point.h::6625:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/util/coding/coder.h::7336:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/casts.h::9434:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/log.h::31209:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/log_impl.h::114622::
7:/usr/local/clang/include/absl/log/internal/log_message.h :78warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]26
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1146 |       78  |     tLhoigsM)e)s sAaBgSeL(_cEoXnCsLtU ScIhVaEr_*L OaCbKs_lF_UnNoCnTnIuOlNl( mfui)l
e      ,|        ^~~~i
nt line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_no/usr/local/clang/include/absl/synchronization/mutex.hn:n1153u:l39l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu l1153l | 
        | e                     ^x
plicit ReleasableMutexLock(Mutex* abIn file included from ss2/s2centroids.ccl:_18n:
oIn file included from n../src/s2/s2centroids.hn:u50l:
lIn file included from  ../src/s2/s2point.hm:u25):

In file included from       ../src/s2/util/coding/coder.h| :                                      ^36
:
In file included from ../src/s2/base/casts.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :/usr/local/clang/include/absl/log/log.h22::209 :
In file included from note: /usr/local/clang/include/absl/log/internal/log_impl.hexpanded from macro 'absl_nonnull':
22:
  /usr/local/clang/include/absl/log/internal/log_message.h241: | 80#:d26e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab   s80l | _ n oLnonguMlels s_aNgoen(ncuolnls
t       | c                     ^h
ar* absl_nonnull file, int line,
      |                          ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2contains_vertex_query.cc::24118::
22In file included from :../src/s2/s2contains_vertex_query.h :21note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66  :
241In file included from  | /usr/local/clang/include/absl/container/internal/btree.h#:d73e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n1158n:u53l:l  warning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
onnu l1158l | 
        |                       ^ 
  Mutex& mu ABSL_INTERNAL_AIn file included from Ts2/s2centroids.ccT:R18I:
BIn file included from U../src/s2/s2centroids.hT:E50_:
CIn file included from A../src/s2/s2point.hP:T25U:
RIn file included from E../src/s2/util/coding/coder.hD:_36B:
YIn file included from (../src/s2/base/casts.ht:h34i:
sIn file included from )/usr/local/clang/include/absl/log/log.h,:
209      :
| In file included from                                                     ^~~~/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const/usr/local/clang/include/absl/synchronization/mutex.h :c1166h:a39r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n o1166n | n u lelx pfliilcei,t  iRnetl elaisnaeb,l
e      M| u                         ^t
ex/usr/local/clang/include/absl/base/nullability.hL:o241c:k22(:M uIn file included from note: ts2/s2closest_point_query.ccexpanded from macro 'absl_nonnull'e:x
18*:
   In file included from 241a../src/s2/s2closest_point_query.hb | :s#26ld:
_eIn file included from nf../src/s2/s1angle.hio:nn28ne:
u In file included from la../src/s2/s2point.hbl:s 27ml:
u_In file included from ,n../src/s2/s2coder.h o:cn23no:
nuIn file included from lsl/usr/local/clang/include/absl/status/status.h t:_ 67CN:
ooIn file included from nn/usr/local/clang/include/absl/status/internal/status_internal.hdn:iu29lt:
ilIn file included from o
/usr/local/clang/include/absl/strings/cord.hn      :&| 82                      ^:
c
In file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:d23):

In file included from       /usr/local/clang/include/absl/crc/crc32c.h| :                                      ^32
:
/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/base/nullability.h::860241::4322::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 |   #860d | e f ifnrei eanbds lv_oniodn nAublsll F_oNromnantuFlllu
s      h| (                     ^F
ormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2contains_vertex_query.cca:b18s:
lIn file included from _../src/s2/s2contains_vertex_query.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66 :
_In file included from N/usr/local/clang/include/absl/container/internal/btree.ho:n73n:
uIn file included from In file included from l/usr/local/clang/include/absl/strings/cord.hs2/s2centroids.ccl::
9418      :
:
| In file included from In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2centroids.h
::3150:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2point.h::117925::
10In file included from :../src/s2/util/coding/coder.h :36warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/casts.h:34:
 In file included from 1179/usr/local/clang/include/absl/log/log.h | : 209 :
MIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.ht:e22x:
*In file included from /usr/local/clang/include/absl/log/internal/log_message.h s2/s2closest_point_query.cc:a:b11918s:l:
41_In file included from :n../src/s2/s2closest_point_query.h u:warning: l26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
a
bIn file included from l../src/s2/s1angle.he:   28119m:
u | _In file included from  ; ../src/s2/s2point.hL
:o      g27M| :
e         ^sIn file included from s
../src/s2/s2coder.ha:g/usr/local/clang/include/absl/base/nullability.h23e::
&257 In file included from :T/usr/local/clang/include/absl/status/status.h23o::S67i :
nIn file included from note: k/usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nullable'A:
l29s:
  oIn file included from 257(/usr/local/clang/include/absl/strings/cord.ha | b:s#82dl:
:eIn file included from :f/usr/local/clang/include/absl/crc/internal/crc_cord_state.hiL:on23ge:
 SIn file included from ai/usr/local/clang/include/absl/crc/crc32c.hbn:sk32l*:
 _/usr/local/clang/include/absl/strings/str_format.han:ub867ls:ll_60na:bo nlnewarning:  utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_l
lN uslil  nak867b) | ;l e
 
      e      | x|                                         ^                      ^p

li/usr/local/clang/include/absl/base/nullability.hc:i241t: 22F:o rnote: mexpanded from macro 'absl_nonnull'a
tS  i241n | k#(dsetfri_nfeo rambastl__innotnenrunlall :_:NFoonrnmualtlS
i      n| k                     ^I
mpl* absl_nonnull s)
      |                                                            ^In file included from 
s2/s2centroids.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2centroids.h::2250::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from ../src/s2/util/coding/coder.h  :24136 | :
#In file included from d../src/s2/base/casts.he:f34i:
nIn file included from e/usr/local/clang/include/absl/log/log.h :a209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h_:n22o:
n/usr/local/clang/include/absl/log/internal/log_message.hn:u121l:l41 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l121
 |        |                       ^L
ogMessage& ToSinkOnly(abslIn file included from :s2/s2closest_point_query.cc::L18o:
gIn file included from S../src/s2/s2closest_point_query.hi:n26k:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
sIn file included from i/usr/local/clang/include/absl/status/status.hn:k67):
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                        ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h82::
241In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h22::23 :
In file included from note: /usr/local/clang/include/absl/crc/crc32c.hexpanded from macro 'absl_nonnull':
32:
  /usr/local/clang/include/absl/strings/str_format.h241: | 869#:d40e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s869l | _ n osntnru_lflo r_mNaotn_niunltle
r      n| a                     ^l
::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absIn file included from ls2/s2contains_vertex_query.cc_:n18u:
lIn file included from l../src/s2/s2contains_vertex_query.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.h :v66):
 In file included from {/usr/local/clang/include/absl/container/internal/btree.h
:      73| :
                               ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/strings/internal/cordz_info.h::2331::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nullable'1212
:52:   257 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin e1212  | abbosoll_ nCuolnldaibtlieo n_:N:uClalsatbAlned
C      a| l                      ^l
Method(const ConditionIn file included from *s2/s2centroids.cc :a18b:
sIn file included from l../src/s2/s2centroids.h_:n50o:
nIn file included from n../src/s2/s2point.hu:l25l:
 In file included from c../src/s2/util/coding/coder.h): 36{:

In file included from       ../src/s2/base/casts.h| :                                                   ^34
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/log.h::241209::
22In file included from :/usr/local/clang/include/absl/log/internal/log_impl.h :22note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/log_message.h
:161:  38241: |  #warning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
fin  e161  | a b sLlo_gnMoensnsualgle &_ Noopnenrualtlo
r      <| <                     ^(
const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NulIn file included from ls2/s2contains_vertex_query.cca:b18l:
eIn file included from 
../src/s2/s2contains_vertex_query.h      :| 21                      ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2centroids.cca:b18s:
lIn file included from _../src/s2/s2centroids.hn:o50n:
nIn file included from u../src/s2/s2point.hl:l25 :
_In file included from N../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl:
34      :
| In file included from                      ^/usr/local/clang/include/absl/log/log.h
:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2contains_vertex_query.cc::25718::
23In file included from :../src/s2/s2contains_vertex_query.h :21note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66  :
257In file included from  | /usr/local/clang/include/absl/container/internal/btree.h#:d73e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l1230l:a12b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nul l1230a | b l e 
       b| o                      ^o
l (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2centroids.cc::2218::
 In file included from ../src/s2/s2centroids.hnote: :expanded from macro 'absl_nonnull'50
:
In file included from ../src/s2/s2point.h  :24125 | :
#In file included from d../src/s2/util/coding/coder.he:f36i:
nIn file included from e../src/s2/base/casts.h :a34b:
sIn file included from l/usr/local/clang/include/absl/log/log.h_:n209o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hu:l22l:
 /usr/local/clang/include/absl/log/internal/log_message.h_:N190o:n42n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  190 |   LIn file included from os2/s2contains_vertex_query.ccg:M18e:
sIn file included from s../src/s2/s2contains_vertex_query.ha:g21e:
&In file included from  /usr/local/clang/include/absl/container/btree_map.ho:p66e:
rIn file included from a/usr/local/clang/include/absl/container/internal/btree.ht:o73r:
<In file included from </usr/local/clang/include/absl/strings/cord.h(:s94t:
dIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h::o31s:
t/usr/local/clang/include/absl/synchronization/mutex.hr:e1230a:m34&:  (warning: *type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
bsl _1230n | o n n u lblo oml) ((s*tadb:s:lo_sntornenauml&l  ofsu)n)c;)
(      T| *                                         ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:22n:u lnote: lexpanded from macro 'absl_nonnull'a
bi  l241i | t#yd_eufniknneo wanb)s,l
_      n| o                                 ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l289 :_34N:o nnote: nexpanded from macro 'absl_nullability_unknown'u
ll
        289|  |                      ^#
define absl_nullability_unknown _NullIn file included from _s2/s2centroids.ccu:n18s:
pIn file included from e../src/s2/s2centroids.hc:i50f:
iIn file included from e../src/s2/s2point.hd:
25      :
| In file included from                                  ^../src/s2/util/coding/coder.h
:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:In file included from 43s2/s2contains_vertex_query.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2contains_vertex_query.h
:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:  66191:
 | In file included from  /usr/local/clang/include/absl/container/internal/btree.h :L73o:
gIn file included from M/usr/local/clang/include/absl/strings/cord.he:s94s:
aIn file included from g/usr/local/clang/include/absl/strings/internal/cordz_info.he:&31 :
o/usr/local/clang/include/absl/synchronization/mutex.hp:e1231r:a8t:o rwarning: <type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]<
(s t1231d | : : i o sT_*b aasbes&l _(n*ualblsalb_inlointnyu_luln kmn)o(wsnt da:r:gi)o
s      _| b       ^a
se/usr/local/clang/include/absl/base/nullability.h&: 289o:s34):) ;note: 
expanded from macro 'absl_nullability_unknown'      
|                                           ^
  289 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibniel iatbys_lu_nnkonnonwunl l_ N_uNloln_nuunlslp
e      c| i                     ^f
ied
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.hIn file included from :s2/s2contains_vertex_query.cc36::
18In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2contains_vertex_query.h34::
21In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h209::
66In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h22::
73:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :/usr/local/clang/include/absl/strings/cord.h306::943:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/synchronization/mutex.h:1242:44  :306  | warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
abs l1242_ | n o n n utlylp esntadm:e: uanbisqlu:e:_tpytpre<_LiodgeMnetsistayg<eTD>a:t:at>y pdea*t aa_b;s
l      _| n  ^u
lla/usr/local/clang/include/absl/base/nullability.hb:i241l:i22t:y _note: uexpanded from macro 'absl_nonnull'n
kn  o241w | n#
d      e| f                                           ^i
ne/usr/local/clang/include/absl/base/nullability.h :a289b:s34l:_ nnote: oexpanded from macro 'absl_nullability_unknown'n
nu  l289l |  #_dNeofninnuel la
b      s| l                     ^_
nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2contains_vertex_query.cc      :| 18                     ^:

In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src,In file included from  s2/s2centroids.ccs:t18d:
:In file included from :../src/s2/s2centroids.hs:t50r:
iIn file included from n../src/s2/s2point.hg:*25 :
aIn file included from b../src/s2/util/coding/coder.hs:l36_:
nIn file included from o../src/s2/base/casts.hn:n34u:
lIn file included from l/usr/local/clang/include/absl/log/log.h :d209s:
tIn file included from )/usr/local/clang/include/absl/log/internal/log_impl.h;:
22      :
| /usr/local/clang/include/absl/log/internal/log_message.h                                                    ^:
454:38: /usr/local/clang/include/absl/base/nullability.h:warning: 241:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
454 |     241L | o#gdMeefsisnaeg eaQbusile_tnloynFnautlall (_cNoonnsntu lclh
a      r| *                     ^ 
absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2contains_vertex_query.cc:18  :
241In file included from  | ../src/s2/s2contains_vertex_query.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/container/btree_map.hn:e66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l73_:
n/usr/local/clang/include/absl/strings/cord.ho:n110n:u55l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onnu  l110l | 
v      o| i                     ^d
 AppendCordToString(constIn file included from  s2/s2centroids.ccC:o18r:
dIn file included from &../src/s2/s2centroids.h :s50r:
cIn file included from ,../src/s2/s2point.h :s25t:
dIn file included from :../src/s2/util/coding/coder.h::s36t:
rIn file included from i../src/s2/base/casts.hn:g34*:
 In file included from a/usr/local/clang/include/absl/log/log.hb:s209l:
_In file included from n/usr/local/clang/include/absl/log/internal/log_impl.ho:n22n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l456 :d38s:t )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                       ^
  456 | /usr/local/clang/include/absl/base/nullability.h : 241L:o22g:M enote: sexpanded from macro 'absl_nonnull's
ag  e241Q | u#ideetfliynFea taabls(lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2coords.cco:n18n:
In file included from u../src/s2/s2coords.hl:l105 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h  :11321 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from c/usr/local/clang/include/absl/container/internal/btree.ho:n73s:
t/usr/local/clang/include/absl/strings/cord.h :c999h:a28r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n999o | n n u l lv ofiidl eC_onpaymTeo A=r r_a_yb(ucihlatri*n _aFbIsLlE_(n)o)n n{u
l      l|                    ^d
st)/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t ;note: 
expanded from macro 'absl_nonnull'      
|                            ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from In file included from s2/s2coords.ccs2/s2contains_vertex_query.cc::1818:
:
In file included from In file included from ../src/s2/s2coords.h../src/s2/s2contains_vertex_query.h::10521:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/btree_map.h::2166:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/btree.h::3773:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/cord.h::211012:
:In file included from 37/usr/local/clang/include/absl/log/internal/check_op.h:: 41:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/strip.h
:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h :101253 | :
 /usr/local/clang/include/absl/types/source_location.h : 133 :a25b:s lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
cord  _133i | n t ecronnaslt:e:xCporr dczoInnsfto *c haabrs*l _anbuslll_anbolnen uclolr dfzi_lien_fnoa(m)e (c)o ncsotn s{t
       n| o                                    ^e
xc/usr/local/clang/include/absl/base/nullability.he:p257t: 23{:
       | note:                         ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea balbes l__Nnuolnlnaubllle 
_      N| o                      ^n
null
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18In file included from :
s2/s2coords.ccIn file included from :../src/s2/s2contains_vertex_query.h18::
21In file included from :
../src/s2/s2coords.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h105::
66In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h21::
73In file included from :
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::371017:
:In file included from 51/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h :101726 | :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 53v:
o/usr/local/clang/include/absl/types/source_location.hi:d142 :s25e:t _warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
rdz  _142i | n f oc(ocnosrtde_xipnrt ecronnaslt: :cChoarrd*z Ianbfsol*_ naobnsnlu_lnlo nfnuunlclt icoonr_dnza_mien(f)o )c o{n
s      t|                                                    ^n
oe/usr/local/clang/include/absl/base/nullability.hx:c241e:p22t:  {note: 
expanded from macro 'absl_nonnull'      
|                         ^  
/usr/local/clang/include/absl/base/nullability.h:241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
bsl_nonnull _NoIn file included from ns2/s2contains_vertex_query.ccn:u18l:
lIn file included from 
../src/s2/s2contains_vertex_query.h      :| 21                     ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NIn file included from es2/s2coords.ccw:E18x:
tIn file included from e../src/s2/s2coords.hr:n105a:
lIn file included from R../src/s2/base/logging.he:p21(:
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37::
:In file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:r21i:
nIn file included from g/usr/local/clang/include/absl/log/internal/check_op.h_:v41i:
eIn file included from w/usr/local/clang/include/absl/log/internal/strip.h :d26a:
t/usr/local/clang/include/absl/log/internal/log_message.ha:,121
:      41| :         ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:   note: 121expanded from macro 'absl_nonnull' | 
    L241o | g#Mdeesfsiangee &a bTsolS_innoknOnnullyl( a_bNsoln:n:uLlolg
S      i| n                     ^k
* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2coords.ccu:l18l:

In file included from       ../src/s2/s2coords.h| :                     ^105
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  vIn file included from )s2/s2contains_vertex_query.cc :{18
:
      In file included from | ../src/s2/s2contains_vertex_query.h                                     ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::25766::
23In file included from :/usr/local/clang/include/absl/container/internal/btree.h :73note: :
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/strings/cord.h:1183  :25747 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine  1183a | b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
           CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | iIn file included from ns2/s2coords.ccl:i18n:
eIn file included from  ../src/s2/s2coords.hv:o105i:
dIn file included from  ../src/s2/base/logging.hC:o21r:
dIn file included from :/usr/local/clang/include/absl/log/check.h::I37n:
lIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21R:
eIn file included from p/usr/local/clang/include/absl/log/internal/check_op.h:::41S:
wIn file included from a/usr/local/clang/include/absl/log/internal/strip.hp:(26C:
o/usr/local/clang/include/absl/log/internal/log_message.hr:d191:::43I:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
eRep  *191  | a b sLlo_gnMoensnsualgle &r hosp)e r{a
t      o| r                                                   ^<
<(s/usr/local/clang/include/absl/base/nullability.ht:d241:::22i:o snote: _expanded from macro 'absl_nonnull'b
as  e241& |  #(d*eafbisnle_ naobnsnlu_lnlo nmn)u(lslt d_:N:oinonsu_lbla
s      e| &                     ^ 
os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_In file included from ns2/s2centroids.cco:n18n:
uIn file included from l../src/s2/s2centroids.hl: 50r:
eIn file included from p../src/s2/s2point.h,:
25      :
| In file included from                                                   ^../src/s2/util/coding/coder.h
:36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/casts.h::24136::
22In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/check.h:37  :
241In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
fi/usr/local/clang/include/absl/log/internal/check_op.hn:e180 :a42b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnul  l180  | _ANBoSnLn_uAlTlT
R      I| B                     ^U
TE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2contains_vertex_query.cc241: | 18#:
dIn file included from e../src/s2/s2contains_vertex_query.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o73n:
n/usr/local/clang/include/absl/strings/cord.hu:l1282l: 47_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
       1282|  |                      ^i
nline void In file included from Cs2/s2centroids.cco:r18d:
:In file included from :../src/s2/s2centroids.hI:n50l:
iIn file included from n../src/s2/s2point.he:R25e:
pIn file included from :../src/s2/util/coding/coder.h::S36e:
tIn file included from T../src/s2/base/casts.hr:e36e:
(In file included from C../src/s2/base/logging.ho:r21d:
RIn file included from e/usr/local/clang/include/absl/log/check.hp:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n181n:u25l:l  warning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
p,
        | 181                                              ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'a
bs  l241: | :#Sdteaftiunse*  aabbssll__nnoonnnnuullll  _sNtoantnuusl,l 
c      o| n                     ^s
t char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:In file included from 66s2/s2centroids.cc:
:In file included from 18/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73../src/s2/s2centroids.h:
:50/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1290../src/s2/s2point.h::5425::
 In file included from ../src/s2/util/coding/coder.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]36
:
In file included from ../src/s2/base/casts.h:36 :
1290In file included from  | ../src/s2/base/logging.hi:n21l:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37v:
oIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hd: 21C:
o/usr/local/clang/include/absl/log/internal/check_op.hr:d181:::58I:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
eRe  p181: | : S e t TcroenesOtr Eambpstly:(:CSotradtRuesp**  aabbssll__nnounlnlualbll es traetpu,s
,       | c                                                     ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 257c:h23a:r *note:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  parbesfli_xn)u;l
l      a| b                                                         ^l
e /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e

      |                         ^241
 | #define absl_nonnull _NonnulIn file included from ls2/s2coords.cc
:      18| :
                     ^In file included from 
../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2centroids.cc:18:
In file included from   ../src/s2/s2centroids.h306: | 50 :
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 36s:
tIn file included from d../src/s2/base/logging.h:In file included from ::s2/s2contains_vertex_query.ccu21:n:
i18In file included from q:
/usr/local/clang/include/absl/log/check.huIn file included from :e../src/s2/s2contains_vertex_query.h37_::
p21In file included from t:
/usr/local/clang/include/absl/log/internal/check_impl.hrIn file included from :</usr/local/clang/include/absl/container/btree_map.h21L::
o66/usr/local/clang/include/absl/log/internal/check_op.hg:
:MIn file included from 189e/usr/local/clang/include/absl/container/internal/btree.h:s:28s73:a:
 g/usr/local/clang/include/absl/strings/cord.hwarning: e:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]D1301
a:t56a:  > 189  | warning: ditype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]an
tlai_n ;e1301
  |       ci| on  ^nl
sitn ea/usr/local/clang/include/absl/base/nullability.hb :vs241ol::i22:d:S  tCnote: aoexpanded from macro 'absl_nonnull'tr
uds:  *:241 I | an#bldseilnf_einRnoeenp n:au:blCslol m_AmnsioStntTnaruteluels( (c_coNononsnstnt u Claolbr
sd      lR| :e                     ^:p
S*t aatbussl&_ nsu)l l{a
b      l| e                           ^ 
ol/usr/local/clang/include/absl/base/nullability.hd:_241r:e22p:, 
note:       expanded from macro 'absl_nonnull'| 
                                                       ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |   In file included from  s2/s2centroids.cc : 18 :
 In file included from  ../src/s2/s2centroids.h : 50 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21C:
o/usr/local/clang/include/absl/log/internal/check_op.hr:d193R:e21p:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o193n | ncuolnls tr eapb,s
l      :| :                                                 ^S
ta/usr/local/clang/include/absl/base/nullability.ht:u241s:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf iAnseS taabtsuls_(ncoonnnsutl la b_sNlo:n:nSutlalt
u      s| O                     ^r
<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline In file included from as2/s2centroids.ccb:s18l:
:In file included from :../src/s2/s2centroids.hc:o50r:
dIn file included from _../src/s2/s2point.hi:n25t:
eIn file included from r../src/s2/util/coding/coder.hn:a36l:
:In file included from :../src/s2/base/casts.hC:o36r:
dIn file included from R../src/s2/base/logging.he:p21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
a/usr/local/clang/include/absl/log/internal/check_op.hb:l202e: 46C:o rwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:Inl  i202n | e R eepx:p:lcilceiatr (C)h e{c
k      O| p                                     ^M
ess/usr/local/clang/include/absl/base/nullability.ha:g257e:B23u:i lnote: dexpanded from macro 'absl_nullable'e
r(  c257o | n#sdte fcihnaer *a basbls_ln_unlolnanbullel  _eNxuplrltaebxlte)
;      
|                             ^| 
                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from In file included from ../src/s2/s2centroids.hs2/s2contains_vertex_query.cc::5018:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2contains_vertex_query.h::2521:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/container/btree_map.h::3666:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/container/internal/btree.h::3673:
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/cord.h::211321:
:In file included from 48/usr/local/clang/include/absl/log/check.h:: 37:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h: 2091321: | 15i:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e v  o209i | d   Ccoornds:t: Icnhlairn*e Raebps:l:_CnoopnynTuolAlr rNaeyw(Scthrairn*g (a)b;s
l      _| n              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22d:s tnote: )expanded from macro 'absl_nonnull' 
co  n241s | t# d{e
f      i| n                                               ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLIn file included from Is2/s2contains_vertex_query.ccN:E18;:

In file included from       ../src/s2/s2contains_vertex_query.h| :                              ^21
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66241:
:In file included from 22/usr/local/clang/include/absl/container/internal/btree.h:: 73:
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:1505:  41241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine  1505a | bisnll_innoen nvuolild  _CNoorndn:u:lClo
p      y| T                     ^o
ArrayImpl(char* absl_nonnull dst) const {In file included from 
s2/s2centroids.cc      :| 18                                        ^:

In file included from ../src/s2/s2centroids.h:50/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2225::
 In file included from ../src/s2/util/coding/coder.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from ../src/s2/base/casts.h  :24136 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u432l:l13 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l432
 |       c| o                     ^n
st char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2contains_vertex_query.ccl:_18n:
oIn file included from n../src/s2/s2contains_vertex_query.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l73l:

      /usr/local/clang/include/absl/strings/cord.h| :                     ^1514
:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2centroids.cc1514: | 18 :
 In file included from  ../src/s2/s2centroids.h :c50o:
rIn file included from d../src/s2/s2point.h_:i25n:
tIn file included from e../src/s2/util/coding/coder.hr:n36a:
lIn file included from :../src/s2/base/casts.h::C36o:
rIn file included from d../src/s2/base/logging.hR:e21p:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l433l: 56t:r ewarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
        | 433                            ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u lclo
n      s| t                     ^ 
char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from In file included from s2/s2contains_vertex_query.cc../src/s2/util/coding/coder.h::1836:
:
In file included from In file included from ../src/s2/s2contains_vertex_query.h../src/s2/base/casts.h::2136:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/base/logging.h::6621:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/check.h::7337:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_impl.h::152521::
29:/usr/local/clang/include/absl/log/internal/check_op.h :451warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1
: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1525
 |       451c | oArBdS_Li_nLtOeGr_nIaNlT:E:RCNoArLd_RDeEpF*I NaEb_sMlA_KnEo_nCnHuElClK _tOrPe_eS)T R{I
N      G| _                            ^E
XTE/usr/local/clang/include/absl/base/nullability.hR:N241(:b22o:o lnote: )expanded from macro 'absl_nonnull';

      |   ^241
 | #d/usr/local/clang/include/absl/log/internal/check_op.he:f449i:n31e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_n  o449n | n u lelx t_eNronn ntuelmlp
l      a| t                     ^e
 const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from In file included from s2/s2contains_vertex_query.cc../src/s2/s2centroids.h::1850:
:
In file included from In file included from ../src/s2/s2contains_vertex_query.h../src/s2/s2point.h::2125:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/util/coding/coder.h::6636:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/base/casts.h::7336:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/logging.h::153021::
55In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h :1530451 | :i1n:l iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 C/usr/local/clang/include/absl/log/internal/check_op.ho:r450d::25::C hnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
kI  t450e | r a t o r : :xC,h uxn,k Ictoenrsatt ocrh(acro*n satb sClo_rndo*n naublsll)_
n      o| n                        ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241c:o22r:d )note:  expanded from macro 'absl_nonnull'{

      |                                                         ^241
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
In file included from       s2/s2contains_vertex_query.cc| :                        ^18
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2contains_vertex_query.h::24121::
22In file included from :/usr/local/clang/include/absl/container/btree_map.h :66note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:73  :
241 | /usr/local/clang/include/absl/strings/cord.h#:d1666e:f48i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_ n1666o | ninnulliln e_ NCoonrndu lClo
r      d| :                     ^:
AdvanceAndRead(CharIterator* aIn file included from bs2/s2centroids.ccs:l18_:
nIn file included from o../src/s2/s2centroids.hn:n50u:
lIn file included from l../src/s2/s2point.h :i25t:
,In file included from 
../src/s2/util/coding/coder.h      :| 36                                               ^:

In file included from ../src/s2/base/casts.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/logging.h::2221::
 In file included from /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nonnull'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e457f:i1n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n457o | nAnBuSlLl_ L_ONGo_nInNuTlElR
N      A| L                     ^_
DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern In file included from ts2/s2contains_vertex_query.cce:m18p:
lIn file included from a../src/s2/s2contains_vertex_query.ht:e21 :
cIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:s66t:
 In file included from c/usr/local/clang/include/absl/container/internal/btree.hh:a73r:
*/usr/local/clang/include/absl/strings/cord.h :a1672b:s41l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null  1672M | aiknelCihneec kvOopiSdt rCionrgd(: : A d\v
a      n| c                              ^e
(C/usr/local/clang/include/absl/base/nullability.hh:a241r:I22t:e rnote: aexpanded from macro 'absl_nonnull't
or  *241  | a#bdself_innoen naublsll _into,n nsuilzle __tN onn_nbuyltle
s      )|                       ^{

      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2centroids.cc::2218::
 In file included from ../src/s2/s2centroids.hnote: :expanded from macro 'absl_nonnull'50
:
In file included from ../src/s2/s2point.h  :24125 | :
#In file included from d../src/s2/util/coding/coder.he:f36i:
nIn file included from e../src/s2/base/casts.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l457l:
1      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from In file included from ../src/s2/base/logging.h:s2/s2coords.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2coords.h37::
105In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/base/logging.h21::
21/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 458/usr/local/clang/include/absl/log/check.h::137::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41  :
458In file included from  | /usr/local/clang/include/absl/log/internal/strip.hA:B26S:
L_/usr/local/clang/include/absl/log/internal/log_message.hL:O319G:_20I:N Twarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
NAL_  D319E | F I N E _cMoAnKsEt_ CwHcEhCaKr__OtP*_ SaTbRsIlN_Gn_uElXlTaEbRlNe( ccoonnsstt &s tvd):;:
s      t| r                   ^i
ng&/usr/local/clang/include/absl/base/nullability.h):;257
:      23| :^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/check_op.h
:449:  31257: |  #note: dexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
fin  e449  | a b selx_tneurlnl atbelmep l_aNtuel lcaobnlset
       c| h                      ^a
r* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2coords.cce: 18a:
bIn file included from s../src/s2/s2coords.hl:_105n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.h_:N37o:
nnIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | iIn file included from ns2/s2centroids.ccl:i18n:
eIn file included from  ../src/s2/s2centroids.hL:o50g:
MIn file included from e../src/s2/s2point.hs:s25a:
gIn file included from e../src/s2/util/coding/coder.h&: 36L:
oIn file included from g../src/s2/base/casts.hM:e36s:
sIn file included from a../src/s2/base/logging.hg:e21::
:In file included from o/usr/local/clang/include/absl/log/check.hp:e37r:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.ho:r21<:
</usr/local/clang/include/absl/log/internal/check_op.h(:w458c:h1a:r _warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s450l:_25n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
ble   450v | )   { 
        |                                                     ^x
, x/usr/local/clang/include/absl/base/nullability.h,: 257c:o23n:s tnote:  expanded from macro 'absl_nullable'c
ha  r257* |  #adbesfli_nneo nanbuslll_)n
u      l| l                        ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241_:N22u:l lnote: aexpanded from macro 'absl_nonnull'b
le  
241       | | #                      ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_vieIn file included from ws2/s2coords.cc&:)18;:

In file included from       ../src/s2/s2coords.h| :^105
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/check_op.h::21449:
:In file included from 31/usr/local/clang/include/absl/log/check.h:: 37:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
In file included from   /usr/local/clang/include/absl/log/internal/check_op.h449: | 41 :
 In file included from e/usr/local/clang/include/absl/log/internal/strip.hx:t26e:
r/usr/local/clang/include/absl/log/internal/log_message.hn: 340t:e46m:p lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
e co  n340s | t   cfhraire*n da bvsoli_dn oAnbnsullFlo rMmaakteFClhueschk(OSptSrtirnignigf(y S i n\k
*       | a                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
si  n241k | ,#
d      e| f                                             ^i
ne /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _NonIn file included from ns2/s2centroids.ccu:l18l:

In file included from       ../src/s2/s2centroids.h| :                     ^50
:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_In file included from Ls2/s2coords.ccO:G18_:
IIn file included from N../src/s2/s2coords.hT:E105R:
NIn file included from A../src/s2/base/logging.hL:_21D:
EIn file included from F/usr/local/clang/include/absl/log/check.hI:N37E:
_In file included from M/usr/local/clang/include/absl/log/internal/check_impl.hA:K21E:
_In file included from C/usr/local/clang/include/absl/log/internal/check_op.hH:E41C:
KIn file included from _/usr/local/clang/include/absl/log/internal/strip.hO:P26_:
S/usr/local/clang/include/absl/log/internal/log_message.hT:R398I:N11G:_ Ewarning: Xtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERN  (398c | o n s t  vcohiadr**  aabbssll__nnuolnlnaubllle) ;c
o      n| s^t
& /usr/local/clang/include/absl/log/internal/check_op.hv:)450;:
25      :|            ^note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
/usr/local/clang/include/absl/base/nullability.h  :450257 | : 23 :   note:  expanded from macro 'absl_nullable' 
x,   257x | ,# dceofnisnte  cahbasrl*_ naublslla_bnloen n_uNlull)l
a      b| l                        ^e

      /usr/local/clang/include/absl/base/nullability.h| :                      ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2coords.cc_:N18o:
nIn file included from n../src/s2/s2coords.hu:l105l:

In file included from       ../src/s2/base/logging.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400In file included from  | s2/s2centroids.cc : 18 :
 In file included from c../src/s2/s2centroids.ho:n50s:
tIn file included from  ../src/s2/s2point.hv:o25i:
dIn file included from *../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h&: 21v:
)/usr/local/clang/include/absl/log/internal/check_op.h;:
461      :| 1                ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
257:23:   461 | note: Aexpanded from macro 'absl_nullable'B
SL  _257L | O#Gd_eIfNiTnEeR NaAbLs_lD_EnFuIlNlEa_bMlAeK E__NCuHlElCaKb_lOeP
_      S| T                      ^R
ING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from 37s2/s2coords.cc:
:In file included from 18/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2coords.h:
:/usr/local/clang/include/absl/log/internal/check_op.h105::
462In file included from :../src/s2/base/logging.h24::21 :
In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.h:note: 41expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/strip.h:  26241:
 | /usr/local/clang/include/absl/log/internal/log_message.h#:d425e:f31i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_n  o425n | n u lLlo g_MNeosnsnauglelF
a      t| a                     ^l
(conIn file included from ss2/s2centroids.cct: 18c:
hIn file included from a../src/s2/s2centroids.hr:*50 :
aIn file included from b../src/s2/s2point.hs:l25_:
nIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h :f36i:
lIn file included from e../src/s2/base/logging.h,: 21i:
nIn file included from t/usr/local/clang/include/absl/log/check.h :l37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h): 21A:
B/usr/local/clang/include/absl/log/internal/check_op.hS:L461_:A1T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE  _461C | OALBDS;L
_      L| O                              ^G
_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Dexpanded from macro 'absl_nonnull'E
FI  N241E | _#MdAeKfEi_nCeH EaCbKs_lO_Pn_oSnTnRuIlNlG __ENXoTnEnRuNl(l

            | | ^                     ^

/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const chIn file included from as2/s2coords.ccr:*18 :
aIn file included from b../src/s2/s2coords.hs:l105_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h):
37      :
| In file included from                         ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/check_op.h::2241::
 In file included from /usr/local/clang/include/absl/log/internal/strip.hnote: :expanded from macro 'absl_nonnull'26
:
/usr/local/clang/include/absl/log/internal/log_message.h  :241426 | :#31d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b426s | l _ nLoongnMuelsls a_gNeoFnantualll(
c      o| n                     ^s
t char* absl_nonnull fileIn file included from ,s2/s2centroids.cc :i18n:
tIn file included from  ../src/s2/s2centroids.hl:i50n:
eIn file included from ,../src/s2/s2point.h
:      25| :
                              ^In file included from 
../src/s2/util/coding/coder.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/casts.h::2236::
 In file included from ../src/s2/base/logging.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 463a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
n  n463u | lAlB S_LN_oLnOnGu_lIlN
T      E| R                     ^N
AL_DEFINE_In file included from Ms2/s2coords.ccA:K18E:
_In file included from C../src/s2/s2coords.hH:E105C:
KIn file included from _../src/s2/base/logging.hO:P21_:
SIn file included from T/usr/local/clang/include/absl/log/check.hR:I37N:
GIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hE:X21T:
EIn file included from R/usr/local/clang/include/absl/log/internal/check_op.hN:(41
:
      In file included from | /usr/local/clang/include/absl/log/internal/strip.h^:
26:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/log_message.h::449427::3131::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  449   | 427  |   e x t e r n   t e m p l a t e   c ocnosnts tc hcahra*r *a basbls_ln_onnonnunlull lM afkaeiClhuercek_OmpsSgt)r iAnBgS(L _ A T\T
R      I| B                              ^U
TE/usr/local/clang/include/absl/base/nullability.h_:C241O:L22D:; 
      note: | expanded from macro 'absl_nonnull'                              ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
NonnuIn file included from ls2/s2centroids.ccl:
18      :
| In file included from                      ^../src/s2/s2centroids.h
:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2coords.cc::24118::
22In file included from :../src/s2/s2coords.h :105note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:21  :
241In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs:l41_:
nIn file included from o/usr/local/clang/include/absl/log/internal/strip.hn:n26u:
l/usr/local/clang/include/absl/log/internal/log_message.hl: 436_:N36o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^436
 |   LogIn file included from Ms2/s2centroids.cce:s18s:
aIn file included from g../src/s2/s2centroids.he:D50e:
bIn file included from u../src/s2/s2point.hg:F25a:
tIn file included from a../src/s2/util/coding/coder.hl:(36c:
oIn file included from n../src/s2/base/casts.hs:t36 :
cIn file included from h../src/s2/base/logging.ha:r21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l464 :f26i:l ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      | /usr/local/clang/include/absl/base/nullability.h                                   ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MIn file included from As2/s2coords.ccK:E18_:
CIn file included from H../src/s2/s2coords.hE:C105K:
_In file included from O../src/s2/base/logging.hP:_21S:
TIn file included from R/usr/local/clang/include/absl/log/check.hI:N37G:
_In file included from E/usr/local/clang/include/absl/log/internal/check_impl.hX:T21E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_op.h(:
41      :
| In file included from ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/log/internal/log_message.h450::44625::43 : note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  450 |    446  |      L oxg,M exs,s acgoenQsuti ecthlayrD*e baubgsFla_tnaoln(ncuolnls)t
       c| h                        ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #fdielfei,n
e       | a                                          ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINIn file included from Es2/s2coords.cc_:M18A:
KIn file included from E../src/s2/s2coords.h_:C105H:
EIn file included from C../src/s2/base/logging.hK:_21O:
PIn file included from _/usr/local/clang/include/absl/log/check.hS:T37R:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hG:_21E:
XIn file included from T/usr/local/clang/include/absl/log/internal/check_op.hE:R41N:
(In file included from c/usr/local/clang/include/absl/log/internal/strip.ho:n26s:
t/usr/local/clang/include/absl/log/internal/log_message.h :v454o:i38d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o454n | n u lLlo)g;M
e      s| s^a
ge/usr/local/clang/include/absl/log/internal/check_op.hQ:u449i:e31t:l ynote: Fexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
tal  (449c | o n setx tcehranr *t eambpslla_tneo ncnounlslt  fcihlaer,*
       a| b                                     ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'M
ak  e241C | h#edcekfOipnSet raibnsgl(_ n o n\n
u      l| l                              ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _NIn file included from os2/s2coords.ccn:n18u:
lIn file included from l../src/s2/s2coords.h
:      105| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2centroids.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2centroids.h21::
50In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h41::
25In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :../src/s2/util/coding/coder.h26::
36:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :../src/s2/base/casts.h456::3638:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 456/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
L/usr/local/clang/include/absl/log/internal/check_op.ho:g465M:e66s:s awarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
Qui  e465t | lAyBFSaLt_aLlO(Gc_oInNsTtE RcNhAaLr_*D EaFbIsNlE__nMoAnKnEu_lClH EfCiKl_eO,P _iSnTtR IlNiGn_eE,X
T      E| R                                     ^N
(c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :v onote: iexpanded from macro 'absl_nonnull'd
*   a241b | s#ld_enfoinnneu lalb)s;l
_      n| o                                                                 ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine abslIn file included from _s2/s2coords.ccn:o18n:
nIn file included from u../src/s2/s2coords.hl:l105 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :s2/s2centroids.cc457::1838:
:In file included from  ../src/s2/s2centroids.h:warning: 50type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:25  :
457In file included from  | ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :c465o:n66s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dfeafiilnuer ea_bmsslg_)n
o      n| n                                     ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#defiIn file included from ns2/s2centroids.cce: 18a:
bIn file included from s../src/s2/s2centroids.hl:_50n:
oIn file included from n../src/s2/s2point.hn:u25l:
lIn file included from  ../src/s2/util/coding/coder.h_:N36o:
nIn file included from n../src/s2/base/casts.hu:l36l:

In file included from       ../src/s2/base/logging.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21In file included from :
s2/s2centroids.ccIn file included from :/usr/local/clang/include/absl/log/check.h18::
37In file included from :
../src/s2/s2centroids.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h50::
21In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/log/internal/check_op.h25::
180In file included from :../src/s2/util/coding/coder.h42::36 :
In file included from warning: ../src/s2/base/casts.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/base/logging.h:21  :
180In file included from  | /usr/local/clang/include/absl/log/check.hA:B37S:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hA:T21T:
R/usr/local/clang/include/absl/log/internal/check_op.hI:B502U:T1E:_ Pwarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
E_/usr/local/clang/include/absl/log/internal/check_op.hF:U489N:C47T:I Onote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
con  s489t |   c h a r *  caobnsslt_ nTo1n&n uvl1l,  McaoknesCth eTc2k&F avi2l,S tcroinnsgt( 
c      h| a                                         ^r
* a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241e | x#pdretfeixnte)  a{b s l _ n o\n
n      u| l                                              ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define aIn file included from bs2/s2coords.ccs:l18_:
nIn file included from o../src/s2/s2coords.hn:n105u:
lIn file included from l../src/s2/base/logging.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                     ^:

/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2centroids.ccu:l18l:
 In file included from _../src/s2/s2centroids.hN:o50n:
nIn file included from u../src/s2/s2point.hl:l25
:
      In file included from | ../src/s2/util/coding/coder.h                     ^:
36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from /usr/local/clang/include/absl/log/check.hs2/s2coords.cc::3718:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2coords.h::21105:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/base/logging.h::50221::
1In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/log/internal/check_op.h497::18132::58 : note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    497181 |  |     i n lcionnes tc oanbsstle:x:pSrt actounss*t  acbhsalr_*n oanbnsull_ln usltlaatbulse,  ncaomnes#t# Icmhpalr(*   a b s l _ n o n n u l l   p r e f i\x
)      ;| 
                               ^      
|                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257/usr/local/clang/include/absl/base/nullability.h::23241:: 22:note:  expanded from macro 'absl_nullable'note: 
expanded from macro 'absl_nonnull'
  257   | 241# | d#edfeifnien ea basbls_ln_unlolnanbullel  __NNuolnlnaubllle

            | |                      ^                      ^

In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from In file included from s2/s2coords.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2coords.h/usr/local/clang/include/absl/log/check.h::10537:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/check_impl.h::2121:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/check.h::50237::
1In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:189/usr/local/clang/include/absl/log/internal/check_op.h::28498:: 35:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  189   | 498i | n l i n e   cionnts tv 1a,b siln:t: Svt2a,t ucso*n satb sclh_anro*n naublsll _AnsoSntnautluls (ecxopnrstte xatb)s l{: : S t a t u s &   s )   { 
        |                             ^\

      | /usr/local/clang/include/absl/base/nullability.h                                  ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2centroids.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2centroids.h21::
50/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 296../src/s2/s2point.h::6325::
 In file included from ../src/s2/util/coding/coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
:
In file included from ../src/s2/base/casts.h:36  :
296In file included from  | ../src/s2/base/logging.h : 21    :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h : 503 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       503  |  A B S L _ L O G _ IcNoTnEsRtN AsLi_gCnHeEdC Kc_hOaPr_*I MaPbLs(lC_hneocnkn_uNlEl,) ;!
=      )| 
                                                              ^      
| ^/usr/local/clang/include/absl/base/nullability.h
:241:22/usr/local/clang/include/absl/log/internal/check_op.h:: 488:note: 32expanded from macro 'absl_nonnull':
 note:   expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'241
 | #d  e488f | i n ei nalbisnle_ ncoonnnsutlelx p_rN ocnonnusltl 
c      h| a                     ^r
* absl_nullable name##IIn file included from ms2/s2coords.ccp:l18(:
 In file included from  ../src/s2/s2coords.h : 105 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21\:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 298                               ^:
22: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
:23:   note: 298expanded from macro 'absl_nullable' | 
co  n257s | t# duenfsiingIn file included from ens2/s2closest_cell_query.cce :da 18cb:
shIn file included from alr../src/s2/s2closest_cell_query.h_*: n26ua:
lbIn file included from lsalb../src/s2/s1angle.h_ln:oen28n :
_uIn file included from Nl../src/s2/s2point.hlu:l 27ol:
apIn file included from eb../src/s2/s2coder.hlr:ea23t
:
o      In file included from r| /usr/local/clang/include/absl/status/status.h<                      ^<:
(67s:
tIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h:::29b:
aIn file included from s/usr/local/clang/include/absl/strings/cord.hi:In file included from c82s2/s2centroids.cc_:
:oIn file included from 18s/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:
r:eIn file included from 23a../src/s2/s2centroids.hm:
:<In file included from c50/usr/local/clang/include/absl/crc/crc32c.hh:
a:rIn file included from ,32../src/s2/s2point.h :
:TIn file included from 25r/usr/local/clang/include/absl/strings/str_format.h:
a:iIn file included from t84../src/s2/util/coding/coder.hs:
>:&In file included from 36,/usr/local/clang/include/absl/strings/internal/str_format/bind.h
:
:      In file included from 29| ../src/s2/base/casts.h:
                     ^:
36/usr/local/clang/include/absl/strings/internal/str_format/parser.h:
:/usr/local/clang/include/absl/base/nullability.hIn file included from 227:../src/s2/base/logging.h:241:11:21:22:
 :In file included from  warning: /usr/local/clang/include/absl/log/check.hnote: 'enable_if' is a clang extension [-Wgcc-compat]:expanded from macro 'absl_nonnull'
37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :  24121227 | :
# | /usr/local/clang/include/absl/log/internal/check_op.hd :e 503f :i 1n :e    awarning:  btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s
l _e/usr/local/clang/include/absl/log/internal/check_op.hnn:oa489nb:nl47ue:l_ linote:  fexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_(
Nsotnr  n_489uf | lo lr 
m       a | t                      ^_ 
icnotnesrtn aTl1:&: Evn1s,uIn file included from  rs2/s2coords.ccceo:Cn18os:
ntIn file included from s ../src/s2/s2coords.htT:e2105x&:
p In file included from rv../src/s2/base/logging.h(2:f,21o :
rcIn file included from mo/usr/local/clang/include/absl/log/check.han:ts37)t:
, In file included from 
c/usr/local/clang/include/absl/log/internal/check_impl.hh      :a| 21r          ^:
*
/usr/local/clang/include/absl/log/internal/check_op.h :a299b:s67/usr/local/clang/include/absl/strings/internal/str_format/parser.hl::_ 229n:warning: o11type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
n uwarning: l  'enable_if' is a clang extension [-Wgcc-compat]l299
  | e x   p 229r  | t  e  x  t  )     {             e  n\ a
 b       l|  e                                              ^ _
 i f/usr/local/clang/include/absl/base/nullability.h (: s241 t: r22 _: f  onote:  rexpanded from macro 'absl_nonnull' m
 a t   _241 i |  n# td ee rf ni an le :  :acVboasnllsi_tdn FouonnrnsmuialgtlnI em_dpN loc<nhCna.ur.l*.l >
a(      bf| so                     ^lr
_mnaotn)n,u
l      l| )          ^;

      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nulIn file included from ls2/s2coords.cca:b18l:
eIn file included from  ../src/s2/s2coords.h_:N105u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                      ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2centroids.cc:  18323:
 | In file included from  ../src/s2/s2centroids.h :f50r:
iIn file included from e../src/s2/s2point.hn:d25 :
vIn file included from o../src/s2/util/coding/coder.hi:d36 :
AIn file included from b../src/s2/base/casts.hs:l36F:
oIn file included from r../src/s2/base/logging.hm:a21t:
FIn file included from l/usr/local/clang/include/absl/log/check.hu:s37h:
(In file included from S/usr/local/clang/include/absl/log/internal/check_impl.ht:r21i:
n/usr/local/clang/include/absl/log/internal/check_op.hg:i503f:y1S:i nwarning: ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s498l:_35n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
ll s  i498n | k , 
        |                                               ^ 
int/usr/local/clang/include/absl/base/nullability.h :v2411:,22 :i nnote: texpanded from macro 'absl_nonnull' 
v2  ,241  | c#odnesfti nceh aarb*s la_bnsoln_nnuolnln u_lNlo nenxuplrlt
e      x| t                     ^)
 {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),In file included from 
s2/s2coords.cc      :| 18                     ^:

In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRI/usr/local/clang/include/absl/strings/internal/str_format/bind.hB:U158T:E22_:R Ewarning: T'enable_if' is a clang extension [-Wgcc-compat]U
RNS_  N158O | N N U L L   c_o_nasttt rcihbaurt*e _a_b(s(le_nnaobnlneu_lilf (MVaakleiCdhFeocrkmOaptSItmrpiln<gA(r
g      s| .                                           ^.
.>(/usr/local/clang/include/absl/base/nullability.hs:)241,: 22":b anote: dexpanded from macro 'absl_nonnull' 
fo  r241m | a#td etfrianpe" )a)b)s
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
/usr/local/clang/include/absl/strings/internal/str_format/bind.hIn file included from :../src/s2/s2coords.h162::10522:
:In file included from  ../src/s2/base/logging.h:warning: 21'enable_if' is a clang extension [-Wgcc-compat]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 162/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 429 :_31_:a twarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ibu  t429e | _ _ ( ( eTn1a bvl1e,_ iTf2( Vva2l,i dcFoonrsmta tcIhmaprl*< Aarbgssl._.n.o>n(nsu)l,l  "ebxapdr tfeoxrtm)a tA BtSrLa_pA"T)T)R)I
B      U| T                     ^E
_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2coords.cc  :50418 | :
AIn file included from B../src/s2/s2coords.hS:L105_:
LIn file included from O../src/s2/base/logging.hG:_21I:
NIn file included from T/usr/local/clang/include/absl/log/check.hE:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:C21H:
EC/usr/local/clang/include/absl/log/internal/check_op.hK:_451O:P1_:I Mwarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
(Che  c451k | _ALBES,L _<L=O)G
_      I| N^T
ERN/usr/local/clang/include/absl/log/internal/check_op.hA:L488_:D32E:F Inote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'E
_MA  K488E | _ C HiEnClKi_nOeP _cSoTnRsItNeGx_pErX TcEoRnNs(tb ocohla)r;*
       a| b^s
l_n/usr/local/clang/include/absl/log/internal/check_op.hu:l449l:a31b:l enote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
ame  #449# | I m pelx(t e r n   t e m p l a t e   c o n s t  \c
h      a| r                               ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257M | a#kdeeCfhiencek OapbSstlr_innugl(l a b l\e
       _| N                              ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22
:       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define aIn file included from bs2/s2centroids.ccs:l18_:
nIn file included from o../src/s2/s2centroids.hn:n50u:
lIn file included from l../src/s2/s2point.h :_25N:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from 
../src/s2/base/casts.h      :| 36                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2coords.cc21::
18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 504../src/s2/s2coords.h::1105::
 In file included from ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/check.h::48937::
47In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/log/internal/check_op.h
:451:1:   489 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 450c:o25n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'T
1&   450v | 1 ,   c o n sxt,  Tx2,&  cvo2n,s tc ocnhsatr *c haabrs*l _anbosnln_unloln)n
u      l| l                        ^ 
ex/usr/local/clang/include/absl/base/nullability.hp:r241t:e22x:t )note:  expanded from macro 'absl_nonnull'{
     241  |  #\d
e      f| i                                              ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31In file included from :s2/s2centroids.cc :18note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
../src/s2/s2centroids.h:50:
  In file included from 449../src/s2/s2point.h | :25:
 In file included from  e../src/s2/util/coding/coder.hx:t36e:
rIn file included from n../src/s2/base/casts.h :t36e:
mIn file included from p../src/s2/base/logging.hl:a21t:
eIn file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :c21h:
a/usr/local/clang/include/absl/log/internal/check_op.hr:*504 :a1b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u497l:l32 :M anote: kexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
Chec  k497O | p S tirnilnign(e   c o\n
s      t| e                              ^x
pr/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innuel laabbslle_ nnoanmneu#l#lI m_pNlo(n n u l l 
        |                       ^ 
          \
In file included from       s2/s2coords.cc| :                               ^18
:
In file included from ../src/s2/s2coords.h/usr/local/clang/include/absl/base/nullability.h::105257:
:In file included from 23../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 257/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i452n:e1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/log/internal/check_op.hu:l450l:a25b:l enote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
Nu  l450l | a b l e 
        | x                      ^,
 x, constIn file included from  s2/s2centroids.ccc:h18a:
rIn file included from *../src/s2/s2centroids.h :a50b:
sIn file included from l../src/s2/s2point.h_:n25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:
)In file included from 
../src/s2/base/casts.h      :| 36                        ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 504#:d1e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s498l:_35n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
ll   _498N | o n n u l l 
i      n| t                     ^ 
v1, int v2, const char* absl_In file included from ns2/s2coords.cco:n18n:
uIn file included from l../src/s2/s2coords.hl: 105e:
xIn file included from p../src/s2/base/logging.hr:t21e:
xIn file included from t/usr/local/clang/include/absl/log/check.h): 37{:
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 453 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \  
453       | | A                                  ^B
SL/usr/local/clang/include/absl/base/nullability.h_:L241O:G22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#DdEeFfIiNnEe_ MaAbKsEl__CnHoEnCnKu_lOlP __SNToRnInNuGl_lE
X      T| E                     ^R
N(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LIn file included from Os2/s2centroids.ccG:_18I:
NIn file included from T../src/s2/s2centroids.hE:R50N:
AIn file included from L../src/s2/s2point.h_:D25E:
FIn file included from I../src/s2/util/coding/coder.hN:E36_:
MIn file included from A../src/s2/base/casts.hK:E36_:
CIn file included from H../src/s2/base/logging.hE:C21K:
_In file included from O/usr/local/clang/include/absl/log/check.hP:_37S:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:N21G:
_/usr/local/clang/include/absl/log/internal/check_op.hE:X505T:E1R:N (warning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
sig  n505e | dA BcShLa_rL)O;G
_      I| N^T
ER/usr/local/clang/include/absl/log/internal/check_op.hN:A449L:_31C:H Enote: Cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'K
_OP  _449I | M P Le(xCtheercnk _tLeTm,p l<a)t
e       | c^o
ns/usr/local/clang/include/absl/log/internal/check_op.ht: 488c:h32a:r *note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
bsl  _488n | o n niunllli nMea kceoCnhsetcekxOpprS tcroinnsgt(  c h a\r
*       | a                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 In file included from n  s2/s2closest_point_query.cca241:m | 18e#:
#d#eIn file included from If../src/s2/s2closest_point_query.hmi:pn26el:
 (In file included from  a../src/s2/s1angle.h b: s28 l:
_ In file included from  n../src/s2/s2point.ho : n27 n:
u In file included from l ../src/s2/s2coder.hl :  23_ :
N In file included from o /usr/local/clang/include/absl/status/status.hn :n 67u :
\lIn file included from l
/usr/local/clang/include/absl/status/internal/status_internal.h
      :      | 29|                                ^:
                     ^
In file included from 
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94257:
:In file included from 23/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from ::s2/s2coords.cc 31::
note: 18expanded from macro 'absl_nullable'/usr/local/clang/include/absl/synchronization/mutex.h:

:In file included from 489../src/s2/s2coords.h  ::25714105 | ::
# In file included from d../src/s2/base/logging.hewarning: :ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]21i
:
nIn file included from e/usr/local/clang/include/absl/log/check.h :  a37489b:
s | In file included from l /usr/local/clang/include/absl/log/internal/check_impl.h_ :n 21u :
l /usr/local/clang/include/absl/log/internal/check_op.hl :av457bol:ie1d : _ (Nwarning: *utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]al
bl/usr/local/clang/include/absl/log/internal/check_op.hasb:ll450_en:
u25      l:| l                       ^a
note: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
e   i450n | v a r In file included from i s2/s2centroids.cc a: nx18t,:
) In file included from (x../src/s2/s2centroids.hv,:o i50cdo:
n*sIn file included from  t../src/s2/s2point.ha :bc25sh:
laIn file included from r_*../src/s2/util/coding/coder.hn :aub36ls:
ll_In file included from an../src/s2/base/casts.hbo:in36ln:
iuIn file included from tl../src/s2/base/logging.hyl:_)21u
:
n      In file included from k| /usr/local/clang/include/absl/log/check.hn                        ^:o
37w:
/usr/local/clang/include/absl/base/nullability.hnIn file included from :)/usr/local/clang/include/absl/log/internal/check_impl.h241,::
2122      :
:| /usr/local/clang/include/absl/log/internal/check_op.h              ^:
note: 505expanded from macro 'absl_nonnull':
1/usr/local/clang/include/absl/base/nullability.h:  : 241257 | warning: :#type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23d
:e /usr/local/clang/include/absl/log/internal/check_op.hfnote: :iexpanded from macro 'absl_nullable'489n
e: 47  a:b257s l | note: _#nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'do
enfniu  nl489el |    a _b Ns ol n_ nncuulollnls
at      b | lT                     ^e1
 &_ Nvu1l,l acbolnes
t       | T                      ^2
& v2, In file included from cIn file included from s2/s2coords.ccos2/s2closest_point_query.cc:n:s1818t:
 :
cIn file included from In file included from h../src/s2/s2coords.h../src/s2/s2closest_point_query.ha::r10526*:
 :
aIn file included from In file included from b../src/s2/base/logging.hs../src/s2/s1angle.h:l:_21n28o:
:
nIn file included from nIn file included from u/usr/local/clang/include/absl/log/check.h../src/s2/s2point.hl::l37 27e:
:
xIn file included from pIn file included from /usr/local/clang/include/absl/log/internal/check_impl.hr../src/s2/s2coder.h:t:e21x23:
t:
/usr/local/clang/include/absl/log/internal/check_op.h)In file included from : /usr/local/clang/include/absl/status/status.h{458 :: 67 1:
 :In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h\:warning: 
29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      :

| In file included from                                               ^/usr/local/clang/include/absl/strings/cord.h
:  94458/usr/local/clang/include/absl/base/nullability.h:
 | :In file included from A241B/usr/local/clang/include/absl/strings/internal/cordz_info.h:S:L22_31L:O:
G _/usr/local/clang/include/absl/synchronization/mutex.hnote: I:Nexpanded from macro 'absl_nonnull'489T
:E45  R:N241 A | Lwarning: _#type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]dD
eEfFi  nI489eN | E  a_bMs AlK _En o_ nC HnvuEolCilK d__ NO(Po*_nSaTnbuRlsIlN
lG      __| E                     ^nX
uTlElRaNb(lceo nisntv asrtida:n:ts)t(rvionigd&*) ;a
b      s| l^_
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l449a:b31i:l inote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'y
_un  k449n | o w ne)x,t
e      r| n                                            ^ 
te/usr/local/clang/include/absl/base/nullability.hm:p289l:a34t:e  note: cexpanded from macro 'absl_nullability_unknown'o
nst   289c | h#adre*f ianbes la_bnsoln_nnuullll aMbaikleiCthye_cukIn file included from nOs2/s2centroids.ccpkS:nt18ro:
iwnIn file included from ng../src/s2/s2centroids.h (:_ 50N :
 uIn file included from \l../src/s2/s2point.hl
:_      25u| :
n                              ^In file included from s
../src/s2/util/coding/coder.hp:/usr/local/clang/include/absl/base/nullability.he36:c:
i241In file included from f:../src/s2/base/casts.hi22:e:36d :

In file included from note:       ../src/s2/base/logging.hexpanded from macro 'absl_nonnull'| :
                                 ^21
:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 In file included from /usr/local/clang/include/absl/log/internal/check_op.has2/s2closest_point_query.ccb:s:505l18:_:
1nIn file included from :o../src/s2/s2closest_point_query.h n:warning: n26type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u:
l
lIn file included from  ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.h_:N:28o497n:
:nIn file included from 32u../src/s2/s2point.h:l: l27note: 
:
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'      In file included from 
| ../src/s2/s2coder.h                     ^:
23  :
497In file included from  | /usr/local/clang/include/absl/status/status.h : 67i:
nIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from c/usr/local/clang/include/absl/strings/cord.hIn file included from o:s2/s2coords.ccn94s::
t18In file included from e:
x/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from p:../src/s2/s2coords.hr31 ::
c105/usr/local/clang/include/absl/synchronization/mutex.ho:
:nIn file included from s490../src/s2/base/logging.ht: :c13h21:a:
r *In file included from  warning: /usr/local/clang/include/absl/log/check.hatype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]b:
s37l:
  _In file included from n490u/usr/local/clang/include/absl/log/internal/check_impl.h | l: l21 a:
b /usr/local/clang/include/absl/log/internal/check_op.hl : e458  n:va1om:ie #dwarning: *#type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I 
ma/usr/local/clang/include/absl/log/internal/check_op.hpbl:s(450l : _ 25n : u   lnote:  lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' a
 b i   l 450 i |  t  y  _    \ u 
xn      ,k|  nx                               ^o,
w nc/usr/local/clang/include/absl/base/nullability.ho :nas257rt: gc23h)a:;r *
note:        expanded from macro 'absl_nullable'a| b
            ^s
  l257_/usr/local/clang/include/absl/base/nullability.hn | :o#nd289en:ufli34ln):
e        note: a| expanded from macro 'absl_nullability_unknown'b                        ^s
l
_  n/usr/local/clang/include/absl/base/nullability.h289u: | l241#l:da22eb:fl ienote: n expanded from macro 'absl_nonnull'e_
 Na  ub241lsl | la_#bdnleufeli
ln      ae| b                      ^ ia
lbistly__nuonnIn file included from kns2/s2centroids.ccnu:ol18wl:
n In file included from  _../src/s2/s2centroids.h_N:No50un:
lnIn file included from lu../src/s2/s2point.hl_l:u
25n      :
s| In file included from p                     ^../src/s2/util/coding/coder.he
:c36i:
fIn file included from i../src/s2/base/casts.he:d36
:
      In file included from | ../src/s2/base/logging.h                                 ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2coords.cc
:In file included from 18/usr/local/clang/include/absl/log/internal/check_op.hs2/s2closest_point_query.cc:
::In file included from 49818../src/s2/s2coords.h::
:35In file included from 105:../src/s2/s2closest_point_query.h:
 :In file included from 26note: ../src/s2/base/logging.h:
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':In file included from 
21../src/s2/s1angle.h:
:In file included from 28  /usr/local/clang/include/absl/log/check.h:
498:In file included from  | 37../src/s2/s2point.h :
: In file included from 27 /usr/local/clang/include/absl/log/internal/check_impl.h :
 : In file included from i21../src/s2/s2coder.hn:
:t23 /usr/local/clang/include/absl/log/internal/check_op.h:
v:In file included from 1459/usr/local/clang/include/absl/status/status.h,: :1i67n::
t In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hwarning: v:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]229,
 :
cIn file included from o/usr/local/clang/include/absl/strings/cord.h  n:s45994t |  :
AcIn file included from hB/usr/local/clang/include/absl/strings/internal/cordz_info.hSa:rL*_31L :
aO/usr/local/clang/include/absl/synchronization/mutex.hbG:s_499lI:N_35nT:Eo Rnwarning: Nntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]uA
lLl_ De  ExFp499rI | Nt Ee x_vMto)AiKd E {_E Cn HaE Cb Kl _e OD Pe_ bS u Tg RL oI gN (G _cE o Xn\T
sE      tR|  N                                  ^c(
hca/usr/local/clang/include/absl/base/nullability.horn:*s241 ta:b 22sa:lb _snote: nexpanded from macro 'absl_nonnull'ul
l:l  a:241bs | lt#edr einnfagim_nveei) e;aw
&bIn file included from       )ss2/s2closest_cell_query.cc| ;l:                                  ^
_18
      n:
/usr/local/clang/include/absl/base/nullability.h| oIn file included from :^n../src/s2/s2closest_cell_query.hn257
:u:26l/usr/local/clang/include/absl/log/internal/check_op.h23:
l::In file included from  449 ../src/s2/s1angle.h_::note: N3128expanded from macro 'absl_nullable'o:n:
n
u lIn file included from   note: l../src/s2/s2point.h
257expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':       | 
27| #:
                     ^d  In file included from 
e449../src/s2/s2coder.hf | :i 23 n:
eeIn file included from  x/usr/local/clang/include/absl/status/status.hat:eb67rs:
nlIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_tn:eu29ml:
lpIn file included from al/usr/local/clang/include/absl/strings/cord.hba:lt82ee:
  In file included from _c/usr/local/clang/include/absl/crc/internal/crc_cord_state.hNo:un23ls:
tl In file included from ca/usr/local/clang/include/absl/crc/crc32c.hhb:alr32e*:

       /usr/local/clang/include/absl/strings/str_format.ha| :b                      ^115s
:l52_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull M  a115k | e C h e c k OcpoSntsrti nsgt(r _ f o\r
m      a| t                              ^_
in/usr/local/clang/include/absl/base/nullability.ht:e241r:n22In file included from a:s2/s2closest_point_query.ccl ::18note: ::
expanded from macro 'absl_nonnull'PIn file included from 
a../src/s2/s2closest_point_query.hr:s  26e241:
d | In file included from F#../src/s2/s1angle.hod:re28mf:
ianIn file included from te../src/s2/s2point.hB :aa27sb:
esIn file included from *l../src/s2/s2coder.h _:an23bo:
snIn file included from ln/usr/local/clang/include/absl/status/status.h_u:nl67ol:
n In file included from n_/usr/local/clang/include/absl/status/internal/status_internal.huN:lo29ln:
 nIn file included from pu/usr/local/clang/include/absl/strings/cord.hcl:)l94

:
            In file included from | | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                                   ^                     ^:

31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::549241::4022::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

In file included from s2/s2coords.cc  :  24118549 | :
 | #In file included from  d ../src/s2/s2coords.hes:ft105ai:
tniIn file included from ec../src/s2/base/logging.h  :av21bo:
siIn file included from ld/usr/local/clang/include/absl/log/check.h_ :nI37on:
ncIn file included from nr/usr/local/clang/include/absl/log/internal/check_impl.hue:lm21le:
 n/usr/local/clang/include/absl/log/internal/check_op.h_t:NS459oy:nn1nc:uh lSwarning: letype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
m
      (| /usr/local/clang/include/absl/log/internal/check_op.hM                     ^u:
t450e:x25*:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_  n450o | n n u l l   mxu,, 
x      ,|                                         ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel )a
b      s| l                        ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnullIn file included from  s2/s2closest_point_query.cc_:N18o:
nIn file included from n../src/s2/s2closest_point_query.hu:l26l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                          In file included from  s2/s2closest_cell_query.cc : 18 :
 In file included from  ../src/s2/s2closest_cell_query.h :b26a:
sIn file included from e../src/s2/s1angle.h_:i28n:
tIn file included from e../src/s2/s2point.hr:n27a:
lIn file included from :../src/s2/s2coder.h::P23e:
rIn file included from T/usr/local/clang/include/absl/status/status.hh:r67e:
aIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.hS:y29n:
cIn file included from h/usr/local/clang/include/absl/strings/cord.h*: 82a:
bIn file included from s/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/crc/crc32c.hn:u32l:
l/usr/local/clang/include/absl/strings/str_format.h :w155):;36
:       | warning:                                                                ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:  22155: |   note:  expanded from macro 'absl_nonnull'e
xp  l241i | c#idte fFionrem aatbCsolu_nntoCnanputlulr e_(Nionntn*u lalb
s      l| _                     ^n
onnull p) : p_(p) {In file included from }s2/s2closest_point_query.cc
:      18| :
                                   ^In file included from 
../src/s2/s2closest_point_query.h:26:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h241::2822:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_551N:o40n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^  
551 |   static In file included from bs2/s2coords.cco:o18l:
 In file included from D../src/s2/s2coords.he:c105r:
eIn file included from m../src/s2/base/logging.he:n21t:
SIn file included from In file included from y/usr/local/clang/include/absl/log/check.hs2/s2closest_cell_query.ccn::c3718h:
:
SIn file included from In file included from e/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2closest_cell_query.hm::(2126M:
:
uIn file included from /usr/local/clang/include/absl/log/internal/check_op.ht../src/s2/s1angle.h:e:460x28:*:
1 In file included from :a../src/s2/s2point.h b:warning: s27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:

_In file included from n../src/s2/s2coder.ho:n23  n:
460uIn file included from  | l/usr/local/clang/include/absl/status/status.hAl:B 67Sm:
LuIn file included from _,/usr/local/clang/include/absl/status/internal/status_internal.hL
:O      29G| :
_                                       ^IIn file included from 
N/usr/local/clang/include/absl/strings/cord.hT:/usr/local/clang/include/absl/base/nullability.hE82:R:
241NIn file included from :A/usr/local/clang/include/absl/crc/internal/crc_cord_state.h22L::_23D :
EIn file included from note: F/usr/local/clang/include/absl/crc/crc32c.hexpanded from macro 'absl_nonnull'I:
N32E  :
_241/usr/local/clang/include/absl/strings/str_format.hM | A:#K164dE:e_8fC:HiE nCwarning: eKtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] _
aObPs  _lS164_T | nR oI nNinGnu_tlE*lX  Ta_EbNRsNol(n_cnnouonlnsltn
 u      clh| la                     ^ r
U*n uasbesdl(_)nIn file included from  os2/s2closest_point_query.cc{n: n18ru:
elIn file included from lt../src/s2/s2closest_point_query.h)u:;r26
n:
       In file included from | p../src/s2/s1angle.h^_:
;28 :
/usr/local/clang/include/absl/log/internal/check_op.h}In file included from :
../src/s2/s2point.h449      ::| 2731       ^:
:
In file included from  ../src/s2/s2coder.h:note: /usr/local/clang/include/absl/base/nullability.h23expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'::

241In file included from :/usr/local/clang/include/absl/status/status.h22:  :67449 :
 | In file included from note:  /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull' :e
29x:
  tIn file included from e241/usr/local/clang/include/absl/strings/cord.hr | :n#94 d:
teIn file included from efm/usr/local/clang/include/absl/strings/internal/cordz_info.hip:nl31ea:
 t/usr/local/clang/include/absl/synchronization/mutex.hae:b 552sc:lo64_n:sn towarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]cnh
ualrl*    552_a | bN so ln _n nu ol nl n
 u       l|  l                     ^  
 M a k e C h e c k O p S t r iIn file included from  ns2/s2closest_cell_query.cc g:( 18  :
  In file included from   ../src/s2/s2closest_cell_query.h\b:
a26      s:
| eIn file included from                               ^_../src/s2/s1angle.h
i:n28/usr/local/clang/include/absl/base/nullability.ht:
:eIn file included from 241r../src/s2/s2point.h:n:22a27:l:
 :In file included from note: :../src/s2/s2coder.hexpanded from macro 'absl_nonnull'P:
e23r:
  TIn file included from 241h/usr/local/clang/include/absl/status/status.h | r:#e67da:
deIn file included from Sf/usr/local/clang/include/absl/status/internal/status_internal.hyi:nn29ce:
h In file included from a*b/usr/local/clang/include/absl/strings/cord.h s:al82b_:
snIn file included from lo/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_n:nn23uo:
nlIn file included from nl/usr/local/clang/include/absl/crc/crc32c.hu :l_32lN:
 o/usr/local/clang/include/absl/strings/str_format.hwn:,n165
u:l      8l| :
                                                               ^       
| warning:                      ^/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
241:22  :165 In file included from  | note: s2/s2coords.cc expanded from macro 'absl_nonnull': 
18i:
  nIn file included from 241t../src/s2/s2coords.h | *:# 105da:
ebIn file included from fs../src/s2/base/logging.hil:n_21en:
 oIn file included from an/usr/local/clang/include/absl/log/check.hbn:sul37l_:
lnIn file included from  o/usr/local/clang/include/absl/log/internal/check_impl.hpn:_n21;u:

l/usr/local/clang/include/absl/log/internal/check_op.h      l:|  460       ^_:
N66o:/usr/local/clang/include/absl/base/nullability.hn :n241warning: u:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l22
l:
       |   note:                      ^460expanded from macro 'absl_nonnull'
 | 
AB  S241L | _#LdOeGf_iInNeT EaRbNsAlL__nDoEIn file included from nFs2/s2closest_point_query.ccnI:Nu18lE:
l_In file included from  M../src/s2/s2closest_point_query.h_A:NK26Eo_:
CnHIn file included from nE../src/s2/s1angle.huC:lK28l_:

OIn file included from P      ../src/s2/s2point.h_| S:                     ^T27
R:
IIn file included from N../src/s2/s2coder.hG:_23E:
XIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
(In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/strings/cord.hc:h94a:
rIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_556n:o38n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
);
        | 556                                                                 ^ | 
  /usr/local/clang/include/absl/base/nullability.hv:o241i:d22 :L onote: cexpanded from macro 'absl_nonnull'k
Sl  o241w | L#odoepf(iSnyen cahbWsali_tnPoanrnaumlsl*  _aNbosnln_unloln
n      u| l                     ^l
 waitp,In file included from  s2/s2coords.cci:n18t:
 In file included from f../src/s2/s2coords.hl:a105g:
sIn file included from )../src/s2/base/logging.h;:
21      :
| In file included from                                      ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
: /usr/local/clang/include/absl/log/internal/check_op.h:note: 460expanded from macro 'absl_nonnull':
66:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelIn file included from f is2/s2closest_cell_query.cc_n:eN18 o:
anIn file included from bn../src/s2/s2closest_cell_query.hsu:ll_26ln:
o
nIn file included from       n../src/s2/s1angle.h| u:l                     ^28l
:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from In file included from | /usr/local/clang/include/absl/status/status.hs2/s2centroids.cc                     ^::
In file included from 6718s2/s2closest_point_query.cc:
:
:In file included from In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from ../src/s2/s2centroids.h:
:s2/s2coords.cc:In file included from 29:50../src/s2/s2closest_point_query.h:
18:
:In file included from :
In file included from 26/usr/local/clang/include/absl/strings/cord.hIn file included from ../src/s2/s2point.h:
:../src/s2/s2coords.h:In file included from 25../src/s2/s1angle.h:28:82:
:
105:
In file included from In file included from :
In file included from ../src/s2/util/coding/coder.h../src/s2/s2point.hIn file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h::../src/s2/base/logging.h:3627:23:
:
21:
In file included from In file included from :
In file included from ../src/s2/base/casts.h../src/s2/s2coder.hIn file included from /usr/local/clang/include/absl/crc/crc32c.h::/usr/local/clang/include/absl/log/check.h:3623:32:
:
37:
In file included from In file included from :
../src/s2/base/logging.h/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/status/status.hIn file included from :::/usr/local/clang/include/absl/log/internal/check_impl.h2138067::
::
21In file included from 43In file included from :
/usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_op.h: ::3729warning: 460:
:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:In file included from In file included from 
1/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/cord.h::: 21  94:
warning: 380:
/usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | In file included from :
s/usr/local/clang/include/absl/strings/internal/cordz_info.h506t::d  311:460:
:: | /usr/local/clang/include/absl/synchronization/mutex.hA s:Bwarning: t558Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r:L
i35_nL:O  g G506&warning: _ |  AStype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tIB
SrNLA_T  EpRLN558ApOe | nLd_GD F o_rIENbTmFaIoEoRtNNAlL(_EC HsE_LMtAdC:o:KKc_sOtErkiPn_gS_C*HlEI MoPCLa(wKbCWhi_sOetclkPh__Sn_DGToeERnIaN,n dGl_uEl>iXlT E=RnNd()e
scto(      M,n| su
H^t       o
w| c h                                          ^a/usr/local/clang/include/absl/log/internal/check_op.hra
:*b488s /usr/local/clang/include/absl/base/nullability.h:la:32_b241:ns: ol22note: n_:nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n o
unote: nlexpanded from macro 'absl_nonnull'  nl
 488uh | o   lw 241il, | 
n)#;      
ld| e      i                                  ^f| n
ei^/usr/local/clang/include/absl/base/nullability.h n
e:c o241/usr/local/clang/include/absl/log/internal/check_op.han:s:b22t450s:e:l x25_note: p:nexpanded from macro 'absl_nonnull'r o
n note: n  ucexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o241l
n | ls   _#t450Nd  | o nenc f uhia rl*n  l ea
bx ,       sxa,|  lb_                     ^ncso
ulln_slnatob nclnheu lnalar *m_ eNa#ob#nIsnmuplll_l(
 n       o n|  n                     ^u 
l l ) 
        |                          ^ 
In file included from  /usr/local/clang/include/absl/base/nullability.hs2/s2closest_point_query.cc :: 24118 : :
 22In file included from  :\../src/s2/s2closest_point_query.h 
:      note: 26expanded from macro 'absl_nonnull'| :
                               ^
In file included from 
../src/s2/s1angle.h  :24128/usr/local/clang/include/absl/base/nullability.h | :
:#In file included from 257d../src/s2/s2point.h:e:23f27i::
n eIn file included from note:  ../src/s2/s2coder.haexpanded from macro 'absl_nullable'b:
s23l:
  _In file included from n257/usr/local/clang/include/absl/status/status.ho | :n#67nd:
euIn file included from fl/usr/local/clang/include/absl/status/internal/status_internal.hil:n 29_e:
 NIn file included from oa/usr/local/clang/include/absl/strings/cord.hnbn:su94ll:
l_In file included from n
/usr/local/clang/include/absl/strings/internal/cordz_info.hu      :l| 31                     ^l:
a
/usr/local/clang/include/absl/synchronization/mutex.hb:l559e: 46_:N uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
abl  e559
 |        |                        ^ 
       In file included from In file included from  s2/s2closest_cell_query.ccs2/s2coords.cc ::In file included from  1818s2/s2centroids.cc :
:
: In file included from In file included from 18 ../src/s2/s2closest_cell_query.h../src/s2/s2coords.h:
 ::In file included from  26105../src/s2/s2centroids.h :
:
: In file included from In file included from 50 ../src/s2/s1angle.h../src/s2/base/logging.h:
 ::In file included from  2821../src/s2/s2point.h :
:
: In file included from In file included from 25 ../src/s2/s2point.h/usr/local/clang/include/absl/log/check.h:
 ::In file included from  2737../src/s2/util/coding/coder.hc:
:
:oIn file included from In file included from 36n../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_impl.h:
s::In file included from t2321../src/s2/base/casts.h :
:
:CIn file included from 36/usr/local/clang/include/absl/log/internal/check_op.ho/usr/local/clang/include/absl/status/status.h:
:n:In file included from 461d67../src/s2/base/logging.h:i:
:1tIn file included from 21:i/usr/local/clang/include/absl/status/internal/status_internal.h:
 o:In file included from warning: n29/usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*:
 :a
In file included from 37b/usr/local/clang/include/absl/strings/cord.h:
  s:In file included from 461l82/usr/local/clang/include/absl/log/internal/check_impl.h | _:
n:AIn file included from Bu21l/usr/local/clang/include/absl/crc/internal/crc_cord_state.hS:
l:L/usr/local/clang/include/absl/log/internal/check_op.ha23_:b:
L506lIn file included from O:Ge_/usr/local/clang/include/absl/crc/crc32c.h1 I::cN32T o:
Ewarning: Rn/usr/local/clang/include/absl/strings/str_format.hdtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:,
A440
L:_/usr/local/clang/include/absl/log/internal/check_op.hD      E24F:I| N:489                                             ^E :
_47warning: M:/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A :
K257note: E:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_23C  
:H440 E |   note: Ci489expanded from macro 'absl_nullable'Kn_ | O
Pt _     SF257P T | Rr i#nI dctNeGo_Ff(nEsits XTn1t&TeEd  Ra:bvN:(s
1F,l      _In | L^ucEo
l*nl/usr/local/clang/include/absl/log/internal/check_op.ha sat: bbl449Ts2e&:l  31__v:2nNo ,unlnote:  nluexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'caoln
sblt   lc h449eoa | 
ur        t*| e                      ^p xa
busttel,r_nn o cntoennumspltll aFt oee xrpIn file included from cmors2/s2closest_point_query.cctaen:txs18tS tc:
hp)In file included from aer *../src/s2/s2closest_point_query.h c{:a< A 26br :
sgl In file included from  s\_
../src/s2/s1angle.h.n      o:n.| 28n.u                                              ^:
>l
In file included from &l../src/s2/s2point.h /usr/local/clang/include/absl/base/nullability.hM a::fk27e241o:
C:rIn file included from mh22e../src/s2/s2coder.hca::kt ,23Onote: p
S:
expanded from macro 'absl_nonnull'      tIn file included from 
| r/usr/local/clang/include/absl/status/status.hi                       ^  :n
g24167( | /usr/local/clang/include/absl/base/nullability.h#:
d : In file included from e241f i/usr/local/clang/include/absl/status/internal/status_internal.hn:e\:
22 29a      ::
b| s In file included from                               ^lnote: _/usr/local/clang/include/absl/strings/cord.h
expanded from macro 'absl_nonnull'n:o
/usr/local/clang/include/absl/base/nullability.h94n::
  n241In file included from 241u:/usr/local/clang/include/absl/strings/internal/cordz_info.h | l22:#l:31d  _:
Nenote: /usr/local/clang/include/absl/synchronization/mutex.hofexpanded from macro 'absl_nonnull':ni
562nn:e  u23l l241:a
 |  b      #warning: s| d                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]le

_fnion  ne562n  | ua lbl s vl_o_Ninodon nnLunolucllk
lS       l_| No                     ^ow
n(nMuulHlo
w       | a                     ^b
sl_noIn file included from ns2/s2coords.ccn:u18l:
lIn file included from  ../src/s2/s2coords.hh:o105w:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :C37o:
nIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.hi:t21i:
o/usr/local/clang/include/absl/log/internal/check_op.hn:*462 :a24b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ul  l462a | b l In file included from e s2/s2closest_cell_query.cc  :cc18oo:
nnIn file included from sd../src/s2/s2closest_cell_query.ht, :
s26      i:
| gIn file included from In file included from                       ^ns2/s2centroids.cc../src/s2/s1angle.h
e::d18 28/usr/local/clang/include/absl/base/nullability.h:
c:
:In file included from hIn file included from 241../src/s2/s2centroids.ha../src/s2/s2point.h::r:*22 50a27b::
:
s lIn file included from In file included from note: _../src/s2/s2point.hn../src/s2/s2coder.hexpanded from macro 'absl_nonnull':o:n
2523n:
u:
  In file included from lIn file included from l241../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/status.h) | ;:
:#36      67d:
| :
                       ^eIn file included from In file included from 
f../src/s2/base/casts.h/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.hi:::n3629241e:
:
: In file included from In file included from 22a../src/s2/base/logging.h/usr/local/clang/include/absl/strings/cord.h:b:: s2182note: l:
_:
expanded from macro 'absl_nonnull'In file included from nIn file included from 
/usr/local/clang/include/absl/log/check.ho/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:  n:37241n23:
 | u#:
dIn file included from elIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hf/usr/local/clang/include/absl/crc/crc32c.h :i:_21Nn32e:
o:
 /usr/local/clang/include/absl/log/internal/check_op.hn/usr/local/clang/include/absl/strings/str_format.ha:n:b506u469s:l:l1l20_:
:n o      n warning: | nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l


l/usr/local/clang/include/absl/log/internal/check_op.h :_497  N:469o32 | n:In file included from in us2/s2closest_point_query.cclnlnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
18
       :
S| In file included from   N                     ^../src/s2/s2closest_point_query.h497P
: | r26i :
 niIn file included from tn../src/s2/s1angle.hlIn file included from F:is2/s2coords.cc(28n:c:
e18hIn file included from  :
a../src/s2/s2point.hcIn file included from orn:s../src/s2/s2coords.ht*e27x: :
p105raIn file included from b:
 ../src/s2/s2coder.hsIn file included from c:l../src/s2/base/logging.ho23n_::
sn21oIn file included from t:
 nc/usr/local/clang/include/absl/status/status.hIn file included from nh:a/usr/local/clang/include/absl/log/check.hu67r:l:
*37 laIn file included from :
 b/usr/local/clang/include/absl/status/internal/status_internal.hsIn file included from o:l/usr/local/clang/include/absl/log/internal/check_impl.hu29_:ntu:
l21lpIn file included from u:
a/usr/local/clang/include/absl/strings/cord.hbt/usr/local/clang/include/absl/log/internal/check_op.h,:l: 94e462s:
 :ntaIn file included from m24d/usr/local/clang/include/absl/strings/internal/cordz_info.he:::# :31#warning: Ism:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ip/usr/local/clang/include/absl/synchronization/mutex.h
zl:(e/usr/local/clang/include/absl/base/nullability.h562 _ : : t24158   ::s 22 i :warning: z  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e 
 note:  ,expanded from macro 'absl_nonnull'
    
      562    |  |                    ^241  
  |  v#o/usr/local/clang/include/absl/base/nullability.h d\e
fi:      idn e241 | L                               ^:ao
c22bk:/usr/local/clang/include/absl/base/nullability.hsS :ll257onote: _:nwoexpanded from macro 'absl_nonnull'23(n
n:uMl   ulnote:  241_Hexpanded from macro 'absl_nullable' | Noo
n#wn  udl l257
ea |       #fdb| sie                     ^fln_
ienn eo naaIn file included from nbbss2/s2coords.cclu_sn:ullll18alb_:
n lhIn file included from ooe../src/s2/s2coords.hwn :_,n 105cNuu:
ollIn file included from nll../src/s2/base/logging.has :_btl21N e:

oCIn file included from o      n/usr/local/clang/include/absl/log/check.hn| n                      ^:du
l37il:
t
In file included from i      /usr/local/clang/include/absl/log/internal/check_impl.ho| :n                     ^In file included from 21*
s2/s2centroids.cc:
 :/usr/local/clang/include/absl/log/internal/check_op.ha18:b:
s461In file included from l:../src/s2/s2centroids.h_1:n:50u :
lIn file included from warning: l../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:
b25l:
  eIn file included from 461 ../src/s2/util/coding/coder.h | cA:oB36nS:
dL,In file included from 
_../src/s2/base/casts.hL      :O| 36G                                                         ^_:
I
NIn file included from T../src/s2/base/logging.hE/usr/local/clang/include/absl/base/nullability.h:R:21N257:
A:In file included from L23/usr/local/clang/include/absl/log/check.h_::D 37E:
Fnote: In file included from Iexpanded from macro 'absl_nullable'N/usr/local/clang/include/absl/log/internal/check_impl.hE
:_21  M:
A257/usr/local/clang/include/absl/log/internal/check_op.hK | E:#_506CdH:Ee1Cf:iK n_warning: eOtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] P
a_bS/usr/local/clang/include/absl/log/internal/check_op.hsT:lR498IIn file included from _:Ns2/s2closest_cell_query.ccGn_35E:u:X18l T:
lnote: EIn file included from Raexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'../src/s2/s2closest_cell_query.hNb(
:l
26e      :
   | In file included from ^498_../src/s2/s1angle.h
 | N: /usr/local/clang/include/absl/log/internal/check_op.hu28 :l:
 450lIn file included from  : a../src/s2/s2point.h25 bi:n:l27t  ev:
note: 
1In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      ,../src/s2/s2coder.h 
| :i                      ^n23  
t:
450 In file included from  | v/usr/local/clang/include/absl/status/status.h 2:, 67  :
 cIn file included from  o/usr/local/clang/include/absl/status/internal/status_internal.h n:xs,29t  x:
c,In file included from h /usr/local/clang/include/absl/strings/cord.hac:In file included from ro82s2/s2closest_point_query.cc*n:
s:t  In file included from c18haa/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
brs:In file included from *l23_../src/s2/s2closest_point_query.h :
n:aIn file included from o26nbns/usr/local/clang/include/absl/crc/crc32c.hl:
u:_In file included from l32n../src/s2/s1angle.hl:
o:/usr/local/clang/include/absl/strings/str_format.h nen28:xup:
r503lIn file included from t:l../src/s2/s2point.h)e
20:x      t:)27|   :
                        ^warning: {In file included from 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] ../src/s2/s2coder.h
/usr/local/clang/include/absl/base/nullability.h :: 23241   :
:503 In file included from 22 |  /usr/local/clang/include/absl/status/status.h : :   67 note:  F :
expanded from macro 'absl_nonnull'o In file included from 
r /usr/local/clang/include/absl/status/internal/status_internal.hm   :a241t 29 | R a:
# wIn file included from d\S
/usr/local/clang/include/absl/strings/cord.hei      :fn| k94i                                  ^(:
n
eTIn file included from  /usr/local/clang/include/absl/base/nullability.h*/usr/local/clang/include/absl/strings/internal/cordz_info.ha: :b241a31s:b:
l22s/usr/local/clang/include/absl/synchronization/mutex.h_:l:n _565onote: nexpanded from macro 'absl_nonnull':no
36nnu:  nl l241uwarning:   | l#type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_ld 
rNeaofw  )ni565n n  | /eu  a/l  Nblv
Oso      Lli| dI_                     ^ Nn
oUnTnn
lu      ol| cl                   ^k 
S_lN/usr/local/clang/include/absl/base/nullability.hoo:nw241n(:uS22ly:ln 
c      note: h| In file included from expanded from macro 'absl_nonnull'W                     ^s2/s2coords.cc
a
:  i18241t:
 | PIn file included from #a../src/s2/s2coords.hdr:ea105fmi:
snIn file included from *e../src/s2/base/logging.h  :aa21bb:
ssIn file included from ll/usr/local/clang/include/absl/log/check.h__:nn37uo:
lnIn file included from ln/usr/local/clang/include/absl/log/internal/check_impl.hau:bl21ll:
e /usr/local/clang/include/absl/log/internal/check_op.h _:wN463ao:in1tn:pu )lwarning:  ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A

B      S| L                       ^_463
A | TATBRSILB_ULTOEG__CIONLTDE;R
N      A| L                                   ^_
DE/usr/local/clang/include/absl/base/nullability.hF:I257N:E23_:M Anote: Kexpanded from macro 'absl_nullable'E
_C  H257E | C#Kd_eOfPi_nSeT RaIbNsGl__EnXuTlElRaNb(l
e       | _^N
ul/usr/local/clang/include/absl/log/internal/check_op.hl:a449b:l31e:
       | note:                       ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  449 |   extern template const char* absl_nonnull MakeCheckOpStriIn file included from ns2/s2closest_point_query.ccg:(18 :
 In file included from  ../src/s2/s2closest_point_query.h\:
26      :
| In file included from                               ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h:  67241:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n576u:l49l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l576l | 
        | v                     ^o
id TIn file included from rs2/s2coords.ccy:R18e:
mIn file included from o../src/s2/s2coords.hv:e105(:
bIn file included from a../src/s2/base/logging.hs:e21_:
iIn file included from n/usr/local/clang/include/absl/log/check.ht:e37r:
nIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hl::21::
P/usr/local/clang/include/absl/log/internal/check_op.he:r464T:h26r:e awarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
yn  c464h | *   a b sclo_nnsotn nuunlsli gsn)e;d
       c| h                                                ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | )#;d
e      f| i                         ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^In file included from 
s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from In file included from ../src/s2/s1angle.hs2/s2coords.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2coords.h::27105:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/base/logging.h::2321:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.h::6737:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.h::2921:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/cord.h::46494::
26In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:578/usr/local/clang/include/absl/base/nullability.h::45241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    578241 |  |  # dveofiidn eB laobcskl(_bnaosnen_uilnlt e_rNnoanln:u:lPle
r      T| h                     ^r
eadSIn file included from ys2/s2coords.ccn:c18h:
*In file included from  ../src/s2/s2coords.ha:b105s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
sIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h;:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                                            ^:
463:1/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note:   expanded from macro 'absl_nonnull'463
 | A  B241S | L#_dLeOfGi_nIeN TaEbRsNlA_Ln_oDnEnFuIlNlE __MNAoKnEn_uClHlE
C      K| _                     ^O
P_STRING_EXTERN(
In file included from       s2/s2closest_point_query.cc| :^18
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2closest_point_query.h::45026::
25In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
../src/s2/s2point.h:27  :
450In file included from  | ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h :x67,:
 In file included from x/usr/local/clang/include/absl/status/internal/status_internal.h,: 29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94 :
cIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.ha:r31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b580s:l34_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  )580
 |        |                          ^b
as/usr/local/clang/include/absl/base/nullability.he:_241i:n22t:e rnote: nexpanded from macro 'absl_nonnull'a
l:  :241P | e#rdTehfrienaed Saybnsclh_*n oanbnsull_ln u_lNloanbnluel lW
a      k| e                     ^u
p(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2coords.ccb:s18l:
_In file included from n../src/s2/s2coords.hu:l105l:
aIn file included from b../src/s2/base/logging.hl:e21 :
_In file included from N/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h                      ^:
465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2closest_point_query.cc:  18465:
 | In file included from A../src/s2/s2closest_point_query.hB:S26L:
_In file included from L../src/s2/s1angle.hO:G28_:
IIn file included from N../src/s2/s2point.hT:E27R:
NIn file included from A../src/s2/s2coder.hL:_23D:
EIn file included from F/usr/local/clang/include/absl/status/status.hI:N67E:
_In file included from M/usr/local/clang/include/absl/status/internal/status_internal.hA:K29E:
_In file included from C/usr/local/clang/include/absl/strings/cord.hH:EC94K:
_In file included from O/usr/local/clang/include/absl/strings/internal/cordz_info.hP:_31S:
T/usr/local/clang/include/absl/synchronization/mutex.hR:I581N:G38_:E Xwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RN(  c581o | n s t   v o ibda*s ea_bisnlt_enronnanlu:l:lP)e;r
T      h| r^e
ad/usr/local/clang/include/absl/log/internal/check_op.hS:y449n:c31h:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl_  n449o | n n uelxlt ewr)n; 
t      e| m                                     ^p
la/usr/local/clang/include/absl/base/nullability.ht:e241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en oanbnsull_ln oMnankuelClh e_cNkoOnpnSutlrli
n      g| (                     ^ 
  \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2closest_point_query.ccs:l18_:
nIn file included from o../src/s2/s2closest_point_query.hn:n26u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2coords.cc29::
18In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2coords.h94::
105In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/base/logging.h31::
21:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/check.h585::3720:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/log/internal/check_op.h:465:66  :585  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
voi  d465  | TArBaSnLs_(LMOuGH_oIwN TaEbRsNlA_Ln_oDnEnFuIlNlE _hMoAwK)E;_ C H/E/C Ku_sOePd_ SfToRrI NCGo_nEdXVTaErR-N>(Mcuotnesxt  tvroainds*f earb
s      l| _                   ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22):; 
      note: | expanded from macro 'absl_nonnull'                                                                 ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2coords.cc:In file included from 18s2/s2closest_point_query.cc:
:In file included from 18../src/s2/s2coords.h:
:In file included from 105../src/s2/s2closest_point_query.h:
:In file included from 26../src/s2/base/logging.h:
:In file included from 21../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2coder.h:
:/usr/local/clang/include/absl/log/internal/check_op.h23::
465In file included from :/usr/local/clang/include/absl/status/status.h66::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  586241: | 43#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a586b | s l _vnooindn uFlelr (_bNaosnen_uilnlt
e      r| n                     ^a
l::PIn file included from es2/s2coords.ccr:T18h:
rIn file included from e../src/s2/s2coords.ha:d105S:
yIn file included from n../src/s2/base/logging.hc:h21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hlIn file included from :ls2/s2centroids.cc465
::      181| :
:                                          ^In file included from  
../src/s2/s2centroids.hwarning: :/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]50:
:
241In file included from :../src/s2/s2point.h22  ::46525  | :
note: AIn file included from expanded from macro 'absl_nonnull'B../src/s2/util/coding/coder.hS
:L36  _:
241LIn file included from  | OIn file included from #G../src/s2/base/casts.hs2/s2closest_cell_query.ccd_::eI36N18f:
T:
iIn file included from EIn file included from Rn../src/s2/base/logging.he../src/s2/s2closest_cell_query.hN: :A21La26:
_b:
sIn file included from DIn file included from l/usr/local/clang/include/absl/log/check.hE../src/s2/s1angle.h_:F:n37I28o:
N:
En_In file included from MIn file included from An/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.hKu:l:E21_l27:
C /usr/local/clang/include/absl/log/internal/check_op.h_:
H:ENCIn file included from K507o../src/s2/s2coder.h_:On:n1P23u:_:
Sl lIn file included from Twarning: R
I/usr/local/clang/include/absl/status/status.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      N:
| G67_                     ^:
E  X
TIn file included from 507E/usr/local/clang/include/absl/status/internal/status_internal.h | R:AN29(B:
ScIn file included from Lo/usr/local/clang/include/absl/strings/cord.hn_s:Lt82 Ov:
oIn file included from GIn file included from is2/s2closest_point_query.cc_/usr/local/clang/include/absl/crc/internal/crc_cord_state.hd:I:*18N23T E:
R:
aIn file included from NIn file included from b../src/s2/s2closest_point_query.hsAl/usr/local/clang/include/absl/crc/crc32c.h_:L:_n26o32nC:
:
nHIn file included from Eu/usr/local/clang/include/absl/strings/str_format.hl../src/s2/s1angle.hC:l:K860)28_:;:
O43
In file included from P:      ../src/s2/s2point.h_ I| M:warning: ^P27Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
C:

hIn file included from /usr/local/clang/include/absl/log/internal/check_op.he../src/s2/s2coder.hc:k:  450_23G860::
T | ,25In file included from   :/usr/local/clang/include/absl/status/status.h > :f)67note: r
:
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i      In file included from 
e| /usr/local/clang/include/absl/status/internal/status_internal.hn  ^:d450
29  | :
 v/usr/local/clang/include/absl/log/internal/check_op.hoIn file included from  :i/usr/local/clang/include/absl/strings/cord.h 488d: : 94 32A:
 :bIn file included from x s/usr/local/clang/include/absl/strings/internal/cordz_info.h,note: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL': F
31xo,:
r   c/usr/local/clang/include/absl/synchronization/mutex.hm488o:nas | t590 t : cF40ihl:una rslwarning: i*htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](n 
Feao brs  lcmo590_ant | nsSt oie nenxxnkupp*llr li a)ccib
ots      n lM| s_tu                        ^n tc
hoae/usr/local/clang/include/absl/base/nullability.hnrx:n*(241u c:lao22lbn: ssl _sntunote: li expanded from macro 'absl_nonnull'vln
oakl  b,lae241
t  |       #in| adl                                          ^mee
ef #iM/usr/local/clang/include/absl/base/nullability.h#nu:Iet241m ea:pxb22l*s:( l  a_note:  b nexpanded from macro 'absl_nonnull'os 
nl n    _u241 nl |  ul# l ld _aeb Nfol ine nn  eu/  l* ali gb
 ns      \ol| 
r_                     ^      en
| do                               ^*n
/n)u/usr/local/clang/include/absl/base/nullability.hl :l{257 }:_
23N      :o|  n                                       ^note: n
expanded from macro 'absl_nullable'u
l/usr/local/clang/include/absl/base/nullability.hl:  
257257      : | | 23#                     ^:d
 enote: fexpanded from macro 'absl_nullable'i
ne   257a | b#sdle_fniunlIn file included from els2/s2coords.cca ba:lb18es:
 lIn file included from __../src/s2/s2coords.hNn:uu105ll:
llIn file included from aIn file included from a../src/s2/base/logging.hbs2/s2closest_cell_query.cclb::el2118 e:
:
_
In file included from In file included from N      /usr/local/clang/include/absl/log/check.h../src/s2/s2closest_cell_query.hu| ::l                      ^3726l
:
:
aIn file included from In file included from b/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1angle.hl::e2128
:
:
      In file included from /usr/local/clang/include/absl/log/internal/check_op.h| ../src/s2/s2point.h:                      ^:In file included from 502
27s2/s2centroids.cc::
:1In file included from 18:../src/s2/s2coder.h:
 :In file included from 23warning: ../src/s2/s2centroids.h:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:In file included from 
50/usr/local/clang/include/absl/status/status.h:
:In file included from   67../src/s2/s2point.h502:
: | In file included from 25A/usr/local/clang/include/absl/status/internal/status_internal.h:
B:SIn file included from L29_../src/s2/util/coding/coder.h:
L:In file included from O36/usr/local/clang/include/absl/strings/cord.hG:
:_In file included from I82N../src/s2/base/casts.hT:
:EIn file included from 36R/usr/local/clang/include/absl/crc/internal/crc_cord_state.hN:
A:In file included from L23_../src/s2/base/logging.hC:
H:In file included from E21/usr/local/clang/include/absl/crc/crc32c.hC:
:KIn file included from 32_/usr/local/clang/include/absl/log/check.hO:
P:/usr/local/clang/include/absl/strings/str_format.h_37:I:
867MIn file included from :P/usr/local/clang/include/absl/log/internal/check_impl.h60L::(21 C:
warning: h/usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e:
c507k:_1E  Q867:, |    warning: = type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]=e
)x
/usr/local/clang/include/absl/log/internal/check_op.hp      :l| i489^c:
i47t:/usr/local/clang/include/absl/log/internal/check_op.h  :F488note: o:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'r32
m:a t  note: S489expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i | 
n k (   s 488t  | r  _ cfioonnrlsmitan teT_ 1ic&no tnves1rt,ne axclop:rn :csFtoo nrTsm2ta& t cSvh2ia,nr k*cI omanpbslst*l  _canhbuaslrll*_a nbaolbnesn lun_lanlmo ens#n)#u
Il      lm| p                                                            ^le
(x p r/usr/local/clang/include/absl/base/nullability.ht e: x241 t: )22  : {   note:   expanded from macro 'absl_nonnull'  
       \241 
 |        # | d                                               ^ e
\f
i/usr/local/clang/include/absl/base/nullability.h      n:| e241                               ^ :
a22b:/usr/local/clang/include/absl/base/nullability.hs :l257note: _:expanded from macro 'absl_nonnull'n23o
:n   n241note: u | expanded from macro 'absl_nullable'l#
ld   e_257fN | io#nndene ufaliblns
el       _a| nb                     ^osn
ln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
lIn file included from es2/s2closest_cell_query.cc
:      18| :
                      ^In file included from 
../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2coords.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2coords.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h105::
29In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/cord.h21::
82In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h37::
23In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h21::
32/usr/local/clang/include/absl/log/internal/check_op.h:
:502/usr/local/clang/include/absl/strings/str_format.h::1869:: 40:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47  :869  | note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
str  _489f | o r m a t _ icnotnesrtn aTl1:&: Fvo1r,m actoSnisIn file included from nts2/s2centroids.cck :IT182m:
&pIn file included from  lv../src/s2/s2centroids.h*2: ,50 ac:
obIn file included from ns../src/s2/s2point.hsl:t_25 nc:
ohIn file included from an../src/s2/util/coding/coder.hrn*: u36alb:
lsIn file included from l ../src/s2/base/casts.h_s:nio36nn:
nkIn file included from u_../src/s2/base/logging.hl;:l
21       :
e| xIn file included from p                                       ^/usr/local/clang/include/absl/log/check.hr
:t37e/usr/local/clang/include/absl/base/nullability.h:
x:In file included from t241)/usr/local/clang/include/absl/log/internal/check_impl.h :{: 2221 ::
   /usr/local/clang/include/absl/log/internal/check_op.hnote:  :expanded from macro 'absl_nonnull'\507

:      1  | :241                                              ^  | 
warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.hd
:e241/usr/local/clang/include/absl/log/internal/check_op.hf::i22497n::e 32 :note: a expanded from macro 'absl_nonnull'b
note: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'  l
241_ | n#o  dne497nf | ui l nlei  an_blNsionln_en ncouonlnnulsl
lt       _eN| xo                     ^pnr
n ucloln
s      t|                       ^c
har* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _In file included from Ns2/s2closest_point_query.ccu:l18l:
aIn file included from b../src/s2/s2closest_point_query.hl:e26
:
      In file included from | ../src/s2/s1angle.h                      ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2centroids.cc::6718:
In file included from :
In file included from s2/s2coords.ccIn file included from /usr/local/clang/include/absl/status/internal/status_internal.h:../src/s2/s2centroids.h:18:29:
50:
In file included from :
In file included from ../src/s2/s2coords.hIn file included from /usr/local/clang/include/absl/strings/cord.h:../src/s2/s2point.h:105:94:
25:
In file included from :
In file included from ../src/s2/base/logging.hIn file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:../src/s2/util/coding/coder.h:21:31:
36:
In file included from :
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/check.hIn file included from ::../src/s2/base/casts.h62437:::
3668In file included from :
:/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from  :../src/s2/base/logging.h21warning: ::
21'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
/usr/local/clang/include/absl/log/internal/check_op.h
In file included from :/usr/local/clang/include/absl/log/check.h502::371  :
:624In file included from   | /usr/local/clang/include/absl/log/internal/check_impl.hwarning:  :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 21
e:
x/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.hp::l497507i::c321i::t   note: warning: Mexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u

te/usr/local/clang/include/absl/log/internal/check_op.hx  :L497498o | :c 35k :(i nMnote: luexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'it
neex   &c498 o | mn u s t e Ax Bp rSi Lcn_tIo nvNs1T,tE  RicNhnAtaLr *_v Aa2Tb,s Tclo_nnRsutI lBclUahTabrE*l_eC  AanPbaTmsUleR#_E#nDoI_nmBnpYlu(l(tl h  i es x) p )r 
t e       x | t                                                                    ^~~~ )  
{            \ 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23\:
       | note:                                   ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   /usr/local/clang/include/absl/synchronization/mutex.ha241:b | 635s#l:d_29ne:ufl liwarning: antype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eb
 laeb   _s635lN_ | un lo lnenaxubllplel 
_iN      co| in                      ^tn
 uMlult
e      x| L                     ^In file included from o
s2/s2coords.ccc:k18(:
MIn file included from u../src/s2/s2coords.ht:e105x:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
m/usr/local/clang/include/absl/log/internal/check_op.hu:)502 :A1B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
XC/usr/local/clang/include/absl/log/internal/check_op.hL:U498S:I35V:E _note: Lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'O
CK_  F498U | N C T I O N (imnut) 
v      1| ,                            ^ 
int/usr/local/clang/include/absl/base/nullability.h :v2412:,22 :c onote: nexpanded from macro 'absl_nonnull's
t   c241h | a#rd*e faibnsel _anbosnln_unloln neuxlplr t_eNxotn)n u{l l 
        |                       ^ 
           \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2closest_point_query.cc_:n18o:
nIn file included from n../src/s2/s2closest_point_query.hu:l26l:
 In file included from _../src/s2/s1angle.hN:o28n:
nIn file included from u../src/s2/s2point.hl:l27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_In file included from ns2/s2closest_point_query.ccu:l18l:
aIn file included from b../src/s2/s2closest_point_query.hl:e26 :
sIn file included from 1../src/s2/s1angle.h,: 28c:
oIn file included from n../src/s2/s2point.hs:t27 :
cIn file included from h../src/s2/s2coder.ha:r23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94 :
sIn file included from 2/usr/local/clang/include/absl/strings/internal/cordz_info.h,:
31      :
|                 ^/usr/local/clang/include/absl/synchronization/mutex.h
:710:/usr/local/clang/include/absl/base/nullability.h74::257 :23warning: : 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
note: expanded from macro 'absl_nullable'
  257   | 710# | d e feixnpel iacbistl _WnruiltlearbMluet e_xNLuolclka(bMluet
e      x| &                      ^ 
mu ABSL_INIn file included from Ts2/s2centroids.ccE:R18N:
AIn file included from L../src/s2/s2centroids.h_:A50T:
TIn file included from R../src/s2/s2point.hI:B25U:
TIn file included from E../src/s2/util/coding/coder.h_:C36A:
PIn file included from T../src/s2/base/casts.hU:R36E:
DIn file included from _../src/s2/base/logging.hB:Y21(:
tIn file included from h/usr/local/clang/include/absl/log/check.hi:s37):
)In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                                                         ^~~~:

/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl/usr/local/clang/include/absl/synchronization/mutex.h_:n718u:l35l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 s1  ,718  | c o nesxtp lcihcairt*  Warbisl_ntuelrlMaubtleex Lso2c,k
(      M| u                                              ^t
ex/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# dmeuf)i
n      e|                                    ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   _241N | u#ldleafbilnee
       a| b                      ^s
l_nonnIn file included from us2/s2centroids.ccl:l18 :
_In file included from N../src/s2/s2centroids.ho:n50n:
uIn file included from l../src/s2/s2point.hl:
25      :
| In file included from                      ^../src/s2/util/coding/coder.h
:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const In file included from cs2/s2closest_point_query.cch:a18r:
*In file included from  ../src/s2/s2closest_point_query.ha:b26s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
eIn file included from x../src/s2/s2coder.hp:r23t:
eIn file included from x/usr/local/clang/include/absl/status/status.ht:)67;:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
722:74  :241  | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efine   722a | b s le_xnpolnincuiltl  W_rNiotnenruMlult
e      x| L                     ^o
ck(Mutex& mu ABSL_INTIn file included from Es2/s2centroids.ccR:N18A:
LIn file included from _../src/s2/s2centroids.hA:T50T:
RIn file included from I../src/s2/s2point.hB:U25T:
EIn file included from _../src/s2/util/coding/coder.hC:A36P:
TIn file included from U../src/s2/base/casts.hR:E36D:
_In file included from B../src/s2/base/logging.hY:(21t:
hIn file included from i/usr/local/clang/include/absl/log/check.hs:)37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                                                         ^~~~21
:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_n/usr/local/clang/include/absl/synchronization/mutex.hu:l731l:a35b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
heck  s731t | r c mepxfpallisceiItm pWlr(i
t      e| r            ^M
ut/usr/local/clang/include/absl/base/nullability.he:x257L:o23c:k (note: Mexpanded from macro 'absl_nullable'u
te  x257* |  #adbesfli_nneo nanbuslll_ nmuul,l acbolnes t_ NCuolnldaibIn file included from tls2/s2coords.ccie:o
18n      &:
|  In file included from c                      ^../src/s2/s2coords.ho
:n105d:
)In file included from In file included from 
../src/s2/base/logging.hs2/s2centroids.cc      ::| 2118:
                                  ^:
In file included from 
In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2centroids.h::/usr/local/clang/include/absl/base/nullability.h3750::
:
241In file included from In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h22:::2125 :
:
note: /usr/local/clang/include/absl/log/internal/check_op.hIn file included from expanded from macro 'absl_nonnull':../src/s2/util/coding/coder.h
503::36  1:
241:In file included from  |  ../src/s2/base/casts.h#:warning: d36type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e:

fIn file included from i../src/s2/base/logging.hn:  e21503 :
 | aIn file included from AbB/usr/local/clang/include/absl/log/check.hSsL:l_37L_O:
nGIn file included from _o/usr/local/clang/include/absl/log/internal/check_impl.hInN:nT21uEl:
RlN/usr/local/clang/include/absl/log/internal/check_op.hA L:__515NC:HoE17nC:nK u_warning: Oltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Pl_
I
M      P  L| (515                     ^C | 
h e c k _cNoEn,s t! =c)h
a      r| *^ 
abs/usr/local/clang/include/absl/log/internal/check_op.hl:_488n:u32l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
e s  1488, |   c oinnslti nceh acro*n satbesxlp_rn uclolnasbtl ec hsa2r,*
       a| b                ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u257l:l23a:b lnote: eexpanded from macro 'absl_nullable' 
na  m257e | ###dIemfpiln(e   a b s l _ n u l l a b l e   _ N u l\l
a      b| l                               ^e

      |                       ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2centroids.cc257: | 18#:
dIn file included from e../src/s2/s2centroids.hf:i50n:
eIn file included from  ../src/s2/s2point.ha:bIn file included from 25ss2/s2contains_vertex_query.ccl:
_:In file included from n18u../src/s2/util/coding/coder.h:
l:lIn file included from a36b../src/s2/s2contains_vertex_query.h:
l:In file included from e21../src/s2/base/casts.h :
:_In file included from N36/usr/local/clang/include/absl/container/btree_map.hu:
l:lIn file included from a67b../src/s2/base/logging.h:
l:e/usr/local/clang/include/absl/container/internal/btree_container.h
21:      :
523| In file included from :                      ^/usr/local/clang/include/absl/log/check.h31
::37 :
In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:515  :52347 | :  In file included from  warning: s2/s2coords.cc type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :
 18 :
   In file included from  515 ../src/s2/s2coords.h |  : In file included from  105 s2/s2closest_point_query.cc  :
 : In file included from   18c../src/s2/base/logging.h :
o: In file included from  n21s../src/s2/s2closest_point_query.hf:
t: aIn file included from l26c/usr/local/clang/include/absl/log/check.hs:
eh,a :fIn file included from arl37s../src/s2/s1angle.he*):
: ;aIn file included from b28s
/usr/local/clang/include/absl/log/internal/check_impl.h:
l      :In file included from _| n21u../src/s2/s2point.h                              ^:
l:
/usr/local/clang/include/absl/log/internal/check_op.hl27:a:
/usr/local/clang/include/absl/container/internal/btree_container.h503bIn file included from ::l../src/s2/s2coder.h4961e::: 239 s:
1:warning: In file included from , type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h 
note: :cmacro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/log/internal/check_op.h67o
::
n489In file included from s:  /usr/local/clang/include/absl/status/internal/status_internal.ht47496: : | 29c #:
hnote: adrIn file included from *expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e/usr/local/clang/include/absl/strings/cord.h 
f:ia94nb  s:
e489lIn file included from   | _/usr/local/clang/include/absl/strings/internal/cordz_info.hnA B:u S 31lL _:
Il/usr/local/clang/include/absl/synchronization/mutex.h N a:Tcbo801nEl:sReN20AtL : _sX (T21warning: F,&type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
n 
v      1c| ,,                                                 ^ c801
Co | na/usr/local/clang/include/absl/base/nullability.hl s:l t257 eC:Teo,23 2n&: Kd vQ2uianote: l,,t expanded from macro 'absl_nullable'M i
oQcun  oa(l257nb,o | s to #cKhladVe frian(e* l* aaubesalb_,nbosn sln_uMlVnall_unlounln elue,xalb lpel.r t e._.N)fxut u l )  n{l  ca \ )b(
v l      eo | 
        ^i\      
d
| *                             ^| a
                                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:In file included from n241s2/s2centroids.ccu::l2218l::
a In file included from b../src/s2/s2centroids.hnote: i:expanded from macro 'absl_nonnull'l50
i:
tIn file included from   y../src/s2/s2point.h241_: | u25#n:
dkIn file included from en../src/s2/util/coding/coder.hfo:iw36nne:
) In file included from ,a../src/s2/base/casts.hb
:s      36l| :
_                   ^In file included from n
../src/s2/base/logging.ho:n21/usr/local/clang/include/absl/base/nullability.hn:
:uIn file included from l241/usr/local/clang/include/absl/log/check.hl:: 2237_::
N In file included from o/usr/local/clang/include/absl/log/internal/check_impl.hnote: n:expanded from macro 'absl_nonnull'n21
u:
l/usr/local/clang/include/absl/log/internal/check_op.h  l:241
516 |       :#| 17d                     ^:e
 fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e   a516b | s l _ n ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull In file included from es2/s2closest_point_query.ccx:p18r:
tIn file included from e../src/s2/s2closest_point_query.hx:t26):
;In file included from 
../src/s2/s1angle.h      :| 28                ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27:/usr/local/clang/include/absl/container/internal/btree_container.h:
241:In file included from :522../src/s2/s2coder.h22:::323 ::
 note: In file included from warning: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
:
67  241 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.h  :52229 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.hA:eB94Sf:
LiIn file included from _n/usr/local/clang/include/absl/strings/internal/cordz_info.hIeN: T31aE:
bR/usr/local/clang/include/absl/synchronization/mutex.hsN:AlIn file included from 801L_s2/s2coords.cc:_n:o45X18n:(:
n iIn file included from uwarning: n../src/s2/s2coords.hltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s:l
e105 r:
_t  _In file included from N801o../src/s2/base/logging.ho | r:n _21an :
suCIn file included from slo/usr/local/clang/include/absl/log/check.hiln:dg
n37i      ,:
t|  In file included from ii                     ^/usr/local/clang/include/absl/log/internal/check_impl.hno
:sn21e(:
rb/usr/local/clang/include/absl/log/internal/check_op.hto:_oo503lr:_In file included from  1as2/s2centroids.cc(:s:s* 18ia:
bwarning: gIn file included from nstype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2centroids.h_li
:_m/usr/local/clang/include/absl/log/internal/check_op.hp50n:l:
,o497In file included from  n:../src/s2/s2point.hcn32:ou:25nls :
ltIn file included from note:   ../src/s2/util/coding/coder.h&expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'f:,
u36 nc:
oc  )In file included from n497(../src/s2/base/casts.hs | v:t o36  i:
&idnIn file included from ,*l../src/s2/base/logging.hi
 :n      a21e| b  ^:
 s
lIn file included from _c/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/btree_container.hno:n:u37s509l:
t:lIn file included from e52a/usr/local/clang/include/absl/log/internal/check_impl.hx:b:p i21rnote: l:
i expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/internal/check_op.htc
:yo517_n:s  u13t509n:  | k   cnhwarning:  oatype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r w
n* )     , a517
 b |       c s| oAlB                                            ^Sn_s
tLn /usr/local/clang/include/absl/base/nullability.hc_u:hIlN289Talr:*Ea34 Rb:aNl bAenote: sL _expanded from macro 'absl_nullability_unknown'AlTnT
_aRmn  Ieu289B#l | lU##aTIdbEm_eClpfAel iP(CnT Uhe Re  Eca Dkb _sBs tYrlc (_an tshu eil csl) map) bt,  ir   lu   ie  tI m y p l_(\ 
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       n      |  k|                                ^ n            ^
 o
w /usr/local/clang/include/absl/base/nullability.hn/usr/local/clang/include/absl/base/nullability.h : : 257_257 :N: 23u23 :l:  l  note: _note:  expanded from macro 'absl_nullable' uexpanded from macro 'absl_nullable'
 n
\  s  
257p257       | e | | #c#                                                   ^ddi
eefffiiiennde/usr/local/clang/include/absl/container/internal/common.he
 :       a32a| b:b                                 ^s9s
l:l_ _nnote: numacro 'ABSL_INTERNAL_IF_false' defined hereul
llla   ba32lb | el In file included from #e_s2/s2closest_point_query.ccd N:ue_18Nlfl:
auiIn file included from nbl../src/s2/s2closest_point_query.hell:a e26bA
:
lB      In file included from eS| ../src/s2/s1angle.h                      ^
L:_
      28I| :
                      ^NIn file included from In file included from 
T../src/s2/s2point.hs2/s2centroids.ccE::R2718N:
:
AIn file included from In file included from L../src/s2/s2coder.h../src/s2/s2centroids.h_::I2350F:
In file included from :
_In file included from s2/s2coords.ccIn file included from f/usr/local/clang/include/absl/status/status.h:../src/s2/s2point.ha:18:l67s:
25:
eIn file included from :
In file included from (../src/s2/s2coords.hIn file included from /usr/local/clang/include/absl/status/internal/status_internal.hi:../src/s2/util/coding/coder.h:f105:29_:
36:
sIn file included from :
In file included from a../src/s2/base/logging.hIn file included from /usr/local/clang/include/absl/strings/cord.ht:../src/s2/base/casts.h:i21:94s:
36:
fIn file included from :
In file included from i/usr/local/clang/include/absl/log/check.hIn file included from /usr/local/clang/include/absl/strings/internal/cordz_info.he:../src/s2/base/logging.h:d37:31,:
21:
 In file included from :
/usr/local/clang/include/absl/synchronization/mutex.h./usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :.:/usr/local/clang/include/absl/log/check.h802.21::):
3719 /usr/local/clang/include/absl/log/internal/check_op.h:
:_:In file included from  _503/usr/local/clang/include/absl/log/internal/check_impl.hwarning: V::type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]A121
_::
A /usr/local/clang/include/absl/log/internal/check_op.h  R:warning: 802G518type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | S:
 _17 /usr/local/clang/include/absl/log/internal/check_op.h_: :
  498      warning:  :| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 35        ^
 :
     note: 518 expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' |  
   v    oIn file included from 498cis2/s2contains_vertex_query.cc | od: n *18 s t :
 a In file included from c hb../src/s2/s2contains_vertex_query.hianst:rl 21v*1_,:
  innIn file included from aut/usr/local/clang/include/absl/container/btree_map.h bvsll:_2l67an,u l:
lbcio/usr/local/clang/include/absl/container/internal/btree_container.hnal:isbt522 tly:_ceh3u asr:*n 1a k,b warning: nsclopassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]no_
nswot   nn522c n | uha l lAarrg )eB*S;x
 Lapbrstl      __e| n                  ^Ixut
)Nl l{a T /usr/local/clang/include/absl/base/nullability.hbElRe  :sN 289 2 A :,L
_ X34(      i :| n s                 ^ e
rnote:  t /usr/local/clang/include/absl/base/nullability.h expanded from macro 'absl_nullability_unknown'_:o 
 257 r:  \_23289
a:s | s      i g#| dnote: enf,                                  ^ expanded from macro 'absl_nullable'ii
n
nes/usr/local/clang/include/absl/base/nullability.h   e:r257a241t | b:s_#o22rld_e:_nf iaunote: nexpanded from macro 'absl_nonnull'es salb
silgl  an__241ibmnp | li,u#lll dcioaebtlnfsye_itn eu  _nNau&l,lkabb lnsolc_enwonn
sot       _nN u| ln&u,l                      ^ll
_
       _uN| n  ^so
pIn file included from ne/usr/local/clang/include/absl/container/internal/btree_container.hcs2/s2centroids.ccn:uil:l511
f18:      i:
52| e                     ^In file included from :d
../src/s2/s2centroids.h 
:      note: 50expanded from macro 'ABSL_INTERNAL_X'| :

                                 ^In file included from 
../src/s2/s2point.h:  25511:
 | In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from A../src/s2/base/logging.hB:S21L:
_In file included from In file included from I/usr/local/clang/include/absl/log/check.hNs2/s2closest_point_query.cc:T:E3718R:
N:
In file included from AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_../src/s2/s2closest_point_query.h:A:21T26T:
R:
/usr/local/clang/include/absl/log/internal/check_op.hIIn file included from :B../src/s2/s1angle.h518U::T28E47:
_:CIn file included from  A../src/s2/s2point.hwarning: P:Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]U27R
E:
DIn file included from _  ../src/s2/s2coder.hB518Y: | (23 t:
 hIn file included from  i sc)/usr/local/clang/include/absl/status/status.h)o:)n67s :
t   In file included from  c/usr/local/clang/include/absl/status/internal/status_internal.hh a : r 29 * :
  aIn file included from  b/usr/local/clang/include/absl/strings/cord.hs l : _94 n:
u l In file included from l /usr/local/clang/include/absl/strings/internal/cordz_info.h a:b 31 l:
 e/usr/local/clang/include/absl/synchronization/mutex.h  s\1
:,       814c| :o                                                   ^n20s
:t /usr/local/clang/include/absl/container/internal/common.h :cwarning: h32atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:r
*9 :a   bnote: s814macro 'ABSL_INTERNAL_IF_false' defined herel | _
 n u   Cl32ol | n#addbiletfiieon nse(2 ,A
bB      oS| oL                                              ^_lI
 N(/usr/local/clang/include/absl/base/nullability.hT*E:RaN257AbL:s_l23I_F:_nf oanote: nexpanded from macro 'absl_nullable'lns
uel  (li257f  | f_#udsnaect)fiisnfei (eaTbd*,s l a._bn.s.u)ll __ln_aubVlAl_lea A_RNbGuilSl_lia_t
byl      _e| u        ^
n
      k| n                      ^o
wn),
      In file included from | s2/s2centroids.cc:                   ^18
:
In file included from ../src/s2/s2centroids.h/usr/local/clang/include/absl/base/nullability.h:50:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h::36241:
:In file included from 22../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h | :In file included from #21s2/s2contains_vertex_query.ccd:
:e/usr/local/clang/include/absl/log/internal/check_op.h18f::
i519In file included from n:../src/s2/s2contains_vertex_query.he17: :21a :
bIn file included from warning: s/usr/local/clang/include/absl/container/btree_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
_67n:
  o519/usr/local/clang/include/absl/container/internal/btree_container.hn | :n 525u :l 30l : c _owarning: Nnpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]os
ntn   uc525hl | la 
r        *|                        ^a 
 b s l _ n In file included from o s2/s2closest_point_query.ccn :n 18u :
l In file included from  l ../src/s2/s2closest_point_query.h f:ea26lx:
speIn file included from r,../src/s2/s1angle.ht :te28rx:
utIn file included from )e../src/s2/s2point.h;):
;27      
:
|       In file included from                 ^| ../src/s2/s2coder.h                             ^
:
23/usr/local/clang/include/absl/base/nullability.h:
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from :241/usr/local/clang/include/absl/status/status.h496:::22679::
: In file included from  note: /usr/local/clang/include/absl/status/internal/status_internal.hnote: expanded from macro 'absl_nonnull':macro 'ABSL_INTERNAL_X' defined here
29
:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h |   :#49694d | :
#eIn file included from fd/usr/local/clang/include/absl/strings/internal/cordz_info.hei:nf31ie:
 n/usr/local/clang/include/absl/synchronization/mutex.hae:b 814As:lB42S_:nL _owarning: nItype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]Nn
TuElR  lN814 A | _L N_ oXCn(onFnuudlniclt,
i       Coa| n                     ^(l
lbeoeo,l  K(Q*uaabls,lIn file included from  _Ms2/s2centroids.ccnQ:ou18na:
nlIn file included from u,../src/s2/s2centroids.hl :lK50 V:
faIn file included from luu../src/s2/s2point.hne:c,25) :
(MIn file included from TV../src/s2/util/coding/coder.h*a: lau36be:
s,In file included from l ../src/s2/base/casts.h_.:n.36u.:
l)In file included from l ../src/s2/base/logging.ha :b 21i :
l In file included from i\/usr/local/clang/include/absl/log/check.ht
:y      37_| :
u        ^In file included from n
/usr/local/clang/include/absl/log/internal/check_impl.hk:n21o:
w/usr/local/clang/include/absl/log/internal/check_op.hn:)520,:
13      :|                                           ^warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:289  :52034 | :c onote: nexpanded from macro 'absl_nullability_unknown's
t c  h289a | r#*d eafbisnle_ naublslla_bnluel lCahbeiclkisttyr_cuanskencomwpnf a_lNsuelIlm_puln(s
p      e| c            ^i
fi/usr/local/clang/include/absl/base/nullability.he:d257
:      23| :                                 ^ 
note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2closest_point_query.cca:b18s:
lIn file included from _../src/s2/s2closest_point_query.hn:/usr/local/clang/include/absl/container/internal/btree_container.hu26:l:
524lIn file included from a:../src/s2/s1angle.hb3:l:28e :
 In file included from warning: _../src/s2/s2point.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N:
u27l:
lIn file included from   a../src/s2/s2coder.hb524:l | 23e 
:
       In file included from A| /usr/local/clang/include/absl/status/status.hB                      ^S:L
67_:
IIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from T:Es2/s2centroids.cc29R::
N18In file included from A:
/usr/local/clang/include/absl/strings/cord.hLIn file included from :_../src/s2/s2centroids.h94X::
(50In file included from i:
/usr/local/clang/include/absl/strings/internal/cordz_info.hnIn file included from :s../src/s2/s2point.he31rt:
_o/usr/local/clang/include/absl/synchronization/mutex.hr:_815a:s16:s:i25 g:
warning: nIn file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension],../src/s2/util/coding/coder.h
 :i36n  s:
e815In file included from r | t../src/s2/base/casts.h _: o36r :
_ aIn file included from s ../src/s2/base/logging.hs :i 21g n:
_ iIn file included from  m p/usr/local/clang/include/absl/log/check.h l:T,37 *:
c In file included from ao/usr/local/clang/include/absl/log/internal/check_impl.hbn:sst21l :
&_/usr/local/clang/include/absl/log/internal/check_op.h,n :cuo521ln:ls17ta: b &iwarning: ,ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
i
      t| y  ^  _
521u | n /usr/local/clang/include/absl/container/internal/btree_container.hk :n 509o w:cno52 n:as rtnote:  gexpanded from macro 'ABSL_INTERNAL_X'c)h
;a
r        *|  509               ^a | 
b s /usr/local/clang/include/absl/base/nullability.hl :_ n289 u :l 34 l : aA bBnote: lSexpanded from macro 'absl_nullability_unknown'eL _sI1
N,T E  cRoNn289sAtL |  #_cdAehTfTaiRrIn*Be U aTaEbb_ssllC_A_nnPuulTllUlaRabEblDe_ BiYs(l2tih,tiy
s_      )u| )n                ^,k
 n o /usr/local/clang/include/absl/base/nullability.hw :n 257  :_ 23N :u  l note: l expanded from macro 'absl_nullable'_ 
u n   s 257p  | e# d ec fi if ni ee  d a
\b      
s|       l                                 ^| _
                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl:a32b:l9e:  _note: Nmacro 'ABSL_INTERNAL_IF_false' defined hereu
lla   b32l | e#
d      e| f                      ^i
nIn file included from es2/s2closest_point_query.cc :A18B:
SIn file included from In file included from L../src/s2/s2closest_point_query.hs2/s2centroids.cc_:I:26N18:
T:
EIn file included from In file included from R../src/s2/s1angle.hN../src/s2/s2centroids.h:A:L2850_:
:
IIn file included from FIn file included from _../src/s2/s2point.h../src/s2/s2point.hf:a:27l25s:
e:
In file included from (In file included from ../src/s2/s2coder.hi../src/s2/util/coding/coder.hf::_23s36:
a:
tIn file included from iIn file included from s/usr/local/clang/include/absl/status/status.h../src/s2/base/casts.hf::i6736e:
d:
In file included from ,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h.:.:29.21):
:
 In file included from In file included from _/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h_:V:94A37_:
A:
RIn file included from In file included from G/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.hS::_31_21:

:
      /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h| ::        ^830521
::1447::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

In file included from s2/s2contains_vertex_query.cc:    18830521:
 |  | In file included from   ../src/s2/s2contains_vertex_query.h  :  21  :
 cIn file included from  o/usr/local/clang/include/absl/container/btree_map.hbn:os67to :
lc/usr/local/clang/include/absl/container/internal/btree_container.h h:(a524r**:a 3ba:sb lswarning: l_passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_nn
ounln  lua524lb | l le   Asf1Bu,Sn Lc_c)IoNnT(EsTtR*N  cAaLbhs_alr_X*n (uialnbslsealrb_tin_luoirltl_yaas_sbulingknen,  oisw2nns,)
,e      r
| t                                              ^_      
o| r/usr/local/clang/include/absl/base/nullability.h             ^_:a
s257s:i23g/usr/local/clang/include/absl/base/nullability.h:n:_ 241i:mnote: 22expanded from macro 'absl_nullable'p:l
 ,  note:  257expanded from macro 'absl_nonnull'c | o
#nds  et241f  | i&#,d necef ionnaesb satl _&b,nsu
lll      _a| n  ^bol
nen/usr/local/clang/include/absl/container/internal/btree_container.h u_:Nlu511lll: a52_b:Nl eonote: 
nexpanded from macro 'ABSL_INTERNAL_X'      n
| u                      ^l
  l511
 |        | In file included from                       ^s2/s2centroids.cc 
: 18 :
 In file included from  ../src/s2/s2centroids.hIn file included from  :s2/s2closest_point_query.cc 50: :
18AIn file included from :
B../src/s2/s2point.hSIn file included from :L../src/s2/s2closest_point_query.h25_::
I26In file included from N:
../src/s2/util/coding/coder.hTIn file included from :E../src/s2/s1angle.h36R::
N28In file included from A:
../src/s2/base/casts.hLIn file included from :_../src/s2/s2point.h36In file included from A::
s2/s2coords.ccT27In file included from :T:
../src/s2/base/logging.h18RIn file included from ::
I../src/s2/s2coder.h21In file included from B::
../src/s2/s2coords.hU23In file included from :T:
/usr/local/clang/include/absl/log/check.h105EIn file included from ::
_/usr/local/clang/include/absl/status/status.h37In file included from C::
../src/s2/base/logging.hA67In file included from :P:
/usr/local/clang/include/absl/log/internal/check_impl.h21TIn file included from ::
U/usr/local/clang/include/absl/status/internal/status_internal.h21In file included from R::
/usr/local/clang/include/absl/log/check.hE29/usr/local/clang/include/absl/log/internal/check_op.h:D:
:37_In file included from 522:
B/usr/local/clang/include/absl/strings/cord.h:In file included from Y:17/usr/local/clang/include/absl/log/internal/check_impl.h(94::t:
 21hIn file included from :
warning: i/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:):)
50431)::
   1/usr/local/clang/include/absl/synchronization/mutex.h522 :: |   830 warning:  : type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 36 
 :  c    o504nwarning:   | stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t A 
 Bc S L _h  a rL*830  O  | aGb_ I s N    lT E _ nRo n nN \uAlb
oLl      o_ C| leHx                                                   ^p E(
*rCtKa_/usr/local/clang/include/absl/container/internal/common.hOebxs:Ptl)31__;:
In9      Mo:n| P                ^ nL
note: u(macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/base/nullability.hlC
:lh241 e   :fc3122uk | :n_# dcLnote: Eexpanded from macro 'absl_nonnull',e)
 f<i(n  =Te241 )*
 | A Ba      #SdLb| se_fI^Nli
nTe_E/usr/local/clang/include/absl/log/internal/check_op.hR na:NuAb488slL:_ll_32IaFn:ob_ tnrinote: lnuuexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'liet
l(y i  f__488_uN | s noan nktniouinswfllniile
)nd      ,,e|   c
                     ^.o      n
.| s.                                   ^t)
e x/usr/local/clang/include/absl/base/nullability.hpi:rf289 _:cs34oa:tn isnote: stexpanded from macro 'absl_nullability_unknown'f 
iceh  da289
r |       *#|  d        ^ae
bfsiln_en ualblsalb_lneu In file included from lns2/s2contains_vertex_query.ccal:ma18eb:
#iIn file included from #l../src/s2/s2contains_vertex_query.hIi:mt21py:
l_In file included from (u/usr/local/clang/include/absl/container/btree_map.h n: k67 n:
 o/usr/local/clang/include/absl/container/internal/btree_container.h w: n524  : _3 N: u  lwarning:  l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] _
 u n s p    e524\c | i
 f       i| Ae                               ^Bd
S
L/usr/local/clang/include/absl/base/nullability.h_      :I| 257N                                 ^:T
23E:R Nnote: Aexpanded from macro 'absl_nullable'L
_X  (257i | n#sdeerfti_noer _aIn file included from abs2/s2closest_point_query.ccss:ls18_i:
ngIn file included from nu../src/s2/s2closest_point_query.h,l: l26ia:
nbIn file included from sl../src/s2/s1angle.hee:r 28t_:
_NIn file included from uo../src/s2/s2point.hlr:l_27aa:
sbIn file included from ls../src/s2/s2coder.hei:
g23      n:
_| In file included from                       ^i/usr/local/clang/include/absl/status/status.h
m:p67l:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h :In file included from &94,s2/s2coords.cc:
 :In file included from c18/usr/local/clang/include/absl/strings/internal/cordz_info.ho:
:nIn file included from 31s../src/s2/s2coords.h:
t:/usr/local/clang/include/absl/synchronization/mutex.h 105:&:
831,In file included from :
../src/s2/base/logging.h46      ::| 21   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.h  
:52537 | :
    In file included from 831 /usr/local/clang/include/absl/log/internal/check_impl.h |  :  21  :
  /usr/local/clang/include/absl/log/internal/check_op.h  :  504  :t 1y :p  e warning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a 
m e/usr/local/clang/include/absl/log/internal/check_op.h  :faa489bl:ss47le::, : note: ttexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'yr
puee_)  i;489d
 | e       n|  t                  ~~~~~~~~~~~~ i 
t y </usr/local/clang/include/absl/container/internal/btree_container.hcT:o>511n::s:47tt: y Tpnote: 1eexpanded from macro 'ABSL_INTERNAL_X'&*
  va1b  ,s511 l | c_ on nu sl tl  a Tb 2i &l  i vtA2yB,_ SuLcn_okInnNsoTtwE ncRh
aNr      A*| L                                              ^_aA
TbTsR/usr/local/clang/include/absl/base/nullability.hlI:B_U289nToEn:n_34CuA:Pl Tlnote:  Uexpanded from macro 'absl_nullability_unknown'eR
ExDp  r_289tB | eY#x(dtteh)fi i{sn )e )  a )b  \ s 
 l       _ | n                                               ^ u 
l l /usr/local/clang/include/absl/base/nullability.ha :b 241 i : l 22i : t  y note: _ expanded from macro 'absl_nonnull' u
 n\  k
241n       | o| #wd                                              ^~~~ne
 f_iNnuel la_busnls_pneocninfuileld 
_      N| o                                 ^n
null
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_527n:o30n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
 ob  j527e | c t , 
        |           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 : In file included from   s2/s2coords.ccnote:  :expanded from macro 'absl_nonnull' 18t
:
rIn file included from   u../src/s2/s2coords.he241:, | 105 #f:
adIn file included from le../src/s2/base/logging.hsf:ei)21n;:

eIn file included from        /usr/local/clang/include/absl/log/check.h| a:                             ^b37
s:
l/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from _:/usr/local/clang/include/absl/log/internal/check_impl.hn496:o:21n9:
n:/usr/local/clang/include/absl/log/internal/check_op.hu :l504note: l:macro 'ABSL_INTERNAL_X' defined here 1
_:N o  warning: n496type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n | 
u#l/usr/local/clang/include/absl/log/internal/check_op.hdl:
e497f      i:n| 32                     ^e: 
A Bnote: Sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'L
_INT  E497R | N A Li_nIn file included from Xls2/s2closest_point_query.cci(:nF18ue:
 nIn file included from cc,../src/s2/s2closest_point_query.ho :Cn26sa:
tleIn file included from xl../src/s2/s1angle.hep:re28, :
 cKIn file included from oQ../src/s2/s2point.hun:sa27tl:
,  In file included from cM../src/s2/s2coder.hhQ:au23ar:
l*,In file included from   /usr/local/clang/include/absl/status/status.hKaV:ab67sl:
luIn file included from e_,/usr/local/clang/include/absl/status/internal/status_internal.hn :Mu29lV:
alIn file included from lau/usr/local/clang/include/absl/strings/cord.heb:,l94e :
. In file included from .n/usr/local/clang/include/absl/strings/internal/cordz_info.h.a):m 31 e:
 #/usr/local/clang/include/absl/synchronization/mutex.h #: I\845
m:p      45l| :        ^(  
warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      845  |              b o o l  \(
a      b| s                               ^l
::/usr/local/clang/include/absl/base/nullability.ht:y257p:e23_:i dnote: eexpanded from macro 'absl_nullable'n
ti  t257y | <#Td>e:f:itnyep ea:b:s*l _anbuslll_anbolnen u_lNlu lmleatbhloed
)      (| )                      ^)
;
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2coords.cc22::18 :
In file included from note: ../src/s2/s2coords.hexpanded from macro 'absl_nonnull':
105:
In file included from   ../src/s2/base/logging.h241: | 21#/usr/local/clang/include/absl/container/internal/btree_container.h:
d:In file included from e526/usr/local/clang/include/absl/log/check.hf::i337n::
e In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hwarning: a:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b21s
:
l/usr/local/clang/include/absl/log/internal/check_op.h_  n:526o504 | n:n u1 l:Al B warning: S_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]LN
_oInN/usr/local/clang/include/absl/log/internal/check_op.hnT:uE498lR:Nl35A
L:      _ | Xnote:                      ^(expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
n
ser  t498_ | o r _ a s s iignnt,  vi1n,s eirntt_ ovIn file included from r2s2/s2closest_point_query.cc,_: a18cs:
soiIn file included from gn../src/s2/s2closest_point_query.hsn:_t26 i:
mcIn file included from hp../src/s2/s1angle.hla:r,28 *:
c In file included from oan../src/s2/s2point.hbs:st27l :
_&In file included from ,n ../src/s2/s2coder.hoc:on23nn:
usIn file included from lt/usr/local/clang/include/absl/status/status.hl  :&e,67x
:
p      In file included from r| /usr/local/clang/include/absl/status/internal/status_internal.ht  ^:e
29x:
t/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from ):/usr/local/clang/include/absl/strings/cord.h 509:{:94 52:
 : In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h :note:  31expanded from macro 'ABSL_INTERNAL_X' :

 /usr/local/clang/include/absl/synchronization/mutex.h : 850   :509 16  | :       warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] \
 
          |  850                                  ^  | A
 B /usr/local/clang/include/absl/base/nullability.hS :L 241_ I: N22cTo:En sRnote: tNexpanded from macro 'absl_nonnull' A
TL*  _ AaT241bT | sR#ldI_eBnUfoiTnnEn_uCelA laP TboUsRblEjD_e_ncBotYn,n(
ut      lh| il               ^ s
)_)N,/usr/local/clang/include/absl/base/nullability.ho :n 241n : u22l :l   
note:        expanded from macro 'absl_nonnull' |  
                     ^ 
   241  |  # d e f i n e   a b s\l
_      n| o                                                   ^n
nu/usr/local/clang/include/absl/container/internal/common.hl:l31 :_9N:o nnote: nmacro 'ABSL_INTERNAL_IF_true' defined hereu
ll
         31|  |                      ^#
define ABSL_INTERIn file included from Ns2/s2closest_point_query.ccA:L18_:
IIn file included from F../src/s2/s2closest_point_query.h_:t26r:
uIn file included from e../src/s2/s1angle.h(:i28f:
_In file included from s../src/s2/s2point.ha:t27i:
sIn file included from f../src/s2/s2coder.hi:e23d:
,In file included from  /usr/local/clang/include/absl/status/status.h.:.67.:
)In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hi:f29_:
sIn file included from a/usr/local/clang/include/absl/strings/cord.ht:i94s:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.he:d31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h        ^:
851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |    In file included from  s2/s2contains_vertex_query.cc : 18b:
oIn file included from o../src/s2/s2contains_vertex_query.hl: 21(:
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l67::
:/usr/local/clang/include/absl/container/internal/btree_container.ht:y526p:e3_:i dwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
tity<  T526> | : : tAyBpSeL:_:I*N TaEbRsNlA_Ln_oXn(niunlsle rmte_tohro_da)s(s)i
g      n| ,                                            ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e241r:t22_:o rnote: _expanded from macro 'absl_nonnull'a
ss  i241g | n#_diemfpiln,e  caobnsslt_ n&o,n ncuolnls t_ N&o,n
n      u| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l

      |                        ^527
 |                   true, false);
      |                   ~~~~~~~~~~~~In file included from 
s2/s2closest_point_query.cc:18:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2closest_point_query.h509::2647:
:In file included from  ../src/s2/s1angle.h:note: expanded from macro 'ABSL_INTERNAL_X'28
:
In file included from ../src/s2/s2point.h:27  :
509In file included from  | ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hI:N94T:
EIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hN:A31L:
_/usr/local/clang/include/absl/synchronization/mutex.hA:T855T:R34I:B Uwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_CA  P855T | U R EeDx_pBlYi(ctihti sC)o)n,d i t i o n ( c o n s t   b o o l *   a b s l _ n\o
n      n| u                                              ^~~~l
l cond)/usr/local/clang/include/absl/container/internal/btree_container.h;:
526      :| 3                                 ^:
 warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
241:/usr/local/clang/include/absl/container/internal/btree_container.h22::511 :52note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'ABSL_INTERNAL_X'  
241 | #d  e511f | i n e   a b s l _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lA
T      T| R                     ^I
BUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2closest_point_query.cc::3218::
9In file included from :../src/s2/s2closest_point_query.h :26note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
../src/s2/s1angle.h:28:
   In file included from 32../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from A/usr/local/clang/include/absl/status/status.hB:S67L:
_In file included from I/usr/local/clang/include/absl/status/internal/status_internal.hN:T29E:
RIn file included from N/usr/local/clang/include/absl/strings/cord.hA:L94_:
IIn file included from F/usr/local/clang/include/absl/strings/internal/cordz_info.h_:f31a:
l/usr/local/clang/include/absl/synchronization/mutex.hs:e886(:i31f:_ swarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
isf  i886e | d ,  e.x.p.l)i c_i_tV AC_oAnRdGiSt_i_o
n      (| c        ^o
nst T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |           In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26t:
rIn file included from u../src/s2/s1angle.he:,28 :
tIn file included from r../src/s2/s2point.hu:e27):
;In file included from 
../src/s2/s2coder.h      :| 23                            ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/container/internal/btree_container.h67::
496In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h9::29 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hmacro 'ABSL_INTERNAL_X' defined here:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :49631 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e896f:i31n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_  I896N | T E ReNxApLl_iXc(iFtu nCco,n dCiatliloene(,c oKnQsuta lT,*  MaQbusall_,n oKnVnaullule ,o bMjV)a
l      u| e                              ^,
 ./usr/local/clang/include/absl/base/nullability.h.:.241): 22 :   note:  expanded from macro 'absl_nonnull'\

      |           ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/btree_container.h::922528::483::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    922528 |  |     sAtBaStLi_cI NbToEoRlN AGLu_aXr(ainntseeerdtE_qoura_la(scsoingsnt,  Cionnsdeirtti_oonr*_ aasbssilg_nn_uilmlpalb,l ec oan,s
t       | &                                               ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n257s:t23 :& ,note: 
expanded from macro 'absl_nullable'      
|   ^
  257 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d509e:f52i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _509n | u l l a b l e   _ N uAlBlSaLb_lIeN
T      E| R                      ^N
AL_ATTRIBUTE_In file included from Cs2/s2closest_point_query.ccA:P18T:
UIn file included from R../src/s2/s2closest_point_query.hE:D26_:
BIn file included from Y../src/s2/s1angle.h(:t28h:
iIn file included from s../src/s2/s2point.h):)27,:
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31\:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 923                                                   ^:
48: /usr/local/clang/include/absl/container/internal/common.h:warning: 31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
9: note:   macro 'ABSL_INTERNAL_IF_true' defined here923
 |       31  |  # d e f i n e   A B S L _ I N T E R N A L _ I F _ tcrounes(ti fC_osnadtiitsifoine*d ,a b.s.l._)n uilfl_asbaltei sbf)i;e
d      
|                                                      ^| 
        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2contains_vertex_query.ccf:i18n:
eIn file included from  ../src/s2/s2contains_vertex_query.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.ha:b528l:e3 :_ Nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
labIn file included from l  s2/s2coords.cce528:
 | 18       :
 | In file included from A                      ^../src/s2/s2coords.hB
S:L105_:
IIn file included from N../src/s2/base/logging.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37X:
(In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:s21e:
rt/usr/local/clang/include/absl/log/internal/check_op.h_:o505r:_1a:s swarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]g
n,   i505n | sAeBrStIn file included from L_s2/s2closest_point_query.cco_:Lr18O_:
GaIn file included from _s../src/s2/s2closest_point_query.hsI:Ni26gTn:
E_In file included from RiN../src/s2/s1angle.hmA:pL28l_,:
 CIn file included from Hc../src/s2/s2point.hoE:Cn27sK:
_tIn file included from  O../src/s2/s2coder.h&P:_,23 I:
cMIn file included from oP/usr/local/clang/include/absl/status/status.hnL:(s67tC:
 hIn file included from e&/usr/local/clang/include/absl/status/internal/status_internal.hc,:k
29_      :
L| In file included from T  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,/usr/local/clang/include/absl/strings/cord.h 
:<94)  :

529In file included from        | /usr/local/clang/include/absl/strings/internal/cordz_info.h |  : ^31 
:
 /usr/local/clang/include/absl/synchronization/mutex.h /usr/local/clang/include/absl/log/internal/check_op.h: :948 488: :10 32 : :   warning:  note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
 
  t    r948488u |  | e  ,   bitonrolulie )n(e;* ac
bo      sn| ls                  ~~~~~~~~~~~_t
neuxlplr/usr/local/clang/include/absl/container/internal/btree_container.ha :cb509ol:ne47s t: e cvnote: haexpanded from macro 'ABSL_INTERNAL_X'al
r_*) (  ac509bos | n ls_ tn  u C ol nl da ib tl ieAo BnnS*aL _maeIbN#s#TlIE_mRnpNoln(AnL u _l A TlT )R  I = B  UnT u El_ l Cp At Pr T;U 
 R      E | D\         ^
_
B      Y| /usr/local/clang/include/absl/base/nullability.h                               ^(:t
h257i:/usr/local/clang/include/absl/base/nullability.hs23:):)257,  :note:  23expanded from macro 'absl_nullable' : 
     note:  257 expanded from macro 'absl_nullable' |  
# d   e f257i  | n #e  d ae fb is nl e_  n au bl sll\a_
bn      ull| el                                              ^~~~ a
_bNluel l_a/usr/local/clang/include/absl/container/internal/btree_container.hNb:ull528el:
a3      b:| l                       ^e

warning:       passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                      ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2closest_point_query.cc511::1852:
:In file included from  ../src/s2/s2closest_point_query.h:note: 26expanded from macro 'ABSL_INTERNAL_X':

In file included from In file included from ../src/s2/s1angle.hs2/s2coords.cc  ::5112818 | :
:
 In file included from  In file included from  ../src/s2/s2point.h../src/s2/s2coords.h :: 27105 :
:
 In file included from  In file included from  ../src/s2/s2coder.h../src/s2/base/logging.h ::A2321B:
:
SIn file included from In file included from L/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.h_:I:N67T37E:
:
RIn file included from NIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.hL::_29A21:
T:
TIn file included from /usr/local/clang/include/absl/log/internal/check_op.hR/usr/local/clang/include/absl/strings/cord.h:I:B505U94:T:
1EIn file included from _:C/usr/local/clang/include/absl/strings/internal/cordz_info.h A:warning: P31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T:
U
/usr/local/clang/include/absl/synchronization/mutex.hR:/usr/local/clang/include/absl/log/internal/check_op.hE948:D:489_48:B:47Y :( warning: tnote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i

s))    )948489  |  |        b o  o  l   c ( o*n a b s slt _  n Tu1 l & l  av b1 l ,e   ceo\vn
as      lt| _                                                   ^ )T
2(&c/usr/local/clang/include/absl/container/internal/common.h o:vn312s,:t 9c :Co nonote: snmacro 'ABSL_INTERNAL_IF_true' defined heretd 
icth   air31o*n  | *#a dbasebfls_ilnn_oen nonAunlBnSlLu_ leIlNxT)Ep rR=Nt eAnxLut_lI)l Fp_{tt rr ; u 
e       (\i| f
                                               ^_      s
a| t                                              ^i/usr/local/clang/include/absl/base/nullability.h
s:f241/usr/local/clang/include/absl/base/nullability.hi:e:22d241,::  .22note: .:expanded from macro 'absl_nonnull'. )
note:  expanded from macro 'absl_nonnull'  i
f241_   | s241#a | td#iesdffeiifendi
en       e| a         ^abb
ssll__nnoonnnnuullllIn file included from   s2/s2contains_vertex_query.cc__:NNo18non:
nuIn file included from nl../src/s2/s2contains_vertex_query.hul:l
21l      :

| In file included from                      ^      /usr/local/clang/include/absl/container/btree_map.h
| :                     ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |  In file included from  s2/s2closest_point_query.ccA:B18S:
LIn file included from _../src/s2/s2closest_point_query.hI:N26T:
EIn file included from R../src/s2/s1angle.hN:A28L:
_In file included from X../src/s2/s2point.h(:i27n:
sIn file included from e../src/s2/s2coder.hr:t23_:
oIn file included from r/usr/local/clang/include/absl/status/status.h_:a67s:
sIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hg:n29,:
 In file included from i/usr/local/clang/include/absl/strings/cord.hn:s94e:
rIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h_:o31r:
_/usr/local/clang/include/absl/synchronization/mutex.ha:s951s:i9g:n _warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]m
pl,   951c | o n svto i&d,*  caobnsslt_ n&u,l
l      a| In file included from b  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s2/s2coords.ccl
:e18   :
529aIn file included from  | r../src/s2/s2coords.h g :_ 105  :
= In file included from   ../src/s2/base/logging.hn :u 21l :
l In file included from p /usr/local/clang/include/absl/log/check.ht :r 37; :

 In file included from         /usr/local/clang/include/absl/log/internal/check_impl.h|  :        ^t21
r:
u/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.he:,:257 505:t:23r1:u: e note: )warning: expanded from macro 'absl_nullable';type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]


        | 257/usr/local/clang/include/absl/log/internal/check_op.h                  ~~~~~~~~~~~ | :
#497d:e32/usr/local/clang/include/absl/container/internal/btree_container.hf::i 511n:enote: 47 expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':a
 bnote: sexpanded from macro 'ABSL_INTERNAL_X'l  
_497n | u   l 511li | an bl li en  e _  Nc uo ln ls atAbeBlxSepL
r_       I| cN                      ^oT
nEsRtN AcLh_aArTIn file included from *Ts2/s2closest_point_query.ccR :aI18Bb:
sUIn file included from lT../src/s2/s2closest_point_query.h_E:_n26Cu:
AlIn file included from Pl../src/s2/s1angle.hTa:bU28Rl:
eEIn file included from  D../src/s2/s2point.h_n:Ba27Ym:
(eIn file included from t#../src/s2/s2coder.hh#:iIs23)m:
p)In file included from l)/usr/local/clang/include/absl/status/status.h( :  67  :
  In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h  :  29  :
  In file included from    /usr/local/clang/include/absl/strings/cord.h  :  94  :
  In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h  :  31  :
  /usr/local/clang/include/absl/synchronization/mutex.h  : \954
 :       \52
| :                                     ^ | 
warning:                                               ^~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h
:257:23:   954 | note:  expanded from macro 'absl_nullable' 
st  a257t | i#cd ebfoionle  CaablsllV_oniudlPltarbFluen c_tNiuolnl(acbolnes
t       | C                      ^o
ndition* In file included from as2/s2coords.ccb:s18l:
_In file included from n../src/s2/s2coords.ho:n105n:
uIn file included from l../src/s2/base/logging.hl: 21c:
)In file included from ;/usr/local/clang/include/absl/log/check.h
:      37| :
                                                   ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/check_op.h241::50522::1 : note: warning: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
532  :/usr/local/clang/include/absl/log/internal/check_op.h24124: | :498# :dwarning: 35epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f:
i nnote:   eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'532 
 | a b s   l 498 _ |  n  o  n n  u  l    li  n_ tN  o vn1 nf,a lusilnet)l ;

v      2      ,|  | c                     ^o                       ^n
s
t /usr/local/clang/include/absl/container/internal/btree_container.hc:h496a:r9*:  anote: bmacro 'ABSL_INTERNAL_X' defined heres
l_nIn file included from   os2/s2closest_point_query.ccn496:n | u18#ld:
elIn file included from f ../src/s2/s2closest_point_query.hei:xnpe26 rA:
tBeSIn file included from xLt_)../src/s2/s1angle.hI N:{T 28 E:
R NIn file included from  A L ../src/s2/s2point.h_ X: ( 27 F:
u n In file included from c ../src/s2/s2coder.h,  : C 23 a\:
l
lIn file included from       e/usr/local/clang/include/absl/status/status.h| e:                                  ^,67
 :
KIn file included from /usr/local/clang/include/absl/base/nullability.hQ/usr/local/clang/include/absl/status/internal/status_internal.h:u:241a29l::
,22In file included from  :/usr/local/clang/include/absl/strings/cord.hM :Q94note: u:
expanded from macro 'absl_nonnull'aIn file included from 
l/usr/local/clang/include/absl/strings/internal/cordz_info.h,:   31241K:
 | V/usr/local/clang/include/absl/synchronization/mutex.h#ad:le956uf:ei52,n: e M warning: Vatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ab
lsule_  ,n956 o | .n .n .us)lt la  t _i Nc o \nb
no      uo| ll        ^l 

C      a| s                     ^t
AndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/synchronization/mutex.h::531958::350::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    958531 |  |     sAtBaStLi_cI NbToEoRlN ACLa_sXt(AinndsCearltl_Moert_haosds(icgonn,s ti nCsoenrdti_toiro_na*s saibgsnl__inmopnln,u lclo ncs)t; 
&      ,|                                                   ^&
&,/usr/local/clang/include/absl/base/nullability.h :f241a:l22s:e ,note: 
expanded from macro 'absl_nonnull'      
|   ^  
241 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e509f:i52n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n509o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTIn file included from Us2/s2closest_point_query.ccR:E18D:
_In file included from B../src/s2/s2closest_point_query.hY:(26t:
hIn file included from i../src/s2/s1angle.hs:)28):
,In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
\In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                                                   ^:

/usr/local/clang/include/absl/synchronization/mutex.h:961/usr/local/clang/include/absl/container/internal/common.h::3432:: 9:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
macro 'ABSL_INTERNAL_IF_false' defined here
  961    | 32  |  #sdteaftiince  bAoBoSlL _CIaNlTlEBRyNRAeLf_(IcFo_nfsatl sTe*( iafb_ssla_tniosnfniueldl,  s.e.l.f))  _{_
V      A| _                                 ^A
RG/usr/local/clang/include/absl/base/nullability.hS:_241_:
22      :|          ^
note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2contains_vertex_query.ccn:e18 :
aIn file included from b../src/s2/s2contains_vertex_query.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl: 531_:N3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l
      |                        ^531
 |   ABSL_INTERNAL_X(insert_or_assign,In file included from  s2/s2closest_point_query.cci:n18s:
eIn file included from r../src/s2/s2closest_point_query.ht:_26o:
rIn file included from _../src/s2/s1angle.ha:s28s:
iIn file included from g../src/s2/s2point.hn:_27i:
mIn file included from p../src/s2/s2coder.hl:,23 :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from &/usr/local/clang/include/absl/status/internal/status_internal.h,: 29&:
&In file included from ,/usr/local/clang/include/absl/strings/cord.h :f94a:
lIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.he:,31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h  ^:
975:31/usr/local/clang/include/absl/container/internal/btree_container.h:: 511:warning: 52:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  975 |    511  | i n l i n e   v o i dA BRSeLa_dICNaTlElRbNaAcLk_(ATT*T RaIbBsUlT_En_oCnAnPuTlUlR EcDa_lBlYb(atchki)s )c)o)n s t   { 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | \#
d      e| f                                                   ^i
ne/usr/local/clang/include/absl/container/internal/common.h :a32b:s9l:_ nnote: omacro 'ABSL_INTERNAL_IF_false' defined heren
nul   l32  | _#Ndoenfniunlel 
A      B| S                     ^L
_INTERNAL_IF_false(iIn file included from fs2/s2closest_point_query.cc_:s18a:
tIn file included from i../src/s2/s2closest_point_query.hs:f26i:
eIn file included from d../src/s2/s1angle.h,: 28.:
.In file included from .../src/s2/s2point.h): 27_:
_In file included from V../src/s2/s2coder.hA:_23A:
RIn file included from G/usr/local/clang/include/absl/status/status.hS:_67_:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :        ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrIn file included from us2/s2contains_vertex_query.cce:(18c:
oIn file included from n../src/s2/s2contains_vertex_query.hs:t21 :
CIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:d67i:
t/usr/local/clang/include/absl/container/internal/btree_container.hi:o534n:*23 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_n  u534l | l a b l e )   {   r e t u r n   t r uter;u e})
;      
|                                                 ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/btree_container.h257::49623::9 : note: note: expanded from macro 'absl_nullable'macro 'ABSL_INTERNAL_X' defined here

  257 |   #496d | e#fdienfei naeb sAlB_SnLu_llIaNbTlEeR N_ANLu_lXl(aFbulnec
,       | C                      ^a
llee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_aIn file included from ss2/s2closest_point_query.ccs:i18g:
nIn file included from ,../src/s2/s2closest_point_query.h :i26n:
sIn file included from e../src/s2/s1angle.hr:t28_:
oIn file included from r../src/s2/s2point.h_:a27s:
sIn file included from i../src/s2/s2coder.hg:n23_:
iIn file included from m/usr/local/clang/include/absl/status/status.hp:l67,:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/strings/cord.h&:,94 :
&In file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31f:
a/usr/local/clang/include/absl/synchronization/mutex.hl:s1033e:,20
:       | warning:   ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:509 :103352 | :  note:  expanded from macro 'ABSL_INTERNAL_X'v
oid   509W | a i t ( M u t e x *  AaBbSsLl__InNoTnEnRuNlAlL _mAuT)T R{I
B      U| T                   ^E
_CA/usr/local/clang/include/absl/base/nullability.hP:T241U:R22E:D _note: Bexpanded from macro 'absl_nonnull'Y
(t  h241i | s#)d)e,f i n e   a b s l _ n o n n u l l   _ N o n n u l\l

            | |                                                    ^                     ^

/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSLIn file included from _s2/s2closest_point_query.ccI:N18T:
EIn file included from R../src/s2/s2closest_point_query.hN:A26L:
_In file included from In file included from I../src/s2/s1angle.hs2/s2coords.ccF::_2818f:
:
aIn file included from In file included from l../src/s2/s2point.h../src/s2/s2coords.hs::e27105(:
:
iIn file included from In file included from f../src/s2/s2coder.h../src/s2/base/logging.h_::s23a21t:
i:
sIn file included from In file included from f/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.hi::e67d37:
,:
In file included from  In file included from ./usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.h.::.2921):
:
 In file included from /usr/local/clang/include/absl/log/internal/check_op.h_/usr/local/clang/include/absl/strings/cord.h:_:506V94:A:
1_In file included from A:/usr/local/clang/include/absl/strings/internal/cordz_info.hR G:warning: S31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_:

_/usr/local/clang/include/absl/synchronization/mutex.h
:      1050  | :506        ^31 | 
:A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_LOG In file included from _1050s2/s2contains_vertex_query.ccI | :N 18T :
EbIn file included from RoN../src/s2/s2contains_vertex_query.hoA:lL21 _:
WCIn file included from aH/usr/local/clang/include/absl/container/btree_map.hiE:tC67WK:
i_/usr/local/clang/include/absl/container/internal/btree_container.htO:hP533T_:iI3mM:eP oLwarning: u(passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]tC
(hMeuc  tk533e_ | xG *E , A aB>bS=sLl)__
In      NoT| nE^RnN
uAlL/usr/local/clang/include/absl/log/internal/check_op.hl_: X488m(:iu32n,:s e arnote: btexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's_
lo:r:_D  ua488rs | as ti igionnn,l  itininems eecoroutnt_s)to re{_x
pa      rs|  s                              ^ci
ognn/usr/local/clang/include/absl/base/nullability.h_s:it241m :pc22lh:,a r note: *cexpanded from macro 'absl_nonnull'o 
nasb  ts241l  | _&#,nd uel&l&f,ai bnfleae l asnbeasm,le
_#      n#| oIn  ^mnp
ull/usr/local/clang/include/absl/container/internal/btree_container.hl(:  511_ :N 52o :n  n note: u l expanded from macro 'ABSL_INTERNAL_X' l 

        |                        ^ 511 
  |         \ 
        |                                 ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S257L:_23I:N Tnote: Eexpanded from macro 'absl_nullable'R
NIn file included from A  s2/s2closest_point_query.ccL257:_ | 18A#:
TdIn file included from TeR../src/s2/s2closest_point_query.hfIi:Bn26eU:
T In file included from Ea../src/s2/s1angle.h_b:Cs28Al:
P_In file included from Tn../src/s2/s2point.hUu:lRl27aE:
DbIn file included from _l../src/s2/s2coder.hBe:Y 23(_:
NtIn file included from uh/usr/local/clang/include/absl/status/status.hlil:as67b):
l)In file included from e)/usr/local/clang/include/absl/status/internal/status_internal.h
 :       29 |  :
                       ^ In file included from 
 /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h In file included from : s2/s2coords.cc1069 :: 18 32 :
: In file included from   ../src/s2/s2coords.hwarning: \:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
105
      :
| In file included from                                                    ^../src/s2/base/logging.h
 :1069/usr/local/clang/include/absl/container/internal/common.h21 | ::
 31In file included from  :/usr/local/clang/include/absl/log/check.hb9:o:37o :
lIn file included from note:  /usr/local/clang/include/absl/log/internal/check_impl.hmacro 'ABSL_INTERNAL_IF_true' defined hereW:a
i21t:
   W/usr/local/clang/include/absl/log/internal/check_op.h31i: | t506#h:dD1ee:fa idwarning: nltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ei
 nA/usr/local/clang/include/absl/log/internal/check_op.hBeS:(L489M_:uI47tN:Te Exnote: R*expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N A
aLb_s  IlF489__nt | or nu ne u( l il f _cmsouan,ts itas bfTsi1le&:d :,vT 1i.,m .e.c )od neisaftd _lTsi2ant&e i)sv f2{i,
e       dc| 
o                               ^n      s
t|  /usr/local/clang/include/absl/base/nullability.hc        ^h:a
241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | In file included from n#us2/s2contains_vertex_query.ccdl:el18f :
ieIn file included from nx../src/s2/s2contains_vertex_query.hep: r21at:
beIn file included from sx/usr/local/clang/include/absl/container/btree_map.hlt:_)67n :
o{/usr/local/clang/include/absl/container/internal/btree_container.hn :n 533u : l3 l:\  
_      warning: N| 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o                                              ^n

nu/usr/local/clang/include/absl/base/nullability.hl:l241  
:533      22 | | :                      ^  
note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ Xa(bisnls_enrotn_noIn file included from urs2/s2closest_point_query.cc_l:als18 s:
_iIn file included from Ngo../src/s2/s2closest_point_query.hnn:,n26 ui:
lnIn file included from ls../src/s2/s1angle.h
e:      r28| t:
                     ^_In file included from 
o../src/s2/s2point.hr:_27a:
sIn file included from s../src/s2/s2coder.hi:g23n:
_In file included from i/usr/local/clang/include/absl/status/status.hm:p67l:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h :&94,:
 In file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h&:,31 :
f/usr/local/clang/include/absl/synchronization/mutex.ha:l1088s:e35,:
       | warning:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  534 |   1088  |      v o i d   E n a b l e D e bturguLeo)g;(
c      o| n                  ~~~~~s
t c/usr/local/clang/include/absl/container/internal/btree_container.hh:a511r:*47 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_nu  l511l | a b l e   nIn file included from  a s2/s2coords.ccm : e18 )A;:
B
SIn file included from L      _../src/s2/s2coords.h| I:                                  ^N105T
E:
R/usr/local/clang/include/absl/base/nullability.hIn file included from N:../src/s2/base/logging.hA257L:_:A2123T:
T:In file included from R /usr/local/clang/include/absl/log/check.hI:Bnote: 37Uexpanded from macro 'absl_nullable'T:
E
In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hC  :A25721P | T:
#U/usr/local/clang/include/absl/log/internal/check_op.hRd:Ee506fD:i_nBeY1( :tahbi sswarning: )ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])_
)n u /usr/local/clang/include/absl/log/internal/check_op.hl :l 497 a :b 32 l: e   _ note:  Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' u 
l l a    b 497l  | e   
  i       n\l| i
                      ^n      e
 | c                                              ^~~~o
nstexpr const chIn file included from as2/s2closest_point_query.ccr:*18 :
aIn file included from b../src/s2/s2closest_point_query.hs:l26_:
nIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he: 27n:
aIn file included from m../src/s2/s2coder.he:#23#:
IIn file included from m/usr/local/clang/include/absl/status/status.hp:l67(:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1091 :\26
:       | warning:                                ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h: 2571091: | 23 :  bnote: oexpanded from macro 'absl_nullable'o
l   W257a | i#tdCeofmimnoen (aMb/usr/local/clang/include/absl/container/internal/btree_container.hus:tl536_e:nx24u*:l l aawarning: bbpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]lse
l __  nN536ou | nl nl ua l bl l e 
m       u | t                       ^e 
x , 
        |                           ^ 
 In file included from  /usr/local/clang/include/absl/base/nullability.hs2/s2coords.ccf::a24118l::
s22In file included from e:../src/s2/s2coords.h) :;105note: 
:
expanded from macro 'absl_nonnull'      In file included from 
| ../src/s2/base/logging.h                       ^:  
21241:
 | /usr/local/clang/include/absl/container/internal/btree_container.hIn file included from #:/usr/local/clang/include/absl/log/check.hd496:e:37f9:
i:In file included from n /usr/local/clang/include/absl/log/internal/check_impl.he:note:  21macro 'ABSL_INTERNAL_X' defined herea:

b/usr/local/clang/include/absl/log/internal/check_op.hs:l506  _:496n1 | o:#n dnwarning: eutype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]fl
iln /usr/local/clang/include/absl/log/internal/check_op.he_: N498Ao:Bn35Sn:Lu_ lInote: lNexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
T
      E| R                     ^N  
A498L | _ X ( F u n ci,n tC avl1l,e ei,n In file included from tKs2/s2closest_point_query.ccQ :vu18a2:
l,In file included from , ../src/s2/s2closest_point_query.h c:Mo26Qn:
suIn file included from at../src/s2/s1angle.h l:,c28 h:
KaIn file included from Vr../src/s2/s2point.ha*:l 27ua:
beIn file included from s,../src/s2/s2coder.hl :_M23Vn:
aoIn file included from ln/usr/local/clang/include/absl/status/status.hun:eu67l,:
l In file included from . /usr/local/clang/include/absl/status/internal/status_internal.h.e:.x29)p:
 rIn file included from  t/usr/local/clang/include/absl/strings/cord.h e: x94t :
\)In file included from 
 /usr/local/clang/include/absl/strings/internal/cordz_info.h      {: |  31        ^ :

 /usr/local/clang/include/absl/synchronization/mutex.h : 1093 : 46 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1093\ | 
        | v                                  ^o
id/usr/local/clang/include/absl/base/nullability.h :R241e:m22o:v enote: (expanded from macro 'absl_nonnull'b
as  e241_ | i#ndteefrinnael :a:bPselr_TnhornenaudlSly n_cNho*n naublsll
_      n| o                     ^n
null s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define a/usr/local/clang/include/absl/container/internal/btree_container.hb:s535l:_3n:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll _  N535o | n n uAlBlS
L      _| I                     ^N
TERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...In file included from )s2/s2closest_point_query.cc :i18f:
_In file included from s../src/s2/s2closest_point_query.ha:t26i:
sIn file included from f../src/s2/s1angle.hi:e28d:

In file included from       ../src/s2/s2point.h| :        ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94In file included from :
s2/s2contains_vertex_query.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h18::
31In file included from :
../src/s2/s2contains_vertex_query.h:/usr/local/clang/include/absl/synchronization/mutex.h21::
1109In file included from :/usr/local/clang/include/absl/container/btree_map.h34::67 :
warning: /usr/local/clang/include/absl/container/internal/btree_container.h:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]535
:3:  warning: 1109'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
  exp  l535i | c i tA BMSuLt_eIxNLToEcRkNMAaLy_bXe((iMnusteerxt*_ oarb_sals_sniuglnl,a bilnes emrut)_
o      r| _                                 ^a
ssi/usr/local/clang/include/absl/base/nullability.hg:n257_:i23m:p lnote: ,expanded from macro 'absl_nullable' 
co  n257s | t# d&e,f i&n&e,  atbrsule_,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bl  e536  | _ N u l l a b l e 
        |                        ^ 
     false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 | In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from A../src/s2/s1angle.hB:S28L:
_In file included from I../src/s2/s2point.hN:T27E:
RIn file included from N../src/s2/s2coder.hA:L23_:
AIn file included from T/usr/local/clang/include/absl/status/status.hT:R67I:
BIn file included from U/usr/local/clang/include/absl/status/internal/status_internal.hT:E29_:
CIn file included from A/usr/local/clang/include/absl/strings/cord.hP:T94U:
RIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hD:_31B:
Y/usr/local/clang/include/absl/synchronization/mutex.h(:t1117h:i34s:) )warning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1117  |      e x p l i c i t   M u t e x L\o
c      k| M                                              ^~~~a
ybe(Mute/usr/local/clang/include/absl/container/internal/btree_container.hx:*535 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl:a511b:l52e:  mnote: uexpanded from macro 'ABSL_INTERNAL_X',
 co  n511s | t   C o n d i t i o nA&B ScLo_nIdN)T
E      R| N                                 ^A
L_/usr/local/clang/include/absl/base/nullability.hA:T257T:R23I:B Unote: Texpanded from macro 'absl_nullable'E
_C  A257P | T#UdReEfDi_nBeY (atbhsils_)n)u)l l a b l e   _ N u l l a b l e 
        |                        ^ 
    \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_faIn file included from ls2/s2closest_point_query.ccs:e18(:
iIn file included from f../src/s2/s2closest_point_query.h_:s26a:
tIn file included from i../src/s2/s1angle.hs:f28i:
eIn file included from d../src/s2/s2point.h,: 27.:
.In file included from .../src/s2/s2coder.h): 23_:
_In file included from V/usr/local/clang/include/absl/status/status.hA:_67A:
RIn file included from G/usr/local/clang/include/absl/status/internal/status_internal.hS:_29_:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :        ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EX/usr/local/clang/include/absl/container/internal/btree_container.hC:L537U:S3I:V Ewarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L
OCK_  F537U | N C TAIBOSNL(_mIuN)T
E      R| N      ^~~~A
L_X(insert_or_assign, insert_or_ass/usr/local/clang/include/absl/synchronization/mutex.hi:g1153n:_39i:m pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 co n1153s | t   &e,x p&l&i,c ittr uRee,l
e      a| s  ^a
bl/usr/local/clang/include/absl/container/internal/btree_container.he:M509u:t52e:x Lnote: oexpanded from macro 'ABSL_INTERNAL_X'c
k(M  u509t | e x *   a b s l _ n oAnBnSuLl_lI NmTuE)R
N      A| L                                      ^_
AT/usr/local/clang/include/absl/base/nullability.hT:R241I:B22U:T Enote: _expanded from macro 'absl_nonnull'C
AP  T241U | R#EdDe_fBiYn(et haibss)l)_,n o n n u l l   _ N o n n u l l 
        |                       ^ 
    \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: In file included from note: s2/s2coords.ccmacro 'ABSL_INTERNAL_IF_true' defined here:
18:
In file included from ../src/s2/s2coords.h   :31105 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :In file included from A37s2/s2closest_point_query.ccB:
:SIn file included from 18L/usr/local/clang/include/absl/log/internal/check_impl.h_:
:IIn file included from 21N../src/s2/s2closest_point_query.h:
T:/usr/local/clang/include/absl/log/internal/check_op.hE26R:N:
507AIn file included from :L../src/s2/s1angle.h1_:I:28F :
_In file included from warning: t../src/s2/s2point.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r:u
27e:
(In file included from i  ../src/s2/s2coder.hf507:_ | 23sA:
BaIn file included from tS/usr/local/clang/include/absl/status/status.hLi:_sL67fO:
iGIn file included from e_/usr/local/clang/include/absl/status/internal/status_internal.hdI:N,29T :
.EIn file included from .R/usr/local/clang/include/absl/strings/cord.h.N:)A94L _:
iCIn file included from fH_/usr/local/clang/include/absl/strings/internal/cordz_info.hEsC:aK31t_:
Oi/usr/local/clang/include/absl/synchronization/mutex.hPs:f_1158iI:Me53Pd:L
 (      warning: C| 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h        ^e
c
k_G T1158, |   > ) 
        |  ^M
ut/usr/local/clang/include/absl/log/internal/check_op.he:In file included from x488s2/s2contains_vertex_query.cc&:: 3218m::
u In file included from  note: ../src/s2/s2contains_vertex_query.hAexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':B
21S:
LIn file included from   _/usr/local/clang/include/absl/container/btree_map.h488I: | N67 T:
 E/usr/local/clang/include/absl/container/internal/btree_container.hiR:nN537lA:iL3n_:eA  Twarning: cT'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]oR
nIsBtUeTx  pE537r_  | Cc Ao PAnTBsSULtR_ EIcDNh_TaBErYR*( NtAahLbi_ssXl()_i,nn
usl      elra| bt                                                    ^~~~l_
oer _naasmsei#g#nI,m piln(s e r t _ o r _ a s s i g n _ i m p/usr/local/clang/include/absl/synchronization/mutex.h l :,\ 1166
c:o      39n| :s                               ^ t
warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&/usr/local/clang/include/absl/base/nullability.h,
: 257&:&23 ,:1166   | tnote: r expanded from macro 'absl_nullable'u e
e,x
  p      257l|  | i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#c
idt  e 538fR | ie nl ee  a as ba sb ll _e nM uu ltl e axb Ll oe c  k _(tNMurulutele)ax;b*l
 e      a
| b                        ~~~~~s| 
l                      ^_
n/usr/local/clang/include/absl/container/internal/btree_container.ho:n509n:u47l:l  note: mexpanded from macro 'ABSL_INTERNAL_X'u
In file included from ,s2/s2coords.cc :  c18509o:
 | n In file included from s ../src/s2/s2coords.ht :  105C :
o In file included from n ../src/s2/base/logging.hd :i 21t :
iAIn file included from Bo/usr/local/clang/include/absl/log/check.hSn:L&37_ :
IcIn file included from No/usr/local/clang/include/absl/log/internal/check_impl.hTn:Ed21R)N:

A/usr/local/clang/include/absl/log/internal/check_op.h      L:_| A507                                      ^T:
T1R:/usr/local/clang/include/absl/base/nullability.hI B:warning: U241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T:
E22_:/usr/local/clang/include/absl/log/internal/check_op.hC :A489note: P:expanded from macro 'absl_nonnull'T47
U:R   E241note: D | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_#
BdYe(f  ti489hn | ie s  )a )b ,s  l  _c no on ns nt u  lT l1  & _  N vo 1n ,n  u cl ol n
 s       t|                        ^ T
 2\&
       v| 2                                              ^~~~,
 const c/usr/local/clang/include/absl/container/internal/btree_container.hh:a537r:*3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_/usr/local/clang/include/absl/container/internal/btree_container.hn:o511n:n52u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'e
xpr  t511e | x t )   { In file included from   s2/s2closest_point_query.cc  :  18  :
  In file included from A\../src/s2/s2closest_point_query.hB
:S      26L| :
_                                              ^IIn file included from 
N../src/s2/s1angle.hT:/usr/local/clang/include/absl/base/nullability.hE28:R:
241NIn file included from :A../src/s2/s2point.h22L::_27 A:
note: TIn file included from expanded from macro 'absl_nonnull'T../src/s2/s2coder.h
R:I23  B:
241UIn file included from  | T/usr/local/clang/include/absl/status/status.h#E:d_67eC:
fAIn file included from iP/usr/local/clang/include/absl/status/internal/status_internal.hnTe:U 29Ra:
EbIn file included from Ds/usr/local/clang/include/absl/strings/cord.h_l:B_94Yn:
(oIn file included from tn/usr/local/clang/include/absl/strings/internal/cordz_info.hhn:iu31sl:
)l/usr/local/clang/include/absl/synchronization/mutex.h) :)_1179 N: o10 n: n  uwarning:  ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] l
 
         | 1179                      ^ |  
    M u t e x *   a b s l\_
n      u| l                                                   ^l
ab/usr/local/clang/include/absl/container/internal/common.hl:e31 :m9u:_ ;note: 
macro 'ABSL_INTERNAL_IF_true' defined here      
|          ^
   31 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'A
BS  L257_ | I#NdTeEfRiNnAeL _aIbFs_lt_rnuuel(liafb_lsea t_iNsuflileadb,l e.
.      .| )                      ^ 
if_satiIn file included from ss2/s2coords.ccf:i18e:
dIn file included from 
../src/s2/s2coords.h      :| 105        ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2contains_vertex_query.cc::50718::
1In file included from :../src/s2/s2contains_vertex_query.h :21warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h497::53732::3 : note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  497   | 537  |   i nAlBiSnLe_ IcNoTnEsRtNeAxLp_rX (cionnssetr tc_hoarr_*a sasbisgln_,n uilnlsaebrlte_ onra_maes#s#iIgmnp_li(m p l ,   c o n s t   & ,   & & ,   t r\u
e      ,| 
                               ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/base/nullability.h:  257538: | 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   atbrsule_)n;u
l      l| a                  ~~~~~b
le /usr/local/clang/include/absl/container/internal/btree_container.h_:N511u:l47l:a bnote: lexpanded from macro 'ABSL_INTERNAL_X'e

      |                       ^  
511 |        In file included from  s2/s2coords.cc : 18A:
BIn file included from S../src/s2/s2coords.hL:_105I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:A37T:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:B21U:
T/usr/local/clang/include/absl/log/internal/check_op.hE:_507C:A1P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_/usr/local/clang/include/absl/log/internal/check_op.hB:Y498(:t35h:i snote: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL')
)     498  |              i n t   v 1 ,   i n t   v 2\,
       c| o                                              ^~~~n
st char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |              In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from f../src/s2/s2closest_point_query.ha:l26s:
eIn file included from )../src/s2/s1angle.h;:
28      :
| In file included from                        ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2coder.h496::239:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67macro 'ABSL_INTERNAL_X' defined here:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
496In file included from  | /usr/local/clang/include/absl/strings/cord.h#:d94e:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31 :
A/usr/local/clang/include/absl/synchronization/mutex.hB:S1212L:_52I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_ X1212( | Fbuonocl,  CCoanldlietei,o nK:Q:uCaals,t AMnQduCaall,l MKeVtahloude(,c oMnVsatl uCeo,n d.i.t.i)o n *   a b\s
l      _| n        ^o
nnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540In file included from :s2/s2closest_point_query.cc3::18 :
In file included from warning: ../src/s2/s2closest_point_query.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
26:
In file included from ../src/s2/s1angle.h:28  :
540In file included from  | ../src/s2/s2point.h : 27A:
BIn file included from S../src/s2/s2coder.hL:_23I:
NIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
AIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:X29(:
iIn file included from n/usr/local/clang/include/absl/strings/cord.hs:e94r:
tIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31_:
a/usr/local/clang/include/absl/synchronization/mutex.hs:s1221i:g54n:,  warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
sert _1221o | rb_oaosls iCgonn_diimtpilo,n :&:&C,a sctoAnnsdtC a&l,l Ffuanlcstei,o
n      (| c  ^o
ns/usr/local/clang/include/absl/container/internal/btree_container.ht: 509C:o52n:d inote: texpanded from macro 'ABSL_INTERNAL_X'i
on*   509a | b s l _ n o n n u l lA BcS)L _{I
N      T| E                                                     ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_  C241A | P#TdUeRfEiDn_eB Ya(btshli_sn)o)n,n u l l   _ N o n n u l l 
        |                       ^ 
       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, .In file included from .s2/s2closest_point_query.cc.:)18 :
_In file included from _../src/s2/s2closest_point_query.hV:A26_:
AIn file included from R../src/s2/s1angle.hG:S28_:
_In file included from 
../src/s2/s2point.h      :| 27        ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2contains_vertex_query.ccIn file included from :/usr/local/clang/include/absl/strings/cord.h18::
94In file included from :
../src/s2/s2contains_vertex_query.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h21::
31In file included from :
/usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/synchronization/mutex.h67::
1230/usr/local/clang/include/absl/container/internal/btree_container.h::12540:: 3:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
 1230   | 540  |    AB S Lb_oIoNlT E(R*NaAbLs_lX_(nionnsneurltl_ ofru_nacs)s(iTg*n ,a bisnls_enrutl_loarb_ialsistiyg_nu_nikmnpolw,n )&,&
,       | c           ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241&:,22 :f anote: lexpanded from macro 'absl_nonnull's
e,  
241       | | #  ^d
ef/usr/local/clang/include/absl/container/internal/btree_container.hi:n511e: 52a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n511u | l l   _ N o n n u l lA
B      S| L                     ^_
INTERNIn file included from As2/s2closest_point_query.ccL:_18A:
TIn file included from T../src/s2/s2closest_point_query.hR:I26B:
UIn file included from T../src/s2/s1angle.hE:_28C:
AIn file included from P../src/s2/s2point.hT:U27R:
EIn file included from D../src/s2/s2coder.h_:B23Y:
(In file included from t/usr/local/clang/include/absl/status/status.hh:i67s:
)In file included from )/usr/local/clang/include/absl/status/internal/status_internal.h): 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31    :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1230 : 34 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]\

      |                                                    ^ 
1230 | /usr/local/clang/include/absl/container/internal/common.h : 32 : 9b:o onote: lmacro 'ABSL_INTERNAL_IF_false' defined here 
(*a   b32s | l#_dneofninnuel lA BfSuLn_cI)N(TTE*R NaAbLs_lI_Fn_uflallasbei(liift_ys_autniksnfoiwend),, 
.      .| .                                 ^)
 _/usr/local/clang/include/absl/base/nullability.h_:V289A:_34A:R Gnote: Sexpanded from macro 'absl_nullability_unknown'_
_
        | 289        ^ | 
#define absl_nullability_unknown _Null_unspecifiedIn file included from 
s2/s2contains_vertex_query.cc      :| 18                                 ^:

In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
s2/s2closest_point_query.cc:18  :
543In file included from  | ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
tIn file included from r/usr/local/clang/include/absl/status/status.hu:e67):
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                      ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h94::
496In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h9::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hmacro 'ABSL_INTERNAL_X' defined here:
1231:8:   496 | warning: #type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]d
efi n1231e |   A B S LT_*I NaTbEsRlN_AnLu_lXl(aFbuinlci,t yC_aulnlkeneo,w nK Qauragl),
       M| Q       ^u
al/usr/local/clang/include/absl/base/nullability.h,: 289K:V34a:l unote: eexpanded from macro 'absl_nullability_unknown',
 M  V289a | l#udee,f i.n.e. )a b s l _ n\u
l      l| a        ^b
ility_unknown _Null_unspecified
      |                                  ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2closest_point_query.cc542::183:
:In file included from  ../src/s2/s2closest_point_query.h:warning: 26passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s1angle.h:28:
  In file included from 542../src/s2/s2point.h | : 27 :
AIn file included from B../src/s2/s2coder.hS:L23_:
IIn file included from N/usr/local/clang/include/absl/status/status.hT:E67R:
NIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hL:_29X:
(In file included from i/usr/local/clang/include/absl/strings/cord.hn:s94e:
rIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h_:o31r:
_/usr/local/clang/include/absl/synchronization/mutex.ha:s1241s:i12g:n ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nser t1241_ | o r _ a sbsoiogln _(In file included from i*s2/s2coords.ccam:pb18ls:
,lIn file included from  _../src/s2/s2coords.h&n:&o105,n :
ncIn file included from uo../src/s2/base/logging.hln:ls21 t:
f In file included from u&/usr/local/clang/include/absl/log/check.hn,:c 37)f:
(aIn file included from Tl/usr/local/clang/include/absl/log/internal/check_impl.hs*e:, 21
a:
b      s/usr/local/clang/include/absl/log/internal/check_op.h| l  ^:_
511n:u13/usr/local/clang/include/absl/container/internal/btree_container.hl::l 509a:warning: b52type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i:
l inote: t  expanded from macro 'ABSL_INTERNAL_X'y511
_ | ucno  kn509ns | o tw  n c) h, a 
r       * |              ^a b
sAlB/usr/local/clang/include/absl/base/nullability.h_SnL:u_241IlN:TlEa22bR:lN Aenote: L expanded from macro 'absl_nonnull'_CA
ThT  eR241cI | kB#sUdTterEf_cCimAnPpTeU taRrbuEsDelI__BmnYpo(lnt(n
hui      lsl)|  )            ^_,
N o /usr/local/clang/include/absl/base/nullability.h n: n 257u :l 23l :
         |  note:                       ^expanded from macro 'absl_nullable' 

     257  |  # In file included from d s2/s2closest_point_query.cce : f 18 i:
n\In file included from 
e../src/s2/s2closest_point_query.h       :a| 26                                                   ^b:

sIn file included from l../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/common.h_:n:28u32l:
:lIn file included from a9../src/s2/s2point.hb:l: e27note:  :
macro 'ABSL_INTERNAL_IF_false' defined here_In file included from 
N../src/s2/s2coder.hu:   l23l32:
a | bIn file included from l#/usr/local/clang/include/absl/status/status.hde:e
67f      i:
n| In file included from e                      ^ /usr/local/clang/include/absl/status/internal/status_internal.h
A:B29S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hI:In file included from N94s2/s2coords.ccT:
E:In file included from R18/usr/local/clang/include/absl/strings/internal/cordz_info.hN:
A:LIn file included from 31_../src/s2/s2coords.h:
I:/usr/local/clang/include/absl/synchronization/mutex.hF105:_:
f1241In file included from a:../src/s2/base/logging.hl34s::e21( :
iIn file included from fwarning: _/usr/local/clang/include/absl/log/check.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s:
a37t:
i In file included from s1241/usr/local/clang/include/absl/log/internal/check_impl.hf | i:e d21 ,:
  /usr/local/clang/include/absl/log/internal/check_op.h .:b.512o.:)o 17l_: _ (Vwarning: *Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a_
bAsRl  G_512Sn_ | o_n 
n       u | l        ^ lc 
ofnusntc )c(hTa*rIn file included from  *s2/s2contains_vertex_query.cca :ba18sb:
lsIn file included from _l../src/s2/s2contains_vertex_query.hn_:un21lu:
llIn file included from laa/usr/local/clang/include/absl/container/btree_map.hbb:il67le:
i /usr/local/clang/include/absl/container/internal/btree_container.hts:y1542_,: u3cno:kn nswarning: otpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] wc
nh)a,r  
*542        | | a                                  ^b 
AsB/usr/local/clang/include/absl/base/nullability.hSl:_L289n_:Iu34Nl:Tl EaRnote: bNexpanded from macro 'absl_nullability_unknown'AlL
_eX   (si289n2 | s,#e
rdt      _e| foir                ^n_
ea /usr/local/clang/include/absl/base/nullability.hsa:sbi257sg:nl,23_ :ni unnote: lsleexpanded from macro 'absl_nullable'ar
bti  _l257oir | t_#yda_esufsniikngnno_eiwm npa lb_,sN lu&_l&n,lu _clulonansbsptle e&c ,i _fNfiauelldls
ea,      
b|       l                                 ^e| 
  ^

      | /usr/local/clang/include/absl/container/internal/btree_container.h                      ^:
511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  In file included from 511s2/s2coords.cc | : 18 :
 In file included from In file included from  ../src/s2/s2coords.h s2/s2closest_point_query.cc: : 10518 :
 :
In file included from  In file included from ../src/s2/base/logging.hA../src/s2/s2closest_point_query.h:B:S2126L:
_:
In file included from IIn file included from N/usr/local/clang/include/absl/log/check.hT../src/s2/s1angle.h:E:R3728N:
A:
In file included from LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hA../src/s2/s2point.h:T:21T27:
R:
/usr/local/clang/include/absl/log/internal/check_op.hIIn file included from B:../src/s2/s2coder.hU512:T:E2347_:
:CIn file included from  A/usr/local/clang/include/absl/status/status.hwarning: P:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T67U
R:
E  DIn file included from _512B/usr/local/clang/include/absl/status/internal/status_internal.h | Y: (29t h :
 icsoIn file included from n)s/usr/local/clang/include/absl/strings/cord.h)t:)  94 c:
h In file included from  a/usr/local/clang/include/absl/strings/internal/cordz_info.h r:*   31 a :
b /usr/local/clang/include/absl/synchronization/mutex.hs l :_ 1242 n: u 44 l:l  a warning:  btype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l e 
   s\1 
,1242        | c|  o                                                   ^n 
s t /usr/local/clang/include/absl/container/internal/common.h tc:yhpa31er:n*9a :ma ebnote:  macro 'ABSL_INTERNAL_IF_true' defined heresa
lb_s   nl31u: | l:#ltadyebpfleei n_sei2 d,AeB
SnL      t_| iI                                              ^tN
TyE</usr/local/clang/include/absl/base/nullability.hRTN:>A257:L:_:I23tF:_yt prnote: ueeexpanded from macro 'absl_nullable'*(
 ia  fb_257ss | al#td_einfsuiflinleead ba,i b.ls.il._)n tiufyl__sluaantbkilneso fw_ineN
du
      l      l| | a                                           ^b        ^l
e

/usr/local/clang/include/absl/base/nullability.h      :| 289                      ^:
34: note: expanded from macro 'absl_nullability_unknown'
In file included from   In file included from s2/s2coords.cc289s2/s2contains_vertex_query.cc: | :18#18:
d:
In file included from eIn file included from ../src/s2/s2coords.hf../src/s2/s2contains_vertex_query.h:i:105n21:
e:
In file included from  In file included from ../src/s2/base/logging.ha/usr/local/clang/include/absl/container/btree_map.h:b:21s67:
l:
In file included from _/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/check.hn::u54237l::
l3In file included from a:/usr/local/clang/include/absl/log/internal/check_impl.hb :i21warning: l:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i/usr/local/clang/include/absl/log/internal/check_op.h
t:y513_:u17n  :k542 n | warning: o type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w 
nA B  S_L513N_ | Iu N Tl E RlNcA_Lou_nnXs(stipn sceheacrri*tf_ iaoebrd_s
la      _s| sn                                 ^iog
nnn,u liln seexrptr_toerx_ta)s;s
i      g| n                ^_
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22&:& ,note:  expanded from macro 'absl_nonnull'c
on  s241t |  #&d,e In file included from ffs2/s2closest_point_query.ccailn:see18 ,:

aIn file included from       b../src/s2/s2closest_point_query.hs| l:  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_26
n:
o  nIn file included from n543u../src/s2/s1angle.hl | l:  28_ :
 NIn file included from o ../src/s2/s2point.h n:n 27 u:
 lIn file included from l 
 ../src/s2/s2coder.h       : |  23                     ^ :
 
In file included from  /usr/local/clang/include/absl/status/status.h : 67t:
rIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.he:)29;:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                  ~~~~~94
:
In file included from In file included from s2/s2coords.cc/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/internal/cordz_info.h:::1851131:
::
In file included from 47../src/s2/s2coords.h/usr/local/clang/include/absl/synchronization/mutex.h::: 1051249:
note: :In file included from expanded from macro 'ABSL_INTERNAL_X'8../src/s2/base/logging.h
:: 21:
warning:   In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]511/usr/local/clang/include/absl/log/check.h
 | : 37  :
1249 In file included from  |  /usr/local/clang/include/absl/log/internal/check_impl.h  :   21  :
  /usr/local/clang/include/absl/log/internal/check_op.h TA:*B514S :La_13bI:sN Tlwarning: E_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Rn
NoAnL  _nA514uT | TlcRoIlnBsU Tto Eb_cjheaCcrAtP*, T
aUb      RsEl| _D       ^_nBu
Yl(l/usr/local/clang/include/absl/base/nullability.hat:bh241lie:s )C22h)e:c)k  snote: t expanded from macro 'absl_nonnull'r c
 m p   f241 a |  l# sd eeI f mi pn le( 
        a | b             ^ s 
l _ /usr/local/clang/include/absl/base/nullability.hn o :n\n257
u:      l23l| :                                               ^~~~_ 
Nnote: oexpanded from macro 'absl_nullable'n
nu  l257l | 
#      d| e                     ^f
ine absl_nullable _In file included from Ns2/s2closest_point_query.ccu:l18l:
aIn file included from b../src/s2/s2closest_point_query.hl:e26
:
      In file included from | ../src/s2/s1angle.h                      ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2coords.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2coords.h::67105:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::9437:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::1250515::4317::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

   1250515 |  |         bc/usr/local/clang/include/absl/container/internal/btree_container.hoo:on545ls:t  24c(h:aa rbwarning: s*passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] la
b:s:l  t_545yn | p u e l_ lia db e lne t  is t1 y ,<  Tc > o:n :s t ty fpacehlas:er:*)*;  a
ab      sbl| _                       ^nsu
ll_/usr/local/clang/include/absl/container/internal/btree_container.hlna:ob496lne: n9su2:l, l
note:        macro 'ABSL_INTERNAL_X' defined herem| 
e                ^t
h  o496/usr/local/clang/include/absl/base/nullability.hd | :)#257(d:)e23)f:i
n       e|  note:                                           ^Aexpanded from macro 'absl_nullable'B
S
L/usr/local/clang/include/absl/base/nullability.h_:  I241N257T: | E#22dRe:NfA Linote: n_expanded from macro 'absl_nonnull'Xe
 (aF  bu241sn | cl#_,d neuCflialnalelb leaeb,es  l_KNQu_lunaloaln,b nMlueQlu
la      l | ,_                       ^NK
Voanlnuuel,lIn file included from  
s2/s2coords.ccM      :V| a18l                     ^:
u
In file included from e../src/s2/s2coords.h,: 105.:
.In file included from .../src/s2/base/logging.h): 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h :\37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h        ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, constIn file included from  s2/s2closest_point_query.ccc:h18a:
rIn file included from *../src/s2/s2closest_point_query.h :a26b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hs:223,:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                              ^67
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::25729::
23In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
257 | /usr/local/clang/include/absl/synchronization/mutex.h#:d1259/usr/local/clang/include/absl/container/internal/btree_container.he::f14i544:n:e  3warning: a:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b s
warning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
 n1259u | l  l a544 b |  l  e cA oB_SnLN_suItl NlTaT*Eb lRaNebA
Ls      l_| _Xn(                      ^io
nnnsuelrIn file included from lts2/s2coords.cc_ o:or18_ba:
jsIn file included from se../src/s2/s2coords.hicg:tn105,, :
i
In file included from n      s../src/s2/base/logging.h| e:r             ^21t
_:
oIn file included from /usr/local/clang/include/absl/base/nullability.hr/usr/local/clang/include/absl/log/check.h:_:a24137s::
s22In file included from i:g/usr/local/clang/include/absl/log/internal/check_impl.hn :_21inote: m:
expanded from macro 'absl_nonnull'p/usr/local/clang/include/absl/log/internal/check_op.h
l:,516   :&24117& | :,# dc eowarning: fntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]si
tn e&   ,516 a | tbr s ul e_, nc
oo      nn| n  ^sut
l lc h/usr/local/clang/include/absl/container/internal/btree_container.ha_:rN509*o :anb52sn:ul l_note: nlexpanded from macro 'ABSL_INTERNAL_X'o
n
n      u| l                       ^l509 
e | x p r t e x t ) ; 
       A| B                ^S
LIn file included from _/usr/local/clang/include/absl/base/nullability.hs2/s2closest_point_query.ccI:N:241T18E::
R22NIn file included from :A../src/s2/s2closest_point_query.h L:note: _26Aexpanded from macro 'absl_nonnull':
T
In file included from T../src/s2/s1angle.h  R:241I28 | B:
U#TIn file included from dEe../src/s2/s2point.h_fC:AiP27Tn:
UeRIn file included from E ../src/s2/s2coder.hDa:_b23BsY:
l(In file included from _t/usr/local/clang/include/absl/status/status.hnh:io67nsn:
)u)In file included from ,l/usr/local/clang/include/absl/status/internal/status_internal.h l:   _29 N :
 o In file included from n /usr/local/clang/include/absl/strings/cord.hn : u 94 l:
l In file included from  
/usr/local/clang/include/absl/strings/internal/cordz_info.h        :|                       ^31 
 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1260 : 43\:
       | warning:                                                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

In file included from s2/s2coords.cc/usr/local/clang/include/absl/container/internal/common.h:: 18311260:
: | In file included from 9 ../src/s2/s2coords.h: :  105note:  :
bmacro 'ABSL_INTERNAL_IF_true' defined hereIn file included from o
../src/s2/base/logging.ho:l   21 31:
( | In file included from #a/usr/local/clang/include/absl/log/check.hdb:esf37il:
n:eIn file included from : /usr/local/clang/include/absl/log/internal/check_impl.htA:yB21SpL:
_e/usr/local/clang/include/absl/log/internal/check_op.hI_N:iT517Ed:ReN13nA:tLi t_warning: Iytype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]F<_
Tt>r  :u517:e | (ticfoyn_sstap teic:h:as*fr *iae bads,lb _.sn.l.o_)n nunliuflla_lsba ltmee iCsthfeiheodcdk
)s      (t)r| 
c        ^a      
s| e                                          ^c
mp/usr/local/clang/include/absl/base/nullability.ht:r241u:e22I:m pIn file included from note: ls2/s2contains_vertex_query.ccexpanded from macro 'absl_nonnull'(:

18      :
|               ^In file included from 241
../src/s2/s2contains_vertex_query.h | :/usr/local/clang/include/absl/base/nullability.h#21:d:
257eIn file included from :f/usr/local/clang/include/absl/container/btree_map.h23i::n67 e:
note:  /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nullable'a:
b544s:  l3_257:n |  o#warning: dn'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]neu
fliln e_   aN544bo | sn ln_ unAlBuSllL
l_      aI| bN                     ^lT
eE R_NNAuLl_lXa(bilnes
e      r| t                      ^_
or_aIn file included from ss2/s2coords.ccs:i18g:
nIn file included from ,../src/s2/s2coords.h :i105n:
sIn file included from e../src/s2/base/logging.hr:t21_:
oIn file included from r/usr/local/clang/include/absl/log/check.h_:a37s:
sIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hg:n21_:
i/usr/local/clang/include/absl/log/internal/check_op.hm:p518l:,17In file included from  :s2/s2closest_point_query.cc& &:warning: ,18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :

cIn file included from o../src/s2/s2closest_point_query.hn:  s26t518:
  | In file included from & ../src/s2/s1angle.h, :  28t :
rcIn file included from ou../src/s2/s2point.hen:,s27
t:
       In file included from c| ../src/s2/s2coder.hh  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:a
23r:
  *In file included from 545 /usr/local/clang/include/absl/status/status.h | a: b67s :
l In file included from _ /usr/local/clang/include/absl/status/internal/status_internal.hn :u 29l :
 lIn file included from a /usr/local/clang/include/absl/strings/cord.h b: l94 e:
  In file included from  s/usr/local/clang/include/absl/strings/internal/cordz_info.h 1: ,31  :
 c/usr/local/clang/include/absl/synchronization/mutex.hfo:an1279ls:st35e :)c ;hwarning: 
atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      r
| *                  ~~~~~~ 
ab s/usr/local/clang/include/absl/container/internal/btree_container.hl1279_: | n509vu:ol47il:adb  lnote: Reexpanded from macro 'ABSL_INTERNAL_X'e 
gsi2s,  t
509e       | r|  M                 ^u 
t e/usr/local/clang/include/absl/base/nullability.h x : P 257r :o 23fA:iB lSnote: eLexpanded from macro 'absl_nullable'r_
(Iv  No257Ti | Ed#R dN(eA*fLai_bnAseTl T_aRnbIosBnlUn_TunElu_llC AlfPanTb)Ul(ReiE nD_tN_6uB4lY_l(tat bhwliasei)
t)      _,| c                       ^y 
c l e s ) )In file included from  ;s2/s2coords.cc 
 :       18 | :
                                   ^ In file included from  
../src/s2/s2coords.h : 105/usr/local/clang/include/absl/base/nullability.h :
: In file included from 241 ../src/s2/base/logging.h: :22 21: :
  In file included from note: \/usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nonnull'
:
      37|   :
                                              ^~~~241In file included from 
 | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
f/usr/local/clang/include/absl/log/internal/check_op.hi:/usr/local/clang/include/absl/container/internal/btree_container.hn518:e:544 47:a:3b :s warning: lwarning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
n
o/usr/local/clang/include/absl/container/internal/btree_container.hn  :n518511u | :l 52l :   _ note: Ncexpanded from macro 'ABSL_INTERNAL_X'oo
nnnsu  tl 511lc | 
 h       a|  r                     ^ *
   a b s l _AnBuSlLl_aIbNlTeE RsN1A,L _cAoTnTsRtI BIn file included from cUs2/s2closest_point_query.cchT:Ea18_r:
*CIn file included from  A../src/s2/s2closest_point_query.haP:bT26Us:
RlIn file included from _E../src/s2/s1angle.hnD:u_28lB:
lYIn file included from a(../src/s2/s2point.hbt:hl27ei:
 sIn file included from s)../src/s2/s2coder.h2):,)23
 :
       In file included from |  /usr/local/clang/include/absl/status/status.h                                              ^ :
 67 /usr/local/clang/include/absl/base/nullability.h:
 :In file included from  257/usr/local/clang/include/absl/status/internal/status_internal.h :: 2329 ::
  In file included from  note: /usr/local/clang/include/absl/strings/cord.h expanded from macro 'absl_nullable': 
94 :
   In file included from  257/usr/local/clang/include/absl/strings/internal/cordz_info.h  | : #31 d:
 e/usr/local/clang/include/absl/synchronization/mutex.h f: i1293\n:
e33       :a|                                                     ^b
warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l/usr/local/clang/include/absl/container/internal/common.h
_:n32u: l91293l: | a vbnote: olmacro 'ABSL_INTERNAL_IF_false' defined hereie
d  _R   Ne32ug | li#sldtaeebfrliMen
eu       tA| eB                      ^SxL
T_rIaNcTIn file included from eEs2/s2coords.ccrR:(N18vA:
oLIn file included from i_../src/s2/s2coords.hdI: F105(_:
*faIn file included from abl../src/s2/base/logging.hss:el(21_i:
nfIn file included from o_/usr/local/clang/include/absl/log/check.hns:na37utl:
liIn file included from  s/usr/local/clang/include/absl/log/internal/check_impl.hff:ni21)e:
(d/usr/local/clang/include/absl/log/internal/check_op.hc,:o 519n.:s.17t.: ) c warning: h_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a_
rV*A   _519aA | RbG sS l_ __ nc
oo      nn| n        ^sut
l lc hmasrg*, 
a      b| s                                ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: eexpanded from macro 'absl_nonnull'x
pr  t241e | x#td)e;f
i      n| e                ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nIn file included from os2/s2closest_point_query.ccn:n18u:
lIn file included from l../src/s2/s2closest_point_query.h :_26N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from In file included from s2/s2coords.cc/usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2contains_vertex_query.cc:::183118:
:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hIn file included from ../src/s2/s2coords.h:../src/s2/s2contains_vertex_query.h:1293:105:21:
62:
In file included from :In file included from ../src/s2/base/logging.h /usr/local/clang/include/absl/container/btree_map.h::warning: 2167type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:

In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/check.h::547 37:1293:
23 | In file included from :v/usr/local/clang/include/absl/log/internal/check_impl.h o:warning: i21passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d:

 /usr/local/clang/include/absl/log/internal/check_op.hR:  e520547g: | i13 s: t  ewarning: r type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]M 
u t e x   T520 r |  ac co e nr s( tv  o cihtdar ru(*e* )a;ab
bs      sll| __                      ^nn
ounl/usr/local/clang/include/absl/container/internal/btree_container.hnl:aub496ll:le9  :fC nhnote: e)macro 'ABSL_INTERNAL_X' defined herec(
kcsotn  rsc496ta |  #scdehecafmrip*nfea  laAsbBesSIlLm_pn_loI(nN
nT      uE| lR            ^lN
 Am/usr/local/clang/include/absl/base/nullability.hLs:_gX,(257F
u:n      c23| ,:                                                             ^  C
note: aexpanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.hl
:l241  e:e25722, |  :#K dQnote: euexpanded from macro 'absl_nonnull'af
iln,   e241M Q | ua#bdsaellf_,in nKueVl alalabubsell,e_  nM_oVNnaunllululaelb, l _e.N
.o      .n| )n                       ^u 
l l 
       In file included from \| 
                     ^s2/s2coords.cc      
:| 18        ^:

In file included from ../src/s2/s2coords.h:105:
In file included from In file included from ../src/s2/base/logging.hs2/s2closest_point_query.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2closest_point_query.h::3726:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1angle.h::2128:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h521::2717:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67  :
521In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:n94s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:h31a:
r/usr/local/clang/include/absl/synchronization/mutex.h*: 1294a:b62s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla b1294l | e   s 1 ,   c o n s t   c h a r *   a b s l _ n u l l/usr/local/clang/include/absl/container/internal/btree_container.h a:b 546l :e  3 s: 2  , warning: 
 passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]       
|                  ^ 
    546/usr/local/clang/include/absl/base/nullability.h  | :  257  A: B S23 L: _  Inote: N expanded from macro 'absl_nullable'Tc
EoIn file included from R  NnAs2/s2closest_cell_query.cc257sL:_ | Xt18#(di n:
seefrvtIn file included from ion_e../src/s2/s2closest_cell_query.h iod:arb_*a26ss l:
_saIn file included from bniu../src/s2/s1angle.hlsgl:_lna28bn,:
 loeIn file included from  in../src/s2/s2point.h_nn:Nsu27luel:
llr In file included from oatb../src/s2/s2coder.hb_lo:rj_ea
23,s      s:

| iIn file included from       /usr/local/clang/include/absl/status/status.h                      ^g| n:_
i                                                             ^67m
:
pIn file included from /usr/local/clang/include/absl/base/nullability.hl/usr/local/clang/include/absl/status/internal/status_internal.h,:In file included from : 241s2/s2coords.cc29&:::
&2218In file included from ,::
/usr/local/clang/include/absl/strings/cord.h  In file included from :c../src/s2/s2coords.honote: 86:nexpanded from macro 'absl_nonnull's:
t105 
&/usr/local/clang/include/absl/strings/cord_analysis.h:
,:   In file included from 32t241../src/s2/base/logging.h:r | :47u#21:ed:
e ,In file included from 
fwarning: /usr/local/clang/include/absl/log/check.h      itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:| n  ^
37e
:
 In file included from a/usr/local/clang/include/absl/container/internal/btree_container.h   /usr/local/clang/include/absl/log/internal/check_impl.hb:32:s509 | 21l:s:
_52i/usr/local/clang/include/absl/log/internal/check_op.hn:oz: ne521note: n_u:expanded from macro 'ABSL_INTERNAL_X'tl47
 l:  G  509e_ | warning:  t N type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] E o
s nt n    iu521l mA | laBt 
Se       Ld |  _MI                     ^NcTeE
RoNmnoAsrtLy _UAcshaTaTgRrI*e B(aUcbTosEn_ls_CnIn file included from tAuPs2/s2closest_point_query.ccT lC:UlRoE18arbD:
_dlRIn file included from BeY es../src/s2/s2closest_point_query.h1(pt:,* hc26o ia:
bnsIn file included from )s)s,../src/s2/s1angle.hlt   : _cn28 hoa:
 nrIn file included from *   a n../src/s2/s2point.hb u :sl l 27l  r:
e_ In file included from  pn../src/s2/s2coder.hu ) :l; 
 23l       :
 a| bIn file included from                                                ^ l /usr/local/clang/include/absl/status/status.h\
e:
 67      s:
2/usr/local/clang/include/absl/base/nullability.h,| 
In file included from :                                                   ^      /usr/local/clang/include/absl/status/internal/status_internal.h241
| ::                                              ^29/usr/local/clang/include/absl/container/internal/common.h22
:
::In file included from 31/usr/local/clang/include/absl/base/nullability.h /usr/local/clang/include/absl/strings/cord.h:::note: 925794expanded from macro 'absl_nonnull':::

 23In file included from :note:   /usr/local/clang/include/absl/strings/internal/cordz_info.h macro 'ABSL_INTERNAL_IF_true' defined here241:
note:  | 31expanded from macro 'absl_nullable'#:
   
d/usr/local/clang/include/absl/synchronization/mutex.h31e  f: | 257i1309# | n#:ddee35e f:ifa bniewarning:  snletype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] Aa_b
BnsSlLo_ _nIn1309unNu | llTlvlEa boRiN_AlLd_Neo  _InFR_Ntnreuguulei(llsaiblltef
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r      s      aC| | toi                     ^                      ^ns
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diVeadr,TIn file included from  rs2/s2coords.cc.a.:c.18e):
 rIn file included from i(../src/s2/s2coords.hfv:_o105si:
adIn file included from In file included from t is2/s2closest_cell_query.ccs../src/s2/base/logging.hf(:*:i18a21e:
b:
dIn file included from sIn file included from 
../src/s2/s2closest_cell_query.hl/usr/local/clang/include/absl/log/check.h      :_:| 26        ^n37:

o:
In file included from nIn file included from ../src/s2/s1angle.hn/usr/local/clang/include/absl/log/internal/check_impl.h:u:28l21:
l:
In file included from  /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.hf::n522)In file included from 27:(s2/s2contains_vertex_query.cc:
17
:In file included from :      18../src/s2/s2coder.h | :
:warning:                                   ^In file included from 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/s2contains_vertex_query.h:

:In file included from /usr/local/clang/include/absl/base/nullability.h21/usr/local/clang/include/absl/status/status.h  ::
:522241In file included from 67 | :/usr/local/clang/include/absl/container/btree_map.h:
 22:In file included from  : 67/usr/local/clang/include/absl/status/internal/status_internal.h  :
:note: c/usr/local/clang/include/absl/container/internal/btree_container.ho29nexpanded from macro 'absl_nonnull'::
s
t546In file included from  :c  /usr/local/clang/include/absl/strings/cord.h3h241::a | 86# r:
*dwarning: e/usr/local/clang/include/absl/strings/cord_analysis.h 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]afb:s
i50ln:_e49n o  n:a546n b | u lwarning: s ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] lA_B
enxSoLp_r   tneI50nxNt | )uTlsl;E
RiN A      Lz_e| _                ^N_Xt
 o(G/usr/local/clang/include/absl/base/nullability.hnie:tnnus241eMrl:lot22_
r:o      re P| _                     ^anote: srs
expanded from macro 'absl_nonnull'ei
cgiIn file included from s  ns2/s2closest_point_query.cce241,: Mi | 18en#s:
emdIn file included from erot../src/s2/s2closest_point_query.hfr_y:ionUe26rs :
_aaIn file included from agsb../src/s2/s1angle.hses:l(i28_cg:
noonnIn file included from nn_../src/s2/s2point.husitm:l pC27oll :
r,_ In file included from &d&N,o../src/s2/s2coder.hnRn u:lec23lpo*n:
s
 In file included from t      a/usr/local/clang/include/absl/status/status.h | b:&                     ^s67,
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:
u      In file included from l| /usr/local/clang/include/absl/strings/cord.hl  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ :
r94e:
  pIn file included from 547)/usr/local/clang/include/absl/strings/internal/cordz_info.h | ;: 
 31        :
|  /usr/local/clang/include/absl/synchronization/mutex.h                                                ^ :
 1310 :/usr/local/clang/include/absl/base/nullability.h 17: : 241   :warning:  22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] : 
  note:   expanded from macro 'absl_nonnull't1310
r | u  e )241 ; |  
#       dc| eo                  ~~~~~fn
isnte  /usr/local/clang/include/absl/container/internal/btree_container.hca:hb509as:rl47*_: n aonote: bnexpanded from macro 'ABSL_INTERNAL_X'sn
lu_lnl  o 509n_ | n Nu ol n ln   um l sl g 
,A      B S| Lc_                     ^oI
nNsTtE RvNoAiLd_*A TaTbRsIlB_UnIn file included from Tos2/s2closest_cell_query.ccEn_:nC18AuP:
lTIn file included from Ul../src/s2/s2closest_cell_query.hR E:cD26_vB:
)YIn file included from )(;t../src/s2/s1angle.h
h:i      s28)| :
                ^)In file included from ,
../src/s2/s2point.h :/usr/local/clang/include/absl/base/nullability.h 27 ::
 241In file included from  :../src/s2/s2coder.h 22: :23  :
 In file included from  note: /usr/local/clang/include/absl/status/status.h expanded from macro 'absl_nonnull': 
 67 :
   In file included from 241 /usr/local/clang/include/absl/status/internal/status_internal.h  |  : #29 d :
e In file included from  f/usr/local/clang/include/absl/strings/cord.h i:\n
86e      :
 | /usr/local/clang/include/absl/strings/cord_analysis.ha                                              ^~~~:b
56s:l56_:n owarning: n/usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
u546l:l3    :56_  | Nwarning: sopassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]inz
ne/usr/local/clang/include/absl/container/internal/btree_container.hu_:lt511l 
:G      e52| t:                     ^E 
snote: texpanded from macro 'ABSL_INTERNAL_X'i
matIn file included from   es2/s2closest_point_query.cc511d:F | 18a :
i In file included from r ../src/s2/s2closest_point_query.h S :h 26a :
r In file included from e ../src/s2/s1angle.hM :eA28mB:
oSIn file included from rL../src/s2/s2point.hy_:UI27sN:
aTIn file included from gE../src/s2/s2coder.heR:N(23AcL:
o_In file included from nA/usr/local/clang/include/absl/status/status.hsT:tT67R I:
CBIn file included from UoT/usr/local/clang/include/absl/status/internal/status_internal.hrE:d_29RC:
eAIn file included from PpT/usr/local/clang/include/absl/strings/cord.hU*:R E94aD:
b_In file included from sB/usr/local/clang/include/absl/strings/internal/cordz_info.hlY:_(31nt:
oh/usr/local/clang/include/absl/synchronization/mutex.hni:ns1310)u:)l)47l :   r warning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p 
 ) ;  
 1310        | |                                                          ^  
    /usr/local/clang/include/absl/base/nullability.h c: o241 n: s22 t:    cnote:  hexpanded from macro 'absl_nonnull' a
 r\  *
241        | a| #b                                                   ^ds
elf_/usr/local/clang/include/absl/container/internal/common.hin:no31en: n9au:bl slnote: l macro 'ABSL_INTERNAL_IF_true' defined here_m
nsogn   ,n31 u | cl#oldn es_ftNi onvneon iuAdlB*lS 
La      _b| Is                     ^Nl
T_EnRoNnAnLu_lIlF _ctvr)u)e;(
i      f| _                                              ^s
at/usr/local/clang/include/absl/base/nullability.hi:s241f:i22e:d ,note:  expanded from macro 'absl_nonnull'.
..  )241  | i#fd_esfaitnies faibesdl
_      n| o        ^n
null _NonnIn file included from us2/s2contains_vertex_query.ccl:l18
:
      In file included from | ../src/s2/s2contains_vertex_query.h                     ^:
21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MVIn file included from as2/s2closest_point_query.ccl:u18e:
,In file included from  ../src/s2/s2closest_point_query.h.:.26.:
)In file included from  ../src/s2/s1angle.h : 28 :
 In file included from \../src/s2/s2point.h
:      27| :
        ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241/usr/local/clang/include/absl/container/internal/btree_container.h | :#553d:e3f:i nwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
absl  _553n | o n nAuBlSlL __INNoTnEnRuNlAlL
_      X| (                     ^i
nsert_or_assign, insert_or_aIn file included from ss2/s2closest_point_query.ccs:i18g:
nIn file included from _../src/s2/s2closest_point_query.hi:m26p:
lIn file included from ,../src/s2/s1angle.h :&28&:
,In file included from  ../src/s2/s2point.h&:&27,:
 In file included from t../src/s2/s2coder.hr:u23e:
,In file included from  /usr/local/clang/include/absl/status/status.ht:r67u:
eIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h;:
29      :
| /usr/local/clang/include/absl/strings/cord.h  ^:
110:55/usr/local/clang/include/absl/container/internal/btree_container.h:: 509:warning: 52type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_INTERNAL_X'
  110 | v  o509i | d   A p p e n d C o rAdBTSoLS_tIrNiTnEgR(NcAoLn_sAtT TCRoIrBdU&T Es_rCcA,P TsUtRdE:D:_sBtYr(itnhgi*s )a)b,s l _ n o n n u l l   d s t ) ; 
        |                                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|                                                     ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/common.h
:31:  9241: |  #note: dmacro 'ABSL_INTERNAL_IF_true' defined heree
fin   e31  | a#bdself_innoen nAuBlSlL __INNoTnEnRuNlAlL
_      I| F                     ^_
true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2/s2closest_point_query.cc511: | 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:A67T:
TIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hI:B29U:
T/usr/local/clang/include/absl/strings/cord.hE:_425C:A62P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_BY(  t425h | i s )f)r)i e n d   v o i d   C o p y C o r d T o S t r i n\g
(      c| o                                              ^~~~n
st Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _/usr/local/clang/include/absl/container/internal/btree_container.hN:o555n:n3u:l lwarning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                     ^
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl,In file included from  s2/s2closest_point_query.ccc:o18n:
sIn file included from t../src/s2/s2closest_point_query.h :&26,:

In file included from       ../src/s2/s1angle.h| :  ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/btree_container.h::27509:
:In file included from 52../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :50929 | :
 /usr/local/clang/include/absl/strings/cord.h : 480 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L480_ | I N T E RuNsAiLn_gA TpToRiInBtUeTrE _=C AcPoTnUsRtE Dv_aBlYu(et_htiysp)e)*,  a b s l _ n o n n u l l ; 
        |                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:                                                    ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/common.h  :24132 | :#9d:e fnote: imacro 'ABSL_INTERNAL_IF_false' defined heren
e a   b32s | l#_dneofninnuel lA B_SNLo_nInNuTlElR
N      A| L                     ^_
IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_orIn file included from _s2/s2closest_point_query.cca:s18s:
iIn file included from g../src/s2/s2closest_point_query.hn:,26 :
iIn file included from n../src/s2/s1angle.hs:e28r:
tIn file included from _../src/s2/s2point.ho:r27_:
aIn file included from s../src/s2/s2coder.hs:i23g:
nIn file included from _/usr/local/clang/include/absl/status/status.hh:i67n:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hi:m29p:
l/usr/local/clang/include/absl/strings/cord.h,: 501c:o52n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
,
      |   ^  
501 | /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52e:x pnote: lexpanded from macro 'ABSL_INTERNAL_X'i
cit   511C | h u n k I t e r a t oArB(ScLo_rIdN_TiEnRtNeArLn_aAlT:T:RCIoBrUdTREe_pC*A PaTbUsRlE_Dn_oBnYn(utlhli st)r)e)e ) ; 
        |                                                     ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #\d
e      f| i                                                   ^n
e /usr/local/clang/include/absl/container/internal/common.ha:b32s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_false' defined heren
ull    32_ | N#odnenfuilnle
       A| B                     ^S
L_INTERNAL_IF_false(if_In file included from ss2/s2closest_point_query.cca:t18i:
sIn file included from f../src/s2/s2closest_point_query.hi:e26d:
,In file included from  ../src/s2/s1angle.h.:.28.:
)In file included from  ../src/s2/s2point.h_:_27V:
AIn file included from _../src/s2/s2coder.hA:R23G:
SIn file included from _/usr/local/clang/include/absl/status/status.h_:
67      :
| In file included from         ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2contains_vertex_query.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2contains_vertex_query.h:
:21/usr/local/clang/include/absl/strings/cord.h:
:In file included from 507/usr/local/clang/include/absl/container/btree_map.h::4367::
 /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]558
:3:   warning: 507passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
      v558o | i d  AIBnSiLt_TIrNeTeE(RcNoArLd__Xi(nitnesrenratl_:o:rC_oarsdsRiegpn*,  aibnssle_rnto_nonru_lals stirgene_)h;i
n      t| _                                          ^i
mp/usr/local/clang/include/absl/base/nullability.hl:,241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
&,  
241       | | #  ^d
ef/usr/local/clang/include/absl/container/internal/btree_container.hi:n509e: 52a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n509u | l l   _ N o n n u l lA
B      S| L                     ^_
INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                       In file included from  s2/s2closest_point_query.cc\:
18      :
| In file included from                                                    ^../src/s2/s2closest_point_query.h
:26:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s1angle.h32::289:
:In file included from  ../src/s2/s2point.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here27
:
In file included from ../src/s2/s2coder.h:   2332:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29A:
B/usr/local/clang/include/absl/strings/cord.hS:L525_:I35N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL_I  F525_ | f a l s ea(bisfl_:s:actoirsdf_iiendt,e r.n.a.l): :_C_oVrAd_RAeRpG*S _a_b
s      l| _        ^n
ullable cuIn file included from rs2/s2contains_vertex_query.ccr:e18n:
tIn file included from _../src/s2/s2contains_vertex_query.hl:e21a:
fIn file included from _/usr/local/clang/include/absl/container/btree_map.h :=67 :
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l558l:p3t:r ;warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|                                   ^
  558/usr/local/clang/include/absl/base/nullability.h | : 257 :A23B:S Lnote: _expanded from macro 'absl_nullable'I
NT  E257R | N#AdLe_fXi(nien saebrstl__onru_lalsasbilgen ,_ Niunlslearbtl_eo
r      _| a                      ^s
sign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) ifIn file included from _s2/s2closest_point_query.ccs:a18t:
iIn file included from s../src/s2/s2closest_point_query.hf:i26e:
dIn file included from 
../src/s2/s1angle.h      :| 28        ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2contains_vertex_query.cc582::1837:
:In file included from  ../src/s2/s2contains_vertex_query.h:warning: 21:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h  :582558 | : 3 :   warning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]x
plici  t558  | C h uAnBkSRLa_nIgNeT(EcRoNnAsLt_ XC(oirnds*e ratb_solr__naosnsniuglnl,  cionrsde)r t:_ ocro_rads_s(icgonr_dh)i n{t}_
i      m| p                                    ^l
, c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :& ,note: 
expanded from macro 'absl_nonnull'      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #  d559e | f i n e   a b s l _ n o n n u l l   _cNoonnsntu l&l,
       f| a                     ^l
se, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                  In file included from  s2/s2closest_point_query.ccc:o18n:
sIn file included from t../src/s2/s2closest_point_query.h_:i26t:
eIn file included from r../src/s2/s1angle.ha:t28o:
rIn file included from (../src/s2/s2point.hh:i27n:
tIn file included from )../src/s2/s2coder.h :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:I67N:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hR:N29A:
L/usr/local/clang/include/absl/strings/cord.h_:C588O:M17M:A )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  588 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 :c47o:n snote: texpanded from macro 'ABSL_INTERNAL_X' 
Cord  *511  | a b s l _ n o n n u lAlB ScLo_rIdN_T;E
R      N| A                ^L
_A/usr/local/clang/include/absl/base/nullability.hT:T241R:I22B:U Tnote: Eexpanded from macro 'absl_nonnull'_
CA  P241T | U#RdEeDf_iBnYe( tahbissl)_)n)o n n u l l   _ N o n n u l l 
        |                       ^ 
     \
      |                                               ^~~~
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |  In file included from  s2/s2closest_point_query.ccA:B18S:
LIn file included from _../src/s2/s2closest_point_query.hI:N26T:
EIn file included from R../src/s2/s1angle.hN:A28L:
_In file included from X../src/s2/s2point.h(:i27n:
sIn file included from e../src/s2/s2coder.hr:t23_:
oIn file included from r/usr/local/clang/include/absl/status/status.h_:a67s:
sIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hg:n29,:
 /usr/local/clang/include/absl/strings/cord.hi:n655s:e39r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_as  s655i | g n _ h ienxtp_liimcpilt,  CchoanrsItt e&r,a
t      o| r  ^(
co/usr/local/clang/include/absl/container/internal/btree_container.hn:s509t: 52C:o rnote: dexpanded from macro 'ABSL_INTERNAL_X'*
 ab  s509l | _ n o n n u l l   c oArBdS)L
_      I| N                                      ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22A:T Tnote: Rexpanded from macro 'absl_nonnull'I
BU  T241E | _#CdAePfTiUnReE Da_bBsYl(_tnhoinsn)u)l,l   _ N o n n u l l 
        |                       ^ 
          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNIn file included from As2/s2closest_point_query.ccL:_18I:
FIn file included from _../src/s2/s2closest_point_query.ht:r26u:
eIn file included from (../src/s2/s1angle.hi:f28_:
sIn file included from a../src/s2/s2point.ht:i27s:
fIn file included from i../src/s2/s2coder.he:d23,:
 In file included from ./usr/local/clang/include/absl/status/status.h.:.67):
 In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hf:_29s:
a/usr/local/clang/include/absl/strings/cord.ht:i667s:f44i:e dwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
        ^
  667 |   statiIn file included from cs2/s2contains_vertex_query.cc :C18o:
rIn file included from d../src/s2/s2contains_vertex_query.h :A21d:
vIn file included from a/usr/local/clang/include/absl/container/btree_map.hn:c67e:
A/usr/local/clang/include/absl/container/internal/btree_container.hn:d561R:e3a:d (warning: C'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
arIte  r561a | t o rA*B SaLb_sIlN_TnEoRnNnAuLl_lX (iitn,s esritz_eo_rt_ ans_sbiygtne,s )i;n
s      e| r                                           ^t
_o/usr/local/clang/include/absl/base/nullability.hr:_241a:s22s:i gnote: nexpanded from macro 'absl_nonnull'_
hi  n241t | _#idmepfli,n ec oanbsstl _&n,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l   _562N | o n n u l l 
        |                       ^ 
        const &, true, falIn file included from ss2/s2closest_point_query.cce:,18
:
      In file included from | ../src/s2/s2closest_point_query.h                  ~~~~~~~~~~~~~~~~~~~~~:
26:
In file included from ../src/s2/s1angle.h  :56328 | :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
n/usr/local/clang/include/absl/strings/cord.hs:t674_:i37t:e rwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
or(h  i674n | t )  sAtBaStLi_cI NvToEiRdN AALd_vCaOnMcMeA()C;h
a      r| I                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
era/usr/local/clang/include/absl/container/internal/btree_container.ht:o509r:*47 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_no  n509n | u l l   i t ,   s i zAeB_StL _nI_NbTyEtReNsA)L;_
A      T| T                                    ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T241E:_22C:A Pnote: Texpanded from macro 'absl_nonnull'U
RE  D241_ | B#Yd(etfhiinse) )a,b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
\
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))        In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h\:
27      :
| In file included from                                                    ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/status/status.h32::679:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29macro 'ABSL_INTERNAL_IF_false' defined here:

/usr/local/clang/include/absl/strings/cord.h:730   :3236 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   A730B | S L _ I NeTxEpRlNiAcLi_tI FC_hfaarlRsaen(gief(_csoantsits fCioerdd,*  .a.b.s)l __n_oVnAn_uAlRlG Sc_o_r
d      )|          ^:
 cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &In file included from ,s2/s2closest_point_query.cc
:      18| :
  ^In file included from 
../src/s2/s2closest_point_query.h:26/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509../src/s2/s1angle.h::5228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'ABSL_INTERNAL_X'27
:
In file included from ../src/s2/s2coder.h:23  :
509In file included from  | /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h :A795B:S43L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA  L795_ | A T TfRrIiBeUnTdE _vCoAiPdT UARbEsDl_FBoYr(mtahtiFsl)u)s,h ( a b s l : : C o r d *   a b s l _ n o n n u l\l
       c| o                                                   ^r
d,/usr/local/clang/include/absl/container/internal/common.h
:      31| :                                          ^9
: note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_true' defined here:
241:22:    31 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_ltlr u_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |         In file included from  s2/s2closest_point_query.cc :A18B:
SIn file included from L../src/s2/s2closest_point_query.h_:I26N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hA:T27T:
RIn file included from I../src/s2/s2coder.hB:U23T:
EIn file included from _/usr/local/clang/include/absl/status/status.hC:A67P:
TIn file included from U/usr/local/clang/include/absl/status/internal/status_internal.hR:E29D:
_/usr/local/clang/include/absl/strings/cord.hB:Y898(:t27h:i swarning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
,      898  |      f r i e n d   c o n s t   C o r d\z
I      n| f                                              ^~~~o
* abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_564n:u3l:l awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
e/usr/local/clang/include/absl/container/internal/btree_container.h :G511e:t52C:o rnote: dexpanded from macro 'ABSL_INTERNAL_X'z
Inf  o511F | o r T e s t i n g ( 
A      B| S                          ^L
_IN/usr/local/clang/include/absl/base/nullability.hT:E257R:N23A:L _note: Aexpanded from macro 'absl_nullable'T
TR  I257B | U#TdEe_fCiAnPeT UaRbEsDl__BnYu(ltlhaibsl)e) )_ N u l l a b l e 
        |                        ^ 
           \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assiIn file included from gs2/s2closest_point_query.ccn:_18h:
iIn file included from n../src/s2/s2closest_point_query.ht:_26i:
mIn file included from p../src/s2/s1angle.hl:,28 :
cIn file included from o../src/s2/s2point.hn:s27t:
 In file included from &../src/s2/s2coder.h,:
23      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 565/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 927 : 43 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       927  | c o n s t   & ,   t r u e ,   t r u e , 
        |                    ~~~~~~~~~~~~~~~~~~~~ 
      566  |         C o r d R e p *   a b s l _ ncuolnlsatb_liet erreapt)o;r
(      h| i                                          ^n
t) /usr/local/clang/include/absl/base/nullability.hA:B257S:L23_:I Nnote: Texpanded from macro 'absl_nullable'E
RN  A257L | _#CdOeMfMiAn)e; 
a      b| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l511a:b47l:e  note: _expanded from macro 'ABSL_INTERNAL_X'N
ull  a511b | l e 
        |                        ^ 
    ABSL_INTERNAL_ATTIn file included from Rs2/s2closest_point_query.ccI:B18U:
TIn file included from E../src/s2/s2closest_point_query.h_:C26A:
PIn file included from T../src/s2/s1angle.hU:R28E:
DIn file included from _../src/s2/s2point.hB:Y27(:
tIn file included from h../src/s2/s2coder.hi:s23):
)In file included from )/usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 929 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      929  |   \ 
        | v                                              ^~~~o
id Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_n/usr/local/clang/include/absl/container/internal/btree_container.hu:l568l:a3b:l ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
Null  a568b | l e 
A      B| S                      ^L
_INTERNAL_X(insert_orIn file included from _s2/s2closest_point_query.cca:s18s:
iIn file included from g../src/s2/s2closest_point_query.hn:,26 :
iIn file included from n../src/s2/s1angle.hs:e28r:
tIn file included from _../src/s2/s2point.ho:r27_:
aIn file included from s../src/s2/s2coder.hs:i23g:
nIn file included from _/usr/local/clang/include/absl/status/status.hh:i67n:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hi:m29p:
l/usr/local/clang/include/absl/strings/cord.h,: 934c:o31n:s twarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]&
, &  &934, | 
        |    ^ 
vo/usr/local/clang/include/absl/container/internal/btree_container.hi:d509 :s52e:t _note: dexpanded from macro 'ABSL_INTERNAL_X'a
ta(  c509o | n s t   c h a r *   aAbBsSlL__nIuNlTlEaRbNlAeL _dAaTtTaR,I BsUiTzEe__CtA PnT)U;R
E      D| _                              ^B
Y(/usr/local/clang/include/absl/base/nullability.ht:h257i:s23):) ,note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a\b
l      e|                                                     ^_
Nu/usr/local/clang/include/absl/container/internal/common.hl:l32a:b9l:e 
note:       macro 'ABSL_INTERNAL_IF_false' defined here| 
                      ^
   32 | #define ABSL_INTIn file included from Es2/s2closest_point_query.ccR:N18A:
LIn file included from _../src/s2/s2closest_point_query.hI:F26_:
fIn file included from a../src/s2/s1angle.hl:s28e:
(In file included from i../src/s2/s2point.hf:_27s:
aIn file included from t../src/s2/s2coder.hi:s23f:
iIn file included from e/usr/local/clang/include/absl/status/status.hd:,67 :
.In file included from ./usr/local/clang/include/absl/status/internal/status_internal.h.:)29 :
_/usr/local/clang/include/absl/strings/cord.h_:V935A:_11A:R Gwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
_
      |           ^935
 |     charIn file included from *s2/s2contains_vertex_query.cc :a18b:
sIn file included from l../src/s2/s2contains_vertex_query.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:
 /usr/local/clang/include/absl/container/internal/btree_container.hs:e568t:_3d:a twarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
siz  e568_ | t   nA)B;S L _/I/N TWErRiNtAeL _dXa(tian steor tt_hoer _raesssuilgtn
,       | i          ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241_ | h#idnetf_iinmep la,b sclo_nnsotn n&u,l l& &_,N
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                     ^52
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABIn file included from Ss2/s2closest_point_query.ccL:_18I:
NIn file included from T../src/s2/s2closest_point_query.h:E26R:
NIn file included from A../src/s2/s1angle.hL:_28A:
TIn file included from T../src/s2/s2point.hR:I27B:
UIn file included from T../src/s2/s2coder.hE:_23C:
AIn file included from P/usr/local/clang/include/absl/status/status.hT:U67R:
EIn file included from D/usr/local/clang/include/absl/status/internal/status_internal.h_:B29Y:
(/usr/local/clang/include/absl/strings/cord.ht:h937i:s35):) )warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       937  |          a b s l : : c o r d _ i\n
t      e| r                                                   ^n
al/usr/local/clang/include/absl/container/internal/common.h:::32C:o9r:d Rnote: emacro 'ABSL_INTERNAL_IF_false' defined herep
* a   b32s | l#_dneuflilnaeb lAeB StLr_eIeN(T)E RcNoAnLs_tI;F
_      f| a                                  ^l
se/usr/local/clang/include/absl/base/nullability.h(:i257f:_23s:a tnote: iexpanded from macro 'absl_nullable's
fi  e257d | ,# d.e.f.i)n e_ _aVbAs_lA_RnGuSl_l_a
b      l| e        ^ 
_Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2contains_vertex_query.ccl:l18
:
      In file included from | ../src/s2/s2contains_vertex_query.h                     ^:
21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2closest_point_query.cc
:18:
In file included from ../src/s2/s2closest_point_query.h  :57026 | :
 In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hI:N27T:
EIn file included from R../src/s2/s2coder.hN:A23L:
_In file included from X/usr/local/clang/include/absl/status/status.h(:i67n:
sIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hr:t29_:
o/usr/local/clang/include/absl/strings/cord.hr:_939a:s17s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 in  s939e | r t _ o rc_oansssti gcnh_ahri*n ta_bismlp_ln,o ncnounlslt  a&s,_ c&h&a,r
s      (| )  ^ 
co/usr/local/clang/include/absl/container/internal/btree_container.hn:s509t:;52
:       | note:                 ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:241  :50922 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nAnTuTlRlI B_UNToEn_nCuAlPlT
U      R| E                     ^D
_BY(this)),    In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from \../src/s2/s2coder.h
:      23| :
                                                   ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h32::299:
: /usr/local/clang/include/absl/strings/cord.h:note: 941macro 'ABSL_INTERNAL_IF_false' defined here:
35:    warning: 32 | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
def  i941n | e   A B SaLb_sIlN:T:EcRoNrAdL__iInFt_efranlasle:(:iCfo_rsdaRteips*f iaebds,l _.n.u.l)l a_b_lVeA _cAlReGaSr_(_)
;      
|               ^| 
                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2contains_vertex_query.cc
:18:
  In file included from 257../src/s2/s2contains_vertex_query.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:n67e:
 /usr/local/clang/include/absl/container/internal/btree_container.ha:b570s:l3_:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
able   570_ | N u lAlBaSbLl_eI
N      T| E                      ^R
NAL_X(insert_or_assign, insert_or_assign_hint_iIn file included from ms2/s2closest_point_query.ccp:l18,:
 In file included from c../src/s2/s2closest_point_query.ho:n26s:
tIn file included from  ../src/s2/s1angle.h&:,28 :
&In file included from &../src/s2/s2point.h,:
27      :
| In file included from   ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/status/status.h511::6752:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/strings/cord.h:950:  18511: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       950  |   A B S LC_oIrNdTREeRpNFAlLa_tA*T TaRbIsBlU_TnEo_nCnAuPlTlU RMEaDk_eBFYl(atthWiist)h)E)x t r a C a p a c i t y ( s i z e _ t   e x t r a\)
;      
|                                                          ^| 
                 ^
/usr/local/clang/include/absl/container/internal/common.h:31/usr/local/clang/include/absl/base/nullability.h::9241:: 22:note:  macro 'ABSL_INTERNAL_IF_true' defined here
note: expanded from macro 'absl_nonnull'
   31 |   #241d | e#fdienfei nAeB SaLb_sIlN_TnEoRnNnAuLl_lI F__Ntornuneu(lilf
_      s| a                     ^t
isfied, ...) if_satiIn file included from ss2/s2closest_point_query.ccf:i18e:
dIn file included from 
../src/s2/s2closest_point_query.h      :| 26        ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2contains_vertex_query.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2contains_vertex_query.h:
:21/usr/local/clang/include/absl/strings/cord.h:
:In file included from 957/usr/local/clang/include/absl/container/btree_map.h::2767::
 /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :570type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:3:   957 | warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
  voi  d570  | S e tATBrSeLe_(ICNoTrEdRRNeApL*_ Xa(bisnls_enrotn_nourl_la srseipg,n ,c oinnsste rCto_rodrz_UapsdsaitgenS_choipnet&_ ismcpolp,e )c;o
n      s| t                          ^ 
&,/usr/local/clang/include/absl/base/nullability.h :&241&:,22
:       | note:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'

    241571 |  | # d e f i n e   a b s l _ n o n n u lfla l_sNeo,n nturlule
,       | c                     ^o
nst_iterator(hint) ABSLIn file included from _s2/s2closest_point_query.ccI:N18T:
EIn file included from R../src/s2/s2closest_point_query.hN:A26L:
_In file included from C../src/s2/s1angle.hO:M28M:
AIn file included from )../src/s2/s2point.h;:
27      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/status.h::51167::
47In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/strings/cord.h
:961:34:   511 | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      961  |       A BvSoLi_dI NSTeEtRTNrAeLe_OArTETmRpItByU(TCEo_rCdARPeTpU*R EaDb_sBlY_(ntuhlilsa)b)l)e   r e p , 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257\ | 
#      d| e                                              ^~~~f
ine absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:/usr/local/clang/include/absl/container/internal/btree_container.h26::
572In file included from :../src/s2/s1angle.h3::28 :
In file included from warning: ../src/s2/s2point.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
27:
In file included from ../src/s2/s2coder.h:23  :
572In file included from  | /usr/local/clang/include/absl/status/status.h : 67A:
BIn file included from S/usr/local/clang/include/absl/status/internal/status_internal.hL:_29I:
N/usr/local/clang/include/absl/strings/cord.hT:E972R:N31A:L _warning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
inse  r972t | _ o r _ avsosiidg nE,m pilnasceerTtr_eoer(_CaosrsdiRgenp_*h ianbts_li_mnpoln,n ucloln srte p&,,  c&o&n,s
t       | I  ^n
li/usr/local/clang/include/absl/container/internal/btree_container.hn:e509D:a52t:a &note:  expanded from macro 'ABSL_INTERNAL_X'p
are  n509t | , 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iAnTeT RaIbBsUlT_En_oCnAnPuTlUlR E_DN_oBnYn(utlhli
s      )| )                     ^,
                        \
In file included from       s2/s2closest_point_query.cc| :                                                   ^18
:
In file included from ../src/s2/s2closest_point_query.h/usr/local/clang/include/absl/container/internal/common.h::2631:
:In file included from 9../src/s2/s1angle.h:: 28:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/s2point.h
:27:
In file included from    ../src/s2/s2coder.h31: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
L/usr/local/clang/include/absl/strings/cord.h_:I978N:T36E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_IF  _978t | r u e ( ivfo_isda tCiosmfmiietdT,r e.e.(.c)o nisft_ sCaotridsRfeipe*d 
a      b| s        ^l
_nullable old_In file included from rs2/s2contains_vertex_query.cce:p18,:

In file included from       ../src/s2/s2contains_vertex_query.h| :                                   ^21
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::67257:
:/usr/local/clang/include/absl/container/internal/btree_container.h23::572 :3note: :expanded from macro 'absl_nullable' 
warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]257
 | #def  i572n | e   aAbBsSlL__nIuNlTlEaRbNlAeL __XN(uilnlsaebrlte_
o      r| _                      ^a
ssign, inIn file included from ss2/s2closest_point_query.cce:r18t:
_In file included from o../src/s2/s2closest_point_query.hr:_26a:
sIn file included from s../src/s2/s1angle.hi:g28n:
_In file included from h../src/s2/s2point.hi:n27t:
_In file included from i../src/s2/s2coder.hm:p23l:
,In file included from  /usr/local/clang/include/absl/status/status.hc:o67n:
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h :&29,:
 /usr/local/clang/include/absl/strings/cord.h&:&979,:
30      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  573 |     979  |                               t r u e ,  CfoarldsRee,p *c oanbsstl__intoenrnautlolr (rheipn,t )c oAnBsStL _CIoNrTdEzRUNpAdLa_tCeOSMcMoAp)e;&
       s| c                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
pe,/usr/local/clang/include/absl/container/internal/btree_container.h
:      509| :                             ^47
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'241
:22:   note: 509expanded from macro 'absl_nonnull' | 
     241  |  # d e f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this)),     In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
\In file included from 
../src/s2/s2coder.h      :| 23                                              ^~~~:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::572982::339::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:511:  52982: |   note:  expanded from macro 'ABSL_INTERNAL_X' 
 vo  i511d |   A p p e n d T r e eATBoSILn_lIiNnTeEdR(NCAoLr_dARTeTpR*I BaUbTsEl__CnAoPnTnUuRlElD _tBrYe(et,h
i      s| )                                      ^)
) /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                                   ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l32l: 9_:N onote: nmacro 'ABSL_INTERNAL_IF_false' defined heren
ull   
32       | | #                     ^d
efine ABSL_INTERNIn file included from As2/s2closest_point_query.ccL:_18I:
FIn file included from _../src/s2/s2closest_point_query.hf:a26l:
sIn file included from e../src/s2/s1angle.h(:i28f:
_In file included from s../src/s2/s2point.ha:t27i:
sIn file included from f../src/s2/s2coder.hi:e23d:
,In file included from  /usr/local/clang/include/absl/status/status.h.:.67.:
)In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:_29V:
A/usr/local/clang/include/absl/strings/cord.h_:A984R:G36S:_ _warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
        ^
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MIn file included from es2/s2contains_vertex_query.cct:h18o:
dIn file included from I../src/s2/s2contains_vertex_query.hd:e21n:
tIn file included from i/usr/local/clang/include/absl/container/btree_map.hf:i67e:
r/usr/local/clang/include/absl/container/internal/btree_container.h :m574e:t3h:o dwarning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted];

      |                              ^
  574 | /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eXf(iinnes earbts_lo_rn_oansnsuilgln ,_ Nionnsneurltl_
o      r| _                     ^a
ssign_hint_impl,In file included from  s2/s2closest_point_query.ccc:o18n:
sIn file included from t../src/s2/s2closest_point_query.h :&26,:
 In file included from &../src/s2/s1angle.h&:,28
:
      In file included from | ../src/s2/s2point.h  ^:
27:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2coder.h::50923::
52In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
  /usr/local/clang/include/absl/strings/cord.h509: | 986 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     A986B | S L _ I NvToEidR NPArLe_pAeTnTdRTIrBeUeTTEo_ICnAlPiTnUeRdE(DC_oBrYd(Rtehpi*s )a)b,s l _ n o n n u l l   t r e e , 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241\:
22      :|                                                     ^
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/common.h:31  :2419 | :# dnote: emacro 'ABSL_INTERNAL_IF_true' defined heref
ine    31a | b#sdle_fnionnen uAlBlS L__NIoNnTnEuRlNlA
L      _| I                     ^F
_true(if_satisfiedIn file included from ,s2/s2closest_point_query.cc :.18.:
.In file included from )../src/s2/s2closest_point_query.h :i26f:
_In file included from s../src/s2/s1angle.ha:t28i:
sIn file included from f../src/s2/s2point.hi:e27d:

In file included from       ../src/s2/s2coder.h| :        ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: In file included from warning: s2/s2contains_vertex_query.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2contains_vertex_query.h:  21988:
 | In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
v/usr/local/clang/include/absl/container/internal/btree_container.ho:i574d: 3P:r ewarning: p'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
ndTre  e574T | o T rAeBeS(LC_oIrNdTREeRpN*A La_bXs(li_nnsoenrntu_lolr _tarsesei,g nM,e tihnosdeIrdte_notri_faisesri gmne_thhiondt)_;i
m      p| l                                    ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :& ,note:  expanded from macro 'absl_nonnull'&
&,  
241       | | #  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
efi  n575e |   a b s l _ n o n n u l l   _ N o n nturlule
,       | t                     ^r
ue, const_iteratoIn file included from rs2/s2closest_point_query.cc(:h18i:
nIn file included from t../src/s2/s2closest_point_query.h): 26A:
BIn file included from S../src/s2/s1angle.hL:_28I:
NIn file included from T../src/s2/s2point.hE:R27N:
AIn file included from L../src/s2/s2coder.h_:C23O:
MIn file included from M/usr/local/clang/include/absl/status/status.hA:)67;:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~29
:
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h989::50931::47 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    989509 |  |         v o i d   P rAeBpSeLn_dITNrTeEeR(NCAoLr_dARTeTpR*I BaUbTsEl__CnAoPnTnUuRlElD _tBrYe(et,h iMse)t)h,o d I d e n t i f i e r   m e t h o d ) ; 
        |                                ^\

      | /usr/local/clang/include/absl/base/nullability.h                                              ^~~~:
241:22: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h  :241574 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e/usr/local/clang/include/absl/container/internal/btree_container.h :a511b:s52l:_ nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l511  | _ N o n n u l l 
        | A                     ^B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2/s2closest_point_query.cc):)18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h :\67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                                                   ^:
29:
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/strings/cord.h::31994::930::  note: warning: macro 'ABSL_INTERNAL_IF_true' defined heretype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   31   | 994# | d e f i nveo iAdB SCLo_pIyNTToE(RsNtAdL:_:IsFt_rtirnuge*( iafb_ssla_tniosnfniueldl,  d.s.t.))  ciofn_ssta t{i
s      f| i                             ^e
d
/usr/local/clang/include/absl/base/nullability.h      :| 241        ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2contains_vertex_query.ccf:i18n:
eIn file included from  ../src/s2/s2contains_vertex_query.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l574l: 3_:N owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ull
        | 574                     ^ | 
  ABSL_INTERNAL_X(inIn file included from ss2/s2closest_point_query.cce:r18t:
_In file included from o../src/s2/s2closest_point_query.hr:_26a:
sIn file included from s../src/s2/s1angle.hi:g28n:
,In file included from  ../src/s2/s2point.hi:n27s:
eIn file included from r../src/s2/s2coder.ht:_23o:
rIn file included from _/usr/local/clang/include/absl/status/status.ha:s67s:
iIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.hn:_29h:
i/usr/local/clang/include/absl/strings/cord.hn:t999_:i28m:p lwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con  s999t |   & ,   &v&o,i
d       | C  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
pyT  o575A | r r a y ( c h a r *   a b s l _ n o ntnruulel,  dtsrtu)e ,c ocnosnts;t
_      i| t                           ^e
ra/usr/local/clang/include/absl/base/nullability.ht:o241r:(22h:i nnote: texpanded from macro 'absl_nonnull')
 A  B241S | L#_dIeNfTiEnReN AaLb_sClO_MnMoAn)n;u
l      l|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
Non/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l47
:       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  511 |           ABSL_INTERNAL_ATIn file included from Ts2/s2closest_point_query.ccR:I18B:
UIn file included from T../src/s2/s2closest_point_query.hE:_26C:
AIn file included from P../src/s2/s1angle.hT:U28R:
EIn file included from D../src/s2/s2point.h_:B27Y:
(In file included from t../src/s2/s2coder.hh:i23s:
)In file included from )/usr/local/clang/include/absl/status/status.h): 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1012 : 37 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1012  |   \ 
        | a                                              ^~~~b
sl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o577n:n3u:l lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
Nonn  u577l | l 
       A| B                     ^S
L_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAIn file included from Ls2/s2closest_point_query.cc_:A18T:
TIn file included from R../src/s2/s2closest_point_query.hI:B26U:
TIn file included from E../src/s2/s1angle.h_:C28A:
PIn file included from T../src/s2/s2point.hU:R27E:
DIn file included from _../src/s2/s2coder.hB:Y23(:
tIn file included from h/usr/local/clang/include/absl/status/status.hi:s67):
)In file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1049 : 56 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1049  |      s t a\t
i      c|                                                     ^b
oo/usr/local/clang/include/absl/container/internal/common.hl: 32G:e9t:F lnote: amacro 'ABSL_INTERNAL_IF_false' defined heret
Aux   (32a | b#sdle:f:icnoer dA_BiSnLt_eIrNnTaElR:N:ACLo_rIdFR_efpa*l saeb(silf__nsoantniuslfli erde,p ,.
.      .| )                                                       ^ 
__/usr/local/clang/include/absl/base/nullability.hV:A241_:A22R:G Snote: _expanded from macro 'absl_nonnull'_

      |           ^241
 | #defineIn file included from  s2/s2contains_vertex_query.cca:b18s:
lIn file included from _../src/s2/s2contains_vertex_query.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l67 :
_/usr/local/clang/include/absl/container/internal/btree_container.hN:o577n:n3u:l lwarning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|                      ^
  577 |   ABSL_IIn file included from Ns2/s2closest_point_query.ccT:E18R:
NIn file included from A../src/s2/s2closest_point_query.hL:_26X:
(In file included from i../src/s2/s1angle.hn:s28e:
rIn file included from t../src/s2/s2point.h_:o27r:
_In file included from a../src/s2/s2coder.hs:s23i:
gIn file included from n/usr/local/clang/include/absl/status/status.h,: 67i:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.he:r29t:
_/usr/local/clang/include/absl/strings/cord.ho:r1050_:a45s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
_hin t1050_ | i m p l ,   & & ,   c o n s t   & , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h :a511b:s52l:: :note: sexpanded from macro 'ABSL_INTERNAL_X't
rin  g511_ | v i e w *   a b s l _AnBoSnLn_uIlNlT EfRrNaAgLm_eAnTtT)R;I
B      U| T                                            ^E
_C/usr/local/clang/include/absl/base/nullability.hA:P241T:U22R:E Dnote: _expanded from macro 'absl_nonnull'B
Y(  t241h | i#sd)e)f)i n e   a b s l _ n o n n u l l   _ N o n n u l l\

            | |                      ^                                                   ^

/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSLIn file included from _s2/s2closest_point_query.ccI:N18T:
EIn file included from R../src/s2/s2closest_point_query.hN:A26L:
_In file included from I../src/s2/s1angle.hF:_28f:
aIn file included from l../src/s2/s2point.hs:e27(:
iIn file included from f../src/s2/s2coder.h_:s23a:
tIn file included from i/usr/local/clang/include/absl/status/status.hs:f67i:
eIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h,: 29.:
./usr/local/clang/include/absl/strings/cord.h.:)1054 :_37_:V Awarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
RGS _1054_ | 
        |          ^ 
  absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2contains_vertex_query.cc1061: | 18 :
 In file included from v../src/s2/s2contains_vertex_query.ho:i21d:
 In file included from C/usr/local/clang/include/absl/container/btree_map.ho:p67y:
T/usr/local/clang/include/absl/container/internal/btree_container.ho:A579r:r3a:y Swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
wPat  h579( | c h aArB*S La_bIsNlT_EnRoNnAnLu_lXl( idnsste)r tc_oonrs_ta;s
s      i| g                                 ^n
, /usr/local/clang/include/absl/base/nullability.hi:n241s:e22r:t _note: oexpanded from macro 'absl_nonnull'r
_a  s241s | i#gdne_fhiinnet _aibmspll_,n o&n&n,u lclo n_sNto n&n,u
l      l| 
  ^      
|                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INIn file included from Ts2/s2closest_point_query.ccE:R18N:
AIn file included from L../src/s2/s2closest_point_query.h_:I26F:
_In file included from f../src/s2/s1angle.ha:l28s:
eIn file included from (../src/s2/s2point.hi:f27_:
sIn file included from a../src/s2/s2coder.ht:i23s:
fIn file included from i/usr/local/clang/include/absl/status/status.he:d67,:
 In file included from ./usr/local/clang/include/absl/status/internal/status_internal.h.:.29):
 /usr/local/clang/include/absl/strings/cord.h_:_1078V:A33_:A Rwarning: Gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
__
       | 1078        ^ | 
  absl::cIn file included from os2/s2contains_vertex_query.ccr:d18_:
iIn file included from n../src/s2/s2contains_vertex_query.ht:e21r:
nIn file included from a/usr/local/clang/include/absl/container/btree_map.hl::67::
C/usr/local/clang/include/absl/container/internal/btree_container.ho:r579d:R3e:p *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl  _579n | o n nAuBlSlL _TIaNkTeERReNpA(L)_ Xc(oinnsste&r;t
_      o| r                                ^_
as/usr/local/clang/include/absl/base/nullability.hs:i241g:n22,:  inote: nexpanded from macro 'absl_nonnull's
er  t241_ | o#rd_eafsisnieg na_bhsiln_tn_oinmnpull,l  &_&N,o ncnounlslt
       &| ,                     ^

      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |      In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from A../src/s2/s2closest_point_query.hB:S26L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
AIn file included from T../src/s2/s2coder.hT:R23I:
BIn file included from U/usr/local/clang/include/absl/status/status.hT:E67_:
CIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hP:T29U:
R/usr/local/clang/include/absl/strings/cord.hE:D1079_:B33Y:( twarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
s)) )1079  |      a b s l : : c o r d _ i n t e r n a l : :\C
o      r| d                                                   ^R
ep/usr/local/clang/include/absl/container/internal/common.h*: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l |  #TdaekfeiRneep (A)B S&L&_;I
N      T| E                                ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241I:F22_:t rnote: uexpanded from macro 'absl_nonnull'e
(i  f241_ | s#adteifsifniee da,b s.l._.n)o ninfu_lsla t_iNsofnineudl
l      
|               ^| 
                     ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 | In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27f:
aIn file included from l../src/s2/s2coder.hs:e23,:
 In file included from t/usr/local/clang/include/absl/status/status.hr:u67e:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
s/usr/local/clang/include/absl/strings/cord.ht:_1116i:t37e:r awarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
r(hi n1116t | )   AcBoSnLs_tI NcTrEcR_NiAnLt_eCrOnMaMlA:):;C
r      c| C                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
rdS/usr/local/clang/include/absl/container/internal/btree_container.ht:a511t:e47*:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  u511l | l a b l e   M a y b eAGBeStLC_rIcNCToErRdNSAtLa_tAeT(T)R IcBoUnTsEt_;C
A      P| T                                    ^U
RE/usr/local/clang/include/absl/base/nullability.hD:_257B:Y23(:t hnote: iexpanded from macro 'absl_nullable's
))  )257  |  # d e f i n e   a b s l _ n u l l a b l e   _\N
u      l| l                                              ^~~~a
ble
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      | In file included from                                                    ^s2/s2closest_point_query.cc
:18:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2closest_point_query.h32::269:
:In file included from  ../src/s2/s1angle.h:note: 28macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from ../src/s2/s2point.h:27   :
32In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
AIn file included from B/usr/local/clang/include/absl/status/internal/status_internal.hS:L29_:
I/usr/local/clang/include/absl/strings/cord.hN:T1140E:R49N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
F_fa l1140s | e ( i f _ s a t i s f i e d ,   . . . )   _ _ V A _ A R G S _ _C
o      r| d        ^R
epExternaIn file included from ls2/s2contains_vertex_query.cc*: 18a:
bIn file included from s../src/s2/s2contains_vertex_query.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h :r588e:p3):; 
warning:       passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                                                ^
  588/usr/local/clang/include/absl/base/nullability.h | : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fXi(nien saebrstl__onro_nansuslilg n_,N oinnnsuelrlt
_      o| r                     ^_
assign_hint_impl, &&, &&, fIn file included from as2/s2closest_point_query.ccl:s18e:
,In file included from 
../src/s2/s2closest_point_query.h      :| 26  ^:

In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/container/internal/btree_container.h28::
511In file included from :../src/s2/s2point.h52::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'ABSL_INTERNAL_X':
23:
In file included from /usr/local/clang/include/absl/status/status.h:  67511:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1146 : 10 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IN T1146E | RCNoArLd_RAeTpT*R IaBbUsTlE__nCoAnPnTuUlRlE DN_eBwYE(xttheirsn)a)l)R e p ( a b s l : : s t r i n g _ v i e w   d a t\a
,      
|                                                          ^| 
         ^
/usr/local/clang/include/absl/container/internal/common.h:31/usr/local/clang/include/absl/base/nullability.h::9241:: 22:note:  macro 'ABSL_INTERNAL_IF_true' defined here
note: expanded from macro 'absl_nonnull'
   31 |   #241d | e#fdienfei nAeB SaLb_sIlN_TnEoRnNnAuLl_lI F__Ntornuneu(lilf
_      s| a                     ^t
isfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_In file included from is2/s2closest_point_query.ccm:p18l:
,In file included from  ../src/s2/s2closest_point_query.h&:&26,:
 In file included from &../src/s2/s1angle.h&:,28 :
fIn file included from a../src/s2/s2point.hl:s27e:
,In file included from 
../src/s2/s2coder.h      :| 23  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/status/status.h:67  :
589In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1159 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1159  | tirnulei,n ec oCnosrtd_Rietpe*r aatbosrl(_hnionntn)u lAlB SNLe_wIENxTtEeRrNnAaLl_RCeOpM(M
A      )| ;                ^

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/base/nullability.h
:241:22:/usr/local/clang/include/absl/container/internal/btree_container.h :511note: :expanded from macro 'absl_nonnull'47
:   note: 241expanded from macro 'ABSL_INTERNAL_X' | 
#de  f511i | n e   a b s l _ n o nAnBuSlLl_ I_NNToEnRnNuAlLl_
A      T| T                     ^R
IBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 590/usr/local/clang/include/absl/status/internal/status_internal.h::329::
 /usr/local/clang/include/absl/strings/cord.hwarning: :1183passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
47: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]590
 |   A B1183S | L _ I N T E R N A L _ X ( i n s e r t _ o r _ a s s i g n ,   i n s e r t _Coorr_daRsespi*g na_bhsiln_tn_uilmlpalb,l e& &,r e&p&),
       t| r                                              ^u
e,
/usr/local/clang/include/absl/base/nullability.h      :| 257  ^:
23: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nullable'509
:52:   257 | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n509e |   a b s l _ n u l l aAbBlSeL __INNuTlElRaNbAlLe_
A      T| T                      ^R
IBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2/s2closest_point_query.cc511: | 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:A67T:
TIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hI:B29U:
T/usr/local/clang/include/absl/strings/cord.hE:_1222C:A52P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_BY (th1222i | si)n)l)i n e   v o i d   C o r d : : I  n l i n e R e p\:
:      S| w                                                   ^a
p(/usr/local/clang/include/absl/container/internal/common.hC:o32r:d9::: Inote: nmacro 'ABSL_INTERNAL_IF_false' defined herel
ine   R32e | p#*d eafbisnle_ nAoBnSnLu_lIlN TrEhRsN)A L{_
I      F| _                                                   ^f
als/usr/local/clang/include/absl/base/nullability.he:(241i:f22_:s anote: texpanded from macro 'absl_nonnull'i
sf  i241e | d#,d e.f.i.n)e  _a_bVsAl__AnRoGnSn_u_l
l       | _        ^N
onnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2contains_vertex_query.cc23::18 :
In file included from note: ../src/s2/s2contains_vertex_query.hexpanded from macro 'absl_nullable':
21:
In file included from   /usr/local/clang/include/absl/container/btree_map.h257: | 67#:
d/usr/local/clang/include/absl/container/internal/btree_container.he:f592i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l592l | a b lAeB S_LN_uIlNlTaEbRlNeA
L      _| X                      ^(
insert_or_assign, insert_or_assign_hint_impl, &&, &&, truIn file included from es2/s2closest_point_query.cc,:
18      :
| In file included from   ^../src/s2/s2closest_point_query.h
:26:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s1angle.h509::2852:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2coder.h:23:
  In file included from 509/usr/local/clang/include/absl/status/status.h | : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1234A:B20S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN A1234L | _iAnTlTiRnIeB UcToEn_sCtA PcThUaRrE*D _aBbYs(lt_hniosn)n)u,l l   C o r d : : I n l i n e R e p : : a s _ c h\a
r      s| (                                                   ^)
 co/usr/local/clang/include/absl/container/internal/common.hn:s31t: 9{:
       | note:                    ^macro 'ABSL_INTERNAL_IF_true' defined here

/usr/local/clang/include/absl/base/nullability.h:   24131: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241A | B#SdLe_fIiNnTeE RaNbAsLl__InFo_ntnruulel( i_fN_osnantuilslf
i      e| d                     ^,
 ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2closest_point_query.cc592: | 18 :
 In file included from A../src/s2/s2closest_point_query.hB:S26L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
XIn file included from (../src/s2/s2coder.hi:n23s:
eIn file included from r/usr/local/clang/include/absl/status/status.ht:_67o:
rIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ha:s29s:
i/usr/local/clang/include/absl/strings/cord.hg:n1239,: 38i:n swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
t_or _1239a | sisnilginn_eh ianbts_li:m:pclo,r d&_&i,n t&e&r,n atlr:u:eC,o
r      d| R  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
p*   a593b | s l _ n o n n u l l   C o r d : : I ntlriunee,R ecpo:n:sats__ittreerea(t)o
r      (| h                                     ^i
nt/usr/local/clang/include/absl/base/nullability.h): 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eCfOiMnMeA )a;b
s      l| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
onn/usr/local/clang/include/absl/container/internal/btree_container.hu:l509l: 47_:N onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull  
509       | |                       ^ 
        ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),      In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27\:

In file included from       ../src/s2/s2coder.h| :                                              ^~~~23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/btree_container.h:
:592/usr/local/clang/include/absl/strings/cord.h::31245:: 38:warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52:  1245 | note: iexpanded from macro 'ABSL_INTERNAL_X'n
lin  e511  | a b s l : : c o r d _AiBnStLe_rInNaTlE:R:NCAoLr_dARTeTpR*I BaUbTsEl__CnAuPlTlUaRbElDe_ BCYo(rtdh:i:sI)n)l)i n e R e p : : t r e e ( ) 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23\:
       | note:                                                    ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/container/internal/common.h  :25731 | :#9d:e fnote: imacro 'ABSL_INTERNAL_IF_true' defined heren
e a   b31s | l#_dneuflilnaeb lAeB S_LN_uIlNlTaEbRlNeA
L      _| I                      ^F
_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(In file included from is2/s2closest_point_query.ccn:s18e:
rIn file included from t../src/s2/s2closest_point_query.h_:o26r:
_In file included from a../src/s2/s1angle.hs:s28i:
gIn file included from n../src/s2/s2point.h,: 27i:
nIn file included from s../src/s2/s2coder.he:r23t:
_In file included from o/usr/local/clang/include/absl/status/status.hr:_67a:
sIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hi:g29n:
_/usr/local/clang/include/absl/strings/cord.hh:i1258n:t36_:i mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, & &1258, |  i&n&l,i nter uceo,r
d      _| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ter  n593a | l : : C o r d R e p F l a t *   a b stlr_uneo,n ncuolnls
t      _| i                                   ^t
er/usr/local/clang/include/absl/base/nullability.ha:t241o:r22(:h inote: nexpanded from macro 'absl_nonnull't
)   A241B | S#Ld_eIfNiTnEeR NaAbLs_lC_OnMoMnAn)u;l
l       | _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
onn/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:
47      :|                       ^note: 
expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::Inli/usr/local/clang/include/absl/container/internal/btree_container.hn:e618R:e64p:: :warning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]m
plac  e618T | r e eA(BCSoLr_dIRNeTpE*R NaAbLs_lX_(ntornyn_uelmlp lraecpe,,
       t| r                                                  ^y
_em/usr/local/clang/include/absl/base/nullability.hp:l241a:c22e:_ inote: mexpanded from macro 'absl_nonnull'p
l,   241c | o#ndsetf i&n,e  faablssle_)n;o
n      n| u                                                               ^l
l /usr/local/clang/include/absl/container/internal/btree_container.h_:N596o:n9n:u lnote: lmacro 'ABSL_INTERNAL_X' defined here

      |                      ^
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f618i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_n  o618n | n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           AIn file included from Bs2/s2closest_point_query.ccS:L18_:
IIn file included from N../src/s2/s2closest_point_query.hT:E26R:
NIn file included from A../src/s2/s1angle.hL:_28A:
TIn file included from T../src/s2/s2point.hR:I27B:
UIn file included from T../src/s2/s2coder.hE:_23C:
AIn file included from P/usr/local/clang/include/absl/status/status.hT:U67R:
EIn file included from D/usr/local/clang/include/absl/status/internal/status_internal.h_:B29Y:
(/usr/local/clang/include/absl/strings/cord.ht:h1282i:s47):) ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1282  |  i n l i n e   v o i d   C o r d : :\I
n      l| i                                                   ^n
eR/usr/local/clang/include/absl/container/internal/common.he:p32:::9S:e tnote: Tmacro 'ABSL_INTERNAL_IF_false' defined herer
ee(   C32o | r#ddReefpi*n ea bAsBlS_Ln_oInNnTuElRlN ArLe_pI,F
_      f| a                                              ^l
se/usr/local/clang/include/absl/base/nullability.h(:i241f:_22s:a tnote: iexpanded from macro 'absl_nonnull's
fi  e241d | ,# d.e.f.i)n e_ _aVbAs_lA_RnGoSn_n_u
l      l|          ^_
Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2closest_point_query.cc619: | 18 :
 In file included from A../src/s2/s2closest_point_query.hB:S26L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
XIn file included from (../src/s2/s2coder.ht:r23y:
_In file included from e/usr/local/clang/include/absl/status/status.hm:p67l:
aIn file included from c/usr/local/clang/include/absl/status/internal/status_internal.he:,29 :
t/usr/local/clang/include/absl/strings/cord.hr:y1290_:e54m:p lwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
e_im p1290l | ,i ncloinnset  v&o,i dt rCuoer)d;:
:      I| n                                                              ^l
in/usr/local/clang/include/absl/container/internal/btree_container.he:R596e:p9::: Snote: emacro 'ABSL_INTERNAL_X' defined heret
Tre  e596O | r#Edmepftiyn(eC oArBdSRLe_pI*N TaEbRsNlA_Ln_uXl(lFaubnlce,  rCeapl,l
e      e| ,                                                     ^ 
KQ/usr/local/clang/include/absl/base/nullability.hu:a257l:,23 :K Vnote: aexpanded from macro 'absl_nullable'l
ue  ,257  | .#.d.e)f i n e   a b s l _ n u l l a b l e   _ N u l\l
a      b| l        ^e

      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s1angle.h619::283:
:In file included from  ../src/s2/s2point.h:warning: 27passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2coder.h:23:
  In file included from 619/usr/local/clang/include/absl/status/status.h | : 67 :
AIn file included from B/usr/local/clang/include/absl/status/internal/status_internal.hS:L29_:
I/usr/local/clang/include/absl/strings/cord.hN:T1301E:R56N:A Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]X
(try _1301e | mipnllaicnee,  vtoriyd_ eCmoprlda:c:eI_nilmipnle,R ecpo:n:sCto m&m,i ttTrrueee)(;c
o      n| s  ^t
 C/usr/local/clang/include/absl/container/internal/btree_container.ho:r611d:R52e:p *note:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _611n | u l l a b l e   o l dA_BrSeLp_,I
N      T| E                                                       ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_257A:T23T:R Inote: Bexpanded from macro 'absl_nullable'U
TE  _257C | A#PdTeUfRiEnDe_ BaYb(stlh_insu)l)l,a b l e   _ N u l l a b l e 
        |                        ^ 
        \
      | In file included from                                                    ^s2/s2closest_point_query.cc
:18:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/s2closest_point_query.h::3126::
9In file included from :../src/s2/s1angle.h :28note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
../src/s2/s2point.h:27:
   In file included from 31../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from A/usr/local/clang/include/absl/status/internal/status_internal.hB:S29L:
_/usr/local/clang/include/absl/strings/cord.hI:N1302T:E50R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
IF_ t1302r | u e ( i f _ s a t i s f i e d ,   . . . )   i f _ s a t i s f i e d 
        |          ^ 
  CordRep* absl_In file included from ns2/s2contains_vertex_query.cco:n18n:
uIn file included from l../src/s2/s2contains_vertex_query.hl: 21r:
eIn file included from p/usr/local/clang/include/absl/container/btree_map.h,:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                                                 ^:
619:3/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'absl_nonnull'
    619241 |  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nXn(utlrly __eNmopnlnauclel,
       t| r                     ^y
_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNALIn file included from _s2/s2closest_point_query.ccA:T18T:
RIn file included from I../src/s2/s2closest_point_query.hB:U26T:
EIn file included from _../src/s2/s1angle.hC:A28P:
TIn file included from U../src/s2/s2point.hR:E27D:
_In file included from B../src/s2/s2coder.hY:(23t:
hIn file included from i/usr/local/clang/include/absl/status/status.hs:)67):
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1312 : 38 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1312  |  i n l i n e\ 
a      b| s                                              ^~~~l
::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_620n:u59l:l awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
e _  N620u | l l aAbBlSeL
_      I| N                      ^T
ERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, In file included from KVs2/s2closest_point_query.cca:18l:
uIn file included from e../src/s2/s2closest_point_query.h,: 26.:
.In file included from .../src/s2/s1angle.h): 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
\/usr/local/clang/include/absl/strings/cord.h
:      1321| :        ^48
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n620u:l3l:  _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nnu  l620l | 
        | A                     ^B
SL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 611s2/s2closest_cell_query.cc::4718::
 In file included from ../src/s2/s2closest_cell_query.hnote: :expanded from macro 'ABSL_INTERNAL_X'26
:
In file included from ../src/s2/s1angle.h:28  :
611In file included from  | ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.hA:B67S:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hI:N29T:
EIn file included from R/usr/local/clang/include/absl/strings/cord.hN:A94L:
_In file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hT:T31R:
IB/usr/local/clang/include/absl/synchronization/mutex.hU:T489E:_14C:A Pwarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]U
RED_B  Y489( | t h i s ) ) ,v o i d   ( * a b s l _ n u l l a b l e   i n v a r i\a
n      t| )                                              ^~~~(
void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nul/usr/local/clang/include/absl/container/internal/btree_container.hl:a622b:i3l:i twarning: ypassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
unkn  o622w | n   _ANBuSlLl__IuNnTsEpReNcAiLf_iXe(dt
r      y| _                                 ^e
mplace, try_empIn file included from ls2/s2closest_cell_query.cca:c18e:
_In file included from h../src/s2/s2closest_cell_query.hi:n26t:
_In file included from i../src/s2/s1angle.hm:p28l:
,In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :&23,:
 In file included from f/usr/local/clang/include/absl/status/status.ha:l67s:
eIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
  ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 611/usr/local/clang/include/absl/strings/internal/cordz_info.h::5231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'ABSL_INTERNAL_X'490
:13:   warning: 611type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
      490  |           A BvSoLi_dI*N TaEbRsNlA_Ln_uAlTlTaRbIiBlUiTtEy__CuAnPkTnUoRwEnD _aBrYg()t;h
i      s| )            ^)
, /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
      289  |  # d e f i n e   a b s\l
_      n| u                                                   ^l
la/usr/local/clang/include/absl/container/internal/common.hb:i32l:i9t:y _note: umacro 'ABSL_INTERNAL_IF_false' defined heren
kno   w32n |  #_dNeufliln_eu nAsBpSeLc_iIfNiTeEdR
N      A| L                                 ^_
IF_false(if_satisfIn file included from is2/s2closest_cell_query.cce:d18,:
 In file included from .../src/s2/s2closest_cell_query.h.:.26):
 In file included from _../src/s2/s1angle.h_:V28A:
_In file included from A../src/s2/s2point.hR:G27S:
_In file included from _../src/s2/s2coder.h
:      23| :
        ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:21In file included from :
s2/s2closest_cell_query.ccIn file included from :/usr/local/clang/include/absl/container/btree_map.h18::
67In file included from :
../src/s2/s2closest_cell_query.h:/usr/local/clang/include/absl/container/internal/btree_container.h26::
624In file included from :../src/s2/s1angle.h3::28 :
In file included from warning: ../src/s2/s2point.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]27
:
In file included from ../src/s2/s2coder.h:23  :
624In file included from  | /usr/local/clang/include/absl/status/status.h : 67A:
BIn file included from S/usr/local/clang/include/absl/status/internal/status_internal.hL:_29I:
NIn file included from T/usr/local/clang/include/absl/strings/cord.hE:R94N:
AIn file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:X31(:
t/usr/local/clang/include/absl/synchronization/mutex.hr:y549_:e40m:p lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
e, t  r549y | _ e msptlaatciec_ hvionitd_ iImnpclr,e mceonntsSty n&c,h Stermu(eM,u
t      e| x  ^*
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s611l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   m611u | , 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| ,                     ^ 
             In file included from  s2/s2closest_cell_query.cc : 18 :
 In file included from  ../src/s2/s2closest_cell_query.h : 26 :
 In file included from  ../src/s2/s1angle.h :\28
:
      In file included from | ../src/s2/s2point.h                                                   ^:
27:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/s2coder.h::3123::
9In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
   In file included from 31/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.hA:B550S:L64_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL  _550I | F _ t r u e ( i f _ s a t i s f i e d ,   . . . )   i f _ s a t ibsafsiee_di
n      t| e        ^r
nal::PerThreadIn file included from Ss2/s2contains_vertex_query.ccy:n18c:
hIn file included from *../src/s2/s2contains_vertex_query.h :a21b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u624l:l3 :w )warning: ;'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                                                                ^
  /usr/local/clang/include/absl/base/nullability.h624: | 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(et rayb_selm_pnloancneu,l lt r_yN_oenmnpullalc
e      _| h                     ^i
nt_impl, const &, true,In file included from 
s2/s2closest_cell_query.cc      :| 18  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2closest_cell_query.h:26  :
625In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:s29t:
_In file included from i/usr/local/clang/include/absl/strings/cord.ht:e94r:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31(:
h/usr/local/clang/include/absl/synchronization/mutex.hi:n551t:)40 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IN  T551E | R N AsLt_aCtOiMcM Ab)o;o
l       | D                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
cre/usr/local/clang/include/absl/container/internal/btree_container.hm:e611n:t47S:y nnote: cexpanded from macro 'ABSL_INTERNAL_X'h
Sem(  M611u | t e x *   a b s l _ nAoBnSnLu_lIlN TmEuR,N
A      L| _                                       ^A
TT/usr/local/clang/include/absl/base/nullability.hR:I241B:U22T:E _note: Cexpanded from macro 'absl_nonnull'A
PT  U241R | E#Dd_eBfYi(nteh iasb)s)l,_ n o n n u l l   _ N o n n u l l 
        |                       ^ 
     \
      |                                               ^~~~
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/container/internal/btree_container.h67::
626In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h3::29 :
In file included from warning: /usr/local/clang/include/absl/strings/cord.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
626 | /usr/local/clang/include/absl/synchronization/mutex.h : 556A:B38S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN  A556L | _ X (vtoriyd_ eLmopclkaScleo,w Ltoroyp_(eSmypnlcahcWea_ihtiPnatr_aimmsp*l ,a b&s&l,_ nfoanlnsuel,l
       w| a  ^i
tp/usr/local/clang/include/absl/container/internal/btree_container.h,: 611i:n52t:  fnote: lexpanded from macro 'ABSL_INTERNAL_X'a
gs)  ;611
 |        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nAeT TaRbIsBlU_TnEo_nCnAuPlTlU R_ENDo_nBnYu(ltlh
i      s| )                     ^)
,                        In file included from  s2/s2closest_cell_query.cc :\18
:
      In file included from | ../src/s2/s2closest_cell_query.h                                                   ^:
26:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/s1angle.h::3228::
9In file included from :../src/s2/s2point.h :27note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
../src/s2/s2coder.h:23:
   In file included from 32/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A558L:_35I:F _warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
lse  (558i | f _ sbaotoils fLioecdk,S l.o.w.W)i t_h_DVeAa_dAlRiGnSe_(_M
u      H| o        ^w
 absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullIn file included from as2/s2contains_vertex_query.ccb:l18e:
 In file included from c../src/s2/s2contains_vertex_query.ho:n21d:
,In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                                             ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/base/nullability.h628::2573::23 : warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nullable'

  257   | 628# | d e fAiBnSeL _aIbNsTlE_RnNuAlLl_aXb(lter y__Neumlpllaabclee,
       t| r                      ^y
_emplace_hint_impl, &&, tIn file included from rs2/s2closest_cell_query.ccu:e18,:

In file included from       ../src/s2/s2closest_cell_query.h| :  ^26
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/btree_container.h::28611:
:In file included from 52../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :61167 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T562E:R23N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
TTRI  B562U | T E _vCoAiPdT ULRoEcDk_SBlYo(wt(hMiusH)o)w,  a b s l _ n o n n u l l   In file included from h s2/s2closest_point_query.cc o: w 18, :
  In file included from c o../src/s2/s2closest_point_query.h n: s 26t :
  In file included from C\../src/s2/s1angle.ho
:n      28d| :
i                                                   ^In file included from t
i../src/s2/s2point.ho:/usr/local/clang/include/absl/container/internal/common.hn27:*:
31 In file included from :a../src/s2/s2coder.hb9:s:23l :
_In file included from note: n/usr/local/clang/include/absl/status/status.hmacro 'ABSL_INTERNAL_IF_true' defined hereu:
l67l:
a   In file included from b31/usr/local/clang/include/absl/status/internal/status_internal.hl | :e# 29dc:
oenf/usr/local/clang/include/absl/strings/cord.hdi:,n1505
e:       41A| :B                      ^ S
warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_/usr/local/clang/include/absl/base/nullability.hI
N:T241E:R22 N:1505A L | note: _iexpanded from macro 'absl_nonnull'In
lFi  n_241te | r #uvdeoe(ifidif n_Ceso aratdbi:ss:lfCi_eonpdoy,n T.n.o.uA)lr lri fa__ysNIaotminspnlfu(ilcelhd
a
      r      | *|                      ^        ^ 

absl_nonnIn file included from us2/s2closest_cell_query.ccl:l18 :
dIn file included from s../src/s2/s2closest_cell_query.ht:)26In file included from  :
s2/s2contains_vertex_query.cccIn file included from :o../src/s2/s1angle.h18n::
s28tIn file included from :
 ../src/s2/s2contains_vertex_query.hIn file included from {:../src/s2/s2point.h
21:      :
27| In file included from :
                                        ^/usr/local/clang/include/absl/container/btree_map.hIn file included from 
:../src/s2/s2coder.h67::
23/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h:
::In file included from 241628/usr/local/clang/include/absl/status/status.h:::22367:::
  In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hwarning: expanded from macro 'absl_nonnull':'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
29
:
In file included from   /usr/local/clang/include/absl/strings/cord.h241: | 94  #:
628dIn file included from e | /usr/local/clang/include/absl/strings/internal/cordz_info.hf : i31nA:
eB/usr/local/clang/include/absl/synchronization/mutex.hS :La_562IbN:Ts58El:R_ nNwarning: Aotype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Ln_
nXu(lt  lr562 y | __ eN movpnonliaudcl elL,
o       ct| rky                     ^S_
elmopwl(aMcueH_ohwi natb_silm_pnlo,n n&u&l,l  throuwe,, 
c      o| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
t C  o629n | d i t i o n *   a b s l _ n u l l a bcloen scto_niIn file included from dts2/s2closest_point_query.cc,e:
r18a      t:
o| rIn file included from                                                          ^(../src/s2/s2closest_point_query.hh
i:n/usr/local/clang/include/absl/base/nullability.h26t::
)257 In file included from :A../src/s2/s1angle.hB23S::L28 _:
note: IIn file included from expanded from macro 'absl_nullable'N../src/s2/s2point.h
T:E27R  N:
A257In file included from L | _../src/s2/s2coder.h#C:Od23MeM:
fAIn file included from i)n/usr/local/clang/include/absl/status/status.h;e
:       67a| :
b                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from s
/usr/local/clang/include/absl/status/internal/status_internal.hl:_29/usr/local/clang/include/absl/container/internal/btree_container.hn:
:u611/usr/local/clang/include/absl/strings/cord.hl::l471514a::b 29lnote: :eexpanded from macro 'ABSL_INTERNAL_X'  
warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
u  l611l | a b 1514l  |  e  
           |                         ^ c 
oArBdS_Li_nItNeTrEnRaNlA:L:_CAoTrTdRRIeBIn file included from pUs2/s2closest_cell_query.cc*T: E18_aC:
AbPIn file included from sT../src/s2/s2closest_cell_query.hlU:R_E26nD:
_oIn file included from BnY../src/s2/s1angle.hn(:tu28lh:
ilIn file included from s )../src/s2/s2point.ht):r,27e :
 e In file included from ) ../src/s2/s2coder.h  : { 23
 :
       In file included from  | /usr/local/clang/include/absl/status/status.h                             ^ : 
67 :
 In file included from  /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h :: 24129 ::
 22 In file included from  :/usr/local/clang/include/absl/strings/cord.h   :note:  94expanded from macro 'absl_nonnull' :

\In file included from 
  /usr/local/clang/include/absl/strings/internal/cordz_info.h      241:|  | 31                                              ^~~~#:

d/usr/local/clang/include/absl/synchronization/mutex.he:f565i:n36e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_no  n565n | u l lv o_iNdo nUnnullolc
k      S| l                     ^o
w(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   v/usr/local/clang/include/absl/container/internal/btree_container.ho:i638d: 63T:r ywarning: R'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
move(  b638a | s e _ i n t ecronnaslt: :kPeeyr_Tahrrge<aKdIn file included from >Ss2/s2closest_point_query.cc y:&n18kc :
hAIn file included from *B../src/s2/s2closest_point_query.h S:aL26b_:
sIIn file included from lN../src/s2/s1angle.hT_:En28oR:
nNIn file included from nA../src/s2/s2point.huL:l_27lA:
 TIn file included from Ts../src/s2/s2coder.hR):I;B23
U:
      TIn file included from | E/usr/local/clang/include/absl/status/status.h_                                                ^:C
A67P:
/usr/local/clang/include/absl/base/nullability.hTIn file included from :U/usr/local/clang/include/absl/status/internal/status_internal.h241R::E2922D:
:_/usr/local/clang/include/absl/strings/cord.hB Y:note: (1525expanded from macro 'absl_nonnull't:
h29i:s   )241warning: ) | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
#
      d| e                                                              ^~~~f
 i1525n | e   a b sclo_rndo_ninnutlelr n_aNlo:n:nCuolrld
R      e| p                     ^*
 absl_nonnull tree)In file included from  s2/s2closest_cell_query.cc{:
18      :
| In file included from                             ^../src/s2/s2closest_cell_query.h
:26:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 578_:N45o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^578
 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin/usr/local/clang/include/absl/container/internal/btree_container.he: 648a:b7s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nnul  l648  | _ N o nIn file included from  ns2/s2closest_point_query.cc u :lt18lh:

iIn file included from s      ../src/s2/s2closest_point_query.h)| :)                     ^26 
A:
BIn file included from S../src/s2/s1angle.hL:_28A:
TIn file included from T../src/s2/s2point.hR:I27B:
UIn file included from T../src/s2/s2coder.hE:_23L:
IIn file included from In file included from Fs2/s2closest_cell_query.cc/usr/local/clang/include/absl/status/status.hE::T1867I:
:
MIn file included from EIn file included from _../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/status/internal/status_internal.hB::O26U29N:
:
DIn file included from  /usr/local/clang/include/absl/strings/cord.h../src/s2/s1angle.h{::
153028      ::
| 55      ^~~~In file included from :
../src/s2/s2point.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h :153067 | :
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hl:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.hC:o94r:
dIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h::C31h:
u/usr/local/clang/include/absl/synchronization/mutex.hn:k580I:t34e:r awarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
r::  C580h | u n kbIatseer_aitnotre(rcnoanls:t: PCeorrTdh*r eaabdsSly_nncohn*n ualbls lc_onrudl)l a{b
l      e|                                                        ^W
ak/usr/local/clang/include/absl/base/nullability.he:u241p:(22
:       | note:                                  ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
l      e|                       ^_
Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2coords.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2coords.h::23105:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/logging.h::6722:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/log.h::29209:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/log_impl.h::9420:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h::3163:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/vlog_config.h::62449::6837::  warning: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   49   | 624i | n t  eRxepgliiscitt MutexeLroAcnkd(IMnuitteixa&l imzue (AVBLSoLg_SIiNtTeE*R NaAbLs_lA_TnToRnInBuUlTlE _vC)A;P
T      U| R                                    ^E
D_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull'

      |                                                                    ^~~~  
241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MuteIn file included from xs2/s2coords.ccL:o18c:
kIn file included from (../src/s2/s2coords.hM:u105t:
eIn file included from x../src/s2/base/logging.h*: 22a:
bIn file included from s/usr/local/clang/include/absl/log/log.hl:_209n:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hn:u20l:
lIn file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.hm:u63):
 /usr/local/clang/include/absl/log/internal/vlog_config.hA:B63S:L43_:E Xwarning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
USI   V63E | _ L OeCxKp_lFiUcNiCtT IcOoNn(smtue)x
p      r|                              ^V
Log/usr/local/clang/include/absl/base/nullability.hS:i241t:e22(:c onote: nexpanded from macro 'absl_nonnull's
t   c241h | a#rd*e faibnsel _anbosnln_unloln nfu)l
l       | _                                          ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnullIn file included from  s2/s2closest_point_query.cc_:N18o:
nIn file included from n../src/s2/s2closest_point_query.hu:l26l:

In file included from       ../src/s2/s1angle.h| :                     ^28In file included from 
:
s2/s2closest_cell_query.ccIn file included from :../src/s2/s2point.h18::
27In file included from :
../src/s2/s2closest_cell_query.hIn file included from :../src/s2/s2coder.h26::
23In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/status/status.h28::
67In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h27::
29In file included from :
../src/s2/s2coder.h:/usr/local/clang/include/absl/strings/cord.h23::
1666In file included from :/usr/local/clang/include/absl/status/status.h48::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
 In file included from 1666/usr/local/clang/include/absl/strings/internal/cordz_info.h | :i31n:
l/usr/local/clang/include/absl/synchronization/mutex.hi:n641e: 68C:o rwarning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
Cord:  :641A | d v aenxcpelAincdiRte In file included from aMs2/s2coords.ccdu:(t18Ce:
hxIn file included from aL../src/s2/s2coords.hro:Ic105tke:
(rIn file included from Ma../src/s2/base/logging.hut:to22erx:
*&In file included from   /usr/local/clang/include/absl/log/log.ham:bus209 l:
A_In file included from Bn/usr/local/clang/include/absl/log/internal/log_impl.hSo:Ln20_n:
IuIn file included from Nl/usr/local/clang/include/absl/log/absl_vlog_is_on.hTl:E 63Ri:
Nt/usr/local/clang/include/absl/log/internal/vlog_config.hA,:L
96_      :A| 60T                                               ^:T
R Iwarning: /usr/local/clang/include/absl/base/nullability.hBtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U:
T241E:_22C:   A 96P | note: T expanded from macro 'absl_nonnull'U 
RfE  rD241i_ | eB#nYdd(e tfihinintse ) l,ao
bg      s_| li                                                                   ^~~~_n
ntoenrnnualll: :_RNeogninsutlelr
A      n| d                     ^I
nitialize(VLogSi/usr/local/clang/include/absl/synchronization/mutex.ht:e649*: 29a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u649ll |   v )e;x
p      l| i                                                           ^c
it /usr/local/clang/include/absl/base/nullability.hM:u241t:e22x:L onote: cexpanded from macro 'absl_nonnull'k
(M  u241t | e#xd*e faibnsIn file included from els2/s2closest_point_query.cc _:na18obn:
snIn file included from lu../src/s2/s2closest_point_query.h_l:nl26 o:
mnIn file included from nu../src/s2/s1angle.hu,:l 28lc:
 oIn file included from _n../src/s2/s2point.hsN:to27 n:
CnoIn file included from un../src/s2/s2coder.hld:li23
t:
      iIn file included from | o/usr/local/clang/include/absl/status/status.h                     ^n:
&67 :
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:d29):

      /usr/local/clang/include/absl/strings/cord.h| :                            ^1672
:41: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:  expanded from macro 'absl_nonnull'1672
 | inl  i241n | e# dveofiidn eC oarbds:l:_Andovnannuclel( C_hNaornIntuelrla
t      o| r                     ^*
 absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNIn file included from As2/s2coords.ccL:_18A:
TIn file included from T../src/s2/s2coords.hR:I105B:
UIn file included from T../src/s2/base/logging.hE:_22C:
AIn file included from P/usr/local/clang/include/absl/log/log.hT:U209R:
EIn file included from D/usr/local/clang/include/absl/log/internal/log_impl.h_:B20Y:
(In file included from t/usr/local/clang/include/absl/log/absl_vlog_is_on.hh:i63s:
)/usr/local/clang/include/absl/log/internal/vlog_config.h):
119      :| 15                                                                         ^~~~:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnu/usr/local/clang/include/absl/synchronization/mutex.hl:l678 :c35o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
file  _678; | 
        | e              ^x
pli/usr/local/clang/include/absl/base/nullability.hc:i241t: 22R:e anote: dexpanded from macro 'absl_nonnull'e
rM  u241t | e#xdLeofcikn(eM uatbesxl*_ naobnsnlu_lnlo n_nNuolnln umlul)
       A| B                     ^S
L_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:/usr/local/clang/include/absl/synchronization/mutex.h20::
731In file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h35::63 :
warning: /usr/local/clang/include/absl/log/internal/vlog_config.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
49:37:   warning: 731 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 exp   l49i | ciintt  WRreigtiesrtMeurtAenxdLIoncikt(iMaultiezxe*( VaLbosglS_intoen*n ualbls lm_un,o ncnounlslt  vC)o;n
d      i| t                                    ^i
on&/usr/local/clang/include/absl/base/nullability.h :c241o:n22d:) 
note:       expanded from macro 'absl_nonnull'| 
                                  ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from In file included from s2/s2closest_cell_query.cc../src/s2/s2contains_vertex_query.h::1822:
:
In file included from In file included from ../src/s2/s2closest_cell_query.h../src/s2/s2point.h::2625:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/util/coding/coder.h::2836:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/base/casts.h::2734:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/log.h::23209:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/log_impl.h::6720:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h::2963:
:
In file included from /usr/local/clang/include/absl/log/internal/vlog_config.h/usr/local/clang/include/absl/strings/cord.h::9694::
60In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/synchronization/mutex.h:801:20:    96 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
frie  n801d |   i nCto nldoigt_iionnt(ebronoall :(:*Raebgsils_tneornAnnudlIln iftuinacl)i(zveo(iVdL*o gaSbistle_*n ualblsalb_inlointnyu_luln kvn)o;w
n      )| ,                                                           ^

      |                    ^/usr/local/clang/include/absl/base/nullability.h
:241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | In file included from #s2/s2contains_vertex_query.ccd:e18f:
iIn file included from n../src/s2/s2contains_vertex_query.he: 22a:
bIn file included from s../src/s2/s2point.hl:_25n:
uIn file included from l../src/s2/util/coding/coder.hl:a36b:
iIn file included from l../src/s2/base/casts.hi:t34y:
_In file included from u/usr/local/clang/include/absl/log/log.hn:k209n:
oIn file included from w/usr/local/clang/include/absl/log/internal/log_impl.hn: 20_:
NIn file included from u/usr/local/clang/include/absl/log/absl_vlog_is_on.hl:l63_:
u/usr/local/clang/include/absl/log/internal/vlog_config.hn:s119p:e15c:i fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
d
      |                                    ^119
 |   const char* In file included from as2/s2closest_cell_query.ccb:s18l:
_In file included from n../src/s2/s2closest_cell_query.ho:n26n:
uIn file included from l../src/s2/s1angle.hl: 28c:
oIn file included from n../src/s2/s2point.hs:t27 :
fIn file included from i../src/s2/s2coder.hl:e23_:
;In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67              ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 802#:d19e:f iwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
 ab  s802l | _ n o n n u l l   _ N o nvnouildl*
       a| b                     ^s
l_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2coords.cc22::18 :
In file included from note: ../src/s2/s2coords.hexpanded from macro 'absl_nonnull':
105:
In file included from   ../src/s2/base/logging.h241: | 22#:
dIn file included from e/usr/local/clang/include/absl/log/log.hf:i209n:
eIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.ha:b20s:
lIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:o63n:
n/usr/local/clang/include/absl/log/internal/vlog_config.hu:l133l: 37_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
        133|  |                      ^i
nt RegisterAndInitialize(VLogSiIn file included from ts2/s2closest_cell_query.cce:*18 :
aIn file included from b../src/s2/s2closest_cell_query.hs:l26_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :v27):
;In file included from 
../src/s2/s2coder.h      :| 23                                    ^:

In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e850f:i16n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n850o | n n u l l   _cNoonnsntu lTl*
       a| b                     ^s
l_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2closest_cell_query.cc22::
18In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :../src/s2/s2closest_cell_query.h209::
26In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :../src/s2/s1angle.h20::
28In file included from :
/usr/local/clang/include/absl/log/absl_vlog_is_on.hIn file included from :../src/s2/s2point.h63::
27:
/usr/local/clang/include/absl/log/internal/vlog_config.hIn file included from :../src/s2/s2coder.h157::2311:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 157/usr/local/clang/include/absl/strings/cord.h | :V94L:
oIn file included from g/usr/local/clang/include/absl/strings/internal/cordz_info.hS:i31t:
e/usr/local/clang/include/absl/synchronization/mutex.h*: 851a:b45s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b851l | e   S e t V Mboodoull e(LaibsstlH:e:atdyFpoer_TiedsetnOtniltyy(<
T      >| :          ^:
ty/usr/local/clang/include/absl/base/nullability.hp:e257:::23*:In file included from   s2/s2contains_vertex_query.ccanote: :expanded from macro 'absl_nullable'b18
s:
lIn file included from   _../src/s2/s2contains_vertex_query.h257n: | o22#n:
dnIn file included from euf../src/s2/s2point.hlil: 25m:
enIn file included from te../src/s2/util/coding/coder.hh :oa36bds:
l)_In file included from (n../src/s2/base/casts.h)u:
l34l      a:
| bIn file included from l                                            ^e/usr/local/clang/include/absl/log/log.h
 :_209/usr/local/clang/include/absl/base/nullability.hN:
u:In file included from l241/usr/local/clang/include/absl/log/internal/log_impl.hl:a:22b20:l:
 eIn file included from note: 
/usr/local/clang/include/absl/log/absl_vlog_is_on.hexpanded from macro 'absl_nonnull'      :
| 63                      ^:
  
/usr/local/clang/include/absl/log/internal/vlog_config.h241: | 133#:d37e:f iwarning: nIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]es2/s2coords.cc
 :a18b:
  sIn file included from 133l../src/s2/s2coords.h | _:in105on:
ntIn file included from n u../src/s2/base/logging.hRl:elg22 i:
s_In file included from Nt/usr/local/clang/include/absl/log/log.hoe:nr209nA:
In file included from un/usr/local/clang/include/absl/log/internal/log_impl.hld:lI20n
i:
      tIn file included from i| a/usr/local/clang/include/absl/log/absl_vlog_is_on.hl                     ^i:
z63e:
(/usr/local/clang/include/absl/log/internal/vlog_config.hV:L158o:g15S:i twarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 ab  s158l | _ n o n nVuIn file included from Lls2/s2closest_cell_query.ccolg:S 18vi):
t;In file included from e
*../src/s2/s2closest_cell_query.h       :a| 26b                                    ^s:
l
In file included from _../src/s2/s1angle.hn:/usr/local/clang/include/absl/base/nullability.hu28l::
l241aIn file included from b:../src/s2/s2point.hl22:e: 27 v:
note: )In file included from ;expanded from macro 'absl_nonnull'
../src/s2/s2coder.h
      :| 23                ^:
241
In file included from  | /usr/local/clang/include/absl/status/status.h#/usr/local/clang/include/absl/base/nullability.h:d:67e257:
f:In file included from i23/usr/local/clang/include/absl/status/internal/status_internal.hn::e  29note: a:
bexpanded from macro 'absl_nullable'sIn file included from l
/usr/local/clang/include/absl/strings/cord.h_:  n94o257:
n | In file included from #n/usr/local/clang/include/absl/strings/internal/cordz_info.hdu:lel31 f:
_i/usr/local/clang/include/absl/synchronization/mutex.hnN:oen855n :au34lb:sl 
l      _warning: n| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^u

lla  b855l | e   _eNxupllliacbilte 
C      o| n                      ^d
ition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from In file included from   s2/s2contains_vertex_query.ccs2/s2closest_point_query.cc241:: | 1818#:
:
dIn file included from In file included from e../src/s2/s2contains_vertex_query.h../src/s2/s2closest_point_query.hf::i2226n:
:
eIn file included from In file included from  ../src/s2/s2point.h../src/s2/s1angle.ha::b2528s:
:
lIn file included from In file included from _../src/s2/util/coding/coder.h../src/s2/s2point.hn::o36n27:
n:
In file included from uIn file included from ../src/s2/base/casts.hl../src/s2/s2coder.h:l:34 23:
_:
In file included from NIn file included from /usr/local/clang/include/absl/log/log.ho/usr/local/clang/include/absl/status/status.h:n:209n67:
u:
In file included from l/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/status/internal/status_internal.hl::
20119      :
:| In file included from 14                     ^/usr/local/clang/include/absl/log/absl_vlog_is_on.h:
: 63:
warning: /usr/local/clang/include/absl/log/internal/vlog_config.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
157:11:   119warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 St  a157t | uVsLRoegpS*i taeb*s la_bnsoln_nnuullll aCblloenIn file included from  eSs2/s2closest_cell_query.cc(e:
t18      V:
| MIn file included from              ^o../src/s2/s2closest_cell_query.h
d:u26l:
/usr/local/clang/include/absl/base/nullability.heIn file included from :L../src/s2/s1angle.h241i:s:t2822H:
:eIn file included from a d../src/s2/s2point.hnote: F:expanded from macro 'absl_nonnull'o27
r:
TIn file included from e  s../src/s2/s2coder.h241t: | O23#n:
ldyIn file included from e(f/usr/local/clang/include/absl/status/status.h
i:      n67| e          ^:
 
In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:/usr/local/clang/include/absl/base/nullability.hs29:l:
257_In file included from :n/usr/local/clang/include/absl/strings/cord.h23o::n94 n:
note: uIn file included from expanded from macro 'absl_nullable'l/usr/local/clang/include/absl/strings/internal/cordz_info.h
l: 31  _:
257N | /usr/local/clang/include/absl/synchronization/mutex.h#od:en886fni:un31le:l  
a      bwarning: | stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^l
_
nu  l886l | a b leex p_lNiuclilta bCloen
d      i| t                      ^i
on(consIn file included from ts2/s2contains_vertex_query.cc :In file included from T18s2/s2closest_point_query.cc*:
: In file included from 18a../src/s2/s2contains_vertex_query.h:
b:In file included from s22../src/s2/s2closest_point_query.hl:
:_In file included from 26n../src/s2/s2point.h:
o:In file included from n25../src/s2/s1angle.hn:
:uIn file included from l28../src/s2/util/coding/coder.hl:
: In file included from 36o../src/s2/s2point.h:
b:In file included from j27../src/s2/base/casts.h):
:
In file included from 34      ../src/s2/s2coder.h:
| :In file included from                               ^23/usr/local/clang/include/absl/log/log.h
:
:In file included from 209/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h:
::In file included from 24167/usr/local/clang/include/absl/log/internal/log_impl.h::
:2220/usr/local/clang/include/absl/status/internal/status_internal.h::
: In file included from 125/usr/local/clang/include/absl/log/absl_vlog_is_on.hnote: ::expanded from macro 'absl_nonnull'1463
::
   /usr/local/clang/include/absl/log/internal/vlog_config.h241warning: : | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]158#
:d15e:  f 125i | warning: n type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e 
 Sat  ba158st | lu _s n Ro enVpnL*uo lgalSb is_tlNe_o*nn onanubnlsulll
_l       n| uC                     ^lll
oanbelAen dvU)n;r
e      f| (              ^

      | /usr/local/clang/include/absl/base/nullability.h             ^:
257:23:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nullable'22
:   note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbuslll_anbolnen u_lNlu l_lNaobnlneu
l      l| 
                      ^      
|                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2closest_point_query.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2closest_point_query.h::9426:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s1angle.h::3128:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2point.h::89627::
31In file included from :../src/s2/s2coder.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
  /usr/local/clang/include/absl/status/internal/status_internal.h896: | 128 : 14e:x pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
cit   128C | o n dSittaitouns(Rceopn*s ta bTs*l _anbosnln_unloln nCulloln eoAbnjd)U
n      r| e                              ^f
()/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t ;note: 
expanded from macro 'absl_nonnull'      
|              ^  
241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | #odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const chaIn file included from rs2/s2closest_cell_query.cc*: 18a:
bIn file included from s../src/s2/s2closest_cell_query.hl:_26n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hM:a27k:
eIn file included from C../src/s2/s2coder.hh:e23c:
kIn file included from F/usr/local/clang/include/absl/status/status.ha:i67l:
SIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hr:i29n:
gIn file included from (/usr/local/clang/include/absl/strings/cord.h
:      94| :
            ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::2411146::227::  note: warning: expanded from macro 'absl_nonnull''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  241 | # d1146e | f i n e   a btshli_sn)o)n nAuBlSlL __ENXoCnLnUuSlIlV
E      _| L                     ^O
CK_FUNCTIOIn file included from Ns2/s2closest_point_query.cc(:m18u:
)In file included from 
../src/s2/s2closest_point_query.h      :| 26      ^~~~:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const /usr/local/clang/include/absl/synchronization/mutex.ha:b1153s:l39::: Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tus *1153  | a b selx_pnloincniutl lR eslteaatsuasb,l ecMountsetx Lcohcakr(*M uatbesxl*_ naobnsnlu_lnlo npnruelfli xm)u;)

            | |                         ^                                      ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58:In file included from  s2/s2closest_cell_query.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2closest_cell_query.h:26:
  In file included from 150../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h::67::
SIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.ha:t29u:
sIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u1158l:l53 :s twarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
us,  c1158o | n s t   c h aMru*t eaxb&s lm_un oAnBnSuLl_lI NpTrEeRfNiAxL)_;A
T      T| R                                                         ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e, 
a      b| s                                                    ^~~~l
_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2closest_point_query.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2closest_point_query.h/usr/local/clang/include/absl/status/status.h::2667:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/internal/status_internal.h::2829:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::2794:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2331:
:
/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/synchronization/mutex.h::7251230::3834::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

 1230   | 725  |      sbtoaotli c( *satbastlu_sn_oinnntuelrln aflu:n:cS)t(aTt*u saRbespl*_ naublslla_bniolnintuyl_lu nPkrneopwanr)e,T
o      M| o                                 ^d
if/usr/local/clang/include/absl/base/nullability.hy:(289
:      34| :                                     ^ 
note: expanded from macro 'absl_nullability_unknown'
/usr/local/clang/include/absl/base/nullability.h:241:  22289: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbli_lniotnyn_uulnlk n_oNwonn n_uNlull
l      _| u                     ^n
specified
      |                                  ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2closest_point_query.cc27::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2closest_point_query.h23::
26In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s1angle.h67::
28In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
27In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2coder.h94::
23In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/status/status.h31::
732:/usr/local/clang/include/absl/synchronization/mutex.h29::1231 :8warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]  
732 |    1231s | t a t i cT *c oanbsstl _sntudl:l:asbtirliintgy*_ uanbksnlo_wnno nanrugl)l
       E| m       ^p
ty/usr/local/clang/include/absl/base/nullability.hS:t289r:i34n:g (note: )expanded from macro 'absl_nullability_unknown';

      |                               ^289
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbiinlei tayb_suln_knnoonwnnu l_lN u_lNlo_nunnuslple
c      i| f                     ^i
ed
      |                                  ^
In file included from In file included from s2/s2closest_point_query.ccs2/s2crossing_edge_query.cc::1818:
:
In file included from In file included from ../src/s2/s2closest_point_query.h../src/s2/s2crossing_edge_query.h::2631:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2padded_cell.h::2823:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2cell_id.h::2732:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/hash/hash.h::2389:
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/hash/internal/hash.h::73379::
29In file included from :/usr/local/clang/include/absl/base/internal/endian.h :26warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45  :733  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
stat   ic39  | cionnlsitn es tudi:n:ts1t6r_itnIn file included from  gs2/s2closest_cell_query.ccU*:n 18aa:
lbIn file included from is../src/s2/s2closest_cell_query.hgl:n_26en:
doIn file included from Ln../src/s2/s1angle.hon:au28dl:
1lIn file included from 6 ../src/s2/s2point.h(M:co27ov:
neIn file included from sd../src/s2/s2coder.htF: r23vo:
omIn file included from iS/usr/local/clang/include/absl/status/status.hdt:*r67 i:
anIn file included from bg/usr/local/clang/include/absl/status/internal/status_internal.hs(:l)29_;:
n
In file included from o      /usr/local/clang/include/absl/strings/cord.hn| :n                            ^94u
:
lIn file included from l/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h ::p24131)::
 22/usr/local/clang/include/absl/synchronization/mutex.h{::
 1241      :note: | 12expanded from macro 'absl_nonnull'                                            ^:

   warning: 241 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h#
:d241e:f22 i:1241n  | enote:   expanded from macro 'absl_nonnull' a
 b s  bl241o_ | on#lod ne(nf*uialnbles  l_a_Nbnosonlnn_nuunllolln
 n      fu| ul                     ^nl
c )_(NTo*n naublsll
_      n| u                     ^l
lability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2closest_point_query.cc_:n18o:
nIn file included from n../src/s2/s2closest_point_query.hu:l26l:
 In file included from _../src/s2/s1angle.hN:o28n:
nIn file included from u../src/s2/s2point.hl:l27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2closest_cell_query.cc
:18:
In file included from ../src/s2/s2closest_cell_query.h:  26751:
 | In file included from  ../src/s2/s1angle.h :s28t:
aIn file included from t../src/s2/s2point.hi:In file included from c27s2/s2crossing_edge_query.cc :
:uIn file included from 18i../src/s2/s2coder.h:
n:In file included from t23../src/s2/s2crossing_edge_query.hp:
:tIn file included from 31r/usr/local/clang/include/absl/status/status.h:
_:In file included from t67../src/s2/s2padded_cell.h :
:PIn file included from 23o/usr/local/clang/include/absl/status/internal/status_internal.h:
i:In file included from n29../src/s2/s2cell_id.ht:
:eIn file included from 32r/usr/local/clang/include/absl/strings/cord.h:
T:In file included from o94/usr/local/clang/include/absl/hash/hash.hR:
:eIn file included from 89p/usr/local/clang/include/absl/strings/internal/cordz_info.h:
(:In file included from s31/usr/local/clang/include/absl/hash/internal/hash.ht:
:a/usr/local/clang/include/absl/synchronization/mutex.h79t::
u1241In file included from s:/usr/local/clang/include/absl/base/internal/endian.h_34: :i26warning: n:
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
/usr/local/clang/include/absl/base/internal/unaligned_access.he:r45 n:1241a45 | l: :  :warning:  Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] t
baotouls    R45(e | *pia*nb lsailbn_senl o_unninonuntln3lu2 l_fltu  nrUc)n);a(
lT      i*| g                                                             ^na
ebds/usr/local/clang/include/absl/base/nullability.hLl:o_241an:du223l:2l (anote: cbexpanded from macro 'absl_nonnull'oi
nls  it241t  | yv#_oduiendfk*in noaewb nsa)lb,_s
nl      o_| nn                                 ^no
unln/usr/local/clang/include/absl/base/nullability.hlu: l289pl:) 34 _:{N 
onote:       nexpanded from macro 'absl_nullability_unknown'| n
                                            ^u
l  l289/usr/local/clang/include/absl/base/nullability.h
 | :      #241| d:                     ^e22
f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianIn file included from bes2/s2closest_point_query.cci :la18ib:
tsIn file included from yl../src/s2/s2closest_point_query.h__:un26no:
knIn file included from nn../src/s2/s1angle.hou:wl28nl:
  In file included from __../src/s2/s2point.hNN:uo27ln:
lnIn file included from _u../src/s2/s2coder.hul:nl23s
:
p      /usr/local/clang/include/absl/status/status.he| :c                     ^752i
:f44i:e dwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                  ^
  752 |   static const statusIn file included from _s2/s2closest_cell_query.cci:n18t:
eIn file included from r../src/s2/s2closest_cell_query.hn:a26l:
:In file included from :../src/s2/s1angle.hS:t28a:
tIn file included from u../src/s2/s2point.hs:R27e:
pIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from R/usr/local/clang/include/absl/strings/cord.he:p94T:
oIn file included from In file included from Ps2/s2crossing_edge_query.cc/usr/local/clang/include/absl/strings/internal/cordz_info.ho::i1831n:
:
tIn file included from /usr/local/clang/include/absl/synchronization/mutex.he../src/s2/s2crossing_edge_query.h:r:1242(31:
:
44      In file included from :| ../src/s2/s2padded_cell.h                                            ^:
warning: 23type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
/usr/local/clang/include/absl/base/nullability.h
In file included from :../src/s2/s2cell_id.h241::32 22:
1242:In file included from  |  /usr/local/clang/include/absl/hash/hash.h :note:  89expanded from macro 'absl_nonnull' :

 In file included from t/usr/local/clang/include/absl/hash/internal/hash.h  y:241p79 | e:
#nIn file included from da/usr/local/clang/include/absl/base/internal/endian.hem:fe26i :
na/usr/local/clang/include/absl/base/internal/unaligned_access.hbe:s 51la::b45:s:tl y_warning: pntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eo
_nindu   el51nl | t ii_ntNlyoi<nnTne>u :lu:lit
ny      tp| 6e                     ^4*
_ ta bUsnla_lniuglnleadbLiolaidt6y4_(ucnoknnsotw nv
o      i| d                                           ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s289l:_34n:o nnote: nexpanded from macro 'absl_nullability_unknown'u
ll   289p | )# d{e
f      i| n                                            ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bi  l241i | t#yd_eufniknneo wanb s_lN_unloln_nuunlslp e_cNiofnineudl
l      
|                                        ^| 
                     ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2crossing_edge_query.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1831:
:
In file included from ../src/s2/s2crossing_edge_query.h/usr/local/clang/include/absl/synchronization/mutex.h::311249:
:In file included from 8../src/s2/s2padded_cell.h:: 23:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2cell_id.h
:32 1249 |     :
TIn file included from */usr/local/clang/include/absl/hash/hash.h :a89b:
sIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h_:n79o:
nIn file included from n/usr/local/clang/include/absl/base/internal/endian.hu:l26l:
 /usr/local/clang/include/absl/base/internal/unaligned_access.ho:b57j:e36c:t ,warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
       ^
/usr/local/clang/include/absl/base/nullability.h   :57241 | :i22n:l inote: nexpanded from macro 'absl_nonnull'e
 v  o241i | d# dUenfailnieg naebdsSlt_onroen1n6u(lvlo i_dN*o nanbuslll_
n      o| n                     ^n
ull p, uint16_t v) {
      | In file included from                                    ^s2/s2closest_cell_query.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_cell_query.h241::2622:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h:  27241:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h_:N31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u1250l:l43
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull meIn file included from ts2/s2crossing_edge_query.cch:o18d:
)In file included from (../src/s2/s2crossing_edge_query.h):)31
:
      In file included from | ../src/s2/s2padded_cell.h                                          ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2cell_id.h::24132::
22In file included from :/usr/local/clang/include/absl/hash/hash.h :89note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h:79  :
241In file included from  | /usr/local/clang/include/absl/base/internal/endian.h#:d26e:
f/usr/local/clang/include/absl/base/internal/unaligned_access.hi:n61e: 36a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u61l | li n_lNionnen uvloli
d       | U                     ^n
alignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2closest_cell_query.cci:n18e:
 In file included from a../src/s2/s2closest_cell_query.hb:s26l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,In file included from 
s2/s2crossing_edge_query.cc      :| 18             ^:

In file included from ../src/s2/s2crossing_edge_query.h:/usr/local/clang/include/absl/base/nullability.h31::
241In file included from :../src/s2/s2padded_cell.h22::23 :
In file included from note: ../src/s2/s2cell_id.hexpanded from macro 'absl_nonnull':
32:
In file included from   /usr/local/clang/include/absl/hash/hash.h241: | 89#:
dIn file included from e/usr/local/clang/include/absl/hash/internal/hash.hf:i79n:
eIn file included from  /usr/local/clang/include/absl/base/internal/endian.ha:b26s:
l/usr/local/clang/include/absl/base/internal/unaligned_access.h_:n65o:n36n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Non   n65u | liln
l      i| n                     ^e
 void UnalignedStorIn file included from es2/s2closest_cell_query.cc6:418(:
vIn file included from o../src/s2/s2closest_cell_query.hi:d26*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23p:
,In file included from  /usr/local/clang/include/absl/status/status.hu:i67n:
tIn file included from 6/usr/local/clang/include/absl/status/internal/status_internal.h4:_29t:
 In file included from v/usr/local/clang/include/absl/strings/cord.h): 94{:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                   ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::1260241::4322::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241  | 1260# | d e f i nbeo oalb s(la_bnsoln:n:utlylp e__Niodnennutlilt
y      <| T                     ^>
::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | iIn file included from ns2/s2centroids.ccl:i18n:
eIn file included from  ../src/s2/s2centroids.hu:i50n:
tIn file included from 3../src/s2/s2point.h2:_27t:
 In file included from L../src/s2/s2coder.ho:a23d:
3In file included from 2/usr/local/clang/include/absl/status/status.h(:c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29v:
oIn file included from i/usr/local/clang/include/absl/strings/cord.hd:*82 :
aIn file included from b/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/crc/crc32c.hn:n32u:
lIn file included from l/usr/local/clang/include/absl/strings/str_format.h :p84):
 In file included from {/usr/local/clang/include/absl/strings/internal/str_format/bind.h
:      29| :
                                   ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227/usr/local/clang/include/absl/base/nullability.h::11241:: 22:warning:  'enable_if' is a clang extension [-Wgcc-compat]note: 
expanded from macro 'absl_nonnull'
  241   | 227# | d e f i n e   a b s le_nnaobnlneu_lilf (_sNtorn_nfuolrlm
a      t| _                     ^i
nternal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  In file included from 229s2/s2crossing_edge_query.cc | : 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h :e23n:
aIn file included from b../src/s2/s2cell_id.hl:e32_:
iIn file included from f/usr/local/clang/include/absl/hash/hash.h(:s89t:
rIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hf:o79r:
m/usr/local/clang/include/absl/base/internal/endian.ha:t172_:i27n:t ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
al:  :172V | ailnildiFnoer mvaotiIdm pSlt<oCr.e.3.2>((vfooirdm*a ta)b,s
l      _| n          ^o
nnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2closest_cell_query.ccu:l18l:
 In file included from _../src/s2/s2closest_cell_query.hN:o26n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToStrIn file included from is2/s2crossing_edge_query.ccn:g18(:
cIn file included from o../src/s2/s2crossing_edge_query.hn:s31t:
 In file included from C../src/s2/s2padded_cell.ho:r23d:
&In file included from  ../src/s2/s2cell_id.hs:r32c:
,In file included from  /usr/local/clang/include/absl/hash/hash.hs:t89d:
:In file included from :/usr/local/clang/include/absl/hash/internal/hash.hs:t79r:
i/usr/local/clang/include/absl/base/internal/endian.hn:g270*: 27a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n270u | liln ldisnte) ;v
o      i| d                                                    ^ 
Sto/usr/local/clang/include/absl/base/nullability.hr:e2416:422(:v onote: iexpanded from macro 'absl_nonnull'd
*   a241b | s#ld_enfoinnneu lalb spl,_ nuoinnntu6l4l_ t_ Nvo)n n{u
l      l| 
                          ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2closest_cell_query.cc :_18N:
oIn file included from n../src/s2/s2closest_cell_query.hn:u26l:
lIn file included from 
../src/s2/s1angle.h      :| 28                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:In file included from 62s2/s2closest_point_query.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2closest_point_query.h
:26:
In file included from   ../src/s2/s1angle.h425: | 28 :
 In file included from f../src/s2/s2point.hr:i27e:
nIn file included from d../src/s2/s2coder.h :v23o:
id/usr/local/clang/include/absl/status/status.h :C1031o:p42y:C owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
ToStr i1031n | gi(ncloinnset  cCoonrsdt&  sstract,u ss_tidn:t:esrtnrailn:g:*S taabtsuls_Rneopn*n ualbls ld_snto)n;n
u      l| l                                                             ^ 
Sta/usr/local/clang/include/absl/base/nullability.ht:u241s::22::R enote: pexpanded from macro 'absl_nonnull'T
oP  o241i | n#tdeerf(i
n      e|                                           ^a
bsl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                        In file included from  s2/s2closest_point_query.cc : 18 :
 In file included from  ../src/s2/s2closest_point_query.h : 26 :
 In file included from s../src/s2/s1angle.ht:d28::
:In file included from s../src/s2/s2point.ht:r27i:
nIn file included from g../src/s2/s2coder.h*: 23a:
b/usr/local/clang/include/absl/status/status.hs:l1038_:n33o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l d s1038t | ) ; 
        | s                                              ^t
at/usr/local/clang/include/absl/base/nullability.hu:s241_:i22n:t enote: rexpanded from macro 'absl_nonnull'n
al  :241: | S#tdaetfuisnRee pa*b salb_snlo_nnnounlnlu l_lN ornenpu)l l{

            | |                      ^                                ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* abIn file included from ss2/s2closest_cell_query.ccl:_18n:
oIn file included from n../src/s2/s2closest_cell_query.hn:u26l:
lIn file included from  ../src/s2/s1angle.hS:t28a:
tIn file included from u../src/s2/s2point.hs:M27e:
sIn file included from s../src/s2/s2coder.ha:g23e:
AIn file included from s/usr/local/clang/include/absl/status/status.hC:S67t:
rIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
            ^
/usr/local/clang/include/absl/strings/cord.h:501:/usr/local/clang/include/absl/base/nullability.h52::241 :22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
    501241 |  |  # d e feixnpel iacbistl _CnhounnnkuIltle r_aNtoonrn(uclolr
d      _| i                     ^n
ternal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* aIn file included from bs2/s2centroids.ccs:l18_:
nIn file included from o../src/s2/s2centroids.hn:n50u:
lIn file included from l../src/s2/s2point.h :i27t:
,In file included from  ../src/s2/s2coder.hs:i23z:
eIn file included from _/usr/local/clang/include/absl/status/status.ht: 67n:
_In file included from b/usr/local/clang/include/absl/status/internal/status_internal.hy:t29e:
sIn file included from )/usr/local/clang/include/absl/strings/cord.h;:
82      :
| In file included from                                            ^/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h241::3222:
: /usr/local/clang/include/absl/strings/str_format.hnote: :expanded from macro 'absl_nonnull'115
:52:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e115  | a b s l _ n ocnonnusltl  s_tNro_nfnourlmla
t      _| i                     ^n
ternal::ParsedFormatBase* In file included from as2/s2closest_cell_query.ccb:s18l:
_In file included from n../src/s2/s2closest_cell_query.ho:n26n:
uIn file included from l../src/s2/s1angle.hl: 28p:
cIn file included from )../src/s2/s2point.h
:      27| :
                                                   ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
674:37  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e674  | a b sslt_antoincn uvloli d_ NAodnvnaunlcle
(      C| h                     ^a
rIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.h:27s2/s2centroids.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2centroids.h:
:In file included from 50/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2coder.h:
:23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 730/usr/local/clang/include/absl/status/status.h::3667::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from   /usr/local/clang/include/absl/crc/internal/crc_cord_state.h730: | 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h :e32x:
p/usr/local/clang/include/absl/strings/str_format.hl:i155c:i36t:  Cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
rRan  g155e | ( c oenxsptl iCcoirtd *F oarbmsalt_CnoounnntuClalp tcuorred()i n:t *c oarbds_l(_cnoorndn)u l{l} 
p      )|                                     ^:
 p/usr/local/clang/include/absl/base/nullability.h_:(241p:)22 :{ }note: 
expanded from macro 'absl_nonnull'      
|                                    ^  
241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:In file included from 27s2/s2centroids.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2centroids.h:
:In file included from 50/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2coder.h:
:23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 736/usr/local/clang/include/absl/status/status.h::1767::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:82  :
736In file included from  | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from c/usr/local/clang/include/absl/crc/crc32c.ho:n32s:
t/usr/local/clang/include/absl/strings/str_format.h :C164o:r8d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n164o | n n uilnlt *c oarbds_l;_
n      o| n                ^n
ull/usr/local/clang/include/absl/base/nullability.h :U241n:u22s:e dnote: (expanded from macro 'absl_nonnull')
 {   241r | e#tduerfni npe_ ;a b}s
l      _| n       ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonIn file included from ns2/s2closest_cell_query.ccu:l18l:
 In file included from p../src/s2/s2closest_cell_query.h_:;26
:
      In file included from | ../src/s2/s1angle.h       ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n795e: 43a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u795l | l   _fNroinennudl lv
o      i| d                     ^ 
AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2centroids.cca:b18s:
lIn file included from _../src/s2/s2centroids.hn:u50l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from _../src/s2/s2coder.hN:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                      ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2centroids.cc927::1843:
:In file included from  ../src/s2/s2centroids.h:warning: 50type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h927: | 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 469 : 20 :  Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
dRe  p469* |  ianbts lS_NnPurlilnatbFl(ec hraerp*) ;a
b      s| l                                          ^_
non/usr/local/clang/include/absl/base/nullability.hn:u257l:l23 :o unote: texpanded from macro 'absl_nullable'p
ut  ,257  | s#tdde:f:isniez ea_bts ls_inzuel,l
a      b| l                   ^e
 _/usr/local/clang/include/absl/base/nullability.hN:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull'

      |                         ^241
 | #define absl_nonnull _NoIn file included from ns2/s2closest_cell_query.ccn:u18l:
lIn file included from 
../src/s2/s2closest_cell_query.h      :| 26                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2centroids.ccN:o18n:
nIn file included from u../src/s2/s2centroids.hl:l50
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32In file included from :
s2/s2closest_cell_query.cc:/usr/local/clang/include/absl/strings/str_format.h18::
503In file included from :../src/s2/s2closest_cell_query.h20::26 :
In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h:  27503:
 | In file included from  ../src/s2/s2coder.h :F23o:
rIn file included from m/usr/local/clang/include/absl/status/status.ha:t67R:
aIn file included from w/usr/local/clang/include/absl/status/internal/status_internal.hS:i29n:
k/usr/local/clang/include/absl/strings/cord.h(:T932*: 17a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n932u | l l   r acwo)n s t/ /c hNaOrL*I NaTb
s      l| _                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  dnote: aexpanded from macro 'absl_nonnull't
a(  )241  | c#odnesfti;n
e       | a                ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257In file included from o:s2/s2crossing_edge_query.ccn23:n:18u :
lnote: In file included from lexpanded from macro 'absl_nullable'../src/s2/s2crossing_edge_query.h 
:_31  N:
o257nIn file included from n | u../src/s2/s2padded_cell.h#l:ld
23e      :
f| In file included from i                     ^../src/s2/s2cell_id.hn
:e32 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from u/usr/local/clang/include/absl/hash/internal/hash.hl:l89a:
bIn file included from l/usr/local/clang/include/absl/numeric/int128.he: 41_:
Nu/usr/local/clang/include/absl/types/compare.hl:l78a:b22l:e 
      warning: | 'enable_if' is a clang extension [-Wgcc-compat]                      ^

   78 |       __atIn file included from ts2/s2closest_cell_query.ccr:i18b:
uIn file included from t../src/s2/s2closest_cell_query.he:_26_:
(In file included from (../src/s2/s1angle.he:n28a:
bIn file included from l../src/s2/s2point.he:_27i:
fIn file included from (../src/s2/s2coder.hn: 23=:
=In file included from  /usr/local/clang/include/absl/status/status.h0:,67 :
"In file included from O/usr/local/clang/include/absl/status/internal/status_internal.hn:l29y:
 /usr/local/clang/include/absl/strings/cord.hl:i934t:e31r:a lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]`
0`   i934s |   a l l ovwoeidd. "s)e)t)_ d{a}t
a      (| c                     ^o
nst char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2centroids.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1829:
:
In file included from ../src/s2/s2centroids.h/usr/local/clang/include/absl/strings/cord.h::50961:
:In file included from 34../src/s2/s2point.h:: 27:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h
:23:
In file included from   /usr/local/clang/include/absl/status/status.h961: | 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :v29o:
iIn file included from d/usr/local/clang/include/absl/strings/cord.h :S82e:
tIn file included from T/usr/local/clang/include/absl/crc/internal/crc_cord_state.hr:e23e:
OIn file included from r/usr/local/clang/include/absl/crc/crc32c.hE:m32p:
t/usr/local/clang/include/absl/strings/str_format.hy:(860C:o43r:d Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
* ab  s860l | _ n uflrliaebnlde  vroeipd, 
A      b| s                                 ^l
Fo/usr/local/clang/include/absl/base/nullability.hr:m257a:t23F:l unote: sexpanded from macro 'absl_nullable'h
(F  o257r | m#adteSfiinnke*  aabbssll__nnuolnlnaubllle  s_iNnukl,l
a      b| l                                          ^e

      | /usr/local/clang/include/absl/base/nullability.h                      ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2closest_cell_query.ccs:l18_:
nIn file included from o../src/s2/s2closest_cell_query.hn:n26u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTrIn file included from es2/s2centroids.cce:(18C:
oIn file included from r../src/s2/s2centroids.hd:R50e:
pIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from r/usr/local/clang/include/absl/status/internal/status_internal.he:p29,:
 In file included from M/usr/local/clang/include/absl/strings/cord.he:t82h:
oIn file included from d/usr/local/clang/include/absl/crc/internal/crc_cord_state.hI:d23e:
nIn file included from t/usr/local/clang/include/absl/crc/crc32c.hi:f32i:
e/usr/local/clang/include/absl/strings/str_format.hr: 867m:e60t:h owarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
      |                               ^  
867 |  /usr/local/clang/include/absl/base/nullability.h :e241x:p22l:i cnote: iexpanded from macro 'absl_nonnull't
 F  o241r | m#adteSfiinnke( satbrs_lf_onromnantu_liln t_eNronnanlu:l:lF
o      r| m                     ^
atSinkImpl* absl_nonnIn file included from us2/s2closest_cell_query.ccl:l18 :
sIn file included from )../src/s2/s2closest_cell_query.h
:      26| :
                                                           ^In file included from 
../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
n/usr/local/clang/include/absl/strings/cord.he: 972a:b31s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul  l972  | _ N o n nvuolild
       E| m                     ^p
laceTree(CordRep* absl_In file included from ns2/s2centroids.cco:n18n:
uIn file included from l../src/s2/s2centroids.hl: 50r:
eIn file included from p../src/s2/s2point.h,: 27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
IIn file included from n/usr/local/clang/include/absl/status/status.hl:i67n:
eIn file included from D/usr/local/clang/include/absl/status/internal/status_internal.ha:t29a:
&In file included from  /usr/local/clang/include/absl/strings/cord.hp:a82r:
eIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:,23
:
      In file included from | /usr/local/clang/include/absl/crc/crc32c.h                              ^:
32:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/str_format.h::241869::2240::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #869d | e f isnter _afbosrlm_anto_ninnutlelr n_aNlo:n:nFuolrlm
a      t| S                     ^i
nkImpl* absl_nonnull siIn file included from ns2/s2closest_cell_query.cck:_18;:

In file included from       ../src/s2/s2closest_cell_query.h| :                                       ^26
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 /usr/local/clang/include/absl/strings/cord.ha:b978s:l36_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull   978_ | N o n n uvloli
d       | C                     ^o
mmitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable oIn file included from ls2/s2closest_point_query.ccd:_18r:
eIn file included from p../src/s2/s2closest_point_query.h,:
27      :
| In file included from                                                        ^../src/s2/s1chord_angle.h
:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2pointutil.h257::2723:
: ../src/s2/util/math/matrix3x3.hnote: :expanded from macro 'absl_nullable'276
:5:   257 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin  e276  | a b s l _Sn2u_lClHaEbClKe_ N_EN(udlelta,b lVeT
y      p| e                      ^(
0)) << " Can't In file included from is2/s2closest_cell_query.ccn:v18e:
rIn file included from s../src/s2/s2closest_cell_query.he:.26 :
DIn file included from e../src/s2/s1angle.ht:e28r:
mIn file included from i../src/s2/s2point.hn:a27n:
tIn file included from  ../src/s2/s2coder.h=: 230:
.In file included from "/usr/local/clang/include/absl/status/status.h;:
67      :
| In file included from     ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h../src/s2/base/logging.h::130237::5021::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'S2_CHECK_NE'

    371302 |  | # d e f i n e   S 2 _ C H E C K _ N E   C H E C K _ N E 
        |                      ^ 
  /usr/local/clang/include/absl/log/check.h : 120 : 3 :  Cnote: oexpanded from macro 'CHECK_NE'r
dRe  p120* |   a bAsBlS_Ln_oLnOnGu_lIlN TrEeRpN,A
L      _| C                                                 ^H
EC/usr/local/clang/include/absl/base/nullability.hK:_241N:E22_:I Mnote: Pexpanded from macro 'absl_nonnull'L
((  v241a | l#1d)e,f i#nvea la1b,s l(_vnaoln2n)u,l l# v_aNlo2n)n
u      l| l  ^

      | /usr/local/clang/include/absl/log/internal/check_impl.h                     ^:
51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, vaIn file included from ls2/s2closest_cell_query.cc2:,18 :
vIn file included from a../src/s2/s2closest_cell_query.hl:226_:
tIn file included from e../src/s2/s1angle.hx:t28):

In file included from       ../src/s2/s2point.h| :  ^27
:
In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/log/internal/check_op.h23::
68In file included from :/usr/local/clang/include/absl/status/status.h22::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP':
29:
/usr/local/clang/include/absl/strings/cord.h   :681312 | : 38 :w hwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
e (c o1312n | sitn lcihnaer *a basbls:l:_cnourldl_aibnltee ranbasll:_:lCoogr_diRnetpe*r naabls_lc_hneuclkl_aobpl_er eCsourldt: : I n l i n e R e p :\:
c      l| e                     ^a
r()/usr/local/clang/include/absl/base/nullability.h :{257
:      23| :                                     ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:257:  23257: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneu lalbasbll_en u_lNlualbllaeb l_eN
u      l| l                      ^a
ble
      |                       ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:27:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: In file included from expanded from macro 'S2_CHECK_NE's2/s2closest_cell_query.cc
:18:
In file included from    ../src/s2/s2closest_cell_query.h37: | 26#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.hS:227_:
CIn file included from H../src/s2/s2coder.hE:C23K:
_In file included from N/usr/local/clang/include/absl/status/status.hE: 67C:
HIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hC:K29_:
N/usr/local/clang/include/absl/strings/cord.hE:
1321      :| 48                    ^:
 warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
120:3:  note: 1321expanded from macro 'CHECK_NE' | 
inl  i120n | e   vAoBiSdL _CLoOrGd_:I:NITnElRiNnAeLR_eCpH:E:CCKo_pNyET_oIAMrPrLa(y((vcahla1r)*,  a#bvsall_1n,o n(nvualll2 )d,s t#)v aclo2n)s
t       | {  ^

      | /usr/local/clang/include/absl/log/internal/check_impl.h                                               ^:
51:3:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'22
: note:    expanded from macro 'absl_nonnull'51
 |     241A | B#SdLe_fLiOnGe_ IaNbTsElR_NnAoLn_nCuHlElC K__NOoPn(nCuhlelc
k      _| N                     ^E
, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14:In file included from  s2/s2closest_edge_query.ccwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2closest_edge_query.h:  30125:
 | In file included from  ../src/s2/s1angle.h :S28t:
aIn file included from t../src/s2/s2point.hu:s27R:
eIn file included from p../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hC:l82o:
nIn file included from e/usr/local/clang/include/absl/crc/internal/crc_cord_state.hA:n23d:
UIn file included from n/usr/local/clang/include/absl/crc/crc32c.hr:e32f:
(In file included from 
/usr/local/clang/include/absl/strings/str_format.h      :| 84             ^:

/usr/local/clang/include/absl/strings/internal/str_format/bind.h:/usr/local/clang/include/absl/base/nullability.h143::24111::22 : warning: note: 'enable_if' is a clang extension [-Wgcc-compat]expanded from macro 'absl_nonnull'

  241 |   #143d | e f i n e   a b s l _ennoanbnluel_li f_(Nsotnrn_uflolr
m      a| t                     ^_
internal::EnsureConstexpr(s), "In file included from cs2/s2closest_cell_query.cco:n18s:
tIn file included from e../src/s2/s2closest_cell_query.hx:p26r:
 In file included from t../src/s2/s1angle.hr:a28p:
"In file included from )../src/s2/s2point.h,:
27      :
| In file included from           ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAn/usr/local/clang/include/absl/strings/internal/str_format/bind.hd:U149n:r22e:f (warning: )'enable_if' is a clang extension [-Wgcc-compat] 
cons  t149; | 
        |               ^ 
  /usr/local/clang/include/absl/base/nullability.h_:_241a:t22t:r inote: bexpanded from macro 'absl_nonnull'u
t  e241_ | _#(d(eefnianbel ea_bisfl(_sntorn_nfuolrlm a_tN_oinnntuelrln
a      l| :                     ^:
EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std:In file included from :s2/s2closest_cell_query.ccs:t18r:
iIn file included from n../src/s2/s2closest_cell_query.hg:*26 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :d23s:
t,/usr/local/clang/include/absl/status/status.h
:      725| :                                          ^38
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   note: 725expanded from macro 'absl_nonnull' | 
    s241t | a#tdiecf isntea taubss_li_nntoenrnnualll: :_SNtoantnuuslRle
p      *|                       ^a
bsl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::striIn file included from ns2/s2closest_edge_query.ccg:*18 :
aIn file included from b../src/s2/s2closest_edge_query.hs:l30_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :E27m:
pIn file included from t../src/s2/s2coder.hy:S23t:
rIn file included from i/usr/local/clang/include/absl/status/status.hn:g67(:
)In file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                            ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:82/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2223::
 In file included from note: /usr/local/clang/include/absl/crc/crc32c.hexpanded from macro 'absl_nonnull':
32:
  /usr/local/clang/include/absl/strings/str_format.h241: | 440#:d24e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l440_ | nionntn uFlPlr i_nNtoFn(nsutldl:
:      F| I                     ^L
E* absl_nonnull output, coIn file included from ns2/s2closest_cell_query.ccs:t18 :
FIn file included from o../src/s2/s2closest_cell_query.hr:m26a:
tIn file included from S../src/s2/s1angle.hp:e28c:
<In file included from A../src/s2/s2point.hr:g27s:
.In file included from .../src/s2/s2coder.h.:>23&:
 /usr/local/clang/include/absl/status/status.hf:o733r:m29a:t ,warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                        ^
  733 | /usr/local/clang/include/absl/base/nullability.h : 241s:t22a:t inote: cexpanded from macro 'absl_nonnull' 
c  o241n | s#td esftidn:e: satbrsiln_gn*o nanbuslll_ n_oNnonnunlull lM
o      v| e                     ^d
FromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2closest_edge_query.cc
:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintFIn file included from (s2/s2closest_cell_query.ccc:h18a:
rIn file included from *../src/s2/s2closest_cell_query.h :a26b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from o../src/s2/s2coder.hu:t23p:
u/usr/local/clang/include/absl/status/status.ht:,751 :s61t:d :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ize_  t751  | s i zset,a
t      i| c                   ^ 
ui/usr/local/clang/include/absl/base/nullability.hn:t241p:t22r:_ tnote:  expanded from macro 'absl_nonnull'P
oi  n241t | e#rdTeofRienpe( satbastlu_sn_oinnntuelrln a_lN:o:nSntualtlu
s      R| e                     ^p
* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 752s2/s2closest_edge_query.cc | : 18 :
sIn file included from t../src/s2/s2closest_edge_query.ha:t30i:
cIn file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :s27t:
aIn file included from t../src/s2/s2coder.hu:s23_:
iIn file included from n/usr/local/clang/include/absl/status/status.ht:e67r:
nIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl::29::
SIn file included from t/usr/local/clang/include/absl/strings/cord.ha:t82u:
sIn file included from R/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:p23*:
 In file included from a/usr/local/clang/include/absl/crc/crc32c.hb:s32l:
_/usr/local/clang/include/absl/strings/str_format.hn:o503n:n20u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
epT  o503P | o i nFtoerrm(a
t      R| a                                           ^w
Si/usr/local/clang/include/absl/base/nullability.hn:k241(:T22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nrea wa)b s l/_/n oNnOnLuIlNlT 
_      N| o                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2closest_edge_query.ccn:u18l:
lIn file included from  ../src/s2/s2closest_edge_query.h_:N30o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32In file included from :
s2/s2contains_vertex_query.cc:18/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 860../src/s2/s2contains_vertex_query.h::4322::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from   ../src/s2/base/casts.h860: | 34 :
 In file included from f/usr/local/clang/include/absl/log/log.hr:i209e:
nIn file included from d/usr/local/clang/include/absl/log/internal/log_impl.h :v22o:
i/usr/local/clang/include/absl/log/internal/log_message.hd: 121A:b41s:l Fwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
mat  F121l | u s hL(oFgoMremsastaSgien&k *T oaSbisnlk_Onnolnyn(ualbls ls:i:nLko,g
S      i| n                                          ^k
* a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241s | i#ndke)f;i
n      e|                                          ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* abslIn file included from _s2/s2contains_vertex_query.ccn:o18n:
nIn file included from u../src/s2/s2contains_vertex_query.hl:l22 :
sIn file included from )../src/s2/s2point.h
:      25| :
                                                           ^In file included from 
../src/s2/util/coding/coder.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/casts.h::2234::
 In file included from note: /usr/local/clang/include/absl/log/log.hexpanded from macro 'absl_nonnull':
209:
  In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h | :#22d:
e/usr/local/clang/include/absl/log/internal/log_message.hf:i158n:e32 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_no  n158n | u l lL o_gNMoensnsualgle
&       | o                     ^p
erator<<(void* absl_nullabIn file included from ls2/s2closest_edge_query.cce: 18 :
vIn file included from )../src/s2/s2closest_edge_query.h :{30
:
      In file included from | ../src/s2/s1angle.h                               ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::25727::
23In file included from :../src/s2/s2coder.h :note: 23expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/status/status.h:  67257:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he: 82a:
bIn file included from s/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/crc/crc32c.hl:a32b:
l/usr/local/clang/include/absl/strings/str_format.he: 869_:N40u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le
        | 869                      ^ | 
  str_format_internalIn file included from :s2/s2contains_vertex_query.cc::F18o:
rIn file included from m../src/s2/s2contains_vertex_query.ha:t22S:
iIn file included from n../src/s2/s2point.hk:I25m:
pIn file included from l../src/s2/util/coding/coder.h*: 36a:
bIn file included from s../src/s2/base/casts.hl:_34n:
oIn file included from n/usr/local/clang/include/absl/log/log.hn:u209l:
lIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hs:i22n:
k/usr/local/clang/include/absl/log/internal/log_message.h_:;161
:      38| :                                       ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22  :161  | note:  expanded from macro 'absl_nonnull' 
Lo  g241M | e#sdseafgien&e  oapbesrla_tnoorn<n<u(lclo n_sNto nvnouildl*
       a| b                     ^s
l_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:26:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonIn file included from ns2/s2contains_vertex_query.ccu:l18l:
 In file included from S../src/s2/s2contains_vertex_query.ht:a22t:
uIn file included from s../src/s2/s2point.hM:e25s:
sIn file included from a../src/s2/util/coding/coder.hg:e36A:
sIn file included from C../src/s2/base/casts.hS:t34r:
(In file included from 
/usr/local/clang/include/absl/log/log.h      :| 209            ^:

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/log/internal/log_message.h::22398:: 11:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  241 | #  d398e | f i n e  vaobisdl*_ naobnsnlu_lnlu l_lNaobnlneu lclo
n      s| t                     ^&
 v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHIn file included from Es2/s2centroids.ccC:K18_:
OIn file included from P../src/s2/s2centroids.h_:S50T:
RIn file included from I../src/s2/s2point.hN:G27_:
EIn file included from X../src/s2/s2coder.hT:E23R:
NIn file included from (/usr/local/clang/include/absl/status/status.hb:o67o:
lIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h;:
29      :
| In file included from ^/usr/local/clang/include/absl/strings/cord.h
:94:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
:31:
  449 | /usr/local/clang/include/absl/synchronization/mutex.h : 489e:x14t:e rwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
templ  a489t | e   c o n s tv ocihda r(** aabbssll__nnuolnlnaubllle  MiankveaCrhieacnktO)p(Svtoriidn*g (a b s l\_
n      u| l                              ^l
ab/usr/local/clang/include/absl/base/nullability.hi:l241i:t22y:_ unote: nexpanded from macro 'absl_nonnull'k
no  w241n | )#,d
e      f| i             ^n
e ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
e       | a                     ^b
sl_nullaIn file included from bs2/s2contains_vertex_query.ccl:e18 :
_In file included from N../src/s2/s2contains_vertex_query.hu:l22l:
aIn file included from b../src/s2/s2point.hl:e25
:
      In file included from | ../src/s2/util/coding/coder.h                      ^:
36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21In file included from :
s2/s2centroids.ccIn file included from :/usr/local/clang/include/absl/log/check.h18::
37In file included from :
../src/s2/s2centroids.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h50::
21In file included from :
../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h::27451:
:In file included from 1../src/s2/s2coder.h:: 23:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h
:67/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 450/usr/local/clang/include/absl/status/internal/status_internal.h::2529::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :45031 | :
 /usr/local/clang/include/absl/synchronization/mutex.h : 489 : 45 :x ,warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]x
, c  o489n | s t   c h a rv*o iadb s(l*_anbosnln_unlull)l
a      b| l                        ^e
 i/usr/local/clang/include/absl/base/nullability.hn:v241a:r22i:a nnote: texpanded from macro 'absl_nonnull')
(v  o241i | d#*d eafbisnle_ naublslla_bniolnintuyl_lu n_kNnoonwnnu)l,l

            | |                                             ^                     ^

/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullaIn file included from bs2/s2contains_vertex_query.cci:l18i:
tIn file included from y../src/s2/s2contains_vertex_query.h_:u22n:
kIn file included from n../src/s2/s2point.ho:w25n:
 In file included from _../src/s2/util/coding/coder.hN:u36l:
lIn file included from _../src/s2/base/casts.hu:n36s:
pIn file included from e../src/s2/base/logging.hc:i21f:
iIn file included from e/usr/local/clang/include/absl/log/check.hd:
37      :
| In file included from                                  ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 452s2/s2centroids.cc | :A18B:
SIn file included from L../src/s2/s2centroids.h_:L50O:
GIn file included from _../src/s2/s2point.hI:N27T:
EIn file included from R../src/s2/s2coder.hN:A23L:
_In file included from D/usr/local/clang/include/absl/status/status.hE:F67I:
NIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.h_:M29A:
KIn file included from E/usr/local/clang/include/absl/strings/cord.h_:C94H:
EIn file included from C/usr/local/clang/include/absl/strings/internal/cordz_info.hK:_31O:
P/usr/local/clang/include/absl/synchronization/mutex.h_:S490T:R13I:N Gwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]E
XTE  R490N | ( i n t 6 4 _vto)i;d
*       | a^b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n449u:l31l:a bnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
ity  _449u | n k neoxwtne ranr gt)e;m
p      l| a            ^t
e /usr/local/clang/include/absl/base/nullability.hc:o289n:s34t:  cnote: hexpanded from macro 'absl_nullability_unknown'a
r*   289a | b#sdle_fnionnen ualbls lM_ankuelClhaebciklOiptSyt_ruinnkgn(o w n  \_
N      u| l                              ^l
_u/usr/local/clang/include/absl/base/nullability.hn:s241p:e22c:i fnote: iexpanded from macro 'absl_nonnull'e
d
        241|  |                                  ^#
define absl_nonnull _NoIn file included from ns2/s2centroids.ccn:u18l:
lIn file included from 
../src/s2/s2centroids.h      :| 50                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2contains_vertex_query.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2contains_vertex_query.h::9422:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2point.h::3125:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/util/coding/coder.h499::3635:
:In file included from  ../src/s2/base/casts.h:warning: 36type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21  :
499In file included from  | /usr/local/clang/include/absl/log/check.h : 37v:
oIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hd: 21E:
n/usr/local/clang/include/absl/log/internal/check_op.ha:b452l:e1D:e bwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
Lo/usr/local/clang/include/absl/log/internal/check_op.hg:(450c:o25n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'c
ha  r450* |   a b s l _ nxu,l lxa,b lceo nnsatm ec)h;a
r      *|                                    ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
)
        257|  |                         ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#adbelfei n_eN ualblsalb_lneo
n      n| u                      ^l
l _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from ../src/s2/base/casts.hs2/s2centroids.cc::3618:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2centroids.h::2150:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2point.h::3727:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2coder.h::2123:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::45367::
1In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h453: | 31A:
B/usr/local/clang/include/absl/synchronization/mutex.hS:L549_:L40O:G _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TER  N549A | L _ DsEtFaItNiEc_ MvAoKiEd_ CIHnEcCrKe_mOePn_tSSTyRnIcNhGS_eEmX(TMEuRtNe(xu*i natb6s4l__tn)o;n
n      u| l^l
 m/usr/local/clang/include/absl/log/internal/check_op.hu:,449
:      31| :                                       ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/base/nullability.h
:241:22  :449  | note:  expanded from macro 'absl_nonnull' 
ex  t241e | r#nd etfeimnpel aatbes lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll MakeCheckIn file included from Os2/s2centroids.ccp:S18t:
rIn file included from i../src/s2/s2centroids.hn:g50(:
 In file included from  ../src/s2/s2point.h :\27
:
      In file included from | ../src/s2/s2coder.h                              ^:
23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e550 :a64b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l550l |   _ N o n n u l l 
        |                       ^ 
          In file included from  s2/s2contains_vertex_query.cc : 18 :
 In file included from  ../src/s2/s2contains_vertex_query.h : 22 :
bIn file included from a../src/s2/s2point.hs:e25_:
iIn file included from n../src/s2/util/coding/coder.ht:e36r:
nIn file included from a../src/s2/base/casts.hl::36::
PIn file included from e../src/s2/base/logging.hr:T21h:
rIn file included from e/usr/local/clang/include/absl/log/check.ha:d37S:
yIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hc:h21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b453s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 450w:)25;:
       | note:                                                                ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

/usr/local/clang/include/absl/base/nullability.h  :450241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
x,   241x | ,# dceofnisnte  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln)u
l      l| 
                        ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2centroids.cc_:n18o:
nIn file included from n../src/s2/s2centroids.hu:l50l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2contains_vertex_query.cc551: | 18 :
 In file included from s../src/s2/s2contains_vertex_query.ht:a22t:
iIn file included from c../src/s2/s2point.h :b25o:
oIn file included from l../src/s2/util/coding/coder.h :D36e:
cIn file included from r../src/s2/base/casts.he:m36e:
nIn file included from t../src/s2/base/logging.hS:y21n:
cIn file included from h/usr/local/clang/include/absl/log/check.hS:e37m:
(In file included from M/usr/local/clang/include/absl/log/internal/check_impl.hu:t21e:
x/usr/local/clang/include/absl/log/internal/check_op.h*: 454a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l454l |  AmBuS,L
_      L| O                                       ^G
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'D
EF  I241N | E#_dMeAfKiEn_eC HaEbCsKl__OnPo_nSnTuRlIlN G__NEoXnTnEuRlNl(
f      l| o                     ^a
t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 449s2/s2centroids.cc::3118::
 In file included from ../src/s2/s2centroids.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'50
:
In file included from ../src/s2/s2point.h:  27449:
 | In file included from  ../src/s2/s2coder.h :e23x:
tIn file included from e/usr/local/clang/include/absl/status/status.hr:n67 :
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
aIn file included from t/usr/local/clang/include/absl/strings/cord.he: 94c:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hs:t31 :
c/usr/local/clang/include/absl/synchronization/mutex.hh:a552r:*64 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n552n | u l l   M a k e C h e c k O p S t r i n g (       \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.hb:a241s:e22_:i nnote: texpanded from macro 'absl_nonnull'e
rn  a241l | :#:dPeefriTnher eaabdsSly_nncohn*n ualbls l__Nnoonnnnuullll 
w      ,| 
                     ^      
|                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2contains_vertex_query.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2contains_vertex_query.h:22  :
241In file included from  | ../src/s2/s2point.h#:d25e:
fIn file included from i../src/s2/util/coding/coder.hn:e36 :
aIn file included from b../src/s2/base/casts.hs:l36_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h
:      454| :                     ^1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |      In file included from  s2/s2centroids.ccx:,18 :
xIn file included from ,../src/s2/s2centroids.h :c50o:
nIn file included from s../src/s2/s2point.ht: 27c:
hIn file included from a../src/s2/s2coder.hr:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h):
94      :
| In file included from                         ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/synchronization/mutex.h::22556:: 38:note:  expanded from macro 'absl_nonnull'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e556f | i n ev oaibds lL_oncoknSnluolwlL o_oNpo(nSnyunlclh
W      a| i                     ^t
Params* absl_nonnull waitp,In file included from  s2/s2contains_vertex_query.cci:n18t:
 In file included from f../src/s2/s2contains_vertex_query.hl:a22g:
sIn file included from )../src/s2/s2point.h;:
25      :
| In file included from                                      ^../src/s2/util/coding/coder.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/casts.h241::3622:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e455 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u455l | lA B_SNLo_nLnOuGl_lI
N      T| E                     ^R
NAL_DEFINE_MAKE_CHECKIn file included from _s2/s2centroids.ccO:P18_:
SIn file included from T../src/s2/s2centroids.hR:I50N:
GIn file included from _../src/s2/s2point.hE:X27T:
EIn file included from R../src/s2/s2coder.hN:(23d:
oIn file included from u/usr/local/clang/include/absl/status/status.hb:l67e:
)In file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 449/usr/local/clang/include/absl/strings/internal/cordz_info.h::3131::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'558
:35:   449warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 ex  t558e | r n  btoeomlp lLaotcek ScloonwsWti tchhDaera*d laibnsel(_MnuoHnonwu lalb sMla_kneoCnhneuclklO phSotwr,i
n      g| (                                  ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                              ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2centroids.cc:In file included from 18s2/s2contains_vertex_query.cc:
:In file included from 18../src/s2/s2centroids.h:
:In file included from 50../src/s2/s2contains_vertex_query.h:
:In file included from 22../src/s2/s2point.h:
:In file included from 27../src/s2/s2point.h:
:In file included from 25../src/s2/s2coder.h:
:In file included from 23../src/s2/util/coding/coder.h:
:In file included from 36/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/base/casts.h:
:In file included from 36/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/log/internal/check_impl.h:
:/usr/local/clang/include/absl/synchronization/mutex.h21::
559/usr/local/clang/include/absl/log/internal/check_op.h::46455:: 1:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h  :559450 | : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |              x ,   x ,   c o n s t  ccohnasrt*  Caobnsdli_tnioonnn*u lalb)s
l      _| n                        ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :c onote: nexpanded from macro 'absl_nonnull'd
,
        241|  |                                              ^#
de/usr/local/clang/include/absl/base/nullability.hf:i257n:e23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf i_nNeo nanbuslll_
n      u| l                     ^l
able _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21In file included from :
s2/s2centroids.ccIn file included from :/usr/local/clang/include/absl/log/check.h18::
37In file included from :
../src/s2/s2centroids.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h50::
21In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/log/internal/check_op.h27::
456In file included from :../src/s2/s2coder.h1::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :45629 | :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L94_:
LIn file included from O/usr/local/clang/include/absl/strings/internal/cordz_info.hG:_31I:
N/usr/local/clang/include/absl/synchronization/mutex.hT:E562R:N23A:L _warning: Dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
FINE  _562M | A K Ev_oCiHdE CLKo_cOkPS_lSoTwR(IMNuGH_oEwX TaEbRsNl(_cnhoanrn)u;l
l       | h^o
w,/usr/local/clang/include/absl/log/internal/check_op.h :c449o:n31s:t  note: Cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
ndi  t449i | o n *e xatbesrln_ ntuelmlpalbaltee  ccoonnds,t
       c| h                      ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #MdaekfeiCnhee cakbOsplS_tnroinnngu(l l   _\N
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2centroids.cce:f18i:
nIn file included from e../src/s2/s2centroids.h :a50b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                     ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2contains_vertex_query.cc::56218::
58In file included from :../src/s2/s2contains_vertex_query.h :22warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:25:
In file included from   ../src/s2/util/coding/coder.h562: | 36 :
 In file included from v../src/s2/base/casts.ho:i36d:
 In file included from L../src/s2/base/logging.ho:c21k:
SIn file included from l/usr/local/clang/include/absl/log/check.ho:w37(:
MIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hH:o21w:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b456s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
u/usr/local/clang/include/absl/log/internal/check_op.hl:l450 :h25o:w ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'c
on  s450t |   C o n d i txi,o nx*,  acbosnls_tn uclhlaarb*l ea bcsoln_dn,o
n      n| u                                                         ^l
l)/usr/local/clang/include/absl/base/nullability.h
:      257| :                        ^23
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'241
:22:   257 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2contains_vertex_query.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2contains_vertex_query.h::6722:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.h::2925:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/util/coding/coder.h::9436:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/base/casts.h::3136:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/base/logging.h::56521::
36In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  /usr/local/clang/include/absl/log/internal/check_op.h565: | 457 : 1v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Unl  o457c | kASBlSoLw_(LSOyGn_cIhNWTaEiRtNPAaLr_aDmEsF*I NaEb_sMlA_KnEu_lClHaEbClKe_ OwPa_iStTpR)I NAGB_SELX_TAETRTNR(IuBnUsTiEg_nCeOdL Dc;h
a      r| )                                   ^;

      | /usr/local/clang/include/absl/base/nullability.h^:
257:23/usr/local/clang/include/absl/log/internal/check_op.h:: 449:note: 31expanded from macro 'absl_nullable':
 note:   expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'257
 | #d  e449f | i n ee xatbesrln_ ntuelmlpalbaltee  _cNounlslta bclhea
r      *|                        ^a
bsl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2centroids.cc_:n18o:
nIn file included from n../src/s2/s2centroids.hu:l50l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2contains_vertex_query.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2contains_vertex_query.h::3122:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2point.h::57625::
49In file included from :../src/s2/util/coding/coder.h :36warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/casts.h:36:
In file included from   ../src/s2/base/logging.h576: | 21 :
 In file included from v/usr/local/clang/include/absl/log/check.ho:i37d:
 In file included from T/usr/local/clang/include/absl/log/internal/check_impl.hr:y21R:
e/usr/local/clang/include/absl/log/internal/check_op.hm:o457v:e1(:b awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
_/usr/local/clang/include/absl/log/internal/check_op.hi:n450t:e25r:n anote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
:P  e450r | T h r e a d Sxy,n cxh,*  caobnsslt_ ncohnanru*l la bss)l;_
n      o| n                                                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:)241
:      22| :                        ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from In file included from s2/s2contains_vertex_query.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2contains_vertex_query.h../src/s2/s2coder.h::2223:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2567:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::3629:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.h::3694:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/check.h::57837::
45In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:458:1:   578 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
void   458B | lAoBcSkL(_bLaOsGe__IiNnTtEeRrNnAaLl_:D:EPFeIrNTEh_rMeAaKdES_yCnHcEhC*K _aObPs_lS_TnRoInNnGu_lElX TsE)R;N
(      c| o                                            ^n
st/usr/local/clang/include/absl/base/nullability.h :s241t:d22::: snote: texpanded from macro 'absl_nonnull'r
in  g241& | )#;d
e      f| i^n
e /usr/local/clang/include/absl/log/internal/check_op.ha:b449s:l31_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
ull   449_ | N o nenxutlelr
n       | t                     ^e
mplate const chaIn file included from rs2/s2centroids.cc*: 18a:
bIn file included from s../src/s2/s2centroids.hl:_50n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.hM:a23k:
eIn file included from C/usr/local/clang/include/absl/status/status.hh:e67c:
kIn file included from O/usr/local/clang/include/absl/status/internal/status_internal.hp:S29t:
rIn file included from i/usr/local/clang/include/absl/strings/cord.hn:g94(:
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :\31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                              ^:
580:/usr/local/clang/include/absl/base/nullability.h34::241 :22warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  580   | 241  |  #bdaesfei_nien taebrsnla_ln:o:nPneurlTlh r_eNaodnSnyunlclh
*       | a                     ^b
sl_nullable WakeuIn file included from ps2/s2contains_vertex_query.cc(:
18      :
| In file included from                                  ^../src/s2/s2contains_vertex_query.h
:22:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h257::2523:
:In file included from  ../src/s2/util/coding/coder.h:note: 36expanded from macro 'absl_nullable':

In file included from ../src/s2/base/casts.h:  36257:
 | In file included from #../src/s2/base/logging.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l458a:b1l:e  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
ul/usr/local/clang/include/absl/log/internal/check_op.hl:a450b:l25e:
       | note:                       ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  450 |  In file included from  s2/s2centroids.cc : 18 :
 In file included from x../src/s2/s2centroids.h,: 50x:
,In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :c23h:
aIn file included from r/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                        ^/usr/local/clang/include/absl/synchronization/mutex.h
:581:/usr/local/clang/include/absl/base/nullability.h38::241 :22warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'absl_nonnull'
  581   | 241  |  # d e f ibnaes ea_bisnlt_enronnanlu:l:lP e_rNTohnrneualdlS
y      n| c                     ^h
* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2contains_vertex_query.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2contains_vertex_query.h:22  :
241In file included from  | ../src/s2/s2point.h#:d25e:
fIn file included from i../src/s2/util/coding/coder.hn:e36 :
aIn file included from b../src/s2/base/casts.hs:l36_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h
:      459| :                     ^1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEIn file included from Fs2/s2centroids.ccI:N18E:
_In file included from M../src/s2/s2centroids.hA:K50E:
_In file included from C../src/s2/s2point.hH:E27C:
KIn file included from _../src/s2/s2coder.hO:P23_:
SIn file included from T/usr/local/clang/include/absl/status/status.hR:I67N:
GIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hE:X29T:
EIn file included from R/usr/local/clang/include/absl/strings/cord.hN:(94c:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hs:t31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s585l::20::s twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ng_v  i585e | w & )v;o
i      d|  ^T
ra/usr/local/clang/include/absl/log/internal/check_op.hn:s449(:M31u:H onote: wexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
abs  l449_ | n o nenxutlelr nh otwe)m;p l a/t/e  ucsoends tf ocrh aCro*n daVbasrl-_>nMountneuxl lt rMaanksefCehre
c      k| O                   ^p
St/usr/local/clang/include/absl/base/nullability.hr:i241n:g22(:   note:  expanded from macro 'absl_nonnull'\

      |                                 ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from In file included from s2/s2contains_vertex_query.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2contains_vertex_query.h../src/s2/s2coder.h::2223:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2567:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::3629:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.h::3694:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/synchronization/mutex.h::37586:
:In file included from 43/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
459:1:   586warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 v/usr/local/clang/include/absl/log/internal/check_op.ho:i450d: 25F:e rnote: (expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
ase  _450i | n t e r n a lx:,: Pxe,r Tchornesatd Scyhnacrh**  aabbssll__nnoonnnnuullll)

            | |                                           ^                        ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.hIn file included from :s2/s2contains_vertex_query.cc27::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2contains_vertex_query.h23::
22In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2point.h67::
25In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/util/coding/coder.h29::
36In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/base/casts.h94::
36In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/base/logging.h31::
21:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/check.h590::3740:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/log/internal/check_op.h:460:  1590: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
xpli  c460i | tA BMSuLt_eLxO(Gc_oInNsTtE RvNoAlLa_tDiElFeI NMEu_tMeAxK*E _aCbHsElC_Kn_uOlPl_aSbTlReI N/G*_iEgXnToErReNd(*c/o)n s{t} 
c      h| a                                       ^r
* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257) | ;#
d      e| f^i
ne/usr/local/clang/include/absl/log/internal/check_op.h :a449b:s31l:_ nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
lab  l449e |   _ Neuxltlearbnl et
e      m| p                      ^l
ate const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MaIn file included from ks2/s2centroids.cce:C18h:
eIn file included from c../src/s2/s2centroids.hk:O50p:
SIn file included from t../src/s2/s2point.hr:i27n:
gIn file included from (../src/s2/s2coder.h : 23 :
\In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                              ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  241/usr/local/clang/include/absl/synchronization/mutex.h | :#624d:e68f:i nwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
absl_n  o624n | n u lelx p_lNiocnintu lMlu
t      e| x                     ^L
ock(In file included from Ms2/s2contains_vertex_query.ccu:t18e:
xIn file included from &../src/s2/s2contains_vertex_query.h :m22u:
 In file included from A../src/s2/s2point.hB:S25L:
_In file included from I../src/s2/util/coding/coder.hN:T36E:
RIn file included from N../src/s2/base/casts.hA:L36_:
AIn file included from T../src/s2/base/logging.hT:R21I:
BIn file included from U/usr/local/clang/include/absl/log/check.hT:E37_:
CIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hP:T21U:
R/usr/local/clang/include/absl/log/internal/check_op.hE:D462_:B24Y:( twarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
s)  )462
 |        |                                                                     ^~~~ 
 const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'635
:29:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e635  | a b selx_pnloincniutl lM u_tNeoxnLnouclkl(
M      u| t                     ^e
x* absIn file included from ls2/s2contains_vertex_query.cc_:n18o:
nIn file included from n../src/s2/s2contains_vertex_query.hu:l22l:
 In file included from m../src/s2/s2point.hu:)25 :
AIn file included from B../src/s2/util/coding/coder.hS:L36_:
EIn file included from X../src/s2/base/casts.hC:L36U:
SIn file included from I../src/s2/base/logging.hV:E21_:
LIn file included from O/usr/local/clang/include/absl/log/check.hC:K37_:
FIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hN:C21T:
I/usr/local/clang/include/absl/log/internal/check_op.hO:N462(:m24u:) 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                            ^
/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_In file included from Ls2/s2centroids.ccO:G18_:
IIn file included from N../src/s2/s2centroids.hT:E50R:
NIn file included from A../src/s2/s2point.hL:_27D:
EIn file included from F../src/s2/s2coder.hI:N23E:
_In file included from M/usr/local/clang/include/absl/status/status.hA:K67E:
_In file included from C/usr/local/clang/include/absl/status/internal/status_internal.hH:E29C:
KIn file included from _/usr/local/clang/include/absl/strings/cord.hO:P94_:
SIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hR:I31N:
G/usr/local/clang/include/absl/synchronization/mutex.h_:E641X:T68E:R Nwarning: ('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h  :641450 | : 25 :e xnote: pexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
ic  i450t |   M u t e x Lxo,c kx(,M uctoenxs&t  mcuh aArB*S La_bIsNlT_EnRoNnAnLu_lAlT)T
R      I| B                        ^U
TE/usr/local/clang/include/absl/base/nullability.h_:C241A:P22T:U Rnote: Eexpanded from macro 'absl_nonnull'D
_B  Y241( | t#hdiesf)i,n
e       | a                                                                   ^~~~b
sl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2contains_vertex_query.cc:18:
In file included from   ../src/s2/s2contains_vertex_query.h649: | 22 :
 In file included from e../src/s2/s2point.hx:p25l:
iIn file included from c../src/s2/util/coding/coder.hi:t36 :
MIn file included from u../src/s2/base/casts.ht:e36x:
LIn file included from o../src/s2/base/logging.hc:k21(:
MIn file included from u/usr/local/clang/include/absl/log/check.ht:e37x:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n463o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
mu,   463c | oAnBsStL _CLoOnGd_iItNiToEnR&N AcLo_nDdE)F
I      N| E                            ^_
MA/usr/local/clang/include/absl/base/nullability.hK:E241_:C22H:E Cnote: Kexpanded from macro 'absl_nonnull'_
OP_S  T241R | I#NdGe_fEiXnTeE RaNb(s
l      _| n^o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l449l: 31_:N onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
ull  
449       | |                       ^ 
extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2centroids.cc21::
18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 464../src/s2/s2centroids.h::2650::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_670n:o74n:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
 _Non  n670u | l l 
e      x| p                     ^l
icitIn file included from  s2/s2contains_vertex_query.ccR:e18a:
dIn file included from e../src/s2/s2contains_vertex_query.hr:M22u:
tIn file included from e../src/s2/s2point.hx:L25o:
cIn file included from k../src/s2/util/coding/coder.h(:M36u:
tIn file included from e../src/s2/base/casts.hx:&36 :
mIn file included from u../src/s2/base/logging.h :A21B:
SIn file included from L/usr/local/clang/include/absl/log/check.h_:I37N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.hR:N21A:
L/usr/local/clang/include/absl/log/internal/check_op.h_:A463T:T1R:I Bwarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
E_C  A463P | TAUBRSELD__LBOYG(_tIhNiTsE)R)N
A      L| _                                                                         ^~~~D
EFINE_MAKE_CHECK_OP_STRING_In file included from Es2/s2closest_edge_query.ccX:/usr/local/clang/include/absl/synchronization/mutex.hT18:E:
678RIn file included from :N../src/s2/s2closest_edge_query.h35(::
30       :
warning: | In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]^../src/s2/s1angle.h

:28/usr/local/clang/include/absl/log/internal/check_op.h  :
:678In file included from 450 | ../src/s2/s2point.h: :25 27:e:
 xIn file included from note: pexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'../src/s2/s2coder.hl
:i23  c:
450iIn file included from  | t/usr/local/clang/include/absl/status/status.h   :R 67e :
a In file included from d e/usr/local/clang/include/absl/status/internal/status_internal.hxr:,M29 u:
xtIn file included from ,e/usr/local/clang/include/absl/strings/cord.h x:cL86oo:
ncskt(/usr/local/clang/include/absl/strings/cord_analysis.h M:cu32ht:ae47rx:**   warning: aabtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bs
sll__nnoo   nn32nn | uulslll i)mz
ue      )_| t                          ^GAe
BtS/usr/local/clang/include/absl/base/nullability.hEL:_s241St:iHm22aAt:R eEnote: dDexpanded from macro 'absl_nonnull'M_
eL  mOo241Cr | Ky#_dUFesUfaNgiCenT(ecI oOanNbs(stml u_C)on
ro      dnR| en                                  ^pu
*l l/usr/local/clang/include/absl/base/nullability.ha :_b241sN:lo_22nn:on nunote: nlexpanded from macro 'absl_nonnull'ul
l
  l       241r| e |                      ^p#
)d;e
f      i| n                                              ^e
 abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n uIn file included from note: ls2/s2contains_vertex_query.ccexpanded from macro 'absl_nonnull'l: 
18_:
N  In file included from o241../src/s2/s2contains_vertex_query.hn | :n#22ud:
elIn file included from fl../src/s2/s2point.hi
:n      e25|  :
                     ^aIn file included from 
b../src/s2/util/coding/coder.hs:l36_:
nIn file included from o../src/s2/base/casts.hn:n36u:
lIn file included from l../src/s2/base/logging.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21In file included from                      ^:
s2/s2centroids.cc/usr/local/clang/include/absl/log/internal/check_op.h
::18465:
:In file included from 1../src/s2/s2centroids.h:: 50:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h  :46523 | :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
LIn file included from O/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from G:s2/s2closest_edge_query.cc_29:I:
18NIn file included from :
T/usr/local/clang/include/absl/strings/cord.hIn file included from E:../src/s2/s2closest_edge_query.hR94:N:
30AIn file included from :
L/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from _:../src/s2/s1angle.hD31:E:
28F/usr/local/clang/include/absl/synchronization/mutex.h:
I:NIn file included from 681E../src/s2/s2point.h:_:74M27:A:
 KIn file included from Ewarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]../src/s2/s2coder.hC
H:E23C:
  KIn file included from 681_/usr/local/clang/include/absl/status/status.h | O :P _67eSx:
TpRIn file included from lIi/usr/local/clang/include/absl/status/internal/status_internal.hNc:Gi_29tE :
XRTIn file included from eEa/usr/local/clang/include/absl/strings/cord.hRdN:e(r86cMo:
unt/usr/local/clang/include/absl/strings/cord_analysis.hset:x L50voo:cik49d(*:M u atbwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sxl
&_ nmo   un 50nAu | BlsSilzLe)__t;I 
NG      Te| E^Rt
NMA/usr/local/clang/include/absl/log/internal/check_op.hoL:_r449eA:TP31Tr:Re cnote: iIexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'Bs
eUM  Te449Em | _o C rAeyPxUTtsUeRargEneD (_tceBomYpn(lstath tiCeos )rc,od
nR      se| pt                                                                         ^~~~* 
 cahbasrl*_ naobnsnlu_lnlo nrneupl)l; 
M      a| k                                                ^e
/usr/local/clang/include/absl/synchronization/mutex.hC:/usr/local/clang/include/absl/base/nullability.hh689e::c24135k::O22 p:warning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] t
rnote: iexpanded from macro 'absl_nonnull'  n
689g |   (  241   | e# xd\pe
lf      ii| cn                              ^ie
t  /usr/local/clang/include/absl/base/nullability.haRb:se241al:_dn22eo:rn Mnnote: uutlexpanded from macro 'absl_nonnull'le
 x_  LN241oo | ncn#ukld(leM
fu      it| ne                     ^ex
 *a basbls_ln_onnonnunlull l_In file included from  Ns2/s2closest_edge_query.ccmo:un18,n:
 uIn file included from cl../src/s2/s2closest_edge_query.hol:n
s30      t:
|  In file included from                      ^C../src/s2/s1angle.h
o:n28d:
In file included from iIn file included from ts2/s2contains_vertex_query.cci../src/s2/s2point.h:o:18n27:
&:
In file included from  In file included from ../src/s2/s2contains_vertex_query.hc../src/s2/s2coder.h:o:22n23:
d:
In file included from )In file included from ../src/s2/s2point.h
/usr/local/clang/include/absl/status/status.h:      :25| 67:
                                  ^:
In file included from 
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h:36:29:
241:
In file included from :In file included from ../src/s2/base/casts.h22/usr/local/clang/include/absl/strings/cord.h:::36 86note: :
expanded from macro 'absl_nonnull':
In file included from 
/usr/local/clang/include/absl/strings/cord_analysis.h../src/s2/base/logging.h  ::2415621 | ::
#56In file included from d:/usr/local/clang/include/absl/log/check.he :fwarning: 37itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
n
In file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :   a21b56:
s/usr/local/clang/include/absl/log/internal/check_op.h | l:s_i465nz:eo66_n:tn  warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Gl
elt  E 465s_ | tNAoBinSmnLau_tlLelOd
GF      _a| I                     ^iN
rTSEhRaNrAeLM_eDmEoFrIyNUEs_aMgAeK(Ec_oCnHsEtC KC_oOrPd_RSeTpR*I NaGb_sElX_TnEoRnNn(ucloln srte pv)o;i
d      *|                                                         ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
);  
241       | | #                                                                 ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2centroids.ccn:u18l:
lIn file included from  ../src/s2/s2centroids.h_:N50o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2contains_vertex_query.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2contains_vertex_query.h::9422:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2point.h::3125:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/util/coding/coder.h::71036::
74In file included from :../src/s2/base/casts.h :36warning: :
In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37  :
710In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h : 21e:
x/usr/local/clang/include/absl/log/internal/check_op.hp:l465i:c1i:t  warning: Wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ite  r465M | uAtBeSxLL_oLcOkG(_MIuNtTeExR&N AmLu_ DAEBFSILN_EI_NMTAEKREN_ACLH_EACTKT_ROIPB_USTTER_ICNAGP_TEUXRTEEDR_NB(Yc(otnhsits )v)o
i      d| *                                                                         ^~~~ 
absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |     /usr/local/clang/include/absl/synchronization/mutex.h : 718x:,35 :x ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ons  t718  | c h aerx*p laibcsilt_ nWornintuelrlM)u
t      e| x                        ^L
oc/usr/local/clang/include/absl/base/nullability.hk:(241M:u22t:e xnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  ambus)l
_      n| o                                  ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from ../src/s2/base/casts.hs2/s2centroids.cc::3618:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2centroids.h::2150:
:
In file included from In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2point.hs2/s2closest_point_query.cc:::372718:
:
:
In file included from In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2coder.h../src/s2/s2closest_point_query.h:::212329:
:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hIn file included from /usr/local/clang/include/absl/status/status.h:../src/s2/s2closest_point_query_base.h:502:67:35:
1:
In file included from :In file included from /usr/local/clang/include/absl/status/internal/status_internal.h ../src/s2/s2cell_union.h::warning: 2929type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:

In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/flags/flag.h:  :9450240:
 | :
In file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/flags/commandlineflag.hB::S31163L:
_:/usr/local/clang/include/absl/synchronization/mutex.hL56:O:722G :_74warning: I:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N 
Twarning: E'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]R
N  A163L | _ C   H722bE | oC oK l_e OPxPap_lIriMsPceLiF(tr oWCmhr(ietcaekbrsM_luE:Qt:,e s=xt=L)roi
cn      kg(_| Mv^uit
eewx/usr/local/clang/include/absl/log/internal/check_op.h &:v 488am:lu32u :AeB ,Snote:  Lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's_
tIdN:  :T488EsR | tN r AiLni_gAn*lT TianRebIsBlU_T En_cooCnnAnPsTutUelxRlEp rD _eBcroYrn(ostrth )ci;hs
)a,      r
| *                                                             ^ | a
b                                                                         ^~~~s
l/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 n  a241m | e##d#eIfmipnle(  a b s l _ n o /usr/local/clang/include/absl/synchronization/mutex.hn :n 731u :l 35l :   _ warning: N type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o 
n n u\  l
731l       | 
|                                       ^ | 
e                     ^x
/usr/local/clang/include/absl/base/nullability.hp:l257i:c23i:t  note: Wexpanded from macro 'absl_nullable'r
it  e257r | M#udteefxiLnoec ka(bMsult_enxu*l laabbslle_ n_oNnunlullalb lmeu
,       | c                      ^o
nst ConditioIn file included from ns2/s2contains_vertex_query.cc&: 18c:
oIn file included from n../src/s2/s2contains_vertex_query.hd:)22
:
      In file included from | ../src/s2/s2point.h                                  ^:
In file included from 25/usr/local/clang/include/absl/base/nullability.hs2/s2closest_point_query.cc:
::In file included from 24118../src/s2/util/coding/coder.h::
:22In file included from 36:../src/s2/s2closest_point_query.h:
 :In file included from 29note: ../src/s2/base/casts.h:
expanded from macro 'absl_nonnull':In file included from 
36../src/s2/s2closest_point_query_base.h:
  :In file included from 24135../src/s2/base/logging.h | :
:#In file included from 21d../src/s2/s2cell_union.h:
e:In file included from f29/usr/local/clang/include/absl/log/check.hi:
n:In file included from e37/usr/local/clang/include/absl/flags/flag.h :
:aIn file included from 40b/usr/local/clang/include/absl/log/internal/check_impl.h:
s:/usr/local/clang/include/absl/flags/commandlineflag.hl21:_:
193n/usr/local/clang/include/absl/log/internal/check_op.h:o:27n502:n: u1warning: l:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l  
warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
  o193/usr/local/clang/include/absl/log/internal/check_op.hn | :n 489u lv:il47r
:t       u| note: a                     ^lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 

voi  d489  | R e a d ( v ociodn*s ta bTs1l&_ nvo1n,n ucloln sdts tT)2 &c ovn2s,t  c=o n0s;t
 In file included from       cs2/s2closest_cell_query.cc| h:                          ^a18
r:
*In file included from /usr/local/clang/include/absl/base/nullability.h ../src/s2/s2closest_cell_query.h:a:b24127s:l:
22_In file included from n:o../src/s2/s1chord_angle.h n:note: n31expanded from macro 'absl_nonnull'u:
l
In file included from l../src/s2/s2pointutil.h   :e241x27p | :
r#t../src/s2/util/math/matrix3x3.hed:xet276f): i5{n :e    warning:  atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] b
\s
l      _|   n                                              ^276o
 | n /usr/local/clang/include/absl/base/nullability.hn :u 241l :lS22 2:__ NCnote: oHexpanded from macro 'absl_nonnull'nE
nCuK  l_241lN | 
E#      (d| de                     ^fei
tn,e  VaTbysple_(n0o)n)n u<l<l  _"N oCnannu'ltl 
i      n| v                     ^e
rse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NEIn file included from 
s2/s2centroids.cc      :| 18                    ^:

In file included from ../src/s2/s2centroids.h:50/usr/local/clang/include/absl/log/check.h:
:In file included from 120../src/s2/s2point.h::327::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'CHECK_NE'23
:
In file included from /usr/local/clang/include/absl/status/status.h:  67120:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :A29B:
SIn file included from L/usr/local/clang/include/absl/strings/cord.h_:L94O:
GIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hI:N31T:
E/usr/local/clang/include/absl/synchronization/mutex.hR:N801A:L20_:C Hwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]CIn file included from 
Ks2/s2contains_vertex_query.cc_:N18E  :
_801In file included from I | ../src/s2/s2contains_vertex_query.hM :P 22LC:
(oIn file included from (n../src/s2/s2point.hdv:ia25tli:
1oIn file included from )n../src/s2/util/coding/coder.h,(: b36#o:
voIn file included from la ../src/s2/base/casts.h(l:*1a36b,s:
 lIn file included from (_../src/s2/base/logging.hvn:ao21nln:
2uIn file included from l)l/usr/local/clang/include/absl/log/check.h, : f37#u:
vnIn file included from ca)/usr/local/clang/include/absl/log/internal/check_impl.hl(2:v)o
i21d      :
*| /usr/local/clang/include/absl/log/internal/check_op.h   ^a:
b502s:/usr/local/clang/include/absl/log/internal/check_impl.hl1_::n51u l:warning: l3type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a:b
i l/usr/local/clang/include/absl/log/internal/check_op.hnote: i:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL't497y
_:u32n:   k n51note: o | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'w 
n )A,B
  S      497L|  |                    ^ _ 
iLnOl/usr/local/clang/include/absl/base/nullability.hGi:n_241eI :Nc22oT:nEs Rtnote: Neexpanded from macro 'absl_nonnull'Ax
Lp_  rC 241cHo | E#nCdsKte_ OcfPhia(rn*C heae bcasklb_s_NnlE_u,ln ol!a=n,nb luvleal ln 1_a,Nm oevna#ln#1Iu_mlpllt(
e        x |  t                      ^, 
   v a l In file included from 2 s2/s2centroids.cc, :  18 v:
 a In file included from l ../src/s2/s2centroids.h 2\:_
50t      :
e| In file included from x                               ^../src/s2/s2point.ht
:)27
/usr/local/clang/include/absl/base/nullability.h:
      :In file included from | 257../src/s2/s2coder.h  ^::
2323::
 /usr/local/clang/include/absl/log/internal/check_op.hIn file included from note: :/usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullable'68:
:6722:
  :In file included from 257 /usr/local/clang/include/absl/status/internal/status_internal.h | :#note: d29eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP':
f
iIn file included from n/usr/local/clang/include/absl/strings/cord.he:    94a68:
b | sIn file included from  l/usr/local/clang/include/absl/strings/internal/cordz_info.h_ :wn31hu:
illl/usr/local/clang/include/absl/synchronization/mutex.hea b:l(801ec: o_45nN:su tlwarning:  ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]ac
bhlae  
r801      * | |                        ^a 
 bCsoln_dniutIn file included from lis2/s2contains_vertex_query.cclo:na18(b:
blIn file included from oe../src/s2/s2contains_vertex_query.ho :alb 22s(l:
*_alIn file included from bo../src/s2/s2point.hsgl:__in25on:
ntnIn file included from eu../src/s2/util/coding/coder.hrl:nl36a :
lfIn file included from u_n../src/s2/base/casts.hcc):h(36ev:
coIn file included from ikd../src/s2/base/logging.h_*:o pa21b_s:
rlIn file included from e_/usr/local/clang/include/absl/log/check.hsn:uu37lllt:
 aIn file included from  b/usr/local/clang/include/absl/log/internal/check_impl.h i: l21 i:
 t/usr/local/clang/include/absl/log/internal/check_op.h y: _502u n: k1n o\w:n
 )      warning: ,| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
                     ^
      
| /usr/local/clang/include/absl/log/internal/check_op.h                                            ^:
498/usr/local/clang/include/absl/base/nullability.h::/usr/local/clang/include/absl/base/nullability.h35257:::289 23::note: 34 expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
note:  expanded from macro 'absl_nullable'note: 
  expanded from macro 'absl_nullability_unknown'498
   | 257  |    # 289d  | e #fd iienftn eiv n1a,eb s ailbn_tsnl uv_ln2l,u aclbllaoenb is_tlNi uctlyh_luaanbkrl*neo 
aw      nb|  s_l                      ^N_un
olnln_uulnls peexcpirftieexdt
)       | {                                 ^ 
                \In file included from 
s2/s2centroids.cc      :| 18                                  ^:

In file included from ../src/s2/s2centroids.h:/usr/local/clang/include/absl/base/nullability.h50::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
eIn file included from In file included from  s2/s2closest_cell_query.cc/usr/local/clang/include/absl/strings/cord.ha:b:s1894l:
_:
In file included from nIn file included from o../src/s2/s2closest_cell_query.hn/usr/local/clang/include/absl/strings/internal/cordz_info.hn::u27l31:
l:
In file included from  /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s1chord_angle.h_::N802o31n::
n19In file included from u:../src/s2/s2pointutil.hl :l27
warning: :
      type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]| ../src/s2/util/math/matrix3x3.h                     ^
:
276:  5802: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   ../src/s2/base/logging.h : 37 : 21 :  vnote: oexpanded from macro 'S2_CHECK_NE'i
d*    a37b | s#ld_enfuilnlea bSi2l_iCtHyE_CuKn_kNnEo wCnH EaCrKg_)N;E

            | |                   ^                    ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::289120::343::  note: note: expanded from macro 'absl_nullability_unknown'expanded from macro 'CHECK_NE'

  289   | 120# | d e fAiBnSeL _aLbOsGl__InNuTlElRaNbAiLl_iCtHyE_CuKn_kNnEo_wInM P_LN(u(lvla_lu1n)s,p e#cviafli1e,d 
(      v| a                                 ^l
2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
In file included from    s2/s2centroids.cc51: | 18 :
 In file included from A../src/s2/s2centroids.hB:S50L:
_In file included from L../src/s2/s2point.hO:G27_:
IIn file included from N../src/s2/s2coder.hT:E23R:
NIn file included from A/usr/local/clang/include/absl/status/status.hL:_67C:
HIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hC:K29_:
OIn file included from P/usr/local/clang/include/absl/strings/cord.h(:C94h:
eIn file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.hk:_31N:
E/usr/local/clang/include/absl/synchronization/mutex.h,: 814!:=20,:  vwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
1, v  a814l | 1 _ tCeoxntd,i tviaoln2(,b ovoall 2(_*taebxstl)_
n      o| n  ^n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 75f:u61n:c )note: (expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'T
* a   b75s | l _ nAuBlSlLa_bLiOlGi_tIyN_TuEnRkNnAoLw_nC)H,E
C      K| (                   ^:
:a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::i mnote: pexpanded from macro 'absl_nonnull'l
ic  i241t | _#cdaesfti<nceo nasbstl _cnhoanrn*u lalb s_lN_onnonnunlull
l      >| (                     ^ 
    \
      | In file included from                                                             ^s2/s2centroids.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2centroids.h::24150::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 814_:N42o:n nwarning: utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
l
      |                        ^814
 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2closest_point_query.cc
:      18| :
                     ^In file included from 
../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:35In file included from :
s2/s2centroids.ccIn file included from :../src/s2/s2cell_union.h18::
29In file included from :
../src/s2/s2centroids.hIn file included from :/usr/local/clang/include/absl/flags/flag.h50::
42In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h27::
30In file included from :
../src/s2/s2coder.h:/usr/local/clang/include/absl/base/call_once.h23::
52In file included from :/usr/local/clang/include/absl/status/status.h24::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94   :
52In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.hs:t31d:
:/usr/local/clang/include/absl/synchronization/mutex.h::a830t:o36m:i cwarning: <type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]u
int  38302 | _ t > *   a bbsolo_ln o(n*naublsll _CnoonntnruolllW ofrudn(c
)      (| T                       ^*
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
il  i241t | y#_duenfkinnoew na)b,s
l      _| n                                   ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l289l: 34_:N onote: nexpanded from macro 'absl_nullability_unknown'n
ul  l289
 |       #| d                     ^e
fine absl_In file included from ns2/s2closest_point_query.ccu:l18l:
aIn file included from b../src/s2/s2closest_point_query.hi:l29i:
tIn file included from y../src/s2/s2closest_point_query_base.h_:u35n:
kIn file included from n../src/s2/s2cell_union.ho:w29n:
 In file included from _/usr/local/clang/include/absl/flags/flag.hN:u42l:
lIn file included from _/usr/local/clang/include/absl/flags/internal/flag.hu:n30s:
p/usr/local/clang/include/absl/base/call_once.he:c53i:f22i:e dwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                 ^
   53 |     absl::once_flag* abIn file included from ss2/s2centroids.ccl:_18n:
oIn file included from n../src/s2/s2centroids.hn:u50l:
lIn file included from  ../src/s2/s2point.hf:l27a:
gIn file included from )../src/s2/s2coder.h;:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:note: 94expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31241:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d831e:f46i:n ewarning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
bsl  _831n | o n n u l l  t_yNpoennnaumlel 
a      b| s                     ^l
::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknIn file included from os2/s2closest_point_query.ccw:n18 :
_In file included from N../src/s2/s2closest_point_query.hu:l29l:
_In file included from u../src/s2/s2closest_point_query_base.hn:s35p:
eIn file included from c../src/s2/s2cell_union.hi:f29i:
eIn file included from d/usr/local/clang/include/absl/flags/flag.h
:      42| :
                                 ^In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend stdIn file included from :s2/s2centroids.cc::a18t:
oIn file included from m../src/s2/s2centroids.hi:c50<:
uIn file included from i../src/s2/s2point.hn:t273:
2In file included from _../src/s2/s2coder.ht:>23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94b:
aIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.he:_31i:
n/usr/local/clang/include/absl/synchronization/mutex.ht:e844r:n10a:l :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ont  r844o | l W o r d ( 
T      *|                                  ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 o  b241j | e#cdte,f
i      n| e         ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnulIn file included from ls2/s2closest_point_query.cc :_18N:
oIn file included from n../src/s2/s2closest_point_query.hn:u29l:
lIn file included from 
../src/s2/s2closest_point_query_base.h      :| 35                     ^:

In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from    s2/s2centroids.cc97: | 18 :
 In file included from  ../src/s2/s2centroids.h : 50 :
oIn file included from n../src/s2/s2point.hc:e27_:
fIn file included from l../src/s2/s2coder.ha:g23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94f:
lIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hg:)31;:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 845                 ^:
45: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'845
 |     241  |  # d ebfoionle  (aabbssll_:n:otnynpuel_li d_eNnotnintuyl<lT
>      :| :                     ^t
ype::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2centroids.ccs2/s2closest_point_query.cc::1818:
:
In file included from In file included from ../src/s2/s2centroids.h../src/s2/s2closest_point_query.h::5029:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2closest_point_query_base.h::2735:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2cell_union.h::2329:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/flags/flag.h::6742:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/flags/internal/flag.h::2930:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/call_once.h::94111:
:In file included from 40/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
850:16:   warning: 111type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
voi  d850  | L o w L e v ecloCnasltl OTn*c ea(basbls_ln:o:nonnuclel_ folbajge*c ta,b
s      l| _               ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :f lnote: aexpanded from macro 'absl_nonnull'g
,   C241a | l#ldaebflien&e&  afbns,l
_      n| o                                       ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _NoIn file included from ns2/s2centroids.ccn:u18l:
lIn file included from 
../src/s2/s2centroids.h      :| 50                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nIn file included from os2/s2contains_vertex_query.ccn:n18u:
lIn file included from l../src/s2/s2contains_vertex_query.h :m22e:
tIn file included from h../src/s2/s2point.ho:d25):
(In file included from )../src/s2/util/coding/coder.h
:      36| :
                                            ^In file included from 
../src/s2/base/casts.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/logging.h::2221::
 In file included from /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nonnull'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e503f:i1n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_  n503o | nAnBuSlLl_ L_ONGo_nInNuTlElR
N      A| L                     ^_
CHECK_OP_IMPL(Check_NE, !=)
      | ^In file included from 
s2/s2centroids.cc:18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 488../src/s2/s2centroids.h::3250::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'27
:
In file included from ../src/s2/s2coder.h:23  :
488In file included from  | /usr/local/clang/include/absl/status/status.h : 67i:
nIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:n94s:
tIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hx:p31r:
 /usr/local/clang/include/absl/synchronization/mutex.hc:o855n:s34t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r*   a855b | s l _enxupllliacbilte  Cnoanmdei#t#iIomnp(lc(o n s t   b o o l *   a b s l _ n o n n\u
l      l|                                 ^c
on/usr/local/clang/include/absl/base/nullability.hd:)257In file included from ;:
s2/s2closest_point_query.cc23      ::| 18                                  ^:

note: In file included from expanded from macro 'absl_nullable'../src/s2/s2closest_point_query.h/usr/local/clang/include/absl/base/nullability.h
::29241  :
:257In file included from 22 | ../src/s2/s2closest_point_query_base.h:#: d35enote: :
fexpanded from macro 'absl_nonnull'iIn file included from 
n../src/s2/s2cell_union.he:   29241a:
b | sIn file included from #l/usr/local/clang/include/absl/flags/flag.hd_e:nf42iu:
lnIn file included from le/usr/local/clang/include/absl/flags/internal/flag.ha :bal30eb s_:
Nlu_/usr/local/clang/include/absl/base/call_once.hnl:lo153anb:nlue41l
l:        _| Nwarning: o                      ^ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
n
ull
        153|  |                      ^ 
  In file included from  s2/s2contains_vertex_query.ccC:a18l:
lIn file included from O../src/s2/s2contains_vertex_query.hn:c22e:
IIn file included from m../src/s2/s2point.hp:l25(:
sIn file included from t../src/s2/util/coding/coder.hd::36::
aIn file included from t../src/s2/base/casts.ho:m36i:
cIn file included from <../src/s2/base/logging.hu:i21n:
tIn file included from 3/usr/local/clang/include/absl/log/check.h2:_37t:
>In file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
In file included from s/usr/local/clang/include/absl/log/internal/check_op.hs2/s2centroids.ccl::_50318n::
o1nIn file included from :n../src/s2/s2centroids.h u:warning: l50type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:

 In file included from c/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.ho::n48927t::
r47In file included from o:../src/s2/s2coder.hl :,23note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
      
In file included from | /usr/local/clang/include/absl/status/status.h                                        ^:
  67489:
 | /usr/local/clang/include/absl/base/nullability.h In file included from : /usr/local/clang/include/absl/status/internal/status_internal.h 241: : 2922 :
c:In file included from o /usr/local/clang/include/absl/strings/cord.hn:snote: t94expanded from macro 'absl_nonnull' :
T
In file included from 1/usr/local/clang/include/absl/strings/internal/cordz_info.h  &:241 31v | 1:
#,/usr/local/clang/include/absl/synchronization/mutex.hd :ec886ofn:is31tn:e   Twarning: a2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b&
s lv_  n2886,o |   ncn ounelsxlpt  l_icNhcoiantn ruClo*l n
da      ibt| sil                     ^o_
nn(ocnonnusltl  Te*x parbtselx_tn)o n{n u l l   o\b
j      )| 
                                              ^      
|                               ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2contains_vertex_query.cc
:18:
In file included from   ../src/s2/s2contains_vertex_query.h896: | 22 :
 In file included from e../src/s2/s2point.hx:p25l:
iIn file included from c../src/s2/util/coding/coder.hi:t36 :
CIn file included from o../src/s2/base/casts.hn:d36i:
tIn file included from i../src/s2/base/logging.ho:n21(:
cIn file included from o/usr/local/clang/include/absl/log/check.hn:s37t:
 In file included from T/usr/local/clang/include/absl/log/internal/check_impl.h*: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l503_:n1o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l /usr/local/clang/include/absl/log/internal/check_op.ho:b497j:)32
:       | note:                               ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

/usr/local/clang/include/absl/base/nullability.h:241  :49722 | :   note: iexpanded from macro 'absl_nonnull'n
li  n241e |  #cdoenfsitneex parb sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlu
l      l| a                     ^b
le name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | In file included from #s2/s2centroids.ccd:e18f:
iIn file included from n../src/s2/s2centroids.he: 50a:
bIn file included from s../src/s2/s2point.hl:_27n:
uIn file included from l../src/s2/s2coder.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/status/status.h :_67N:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:a29b:
lIn file included from e/usr/local/clang/include/absl/strings/cord.h
:      94| :
                      ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922In file included from :s2/s2contains_vertex_query.cc48::18 :
In file included from warning: In file included from ../src/s2/s2contains_vertex_query.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2closest_point_query.cc:
:2218:
:
In file included from In file included from   ../src/s2/s2point.h../src/s2/s2closest_point_query.h922:: | 2529 :
:
 In file included from sIn file included from t../src/s2/util/coding/coder.h../src/s2/s2closest_point_query_base.ha::t3635i:
:
cIn file included from In file included from  ../src/s2/base/casts.h../src/s2/s2cell_union.hb::o3629o:
:
lIn file included from In file included from  ../src/s2/base/logging.h/usr/local/clang/include/absl/flags/flag.hG::u2142a:
:
rIn file included from aIn file included from n/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/flags/internal/flag.ht::e3730e:
:
dIn file included from /usr/local/clang/include/absl/base/call_once.hE/usr/local/clang/include/absl/log/internal/check_impl.h:q:194u21:a:
l31/usr/local/clang/include/absl/log/internal/check_op.h(:c:o n503warning: s:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t1
 :C o  warning: n194type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d | i
itni/usr/local/clang/include/absl/log/internal/check_op.hlo:in498n*:e 35 a:sb tsnote: dl:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_:n
autlo  lm498aib | cl <e u  ia n ,t 
3i      2n| _t                                               ^t 
v>1*/usr/local/clang/include/absl/base/nullability.h, : ai257bn:st23l :_v n2note: oexpanded from macro 'absl_nullable'n,
n u  clo257ln |  #sCdto encfthiranorel* W aoabrsbdsl(l_
_nn      uo| ln                              ^ln
aubll/usr/local/clang/include/absl/base/nullability.hel:  241_eNx:up22lr:tl aenote: bxexpanded from macro 'absl_nonnull'lt
)e 
  {       241 |  |                       ^ # 
d e f i n e   a b In file included from s s2/s2centroids.ccl :_ 18 n\:
o
In file included from n      ../src/s2/s2centroids.hn| :u                                  ^50l
:
lIn file included from  /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h_::N24127:o:
22nIn file included from :n../src/s2/s2coder.h u:note: l23expanded from macro 'absl_nonnull'l:


In file included from       /usr/local/clang/include/absl/status/status.h  | :241                     ^67 | 
:
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.hIn file included from  :s2/s2closest_point_query.cca94:b:
18sIn file included from l:
/usr/local/clang/include/absl/strings/internal/cordz_info.h_In file included from :n../src/s2/s2closest_point_query.h31o::
n29/usr/local/clang/include/absl/synchronization/mutex.hn:
:uIn file included from 923l../src/s2/s2closest_point_query_base.hl: :_4835N:o:
 nIn file included from warning: n../src/s2/s2cell_union.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u:
l29l:

In file included from         /usr/local/clang/include/absl/flags/flag.h923| :                     ^ | 42
 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 195 : 16 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     195  |          o n c e _ fcloangs*t  aCbosnld_intoinonnu*l la bfslla_gn)u l{l
a      b| l               ^e
 b/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                                               ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel 
_      N| u                     ^l
lable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from In file included from s2/s2closest_point_query.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2closest_point_query.h../src/s2/s2coder.h::2923:
:
In file included from In file included from ../src/s2/s2closest_point_query_base.h/usr/local/clang/include/absl/status/status.h::3567:
:
In file included from In file included from ../src/s2/s2cell_union.h/usr/local/clang/include/absl/status/internal/status_internal.h::2929:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/strings/cord.h::4294:
:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::3031:
:
/usr/local/clang/include/absl/base/call_once.h/usr/local/clang/include/absl/synchronization/mutex.h::200948::4010::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

    200948 |  | v o ibdo oLlo w(L*eavbesllC_anlullOlnacbel(ea besvla:l:_o)n(cceo_nfslta gC*o nadbistli_onno*n naublsll _fnloangn,u lCla)l l=a bnluel&l&p tfrn;,

            | |          ^                                       ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257241::2322::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaubllle  __NNounlnlualbll
e      
|                            ^| 
                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   In file included from is2/s2contains_vertex_query.ccn:l18i:
nIn file included from e../src/s2/s2contains_vertex_query.h :v22o:
iIn file included from d../src/s2/s2point.h :R25e:
aIn file included from d../src/s2/util/coding/coder.hC:a36l:
lIn file included from b../src/s2/base/casts.ha:c36k:
(In file included from T../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h :c504a:l1l:b awarning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]k
) c  o504n | sAtB S{L
_      L| O                              ^G
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'C
HE  C241K | _#OdPe_fIiMnPeL (aCbhselc_kn_oLnEn,u l<l= )_
N      o| n^n
ull/usr/local/clang/include/absl/log/internal/check_op.h
:      488| :                     ^32
: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr In file included from cs2/s2centroids.cco:n18s:
tIn file included from  ../src/s2/s2centroids.hc:h50a:
rIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hn:a29m:
eIn file included from #/usr/local/clang/include/absl/strings/cord.h#:I94m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h(: 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 979 : 43 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       979  |   \ 
s      t| a                               ^t
ic/usr/local/clang/include/absl/base/nullability.h :b257o:o23l:  Anote: lexpanded from macro 'absl_nullable'w
ay  s257T | r#udee(fcionnes ta bCsoln_dniutliloanb*l ea b_sNlu_lnlualbllaeb
l      e| )                      ^ 
{ return trueIn file included from ;s2/s2contains_vertex_query.cc :}18
:
      In file included from | ../src/s2/s2contains_vertex_query.h                                          ^:
22:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::25725::
23In file included from :../src/s2/util/coding/coder.h :36note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/casts.h:36  :
257In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l504l:a1b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nu/usr/local/clang/include/absl/log/internal/check_op.hl:l489a:b47l:e 
      note: | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'                      ^

  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 In file included from 1033s2/s2contains_vertex_query.cc | : 18 :
vIn file included from o../src/s2/s2contains_vertex_query.hi:d22 :
WIn file included from a../src/s2/s2point.hi:t25(:
MIn file included from u../src/s2/util/coding/coder.ht:e36x:
*In file included from  ../src/s2/base/casts.ha:b36s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
mIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.h): 21{:

      /usr/local/clang/include/absl/log/internal/check_op.h| :                   ^504
:1: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
22: /usr/local/clang/include/absl/log/internal/check_op.h:note: 497expanded from macro 'absl_nonnull':
32:   241note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'#
defi  n497e |   a bisnll_innoen ncuolnls t_eNxopnrn ucloln
s      t|                       ^c
har* absl_nullable name#In file included from #s2/s2centroids.ccI:m18p:
lIn file included from (../src/s2/s2centroids.h : 50 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from \/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                               ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h257::3123:
: /usr/local/clang/include/absl/synchronization/mutex.h:note: 1050expanded from macro 'absl_nullable':
31:   257warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi n1050e |   a bbsolo_ln uWlaliatbWliet h_TNiumleloaubtl(eM
u      t| e                      ^x
* absl_noIn file included from ns2/s2contains_vertex_query.ccn:u18l:
lIn file included from  ../src/s2/s2contains_vertex_query.hm:u22,:
 In file included from a../src/s2/s2point.hb:s25l:
:In file included from :../src/s2/util/coding/coder.hD:u36r:
aIn file included from t../src/s2/base/casts.hi:o36n:
 In file included from t../src/s2/base/logging.hi:m21e:
oIn file included from u/usr/local/clang/include/absl/log/check.ht:)37 :
{In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                              ^:

/usr/local/clang/include/absl/log/internal/check_op.h:504/usr/local/clang/include/absl/base/nullability.h::1241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/log/internal/check_op.h:498  :24135 | :# dnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'f
ine   498a | b s l _ n o ninnutl lv 1_,N oinnntu lvl2
,       | c                     ^o
nst char* absl_nonnull exprIn file included from ts2/s2centroids.cce:x18t:
)In file included from  ../src/s2/s2centroids.h{: 50 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
\In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                  ^:

In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
1069:32  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin e1069  | a b sblo_onlo nWnauiltlW i_tNhoDnenaudllli
n      e| (                     ^M
utex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2centroids.cc::48818::
32In file included from :../src/s2/s2centroids.h :50note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h488: | 23 :
 In file included from i/usr/local/clang/include/absl/status/status.hn:l67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht:e94x:
pIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t1146 :c7h:a rwarning: *'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
absl _1146n | u l l a b l et hniasm)e)# #AIBmSpLl_(E X C L U S I V E _ L O C K _ F U N C T\I
O      N| (                               ^m
u)/usr/local/clang/include/absl/base/nullability.h
:      257| :      ^~~~23
: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullabl/usr/local/clang/include/absl/synchronization/mutex.he:
1153      :| 39                      ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   eIn file included from xs2/s2contains_vertex_query.ccp:l18i:
cIn file included from i../src/s2/s2contains_vertex_query.ht: 22R:
eIn file included from l../src/s2/s2point.he:a25s:
aIn file included from b../src/s2/util/coding/coder.hl:e36M:
uIn file included from t../src/s2/base/casts.he:x36L:
oIn file included from c../src/s2/base/logging.hk:(21M:
uIn file included from t/usr/local/clang/include/absl/log/check.he:x37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o505n:n1u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
u)/usr/local/clang/include/absl/log/internal/check_op.h
:      489| :                                      ^47
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
241:22:   489note:  | expanded from macro 'absl_nonnull' 
     241  |  #cdoenfsitn eT 1a&b svl1_,n ocnonnusltl  T_2N&o nvn2u,l lc
o      n| s                     ^t
 char* absl_nonnull exprtext) {     \
      | In file included from                                               ^s2/s2centroids.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2centroids.h241::5022:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_1158N:o53n:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l

      |                      ^
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166In file included from  | s2/s2contains_vertex_query.cc : 18e:
xIn file included from p../src/s2/s2contains_vertex_query.hl:i22c:
iIn file included from t../src/s2/s2point.h :R25e:
lIn file included from e../src/s2/util/coding/coder.ha:s36a:
bIn file included from l../src/s2/base/casts.he:M36u:
tIn file included from e../src/s2/base/logging.hx:L21o:
cIn file included from k/usr/local/clang/include/absl/log/check.h(:M37u:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hx:*21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s505l:_1n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll/usr/local/clang/include/absl/log/internal/check_op.h :m497u:,32 :c onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
t Co  n497d | i t iionnl&i nceo ncdo)n
s      t| e                                      ^x
pr/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innuel laabbslle_ nnoanmneu#l#lI m_pNlo(n n u l l 
        |                       ^ 
          \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullablIn file included from es2/s2centroids.cc
:      18| :
                      ^In file included from 
../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2contains_vertex_query.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2contains_vertex_query.h:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2point.h:
:In file included from 25/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/util/coding/coder.h:
:In file included from 36/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/base/casts.h:
:36/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1179../src/s2/base/logging.h::1021::
 In file included from /usr/local/clang/include/absl/log/check.hwarning: :37type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h1179: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.hM:u505t:e1x:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n498u:l35l:a bnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 mu  _498; | 
        |           ^ 
  /usr/local/clang/include/absl/base/nullability.hi:n257t: 23v:1 ,note:  expanded from macro 'absl_nullable'i
nt   257v | 2#,d ecfoinnset  acbhsalr_*n ualblsalb_lneo n_nNuullll aebxlper
t      e| x                      ^t
) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2contains_vertex_query.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2contains_vertex_query.h:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2point.h:
:25/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1241../src/s2/util/coding/coder.h::1236::
 In file included from ../src/s2/base/casts.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
:
In file included from ../src/s2/base/logging.h:21 :
1241In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from b/usr/local/clang/include/absl/log/internal/check_impl.ho:o21l:
 (/usr/local/clang/include/absl/log/internal/check_op.h*:a506b:s1l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l506  | fAuBnScL)_(LTO*G _aIbNsTlE_RnNuAlLl_aCbHiElCiKt_yO_Pu_nIkMnPoLw(nC)h,e
c      k| _           ^G
E,/usr/local/clang/include/absl/base/nullability.h :>241=:)22
:       | note: ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/log/internal/check_op.h241: | 488#:d32e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 ab  s488l | _ n oinnnluilnle  _cNoonnsntuelxlp
r       | c                     ^o
nst chIn file included from as2/s2centroids.ccr:*18 :
aIn file included from b../src/s2/s2centroids.hs:l50_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23n:
aIn file included from m/usr/local/clang/include/absl/status/status.he:#67#:
IIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.hp:l29(:
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1241 : 34 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]\

      |                                ^ 
1241 |  /usr/local/clang/include/absl/base/nullability.h : 257 :b23o:o lnote:  expanded from macro 'absl_nullable'(
*a  b257s | l#_dneofninnuel la bfsuln_cn)u(lTl*a balbes l__Nnuullllaabbliel
i      t| y                      ^_
unknown),
      |                                  ^In file included from 
s2/s2contains_vertex_query.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289../src/s2/s2contains_vertex_query.h::3422::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nullability_unknown'25
:
In file included from ../src/s2/util/coding/coder.h  :28936 | :
#In file included from d../src/s2/base/casts.he:f36i:
nIn file included from e../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21i:
l/usr/local/clang/include/absl/log/internal/check_op.hi:t506y:_1u:n kwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn/usr/local/clang/include/absl/log/internal/check_op.h :_489N:u47l:l _note: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
spec  i489f | i e d 
        |                                   ^c
onst T1& v1, const T2& v2,In file included from  s2/s2centroids.ccc:o18n:
sIn file included from t../src/s2/s2centroids.h :c50h:
aIn file included from r../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.he:x29p:
rIn file included from t/usr/local/clang/include/absl/strings/cord.he:x94t:
)In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h{: 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1242\:
44      :|                                                ^
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:  1242 | note:  expanded from macro 'absl_nonnull' 
    t241y | p#edneafmien ea basbls:l:_tnyopnen_uildle n_tNiotnyn<uTl>l:
:      t| y                     ^p
e* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2centroids.cc::2118:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2centroids.h::50650::
1In file included from :../src/s2/s2point.h :27warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 497/usr/local/clang/include/absl/status/status.h::3267::
 In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:  94497:
 | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :i31n:
l/usr/local/clang/include/absl/synchronization/mutex.hi:n1249e: 8c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
exp r1249  | c o n s tT *c haabrs*l _anbosnln_unlull loabbjleec tn,a
m      e| #       ^#
Im/usr/local/clang/include/absl/base/nullability.hp:l241(: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                               ^n
on/usr/local/clang/include/absl/base/nullability.hn:u257l:l23 :_ Nnote: oexpanded from macro 'absl_nullable'n
nu  l257l | 
#      d| e                     ^f
ine absl_nullable _NIn file included from us2/s2centroids.ccl:l18a:
bIn file included from l../src/s2/s2centroids.he:
50      :
| In file included from                       ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2contains_vertex_query.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h18::
29In file included from :
../src/s2/s2contains_vertex_query.hIn file included from :/usr/local/clang/include/absl/strings/cord.h22::
94In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h25::
31In file included from :
../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/synchronization/mutex.h36::
1250In file included from :../src/s2/base/casts.h43::36 :
In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/log/check.h: 371250:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
b/usr/local/clang/include/absl/log/internal/check_op.ho:o506l: 1(:a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::/usr/local/clang/include/absl/log/internal/check_op.ht:y498p:e35_:i dnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
tit  y498< | T > : : t y pien:t: *v 1a,b siln_tn ovn2n,u lclo nmsett hcohda)r(*) )a
b      s| l                                          ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  enote: xexpanded from macro 'absl_nonnull'p
rt  e241x | t#)d e{f i n e   a b s l _ n o n n u l l  \_
N      o| n                                  ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     In file included from cs2/s2contains_vertex_query.cco:n18s:
tIn file included from  ../src/s2/s2contains_vertex_query.hc:h22a:
rIn file included from *../src/s2/s2point.h :a25b:
sIn file included from l../src/s2/util/coding/coder.h_:n36o:
nIn file included from n../src/s2/base/casts.hu:l36l:
 In file included from m../src/s2/base/logging.hs:g21,:
 In file included from c/usr/local/clang/include/absl/log/check.ho:n37s:
tIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hv:o21i:
d/usr/local/clang/include/absl/log/internal/check_op.h*: 507a:b1s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l507l |  AcBvS)L)_;L
O      G| _                                              ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Cnote: Hexpanded from macro 'absl_nonnull'E
CK  _241O | P#_dIeMfPiLn(eC haebcskl__GnTo,n n>u)l
l       | _^N
on/usr/local/clang/include/absl/log/internal/check_op.hn:u488l:l32
:       | note:                      ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:35:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:35:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullIn file included from as2/s2centroids.ccb:l18e:
 In file included from C../src/s2/s2centroids.hh:e50c:
kIn file included from s../src/s2/s2point.ht:r27c:
mIn file included from p../src/s2/s2coder.ht:r23u:
eIn file included from I/usr/local/clang/include/absl/status/status.hm:p67l:
(In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29            ^:

/usr/local/clang/include/absl/strings/cord.h:109/usr/local/clang/include/absl/base/nullability.h::53257:: 23:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nullable'
  257   | 109# | dveofiidn eC oapbysClo_rnduTlolSatbrlien g_(Ncuolnlsatb lCeo
r      d| &                      ^ 
src, stIn file included from ds2/s2contains_vertex_query.cc:::18s:
tIn file included from r../src/s2/s2contains_vertex_query.hi:n22g:
*In file included from  ../src/s2/s2point.ha:b25s:
lIn file included from _../src/s2/util/coding/coder.hn:o36n:
nIn file included from u../src/s2/base/casts.hl:l36 :
dIn file included from s../src/s2/base/logging.ht:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                                    ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:/usr/local/clang/include/absl/base/nullability.h17::241 :22warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  512 |    241  |  # dceofnisnte  cahbasrl*_ naobnsnlu_lnlu l_lNaobnlneu lsl1
,       | c                     ^o
nst char* absl_nullable s2,
      |                 ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2centroids.cc::25718::
23In file included from :../src/s2/s2centroids.h :50note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2point.h:27  :
257In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.hu:l110l:a55b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Null  a110b | lveo
i      d|                        ^A
ppendCordTIn file included from os2/s2contains_vertex_query.ccS:t18r:
iIn file included from n../src/s2/s2contains_vertex_query.hg:(22c:
oIn file included from n../src/s2/s2point.hs:t25 :
CIn file included from o../src/s2/util/coding/coder.hr:d36&:
 In file included from s../src/s2/base/casts.hr:c36,:
 In file included from s../src/s2/base/logging.ht:d21::
:In file included from s/usr/local/clang/include/absl/log/check.ht:r37i:
nIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.h*: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l512_:n47o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l d  s512t | ) ; 
        | c                                                      ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  asb1s,l _cnoonnsntu lclh a_rN*o nanbuslll_
n      u| l                     ^l
able s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      | In file included from                                               ^s2/s2centroids.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2centroids.h::2350::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nullable':
27:
In file included from   ../src/s2/s2coder.h257: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l/usr/local/clang/include/absl/strings/cord.h_:n425u:l62l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 _Nul  l425a | b l ef
r      i| e                      ^n
d void In file included from Cs2/s2contains_vertex_query.cco:p18y:
CIn file included from o../src/s2/s2contains_vertex_query.hr:d22T:
oIn file included from S../src/s2/s2point.ht:r25i:
nIn file included from g../src/s2/util/coding/coder.h(:c36o:
nIn file included from s../src/s2/base/casts.ht: 36C:
oIn file included from r../src/s2/base/logging.hd:&21 :
sIn file included from r/usr/local/clang/include/absl/log/check.hc:,37 :
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hd::21::
s/usr/local/clang/include/absl/log/internal/check_op.ht:r516i:n17g:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl  _516n | o n n u lclo ndsstt )c;h
a      r| *                                                             ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 e  x241p | r#tdeexfti)n;e
       a| b                ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from In file included from ../src/s2/s2point.hs2/s2contains_vertex_query.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2contains_vertex_query.h::2322:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6725:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/util/coding/coder.h::2936:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/casts.h::43736::
47In file included from :../src/s2/base/logging.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h437: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 517 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      517  |  c o n s t   c h a r *   a b s l _sntudl:l:asbtlrei nCgh*e cakbsstlr_cnaosnencumlplt rdusetI)m;p
l      (| 
                                              ^      
|             ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22257:: 23:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nullable'
  241   | 257# | d#edfeifnien ea basbls_ln_onnunlullalb l_eN o_nNnuulllla
b      l| e                     ^

      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nulIn file included from ls2/s2centroids.cca:b18l:
eIn file included from  ../src/s2/s2centroids.hs:150,:
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from  ../src/s2/s2coder.hc:h23a:
rIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
l/usr/local/clang/include/absl/strings/cord.hl:a480b:l39e:  swarning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                 ^  
480 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23u:s inote: nexpanded from macro 'absl_nullable'g
 p  o257i | n#tdeerf i=n ec oanbsstl _vnaullulea_btlyep e_*N ualblsalb_lneo
n      n| u                      ^l
l;
      |                                       ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2contains_vertex_query.cc::24118::
22In file included from :../src/s2/s2contains_vertex_query.h :22note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:25  :
241In file included from  | ../src/s2/util/coding/coder.h#:d36e:
fIn file included from i../src/s2/base/casts.hn:e36 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :_21N:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n518u:l47l:
       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NuIn file included from ls2/s2centroids.ccl:a18b:
lIn file included from e../src/s2/s2centroids.h
:      50| :
                      ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2contains_vertex_query.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2contains_vertex_query.h:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2point.h:
:25/usr/local/clang/include/absl/strings/cord.h:
:In file included from 501../src/s2/util/coding/coder.h::5236::
 In file included from ../src/s2/base/casts.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
:
In file included from ../src/s2/base/logging.h:21:
  In file included from 501/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.he:x21p:
l/usr/local/clang/include/absl/log/internal/check_op.hi:c519i:t17 :C hwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
kI  t519e | r a t o rc(ocnosrtd _cihnatre*r naabls:l:_CnoorndnRuelpl*  eaxbpsrlt_enxotn)n;u
l      l|                  ^t
re/usr/local/clang/include/absl/base/nullability.he:)241;:
22      :|                                                     ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21In file included from :
s2/s2centroids.ccIn file included from :/usr/local/clang/include/absl/log/check.h18::
37In file included from :
../src/s2/s2centroids.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h50::
21In file included from :
../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h::27520:
:In file included from 13../src/s2/s2coder.h:: 23:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h
:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h520: | 29c:
o/usr/local/clang/include/absl/strings/cord.hn:s504t: 40c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s504l | _ n u l leaxbpllei cCihte cCkhsutnrkcIatseercamtpofra(lcsoenIsmtp lC(o
r      d| *            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   c257o | r#dd)e;f
i      n| e                                       ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241_ | N#udlelfaibnlee 
      a| b                      ^s
l_nonIn file included from ns2/s2contains_vertex_query.ccu:l18l:
 In file included from _../src/s2/s2contains_vertex_query.hN:o22n:
nIn file included from u../src/s2/s2point.hl:l25
:
      In file included from | ../src/s2/util/coding/coder.h                     ^:
36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2centroids.cc:  18521:
 | In file included from  ../src/s2/s2centroids.h : 50 :
cIn file included from o../src/s2/s2point.hn:s27t:
 In file included from c../src/s2/s2coder.hh:a23r:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.ha:b507l:e43 :s 1warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con  s507t |   c h a rv*o iadb sIln_intuTlrleaeb(lceo rsd2_,i
n      t| e                ^r
na/usr/local/clang/include/absl/base/nullability.hl::257::C23o:r dnote: Rexpanded from macro 'absl_nullable'e
p*   257a | b#sdle_fnionnen ualbls lt_rneuel)l;a
b      l| e                                          ^ 
_N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #defiIn file included from ns2/s2contains_vertex_query.cce: 18a:
bIn file included from s../src/s2/s2contains_vertex_query.hl:_22n:
oIn file included from n../src/s2/s2point.hn:u25l:
lIn file included from  ../src/s2/util/coding/coder.h_:N36o:
nIn file included from n../src/s2/base/casts.hu:l36l:

In file included from       ../src/s2/base/logging.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* In file included from as2/s2centroids.ccb:s18l:
_In file included from n../src/s2/s2centroids.hu:l50l:
aIn file included from b../src/s2/s2point.hl:e27 :
sIn file included from 2../src/s2/s2coder.h,:
23      :
| In file included from                                               ^/usr/local/clang/include/absl/status/status.h
:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/status/internal/status_internal.h::2329::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nullable'525
:35:   257 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin  e525  | a b s l _anbuslll:a:bcloer d__Niunltlearbnlael
:      :| C                      ^o
rdRepIn file included from *s2/s2contains_vertex_query.cc :a18b:
sIn file included from l../src/s2/s2contains_vertex_query.h_:n22u:
lIn file included from l../src/s2/s2point.ha:b25l:
eIn file included from  ../src/s2/util/coding/coder.hc:u36r:
rIn file included from e../src/s2/base/casts.hn:t36_:
lIn file included from e../src/s2/base/logging.ha:f21_:
 In file included from =/usr/local/clang/include/absl/log/check.h :n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hp:t21r:
;/usr/local/clang/include/absl/log/internal/check_op.h
:      522| :                                  ^17
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
:23:   522 | note:  expanded from macro 'absl_nullable' 
    c257o | n#sdte fcihnaer *a basbls_ln_unlolnanbullel  _eNxuplrltaebxlte)
;      
|                             ^| 
                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_In file included from ns2/s2convex_hull_query.cco:n26n:
uIn file included from l../src/s2/s2convex_hull_query.hl: 25r:
eIn file included from p../src/s2/s2cap.h,: 30M:
eIn file included from t../src/s2/s1angle.hh:o28d:
IIn file included from d../src/s2/s2point.he:n27t:
iIn file included from f../src/s2/s2coder.hi:e23r:
 In file included from m/usr/local/clang/include/absl/status/status.he:t67h:
oIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                              ^:
82:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::24123::
22In file included from :/usr/local/clang/include/absl/crc/crc32c.h :32note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_format.h:84  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/str_format/bind.h#:d29e:
fi/usr/local/clang/include/absl/strings/internal/str_format/parser.hn:e227 :a11b:s lwarning: _'enable_if' is a clang extension [-Wgcc-compat]n
onnu  l227l |   _ N o n n u l l 
       e| n                     ^a
ble_iIn file included from fs2/s2closest_edge_query.cc(:s18In file included from t:
s2/s2centroids.ccrIn file included from :_../src/s2/s2closest_edge_query.h18f::
o30In file included from r:
../src/s2/s2centroids.hmIn file included from :a../src/s2/s1angle.h50t::
_28In file included from i:
../src/s2/s2point.hnIn file included from :t../src/s2/s2point.h27e::
r27In file included from n:
../src/s2/s2coder.haIn file included from :l../src/s2/s2coder.h23:::
:23In file included from E:
/usr/local/clang/include/absl/status/status.hnIn file included from :s/usr/local/clang/include/absl/status/status.h67u::
r67In file included from e:
C/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from o:/usr/local/clang/include/absl/status/internal/status_internal.hn29s::
t29/usr/local/clang/include/absl/strings/cord.he:
:xIn file included from 972p/usr/local/clang/include/absl/strings/cord.h:r:(3194f::
o In file included from rwarning: /usr/local/clang/include/absl/strings/internal/cordz_info.hmtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:a
31t:
)  ,972
 | /usr/local/clang/include/absl/synchronization/mutex.h       :|            ^489 
: 14v:o i/usr/local/clang/include/absl/strings/internal/str_format/parser.hwarning: d: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]229E
:m11p:l awarning: c'enable_if' is a clang extension [-Wgcc-compat]  e
T489r |    e229e  | (  C  o  r  dv oRi ed  p (** a  abebsnlsa_lbn_ulnleol_nainbful(els lit nrrv_aefrpoi,ra mncato)t(nv_ositin tdIe*nr lnaibasnlle_:Dn:auVtlaalla&ib dipFlaoirtryem_nauttn,Ik
mn      po| wl                              ^n<)
C,./usr/local/clang/include/absl/base/nullability.h
.:      .241| >             ^:(
22f:o r/usr/local/clang/include/absl/base/nullability.hnote: mexpanded from macro 'absl_nonnull':a
257t  :)241,23 | 
#:      d | e          ^note: f
expanded from macro 'absl_nullable'i
ne   257a | b#sdle_fnionnen ualbls l__Nnounlnlualbll
e       | _                     ^N
ullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from In file included from ../src/s2/s2closest_edge_query.hs2/s2centroids.cc::3018:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2centroids.h::2850:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2727:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2coder.h::2323:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/status.h::6767:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/status/internal/status_internal.h::2929:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::97894::
36In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :warning: 31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/synchronization/mutex.h:489:  45978: |   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
 vo  i489d |   C o m m i tvToriede ((c*oanbsstl _CnourldlRaebpl*e  aibnsvla_rniualnlta)b(lveo iodl*d _arbespl,_
n      u| l                                   ^l
ab/usr/local/clang/include/absl/base/nullability.hi:l257i:t23y:_ unote: nexpanded from macro 'absl_nullable'k
no  w257n | )#,d
e      f| i                                            ^n
e /usr/local/clang/include/absl/base/nullability.ha:b289s:l34_:n unote: lexpanded from macro 'absl_nullability_unknown'l
abl  e289  | _#Nduelflianbel ea
b      s| l                      ^_
nullabilitIn file included from ys2/s2centroids.cc_:u18n:
kIn file included from n../src/s2/s2centroids.ho:w50n:
 In file included from _../src/s2/s2point.hN:u27l:
lIn file included from _../src/s2/s2coder.hu:n23s:
pIn file included from e/usr/local/clang/include/absl/status/status.hc:i67f:
iIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hd:
29      :
| /usr/local/clang/include/absl/strings/cord.h                                 ^:
979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |      In file included from  s2/s2closest_edge_query.cc : 18 :
 In file included from  ../src/s2/s2closest_edge_query.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from C../src/s2/s2point.ho:r27d:
RIn file included from e../src/s2/s2coder.hp:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :r94e:
pIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t490 :C13o:r dwarning: ztype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]U
pda  t490e | S c o p e &  vsociodp*e ,a
b      s| l                             ^_
nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22i:l inote: texpanded from macro 'absl_nonnull'y
_u  n241k | n#odwenf ianreg )a;b
s      l| _            ^n
on/usr/local/clang/include/absl/base/nullability.hn:u289l:l34 :_ Nnote: oexpanded from macro 'absl_nullability_unknown'n
nu  l289l | 
#      d| e                     ^f
ine absl_nullabiliIn file included from ts2/s2centroids.ccy:_18u:
nIn file included from k../src/s2/s2centroids.hn:o50w:
nIn file included from  ../src/s2/s2point.h_:N27u:
lIn file included from l../src/s2/s2coder.h_:u23n:
sIn file included from p/usr/local/clang/include/absl/status/status.he:c67i:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.he:d29
:
      /usr/local/clang/include/absl/strings/cord.h| :                                 ^982
:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     voiIn file included from ds2/s2closest_edge_query.cc :A18p:
pIn file included from e../src/s2/s2closest_edge_query.hn:d30T:
rIn file included from e../src/s2/s1angle.he:T28o:
IIn file included from n../src/s2/s2point.hl:i27n:
eIn file included from d../src/s2/s2coder.h(:C23o:
rIn file included from d/usr/local/clang/include/absl/status/status.hR:e67p:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
t/usr/local/clang/include/absl/synchronization/mutex.hr:e499e:,35
:       | warning:                                       ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :49922 | :  In file included from  note: s2/s2convex_hull_query.ccvexpanded from macro 'absl_nonnull':o
26i  :
d241In file included from   | ../src/s2/s2convex_hull_query.hE#:nd25ae:
bflIn file included from ei../src/s2/s2cap.hDn:ee30b :
uagIn file included from bL../src/s2/s1angle.hso:lg28_(:
cnIn file included from ../src/s2/s2point.h:27:
In file included from oon../src/s2/s2coder.hns:nt23 u:
clhIn file included from alr/usr/local/clang/include/absl/status/status.h* : _67aN:
boIn file included from snl/usr/local/clang/include/absl/status/internal/status_internal.hn_:un29lu:
lllIn file included from 
a/usr/local/clang/include/absl/strings/cord.hb      l:| e82                     ^ :

nIn file included from a/usr/local/clang/include/absl/crc/internal/crc_cord_state.hm:e23):
;In file included from 
/usr/local/clang/include/absl/crc/crc32c.h      :| 32                                  ^:

In file included from In file included from /usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/base/nullability.hs2/s2centroids.cc:::8425718:
::
/usr/local/clang/include/absl/strings/internal/str_format/bind.h23In file included from ::../src/s2/s2centroids.h143 ::note: 5011expanded from macro 'absl_nullable':
:
In file included from  ../src/s2/s2point.h  warning: :'enable_if' is a clang extension [-Wgcc-compat]25727
 | :
#In file included from d../src/s2/s2coder.h  e:143f23 | i:
 nIn file included from  e/usr/local/clang/include/absl/status/status.h  : a67 b:
 sIn file included from  l/usr/local/clang/include/absl/status/internal/status_internal.h _: n29 u:
el/usr/local/clang/include/absl/strings/cord.hnl:aa984bb:ll36ee:_  i_warning: fNtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](u
sltlr  a_984fb | lo er 
m a       tv| _o                      ^iin
dt eArpnpaeln:d:TErneseuTroeTCroenes(tCeoxrpdrR(esp)*,  a"bcsoln_sntoenxnpurl lt rtarpe"e),, 
M      e| t          ^h
oIn file included from ds2/s2closest_edge_query.ccI:d18e:
nIn file included from t../src/s2/s2closest_edge_query.hi:f30i:
eIn file included from r../src/s2/s1angle.h :m28e:
tIn file included from h../src/s2/s2point.ho:d27):
;In file included from 
../src/s2/s2coder.h      :| 23                                   ^:

In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/internal/str_format/bind.h::: 29note: 149expanded from macro 'absl_nonnull':
:
In file included from 22  /usr/local/clang/include/absl/strings/cord.h:241:  | 94warning: #'enable_if' is a clang extension [-Wgcc-compat]:
d
In file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hf  :i149n31 | e :
  a/usr/local/clang/include/absl/synchronization/mutex.h b: s l549 _:_n40_o:an tntwarning: urltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ilb
 u_tN  eo_549n_n | ( u (lseltna
at      bi| lc                     ^e 
_viofi(ds tIrn_cfroermIn file included from mes2/s2centroids.ccan:tt18_S:
yiIn file included from nn../src/s2/s2centroids.hcth:eS50er:
mn(In file included from aM../src/s2/s2point.hlu::t27:e:
ExIn file included from n*../src/s2/s2coder.hs :ua23rb:
esIn file included from lC/usr/local/clang/include/absl/status/status.h_on:onn67sn:
tuIn file included from lel/usr/local/clang/include/absl/status/internal/status_internal.hx :pm29ru:
(/usr/local/clang/include/absl/strings/cord.h,s
:)      985,| :
                                       ^30      
:|                       ^/usr/local/clang/include/absl/base/nullability.h
warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 985expanded from macro 'absl_nonnull' | 
     241  | v#odiedf iAnpep ea/usr/local/clang/include/absl/strings/internal/str_format/bind.hnb:ds158Tl:r_22en:eo (nwarning: Cn'enable_if' is a clang extension [-Wgcc-compat]ou
lrld   R_158eN | opn *n  u la lb 
s l_      __n| a                     ^ot
ntnruilblu tter_e_e(,( In file included from eMs2/s2closest_edge_query.ccne:at18bh:
loIn file included from ed../src/s2/s2closest_edge_query.h_I:id30fe:
(nIn file included from Vta../src/s2/s1angle.hil:fi28id:
eFrIn file included from o ../src/s2/s2point.hrm:me27at:
thIn file included from Io../src/s2/s2coder.hmd:p)23l;:
<
In file included from A      /usr/local/clang/include/absl/status/status.hr| :g                             ^67s
.:
/usr/local/clang/include/absl/base/nullability.h.In file included from :./usr/local/clang/include/absl/status/internal/status_internal.h241>::(2922s:
:)In file included from  ,/usr/local/clang/include/absl/strings/cord.hnote:  expanded from macro 'absl_nonnull':"
94b  :
a241In file included from d | /usr/local/clang/include/absl/strings/internal/cordz_info.h #:fdo31er:
fmi/usr/local/clang/include/absl/synchronization/mutex.hant:e  550ta:rb64as:pl "_)warning: n)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o)
n
n      u| l                       ^l550
  | _ N o n n u l l 
        |                       ^ 
       /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 162 : 22 :   warning:  In file included from 'enable_if' is a clang extension [-Wgcc-compat] s2/s2centroids.cc
 : 18    :
162bIn file included from  | a../src/s2/s2centroids.h s: e50 _:
 iIn file included from n t../src/s2/s2point.h e:_r27_n:
aaIn file included from lt:../src/s2/s2coder.ht::rP23ieb:
ruTIn file included from th/usr/local/clang/include/absl/status/status.her:e_67a_:
d(In file included from S(/usr/local/clang/include/absl/status/internal/status_internal.hye:nn29cah:
b/usr/local/clang/include/absl/strings/cord.h*l :ea986b_:sil40f_:(n Vowarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nl
indu  Fl986ol | r  mw a) t; I
vm      op| ild                                                               ^< A
Prrg/usr/local/clang/include/absl/base/nullability.hesp:.e.241n.d:>T(22rse:)e,T  o"note: Iexpanded from macro 'absl_nonnull'bna
ldi   nf241eo | d#r(dmCeaoftri dntRer eaappb*" s)al)b)s_
nl      o_| nn                     ^no
unlnlu l_lN otnrneuel,l

            | |                                        ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2closest_edge_query.ccb:s18l:
_In file included from n../src/s2/s2closest_edge_query.ho:n30n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: In file included from warning: s2/s2centroids.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2centroids.h  :55150 | :
 In file included from  ../src/s2/s2point.hs:t27a:
tIn file included from i../src/s2/s2coder.hc: 23b:
oIn file included from o/usr/local/clang/include/absl/status/status.hl: 67D:
eIn file included from c/usr/local/clang/include/absl/status/internal/status_internal.hr:e29m:
e/usr/local/clang/include/absl/strings/cord.hn:t988S:y37n:c hwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
m(Mu  t988e | x *   a bvsoli_dn oPnrneupleln dmTur,e
e      T| o                                       ^T
re/usr/local/clang/include/absl/base/nullability.he:(241C:o22r:d Rnote: eexpanded from macro 'absl_nonnull'p
*   a241b | s#ld_enfoinnneu lalb stlr_eneo,n nMueltlh o_dNIodnennutlilf
i      e| r                     ^ 
method);
      In file included from | s2/s2closest_edge_query.cc                                    ^:
18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_edge_query.h241::3022:
:In file included from  ../src/s2/s1angle.hnote: :expanded from macro 'absl_nonnull'28
:
In file included from   ../src/s2/s2point.h241: | 27#:
dIn file included from e../src/s2/s2coder.hf:i23n:
eIn file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l552
:      64| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |         In file included from  s2/s2centroids.cc : 18 :
 In file included from  ../src/s2/s2centroids.h : 50 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
bIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hs:e29_:
i/usr/local/clang/include/absl/strings/cord.hn:t989e:r31n:a lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
Per  T989h | r e a d Svyonicdh *P raebpseln_dnTorneneu(lClo rwd,R
e      p| *                                                               ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   t241r | e#ed,e fMienteh oadbIsdle_nntoinfniuelrl  m_eNtohnondu)l;l

            | |                               ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2closest_edge_query.ccl:_18n:
oIn file included from n../src/s2/s2closest_edge_query.hn:u30l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   voidIn file included from  s2/s2centroids.ccL:o18c:
kIn file included from S../src/s2/s2centroids.hl:o50w:
LIn file included from o../src/s2/s2point.ho:p27(:
SIn file included from y../src/s2/s2coder.hn:c23h:
WIn file included from a/usr/local/clang/include/absl/status/status.hi:t67P:
aIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.ha:m29s:
*/usr/local/clang/include/absl/strings/cord.h :a994b:s30l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l994  | w a i t pv,o iidn tC ofplyaTgos()s;t
d      :| :                                     ^s
tr/usr/local/clang/include/absl/base/nullability.hi:n241g:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf idnset )a bcsoln_snto n{n
u      l| l                             ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnullIn file included from  s2/s2closest_edge_query.cc_:N18o:
nIn file included from n../src/s2/s2closest_edge_query.hu:l30l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from 31s2/s2centroids.cc:
:/usr/local/clang/include/absl/synchronization/mutex.h18::
558In file included from :../src/s2/s2centroids.h35::50 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from   ../src/s2/s2coder.h558: | 23 :
 In file included from b/usr/local/clang/include/absl/status/status.ho:o67l:
 In file included from L/usr/local/clang/include/absl/status/internal/status_internal.ho:c29k:
S/usr/local/clang/include/absl/strings/cord.hl:o999w:W28i:t hwarning: Dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
adl  i999n | e ( M u Hvoowi da bCsolp_ynToonAnrurlaly (hcohwa,r
*       | a                                  ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
ds  t241) |  #cdoenfsitn;e
       a| b                           ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnIn file included from us2/s2closest_edge_query.ccl:l18 :
_In file included from N../src/s2/s2closest_edge_query.ho:n30n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |    In file included from  s2/s2centroids.cc : 18 :
 In file included from  ../src/s2/s2centroids.h : 50 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
t/usr/local/clang/include/absl/strings/cord.h :C1012o:n37d:i twarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
n* a b1012s | l _ n u lalbasbll:e: ccoorndd_,i
n      t| e                                             ^r
na/usr/local/clang/include/absl/base/nullability.hl::257::C23o:r dnote: zexpanded from macro 'absl_nullable'I
nf  o257* |  #adbesfli_nneu lalbasbll_en uclolradbzl_ei n_fNou(l)l acbolnes
t       | {                      ^

      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2closest_edge_query.ccb:s18l:
_In file included from n../src/s2/s2closest_edge_query.hu:l30l:
aIn file included from b../src/s2/s1angle.hl:e28 :
_In file included from N../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                      ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   In file included from vs2/s2centroids.cco:i18d:
 In file included from L../src/s2/s2centroids.ho:c50k:
SIn file included from l../src/s2/s2point.ho:w27(:
MIn file included from u../src/s2/s2coder.hH:o23w:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l1017 :h51o:w ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst  1017C | o n d i tviooind*  saebts_lc_onrudlzl_aibnlfeo (ccoonrdd,_
i      n| t                      ^e
rn/usr/local/clang/include/absl/base/nullability.ha:l241:::22C:o rnote: dexpanded from macro 'absl_nonnull'z
In  f241o | *# daebfsiln_en oanbnsull_ln ocnonrudlzl_ i_nNfoon)n u{ll

            | |                                                   ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2closest_edge_query.cc241: | 18#:
dIn file included from e../src/s2/s2closest_edge_query.hf:i30n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                     ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from ds2/s2centroids.cce:f18i:
nIn file included from e../src/s2/s2centroids.h :a50b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from  /usr/local/clang/include/absl/status/status.h_:N67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:b29l:
e/usr/local/clang/include/absl/strings/cord.h
:      1049| :                      ^56
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GeIn file included from ts2/s2closest_edge_query.ccF:l18a:
tIn file included from A../src/s2/s2closest_edge_query.hu:x30(:
aIn file included from b../src/s2/s1angle.hs:l28::
:In file included from c../src/s2/s2point.ho:r27d:
_In file included from i../src/s2/s2coder.hn:t23e:
rIn file included from n/usr/local/clang/include/absl/status/status.ha:l67::
:In file included from C/usr/local/clang/include/absl/status/internal/status_internal.ho:r29d:
RIn file included from e/usr/local/clang/include/absl/strings/cord.hp:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n565n:u36l:l  warning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
p,
        | 565                                                       ^ | 
  /usr/local/clang/include/absl/base/nullability.hv:o241i:d22 :U nnote: lexpanded from macro 'absl_nonnull'o
ck  S241l | o#wd(eSfyinnceh WaabistlP_anronnulalm s_*N oanbnsull_ln
u      l| l                     ^a
ble waitp) ABIn file included from Ss2/s2centroids.ccL:_18A:
TIn file included from T../src/s2/s2centroids.hR:I50B:
UIn file included from T../src/s2/s2point.hE:_27C:
OIn file included from L../src/s2/s2coder.hD:;23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                   ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::25729::
23/usr/local/clang/include/absl/strings/cord.h:: 1050note: :expanded from macro 'absl_nullable'45
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de f1050i | n e   a b s l _ n u l l a b l e  _ N u l l a b l e 
a      b| s                      ^l
::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2closest_edge_query.ccb:s18l:
_In file included from n../src/s2/s2closest_edge_query.ho:n30n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2centroids.cc576: | 18 :
 In file included from v../src/s2/s2centroids.ho:i50d:
 In file included from T../src/s2/s2point.hr:y27R:
eIn file included from m../src/s2/s2coder.ho:v23e:
(In file included from b/usr/local/clang/include/absl/status/status.ha:s67e:
_In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:t29e:
r/usr/local/clang/include/absl/strings/cord.hn:a1054l::37::P ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
hre a1054d | S y n c h *  aabbssll:_:ncoonrndu_liln tse)r;n
a      l| :                                                ^:
Co/usr/local/clang/include/absl/base/nullability.hr:d241R:e22p:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln er eapb,s
l      _| n                                    ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnullIn file included from  s2/s2closest_edge_query.cc_:N18o:
nIn file included from n../src/s2/s2closest_edge_query.hu:l30l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 | In file included from  s2/s2centroids.cc :v18o:
iIn file included from d../src/s2/s2centroids.h :B50l:
oIn file included from c../src/s2/s2point.hk:(27b:
aIn file included from s../src/s2/s2coder.he:_23i:
nIn file included from t/usr/local/clang/include/absl/status/status.he:r67n:
aIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h:::29P:
e/usr/local/clang/include/absl/strings/cord.hr:T1061h:r34e:a dwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
nch *1061  | a b svlo_indo nCnouplylT osA)r;r
a      y| S                                            ^l
ow/usr/local/clang/include/absl/base/nullability.hP:a241t:h22(:c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sdls_tn)o ncnounlslt ;_
N      o| n                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2closest_edge_query.ccl:_18n:
oIn file included from n../src/s2/s2closest_edge_query.hn:u30l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullableIn file included from  s2/s2centroids.cc_:N18u:
lIn file included from l../src/s2/s2centroids.ha:b50l:
eIn file included from 
../src/s2/s2point.h      :| 27                      ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2closest_edge_query.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h18::
29In file included from :
../src/s2/s2closest_edge_query.h/usr/local/clang/include/absl/strings/cord.h::301078:
:In file included from 33../src/s2/s1angle.h:: 28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from  ../src/s2/s2coder.h1078: | 23 :
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
:In file included from :/usr/local/clang/include/absl/status/internal/status_internal.hc:o29r:
dIn file included from _/usr/local/clang/include/absl/strings/cord.hi:n94t:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hn:a31l:
:/usr/local/clang/include/absl/synchronization/mutex.h::C581o:r38d:R ewarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s581l | _ n o n n u lbla sTea_kienRteepr(n)a lc:o:nPsetr&T;h
r      e| a                                ^d
Sy/usr/local/clang/include/absl/base/nullability.hn:c241h:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf iwn)e; 
a      b| s                                     ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _NonIn file included from ns2/s2centroids.ccu:l18l:

In file included from       ../src/s2/s2centroids.h| :                     ^50
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 | In file included from  s2/s2closest_edge_query.cc :a18b:
sIn file included from l../src/s2/s2closest_edge_query.h:::30c:
oIn file included from r../src/s2/s1angle.hd:_28i:
nIn file included from t../src/s2/s2point.he:r27n:
aIn file included from l../src/s2/s2coder.h:::23C:
oIn file included from r/usr/local/clang/include/absl/status/status.hd:R67e:
pIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hT:a585k:e20R:e pwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 &&;  
585       | |                                  ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d241 :T22r:a nnote: sexpanded from macro 'absl_nonnull'(
Mu  H241o | w# daebfsiln_en oanbnsull_ln ohnonwu)l;l   _/N/o nunsueldl 
f      o| r                     ^ 
CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2centroids.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2centroids.h::3150:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2point.h586::2743:
:In file included from  ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:  67586:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :v29o:
i/usr/local/clang/include/absl/strings/cord.hd: 1116F:e37r:( bwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
e_in t1116e | r n aclo:n:sPte rcTrhcr_eiandtSeyrnncahl*: :aCbrsclC_onrodnSntualtle
*       | a                                          ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 M  a241y | b#edGeeftiCnrec CaobrsdlS_tnaotnen(u)l lc o_nNsotn;n
u      l| l                                    ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #define absIn file included from ls2/s2closest_edge_query.cc_:n18u:
lIn file included from l../src/s2/s2closest_edge_query.ha:b30l:
eIn file included from  ../src/s2/s1angle.h_:N28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from 
../src/s2/s2coder.h      :| 23                      ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explIn file included from is2/s2centroids.ccc:i18t:
 In file included from M../src/s2/s2centroids.hu:t50e:
xIn file included from (../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :v23o:
lIn file included from a/usr/local/clang/include/absl/status/status.ht:i67l:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hM:u29t:
e/usr/local/clang/include/absl/strings/cord.hx:*1120 :a30b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull a1120b | l e  v/o*iidg nCoorpeydT*o/A)r r{a}y
I      m| p                                       ^l
(c/usr/local/clang/include/absl/base/nullability.hh:a257r:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf idnset )a bcsoln_sntu;l
l      a| b                             ^l
e /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e

      |                         ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2closest_edge_query.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2closest_edge_query.h::2330:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1angle.h::6728:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.h::2927:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2coder.h::8223:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/status/status.h::2367:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/status/internal/status_internal.h::3229:
:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :/usr/local/clang/include/absl/strings/cord.h164::948:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
/usr/local/clang/include/absl/synchronization/mutex.h  :164624 | : 68 :i nwarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*
 absl  _624n | o n neuxlpll iUcniuts eMdu(t)e x{L orcekt(uMrunt epx_&;  m}u
       A| B       ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
AT  T241R | I#BdUeTfEi_nCeA PaTbUsRlE_Dn_oBnYn(utlhli s_)N)o
n      n| u                                                                   ^~~~l
l
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 635/usr/local/clang/include/absl/status/status.h::2967::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82  :
635In file included from  | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23e:
xIn file included from p/usr/local/clang/include/absl/crc/crc32c.hl:i32c:
i/usr/local/clang/include/absl/strings/str_format.ht: 165M:u8t:e xwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
ck  (165M | u t eixn*t *a basbls_ln_onnonnunlull lm up)_ ;A
B      S| L       ^_
EX/usr/local/clang/include/absl/base/nullability.hC:L241U:S22I:V Enote: _expanded from macro 'absl_nonnull'L
OC  K241_ | F#UdNeCfTiInOeN (ambus)l
_      n| o                            ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CIn file included from As2/s2convex_hull_query.ccP:T26U:
RIn file included from E../src/s2/s2convex_hull_query.hD:_25B:
YIn file included from (../src/s2/s2cap.ht:h30i:
sIn file included from )../src/s2/s1angle.h,:
28      :
| In file included from                                                                    ^~~~../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std:/usr/local/clang/include/absl/synchronization/mutex.h::s649t:r29i:n gwarning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
StrA  p649p | e n deFxoprlmiacti(ts tMdu:t:esxtLroicnkg(*M uatbesxl*_ naobnsnlu_lnlo ndnsutl,l
       m| u                                          ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :C onote: nexpanded from macro 'absl_nonnull'd
it  i241o | n#&d ecfoinnde) 
a      b| s                            ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
onnu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& formaIn file included from ts2/s2closest_edge_query.cc,:
18      :
| In file included from                        ^../src/s2/s2closest_edge_query.h
:30:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h241::2822:
:In file included from  ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:o670n:n74u:l lwarning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                      ^
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIn file included from Is2/s2convex_hull_query.ccB:U26T:
EIn file included from _../src/s2/s2convex_hull_query.hC:A25P:
TIn file included from U../src/s2/s2cap.hR:E30D:
_In file included from B../src/s2/s1angle.hY:(28t:
hIn file included from i../src/s2/s2point.hs:)27):

In file included from       ../src/s2/s2coder.h| :                                                                         ^~~~23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int/usr/local/clang/include/absl/synchronization/mutex.h :S678N:P35r:i nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
(cha  r678* |   a besxlp_lniocnintu lRle aoduetrpMuutt,e xsLtodc:k:(sMiuztee_xt*  saibzsel,_
n      o| n                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241m:u22):  Anote: Bexpanded from macro 'absl_nonnull'S
L_  S241H | A#RdEeDf_iLnOeC Ka_bFsUlN_CnToInOnNu(lmlu )_
N      o| n                                  ^n
ull/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2convex_hull_query.cc::3126:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2convex_hull_query.h681::2574:
:In file included from  ../src/s2/s2cap.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]30
:
In file included from ../src/s2/s1angle.h:28:
In file included from   ../src/s2/s2point.h681: | 27 :
 In file included from e../src/s2/s2coder.hx:p23l:
iIn file included from c/usr/local/clang/include/absl/status/status.hi:t67 :
RIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.ha:d29e:
rIn file included from M/usr/local/clang/include/absl/strings/cord.hu:t82e:
xIn file included from L/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:c23k:
(In file included from M/usr/local/clang/include/absl/crc/crc32c.hu:t32e:
x/usr/local/clang/include/absl/strings/str_format.h&: 503m:u20 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IN  T503E | R N AFLo_rAmTaTtRRIaBwUSTiEn_kC(ATP*T UaRbEsDl__BnYo(ntnhuilsl) ,r
a      w| )                                                                         ^~~~ 
 // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define/usr/local/clang/include/absl/synchronization/mutex.h :a689b:s35l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l689  | _ N oenxnpullilc
i      t|                       ^R
eaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 | In file included from  s2/s2centroids.cc :e18x:
pIn file included from l../src/s2/s2centroids.hi:c50i:
tIn file included from  ../src/s2/s2point.hW:r27i:
tIn file included from e../src/s2/s2coder.hr:M23u:
tIn file included from e/usr/local/clang/include/absl/status/status.hx:L67o:
cIn file included from k/usr/local/clang/include/absl/status/internal/status_internal.h(:M29u:
t/usr/local/clang/include/absl/strings/cord.he:x1140*: 49a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn u1140l | l   m u ) 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  CaobrsdlR_enpoEnxntuelrln a_lN*o nanbuslll_
n      o| n                     ^n
ull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2closest_edge_query.ccl:_18n:
oIn file included from n../src/s2/s2closest_edge_query.hn:u30l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2centroids.cc:18:
  In file included from 722../src/s2/s2centroids.h | : 50 :
eIn file included from x../src/s2/s2point.hp:l27i:
cIn file included from i../src/s2/s2coder.ht: 23W:
rIn file included from i/usr/local/clang/include/absl/status/status.ht:e67r:
MIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.ht:e29x:
L/usr/local/clang/include/absl/strings/cord.ho:c1146k:(10M:u twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
& m u1146  | ACBoSrLd_RIeNpT*E RaNbAsLl__AnToTnRnIuBlUlT EN_eCwAEPxTtUeRrEnDa_lBRYe(pt(haibss)l,:
:      s| t                                                                         ^~~~r
ing_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #d/usr/local/clang/include/absl/synchronization/mutex.he:f731i:n35e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n731n | u l le x_pNloincniutl lW
r      i| t                     ^e
rMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2convex_hull_query.cc../src/s2/s2coder.h::2623:
:
In file included from In file included from ../src/s2/s2convex_hull_query.h/usr/local/clang/include/absl/status/status.h::2567:
:
In file included from In file included from ../src/s2/s2cap.h/usr/local/clang/include/absl/status/internal/status_internal.h::3029:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/strings/cord.h::2894:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2731:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/synchronization/mutex.h::23801:
:In file included from 20/usr/local/clang/include/absl/status/status.h:: 67:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:  82801:
 | In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h :C23o:
nIn file included from d/usr/local/clang/include/absl/crc/crc32c.hi:t32i:
o/usr/local/clang/include/absl/strings/str_format.hn:(860b:o43o:l  warning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
absl  _860n | o n nfurlile nfdu nvco)i(dv oAibds*l Faobrsmla_In file included from tns2/s2centroids.ccFu:ll18ul:
saIn file included from hb../src/s2/s2centroids.h(i:Floi50rt:
myIn file included from a_../src/s2/s2point.htu:Sn27ki:
nnIn file included from ko../src/s2/s2coder.h*w: n23a):
b,In file included from s
/usr/local/clang/include/absl/status/status.hl      :_| 67n                   ^:
o
In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn/usr/local/clang/include/absl/base/nullability.h:u:29l241:
l:/usr/local/clang/include/absl/strings/cord.h 22:s:1183i :n47knote: :expanded from macro 'absl_nonnull', 
warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]        
| 241                                          ^ | 
# d1183e/usr/local/clang/include/absl/base/nullability.h | f: i241 n:e  22 a: b snote:  lexpanded from macro 'absl_nonnull' _
 n   o 241n  | n # udl el f  i_ nN eo  n an bu ls ll _
 n       o n|  n                      ^u 
l l   _ N oIn file included from  ns2/s2closest_edge_query.cc nC:uo18lr:
ld
In file included from R      e../src/s2/s2closest_edge_query.h| p                     ^:
*30 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23r:
eIn file included from p/usr/local/clang/include/absl/status/status.h):In file included from 
67s2/s2convex_hull_query.cc      :
:| In file included from 26                                              ^/usr/local/clang/include/absl/status/internal/status_internal.h:

:In file included from 29../src/s2/s2convex_hull_query.h/usr/local/clang/include/absl/base/nullability.h:
::In file included from 25257/usr/local/clang/include/absl/strings/cord.h:
::In file included from 2394../src/s2/s2cap.h::
: In file included from 30note: /usr/local/clang/include/absl/strings/internal/cordz_info.h:
expanded from macro 'absl_nullable':In file included from 
31../src/s2/s1angle.h:
  :/usr/local/clang/include/absl/synchronization/mutex.h25728: | :
801#In file included from :d../src/s2/s2point.he45:f:27i :
nwarning: In file included from etype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h 
:a23b:
  sIn file included from 801l/usr/local/clang/include/absl/status/status.h | _ :n 67uC:
loIn file included from nld/usr/local/clang/include/absl/status/internal/status_internal.hai:bt29li:
eoIn file included from  n/usr/local/clang/include/absl/strings/cord.h(_b:No82uo:
llIn file included from  l/usr/local/clang/include/absl/crc/internal/crc_cord_state.h(a*:ab23bl:
seIn file included from l
/usr/local/clang/include/absl/crc/crc32c.h_      :n| o32                      ^n:

/usr/local/clang/include/absl/strings/str_format.hn:u867l:l60 :f uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
)(vo  i867d | *   aebxspll_incuiltl aFboirlmiattyS_iunnkk(nsown),t
r      _| f                                            ^o
rm/usr/local/clang/include/absl/base/nullability.ha:t289_:i34n:t enote: rexpanded from macro 'absl_nullability_unknown'n
al  :289: | F#odremfaitnSei nakbIsmlp_ln*u lalbasbli_lniotnyn_uulnlk nso)w
n       | _                                                           ^N
ul/usr/local/clang/include/absl/base/nullability.hl:_241u:n22s:p enote: cexpanded from macro 'absl_nonnull'i
fi  e241d | 
#      d| e                                 ^f
ine absl_nonnull In file included from _s2/s2closest_edge_query.ccN:o18n:
nIn file included from u../src/s2/s2closest_edge_query.hl:l30
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:In file included from 19s2/s2convex_hull_query.cc:: 26:
warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]../src/s2/s2convex_hull_query.h
:25:
In file included from   ../src/s2/s2cap.h802: | 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from v../src/s2/s2coder.ho:i23d:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hb:i82l:
iIn file included from t/usr/local/clang/include/absl/crc/internal/crc_cord_state.hy:_23u:
nIn file included from k/usr/local/clang/include/absl/crc/crc32c.hn:o32w:
n/usr/local/clang/include/absl/strings/str_format.h :a869r:g40):; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                  ^

/usr/local/clang/include/absl/base/nullability.h  :869289 | : 34 :s tnote: rexpanded from macro 'absl_nullability_unknown'_
fo  r289m | a#td_eifnitneer naabls:l:_FnourlmlaatbSiilniktIym_puln*k naobwsnl __nNounlnlu_luln In file included from ssps2/s2centroids.ccie:nc18ki:
f_In file included from i;../src/s2/s2centroids.he
:d      
50|       :
                                       ^| In file included from                                  ^
../src/s2/s2point.h
:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
d/usr/local/clang/include/absl/strings/cord.he:f1222i:In file included from n52s2/s2closest_edge_query.cce::  18warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
b
In file included from s../src/s2/s2closest_edge_query.hl: _301222n:
 | oiIn file included from nnn../src/s2/s1angle.hlu:il28nl:
e In file included from  _../src/s2/s2point.hvN:oo27in:
dnIn file included from  u../src/s2/s2coder.hCl:ol23r
:
d      In file included from :| /usr/local/clang/include/absl/status/status.h:                     ^:I
67n:
lIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29R:
eIn file included from p/usr/local/clang/include/absl/strings/cord.h:::94S:
wIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hp:(31C:
o/usr/local/clang/include/absl/synchronization/mutex.hr:d814:::20I:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
eRe  p814* |   a bCsoln_dniotninounl(lb orohls )( *{a
b      s| l                                                   ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :f unote: nexpanded from macro 'absl_nonnull'c
)(  T241* |  #adbesfli_nneu lalbasbilli_tnyo_nunnuklnlo w_nN)o,n
n      u| l                   ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*aIn file included from bs2/s2centroids.ccs:l18_:
nIn file included from o../src/s2/s2centroids.hn:n50u:
lIn file included from l../src/s2/s2point.h :f27u:
nIn file included from c../src/s2/s2coder.h):(23T:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.ha:b1230i:l20i:t ywarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
nkno w1230n | )i,n
l      i| n                                         ^e
 c/usr/local/clang/include/absl/base/nullability.ho:n289s:t34 :c hnote: aexpanded from macro 'absl_nullability_unknown'r
* a  b289s | l#_dneuflilnaeb laeb sClo_rndu:l:lIanbliilnietRye_pu:n:kdnaotwan( )_ Ncuolnls_tu n{s
p      e| c                   ^i
fie/usr/local/clang/include/absl/base/nullability.hd:
257      :| 23                                 ^:
 note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2closest_edge_query.cc :a18b:
sIn file included from l../src/s2/s2closest_edge_query.h_:n30u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from  ../src/s2/s2point.h_:N27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                      ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknoIn file included from ws2/s2centroids.ccn: 18a:
rIn file included from g../src/s2/s2centroids.h):;50
:
      In file included from | ../src/s2/s2point.h               ^:
27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h289::2334:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nullability_unknown'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :28929 | :
#/usr/local/clang/include/absl/strings/cord.hd:e1234f:i20n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n u1234l | lianbliilniet yc_ounnsktn ocwhna r_*N ualbls_lu_nnsopnencuilfli eCdo
r      d| :                                 ^:
InlineRep::as_chars() conIn file included from ss2/s2closest_edge_query.cct: 18{:

In file included from       ../src/s2/s2closest_edge_query.h| :                   ^30
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_830N:o14n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^  
830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
In file included from       s2/s2centroids.cc| :             ^18
:
In file included from ../src/s2/s2centroids.h/usr/local/clang/include/absl/base/nullability.h::50241:
:In file included from 22../src/s2/s2point.h:: 27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s1239l:_38n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _ N1239o | ninnulliln
e       | a                     ^b
sl::cIn file included from os2/s2closest_edge_query.ccr:d18_:
iIn file included from n../src/s2/s2closest_edge_query.ht:e30r:
nIn file included from a../src/s2/s1angle.hl::28::
CIn file included from o../src/s2/s2point.hr:d27R:
eIn file included from p../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hC:o94r:
dIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h::I31n:
l/usr/local/clang/include/absl/synchronization/mutex.hi:n830e:R36e:p :warning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
s_t  r830e | e ( ) 
        |                                       ^b
oo/usr/local/clang/include/absl/base/nullability.hl: 241(:*22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle ffiunnec )a(bTs*l _anbosnln_unlull l_aNboinlniutlyl_
u      n| k                     ^n
own),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _NuIn file included from ls2/s2centroids.ccl:_18u:
nIn file included from s../src/s2/s2centroids.hp:e50c:
iIn file included from f../src/s2/s2point.hi:e27d:

In file included from       ../src/s2/s2coder.h| :                                 ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inlinIn file included from es2/s2closest_edge_query.cc :a18b:
sIn file included from l../src/s2/s2closest_edge_query.h:::30c:
oIn file included from r../src/s2/s1angle.hd:_28i:
nIn file included from t../src/s2/s2point.he:r27n:
aIn file included from l../src/s2/s2coder.h:::23C:
oIn file included from r/usr/local/clang/include/absl/status/status.hd:R67e:
pIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31l:
e/usr/local/clang/include/absl/synchronization/mutex.h :C831o:r46d:: :warning: Itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
lin  e831R | e p : : t r etey(p)e
n      a| m                                     ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s257l::23::t ynote: pexpanded from macro 'absl_nullable'e
_i  d257e | n#tdietfyi<nTe> :a:btsylp_en*u lalbasbll_en u_lNlualblialbiltey
_      u| n                      ^k
nown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from In file included from s2/s2closest_edge_query.ccs2/s2centroids.cc::1818:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h../src/s2/s2centroids.h::3050:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2point.h::2827:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2coder.h::2723:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/status/status.h::2367:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/internal/status_internal.h::6729:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/internal/status_internal.h::125829::
36In file included from :/usr/local/clang/include/absl/strings/cord.h :warning: 94type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31 :
1258/usr/local/clang/include/absl/synchronization/mutex.h | :i844n:l10i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
or  d844_ | i n t e r n aTl*: :aCbosrld_RneopnFnlualtl*  oabbjselc_tn,o
n      n| u         ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                                   ^:
22: /usr/local/clang/include/absl/base/nullability.h:note: 241expanded from macro 'absl_nonnull':
22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2centroids.ccl:l18
:
      In file included from | ../src/s2/s2centroids.h                     ^:
50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 In file included from 1268s2/s2closest_edge_query.cc | :i18n:
lIn file included from i../src/s2/s2closest_edge_query.hn:e30 :
vIn file included from o../src/s2/s1angle.hi:d28 :
CIn file included from o../src/s2/s2point.hr:d27::
:In file included from I../src/s2/s2coder.hn:l23i:
nIn file included from e/usr/local/clang/include/absl/status/status.hR:e67p:
:In file included from :/usr/local/clang/include/absl/status/internal/status_internal.hE:m29p:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hc:e94T:
rIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.he:(31C:
o/usr/local/clang/include/absl/synchronization/mutex.hr:d850R:e16p:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n850o | n n u l l   rceopn,s
t       | T                                                  ^*
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   o241b | j#edcetf,i
n      e|                 ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |      In file included from  s2/s2centroids.ccb:o18o:
lIn file included from  ../src/s2/s2centroids.h(:a50b:
sIn file included from l../src/s2/s2point.h:::27t:
yIn file included from p../src/s2/s2coder.he:_23i:
dIn file included from e/usr/local/clang/include/absl/status/status.hn:t67i:
tIn file included from y/usr/local/clang/include/absl/status/internal/status_internal.h<:T29>:
:/usr/local/clang/include/absl/strings/cord.h::t1275y:p51e:: :warning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs l1275_ | nionnlniunlel  vmoeitdh oCdo)r(d):
:      I| n                                            ^l
in/usr/local/clang/include/absl/base/nullability.he:R241e:p22::: Enote: mexpanded from macro 'absl_nonnull'p
la  c241e | T#rdeeef(iCnoer daRbespl*_ naobnsnlu_lnlo n_nNuolnln urlelp
,      
|                            ^| 
                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2closest_edge_query.ccn:n18u:
lIn file included from l../src/s2/s2closest_edge_query.h :_30N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnulIn file included from ls2/s2centroids.cc :c18o:
ndIn file included from )../src/s2/s2centroids.h;:
50      :
| In file included from                                  ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e1282f:i47n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n o1282n | niunllli n_eN ovnoniudl lC
o      r| d                     ^:
:InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2closest_edge_query.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2closest_edge_query.h | :#30d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2centroids.cce:f18i:
nIn file included from e../src/s2/s2centroids.h :a50b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      /usr/local/clang/include/absl/strings/cord.h| :                     ^1290
:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineReIn file included from ps2/s2coords.cc:::18S:
eIn file included from t../src/s2/s2coords.hT:r108e:
eIn file included from O../src/s2/s2point.hr:E24m:
pIn file included from t/usr/local/clang/include/absl/hash/hash.hy:(89C:
oIn file included from r/usr/local/clang/include/absl/hash/internal/hash.hd:R79e:
pIn file included from */usr/local/clang/include/absl/base/internal/endian.h :a26b:
sl/usr/local/clang/include/absl/base/internal/unaligned_access.h_:n39u:l45l:a bIn file included from warning: ls2/s2closest_edge_query.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e:
 18r:
e   In file included from p39../src/s2/s2closest_edge_query.h, | :
i30      n:
| lIn file included from                                                      ^i../src/s2/s1angle.h
n:e/usr/local/clang/include/absl/base/nullability.h 28:u:
257iIn file included from :n../src/s2/s2point.h23t::127 6:
note: _In file included from expanded from macro 'absl_nullable't../src/s2/s2coder.h
 :U  23n257:
a | In file included from l#/usr/local/clang/include/absl/status/status.hid:ge67nf:
eidIn file included from nL/usr/local/clang/include/absl/status/internal/status_internal.heo: aa29db:
1sIn file included from 6l/usr/local/clang/include/absl/strings/cord.h(_:cn94ou:
nlIn file included from slt/usr/local/clang/include/absl/strings/internal/cordz_info.ha :bv31lo:
ei /usr/local/clang/include/absl/synchronization/mutex.hd_:*N896 u:al31bls:alb _lwarning: netype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o

n      n| u                        ^l896
l |   p )e x{p
l      i| c                                            ^i
t C/usr/local/clang/include/absl/base/nullability.ho:n241d:i22t:i onote: nexpanded from macro 'absl_nonnull'(
co  n241s | t# dTe*f ianbes la_bnsoln_nnuolnln uolblj )_
N      o| n                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 In file included from note: s2/s2centroids.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2centroids.h | :#50d:
eIn file included from f../src/s2/s2point.hi:n27e:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29_:
N/usr/local/clang/include/absl/strings/cord.ho:n1301n:u56l:l 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^

 1301 | inline void Cord::In file included from Is2/s2coords.ccn:l18i:
nIn file included from e../src/s2/s2coords.hR:e108p:
:In file included from :../src/s2/s2point.hC:o24m:
mIn file included from i/usr/local/clang/include/absl/hash/hash.ht:T89r:
eIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h(In file included from :cs2/s2closest_edge_query.cc79o::
n18In file included from s:
/usr/local/clang/include/absl/base/internal/endian.htIn file included from : ../src/s2/s2closest_edge_query.h26C::
o30/usr/local/clang/include/absl/base/internal/unaligned_access.hr:
:dIn file included from 45R../src/s2/s1angle.h:e:45p28:*:
  In file included from warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.hb
:s27l   :
_45nIn file included from  | ui../src/s2/s2coder.hln:ll23ai:
bnIn file included from le/usr/local/clang/include/absl/status/status.he : uo67iln:
dtIn file included from _3/usr/local/clang/include/absl/status/internal/status_internal.hr2e:_p29t, :

UIn file included from       n/usr/local/clang/include/absl/strings/cord.h| a                                                       ^:l
i94g:
/usr/local/clang/include/absl/base/nullability.hnIn file included from :e/usr/local/clang/include/absl/strings/internal/cordz_info.h257d::L3123o:
:a/usr/local/clang/include/absl/synchronization/mutex.h d:note: 3922expanded from macro 'absl_nullable'2:
(48c  o:257n  | s#warning: tdtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] e
vfoiin  de922*  |   aa bsbtssall_t_ninucol nlbnaoubollll e G pu_a)Nr ua{ln
lt      ea| eb                                            ^dl
Eeq/usr/local/clang/include/absl/base/nullability.h
u:a      241l| :(                      ^22c
:o nnote: sexpanded from macro 'absl_nonnull't
 C  oIn file included from 241ns2/s2centroids.cc | d:#i18dt:
eifoIn file included from in../src/s2/s2centroids.hn*:e 50a :
baIn file included from sbl../src/s2/s2point.hs_:ln27u_:
lnIn file included from lo../src/s2/s2coder.han:bnl23ue:
lIn file included from  l/usr/local/clang/include/absl/status/status.ha ,:_
67N      :
o| In file included from n                                               ^/usr/local/clang/include/absl/status/internal/status_internal.hn
:u29/usr/local/clang/include/absl/base/nullability.hl:
:l/usr/local/clang/include/absl/strings/cord.h257
::      130223| ::                     ^50 
:note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #d e1302f | i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
    In file included from  s2/s2coords.cc : 18 :
In file included from  In file included from s2/s2closest_edge_query.ccC../src/s2/s2coords.h:o:18r108:
d:
In file included from RIn file included from ../src/s2/s2closest_edge_query.he../src/s2/s2point.h:p:30*24:
 :
In file included from aIn file included from b../src/s2/s1angle.h/usr/local/clang/include/absl/hash/hash.hs::l2889_:
:
nIn file included from In file included from o../src/s2/s2point.h/usr/local/clang/include/absl/hash/internal/hash.hn::n2779u:
:
lIn file included from In file included from l../src/s2/s2coder.h/usr/local/clang/include/absl/base/internal/endian.h ::r2326e:
:
pIn file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h,/usr/local/clang/include/absl/status/status.h:
:51      67:| :
45                                                 ^In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h :/usr/local/clang/include/absl/base/nullability.hwarning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::

241In file included from :/usr/local/clang/include/absl/strings/cord.h22   ::5194  | :
note: iexpanded from macro 'absl_nonnull'In file included from n
/usr/local/clang/include/absl/strings/internal/cordz_info.hl  :i24131n | :
e#/usr/local/clang/include/absl/synchronization/mutex.h du:ei923fn:it48n6:e4  _warning: atbtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] s
Uln_an  lo923in | g nn ue l d lL  o_ aN d o6 n4 n ( uc lo l n
 s       t |                        ^v 
o i d *   a b s l _cnoonnsntu lClo npd)i t{i
o      n| *                                            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241b | )#;d
e      f| i                                               ^n
In file included from e/usr/local/clang/include/absl/base/nullability.hs2/s2centroids.cc ::a25718b::
s23In file included from l:../src/s2/s2centroids.h_ :n50onote: n:
expanded from macro 'absl_nullable'nIn file included from u
../src/s2/s2point.hl:l  27 257_:
N | In file included from o#../src/s2/s2coder.hnd:ne23uf:
liIn file included from ln/usr/local/clang/include/absl/status/status.h
e:       67| a:
                     ^bIn file included from 
s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
u/usr/local/clang/include/absl/strings/cord.hl:l1312a:b38l:e  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
ulla b1312l | ei
n      l| i                      ^n
e absl::cord_internal::CIn file included from os2/s2coords.ccr:d18R:
eIn file included from p../src/s2/s2coords.h*: 108a:
bIn file included from s../src/s2/s2point.hl:_24n:
uIn file included from l/usr/local/clang/include/absl/hash/hash.hl:aIn file included from 89bs2/s2closest_edge_query.cc:
l:In file included from e18/usr/local/clang/include/absl/hash/internal/hash.h :
:CIn file included from 79o../src/s2/s2closest_edge_query.h:
r:In file included from d30/usr/local/clang/include/absl/base/internal/endian.h::
::In file included from I26../src/s2/s1angle.hn:
:/usr/local/clang/include/absl/base/internal/unaligned_access.hl28:i:
57nIn file included from :e../src/s2/s2point.h36R::e27 p:
warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :
c../src/s2/s2coder.hl   :e57a23 | r:
i(In file included from n)/usr/local/clang/include/absl/status/status.hl i:{n
67e      :
 | vIn file included from                                      ^o/usr/local/clang/include/absl/status/internal/status_internal.h
i:d29/usr/local/clang/include/absl/base/nullability.h :
:UIn file included from 257n/usr/local/clang/include/absl/strings/cord.h:a:23l94:i:
 gIn file included from note: nexpanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/internal/cordz_info.he
:d  31S257:
t | o/usr/local/clang/include/absl/synchronization/mutex.h#rd:ee1948f6i:(nv10eo :iad b*warning: s latype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_bn
sull_l  na948ob | nl ne u blo_loN lup l,(l* aaubiblnsetl
1_      n6| u_                      ^lt
l avb)l e{ 
e      v| a                                   ^l
_)/usr/local/clang/include/absl/base/nullability.h(:c241o:n22s:t  note: Cexpanded from macro 'absl_nonnull'o
nd  i241t | i#odne*f ianbes la_bnsoln_nnuolnln)u l=l  n_uNlolnpnturl;l

            | |          ^                     ^

/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2centroids.ccnote: :expanded from macro 'absl_nullable'18
:
In file included from ../src/s2/s2centroids.h  :25750 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:b29l:
e/usr/local/clang/include/absl/strings/cord.h In file included from :_s2/s2coords.cc1321N:u:18l48l:
a:In file included from b ../src/s2/s2coords.hlwarning: :etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]108

:
      In file included from | ../src/s2/s2point.h                      ^ :
132124 | :
iIn file included from n/usr/local/clang/include/absl/hash/hash.hl:In file included from i89s2/s2closest_edge_query.ccn:
:eIn file included from 18 /usr/local/clang/include/absl/hash/internal/hash.h:
v:In file included from o79../src/s2/s2closest_edge_query.hi:
:dIn file included from 30 /usr/local/clang/include/absl/base/internal/endian.h:
C:In file included from o26../src/s2/s1angle.hr:
:d/usr/local/clang/include/absl/base/internal/unaligned_access.h28::::
61IIn file included from :n../src/s2/s2point.h36l::i27 n:
warning: eIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R../src/s2/s2coder.h
e:p23   ::
61:In file included from  | Ci/usr/local/clang/include/absl/status/status.honp:lyi67Tno:
eA In file included from rv/usr/local/clang/include/absl/status/internal/status_internal.hroa:iyd29( c:
UhIn file included from naa/usr/local/clang/include/absl/strings/cord.hrl:In file included from *i 94s2/s2contains_vertex_query.ccgan:
:besIn file included from 18dlS/usr/local/clang/include/absl/strings/internal/cordz_info.h:
_tn:In file included from oo31../src/s2/s2contains_vertex_query.hrn:
:/usr/local/clang/include/absl/synchronization/mutex.hn22u::
el948In file included from 3l:../src/s2/s2point.h2 (48:dv:27sot :
i)dwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] *../src/s2/s2coder.h
c :oa23  nbsst:
 948lIn file included from { | _ /usr/local/clang/include/absl/status/status.h
n :b      ooo67l|  n:
                                               ^(n
/usr/local/clang/include/absl/status/internal/status_internal.h*ua:b/usr/local/clang/include/absl/base/nullability.hl119s:l: l24114p_::,n22  u:warning: ul lnote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iaexpanded from macro 'absl_nonnull'
nb
tl  e  3241 1192 | _e | v #tda  evlSf)i_t) nae({ct 
ouna      ssb| R                                   ^ts eC
lp_o/usr/local/clang/include/absl/base/nullability.h*n n:oad241inb:stn22liuo:_lnn *lonote: n  expanded from macro 'absl_nonnull'_nNa
buos  lln241_lnn |  ou#Cdnlleonlfniu
en(l      e
 l|       a)                     ^| b             ^ 
=s
 ln_u/usr/local/clang/include/absl/base/nullability.hnl:ol241np:tnr22u;:l
 l      note:  expanded from macro 'absl_nonnull'| _                                               ^
N
o  n241n/usr/local/clang/include/absl/base/nullability.h | u#:ld241le:
f22      i:| n                      ^enote: 
 expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.hs2/s2closest_edge_query.cc:In file included from :79s2/s2contains_vertex_query.cc18:
::
In file included from 18In file included from /usr/local/clang/include/absl/base/internal/endian.h:
../src/s2/s2closest_edge_query.h:In file included from :26../src/s2/s2contains_vertex_query.h30:
::
/usr/local/clang/include/absl/base/internal/unaligned_access.h22In file included from ::
../src/s2/s1angle.h65In file included from ::../src/s2/s2point.h2836::
:27In file included from  :
warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :
../src/s2/s2coder.h27::
23   In file included from :
65../src/s2/s2coder.hIn file included from  | :/usr/local/clang/include/absl/status/status.hi23:n:
67lIn file included from :
i/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/internal/status_internal.hn::e67125 :
:vIn file included from 14o/usr/local/clang/include/absl/status/internal/status_internal.h:i: d29warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
U
In file included from n/usr/local/clang/include/absl/strings/cord.ha  :l125i94 | g :
n In file included from eS/usr/local/clang/include/absl/strings/internal/cordz_info.hdt:Sat31to:
urs/usr/local/clang/include/absl/synchronization/mutex.heR6:e4951p(:*v9 o:aib ds*warning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] _a
nbosn  ln951_un | l o lvno indC*l oanubelAlsnl dp_Un,unl lrauebilfne(t 
6a      4r| _g             ^t_
  v=/usr/local/clang/include/absl/base/nullability.h) :n 241u{l:l
22p      t:| r                                    ^;note: 

expanded from macro 'absl_nonnull'      
| /usr/local/clang/include/absl/base/nullability.h          ^:241
241 | :#/usr/local/clang/include/absl/base/nullability.h22d::e257 f:note: iexpanded from macro 'absl_nonnull'23n
:e    note: 241aexpanded from macro 'absl_nullable' | b#
sdl  e_f257ni | o#nndeen fuailnbles  l_a_bNsnolon_nnnnuuullllll
 a      _b| Nl                     ^oe
n n_uNlull
l      a| b                     ^l
e
      |                       ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from In file included from ../src/s2/s2contains_vertex_query.hs2/s2closest_edge_query.cc::2218:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2closest_edge_query.h::2730:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6727:
:
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2coder.h128::2314:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29128:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h :S94t:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hu:s31R:
e/usr/local/clang/include/absl/synchronization/mutex.hp:*954 :a52b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u954l | l   CsltoanteiAcn dbUonorle fC(a)l lcVoonisdtP;t
r      F| u             ^n
ct/usr/local/clang/include/absl/base/nullability.hi:o241n:(22c:o nnote: sexpanded from macro 'absl_nonnull't
 C  o241n | d#idteifoinn*e  aabbssll__nnoonnnnuullll  c_)N;o
n      n| u                                                   ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex*In file included from  s2/s2coords.cca:b18s:
lIn file included from _../src/s2/s2coords.hn:o108n:
nIn file included from u../src/s2/s2point.hl:l24 :
mIn file included from u/usr/local/clang/include/absl/hash/hash.h,: 89a:
bIn file included from s/usr/local/clang/include/absl/hash/internal/hash.hl::79::
T/usr/local/clang/include/absl/base/internal/endian.hi:m160e: 36d:e awarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ine)   160{ | 
i      n| l                               ^i
ne/usr/local/clang/include/absl/base/nullability.h :u241i:n22t:1 6note: _expanded from macro 'absl_nonnull't
 L  o241a | d#1d6e(fcionnes ta bvsoli_dn*o nanbuslll_ n_oNnonnunlull lp
)       | {                     ^

      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2closest_edge_query.ccl:l18 :
_In file included from N../src/s2/s2closest_edge_query.ho:n30n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(In file included from cs2/s2coords.cco:n18s:
tIn file included from  ../src/s2/s2coords.hc:h108a:
rIn file included from *../src/s2/s2point.h :a24b:
sIn file included from l/usr/local/clang/include/absl/hash/hash.h_:n89u:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.ha:b79l:
e/usr/local/clang/include/absl/base/internal/endian.h :n164a:m27e:) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                   ^
  164/usr/local/clang/include/absl/base/nullability.h | :i257n:l23i:n enote:  expanded from macro 'absl_nullable'v
o  257 | #deifdi nSet oarbes1l6_(nvuolilda*b laeb s_lN_unlolnanbullel
       p| ,                      ^ 
uint16_t v) {
      |                           ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2closest_edge_query.cc::24118::
22In file included from :../src/s2/s2closest_edge_query.h :note: 30expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h:  28241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.h_:N94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 1091                     ^:
26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2coords.cc
:18  :
241In file included from  | ../src/s2/s2coords.h#:d108e:
fIn file included from i../src/s2/s2point.hn:e24 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:n79u:
l/usr/local/clang/include/absl/base/internal/endian.hl: 168_:N36o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^168
 | inline uint32_t Load32In file included from (s2/s2closest_edge_query.ccc:o18n:
sIn file included from t../src/s2/s2closest_edge_query.h :v30o:
iIn file included from d../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.hp:)67 :
{In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                   ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h94::
241In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
1093:  46241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin e1093  | a b svlo_indo nRneumlolv e_(Nboansneu_liln
t      e| r                     ^n
al::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2coords.cc | :#18d:
eIn file included from f../src/s2/s2coords.hi:n108e:
 In file included from a../src/s2/s2point.hb:s24l:
_In file included from n/usr/local/clang/include/absl/hash/hash.ho:n89n:
uIn file included from l/usr/local/clang/include/absl/hash/internal/hash.hl: 79_:
N/usr/local/clang/include/absl/base/internal/endian.ho:n172n:u27l:l 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const voiIn file included from ds2/s2centroids.cc*: 18a:
bIn file included from s../src/s2/s2centroids.hl:_50n:
oIn file included from In file included from n../src/s2/s2point.hs2/s2closest_edge_query.ccn::u2718l:
:
lIn file included from In file included from  ../src/s2/s2coder.h../src/s2/s2closest_edge_query.hp::)2330 :
:
{In file included from In file included from 
/usr/local/clang/include/absl/status/status.h../src/s2/s1angle.h      ::| 6728                                   ^:
:

In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h:::2924127:
::
/usr/local/clang/include/absl/strings/cord.h22In file included from ::../src/s2/s2coder.h1505 ::note: 2341expanded from macro 'absl_nonnull':
:
In file included from  /usr/local/clang/include/absl/status/status.h  warning: :241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67 | 
:
#In file included from d /usr/local/clang/include/absl/status/internal/status_internal.he1505f: | ii29nn:
elIn file included from  i/usr/local/clang/include/absl/strings/cord.han:be94s :
lvIn file included from _o/usr/local/clang/include/absl/strings/internal/cordz_info.hni:od31n :
nC/usr/local/clang/include/absl/synchronization/mutex.huo:lr1109ld: :34_::NCo onwarning: pntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]yu
TlolA
r       r1109| a |                      ^ y 
Iemxppll(icchiatr *M uatbesxlL_oncoknMnauylble (dMsutt)In file included from e xs2/s2coords.ccc*: o18an:
bsIn file included from stl../src/s2/s2coords.h _{n:
u108      l:
| lIn file included from a                                        ^../src/s2/s2point.hb
:l24e:
/usr/local/clang/include/absl/base/nullability.h In file included from :m/usr/local/clang/include/absl/hash/hash.hu241)::
8922      :
:| In file included from                                  ^ /usr/local/clang/include/absl/hash/internal/hash.h
note: :expanded from macro 'absl_nonnull'79/usr/local/clang/include/absl/base/nullability.h
:
:  /usr/local/clang/include/absl/base/internal/endian.h257241:: | 180#23:d:27e :f inote: warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'e

 a    b257180s |  | #lid_nenlfoiinnnneeu  lavlob i_sdlN_ onnunlulSaltbllo
er       e| _6                     ^N4u
(lvloaibdl*e 
a      b| s                      ^l
_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2closest_edge_query.cc :note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2closest_edge_query.h  :24130 | :
#In file included from d../src/s2/s1angle.he:f28i:
nIn file included from e../src/s2/s2point.hIn file included from  :s2/s2centroids.cca27:b:
18sIn file included from :
l../src/s2/s2coder.hIn file included from _:../src/s2/s2centroids.hn23:o:
50nIn file included from :
n/usr/local/clang/include/absl/status/status.hIn file included from u:../src/s2/s2point.hl67:l:
27 In file included from :
_/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from N:../src/s2/s2coder.ho29:n:
23nIn file included from :
u/usr/local/clang/include/absl/strings/cord.hIn file included from l:/usr/local/clang/include/absl/status/status.hl94:
:
67      In file included from :
| /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from                      ^:/usr/local/clang/include/absl/status/internal/status_internal.h
31::
29/usr/local/clang/include/absl/synchronization/mutex.h:
:/usr/local/clang/include/absl/strings/cord.h1117::151434::29 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1117  | 1514  |   e x p lciocridt_ iMnutteerxnLaolc:k:MCaoyrbdeR(eMpu*t eaxb*s la_bnsoln_nnuullll atbrleee )m u{,
       c| o                            ^n
st/usr/local/clang/include/absl/base/nullability.h :C241o:n22d:i tnote: iexpanded from macro 'absl_nonnull'o
n&   241c | o#ndde)f
i      n| e                                 ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
e       | a                     ^b
sl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(muIn file included from )s2/s2centroids.cc
:      18| :
      ^~~~In file included from 
../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline/usr/local/clang/include/absl/synchronization/mutex.h :C1153o:r39d:: :warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
unk I1153t | e r aetxoprl:i:cCihtu nRkeIlteearsaatbolIn file included from res2/s2contains_vertex_query.cc(:cM18uo:
tneIn file included from sx../src/s2/s2contains_vertex_query.hLt:o 22cC:
okIn file included from r(../src/s2/s2point.hdM:u*27t :
eaxIn file included from *b../src/s2/s2coder.h s:alb23_s:
nlIn file included from o_/usr/local/clang/include/absl/status/status.hnn:no67un:
ln/usr/local/clang/include/absl/status/internal/status_internal.hlu:l 149lc: o13mru:)d 
)warning:        type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{| 
                                      ^

        | 149                                                      ^/usr/local/clang/include/absl/base/nullability.h | 
c:o/usr/local/clang/include/absl/base/nullability.h241n::s241t22: :22c :hnote:  aexpanded from macro 'absl_nonnull'note: r
expanded from macro 'absl_nonnull'*
     a241241b |  | s##dlde_enffoiinnnneu elal b asMblsal_k_neonCnohnneuncluklllF  a__iNNlooSnntnnruuillnllg

(            
| |                            ^                     ^| 

            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2closest_edge_query.ccn:n18u:
lIn file included from l../src/s2/s2closest_edge_query.h
:      30| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2contains_vertex_query.cc67::
18In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2contains_vertex_query.h29::
22In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2point.h94::
27In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2coder.h31::
23/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1158/usr/local/clang/include/absl/status/status.h::5367::
 /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]150
:25: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1158
 |       150  |   M u t ecxo&n smtu  aAbBsSlL:_In file included from :Is2/s2coords.ccSN:tT18aE:
tRIn file included from uN../src/s2/s2coords.hAsL:*_108 A:
aTIn file included from Tb../src/s2/s2point.hRs:IlB24_U:
nTIn file included from oE/usr/local/clang/include/absl/hash/hash.hn_:nC89AuP:
lTIn file included from lU/usr/local/clang/include/absl/hash/internal/hash.h R:sE79tD:
_/usr/local/clang/include/absl/base/internal/endian.hBaY:t(250ut:hsi36,s:)  ,warning: c
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o      
n| s                                                    ^~~~t  
 250c | hianrl*i naeb suli_nnto1n6n_utl lL oparde1f6i(xc)o;/usr/local/clang/include/absl/synchronization/mutex.hn
:s      1166t| :                         ^39v
:o/usr/local/clang/include/absl/base/nullability.h i:warning: d241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*:
 22a:b  note: s1166expanded from macro 'absl_nonnull'l | 
 _   ne241xo | pn#lnidcueilflti  nRpee) l ae{ba
ss      la| _b                                   ^nl
oenM/usr/local/clang/include/absl/base/nullability.hunt:eu241xl:Ll22o ck(:_M Nunote: otexpanded from macro 'absl_nonnull'ne
nxu  *l 241la | b
s#      ld| _e                     ^nf
oinnneu laIn file included from lbs2/s2contains_vertex_query.cc s:ml18_u:
,nIn file included from  o../src/s2/s2contains_vertex_query.hcn:on22nu:
slIn file included from tl../src/s2/s2point.h  :C_27oNn:
odIn file included from ni../src/s2/s2coder.htn:iu23lo:
lnIn file included from 
&/usr/local/clang/include/absl/status/status.h       :c| 67                     ^o:

/usr/local/clang/include/absl/status/internal/status_internal.hn:d150):
58      :|                                        ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:  22150: |   note:  expanded from macro 'absl_nonnull' 
 c  o241n | s#td eafbisnle: :StaIn file included from tas2/s2coords.ccub:ss18*l:
 _In file included from na../src/s2/s2coords.hob:ns108nlu:
l_lIn file included from n ../src/s2/s2point.ho_:nN24no:
nuIn file included from nl/usr/local/clang/include/absl/hash/hash.hlu: l89sl:
t
In file included from a      /usr/local/clang/include/absl/hash/internal/hash.ht| :u                     ^79s
:
,/usr/local/clang/include/absl/base/internal/endian.h :c254o:n27s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   254a | bisnll_innoen nvuolild  pSrteofriex1)6;(
v      o| i                                                         ^d
* /usr/local/clang/include/absl/base/nullability.ha:b241s:In file included from l22s2/s2closest_edge_query.cc_::n 18onote: :
nexpanded from macro 'absl_nonnull'In file included from n
../src/s2/s2closest_edge_query.hu:  l30241l:
 |  #pIn file included from d,../src/s2/s1angle.he f:ui28in:
neIn file included from t ../src/s2/s2point.h1a:6b_27stl:
 _In file included from vn../src/s2/s2coder.h)o: n23{n:

uIn file included from       l/usr/local/clang/include/absl/status/status.h| l                          ^: 
67_:
/usr/local/clang/include/absl/base/nullability.hNIn file included from :o/usr/local/clang/include/absl/status/internal/status_internal.h241n::n2922u:
:lIn file included from  l/usr/local/clang/include/absl/strings/cord.hnote: 
expanded from macro 'absl_nonnull':      
94| :
                       ^In file included from 241
/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i1179n:e10 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_no n1179n | u l lM u_tNeoxn*n ualbls
l      _| n                     ^u
llable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NIn file included from us2/s2coords.ccl:l18a:
bIn file included from l../src/s2/s2coords.he:
108      :
| In file included from                       ^../src/s2/s2point.h
:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:In file included from 30s2/s2coords.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2coords.h:
:In file included from 108../src/s2/s2point.h:
:In file included from 27../src/s2/s2point.h:
:In file included from 24../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/hash/hash.h:
:In file included from 89/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/hash/internal/hash.h:
:In file included from 79/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/base/internal/endian.h29::
270In file included from :/usr/local/clang/include/absl/strings/cord.h27::94 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h270: | 1212i:n52l:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
void  1212S | tbooroel6 4C(ovnodiidt*i oanb:s:lC_ansotnAnnudlCla lpl,M eutihnotd6(4c_otn svt)  C{o
n      d| ition                          ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241c | )# d{e
f      i| n                                                   ^e
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50In file included from :
s2/s2closest_edge_query.ccIn file included from :../src/s2/s2point.h18::
27In file included from :
../src/s2/s2closest_edge_query.hIn file included from :../src/s2/s2coder.h30::
23In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/status/status.h28::
67In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h27::
29In file included from :
../src/s2/s2coder.h:/usr/local/clang/include/absl/strings/cord.h23::
1666In file included from :/usr/local/clang/include/absl/status/status.h48::67 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h :166694 | :
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hl:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :C1221o:r54d:  Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
d::A d1221v | abnocoelA nCdoRnedaidt(iCohna:r:ICtaesrtaAtnodrC*a lalbFsuln_cntoinonnu(lclo nistt, 
C      o| n                                               ^d
iti/usr/local/clang/include/absl/base/nullability.ho:n241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fci)n e{ 
a      b| s                                                     ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_edge_query.cc: 181672:
 | In file included from i../src/s2/s2closest_edge_query.hn:l30i:
nIn file included from e../src/s2/s1angle.h :v28o:
iIn file included from d../src/s2/s2point.h :C27o:
rIn file included from d../src/s2/s2coder.h:::23A:
dIn file included from v/usr/local/clang/include/absl/status/status.ha:n67c:
eIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hC:h29a:
rIn file included from I/usr/local/clang/include/absl/strings/cord.ht:e94r:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1230s:l12_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
uIn file included from l s2/s2contains_vertex_query.ccl1230:  | 18i :
t In file included from , ../src/s2/s2contains_vertex_query.h  b:so22oil:
 zIn file included from (e../src/s2/s2point.h*_a:bt27s :
lnIn file included from __../src/s2/s2coder.hnbo:yn23tn:
uel/usr/local/clang/include/absl/status/status.hsl:) 725 f:{u38
n:      c )warning: (| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T                                        ^
*
 a  /usr/local/clang/include/absl/base/nullability.hb725s: | l241 _:n u22sl:tl aanote: tbexpanded from macro 'absl_nonnull'ii
lc  i 241tsy | t_#audtneukfsni_noiewn nt)ae,br
snl      a_| ln           ^:o:
nSntu/usr/local/clang/include/absl/base/nullability.halt:lu241 s:_RN22eop:n*n  uanote: lbexpanded from macro 'absl_nonnull'ls

l      _| n                       ^o241
n | n#udlelf iPnree paabrselT_onMoondniuflyl( 
_      N| o                                     ^n
nul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2closest_edge_query.cc#:d18e:
fIn file included from i../src/s2/s2closest_edge_query.hn:e30 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull fuIn file included from ns2/s2contains_vertex_query.ccc:)18(:
TIn file included from *../src/s2/s2contains_vertex_query.h :a22b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23i:
l/usr/local/clang/include/absl/status/status.hi:t732y:_29u:n kwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn)  ,732
 |        |                                   ^s
ta/usr/local/clang/include/absl/base/nullability.ht:i289c: 34c:o nnote: sexpanded from macro 'absl_nullability_unknown't
 s  t289d | :#:dsetfriinneg *a basbls_ln_unlolnanbuillli tEym_putnykSntorwinn g_(N)u;l
l      _| u                            ^n
sp/usr/local/clang/include/absl/base/nullability.he:c241i:f22i:e dnote: 
expanded from macro 'absl_nonnull'      
|                                  ^  
241 | #define absl_noIn file included from ns2/s2closest_edge_query.ccn:u18l:
lIn file included from  ../src/s2/s2closest_edge_query.h_:N30o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231In file included from :s2/s2contains_vertex_query.cc8::18 :
warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]../src/s2/s2contains_vertex_query.h
:22:
 In file included from 1231../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.hT:*23 :
a/usr/local/clang/include/absl/status/status.hb:s733l:_29n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bil  i733t | y _ usntkantoiwcn  caorngs)t
       s| t       ^d
::/usr/local/clang/include/absl/base/nullability.hs:t289r:i34n:g *note:  expanded from macro 'absl_nullability_unknown'a
bs  l289_ | n#odnenfuilnle  Maobvseld_FnruolmlSatbriilnigt(y)_;u
n      k| n                            ^o
wn/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l _note: uexpanded from macro 'absl_nonnull'n
sp  e241c | i#fdieefdi
n      e|                                   ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2closest_edge_query.cc::2318:
:
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2closest_edge_query.h751::3061:
:In file included from  ../src/s2/s1angle.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:27  :
751In file included from  | ../src/s2/s2coder.h : 23s:
tIn file included from a/usr/local/clang/include/absl/status/status.ht:i67c:
 In file included from u/usr/local/clang/include/absl/status/internal/status_internal.hi:n29t:
pIn file included from t/usr/local/clang/include/absl/strings/cord.hr:_94t:
 In file included from P/usr/local/clang/include/absl/strings/internal/cordz_info.ho:i31n:
t/usr/local/clang/include/absl/synchronization/mutex.he:r1241T:o12R:e pwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
tat u1241s | _ i n t ebronoall :(:*Satbastlu_snRoenpn*u lalb sflu_nnco)n(nTu*l la brs)l;_
n      u| l                                                            ^l
ab/usr/local/clang/include/absl/base/nullability.hi:l241i:t22y:_ unote: nexpanded from macro 'absl_nonnull'k
no  w241n | )#,d
e      f| i           ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^In file included from 
s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from In file included from s2/s2closest_edge_query.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h../src/s2/s2coder.h::3023:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1angle.h::75228::
44In file included from :../src/s2/s2point.h :warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23:
  In file included from 752/usr/local/clang/include/absl/status/status.h | : 67 :
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.ha:t29i:
cIn file included from  /usr/local/clang/include/absl/strings/cord.hc:o94n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h :s31t:
a/usr/local/clang/include/absl/synchronization/mutex.ht:u1241s:_34i:n twarning: etype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]r
nal :1241: | S t a t ubsoRoelp *( *aabbssll__nnoonnnnuullll  RfeupnTco)P(oTi*n taebrs(l
_      n| u                                           ^l
la/usr/local/clang/include/absl/base/nullability.hb:i241l:i22t:y _note: uexpanded from macro 'absl_nonnull'n
kn  o241w | n#)d,e
f      i| n                                 ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s289l:_34n:o nnote: nexpanded from macro 'absl_nullability_unknown'u
ll   289_ | N#odnenfuilnle
       a| b                     ^s
l_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCoIn file included from rs2/s2coords.ccd:T18o:
SIn file included from t../src/s2/s2coords.hr:i108n:
gIn file included from (../src/s2/s2point.hc:o24n:
sIn file included from t/usr/local/clang/include/absl/hash/hash.h :C89o:
rIn file included from d/usr/local/clang/include/absl/hash/internal/hash.h&: 89s:
rIn file included from c/usr/local/clang/include/absl/numeric/int128.h,: 41s:
t/usr/local/clang/include/absl/types/compare.hd::78::s22t:r iwarning: n'enable_if' is a clang extension [-Wgcc-compat]g
* abs   l78_ | n o n n u l l_ _dasttt)r;i
b      u| t                                                    ^e
__((/usr/local/clang/include/absl/base/nullability.he:n241a:b22l:e _note: iexpanded from macro 'absl_nonnull'f
(n   241= | =# d0e,f i"nOen layb slli_tneornanluIn file included from  ls2/s2convex_hull_query.cc`l:0 26`_:
 NIn file included from io../src/s2/s2convex_hull_query.hsn: n25ual:
llIn file included from 
l../src/s2/s2cap.h      o:| w30                     ^e:

dIn file included from .../src/s2/s1angle.h":)28):
)In file included from  ../src/s2/s2point.h{:}27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:In file included from 32s2/s2closest_edge_query.cc::4718::
 In file included from warning: ../src/s2/s2closest_edge_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
30:
In file included from ../src/s2/s1angle.h:28   :
32In file included from  | ../src/s2/s2point.hs:i27z:
eIn file included from _../src/s2/s2coder.ht: 23G:
eIn file included from t/usr/local/clang/include/absl/status/status.hE:s67t:
iIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.ha:t29e:
d/usr/local/clang/include/absl/strings/cord.hM:e110m:o55r:y Uwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ge(c  o110n | svto iCdo rAdpRpeepn*d CaobrsdlT_onSotnrniunlgl( croenps)t; 
C      o| r                                              ^d
& s/usr/local/clang/include/absl/base/nullability.hr:c241,: 22s:t dnote: :expanded from macro 'absl_nonnull':
st  r241i | n#gd*e faibnsel _anbosnln_unloln ndusltl) ;_
N      o| n                                                      ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2convex_hull_query.cc_:N26o:
nIn file included from n../src/s2/s2convex_hull_query.hu:l25l:

In file included from       ../src/s2/s2cap.h| :                     ^30
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, stIn file included from ds2/s2contains_vertex_query.cc:::18s:
tIn file included from r../src/s2/s2contains_vertex_query.hi:n22g:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nu/usr/local/clang/include/absl/status/status.hl:l1031 :d42s:t )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                              ^
 1031/usr/local/clang/include/absl/base/nullability.h | :i241n:l22i:n enote:  expanded from macro 'absl_nonnull'c
on  s241t |  #sdteaftiunse_ ianbtselr_nnaoln:n:uSltla t_uNsoRnenpu*l la
b      s| l                     ^_
nonnull Status::RepToPointerIn file included from (s2/s2closest_edge_query.cc
:      18| :
                                         ^In file included from 
../src/s2/s2closest_edge_query.h:30:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
b/usr/local/clang/include/absl/strings/cord.hs:l437_:n47o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _  N437o | n n u l l 
        |                       ^ 
                        std::string* absl_nonnull dst);
      |                                               ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2contains_vertex_query.cc::24118::
22In file included from :../src/s2/s2contains_vertex_query.h :22note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
f/usr/local/clang/include/absl/status/status.hi:n1038e: 33a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non n1038u | l l   _ Nsotnantuulsl_
i      n| t                     ^e
rnal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2closest_edge_query.cc_:N18o:
nIn file included from n../src/s2/s2closest_edge_query.hu:l30l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:18:
In file included from ../src/s2/s2contains_vertex_query.h:22:
In file included from ../src/s2/s2point.h:In file included from 27s2/s2closest_edge_query.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2closest_edge_query.h:
:30/usr/local/clang/include/absl/status/status.h:
:In file included from 1063../src/s2/s1angle.h::1328::
 In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s2coder.h :106323 | :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.hh:a29r:
*/usr/local/clang/include/absl/strings/cord.h :a501b:s52l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   501S | t a t u seMxepslsIn file included from ias2/s2centroids.cccg:ie18tA:
 sIn file included from CC../src/s2/s2centroids.hhS:ut50nr:
k(IIn file included from t
../src/s2/s2point.he      :r| a27            ^t:

oIn file included from r../src/s2/s2coder.h(/usr/local/clang/include/absl/base/nullability.hc:o:23r241:
d:_In file included from 22i/usr/local/clang/include/absl/status/status.h:n: t67enote: r:
expanded from macro 'absl_nonnull'n
a/usr/local/clang/include/absl/status/internal/status_internal.hl  ::241149: | :C#13odr:de Rwarning: eftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]pi
*n ea   b149as | blcso_lnn_sontn oncnuhlnalur l*tlr  eae_b)Ns;ol
n_      nn| u                                                   ^ol
nln
/usr/local/clang/include/absl/base/nullability.hu      :l| 241l                     ^: 
22M:a knote: eexpanded from macro 'absl_nonnull'C
he  c241k | F#adielfSitnrei nagb(s
l      _| n            ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _NoIn file included from ns2/s2closest_edge_query.ccn:u18l:
lIn file included from 
../src/s2/s2closest_edge_query.h      :| 30                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2centroids.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2centroids.h/usr/local/clang/include/absl/status/internal/status_internal.h::5029:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2point.h::50427::
40In file included from :../src/s2/s2coder.h :warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
  /usr/local/clang/include/absl/status/internal/status_internal.h504: | 150 : 25 :  explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_edge_query.cc:  18150:
 | In file included from  ../src/s2/s2closest_edge_query.h : 30 :
cIn file included from o../src/s2/s1angle.hn:s28t:
 In file included from a../src/s2/s2point.hb:s27l:
:In file included from :../src/s2/s2coder.hS:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n588n:u17l:l  warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
atu  s588, |   c o n scto ncshta rC*o radb*s la_bnsoln_nnuolnln uplrle fcioxr)d;_
;      
|                               ^| 
                ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 :note:  expanded from macro 'absl_nonnull'
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absIn file included from ls2/s2closest_edge_query.cc:::18S:
tIn file included from a../src/s2/s2closest_edge_query.ht:u30s:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
sIn file included from t/usr/local/clang/include/absl/status/status.ha:t67u:
sIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
n/usr/local/clang/include/absl/strings/cord.hs:t641 :c33h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l641_ | n o n n uulsli npgr epfoiixn)t;e
r       | =                                                         ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la;b
s      l| _                                ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2closest_edge_query.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2closest_edge_query.h:/usr/local/clang/include/absl/status/status.h30::
725In file included from :../src/s2/s1angle.h38::28 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:  23725:
 | In file included from  /usr/local/clang/include/absl/status/status.h :s67t:
aIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hi:c29 :
s/usr/local/clang/include/absl/strings/cord.ht:a898t:u27s:_ iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
erna  l898: | : S tfartiuesnRde pc*o nasbts lC_onrodnznIunlflo *P raebpsalr_enTuolMloadbilfey (G
e      t| C                                     ^o
rdz/usr/local/clang/include/absl/base/nullability.hI:n241f:o22F:o rnote: Texpanded from macro 'absl_nonnull'e
sti  n241g | (#
d      e| f                          ^i
ne /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | _#Ndoenfniunlel 
a      b| s                     ^l
_nullable _Nullable
      |                       ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from In file included from s2/s2closest_edge_query.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h../src/s2/s2coder.h::3023:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1angle.h::73328::
29In file included from :../src/s2/s2point.h :warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23  :
733In file included from  | /usr/local/clang/include/absl/status/status.h : 67s:
tIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.ht:i29c:
 /usr/local/clang/include/absl/strings/cord.hc:o927n:s43t:  swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
::st  r927i | n g *   a b s l _ n o n n u l l   M o v e d F r o m S t r i n g ( )C;o
r      d| R                            ^e
p*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dreefpi)n;e
       a| b                                          ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'_
No  n257n | u#ldle
f      i| n                     ^e
 absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2centroids.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2centroids.h::6750:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.h::2927:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2coder.h929::2326:
:/usr/local/clang/include/absl/status/status.h :warning: 751type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
61:   warning: 929type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      v751o | i d  sStwaatpi(cI nuliinntepRterp_*t  aPbosiln_tneornTnouRlelp (rshtsa)t;u
s      _| i                         ^n
te/usr/local/clang/include/absl/base/nullability.hr:n241a:l22::: Snote: texpanded from macro 'absl_nonnull'a
tu  s241R | e#pd*e faibnsel _anbosnln_unloln nru)l;l
       _| N                                                            ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2closest_edge_query.ccN:o18n:
nIn file included from u../src/s2/s2closest_edge_query.hl:l30
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:In file included from 17s2/s2centroids.cc:: 18warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2centroids.h:50:
  In file included from 932../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.hc:o23n:
s/usr/local/clang/include/absl/status/status.ht: 752c:h44a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n752u | l l asbtlaet idca tcao(n)s tc osntsatt;u
s      _| i                ^n
te/usr/local/clang/include/absl/base/nullability.hr:n257a:l23::: Snote: texpanded from macro 'absl_nullable'a
tu  s257R | e#pd*e faibnsel _anbosnln_unlull lRaebplTeo P_oNiunltlearb(l
e      
|                                                  ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2closest_edge_query.cci:n18e:
 In file included from a../src/s2/s2closest_edge_query.hb:s30l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:18:
In file included from ../src/s2/s2centroids.h:50:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnabIn file included from ls2/s2closest_point_query.cce:D18e:
bIn file included from u../src/s2/s2closest_point_query.hg:L29o:
gIn file included from (../src/s2/s2closest_point_query_base.hc:o39n:
sIn file included from t../src/s2/s2point_index.h :c27h:
aIn file included from r/usr/local/clang/include/absl/container/btree_map.h*: 66a:
bIn file included from s/usr/local/clang/include/absl/container/internal/btree.hl:_70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl:a198b:
lIn file included from e/usr/local/clang/include/absl/strings/str_cat.h :n116a:
mIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h):;23
:
      | /usr/local/clang/include/absl/strings/numbers.h                                  ^:
66:41/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
     66257 |  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b lien
t      _| t                      ^y
pe* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2convex_hull_query.ccn:o26n:
nIn file included from u../src/s2/s2convex_hull_query.hl:l25 :
_In file included from N../src/s2/s2cap.ho:n30n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |  In file included from  s2/s2closest_point_query.ccs:t18a:
tIn file included from i../src/s2/s2closest_point_query.hc: 29v:
oIn file included from i../src/s2/s2closest_point_query_base.hd: 39I:
nIn file included from c../src/s2/s2point_index.hr:e27m:
eIn file included from n/usr/local/clang/include/absl/container/btree_map.ht:S66y:
nIn file included from c/usr/local/clang/include/absl/container/internal/btree.hh:S70e:
mIn file included from (/usr/local/clang/include/absl/container/internal/layout.hM:u198t:
eIn file included from x/usr/local/clang/include/absl/strings/str_cat.h*: 116a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:_23non:
n/usr/local/clang/include/absl/strings/numbers.hu:l77l: 61m:u ,warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                        ^
   /usr/local/clang/include/absl/base/nullability.h77: | 241[:[22n:o dnote: iexpanded from macro 'absl_nonnull's
ca  r241d | ]#]d ebfoionle  Saibmspll_enAotnonfu(lalb s_lN:o:nsnturliln
g      _| v                     ^i
ew str, floatIn file included from *s2/s2convex_hull_query.cc :a26b:
sIn file included from l../src/s2/s2convex_hull_query.h_:n25o:
nIn file included from n../src/s2/s2cap.hu:l30l:
 In file included from o../src/s2/s1angle.hu:t28):
;In file included from 
../src/s2/s2point.h      :| 27                                                            ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/status/status.h22::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull':
29:
In file included from   /usr/local/clang/include/absl/strings/cord.h241: | 94#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hf:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a550b:s64l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   550_ | N o n n u l l 
        |                       ^ 
                     base_In file included from is2/s2closest_point_query.ccn:t18e:
rIn file included from n../src/s2/s2closest_point_query.ha:l29::
:In file included from P../src/s2/s2closest_point_query_base.he:r39T:
hIn file included from r../src/s2/s2point_index.he:a27d:
SIn file included from y/usr/local/clang/include/absl/container/btree_map.hn:c66h:
*In file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from _/usr/local/clang/include/absl/container/internal/layout.hn:o198n:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116 :
wIn file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h;:
23      :
| /usr/local/clang/include/absl/strings/numbers.h                                                               ^:
88:62/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
     88241 |  | [#[dneofdiinsec aarbds]l]_ nboononlu lSli m_pNloenAntuoldl(
a      b| s                     ^l
::string_view str, In file included from ds2/s2convex_hull_query.cco:u26b:
lIn file included from e../src/s2/s2convex_hull_query.h*: 25a:
bIn file included from s../src/s2/s2cap.hl:_30n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.ho:u27t:
)In file included from ;../src/s2/s2coder.h
:      23| :
                                                             ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e551f:i40n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  non551n | u l ls t_aNtoincn ublolo
l       | D                     ^e
crementSynchSem(Mutex* absl_In file included from ns2/s2closest_point_query.cco:n18n:
uIn file included from l../src/s2/s2closest_point_query.hl: 29m:
uIn file included from ,../src/s2/s2closest_point_query_base.h
:      39| :
                                       ^In file included from 
../src/s2/s2point_index.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2266::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'absl_nonnull'70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :241198 | :
#In file included from d/usr/local/clang/include/absl/strings/str_cat.he:f116i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :a23b:
s/usr/local/clang/include/absl/strings/numbers.hl:_98n:o60n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _No   n98n | u[l[ln
o      d| i                     ^s
card]] boolIn file included from  s2/s2convex_hull_query.ccS:i26m:
pIn file included from l../src/s2/s2convex_hull_query.he:A25t:
oIn file included from b../src/s2/s2cap.h(:a30b:
sIn file included from l../src/s2/s1angle.h:::28s:
tIn file included from r../src/s2/s2point.hi:n27g:
_In file included from v../src/s2/s2coder.hi:e23w:
 In file included from s/usr/local/clang/include/absl/status/status.ht:r67,:
 In file included from b/usr/local/clang/include/absl/status/internal/status_internal.ho:o29l:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l552l: 64o:u twarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                            ^  
552 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n ublals e__Nionntneurlnla
l      :| :                     ^P
erThreadSynch* absl_nonnull wIn file included from ,s2/s2closest_point_query.cc
:      18| :
                                                               ^In file included from 
../src/s2/s2closest_point_query.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2closest_point_query_base.h::2239::
 In file included from ../src/s2/s2point_index.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from   /usr/local/clang/include/absl/container/btree_map.h241: | 66#:
dIn file included from e/usr/local/clang/include/absl/container/internal/btree.hf:i70n:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.ha:b198s:
lIn file included from _/usr/local/clang/include/absl/strings/str_cat.hn:o116n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23 :
_/usr/local/clang/include/absl/strings/numbers.hN:o112n:n44u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  112 |                   In file included from  s2/s2convex_hull_query.cc : 26 :
 In file included from  ../src/s2/s2convex_hull_query.h : 25 :
 In file included from  ../src/s2/s2cap.h : 30:
 In file included from  ../src/s2/s1angle.hi:n28t:
_In file included from t../src/s2/s2point.hy:p27e:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
oIn file included from u/usr/local/clang/include/absl/strings/cord.ht:)94;:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                           ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::556241::3822::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 556# | d e fvionied  aLbosclk_SnloonwnLuololp (_SNyonncnhuWlali
t      P| a                     ^r
ams* absl_nonnull waitp, intIn file included from  s2/s2closest_point_query.ccf:l18a:
gIn file included from s../src/s2/s2closest_point_query.h):;29
:
      In file included from | ../src/s2/s2closest_point_query_base.h                                     ^:
39:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point_index.h::24127::
22In file included from :/usr/local/clang/include/absl/container/btree_map.h :66In file included from note: :
s2/s2closest_edge_query.ccexpanded from macro 'absl_nonnull'In file included from :
/usr/local/clang/include/absl/container/internal/btree.h18  ::
24170In file included from  | :
#../src/s2/s2closest_edge_query.hIn file included from d:/usr/local/clang/include/absl/container/internal/layout.he30:f:
198iIn file included from :
n../src/s2/s1angle.hIn file included from e:/usr/local/clang/include/absl/strings/str_cat.h 28:a:
116bIn file included from :
s../src/s2/s2point.hIn file included from l:/usr/local/clang/include/absl/strings/internal/stringify_sink.h_27:n:
23oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

      | /usr/local/clang/include/absl/strings/cord.h                     ^:
1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord In file included from Cs2/s2convex_hull_query.cco:r26d:
:In file included from :../src/s2/s2convex_hull_query.hA:d25v:
aIn file included from n../src/s2/s2cap.hc:e30A:
nIn file included from d../src/s2/s1angle.hR:e28a:
dIn file included from (../src/s2/s2point.hC:h27a:
rIn file included from I../src/s2/s2coder.ht:e23r:
aIn file included from t/usr/local/clang/include/absl/status/status.ho:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31i:
t/usr/local/clang/include/absl/synchronization/mutex.h,:
558      :| 35                                               ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   558note:  | expanded from macro 'absl_nonnull' 
 b  o241o | l# dLeofciknSel oawbWsilt_hnDoenandulliln e_(NMounHnouwl la
b      s| l                     ^_
nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from In file included from ../src/s2/s2closest_edge_query.hs2/s2convex_hull_query.cc::3026:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2convex_hull_query.h::2825:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2cap.h::2730:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6727:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2coder.h::2923:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::167267::
41In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
 In file included from 1672/usr/local/clang/include/absl/strings/internal/cordz_info.h | :i31n:
l/usr/local/clang/include/absl/synchronization/mutex.hi:n559e: 46v:o iwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
Cor  d559: | : A d v a n c e ( C h a r I t e r a t o r *   a b s l _ ncoonnnsutl lC ointd,i tsiiozne*_ ta bns_lb_yntuelsl)a b{l
e       | c                                        ^o
nd/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22                                             ^:
 /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'257
:23:   241note:  | expanded from macro 'absl_nullable'#
de  f257i | n#ed eafbisnle_ naobnsnlu_lnlu l_lNaobnlneu l_lN
u      l| l                     ^a
ble
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nul:
la/usr/local/clang/include/absl/strings/numbers.hb:l116e: 55W:a kwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
p(
      |                                  ^
  116 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l laabbslle:
:      i| n                      ^t
128* In file included from as2/s2convex_hull_query.ccb:s26l:
_In file included from n../src/s2/s2convex_hull_query.ho:n25n:
uIn file included from l../src/s2/s2cap.hl: 30o:
uIn file included from t../src/s2/s1angle.h):;28
:
      In file included from | ../src/s2/s2point.h                                                      ^:
27:
In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/status/status.h22::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull':
29:
In file included from   /usr/local/clang/include/absl/strings/cord.h241: | 94#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hf:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a581b:s38l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l581  | _ N o n n u lbla
s      e| _                     ^i
nternal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2closest_point_query.cc :a18b:
sIn file included from l../src/s2/s2closest_point_query.h_:n29o:
nIn file included from n../src/s2/s2closest_point_query_base.hu:l39l:
 In file included from _../src/s2/s2point_index.hN:o27n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                     ^:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |  In file included from  s2/s2convex_hull_query.cc : 26 :
 In file included from  ../src/s2/s2convex_hull_query.h : 25 :
 In file included from  ../src/s2/s2cap.h : 30 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94::
:In file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31t:
1/usr/local/clang/include/absl/synchronization/mutex.h2:8585*: 20a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u585l | l   ovuoti)d; 
T      r| a                                                       ^n
s(/usr/local/clang/include/absl/base/nullability.hM:u241H:o22w:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nheo wa)b;s l _/n/o nunsueldl  f_oNro nCnounldlV
a      r| -                     ^>
Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2closest_point_query.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2closest_point_query.h31::
29:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2closest_point_query_base.h586::3943:
:In file included from  ../src/s2/s2point_index.h:warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66  :
586In file included from  | /usr/local/clang/include/absl/container/internal/btree.h : voi70d:
 In file included from F/usr/local/clang/include/absl/container/internal/layout.he:r198(:
bIn file included from a/usr/local/clang/include/absl/strings/str_cat.hs:e116_:
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:e23r:
n/usr/local/clang/include/absl/strings/numbers.ha:l152:::37P:e rwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
read  S152y | nvcohi*d  aPbustlT_wnooDninguiltls
(      u| i                                          ^n
t3/usr/local/clang/include/absl/base/nullability.h2:_241t: 22i:,  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innoen naublsll _bnuofn)n;u
l      l|                                      ^_
Non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_noIn file included from ns2/s2convex_hull_query.ccn:u26l:
lIn file included from  ../src/s2/s2convex_hull_query.h_:N25o:
nIn file included from n../src/s2/s2cap.hu:l30l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: In file included from warning: s2/s2closest_point_query.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2closest_point_query.h:  29590:
 | In file included from  ../src/s2/s2closest_point_query_base.h :e39x:
pIn file included from l../src/s2/s2point_index.hi:c27i:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hM:u66t:
eIn file included from x/usr/local/clang/include/absl/container/internal/btree.h(:c70o:
nIn file included from s/usr/local/clang/include/absl/container/internal/layout.ht: 198v:
oIn file included from l/usr/local/clang/include/absl/strings/str_cat.ha:t116i:
lIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :M23u:
t/usr/local/clang/include/absl/strings/numbers.he:x156*: 55a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a156b | lbeo o/l* isganfoer_esdt*r/t)o 8{_}b
a      s| e                                       ^(
ab/usr/local/clang/include/absl/base/nullability.hs:l257:::23s:t rnote: iexpanded from macro 'absl_nullable'n
g_  v257i | e#wd etfeixnte,  aibnstl8__ntu*l laabbslle_ n_oNnunlullalb lvea
l      u| e                      ^,

      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2centroids.cc:23:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:In file included from 276s2/s2closest_point_query.cc::518::
 In file included from ../src/s2/s2closest_point_query.hwarning: :29type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from   ../src/s2/s2point_index.h276: | 27 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h :S662:
_In file included from C/usr/local/clang/include/absl/container/internal/btree.hH:E70C:
KIn file included from _/usr/local/clang/include/absl/container/internal/layout.hN:E198(:
dIn file included from e/usr/local/clang/include/absl/strings/str_cat.ht:,116 :
VIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hy:p23e:
(/usr/local/clang/include/absl/strings/numbers.h0:)162): 57<:<  warning: "type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Can'  t162  | ibnovoelr ssea.f eD_estterrtmoi6n4a_nbta s=e (0a.b"s;l
:      :| s    ^t
rin../src/s2/base/logging.hg:_37v:i21e:w  note: texpanded from macro 'S2_CHECK_NE'e
xt   ,37  | i#ndte6f4i_nte*  Sa2b_sClH_EnCoKn_nNuEl lC HvEaClKu_eN,E

            | |                                                         ^                    ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::241120::223::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'CHECK_NE'

  241   | 120# | d e fAiBnSeL _aLbOsGl__InNoTnEnRuNlAlL __CNHoEnCnKu_lNlE
_      I| M                     ^P
L((val1), #val1, (val2),In file included from  s2/s2closest_point_query.cc#:v18a:
lIn file included from 2../src/s2/s2closest_point_query.h):
29      :
| In file included from   ^../src/s2/s2closest_point_query_base.h
:39:
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from In file included from :../src/s2/s2point_index.hs2/s2convex_hull_query.cc51:::27263:
:
:In file included from In file included from  /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2convex_hull_query.h:note: :66expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'25:

:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2cap.h:   :705130:
 | :
In file included from  In file included from /usr/local/clang/include/absl/container/internal/layout.h ../src/s2/s1angle.h:A:198B28:
S:
LIn file included from In file included from _/usr/local/clang/include/absl/strings/str_cat.hL../src/s2/s2point.hO::G116_27:
I:
In file included from NIn file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hT../src/s2/s2coder.h:E:23R23:
N:
/usr/local/clang/include/absl/strings/numbers.hAIn file included from :L/usr/local/clang/include/absl/status/status.h165_::C6739H:
:EIn file included from  C/usr/local/clang/include/absl/status/internal/status_internal.hwarning: K:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_29
O:
PIn file included from (/usr/local/clang/include/absl/strings/cord.h  C:165h94 | e:
 cIn file included from  k/usr/local/clang/include/absl/strings/internal/cordz_info.h _:N E31 ,:
  /usr/local/clang/include/absl/synchronization/mutex.h! =: ,624  : v68 a: l  1warning:  ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  
v a l 1 _  t 624e x |  t  ,   eaxvpbaslll2i:c,:i ivtna ltM21u_2tt8ee*xx tL)ao
bc      sk| (lM  ^_un
toen/usr/local/clang/include/absl/log/internal/check_op.hnx:u&l68 lm: u22v :AaB lSnote: uLexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'e_
,I NiT   nE68tR |   bNa AswLe_h)iA;Tl
eT       R(| cI                                      ^oBn
sUtT/usr/local/clang/include/absl/base/nullability.h E:c_241hC:Aa22rP:*T U note: Raexpanded from macro 'absl_nonnull'Eb
Ds_l  B_241Yn | (u#ltdlheiafsbi)ln)ee 
 a      ab| bs                                                                   ^~~~ls_
ll_ongo_ninnutlelr n_aNlo_ncnhuelclk
_      o| p                     ^_
result          /usr/local/clang/include/absl/synchronization/mutex.h :\635
:      29| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/base/nullability.hs2/s2closest_point_query.cc::25718  ::
63523In file included from  | :../src/s2/s2closest_point_query.h  : 29enote: x:
pexpanded from macro 'absl_nullable'lIn file included from i
../src/s2/s2closest_point_query_base.hc:  i39t257:
  | In file included from #M../src/s2/s2point_index.hud:et27efx:
LiIn file included from on/usr/local/clang/include/absl/container/btree_map.hec: ka66b(:
sMIn file included from ul/usr/local/clang/include/absl/container/internal/btree.h_t:ne70xu:
l*In file included from  la/usr/local/clang/include/absl/container/internal/layout.hba:sbl198_l:
enIn file included from o /usr/local/clang/include/absl/strings/str_cat.hn_:Nn116uu:
llIn file included from ll amb/usr/local/clang/include/absl/strings/internal/stringify_sink.hlu:e)23
 :
A      /usr/local/clang/include/absl/strings/numbers.hB| :                      ^S166L
:_57E:X Cwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
SIVE  _166L | ObCoKo_lF UsNaCfTeI_OsNt(rmtuo)u
8      _| b                            ^a
se/usr/local/clang/include/absl/base/nullability.h(:a241b:s22l:: :note: sexpanded from macro 'absl_nonnull't
ri  n241g | _#vdieefwi ntee xatb,s lu_innoIn file included from tns2/s2centroids.cc8n:u_l23lt :
*_In file included from  N../src/s2/s2pointutil.hao:bn27sn:
lu../src/s2/util/math/matrix3x3.h_l:nl276o
:n      5n| :u                     ^ l
warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
va../src/s2/base/logging.hl:u37e:,21
:       | note:                                                         ^expanded from macro 'S2_CHECK_NE'

/usr/local/clang/include/absl/base/nullability.h:   24137: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241S | 2#_dCeHIn file included from fEs2/s2convex_hull_query.cciC:nKe26_ N:
aEbIn file included from  sC../src/s2/s2convex_hull_query.hlH:_E25nCo:
Kn_In file included from nN../src/s2/s2cap.huE:l
30l      :
 | In file included from _                    ^../src/s2/s1angle.hN
:o28n/usr/local/clang/include/absl/log/check.h:
n:uIn file included from 120l../src/s2/s2point.h:l:3
27:      :
 | In file included from note:                      ^../src/s2/s2coder.hexpanded from macro 'CHECK_NE'
:
23:
In file included from /usr/local/clang/include/absl/status/status.h  :12067 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hL:O94G:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from N:s2/s2closest_point_query.ccT31:E:
18R/usr/local/clang/include/absl/synchronization/mutex.h:
N:In file included from A641../src/s2/s2closest_point_query.hL::_6829C::
H In file included from E../src/s2/s2closest_point_query_base.hwarning: C:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]K39_
:
NIn file included from E../src/s2/s2point_index.h_:I  M27641P:
L | In file included from ( /usr/local/clang/include/absl/container/btree_map.h( :ve66ax:
plIn file included from l1/usr/local/clang/include/absl/container/internal/btree.h)i:,c70 i:
#tIn file included from v /usr/local/clang/include/absl/container/internal/layout.haM:lu1981t:
,eIn file included from  x/usr/local/clang/include/absl/strings/str_cat.h(L:vo116ac:
lkIn file included from (2/usr/local/clang/include/absl/strings/internal/stringify_sink.hM):u,23t :
e#/usr/local/clang/include/absl/strings/numbers.hxv:&a168 l:m259u): 
 A      warning: B| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S  ^
L
_I/usr/local/clang/include/absl/log/internal/check_impl.hN  :T168E51 | R:bN3oA:oL l_note:  Aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'sT
TaRfIeB   _U51sT | t Er _tAoCuAB1P6ST_UbLRaE_sDeL(_OaBGbY_sI(lNt:Th:EisRst)NrA,iL
n_      gC| _H                                                                   ^~~~vE
iCeKw_ OtPe(xCth,e cuki_nNtE1,6 _!t=*,  avbasll1_,n ovnanlu1l/usr/local/clang/include/absl/synchronization/mutex.h_lt: e649vx:at29l,:u  evwarning: ,atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
l
      2| ,                                                          ^ 
v  a/usr/local/clang/include/absl/base/nullability.h649l:2 | _241 t: ee22xx:pt )lnote: 
iexpanded from macro 'absl_nonnull'      c
i| t     ^M241u
 | t#/usr/local/clang/include/absl/log/internal/check_op.hedx:eL75ofc:ikn61e(: M aunote: btexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'sel
x_*n    aob75ns | n lu _AlBnloS Ln_n_NLuoOlnGln_u IlmlNu
T,E      R N| AcL                     ^o_
CnHsEtC KC(o:n:daibtsilo:n:&i mcpolIn file included from nis2/s2closest_point_query.ccdc):i
18t      _:
| c                            ^aIn file included from 
s../src/s2/s2closest_point_query.ht:/usr/local/clang/include/absl/base/nullability.h<29c::
o241In file included from n:../src/s2/s2closest_point_query_base.hs22:t:39  :
cIn file included from hnote: ../src/s2/s2point_index.haexpanded from macro 'absl_nonnull':r
27*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.h  b:241s66l | :
#_In file included from dn/usr/local/clang/include/absl/container/internal/btree.heo:nf70in:
unIn file included from le/usr/local/clang/include/absl/container/internal/layout.h l:>a198(b:
 s lIn file included from _ n/usr/local/clang/include/absl/strings/str_cat.h o: n116\n
:
u      In file included from l| /usr/local/clang/include/absl/strings/internal/stringify_sink.hl                                                            ^ :_
23N:
o/usr/local/clang/include/absl/base/nullability.hn/usr/local/clang/include/absl/strings/numbers.h:n:241u170:l:l22
59:      : |  note:                      ^warning: expanded from macro 'absl_nonnull'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #170d | ebfoionle  saabfsel__sntorntnouul3l2 __bNaosnen(ualbls
l      :| :                     ^s
tring_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnulIn file included from ls2/s2convex_hull_query.cc :v26a:
lIn file included from u../src/s2/s2convex_hull_query.he:,25
:
      In file included from | ../src/s2/s2cap.h                                                          ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from : ../src/s2/s2point.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_670N:o74n:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l

      |                      ^
  670 |   explicit ReaderMuteIn file included from xs2/s2closest_point_query.ccL:o18c:
kIn file included from (../src/s2/s2closest_point_query.hM:u29t:
eIn file included from x../src/s2/s2closest_point_query_base.h&: 39m:
uIn file included from  ../src/s2/s2point_index.hA:B27S:
LIn file included from _/usr/local/clang/include/absl/container/btree_map.hI:N66T:
EIn file included from R/usr/local/clang/include/absl/container/internal/btree.hN:A70L:
_In file included from A/usr/local/clang/include/absl/container/internal/layout.hT:T198R:
IIn file included from B/usr/local/clang/include/absl/strings/str_cat.hU:T116E:
_In file included from C/usr/local/clang/include/absl/strings/internal/stringify_sink.hA:P23T:
U/usr/local/clang/include/absl/strings/numbers.hR:E175D:_41B:Y (warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
is))  
175       | |                                                                           ^~~~ 
                       absl::uint128/usr/local/clang/include/absl/synchronization/mutex.h*: 678a:b35s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul  l678  | v a leuxep,l iicnitt  bRaesaed)e;r
M      u| t                                        ^e
xL/usr/local/clang/include/absl/base/nullability.ho:c241k:(22M:u tnote: eexpanded from macro 'absl_nonnull'x
*   a241b | s#ld_enfoinnneu lalb smlu_)n oAnBnSuLl_lS H_ANRoEnDn_uLlOlC
K      _| F                     ^U
NCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2closest_point_query.ccn:n18u:
lIn file included from l../src/s2/s2closest_point_query.h :_29N:
oIn file included from n../src/s2/s2closest_point_query_base.hn:u39l:
lIn file included from 
../src/s2/s2point_index.h      :| 27                     ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* In file included from as2/s2convex_hull_query.ccb:s26l:
_In file included from n../src/s2/s2convex_hull_query.ho:n25n:
uIn file included from l../src/s2/s2cap.hl: 30R:
oIn file included from u../src/s2/s1angle.hn:d28T:
rIn file included from i../src/s2/s2point.hp:D27o:
uIn file included from b../src/s2/s2coder.hl:e23T:
oIn file included from B/usr/local/clang/include/absl/status/status.hu:f67f:
eIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h(:d29o:
uIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94 :
dIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31h:
a/usr/local/clang/include/absl/synchronization/mutex.hr:*681 :a74b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
onnul  l681  | b u fefxeprl)i;c
i      t|        ^R
ea/usr/local/clang/include/absl/base/nullability.hd:e241r:M22u:t enote: xexpanded from macro 'absl_nonnull'L
oc  k241( | M#udteefxi&n em ua bAsBlS_Ln_oInNnTuElRlN A_LN_oAnTnTuRlIlB
U      T| E                     ^_
CAPTUREDIn file included from _s2/s2closest_point_query.ccB:Y18(:
tIn file included from h../src/s2/s2closest_point_query.hi:s29):
,In file included from 
../src/s2/s2closest_point_query_base.h      :| 39                                                                         ^~~~:

In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char*/usr/local/clang/include/absl/synchronization/mutex.h :a689b:s35l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   689R | o u nedxTprliipcDiotu bRleeaTdoeBruMfufteerx(Ldoocukb(lMeu tde,x *c haabrs*l _anbosnln_unloln nmuul,l  cbounfsfte rC)o;n
d      i| t                                                           ^i
on/usr/local/clang/include/absl/base/nullability.h&: 241c:o22n:d )note: 
expanded from macro 'absl_nonnull'      
|                                   ^  
241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBIn file included from us2/s2convex_hull_query.ccf:f26e:
rIn file included from (../src/s2/s2convex_hull_query.hf:l25o:
aIn file included from t../src/s2/s2cap.h :f30,:
 In file included from c../src/s2/s1angle.hh:a28r:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
bIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hf:f29e:
rIn file included from )/usr/local/clang/include/absl/strings/cord.h;:
94      :
| In file included from                                                          ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h241::71022::74 : note: warning: expanded from macro 'absl_nonnull''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  241 | #d  e710f | i n ee xapblsilc_into nWnruiltle r_MNuotnenxuLlolc
k      (| M                     ^u
tex& mu ABSL_INTEIn file included from Rs2/s2closest_point_query.ccN:A18L:
_In file included from A../src/s2/s2closest_point_query.hT:T29R:
IIn file included from B../src/s2/s2closest_point_query_base.hU:T39E:
_In file included from C../src/s2/s2point_index.hA:P27T:
UIn file included from R/usr/local/clang/include/absl/container/btree_map.hE:D66_:
BIn file included from Y/usr/local/clang/include/absl/container/internal/btree.h(:t70h:
iIn file included from s/usr/local/clang/include/absl/container/internal/layout.h):)198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h                                                                         ^~~~:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsT/usr/local/clang/include/absl/synchronization/mutex.ho:718B:u35f:f ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
dou  b718l | e   de,x pclhiacri*t  aWbrsilt_enroMnuntuelxlL obcukf(fMeurt)e;x
*       | a                                         ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
mu  )241
 |       #| d                                  ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _NonnullIn file included from 
s2/s2closest_point_query.cc      :| 18                     ^:

In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7:In file included from  In file included from s2/s2closest_edge_query.ccwarning: s2/s2convex_hull_query.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:18
26:
:
In file included from In file included from   ../src/s2/s2closest_edge_query.h../src/s2/s2convex_hull_query.h198:In file included from :s2/s2closest_cell_query.cc | 3025:c:
:
18hIn file included from In file included from :
a../src/s2/s1angle.h../src/s2/s2cap.hIn file included from r::../src/s2/s2closest_cell_query.h*2830: :
:
30aIn file included from In file included from :
b../src/s2/s2point.h../src/s2/s1angle.hIn file included from s::../src/s2/s2cell_index.hl2728:_:
:
26nIn file included from In file included from :
o../src/s2/s2coder.h../src/s2/s2point.hIn file included from n::/usr/local/clang/include/absl/container/flat_hash_set.hn2327:u:
:
45lIn file included from In file included from :
l/usr/local/clang/include/absl/status/status.h../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/raw_hash_set.h :::F67232663a:
:
:sIn file included from t53I/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/status/status.h:n:: t11967warning: T::
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o14In file included from 
B:/usr/local/clang/include/absl/status/internal/status_internal.hu :f f29ewarning: 2663type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
r | ( 
In file included from i /usr/local/clang/include/absl/strings/cord.hn :t 3   942 _119:
Tt& | In file included from  &i /usr/local/clang/include/absl/strings/internal/cordz_info.h ,v : acS31tlah:
uta/usr/local/clang/include/absl/synchronization/mutex.heur:*  As722aBbR:SsLe74l__p:InN* oT warning: nEna'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]RuNb
lAlsL _l  bAu_722TfTn | ofRe rnI B)Une
xTu      pEll| l_ iC      ^CcAl
iPto/usr/local/clang/include/absl/base/nullability.hT Un:eWR241(rE:D
i22t_e      :BrY|  M(             ^note: utt
expanded from macro 'absl_nonnull'he
ix/usr/local/clang/include/absl/base/nullability.hs  L:)241o241c) | :#kd(
M22e      fui:| tne                                                     ^~~~ex
note:  expanded from macro 'absl_nonnull'&a 
bms  ul 241_A | n#BoSdnLenf_uIilNnlT eE_R NNoaAnbLsn_ulAl_TlTn
Ro      nIn| uB                     ^Ul
lT E__NCoAIn file included from nPs2/s2closest_point_query.ccnT:Uu18Rl:
lE
In file included from D      ../src/s2/s2closest_point_query.h_| :B                     ^29Y
:
(In file included from t../src/s2/s2closest_point_query_base.hh:i39s:
)In file included from ,../src/s2/s2point_index.h
:      27| :
                                                                         ^~~~In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198In file included from  | s2/s2closest_edge_query.ccc:h18a:
/usr/local/clang/include/absl/synchronization/mutex.hrIn file included from :*../src/s2/s2closest_edge_query.h731 ::a3035b:
:sIn file included from  l../src/s2/s1angle.hwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:n
28o:
n  In file included from n731../src/s2/s2point.hu | l: l 27 eF:
xapIn file included from slt../src/s2/s2coder.hiIc:nitt23T o:
WBrIn file included from uif/usr/local/clang/include/absl/status/status.htf:ee67rr:
M(/usr/local/clang/include/absl/status/internal/status_internal.hui:tne125tx:3L214/usr/local/clang/include/absl/container/internal/raw_hash_set.ho_::ctk 2692 (iM:warning: ,u 58ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t:ehx
 a*warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r 125
*a  | bas   bSl2692st_ | l an_ nto o unn snn uRucloellnpl sb* tu  mafTf&eurb ,) svl
cao_      lnun| s                                                    ^te o
n C/usr/local/clang/include/absl/base/nullability.honA:BnSu241dLil:l_t22i I:oCNl nT&onote: E Rnexpanded from macro 'absl_nonnull'cNoe
AnLA  d_)n241A
d | T      TU#n| RdIr                                  ^eBfe
fU(i/usr/local/clang/include/absl/base/nullability.hT
n:E      e241 _a| :Cb             ^22AsP
:lT_UnRoE D/usr/local/clang/include/absl/base/nullability.hnnote: _:nexpanded from macro 'absl_nonnull'Bu
l241Yl(   _:t241hN22 | ios:#nd)e n)uflnote: 
expanded from macro 'absl_nonnull'iln      

e|                                                                ^~~~   | a                     ^b
241
s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116In file included from :
s2/s2closest_edge_query.ccIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h18::
23In file included from :
../src/s2/s2closest_edge_query.h/usr/local/clang/include/absl/strings/numbers.h::30199:
:In file included from 5../src/s2/s1angle.h:: 28warning: :
'diagnose_if' is a clang extension [-Wgcc-compat]In file included from 
../src/s2/s2point.h:27:
  In file included from 199../src/s2/s2coder.h | : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.hA:B67S:
L/usr/local/clang/include/absl/status/internal/status_internal.h_:I128N:T14E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_NE  E128D | _ M ISNt_aStIuZsER(ebpu*f faebrs,l _knFoansntuTlolB uCflfoenreSAinzdeU)n;r
e      f| (    ^)
 c/usr/local/clang/include/absl/base/macros.ho:n251s:t18;:
       note: | expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'             ^

  /usr/local/clang/include/absl/base/nullability.h251: | 241 : 22_:_ anote: texpanded from macro 'absl_nonnull't
ri  b241u | t#ed_e_f(i(ndei aagbnsolIn file included from s_/usr/local/clang/include/absl/container/internal/raw_hash_set.hs2/s2convex_hull_query.ccen::_o273426in::
fn65In file included from (u:../src/s2/s2convex_hull_query.h_l lwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_ 25
b_:
uNIn file included from i lo../src/s2/s2cap.h2734tn: | i n30n _ u:
o blIn file included from  j l../src/s2/s1angle.he c
: t       28_ s| :
 i                      ^In file included from z 
../src/s2/s2point.he :( 27O :
b In file included from j ../src/s2/s2coder.h,T: &230&:
) In file included from  v/usr/local/clang/include/absl/status/status.h<a: l67Nu,:
e In file included from  \/usr/local/clang/include/absl/status/internal/status_internal.hA
:B      29S| :
L                 ^_In file included from 
I/usr/local/clang/include/absl/strings/cord.hN:T94E:
RIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hA:L31_:
A/usr/local/clang/include/absl/synchronization/mutex.hT:T801R:In file included from I20s2/s2closest_point_query.ccB::U 18T:
warning: EIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_../src/s2/s2closest_point_query.h
C:A29P:
  TIn file included from 801U../src/s2/s2closest_point_query_base.h | R: E39 DC:
_oIn file included from Bn../src/s2/s2point_index.hYd:(i27tt:
hiIn file included from io/usr/local/clang/include/absl/container/btree_map.hsn:)(66)b:

oIn file included from       o/usr/local/clang/include/absl/container/internal/btree.h| l:                                                                ^~~~ 70
(:
*In file included from a/usr/local/clang/include/absl/container/internal/layout.hb:s198l:
_In file included from n/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl: 23f:
u/usr/local/clang/include/absl/strings/numbers.hn:c200):(7v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s200l | _cnhualrl*a baiblsilt_yn_ounnnkunlolw nF)a,s
t      I| n                   ^t
ToB/usr/local/clang/include/absl/base/nullability.hu:f241f:e22r:( unote: iexpanded from macro 'absl_nonnull'n
t3  2241_ | t# dne,f icnhea ra*b salb_snlo_nnnounlnlu l_lN oonuntu_lslt
r      )| 
                     ^      
|       ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2convex_hull_query.cc22::26 :
In file included from note: ../src/s2/s2convex_hull_query.hexpanded from macro 'absl_nonnull':
25:
In file included from   ../src/s2/s2cap.h241: | 30#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
94      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_point_query.cc:18  :
801In file included from  | ../src/s2/s2closest_point_query.h : 29C:
oIn file included from n../src/s2/s2closest_point_query_base.hd:i39t:
iIn file included from o../src/s2/s2point_index.hn:(27b:
oIn file included from o/usr/local/clang/include/absl/container/btree_map.hl: 66(:
*In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s70l:
_In file included from n/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl: 116f:
uIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hc:)23(:
v/usr/local/clang/include/absl/strings/numbers.ho:i200d:*54 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l200l | acbhialri*t ya_busnlk_nnoownnn)u,l
l       | F                                            ^a
st/usr/local/clang/include/absl/base/nullability.hI:n289t:T34o:B unote: fexpanded from macro 'absl_nullability_unknown'f
er(  u289i | n#td3e2f_itn en ,a bcshla_rn*u lalbasbli_lniotnyn_uulnlk noouwtn_ s_tNru)l
l      _| u                                                     ^n
sp/usr/local/clang/include/absl/base/nullability.he:c241i:f22i:e dnote: 
expanded from macro 'absl_nonnull'      
|                                  ^  
241 | #define absl_noIn file included from ns2/s2convex_hull_query.ccn:u26l:
lIn file included from  ../src/s2/s2convex_hull_query.h_:N25o:
nIn file included from n../src/s2/s2cap.hu:l30l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |           In file included from  s2/s2closest_point_query.cc :v18o:
iIn file included from d../src/s2/s2closest_point_query.h*: 29a:
bIn file included from s../src/s2/s2closest_point_query_base.hl:_39n:
uIn file included from l../src/s2/s2point_index.hl:a27b:
iIn file included from l/usr/local/clang/include/absl/container/btree_map.hi:t66y:
_In file included from u/usr/local/clang/include/absl/container/internal/btree.hn:k70n:
oIn file included from w/usr/local/clang/include/absl/container/internal/layout.hn: 198a:
rIn file included from g/usr/local/clang/include/absl/strings/str_cat.h):;116
:
      In file included from | /usr/local/clang/include/absl/strings/internal/stringify_sink.h                  ^:
23:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/numbers.h::289201::345::  note: warning: expanded from macro 'absl_nullability_unknown''diagnose_if' is a clang extension [-Wgcc-compat]

  289 |   #201d | e f i n eA BaSbLs_lI_NnTuElRlNaAbLi_lNiEtEyD__uMnIkNn_oSwInZ E_(Nouultl__sutnrs,p ekcFiafsiteTdo
B      u| f                                 ^f
erSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 | In file included from  s2/s2convex_hull_query.cc :_26_:
aIn file included from t../src/s2/s2convex_hull_query.ht:r25i:
bIn file included from u../src/s2/s2cap.ht:e30_:
_In file included from (../src/s2/s1angle.h(:d28i:
aIn file included from g../src/s2/s2point.hn:o27s:
eIn file included from _../src/s2/s2coder.hi:f23(:
_In file included from _/usr/local/clang/include/absl/status/status.hb:u67i:
lIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hi:n29_:
oIn file included from b/usr/local/clang/include/absl/strings/cord.hj:e94c:
tIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hs:i31z:
e/usr/local/clang/include/absl/synchronization/mutex.h(:O814b:j20,:  0warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
< N,   814\ | 
        | C                 ^o
ndition(booIn file included from ls2/s2closest_point_query.cc :(18*:
aIn file included from b../src/s2/s2closest_point_query.hs:l29_:
nIn file included from o../src/s2/s2closest_point_query_base.hn:n39u:
lIn file included from l../src/s2/s2point_index.h :f27u:
nIn file included from c/usr/local/clang/include/absl/container/btree_map.h):(66T:
*In file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from _/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from a/usr/local/clang/include/absl/strings/str_cat.hb:i116l:
iIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.hy:_23u:
n/usr/local/clang/include/absl/strings/numbers.hk:n202o:w7n:) ,warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                    ^  
202 | c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf iFnaes taIbnstlT_onBounfnfuelrl( i_nNto6n4n_utl li
,       | c                     ^h
ar* absIn file included from ls2/s2convex_hull_query.cc_:n26o:
nIn file included from n../src/s2/s2convex_hull_query.hu:l25l:
 In file included from b../src/s2/s2cap.hu:f30f:
eIn file included from r../src/s2/s1angle.h):
28      :
| In file included from       ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e94f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l814_:n42o:n nwarning: utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
l _  N814o | n n uCloln
d      i| t                     ^i
on(bool (*In file included from as2/s2closest_point_query.ccb:s18l:
_In file included from n../src/s2/s2closest_point_query.ho:n29n:
uIn file included from l../src/s2/s2closest_point_query_base.hl: 39f:
uIn file included from n../src/s2/s2point_index.hc:)27(:
TIn file included from */usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n70u:
lIn file included from l/usr/local/clang/include/absl/container/internal/layout.ha:b198i:
lIn file included from i/usr/local/clang/include/absl/strings/str_cat.ht:y116_:
uIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hk:n23o:
w/usr/local/clang/include/absl/strings/numbers.hn:)202,:
53      :|                                           ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:289:34:   202 | note: cexpanded from macro 'absl_nullability_unknown'h
ar*   289a | b#sdle_fnionnen ualbls lF_ansutlIlnatbTiolBiutfyf_eurn(kinnotw6n4 __tN uil,l _cuhnasrp*e caibfsile_dn
o      n| n                                 ^u
ll buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2convex_hull_query.cc :26note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2convex_hull_query.h:25  :
241In file included from  | ../src/s2/s2cap.h#:d30e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullabiIn file included from ls2/s2closest_point_query.cci:t18y:
_In file included from u../src/s2/s2closest_point_query.hn:k29n:
oIn file included from w../src/s2/s2closest_point_query_base.hn: 39a:
rIn file included from g../src/s2/s2point_index.h):;27
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h               ^:
66:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h::28970::
34In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'absl_nullability_unknown'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116  :
289In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n203e: 5a:b swarning: l'diagnose_if' is a clang extension [-Wgcc-compat]_
nul  l203a | b i l i tAyB_SuLn_kInNoTwEnR N_ANLu_lNlE_EuDn_sMpIeNc_iSfIiZeEd(
b      u| f                                 ^f
er, kFastToBufferSize);
      |     ^In file included from 
s2/s2convex_hull_query.cc:26/usr/local/clang/include/absl/base/macros.h:
:In file included from 251../src/s2/s2convex_hull_query.h::1825::
 In file included from ../src/s2/s2cap.hnote: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'30
:
In file included from ../src/s2/s1angle.h:  28251:
 | In file included from  ../src/s2/s2point.h :_27_:
aIn file included from t../src/s2/s2coder.ht:r23i:
bIn file included from u/usr/local/clang/include/absl/status/status.ht:e67_:
_In file included from (/usr/local/clang/include/absl/status/internal/status_internal.h(:d29i:
aIn file included from g/usr/local/clang/include/absl/strings/cord.hn:o94s:
eIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hi:f31(:
_/usr/local/clang/include/absl/synchronization/mutex.h_:b830u:i14l:t iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
obj  e830c | t _ s i z e (bOobojl,  (0*)a b<s lN_,n o\n
n      u| l                 ^l
 func)(T* absIn file included from ls2/s2closest_point_query.cc_:n18u:
lIn file included from l../src/s2/s2closest_point_query.ha:b29i:
lIn file included from i../src/s2/s2closest_point_query_base.ht:y39_:
uIn file included from n../src/s2/s2point_index.hk:n27o:
wIn file included from n/usr/local/clang/include/absl/container/btree_map.h):,66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h             ^:
70:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.h::241198::
22In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
241/usr/local/clang/include/absl/strings/numbers.h | :#204d:e7f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l204_ | ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^F
astInIn file included from ts2/s2convex_hull_query.ccT:o26B:
uIn file included from f../src/s2/s2convex_hull_query.hf:e25r:
(In file included from u../src/s2/s2cap.hi:n30t:
6In file included from 4../src/s2/s1angle.h_:t28 :
iIn file included from ,../src/s2/s2point.h :c27h:
aIn file included from r../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hb:u94f:
fIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hr:)31
:
      /usr/local/clang/include/absl/synchronization/mutex.h| :      ^830
:36:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'830
 |     241  |  # d ebfoionle  (a*basbls_ln_onnonnunlull l_ Nfounnncu)l(lT
*       | a                     ^b
sl_nullabilityIn file included from _s2/s2closest_point_query.ccu:n18k:
nIn file included from o../src/s2/s2closest_point_query.hw:n29):
,In file included from 
../src/s2/s2closest_point_query_base.h      :| 39                                   ^:

In file included from ../src/s2/s2point_index.h/usr/local/clang/include/absl/base/nullability.h::27289:
:In file included from 34/usr/local/clang/include/absl/container/btree_map.h:: 66:
note: In file included from expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h289: | 198#:
dIn file included from e/usr/local/clang/include/absl/strings/str_cat.hf:i116n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n204u:l54l:a bwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ity_  u204n | kcnhoawrn*  _aNbuslll__nuonnsnpuelcli fFiaesdt
I      n| t                                 ^T
oBuffer(uint64_t i, charIn file included from *s2/s2convex_hull_query.cc :a26b:
sIn file included from l../src/s2/s2convex_hull_query.h_:n25o:
nIn file included from n../src/s2/s2cap.hu:l30l:
 In file included from b../src/s2/s1angle.hu:f28f:
eIn file included from r../src/s2/s2point.h):
27      :
| In file included from                                                      ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e831 :a46b:s lwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
onnu  l831l |   _ N o n n utlylp
e      n| a                     ^m
e absl::type_identity<T>::type* absl_nullabiIn file included from ls2/s2closest_point_query.cci:t18y:
_In file included from u../src/s2/s2closest_point_query.hn:k29n:
oIn file included from w../src/s2/s2closest_point_query_base.hn:
39      :
| In file included from                                              ^../src/s2/s2point_index.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h289::6634:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.h:note: 70expanded from macro 'absl_nullability_unknown':

In file included from /usr/local/clang/include/absl/container/internal/layout.h:  198289:
 | In file included from #/usr/local/clang/include/absl/strings/str_cat.hd:e116f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23a:
b/usr/local/clang/include/absl/strings/numbers.hs:l205_:n5u:l lwarning: a'diagnose_if' is a clang extension [-Wgcc-compat]b
ili  t205y | _ u n k nAoBwSnL __INNuTlElR_NuAnLs_pNeEcEiDf_iMeIdN
_      S| I                                 ^Z
E(buffer, kFastToBufferSize);In file included from 
s2/s2convex_hull_query.cc      :| 26    ^:

In file included from ../src/s2/s2convex_hull_query.h:/usr/local/clang/include/absl/base/macros.h25::
251In file included from :../src/s2/s2cap.h18::30 :
In file included from note: ../src/s2/s1angle.hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
28:
In file included from ../src/s2/s2point.h  :25127 | :
 In file included from  ../src/s2/s2coder.h_:_23a:
tIn file included from t/usr/local/clang/include/absl/status/status.hr:i67b:
uIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:_29_:
(In file included from (/usr/local/clang/include/absl/strings/cord.hd:i94a:
gIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:s31e:
_/usr/local/clang/include/absl/synchronization/mutex.hi:f844(:_10_:b uwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ti  n844_ | o b j e c t _Ts*i zaeb(sOlb_jn,o n0n)u l<l  No,b j\e
c      t| ,                 ^

      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2closest_point_query.cc  :24118 | :
#In file included from d../src/s2/s2closest_point_query.he:f29i:
nIn file included from e../src/s2/s2closest_point_query_base.h :a39b:
sIn file included from l../src/s2/s2point_index.h_:n27o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:
 In file included from _/usr/local/clang/include/absl/container/internal/btree.hN:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h                     ^:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | charIn file included from *s2/s2convex_hull_query.cc :a26b:
sIn file included from l../src/s2/s2convex_hull_query.h_:n25o:
nIn file included from n../src/s2/s2cap.hu:l30l:
 In file included from F../src/s2/s1angle.ha:s28t:
IIn file included from n../src/s2/s2point.ht:T27o:
BIn file included from u../src/s2/s2coder.hf:f23e:
rIn file included from (/usr/local/clang/include/absl/status/status.hi:n67t:
1In file included from 2/usr/local/clang/include/absl/status/internal/status_internal.h8: 29i:
,In file included from  /usr/local/clang/include/absl/strings/cord.hc:h94a:
rIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_845n:o45n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 bu  f845f | e r ) 
        |        ^b
oo/usr/local/clang/include/absl/base/nullability.hl: 241(:a22b:s lnote: :expanded from macro 'absl_nonnull':
ty  p241e | _#iddeefnitniet ya<bTs>l:_:ntoynpneu:l:l*  _aNbosnln_unloln
n      u| l                     ^l
 method)()In file included from )s2/s2closest_point_query.cc;:
18      :
| In file included from                                             ^../src/s2/s2closest_point_query.h
:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_point_query_base.h241::3922:
:In file included from  ../src/s2/s2point_index.h:note: 27expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/btree_map.h:  66241:
 | In file included from #/usr/local/clang/include/absl/container/internal/btree.hd:e70f:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.he: 198a:
bIn file included from s/usr/local/clang/include/absl/strings/str_cat.hl:_116n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:u23l:
l/usr/local/clang/include/absl/strings/numbers.h :_206N:o52n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^  
206 | char* absl_nonnull FastIntToIn file included from Bs2/s2convex_hull_query.ccu:f26fer:
(In file included from i../src/s2/s2convex_hull_query.hn:t251:
2In file included from 8../src/s2/s2cap.h :i30,:
 In file included from c../src/s2/s1angle.hh:a28r:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
bIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hf:f29e:
rIn file included from )/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                                   ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/synchronization/mutex.h::22850:: 16:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 |   #850d | e f i n e   acbosnls_tn oTn*n ualbls l__Nnoonnnnuullll
       o| b                     ^j
ect,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2closest_point_query.cc_:N18o:
nIn file included from n../src/s2/s2closest_point_query.hu:l29l:

In file included from       ../src/s2/s2closest_point_query_base.h| :                     ^39
:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hs2/s2convex_hull_query.cc::2326:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2convex_hull_query.h::20725::
5In file included from :../src/s2/s2cap.h :30warning: :
'diagnose_if' is a clang extension [-Wgcc-compat]In file included from 
../src/s2/s1angle.h:28:
In file included from   ../src/s2/s2point.h207: | 27 :
 In file included from  ../src/s2/s2coder.h :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:I67N:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hR:N29A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hN:E94E:
DIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hM:I31N:
_/usr/local/clang/include/absl/synchronization/mutex.hS:I851Z:E45(:b uwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
er,   851k | F a s t T o Bbuofofle r(1a2b8sSli:z:et)y;p
e      _| i    ^d
en/usr/local/clang/include/absl/base/macros.ht:i251t:y18<:T >note: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
typ  e251: | : *  _a_bastlt_rniobnuntuel_l_ (m(edtihaogdn)o(s)e
_      i| f                                            ^(
__/usr/local/clang/include/absl/base/nullability.hb:u241i:l22t:i nnote: _expanded from macro 'absl_nonnull'o
bj  e241c | t#_dseifzien(eO bajb,s l0_)n o<n nNu,l l\ 
_      N| o                 ^n
null
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.hIn file included from :s2/s2convex_hull_query.cc70::
26In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :../src/s2/s2convex_hull_query.h198::
25In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :../src/s2/s2cap.h116::
30In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :../src/s2/s1angle.h23::
28/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 208../src/s2/s2point.h::727::
 In file included from ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
208In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.hc:h29a:
rIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u855l:l34 :F awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
Int  T855o | B u fefxeprl(iuciintt 1C2o8n dii,t icohna(rc*o nasbts lb_onooln*n ualbls lb_unfofnenru)l
l       | c      ^o
nd/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                                 ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* abIn file included from ss2/s2convex_hull_query.ccl:_26n:
oIn file included from n../src/s2/s2convex_hull_query.hn:u25l:
lIn file included from  ../src/s2/s2cap.hF:a30s:
tIn file included from I../src/s2/s1angle.hn:t28T:
oIn file included from B../src/s2/s2point.hu:f27f:
eIn file included from r../src/s2/s2coder.h(:u23i:
nIn file included from t/usr/local/clang/include/absl/status/status.h1:2678:
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hIn file included from a/usr/local/clang/include/absl/strings/cord.hr:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n886n:u31l:l  warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ffe  r886) | 
        | e                                                    ^x
pl/usr/local/clang/include/absl/base/nullability.hi:c241i:t22 :C onote: nexpanded from macro 'absl_nonnull'd
it  i241o | n#(dceofnisnte  Ta*b salb_snlo_nnnounlnlu l_lN oonbnju)l
l      
|                                     ^| In file included from 
                     ^s2/s2contains_vertex_query.cc
:/usr/local/clang/include/absl/base/nullability.h25::
241In file included from :../src/s2/s2pointutil.h22::27 :
note: ../src/s2/util/math/matrix3x3.hexpanded from macro 'absl_nonnull':
276:5  :241  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efine   276a | b s l _ nSo2n_nCuHlElC KIn file included from __s2/s2closest_point_query.ccNN:Eo18(nd:
neuIn file included from ltl../src/s2/s2closest_point_query.h
,:       29V| T:
y                     ^pIn file included from 
e../src/s2/s2closest_point_query_base.h(:039):
)In file included from  ../src/s2/s2point_index.h<:<27 :
"In file included from  /usr/local/clang/include/absl/container/btree_map.hC:a66n:
'In file included from t/usr/local/clang/include/absl/container/internal/btree.h :i70n:
vIn file included from e/usr/local/clang/include/absl/container/internal/layout.hr:s198e:
.In file included from  /usr/local/clang/include/absl/strings/str_cat.hD:e116t:
eIn file included from r/usr/local/clang/include/absl/strings/internal/stringify_sink.hm:i23n:
a/usr/local/clang/include/absl/strings/numbers.hn:t209 :=5 :0 .warning: "'diagnose_if' is a clang extension [-Wgcc-compat];

      |     ^  
209 |  ../src/s2/base/logging.h : 37 :A21B:S Lnote: _expanded from macro 'S2_CHECK_NE'I
NIn file included from T   s2/s2convex_hull_query.ccE37:R | 26#N:
AdIn file included from Le../src/s2/s2convex_hull_query.h_f:Ni25nEe:
E In file included from SD2../src/s2/s2cap.h__C:MH30IE:
CNIn file included from _K../src/s2/s1angle.hS_:INZ28EE :
C(In file included from bH../src/s2/s2point.hEu:fC27Kf_:
NeIn file included from rE../src/s2/s2coder.h,
:       23k| F:
                    ^aIn file included from 
s/usr/local/clang/include/absl/status/status.ht:/usr/local/clang/include/absl/log/check.hT67o::
B120In file included from u:/usr/local/clang/include/absl/status/internal/status_internal.hf3:f:e29 r:
note: 1expanded from macro 'CHECK_NE'In file included from 2
/usr/local/clang/include/absl/strings/cord.h8:S  94i120:
z | In file included from e ) /usr/local/clang/include/absl/strings/internal/cordz_info.h;A:B
S31      L:
_| L/usr/local/clang/include/absl/synchronization/mutex.hO    ^:G
_896I:/usr/local/clang/include/absl/base/macros.hN31:T:E251 R:Nwarning: 18Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L:_
C Hnote: E  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'C896
K | _ N   E251e_x | Ip Ml Pi_Lc_(iat(t vtCarolin1bd)ui,tt ei#_ov_na((l(c1do,in as(gtvn aoTls2*e) _,aib fs#(lv__a_nlbo2un)in
lu      tl| iln  ^ _
oobb/usr/local/clang/include/absl/log/internal/check_impl.hjj:)e51
c:      t3| _:                              ^s 
inote: zexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'/usr/local/clang/include/absl/base/nullability.he
(:O241b:   j2251,: |    0note:  )expanded from macro 'absl_nonnull'A 
B<S L  N_241,L |  O#\Gd
_e      If| Ni                 ^Tn
EeR NaAbLs_lC_HnEoCnKn_uOlPlIn file included from ( s2/s2closest_point_query.cc_CN:ho18ne:
ncIn file included from ku../src/s2/s2closest_point_query.h_l:lN29E
:
,      In file included from  | ../src/s2/s2closest_point_query_base.h                     ^!:=
39,:
 In file included from v../src/s2/s2point_index.ha:l271:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hv:a66l:
1In file included from _/usr/local/clang/include/absl/container/internal/btree.ht:e70x:
tIn file included from ,/usr/local/clang/include/absl/container/internal/layout.h :v198a:
lIn file included from 2/usr/local/clang/include/absl/strings/str_cat.h,: 116v:
aIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h2:_23t:
e/usr/local/clang/include/absl/strings/numbers.hx:t215):
7      :|    ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:68:22  :In file included from 215 s2/s2convex_hull_query.cc | :note: cexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'26h
:
aIn file included from r../src/s2/s2convex_hull_query.h   *:68 25a | b:
s In file included from l ../src/s2/s2cap.hw_h:in30loe:
n In file included from n(../src/s2/s1angle.huc:lo28ln s:
FtIn file included from a ../src/s2/s2point.hsct:hIa27nr:
t*In file included from T ../src/s2/s2coder.haob:sBl23u_:
fnIn file included from fuelr/usr/local/clang/include/absl/status/status.hl(aib:lne67 t:
_aIn file included from tb/usr/local/clang/include/absl/status/internal/status_internal.hys:pl29_e:
l oIn file included from ig/usr/local/clang/include/absl/strings/cord.h,_:i
n94t      :
e| rIn file included from       ^n/usr/local/clang/include/absl/strings/internal/cordz_info.ha
:l31_/usr/local/clang/include/absl/base/nullability.hc:
h:/usr/local/clang/include/absl/synchronization/mutex.he241c::k922_22o:p:_48r :e snote: warning: uexpanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l

t   241  |    # d 922e  |  f   is n tea  \t
iac       bb| os                     ^oll
_ nGo/usr/local/clang/include/absl/base/nullability.hnu:na257rua:ln23tle: e_ Ndnote: oEexpanded from macro 'absl_nullable'qnu
nau  ll257l( | c
o#n      ds| etf                     ^ iC
noen daibtsilo_In file included from nns2/s2closest_point_query.cc*u :al18lba:
sbIn file included from ll../src/s2/s2closest_point_query.he_ :_nNu29lu:
lllIn file included from aabb../src/s2/s2closest_point_query_base.hlle:e
 39a      ,:
| 
In file included from                       ^      ../src/s2/s2point_index.h
| :                                               ^27
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66257:
:In file included from 23/usr/local/clang/include/absl/container/internal/btree.h:: 70:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/layout.h
:198:
  In file included from 257/usr/local/clang/include/absl/strings/str_cat.h | :#116d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/stringify_sink.hi:n23e:
 /usr/local/clang/include/absl/strings/numbers.ha:b216s:l49_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abl  e216  | _ N u l l a b l e 
        |                        ^ 
    In file included from  s2/s2contains_vertex_query.cc : 25In file included from  :
s2/s2convex_hull_query.cc In file included from : ../src/s2/s2pointutil.h26 ::
 27In file included from  :
../src/s2/s2convex_hull_query.h :../src/s2/util/math/matrix3x3.h 25: :
 276In file included from  :../src/s2/s2cap.h 5: :30  :
 In file included from warning:  ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] : 
28 :
 In file included from ../src/s2/base/logging.h ../src/s2/s2point.h: :c3727h::
a21rIn file included from :*../src/s2/s2coder.h  :note: a23bexpanded from macro 'S2_CHECK_NE's:

lIn file included from _/usr/local/clang/include/absl/status/status.h   n:37o67 | n:
#nIn file included from du/usr/local/clang/include/absl/status/internal/status_internal.hle:lf29 i:
bnIn file included from ue/usr/local/clang/include/absl/strings/cord.hf :fS94e2r:
)_In file included from 
C/usr/local/clang/include/absl/strings/internal/cordz_info.hH      E:| C31                                                ^K:
_
/usr/local/clang/include/absl/synchronization/mutex.hN:/usr/local/clang/include/absl/base/nullability.hE923: :C24148H:E:C22K _:warning: N type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]E
note: 
expanded from macro 'absl_nonnull'      
|                       ^923  
 | 241  |  /usr/local/clang/include/absl/log/check.h# : d120 e :f 3 i :n e    note: a expanded from macro 'CHECK_NE'b s
 l _ n   o 120n n  | u  l l   A _ BN So Ln _n uLclOolGn
_sI      tN| T                     ^E R
NCAoLn_dCiHtEiCoKn_*N Ea_bIsMlP_Ln(u(lvlaalb1l)e,  b#)v;a
l      1| ,                                               ^ 
(v/usr/local/clang/include/absl/base/nullability.ha:l2572:)23,:  #note: vexpanded from macro 'absl_nullable'a
l2  )In file included from 257
s2/s2closest_point_query.cc |       :#| 18  ^d:
e
In file included from f../src/s2/s2closest_point_query.h/usr/local/clang/include/absl/log/internal/check_impl.hi:n:29e51:
 :In file included from a3../src/s2/s2closest_point_query_base.hb::s l39note: _:
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'nIn file included from u
../src/s2/s2point_index.hl:l27   a:
b51lIn file included from e |   /usr/local/clang/include/absl/container/btree_map.h_ :AN66Bu:
lSlIn file included from La/usr/local/clang/include/absl/container/internal/btree.hb_:LlO70eG:
_
In file included from I      /usr/local/clang/include/absl/container/internal/layout.hN| :T                      ^E198R
:
NIn file included from A/usr/local/clang/include/absl/strings/str_cat.hL:_116C:
HIn file included from E/usr/local/clang/include/absl/strings/internal/stringify_sink.hC:K23_:
O/usr/local/clang/include/absl/strings/numbers.hP:(217C:h5e:c kwarning: _'diagnose_if' is a clang extension [-Wgcc-compat]N
E,   !217= | ,   v a lA1B,S Lv_aIlN1In file included from T_s2/s2convex_hull_query.cctEe:Rx26NtA:
L,_ In file included from Nv../src/s2/s2convex_hull_query.hEa:El25D2:
_,In file included from M ../src/s2/s2cap.hIv:Na30_l:
S2In file included from I_../src/s2/s1angle.hZt:eEx28(t:

)In file included from 
      ../src/s2/s2point.h      | :|     ^27  ^
:

In file included from /usr/local/clang/include/absl/base/macros.h../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_op.h:::2512375::
:18In file included from 61:/usr/local/clang/include/absl/status/status.h: : 67note: :
note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
/usr/local/clang/include/absl/status/internal/status_internal.h
:29  :
251In file included from     | /usr/local/clang/include/absl/strings/cord.h75 : |  94_ :
_ In file included from aAtB/usr/local/clang/include/absl/strings/internal/cordz_info.htS:Lr_31iLbO:
Gu_/usr/local/clang/include/absl/synchronization/mutex.htI:NeT948_E_:(R10N(A:dL i_warning: aCtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]gH
EnCoKs  e(948_: | i f :(ab_ob_solblu :i:(l*itmaibpnlsi_lco_inbutl_jcleaacsbttl<_ecso niesztve (cOhablajr_*),( cao nb0ss)tl _ <Cn ooNnn,d i\n
tu      il| lo>                 ^n(* 
  a b s l\_
n      o| n                                                            ^n
ul/usr/local/clang/include/absl/base/nullability.hl:)241 :=22 :n unote: lexpanded from macro 'absl_nonnull'l
pt  r241; | 
#      d| e         ^f
in/usr/local/clang/include/absl/base/nullability.he: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# d_eNfoinnneu lalb
s      l| _                     ^n
ullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2closest_point_query.cco:n18n:
uIn file included from l../src/s2/s2closest_point_query.hl:
29      :
| In file included from                      ^../src/s2/s2closest_point_query_base.h
:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.hIn file included from :s2/s2convex_hull_query.cc116::
26In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :../src/s2/s2convex_hull_query.h23::
25:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s2cap.h247::3047:
:In file included from  ../src/s2/s1angle.h:warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h247: | 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 951 : 9 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     951  |   i nvto_itdy*p ea*b salb_snlu_lnloanbnluel la rogu_t ,=  innutl lbpatsre;)
       {| 
        ^      
|                                               ^/usr/local/clang/include/absl/base/nullability.h
:257:23/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nullable':
 note:   expanded from macro 'absl_nonnull'257
 | #  d241e | f#idneef ianbes la_bnsull_lnaobnlneu l_lN u_lNloanbnluel
l      
|                             ^| 
                     ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :In file included from s2/s2crossing_edge_query.cc27s2/s2closest_edge_query.cc::
:18In file included from 18:
../src/s2/s2coder.h:
In file included from :In file included from ../src/s2/s2crossing_edge_query.h23../src/s2/s2closest_edge_query.h::
:31In file included from 30:
/usr/local/clang/include/absl/status/status.h:
In file included from :In file included from ../src/s2/s2padded_cell.h67../src/s2/s1angle.h::
:23In file included from 28:
/usr/local/clang/include/absl/status/internal/status_internal.h:
In file included from :In file included from ../src/s2/s2cell_id.h29../src/s2/s2point.h::
:43In file included from 27:
/usr/local/clang/include/absl/strings/cord.h:
In file included from :In file included from ../src/s2/s1angle.h94../src/s2/s2coder.h::
:28In file included from 23:
/usr/local/clang/include/absl/strings/internal/cordz_info.h:
In file included from :In file included from ../src/s2/s2point.h31/usr/local/clang/include/absl/status/status.h::
:27/usr/local/clang/include/absl/synchronization/mutex.h67:
::
In file included from 956../src/s2/s2coder.h:/usr/local/clang/include/absl/status/internal/status_internal.h:52:23:149:
 :warning: In file included from 13type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h:
: 67:
  warning: In file included from 956type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h | 
: 29 :
sIn file included from t/usr/local/clang/include/absl/strings/cord.ha  :t14982i | :
ccIn file included from  o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hbn:os23to:
 lIn file included from c /usr/local/clang/include/absl/crc/crc32c.hhC:aa32sr:
*tIn file included from  A/usr/local/clang/include/absl/strings/str_format.han:db84sCl:
_aIn file included from nlo/usr/local/clang/include/absl/strings/internal/str_format/bind.hln:Fn29uu:
nl/usr/local/clang/include/absl/strings/internal/str_format/parser.hlc:t 227iM:oa11nk:e( Cwarning: hc'enable_if' is a clang extension [-Wgcc-compat]eo
cnksFt  a 227Ci | lo Sn tdr ii nt gi o( n
 *         | a            ^ebn
salb_l/usr/local/clang/include/absl/base/nullability.hneo:_ni241nf:u(ls22lt: r c_note: )expanded from macro 'absl_nonnull'In file included from f;o
s2/s2closest_point_query.cc
r  :      m24118| a                                                   ^ | :
t
_#/usr/local/clang/include/absl/base/nullability.hIn file included from id:../src/s2/s2closest_point_query.hne241:tf:29ei22:
rn:In file included from ne ../src/s2/s2closest_point_query_base.hnote: aexpanded from macro 'absl_nonnull' :alb
39:s:
  :lIn file included from 241E_../src/s2/s2point_index.h | n#sn:duo27erfn:
neuiIn file included from Cln/usr/local/clang/include/absl/container/btree_map.hole:n  _66Nsoa:
tnbnIn file included from uelsl/usr/local/clang/include/absl/container/internal/btree.h
xlp_:n      r70(of| :
                     ^nonIn file included from u
r/usr/local/clang/include/absl/container/internal/layout.hml:al198 t:
_)In file included from N,/usr/local/clang/include/absl/strings/str_cat.ho
:In file included from n      n116us2/s2closest_edge_query.cc| :
          ^l:In file included from 
l18/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:
:      In file included from 23| ../src/s2/s2closest_edge_query.h/usr/local/clang/include/absl/strings/internal/str_format/parser.h:
                     ^::
/usr/local/clang/include/absl/strings/numbers.h30229::
:303In file included from 11:../src/s2/s1angle.h:60: :28warning:  'enable_if' is a clang extension [-Wgcc-compat]:
warning: 
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
  In file included from :229s2/s2convex_hull_query.cc27   | ::
303 26 In file included from  | :
 ../src/s2/s2coder.hiIn file included from n l:../src/s2/s2convex_hull_query.h i23: n e:
25   In file included from :
s i/usr/local/clang/include/absl/status/status.hIn file included from ezn:../src/s2/s2cap.hea_b67:tl:
30 eF/usr/local/clang/include/absl/status/internal/status_internal.h:
_ai:In file included from sft150../src/s2/s1angle.h(H::set2528xrT::
_o In file included from fBourf../src/s2/s2point.hfwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:ear
27t  Z:
_150eIn file included from rio | ../src/s2/s2coder.hnPt :aed 23 r1:
 nc6In file included from ao(/usr/local/clang/include/absl/status/status.hulin::n:tVs676a4lt:
 _aibIn file included from td s/usr/local/clang/include/absl/status/internal/status_internal.hlF:v::Sota29ral:
mt,In file included from au s/usr/local/clang/include/absl/strings/cord.h*t ca:Ihmb94aprls:
*< lIn file included from _Ca/usr/local/clang/include/absl/strings/internal/cordz_info.hbn.o:s.ln31._>n:
n/usr/local/clang/include/absl/synchronization/mutex.ho(u:nfnl958ourl:lml 50sa :otta u)ttwarning: u,s)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
,  
c      o{n| s  
          ^t958       c
h | a| r                                                            ^* 
 sa/usr/local/clang/include/absl/base/nullability.htb:as241lt:i_22cn: o bnote: noexpanded from macro 'absl_nonnull'on
ul  l l241C  | pa#srdteeAfnfiidnxCe)a l;al
bMs      elt| _                        ^hno
odn(nc/usr/local/clang/include/absl/base/nullability.huol:nl241s :t_22 NC:oon nnnote: duiexpanded from macro 'absl_nonnull'ltl
i
o      n  | *                     ^241 
a | b#sdle_fnionnen ualbls lc_)n;o
n      n| u                                                 ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absIn file included from ls2/s2closest_edge_query.cc_:n18o:
nIn file included from n../src/s2/s2closest_edge_query.hu:l30l:
 In file included from _../src/s2/s1angle.hN:o28n:
nIn file included from u../src/s2/s2point.hl:l27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 | In file included from  s2/s2convex_hull_query.cc : 26 :
cIn file included from o../src/s2/s2convex_hull_query.hn:s25t:
 In file included from a../src/s2/s2cap.hb:s30l:
:In file included from :../src/s2/s1angle.hS:t28a:
tIn file included from u../src/s2/s2point.hs:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :s29t:
aIn file included from t/usr/local/clang/include/absl/strings/cord.hu:s94,In file included from :
 s2/s2closest_point_query.ccIn file included from c:o/usr/local/clang/include/absl/strings/internal/cordz_info.h18n::
s31In file included from t:
../src/s2/s2closest_point_query.h /usr/local/clang/include/absl/synchronization/mutex.h:c:h29961a:
:rIn file included from 34*../src/s2/s2closest_point_query_base.h ::a b39warning: s:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lIn file included from _
n../src/s2/s2point_index.ho:n  27n961:
u | lIn file included from  l/usr/local/clang/include/absl/container/btree_map.h  :sp66tr:
aeIn file included from tf/usr/local/clang/include/absl/container/internal/btree.hii:cx70) :
b;In file included from o
/usr/local/clang/include/absl/container/internal/layout.ho      :l| 198                                                          ^:
C
In file included from a/usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/base/nullability.hl:l:116B241:
y:In file included from R22/usr/local/clang/include/absl/strings/internal/stringify_sink.he::f 23(:
cnote: /usr/local/clang/include/absl/strings/numbers.hoexpanded from macro 'absl_nonnull':n
330s:t  41 241:T | * #warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]da
ebfsi  ln330e_  | an ob sn ln u_ nl lo  n s ne lu f l)  l {  
_ N       o|  n                                 ^ n
 u l/usr/local/clang/include/absl/base/nullability.h l: 
241       : | 22                      ^: 
  note:  expanded from macro 'absl_nonnull' 
in  t241_ | t#ydpeef*i naeb salb_snlo_nnnounlnlu lolu t_)N o{n
n      u| l                                        ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2convex_hull_query.ccl:
26      :
| In file included from                      ^../src/s2/s2convex_hull_query.h
:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inlineIn file included from  s2/s2closest_point_query.ccv:o18i:
dIn file included from  ../src/s2/s2closest_point_query.hR:e29a:
dIn file included from C../src/s2/s2closest_point_query_base.ha:l39l:
bIn file included from a../src/s2/s2point_index.hc:k27(:
TIn file included from */usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n70o:
nIn file included from n/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.ha:l116l:
bIn file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hc:k23):
 /usr/local/clang/include/absl/strings/numbers.hc:o335n:s52t:  {warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                              ^
/usr/local/clang/include/absl/base/nullability.h  :335241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d eIn file included from  fs2/s2crossing_edge_query.cci :n e18  :
 aIn file included from  b../src/s2/s2crossing_edge_query.h s: l31 _:
n oIn file included from n n../src/s2/s2padded_cell.h u: l23 l:
  In file included from  _../src/s2/s2cell_id.h N: o43n n:
 uIn file included from l ../src/s2/s1angle.hl :
 28       :
| a                     ^In file included from b
../src/s2/s2point.hs:l27::
:In file included from i../src/s2/s2coder.hn:t231:
2In file included from 8/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from In file included from ss2/s2convex_hull_query.cc/usr/local/clang/include/absl/status/internal/status_internal.hl::_2629n:
:
oIn file included from In file included from n../src/s2/s2convex_hull_query.h/usr/local/clang/include/absl/strings/cord.hn::u2582l:
:
lIn file included from In file included from  ../src/s2/s2cap.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho::u3023t:
:
)In file included from In file included from  ../src/s2/s1angle.h/usr/local/clang/include/absl/crc/crc32c.h{::
2832      :
:
| In file included from In file included from                                                    ^../src/s2/s2point.h/usr/local/clang/include/absl/strings/str_format.h
::2784/usr/local/clang/include/absl/base/nullability.h:
:
:In file included from 241/usr/local/clang/include/absl/strings/internal/str_format/bind.h../src/s2/s2coder.h:::2214323:::
 11In file included from :note: /usr/local/clang/include/absl/status/status.h expanded from macro 'absl_nonnull':
warning: 67'enable_if' is a clang extension [-Wgcc-compat]:
  
In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h | :#29  d:
143eIn file included from  | f/usr/local/clang/include/absl/strings/cord.h i: n94 e:
  In file included from  a/usr/local/clang/include/absl/strings/internal/cordz_info.h b: s31 l:
 _/usr/local/clang/include/absl/synchronization/mutex.h n:eo979nn:an43bu:ll elwarning: _ type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i_
fN(osntnru  _l979fl | o
 r       smt| aa                     ^tt
_iicn tbeoronla lA:l:wEanyssuTrreuCeo(ncsotnesxtp rC(osn)d,i t"icoonn*s taebxsplr_ nturlalpa"b)l,e
)       | {          ^ 
return trIn file included from us2/s2closest_point_query.cce:;18 :
}In file included from 
../src/s2/s2closest_point_query.h      :| 29                                          ^:

In file included from ../src/s2/s2closest_point_query_base.h:/usr/local/clang/include/absl/base/nullability.h39::
257In file included from :../src/s2/s2point_index.h23::27 :
In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nullable':
66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h257: | 70#:
dIn file included from e/usr/local/clang/include/absl/container/internal/layout.hf:i198n:
eIn file included from  /usr/local/clang/include/absl/strings/str_cat.ha:b116s:
/usr/local/clang/include/absl/strings/internal/str_format/bind.hlIn file included from _:/usr/local/clang/include/absl/strings/internal/stringify_sink.hn149u::l23l22a:
b:/usr/local/clang/include/absl/strings/numbers.hl e:warning:  340'enable_if' is a clang extension [-Wgcc-compat]_:
N53u:l l  warning: a149type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b | 
l e 
          340|                        ^ |  
 _ _ a t t r i b u t e _ _ ( ( e n a b l e _ i f ( s t r _ f o r m a t _ ianbtselr:n:auli:n:tE1n2s8u*r eaCbosnls_tneoxnpnru(lsl) ,o
u      t| )                     ^ 
{
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull /usr/local/clang/include/absl/strings/internal/str_format/bind.h_:N158o:n22n:u lwarning: l'enable_if' is a clang extension [-Wgcc-compat]

      |                      ^
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "baIn file included from ds2/s2closest_point_query.cc :f18In file included from o:
s2/s2convex_hull_query.ccrIn file included from m:a../src/s2/s2closest_point_query.ht26: :
29tIn file included from :
r../src/s2/s2convex_hull_query.hIn file included from a:../src/s2/s2closest_point_query_base.hp25:":
39)In file included from :
)../src/s2/s2cap.hIn file included from ):../src/s2/s2point_index.h
30:      :
27| In file included from :
                     ^../src/s2/s1angle.hIn file included from 
:/usr/local/clang/include/absl/container/btree_map.h28::
66In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h27::
70In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h23::
198In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h67::
116In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h29::
23In file included from :
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/strings/numbers.h94::
/usr/local/clang/include/absl/strings/internal/str_format/bind.h346In file included from ::/usr/local/clang/include/absl/strings/internal/cordz_info.h16244:::3122 :
:warning:  /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: :
'enable_if' is a clang extension [-Wgcc-compat]1033
:20:   346   | warning: 162 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] |  
        1033   |    _  _v ao ti td r  iW ba ui tt e( _M _u (t (e ex n* a  ba l be s_l i_ fn (o Vn anluilinldt F_motury)mp a{et
*I       m| ap                   ^bl
s<lA/usr/local/clang/include/absl/base/nullability.h_r:ng241os:n.22n.:u. l>note: l(expanded from macro 'absl_nonnull' s
o)u,  t 241)" |  b#{ad
de       f| fi                                           ^on
rem /usr/local/clang/include/absl/base/nullability.haab:ts241 l:t_22rn:ao pnnote: "nexpanded from macro 'absl_nonnull')u
)l)l  
 241_       | N| #o                     ^dn
enfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_point_query.cc: 181050:
 | In file included from  ../src/s2/s2closest_point_query.h :b29o:
oIn file included from l../src/s2/s2closest_point_query_base.h :W39a:
iIn file included from t../src/s2/s2point_index.hW:i27t:
hIn file included from T/usr/local/clang/include/absl/container/btree_map.hi:m66e:
oIn file included from u/usr/local/clang/include/absl/container/internal/btree.ht:(70M:
uIn file included from t/usr/local/clang/include/absl/container/internal/layout.he:x198*:
 In file included from a/usr/local/clang/include/absl/strings/str_cat.hb:s116l:
_In file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l351 :m55u:,  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl::  D351u | r a t i o n   t i m e o u t )   { 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e faibnsel :a:bisnlt_1n2o8n*n ualbls l__Nnoonnnnuullll
       o| u                     ^t
) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2convex_hull_query.cca:b26s:
lIn file included from _../src/s2/s2convex_hull_query.hn:o25n:
nIn file included from u../src/s2/s2cap.hl:l30 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnulIn file included from ls2/s2closest_point_query.cc :m18u:
,In file included from  ../src/s2/s2closest_point_query.ha:b29s:
lIn file included from :../src/s2/s2closest_point_query_base.h::T39i:
mIn file included from e../src/s2/s2point_index.h :d27e:
aIn file included from d/usr/local/clang/include/absl/container/btree_map.hl:i66n:
eIn file included from )/usr/local/clang/include/absl/container/internal/btree.h :{70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                               ^:
198:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/str_cat.h::241116::
22In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/numbers.h:356  :24156 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   a356b | s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
                 absl::uint128* In file included from as2/s2convex_hull_query.ccb:s26l:
_In file included from n../src/s2/s2convex_hull_query.ho:n25n:
uIn file included from l../src/s2/s2cap.hl: 30o:
uIn file included from t../src/s2/s1angle.h): 28{:

In file included from       ../src/s2/s2point.h| :                                                       ^27
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1088s:l35_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  1088_ | N o nvnouildl 
E      n| a                     ^b
In file included from ls2/s2closest_edge_query.cce:D18e:
bIn file included from u../src/s2/s2closest_edge_query.hg:L30o:
gIn file included from (../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :c27h:
aIn file included from r../src/s2/s2coder.h*: 23a:
bs/usr/local/clang/include/absl/status/status.hl:_725n:u38l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e name  )725; | 
        | s                                  ^t
at/usr/local/clang/include/absl/base/nullability.hi:c257 :s23t:a tnote: uexpanded from macro 'absl_nullable's
_i  n257t | e#rdneafli:n:eS taabtsuls_Rneupl*l aabblsel __nNounlnlualbll eP
r      e| p                      ^a
reToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2convex_hull_query.cc::2226::
 In file included from note: ../src/s2/s2convex_hull_query.hexpanded from macro 'absl_nonnull':
25:
In file included from   ../src/s2/s2cap.h241: | 30#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
94      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnulIn file included from ls2/s2closest_edge_query.cc :m18u:
tIn file included from e../src/s2/s2closest_edge_query.hx:,30
:
      In file included from | ../src/s2/s1angle.h                         ^:In file included from 
28s2/s2contains_vertex_query.cc:
/usr/local/clang/include/absl/base/nullability.h:In file included from :26../src/s2/s2point.h241:
::In file included from 2722../src/s2/s2predicates.h:
::In file included from  55../src/s2/s2coder.hnote: :
:expanded from macro 'absl_nonnull'In file included from 23
/usr/local/clang/include/absl/flags/flag.h:
:  40/usr/local/clang/include/absl/status/status.h241:
: | /usr/local/clang/include/absl/flags/commandlineflag.h#732:d:163e29:f:i56 n:ewarning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: a
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
s  l732_ |    n 163os | nt na utbiloclo  lc_ oNPnoasnrtns uesltFldr
:o      :m| s(                     ^ta
rbisnlg:*: satbrsiln_gn_ovniIn file included from neus2/s2convex_hull_query.ccwl: l26v :
aEIn file included from lm../src/s2/s2convex_hull_query.hup:et25,y:
 SIn file included from st../src/s2/s2cap.htr:di30:n:
:gIn file included from s(../src/s2/s1angle.ht):r;28i
:
n      In file included from g| ../src/s2/s2point.h*                            ^: 
27a:
bIn file included from /usr/local/clang/include/absl/base/nullability.hs../src/s2/s2coder.h:l:_24123n::
o22In file included from n:/usr/local/clang/include/absl/status/status.hn :u67note: lexpanded from macro 'absl_nonnull':
l
In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h  e:241r29r | :
o#In file included from rd/usr/local/clang/include/absl/strings/cord.h)e:f;94
i:
      nIn file included from | e/usr/local/clang/include/absl/strings/internal/cordz_info.h                                                       ^ :
a31b:
/usr/local/clang/include/absl/base/nullability.hs/usr/local/clang/include/absl/synchronization/mutex.h:l:241_1093:n:22o46:n: nnote: u lwarning: expanded from macro 'absl_nonnull'ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 
  _241N |  o#1093nd | ne uf livlno
ei       d| a                      ^bRs
elm_onvoen(nbualsle __iNnotnenrunlallIn file included from 
:s2/s2closest_edge_query.cc      ::| P                     ^18e
r:
TIn file included from h../src/s2/s2closest_edge_query.hr:e30a:
dIn file included from S../src/s2/s1angle.hy:n28c:
hIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
n/usr/local/clang/include/absl/status/status.hn:u733l:l29 :s )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                              ^
  733 | /usr/local/clang/include/absl/base/nullability.h : 241s:t22a:t inote: cexpanded from macro 'absl_nonnull' 
co  n241s | t# dsetfdi:nIn file included from :es2/s2contains_vertex_query.cc s:at26br:
siIn file included from ln../src/s2/s2predicates.hg_:*n55 o:
anIn file included from bn/usr/local/clang/include/absl/flags/flag.hsul:l_40ln:
 /usr/local/clang/include/absl/flags/commandlineflag.ho_:Nn193on:nu27nl:ul l warning: lMtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
o
v      e| d                       ^F193
r | o m Svtirritnuga(l) ;v
o      i| d                            ^ 
Re/usr/local/clang/include/absl/base/nullability.ha:d241(:v22o:i dnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  adbsstl)_ ncoonnnsutl l=  _0N;o
n      n| u                          ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PoinIn file included from ts2/s2convex_hull_query.cce:r26T:
oIn file included from R../src/s2/s2convex_hull_query.he:p25(:
sIn file included from t../src/s2/s2cap.ha:t30u:
sIn file included from _../src/s2/s1angle.hi:n28t:
eIn file included from r../src/s2/s2point.hn:a27l:
:In file included from :../src/s2/s2coder.hS:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:R67e:
pIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hr:)1109;:
34      :|                                                              ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:  1109 | note:  expanded from macro 'absl_nonnull' 
ex  p241l | i#cdietf iMnuet eaxbLsolc_knMoanynbuel(lM u_tNeoxn*n ualbls
l      _| n                     ^u
llable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2closest_edge_query.cc:: 18note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2closest_edge_query.h:30  :
257In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
n/usr/local/clang/include/absl/status/status.hu:l752l:a44b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nul  l752a | b l es
t      a| t                      ^i
c const status_internal::StatusRep* aIn file included from bs2/s2convex_hull_query.ccs:l26_:
nIn file included from o../src/s2/s2convex_hull_query.hn:n25u:
lIn file included from l../src/s2/s2cap.h :R30e:
pIn file included from T../src/s2/s1angle.ho:P28o:
iIn file included from n../src/s2/s2point.ht:e27r:
(In file included from 
../src/s2/s2coder.h      :| 23                                           ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1117e: 34a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nonn u1117l | l   _eNxopnlniuclilt
       M| u                     ^t
exLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2closest_point_query.cc1132: | 18 :
 In file included from M../src/s2/s2closest_point_query.hu:t29e:
xIn file included from *../src/s2/s2closest_point_query_base.h :a39b:
sIn file included from l../src/s2/s2point_index.h_:n27u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.ha:b66l:
eIn file included from  /usr/local/clang/include/absl/container/internal/btree.hc:o70n:
sIn file included from t/usr/local/clang/include/absl/container/internal/layout.h :m198u:
_/usr/local/clang/include/absl/strings/str_cat.h;:
223      :| 25         ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
257:23:   note: 223expanded from macro 'absl_nullable' | 
    e257x | p#ldiecfiitn eH eaxb(sPlo_innutlelea*b laeb s_lN_unlullalbalbel
e       | v                      ^,
 PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      In file included from | s2/s2contains_vertex_query.cc                      ^:
26:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:26:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2contains_vertex_query.cc:26:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2convex_hull_query.cco:n26n:
uIn file included from l../src/s2/s2convex_hull_query.hl: 25_:
NIn file included from o../src/s2/s2cap.hn:n30u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2contains_vertex_query.cc:
:In file included from 26/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2predicates.h:
:In file included from 55/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/flags/internal/flag.h:
:30/usr/local/clang/include/absl/synchronization/mutex.h:
:/usr/local/clang/include/absl/base/call_once.h1212::9752::18 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   97  | 1212  |  b o o l  oCnocned_iftliaogn*: :aCbasslt_AnnodnCnaullllM eftlhaogd)(;c
o      n| s                 ^t
 C/usr/local/clang/include/absl/base/nullability.ho:n241d:i22t:i onote: nexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bcs)l _{n
o      n| n                                                   ^u
ll /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from s2/s2contains_vertex_query.cc/usr/local/clang/include/absl/strings/cord.h::2694:
:
In file included from In file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::5531:
:
In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/synchronization/mutex.h::421221:
:In file included from 54/usr/local/clang/include/absl/flags/internal/flag.h:: 30:
warning: /usr/local/clang/include/absl/base/call_once.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
111:40:  warning: 1221type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
bool   111C | ovnodiidt iLoonw:L:eCvaesltCAanldlCOanlcleF(uanbcstli:o:no(nccoen_sftl aCgo*n daibtsilo_nn*o nanbuslll_ nfolnangu,l lC acl)l a{b
l      e| &                                                     ^&
 f/usr/local/clang/include/absl/base/nullability.hn:,241
:      22| :                                       ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2crossing_edge_query.cc241: | 18#:
dIn file included from e../src/s2/s2crossing_edge_query.hf:i31n:
eIn file included from  ../src/s2/s2padded_cell.ha:b23s:
lIn file included from _../src/s2/s2cell_id.hn:o43n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from s2/s2convex_hull_query.cc/usr/local/clang/include/absl/strings/cord.h::2682:
:
In file included from In file included from ../src/s2/s2convex_hull_query.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2523:
:
In file included from In file included from ../src/s2/s2cap.h/usr/local/clang/include/absl/crc/crc32c.h::3032:
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/strings/str_format.h::28115:
:In file included from 52../src/s2/s2point.h:: 27:
warning: In file included from ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
115In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht: 31s:
t/usr/local/clang/include/absl/synchronization/mutex.hr:_1230f:o34r:m awarning: ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
int e1230r | n a l : :bPoaorls e(d*FaobIn file included from rsIn file included from s2/s2closest_point_query.ccmls2/s2contains_vertex_query.cc:a_:n18otn26n:
uB:
aIn file included from slIn file included from ../src/s2/s2closest_point_query.hel../src/s2/s2predicates.h :f*: 29u55a:
n:
cbIn file included from sIn file included from )../src/s2/s2closest_point_query_base.h(l/usr/local/clang/include/absl/flags/flag.h_:T:*n3942 o:
:
anIn file included from nIn file included from b../src/s2/s2point_index.hsu/usr/local/clang/include/absl/flags/internal/flag.hl:l:_ln27u30l :
p:
lIn file included from ac/usr/local/clang/include/absl/base/call_once.h)/usr/local/clang/include/absl/container/btree_map.hb:i
:153l      66:i| t:
y41_                                                   ^In file included from :u
/usr/local/clang/include/absl/container/internal/btree.h n:kwarning: 70/usr/local/clang/include/absl/base/nullability.hntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:
w:
In file included from n241/usr/local/clang/include/absl/container/internal/layout.h):,:  22
198153:      :
 |  /usr/local/clang/include/absl/strings/str_cat.h|  :note:                                  ^ 398 expanded from macro 'absl_nonnull'
: 
C24a/usr/local/clang/include/absl/base/nullability.h:  l: 241l289O | warning: #:ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]cd34e
e:fI im  pnote: ln398eexpanded from macro 'absl_nullability_unknown'( | s 
 ta d  bA:289sl: | a#ldpetf_ihoannomniNce<nuu uamblsi(nll ct_3_on2N_ntu>l*osnl atbna bisuclllihtly__a
rnuon      k*nno|                       ^nwan
 ubl_slNlu _clnolu_nltluraobnll,sep
e c      ci_| fsi                                        ^terd
 
       /usr/local/clang/include/absl/base/nullability.h/| :/                                 ^241 
:N22O:L Inote: Nexpanded from macro 'absl_nonnull'T
(r  u241n | t#idmeefIn file included from /is2/s2convex_hull_query.ccen:xe26p :
laIn file included from ibcs../src/s2/s2convex_hull_query.hil:t_25)n:

oIn file included from       n../src/s2/s2cap.h| n:                       ^u30
l:
lIn file included from  ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h_::N28257o:
:nIn file included from 23n../src/s2/s2point.h:u: l27note: l:
expanded from macro 'absl_nullable'
In file included from 
      ../src/s2/s2coder.h| :                       ^23257
:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:a31b:
l/usr/local/clang/include/absl/synchronization/mutex.he: 1231_:N8u:l lwarning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]b
le
       1231|  |                       ^ 
   T* absl_nullability_In file included from us2/s2crossing_edge_query.ccn:k18n:
oIn file included from w../src/s2/s2crossing_edge_query.hn: 31a:
rIn file included from g../src/s2/s2padded_cell.h):
23      :
| In file included from        ^../src/s2/s2cell_id.h
:43:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h289::2834:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/s2coder.h:  23289:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_82n:
uIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:a23b:
iIn file included from l/usr/local/clang/include/absl/crc/crc32c.hi:t32y:
_/usr/local/clang/include/absl/strings/str_format.hu:n155k:n36o:w nwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Null  _155u | n s peexcpilfiiceidt
       F| o                                 ^r
matCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2closest_point_query.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2closest_point_query.h:  29241:
 | In file included from #../src/s2/s2closest_point_query_base.hd:e39f:
iIn file included from n../src/s2/s2point_index.he: 27a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hlIn file included from :_s2/s2convex_hull_query.cc66n::
o26In file included from n:
/usr/local/clang/include/absl/container/internal/btree.hnIn file included from :u../src/s2/s2convex_hull_query.h70l::
l25In file included from  :
/usr/local/clang/include/absl/container/internal/layout.h_In file included from :N../src/s2/s2cap.h198o::
n30/usr/local/clang/include/absl/strings/str_cat.hn:
:uIn file included from 431l../src/s2/s1angle.h:l:15
28:      :
 | In file included from warning:                      ^../src/s2/s2point.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h431: | 67 :
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/strings/cord.hc:h94a:
rIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
sIn file included from /usr/local/clang/include/absl/synchronization/mutex.hls2/s2crossing_edge_query.cc:_:1241n18:u:
12lIn file included from :l../src/s2/s2crossing_edge_query.h a:warning: b31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:

eIn file included from  ../src/s2/s2padded_cell.hd: a231241t:
 | aIn file included from  ( ../src/s2/s2cell_id.h)  :c 43boo:
noIn file included from sl../src/s2/s1angle.h t(: *28a{:
 brsIn file included from le../src/s2/s2point.h_t:nu27ronn:
 nIn file included from pu../src/s2/s2coder.hil:el23 c:
efIn file included from _u/usr/local/clang/include/absl/status/status.hn.:cd)67a(:
tTIn file included from a*/usr/local/clang/include/absl/status/internal/status_internal.h( :)a29;b:
 sIn file included from }l/usr/local/clang/include/absl/strings/cord.h
_:      n82| u:
              ^lIn file included from l
a/usr/local/clang/include/absl/crc/internal/crc_cord_state.hb:/usr/local/clang/include/absl/base/nullability.hi23:l:
i257tIn file included from y:_/usr/local/clang/include/absl/crc/crc32c.h23u:n:k32 n:
note: o/usr/local/clang/include/absl/strings/str_format.hexpanded from macro 'absl_nullable'w:
n164):  ,8
257:       |  | #warning:            ^dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

fi/usr/local/clang/include/absl/base/nullability.hn  :e164241  | :a 22b :si lnnote: _texpanded from macro 'absl_nonnull'n*
 In file included from ua  bs2/s2contains_vertex_query.ccsl241:ll_ | 26an#:
bodneIn file included from flinn../src/s2/s2predicates.heue: l 55a_l:
bNsu lIn file included from llU_/usr/local/clang/include/absl/flags/flag.hnaonn:nbuul42ll s:
ee_
In file included from dN      /usr/local/clang/include/absl/flags/internal/flag.h(o| n:n)                      ^30u 
{:
l /usr/local/clang/include/absl/base/call_once.hlr:
e194      t:| u31r                     ^:n
  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
;In file included from  s2/s2convex_hull_query.cc}  :
19426       | :
| i       ^nIn file included from l
../src/s2/s2convex_hull_query.hi:n/usr/local/clang/include/absl/base/nullability.h25e::
 241In file included from s:../src/s2/s2cap.ht22:d:30: :
:In file included from anote: t../src/s2/s1angle.hexpanded from macro 'absl_nonnull'o:m
28i:
  cIn file included from <241u../src/s2/s2point.hi | n:#td273e2f:
_iIn file included from tn../src/s2/s2coder.h>e:* 23 a:
baIn file included from sbl/usr/local/clang/include/absl/status/status.h_s:nl67o_:
nnIn file included from nou/usr/local/clang/include/absl/status/internal/status_internal.hnln:lu29 l:
_lIn file included from N /usr/local/clang/include/absl/strings/cord.hoC:no94nn:
utlrIn file included from lo/usr/local/clang/include/absl/strings/internal/cordz_info.h
l:      W31| o:
                     ^r/usr/local/clang/include/absl/synchronization/mutex.hd
(:
1241      :| 34                              ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
241:22:  1241 | note: In file included from  expanded from macro 'absl_nonnull's2/s2crossing_edge_query.cc 
: 18   :
b241oIn file included from o | l../src/s2/s2crossing_edge_query.h# d:(e31*f:
aiIn file included from nb../src/s2/s2padded_cell.hes :la23_b:
nsIn file included from lo../src/s2/s2cell_id.hn_:nnoun43ln:
ullIn file included from l ../src/s2/s1angle.hf u:_n28cN:
o)In file included from (n../src/s2/s2point.hnT:u*27l :
alIn file included from 
b../src/s2/s2coder.h      s:l| 23                     ^_:
n
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
iIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hiIn file included from :ts2/s2contains_vertex_query.cc29y::
_26In file included from u:
In file included from /usr/local/clang/include/absl/strings/cord.hnIn file included from s2/s2closest_cell_query.cc:k../src/s2/s2predicates.hn:82:o18:
55w:
In file included from :
nIn file included from )/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from ../src/s2/s2closest_cell_query.h,:/usr/local/clang/include/absl/flags/flag.h:
23:30      :
42:
| In file included from :
In file included from                                  ^/usr/local/clang/include/absl/crc/crc32c.hIn file included from ../src/s2/s2cell_index.h
:/usr/local/clang/include/absl/flags/internal/flag.h:32:/usr/local/clang/include/absl/base/nullability.h32:
30::
:
/usr/local/clang/include/absl/strings/str_format.h289In file included from /usr/local/clang/include/absl/base/call_once.h::../src/s2/s2cell_union.h:16534:195::29:8 :
16:In file included from note: : /usr/local/clang/include/absl/flags/flag.hexpanded from macro 'absl_nullability_unknown' :warning: 
40warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
289
/usr/local/clang/include/absl/flags/commandlineflag.h | :    #163165195d:e | f | 56 i n:e  i    onnwarning: cattype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eb*s
l_ fal_bnau  lsg163*l la | ba_ s lbnb_oionnoloinnlutlnl  yu_Pupl_a;nlkr
s nfol      aegw)|  Fnr       ^{ o_
N
mu      l/usr/local/clang/include/absl/base/nullability.h(| l               ^:a_
u241b/usr/local/clang/include/absl/base/nullability.hn:s:s22l241:p:e:c: 22is:tnote: f ireexpanded from macro 'absl_nonnull'dnote: iexpanded from macro 'absl_nonnull'

n
        g241|   _ |                                  ^241v#
 | ide#ewfd ivenafeli unaeeb, s alsb_tsnldo:_nn:nosIn file included from unts2/s2convex_hull_query.cclnruil:lln 26 g_*:
_NN oanbIn file included from onsu../src/s2/s2convex_hull_query.hnll_l:
nn25o      u:
n| l                     ^In file included from nl

../src/s2/s2cap.hu      :l| l30                     ^ :

eIn file included from r../src/s2/s1angle.hr:o28r:
)In file included from ;../src/s2/s2point.h
:      27| :
                                                       ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1242e: 44a:b swarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
non n1242In file included from u | s2/s2contains_vertex_query.ccl :l 26  :
_ In file included from Nt../src/s2/s2predicates.hoy:np55ne:
unIn file included from la/usr/local/clang/include/absl/flags/flag.hlm:
e42       :
a| bIn file included from                      ^s/usr/local/clang/include/absl/flags/internal/flag.h
l::30::
t/usr/local/clang/include/absl/base/call_once.hy:p200e:_40i:d ewarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ity<  T200> | :v:otiydp eL*o waLbesvle_lnCuallllaObniclei(tayb_suln:k:noonwcne
_      f| l                                           ^a
g*/usr/local/clang/include/absl/base/nullability.h :a289b:s34l:_ nnote: oexpanded from macro 'absl_nullability_unknown'n
nu  l289l |  #fdIn file included from leas2/s2crossing_edge_query.ccIn file included from fg:s2/s2closest_cell_query.cci,18 :Cn:
e18aIn file included from l :
a../src/s2/s2crossing_edge_query.hlIn file included from ab:../src/s2/s2closest_cell_query.hbs31l:l:
_30eIn file included from &n:
../src/s2/s2padded_cell.h&uIn file included from l: ../src/s2/s2cell_index.hfl23a:n:
,b
32In file included from i      :
../src/s2/s2cell_id.hl| In file included from                                        ^:i../src/s2/s2cell_union.h
43t::
y29/usr/local/clang/include/absl/base/nullability.hIn file included from _:
:../src/s2/s1angle.huIn file included from 241:n/usr/local/clang/include/absl/flags/flag.hk:n28:22o:
40:wIn file included from :
 n../src/s2/s2point.h/usr/local/clang/include/absl/flags/commandlineflag.hnote:  :_:expanded from macro 'absl_nonnull'27N193u
l:
:lIn file included from   27_../src/s2/s2coder.h241:u: |  n23#warning: s:
dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]epIn file included from 
fe/usr/local/clang/include/absl/status/status.hci:i  n67f193e:
i |  In file included from ae /usr/local/clang/include/absl/status/internal/status_internal.hbd 
:svl      _29nio| n:
nr                                 ^tIn file included from u
u/usr/local/clang/include/absl/strings/cord.hlal:l 82 _:
NvoIn file included from no/usr/local/clang/include/absl/crc/internal/crc_cord_state.hni:ud23l :
lRIn file included from 
e/usr/local/clang/include/absl/crc/crc32c.h      a:| d32(                     ^:
v
/usr/local/clang/include/absl/strings/str_format.ho:i380d:*43 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n380u | lIn file included from sls2/s2convex_hull_query.cct :dd26:s:
:tsIn file included from )t../src/s2/s2convex_hull_query.h r:ci25on:
ngIn file included from s&t../src/s2/s2cap.h  :S=30t :
r0In file included from A;../src/s2/s1angle.hp
:p      e28| n:
                          ^dIn file included from 
F../src/s2/s2point.ho:/usr/local/clang/include/absl/base/nullability.hr27:m:
241aIn file included from :t../src/s2/s2coder.h22(::s23 t:
note: dIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/status/status.h
::s67  t:
241rIn file included from  | i/usr/local/clang/include/absl/status/internal/status_internal.h#n:dge29*f:
 iIn file included from an/usr/local/clang/include/absl/strings/cord.hbe:s 94la:
_bIn file included from ns/usr/local/clang/include/absl/strings/internal/cordz_info.hol:n_31nn:
uo/usr/local/clang/include/absl/synchronization/mutex.hln:ln1249 u:dl8sl:t  ,_warning: 
Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      o
| n                                          ^n
 u1249l | /usr/local/clang/include/absl/base/nullability.hl :
 241        :T| *22                     ^ :a
b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle foibnjee catb,s
l      _| n       ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2crossing_edge_query.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2crossing_edge_query.h:  31241:
 | In file included from #../src/s2/s2padded_cell.hd:e23f:
iIn file included from n../src/s2/s2cell_id.he: 43a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, conIn file included from ss2/s2convex_hull_query.cct: 26F:
oIn file included from r../src/s2/s2convex_hull_query.hm:a25t:
SIn file included from p../src/s2/s2cap.he:c30<:
AIn file included from r../src/s2/s1angle.hg:s28.:
.In file included from .../src/s2/s2point.h>:&27 :
fIn file included from o../src/s2/s2coder.hr:m23a:
tIn file included from ,/usr/local/clang/include/absl/status/status.h
:      67| :
                       ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  1259241: | 14#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne  a1259b | s l _ n ocnonnusltl  T_*N oanbnsull_ln
o      n| n                     ^u
ll object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2convex_hull_query.cc:
:In file included from 26../src/s2/s2point.h:
:In file included from 27../src/s2/s2convex_hull_query.h:
:In file included from 25../src/s2/s2coder.h:
:In file included from 23../src/s2/s2cap.h:
:In file included from 30/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/strings/cord.h:
:In file included from 82../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
:In file included from 23/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/crc/crc32c.h:
:In file included from 32/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 469/usr/local/clang/include/absl/strings/cord.h::2094::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/synchronization/mutex.h:1260:43  :469  | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
t S N1260P | r i n t Fb(ocohla r(*a basbls:l:_tnyopnen_uildle notuittpyu<tT,> :s:ttdy:p:es:i:z*e _atb ssli_zneo,n
n      u| l                   ^l
 m/usr/local/clang/include/absl/base/nullability.he:t241h:o22d:) (note: )expanded from macro 'absl_nonnull'

      |                                             ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2crossing_edge_query.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2crossing_edge_query.h31::
31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2padded_cell.h1279::2335:
:In file included from  ../src/s2/s2cell_id.h:warning: 43type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
 In file included from 1279../src/s2/s2point.h | :v27o:
iIn file included from d../src/s2/s2coder.h :R23e:
gIn file included from i/usr/local/clang/include/absl/status/status.hs:t67e:
rIn file included from M/usr/local/clang/include/absl/status/internal/status_internal.hu:t29e:
xIn file included from P/usr/local/clang/include/absl/strings/cord.hr:o82f:
iIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:r23(:
vIn file included from o/usr/local/clang/include/absl/crc/crc32c.hi:d32 :
(/usr/local/clang/include/absl/strings/str_format.h*:a503b:s20l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l503  | f n )F(oirnmta6t4R_atw Swianikt(_Tc*y calbessl)_)n;o
n      n| u                                  ^l
l /usr/local/clang/include/absl/base/nullability.hr:a241w:)22 :  /note: /expanded from macro 'absl_nonnull' 
NO  L241I | N#Td
e      f| i                   ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2closest_cell_query.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2closest_cell_query.h::3130:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2cell_index.h1310::3217:
:In file included from  ../src/s2/s2cell_union.h:warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/flags/flag.h:42 :
1310In file included from  | /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 c/usr/local/clang/include/absl/base/call_once.ho:n52s:t24 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* ab   s52l | _sntodn:n:ualtlo mmiscg<,u icnotn3s2t_ tv>o*i da*b salb_snlo_nnnounlnlu lClo nctvr)o)l;W
o      r| d                ^(

      /usr/local/clang/include/absl/base/nullability.h| :                       ^241
:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:In file included from 30s2/s2closest_cell_query.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2closest_cell_query.h:
:In file included from 30../src/s2/s2point.h:
:In file included from 27../src/s2/s2cell_index.h:
:In file included from 32../src/s2/s2coder.h:
:In file included from 23../src/s2/s2cell_union.h:
:In file included from 29/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/flags/internal/flag.h:
:In file included from 30/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/base/call_once.h94::
53In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1310:47:    53 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  a b1310s | l : : o nccoen_sftl acgh*a ra*b salb_snlo_nnnounlnlu lfll amgs)g;,
       c| o                     ^n
st/usr/local/clang/include/absl/base/nullability.h :v241o:i22d:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ec va)b)s;l
_      n| o                                              ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:30:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnuIn file included from ls2/s2closest_point_query.ccl: 18b:
aIn file included from s../src/s2/s2closest_point_query.he:_29i:
nIn file included from t../src/s2/s2closest_point_query_base.he:r39n:
aIn file included from l../src/s2/s2point_index.h:::27C:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.ht:r66o:
lIn file included from W/usr/local/clang/include/absl/container/internal/btree.ho:r70d:
(In file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                                ^:

/usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/base/nullability.h501::24132::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 501# | dveofiidn eA papbesnld_Pnioencneusl(ls t_dN:o:nsnturliln
g      *|                       ^a
bsl_nonnulIn file included from ls2/s2closest_cell_query.cc :d18e:
sIn file included from t../src/s2/s2closest_cell_query.h,:
30      :
| In file included from                                ^../src/s2/s2cell_index.h
:32:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2cell_union.h::24129::
22In file included from :/usr/local/clang/include/absl/flags/flag.h :42note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h:30  :
241/usr/local/clang/include/absl/base/call_once.h | :#97d:e18f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab   sIn file included from 97ls2/s2crossing_edge_query.cc_ | : n18 o:
 nIn file included from  n../src/s2/s2crossing_edge_query.h u: l31ol:
n In file included from c_../src/s2/s2padded_cell.heN:_o23fn:
lnIn file included from au../src/s2/s2cell_id.hgl:*l43 
:
a      In file included from b| ../src/s2/s1angle.hs                     ^:l
28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :f23l:
aIn file included from g/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                 ^:
29:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24182::
22In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32  :
241 | /usr/local/clang/include/absl/strings/str_format.h#:d860e:f43i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n860o | n n uflrli e_nNdo nvnouildl 
A      b| s                     ^l
FormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:30:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40In file included from :s2/s2crossing_edge_query.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h  :11123 | :
vIn file included from o../src/s2/s2cell_id.hi:d43 :
LIn file included from o../src/s2/s1angle.hw:L28e:
vIn file included from e../src/s2/s2point.hl:C27a:
lIn file included from l../src/s2/s2coder.hO:n23c:
eIn file included from (/usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h::o29n:
cIn file included from e/usr/local/clang/include/absl/strings/cord.h_:f82l:
aIn file included from g/usr/local/clang/include/absl/crc/internal/crc_cord_state.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/crc/crc32c.hl:_32n:
o/usr/local/clang/include/absl/strings/str_format.hn:n867u:l60l:  fwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
g, C  a867l | l a belxep&l&i cfint, 
F      o| r                                       ^m
at/usr/local/clang/include/absl/base/nullability.hS:i241n:k22(:s tnote: rexpanded from macro 'absl_nonnull'_
fo  r241m | a#td_eifnitneer naabls:l:_FnoornmnautlSli n_kNIomnpnlu*l la
b      s| l                     ^_
nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:30:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |  In file included from  s2/s2closest_edge_query.cc : 18C:
aIn file included from l../src/s2/s2closest_edge_query.hl:O30n:
cIn file included from e../src/s2/s1angle.hI:m28p:
lIn file included from (../src/s2/s2point.hs:t27d:
:In file included from :../src/s2/s2coder.ha:t23o:
mi/usr/local/clang/include/absl/status/status.hc:<1031u:i42n:t 3warning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
t>* ab s1031l | _innolninnuel lc ocnosntt rsotla,t
u      s| _                                        ^i
nt/usr/local/clang/include/absl/base/nullability.he:r241n:a22l:: :note: Sexpanded from macro 'absl_nonnull't
at  u241s | R#edpe*f ianbes la_bnsoln_nnuolnln uSltla t_uNso:n:nRuelplT
o      P| o                     ^i
nter(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2closest_point_query.ccs2/s2closest_edge_query.cc::1818:
:
In file included from In file included from ../src/s2/s2closest_point_query.h../src/s2/s2closest_edge_query.h::2930:
:
In file included from In file included from ../src/s2/s2closest_point_query_base.h../src/s2/s1angle.h::3928:
:
In file included from In file included from ../src/s2/s2point_index.h../src/s2/s2point.h::2727:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2coder.h::6623:
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/status/status.h::701038:
:In file included from 33/usr/local/clang/include/absl/container/internal/layout.h:: 198:
warning: /usr/local/clang/include/absl/strings/str_cat.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
635:36:  warning: 1038type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      s635t | aitnulsi_nien tveorinda lS:t:rSAtpapteunsdR(espt*d :a:bsstlr_innogn*n ualbls lr_enpo)n n{u
l      l| )                                ^ 
{}/usr/local/clang/include/absl/base/nullability.h
:      241| :                                   ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull In file included from ds2/s2closest_cell_query.cce:s18t:
,In file included from  ../src/s2/s2closest_cell_query.hc:o30n:
sIn file included from t../src/s2/s2cell_index.h :A32l:
pIn file included from h../src/s2/s2cell_union.ha:N29u:
mIn file included from &/usr/local/clang/include/absl/flags/flag.h :a42):
;In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h      :| 30                            ^:

/usr/local/clang/include/absl/base/call_once.h:/usr/local/clang/include/absl/base/nullability.h194::24131::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 |   #194d | eifnilnien ea bsstld_:n:oantnoumlilc <_uNionntn3u2l_lt
>      *|                       ^a
bsl_nonnull ControlIn file included from Ws2/s2closest_edge_query.ccIn file included from o:s2/s2closest_point_query.ccr18:d:
18(In file included from :

../src/s2/s2closest_edge_query.hIn file included from       :../src/s2/s2closest_point_query.h| 30:                              ^:
29
In file included from :
../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.hIn file included from ::../src/s2/s2closest_point_query_base.h28241::
:39In file included from 22:
../src/s2/s2point.h:In file included from : ../src/s2/s2point_index.h27note: :expanded from macro 'absl_nonnull':
27
In file included from :
  ../src/s2/s2coder.hIn file included from 241:/usr/local/clang/include/absl/container/btree_map.h | 23:#:
66d:
e/usr/local/clang/include/absl/status/status.hIn file included from f:/usr/local/clang/include/absl/container/internal/btree.hi1063:n:70e13:
 :In file included from a /usr/local/clang/include/absl/container/internal/layout.hb:swarning: 198ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
_/usr/local/clang/include/absl/strings/str_cat.hn
:o637n:n 29u1063:l |  clwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n s
_tN   coh637an | rn*vu oaliblds
 l      _Sn| ot                     ^nrn
Auplple nSdtIn file included from (as2/s2closest_cell_query.ccst:tu18sdM:
e:In file included from s:../src/s2/s2closest_cell_query.hss:atg30re:
AiIn file included from snC../src/s2/s2cell_index.hgS:t*32 r:
(aIn file included from 
b../src/s2/s2cell_union.h      s:l| 29_            ^:
n
In file included from o/usr/local/clang/include/absl/flags/flag.hn:n/usr/local/clang/include/absl/base/nullability.h42u::
l241In file included from l:/usr/local/clang/include/absl/flags/internal/flag.h 22:d:30e :
snote: /usr/local/clang/include/absl/base/call_once.hexpanded from macro 'absl_nonnull't:,
195 :  c16o241:n |  #swarning: dttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e f
iAn  el195p  | ahb sal N _un moo&nn cnaeu,l_l
f       _lN| a                            ^ogn
n*u /usr/local/clang/include/absl/base/nullability.hla:bl241
s:l      22_| :n                     ^ o
note: nexpanded from macro 'absl_nonnull'n
ul  l241  | f#ldaegf)i n{e
       a| b               ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::strinIn file included from gs2/s2closest_cell_query.cc*: 18a:
bIn file included from s../src/s2/s2closest_cell_query.hl:_30n:
oIn file included from n../src/s2/s2cell_index.hn:u32l:
lIn file included from  ../src/s2/s2cell_union.hd:e29s:
tIn file included from ,/usr/local/clang/include/absl/flags/flag.h :c42o:
nIn file included from s/usr/local/clang/include/absl/flags/internal/flag.ht: 30A:
l/usr/local/clang/include/absl/base/call_once.hp:h200a:N40u:m &warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
,
      |                             ^  
200 | v/usr/local/clang/include/absl/base/nullability.ho:i241d: 22L:o wnote: Lexpanded from macro 'absl_nonnull'e
velC  a241l | l#Odnecfei(naeb salb:s:lo_nncoen_nfullalg *_ Naobnsnlu_lnlo
n      n| u                     ^l
l flag, Callable&& fn,
      |                                        ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2closest_point_query.cc::24118::
22In file included from :../src/s2/s2closest_point_query.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2closest_point_query_base.h:39  :
241In file included from  | ../src/s2/s2point_index.h#:d27e:
fIn file included from i/usr/local/clang/include/absl/container/btree_map.hn:e66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l70_:
nIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:n198u:
l/usr/local/clang/include/absl/strings/str_cat.hl: 641_:N29o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^641
 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2contains_vertex_query.cc23::
26In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2predicates.h67::
55In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/flags/flag.h29::
110/usr/local/clang/include/absl/strings/cord.h::29938:: 35:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
    110938 |  | v o i d  aSbselt:F:lcaogr(da_bisnlt:e:rFnlaalg:<:TC>o*r daRbespl*_ naobnsnlu_lnlo nfnlualgl,  acso_ntsrte eT(&)  vc)o n{s
t      ;| 
                            ^      
|                                   ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |   In file included from  s2/s2contains_vertex_query.cc :c26o:
nIn file included from s../src/s2/s2predicates.ht: 55c:
h/usr/local/clang/include/absl/flags/flag.ha:r118*: 29a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n118u | lvlo iads _ScehtaFrlsa(g)( acbosnls:t:;F
l      a| g                ^<
T>/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dfelfaign,e  caobnsslt_ nVo&n nvu)l l{ 
_      N| o                            ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2convex_hull_query.ccl:_26n:
oIn file included from n../src/s2/s2convex_hull_query.hn:u25l:
lIn file included from  ../src/s2/s2cap.h_:N30o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25In file included from :
s2/s2closest_cell_query.ccIn file included from :../src/s2/s2cap.h18::
30In file included from :
../src/s2/s2closest_cell_query.hIn file included from :../src/s2/s1angle.h30::
28In file included from :
../src/s2/s2cell_index.hIn file included from :../src/s2/s2point.h32::
27In file included from :
../src/s2/s2cell_union.hIn file included from :../src/s2/s2coder.h29::
23:
/usr/local/clang/include/absl/flags/flag.hIn file included from :/usr/local/clang/include/absl/status/status.h110::6729:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/cord.h:1017:51:   110 | warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
id S e1017t | F l a g (vaobisdl :s:eFtl_acgo<rTd>z*_ ianbfsol(_cnoorndn_uilnlt efrlnaagl,: :cCoonrsdtz ITn&f ov*)  a{b
s      l| _                            ^n
onnu/usr/local/clang/include/absl/base/nullability.hl:l241 :c22o:r dnote: zexpanded from macro 'absl_nonnull'_
in  f241o | )# d{e
f      i| n                                                  ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:30:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull fIn file included from ls2/s2convex_hull_query.cca:g26,:
 In file included from c../src/s2/s2convex_hull_query.ho:n25s:
tIn file included from  ../src/s2/s2cap.hV:&30 :
vIn file included from )../src/s2/s1angle.h :{28
:
      In file included from | ../src/s2/s2point.h                            ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241 | /usr/local/clang/include/absl/strings/cord.h#:d1049e:f56i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_ n1049o | n n usltla t_iNco nbnouolll 
G      e| t                     ^F
latAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nuIn file included from ls2/s2closest_edge_query.ccl:a18b:
lIn file included from e../src/s2/s2closest_edge_query.h :_31N:
uIn file included from l../src/s2/s1chord_angle.hl:a31b:
lIn file included from e../src/s2/s2pointutil.h
:      27| :
                      ^
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: In file included from expanded from macro 'S2_CHECK_NE's2/s2convex_hull_query.cc
:26:
   In file included from 37../src/s2/s2convex_hull_query.h | :#25d:
eIn file included from f../src/s2/s2cap.hi:n30e:
 In file included from S../src/s2/s1angle.h2:_28C:
HIn file included from E../src/s2/s2point.hC:K27_:
NIn file included from E../src/s2/s2coder.h :C23H:
EIn file included from C/usr/local/clang/include/absl/status/status.hK:_67N:
EIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                    ^:

/usr/local/clang/include/absl/strings/cord.h:1258/usr/local/clang/include/absl/log/check.h::36120:: 3warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'CHECK_NE'
 1258 |   i120n | l i nAeB ScLo_rLdO_Gi_nItNeTrEnRaNlA:L:_CCoHrEdCRKe_pNFEl_aItM*P La(b(svla_ln1o)n,n u#lvla
l      1| ,                                   ^ 
(v/usr/local/clang/include/absl/base/nullability.ha:l2412:)22,:  #note: vexpanded from macro 'absl_nonnull'a
l2  )241
 |       #| d  ^e
fi/usr/local/clang/include/absl/log/internal/check_impl.hn:e51 :a3b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'n
onn   u51l | l   _ANBoSnLn_uLlOlG
_      I| N                     ^T
ERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 257s2/s2convex_hull_query.cc::2326::
 In file included from note: ../src/s2/s2convex_hull_query.hexpanded from macro 'absl_nullable':
25:
  In file included from 257../src/s2/s2cap.h | :#30d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
a/usr/local/clang/include/absl/strings/cord.hb:l1268e:
51      :|                        ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull repIn file included from ,s2/s2closest_edge_query.cc
:      18| :
                                                  ^In file included from 
../src/s2/s2closest_edge_query.h:31/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1chord_angle.h::2231::
 In file included from ../src/s2/s2pointutil.hnote: :expanded from macro 'absl_nonnull'27
:
  ../src/s2/util/math/matrix3x3.h241: | 276#:d5e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 a../src/s2/base/logging.hb:s37l:_21n:o nnote: nexpanded from macro 'S2_CHECK_NE'u
ll    37_ | N#odnenfuilnle
       S| 2                     ^_
CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (valIn file included from In file included from 2s2/s2crossing_edge_query.ccs2/s2convex_hull_query.cc)::,18 26:
#:
vIn file included from aIn file included from l../src/s2/s2crossing_edge_query.h../src/s2/s2convex_hull_query.h2:):31
25:
      :
In file included from | In file included from ../src/s2/s2padded_cell.h  ^../src/s2/s2cap.h:
:2330/usr/local/clang/include/absl/log/internal/check_impl.h:
:
:In file included from In file included from 51../src/s2/s2cell_id.h../src/s2/s1angle.h:::34328::
:
 In file included from In file included from note: ../src/s2/s1angle.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'../src/s2/s2point.h:
:2827:
:
   In file included from In file included from 51../src/s2/s2point.h../src/s2/s2coder.h | : :27 23A:
B:
In file included from SIn file included from ../src/s2/s2coder.hL/usr/local/clang/include/absl/status/status.h::_2367L:
:
OIn file included from In file included from G/usr/local/clang/include/absl/status/status.h_/usr/local/clang/include/absl/status/internal/status_internal.hI:N:T67E29:
R:
In file included from N/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/internal/status_internal.hA::L127529_::
C51HIn file included from E: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.hC
K_OP (1275C | hienclki_nNeE ,v o!i=d,  Cvoarld1:,: Ivnalli1n_etReexpt:,: Evmalp2l,a cveaTlr2e_et(eCxotr)d
R      e| p  ^*
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s75l:_61n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'u
ll    r75e | p , 
A      B| S                                                  ^L
_L/usr/local/clang/include/absl/base/nullability.hO:G241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241C | H#EdCeKf(i:n:ea basbls:l:_inmopnlniuclilt __cNaosntn<ucloln
s      t|                       ^c
h:a86r:
* /usr/local/clang/include/absl/strings/cord_analysis.ha:b32s:l47_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull>(    32  |  s i z\e
_      t|                                                              ^G
et/usr/local/clang/include/absl/base/nullability.hE:s241t:i22m:a tnote: eexpanded from macro 'absl_nonnull'd
Me  m241o | r#ydUesfIn file included from ais2/s2convex_hull_query.ccneg ea:(b26cs:
olIn file included from n_../src/s2/s2convex_hull_query.hsn:ot25n :
nCIn file included from uo../src/s2/s2cap.hlr:ld30 R_:
eNIn file included from opn../src/s2/s1angle.h*n: u28al:
blIn file included from s
../src/s2/s2point.hl      :_| 27n                     ^:
o
In file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.hr:e67p:
)In file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                                              ^
/usr/local/clang/include/absl/strings/cord.h:1282:47:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull' 
1282 | i  n241l | i#ndee fvionied  aCbosrld_:n:oInnnluilnle R_eNpo:n:nSueltlT
r      e| e                     ^(
CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2crossing_edge_query.cc22::18 :
In file included from note: ../src/s2/s2crossing_edge_query.hexpanded from macro 'absl_nonnull':
31:
In file included from   ../src/s2/s2padded_cell.h241: | 23#:
dIn file included from e../src/s2/s2cell_id.hf:i43n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| In file included from                      ^/usr/local/clang/include/absl/strings/cord.h
:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnullIn file included from  s2/s2convex_hull_query.ccr:e26p:
)In file included from ;../src/s2/s2convex_hull_query.h
:      25| :
                                                ^In file included from 
../src/s2/s2cap.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
s/usr/local/clang/include/absl/strings/cord.hl:_1290n:o54n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _No n1290n | uilnll
i      n| e                     ^ 
void Cord::InlineReIn file included from ps2/s2crossing_edge_query.cc:::18S:
eIn file included from t../src/s2/s2crossing_edge_query.hT:r31e:
eIn file included from O../src/s2/s2padded_cell.hr:E23m:
pIn file included from t../src/s2/s2cell_id.hy:(43C:
oIn file included from r../src/s2/s1angle.hd:R28e:
pIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hr:e29p:
,In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 86                                                     ^:

/usr/local/clang/include/absl/strings/cord_analysis.h:56/usr/local/clang/include/absl/base/nullability.h::56257:: 23:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nullable'
     25756 |  | #sdiezfei_nte  GaebtsEls_tniumlaltaebdlFea i_rNSuhlalraebMleem
o      r| y                      ^U
sage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnIn file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                  ull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #defineIn file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assiIn file included from gs2/s2edge_clipping.ccn:_18i:
mIn file included from p../src/s2/s2edge_clipping.hl:,34 :
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from &/usr/local/clang/include/absl/log/check.h,: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
&In file included from ,/usr/local/clang/include/absl/log/internal/check_op.h
:      40| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
/usr/local/clang/include/absl/log/internal/nullstream.h:  37529:
 |  /usr/local/clang/include/absl/strings/string_view.h : 53 : 54 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
        t   r53u | ec,o ntsrtueex)p;r
       s| t                  ~~~~~~~~~~~r
ing/usr/local/clang/include/absl/container/internal/btree_container.h_:v511i:e47w:  Nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
lSa  f511e | S t r i n g V i e w (AcBoSnLs_tI NcThEaRrN*A La_bAsTlT_RnIuBlUlTaEb_lCeA PpT)U R{E
D      _| B                                                     ^Y
(this))/usr/local/clang/include/absl/base/nullability.h): 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l\_
n      u| l                                              ^~~~l
able _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTUIn file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
RED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull ou/usr/local/clang/include/absl/container/internal/btree_container.ht:)540;:
3      :|                                          ^warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/base/nullability.h:241  :54022 | :   note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ Xa(bisnls_enrotn_nourl_la s_sNiognnn,u liln
s      e| r                     ^t
_or_assign_impl, &&, const &, false,
In file included from       s2/s2closest_cell_query.cc| :  ^18
:
In file included from ../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/container/internal/btree_container.h::32509:
:In file included from 52../src/s2/s2closest_cell_query_base.h:: 33:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/container/btree_set.h
:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h  :50970 | :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/stringify_sink.hS:L23_:
I/usr/local/clang/include/absl/strings/numbers.hN:T77E:R61N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
TTRI   B77U | T[E[_nCoAdPiTsUcRaErDd_]B]Y (btohoils )S)i,m p l e A t o f ( a b s l : : s t r i n g _ v i e\w
       s| t                                                   ^r
, /usr/local/clang/include/absl/container/internal/common.hf:l32o:a9t:*  note: amacro 'ABSL_INTERNAL_IF_false' defined hereb
sl_   n32o | n#nduelfli noeu tA)B;S
L      _| I                                                            ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:I Fnote: _expanded from macro 'absl_nonnull'f
al  s241e | (#idfe_fsiantei safbiseld_,n o.n.n.u)l l_ __VNAo_nAnRuGlSl_
_      
|                            ^| 
        ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2closest_cell_query.cc::6718:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2closest_cell_query.h540::323:
:In file included from  ../src/s2/s2closest_cell_query_base.h:warning: 33passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
  In file included from 540/usr/local/clang/include/absl/container/internal/btree.h | : 70 :
AIn file included from B/usr/local/clang/include/absl/container/internal/layout.hS:L198_:
IIn file included from N/usr/local/clang/include/absl/strings/str_cat.hT:E116R:
NIn file included from A/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23X:
(/usr/local/clang/include/absl/strings/numbers.hi:n88s:e62r:t _warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_ass   i88g | n[,[ niondsiesrcta_rodr]_]a sbsoiogln _Siimmppll,e A&t&o,d (caobnsslt: :&s, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496In file included from :9s2/s2crossing_edge_query.cc:: 18note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
../src/s2/s2crossing_edge_query.h:31:
  In file included from 496../src/s2/s2padded_cell.h | :#23d:
eIn file included from f../src/s2/s2cell_id.hi:n43e:
 In file included from A../src/s2/s1angle.hB:S28L:
_In file included from I../src/s2/s2point.hN:T27E:
RIn file included from N../src/s2/s2coder.hA:L23_:
XIn file included from (/usr/local/clang/include/absl/status/status.hF:u67n:
cIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :C29a:
lIn file included from l/usr/local/clang/include/absl/strings/cord.he:e94,:
 In file included from K/usr/local/clang/include/absl/strings/internal/cordz_info.hQ:u31a:
l,/usr/local/clang/include/absl/synchronization/mutex.h :M489Q:u14a:l ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]K
Valu  e489, |   M V a l u ev,o i.d. .()* a b s l _\n
u      l| l        ^a
ble invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2coder.h542::233:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 542/usr/local/clang/include/absl/strings/cord.h | : 94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T489E:R45N:A Lwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]X
(in  s489e | r t _ o r _ avsosiidg n(,* aibnssle_rntu_lolra_balses iignnv_airmipaln,t )&(&v,o icdo*n satb s&l,_ nfualllsaeb,i
l      i| t  ^y
_u/usr/local/clang/include/absl/container/internal/btree_container.hn:k509n:o52w:n )note: ,expanded from macro 'ABSL_INTERNAL_X'

      |                                             ^
  509 | /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
 A  B289S | L#_dIeNfTiEnReN AaLb_sAlT_TnRuIlBlUaTbEi_lCiAtPyT_UuRnEkDn_oBwYn( t_hNiusl)l)_,u n s p e c i f i e d 
        In file included from | s2/s2closest_edge_query.cc                                 ^: 
18 :
 In file included from  ../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.hIn file included from  :s2/s2crossing_edge_query.cc 32:\:
18
In file included from :
      /usr/local/clang/include/absl/container/btree_set.hIn file included from | :../src/s2/s2crossing_edge_query.h                                                   ^65:
:
31In file included from /usr/local/clang/include/absl/container/internal/common.h:
/usr/local/clang/include/absl/container/internal/btree.h:In file included from :32../src/s2/s2padded_cell.h70:::
923In file included from ::
/usr/local/clang/include/absl/container/internal/layout.h In file included from :note: ../src/s2/s2cell_id.h198macro 'ABSL_INTERNAL_IF_false' defined here::

43In file included from :
/usr/local/clang/include/absl/strings/str_cat.h   In file included from :32116../src/s2/s1angle.h | :
:#In file included from 28d/usr/local/clang/include/absl/strings/internal/stringify_sink.he:
:fIn file included from 23i../src/s2/s2point.h:
n:e27/usr/local/clang/include/absl/strings/numbers.h :
:AIn file included from 66B../src/s2/s2coder.h:S41:L:23_ :
IIn file included from warning: N/usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T:E
67R:
NIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hL   :_6629I | :
 FIn file included from _ /usr/local/clang/include/absl/strings/cord.hf : a94 l :
s In file included from  e/usr/local/clang/include/absl/strings/internal/cordz_info.h ( i:f 31 _:
s /usr/local/clang/include/absl/synchronization/mutex.ha :t 490i :s 13f :i   e d warning:  ,type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]  
. . .   ) 490   |  _i_n Vt _At _yA pRe G*  vSao_bi_sd
*l      _ | na        ^ob
nsnlu_lnlu In file included from ls2/s2closest_point_query.ccol:uat18)b:
;iIn file included from l
../src/s2/s2closest_point_query.hi      :t| 29                                        ^y:

_In file included from u../src/s2/s2closest_point_query_base.hn:/usr/local/clang/include/absl/base/nullability.hk39n:
:o241In file included from wn:../src/s2/s2point_index.h 22:a:27r :
gnote: In file included from )expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/btree_map.h;
:
67        :
| 241/usr/local/clang/include/absl/container/internal/btree_container.h            ^ | :#
d542/usr/local/clang/include/absl/base/nullability.he::f3i289n::e 34 warning: a:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b 
snote: lexpanded from macro 'absl_nullability_unknown'  _
542n |    o289 n | An#BudlSeLl_f IiN_TnNEoeR nNnaublslA
lL      __| n                     ^Xu
(lilnasbeirlti_toyr__uansksniogwnn,  _iNnuslelr_tu_nosrIn file included from p_s2/s2closest_edge_query.ccea:cs18is:
fiiIn file included from gen../src/s2/s2closest_edge_query.hd_:
i34m      p:
| lIn file included from                                  ^,../src/s2/s2closest_edge_query_base.h
 :&32&:
,In file included from  /usr/local/clang/include/absl/container/btree_set.hc:o65n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h :In file included from &70s2/s2crossing_edge_query.cc,:
:In file included from  18/usr/local/clang/include/absl/container/internal/layout.hf:
a:In file included from l198../src/s2/s2crossing_edge_query.hs:
e:In file included from ,31/usr/local/clang/include/absl/strings/str_cat.h
:
:      In file included from 116| ../src/s2/s2padded_cell.h:
  ^:In file included from 
23/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from :23../src/s2/s2cell_id.h511:
::/usr/local/clang/include/absl/strings/numbers.h4352::
:77In file included from  :../src/s2/s1angle.hnote: 61expanded from macro 'ABSL_INTERNAL_X'::
28 :
  warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]511../src/s2/s2point.h
 | : 27 :
    In file included from  77../src/s2/s2coder.h  | :[ 23[ :
 nIn file included from o /usr/local/clang/include/absl/status/status.hd :iA67sB:
cSIn file included from La/usr/local/clang/include/absl/status/internal/status_internal.hr_:dI29]N]T :
bEoIn file included from Ro/usr/local/clang/include/absl/strings/cord.hlN A:SL94_i:
AmIn file included from pT/usr/local/clang/include/absl/strings/internal/cordz_info.hTl:Re31IA:
Bt/usr/local/clang/include/absl/synchronization/mutex.hUoTf:E(499_:aC35bAs:Pl T:Uwarning: R:Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]sDt_
rBi  nY499g( | _t vh iivse)ow)i d)s t rE,   nfa bl ol ae Dte b* u gaLbtosgr(lic_nnoognn_nsvtui elcwlh  aosrut*rt ,)a; 
bds      olu_b| nlu                                                            ^el*
l a/usr/local/clang/include/absl/base/nullability.hab:bls241el :_n22naomnen):u;l 
lnote:        expanded from macro 'absl_nonnull'| o                                  ^
u
t  )241/usr/local/clang/include/absl/base/nullability.h; | :
#257      d:| e23                                                             ^f:i
n enote: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nullable' :
a241b  s:l257_22 | n:o# dnnote: enexpanded from macro 'absl_nonnull'ufl
iln e   _241Na | obn#sndlue_fnilulnl
el       a| a                     ^bbl
sel __nNounlnlualbll e_
N      o| n                      ^n
ull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:In file included from 62s2/s2closest_cell_query.cc:: 18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h   :In file included from 8833s2/s2crossing_edge_query.cc | :
[:In file included from [18/usr/local/clang/include/absl/container/btree_set.hn:
o:dIn file included from 65i../src/s2/s2crossing_edge_query.h:
s:cIn file included from 31a/usr/local/clang/include/absl/container/internal/btree.hr:
d:In file included from ]70../src/s2/s2padded_cell.h]:
: In file included from 23b/usr/local/clang/include/absl/container/internal/layout.ho:
o:In file included from l198../src/s2/s2cell_id.h :
S:In file included from i43m/usr/local/clang/include/absl/strings/str_cat.hp:
l:eIn file included from 116A../src/s2/s1angle.h:
t:In file included from o28d/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
(:In file included from a23../src/s2/s2point.hb:
s/usr/local/clang/include/absl/strings/numbers.hl:::27:98:
s:In file included from t60r../src/s2/s2coder.h:i:n 23gwarning: :
_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]vIn file included from 
i/usr/local/clang/include/absl/status/status.he:w   67 98s:
 | tIn file included from [r/usr/local/clang/include/absl/status/internal/status_internal.h,[ :nd29oo:
duIn file included from bi/usr/local/clang/include/absl/strings/cord.hls:ec*94a :
arIn file included from bd/usr/local/clang/include/absl/strings/internal/cordz_info.hs]l:]_31 n:
ob/usr/local/clang/include/absl/synchronization/mutex.hon:no549ull:l  40oS:iu mtwarning: p)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l;

e      A|                                                                ^t549o
 | b /usr/local/clang/include/absl/base/nullability.h( :asb241ts:al22t::i: cs note: tvroexpanded from macro 'absl_nonnull'iin
dg _  Iv241ni | c#erdweef msietnrnte, S aybbnosclo_hlnSo*en nmua(bMlsullt_ e_nxNoo*nn nnauubllslll
_ n      oo| un                     ^tn
)u;l
l       | m                                                           ^u
,
      /usr/local/clang/include/absl/base/nullability.h| :                                       ^241
:22:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
In file included from   #s2/s2closest_edge_query.cc241d: | e#18fdien:
feiIn file included from  na../src/s2/s2closest_edge_query.heb sal:b_s34nl:
o_nnnouIn file included from nln../src/s2/s2closest_edge_query_base.hlu :l_lN 32o:
_nNnIn file included from oun/usr/local/clang/include/absl/container/btree_set.hln:lu
65l      l:
| 
                     ^In file included from       
/usr/local/clang/include/absl/container/internal/btree.h| :                     ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98In file included from :s2/s2crossing_edge_query.cc60::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2crossing_edge_query.h
In file included from :s2/s2closest_cell_query.cc31:   :
1898In file included from :
 | ../src/s2/s2padded_cell.h[In file included from :[../src/s2/s2closest_cell_query.h23n::
o32dIn file included from :
i../src/s2/s2cell_id.hIn file included from s:c../src/s2/s2closest_cell_query_base.ha43:r:
33dIn file included from :
]../src/s2/s1angle.hIn file included from ]:/usr/local/clang/include/absl/container/btree_set.h 28:b:
o65oIn file included from :
l../src/s2/s2point.h In file included from S:i/usr/local/clang/include/absl/container/internal/btree.hm27p:l:
e70In file included from A:
t../src/s2/s2coder.hIn file included from o:b/usr/local/clang/include/absl/container/internal/layout.h23(::
a198bIn file included from :
s/usr/local/clang/include/absl/status/status.hlIn file included from ::/usr/local/clang/include/absl/strings/str_cat.h67:::
s116In file included from t:
r/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from i:n/usr/local/clang/include/absl/strings/internal/stringify_sink.hg29_:v:
23iIn file included from :
e/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/numbers.hw: :s94112t:
:rIn file included from ,44 /usr/local/clang/include/absl/strings/internal/cordz_info.h:b: owarning: o31ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*:
 /usr/local/clang/include/absl/synchronization/mutex.ha
b:s550l  _:n112o64 | n: n  uwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l l
   o u   t550)  |     ; 
            |                                                             ^   
     /usr/local/clang/include/absl/base/nullability.h   :   241   :  22  :     note:  expanded from macro 'absl_nonnull'   
         241i  | n# dte _f t yi np ee * ba abassble_s_nloin_nntnouenlrnln ua_lNlol: n:nouPulelt
r)      T;h| 
                     ^r      
e| a                                           ^d
Sy/usr/local/clang/include/absl/base/nullability.hn:c241h:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf In file included from iws2/s2closest_edge_query.ccn):e;18 
a:
      bIn file included from | s                                                               ^../src/s2/s2closest_edge_query.hl
_:/usr/local/clang/include/absl/base/nullability.hn34:o:
241nIn file included from :n../src/s2/s2closest_edge_query_base.h22u::l32 l:
note:  expanded from macro 'absl_nonnull'In file included from _
N/usr/local/clang/include/absl/container/btree_set.h  o:241n65 | n:
#udIn file included from lel/usr/local/clang/include/absl/container/internal/btree.hf
:i      n70| e                     ^:
 
aIn file included from b/usr/local/clang/include/absl/container/internal/layout.hs:l198_:
nIn file included from o/usr/local/clang/include/absl/strings/str_cat.hn:n116u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h :_23N:
o/usr/local/clang/include/absl/strings/numbers.hn:n112u:l44l:In file included from 
 s2/s2closest_cell_query.cc      warning: :| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18                     ^
:

In file included from ../src/s2/s2closest_cell_query.h:  32112:
 | In file included from  ../src/s2/s2closest_cell_query_base.h : 33 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 65In file included from  :
 s2/s2crossing_edge_query.ccIn file included from  :/usr/local/clang/include/absl/container/internal/btree.h 18: :
70 In file included from :
 ../src/s2/s2crossing_edge_query.h In file included from : /usr/local/clang/include/absl/container/internal/layout.h31 : :
 198 In file included from :
 ../src/s2/s2padded_cell.hIn file included from  :/usr/local/clang/include/absl/strings/str_cat.h 23: :
116 In file included from :
 ../src/s2/s2cell_id.h In file included from : /usr/local/clang/include/absl/strings/internal/stringify_sink.h 43 ::
 23In file included from  :
../src/s2/s1angle.h/usr/local/clang/include/absl/strings/numbers.hi:n:t28116:
_:tIn file included from 55y../src/s2/s2point.h:p: e27*warning: :
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from a
../src/s2/s2coder.hb:s23  l:
116_In file included from n | /usr/local/clang/include/absl/status/status.ho n:n 67 u:
 lIn file included from  l/usr/local/clang/include/absl/status/internal/status_internal.h  : o29 u:
 tIn file included from ) /usr/local/clang/include/absl/strings/cord.h; 
:       94 | :
                                           ^ In file included from  
/usr/local/clang/include/absl/strings/internal/cordz_info.h In file included from :/usr/local/clang/include/absl/base/nullability.h s2/s2convex_hull_query.cc 31:: :
 24126/usr/local/clang/include/absl/synchronization/mutex.h ::
: 22In file included from 551 :../src/s2/s2convex_hull_query.h:  :40 note: 25expanded from macro 'absl_nonnull': :
 
 In file included from  ../src/s2/s2cap.h  warning:  :241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 30  | 
:
 #In file included from d e  ../src/s2/s1angle.h f551: i | 28    n:
es In file included from   ta../src/s2/s2point.h aab:tbis27lsc:
_l In file included from bn:../src/s2/s2coder.hoo::oni23nltn:
u 1In file included from lDl2/usr/local/clang/include/absl/status/status.he 8:*c_67N orn:
aenb/usr/local/clang/include/absl/status/internal/status_internal.hmus:elll149n_t
:nSo      13ynn| :ncu                     ^ hl
warning: Sltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
mo(uMtu)t;e
  x      149*|  |                                                        ^ca
obns/usr/local/clang/include/absl/base/nullability.hsl:t_241 n:co22hn:an ruIn file included from note: *l s2/s2closest_edge_query.ccexpanded from macro 'absl_nonnull'la :
bms18  ul,:
241_
nIn file included from  |       #od../src/s2/s2closest_edge_query.h| n                                       ^neu:
fli34/usr/local/clang/include/absl/base/nullability.hln :
:eM In file included from 241aak../src/s2/s2closest_edge_query_base.h:bes:22Clh32:_en:
 cokIn file included from note: nexpanded from macro 'absl_nonnull'nFu/usr/local/clang/include/absl/container/btree_set.h
alil:  l S65241 | _        t  r i n g ( 
\      
|                   ^| 
                                                   ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/common.h::24131::229::  note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_true' defined here

  241    | 31# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_utlrlu
e      (| i                     ^f
_satisfied,In file included from  s2/s2convex_hull_query.cc.:.26.:
)In file included from  ../src/s2/s2convex_hull_query.hi:f25_:
sIn file included from a../src/s2/s2cap.ht:i30s:
fIn file included from i../src/s2/s1angle.he:d28
:
      In file included from | ../src/s2/s2point.h        ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |  In file included from  s2/s2closest_point_query.cc : 18c:
oIn file included from n../src/s2/s2closest_point_query.hs:t29 :
aIn file included from b../src/s2/s2closest_point_query_base.hs:l39::
:In file included from S../src/s2/s2point_index.ht:a27t:
uIn file included from s/usr/local/clang/include/absl/container/btree_map.h*: 67a:
b/usr/local/clang/include/absl/container/internal/btree_container.hs:l542_:n3o:n nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
l stat  u542s | ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_innosnenrutl_lo rp_raesfsiixg)n;,
       i| n                        ^s
er/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  _241i | m#pdle,f i&n&e,  acbosnls_tn o&n,n uflall s_eN,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l
        543|  |                      ^ 
          In file included from  s2/s2convex_hull_query.cc : 26 :
 In file included from  ../src/s2/s2convex_hull_query.h :t25r:
uIn file included from e../src/s2/s2cap.h):;30
:
      In file included from | ../src/s2/s1angle.h                  ~~~~~:
28/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/s2point.h::4727::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'ABSL_INTERNAL_X'23
:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
511 | /usr/local/clang/include/absl/status/internal/status_internal.h : 150 : 58 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S150L | _ I N T EcRoNnAsLt_ AaTbTsRlI:B:USTtEa_tCuAsP*T UaRbEsDl__BnYo(ntnhuilsl) )s)t a t u s ,   c o n s t   c h a r *   a b s l _ n\o
n      n| u                                              ^~~~l
l prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | /usr/local/clang/include/absl/container/internal/btree_container.h : 544 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       544  |      A B S L _ I N T E R N A L _ X ( i n s e r t _aobrs_la:s:suiignnt,1 2i8n*s earbts_lo_rn_oansnsuilgln _oiumtp)l;,
       &| &                                                       ^,
 co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22&:,  note: texpanded from macro 'absl_nonnull'r
ue  ,241
 |       #| d  ^e
fi/usr/local/clang/include/absl/container/internal/btree_container.hn:e509 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onn  u509l | l   _ N o n n u l l 
A      B| S                     ^L
_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) ifIn file included from _s2/s2closest_cell_query.ccs:a18t:
iIn file included from s../src/s2/s2closest_cell_query.hf:i32e:
dIn file included from 
../src/s2/s2closest_cell_query_base.h      :| 33        ^:

In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:In file included from 23s2/s2closest_point_query.cc:
:18/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 152../src/s2/s2closest_point_query.h::3729::
 In file included from ../src/s2/s2closest_point_query_base.hwarning: :39type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point_index.h:27:
  In file included from 152/usr/local/clang/include/absl/container/btree_map.h | :67v:
o/usr/local/clang/include/absl/container/internal/btree_container.hi:d544 :P3u:t Twarning: w'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
Digit  s544( | u i nAtB3S2L__tI NiT,E RcNhAaLr_*X (aibnssle_rnto_nonru_lals sbiugfn),; 
i      n| s                                    ^e
rt/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n_  i241m | p#ld,e f&i&n,e  caobnsslt_ n&o,n nturlule ,_
N      o| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ul  l545
 |        |                       ^ 
               false);
      |                   ~~~~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2closest_cell_query.cc::50918::
47In file included from :../src/s2/s2closest_cell_query.h :32note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2closest_cell_query_base.h:33:
In file included from   /usr/local/clang/include/absl/container/btree_set.h509: | 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198A:
BIn file included from S/usr/local/clang/include/absl/strings/str_cat.hL:_116I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hE:R23N:
A/usr/local/clang/include/absl/strings/numbers.hL:_156A:T55T:R Iwarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
TE_C  A156P | TbUoRoElD _sBaYf(et_hsitsr)t)o,8 _ b a s e ( a b s l : : s t r i n g _ v i e w  \t
e      x| t                                              ^~~~,
 int8_t/usr/local/clang/include/absl/container/internal/btree_container.h*: 544a:b3s:l _warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l52 :v anote: lexpanded from macro 'ABSL_INTERNAL_X'u
e,
        511|  |                                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ AaTbTsRlI_BnUoTnEn_uClAlP T_UNRoEnDn_uBlYl(
t      h| i                     ^s
)))                     In file included from  s2/s2closest_cell_query.cc:
 :18 :
\In file included from In file included from 
../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/container/internal/btree.h      ::| 32                                                   ^70:

:
In file included from In file included from ../src/s2/s2closest_cell_query_base.h/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/layout.h:::3332198:
::
In file included from 9In file included from /usr/local/clang/include/absl/container/btree_set.h:/usr/local/clang/include/absl/strings/str_cat.h: :65116note: :
:
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/container/internal/btree.h::23   70:
32:
 | In file included from /usr/local/clang/include/absl/strings/numbers.h#/usr/local/clang/include/absl/container/internal/layout.h:d:116e198:f:
55iIn file included from :n/usr/local/clang/include/absl/strings/str_cat.h e:warning:  116type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A:

BIn file included from S/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23I:
N  T/usr/local/clang/include/absl/strings/numbers.h116E: | R158 N: A57 L: _  Iwarning:  Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] _
 f a l   s158 e |  (b io fo _l s  as ta if se f_ is et dr ,t  o .1 .6 ._ )b  a _s _e V( Aa _b As Rl G:aS:b_ss_tl
r:      i:| ni        ^gn
_tv1i2e8w*  taebxstl,_ nionntn1u6l_lt *o uatb)s;l
_      n| o                                                      ^n
null/usr/local/clang/include/absl/base/nullability.h :v241a:l22u:e ,note: 
expanded from macro 'absl_nonnull'      
|                                                         ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
In file included from       s2/s2closest_point_query.cc| :                     ^18
:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: In file included from warning: s2/s2closest_cell_query.ccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
18:
In file included from ../src/s2/s2closest_cell_query.h  :54732 | :
 In file included from  ../src/s2/s2closest_cell_query_base.h : 33 :
In file included from  In file included from s2/s2closest_edge_query.cc /usr/local/clang/include/absl/container/btree_set.h: :18 65:
 :
In file included from  In file included from ../src/s2/s2closest_edge_query.h /usr/local/clang/include/absl/container/internal/btree.h: :34 70:
 :
In file included from  In file included from ../src/s2/s2closest_edge_query_base.h/usr/local/clang/include/absl/container/internal/layout.h :: 32198t:
:
rIn file included from In file included from /usr/local/clang/include/absl/container/btree_set.hu/usr/local/clang/include/absl/strings/str_cat.h:e:65)116:
;:
In file included from 
In file included from /usr/local/clang/include/absl/container/internal/btree.h      /usr/local/clang/include/absl/strings/internal/stringify_sink.h:| :70                      ^23:

:
In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/container/internal/btree_container.h:::198160496:
::In file included from 579/usr/local/clang/include/absl/strings/str_cat.h:::  116warning: :
note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from macro 'ABSL_INTERNAL_X' defined here
/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23:
    /usr/local/clang/include/absl/strings/numbers.h160496: |  | 118b#:od56oe:lf  iwarning: sntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ae
f eA_B  sS118tL | r_ tI oN 3T 2E _R bN aA sL e_ (X a( bF su ln :c :, s  tC ra il nl ge _e v, i  eK wQ  u ta el x, t  ,M  Q iu na tl 3, 2  _KatVb*as llau:be:s,ul i_MnnVtoa1nl2nu8ue*l, l a .bv.sa.ll)_u ne o, n
 n       u| \l                                                        ^
l
       | o/usr/local/clang/include/absl/base/nullability.h        ^u:
t241):;22
:       | note:                                                        ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57/usr/local/clang/include/absl/container/internal/btree_container.h:: 546:warning: 3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
162 | bo  o546l |   s aAfBeS_Ls_tIrNtToE6R4N_AbLa_sXe((ianbsselr:t:_sotrr_iansgs_ivgine,w  itnesxetr,t _ionrt_6a4s_sti*g na_bismlp_lnIn file included from ,s2/s2closest_edge_query.cco :n&18n&:
u,In file included from l ../src/s2/s2closest_edge_query.hlc: o34vn:
asIn file included from lt../src/s2/s2closest_edge_query_base.hu :e&32,,:

 In file included from       t/usr/local/clang/include/absl/container/btree_set.h| r:                                                        ^u65
e:
,In file included from /usr/local/clang/include/absl/base/nullability.h
/usr/local/clang/include/absl/container/internal/btree.h:      :241| 70:  ^:
22
In file included from :/usr/local/clang/include/absl/container/internal/layout.h /usr/local/clang/include/absl/container/internal/btree_container.h::note: 198509expanded from macro 'absl_nonnull':
:
In file included from 52/usr/local/clang/include/absl/strings/str_cat.h:  : 241116note:  | :
expanded from macro 'ABSL_INTERNAL_X'#In file included from 
d/usr/local/clang/include/absl/strings/internal/stringify_sink.he:f23  i:
509n/usr/local/clang/include/absl/strings/numbers.h | e:  152 a: b37 s: l  _warning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] o
 n nAu  Bl152Sl | L v__oINiNodTn EnPRuuNltAlTL
w_      oA| DT                     ^iT
gRiItBsU(TuEi_nCtA3P2T_UtR EiD,_ BcYh(atIn file included from rhs2/s2closest_cell_query.cc*i: s18a:
)bIn file included from )s../src/s2/s2closest_cell_query.h,l: _32 n:
 oIn file included from  ../src/s2/s2closest_cell_query_base.hn :n 33u :
l In file included from l /usr/local/clang/include/absl/container/btree_set.h  :b 65u :
f In file included from ) /usr/local/clang/include/absl/container/internal/btree.h; :
 70       :
|  In file included from                                     ^ /usr/local/clang/include/absl/container/internal/layout.h
 : 198/usr/local/clang/include/absl/base/nullability.h :
: In file included from 241 /usr/local/clang/include/absl/strings/str_cat.h:\:22
116:      :
 | In file included from note:                                                    ^/usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'absl_nonnull'
:
23/usr/local/clang/include/absl/container/internal/common.h:
  :/usr/local/clang/include/absl/strings/numbers.h24131: | :165#9:d:39e :f note: iwarning: macro 'ABSL_INTERNAL_IF_true' defined herentype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
e
 a   b31  s | 165l# | _d ne of ni nn ue l  lA  B _S NL o_ nI nN uT lE lR 
N       A | L                      ^_ 
I F _ tarbusel(:i:fi_nsta1t2i8s*f iaebds,l _.n.o.In file included from n)s2/s2closest_edge_query.ccn :ui18lf:
l_In file included from  s../src/s2/s2closest_edge_query.hva:at34li:
usIn file included from ef../src/s2/s2closest_edge_query_base.h,i: e32id:
n
In file included from t      /usr/local/clang/include/absl/container/btree_set.h | :b        ^65a
:
sIn file included from e/usr/local/clang/include/absl/container/internal/btree.h):;70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                                      ^:
198:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/str_cat.h::241116::
22In file included from In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.hs2/s2closest_point_query.cc ::23note: 18:
expanded from macro 'absl_nonnull':
/usr/local/clang/include/absl/strings/numbers.h
In file included from :../src/s2/s2closest_point_query.h156  ::2412955 | :
:#In file included from  d../src/s2/s2closest_point_query_base.hwarning: e:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f39
i:
nIn file included from e../src/s2/s2point_index.h   :156a27 | b:
bsIn file included from ol/usr/local/clang/include/absl/container/btree_map.ho_:ln67 o:
sn/usr/local/clang/include/absl/container/internal/btree_container.han:fu546el:_l3s :t_ rNwarning: to'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]on
8n_ublal  s
546e       | (|  a                     ^ b
AsBlS:L:_sItNrTiEnRgN_AvLi_eXw( itnIn file included from ess2/s2closest_cell_query.ccxe:tr18,t:
 _In file included from io../src/s2/s2closest_cell_query.hnr:t_328a:
_sIn file included from ts../src/s2/s2closest_cell_query_base.h*i: g33an:
b,In file included from s /usr/local/clang/include/absl/container/btree_set.hli:_n65ns:
oeIn file included from nr/usr/local/clang/include/absl/container/internal/btree.hnt:u_70lo:
lrIn file included from  _/usr/local/clang/include/absl/container/internal/layout.hva:as198ls:
uiIn file included from eg/usr/local/clang/include/absl/strings/str_cat.h,n:
_116      i:
| mIn file included from                                                       ^p/usr/local/clang/include/absl/strings/internal/stringify_sink.h
l:,23/usr/local/clang/include/absl/base/nullability.h :
:&241/usr/local/clang/include/absl/strings/numbers.h&::,22166 ::c 57o:note: n expanded from macro 'absl_nonnull's
warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
241& | ,# d  te166rf | uibeno,eo
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lf_e  n_547os | nt nr ut lo lu  8 __ Nb oa ns ne u( la lb 
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v      i| e                  ~~~~~w
 te/usr/local/clang/include/absl/container/internal/btree_container.hx:t509,: 47u:In file included from i s2/s2closest_edge_query.ccn:note: t18expanded from macro 'ABSL_INTERNAL_X'8:

_In file included from t../src/s2/s2closest_edge_query.h*:   34509a:
 | bIn file included from  s../src/s2/s2closest_edge_query_base.h l: _32 n:
 oIn file included from  n/usr/local/clang/include/absl/container/btree_set.h n: u65 l:
 lIn file included from A /usr/local/clang/include/absl/container/internal/btree.hBv:Sa70Ll:
_uIn file included from Ie/usr/local/clang/include/absl/container/internal/layout.hN,:T
198E      :
R| In file included from N                                                        ^/usr/local/clang/include/absl/strings/str_cat.hA
:L116/usr/local/clang/include/absl/base/nullability.h_:
:AIn file included from 241T/usr/local/clang/include/absl/strings/internal/stringify_sink.h:T:22R23:I:
 B/usr/local/clang/include/absl/strings/numbers.hnote: U:expanded from macro 'absl_nonnull'T158
E:_57  C:241A  | Pwarning: #Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dU
eRfEiD  n_158eB |  Yba(obtoshlli _ssn)ao)fn,en _u sl tl r  t_ oN 1o 6n _n bu al sl e
 (       a|  b                     ^ s
 l : : s t r i\n
g      _| v                                              ^~~~i
ew texIn file included from t/usr/local/clang/include/absl/container/internal/btree_container.hs2/s2closest_cell_query.cc,:: 54618i::
n3In file included from t:../src/s2/s2closest_cell_query.h1 :632warning: _:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]tIn file included from 
*../src/s2/s2closest_cell_query_base.h /usr/local/clang/include/absl/container/internal/btree_container.h:a:33b511:
s:In file included from l52/usr/local/clang/include/absl/container/btree_set.h_::n 65onote: :
nexpanded from macro 'ABSL_INTERNAL_X'In file included from n
/usr/local/clang/include/absl/container/internal/btree.hu:l70  l:
511 In file included from  | v/usr/local/clang/include/absl/container/internal/layout.h a: l198 u:
 eIn file included from  ,/usr/local/clang/include/absl/strings/str_cat.h 
:       116 | :
                                                         ^In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h
A:B23/usr/local/clang/include/absl/base/nullability.h:
S:/usr/local/clang/include/absl/strings/numbers.hL241:_:168I22:N:59T :Enote:  Rexpanded from macro 'absl_nonnull'#define awarning: bsltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonnu  l168l |  b_oNooln nsualfle
_      s| t                     ^r
tou16_base(absl::string_vieIn file included from ws2/s2crossing_edge_query.cc :t18e:
xIn file included from t../src/s2/s2crossing_edge_query.h,: 31u:
iIn file included from n../src/s2/s2padded_cell.ht:1236:
_In file included from t../src/s2/s2cell_id.h*: 43a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.hv:a23l:
uIn file included from e/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from                                                           ^
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 552#:d64e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l552_ | n o n n u l l   _ N o n n u l l 
        |                       ^ 
            base_internal::PerThreadSynIn file included from cs2/s2closest_cell_query.cch:*18 :
aIn file included from b../src/s2/s2closest_cell_query.hs:l32_:
nIn file included from o../src/s2/s2closest_cell_query_base.hn:n33u:
lIn file included from l/usr/local/clang/include/absl/container/btree_set.h :w65,:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                                               ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'absl_nonnull':
23:
  /usr/local/clang/include/absl/strings/numbers.h241: | 170#:d59e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l170_ | nboononlu lsla f_eN_osntnrutlolu
3      2| _                     ^b
ase(absl::string_view text, uIn file included from is2/s2crossing_edge_query.ccn:t183:
2In file included from _../src/s2/s2crossing_edge_query.ht:*31 :
aIn file included from b../src/s2/s2padded_cell.hs:l23_:
nIn file included from o../src/s2/s2cell_id.hn:n43u:
lIn file included from l../src/s2/s1angle.h :v28a:
lIn file included from u../src/s2/s2point.he:,27
:
      In file included from | ../src/s2/s2coder.h                                                          ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n556e: 38a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n556u | l l  v_oNiodn nLuolclk
S      l| o                     ^w
Loop(SyncNhWaiAtLP_aArIn file included from Ts2/s2closest_cell_query.ccaT:mR18sI:
*BIn file included from  U../src/s2/s2closest_cell_query.haT:bE32s_:
lCIn file included from _A../src/s2/s2closest_cell_query_base.hnP:oT33nU:
nRIn file included from uE/usr/local/clang/include/absl/container/btree_set.hlD:l_65 B:
wYIn file included from a(/usr/local/clang/include/absl/container/internal/btree.hit:th70pi:
,sIn file included from  )/usr/local/clang/include/absl/container/internal/layout.hi):n)198t :
  In file included from f /usr/local/clang/include/absl/strings/str_cat.hl :a 116g :
s In file included from ) /usr/local/clang/include/absl/strings/internal/stringify_sink.h; :
 23       :
|  /usr/local/clang/include/absl/strings/numbers.h                                     ^ :
 172 :/usr/local/clang/include/absl/base/nullability.h 59: :241  : 22warning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
 note:  expanded from macro 'absl_nonnull' 
  \172  
 | 241      b | | o#                                                   ^od
leIn file included from  f/usr/local/clang/include/absl/container/internal/common.hs2/s2debug.ccsi:n:a31e18 :
f:aIn file included from e9b../src/s2/s2debug.h_:s:s tl55note: r_t:
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from n../src/s2/base/commandlineflags.hoo
:n21   un:
316uIn file included from  | 4#ld/usr/local/clang/include/absl/flags/flag.h_le :bf_i42aNsne:
(oen nIn file included from aAuB/usr/local/clang/include/absl/flags/internal/flag.hblSl:sLl
30_:I      :
:N| sT/usr/local/clang/include/absl/base/call_once.h                     ^tE:
rR52iN:n24Ag:L_ _vwarning: Iitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
_eIn file included from tws2/s2crossing_edge_query.ccr :t   u18e52e:
x | (In file included from tsi../src/s2/s2crossing_edge_query.h,tf: d_31u:s::
aianIn file included from ttt../src/s2/s2padded_cell.h6oi:4ms23_ifc:
ti<In file included from u*ie../src/s2/s2cell_id.hd n:,at43 b3:
2._sIn file included from .tl../src/s2/s1angle.h_.>:n)*28 o :
aniIn file included from fbns../src/s2/s2point.hl_u:l_sn27lao:
n tIn file included from inv../src/s2/s2coder.hsualllu :Cfe23,o
nit:
r      eIn file included from o| d/usr/local/clang/include/absl/status/status.h
l                                                          ^W:o      
67r| :
/usr/local/clang/include/absl/base/nullability.hd        ^(In file included from :

/usr/local/clang/include/absl/status/internal/status_internal.h241      :| :29                       ^22
:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.hnote: 94expanded from macro 'absl_nonnull'::
241
In file included from :In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  22s2/s2closest_point_query.cc:241::31 |  18:
#note: :
/usr/local/clang/include/absl/synchronization/mutex.hdexpanded from macro 'absl_nonnull'In file included from :e
../src/s2/s2closest_point_query.h558f  ::i2412935n | :
#:eIn file included from  d e../src/s2/s2closest_point_query_base.hfaiwarning: n:btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]se39 
l:
a_In file included from   bn../src/s2/s2point_index.ho558ns:l | n27_ u:
ln In file included from blo/usr/local/clang/include/absl/container/btree_map.hno :_nou67Nlol:
 nl/usr/local/clang/include/absl/container/internal/btree_container.h Ln:u_oN546lclko:
Sn3n      l:u| lolw                      ^
Wwarning: i
      'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t| 
                     ^h
Dea  d546l | i n eA(BIn file included from MSs2/s2debug.ccIn file included from us2/s2closest_cell_query.ccL:H18o:_:
w18IIn file included from  :
N../src/s2/s2debug.haIn file included from T:b55../src/s2/s2closest_cell_query.hEs:
:In file included from R../src/s2/base/commandlineflags.hNl32:A_:
21LnIn file included from o:
_../src/s2/s2closest_cell_query_base.hnIn file included from X:null /usr/local/clang/include/absl/flags/flag.h(33h:i:
o42nIn file included from w:
s/usr/local/clang/include/absl/container/btree_set.h,In file included from e:
/usr/local/clang/include/absl/flags/internal/flag.hr65t      ::
_| 30In file included from o                                  ^r:
/usr/local/clang/include/absl/container/internal/btree.h
_/usr/local/clang/include/absl/base/call_once.h:a/usr/local/clang/include/absl/base/nullability.hs:70:s53:
241i:In file included from :g22/usr/local/clang/include/absl/container/internal/layout.h22n:::, 198 warning:  :
inote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from nexpanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/str_cat.hs
:e   116  r53:
241t | In file included from  | _ /usr/local/clang/include/absl/strings/internal/stringify_sink.h # o :adr23be_f:
isa/usr/local/clang/include/absl/strings/numbers.hsnle:s: :a175biso:gln41cn__:ieIn file included from _fls2/s2convex_hull_query.cca:
g26:
*In file included from  ../src/s2/s2convex_hull_query.ha:b25s  :
241lIn file included from  | _../src/s2/s2cap.h#n:do30en:
fnIn file included from iu../src/s2/s1angle.hnl:el28  :
afIn file included from bl../src/s2/s2point.hsa:lg27_):
n;In file included from o
../src/s2/s2coder.hn      :n| 23u                     ^:
l
l/usr/local/clang/include/absl/status/status.h :_725N:o38n:/usr/local/clang/include/absl/base/nullability.hn :u241warning: l:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l22

:       | note:                      ^
expanded from macro 'absl_nonnull'  
725 |     s241t | a#tdiecf isntea taubss_li_nntoenrnnualll: :_SNtoantnuuslRle
In file included from p      s2/s2closest_edge_query.cc*| :                      ^18a
:
bIn file included from s../src/s2/s2closest_edge_query.hl:_34n:
oIn file included from n../src/s2/s2closest_edge_query_base.hn:u32l:
lIn file included from  /usr/local/clang/include/absl/container/btree_set.hP:r65e:
pIn file included from a/usr/local/clang/include/absl/container/internal/btree.hr:e70T:
oIn file included from M/usr/local/clang/include/absl/container/internal/layout.ho:d198i:
fIn file included from y/usr/local/clang/include/absl/strings/str_cat.h(:
116      :
| In file included from                                      ^/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23:
/usr/local/clang/include/absl/strings/numbers.h:/usr/local/clang/include/absl/base/nullability.h160::24157::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 160# | dbeofoiln es aafbes_ls_tnrotnon3u2l_lb a_sNeo(nanbuslll:
:      s| t                     ^r
ing_view text, int32_t* abslIn file included from _s2/s2debug.ccn:o18n:
nIn file included from u../src/s2/s2debug.hl:l55 :
vIn file included from a../src/s2/base/commandlineflags.hl:u21e:
,In file included from 
/usr/local/clang/include/absl/flags/flag.h      :| 42                                                        ^:

In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/base/call_once.h::2296:: 33In file included from :note: s2/s2convex_hull_query.cc expanded from macro 'absl_nonnull':
warning: 26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
  
In file included from 241../src/s2/s2convex_hull_query.h | :#25   d:
96eIn file included from  | f../src/s2/s2cap.h i: n30fe:
r In file included from ia../src/s2/s1angle.heb:ns28dl:
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:uIn file included from al../src/s2/s2coder.htl:o 23m_:
iN/usr/local/clang/include/absl/status/status.hco:<n732un:iu29nl:tl 3
warning: 2      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_| 
t                     ^>
*   732a | b s ls_tnaotnincu lclo nbsats In file included from ess2/s2closest_edge_query.cc_t:id18n::
t:In file included from es../src/s2/s2closest_edge_query.hrt:nr34ai:
lnIn file included from :g../src/s2/s2closest_edge_query_base.h:*:C 32oa:
nbIn file included from ts/usr/local/clang/include/absl/container/btree_set.hrl:o_65ln:
WoIn file included from on/usr/local/clang/include/absl/container/internal/btree.hrn:du70(l:

lIn file included from        /usr/local/clang/include/absl/container/internal/layout.h| E:                                ^m198
p:
tIn file included from /usr/local/clang/include/absl/base/nullability.hy/usr/local/clang/include/absl/strings/str_cat.h:S:241t116:r:
22iIn file included from :n/usr/local/clang/include/absl/strings/internal/stringify_sink.h g:note: (23expanded from macro 'absl_nonnull'):

;/usr/local/clang/include/absl/strings/numbers.h
  :      241162|  | :                            ^#57
d:e /usr/local/clang/include/absl/base/nullability.hf:warning: i241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
e22 :a   b162note: s | expanded from macro 'absl_nonnull'lb
_ono  ol241n  | ns#uadlfelef _i_snNteor ntanobu6sl4ll__
bn      ao| sn                     ^en
(ualbls l_:N:oIn file included from sns2/s2debug.cctn:ru18il:
nlIn file included from g
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e
In file included from w../src/s2/base/commandlineflags.h :t21e:
xIn file included from t/usr/local/clang/include/absl/flags/flag.h,: 42i:
nIn file included from t/usr/local/clang/include/absl/flags/internal/flag.h6:430_:
t/usr/local/clang/include/absl/base/call_once.h*: 97a:In file included from b18s2/s2convex_hull_query.ccs::l 26_:
warning: nIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o../src/s2/s2convex_hull_query.h
n:n25   u:
97lIn file included from  | l../src/s2/s2cap.h  : v30 a:
 lIn file included from  u../src/s2/s1angle.h e:o,28n
:
c      In file included from e| ../src/s2/s2point.h_                                                        ^:f
27l:
a/usr/local/clang/include/absl/base/nullability.hIn file included from g:../src/s2/s2coder.h*241: :23a22:
b:/usr/local/clang/include/absl/status/status.hs :l733note: _:expanded from macro 'absl_nonnull'n29
o:n   n241warning: u | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l#
ld ef  fl733ia | ng e)  ;sa
tb      as| tl                 ^i_
cn o/usr/local/clang/include/absl/base/nullability.hcn:on241nu:sl22tl:   s_note: tNexpanded from macro 'absl_nonnull'do
:n:n  su241tl | rl#i
dn      eg| f*                     ^i 
naeb salb_snlo_nnnounlnlu lMlo v_eNdoFnrnoumlIn file included from Sls2/s2closest_edge_query.cct
:r      18i| :
n                     ^In file included from g
../src/s2/s2closest_edge_query.h(:)34;:

In file included from       ../src/s2/s2closest_edge_query_base.h| :                            ^32
:
In file included from /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/base/nullability.h::65241:
:In file included from 22/usr/local/clang/include/absl/container/internal/btree.h:: 70:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/layout.h
:198:
  In file included from 241/usr/local/clang/include/absl/strings/str_cat.h | :#116d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/stringify_sink.hi:n23e:
 /usr/local/clang/include/absl/strings/numbers.ha:b165s:l39_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   165_ | N o n n u l l 
        |                       ^ 
             absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2convex_hull_query.cc
:26  :
241In file included from  | ../src/s2/s2convex_hull_query.h#:d25e:
fIn file included from i../src/s2/s2cap.hn:e30 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
o/usr/local/clang/include/absl/status/status.hn:n751u:l61l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  751 |   static uintptr_In file included from ts2/s2closest_edge_query.cc :P18o:
iIn file included from n../src/s2/s2closest_edge_query.ht:e34r:
TIn file included from o../src/s2/s2closest_edge_query_base.hR:e32p:
(In file included from s/usr/local/clang/include/absl/container/btree_set.ht:a65t:
uIn file included from s/usr/local/clang/include/absl/container/internal/btree.h_:i70n:
tIn file included from In file included from e/usr/local/clang/include/absl/container/internal/layout.hs2/s2debug.ccr::n19818a:
:
lIn file included from In file included from :/usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2debug.h:::S11655t:
:
aIn file included from In file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/base/commandlineflags.hu::s2321R:
:
e/usr/local/clang/include/absl/strings/numbers.hIn file included from p:/usr/local/clang/include/absl/flags/flag.h*166: :42a57:
b:In file included from s /usr/local/clang/include/absl/flags/internal/flag.hl:warning: _30type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:

o/usr/local/clang/include/absl/base/call_once.hn:n111  u:166l40 | l:b  orwarning: o)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l;
 
s      a|   f                                                            ^111e
 | _vs/usr/local/clang/include/absl/base/nullability.hot:ir241dt: o22Lu:o8 w_note: Lbexpanded from macro 'absl_nonnull'ea
vsee  l(241Ca | ab#lsdlleO:fn:icsneter( iaanbbgss_llv:_i:neoownn cnteue_lxfltl ,a_ gNu*oi nnantbu8sl_llt_
*n       o| an                     ^bn
sull_ln ofnlnaugl,l  CvaallluaebIn file included from ,ls2/s2convex_hull_query.cc
e:      &26| &:
                                                        ^ In file included from 
f../src/s2/s2convex_hull_query.hn:,25
:
      In file included from /usr/local/clang/include/absl/base/nullability.h| ../src/s2/s2cap.h:                                       ^:241
30::
22In file included from /usr/local/clang/include/absl/base/nullability.h:../src/s2/s1angle.h: :24128note: ::
expanded from macro 'absl_nonnull'22In file included from 
:../src/s2/s2point.h :  27note: 241:
expanded from macro 'absl_nonnull' | In file included from 
#../src/s2/s2coder.hd:  e23241f:
 | i/usr/local/clang/include/absl/status/status.h#n:de752e :fa44ib:ns elwarning:  _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]an
bosnln  _u752nl | ol n  n_suNtloalnt ni_ucNl olcn
on      nu| sl                     ^tl
 
s      t| a                     ^t
us_internal::StaIn file included from ts2/s2closest_edge_query.ccu:s18R:
eIn file included from p../src/s2/s2closest_edge_query.h*: 34a:
bIn file included from s../src/s2/s2closest_edge_query_base.hl:_32n:
oIn file included from n/usr/local/clang/include/absl/container/btree_set.hn:u65l:
lIn file included from  /usr/local/clang/include/absl/container/internal/btree.hR:e70p:
TIn file included from o/usr/local/clang/include/absl/container/internal/layout.hP:o198i:
nIn file included from t/usr/local/clang/include/absl/strings/str_cat.he:r116(:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                                           ^23
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/base/nullability.h::168241::5922::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 168# | dbeofoiln es aafbes_ls_tnrotnonuu1l6l_ b_aNsoen(naublsll
:      :| s                     ^t
ring_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::sntrinogn_nvuill _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:e18w:
 In file included from t../src/s2/s2crossing_edge_query.he:x31t:
,In file included from  ../src/s2/s2padded_cell.hu:23i:
nIn file included from t../src/s2/s2cell_id.h3:243_:
tIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from v/usr/local/clang/include/absl/status/status.ha:l67u:
eIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                                                          ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22:/usr/local/clang/include/absl/synchronization/mutex.h :576note: :expanded from macro 'absl_nonnull'49
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #d  e576 | f i nveo iadb sTlr_ynRoenmnouvlel( b_aNsoen_niunltle
r      n| a                     ^l
::PerThreadSynch* absl_nonnull s);
      | In file included from                                                 ^s2/s2closest_edge_query.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_edge_query.h241::3422:
:In file included from  ../src/s2/s2closest_edge_query_base.h:note: 32expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/btree_set.h:  65241:
 | In file included from #/usr/local/clang/include/absl/container/internal/btree.hd:e70f:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.he: 198a:
bIn file included from s/usr/local/clang/include/absl/strings/str_cat.hl:_116n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:u23l:
l/usr/local/clang/include/absl/strings/numbers.h :_172N:o59n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  172 | bool safe_strtouIn file included from 6s2/s2crossing_edge_query.cc4:_18b:
aIn file included from s../src/s2/s2crossing_edge_query.he:(31a:
bIn file included from s../src/s2/s2padded_cell.hl::23::
sIn file included from t../src/s2/s2cell_id.hr:i43n:
gIn file included from _../src/s2/s1angle.hv:i28e:
wIn file included from  ../src/s2/s2point.ht:e27x:
tIn file included from ,../src/s2/s2coder.h :u23i:
nIn file included from t/usr/local/clang/include/absl/status/status.h6:467_:
tIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hv:a578l:u45e:, 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                                          ^
  /usr/local/clang/include/absl/base/nullability.h578: | 241 : 22v:o inote: dexpanded from macro 'absl_nonnull' 
Bl  o241c | k#(dbeafsien_ei natbesrln_anlo:n:nPuelrlT h_rNeoandnSuylnlc
h      *|                       ^a
bsl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2closest_edge_query.cc | :#18d:
eIn file included from f../src/s2/s2closest_edge_query.hi:n34e:
 In file included from a../src/s2/s2closest_edge_query_base.hb:s32l:
_In file included from n/usr/local/clang/include/absl/container/btree_set.ho:n65n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 70_:
NIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:n198u:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.h
:      116| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |  In file included from  s2/s2crossing_edge_query.cc : 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
aIn file included from b../src/s2/s2point.hs:l27::
:In file included from u../src/s2/s2coder.hi:n23t:
1In file included from 2/usr/local/clang/include/absl/status/status.h8:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :v31a:
l/usr/local/clang/include/absl/synchronization/mutex.hu:e580,: 34i:n twarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
ase  )580; | 
        | b                                        ^a
se/usr/local/clang/include/absl/base/nullability.h_:i241n:t22e:r nnote: aexpanded from macro 'absl_nonnull'l
::  P241e | r#TdherfeiandeS yanbcshl*_ naobnsnlu_lnlu l_lNaobnlneu lWla
k      e| u                     ^p
(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NIn file included from us2/s2closest_edge_query.ccl:l18a:
bIn file included from l../src/s2/s2closest_edge_query.he:
34      :
| In file included from                       ^../src/s2/s2closest_edge_query_base.h
:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.hs2/s2crossing_edge_query.cc::70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
 In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from warning: /usr/local/clang/include/absl/strings/internal/stringify_sink.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
/usr/local/clang/include/absl/strings/numbers.h:182:7:   175 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       182  |  c h a r *   a b s l _ n o n n u lalb sRlo:u:nudiTnrti1p2D8o*u balbesTlo_Bnuofnfneurl(ld ovuabllueem ,d ,i pnclth, a br&a*&s ,ea )bc;so
ln      _s| nt                                        ^o 
n&n,u /usr/local/clang/include/absl/base/nullability.hlt:lr241 u:be22u,:f
 f      note: e| expanded from macro 'absl_nonnull'r  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)

;
        | 241      ^   | 
547# | d /usr/local/clang/include/absl/base/nullability.he :f 241i :n 22e :   a note: b expanded from macro 'absl_nonnull's 
l _   n241 o |  n# nd ue lf lit nr_euN eoa)nb;ns
ul      l_| l                  ~~~~~n

o      n| n                     ^u
l/usr/local/clang/include/absl/container/internal/btree_container.hl: 511_:N47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l
      |                      ^
  511 |       In file included from  s2/s2closest_edge_query.cc : 18 :
AIn file included from B../src/s2/s2closest_edge_query.hS:L34_:
IIn file included from N../src/s2/s2closest_edge_query_base.hT:E32R:
NIn file included from A/usr/local/clang/include/absl/container/btree_set.hL:_65A:
TIn file included from T/usr/local/clang/include/absl/container/internal/btree.hR:I70B:
UIn file included from T/usr/local/clang/include/absl/container/internal/layout.hE:_198CIn file included from :
As2/s2closest_cell_query.ccPIn file included from :T/usr/local/clang/include/absl/strings/str_cat.h18U::
R116In file included from E:
../src/s2/s2closest_cell_query.hDIn file included from :_/usr/local/clang/include/absl/strings/internal/stringify_sink.h32B::
Y23In file included from (:
../src/s2/s2closest_cell_query_base.ht/usr/local/clang/include/absl/strings/numbers.h:h:33i182:
s:In file included from )60/usr/local/clang/include/absl/container/btree_set.h)::) 65 :
warning:  In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] /usr/local/clang/include/absl/container/internal/btree.h
 : 70 :
   In file included from 182 /usr/local/clang/include/absl/container/internal/layout.h |  :c 198h :
a In file included from r /usr/local/clang/include/absl/strings/str_cat.h* :  116a :
b In file included from s l _ /usr/local/clang/include/absl/strings/internal/stringify_sink.hn :o 23n :
n /usr/local/clang/include/absl/strings/numbers.hu\:l
182l      : | 7R                                              ^~~~:o
 uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
Trip  D182o | ucbhlaerT*o Baubfsfle_rn(odnonuubllle  Rdo,u ncdhTarri*p Daobusbll_enToonBnuuflfle rb(udfofuebrl)e; 
d      ,|                                                             ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld ebfuifnfee ra)b;s
l      _| n      ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnullIn file included from  s2/s2closest_edge_query.cc_:N18o:
nIn file included from n../src/s2/s2closest_edge_query.hu:l34l:

In file included from       ../src/s2/s2closest_edge_query_base.h| :                     ^32
:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h550In file included from ::s2/s2closest_cell_query.cc19824::
:18In file included from  :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from warning: :../src/s2/s2closest_cell_query.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]116:
:
32In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.h  In file included from :550../src/s2/s2closest_cell_query_base.h23 | ::
 33/usr/local/clang/include/absl/strings/numbers.h :
 :In file included from  183/usr/local/clang/include/absl/container/btree_set.h :: 765 ::
  In file included from  warning:  /usr/local/clang/include/absl/container/internal/btree.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
 70 :
 In file included from    /usr/local/clang/include/absl/container/internal/layout.h183 : |  198c :
hfIn file included from aa/usr/local/clang/include/absl/strings/str_cat.hrl:*s116 e:
a)In file included from b;/usr/local/clang/include/absl/strings/internal/stringify_sink.hs
:l      23_| :
n                       ^/usr/local/clang/include/absl/strings/numbers.ho
n:n182u/usr/local/clang/include/absl/container/internal/btree_container.h:l:60l496: : R9warning: o:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u 
nnote: dmacro 'ABSL_INTERNAL_X' defined hereT
  r182i |   pc496Fh | la#orda*et fTaiobnBseul f_AfnBeoSrnL(n_fuIllNolTa EtRR oNfuA,nL d_cTXhr(aiFrpu*Dn ocau,bb slClea_TlnoloBenuenf,uf leKlrQ (ubdauolfu,fb elMreQ) u;da
,l       ,| c       ^hK
aVra/usr/local/clang/include/absl/base/nullability.h*l: u241ae:b,22s :lM _Vnote: naexpanded from macro 'absl_nonnull'ol
nun  eu241,l |  l#. d.be.uf)fi fn ee r  )a ;b\
s
      l      | _|                                                            ^n        ^
o
n/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine abIn file included from ss2/s2closest_edge_query.ccl:_18n:
oIn file included from n../src/s2/s2closest_edge_query.hn:u34l:
lIn file included from  ../src/s2/s2closest_edge_query_base.h_:N32o:
nIn file included from n/usr/local/clang/include/absl/container/btree_set.hu:l65l:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                     ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2closest_cell_query.cc:18:
In file included from   ../src/s2/s2closest_cell_query.h183: | 32c:
hIn file included from a../src/s2/s2closest_cell_query_base.hr:*33 :
aIn file included from b/usr/local/clang/include/absl/container/btree_set.hs:l65_:
nIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n70u:
lIn file included from l/usr/local/clang/include/absl/container/internal/layout.h :R198o:
uIn file included from n/usr/local/clang/include/absl/strings/str_cat.hd:T116r:
iIn file included from p/usr/local/clang/include/absl/strings/internal/stringify_sink.hF:l23o:
a/usr/local/clang/include/absl/strings/numbers.ht:T183o:B7u:f fwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
(flo  a183t |  cfh,a rc*h aarb*s la_bnsoln_nnuolnln uRlolu nbdu/usr/local/clang/include/absl/container/internal/btree_container.hTf:fr549ei:rp3F):l; o
warning: a      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t| 
T                                                         ^o
B  u/usr/local/clang/include/absl/base/nullability.h549f: | f241 e: r22A(:Bf Slnote: Loexpanded from macro 'absl_nonnull'_a
ItN   Tf241E, | R #NcdAheLaf_riX*n( eia nbassbelsr_ltn__ononornn_unaluslls lib gu_nfN,fo enirnn)us;le
lr
      t      _| | o      ^                     ^r

_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:_ inote: mexpanded from macro 'absl_nonnull'p
l,   241& | &#,d eIn file included from &fs2/s2closest_edge_query.cc&i:,n18 e:
f In file included from aa../src/s2/s2closest_edge_query.hlb:ss34el:
,_In file included from 
n../src/s2/s2closest_edge_query_base.h      o:| n32  ^n:

uIn file included from l/usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/container/internal/btree_container.hl:: 65509_:
:NIn file included from 52o/usr/local/clang/include/absl/container/internal/btree.hn::n 70u:
note: lIn file included from expanded from macro 'ABSL_INTERNAL_X'l/usr/local/clang/include/absl/container/internal/layout.h

:      198| :
                       ^In file included from 509
/usr/local/clang/include/absl/strings/str_cat.h | : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from  :s2/s2closest_cell_query.cc 23 ::
 18/usr/local/clang/include/absl/strings/numbers.h :
: In file included from 191A../src/s2/s2closest_cell_query.h:B:42S32:L:
 _In file included from warning: I../src/s2/s2closest_cell_query_base.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:
T33E:
RIn file included from   N/usr/local/clang/include/absl/container/btree_set.h191A: | L65s_i:
AzIn file included from eT/usr/local/clang/include/absl/container/internal/btree.h_T:tR70 I:
SBIn file included from iU/usr/local/clang/include/absl/container/internal/layout.hxT:DE198i_:
gCIn file included from iA/usr/local/clang/include/absl/strings/str_cat.htP:sT116TU:
oRIn file included from BE/usr/local/clang/include/absl/strings/internal/stringify_sink.huD:f_23fB:
eY/usr/local/clang/include/absl/strings/numbers.hr(:(t183dh:oi58us:b) l)warning: e,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
d ,     c 183h  | a cr h* a  ra *b  s al b_ sn lo _n nn ou nl nl u  lb lu\ f
Rf      oe| ur                                                   ^n)
d;T
r      /usr/local/clang/include/absl/container/internal/common.hi| :p                                         ^32F
:l9/usr/local/clang/include/absl/base/nullability.ho::a 241t:note: T22macro 'ABSL_INTERNAL_IF_false' defined hereo:
B unote:    fexpanded from macro 'absl_nonnull'32f
 | e#r  d(241ef | fl#iodnaeetf  iAfnB,eS  Lca_hbIasNrlT*_E nRaoNbnAsnLlu__lInlFo _n_fnNauollnslne u(bliulff
_f      se| ar                     ^t)
i;s
f      i| e                                                         ^d
, /usr/local/clang/include/absl/base/nullability.h.:.241.:)22 :_ _note: Vexpanded from macro 'absl_nonnull'A
_In file included from A  s2/s2closest_edge_query.ccR241:G | 18S#:
_dIn file included from _e../src/s2/s2closest_edge_query.h
f:      i34| n:
        ^eIn file included from 
 ../src/s2/s2closest_edge_query_base.ha:b32s:
lIn file included from _/usr/local/clang/include/absl/container/btree_set.hn:o65n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hIn file included from l:s2/s2closest_point_query.ccl70: :
18_In file included from :
N/usr/local/clang/include/absl/container/internal/layout.hIn file included from o:../src/s2/s2closest_point_query.hn198:n:
29uIn file included from :
ll/usr/local/clang/include/absl/strings/str_cat.h
:      116| :
                     ^In file included from 
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2closest_point_query_base.h::2339:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2point_index.h::19827::
7In file included from :/usr/local/clang/include/absl/container/btree_map.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:549:3:   198In file included from  | warning: s2/s2closest_cell_query.cccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]h:
a18r:
*In file included from  ../src/s2/s2closest_cell_query.ha:b32  s:
549lIn file included from  | _../src/s2/s2closest_cell_query_base.h n: o33An:
BnIn file included from Su/usr/local/clang/include/absl/container/btree_set.hLl:_l65I :
NFIn file included from Ta/usr/local/clang/include/absl/container/internal/btree.hEs:Rt70NI:
AnIn file included from Lt/usr/local/clang/include/absl/container/internal/layout.h_T:Xo198(B:
iuIn file included from nf/usr/local/clang/include/absl/strings/str_cat.hsf:ee116rr:
t(In file included from _i/usr/local/clang/include/absl/strings/internal/stringify_sink.hon:rt23_3:
a2/usr/local/clang/include/absl/strings/numbers.hs_:st191i :gi42n,:,   cwarning: ihtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]na
sre*r   ta191_b | ossrli__zaneso_sntin guSnli_lxi Dmbipuglfi,ft es&rT&)o,
B       u&| f&      ^f,
e rf/usr/local/clang/include/absl/base/nullability.h(a:dl241os:ue22b,:l
 e      note:  | expanded from macro 'absl_nonnull'd  ^
,
   c241/usr/local/clang/include/absl/container/internal/btree_container.hh | :a#511rd:*e52 f:ai bnnote: seexpanded from macro 'ABSL_INTERNAL_X'l 
_anbo  sn511ln | _u nl ol n  nb uu lf lf  e _r N)Ao;Bn
Sn      Lu| _l                                         ^Il
N
T      /usr/local/clang/include/absl/base/nullability.hE| :R                     ^241N
:A22L:_ Anote: Texpanded from macro 'absl_nonnull'T
RI  In file included from B241s2/s2closest_edge_query.ccU | :T#18Ed:
_eIn file included from Cf../src/s2/s2closest_edge_query.hAi:Pn34Te:
U In file included from Ra../src/s2/s2closest_edge_query_base.hEb:Ds32_l:
B_In file included from Yn/usr/local/clang/include/absl/container/btree_set.h(o:tn65hn:
iuIn file included from sl/usr/local/clang/include/absl/container/internal/btree.h)l:) 70)_:
 NIn file included from  o/usr/local/clang/include/absl/container/internal/layout.h n: n198 u:
 lIn file included from  l/usr/local/clang/include/absl/strings/str_cat.h 
:       116 | :
                      ^
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2closest_cell_query.cc198: | 18c:
hIn file included from a../src/s2/s2closest_cell_query.hr:*32 :
aIn file included from b../src/s2/s2closest_cell_query_base.hs:l33_:
nIn file included from o/usr/local/clang/include/absl/container/btree_set.hn:n65u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :F70a:
sIn file included from t/usr/local/clang/include/absl/container/internal/layout.hI:n198t:
TIn file included from o/usr/local/clang/include/absl/strings/str_cat.hB:u116f:
fIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:(23i:
n/usr/local/clang/include/absl/strings/numbers.ht:31982:_7t:  iwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
char  *198  | acbhsalr_*n oanbnsull_ln obnunfuflelr )F
a      s| t                                                    ^I
ntT/usr/local/clang/include/absl/base/nullability.ho:B241u:f22f:e rnote: (expanded from macro 'absl_nonnull'i
nt  32412 | _#td eif,i nceh aarb*s la_bnsoln_nnuolnln u_lNlo nbnuuflfle
r      )| 
                     ^      
|       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:In file included from 18s2/s2closest_edge_query.cc:
:In file included from 18../src/s2/s2closest_cell_query.h:
:In file included from 32../src/s2/s2closest_edge_query.h:
:In file included from 34../src/s2/s2closest_cell_query_base.h:
:In file included from 33../src/s2/s2closest_edge_query_base.h:
:In file included from 32/usr/local/clang/include/absl/container/btree_set.h:
:In file included from 65/usr/local/clang/include/absl/container/btree_set.h:
:In file included from 65/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:23/usr/local/clang/include/absl/strings/numbers.h:
:198/usr/local/clang/include/absl/strings/numbers.h::53199:: 5:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
'diagnose_if' is a clang extension [-Wgcc-compat]
  198   | 199c | h a r *  AaBbSsLl__InNoTnEnRuNlAlL _FNaEsEtDI_nMtITNo_BSuIfZfEe(rb(uifnfte3r2,_ tk Fia,s tcThoaBru*f faebrsSli_zneo)n;n
u      l| l    ^ 
buf/usr/local/clang/include/absl/base/macros.hf:e251r:)18
:       | note:                                                     ^expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'

/usr/local/clang/include/absl/base/nullability.h:  241251: | 22 :  _note: _expanded from macro 'absl_nonnull'a
tt  r241i | b#udteef_i_n(e( daibasgln_onsoen_niufl(l_ __bNuoinlntuilnl_
o      b| j                     ^e
ct_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from In file included from s2/s2closest_cell_query.cc/usr/local/clang/include/absl/container/btree_set.h::1865:
:
In file included from In file included from ../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/container/internal/btree.h::3270:
:
In file included from In file included from ../src/s2/s2closest_cell_query_base.h/usr/local/clang/include/absl/container/internal/layout.h::33198:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/strings/str_cat.h::65116:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::7023:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/container/internal/layout.h::200198::
7In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
  /usr/local/clang/include/absl/strings/numbers.h200: | 199c:h5a:r *warning:  'diagnose_if' is a clang extension [-Wgcc-compat]a
bsl  _199n | o n n u lAlB SFLa_sItNITnEtRTNoABLu_fNfEeErD(_uMiInNt_3S2I_ZtE (nb,u fcfhearr,*  kaFbasslt_TnooBnunfuflelr Soiuzte_)s;t
r      )| 
    ^      
|       ^
/usr/local/clang/include/absl/base/macros.h:251/usr/local/clang/include/absl/base/nullability.h::18241:: 22:note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'note: 
expanded from macro 'absl_nonnull'
    251241 |  |  # d_e_faitnter iabbustle__n_o(n(nduilalg n_oNsoen_niufl(l_
_      b| u                     ^i
ltin_objecIn file included from ts2/s2closest_edge_query.cc_:s18i:
zIn file included from e../src/s2/s2closest_edge_query.h(:O34b:
jIn file included from ,../src/s2/s2closest_edge_query_base.h :032):
 In file included from </usr/local/clang/include/absl/container/btree_set.h :N65,:
 In file included from \/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
                 ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54In file included from :s2/s2closest_cell_query.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_cell_query.h:32:
In file included from   ../src/s2/s2closest_cell_query_base.h200: | 33c:
hIn file included from a/usr/local/clang/include/absl/container/btree_set.hr:*65 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l70_:
nIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:n198u:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.h :F116a:
sIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.hI:n23t:
T/usr/local/clang/include/absl/strings/numbers.ho:B200u:f7f:e rwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
int  32002 | _cth anr,*  cahbasrl*_ naobnsnlu_lnlo nFnausltlI notuTto_Bsutfrf)e
r      (| u                                                     ^i
nt/usr/local/clang/include/absl/base/nullability.h3:2241_:t22 :n ,note:  expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_ noountn_usltlr )_
N      o| n      ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34In file included from :
s2/s2closest_cell_query.ccIn file included from :../src/s2/s2closest_edge_query_base.h18::
32In file included from :
../src/s2/s2closest_cell_query.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h32::
65In file included from :
../src/s2/s2closest_cell_query_base.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h33::
70In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h65::
198In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h70::
116In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h198::
23In file included from :
/usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/strings/numbers.h116::
201In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h5::23 :
warning: /usr/local/clang/include/absl/strings/numbers.h'diagnose_if' is a clang extension [-Wgcc-compat]:
200:54:   201warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     A200B | ScLh_aIrN*T EaRbNsAlL__nNoEnEnDu_lMlI NF_aSsItZIEn(toTuotB_usftfre,r (kuFianstt3T2o_Btu fnf,e rcShiazre*) ;a
b      s| l    ^_
no/usr/local/clang/include/absl/base/macros.hn:n251u:l18l:  onote: uexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE't
_st  r251) | 
        | _                                                     ^_
at/usr/local/clang/include/absl/base/nullability.ht:r241i:b22u:t enote: _expanded from macro 'absl_nonnull'_
((  d241i | a#gdneofsien_ei fa(b_s_lb_uniolntniunl_lo b_jNeocntn_uslilz
e      (| O                     ^b
j, 0) < N, \
      |                  ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:In file included from 198s2/s2closest_cell_query.cc:
:In file included from 18/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/s2closest_cell_query.h:
:In file included from 32/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/s2closest_cell_query_base.h:
:33/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 202/usr/local/clang/include/absl/container/btree_set.h::765::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:  198202:
 | In file included from c/usr/local/clang/include/absl/strings/str_cat.hh:a116r:
*In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n201o:n5n:u lwarning: l'diagnose_if' is a clang extension [-Wgcc-compat] 
Fas  t201I | n t T o BAuBfSfLe_rI(NiTnEtR6N4A_Lt_ NiE,E Dc_hMaIrN*_ SaIbZsEl(_onuotn_nsultlr ,b ukfFfaesrt)T
o      B| u      ^f
fe/usr/local/clang/include/absl/base/nullability.hr:S241i:z22e:) ;note: 
expanded from macro 'absl_nonnull'      
|     ^  
241 | #/usr/local/clang/include/absl/base/macros.hd:e251f:i18n:e  note: aexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'b
sl_  n251o | n n u_l_la t_tNroinbnuutlel_
_      (| (                     ^d
iagnose_ifIn file included from (s2/s2closest_edge_query.cc_:_18b:
uIn file included from i../src/s2/s2closest_edge_query.hl:t34i:
nIn file included from _../src/s2/s2closest_edge_query_base.ho:b32j:
eIn file included from c/usr/local/clang/include/absl/container/btree_set.ht:_65s:
iIn file included from z/usr/local/clang/include/absl/container/internal/btree.he:(70O:
bIn file included from j/usr/local/clang/include/absl/container/internal/layout.h,: 1980:
)In file included from  /usr/local/clang/include/absl/strings/str_cat.h<: 116N:
,In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h\:
23      :
| /usr/local/clang/include/absl/strings/numbers.h                 ^:
202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | cIn file included from hs2/s2closest_cell_query.cca:r18*:
 In file included from a../src/s2/s2closest_cell_query.hb:s32l:
_In file included from n../src/s2/s2closest_cell_query_base.ho:n33n:
uIn file included from l/usr/local/clang/include/absl/container/btree_set.hl: 65F:
aIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht :I70n:
tIn file included from  T/usr/local/clang/include/absl/container/internal/layout.h o: B198 u:
 fIn file included from  f/usr/local/clang/include/absl/strings/str_cat.h e: r116 (:
 iIn file included from  n/usr/local/clang/include/absl/strings/internal/stringify_sink.h t:\623
4:
      _/usr/local/clang/include/absl/strings/numbers.h| t:                                                   ^ 202
i:,7 :c/usr/local/clang/include/absl/container/internal/common.h h:warning: a32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r:
*9 :a   b202note: s | macro 'ABSL_INTERNAL_IF_false' defined herelc
_hnaor   n*32n  | ua#lbdlse lfb_iunnfoefn enAruB)lS
lL       _| FI                                                    ^a
st18/usr/local/clang/include/absl/base/nullability.hI:241::
22In file included from In file included from :../src/s2/s2crossing_edge_query.hs2/s2debug.cc ::31note: 18:
expanded from macro 'absl_nonnull':
In file included from 
In file included from ../src/s2/s2padded_cell.h../src/s2/s2debug.h:  :2324155:
 | :
In file included from #In file included from ../src/s2/s2cell_id.hd../src/s2/base/commandlineflags.h:e:43f21:
i:
In file included from nIn file included from ../src/s2/s1angle.he/usr/local/clang/include/absl/flags/flag.h: :28a42:
b:
In file included from sIn file included from ../src/s2/s2point.hl/usr/local/clang/include/absl/flags/internal/flag.h:_:27n30:
o:
In file included from n../src/s2/s2coder.hn/usr/local/clang/include/absl/base/call_once.h:u:23l153:
l:In file included from  41/usr/local/clang/include/absl/status/status.h_::N 67o:
warning: nIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n/usr/local/clang/include/absl/status/internal/status_internal.h
u:l29l:

In file included from         /usr/local/clang/include/absl/strings/cord.h153| : |                      ^94 
:
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :C31a:
l/usr/local/clang/include/absl/synchronization/mutex.hl:O581n:c38e:I mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
(std:  :581a | t o m i c < ubianste3_2i_ntt>eIn file included from *rs2/s2closest_edge_query.cc n:aa18bl:
s:In file included from l:../src/s2/s2closest_edge_query.h_P:ne34or:
nTIn file included from nh../src/s2/s2closest_edge_query_base.hur:le32la:
 dIn file included from cSo/usr/local/clang/include/absl/container/btree_set.hyn:nt65cr:
hoIn file included from *l/usr/local/clang/include/absl/container/internal/btree.h ,:a
70b      :
s| In file included from l                                        ^/usr/local/clang/include/absl/container/internal/layout.h_
:n198o:
nIn file included from n/usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/base/nullability.hu::l116241l:
: In file included from w22/usr/local/clang/include/absl/strings/internal/stringify_sink.h)::; 23
:
note:       /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull'| :
                                     ^203
:5  :241  | /usr/local/clang/include/absl/base/nullability.h#warning: d:'diagnose_if' is a clang extension [-Wgcc-compat]e241
f:i22n:  e 203  | note: a expanded from macro 'absl_nonnull'b 
s l   _A241nB | oS#nLdn_euIflNilTn Ee_R NNaoAbnLsn_luN_lEnlEo
Dn      _n| Mu                     ^Il
Nl_ S_INZoEn(nbuulflf
e      r| ,                     ^ 
kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnoIn file included from ss2/s2crossing_edge_query.cce:_18i:
fIn file included from (../src/s2/s2crossing_edge_query.h_:_31b:
uIn file included from i../src/s2/s2padded_cell.hl:t23i:
nIn file included from _../src/s2/s2cell_id.ho:b43j:
eIn file included from c../src/s2/s1angle.ht:_28s:
iIn file included from z../src/s2/s2point.he:(27O:
bIn file included from j../src/s2/s2coder.h,: 230:
)In file included from  /usr/local/clang/include/absl/status/status.h<: 67N:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h\:
29      :
| In file included from                  ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2closest_edge_query.cc
:18:
In file included from ../src/s2/s2closest_edge_query.h:  34585:
 | In file included from  ../src/s2/s2closest_edge_query_base.h :v32o:
iIn file included from d/usr/local/clang/include/absl/container/btree_set.h :T65r:
aIn file included from n/usr/local/clang/include/absl/container/internal/btree.hs:(70M:
uIn file included from H/usr/local/clang/include/absl/container/internal/layout.ho:w198 :
aIn file included from b/usr/local/clang/include/absl/strings/str_cat.hs:l116_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl: 204h:o7w:) ;warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
//   u204s | ecdh afro*r  aCbosnld_Vnaorn-n>uMlult eFxa sttrIanntsTfoeBru
f      f| e                   ^r
(u/usr/local/clang/include/absl/base/nullability.hi:n241t:6224:_ tnote:  expanded from macro 'absl_nonnull'i
,   c241h | a#rd*e faibnsel _anbosnln_unloln nbuulflf e_rN)o
n      n| u      ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2crossing_edge_query.ccl:l18 :
_In file included from N../src/s2/s2crossing_edge_query.ho:n31n:
uIn file included from l../src/s2/s2padded_cell.hl:
23      :
| In file included from                      ^../src/s2/s2cell_id.h
:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2closest_edge_query.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2closest_edge_query.h::6734:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2closest_edge_query_base.h::2932:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/btree_set.h::9465:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/container/internal/btree.h::3170:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/layout.h::586198::
43In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
  /usr/local/clang/include/absl/strings/numbers.h586: | 204 : 54v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Fer  (204b | acshea_ri*n taebrsnla_ln:o:nPneurlTlh rFeaasdtSIynntcTho*B uafbfselr_(nuoinnntu6l4l_
t       | i                                          ^,
 c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf iIn file included from bns2/s2debug.ccue: f18af:
ebIn file included from rs../src/s2/s2debug.hl):_
55n      :
o| In file included from n                                                     ^../src/s2/base/commandlineflags.hn
:u21/usr/local/clang/include/absl/base/nullability.hl:
:lIn file included from 241 /usr/local/clang/include/absl/flags/flag.h:_:22N42:o:
 nIn file included from note: n/usr/local/clang/include/absl/flags/internal/flag.huexpanded from macro 'absl_nonnull'l:
l30
:
        241/usr/local/clang/include/absl/base/call_once.h|  | :                     ^#194
d:e31f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _194n | oinnnluIn file included from ils2/s2crossing_edge_query.ccnl:e 18 _:
sNIn file included from to../src/s2/s2crossing_edge_query.hdn::n31:u:
alIn file included from tl../src/s2/s2padded_cell.ho
:m      23i| :
c                     ^In file included from <
../src/s2/s2cell_id.hu:i43n:
tIn file included from 3../src/s2/s1angle.h2:_28t:
>In file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from C/usr/local/clang/include/absl/status/internal/status_internal.ho:n29t:
rIn file included from o/usr/local/clang/include/absl/strings/cord.hl:W94o:
rIn file included from In file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2closest_edge_query.cc(::
18      :
| In file included from                               ^../src/s2/s2closest_edge_query.h
:3134:
:
/usr/local/clang/include/absl/base/nullability.hIn file included from /usr/local/clang/include/absl/synchronization/mutex.h:../src/s2/s2closest_edge_query_base.h:241:590:32:22:
40:In file included from : /usr/local/clang/include/absl/container/btree_set.h :note: 65warning: expanded from macro 'absl_nonnull':
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from 
/usr/local/clang/include/absl/container/internal/btree.h  :24170 | :
  #In file included from 590d/usr/local/clang/include/absl/container/internal/layout.h | e: f198 i:
enIn file included from xe/usr/local/clang/include/absl/strings/str_cat.hp :la116ibc:
siIn file included from lt/usr/local/clang/include/absl/strings/internal/stringify_sink.h_ :nM23ou:
nt/usr/local/clang/include/absl/strings/numbers.hne:ux205l(:lc5 o:_n Nswarning: ot'diagnose_if' is a clang extension [-Wgcc-compat]n 
nvuoll  la205
t |       i | l                      ^e 
  MAuBtSeLx_*I In file included from Nas2/s2debug.ccbT:Es18lR:
_NIn file included from nA../src/s2/s2debug.huL:l_55lN:
aEIn file included from bE../src/s2/base/commandlineflags.hlD:e_21 M/:
I*In file included from Ni/usr/local/clang/include/absl/flags/flag.h_g:Sn42Io:
ZrIn file included from Ee/usr/local/clang/include/absl/flags/internal/flag.h(d:b*30u/:
f)/usr/local/clang/include/absl/base/call_once.hf :e{195r}:,
16       :k|  F                                       ^warning: a
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t/usr/local/clang/include/absl/base/nullability.hT  :o195257B | :u 23f :f  e note: roexpanded from macro 'absl_nullable'Sn
icze  e_257)f | ;l#
ad      ge| *f    ^ i
anbe/usr/local/clang/include/absl/base/macros.hs :la251_b:ns18ol:n_ nnnote: uuexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'll
ll af  lb251al | ge )   __{N_
ua      lt| lt               ^ar
bilb/usr/local/clang/include/absl/base/nullability.heu:
t241      e:| _22                      ^_:
( (note: dexpanded from macro 'absl_nonnull'i
ag  n241o | s#ed_eiffi(n_e_ baubisllt_inno_nonbujlelc t__Nsoinzneu(lOlb
j      ,|                       ^0
) < N, \
      |                  ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | charIn file included from *s2/s2debug.cc :a18b:
sIn file included from l../src/s2/s2debug.h_:n55o:
nIn file included from n../src/s2/base/commandlineflags.hu:l21l:
 In file included from F/usr/local/clang/include/absl/flags/flag.ha:s42t:
IIn file included from n/usr/local/clang/include/absl/flags/internal/flag.ht:T30o:
B/usr/local/clang/include/absl/base/call_once.hu:f200f:e40r:( iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
128   i200, |  vcohiadr *L oawbLselv_enloCnanlullOln cbeu(fafbesrl):
:      o| n      ^c
e_/usr/local/clang/include/absl/base/nullability.hf:l241a:g22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nfel aagb,s lC_anlolnanbullel& &_ Nfonn,n
u      l| l                                       ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2closest_edge_query.cc#:d18e:
fIn file included from i../src/s2/s2closest_edge_query.hn:e34 :
aIn file included from b../src/s2/s2closest_edge_query_base.hs:l32_:
nIn file included from o/usr/local/clang/include/absl/container/btree_set.hn:n65u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :_70N:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ANBTSELR_NIANnLTt_ETIRoFNB_AufLfa_flNesEreE((Dii_nfMt_I6sN4a__tStiI sZifE,i( ebcduh,fa fr.e*.r .,a) b ks_Fl_a_VsnAto_TnAonRBuGulSfl_f _eb
ru      1f| 2f        ^8e
Sri)z
e      )| ;      ^

      |     ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/macros.h::241251::2218::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'

    241251 |  | # d e_f_iantet raibbsult_en_o_n(n(udlila g_nNoosnen_uilfl(
_      _| b                     ^u
iltin_object_siIn file included from zs2/s2closest_point_query.ccIn file included from e:(s2/s2closest_cell_query.cc18O::
b18In file included from j:
../src/s2/s2closest_point_query.h,In file included from : ../src/s2/s2closest_cell_query.h290::
)32In file included from  :
../src/s2/s2closest_point_query_base.h<In file included from : ../src/s2/s2closest_cell_query_base.h39N::
,33In file included from  :
../src/s2/s2point_index.h\In file included from :
/usr/local/clang/include/absl/container/btree_set.h27      ::
| 65In file included from                  ^:
/usr/local/clang/include/absl/container/btree_map.h
In file included from :/usr/local/clang/include/absl/container/internal/btree.h67::
70:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h551::19879:
:In file included from  /usr/local/clang/include/absl/strings/str_cat.hIn file included from :warning: s2/s2closest_edge_query.cc116passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]::

18In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :../src/s2/s2closest_edge_query.h23  ::
55134 | /usr/local/clang/include/absl/strings/numbers.h:
 :In file included from  202../src/s2/s2closest_edge_query_base.hA::B5332S::
L In file included from _warning: /usr/local/clang/include/absl/container/btree_set.hI:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N65
T:
EIn file included from R/usr/local/clang/include/absl/container/internal/btree.h  N:202A70 | L:
c_In file included from hX/usr/local/clang/include/absl/container/internal/layout.h(a:ir198n*:
s In file included from ea/usr/local/clang/include/absl/strings/str_cat.hrb:ts116_l:
o_In file included from rn/usr/local/clang/include/absl/strings/internal/stringify_sink.h_o:an23sn:
su/usr/local/clang/include/absl/strings/numbers.hil:gl208n :,F7 a:is ntwarning: sItype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]en
rttT_o  oB208r | u_cfahfsaesrri*(g inan_btis6ml4p__lnt,o  ni&n,&u ,lc lh& a&Fr,a* s ftaaInbltssTleo_,Bn uotfnrnufueel)rl;( 
ub      iu| nf                                                                              ^tf
1e2r8/usr/local/clang/include/absl/container/internal/btree_container.h) :
i496      ,:|  9                                                    ^c:
h anote: /usr/local/clang/include/absl/base/nullability.hrmacro 'ABSL_INTERNAL_X' defined here:*
241 :a22b  :s496 l | note: _#expanded from macro 'absl_nonnull'nd
oenf  ni241un | le#l d AebBfuSifLnf_eeI rNa)Tb
Es      Rl| N_      ^An
Lo_n/usr/local/clang/include/absl/base/nullability.hXn:(u241Fl:ul22n :c_ ,Nnote:  oexpanded from macro 'absl_nonnull'Cn
anlu  ll241el | e
#,      d | eK                     ^fQ
iunael ,a bMsQlu_anlo,n nKuVlall u_eN,o nMnVualllu
e      ,|                       ^.
..)     \
      In file included from | s2/s2closest_edge_query.cc        ^:
18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from In file included from s2/s2closest_cell_query.cc../src/s2/s2closest_edge_query_base.h::1832:
:
In file included from In file included from ../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/container/btree_set.h::3265:
:
In file included from In file included from ../src/s2/s2closest_cell_query_base.h/usr/local/clang/include/absl/container/internal/btree.h::3370:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/container/internal/layout.h::65198:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/strings/str_cat.h::70116:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::19823:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/strings/str_cat.h::208116::
53In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/strings/numbers.h:203:5  :208  | warning: c'diagnose_if' is a clang extension [-Wgcc-compat]h
ar*   a203b | s l _ n oAnBnSuLl_lI NFTaEsRtNIAnLt_TNoEBEuDf_fMeIrN(_uSiInZtE1(2b8u fif,e rc,h akrF*a satbTsolB_unfofnenruSlilz eb)u;f
f      e| r    ^)

      | /usr/local/clang/include/absl/base/macros.h                                                    ^:/usr/local/clang/include/absl/container/internal/btree_container.h
251::/usr/local/clang/include/absl/base/nullability.h55118:::2413 ::22note:  :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'warning:  
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]note: 
expanded from macro 'absl_nonnull'
  251 |      241551  |  | _# _d aeAtfBtiSrnLie_b IuaNtbTesE_lR__N(nA(oLdn_inXau(glinlno ss_eeNr_otin_fno(ur_l__lab
su      si| il                     ^gt
ni,n _ionbsjeerctt__osri_zaes(sOibgjn,_ i0m)p l<,  N&,& ,\ 
&      &| ,                 ^ 
false, true)In file included from ;s2/s2closest_edge_query.ccIn file included from 
:s2/s2closest_cell_query.cc      18:| :
18  ^In file included from :

../src/s2/s2closest_edge_query.hIn file included from :../src/s2/s2closest_cell_query.h34/usr/local/clang/include/absl/container/internal/btree_container.h::
:32In file included from 509:
../src/s2/s2closest_edge_query_base.h:In file included from :52../src/s2/s2closest_cell_query_base.h32:::
 33In file included from :
note: /usr/local/clang/include/absl/container/btree_set.hIn file included from expanded from macro 'ABSL_INTERNAL_X':/usr/local/clang/include/absl/container/btree_set.h
65::
65In file included from :
  /usr/local/clang/include/absl/container/internal/btree.hIn file included from 509:/usr/local/clang/include/absl/container/internal/btree.h | 70: :
70 In file included from  :
/usr/local/clang/include/absl/container/internal/layout.h In file included from : /usr/local/clang/include/absl/container/internal/layout.h198 ::
 198In file included from  :
/usr/local/clang/include/absl/strings/str_cat.h In file included from : /usr/local/clang/include/absl/strings/str_cat.h116A::
B116In file included from S:
/usr/local/clang/include/absl/strings/internal/stringify_sink.hLIn file included from :_/usr/local/clang/include/absl/strings/internal/stringify_sink.h23I::
N23/usr/local/clang/include/absl/strings/numbers.hT:
:E/usr/local/clang/include/absl/strings/numbers.h209R::N2045A::L7 _:warning: A 'diagnose_if' is a clang extension [-Wgcc-compat]Twarning: 
Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
I  B209U |   T 204E  | _ cC hAAaPBrTS*UL R_aEIbDNs_TlBE_YRn(NotAnhLni_usNl)El)E ,DF _a Ms It NI _n St IT Zo EB (u bf uf fe fr e( ru ,i  n kt F6 a4 s_ tt T \oi
B,      u | fc                                                   ^fh
earr/usr/local/clang/include/absl/container/internal/common.h1*:2 328a:Sb9is:zl e_note: )nmacro 'ABSL_INTERNAL_IF_false' defined here;o

n      n|    u    ^32l
 | l# /usr/local/clang/include/absl/base/macros.hdb:eu251ff:if18ne:er  )note: A
expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'B      
S| L      ^_  
I251N | /usr/local/clang/include/absl/base/nullability.hT :E 241R_:N_22Aa:Lt _tnote: Irexpanded from macro 'absl_nonnull'Fi
_bfu  at241le | s_#e_d((ei(ffd_iisnaaegt niaosbsfseil_e_idnf,o( n_.n_.ub.lu)li  l__t_NiVonAn__noAubRljGleS
c_      t_| _
                     ^s      i
z| e        ^(
Obj, 0)In file included from  s2/s2closest_cell_query.cc<: 18In file included from N:
s2/s2closest_point_query.cc,In file included from : ../src/s2/s2closest_cell_query.h18\::

32In file included from       :
../src/s2/s2closest_point_query.h| In file included from :                 ^../src/s2/s2closest_cell_query_base.h29
::
33In file included from :
../src/s2/s2closest_point_query_base.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h39::
65In file included from :
../src/s2/s2point_index.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h27::
70In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :In file included from /usr/local/clang/include/absl/container/internal/layout.h67s2/s2closest_edge_query.cc::
:198/usr/local/clang/include/absl/container/internal/btree_container.h18:
::
In file included from 551In file included from /usr/local/clang/include/absl/strings/str_cat.h:../src/s2/s2closest_edge_query.h:3:116:34:
 :
In file included from In file included from warning: /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2closest_edge_query_base.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]::
2332:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h  /usr/local/clang/include/absl/container/btree_set.h:551:204 | 65: :
54 In file included from :A/usr/local/clang/include/absl/container/internal/btree.h B:warning: S70type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L:

_In file included from I/usr/local/clang/include/absl/container/internal/layout.hN:  T198204E:
 | RIn file included from cN/usr/local/clang/include/absl/strings/str_cat.hhA:aL116r_:
*XIn file included from  (/usr/local/clang/include/absl/strings/internal/stringify_sink.hai:bn23ss:
le/usr/local/clang/include/absl/strings/numbers.h_r:nt215o_:no7nr:u_ lawarning: lstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s
Fiagsn  t,215I  | nictnhTsaoerBr*ut f_afboesrrl_(_aunsiosnnitng6un4l__lit m Fpial,s, t cI&hn&at,rT *o& B&au,bf sfflea_rln(soienn,nt u_tltrlyu pebe)u ;fi
f,      e
| r        ^)| 

      ^      
/usr/local/clang/include/absl/container/internal/btree_container.h| :                                                     ^511/usr/local/clang/include/absl/base/nullability.h
::52241/usr/local/clang/include/absl/base/nullability.h::: 22241:note: : expanded from macro 'ABSL_INTERNAL_X'22
note: :expanded from macro 'absl_nonnull' 
  note: 511  expanded from macro 'absl_nonnull' | 241
  |  #   d241 e |  f# id ne ef  i anAbeBs SlaL_b_nsIolNn_TnnEuoRlnNlnA uL_l_NlAo Tn_TnNRuoIlnBlnU
uT      lE| l_                     ^
C
      A| P                     ^T
UREDIn file included from _s2/s2closest_edge_query.ccB:Y18(:
tIn file included from h../src/s2/s2closest_edge_query.hi:s34):
)In file included from )../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from \/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from 
:s2/s2closest_cell_query.cc      23:| :
18                                                   ^/usr/local/clang/include/absl/strings/numbers.h:

:In file included from 216../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/container/internal/common.h:::493231::
: In file included from 9../src/s2/s2closest_cell_query_base.hwarning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 33
:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/container/btree_set.h  
:21665 | :
    In file included from 31 /usr/local/clang/include/absl/container/internal/btree.h |  :# 70d :
e In file included from f /usr/local/clang/include/absl/container/internal/layout.hi :n 198e  :
 AIn file included from  B/usr/local/clang/include/absl/strings/str_cat.h S: L116 _:
 IIn file included from  N/usr/local/clang/include/absl/strings/internal/stringify_sink.h T: E23 R:
 N/usr/local/clang/include/absl/strings/numbers.h A: L205 _: I5 F: _  twarning:  r'diagnose_if' is a clang extension [-Wgcc-compat] u
 e ( i   f205 _ |  s  a  t  i  sA fB iSceLhd_a,Ir N*.T .Ea.Rb)Ns AliL_f_n_NosEnaEntDui_lsMlfI iNbe_udSf
If      Ze| Er        ^()
b
u      f| f                                                ^e
r,/usr/local/clang/include/absl/base/nullability.h :k241F:a22s:t Tnote: oexpanded from macro 'absl_nonnull'B
uf  f241e | In file included from r#s2/s2closest_point_query.ccSd:ie18zf:
eiIn file included from )n../src/s2/s2closest_point_query.h;e:
 29      a:
| bIn file included from     ^s../src/s2/s2closest_point_query_base.h
l:_39/usr/local/clang/include/absl/base/macros.hn:
:oIn file included from 251n../src/s2/s2point_index.h:n:18u27:l:
 lIn file included from note:  /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'_:
N67o:
n  /usr/local/clang/include/absl/container/internal/btree_container.hn251u: | l551 l: 
3_      :_|  a                     ^warning: t
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
ribute  _551_ | ( ( dAiBaSgLn_oIsNeT_EiRfN(A_L__builtinIn file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635In file included from  | s2/s2closest_edge_query.cc : 18e:
xIn file included from p../src/s2/s2closest_edge_query.hl:i34c:
iIn file included from t../src/s2/s2closest_edge_query_base.h :M32u:
tIn file included from e/usr/local/clang/include/absl/container/btree_set.hx:L65o:
cIn file included from k/usr/local/clang/include/absl/container/internal/btree.h(:M70u:
tIn file included from e/usr/local/clang/include/absl/container/internal/layout.hx:*198 :
aIn file included from b/usr/local/clang/include/absl/strings/str_cat.hs:l116_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl:247:47: Xwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nser  t247_ | o r _ a s s i g n ,   i n s e r t _ o r _ a s s i g n _ i m p l ,   & & ,i n&t&_,t yfpael*s ea,b stlr_uneo)n;n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
out, /usr/local/clang/include/absl/container/internal/btree_container.hi:n511t: 47b:a snote: eexpanded from macro 'ABSL_INTERNAL_X')
 {
      |                                                 ^511
 |   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBoUnTnEu_lClA P_TNUoRnEnDu_lBlY
(      t| h                     ^i
s)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_In file included from Xs2/s2closest_edge_query.cc(:i18n:
sIn file included from e../src/s2/s2closest_edge_query.hr:t34_:
oIn file included from r../src/s2/s2closest_edge_query_base.h_:a32s:
sIn file included from i/usr/local/clang/include/absl/container/btree_set.hg:n65,:
 In file included from i/usr/local/clang/include/absl/container/internal/btree.hn:s70e:
rIn file included from t/usr/local/clang/include/absl/container/internal/layout.h_:o198r:
_In file included from a/usr/local/clang/include/absl/strings/str_cat.hs:s116i:
gIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:i23m:
p/usr/local/clang/include/absl/strings/numbers.hl:,303 :&60&:,  warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
, tr  u303e | ,i nflailnsee )s;i
z      e| _  ^t
 F/usr/local/clang/include/absl/container/internal/btree_container.ha:s509t:H52e:x Tnote: oexpanded from macro 'ABSL_INTERNAL_X'B
uff  e509r | Z e r o P a d 1 6 ( uAiBnStL6_4I_NtT EvRaNlA,L _cAhTaTrR*I BaUbTsEl__CnAoPnTnUuRlElD _oBuYt()t h{i
s      )| )                                                           ^,
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n31u:l9l:  _note: Nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l | 
#      d| e                     ^f
ine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |         In file included from  s2/s2closest_edge_query.cc :A18B:
SIn file included from L../src/s2/s2closest_edge_query.h_:I34N:
TIn file included from E../src/s2/s2closest_edge_query_base.hR:N32A:
LIn file included from _/usr/local/clang/include/absl/container/btree_set.hA:T65T:
RIn file included from I/usr/local/clang/include/absl/container/internal/btree.hB:U70T:
EIn file included from _/usr/local/clang/include/absl/container/internal/layout.hC:A198P:
TIn file included from U/usr/local/clang/include/absl/strings/str_cat.hR:E116D:
_In file included from B/usr/local/clang/include/absl/strings/internal/stringify_sink.hY:(23t:
h/usr/local/clang/include/absl/strings/numbers.hi:s330_):o)41b,:j  e warning: c type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t 
_ s i   z 330e  | (  O  b  j  ,     0  )     <     N  ,     \  
\        
|                         ^ | 
                                               ^~~~ 
         /usr/local/clang/include/absl/container/internal/btree_container.hi:n552t:_3t:y pwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*In file included from 
 s2/s2closest_cell_query.cc/usr/local/clang/include/absl/container/internal/btree_container.ha:b:18s511:
l:In file included from _52../src/s2/s2closest_cell_query.hn::o 32n:
note: nIn file included from expanded from macro 'ABSL_INTERNAL_X'u../src/s2/s2closest_cell_query_base.h
l:l33 :
  oIn file included from 511u/usr/local/clang/include/absl/container/btree_set.h | t: )65  :
 {In file included from  
/usr/local/clang/include/absl/container/internal/btree.h       : | 70                                         ^:
 
In file included from  /usr/local/clang/include/absl/container/internal/layout.h :/usr/local/clang/include/absl/base/nullability.hA198:B:
241SIn file included from :L/usr/local/clang/include/absl/strings/str_cat.h22_::I116 N:
note: TIn file included from expanded from macro 'absl_nonnull'E/usr/local/clang/include/absl/strings/internal/stringify_sink.h
R:N23A  :
L241/usr/local/clang/include/absl/strings/numbers.h_ | :A#206Td:Te7Rf:Ii Bnwarning: eUtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] T
aEb_sCl  _A206nP | oTcnUhnRauErlD*l_  Ba_YbN(sotlnh_ninusol)nl)n
)u       l|  l                     ^  
 F a s t I n t T o B u f f e r ( i n t 1 2\8
       i| ,                                                   ^ 
ch/usr/local/clang/include/absl/container/internal/common.ha:r32*: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld ebfuifnfee rA)B
S      L| _      ^I
NTE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:I Fnote: _expanded from macro 'absl_nonnull'f
al  s241e | (#iIn file included from dfs2/s2closest_edge_query.cce_:fs18ia:
ntIn file included from ei../src/s2/s2closest_edge_query.h s:af34bi:
seIn file included from ld../src/s2/s2closest_edge_query_base.h_,:n 32o.:
n.In file included from n./usr/local/clang/include/absl/container/btree_set.hu):l 65l_:
 _In file included from _V/usr/local/clang/include/absl/container/internal/btree.hNA:o_70nA:
nRIn file included from uG/usr/local/clang/include/absl/container/internal/layout.hlS:l_198
_:
      
In file included from |       /usr/local/clang/include/absl/strings/str_cat.h                     ^| :
        ^116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_cell_query.cc:18  :
335In file included from  | ../src/s2/s2closest_cell_query.h : 32 :
 In file included from  ../src/s2/s2closest_cell_query_base.h : 33 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 206 :a52b:s lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
int1  22068 | *c haabrs*l _anbosnln_unloln nouultl)  F{a
s      t| I                                                   ^n
tTo/usr/local/clang/include/absl/base/nullability.hB:u241f:In file included from f22s2/s2closest_point_query.cce::r 18(:
note: iIn file included from expanded from macro 'absl_nonnull'n../src/s2/s2closest_point_query.h
t:129  2:
2418In file included from  |  ../src/s2/s2closest_point_query_base.hi#:,d39 e:
cfIn file included from hi../src/s2/s2point_index.han:re27* :
 aIn file included from ab/usr/local/clang/include/absl/container/btree_map.hbs:sl67l_:
_n/usr/local/clang/include/absl/container/internal/btree_container.hno:on553nn:nu78ul:ll l  _bNuofnfn eumrlu)l)

             A| | B                                                   ^                     ^S
L
_/usr/local/clang/include/absl/base/nullability.hE:X241C:L22U:S Inote: Vexpanded from macro 'absl_nonnull'E
_L  O241C | K#_dFeUfNiCnTeI OaNb(smlu_)n
o      n| n                            ^u
ll _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^
  241 | #define absl_nonIn file included from ns2/s2closest_edge_query.ccu:l18l:
 In file included from _../src/s2/s2closest_edge_query.hN:o34n:
nIn file included from u../src/s2/s2closest_edge_query_base.hl:l32
:
      In file included from | /usr/local/clang/include/absl/container/btree_set.h:                     ^65
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
In file included from /usr/local/clang/include/absl/strings/numbers.hs2/s2closest_cell_query.cc::34018::
53In file included from :../src/s2/s2closest_cell_query.h :32warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_cell_query_base.h:33:
In file included from   /usr/local/clang/include/absl/container/btree_set.h340: | 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : In file included from 23 s2/s2crossing_edge_query.cc:
 :/usr/local/clang/include/absl/strings/numbers.h 18: :
207 In file included from : ../src/s2/s2crossing_edge_query.h5 :: 31  :
warning:  In file included from 'diagnose_if' is a clang extension [-Wgcc-compat] ../src/s2/s2padded_cell.h 
: 23 :
 In file included from    ../src/s2/s2cell_id.h207 : | a43 b:
 sIn file included from  l../src/s2/s1angle.h ::A:28Bu:
SiIn file included from Ln../src/s2/s2point.h_t:I127N2:
T8In file included from E*../src/s2/s2coder.hR :Na23Ab:
LsIn file included from _l/usr/local/clang/include/absl/status/status.hN_:En67Eo:
DnIn file included from _n/usr/local/clang/include/absl/status/internal/status_internal.hMu:Il29Nl:
_ In file included from So/usr/local/clang/include/absl/strings/cord.hIu:Zt94E):
( In file included from b{/usr/local/clang/include/absl/strings/internal/cordz_info.hu
:f      31f| :
e                                                    ^/usr/local/clang/include/absl/synchronization/mutex.hr
:,641 :/usr/local/clang/include/absl/base/nullability.hk68:F:241a :s22warning: t:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]T 
onote: Bexpanded from macro 'absl_nonnull'u
f  f  641e241 | r |  1# 2de8exSfpiilznieec) i;at
b       sM| lu    ^_t
neoxnL/usr/local/clang/include/absl/base/macros.hno:uc251lk:l(18 M:_u Ntnote: oeexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'nx
n&u lm  lu251
  |       A | B                      ^S_
L__aItNtTrEiRbNuAtLe__A_T(T(RdIiBaUgTnEo_sCeA_PiTfU(R_E_Db_uBiYl(ttihni_so)b,j
e      c| t                                                                   ^~~~_
size(Obj, 0) < N, In file included from \s2/s2closest_edge_query.cc
:      18| :
                 ^In file included from 
../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.hs2/s2closest_cell_query.cc::/usr/local/clang/include/absl/synchronization/mutex.h19818::
:
649In file included from In file included from :/usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2closest_cell_query.h29:::11632 :
:
In file included from warning: In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2closest_cell_query_base.h:
:2333:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h  /usr/local/clang/include/absl/container/btree_set.h:649:346 | 65: :
44 In file included from :e/usr/local/clang/include/absl/container/internal/btree.h x:warning: p70type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:

iIn file included from c/usr/local/clang/include/absl/container/internal/layout.hi:  t198346 :
 | MIn file included from  u/usr/local/clang/include/absl/strings/str_cat.h t: e116 x:
 LIn file included from  o/usr/local/clang/include/absl/strings/internal/stringify_sink.h c: k23 (:
 M/usr/local/clang/include/absl/strings/numbers.h u: t208e :x 7* :   a warning: b type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s 
l _ n   o 208n  | n cu hl al r  *m  u a, b  scilon_ntns_ottn ynCpuoeln*ld  iaFtbaissoltn_I&nn otcnTononuBdlu)lf
 f      oe| ur                            ^t(
)u i/usr/local/clang/include/absl/base/nullability.h{n:
t241      1:| 222                                           ^8:
  inote: /usr/local/clang/include/absl/base/nullability.h,expanded from macro 'absl_nonnull': 
241c:h22a:  r 241* | note:  #expanded from macro 'absl_nonnull'ad
besf  li241_n | ne#o dnaenbfusillnl_e n boaunbfnsfulel_rln) o
_n      Nn| ou      ^nl
nlu /usr/local/clang/include/absl/base/nullability.hl_:lN241
o:      n22| n:                     ^u 
lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32In file included from :
s2/s2closest_edge_query.ccIn file included from :../src/s2/s2closest_cell_query_base.h18::
33In file included from :
../src/s2/s2closest_edge_query.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h34::
65In file included from :
../src/s2/s2closest_edge_query_base.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h32::
70In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h65::
198In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h70::
116In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h198::
23In file included from :
/usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/strings/numbers.h::116208:
:In file included from 53/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23:
warning: /usr/local/clang/include/absl/strings/numbers.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
351:55:   208warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har*   351a | b s l _ n o n n u l l   F a s t I n t T o B u f f e r ( u i n t 1 2 8   i ,   c haabrs*l :a:bisnlt_1n2o8n*n ualbls lb_unfofnenru)l
l       | o                                                    ^u
t)/usr/local/clang/include/absl/base/nullability.h :{241
:      22| :                                                      ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2closest_cell_query.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2closest_cell_query.h::2932:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2closest_cell_query_base.h::9433:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/container/btree_set.h::3165:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/btree.h::67070:In file included from :
74s2/s2closest_edge_query.ccIn file included from ::/usr/local/clang/include/absl/container/internal/layout.h 18::
warning: 198In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
../src/s2/s2closest_edge_query.h
In file included from :/usr/local/clang/include/absl/strings/str_cat.h34::
116In file included from :
../src/s2/s2closest_edge_query_base.h  In file included from :670/usr/local/clang/include/absl/strings/internal/stringify_sink.h32 | ::
 23In file included from  :
/usr/local/clang/include/absl/container/btree_set.he/usr/local/clang/include/absl/strings/numbers.h:x:65p209:
l:In file included from i5/usr/local/clang/include/absl/container/internal/btree.hc::i 70t:
warning:  In file included from 'diagnose_if' is a clang extension [-Wgcc-compat]R/usr/local/clang/include/absl/container/internal/layout.h
e:a198d:
  eIn file included from 209r/usr/local/clang/include/absl/strings/str_cat.h | M: u116 t:
 eIn file included from  x/usr/local/clang/include/absl/strings/internal/stringify_sink.hAL:Bo23Sc:
Lk/usr/local/clang/include/absl/strings/numbers.h_(:IM356Nu:Tt56Ee:Rx N&warning: A type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Lm
_uN EAE  BD356S_ | LM _I IN N_ TS EI RZ NE A( Lb _u Af Tf Te Rr I, B  Uk TF Ea _s Ct AT Po TB Uu Rf Ef De _r B1 Y2 (8 tS hi iz se )) ); 

             a| | b                                                                         ^~~~    ^s

l::/usr/local/clang/include/absl/base/macros.hu:i251n:t181:2 8note: *expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h241::67822::35 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | #  d678e | f i neex palbiscli_tn oRnenaudlelr M_uNtoenxnLuolclk
(      M| u                     ^t
ex* absl_nonnull mu) ABSL_SHARED_LOCK_Fwarning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNALIn file included from _s2/s2convex_hull_query.ccA:T26T:
RIn file included from I../src/s2/s2convex_hull_query.hB:U25T:
EIn file included from _../src/s2/s2cap.hC:A30P:
TIn file included from U../src/s2/s1angle.hR:E28D:
_In file included from B../src/s2/s2point.hY:(27t:
hIn file included from i../src/s2/s2coder.hs:)23):
) /usr/local/clang/include/absl/status/status.h : 1031 : 42 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       1031  |  i n l i n e  \c
o      n| s                                              ^~~~t
 status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:25:
In file included from ../src/s2/s2cap.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) /usr/local/clang/include/absl/container/internal/btree_container.h{:
555      :| 3                                ^:
 warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
241:22:   note: 555expanded from macro 'absl_nonnull' | 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lX_(nionnsneurltl_ o_rN_oansnsuilgln
,       | i                     ^n
sert_or_assign_hint_  i251m | p l ,_ _caotntsrti b&u,t
e      _| _  ^(
(d/usr/local/clang/include/absl/container/internal/btree_container.hi:a509g:n52o:s enote: _expanded from macro 'ABSL_INTERNAL_X'i
f(_  _509b | u i l t i n _ o b j eAcBtS_Ls_iIzNeT(EORbNjA,L _0A)T T<R INB,U T\E
_      C| A                 ^P
TURED_BY(this)),          In file included from  s2/s2closest_cell_query.cc :18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.hU:N33C:
TIn file included from I/usr/local/clang/include/absl/container/btree_set.hO:N65(:
mIn file included from u/usr/local/clang/include/absl/container/internal/btree.h):
70      :
| In file included from                                   ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/base/nullability.h::116241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23:
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nonnull':
215:7:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n215e |  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln uFlals
t      I| n                     ^t
ToBufIn file included from fs2/s2convex_hull_query.cce:r26(:
iIn file included from n../src/s2/s2convex_hull_query.ht:_25t:
yIn file included from p../src/s2/s2cap.he: 30i:
,In file included from 
../src/s2/s1angle.h      :| 28      ^:

In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'1063
:13:In file included from    s2/s2crossing_edge_query.cc241:warning:  | 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#:

dIn file included from e../src/s2/s2crossing_edge_query.hf: i311063n:
 | eIn file included from c ../src/s2/s2padded_cell.hoa:nb23ss:
tlIn file included from  _../src/s2/s2cell_id.hcn:ho43an:
rnIn file included from *u../src/s2/s1angle.h l:al28b :
s_In file included from lN../src/s2/s2point.h_o:nn27on:
nuIn file included from nl../src/s2/s2coder.hul:l
23l      :
 | In file included from S                     ^/usr/local/clang/include/absl/status/status.ht
:a67t:
uIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hM:e29s:
sIn file included from a/usr/local/clang/include/absl/strings/cord.hIn file included from g:s2/s2closest_cell_query.cce94:A:
18sIn file included from :
C/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from S:../src/s2/s2closest_cell_query.ht31:r:
32(/usr/local/clang/include/absl/synchronization/mutex.h:

:In file included from       681../src/s2/s2closest_cell_query_base.h| ::            ^7433
::
 In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_set.hwarning: ::241'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]65:
:
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :70note: :
expanded from macro 'absl_nonnull'In file included from 
  /usr/local/clang/include/absl/container/internal/layout.h681:   | 198241 :
 | In file included from  In file included from #s2/s2closest_edge_query.cce/usr/local/clang/include/absl/strings/str_cat.hd:x:e18p116f:
l:
iIn file included from iIn file included from n../src/s2/s2closest_edge_query.hc/usr/local/clang/include/absl/strings/internal/stringify_sink.he:i: 34t23a:
 :
bIn file included from R/usr/local/clang/include/absl/strings/numbers.hs../src/s2/s2closest_edge_query_base.he:l:a216_32d:n:
e49oIn file included from r:n/usr/local/clang/include/absl/container/btree_set.hM n:uwarning: u65ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
e
lIn file included from x /usr/local/clang/include/absl/container/internal/btree.hL_  N:o216o70c | n:
nk (In file included from u M/usr/local/clang/include/absl/container/internal/layout.hl u:l t198
 e:
       x | /usr/local/clang/include/absl/strings/str_cat.h&                      ^:  
223m :u 25  :A  B warning:  Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] L
 _ I N T   E223 R |  N  A  Le _x Ap Tl Ti Rc Ii Bt U  TH Ee _x C( AP Po Ti Un RtcEehDea_*rB *Ya (batsbhlsi_lsn_)un,lo
ln      an| bu                                                                         ^~~~ll
el  vb,u fPfaedrS)p
e      c|                                                  ^s
pe/usr/local/clang/include/absl/base/nullability.hc: 241=: 22a:b snote: lexpanded from macro 'absl_nonnull':
:k  N241o | P#adde)f
i      /usr/local/clang/include/absl/synchronization/mutex.hn| :e                        ^689 
:a35b:s /usr/local/clang/include/absl/base/nullability.hl:warning: _257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
o23n:n   u689note: l | expanded from macro 'absl_nullable'l 
  _eNxop  nl257ni | uc#lidlte
 f      Ri| en                     ^ae
d earbMsult_enxuLlolcakb(lMeu t_eNxu*l laabbslle_
n      o| n                      ^n
ull mu, const Condition& cond)
      | In file included from                                   ^s2/s2closest_cell_query.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_cell_query.h241::3222:
:In file included from  ../src/s2/s2closest_cell_query_base.h:note: 33expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/btree_set.h:  65241:
 | In file included from #/usr/local/clang/include/absl/container/internal/btree.hd:e70f:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.he: 198a:
bIn file included from s/usr/local/clang/include/absl/strings/str_cat.hl:_116n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:u23l:
l/usr/local/clang/include/absl/strings/numbers.h :_217N:o5n:n uwarning: l'diagnose_if' is a clang extension [-Wgcc-compat]l

      |                        ^217
 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_In file included from us2/s2closest_edge_query.ccn:k18n:
oIn file included from w../src/s2/s2closest_edge_query.hn:)34,:

In file included from       ../src/s2/s2closest_edge_query_base.h| :                                         ^32
:
In file included from /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/base/nullability.h::65289:
:In file included from 34/usr/local/clang/include/absl/container/internal/btree.h:: 70:
note: In file included from expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/container/internal/layout.h
:198:
  /usr/local/clang/include/absl/strings/str_cat.h289: | 398#:d24e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 abs  l398_ | n u lAllapbhialNiutmy(_cuonnksnto wcnh a_rN*u lalb_suln_snpIn file included from ues2/s2closest_cell_query.cclc:li18afb:
ilIn file included from ee../src/s2/s2closest_cell_query.hd 
:c      32_| :
s                                 ^In file included from t
../src/s2/s2closest_cell_query_base.hr: 33 :
/In file included from //usr/local/clang/include/absl/container/btree_set.h :N65O:
LIn file included from I/usr/local/clang/include/absl/container/internal/btree.hN:T70(:
rIn file included from In file included from us2/s2crossing_edge_query.cc/usr/local/clang/include/absl/container/internal/layout.hn::t18198i:
:
mIn file included from In file included from e../src/s2/s2crossing_edge_query.h/usr/local/clang/include/absl/strings/str_cat.h/::e31x116p:
:
lIn file included from In file included from i../src/s2/s2padded_cell.h/usr/local/clang/include/absl/strings/internal/stringify_sink.hc::i2323t:
:
)In file included from 
/usr/local/clang/include/absl/strings/numbers.h../src/s2/s2cell_id.h      ::| 247                       ^43:
:
47In file included from :../src/s2/s1angle.h :/usr/local/clang/include/absl/base/nullability.h28warning: ::
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257In file included from 
:../src/s2/s2point.h23::27 :
  In file included from note: 247../src/s2/s2coder.hexpanded from macro 'absl_nullable' | :
 23 :
   In file included from 257 /usr/local/clang/include/absl/status/status.h |  :# 67d :
e In file included from f /usr/local/clang/include/absl/status/internal/status_internal.hi :n 29e :
  In file included from a /usr/local/clang/include/absl/strings/cord.hb :s 94l :
_ In file included from n /usr/local/clang/include/absl/strings/internal/cordz_info.hu :l 31l :
a /usr/local/clang/include/absl/synchronization/mutex.hb :l 815e :  16_ :N  u warning: l type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l 
a b    l815 ei | 
n        t|  _                      ^ t
 y p e *   a b sTl*_ naobnsnlu_lnlu loluatb,i liintty _buansken)o w{n
       a| r                                              ^g
);
/usr/local/clang/include/absl/base/nullability.h      :| 241               ^:
22: /usr/local/clang/include/absl/base/nullability.h:note: 289expanded from macro 'absl_nonnull':
34:   241note:  | expanded from macro 'absl_nullability_unknown'#
de  f289i | n#ed eafbisnle_ naobnsnlu_lnlu l_lNaobninluiltly
_      u| n                     ^k
nown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830In file included from :s2/s2closest_edge_query.cc14::18 :
In file included from warning: ../src/s2/s2closest_edge_query.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]34
:
In file included from ../src/s2/s2closest_edge_query_base.h:32  :
830In file included from  | /usr/local/clang/include/absl/container/btree_set.h : 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h :b70o:
oIn file included from l/usr/local/clang/include/absl/container/internal/layout.h :(198*:
a/usr/local/clang/include/absl/strings/str_cat.hb:s431l:_15n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll f  u431n | c ) (cTo*n satb sclh_anru*l laabbsill_intuyl_luanbklneo wdna)t,a
(      )|               ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :{22 :r enote: texpanded from macro 'absl_nonnull'u
rn   241p | i#edceef_i.ndea taab(s)l;_ n}o
n      n| u              ^l
l _/usr/local/clang/include/absl/base/nullability.hN:o257n:n23u:l lnote: 
expanded from macro 'absl_nullable'      
|                      ^  
257 | #define ab sl_ n u l l a b l e   _ N\u
l      l| a                                                   ^b
le
      | /usr/local/clang/include/absl/container/internal/common.h                      ^:
32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBIn file included from Us2/s2closest_cell_query.ccT:E18_:
CIn file included from A../src/s2/s2closest_cell_query.hP:T32U:
RIn file included from E../src/s2/s2closest_cell_query_base.hD:_33B:
YIn file included from (/usr/local/clang/include/absl/container/btree_set.ht:h65i:
sIn file included from )/usr/local/clang/include/absl/container/internal/btree.h):)70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 303 : 60 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                    ^
  /usr/local/clang/include/absl/container/internal/common.h303: | 32i:n9l:In file included from i s2/s2crossing_edge_query.ccnnote: :emacro 'ABSL_INTERNAL_IF_false' defined here18 
:
sIn file included from i../src/s2/s2crossing_edge_query.h   z:32e31 | _:
#tIn file included from d ../src/s2/s2padded_cell.heF:fa23is:
ntIn file included from eH../src/s2/s2cell_id.h e:Ax43BT:
SoIn file included from LB../src/s2/s1angle.h_u:If28Nf:
TeIn file included from Er../src/s2/s2point.hRZ:Ne27Ar:
LoIn file included from _P../src/s2/s2coder.hIa:Fd23_1:
f6In file included from a(/usr/local/clang/include/absl/status/status.hlu:si67en:
(tIn file included from i6/usr/local/clang/include/absl/status/internal/status_internal.hf4:__29st:
a In file included from tv/usr/local/clang/include/absl/strings/cord.hia:sl94f,:
i In file included from ec/usr/local/clang/include/absl/strings/internal/cordz_info.hdh:,a31 r:
.*. /usr/local/clang/include/absl/synchronization/mutex.h.a:)b830 s:_l36__:Vn Aowarning: n_type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]nA
uRlGlS _  o_830u
 | t       )|           ^ {
 
        | b                                                           ^o
ol /usr/local/clang/include/absl/base/nullability.h(:*241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dfeufnicn)e( Ta*b salb_snlo_nnnuulllla b_iNlointnyu_luln
k      n| o                     ^w
n),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46:In file included from  s2/s2closest_point_query.cc:warning: 18type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2closest_point_query.h:29:
  In file included from 831../src/s2/s2closest_point_query_base.h | : 39 :
 In file included from  ../src/s2/s2point_index.h : 27t:
yIn file included from p/usr/local/clang/include/absl/container/btree_map.he:n67a:
m/usr/local/clang/include/absl/container/internal/btree_container.he: 558a:b3s:l :warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
ype_  i558d | e n tAiBtSyL<In file included from _Ts2/s2closest_cell_query.ccI>::N18:T:
tEIn file included from yR../src/s2/s2closest_cell_query.hpN:eA32*L:
 _In file included from aX../src/s2/s2closest_cell_query_base.hb(:si33ln:
_sIn file included from ne/usr/local/clang/include/absl/container/btree_set.hur:lt65l_:
aoIn file included from br/usr/local/clang/include/absl/container/internal/btree.hi_:la70is:
tsIn file included from yi_/usr/local/clang/include/absl/container/internal/layout.hgu:nn198,k:
 nIn file included from io/usr/local/clang/include/absl/strings/str_cat.hnw:sn116e
:
r      In file included from t| /usr/local/clang/include/absl/strings/internal/stringify_sink.h_                                             ^:o
23r:
_/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/numbers.ha::s289330s::i3441g::n  _note: warning: hexpanded from macro 'absl_nullability_unknown'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i

nt  _289i   | m330#p | dl e, f  ic no en  s at b  s& l, _
 n       u|  l  ^ l
 a b/usr/local/clang/include/absl/container/internal/btree_container.h i: l509 i: t52 y: _ u note: n expanded from macro 'ABSL_INTERNAL_X'k 
n o w   n 509 i | _n Nt u_ lt ly _p ue n* s  pa ebAcsBilSf_Lin_eoIdnN
nT      uE| lR                                 ^lN
 AoLu_tA)T T{R
I      B| U                                        ^T
E_C/usr/local/clang/include/absl/base/nullability.hA:P241T:U22R:E Dnote: _expanded from macro 'absl_nonnull'B
Y(  t241h | i#In file included from sds2/s2crossing_edge_query.cc)e:)f18,i:
 nIn file included from  e../src/s2/s2crossing_edge_query.h  : a31 b:
 sIn file included from  l../src/s2/s2padded_cell.h _: n23 o:
 nIn file included from  n../src/s2/s2cell_id.h u: l43 l:
  In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27\:

In file included from       ../src/s2/s2coder.h| :                                                   ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/common.h::6732:
:In file included from 9/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from    /usr/local/clang/include/absl/strings/internal/cordz_info.h32: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f844i:n10e:  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_I  N844T | E R N A L _ ITF*_ faablssle_(niofn_nsualtli sofbijeedc,t ,.
.      .| )         ^ 
__/usr/local/clang/include/absl/base/nullability.hV:A241_:A22R:G Snote: _expanded from macro 'absl_nonnull'_

      |           ^241
 | #define aIn file included from bs2/s2closest_point_query.ccs:l18_:
nIn file included from o../src/s2/s2closest_point_query.hn:n29u:
lIn file included from l../src/s2/s2closest_point_query_base.h :_39N:
oIn file included from n../src/s2/s2point_index.hn:u27l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                     ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_In file included from Is2/s2crossing_edge_query.ccN:T18E:
RIn file included from N../src/s2/s2crossing_edge_query.hA:L31_:
XIn file included from (../src/s2/s2padded_cell.hi:n23s:
eIn file included from r../src/s2/s2cell_id.ht:_43o:
rIn file included from _../src/s2/s1angle.ha:s28s:
iIn file included from g../src/s2/s2point.hn:,27 :
iIn file included from n../src/s2/s2coder.hs:e23r:
tIn file included from _/usr/local/clang/include/absl/status/status.ho:r67_:
aIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hs:i29g:
nIn file included from _/usr/local/clang/include/absl/strings/cord.hh:i94n:
tIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hi:m31p:
l/usr/local/clang/include/absl/synchronization/mutex.h,: 845c:o45n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
,
      |     ^845
 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :b onote: oexpanded from macro 'ABSL_INTERNAL_X'l
 (a  b511s | l : : t y p e _ i d eAnBtSiLt_yI<NTT>E:R:NtAyLp_eA:T:T*R IaBbUsTlE__nCoAnPnTuUlRlE Dm_eBtYh(otdh)i(s))));)
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i\n
e       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
_No   n31n | u#ldle
f      i| n                     ^e
 ABSL_INTERNAL_IF_true(if_satisfiedIn file included from ,s2/s2crossing_edge_query.cc :.18.:
.In file included from )../src/s2/s2crossing_edge_query.h :i31f:
_In file included from s../src/s2/s2padded_cell.ha:t23i:
sIn file included from f../src/s2/s2cell_id.hi:e43d:

In file included from       ../src/s2/s1angle.h| :        ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94In file included from :
s2/s2closest_point_query.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h18::
31In file included from :
../src/s2/s2closest_point_query.h:/usr/local/clang/include/absl/synchronization/mutex.h29::
850In file included from :../src/s2/s2closest_point_query_base.h16::39 :
In file included from warning: ../src/s2/s2point_index.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :85067 | :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 558 : 3 :c owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
t T*   a558b | s l _AnBoSnLn_uIlNlT EoRbNjAeLc_tX,(
i      n| s               ^e
rt/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n,   241i | n#sdeerfti_noer _aabsssli_gnno_nhniunltl_ i_mNpoln,n ucloln
s      t|                       ^&
,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_  N559o | n n u l l 
 In file included from        s2/s2crossing_edge_query.cc | :                      ^18 
:
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h :c23o:
nIn file included from s../src/s2/s2cell_id.ht: 43&:
,In file included from  ../src/s2/s1angle.hf:a28l:
sIn file included from e../src/s2/s2point.h,: 27t:
rIn file included from u../src/s2/s2coder.he:,23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                  ~~~~~~~~~~~~~~~~~~~~~:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :56029 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :In file included from  851s2/s2closest_cell_query.cc :: 4518:
:In file included from  ../src/s2/s2closest_cell_query.h:warning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2closest_cell_query_base.h:33  :
851In file included from  | /usr/local/clang/include/absl/container/btree_set.h : 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h :b70o:
oIn file included from l/usr/local/clang/include/absl/container/internal/layout.h :(198a:
bIn file included from s/usr/local/clang/include/absl/strings/str_cat.hl::116::
tIn file included from y/usr/local/clang/include/absl/strings/internal/stringify_sink.hp:e23_:
i/usr/local/clang/include/absl/strings/numbers.hd:e335n:t52i:t ywarning: <type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
>::t  y335p | e : : *   a b s l _ n o n n u l l   m e t h o d ) ( ) 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22a:b snote: lexpanded from macro 'absl_nonnull':
:i  n241t | 1#2d8e*f ian bes  la _bcnsoolnn_snntuo_lnilnt ueolrulat t)_o Nr{o(
nhn      iu| nl                                                   ^tl
)
       /usr/local/clang/include/absl/base/nullability.hA| :B                     ^241S
:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#CdOeMfMiAn)e; 
a      b| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
In file included from _s2/s2crossing_edge_query.ccn:o18/usr/local/clang/include/absl/container/internal/btree_container.hn:
:nIn file included from 511u../src/s2/s2crossing_edge_query.h:l:47l31: :
 _In file included from note: N../src/s2/s2padded_cell.hexpanded from macro 'ABSL_INTERNAL_X'o:
n23n:
uIn file included from l../src/s2/s2cell_id.h  l:511
43 |       :
 | In file included from                       ^../src/s2/s1angle.h 
: 28 :
 In file included from     ABSL_INTERNAL_ATTRI../src/s2/s2point.hB:U27T:
EIn file included from _../src/s2/s2coder.hC:A23P:
TIn file included from U/usr/local/clang/include/absl/status/status.hR:E67D:
_In file included from B/usr/local/clang/include/absl/status/internal/status_internal.hY:(29t:
hIn file included from i/usr/local/clang/include/absl/strings/cord.hs:)94):
)In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 855 : 34 :   warning:  In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s2/s2closest_cell_query.cc 
: 18 :
 In file included from    ../src/s2/s2closest_cell_query.h855 : |  32  :
  In file included from e x../src/s2/s2closest_cell_query_base.h\p:
l33      i:
| cIn file included from                                               ^~~~i/usr/local/clang/include/absl/container/btree_set.h
t: 65C:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hd:i70t:
iIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:(198c:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hs:t116 :
bIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:l23*:
 /usr/local/clang/include/absl/strings/numbers.ha:b340s:l53_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   c340o | n d ) ; 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ naobnsnlu:l:lu i_nNto1n2n8u*l la
b      s| l                     ^_
nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2crossing_edge_query.cc      :| 18                     ^:

In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_n/usr/local/clang/include/absl/container/internal/btree_container.ho:n561n:u3l:l  warning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
j)
      |                                 ^561
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(fiinnsee ratb_solr__naosnsniuglnl,  _iNnosnenrutl_lo
r      _| a                     ^s
sign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTUIn file included from Rs2/s2crossing_edge_query.ccE:D18_:
BIn file included from Y../src/s2/s2crossing_edge_query.h(:t31h:
iIn file included from s../src/s2/s2padded_cell.h):)23,:
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67\:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                                                   ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/common.h::9431:
:In file included from 9/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
note: /usr/local/clang/include/absl/synchronization/mutex.hmacro 'ABSL_INTERNAL_IF_true' defined here:
896:31:    31 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n896e |   A BeSxLp_lIiNcTiEtR NCAoLn_dIiFt_itornu(ec(oinfs_ts aTt*i safbiseld_,n o.n.n.u)l li fo_bsja)t
i      s| f                              ^i
ed/usr/local/clang/include/absl/base/nullability.h
:      241| :        ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2closest_point_query.ccs:l18_:
nIn file included from o../src/s2/s2closest_point_query.hn:n29u:
lIn file included from l../src/s2/s2closest_point_query_base.h :_39N:
oIn file included from n../src/s2/s2point_index.hn:u27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
ll
        561|  |                      ^ 
 ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impIn file included from ls2/s2crossing_edge_query.cc,: 18c:
oIn file included from n../src/s2/s2crossing_edge_query.hs:t31 :
&In file included from ,../src/s2/s2padded_cell.h
:      23| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/s2cell_id.h:43  :
562In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:s29t:
 In file included from &/usr/local/clang/include/absl/strings/cord.h,: 94t:
rIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.he:,31 :
f/usr/local/clang/include/absl/synchronization/mutex.ha:l922s:e48,:
       | warning:                   ~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  563   | 922  |      s t a t i c   b o o l   G u acroannstte_eidtEeqruaatlo(rc(ohnisntt )C oAnBdSiLt_iIoNnT*E RaNbAsLl__CnOuMlMlAa)b;l
e       | a                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,

      |                                                ^/usr/local/clang/include/absl/container/internal/btree_container.h
:509:47/usr/local/clang/include/absl/base/nullability.h:: 257:note: 23expanded from macro 'ABSL_INTERNAL_X':
 note: expanded from macro 'absl_nullable'
  509 |    257  |  # d e f i n e  AaBbSsLl__InNuTlElRaNbAlLe_ A_TNTuRlIlBaUbTlEe_
C      A| P                      ^T
URED_BY(thisIn file included from )s2/s2crossing_edge_query.cc):,18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h :\27
:
      In file included from | ../src/s2/s2coder.h                                              ^~~~:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 561/usr/local/clang/include/absl/strings/cord.h::394::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/container/internal/btree_container.h923::51148::52 : warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    923511 |  |                      A B S L _ I N T E R N A L _ A T T R I BcUoTnEs_tC ACPoTnUdRiEtDi_oBnY*( tahbissl)_)n)u l l a b l e   b ) ; 
        |                                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note: \expanded from macro 'absl_nullable'

      |                                                      ^257
 | #/usr/local/clang/include/absl/container/internal/common.hd:e32f:i9n:e  note: amacro 'ABSL_INTERNAL_IF_false' defined hereb
sl_   n32u | l#ldaebflien e_ NAuBlSlLa_bIlNeT
E      R| N                      ^A
L_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2closest_cell_query.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2closest_cell_query.h27::
32In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2closest_cell_query_base.h23::
33In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h67::
65In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h29::
70In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h94::
198In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h31::
116/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 948/usr/local/clang/include/absl/strings/internal/stringify_sink.h::4823::
 /usr/local/clang/include/absl/strings/numbers.hwarning: In file included from :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2closest_point_query.cc346
::1844:
:In file included from    ../src/s2/s2closest_point_query.h948warning: : | 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :

 In file included from b../src/s2/s2closest_point_query_base.ho:o39  l:
346 In file included from  | (../src/s2/s2point_index.h *: a27 b:
 sIn file included from  l/usr/local/clang/include/absl/container/btree_map.h _: n67 u:
 l/usr/local/clang/include/absl/container/internal/btree_container.hl :a 564b :l 3e :   e warning: v passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a 
l _ ) (   c 564o  | n  s  t A  BC So Ln _d Ii NtiTinEotRn_N*tA yLap_beXs*(l i_annbsosenlrn_tun_loolnr)n_ ua=ls lsn iuoglunlt,p) t ir{n;
s
      e      | r|                                            ^t                                               ^
_
or/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h_::a241241s::s2222i::g  nnote: note: _expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'h

in    t241241_ |  | i##mddpeelff,ii nnceeo  naasbbtss ll&__,nn
oo      nn| nn  ^uu
llll/usr/local/clang/include/absl/container/internal/btree_container.h  :__509NN:oo52nn:nn uunote: llexpanded from macro 'ABSL_INTERNAL_X'll


            | |                        ^                     ^509

 |           ABSL_INTIn file included from Es2/s2crossing_edge_query.ccR:N18A:
LIn file included from _../src/s2/s2crossing_edge_query.hA:T31T:
RIn file included from I../src/s2/s2padded_cell.hB:U23T:
EIn file included from _../src/s2/s2cell_id.hC:A43P:
TIn file included from U../src/s2/s1angle.hR:E28D:
_In file included from B../src/s2/s2point.hY:(27t:
hIn file included from In file included from is2/s2closest_cell_query.ccs../src/s2/s2coder.h:):18)23:
,:
In file included from  In file included from ../src/s2/s2closest_cell_query.h /usr/local/clang/include/absl/status/status.h: :32 67:
 :
In file included from  In file included from ../src/s2/s2closest_cell_query_base.h /usr/local/clang/include/absl/status/internal/status_internal.h: :33 29:
 :
In file included from  In file included from /usr/local/clang/include/absl/container/btree_set.h /usr/local/clang/include/absl/strings/cord.h: :65 94:
 :
In file included from  In file included from /usr/local/clang/include/absl/container/internal/btree.h /usr/local/clang/include/absl/strings/internal/cordz_info.h: :70 31:
 :
In file included from  /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/layout.h :: 951198 ::
\9In file included from 
:/usr/local/clang/include/absl/strings/str_cat.h       :| 116warning:                                                    ^:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/container/internal/common.h::23  31:
951: | /usr/local/clang/include/absl/strings/numbers.h9 :: 351 v:note: o55macro 'ABSL_INTERNAL_IF_true' defined herei:
d *warning:     type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a31
b | s#ld_  en351fu | il nl ea  b Al Be S  La _r Ig N_ T  E= R  Nn Au Ll _l Ip Ft _r t; r
 u       e|  (        ^
i f /usr/local/clang/include/absl/base/nullability.h_ :s 257a :t 23i :s  f note: i expanded from macro 'absl_nullable'e 
d ,    257 . |  .#a.db)es flii:fn:_eis naattb1is2sl8f_*in euadlb
ls      al| b_        ^ln
eo n_nNuullll aobulte)
       {| In file included from 
                      ^s2/s2closest_point_query.cc      
:| 18                                                      ^:

In file included from ../src/s2/s2closest_point_query.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2closest_point_query_base.h::2239In file included from ::
s2/s2crossing_edge_query.cc In file included from :../src/s2/s2point_index.hnote: 18:expanded from macro 'absl_nonnull':
27
In file included from :
../src/s2/s2crossing_edge_query.hIn file included from   :/usr/local/clang/include/absl/container/btree_map.h24131: | :
67#In file included from :
d../src/s2/s2padded_cell.h/usr/local/clang/include/absl/container/internal/btree_container.he::f23564i:
:nIn file included from 3e../src/s2/s2cell_id.h: : a43warning: b:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]sIn file included from 
l../src/s2/s1angle.h_:n28o:
  nIn file included from 564n../src/s2/s2point.h | u: l27 l:
A In file included from B_../src/s2/s2coder.hSN:Lo23_n:
InIn file included from Nu/usr/local/clang/include/absl/status/status.hTl:El67R
:
N      In file included from A| /usr/local/clang/include/absl/status/internal/status_internal.hL                     ^:_
29X:
(In file included from i/usr/local/clang/include/absl/strings/cord.hn:s94e:
rIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h_:o31r:
_/usr/local/clang/include/absl/synchronization/mutex.ha:s954s:i52g:n ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nser  t954_ | o r _satsastiigcn _bhoionlt _CiamlpllV,o icdoPntsrtF u&n,c
t      i| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
(cIn file included from   os2/s2closest_cell_query.cc565n: | s18t :
  In file included from  C../src/s2/s2closest_cell_query.ho :n 32d :
i In file included from t ../src/s2/s2closest_cell_query_base.hi :o 33n :
* In file included from   /usr/local/clang/include/absl/container/btree_set.ha :b 65s :
l In file included from _ /usr/local/clang/include/absl/container/internal/btree.hnc:oo70nn:
nsIn file included from ut/usr/local/clang/include/absl/container/internal/layout.hl :l&198 ,:
c In file included from )t/usr/local/clang/include/absl/strings/str_cat.h;r:
u116      e:
| ,In file included from                                                    ^ /usr/local/clang/include/absl/strings/internal/stringify_sink.h
t:r23/usr/local/clang/include/absl/base/nullability.hu:
:e241/usr/local/clang/include/absl/strings/numbers.h,::
22356      ::|  56                  ~~~~~~~~~~~~~~~~~~~~:note: 
 expanded from macro 'absl_nonnull'
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]566  
 | 241  |  # d   e356 f |  i  n  e     a  b  s  l  _  n  o  n  n cu ol nl s  t_ _N io tn en ru al tl o
 r       (|  h                     ^ i
 n t )   A B S L _ I NaTbEsRlN:A:Lu_iCIn file included from nOs2/s2crossing_edge_query.cctM:1M182A:
8)In file included from *;../src/s2/s2crossing_edge_query.h 
:a      31b| :
s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from l
../src/s2/s2padded_cell.h_:n23o/usr/local/clang/include/absl/container/internal/btree_container.h:
n:In file included from n509../src/s2/s2cell_id.hu::l4743l::
  In file included from o../src/s2/s1angle.hnote: u:expanded from macro 'ABSL_INTERNAL_X't28
):
 In file included from {../src/s2/s2point.h  
:509      27 | | :
                                                        ^In file included from  
../src/s2/s2coder.h : 23/usr/local/clang/include/absl/base/nullability.h :
: In file included from 241 /usr/local/clang/include/absl/status/status.h: :22 67: :
 AIn file included from note: B/usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull'S:
L29_:
  IIn file included from 241N/usr/local/clang/include/absl/strings/cord.h | T:#E94dR:
eNIn file included from fA/usr/local/clang/include/absl/strings/internal/cordz_info.hiL:n_31eA:
 T/usr/local/clang/include/absl/synchronization/mutex.haT:bR956sI:lB52_U:nT oEn_nCuAwarning: lPtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lT
 U_RNE  oD956n_ | nB uY l(sltt
ha      it| si                     ^)c
) ,b o o l   C a s t A n d C a l l F u n c t i o n (\c
o      n| s                                              ^~~~t
 Condit/usr/local/clang/include/absl/container/internal/btree_container.hi:o564n:*3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_/usr/local/clang/include/absl/container/internal/btree_container.hn:o511n:n52u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'c
);
        | 511                                                   ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBoUnTnEu_lClA P_TNUoRnEnDu_lBlY
(      t| h                     ^i
s)))                In file included from  s2/s2crossing_edge_query.cc : 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31\:

In file included from       ../src/s2/s2padded_cell.h| :                                                   ^23
:
In file included from ../src/s2/s2cell_id.h/usr/local/clang/include/absl/container/internal/common.h::4331:
:In file included from 9../src/s2/s1angle.h:: 28:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/s2point.h
:27:
In file included from    ../src/s2/s2coder.h31: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hI:N94T:
EIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hN:A31L:
_/usr/local/clang/include/absl/synchronization/mutex.hI:F958_:t50r:u ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
f_s  a958t | i s fsiteadt,i .c. .b)o oilf _CsaasttiAsnfdiCeadl
l      M| e        ^t
hod(const CondiIn file included from ts2/s2closest_point_query.cci:o18n:
*In file included from  ../src/s2/s2closest_point_query.ha:b29s:
lIn file included from _../src/s2/s2closest_point_query_base.hn:o39n:
nIn file included from u../src/s2/s2point_index.hl:l27 :
cIn file included from )/usr/local/clang/include/absl/container/btree_map.h;:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                                                 ^:
564:3/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'absl_nonnull'
    564241 |  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nXn(uilnls e_rNto_nonru_lals
s      i| g                     ^n
, insert_or_assign_hinIn file included from ts2/s2crossing_edge_query.cc_:i18m:
pIn file included from l../src/s2/s2crossing_edge_query.h,: 31c:
oIn file included from n../src/s2/s2padded_cell.hs:t23 :
&In file included from ,../src/s2/s2cell_id.h
:      43| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/s1angle.h:28  :
565In file included from  | ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s94t:
 In file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31t:
r/usr/local/clang/include/absl/synchronization/mutex.hu:e961,: 34t:r uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                   ~~~~~~~~~~~~~~~~~~~~  
961 |     566s | t a t i c   b o o l   C a l l B y R ecfo(ncsotn_sitt eTr*a taobrs(lh_innotn)n uAlBlS Ls_eIlNfT)E R{N
A      L| _                                 ^C
OM/usr/local/clang/include/absl/base/nullability.hM:A241):;22
:       | note:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 511#:d47e:f inote: nexpanded from macro 'ABSL_INTERNAL_X'e
 ab  s511l | _ n o n n u l l   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_ATTRIBUTE_CAPTURED_BY(this)))  In file included from  s2/s2crossing_edge_query.cc : 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h :\28
:
      In file included from | ../src/s2/s2point.h                                              ^~~~:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable)/usr/local/clang/include/absl/container/internal/btree_container.h :{568 :r3e:t uwarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
 tru  e568; |   } 
A      B| S                                          ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T257E:R23N:A Lnote: _expanded from macro 'absl_nullable'X
(i  n257s | e#rdte_foirn_ea sasbisgln_,n uilnlsaebrlte_ o_rN_ualslsaibglne_
h      i| n                      ^t
_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.hIn file included from :s2/s2crossing_edge_query.cc39::
18In file included from :
../src/s2/s2point_index.hIn file included from :../src/s2/s2crossing_edge_query.h27::
31In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s2padded_cell.h67::
23/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 568../src/s2/s2cell_id.h::343::
 In file included from ../src/s2/s1angle.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]28
:
In file included from ../src/s2/s2point.h:27  :
568In file included from  | ../src/s2/s2coder.h : 23A:
BIn file included from S/usr/local/clang/include/absl/status/status.hL:_67I:
NIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hE:R29N:
AIn file included from L/usr/local/clang/include/absl/strings/cord.h_:X94(:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hs:e31r:
t/usr/local/clang/include/absl/synchronization/mutex.h_:o1033r:_20a:s swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
n,  i1033n | s e rvto_iodr _Waasisti(gMnu_theixn*t _aibmspll_,n ocnonnusltl  &m,u )& &{,

            | |                    ^  ^

/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::511241::5222::  note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'absl_nonnull'

    241511 |  | # d e f i n e   a b sAlB_SnLo_nInNuTlElR N_ANLo_nAnTuTlRlI
B      U| T                     ^E
_CAPTURED_BY(this)))      In file included from  s2/s2crossing_edge_query.cc : 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43\:

In file included from       ../src/s2/s1angle.h| :                                                   ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/common.h::2732:
:In file included from 9../src/s2/s2coder.h:: 23:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/status/status.h
:67:
In file included from    /usr/local/clang/include/absl/status/internal/status_internal.h32: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:I1050N:T31E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IF_ f1050a | l s eb(oiofl_ sWaatiitsWfiitehdT,i m.e.o.u)t (_M_uVtAe_xA*R GIn file included from aSs2/s2closest_edge_query.ccb_:s_18l
:
_      In file included from n| ../src/s2/s2closest_edge_query.ho        ^:n
34n:
uIn file included from l../src/s2/s2closest_edge_query_base.hl: 32m:
uIn file included from ,/usr/local/clang/include/absl/container/btree_set.h :a65b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h:::70D:
uIn file included from r/usr/local/clang/include/absl/container/internal/layout.ha:t198i:
o/usr/local/clang/include/absl/strings/str_cat.hn: 501t:i32m:e owarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
) {
        501|  |                               ^v
oi/usr/local/clang/include/absl/base/nullability.hd: 241A:p22p:e nnote: dexpanded from macro 'absl_nonnull'P
ie  c241e | s#(dsetfdi:n:es tarbisnlg_*n oanbnsull_ln o_nNnounlnlu ldle
s      t| ,                     ^

      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2crossing_edge_query.ccn:o18n:
nIn file included from u../src/s2/s2crossing_edge_query.hl:l31 :
_In file included from N../src/s2/s2padded_cell.ho:n23n:
uIn file included from l../src/s2/s2cell_id.hl:
43      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2closest_point_query.cc31::
18:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2closest_point_query.h1069::2932:
:In file included from  ../src/s2/s2closest_point_query_base.h:warning: 39type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point_index.h:27:
 In file included from 1069/usr/local/clang/include/absl/container/btree_map.h | : 67 :
b/usr/local/clang/include/absl/container/internal/btree_container.ho:o570l: 3W:a iwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]W
ithD  e570a | d l iAnBeS(LM_uItNeTxE*R NaAbLs_lX_(nionnsneurltl_ omru_,a sasbisgln:,: Tiinmsee rdte_aodrl_ianses)i g{n
_      h| i                               ^n
t_/usr/local/clang/include/absl/base/nullability.hi:m241p:l22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241& | ,# d&e&f,i
n      e|    ^a
bs/usr/local/clang/include/absl/container/internal/btree_container.hl:_509n:o52n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 _N  o509n | n u l l 
        |                       ^ 
  ABSL_INTERNAL_ATTRIBUTE_CAPTUREDIn file included from _s2/s2crossing_edge_query.ccB:Y18(:
tIn file included from h../src/s2/s2crossing_edge_query.hi:s31):
)In file included from ,../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from \/usr/local/clang/include/absl/status/status.h
:      67| :
                                                   ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 32/usr/local/clang/include/absl/strings/cord.h::994::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here31
:
/usr/local/clang/include/absl/synchronization/mutex.h:   108832: | 35#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne  A1088B | S L _vIoNiTdE RENnAabLl_eIDFe_bfuaglLsoeg((icfo_nssatt icshfaire*d ,a b.s.l._)n u_l_lVaAb_lAeR GnSa_m_e
)      ;| 
        ^      
|                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2closest_point_query.cc
:18:
  In file included from 257../src/s2/s2closest_point_query.h | :#29d:
eIn file included from f../src/s2/s2closest_point_query_base.hi:n39e:
 In file included from a../src/s2/s2point_index.hb:s27l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:
a/usr/local/clang/include/absl/container/internal/btree_container.hb:l570e: 3_:N uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
abl  e570
 |        |                        ^A
BSL_INTERNAL_X(insertIn file included from _s2/s2crossing_edge_query.cco:r18_:
aIn file included from s../src/s2/s2crossing_edge_query.hs:i31g:
nIn file included from ,../src/s2/s2padded_cell.h :i23n:
sIn file included from e../src/s2/s2cell_id.hr:t43_:
oIn file included from r../src/s2/s1angle.h_:a28s:
sIn file included from i../src/s2/s2point.hg:n27_:
hIn file included from i../src/s2/s2coder.hn:t23_:
iIn file included from m/usr/local/clang/include/absl/status/status.hp:l67,:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/strings/cord.h&:,94 :
&In file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h,:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h  ^:
1091:26/usr/local/clang/include/absl/container/internal/btree_container.h:: 511:warning: 52type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_INTERNAL_X' 
1091 |     b511o | o l   W a i t C o m mAoBnS(LM_uItNeTxE*R NaAbLs_lA_TnToRnInBuUlTlE _mCuAtPeTxU,R
E      D| _                         ^B
Y(/usr/local/clang/include/absl/base/nullability.ht:h241i:s22):) )note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u\l
l       | _                                                   ^N
on/usr/local/clang/include/absl/container/internal/common.hn:u31l:l9
:       | note:                      ^macro 'ABSL_INTERNAL_IF_true' defined here

   31 | #define ABSL_INTERIn file included from Ns2/s2crossing_edge_query.ccA:L18_:
IIn file included from F../src/s2/s2crossing_edge_query.h_:t31r:
uIn file included from e../src/s2/s2padded_cell.h(:i23f:
_In file included from s../src/s2/s2cell_id.ha:t43i:
sIn file included from f../src/s2/s1angle.hi:e28d:
,In file included from  ../src/s2/s2point.h.:.27.:
)In file included from  ../src/s2/s2coder.hi:f23_:
sIn file included from a/usr/local/clang/include/absl/status/status.ht:i67s:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.he:d29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h        ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_point_query.cc: 181093:
 | In file included from  ../src/s2/s2closest_point_query.h :v29o:
iIn file included from d../src/s2/s2closest_point_query_base.h :R39e:
mIn file included from o../src/s2/s2point_index.hv:e27(:
bIn file included from a/usr/local/clang/include/absl/container/btree_map.hs:e67_:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:t570e:r3n:a lwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
PerTh  r570e | a d SAyBnScLh_*I NaTbEsRlN_AnLo_nXn(uilnls esr)t;_
o      r| _                                             ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g241n:,22 :i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen _ahbisnlt__niomnpnlu,l lc o_nNsotn n&u,l l&
&      ,| 
                     ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2closest_edge_query.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2closest_edge_query.h:
:In file included from 34/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2closest_edge_query_base.h:
:In file included from 32/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/container/btree_set.h:
:65/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1109/usr/local/clang/include/absl/container/internal/btree.h::3470::
 In file included from /usr/local/clang/include/absl/container/internal/layout.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]198
:
/usr/local/clang/include/absl/strings/str_cat.h:635 :110936 | :   warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
plic  i635t |  iMnultienxeL ovcokiMda ySbter(AMpupteenxd*( satbds:l:_snturlilnagb*l ea bmsul)_
n      o| n                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl:)257 :{23}:
       | note:                                    ^expanded from macro 'absl_nullable'

  /usr/local/clang/include/absl/base/nullability.h257: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneuflilnaeb laeb s_lN_unlolnanbullel
       _| N                      ^o/usr/local/clang/include/absl/container/internal/btree_container.h
n:n572u:l3l:
       | warning:                      ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  572 |   ABSL_INTERNAL_In file included from Xs2/s2crossing_edge_query.cc(:i18n:
sIn file included from e../src/s2/s2crossing_edge_query.hr:t31_:
In file included from oIn file included from s2/s2closest_edge_query.ccr../src/s2/s2padded_cell.h:_:18a23:
s:
In file included from sIn file included from ../src/s2/s2closest_edge_query.hi../src/s2/s2cell_id.h:g:34n43:
,:
In file included from  In file included from ../src/s2/s2closest_edge_query_base.hi../src/s2/s1angle.h:n:32s28:
e:
In file included from rIn file included from /usr/local/clang/include/absl/container/btree_set.ht../src/s2/s2point.h:_:65o27:
r:
_In file included from In file included from a/usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2coder.hs::s7023i:
:
gIn file included from In file included from n/usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/status/status.h_::h19867i:
:
nIn file included from /usr/local/clang/include/absl/strings/str_cat.ht/usr/local/clang/include/absl/status/internal/status_internal.h:_:636i29:m:
29pIn file included from :l/usr/local/clang/include/absl/strings/cord.h ,:warning:  94type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:

oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hs:  t31636 :
 | &/usr/local/clang/include/absl/synchronization/mutex.hv,:o 1117i&:d&34 ,:S
 t      warning: r| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A  ^
p
pe/usr/local/clang/include/absl/container/internal/btree_container.hn :d1117509( | :s 52t :de :xnote: :pexpanded from macro 'ABSL_INTERNAL_X'sl
tircii  nt509 g | M* u  ta eb xs Ll o_ cn ko Mn anAyuBblSelL( _MdIueNtsTetEx,R* N cAaoLbn_ssAltT_ TnARulIlpBlhUaaTbNElu_meC& A mPauT),U; R
cE      oD| n_                            ^sB
tY (/usr/local/clang/include/absl/base/nullability.hCt:oh241ni:ds22i):t) i,note: o expanded from macro 'absl_nonnull'n 
&     c 241o  | n #d d) e
 f       i|  n                                 ^ e
   a/usr/local/clang/include/absl/base/nullability.h b: s257 l: _23 n: o  nnote:  nexpanded from macro 'absl_nullable' u
\l
  l      257 |  | _                                                   ^#N
doen/usr/local/clang/include/absl/container/internal/common.hnf:ui31ln:le9
 :      a | bnote:                      ^smacro 'ABSL_INTERNAL_IF_true' defined here
l
_nu   l31l | a#bdleef i_nNeu lAlBaSbLl_eI
N      In file included from T| s2/s2closest_edge_query.ccE                      ^R:
N18A:
LIn file included from _../src/s2/s2closest_edge_query.hI:F34_:
tIn file included from r../src/s2/s2closest_edge_query_base.hu:e32(:
iIn file included from f/usr/local/clang/include/absl/container/btree_set.h_:s65a:
tIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:f70i:
eIn file included from d/usr/local/clang/include/absl/container/internal/layout.h,: 198.:
./usr/local/clang/include/absl/strings/str_cat.h.:)637 :i29f:_ swarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
isfi  e637d | In file included from 
vs2/s2crossing_edge_query.cc      o:| i18        ^d:

 In file included from S../src/s2/s2crossing_edge_query.ht:r31A:
pIn file included from p../src/s2/s2padded_cell.he:n23d:
(In file included from s../src/s2/s2cell_id.ht:In file included from d43s2/s2closest_point_query.cc::
::In file included from 18s../src/s2/s1angle.h:
t:In file included from r28../src/s2/s2closest_point_query.hi:
:nIn file included from 29g../src/s2/s2point.h:
*:In file included from  27../src/s2/s2closest_point_query_base.ha:
:bIn file included from 39s../src/s2/s2coder.h:
l:In file included from _23../src/s2/s2point_index.hn:
:oIn file included from 27n/usr/local/clang/include/absl/status/status.h:
n:In file included from u67/usr/local/clang/include/absl/container/btree_map.hl:
:lIn file included from 67 /usr/local/clang/include/absl/status/internal/status_internal.h:
d:/usr/local/clang/include/absl/container/internal/btree_container.he29:s:
572tIn file included from :,/usr/local/clang/include/absl/strings/cord.h3 ::c94 o:
warning: nIn file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s/usr/local/clang/include/absl/strings/internal/cordz_info.h
t: 31A:
l/usr/local/clang/include/absl/synchronization/mutex.h  p:572h1132 | a: N10 u:Am B&warning: S type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]La
_,I
N       T| 1132E                            ^ | R
 N A/usr/local/clang/include/absl/base/nullability.hML:u_241tX:e(22xi:*n  snote: aeexpanded from macro 'absl_nonnull'br
stl_  _o241nr | u_#ladlseasfbiilgnene , c aoibnnssslte_ rnmtou_n_on;ru
_l      al| s          ^s_
iIn file included from Ng/usr/local/clang/include/absl/base/nullability.hs2/s2closest_cell_query.ccon::n_25718nh::
ui23In file included from ln:../src/s2/s2closest_cell_query.hlt :
_32note:       i:
expanded from macro 'absl_nullable'| mIn file included from 
                     ^p../src/s2/s2closest_cell_query_base.h
l  :,25733  | :
c#In file included from od/usr/local/clang/include/absl/container/btree_set.hne:sf65ti:
 nIn file included from &e/usr/local/clang/include/absl/container/internal/btree.h, : a70&b:
&sIn file included from ,l/usr/local/clang/include/absl/container/internal/layout.h
In file included from _:      s2/s2closest_edge_query.ccn198| :u:
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~18l
/usr/local/clang/include/absl/strings/str_cat.h:
l:In file included from a223  ../src/s2/s2closest_edge_query.hb:573:l25 | 34e: :
   In file included from warning: _ ../src/s2/s2closest_edge_query_base.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N :
u 32l :
l In file included from   a /usr/local/clang/include/absl/container/btree_set.h223b : | l 65 e :
 
 In file included from e       /usr/local/clang/include/absl/container/internal/btree.hx|  :p                      ^ 70l
 :
i In file included from c /usr/local/clang/include/absl/container/internal/layout.hit:tr198 u:
He/usr/local/clang/include/absl/strings/str_cat.he,:x 639(f:Pa29ol:is newarning: t,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
ec*o n  as639bt | s_vlio_tinedur laSlttaorbrAl(pehp ievnn,td )(P saAtdBdSS:pL:e_scIt NrsTipEneRgcN* A =La _baCsbOlsM_lMn:Ao:)nk;nN
uo      lP| la                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ d
d)e
s      /usr/local/clang/include/absl/container/internal/btree_container.ht| :,                        ^509 
:c47o:n /usr/local/clang/include/absl/base/nullability.hs:note: t257expanded from macro 'ABSL_INTERNAL_X' :
A23l:p   h509note: a | expanded from macro 'absl_nullable'N 
u m   & 257   | a #, d
 e       f|  i                            ^An
BeS /usr/local/clang/include/absl/base/nullability.hLa:_b241Is:Nl22T_:En Runote: Nexpanded from macro 'absl_nonnull'lA
lLa_  bA241lT | eT# Rd_IeNBfuUilTnlEea_ bCalAbePs
Tl      U_| Rn                      ^Eo
Dn_nBuYl(lt h_iNso)n)n,u l l 
        |                       ^ 
         In file included from  s2/s2crossing_edge_query.cc : 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31\:

In file included from       ../src/s2/s2padded_cell.h| :                                              ^~~~23In file included from 
:
s2/s2closest_edge_query.ccIn file included from :../src/s2/s2cell_id.h18::
43In file included from :
../src/s2/s2closest_edge_query.hIn file included from :../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/btree_container.h34:::
28572In file included from :
:../src/s2/s2closest_edge_query_base.hIn file included from 3:../src/s2/s2point.h:32: :
27In file included from warning: :
/usr/local/clang/include/absl/container/btree_set.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from :
../src/s2/s2coder.h65:/usr/local/clang/include/absl/container/internal/btree_container.h:
23:In file included from :
511/usr/local/clang/include/absl/container/internal/btree.hIn file included from ::/usr/local/clang/include/absl/status/status.h5270:::
67 In file included from :
/usr/local/clang/include/absl/container/internal/layout.hnote: In file included from :expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/status/internal/status_internal.h198
::
29/usr/local/clang/include/absl/strings/str_cat.h:
:  In file included from 641511/usr/local/clang/include/absl/strings/cord.h: | :29 94: :
  In file included from warning:  /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
 31 :
   /usr/local/clang/include/absl/synchronization/mutex.h 641:  | 1146Av:Bo7Si:Ld _ warning: IS'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]Nt
TrEARpNp Ae1146Ln | _d A( Ts Tt Rd I: B:tUshTtiErs_i)Cn)Ag P*AT BUaSRbLEs_DlE__XBnCYoL(nUtnShuIilVslE) _)dL)eO sC tK ,_  F cU oN nC sT tI  O AN l( pm hu a) N
 u       m|  &      ^~~~  
 a , 
       \| 
                            ^      
|                                                    ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/container/internal/common.h22::32 :9note: :expanded from macro 'absl_nonnull' 
note:   macro 'ABSL_INTERNAL_IF_false' defined here241
 | #d   e32f | i#ndee faibn/usr/local/clang/include/absl/synchronization/mutex.hse:l 1153_A:nB39oS:nL n_warning: uItype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lN
lT E_R NN1153oA | nL n_ uIelFxl_p
fl      ai| lc                     ^si
et( iRfe_lseaatsiasbflieeMdu,t e.x.L.o)c k_(_MVuAt_eAxIn file included from R*s2/s2closest_edge_query.ccG :Sa18_b:
_sIn file included from 
l../src/s2/s2closest_edge_query.h      _:| n34        ^o:

nIn file included from n../src/s2/s2closest_edge_query_base.hu:l32l:
 In file included from m/usr/local/clang/include/absl/container/btree_set.hu:)65
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                                      ^:
70:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.h::241198::
22/usr/local/clang/include/absl/strings/str_cat.h:: 646:note: 36expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f646i | nien laibnsel _vnooindn uSltlr A_pNpoennndu(lslt
d      :| :                     ^s
tring* absl_nonnull dest, const AlphaNuIn file included from ms2/s2crossing_edge_query.cc&: 18a:
,In file included from 
../src/s2/s2crossing_edge_query.h      :| 31                                   ^:

In file included from ../src/s2/s2padded_cell.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :../src/s2/s2cell_id.h22::43 :
In file included from note: ../src/s2/s1angle.hexpanded from macro 'absl_nonnull':
28:
In file included from   ../src/s2/s2point.h241: | 27#:
dIn file included from e../src/s2/s2coder.hf:i23n:
eIn file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1158
:      53| :                     ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTIn file included from Es2/s2closest_point_query.cc_:C18A:
PIn file included from T../src/s2/s2closest_point_query.hU:R29E:
DIn file included from _../src/s2/s2closest_point_query_base.hB:Y39(:
tIn file included from h../src/s2/s2point_index.hi:s27):
,In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                                                    ^~~~:

/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or/usr/local/clang/include/absl/synchronization/mutex.h_:a1166s:s39i:g nwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
inse r1166t | _ o re_xapslsiicgint_ hRienlte_aismapbll,e McuotnesxtL o&c,k (&M&u,t
e      x| *  ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l m  u509, |   c o n s t   C o n dAiBtSiLo_nI&N TcEoRnNdA)L
_      A| T                                      ^T
RI/usr/local/clang/include/absl/base/nullability.hB:U241T:E22_:C Anote: Pexpanded from macro 'absl_nonnull'T
UR  E241D | _#BdYe(ftihnies )a)b,s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_In file included from ss2/s2crossing_edge_query.cca:t18i:
sIn file included from f../src/s2/s2crossing_edge_query.hi:e31d:
,In file included from  ../src/s2/s2padded_cell.h.:.23.:
)In file included from  ../src/s2/s2cell_id.hi:f43_:
sIn file included from a../src/s2/s1angle.ht:i28s:
fIn file included from i../src/s2/s2point.he:d27
:
      In file included from | ../src/s2/s2coder.h        ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2closest_point_query.cc::117918::
10In file included from :../src/s2/s2closest_point_query.h :29warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_point_query_base.h:39:
 In file included from 1179../src/s2/s2point_index.h | : 27 :
MIn file included from u/usr/local/clang/include/absl/container/btree_map.ht:e67x:
*/usr/local/clang/include/absl/container/internal/btree_container.h :a574b:s3l:_ nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
lable   574m | u _ ;A
B      S| L         ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E257R:N23A:L _note: Xexpanded from macro 'absl_nullable'(
in  s257e | r#td_eofri_naes saibgsnl,_ niunlslearbtl_eo r__Nauslsliagbnl_eh
i      n| t                      ^_
impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_asIn file included from ss2/s2crossing_edge_query.cci:g18n:
_In file included from h../src/s2/s2crossing_edge_query.hi:n31t:
_In file included from i../src/s2/s2padded_cell.hm:p23l:
,In file included from  ../src/s2/s2cell_id.hc:o43n:
sIn file included from t../src/s2/s1angle.h :&28,:
 In file included from &../src/s2/s2point.h&:,27
:
      In file included from | ../src/s2/s2coder.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
23:
In file included from /usr/local/clang/include/absl/status/status.h  :57567 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1212t:r52u:e ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
rue,  1212c | obnosotl_ iCtoenrdaittoiro(nh:i:nCta)s tAABnSdLC_aIlNlTMEeRtNhAoLd_(CcOoMnMsAt) ;C
o      n| d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
tio/usr/local/clang/include/absl/container/internal/btree_container.hn:*511 :a47b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onn  u511l | l   c )   { 
        |                                                     ^ 
ABS/usr/local/clang/include/absl/base/nullability.hL:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  A241T | T#RdIeBfUiTnEe_ CaAbPsTlU_RnEoDn_nBuYl(lt h_iNso)n)n)u l l 
        |                       ^ 
                 \
      |                                               ^~~~
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_XIn file included from (s2/s2crossing_edge_query.cci:n18s:
eIn file included from r../src/s2/s2crossing_edge_query.ht:_31o:
rIn file included from _../src/s2/s2padded_cell.ha:s23s:
iIn file included from g../src/s2/s2cell_id.hn:,43 :
iIn file included from n../src/s2/s1angle.hs:e28r:
tIn file included from _../src/s2/s2point.ho:r27_:
aIn file included from s../src/s2/s2coder.hs:i23g:
nIn file included from _/usr/local/clang/include/absl/status/status.hh:i67n:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hi:m29p:
lIn file included from ,/usr/local/clang/include/absl/strings/cord.h :&94&:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31n:
s/usr/local/clang/include/absl/synchronization/mutex.ht: 1230&:,12
:       | warning:   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:509 :123052 | :   note:  expanded from macro 'ABSL_INTERNAL_X' 
boo  l509  | ( * a b s l _ n o n nAuBlSlL _fIuNnTcE)R(NTA*L _aAbTsTlR_InBuUlTlEa_bCiAlPiTtUyR_EuDn_kBnYo(wtnh)i,s
)      )| ,           ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                                                   ^l
_n/usr/local/clang/include/absl/container/internal/common.ho:n32n:u9l:l  note: _macro 'ABSL_INTERNAL_IF_false' defined hereN
onn   u32l | l#
d      e| f                     ^i
ne ABSLIn file included from _s2/s2crossing_edge_query.ccI:N18T:
EIn file included from R../src/s2/s2crossing_edge_query.hN:A31L:
_In file included from I../src/s2/s2padded_cell.hF:_23f:
aIn file included from l../src/s2/s2cell_id.hs:e43(:
iIn file included from f../src/s2/s1angle.h_:s28a:
tIn file included from i../src/s2/s2point.hs:f27i:
eIn file included from d../src/s2/s2coder.h,: 23.:
.In file included from ./usr/local/clang/include/absl/status/status.h): 67_:
_In file included from V/usr/local/clang/include/absl/status/internal/status_internal.hA:_29A:
RIn file included from G/usr/local/clang/include/absl/strings/cord.hS:_94_:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :        ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2closest_point_query.cc:18:
 In file included from 1230../src/s2/s2closest_point_query.h | : 29 :
 In file included from  ../src/s2/s2closest_point_query_base.hb:o39o:
lIn file included from  ../src/s2/s2point_index.h(:*27a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_67n:
o/usr/local/clang/include/absl/container/internal/btree_container.hn:n577u:l3l:  fwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
c)(T  *577  | a b sAlB_SnLu_lIlNaTbEiRlNiAtLy__Xu(niknnsoewrnt)_,o
r      _| a                                 ^s
si/usr/local/clang/include/absl/base/nullability.hg:n289,: 34i:n snote: eexpanded from macro 'absl_nullability_unknown'r
t_  o289r | _#adsesfiignne_ haibnstl__inmuplll,a b&i&l,i tcyo_nusntk n&o,w
n       | _  ^N
ul/usr/local/clang/include/absl/container/internal/btree_container.hl:_511u:n52s:p enote: cexpanded from macro 'ABSL_INTERNAL_X'i
fie  d511
 |        |                                   ^ 
       ABSL_INTEIn file included from Rs2/s2crossing_edge_query.ccN:A18L:
_In file included from A../src/s2/s2crossing_edge_query.hT:T31R:
IIn file included from B../src/s2/s2padded_cell.hU:T23E:
_In file included from C../src/s2/s2cell_id.hA:P43T:
UIn file included from R../src/s2/s1angle.hE:D28_:
BIn file included from Y../src/s2/s2point.h(:t27h:
iIn file included from s../src/s2/s2coder.h):)23):
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1231 :\8
:       | warning:                                                    ^type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/common.h: 321231: | 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined hereT
* a   b32s | l#_dneuflilnaeb iAlBiStLy__IuNnTkEnRoNwAnL _aIrFg_)f
a      l| s       ^e
(i/usr/local/clang/include/absl/base/nullability.hf:_289s:a34t:i snote: fexpanded from macro 'absl_nullability_unknown'i
ed  ,289  | .#.d.e)f i_n_eV Aa_bAsRlG_Sn_u_l
l      a| b        ^i
lity_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |  In file included from  s2/s2closest_point_query.cc : 18b:
oIn file included from o../src/s2/s2closest_point_query.hl: 29(:
*In file included from a../src/s2/s2closest_point_query_base.hb:s39l:
_In file included from n../src/s2/s2point_index.ho:n27n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 67f:
u/usr/local/clang/include/absl/container/internal/btree_container.hn:c579):(3T:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  u579l | l a bAiBlSiLt_yI_NuTnEkRnNoAwLn_)X,(
i      n| s           ^e
rt/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n,   241i | n#sdeerfti_noer _aabsssli_gnno_nhniunltl_ i_mNpoln,n u&l&l,
       c| o                     ^n
st &,
      | In file included from   ^s2/s2crossing_edge_query.cc
:18:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2crossing_edge_query.h509::3152:
:In file included from  ../src/s2/s2padded_cell.h:note: 23expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2cell_id.h:43:
  In file included from 509../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:I67N:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hR:N29A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hA:T94T:
RIn file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hB:U31T:
E/usr/local/clang/include/absl/synchronization/mutex.h_:C1241A:P34T:U Rwarning: Etype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]D
_BY (1241t | h i s ) )b,o o l   ( * a b s l _ n o n n u l l   f u n c ) (\T
*       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n32u:l9l:a bnote: imacro 'ABSL_INTERNAL_IF_false' defined herel
ity   _32u | n#kdneofwinn)e, 
A      B| S                                 ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T289E:R34N:A Lnote: _expanded from macro 'absl_nullability_unknown'I
F_  f289a | l#sdee(fiifn_es aatbisslf_ineudl,l a.b.i.l)i t_y__VuAn_kAnRoGwSn_ __
N      u| l        ^l
_unspecifIn file included from is2/s2closest_point_query.cce:d18
:
      In file included from | ../src/s2/s2closest_point_query.h                                 ^:
29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   AIn file included from Bs2/s2crossing_edge_query.ccS:L18_:
IIn file included from N../src/s2/s2crossing_edge_query.hT:E31R:
NIn file included from A../src/s2/s2padded_cell.hL:_23X:
(In file included from i../src/s2/s2cell_id.hn:s43e:
rIn file included from t../src/s2/s1angle.h_:o28r:
_In file included from a../src/s2/s2point.hs:s27i:
gIn file included from n../src/s2/s2coder.h,: 23i:
nIn file included from s/usr/local/clang/include/absl/status/status.he:r67t:
_In file included from o/usr/local/clang/include/absl/status/internal/status_internal.hr:_29a:
sIn file included from s/usr/local/clang/include/absl/strings/cord.hi:g94n:
_In file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31t:
_/usr/local/clang/include/absl/synchronization/mutex.hi:m1242p:l44,:  &warning: &type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension],
 co n1242s | t   & , 
t      y| p  ^e
na/usr/local/clang/include/absl/container/internal/btree_container.hm:e511 :a52b:s lnote: :expanded from macro 'ABSL_INTERNAL_X':
typ  e511_ | i d e n t i t y < T >A:B:StLy_pIeN*T EaRbNsAlL__nAuTlTlRaIbBiUlTiEt_yC_AuPnTkUnRoEwDn_
B      Y| (                                           ^t
hi/usr/local/clang/include/absl/base/nullability.hs:)289):)34 :   note:  expanded from macro 'absl_nullability_unknown' 
      289  |  # d e f i n e   a b s l _ n\u
l      l| a                                                   ^b
il/usr/local/clang/include/absl/container/internal/common.hi:t31y:_9u:n knote: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
wn    _31N | u#ldle_fuinnsep eAcBiSfLi_eIdN
T      E| R                                 ^N
AL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:In file included from 43s2/s2closest_point_query.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2closest_point_query.h:
:In file included from 29../src/s2/s2point.h:
:In file included from 27../src/s2/s2closest_point_query_base.h:
:In file included from 39../src/s2/s2coder.h:
:In file included from 23../src/s2/s2point_index.h:
:In file included from 27/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 579/usr/local/clang/include/absl/strings/cord.h::394::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :31'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

/usr/local/clang/include/absl/synchronization/mutex.h:1249:8:   579warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB S1249L | _ I N T ETR*N AaLb_sXl(_innosnenrutl_lo ro_bajsescitg,n
,       | i       ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241_ | h#idnetf_iinmep la,b s&l&_,n ocnonnusltl  &_,N
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll
        580|  |                      ^ 
                 falIn file included from ss2/s2crossing_edge_query.cce:,18 :
tIn file included from r../src/s2/s2crossing_edge_query.hu:e31,:
 In file included from c../src/s2/s2padded_cell.ho:n23s:
tIn file included from _../src/s2/s2cell_id.hi:t43e:
rIn file included from a../src/s2/s1angle.ht:o28r:
(In file included from h../src/s2/s2point.hi:n27t:
)In file included from  ../src/s2/s2coder.hA:B23S:
LIn file included from _/usr/local/clang/include/absl/status/status.hI:N67T:
EIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hN:A29L:
_In file included from C/usr/local/clang/include/absl/strings/cord.hO:M94M:
AIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
1250:43:/usr/local/clang/include/absl/container/internal/btree_container.h :511warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]47
:  1250note:  | expanded from macro 'ABSL_INTERNAL_X' 
   b  o511o | l   ( a b s l : : t yApBeS_Li_dIeNnTtEiRtNyA<LT_>A:T:TtRyIpBeU:T:E*_ CaAbPsTlU_RnEoDn_nBuYl(lt hmiest)h)o)d ) ( ) ) 
        |                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | \#
d      e| f                                              ^~~~i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s2crossing_edge_query.cc  :58118 | :
 In file included from  ../src/s2/s2crossing_edge_query.hA:B31S:
LIn file included from _../src/s2/s2padded_cell.hI:N23T:
EIn file included from R../src/s2/s2cell_id.hN:A43L:
_In file included from X../src/s2/s1angle.h(:i28n:
sIn file included from e../src/s2/s2point.hr:t27_:
oIn file included from r../src/s2/s2coder.h_:a23s:
sIn file included from i/usr/local/clang/include/absl/status/status.hg:n67,:
 In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:s29e:
rIn file included from t/usr/local/clang/include/absl/strings/cord.h_:o94r:
_In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hs:s31i:
g/usr/local/clang/include/absl/synchronization/mutex.hn:_1260h:i43n:t _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl,  1260& | & ,   c obnosotl  &(,a
b      s| l  ^:
:t/usr/local/clang/include/absl/container/internal/btree_container.hy:p509e:_52i:d enote: nexpanded from macro 'ABSL_INTERNAL_X't
ity  <509T | > : : t y p e : : *  AaBbSsLl__InNoTnEnRuNlAlL _mAeTtThRoIdB)U(T)E
_      C| A                                          ^P
TU/usr/local/clang/include/absl/base/nullability.hR:E241D:_22B:Y (note: texpanded from macro 'absl_nonnull'h
is  )241) | ,# d e f i n e   a b s l _ n o n n u l l   _ N o n\n
u      l| l                                                   ^

      |                      ^/usr/local/clang/include/absl/container/internal/common.h
:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_In file included from ss2/s2crossing_edge_query.cca:t18i:
sIn file included from f../src/s2/s2crossing_edge_query.hi:e31d:

In file included from       ../src/s2/s2padded_cell.h| :        ^23
:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2closest_point_query.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2closest_point_query.h::2929:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2closest_point_query_base.h::9439:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2point_index.h::3127:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/btree_map.h::127967::
35:/usr/local/clang/include/absl/container/internal/btree_container.h :581warning: :3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1279 | voi  d581  | R e gAiBsStLe_rIMNuTtEeRxNPArLo_fXi(lienrs(evroti_do r(_*aasbssilg_nn,o ninnuslelr tf_no)r(_iansts6i4g_nt_ hwianitt__icmypcll,e s&)&),; 
c      o| n                                  ^s
t /usr/local/clang/include/absl/base/nullability.h&:,241
:      22| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
note: expanded from macro 'absl_nonnull'
  582 |    241  |  # d e f i n e   a b s l _ n o ntnruulel,  _fNaolnsneu,l lc
o      n| s                     ^t
_iterator(hint) ABSL_INTERNALIn file included from _s2/s2crossing_edge_query.ccC:O18M:
MIn file included from A../src/s2/s2crossing_edge_query.h):;31
:
      In file included from | ../src/s2/s2padded_cell.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
23:
In file included from ../src/s2/s2cell_id.h/usr/local/clang/include/absl/container/internal/btree_container.h::43509:
:In file included from 47../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h  :50923 | :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L94_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hT:E31R:
N/usr/local/clang/include/absl/synchronization/mutex.hA:L1293_:A33T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE_ C1293A | PvToUiRdE DR_eBgYi(sttheirsM)u)t,e x T r a c e r ( v o i d   ( * a b s l _ n o n n\u
l      l|                                                ^~~~f
n)(cons/usr/local/clang/include/absl/container/internal/btree_container.ht: 581c:h3a:r *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
b/usr/local/clang/include/absl/container/internal/btree_container.hs:l511_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l m  s511g | , 
        |                                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| )                     ^ 
     In file included from  s2/s2crossing_edge_query.cc : 18 :
In file included from  In file included from s2/s2closest_cell_query.cc ../src/s2/s2crossing_edge_query.h: :18 31:
 :
In file included from  In file included from  ../src/s2/s2closest_cell_query.h../src/s2/s2padded_cell.h :: 3223 :
:
 In file included from In file included from  ../src/s2/s2closest_cell_query_base.h../src/s2/s2cell_id.h :: 3343\:
:

In file included from In file included from       /usr/local/clang/include/absl/container/btree_set.h../src/s2/s1angle.h| ::                                                   ^6528
:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2point.h:::327027::
:
9In file included from In file included from :/usr/local/clang/include/absl/container/internal/layout.h../src/s2/s2coder.h ::198note: 23:
macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/status/status.h::   3986732::
 | 24In file included from #:/usr/local/clang/include/absl/status/internal/status_internal.hd :e29warning: f:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]iIn file included from 
n/usr/local/clang/include/absl/strings/cord.he: 94A:
  BIn file included from 398S/usr/local/clang/include/absl/strings/internal/cordz_info.h | L: _31 I:
AN/usr/local/clang/include/absl/synchronization/mutex.hlT:pE1293hR:aN62NA:uL m_warning: (Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]cF
o_nfsa tl1293 s | cevh(oaiirfd*_  sRaaebtgsiilss_ftnieuerldMl,ua tb.el.xe.T )rc a__cs_etVrrA( _v Ao/Ri/Gd S N_(O_*L
aI      bN| sT        ^l(
_rnuonntniumlel/ efxnp)l(iccoints)t
       c| h                       ^a
r* ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   m257s | g#,d
e      f| i                                                             ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2closest_cell_query.cc      :| 18                     ^:

In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2crossing_edge_query.cc:  18431:
 | In file included from  ../src/s2/s2crossing_edge_query.h :c31o:
nIn file included from s../src/s2/s2padded_cell.ht: 23c:
hIn file included from a../src/s2/s2cell_id.hr:*43 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23d:
aIn file included from t/usr/local/clang/include/absl/status/status.ha:(67):
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/strings/cord.h{: 94r:
eIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hu:r31n:
 /usr/local/clang/include/absl/synchronization/mutex.hp:i1309e:c35e:_ .warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ta( )1309; |  v}o
i      d|                ^R
egi/usr/local/clang/include/absl/base/nullability.hs:t257e:r23C:o nnote: dexpanded from macro 'absl_nullable'V
ar  T257r | a#cdeerf(ivnoei da b(s*la_bnsull_lnaobnlneu l_lN uflnl)a(b
l      e| 
                                  ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.hIn file included from :s2/s2closest_point_query.cc43::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2closest_point_query.h28::
29In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2closest_point_query_base.h27::
39In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2point_index.h23::
27In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h67::
67In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
592:/usr/local/clang/include/absl/strings/cord.h3::110 :55warning: : passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  592   | 110  |  vAoBiSdL _AIpNpTeEnRdNCAoLr_dXT(oiSntsreirntg_(ocro_nassts iCgonr,d &i nssrecr,t _sotrd_:a:ssstirginn_gh*i natb_silm_pnlo,n n&u&l,l  &d&s,t )t;r
u      e| ,                                                      ^

      |   ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/container/internal/btree_container.h22::509 :52note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'ABSL_INTERNAL_X'  
241 | #d  e509f | i n e   a b s l _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lA
T      T| R                     ^I
BUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_point_query.cc:18:
In file included from ../src/s2/s2closest_point_query.h:29:
In file included from ../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h:27:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfIn file included from is2/s2crossing_edge_query.cce:d18,:
 In file included from .../src/s2/s2crossing_edge_query.h.:.31):
 In file included from i../src/s2/s2padded_cell.hf:_23s:
aIn file included from t../src/s2/s2cell_id.hi:s43f:
iIn file included from e../src/s2/s1angle.hd:
28      :
| In file included from         ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2closest_point_query.cc::42518::
62In file included from :../src/s2/s2closest_point_query.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h  :42527 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hf:r67i:
e/usr/local/clang/include/absl/container/internal/btree_container.hn:d592 :v3o:i dwarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]C
opyCo  r592d | T o SAtBrSiLn_gI(NcToEnRsNtA LC_oXr(di&n sserrct,_ osrt_da:s:ssitgrni,n gi*n saebrstl__onro_nansuslilg nd_shti)n;t
_      i| m                                                             ^p
l, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22&:& , trnote: uexpanded from macro 'absl_nonnull'e
,
        241|  |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
def  i593n | e   a b s l _ n o n n u l l   _ N o ntnruulel,
       c| o                     ^n
st_iterator(hint) ABSL_INTERNIn file included from As2/s2crossing_edge_query.ccL:_18C:
OIn file included from M../src/s2/s2crossing_edge_query.hM:A31):
;In file included from 
../src/s2/s2padded_cell.h      :| 23                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2cell_id.h:43/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/s1angle.h::4728::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'ABSL_INTERNAL_X'27
:
In file included from ../src/s2/s2coder.h:23  :
511In file included from  | /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h :A437B:S47L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA  L437_ | A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) )          s t d : : s t r i n g *   a b s l _ n o\n
n      u| l                                              ^~~~l
 dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s1angle.h::61828::
64In file included from :../src/s2/s2point.h :27warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :61867 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
L/usr/local/clang/include/absl/strings/cord.h_:I480N:T39E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_X(  t480r | y _ e m pulsaicneg,  ptoriyn_teemrp l=a cceo_nismtp lv,a lcuoen_stty p&e,*  faablssle_)n;o
n      n| u                                                               ^l
l;/usr/local/clang/include/absl/container/internal/btree_container.h
:      596| :                                      ^9
: /usr/local/clang/include/absl/base/nullability.hnote: :macro 'ABSL_INTERNAL_X' defined here241
:22:   note: 596expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee fAiBnSeL _aIbNsTlE_RnNoAnLn_uXl(lF u_nNco,n nCuallll
e      e| ,                     ^ 
KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkI/usr/local/clang/include/absl/container/internal/btree_container.ht:e618r:a3t:o rwarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
ord_  i618n | t e rAnBaSlL:_:ICNoTrEdRRNeApL*_ Xa(btsrly__neomnpnlualcle ,t rterey)_;e
m      p| l                                                   ^a
ce/usr/local/clang/include/absl/base/nullability.h_:i241m:p22l:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | &#,d effailnsee )a;b
s      l| _  ^n
on/usr/local/clang/include/absl/container/internal/btree_container.hn:u611l:l52 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l611
 |        |                       ^ 
       ABSL_INTERNAL_AIn file included from Ts2/s2crossing_edge_query.ccT:R18I:
BIn file included from U../src/s2/s2crossing_edge_query.hT:E31_:
CIn file included from A../src/s2/s2padded_cell.hP:T23U:
RIn file included from E../src/s2/s2cell_id.hD:_43B:
YIn file included from (../src/s2/s1angle.ht:h28i:
sIn file included from )../src/s2/s2point.h):,27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 504 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
\
        504|  |                                                    ^ 
  /usr/local/clang/include/absl/container/internal/common.h :e32x:p9l:i cnote: imacro 'ABSL_INTERNAL_IF_false' defined heret
 Ch   u32n | k#Idteefrianteo rA(BcSoLn_sItN TCEoRrNdA*L _aIbFs_lf_anlosnen(uilfl_ scaotrids)f;i
e      d| ,                                       ^ 
../usr/local/clang/include/absl/base/nullability.h.:)241 :_22_:V Anote: _expanded from macro 'absl_nonnull'A
RG  S241_ | _#
d      e| f        ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2closest_point_query.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2closest_point_query.h27::
29In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2closest_point_query_base.h23::
39In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2point_index.h67::
27In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h29::
67:
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h507::61943::63 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    507619 |  |      A BvSoLi_dI NITnEiRtNTArLe_eX((ctorryd__eimnptlearcnea,l :t:rCyo_redmRpelpa*c ea_bismlp_ln,o ncnounlslt  t&r,e et)r;u
e      )| ;                                          ^

      | /usr/local/clang/include/absl/base/nullability.h                                                              ^:
241:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 596:note: 9expanded from macro 'absl_nonnull':
 note:   macro 'ABSL_INTERNAL_X' defined here241
 | #d  e596f | i#ndee faibnsel _AnBoSnLn_uIlNlT E_RNNoAnLn_uXl(lF
u      n| c                     ^,
 Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_/usr/local/clang/include/absl/container/internal/btree_container.h :=619 :n3u:l lwarning: ppassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
r;
        | 619                                  ^ | 
  /usr/local/clang/include/absl/base/nullability.hA:B257S:L23_:I Nnote: Texpanded from macro 'absl_nullable'E
RN  A257L | _#Xd(etfriyn_ee mapblsalc_en,u ltlrayb_leem p_lNauclel_aibmlpel
,       | c                      ^o
nst &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) In file included from is2/s2crossing_edge_query.ccf:_18s:
aIn file included from t../src/s2/s2crossing_edge_query.hi:s31f:
iIn file included from e../src/s2/s2padded_cell.hd:
23      :
| In file included from         ^../src/s2/s2cell_id.h
:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2closest_point_query.cc582::1837:
:In file included from  ../src/s2/s2closest_point_query.h:warning: 29:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_point_query_base.h:39:
In file included from ../src/s2/s2point_index.h  :58227 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67e:
x/usr/local/clang/include/absl/container/internal/btree_container.hp:l619i:c3i:t  warning: C'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
unkRa  n619g | e ( cAoBnSsLt_ ICNoTrEdR*N AaLb_sXl(_tnroyn_neumlpll accoer,d )t r:y _ceomrpdl_a(cceo_ridm)p l{,} 
c      o| n                                    ^s
t /usr/local/clang/include/absl/base/nullability.h&:,241 :t22r:u enote: )expanded from macro 'absl_nonnull';

      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f611i:n47e:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  o611n | n u l l   _ N o n n uAlBlS
L      _| I                     ^N
TERNAL_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2/s2crossing_edge_query.cc):,18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
\In file included from 
../src/s2/s2coder.h      :| 23                                              ^~~~:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No/usr/local/clang/include/absl/container/internal/btree_container.hn:n620u:l59l:
       | warning:                      ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&,In file included from  s2/s2crossing_edge_query.ccf:a18l:
sIn file included from e../src/s2/s2crossing_edge_query.h):;31
:
      In file included from | ../src/s2/s2padded_cell.h                                                          ^:
23:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2cell_id.h::59643::
9In file included from :../src/s2/s1angle.h :28note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h596: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
L/usr/local/clang/include/absl/strings/cord.h_:I641N:T33E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_X(  F641u | n c ,   Cuaslilnege ,p oKiQnutaelr,  =K Vcaolnuset,  c.h.a.r)*   a b s l _ n o n n u l l ; 
        |                                  ^ 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :        ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2cell_id.h::62043::
3In file included from :../src/s2/s1angle.h :28warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h  :62023 | :
 In file included from  /usr/local/clang/include/absl/status/status.hA:B67S:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hI:N29T:
E/usr/local/clang/include/absl/strings/cord.hR:N655A:L39_:X (warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
y_e  m655p | l a c e ,e xtprlyi_ceimtp lCahcaer_Iitmeprla,t o&r&(,c ofnaslts eC)o;r
d      *|    ^a
bs/usr/local/clang/include/absl/container/internal/btree_container.hl:_611n:o52n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 co  r611d | ) 
        |                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| ,                     ^ 
                         \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define In file included from As2/s2crossing_edge_query.ccB:S18L:
_In file included from I../src/s2/s2crossing_edge_query.hN:T31E:
RIn file included from N../src/s2/s2padded_cell.hA:L23_:
IIn file included from F../src/s2/s2cell_id.h_:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44:f warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
se(i  f667_ | s a tsitsaftiiecd ,C o.r.d. )A d_v_aVnAc_eAARnGdSR_e_a
d      (| C        ^h
arIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2closest_point_query.ccd:e18f:
iIn file included from n../src/s2/s2closest_point_query.he: 29a:
bIn file included from s../src/s2/s2closest_point_query_base.hl:_39n:
oIn file included from n../src/s2/s2point_index.hn:u27l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u621l:l58
:       | warning:                      ^
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(trIn file included from ys2/s2crossing_edge_query.cc_:e18m:
pIn file included from l../src/s2/s2crossing_edge_query.ha:c31e:
,In file included from  ../src/s2/s2padded_cell.ht:r23y:
_In file included from e../src/s2/s2cell_id.hm:p43l:
aIn file included from c../src/s2/s1angle.he:_28i:
mIn file included from p../src/s2/s2point.hl:,27 :
&In file included from &../src/s2/s2coder.h,: 23t:
rIn file included from u/usr/local/clang/include/absl/status/status.he:)67;:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                                                         ^29
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/btree_container.h::674596::379::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]macro 'ABSL_INTERNAL_X' defined here

    596674 |  | # d esftiantei cA BvSoLi_dI NATdEvRaNnAcLe_(XC(hFaurnIct,e rCaatIn file included from los2/s2closest_cell_query.cclr:e*18e :
,aIn file included from  b../src/s2/s2closest_cell_query.hKs:Ql32u_:
anIn file included from lo../src/s2/s2closest_cell_query_base.h,n: n33Ku:
VlIn file included from al/usr/local/clang/include/absl/container/btree_set.hl :ui65et:
,,In file included from   /usr/local/clang/include/absl/container/internal/btree.h.s:.i70.z:
)eIn file included from  _/usr/local/clang/include/absl/container/internal/layout.h t:  198 n:
 _ b/usr/local/clang/include/absl/strings/str_cat.h y: t501 e: s32 ): ;  
warning:        type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
                                     ^ 
    /usr/local/clang/include/absl/base/nullability.h :  \241501
: |       22v| :o        ^ i
note: dexpanded from macro 'absl_nonnull' 
Ap  p241e | n#ddPeifeicnees (asbtsdl:_:nsotnrniunlgl*  _aNbosnln_unloln
n      u| l                     ^l
 dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |  In file included from  s2/s2crossing_edge_query.ccA:B18S:
LIn file included from _../src/s2/s2crossing_edge_query.hI:N31T:
EIn file included from R../src/s2/s2padded_cell.hN:A23L:
_In file included from X../src/s2/s2cell_id.h(:t43r:
yIn file included from _../src/s2/s1angle.he:m28p:
lIn file included from a../src/s2/s2point.hc:e27,:
 In file included from t../src/s2/s2coder.hr:y23_:
eIn file included from m/usr/local/clang/include/absl/status/status.hp:l67a:
cIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h_:i29m:
p/usr/local/clang/include/absl/strings/cord.hl:,730 :&36&:,  warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue);  
730       | |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.he:x611p:l52i:c inote: texpanded from macro 'ABSL_INTERNAL_X' 
Cha  r611R | a n g e ( c o n s t  ACBoSrLd_*I NaTbEsRlN_AnLo_nAnTuTlRlI BcUoTrEd_)C A:P TcUoRrEdD__(BcYo(rtdh)i s{)})
,       |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n31u:l9l:  _note: Nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   31 | #define ABSL_INTERNALl_lI
F      _| t                     ^r
ue(if_satisfied, ...) if_satisfied
      | In file included from         ^s2/s2crossing_edge_query.cc
:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2closest_point_query.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2closest_point_query.h../src/s2/s2coder.h::2923:
:
In file included from In file included from ../src/s2/s2closest_point_query_base.h/usr/local/clang/include/absl/status/status.h::3967:
:
In file included from In file included from ../src/s2/s2point_index.h/usr/local/clang/include/absl/status/internal/status_internal.h::2729:
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/cord.h::67736:
:17/usr/local/clang/include/absl/container/internal/btree_container.h:: 621:warning: 3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]736
 |       c621o | n s tA BCSoLr_dI*N TaEbRsNlA_Ln_oXn(nturlyl_ ecmoprlda_c;e
,       | t                ^r
y_/usr/local/clang/include/absl/base/nullability.he:m241p:l22a:c enote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #&d&e,f itnreu ea)b;s
l      _| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
nnu/usr/local/clang/include/absl/container/internal/btree_container.hl:l611 :_47N:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll
        | 611                     ^ | 
          ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o622n:n3u:l lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
Nonn  u622l | l 
       A| B                     ^S
L_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __In file included from Vs2/s2crossing_edge_query.ccA:_18A:
RIn file included from G../src/s2/s2crossing_edge_query.hS:_31_:

In file included from       ../src/s2/s2padded_cell.h| :        ^23
:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTestIn file included from is2/s2closest_cell_query.ccn:g18(:

In file included from       ../src/s2/s2closest_cell_query.h| :                          ^32
:
In file included from ../src/s2/s2closest_cell_query_base.h:/usr/local/clang/include/absl/base/nullability.h33::
257In file included from :/usr/local/clang/include/absl/container/btree_set.h23::65 :
In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'absl_nullable':
70:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h257: | 198#:
de/usr/local/clang/include/absl/strings/str_cat.hf:i635n:e36 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nul  l635a | bilnel i_nNeu lvloaibdl eS
t      r| A                      ^p
penIn file included from ds2/s2closest_point_query.cc(:s18t:
dIn file included from :../src/s2/s2closest_point_query.h::s29t:
rIn file included from i../src/s2/s2closest_point_query_base.hn:g39*:
 In file included from a../src/s2/s2point_index.hb:s27l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l624): 3{:} 
warning:       | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                   ^

/usr/local/clang/include/absl/base/nullability.h  :624241 | : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nXe( tarbys_le_mnpolnancuel,l  t_rNyo_nenmupllla
c      e| _                     ^h
int_impl, const &, true,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2closest_cell_query.cc::61118::
52In file included from :../src/s2/s2closest_cell_query.h :32note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2closest_cell_query_base.h:33:
In file included from   /usr/local/clang/include/absl/container/btree_set.h611: | 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198A:
B/usr/local/clang/include/absl/strings/str_cat.hS:L636_:I29N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_A  T636TIn file included from  | Rs2/s2crossing_edge_query.ccvI:oB18iU:
dTIn file included from  E../src/s2/s2crossing_edge_query.hS_:tC31rA:
APIn file included from pT../src/s2/s2padded_cell.hpU:eR23nE:
dDIn file included from (_../src/s2/s2cell_id.hsB:tY43d(:
:tIn file included from :h../src/s2/s1angle.hsi:ts28r):
i)In file included from n,../src/s2/s2point.hg :* 27  :
a In file included from b ../src/s2/s2coder.hs :l 23_ :
n In file included from o /usr/local/clang/include/absl/status/status.hn :n 67u :
l In file included from l /usr/local/clang/include/absl/status/internal/status_internal.h  :d 29e :
s /usr/local/clang/include/absl/strings/cord.h t: ,927  : c43 o: n  swarning: \ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 
      A| l                                                   ^p
ha  /usr/local/clang/include/absl/container/internal/common.hN927:u | 31m :& 9  :a  ) note: ; macro 'ABSL_INTERNAL_IF_true' defined here
 
       |                              ^    
31  |  #/usr/local/clang/include/absl/base/nullability.h d: e241 f: i22 n: e   note:  Aexpanded from macro 'absl_nonnull' B
 S L   _241 I |  N# Td Ee Rf Ni An Le _ CIaoFbr_sdtlRr_eunpeo*(n inafub_lsslla _t_niNusolfnlinaeubdll,le 
 .      r.| e.                     ^p)
) ;i
f      _| s                                          ^a
tis/usr/local/clang/include/absl/base/nullability.hf:i257e:d23
:       | note:         ^expanded from macro 'absl_nullable'

In file included from   s2/s2closest_cell_query.cc257: | 18#:
dIn file included from e../src/s2/s2closest_cell_query.hf:i32n:
eIn file included from  ../src/s2/s2closest_cell_query_base.haIn file included from :bs2/s2closest_point_query.cc33s::
l18In file included from _:
/usr/local/clang/include/absl/container/btree_set.hnIn file included from :u../src/s2/s2closest_point_query.h65l::
l29In file included from a:
/usr/local/clang/include/absl/container/internal/btree.hbIn file included from :l../src/s2/s2closest_point_query_base.h70e::
 39In file included from _:
/usr/local/clang/include/absl/container/internal/layout.hNIn file included from :u../src/s2/s2point_index.h198l::
l27/usr/local/clang/include/absl/strings/str_cat.ha:
:bIn file included from 637l/usr/local/clang/include/absl/container/btree_map.h:e:29
67:      :
 | /usr/local/clang/include/absl/container/internal/btree_container.hwarning:                       ^:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
624
:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  637 | v  o624i | d   SAtBrSALp_pIeNIn file included from nTs2/s2crossing_edge_query.ccdE:(R18sN:
tAIn file included from dL../src/s2/s2crossing_edge_query.h:_::X31s(:
ttIn file included from rr../src/s2/s2padded_cell.hiy:n_23ge:
*mIn file included from  p../src/s2/s2cell_id.hal:ba43sc:
leIn file included from _,../src/s2/s1angle.hn :ot28nr:
nyIn file included from u_../src/s2/s2point.hle:lm27 p:
dlIn file included from ea../src/s2/s2coder.hsc:te23,_:
 hIn file included from ci/usr/local/clang/include/absl/status/status.hon:nt67s_:
tiIn file included from  m/usr/local/clang/include/absl/status/internal/status_internal.hAp:ll29p,:
h /usr/local/clang/include/absl/strings/cord.hac:No929un:ms26&t:   a&warning: ,,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 
      t| r                            ^  u
929e | ,/usr/local/clang/include/absl/base/nullability.h 
:       241 | :   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~22v
:o i  note: d625expanded from macro 'absl_nonnull'  | 
S w a   p241 ( |  I# nd le if ni en Re e  pa *b  s al b_ sncloo_nnnnsoutnl_nliu tl_elNr oarnthnosur)l(;lh

i            n| | t                         ^                     ^)

 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | C#OdMeMfAi)n;e
       In file included from a| s2/s2closest_cell_query.ccb                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:s
18l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2closest_cell_query.ho::n61132n::
u47In file included from l:../src/s2/s2closest_cell_query_base.hl : 33note: _:
expanded from macro 'ABSL_INTERNAL_X'NIn file included from 
o/usr/local/clang/include/absl/container/btree_set.hn:n65  u:
611lIn file included from  | l/usr/local/clang/include/absl/container/internal/btree.h 
:       70 | :
                      ^In file included from  
/usr/local/clang/include/absl/container/internal/layout.h : 198 :
 /usr/local/clang/include/absl/strings/str_cat.h :A639B:S29L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA  L639_ | AvToTiRdI BIn file included from SUs2/s2crossing_edge_query.cctT:rE18A_:
pCIn file included from pA../src/s2/s2crossing_edge_query.heP:nT31dU:
(RIn file included from sE../src/s2/s2padded_cell.htD:d_23:B:
:YIn file included from s(../src/s2/s2cell_id.htt:rh43ii:
nsIn file included from g)../src/s2/s1angle.h*): ,28a :
b In file included from s ../src/s2/s2point.hl :_ 27n :
o In file included from n ../src/s2/s2coder.hn :u 23l :
l In file included from   /usr/local/clang/include/absl/status/status.hd :e 67s :
t In file included from , /usr/local/clang/include/absl/status/internal/status_internal.h  :c 29o :
n /usr/local/clang/include/absl/strings/cord.hs :t 932  :A 17l\:p
 h      warning: a| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N                                              ^~~~
u
m&   932a | , 
        |                              ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea bdsalt_an(o)n ncuolnls t_;N
o      n| n                ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      257| :                     ^23
: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullableIn file included from  s2/s2closest_cell_query.cc_:N18u:
lIn file included from l../src/s2/s2closest_cell_query.ha:b32l:
eIn file included from 
../src/s2/s2closest_cell_query_base.h      :| 33                      ^:

In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: In file included from warning: s2/s2crossing_edge_query.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2crossing_edge_query.h:  31641:
 | In file included from v../src/s2/s2padded_cell.ho:i23d:
 In file included from S../src/s2/s2cell_id.ht:r43A:
pIn file included from p../src/s2/s1angle.he:n28d:
(In file included from s../src/s2/s2point.ht:d27::
:In file included from s../src/s2/s2coder.ht:r23i:
nIn file included from g/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
o/usr/local/clang/include/absl/strings/cord.hn:n934u:l31l:  dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
t,   c934o | n s t   Avlopihda Nsuemt&_ daa,t/usr/local/clang/include/absl/container/internal/btree_container.h
a:      (626| c:o                            ^3n
:s t/usr/local/clang/include/absl/base/nullability.hwarning:  :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c241
h:a22r:  * 626 note:  | aexpanded from macro 'absl_nonnull' b
 sAl  B_241Sn | Lu#_ldIleNafTbiElnReeN  AdaLab_tsXal(,_t nrsoyin_zneeum_lptll  an_c)Ne;o,
n       nt| ur                              ^ly
l_
/usr/local/clang/include/absl/base/nullability.he      :m| 257p                     ^:l
23a:c enote: _expanded from macro 'absl_nullable'h
in  t257_ | i#mdpelf,i n&e& ,a bfsall_sneu,In file included from l
s2/s2closest_cell_query.ccl      :a| 18b  ^:
l
In file included from e../src/s2/s2closest_cell_query.h :/usr/local/clang/include/absl/container/internal/btree_container.h_32:N:
611uIn file included from :l../src/s2/s2closest_cell_query_base.h52l::a33 b:
note: lIn file included from expanded from macro 'ABSL_INTERNAL_X'e/usr/local/clang/include/absl/container/btree_set.h

:      65| :
                        ^In file included from 611
/usr/local/clang/include/absl/container/internal/btree.h | : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 /usr/local/clang/include/absl/strings/str_cat.h : 646A:B36S:L In file included from _warning: s2/s2crossing_edge_query.ccItype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:N
18T:
EIn file included from R  ../src/s2/s2crossing_edge_query.hN646:A | 31Li:
_nAIn file included from lT../src/s2/s2padded_cell.hiT:nR23eI:
 BIn file included from vU../src/s2/s2cell_id.hoT:iE43d_:
 CIn file included from SA../src/s2/s1angle.htP:rT28AU:
pRIn file included from pE../src/s2/s2point.heD:n_27dB:
(YIn file included from s(../src/s2/s2coder.htt:dh23:i:
:sIn file included from s)/usr/local/clang/include/absl/status/status.ht):r,67i :
n In file included from g /usr/local/clang/include/absl/status/internal/status_internal.h* :  29a :
b /usr/local/clang/include/absl/strings/cord.hs :l 935_ :n 11o :n  n warning: u type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
l   d   e 935s  | t  ,     c  o cn\hs
at      r | *A                                                   ^ l
apbh/usr/local/clang/include/absl/container/internal/common.hsa:lN32_u:nm9o&:n  nanote: u,macro 'ABSL_INTERNAL_IF_false' defined herel

l       | s                                      ^e32
t | _#/usr/local/clang/include/absl/base/nullability.hdd:ae241tf:ai22(n:se i note: zAexpanded from macro 'absl_nonnull'eB
_StL   _241nI | )N#;Td Ee Rf/Ni/An LeW_ IaFb_sfla_lnrsoient(neiu fld_las ta_atN iotsnofn iutelhdle,
        r.| e.                     ^s.
u)l t_
_      V| A          ^_
AR/usr/local/clang/include/absl/base/nullability.hG:S241_:_22
:       | note:         ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 257s2/s2closest_point_query.cc::2318::
 In file included from ../src/s2/s2closest_point_query.hnote: :expanded from macro 'absl_nullable'29
:
In file included from ../src/s2/s2closest_point_query_base.h  :25739 | :
#In file included from d../src/s2/s2point_index.he:f27i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :a67b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_628n:u3l:l awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
e _N  u628l | l a bAlBeS
L      _| I                      ^N
TERNAL_X(try_emplacIn file included from es2/s2crossing_edge_query.cc,: 18t:
rIn file included from y../src/s2/s2crossing_edge_query.h_:e31m:
pIn file included from l../src/s2/s2padded_cell.ha:c23e:
_In file included from h../src/s2/s2cell_id.hi:n43t:
_In file included from i../src/s2/s1angle.hm:p28l:
,In file included from  ../src/s2/s2point.h&:&27,:
 In file included from t../src/s2/s2coder.hr:u23e:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67  ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
611:/usr/local/clang/include/absl/strings/cord.h52::938 :35note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  611 |     938  |          a b sAlB:S:Lc_oIrNdT_EiRnNtAeLr_nAaTlT:R:ICBoUrTdER_eCpA*P TaUbRsElD__nBoYn(ntuhlils )a)s,_ t r e e ( )   c o n s t ; 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                                                    ^  
241 | #/usr/local/clang/include/absl/container/internal/common.hd:e31f:i9n:e  note: amacro 'ABSL_INTERNAL_IF_true' defined hereb
sl_   n31o | n#nduelfli n_eN oAnBnSuLl_lI
N      T| E                     ^R
NAL_IF_true(iIn file included from fs2/s2crossing_edge_query.cc_:s18a:
tIn file included from i../src/s2/s2crossing_edge_query.hs:f31i:
eIn file included from d../src/s2/s2padded_cell.h,: 23.:
.In file included from .../src/s2/s2cell_id.h): 43i:
fIn file included from _../src/s2/s1angle.hs:a28t:
iIn file included from s../src/s2/s2point.hf:i27e:
dIn file included from 
../src/s2/s2coder.h      :| 23        ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2closest_point_query.cc
:18:
In file included from   ../src/s2/s2closest_point_query.h939: | 29 :
 In file included from  ../src/s2/s2closest_point_query_base.h :c39o:
nIn file included from s../src/s2/s2point_index.ht: 27c:
hIn file included from a/usr/local/clang/include/absl/container/btree_map.hr:*67 :
a/usr/local/clang/include/absl/container/internal/btree_container.hb:s628l:_3n:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll as  _628c | h a rAsB(S)L _cIoNnTsEtR;N
A      L| _                ^X
(t/usr/local/clang/include/absl/base/nullability.hr:y241_:e22m:p lnote: aexpanded from macro 'absl_nonnull'c
e,   241t | r#yd_eefmipnlea caeb_shli_nnto_ninmuplll,  _&N&o,n nturlule
,      
|                            ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |              In file included from  s2/s2crossing_edge_query.cc : 18 :
 In file included from c../src/s2/s2crossing_edge_query.ho:n31s:
tIn file included from _../src/s2/s2padded_cell.hi:t23e:
rIn file included from a../src/s2/s2cell_id.ht:o43r:
(In file included from h../src/s2/s1angle.hi:n28t:
)In file included from  ../src/s2/s2point.hA:B27S:
LIn file included from _../src/s2/s2coder.hI:N23T:
EIn file included from R/usr/local/clang/include/absl/status/status.hN:A67L:
_In file included from C/usr/local/clang/include/absl/status/internal/status_internal.hO:M29M:
A/usr/local/clang/include/absl/strings/cord.h):;941
:      35| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47  :941  | note:  expanded from macro 'ABSL_INTERNAL_X' 
  ab  s611l | : : c o r d _ i n t eArBnSaLl_:I:NCToErRdNRAeLp_*A TaTbRsIlB_UnTuEl_lCaAbPlTeU RcElDe_aBrY(()t;h
i      s| )                                  ^)
, /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l\_
n      u| l                                              ^~~~l
able _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:/usr/local/clang/include/absl/container/internal/btree_container.h43::
638In file included from :../src/s2/s1angle.h63::28 :
In file included from warning: ../src/s2/s2point.h:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]27
:
In file included from ../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h638: | 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
c/usr/local/clang/include/absl/strings/cord.ho:n957s:t27 :k ewarning: y_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
rg<K  >957  | & k   A BvSoLi_dI NSTeEtRTNrAeLe_(ACToTrRdIRBeUpT*E _aCbAsPlT_UnRoEnDn_uBlYl( trheips,) )c
o      n| s                                                              ^~~~t
 CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^/usr/local/clang/include/absl/container/internal/btree_container.h
:648:/usr/local/clang/include/absl/base/nullability.h7::257 :23warning: : 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]note: 
expanded from macro 'absl_nullable'
    257648 |  | # d e f i n et haibss)l)_ nAuBlSlLa_bAlTeT R_INBuUlTlEa_bLlIeF
E      T| I                      ^M
E_BOUND {
      |       ^~~~
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2edge_clipping.ccl:l18 :
_In file included from N../src/s2/s2edge_clipping.ho:n34n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  In file included from 212s2/s2crossing_edge_query.cc | : 18 :
uIn file included from s../src/s2/s2crossing_edge_query.hi:n31g:
 In file included from p../src/s2/s2padded_cell.ho:i23n:
tIn file included from e../src/s2/s2cell_id.hr: 43=:
 In file included from T../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
uIn file included from l../src/s2/s2coder.hl:a23b:
iIn file included from l/usr/local/clang/include/absl/status/status.hi:t67y:
_In file included from u/usr/local/clang/include/absl/status/internal/status_internal.hn:k29n:
o/usr/local/clang/include/absl/strings/cord.hw:n1061;:
34      :|                       ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h: 2891061: | 34 :  vnote: oexpanded from macro 'absl_nullability_unknown'i
d C  o289p | y#TdoeAfrirnaey SalboswlP_antuhl(lcahbairl*i tayb_suln_knnoonwnnu l_lN udlslt_)u ncsopnescti;f
i      e| d                                 ^

      | /usr/local/clang/include/absl/base/nullability.h                                 ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2edge_clipping.ccn:e18 :
aIn file included from b../src/s2/s2edge_clipping.hs:l34_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_op.h      :| 41                     ^:

In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabiliIn file included from ts2/s2crossing_edge_query.ccy:_18u:
nIn file included from k../src/s2/s2crossing_edge_query.hn:o31w:
nIn file included from  ../src/s2/s2padded_cell.h_:N23u:
lIn file included from l../src/s2/s2cell_id.h_:u43n:
sIn file included from p../src/s2/s1angle.he:c28i:
fIn file included from i../src/s2/s2point.he:d27
:
      In file included from | ../src/s2/s2coder.h                                 ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   faIn file included from ls2/s2crossing_edge_query.ccs:e18,:
 In file included from f../src/s2/s2crossing_edge_query.ha:l31s:
eIn file included from )../src/s2/s2padded_cell.h;:
23      :
| In file included from                               ^../src/s2/s2cell_id.h
:43:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s1angle.h::49628::
9In file included from :../src/s2/s2point.h :27note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h496: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :A1222B:S52L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA L1222_ | Xi(nFluinnce,  vCoaildl eCeo,r dK:Q:uIanll,i nMeQRueapl:,: SKwVaapl(uCeo,r dM:V:aIlnulei,n e.R.e.p)*   a b s l\_
n      o| n        ^n
ull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2crossing_edge_query.cc::52218::
3In file included from :../src/s2/s2crossing_edge_query.h :31warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2padded_cell.h
:23:
In file included from ../src/s2/s2cell_id.h:  43522:
 | In file included from  ../src/s2/s1angle.h :A28B:
SIn file included from L../src/s2/s2point.h_:I27N:
TIn file included from E../src/s2/s2coder.hR:N23A:
LIn file included from _/usr/local/clang/include/absl/status/status.hX:(67i:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.he:r29t:
_/usr/local/clang/include/absl/strings/cord.ho:r1230_:a20s:s iwarning: gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
, in s1230e | ritn_loirn_ea scsoingsnt_ icmhpalr,*  caobnsslt_ n&u,l lcaobnlset  C&o,r
d      :| :  ^I
nl/usr/local/clang/include/absl/container/internal/btree_container.hi:n509e:R52e:p :note: :expanded from macro 'ABSL_INTERNAL_X'd
ata  (509) |   c o n s t   { 
        | A                   ^B
SL_/usr/local/clang/include/absl/base/nullability.hI:N257T:E23R:N Anote: Lexpanded from macro 'absl_nullable'_
AT  T257R | I#BdUeTfEi_nCeA PaTbUsRlE_Dn_uBlYl(atbhlies )_)N,u l l a b l e 
        |                        ^ 
             \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IIn file included from Fs2/s2crossing_edge_query.cc_:f18a:
lIn file included from s../src/s2/s2crossing_edge_query.he:(31i:
fIn file included from _../src/s2/s2padded_cell.hs:a23t:
iIn file included from s../src/s2/s2cell_id.hf:i43e:
dIn file included from ,../src/s2/s1angle.h :.28.:
.In file included from )../src/s2/s2point.h :_27_:
VIn file included from A../src/s2/s2coder.h_:A23R:
GIn file included from S/usr/local/clang/include/absl/status/status.h_:_67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h        ^:
29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_edge_query.cc:18:
 In file included from 1234../src/s2/s2closest_edge_query.h | :i34n:
lIn file included from i../src/s2/s2closest_edge_query_base.hn:e32 :
cIn file included from o/usr/local/clang/include/absl/container/btree_set.hn:s66t:
 /usr/local/clang/include/absl/container/internal/btree_container.hc:h522a:r3*:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_n  o522n | n u lAlB SCLo_rIdN:T:EIRnNlAiLn_eXR(eipn:s:earst__cohra_rass(s)i gcno,n sitn s{e
r      t| _                   ^o
r_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n _note: iexpanded from macro 'absl_nonnull'm
pl  ,241  | c#odnesfti n&e,  acbosnls_tn o&n,n
u      l| l  ^ 
_N/usr/local/clang/include/absl/container/internal/btree_container.ho:n511n:In file included from u52s2/s2convex_hull_query.ccl::l 26
:
note:       In file included from expanded from macro 'ABSL_INTERNAL_X'| ../src/s2/s2convex_hull_query.h
                     ^:
25:
  In file included from 511../src/s2/s2cap.h | : 31 :
 In file included from  ../src/s2/s1chord_angle.h : 31 :
 In file included from  ../src/s2/s2pointutil.h :A27B:
SL../src/s2/util/math/matrix3x3.h_:I276N:T5E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_ATTR  I276B | U T E _ CSA2P_TCUHREECDK__BNYE(In file included from (tds2/s2crossing_edge_query.cceh:ti18,s:
 )In file included from )V../src/s2/s2crossing_edge_query.h)T: y 31p :
e In file included from ( ../src/s2/s2padded_cell.h0 :) 23 ):
  In file included from  <../src/s2/s2cell_id.h <:  "43  :
 CIn file included from  a ../src/s2/s1angle.hn : '28 t:
  In file included from  i../src/s2/s2point.h n: v27 e:
\rIn file included from 
s../src/s2/s2coder.h      e:| .23                                                   ^ :

DIn file included from e/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/common.ht::e6732r:
:mIn file included from 9i/usr/local/clang/include/absl/status/internal/status_internal.h:n: a29note: n:
macro 'ABSL_INTERNAL_IF_false' defined heret/usr/local/clang/include/absl/strings/cord.h
 :=1239    :32038 | .#:"d ;ewarning: 
ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      i
| n    ^e
  A1239B | ../src/s2/base/logging.hiS:nL37_l:Ii21Nn:eT  Enote: aRexpanded from macro 'S2_CHECK_NE'bN
sAlL   :_37:I | cF#o_drfedaf_liisnneet( eiSrf2n__asClaH:tE:iCCsKof_riNdeERd e,Cp H*E Ca.Kb._s.Nl)E_ 
n_      o_| nVnIn file included from                     ^s2/s2coords.ccAu
l:l_18/usr/local/clang/include/absl/log/check.h A:
:CRIn file included from 120oGr../src/s2/s2coords.h:Sd:3_:108:_::
I 
In file included from n      note: ../src/s2/s2point.hl| expanded from macro 'CHECK_NE'        ^:i

27n:
e  In file included from R120../src/s2/s2coder.he | p: :23 ::
AaIn file included from Bs/usr/local/clang/include/absl/status/status.hS_:Lt_67rL:
eOIn file included from eG/usr/local/clang/include/absl/status/internal/status_internal.h(_:)I29
N:
      TIn file included from | E/usr/local/clang/include/absl/strings/cord.h                                     ^R:
82:
NIn file included from /usr/local/clang/include/absl/base/nullability.hA/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:L:241_23:C:
22HIn file included from :E/usr/local/clang/include/absl/crc/crc32c.h C:note: K32expanded from macro 'absl_nonnull'_:
In file included from 
NIn file included from s2/s2closest_edge_query.ccE  /usr/local/clang/include/absl/strings/str_format.h:_241:18I | M84:
#P:
In file included from dLeIn file included from f../src/s2/s2closest_edge_query.h(/usr/local/clang/include/absl/strings/internal/str_format/bind.hi:(:n34v29e:
a:
 In file included from la/usr/local/clang/include/absl/strings/internal/str_format/parser.hb../src/s2/s2closest_edge_query_base.h1:s:)227l32,:_:
 11nIn file included from o#:/usr/local/clang/include/absl/container/btree_set.hnv :naull66lwarning: 1:
 'enable_if' is a clang extension [-Wgcc-compat],/usr/local/clang/include/absl/container/internal/btree_container.h_
 :N(525ov:n  a30n227l:2u |  )l warning: ,l passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
#
v       a |    l                     ^2 525 
) |  
         e| n   ^ a
b l /usr/local/clang/include/absl/log/internal/check_impl.he :_ 51i :f (3 s: t  rnote:  _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'f o
 r m a   ft51a_ | li ns etA,Be StrLrn_uLaeOl):In file included from G;:s2/s2crossing_edge_query.ccE_
I:Nn      s18T| EuR:
N                             ^rIn file included from eA
L../src/s2/s2crossing_edge_query.hC/usr/local/clang/include/absl/container/internal/btree_container.h_:o:C31n496H:
s:EIn file included from t9eCx../src/s2/s2padded_cell.h:Kp_r:( fO23Pnote: (o:
rmacro 'ABSL_INTERNAL_X' defined hereCIn file included from m
h../src/s2/s2cell_id.hae:t  c43)496,k:
_ | N
In file included from #Ed      e../src/s2/s1angle.h,| f          ^: i
28!n:
=eIn file included from ,  AvB../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/str_format/parser.haS:L:l27_2291:
,I:In file included from  N11T../src/s2/s2coder.hv:E:a R23lwarning: N:
A1'enable_if' is a clang extension [-Wgcc-compat]In file included from L__
/usr/local/clang/include/absl/status/status.htX:e(67  xF:
229tuIn file included from n | ,/usr/local/clang/include/absl/status/internal/status_internal.h c ,: vC 29aa l:
ll 2/usr/local/clang/include/absl/strings/cord.h,e : e 1245 v , : a l382eKn:a_Qt ebuwarning: xaltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]tl)e

,_       i| f  ^M (
sQt1245/usr/local/clang/include/absl/log/internal/check_op.hur | :ia_68fnol:lr,22im :Kna Vetnote: _ai nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'tlau
eebr,nsa   l lM68::V | ::ac oVla rwuhlideild_,ienF  .t.o.(ecr)mro ant Inms t a p ll\:c:<
ChCa      r*. .o| a.r>        ^bd(
fsRloe_rpmn*aut )lal,ba
sb      ll| _e          ^n 
ualblsalb_lleo gC_oirndt:e:rInnalli_ncehReecpk:_:otpr_eree(s)u
l      t|                                       ^ 
      /usr/local/clang/include/absl/base/nullability.h : 257 :\23
:       | note:                      ^expanded from macro 'absl_nullable'

  257/usr/local/clang/include/absl/base/nullability.h | :#257d:e23f:i nnote: eexpanded from macro 'absl_nullable' 
ab  s257l | _#nduelflianbel ea b_sNlu_lnlualbllaeb
l      /usr/local/clang/include/absl/container/internal/btree_container.he| :                       ^524_
N:u3l:l awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
e
      |                         ^524
 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      | In file included from   ^s2/s2convex_hull_query.cc
:26:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :In file included from ../src/s2/s2convex_hull_query.h509s2/s2crossing_edge_query.cc:::255218:
::
In file included from  In file included from ../src/s2/s2cap.h../src/s2/s2crossing_edge_query.hnote: ::expanded from macro 'ABSL_INTERNAL_X'3131
:
:
In file included from In file included from ../src/s2/s1chord_angle.h../src/s2/s2padded_cell.h  ::5093123 | :
:
 In file included from In file included from  ../src/s2/s2pointutil.h../src/s2/s2cell_id.h :: 27 43:
 :
../src/s2/util/math/matrix3x3.h In file included from : ../src/s2/s1angle.h276 :: 28A5:
B:In file included from S ../src/s2/s2point.hL:warning: _27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I:

NIn file included from T../src/s2/s2coder.h../src/s2/base/logging.hE::R2337N:
:AIn file included from 21L/usr/local/clang/include/absl/status/status.h:_: A67note: T:
expanded from macro 'S2_CHECK_NE'TIn file included from 
R/usr/local/clang/include/absl/status/internal/status_internal.hI:   B2937U:
T | /usr/local/clang/include/absl/strings/cord.hE#:_d1258Ce:Af36Pi:Tn Uewarning: R type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ESD
2__BCY H(1258Et | ChiKin_slN)iE)n ,eC  H cE oC rK d_ _N iE n
 t       e|  r                    ^ n
 a l/usr/local/clang/include/absl/log/check.h :: :120 C: o3 r :d  R note: e expanded from macro 'CHECK_NE'p 
F\l
a        t120| * |                                                    ^  
 aAb/usr/local/clang/include/absl/container/internal/common.hBs:Sl32L_:_n9Lo:On Gnnote: _umacro 'ABSL_INTERNAL_IF_false' defined hereIl
NlT
E         R32| N |                                    ^A#
Ld_e/usr/local/clang/include/absl/base/nullability.hCf:Hi241En:Ce22K :_A NBnote: ESexpanded from macro 'absl_nonnull'_L
I_M  IP241NL | T(#E(dRveNafAliL1n_)eI, F a_#bfvsaalll_s1ne,o( ni(nfvu_alslla2 t)_i,Ns of#nivneaudll,2l )
.
      .      .| | )                     ^  ^ 

__/usr/local/clang/include/absl/log/internal/check_impl.hV:A51_:A3R:G Snote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'_

      |         ^   
51 |   ABSL_In file included from Ls2/s2closest_edge_query.ccO:G18_:
IIn file included from N../src/s2/s2closest_edge_query.hT:E34R:
NIn file included from A../src/s2/s2closest_edge_query_base.hL:_32C:
HIn file included from E/usr/local/clang/include/absl/container/btree_set.hC:K66_:
O/usr/local/clang/include/absl/container/internal/btree_container.hP:(524C:h3e:c kwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
E, !  =524, |   v aAlB1S,L _vIaNlT1E_RtNeAxLt_,X (vinsert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2/s2crossing_edge_query.cc511: | 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23A:
BIn file included from S../src/s2/s2cell_id.hL:_43I:
NIn file included from T../src/s2/s1angle.hE:R28N:
AIn file included from L../src/s2/s2point.h_:A27T:
TIn file included from R../src/s2/s2coder.hI:B23U:
TIn file included from E/usr/local/clang/include/absl/status/status.h_:C67A:
PIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hU:R29E:
D/usr/local/clang/include/absl/strings/cord.h_:B1268Y:(51t:h iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
))    1268  |  i n l i n e   v o i d   C o r d : : I n\l
i      n| e                                                   ^R
ep/usr/local/clang/include/absl/container/internal/common.h:::31E:m9p:l anote: cmacro 'ABSL_INTERNAL_IF_true' defined heree
Tre   e31( | C#odredfRienpe*  AaBbSsLl__InNoTnEnRuNlAlL _rIeFp_,t
r      u| e                                                  ^(
if_/usr/local/clang/include/absl/base/nullability.hs:a241t:i22s:f inote: eexpanded from macro 'absl_nonnull'd
,   .241. | .#)d eiffi_nsea taibssfli_eIn file included from ndos2/s2coords.cc
n:      n18| u        ^:
l
In file included from l _../src/s2/s2coords.hN:o108n:
nIn file included from u../src/s2/s2point.hl:l27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2closest_edge_query.ccIn file included from :/usr/local/clang/include/absl/strings/cord.h18::
82In file included from :
../src/s2/s2closest_edge_query.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h34::
23In file included from :
../src/s2/s2closest_edge_query_base.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h32::
32In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/strings/str_format.h66::
84:
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/strings/internal/str_format/bind.h524::1433::11 : warning: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]'enable_if' is a clang extension [-Wgcc-compat]

  143   | 524  |      A B S L _ I NeTnEaRbNlAeL__iXf((isntsre_rfto_romraIn file included from _ts2/s2crossing_edge_query.cca_:si18sn:
itIn file included from ge../src/s2/s2crossing_edge_query.hnr:,n 31ia:
nlIn file included from s:../src/s2/s2padded_cell.he::rE23tn:
_sIn file included from ou../src/s2/s2cell_id.hrr:_e43aC:
soIn file included from sni../src/s2/s1angle.hsgt:ne28_x:
ipIn file included from mr../src/s2/s2point.hp(:ls27,):
 ,In file included from c ../src/s2/s2coder.ho":nc23os:
ntsIn file included from t e/usr/local/clang/include/absl/status/status.h&x:,p67 r:
c In file included from ot/usr/local/clang/include/absl/status/internal/status_internal.hnr:sa29tp:
 "/usr/local/clang/include/absl/strings/cord.h&):,,1275

:            51| | :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~          ^ 

warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]525
 |      1275  |  i n l i n e   v o i d   Cfoarlds:e:,I ntlriunee)R;e
p      :| :                  ~~~~~~~~~~~~E
mpl/usr/local/clang/include/absl/container/internal/btree_container.ha:/usr/local/clang/include/absl/strings/internal/str_format/bind.hc511:e:149T47:r:22e :e note: (warning: expanded from macro 'ABSL_INTERNAL_X'C
ord'enable_if' is a clang extension [-Wgcc-compat]  R
e511p | *     a 149b  | s  l  _  n  o  n  n_Au_BlaSltL t_rrIeiNpbT,uE
tRe      N_| A_                                                  ^L(
_(Ae/usr/local/clang/include/absl/base/nullability.hTn:aTb241Rl:Ie22B_:Ui Tfnote: E(expanded from macro 'absl_nonnull'_s
CtArP  _Tf241Uo | Rr#EmdaDet_f_BiiYnn(ett eharinbsas)ll):_:)n Eo nn n su ul rl e  C_o Nn os nt ne ux pl rl (
 s       )|  ,                     ^ 
 
       |                       ^ 
\
      |                                               ^~~~
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attriIn file included from bs2/s2crossing_edge_query.ccu:t18e:
_In file included from _../src/s2/s2crossing_edge_query.h(:(31e:
nIn file included from a../src/s2/s2padded_cell.hb:l23e:
_In file included from i../src/s2/s2cell_id.hf:(43V:
aIn file included from l../src/s2/s1angle.hi:d28F:
oIn file included from r../src/s2/s2point.hm:a27t:
IIn file included from m../src/s2/s2coder.hp:l23<:
AIn file included from r/usr/local/clang/include/absl/status/status.hg:s67.:
/usr/local/clang/include/absl/container/internal/btree_container.h.In file included from .:/usr/local/clang/include/absl/status/internal/status_internal.h>527:(:29s30):
:,  /usr/local/clang/include/absl/strings/cord.hwarning: ":passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b1282a
:d47 :  f 527o | warning: r type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m a
 t   t  r 1282a  | p i" n) l) i) n
 e        |  v                     ^ o
 itdr uCeo,r df:a:lIsnel)i;n
e      R| e                             ^p
::/usr/local/clang/include/absl/container/internal/btree_container.hS:e496t:T9r:e /usr/local/clang/include/absl/strings/internal/str_format/bind.henote: :(macro 'ABSL_INTERNAL_X' defined here162C
:o22r:  d 496Rwarning:  | e'enable_if' is a clang extension [-Wgcc-compat]#p
d*e fai  bn162se | l  _A nB o Sn Ln __u_IlaNltTt ErrRieNbpuA,tL
e__      X_| ((                                              ^F(
uenn/usr/local/clang/include/absl/base/nullability.hca:,b241 l:Ce22a_:li lfnote: e(expanded from macro 'absl_nonnull'eV
,a   Kl241Qi | ud#aFdloe,fr imMnaQteuI amalpb,ls <lKA_rnVgosan.ln.uu.el>,l(  sM_)V,Na ol"nubneaud,l  fl.o
.r.      m)| a                      ^t  
 t r a\p
"      )| )        ^)

      |                      ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void /usr/local/clang/include/absl/container/internal/btree_container.hC:o526r:d3::: Iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
ineR  e526p | : : SAeBtSTLr_eIeNOTrEERmNpAtLy_(XC(oirndsReerpt*_ oarb_sals_sniuglnl,a bilnes erretp_,o
r      _| a                                                     ^s
si/usr/local/clang/include/absl/base/nullability.hg:n257_:i23m:p lnote: ,expanded from macro 'absl_nullable' 
co  n257s | t# d&e,f icnoen satb s&l,_
n      u| l  ^l
abl/usr/local/clang/include/absl/container/internal/btree_container.he: 509_:N52u:l lnote: aexpanded from macro 'ABSL_INTERNAL_X'b
le
        | 509                      ^ | 
          ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #defiIn file included from ns2/s2crossing_edge_query.cce: 18A:
BIn file included from S../src/s2/s2crossing_edge_query.hL:_31I:
NIn file included from T../src/s2/s2padded_cell.hE:R23N:
AIn file included from L../src/s2/s2cell_id.h_:I43F:
_In file included from t../src/s2/s1angle.hr:u28e:
(In file included from i../src/s2/s2point.hf:_27s:
aIn file included from t../src/s2/s2coder.hi:s23f:
iIn file included from e/usr/local/clang/include/absl/status/status.hd:,67 :
.In file included from ./usr/local/clang/include/absl/status/internal/status_internal.h.:)29 :
i/usr/local/clang/include/absl/strings/cord.hf:_1301s:a56t:i swarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ed
      |          ^1301
 | inline void Cord:In file included from :s2/s2closest_edge_query.ccI:n18l:
iIn file included from n../src/s2/s2closest_edge_query.he:R34e:
pIn file included from :../src/s2/s2closest_edge_query_base.h::C32o:
mIn file included from m/usr/local/clang/include/absl/container/btree_set.hi:t66T:
r/usr/local/clang/include/absl/container/internal/btree_container.he:e526(:c3o:n swarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
CordR  e526p | *   aAbBsSlL__nIuNlTlEaRbNlAeL _oXl(di_nrseepr,t
_      o| r                                                       ^_
as/usr/local/clang/include/absl/base/nullability.hs:i257g:n23,:  inote: nexpanded from macro 'absl_nullable's
er  t257_ | o#rd_eafsisnieg na_bismlp_ln,u lcloanbslte  &_,N uclolnasbtl e&
,      
|                             ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |      In file included from  s2/s2crossing_edge_query.cc : 18 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23t:
rIn file included from u../src/s2/s2cell_id.he:,43 :
fIn file included from a../src/s2/s1angle.hl:s28e:
)In file included from ;../src/s2/s2point.h
:      27| :
                  ~~~~~~~~~~~~In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/status/status.h509::6747:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/strings/cord.h:1302:50  :509  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1302  |       A B aS lL 2_ ,I  N vT aE lR 2N _A tL e_ xA tT )T 
R       I | B   ^U 
T E _ C /usr/local/clang/include/absl/log/internal/check_op.hA :P 75T :U 61R :E  D note: _ expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'B 
Y ( t    hC75io | sr )d )RA,eB pS *L  _ aL bO sG l_ _I nN oT nE nR uN lA lL  _ rC eH pE ,C 
K       ( | :                                                  ^:\
a
b      /usr/local/clang/include/absl/base/nullability.hs| :l                                              ^~~~241:
::22i:m pnote: lexpanded from macro 'absl_nonnull'i/usr/local/clang/include/absl/container/internal/btree_container.h
c:i526  t:241_3 | c:#a dswarning: etpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f<
icno/usr/local/clang/include/absl/container/internal/btree_container.hen: s511at:b 52sc:lh _anote: nrexpanded from macro 'ABSL_INTERNAL_X'o*
n naub  ls511ll |  _ _n No on nn nu ul ll l> 
(        A|  B                     ^ S
 L _\I
N      T| E                                                            ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_C  A241P | T#UdReEfDi_nBeY (atbhsils_)n)o)n n u l l   _ N o n n u l l 
        |                       ^ 
    In file included from  s2/s2crossing_edge_query.cc :\18
:
      In file included from | ../src/s2/s2crossing_edge_query.h                                                   ^:
31:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/s2padded_cell.h::3223::
9In file included from :../src/s2/s2cell_id.h :43note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
../src/s2/s1angle.h:28:
   In file included from 32../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from A/usr/local/clang/include/absl/status/status.hB:S67L:
_In file included from I/usr/local/clang/include/absl/status/internal/status_internal.hN:T29E:
R/usr/local/clang/include/absl/strings/cord.hN:A1312L:_38I:F _warning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
lse( i1312f | _isnaltiinsef iaebds,l :.:.c.o)r d___iVnAt_eArRnGaSl_:_:
C      o| r        ^d
Rep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #definIn file included from es2/s2crossing_edge_query.cc :A18B:
SIn file included from L../src/s2/s2crossing_edge_query.h_:I31N:
TIn file included from E../src/s2/s2padded_cell.hR:N23A:
LIn file included from _../src/s2/s2cell_id.hX:(43F:
uIn file included from n../src/s2/s1angle.hc:,28 :
CIn file included from a../src/s2/s2point.hl:l27e:
eIn file included from ,../src/s2/s2coder.h :K23Q:
uIn file included from a/usr/local/clang/include/absl/status/status.hl:,67 :
MIn file included from Q/usr/local/clang/include/absl/status/internal/status_internal.hu:a29l:
,/usr/local/clang/include/absl/strings/cord.h :K1321V:a48l:u ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
MVal u1321e | ,i n.l.i.n)e   v o i d\ 
C      o| r        ^d
::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::Parse/usr/local/clang/include/absl/container/internal/btree_container.hd:F535o:r3m:a twarning: Bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
se*   a535b | s l _AnBoSnLn_uIIn file included from lNs2/s2crossing_edge_query.ccTl: E18pR:
NcIn file included from A../src/s2/s2crossing_edge_query.h)L:_
31X      :
(| In file included from i                                                   ^../src/s2/s2padded_cell.hn
:s23e:
r/usr/local/clang/include/absl/base/nullability.hIn file included from t../src/s2/s2cell_id.h_::o24143r::
_22In file included from a:../src/s2/s1angle.hs :s28inote: g:
nexpanded from macro 'absl_nonnull'In file included from ,
../src/s2/s2point.h :i  27n241:
s | In file included from e#../src/s2/s2coder.hrd:te23f_i:
noeIn file included from r /usr/local/clang/include/absl/status/status.ha_:ab67ss:
slIn file included from i_/usr/local/clang/include/absl/status/internal/status_internal.hgn:no29_n:
ni/usr/local/clang/include/absl/strings/cord.huml:pl1505 l:,_41N o:cn nowarning: untype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ls
lt
       &|  ,                     ^ 1505&
 | &i,n ltirnuee ,v
o      i| d  ^ 
Co/usr/local/clang/include/absl/container/internal/btree_container.hr:d509:::52C:o pnote: yexpanded from macro 'ABSL_INTERNAL_X'T
oAr  r509a | y I m p l ( c h a r *A BaSbLs_lI_NnToEnRnNuAlLl_ AdTsTtR)I BcUoTnEs_tC A{P
T      U| R                                        ^E
D_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull',
     241  |  # d e f i n e   a b s l _ n o n n u l l\ 
_      N| o                                                   ^n
nu/usr/local/clang/include/absl/container/internal/common.hl:l31
:      9| :                     ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfiIn file included from es2/s2coords.ccd:,18 :
.In file included from .../src/s2/s2coords.h.:)108 :
iIn file included from f../src/s2/s2point.h_:s27a:
tIn file included from i../src/s2/s2coder.hs:f23i:
eIn file included from d/usr/local/clang/include/absl/status/status.h
:      67| :
        ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2crossing_edge_query.cc29::
18In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2crossing_edge_query.h82::
31In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :In file included from ../src/s2/s2padded_cell.h23s2/s2closest_edge_query.cc::
:23In file included from 18:
/usr/local/clang/include/absl/crc/crc32c.h:
In file included from :In file included from ../src/s2/s2cell_id.h32../src/s2/s2closest_edge_query.h::
:4334/usr/local/clang/include/absl/strings/str_format.h:
:
:In file included from In file included from 155../src/s2/s1angle.h../src/s2/s2closest_edge_query_base.h:::362832::
:
 In file included from In file included from ../src/s2/s2point.hwarning: /usr/local/clang/include/absl/container/btree_set.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:27
66:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree_container.h:  :23155535:
 | :In file included from  3 /usr/local/clang/include/absl/status/status.h:e: x67warning: p:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]lIn file included from i
/usr/local/clang/include/absl/status/internal/status_internal.hc:i29t:
   /usr/local/clang/include/absl/strings/cord.hF535:o | 1514r :m a29At:BC Sowarning: Lutype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_n
ItNCTa Ep1514Rt | Nu Ar Le _( Xic(onirtnd*s_ eiarnbtst_leo_rrnn_oaanlsn:su:ilCglon rp,d) R ie:np s*pe _ra(tbp_s)ol r_{_n}aos
ns      ni| ug                                   ^nl
_li /usr/local/clang/include/absl/base/nullability.htm:rp241ele:,)22  :c{ o
note: n      expanded from macro 'absl_nonnull's| 
t                            ^ 
  &241, | /usr/local/clang/include/absl/base/nullability.h #:&d241&e:,f22i :tn renote:  uexpanded from macro 'absl_nonnull'ae
b,s  
l241      _ | n| #o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~dn
enf  iu536nl | el    a_ bN so nl n_ unl ol 
n       n u|  l                     ^ l
   _ N o nfnaullsle
)      ;| 
                     ^      
|                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 | In file included from  s2/s2coords.cc : 18 :
 In file included from  ../src/s2/s2coords.h : 108 :
 In file included from A../src/s2/s2point.hB:S27L:
_In file included from I../src/s2/s2coder.hN:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.hA:L67_:
AIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hT:R29I:
BIn file included from U/usr/local/clang/include/absl/strings/cord.hT:E82_:
CIn file included from A/usr/local/clang/include/absl/crc/internal/crc_cord_state.hP:T23U:
RIn file included from E/usr/local/clang/include/absl/crc/crc32c.hD:_32B:
Y/usr/local/clang/include/absl/strings/str_format.h(:t164h:i8s:) )warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      164  |      i n t *   a b s l _ n o n n u l\l
       | U                                              ^~~~n
used() {/usr/local/clang/include/absl/container/internal/btree_container.h :r535e:t3u:r nwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
_;/usr/local/clang/include/absl/container/internal/btree_container.h :}511
:      52| :       ^ 
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.h
:241:22:   511 | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(this)))     In file included from  s2/s2coords.cc : 18 :
 In file included from  ../src/s2/s2coords.h : 108 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
\In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                                   ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/common.h29::
32In file included from :/usr/local/clang/include/absl/strings/cord.h9::82 :
In file included from note: /usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from macro 'ABSL_INTERNAL_IF_false' defined here:s2/s2crossing_edge_query.cc
23::
18In file included from    :
/usr/local/clang/include/absl/crc/crc32c.h32In file included from : | ../src/s2/s2crossing_edge_query.h32#::
d31/usr/local/clang/include/absl/strings/str_format.he:
:fIn file included from 165i../src/s2/s2padded_cell.h:n:8e23: :
 AIn file included from warning: B../src/s2/s2cell_id.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S:
L43_:
  IIn file included from 165N../src/s2/s1angle.h | T: E28R :
iNIn file included from AnLt../src/s2/s2point.h_*: I27aF:
b_sIn file included from fl../src/s2/s2coder.h_an:lo23sn:
neIn file included from (u/usr/local/clang/include/absl/status/status.hil:fl67 _p:
_s;In file included from 
a/usr/local/clang/include/absl/status/internal/status_internal.h      t:| i29       ^s:

f/usr/local/clang/include/absl/strings/cord.hi:/usr/local/clang/include/absl/base/nullability.he1525d::,24129 ::.22 .:warning: . type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
note:  expanded from macro 'absl_nonnull'_
_ V1525  A | 241_  | A #R dG Sec_fo_ri
dn      _e| i        ^n
ternal::CordRep*  aabbssll__nnoonnnnuullll  t_rNeoen)n u{l
l      
|                                   ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(FuIn file included from ns2/s2crossing_edge_query.ccc:,18 :
CIn file included from a../src/s2/s2crossing_edge_query.hl:l31e:
eIn file included from ,../src/s2/s2padded_cell.h :K23Q:
uIn file included from a../src/s2/s2cell_id.hl:,43 :
MIn file included from Q../src/s2/s1angle.hu:a28l:
,In file included from  ../src/s2/s2point.hK:V27a:
lIn file included from u../src/s2/s2coder.he:,23 :
MIn file included from V/usr/local/clang/include/absl/status/status.ha:l67u:
eIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :.29.:
./usr/local/clang/include/absl/strings/cord.h): 1530 : 55 :  \warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
        ^
 1530 | inline Cord::ChunkIterator::ChIn file included from us2/s2coords.ccn:k18I:
tIn file included from e../src/s2/s2coords.hr:a108t:
oIn file included from r../src/s2/s2point.h(:c27o:
nIn file included from s../src/s2/s2coder.ht: 23C:
oIn file included from r/usr/local/clang/include/absl/status/status.hd:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n82u:
lIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :c23o:
rIn file included from d/usr/local/clang/include/absl/crc/crc32c.h): 32{:

      /usr/local/clang/include/absl/strings/str_format.h| :                                                      ^380
:43: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'380
 | s  t241d | :#:dsetfr/usr/local/clang/include/absl/container/internal/btree_container.hii:nn537ge:& 3 a:Sbt rswarning: Alpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p_
pneonnd  nFu537ol | lr  m _aANtBo(SnsLnt_udIl:Nl:T
sE      tRr| Ni                     ^AnLg
_*X (aibnssle_rnto_nonru_lals sdisgtn,,
       i| n                                          ^s
ert/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n_  i241m | p#ld,e fcionnes ta b&s,l _&n&o,n nturlule ,_
N      o| n  ^n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl:
509      :52: | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_XIn file included from (s2/s2coords.cci:n18s:
eIn file included from r../src/s2/s2coords.ht:_108o:
rIn file included from _../src/s2/s2point.ha:s27s:
iIn file included from g../src/s2/s2coder.hn:,23 :
iIn file included from n/usr/local/clang/include/absl/status/status.hs:e67r:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ho:r29_:
aIn file included from s/usr/local/clang/include/absl/strings/cord.hs:i82g:
nIn file included from _/usr/local/clang/include/absl/crc/internal/crc_cord_state.hi:m23p:
lIn file included from ,/usr/local/clang/include/absl/crc/crc32c.h :c32o:
n/usr/local/clang/include/absl/strings/str_format.hs:t440 :&24,:  &warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 tru  e440, | 
i      n| t  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
FP  r538i | n t F ( s t d : : F I L E *   a b s lt_rnuoen)n;u
l      l|                   ~~~~~
 o/usr/local/clang/include/absl/container/internal/btree_container.hu:t509p:u47t:,  note: cexpanded from macro 'ABSL_INTERNAL_X'o
nst   F509o | r m a t S p e c < A rAgBsS.L._.I>N&T EfRoNrAmLa_tA,T
T      R| I                       ^B
UTE/usr/local/clang/include/absl/base/nullability.h_:C241A:P22T:U Rnote: Eexpanded from macro 'absl_nonnull'D
_B  Y241( | t#hdiesf)i)n,e   a b s l _ n o n n u l l   _ N o n n u l l 
       \| 
                     ^      
|                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTEIn file included from _s2/s2coords.ccC:A18P:
TIn file included from U../src/s2/s2coords.hR:E108D:
_In file included from B../src/s2/s2point.hY:(27t:
hIn file included from i../src/s2/s2coder.hs:)23):
)In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
\/usr/local/clang/include/absl/strings/str_format.h
:      469| :                                                   ^20
: /usr/local/clang/include/absl/container/internal/common.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:9:   note: 469macro 'ABSL_INTERNAL_IF_true' defined here | 
int    31S | N#PdreifnitnFe( cAhBaSrL*_ IaNbTsElR_NnAoLn_nIuFl_lt rouuet(piuft_,s asttids:f:iseidz,e _.t. .s)i zief,_
s      a| t                   ^i
sf/usr/local/clang/include/absl/base/nullability.hi:e241d:
22      :|          ^note: 
expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2closest_edge_query.cca:b18s:
lIn file included from _../src/s2/s2closest_edge_query.hn:o34n:
nIn file included from u../src/s2/s2closest_edge_query_base.hl:l32 :
_In file included from N/usr/local/clang/include/absl/container/btree_set.ho:n66n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l537
:      3| :                     ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   In file included from ts2/s2coords.ccr:u18e:
)In file included from ;../src/s2/s2coords.h
:      108| :
                  ~~~~~In file included from 
../src/s2/s2point.h:27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2coder.h511::2347:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 511/usr/local/clang/include/absl/strings/cord.h | : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h :A32B:
S/usr/local/clang/include/absl/strings/str_format.hL:_503I:N20T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_A  T503T | R I BFUoTrEm_aCtARPaTwUSRiEnDk_(BTY*( tahbiss)))     l _ n o n n u l l   r a w )     / /   N\O
L      I| N                                              ^~~~T

      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |         In file included from  s2/s2crossing_edge_query.cc :A18B:
SIn file included from L../src/s2/s2crossing_edge_query.h_:I31N:
TIn file included from E../src/s2/s2padded_cell.hR:N23A:
LIn file included from _../src/s2/s2cell_id.hA:T43T:
RIn file included from I../src/s2/s1angle.hB:U28T:
EIn file included from _../src/s2/s2point.hC:A27P:
TIn file included from U../src/s2/s2coder.hR:E23D:
_In file included from B/usr/local/clang/include/absl/status/status.hY:(67t:
hIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hs:)29):
)/usr/local/clang/include/absl/strings/cord.h : 1666 : 48 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1666  |  i n l i n e   C o\r
d       | C                                                   ^o
rd/usr/local/clang/include/absl/container/internal/common.h:::32A:d9v:a nnote: cmacro 'ABSL_INTERNAL_IF_false' defined heree
And   R32e | a#dd(eCfhianreI tAeBrSaLt_oIrN*T EaRbNsAlL__nIoFn_nfuallls ei(ti,f
_      s| a                                               ^t
isf/usr/local/clang/include/absl/base/nullability.hi:e241d:,22 :. .note: .expanded from macro 'absl_nonnull')
 _  _241V | A#_dAeRfGiSn_e_ 
a      b| s        ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                 In file included from  s2/s2crossing_edge_query.cc :t18r:
uIn file included from e../src/s2/s2crossing_edge_query.h):;31
:
      In file included from | ../src/s2/s2padded_cell.h                      ^:
23:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2cell_id.h::49643::
9In file included from :../src/s2/s1angle.h :28note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h496: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
L/usr/local/clang/include/absl/strings/cord.h_:I1672N:T41E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_X(F u1672n | ci,n lCianlel eveo,i dK QCuoarld,: :MAQduvaaln,c eK(VCahlaureI,t eMrVaatloure*,  a.b.s.l)_ n o n n u\l
l       | i        ^t
, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSLIn file included from _s2/s2coords.ccI:N18T:
EIn file included from R../src/s2/s2coords.hN:A108L:
_In file included from I../src/s2/s2point.hF:_27f:
aIn file included from l../src/s2/s2coder.hs:e23(:
iIn file included from f/usr/local/clang/include/absl/status/status.h_:s67a:
tIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hs:f29i:
eIn file included from d/usr/local/clang/include/absl/strings/cord.h,: 82.:
.In file included from ./usr/local/clang/include/absl/crc/internal/crc_cord_state.h): 23_:
_In file included from V/usr/local/clang/include/absl/crc/crc32c.hA:_32A:
R/usr/local/clang/include/absl/strings/str_format.hG:S860_:_43
:       | warning:         ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |  In file included from  s2/s2closest_edge_query.ccf:r18i:
eIn file included from n../src/s2/s2closest_edge_query.hd: 34v:
oIn file included from i../src/s2/s2closest_edge_query_base.hd: 32A:
bIn file included from s/usr/local/clang/include/absl/container/btree_set.hl:F66o:
r/usr/local/clang/include/absl/container/internal/btree_container.hm:a542t:F3l:u swarning: hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
For  m542a | t S iAnBkS*L _aIbNsTlE_RnNoAnLn_uXl(li nsserti_nokr,_
a      s| s                                          ^i
gn,/usr/local/clang/include/absl/base/nullability.h :i241n:s22e:r tnote: _expanded from macro 'absl_nonnull'o
r_  a241s | s#idgenf_iinmep la,b s&l&_,n ocnonnusltl  &_,N ofnanluslel,

            | |                      ^  ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAIn file included from Ls2/s2coords.cc_:A18T:
TIn file included from R../src/s2/s2coords.hI:B108U:
TIn file included from E../src/s2/s2point.h_:C27A:
PIn file included from T../src/s2/s2coder.hU:R23E:
DIn file included from _/usr/local/clang/include/absl/status/status.hB:Y67(:
tIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.hi:s29):
)In file included from )/usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 867 : 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 \
      |                                                      ^867
 |  /usr/local/clang/include/absl/container/internal/common.h :e31x:p9l:i cnote: imacro 'ABSL_INTERNAL_IF_true' defined heret
 Fo   r31m | a#tdSeifnikn(es tArB_SfLo_rImNaTtE_RiNnAtLe_rInFa_lt:r:uFeo(rimfa_tsSaitniksIfmipeld*,  a.b.s.l)_ niofn_nsualtli ssf)i
e      d| 
                                                           ^      
|         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2closest_edge_query.cci:n18e:
 In file included from a../src/s2/s2closest_edge_query.hb:s34l:
_In file included from n../src/s2/s2closest_edge_query_base.ho:n32n:
uIn file included from l/usr/local/clang/include/absl/container/btree_set.hl: 66_:
N/usr/local/clang/include/absl/container/internal/btree_container.ho:n542n:u3l:l 
      warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]                     ^

  542 |   ABSL_INTERNAL_In file included from Xs2/s2coords.cc(:i18n:
sIn file included from e../src/s2/s2coords.hr:t108_:
oIn file included from r../src/s2/s2point.h_:a27s:
sIn file included from i../src/s2/s2coder.hg:n23,:
 In file included from i/usr/local/clang/include/absl/status/status.hn:s67e:
rIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h_:o29r:
_In file included from a/usr/local/clang/include/absl/strings/cord.hs:s82i:
gIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:i23m:
pIn file included from l/usr/local/clang/include/absl/crc/crc32c.h,: 32&:
&/usr/local/clang/include/absl/strings/str_format.h,: 869c:o40n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
, fa  l869s | e , 
s      t| r  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
fo  r543m | a t _ i n t e r n a l : : F o r m a ttSriunek)I;m
p      l| *                  ~~~~~ 
abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_511n:o47n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 sin  k511_ | ; 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| )                     ^ 
                       \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_im367p warningls, generated .
&&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |  In file included from  s2/s2closest_cell_query.ccA:B18S:
LIn file included from _../src/s2/s2closest_cell_query.hI:N32T:
EIn file included from R../src/s2/s2closest_cell_query_base.hN:A33L:
_In file included from X/usr/local/clang/include/absl/container/btree_set.h(:i66n:
se/usr/local/clang/include/absl/container/internal/btree_container.hr:t523_:o31r:_ awarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
ign  ,523  | i n s e r t _ o r _ a s s i g n _ i mfpall,s e&,& ,f a&l&s,e )f;a
l      s| e                              ^,
 tr/usr/local/clang/include/absl/container/internal/btree_container.hu:e496):;9
:       | note:                                                                               ^macro 'ABSL_INTERNAL_X' defined here

/usr/local/clang/include/absl/container/internal/btree_container.h:496  :4969 | :# dnote: emacro 'ABSL_INTERNAL_X' defined heref
ine   496A | B#SdLe_fIiNnTeE RANBASLL__XI(NFTuEnRcN,A LC_aXl(lFeuen,c ,K QCuaalll,e eM,Q uKaQlu,a lK,V aMlQuuea,l ,M VKaVlauleu,e ,. .M.V)a l u e ,  \.
.      .| )        ^ 
    \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(/usr/local/clang/include/absl/container/internal/btree_container.hi:n522s:e3r:t _warning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
_ass  i522g | n In file included from , s2/s2crossing_edge_query.cc A:BiS18nL:
s_eIn file included from Ir../src/s2/s2crossing_edge_query.hNt:T_31Eo:
RrIn file included from N_../src/s2/s2padded_cell.hAa:Ls23_s:
XiIn file included from (g../src/s2/s2cell_id.hin:n_43si:
emIn file included from rp../src/s2/s1angle.htl:_,28o :
r&In file included from _&../src/s2/s2point.ha,:s 27s&:
i&In file included from g,../src/s2/s2coder.hn :,f23 a:
ilIn file included from ns/usr/local/clang/include/absl/status/status.hse:e,67r :
tt_r/usr/local/clang/include/absl/status/internal/status_internal.hou:re119_):a;14s
:s       i| warning: g  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n

_i/usr/local/clang/include/absl/container/internal/btree_container.hm:  p509119l: | ,52  : c Sonote: tnexpanded from macro 'ABSL_INTERNAL_X'as
ttu s&  R,509e  | pc *o  n as bt s  l& _, n
 o       n| An  ^Bu
SlLl/usr/local/clang/include/absl/container/internal/btree_container.h_ :IC509Nl:To52En:Re N(note: A
expanded from macro 'ABSL_INTERNAL_X'L      
_| A             ^T  
T509R | I /usr/local/clang/include/absl/base/nullability.hB :U 241T :E 22_ :C  A note: P expanded from macro 'absl_nonnull'T 
UARB  ES241DL | __#BIdYNe(TftEihRniNesA )La)_b,As Tl T_ Rn Io Bn Un Tu El _l C  A_ PN To Un Rn Eu Dl _l B
 Y       (|  t                     ^ h
 i\s
)      )| ,                                                   ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
      32  |  # d e f i nIn file included from  es2/s2crossing_edge_query.cc  :\A18
B:
      SIn file included from | L../src/s2/s2crossing_edge_query.h                                                   ^_:
I31N:
TIn file included from E../src/s2/s2padded_cell.hR:N23/usr/local/clang/include/absl/container/internal/common.hA:
:LIn file included from 32_../src/s2/s2cell_id.h:I:9F43:_:
 fIn file included from note: a../src/s2/s1angle.hmacro 'ABSL_INTERNAL_IF_false' defined herel:
s28e:
(In file included from    i../src/s2/s2point.h32f: | _27#s:
daIn file included from et../src/s2/s2coder.hfi:is23nf:
eiIn file included from  e/usr/local/clang/include/absl/status/status.hAd:B,67S :
L./usr/local/clang/include/absl/status/internal/status_internal.h_.:I.125N):T 14E_:R_ NVwarning: AAtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L_
_AIRF  G_125Sf | _a _l 
sS      et| (a        ^it
fu_ssRaetpi*s faIn file included from ibs2/s2closest_edge_query.cces:dl18,_:
 nIn file included from .o../src/s2/s2closest_edge_query.h.n:.n34)u:
 lIn file included from _l../src/s2/s2closest_edge_query_base.h_ :VC32Al:
_oIn file included from An/usr/local/clang/include/absl/container/btree_set.hRe:GA66Sn:
_d/usr/local/clang/include/absl/container/internal/btree_container.h_U:
n551      r:| e3        ^f:
( 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]             ^

/usr/local/clang/include/absl/base/nullability.h:  241551In file included from : | s2/s2closest_cell_query.cc22 :: 18 A:
note: BIn file included from expanded from macro 'absl_nonnull'S../src/s2/s2closest_cell_query.h
L:_  32I241:
N | In file included from T#../src/s2/s2closest_cell_query_base.hEd:Re33Nf:
AiIn file included from Ln/usr/local/clang/include/absl/container/btree_set.h_e:X 66(a:
ib/usr/local/clang/include/absl/container/internal/btree_container.hns:sl522e_:rn3to:_n onwarning: rupassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_l
als s_  iN522go | nn ,n  uAilBnlSs
Le      _r| It                     ^N_
ToErR_NaAsLs_iXg(ni_nismeprlt,_ o&r&_,a s&s&i,g nfa,lIn file included from  ss2/s2crossing_edge_query.ccie:n,18s :
etIn file included from rr../src/s2/s2crossing_edge_query.htu:_e31o):
r;In file included from _
../src/s2/s2padded_cell.ha      :s| 23s  ^:
i
In file included from g../src/s2/s2cell_id.hn/usr/local/clang/include/absl/container/internal/btree_container.h:_:43i511:
m:In file included from p52../src/s2/s1angle.hl::, 28 :
note: cIn file included from expanded from macro 'ABSL_INTERNAL_X'o../src/s2/s2point.h
n:  s27511t:
 |  In file included from  &../src/s2/s2coder.h ,:  23 c:
 oIn file included from  n/usr/local/clang/include/absl/status/status.h s: t67  :
 &/usr/local/clang/include/absl/status/internal/status_internal.hA,:B
128S      :L| 14_  ^:I
 Nwarning: T/usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E:
R511N:A52  L:128_  | Anote:  Texpanded from macro 'ABSL_INTERNAL_X' T
SRtIaB  tU511uT | sE R_ eC pA *P  T aU bR sE lD __AnBBoYSn(Lnt_uhIliNlsT )EC)Rl)No An Le _A An Td TU Rn Ir Be Uf T( E) _  Cc Ao Pn Ts Ut R; E
 D       _|  B             ^ Y
\(
t      /usr/local/clang/include/absl/base/nullability.hh| :i                                                   ^241s
:)22/usr/local/clang/include/absl/container/internal/common.h)::) 31 note: : expanded from macro 'absl_nonnull'9 
:     241note:   | macro 'ABSL_INTERNAL_IF_true' defined here #
 d e    f 31i  | n #e d  ea fb is nl e_  n Ao Bn Sn Lu\_l
Il      N | T_                                                   ^EN
RoNn/usr/local/clang/include/absl/container/internal/common.hAn:Lu32_l:Il9F
:_       t| note: r                     ^macro 'ABSL_INTERNAL_IF_false' defined hereu

e(i   f32_ | s#adteifsifniee dA,B S.L._.I)N TiEfR_NsAaLt_iIsFf_ifeadl
s      e| (        ^i
f_satisfied, ..In file included from .s2/s2closest_edge_query.cc): 18_:
_In file included from V../src/s2/s2closest_edge_query.hA:_34A:
RIn file included from G../src/s2/s2closest_edge_query_base.hS:_32_:

In file included from       /usr/local/clang/include/absl/container/btree_set.h| :        ^66
:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign,In file included from  s2/s2closest_cell_query.cci:n18s:
eIn file included from r../src/s2/s2closest_cell_query.ht:_32o:
rIn file included from _../src/s2/s2closest_cell_query_base.ha:s33s:
iIn file included from g/usr/local/clang/include/absl/container/btree_set.hn:_66i:
m/usr/local/clang/include/absl/container/internal/btree_container.hp:l525,: 30&:& ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]&
&,   f525a | l s e ,   t r u e ) ; 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.hf:a511l:s47e:,  note: texpanded from macro 'ABSL_INTERNAL_X'r
ue);  
511       | |                               ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :  Anote: Bmacro 'ABSL_INTERNAL_X' defined hereS
L_I  N496T | E#RdNeAfLi_nAeT TARBISBLU_TIEN_TCEARPNTAULR_EXD(_FBuYn(ct,h iCsa)l)l)e e ,   K Q u a l ,   M Q u a l ,   K V a l u e ,\ 
M      V| a                                              ^~~~l
ue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTER/usr/local/clang/include/absl/container/internal/btree_container.hN:A524L:_3X: (warning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
sert  _524o | r _ aAsBsSiLg_nI,N TiEnRsNeArLt__Xo(ri_nassesritg_no_ri_mapsls,i g&n&,,  i&n&s,e rttr_uoer,_ afsaslisgen)_;i
m      p| l                                                                              ^,
 c/usr/local/clang/include/absl/container/internal/btree_container.ho:n496s:t9 :& ,note:  macro 'ABSL_INTERNAL_X' defined herec
ons  t496  | &#,d
e      f| i  ^n
e /usr/local/clang/include/absl/container/internal/btree_container.hA:B509S:L52_:I Nnote: Texpanded from macro 'ABSL_INTERNAL_X'E
RNA  L509_ | X ( F u n c ,   C a lAlBeSeL,_ IKNQTuEaRlN,A LM_QAuTaTlR,I BKUVTaEl_uCeA,P TMUVRaElDu_eB,Y (.t.h.i)s ) ) ,    \ 
        |          ^ 
                 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:/usr/local/clang/include/absl/container/internal/btree_container.h32::
552In file included from :../src/s2/s2closest_cell_query_base.h3::33 :
In file included from warning: /usr/local/clang/include/absl/container/btree_set.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524  :5523 | :   warning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]B
SL_I  N524T | E R NAABLS_LX_(IiNnTsEeRrNtA_Lo_rX_(aisnssiegrnt,_ oirn_saesrsti_gonr,_ aisnssiegrnt__iomrp_la,s s&i&g,n _&i&m,p lt,r uceo,n sfta l&s,e )c;o
n      s| t  ^ 
&,/usr/local/clang/include/absl/container/internal/btree_container.h
:      509| :  ^52
: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'ABSL_INTERNAL_X'511
:52:   note: 509expanded from macro 'ABSL_INTERNAL_X' | 
      511  |            A B S L _AIBNSTLE_RINNATLE_RANTATLR_IABTUTTREI_BCUATPET_UCRAEPDT_UBRYE(Dt_hBiYs()t)h,i s ) ) )                                        \ 
        |                                                     ^\

      | /usr/local/clang/include/absl/container/internal/common.h                                                   ^:
31:9/usr/local/clang/include/absl/container/internal/common.h:: 31:note: 9macro 'ABSL_INTERNAL_IF_true' defined here:
 note:    macro 'ABSL_INTERNAL_IF_true' defined here31
 | #d   e31f | i#ndee fAiBnSeL _AIBNSTLE_RINNATLE_RINFA_Lt_rIuFe_(tirfu_es(aitfi_ssfaiteids,f i.e.d.,)  .i.f._)s aitfi_ssfaiteids
f      i| e        ^d

      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:In file included from 34s2/s2closest_cell_query.cc:
:In file included from 18../src/s2/s2closest_edge_query_base.h:
:In file included from 32../src/s2/s2closest_cell_query.h:
:In file included from 32/usr/local/clang/include/absl/container/btree_set.h:
:In file included from 66../src/s2/s2closest_cell_query_base.h:
:33/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 552/usr/local/clang/include/absl/container/btree_set.h::366::
 /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]524
:3: warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]552
 |   ABS  L524_ | I N TAEBRSNLA_LI_NXT(EiRnNsAeLr_tX_(oirn_saesrsti_gonr,_ aisnssiegrnt,_ oirn_saesrsti_gonr__iamspsli,g n&_&i,m p&l&,,  ctornuset,  &f,a lcsoen)s;t
       &| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509  :52547 | :   note:  expanded from macro 'ABSL_INTERNAL_X' 
       509  |                 f a lAsBeS,L _tIrNuTeE)R;N
A      L| _                  ~~~~~~~~~~~~A
TTR/usr/local/clang/include/absl/container/internal/btree_container.hI:B511U:T47E:_ Cnote: Aexpanded from macro 'ABSL_INTERNAL_X'P
TURE  D511_ | B Y ( t h i s ) ) ,  A B S L _ I N T E R N A L _ A T T R I B U T E _\C
A      P| T                                              ^~~~U
RED_BY(/usr/local/clang/include/absl/container/internal/btree_container.ht:h552i:s3):) )warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |               \ 
        | A                                              ^~~~B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false/usr/local/clang/include/absl/container/internal/btree_container.h(:i527f:_30s:a twarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
fie  d527, |   . . . )   _ _ V A _ A R G S _ _ 
       t| r        ^u
e, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.h::526496::39::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]macro 'ABSL_INTERNAL_X' defined here

    496526 |  | # d eAfBiSnLe_ IANBTSELR_NIANLT_EXR(NiAnLs_eXr(tF_uonrc_,a sCsailglne,e ,i nKsQeuratl_,o rM_Qausasli,g nK_Viamlpule,,  cMoVnasltu e&,,  .c.o.n)s t   & , 
\      
|         ^| 
        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_I/usr/local/clang/include/absl/container/internal/btree_container.hN:T553E:R3N:A Lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
F_tr  u553e | ( i fA_BsSaLt_iIsNfTiEeRdN,A L._.X.()i nisfe_rsta_toirs_faisesdi
g      n| ,        ^ 
insert_or_assign_iIn file included from ms2/s2closest_cell_query.ccp:l18,:
 In file included from &../src/s2/s2closest_cell_query.h&:,32 :
&In file included from &../src/s2/s2closest_cell_query_base.h,: 33t:
rIn file included from u/usr/local/clang/include/absl/container/btree_set.he:,66 :
t/usr/local/clang/include/absl/container/internal/btree_container.hr:u526e:)3;:
       | warning:   ^
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52:   526note:  | expanded from macro 'ABSL_INTERNAL_X' 
 AB  S509L | _ I N T E R N A L _ XA(BiSnLs_eIrNtT_EoRrN_AaLs_sAiTgTnR,I BiUnTsEe_rCtA_PoTrU_RaEsDs_iBgYn(_tihmipsl),) ,c o n s t   & ,   c o n s t   & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     527\ | 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
      t31r | u#ed,e ffianles eA)B;S
L      _| I                  ~~~~~~~~~~~~N
TER/usr/local/clang/include/absl/container/internal/btree_container.hN:A509L:_47I:F _note: texpanded from macro 'ABSL_INTERNAL_X'r
ue(i  f509_ | s a t i s f i e d ,  A.B.S.L)_ IiNfT_EsRaNtAiLs_fAiTeTdR
I      B| U        ^T
E_CAPTURED_BY(In file included from ts2/s2closest_edge_query.cch:i18s:
)In file included from )../src/s2/s2closest_edge_query.h,: 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 553 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
  \
        | 553                                              ^~~~ | 
  ABSL_/usr/local/clang/include/absl/container/internal/btree_container.hI:N526T:E3R:N Awarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
X(/usr/local/clang/include/absl/container/internal/btree_container.hi:n511s:e52r:t _note: oexpanded from macro 'ABSL_INTERNAL_X'r
_as  s511i | g n ,   i n s e r t _AoBrS_La_sIsNiTgEnR_NiAmLp_lA,T T&R&I,B U&T&E,_ CtArPuTeU,R EtDr_uBeY)(;t
h      i| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
)) /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
       509  |                 \ 
       A| B                                                   ^S
L_/usr/local/clang/include/absl/container/internal/common.hI:N32T:E9R:N Anote: Lmacro 'ABSL_INTERNAL_IF_false' defined here_
ATT   R32I | B#UdTeEf_iCnAeP TAUBRSELD__IBNYT(EtRhNiAsL)_)I,F _ f a l s e ( i f _ s a t i s f i e d ,  . . . )\ 
_      _| V                                              ^~~~A
_ARGS__/usr/local/clang/include/absl/container/internal/btree_container.h
:      553| :        ^3
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #In file included from ds2/s2closest_cell_query.cce:f18i:
nIn file included from e../src/s2/s2closest_cell_query.h :A32B:
SIn file included from L../src/s2/s2closest_cell_query_base.h_:I33N:
TIn file included from E/usr/local/clang/include/absl/container/btree_set.hR:N66A:
L/usr/local/clang/include/absl/container/internal/btree_container.h_:I529F:_29t:r uwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
if_  s529a | t i s f i e d ,   . . . )   i f _ s attriusef,i etdr
u      e| )        ^;

      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: In file included from note: s2/s2closest_edge_query.ccmacro 'ABSL_INTERNAL_X' defined here:
18:
In file included from ../src/s2/s2closest_edge_query.h  :49634 | :
#In file included from d../src/s2/s2closest_edge_query_base.he:f32i:
nIn file included from e/usr/local/clang/include/absl/container/btree_set.h :A66B:
S/usr/local/clang/include/absl/container/internal/btree_container.hL:_553I:N3T:E Rwarning: N'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A
L_X(F  u553n | c ,  ACBaSlLl_eIeN,T EKRQNuAaLl_,X (MiQnusaelr,t _KoVra_lauses,i gMnV,a liunes,e r.t._.o)r _ a s s i\g
n      _| i        ^m
pl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) i/usr/local/clang/include/absl/container/internal/btree_container.hf:_555s:a3t:i swarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ed
        | 555        ^ | 
  ABSL_INTERNAL_XIn file included from (s2/s2closest_cell_query.cci:n18s:
eIn file included from r../src/s2/s2closest_cell_query.ht:_32o:
rIn file included from _../src/s2/s2closest_cell_query_base.ha:s33s:
iIn file included from g/usr/local/clang/include/absl/container/btree_set.hn:,66 :
i/usr/local/clang/include/absl/container/internal/btree_container.hn:s528e:r3t:_ owarning: r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
assig  n528_ | h i nAtB_SiLm_pIlN,T EcRoNnAsLt_ X&(,i
n      s| e  ^r
t_/usr/local/clang/include/absl/container/internal/btree_container.ho:r509_:a52s:s inote: gexpanded from macro 'ABSL_INTERNAL_X'n
, i  n509s | e r t _ o r _ a s s iAgBnS_Li_mIpNlT,E RcNoAnLs_tA T&T,R IcBoUnTsEt_ C&A,P
T      U| R  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E
D_  B529Y | ( t h i s ) ) ,                      t r u e ,   t r u e ) ; 
       \| 
                  ~~~~~~~~~~~      
|                                                    ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509/usr/local/clang/include/absl/container/internal/common.h::4732:: 9:note:  expanded from macro 'ABSL_INTERNAL_X'
note: macro 'ABSL_INTERNAL_IF_false' defined here
  509    | 32  |  # d e f i n e   AABBSSLL__IINNTTEERRNNAALL__IAFT_TfRaIlBsUeT(Ei_fC_AsPaTtUiRsEfDi_eBdY,( t.h.i.s)) )_,_ V A _ A R G S _ _ 
        |          ^ 
          In file included from \s2/s2closest_edge_query.cc
:      18| :
                                              ^~~~In file included from 
../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/btree_set.h::52866::
3/usr/local/clang/include/absl/container/internal/btree_container.h:: 555:warning: 3passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]511
:52:   note: 555expanded from macro 'ABSL_INTERNAL_X' | 
  A  B511S | L _ I N T E R N A L _AXB(SiLn_sIeNrTtE_RoNrA_La_sAsTiTgRnI,B UiTnEs_eCrAtP_ToUrR_EaDs_sBiYg(nt_hhiisn)t)_)i m p l ,   c o n s t   & , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52\:
       | note:                                                    ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/container/internal/common.h:31  :5119 | :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  #AdBeSfLi_nIeN TAEBRSNLA_LI_NATTETRRNIABLU_TIEF__CtArPuTeU(RiEfD__sBaYt(itshfiise)d),)  . . . )   i f _ s a t i s f i e d 
        |          ^ 
  \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32In file included from :s2/s2closest_cell_query.cc9::18 :
In file included from note: ../src/s2/s2closest_cell_query.hmacro 'ABSL_INTERNAL_IF_false' defined here:
32:
In file included from ../src/s2/s2closest_cell_query_base.h   :3233 | :
#In file included from d/usr/local/clang/include/absl/container/btree_set.he:f66i:
n/usr/local/clang/include/absl/container/internal/btree_container.he: 528A:B3S:L _warning: I'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
TERNA  L528_ | I F _AfBaSlLs_eI(NiTfE_RsNaAtLi_sXf(iiends,e r.t._.o)r __a_sVsAi_gAnR,G Si_n_s
e      r| t        ^_
or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTIn file included from Us2/s2crossing_edge_query.ccR:E18D:
_In file included from BY(../src/s2/s2crossing_edge_query.ht:h31i:
sIn file included from )../src/s2/s2padded_cell.h):)23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h :\67
:
      | /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from                                               ^~~~:s2/s2closest_edge_query.cc
149::1813:
:In file included from  ../src/s2/s2closest_edge_query.h:warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2closest_edge_query_base.h:32:
  In file included from 149/usr/local/clang/include/absl/container/btree_set.h | :c66o:
n/usr/local/clang/include/absl/container/internal/btree_container.hs:t558 :c3h:a rwarning: *passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
absl  _558n | o n nAuBlSlL _MIa/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2edge_crosser.cc -o s2/s2edge_crosser.o
NkTeECRhNeAcLk_FXa(iilnSsterritn_go(r
_      a| s            ^s
ign/usr/local/clang/include/absl/base/nullability.h,: 241i:n22s:e rnote: texpanded from macro 'absl_nonnull'_
or  _241a | s#sdiegfni_nhei na/usr/local/clang/include/absl/container/internal/btree_container.htb:s_532li:_m24np:ol n,warning: n passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]uc
loln  s 532t_ |  N &o ,n 
n       u | l   ^l 

        | /usr/local/clang/include/absl/container/internal/btree_container.h                      ^: 
509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
fIn file included from as2/s2crossing_edge_query.cc  l:s50918e | :
) In file included from ; ../src/s2/s2crossing_edge_query.h
 :       31|  :
                       ^ In file included from 
 ../src/s2/s2padded_cell.h :/usr/local/clang/include/absl/container/internal/btree_container.h 23: :
496AIn file included from :B../src/s2/s2cell_id.h9S::L43 _:
note: IIn file included from macro 'ABSL_INTERNAL_X' defined hereN../src/s2/s1angle.h
T:E28R:
  NIn file included from 496A../src/s2/s2point.h | L:#_27dA:
eTIn file included from fT../src/s2/s2coder.hiR:nI23eB:
 UIn file included from AT/usr/local/clang/include/absl/status/status.hBE:S_67LC:
_A/usr/local/clang/include/absl/status/internal/status_internal.hIP:TNU150TR:EE25RD:N_ ABwarning: LYtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_(
Xt(hFi  us150n) | c) ,,    C  a cl ol ne se t,    aK bQ su la :l :, S  tM aQ tu ua sl *,    aK bV\sa
ll      _u| ne                                                   ^o,n
 nMu/usr/local/clang/include/absl/container/internal/common.hVl:al32l :us9et:,a  tnote: .umacro 'ABSL_INTERNAL_IF_false' defined here.s
.,)  c    o32 n |  s# td\ e
cf      hi| an        ^re
*  AaBbSsLl__InNoTnEnRuNlAlL _pIrFe_ffiaxl)s;e
(      i| f                        ^_
sat/usr/local/clang/include/absl/base/nullability.hi:s241f:i22e:d ,note:  expanded from macro 'absl_nonnull'.
..  )241  | _#_dVeAf_iAnReG Sa_b_s
l      _| n        ^o
nnull _NonIn file included from ns2/s2closest_edge_query.ccu:l18l:

In file included from       ../src/s2/s2closest_edge_query.h| :                     ^34
:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3In file included from :s2/s2crossing_edge_query.cc :18warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2crossing_edge_query.h:31:
In file included from   ../src/s2/s2padded_cell.h558: | 23 :
 In file included from A../src/s2/s2cell_id.hB:S43L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
XIn file included from (../src/s2/s2coder.hi:n23s:
eIn file included from r/usr/local/clang/include/absl/status/status.ht:_67o:
r/usr/local/clang/include/absl/status/internal/status_internal.h_:a150s:s58i:g nwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ins/usr/local/clang/include/absl/container/internal/btree_container.he  :r150531t | :_ 3o :r  _ warning: acpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]so
snisgtn   _a531hbi | sn lt :_A:iBSmStpLal_t,Iu NscT*oE nRasNbtAs Ll&__,Xn
(o      in| nn  ^su
elrl/usr/local/clang/include/absl/container/internal/btree_container.ht :_s511ot:ra52_t:au ssnote: s,expanded from macro 'ABSL_INTERNAL_X'i 
gcno,   n511isn | ts  e cr ht a_ ro *r  _ aa bs ssAliB_gSnnLo__niInmNupTllEl,R  NpcAroLen_fsAitTx T)&R;,I
 B      &U| &T                                                         ^,E
 _f/usr/local/clang/include/absl/base/nullability.hCaA:lP241sT:eU22,R:
E       D| note: _  ^expanded from macro 'absl_nonnull'B

Y(  /usr/local/clang/include/absl/container/internal/btree_container.ht241:h | 509i#:ds52e):f) i)note: n expanded from macro 'ABSL_INTERNAL_X'e 
  a b s   l509 _ |  n  o  n  n  u  l  l     _  N  oA nB nS uL l_ lI 
N\      T
| E                           ^R| 
N                                                   ^A
L_/usr/local/clang/include/absl/container/internal/common.hA:T31T:R9I:B Unote: Tmacro 'ABSL_INTERNAL_IF_true' defined hereE
_CA   P31T | U#RdEeDf_iBnYe( tAhBiSsL)_)I,N T E R N A L _ I F _ t r u e ( i f _ s a t i s f\i
e      d| ,                                                   ^ 
../usr/local/clang/include/absl/container/internal/common.h.:)32 :i9f:_ snote: amacro 'ABSL_INTERNAL_IF_false' defined heret
isf   i32e | d#
d      e| f        ^i
ne ABSL_INTEIn file included from Rs2/s2closest_edge_query.ccN:A18L:
_In file included from I../src/s2/s2closest_edge_query.hF:_34f:
aIn file included from l../src/s2/s2closest_edge_query_base.hs:e32(:
iIn file included from f/usr/local/clang/include/absl/container/btree_set.h_:s66a:
t/usr/local/clang/include/absl/container/internal/btree_container.hi:s558f:i3e:d ,warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes].
..) _  _558V | A _ AARBGSSL___I
N      T| E        ^R
NAL_X(inserIn file included from ts2/s2closest_cell_query.cc_:o18r:
_In file included from a../src/s2/s2closest_cell_query.hs:s32i:
gIn file included from n../src/s2/s2closest_cell_query_base.h,: 33i:
nIn file included from s/usr/local/clang/include/absl/container/btree_set.he:r66t:
_/usr/local/clang/include/absl/container/internal/btree_container.ho:r531_:a3s:s iwarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
_hin  t531_ | i m pAlB,S Lc_oInNsTtE R&N,A
L      _| X  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(
in  s559e | r t _ o r _ a s s i g n ,   i n s e rcto_nosrt_ a&s,s ifganl_siem,p lt,r uceo,n
s      t|                    ~~~~~~~~~~~~~~~~~~~~~&
, &  &560, |   f a l s e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t_i  t511e | r a t o r ( h i n t )A BASBLS_LI_NITNETRENRANLA_LA_TCTORMIMBAU)T;E
_      C| A                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~P
TUR/usr/local/clang/include/absl/container/internal/btree_container.hE:D511_:B47Y:( tnote: hexpanded from macro 'ABSL_INTERNAL_X'i
s)))   511  |                      A B S L _ I N T E R N A\L
_      A| T                                                   ^T
RI/usr/local/clang/include/absl/container/internal/common.hB:U32T:E9_:C Anote: Pmacro 'ABSL_INTERNAL_IF_false' defined hereT
URE   D32_ | B#Yd(etfhiinse) )A)B S L _ I N T E R N A L _ I F _ f a l s e ( i f _\s
a      t| i                                              ^~~~s
fied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |       /usr/local/clang/include/absl/container/internal/btree_container.h : 533 : 3A:B Swarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
IN  T533E | R N AALB_SALT_TIRNITBEURTNEA_LC_AXP(TiUnRsEeDr_tB_Yo(rt_haisss)i)g,n ,   i n s e r t _ o r _ a s s i g n _ i m p l ,\ 
c      o| n                                                   ^s
t /usr/local/clang/include/absl/container/internal/common.h&:,31 :&9&:,  note: fmacro 'ABSL_INTERNAL_IF_true' defined herea
lse   ,31
 |       #| d  ^e
fi/usr/local/clang/include/absl/container/internal/btree_container.hn:e509 :A52B:S Lnote: _expanded from macro 'ABSL_INTERNAL_X'I
NTE  R509N | A L _ I F _ t r u e (AiBfS_Ls_aItNiTsEfRiNeAdL,_ A.T.T.R)I BiUfT_Es_aCtAiPsTfUiReEdD
_      B| Y        ^(
this)),       In file included from  s2/s2closest_edge_query.cc : 18 :
 In file included from  ../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h :\66
:
      | /usr/local/clang/include/absl/container/internal/btree_container.h                                                   ^:
561:3/usr/local/clang/include/absl/container/internal/common.h:: 32:warning: 9'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: macro 'ABSL_INTERNAL_IF_false' defined here
  561    | 32  |  #AdBeSfLi_nIeN TAEBRSNLA_LI_NXT(EiRnNsAeLr_tI_Fo_rf_aalsssei(ginf,_ siantsiesrfti_eodr,_ a.s.s.i)g n___hViAn_tA_RiGmSp_l_,
       c| o        ^n
st &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In file included from 562s2/s2closest_cell_query.cc | : 18 :
 In file included from  ../src/s2/s2closest_cell_query.h : 32 :
 In file included from  ../src/s2/s2closest_cell_query_base.h : 33 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.hc:o533n:s3t:  &warning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
tru  e533, |   f aAlBsSeL,_
I      N| T                  ~~~~~~~~~~~~~~~~~~~~~E
RNA  L563_ | X ( i n s e r t _ o r _ a s s i g n ,c oinnsste_ritt_eorra_taosrs(ihginn_ti)m pAlB,S Lc_oInNsTtE R&N,A L&_&C,O MfMaAl)s;e
,      
|                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.h::509511::4752::  note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'ABSL_INTERNAL_X'

    511509 |  |                     AABBSSLL__IINNTTEERRNNAALL__AATTTTRRIIBBUUTTEE__CCAAPPTTUURREEDD__BBYY((tthhiiss))))),                                                \\

            | |                                                    ^                                              ^~~~

/usr/local/clang/include/absl/container/internal/common.h:31:9: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here561
:3:    31warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
de/usr/local/clang/include/absl/container/internal/btree_container.hf:i511n:In file included from e52s2/s2crossing_edge_query.cc ::A 18Bnote: :
Sexpanded from macro 'ABSL_INTERNAL_X'In file included from L
../src/s2/s2crossing_edge_query.h_:I31N  :
T511In file included from E | ../src/s2/s2padded_cell.hR :N 23A :
L In file included from _ ../src/s2/s2cell_id.hI :F 43_ t:
 rIn file included from  u../src/s2/s1angle.hAe:B(28Si:
LfIn file included from __../src/s2/s2point.hIsN:aT27tE:
iRIn file included from sN../src/s2/s2coder.hfAi:Le23_d:
A,T /usr/local/clang/include/absl/status/status.hT.:R.725I.:B)38U T:iE f_warning: _Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sA
aPtTiUs  fR725Ei | De _d B
sY      (t| ta        ^ht
iisc) )s)t a t u s _ i n tIn file included from  es2/s2closest_cell_query.cc r: n18 a:
 lIn file included from  :../src/s2/s2closest_cell_query.h :: S32 t:
 aIn file included from  t../src/s2/s2closest_cell_query_base.h u: s33 R:
 eIn file included from  p/usr/local/clang/include/absl/container/btree_set.h\*:
 66      a:
| b/usr/local/clang/include/absl/container/internal/btree_container.h                                                   ^s:
l533_:/usr/local/clang/include/absl/container/internal/common.hn3:o:32n :n9warning: u:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l 
lnote:  macro 'ABSL_INTERNAL_IF_false' defined hereP
re  p   533a32 | r |  e# TdAoeBMfSoiLdn_ieIf NyAT(BE
SR      LN| _A                                     ^IL
N_TXE(/usr/local/clang/include/absl/base/nullability.hRi:Nn241As:Le22_r:It F_note: _oexpanded from macro 'absl_nonnull'fra
_la  ss241es | (i#igdfne_,fs iaintneis seafrbitse_ldo_,rn _o.an.sn.su)il gl_n ___ViNAmo_pnAlnR,uG lScl_o
_n      
s|       t                     ^|  
&        ^,
 &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   trueIn file included from )s2/s2crossing_edge_query.cc;:
18      :
| In file included from                   ~~~~~../src/s2/s2crossing_edge_query.h
:31:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2padded_cell.h::51123::
47In file included from :../src/s2/s2cell_id.h :43note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s1angle.h:28:
In file included from   ../src/s2/s2point.h511: | 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 /usr/local/clang/include/absl/status/status.h : 732 :A29B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTE  R732N | A L _sAtTaTtRiIcB UcToEn_sCtA PsTtUdR:E:Ds_tBrYi(ntgh*i sa)b)s)l _ n o n n u l l   E m p t y S t r i n g ( ) ; 
\      
|                                   ^| 
                                              ^~~~
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from In file included from s2/s2crossing_edge_query.cc../src/s2/s2closest_edge_query_base.h::1832:
:
In file included from In file included from ../src/s2/s2crossing_edge_query.h/usr/local/clang/include/absl/container/btree_set.h::3166:
:
In file included from ../src/s2/s2padded_cell.h/usr/local/clang/include/absl/container/internal/btree_container.h::23564:
:In file included from 3../src/s2/s2cell_id.h:: 43:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:  27564:
 | In file included from  ../src/s2/s2coder.h :A23B:
S/usr/local/clang/include/absl/status/status.hL:_733I:N29T:E /usr/local/clang/include/absl/container/internal/btree_container.hRwarning: :Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]536A
:L24_:X   (733warning: i | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n 
s es  rt536ta | _t oi rc _  ac so sn is gt n  ,s  t id n: s: es rt tr _ifonargl_*sa esa)sb;is
gl      n_| _n                       ^ho
innn/usr/local/clang/include/absl/container/internal/btree_container.htu:l_496li: m9Mp:lo ,vnote:  emacro 'ABSL_INTERNAL_X' defined herecd
oFnrso  mt496S  | &t#,rd
ie      nf| gi  ^(n
)e; /usr/local/clang/include/absl/container/internal/btree_container.h
A:      B509| S:                            ^L52
_:I /usr/local/clang/include/absl/base/nullability.hN:note: T241expanded from macro 'ABSL_INTERNAL_X'E:
R22N:A   L509note: _ | expanded from macro 'absl_nonnull'X 
( F    u241 n |  c# ,d  e Cf aiAlnBleSe Lea_,bI sNKlTQ_EunRaoNlnA,nL u_MlAQlTu Ta_RlNI,oB nUKnTVuEal_llCu
Ae      P,| T                      ^UM
RVEaDl_uBeY,( t.h.i.s)) ) ,      \ 
        |          ^ 
                \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   In file included from 31s2/s2crossing_edge_query.cc | :#18d:
eIn file included from f../src/s2/s2crossing_edge_query.hi:n31e:
 In file included from A../src/s2/s2padded_cell.hB:S23L:
_In file included from I../src/s2/s2cell_id.hN:T43E:
RIn file included from N../src/s2/s1angle.hA:L28_:
IIn file included from F../src/s2/s2point.h_:t27r:
uIn file included from e../src/s2/s2coder.h(:i23f:
_/usr/local/clang/include/absl/status/status.hs:a751t:i61s:f iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
, ..  .751) |   i fs_tsaattiics fuiiendt
p      t| r        ^_
t Po/usr/local/clang/include/absl/container/internal/btree_container.hi:n535t:e3r:T owarning: RIn file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]es2/s2closest_edge_query.cc
p:(18s:
  tIn file included from 535a../src/s2/s2closest_edge_query.h | t: u34 s:
A_In file included from Bi../src/s2/s2closest_edge_query_base.hSn:Lt32_e:
IrIn file included from Nn/usr/local/clang/include/absl/container/btree_set.hTa:El66R::
N:/usr/local/clang/include/absl/container/internal/btree_container.hAS:Lt564_a:Xt3(u:is nRwarning: se'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ep
r*t _aob  rs564_l | a_ sn soAinBgnSnuL,l_ lIi NnrTs)Ee;Rr
Nt      A_| Lo                                                            ^_r
X_(a/usr/local/clang/include/absl/base/nullability.his:ns241si:egr22nt:__ ionote: mrexpanded from macro 'absl_nonnull'p_
la,s   s241ci | og#nnds,et f ii&nn,se e &ra&tb,_s oltr_r_nuaoesn,sn
iu      gl| nl  ^_ 
h_iN/usr/local/clang/include/absl/container/internal/btree_container.hno:tn509_n:iu52ml:pl l
note: ,      expanded from macro 'ABSL_INTERNAL_X' | 
c                     ^o
n  s509t |   & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     565A | In file included from B s2/s2crossing_edge_query.ccS :L 18_ :
I In file included from N ../src/s2/s2crossing_edge_query.hT :E 31R :
N In file included from  A../src/s2/s2padded_cell.h L: _23 A:
 TIn file included from  T../src/s2/s2cell_id.h R: I43cB:
oUIn file included from nT../src/s2/s1angle.hsE:t_28 C:
&AIn file included from ,P../src/s2/s2point.h T:tU27rR:
uEIn file included from eD../src/s2/s2coder.h,_: B23tY:
r(/usr/local/clang/include/absl/status/status.hute:h,752i
:s      44)| :)                  ~~~~~~~~~~~~~~~~~~~~ ,
warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   566  |       752   |         s  t  a  t  i  c     c  o  n  s  t    cs ot\na
st      tu| _s                                                   ^i_
tien/usr/local/clang/include/absl/container/internal/common.hrt:ae31tr:on9ra:(l h:note: i:macro 'ABSL_INTERNAL_IF_true' defined herenS
tt)a    tA31uB | sS#RLde_epIf*Ni TnaEebR sNAlAB_LSn_LoC_nOInMNuMTlAEl)R ;NR
Ae      Lp| _T                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Io
FP_oti/usr/local/clang/include/absl/container/internal/btree_container.hrn:ut509ee:(r47i(:f
 _      note: s| expanded from macro 'ABSL_INTERNAL_X'a                                           ^
t
is/usr/local/clang/include/absl/base/nullability.h  f:509i241 | e: d22 ,:    .note:  .expanded from macro 'absl_nonnull' .
 )     i241 f | A_#BsdSaeLtf_iiIsnNfeTi EeaRdbN
sA      Ll| __        ^An
ToTnRnIuBlUlT E__NCoAnPnTuUlIn file included from Rls2/s2closest_cell_query.ccE
:D      18_| :
                     ^BIn file included from 
Y../src/s2/s2closest_cell_query.h(:t32h:
iIn file included from s../src/s2/s2closest_cell_query_base.h):)33,:
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 535 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        535  |     \A
B      S| L                                              ^~~~_
INTERNA/usr/local/clang/include/absl/container/internal/btree_container.hL:_564X:(3i:n swarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
t/usr/local/clang/include/absl/container/internal/btree_container.h_:o511r:_52a:s snote: iexpanded from macro 'ABSL_INTERNAL_X'g
n,   i511n | s e r t _ o r _ a s sAiBgSnL__iImNpTlE,R NcAoLn_sAtT T&R,I B&U&T,E _tCrAuPeT,U
R      E| D  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
BY  (536t | h i s ) ) )                          f a l s e ) ; 
        |                    ~~~~~~ 
\
      | /usr/local/clang/include/absl/container/internal/btree_container.h                                                   ^:
509:47/usr/local/clang/include/absl/container/internal/common.h:: 31:note: 9expanded from macro 'ABSL_INTERNAL_X':
 note: macro 'ABSL_INTERNAL_IF_true' defined here
  509 |     31  |  # d e f i n e  AABBSSLL__IINNTTEERRNNAALL__AITFT_RtIrBuUeT(Ei_fC_AsPaTtUiRsEfDi_eBdY,( t.h.i.s)) )i,f _ s a t i s f i e d 
        |          ^ 
         \
In file included from       s2/s2closest_edge_query.cc| :                                              ^~~~18
:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66/usr/local/clang/include/absl/container/internal/btree_container.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h535::5643::3 : warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52  :564  | note:  expanded from macro 'ABSL_INTERNAL_X' 
ABS  L511_ | I N T E R N A L _ X (AiBnSsLe_rItN_ToErR_NaAsLs_iAgTnT,R IiBnUsTeEr_tC_AoPrT_UaRsEsDi_gBnY_(htihnits_)i)m)p l ,   c o n s t   & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     565  |         \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note: cmacro 'ABSL_INTERNAL_IF_false' defined hereo
nst    32& | ,# dterfuien,e  tArBuSeL,_
I      N| T                  ~~~~~~~~~~~~~~~~~~~~E
RNA  L566_ | I F _ f a l s e ( i f _ s a t i s f iceodn,s t._.i.t)e r_a_tVoAr_(AhRiGnSt_)_ 
A      B| S        ^L
_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \In file included from 
s2/s2closest_cell_query.cc      :| 18                                              ^~~~:

In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.h::537568::33::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    537568 |  |     AABBSSLL__IINNTTEERRNNAALL__XX((iinnsseerrtt__oorr__aassssiiggnn,,  iinnsseerrtt__oorr__aassssiiggnn__ihmipnlt,_ icmopnls,t  c&o,n s&t& ,& ,t r&u&e,,

            | |   ^  ^

/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.h::509509::5252::  note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'ABSL_INTERNAL_X'

    509509 |  |                     AABBSSLL__IINNTTEERRNNAALL__AATTTTRRIIBBUUTTEE__CCAAPPTTUURREEDD__BBYY((tthhiiss)))),,                                                \\

            | |                                                    ^                                                   ^

/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/common.h::3231::99::  note: note: macro 'ABSL_INTERNAL_IF_false' defined heremacro 'ABSL_INTERNAL_IF_true' defined here

      3231 |  | ##ddeeffiinnee  AABBSSLL__IINNTTEERRNNAALL__IIFF__ftarlusee((iiff__ssaattiissffiieedd,,  ......))  i_f__VsAa_tAiRsGfSi_e_d

            | |         ^        ^

In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from In file included from ../src/s2/s2closest_edge_query_base.hs2/s2closest_cell_query.cc::3218:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h../src/s2/s2closest_cell_query.h::6632:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2closest_cell_query_base.h::56833::
3In file included from :/usr/local/clang/include/absl/container/btree_set.h :66warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/internal/btree_container.h
:537:3:   568 | warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
ABSL_  I537N | T E RANBASLL__XI(NiTnEsReNrAtL__oXr(_ianssseirgtn_,o ri_nassesritg_no,r _ianssseirgtn__ohri_nats_siimgpnl_,i mcpoln,s tc o&n,s t& &&,,
       &| &  ^,
 t/usr/local/clang/include/absl/container/internal/btree_container.hr:u511e:,52
:       | note:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'ABSL_INTERNAL_X'

  538 |    511  |                      A B S L _ ItNrTuEeR)N;A
L      _| A                  ~~~~~T
TRI/usr/local/clang/include/absl/container/internal/btree_container.hB:U509T:E47_:C Anote: Pexpanded from macro 'ABSL_INTERNAL_X'T
URED  _509B | Y ( t h i s ) ) )    A B S L _ I N T E R N A L _ A T T R I B U T E\_
C      A| P                                                   ^T
UR/usr/local/clang/include/absl/container/internal/common.hE:D32_:B9Y:( tnote: hmacro 'ABSL_INTERNAL_IF_false' defined herei
s))   ,32  |  # d e f i n e   A B S L _ I N T E R N A L _ I\F
_      f| a                                              ^~~~l
se(if_sa/usr/local/clang/include/absl/container/internal/btree_container.ht:i537s:f3i:e dwarning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
./usr/local/clang/include/absl/container/internal/btree_container.h.:.511): 52_:_ Vnote: Aexpanded from macro 'ABSL_INTERNAL_X'_
ARG  S511_ | _ 
        |          ^ 
     ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.hIn file included from :s2/s2closest_edge_query.cc32::
18In file included from :
../src/s2/s2closest_cell_query_base.hIn file included from :../src/s2/s2closest_edge_query.h33::
34In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :../src/s2/s2closest_edge_query_base.h66::
32:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h537::663:
: /usr/local/clang/include/absl/container/internal/btree_container.h:warning: 570'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
537 |     A570B | S L _AIBNSTLE_RINNATLE_RXN(AiLn_sXe(ritn_soerr_ta_sosri_gans,s iignns,e ritn_soerr_ta_sosri_gans_siimgpnl_,h icnotn_sitm p&l,,  &c&o,n sttr u&e,, 
&      &| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |     ^538
 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |       t r u e ) ; 
       A| B                  ~~~~~S
L_I/usr/local/clang/include/absl/container/internal/btree_container.hN:T511E:R47N:A Lnote: _expanded from macro 'ABSL_INTERNAL_X'A
TTR  I511B | U T E _ C A P T U R EADB_SBLY_(ItNhTiEsR)N)A,L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t\h
i      s| )                                                   ^)
) /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # d e f i n e   A\B
S      L| _                                              ^~~~I
NTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_o/usr/local/clang/include/absl/container/internal/btree_container.hr:_541a:s24s:i gwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
 in  s541e | r t _ o r _ a s s i g n _ h i n t _ ifmaplls,e )c;o
n      s| t                       ^ 
&,/usr/local/clang/include/absl/container/internal/btree_container.h :&496&:,9
:       | note:   ^macro 'ABSL_INTERNAL_X' defined here

/usr/local/clang/include/absl/container/internal/btree_container.h:511  :49652 | :# dnote: eexpanded from macro 'ABSL_INTERNAL_X'f
ine   511A | B S L _ I N T E R N AALB_SXL(_FIuNnTcE,R NCAaLl_lAeTeT,R IKBQUuTaEl_,C AMPQTuUaRlE,D _KBVYa(ltuhei,s )M)V)a l u e ,   . . . )           \ 
        |          ^ 
    \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L540_:I3N:T Ewarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
AL_X  (540i | n s eArBtS_Lo_rI_NaTsEsRiNgAnL,_ Xi(nisnesretr_to_ro_ra_sassisging_nh,i nitn_siemrptl_,o rc_oansssti g&n,_ i&m&p,l
,       | &  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~&
, c  o571n | s t   & ,   f a l s e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.hf:a509l:s52e:,  note: texpanded from macro 'ABSL_INTERNAL_X'r
ue,   509c | o n s t _ i t e r a tAoBrS(Lh_iInNtT)E RANBASLL__AITNTTREIRBNUATLE__CCOAMPMTAU)R;E
D      _| B                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Y
(th/usr/local/clang/include/absl/container/internal/btree_container.hi:s511):)47,:   note:  expanded from macro 'ABSL_INTERNAL_X' 
       511  |                      A B S L\_
I      N| T                                                   ^E
RN/usr/local/clang/include/absl/container/internal/common.hA:L32_:A9T:T Rnote: Imacro 'ABSL_INTERNAL_IF_false' defined hereB
UTE   _32C | A#PdTeUfRiEnDe_ BAYB(StLh_iIsN)T)E)R N A L _ I F _ f a l s e ( i f _ s a t i s f i e\d
,       | .                                              ^~~~.
.) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      | /usr/local/clang/include/absl/container/internal/btree_container.h                                                   ^:
572:3/usr/local/clang/include/absl/container/internal/common.h:: 32:warning: 9:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
note: macro 'ABSL_INTERNAL_IF_false' defined here
  572 |     32  | A#BdSeLf_iInNeT EARBNSALL__IXN(TiEnRsNeArLt__IoFr__faaslssieg(ni,f _isnasteirstf_ioerd_,a s.s.i.g)n __h_iVnAt__AiRmGpSl_,_ 
c      o| n        ^s
t &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERIn file included from Ns2/s2closest_cell_query.ccA:L18_:
AIn file included from T../src/s2/s2closest_cell_query.hT:R32I:
BIn file included from U../src/s2/s2closest_cell_query_base.hT:E33_:
CIn file included from A/usr/local/clang/include/absl/container/btree_set.hP:T66U:
R/usr/local/clang/include/absl/container/internal/btree_container.hE:D543_:B23Y:( twarning: hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
s))  ,543  |                                      t r u e )\;

            | |                                                    ^                      ^

/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/btree_container.h::31496::99::  note: note: macro 'ABSL_INTERNAL_IF_true' defined heremacro 'ABSL_INTERNAL_X' defined here

   31   | 496# | d#edfeifnien eA BASBLS_LI_NITNETRENRANLA_LI_FX_(tFruunec(,i fC_aslalteies,f iKeQdu,a l.,. .M)Q uiafl_,s aKtViaslfuiee,d 
M      V| a        ^l
ue, ...)     \In file included from 
s2/s2closest_edge_query.cc      :| 18        ^:

In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |        /usr/local/clang/include/absl/container/internal/btree_container.h : 542 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  tr  u542e | ,   fAaBlSsLe_,I NcToEnRsNtA_Li_tXe(riantsoerr(th_ionrt_)a sAsBiSgLn_,I NiTnEsReNrAtL__oCrO_MaMsAs)i;g
n      _| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~m
pl,/usr/local/clang/include/absl/container/internal/btree_container.h :&509&:,47 :c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t &,   509f | a l s e , 
        |    ^ 
 A/usr/local/clang/include/absl/container/internal/btree_container.hB:S509L:_52I:N Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'R
NAL  _509A | T T R I B U T E _ C AAPBTSULR_EIDN_TBEYR(NtAhLi_sA)T)T,R I B U T E _ C A P T U R E D _ B Y ( t h i s ) )\,
        |                                                ^~~~ 
       /usr/local/clang/include/absl/container/internal/btree_container.h : 572 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511\:
52      :|                                                     ^note: 
expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/container/internal/common.h:32:  9511: |   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # dAeBfSiLn_eI NATBESRLN_AILN_TAETRTNRAILB_UITFE__fCaAlPsTeU(RiEfD__sBaYt(itshfiise)d),)  . . . )   _ _ V A _ A R G S _ _ 
        |          ^ 
   \
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2closest_cell_query.cc::3218::
9In file included from :../src/s2/s2closest_cell_query.h :32note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
../src/s2/s2closest_cell_query_base.h:33:
   In file included from 32/usr/local/clang/include/absl/container/btree_set.h | :#66d:
e/usr/local/clang/include/absl/container/internal/btree_container.hf:i542n:e3 :A Bwarning: Spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L
_IN  T542E | R N AALB_SILF__IfNaTlEsReN(AiLf__Xs(aitnissefrite_do,r _.a.s.s)i g_n_,V Ai_nAsReGrSt___o
r      _| a        ^s
sign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from In file included from s2/s2closest_edge_query.cc/usr/local/clang/include/absl/container/btree_set.h::1866:
:
In file included from ../src/s2/s2closest_edge_query.h/usr/local/clang/include/absl/container/internal/btree_container.h::34542:
:In file included from 3../src/s2/s2closest_edge_query_base.h:: 32:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/container/btree_set.h
:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:  3542: |   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
BSL_  I574N | T E RANBASLL__XI(NiTnEsReNrAtL__oXr(_ianssseirgtn_,o ri_nassesritg_no,r _ianssseirgtn__oirm_pals,s i&g&n,_ hcionnts_ti m&p,l ,f aclosnes,t
       &| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
&&  ,543
 |        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509t | r u e ) ; 
        |                    ~~~~~ 
 AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L511_:I47N:T Enote: Rexpanded from macro 'ABSL_INTERNAL_X'N
AL_  A511T | T R I B U T E _ C A PATBUSRLE_DI_NBTYE(RtNhAiLs_)A)T,T R I B U T E _ C A P T U R E D _ B Y ( t h i s )\)
)       |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e f i\n
e       | A                                              ^~~~B
SL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL/usr/local/clang/include/absl/container/internal/btree_container.h_:X545(:i24n:s ewarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
_or  _545a | s s i g n ,   i n s e r t _ o r _ a sfsailgsne_)h;i
n      t| _                       ^i
mp/usr/local/clang/include/absl/container/internal/btree_container.hl:,496 :c9o:n snote: tmacro 'ABSL_INTERNAL_X' defined here 
&,   &496& | ,#
d      e| f  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
ne   A575B | S L _ I N T E R N A L _ X ( F u n c ,t rCuael,l eter,u eK,Q ucaoln,s tM_Qiutaelr,a tKoVra(lhuien,t )M VAaBlSuLe_,I N.T.E.R)N A L _ C O\M
M      A| )        ^;

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 544 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
ABSL  _544I | N T EARBNSALL__IANTTTERRINBAULT_EX_(CiAnPsTeUrRtE_Do_rB_Ya(stshiigsn),) )i n s e r t _ o r _ a s s i g n _ i m p l ,   & &\,
       c| o                                                   ^n
st/usr/local/clang/include/absl/container/internal/common.h :&31,: 9t:r unote: emacro 'ABSL_INTERNAL_IF_true' defined here,

      |      ^31
 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e509f:i52n:e  note: Aexpanded from macro 'ABSL_INTERNAL_X'B
SL_  I509N | T E R N A L _ I F _ tArBuSeL(_iIfN_TsEaRtNiAsLf_iAeTdT,R I.B.U.T)E _iCfA_PsTaUtRiEsDf_iBeYd(
t      h| i        ^s
)),        In file included from  s2/s2closest_edge_query.cc : 18 :
 In file included from  ../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h\:
66      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                                                   ^:
574:3/usr/local/clang/include/absl/container/internal/common.h:: 31:warning: 9'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
  574 |     31  | A#BdSeLf_iInNeT EARBNSALL__IXN(TiEnRsNeArLt__IoFr__tarsusei(ginf,_ siantsiesrfti_eodr,_ a.s.s.i)g ni_fh_isnatt_iismfpile,d 
c      o| n        ^s
t &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575In file included from  | s2/s2closest_cell_query.cc : 18 :
 In file included from  ../src/s2/s2closest_cell_query.h : 32 :
 In file included from  ../src/s2/s2closest_cell_query_base.h : 33 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
t/usr/local/clang/include/absl/container/internal/btree_container.hr:u544e:,3 :t rwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
, con  s544t | _ i tAeBrSaLt_oIrN(ThEiRnNtA)L _AXB(SiLn_sIeNTrEtR_NoArL__aCsOsMiMgAn),; 
i      n| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
rt_/usr/local/clang/include/absl/container/internal/btree_container.ho:r511_:a47s:s inote: gexpanded from macro 'ABSL_INTERNAL_X'n
_imp  l511, |   & & ,   c o n s t  A&B,S Lt_rIuNeT,E
R      N| A  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
_A  T545T | R I B U T E _ C A P T U R E D _ B Y (ftahlisse)));)
        |                    ~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
       509  |     \ 
        |                                                ^~~~ 
   ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABIn file included from Ss2/s2debug.ccL:_18I:
NIn file included from T../src/s2/s2debug.hE:R55N:
AIn file included from L../src/s2/base/commandlineflags.h_:I21F:
_In file included from f/usr/local/clang/include/absl/flags/flag.ha:l42s:
eIn file included from (/usr/local/clang/include/absl/flags/internal/flag.hi:f40_:
sIn file included from a/usr/local/clang/include/absl/flags/marshalling.ht:i207s:
fIn file included from i/usr/local/clang/include/absl/numeric/int128.he:d41,:
 ./usr/local/clang/include/absl/types/compare.h.:.78/usr/local/clang/include/absl/container/internal/btree_container.h):: 22577_::_ 3V:warning: A 'enable_if' is a clang extension [-Wgcc-compat]_
warning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R
GS   _78  _ | 577
  |         |           ^ A 
B S_L__aItNtTrEiRbNuAtLe__X_((i(nesnearbtl_eo_ri_fa(sns i=g=n ,0 ,i n"sOenrlty_ olri_taesrsailg n`_0h`i nits_ iamlpllo,w e&d&.," )c)o)n s{t} 
&      ,| 
                     ^      
|   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |      In file included from  s2/s2closest_cell_query.cc : 18 :
 In file included from A../src/s2/s2closest_cell_query.hB:S32L:
_In file included from I../src/s2/s2closest_cell_query_base.hN:T33E:
RIn file included from N/usr/local/clang/include/absl/container/btree_set.hA:L66_:
A/usr/local/clang/include/absl/container/internal/btree_container.hT:T547R:I23B:U Twarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
CAP  T547U | R E D _ B Y ( t h i s ) ) ,         t r u e ) ; 
        |                        ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here\

      |                                                    ^  
496 | #/usr/local/clang/include/absl/container/internal/common.hd:e32f:i9n:e  note: Amacro 'ABSL_INTERNAL_IF_false' defined hereB
SL_   I32N | T#EdReNfAiLn_eX (AFBuSnLc_,I NCTaElRlNeAeL,_ IKFQ_ufaall,s eM(Qiufa_ls,a tKiVsafliueed,,  M.V.a.l)u e_,_ V.A._.A)R G S _ _ 
\      
|               ^| 
        ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/container/internal/btree_container.h511::54652::3 : note: warning: expanded from macro 'ABSL_INTERNAL_X'
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  511 |    546  |      A B S L _ IANBTSELR_NIANLT_EXR(NiAnLs_eArTtT_RoIrB_UaTsEs_iCgAnP,T UiRnEsDe_rBtY_(otrh_iass)s)i)g n _ i m p l ,   & & ,   c o n s t   & ,   t r u\e
,      
|                                                          ^| 
  ^
/usr/local/clang/include/absl/container/internal/common.h:32/usr/local/clang/include/absl/container/internal/btree_container.h::9509:: 52:note:  macro 'ABSL_INTERNAL_IF_false' defined herenote: 
expanded from macro 'ABSL_INTERNAL_X'
   32 |   #509d | e f i n e   A B S L _AIBNSTLE_RINNATLE_RINFA_Lf_aAlTsTeR(IiBfU_TsEa_tCiAsPfTiUeRdE,D _.B.Y.()t h_i_sV)A)_,A R G S _ _ 
        |          ^ 
              \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insIn file included from es2/s2closest_edge_query.ccr:t18_:
oIn file included from r../src/s2/s2closest_edge_query.h_:a34s:
sIn file included from i../src/s2/s2closest_edge_query_base.hg:n32_:
iIn file included from m/usr/local/clang/include/absl/container/btree_set.hp:l66,:
 /usr/local/clang/include/absl/container/internal/btree_container.h&:&579,: 3c:o nwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
 &,   t579r | u e ,A
B      S| L  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
IN  T547E | R N A L _ X ( i n s e r t _ o r _ a stsriugen),; 
i      n| s                  ~~~~~e
rt_/usr/local/clang/include/absl/container/internal/btree_container.ho:r509_:a47s:s inote: gexpanded from macro 'ABSL_INTERNAL_X'n
_hi  n509t | _ i m p l ,   & & ,  AcBoSnLs_tI N&T,E
R      N| A  ^L
_A/usr/local/clang/include/absl/container/internal/btree_container.hT:T509R:I52B:U Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'_
CAP  T509U | R E D _ B Y ( t h i sA)B)S,L _ I N T E R N A L _ A T T R I B U T E _ C A P T\U
R      E| D                                              ^~~~_
BY(this)/usr/local/clang/include/absl/container/internal/btree_container.h):,546 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511:52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |       \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.hA:B32S:L9_:I Nnote: Tmacro 'ABSL_INTERNAL_IF_false' defined hereE
RNA   L32_ | A#TdTeRfIiBnUeT EA_BCSALP_TIUNRTEEDR_NBAYL(_tIhFi_sf)a)l)s e ( i f _ s a t i s f i e d ,   . . . )   _ _ V\A
_      A| R                                                   ^G
S_/usr/local/clang/include/absl/container/internal/common.h_:
31      :| 9        ^:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #In file included from ds2/s2closest_edge_query.cce:f18i:
nIn file included from e../src/s2/s2closest_edge_query.h :A34B:
SIn file included from L../src/s2/s2closest_edge_query_base.h_:I32N:
TIn file included from E/usr/local/clang/include/absl/container/btree_set.hR:N66A:
L/usr/local/clang/include/absl/container/internal/btree_container.h_:I579F:_3t:r uwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](
if_s  a579t | i s fAiBeSdL,_ I.N.T.E)R NiAfL__sXa(tiinssfeiretd_
o      r| _        ^a
ssign, insert_In file included from os2/s2closest_cell_query.ccr:_18a:
sIn file included from s../src/s2/s2closest_cell_query.hi:g32n:
_In file included from h../src/s2/s2closest_cell_query_base.hi:n33t:
_In file included from i/usr/local/clang/include/absl/container/btree_set.hm:p66l:
,/usr/local/clang/include/absl/container/internal/btree_container.h :&546&:,3 :c owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
t &,
        546|  |   ^ 
 A/usr/local/clang/include/absl/container/internal/btree_container.hB:S511L:_52I:N Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'R
NAL  _511X | ( i n s In file included from e rs2/s2crossing_edge_query.cc t: _18 o:
 rIn file included from  _../src/s2/s2crossing_edge_query.hAa:Bs31Ss:
LiIn file included from _g../src/s2/s2padded_cell.hIn:N,23T :
EiIn file included from Rn../src/s2/s2cell_id.hNs:AeL43r_:
AtIn file included from T_../src/s2/s1angle.hTo:Rr28I_:
BaIn file included from Us../src/s2/s2point.hsT:iE27g_:
nCIn file included from _A../src/s2/s2coder.hiP:mT23pU:
lR,E/usr/local/clang/include/absl/status/status.h D:&_1031&B:,Y42 (:ct ohwarning: nitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ss
t) )&),    1031t  | r iu ne l, i
 n       e|     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ c
 o n   s547 t |     s  t  a  t  u  s  _  i \n 
t       e | r                                                    ^n 
a l /usr/local/clang/include/absl/container/internal/common.h: :: 31St:tr9au:te u)note: s;macro 'ABSL_INTERNAL_IF_true' defined hereR

e      p| *                  ~~~~~    
31a | b#/usr/local/clang/include/absl/container/internal/btree_container.hsd:le511_f:ni47on:ne n note: uAexpanded from macro 'ABSL_INTERNAL_X'lB
lS LS_  tI511aN | tT uE sR :N :A RL e_ pI TF o_ PtAorBiuSneLt(_eiIrfN(_T
sE      aR| tN                                         ^iA
sLf_iA/usr/local/clang/include/absl/base/nullability.heT:dT241,R: I22.B:.U .Tnote: )Eexpanded from macro 'absl_nonnull' _
iCfA  _Ps241Ta | Ut#RidEseDff_iiBenYde(
 ta      hb| is        ^sl
)_)n)o n n u l l   _ N oIn file included from  ns2/s2closest_edge_query.ccn :u 18l :
l In file included from 
 ../src/s2/s2closest_edge_query.h       :|  34                     ^ :

 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from \/usr/local/clang/include/absl/container/btree_set.h
:      66| :
                                              ^~~~/usr/local/clang/include/absl/container/internal/btree_container.h
:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insIn file included from es2/s2crossing_edge_query.ccr:t18_:
oIn file included from r../src/s2/s2crossing_edge_query.h_:a31s:
sIn file included from i../src/s2/s2padded_cell.hg:n23_:
hIn file included from i../src/s2/s2cell_id.hn:t43_:
iIn file included from m../src/s2/s1angle.hp:l28,:
 In file included from &../src/s2/s2point.h&:,27 :
cIn file included from o../src/s2/s2coder.hn:s23t:
 /usr/local/clang/include/absl/status/status.h&:,1038
:      33| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  580 |    1038  |          s t a t u s _ i n t ef/usr/local/clang/include/absl/container/internal/btree_container.hra:nl550as:le24:,::  Stwarning: trpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ua
et,u   s550cR | oe np s* t  _a ib ts el r_ an to on rn (u hl il n  tr )ef paA)lB sS{eL
)_      ;I| 
N                                ^      T
| E                       ^R
/usr/local/clang/include/absl/base/nullability.hN:A241L:_22/usr/local/clang/include/absl/container/internal/btree_container.hC::O 496M:note: M9expanded from macro 'absl_nonnull'A:
) ;  note: 
241macro 'ABSL_INTERNAL_X' defined here       | 
| #                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
  e496f | /usr/local/clang/include/absl/container/internal/btree_container.hi#:nd511ee: f47ai:bn senote: l expanded from macro 'ABSL_INTERNAL_X'_A
nBoSnL  n_511uI | lN lT  E _R NN oA nL n_ uX l( lFA
uB      nS| cL                     ^,_
 ICNaTlElReNeA,L _KAQTuTaRlI,B UMTQEu_aClA,P TKUVRaElDu_eB,Y (MtVhailsu)e),)  . . . )           \ 
        |          ^ 
         \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INIn file included from Ts2/s2crossing_edge_query.ccE:R18N:
AIn file included from L../src/s2/s2crossing_edge_query.h_:X31(:
iIn file included from n../src/s2/s2padded_cell.hs:e23r:
tIn file included from _../src/s2/s2cell_id.ho:r43_:
aIn file included from s../src/s2/s1angle.hs:i28g:
nIn file included from ,../src/s2/s2point.h :i27n:
sIn file included from e../src/s2/s2coder.hr:t23_:
o/usr/local/clang/include/absl/status/status.hr:_1063a:s13s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
imp l1063, |  c&o&n,s t& &c,h afra*l saeb,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l509l: 52S:t anote: texpanded from macro 'ABSL_INTERNAL_X'u
sMe  s509/usr/local/clang/include/absl/container/internal/btree_container.hs | :a 581g :e 3A :s  C warning: S passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t 
r ( 
A        B| 581S            ^ | L
 _ IAN/usr/local/clang/include/absl/base/nullability.hBT:SE241LR:_N22IA:NL T_note: EAexpanded from macro 'absl_nonnull'RT
NTAR  LI241_B | XU#(TdiEen_fsCieAnrPetT _UaoRbrEs_Dla__sBnsYoi(ngtnnhu,il sli) n)_s,Ne or nt n_ uo lr l_ 
a       s | s                      ^i 
g n _ h i n t _ i m p l ,  \&
&      ,|                                                     ^c
on/usr/local/clang/include/absl/container/internal/common.hs:t32 :&9,:
       | note:   ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/container/internal/btree_container.h:   50932: | 52#:d enote: fexpanded from macro 'ABSL_INTERNAL_X'i
ne   A509B | S L _ I N T E R N A LA_BISFL__fIaNlTsEeR(NiAfL__sAaTtTiRsIfBiUeTdE,_ C.A.P.T)U R_E_DV_AB_YA(RtGhSi_s_)
)      ,|          ^ 
          In file included from  s2/s2closest_cell_query.cc : 18 :
 In file included from  ../src/s2/s2closest_cell_query.h : 32 :
 In file included from  ../src/s2/s2closest_cell_query_base.h :\33
:
      In file included from | /usr/local/clang/include/absl/container/btree_set.h                                                   ^:
66:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/common.h::54931::39::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]macro 'ABSL_INTERNAL_IF_true' defined here

     31549 |  | # d eAfBiSnLe_ IANBTSELR_NIANLT_EXR(NiAnLs_eIrFt__torru_ea(sisfi_gsna,t iisnfsieerdt,_ o.r._.a)s isfi_gsna_tiimspfli,e d&
&      ,|          ^&
&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 511s2/s2closest_edge_query.cc::5218::
 In file included from ../src/s2/s2closest_edge_query.hnote: :expanded from macro 'ABSL_INTERNAL_X'34
:
In file included from ../src/s2/s2closest_edge_query_base.h:32  :
511In file included from  | /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 581 : 3 :  Awarning: B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]S
L_I  N581T | E R NAABLS_LA_TITNRTIEBRUNIn file included from Ts2/s2convex_hull_query.ccAE:_L26C_:
AXIn file included from P(../src/s2/s2convex_hull_query.hTi:Un27Rs:
EeIn file included from Dr../src/s2/s2loop.h_t:B_34Yo:
(rIn file included from t_../src/s2/mutable_s2shape_index.hha:is30ss:
)iIn file included from )g/usr/local/clang/include/absl/container/btree_map.h)n: ,66  :
 iIn file included from  n/usr/local/clang/include/absl/container/internal/btree.h s: e70 r:
 tIn file included from  _/usr/local/clang/include/absl/container/internal/layout.h o: r198 _:
 aIn file included from  s/usr/local/clang/include/absl/strings/str_cat.h s: i116 g:
 nIn file included from  _/usr/local/clang/include/absl/strings/internal/stringify_sink.h h: i23 n:
 t _/usr/local/clang/include/absl/strings/numbers.h\i:
m66      p:| l41                                                   ^,:
  &/usr/local/clang/include/absl/container/internal/common.hwarning: &:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],32
 :c9o:n    s66note: t | macro 'ABSL_INTERNAL_IF_false' defined here  
& , 
           32|   |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
 d e f   i582 n |  e     A  B  S  L  _  I  N  T  E  R  N  A  L  _  I  F i_tnfrtau_lets,ye p(feia*fl _saseba,st lic_sonfnoisnetnd_u,il tl.e .ro.au)tt o)_r;_(
Vh      Ai| _n                                        ^At
R)G SA/usr/local/clang/include/absl/base/nullability.h_B:_S241
L:      _22| I:        ^N 
Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | C#OdMeMfAi)n;e
       a| b                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
l_n/usr/local/clang/include/absl/container/internal/btree_container.ho:n509n:u47l:l  note: _expanded from macro 'ABSL_INTERNAL_X'N
onnu  l509l | 
        |                       ^ 
  In file included from  s2/s2closest_cell_query.cc : 18 :
AIn file included from B../src/s2/s2closest_cell_query.hS:L32_:
IIn file included from N../src/s2/s2closest_cell_query_base.hT:E33R:
NIn file included from A/usr/local/clang/include/absl/container/btree_set.hL:_66A:
T/usr/local/clang/include/absl/container/internal/btree_container.hT:R551I:B79U:In file included from T s2/s2convex_hull_query.ccE:warning: _26passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]C:

AIn file included from P../src/s2/s2convex_hull_query.hT:U  27R551:
E | In file included from D ../src/s2/s2loop.h_ :BA34YB:
(SIn file included from tL../src/s2/mutable_s2shape_index.hh_:iI30sN:
)TIn file included from )E/usr/local/clang/include/absl/container/btree_map.h,R: N66 A:
 LIn file included from  _/usr/local/clang/include/absl/container/internal/btree.h X: (70 i:
 nIn file included from  s/usr/local/clang/include/absl/container/internal/layout.h e: r198 t:
 _In file included from  o/usr/local/clang/include/absl/strings/str_cat.h r: _116 a:
 sIn file included from  s/usr/local/clang/include/absl/strings/internal/stringify_sink.h i: g23 n:
 ,/usr/local/clang/include/absl/strings/numbers.h  :\i77
n:      s61| e:                                              ^~~~r 
twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_a/usr/local/clang/include/absl/container/internal/btree_container.hs   :s77581i | :g[3n[:_n iowarning: mdpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]pi
ls,c/usr/local/clang/include/absl/container/internal/btree_container.h a:&r511&d:,]52 ]:&  &bnote: ,oexpanded from macro 'ABSL_INTERNAL_X' o
fla lS  si511em | ,p  l te rA ut eo )f ;( 
a       b | sA                                                                              ^lB
:S:L/usr/local/clang/include/absl/container/internal/btree_container.hs:_t496Ir:Ni9Tn:Eg R_note: Nvmacro 'ABSL_INTERNAL_X' defined hereAi
Le_wA   Ts496Tt | Rr#I,dB eUffTliEon_aeCt A*AP BTaSUbLRs_ElID_N_nTBoEYnR(nNtuAhlLil_s X)o()uF)tu )n ;c 
,         | C                                                             ^a 
l l /usr/local/clang/include/absl/base/nullability.he :e 241, :  22K :Q  u note: a expanded from macro 'absl_nonnull'l 
,     M 241Q  | u #a dl\e,
f       iK| nV                                                   ^ea
 la/usr/local/clang/include/absl/container/internal/common.hub:es32,l: _9Mn:Vo annote: lnmacro 'ABSL_INTERNAL_IF_false' defined hereuu
el,l     .32_. | N.#o)dn en fu il nl e
\       A
B|       S                     ^| L
        ^_
INTERNAL_IF_false(if_satisfiIn file included from es2/s2convex_hull_query.ccd:,26 :
.In file included from .../src/s2/s2convex_hull_query.h.:)27 :
_In file included from _../src/s2/s2loop.hV:A34_:
AIn file included from R../src/s2/mutable_s2shape_index.hG:S30_:
_In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66        ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::/usr/local/clang/include/absl/container/internal/btree_container.hs:t551r:i3n:g _warning: vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ew s  t551r | ,   dAoBuSbLl_eI*N TaEbRsNlA_Ln_oXn(niunlsle rotu_to)r;_
a      s| s                                                             ^i
gn/usr/local/clang/include/absl/base/nullability.h,: 241i:n22s:e rnote: texpanded from macro 'absl_nonnull'_
or  _241a | s#sdiegfni_niem palb,s l&_&n,o n&n&u,l lf a_lNsoen,n utlrlu
e      )| ;                     ^

      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |     In file included from  s2/s2convex_hull_query.cc : 26 :
 In file included from  ../src/s2/s2convex_hull_query.hA:B27S:
LIn file included from _../src/s2/s2loop.hI:N34T:
EIn file included from R../src/s2/mutable_s2shape_index.hN:A30L:
_In file included from A/usr/local/clang/include/absl/container/btree_map.hT:T66R:
IIn file included from B/usr/local/clang/include/absl/container/internal/btree.hU:T70E:
_In file included from C/usr/local/clang/include/absl/container/internal/layout.hA:P198T:
UIn file included from R/usr/local/clang/include/absl/strings/str_cat.hIn file included from E:s2/s2closest_edge_query.ccD116:_:
18BIn file included from :
Y/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from (:../src/s2/s2closest_edge_query.ht23:h:
34i/usr/local/clang/include/absl/strings/numbers.h:
s:In file included from )98../src/s2/s2closest_edge_query_base.h)::,60 32: :
  In file included from warning:  /usr/local/clang/include/absl/container/btree_set.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h    :98 583 |  :[ 3[ : n o warning: d passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] i
 s c a r   d583 ] |  ] \  
bA      oB| oS                                                   ^lL
 _SI/usr/local/clang/include/absl/container/internal/common.hiN:mT32pE:lR9eN:AA Ltnote: _omacro 'ABSL_INTERNAL_IF_false' defined hereXb(
(ian   bs32se | lr#:td:_esoftrir_niaens gsA_iBvgSinLe,_w I iNsnTtsEreR,rN tAb_Loo_orIl_F*a_ sfasabilsgslne__(nhioifnn_ntsu_alitlmi psolfu,it e)&d;&,
,        .| c.                                                           ^o.
n)s /usr/local/clang/include/absl/base/nullability.ht_: _241&V:,A22
_:      A | Rnote:   ^Gexpanded from macro 'absl_nonnull'
S
_/usr/local/clang/include/absl/container/internal/btree_container.h_  :
241509       | :| #52        ^d:e
 fnote: iexpanded from macro 'ABSL_INTERNAL_X'n
e a  bIn file included from 509ss2/s2closest_cell_query.cc | l: _ 18n :
o In file included from n ../src/s2/s2closest_cell_query.hn :u 32l :
l In file included from   ../src/s2/s2closest_cell_query_base.h_A:NB33oS:
nLIn file included from n_/usr/local/clang/include/absl/container/btree_set.huI:lN66lT:

E      /usr/local/clang/include/absl/container/internal/btree_container.hR| :N                     ^551A
:L3_:A Twarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R
IBUT  E551_ | C A PATBUSRLE_DI_NBTYIn file included from E(s2/s2convex_hull_query.ccRt:Nh26Ai:
LsIn file included from _)../src/s2/s2convex_hull_query.hX):(,27i :
n In file included from s ../src/s2/s2loop.he :r 34t :
_ In file included from o ../src/s2/mutable_s2shape_index.hr :_ 30a :
s In file included from s /usr/local/clang/include/absl/container/btree_map.h i: g66 n:
 ,In file included from   /usr/local/clang/include/absl/container/internal/btree.h i: n70 s:
 eIn file included from  r/usr/local/clang/include/absl/container/internal/layout.h t:\_198
o:
      rIn file included from | _/usr/local/clang/include/absl/strings/str_cat.h                                                   ^a:
s116s:
/usr/local/clang/include/absl/container/internal/common.hiIn file included from :g/usr/local/clang/include/absl/strings/internal/stringify_sink.h31n::_239i:
:m /usr/local/clang/include/absl/strings/numbers.hp:note: l112macro 'ABSL_INTERNAL_IF_true' defined here,:
 44&:&    ,31warning:   | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&#
&d,e f  fi112an | le s  eA ,B  S tL r_ uI eN )T ;E 
R       N | A   ^L 
_ I /usr/local/clang/include/absl/container/internal/btree_container.hF _: t511 r: u52 e: (  inote:  fexpanded from macro 'ABSL_INTERNAL_X' _
 s a t   i511 s |  f  i ie nd t, _  t. y. p. e) * A iBafSb_Lss_laI_tNniTosEnfRniNueAldLl
_       Ao| Tu        ^Tt
R)I;B
U      T| E                                           ^_
CA/usr/local/clang/include/absl/base/nullability.hP:T241U:R22In file included from E:s2/s2closest_edge_query.ccD :_18note: B:
expanded from macro 'absl_nonnull'YIn file included from 
(../src/s2/s2closest_edge_query.ht:  h34241i:
 | sIn file included from #)../src/s2/s2closest_edge_query_base.hd):e)32f :
i In file included from n /usr/local/clang/include/absl/container/btree_set.he :  66a :
b /usr/local/clang/include/absl/container/internal/btree_container.hs :l 583_ :n 3o :n  n warning: u 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l 
l   _ N   o 583n  | n  u  l\Al
B
      S      | L|                                                    ^_                     ^
I
N/usr/local/clang/include/absl/container/internal/common.hT:E31R:N9A:L _note: Xmacro 'ABSL_INTERNAL_IF_true' defined here(
ins   e31r | t#_doerf_iansesIn file included from  is2/s2convex_hull_query.ccAg:Bn26S,:
L In file included from _i../src/s2/s2convex_hull_query.hIn:Ns27Te:
ErIn file included from Rt../src/s2/s2loop.hN_:Ao34Lr:
__In file included from Ia../src/s2/mutable_s2shape_index.hFs:_s30ti:
rgIn file included from un/usr/local/clang/include/absl/container/btree_map.he_:(h66ii:
fnIn file included from _t/usr/local/clang/include/absl/container/internal/btree.hs_:ai70tm:
ipIn file included from sl/usr/local/clang/include/absl/container/internal/layout.hf,:i 198e&:
d&In file included from ,,/usr/local/clang/include/absl/strings/str_cat.h  :.c116.o:
.nIn file included from )s/usr/local/clang/include/absl/strings/internal/stringify_sink.h t:i 23f&:
_,/usr/local/clang/include/absl/strings/numbers.hs
:a      116t| :i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~55s
:f iwarning:   etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d584

 |        |          ^   
116  |                      In file included from   s2/s2closest_cell_query.cc  :  18 t:
 rIn file included from u ../src/s2/s2closest_cell_query.he :, 32  :
t In file included from r u../src/s2/s2closest_cell_query_base.h e: ,33  :
 cIn file included from  o/usr/local/clang/include/absl/container/btree_set.h n: s66 t:
 _/usr/local/clang/include/absl/container/internal/btree_container.h i: t551 e: r3 a: t  owarning:  r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] (
 haibnstl  ):551 : | Ai Bn StAL1B_2SI8LN*_T IEaNRbTNsEAlRL_N_nACoLOn_MnXMu(Ali)ln; s
oe      ur| tt_                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)o
;r
_      a/usr/local/clang/include/absl/container/internal/btree_container.h| s:                                                      ^s509
i:g47/usr/local/clang/include/absl/base/nullability.hn::, 241 :note: i22expanded from macro 'ABSL_INTERNAL_X'n:
s enote: rexpanded from macro 'absl_nonnull'  t
509_ | o   r241 _ |  a# sd se if gi nn _e i AmaBpbSlsL,l_ _I&nN&oT,nE nR&uN&lA,lL  _f_AaNTloTsnRenI,uB lUtlTr
Eu      _e| )In file included from C                     ^;s2/s2coords.cc
A
P:T      18U| :
R  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~EIn file included from 
D../src/s2/s2coords.h_:B108/usr/local/clang/include/absl/container/internal/btree_container.hY:
:(In file included from 511t../src/s2/s2point.h:h:47i27:s:
 )In file included from note: )../src/s2/s2coder.hexpanded from macro 'ABSL_INTERNAL_X',:
 23 :
 In file included from   In file included from  /usr/local/clang/include/absl/status/status.h511s2/s2convex_hull_query.cc : | : 67 26 :
 :
  In file included from In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2convex_hull_query.h   ::  2927  :
:
  In file included from In file included from   /usr/local/clang/include/absl/strings/cord.h../src/s2/s2loop.h A:: B8634 S:
:
 LIn file included from /usr/local/clang/include/absl/strings/cord_analysis.h _../src/s2/mutable_s2shape_index.h: I:N32 30 T::
 E47In file included from  R:N/usr/local/clang/include/absl/container/btree_map.h\ A:
warning: L66_      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
A| 
In file included from T                                              ^~~~/usr/local/clang/include/absl/container/internal/btree.hT
:R   70I32:
B | In file included from UsT/usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/container/internal/btree_container.hiE:_:z198eC583A:
_:tPIn file included from T3 /usr/local/clang/include/absl/strings/str_cat.hGU::eR E116twarning: ED:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s_In file included from B
t/usr/local/clang/include/absl/strings/internal/stringify_sink.hY/usr/local/clang/include/absl/container/internal/btree_container.hi:m(:23at511:
the:/usr/local/clang/include/absl/strings/numbers.hid52:sM:118)e :)m56onote: r): expanded from macro 'ABSL_INTERNAL_X'y U 
warning: s type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a 
   g 511e  |    ( 118 c  |   o n     s t      C o r d    R e p * A   Ba   Sb   Ls l _ _ I\ n oNn
n T      u E | lR N                                              ^~~~l  A
 rL e_ Ap )T ;T 
R I       B|  U                                              ^ T
 E _ /usr/local/clang/include/absl/base/nullability.hC :A 241P :T 22U :R  Eanote: Dbexpanded from macro 'absl_nonnull'_s
BlY:  (:241tuh | ii#nsdt)e1)f2)i8 n* e   a ab bs sl l_ _n no on nn nu ul ll l   o _u Nt o) n; n
 u       l|  l                                                       ^\


            | | /usr/local/clang/include/absl/base/nullability.h                     ^                                                   ^:

241:22/usr/local/clang/include/absl/container/internal/common.h:: 31:note: 9expanded from macro 'absl_nonnull':
 note:   macro 'ABSL_INTERNAL_IF_true' defined here241
/usr/local/clang/include/absl/container/internal/btree_container.h |    :#31552d | :e#79fd:ie nfwarning: eipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] nIn file included from 
aes2/s2coords.ccb :sA  18lB552:
_S | In file included from nL ../src/s2/s2coords.ho_ :nIAN108nBT:
uSEIn file included from lLR../src/s2/s2point.hl_N: IA27_NL:
NT_In file included from oEI../src/s2/s2coder.hnRF:nN_23uAt:
lLrIn file included from l_u/usr/local/clang/include/absl/status/status.h
Xe:      ((67| ii:
                     ^nfIn file included from 
s_/usr/local/clang/include/absl/status/internal/status_internal.hes:ra29tt:
_iIn file included from os/usr/local/clang/include/absl/strings/cord.hrf:_i86ae:
sd/usr/local/clang/include/absl/strings/cord_analysis.hs,:i 50g.:n.49,.: ) i warning: nitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sf
e_rsta   _t50oi | rss_fiaizseesd_i
tg       n| G_        ^ei
tmMpolr,e P&r&e,c i&In file included from s&s2/s2closest_edge_query.cce,: M18te:
mrIn file included from ou../src/s2/s2closest_edge_query.hre:y,34U:
 sIn file included from fa../src/s2/s2closest_edge_query_base.hag:el32(s:
ceIn file included from o)n/usr/local/clang/include/absl/container/btree_set.h;s:
t66       :
C| /usr/local/clang/include/absl/container/internal/btree_container.ho                                                                              ^r:
d583In file included from R:/usr/local/clang/include/absl/container/internal/btree_container.hs2/s2convex_hull_query.cce3::p:*49626  ::
warning: a9In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b:../src/s2/s2convex_hull_query.h
s :l27_note: :
n  macro 'ABSL_INTERNAL_X' defined hereIn file included from o583
../src/s2/s2loop.hn | n:u l  l34 496 :
A | rIn file included from eBpS#L../src/s2/mutable_s2shape_index.h)d;_:Ie
30Nf      :
Ti| nIn file included from eE                                                ^/usr/local/clang/include/absl/container/btree_map.h RA
:NB66/usr/local/clang/include/absl/base/nullability.hAS:
L:LIn file included from _241_/usr/local/clang/include/absl/container/internal/btree.hI:X:(N2270iT::
nE In file included from sRnote: /usr/local/clang/include/absl/container/internal/layout.heNexpanded from macro 'absl_nonnull':rA
198tL  :
__241In file included from oX | (/usr/local/clang/include/absl/strings/str_cat.hFr#:u_d116enfai:
cs,nIn file included from s e/usr/local/clang/include/absl/strings/internal/stringify_sink.h iaC:agb23slnl:
ele_,n/usr/local/clang/include/absl/strings/numbers.ho,  i:nnK152Qsn:ueur37tal:_ll o, warning: r _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N_oMn
aQsnusu  lai152llg | n
_,v       hoiKn| ti_Vi                     ^dam
 lpPulue,t, T &wM&oV,Da ilcguoient,ssIn file included from  t( s2/s2coords.cc.u&i:.,n18.
t:
)      3In file included from  | 2  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2coords.h _
t:  108   i:
 584,In file included from \ |   ../src/s2/s2point.h
c :      h 27| a :
        ^r In file included from  
*../src/s2/s2coder.h   :a 23b :
s In file included from l /usr/local/clang/include/absl/status/status.h_ n: o67 n:
 n In file included from u /usr/local/clang/include/absl/status/internal/status_internal.hlt:lr29 u:
beIn file included from u,/usr/local/clang/include/absl/strings/cord.hf :)t86;r:

u      e/usr/local/clang/include/absl/strings/cord_analysis.h| ,:                                     ^56c
:o56n:/usr/local/clang/include/absl/base/nullability.hs :t241warning: _:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i22t
:e rnote: a   expanded from macro 'absl_nonnull't56
o | rs  (i241hz | ie#n_dtte )fG ieAntBeES sLat_biIsNmlaT_EtnReoNdnAFnLau_ilClrO SM_hMNaAorn)en;Mu
el      ml| o
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/container/internal/btree_container.hr      
:y| U552                     ^/usr/local/clang/include/absl/container/internal/btree_container.hs:
:a3511g::e 47(:cwarning:  opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]note: n
expanded from macro 'ABSL_INTERNAL_X's
t   C552  o | 511r  | d  RIn file included from A es2/s2convex_hull_query.ccpB :*S L26_  :
 IaNIn file included from T b../src/s2/s2convex_hull_query.hsE :lR 27 _N:
AAnIn file included from oLB../src/s2/s2loop.hn_S:LnX34(_u:
liInIn file included from lN s../src/s2/mutable_s2shape_index.hTrEeR:erNt30_pA:
Lo)In file included from ;_
r/usr/local/clang/include/absl/container/btree_map.hA      _:T| a66sT                                                       ^R:
s
IIn file included from iB/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/base/nullability.hgU:T:n70E241,:
_: In file included from iC22A/usr/local/clang/include/absl/container/internal/layout.hn:P:s T198enote: U:
Rrexpanded from macro 'absl_nonnull'In file included from Et
/usr/local/clang/include/absl/strings/str_cat.hD__:B  o116Y241r:
( | _In file included from at#/usr/local/clang/include/absl/strings/internal/stringify_sink.hdsh:esii23gfs:
)ni/usr/local/clang/include/absl/strings/numbers.hn)e_ :)ia156b sm:p l55_l ,:n o    n& warning:  n&type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension], u
l l &  _  N& ,156o n  | t nbr uuol leo, 
l         f | s                     ^aa 
fl es _e s) t;\r

t            o| | 8  ^                                              ^~~~_

ba/usr/local/clang/include/absl/container/internal/btree_container.hs:e509(:a52b:s lnote: :expanded from macro 'ABSL_INTERNAL_X':
str  i509n | g _ v i e w   t e x tA,B SiLn_tI8N_TtE*R NaAbLs_lA_TnToRnInBuUlTlE _vCaAlPuTeU,R
E      D| _                                                      ^B
Y(this/usr/local/clang/include/absl/base/nullability.h):)241,: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u                                                   ^l
l /usr/local/clang/include/absl/container/internal/common.h_:N31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here

      |                      ^   
31 | #define ABSL_INTERNAL_IFIn file included from _s2/s2convex_hull_query.cct:r26u:
eIn file included from (../src/s2/s2convex_hull_query.hi:f27_:
sIn file included from a../src/s2/s2loop.ht:i34s:
fIn file included from i../src/s2/mutable_s2shape_index.he:d30,:
 In file included from ./usr/local/clang/include/absl/container/btree_map.h.:.66):
 In file included from i/usr/local/clang/include/absl/container/internal/btree.hf:_70s:
aIn file included from t/usr/local/clang/include/absl/container/internal/layout.hi:s198f:
iIn file included from e/usr/local/clang/include/absl/strings/str_cat.hd:
116      :
| In file included from         ^/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | In file included from bs2/s2closest_cell_query.cco:o18l:
 In file included from s../src/s2/s2closest_cell_query.ha:f32e:
_In file included from s../src/s2/s2closest_cell_query_base.ht:r33t:
oIn file included from 1/usr/local/clang/include/absl/container/btree_set.h6:_66b:
a/usr/local/clang/include/absl/container/internal/btree_container.hs:e552(:a3b:s lwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
strin  g552_ | v i eAwB StL/usr/local/clang/include/absl/container/internal/btree_container.he_:xI586tN:,T3 E:iR nNwarning: tApassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]1L
6__Xt(*i   n586as | be sr ltA__BnoSorLn__naIusNlsTliE gRvnNa,Al Lui_enX,s(
ei      rn| ts                                                        ^_e
orrt/usr/local/clang/include/absl/base/nullability.h__:ao241sr:s_22ia:gs nsnote: _iexpanded from macro 'absl_nonnull'ig
mnp,  l 241,i |  n#&sd&ee,rf ti&_n&oe,r  _atabrssuslei_,gn nof_nahnliusnletl)_ ;i_
mN      po| ln  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,n 
u&l&l/usr/local/clang/include/absl/container/internal/btree_container.h,
:       &509&| ,:                     ^ 47
f:a lnote: sexpanded from macro 'ABSL_INTERNAL_X'e
,
      |     ^509
 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :In file included from   s2/s2convex_hull_query.cc :note:  26expanded from macro 'ABSL_INTERNAL_X' :

AIn file included from B../src/s2/s2convex_hull_query.hS:  L27509_:
 | IIn file included from  N../src/s2/s2loop.h T: E34 R:
 NIn file included from  A ../src/s2/mutable_s2shape_index.hL :_ 30A :
TAIn file included from TB/usr/local/clang/include/absl/container/btree_map.hRS:ILB66_U:
ITIn file included from NE/usr/local/clang/include/absl/container/internal/btree.hT_:EC70RA:
NPIn file included from AT/usr/local/clang/include/absl/container/internal/layout.hLU:_R198AE:
TDIn file included from T_/usr/local/clang/include/absl/strings/str_cat.hRB:IY116B(:
UtIn file included from Th/usr/local/clang/include/absl/strings/internal/stringify_sink.hEi_:sC23)A:
)P/usr/local/clang/include/absl/strings/numbers.h,T: U160 R: E57 D: _  Bwarning:  Ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] (
 t h i   s160 ) |  )b ,o  o  l     s  a  f  e  _  s\ t
 r       t|  o                                              ^~~~ 3
 2 _ b a s e /usr/local/clang/include/absl/container/internal/btree_container.h( :a 552b :s\3l
::       :| warning: s                                                   ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t

ri/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/common.hn::g51132_::v529i::e  wnote: note:  expanded from macro 'ABSL_INTERNAL_X'macro 'ABSL_INTERNAL_IF_false' defined heret

ext  ,   511 32 | i |  n# td 3e 2f _i tn *e    aA bBAsSBlLS__LnI_oNInTNnETuRElNRlAN LAv_LaI_lFAu_TefT,aR
lI      sB| eU                                                        ^(T
iEf_/usr/local/clang/include/absl/base/nullability.h_C:sA241aP:tT22iU:sR fEnote: iDexpanded from macro 'absl_nonnull'e_
dB,Y   (241.t. | h.#i)ds e)_f)_i)Vn Ae _  Aa Rb Gs Sl __ _n 
o       n | n         ^u 
l l   _ N o n n In file included from u s2/s2closest_edge_query.ccl :l 18
\:
      
In file included from |       ../src/s2/s2closest_edge_query.h                     ^| :
                                                   ^34
:
In file included from ../src/s2/s2closest_edge_query_base.h/usr/local/clang/include/absl/container/internal/common.h::3232:
:In file included from 9/usr/local/clang/include/absl/container/btree_set.h:: 66:
note: /usr/local/clang/include/absl/container/internal/btree_container.hmacro 'ABSL_INTERNAL_IF_false' defined here:
586:3:    32 | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
In file included from es2/s2convex_hull_query.ccf:i26n:
  eIn file included from 586 ../src/s2/s2convex_hull_query.h | A: B27 S:
ALIn file included from B_../src/s2/s2loop.hSI:LN34_T:
IENIn file included from RT../src/s2/mutable_s2shape_index.hNE:AR30LN:
_AIn file included from IL/usr/local/clang/include/absl/container/btree_map.hF_:_X66f(:
aiIn file included from ln/usr/local/clang/include/absl/container/internal/btree.hss:ee70(r:
itIn file included from f_/usr/local/clang/include/absl/container/internal/layout.h_o:sr198a_:
taIn file included from is/usr/local/clang/include/absl/strings/str_cat.hss:fi116ig:
enIn file included from d,/usr/local/clang/include/absl/strings/internal/stringify_sink.h, : i23.n:
.s/usr/local/clang/include/absl/strings/numbers.h.e:)r162 t:__57_o:Vr A_warning: _atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]As
RsGiSg  _n162__ | 
hb      io| no        ^tl
_ ismapfle,_ s&t&r,t o&6&4,_ bfaasles(ea,b
s      l| :  ^:
st/usr/local/clang/include/absl/container/internal/btree_container.hr:i511n:g52_:v inote: eexpanded from macro 'ABSL_INTERNAL_X'w
 te  x511t | ,   i n t 6 4 _ t *  AaBbSsLl__InNoTnEnRuNlAlL _vAaTlTuReI,B
U      T| E                                                        ^_
CA/usr/local/clang/include/absl/base/nullability.hP:T241U:R22E:D _note: Bexpanded from macro 'absl_nonnull'Y
(t  h241i | s#)d)eIn file included from )fs2/s2closest_cell_query.cc i: n18 e :
  In file included from a ../src/s2/s2closest_cell_query.hb :s 32l :
_ In file included from n ../src/s2/s2closest_cell_query_base.ho :n 33n :
u In file included from l /usr/local/clang/include/absl/container/btree_set.hl :  66_ :
N /usr/local/clang/include/absl/container/internal/btree_container.ho :n 553n :u 78l\:l

             | warning: |                                                    ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                     ^


/usr/local/clang/include/absl/container/internal/common.h:32:  9553: |   note:  macro 'ABSL_INTERNAL_IF_false' defined hereA
BSL   _32I | N#TdEeRfNiAnLe_ XAIn file included from (Bs2/s2convex_hull_query.cciS:nL26s_:
eIIn file included from rN../src/s2/s2convex_hull_query.htT:_Eo27Rr:
N_In file included from Aa../src/s2/s2loop.hLs:_s34Ii:
FgIn file included from _n../src/s2/mutable_s2shape_index.hf,:a 30li:
snIn file included from es/usr/local/clang/include/absl/container/btree_map.h(e:ir66ft:
__In file included from so/usr/local/clang/include/absl/container/internal/btree.har:t_70ia:
ssIn file included from fs/usr/local/clang/include/absl/container/internal/layout.hii:eg198dn:
,_In file included from  i/usr/local/clang/include/absl/strings/str_cat.h.m:.p116.l:
),In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h_&:_&23V,:
A /usr/local/clang/include/absl/strings/numbers.h_&:A&165R,:G S39t_:r_ 
u      warning: e| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],        ^
 
tr  u165e | ) ; 
        |                                                                               ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
      496  |  # daebfsiln:e: iAnBtS1L2_8I*N TaEbRsNlA_Ln_oXn(nFuulnlc ,v aClaulel,e ei,n tK Qbuaasle,) ;M
Q      u| a                                      ^l
, /usr/local/clang/include/absl/base/nullability.hK:V241a:l22u:e ,note:  expanded from macro 'absl_nonnull'M
Va  l241u | e#,d e.f.i.n)e   a b s l\_
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30In file included from :
s2/s2closest_edge_query.ccIn file included from :/usr/local/clang/include/absl/container/btree_map.h18::
66In file included from :
../src/s2/s2closest_edge_query.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h34::
70In file included from :
../src/s2/s2closest_edge_query_base.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h32::
198In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h66::
116:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h588::233:
: /usr/local/clang/include/absl/strings/numbers.h:warning: 166passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
57: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]588
 |   A  B166S | Lb_oIoNlT EsRaNfAeL__sXt(ritnosue/usr/local/clang/include/absl/container/internal/btree_container.h8r:t_553_b:oa3sr:e_ (awarning: aspassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]bs
silg:n  :,553s  | ti rn isAneBgrS_tLv__ioIerNw_T aEtsResNxiAtgL,n_ _Xuh(iiinnntts8_e_irtmt*p_ loa,rb _s&al&s_,sn io&gn&nn,,u  lfilan lsvseaerl,tu
_e      o,| r
  ^_      
a| s                                                        ^/usr/local/clang/include/absl/container/internal/btree_container.hs
:i509/usr/local/clang/include/absl/base/nullability.hg::n52241_::i 22m:note: p expanded from macro 'ABSL_INTERNAL_X'l
note: ,expanded from macro 'absl_nonnull' 
  &509  & | 241,  |   #& d& e, f  it nr eu  e a,Ab BstSlrL_u_neIo)Nn;Tn
Eu      Rl| Nl  ^A 
L__N/usr/local/clang/include/absl/container/internal/btree_container.hAo:Tn509Tn:Ru52Il:Bl 
U      note: T| expanded from macro 'ABSL_INTERNAL_X'E                     ^
_
CA  P509T | U R E D _ B Y ( t h iAsB)SIn file included from )Ls2/s2convex_hull_query.cc,_: I26 N:
 TIn file included from  E../src/s2/s2convex_hull_query.h R: N27 A:
 LIn file included from  _../src/s2/s2loop.h A: T 34T :
R In file included from I ../src/s2/mutable_s2shape_index.hB :U 30T :
E In file included from _ /usr/local/clang/include/absl/container/btree_map.hC :A 66P :
T UIn file included from \R/usr/local/clang/include/absl/container/internal/btree.h
E:      D70_| :
B                                                   ^YIn file included from 
(/usr/local/clang/include/absl/container/internal/layout.ht:/usr/local/clang/include/absl/container/internal/common.hh198:i:
32sIn file included from :)/usr/local/clang/include/absl/strings/str_cat.h9)::,116  :
note:  In file included from macro 'ABSL_INTERNAL_IF_false' defined here /usr/local/clang/include/absl/strings/internal/stringify_sink.h
 : 23    :
32  | /usr/local/clang/include/absl/strings/numbers.h #: d168 e: f59 i: n  ewarning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] A
 B S L   _168 I |  Nb To Eo\Rl
N A      sL| a_                                                   ^fI
eF__/usr/local/clang/include/absl/container/internal/common.hsf:ta31rlt:so9eu:(1i 6fnote: __macro 'ABSL_INTERNAL_IF_true' defined herebs
aast   ei31(s | af#bidseeldf:,i: ns.et. r.Ai)Bn Sg_L___vVIiANe_TwAE RRtGNeSAx_Lt__,
I       Fu| _i        ^t
nrtu1e6(_itf*_ saIn file included from abs2/s2closest_edge_query.ccts:il18s_:
fnIn file included from ioe../src/s2/s2closest_edge_query.hnd:n,34u :
l.In file included from l.../src/s2/s2closest_edge_query_base.h .:v)32a :
liIn file included from uf/usr/local/clang/include/absl/container/btree_set.he_:,s66
a:
      t/usr/local/clang/include/absl/container/internal/btree_container.h| i:                                                          ^s588
f:i3/usr/local/clang/include/absl/base/nullability.he::d 241
:warning:       22passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| :
        ^ 
note:   expanded from macro 'absl_nonnull'588
 |     241A | B#SdLe_fIiNnTIn file included from eEs2/s2closest_cell_query.cc R:aN18bA:
sLIn file included from l_../src/s2/s2closest_cell_query.h_X:n(32oi:
nnIn file included from ns../src/s2/s2closest_cell_query_base.hue:lr33lt:
 _In file included from _o/usr/local/clang/include/absl/container/btree_set.hNr:o_66na:
ns/usr/local/clang/include/absl/container/internal/btree_container.hus:li553lg:
n3,       :| i                      ^n
warning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
rt_or  _553a | s s iAgBnS_Lh_iInIn file included from Nts2/s2convex_hull_query.ccT_:Ei26Rm:
NpIn file included from Al../src/s2/s2convex_hull_query.hL,:_ 27X&:
(&In file included from i,../src/s2/s2loop.hn :s&34e&:
r,In file included from t ../src/s2/mutable_s2shape_index.h_f:oa30rl:
_sIn file included from ae/usr/local/clang/include/absl/container/btree_map.hs,:s
66i      :
g| In file included from n  ^/usr/local/clang/include/absl/container/internal/btree.h,
: 70/usr/local/clang/include/absl/container/internal/btree_container.hi:
n:In file included from s511/usr/local/clang/include/absl/container/internal/layout.he:r:52t198:_:
 oIn file included from note: r/usr/local/clang/include/absl/strings/str_cat.hexpanded from macro 'ABSL_INTERNAL_X'_:
a116s:
sIn file included from   i/usr/local/clang/include/absl/strings/internal/stringify_sink.h511g: | n23 _:
 i/usr/local/clang/include/absl/strings/numbers.h m: p170 l: ,59  : &  &warning:  ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A 
B&S&L,   _170tI | rNbuToeEo,Rl N tAsrLau_feAe)T_;Ts
Rt      Ir| Bt  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Uo
TuE3_/usr/local/clang/include/absl/container/internal/btree_container.h2C:_A509bP:aT47sU:eR (Enote: aDexpanded from macro 'ABSL_INTERNAL_X'b_
sBlY:(  :t509sh | ti rs i) n) g) _  v  i  e  w    At Be Sx Lt _, I  Nu Ti En Rt N3 A2 L_ _t A* T  Ta Rb Is\Bl
U_      Tn| Eo                                                   ^_n
CnA/usr/local/clang/include/absl/container/internal/common.hPu:Tl31Ul:R 9Ev:Da _lnote: Bumacro 'ABSL_INTERNAL_IF_true' defined hereYe
(,t
h         i31| s |                                                           ^)#
)d,/usr/local/clang/include/absl/base/nullability.he :f 241i :n 22e :   A note: B expanded from macro 'absl_nonnull'S 
L _   I 241N  | T #E dR eN fA iL n_ eI  F a_ bt sr\lu
_e      n(| oi                                              ^~~~nf
n_uslalt i_s/usr/local/clang/include/absl/container/internal/btree_container.hNf:oi553ne:nd3u,:l  l.warning: 
.passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      .
| )                     ^/usr/local/clang/include/absl/container/internal/btree_container.h 
:i511f:_52s:a tnote: iexpanded from macro 'ABSL_INTERNAL_X's
fie  d511
 |        |          ^ 
   In file included from  s2/s2convex_hull_query.cc : 26 :
AIn file included from B../src/s2/s2convex_hull_query.hS:In file included from L27s2/s2closest_edge_query.cc_:
:IIn file included from 18N../src/s2/s2loop.h:
T:In file included from E34../src/s2/s2closest_edge_query.hR:
:NIn file included from 34A../src/s2/mutable_s2shape_index.h:
L:In file included from _30../src/s2/s2closest_edge_query_base.hA:
:TIn file included from 32T/usr/local/clang/include/absl/container/btree_map.h:
R:In file included from I66/usr/local/clang/include/absl/container/btree_set.hB:
:UIn file included from 66T/usr/local/clang/include/absl/container/internal/btree.h:
E:/usr/local/clang/include/absl/container/internal/btree_container.h_70:C:
588AIn file included from :P/usr/local/clang/include/absl/container/internal/layout.h3T::U198 R:
warning: EIn file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]D/usr/local/clang/include/absl/strings/str_cat.h
_:B116Y:
(In file included from t  /usr/local/clang/include/absl/strings/internal/stringify_sink.hh588:i | 23s :
) /usr/local/clang/include/absl/strings/numbers.h)A:)B172 S: L59 _: I  Nwarning:  Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] E
 R N A   L172 _ |  Xb (o io nl s  es ra tf _e o_ rs _t\ar
st      so| iu                                                   ^g6
n4,_/usr/local/clang/include/absl/container/internal/common.h b:ia31ns:se9e(:ra tbnote: _smacro 'ABSL_INTERNAL_IF_true' defined hereol
r:_:as   st31sr | ii#gndnge__fhviiinneetw _ AitBmeSpxLlt_,,I  N&uT&iE,nR tN&6A&4L,__ tIf*Fa _latsbresu,le
_(      ni| of  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n_
nsualt  li589 s | vf ai le ud e, ,  
.       . | .                                                           ^) 
  i /usr/local/clang/include/absl/base/nullability.hf :_ 241s :a 22t :i  stnote: frexpanded from macro 'absl_nonnull'iu
eed,  
 241      c | | o#        ^nd
setf_iintee raabtsolrIn file included from _(s2/s2closest_cell_query.ccnh:oi18nn:
ntIn file included from u)../src/s2/s2closest_cell_query.hl :lA32 B:
_SIn file included from NL../src/s2/s2closest_cell_query_base.ho_:nI33nN:
uTIn file included from lE/usr/local/clang/include/absl/container/btree_set.hlR:
N66      A:
| L/usr/local/clang/include/absl/container/internal/btree_container.h                     ^_:
C553O:M3M:A )warning: ;'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  553/usr/local/clang/include/absl/container/internal/btree_container.h | : 511 :A47B:S In file included from Lnote: s2/s2convex_hull_query.cc_expanded from macro 'ABSL_INTERNAL_X':I
26N:
TIn file included from E../src/s2/s2convex_hull_query.h  R:511N27 | A:
 LIn file included from  _../src/s2/s2loop.h X: (34 i:
 nIn file included from  s../src/s2/mutable_s2shape_index.h e: r30 t:
A_In file included from Bo/usr/local/clang/include/absl/container/btree_map.hSr:L_66_a:
IsIn file included from Ns/usr/local/clang/include/absl/container/internal/btree.hTi:Eg70Rn:
N,In file included from A /usr/local/clang/include/absl/container/internal/layout.hLi:_n198As:
TeIn file included from Tr/usr/local/clang/include/absl/strings/str_cat.hRt:I_116Bo:
UrIn file included from T_/usr/local/clang/include/absl/strings/internal/stringify_sink.hEa:_s23Cs:
Ai/usr/local/clang/include/absl/strings/numbers.hPg:Tn175U_:Ri41EmD:p_ lBwarning: ,Ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] (
&t&h,i   s175&) | &) ,)    t  r  u  e  ,     t  r  u  e  )  ;  
          |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
     /usr/local/clang/include/absl/container/internal/btree_container.h  :   511  : \47a
:b       s| note: l                                              ^~~~expanded from macro 'ABSL_INTERNAL_X':

:ui  n511t | 1 2 8 *   a b s l _ nAoBnSnLu_lIlN TvEaRlNuAeL,_ AiTnTtR IbBaUsTeE)_;C
A      P| T                                        ^U
RE/usr/local/clang/include/absl/base/nullability.hD:_241B:Y22(:t hnote: iexpanded from macro 'absl_nonnull's
))  )241  |  # d e f i n e   a b s l _ n o n n u l l   _ N\o
n      n| u                                              ^~~~l
l
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer/usr/local/clang/include/absl/container/internal/btree_container.h(:d590o:u3b:l ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
, ch  a590r | *   aAbBsSlL__nIoNnTnEuRlNlA Lb_uXf(fienrs)e;r
t      _| o      ^r
_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:,  note: iexpanded from macro 'absl_nonnull'n
se  r241t | _#odre_faisnsei ganb_shli_nnto_ninmuplll,  _&N&o,n n&u&l,l 
t      r| u                     ^e
,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 509s2/s2convex_hull_query.cc/usr/local/clang/include/absl/container/internal/btree_container.h:::5226555::
: In file included from 3../src/s2/s2convex_hull_query.hnote: ::expanded from macro 'ABSL_INTERNAL_X' 27
:
warning: In file included from ../src/s2/s2loop.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:  
34509:
 | In file included from  ../src/s2/mutable_s2shape_index.h   :555 30 |  :
  In file included from   /usr/local/clang/include/absl/container/btree_map.hA :B 66S :
L In file included from _A/usr/local/clang/include/absl/container/internal/btree.hIBN:ST70LE:
_RIn file included from IN/usr/local/clang/include/absl/container/internal/layout.hNA:TL198E_:
RXIn file included from N(/usr/local/clang/include/absl/strings/str_cat.hAi:Ln116_s:
AeIn file included from Tr/usr/local/clang/include/absl/strings/internal/stringify_sink.hTt:R_23Io:
Br/usr/local/clang/include/absl/strings/numbers.hU_:Ta182Es:_s60Ci:Ag Pnwarning: T,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U 
RiEnDs  _e182Br | Ytc(_htoahrri_*sa )sa)sb,is gl n_ _n ho in nn tu _l il m  pR lo ,u  n cd oT nr si tp  D &o ,u 
b       l\| e
  ^T      
o| B                                                   ^/usr/local/clang/include/absl/container/internal/btree_container.hu
:f509f:/usr/local/clang/include/absl/container/internal/common.he52:r:31( :d9note: o:expanded from macro 'ABSL_INTERNAL_X'u 
bnote: lmacro 'ABSL_INTERNAL_IF_true' defined heree  
 509d |    , 31   | c #h da er f* i  na eb  sAAlBB_SSnLLo__nIInNNuTTlEElRR NNbAAuLLf__fAIeTFrT_)Rt;Ir
Bu      Ue| T(                                                           ^Ei
_fC/usr/local/clang/include/absl/base/nullability.hA_:Ps241Ta:Ut22Ri:Es Dfnote: _iexpanded from macro 'absl_nonnull'Be
Yd(  ,t241 h | .i#.sd.)e))f ,ii nf e_  s aa bt si ls _f ni oe nd n
 u       l|  l        ^  
 _ N o n n u l l\

            | |                      ^                                                   ^
In file included from 
s2/s2closest_edge_query.cc:18/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 32../src/s2/s2closest_edge_query.h::934::
 In file included from ../src/s2/s2closest_edge_query_base.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here32
:
In file included from /usr/local/clang/include/absl/container/btree_set.hIn file included from :   s2/s2convex_hull_query.cc6632::
 | 26/usr/local/clang/include/absl/container/internal/btree_container.h#:
:dIn file included from 590e../src/s2/s2convex_hull_query.h:f:3i27:n:
 eIn file included from warning:  ../src/s2/s2loop.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A:
B34S:
LIn file included from _../src/s2/mutable_s2shape_index.hI  :N59030T | :
E In file included from R /usr/local/clang/include/absl/container/btree_map.hNA:AB66LS:
_LIn file included from I_/usr/local/clang/include/absl/container/internal/btree.hFI:_N70fT:
aEIn file included from lR/usr/local/clang/include/absl/container/internal/layout.hsN:eA198(L:
i_In file included from fX/usr/local/clang/include/absl/strings/str_cat.h_(:si116an:
tsIn file included from ie/usr/local/clang/include/absl/strings/internal/stringify_sink.hsr:ft23i_:
eo/usr/local/clang/include/absl/strings/numbers.hdr:,_183 a:.s7.s:.i )gwarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_,
_ ViAn  _s183Ae | RrcGthS_a_or_r*
_       aa| sb        ^ss
ilg_nn_ohninnutIn file included from l_s2/s2closest_cell_query.ccli: m18Rp:
olIn file included from u,../src/s2/s2closest_cell_query.hn :d&32T&:
r,In file included from i ../src/s2/s2closest_cell_query_base.hp&:F&33l,:
o In file included from at/usr/local/clang/include/absl/container/btree_set.htr:Tu66oe:
B,/usr/local/clang/include/absl/container/internal/btree_container.hu
:f      555f| :e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~3r
:( fwarning:   lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]591o
 | a t     f555 , |     c  hA aB rS *L  _ aI bN sT lE _R nN oAfnLan_luXsl(eli, n bscueofrnftse_tro_)ri;_t
ae      sr| sa      ^it
gonr/usr/local/clang/include/absl/base/nullability.h,(: h241ii:nn22st:e) r note: tAexpanded from macro 'absl_nonnull'_B
oSrL  __241aI | sN#sTdiEegRfnNi_AnhLei_ nCatOb_MsiMlmA_p)nl;o,
n       nc| uo                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ln
ls t_/usr/local/clang/include/absl/container/internal/btree_container.h N:&o509,n:
n47      u:| l   ^l
note: 
expanded from macro 'ABSL_INTERNAL_X'      /usr/local/clang/include/absl/container/internal/btree_container.h
| :                     ^511
:  52509: |   note:  expanded from macro 'ABSL_INTERNAL_X'In file included from  
s2/s2convex_hull_query.cc : 26   :
511 In file included from  |  ../src/s2/s2convex_hull_query.h  :  27 A:
 BIn file included from  S../src/s2/s2loop.h L: _34 I:
 NIn file included from  T../src/s2/mutable_s2shape_index.hAE:BR30SN:
LAIn file included from _L/usr/local/clang/include/absl/container/btree_map.hI_:NA66TT:
ETIn file included from RR/usr/local/clang/include/absl/container/internal/btree.hNI:AB70LU:
_TIn file included from AE/usr/local/clang/include/absl/container/internal/layout.hT_:TC198RA:
IPIn file included from BT/usr/local/clang/include/absl/strings/str_cat.hUU:TR116EE:
_DIn file included from C_/usr/local/clang/include/absl/strings/internal/stringify_sink.hAB:PY23T(:
Ut/usr/local/clang/include/absl/strings/numbers.hRh:Ei183Ds:_)58B):Y, ( warning: t type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h 
i s )   ) 183)  |   c  h  a  r  *     a  b  s  l  _  n  o  n  n  u \l 
l         | R                                               ^~~~o 
u n d\T
r      i| p                                                   ^/usr/local/clang/include/absl/container/internal/btree_container.hF
:l590o/usr/local/clang/include/absl/container/internal/common.h:a:3t32:T: o9warning: B:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u 
fnote: /usr/local/clang/include/absl/container/internal/btree_container.hmacro 'ABSL_INTERNAL_IF_false' defined heref:
e511r:   (5232f: | l #onote: daexpanded from macro 'ABSL_INTERNAL_X'et
f ifn,  e 511 c | Ah Ba Sr L* _  Ia Nb Ts El R_ NnAAoBLnS_nLIu_FlI_lNf TabEluRsfNefA(eLir_f)A_;Ts
Ta      Rt| Ii                                                         ^Bs
UfTi/usr/local/clang/include/absl/base/nullability.hEe:_d241C,:A 22P.:T. U.note: R)expanded from macro 'absl_nonnull'E 
D___  BV241YA | (_#tAdhReiGfsSi)_n)_e)
        a | b         ^s 
l _ n o n n u l l   _ N o n n u l l 
        | \                     ^

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #definIn file included from es2/s2convex_hull_query.cc :A26B:
SIn file included from L../src/s2/s2convex_hull_query.h_:I27N:
TIn file included from E../src/s2/s2loop.hR:N34A:
LIn file included from _../src/s2/mutable_s2shape_index.hI:F30_:
fIn file included from a/usr/local/clang/include/absl/container/btree_map.hl:s66e:
(In file included from i/usr/local/clang/include/absl/container/internal/btree.hf:_70s:
aIn file included from t/usr/local/clang/include/absl/container/internal/layout.hi:s198f:
iIn file included from e/usr/local/clang/include/absl/strings/str_cat.hd:,116 :
.In file included from ./usr/local/clang/include/absl/strings/internal/stringify_sink.h.:)23 :
_/usr/local/clang/include/absl/strings/numbers.h_:V191A:_42A:R Gwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
_
      |           ^191
 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_In file included from ns2/s2closest_edge_query.cco:n18n:
uIn file included from l../src/s2/s2closest_edge_query.hl: 34b:
uIn file included from f../src/s2/s2closest_edge_query_base.hf:e32r:
)In file included from 
/usr/local/clang/include/absl/container/btree_set.h      :| 66      ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/base/nullability.h592::2413::22 : warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

  241   | 592# | d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uXl(li n_sNeorntn_uolrl_
a      s| s                     ^i
gn, insertIn file included from _s2/s2convex_hull_query.cco:r26_:
aIn file included from s../src/s2/s2convex_hull_query.hs:i27g:
nIn file included from _../src/s2/s2loop.hh:i34n:
tIn file included from _../src/s2/mutable_s2shape_index.hi:m30p:
lIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :&66&:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.h&:&70,:
 In file included from t/usr/local/clang/include/absl/container/internal/layout.hr:u198e:
,In file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116  ^:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/container/internal/btree_container.h23::
509:/usr/local/clang/include/absl/strings/numbers.h52::198 :53note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  509 |     198  |  c h a r *   aAbBsSlL__nIoNnTnEuRlNlA LF_aAsTtTIRnItBTUoTBEu_fCfAePrT(UiRnEtD3_2B_Yt( tih,i sc)h)a,r *   a b s l _ n o n n u l l   b u f f e r ) 
       \| 
                                                    ^      
|                                                    ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/container/internal/common.h22::31 :9note: :expanded from macro 'absl_nonnull' 
note:   macro 'ABSL_INTERNAL_IF_true' defined here241
 | #d   e31f | i#ndee faibnsel _AnBoSnLn_uIlNlT E_RNNoAnLn_uIlFl_
t      r| u                     ^e
(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from In file included from s2/s2convex_hull_query.cc../src/s2/s2closest_edge_query_base.h::2632:
:
In file included from In file included from ../src/s2/s2convex_hull_query.h/usr/local/clang/include/absl/container/btree_set.h::2766:
:
In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/container/internal/btree_container.h::34592:
:In file included from 3../src/s2/mutable_s2shape_index.h:: 30:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70  :
592In file included from  | /usr/local/clang/include/absl/container/internal/layout.h : 198A:
BIn file included from S/usr/local/clang/include/absl/strings/str_cat.hL:_116I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hE:R23N:
A/usr/local/clang/include/absl/strings/numbers.hL:_199X:(5i:n swarning: e'diagnose_if' is a clang extension [-Wgcc-compat]r
t_o  r199_ | a s s i gAnB, SiLn_sIeNrTtE_RoNrA_La_sNsEiEgDn__MhIiNn_tS_IiZmEp(lb,u f&f&e,r ,& &k,F atsrtuTeo,B
u      f| f  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
rSi  z593e | ) ; 
        |      ^ 
   /usr/local/clang/include/absl/base/macros.h : 251 : 18 :   note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
tru  e251, |   c o_n_satt_tirtiebruatteo_r_((h(idnita)g nAoBsSeL__iIfN(T_E_RbNuAiLl_tCiOnM_MoAb)j;e
c      t| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
ize/usr/local/clang/include/absl/container/internal/btree_container.h(:O509b:j47,:  0note: )expanded from macro 'ABSL_INTERNAL_X' 
< N,   509\ | 
        |                   ^ 
      ABSL_INTERIn file included from Ns2/s2convex_hull_query.ccA:L26_:
AIn file included from T../src/s2/s2convex_hull_query.hT:R27I:
BIn file included from U../src/s2/s2loop.hT:E34_:
CIn file included from A../src/s2/mutable_s2shape_index.hP:T30U:
RIn file included from E/usr/local/clang/include/absl/container/btree_map.hD:_66B:
YIn file included from (/usr/local/clang/include/absl/container/internal/btree.ht:h70i:
sIn file included from )/usr/local/clang/include/absl/container/internal/layout.h):,198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 200 : 7 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     \200
 |       c| h                                              ^~~~a
r* absl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o592n:n3u:l lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]F
a/usr/local/clang/include/absl/container/internal/btree_container.hs:t511I:n52t:T onote: Bexpanded from macro 'ABSL_INTERNAL_X'u
ffe  r511( | u i n t 3 2 _ t   n ,A BcShLa_rI*N TaEbRsNlA_Ln_oAnTnTuRlIlB UoTuEt__CsAtPrT)U
R      E| D      ^_
BY/usr/local/clang/include/absl/base/nullability.h(:t241h:i22s:) )note: )expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l\l
       _| N                                                   ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l31l:
9      :|                       ^note: 
macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #defIn file included from is2/s2convex_hull_query.ccn:e26 :
AIn file included from B../src/s2/s2convex_hull_query.hS:L27_:
IIn file included from N../src/s2/s2loop.hT:E34R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_30I:
FIn file included from _/usr/local/clang/include/absl/container/btree_map.ht:r66u:
eIn file included from (/usr/local/clang/include/absl/container/internal/btree.hi:f70_:
sIn file included from a/usr/local/clang/include/absl/container/internal/layout.ht:i198s:
fIn file included from i/usr/local/clang/include/absl/strings/str_cat.he:d116,:
 In file included from ./usr/local/clang/include/absl/strings/internal/stringify_sink.h.:.23):
 /usr/local/clang/include/absl/strings/numbers.hi:f200_:s54a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied  
200       | | c        ^h
ar* absl_nonnIn file included from us2/s2closest_edge_query.ccl:l18 :
FIn file included from a../src/s2/s2closest_edge_query.hs:t34I:
nIn file included from t../src/s2/s2closest_edge_query_base.hT:o32B:
uIn file included from f/usr/local/clang/include/absl/container/btree_set.hf:e66r:
(/usr/local/clang/include/absl/container/internal/btree_container.hu:i592n:t33:2 _warning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
n, ch  a592r | *   aAbBsSlL__nIoNnTnEuRlNlA Lo_uXt(_isntsre)r
t      _| o                                                     ^r
_ass/usr/local/clang/include/absl/base/nullability.hi:g241n:,22 :i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen _ahbisnlt__niomnpnlu,l l& &_,N o&n&n,u ltlr
u      e| ,                     ^

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSLIn file included from _s2/s2convex_hull_query.ccI:N26T:
EIn file included from R../src/s2/s2convex_hull_query.hN:A27L:
_In file included from C../src/s2/s2loop.hO:M34M:
AIn file included from )../src/s2/mutable_s2shape_index.h;:
30      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree.h::51170::
47In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h511: | 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 201 : 5 :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat]A
BSL  _201I | N T E R NAABLS_LA_TITNRTIEBRUNTAEL__CNAEPETDU_RMEIDN__BSYI(ZtEh(iosu)t)_)s t r ,   k F a s t T o B u f f e r S i z e ) ; 
\      
|           ^| 
                                              ^~~~
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | cha/usr/local/clang/include/absl/container/internal/btree_container.hr:*618 :a64b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
onnu  l618l |   F aAsBtSILn_tITNoTBEuRfNfAeLr_(Xi(nttr6y4__etm pil,a cceh,a rt*r ya_besmlp_lnaocnen_uilmlp lb,u fcfoenrs)t
       &| ,      ^ 
fa/usr/local/clang/include/absl/base/nullability.hl:s241e:)22;:
       | note:                                                                ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/btree_container.h  :241596 | :#9d:e fnote: imacro 'ABSL_INTERNAL_X' defined heren
e a  b596s | l#_dneofninnuel lA B_SNLo_nInNuTlElR
N      A| L                     ^_
X(Func, CIn file included from as2/s2convex_hull_query.ccl:l26e:
eIn file included from ,../src/s2/s2convex_hull_query.h :K27Q:
uIn file included from a../src/s2/s2loop.hl:,34 :
KIn file included from V../src/s2/mutable_s2shape_index.ha:l30u:
eIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :.66.:
.In file included from )/usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 202 :\53
:       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_eIn file included from ms2/s2convex_hull_query.ccp:l26a:
cIn file included from e../src/s2/s2convex_hull_query.h,: 27t:
rIn file included from y../src/s2/s2loop.h_:e34m:
pIn file included from l../src/s2/mutable_s2shape_index.ha:c30e:
_In file included from i/usr/local/clang/include/absl/container/btree_map.hm:p66l:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.hc:o70n:
sIn file included from t/usr/local/clang/include/absl/container/internal/layout.h :&198,:
 In file included from f/usr/local/clang/include/absl/strings/str_cat.ha:l116s:
eIn file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h;:
23      :
| /usr/local/clang/include/absl/strings/numbers.h  ^:
203:5/usr/local/clang/include/absl/container/internal/btree_container.h:: 611:warning: 52'diagnose_if' is a clang extension [-Wgcc-compat]:
 note: expanded from macro 'ABSL_INTERNAL_X'  
203 |      611  | A B S L _ I N T E R NAABLS_LN_EIENDT_EMRINNA_LS_IAZTET(RbIuBfUfTeEr_,C AkPFTaUsRtETDo_BBuYf(ftehriSsi)z)e,) ; 
        |      ^ 
  /usr/local/clang/include/absl/base/macros.h : 251 : 18 :   note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
      251  |      _ _\a
t      t| r                                                   ^i
bu/usr/local/clang/include/absl/container/internal/common.ht:e32_:_9(:( dnote: imacro 'ABSL_INTERNAL_IF_false' defined herea
gno   s32e | _#idfe(f_i_nbeu iAlBtSiLn__IoNbTjEeRcNtA_Ls_iIzFe_(fOabljs,e (0i)f _<s aNt,i s\f
i      e| d                 ^,
 ...) __VA_ARIn file included from Gs2/s2convex_hull_query.ccS:_26_:

In file included from       ../src/s2/s2convex_hull_query.h| :        ^27
:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntIn file included from Ts2/s2closest_edge_query.cco:B18u:
fIn file included from f../src/s2/s2closest_edge_query.he:r34(:
uIn file included from i../src/s2/s2closest_edge_query_base.hn:t326:
4In file included from _/usr/local/clang/include/absl/container/btree_set.ht: 66i:
,/usr/local/clang/include/absl/container/internal/btree_container.h :c619h:a63r:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  o619n | n u lAlB SbLu_fIfNeTrE)R
N      A| L      ^_
X(/usr/local/clang/include/absl/base/nullability.ht:r241y:_22e:m pnote: lexpanded from macro 'absl_nonnull'a
ce  ,241  | t#rdye_feimnpel aacbes_li_mnpoln,n ucloln s_tN o&n,n utlrlu
e      )| ;                     ^

      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: In file included from note: s2/s2convex_hull_query.ccmacro 'ABSL_INTERNAL_X' defined here:
26:
In file included from ../src/s2/s2convex_hull_query.h:  27596:
 | In file included from #../src/s2/s2loop.hd:e34f:
iIn file included from n../src/s2/mutable_s2shape_index.he: 30A:
BIn file included from S/usr/local/clang/include/absl/container/btree_map.hL:_66I:
NIn file included from T/usr/local/clang/include/absl/container/internal/btree.hE:R70N:
AIn file included from L/usr/local/clang/include/absl/container/internal/layout.h_:X198(:
FIn file included from u/usr/local/clang/include/absl/strings/str_cat.hn:c116,:
 In file included from C/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:l23l:
e/usr/local/clang/include/absl/strings/numbers.he:,204 :K54Q:u awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 KVa  l204u | ec,h a.r.*. )a b s l _ n o n n u l l   F a s t I n t T o B\u
f      f| e        ^r
(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  In file included from 619s2/s2convex_hull_query.cc | : 26 :
AIn file included from B../src/s2/s2convex_hull_query.hS:L27_:
IIn file included from N../src/s2/s2loop.hT:E34R:
NIn file included from A../src/s2/mutable_s2shape_index.hL:_30X:
(In file included from t/usr/local/clang/include/absl/container/btree_map.hr:y66_:
eIn file included from m/usr/local/clang/include/absl/container/internal/btree.hp:l70a:
cIn file included from e/usr/local/clang/include/absl/container/internal/layout.h,: 198t:
rIn file included from y/usr/local/clang/include/absl/strings/str_cat.h_:e116m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:c23e:
_/usr/local/clang/include/absl/strings/numbers.hi:m205p:l5,:  cwarning: o'diagnose_if' is a clang extension [-Wgcc-compat]n
st   &205, |   t r u eA)B;S
L      _| I  ^N
TE/usr/local/clang/include/absl/container/internal/btree_container.hR:N611A:L52_:N Enote: Eexpanded from macro 'ABSL_INTERNAL_X'D
_MI  N611_ | S I Z E ( b u f f e rA,B SkLF_aIsNtTTEoRBNuAfLf_eArTSTiRzIeB)U;T
E      _| C    ^A
PT/usr/local/clang/include/absl/base/macros.hU:R251E:D18_:B Ynote: (expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE't
his  )251) | ,    _ _ a t t r i b u t e _ _ ( ( d i a g n o s e _ i\f
(      _| _                                                   ^b
ui/usr/local/clang/include/absl/container/internal/common.hl:t31i:n9_:o bnote: jmacro 'ABSL_INTERNAL_IF_true' defined heree
ct_   s31i | z#ed(eOfbijn,e  0A)B S<L _NI,N T\E
R      N| A                 ^L
_IF_true(if_In file included from ss2/s2convex_hull_query.cca:t26i:
sIn file included from f../src/s2/s2convex_hull_query.hi:e27d:
,In file included from  ../src/s2/s2loop.h.:.34.:
)In file included from  ../src/s2/mutable_s2shape_index.hi:f30_:
sIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:i66s:
fIn file included from i/usr/local/clang/include/absl/container/internal/btree.he:d70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h        ^:
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2closest_edge_query.cc:18  :
206In file included from  | ../src/s2/s2closest_edge_query.hc:h34a:
rIn file included from *../src/s2/s2closest_edge_query_base.h :32a:
bIn file included from s/usr/local/clang/include/absl/container/btree_set.hl:_66n:
o/usr/local/clang/include/absl/container/internal/btree_container.hn:n619u:l3l:  Fwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
tIntT  o619B | u f fAeBrS(Li_nItN1T2E8R NiA,L _cXh(atrr*y _aebmspll_ancoen,n utlrly _beumfpflearc)e
_      i| m      ^p
l,/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: &expanded from macro 'absl_nonnull',
 t  r241u | e#)d;e
f      i| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
 ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l611_:n47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _N  o611n | n u l l 
        |                       ^ 
  ABSL_INTIn file included from Es2/s2convex_hull_query.ccR:N26A:
LIn file included from _../src/s2/s2convex_hull_query.hA:T27T:
RIn file included from I../src/s2/s2loop.hB:U34T:
EIn file included from _../src/s2/mutable_s2shape_index.hC:A30P:
TIn file included from U/usr/local/clang/include/absl/container/btree_map.hR:E66D:
_In file included from B/usr/local/clang/include/absl/container/internal/btree.hY:(70t:
hIn file included from i/usr/local/clang/include/absl/container/internal/layout.hs:)198):
,In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 206 : 52 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      206  |  c h\a
r      *|                                                ^~~~a
bsl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnu/usr/local/clang/include/absl/container/internal/btree_container.hl:l620 :_59N:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll
        | 620                     ^ | 
  ABSL_INTERNAL_X(try_emplace, try_emplace_impIn file included from ls2/s2convex_hull_query.cc,: 26&:
&In file included from ,../src/s2/s2convex_hull_query.h :f27a:
lIn file included from s../src/s2/s2loop.he:)34;:

In file included from       ../src/s2/mutable_s2shape_index.h| :                                                          ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/btree_container.h::66596:
:In file included from 9/usr/local/clang/include/absl/container/internal/btree.h:: 70:
note: In file included from macro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h  :596116 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.he:f23i:
n/usr/local/clang/include/absl/strings/numbers.he: 207A:B5S:L _warning: I'diagnose_if' is a clang extension [-Wgcc-compat]N
TER  N207A | L _ X ( FAuBnScL,_ ICNaTlElReNeA,L _KNQEuEaDl_,M IKNV_aSlIuZeE,( b.u.f.f)e r ,   k F a s t T o B u f f e r 1 2 8 S i z\e
)      ;| 
        ^      
|     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/container/internal/btree_container.h::70620:
:In file included from 3/usr/local/clang/include/absl/container/internal/layout.h:: 198:
warning: In file included from /usr/local/clang/include/absl/strings/str_cat.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:  23620:
 | /usr/local/clang/include/absl/strings/numbers.h : 208A:B7S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TER  N208A | Lc_hXa(rt*r ya_besmlp_lnaocnen,u ltlr yF_aesmtpIlnatcTeo_Biumfpfle,r (&u&i,n tf1a2l8s ei),; 
c      h| a  ^r
* /usr/local/clang/include/absl/container/internal/btree_container.ha:b611s:l52_:n onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull   611b | u f f e r ) 
        |        ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241A | T#TdReIfBiUnTeE _aCbAsPlT_UnRoEnDn_uBlYl( t_hNiosn)n)u,l l 
        |                       ^ 
          In file included from  s2/s2convex_hull_query.cc : 26 :
 In file included from  ../src/s2/s2convex_hull_query.h : 27 :
 In file included from \../src/s2/s2loop.h
:      34| :
                                                   ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 32/usr/local/clang/include/absl/container/btree_map.h::966::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:   19832:
 | In file included from #/usr/local/clang/include/absl/strings/str_cat.hd:e116f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23A:
B/usr/local/clang/include/absl/strings/numbers.hS:L208_:I53N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_  I208F | _cfhaalrs*e (aibfs_ls_antoinsnfuileld ,F a.s.t.I)n t_T_oVBAu_fAfReGrS(_u_i
n      t| 1        ^2
8 i, char* aIn file included from bs2/s2closest_cell_query.ccs:l18_:
nIn file included from o../src/s2/s2closest_cell_query.hn:n32u:
lIn file included from l../src/s2/s2closest_cell_query_base.h :b33u:
fIn file included from f/usr/local/clang/include/absl/container/btree_set.he:r66):

      /usr/local/clang/include/absl/container/internal/btree_container.h| :                                                    ^558
:3:/usr/local/clang/include/absl/base/nullability.h :241warning: :22passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 note: expanded from macro 'absl_nonnull'
  558   | 241  |  #In file included from Ads2/s2closest_edge_query.ccBe:Sf18Li:
_nIn file included from Ie../src/s2/s2closest_edge_query.hN :Ta34Eb:
RsIn file included from Nl../src/s2/s2closest_edge_query_base.hA_:Ln32_o:
XnIn file included from (n/usr/local/clang/include/absl/container/btree_set.hiu:nl66sl:
e /usr/local/clang/include/absl/container/internal/btree_container.hr_:tN621_o:on58rn:_u alwarning: slpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s

i      g| n                     ^  ,
621  | i n sAeBrStL__oIrN_TaEsRsNiAgLn__Xh(itnrty__iemmppll,a cceo,n sttr yIn file included from &_s2/s2convex_hull_query.cc,e:
m26      p:
| lIn file included from   ^a../src/s2/s2convex_hull_query.h
c:e27_/usr/local/clang/include/absl/container/internal/btree_container.h:
i:In file included from m509p../src/s2/s2loop.h:l:52,34: :
 &In file included from note: &../src/s2/mutable_s2shape_index.hexpanded from macro 'ABSL_INTERNAL_X',:
 30t:
rIn file included from   u/usr/local/clang/include/absl/container/btree_map.h509e:) | 66; :

 In file included from        /usr/local/clang/include/absl/container/internal/btree.h|  :                                                         ^ 70
 :
 In file included from /usr/local/clang/include/absl/container/internal/btree_container.h /usr/local/clang/include/absl/container/internal/layout.h: :596 198:A:
9BIn file included from :S/usr/local/clang/include/absl/strings/str_cat.h L:note: _116macro 'ABSL_INTERNAL_X' defined hereI:

NIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hE  :R59623N | :
A#/usr/local/clang/include/absl/strings/numbers.hLd:_e209Af:Ti5Tn:Re I warning: BA'diagnose_if' is a clang extension [-Wgcc-compat]UB
TSEL__  CI209AN | PT TE UR RN EAADLB__SBXLY(_(FItuNhnTicEs,R) N)CA,aL l_ lN eE eE ,D  _ KM QI uN a_ lS ,I  Z KE V( ab lu uf ef ,e  r ., .  .k\)F
 a       s|  t                                                   ^ T
o B u /usr/local/clang/include/absl/container/internal/common.hf :f 32e :r 91 : 2  8note:  Smacro 'ABSL_INTERNAL_IF_false' defined here i
z e )    ; 32
  |        #| \d    ^
e
      f| i        ^/usr/local/clang/include/absl/base/macros.hn
:e251 :A18B:S Lnote: _expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'I
NTE  R251N | A L __I_Fa_tftarlisbeu(tief___s(a(tdiisafgineods,e _.i.f.()_ __b_uViAl_tAiRnG_So_b_j
e      c| t        ^_
size(Obj, 0In file included from )s2/s2closest_cell_query.cc :<18 :
NIn file included from ,../src/s2/s2closest_cell_query.h :\32
:
      In file included from | ../src/s2/s2closest_cell_query_base.h                 ^:
33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2convex_hull_query.cc558:/usr/local/clang/include/absl/container/internal/btree_container.h | 26: :
621 In file included from :A../src/s2/s2convex_hull_query.h3B::S27 L:
warning: _In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I../src/s2/s2loop.h
N:T34E:
  RIn file included from 621N../src/s2/mutable_s2shape_index.h | A: L30 _:
AXIn file included from B(/usr/local/clang/include/absl/container/btree_map.hSi:Ln66_s:
IeIn file included from Nr/usr/local/clang/include/absl/container/internal/btree.hTt:E_70Ro:
NrIn file included from A_/usr/local/clang/include/absl/container/internal/layout.hLa:_s198Xs:
(iIn file included from tg/usr/local/clang/include/absl/strings/str_cat.hrn:y,116_ :
eiIn file included from mn/usr/local/clang/include/absl/strings/internal/stringify_sink.hpsl:ea23rc:
te/usr/local/clang/include/absl/strings/numbers.h_,:o 215rt:_r7ay:s_ sewarning: imtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]gp
nl_ah  ci215en | _tci_hmiapmrlp*,l  ,a& b&cs,ol n_tsnrtou ne&n),u;
l
      l      |  |   ^F  ^
a
s/usr/local/clang/include/absl/container/internal/btree_container.ht:/usr/local/clang/include/absl/container/internal/btree_container.hI511:n:611t52:T:52o :B note: unote: expanded from macro 'ABSL_INTERNAL_X'fexpanded from macro 'ABSL_INTERNAL_X'
f
er  (511  i | 611n  | t  _  t  y  p  e     i  ,  
A       BA| SB      ^LS
_LI_/usr/local/clang/include/absl/base/nullability.hNI:TN241ET:RE22NR:AN LAnote: _Lexpanded from macro 'absl_nonnull'A_
TAT  TR241TI | RB#IUdBTeUEfT_iECn_AeCP ATaPUbTRsUElRD_E_nDBo_YnB(nYtu(hltilhs i)_s)N))o) n, n  u  l  l  
          |                        ^  
               In file included from   s2/s2convex_hull_query.cc  :  26  :
  In file included from   ../src/s2/s2convex_hull_query.h  :\ 27
 :
       In file included from | \../src/s2/s2loop.h                                                   ^
:
      34| /usr/local/clang/include/absl/container/internal/common.h:
                                                   ^:In file included from 
31../src/s2/mutable_s2shape_index.h::/usr/local/clang/include/absl/container/internal/common.h930:::
31 In file included from :/usr/local/clang/include/absl/container/btree_map.hnote: 9:macro 'ABSL_INTERNAL_IF_true' defined here:66
 :
In file included from note: /usr/local/clang/include/absl/container/internal/btree.h   macro 'ABSL_INTERNAL_IF_true' defined here:31
70 | :
#   In file included from d31/usr/local/clang/include/absl/container/internal/layout.he | :f#198id:
neIn file included from ef/usr/local/clang/include/absl/strings/str_cat.h i:An116Be:
S In file included from LA/usr/local/clang/include/absl/strings/internal/stringify_sink.h_B:IS23NL:
T_/usr/local/clang/include/absl/strings/numbers.hEI:RN216NT:AE49LR:_N IAwarning: FLtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]__
tIr  Fu216_e | t( ri uf e_ (s ia ft _i ss af ti ie sd f, i  e. d. ,.  ) .  .i .f )_  s ia ft _i ss af ti ie sd f
 i       e|  d        ^ 

        |          ^ 
  char* absIn file included from ls2/s2closest_cell_query.cc_:n18oIn file included from :
ns2/s2closest_edge_query.ccIn file included from n:../src/s2/s2closest_cell_query.hu18:l:
32lIn file included from :
 ../src/s2/s2closest_edge_query.hIn file included from b:../src/s2/s2closest_cell_query_base.hu34:f:
33fIn file included from :
e../src/s2/s2closest_edge_query_base.hIn file included from r:/usr/local/clang/include/absl/container/btree_set.h)32:
:
66      In file included from :
| /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/container/internal/btree_container.h                                                ^::
66558:
:/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h3:::241621 ::22warning: 3:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]: 
 note: warning: expanded from macro 'absl_nonnull''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  558   | 241  |    #621Ad | Be Sf LiA_nBIeSN LTa_EbIRsNNlTA_ELnR_oNXnA(nLiu_nlXsl(e tr_rtNy_o_onernm_upallslas
ci      eg| ,n                     ^ ,
t riyn_seemrptl_aocre__aismspilg,n _&h&i,n tt_riumep)l;,
       c| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
st /usr/local/clang/include/absl/container/internal/btree_container.h&:,611
:      47| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
note: expanded from macro 'ABSL_INTERNAL_X'  
559 |      611  |       In file included from   s2/s2convex_hull_query.cc  :  26  :
  In file included from   ../src/s2/s2convex_hull_query.h  : A27 B:
 SIn file included from  L../src/s2/s2loop.hc_:oI34nN:
sTIn file included from tE../src/s2/mutable_s2shape_index.h R:&N30,A:
 LIn file included from f_/usr/local/clang/include/absl/container/btree_map.haA:lT66sT:
eRIn file included from ,I/usr/local/clang/include/absl/container/internal/btree.h B:tU70rT:
uEIn file included from e_/usr/local/clang/include/absl/container/internal/layout.h,C:
A198      P:
| TIn file included from                   ~~~~~~~~~~~~~~~~~~~~~U/usr/local/clang/include/absl/strings/str_cat.h
R:E116D  :
_560In file included from B | /usr/local/clang/include/absl/strings/internal/stringify_sink.hY :( 23t :
h /usr/local/clang/include/absl/strings/numbers.hi :s 217) :) 5, :     warning:   'diagnose_if' is a clang extension [-Wgcc-compat]  
         217   |    c  o  n  s At B_ Si Lt _e Ir Na Tt Eo Rr N( Ah Li\_n
Nt      E)| E                                               ^~~~DA
_BMSILN__ISNITZEER(N
A      L| _    ^C
OM/usr/local/clang/include/absl/base/macros.hM:A251):;18
:       | note:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'

/usr/local/clang/include/absl/container/internal/btree_container.h  :251511 | : 47 :_ _note: aexpanded from macro 'ABSL_INTERNAL_X't
tri  b511u | t e _ _ ( ( d i a g nAoBsSeL__iIfN(T_E_RbNuAiLl_tAiTnT_RoIbBjUeTcEt__CsAiPzTeU(ROEbDj_,B Y0()t h<i sN),) )\ 
        |                   ^ 
                   \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from ,:s2/s2convex_hull_query.cc 561: :26 3:
 :In file included from   ../src/s2/s2convex_hull_query.h warning: : 27passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] :

 In file included from  ../src/s2/s2loop.h :   34561 :
 |  In file included from   ../src/s2/mutable_s2shape_index.h  :A 30B :
S In file included from L /usr/local/clang/include/absl/container/btree_map.h_ :I 66N :
T In file included from E R/usr/local/clang/include/absl/container/internal/btree.h N\:A
70L      :
_| In file included from X                                                   ^/usr/local/clang/include/absl/container/internal/layout.h(
:i198n:
/usr/local/clang/include/absl/container/internal/common.hsIn file included from :e/usr/local/clang/include/absl/strings/str_cat.h32r::t1169_:
:oIn file included from  r/usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: _:macro 'ABSL_INTERNAL_IF_false' defined herea23
s:
s/usr/local/clang/include/absl/strings/numbers.h   i:32g247 | n:#,47d :ei fnwarning: istype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ne
er tA_Bo  Sr247L_ | _a Is Ns Ti Eg Rn N_ Ah Li _n It F_ _i fm ap ll s, e  (c io fn _s st a  t& i, s
 f       i|  e  ^ d
 ,  /usr/local/clang/include/absl/container/internal/btree_container.h .: .509 .: )52i :n_ t_note: _Vexpanded from macro 'ABSL_INTERNAL_X'tA
y_pAe  R*509G  | Sa _b _s 
l       _ | n         ^o 
n n u lAlB SoLu_tI,N TiEnRtN AbLa_sAeT)T R{I
B      U| T                                              ^E
_CA/usr/local/clang/include/absl/base/nullability.hP:T241U:R22E:D _note: Bexpanded from macro 'absl_nonnull'Y
(t  h241i | s#)d)e,f i n e   a b s l _ n o n n u l l   _ N o n n u l\l

            | |                                                    ^                     ^

/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32In file included from :
s2/s2closest_cell_query.ccIn file included from :/usr/local/clang/include/absl/container/btree_set.h18::
66In file included from :
../src/s2/s2closest_cell_query.h:/usr/local/clang/include/absl/container/internal/btree_container.h32::
624In file included from :../src/s2/s2closest_cell_query_base.h3::33 :
In file included from warning: /usr/local/clang/include/absl/container/btree_set.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]66
:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:  3624: |   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A
BSL_I  N561T | E R NAABLS_LX_(ItNrTyE_ReNmApLl_aXc(ei,n sterryt__eomrp_laascsei_ghni,n ti_nismeprlt,_ ocro_nassts i&g,n _thriunet,_
i      m| p  ^l
, /usr/local/clang/include/absl/container/internal/btree_container.hc:o611n:s52t:  &note: ,expanded from macro 'ABSL_INTERNAL_X'

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  611 |    562  |                 A B S L _ I N T E R NcAoLn_sAtT T&R,I BtUrTuEe_,C AfPaTlUsReE,D
_      B| Y                  ~~~~~~~~~~~~~~~~~~~~~(
thi  s563) | ) ,                                  c o n s t _ i t e r\a
t      o| r                                                   ^(
hi/usr/local/clang/include/absl/container/internal/common.hn:t31): 9A:B Snote: Lmacro 'ABSL_INTERNAL_IF_true' defined here_
INT   E31R | N#AdLe_fCiOnMeM AA)B;S
L      _| I                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
TER/usr/local/clang/include/absl/container/internal/btree_container.hN:A509L:_47I:F _note: texpanded from macro 'ABSL_INTERNAL_X'r
ue(i  f509_ | s a t i s f i e d ,  A.B.S.L)_ IiNfT_EsRaNtAiLs_fAiTeTdR
I      B| U        ^T
E_CAPTURED_BY(tIn file included from hs2/s2closest_edge_query.cci:s18):
)In file included from ,../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 624 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
 \
      |                                               ^~~~  
624 |   ABS/usr/local/clang/include/absl/container/internal/btree_container.hL:_561I:N3T:E Rwarning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
L/usr/local/clang/include/absl/container/internal/btree_container.h_:X511(:t52r:y _note: eexpanded from macro 'ABSL_INTERNAL_X'm
pla  c511In file included from e | s2/s2convex_hull_query.cc, :  26t :
r In file included from y ../src/s2/s2convex_hull_query.h_ :e 27 m:
 pIn file included from  l../src/s2/s2loop.hAa:Bc34Se:
L_In file included from _h../src/s2/mutable_s2shape_index.hIi:Nn30Tt:
E_In file included from Ri/usr/local/clang/include/absl/container/btree_map.hNm:Ap66Ll:
_,In file included from A /usr/local/clang/include/absl/container/internal/btree.hTc:To70Rn:
IsIn file included from Bt/usr/local/clang/include/absl/container/internal/layout.h U:&T198,E:
 _In file included from tC/usr/local/clang/include/absl/strings/str_cat.hrA:uP116eT:
,UIn file included from R
/usr/local/clang/include/absl/strings/internal/stringify_sink.hE      :D| 23_  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~B:

Y/usr/local/clang/include/absl/strings/numbers.h(:t  303h625:i | 60s :)  ) warning: ) type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
           303   |   i  n  l  i  n  e     sc io zn es _t t_  i Ft ae sr\ta
Ht      oe| rx                                                   ^(T
hoi/usr/local/clang/include/absl/container/internal/common.hBn:ut32f):f 9eA:rB ZSnote: eLmacro 'ABSL_INTERNAL_IF_false' defined herer_
oIPN   Ta32Ed | R1#N6dA(eLuf_iiCnnOteM6 M4AA_B)tS; L
v_      aI| lN                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,T
 EcRhN/usr/local/clang/include/absl/container/internal/btree_container.haA:rL611*_: I47aF:b_ sfnote: laexpanded from macro 'ABSL_INTERNAL_X'_l
nsoen(  ni611uf | l_ ls  a ot ui ts )f  i {e 
d       ,A|  B                                                           ^.S
.L._)/usr/local/clang/include/absl/base/nullability.h I:_N241_T:VE22AR:_N AAnote: RLexpanded from macro 'absl_nonnull'G_
SA_T  _T241
R |       I#| Bd        ^Ue
TfEi_nCeA PaTbUsRlE_Dn_oBnYn(utlhli s_)N)o,n n u l l 
        |                       ^ 
                 \
      |                                               ^~~~
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:In file included from 32s2/s2convex_hull_query.cc:
:In file included from 26../src/s2/s2closest_cell_query_base.h:
:In file included from 33../src/s2/s2convex_hull_query.h:
:In file included from 27/usr/local/clang/include/absl/container/btree_set.h:
:In file included from 66../src/s2/s2loop.h:
:34/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 564../src/s2/mutable_s2shape_index.h::330::
 In file included from /usr/local/clang/include/absl/container/btree_map.hwarning: :66passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/container/internal/btree_container.h70  ::
564626In file included from  | :/usr/local/clang/include/absl/container/internal/layout.h 3: :198A :
BIn file included from warning: S/usr/local/clang/include/absl/strings/str_cat.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L:_
116I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.h  E:626R23 | N:
 A L/usr/local/clang/include/absl/strings/numbers.hA_:BX330S(:Li41_n:Is Newarning: Trtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Et
R_NoAr  L_330_a | Xs (s ti rg yn _, e  mi pn ls ae cr et ,_  o tr r_ ya _s es mi pg ln a_ ch ei _n ht i_ ni tmi_pniltm,_p tlcy,op ne&s*&t , a &bf,sa
ll      _s| ne  ^o,
n
n      /usr/local/clang/include/absl/container/internal/btree_container.hu| :l  ^509l
: 52o/usr/local/clang/include/absl/container/internal/btree_container.h:u: t611note: ):expanded from macro 'ABSL_INTERNAL_X' 52
{:
         | note: 509                                        ^expanded from macro 'ABSL_INTERNAL_X' | 

  /usr/local/clang/include/absl/base/nullability.h :   241611 : |  22  :     note:   expanded from macro 'absl_nonnull' A
 B   S 241L  | _ #IAdNBeTSfELiR_nNIeAN LTa_EbARsTNlTA_RLnI_oBAnUTnTTuERl_IlCB AU_PTNTEoU_nRCnEAuDPl_TlBU
YR      (E| tD                     ^h_
iBsY)()t,h i s ) ) ,                                      \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h\:
31      :| 9                                                   ^:
 note: /usr/local/clang/include/absl/container/internal/common.hmacro 'ABSL_INTERNAL_IF_true' defined here:
32:9:    31 | note: #macro 'ABSL_INTERNAL_IF_false' defined hered
e   f32i | n#ed eIn file included from Afs2/s2convex_hull_query.ccBi:Sn26Le:
_ In file included from IA../src/s2/s2convex_hull_query.hNB:TS27EL:
R_In file included from NIA../src/s2/s2loop.hNLT:_E34IRF:
N_In file included from At../src/s2/mutable_s2shape_index.hLr:_uI30eF:
(_In file included from if/usr/local/clang/include/absl/container/btree_map.hfa:_l66ss:
aeIn file included from t(/usr/local/clang/include/absl/container/internal/btree.hii:sf70f_:
isIn file included from ea/usr/local/clang/include/absl/container/internal/layout.htd:i,198s :
f.In file included from i./usr/local/clang/include/absl/strings/str_cat.he.:d)116, :
 iIn file included from .f/usr/local/clang/include/absl/strings/internal/stringify_sink.h._:.s23)a:
 t/usr/local/clang/include/absl/strings/numbers.h_i:_s335Vf:Ai52_e:Ad R
warning: G      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S| 
_        ^_

      |         ^
  335 |          In file included from  s2/s2closest_cell_query.cc : 18 :
 In file included from  ../src/s2/s2closest_cell_query.h : 32 :
 In file included from  ../src/s2/s2closest_cell_query_base.h : 33 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 564 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
bsl::  i564n | t 1 2A8B*S La_bIsNlT_EnRoNnAnLu_lXl( ionuste)r t{_
o      r| _                                                   ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g241n:,22 :i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen _ahbisnlt__niomnpnlu,l lc o_nNsotn n&u,l
l      
|         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
                     ^
  565 |                   constIn file included from  s2/s2closest_edge_query.cc&:,18 :
tIn file included from r../src/s2/s2closest_edge_query.hu:e34,:
 In file included from t../src/s2/s2closest_edge_query_base.hr:u32e:
,In file included from 
/usr/local/clang/include/absl/container/btree_set.h      :| 66                  ~~~~~~~~~~~~~~~~~~~~:

/usr/local/clang/include/absl/container/internal/btree_container.h:628  :5663 | :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       628  |      A B SIn file included from  Ls2/s2convex_hull_query.cc _: I26cN:
oTIn file included from nE../src/s2/s2convex_hull_query.hsR:tN27_A:
iLIn file included from t_../src/s2/s2loop.heX:r(34at:
trIn file included from oy../src/s2/mutable_s2shape_index.hr_:(e30hm:
ipIn file included from nl/usr/local/clang/include/absl/container/btree_map.hta):c 66eA:
,BIn file included from  S/usr/local/clang/include/absl/container/internal/btree.htL:r_70yI:
_NIn file included from eT/usr/local/clang/include/absl/container/internal/layout.hmE:pRl198Na:
AcIn file included from Le/usr/local/clang/include/absl/strings/str_cat.h__:Ch116Oi:
MnIn file included from Mt/usr/local/clang/include/absl/strings/internal/stringify_sink.hA_:)i23;m:

p      /usr/local/clang/include/absl/strings/numbers.hl| :,                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~340 
:&53&:/usr/local/clang/include/absl/container/internal/btree_container.h, : 509warning: t:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r47
u:e ,note: 
  expanded from macro 'ABSL_INTERNAL_X'      340
|  |   ^ 
    509/usr/local/clang/include/absl/container/internal/btree_container.h  | :  611  :  52  :     note:   expanded from macro 'ABSL_INTERNAL_X'  
     A   B611 S |  L  _  I  N  T  E  R  N  A  L  _A AB TS TL R_ II BN UT TE ERa_NbCAsALlP_:TA:UTuRTiERnDIt_B1BU2YT8(E*t_ hCaiAbsPs)Tl)U_,Rn Eo Dn _n Bu Yl (l t  ho iu st )) )  ,{  
          |                                                       ^  
    /usr/local/clang/include/absl/base/nullability.h  :  241  :  22\ :
         note:  | expanded from macro 'absl_nonnull'                                               ^~~~
 
    241  |  # d /usr/local/clang/include/absl/container/internal/btree_container.he :f 564i :n\3e
 :      a | bwarning:                                                    ^spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
l
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/common.h_::n51131o::n529n::u  lnote: note: lexpanded from macro 'ABSL_INTERNAL_X'macro 'ABSL_INTERNAL_IF_true' defined here 

_No   n  31n511 | u | #l dl e
 f       i|  n                     ^ e
   A B SALB_SILN_TIENRTNEARLN_AILF__AtTrTuReI(BiUfT_Es_aCtAiPsTfUiReEdD,_ B.Y.(.t)h iisf)_)s)a t i s f i e d 
        |          ^ 
       In file included from  s2/s2convex_hull_query.cc : 26 :
 In file included from In file included from \../src/s2/s2convex_hull_query.hs2/s2closest_edge_query.cc
::      2718| :
:
                                                   ^In file included from In file included from 
../src/s2/s2loop.h../src/s2/s2closest_edge_query.h::/usr/local/clang/include/absl/container/internal/common.h3434::
:
31In file included from In file included from :../src/s2/mutable_s2shape_index.h../src/s2/s2closest_edge_query_base.h9:::3032 :
:
In file included from note: In file included from /usr/local/clang/include/absl/container/btree_map.hmacro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/container/btree_set.h:
:6666:
:
   In file included from /usr/local/clang/include/absl/container/internal/btree_container.h31/usr/local/clang/include/absl/container/internal/btree.h: | :628#70:d:
3eIn file included from :f/usr/local/clang/include/absl/container/internal/layout.h i:warning: n198'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e:

 In file included from A/usr/local/clang/include/absl/strings/str_cat.hB:S116  L:
628_In file included from  | I/usr/local/clang/include/absl/strings/internal/stringify_sink.h N: T23AE:
BR/usr/local/clang/include/absl/strings/numbers.hSN:LA346_L:I_44NI:TF E_warning: Rttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Nr
AuLe_(  Xi346(f | t_ rs ya _t ei ms pf li ae cd e, ,   . t. r. y) _  ei mf p_ ls aa ct ei _s hf ii ne td _
 i       m|  p        ^ l
i,n t&_&t,y pter*u eIn file included from a,s2/s2closest_cell_query.ccb
:s      18l| :
_  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from n
../src/s2/s2closest_cell_query.ho:n32  n:
629uIn file included from  | l../src/s2/s2closest_cell_query_base.h l:   33o :
u In file included from t /usr/local/clang/include/absl/container/btree_set.h) :  66{ :

 /usr/local/clang/include/absl/container/internal/btree_container.h       :|  564                                           ^ :
 3 :/usr/local/clang/include/absl/base/nullability.h  : 241warning:  :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]c22
o:n snote: t  expanded from macro 'absl_nonnull'_564
i | t   e241 r | Aa#BtdSoerLf(_ihIniNenT tEa)Rb NsAAlBL_S_nLXo_(nIinNnuTslEelRr Nt_A_NLoo_rnC_nOauMslMslAi
)g      ;n| 
,                     ^       
| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ser/usr/local/clang/include/absl/container/internal/btree_container.ht:_611o:r47_:a snote: sexpanded from macro 'ABSL_INTERNAL_X'i
gn_h  i611n | t _ i m p l ,   c o nAsBtS L&_,I
N      T| E  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~RIn file included from 
Ns2/s2convex_hull_query.ccA:  L26565_:
 | AIn file included from  T../src/s2/s2convex_hull_query.h T: R27 I:
 BIn file included from  U../src/s2/s2loop.h T: E34 _:
 CIn file included from  A../src/s2/mutable_s2shape_index.h P: T30 U:
 RIn file included from  E/usr/local/clang/include/absl/container/btree_map.h D: _66cB:
oYIn file included from n(/usr/local/clang/include/absl/container/internal/btree.hst:th70 i:
&sIn file included from ,)/usr/local/clang/include/absl/container/internal/layout.h ):t,198r :
u In file included from e /usr/local/clang/include/absl/strings/str_cat.h, :  116t :
r In file included from u /usr/local/clang/include/absl/strings/internal/stringify_sink.he :, 23
 :
       | /usr/local/clang/include/absl/strings/numbers.h                   ~~~~~~~~~~~~~~~~~~~~: 
351 : 55   : 566   | warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
            \ 351
  |         |                                                 ^~~~  
            c o n s t _ i t e r a t o r ( h i n t )   A B S L _ I N T E R NaAbLs_lC:O:MiMnAt)1;2
8      *|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bsl/usr/local/clang/include/absl/container/internal/btree_container.h_:n511o:n47n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X' 
out  )511  | { 
        |                                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| )                     ^ 
                       \
      |                                               ^~~~
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |               /usr/local/clang/include/absl/container/internal/btree_container.h : 638 : 63 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        638  |              c o n satb skle:y:_uairngt<1K2>8 *& ka bAsBlS_Ln_oInNnTuElRlN AoLu_tA)T T{R
I      B| U                                                       ^T
E_/usr/local/clang/include/absl/base/nullability.hC:A241P:T22U:R Enote: Dexpanded from macro 'absl_nonnull'_
BY  (241t | h#idse)f)i
n      e|                                                                ^~~~a
bsl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_B/usr/local/clang/include/absl/container/internal/btree_container.hY:(648t:h7i:s )warning: )'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],
       648  |              t h i s ) )   A B S L _\A
T      T| R                                                   ^I
BU/usr/local/clang/include/absl/container/internal/common.hT:E32_:L9I:F Enote: Tmacro 'ABSL_INTERNAL_IF_false' defined hereI
ME_   B32O | U#NdDe f{i
n      e|        ^~~~A
BSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h  :223572 | : 3 :e xwarning: ppassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
icit   572H | e x (APBoSiLn_tIeNeT*E RaNbAsLl__Xn(uilnlsaebrlte_ ovr,_ aPsasdiSgpne,c  isnpseecr t=_ oarb_sals:s:ikgNno_Phaidn)t
_      i| m                        ^p
l, /usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  &note: ,expanded from macro 'absl_nullable' 
&&  ,257
 |       #| d  ^e
fi/usr/local/clang/include/absl/container/internal/btree_container.hn:e509 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
ull  a509b | l e   _ N u l l a b lAeB
S      L| _                      ^I
NTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f577i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l577l | a b lAeB S_LN_uIlNlTaEbRlNeA
L      _| X                      ^(
insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNALIn file included from _s2/s2convex_hull_query.ccI:F26_:
fIn file included from a../src/s2/s2convex_hull_query.hl:s27e:
(In file included from i../src/s2/s2loop.hf:_34s:
aIn file included from t../src/s2/mutable_s2shape_index.hi:s30f:
iIn file included from e/usr/local/clang/include/absl/container/btree_map.hd, :.66.:
.In file included from )/usr/local/clang/include/absl/container/internal/btree.h :_70_:
VIn file included from A/usr/local/clang/include/absl/container/internal/layout.h_:A198R:
G/usr/local/clang/include/absl/strings/str_cat.hS:_431_:
15      :|          ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |  In file included from  s2/s2closest_cell_query.ccc:o18n:
sIn file included from t../src/s2/s2closest_cell_query.h :c32h:
aIn file included from r../src/s2/s2closest_cell_query_base.h*: 33a:
bIn file included from s/usr/local/clang/include/absl/container/btree_set.hl:_66n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l577a:b3l:e  warning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
ta(  )577  | c o nAsBtS L{_ IrNeTtEuRrNnA Lp_iXe(cien_s.edratt_ao(r)_;a s}s
i      g| n              ^,
 in/usr/local/clang/include/absl/base/nullability.hs:e257r:t23_:o rnote: _expanded from macro 'absl_nullable'a
ss  i257g | n#_dheifnitn_ei mapbls,l _&n&u,l lcaobnlset  _&N,u
l      l| a  ^b
le/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                      ^52
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2crossing_edge_query.cc:18:
In file included from ../src/s2/s2crossing_edge_query.h:33:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(dIn file included from es2/s2closest_cell_query.cct:,18 :
VIn file included from T../src/s2/s2closest_cell_query.hy:p32e:
(In file included from 0../src/s2/s2closest_cell_query_base.h):)33 :
<In file included from </usr/local/clang/include/absl/container/btree_set.h :"66 :
C/usr/local/clang/include/absl/container/internal/btree_container.ha:n583':t3 :i nwarning: vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
rse.   583D | e t eArBmSiLn_aInNtT E=R N0A.L"_;X
(      i| n    ^s
ert../src/s2/base/logging.h_:o37r:_21a:s snote: iexpanded from macro 'S2_CHECK_NE'g
n,    37i | n#sdeerfti_noer _Sa2s_sCiHgEnC_Kh_iNnEt _CiHmEpClK,_ N&E&
,       | c                    ^o
ns/usr/local/clang/include/absl/log/check.ht: 120&:,3
:       | note:   ^expanded from macro 'CHECK_NE'

/usr/local/clang/include/absl/container/internal/btree_container.h:  509120: | 52 :  Anote: Bexpanded from macro 'ABSL_INTERNAL_X'S
L_L  O509G | _ I N T E R N A L _ CAHBESCLK__INNET_EIRMNPALL(_(AvTaTlR1I)B,U T#Ev_aClA1P,T U(RvEaDl_2B)Y,( t#hviasl)2)),
        |    ^ 
  /usr/local/clang/include/absl/log/internal/check_impl.h : 51 : 3 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
       51  |      A B\S
L      _| L                                                   ^O
G_/usr/local/clang/include/absl/container/internal/common.hI:N31T:E9R:N Anote: Lmacro 'ABSL_INTERNAL_IF_true' defined here_
CHE   C31K | _#OdPe(fCihneec kA_BNSEL,_ I!N=T,E RvNaAlL1_,I Fv_atlr1u_et(eixft_,s avtails2f,i evda,l 2._.t.e)x ti)f
_      s| a  ^t
is/usr/local/clang/include/absl/log/internal/check_op.hf:i68e:d22
:       | note:         ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'

   68 |   while In file included from (s2/s2closest_cell_query.ccc:o18n:
sIn file included from t../src/s2/s2closest_cell_query.h :c32h:
aIn file included from r../src/s2/s2closest_cell_query_base.h*: 33a:
bIn file included from s/usr/local/clang/include/absl/container/btree_set.hl:_66n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l583a:b3l:e  warning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
sl_lo  g583_ | i n tAeBrSnLa_lI_NcThEeRcNkA_Lo_pX_(rienssuelrtt _ o r _ a s s i g n ,\ 
i      n| s                     ^e
rt_o/usr/local/clang/include/absl/base/nullability.hr:_257a:s23s:i gnote: nexpanded from macro 'absl_nullable'_
hi  n257t | _#idmepfli,n e& &a,b sclo_nnsutl l&a,b
l      e|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
Nul  l584a | b l e 
        |                        ^ 
           true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2crossing_edge_query.cc::50918::
47In file included from :../src/s2/s2crossing_edge_query.h :33note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2shape.h:27:
In file included from   ../src/s2/s2pointutil.h509: | 27:
../src/s2/util/math/matrix3x3.h:276: 5 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  ../src/s2/base/logging.h : 37A:B21S:L _note: Iexpanded from macro 'S2_CHECK_NE'N
TE   R37N | A#Ld_eAfTiTnReI BSU2T_EC_HCEACPKT_UNREE DC_HBEYC(Kt_hNiEs
)      )| ,                    ^ 
  /usr/local/clang/include/absl/log/check.h : 120 : 3 :   note:  expanded from macro 'CHECK_NE' 
      120  |      A B S L _\L
O      G| _                                              ^~~~I
NTERNAL/usr/local/clang/include/absl/container/internal/btree_container.h_:C583H:E3C:K _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
_/usr/local/clang/include/absl/container/internal/btree_container.hI:M511P:L52(:( vnote: aexpanded from macro 'ABSL_INTERNAL_X'l
1),   511# | v a l 1 ,   ( v a l 2A)B,S L#_vIaNlT2E)R
N      A| L  ^_
AT/usr/local/clang/include/absl/log/internal/check_impl.hT:R51I:B3U:T Enote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'C
APT   U51R | E D _ABBYS(Lt_hLiOsG)_)I)N T E R N A L _ C H E C K _ O P ( C h e c k _ N E\,
       !| =                                                   ^,
 v/usr/local/clang/include/absl/container/internal/common.ha:l311:,9 :v anote: lmacro 'ABSL_INTERNAL_IF_true' defined here1
_te   x31t | ,# dveafli2n,e  vAaBlS2L__tIeNxTtE)R
N      A| L  ^_
IF/usr/local/clang/include/absl/log/internal/check_op.h_:t75r:u61e:( inote: fexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'_
sat   i75s | f i eAdB,S L._.L.O)GIn file included from  _s2/s2convex_hull_query.cciI:fN26_T:
sEIn file included from aR../src/s2/s2convex_hull_query.htN:iA27sL:
f_In file included from iC../src/s2/s2loop.heH:dE34
C:
      KIn file included from | (../src/s2/mutable_s2shape_index.h        ^::
:30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl::66::
iIn file included from m/usr/local/clang/include/absl/container/internal/btree.hp:In file included from l70s2/s2closest_cell_query.cci:
:cIn file included from 18i/usr/local/clang/include/absl/container/internal/layout.h:
t:In file included from _198../src/s2/s2closest_cell_query.hc:
:a32/usr/local/clang/include/absl/strings/str_cat.hs:
:tIn file included from 501<../src/s2/s2closest_cell_query_base.h:c:32o33:n:
 sIn file included from warning: t/usr/local/clang/include/absl/container/btree_set.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
c66h:
a/usr/local/clang/include/absl/container/internal/btree_container.h  r:501*583 |  :va3ob:is dlwarning:  _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]An
popne  nn583ud | lP li >eA(cB eS sL (_ sI tN\dT
:E      :R| sN                                                            ^tA
rLi_/usr/local/clang/include/absl/base/nullability.hnX:g(241*i: n22as:be srnote: ltexpanded from macro 'absl_nonnull'__
noor  n_241na | us#lsdlie gfdnie,ns eti ,na
sb      es| rl                               ^t_
_noorn/usr/local/clang/include/absl/base/nullability.hn_u:al241sl:s 22i_:gN nonote: _nexpanded from macro 'absl_nonnull'hn
iunl  tl241_
 | i      #m| dp                     ^el
f,i n&e& ,a bcsoln_snto n&n,u
l      l|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
Non  n584u | l l 
        |                       ^ 
            true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inlinIn file included from es2/s2closest_cell_query.cc :v18o:
iIn file included from d../src/s2/s2closest_cell_query.h :S32t:
rIn file included from A../src/s2/s2closest_cell_query_base.hp:p33e:
nIn file included from d/usr/local/clang/include/absl/container/btree_set.h(:s66t:
d/usr/local/clang/include/absl/container/internal/btree_container.h:::588s:t3r:i nwarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*
 abs  l588_ | n o nAnBuSlLl_)I N{T}E
R      N| A                                   ^L
_X(/usr/local/clang/include/absl/base/nullability.hi:n241s:e22r:t _note: oexpanded from macro 'absl_nonnull'r
_ass  i241g | n#,d eifnisneer ta_bosrl__ansIn file included from osnins2/s2earth.ccgu:nl16_l:
h iIn file included from _n../src/s2/s2earth.hNt:o_ni24nmup:
lllIn file included from ,
../src/s2/s1angle.h       :&| 28&                     ^:
,
In file included from  ../src/s2/s2point.h&:&24,:
 In file included from f/usr/local/clang/include/absl/hash/hash.ha:l89s:
eIn file included from ,/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
  ^In file included from 
/usr/local/clang/include/absl/base/internal/endian.h:26/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :
:s2/s2convex_hull_query.cc509::/usr/local/clang/include/absl/base/internal/unaligned_access.h2652::
:39In file included from  :note: ../src/s2/s2convex_hull_query.hexpanded from macro 'ABSL_INTERNAL_X'45:
:27 :
  In file included from warning: 509../src/s2/s2loop.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | :
 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from     /usr/local/clang/include/absl/container/btree_map.h39 :A | 66iB:
nSIn file included from Ll/usr/local/clang/include/absl/container/internal/btree.h_i:In70eN:
 TIn file included from uE/usr/local/clang/include/absl/container/internal/layout.hiRn:Nt198A1:
L6/usr/local/clang/include/absl/strings/str_cat.h__:At636T :TU29Rn:Ia Blwarning: Uitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Tg
En_e  Cd636AL | PovTaodUi1Rd6E (DSc_toBrnYAs(tpt phveionsid)d()*s,t  d a: :b ss t lr _i nn go *n n  ua lbl  s pl )_  n {o
 n       n | u                                            ^ l
 l  \d
e      s| /usr/local/clang/include/absl/base/nullability.ht                                                   ^,:
 241c/usr/local/clang/include/absl/container/internal/common.ho::n2232s::t 9 note: :expanded from macro 'absl_nonnull'A l
note: pmacro 'ABSL_INTERNAL_IF_false' defined here  h
241a | N   u#32md | &#e dafe)if;i
nn      ee|   a                            ^Ab
BsS/usr/local/clang/include/absl/base/nullability.hLl:__n241Io:Nn22Tn:Eu Rlnote: lNexpanded from macro 'absl_nonnull'A 
L__  IN241Fo | n_#nfduaellflsi
en      (ei|  f                     ^a_b
ssalt_insofnineudl,l  ._.N.o)n n_u_lVlA
_      A| R                     ^G
S__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.hIn file included from :s2/s2convex_hull_query.cc33::
26In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :../src/s2/s2convex_hull_query.h66::
27/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 588../src/s2/s2loop.h::334::
 In file included from ../src/s2/mutable_s2shape_index.hwarning: :30passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
  In file included from 588/usr/local/clang/include/absl/container/internal/btree.h | : 70 :
AIn file included from B/usr/local/clang/include/absl/container/internal/layout.hS:L198_:
I/usr/local/clang/include/absl/strings/str_cat.hN:T637E:R29N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]X
(ins  e637r | tv_ooirIn file included from d_s2/s2earth.cc a:Ss16ts:
riAIn file included from gpn../src/s2/s2earth.hp,e: n24id:
n(In file included from ss../src/s2/s1angle.hetr:dt28:_:
:osIn file included from rt_../src/s2/s2point.hra:is24ns:
giIn file included from *g /usr/local/clang/include/absl/hash/hash.hna_:bhs89il:
n_In file included from tn_/usr/local/clang/include/absl/hash/internal/hash.hoin:mnp79ull:
,l In file included from  &d/usr/local/clang/include/absl/base/internal/endian.h&e:,s26 t:
&,/usr/local/clang/include/absl/base/internal/unaligned_access.h& ,:c o45fna:slt45s e:A,l
 p      hwarning: | a  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
u
m/usr/local/clang/include/absl/container/internal/btree_container.h&: 511a   :,4552
 | :      i nnote: | lexpanded from macro 'ABSL_INTERNAL_X'                            ^i

ne  /usr/local/clang/include/absl/base/nullability.h 511u:i | n241 t: 3222 : _ tnote:  expanded from macro 'absl_nonnull'  
U    n241 a |  l#AdiBegSfLni_enIdeNL TaoEabRds3N2l(Ac_Lon_onAnnsTuTtlR lI vB_oUiNTodEn*_ naCuAblPslTl
U_      Rn| E                     ^oDn
_nBuYl(lt hpi)s ){)
)       |                                              ^ 
   /usr/local/clang/include/absl/base/nullability.h In file included from : s2/s2convex_hull_query.cc241 : :26 22:
 :In file included from   ../src/s2/s2convex_hull_query.h : note: 27 expanded from macro 'absl_nonnull':
 
In file included from  ../src/s2/s2loop.h   : 24134  | :
 #In file included from d ../src/s2/mutable_s2shape_index.h e:\f30
i:
      nIn file included from | e                                                   ^/usr/local/clang/include/absl/container/btree_map.h 
a:/usr/local/clang/include/absl/container/internal/common.hb66:s:
31lIn file included from :_/usr/local/clang/include/absl/container/internal/btree.hn9o::n70 n:
note: umacro 'ABSL_INTERNAL_IF_true' defined hereIn file included from l
/usr/local/clang/include/absl/container/internal/layout.hl:    19831_:
 | N/usr/local/clang/include/absl/strings/str_cat.h#o:dn639en:uf29lil:n
 e      warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A                     ^
B
SL  _639I | NvToEiRdN ASLt_rIAFp_pternude((sitfd_:s:asttirsifnige*d ,a b.s.l._)n oinfn_uslalt idsefsite,d 
c      o| n        ^s
t AlphaNum& a,In file included from 
s2/s2closest_cell_query.cc      :| 18In file included from                             ^:
s2/s2earth.cc
In file included from :../src/s2/s2closest_cell_query.h/usr/local/clang/include/absl/base/nullability.h16:::
32241In file included from :
:../src/s2/s2earth.hIn file included from 22:../src/s2/s2closest_cell_query_base.h:24: :
33note: In file included from :
expanded from macro 'absl_nonnull'../src/s2/s1angle.hIn file included from 
:/usr/local/clang/include/absl/container/btree_set.h28  ::
24166In file included from  | :
../src/s2/s2point.h#/usr/local/clang/include/absl/container/internal/btree_container.hd::e24588f:
:iIn file included from 3n/usr/local/clang/include/absl/hash/hash.h:e:  89warning: a:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]bIn file included from 
s/usr/local/clang/include/absl/hash/internal/hash.hl:_79n  :
o588nIn file included from  | n /usr/local/clang/include/absl/base/internal/endian.hu l:AlB26 S_:
LN/usr/local/clang/include/absl/base/internal/unaligned_access.h_oI:nNn51TuE:lR45lN
:A      L | _                     ^warning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
(
ins   e51r | ti_nolri_naes suiignntIn file included from ,6s2/s2convex_hull_query.cc4 :_i26tn:
 sIn file included from Ue../src/s2/s2convex_hull_query.hnr:atl27_i:
ogIn file included from rn../src/s2/s2loop.h_e:da34Ls:
osIn file included from aid../src/s2/mutable_s2shape_index.h6g4:n(30_c:
hoIn file included from in/usr/local/clang/include/absl/container/btree_map.hns:tt66_ :
ivIn file included from mo/usr/local/clang/include/absl/container/internal/btree.hpi:ld70*,:
  In file included from a&/usr/local/clang/include/absl/container/internal/layout.hb&:,s198 l:
&_/usr/local/clang/include/absl/strings/str_cat.h&n:,o641n :fn29au:ll slwarning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],p
)
       {  | 
641  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~       | 
v| o                                            ^  i
589d | /usr/local/clang/include/absl/base/nullability.h  S: t 241r A: p 22p e: n  d note: ( expanded from macro 'absl_nonnull's t
 d :   :241 s |  #t drteirnfugei*, n aecb osanlbss_tln_o_inntonenunrlualltl od re_(sNhtio,nn tncu)o nlAslBt
S L      A_| lI                     ^pN
hTaENRuNmA&L _aC,O
M      M| A                            ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
:22: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'511
:47:   241 | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n511e |   a b s l _ n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBUTIn file included from Es2/s2earth.cc_:C16A:
PIn file included from T../src/s2/s2earth.hU:R24E:
DIn file included from _../src/s2/s1angle.hB:YIn file included from 28(s2/s2convex_hull_query.cct:
:hIn file included from 26i../src/s2/s2point.h:
s:In file included from )24../src/s2/s2convex_hull_query.h):
:)In file included from 27 /usr/local/clang/include/absl/hash/hash.h:
 :In file included from  89../src/s2/s2loop.h :
: In file included from 34 /usr/local/clang/include/absl/hash/internal/hash.h:
 :In file included from  79../src/s2/mutable_s2shape_index.h :
: In file included from 30 /usr/local/clang/include/absl/base/internal/endian.h:
 :In file included from  26/usr/local/clang/include/absl/container/btree_map.h :
: 66 /usr/local/clang/include/absl/base/internal/unaligned_access.h:
 :In file included from  57/usr/local/clang/include/absl/container/internal/btree.h :: 3670 ::
  In file included from  warning: /usr/local/clang/include/absl/container/internal/layout.h type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:\
198
:
      | /usr/local/clang/include/absl/strings/str_cat.h                                                 ^~~~:57
646 | :i36n:l iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 voi  d646  | Uinnalliingen evdoSitdo rSet1r6A(pvpoeindd*( satbds:l:_sntorninnugl*l  apb,s lu_innotn1n6u_ltl  vd)e s{t
,       | c                                   ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241A:l22p:h anote: Nexpanded from macro 'absl_nonnull'u
m&   241a | ,#
d      e| f                                   ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_In file included from Xs2/s2earth.cc(:i16n:
sIn file included from e../src/s2/s2earth.hr:t24_:
oIn file included from r../src/s2/s1angle.h_:a28s:
sIn file included from i../src/s2/s2point.hg:n24,:
 In file included from i/usr/local/clang/include/absl/hash/hash.hn:s89e:
rIn file included from t/usr/local/clang/include/absl/hash/internal/hash.h_:o79r:
_In file included from a/usr/local/clang/include/absl/base/internal/endian.hs:s26i:
g/usr/local/clang/include/absl/base/internal/unaligned_access.hn:_61h:i36n:t _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl,    &61& | ,i n&l&i,n et rvuoei,d
       U| n  ^a
l/usr/local/clang/include/absl/container/internal/btree_container.hi:g509n:e52d:S tnote: oexpanded from macro 'ABSL_INTERNAL_X'r
e32  (509v | o i d *   a b s l _ nAoBnSnLu_lIlN TpE,R NuAiLn_tA3T2T_RtI BvU)T E{_
C      A| P                                   ^T
UR/usr/local/clang/include/absl/base/nullability.hE:D241_:B22Y:( tnote: hexpanded from macro 'absl_nonnull'i
s)  )241, |  # d e f i n e   a b s l _ n o n n u l l   _ N o\n
n      u| l                                                   ^l

      | /usr/local/clang/include/absl/container/internal/common.h                     ^:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...)In file included from  s2/s2earth.cci:f16_:
sIn file included from a../src/s2/s2earth.ht:i24s:
fIn file included from i../src/s2/s1angle.he:d28
:
      In file included from | ../src/s2/s2point.h        ^:
24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:In file included from 65s2/s2closest_cell_query.cc::3618::
 In file included from ../src/s2/s2closest_cell_query.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32
:
In file included from ../src/s2/s2closest_cell_query_base.h:33   :
65In file included from  | /usr/local/clang/include/absl/container/btree_set.hi:n66l:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:e590 :v3o:i dwarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]U
nalig  n590e | d S tAoBrSeL6_4I(NvToEiRdN*A La_bXs(li_nnsoenrntu_lolr _pa,s suiignnt,6 4i_nts evr)t _{o
r      _| a                                   ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241_:h22i:n tnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #&d&e,f i&n&e,  atbrsule_,n
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll   _591N | o n n u l l 
        |                       ^ 
        false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)   In file included from  s2/s2earth.cc : 16 :
 In file included from  ../src/s2/s2earth.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
\In file included from 
/usr/local/clang/include/absl/hash/hash.h      :| 89        ^:

In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplIn file included from as2/s2earth.ccc:e16_:
iIn file included from m../src/s2/s2earth.hp:l24,:
 In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from  ../src/s2/s2point.h&:,24 :
fIn file included from a/usr/local/clang/include/absl/hash/hash.hl:s89e:
)In file included from ;/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
  ^
/usr/local/clang/include/absl/base/internal/endian.h:164/usr/local/clang/include/absl/container/internal/btree_container.h::27611:: 52:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_INTERNAL_X'
  164   | 611i | n l i n e   v o i d  ASBtSoLr_eI1N6T(EvRoNiAdL*_ AaTbTsRlI_BnUoTnEn_uClAlP TpU,R EuDi_nBtY1(6t_hti sv))) ,{ 
        |                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                                                   ^s
l_/usr/local/clang/include/absl/container/internal/common.hn:o32n:n9u:l lnote:  macro 'ABSL_INTERNAL_IF_false' defined here_
Non   n32u | l#ld
e      f| i                     ^n
e ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t LoIn file included from as2/s2closest_cell_query.ccd:3182:
(In file included from c../src/s2/s2closest_cell_query.ho:n32s:
tIn file included from  ../src/s2/s2closest_cell_query_base.hv:o33i:
dIn file included from */usr/local/clang/include/absl/container/btree_set.h :a66b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_619n:o63n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
 p)   619{ | 
        | A                                   ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_X  (241t | r#yd_eefmipnlea caeb,s lt_rnyo_nenmupllla c_eN_oinmnpull,l 
c      o| n                     ^s
t &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(FuIn file included from ns2/s2earth.ccc:,16 :
CIn file included from a../src/s2/s2earth.hl:l24e:
eIn file included from ,../src/s2/s1angle.h :K28Q:
uIn file included from a../src/s2/s2point.hl:,24 :
KIn file included from V/usr/local/clang/include/absl/hash/hash.ha:l89u:
eIn file included from ,/usr/local/clang/include/absl/hash/internal/hash.h :.79.:
./usr/local/clang/include/absl/base/internal/endian.h): 172 : 27 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      172  |  i n l i n e   v o\i
d       | S        ^t
ore32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNALIn file included from _s2/s2earth.ccX:(16t:
rIn file included from y../src/s2/s2earth.h_:e24m:
pIn file included from l../src/s2/s1angle.ha:c28e:
,In file included from  ../src/s2/s2point.ht:r24y:
_In file included from e/usr/local/clang/include/absl/hash/hash.hm:p89l:
aIn file included from c/usr/local/clang/include/absl/hash/internal/hash.he:_79i:
m/usr/local/clang/include/absl/base/internal/endian.hp:l176,: 36c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 &,   176t | riunel)i;n
e       | u  ^i
nt/usr/local/clang/include/absl/container/internal/btree_container.h6:4611_:t52 :L onote: aexpanded from macro 'ABSL_INTERNAL_X'd
64(  c611o | n s t   v o i d *   aAbBsSlL__nIoNnTnEuRlNlA Lp_)A T{T
R      I| B                                   ^U
TE/usr/local/clang/include/absl/base/nullability.h_:C241A:P22T:U Rnote: Eexpanded from macro 'absl_nonnull'D
_B  Y241( | t#hdiesf)i)n,e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^\

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(In file included from is2/s2earth.ccf:_16s:
aIn file included from t../src/s2/s2earth.hi:s24f:
iIn file included from e../src/s2/s1angle.hd:,28 :
.In file included from .../src/s2/s2point.h.:)24 :
iIn file included from f/usr/local/clang/include/absl/hash/hash.h_:s89a:
tIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hs:f79i:
e/usr/local/clang/include/absl/base/internal/endian.hd:
180      :| 27        ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inlineIn file included from  s2/s2closest_cell_query.ccv:o18i:
dIn file included from  ../src/s2/s2closest_cell_query.hS:t32o:
rIn file included from e../src/s2/s2closest_cell_query_base.h6:433(:
vIn file included from o/usr/local/clang/include/absl/container/btree_set.hi:d66*:
 /usr/local/clang/include/absl/container/internal/btree_container.ha:b619s:l3_:n owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ull p  ,619  | u i nAtB6S4L__tI NvT)E R{N
A      L| _                          ^X
(t/usr/local/clang/include/absl/base/nullability.hr:y241_:e22m:p lnote: aexpanded from macro 'absl_nonnull'c
e,   241t | r#yd_eefmipnlea caeb_silm_pnlo,n ncuolnls t_ N&o,n nturlule
)      ;| 
                     ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | In file included from #s2/s2coords.ccd:e18f:
iIn file included from n../src/s2/s2coords.he: 108A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:X67(:
FIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hn:c29,:
 In file included from C/usr/local/clang/include/absl/strings/cord.ha:l94l:
eIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31K:
Qu/usr/local/clang/include/absl/synchronization/mutex.ha:l,489 :K14V:a lwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
, ..  .489) |              v o i d   ( * a b s    l _ n\u
l      l| a        ^b
le invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define a/usr/local/clang/include/absl/container/internal/btree_container.hb:s620l:_3n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
ble   620_ | N u lAlBaSbLl_eI
N      T| E                      ^R
NAL_X(tryIn file included from _s2/s2coords.cce:m18p:
lIn file included from a../src/s2/s2coords.hc:e108,:
 In file included from t../src/s2/s2point.hr:y27_:
eIn file included from m../src/s2/s2coder.hp:l23a:
cIn file included from e/usr/local/clang/include/absl/status/status.h_:i67m:
pIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h,: 29:
&In file included from &/usr/local/clang/include/absl/strings/cord.h,: 94f:
aIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hs:e31):
;/usr/local/clang/include/absl/synchronization/mutex.h
:      489| :  ^45
: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]611
:52:   note: 489expanded from macro 'ABSL_INTERNAL_X' | 
      611  |   v o i d   ( * a b sAlB_SnLu_lIlNaTbElRNAL_ATTeRIBUTE_ CiAnPTURED_vBaYr(itahnits))()v,          o i d *   a b s l        \
      | _                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined herel
ab   i32l | i#tdye_fine ABSL_INuTnEkRnNoAwL_IF_fanl)s,e
(      i| f                                            ^_
sat/usr/local/clang/include/absl/base/nullability.hi:s289f:i34e:d ,note:  expanded from macro 'absl_nullability_unknown'.
..)   289_ | _#VdAe_fAiRGnSe_ _a
b      s| l        ^_
nullability_unknown _Null_unspecified
      |                                  ^
In file included from In file included from s2/s2closest_cell_query.ccs2/s2coords.cc::1818:
:
In file included from In file included from ../src/s2/s2closest_cell_query.h../src/s2/s2coords.h::32108:
:
In file included from In file included from ../src/s2/s2closest_cell_query_base.h../src/s2/s2point.h::3327:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h../src/s2/s2coder.h::6623:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/status.h::62167::
58In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
621In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31A:
B/usr/local/clang/include/absl/synchronization/mutex.hS:L490_:I13N:T Ewarning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
AL_  X490( | tr y _ e m p lvaocied,*  tarbys_le_mnpullalcaeb_iilmiptly,_ u&n&k,n otwrnu ea)r;g
)      ;| 
                                                         ^      
|             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596/usr/local/clang/include/absl/base/nullability.h::9289:: 34:note:  macro 'ABSL_INTERNAL_X' defined herenote: 
expanded from macro 'absl_nullability_unknown'
    596289 |  | ##ddeeffiinnee  AaBbSsLl__InNuTlElRaNbAiLl_iXt(yF_uunnck,n oCwanl l_eNeu,l lK_Quunaslp,e cKiVfaileude
,       | .                                 ^.
.)                  In file included from  s2/s2coords.cc : 18 :
\In file included from 
../src/s2/s2coords.h      :| 108        ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullIn file included from as2/s2earth.ccb:l16e:
 In file included from n../src/s2/s2earth.ha:m24e:
)In file included from ;../src/s2/s1angle.h
:      28| :
                                  ^In file included from 
/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h:::62124257::
:3In file included from 23:/usr/local/clang/include/absl/hash/hash.h: : warning: 89passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]note: :

expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h    :62125779 |  |  :
# d/usr/local/clang/include/absl/base/internal/endian.hAeB:fSi250Ln:_e36I :NaT bEwarning: sRtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lN
_AnLu  _lX250l( | aitnbrlliyen_e e_m Npuulilanlcta1eb6,_l tet
 r      Ly| o_                      ^ae
mdp1l6a(cceo_nismtp lv,o i&d&*,  atbrsule_)n;o
n      n| u  ^l
l p/usr/local/clang/include/absl/container/internal/btree_container.h): 611{:
52      :|                                     ^
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.hs2/s2coords.cc
::24118  ::
61122In file included from  | :../src/s2/s2coords.h  : 108 note: :
 expanded from macro 'absl_nonnull'In file included from  
../src/s2/s2point.h :   27241 :
  | In file included from  #../src/s2/s2coder.hAd:eB23fS:
iLIn file included from n_e/usr/local/clang/include/absl/status/status.h I:aN67bTs:
lEIn file included from _R/usr/local/clang/include/absl/status/internal/status_internal.hnN:Ao29Ln:
_nIn file included from uA/usr/local/clang/include/absl/strings/cord.hlT:Tl94R :
_INIn file included from Bo/usr/local/clang/include/absl/strings/internal/cordz_info.hnU:nT31uE:
l/usr/local/clang/include/absl/synchronization/mutex.h_l:C
549A      :P| 40T                     ^:U
 Rwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]D
_BY  (549t | h i ss)t)a,t i c   v o i d   I n c r e m e n t         \
      |                                                    ^In file included from 
s2/s2earth.cc:16/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s2earth.h::924::
 In file included from note: ../src/s2/s1angle.hmacro 'ABSL_INTERNAL_IF_true' defined here:
28:
In file included from ../src/s2/s2point.h   :3124 | :
#In file included from d/usr/local/clang/include/absl/hash/hash.he:f89i:
nIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h :A79B:
S/usr/local/clang/include/absl/base/internal/endian.hL:_254I:N27T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_I  F254_ | tirnulei(nief _vsoaitdi sSftioerde,1 6.(.v.o)i di*f _asbastli_snfoinendu
l      l|          ^p
, uint16_t v) {
      | In file included from                           ^s2/s2closest_cell_query.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_cell_query.h241::3222:
:In file included from  ../src/s2/s2closest_cell_query_base.hnote: :expanded from macro 'absl_nonnull'33
:
In file included from   /usr/local/clang/include/absl/container/btree_set.h241: | 66#:
d/usr/local/clang/include/absl/container/internal/btree_container.he:f621i:n3e:  awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
l_non  n621u | l l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: In file included from note: s2/s2earth.ccexpanded from macro 'ABSL_INTERNAL_X':
16:
In file included from ../src/s2/s2earth.h:  24611:
 | In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from A/usr/local/clang/include/absl/hash/hash.hB:S89L:
_In file included from I/usr/local/clang/include/absl/hash/internal/hash.hN:T79E:
R/usr/local/clang/include/absl/base/internal/endian.hN:A258L:_36A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUT  E258_ | CiAnPlTiUnReE Du_iBnYt(3t2h_its )L)o,a d 3 2 ( c o n s t   v o i d *   a b s l _ n o n n u\l
l       | p                                              ^~~~)
 {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 622expanded from macro 'absl_nonnull':
3:   241warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
def  i622n | e   aAbBsSlL__nIoNnTnEuRlNlA L__NXo(ntnruyl_le
m      p| l                     ^a
ce, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: In file included from expanded from macro 'ABSL_INTERNAL_X's2/s2earth.cc
:16:
In file included from   ../src/s2/s2earth.h611: | 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24A:
BIn file included from S/usr/local/clang/include/absl/hash/hash.hL:_89I:
NIn file included from T/usr/local/clang/include/absl/hash/internal/hash.hE:R79N:
A/usr/local/clang/include/absl/base/internal/endian.hL:_266A:T36T:R Iwarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
TE_  C266A | PiTnUlRiEnDe_ BuYi(ntth6i4s_)t) ,L o a d 6 4 ( c o n s t   v o i d *   a b s l _ n o n\n
u      l| l                                                   ^ 
p)/usr/local/clang/include/absl/container/internal/common.h :{32
:      9| :                                   ^ 
note: macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/base/nullability.h
:241:22   :32  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_lfla l_sNeo(ninfu_lsla
t      i| s                     ^f
ied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2closest_cell_query.cc:18:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_SXy(ntcrhyS_eemm(pMlacuet,e xt*r ya_besmlp_lnaocnen_uhliln tm_ui,m
p      l| ,                                       ^ 
cons/usr/local/clang/include/absl/base/nullability.ht: 241&:,22 :t rnote: uexpanded from macro 'absl_nonnull'e
,
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
 | #d  e625f | i n e   a b s l _ n o n n u l l   _ Ncoonnnsutl_li
t      e| r                     ^a
tor(hint) ABSL_INTERNIn file included from As2/s2coords.ccL:_18C:
OIn file included from MMA../src/s2/s2coords.h):;108
:
      In file included from | ../src/s2/s2point.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
27:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree_container.h::23611:
:In file included from 47/usr/local/clang/include/absl/status/status.h:: 67note: expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 611/usr/local/clang/include/absl/strings/cord.h | : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 550A:B64S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN  A550L | _ A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,      b a s e _ i n t e r n a l : : P e r T h r e a d\S
y      n| c                                              ^~~~h
* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d626e:f3i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl_  n626o | n n uAlBlS L__NIoNnTnEuRlNlA
L      _| X                     ^(
try_emplacIn file included from es2/s2coords.cc,: 18t:
rIn file included from y../src/s2/s2coords.h_:e108m:
pIn file included from l../src/s2/s2point.ha:c27e:
_In file included from h../src/s2/s2coder.hi:n23t:
_In file included from i/usr/local/clang/include/absl/status/status.hm:p67l:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h&:&29,:
 In file included from f/usr/local/clang/include/absl/strings/cord.ha:l94s:
eIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
  ^/usr/local/clang/include/absl/synchronization/mutex.h
:552:/usr/local/clang/include/absl/container/internal/btree_container.h64::611 :52warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_  B552Y | ( t h i s ) ) ,                                                  b a\s
e      _| i                                                   ^n
ter/usr/local/clang/include/absl/container/internal/common.hn:a32l::9::P enote: rmacro 'ABSL_INTERNAL_IF_false' defined hereT
hre   a32d | S#ydnecfhi*n ea bAsBlS_Ln_oInNnTuElRlN AwL,_
I      F| _                                                               ^f
al/usr/local/clang/include/absl/base/nullability.hs:e241(:i22f:_ snote: aexpanded from macro 'absl_nonnull't
is  f241i | e#dd,e f.i.n.e)  a_b_sVlA__nAoRnGnSu_l_l
       _| N        ^o
nnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2closest_cell_query.cc:18  :
241In file included from  | ../src/s2/s2closest_cell_query.h#:d32e:
fIn file included from i../src/s2/s2closest_cell_query_base.hn:e33 :
aIn file included from b/usr/local/clang/include/absl/container/btree_set.hs:l66_:
n/usr/local/clang/include/absl/container/internal/btree_container.ho:n628n:u3l:l  warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
onnu  l628l | 
        | A                     ^B
SL_INTERNAL_X(try_emplIn file included from as2/s2coords.ccc:e18,:
 In file included from t../src/s2/s2coords.hr:y108_:
eIn file included from m../src/s2/s2point.hp:l27a:
cIn file included from e../src/s2/s2coder.h_:h23i:
nIn file included from t/usr/local/clang/include/absl/status/status.h_:i67m:
pIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h,: 29&:
&In file included from ,/usr/local/clang/include/absl/strings/cord.h :t94r:
uIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h,:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h  ^:
558:35/usr/local/clang/include/absl/container/internal/btree_container.h:: 611:warning: 52type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_INTERNAL_X'  
558 |     b611o | o l   L o c k S l o wAWBiStLh_DIeNaTdElRiNnAeL(_MAuTHToRwI BaUbTsEl__CnAoPnTnUuRlElD _hBoYw(,t
h      i| s                                  ^)
),/usr/local/clang/include/absl/base/nullability.h : 241 :In file included from  22s2/s2closest_point_query.cc ::  18 note: :
 expanded from macro 'absl_nonnull'In file included from  
../src/s2/s2closest_point_query.h :   30 :
 In file included from  ../src/s2/s2min_distance_targets.h :241 33 |  :
# dIn file included from  e../src/s2/s2cell_index.h f: i26 n:
 e In file included from   /usr/local/clang/include/absl/container/flat_hash_set.ha :b\s45l
_:
n      o| /usr/local/clang/include/absl/container/internal/raw_hash_set.hn                                                   ^:n
2663u:l53l/usr/local/clang/include/absl/container/internal/common.h: : _31warning: N:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o9
n:n unote: lmacro 'ABSL_INTERNAL_IF_true' defined here l
2663
 |           |  31                      ^ |  
# d eTf&i&n ev aAlBuIn file included from Ses2/s2coords.ccL :_A18IB:
NSIn file included from TL../src/s2/s2coords.hE_:RI108NN:
ATIn file included from LE../src/s2/s2point.h_R:IN27FA:
_LIn file included from t_../src/s2/s2coder.hrA:uT23eT:
(RIn file included from iI/usr/local/clang/include/absl/status/status.hfB:_U67sTa:
EtIn file included from _i/usr/local/clang/include/absl/status/internal/status_internal.hCs:Af29Pi:
TeIn file included from Ud/usr/local/clang/include/absl/strings/cord.hR,:E 94D.:
_.In file included from B./usr/local/clang/include/absl/strings/internal/cordz_info.hY):( 31ti:
hf/usr/local/clang/include/absl/synchronization/mutex.hi_:ss559)a:)t46
i:      s | fwarning:                                                     ^~~~itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
e
d
      |           ^559
 |              In file included from  s2/s2closest_cell_query.cc : 18 :
 In file included from  ../src/s2/s2closest_cell_query.h : 32 :
 In file included from  ../src/s2/s2closest_cell_query_base.h : 33 :
 In file included from c/usr/local/clang/include/absl/container/btree_set.ho:n66s:
t/usr/local/clang/include/absl/container/internal/btree_container.h :C628o:n3d:i twarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
n* ab  s628l | _ n uAlBlSaLb_lIeN TcEoRnNdA,L
_      X| (                                             ^t
ry/usr/local/clang/include/absl/base/nullability.h_:e257m:p23l:a cnote: eexpanded from macro 'absl_nullable',
 t  r257y | _#edmepfliancee _ahbisnlt__niumlplla,b l&e& ,_ Nturlulea,b
l      e| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                       ^
  629 |                   const_itIn file included from es2/s2coords.ccr:a18t:
oIn file included from r../src/s2/s2coords.h(:h108i:
nIn file included from t../src/s2/s2point.h): 27A:
BIn file included from S../src/s2/s2coder.hL:_23I:
NIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
AIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:C29O:
MIn file included from M/usr/local/clang/include/absl/strings/cord.hA:)94;:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~31
:
/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/container/internal/btree_container.h562::61123::47 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    562611 |  |     v o i d   L o c kAS/usr/local/clang/include/absl/container/internal/raw_hash_set.hBl:So2692wL(:_M58Iu:NH Towarning: Ew'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]R 
NaAbLs_ lA2692_T | Tn Ro In B nU uT lEcl_o CnhAsoPtwT ,UT R&cE Dov_naBslYtu( etC hoAinBsdS)Li)_t,Ii No Tn E*  R aN bA sL l_ _A nT uT lR lI aB bU lT eE  _c Co An Pd T, U 
R       E | D\                      ^_

B      Y/usr/local/clang/include/absl/base/nullability.h| (:                                              ^~~~t241
h:i22s:) )note: 
expanded from macro 'absl_nonnull'      
|                                                          ^~~~  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 638/usr/local/clang/include/absl/status/internal/status_internal.h::6329::
 In file included from /usr/local/clang/include/absl/strings/cord.hwarning: :94'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31638:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 565 : 36 :  cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
st /usr/local/clang/include/absl/container/internal/raw_hash_set.hk  :e5652734y | :_ 65a :rv gowarning: <i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]Kd
>  U&nkl  o2734Ac | Bk S S Ll o_ wI N( TS Ey Rn Nc Ah LW _a Ai Tt PT aR rITaB&mU&sT *Ev _aaClbAusPelT _UAnRBuESlDLl__aBIbYNl(TetE hRwiNasAi)Lt)_p
A)      T | TA                                                              ^~~~BR
SILB_UATTET_RCIABPUTTUER_ECDO_LBDY;(
t      h| i                                   ^s
))/usr/local/clang/include/absl/base/nullability.h
:      257| :                                                                ^~~~23
: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove/usr/local/clang/include/absl/container/internal/btree_container.h(:b648a:s7e:_ iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
erna  l648: | : P e r T h rtehaidsS)y)nc hA*B SaLb_sAlT_TnRoInBnUuTlEl_ LsI)F;E
T      I| M                                                ^E
_B/usr/local/clang/include/absl/base/nullability.hO:U241N:D22 :{ 
note:       expanded from macro 'absl_nonnull'| 
      ^~~~
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from :
/usr/local/clang/include/absl/hash/hash.hIn file included from :../src/s2/s2coords.h89::
108In file included from :
/usr/local/clang/include/absl/hash/internal/hash.hIn file included from :../src/s2/s2point.h89::
27In file included from :
/usr/local/clang/include/absl/numeric/int128.hIn file included from :../src/s2/s2coder.h41::
23:
/usr/local/clang/include/absl/types/compare.hIn file included from :/usr/local/clang/include/absl/status/status.h78::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29'enable_if' is a clang extension [-Wgcc-compat]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:   3178:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 850 : 16 :  _warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ttri  b850u | t e _ _ ( ( ecnoanbslte _Ti*f (anb s=l=_ n0o,n n"uOlnll yo bljietcetr,a
l       | `               ^0
` i/usr/local/clang/include/absl/base/nullability.hs: 241a:l22l:o wnote: eexpanded from macro 'absl_nonnull'd
."  )241) | )# d{e}f
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/commandlineflags.h::52221::
3In file included from :/usr/local/clang/include/absl/flags/flag.h :42warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/flags/internal/flag.h
:43:
/usr/local/clang/include/absl/synchronization/mutex.h  :522489 | : 14 :A Bwarning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_INTE  R489N | A L _ X ( i nvsoeirdt _(o*ra_bassls_ingunl,l aibnlsee ritn_voarr_iaasnsti)g(nv_oiimdp*l ,a bcsoln_sntu l&l,a bciolnistty _&u,n
k      n| o  ^w
n)/usr/local/clang/include/absl/container/internal/btree_container.h,:
509      :| 52             ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/base/nullability.h:257:23  :509  | note:  expanded from macro 'absl_nullable' 
     257  |  # d e fAiBnSeL _aIbNsTlE_RnNuAlLl_aAbTlTeR I_BNUuTlEl_aCbAlPeT
U      R| E                      ^D
_BY(thiIn file included from ss2/s2debug.cc):)18,:
 In file included from  ../src/s2/s2debug.h : 55 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 43 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 489 :\45
:       | warning:                                                    ^type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

  489 | /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :  vnote: omacro 'ABSL_INTERNAL_IF_false' defined herei
d (   *32a | b#sdle_fniunlel aAbBlSeL _iInNvTaErRiNaAnLt_)I(Fv_ofiadl*s ea(bisfl__snautlilsafbiieldi,t y._.u.n)k n_o_wVnA)_,A
R      G| S                                            ^_
_
/usr/local/clang/include/absl/base/nullability.h      :| 289        ^:
34: note: expanded from macro 'absl_nullability_unknown'
  289 | #In file included from ds2/s2convex_hull_query.cce:f26i:
nIn file included from e../src/s2/s2convex_hull_query.h :a27b:
sIn file included from l../src/s2/s2loop.h_:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.ha:b30i:
lIn file included from i/usr/local/clang/include/absl/container/btree_map.ht:y67_:
u/usr/local/clang/include/absl/container/internal/btree_container.hn:k522n:o3w:n  warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
ull  _522u | n s pAeBcSiLf_iIeNdT
E      R| N                                 ^A
L_X(insert_or_asIn file included from ss2/s2debug.cci:g18n:
,In file included from  ../src/s2/s2debug.hi:n55s:
eIn file included from r../src/s2/base/commandlineflags.ht:_21o:
rIn file included from _/usr/local/clang/include/absl/flags/flag.ha:s42s:
iIn file included from g/usr/local/clang/include/absl/flags/internal/flag.hn:_43i:
m/usr/local/clang/include/absl/synchronization/mutex.hp:l490,: 13c:o nwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
 &,   490c | o n s t   & ,v
o      i| d  ^*
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s511l:_52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X'a
bil  i511t | y _ u n k n o w n   aArBgS)L;_
I      N| T            ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L289_:A34T:T Rnote: Iexpanded from macro 'absl_nullability_unknown'B
UTE  _289C | A#PdTeUfRiEnDe_ BaYb(stlh_insu)l)l)a b i l i t y _ u n k n o w n   _ N u l l _ u n s\p
e      c| i                                                   ^f
ie/usr/local/clang/include/absl/container/internal/common.hd:
32      :| 9                                 ^:
 note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSIn file included from Ls2/s2debug.cc_:I18N:
TIn file included from E../src/s2/s2debug.hR:N55A:
LIn file included from _../src/s2/base/commandlineflags.hI:F21_:
fIn file included from a/usr/local/clang/include/absl/flags/flag.hl:s42e:
(In file included from i/usr/local/clang/include/absl/flags/internal/flag.hf:_43s:
a/usr/local/clang/include/absl/synchronization/mutex.ht:i499s:f35i:e dwarning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
...  )499  | _ _ VvAo_iAdR GESn_a_b
l      e| D        ^e
bugLog(const char* absl_nullable name);
      | In file included from                                   ^s2/s2convex_hull_query.cc
:26:
In file included from ../src/s2/s2convex_hull_query.h/usr/local/clang/include/absl/base/nullability.h::27257:
:In file included from 23../src/s2/s2loop.h:: 34:
note: In file included from expanded from macro 'absl_nullable'../src/s2/mutable_s2shape_index.h
:30:
  In file included from 257/usr/local/clang/include/absl/container/btree_map.h | :#67d:
e/usr/local/clang/include/absl/container/internal/btree_container.hf:i525n:e30 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_nu  l525l | a b l e   _ N u l l a b l e 
        |                        ^ 
false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func,In file included from  s2/s2debug.ccC:a18l:
lIn file included from e../src/s2/s2debug.he:,55 :
KIn file included from Q../src/s2/base/commandlineflags.hu:a21l:
,In file included from  /usr/local/clang/include/absl/flags/flag.hM:Q42u:
aIn file included from l/usr/local/clang/include/absl/flags/internal/flag.h,: 43K:
V/usr/local/clang/include/absl/synchronization/mutex.ha:l549u:e40,:  Mwarning: Vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
lue  ,549  | . . .s)t a t i c  \v
o      i| d        ^ 
IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:550:/usr/local/clang/include/absl/container/internal/btree_container.h64::524 :3warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |     524  |      A B S L _ I N T E R N A L _ X ( i n s e r t _ o r _ absassieg_ni,n tienrsnearlt:_:oPre_raTshsriegand_Siymnpclh,*  caobnsslt_ n&o,n ncuolnls tw )&;,

            | |                                                                ^  ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/btree_container.h241::50922::52 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241 |   #509d | e f i n e   a b s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uAlTlT
R      I| B                     ^U
TE_CAPTURED_BY(this))In file included from ,s2/s2debug.cc : 18 :
 In file included from  ../src/s2/s2debug.h : 55 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 43 :
 /usr/local/clang/include/absl/synchronization/mutex.h\:
551      :| 40                                                   ^:
 warning: /usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
32:9  :551  | note:  macro 'ABSL_INTERNAL_IF_false' defined here 
sta   t32i | c# dbeofoiln eD eAcBrSeLm_eInNtTSEyRnNcAhLS_eImF(_Mfuatlesxe*( iafb_ssla_tniosnfniueldl,  m.u.,.
)       | _                                       ^_
VA/usr/local/clang/include/absl/base/nullability.h_:A241R:G22S:_ _note: 
expanded from macro 'absl_nonnull'      
|         ^  
241 | #define aIn file included from bs2/s2convex_hull_query.ccs:l26_:
nIn file included from o../src/s2/s2convex_hull_query.hn:n27u:
lIn file included from l../src/s2/s2loop.h :_34N:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 67                     ^:

/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s2debug.cc  :52418 | :
 In file included from  ../src/s2/s2debug.hA:B55S:
LIn file included from _../src/s2/base/commandlineflags.hI:N21T:
EIn file included from R/usr/local/clang/include/absl/flags/flag.hN:A42L:
_In file included from X/usr/local/clang/include/absl/flags/internal/flag.h(:i43n:
s/usr/local/clang/include/absl/synchronization/mutex.he:r552t:_64o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sign  ,552  | i n s e r t _ o r _ a s s i g n _ i m p l ,   c o n s t   & ,   cboansset_ i&n,t
e      r| n  ^a
l:/usr/local/clang/include/absl/container/internal/btree_container.h::P511e:r52T:h rnote: eexpanded from macro 'ABSL_INTERNAL_X'a
dSy  n511c | h *   a b s l _ n o nAnBuSlLl_ IwN,T
E      R| N                                                               ^A
L_/usr/local/clang/include/absl/base/nullability.hA:T241T:R22I:B Unote: Texpanded from macro 'absl_nonnull'E
_C  A241P | T#UdReEfDi_nBeY (atbhsils_)n)o)n n u l l   _ N o n n u l l 
        |                       ^ 
      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #dIn file included from es2/s2debug.ccf:i18n:
eIn file included from  ../src/s2/s2debug.hA:B55S:
LIn file included from _../src/s2/base/commandlineflags.hI:N21T:
EIn file included from R/usr/local/clang/include/absl/flags/flag.hN:A42L:
_In file included from I/usr/local/clang/include/absl/flags/internal/flag.hF:_43t:
r/usr/local/clang/include/absl/synchronization/mutex.hu:e556(:i38f:_ swarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
isf  i556e | d ,  v.o.i.d)  Liofc_ksSaltoiwsLfoioepd(
S      y| n        ^c
hWaitParams* abslIn file included from _s2/s2convex_hull_query.ccn:o26n:
nIn file included from u../src/s2/s2convex_hull_query.hl:l27 :
wIn file included from a../src/s2/s2loop.hi:t34p:
,In file included from  ../src/s2/mutable_s2shape_index.hi:n30t:
 In file included from f/usr/local/clang/include/absl/container/btree_map.hl:a67g:
s/usr/local/clang/include/absl/container/internal/btree_container.h):;524
:      3| :                                     ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/base/nullability.h
:241:22: note:   expanded from macro 'absl_nonnull'524
 |     241A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(oinnnsuelrlt __oNro_nansuslilg
n      ,|                       ^i
nsert_or_assign_impl, In file included from cs2/s2debug.cco:n18s:
tIn file included from  ../src/s2/s2debug.h&:,55 :
cIn file included from o../src/s2/base/commandlineflags.hn:s21t:
 In file included from &/usr/local/clang/include/absl/flags/flag.h,:
42      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/flags/internal/flag.h
:43:
  525/usr/local/clang/include/absl/synchronization/mutex.h | : 558 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      558  |      b o ofla lLsoec,k StlrouweW)i;t
h      D| e                  ~~~~~~~~~~~~a
dli/usr/local/clang/include/absl/container/internal/btree_container.hn:e511(:M47u:H onote: wexpanded from macro 'ABSL_INTERNAL_X' 
absl  _511n | o n n u l l   h o w ,A
B      S| L                                  ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Aexpanded from macro 'absl_nonnull'T
TR  I241B | U#TdEe_fCiAnPeT UaRbEsDl__BnYo(ntnhuilsl) )_)N o n n u l l 
        |                       ^ 
         In file included from  s2/s2debug.cc : 18 :
\In file included from 
../src/s2/s2debug.h      :| 55                                              ^~~~:

In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defin/usr/local/clang/include/absl/container/internal/btree_container.he: 527a:b30s:l _warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
lla  b527l | e   _ N u l l a b l e 
        |                        ^ 
   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9In file included from :In file included from s2/s2debug.cc s2/s2coords.cc::note: 1818macro 'ABSL_INTERNAL_X' defined here:
:

In file included from In file included from ../src/s2/s2debug.h../src/s2/s2coords.h::  55108496:
:
 | In file included from In file included from #../src/s2/base/commandlineflags.h../src/s2/s2point.hd::e2127f:
:
iIn file included from In file included from n/usr/local/clang/include/absl/flags/flag.h../src/s2/s2coder.he:: 4223A:
:
BIn file included from In file included from S/usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/status/status.hL::_4367I:
:
NIn file included from /usr/local/clang/include/absl/synchronization/mutex.hT/usr/local/clang/include/absl/status/internal/status_internal.h:E:562R29N::
A23L:_ X/usr/local/clang/include/absl/strings/cord.hwarning: (:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F109
u:n53c:  ,  562warning: C | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a 
l lveoe  i,109d  |  KvLQoouicadkl S,Cl ooMpwQy(uCMaolr,du THKooVSwat lrauibens,gl (_McnVooannlsnutue l,Cl o .rh.do.&w) , s  rc co ,n  s\st
t       dC| :o        ^:n
sdtirtiinogn**  aabbssll__nnounlnlualbll ed scto)n;d
,      
|                                                           ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinne ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h/usr/local/clang/include/absl/container/internal/btree_container.h::55526:
:In file included from 3../src/s2/base/commandlineflags.h:: 21:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/flags/flag.h
:42In file included from :
s2/s2coords.cc  In file included from :526/usr/local/clang/include/absl/flags/internal/flag.h18 | ::
 43 In file included from A:
../src/s2/s2coords.hB/usr/local/clang/include/absl/synchronization/mutex.h:S:108L562:
_:In file included from I58N../src/s2/s2point.h:T: E27warning: R:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]NIn file included from A
../src/s2/s2coder.hL:_23X  :
(562In file included from i | /usr/local/clang/include/absl/status/status.hn :s 67ev:
roIn file included from ti/usr/local/clang/include/absl/status/internal/status_internal.h_d:o 29Lr:
o_/usr/local/clang/include/absl/strings/cord.hca:ksS110sl:io55gw:n( ,Mwarning:  utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iH
onws e  ar110bts | _lvo_rn_ooniandsus liAlgp pnh_oeinwmd,pC lco,or ndcsoTtno sSCtot rn&i,dni gtcio(oncnso*tn  sa&tb,s l
C_      on| ru  ^dl
&l a/usr/local/clang/include/absl/container/internal/btree_container.hsb:rl509ce, : cs52ot:nd :dnote: :,expanded from macro 'ABSL_INTERNAL_X's

t      r| i                                                           ^n509
g | * /usr/local/clang/include/absl/base/nullability.h  a: b257 s: l23 _: n  onote:  nexpanded from macro 'absl_nullable' n
AuB  Sl257Ll | _# IddeNfsitnT)eE; Ra
NbA      sLl_| _A                                                      ^nT
TuRl/usr/local/clang/include/absl/base/nullability.hlI:aBbU241lT:eE 22__:CNA uPnote: lTexpanded from macro 'absl_nonnull'lU
aRbEl  De241_
 | B      #Y| d                      ^(e
tfhiinse) )a,b s l _ n o n n u l l   _ N o n n u l lIn file included from  
s2/s2debug.cc       : | 18                      ^:
 
In file included from \../src/s2/s2debug.h
:      55| :
                                                   ^In file included from 
../src/s2/base/commandlineflags.h:21/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31/usr/local/clang/include/absl/flags/flag.h::942::
 In file included from /usr/local/clang/include/absl/flags/internal/flag.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here43
:
/usr/local/clang/include/absl/synchronization/mutex.h:   56531: | 36#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne A  B565S | L _ IvNoTiEdR NUAnLl_oIcFk_Stlrouwe((Siyfn_cshaWtaiistfPiaerda,m s.*. .a)b silf__nsualtliasbfliee dw
a      i| t        ^p
) ABSL_ATTRIBUTEIn file included from _s2/s2convex_hull_query.ccC:O26L:
DIn file included from ;../src/s2/s2convex_hull_query.h
:      27| :
                                   ^In file included from 
../src/s2/s2loop.h:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/mutable_s2shape_index.h::2330::
 In file included from /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'absl_nullable'67
:
/usr/local/clang/include/absl/container/internal/btree_container.h  :257526 | :#3d:e fwarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
e abs  l526_ | n u lAlBaSbLl_eI N_TNEuRlNlAaLb_lXe(
i      n| s                      ^e
rt_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 | In file included from  s2/s2debug.cc : 18 :
 In file included from  ../src/s2/s2debug.h : 55 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42t:
rIn file included from u/usr/local/clang/include/absl/flags/internal/flag.he:,43 :
f/usr/local/clang/include/absl/synchronization/mutex.ha:l576s:e49):; 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                  ~~~~~~~~~~~~
  576/usr/local/clang/include/absl/container/internal/btree_container.h | : 509 :v47o:i dnote:  expanded from macro 'ABSL_INTERNAL_X'T
ryRe  m509o | v e ( b a s e _ i n tAeBrSnLa_lI:N:TPEeRrNTAhLr_eAaTdTSRyInBcUhT*E _aCbAsPlT_UnRoEnDn_uBlYl( tsh)i;s
)      )| ,                                                ^  
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                                              ^~~~l
_nonnul/usr/local/clang/include/absl/container/internal/btree_container.hl: 526_:N3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l/usr/local/clang/include/absl/container/internal/btree_container.h
:      511| :                     ^52
: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           AIn file included from Bs2/s2debug.ccS:L18_:
IIn file included from N../src/s2/s2debug.hT:E55R:
NIn file included from A../src/s2/base/commandlineflags.hL:_21A:
TIn file included from T/usr/local/clang/include/absl/flags/flag.hR:I42B:
UIn file included from T/usr/local/clang/include/absl/flags/internal/flag.hE:_43C:
A/usr/local/clang/include/absl/synchronization/mutex.hP:T578U:R45E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(th  i578s | ) ) )v o i d   B l o c k ( b a s e _ i n t e r n a l :\:
P      e| r                                                   ^T
hr/usr/local/clang/include/absl/container/internal/common.he:a32In file included from d:s2/s2coords.ccS9y::n18 c:
note: hIn file included from macro 'ABSL_INTERNAL_IF_false' defined here*../src/s2/s2coords.h 
a:b108   s:
32lIn file included from _ | ../src/s2/s2point.hn#:od27nen:
fuIn file included from il../src/s2/s2coder.hnl: es23 ):
A;In file included from 
B/usr/local/clang/include/absl/status/status.h      S:L| 67_                                            ^:
I
In file included from N/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.hT::E29R241:
N:/usr/local/clang/include/absl/strings/cord.hA22:L:425_ :I62note: F:expanded from macro 'absl_nonnull'_ f
warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  l
241s | e#(d  eif425fi | n_e s  afatbrisiself_nidneo nvdo,ni ud. l.Cl. )o_p Ny_oC_nonVruAld_lTAo
RSG      tSr| _i                     ^_n
g
(      c| o        ^n
st Cord& sIn file included from rs2/s2debug.ccc:,18 :
sIn file included from t../src/s2/s2debug.hd::55::
sIn file included from t../src/s2/base/commandlineflags.hr:i21n:
gIn file included from */usr/local/clang/include/absl/flags/flag.h :a42b:
sIn file included from l/usr/local/clang/include/absl/flags/internal/flag.h_:n43o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u580l:l34 :d swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
;
      |                                                                ^580
 |   /usr/local/clang/include/absl/base/nullability.hb:a241s:e22_:i nnote: texpanded from macro 'absl_nonnull'e
rn  a241l | :#:dPeefriTnher eaabdsSly_nncohn*n ualbls l__NnounlIn file included from nls2/s2convex_hull_query.ccua:lbl26
l:
e      In file included from  | ../src/s2/s2convex_hull_query.h                     ^W:
a27k:
eIn file included from u../src/s2/s2loop.hp:(34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                 ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::25767::
23:/usr/local/clang/include/absl/container/internal/btree_container.h :529note: :expanded from macro 'absl_nullable'29
:   warning: 257In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | s2/s2coords.cc
#:d18e  :
f529In file included from i | ../src/s2/s2coords.hn e:  108 a:
 bIn file included from  s../src/s2/s2point.h l: _27 n:
 uIn file included from  l../src/s2/s2coder.h l: a23b l:
e In file included from   _/usr/local/clang/include/absl/status/status.h N: u67 l:
tlIn file included from ra/usr/local/clang/include/absl/status/internal/status_internal.hub:el29,e:
 
/usr/local/clang/include/absl/strings/cord.ht      :r| 437u                      ^:e
47):; 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                            ^
In file included from s2/s2debug.cc/usr/local/clang/include/absl/container/internal/btree_container.h  ::43718496 | :
: In file included from 9 ../src/s2/s2debug.h: :  55note:  :
macro 'ABSL_INTERNAL_X' defined here In file included from 
 ../src/s2/base/commandlineflags.h : 21   :
496 In file included from  |  /usr/local/clang/include/absl/flags/flag.h# :d 42e :
f In file included from i /usr/local/clang/include/absl/flags/internal/flag.hn :e 43  :
A /usr/local/clang/include/absl/synchronization/mutex.hB :S 581L :_ 38I :N  T warning: E type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R 
N A L   _581sX | t( dF :u :n sc t, r biCanasgle*l_ eiaenb,ts elKr_Qnnuaoalnl:n,:u PlMelQr uTdahslrt,e) a;Kd
VS      ay| ln                                              ^cu
he*,/usr/local/clang/include/absl/base/nullability.h  :aM241bV:sa22ll:_u nenote: o,expanded from macro 'absl_nonnull'n 
n.u  .l241.l | )#  dw e) f; i
 n      \e| 
                                      ^      a
| b        ^/usr/local/clang/include/absl/base/nullability.hs
:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from In file included from s2/s2coords.cc/usr/local/clang/include/absl/flags/internal/flag.h::1843:
:
In file included from ../src/s2/s2coords.h/usr/local/clang/include/absl/synchronization/mutex.h::108585/usr/local/clang/include/absl/container/internal/btree_container.h:
::In file included from 20528../src/s2/s2point.h::: 327:warning: :
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
warning: ../src/s2/s2coder.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
23  :
585In file included from  | /usr/local/clang/include/absl/status/status.h   :528 67 | v:
 oIn file included from  i/usr/local/clang/include/absl/status/internal/status_internal.hAd:B 29ST:
Lr/usr/local/clang/include/absl/strings/cord.h_a:In480Ns:T(39MEu:RH Nowarning: Awtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L 
a_bXs(  li480_nn | so enr nt u_l olur s_hioanwsg)s;i  gp no/,i/ n ituenrss ee=dr  ctfo_onorsr t_C aosnsvdiaVlgaurne-__>iMtmuyptlpe,e x*c  oatnbrssatln _s&nf,oe nrcn
ou      nl| s                   ^tl
; 
/usr/local/clang/include/absl/base/nullability.h&      :,| 241
                                      ^:      
22| :  ^ /usr/local/clang/include/absl/base/nullability.h
:note: 241expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.h:
:22509  ::241 52 | :note: # expanded from macro 'absl_nonnull'd
enote: fexpanded from macro 'ABSL_INTERNAL_X'  i
n241e |    #a509bd | es lf _i nn oe  n an bu sl ll  _A_nBNoSonLnn_nuIulNllT lE
_R      NNo| AnL                     ^n_u
AlTlT
R      I| B                     ^U
TE_CAPTURED_BY(In file included from ts2/s2debug.cch:i18s:
)In file included from )../src/s2/s2debug.h,: 55 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 43 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 586 : 43 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                                    ^
  586/usr/local/clang/include/absl/container/internal/common.h | : 31 :v9o:i dnote:  macro 'ABSL_INTERNAL_IF_true' defined hereF
er(   b31a | s#ed_eifnitneer nAaBlS:L:_PIeNrTTEhIn file included from Rrs2/s2coords.ccNe:AaL18d_SI:
yFIn file included from _n../src/s2/s2coords.hct:hr*108 uae:
(biIn file included from sfl../src/s2/s2point.h__:sn27aot:
niIn file included from ns../src/s2/s2coder.hfu:il23el:
d
,In file included from        /usr/local/clang/include/absl/status/status.h| .:.                                          ^67.
:
)In file included from  /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.hi::f24129_::
s22/usr/local/clang/include/absl/strings/cord.ha::t 501i:note: sexpanded from macro 'absl_nonnull'f52
i:e d  
warning: 241      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | | 
        ^#
de  f501i | n e   a besxlp_lnIn file included from ios2/s2convex_hull_query.ccncn:iu26tl:
 lIn file included from C ../src/s2/s2convex_hull_query.hh_:uN27onn:
knIn file included from uIl../src/s2/s2loop.htl:e
34r      :
a| In file included from t                     ^../src/s2/mutable_s2shape_index.ho
r:(30c:
oIn file included from r/usr/local/clang/include/absl/container/btree_map.hd:_67i:
n/usr/local/clang/include/absl/container/internal/btree_container.ht:e528r:n3a:l :In file included from warning: :s2/s2debug.ccC'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o:
r18d:
RIn file included from e../src/s2/s2debug.hp:  *55528 :
 | aIn file included from  b../src/s2/base/commandlineflags.h s:Al21B_:
nSoLnIn file included from _n/usr/local/clang/include/absl/flags/flag.hIu:Nl42Tl:
E In file included from Rt/usr/local/clang/include/absl/flags/internal/flag.hNr:eA43eL):
_;/usr/local/clang/include/absl/synchronization/mutex.hX
:(      590i| :n                                                   ^s40
e:r /usr/local/clang/include/absl/base/nullability.ht:warning: _241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o:
r22_:a   s590note: s | expanded from macro 'absl_nonnull'i 
g ne  ,x241 p | il#nidsecefirittn _eMo urat_beasxsl(s_cinogonnns_ntiu mlvplol l,_a Ntcoionlnnesu tlM lu&
t,e       x| c*                     ^o 
nasbts l&_,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bl  e529  | / * i gIn file included from  ns2/s2coords.cco r:e 18 d:
 *In file included from  /../src/s2/s2coords.h ):  108 {:
 }In file included from 
 ../src/s2/s2point.h       :|                                         ^27 
:
 In file included from /usr/local/clang/include/absl/base/nullability.ht../src/s2/s2coder.h:r:257u23e::
,23In file included from  :/usr/local/clang/include/absl/status/status.ht :r67unote: :
eexpanded from macro 'absl_nullable'In file included from )
/usr/local/clang/include/absl/status/internal/status_internal.h;:  
29257      :
 | | /usr/local/clang/include/absl/strings/cord.h#                  ~~~~~~~~~~~d:e
504f:i40/usr/local/clang/include/absl/container/internal/btree_container.hn::e 509 :awarning: b47type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:
l _note: n  expanded from macro 'ABSL_INTERNAL_X'u504
l | l a b   l e509e  | x_p N ulli cli ta  bCl eh 
u n      k I|                        ^tA
eBrSaLt_oIrN(TcEoRnNsAtL _CAoTrTdR*I BaUbTsEl__CnAoPnTnUuRlElD _cBoYr(dt)h;i
s      )| )                                       ^,
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                                              ^~~~n
onnull _Non/usr/local/clang/include/absl/container/internal/btree_container.hn:u528l:l3
:       | warning:                      ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |         In file included from  s2/s2coords.cc :A18B:
SIn file included from L../src/s2/s2coords.h_:I108N:
TIn file included from E../src/s2/s2point.hR:N27A:
LIn file included from _../src/s2/s2coder.hA:T23T:
RIn file included from I/usr/local/clang/include/absl/status/status.hB:U67T:
EIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hC:A29P:
T/usr/local/clang/include/absl/strings/cord.hU:R507E:D43_:B Ywarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
his  )507) | )        v o i d   I n i t T r e e ( c o r d _ i n\t
e      r| n                                                   ^a
l:/usr/local/clang/include/absl/container/internal/common.h::C31o:r9d:R enote: pmacro 'ABSL_INTERNAL_IF_true' defined here*
 ab   s31l | _#ndoenfniunlel  AtBrSeLe_)I;N
T      E| R                                          ^N
AL/usr/local/clang/include/absl/base/nullability.h_:I241F:_22t:r unote: eexpanded from macro 'absl_nonnull'(
if  _241s | a#tdiesffiineed ,a b.s.l._)n oinfn_uslalt i_sNfoinendu
l      l| 
        ^      
|                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_XIn file included from (s2/s2coords.cci:n18s:
eIn file included from r../src/s2/s2coords.ht:_108o:
rIn file included from _../src/s2/s2point.ha:s27s:
iIn file included from g../src/s2/s2coder.hn:,23 :
iIn file included from n/usr/local/clang/include/absl/status/status.hs:e67r:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ho:r29_:
a/usr/local/clang/include/absl/strings/cord.hs:s525i:g35n:_ iwarning: mtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
l, c  o525n | s t   & ,a bcsoln:s:tc o&r,d
_      i| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
er  n529a | l : : C o r d R e p *   a b s l _ n utlrluaeb,l et rcuuer)r;e
n      t| _                  ~~~~~~~~~~~l
eaf/usr/local/clang/include/absl/container/internal/btree_container.h_: 511=: 47n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X'p
tr;  
511       | |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :  Anote: Bexpanded from macro 'absl_nullable'S
L_  I257N | T#EdReNfAiLn_eA TaTbRsIlB_UnTuEl_lCaAbPlTeU R_ENDu_lBlYa(btlhei
s      )| )                      ^)
                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2debug.cc532: | 18 :
 In file included from  ../src/s2/s2debug.h : 55 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from In file included from  /usr/local/clang/include/absl/flags/internal/flag.hs2/s2coords.ccf::a43l18s:
:
eIn file included from )/usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2coords.h;::
624108      ::
| 68In file included from                        ^:../src/s2/s2point.h
 :27warning: /usr/local/clang/include/absl/container/internal/btree_container.h:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:In file included from 
496../src/s2/s2coder.h::923::
 In file included from   /usr/local/clang/include/absl/status/status.hnote: 624:macro 'ABSL_INTERNAL_X' defined here | 67
 :
 In file included from e/usr/local/clang/include/absl/status/internal/status_internal.h  x:496p29 | l:
#i/usr/local/clang/include/absl/strings/cord.hdc:ei582ft:i 37nM:eu  twarning: Aetype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Bx
SLLo_cI  kN582T( | EM Ru Nt Ae Lxe_&xX p(mlFuiu cnAicBt,S  LCC_haIulNnlTkeEReRa,Nn AgKLeQ_(uAcaTolTn,Rs ItMB QUCuToaErl_d,C* A KPaTVbUasRllEu_Den_,oB nYnM(uVtlahlli usce)o,)r 
d.      ).|  .                                                                   ^~~~:)
  c o r d _\(
c      o| r        ^d
) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_non/usr/local/clang/include/absl/synchronization/mutex.hn:u635l:l29 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null  
635       | |                       ^ 
explicit MutexLock(Mutex* absl_nonIn file included from ns2/s2coords.ccu:l18l:
 In file included from m../src/s2/s2coords.hu:)108 :
AIn file included from B../src/s2/s2point.hS:L27_:
EIn file included from X../src/s2/s2coder.hC:L23U:
SIn file included from I/usr/local/clang/include/absl/status/status.hV:E67_:
LIn file included from O/usr/local/clang/include/absl/status/internal/status_internal.hC:K29_:
F/usr/local/clang/include/absl/strings/cord.hU:N588C:T17I:O Nwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
u)
        588|  |                             ^ 
 /usr/local/clang/include/absl/container/internal/btree_container.h /usr/local/clang/include/absl/base/nullability.h ::c531241o:n:3s22t::  C warning: onote: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]rexpanded from macro 'absl_nonnull'
d
*   a  241b531 | s | #l _d neAofBniSnnuLle_l  IacNobTsElr_RnNodA_nL;_n
Xu(l      li | n_                ^sN
oenr/usr/local/clang/include/absl/base/nullability.hnt:u_l241olr:_
22a      :s|  s                     ^inote: 
gexpanded from macro 'absl_nonnull'n
,   i241n | s#edretf_ionre_ aasbssilg_nn_oinmnpull,l  c_oNnosIn file included from nts2/s2debug.ccn :u&l18,l:
 
In file included from &      ../src/s2/s2debug.h&| :,                     ^55 
f:
aIn file included from l../src/s2/base/commandlineflags.hs:e21,:

In file included from       /usr/local/clang/include/absl/flags/flag.h| :  ^42
:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/container/internal/btree_container.h::43509:
:52/usr/local/clang/include/absl/synchronization/mutex.h:: 641:note: 68expanded from macro 'ABSL_INTERNAL_X':
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  
509 |       641  |      e x pAlBiScLi_tI NMTuEtReNxALLo_cAkIn file included from T(s2/s2coords.ccMT:uRt18IeB:
xU&In file included from T ../src/s2/s2coords.hEm:_u108C AA:
PBIn file included from TS../src/s2/s2point.hUL:R_27EI:
DNIn file included from _T../src/s2/s2coder.hBE:YR23(NtAhLi:
s_In file included from A)T/usr/local/clang/include/absl/status/status.h)T:,R67 I:
 B In file included from U T /usr/local/clang/include/absl/status/internal/status_internal.hE :_ C29 A :
 P/usr/local/clang/include/absl/strings/cord.h T: U641R E: D33 _: B  Y warning: ( type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t h i
s ) ,   
641\      
 | |                                                                           ^~~~|  
                                                   ^ 
 u/usr/local/clang/include/absl/container/internal/common.hs:i32n:g9 :p onote: imacro 'ABSL_INTERNAL_IF_false' defined heren
ter    32= |  #cdoenfsitn ec hAaBrS*L /usr/local/clang/include/absl/synchronization/mutex.h_a:Ib649Ns:Tl29E_:nRo Nnwarning: Antype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Lu
_lIlF;  
_649f       | a|  l                                ^ se
ex(p/usr/local/clang/include/absl/base/nullability.hilf:i_c241si:ta 22tMi:us tfnote: eixeexpanded from macro 'absl_nonnull'Ldo
,c k  .(.M241.u | t)e x#_*d_e VfaAib_nsAleR_ nGoaSbns_nl_u_
nl      ol|  n        ^mn
uu,l lc o_nNsotn In file included from nCs2/s2convex_hull_query.ccuol:nl26
d:
i      tIn file included from | i../src/s2/s2convex_hull_query.h                     ^o:n
27&:
 In file included from c../src/s2/s2loop.ho:n34d:
)In file included from 
../src/s2/mutable_s2shape_index.h      :In file included from | 30s2/s2earth.cc                            ^:
:
In file included from 16/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h:
::In file included from 67241../src/s2/s2earth.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h:22:24:531:
 :In file included from note: 3expanded from macro 'absl_nonnull'../src/s2/s1angle.h:
: 28  warning: :
241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from  | 
../src/s2/s2point.h#:In file included from d  24s2/s2coords.cce531f:
: | i In file included from 18n e/usr/local/clang/include/absl/hash/hash.h:
A B:In file included from aSb89../src/s2/s2coords.hLs_:
:lIIn file included from 108_N/usr/local/clang/include/absl/hash/internal/hash.h:
nTo:In file included from EnR90../src/s2/s2point.hnNu:
:AlL27_/usr/local/clang/include/absl/strings/string_view.hl:
X: In file included from _(N53../src/s2/s2coder.hion::nsn5423eu::
rlt In file included from l_
o/usr/local/clang/include/absl/status/status.hrwarning:       :_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 67a
                     ^:
s
In file included from s/usr/local/clang/include/absl/status/internal/status_internal.hi:   g2953n:
, | /usr/local/clang/include/absl/strings/cord.h c:io655nn:ss39et:re xwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p_
ro rs  _t655ar | si sn ig g_ nve_ixiepmlwp ilNc,ui ltcl oSCnahsfater SIt&tr,e irn&a&gt,Vo irfe(wac(locsonness,tt
  c      Ch| oa  ^rr
d*/usr/local/clang/include/absl/container/internal/btree_container.h* : a511ba:sbl52s_:nlu _lnote: nlexpanded from macro 'ABSL_INTERNAL_X'aob
n  nl511ue |  l pl  ) c  o{ 
r d       ) | 
                                                     ^        
| A                                      ^B
S/usr/local/clang/include/absl/base/nullability.hL/usr/local/clang/include/absl/base/nullability.h_::I257241N::T2322E::R  Nnote: note: Aexpanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'L

_  A  T257241T |  | #R#dIdIn file included from eBes2/s2debug.ccfUf:iTi18nEen:
_ eIn file included from Ca ../src/s2/s2debug.hAba:bPss55TlUl:
_Rn_In file included from EoDn../src/s2/base/commandlineflags.hn_nu:BuYl21l(ll:
t haIn file included from b_i/usr/local/clang/include/absl/flags/flag.hslN:o)ne42)n :
)u _In file included from l N/usr/local/clang/include/absl/flags/internal/flag.hull l:
 a43       b:
|                       ^ l/usr/local/clang/include/absl/synchronization/mutex.h
 e:
 670       : | 74                      ^ :
   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        670  |   \ 
e      x| p                                                   ^l
ic/usr/local/clang/include/absl/container/internal/common.hi:t32 :R9e:a dnote: emacro 'ABSL_INTERNAL_IF_false' defined hereIn file included from r
s2/s2coords.ccM:u18   t:
e32In file included from x | L../src/s2/s2coords.h#o:dc108ke(:
fMIn file included from iu../src/s2/s2point.hnt:ee27 x:
&A In file included from mBu../src/s2/s2coder.hS :LA23B_S:
LIIn file included from N_/usr/local/clang/include/absl/status/status.hITN:TE67RE:
RNIn file included from AN/usr/local/clang/include/absl/status/internal/status_internal.hAL:_L29I_:
FA/usr/local/clang/include/absl/strings/cord.h_T:TfRa667lI:sB44eU:(T iEwarning: f_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C_A
sPaTtU  iR667sE | Df _ isBeYtda(,tt ih.i.cs. )))C 
o_r      _d| V                                                                          ^~~~AA
_dAvRaGnSc_e_A
n      d| R        ^e
ad(CharIterator* absl_/usr/local/clang/include/absl/synchronization/mutex.hn:o678n:n35u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
t, s  i678z | e _ tIn file included from e xs2/s2convex_hull_query.ccnp:l_26ib:
yctIn file included from ei../src/s2/s2convex_hull_query.hst: )27R;:
e
In file included from a      d../src/s2/s2loop.h| e:r                                           ^34M
:
uIn file included from t/usr/local/clang/include/absl/base/nullability.he../src/s2/mutable_s2shape_index.hx::L24130o::
c22In file included from k:/usr/local/clang/include/absl/container/btree_map.h( M:note: u67texpanded from macro 'absl_nonnull':
e
/usr/local/clang/include/absl/container/internal/btree_container.hx:*534   :241a23b | :s# ldwarning: _epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nf
oinn  en 534ualbl | s  lm _u n)o  nA nBu SlL l_ S  H A_ NR E Do _nL On uC Kl _lt
FrU      NuC| e                     ^)T
;I
O      N| (                      ^m
u)/usr/local/clang/include/absl/container/internal/btree_container.h
:      496| :                                  ^9
: note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_X' defined here:
241:22:   496 | note: #expanded from macro 'absl_nonnull'In file included from d
s2/s2coords.cce:  f18241i:
 | n#In file included from dee../src/s2/s2coords.h f:iAn108Be:
S In file included from aL../src/s2/s2point.hb_:sI27lN_:
TnIn file included from oE../src/s2/s2coder.hRn:NnAuLl23_l:
X In file included from _(N/usr/local/clang/include/absl/status/status.hFo:nu67nnu:
clIn file included from ,l/usr/local/clang/include/absl/status/internal/status_internal.h
 :C      29a| :
l                     ^/usr/local/clang/include/absl/strings/cord.hl
:e674e:,37 :K Qwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l, M  Q674u | a l ,s tKaVtailcu ev,o iMdV aAIn file included from lds2/s2debug.ccvu:aen18,c:
e In file included from (.../src/s2/s2debug.hC.h:.a55)r:
 IIn file included from t ../src/s2/base/commandlineflags.he :r a21 t:
\oIn file included from r
*/usr/local/clang/include/absl/flags/flag.h       :a| b42        ^s:

lIn file included from _/usr/local/clang/include/absl/flags/internal/flag.hn:o43n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l681l: 74i:t ,warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
ize_t   681n | _ b yetxepsl)i;c
i      t|                                      ^R
ea/usr/local/clang/include/absl/base/nullability.hd:e241r:M22u:t enote: xexpanded from macro 'absl_nonnull'L
oc  k241( | M#udteefxi&n em ua bAsBlS_Ln_oInNnTuElRlN A_LN_oAnTnTuRlIlB
U      T| E                     ^_
CAPTURED_BY(this/usr/local/clang/include/absl/container/internal/btree_container.h):,533
:      3| :                                                                         ^~~~ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_o/usr/local/clang/include/absl/synchronization/mutex.hr:_689a:s35s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 ins  e689r | t _ oerx_paIn file included from lss2/s2coords.ccsi:ic18gi:
tnIn file included from  _R../src/s2/s2coords.hiemapd:le108,r:
M ucIn file included from to../src/s2/s2point.henx:sL27to:
 cIn file included from k&../src/s2/s2coder.h(,M: u23&t:
&eIn file included from ,x/usr/local/clang/include/absl/status/status.h* : fa67ab:
lssIn file included from le/usr/local/clang/include/absl/status/internal/status_internal.h_,n:
o29n      n:
| u/usr/local/clang/include/absl/strings/cord.h  ^l:
l730 :/usr/local/clang/include/absl/container/internal/btree_container.hm36u::,509  :warning: c52type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:n
s tnote:  expanded from macro 'ABSL_INTERNAL_X'  C
o730n | d   i509 t |  i  o enx&p  lc io nc idt  ) C
 h      a rAR| aB                                  ^Sn
Lg_e/usr/local/clang/include/absl/base/nullability.h(Ic:No241Tn:sEt22 R:CNo Arnote: dLexpanded from macro 'absl_nonnull'*_
 AaTbT  sR241lI_ | Bn#UodnTeEfn_iunClelA P aTcbUosRlrE_dnD)o_ nB:n uYlcl(o rtd_h_Nio(snc)no)ur,ld ) l  {
}       
 |                            ^ | 
                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #\d
e      f| i                                                   ^n
e /usr/local/clang/include/absl/container/internal/common.ha:b32s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_false' defined heren
ull    32_ | N#odnenfuilnle
       A| B                     ^S
L_INTERNAL_IF_false(if_satisfieIn file included from ds2/s2coords.cc,: 18.:
.In file included from .../src/s2/s2coords.h): 108_:
_In file included from V../src/s2/s2point.hA:_27A:
RIn file included from G../src/s2/s2coder.hS:_23_:

In file included from       /usr/local/clang/include/absl/status/status.h| :        ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: In file included from warning: s2/s2convex_hull_query.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
26:
In file included from ../src/s2/s2convex_hull_query.h  :73627 | :
 In file included from  ../src/s2/s2loop.h : 34c:
oIn file included from n../src/s2/mutable_s2shape_index.hs:t30 :
CIn file included from o/usr/local/clang/include/absl/container/btree_map.hr:d67*:
 /usr/local/clang/include/absl/container/internal/btree_container.ha:b533s:l3_:n owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull   c533o | r d _A;B
S      L| _                ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Xnote: (expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns,l _innosnenrutl_lo r__Naosnsniuglnl_
i      m| p                     ^l
, const &, &&, false,In file included from 
s2/s2debug.cc      :| 18  ^:

In file included from ../src/s2/s2debug.h:/usr/local/clang/include/absl/container/internal/btree_container.h55::
511In file included from :../src/s2/base/commandlineflags.h52::21 :
In file included from note: /usr/local/clang/include/absl/flags/flag.hexpanded from macro 'ABSL_INTERNAL_X':
42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h  :51143 | :
 /usr/local/clang/include/absl/synchronization/mutex.h : 710 : 74 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
ABSL_  I710N | T E ReNxApLl_iAcTiTtR IWBrUiTtEe_rCMAuPtTeUxRLEoDc_kB(YM(uttheixs&) In file included from )ms2/s2coords.cc)u  : A18B :
 SIn file included from L _../src/s2/s2coords.hI : N108 T:
 EIn file included from  R../src/s2/s2point.hN A: L27 _:
 AIn file included from T T../src/s2/s2coder.h R: I23 B:
 UIn file included from  T/usr/local/clang/include/absl/status/status.hE _: C67A P:
 T\In file included from U
R/usr/local/clang/include/absl/status/internal/status_internal.hE      :D| _29                                                   ^B:

Y/usr/local/clang/include/absl/strings/cord.h(/usr/local/clang/include/absl/container/internal/common.h:t:795h31:i:43s9:): ) warning: 
note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      macro 'ABSL_INTERNAL_IF_true' defined here
| 
                                                                         ^~~~
     79531 |  |  # dferfiienned  AvBoSiLd_ IANbTsElRFNoArLm_aItFF/usr/local/clang/include/absl/synchronization/mutex.h_l:tu718sr:hu35(e:a( biwarning: sftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l_
s:a:t  Ci718os | rf di *ee dxa,pb ls.il.c_.in)to  niWnfru_ilstlae trciMosurftdie,ex
dL      o
| c                                                ^k| 
(        ^M
/usr/local/clang/include/absl/base/nullability.hu:t241e:x22*:  anote: bexpanded from macro 'absl_nonnull's
l_In file included from   ns2/s2convex_hull_query.cco241n: | n26#udl:
elfIn file included from i n../src/s2/s2convex_hull_query.hem: u27a):
b
sIn file included from       l../src/s2/s2loop.h| _:                                  ^n34o
:
nIn file included from n../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.hu::l30l241:
 :_In file included from 22N/usr/local/clang/include/absl/container/btree_map.h:o:n 67n:
unote: /usr/local/clang/include/absl/container/internal/btree_container.hlexpanded from macro 'absl_nonnull':l

533      :  | 3241                     ^: | 
 #warning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
fine   a533b | s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uXl(li
n      s| e                     ^r
t_or_assign, insert_or_assign_impl, coIn file included from ns2/s2debug.ccs:t18 :
&In file included from ,../src/s2/s2debug.h :&55&:
,In file included from  ../src/s2/base/commandlineflags.hf:a21l:
sIn file included from e/usr/local/clang/include/absl/flags/flag.h,:
42      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/flags/internal/flag.h
:43:
  534/usr/local/clang/include/absl/synchronization/mutex.h | : 722 : 74 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        722  |      etxrpulei)c;i
t       | W                  ~~~~~r
ite/usr/local/clang/include/absl/container/internal/btree_container.hr:M511u:t47e:x Lnote: oexpanded from macro 'ABSL_INTERNAL_X'c
k(Mu  t511e | x &   m u   A B S L _AIBNSTLE_RINNATLE_RANTATLR_IABTUTTREI_BCUATPET_UCRAEPDT_UBRYE(Dt_hBiYs()t,h
i      s| )                                                                         ^~~~)
)                        \
      |                                               ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 731s2/s2coords.cc | : 18 :
eIn file included from x../src/s2/s2coords.hp:l108i:
cIn file included from i../src/s2/s2point.ht: 27W:
rIn file included from i../src/s2/s2coder.ht:e23r:
MIn file included from u/usr/local/clang/include/absl/status/status.ht:e67x:
LIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hc:k29(:
M/usr/local/clang/include/absl/strings/cord.hu:t898e:x27*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_no  n898n | u l lf rmiue,n dc ocnosnts tC oCnodridtziIonnf&o *c oanb/usr/local/clang/include/absl/container/internal/btree_container.hds:l)536_
:n      u24| l:l                                  ^ a
warning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l/usr/local/clang/include/absl/base/nullability.he
 :G241  e:t536C22o | r: d  znote: I nexpanded from macro 'absl_nonnull'f o
 F o  r T241e s |  #t d i en fg i( n
 e        a| b sf                          ^la
_lns/usr/local/clang/include/absl/base/nullability.heo:n)n;257u
l:l       23| _:N                       ^ o
note: nexpanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/btree_container.hn
:u496  l:l2579
 | :#      d e| note:                      ^fmacro 'ABSL_INTERNAL_X' defined here
i
ne   a496b | s#ld_enfuilnlea bAlBeS L__NIuNlTlEaRbNlAeL
_      X| (                      ^F
unc, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 | In file included from  s2/s2coords.cc :A18B:
SIn file included from L../src/s2/s2coords.h_:I108N:
TIn file included from E../src/s2/s2point.hR:N27A:
LIn file included from _../src/s2/s2coder.hX:(23i:
nIn file included from s/usr/local/clang/include/absl/status/status.he:r67t:
_In file included from o/usr/local/clang/include/absl/status/internal/status_internal.hr:_29In file included from a:
s2/s2debug.ccs:/usr/local/clang/include/absl/strings/cord.hs18:i:
927gIn file included from :n../src/s2/s2debug.h43,:: 55 i:
warning: nIn file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s../src/s2/base/commandlineflags.h
e:r21t:
  _In file included from 927o/usr/local/clang/include/absl/flags/flag.h | r: _ 42 a:
s In file included from s /usr/local/clang/include/absl/flags/internal/flag.h i :g 43n _:
 i /usr/local/clang/include/absl/synchronization/mutex.hm :p 801l :, 20  :c   owarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s 
t   &   , 801   | &  & ,   C to r nudei ,tCi
oor      nd| (R  ^be
po*o/usr/local/clang/include/absl/container/internal/btree_container.h l: a(509b*:sa52lb_:snl _unote: nlexpanded from macro 'ABSL_INTERNAL_X'ol
anbnl  eu509 lr | le p  f)u; 
n c       )|  (                                          ^v o
 i d/usr/local/clang/include/absl/base/nullability.h *:A 257BaSb:Ls_l23I_:Nn Tunote: lEexpanded from macro 'absl_nullable'lRa
NbA  iLl257_i | A#tdTyeTf_iRunInek BnUoTwaEn_b)C,s
lA      P_T| U                   ^R
ED_/usr/local/clang/include/absl/base/nullability.hB:Y241(:t22h:i snote: )expanded from macro 'absl_nonnull')
,    241  |  # d e  n u l l a b l e   _ N u l l a b l\e

            | |                                                    ^                      ^

/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABIn file included from Ss2/s2coords.ccL:_18I:
NfIn file included from Ti../src/s2/s2coords.hEn:Re108N :
AaIn file included from Lb../src/s2/s2point.h_s:Il27_Fn_:
otnIn file included from rn../src/s2/s2coder.huu:el(l23i :
f_In file included from _N/usr/local/clang/include/absl/status/status.hso:an67ntu:
ilIn file included from sl/usr/local/clang/include/absl/status/internal/status_internal.hf
:i      29e| :
d                     ^/usr/local/clang/include/absl/strings/cord.h,
: 929.:.26.:)  warning: iIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]fs2/s2debug.cc
_:s18a:
  tIn file included from ../src/s2/s2debug.h929i: | s55 f i:
 eIn file included from  dv../src/s2/base/commandlineflags.h
o:      i21d| :
         ^In file included from S
w/usr/local/clang/include/absl/flags/flag.ha:p42(:
IIn file included from n/usr/local/clang/include/absl/flags/internal/flag.hl:i43n:
e/usr/local/clang/include/absl/synchronization/mutex.hR:e801In file included from p:s2/s2convex_hull_query.cc*45: :26a :
bIn file included from warning: s../src/s2/s2convex_hull_query.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l:_
27n:
oIn file included from n../src/s2/s2loop.hn  u:l80134l |  :
r h In file included from sC../src/s2/mutable_s2shape_index.ho)n:d;30i
:
t      In file included from i| /usr/local/clang/include/absl/container/btree_map.ho                         ^:n
67(:
b/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.ho:o:l241535 :(:*22a3b::s  lnote: _warning: expanded from macro 'absl_nonnull'n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o

n  n241u | l#  ld535e  | ff ui nnAceB )Sa(bLsvlo__iIndNo*n TanEubRlsNll_An Lu__lNXlo(naibnniusllliet
ry      t__| o                     ^urn
k_naoswsni)g,n
,       | i                                            ^n
ser/usr/local/clang/include/absl/base/nullability.ht:_289o:r34_:a snote: sexpanded from macro 'absl_nullability_unknown'i
gnIn file included from _  s2/s2coords.cci289:m | p#18ld:
,eIn file included from  f../src/s2/s2coords.hicn:oe108n :
asbIn file included from stl../src/s2/s2point.h _:&n27,u l&l:
&aIn file included from ,b i../src/s2/s2coder.hlt:ir23tuye_:
u,In file included from n
k/usr/local/clang/include/absl/status/status.hn      :o| 67w  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n:
 
In file included from _/usr/local/clang/include/absl/status/internal/status_internal.h  N:u536l29 | l:
 _/usr/local/clang/include/absl/strings/cord.h u: n932 s:p e17c i: f  iwarning:  etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d 

        |                                   ^   
 932  |     f a lcsoen)s;t
       c| In file included from h                  ~~~~~~s2/s2debug.cca
:r18*:
 /usr/local/clang/include/absl/container/internal/btree_container.hIn file included from a:b../src/s2/s2debug.hs509:l:_55n47:
u:In file included from l l../src/s2/base/commandlineflags.hnote: a:expanded from macro 'ABSL_INTERNAL_X'b21l
e:
 In file included from d/usr/local/clang/include/absl/flags/flag.h  a:509t42a | :
( )In file included from   /usr/local/clang/include/absl/flags/internal/flag.h c: o43n s :
 t/usr/local/clang/include/absl/synchronization/mutex.h ;: 
802       A:| B                ^S19
L:_ /usr/local/clang/include/absl/base/nullability.hI:warning: N257type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T:
E23R:N   A802note: L | expanded from macro 'absl_nullable'_ 
A T   T 257R  | I #B dU eT fE i_ nC eAv PoaTibUdsR*lE _Dan_buBslYll(_atnbhulilesl )a_)bN,iu ll il ta yb _l ue n 
k       n o|  w                      ^ n
   a r g ) ; 
        |                    ^ 
 In file included from \/usr/local/clang/include/absl/base/nullability.hs2/s2coords.cc
::      28918| ::
                                              ^~~~34In file included from 
:../src/s2/s2coords.h :108note: :
expanded from macro 'absl_nullability_unknown'In file included from 
../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/btree_container.h::27  535:
289:In file included from  | 3../src/s2/s2coder.h#::d e23warning: f:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]iIn file included from n
e/usr/local/clang/include/absl/status/status.h /usr/local/clang/include/absl/container/internal/btree_container.ha::b67511s:
:lIn file included from 52_/usr/local/clang/include/absl/status/internal/status_internal.h:n: u29note: l:
expanded from macro 'ABSL_INTERNAL_X'l
a/usr/local/clang/include/absl/strings/cord.hb:i934  l:511i31t | :y _  uwarning:  ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] k
 n o w n    934 _ | ANBu S lLl __ IvNouTniEdsRp NesAecLit_f_AdiaetTda
T(      Rc| I                                 ^Bo
UnTsEt_ CcAhPaTrU*R EaDb_sBlY_(ntuhlilsa)bIn file included from )ls2/s2debug.cc)e:  d18 a:
 tIn file included from  a../src/s2/s2debug.h ,:  55s :
i z In file included from  e../src/s2/base/commandlineflags.h _: t21  :
 nIn file included from  )/usr/local/clang/include/absl/flags/flag.h; :
 42       :
 | In file included from                                ^/usr/local/clang/include/absl/flags/internal/flag.h 
: 43 /usr/local/clang/include/absl/base/nullability.h:
 :/usr/local/clang/include/absl/synchronization/mutex.h\257:
:814      23:| :20                                                   ^ :
 note: warning: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
32  :2579 | :#   d814note: e | macro 'ABSL_INTERNAL_IF_false' defined heref 
 iCn   eo32n  | da#bisdtli_oennfu(liblonoeal  A(bB*lSaeLb _s_lNI_uNnloTnlEanRbuNllAleL 
f_u      In| Fc                      ^_)
f(aTl*s ea(bisfl__snautlilsafbiieldi,tIn file included from  ys2/s2coords.cc._:.u18n.k:
)nIn file included from  o../src/s2/s2coords.h_w:_n108V):
A,In file included from _
../src/s2/s2point.hA      :R| 27G                   ^:
S
In file included from _../src/s2/s2coder.h_/usr/local/clang/include/absl/base/nullability.h:
:23      241:
| :In file included from         ^22/usr/local/clang/include/absl/status/status.h
:: 67:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  241/usr/local/clang/include/absl/strings/cord.h | :#935d:e11f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l935_ | n o n n uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll setIn file included from _s2/s2debug.ccd:a18t:
aIn file included from (../src/s2/s2debug.hs:i55z:
eIn file included from _../src/s2/base/commandlineflags.ht: 21n:
)In file included from ;/usr/local/clang/include/absl/flags/flag.h : 42/:
/In file included from  /usr/local/clang/include/absl/flags/internal/flag.hW:r43i:
t/usr/local/clang/include/absl/synchronization/mutex.he: 814d:a42t:a  warning: ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
 th  e814  | r e sCuolIn file included from nts2/s2convex_hull_query.ccd
:i      26t| :
i          ^In file included from o
../src/s2/s2convex_hull_query.hn:(/usr/local/clang/include/absl/base/nullability.h27b::
o241In file included from o:../src/s2/s2loop.hl22: :34( :
*In file included from note: a../src/s2/mutable_s2shape_index.hexpanded from macro 'absl_nonnull'b:
s30l:
  _In file included from 241n/usr/local/clang/include/absl/container/btree_map.h | o:#n67dn:
eu/usr/local/clang/include/absl/container/internal/btree_container.hfl:il538n :ef23 u:an bcswarning: )lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_(
Tn*o   n538an | bu sl ll _  n _u Nlo ln anb uillli
 t y      _ u|  n                     ^ k
 n o w nt)r,u
e      )| ;                                         ^

      | /usr/local/clang/include/absl/base/nullability.h                      ^:
289:34/usr/local/clang/include/absl/container/internal/btree_container.h:: 496In file included from :note: s2/s2coords.cc9expanded from macro 'absl_nullability_unknown'::
18 :
In file included from note:   ../src/s2/s2coords.hmacro 'ABSL_INTERNAL_X' defined here289:
 | 108#:
dIn file included from e  f../src/s2/s2point.h496i:n | e27# :
adIn file included from eb../src/s2/s2coder.hsf:li_23nn:
euIn file included from  l/usr/local/clang/include/absl/status/status.hAl:Ba67Sb:
LiIn file included from _l/usr/local/clang/include/absl/status/internal/status_internal.hIi:Nt29Ty:
E_/usr/local/clang/include/absl/strings/cord.hRu:Nn937Ak:Ln35_o:Xw (nwarning: F type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u_
nNcu,   l937Cl | a_ u n ls lpaeebecs,li:f i:KecdQou
rad      _l| i,                                 ^ n
MtQeuranla,l :K:VCaolruIn file included from deRs2/s2debug.cc,e: p18M*:
 VaIn file included from ab../src/s2/s2debug.hls:ul55e_:
,nIn file included from u l../src/s2/base/commandlineflags.h.l:.a21.b:
)lIn file included from  e/usr/local/clang/include/absl/flags/flag.h  : t42 r:
e In file included from e\(/usr/local/clang/include/absl/flags/internal/flag.h)
 :      c43o| :
n        ^/usr/local/clang/include/absl/synchronization/mutex.hs
t:;815
:      16| :                                  ^ 
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:   815 | note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i nTe*  aabbssll__nnuullllaabbliel i_tNyu_lulnakbnloew
n       | a                      ^r
g);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289In file included from  | s2/s2coords.cc#:d18e:
fIn file included from i../src/s2/s2coords.hn:e108 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from u../src/s2/s2coder.hl:/usr/local/clang/include/absl/container/internal/btree_container.hl23:a:
537bIn file included from :i/usr/local/clang/include/absl/status/status.h3l::i67 t:
warning: yIn file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_/usr/local/clang/include/absl/status/internal/status_internal.hu
n:k29n:
  o537/usr/local/clang/include/absl/strings/cord.hw | :n  938 _:AN35Bu:Sl Llwarning: __type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]uIn
sNpTe  cE938iRf | Ni Ae Ld _ 
Xa      (b| is                                 ^nl
s:e:rcto_rodr__ianstseirgnna,l :i:nCsoerrdtR_eopr*_ aasbIn file included from sss2/s2debug.ccli_:gn18on:
n_nIn file included from iu../src/s2/s2debug.hml:pl55 la:
,sIn file included from  _../src/s2/base/commandlineflags.hct:or21ne:
seIn file included from t(/usr/local/clang/include/absl/flags/flag.h ):& 42,c:
 oIn file included from n&/usr/local/clang/include/absl/flags/internal/flag.hs&t:,;43 
:
t      /usr/local/clang/include/absl/synchronization/mutex.hr| :                                  ^u830
e:,14
/usr/local/clang/include/absl/base/nullability.h:      : | 241warning:   ^:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
22
:/usr/local/clang/include/absl/container/internal/btree_container.h :509note:   :expanded from macro 'absl_nonnull'83052
 | :     note:  241 expanded from macro 'ABSL_INTERNAL_X' |  
#In file included from  d  s2/s2crossing_edge_query.ccbe509f:io | o28ln e  :
a( *In file included from abbs l../src/s2/s2edge_crosser.hs l _: n23 o_n:
n nIn file included from ou ../src/s2/s2edge_crossings.hnlnl :Au l47lB _:
NSofnuIn file included from nLcn../src/s2/s2predicates.hu_l)l:
I(55      NT:
| T*In file included from                      ^E /usr/local/clang/include/absl/flags/flag.h
RaN:bA40sL:
l__/usr/local/clang/include/absl/flags/commandlineflag.hAn:Tu163lT:RIn file included from l56aIbs2/s2coords.cci:B:l U18iwarning: T:
ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]EIn file included from y
__uC../src/s2/s2coords.hnA:Pk  n108oTw163n:
)U | RIn file included from , E ../src/s2/s2point.h
Db:      _o27| B             ^Yo:

(lIn file included from t /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.hhP::ia24123sr::
)s22In file included from )e:F/usr/local/clang/include/absl/status/status.h, r: note: o67m expanded from macro 'absl_nonnull':
( 
In file included from a b/usr/local/clang/include/absl/status/internal/status_internal.h   s:241 l29 |  : :
 #:/usr/local/clang/include/absl/strings/cord.h ds:t e 939 rf: ii17 nng: e_    avwarning:  bitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e s
lw _    nv a939o nln | \uu 
 el      l , | c                                                     ^o_ns
tNsdo/usr/local/clang/include/absl/container/internal/common.hnt:::n 31csu:htl9lar:
ri       *n| note:                      ^ gmacro 'ABSL_INTERNAL_IF_true' defined here
a*
b sa   bl31_In file included from s | ns2/s2debug.ccol#:n_d18nnue:
folIn file included from inl../src/s2/s2debug.h nne:au l55lsA_:
 BcIn file included from heSr../src/s2/base/commandlineflags.haLrr:_so21(I)r:
N )cIn file included from T;o/usr/local/clang/include/absl/flags/flag.hE
n:R      s42N| t:
A                                                       ^;In file included from L

/usr/local/clang/include/absl/flags/internal/flag.h_      :I/usr/local/clang/include/absl/base/nullability.h| 43F:                ^:
_241
/usr/local/clang/include/absl/synchronization/mutex.ht::/usr/local/clang/include/absl/base/nullability.hr22830:u::241e 36:(:note: 22i expanded from macro 'absl_nonnull':f
warning:  _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s  note: 
a241expanded from macro 'absl_nonnull't | 
  i#  830sd241 | fe |  i f#ed i d e nbe, fo oali.nbe .s (.*la)ba_b siln_sflon_o_nnnsunnoanlnuutlllill s_  ffNu_nioeNconnd)
nn(      Tuul| *l l        ^
la
b      
s| l                           ^_| 
                     ^n
ullabilIn file included from is2/s2convex_hull_query.cct:y26_:
uIn file included from n../src/s2/s2convex_hull_query.hk:nIn file included from 27os2/s2coords.cc:
w:nIn file included from 18)../src/s2/s2loop.h:
,:
In file included from 34      ../src/s2/s2coords.h:
| :In file included from                                    ^108../src/s2/mutable_s2shape_index.h
:
:In file included from 30/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h:
::In file included from 28927/usr/local/clang/include/absl/container/btree_map.h::
:34In file included from 67:../src/s2/s2coder.h:
 :/usr/local/clang/include/absl/container/internal/btree_container.h23note: ::
expanded from macro 'absl_nullability_unknown'537In file included from 
:/usr/local/clang/include/absl/status/status.h3:  :67289 :
 | In file included from warning: #/usr/local/clang/include/absl/status/internal/status_internal.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d:
e29f:
i/usr/local/clang/include/absl/strings/cord.hn:  e941 537a: | b35s l :_An uBwarning: lStype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lLa
b_iIl  NIn file included from i941Ts2/s2crossing_edge_query.cct | E :yR_ 28Nu n :
aAkLnIn file included from b_so../src/s2/s2edge_crosser.hXlw::(n: 23ic_:
noNIn file included from sru../src/s2/s2edge_crossings.hleld_:urn_47its_:
npoeIn file included from ctre../src/s2/s2predicates.hi_fr:aine55sadl:
:s:iC
In file included from go      /usr/local/clang/include/absl/flags/flag.hnr| :,d                                 ^40 R
:
ie/usr/local/clang/include/absl/flags/commandlineflag.hnp:s*193e :ra27tb:_s olwarning: r_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_n
auslsl  ia193gb | nIn file included from l e_s2/s2debug.cc  ic:vml18eiapr:
(r)l;In file included from t,
../src/s2/s2debug.hu       :ac| 55lo                                  ^:
 n
sIn file included from v/usr/local/clang/include/absl/base/nullability.ht../src/s2/base/commandlineflags.ho: :i257&21d:,:
 23 In file included from R:&/usr/local/clang/include/absl/flags/flag.he &:anote: ,expanded from macro 'absl_nullable'42d 
:
(tIn file included from   vr/usr/local/clang/include/absl/flags/internal/flag.h257ou:e | i43d,#:
*
d/usr/local/clang/include/absl/synchronization/mutex.h       e:a| f831b  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i:s
n46le  :_ 538a n | bwarning: so ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]nl _
u ln lu    ldl831a s | b lte     ) _    N t c uylo plna esnb t a l e 
mt=       er uaeb| 0                      ^;)s
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;:      
:|       t                          ^y| 
                  ~~~~~p
e/usr/local/clang/include/absl/base/nullability.h_:i/usr/local/clang/include/absl/container/internal/btree_container.h241d::e50922n::t47i :t note: ynote: expanded from macro 'absl_nonnull'<expanded from macro 'ABSL_INTERNAL_X'
T
>  :241: |   t#y509dp | ee f* i  na eb  sIn file included from  a l s2/s2coords.cc b_sn: lu_18Alnl:
BoaIn file included from Snbn../src/s2/s2coords.hLiu:_ll108Iil:
Nt In file included from Ty__../src/s2/s2point.hENu:Ronnknnuo27Nlw:
nAlLIn file included from 

_../src/s2/s2coder.h            A:| | T                     ^23                                             ^T
:

RIn file included from I/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.hB::U67289T:
:EIn file included from 34_/usr/local/clang/include/absl/status/internal/status_internal.h:C: A29note: P:
expanded from macro 'absl_nullability_unknown'T
/usr/local/clang/include/absl/strings/cord.hU:R950  E:289D18 | _:#Bd Yewarning: (ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ti
hnies   )a950)b | ,s  l  _  n  uC lo lr ad bR ie lp iF tl ya _t u* n  ka nb os wl n_  n _o Nn\un
lu      ll| _l                                              ^~~~u 
nMsapkeecFil/usr/local/clang/include/absl/container/internal/btree_container.hfa:it537eW:di3
t:h       E| warning: x                                 ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t

ra/usr/local/clang/include/absl/container/internal/btree_container.hC:a511p:a52c:i tnote: yexpanded from macro 'ABSL_INTERNAL_X'(
siz  e511_ | t   e x t r a )In file included from  ;s2/s2debug.cc 
:       18A| :
B                 ^In file included from S
../src/s2/s2debug.hL:_/usr/local/clang/include/absl/base/nullability.h55I::
N241In file included from T:../src/s2/base/commandlineflags.hE22:R:21N :
AIn file included from note: L/usr/local/clang/include/absl/flags/flag.hexpanded from macro 'absl_nonnull'_:
A42T:
  TIn file included from 241R/usr/local/clang/include/absl/flags/internal/flag.h | I:#B43dU:
eT/usr/local/clang/include/absl/synchronization/mutex.hfEi:_n844Ce:A 10Pa:Tb Uswarning: Rltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E_
Dn_o  Bn844Yn | (u tl hl i  s_ )N )oT)n* n  ua lb ls 
l _       n|  o                     ^ n
 n u l l   o b j e c t , 
        | \         ^

      | /usr/local/clang/include/absl/base/nullability.h                                                   ^:
In file included from 241/usr/local/clang/include/absl/container/internal/common.hs2/s2coords.cc:::223118:::
 9In file included from note: :../src/s2/s2coords.hexpanded from macro 'absl_nonnull' :
108note: :
  macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 241
../src/s2/s2point.h | :#   27d31:
e | In file included from #f../src/s2/s2coder.hid:en23ef:
 iaIn file included from bn/usr/local/clang/include/absl/status/status.hsel: _67An:
BoIn file included from Sn/usr/local/clang/include/absl/status/internal/status_internal.hnLu:_l29Il:
N /usr/local/clang/include/absl/strings/cord.hT_:EN957Ro:Nn27An:Lu _lwarning: Iltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F

_      t| r                     ^u  
e957( | i f _ s avtoiisdf iSeedt,TIn file included from  rs2/s2debug.cc.e:.e18.(:
)CIn file included from  o../src/s2/s2debug.hir:fd55_R:
seIn file included from ap../src/s2/base/commandlineflags.ht*:i 21sa:
fbIn file included from is/usr/local/clang/include/absl/flags/flag.hel:d_42
n:
      oIn file included from n| /usr/local/clang/include/absl/flags/internal/flag.hn        ^:u
l43l:
 /usr/local/clang/include/absl/synchronization/mutex.hr:e845p:,45 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
In file included from ts2/s2convex_hull_query.cc :  C26845o:
 | rIn file included from  d../src/s2/s2convex_hull_query.h z: U27 p:
d In file included from  a../src/s2/s2loop.hbt:oe34oS:
clIn file included from  o../src/s2/mutable_s2shape_index.h(p:ae30b&:
 sIn file included from ls/usr/local/clang/include/absl/container/btree_map.hc::o:67tp:
ey/usr/local/clang/include/absl/container/internal/btree_container.h)p:;e537
_:      i3| d:                          ^e 
nwarning: t/usr/local/clang/include/absl/base/nullability.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i:t
241y:<22T:>   :537note: : | expanded from macro 'absl_nonnull't y
 pA  Be241S: | :L*#_ IdaNbeTfsEilR_nNneAo Lna_nbXus(llil_n snmeoertntIn file included from hn_us2/s2edge_clipping.ccoodl):rl(18)_ a:
)_sNIn file included from o;s../src/s2/s2edge_clipping.hn
i:n      g34u| n:
,l                                            ^In file included from  l

../src/s2/base/logging.hi      :/usr/local/clang/include/absl/base/nullability.hn| 21                     ^:s:

241eIn file included from :r/usr/local/clang/include/absl/log/check.h22t::_37 o:
note: rIn file included from expanded from macro 'absl_nonnull'_/usr/local/clang/include/absl/log/internal/check_impl.h
a:s21  s:
241iIn file included from  | g/usr/local/clang/include/absl/log/internal/check_op.hn#_dieIn file included from :mfs2/s2coords.cc41pil::
n,e 18In file included from  c:
o/usr/local/clang/include/absl/log/internal/strip.haIn file included from n:b../src/s2/s2coords.hs26s:t:
l108 In file included from _:
&/usr/local/clang/include/absl/log/internal/log_message.hnIn file included from ,:o../src/s2/s2point.h 53n:&:
&n27,/usr/local/clang/include/absl/types/source_location.h u:
l:tIn file included from l113r../src/s2/s2coder.h :u:_19e23N:o,:
 n
nIn file included from warning:       u/usr/local/clang/include/absl/status/status.hltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l| :

  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~67      
:
|   In file included from                        ^113/usr/local/clang/include/absl/status/internal/status_internal.h538
 | : |  29  :
  /usr/local/clang/include/absl/strings/cord.h  :  961  : c34 o: n  swarning:  ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
 c h a   r961 * |  In file included from     ts2/s2debug.cca r :vbus18oel):
i_d; In file included from Sn
o../src/s2/s2debug.he      n:t| n55uT                  ~~~~~r:
l
leIn file included from  e../src/s2/base/commandlineflags.h/usr/local/clang/include/absl/container/internal/btree_container.hfO::ir21511lE:
:emIn file included from p47_/usr/local/clang/include/absl/flags/flag.ht:yn:a m(42Cnote: e:
oexpanded from macro 'ABSL_INTERNAL_X' In file included from r
=/usr/local/clang/include/absl/flags/internal/flag.hd :R_  _43be511p:
u | */usr/local/clang/include/absl/synchronization/mutex.h i l:ta b850si n:l _ 16_F I:Ln u E lwarning: l( type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a) )
bAl   {Be850
S  | r      eL | p_, 
                  ^I       
N | T                                 ^ /usr/local/clang/include/absl/base/nullability.h E
R:cN241/usr/local/clang/include/absl/base/nullability.hoAn:s:L22t257_:A : TTT23Rnote: *:Iexpanded from macro 'absl_nonnull'  B
anote: Uexpanded from macro 'absl_nullable'Tb  s
E241_l | _#n  oCnd257eAnP | f#udTeifliUnnlRee  Eo bajDeab_scbtB,ls_Y
(ln      t_u| h               ^nlil
osa/usr/local/clang/include/absl/base/nullability.hbn)n:l)u)241el  _:Nl  22u _:l lNa b o note:  l nexpanded from macro 'absl_nonnull'e n 

u          l|                        ^241l 
  | 
#       d |  e                     ^ f
 i n e   a\b
s      l| _                                              ^~~~nIn file included from 
os2/s2coords.ccn:n18u:
lIn file included from l../src/s2/s2coords.h :_108N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2edge_clipping.cc::96818::
31In file included from :../src/s2/s2edge_clipping.h :In file included from 34warning: s2/s2debug.cc:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:In file included from 
18../src/s2/base/logging.h:
:In file included from 21../src/s2/s2debug.h  :
:968In file included from 55 | /usr/local/clang/include/absl/log/check.h:
 : In file included from 37 ../src/s2/base/commandlineflags.h:
 :vIn file included from o21i/usr/local/clang/include/absl/log/internal/check_impl.h:
d:In file included from  21E/usr/local/clang/include/absl/flags/flag.h:
m:In file included from p42/usr/local/clang/include/absl/log/internal/check_op.hl:
a:cIn file included from e41T/usr/local/clang/include/absl/flags/internal/flag.h:
r:In file included from e43/usr/local/clang/include/absl/log/internal/strip.he:
(:/usr/local/clang/include/absl/synchronization/mutex.hC26o:r:
d851In file included from R:e/usr/local/clang/include/absl/log/internal/log_message.h45p::*53  :
warning: a/usr/local/clang/include/absl/types/source_location.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b:s
133l:_/usr/local/clang/include/absl/container/internal/btree_container.h25  n:o:851541n  | :nwarning:  24 utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: l
l   warning: r   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e 133b
p | o,o     lM541c e | to(n haosd Ibdsetn tle: :itxy pfep_ irei d ern tci  moet nty s h<tT >o:  cd:)t h ;yap e
r :f      *:a*|  la ba                              ^ssb
sel)l/usr/local/clang/include/absl/base/nullability.h_;_:nn
o241o      n:n| n                       ^22nu
l:u/usr/local/clang/include/absl/container/internal/btree_container.hll :l 496fnote:  :iexpanded from macro 'absl_nonnull'm9l
e:et  h o_241note: dn | macro 'ABSL_INTERNAL_X' defined here#)dae
f(m)ie  
n(496)      e |   | #                                            ^acbds
oeln_/usr/local/clang/include/absl/base/nullability.hfsn:ito241nn e:nn o22uAe:xlBl  cSenote: _LNpoexpanded from macro 'absl_nonnull'_tn
nI u  lN{241
lT | E      
#Rd| e      fNi                        ^n| eA 
                     ^La
_/usr/local/clang/include/absl/base/nullability.hbXs:(l241F_:un22on:ncn, u note: lClexpanded from macro 'absl_nonnull'a 
_In file included from lN  os2/s2coords.ccl241n:e | n18uel#l:

,dIn file included from        e../src/s2/s2coords.hf| K                     ^:iQ
u108na:
elIn file included from  ,../src/s2/s2point.ha :bM27sQ:
ulIn file included from a_../src/s2/s2coder.hln:,o23 n:
KnIn file included from Vu/usr/local/clang/include/absl/status/status.hlIn file included from a:ls2/s2debug.ccl67 :u:
e_18In file included from ,N:
o/usr/local/clang/include/absl/status/internal/status_internal.h In file included from n:M../src/s2/s2debug.hn29V:u:
a55l/usr/local/clang/include/absl/strings/cord.hl:
l:uIn file included from 
972e../src/s2/base/commandlineflags.h      :,:| 31 21                     ^:.:

 .In file included from warning: ./usr/local/clang/include/absl/flags/flag.h)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: 
42 :
 In file included from    /usr/local/clang/include/absl/flags/internal/flag.h 972:\ | 43 In file included from 
:
 s2/s2edge_clipping.cc      /usr/local/clang/include/absl/synchronization/mutex.h :| : 18        ^855v:

:oIn file included from 34i../src/s2/s2edge_clipping.hd::  34E:
warning: mIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p../src/s2/base/logging.h
l:a21c:
e  TIn file included from 855r/usr/local/clang/include/absl/log/check.he | e:( 37C :
eoIn file included from rx/usr/local/clang/include/absl/log/internal/check_impl.hpdl:iR21ce:
iptIn file included from  */usr/local/clang/include/absl/log/internal/check_op.h C:aob41ns:
dli_In file included from nt/usr/local/clang/include/absl/log/internal/strip.hio:non26nu:
(lcIn file included from oln /usr/local/clang/include/absl/log/internal/log_message.hrse:pt53 ,b :
oc/usr/local/clang/include/absl/types/source_location.hoo:ln142s*: ta25b :Is lnwarning: l_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ni
noenDna  ut142lal |  & c o ncpda)o;rne
nst      ,t
| e                                 ^      x
| p                              ^r/usr/local/clang/include/absl/base/nullability.h
 :c241/usr/local/clang/include/absl/base/nullability.ho:n:22s241t: : c22note: h:expanded from macro 'absl_nonnull'a /usr/local/clang/include/absl/container/internal/btree_container.h
rnote: :*   expanded from macro 'absl_nonnull'540241a
: | b3s  #:l241d e_ | nwarning: of#idpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nne
fnei naeu   blsa540blsl |  l_ nf_u nonnAncotBiunlnSuolnL_lnla m_ __NeI(NooNn)n TcnonEuunlRllslN
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      L       | _                     ^Xn| 
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nxsceerptt_ o{r
_      a| s                        ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,In file included from 241 s2/s2coords.cci::n2218s::
e In file included from r../src/s2/s2coords.hnote: t:expanded from macro 'absl_nonnull'_108
o:
rIn file included from   _../src/s2/s2point.h241a: | s27#s:
diIn file included from egf../src/s2/s2coder.hni:_n23ie:
m In file included from pa/usr/local/clang/include/absl/status/status.hlb:,s 67&In file included from l:
&s2/s2debug.cc_In file included from ,:n/usr/local/clang/include/absl/status/internal/status_internal.h 18o:c:
n29oIn file included from n:
n../src/s2/s2debug.hu/usr/local/clang/include/absl/strings/cord.hs:l:t55l978 :
 :&In file included from _36,../src/s2/base/commandlineflags.hN: :o f21nwarning: a:
lntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from su
l/usr/local/clang/include/absl/flags/flag.hel:
,  42      
978:
|        | In file included from                      ^|  /usr/local/clang/include/absl/flags/internal/flag.h
  ^ :
 43 :
/usr/local/clang/include/absl/container/internal/btree_container.hv:o/usr/local/clang/include/absl/synchronization/mutex.h509i::d886 52:C:o31 m:note: m expanded from macro 'ABSL_INTERNAL_X'iIn file included from 
warning: tIn file included from s2/s2edge_clipping.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  Ts2/s2crossing_edge_query.ccr:
509:e18 | 28e:
   :
(In file included from c886 In file included from ../src/s2/s2edge_clipping.ho |  ../src/s2/s2edge_crosser.h :n : 34s 23e x:
t:
 pIn file included from l In file included from C o../src/s2/base/logging.hi../src/s2/s2edge_crossings.h r:dc:i t21R47eAp *C :
:
BoaIn file included from bIn file included from Sn/usr/local/clang/include/absl/log/check.hds../src/s2/s2predicates.hlL:i:t_ino_n37(55uIl:
lc:
oNIn file included from TaIn file included from bn/usr/local/clang/include/absl/log/internal/check_impl.hE/usr/local/clang/include/absl/flags/flag.hls:tR :e21NT42*  :
A:
oaIn file included from LIn file included from lb/usr/local/clang/include/absl/log/internal/check_op.h_/usr/local/clang/include/absl/flags/internal/flag.hds_:rA:Tl41_e30pT:
Rn:
,In file included from Io
n/usr/local/clang/include/absl/base/call_once.h/usr/local/clang/include/absl/log/internal/strip.hB      n:u:U| 52l26lT                                   ^E::
 
_24In file included from oC:A/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.hb jP::warning: )T25753type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
U::

      R23/usr/local/clang/include/absl/types/source_location.h| E::                                 ^D 15052
_:note:  | B40/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nullable'sY:(:
t t241d  warning: h::257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i22: | 
s:a#)d) ,t  oenote:  150mfexpanded from macro 'absl_nonnull'  | ii
  cn e    < u241ia b    |  n s l#_tn   d3u2 _ telf i >l* n ea b  a balb s s e   ll __ N_u ln on ol anb n nnlu   uel
  l l       l     |  _ C\                       ^No
nc
oo      ntnr| nsuo                                                   ^ltl 
cWIn file included from lh
o/usr/local/clang/include/absl/container/internal/common.hs2/s2coords.cca      r::r| d32(18*                     ^ :
:

a9b      In file included from :s| ../src/s2/s2coords.h l                       ^:note: _
108macro 'ABSL_INTERNAL_IF_false' defined heren:

oIn file included from /usr/local/clang/include/absl/base/nullability.hn../src/s2/s2point.h:   n:24132u27: | l:
l22 #fIn file included from :di../src/s2/s2coder.hl e:enote: fexpanded from macro 'absl_nonnull'23_i
:
nnIn file included from   ae/usr/local/clang/include/absl/status/status.h 241m:A | e67B#)d:
eS
LIn file included from f      _/usr/local/clang/include/absl/status/internal/status_internal.hi| I                                       ^:nN
29eT:
 /usr/local/clang/include/absl/base/nullability.hE/usr/local/clang/include/absl/strings/cord.ha:R:b241N979s:A:l22L30_:_:n I onote: Fexpanded from macro 'absl_nonnull'warning: n_
ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nauIn file included from 
  lls2/s2debug.cc241sl:   | e (_18979#idNe:
 | fo_fIn file included from i n s ../src/s2/s2debug.h nnau:l et55l  ia:
b
 s In file included from  s      lf_../src/s2/base/commandlineflags.hn | i:o                      ^e21n 
 d :
 n,uIn file included from   l/usr/local/clang/include/absl/flags/flag.hl .: In file included from  . 42 _s2/s2crossing_edge_query.ccN.:
)C:ooIn file included from  28rn/usr/local/clang/include/absl/flags/internal/flag.h_:
dn:u_lIn file included from lR
43V../src/s2/s2edge_crosser.he      :
A:_p| */usr/local/clang/include/absl/synchronization/mutex.h23A                     ^ ::
R
a896bIn file included from sGl:_../src/s2/s2edge_crossings.hS31n:_:o47_ n:
n
uwarning: In file included from       ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2predicates.h| l
:        ^ 55
r:
  eIn file included from 896p/usr/local/clang/include/absl/flags/flag.h | ,:  42 c:
oenIn file included from In file included from xss2/s2convex_hull_query.cct/usr/local/clang/include/absl/flags/internal/flag.hp: In file included from :l26Cs2/s2edge_clipping.cc30i:
o::
cIn file included from r18/usr/local/clang/include/absl/base/call_once.hi../src/s2/s2convex_hull_query.hd:
:t: zIn file included from U5327C../src/s2/s2edge_clipping.hop::
:nd22aIn file included from 34d:t../src/s2/s2loop.h:
i e:In file included from twarning: S34../src/s2/base/logging.hitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:
:o
oIn file included from 21np../src/s2/mutable_s2shape_index.he:
&   (:In file included from  53c30/usr/local/clang/include/absl/log/check.hs | co:
n: oIn file included from pse37 /usr/local/clang/include/absl/container/btree_map.h t,:

:  In file included from T      67a/usr/local/clang/include/absl/log/internal/check_impl.h*| :
                             ^b: /usr/local/clang/include/absl/container/internal/btree_container.h
s21a:l:
/usr/local/clang/include/absl/base/nullability.hb540s:In file included from :::l/usr/local/clang/include/absl/log/internal/check_op.h_o2413:nno::41cn22 :
ewarning: n:uIn file included from l_lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] /usr/local/clang/include/absl/log/internal/strip.hf 
o:note: lb26  expanded from macro 'absl_nonnull'aj:
)540
gIn file included from 
 | */usr/local/clang/include/absl/log/internal/log_message.h          :241|  a53 |                               ^Ab:
#
Bs/usr/local/clang/include/absl/types/source_location.hdSl:/usr/local/clang/include/absl/base/nullability.heL_165:f_n:241iIoN15:nnT:22enE : uRl warning: aNlAnote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b Lexpanded from macro 'absl_nonnull'
sf_l
lX  (a_  165ign241 | n)o;n |  s
n# de      ruce| tlof                     ^_lnis
to n_e  r/usr/local/clang/include/absl/base/nullability.h_Nca:aohba241rsns:*snl22_ iug:nnal ,oblsnote:  n
lexpanded from macro 'absl_nonnull'in      _
nu| nsol                     ^  enl
241rn  | tu_#N_ldoonlern uf_flilain
sle      se | i                     ^_aIn file included from g
nbs2/s2coords.ccnas:_ml18ie_:
m_nIn file included from p o=../src/s2/s2coords.hln :,n"108 u":
&l;In file included from &l
../src/s2/s2point.h,       : _| 27cN              ^:
oo
nIn file included from nn/usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.hsu::tl24123 l:
:
&22      In file included from ,:| /usr/local/clang/include/absl/status/status.h                       ^:fIn file included from 
note: 67as2/s2debug.ccexpanded from macro 'absl_nonnull':
l:
In file included from s18/usr/local/clang/include/absl/status/internal/status_internal.h  e:
:241,In file included from 29 | 
../src/s2/s2debug.h:
#      :/usr/local/clang/include/absl/strings/cord.hd| 55:e  ^:
982f
In file included from :i../src/s2/base/commandlineflags.h39/usr/local/clang/include/absl/container/internal/btree_container.hn:::e21 511 :
:warning: aIn file included from 52type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b/usr/local/clang/include/absl/flags/flag.h:
s: l42note: _  :
expanded from macro 'ABSL_INTERNAL_X'n982In file included from 
o | /usr/local/clang/include/absl/flags/internal/flag.hn :  n 43511u :
 | l /usr/local/clang/include/absl/synchronization/mutex.h lv:  o922i _:d N48o  :nA  np warning: up etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l n
l d
AT      r  B| e922S                     ^e | L
T _o IIsNntTlaEitRnIn file included from iNes2/s2crossing_edge_query.ccdcA :b(LC28o_o:
oArIn file included from dlT../src/s2/s2edge_crosser.hTR :GRe23puI:
B*aIn file included from U r../src/s2/s2edge_crossings.haTa:bnE47_st:
CleIn file included from eA_../src/s2/s2predicates.hndP:oET55nqU:
RnuIn file included from aEu/usr/local/clang/include/absl/flags/flag.hllD:l(_42 cB:
YtoIn file included from n(r/usr/local/clang/include/absl/flags/internal/flag.hest:eth30, i:
s
C)/usr/local/clang/include/absl/base/call_once.h      o):| n)96                                       ^d:i 
33t :/usr/local/clang/include/absl/base/nullability.hi  :o 241 warning: n: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*22 
 : a  b   note:  s96lexpanded from macro 'absl_nonnull'  | _
  n    u241 fl |  rl# iad eeb fnl eid   n es a ,ta b
d\:s      l
:| _      a                                               ^n| t
o                                                   ^on
/usr/local/clang/include/absl/base/nullability.hmn:/usr/local/clang/include/absl/container/internal/common.hiu257:cl:32<l23:u :9i_ :nN note: tonote: expanded from macro 'absl_nullable'3nmacro 'ABSL_INTERNAL_IF_false' defined here
2n
_u  tl257   >l | 32*
# |        d#a| edb                     ^fes
iflni_enn eoa nbAnsBulSl_Lln_ uIn file included from Ibls2/s2coords.cclNaT:asbE18elR:
_eNIn file included from i A../src/s2/s2coords.hn_L:tN_108euI:
Fr_lfIn file included from anl../src/s2/s2point.hala:bsl27:le:
:e(In file included from iC
../src/s2/s2coder.hfo      :_n| 23st                      ^:
ar
In file included from to/usr/local/clang/include/absl/status/status.hil:sWf67i:
oerIn file included from dd/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from ,(:s2/s2debug.cc 
29:.      :
18.| :
/usr/local/clang/include/absl/strings/cord.h.                                ^In file included from :)
../src/s2/s2debug.h984 ::/usr/local/clang/include/absl/base/nullability.h_5536:_:
:241VIn file included from  :A../src/s2/base/commandlineflags.h22warning: _::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A21 
R:
note: GIn file included from expanded from macro 'absl_nonnull'S/usr/local/clang/include/absl/flags/flag.h  In file included from 
_:984s2/s2edge_clipping.cc_42   | :
:
241 18      In file included from  |  :
| /usr/local/clang/include/absl/flags/internal/flag.h# In file included from         ^:d ../src/s2/s2edge_clipping.h
43ev::
fo34/usr/local/clang/include/absl/synchronization/mutex.hii:
:ndIn file included from 923e ../src/s2/base/logging.h: A:48ap21:bp:
 seIn file included from warning: ln/usr/local/clang/include/absl/log/check.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_d:
nT37or:
n  eIn file included from n923e/usr/local/clang/include/absl/log/internal/check_impl.hu | T:ol 21Tl :
r  In file included from e_ /usr/local/clang/include/absl/log/internal/check_op.heN :(o 41Cn In file included from :
on s2/s2convex_hull_query.cc In file included from ru: /usr/local/clang/include/absl/log/internal/strip.hdl26l :R:

 26eIn file included from        :
p../src/s2/s2convex_hull_query.h*|  /usr/local/clang/include/absl/log/internal/log_message.h:                      ^ :27a
 71:
b : In file included from  s26../src/s2/s2loop.h l:: In file included from _ 34 s2/s2crossing_edge_query.cc n:
warning: : oIn file included from ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28 ../src/s2/mutable_s2shape_index.h n
:
: uIn file included from 30 l   ../src/s2/s2edge_crosser.h:
 l71:In file included from    | 23/usr/local/clang/include/absl/container/btree_map.hct :
 :orIn file included from L67one../src/s2/s2edge_crossings.he:
gs:t,/usr/local/clang/include/absl/container/internal/btree_container.h M47e :CM:
es543soIn file included from nt:ha../src/s2/s2predicates.hgd23io:de:t55I( i:
dcwarning: ooIn file included from epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nn/usr/local/clang/include/absl/flags/flag.hn
ts*: it  42af 543:
bic | In file included from seh a/usr/local/clang/include/absl/flags/internal/flag.hrlr :*_  30  nm:
e au/usr/local/clang/include/absl/base/call_once.ht bl:lh s97lao d:)_b 18;nl :
oe        n  |  warning:  nb                                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] u)

 l;/usr/local/clang/include/absl/base/nullability.h    l
:97        241 | tf| : ri                                               ^22 ul
: e/usr/local/clang/include/absl/base/nullability.he  ):,note:  ;257 expanded from macro 'absl_nonnull' 
:i
o      23nn  | :tc241                      ^  e | 
#note: l_idexpanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/btree_container.hfne
:lef,496  ai
:257gn      9 | *e|  :a#                          ^a bd
bnote: sesfmacro 'ABSL_INTERNAL_X' defined herel/usr/local/clang/include/absl/base/nullability.hli
_:_nn241ne  o:o 496n22na | n:nb#u usdlnote: lle_lexpanded from macro 'absl_nonnull'lf n 
ifu_nN  lleo241al an | gA)bn#B;l
udSe       leLf| _l_iI                 ^NN
n
Tu      eE /usr/local/clang/include/absl/base/nullability.hl| RaN:l                     ^bA241a
sL:bll_22_eX:n
( o      Fnote: n| u                      ^expanded from macro 'absl_nonnull'nnu

In file included from cls2/s2coords.cc  ,l:241  18 | C_:
#aNIn file included from dlo../src/s2/s2coords.heln:nfe108uie:
ln,In file included from  le../src/s2/s2point.hK
 :Q      a27u| b:
a                     ^sIn file included from l
l../src/s2/s2coder.h,_: n23Mo:
In file included from QnIn file included from s2/s2debug.ccun/usr/local/clang/include/absl/status/status.h:au:18ll67:
,l:
In file included from   In file included from ../src/s2/s2debug.hK_/usr/local/clang/include/absl/status/internal/status_internal.h:VN:55ao29:
ln:
In file included from un/usr/local/clang/include/absl/strings/cord.h../src/s2/base/commandlineflags.heu::,l98521 l::
M
30In file included from V      :/usr/local/clang/include/absl/flags/flag.ha|  :l                     ^42warning: u
:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eIn file included from 
,/usr/local/clang/include/absl/flags/internal/flag.h :.43  .:
985. | /usr/local/clang/include/absl/synchronization/mutex.h) :  948  :  10 v: o \iwarning: 
dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]       
| A        ^p
p  e948n | d T rbeoeo(lC o(rIn file included from *ds2/s2edge_clipping.ccRa:be18ps:
l*In file included from _ ../src/s2/s2edge_clipping.hna:ub34ls:
llIn file included from a_../src/s2/base/logging.hbn:lo21en:
n In file included from ue/usr/local/clang/include/absl/log/check.hlv:la37 l:
t_In file included from r)(/usr/local/clang/include/absl/log/internal/check_impl.hec:eo21,n:
 sIn file included from tM /usr/local/clang/include/absl/log/internal/check_op.heC:to41nhd:
oidtIn file included from Iido/usr/local/clang/include/absl/log/internal/strip.hne*: In file included from n26as2/s2crossing_edge_query.cct:
b:i/usr/local/clang/include/absl/log/internal/log_message.hs28lf_:n:
i78oIn file included from e:n../src/s2/s2edge_crosser.hr26n: :u23lml ):
ewarning:  In file included from ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]=../src/s2/s2edge_crossings.hh
 :on47ud   ):
;l78lIn file included from 
 | /usr/local/clang/include/absl/container/internal/btree_container.hp../src/s2/s2predicates.ht      r : :| ;542
L55                             ^:      o:

3| g/usr/local/clang/include/absl/base/nullability.hIn file included from :         ^M:/usr/local/clang/include/absl/flags/flag.h 
e241:warning: s:/usr/local/clang/include/absl/base/nullability.h42passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s22::

a:257In file included from g e:/usr/local/clang/include/absl/flags/internal/flag.h  note: (23:542expanded from macro 'absl_nonnull'c:30 | 
o :
 n/usr/local/clang/include/absl/base/call_once.hs  note:  :t241expanded from macro 'absl_nullable'A111  | 
B:c#Sd40  hLe_:I257af N | riwarning: nT#*dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eeE  a
bfRianbesN  As l111Lla__n | o_bnsvln_Xo(oniunlunindllnlu  sfaillLeebrlto_,ol ew r__ LieNao_nnnvusNstielllC
u glai      lnllanb| l,el
e                     ^ O      ,
in| 
nc                      ^e      s
(| ea                         ^rb
ts_lIn file included from /usr/local/clang/include/absl/base/nullability.ho:s2/s2debug.ccIn file included from :r::os2/s2coords.cc241_18n::a:
sc1822In file included from se:
:../src/s2/s2debug.hi_In file included from  :gf../src/s2/s2coords.h55note: nl::
expanded from macro 'absl_nonnull'_a108gIn file included from 
i:
*../src/s2/base/commandlineflags.h mIn file included from   :ap../src/s2/s2point.h24121bl: | :
s,27#In file included from l :
d/usr/local/clang/include/absl/flags/flag.h_&In file included from &e:fn../src/s2/s2coder.h,42io: :
nn23cIn file included from en:
uo/usr/local/clang/include/absl/flags/internal/flag.h In file included from ln:a/usr/local/clang/include/absl/status/status.hls43tb: :
 s67f/usr/local/clang/include/absl/synchronization/mutex.h&l:
l:,_In file included from a948 n/usr/local/clang/include/absl/status/internal/status_internal.hg:fo:,48an29 :ln:
C su/usr/local/clang/include/absl/strings/cord.hawarning: el:ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],l986 l
a
b:_      l40  N| e:948o  ^&  | n
n&warning:  u l/usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] fl:
bno
509,o        :
l| 98652                            ^ | :| (
                                         ^* 
 note: a expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.hbv
:so241l  i:_509d22n |  :u P l rnote: el expanded from macro 'absl_nonnull'pa b
e l nIn file included from   e ds2/s2edge_clipping.ccT241  : r | e18 e#v:
aAledIn file included from B_Te../src/s2/s2edge_clipping.hS)of:L(Ii34_cnn:
IoleIn file included from Nni ../src/s2/base/logging.hTsna:Ete b21RdCs:
N(olnIn file included from dAC_o/usr/local/clang/include/absl/log/check.hriLn:dt_o37RiAn:
eoTnnIn file included from pT*u /usr/local/clang/include/absl/log/internal/check_impl.ha*Rl:b Il21saBb :
lU_s_In file included from TnloNn/usr/local/clang/include/absl/log/internal/check_op.hE_onn:u_nCo41lnAn:
nluPIn file included from u)l T/usr/local/clang/include/absl/log/internal/strip.hll=U:Rl
 26E       n:
Dt| u/usr/local/clang/include/absl/log/internal/log_message.hl_lr                     ^:Bpe
80Yte:,(
r26t      ;:h| 
 i                                       ^      warning: s
| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])                                               ^
/usr/local/clang/include/absl/base/nullability.h)
:,241    /usr/local/clang/include/absl/base/nullability.h: 80:22  | 241:  :   22Lnote:  :oexpanded from macro 'absl_nonnull'  g
 note: M   expanded from macro 'absl_nonnull'e 241
s  | s  a #241g d | e e#f( dicn eofe ni  sna etb s   la_cn bhso nanl r\u_l*
nl        oa_| nbnN                                                   ^suoln
lln_ n/usr/local/clang/include/absl/container/internal/common.hu_oN:lnlo
32nn      n:u| u                     ^9ll
l:l
        note: f| macro 'ABSL_INTERNAL_IF_false' defined herei                     ^
l
e,    32i | n#tdIn file included from  es2/s2coords.cclf:ii18nn:
eeIn file included from , ../src/s2/s2coords.h
A:      B108SIn file included from | :
Ls2/s2debug.cc                         ^In file included from _:
../src/s2/s2point.hI18:N/usr/local/clang/include/absl/base/nullability.h:
27T:In file included from :
E241../src/s2/s2debug.hIn file included from R::../src/s2/s2coder.hN2255:A::
23L In file included from :
_../src/s2/base/commandlineflags.hnote: In file included from I:expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.hF21
:_:
67  fIn file included from :
241a/usr/local/clang/include/absl/flags/flag.hIn file included from  | l:/usr/local/clang/include/absl/status/internal/status_internal.h#s42:de:
29e(In file included from :
fi/usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/strings/cord.hif::n_43988es:
: a/usr/local/clang/include/absl/synchronization/mutex.h37at::bi951 ssl:warning: f_9type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]in:
eo dnwarning: ,n  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] u988
.l | .l   . 951 )_ |   N   _vov_oonViindAdu*_  lAlaPR
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ueIn file included from In file included from lp../src/s2/s2convex_hull_query.h*s2/s2edge_clipping.cc l:p:ta2718rb:
s:
;In file included from 
lIn file included from ../src/s2/s2loop.h      _../src/s2/s2edge_clipping.h:| n:o34        ^34n:

:
nIn file included from /usr/local/clang/include/absl/base/nullability.hIn file included from u../src/s2/mutable_s2shape_index.h:../src/s2/base/logging.hl:257:l30:21 :
23:
tIn file included from r:In file included from /usr/local/clang/include/absl/container/btree_map.he /usr/local/clang/include/absl/log/check.h:e:,note: 67expanded from macro 'absl_nullable'37 :
M
:
/usr/local/clang/include/absl/container/internal/btree_container.heIn file included from In file included from   :ts2/s2crossing_edge_query.cc/usr/local/clang/include/absl/log/internal/check_impl.h257542h:o:d | :#28d21eI3:
:
fd:In file included from In file included from ie n../src/s2/s2edge_crosser.ht/usr/local/clang/include/absl/log/internal/check_op.hinwarning: ::fepassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 2341i
ea:
:
rbIn file included from sIn file included from    ../src/s2/s2edge_crossings.hl/usr/local/clang/include/absl/log/internal/strip.h542m:_: | e47n26 t:
u:
l lhIn file included from /usr/local/clang/include/absl/log/internal/log_message.hAao../src/s2/s2predicates.h:Bbd:82Sl)55:Le;:
26_ 
In file included from :I_      N/usr/local/clang/include/absl/flags/flag.h N| u:lwarning: T                                    ^42ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
:
a
RIn file included from /usr/local/clang/include/absl/base/nullability.hbN/usr/local/clang/include/absl/flags/internal/flag.h:   lAe:24182L
30: | _      :
22 /usr/local/clang/include/absl/base/call_once.hX| : :(                      ^ L153i
note: o:nexpanded from macro 'absl_nonnull'g41s
M:e  e r241swarning: t | s#adtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e_In file included from g
fos2/s2debug.cceir:_(  cn18ea153so:
  | asnIn file included from  bis../src/s2/s2debug.h sgt:  ln55c _,:
hCn In file included from aaoi../src/s2/base/commandlineflags.hrlnn:s*ln21e Ou:
ranlIn file included from tbcl/usr/local/clang/include/absl/flags/flag.h_se :olI_42r_mN:
_npoIn file included from naol/usr/local/clang/include/absl/flags/internal/flag.hnsn(:usns43liut:
lgld/usr/local/clang/include/absl/synchronization/mutex.h:
nl::      _ 954a| if:t                     ^mi52o
pl:mle i,,warning: c < type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&ui
&in,nt    In file included from tcl954s2/s2coords.cc3oi | : 2nn18e _s:
,sttIn file included from 
t> ../src/s2/s2coords.h      a*& :| t,a108                         ^i b:

cfsIn file included from  a/usr/local/clang/include/absl/base/nullability.hll../src/s2/s2point.h_b:s:no241e27oo:l,:
n22 
In file included from n:C      ../src/s2/s2coder.hu a| :lnote: l  ^23lexpanded from macro 'absl_nonnull'l
:
 
VIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hco/usr/local/clang/include/absl/status/status.h  :oi:241511nd67 | :tP:
#52rtIn file included from d:or/usr/local/clang/include/absl/status/internal/status_internal.he lF:fnote: ,u29iexpanded from macro 'ABSL_INTERNAL_X'
n:
n
      c/usr/local/clang/include/absl/strings/cord.he|   t:                                         ^511i989a
 | o:b n31(/usr/local/clang/include/absl/base/nullability.hs :c:oln s t241_ warning:  :n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C22o 
o:n n n   dnote: u l989iexpanded from macro 'absl_nonnull' l |  t
iA   _oB 241NnS*    | vooLia#bns_ddnelI uPfr_eNlTinplEnoe
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uUel/usr/local/clang/include/absl/base/nullability.hlTpE: *_241_ C:NaA22obP:nsT nlU_note: uRnexpanded from macro 'absl_nonnull'lEo
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            | |                               ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/common.h::24131::229::  note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_true' defined here

In file included from   s2/s2debug.cc241   : | 31#18d | e#f:
diIn file included from en../src/s2/s2debug.hfe:i 55na:
beIn file included from s ../src/s2/base/commandlineflags.hAl:BIn file included from _21nSs2/s2edge_clipping.cc:
oLn:nIn file included from _18u/usr/local/clang/include/absl/flags/flag.hlI:
N:lIn file included from T42 ../src/s2/s2edge_clipping.h_E:
R:NIn file included from o34nNn/usr/local/clang/include/absl/flags/internal/flag.hu:
A:LlIn file included from l43_../src/s2/base/logging.h
:
I:      /usr/local/clang/include/absl/synchronization/mutex.hF21| :_:
                     ^956tIn file included from 
:r/usr/local/clang/include/absl/log/check.h52u::e37( :
iIn file included from warning: f/usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_:
s21a:
tIn file included from   i/usr/local/clang/include/absl/log/internal/check_op.h956s: | f41 i:
 esIn file included from dt/usr/local/clang/include/absl/log/internal/strip.h,a: t26i.c:
. /usr/local/clang/include/absl/log/internal/log_message.hb.o:o)119lIn file included from  : s2/s2coords.cci41C:afs:t18A_ s:
nwarning: daIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Cta../src/s2/s2coords.hl
li:sF108f  u:
i119nIn file included from e | c../src/s2/s2point.htdi o:n
 27(      cL:
o| o        ^nIn file included from g
s../src/s2/s2coder.hMt:e 23sC:
soIn file included from nad/usr/local/clang/include/absl/status/status.hgi:et67i&o :
TIn file included from nIn file included from os2/s2convex_hull_query.ccS*/usr/local/clang/include/absl/status/internal/status_internal.h :aib:26ns29l:
k:
_In file included from A/usr/local/clang/include/absl/strings/cord.hn../src/s2/s2convex_hull_query.holn::sn994u27o:l:
l(30aIn file included from b :c../src/s2/s2loop.hs ):;lwarning: 34
:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
      :
In file included from | L../src/s2/mutable_s2shape_index.h                                                   ^o:  
g30994S:
/usr/local/clang/include/absl/base/nullability.h | iIn file included from n: /usr/local/clang/include/absl/container/btree_map.hk241* : :  6722va:
b:o/usr/local/clang/include/absl/container/internal/btree_container.hs i:lnote: d542 _expanded from macro 'absl_nonnull':Cn
o3onp:y  Tn 241ou | warning: (ls#t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ldd
: e:fsisin  etnr542i ka | n)b g;*s l _
aAbn      oBnsn| S                                        ^Llu
l__Il/usr/local/clang/include/absl/base/nullability.h nNo:n_TN241nEuol:lR n22Ndn:Asut )L lnote: l_cexpanded from macro 'absl_nonnull'o
X
n      s(|                        ^ti 241
n{ | s
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oirn/usr/local/clang/include/absl/base/nullability.h_e:a 241sa:sb22In file included from is:s2/s2debug.ccgl :n_18note: ,n :
expanded from macro 'absl_nonnull'oiIn file included from n
n../src/s2/s2debug.hsn:  eu55l241r:
l | tIn file included from  #_d../src/s2/base/commandlineflags.he_foi:nNr21eo_n:
n aaIn file included from busl/usr/local/clang/include/absl/flags/flag.hlss:i
l42g      _:
nn| In file included from In file included from o_                     ^is2/s2crossing_edge_query.cc/usr/local/clang/include/absl/flags/internal/flag.hn
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:
l,In file included from /usr/local/clang/include/absl/synchronization/mutex.hl ../src/s2/s2edge_crosser.h: &_:N958o&n23n:,:
u50 In file included from lIn file included from :c../src/s2/s2edge_crossings.hls2/s2edge_clipping.cc o:
:warning: n47      18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:
| :

tIn file included from                      ^In file included from  ../src/s2/s2predicates.h
../src/s2/s2edge_clipping.h  &::958,5534 |  :
:
 fIn file included from aIn file included from  /usr/local/clang/include/absl/flags/flag.hl../src/s2/base/logging.hs:s:t42e21a:
,:
tIn file included from 
In file included from In file included from i/usr/local/clang/include/absl/flags/internal/flag.h      s2/s2coords.cc/usr/local/clang/include/absl/log/check.hc:| :: 30  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~1837b:

:
:
o/usr/local/clang/include/absl/base/call_once.hIn file included from In file included from   o:l../src/s2/s2coords.h/usr/local/clang/include/absl/log/internal/check_impl.h543194 :: | :C10821 31a:
:
 :sIn file included from In file included from   t../src/s2/s2point.hA/usr/local/clang/include/absl/log/internal/check_op.h warning: :n: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27d41 
:
C:
a lIn file included from lIn file included from M   ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/strip.he194 ::t |  2326hi n:
:
o l In file included from /usr/local/clang/include/absl/log/internal/log_message.hdi n/usr/local/clang/include/absl/status/status.h:( ceo:n121  67s: s:
t41  CtodIn file included from ::tn/usr/local/clang/include/absl/status/internal/status_internal.h: rd:awarning: ui29ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]et:
io
m)/usr/local/clang/include/absl/strings/cord.h;oi:
  nc999<      121*:u|  |  28i                  ~~~~~n a:b
t  Ls/usr/local/clang/include/absl/container/internal/btree_container.hl3warning: o:_2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_g511Mn
ot:>en47  *sn:u999 s l | aanote: l  bcg)expanded from macro 'ABSL_INTERNAL_X'; s e 

l&v      _ oT  | niod511                                                 ^oS i | n
knC/usr/local/clang/include/absl/base/nullability.ho Onn:p u l241yl ly:T o (C22 Aaro: brsnl : atynote: : Lro(expanded from macro 'absl_nonnull'c oAg
ShlBiS  LaWno241r_drk* | I#(d* Na
e Tab      fEbRs| isnNl                              ^_leA
Ln_onn _a/usr/local/clang/include/absl/base/nullability.hbosnAu:nlT_l241nTnlo:uR n22lIdBsnt:)lU us i TcElnote: lno_expanded from macro 'absl_nonnull' k_nCs
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R241n|       E | n                                        ^u| D                           ^#
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d/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.hB      e::Y| f241i241(                     ^:n:t
h22e22i: :s )a) note: b)note: expanded from macro 'absl_nonnull's expanded from macro 'absl_nonnull'
l 
_   nIn file included from 241   os2/s2debug.ccn | 241 :n# |  18ud# :
led In file included from lfe f../src/s2/s2debug.h i ni:_ e n55N  ae:
o b   In file included from nsa b../src/s2/base/commandlineflags.hnl s:u_ nl21l o_:
l n nIn file included from 
n o/usr/local/clang/include/absl/flags/flag.h      u n\:| ln
u42                     ^l      l:

 | lIn file included from _                                              ^~~~ /usr/local/clang/include/absl/flags/internal/flag.hN
_:oN43In file included from no:
s2/s2crossing_edge_query.ccnn/usr/local/clang/include/absl/synchronization/mutex.h:un:28lu961:
ll:In file included from 
l34../src/s2/s2edge_crosser.h      
::|        23                     ^| :
warning: 
                     ^In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/s2edge_crossings.h
:47:
In file included from   ../src/s2/s2predicates.h961: | 55 :
 In file included from s/usr/local/clang/include/absl/flags/flag.ht:a42t:
iIn file included from c/usr/local/clang/include/absl/flags/internal/flag.h :b30o:
o/usr/local/clang/include/absl/base/call_once.hl: 195C:a16l:l Bwarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ef  (195c | In file included from o s2/s2coords.ccn : s18 t:
o In file included from nT../src/s2/s2coords.hc*:e 108a_b:
fsIn file included from ll../src/s2/s2point.ha_:gn27*o:
n In file included from nau../src/s2/s2coder.hbl:s23ll:
 _In file included from sn/usr/local/clang/include/absl/status/status.heo:ln67fn:
)uIn file included from  l/usr/local/clang/include/absl/status/internal/status_internal.h{l:
 29/usr/local/clang/include/absl/container/internal/btree_container.h      f:
:| l/usr/local/clang/include/absl/strings/cord.h545                                 ^a::
g101224/usr/local/clang/include/absl/base/nullability.h)::: 37 241{::warning: 
 22passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      :warning: 
| In file included from  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]               ^  s2/s2edge_clipping.ccnote: 

545:expanded from macro 'absl_nonnull' | 18/usr/local/clang/include/absl/base/nullability.h
  :
:1012   In file included from 241 | 241 ../src/s2/s2edge_clipping.h:  |  #:d22e  34:f   :
a i nIn file included from ebnote:  ../src/s2/base/logging.h sexpanded from macro 'absl_nonnull'l :a
b: :21cso   :
lr241 In file included from _d |  /usr/local/clang/include/absl/log/check.hn_#i n:odn nt37ee fu:
lr niIn file included from nl  a/usr/local/clang/include/absl/log/internal/check_impl.hlef _:N:oanan21u:lb:
slCls
In file included from loe      )/usr/local/clang/include/absl/log/internal/check_op.h_r| d;z:Inn                     ^f
41o
o      :
n*|  In file included from an                       ^u/usr/local/clang/include/absl/log/internal/strip.hb
sl:ll/usr/local/clang/include/absl/container/internal/btree_container.h_26 :_n:
496Nu:l/usr/local/clang/include/absl/log/internal/log_message.ho9l:n:a158n b:lunote: 32elmacro 'ABSL_INTERNAL_X' defined here: l

 c      warning: o|                        ^In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r496d
zs2/s2debug.cc_
 | :i#nd18  fe:
158ofIn file included from  | (i../src/s2/s2debug.h )n:  e55Lc o:
oAnIn file included from gBs../src/s2/base/commandlineflags.hMSt:eL 21s_{:

sIIn file included from       aN/usr/local/clang/include/absl/flags/flag.h| gT:                                    ^eE42
&R:
 N/usr/local/clang/include/absl/base/nullability.hIn file included from oA:/usr/local/clang/include/absl/flags/internal/flag.hpL257:e_:43rX23:
a(:/usr/local/clang/include/absl/synchronization/mutex.htF :ou975note: rn:expanded from macro 'absl_nullable'<c31
<,:  In file included from (  257s2/s2crossing_edge_query.ccvC | warning: :oa#type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28ild
:
dleIn file included from *ef  i../src/s2/s2edge_crosser.h e975n:a, | e23b   :
sK aIn file included from blQi../src/s2/s2edge_crossings.hs_un:lnal47_uli:
nl,nIn file included from ul e../src/s2/s2predicates.hlaM :lbQv55aluo:
bea iIn file included from lle dv/usr/local/clang/include/absl/flags/flag.h,  )R: _ e42KN{a:
Vu
dIn file included from al      C/usr/local/clang/include/absl/flags/internal/flag.hll| a:ua                               ^l30eb
ll:
,eb/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/call_once.h 
a::M      c257200V| k:(:a                      ^23T40l
:*:u   enote: ,awarning: expanded from macro 'absl_nullable' btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
.
l.  _.257n)   | o n200#In file included from  n | ds2/s2coords.cc uve: lof18 lii:
\ dnIn file included from 
c eL../src/s2/s2coords.h      a oa:| lwb108        ^lLs:

belIn file included from av_../src/s2/s2point.hcen:klu27)Cl:
 alIn file included from acl../src/s2/s2coder.hbol:lnO23esn:
 tcIn file included from _ e/usr/local/clang/include/absl/status/status.h(N{:au
67bl      :
sl| In file included from la                              ^/usr/local/clang/include/absl/status/internal/status_internal.h:b
::l29e/usr/local/clang/include/absl/base/nullability.ho:

:n/usr/local/clang/include/absl/strings/cord.h      241c:| :e1017                      ^22_:
:f51 l:note: a expanded from macro 'absl_nonnull'g
warning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
241a | b#s dl1017e_ | fn io nn enIn file included from   us2/s2edge_clipping.ccvalb:ols18li d:
 _fIn file included from snl../src/s2/s2edge_clipping.heoa:tng34_n,u:
c lIn file included from oCl../src/s2/base/logging.h ra:l_d21lNz:
ao_In file included from ibn/usr/local/clang/include/absl/log/check.hnnl/usr/local/clang/include/absl/container/internal/btree_container.h:ufe:&37&lo544(:
 l:
cIn file included from f3      o/usr/local/clang/include/absl/log/internal/check_impl.hn:,| r: 
                     ^d21      warning: 
_:
| passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]iIn file included from                                        ^
n/usr/local/clang/include/absl/log/internal/check_op.h
t:e41  /usr/local/clang/include/absl/base/nullability.hr:
544:nIn file included from  | 241a/usr/local/clang/include/absl/log/internal/strip.h :l: 22:26A:::
B CIn file included from /usr/local/clang/include/absl/log/internal/log_message.hSnote: os2/s2debug.cc:Lexpanded from macro 'absl_nonnull'r:d161_
18z:I:
I  38NIn file included from n241:T../src/s2/s2debug.hf |  E:Ro#*warning: 55Nd type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
Aea
In file included from Lfb../src/s2/base/commandlineflags.h_is  :Xnl16121(e_ | :
i n oIn file included from nnas /usr/local/clang/include/absl/flags/flag.hnbesL:urllo42tl_g:
_ nMIn file included from ocoe/usr/local/clang/include/absl/flags/internal/flag.hrons:_rns43adua:
szlg/usr/local/clang/include/absl/synchronization/mutex.hs_le:ii &979gn_ :nfNo43,oop: )ne i nrwarning: n{uatype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
lt
e      lor|   
rt                                                  ^979      <_
 | | </usr/local/clang/include/absl/base/nullability.ho                      ^ (:r
sc241o_t:anas22tst:is i cvgonote:  niexpanded from macro 'absl_nonnull'b_d
oi*o   mla241p bA | lsl#,dlw ae_f&iyn&uns,Tlreu el( caacoobbsnlnlse_stt n o  C&nvo,nn)  dut{ilrl
tui       eo_| ,nN                                     ^
*o
n       n| /usr/local/clang/include/absl/base/nullability.h  ^au:
bl257sl:
/usr/local/clang/include/absl/container/internal/btree_container.hl23      :_:| 509n                      ^:u
note: 52lexpanded from macro 'absl_nullable':l
 anote: b  expanded from macro 'ABSL_INTERNAL_X'l257
e | )# d{  e 509fr | ie nt eu  r an b  st lr _u ne u;Al Bl}Sa
Lb      _l| Ie                                          ^N 
T_EN/usr/local/clang/include/absl/base/nullability.hRu:Nl257Al:La23_b:Al Tenote: T
expanded from macro 'absl_nullable'R      
I| B                      ^  U
257T | E#_dCeAfPiTnUeR EaDb_sBlY_(ntuhlilsa)b)l,e   _ N u l l a b l e 
        |                        ^ 
    In file included from  s2/s2coords.cc : 18 :
 In file included from \../src/s2/s2coords.h
:      108| :
                                                   ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s2coder.h::923::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:   2931:
 | /usr/local/clang/include/absl/strings/cord.h#:d1049e:f56i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL_ I1049N | T E RsNtAaLt_iIcF _btorIn file included from ous2/s2edge_clipping.ccel:( 18iG:
efIn file included from t_F../src/s2/s2edge_clipping.hsl:aa34ttA:
uiIn file included from xs../src/s2/base/logging.hf(:ia21bes:
ldIn file included from ,:/usr/local/clang/include/absl/log/check.h: :c.o37r.:
d.In file included from _)/usr/local/clang/include/absl/log/internal/check_impl.hi n:it21fe:
_rIn file included from sn/usr/local/clang/include/absl/log/internal/check_op.haa:tl41:i::
sCIn file included from of/usr/local/clang/include/absl/log/internal/strip.hrid:eR26de:

p      /usr/local/clang/include/absl/log/internal/log_message.h*| :        ^ 179
a:b35s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l179l |   r eIn file included from Lps2/s2convex_hull_query.cco,:g
26M      :
e| In file included from s                                                       ^s../src/s2/s2convex_hull_query.h
a:g27/usr/local/clang/include/absl/base/nullability.he:
:&In file included from 241 ../src/s2/s2loop.h:o:p2234e::
r In file included from a../src/s2/mutable_s2shape_index.hnote: t:expanded from macro 'absl_nonnull'o30r
:
<In file included from   </usr/local/clang/include/absl/container/btree_map.h241(: | w67#c:
dh/usr/local/clang/include/absl/container/internal/btree_container.hea:fr544_i:tn3*e:   aaIn file included from warning: bbs2/s2debug.cc'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ss:
ll18__:
nnIn file included from o  u../src/s2/s2debug.hn544l:n | l55au l:
b lleIn file included from A  ../src/s2/base/commandlineflags.hB_vN:oSn)21Ln;u:
_
lIn file included from I      l/usr/local/clang/include/absl/flags/flag.hN| 
                                  ^:T      
42E| :
R                     ^/usr/local/clang/include/absl/base/nullability.hIn file included from N
:/usr/local/clang/include/absl/flags/internal/flag.hA257:L:43_23:
X:(/usr/local/clang/include/absl/synchronization/mutex.h i:note: n1033expanded from macro 'absl_nullable'sIn file included from :
es2/s2coords.cc20  r::257t18  | _:
owarning: #In file included from rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d../src/s2/s2coords.h_
e:af108 si:
n1033sIn file included from e | i../src/s2/s2point.hg  : na,27 vbo:
iisnIn file included from sdl ../src/s2/s2coder.he_W:arnt23iu_:
tlolIn file included from a(rM/usr/local/clang/include/absl/status/status.hub_l:taes67se x:
i_*In file included from  gaNb/usr/local/clang/include/absl/status/internal/status_internal.hnus:l_li29_lma:
npbl/usr/local/clang/include/absl/strings/cord.h,oln:n e1050u&
&:l      ,45l|                        ^ :m
uc )owarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{s

t       |                     ^&1050
, |   /usr/local/clang/include/absl/base/nullability.h t:r 241u :e 22, :
         | note:    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull' 
 
    545    |  241   |   #  d e  f   i n e     a bIn file included from  a s s2/s2edge_clipping.ccbls_ n:l : :os18 ntnr:
i uIn file included from n l../src/s2/s2edge_clipping.hlgf_:v a34i_lN:
oeswIn file included from *nen../src/s2/base/logging.hu )a:l;l

b21s            :
l| _| In file included from                      ^                  ~~~~~~n/usr/local/clang/include/absl/log/check.h

o:n37n:
/usr/local/clang/include/absl/container/internal/btree_container.huIn file included from l:/usr/local/clang/include/absl/log/internal/check_impl.hl509 ::f2147r:
:aIn file included from g m/usr/local/clang/include/absl/log/internal/check_op.hnote: e:expanded from macro 'ABSL_INTERNAL_X'n41
t:
)In file included from ;/usr/local/clang/include/absl/log/internal/strip.hIn file included from   
:s2/s2debug.cc509      26: | | :
                                            ^18 
/usr/local/clang/include/absl/log/internal/log_message.h:
 /usr/local/clang/include/absl/base/nullability.h:In file included from  :190../src/s2/s2debug.h 241:: :4255 22::
 : In file included from   ../src/s2/base/commandlineflags.hwarning:  :note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 21expanded from macro 'absl_nonnull'
A:
B
In file included from S  /usr/local/clang/include/absl/flags/flag.h  L190:241_ | 42 | I N:
T# In file included from LEoRgd/usr/local/clang/include/absl/flags/internal/flag.hNMee:sAf43sLaig:
_nee&/usr/local/clang/include/absl/synchronization/mutex.h A :aoTp1050ebTs:lrRa31_Into:nBoU TnEr_<Cwarning: Au<ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lP(
s Tt_UdR N:E:1050oDnon | u_sB ltlY
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li (sW*)aa)b,si lt _W i t hn To ni nmue oIn file included from l us2/s2coords.ccl t : ( M 18mu t:
e)x(* In file included from  s ../src/s2/s2coords.h ta: db:108: o s:
s tlIn file included from  r_e../src/s2/s2point.ha mn&: \o
27on      n:
s| uIn file included from l)l                                              ^~~~ ../src/s2/s2coder.h)
;m:
u23      ,:
|                                           ^/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from a
b:/usr/local/clang/include/absl/status/status.hs544/usr/local/clang/include/absl/base/nullability.h:l:::673:241:
:D:uIn file included from r a22/usr/local/clang/include/absl/status/internal/status_internal.hwarning: t::passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i 29
o:
nnote: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h :
:t511  1054i:m241:52e | o37:#u: dt )note: ewarning:  expanded from macro 'ABSL_INTERNAL_X'{ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i


n      e|                                 ^  511
a1054 | b | /usr/local/clang/include/absl/base/nullability.h  s:l   241_  :n  22 oan :bn u s l note: ll  expanded from macro 'absl_nonnull': _
:AN  cBoS241onrL | n#dd_u_eIfliiNln
enTt       Ee| aRbrs                     ^Nnl
_AanLlo_:nAn:TuCTloRlrI dB_RNeUpoTnE*n u_alCbAlsP
Tl      U_| nIn file included from R                     ^os2/s2edge_clipping.ccE
n:Dn18u_l:
lB YIn file included from r(e../src/s2/s2edge_clipping.htp:h,34i
:
s      )In file included from | )../src/s2/base/logging.h                                    ^):
 21 :
/usr/local/clang/include/absl/base/nullability.h In file included from : /usr/local/clang/include/absl/log/check.h241In file included from  ::s2/s2debug.cc 3722: :
:18 In file included from  :
 /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from note:  :../src/s2/s2debug.hexpanded from macro 'absl_nonnull' 21:
 :
55   In file included from :
241 /usr/local/clang/include/absl/log/internal/check_op.hIn file included from  |  :../src/s2/base/commandlineflags.h# d41e: :
f21 In file included from i:
 /usr/local/clang/include/absl/log/internal/strip.hnIn file included from e :/usr/local/clang/include/absl/flags/flag.h  26:a b:
s42l /usr/local/clang/include/absl/log/internal/log_message.h :
_:\In file included from n191
/usr/local/clang/include/absl/flags/internal/flag.ho:n      :43n| 43:u                                                   ^:
 l
l/usr/local/clang/include/absl/synchronization/mutex.h warning: _:/usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N1069:
o:32n32:n:u  9 l191:warning: l |  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 note: 
       macro 'ABSL_INTERNAL_IF_false' defined here| L
                     ^ o
1069   g | 32M  |  e#bsdoseoaflgi eWn&aei  toWApiBteShrDLae_atdIloiNrTn<eE(<MIn file included from R(usts2/s2coords.ccNte:xAd18*L ::
:_aIn file included from biIo../src/s2/s2coords.hssF:__l108fb_:
naaIn file included from soln../src/s2/s2point.hes&en:u ((27li*:
lfa_In file included from s bm../src/s2/s2coder.hua,s:lt i23_asb:
nfsiIn file included from ole:/usr/local/clang/include/absl/status/status.h:ndn:T,u 67il.l:
m.e  In file included from d.m)/usr/local/clang/include/absl/status/internal/status_internal.he)a(d l:s_i29t_n:
edV:/usr/local/clang/include/absl/strings/cord.h)A:_: iAo1061{RsG:
_S34      b_:_| a                               ^s 

e      warning: &| /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]         ^:
o
241s: )221061): | ;  
note:        expanded from macro 'absl_nonnull'v| 
o                                          ^i
  d241 /usr/local/clang/include/absl/base/nullability.h | C:#o241dpey:fTi22no:eA  rnote: raexpanded from macro 'absl_nonnull'basy
lS_ln  oo241wnP | an#utldlhe(fc hi_anNre*o n anabbussllll_
_nno      on| n                     ^nn
uullll  _dNsotn)n ucloln
s      t| ;                     ^

      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2debug.ccexpanded from macro 'absl_nonnull':
18In file included from :
  s2/s2convex_hull_query.ccIn file included from 241:../src/s2/s2debug.h | 26:#:
55dIn file included from e:
f../src/s2/s2convex_hull_query.hIn file included from i:../src/s2/base/commandlineflags.hn27e: :
21aIn file included from :
b../src/s2/s2loop.hIn file included from s:l/usr/local/clang/include/absl/flags/flag.h_34n:o:
n42nIn file included from :
u../src/s2/mutable_s2shape_index.hIn file included from l:/usr/local/clang/include/absl/flags/internal/flag.hl30: :
43_In file included from :
N/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/synchronization/mutex.ho::n671088n:
:u35l/usr/local/clang/include/absl/container/internal/btree_container.hl:
:       547| warning:                      ^:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
23
: warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]1088
 |     v547o | i d   E n a b l e D e b u g L o g ( ctornuset) ;c
h      a| r                      ^*
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s496l:_9n:u lnote: lmacro 'ABSL_INTERNAL_X' defined herea
ble   496n | a#mdee)f;i
n      e|                                    ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_257I:N23T:E Rnote: Nexpanded from macro 'absl_nullable'A
L_  X257( | F#udnecf,i nCea lalbesel,_ nKuQlulaalbIn file included from ,ls2/s2coords.cc e:M 18_Q:
NuIn file included from aull../src/s2/s2coords.hl,a :bKl108Ve:
a
In file included from l      ../src/s2/s2point.hu| :e                      ^27,
:
 In file included from M../src/s2/s2coder.hV:a23l:
uIn file included from e/usr/local/clang/include/absl/status/status.h,: 67.:
.In file included from ./usr/local/clang/include/absl/status/internal/status_internal.h): 29 :
In file included from  /usr/local/clang/include/absl/strings/cord.hs2/s2debug.cc :: 107818\:
:
33      In file included from :| ../src/s2/s2debug.h         ^:
warning: 55type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/commandlineflags.h:21:
 In file included from 1078/usr/local/clang/include/absl/flags/flag.h | : 42 :
aIn file included from b/usr/local/clang/include/absl/flags/internal/flag.hs:l43::
:/usr/local/clang/include/absl/synchronization/mutex.hc:o1091r:d26_:i nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rna l1091: | : C obrodoRle pW*a iatbCsolm_mnoonn(nMuultle xT*a kaebRselp_(n)o ncnounlslt &m;u
t      e| x                                ^,

      | /usr/local/clang/include/absl/base/nullability.h                         ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idnee/usr/local/clang/include/absl/container/internal/btree_container.hf i:an546eb:s 3al:b_ nswarning: olpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_n
nnuoln  ln In file included from 546u_s2/s2edge_clipping.cc | lN:o nln18u l l:
A_
NIn file included from B      o../src/s2/s2edge_clipping.hS| n                     ^n:L
u34l_:
IlIn file included from 
N../src/s2/base/logging.h      T:E| 21                     ^R:

NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37X:
(In file included from iIn file included from /usr/local/clang/include/absl/log/internal/check_impl.hns2/s2coords.cc:s:21e18:
r:
In file included from tIn file included from /usr/local/clang/include/absl/log/internal/check_op.h_../src/s2/s2coords.h:o:41r108:
_:
In file included from aIn file included from /usr/local/clang/include/absl/log/internal/strip.hIn file included from s../src/s2/s2point.h:s2/s2debug.ccs:26:i27:
18g:
:
/usr/local/clang/include/absl/log/internal/log_message.hnIn file included from In file included from :,../src/s2/s2coder.h../src/s2/s2debug.h306 :::i23553n:
:
:sIn file included from In file included from  e/usr/local/clang/include/absl/status/status.hr../src/s2/base/commandlineflags.hwarning: :t:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67_21
:
o:
In file included from rIn file included from /usr/local/clang/include/absl/status/internal/status_internal.h  _/usr/local/clang/include/absl/flags/flag.h:306a:29 | s42:
 s:
/usr/local/clang/include/absl/strings/cord.h iaIn file included from :gb/usr/local/clang/include/absl/flags/internal/flag.h1079ns::_l43_33i:
n:m/usr/local/clang/include/absl/synchronization/mutex.ho p:nwarning: nl1093type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u,:
l 46l& &: 1079, s |   warning: tcd :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:oa
unnbsi qstl1093u e: | &_:pc , tvo rrd<oti_dL riuoeRnetge,mMor
nev      easl| :(:s  ^abC
ogared/usr/local/clang/include/absl/container/internal/btree_container.hsDeR_:iane509pt*t:a e52r>a:bnsa l :ld_note: n:aexpanded from macro 'ABSL_INTERNAL_X'toP
eanr_Tn  u;h
509lr      e | l |  a    ^Td S
ya n/usr/local/clang/include/absl/base/nullability.hck e:Rh 241e*  :ap (22)b s:l A&B S_&nnote: oLn;nexpanded from macro 'absl_nonnull'u_
I
l      N  Tl| 241E                                 ^s | R#
d)N;e
/usr/local/clang/include/absl/base/nullability.hAf      :Li| 241_n                                             ^e:A
 22Ta:/usr/local/clang/include/absl/base/nullability.hTb s:Rnote: l241_Iexpanded from macro 'absl_nonnull':nB
22oU:T  n E241nnote: _expanded from macro 'absl_nonnull' | uCl
#AlPd   TeU241_fRi | N#Enoed Dane_bBnYf(sulitnlel_
h naob      sin| lsn                     ^u_)
)ln,lo  _n Nn uo ln ln  u_ lN ol n
 n       u | l                      ^l 

        |                       ^ 
      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2coords.cc::6718:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2coords.h::546108::
3In file included from :../src/s2/s2point.h :27warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:  67546:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :A29B:
S/usr/local/clang/include/absl/strings/cord.hL:_1116I:N37T:E Rwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
L_X( i1116n | s e rcto_nosrt_ acsrsci_ginn,t eirnnsaelr:t:_Corrc_CaosrsdiSgtna_tiem*p la,b s&l&_,n uclolnasbtl eIn file included from & s2/s2debug.cc,M: a18ty:
rbIn file included from euG../src/s2/s2debug.hee:,t55C
:
r      In file included from c| ../src/s2/base/commandlineflags.hC  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o:r
21d:
  SIn file included from t547/usr/local/clang/include/absl/flags/flag.ha | t: e42 (:
 )In file included from   /usr/local/clang/include/absl/flags/internal/flag.h c: o43 n:
 s/usr/local/clang/include/absl/synchronization/mutex.h t: ;1109 
:       34 | :                                     ^  
warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] /usr/local/clang/include/absl/base/nullability.h
 :t257r: u231109e: | )  ;note:  
eexpanded from macro 'absl_nullable'      x
| p                  ~~~~~l  
i257c | i#t/usr/local/clang/include/absl/container/internal/btree_container.hd :eM509fu:it47ne:ex L note: oaexpanded from macro 'ABSL_INTERNAL_X'cbk
sMla_y  nb509ue | l( lM au tb e lx e*    _aN bu slAllB_aSnbLul_lIleNa
bTl      Ee| R                       ^Nm
AuL)_
A      T| T                                 ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T257E:_23C:A Pnote: Texpanded from macro 'absl_nullable'U
RE  D257_ | B#YdIn file included from (es2/s2coords.cctf:hi18nie:
s In file included from a)b../src/s2/s2coords.h)s:,l108 _:
 nIn file included from  u../src/s2/s2point.h l: l27a b :
l In file included from e   ../src/s2/s2coder.h_ N: u23 l:
 lIn file included from  a/usr/local/clang/include/absl/status/status.h b: l67 e:
 
In file included from        /usr/local/clang/include/absl/status/internal/status_internal.h | :                       ^ 29
 :
\/usr/local/clang/include/absl/strings/cord.h
:      1120| :                                              ^~~~30
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h :1120546 | : 3 :v owarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
 /usr/local/clang/include/absl/container/internal/btree_container.hC:o511p:y52In file included from T:os2/s2debug.cc A:note: r18expanded from macro 'ABSL_INTERNAL_X'r:
a
yIn file included from I../src/s2/s2debug.hm:  p55511l:
 | (In file included from  c../src/s2/base/commandlineflags.h h: a21r :
* In file included from   a/usr/local/clang/include/absl/flags/flag.h b: s42 l:
 _In file included from nAo/usr/local/clang/include/absl/flags/internal/flag.hBn:Sn43Lu:
_l/usr/local/clang/include/absl/synchronization/mutex.hIl:N 1117Tds:Et34R):N  Acwarning: Lotype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_n
AsTtT; R
1117I       | B|  U                             ^ T
eEx_/usr/local/clang/include/absl/base/nullability.hpCl:Ai241Pc:Ti22Ut:R  EMnote: Duexpanded from macro 'absl_nonnull'_t
BeYx  (L241to | hc#ikdsMe)af)yi)bn ee (  Ma ub ts el x_ *n  o an bn su ll _l n  u_ lN lo an bn lu el  l m
\u      
,|                             ^c| 
o                                                   ^n
st/usr/local/clang/include/absl/container/internal/common.h :C31o:n9d:i tnote: imacro 'ABSL_INTERNAL_IF_true' defined hereo
n&    c31o | n#dd)e
f      i| n                                 ^e
 A/usr/local/clang/include/absl/base/nullability.hB:S257L:_23I:N Tnote: Eexpanded from macro 'absl_nullable'R
NA  L257_ | I#Fd_etfriunee( iafb_ssla_tniuslfliaebdl,e  ._.N.u)l liafb_lsea
t      i| s                      ^f
ied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2debug.cc546: | 18 :
 In file included from A../src/s2/s2debug.hB:S55L:
_In file included from I../src/s2/base/commandlineflags.hN:T21E:
RIn file included from N/usr/local/clang/include/absl/flags/flag.hA:L42_:
XIn file included from (/usr/local/clang/include/absl/flags/internal/flag.hi:n43s:
e/usr/local/clang/include/absl/synchronization/mutex.hr:t1132_:o10r:_ awarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
ign ,1132  | i n sMeurtte_xo*r _aabsssli_gnnu_lilmapbll,e  &c&o,n scto nmsut_ ;&
,       | t         ^r
ue/usr/local/clang/include/absl/base/nullability.h,:
257      :| 23  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 note:   expanded from macro 'absl_nullable'547
 |     257  |  # d e f i n e   a b s l _ n utlrluaeb)l;e
       _| N                  ~~~~~u
lla/usr/local/clang/include/absl/container/internal/btree_container.hb:l511e:
47      :|                        ^note: 
expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 | In file included from  s2/s2debug.cc : 18 :
 In file included from  ../src/s2/s2debug.h : 55 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42f:
aIn file included from l/usr/local/clang/include/absl/flags/internal/flag.hs:e43):
;/usr/local/clang/include/absl/synchronization/mutex.h
:      1146| :                       ^7
: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :496'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
9: note:  macro 'ABSL_INTERNAL_X' defined here1146
 |      496  |  # dtehfiisn)e)  AABBSSLL__IENXTCELRUNSAILV_EX_(LFOuCnKc_,F UCNaClTlIeOeN,( mKuQ)u
a      l| ,      ^~~~ 
MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_IIn file included from Ns2/s2debug.ccT:E18R:
NIn file included from A../src/s2/s2debug.hL:_55X:
(In file included from i../src/s2/base/commandlineflags.hn:s21e:
rIn file included from t/usr/local/clang/include/absl/flags/flag.h_:o42r:
_In file included from a/usr/local/clang/include/absl/flags/internal/flag.hs:s43i:
g/usr/local/clang/include/absl/synchronization/mutex.hn:,1158 :i53n:s ewarning: r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
_or_ a1158s | s i g n _ i mMpult,e x&&& ,m u& &A,B SfLa_lIsNeT,E
R      N| A  ^L
_A/usr/local/clang/include/absl/container/internal/btree_container.hT:T509R:I52B:U Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'_
CAP  T509U | R E D _ B Y ( t h i sA)B,S
L      _| I                                                    ^~~~N
TERNAL_ATTRIBUTE_CAPTURED_BY(this)),/usr/local/clang/include/absl/synchronization/mutex.h : 1166 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1166  |      e x p l i c i\t
       R| e                                                   ^l
ea/usr/local/clang/include/absl/container/internal/common.hs:a32b:l9e:M unote: tmacro 'ABSL_INTERNAL_IF_false' defined heree
xLo   c32k | (#Mduetfeixn*e  aAbBsSlL__nIoNnTnEuRlNlA Lm_uI,F _cfoanlsste (Ciofn_dsiattiiosnf&i ecdo,n d.).
.      )|                                        ^_
_VA/usr/local/clang/include/absl/base/nullability.h_:A241R:G22S:_ _note: 
expanded from macro 'absl_nonnull'      
|         ^
  241 | #define In file included from as2/s2convex_hull_query.ccb:s26l:
_In file included from n../src/s2/s2convex_hull_query.ho:n27n:
uIn file included from l../src/s2/s2loop.hl: 34_:
NIn file included from o../src/s2/mutable_s2shape_index.hn:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                     ^/usr/local/clang/include/absl/container/internal/btree_container.h
:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_oIn file included from rs2/s2debug.cc_:a18s:
sIn file included from i../src/s2/s2debug.hg:n55_:
iIn file included from m../src/s2/base/commandlineflags.hp:l21,:
 In file included from &/usr/local/clang/include/absl/flags/flag.h&:,42 :
&In file included from &/usr/local/clang/include/absl/flags/internal/flag.h,: 43f:
a/usr/local/clang/include/absl/synchronization/mutex.hl:s1179e:,10
:       | warning:   ^
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:511 :117952 | :   note: Mexpanded from macro 'ABSL_INTERNAL_X'u
tex  *511  | a b s l _ n u l l a bAlBeS Lm_uI_N;T
E      R| N         ^A
L_A/usr/local/clang/include/absl/base/nullability.hT:T257R:I23B:U Tnote: Eexpanded from macro 'absl_nullable'_
CA  P257T | U#RdEeDf_iBnYe( tahbissl)_)n)u l l a b l e   _ N u l l a b l e 
        |                        ^ 
   \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, iIn file included from ns2/s2debug.ccs:e18r:
tIn file included from _../src/s2/s2debug.ho:r55_:
aIn file included from s../src/s2/base/commandlineflags.hs:i21g:
nIn file included from _/usr/local/clang/include/absl/flags/flag.hi:m42p:
lIn file included from ,/usr/local/clang/include/absl/flags/internal/flag.h :&43&:
,/usr/local/clang/include/absl/synchronization/mutex.h :&1212&:,52 :f awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
e, t r1212u | eb)o;o
l       | C  ^o
nd/usr/local/clang/include/absl/container/internal/btree_container.hi:t509i:o52n:: :note: Cexpanded from macro 'ABSL_INTERNAL_X'a
stA  n509d | C a l l M e t h o d (AcBoSnLs_tI NCToEnRdNiAtLi_oAnT*T RaIbBsUlT_En_oCnAnPuTlUlR EcD)_ B{Y
(      t| h                                                   ^i
s))/usr/local/clang/include/absl/base/nullability.h,: 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l\_
n      o| n                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl: 32_:N9o:n nnote: umacro 'ABSL_INTERNAL_IF_false' defined herel
l
         | 32                     ^ | 
#define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.ccIn file included from :s2/s2debug.cc26::
18In file included from :
../src/s2/s2convex_hull_query.hIn file included from :../src/s2/s2debug.h27::
55In file included from :
../src/s2/s2loop.hIn file included from :../src/s2/base/commandlineflags.h34::
21In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/flags/flag.h30::
42In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h67::
43/usr/local/clang/include/absl/container/internal/btree_container.h:
:551/usr/local/clang/include/absl/synchronization/mutex.h::31221:: 54:warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   1221  | AbBoSoLl_ ICNoTnEdRiNtAiLo_nX:(:iCnassetrAtn_doCra_lalsFsuingcnt,i oinn(sceornts_to rC_oansdsiitgino_ni*m palb,s l&_&n,o n&n&u,l lf acl)s e{,
       t| r                                                     ^u
e);/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^22
: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'511
:52:   241 | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n511e |   a b s l _ n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #definIn file included from es2/s2debug.cc :A18B:
SIn file included from L../src/s2/s2debug.h_:I55N:
In file included from T../src/s2/base/commandlineflags.h:21E:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |  R N A Lb_oIoFl_ t(r*uaeb(silf__nsoantniuslfli efdu,n c.).(.T)*  iafb_ssla_tniuslfliaebdi
l      i| t        ^y
_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2convex_hull_query.cc::2226::
 In file included from ../src/s2/s2convex_hull_query.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2loop.h  :24134 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f30i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :a67b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_551n:o3n:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
 _Nonn  u551l | l 
       A| B                     ^S
L_INTEIn file included from Rs2/s2debug.ccN:A18L:
_In file included from X../src/s2/s2debug.h(:i55n:
sIn file included from e../src/s2/base/commandlineflags.hr:t21_:
oIn file included from r/usr/local/clang/include/absl/flags/flag.h_:a42s:
sIn file included from i/usr/local/clang/include/absl/flags/internal/flag.hg:n43,:
 /usr/local/clang/include/absl/synchronization/mutex.hi:n1230s:e34r:t _warning: otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]r
_as s1230i | g n _ i mbpolo,l  &(&*,a b&s&l,_ nfoanlnsuel,l  tfruunec));(
T      *|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bsl/usr/local/clang/include/absl/container/internal/btree_container.h_:n511u:l47l:a bnote: iexpanded from macro 'ABSL_INTERNAL_X'l
ity  _511u | n k n o w n ) , 
        | A                                 ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I289N:T34E:R Nnote: Aexpanded from macro 'absl_nullability_unknown'L
_A  T289T | R#IdBeUfTiEn_eC AaPbTsUlR_EnDu_lBlYa(btihliist)y)_)u n k n o w n   _ N u l l _ u n s p e c i f i e d\

            | |                                  ^                                              ^~~~

In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabili/usr/local/clang/include/absl/container/internal/btree_container.ht:y552_:u79n:k nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]w
n _N  u552l | l _ uAnBsSpLe_cIiNfTiEeRdN
A      L| _                                 ^X
(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSIn file included from Ls2/s2debug.cc_:I18N:
TIn file included from E../src/s2/s2debug.hR:N55A:
LIn file included from _../src/s2/base/commandlineflags.hX:(21F:
uIn file included from n/usr/local/clang/include/absl/flags/flag.hc:,42 :
CIn file included from a/usr/local/clang/include/absl/flags/internal/flag.hl:l43e:
e/usr/local/clang/include/absl/synchronization/mutex.h,: 1241K:Q12u:a lwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
MQu a1241l | ,   K V ablouoel,  (M*Vaablsule_,n o.n.n.u)l l   f u n\c
)      (| T        ^*
 absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     boo/usr/local/clang/include/absl/container/internal/btree_container.hl: 552(:*3a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
nonn  u552l | l   fAuBnScL)_(ITN*T EaRbNsAlL__nXu(lIn file included from ils2/s2coords.ccna:bs18iel:
rittIn file included from y__../src/s2/s2coords.hou:rn108k_n:
oawIn file included from sns../src/s2/s2point.h)i:g,27n
:
,      In file included from  | ../src/s2/s2coder.hi                                 ^:n
23s:
e/usr/local/clang/include/absl/base/nullability.hIn file included from r:/usr/local/clang/include/absl/status/status.ht289_::o6734r:
:_In file included from  a/usr/local/clang/include/absl/status/internal/status_internal.hnote: s:expanded from macro 'absl_nullability_unknown's29
i:
g  /usr/local/clang/include/absl/strings/cord.hn289:_ | 1140i#md:pe49fli:,n  ewarning:  &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&a
,b s&l &_1140,n |  u t l rl u aeb ,i  lf ai lt y s_ eu )n ; k
 n       o|  w   ^ n
   _/usr/local/clang/include/absl/container/internal/btree_container.h N: u509 l :l 52_ : u n note: s expanded from macro 'ABSL_INTERNAL_X'pC
eocri  fd509iR | ee dp 
E x       t | e                                  ^r n
 a l *A BaSbLsl__nIoNnTnEuRlNlA Lr_eApIn file included from T)s2/s2debug.ccT;:R
18I      :
B| In file included from U                                                ^../src/s2/s2debug.hT
:E55_:
CIn file included from A/usr/local/clang/include/absl/base/nullability.h../src/s2/base/commandlineflags.hP::T24121U:R:
E22DIn file included from :_/usr/local/clang/include/absl/flags/flag.h B:note: Y42expanded from macro 'absl_nonnull'(:

tIn file included from h/usr/local/clang/include/absl/flags/internal/flag.hi  :s241)43 | ):
#,/usr/local/clang/include/absl/synchronization/mutex.hd e: f i1242n e:  44a b: s  lwarning:  _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] n
 o n n  u l1242 l |    _     N to yn pn eu nl\la

m            e| |                                                     ^                     ^a

bs/usr/local/clang/include/absl/container/internal/common.hl::31::t9y:p enote: _macro 'ABSL_INTERNAL_IF_true' defined herei
den   t31i | t#yd<eTfIn file included from >is2/s2coords.ccn::e:18 t:
AyIn file included from Bp../src/s2/s2coords.hSe:L*108_ :
IaIn file included from Nb../src/s2/s2point.hTs:El27R_:
NnIn file included from Au../src/s2/s2coder.hLl:_l23Ia:
FbIn file included from _i/usr/local/clang/include/absl/status/status.htl:ri67ut:
eyIn file included from (_/usr/local/clang/include/absl/status/internal/status_internal.hiu:fn29_k:
snaotwins
f      i| e                                           ^d
, /usr/local/clang/include/absl/base/nullability.h.:.289.:)34 :i fnote: _/usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nullability_unknown's:
a1146t:  i10289s: | f #iwarning: detype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ed
f
i      n| e        ^  
1146a | bCsolr_dnRuelpl*a baiblsIn file included from ils2/s2convex_hull_query.cct_:yn_26ounn:
nkIn file included from unl../src/s2/s2convex_hull_query.hol: 27N:
eIn file included from w../src/s2/s2loop.hE:x34t:
eIn file included from r../src/s2/mutable_s2shape_index.hn:a30l:
RIn file included from e/usr/local/clang/include/absl/container/btree_map.hp:(67a:
bw/usr/local/clang/include/absl/container/internal/btree_container.hsn:l 552_:::N3su:lt lrwarning: _i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]nu
gn_svpie  ce552iw | f  id eaAdtB
aS      ,L
| _                                       ^I| 
N         ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22X:( inote: nexpanded from macro 'absl_nonnull's
er  t241_ | o#rd_eafsisnieg na,b siln_sneorntn_uolrl_ a_sIn file included from Nss2/s2debug.ccoIn file included from i:ns2/s2edge_clipping.ccg18n:un:
18l_In file included from :
li../src/s2/s2debug.hIn file included from 
m:../src/s2/s2edge_clipping.h      p55:| l:
,34                     ^In file included from  :

../src/s2/base/commandlineflags.h&In file included from :&../src/s2/base/logging.h21,::
 21In file included from &:
/usr/local/clang/include/absl/flags/flag.h&In file included from :,/usr/local/clang/include/absl/log/check.h42 ::
t37rIn file included from :
u/usr/local/clang/include/absl/flags/internal/flag.hIn file included from e:/usr/local/clang/include/absl/log/internal/check_impl.h,43 :f:
21a:
/usr/local/clang/include/absl/synchronization/mutex.hlIn file included from :s/usr/local/clang/include/absl/log/internal/check_op.he1249:):;418
:
:      In file included from  | /usr/local/clang/include/absl/log/internal/strip.hwarning:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
26
:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/log_message.h ::1249509319 | :: 47 20::   note:  warning: expanded from macro 'ABSL_INTERNAL_X'Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
*
 a  b509  s | 319 l | _  n o n   n u  lc lo  no bsjAetBc StwL,c_
hI      aN| r       ^T_E
tR*N/usr/local/clang/include/absl/base/nullability.h Aa:bLs241_l:A_22Tn:Tu Rlnote: Ilexpanded from macro 'absl_nonnull'Ba
UbTl  Ee241_  | cIn file included from C#ods2/s2coords.ccAnes:tPf18i&T :
nUev In file included from aRb)s../src/s2/s2coords.hE;l:_D
108n_      :
oB| In file included from nY                   ^(../src/s2/s2point.hn
t:hu27il/usr/local/clang/include/absl/base/nullability.h:
sl: In file included from _)257)../src/s2/s2coder.hN:,:o23 23n: :
n u In file included from note: l /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullable'l : 

67       :
   | In file included from                      ^257 /usr/local/clang/include/absl/status/internal/status_internal.h
 |  :# 29d e:
 f/usr/local/clang/include/absl/strings/cord.h i: n1159 e:  17a :b  s warning: In file included from l type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s2/s2debug.cc_
 :n 18u\ 
:
l1159      In file included from l | | ../src/s2/s2debug.hai                                              ^~~~n:b
l55il:
neIn file included from  e../src/s2/base/commandlineflags.h_ :/usr/local/clang/include/absl/container/internal/btree_container.hNC21o:u:
r552lIn file included from d:Rl/usr/local/clang/include/absl/flags/flag.h3eapb:l:*42 e 
:
a      warning: In file included from b| passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                      ^/usr/local/clang/include/absl/flags/internal/flag.hs
l
_:/usr/local/clang/include/absl/container/internal/btree_container.hn43:o:
511n:n/usr/local/clang/include/absl/synchronization/mutex.hu52l::l1250  N:note: e43expanded from macro 'ABSL_INTERNAL_X'w:
E xwarning: t  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e511r
 | n a  l R1250e p |  (  
          |                  ^  
AbBo/usr/local/clang/include/absl/base/nullability.hSo:Ll241_ :(Ia22bNs:lIn file included from T E:s2/s2edge_clipping.ccnote: R:N:expanded from macro 'absl_nonnull'tAy18
Lp:
e__  In file included from Ai241d../src/s2/s2edge_clipping.hT | e#:dTenfti34Rin:
eItBIn file included from U ya../src/s2/base/logging.hT<bTs>::El21_:_t:
ynCoIn file included from pAen:/usr/local/clang/include/absl/log/check.hPn::*Tu37l Ua:
blR In file included from _sE/usr/local/clang/include/absl/log/internal/check_impl.hNlD:o__n21nBoY:
nn(nIn file included from uutl/usr/local/clang/include/absl/log/internal/check_op.hll
lh:       im41e| s                     ^:
t)h
In file included from )o/usr/local/clang/include/absl/log/internal/strip.h)d:) (26) ):
 
/usr/local/clang/include/absl/log/internal/log_message.h       : | 321                                           ^: 
52 : /usr/local/clang/include/absl/base/nullability.h  :warning:  241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :
 22 :     321 note:  |  expanded from macro 'absl_nonnull'i 
n l   i 241n  | e # \dLe
of      gi| Mn                                                   ^ee
 sas/usr/local/clang/include/absl/container/internal/common.hbas:gl32e_:&n9 o:Ln nonote: ugmacro 'ABSL_INTERNAL_IF_false' defined herelMl
 e_s   Nso32an | gn#ed:ue:lfoli
pn      ee| r                      ^aA
tBoSrL<_<I(NwTcEhRaNrA_Lt_*I Fa_bfsall_sneu(lilfa_bslaet ivs)f i{e
d      ,|                                                     ^.
../usr/local/clang/include/absl/base/nullability.h): 257_:_23V:A _note: Aexpanded from macro 'absl_nullable'R
GS  _257_ | 
#      d| e        ^f
ine absIn file included from ls2/s2debug.cc_:n18u:
lIn file included from l../src/s2/s2debug.ha:b55l:
eIn file included from  ../src/s2/base/commandlineflags.h_:N21u:
lIn file included from l/usr/local/clang/include/absl/flags/flag.ha:b42l:
eIn file included from 
/usr/local/clang/include/absl/flags/internal/flag.h      :| 43                      ^:

/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2coords.cc | :#18d:
eIn file included from f../src/s2/s2coords.hi:n108eIn file included from :
 s2/s2convex_hull_query.ccaIn file included from :b../src/s2/s2point.h26s::
l27In file included from _:
../src/s2/s2convex_hull_query.hnIn file included from :o../src/s2/s2coder.h27n::
n23In file included from u:
../src/s2/s2loop.hlIn file included from :l/usr/local/clang/include/absl/status/status.h34 ::
_67In file included from N:
../src/s2/mutable_s2shape_index.hoIn file included from :n/usr/local/clang/include/absl/status/internal/status_internal.h30n:u:
29lIn file included from :
l/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/cord.h
::      671183| :
:                     ^47/usr/local/clang/include/absl/container/internal/btree_container.h
:: 553:warning: 78:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
 1183 |    553  |      In file included from A s2/s2debug.cc B :S 18L :
_ In file included from I ../src/s2/s2debug.hN T :E 55R :
 N In file included from  A ../src/s2/base/commandlineflags.h In file included from L: s2/s2edge_clipping.cc_21X : :
(18 In file included from i:
 /usr/local/clang/include/absl/flags/flag.hnIn file included from  :s../src/s2/s2edge_clipping.he 42 :r:
 34tIn file included from  :
_/usr/local/clang/include/absl/flags/internal/flag.h In file included from  o : ../src/s2/base/logging.hr43 :_:
 21a/usr/local/clang/include/absl/synchronization/mutex.hC:
s:oIn file included from s1260r/usr/local/clang/include/absl/log/check.hi:d:g43R37enp:*:
,  In file included from  warning: a/usr/local/clang/include/absl/log/internal/check_impl.hitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b:n
s21sl:
_en uIn file included from lr1260t/usr/local/clang/include/absl/log/internal/check_op.hl | _:a o41rb :
_l In file included from  abse/usr/local/clang/include/absl/log/internal/strip.h oso:lrie26p g(:
a)/usr/local/clang/include/absl/log/internal/log_message.hnb
s:_      l340i| :::m                                              ^46tpy
:lp /usr/local/clang/include/absl/base/nullability.h,e:_warning:  257itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d&:
e&23n,t  i: 340&t y | &note: < , expanded from macro 'absl_nullable'T f
>t:  :rr257utiy | peee:n#d, :vd *oeitd  friaAbusnbee ls)a_l;Fbn
oos      nrl| _nmu                                                                             ^nalt
Fulll/usr/local/clang/include/absl/container/internal/btree_container.hl um:ase496tbhlhe: o(d9)_SN:u(t) lr
note: li      nmacro 'ABSL_INTERNAL_X' defined herea| g                                          ^i
b
flye  
/usr/local/clang/include/absl/base/nullability.hS496      :i | | 241n#k                      ^*:d
e 22fa:ib nsnote: elexpanded from macro 'absl_nonnull' _
AnB  oS241nL | n_#uIdlNelT fEsiRniNneAk L,a_b
sXl      (_| Fn                                             ^uo
nncn/usr/local/clang/include/absl/base/nullability.hu,: l241lC :a_22Nlo:ln ennote: ueexpanded from macro 'absl_nonnull'l,
 lK
Q        u241| a                     ^l | ,
# dMeQfuianle,  aKbVsall_uneo,n nMuVlall u_eN,o n.n.u.l)l 
        |                       ^ 
\
      |         ^
In file included from s2/s2debug.cc:18:
In file included from ../src/s2/s2debug.h:55:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait/usr/local/clang/include/absl/container/internal/btree_container.h_:c553y:c3l:e swarning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
;
      |                                     ^553
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(fiinnsee ratb_solr__naosnsniuglnl,  _iNnosnenrutl_lo
r      _| a                     ^s
sign_impl, &&, &&, true, truIn file included from es2/s2debug.cc):;18
:
      In file included from | ../src/s2/s2debug.h  ^:
55:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/commandlineflags.h::50921::
52In file included from :/usr/local/clang/include/absl/flags/flag.h :42note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h:43:
  /usr/local/clang/include/absl/synchronization/mutex.h509: | 1293 : 33 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   A B1293S | Lv_oIiNdT ERReNgAiLs_tAeTrTMRuItBeUxTTEr_aCcAePrT(UvRoEiDd_ B(Y*(atbhsils_)n)o,n n u l l   f In file included from n s2/s2coords.cc) (: c18o n:
s In file included from t  ../src/s2/s2coords.hc h: a r108 * :
  a bIn file included from  s../src/s2/s2point.hl : _27n o:
\nIn file included from 
n../src/s2/s2coder.hu      :l| l23                                                   ^ :
m
sIn file included from g/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/common.h,::
6731      :
:| In file included from 9                                ^/usr/local/clang/include/absl/status/internal/status_internal.h:
: 29/usr/local/clang/include/absl/base/nullability.h:
note: :/usr/local/clang/include/absl/strings/cord.hmacro 'ABSL_INTERNAL_IF_true' defined here241:
:122222::   52 31: | note:  #expanded from macro 'absl_nonnull'warning: d
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
  f241i | n# ed1222 e | AfiBinnSelL _aiIbnNeTs lE_vnRooNinAndL u_ClIloF r__tNdro:un:eI(nilnfiu_nlsela
Rte      ip| s                     ^:f:iSe
wda,p (In file included from .Cs2/s2debug.cc.o:.r)d18 ::
i:In file included from fI_nsla../src/s2/s2debug.hitn:ie55Rsefp:
i*In file included from e ../src/s2/base/commandlineflags.hda:
b21      s:
| lIn file included from         ^_/usr/local/clang/include/absl/flags/flag.h
n:o42n:
nIn file included from u/usr/local/clang/include/absl/flags/internal/flag.hl:l43 :
r/usr/local/clang/include/absl/synchronization/mutex.hh:s1293): In file included from 62{s2/s2convex_hull_query.cc:
:       26| warning: :
                                                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 

../src/s2/s2convex_hull_query.h:27/usr/local/clang/include/absl/base/nullability.h:
: In file included from 2411293../src/s2/s2loop.h: | :v2234o:i:
d In file included from  note: R../src/s2/mutable_s2shape_index.hexpanded from macro 'absl_nonnull'e:g
30i:
  sIn file included from t241e/usr/local/clang/include/absl/container/btree_map.hr | :M#67udtee:
fx/usr/local/clang/include/absl/container/internal/btree_container.hiTn:re553 a:ac3eb:sr (lwarning: _v'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]on
iodn n(u  l*553al |  b _sN olnA_nBnuSolnLnl_
Iu      lN| lT                      ^Ef
RnN)A(Lc_oXn(sitn scehratr_*o ra_bassIn file included from ls_s2/s2edge_clipping.ccin:og18nn,n:
 uIn file included from lil../src/s2/s2edge_clipping.h nm:ss34ge:
,r
In file included from t      ../src/s2/base/logging.h_| :o                                                             ^r21_
:
aIn file included from /usr/local/clang/include/absl/base/nullability.hs/usr/local/clang/include/absl/log/check.h:s:241i37:g:
22nIn file included from _:/usr/local/clang/include/absl/log/internal/check_impl.hi :m21note: p:
expanded from macro 'absl_nonnull'lIn file included from ,
/usr/local/clang/include/absl/log/internal/check_op.h :  &41&241:
, | In file included from # /usr/local/clang/include/absl/log/internal/strip.h&d:e&26f,:
i /usr/local/clang/include/absl/log/internal/log_message.htn:er 398aub:se11,l:_  ntowarning: rntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nu
eIn file included from u)l  ls2/s2coords.cc;398 :
 | _18N       :
o|  In file included from n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../src/s2/s2coords.hn
u :vl108l/usr/local/clang/include/absl/container/internal/btree_container.h
o:
:      iIn file included from 509| d../src/s2/s2point.h:                     ^*: 47
27a::
 bIn file included from note: s../src/s2/s2coder.hIn file included from expanded from macro 'ABSL_INTERNAL_X'l:s2/s2debug.cc
_23:n:
18uIn file included from   :
l/usr/local/clang/include/absl/status/status.h509In file included from l: | ../src/s2/s2debug.ha67 :b:
 55lIn file included from  :
e/usr/local/clang/include/absl/status/internal/status_internal.h In file included from  : ../src/s2/base/commandlineflags.hc29 :o:
 21n/usr/local/clang/include/absl/strings/cord.h :
s: In file included from t1230 /usr/local/clang/include/absl/flags/flag.h&:A: 20B42v:S:
) LIn file included from ;warning: _/usr/local/clang/include/absl/flags/internal/flag.h
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I:      
N43| T:
          ^E /usr/local/clang/include/absl/synchronization/mutex.h
R1230:N | 1294/usr/local/clang/include/absl/base/nullability.hAi::Ln62257_l::Ai 23Tn:warning: Te  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]cRnote: I
oexpanded from macro 'absl_nullable'Bn
sUt T   1294E257c | _ | Ch # A adrP*  eTf aUbi nRes E  lD a_b_s n B lu_Yn l ( u ltalb lhel i  aCso b ) r l)ed  _ ,: N    :uI n l  l l i  an e Rbe  lpe 
 : :         d|   a                       ^ t a
(   )    c o n s   t     {  
        c\| o
n                   ^s      
t|  In file included from                                               ^~~~/usr/local/clang/include/absl/base/nullability.hvs2/s2edge_clipping.cc
:o:257i18:d:
23*In file included from  :/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2edge_clipping.ha ::b553note: 34s:expanded from macro 'absl_nullable':
l3
In file included from _:n../src/s2/base/logging.h   o:257warning: n21 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#n:
u
dIn file included from l/usr/local/clang/include/absl/container/internal/btree_container.he/usr/local/clang/include/absl/log/check.hl:f: 511i37o:bn:
e52 jIn file included from ,:a/usr/local/clang/include/absl/log/internal/check_impl.h
 b:      note: s21l| expanded from macro 'ABSL_INTERNAL_X':
_                                                             ^
In file included from n
/usr/local/clang/include/absl/log/internal/check_op.hu:  /usr/local/clang/include/absl/base/nullability.hl41511:l:
 | 241aIn file included from  :b/usr/local/clang/include/absl/log/internal/strip.h 22l: :e26   :
 note: _/usr/local/clang/include/absl/log/internal/log_message.h expanded from macro 'absl_nonnull'N: 
u400 l:l   17a241 :b | A# dlBewarning: eSf
itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L      n
_| Ie                      ^N   
aTb400sE | lR _N nA oLn _ncAuolTnlTs Rt_I NBvoUonTinEud_l*Cl A
aP      bT| sU                     ^lR
_EnDu_lBlYa(btlhei sc)o)n)s t &   vIn file included from  )s2/s2coords.cc ;:
In file included from  18      s2/s2debug.cc :
| : In file included from                 ^18 ../src/s2/s2coords.h
:
 :In file included from  108/usr/local/clang/include/absl/base/nullability.h../src/s2/s2debug.h :
:: In file included from 25755 ../src/s2/s2point.h::
 :23In file included from  27:../src/s2/base/commandlineflags.h :
 : In file included from 21note:  ../src/s2/s2coder.h:
expanded from macro 'absl_nullable' :In file included from 
 23/usr/local/clang/include/absl/flags/flag.h   :
:257 In file included from 42 | \/usr/local/clang/include/absl/status/status.h
:
#:      In file included from d67| /usr/local/clang/include/absl/flags/internal/flag.he:
                                                   ^:fIn file included from 
43i/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/common.h:
n::/usr/local/clang/include/absl/synchronization/mutex.he2931: :
:1309a9/usr/local/clang/include/absl/strings/cord.h:b::35s 1234:l:note:  _20nmacro 'ABSL_INTERNAL_IF_true' defined herewarning: :u
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] l
warning: l   a type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31b1309
 | l | #evd  oe1234_if | Ndiiun nRlleeli ganAibeB sclStoenLse
r_t      CI | oNcT                      ^nhE
daRVrNa*Ar LTa_rbIasFcl_e_trnr(ouvneon(iuidlf l_( s*Caaotbrisdsl:f_:inIeondnl,ni un.le.lR. e)fp n:i):f(a_
ss_      ac| t                                  ^hi
asrf/usr/local/clang/include/absl/base/nullability.hsi(:e)d241 
c:o      22n| s:        ^t 
 note: {expanded from macro 'absl_nonnull'

      |                      ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241fIn file included from :is2/s2convex_hull_query.ccn22e: :a26 b:
note: sIn file included from lexpanded from macro 'absl_nonnull'../src/s2/s2convex_hull_query.h_
n:o27  n:
241nIn file included from  | u../src/s2/s2loop.hl#:dl34e f_iN:
noenIn file included from  n../src/s2/mutable_s2shape_index.haub:sl30ll:
_
In file included from n      /usr/local/clang/include/absl/container/btree_map.ho| :n                     ^67n
:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l553In file included from  :s2/s2debug.cc_3N::o18 n:
nwarning: uIn file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l../src/s2/s2debug.h
l:
55      :
| In file included from                        ^../src/s2/base/commandlineflags.h553
: | 21 :
 In file included from A/usr/local/clang/include/absl/flags/flag.hB:S42L:
_In file included from I/usr/local/clang/include/absl/flags/internal/flag.hN:T43E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A1310L:_17X:( iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ert _1310o | r _ a s sciognns,t  icnhsaerr*t _aobIn file included from rss2/s2coords.cc_la:_s18sn:
ioIn file included from gnnn../src/s2/s2coords.h_u:lil108m :
pmIn file included from ls../src/s2/s2point.h,g: ,& 27&c:
o,nIn file included from s t../src/s2/s2coder.h& :&v23,o i:
tdIn file included from r*/usr/local/clang/include/absl/status/status.hu :ea67,b:
s lIn file included from tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hnrs2/s2edge_clipping.cc:oun:n29e18u:
l):
/usr/local/clang/include/absl/strings/cord.hl;In file included from 
: ../src/s2/s2edge_clipping.hc      1239:v| ):)34;  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~38:


:In file included from        ../src/s2/base/logging.h| /usr/local/clang/include/absl/container/internal/btree_container.h                ^:warning: :
21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]511:
/usr/local/clang/include/absl/base/nullability.h
:In file included from :47/usr/local/clang/include/absl/log/check.h241:: : 37123922:
note:  | :In file included from expanded from macro 'ABSL_INTERNAL_X'i n/usr/local/clang/include/absl/log/internal/check_impl.h
note: l:iexpanded from macro 'absl_nonnull'21  n
:
511eIn file included from   |   /usr/local/clang/include/absl/log/internal/check_op.ha 241 :b |  #41ds l:
:e In file included from :f i/usr/local/clang/include/absl/log/internal/strip.hnc o:red _26i  :
na/usr/local/clang/include/absl/log/internal/log_message.h tb:sAle_425Brnno:nSna31lL:u:l:_Clo r I_dwarning: NNRotype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nTeE
RnpNu*A l  Lal425
_b |       As l| _Tn o                     ^nTLR
nouIlgBMlIn file included from Ue s2/s2debug.ccCTosr:Esd18:_:a:
CIgIn file included from eAn../src/s2/s2debug.hlFPa:iTtU55naeRR:
lEeDpIn file included from :(_c../src/s2/base/commandlineflags.h:Baos:Yn_21(stt:
 trIn file included from eceh/usr/local/clang/include/absl/flags/flag.hih(a):sr
*42)       :
)| aIn file included from )                                     ^b/usr/local/clang/include/absl/flags/internal/flag.h 
s: l43/usr/local/clang/include/absl/base/nullability.h _:
: n/usr/local/clang/include/absl/synchronization/mutex.h241 o : :n1310 22n: :u47  l: note: l   expanded from macro 'absl_nonnull'warning: f 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i l
   e241 ,  |    1310#i n | d  t e f   i ncel  aoin sbtn \cse
)hl      _ nao| Arn                                              ^~~~nB*S
u Lalb_slA lT__TNnRooInnnBnUuuTlEl_lC lOmL
sDg      ;,
|                             ^c| o
                              ^n
st /usr/local/clang/include/absl/base/nullability.hv:o241i:d22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli ncev )a)b;s
l      _| n                                              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
In file included from   us2/s2coords.cc241l: | l#18
d:
      eIn file included from | f../src/s2/s2coords.h                     ^i:n
e108 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h
:      1245In file included from | :s2/s2edge_clipping.cc                     ^38:
:18 :
In file included from warning: ../src/s2/s2edge_clipping.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
34:
In file included from ../src/s2/base/logging.h:21 :
1245In file included from  | /usr/local/clang/include/absl/log/check.hi:n37l:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he: 21a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_op.hl::41::
cIn file included from o/usr/local/clang/include/absl/log/internal/strip.hr:d26_:
i/usr/local/clang/include/absl/log/internal/log_message.hn:t426e:r31n:a lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
Cor  d426R | e p *L oagbMsels_snauglelFaabtlael (Ccoornds:t: Icnhlairn*e Raebps:l:_tnroenen(u)l
l      /usr/local/clang/include/absl/container/internal/btree_container.h | :                                     ^f555
i:l3/usr/local/clang/include/absl/base/nullability.he::, 257 :warning: i23passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n:
t  note: lexpanded from macro 'absl_nullable'  i
555n |   e 257, 
 | A      #B| dS                              ^eLf
_iIn/usr/local/clang/include/absl/base/nullability.hNe:T 241Ea:Rb22NsA:lL __note: nXexpanded from macro 'absl_nonnull'u(l
iln  asb241el | ret #__doeNruf_lialnsaesb ilagebn
s,      l | _i                      ^nn
osnenrutl_lo r__Naosnsniuglnl_
h      i| n                     ^t
_impl, coIn file included from ns2/s2edge_clipping.ccs:t18 :
&In file included from ,../src/s2/s2edge_clipping.h
:      34| :
  ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509/usr/local/clang/include/absl/log/check.h::5237::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'ABSL_INTERNAL_X'21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41  :
509In file included from  | /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 427 : 31 :  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_I  N427T | E R N A L _ A T T R I B U T In file included from E s2/s2coords.cc_ :C 18A :
PcIn file included from To../src/s2/s2coords.hUn:Rs108Et:
D In file included from _c../src/s2/s2point.hBh:Ya27(rt:
*hIn file included from  i../src/s2/s2coder.has:b)23s)l:
_,In file included from n /usr/local/clang/include/absl/status/status.ho :n 67n :
u lIn file included from  l/usr/local/clang/include/absl/status/internal/status_internal.h  : f29 a:
 i/usr/local/clang/include/absl/strings/cord.h l: u1258 r: e36 _: m  swarning:  gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] )
   A B  S 1258L\ | _
AiT      nTl| Ri                                                   ^In
BeU /usr/local/clang/include/absl/container/internal/common.hTc:oEr32_dC_:Oi9Ln:Dt ;enote: 
rmacro 'ABSL_INTERNAL_IF_false' defined here      n
a| l                              ^:   :
32C | /usr/local/clang/include/absl/base/nullability.ho#:dr241ed:fR22eip:nF lenote: a expanded from macro 'absl_nonnull'tA
*B S  aLb241_s | lI#_NdnTeoEfnRinNnuAeLl l_
aI      Fb| _sf                                   ^la
_lns/usr/local/clang/include/absl/base/nullability.hoe:n(241ni:uf22l_l:s  a_note: tNexpanded from macro 'absl_nonnull'io
snfn  iu241el | dl,#
 d      e.f| .i                     ^n.e
)  a_b_sVlA__nAoRnGnSu_l_l
       _| N        ^o
nnull
      |                      ^In file included from 
s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNIn file included from As2/s2edge_clipping.ccL:_18X:
(In file included from i../src/s2/s2edge_clipping.hn:s34e:
rIn file included from t../src/s2/base/logging.h_:o21r:
_In file included from a/usr/local/clang/include/absl/log/check.hs:s37i:
gIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.h,: 21i:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_op.he:r41t:
_In file included from o/usr/local/clang/include/absl/log/internal/strip.hr:_26a:
s/usr/local/clang/include/absl/log/internal/log_message.hs:i436g:n36_:h iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_im  p436l | ,   cLoongsMte s&s,a
g      e| D  ^e
bu/usr/local/clang/include/absl/container/internal/btree_container.hg:F511a:t52a:l (note: cexpanded from macro 'ABSL_INTERNAL_X'o
nst   511c | h a r *   a b s l _ nAoBnSnLu_lIlN TfEiRlNeIn file included from A,s2/s2coords.ccL
:_      18A| :
T                                   ^In file included from T
../src/s2/s2coords.hR:I108/usr/local/clang/include/absl/base/nullability.hBUT:
:EIn file included from 241_../src/s2/s2point.h:C:22A27:P:
 TIn file included from note: U../src/s2/s2coder.hexpanded from macro 'absl_nonnull'R:
E23D:
  _In file included from 241B/usr/local/clang/include/absl/status/status.h | Y:#(67dt:
ehIn file included from if/usr/local/clang/include/absl/status/internal/status_internal.hsi:)n29)e:
) /usr/local/clang/include/absl/strings/cord.h a: b1268 s: l51 _: n  owarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] n
 u l l   1268_  |  Ni on nl n iu nl el  
v       o i| d\                     ^ 
C
o      r| d                                                   ^:
:I/usr/local/clang/include/absl/container/internal/common.hn:l32i:n9e:R enote: pmacro 'ABSL_INTERNAL_IF_false' defined here:
:Em   p32l | a#cdeeTfrienee( CAoBrSdLR_eIpN*T EaRbNsAlL__nIoFn_nfuallls er(eipf,_
In file included from s      s2/s2edge_clipping.cca| :t                                                  ^i18s
:
fIn file included from i../src/s2/s2edge_clipping.h/usr/local/clang/include/absl/base/nullability.he::d34,241:
 :In file included from .22../src/s2/base/logging.h.::. 21):
note:  In file included from expanded from macro 'absl_nonnull'_/usr/local/clang/include/absl/log/check.h
_:V37  A:
241_In file included from  | A#/usr/local/clang/include/absl/log/internal/check_impl.hdRe:GfSi21_n:
_eIn file included from 
 /usr/local/clang/include/absl/log/internal/check_op.h      a:b| 41s        ^:
l
_In file included from n/usr/local/clang/include/absl/log/internal/strip.ho:n26n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l446 :_43N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 446                     ^ | 
  LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2coords.cco:n18n:
uIn file included from l../src/s2/s2coords.hl: 108_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline voidIn file included from  s2/s2convex_hull_query.ccC:o26r:
dIn file included from :../src/s2/s2convex_hull_query.h::I27n:
lIn file included from i../src/s2/s2loop.hn:e34R:
eIn file included from p../src/s2/mutable_s2shape_index.h:::30E:
mIn file included from p/usr/local/clang/include/absl/container/btree_map.hl:a67In file included from c:
s2/s2edge_clipping.cce:/usr/local/clang/include/absl/container/internal/btree_container.hT18:r:
e558In file included from e:(../src/s2/s2edge_clipping.h3C:o:34r :
dIn file included from Rwarning: ../src/s2/base/logging.hepassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:p
21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb  :s55837l | :
_ nIn file included from  o/usr/local/clang/include/absl/log/internal/check_impl.hnAn:Bu21Sl:
LlIn file included from  _/usr/local/clang/include/absl/log/internal/check_op.hrIe:Np41,T:

EIn file included from R      /usr/local/clang/include/absl/log/internal/strip.hN| :A                                                  ^26L
:
_/usr/local/clang/include/absl/log/internal/log_message.hX/usr/local/clang/include/absl/base/nullability.h:(:454i241:n:38s22:e:r t warning: _note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oexpanded from macro 'absl_nonnull'
r
_a    s241454s |  | i#g dne ,Lf ioignnMese easrbsstal_g_oenrQo_nuaniseustillglyn F__aNhtoiannltn(_uciomnlpsllt,
  c      ch| oa                     ^nr
s*t  a&b,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l509l: 52f:i lnote: eexpanded from macro 'ABSL_INTERNAL_X',

      |                                      ^  
509 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bAsTlT_RnIoBnUnTuEl_lC A_PNToUnRnIn file included from Eus2/s2coords.ccDl:_l18B
:
Y      (In file included from | t                     ^../src/s2/s2coords.hh
:i108s:
)In file included from )../src/s2/s2point.h,: 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from /usr/local/clang/include/absl/strings/cord.h s2/s2edge_clipping.cc: :1282 18: :
 47In file included from  :../src/s2/s2edge_clipping.h\ :
34warning:       :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| In file included from 
                                                   ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/container/internal/common.h In file included from :1282/usr/local/clang/include/absl/log/check.h32 | ::i379n:
:lIn file included from i /usr/local/clang/include/absl/log/internal/check_impl.hn:note: e21 macro 'ABSL_INTERNAL_IF_false' defined herev:

oIn file included from i/usr/local/clang/include/absl/log/internal/check_op.h   d:32 41 | C:
#oIn file included from rd/usr/local/clang/include/absl/log/internal/strip.hed:f:26i::
nI/usr/local/clang/include/absl/log/internal/log_message.hen: l456Ai:Bn38Se:LR _ewarning: Iptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:
T:ESRe  Nt456TAr | eL e_ (ILCFoo_rgdfRMaeelpsss*e a(agibefsQl_u_sinaeotntnilusylfFli aertdea,pl ,(.c
.o      .n| )s                                              ^ t
_ _c/usr/local/clang/include/absl/base/nullability.hVh:Aa241_r:A*22R :Ga Sbnote: _s_expanded from macro 'absl_nonnull'l

_      n|   o        ^n241
n | u#ldle ffiinIn file included from les2/s2convex_hull_query.cce :,a26 b:
isIn file included from nl../src/s2/s2convex_hull_query.ht_:n o27ln:
inIn file included from nu../src/s2/s2loop.hel:l,34 
_:
N      In file included from o| n../src/s2/mutable_s2shape_index.h                                     ^n:u
30l:
l/usr/local/clang/include/absl/base/nullability.hIn file included from 
:/usr/local/clang/include/absl/container/btree_map.h      241:| :67                     ^22:

:/usr/local/clang/include/absl/container/internal/btree_container.h :558note: :expanded from macro 'absl_nonnull'3
:   warning: 241 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
def  i558n | e   aAbBsSlL__nIoNnTnEuRlNIn file included from lAs2/s2closest_edge_query.cc L:__18NIn file included from X:
os2/s2crossing_edge_query.ccn(In file included from :ni../src/s2/s2closest_edge_query.hn28u:s:
l34eIn file included from l:
r../src/s2/s2edge_crosser.h
In file included from t:      ../src/s2/s2closest_edge_query_base.h_23| :o:
                     ^33rIn file included from 
:
_../src/s2/s2edge_crossings.hIn file included from a:/usr/local/clang/include/absl/container/flat_hash_set.hs47:s:
45iIn file included from :
In file included from gIn file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/container/internal/raw_hash_set.hs2/s2coords.ccns2/s2edge_clipping.cc:::,:55266318 18:
::
i:
53/usr/local/clang/include/absl/flags/flag.hIn file included from nIn file included from ::../src/s2/s2coords.hs../src/s2/s2edge_clipping.h 110:e::warning: 108r3429'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

t:
:In file included from _In file included from  ../src/s2/s2point.ho../src/s2/base/logging.h:warning:  r:27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]2663_21:

 | a:
sIn file included from s In file included from  ../src/s2/s2coder.hi  /usr/local/clang/include/absl/log/check.h :g110: 23n | 37 :
_v:
 In file included from hoIn file included from T/usr/local/clang/include/absl/status/status.hii/usr/local/clang/include/absl/log/internal/check_impl.hd&:n: &67t21S :
_:
evIn file included from iIn file included from ta/usr/local/clang/include/absl/status/internal/status_internal.hlm/usr/local/clang/include/absl/log/internal/check_op.hpF:u:ll29e41,a:
g (:
a /usr/local/clang/include/absl/strings/cord.hAIn file included from bc:B/usr/local/clang/include/absl/log/internal/strip.hso1290nS:Ll:s26_:I54t:
:N: /usr/local/clang/include/absl/log/internal/log_message.hFT &:lEwarning: R,457
atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N:      g
A38| <L:  ^T_>  
A*1290/usr/local/clang/include/absl/container/internal/btree_container.hwarning: T  | :itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ta511n
Rb:sllI52  i_B:457nnUo n | eTnote: En  expanded from macro 'ABSL_INTERNAL_X'v_uC 
 olAl i d    P  511C T f | loUr   aRgd : E , :DI   c_n l ioBn  n eYRs t (et h  p :i:T & s S A  )eBt v)ST r)
 Lce      e{_
o| OI      n                                                    ^~~~rNE| ms
tT                            ^p Ec
tRyh(Na/usr/local/clang/include/absl/base/nullability.hCArL:o*_ 241rAdaR:eTpb*22 Tasb:Rls I_lnote: _BnUexpanded from macro 'absl_nonnull'noTn
nuEu_l  lCl241alA  | bPlfe# TraedpUiRe,flEu
iDr_      neB| e                                                     ^ _Ym
a(sbts/usr/local/clang/include/absl/base/nullability.hlgh):
_in257      so:| )n)23                                     ^n):
u l/usr/local/clang/include/absl/base/nullability.h  l : note:  241_ expanded from macro 'absl_nullable' :N
 22o   :n257  n |  #note: uexpanded from macro 'absl_nonnull' dle
f i l   n
 241e        |  | a #                      ^ bds
 el _f i nn eu \a
lb      ls| alb                                                   ^_l
neo/usr/local/clang/include/absl/container/internal/common.h n:n_31Nu:ul9ll :_l Nanote: obmacro 'ABSL_INTERNAL_IF_true' defined herenl
neu
   l      31l|  |                       ^
#
      d| e                     ^f
ine ABSLIn file included from _s2/s2crossing_edge_query.ccI:N28T:
EIn file included from R../src/s2/s2edge_crosser.hN:A23L:
_In file included from I../src/s2/s2edge_crossings.hF:_47t:
rIn file included from u../src/s2/s2predicates.he:(55i:
f/usr/local/clang/include/absl/flags/flag.h_:s118a:t29i:s fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
d,   .118. | .v)o iidf _SseattFilsafgi(eadb
s      l| :        ^:
Flag<T>* ab/usr/local/clang/include/absl/container/internal/raw_hash_set.hs:l2692In file included from _:s2/s2convex_hull_query.ccn58:o:26n :
nIn file included from warning: uIn file included from ../src/s2/s2convex_hull_query.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ls2/s2coords.cc:
l:27 18:
f:
In file included from  lIn file included from ../src/s2/s2loop.h2692a../src/s2/s2coords.h: | g:34 ,108:
  :
In file included from  cIn file included from o../src/s2/mutable_s2shape_index.hn ../src/s2/s2point.h:s :30t 27:
 c:
oIn file included from nVIn file included from &/usr/local/clang/include/absl/container/btree_map.h s../src/s2/s2coder.h:vt:67) 23:
 T:
/usr/local/clang/include/absl/container/internal/btree_container.h{&In file included from :
 /usr/local/clang/include/absl/status/status.h558      v::| a673                            ^l:
:
uIn file included from  e/usr/local/clang/include/absl/status/internal/status_internal.h /usr/local/clang/include/absl/base/nullability.hwarning: :A:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]29B241
:
S:/usr/local/clang/include/absl/strings/cord.hL22:_:1301  I :558N56note:  | T:expanded from macro 'absl_nonnull' E 
 Rwarning: NA  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]AB241S
L | L__#AI dTN1301eTT | fREIiinRlBinnNUAeLeT E__ CaAXPvb(TosilnUiRd_ sCEonreDr_tB_oodY:nrn(u:_talIlh s_nNissloin)i)g
nn,n       iue| Rnelp                                                         ^~~~sle
:
r      :tC| _o                     ^om
rm_iatsTsriegen(_choinnstt_ iCmoprld,R ecpo*n satb s&l,_
n      u| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
ab  l559e |   o l d _ r e p , 
        |                                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 :c23o:n snote: texpanded from macro 'absl_nullable' 
&,   257f | a#ldseef,i nter uaeb,s
l      _| n                  ~~~~~~~~~~~~~~~~~~~~~u
lla  b560l | e   _ N u l l a b l e 
        |                        ^ 
   const_itIn file included from es2/s2coords.ccr:a18t:
oIn file included from r../src/s2/s2coords.h(:h108i:
nIn file included from t../src/s2/s2point.h): 27A:
BIn file included from S../src/s2/s2coder.hL:_23I:
NIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
AIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:C29O:
M/usr/local/clang/include/absl/strings/cord.hM:A1302):;50
:       | warning:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h :1302511 | : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
       511  |                      A B S L _ I N T E R N A L _ A T T RCIoBrUdTREe_pC*A PaTbUsRlE_Dn_oBnYn(utlhli sr)e)p), 
        |                                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' In file included from 
 s2/s2edge_clipping.cc /usr/local/clang/include/absl/container/internal/raw_hash_set.h:   : 182412734 :
 | : In file included from #65 ../src/s2/s2edge_clipping.hd: :e \34fwarning: 
:
i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      In file included from n
| ../src/s2/base/logging.he                                              ^~~~: 
a21 b:
s2734lIn file included from  | _/usr/local/clang/include/absl/log/check.h n: o37 n:
n uIn file included from l /usr/local/clang/include/absl/log/internal/check_impl.hl  : _21 N:
 o/usr/local/clang/include/absl/log/internal/check_op.hn :n u180l l: 
42       : |                        ^warning:  
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
T&&   v180a | lAuBeS LA_BASTLT_RIINBTUETREN_APLU_RAET_TFRUINBCUTTIEO_NC AcPoTnUsRtE Dc_hBaYr(*t haibss)l)_
n      o| n                                                                ^~~~n
ull MakeChIn file included from es2/s2coords.ccc:k18F:
aIn file included from i../src/s2/s2coords.hl:S108t:
rIn file included from i../src/s2/s2point.hn:g27(:

In file included from       ../src/s2/s2coder.h| :                                         ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
1312:38  :241  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin e1312  | aibnslli_nneo nanbuslll: :_cNoorndn_uilnlt
e      r| n                     ^a
l::CordRep*In file included from  s2/s2edge_clipping.cca:b18s:
lIn file included from _../src/s2/s2edge_clipping.hn:u34l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from C/usr/local/clang/include/absl/log/check.ho:r37d:
:In file included from :/usr/local/clang/include/absl/log/internal/check_impl.hI:n21l:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e181R:e25p:/usr/local/clang/include/absl/container/internal/btree_container.h: ::warning: 561ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:l
e3a:r   (181warning: ) | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
{ 
        |   c                                     ^561o
 | n s/usr/local/clang/include/absl/base/nullability.h t:A 257Ba:Sb23Ls:_l I:note: N:expanded from macro 'absl_nullable'TS
EtR  Na257At | Lu#_sdXe*(f iiannbess elar_btsn_loo_nnrnu_ulllalas bsslitega n_t,Nu usil,nl sacebolrnets
_t      o | r                      ^c_
haasrs*i ganb_shli_nnto_ninmuplll,  pcroenfsitx )&;,

            | |                         ^  ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h::241509::2252::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241 |   #509d | e f i n e   a b s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uAlTlT
R      I| B                     ^U
TE_CAPTURIn file included from Es2/s2edge_clipping.ccD:_18B:
YIn file included from (../src/s2/s2edge_clipping.hIn file included from t:s2/s2coords.cch34:i:
18sIn file included from :
)../src/s2/base/logging.hIn file included from ):../src/s2/s2coords.h,21: :
108 In file included from :
 /usr/local/clang/include/absl/log/check.hIn file included from  :../src/s2/s2point.h 37: :
27 In file included from :
 /usr/local/clang/include/absl/log/internal/check_impl.h In file included from : ../src/s2/s2coder.h21 ::
 23/usr/local/clang/include/absl/log/internal/check_op.h :
: In file included from 181 /usr/local/clang/include/absl/status/status.h: :58 67: :
  In file included from warning:  /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
 29 :
   /usr/local/clang/include/absl/strings/cord.h\181:
 | 1321       :|  48                                                   ^ :
  c/usr/local/clang/include/absl/container/internal/common.hwarning: o:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n31s
:t9 :a b note: s1321macro 'ABSL_INTERNAL_IF_true' defined herel | 
:i:n   lS31it | nae# tvduoeisfd* i Cnaoebr ds:Al:B_ISnLon_lnIinNnuTleElRR eNspAt:La:_CtIouFps_y,tT rocuAoern(rsiatyf (_ccshhaaartr*i *sa bfsailbe_sdn,ol n_.nn.uo.ln)nl  uildfslt_ )sp acrtoeinfssiftxi) e;{d


                  | | |                                                ^                                                         ^        ^


/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    In file included from 241241s2/s2convex_hull_query.cc |  | #:d#e26df:
eifnIn file included from ie../src/s2/s2convex_hull_query.hn :ea 27ab:
sblIn file included from s_../src/s2/s2loop.hln:_o34nn:
nouIn file included from nl../src/s2/mutable_s2shape_index.hnl:u 30_lN:
olnIn file included from n u/usr/local/clang/include/absl/container/btree_map.hl_:lN
o67      n:
| n/usr/local/clang/include/absl/container/internal/btree_container.h                     ^u:
l561l:
3      :|                       ^
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(iIn file included from ns2/s2edge_clipping.ccs:e18r:
tIn file included from _../src/s2/s2edge_clipping.ho:r34_:
aIn file included from s../src/s2/base/logging.hs:i21g:
nIn file included from ,/usr/local/clang/include/absl/log/check.h :i37n:
sIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:t21_:
o/usr/local/clang/include/absl/log/internal/check_op.hr:_189a:s28s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
hint  _189i | mipnll,i nceo ncsotn s&t, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
::  S562t | a t u s *   a b s l _ n o n n u l l  cAosnSstta t&u,s (tcrounes,t  faablssle:,:
S      t| a                  ~~~~~~~~~~~~~~~~~~~~~t
us&   563s | )   { 
        |                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
co  n241s | t#_dietfeirnaet oarb(shli_nnto)n nAuBlSlL __INNoTnEnRuNlAlL
_      C| O                     ^M
MA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_AIn file included from Ts2/s2edge_clipping.ccT:R18I:
BIn file included from U../src/s2/s2edge_clipping.hT:E34_:
CIn file included from A../src/s2/base/logging.hP:T21U:
RIn file included from E/usr/local/clang/include/absl/log/check.hD:_37B:
YIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.ht:h21i:
s/usr/local/clang/include/absl/log/internal/check_op.h):)193,: 21 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       193  |  c o n s t   a b s l : :\S
t      a| t                                              ^~~~u
s* absl/usr/local/clang/include/absl/container/internal/btree_container.h_:n561o:n3n:u lwarning: l passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
s/usr/local/clang/include/absl/container/internal/btree_container.hS:t511a:t52u:s (note: cexpanded from macro 'ABSL_INTERNAL_X'o
nst   511a | b s l : : S t a t u sAOBrS<LT_>I&N TsE)R N{A
L      _| A                    ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B241U:T22E:_ Cnote: Aexpanded from macro 'absl_nonnull'P
TU  R241E | D#_dBeYf(itnhei sa)b)s)l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
  \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_falIn file included from ss2/s2edge_clipping.cce:(18i:
fIn file included from _../src/s2/s2edge_clipping.hs:a34t:
iIn file included from s../src/s2/base/logging.hf:i21e:
dIn file included from ,/usr/local/clang/include/absl/log/check.h :.37.:
.In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h :_21_:
V/usr/local/clang/include/absl/log/internal/check_op.hA:_202A:R46G:S __
      | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewStrIn file included from is2/s2convex_hull_query.ccn:g26(:
)In file included from ;../src/s2/s2convex_hull_query.h
:      27| :
              ^In file included from 
../src/s2/s2loop.h:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/mutable_s2shape_index.h::2230::
 In file included from /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'absl_nonnull'67
:
/usr/local/clang/include/absl/container/internal/btree_container.h  :241564 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e ab  s564l | _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lX
(      i| n                     ^s
ert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
In file included from    s2/s2edge_clipping.cc31: | 18#:
dIn file included from e../src/s2/s2edge_clipping.hf:i34n:
eIn file included from  ../src/s2/base/logging.hA:B21S:
LIn file included from _/usr/local/clang/include/absl/log/check.hI:N37T:
EIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hN:A21L:
_/usr/local/clang/include/absl/log/internal/check_op.hI:F226_:t59r:u ewarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
f_sa  t226i | svfoiiedd ,M a.k.e.C)h eicfk_OspaVtailsufeiSetdr
i      n| g        ^(
std::ostream& oIn file included from ss2/s2convex_hull_query.cc,: 26c:
oIn file included from n../src/s2/s2convex_hull_query.hs:t27 :
vIn file included from o../src/s2/s2loop.hi:d34*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:
a/usr/local/clang/include/absl/container/internal/btree_container.hb:l564e: 3p:) ;warning: 
      'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]| 
                                                          ^
/usr/local/clang/include/absl/base/nullability.h:  257564: | 23 :  Anote: Bexpanded from macro 'absl_nullable'S
L_  I257N | T#EdReNfAiLn_eX (aibnssle_rntu_lolra_balses i_gNnu,l lianbsleer
t      _| o                      ^r
_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),      In file included from  s2/s2edge_clipping.cc : 18 :
 In file included from  ../src/s2/s2edge_clipping.h : 34 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37\:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                              ^~~~21
:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]564
:3:   warning: 276 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
o/usr/local/clang/include/absl/container/internal/btree_container.hn:s511t: 52v:o inote: dexpanded from macro 'ABSL_INTERNAL_X'*
 ab  s511l | _ n u l l a b l e   oApBeSrLa_tIoNrT<E<R(NsAtLd_:A:ToTsRtIrBeUaTmE&_,C
A      P| T            ^U
RE/usr/local/clang/include/absl/base/nullability.hD:_257B:Y23(:t hnote: iexpanded from macro 'absl_nullable's
))  )257  |  # d e f i n e   a b s l _ n u l l a b l e   _\N
u      l| l                                                   ^a
bl/usr/local/clang/include/absl/container/internal/common.he:
31      :| 9                      ^:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #dIn file included from es2/s2edge_clipping.ccf:i18n:
eIn file included from  ../src/s2/s2edge_clipping.hA:B34S:
LIn file included from _../src/s2/base/logging.hI:N21T:
EIn file included from R/usr/local/clang/include/absl/log/check.hN:A37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hF:_21t:
r/usr/local/clang/include/absl/log/internal/check_op.hu:e277(:i50f:_ swarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
isf  i277e | d ,   . . . )   i f _ s a t i s f i e d 
        |          ^ 
             In file included from cs2/s2convex_hull_query.cco:n26s:
tIn file included from  ../src/s2/s2convex_hull_query.hv:o27i:
dIn file included from *../src/s2/s2loop.h :a34b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.ha:b67l:
e/usr/local/clang/include/absl/container/internal/btree_container.h :v564a:l3u:e )warning: ;'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                                                  ^
  /usr/local/clang/include/absl/base/nullability.h564: | 257 : 23A:B Snote: Lexpanded from macro 'absl_nullable'_
IN  T257E | R#NdAeLf_iXn(ei nasbesrlt__nourl_laasbslieg n_,N uilnlsaebrlte_
o      r| _                      ^a
ssign_hint_impl, coIn file included from ns2/s2edge_clipping.ccs:t18 :
&In file included from ,../src/s2/s2edge_clipping.h
:      34| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/base/logging.h:21  :
565In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 278 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
con  s278t |  c&o,n sttr uveo,i dt*r uaeb,s
l      _| n                  ~~~~~~~~~~~~~~~~~~~~u
lla  b566l | e   o p e r a t o r < < ( s t d : : ocsotnrseta_mi&t,e rsattdo:r:(nhuilnltp)t rA_BtS)L;_
I      N| T            ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L257_:C23O:M Mnote: Aexpanded from macro 'absl_nullable')
;
        257|  |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
def/usr/local/clang/include/absl/container/internal/btree_container.hi:n511e: 47a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
null  a511b | l e   _ N u l l a b lAeB
S      L| _                      ^I
NTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     co/usr/local/clang/include/absl/container/internal/btree_container.hn:s568t: 3c:h awarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*
 abs  l568_ | n o nAnBuSlLl_)I;N
T      E| R                                                ^N
AL/usr/local/clang/include/absl/base/nullability.h_:X241(:i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn,e  ianbsselr_tn_oonrn_ualsls i_gNno_nhniunltl_
i      m| p                     ^l
, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2edge_clipping.cc:  18509:
 | In file included from  ../src/s2/s2edge_clipping.h : 34 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:A295L:_20A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUTE  _295C | AcPoTnUsRtE Ds_iBgYn(etdh icsh)a)r,*   a b s l _ n o n n u l l   o p e r a t o r < <\(
s      t| d                                                   ^:
:b/usr/local/clang/include/absl/container/internal/common.ha:s32i:c9_:o snote: tmacro 'ABSL_INTERNAL_IF_false' defined herer
eam   <32c | h#adre,f iTnrea iAtBsS>L&_,I
N      T| E                   ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241I:F22_:f anote: lexpanded from macro 'absl_nonnull's
e(  i241f | _#sdaetfiisnfei eadb,s l._.n.o)n n_u_lVlA __ANRoGnSn_u_l
l      
|               ^| 
                     ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from In file included from s2/s2edge_clipping.cc../src/s2/s2loop.h::1834:
:
In file included from In file included from ../src/s2/s2edge_clipping.h../src/s2/mutable_s2shape_index.h::3430:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/btree_map.h::2167:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/check.h::56837::
3In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/internal/check_op.h
:296:63:   568 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L296_ | I N T E R N A L _ X ( i n s e r t _ o r _ a s s i g n ,   i n s e r t _ o r _ a s s i gcno_nhsitn ts_iigmnpeld,  cchoanrs*t  a&b,s l&_&n,o
n      n| u  ^l
l)/usr/local/clang/include/absl/container/internal/btree_container.h;:
511      :| 52                                                              ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X':
241:22:   511note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f iAnBeS La_bIsNlT_EnRoNnAnLu_lAlT T_RNIoBnUnTuEl_lC
A      P| T                     ^U
RED_BY(this)))        In file included from  s2/s2edge_clipping.cc : 18 :
 In file included from  ../src/s2/s2edge_clipping.h : 34 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h\:
37      :
| In file included from                                                    ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/container/internal/common.h:/usr/local/clang/include/absl/log/internal/check_op.h32::2989::22 : note: warning: macro 'ABSL_INTERNAL_IF_false' defined here
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 |   #298d | ecfoinnset  AuBnSsLi_gInNeTdE RcNhAaLr_*I Fa_bfsall_sneo(ninfu_lsla toipsefriaetdo,r .<.<.()s t_d_:V:Ab_aAsRiGcS__o_s
t      r| e        ^a
m<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* aIn file included from bs2/s2convex_hull_query.ccs:l26_:
nIn file included from o../src/s2/s2convex_hull_query.hn:n27u:
lIn file included from l../src/s2/s2loop.h):;34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                                                  ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22:/usr/local/clang/include/absl/container/internal/btree_container.h :570note: :expanded from macro 'absl_nonnull'3
:   warning: 241 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
defi  n570e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_sIn file included from as2/s2edge_clipping.cct:i18s:
fIn file included from i../src/s2/s2edge_clipping.he:d34,:
 In file included from .../src/s2/base/logging.h.:.21):
 In file included from _/usr/local/clang/include/absl/log/check.h_:V37A:
_In file included from A/usr/local/clang/include/absl/log/internal/check_impl.hR:G21S:
_/usr/local/clang/include/absl/log/internal/check_op.h_:
323      :| 46        ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 | In file included from  s2/s2convex_hull_query.cc :f26r:
iIn file included from In file included from es2/s2coords.ccn../src/s2/s2convex_hull_query.h:d:18 27:
v:
oIn file included from In file included from i../src/s2/s2coords.h../src/s2/s2loop.hd:: 10834A:
:
bIn file included from In file included from s../src/s2/s2point.h../src/s2/mutable_s2shape_index.hl::F2730o:
:
rIn file included from In file included from m../src/s2/s2coder.h/usr/local/clang/include/absl/container/btree_map.ha::t2367F:
:
lIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hu/usr/local/clang/include/absl/status/status.h:s:570h67:(:
3SIn file included from :t/usr/local/clang/include/absl/status/internal/status_internal.h r:warning: i29passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n:

g/usr/local/clang/include/absl/strings/cord.hi:f1505  y:570S41 | i: n  kwarning: A*type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B 
SaLb_ Is1505Nl | T_iEnnRolNinAnnLeu_ lXvl(o iisnidsn eCkro,tr
_d      o:| r:                                             ^C_o
apsy/usr/local/clang/include/absl/base/nullability.hsT:io241gA:nr,22r a:yi Innote: msexpanded from macro 'absl_nonnull'pel
r(tc  _h241aor | r*# _daaebfssisnlie_gn noa_nbhnsilun_ltln_o indmsnptul)l, lc  oc_noNsnotsn tn{ u
&l      ,l|  
                                        ^&      
&| ,                     ^

/usr/local/clang/include/absl/base/nullability.h      :| 241  ^:
22: /usr/local/clang/include/absl/container/internal/btree_container.h:note: 511expanded from macro 'absl_nonnull':
52:   241note:  | expanded from macro 'ABSL_INTERNAL_X'#
def  i511n | e   a b s l _ n o n nAuBlSlL __INNoTnEnRuNlAlL
_      A| T                     ^T
RIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSLIn file included from _s2/s2coords.ccI:N18T:
EIn file included from R../src/s2/s2coords.hN:A108L:
_In file included from I../src/s2/s2point.hF:_27t:
rIn file included from u../src/s2/s2coder.he:(23i:
fIn file included from _/usr/local/clang/include/absl/status/status.hs:a67t:
iIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hf:i29e:
d/usr/local/clang/include/absl/strings/cord.h,: 1514.:.29.:)  warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
_sa t1514i | s f i e dc
o      r| d        ^_
internal::CordRIn file included from es2/s2convex_hull_query.ccp:*26 :
aIn file included from b../src/s2/s2convex_hull_query.hs:l27_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :t30r:
eIn file included from e/usr/local/clang/include/absl/container/btree_map.h): 67{:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 570                            ^:
3: /usr/local/clang/include/absl/base/nullability.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]241
:22: note: expanded from macro 'absl_nonnull'  
570 |    241  | A#BdSeLf_iInNeT EaRbNsAlL__nXo(ninnuslelr t__Noorn_nauslsli
g      n| ,                     ^ 
insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) In file included from {s2/s2edge_clipping.cc
:      18| :
                            ^In file included from 
../src/s2/s2edge_clipping.h:34:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e428f:i44n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o428n | nAuBlSlL __ANToTnRnIuBlUlT
E      _| R                     ^E
TURNS_NONNULL const char* ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l572_:n3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l Ma  k572e | C h eAcBkSOLp_SItNrTiEnRgN(A
L      _| X                                           ^(
ins/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | ,# dienfsienret _aobrs_la_snsoingnnu_lhli In file included from n_s2/s2coords.cctN:_o18in:
mnIn file included from pu../src/s2/s2coords.hll:,l108 
:
c      In file included from o| ../src/s2/s2point.hn                     ^:s
t27 :
&In file included from ,../src/s2/s2coder.h :&23&:
,In file included from In file included from 
/usr/local/clang/include/absl/status/status.hs2/s2edge_clipping.cc      ::| 6718  ^:
:

In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2edge_clipping.h/usr/local/clang/include/absl/container/internal/btree_container.h:::2934509:
:
:In file included from /usr/local/clang/include/absl/strings/cord.h52../src/s2/base/logging.h:::1530 21::
note: 55In file included from expanded from macro 'ABSL_INTERNAL_X':/usr/local/clang/include/absl/log/check.h
 :37warning: :
  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 509
/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h1530 : |  429i n: l31 i: n  ewarning: A type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]CBo
SrLd_:  I:429NC | hTu En Rk NI ATtL1e_ rAvaT1tTo,Rr IT:B2:U CThvEu2_n,Ck AIn file included from IctPes2/s2debug.ccoTr:nUa18tsoRr:
tE(In file included from  Dc_../src/s2/s2debug.hcoBnY:(hs55tat:
hr In file included from Cio*../src/s2/base/commandlineflags.h sr:a)d)*21 ba,b:
ss l/usr/local/clang/include/absl/flags/flag.hl _:n_ n110oo n:nn n29u u:ll l  lc owarning: r  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]de 
)x  p r{  
 t110       e | x|  v ot                                                      ^ i)d
    SAe/usr/local/clang/include/absl/base/nullability.ht B :FS L241l _ :\aAg22
T(:      Ta | Rbnote: s                                                   ^lIexpanded from macro 'absl_nonnull'B
U:
T:/usr/local/clang/include/absl/container/internal/common.h  EF:l241_31a | gN<O:#TI>9*dNe:f La biInnote: sNemacro 'ABSL_INTERNAL_IF_true' defined here lE_
na;bos   
nln31u      _ | l| ln #f                              ^odnln
uealfl/usr/local/clang/include/absl/base/nullability.hgi :_,n 241Nec:oo 22Ann:Bsn uStLnote: _l expanded from macro 'absl_nonnull'TI&l 
vN
T)        E 241{| R                     ^ | 
N
#      Ad| Le                            ^f_
iInFe_ /usr/local/clang/include/absl/base/nullability.hta:rb241us:el22(_:in fonote: _nexpanded from macro 'absl_nonnull'sn
autl  il241s  | f_#iNdeeodf,n in.nu.el.l )
a b      is| f                     ^l_
_snaotninsuflile d_
N      o| n        ^n
ull
      |                      ^
In file included from In file included from s2/s2edge_clipping.ccs2/s2convex_hull_query.cc::1826:
:
In file included from In file included from ../src/s2/s2edge_clipping.h../src/s2/s2convex_hull_query.h::3427:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2loop.h::2134:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/mutable_s2shape_index.h::3730:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/btree_map.h::2167:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::432572::133::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  432 |   c572o | n s In file included from tAs2/s2debug.cc Bc:Sh18La:
_rIn file included from I*../src/s2/s2debug.hN T:aE55bRs:
NlIn file included from A_../src/s2/base/commandlineflags.hLn:_o21Xn:
(n/usr/local/clang/include/absl/flags/flag.hiu:nls118le: r29Mta:_k oewarning: rCtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_h
aescsk  iO118gpn | S,vt oriiinndsg e(SrTet1t_ Fovlr1a_,ga (saTsb2i sgvln2:_:,hF
li      na| tg            ^_<
iTm/usr/local/clang/include/absl/base/nullability.hp>:l*241, : a22bcs:lo_ nnnote: soexpanded from macro 'absl_nonnull'tn
 n&  ,u241 l | &l# &df,elf
ai      nge| ,   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ac
bosnl  s_t573 nV | o& n  nv u) l  {l 
         _|  N                            ^ o
 n n/usr/local/clang/include/absl/base/nullability.h u: l241 l:
 22       :|   t                     ^note: r
uexpanded from macro 'absl_nonnull'e
,   f241a | l#In file included from sds2/s2edge_clipping.ccee:,f18 i:
cnIn file included from oe../src/s2/s2edge_clipping.hn :sa34tb:
_sIn file included from il../src/s2/base/logging.ht_:en21ro:
nanIn file included from tu/usr/local/clang/include/absl/log/check.hol:rl37( :
h_In file included from iN/usr/local/clang/include/absl/log/internal/check_impl.hno:tn21)n:
 u/usr/local/clang/include/absl/log/internal/check_op.hAl:Bl433S
:L      56_| :I                     ^ N
warning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L433_ | C O M M A ) ; 
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |                      A B S L _cIoNnTsEtR NcAhLa_rA*T TaRbIsBlU_TnEo_nCnAuPlTlU ReExDp_rBtYe(xtth)i s{)
)      ,|                                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                                              ^~~~l
_nonnull/usr/local/clang/include/absl/container/internal/btree_container.h :_572N:o3n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l

      /usr/local/clang/include/absl/container/internal/btree_container.h| :                     ^511
:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      In file included from | s2/s2edge_clipping.cc        ^:
18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2convex_hull_query.cc21::
26/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 451../src/s2/s2convex_hull_query.h::127::
 In file included from ../src/s2/s2loop.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]34
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/mutable_s2shape_index.h::45030::
25In file included from :/usr/local/clang/include/absl/container/btree_map.h :67note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
/usr/local/clang/include/absl/container/internal/btree_container.h:574  :4503 | :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  x,   574x | ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_innosnenrutl_lo)r
_      a| s                        ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,241 :i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn_eh ianbts_li_mnpoln,n ucloln s_tN o&n,n u&l&l,

            | |                      ^  ^

/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSLIn file included from _s2/s2edge_clipping.ccI:N18T:
EIn file included from R../src/s2/s2edge_clipping.hN:A34L:
_In file included from A../src/s2/base/logging.hT:T21R:
IIn file included from B/usr/local/clang/include/absl/log/check.hU:T37E:
_In file included from C/usr/local/clang/include/absl/log/internal/check_impl.hA:P21T:
U/usr/local/clang/include/absl/log/internal/check_op.hR:E452D:_1B:Y (warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
is)  )452, |  A B S L _ L O G _ I N T E R N A L _ D E F I N E\_
M      A| K                                                   ^E
_C/usr/local/clang/include/absl/container/internal/common.hH:E31C:K9_:O Pnote: _macro 'ABSL_INTERNAL_IF_true' defined hereS
TRI   N31G | _#EdXeTfEiRnNe( iAnBtS6L4__ItN)T;E
R      N| A^L
_I/usr/local/clang/include/absl/log/internal/check_op.hF:_449t:r31u:e (note: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'f
_sa  t449i | s f iees2/s2debug.ccxd:,t23 e:.r1.n:.  )twarning: e '__COUNTER__' is a C2y extension [-Wc2y-extensions]mip
fl_ast   ae23t  | icSs2of_inDesEdFtI
N E      c_h| ab        ^ro
*o la(bss2ld_enboungn,u l!In file included from l!s2/s2convex_hull_query.cc g:Mo26ao:
kgIn file included from el../src/s2/s2convex_hull_query.hCe:h:27:eD:
cEIn file included from kB../src/s2/s2loop.hOU:pG34S_:
tMIn file included from rO../src/s2/mutable_s2shape_index.hiD:nE30g,:
(
In file included from        /usr/local/clang/include/absl/container/btree_map.h |  :^\67

:
      | /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/commandlineflags.h                              ^::
57427::/usr/local/clang/include/absl/base/nullability.h33:::241  :warning: 22note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:expanded from macro 'S2_DEFINE_bool'
 
note: expanded from macro 'absl_nonnull'   
27   | 574    |  241 A | B S#ALdB_eSfFLiL_nAIeGN (TbaoEboRslN,lA _nLna_omXen,(n idunelsflea ur_ltNt__ovnoanrlu_ulael,s 
sd      ie| gs                     ^cnr
,i pitnisoenr)t
In file included from _      s2/s2edge_clipping.cco| :r  ^18_
:
aIn file included from s../src/s2/s2edge_clipping.h/usr/local/clang/include/absl/flags/flag.hs::i34170g:
:nIn file included from _3../src/s2/base/logging.hh::i 21n:
note: tIn file included from expanded from macro 'ABSL_FLAG'_/usr/local/clang/include/absl/log/check.h
i:m37  p:
170lIn file included from  | ,/usr/local/clang/include/absl/log/internal/check_impl.h  : c21Ao:
Bn/usr/local/clang/include/absl/log/internal/check_op.hSs:Lt_452 F:&L1A,: G _&warning: I&type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M,P

L      /usr/local/clang/include/absl/log/internal/check_op.h(| T:  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~y450p
e:,25 :  n a575note: m | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e ,
   d   e450 f  | a  u l t  _  v a  l u xe ,,    hx e, l ptc)ro
un      es| ,  ^t 
 tcr/usr/local/clang/include/absl/flags/flag.hhu:ae272r,:* 3 c:ao bnnote: ssexpanded from macro 'ABSL_FLAG_IMPL'lt
__niot  ne272nr | u al tAlBoS)r
L(_      hF| L                        ^Ai
nGt/usr/local/clang/include/absl/base/nullability.h_)I: M241AP:BL22_SD:LE _Cnote: LIexpanded from macro 'absl_nonnull'AN
RTEE_  RH241ENL | AP#L_d_WeCRfOiAMnPMePA E)aR;(b
nsa      lm| _e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n,
o nhne/usr/local/clang/include/absl/container/internal/btree_container.hul:lp509l):  47_ :N  o note: n expanded from macro 'ABSL_INTERNAL_X' n
 u l l   
 509         | |                        ^   
           \ 
       A| B  ^S
L_/usr/local/clang/include/absl/flags/flag.hI:N250T:E44R:N Anote: Lexpanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'In file included from _
s2/s2edge_clipping.ccA:T18  T:
250RIn file included from  | I../src/s2/s2edge_clipping.h B: Uc34To:
EnIn file included from _s../src/s2/base/logging.htCe:Ax21Pp:
TrIn file included from U /usr/local/clang/include/absl/log/check.hRa:Eu37Dt:
o_ In file included from BF/usr/local/clang/include/absl/log/internal/check_impl.hYL:(A21tG:
hS/usr/local/clang/include/absl/log/internal/check_op.hi_:sh453)e:)l1,p: _  swarning: t type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o r
 a g e   _453 # |  #A nB aS mL e_  L AO BG S_ LI _N IT NE TR EN\RA
NL      A_| LD                                              ^~~~_E
UFNIINQEU_EM_A/usr/local/clang/include/absl/container/internal/btree_container.hSK:ME574A_:LC3LH:_E NCwarning: AKpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]M_
EO(/usr/local/clang/include/absl/container/internal/btree_container.hP):_ 511S\:T
52R      :I|  N                                           ^note: G
expanded from macro 'ABSL_INTERNAL_X'_
E/usr/local/clang/include/absl/base/optimization.hX:T306  E:511R46 | N: (  unote:  iexpanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME' n
 t 6   4306 _ |  t  ) A;aB
sS      mL| (_^AI
BNST/usr/local/clang/include/absl/log/internal/check_op.hLE:_R449IN:NAT31LE:_R ANnote: TAexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'TL
R_IUB  NU449IT | QE U_ ECe_AxSPtMTeAUrLRnLE _DtN_eABmMYpE(l1ta(ht.ieas b)cs)ol)n. s_ t_  C cO hU aN rT *E  R a_ b_ s) l) _
 n       o|  n                                             ^ n
 u l l   M a\k
e      C| h                                                   ^e
ck/usr/local/clang/include/absl/container/internal/common.hO:p31S:t9r:i nnote: gmacro 'ABSL_INTERNAL_IF_true' defined here(
      \31
 |       #| d                              ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fIiFn_et raubes(li_fn_osnantuilslf i_eNdo,n n.u.l.l)
       i| f                     ^_
satisfiedIn file included from 
s2/s2edge_clipping.cc      :| 18        ^:

In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:In file included from 21s2/s2convex_hull_query.cc:
:/usr/local/clang/include/absl/log/internal/check_op.h26::
453In file included from :../src/s2/s2convex_hull_query.h1::27 :
In file included from warning: ../src/s2/s2loop.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
34:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/mutable_s2shape_index.h450::3025:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:note: 67expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

/usr/local/clang/include/absl/container/internal/btree_container.h:574  :4503 | :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
  x,   574x | ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_innosnenrutl_lo)r
_      a| s                        ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,241 :i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn_eh ianbts_li_mnpoln, ncuolnls t_ N&o,n n&u&l,l

            | |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~                     ^

  575 |                   trueIn file included from ,s2/s2edge_clipping.cc :t18r:
uIn file included from e../src/s2/s2edge_clipping.h,: 34c:
oIn file included from n../src/s2/base/logging.hs:t21_:
iIn file included from t/usr/local/clang/include/absl/log/check.he:r37a:
tIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:(21h:
i/usr/local/clang/include/absl/log/internal/check_op.hn:t454): 1A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT  E454R | NAABLS_LC_OLMOMGA_)I;N
T      E| R                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
AL_/usr/local/clang/include/absl/container/internal/btree_container.hD:E511F:I47N:E _note: Mexpanded from macro 'ABSL_INTERNAL_X'A
KE_  C511H | E C K _ O P _ S T R IANBGS_LE_XITNETRENR(NfAlLo_aAtT)T;R
I      B| U^T
E_/usr/local/clang/include/absl/log/internal/check_op.hC:A449P:T31U:R Enote: Dexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
BY(  t449h | i s )e)x)t e r n   t e m p l a t e   c o n s t   c h a r *\ 
a      b| s                                              ^~~~l
_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]577
:3:   warning: 455 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
BSL_  L577O | G _ IANBTSELR_NIANLT_EDRENFAILN_EX_(MiAnKsEe_rCtH_EoCrKIn file included from __s2/s2coords.ccaO:sP18s_:
iSIn file included from gT../src/s2/s2coords.hnR:,I108 N:
iGIn file included from n_../src/s2/s2point.hsE:eX27rT:
tEIn file included from _R../src/s2/s2coder.hoN:r(23_d:
aoIn file included from su/usr/local/clang/include/absl/status/status.hsb:il67ge:
n)In file included from _;/usr/local/clang/include/absl/status/internal/status_internal.hh
:i      29n| :
t^_/usr/local/clang/include/absl/strings/cord.h
i:m/usr/local/clang/include/absl/log/internal/check_op.h1666p::l44948,:: 31 &:warning: & type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'c 
o1666n | s  itn449 l | &i ,n 
ee       xC| to  ^er
dr n/usr/local/clang/include/absl/container/internal/btree_container.h C:to509er:md52p::l: aAnote: tdexpanded from macro 'ABSL_INTERNAL_X'ev
 acnoc  ne509sA | tn  dc Rh ea ar d* ( C ah ba sr lIA_tBenSroLan_tnIouNrlT*l E aRMbNasAklLe__CnAohTnenTcuRklIOlBp USiTttEr,_i
Cn      Ag| P(                                               ^T 
U R E/usr/local/clang/include/absl/base/nullability.h\D:
_241      B:| Y22                              ^(:
t h/usr/local/clang/include/absl/base/nullability.hnote: i:expanded from macro 'absl_nonnull's241
):)22  ,:241   |  note: # expanded from macro 'absl_nonnull'd e
f i   n e241   |  a#b ds el f_ in no en  n au bl sl l  __ nN oo nn\n
nu      ul| ll                                                   ^l 

_      N| /usr/local/clang/include/absl/container/internal/common.ho                     ^:n
32n:u9l:l 
      note: | macro 'ABSL_INTERNAL_IF_false' defined here                     ^

   32 | #dIn file included from es2/s2edge_clipping.ccf:i18n:
eIn file included from  ../src/s2/s2edge_clipping.hA:B34S:
LIn file included from _../src/s2/base/logging.hI:N21T:
EIn file included from R/usr/local/clang/include/absl/log/check.hN:A37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hF:_21f:
a/usr/local/clang/include/absl/log/internal/check_op.hl:s455e:(1i:f _warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
t/usr/local/clang/include/absl/log/internal/check_op.hi:s450f:i25e:d ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'.In file included from 
.s2/s2coords.cc.:  )18450 :
 | _In file included from _ ../src/s2/s2coords.hV :A 108_ :
A In file included from R ../src/s2/s2point.hGx:S,27_ :
_xIn file included from ,
../src/s2/s2coder.h       :c| 23o        ^:
n
In file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:In file included from s1672s2/s2convex_hull_query.ccl:_:41n26:o:
 nIn file included from warning: n../src/s2/s2convex_hull_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u:
l27l:
)In file included from 
 ../src/s2/s2loop.h      1672:|  | 34                        ^i:
n
In file included from l../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.hi:n:30e241 :
v:oIn file included from 22i/usr/local/clang/include/absl/container/btree_map.hd::  67C:
onote: /usr/local/clang/include/absl/container/internal/btree_container.hrexpanded from macro 'absl_nonnull':d
577::  :3241A:d |  v#warning: adpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ne
cfei(n  eC 577ha | ab rsI ltA_eBrnSaotnLno_urIl*Nl T aEb_RsNlNoA_nLnn_oXnu(nliulnl
sl       ei| rt                     ^t,
 _soirz_ea_sts ing_nb,y tienss)e r{t
_      o| In file included from r                                        ^s2/s2edge_clipping.cc_
:a18s:
s/usr/local/clang/include/absl/base/nullability.hIn file included from i:../src/s2/s2edge_clipping.hg241:n:34_22:
h:In file included from i ../src/s2/base/logging.hn:note: t21expanded from macro 'absl_nonnull'_:

iIn file included from m/usr/local/clang/include/absl/log/check.h  p:241l37 | ,#:
 dIn file included from &e/usr/local/clang/include/absl/log/internal/check_impl.h&f:i,21 nc:
eo/usr/local/clang/include/absl/log/internal/check_op.h na:bs456st:l 1&_:,n o
warning: n      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n| 
u  ^l
l   456/usr/local/clang/include/absl/container/internal/btree_container.h_ | N:Ao511nB:Sn52Lu:_l Llnote: O
expanded from macro 'ABSL_INTERNAL_X'G      
_| I                     ^N
  T511E | R N A L _ D E F I N EA_BMSALK_EI_NCTHEERCNKA_LO_PA_TSTTRRIIBNUGT_EE_XCTAEPRTNU(RcEhDa_rB)Y;(
t      h| i^s
))/usr/local/clang/include/absl/log/internal/check_op.h): 449 : 31 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
      449  |      e x t e r n   t e\m
p      l| a                                                   ^t
e /usr/local/clang/include/absl/container/internal/common.hc:o32n:s9t:  cnote: hmacro 'ABSL_INTERNAL_IF_false' defined herea
r*    a32b | s#ld_enfoinnneu lAlB SMLa_kIeNCThEeRcNkAOLp_SItFr_ifnagl(s e ( i\f
_      s| a                              ^t
is/usr/local/clang/include/absl/base/nullability.hf:i241e:d22,:  .note: .expanded from macro 'absl_nonnull'.
)   _241_ | V#Ad_eAfRiGnSe_ _a
b      s| l        ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from In file included from ../src/s2/s2loop.hs2/s2edge_clipping.cc::3418:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2edge_clipping.h::3034:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/base/logging.h::6721:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/check.h::57937::
3In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/internal/check_op.h
:457:1:   579warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S457L | _AIBNSTLE_RLNOAGL__IXN(TiEnRsNeArLt__DoErF_IaNsEs_iMgAnK,E _iCnHsEeCrKt__OoPr__SaTsRsIiNgGn__EhXiTnEtR_Ni(mupnls,i g&n&e,d  ccohnasrt) ;&
,      
|       ^| 
  ^
/usr/local/clang/include/absl/log/internal/check_op.h:449/usr/local/clang/include/absl/container/internal/btree_container.h::31509:: 52:note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'note: 
expanded from macro 'ABSL_INTERNAL_X'
  449 |    509  | e x t e r n   t e m pAlBaStLe_ IcNoTnEsRtN AcLh_aArT*T RaIbBsUlT_En_oCnAnPuTlUlR EMDa_kBeYC(htehciksO)p)S,t r i n g (       \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

        | 241                                                   ^ | 
#d/usr/local/clang/include/absl/container/internal/common.he:f32i:n9e:  anote: bmacro 'ABSL_INTERNAL_IF_false' defined heres
l_n   o32n | n#udlelf i_nNeo nAnBuSlLl_
I      N| T                     ^E
RNAL_IFIn file included from _s2/s2edge_clipping.ccf:a18l:
sIn file included from e../src/s2/s2edge_clipping.h(:i34f:
_In file included from s../src/s2/base/logging.ha:t21i:
sIn file included from f/usr/local/clang/include/absl/log/check.hi:e37d:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h.:.21.:
)/usr/local/clang/include/absl/log/internal/check_op.h :_457_:V1A:_ Awarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G
S_/usr/local/clang/include/absl/log/internal/check_op.h_:
450      :| 25        ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |  In file included from  s2/s2convex_hull_query.cc : 26 :
 In file included from x../src/s2/s2convex_hull_query.h,: 27x:
,In file included from  ../src/s2/s2loop.hc:o34n:
sIn file included from t../src/s2/mutable_s2shape_index.h :c30h:
aIn file included from r/usr/local/clang/include/absl/container/btree_map.h*: 67a:
b/usr/local/clang/include/absl/container/internal/btree_container.hs:l579_:n3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l)
        | 579                        ^ | 
  /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#Xd(eifnisneer ta_bosrl__ansosningunl,l  i_nNsoenrntu_lolr
_      a| s                     ^s
ign_hint_impl, &&, const &In file included from ,s2/s2edge_clipping.cc
:      18| :
  ^In file included from 
../src/s2/s2edge_clipping.h:34/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/base/logging.h::5221::
 In file included from /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'ABSL_INTERNAL_X'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21511:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 458 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S458L | _AIBNSTLE_RLNOAGL__IANTTTERRINBAULT_ED_ECFAIPNTEU_RMEADK_EB_YC(HtEhCiKs_)O)P)_ S T R I N G _ E X T E R N ( c o n s t   s t d :\:
s      t| r                                                   ^i
ng/usr/local/clang/include/absl/container/internal/common.h&:)31;:
9      :|  ^
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/log/internal/check_op.h
:449:31   :31  | note: #expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'd
efi  n449e |   A BeSxLt_eIrNnT EtReNmApLl_aItFe_ tcrounes(ti fc_hsaart*i safbiseld_,n o.n.n.u)l li fM_askaetCihsefcikeOdp
S      t| r        ^i
ng(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2convex_hull_query.cc22::26 :
In file included from note: ../src/s2/s2convex_hull_query.hexpanded from macro 'absl_nonnull':
27:
In file included from   ../src/s2/s2loop.h241: | 34#:
dIn file included from e../src/s2/mutable_s2shape_index.hf:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n579o:n3n:u lwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
_Nonn  u579l | l 
       A| B                     ^S
L_INTERNAL_X(insIn file included from es2/s2edge_clipping.ccr:t18_:
oIn file included from r../src/s2/s2edge_clipping.h_:a34s:
sIn file included from i../src/s2/base/logging.hg:n21,:
 In file included from i/usr/local/clang/include/absl/log/check.hn:s37e:
rIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h_:o21r:
_/usr/local/clang/include/absl/log/internal/check_op.ha:s458s:i1g:n _warning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
n/usr/local/clang/include/absl/log/internal/check_op.ht:_450i:m25p:l ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'&
&,   450c | o n s t   & ,x
,       | x  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 co  n580s | t   c h a r *   a b s l _ n o n n u lfla)l
s      e| ,                        ^ 
tr/usr/local/clang/include/absl/base/nullability.hu:e241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
_i  t241e | r#adteofri(nhei natb)s lA_BnSoLn_nIuNlTlE R_NNAoLn_nCuOlMlM
A      )| ;                     ^

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |        In file included from  s2/s2edge_clipping.cc : 18A:
BIn file included from S../src/s2/s2edge_clipping.hL:_34I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:A37T:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:B21U:
T/usr/local/clang/include/absl/log/internal/check_op.hE:_459C:A1P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_BY  (459t | hAiBsS)L)_)L O G _ I N T E R N A L _ D E F I N E _ M A K E _\C
H      E| C                                              ^~~~K
_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, co/usr/local/clang/include/absl/container/internal/btree_container.hn:s581t: 3c:h awarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*
 abs  l581_ | n o nAnBuSlLl_)I
N      T| E                        ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241X:(22i:n snote: eexpanded from macro 'absl_nonnull'r
t_  o241r | _#adsesfiignne,  aibnssle_rnto_nonru_lals s_iNgonn_nhuilnlt
_      i| m                     ^p
l, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_In file included from os2/s2edge_clipping.ccr:_18a:
sIn file included from s../src/s2/s2edge_clipping.hi:g34n:
_In file included from h../src/s2/base/logging.hi:n21t:
_In file included from i/usr/local/clang/include/absl/log/check.hm:p37l:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h&:&21,:
 /usr/local/clang/include/absl/log/internal/check_op.hc:o460n:s1t:  &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  460 |   A582B | S L _ L O G _ I N T E R N A L _ D E FtIrNuEe_,M AfKaEl_sCeH,E CcKo_nOsPt__SiTtReIrNaGt_oErX(ThEiRnNt()c oAnBsStL _cIhNaTrE*R NaAbLs_lC_OnMoMnAn)u;l
l      )| ;                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      | ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509/usr/local/clang/include/absl/log/internal/check_op.h::47449:: 31:note:  expanded from macro 'ABSL_INTERNAL_X'note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  509   | 449  |      e x t e r n  AtBeSmLp_lIaNtTeE RcNoAnLs_tA TcThRaIrB*U TaEb_sClA_PnToUnRnEuDl_lB YM(atkheiCsh)e)c,k O p S t r i n g (       \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:                                               ^~~~expanded from macro 'absl_nonnull'

  241 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f581i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n511o:n52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X' 
_No  n511n | u l l 
        |                       ^ 
   ABIn file included from Ss2/s2edge_clipping.ccL:_18I:
NIn file included from T../src/s2/s2edge_clipping.hE:R34N:
AIn file included from L../src/s2/base/logging.h_:A21T:
TIn file included from R/usr/local/clang/include/absl/log/check.hI:B37U:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.h_:C21A:
P/usr/local/clang/include/absl/log/internal/check_op.hT:U460R:E66D:_ Bwarning: Ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
thi  s460) | )A)B S L _ L O G _ I N T E R N A L _ D E F I N E _ M\A
K      E| _                                                   ^C
HE/usr/local/clang/include/absl/container/internal/common.hC:K32_:9O:P _note: Smacro 'ABSL_INTERNAL_IF_false' defined hereT
RIN   G32_ | E#XdTeEfRiNn(ec oAnBsStL _cIhNaTrE*R NaAbLs_lI_Fn_ofnanluslel()i;f
_      s| a                                                                 ^t
is/usr/local/clang/include/absl/base/nullability.hf:i241e:d22,:  .note: .expanded from macro 'absl_nonnull'.
)   _241_ | V#Ad_eAfRiGnSe_ _a
b      s| l        ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |   In file included from  s2/s2convex_hull_query.cc : 26 :
xIn file included from ,../src/s2/s2convex_hull_query.h :x27,:
 In file included from c../src/s2/s2loop.ho:n34s:
tIn file included from  ../src/s2/mutable_s2shape_index.hc:h30a:
rIn file included from */usr/local/clang/include/absl/container/btree_map.h :a67b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_583n:o3n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
)
      |                         ^  
583 | /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eXf(iinnes earbts_lo_rn_oansnsuilgln ,_ Nionnsneurltl_
o      r| _                     ^a
ssign_hint_impl, &&, const &,In file included from 
s2/s2edge_clipping.cc      :| 18  ^:

In file included from ../src/s2/s2edge_clipping.h:/usr/local/clang/include/absl/container/internal/btree_container.h34::
509In file included from :../src/s2/base/logging.h52::21 :
In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'ABSL_INTERNAL_X':
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21509:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 461 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S461L | _AIBNSTLE_RLNOAGL__IANTTTERRINBAULT_ED_ECFAIPNTEU_RMEADK_EB_YC(HtEhCiKs_)O)P,_ S T R I N G _ E X T E R N ( 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449 :\31
:       | note:                                                    ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

/usr/local/clang/include/absl/container/internal/common.h:  31449: | 9 :  enote: xmacro 'ABSL_INTERNAL_IF_true' defined heret
ern    31t | e#mdpelfaitnee  cAoBnSsLt_ IcNhTaErR*N AaLb_sIlF__ntornuneu(lilf _MsaakteiCshfeicekdO,p S.t.r.i)n gi(f _ s a\t
i      s| f                              ^i
ed/usr/local/clang/include/absl/base/nullability.h
:      241| :        ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2convex_hull_query.ccb:s26l:
_In file included from n../src/s2/s2convex_hull_query.ho:n27n:
uIn file included from l../src/s2/s2loop.hl: 34_:
NIn file included from o../src/s2/mutable_s2shape_index.hn:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                     ^/usr/local/clang/include/absl/container/internal/btree_container.h
:583:3: In file included from warning: s2/s2edge_clipping.cc:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]18
:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from   ../src/s2/base/logging.h583: | 21 :
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:A462L:_24X:( iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
er  t462_ | o r _ a scsoingsnt,  siingsneerdt _cohra_ra*s saibgsnl__hnionntn_uilmlp)l;,
       &| &                       ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :& ,note: 
expanded from macro 'absl_nonnull'      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #  d584e | f i n e   a b s l _ n o n n u l l   _tNrounen,u ltlr
u      e| ,                     ^ 
const_iIn file included from ts2/s2edge_clipping.cce:r18a:
tIn file included from o../src/s2/s2edge_clipping.hr:(34h:
iIn file included from n../src/s2/base/logging.ht:)21 :
AIn file included from B/usr/local/clang/include/absl/log/check.hS:L37_:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hT:E21R:
N/usr/local/clang/include/absl/log/internal/check_op.hA:L462_:C24O:M Mwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;/usr/local/clang/include/absl/base/nullability.h
:      241| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~22
: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
509:47  :241  | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n509e |   a b s l _ n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBIn file included from Us2/s2edge_clipping.ccT:E18_:
CIn file included from A../src/s2/s2edge_clipping.hP:T34U:
RIn file included from E../src/s2/base/logging.hD:_21B:
YIn file included from (/usr/local/clang/include/absl/log/check.ht:h37i:
sIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h):,21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 461 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      461  |  A B S L _ L O G\_
I      N| T                                              ^~~~E
RNAL_D/usr/local/clang/include/absl/container/internal/btree_container.hE:F583I:N3E:_ Mwarning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]K
E/usr/local/clang/include/absl/container/internal/btree_container.h_:C511H:E52C:K _note: Oexpanded from macro 'ABSL_INTERNAL_X'P
_ST  R511I | N G _ E X T E R N ( 
A      B| S^L
_I/usr/local/clang/include/absl/log/internal/check_op.hN:T450E:R25N:A Lnote: _expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'A
TT  R450I | B U T E _ C AxP,T UxR,E Dc_oBnYs(tt hcihsa)r)*)  a b s l _ n o n n u l l ) 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:                                                    ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/common.h  :24131 | :#9d:e fnote: imacro 'ABSL_INTERNAL_IF_true' defined heren
e a   b31s | l#_dneofine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(innull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.ccn:s18e:
rIn file included from t../src/s2/s2edge_clipping.h_:o34r:
_In file included from a../src/s2/base/logging.hs:s21i:
gIn file included from n/usr/local/clang/include/absl/log/check.h,: 37i:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.he:r21t:
_/usr/local/clang/include/absl/log/internal/check_op.ho:r464_:a26s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
_/usr/local/clang/include/absl/base/nullability.hh:i241n:t22_:i mnote: pexpanded from macro 'absl_nonnull'l
,   &241& | ,# dceofnisnte  &a,b
s      l| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
onnul  l584  | _ N o n n u l l 
        |                       ^ 
     In file included from  s2/s2edge_clipping.cct:r18u:
eIn file included from ,../src/s2/s2edge_clipping.h :t34r:
uIn file included from e../src/s2/base/logging.h,: 21c:
oIn file included from n/usr/local/clang/include/absl/log/check.hs:t37_:
iIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.he:r21a:
t/usr/local/clang/include/absl/log/internal/check_op.ho:r463(:h1i:n twarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L463_ | IANBTSELR_NLAOLG__CIONMTMEAR)N;A
L      _| D                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E
FINE_/usr/local/clang/include/absl/container/internal/btree_container.hM:A511K:E47_:C Hnote: Eexpanded from macro 'ABSL_INTERNAL_X'C
K_OP  _511S | T R I N G _ E X T E RANB(S
L      _| I^N
TE/usr/local/clang/include/absl/log/internal/check_op.hR:N450A:L25_:A Tnote: Texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'R
IB  U450T | E _ C A P T UxR,E Dx_,B Yc(otnhsits )c)h)a r *   a b s l _ n o n n u l l ) 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                                              ^~~~ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2edge_clipping.cc586::183:
:In file included from  ../src/s2/s2edge_clipping.h:warning: 34:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h  :58637 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
L/usr/local/clang/include/absl/log/internal/check_op.h_:I465N:T66E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_X(  i465n | sAeBrStL__oLrO_Ga_sIsNiTgEnR,N AiLn_sDeErFtI_NoEr__MaAsKsEi_gCnH_EChKi_nOtP__iSmTpRlI,N G&_&E,X T&E&R,N (fcaolnsset, vo
i      d| *  ^ 
abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_509n:o52n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
);  509 |           ABSL_INTERNAL_ATTRIBUTIn file included from Es2/s2coords.cc_:C18A:
PIn file included from T../src/s2/s2coords.hU:R108E:
DIn file included from _../src/s2/s2point.hB:Y27(:
tIn file included from h../src/s2/s2coder.hi:s23):
)In file included from ,/usr/local/clang/include/absl/status/status.h : 67 :
 /usr/local/clang/include/absl/status/internal/status_internal.h : 119 : 14 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      119  |      S t a t\u
s      R| e                                                   ^p
* a/usr/local/clang/include/absl/container/internal/common.hb:s32l:_9n:o nnote: nmacro 'ABSL_INTERNAL_IF_false' defined hereu
ll    C32l | o#ndee(f
i      n| e             ^ 
ABS/usr/local/clang/include/absl/base/nullability.hL:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  I241F_false(if_satisf | ied, ...) _#_dVeA_ARGSf_i_n
e      |         ^
 absl_In file included from ns2/s2convex_hull_query.cco:n26n:
uIn file included from l../src/s2/s2convex_hull_query.hl: 27_:
NIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      30| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_In file included from as2/s2coords.ccs:s18i:
gIn file included from n../src/s2/s2coords.h,: 108i:
nIn file included from s../src/s2/s2point.he:r27t:
_In file included from o../src/s2/s2coder.hr:_23a:
sIn file included from s/usr/local/clang/include/absl/status/status.hi:g67n:
_/usr/local/clang/include/absl/status/internal/status_internal.hh:i125n:t14_:i mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, &  &125, |   & &S,t aftaulssRee,p
*       | a  ^b
sl/usr/local/clang/include/absl/container/internal/btree_container.h_:n511o:n52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X' 
Clo  n511e | A n d U n r e f ( 
       A| B             ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
AT  T241R | I#BdUeTfEi_nCeA PaTbUsRlE_Dn_oBnYn(utlhli s_)N)o)n n u l l 
        |                       ^ 
               \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
In file included from    s2/s2coords.cc32: | 18#:
dIn file included from e../src/s2/s2coords.hf:i108n:
eIn file included from  ../src/s2/s2point.hA:B27S:
LIn file included from _../src/s2/s2coder.hI:N23T:
EIn file included from R/usr/local/clang/include/absl/status/status.hN:A67L:
_/usr/local/clang/include/absl/status/internal/status_internal.hI:F128_:f14a:l swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
if_  s128a | t i sSftiaetdu,s R.e.p.*)  a_b_sVlA__nAoRnGnSu_l_l
       C| l        ^o
neAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(in
s      e| r                                                                 ^t
_or_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n ,note:  expanded from macro 'absl_nonnull'i
nse  r241t | _#odre_faisnsei ganb_shli_nnto_ninmuplll,  _&N&o,n n&u&l,l 
f      a| l                     ^s
e,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52:In file included from  s2/s2edge_clipping.cc:note: 18expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2edge_clipping.h:34:
  In file included from 509../src/s2/base/logging.h | : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :A21B:
S/usr/local/clang/include/absl/log/internal/check_op.hL:_465I:N66T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_/usr/local/clang/include/absl/base/nullability.hA:T241T:R22I:B Unote: Texpanded from macro 'absl_nonnull'E
_C  A241P | T#UdReEfDi_nBeY (atbhsils_)n)o,n n u l l   _ N o n n u l l 
        |                       ^ 
     In file included from  s2/s2edge_clipping.cc\:
18      :
| In file included from                                                    ^../src/s2/s2edge_clipping.h
:34:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/base/logging.h32::219:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21   :
32/usr/local/clang/include/absl/log/internal/check_op.h | :#465d:e1f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L465_ | IANBTSELR_NLAOLG__IIFN_TfEaRlNsAeL(_iDfE_FsIaNtEi_sMfAiKeEd_,C H.E.C.K)_ O_P__VSAT_RAIRNGGS__E_X
T      E| R        ^N
(const voIn file included from is2/s2convex_hull_query.ccd:*26 :
aIn file included from b../src/s2/s2convex_hull_query.hs:l27_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h):;30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h^:
67:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::450588::253::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  450 |    588  |      A BxS,L _xI,N TcEoRnNsAtL _cXh(airn*s earbts_lo_rn_oansnsuilgln),
       i| n                        ^s
er/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  _241h | i#ndte_fiimnpel ,a b&s&l,_ n&o&n,n uflall s_eN,o
n      n| u  ^l
l
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 511                     ^:
52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2/s2edge_clipping.cc):)18 :
 In file included from  ../src/s2/s2edge_clipping.h : 34 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 502\:
1      :|                                                     ^warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:31:  9502: |  Anote: Bmacro 'ABSL_INTERNAL_IF_true' defined hereS
L_L   O31G | _#IdNeTfEiRnNeA LA_BCSHLE_CIKN_TOEPR_NIAMLP_LI(FC_htercuke_(EiQf,_ s=a=t)i
s      f| i^e
d,/usr/local/clang/include/absl/log/internal/check_op.h :.488.:.32):  inote: fexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
sat  i488s | f i eidn
l      i| n        ^e
 constexpr const chIn file included from as2/s2convex_hull_query.ccr:*26 :
aIn file included from b../src/s2/s2convex_hull_query.hs:l27_:
nIn file included from u../src/s2/s2loop.hl:l34a:
bIn file included from l../src/s2/mutable_s2shape_index.he: 30n:
aIn file included from m/usr/local/clang/include/absl/container/btree_map.he:#67#:
I/usr/local/clang/include/absl/container/internal/btree_container.hm:p588l:(3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        588  |      A B S L _\I
N      T| E                               ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_257X:(23i:n snote: eexpanded from macro 'absl_nullable'r
t_  o257r | _#adsesfiignne,  aibnssle_rntu_lolra_balses i_gNnu_lhlianbtl_ei
m      p| l                      ^,
 &&, &&, faIn file included from ls2/s2edge_clipping.ccs:e18,:

In file included from       ../src/s2/s2edge_clipping.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~34
:
In file included from ../src/s2/base/logging.h:  21589:
 | In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 502 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ru/usr/local/clang/include/absl/log/internal/check_op.he:,489 :c47o:n snote: texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
ite  r489a | t o r ( h i ncto)n sAtB STL1_&I NvT1E,R NcAoLn_sCtO MTM2A&) ;v
2      ,|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
ons/usr/local/clang/include/absl/container/internal/btree_container.ht: 511c:h47a:r *note:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _511n | o n n u l l   e x p rAtBeSxLt_)I N{T E R N A L\_
A      T| T                                              ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T241E:_22C:A Pnote: Texpanded from macro 'absl_nonnull'U
RE  D241_ | B#Yd(etfhiinse) )a)b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
\
      |                                               ^~~~
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23:/usr/local/clang/include/absl/container/internal/btree_container.h :590note: :expanded from macro 'absl_nullable'3
:   warning: 257 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
defi  n590e |   a bAsBlS_Ln_uIlNlTaEbRlNeA L__NXu(lilnasbelret
_      o| r                      ^_
assign, In file included from is2/s2edge_clipping.ccn:s18e:
rIn file included from t../src/s2/s2edge_clipping.h_:o34r:
_In file included from a../src/s2/base/logging.hs:s21i:
gIn file included from n/usr/local/clang/include/absl/log/check.h_:h37i:
nIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h_:i21m:
p/usr/local/clang/include/absl/log/internal/check_op.hl:,502 :&1&:,  warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
,/usr/local/clang/include/absl/log/internal/check_op.h :t498r:u35e:, 
note:       expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'| 
  ^
  /usr/local/clang/include/absl/container/internal/btree_container.h498: | 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X'i
nt   v5091 | ,   i n t   v 2 ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sAlT_TnRoInBnUuTlEl_ CeAxPpTrUtReExDt_)B Y{( t h i s ) ) ,                    \ 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: \expanded from macro 'absl_nonnull'

      |                                                      ^241
 | #/usr/local/clang/include/absl/container/internal/common.hd:e31f:i9n:e  note: amacro 'ABSL_INTERNAL_IF_true' defined hereb
sl_   n31o | n#nduelfli n_eN oIn file included from Ans2/s2closest_edge_query.ccBn:uS18lL:
l_In file included from 
I../src/s2/s2closest_edge_query.h      N:| T34E                     ^:
R
In file included from N../src/s2/s2closest_edge_query_base.hA:L41_:
IIn file included from F../src/s2/s2cell_union.h_:t29r:
uIn file included from e/usr/local/clang/include/absl/flags/flag.h(i:f_sati40s:
fi/usr/local/clang/include/absl/flags/commandlineflag.he:d163,: 56.:. .warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
if_sa  t163i | s f ibeodo
l       | P        ^a
rseFrom(absl::strIn file included from is2/s2convex_hull_query.ccn:g26_:
vIn file included from i../src/s2/s2convex_hull_query.he:w27 :
vIn file included from a../src/s2/s2loop.hl:u34e:
,In file included from  ../src/s2/mutable_s2shape_index.hs:t30d:
:In file included from :/usr/local/clang/include/absl/container/btree_map.hs:t67r:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:g590*: 3a:b swarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
nonnu  l590l |   e rArBoSrL)_;I
N      T| E                                                       ^R
NAL_/usr/local/clang/include/absl/base/nullability.hX:(241i:n22s:e rnote: texpanded from macro 'absl_nonnull'_
or  _241a | s#sdiegfni,n ei nasbesrlt__noorn_nauslsli g_nN_ohninnutl_li
m      p| l                     ^,
 &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 509s2/s2closest_edge_query.cc::4718::
 In file included from ../src/s2/s2closest_edge_query.hnote: :expanded from macro 'ABSL_INTERNAL_X'34
:
In file included from ../src/s2/s2closest_edge_query_base.h:41  :
509In file included from  | ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
          ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSIn file included from Ls2/s2closest_edge_query.cc_:I18N:
TIn file included from E../src/s2/s2closest_edge_query.hR:N34A:
LIn file included from _../src/s2/s2closest_edge_query_base.hX:(41i:
nIn file included from s../src/s2/s2cell_union.he:r29t:
_In file included from o/usr/local/clang/include/absl/flags/flag.hr:_42a:
sIn file included from s/usr/local/clang/include/absl/flags/internal/flag.hi:g30n:
,/usr/local/clang/include/absl/base/call_once.h :i52n:s24e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_as   In file included from s52s2/s2edge_clipping.cci | :gs18nt:
_dIn file included from h:../src/s2/s2edge_clipping.hi::na34tt:
_oiIn file included from mmi../src/s2/base/logging.hcp:<l21u,i:
 n&In file included from t&/usr/local/clang/include/absl/log/check.h3,:2 37_&t:
&>In file included from ,*/usr/local/clang/include/absl/log/internal/check_impl.h  :ta21rbus:
le_,/usr/local/clang/include/absl/log/internal/check_op.hn
:o      n503| n:  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u1l
l:  C  warning: o593type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n | 
t r o   l W503 o |  rA dB (S 
L _       L|  O                       ^ G _ I
N T E /usr/local/clang/include/absl/base/nullability.htR:rN241uA:eL22_,:C H cEnote: oCexpanded from macro 'absl_nonnull'nK
s_tO  _P241i_ | tI#eMdrPeaLft(ioCrnh(eeh ciaknb_tsN)lE _,An Bo!Sn=Ln)_u
Il      Nl| T^ E_
RNNoA/usr/local/clang/include/absl/log/internal/check_op.hLn:_n488Cu:Ol32Ml:M
 A      note: )| expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL';                     ^


      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
488 |  /usr/local/clang/include/absl/container/internal/btree_container.h :i511n:l47In file included from i:s2/s2closest_edge_query.ccn :e18note:  :
expanded from macro 'ABSL_INTERNAL_X'cIn file included from 
o../src/s2/s2closest_edge_query.hn:s34  t:
511eIn file included from  | x ../src/s2/s2closest_edge_query_base.hp :r 41  :
c In file included from o ../src/s2/s2cell_union.hn :s t29  :
 cIn file included from Ah/usr/local/clang/include/absl/flags/flag.hBa:Sr42L*:
_ In file included from Ia/usr/local/clang/include/absl/flags/internal/flag.hNb:Ts30lE_:
Rn/usr/local/clang/include/absl/base/call_once.hNu:Al53Ll:_a22Ab:Tl Tewarning: R type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In
BaUm   Te53E# | _# CI Am Pp TlaU(bR sE lD :_ :B oY n( ct eh _i fs l) a) g) *     a  b  s  l \_ 
n       o | n                                ^n 
u l /usr/local/clang/include/absl/base/nullability.hl :  257f :l 23a :g )  ;note:  
expanded from macro 'absl_nullable'       
 |                         ^\257

 |       #/usr/local/clang/include/absl/base/nullability.h| d:                                              ^~~~e241
f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull/usr/local/clang/include/absl/container/internal/btree_container.h :e618x:p64r:tIn file included from  es2/s2closest_edge_query.ccwarning: x:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t18
):
 In file included from {../src/s2/s2closest_edge_query.h   :618 34 |  :
  In file included from   ../src/s2/s2closest_edge_query_base.hA\:B
41S      :
L| In file included from _                                              ^../src/s2/s2cell_union.hI
:N29/usr/local/clang/include/absl/base/nullability.hT:
:EIn file included from 241R/usr/local/clang/include/absl/flags/flag.h:N:22A42:L:
 _In file included from note: X/usr/local/clang/include/absl/flags/internal/flag.hexpanded from macro 'absl_nonnull'(:
t30r:
  y/usr/local/clang/include/absl/base/call_once.h241_: | e96#m:dp33el:fa icwarning: netype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e,
  atbrs   yl96__ | en mo pnflnrauicleeln_ di_ mNspotlnd,n: u:claoltn
os      mt| i                      ^c&
<,u ifnatl3s2e_)t;>
*       | a                                                               ^b
sl/usr/local/clang/include/absl/container/internal/btree_container.h_:n596o:n9n:u lnote: lmacro 'ABSL_INTERNAL_X' defined here 
bas  e596_ | i#ndteefrinnael :A:BCSoLn_tIrNoTlEWRoNrAdL(_
X      (| F                                ^u
nc/usr/local/clang/include/absl/base/nullability.h,: 241C:allee,22 :K Qnote: uexpanded from macro 'absl_nonnull'a
l,   241K | V#adleufei,n e. .a.b)s l _ n o n n u l l   _In file included from  Ns2/s2edge_clipping.cc o: n18 n:
 uIn file included from  l../src/s2/s2edge_clipping.h l: 
34       :
 | In file included from                       ^../src/s2/base/logging.h\
:
21      :
| In file included from         ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2closest_edge_query.cc::50318::
1In file included from :../src/s2/s2closest_edge_query.h :34warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_edge_query_base.h:41/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 497../src/s2/s2cell_union.h::3229::
 In file included from /usr/local/clang/include/absl/flags/flag.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'42
:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30  :
497/usr/local/clang/include/absl/base/call_once.h | : 97 :i18n:l iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 c   o97n | s t e x p r  ocnocnes_tf lcahga*r *a basbls_ln_onnunlullalb lfel anga)m;e
#      #| I                 ^m
pl/usr/local/clang/include/absl/base/nullability.h(: 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                               ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l/usr/local/clang/include/absl/container/internal/btree_container.h:l:  618_:note: N3expanded from macro 'absl_nullable'o:
n n  warning: u257passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l | 
l#
d      e|   f                     ^618i
 | n e  AaBbSsLl__InNuTlElRaNbAlLe_ X_(Nturlyl_aebmlpel
a      c| e                      ^,
 try_empIn file included from ls2/s2edge_clipping.cca:c18e:
_In file included from i../src/s2/s2edge_clipping.hm:p34l:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :&37,:
 In file included from f/usr/local/clang/include/absl/log/internal/check_impl.ha:l21s:
e/usr/local/clang/include/absl/log/internal/check_op.h):;503
:      1| :  ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:611/usr/local/clang/include/absl/log/internal/check_op.h::52498:: 35:note:  expanded from macro 'ABSL_INTERNAL_X'note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  611 |    498  |              iIn file included from  ns2/s2closest_edge_query.cctA: B18vS:
1LIn file included from ,_../src/s2/s2closest_edge_query.h I:iN34nT:
tEIn file included from  Rv../src/s2/s2closest_edge_query_base.hN2:A,41L :
_cIn file included from Ao../src/s2/s2cell_union.hTn:Ts29Rt:
I In file included from Bc/usr/local/clang/include/absl/flags/flag.hUh:Ta42Er:
_*In file included from C /usr/local/clang/include/absl/flags/internal/flag.hAa:Pb30Ts:
Ul/usr/local/clang/include/absl/base/call_once.h_R:nE111oD:n_40nB:uY l(warning: lttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] h
eixsp)r)  t,111e  | x vt o) i  d{    L  o  w  L  e  v  e  l  C  a  l  l  O  n  c  e  (\ a
 b       s| \l                                  ^
:
      :| /usr/local/clang/include/absl/base/nullability.ho                                                   ^:n
241c:e22/usr/local/clang/include/absl/container/internal/common.h_::f 32l:note: a9expanded from macro 'absl_nonnull'g:
*    note: a241macro 'ABSL_INTERNAL_IF_false' defined hereb | 
s#ld_e   nf32oi | nn#nedu elaflbi snflel_ anAgoB,nS nLCu_alIllNl Ta_EbNRloNenA&nL&u_ lIflFn
_,      f
| a                           ^l| 
s                                       ^e
(i/usr/local/clang/include/absl/base/nullability.hf:_241s:a22t:i snote: fexpanded from macro 'absl_nonnull'i
ed  ,241  | .#.d.e)f i_n_eV Aa_bAsRlG_Sn_o_n
n      u| l        ^l
 _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true)In file included from ;s2/s2coords.cc
:      18| :
                                                              ^In file included from 
../src/s2/s2coords.h:108/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 596../src/s2/s2point.h::927::
 In file included from ../src/s2/s2coder.hnote: :macro 'ABSL_INTERNAL_X' defined here23
:
In file included from /usr/local/clang/include/absl/status/status.h:  67596:
 | #/usr/local/clang/include/absl/status/internal/status_internal.hd:ef149i:n13e:  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_I  N149T | EcRoNnAsLt_ Xc(hFaurn*c ,a bCsall_lneoen,n uKlQlu aMla,k eKCVhaelcukeF,a i.l.S.t)r i n g ( 
        |              ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
\
        241|  |         ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2closest_edge_query.ccs2/s2coords.cc::1818:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h../src/s2/s2coords.h::34108:
:
In file included from In file included from ../src/s2/s2closest_edge_query_base.h../src/s2/s2point.h::4127:
:
In file included from In file included from ../src/s2/s2cell_union.h../src/s2/s2coder.h::2923:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/status/status.h::42:
In file included from 67/usr/local/clang/include/absl/flags/internal/flag.h:
:30/usr/local/clang/include/absl/status/internal/status_internal.h:
:150/usr/local/clang/include/absl/base/call_once.h::25153:: 41:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |    153  |     c o nCsatl laObnscle:I:mSptla(/usr/local/clang/include/absl/container/internal/btree_container.hst:tu619ds::*3 ::aa btwarning: sopassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]lm_
niocn<n  uu619il | nl t  3sAt2B_aSttLu>_s*,I  NcaTbosEnlR_sNntA oLnc_nhXau(rl*tl ra ybcs_ole_nmntprolnonaluc,le
l,        p| rt                                        ^erf
yi_x/usr/local/clang/include/absl/base/nullability.he:)m;241p
:l      22a| :                        ^c 
enote: _expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.hi
:m241  p:l24122, | : # cdnote: oeexpanded from macro 'absl_nonnull'nf
sit  n 241e& |  ,#a dbtserlfu_ienn)oe;n n
au      lb| sl  ^l 
__nN/usr/local/clang/include/absl/container/internal/btree_container.hoon:nn611nu:ul52ll:l  _
note: N      expanded from macro 'ABSL_INTERNAL_X'o| 
n                     ^n
u  l611l | 
        |                       ^ 
      AIn file included from Bs2/s2coords.ccS:L18_:
IIn file included from N../src/s2/s2coords.hT:E108R:
NIn file included from A../src/s2/s2point.hL:_27A:
TIn file included from T../src/s2/s2coder.hR:I23B:
UIn file included from T/usr/local/clang/include/absl/status/status.hE:_67C:
A/usr/local/clang/include/absl/status/internal/status_internal.hP:T150U:R58E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(thi  s150) | ) ,      c o n s t   a b s l : : S t a t u s *   a b s l\_
n      o| n                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl: 31s:t9a:t unote: smacro 'ABSL_INTERNAL_IF_true' defined here,
 co   n31s | t# dcehfairn*e  aAbBsSlL__nIoNnTnEuRlNlA Lp_rIeFf_itxr)u;e
(      i| f                                                         ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: ,expanded from macro 'absl_nonnull' 
..  .241) |  #idfe_fsiantei safbiseld_
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2closest_edge_query.cc:18:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:41:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]620
:59:   warning: 194 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
nli  n620e |   s tAdB:S:La_tIoNmTiEcR<NuAiLn_tX3(2t_rty>_*e mapblsalc_en,o ntnruyl_le mCpolnatcreo_liWmoprld,( 
&      &| ,                              ^ 
fal/usr/local/clang/include/absl/base/nullability.hs:e241):;22
:       | note:                                                           ^expanded from macro 'absl_nonnull'

  241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d596e:f9i:n enote:  macro 'ABSL_INTERNAL_X' defined herea
bsl  _596n | o#ndneufliln e_ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_X(Func,In file included from  s2/s2closest_edge_query.ccC:a18l:
lIn file included from e../src/s2/s2closest_edge_query.he:,34 :
KIn file included from Q../src/s2/s2closest_edge_query_base.hu:a41l:
,In file included from  ../src/s2/s2cell_union.hK:V29a:
lIn file included from u/usr/local/clang/include/absl/flags/flag.he:,42 :
.In file included from ./usr/local/clang/include/absl/flags/internal/flag.h.:)30 :
 /usr/local/clang/include/absl/base/call_once.h : 195 : 16 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     195  |          o n c\e
_      f| l        ^a
g* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | A/usr/local/clang/include/absl/container/internal/btree_container.hB:S620L:_3L:O Gwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
NTE  R620N | A In file included from L s2/s2closest_edge_query.cc_A:CB18HS:
ELIn file included from C_../src/s2/s2closest_edge_query.hKI:_N34OT:
PEIn file included from _R../src/s2/s2closest_edge_query_base.hIN:MA41PL:
L_In file included from (X../src/s2/s2cell_union.hC(:ht29er:
cyIn file included from k_/usr/local/clang/include/absl/flags/flag.h_eL:mE42p,:
l In file included from a</usr/local/clang/include/absl/flags/internal/flag.hc=:30e):
,
/usr/local/clang/include/absl/base/call_once.h       :t| 200r^:y
40_:e /usr/local/clang/include/absl/log/internal/check_op.hm:warning: p488type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
a32c:e   _200note: i | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'mv
poli,  d  488&L | o& w, L iefnvalelilsnCeea) l;lc
Oo      nn| cs  ^et
(eax/usr/local/clang/include/absl/container/internal/btree_container.hbp:sr611l ::c52:o:on nsnote: ctexpanded from macro 'ABSL_INTERNAL_X'e 
_cfhla  ar611g* | *   a ab bs sl l_ _n nu ol nl naAubBllSleL  _fnIlaNamTgeE,#R #NCIAamLlp_llAa(Tb Tl Re I& B& U  Tf En _, C
 A       P|  T                                       ^ U
 R E/usr/local/clang/include/absl/base/nullability.h D: _241 B: Y22\(:
t       h| note: i                               ^expanded from macro 'absl_nonnull's

))/usr/local/clang/include/absl/base/nullability.h  ,:241 257 |  :# 23d :e  f note: i expanded from macro 'absl_nullable'n 
e     a b257 s |  l# _d ne of ni nn ue l  la  b _s Nl o_ nn\nu
ul      ll| la                                                   ^
b
      l| e/usr/local/clang/include/absl/container/internal/common.h                     ^ :
_32N:u9l:l anote: bmacro 'ABSL_INTERNAL_IF_false' defined herel
e
         | 32                      ^ | 
#define ABSLIn file included from _s2/s2edge_clipping.ccI:N18T:
EIn file included from R../src/s2/s2edge_clipping.hN:A34L:
_In file included from I../src/s2/base/logging.hF:_21f:
aIn file included from l/usr/local/clang/include/absl/log/check.hs:e37(:
iIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.h_:s21a:
t/usr/local/clang/include/absl/log/internal/check_op.hi:s504f:i1e:d, ...) _ _Vwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
AR/usr/local/clang/include/absl/log/internal/check_op.hG:S489_:_47
:       | note:         ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  489 |       const T1& v1, const T2& v2, const char* absl_nonnIn file included from us2/s2convex_hull_query.ccl:l26 :
eIn file included from x../src/s2/s2convex_hull_query.hp:r27t:
eIn file included from x../src/s2/s2loop.ht:)34 :
{In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from \/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621/usr/local/clang/include/absl/base/nullability.h::58241:: 22:warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]note: 
expanded from macro 'absl_nonnull'
    241621 |  | # d eAfBiSnLe_ IaNbTsElR_NnAoLn_nXu(ltlr y__Neomnpnlualcle
,       | t                     ^r
y_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)             In file included from  s2/s2edge_clipping.cc : 18 :
 In file included from  ../src/s2/s2edge_clipping.h : 34 :
\In file included from 
../src/s2/base/logging.h      :| 21        ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^/usr/local/clang/include/absl/container/internal/btree_container.h
:621:/usr/local/clang/include/absl/base/nullability.h3::257 :23warning: : passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
note: expanded from macro 'absl_nullable'
  621   | 257  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_uXl(ltarbyl_ee m_pNlualclea,b lter
y      _| e                      ^m
place_imIn file included from ps2/s2edge_clipping.ccl:,18 :
&In file included from &../src/s2/s2edge_clipping.h,: 34t:
rIn file included from u../src/s2/base/logging.he:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :  ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/btree_container.h::21611:
:/usr/local/clang/include/absl/log/internal/check_op.h52::504 :1note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  611/usr/local/clang/include/absl/log/internal/check_op.h | : 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
  A  B498S | L _ I N T E RiNnAtL _vA1T,T RiInBtU TvE2_,C AcPoTnUsRtE Dc_hBaYr(*t haibss)l)_,no n n u l l   e x p r t e x t )   {                  \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h :\31
:      9| :                                  ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/base/nullability.h
:241:22   :31  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_ltlr u_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)In file included from )s2/s2coords.cc,: 18 :
 In file included from  ../src/s2/s2coords.h : 108 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23          \
      |                                               ^~~~
:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2coder.h622::233:
: /usr/local/clang/include/absl/status/status.h:warning: 732:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]29
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]622
 |     A732B | S L _sItNaTtEiRcN AcLo_nXs(tt rsyt_de:m:psltarcien,g *t rayb_selm_pnloancneu_lhli nEtm_pitmypSlt,r icnogn(s)t; 
&      ,|                              ^f
al/usr/local/clang/include/absl/base/nullability.hs:e241,:
22      :|    ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h:  611241: | 52#:d enote: fexpanded from macro 'ABSL_INTERNAL_X'i
ne   a611b | s l _ n o n n u l l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_ATTRIBUTE_CAPTURED_BYIn file included from (s2/s2coords.cct:h18i:
sIn file included from )../src/s2/s2coords.h):,108 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 /usr/local/clang/include/absl/status/status.h : 733 : 29 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      733  | \ 
       s| t                                                   ^a
ti/usr/local/clang/include/absl/container/internal/common.hc: 32c:o9n:s tnote:  macro 'ABSL_INTERNAL_IF_false' defined heres
td:   :32s | t#rdienfgi*n ea bAsBlS_Ln_oInNnTuElRlN AMLo_vIeFd_FfraolmsSet(riifn_gs(a)t;i
s      f| i                            ^e
d,/usr/local/clang/include/absl/base/nullability.h :.241.:.22):  _note: _expanded from macro 'absl_nonnull'V
A_  A241R | G#Sd_e_f
i      n| e        ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRepIn file included from *s2/s2convex_hull_query.cc :a26b:
sIn file included from l../src/s2/s2convex_hull_query.h_:n27o:
nIn file included from n../src/s2/s2loop.hu:l34l:
 In file included from r../src/s2/mutable_s2shape_index.h):;30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                                                            ^:
67:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h::241624::223::  note: warning: expanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  241 |   #624d | e f iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( t_rNyo_nenmupllla
c      e| ,                     ^ 
try_emplace_hint_iIn file included from ms2/s2coords.ccp:l18,:
 In file included from c../src/s2/s2coords.ho:n108s:
tIn file included from  ../src/s2/s2point.h&:,27 :
tIn file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44:r uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |   ^
  752 | /usr/local/clang/include/absl/container/internal/btree_container.h : 611s:t52a:t inote: cexpanded from macro 'ABSL_INTERNAL_X' 
con  s611t |   s t a t u s _ i n tAeBrSnLa_lI:N:TSEtRaNtAuLs_RAeTpT*R IaBbUsTlE__nCoAnPnTuUlRlE DR_eBpYT(otPhoiisn)t)e,r ( 
        |                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i\n
e       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
_No   n31n | u#ldle
f      i| n                     ^e
 ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_In file included from is2/s2edge_clipping.cct:e18r:
aIn file included from t../src/s2/s2edge_clipping.ho:r34(:
hIn file included from i../src/s2/base/logging.hn:t21):
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:A505L:_1C:O Mwarning: Mtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
);
        | 505                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | 
ABS/usr/local/clang/include/absl/container/internal/btree_container.hL:_611L:O47G:_ Inote: Nexpanded from macro 'ABSL_INTERNAL_X'T
ERN  A611L | _ C H E C K _ O P _ IAMBPSLL(_CIhNeTcEkR_NLATL,_ A<T)T
R      I| B^U
TE/usr/local/clang/include/absl/log/internal/check_op.h_:C488A:P32T:U Rnote: Eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'D
_BY  (488t | h i si)n)l,i n e   c o n s t e x p r   c o n s t   c h a r *   a\b
s      l| _                                              ^~~~n
ullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {   /usr/local/clang/include/absl/container/internal/btree_container.h : 626\:
3      :|                                                ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/base/nullability.h
:241:22:   626 | note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bXs(lt_rnyo_nenmupllla c_eN,o ntnruyl_le
m      p| l                     ^a
ce_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),            In file included from  s2/s2edge_clipping.cc : 18 :
 In file included from  ../src/s2/s2edge_clipping.h : 34 :
 In file included from  ../src/s2/base/logging.h : 21 :
\In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                                   ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/container/internal/common.h21::
32:/usr/local/clang/include/absl/log/internal/check_op.h9::505 :1note: :macro 'ABSL_INTERNAL_IF_false' defined here 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]   
32 | /usr/local/clang/include/absl/log/internal/check_op.h#:d497e:f32i:n enote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'A
BSL_  I497N | T E RiNnAlLi_nIeF _cfoanlsstee(xipfr_ scaotnisstf icehda,r *. .a.b)s l___nVuAl_lAaRbGlSe_ _n
a      m| e        ^#
#Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_noIn file included from ns2/s2convex_hull_query.ccn:u26l:
lIn file included from  ../src/s2/s2convex_hull_query.he:x27p:
rIn file included from t../src/s2/s2loop.he:x34t:
)In file included from  ../src/s2/mutable_s2shape_index.h{: 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 628 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
\
      |                                     ^628
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(ftirnye_ eambpslla_cneo,n nturlyl_ e_mNpolnancuel_lh
i      n| t                     ^_
impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2closest_edge_query.cc :_18N:
oIn file included from n../src/s2/s2closest_edge_query.hn:u34l:
lIn file included from 
../src/s2/s2closest_edge_query_base.h      :| 41                     ^:

In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:110:In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:2934::
 In file included from ../src/s2/base/logging.hwarning: :21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h110: | 21v:
o/usr/local/clang/include/absl/log/internal/check_op.hi:d520 :S13e:t Fwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
g(a  b520s | lc:o:nFslta gc<hTa>r**  aabbssll__nnounlnlualbll ef lCahge,c kcsotnrsIn file included from cts2/s2convex_hull_query.cca :sT26&e:
 cIn file included from vm../src/s2/s2convex_hull_query.h)p: f27{a:

lIn file included from       s../src/s2/s2loop.h| e:                            ^I34
m:
pIn file included from l../src/s2/mutable_s2shape_index.h(:/usr/local/clang/include/absl/base/nullability.h
33:      :
241| In file included from :            ^../src/s2/base/commandlineflags.h22
:: 21:
note: /usr/local/clang/include/absl/base/nullability.hIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/flags/flag.h
257::42  23:
241:In file included from  |  /usr/local/clang/include/absl/flags/internal/flag.h#:note: d30expanded from macro 'absl_nullable'e:

f/usr/local/clang/include/absl/base/call_once.hi:  n52257e: |  24#a:db eswarning: fltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i_
nneo n   an52bus | llsl_t nd_u:Nl:olanatnboulmleil c
_<      Nu| ui                     ^ln
lta3b2l_et
>      *|                        ^a
bsl_In file included from ns2/s2edge_clipping.cco:n18n:
uIn file included from l../src/s2/s2edge_clipping.hl: 34C:
oIn file included from n../src/s2/base/logging.ht:r21o:
lIn file included from W/usr/local/clang/include/absl/log/check.ho:r37d:
(In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                       ^:

/usr/local/clang/include/absl/log/internal/check_op.h:521:/usr/local/clang/include/absl/base/nullability.h17::241 :22warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: In file included from expanded from macro 'absl_nonnull'  s2/s2closest_edge_query.cc
521: | 18   :
241 In file included from  |  ../src/s2/s2closest_edge_query.h# :dc34eo:
fnIn file included from is../src/s2/s2closest_edge_query_base.hnt:e 41 c:
ahIn file included from ba../src/s2/s2cell_union.hsr:l*29_ :
na/usr/local/clang/include/absl/flags/flag.hob:ns118nl:u_29ln:lu  lwarning: _ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Nao
bnlneu   l118sl | 1
v,      o | ic                     ^do
 nSsett Fclhaagr(*In file included from a s2/s2convex_hull_query.ccba:sb26ls:
:lIn file included from :_../src/s2/s2convex_hull_query.hFn:lu27alg:
l<In file included from aT../src/s2/s2loop.hb>:l*34e :
 aIn file included from sb2../src/s2/mutable_s2shape_index.hs,:l
33_      :
n| In file included from o                ^../src/s2/base/commandlineflags.hn
:n21/usr/local/clang/include/absl/base/nullability.hu:
:lIn file included from 257l/usr/local/clang/include/absl/flags/flag.h: :23f42:l:
 aIn file included from note: g/usr/local/clang/include/absl/flags/internal/flag.hexpanded from macro 'absl_nullable',:
 30c  :
o257/usr/local/clang/include/absl/base/call_once.hn | :s#53td: e22Vf:&i  nwarning: vetype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]) 
 a{b   
s53      l | | _                             ^n 
u l /usr/local/clang/include/absl/base/nullability.hla:ab241bs:ll22e:: : _onote: Nnexpanded from macro 'absl_nonnull'uc
lel  _a241fb | ll#aedg
e*      f | ia                      ^nb
es la_bnsoln_nnIn file included from uos2/s2edge_clipping.ccln:ln18 u:
flIn file included from ll../src/s2/s2edge_clipping.ha :g_34)N:
;oIn file included from 
n../src/s2/base/logging.h      n:| u21                     ^l:

lIn file included from 
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h      ::| 37241                     ^:
:
In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
521:47  :241  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n521e |   a b s lc_onnosntn uclhla r_*N oanbnsull_ln
u      l| l                     ^a
ble s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NIn file included from us2/s2coords.ccl:l18a:
bIn file included from l../src/s2/s2coords.he:
108      :
| In file included from                       ^../src/s2/s2point.h
:27:
In file included from In file included from s2/s2convex_hull_query.cc../src/s2/s2coder.h::In file included from 2623s2/s2edge_clipping.cc:
:
:In file included from 18/usr/local/clang/include/absl/status/status.h../src/s2/s2convex_hull_query.h:
::In file included from 103127../src/s2/s2edge_clipping.h::
:42In file included from 34:../src/s2/s2loop.h:
 :In file included from 34warning: ../src/s2/base/logging.h:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:In file included from 
21../src/s2/mutable_s2shape_index.h:
:In file included from 33/usr/local/clang/include/absl/log/check.h:
: In file included from 37:
1031../src/s2/base/commandlineflags.hIn file included from  | :/usr/local/clang/include/absl/log/internal/check_impl.hi21:n:
l21In file included from i:
/usr/local/clang/include/absl/flags/flag.hn:/usr/local/clang/include/absl/log/internal/check_op.he42 ::
c522In file included from o:/usr/local/clang/include/absl/flags/internal/flag.hn17:s:30t :
 warning: /usr/local/clang/include/absl/base/call_once.hstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:t
96a:t33  u:522 s | warning: _ type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i 
n t ecr   no96an | ls :t : fScrthiaaetrnu*ds  Rasebtpsd*l: _:anabotsnolnm_uinlcol<n uneiuxnlptlr3 t2Se_txtat>t)*u; s
a:      b:| sR                ^le
_pnT/usr/local/clang/include/absl/base/nullability.hoo:nP241no:ui22ln:lt  enote: brexpanded from macro 'absl_nonnull'a(
s
e        _| 241i                                         ^ | n
#tdeer/usr/local/clang/include/absl/base/nullability.hfn:ia241nl:e:22 ::aC bonote: snexpanded from macro 'absl_nonnull'lt
_rno  ol241nW | no#urdldel(f 
i_      nN| eo                                ^ n
anbu/usr/local/clang/include/absl/base/nullability.hls:ll241
_:      n22| o:                     ^n 
nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       In file included from os2/s2coords.ccn:c18e:
_In file included from f../src/s2/s2coords.hl:a108g:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nul/usr/local/clang/include/absl/status/status.hl: 1038f:l33a:g )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                  ^
 1038/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :s tnote: aexpanded from macro 'absl_nonnull't
us  _241i | n#tdeefrinnael :a:bSstla_tnuosnRneupl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2coords.cc:18:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:27:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
572 warnings generated.
109 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2edge_crossings.cc -o s2/s2edge_crossings.o
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2edge_distances.cc -o s2/s2edge_distances.o
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2edge_tessellator.cc -o s2/s2edge_tessellator.o
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_365n warningosn generatedn.
ull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2earth.ccs2/s2edge_clipping.cc::1618:
:
In file included from In file included from ../src/s2/s2earth.h../src/s2/s2edge_clipping.h::2439:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2point.h::2824:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/hash/hash.h::2589:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/hash/internal/hash.h::3679:
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/base/casts.h::17234::
27In file included from :/usr/local/clang/include/absl/log/log.h :warning: 209type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h  :17222 | :
iIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hl:i47n:
eIn file included from  /usr/local/clang/include/absl/log/internal/structured_proto.hv:o27i:
dIn file included from  /usr/local/clang/include/absl/log/internal/proto.hS:t34o:
re/usr/local/clang/include/absl/types/span.h3:2733(:v31o:i dwarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl_n  o733n | ncuolnls tpe,x puri nStp3a2n_<tT >v )M a{k
e      S| p                          ^a
n(/usr/local/clang/include/absl/base/nullability.hT:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee fpitnre  AaBbSsLl__AnToTnRnIuBlUlT E__NLoInFnEuTlIlM
E      _| B                     ^O
UND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullableIn file included from 
s2/s2edge_clipping.cc      :| 18                      ^:

In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const voiIn file included from ds2/s2earth.cc*: 16a:
bIn file included from s../src/s2/s2earth.hl:_24n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hp:)25 :
{In file included from 
../src/s2/util/coding/coder.h      :| 36                                   ^:

In file included from ../src/s2/base/casts.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :/usr/local/clang/include/absl/log/log.h22::209 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/log_impl.h
:22  :
241In file included from  | /usr/local/clang/include/absl/log/internal/log_message.h#:d47e:
fIn file included from i/usr/local/clang/include/absl/log/internal/structured_proto.hn:e27 :
aIn file included from b/usr/local/clang/include/absl/log/internal/proto.hs:l34_:
no/usr/local/clang/include/absl/types/span.hn:n739u:l21l:  _warning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnul  l739
 |       S| p                     ^a
n<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_In file included from Ls2/s2edge_clipping.ccI:F18E:
TIn file included from I../src/s2/s2edge_clipping.hM:E39_:
BIn file included from O../src/s2/s2point.hU:N24D:
,In file included from 
/usr/local/clang/include/absl/hash/hash.h      :| 89                    ^:

In file included from /usr/local/clang/include/absl/hash/internal/hash.h:/usr/local/clang/include/absl/base/nullability.h79::
257/usr/local/clang/include/absl/base/internal/endian.h::23180:: 27note: :expanded from macro 'absl_nullable' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #d  e180f | iinnel ianbes lv_oniudl lSatbolree 6_4N(uvloliadb*l ea
b      s| l                      ^_
nonnull p, uIn file included from is2/s2earth.ccn:t166:
4In file included from _../src/s2/s2earth.ht: 24v:
)In file included from  ../src/s2/s1angle.h{:
28      :
| In file included from                           ^../src/s2/s2point.h
:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/util/coding/coder.h241::3622:
:In file included from  ../src/s2/base/casts.hnote: :expanded from macro 'absl_nonnull'34
:
In file included from   /usr/local/clang/include/absl/log/log.h241: | 209#:
dIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.hf:i22n:
eIn file included from  /usr/local/clang/include/absl/log/internal/log_message.ha:b47s:
lIn file included from _/usr/local/clang/include/absl/log/internal/structured_proto.hn:o27n:
nIn file included from u/usr/local/clang/include/absl/log/internal/proto.hl:l34 :
_/usr/local/clang/include/absl/types/span.hN:o740n:n21u:l lwarning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                      ^
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2error.cc -o s2/s2error.o
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2convex_hull_query.cc:26:
In file included from ../src/s2/s2convex_hull_query.h:29:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2edge_clipping.cc:: 18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2edge_clipping.h:  39241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.h_:N94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:

      | /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(voiIn file included from ds2/s2earth.cc*: 16a:
bIn file included from s../src/s2/s2earth.hl_nu:l24l:
aIn file included from b../src/s2/s1angle.hi:l28i:
tIn file included from y../src/s2/s2point.h_:u27n:
kIn file included from n../src/s2/s2coder.ho:w23n:
)In file included from ,/usr/local/clang/include/absl/status/status.h
:      67| :
             ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::25782::
23In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :note: 23expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/crc/crc32c.h:  32257:
 | /usr/local/clang/include/absl/strings/str_format.h#:d469e:f20i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n469u | lilnatb lSeN P_rNiunltlFa(bclhea
r      *|                        ^a
bsl_nonIn file included from ns2/s2edge_clipping.ccu:l18l:
 In file included from o../src/s2/s2edge_clipping.hu:t39p:
uIn file included from t../src/s2/s2point.h,: 27s:
tIn file included from d../src/s2/s2coder.h:::23s:
iIn file included from z/usr/local/clang/include/absl/status/status.he:_67t:
 In file included from s/usr/local/clang/include/absl/status/internal/status_internal.hi:z29e:
,In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                   ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/base/nullability.h31::
241/usr/local/clang/include/absl/synchronization/mutex.h::22489:: 45note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]241
 | #d  e489f | i n e   a b svlo_indo n(n*ualbls l__Nnounlnlualbll
e       | i                     ^n
variant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2edge_clipping.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2edge_clipping.h../src/s2/s2coder.h::3923:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2767:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::2329:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/cord.h::6782:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2923:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/crc/crc32c.h::9432:
:
In file included from /usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::50331::
20/usr/local/clang/include/absl/synchronization/mutex.h:: 490warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]13
: warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]503
 |     490F | o r m a t R avwoSiidn*k (aTb*s la_bnsull_lnaobninluiltly _ruanwk)n o w/n/  aNrOgL)I;N
T      
|                   ^| 
                   ^
/usr/local/clang/include/absl/base/nullability.h:289/usr/local/clang/include/absl/base/nullability.h::34241:: 22note: :expanded from macro 'absl_nullability_unknown' 
note: expanded from macro 'absl_nonnull'  
289 |   #241d | e#fdienfei naeb salb_snlu_lnloanbniullilt y__Nuonnknnuolwln
       _| N                     ^u
ll_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, consIn file included from ts2/s2earth.cc :C16o:
nIn file included from d../src/s2/s2earth.hi:t24i:
oIn file included from n../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
uIn file included from l../src/s2/s2coder.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/status/status.h :c67o:
nIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h,:
29      :
| In file included from                       ^/usr/local/clang/include/absl/strings/cord.h
:82/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2223::
 In file included from note: /usr/local/clang/include/absl/crc/crc32c.hexpanded from macro 'absl_nonnull':
32:
  241/usr/local/clang/include/absl/strings/str_format.h | :#860d:e43f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl_  n860o | n n uflrli e_nNdo nvnouildl 
A      b| s                     ^l
FormatFlIn file included from us2/s2edge_clipping.ccs:h18(:
FIn file included from o../src/s2/s2edge_clipping.hr:m39a:
tIn file included from S../src/s2/s2point.hi:n27k:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
sIn file included from i/usr/local/clang/include/absl/strings/cord.hn:k94,:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                          ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/base/nullability.h562::24158::22 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    562241 |  |  # vdoeifdi nLeo cakbSsllo_wn(oMnunHuolwl  a_bNsoln_nnuolnln
u      l| l                     ^ 
how, const Condition* absl_nullable coIn file included from ns2/s2earth.ccd:,16
:
      In file included from | ../src/s2/s2earth.h                                                         ^:
24:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h257::2823:
:In file included from  ../src/s2/s2point.hnote: :expanded from macro 'absl_nullable'27
:
In file included from ../src/s2/s2coder.h  :25723 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n82u:
lIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:b23l:
eIn file included from  /usr/local/clang/include/absl/crc/crc32c.h_:N32u:
l/usr/local/clang/include/absl/strings/str_format.hl:a867b:l60e:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                      ^

  867 |   explicit FormatSink(In file included from ss2/s2edge_clipping.cct:r18_:
fIn file included from o../src/s2/s2edge_clipping.hr:m39a:
tIn file included from _../src/s2/s2point.hi:n27t:
eIn file included from r../src/s2/s2coder.hn:a23l:
:In file included from :/usr/local/clang/include/absl/status/status.hF:o67r:
mIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.ht:S29i:
nIn file included from k/usr/local/clang/include/absl/strings/cord.hI:m94p:
lIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_565n:o36n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 s)
        565|  |                                                            ^ 
 v/usr/local/clang/include/absl/base/nullability.ho:i241d: 22U:n lnote: oexpanded from macro 'absl_nonnull'c
kS  l241o | w#(dSeyfnicnheW aaibtsPla_rnaomnsn*u lalb s_lN_onnunlullalb
l      e|                       ^w
aitp) ABSL_ATTRIBUTE_COIn file included from Ls2/s2earth.ccD:;16
:
      In file included from | ../src/s2/s2earth.h                                   ^:
24:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::25728::
23In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2coder.h:  23257:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_82n:
uIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/crc/crc32c.h :_32N:
u/usr/local/clang/include/absl/strings/str_format.hl:l869a:b40l:e 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                      ^

  869 |   str_format_internal::FormatSinkImpl* absl_nonnull siIn file included from ns2/s2edge_clipping.cck:_18;:

In file included from       ../src/s2/s2edge_clipping.h| :                                       ^39
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27241:
:In file included from 22../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h | :#29d:
eIn file included from f/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o576n:n49u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non  n576u | l l 
v      o| i                     ^d
 TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2earth.ccs2/s2edge_clipping.cc::1618:
:
In file included from In file included from ../src/s2/s2earth.h../src/s2/s2edge_clipping.h::2439:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2point.h::2827:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2coder.h::2723:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/status/status.h::2367:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/internal/status_internal.h::6729:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/internal/status_internal.h::50129::
52In file included from :/usr/local/clang/include/absl/strings/cord.h :warning: 86type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/cord_analysis.h:32  :50147 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
expli   c32i | ts iCzheu_ntk IGteetrEasttoirm(actoerddM_eimnotreyrUnsaalg:e:(CcoorndsRte pC*o radbRselp_*n oanbnsull_ln otnrneuel)l; 
r      e| p                                                   ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :                                              ^241
:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2earth.ccIn file included from :../src/s2/s2coder.h16::
23In file included from :
../src/s2/s2earth.hIn file included from :/usr/local/clang/include/absl/status/status.h24::
67In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h28::
29In file included from :
../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::27504:
:In file included from 40../src/s2/s2coder.h:: 23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
  In file included from 504/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.he:x86p:
l/usr/local/clang/include/absl/strings/cord_analysis.hi:c50i:t49 :C hwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
kIte   r50a | tsoirz(ec_otn sGte tCMoorrde*P raebcsils_enMoenmnourlylU scaogred()c;o
n      s| t                                       ^ 
Co/usr/local/clang/include/absl/base/nullability.hr:d241R:e22p:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln er eapb)s;l
_      n| o                                                ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _NoIn file included from ns2/s2edge_clipping.ccn:u18l:
lIn file included from 
../src/s2/s2edge_clipping.h      :| 39                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:In file included from 43s2/s2earth.cc:: 16warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2earth.h:24:
In file included from   ../src/s2/s1angle.h507: | 28 :
 In file included from  ../src/s2/s2point.h :v27o:
iIn file included from d../src/s2/s2coder.h :I23n:
iIn file included from t/usr/local/clang/include/absl/status/status.hT:r67e:
eIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hc:o29r:
dIn file included from _/usr/local/clang/include/absl/strings/cord.hi:n86t:
e/usr/local/clang/include/absl/strings/cord_analysis.hr:n56a:l56::: Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
dRep   *56  | asbiszle__nto nGneutlEls ttirmeaet)e;d
F      a| i                                          ^r
Sh/usr/local/clang/include/absl/base/nullability.ha:r241e:22: note: expanded from macro 'absl_nonnull'M
em  o241r | y#Udseafgien(ec oanbsstl _CnoorndnRuelpl*  _aNbosnln_unloln
n      u| l                     ^l
 rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2edge_clipping.ccd:e18f:
iIn file included from n../src/s2/s2edge_clipping.he: 39a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nn/usr/local/clang/include/absl/status/internal/status_internal.hu:l119l:
14      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRIn file included from es2/s2earth.ccp:*16 :
aIn file included from b../src/s2/s2earth.hs:l24_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :C27l:
oIn file included from n../src/s2/s2coder.he:(23
:
      In file included from | /usr/local/clang/include/absl/status/status.h             ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 578#:d45e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s578l | _ n ovnoniudl lB l_oNcokn(nbualsle
_      i| n                     ^t
ernal::PerThreadSynch* absl_nonnull s);In file included from 
s2/s2edge_clipping.cc      :| 18                                            ^:

In file included from ../src/s2/s2edge_clipping.h/usr/local/clang/include/absl/base/nullability.h::39241:
:In file included from 22../src/s2/s2point.h:: 27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
i/usr/local/clang/include/absl/status/internal/status_internal.hn:e125 :a14b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u125l | l   _SNtoantnuuslRle
p      | *                     ^ 
absl_nonnull CloneAIn file included from ns2/s2earth.ccd:U16n:
rIn file included from e../src/s2/s2earth.hf:(24
:
      In file included from | ../src/s2/s1angle.h             ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u580l:l34 :_ Nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l580
 |        |                       ^b
ase_internal::PerThreadSynch* aIn file included from bs2/s2edge_clipping.ccs:l18_:
nIn file included from u../src/s2/s2edge_clipping.hl:l39a:
bIn file included from l../src/s2/s2point.he: 27W:
aIn file included from k../src/s2/s2coder.he:u23p:
(In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                 ^:

/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h128::25714::23 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nullable'
    128257 |  |  # dSetfaitnues Raebps*l _anbuslll_anbolnen u_lNlu lCllaobnleeA
n      d| U                      ^n
ref() cIn file included from os2/s2earth.ccn:s16t:
;In file included from 
../src/s2/s2earth.h      :| 24             ^:

In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_581N:o38n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                        ^581
 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnuIn file included from ls2/s2edge_clipping.ccl: 18f:
uIn file included from n../src/s2/s2edge_clipping.hc:)39(:
vIn file included from o../src/s2/s2point.hi:d27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
ab/usr/local/clang/include/absl/status/internal/status_internal.hi:l149i:t13y:_ uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
nown)  ,149
 |       c| o                   ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln eM aakbesClh_encoknFnauilllS t_rNionngn(u
l      l| 
            ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2earth.ccexpanded from macro 'absl_nonnull':
16:
In file included from   ../src/s2/s2earth.h241: | 24#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
94      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
In file included from s2/s2edge_clipping.cc:18  :
801In file included from  | ../src/s2/s2edge_clipping.h : 39C:
oIn file included from n../src/s2/s2point.hd:i27t:
iIn file included from o../src/s2/s2coder.hn:(23b:
oIn file included from o/usr/local/clang/include/absl/status/status.hl: 67(:
*/usr/local/clang/include/absl/status/internal/status_internal.ha:b150s:l25_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   f150u | n c ) ( vcooinds*t  aabbssll_:n:uSltlaatbuisl*i tayb_suln_knnoonwnnu)l,l
       s| t                                            ^a
tu/usr/local/clang/include/absl/base/nullability.hs:,289 :c34o:n snote: texpanded from macro 'absl_nullability_unknown' 
cha  r289* |  #adbesfli_nneo nanbuslll_ npurlelfaibxi)l;i
t      y| _                        ^u
nk/usr/local/clang/include/absl/base/nullability.hn:o241w:n22 :_ Nnote: uexpanded from macro 'absl_nonnull'l
l_  u241n | s#pdeecfiifniee da
b      s| l                                 ^_
nonnull _NonnullIn file included from 
s2/s2earth.cc      :| 16                     ^:

In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2edge_clipping.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2edge_clipping.h:
:In file included from 39/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/status/status.h:
:/usr/local/clang/include/absl/synchronization/mutex.h67::
802/usr/local/clang/include/absl/status/internal/status_internal.h::19150:: 58warning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  802 |     150  |          c o n s tv oaibds*l :a:bSstla_tnuusl*l aabbislli_tnyo_nunnuklnlo wsnt aatrugs),; 
c      o| n                  ^s
t /usr/local/clang/include/absl/base/nullability.hc:h289a:r34*:  anote: bexpanded from macro 'absl_nullability_unknown's
l_  n289o | n#nduelfli nper eafbisxl)_;n
u      l| l                                                         ^a
bi/usr/local/clang/include/absl/base/nullability.hl:i241t:y22_:u nnote: kexpanded from macro 'absl_nonnull'n
ow  n241  | _#Nduelfli_nuen sapbescli_fnioendn
u      l| l                                 ^ 
_Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2edge_clipping.cc31::
18/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 850../src/s2/s2edge_clipping.h::1639::
 In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from   ../src/s2/s2coder.h850: | 23 :
  /usr/local/clang/include/absl/status/status.h : 725 :c38o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
T* ab  s725l | _ n osntnautlilc  osbtjaetcuts,_
i      n| t               ^e
rn/usr/local/clang/include/absl/base/nullability.ha:l241:::22S:t anote: texpanded from macro 'absl_nonnull'u
sR  e241p | *# daebfsiln_en oanbnsull_ln oPnrneuplalr e_TNooMnonduilfly
(      
|                            ^| 
                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2earth.ccf:i16n:
eIn file included from  ../src/s2/s2earth.ha:b24s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::typIn file included from es2/s2edge_clipping.cc_:i18d:
eIn file included from n../src/s2/s2edge_clipping.ht:i39t:
yIn file included from <../src/s2/s2point.hT:>27::
:In file included from t../src/s2/s2coder.hy:p23e:
:/usr/local/clang/include/absl/status/status.h::*732 :a29b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u732l | l   msettahtoidc) (c)o
n      s| t                                            ^ 
st/usr/local/clang/include/absl/base/nullability.hd::241::s22t:r inote: nexpanded from macro 'absl_nonnull'g
*   a241 | b#sdle_fnionnen ualbls lE_mnpotnynSutlrli n_gN(o)n;n
u      l| l                            ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2earth.ccn:u16l:
lIn file included from 
../src/s2/s2earth.h      :| 24                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2edge_clipping.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1831:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2edge_clipping.h::85539::
34In file included from :../src/s2/s2point.h :warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23  :
855/usr/local/clang/include/absl/status/status.h | : 733 :e29x:p lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
it   C733o | n d isttiaotni(cc ocnosnts tb osotld*: :asbtsrli_nngo*n naublsll _cnoonndn)u;l
l       | M                                 ^o
ve/usr/local/clang/include/absl/base/nullability.hd:F241r:o22m:S tnote: rexpanded from macro 'absl_nonnull'i
ng  (241) | ;#
d      e| f                            ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2/s2edge_clipping.cc:
:In file included from 18/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2edge_clipping.h:
:/usr/local/clang/include/absl/synchronization/mutex.h39::
886In file included from :../src/s2/s2point.h31::27 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h
:23:
  /usr/local/clang/include/absl/status/status.h886: | 751 : 61e:x pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
cit   C751o | n d isttiaotni(cc ounisntt pTt*r _atb sPlo_innotnenruTlolR eopb(js)t
a      t| u                              ^s
_i/usr/local/clang/include/absl/base/nullability.hn:t241e:r22n:a lnote: :expanded from macro 'absl_nonnull':
St  a241t | u#sdReefpi*n ea basbls_ln_onnonnunlull lr )_;N
o      n| n                                                            ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:In file included from 44s2/s2earth.cc:: 16warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2earth.h:24:
In file included from   ../src/s2/s1angle.h752: | 28 :
 In file included from s../src/s2/s2point.ht:a27t:
iIn file included from c../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67s:
tIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.ht:u29s:
_In file included from i/usr/local/clang/include/absl/strings/cord.hn:t94e:
rIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ha:l31::
:/usr/local/clang/include/absl/synchronization/mutex.hS:t896a:t31u:s Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
* a  b896s | l _ neoxnpnluilcli tR eCpoTnodPiotiinotne(rc(o
n      s| t                                           ^ 
T*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #odbejf)i
n      e|                                ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from In file included from s2/s2earth.ccs2/s2edge_clipping.cc::1618:
:
In file included from In file included from ../src/s2/s2earth.h../src/s2/s2edge_clipping.h::2439:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2point.h::2827:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2coder.h::2723:
:
In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/status/status.h23::
1031In file included from :/usr/local/clang/include/absl/status/status.h42::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h: 311031:
 | /usr/local/clang/include/absl/synchronization/mutex.hi:n1242l:i44n:e  warning: ctype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
nst  1242s | t a t u st_ypenaimnet earbnsall::::tSytpaet_uisdReenpt*i tayb<sTl>_:n:otnynpuel*l  aSbtsalt_unsu:l:lRaebpiTloiPtoyi_nutnekrn(o
w      n| 
                                         ^      
|                                            ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241289::2234::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullability_unknown'

  241   | 289# | d#edfeifnien ea basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
 _Null_unspecified
      |                                  ^
In file included from In file included from s2/s2edge_clipping.ccs2/s2earth.cc::1816:
:
In file included from In file included from ../src/s2/s2edge_clipping.h../src/s2/s2earth.h::3924:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2327:
:
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2coder.h1038::2333:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h: 291038:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.ha:t31u:
s/usr/local/clang/include/absl/synchronization/mutex.h_:i1249n:t8e:r nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::S t1249a | t u s R eTp**  aabbssll__nnoonnnnuullll  orbejpe)c {
      |                                 ^t
,
      /usr/local/clang/include/absl/base/nullability.h| :       ^241
:22:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:18:
In file included from ../src/s2/s2edge_clipping.h:39:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | In file included from cs2/s2earth.cco:n16s:
tIn file included from  ../src/s2/s2earth.hc:h24a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from S/usr/local/clang/include/absl/status/status.ht:a67t:
uIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hM:e29s:
sIn file included from a/usr/local/clang/include/absl/strings/cord.hg:e94A:
sIn file included from C/usr/local/clang/include/absl/strings/internal/cordz_info.hS:t31r:
(/usr/local/clang/include/absl/synchronization/mutex.h
:      1259| :            ^14
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:  note: 1259expanded from macro 'absl_nonnull' | 
     241  | c#odnesfti nTe*  aabbssll__nnoonnnnuullll  _oNbojnencutl,l

            | |              ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2edge_clipping.cc28::
28In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2edge_crossings.h27::
41In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s1chord_angle.h23::
31In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2pointutil.h67::
27In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:29../src/s2/util/math/matrix3x3.h:
:/usr/local/clang/include/absl/strings/cord.h276::10615::34 : warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1061 |    276  | v o i d  SC2o_pCyHTEoCAKr_rNaEy(Sdleotw,P aVtThy(pceh(a0r)*)  a<b<s l"_ nCoannn'utl li ndvsetr)s ec.o nDsett;e
r      m| i                                 ^n
an/usr/local/clang/include/absl/base/nullability.ht: 241=: 220:. "note: ;expanded from macro 'absl_nonnull'

      |       ^241
 | #de../src/s2/base/logging.hf:i37n:e21 :a bnote: sexpanded from macro 'S2_CHECK_NE'l
_n   o37n | n#udlelf i_nNeo nSn2u_lClH
E      C| K                     ^_
NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABIn file included from Ss2/s2earth.ccL:_16L:
OIn file included from G../src/s2/s2earth.h_:I24N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hC:H27E:
CIn file included from K../src/s2/s2coder.h_:O23P:
(In file included from C/usr/local/clang/include/absl/status/status.hh:e67c:
kIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:E29,:
 /usr/local/clang/include/absl/strings/cord.h!:=1078,: 33v:a lwarning: 1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 val 11078_ | t e xatb,s lv:a:lc2o,r dv_ailn2t_etrenxatl):
:      C| o  ^r
dRe/usr/local/clang/include/absl/log/internal/check_op.hp:*68 :a22b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
onn   u68l | l   TwahkielRee p((c)o ncsotn scth&a;r
*       | a                                ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dleofgi_nien taebrsnla_ln_ocnhneuclkl_ o_pN_ornensuulllt
        |                       ^ 
       \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2earth.ccnote: :expanded from macro 'absl_nullable'16
:
In file included from   ../src/s2/s2earth.h257: | 24#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:u29l:
l/usr/local/clang/include/absl/strings/cord.ha:b1079l:e33
:       | warning:                       ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2edge_clipping.ccnote: :expanded from macro 'absl_nonnull'28
:
In file included from   ../src/s2/s2edge_crossings.h241: | 41#:
dIn file included from e../src/s2/s1chord_angle.hf:i31n:
eIn file included from  ../src/s2/s2pointutil.ha:b27s:
l../src/s2/util/math/matrix3x3.h_:n276o:n5n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_No../src/s2/base/logging.hn:n37u:l21l:
       | note:                      ^expanded from macro 'S2_CHECK_NE'

   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: In file included from note: s2/s2earth.ccexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL':
16:
In file included from ../src/s2/s2earth.h   :5124 | :
 In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hL:O27G:
_In file included from I../src/s2/s2coder.hN:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.hA:L67_:
CIn file included from H/usr/local/clang/include/absl/status/internal/status_internal.hE:C29K:
_/usr/local/clang/include/absl/strings/cord.hO:P1116(:C37h:e cwarning: ktype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
NE, !=,  v1116a | l 1 ,c ovnal1_tsetx tc,r cv_ailn2t,e rvnaall2:_:tCerxctC)o
r      d| S  ^t
at/usr/local/clang/include/absl/log/internal/check_op.he:*75 :a61b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
ull   a75b | l e  AMBaSyLb_eLGOeGt_CIrNcTCEoRrNdASLt_aCtHeE(C)K (c:o:nasbts;l
:      :| i                                    ^m
pl/usr/local/clang/include/absl/base/nullability.hi:c257i:t23_:c anote: sexpanded from macro 'absl_nullable't
<c  o257n | s#td ecfhianre*  aabbssll__nnuolnlnaubllle> (_ N u l l a\b
l      e| 
                                                            ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2earth.ccl:l16 :
_In file included from N../src/s2/s2earth.ho:n24n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                        In file included from  s2/s2edge_distances.cc : 18 :
 In file included from  ../src/s2/s2edge_distances.h : 27 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h :C37o:
rIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.hR:e21p:
*In file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b40s:
lIn file included from _/usr/local/clang/include/absl/log/internal/nullstream.hn:o37n:
nu/usr/local/clang/include/absl/strings/string_view.hl:l53 :r54e:p ,warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note:    expanded from macro 'absl_nonnull'53
 | c  o241n | s#tdeexfpirn es tarbisnlg__nvoinenwu lNlu l_lNSoanfneuSltlr
i      n| g                     ^V
iew(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullablIn file included from es2/s2earth.cc :_16N:
uIn file included from l../src/s2/s2earth.hl:a24b:
lIn file included from e../src/s2/s1angle.h
:      28| :
                      ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:25:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2earth.cc:16:
In file included from ../src/s2/s2earth.h:25:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_clipping.cc:28:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
380 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2furthest_edge_query.cc -o s2/s2furthest_edge_query.o
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2hausdorff_distance_query.cc -o s2/s2hausdorff_distance_query.o
367 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2latlng_rect_bounder.cc -o s2/s2latlng_rect_bounder.o
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_vIn file included from is2/s2edge_distances.cce:w18 :
NIn file included from u../src/s2/s2edge_distances.hl:l27S:
aIn file included from f../src/s2/base/logging.he:S21t:
rIn file included from i/usr/local/clang/include/absl/log/check.hn:g37V:
iIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hw:(21c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hs:t41 :
cIn file included from h/usr/local/clang/include/absl/log/internal/strip.ha:r26*:
 /usr/local/clang/include/absl/log/internal/log_message.ha:b78s:l26_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abl   e78  | p )  L{o
g      M| e                                                     ^s
sage(co/usr/local/clang/include/absl/base/nullability.hn:s257t: 23c:h anote: rexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bfsill_en,u lilnatb llei n_eN,u
l      l| a                         ^b
le/usr/local/clang/include/absl/base/nullability.h
:      241| :                      ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_In file included from Ds2/s2error.ccE:F16I:
NIn file included from E../src/s2/s2error.h_:M29A:
KIn file included from E/usr/local/clang/include/absl/status/status.h_:C67H:
EIn file included from C/usr/local/clang/include/absl/status/internal/status_internal.hK:_28O:
PIn file included from _/usr/local/clang/include/absl/container/inlined_vector.hS:T56R:
IIn file included from N/usr/local/clang/include/absl/container/internal/inlined_vector.hG:_35E:
XT/usr/local/clang/include/absl/types/span.hE:R212N:(22c:o nwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
 char* a  b212s | l _ nuosninnugl lp)o;i
n      t| e^r
 =/usr/local/clang/include/absl/log/internal/check_op.h :T449*: 31a:b snote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
nul  l449a | b i leixttye_runn ktneomwpnl;a
t      e|                       ^c
onst cha/usr/local/clang/include/absl/base/nullability.hr:*289 :a34b:s lnote: _expanded from macro 'absl_nullability_unknown'n
onn  u289l | l# dMeafkienCeh eacbksOlp_Snturlilnagb(i l i t\y
_      u| n                              ^k
no/usr/local/clang/include/absl/base/nullability.hw:n241 :_22N:u lnote: lexpanded from macro 'absl_nonnull'_
un  s241p | e#cdieffiiende
       a| b                                 ^s
l_nonnull _NonnuIn file included from ls2/s2error.ccl:
16      :
| In file included from                      ^../src/s2/s2error.h
:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2edge_distances.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1828:
:
In file included from In file included from ../src/s2/s2edge_distances.h/usr/local/clang/include/absl/container/inlined_vector.h::2756:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/internal/inlined_vector.h::2135:
:
In file included from /usr/local/clang/include/absl/types/span.h/usr/local/clang/include/absl/log/check.h::21337::
34In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:460:66:   213 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
usi  n460g |  AcBoSnLs_tL_OpGo_iInNtTeErR N=A Lc_oDnEsFtI NTE*_ MaAbKsEl__CnHuElClKa_bOiPl_iStTyR_IuNnGk_nEoXwTnE;R
N      (| c                                 ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 289c:h34a:r *note:  expanded from macro 'absl_nullability_unknown'a
bs  l289_ | n#odnenfuilnle) ;a
b      s| l                                                                 ^_
nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22i:l inote: texpanded from macro 'absl_nonnull'y
_u  n241k | n#odwenf i_nNeu lalb_suln_snpoencniuflile d_
N      o| n                                 ^n
ull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inIn file included from ls2/s2error.cci:n16e:
 In file included from c../src/s2/s2error.ho:n29s:
tIn file included from e/usr/local/clang/include/absl/status/status.hx:p67r:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n28s:
tIn file included from  /usr/local/clang/include/absl/container/inlined_vector.hc:h56a:
rIn file included from */usr/local/clang/include/absl/container/internal/inlined_vector.h :a35b:
sl/usr/local/clang/include/absl/types/span.h_:n733u:l31l:a bwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 name  #733# | Icmopnls(t e x p r   S p a n < T >   M a k e S p\a
n      (| T                               ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:u lnote: lexpanded from macro 'absl_nullable'a
bl  e257  | p#tdre fAiBnSeL _aAbTsTlR_InBuUlTlEa_bLlIeF E_TNIuMlEl_aBbOlUeN
D      ,| 
                      ^      
|                               ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2edge_distances.cc23::18 :
In file included from note: ../src/s2/s2edge_distances.hexpanded from macro 'absl_nullable':
27:
In file included from   ../src/s2/base/logging.h257: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n503u:l1l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 _/usr/local/clang/include/absl/log/internal/check_op.hN:u498l:l35a:b lnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

      |                       ^
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {   In file included from  s2/s2error.cc : 16 :
 In file included from  ../src/s2/s2error.h : 29 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
\In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 28                                  ^:

In file included from /usr/local/clang/include/absl/container/inlined_vector.h/usr/local/clang/include/absl/base/nullability.h::56241:
:In file included from 22/usr/local/clang/include/absl/container/internal/inlined_vector.h:: 35:
note: /usr/local/clang/include/absl/types/span.hexpanded from macro 'absl_nonnull':
739:  21241: |  #warning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
fine   739a | bSspla_nn<oTn>n uMlalk e_SNpoannn(uTl*l 
a      b| s                     ^l
_nIn file included from us2/s2edge_tessellator.ccl:l18a:
bIn file included from l../src/s2/s2edge_tessellator.he: 23b:
eIn file included from g../src/s2/r2.hi:n22 :
AIn file included from B../src/s2/util/math/vector.hS:L36_:
AIn file included from T../src/s2/base/logging.hT:R21I:
BIn file included from U/usr/local/clang/include/absl/log/check.hT:E37_:
LIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hF:E21T:
IIn file included from M/usr/local/clang/include/absl/log/internal/check_op.hE:_41B:
OIn file included from U/usr/local/clang/include/absl/log/internal/strip.hN:D26,:

In file included from       /usr/local/clang/include/absl/log/internal/log_message.h| :                    ^47
:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:/usr/local/clang/include/absl/base/nullability.h27::
257In file included from :/usr/local/clang/include/absl/log/internal/proto.h23::34 :
note: /usr/local/clang/include/absl/types/span.hexpanded from macro 'absl_nullable':
733:31  :257  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin  e733  | acbosnls_tneuxlplra bSlpea n_<NTu>l lMaabkleeS
p      a| n                      ^(
T* absl_nullIn file included from as2/s2error.ccb:l16e:
 In file included from p../src/s2/s2error.ht:r29 :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
AIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hT:R28I:
BIn file included from U/usr/local/clang/include/absl/container/inlined_vector.hT:E56_:
LIn file included from I/usr/local/clang/include/absl/container/internal/inlined_vector.hF:E35T:
I/usr/local/clang/include/absl/types/span.hM:E740_:B21O:U Nwarning: Dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],

      |                               ^  
740 |   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # dTe*f ianbes la_bnsull_lnaublllea belned )_ Nnuolelxacbelpet
       {| 
                      ^      
|                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      | In file included from                       ^s2/s2edge_tessellator.cc
:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable eIn file included from ns2/s2error.ccd:)16 :
nIn file included from o../src/s2/s2error.he:x29c:
eIn file included from p/usr/local/clang/include/absl/status/status.ht: 67{:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                    ^28
:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h/usr/local/clang/include/absl/base/nullability.h::56257:
:In file included from 23/usr/local/clang/include/absl/container/internal/inlined_vector.h:: 35:
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/types/span.h
:794:  8257: |  #warning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
fine   794a | b s l _ nTu*l laabbslle_ n_uNlullalbalbel ep
t      r|                        ^A
BSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:28:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable beginIn file included from 
s2/s2edge_tessellator.cc      :| 18                               ^:

In file included from ../src/s2/s2edge_tessellator.h:/usr/local/clang/include/absl/base/nullability.h23::
257In file included from :../src/s2/r2.h23::22 :
In file included from note: ../src/s2/util/math/vector.hexpanded from macro 'absl_nullable':
36:
In file included from   ../src/s2/base/logging.h257: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from a/usr/local/clang/include/absl/log/internal/strip.hb:l26e:
 In file included from _/usr/local/clang/include/absl/log/internal/log_message.hN:u47l:
lIn file included from a/usr/local/clang/include/absl/log/internal/structured_proto.hb:l27e:

In file included from       /usr/local/clang/include/absl/log/internal/proto.h| :                      ^34
:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794In file included from  | s2/s2error.cc : 16 :
 In file included from T../src/s2/s2error.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:a28b:
lIn file included from e/usr/local/clang/include/absl/container/inlined_vector.h :p56t:
rIn file included from  /usr/local/clang/include/absl/container/internal/inlined_vector.hA:B35S:
L/usr/local/clang/include/absl/types/span.h_:A801T:T32R:I Bwarning: Utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
E_L  I801F | E T I M E _ B O U N D ,   s i z e _ t   s i z e )   n o eTx*c eapbts l{_
n      u| l       ^l
abl/usr/local/clang/include/absl/base/nullability.he: 257e:n23d:)  note: nexpanded from macro 'absl_nullable'o
ex  c257e | p#td e{f
i      n| e                               ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23u:l lnote: aexpanded from macro 'absl_nullable'b
le   257_ | N#udlelfaibnlee 
a      b| s                      ^l
_nIn file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                    In file included from  s2/s2edge_distances.cc : 18 :
 In file included from  ../src/s2/s2edge_distances.h : 27 :
TIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
e/usr/local/clang/include/absl/log/internal/check_op.h :e504n:d1):  nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
xce  p504t |  A{B
S      L| _                               ^L
OG/usr/local/clang/include/absl/base/nullability.h_:I257N:T23E:R Nnote: Aexpanded from macro 'absl_nullable'L
_C  H257E | C#Kd_eOfPi_nIeM PaLb(sClh_encukl_lLaEb,l e< =_)Nu
ul      ll| la^abb
llee
/usr/local/clang/include/absl/log/internal/check_op.h       :_| 488N                      ^:u
32l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
e
        | 488                      ^ | 
  inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, intIn file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inlin e lvionied, 
S      t| o                         ^r
e32(v/usr/local/clang/include/absl/base/nullability.ho:i241d:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_non  n241u | l#ld epf,i nuei natb3s2l__tn ovn)n u{l
l       | _                          ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 | In file included from  s2/s2error.cc :L16o:
gIn file included from M../src/s2/s2error.he:s29s:
aIn file included from g/usr/local/clang/include/absl/status/status.he:(67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
cIn file included from h/usr/local/clang/include/absl/strings/cord.ha:r77*:
 /usr/local/clang/include/absl/base/internal/endian.ha:b266s:l36_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   266f | iilnel,i nien tu ilnitn6e4,_
t       | L                         ^o
ad/usr/local/clang/include/absl/base/nullability.h6:4241(:c22o:n snote: texpanded from macro 'absl_nonnull' 
vo  i241d | *# daebfsiln_en oanbnsull_ln opn)n u{l
l       | _                                   ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2edge_crosser.cc                     ^:18
:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessagIn file included from es2/s2error.cc(:c16o:
nIn file included from s../src/s2/s2error.ht: 29c:
hIn file included from a/usr/local/clang/include/absl/status/status.hr:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n77u:
l/usr/local/clang/include/absl/base/internal/endian.hl: 270f:i27l:e ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nt   l270i | nien,l
i      n| e                         ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d241 :S22t:o rnote: eexpanded from macro 'absl_nonnull'6
4(  v241o | i#dd*e faibnsel _anbosnln_unloln npu,l lu i_nNto6n4n_utl lv
)       | {                     ^

      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const&575  warningvs) generated;.

      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      693|  warning                                                   ^s
 generated.
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2latlng_rect.cc -o s2/s2latlng_rect.o

  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2latlng.cc -o s2/s2latlng.o
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull Mak380e warningCsh generatede.
ckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2lax_loop_shape.cc -o s2/s2lax_loop_shape.o
_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpStIn file included from rs2/s2edge_crossings.cci:n18g:
(In file included from  ../src/s2/s2edge_crossings.h : 34\:

In file included from       ../src/s2/base/logging.h| :                              ^21
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h:  40241:
 | In file included from #/usr/local/clang/include/absl/log/internal/nullstream.hd:e37f:
ine/usr/local/clang/include/absl/strings/string_view.h :a53b:s54l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
null _Nonnu   l53l | 
c      o| n                     ^s
texpr In file included from ss2/s2edge_tessellator.cct:r18i:
nIn file included from g../src/s2/s2edge_tessellator.h_:v23i:
eIn file included from w../src/s2/r2.h :N22u:
lIn file included from l../src/s2/util/math/vector.hS:a36f:
eIn file included from S../src/s2/base/logging.ht:r21i:
nIn file included from g/usr/local/clang/include/absl/log/check.hV:i37e:
wIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 455c:h1a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_450n:u25l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
e   p450) |   {  
        |                                                       ^x
, x, con/usr/local/clang/include/absl/base/nullability.hs:t257 :c23h:a rnote: *expanded from macro 'absl_nullable' 
ab  s257l | _#ndoenfniunlel )a
b      s| l                        ^_
nullable _Nullable/usr/local/clang/include/absl/base/nullability.h
      :| 241                      ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:21:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_In file included from Es2/s2error.ccQ:,16 :
=In file included from =../src/s2/s2error.h):
29      :
| In file included from ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.h::48829::
32In file included from :/usr/local/clang/include/absl/strings/cord.h :82note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from   /usr/local/clang/include/absl/crc/crc32c.h488: | 32 :
 In file included from i/usr/local/clang/include/absl/strings/str_format.hn:l83i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/str_format/arg.h :c36o:
nIn file included from s/usr/local/clang/include/absl/numeric/int128.ht:e41x:
pr/usr/local/clang/include/absl/types/compare.h :c78o:n22s:t  warning: c'enable_if' is a clang extension [-Wgcc-compat]h
ar* a   b78s | l _ n u l l a_b_laet tnraimbeu#t#eI_m_p(l((e n a b l e _ i f ( n   = =   0 ,   " O\n
l      y|                                 ^l
it/usr/local/clang/include/absl/base/nullability.he:r257a:l23 :` 0note: `expanded from macro 'absl_nullable' 
is   257a | l#ldoewfeidn.e" )a)b)s l{_}n
u      l| l                     ^a
ble _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:83:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/arg.h:37:
In file included from /usr/local/clang/include/absl/strings/has_absl_stringify.h:22:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #def  i511n | e caobnsslt_ ncohanrn*u lalb s_lN_onnunlullalb
l      e|                       ^C
heckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureCIn file included from os2/s2edge_tessellator.ccn:s18t:
eIn file included from ../src/s2/s2edge_tessellator.hx:p23r:
(In file included from s../src/s2/r2.h):,22
:
      In file included from | ../src/s2/util/math/vector.h                     ^:
36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int Register/usr/local/clang/include/absl/strings/internal/str_format/bind.hA:n158d:I22n:i twarning: i'enable_if' is a clang extension [-Wgcc-compat]a
lize  (158V | L o g S i t e_*_ aatbtsrli_bnuotnen_u_l(l( evn)a;b
l      e| _                                    ^i
f(V/usr/local/clang/include/absl/base/nullability.ha:l241i:d22F:o rnote: mexpanded from macro 'absl_nonnull'a
tI  m241p | l#<dAerfgisn.e. .a>b(ssl)_,n o"nbnaudl lf o_rNmoantn utlrla
p      "| )                     ^)
)
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_iIn file included from fs2/s2edge_tessellator.cc(:V18a:
lIn file included from i../src/s2/s2edge_tessellator.hd:F23o:
rIn file included from m../src/s2/r2.ha:t22I:
mIn file included from p../src/s2/util/math/vector.hl:<36A:
rIn file included from g../src/s2/base/logging.hs:.22.:
.In file included from >/usr/local/clang/include/absl/log/log.h(:s209):
,In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h":b20a:
dIn file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.hf:o63r:
m/usr/local/clang/include/absl/log/internal/vlog_config.ha:t157 :t11r:a pwarning: "type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
))
        | 157                     ^ | 
VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:23:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2lax_polygon_shape.cc -o s2/s2lax_polygon_shape.o
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const chIn file included from as2/s2edge_crossings.ccr:*18 :
aIn file included from b../src/s2/s2edge_crossings.hs:l34_:
nIn file included from u../src/s2/base/logging.hl:l21a:
bIn file included from l/usr/local/clang/include/absl/log/check.he: 37n:
aIn file included from m/usr/local/clang/include/absl/log/internal/check_impl.he:)21;:

In file included from       /usr/local/clang/include/absl/log/internal/check_op.h| :                                  ^41
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/strip.h::25726::
23:/usr/local/clang/include/absl/log/internal/log_message.h :note: 398expanded from macro 'absl_nullable':
11:   257warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
def  i398n | e   a b svlo_indu*l laabbslle_ n_uNlullalbalbel ec
o      n| s                      ^t
& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from s2/s2edge_crossings.cc/usr/local/clang/include/absl/strings/cord.h::1894:
:
In file included from In file included from ../src/s2/s2edge_crossings.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::3431:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/base/logging.h::54921::
40In file included from :/usr/local/clang/include/absl/log/check.h :warning: 37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
549In file included from  | /usr/local/clang/include/absl/log/internal/check_op.h : 41s:
tIn file included from a/usr/local/clang/include/absl/log/internal/strip.ht:i26c:
 /usr/local/clang/include/absl/log/internal/log_message.hv:o400i:d17 :I nwarning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
eme  n400t | S y n c hcSoenms(tM uvtoeixd**  aabbssll__nnounlnlualbll em uc,o
n      s| t                                       ^&
 v/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257  :24123 | :# dnote: eexpanded from macro 'absl_nullable'f
in  e257  | a#bdself_innoen naublsll __nNuolnlnaubllle
       _| N                     ^u
llable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2edge_crossings.cc::24118::
22In file included from :../src/s2/s2edge_crossings.h :note: 34expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_op.h_:n41o:
nIn file included from n/usr/local/clang/include/absl/log/internal/strip.hu:l26l:
 /usr/local/clang/include/absl/log/internal/log_message.h_:N425o:n31n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  425 |   LogIn file included from Ms2/s2edge_distances.cce:s18s:
aIn file included from g../src/s2/s2edge_distances.he:F29a:
tIn file included from a../src/s2/s1angle.hl:(28c:
oIn file included from n../src/s2/s2point.hs:t27 :
cIn file included from h../src/s2/s2coder.ha:r23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94f:
iIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.he:,31 :
i/usr/local/clang/include/absl/synchronization/mutex.hn:t552 :l64i:n ewarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _552A | T T R I B U T E _ C O L D ; 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241b | a#sdee_fiinntee ranbasll:_:nPoenrnTuhlrle a_dNSoynnncuhl*l 
a      b| s                     ^l
_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2edge_crossings.ccb:s18l:
_In file included from n../src/s2/s2edge_crossings.ho:n34n:
uIn file included from l../src/s2/base/logging.hl: 21_:
NIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMesIn file included from ss2/s2edge_distances.cca:g18e:
FIn file included from a../src/s2/s2edge_distances.ht:a29l:
(In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from  ../src/s2/s2point.hc:h27a:
rIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from f/usr/local/clang/include/absl/strings/cord.hi:l94e:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31t:
 /usr/local/clang/include/absl/synchronization/mutex.hl:i556n:e38,:
       | warning:                               ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:  22556: |   note:  expanded from macro 'absl_nonnull'v
oi  d241  | L#odcekfSilnoew Laobospl(_SnyonncnhuWlali t_PNaornanmusl*l 
a      b| s                     ^l
_nonnull In file included from ws2/s2edge_crossings.cca:i18t:
pIn file included from ,../src/s2/s2edge_crossings.h :i34n:
tIn file included from  ../src/s2/base/logging.hf:l21a:
gIn file included from s/usr/local/clang/include/absl/log/check.h):;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                                     ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::24141::
22In file included from :/usr/local/clang/include/absl/log/internal/strip.h :note: 26expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/log/internal/log_message.h:  427241: | 31#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a427b | s l _ n o n n u l l   _ N o n n u l lc
o      n| s                     ^t
 char* absl_nonnull faIn file included from is2/s2edge_distances.ccl:u18r:
eIn file included from _../src/s2/s2edge_distances.hm:s29g:
)In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hA:T27T:
RIn file included from I../src/s2/s2coder.hB:U23T:
EIn file included from _/usr/local/clang/include/absl/status/status.hC:O67L:
DIn file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                              ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h94::
241In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
558:  35241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fi  n558e |   a bbsolo_ln oLnoncuklSll o_wNWointnhuDlela
d      l| i                     ^n
e(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:In file included from 34s2/s2edge_distances.cc:
:In file included from 18../src/s2/base/logging.h:
:In file included from 21../src/s2/s2edge_distances.h:
:In file included from 29/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26/usr/local/clang/include/absl/status/status.h:
:/usr/local/clang/include/absl/log/internal/log_message.h67::
436In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h36::29 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :43631 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :L559o:g46M:e swarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
geD  e559b | u g F a t a l ( c o n s t   c h a r *   a b s l _ n o n ncuolnls tf iCloen,d
i      t| i                                   ^o
n*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dceofnidn,e
       a| b                                             ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'_
No  n257n | u#ldle
f      i| n                     ^e
 absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2edge_crossings.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2edge_crossings.h/usr/local/clang/include/absl/status/status.h::3467:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::3794:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::56241::
23In file included from :/usr/local/clang/include/absl/log/internal/strip.h :warning: 26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/log/internal/log_message.h:446:43  :562  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
voi  d446  | L o cLkoSglMoews(sMaugHeoQwu iaebtslly_DneobnunguFlalt ahlo(wc,o ncsotn scth aCro*n daibtsilo_nn*o nanbuslll_ nfuilllea,b
l      e|                                            ^c
on/usr/local/clang/include/absl/base/nullability.hd:,241
:      22| :                      ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   voidIn file included from  s2/s2edge_crossings.ccL:o18c:
kIn file included from S../src/s2/s2edge_crossings.hl:o34w:
(In file included from M../src/s2/base/logging.hu:H21o:
wIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41 :
hIn file included from o/usr/local/clang/include/absl/log/internal/strip.hw:,26 :
c/usr/local/clang/include/absl/log/internal/log_message.ho:n454s:t38 :C owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
iti  o454n | *   aLbosglM_ensuslalgaebQluei ectolnydF,a
t      a| l                                                         ^(
co/usr/local/clang/include/absl/base/nullability.hn:s257t: 23c:h anote: rexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bfsill_en,u
l      l| a                                     ^b
le/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        241|  |                       ^#
define absl_nonnull _NonnullIn file included from 
s2/s2edge_distances.cc      :| 18                     ^:

In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2edge_crossings.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1831:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2edge_crossings.h::56534::
36In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 565/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
vIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hi:d41 :
UIn file included from n/usr/local/clang/include/absl/log/internal/strip.hl:o26c:
k/usr/local/clang/include/absl/log/internal/log_message.hS:l456o:w38(:S ywarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
hWa  i456t | P a rLaomgsM*e sasbasgle_QnuuileltalbylFea twaali(tcpo)n sAtB ScLh_aArT*T RaIbBsUlT_En_oCnOnLuDl;l
       f| i                                   ^l
e,/usr/local/clang/include/absl/base/nullability.h :i257n:t23 :l inote: nexpanded from macro 'absl_nullable'e
,
        257|  |                                      ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#adbelfei n_eN ualblsalb_lneo
n      n| u                      ^l
l _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2edge_distances.cc457: | 18 :
 In file included from  ../src/s2/s2edge_distances.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
cIn file included from h/usr/local/clang/include/absl/strings/cord.ha:r94*:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o576n:n49u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ailu  r576e | _ m svgo)i
d       | T                                     ^r
yR/usr/local/clang/include/absl/base/nullability.he:m241o:v22e:( bnote: aexpanded from macro 'absl_nonnull's
e_  i241n | t#edrenfailn:e: PaebrsTlh_rneoandnSuylnlc h_*N oanbnsull_ln
o      n| n                     ^u
ll s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* abIn file included from ss2/s2edge_crossings.ccl:_18n:
oIn file included from n../src/s2/s2edge_crossings.hn:u34l:
lIn file included from  ../src/s2/base/logging.hw:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                     ^37
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22:/usr/local/clang/include/absl/log/internal/check_op.h :note: 180expanded from macro 'absl_nonnull':
42:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n180e |  AaBbSsLl__AnToTnRnIuBlUlT E__NPoUnRnEu_lFlU
      |                      ^
NCTION const char* absl_nonnuIn file included from ls2/s2edge_distances.ccl: 18M:
aIn file included from k../src/s2/s2edge_distances.he:C29h:
eIn file included from c../src/s2/s1angle.hk:F28a:
iIn file included from l../src/s2/s2point.hS:t27r:
iIn file included from n../src/s2/s2coder.hg:(23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                         ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31241:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d585e:f20i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n585o | n n uvloli d_ NTornannusl(lM
u      H| o                     ^w
 absl_nonnIn file included from us2/s2edge_crossings.ccl:l18 :
hIn file included from o../src/s2/s2edge_crossings.hw:)34;:
 In file included from  ../src/s2/base/logging.h/:/21 :
uIn file included from s/usr/local/clang/include/absl/log/check.he:d37 :
fIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr: 21C:
o/usr/local/clang/include/absl/log/internal/check_op.hn:d181V:a25r:- >warning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
tex   181t | r a n s fceorn
s      t|                     ^a
bs/usr/local/clang/include/absl/base/nullability.hl::241::S22t:a tnote: uexpanded from macro 'absl_nonnull's
*   a241b | s#ld_enfoinnneu lalb sslt_antounsn,u lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull prefix);
      |                         ^In file included from 
s2/s2edge_distances.cc:/usr/local/clang/include/absl/base/nullability.h18::
241In file included from :../src/s2/s2edge_distances.h22::29 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s1angle.h
:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :_94N:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h
:      586| :                     ^43
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 | In file included from  s2/s2edge_crossings.cc :v18o:
iIn file included from d../src/s2/s2edge_crossings.h :F34e:
rIn file included from (../src/s2/base/logging.hb:a21s:
eIn file included from _/usr/local/clang/include/absl/log/check.hi:n37t:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hn:a21l:
:/usr/local/clang/include/absl/log/internal/check_op.h::P181e:r58T:h rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
dSy  n181c | h *   a bcsoln_snto nanbuslll:
:      S| t                                          ^a
tu/usr/local/clang/include/absl/base/nullability.hs:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld esftianteu sa,b sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2edge_distances.cc22::18 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2edge_distances.h
:29  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit MuIn file included from ts2/s2edge_crossings.cce:x18(:
cIn file included from o../src/s2/s2edge_crossings.hn:s34t:
 In file included from v../src/s2/base/logging.ho:l21a:
tIn file included from i/usr/local/clang/include/absl/log/check.hl:e37 :
MIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.ht:e21x:
*/usr/local/clang/include/absl/log/internal/check_op.h :a189b:s28l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
labl  e189  | /i*nilginnoer ecdo*n/s)t  {a}b
s      l| :                                       ^:
St/usr/local/clang/include/absl/base/nullability.ha:t257u:s23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli nAes Satbastlu_sn(uclolnasbtl ea b_sNlu:l:lSatbalteu
s      &|                        ^s
) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   eIn file included from xs2/s2edge_crossings.ccp:l18i:
cIn file included from i../src/s2/s2edge_crossings.ht: 34M:
uIn file included from t../src/s2/base/logging.he:x21L:
oIn file included from c/usr/local/clang/include/absl/log/check.hk:(37M:
uIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.he:x21&:
 /usr/local/clang/include/absl/log/internal/check_op.hm:u226 :A59B:S Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
NTER  N226A | Lv_oAiTdT RMIaBkUeTCEh_eCcAkPOTpUVRaElDu_eBSYt(rtihnigs()s)t
d      :| :                                                                   ^~~~o
stream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::635257::2923::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

  257   | 635# | d e feixnpel iacbistl _MnuutlelxaLbolcek (_MNuutlelxa*b laeb
s      l| _                      ^n
onnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu In file included from As2/s2edge_crossings.ccB:S18L:
_In file included from I../src/s2/s2edge_crossings.hN:T34E:
RIn file included from N../src/s2/base/logging.hA:L21_:
AIn file included from T/usr/local/clang/include/absl/log/check.hT:R37I:
BIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hT:E21_:
C/usr/local/clang/include/absl/log/internal/check_op.hA:P276T:U13R:E Dwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B
Y(t  h276i | sc)o,n
s      t|                                                                     ^~~~v
oid* absl_nullable operator<<(std::os/usr/local/clang/include/absl/synchronization/mutex.ht:r649e:a29m:& ,warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|             ^
  649/usr/local/clang/include/absl/base/nullability.h | : 257 :e23x:p lnote: iexpanded from macro 'absl_nullable'c
it   257M | u#tdeexfLioncek (aMbustle_xn*u lalbasbll_en o_nNnuulllla bmlue,
       c| o                      ^n
st ConditiIn file included from os2/s2edge_crossings.ccn:&18 :
cIn file included from o../src/s2/s2edge_crossings.hn:d34):

In file included from       ../src/s2/base/logging.h| :                            ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:277:50:   241 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n277e |   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
           const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTIn file included from Es2/s2edge_crossings.ccR:N18A:
LIn file included from _../src/s2/s2edge_crossings.hA:T34T:
RIn file included from I../src/s2/base/logging.hB:U21T:
EIn file included from _/usr/local/clang/include/absl/log/check.hC:A37P:
TIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hR:E21D:
_/usr/local/clang/include/absl/log/internal/check_op.hB:Y292(:t13h:i swarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |                                                                          ^~~~
  292 | const char* absl_nonnull operator<<(s/usr/local/clang/include/absl/synchronization/mutex.ht:d678:::35b:a swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
_ost  r678e | a m <ecxhpalri,c iTtr aRietasd>e&r,M
u      t| e            ^x
Lo/usr/local/clang/include/absl/base/nullability.hc:k241(:M22u:t enote: xexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bmsul)_ nAoBnSnLu_lSlH A_RNEoDn_nLuOlClK
_      F| U                     ^N
CTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2edge_crossings.cc241::1822:
:In file included from  ../src/s2/s2edge_crossings.hnote: :expanded from macro 'absl_nonnull'34
:
In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_293n:o49n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o293n | n u l l 
        |                       ^ 
                            const chIn file included from as2/s2edge_distances.ccr:*18 :
aIn file included from b../src/s2/s2edge_distances.hs:l29_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h):;27
:
      In file included from | ../src/s2/s2coder.h                                                ^:
23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
In file included from   /usr/local/clang/include/absl/strings/cord.h241: | 94#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hf:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a681b:s74l:_ nwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
null   _681N | o n neuxlpll
i      c| i                     ^t
 ReaderMutexLock(Mutex& In file included from ms2/s2edge_crossings.ccu: 18A:
BIn file included from S../src/s2/s2edge_crossings.hL:_34I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:A37T:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:B21U:
T/usr/local/clang/include/absl/log/internal/check_op.hE:_295C:A20P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_BY  (295t | hciosn)s,t
       s| i                                                                         ^~~~g
ned char* absl_nonnull operator<<(st/usr/local/clang/include/absl/synchronization/mutex.hd::689::b35a:s iwarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ostr  e689a | m < cehxaprl,i cTirta iRtesa>d&e,r
M      u| t                   ^e
xL/usr/local/clang/include/absl/base/nullability.ho:c241k:(22M:u tnote: eexpanded from macro 'absl_nonnull'x
*   a241b | s#ld_enfoinnneu lalb smlu_,n ocnonnusltl  C_oNnodnintuiloln
&       | c                     ^o
nd)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2edge_crossings.cc
:18  :
241In file included from  | ../src/s2/s2edge_crossings.h#:d34e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 296_:N63o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^296
 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2edge_distances.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2edge_distances.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2edge_crossings.cc710: | 18 :
 In file included from e../src/s2/s2edge_crossings.hx:p34l:
iIn file included from c../src/s2/base/logging.hi:t21 :
WIn file included from r/usr/local/clang/include/absl/log/check.hi:t37e:
rIn file included from M/usr/local/clang/include/absl/log/internal/check_impl.hu:t21e:
x/usr/local/clang/include/absl/log/internal/check_op.hL:o299c:k67(:M uwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
x& m  u299  | A B S L _ I N T E R N A L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) 
        |                                                                           ^~~~c
onst unsigned char* absl_nonnull);
/usr/local/clang/include/absl/synchronization/mutex.h      :| 718                                                                  ^:
35:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'718
 |     241e | x#pdleifciinte  Warbistle_rnMountneuxlLlo c_kN(oMnuntuelxl*
       a| b                     ^s
l_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTUREIn file included from Ds2/s2edge_crossings.cc_:B18Y:
(In file included from t../src/s2/s2edge_crossings.hh:i34s:
)In file included from ,../src/s2/base/logging.h
:      21| :
                                                                         ^~~~In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void A/usr/local/clang/include/absl/synchronization/mutex.hb:s731l:F35o:r mwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
Flus  h731( | S t reixnpgliifcyiSti nWkr*i taebrsMlu_tneoxnLnouclkl( Msuitnekx,*
       a| b                                             ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'm
u,   241c | o#ndsetf iCnoen daibtsilo_nn&o ncnounldl) 
_      N| o                                  ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |    In file included from  s2/s2edge_crossings.cc : 18 :
 In file included from  ../src/s2/s2edge_crossings.h : 34 :
vIn file included from o../src/s2/base/logging.hi:d21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
a/usr/local/clang/include/absl/log/internal/check_op.hb:i428l:i44t:y _warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
know  n428  | aArBgS)L;_
A      T| T                  ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T289E:_34R:E Tnote: Uexpanded from macro 'absl_nullability_unknown'R
NS_  N289O | N#NdUeLfLi nceo nasbts lc_hnaurl*l aabbislli_tnyo_nunnuklnlo wMna k_eNCuhlelc_kuOnpsSpterciinfgi(e
d      
|                                                  ^| 
                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2edge_distances.ccu:l18l:
 In file included from _../src/s2/s2edge_distances.hN:o29n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2edge_crossings.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2edge_crossings.h:
:In file included from 34/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/base/logging.h:
:/usr/local/clang/include/absl/synchronization/mutex.h21::
814In file included from :/usr/local/clang/include/absl/log/check.h20::37 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :814429 | : 31 :C owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
iti  o429n | ( b o o lT 1( *va1b,s lT_2n ovn2n,u lclo nfsutn cc)h(aTr**  aabbssll__nnuolnlnaublill ietxyp_rutnekxnto)w nA)B,S
L      _| A                   ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B241U:T22E:_ Nnote: Oexpanded from macro 'absl_nonnull'I
NL  I241N | E#;d
e      f| i                              ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnIn file included from us2/s2edge_distances.ccl:l18 :
_In file included from N../src/s2/s2edge_distances.ho:n29n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   CoIn file included from ns2/s2edge_crossings.ccd:i18t:
iIn file included from o../src/s2/s2edge_crossings.hn:(34b:
oIn file included from o../src/s2/base/logging.hl: 21(:
*In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l432 :f13u:n cwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
T*   a432b | sclo_nnsutl lcahbairl*i tayb_suln_knnoonwnnu)l,l
       M| a                                         ^k
eC/usr/local/clang/include/absl/base/nullability.hh:e289c:k34O:p Snote: texpanded from macro 'absl_nullability_unknown'r
ing  (289T | 1# dve1f,i nTe2  avb2s,l
_      n| u            ^l
la/usr/local/clang/include/absl/base/nullability.hb:i241l:i22t:y _note: uexpanded from macro 'absl_nonnull'n
kn  o241w | n# d_eNfuilnle_ uanbssple_cniofnineudl
l       | _                                 ^N
onnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from In file included from s2/s2edge_crossings.cc../src/s2/s2edge_distances.h::1829:
:
In file included from In file included from ../src/s2/s2edge_crossings.h../src/s2/s1angle.h::3428:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2point.h::2127:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2coder.h::3723:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/status.h::2167:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h433::2956:
:In file included from  /usr/local/clang/include/absl/strings/cord.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31433:
 | /usr/local/clang/include/absl/synchronization/mutex.h : 815 : 16 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      815  |                          T *   a b s l _ n u l l a b i l ictoyn_sutn kcnhoawrn*  aarbgs)l;_
n      o| n               ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 289e:x34p:r tnote: eexpanded from macro 'absl_nullability_unknown'x
t)   289{ | 
#      d| e                                                       ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | i#ldietfyi_nuen kanboswln_ n_oNnunlull_lu n_sNpoencniuflile
d      
|                            ^| 
                                 ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2edge_crossings.cc                     ^:
18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from In file included from s2/s2edge_distances.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2edge_distances.h/usr/local/clang/include/absl/log/check.h::2937:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_impl.h::2821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.h::45127::
1In file included from :../src/s2/s2coder.h :warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67  :
451In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hL:O94G:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A830L:_36D:E Fwarning: Itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
E_M  A830K | E _ C H E C Kb_oOoPl_ S(T*RaIbNsGl__EnXoTnEnRuNl(lb ofouln)c;)
(      T| *^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l449_:n31u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
ili  t449y | _ u nekxntoewrnn) ,t
e      m| p                                   ^l
at/usr/local/clang/include/absl/base/nullability.he: 289c:o34n:s tnote:  expanded from macro 'absl_nullability_unknown'c
ha  r289* |  #adbesfli_nneo nanbuslll_ nMualkleaCbhielciktOyp_Sutnrkinnogw(n   _ N\u
l      l| _                              ^u
ns/usr/local/clang/include/absl/base/nullability.hp:e241c:i22f:i enote: dexpanded from macro 'absl_nonnull'

      |                                    ^241
 | #define absl_nonnull _NoIn file included from ns2/s2edge_distances.ccn:u18l:
lIn file included from 
../src/s2/s2edge_distances.h      :| 29                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2edge_crossings.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2edge_crossings.h::6734:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::9437:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::831451::461::  warning: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:  450831: | 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
 t  y450p | e n a m e   axb,s lx:,: tcyopnes_ti dcehnatri*t ya<bTs>l:_:ntoynpneu*l la)b
s      l| _                        ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:i22l:i tnote: yexpanded from macro 'absl_nonnull'_
un  k241n | o#wdne
f      i| n                                             ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s289l:_34n:o nnote: nexpanded from macro 'absl_nullability_unknown'u
ll   _289N | o#ndneufliln
e       | a                     ^b
sl_nullability_unknown _Null_unIn file included from ss2/s2edge_crossings.ccp:e18c:
iIn file included from f../src/s2/s2edge_crossings.hi:e34d:

In file included from       ../src/s2/base/logging.h| :                                 ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOGIn file included from _s2/s2edge_distances.ccI:N18T:
EIn file included from R../src/s2/s2edge_distances.hN:A29L:
_In file included from D../src/s2/s1angle.hE:F28I:
NIn file included from E../src/s2/s2point.h_:M27A:
KIn file included from E../src/s2/s2coder.h_:C23H:
EIn file included from C/usr/local/clang/include/absl/status/status.hK:_67O:
PIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hS:T29R:
IIn file included from N/usr/local/clang/include/absl/strings/cord.hG:_94E:
XIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hE:R31N:
(/usr/local/clang/include/absl/synchronization/mutex.hi:n844t:6104:_ twarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |   ^844
 |  /usr/local/clang/include/absl/log/internal/check_op.h : 449 : 31 :T *note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
bsl  _449n | o n neuxltle ronb jteecmtp,l
a      t| e         ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bMsalk_enCohnencuklOlp S_tNroinnngu(l l 
       \| 
                     ^      
|                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2edge_distances.cc :a18b:
sIn file included from l../src/s2/s2edge_distances.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2edge_crossings.cc/usr/local/clang/include/absl/synchronization/mutex.h::18845:
:In file included from 45../src/s2/s2edge_crossings.h:: 34warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
  In file included from 845/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21b:
o/usr/local/clang/include/absl/log/internal/check_op.ho:l452 :(1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:t/usr/local/clang/include/absl/log/internal/check_op.hy:p450e:_25i:d enote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't
it  y450< | T > : : t y pxe,: :x*,  acbosnls_tn ocnhnaurl*l  ambestlh_ondo)n(n)u)l;l
)      
|                                                   ^| 
                        ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from In file included from s2/s2edge_distances.ccs2/s2edge_crossings.cc::1818:
:
In file included from In file included from ../src/s2/s2edge_distances.h../src/s2/s2edge_crossings.h::2934:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/base/logging.h::2821:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/check.h::2737:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::45367::
1In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
453In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:L850O:G16_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L850_ | D E F I N E _cMoAnKsEt_ CTH*E CaKb_sOlP__nSoTnRnIuNlGl_ EoXbTjEeRcNt(,u
i      n| t               ^6
4_/usr/local/clang/include/absl/base/nullability.ht:)241;:
22      :|  ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:449  :24131 | :# dnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'f
ine   449a | b s le_xntoenrnnu ltle m_pNloantneu lclo
n      s| t                     ^ 
char* absl_nonnull In file included from Ms2/s2edge_distances.cca:k18e:
CIn file included from h../src/s2/s2edge_distances.he:c29k:
OIn file included from p../src/s2/s1angle.hS:t28r:
iIn file included from n../src/s2/s2point.hg:(27 :
 In file included from  ../src/s2/s2coder.h\:
23      :
| In file included from                               ^/usr/local/clang/include/absl/status/status.h
:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i851n:e45 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n851u | l l   _ N o nbnouolll 
(      a| b                     ^s
l::type_idIn file included from es2/s2edge_crossings.ccn:t18i:
tIn file included from y../src/s2/s2edge_crossings.h<:T34>:
:In file included from :../src/s2/base/logging.ht:y21p:
eIn file included from :/usr/local/clang/include/absl/log/check.h::*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n453n:u1l:l  warning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
th/usr/local/clang/include/absl/log/internal/check_op.ho:d450):(25):
       note: | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'                                            ^

  /usr/local/clang/include/absl/base/nullability.h450: | 241 : 22 :   note:  expanded from macro 'absl_nonnull'x
,   x241, |  #cdoenfsitn ec haabrs*l _anbosnln_unloln n_uNloln)n
u      l| l                        ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2edge_distances.ccl: 18_:
NIn file included from o../src/s2/s2edge_distances.hn:n29u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855In file included from :s2/s2edge_crossings.cc34::18 :
In file included from warning: ../src/s2/s2edge_crossings.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
34:
In file included from ../src/s2/base/logging.h  :85521 | :
 In file included from  /usr/local/clang/include/absl/log/check.he:x37p:
lIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hc:i21t:
 /usr/local/clang/include/absl/log/internal/check_op.hC:o454n:d1i:t iwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
(co  n454s | tA BbSoLo_lL*O Ga_bIsNlT_EnRoNnAnLu_lDlE FcIoNnEd_)M;A
K      E| _                                 ^C
HE/usr/local/clang/include/absl/base/nullability.hC:K241_:O22P:_ Snote: Texpanded from macro 'absl_nonnull'R
IN  G241_ | E#XdTeEfRiNn(ef laobastl)_;n
o      n| n^u
ll/usr/local/clang/include/absl/log/internal/check_op.h :_449N:o31n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l

      |                        ^449
 |   extern template const char* absl_nonnull MakeCheckOpStrIn file included from is2/s2edge_distances.ccn:g18(:
 In file included from  ../src/s2/s2edge_distances.h :\29
:
      In file included from | ../src/s2/s1angle.h                              ^:
28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u886l:l31 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l886
 |        |                       ^e
xpliciIn file included from ts2/s2edge_crossings.cc :C18o:
nIn file included from d../src/s2/s2edge_crossings.hi:t34i:
oIn file included from n../src/s2/base/logging.h(:c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37T:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n454o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
o/usr/local/clang/include/absl/log/internal/check_op.hb:j450):
25      :|                                ^
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/base/nullability.h
:241:  22450: |   note:  expanded from macro 'absl_nonnull' 
     241x | ,# dxe,f icnoen satb sclh_anro*n naublsll __nNoonnnnuullll)

            | |                      ^                        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37In file included from :
s2/s2edge_distances.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h18::
21In file included from :
../src/s2/s2edge_distances.h/usr/local/clang/include/absl/log/internal/check_op.h::29455:
:In file included from 1../src/s2/s1angle.h:: 28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
  In file included from 455../src/s2/s2coder.h | :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:L67O:
GIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hI:N29T:
EIn file included from R/usr/local/clang/include/absl/strings/cord.hN:A94L:
_In file included from D/usr/local/clang/include/absl/strings/internal/cordz_info.hE:F31I:
N/usr/local/clang/include/absl/synchronization/mutex.hE:_896M:A31K:E _warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]H
ECK  _896O | P _ SeTxRpIlNiGc_iEtX TCEoRnNd(idtoiuobnl(ec)o;n
s      t|  ^T
* /usr/local/clang/include/absl/log/internal/check_op.ha:b449s:l31_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
ull   449o | b j )e
x      t| e                              ^r
n /usr/local/clang/include/absl/base/nullability.ht:e241m:p22l:a tnote: eexpanded from macro 'absl_nonnull' 
co  n241s | t# dcehfairn*e  aabbssll__nnoonnnnuullll  M_aNkoenCnhuelclk
O      p| S                     ^t
ring(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2edge_distances.ccn:u18l:
lIn file included from 
../src/s2/s2edge_distances.h      :| 29                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2edge_crossings.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2edge_crossings.h/usr/local/clang/include/absl/status/status.h::3467:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::3794:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::455922::148::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:450:  25922: |   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
ta  t450i | c   b o o l  xG,u axr,a nctoenesdtE qcuhaalr(*c oanbsstl _Cnoonndniutlilo)n
*       | a                        ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 a  ,241
 |       #| d                                               ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld e_fNionnen ualbls
l      _| n                     ^u
llable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from In file included from ../src/s2/s2edge_crossings.hs2/s2edge_distances.cc::3418:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2edge_distances.h::2129:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s1angle.h::3728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h::2127:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h456::231:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29456:
 | In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.hO:G31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T923E:R48N:A Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]D
EFI  N923E | _ M A K E _ C H E C K _ O P _ S T R I N G _ E X T E R N ( c hcaorn)s;t
       C| o^n
di/usr/local/clang/include/absl/log/internal/check_op.ht:i449o:n31*:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_n  u449l | l a belxet ebr)n; 
t      e| m                                               ^p
la/usr/local/clang/include/absl/base/nullability.ht:e257 :c23o:n snote: texpanded from macro 'absl_nullable' 
ch  a257r | *# daebfsiln_en oanbnsull_ln uMlalkaebClhee c_kNOuplSltarbilneg
(       |                        ^ 
\
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2edge_distances.cc| :                     ^18
:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2edge_crossings.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2edge_crossings.h:
:In file included from 34../src/s2/s2coder.h:
:In file included from 23../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/log/internal/check_op.h94::
456In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h1::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
948:/usr/local/clang/include/absl/log/internal/check_op.h10::450 :warning: 25type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'  
948 |    450  | b o o l   ( *xa,b sxl,_ ncuolnlsatb lceh aerv*a la_b)s(lc_onnosntn uCloln)d
i      t| i                        ^o
n*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | )# d=e fniunlel patbrs;l
_      n| o         ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :_23N:o nnote: nexpanded from macro 'absl_nullable'u
ll  
257       | | #                     ^d
efine absl_nullable _Nullable
      In file included from | s2/s2edge_crossings.cc                      ^:
18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from In file included from ../src/s2/base/logging.hs2/s2edge_distances.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2edge_distances.h::3729:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1angle.h::2128:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h457::271:
:In file included from  ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
457In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hL:O94G:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A948L:_48D:E Fwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
E_M  A948K | E _ CbHoEoClK _(O*Pa_bSsTlR_InNuGl_lEaXbTlEeR Ne(vuanls_i)g(nceodn scth aCro)n;d
i      t| i^o
n*/usr/local/clang/include/absl/log/internal/check_op.h :a449b:s31l:_ nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
nul  l449) |   =  enxutlelrpnt rt;e
m      p| l                                               ^a
te/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innoen naublsll _MnaoknenCuhlelc k_ONpoSntnruilnlg
In file included from (      s2/s2furthest_edge_query.cc | :                     ^ 16
 :
\In file included from 
../src/s2/s2furthest_edge_query.h      :| 25                              ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from In file included from :s2/s2edge_distances.cc/usr/local/clang/include/absl/log/check.h22:::1837 :
:
note: In file included from In file included from expanded from macro 'absl_nonnull'../src/s2/s2edge_distances.h/usr/local/clang/include/absl/log/internal/check_impl.h
::29  21:
241:
In file included from  | In file included from #../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.hd::e28f41i:
:
nIn file included from In file included from e../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/strip.h ::a27b26s:
:
lIn file included from In file included from _../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/log_message.hn::o2347n:
:
nIn file included from In file included from u/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/structured_proto.hl::l6727 :
:
_In file included from In file included from N/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/proto.ho::n2934n:
:
uIn file included from /usr/local/clang/include/absl/types/span.hl/usr/local/clang/include/absl/strings/cord.hl:
:212      94:| :
22                     ^In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:In file included from 951s2/s2edge_crossings.cc::  918212::
 |   In file included from warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2edge_crossings.hu
s:i  34n951g:
 |   In file included from p o../src/s2/base/logging.hvio:ni21td:
e*rIn file included from   /usr/local/clang/include/absl/log/check.ha=b: sT37l*_:
 naIn file included from ubl/usr/local/clang/include/absl/log/internal/check_impl.hsl:la21_b:
n/usr/local/clang/include/absl/log/internal/check_op.hlu:el 457la:ar1bg:i_ lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i=t
 yn/usr/local/clang/include/absl/log/internal/check_op.h_uu:lnl450kp:nto25rw;:n
;       
| note:               ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'| 

                     ^/usr/local/clang/include/absl/base/nullability.h
:  257450:/usr/local/clang/include/absl/base/nullability.h | 23: : 289  :note:  34expanded from macro 'absl_nullable' :
    note: x257expanded from macro 'absl_nullability_unknown', | 
 #x  d,289e  | cf#iodnneesf tia nbcesh ala_rbn*su lalb_lnsaublll_lena ob_niNnluuilltlly)a_b
ul      ne| k
                        ^n      
o| w                      ^/usr/local/clang/include/absl/base/nullability.hn
: 241_:N22u:l lIn file included from note: _expanded from macro 'absl_nonnull's2/s2edge_distances.ccu
:n18s  :
p241In file included from e | ../src/s2/s2edge_distances.h#c:id29fe:
ifIn file included from ie../src/s2/s1angle.hnde:
 28a      b:
| sIn file included from                                  ^l../src/s2/s2point.h_
:n27o:
nIn file included from n../src/s2/s2coder.hu:In file included from l23s2/s2furthest_edge_query.ccl:
: In file included from 16_/usr/local/clang/include/absl/status/status.hN:
o:nIn file included from 67n../src/s2/s2furthest_edge_query.hu:
:lIn file included from 25l/usr/local/clang/include/absl/status/internal/status_internal.h:

:In file included from       29../src/s2/base/logging.h| :
:                     ^In file included from 21
/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/log/internal/check_impl.h:
:21/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 954/usr/local/clang/include/absl/log/internal/check_op.h::5241::
 In file included from /usr/local/clang/include/absl/log/internal/strip.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]26
:
In file included from In file included from s2/s2edge_crossings.cc  /usr/local/clang/include/absl/log/internal/log_message.h:954:18 | 47:
 :
In file included from  In file included from ../src/s2/s2edge_crossings.hs/usr/local/clang/include/absl/log/internal/structured_proto.ht::a3427t:
:
iIn file included from In file included from c../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/proto.h ::b2134o:
:
oIn file included from /usr/local/clang/include/absl/types/span.hl/usr/local/clang/include/absl/log/check.h: :213C37:a:
34lIn file included from :l/usr/local/clang/include/absl/log/internal/check_impl.h V:warning: otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]21i
:
d/usr/local/clang/include/absl/log/internal/check_op.hP  t:213r458 | F: u1 n:uc stiwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]no
gn (cco  on458ns | sAtt_B pSCLooi_nnLdtOietGri _o=nI N*Tc oEaRnNbsAsLtl_ D_TnE*oF naInbNusEll_l_M AncKuE)_l;Cl
Ha      Eb| Ci                                                   ^Kl
_i/usr/local/clang/include/absl/base/nullability.htO:yP241__:uS22Tn:RkI nNnote: oGexpanded from macro 'absl_nonnull'w_
nE  X;241
T |       E#| Rd                                 ^Ne
(fc/usr/local/clang/include/absl/base/nullability.hio:nn289se:t 34 a:sb tsnote: dlexpanded from macro 'absl_nullability_unknown':_
:ns  to289nr | n#iudnleglf& i)_n;Ne
o       na| nb^usll
l_
/usr/local/clang/include/absl/log/internal/check_op.hn      :u| 449l                     ^l:
a31b:i lnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't
y_u  n449k | n o wenx tIn file included from _es2/s2edge_distances.ccNr:un18l :
ltIn file included from _e../src/s2/s2edge_distances.hum:pn29ls:
paIn file included from te../src/s2/s1angle.hec: i28cf:
oiIn file included from ne../src/s2/s2point.hsdt:
 27      c:
| hIn file included from                                  ^a../src/s2/s2coder.h
r:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :M94a:
kIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hC:h31e:
c/usr/local/clang/include/absl/synchronization/mutex.hk:O956p:S52t:r iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
(     \956
 |        |                                ^s
ta/usr/local/clang/include/absl/base/nullability.ht:i241c: 22b:o onote: lexpanded from macro 'absl_nonnull' 
Ca  s241t | A#nddeCfailnleF uanbcstli_onno(ncnounlslt  _CNoonndniutlilo
n      *|                       ^a
bsl_nonnull c);
      | In file included from                                                    ^s2/s2edge_crossings.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2edge_crossings.h::2234::
 In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b458s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 450_:N25o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
l
        | 450                     ^ | 
      x, x, const char*In file included from  s2/s2edge_distances.cca:b18s:
lIn file included from _../src/s2/s2edge_distances.hn:o29n:
nIn file included from u../src/s2/s1angle.hl:l28):

In file included from       ../src/s2/s2point.h| :                        ^27
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_958n:o50n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o958n | n u lslt
a      t| i                     ^c
 bool CastAndCallMethod(const CIn file included from os2/s2edge_crossings.ccn:d18i:
tIn file included from i../src/s2/s2edge_crossings.ho:n34*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21c:
)/usr/local/clang/include/absl/log/internal/check_op.h;:
459      :| 1                                                 ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 459expanded from macro 'absl_nonnull' | 
AB  S241L | _#LdOeGf_iInNeT EaRbNsAlL__nDoEnFnIuNlEl_ M_ANKoEn_nCuHlElC
K      _| O                     ^P
_STRING_EXTERIn file included from Ns2/s2error.cc(In file included from :cs2/s2edge_distances.cc16o:n:
18sIn file included from :
t../src/s2/s2error.h In file included from :a../src/s2/s2edge_distances.h29b::
s29In file included from l:
/usr/local/clang/include/absl/status/status.h:In file included from ::../src/s2/s1angle.hs67:t:
28rIn file included from :
i/usr/local/clang/include/absl/status/internal/status_internal.hnIn file included from g:../src/s2/s2point.h_29:v:
27iIn file included from e:
/usr/local/clang/include/absl/strings/cord.hwIn file included from :&../src/s2/s2coder.h)86;:
:
23      /usr/local/clang/include/absl/strings/cord_analysis.h:
| :In file included from ^32/usr/local/clang/include/absl/status/status.h
::4767/usr/local/clang/include/absl/log/internal/check_op.h::
: In file included from 449warning: /usr/local/clang/include/absl/status/internal/status_internal.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:31
29::
 In file included from    /usr/local/clang/include/absl/strings/cord.hnote: 32expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN': | 
94s:
i  In file included from z449/usr/local/clang/include/absl/strings/internal/cordz_info.he | :_ 31 t:
e /usr/local/clang/include/absl/synchronization/mutex.hxGt:ee961rt:nE34s :tt ewarning: imtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]mp
alta  et961de | M  ec mosnotrsaytt Ucihsacar *g beaob(oscllo n_Csnatol nlCBnoyruRdleRlfe (pcM*oa nkasebCtsh lTe_c*nk OoanpbnsSultl_rlin norgne(np u) l;l 
 \      s
| e                                              ^      l
| f                              ^)
/usr/local/clang/include/absl/base/nullability.h :/usr/local/clang/include/absl/base/nullability.h{241
::      24122| ::                                 ^22 
:note:  /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull'note: :
expanded from macro 'absl_nonnull'241
  :241  22 | 241:# |  d#note: edexpanded from macro 'absl_nonnull'ef
fii  nne241e  |  #aadbbessflli_n_neno noanbnunslullll_  _n_NooNnnnounlnunll
ull       l_| 
N                     ^      o
| n                     ^n
ull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2error.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1621:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2error.h:In file included from :459s2/s2edge_distances.cc29:::
118In file included from ::
/usr/local/clang/include/absl/status/status.h In file included from :../src/s2/s2edge_distances.hwarning: 67:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29
In file included from :
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from ::../src/s2/s1angle.h45029:::
2825In file included from :
:/usr/local/clang/include/absl/strings/cord.hIn file included from  :../src/s2/s2point.hnote: 86:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
27
/usr/local/clang/include/absl/strings/cord_analysis.h:
:In file included from 50  ../src/s2/s2coder.h:450:49 | 23: :
  In file included from  warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
 67 :
   xIn file included from ,50 /usr/local/clang/include/absl/status/internal/status_internal.h | x:,s29i :
zcIn file included from eo/usr/local/clang/include/absl/strings/cord.h_n:ts94 t:
G eIn file included from cth/usr/local/clang/include/absl/strings/internal/cordz_info.hMa:or31r*:
 /usr/local/clang/include/absl/synchronization/mutex.hea:Pb975srl:e_31cn:io swarning: netype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Mn
uelm  ol975r) | y 
U       sia| n                        ^gle
i(n/usr/local/clang/include/absl/base/nullability.hce:o 241nvs:ot22i :dC  oRnote: redexpanded from macro 'absl_nonnull'aR
deC  pa*241l  | la#bbdasecflki_(nneTo *an nbasubllsl_l n_roneonpn)nn;uul
ll       l| _                                                 ^Nco
anl/usr/local/clang/include/absl/base/nullability.hnl:ubl241al:c
22k      :)|                        ^note: cexpanded from macro 'absl_nonnull'
o
ns  t241  | {#
d      e| f                              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56:In file included from  s2/s2edge_distances.cc:warning: 18:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2edge_distances.h:29:
In file included from    ../src/s2/s1angle.h56: | 28s:
iIn file included from z../src/s2/s2point.he:_27t:
 In file included from G../src/s2/s2coder.he:t23E:
sIn file included from t/usr/local/clang/include/absl/status/status.hi:m67a:
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hd:F29a:
iIn file included from r/usr/local/clang/include/absl/strings/cord.hS:h94a:
rIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hM:e31m:
o/usr/local/clang/include/absl/synchronization/mutex.hr:y979U:s43a:g ewarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
onst   979C | o r dsRteapt*i ca bbsolo_ln oAnlnwualyls Trreupe)(;c
o      n| s                                                       ^t
 C/usr/local/clang/include/absl/base/nullability.ho:n241d:i22t:i onote: nexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneuflilnaeb laeb)s l{_ nroentnuurlnl  t_rNuoen;n u}l
l      
|                                                 ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(consIn file included from ts2/s2edge_distances.cc :c18h:
aIn file included from r../src/s2/s2edge_distances.h*: 29a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from )../src/s2/s2coder.h;:
23      :
| In file included from ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h449::2931:
:In file included from  /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :44931 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :e1033x:t20e:r nwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
emp l1033a | t e  vcooinds tW acihta(rM*u taebxs*l _anbosnln_unloln nMualkle Cmhue)c k{O
p      S| t                   ^r
in/usr/local/clang/include/absl/base/nullability.hg:(241 : 22 :\ 
note:       expanded from macro 'absl_nonnull'| 
                              ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2edge_distances.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2edge_distances.h37::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s1angle.h21::
28/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 460../src/s2/s2point.h::6627::
 In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h  :46067 | :
AIn file included from B/usr/local/clang/include/absl/status/internal/status_internal.hS:L29_:
LIn file included from O/usr/local/clang/include/absl/strings/cord.hG:_94I:
NIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hE:R31N:
A/usr/local/clang/include/absl/synchronization/mutex.hL:_1050D:E31F:I Nwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
MAKE _1050C | H E CbKo_oOlP _WSaTiRtIWNiIn file included from Gts2/s2furthest_edge_query.cc_h:ET16Xi:
mTIn file included from eE../src/s2/s2furthest_edge_query.hoR:uNt25((:
McIn file included from uo../src/s2/base/logging.htn:es21xt:
* In file included from  c/usr/local/clang/include/absl/log/check.hah:ba37sr:
l*In file included from  _/usr/local/clang/include/absl/log/internal/check_impl.han:bo21ns:
nlIn file included from u_/usr/local/clang/include/absl/log/internal/check_op.hnl:lo41 n:
nmuIn file included from lu/usr/local/clang/include/absl/log/internal/strip.hl,:) ;26
a:
b      In file included from s| /usr/local/clang/include/absl/log/internal/log_message.h                                                                 ^l::
47::
/usr/local/clang/include/absl/base/nullability.hDIn file included from :u/usr/local/clang/include/absl/log/internal/structured_proto.h241r::a2722t:
:iIn file included from  o/usr/local/clang/include/absl/log/internal/proto.hnnote: : expanded from macro 'absl_nonnull'34t
:
i  m/usr/local/clang/include/absl/types/span.h241e: | o#733ud:te31)f: i {nwarning: 
etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]       
a| b                              ^s
  l733_/usr/local/clang/include/absl/base/nullability.h | n:co241on:nn22su:tl lnote: e expanded from macro 'absl_nonnull'x_
Npo  rn241 n | S#upldale
nf<      iT| n>                     ^e 
 MaabkselS_pnaIn file included from ons2/s2edge_crossings.ccn(:nTu18*l:
 lIn file included from a b../src/s2/s2edge_crossings.h_s:Nlo34_n:
nnIn file included from uu../src/s2/base/logging.hll:ll21a
:
b      In file included from l| /usr/local/clang/include/absl/log/check.he                     ^: 
37p:
tIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.h :A21B:
S/usr/local/clang/include/absl/log/internal/check_op.hL:_460A:T66T:R Iwarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
TIn file included from /usr/local/clang/include/absl/base/nullability.hEs2/s2edge_distances.cc_::L24118I::
F22In file included from E:../src/s2/s2edge_distances.hT :Inote: 29expanded from macro 'absl_nonnull'M:

EIn file included from _../src/s2/s1angle.hB  :O24128U | :
N#In file included from Dd../src/s2/s2point.h,e:
f27      i:
| nIn file included from                               ^e../src/s2/s2coder.h
 :a23b/usr/local/clang/include/absl/base/nullability.h:
s:In file included from l257/usr/local/clang/include/absl/status/status.h_::n2367o::
n In file included from nnote: u/usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nullable'l:
l29 :
  _In file included from 257N/usr/local/clang/include/absl/strings/cord.h | o:#n94dn:
euIn file included from lf/usr/local/clang/include/absl/strings/internal/cordz_info.hil:
n31      e:
 | /usr/local/clang/include/absl/synchronization/mutex.ha                     ^:b
1069s:l32_:n In file included from uwarning: s2/s2edge_crossings.ccltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:l
18a:
bIn file included from  l../src/s2/s2edge_crossings.h1069e: |   34_ :
NbIn file included from uo../src/s2/base/logging.hlo:lla21 bW:
laeIn file included from i
t/usr/local/clang/include/absl/log/check.h      W:| i                      ^37t
h:
DIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.ha:d21l:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e460(:M1u:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s460l | _AnBoSnLn_uLlOlG _mIuN,T EaIn file included from Rbs2/s2furthest_edge_query.ccsN:lA16:L:
:_In file included from TD../src/s2/s2furthest_edge_query.hiE:mF25eI:
 NIn file included from dE../src/s2/base/logging.he_:aM21dA:
lKIn file included from iE/usr/local/clang/include/absl/log/check.hn_:eC)37 H:
{EIn file included from 
C/usr/local/clang/include/absl/log/internal/check_impl.h      K:| _21                               ^O:

PIn file included from _/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.hS::T41241R:
:IIn file included from 22N/usr/local/clang/include/absl/log/internal/strip.h:G: _26note: E:
expanded from macro 'absl_nonnull'XIn file included from 
T/usr/local/clang/include/absl/log/internal/log_message.hE  :R24147N | :
(#In file included from dc/usr/local/clang/include/absl/log/internal/structured_proto.heo:fn27is:
ntIn file included from e /usr/local/clang/include/absl/log/internal/proto.h c:ah34ba:
sr/usr/local/clang/include/absl/types/span.hl*:_ 739na:ob21ns:nl u_warning: lntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lo
 n_n  uN739ol | nSlnpu)aln;l<

T            >| |                       ^^M
a
ke/usr/local/clang/include/absl/log/internal/check_op.hS:p450a:n25(:T *note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
bs  l450_ | n u l lIn file included from  a s2/s2edge_distances.ccb :lx18e,:
  In file included from bx../src/s2/s2edge_distances.he,:g 29ic:
noIn file included from  n../src/s2/s1angle.hAs:Bt28 S:
LcIn file included from _h../src/s2/s2point.hAa:rT27*T :
RaIn file included from bIs../src/s2/s2coder.hlB:_Un23To:
EnIn file included from _n/usr/local/clang/include/absl/status/status.hLu:Il67lF):

EIn file included from T      /usr/local/clang/include/absl/status/internal/status_internal.hI| :M                        ^29E
:
_In file included from B/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.hO::U24194N::
D22In file included from ,:/usr/local/clang/include/absl/strings/internal/cordz_info.h
 :      note: 31| expanded from macro 'absl_nonnull':
                    ^
/usr/local/clang/include/absl/synchronization/mutex.h
:  1088241/usr/local/clang/include/absl/base/nullability.h: | :35#257:d: e23fwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i 
nnote: e  expanded from macro 'absl_nullable'1088a
 | b   s 257lv | o_#idndoen fEninnuaebl lalebD s_elbN_unoguLlnolgna(buclolen ls_
tN       u| clh                     ^laa
rb*l ea
b      s| l                      ^_
nullable name);In file included from 
s2/s2furthest_edge_query.cc      :| 16                                  ^:
In file included from 
In file included from s2/s2edge_crossings.cc/usr/local/clang/include/absl/base/nullability.h../src/s2/s2furthest_edge_query.h:::1825725:
::
In file included from 23In file included from ../src/s2/s2edge_crossings.h:../src/s2/base/logging.h: :3421note: :
:
expanded from macro 'absl_nullable'In file included from In file included from 
../src/s2/base/logging.h/usr/local/clang/include/absl/log/check.h  ::2572137 | :
:
#In file included from In file included from d/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_impl.he::f3721i:
:
nIn file included from In file included from e/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_op.h ::a2141b:
:
s/usr/local/clang/include/absl/log/internal/check_op.hIn file included from l:/usr/local/clang/include/absl/log/internal/strip.h_461:n:26u1:
l:In file included from l /usr/local/clang/include/absl/log/internal/log_message.hawarning: :btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]47l
:
eIn file included from    /usr/local/clang/include/absl/log/internal/structured_proto.h_461:N | 27uA:
lBIn file included from lS/usr/local/clang/include/absl/log/internal/proto.haL:b_34lL:
e/usr/local/clang/include/absl/types/span.hO
G:      _740| I:                      ^N21
T:E Rwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
L_D  E740F | I NIn file included from  Es2/s2edge_distances.cc :_ 18 M:
 AIn file included from K ../src/s2/s2edge_distances.hE : _29 C:
 HIn file included from  E../src/s2/s1angle.h C:K 28 _:
 OIn file included from  P../src/s2/s2point.hT_:*S27 T:
aRIn file included from bI../src/s2/s2coder.hsN:lG23__:
nEIn file included from uX/usr/local/clang/include/absl/status/status.hTl:lE67aR:
bNIn file included from l(/usr/local/clang/include/absl/status/internal/status_internal.he
:       29e| :
n^In file included from d
/usr/local/clang/include/absl/strings/cord.h):/usr/local/clang/include/absl/log/internal/check_op.h 94n::
o449In file included from e:/usr/local/clang/include/absl/strings/internal/cordz_info.hx31:c:31e :
p/usr/local/clang/include/absl/synchronization/mutex.hnote: t: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'1091{
:
26      :  |                      ^449warning: 
 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] /usr/local/clang/include/absl/base/nullability.h
 :e257 x:1091t23 | e r: n b note: oexpanded from macro 'absl_nullable'to
le   m257Wp | a#liadtetCfoeimn meoc nao(bMnsulst_etnxu *lc lahabbasrlle*_  n_aoNnbunlsulllal_b lnmeuo
tn      en| x                      ^u,

l      l|                           ^M
ak/usr/local/clang/include/absl/base/nullability.he:C241h:e22c:k Onote: pexpanded from macro 'absl_nonnull'S
tr  i241n | g#(d e f i\n
e       | a                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from In file included from s2/s2edge_distances.cc../src/s2/s2edge_crossings.h::1834:
:
In file included from In file included from ../src/s2/s2edge_distances.h../src/s2/base/logging.h::2921:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/check.h::2837:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_impl.h::2721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2coder.h::46223::
24In file included from :/usr/local/clang/include/absl/status/status.h :warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :46229 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94c:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hs:t31 :
s/usr/local/clang/include/absl/synchronization/mutex.hi:g1093n:e46d:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r* a b1093s | l _ nvoonindu lRle)m;o
vIn file included from       es2/s2furthest_edge_query.cc(| :b                       ^16a
:
sIn file included from /usr/local/clang/include/absl/base/nullability.he../src/s2/s2furthest_edge_query.h_::i24125n::
t22In file included from e:../src/s2/base/logging.hr :nnote: 21expanded from macro 'absl_nonnull'a:

lIn file included from :  /usr/local/clang/include/absl/log/check.h:241:P | 37e#:
rdIn file included from Te/usr/local/clang/include/absl/log/internal/check_impl.hhf:ri21en:
aeIn file included from d /usr/local/clang/include/absl/log/internal/check_op.hSa:yb41ns:
clIn file included from h_/usr/local/clang/include/absl/log/internal/strip.h*n: o26an:
bnIn file included from su/usr/local/clang/include/absl/log/internal/log_message.hll:_l47n :
o_In file included from nN/usr/local/clang/include/absl/log/internal/structured_proto.hno:un27nl:
ulIn file included from l /usr/local/clang/include/absl/log/internal/proto.hls:
)34      ;:
| 
                     ^/usr/local/clang/include/absl/types/span.h      
:| 794                                             ^:
8: /usr/local/clang/include/absl/base/nullability.h:warning: In file included from 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2edge_crossings.cc:
:2218::
   In file included from note: 794expanded from macro 'absl_nonnull'../src/s2/s2edge_crossings.h | 
 :   34 241 :
 | T#In file included from *d../src/s2/base/logging.h e:afb21isn:
leIn file included from _ /usr/local/clang/include/absl/log/check.hna:ub37ls:
llaIn file included from _b/usr/local/clang/include/absl/log/internal/check_impl.hnlo:en21 np:
u/usr/local/clang/include/absl/log/internal/check_op.htl:rl462  :A_24BN:So Ln_warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Au
Tl/usr/local/clang/include/absl/base/nullability.hTl:R
241I      :B| 22U                     ^T:
E _note: Lexpanded from macro 'absl_nonnull'I
FE  T241I | M#Ed_eBfOiUnNeD ,a bssilz_en_otn nsuilzle )_ Nnoonenxuclelp
t       | {                     ^

      |        ^
In file included from s2/s2edge_crossings.cc/usr/local/clang/include/absl/base/nullability.h::18257:
:In file included from 23../src/s2/s2edge_crossings.h:: 34note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/logging.h:21  :
257In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s461l:_1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   461_ | NAuBlSlLa_bLlOeG
_      I| N                      ^T
ERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 | In file included from  s2/s2furthest_edge_query.cc : 16 :
 In file included from  ../src/s2/s2furthest_edge_query.hx:,25 :
xIn file included from In file included from ,../src/s2/base/logging.hs2/s2edge_distances.cc ::c2118o:
n:
In file included from sIn file included from t/usr/local/clang/include/absl/log/check.h../src/s2/s2edge_distances.h :c:37h29a:
r:
In file included from *In file included from /usr/local/clang/include/absl/log/internal/check_impl.h ../src/s2/s1angle.h:a:21b28:
s:
lIn file included from In file included from _/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.hn::o4127n:
:
nIn file included from In file included from u/usr/local/clang/include/absl/log/internal/strip.h../src/s2/s2coder.hl::l2623):
:

In file included from In file included from       /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/status/status.h| ::                        ^4767
:
:
In file included from /usr/local/clang/include/absl/base/nullability.hIn file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:/usr/local/clang/include/absl/status/internal/status_internal.h:241:27:29:
22:
In file included from :In file included from /usr/local/clang/include/absl/log/internal/proto.h /usr/local/clang/include/absl/strings/cord.h:note: :34expanded from macro 'absl_nonnull'94:

:
/usr/local/clang/include/absl/types/span.hIn file included from   :/usr/local/clang/include/absl/strings/internal/cordz_info.h241799: | :31#32:
d/usr/local/clang/include/absl/synchronization/mutex.h:e: f1109warning: i:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n34e
:  a  bwarning: 799stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | l
_Snp oa1109nn | <n cu oelnlxs pt_l NiTocn>in tuM laMlku
et      Ce| x                     ^oL
nosctkSMpaaynb(eT(*M uatbesxl*_ naublsllIn file included from a_s2/s2edge_crossings.ccbn:lu18el:
 lbIn file included from ae../src/s2/s2edge_crossings.hbg:lie34n :

mIn file included from       u../src/s2/base/logging.h| )                               ^:

21      :
/usr/local/clang/include/absl/base/nullability.h| In file included from :                                 ^/usr/local/clang/include/absl/log/check.h257
::3723/usr/local/clang/include/absl/base/nullability.h:
::In file included from  257/usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nullable':23
21::
   /usr/local/clang/include/absl/log/internal/check_op.h257note: : | expanded from macro 'absl_nullable'463#
:d  1e257:f |  i#nwarning: deetype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] f
aibns  el 463_a | nbAusBllSl_Lan_buLllOelG a__bINlNueTl El_RaNNbuAllLel_
aD      bE| lF                      ^eI

N      E| _                      ^M
AKE_CIn file included from Hs2/s2furthest_edge_query.ccE:C16K:
_In file included from O../src/s2/s2furthest_edge_query.hP:_25S:
TIn file included from R../src/s2/base/logging.hI:N21G:
In file included from _In file included from s2/s2edge_distances.ccE/usr/local/clang/include/absl/log/check.h:X:18T37:
E:
In file included from RIn file included from ../src/s2/s2edge_distances.hN/usr/local/clang/include/absl/log/internal/check_impl.h:(:29
21:
      :
In file included from | In file included from ../src/s2/s1angle.h^/usr/local/clang/include/absl/log/internal/check_op.h:
:2841:
/usr/local/clang/include/absl/log/internal/check_op.h:
In file included from :In file included from ../src/s2/s2point.h449/usr/local/clang/include/absl/log/internal/strip.h:::273126:
::
In file included from  In file included from ../src/s2/s2coder.hnote: /usr/local/clang/include/absl/log/internal/log_message.h:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':23
47:
:
In file included from In file included from   /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/structured_proto.h449:: | 6727 :
:
 In file included from In file included from e/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/proto.hx::t2934e:
:
rIn file included from /usr/local/clang/include/absl/types/span.hn/usr/local/clang/include/absl/strings/cord.h: :801t94:e:
32mIn file included from :p/usr/local/clang/include/absl/strings/internal/cordz_info.h l:warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]31t
:
e/usr/local/clang/include/absl/synchronization/mutex.h   :801c1117o | :n 34s t:    cwarning: h atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] r
 *     a1117 b |   s l _ neo nx pn ul il c li  Mta k e CM uh etc keO px SLtTor*c iknaMgb(a sylb _ e\n
(uM      lul| tae                              ^bxl
*e /usr/local/clang/include/absl/base/nullability.h a:ebn241sdl:)_ 22nnu:olelx acnote: bexpanded from macro 'absl_nonnull'elp
et    m{241u
, |        #| dc                               ^eof
inn/usr/local/clang/include/absl/base/nullability.hse: ta257b :Cs23ol:_nn donote: niexpanded from macro 'absl_nullable'tn
iuol  nl257&  |  _#cNdoeonfndni)nu
el       l| 
a                                 ^      b
s| l/usr/local/clang/include/absl/base/nullability.h                     ^_:
n257u:l23l:In file included from a bs2/s2edge_crossings.ccnote: lexpanded from macro 'absl_nullable':e
18 :
  _In file included from 257N../src/s2/s2edge_crossings.h | u#:ldl34eaf:
biIn file included from lne../src/s2/base/logging.he
 :      a21| b:
                      ^sIn file included from 
l/usr/local/clang/include/absl/log/check.h_:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
e/usr/local/clang/include/absl/log/internal/check_op.h :_464N:u26l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e
        464|  |                       ^ 
   const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2edge_distances.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2edge_distances.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10In file included from :s2/s2edge_crossings.cc :warning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2edge_crossings.h: 341132:
 | In file included from  ../src/s2/base/logging.h :M21u:
tIn file included from e/usr/local/clang/include/absl/log/check.hx:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l464l:a26b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :m22u:_ ;note: 
expanded from macro 'absl_nonnull'      
|          ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:ne  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _NuIn file included from ls2/s2edge_crossings.ccl:a18b:
lIn file included from e../src/s2/s2edge_crossings.h
:      34| :
                      ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2edge_distances.cc465: | 18A:
BIn file included from S../src/s2/s2edge_distances.hL:_29L:
OIn file included from G../src/s2/s1angle.h_:I28N:
TIn file included from E../src/s2/s2point.hR:N27A:
LIn file included from _../src/s2/s2coder.hD:E23F:
IIn file included from N/usr/local/clang/include/absl/status/status.hE:_67M:
AIn file included from K/usr/local/clang/include/absl/status/internal/status_internal.hE:_29C:
HIn file included from E/usr/local/clang/include/absl/strings/cord.hC:K94_:
OIn file included from P/usr/local/clang/include/absl/strings/internal/cordz_info.h_:S31T:
R/usr/local/clang/include/absl/synchronization/mutex.hI:N1146G:_7E:X Twarning: E'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]R
N(co n1146s | t   v o i d *t haibss)l)_ nAoBnSnLu_lElX)C;L
U      S| I^V
E_/usr/local/clang/include/absl/log/internal/check_op.hL:O449C:K31_:F Unote: Nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'C
TIO  N449( | m u )e
x      t| e      ^~~~r
n template const char* absl_nonnull MakeC/usr/local/clang/include/absl/synchronization/mutex.hh:e1153c:k39O:p Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ing (1153  |     \e
x      p| l                              ^i
ci/usr/local/clang/include/absl/base/nullability.ht: 241R:e22l:e anote: sexpanded from macro 'absl_nonnull'a
bl  e241M | u#tdeexfLioncek (aMbustle_xn*o nanbuslll_ n_oNnonnunlull lm
u      )| 
                     ^      
|                                       ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2edge_crossings.cc::24118::
22In file included from :../src/s2/s2edge_crossings.h :note: 34expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_465n:o66n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o465n | nAuBlSlL
_      L| O                     ^G
_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTEIn file included from Rs2/s2edge_distances.ccN:(18c:
oIn file included from n../src/s2/s2edge_distances.hs:t29 :
vIn file included from o../src/s2/s1angle.hi:d28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:)67;:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                                                                 ^29
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  1158241: | 53#:d ewarning: f'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
ne a b1158s | l _ n o n n uMlult e_xN&o nmnuu lAlB
S      L| _                     ^I
NTERNALIn file included from _s2/s2edge_crossings.ccA:T18T:
RIn file included from I../src/s2/s2edge_crossings.hB:U34T:
EIn file included from _../src/s2/base/logging.hC:A21P:
TIn file included from U/usr/local/clang/include/absl/log/check.hR:E37D:
_In file included from B/usr/local/clang/include/absl/log/internal/check_impl.hY:(21t:
h/usr/local/clang/include/absl/log/internal/check_op.hi:s465):,66
:       | warning:                                                     ^~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No/usr/local/clang/include/absl/synchronization/mutex.hn:n1166u:l39l:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

 1166In file included from  | s2/s2edge_crossings.cc : 18e:
xIn file included from p../src/s2/s2edge_crossings.hl:i34c:
iIn file included from t../src/s2/base/logging.h :R21e:
lIn file included from e/usr/local/clang/include/absl/log/check.ha:s37a:
bIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.he:M21u:
t/usr/local/clang/include/absl/log/internal/check_op.he:x465L:o1c:k (warning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
tex  *465  | aAbBsSlL__nLoOnGn_uIlNlT EmRuN,A Lc_oDnEsFtI NCEo_nMdAiKtEi_oCnH&E CcKo_nOdP)_
S      T| R                                      ^I
NG/usr/local/clang/include/absl/base/nullability.h_:E241X:T22E:R Nnote: (expanded from macro 'absl_nonnull'c
on  s241t |  #vdoeifdi*n ea basbls_ln_onnonnunlull)l; 
_      N| o^n
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l450
:      25| :                     ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2edge_distances.cc
:18  :
241In file included from  | ../src/s2/s2edge_distances.h#:d29e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2edge_crossings.ccexpanded from macro 'absl_nullable':
18:
  In file included from 257../src/s2/s2edge_crossings.h | :#34d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
a/usr/local/clang/include/absl/log/internal/check_op.hb:l502e: 1_:N uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
abl  e502
 |       A| B                      ^S
L_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2edge_distances.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2edge_distances.h37::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s1angle.h21::
28/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 502../src/s2/s2point.h::127::
 In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::49767::
32In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :note: 29expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 497/usr/local/clang/include/absl/strings/internal/cordz_info.h | : 31 :
i/usr/local/clang/include/absl/synchronization/mutex.hn:l1212i:n52e:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
stex p1212r |  bcooonls tC ocnhdairt*i oanb:s:lC_ansutlAlnadbClael lnMaemteh#o#dI(mcpoln(s t   C o n d i t i o n *   a b s l _ n\o
n      n| u                               ^l
l /usr/local/clang/include/absl/base/nullability.hc:)257 :{23
:       | note:                                                    ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea balbes l__Nnuolnlnaubllle 
_      N| o                      ^n
null
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absIn file included from ls2/s2edge_distances.cc_:n18o:
nIn file included from n../src/s2/s2edge_distances.hu:l29l:
 In file included from e../src/s2/s1angle.hx:p28r:
tIn file included from e../src/s2/s2point.hx:t27):
 In file included from {../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94\:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                  ^31
:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::2411221::2254::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | # d1221e | fbionoel  aCbosnld_intoinonnu:l:lC a_sNtoAnnnduClall
l      F| u                     ^n
ction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2edge_crossings.cc::24118::
22In file included from :../src/s2/s2edge_crossings.h :note: 34expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n503o:n1n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
_Non  n503u | lAlB
S      L| _                     ^L
OG_INTERNAL_CHECK_OP_IMPL(Check_In file included from Ns2/s2edge_distances.ccE:,18 :
!In file included from =../src/s2/s2edge_distances.h):
29      :
| In file included from ^../src/s2/s1angle.h
:28:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.h::48827::
32In file included from :../src/s2/s2coder.h :note: 23expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

In file included from /usr/local/clang/include/absl/status/status.h:67  :
488In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29i:
nIn file included from l/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31s:
t/usr/local/clang/include/absl/synchronization/mutex.he:x1293p:r33 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t ch a1293r | *v oaibds lR_enguilsltaebrlMeu tneaxmTer#a#cIemrp(lv(o i d   ( * a b s l _ n o n n u l l   f\n
)      (| c                               ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 257c:h23a:r *note:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  masbgs,l
_      n| u                                ^l
la/usr/local/clang/include/absl/base/nullability.hb:l241e: 22_:N unote: lexpanded from macro 'absl_nonnull'l
ab  l241e | 
#      d| e                      ^f
ine absl_nonnIn file included from us2/s2edge_crossings.ccl:l18 :
_In file included from N../src/s2/s2edge_crossings.ho:n34n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2edge_distances.cc21::
18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 503../src/s2/s2edge_distances.h::129::
 In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h489::2747:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'23
:
In file included from /usr/local/clang/include/absl/status/status.h:  67489:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.hc:o94n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h :T311:
&/usr/local/clang/include/absl/synchronization/mutex.h :v12931:,62 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t T 21293& |  vvo2i,d  cRoengsits tcehraMru*t eaxbTsrla_cneorn(nvuolild  e(x*parbtselx_tn)o n{n u l l   f\n
)      (| c                                              ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  masbgs,l
_      n| o                                                             ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                         In file included from  s2/s2edge_crossings.cc : 18 :
 In file included from  ../src/s2/s2edge_crossings.h : 34 :
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from v/usr/local/clang/include/absl/log/check.ho:i37d:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n503o:n1n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
ob/usr/local/clang/include/absl/log/internal/check_op.hj:,497
:      32| :                                                             ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
241:22:   note: 497expanded from macro 'absl_nonnull' | 
    i241n | l#idneef icnoen satbesxlp_rn ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^u
llable name##Impl(        In file included from  s2/s2edge_distances.cc : 18 :
 In file included from  ../src/s2/s2edge_distances.h : 29 :
 In file included from  ../src/s2/s1angle.h\:
28      :
| In file included from                                ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h257::2323:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nullable'67
:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h257: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n1309u:l35l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 _N u1309l | lvaobilde 
R      e| g                      ^i
sterCondIn file included from Vs2/s2edge_crossings.cca:r18T:
rIn file included from a../src/s2/s2edge_crossings.hc:e34r:
(In file included from v../src/s2/base/logging.ho:i21d:
 In file included from (/usr/local/clang/include/absl/log/check.h*:a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u503l:l1 :f nwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](

      /usr/local/clang/include/absl/log/internal/check_op.h| :                                  ^498
:35/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'22
: note:   expanded from macro 'absl_nonnull'498
 |     241  |  # d efiinnte  va1b,s li_nnto nvn2u,l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_noIn file included from ns2/s2edge_distances.ccn:u18l:
lIn file included from  ../src/s2/s2edge_distances.he:x29p:
rIn file included from t../src/s2/s1angle.he:x28t:
)In file included from  ../src/s2/s2point.h{: 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
\In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                                  ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:/usr/local/clang/include/absl/synchronization/mutex.h22::1310 :note: 17expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de f1310i | n e   a bcsoln_snto ncnhualrl*  _aNbosnln_unloln
n      u| l                     ^l
 msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2edge_distances.ccn:u18l:
lIn file included from a../src/s2/s2edge_distances.hb:l29e:
 In file included from _../src/s2/s1angle.hN:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:

In file included from       ../src/s2/s2coder.h| :                      ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53In file included from :s2/s2edge_crossings.cc :warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:  21109:
 | In file included from v/usr/local/clang/include/absl/log/check.ho:i37d:
 In file included from C/usr/local/clang/include/absl/log/internal/check_impl.ho:p21y:
C/usr/local/clang/include/absl/log/internal/check_op.ho:r505d:T1o:S twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ng/usr/local/clang/include/absl/log/internal/check_op.h(:c489o:n47s:t  note: Cexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'o
rd&   489s | r c ,   s t dc:o:nssttr iTn1g&*  va1b,s lc_onnosntn uTl2l&  dvs2t,) ;c
o      n| s                                                    ^t
 ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle feixnper taebxstl)_ n{o n n u l l\ 
_      N| o                                              ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2edge_distances.ccn:u18l:
lIn file included from 
../src/s2/s2edge_distances.h      :| 29                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2edge_crossings.cc
:18  :
241In file included from  | ../src/s2/s2edge_crossings.h#:d34e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 505_:N1o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l
/usr/local/clang/include/absl/log/internal/check_op.h      :| 497                     ^:
32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from In file included from ../src/s2/base/logging.hs2/s2edge_distances.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2edge_distances.h::3729:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1angle.h::2128:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.h::50627::
1In file included from :../src/s2/s2coder.h :warning: 23type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
  In file included from 506/usr/local/clang/include/absl/status/internal/status_internal.h | :A29B:
S/usr/local/clang/include/absl/strings/cord.hL:_525L:O35G:_ Iwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERNA  L525_ | C H E C Ka_bOsPl_:I:McPoLr(dC_hienctke_rGnEa,l :>:=C)o
r      d| R^e
p* /usr/local/clang/include/absl/log/internal/check_op.ha:b488s:l32_:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
abl  e488  | c u rirnelnitn_el ecaofn_s t=e xnpurl lcpotnrs;t
       c| h                                  ^a
r*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: uexpanded from macro 'absl_nullable'l
la  b257l | e# dneafmien#e# Iambpsll(_ n u l l a b l e   _ N u l l a b l e 
\      
|                             ^| 
                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      | In file included from                                               ^s2/s2edge_distances.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2edge_distances.h::2229::
 In file included from note: ../src/s2/s1angle.hexpanded from macro 'absl_nonnull':
28:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l582 :_37N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
      |                        ^582
 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2edge_crossings.ccu:l18l:

In file included from       ../src/s2/s2edge_crossings.h| :                     ^34
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2/s2edge_distances.cc497: | 18 :
 In file included from i../src/s2/s2edge_distances.hn:l29i:
nIn file included from e../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht:e27x:
pIn file included from r../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s588l:_17n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   588n | a m e # #cIomnpslt(  C o r d *   a b s l _ n o n n u l l  \c
o      r| d                               ^_
;
/usr/local/clang/include/absl/base/nullability.h      :| 257                ^:
23: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'241
:22  :257  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int vIn file included from 1s2/s2edge_distances.cc,: 18i:
nIn file included from t../src/s2/s2edge_distances.h :v292:
,In file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :c27h:
aIn file included from r../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :e641x:p33r:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
) {   641  |          u s i n g   p o i n t\e
r       | =                                  ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la;b
s      l| _                                ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline consIn file included from ts2/s2edge_distances.cce:x18p:
rIn file included from  ../src/s2/s2edge_distances.hc:o29n:
sIn file included from t../src/s2/s1angle.h :c28h:
aIn file included from r../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :n29a:
m/usr/local/clang/include/absl/strings/cord.he:#898#:I27m:p lwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       898  |      f r i e n d   c o n\s
t       | C                               ^o
rd/usr/local/clang/include/absl/base/nullability.hz:I257n:f23o:*  note: aexpanded from macro 'absl_nullable'b
sl  _257n | u#ldleafbilnee  GaebtsClo_rnduzlIlnafbolFeo r_TNeusltlianbgl(e

            | |                           ^                      ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2edge_crossings.cc#:d18e:
fIn file included from i../src/s2/s2edge_crossings.hn:e34 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37a:
bIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.he: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.hu:l507l:a1b:l ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^/usr/local/clang/include/absl/log/internal/check_op.h
:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                              In file included from  s2/s2edge_crossings.cc : 18 :
CIn file included from o../src/s2/s2edge_crossings.hr:d34R:
eIn file included from p../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
l/usr/local/clang/include/absl/log/internal/check_op.he: 507r:e1p:) ;warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                           ^/usr/local/clang/include/absl/log/internal/check_op.h
:497:/usr/local/clang/include/absl/base/nullability.h32::257 :note: 23expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
 note: expanded from macro 'absl_nullable'  
497 |    257  | i#ndleifnien ec oanbsstle_xnpurl lcaobnlset  _cNhualrl*a balbes
l      _| n                      ^u
llable name##Impl(      In file included from  s2/s2edge_distances.cc : 18 :
 In file included from  ../src/s2/s2edge_distances.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28\:

In file included from       ../src/s2/s2point.h| :                               ^27
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23257:
:In file included from 23/usr/local/clang/include/absl/status/status.h:: 67note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
257/usr/local/clang/include/absl/strings/cord.h | :#929d:e26f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l929_ | n u l l avbolied  _SNwualpl(aIbnllei
n      e| R                      ^e
p* absl_nIn file included from os2/s2edge_crossings.ccn:n18u:
lIn file included from l../src/s2/s2edge_crossings.h :r34h:
sIn file included from )../src/s2/base/logging.h;:
21      :
| In file included from                          ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:/usr/local/clang/include/absl/log/internal/check_op.h :note: 507expanded from macro 'absl_nonnull':
1:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
de/usr/local/clang/include/absl/log/internal/check_op.hf:i498n:e35 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
_no  n498n | u l l   _ N oinnntu lvl1
,       | i                     ^n
t v2, const char* absl_nIn file included from os2/s2edge_distances.ccn:n18u:
lIn file included from l../src/s2/s2edge_distances.h :e29x:
pIn file included from r../src/s2/s1angle.ht:e28x:
tIn file included from )../src/s2/s2point.h :{27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h\:
932      :| 17                                  ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
:22:   note: 932expanded from macro 'absl_nonnull' | 
     241  | c#odnesfti nceh aarb*s la_bnsoln_nnuullll a_bNloen ndualtla
(      )|                       ^c
onst;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2edge_crossings.cc961: | 18 :
 In file included from  ../src/s2/s2edge_crossings.h :v34o:
iIn file included from d../src/s2/base/logging.h :S21e:
tIn file included from T/usr/local/clang/include/absl/log/check.hr:e37e:
OIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hE:m21p:
ty/usr/local/clang/include/absl/log/internal/check_op.h(:C511o:r13d:R ewarning: ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 ab  s511l | _cnounlslta bclhea rr*e pa,b
s      l| _                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a257b:l23e:  Cnote: hexpanded from macro 'absl_nullable'e
ck  s257t | r#cdmepftirnuee Iabslm_pnlu(l
l      a| b            ^l
e _/usr/local/clang/include/absl/base/nullability.hN:u257l:l23a:b lnote: eexpanded from macro 'absl_nullable'

      |                       ^  
257 | #define absl_nullabIn file included from ls2/s2edge_distances.cce: 18_:
NIn file included from u../src/s2/s2edge_distances.hl:l29a:
bIn file included from l../src/s2/s1angle.he:
28      :
| In file included from                       ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2edge_crossings.cc67::
18In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2edge_crossings.h29::
34/usr/local/clang/include/absl/strings/cord.h:
:In file included from 968../src/s2/base/logging.h::3121::
 In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21968:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 512 : 17v:o iwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
Emp  l512a | c e T r eceo(nCsotr dcRheapr**  aabbssll__nnounlnlualbll er esp1,,  Mceotnhsotd Icdheanrt*i faibesrl _mneutlhloadb)l;e
       s| 2                              ^,

      | /usr/local/clang/include/absl/base/nullability.h                ^:
241:/usr/local/clang/include/absl/base/nullability.h22::257 :note: 23expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from In file included from s2/s2edge_distances.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2edge_distances.h/usr/local/clang/include/absl/log/check.h::2937:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_impl.h::2821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.h::51227::
47In file included from :../src/s2/s2coder.h :23warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
  In file included from 512/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 /usr/local/clang/include/absl/strings/cord.h :c972o:n31s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   972a | b s l _ nvuolilda bElmep lsa1c,e Tcroenes(tC ocrhdaRre*p *a basbls_ln_unlolnanbullel  sr2e,p
,       | c                                              ^o
ns/usr/local/clang/include/absl/base/nullability.h:t257 :I23n:l inote: nexpanded from macro 'absl_nullable'e
Da  t257a | &# dpeafriennet ,a
b      s| l                              ^_
nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e  note: _expanded from macro 'absl_nonnull'N
ul  l241a | b#ldee
f      i| n                      ^e
 absl_nIn file included from os2/s2edge_crossings.ccn:n18u:
lIn file included from l../src/s2/s2edge_crossings.h :_34N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     conIn file included from ss2/s2edge_distances.cct: 18c:
hIn file included from a../src/s2/s2edge_distances.hr:*29 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :e23x:
pIn file included from /usr/local/clang/include/absl/status/status.hr:t67e:
xIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      /usr/local/clang/include/absl/strings/cord.h| :                ^978
:36/usr/local/clang/include/absl/base/nullability.h:: 241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'978
 |     241  |  #vdoeifdi nCeo mambistlT_rneoen(ncuolnls t_ NCoonrnduRlelp
*       | a                     ^b
sl_nullable old_reIn file included from ps2/s2edge_crossings.cc,:
18      :
| In file included from                                    ^../src/s2/s2edge_crossings.h
:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/base/logging.h::2321::
 In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nullable':
37:
  In file included from 257/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i514n:e13 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_nu  l514l | acbolnes t_ Ncuhlalra*b laeb
s      l| _                      ^n
ullable ChIn file included from es2/s2edge_distances.ccc:k18s:
tIn file included from r../src/s2/s2edge_distances.hc:29m:
pIn file included from f../src/s2/s1angle.ha:l28s:
eIn file included from I../src/s2/s2point.hm:p27l:
(In file included from 
../src/s2/s2coder.h      :| 23            ^:

In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67257:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:: 29note: :
expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/cord.h
:979:  30257: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin  e979  | a b s l _ n u l l a b l e   _ N u l l a bCloer
d      R| e                      ^p
* abIn file included from ss2/s2edge_crossings.ccl:_18n:
oIn file included from n../src/s2/s2edge_crossings.hn:u34l:
lIn file included from  ../src/s2/base/logging.hr:e21p:
,In file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :C21o:
r/usr/local/clang/include/absl/log/internal/check_op.hd:z515U:p17d:a twarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S
cop  e515& |   s c o pceo,n
s      t|                               ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee fsi1n,e  caobnsslt_ ncohnanru*l la b_sNlo_nnnuulllla
b      l| e                     ^ 
s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2edge_distances.ccn:e18 :
aIn file included from b../src/s2/s2edge_distances.hs:l29_:
nIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he: 27_:
NIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/status/status.he:
67      :
| In file included from                       ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:982:39:In file included from  s2/s2edge_crossings.ccwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2edge_crossings.h:  34982:
 | In file included from  ../src/s2/base/logging.h : 21 :
vIn file included from o/usr/local/clang/include/absl/log/check.hi:d37 :
AIn file included from p/usr/local/clang/include/absl/log/internal/check_impl.hp:e21n:
d/usr/local/clang/include/absl/log/internal/check_op.hT:r515e:e47T:o Iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
ine  d515( | C o r d Rceopn*s ta bcshla_rn*o nanbuslll_ nturlelea,b
l      e|                                        ^s
1,/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innuel laabbslle_ nso2n,n
u      l| l                                              ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
      note: | expanded from macro 'absl_nullable'                     ^

  257 | #define absl_nIn file included from us2/s2edge_distances.ccl:l18a:
bIn file included from l../src/s2/s2edge_distances.he: 29_:
NIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he:
27      :
| In file included from                       ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2edge_crossings.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1829:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2edge_crossings.h::98434::
36In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 984/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :v516o:i17d:  Awarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
en  d516T | r e e T ocTorneset( CcohradrR*e pa*b salb_snlo_nnnounlnlu lelx ptrrteeex,t )M;e
t      h| o                ^d
Id/usr/local/clang/include/absl/base/nullability.he:n241t:i22f:i enote: rexpanded from macro 'absl_nonnull' 
me  t241h | o#dd)e;f
i      n| e                                   ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _NonIn file included from ns2/s2edge_crossings.ccu:l18l:

In file included from       ../src/s2/s2edge_crossings.h| :                     ^34
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: In file included from warning: s2/s2edge_distances.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from   ../src/s2/s2edge_distances.h517: | 29c:
oIn file included from n../src/s2/s1angle.hs:t28 :
cIn file included from h../src/s2/s2point.ha:r27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
C/usr/local/clang/include/absl/strings/cord.hh:e985c:k30s:t rwarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
sec  m985p | t r u e Ivmopild( 
A      p| p            ^e
nd/usr/local/clang/include/absl/base/nullability.hT:r257e:e23(:C onote: rexpanded from macro 'absl_nullable'd
Re  p257* |  #adbesfli_nneo nanbuslll_ nturlelea,b lMee t_hNoudlIldaebnltei
f      i| e                      ^r
 metIn file included from hs2/s2edge_crossings.cco:d18):
;In file included from 
../src/s2/s2edge_crossings.h      :| 34                             ^:

In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d518e:f17i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bs  l518_ | n o n n ucloln s_tN ocnhnaurl*l 
a      b| s                     ^l
_nullable s1, const cIn file included from hs2/s2edge_distances.cca:r18*:
 In file included from a../src/s2/s2edge_distances.hb:s29l:
_In file included from n../src/s2/s1angle.hu:l28l:
aIn file included from b../src/s2/s2point.hl:e27 :
sIn file included from 2../src/s2/s2coder.h,:
23      :
| In file included from                 ^/usr/local/clang/include/absl/status/status.h
:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/status/internal/status_internal.h::2329::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nullable'986
:40  :257  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n986e |   a b s lv_oniudl PrepleanbdlTer e_eNTuolIlnalbilnee
d      (| C                      ^o
rdRepIn file included from *s2/s2edge_crossings.cc :a18b:
sIn file included from l../src/s2/s2edge_crossings.h_:n34o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from t/usr/local/clang/include/absl/log/check.hr:e37e:
,In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                       ^:

/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h518::24147::22 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    518241 |  |  # d e fcionnes ta bcshla_rn*o nanbuslll_ n_uNlolnanbullel 
s      1| ,                     ^ 
const char* absl_nuIn file included from ls2/s2edge_distances.ccl:a18b:
lIn file included from e../src/s2/s2edge_distances.h :s292:
,In file included from 
../src/s2/s1angle.h      :| 28                                              ^:

In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27257:
:In file included from 23../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/status.h:  67257:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
i/usr/local/clang/include/absl/strings/cord.hn:e988 :a37b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ulla  b988l | e   _ N uvloliadb lPer
e      p| e                      ^n
dTreeIn file included from Ts2/s2edge_crossings.cco:T18r:
eIn file included from e../src/s2/s2edge_crossings.h(:C34o:
rIn file included from d../src/s2/base/logging.hR:e21p:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l519l: 17t:r ewarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 Meth  o519d | I d e n tciofnisetr  cmheatrh*o da)b;s
l      _| n                                    ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22e:x pnote: rexpanded from macro 'absl_nonnull't
ex  t241) | ;#
d      e| f                ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _NonnullIn file included from 
s2/s2edge_distances.cc      :| 18                     ^:

In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2edge_crossings.cc23::
18In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2edge_crossings.h67::
34In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21/usr/local/clang/include/absl/strings/cord.h:
:In file included from 989/usr/local/clang/include/absl/log/check.h::3137::
 In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:  520989: | 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]v
oid   520P | rceopnesntd Tcrheaer(*C oarbdsRle_pn*u lalbasbll_en oCnhneuclkls ttrrceaes,e cMmeptfhaoldsIedIemnptli(f
i      e| r            ^ 
me/usr/local/clang/include/absl/base/nullability.ht:h257o:d23):; 
      note: | expanded from macro 'absl_nullable'                              ^

  /usr/local/clang/include/absl/base/nullability.h257: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneuflilnaeb laeb s_lN_unlolnanbullel
       _| N                      ^o
nnulIn file included from ls2/s2edge_crossings.cc
:      18| :
                     ^In file included from 
../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const chaIn file included from rs2/s2edge_distances.cc*: 18a:
bIn file included from s../src/s2/s2edge_distances.hl:_29n:
uIn file included from l../src/s2/s1angle.hl:a28b:
lIn file included from e../src/s2/s2point.h :s271:
,In file included from  ../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h :c67h:
aIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
b/usr/local/clang/include/absl/strings/cord.hs:l994_:n30u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le   s9942 | , 
        |                  ^v
o/usr/local/clang/include/absl/base/nullability.hi:d257 :C23o:p ynote: Texpanded from macro 'absl_nullable'o
(s  t257d | :#:dsetfriinneg *a basbls_ln_unlolnanbullel  _dNsutl)l acbolnes
t       | {                      ^

      |                              ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2edge_crossings.cc::2218::
 In file included from note: ../src/s2/s2edge_crossings.hexpanded from macro 'absl_nonnull':
34:
  In file included from 241../src/s2/base/logging.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/log/check.hi:n37e:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o521n:n47u:l lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
Non  n521u | l l 
        | c                     ^o
nst char* absl_nullabIn file included from ls2/s2edge_distances.cce: 18s:
1In file included from ,../src/s2/s2edge_distances.h :c29o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29s:
2/usr/local/clang/include/absl/strings/cord.h,:
999      :| 28                                              ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
:23:   999note:  | expanded from macro 'absl_nullable' 
     257v | o#idde fCionpey TaobAsrlr_anyu(lclhaabrl*e  a_bNsull_lnaobnlneu
l      l|                        ^d
st) conIn file included from ss2/s2edge_crossings.cct:;18
:
      In file included from | ../src/s2/s2edge_crossings.h                           ^:
34:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e522f:i17n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl  _522n | o n n u lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2edge_distances.ccn:e18 :
aIn file included from b../src/s2/s2edge_distances.hs:l29_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:34:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:40:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | iIn file included from ns2/s2error.ccl:i16n:
eIn file included from  ../src/s2/s2error.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/status/status.h :s67t:
aIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hu:s29_:
iIn file included from n/usr/local/clang/include/absl/strings/cord.ht:e94r:
nIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hl::31::
S/usr/local/clang/include/absl/synchronization/mutex.ht:a670t:u74s:R ewarning: p'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*
 absl_  n670o | n n uelxlp lSitcaittu sR:e:aRdeeprTMouPtoeixnLtoecrk((
M      u| t                                         ^e
x& /usr/local/clang/include/absl/base/nullability.hm:u241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| 
                     ^      
|                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReadeIn file included from rs2/s2edge_distances.ccM:u18t:
eIn file included from x../src/s2/s2edge_distances.hL:o29c:
kIn file included from (../src/s2/s1angle.hM:u28t:
eIn file included from x../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
o/usr/local/clang/include/absl/status/status.hn:n1038u:l33l:  mwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 AB S1038L | _ S H A RsEtDa_tLuOsC_Ki_nFtUeNrCnTaIlO:N:(Smtua)t
u      s| R                                  ^e
p* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | r#edpe)f i{n
e       | a                                ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, cIn file included from os2/s2edge_distances.ccn:s18t:
 In file included from C../src/s2/s2edge_distances.ho:n29d:
iIn file included from t../src/s2/s1angle.hi:o28n:
&In file included from  ../src/s2/s2point.hc:o27n:
dIn file included from )../src/s2/s2coder.h
:      23| :
                                  ^
/usr/local/clang/include/absl/status/status.h:1063:/usr/local/clang/include/absl/base/nullability.h13::241 :22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
 1063 | c  o241n | s#td ecfhianre*  aabbssll__nnoonnnnuullll  _SNtoantnuuslMle
s      s| a                     ^g
eAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(foIn file included from rs2/s2error.ccm:a16:
tIn file included from )../src/s2/s2error.h,:
29      :
| In file included from           ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMIn file included from us2/s2edge_tessellator.cct:e18x:
LIn file included from o../src/s2/s2edge_tessellator.hc:k24(:
MIn file included from u../src/s2/s1angle.ht:e28x:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
mIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.h):
29      :
| In file included from                                       ^/usr/local/clang/include/absl/strings/cord.h
:82:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::24123::
22In file included from :/usr/local/clang/include/absl/crc/crc32c.h :32note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_format.h:84  :
241 | /usr/local/clang/include/absl/strings/internal/str_format/bind.h#:d143e:f11i:n ewarning:  'enable_if' is a clang extension [-Wgcc-compat]a
bsl_  n143o | n n u l l   _ N o n neunlalb
l      e| _                     ^i
f(str_format_internal::EnsureConstexpr(In file included from ss2/s2error.cc):,16 :
"In file included from c../src/s2/s2error.ho:n29s:
tIn file included from e/usr/local/clang/include/absl/status/status.hx:p67r:
 In file included from t/usr/local/clang/include/absl/status/internal/status_internal.hr:a29p:
"In file included from )/usr/local/clang/include/absl/strings/cord.h,:
94      :
| In file included from           ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIB/usr/local/clang/include/absl/strings/internal/str_format/bind.hU:T149E:_22C:A Pwarning: T'enable_if' is a clang extension [-Wgcc-compat]U
RED_  B149Y | ( t h i s ) ,_
_      a| t                                                    ^~~~t
ribute__((enable_if(str_format_intern/usr/local/clang/include/absl/synchronization/mutex.ha:l1166:::39E:n swarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
eCon s1166t | e x perx(psl)i,c
i      t|                       ^R
eleasableMutexLock(Mutex* absl_nonnull mu/usr/local/clang/include/absl/strings/internal/str_format/bind.h,: 158c:o22n:s twarning:  'enable_if' is a clang extension [-Wgcc-compat]C
ondi  t158i | o n &   c o n_d_)a
t      t| r                                      ^i
but/usr/local/clang/include/absl/base/nullability.he:_241_:(22(:e nnote: aexpanded from macro 'absl_nonnull'b
le  _241i | f#(dVeafliindeF oarbmsalt_Inmopnln<uAlrlg s_.N.o.n>n(usl)l,
       "| b                     ^a
d format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]In file included from 
s2/s2error.cc:16:
In file included from   ../src/s2/s2error.h162: | 29 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
_In file included from _/usr/local/clang/include/absl/status/internal/status_internal.ha:t29t:
rIn file included from i/usr/local/clang/include/absl/strings/cord.hb:u94t:
eIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.h_:(31(:
e/usr/local/clang/include/absl/synchronization/mutex.hn:a1179b:l10e:_ iwarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
Val i1179d | F o rMmuatteIxm*p la<bAsrlg_sn.u.l.l>a(bsl)e,  m"ub_a;d
       f| o         ^r
ma/usr/local/clang/include/absl/base/nullability.ht: 257t:r23a:p "note: )expanded from macro 'absl_nullable')
)
        257|  |                      ^#
define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppenIn file included from ds2/s2edge_tessellator.ccC:o18r:
dIn file included from T../src/s2/s2edge_tessellator.ho:S24t:
rIn file included from i../src/s2/s1angle.hn:g28(:
cIn file included from o../src/s2/s2point.hn:s27t:
 In file included from C../src/s2/s2coder.ho:r23d:
&In file included from  /usr/local/clang/include/absl/status/status.hs:r67c:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hs:t29d:
:In file included from :/usr/local/clang/include/absl/strings/cord.hs:t82r:
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hg:*23 :
aIn file included from b/usr/local/clang/include/absl/crc/crc32c.hs:l32_:
n/usr/local/clang/include/absl/strings/str_format.ho:n860n:u43l:l  warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t);
        860|  |                                                       ^ 
 f/usr/local/clang/include/absl/base/nullability.hr:i241e:n22d:  vnote: oexpanded from macro 'absl_nonnull'i
d   A241b | s#ldFeofrimnaet Falbusslh_(nFoonrnmualtlS i_nNko*n naublsll
_      n| o                     ^n
null sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2edge_distances.cco:n18n:
uIn file included from l../src/s2/s2edge_distances.hl: 30_:
NIn file included from o../src/s2/s1chord_angle.hn:n31u:
lIn file included from l../src/s2/s2pointutil.h
:      27| :
                     ^
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #defineIn file included from  s2/s2error.ccS:216_:
CIn file included from H../src/s2/s2error.hE:C29K:
_In file included from N/usr/local/clang/include/absl/status/status.hE: 67C:
HIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hC:K29_:
N/usr/local/clang/include/absl/strings/cord.hE:
501      :| 52                    ^:
 warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
120:3:   note: 501expanded from macro 'CHECK_NE' | 
      120e | x p lAiBcSiLt_ LCOhGu_nIkNITtEeRrNaAtLo_rC(HcEoCrKd__NiEn_tIeMrPnLa(l(:v:aClo1r)d,R e#pv*a la1b,s l(_vnaoln2n)u,l l# vtarle2e))
;      
|         ^| 
                                                   ^/usr/local/clang/include/absl/log/internal/check_impl.h
:51:3/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL':
 note: expanded from macro 'absl_nonnull'   
51 |    241  | A#BdSeLf_iLnOeG _aIbNsTlE_RnNoAnLn_uClHlE C_KN_oOnPn(uClhle
c      k| _                     ^N
E, !=, val1, val1_text,In file included from  s2/s2error.ccv:a16l:
2In file included from ,../src/s2/s2error.h :v29a:
lIn file included from 2/usr/local/clang/include/absl/status/status.h_:t67e:
xIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h):
29      :
| /usr/local/clang/include/absl/strings/cord.h  ^:
504:40:/usr/local/clang/include/absl/log/internal/check_op.h :68warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'504
 |       68  | e x pwlhiicliet  (CchounnsktI tcehraart*o ra(bcsoln_sntu lCloarbdl*e  aabbssll__nloongn_uilnlt ecronradl)_;c
h      e| c                                       ^k
_o/usr/local/clang/include/absl/base/nullability.hp:_241r:e22s:u lnote: texpanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                     ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: _expanded from macro 'absl_nullable'N
on  n257u | l#ld
e      f| i                     ^n
e absl_nullable _NullaIn file included from bs2/s2error.ccl:e16
:
      In file included from | ../src/s2/s2error.h                      ^:
29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull trIn file included from es2/s2edge_distances.cce:)18;:

In file included from       ../src/s2/s2edge_distances.h| :                                          ^30
:
In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/base/nullability.h::31241:
:In file included from 22../src/s2/s2pointutil.h:: 27:
note: ../src/s2/util/math/matrix3x3.hexpanded from macro 'absl_nonnull':
276:5  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
ef../src/s2/base/logging.hi:n37e: 21a:b snote: lexpanded from macro 'S2_CHECK_NE'_
non   n37u | l#ld e_fNionnen uSl2l_
C      H| E                     ^C
K_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_In file included from Is2/s2error.ccM:P16L:
(In file included from (../src/s2/s2error.hv:a29l:
1In file included from )/usr/local/clang/include/absl/status/status.h,: 67#:
vIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl:129,:
 /usr/local/clang/include/absl/strings/cord.h(:v525a:l352:) ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
val2  )525
 |        |    ^ 
 a/usr/local/clang/include/absl/log/internal/check_impl.hb:s51l::3::c onote: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'd
_in   t51e | r n aAlB:S:LC_oLrOdGR_eIpN*T EaRbNsAlL__nCuHlElCaKb_lOeP (cCuhrercekn_tN_El,e a!f=_,  =v anlu1l,l pvtarl;1
_      t| e                                  ^x
t,/usr/local/clang/include/absl/base/nullability.h :v257a:l232:,  note: vexpanded from macro 'absl_nullable'a
l2  _257t | e#xdte)f
i      n| e  ^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l75_:n61u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'b
le    _75N | u l lAaBbSlLe_
L      O| G                      ^_
INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 | In file included from  s2/s2error.cc :b16o:
oIn file included from l../src/s2/s2error.h :P29a:
rIn file included from s/usr/local/clang/include/absl/status/status.he:F67r:
oIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.h(:a29b:
sl/usr/local/clang/include/absl/strings/cord.h:::1505s:t41r:i nwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
view  1505v | ailnulei,n es tvdo:i:ds tCroirndg:*: CaobpsylT_onAornrnauylIlm pelr(rcohra)r;*
       a| b                                                       ^s
l_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  dnote: sexpanded from macro 'absl_nonnull't
)   c241o | n#sdte f{i
n      e|                                          ^a
bsl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _In file included from Ns2/s2edge_tessellator.cco:n18n:
uIn file included from l../src/s2/s2edge_tessellator.hl:
24      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsagIn file included from es2/s2edge_distances.cc(:c18o:
nIn file included from s../src/s2/s2edge_distances.ht: 31C:
oIn file included from r../src/s2/s2edge_crossings.hd:R47e:
pIn file included from *In file included from ../src/s2/s2predicates.hs2/s2error.cc ::a5516b:
s:
In file included from lIn file included from /usr/local/clang/include/absl/flags/flag.h_../src/s2/s2error.h:n:40o29:
n:
/usr/local/clang/include/absl/flags/commandlineflag.hnIn file included from :u/usr/local/clang/include/absl/status/status.h193l::l6727 :
:rIn file included from  e/usr/local/clang/include/absl/status/internal/status_internal.hwarning: p:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])29
;:

/usr/local/clang/include/absl/strings/cord.h        :193| 1514 |                                               ^: 
 29v:i /usr/local/clang/include/absl/base/nullability.hr:warning: t241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u:
a22l:   vnote: 1514oexpanded from macro 'absl_nonnull' | i
 d     R241 e | caod#(rvddoe_ifidin*nt eea rbanbsalsl_l:n_:onCnoonnrundulRllel p d*_s Ntao)bn snclou_nlnlso
tn       n| =u                     ^ l
0l; 
t      r| e                          ^e
) {/usr/local/clang/include/absl/base/nullability.h
:      241| :                            ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  In file included from :241s2/s2edge_tessellator.cc  | :note: #18expanded from macro 'absl_nonnull'd:
e
fIn file included from i../src/s2/s2edge_tessellator.hn  e:241 24a | :
b#sIn file included from dl../src/s2/s1angle.he_:nfo28in:
nnIn file included from uel../src/s2/s2point.h l:a 27_b:
NsolnIn file included from _n../src/s2/s2coder.hnu:ol23nl:
n
In file included from u      /usr/local/clang/include/absl/status/status.hl| :l                     ^67 
:
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
86      :
| /usr/local/clang/include/absl/strings/cord_analysis.h                     ^:
50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2error.cc241: | 16#:
dIn file included from e../src/s2/s2error.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
n/usr/local/clang/include/absl/strings/cord.hu:l1525l: 29_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
       1525|  |                      ^ 
   cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(foIn file included from rs2/s2edge_distances.ccm:a18t:
)In file included from ,../src/s2/s2edge_distances.h
:      31| :
          ^In file included from 
../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline CorIn file included from ds2/s2edge_distances.cc :C18o:
rIn file included from d../src/s2/s2edge_distances.h:::31A:
dIn file included from v../src/s2/s2edge_crossings.ha:n47c:
eIn file included from A../src/s2/s2predicates.hn:d55R:
eIn file included from a/usr/local/clang/include/absl/flags/flag.hd:(42C:
hIn file included from a/usr/local/clang/include/absl/flags/internal/flag.hr:I30t:
e/usr/local/clang/include/absl/base/call_once.hr:a111t:o40r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o111n | nvuolild  iLto,w
L      e| v                                               ^e
lCa/usr/local/clang/include/absl/base/nullability.hl:l241O:n22c:e (note: aexpanded from macro 'absl_nonnull'b
sl  :241: | o#ndceef_ifnlea ga*b salb_snlo_nnnounlnlu l_lN ofnlnaugl,l 
C      a| l                     ^l
able&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:33:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:33:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:33:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:33:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:33:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2error.cc241::1622:
:In file included from  ../src/s2/s2error.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h:  67241:
 | #/usr/local/clang/include/absl/status/internal/status_internal.hd:e149f:i13n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o149n | ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prIn file included from es2/s2edge_crosser.ccf:i18x:
)In file included from ;../src/s2/s2edge_crosser.h
:      23| :
                        ^In file included from 
../src/s2/s2edge_crossings.h:40/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
  In file included from 241../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n82n:
uIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl: 23_:
NIn file included from o/usr/local/clang/include/absl/crc/crc32c.hn:n32u:
l/usr/local/clang/include/absl/strings/str_format.hl:
155      :| 36                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 | In file included from  s2/s2error.cc :e16x:
pIn file included from l../src/s2/s2error.hi:c29i:
tIn file included from  /usr/local/clang/include/absl/status/status.hF:o67r:
m/usr/local/clang/include/absl/status/internal/status_internal.ha:t150C:o58u:n twarning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ptu  r150e | ( i n t *c oanbsstl _anbosnln:u:lSlt apt)u s:*  pa_b(spl)_ n{o}n
n      u| l                                   ^l
 st/usr/local/clang/include/absl/base/nullability.ha:t241u:s22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsoln_nnuolnln uplrle f_iNxo)n;n
u      l| l                                                         ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2edge_crosser.cc_:N18o:
nIn file included from n../src/s2/s2edge_crosser.hu:l23l:

In file included from       ../src/s2/s2edge_crossings.h| :                     ^40
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_distances.cc:18:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:16:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2error.ccIn file included from :/usr/local/clang/include/absl/status/status.h22::
67In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h116::
29In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :/usr/local/clang/include/absl/strings/cord.h23::
94:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h66::3141:
: /usr/local/clang/include/absl/synchronization/mutex.h:warning: 551:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]40
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
66 |     551  |      s t a t i c   b o o l   D e c r e m e n t S y n cihnSte_mt(yMpuet*e xa*b salb_snlo_nnnounlnlu lolu tm)u;,

            | |                                         ^                                       ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2error.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::
29In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/strings/cord.h116::
94In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h23::
31:
/usr/local/clang/include/absl/strings/numbers.h:/usr/local/clang/include/absl/synchronization/mutex.h77::55261::64 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

     77552 |  | [ [ n o d i s c a r d ] ]   b o o l   S i m p l e A t o f ( a b sbla:s:es_tirnitnegr_nvaile:w: PsetrrT,h rfelaodaSty*n cahb*s la_bnsoln_nnuolnln uolult )w;,

            | |                                                             ^                                                               ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2error.cc:In file included from 22s2/s2edge_tessellator.cc:
:In file included from 18/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/s2edge_tessellator.h:
:In file included from 24/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/s1angle.h:
:28/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 88../src/s2/s2point.h::6227::
 In file included from ../src/s2/s2coder.hwarning: :23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from    /usr/local/clang/include/absl/status/internal/status_internal.h88: | 29[:
[In file included from n/usr/local/clang/include/absl/strings/cord.ho:d94i:
sIn file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ha:r31d:
]/usr/local/clang/include/absl/synchronization/mutex.h]: 556b:o38o:l  warning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
mpl  e556A | t o dv(oaibds lL:o:csktSrlionwgL_ovoipe(wS ysntcrh,W adiotuPbalrea*m sa*b salb_snlo_nnnounlnlu lolu tw)a;i
t      p| ,                                                             ^ 
in/usr/local/clang/include/absl/base/nullability.ht: 241f:l22a:g snote: )expanded from macro 'absl_nonnull';

      |                                        ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:In file included from 98s2/s2edge_tessellator.cc::6018::
 In file included from ../src/s2/s2edge_tessellator.hwarning: :24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
In file included from    ../src/s2/s2point.h98: | 27[:
[In file included from n../src/s2/s2coder.ho:d23i:
sIn file included from c/usr/local/clang/include/absl/status/status.ha:r67d:
]In file included from ]/usr/local/clang/include/absl/status/internal/status_internal.h :b29o:
oIn file included from l/usr/local/clang/include/absl/strings/cord.h :S94i:
mIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31A:
t/usr/local/clang/include/absl/synchronization/mutex.ho:b558(:a35b:s lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
str  i558n | g _ vbioeowl  sLtorc,k SblooowlW*i tahbDsela_dnloinnneu(lMlu Hoouwt )a;b
s      l| _                                                           ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :h onote: wexpanded from macro 'absl_nonnull',

      |                                     ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from In file included from ../src/s2/s2edge_tessellator.hs2/s2error.cc::2422:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/strings/str_cat.h::28116:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2723:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/numbers.h::23112:
:In file included from 44/usr/local/clang/include/absl/status/status.h:: 67:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h  :11294 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 559 : 46 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      559  |                           i n t _ t y p e *   a b s l _ ncoonnnsutl lC oonudti)t;i
o      n| *                                           ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241c | o#ndde,f
i      n| e                                             ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
e       | a                     ^b
sl_nullable _Nullable
      |                       ^In file included from 
s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |      In file included from  s2/s2edge_tessellator.cc : 18 :
 In file included from  ../src/s2/s2edge_tessellator.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
:In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31t:
1/usr/local/clang/include/absl/synchronization/mutex.h2:8562*: 23a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u562l | l   ovuoti)d; 
L      o| c                                                      ^k
Sl/usr/local/clang/include/absl/base/nullability.ho:w241(:M22u:H onote: wexpanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  ahboswl,_ ncoonnnsutl lC o_nNdointniuolnl*
       a| b                     ^s
l_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2error.cc:note: 22expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e118 :a56b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l118l |   _ N o n n u l l 
        |                       ^ 
         In file included from  s2/s2edge_tessellator.cc : 18 :
 In file included from  ../src/s2/s2edge_tessellator.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27a:
bIn file included from s../src/s2/s2coder.hl::23::
uIn file included from i/usr/local/clang/include/absl/status/status.hn:t671:
2In file included from 8/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :o562u:t58):; 
warning:       type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 
                                                       ^
/usr/local/clang/include/absl/base/nullability.h  :562241 | : 22 :v onote: iexpanded from macro 'absl_nonnull'd
 L  o241c | k#Sdleofwi(nMeu Haobws la_bnsoln_nnuolnln u_lNlo nhnouwl,l 
c      o| n                     ^s
t Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2edge_tessellator.ccs2/s2error.cc::1822:
:
In file included from In file included from ../src/s2/s2edge_tessellator.h/usr/local/clang/include/absl/strings/str_cat.h::24116:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2823:
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/numbers.h::27152:
:In file included from 37../src/s2/s2coder.h:: 23:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :15229 | :
vIn file included from o/usr/local/clang/include/absl/strings/cord.hi:d94 :
PIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.ht:T31w:
o/usr/local/clang/include/absl/synchronization/mutex.hD:i565g:i36t:s (warning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nt32  _565t |   i ,v ocihda rU*n laobcsklS_lnoown(nSuylnlc hbWuafi)t;P
a      r| a                                    ^m
s*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dweafiitnpe)  aAbBsSlL__nAoTnTnRuIlBlU T_EN_oCnOnLuDl;l

            | |                                    ^                     ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2error.ccn:u22l:
lIn file included from a/usr/local/clang/include/absl/strings/str_cat.hb:l116e:
 In file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:u23l:
l/usr/local/clang/include/absl/strings/numbers.ha:b156l:e55
:       | warning:                       ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* aIn file included from bs2/s2edge_tessellator.ccs:l18_:
nIn file included from o../src/s2/s2edge_tessellator.hn:n24u:
lIn file included from l../src/s2/s1angle.h :v28a:
lIn file included from u../src/s2/s2point.he:,27
:
      In file included from | ../src/s2/s2coder.h                                                      ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n576e: 49a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n576u | l l  v_oNiodn nTurlylR
e      m| o                     ^v
e(base_internal::PerThIn file included from rs2/s2error.cce:a22d:
SIn file included from y/usr/local/clang/include/absl/strings/str_cat.hn:c116h:
*In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n158o:n57n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
s);
        158|  |                                                 ^b
oo/usr/local/clang/include/absl/base/nullability.hl: 241s:a22f:e _note: sexpanded from macro 'absl_nonnull't
rt  o2411 | 6#_dbeafsien(ea basbls:l:_sntorninnugl_lv i_eNwo ntneuxltl,
       i| n                     ^t
16_t* absl_nonnull value,In file included from 
s2/s2edge_tessellator.cc      :| 18                                                        ^:

In file included from ../src/s2/s2edge_tessellator.h:/usr/local/clang/include/absl/base/nullability.h24::
241In file included from :../src/s2/s1angle.h22::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:o578n:n45u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  578 |   void Block(base_intIn file included from es2/s2error.ccr:n22a:
lIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::P116e:
rIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hh:r23e:
a/usr/local/clang/include/absl/strings/numbers.hd:S160y:n57c:h *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n160o | nbnouolll  ssa)f;e
_      s| t                                            ^r
to/usr/local/clang/include/absl/base/nullability.h3:2241_:b22a:s enote: (expanded from macro 'absl_nonnull'a
bs  l241: | :#sdterfiinnge_ vaibeswl _tneoxntn,u liln t_3N2o_ntn*u lalb
s      l| _                     ^n
onnull value,
      |                                                         ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2edge_tessellator.cc::24118::
22In file included from :../src/s2/s2edge_tessellator.h :24note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :_94N:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h
:      580| :                     ^34
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_inteIn file included from rs2/s2error.ccn:a22l:
:In file included from :/usr/local/clang/include/absl/strings/str_cat.hP:e116r:
TIn file included from h/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:e23a:
d/usr/local/clang/include/absl/strings/numbers.hS:y162n:c57h:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  u162l | lbaobolle  sWaafkee_uspt(r
t      o| 6                                 ^4
_b/usr/local/clang/include/absl/base/nullability.ha:s257e:(23a:b snote: lexpanded from macro 'absl_nullable':
:s  t257r | i#ndge_fviineew  atbesxlt_,n uilnlta6b4l_et *_ Naublslla_bnloen
n      u| l                      ^l
 valueIn file included from ,s2/s2edge_tessellator.cc
:      18| :
                                                        ^In file included from 
../src/s2/s2edge_tessellator.h:24/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.h_:N581o:n38n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  581 |       base_internal::PIn file included from es2/s2error.ccr:T22h:
rIn file included from e/usr/local/clang/include/absl/strings/str_cat.ha:d116S:
yIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hc:h23*:
 /usr/local/clang/include/absl/strings/numbers.ha:b165s:l39_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   w165) | ; 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e faibnsel :a:bisnlt_1n2o8n*n ualbls l__Nnoonnnnuullll
       v| a                     ^l
ue, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2edge_tessellator.cc | :#18d:
eIn file included from f../src/s2/s2edge_tessellator.hi:n24e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23_:
NIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 | In file included from  s2/s2error.cc :v22o:
iIn file included from d/usr/local/clang/include/absl/strings/str_cat.h :T116r:
aIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:(23M:
u/usr/local/clang/include/absl/strings/numbers.hH:o166w: 57a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u166l | lb ohoolw )s;a f e/_/s tursteodu 8f_obra sCeo(nadbVsalr:-:>sMturtienxg _tvriaenws fteerx
t      ,|                     ^u
in/usr/local/clang/include/absl/base/nullability.ht:8241_:t22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nvea laubes,l
_      n| o                                                        ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _In file included from Ns2/s2edge_tessellator.cco:n18n:
uIn file included from l../src/s2/s2edge_tessellator.hl:
24      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2error.cc586::2243:
:In file included from  /usr/local/clang/include/absl/strings/str_cat.h:warning: 116type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
586 | /usr/local/clang/include/absl/strings/numbers.h : 168v:o59i:d  warning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
r(ba  s168e | _bionotle rsnaafle:_:sPterrtTohur1e6a_dbSaysnec(ha*b salb:s:ls_tnroinnngu_lvli
e      w|                                            ^t
ex/usr/local/clang/include/absl/base/nullability.ht:,241 :u22i:n tnote: 1expanded from macro 'absl_nonnull'6
_t  *241  | a#bdself_innoen naublsll _vnaolnuneu,l
l       | _                                                          ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_noIn file included from ns2/s2edge_tessellator.ccn:u18l:
lIn file included from  ../src/s2/s2edge_tessellator.h_:N24o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40:In file included from  s2/s2error.cc:warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
  In file included from 590/usr/local/clang/include/absl/strings/internal/stringify_sink.h | : 23 :
e/usr/local/clang/include/absl/strings/numbers.hx:p170l:i59c:i twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
utex  (170c | obnosotl  vsoalfaet_islter tMouut3e2x_*b aasbes(la_bnsull:l:asbtlrei n/g*_ivgineowr etde*x/t),  {u}i
n      t| 3                                       ^2
_t/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# dveafliunee, 
a      b| s                                                          ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull'_
Nu  l241l | a#bdleef
i      n| e                      ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | chIn file included from as2/s2edge_tessellator.ccr:*18 :
aIn file included from b../src/s2/s2edge_tessellator.hs:l24_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :R27o:
uIn file included from n../src/s2/s2coder.hd:T23r:
iIn file included from p/usr/local/clang/include/absl/status/status.hF:l67o:
aIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hT:o29B:
uIn file included from f/usr/local/clang/include/absl/strings/cord.hf:e94r:
(In file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hl:o31a:
t/usr/local/clang/include/absl/synchronization/mutex.h :f624,: 68c:h awarning: r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*
 absl  _624n | o n neuxlpll ibcuiftf eMru)t;e
x      L| o      ^c
k(/usr/local/clang/include/absl/base/nullability.hM:u241t:e22x:&  note: mexpanded from macro 'absl_nonnull'u
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his))In file included from 
s2/s2error.cc      :| 22                                                                   ^~~~:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTri/usr/local/clang/include/absl/synchronization/mutex.hp:F635l:o29a:t Twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
uffe  r635( | f l oeaxtp lfi,c icth aMru*t eaxbLsolc_kn(oMnuntuelxl*  baubfsfle_rn)o;n
n      u| l                                                         ^l
 m/usr/local/clang/include/absl/base/nullability.hu:)241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'E
XC  L241U | S#IdVeEf_iLnOeC Ka_bFsUlN_CnToInOnNu(lmlu )_
N      o| n                            ^n
ull/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2error.ccn:o22n:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116 :
_In file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l191
:      42| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d,In file included from  s2/s2edge_tessellator.ccc:h18a:
rIn file included from *../src/s2/s2edge_tessellator.h :a24b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from b../src/s2/s2coder.hu:f23f:
eIn file included from r/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                                         ^:
29:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.h
:641:  68241: |  #warning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
fine   a641b | s l _enxopnlniuclilt  _MNuotnenxuLlolc
k      (| M                     ^u
tex& mu ABSLIn file included from _s2/s2error.ccI:N22T:
EIn file included from R/usr/local/clang/include/absl/strings/str_cat.hN:A116L:
_In file included from A/usr/local/clang/include/absl/strings/internal/stringify_sink.hT:T23R:
I/usr/local/clang/include/absl/strings/numbers.hB:U198T:E7_:C Awarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
URE  D198_ | BcYh(atrh*i sa)b,s
l      _| n                                                                   ^~~~o
nnull FastIntToBuffer(int32_t i, char*/usr/local/clang/include/absl/synchronization/mutex.h :a649b:s29l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   649b | u f feexrp)l
i      c| i      ^t
 M/usr/local/clang/include/absl/base/nullability.hu:t241e:x22L:o cnote: kexpanded from macro 'absl_nonnull'(
Mu  t241e | x#*d eafbisnle_ naobnsnlu_lnlo nmnuu,l lc o_nNsotn nCuolnld
i      t| i                     ^o
n& condIn file included from )s2/s2error.cc
:      22| :
                            ^In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2223::
 /usr/local/clang/include/absl/strings/numbers.hnote: :expanded from macro 'absl_nonnull'198
:53: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #d  e198f | icnhea ra*b salb_snlo_nnnounlnlu l_lN oFnansutlIln
t      T| o                     ^B
uffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_iIn file included from fs2/s2edge_tessellator.cc(:_18_:
bIn file included from u../src/s2/s2edge_tessellator.hi:l24t:
iIn file included from n../src/s2/s1angle.h_:o28b:
jIn file included from e../src/s2/s2point.hc:t27_:
sIn file included from i../src/s2/s2coder.hz:e23(:
OIn file included from b/usr/local/clang/include/absl/status/status.hj:,67 :
0In file included from )/usr/local/clang/include/absl/status/internal/status_internal.h :<29 :
NIn file included from ,/usr/local/clang/include/absl/strings/cord.h :\94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                 ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670In file included from  | s2/s2error.cc : 22e:
xIn file included from p/usr/local/clang/include/absl/strings/str_cat.hl:i116c:
iIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.h :R23e:
a/usr/local/clang/include/absl/strings/numbers.hd:e200r:M7u:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
ock  (200M | uctheaxr&*  maub sAlB_SnLo_nInNuTlElR NFAaLs_tAITnTtRTIoBBUuTfEf_eCrA(PuTiUnRtE3D2__BtY (nt,h icsh)a)r
*       | a                                                                         ^~~~b
sl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241/usr/local/clang/include/absl/synchronization/mutex.h | :#678d:e35f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _678n | o n neuxlpll i_cNiotn nRuelald
e      r| M                     ^u
texLock(MuIn file included from ts2/s2error.cce:x22*:
 In file included from a/usr/local/clang/include/absl/strings/str_cat.hb:s116l:
In file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:o23n:
n/usr/local/clang/include/absl/strings/numbers.hu:l200l: 54m:u )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL_  S200H | AcRhEaDr_*L OaCbKs_lF_UnNoCnTnIuOlNl( mFua)s
t      I| n                                  ^t
ToB/usr/local/clang/include/absl/base/nullability.hu:f241f:e22r:( unote: iexpanded from macro 'absl_nonnull'n
t3  2241_ | t# dne,f icnhea ra*b salb_snlo_nnnounlnlu l_lN oonuntu_lslt
r      )| 
                     ^      
|                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2edge_tessellator.cco:n18n:
uIn file included from l../src/s2/s2edge_tessellator.hl:
24      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicIn file included from is2/s2error.cct: 22R:
eIn file included from a/usr/local/clang/include/absl/strings/str_cat.hd:e116r:
MIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:e23x:
L/usr/local/clang/include/absl/strings/numbers.ho:c201k:(5M:u twarning: e'diagnose_if' is a clang extension [-Wgcc-compat]x
& m  u201  | A B S L _AIBNSTLE_RINNATLE_RANTATLR_INBEUETDE__MCIANP_TSUIRZEED(_oBuYt(_tshtirs,) ,k
F      a| s                                                                         ^~~~t
ToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   _/usr/local/clang/include/absl/synchronization/mutex.h_:a689t:t35r:i bwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
e__(  (689d | i a genxopslei_ciift( _R_ebaudielrtMiunt_eoxbLjoecckt(_Msuitzeex(*O bajb,s l0_)n o<n nNu,l l\ 
m      u| ,                 ^ 
const ConditIn file included from is2/s2error.cco:n22&:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.ho:n116d:
)In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23                                  ^:

/usr/local/clang/include/absl/strings/numbers.h:202/usr/local/clang/include/absl/base/nullability.h::7241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241202 |  | #cdheafri*n ea basbls_ln_onnonnunlull lF a_sNtoInnntuTlolB
u      f| f                     ^e
r(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2error.cc67::
22In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h29::
116In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h94::
23In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/strings/numbers.h31::
203:/usr/local/clang/include/absl/synchronization/mutex.h5::710 :74warning: :'diagnose_if' is a clang extension [-Wgcc-compat] 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  203 |       710A | B S Le_xIpNlTiEcRiNtA LW_rNiEtEeDr_MMuItNe_xSLIoZcEk((bMuuftfeexr&,  mkuF aAsBtSTLo_BIuNfTfEeRrNSAiLz_eA)T;T
R      I| B    ^U
TE/usr/local/clang/include/absl/base/macros.h_:C251A:P18T:U Rnote: Eexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'D
_BY  (251t | h i s_)_)a
t      t| r                                                                         ^~~~i
bute__((diagnose_if(__builtin_obj/usr/local/clang/include/absl/synchronization/mutex.he:c718t:_35s:i zwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
Obj  ,718  | 0 )  e<x pNl,i c\i
t       | W                 ^r
iterMutexLocIn file included from ks2/s2error.cc(:M22u:
tIn file included from e/usr/local/clang/include/absl/strings/str_cat.hx:*116 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:l23_:
n/usr/local/clang/include/absl/strings/numbers.ho:n204n:u7l:l  warning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
)
      |                                     ^204
 | ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fFianset IanbtsTlo_Bnuofnfneurl(lu i_nNto6n4n_utl li
,       | c                     ^h
ar* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2edge_tessellator.cc241: | 18#:
dIn file included from e../src/s2/s2edge_tessellator.hf:i24n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| In file included from                      ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74In file included from :s2/s2error.cc :22warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:  23722:
 | /usr/local/clang/include/absl/strings/numbers.h : 204e:x54p:l iwarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
t W  r204i | tcehraMru*t eaxbLsolc_kn(oMnuntuelxl&  Fmaus tAIBnStLT_oIBNuTfEfReNrA(Lu_iAnTtT6R4I_BtU TiE,_ CcAhPaTrU*R EaDb_sBlY_(ntohninsu)l,l
       b| u                                                                         ^~~~f
fer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnul/usr/local/clang/include/absl/synchronization/mutex.hl: 731_:N35o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^731
 |   explicit WriterMutexLock(Mutex* absl_nonnulIn file included from ls2/s2error.cc :m22u:
,In file included from  /usr/local/clang/include/absl/strings/str_cat.hc:o116n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.h :C23o:
n/usr/local/clang/include/absl/strings/numbers.hd:i205t:i5o:n &warning:  'diagnose_if' is a clang extension [-Wgcc-compat]c
ond  )205
 |        |                                    ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | N#EdEeDf_iMnIeN _aSbIsZlE_(nbounfnfuelrl,  _kNFoansntuTlolB
u      f| f                     ^e
rSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:In file included from 22s2/s2edge_tessellator.cc:
:In file included from 18/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/s2edge_tessellator.h:
:In file included from 24/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/s1angle.h:
:28/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 206../src/s2/s2point.h::5227::
 In file included from ../src/s2/s2coder.hwarning: :23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
  In file included from 206/usr/local/clang/include/absl/status/internal/status_internal.h | :c29h:
aIn file included from r/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n801u:l20l:  Fwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
tInt  T801o | B u fCfoenrd(iitnito1n2(8b oio,l  c(h*aarb*s la_bnsoln_nnuolnln ufluln cb)u(fvfoeird)*
       a| b                                                   ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b inote: lexpanded from macro 'absl_nonnull'i
ty  _241u | n#kdneofwinn)e, 
a      b| s                   ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2error.cc:
:In file included from 22../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 207/usr/local/clang/include/absl/status/internal/status_internal.h::529::
 In file included from /usr/local/clang/include/absl/strings/cord.hwarning: :94'diagnose_if' is a clang extension [-Wgcc-compat]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h207: | 801 : 45 :  Awarning: Btype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]S
L_I  N801T | E R NCAoLn_dNiEtEiDo_nM(IbNo_oSlI Z(E*(abbusflf_enro,n nkuFlals tfTuonBcu)f(fveori1d2*8 Saibzsel)_;n
u      l| l    ^a
bi/usr/local/clang/include/absl/base/macros.hl:i251t:y18_:u nnote: kexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'n
own  )251, | 
        | _                                            ^_
at/usr/local/clang/include/absl/base/nullability.ht:r289i:b34u:t enote: _expanded from macro 'absl_nullability_unknown'_
((  d289i | a#gdneofsien_ei fa(b_s_lb_uniulltlianb_iolbijteyc_tu_nskinzoew(nO b_jN,u l0l)_ u<n sNp,e c\i
f      i| e                 ^d

      |                                  ^
In file included from s2/s2error.cc:22:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hs2/s2edge_tessellator.cc::2318:
:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s2edge_tessellator.h208::247:
:In file included from  ../src/s2/s1angle.h:warning: 28:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h208: | 23c:
hIn file included from a/usr/local/clang/include/absl/status/status.hr:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :F31a:
s/usr/local/clang/include/absl/synchronization/mutex.ht:I802n:t19T:o Bwarning: utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]f
fer  (802u | i n t 1 2 8   i ,   c h avro*i da*b salb_snlo_nnnuulllla bbiulfifteyr_)u
n      k| n      ^o
wn/usr/local/clang/include/absl/base/nullability.h :a241r:g22):; 
      note: | expanded from macro 'absl_nonnull'                  ^

  /usr/local/clang/include/absl/base/nullability.h241: | 289#:d34e:f inote: nexpanded from macro 'absl_nullability_unknown'e
 a  bs289l | _#ndoenfniunlel  a_bNsoln_nnuullll
a      b| i                     ^l
ity_unknoIn file included from ws2/s2error.ccn: 22_:
NIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116_:
uIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:p23e:
c/usr/local/clang/include/absl/strings/numbers.hi:f208i:e53d:
       | warning:                                  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  208 | char* absl_nonnull FastIn file included from Is2/s2edge_tessellator.ccn:t18T:
oIn file included from B../src/s2/s2edge_tessellator.hu:f24f:
eIn file included from r../src/s2/s1angle.h(:u28i:
nIn file included from t../src/s2/s2point.h1:2278:
 In file included from i../src/s2/s2coder.h,: 23c:
hIn file included from a/usr/local/clang/include/absl/status/status.hr:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :b31u:
f/usr/local/clang/include/absl/synchronization/mutex.hf:e814r:)20
:       | warning:                                                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :81422 | :   note: Cexpanded from macro 'absl_nonnull'o
nd  i241t | i#odne(fbionoel  a(b*salb_snlo_nnnounlnlu l_lN ofnunnucl)l(
T      *|                       ^a
bsl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2error.ccd:e22f:
iIn file included from n/usr/local/clang/include/absl/strings/str_cat.he: 116a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:_23n:
o/usr/local/clang/include/absl/strings/numbers.hn:n209u:l5l:  _warning: N'diagnose_if' is a clang extension [-Wgcc-compat]o
nnu  l209l | 
        |                       ^ 
ABSL_IIn file included from Ns2/s2edge_tessellator.ccT:E18R:
NIn file included from A../src/s2/s2edge_tessellator.hL:_24N:
EIn file included from E../src/s2/s1angle.hD:_28M:
IIn file included from N../src/s2/s2point.h_:S27I:
ZIn file included from E../src/s2/s2coder.h(:b23u:
fIn file included from f/usr/local/clang/include/absl/status/status.he:r67,:
 In file included from k/usr/local/clang/include/absl/status/internal/status_internal.hF:a29s:
tIn file included from T/usr/local/clang/include/absl/strings/cord.ho:B94u:
fIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.he:r311:
2/usr/local/clang/include/absl/synchronization/mutex.h8:S814i:z42e:) ;warning: 
      type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]| 
    ^
  /usr/local/clang/include/absl/base/macros.h814: | 251 : 18C:o nnote: dexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'i
tio  n251( | b o o_l_ a(t*tarbisblu_tneo_n_n(u(ldli afgunnocs)e(_Ti*f (a_b_sblu_inlutlilna_boibljietcyt__usnikzneo(wOnb)j,,
       0| )                                         ^ 
< /usr/local/clang/include/absl/base/nullability.hN:,289 :\34
:       | note:                  ^expanded from macro 'absl_nullability_unknown'

  289 | #define absIn file included from ls2/s2error.cc_:n22u:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.ha:b116i:
lIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:y23_:
u/usr/local/clang/include/absl/strings/numbers.hn:k215n:o7w:n  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
ull  _215u | ncshpaerc*i faibesdl
_      n| o                                 ^n
null FastIntToIn file included from Bs2/s2edge_tessellator.ccu:f18f:
eIn file included from r../src/s2/s2edge_tessellator.h(:i24n:
tIn file included from _../src/s2/s1angle.ht:y28p:
eIn file included from  ../src/s2/s2point.hi:,27
:
      In file included from | ../src/s2/s2coder.h      ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n815e: 16a:b swarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
no  n815n | u l l   _ N o n n u l l 
T      *|                       ^a
bsl_nullabilIn file included from is2/s2error.cct:y22_:
uIn file included from n/usr/local/clang/include/absl/strings/str_cat.hk:n116o:
wIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.h :a23r:
g/usr/local/clang/include/absl/strings/numbers.h):;216
:      49| :               ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
289:34:   216note:  | expanded from macro 'absl_nullability_unknown' 
     289  |  # d e f i n e   a b s l _ n u l l a b i l i t y _ u n k n o w n   _ N u lclh_aurn*s paebcsilf_ineodn
n      u| l                                 ^l
 buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2edge_tessellator.cce:f18i:
nIn file included from e../src/s2/s2edge_tessellator.h :a24b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T*In file included from  s2/s2error.cca:b22s:
lIn file included from _/usr/local/clang/include/absl/strings/str_cat.hn:u116l:
lIn file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hb:i23l:
i/usr/local/clang/include/absl/strings/numbers.ht:y217_:u5n:k nwarning: o'diagnose_if' is a clang extension [-Wgcc-compat]w
n),  
217       | |               ^ 
  /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#NdEeEfDi_nMeI Na_bSsIlZ_En(o
n      n| u    ^l
l /usr/local/clang/include/absl/base/macros.h_:N251o:n18n:u lnote: lexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'

      |                      ^
  251 |   _In file included from _s2/s2edge_tessellator.cca:t18t:
rIn file included from i../src/s2/s2edge_tessellator.hb:u24t:
eIn file included from _../src/s2/s1angle.h_:(28(:
dIn file included from i../src/s2/s2point.ha:g27n:
oIn file included from s../src/s2/s2coder.he:_23i:
fIn file included from (/usr/local/clang/include/absl/status/status.h_:_67b:
uIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hl:t29i:
nIn file included from _/usr/local/clang/include/absl/strings/cord.ho:b94j:
eIn file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ht:_31s:
i/usr/local/clang/include/absl/synchronization/mutex.hz:e830(:O36b:j ,warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]0
) <   830N | ,   \ 
        |                   ^b
ool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknownIn file included from 
s2/s2error.cc      :| 22                                             ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/base/nullability.h116::
289In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h34::23 :
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nullability_unknown':
247:47  :289  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e247  | a b s l _ n u l l a b i l i t y _ u n k n o w n   _ N u l l _ u n s p e ciinfti_etdy
p      e| *                                 ^ 
absl_nonnull out, int base) In file included from {s2/s2edge_tessellator.cc
:      18| :
                                              ^In file included from 
../src/s2/s2edge_tessellator.h:24:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h241::2822:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_844N:o10n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                        ^844
 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identIn file included from is2/s2error.cct:y22<:
TIn file included from >/usr/local/clang/include/absl/strings/str_cat.h:::116t:
yIn file included from p/usr/local/clang/include/absl/strings/internal/stringify_sink.he::23::
* /usr/local/clang/include/absl/strings/numbers.ha:b303s:l60_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   m303e | tihnoldi)n(e) 
s      i| z                                            ^e
_t/usr/local/clang/include/absl/base/nullability.h :F241a:s22t:H enote: xexpanded from macro 'absl_nonnull'T
oB  u241f | f#edreZfeirnoeP aadb1s6l(_unionntn6u4l_lt  _vNaoln,n uclhla
r      *|                       ^a
bsl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2edge_tessellator.cc241::1822:
:In file included from  ../src/s2/s2edge_tessellator.h:note: 24expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h:  28241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.h_:N94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 855                     ^:
34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2error.cc:22:
  In file included from 886/usr/local/clang/include/absl/strings/str_cat.h | : 116 :
eIn file included from x/usr/local/clang/include/absl/strings/internal/stringify_sink.hp:l23i:
c/usr/local/clang/include/absl/strings/numbers.hi:t330 :C41o:n dwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ion(  c330o | n s t   T *   a b s l _ n o n n u l l   o b j ) 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.hi:n241t:_22t:y pnote: eexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bosult_)n o{n
n      u| l                                        ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18In file included from :
s2/s2error.ccIn file included from :../src/s2/s2edge_tessellator.h22::
24In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :../src/s2/s1angle.h116::
28In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :../src/s2/s2point.h23::
27:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s2coder.h335::2352:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h  :33594 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 896 : 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     896  |      e x p l i c i t   C o n d i t iaobns(lc:o:nisntt 1T2*8 *a basbls_ln_onnonnunlull lo boju)t
)       | {                              ^

      |                                                    ^/usr/local/clang/include/absl/base/nullability.h
:241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNIn file included from uos2/s2edge_crosser.ccln:ln18
u:
      lIn file included from | l                     ^../src/s2/s2edge_crosser.h

:      23| :
                     ^In file included from 
../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | sizIn file included from es2/s2edge_tessellator.cc_:t18 :
GIn file included from e../src/s2/s2edge_tessellator.ht:E24s:
tIn file included from i../src/s2/s1angle.hm:a28In file included from t:
s2/s2error.cceIn file included from d:../src/s2/s2point.hM22:e:
27mIn file included from :
o/usr/local/clang/include/absl/strings/str_cat.hrIn file included from y:U../src/s2/s2coder.h116s:a:
g23In file included from :
e/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from (:c/usr/local/clang/include/absl/status/status.ho23:n:
67s/usr/local/clang/include/absl/strings/numbers.ht:
 :CIn file included from o340/usr/local/clang/include/absl/status/internal/status_internal.hr::d5329R::
e pwarning: In file included from *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h 
a:b94  s:
340lIn file included from  | _/usr/local/clang/include/absl/strings/internal/cordz_info.h n:o n31 n:
 /usr/local/clang/include/absl/synchronization/mutex.hu :l l922  : r48 e: p  )warning:  ;type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 

        |                                                  ^922 
 |      s /usr/local/clang/include/absl/base/nullability.ht :a 241t :i 22c :   b note: oexpanded from macro 'absl_nonnull' o
 l     241G  | u# da e fr iananebt sealeb:sdl:_Eunqoinunnatlu1l(2lc8 o*_nN saotb snCnlou_nlndloi
ntn      iu| o                     ^ln
l*  oaubts)l _{n
u      l| l                                                    ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241a:,22
:       | note:                                                ^expanded from macro 'absl_nonnull'
In file included from 
/usr/local/clang/include/absl/base/nullability.hs2/s2edge_crosser.cc:  :25724118: | :
23#In file included from :d../src/s2/s2edge_crosser.h e:note: f23expanded from macro 'absl_nullable'i:

nIn file included from e   ../src/s2/s2edge_crossings.h257a: | b40#sd:
le_In file included from fn../src/s2/s1angle.hio:nn28en:
 uIn file included from al../src/s2/s2point.hbl:s 27l_:
_NIn file included from no../src/s2/s2coder.hun:ln23lu:
alIn file included from bl/usr/local/clang/include/absl/status/status.hl
:e      67 | :
_                     ^In file included from N
/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e86
:
      /usr/local/clang/include/absl/strings/cord_analysis.h| :                      ^50
:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   In file included from 50s2/s2edge_tessellator.cc | :s18i:
zIn file included from e../src/s2/s2edge_tessellator.h_:t24 :
GIn file included from e../src/s2/s1angle.ht:M28o:
rIn file included from e../src/s2/s2point.hP:r27e:
cIn file included from i../src/s2/s2coder.hs:e23M:
eIn file included from In file included from ms2/s2error.cco/usr/local/clang/include/absl/status/status.h::r22y67:
U:
sIn file included from aIn file included from g/usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/status/internal/status_internal.he:(:c116o29:
n:
In file included from sIn file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.ht/usr/local/clang/include/absl/strings/cord.h ::C23o94:
r/usr/local/clang/include/absl/strings/numbers.hd:
R:In file included from e346/usr/local/clang/include/absl/strings/internal/cordz_info.hp:*: 44a31:b:
 swarning: l/usr/local/clang/include/absl/synchronization/mutex.h_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:n
o923n:n48  u:346l  | warning: l type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  r
 e p  ) ;923 
 |          |                                                    ^   
     /usr/local/clang/include/absl/base/nullability.h   :  241  :  22  :      note:  expanded from macro 'absl_nonnull'  
         241    |  # d  e  f i n  e  i na bts _lct_ynoopnnnes*utl  alC b_osNnolndn_iuntloli
non      nu| *                     ^l l
a bosult_)n u{l
l      a| b                                           ^l
e b/usr/local/clang/include/absl/base/nullability.hIn file included from ):s2/s2edge_crosser.cc;241:
:18      22:
| :                                               ^In file included from  
../src/s2/s2edge_crosser.hnote: /usr/local/clang/include/absl/base/nullability.h:expanded from macro 'absl_nonnull':23
257:
:  In file included from 23241../src/s2/s2edge_crossings.h: | : #40note: d:
expanded from macro 'absl_nullable'eIn file included from 
f../src/s2/s1angle.hi  n:257e28 |  #a:
dbesIn file included from fli../src/s2/s2point.h_nn:eo27 na:
nbIn file included from usl../src/s2/s2coder.hll_: n_23uNl:
olnIn file included from anb/usr/local/clang/include/absl/status/status.hull:el 67
_:
      NIn file included from | u                     ^/usr/local/clang/include/absl/status/internal/status_internal.hl
:l29a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he:
86      :
| /usr/local/clang/include/absl/strings/cord_analysis.h                      ^:
56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstIn file included from is2/s2error.ccm:a22t:
eIn file included from d/usr/local/clang/include/absl/strings/str_cat.hF:a116i:
rIn file included from S/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from h:s2/s2edge_tessellator.cca23:r:
18e/usr/local/clang/include/absl/strings/numbers.h:
M:In file included from e351m../src/s2/s2edge_tessellator.h:o:55r24:y:
 UIn file included from warning: s../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:g
28e:
(In file included from   c../src/s2/s2point.ho351:n | 27 s:
 tIn file included from   ../src/s2/s2coder.h C:o r23d :
R eIn file included from  p/usr/local/clang/include/absl/status/status.h*  : a67 b:
s In file included from l _/usr/local/clang/include/absl/status/internal/status_internal.hn :o 29n n:
 uIn file included from  l/usr/local/clang/include/absl/strings/cord.h l:  94 r:
 eIn file included from  p/usr/local/clang/include/absl/strings/internal/cordz_info.h ): ;31 
:
       /usr/local/clang/include/absl/synchronization/mutex.h | :                                                        ^948 
: 10/usr/local/clang/include/absl/base/nullability.h : :  241warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]: 
 22 :     948note: aexpanded from macro 'absl_nonnull' | b 
s lb  :o241:o | il#nd t(e1f*2ia8nbe*s  laa_bbnssulll__lnnaoobnnlnneuu llell v _aNoolnun_utl)l)(
 c{      o
| n                           ^s| 
t                                                      ^ 
Co/usr/local/clang/include/absl/base/nullability.hn:d241i:t22i:o nnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel )a b=s ln_unlolnpnturl;l
       _| N         ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l:
23      :|                       ^note: 
expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2error.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::
29In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/strings/cord.h116::
94In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h23::
31:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/synchronization/mutex.h::356948::5648::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    948356 |  |     b o o l   ( * a b s l _ n u l l a b l e   e v a l _ ) ( c o n s t   C o n d iatbisoln:*: uaibnstl1_2n8o*n naublsll)_ n=o nnnuullllp toru;t
)       | {                                               ^

      | /usr/local/clang/include/absl/base/nullability.h                                                       ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(In file included from Ms2/s2error.ccu:t22e:
x*/usr/local/clang/include/absl/strings/str_cat.h :a223b:s25l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
null m  u223, |   a besxlp:l:iTciimte  Hdeexa(dPloiinnet)e e{*
       a| b                               ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
v,   241P | a#ddSepfeicn es paebcs l=_ naobnsnlu:l:lk N_oNPoandn)u
l      l| 
                        ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullaIn file included from bs2/s2edge_tessellator.ccl:e18 :
_In file included from N../src/s2/s2edge_tessellator.hu:l24l:
aIn file included from b../src/s2/s1angle.hl:e28
:
      In file included from | ../src/s2/s2point.h                      ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2error.cc:22:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(constIn file included from  s2/s2edge_tessellator.ccc:h18a:
rIn file included from *../src/s2/s2edge_tessellator.h :a24b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hc:_23s:
tIn file included from r/usr/local/clang/include/absl/status/status.h : 67/:
/In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hN:O29L:
IIn file included from N/usr/local/clang/include/absl/strings/cord.hT:(94r:
uIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ht:i31m:
e/usr/local/clang/include/absl/synchronization/mutex.h/:e1179x:p10l:i cwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
)
       | 1179                       ^ | 
  M/usr/local/clang/include/absl/base/nullability.hu:t257e:x23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257u | l#ldaebflien em ua_b;s
l      _| n         ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b257l:e23 :_ Nnote: uexpanded from macro 'absl_nullable'l
la  b257l | e#
d      e| f                      ^i
ne absl_nullable _Nullable
      |                       ^
In file included from s2/s2error.cc:22:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2furthest_edge_query.cc1242::1644:
:In file included from  ../src/s2/s2furthest_edge_query.h:warning: 25type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21:
 In file included from 1242/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ht:y21p:
eIn file included from n/usr/local/clang/include/absl/log/internal/check_op.ha:m41e:
 In file included from a/usr/local/clang/include/absl/log/internal/strip.hb:s26l:
:In file included from :/usr/local/clang/include/absl/log/internal/log_message.ht:y53p:
e_/usr/local/clang/include/absl/types/source_location.hi:d113e:n19t:i twarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]<
T>::  t113y | p e *   a b sclo_nnsutl lcahbairl*i tayb_suln_knnoonwnnu
l      l|                                             ^f
il/usr/local/clang/include/absl/base/nullability.he:_289n:a34m:e  note: =expanded from macro 'absl_nullability_unknown' 
__b  u289i | l#tdienf_iFnIeL Ea(b)s)l _{n
u      l| l                  ^a
bil/usr/local/clang/include/absl/base/nullability.hi:t241y:_22u:n knote: nexpanded from macro 'absl_nonnull'o
wn   241_ | N#udlelf_iunnes paebcsilf_ineodn
n      u| l                                 ^l
 _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2furthest_edge_query.ccIn file included from :../src/s2/s2point.h16::
27In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :../src/s2/s2coder.h25::
23In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/status/status.h21::
67In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h37::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/strings/cord.h21::
94In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h41::
31In file included from :
/usr/local/clang/include/absl/log/internal/strip.h:/usr/local/clang/include/absl/synchronization/mutex.h26::
1249In file included from :/usr/local/clang/include/absl/log/internal/log_message.h8::53 :
warning: /usr/local/clang/include/absl/types/source_location.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
133:25:  1249 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  T*   133a | b s lc_onnosntneuxlplr  ocbojnesctt ,c
h      a| r       ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241f | i#ldee_fnianmee (a)b sclo_nnsotn nnuolelx c_eNpotn n{u
l      l| 
                        ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2edge_tessellator.cce: 18a:
bIn file included from s../src/s2/s2edge_tessellator.hl:_24n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: In file included from warning: s2/s2furthest_edge_query.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
16:
In file included from ../src/s2/s2furthest_edge_query.h :125025 | :
 In file included from  ../src/s2/base/logging.h : 21b:
oIn file included from o/usr/local/clang/include/absl/log/check.hl: 37(:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21::
:In file included from t/usr/local/clang/include/absl/log/internal/check_op.hy:p41e:
_In file included from i/usr/local/clang/include/absl/log/internal/strip.hd:e26n:
tIn file included from i/usr/local/clang/include/absl/log/internal/log_message.ht:y53<:
T/usr/local/clang/include/absl/types/source_location.h>::142::t25y:p ewarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
* ab  s142l | _ n ocnonnusltle xmpert hcoodn)s(t) )c
h      a| r                                          ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241f | u#ndcetfiionne_ naabmsel(_)n ocnonnusltl  n_oNeoxncneupltl 
{      
|                            ^| 
                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from In file included from ../src/s2/s2furthest_edge_query.hs2/s2edge_tessellator.cc::2518:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2edge_tessellator.h::2124:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s1angle.h::3728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h::2127:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2coder.h::4123:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/status/status.h::2667:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/status/internal/status_internal.h::5329:
:
In file included from /usr/local/clang/include/absl/types/source_location.h/usr/local/clang/include/absl/strings/cord.h::15094::
40In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:1259:14:   150 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1259  |          c o n s t   T *   a b s l _ n ocnonnusltl  cohbajre*c ta,b
s      l| _             ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :f inote: lexpanded from macro 'absl_nonnull'e
_n  a241m | e#)d
e      f| i                                       ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      | In file included from                      ^s2/s2edge_tessellator.cc
:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     In file included from bs2/s2furthest_edge_query.cco:o16l:
 In file included from (../src/s2/s2furthest_edge_query.ha:b25s:
lIn file included from :../src/s2/base/logging.h::t21y:
pIn file included from e/usr/local/clang/include/absl/log/check.h_:i37d:
eIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ht:i21t:
yIn file included from </usr/local/clang/include/absl/log/internal/check_op.hT:>41::
:In file included from t/usr/local/clang/include/absl/log/internal/strip.hy:p26e:
:In file included from :/usr/local/clang/include/absl/log/internal/log_message.h*: 53a:
b/usr/local/clang/include/absl/types/source_location.hs:l165_:n15o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l m  e165t | h o dc)o(n)s
t       | c                                          ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dfeiflien_en aambes_l _=n o"n"n;u
l      l|                ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(coIn file included from ns2/s2furthest_edge_query.ccs:t16 :
cIn file included from h../src/s2/s2furthest_edge_query.ha:r25*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21m:
sIn file included from g/usr/local/clang/include/absl/log/internal/check_op.h,:
41      :
| In file included from                                 ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/log_message.h241::7122::26 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |    #71d | e f iLnoeg Maebsssla_gneo(ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
onnuIn file included from ls2/s2edge_tessellator.ccl: 18f:
iIn file included from l../src/s2/s2edge_tessellator.he:,24 :
iIn file included from n../src/s2/s1angle.ht: 28l:
iIn file included from n../src/s2/s2point.he:,27
:
      In file included from | ../src/s2/s2coder.h                         ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
eIn file included from /usr/local/clang/include/absl/synchronization/mutex.hf:1293:s2/s2error.cc62i:n:e22  :
warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/str_cat.hb
s:l501_: n32o1293:n | n uvwarning: oltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]li 
d_ NRo  ne501gn | iusvltoeli
rdM       u| tA                     ^pe
xpTernadcPeire(cveosi(ds t(d*:a:bsstlr_innogn*n ualbls lf_nn)o(ncnounlslt  dcehsatr,*
       a| b                               ^s
lIn file included from _s2/s2furthest_edge_query.cc/usr/local/clang/include/absl/base/nullability.hn:o:16n241:
n:In file included from u22l../src/s2/s2furthest_edge_query.h:l:  25note: m:
expanded from macro 'absl_nonnull'sIn file included from 
g../src/s2/base/logging.h,  :
24121       | :
| #In file included from                                                              ^d/usr/local/clang/include/absl/log/check.h
e:f37/usr/local/clang/include/absl/base/nullability.hi:
:nIn file included from 241e/usr/local/clang/include/absl/log/internal/check_impl.h: :22a21:b:
 sIn file included from note: l/usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull'_:
n41o:
  nIn file included from 241n/usr/local/clang/include/absl/log/internal/strip.h | u:#ld26le:
 f/usr/local/clang/include/absl/log/internal/log_message.h_i:Nn78oe:n 26na:ub lswarning: lltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
_
n      o| n                     ^   n
78u | l l  L_oNgoMnensuslalg
e      (| c                     ^o
nst charIn file included from *s2/s2edge_tessellator.cc :a18b:
sIn file included from l../src/s2/s2edge_tessellator.h_:n24o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from f../src/s2/s2point.hi:l27e:
,In file included from  ../src/s2/s2coder.hi:n23t:
 In file included from l/usr/local/clang/include/absl/status/status.hi:n67e:
,In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                         ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'1294
:62:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi n1294e |   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
                       const voidIn file included from *s2/s2furthest_edge_query.cc :a16b:
sIn file included from l../src/s2/s2furthest_edge_query.h_:n25o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from o/usr/local/clang/include/absl/log/check.hb:j37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                                             ^21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::41241:
:In file included from 22/usr/local/clang/include/absl/log/internal/strip.h:: 26:
note: /usr/local/clang/include/absl/log/internal/log_message.hexpanded from macro 'absl_nonnull':
80:26  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi   n80e |   a bLsolg_Mneosnsnauglel( c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull file, int lineIn file included from ,s2/s2edge_tessellator.cc
:      18| :
                         ^In file included from 
../src/s2/s2edge_tessellator.h:24/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.h_:N1309o:n35n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1309 | void RegisterCondVarTracer(vIn file included from os2/s2furthest_edge_query.cci:d16 :
(In file included from *../src/s2/s2furthest_edge_query.ha:b25s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
fIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.h):(21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                                  ^:
41:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/strip.h::24126::
22:/usr/local/clang/include/absl/log/internal/log_message.h :82note: :expanded from macro 'absl_nonnull'26
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de   f82i | n e  LaobgsMle_snsoangneu(lclo n_sNto ncnhualrl*
       a| b                     ^s
l_noIn file included from ns2/s2edge_tessellator.ccn:u18l:
lIn file included from  ../src/s2/s2edge_tessellator.hf:i24l:
eIn file included from ,../src/s2/s1angle.h :i28n:
tIn file included from  ../src/s2/s2point.hl:i27n:
eIn file included from ,../src/s2/s2coder.h
:      23| :
                         ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e1310f:i17n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_ n1310o | n n u l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     In file included from cs2/s2furthest_edge_query.cco:n16s:
tIn file included from  ../src/s2/s2furthest_edge_query.hc:h25a:
rIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 In file included from m/usr/local/clang/include/absl/log/internal/check_op.hs:g41,:
 In file included from c/usr/local/clang/include/absl/log/internal/strip.ho:n26s:
t/usr/local/clang/include/absl/log/internal/log_message.h :v119o:i41d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o119n | n u lLlo gcMve)s)s;a
g      e| &                                              ^ 
To/usr/local/clang/include/absl/base/nullability.hS:i241n:k22A:l snote: oexpanded from macro 'absl_nonnull'(
ab  s241l | :#:dLeofgiSnien ka*b salb_snlo_nnnounlnlu l_lN osninnukl)l;

            | |                      ^                                        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2error.ccl:
22      :
|                      ^/usr/local/clang/include/absl/strings/str_cat.h
:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2error.cc/usr/local/clang/include/absl/log/internal/check_impl.h::2221:
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/log/internal/check_op.h::63641::
29In file included from :/usr/local/clang/include/absl/log/internal/strip.h :26warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/log_message.h
:158:32:   636 | warning: vtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
id   S158t | r A pLpoegnMde(ssstadg:e:&s torpienrga*t oarb<s<l(_vnooindn*u lalb sdle_sntu,l lcaobnlset   Avl)p h{a
N      u| m                               ^&
 a/usr/local/clang/include/absl/base/nullability.h):;257
:      23| :                            ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25In file included from :
s2/s2error.ccIn file included from :../src/s2/base/logging.h22::
21:
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/log/check.h637::3729:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
  In file included from 637/usr/local/clang/include/absl/log/internal/strip.h | :v26o:
i/usr/local/clang/include/absl/log/internal/log_message.hd: 161S:t38r:A pwarning: ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
nd(  s161t | d : :LsotgrMiensgs*a gaeb&s lo_pneornantuolrl< <d(ecsotn,s tc ovnositd *A lapbhsalN_unmu&l laa,b
l      e|                              ^ 
v)/usr/local/clang/include/absl/base/nullability.h :{241
:      22| :                                     ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:23  :241  | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en oanbnsull_ln u_lNloanbnluel l_
N      u| l                     ^l
able
      |                       ^
In file included from s2/s2error.cc:22:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2furthest_edge_query.ccd:e16f:
iIn file included from n../src/s2/s2furthest_edge_query.he: 25a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hu:l41l:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                     ^26
:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessagIn file included from es2/s2error.cc&: 22o:
p/usr/local/clang/include/absl/strings/str_cat.he:r641a:t29o:r <warning: <type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
wcha  r641_ | tv*o iadb sSlt_rnAuplpleanbdl(es tvd):;:
s      t| r                                  ^i
ng/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# ddeefsitn,e  caobnsslt_ nAullplhaabNluem &_ Nau,l
l      a| b                            ^l
e
/usr/local/clang/include/absl/base/nullability.h      :| 241                      ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from /usr/local/clang/include/absl/log/check.hs2/s2error.cc::3722:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/str_cat.h::21646:
:In file included from 36/usr/local/clang/include/absl/log/internal/check_op.h:: 41:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/log/internal/log_message.h:  190646: | 42i:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e vo  i190d |   S tLroAgpMpeesnsda(gset&d :o:psetrraitnogr*< <a(bsstld_:n:oonsnturlela md&e s(t*,a bcsoln_snto nAnluplhla Nmu)m(&s tad,:
:      o| s                                   ^t
re/usr/local/clang/include/absl/base/nullability.ha:m241&: 22o:s )note: )expanded from macro 'absl_nonnull';

      |                                            ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20:In file included from  s2/s2edge_tessellator.cc:warning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2edge_tessellator.h:24:
  In file included from 319../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :w23c:
hIn file included from a/usr/local/clang/include/absl/status/status.hr:_67t:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l/usr/local/clang/include/absl/strings/cord.h_:n425u:l62l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 cons  t425& |   v )f;r
i      e| n                   ^d
 vo/usr/local/clang/include/absl/base/nullability.hi:d257 :C23o:p ynote: Cexpanded from macro 'absl_nullable'o
rd  T257o | S#tdreifnign(ec oanbsstl _Cnourldl&a bslrec ,_ Nsutldl:a:bslter
i      n| g                      ^*
 absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2furthest_edge_query.cc_:N16o:
nIn file included from n../src/s2/s2furthest_edge_query.hu:l25l:

In file included from       ../src/s2/base/logging.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | In file included from is2/s2edge_tessellator.ccn:l18i:
nIn file included from e../src/s2/s2edge_tessellator.h :L24o:
gIn file included from M../src/s2/s1angle.he:s28s:
aIn file included from g../src/s2/s2point.he:&27 :
LIn file included from o../src/s2/s2coder.hg:M23e:
sIn file included from s/usr/local/clang/include/absl/status/status.ha:g67e:
:In file included from :/usr/local/clang/include/absl/status/internal/status_internal.ho:p29e:
r/usr/local/clang/include/absl/strings/cord.ha:t437o:r47<:< (warning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har_  t437* |   a b s l _ n u l l a b l e   v )   { 
        |                                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable's
td  :257: | s#tdreifnign*e  aabbssll__nnounlnlualbll ed s_tN)u;l
l      a| b                                              ^l
e
      /usr/local/clang/include/absl/base/nullability.h| :                      ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = consIn file included from ts2/s2furthest_edge_query.cc :v16a:
lIn file included from u../src/s2/s2furthest_edge_query.he:_25t:
yIn file included from p../src/s2/base/logging.he:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_op.h;:
41      :
| In file included from                                       ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/log_message.h241::34022::46 : note: warning: expanded from macro 'absl_nonnull'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d340e | f i nfer iaebnsdl _vnooindn uAlbls l_FNoornmnautlFll
u      s| h                     ^(
StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2furthest_edge_query.ccs:l16_:
nIn file included from u../src/s2/s2furthest_edge_query.hl:l25a:
bIn file included from l../src/s2/base/logging.he: 21_:
NIn file included from u/usr/local/clang/include/absl/log/check.hl:l37a:
bIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.he:
21      :
| In file included from                       ^/usr/local/clang/include/absl/log/internal/check_op.h
:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const In file included from vs2/s2edge_tessellator.cco:i18d:
*In file included from  ../src/s2/s2edge_tessellator.ha:b24s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from &/usr/local/clang/include/absl/status/status.h :v67):
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                ^:

/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h582::25737::23 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

  257 |   #582d | e f i n ee xapblsilc_intu lClhaubnlkeR a_nNguel(lcaobnlset
       C| o                      ^r
d* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from In file included from ../src/s2/s2furthest_edge_query.hs2/s2edge_tessellator.cc::2518:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2edge_tessellator.h::2124:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s1angle.h::3728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h::2127:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2coder.h::4123:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/status/status.h::2667:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/status/internal/status_internal.h::42529::
31:/usr/local/clang/include/absl/strings/cord.h :641warning: :33type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |    641  | L o g M eusssiangge Fpaotianlt(ecro n=s t char* absl_nonnull file, int line) ABScLo_nAsTtT RcIhBaUrT*E _aCbOsLlD_;n
o      n| n                              ^u
ll;/usr/local/clang/include/absl/base/nullability.h
:      241| :                                ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessaIn file included from gs2/s2edge_tessellator.cce:F18a:
tIn file included from a../src/s2/s2edge_tessellator.hl:(24c:
oIn file included from n../src/s2/s1angle.hs:t28 :
cIn file included from h../src/s2/s2point.ha:r27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29f:
i/usr/local/clang/include/absl/strings/cord.hl:e655,: 39i:n twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ine  ,655
 |        |                                ^ 
 e/usr/local/clang/include/absl/base/nullability.hx:p241l:i22c:i tnote:  expanded from macro 'absl_nonnull'C
ha  r241I | t#edreaftionre( caobnsslt_ nCoonrndu*l la b_sNlo_nnnounlnlu
l      l|                       ^c
ord)
      |                                       ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2furthest_edge_query.cc::24116::
22In file included from :../src/s2/s2furthest_edge_query.h :25note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:21  :
241In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs:l41_:
nIn file included from o/usr/local/clang/include/absl/log/internal/strip.hn:n26u:
l/usr/local/clang/include/absl/log/internal/log_message.hl: 427_:N31o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^427
 |                   const char* absl_nonnull failureIn file included from _s2/s2edge_tessellator.ccm:s18g:
)In file included from  ../src/s2/s2edge_tessellator.hA:B24S:
LIn file included from _../src/s2/s1angle.hA:T28T:
RIn file included from I../src/s2/s2point.hB:U27T:
EIn file included from _../src/s2/s2coder.hC:O23L:
DIn file included from ;/usr/local/clang/include/absl/status/status.h
:      67| :
                              ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/strings/cord.h::22667:: 44:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d667e | f i nset aatbiscl _Cnoorndn uAldlv a_nNcoenAnnudlRle
a      d| (                     ^C
harIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2furthest_edge_query.ccN:o16n:
nIn file included from u../src/s2/s2furthest_edge_query.hl:l25
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |  In file included from  s2/s2edge_tessellator.ccL:o18g:
MIn file included from e../src/s2/s2edge_tessellator.hs:s24a:
gIn file included from e../src/s2/s1angle.hD:e28b:
uIn file included from g../src/s2/s2point.hF:a27t:
aIn file included from l../src/s2/s2coder.h(:c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s674l:_37n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll f  i674l | e , 
s      t| a                                   ^t
ic/usr/local/clang/include/absl/base/nullability.h :v241o:i22d:  Anote: dexpanded from macro 'absl_nonnull'v
an  c241e | (#CdheafriIntee raabtsolr_*n oanbnsull_ln o_nNnounlnlu lilt
,       | s                     ^i
ze_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nIn file included from os2/s2edge_tessellator.ccn:n18u:
lIn file included from l../src/s2/s2edge_tessellator.h :f24i:
lIn file included from e../src/s2/s1angle.h,:
28      :
| In file included from                                           ^../src/s2/s2point.h
:27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241 | /usr/local/clang/include/absl/strings/cord.h#:d730e:f36i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n730o | n n u l le x_pNloincniutl lC
h      a| r                     ^R
ange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2furthest_edge_query.ccexpanded from macro 'absl_nonnull':
16:
In file included from   ../src/s2/s2furthest_edge_query.h241: | 25#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41 :
_In file included from N/usr/local/clang/include/absl/log/internal/strip.ho:n26n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l454
:      38| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFIn file included from as2/s2edge_tessellator.cct:a18l:
(In file included from c../src/s2/s2edge_tessellator.ho:n24s:
tIn file included from  ../src/s2/s1angle.hc:h28a:
rIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:l29e:
,/usr/local/clang/include/absl/strings/cord.h
:      736| :                                     ^17
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   736 | note:  expanded from macro 'absl_nonnull' 
    c241o | n#sdte fCionred *a basbls_ln_onnonnunlull l_ Ncoonrndu_l;l

            | |                 ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2furthest_edge_query.ccn:n16u:
lIn file included from l../src/s2/s2furthest_edge_query.h :_25N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2edge_tessellator.cco:n18n:
uIn file included from l../src/s2/s2edge_tessellator.hl: 24_:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2furthest_edge_query.cc29::
16:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2furthest_edge_query.h795::2543:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 795/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
fIn file included from r/usr/local/clang/include/absl/log/internal/check_op.hi:e41n:
dIn file included from  /usr/local/clang/include/absl/log/internal/strip.hv:o26i:
d/usr/local/clang/include/absl/log/internal/log_message.h :A457b:s38l:F owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
atF  l457u | s h ( a b s l : : C o r d *   a b s l _ n o n n u lclo ncsotr dc,h
a      r| *                                          ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   f241a | i#lduerfei_nmes ga)b
s      l| _                                     ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2edge_tessellator.ccn:e18 :
aIn file included from b../src/s2/s2edge_tessellator.hs:l24_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: In file included from warning: s2/s2furthest_edge_query.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
16:
In file included from ../src/s2/s2furthest_edge_query.h:  25927:
 | In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 181 : 25 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      181  |         CcoorndsRte pa*b salb:s:lS_tnautlulsa*b laeb srle_pn)o;n
n      u| l                                          ^l
 st/usr/local/clang/include/absl/base/nullability.ha:t257u:s23,:  cnote: oexpanded from macro 'absl_nullable'n
st   257c | h#adre*f ianbes la_bnsoln_nnuullll apbrleef i_xN)u;l
l      a| b                        ^l
e
      /usr/local/clang/include/absl/base/nullability.h| :                      ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2edge_tessellator.ccn:u18l:
lIn file included from  ../src/s2/s2edge_tessellator.h_:N24o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2furthest_edge_query.cc:/usr/local/clang/include/absl/strings/cord.h16::
929In file included from :../src/s2/s2furthest_edge_query.h26::25 :
In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/log/check.h  :92937 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21v:
o/usr/local/clang/include/absl/log/internal/check_op.hi:d181 :S58w:a pwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
nlin  e181R | e p *   acbosnls_tn oanbnsull:l: Srthast)u;s
*       | a                         ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
st  a241t | u#sd,e fcionnes ta bcshla_rn*o nanbuslll_ n_oNnonnunlull lp
r      e| f                     ^i
x);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2edge_tessellator.cca:b18s:
lIn file included from _../src/s2/s2edge_tessellator.hn:o24n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     consIn file included from ts2/s2furthest_edge_query.cc :c16h:
aIn file included from r../src/s2/s2furthest_edge_query.h*: 25a:
bIn file included from s../src/s2/base/logging.hl:_21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :d21a:
t/usr/local/clang/include/absl/log/internal/check_op.ha:(189): 28c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
;
      |                   ^189
 | i/usr/local/clang/include/absl/base/nullability.hn:l257i:n23e:  cnote: oexpanded from macro 'absl_nullable'n
st   257a | b#sdle:f:iSntea taubss*l _anbuslll_anbolnen u_lNlu lAlsaSbtlaet
u      s| (                      ^c
onst absl::StatuIn file included from ss2/s2edge_tessellator.cc&: 18s:
)In file included from  ../src/s2/s2edge_tessellator.h{:
24      :
| In file included from                            ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
n/usr/local/clang/include/absl/strings/cord.he: 934a:b31s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l934l |   _ N o nvnouildl 
s      e| t                     ^_
data(const char* absl_nullable data, size_t n);
In file included from       s2/s2furthest_edge_query.cc| :                              ^16
:
In file included from ../src/s2/s2furthest_edge_query.h/usr/local/clang/include/absl/base/nullability.h::25257:
:In file included from 23../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 257/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i193n:e21 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nul  l193a | bcloen s_tN ualblsalb:l:eS
t      a| t                      ^u
s* absl_nonnull AsStatus(coIn file included from ns2/s2edge_tessellator.ccs:t18 :
aIn file included from b../src/s2/s2edge_tessellator.hs:l24::
:In file included from S../src/s2/s1angle.ht:a28t:
uIn file included from s../src/s2/s2point.hO:r27<:
TIn file included from >../src/s2/s2coder.h&: 23s:
)In file included from  /usr/local/clang/include/absl/status/status.h{:
67      :
| In file included from                     ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::241935::2211::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #935d | e f i n ec haabrs*l _anbosnln_unloln n_uNloln nsueltl_
d      a| t                     ^a
(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2furthest_edge_query.cc:note: 16expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2furthest_edge_query.h:  25241:
 | In file included from #../src/s2/base/logging.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n202u:l46l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul  l202
 |        |                       ^e
xplicit CheckOpMessageBIn file included from us2/s2edge_tessellator.cci:l18d:
eIn file included from r../src/s2/s2edge_tessellator.h(:c24o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :e29x:
p/usr/local/clang/include/absl/strings/cord.hr:t937e:x35t:) ;warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                              ^
  937/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :a bnote: sexpanded from macro 'absl_nonnull'l
::  c241o | r#dd_eifnitneer naabls:l:_CnoorndnRuelpl*  _aNbosnln_unlull
l      a| b                     ^l
e tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NuIn file included from ls2/s2furthest_edge_query.ccl:a16b:
lIn file included from e../src/s2/s2furthest_edge_query.h
:      25| :
                      ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2edge_tessellator.cc
:18:
In file included from   ../src/s2/s2edge_tessellator.h209: | 24 :
 In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from  ../src/s2/s2point.hc:h27a:
rIn file included from ../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :N938e:w35S:t rwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
g();  
938       | |                ^ 
  /usr/local/clang/include/absl/base/nullability.ha:b241s:l22::: cnote: oexpanded from macro 'absl_nonnull'r
d_  i241n | t#edrenfailn:e: CaobrsdlR_enpo*n naublsll __nNoonnnnuullll 
a      s| _                     ^t
ree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2furthest_edge_query.cc:: 16:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2furthest_edge_query.h
:25:
  In file included from 241../src/s2/base/logging.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/log/check.hi:n37e:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o226n:n59u:l lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
Nonn  u226l | lv
o      i| d                     ^ 
MakeCheckOpValueSIn file included from ts2/s2edge_tessellator.ccr:i18n:
gIn file included from (../src/s2/s2edge_tessellator.hs:t24d:
:In file included from :../src/s2/s1angle.ho:s28t:
rIn file included from e../src/s2/s2point.ha:m27&:
 In file included from o../src/s2/s2coder.hs:,23 :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from v/usr/local/clang/include/absl/status/internal/status_internal.ho:i29d:
*/usr/local/clang/include/absl/strings/cord.h :a941b:s35l:_ nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
lab  l941e |   p ) ; 
a      b| s                                                          ^l
::c/usr/local/clang/include/absl/base/nullability.ho:r257d:_23i:n tnote: eexpanded from macro 'absl_nullable'r
na  l257: | :#CdoerfdiRneep *a basbls_ln_unlullalbalbel e_ Ncullelaarb(l)e;

            | |                       ^                                  ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2furthest_edge_query.cce:f16i:
nIn file included from e../src/s2/s2furthest_edge_query.h :a25b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l276l:
13      :|                       ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nuIn file included from ls2/s2edge_tessellator.ccl:a18b:
lIn file included from e../src/s2/s2edge_tessellator.h :o24p:
eIn file included from r../src/s2/s1angle.ha:t28o:
rIn file included from <../src/s2/s2point.h<:(27s:
tIn file included from d../src/s2/s2coder.h:::23o:
sIn file included from t/usr/local/clang/include/absl/status/status.hr:e67a:
mIn file included from &/usr/local/clang/include/absl/status/internal/status_internal.h,:
29      :
| /usr/local/clang/include/absl/strings/cord.h            ^:
957:27:/usr/local/clang/include/absl/base/nullability.h :257warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
: note: expanded from macro 'absl_nullable'  
957 |    257  |  # dveofiidn eS eatbTsrle_en(uClolradbRleep *_ Naublslla_bnloen
n      u| l                      ^l
 rep, consIn file included from ts2/s2furthest_edge_query.cc :C16o:
rIn file included from d../src/s2/s2furthest_edge_query.hz:U25p:
dIn file included from a../src/s2/base/logging.ht:e21S:
cIn file included from o/usr/local/clang/include/absl/log/check.hp:e37&:
 In file included from s/usr/local/clang/include/absl/log/internal/check_impl.hc:o21p:
e/usr/local/clang/include/absl/log/internal/check_op.h):;277
:      50| :                          ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:   277 | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
       c| o                     ^n
st void* absl_nullable In file included from vs2/s2edge_tessellator.cca:l18u:
eIn file included from )../src/s2/s2edge_tessellator.h;:
24      :
| In file included from                                                  ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h257::2723:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/status/status.h:  67257:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
i/usr/local/clang/include/absl/strings/cord.hn:e961 :a34b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  a961b | l e   _ Nvuolilda bSleet
T      r| e                      ^e
OrEmpty(CordRep* absIn file included from ls2/s2furthest_edge_query.cc_:n16u:
lIn file included from l../src/s2/s2furthest_edge_query.ha:b25l:
eIn file included from  ../src/s2/base/logging.hr:e21p:
,In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                 ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
257:/usr/local/clang/include/absl/log/internal/check_op.h23::278 :13note: :expanded from macro 'absl_nullable' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257
 | #de  f278i | nceo nasbts lv_oniudl*l aabblsel __nNuullllaabbllee 
o      p| e                      ^r
ator<<(std::ostreIn file included from as2/s2edge_tessellator.ccm:&18,:
 In file included from s../src/s2/s2edge_tessellator.ht:d24::
:In file included from n../src/s2/s1angle.hu:l28l:
pIn file included from t../src/s2/s2point.hr:_27t:
)In file included from ;../src/s2/s2coder.h
:      23| :
            ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/status/internal/status_internal.h::2329::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nullable'968
:31:   257 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e968  | a b s l _vnouildl aEbmlpel a_cNeuTlrleaeb(lCeo
r      d| R                      ^e
p* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.hIn file included from :s2/s2edge_tessellator.cc25::
18In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2edge_tessellator.h21::
24In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s1angle.h37::
28In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2point.h21::
27:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h292::2313:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :29229 | :
c/usr/local/clang/include/absl/strings/cord.ho:n972s:t31 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* ab  s972l | _ n o n nvuolild  oEpmeprlaatcoerT<r<e(es(tCdo:r:dbRaespi*c _aobsstlr_enaomn<ncuhlalr ,r eTpr,a ictosn>s&t, 
I      n| l            ^i
ne/usr/local/clang/include/absl/base/nullability.hD:a241t:a22&:  pnote: aexpanded from macro 'absl_nonnull'r
en  t241, | 
#      d| e                              ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _NonnullIn file included from 
s2/s2furthest_edge_query.cc      :| 16                     ^:

In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2edge_tessellator.cc:  18293:
 | In file included from  ../src/s2/s2edge_tessellator.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 978 : 36 :  cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
st   c978h | a r *   avbosild_ nCoonmnmuiltlT)r;e
e      (| c                                                ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241C:o22r:d Rnote: eexpanded from macro 'absl_nonnull'p
*   a241b | s#ld_enfuilnlea balbes lo_lndo_nrneupl,l
       _| N                                   ^o
n/usr/local/clang/include/absl/base/nullability.hn:u257l:l23
:       | note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nullaIn file included from bs2/s2furthest_edge_query.ccl:e16 :
_In file included from N../src/s2/s2furthest_edge_query.hu:l25l:
aIn file included from b../src/s2/base/logging.hl:e21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                      ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: In file included from warning: s2/s2edge_tessellator.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2edge_tessellator.h:  24295:
 | In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from  ../src/s2/s2point.hs:i27g:
nIn file included from e../src/s2/s2coder.hd: 23c:
hIn file included from a/usr/local/clang/include/absl/status/status.hr:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n979n:u30l:l  warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
era  t979o | r < < ( s t d : : b a s i c _ o s t r e aCmo<rcdhRaerp,*  Tarbasilt_sn>o&n,n
u      l| l                   ^ 
re/usr/local/clang/include/absl/base/nullability.hp:,241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
Co  r241d | z#UdpedfaitneeS caobpsel&_ nsocnonpuel,l
       _| N                             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2furthest_edge_query.cco:n16n:
uIn file included from l../src/s2/s2furthest_edge_query.hl: 25_:
NIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h
:      37| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |         In file included from  s2/s2edge_tessellator.cc : 18 :
 In file included from  ../src/s2/s2edge_tessellator.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.hc:o982n:s39t:  swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
ned   982c | h a r *  vaobisdl _AnpopnennudlTlr)e;e
T      o| I                                                              ^n
li/usr/local/clang/include/absl/base/nullability.hn:e241d:(22C:o rnote: dexpanded from macro 'absl_nonnull'R
ep  *241  | a#bdself_innoen naublsll _tnroenen,u
l      l|                                        ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnulIn file included from ls2/s2furthest_edge_query.cc :_16N:
oIn file included from n../src/s2/s2furthest_edge_query.hn:u25l:
lIn file included from 
../src/s2/base/logging.h      :| 21                     ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2edge_tessellator.cc  :29818 | :
cIn file included from o../src/s2/s2edge_tessellator.hn:s24t:
 In file included from u../src/s2/s1angle.hn:s28i:
gIn file included from n../src/s2/s2point.he:d27 :
cIn file included from h../src/s2/s2coder.ha:r23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l984 :o36p:e rwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
or<<  (984s | t d : : bvaosiidc _AopspternedaTmr<ecehTaorT,r eTer(aCiotrsd>R&e,p
*       | a                     ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
tr  e241e | ,# dMeeftihnoed Iadbesnlt_infoinenru lmle t_hNoodn)n;u
l      l| 
                                   ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2furthest_edge_query.cce: 16a:
bIn file included from s../src/s2/s2furthest_edge_query.hl:_25n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.h_:N37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 299                     ^:
67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |         In file included from  s2/s2edge_tessellator.cc : 18 :
 In file included from  ../src/s2/s2edge_tessellator.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 985c:o30n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
nsig  n985e | d   c h avro*i da bAsplp_ennodnTnruelel()C;o
r      d| R                                                                  ^e
p*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #tdreefei,n eM eatbhsold_Indoennntuilfli e_rN omnentuhlold
)      ;| 
                     ^      
|                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2furthest_edge_query.ccl:
16      :
| In file included from                      ^../src/s2/s2furthest_edge_query.h
:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:In file included from 46s2/s2edge_tessellator.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2edge_tessellator.h
:24:
In file included from ../src/s2/s1angle.h  :32328 | :
 In file included from  ../src/s2/s2point.hf:r27i:
eIn file included from n../src/s2/s2coder.hd: 23v:
oIn file included from i/usr/local/clang/include/absl/status/status.hd: 67A:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:F29o:
r/usr/local/clang/include/absl/strings/cord.hm:a988t:F37l:u swarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
Stri  n988g | i f y S ivnoki*d  aPbrselp_ennodnTnruelelT osTirneke,(
C      o| r                                             ^d
Rep/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dterfeien,e  Maebtshlo_dnIodnennutlilf i_eNro nmneutlhlo
d      )| ;                     ^

      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_iIn file included from ns2/s2furthest_edge_query.ccf:o16(:
)In file included from  ../src/s2/s2furthest_edge_query.hc:o25n:
sIn file included from t../src/s2/base/logging.h :{21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                    ^:
37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::25721::
23:/usr/local/clang/include/absl/log/internal/check_op.h :428note: :expanded from macro 'absl_nullable'44
:   warning: 257 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n428e |  AaBbSsLl__AnTuTlRlIaBbUlTeE __RNEuTlUlRaNbSl_eN
O      N| N                      ^U
LL const char* abslIn file included from _s2/s2edge_tessellator.ccn:o18n:
nIn file included from u../src/s2/s2edge_tessellator.hl:l24 :
MIn file included from a../src/s2/s1angle.hk:e28C:
hIn file included from e../src/s2/s2point.hc:k27O:
pIn file included from S../src/s2/s2coder.ht:r23i:
nIn file included from g/usr/local/clang/include/absl/status/status.h(:
67      :
| In file included from                                            ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::2411017::2251::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |  #1017d | e f i n ev oaibds ls_ento_ncnourldlz __iNnofnon(uclolr
d      _| i                     ^n
ternal::CoIn file included from rs2/s2furthest_edge_query.ccd:z16I:
nIn file included from f../src/s2/s2furthest_edge_query.ho:*25 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
r/usr/local/clang/include/absl/log/internal/check_op.hd:z429_:i31n:f owarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{
      |                                                     ^429
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :T221:  vnote: 1expanded from macro 'absl_nonnull',
 T  2241  | v#2d,e fcionnes ta bcshla_rn*o nanbuslll_ n_oNnonnunlull le
x      p| r                     ^t
ext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:In file included from 16s2/s2edge_tessellator.cc:
:In file included from 18../src/s2/s2furthest_edge_query.h:
:In file included from 25../src/s2/s2edge_tessellator.h:
:In file included from 24../src/s2/base/logging.h:
:In file included from 21../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2coder.h:
:23/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 432/usr/local/clang/include/absl/status/status.h::1367::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
/usr/local/clang/include/absl/strings/cord.h:1049  :43256 | :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t ch a1049r | *   asbtsalt_inco nbnouolll  GMeatkFelCahteAcukxO(paSbtsrli:n:gc(oTr1d _vi1n,t eTr2n avl2:,:
C      o| r            ^d
Re/usr/local/clang/include/absl/base/nullability.hp:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld erfeipn,e
       a| b                                                       ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_noIn file included from ns2/s2furthest_edge_query.ccn:u16l:
lIn file included from  ../src/s2/s2furthest_edge_query.h_:N25o:
nIn file included from n../src/s2/base/logging.hu:l21l:

In file included from       /usr/local/clang/include/absl/log/check.h| :                     ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2edge_tessellator.cc:18  :
433In file included from  | ../src/s2/s2edge_tessellator.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1050 : 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1050  | c o n s t   c h a r *   a b s l _ n o n n u l l   eaxbpsrlt:e:xstt)r i{n
g      _| v                                                       ^i
ew/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dferfaignmee natb)s;l
_      n| o                                            ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2furthest_edge_query.ccs:l16_:
nIn file included from o../src/s2/s2furthest_edge_query.hn:n25u:
lIn file included from l../src/s2/base/logging.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                     ^:

/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CIn file included from Hs2/s2edge_tessellator.ccE:C18K:
_In file included from O../src/s2/s2edge_tessellator.hP:_24S:
TIn file included from R../src/s2/s1angle.hI:N28G:
_In file included from E../src/s2/s2point.hX:T27E:
RIn file included from N../src/s2/s2coder.h(:b23o:
oIn file included from l/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h^:
29:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h::1061449::3431::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

   1061449 |  |     veoxitde rCno ptyeTmopAlrartaey ScloonwsPta tchh(acrh*a ra*b salb_snlo_nnnounlnlu lMla kdesCth)e cckoOnpsStt;r
i      n| g                                 ^(
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                              ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2edge_tessellator.ccn:n18u:
lIn file included from l../src/s2/s2edge_tessellator.h :_24N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cordIn file included from _s2/s2furthest_edge_query.cci:n16t:
eIn file included from r../src/s2/s2furthest_edge_query.hn:a25l:
:In file included from :../src/s2/base/logging.hC:o21r:
dIn file included from R/usr/local/clang/include/absl/log/check.he:p37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o452n:n1u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ake  R452e | pA(B)S Lc_oLnOsGt_&I;N
T      E| R                                ^N
AL/usr/local/clang/include/absl/base/nullability.h_:D241E:F22I:N Enote: _expanded from macro 'absl_nonnull'M
AK  E241_ | C#HdEeCfKi_nOeP _aSbTsRlI_NnGo_nEnXuTlElR N_(Nionntn6u4l_lt
)      ;| 
                     ^      
| ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   exIn file included from ts2/s2edge_tessellator.cce:r18n:
 In file included from t../src/s2/s2edge_tessellator.he:m24p:
lIn file included from a../src/s2/s1angle.ht:e28 :
cIn file included from o../src/s2/s2point.hn:s27t:
 In file included from c../src/s2/s2coder.hh:a23r:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
n/usr/local/clang/include/absl/strings/cord.hu:l1079l: 33M:a kwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
hec k1079O | p S tarbisnlg:(: c o r\d
_      i| n                              ^t
er/usr/local/clang/include/absl/base/nullability.hn:a241l::22::C onote: rexpanded from macro 'absl_nonnull'd
Re  p241* |  #adbesfli_nneo nanbuslll_ nToankneuRlelp (_)N o&n&n;u
l      l| 
                                ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2furthest_edge_query.ccd:e16f:
iIn file included from n../src/s2/s2furthest_edge_query.he: 25a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u452l:l1
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.ccIn file included from :s2/s2edge_tessellator.cc16::
18In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :../src/s2/s2edge_tessellator.h25::
24In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s1angle.h21::
28In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2point.h37::
27In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2coder.h21::
23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h453::671:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/cord.h:1116:  37453: |  Awarning: Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S
L_LO G1116_ | I N TcEoRnNsAtL _cDrEcF_IiNnEt_eMrAnKaEl_:C:HCErCcKC_oOrPd_SStTaRtIeN*G _aEbXsTlE_RnNu(lulianbtl6e4 _Mta)y;b
e      G| e^t
Cr/usr/local/clang/include/absl/log/internal/check_op.hc:C449o:r31d:S tnote: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't
e()   449c | o n setx;t
e      r| n                                    ^ 
te/usr/local/clang/include/absl/base/nullability.hm:p257l:a23t:e  note: cexpanded from macro 'absl_nullable'o
ns  t257  | c#hdaerf*i naeb salb_snlo_nnnuulllla bMlaek e_CNhuelclkaObplSet
r      i| n                      ^g
(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2edge_tessellator.ccs:l18_:
nIn file included from o../src/s2/s2edge_tessellator.hn:n24u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:In file included from 30s2/s2furthest_edge_query.cc:: 16:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2furthest_edge_query.h
:25:
In file included from ../src/s2/base/logging.h :112021 | :
 In file included from  /usr/local/clang/include/absl/log/check.hv:o37i:
dIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hC:o21p:
y/usr/local/clang/include/absl/log/internal/check_op.hT:o453A:r1r:a ywarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl/usr/local/clang/include/absl/log/internal/check_op.h(:c450h:a25r:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl  _450n | o n n u l l  xd,s tx),  ccoonnsstt; 
c      h| a                             ^r
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241) | 
#      d| e                        ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2edge_crosser.cc21::
18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 454../src/s2/s2edge_crosser.h::123::
 In file included from warning: ../src/s2/s2edge_crossings.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
40:
In file included from ../src/s2/s1angle.h  :45428 | :
AIn file included from B../src/s2/s2point.hS:L27_:
LIn file included from O../src/s2/s2coder.hG:_23I:
NIn file included from T/usr/local/clang/include/absl/status/status.hE:R67N:
AIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:D29E:
FIn file included from I/usr/local/clang/include/absl/strings/cord.hN:E94_:
MIn file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hK:E31_:
CHE/usr/local/clang/include/absl/synchronization/mutex.hC:K489_:O14P:_ Swarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
ING_EX  T489E | R N ( f l o avto)i;d
       (| *^a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_449n:u31l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
e i  n449v | a r ieaxntte)r(nv otiedm*p laabtsel _cnounlslta bcihlairt*y _aubnskln_onwonn)n,u
l      l|               ^M
akeC/usr/local/clang/include/absl/base/nullability.hh:e257c:k23O:p Snote: texpanded from macro 'absl_nullable'r
in  g257( |  # d e\f
i      n| e                              ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241_ | N#udlelfaibnlee 
a      b| sl                      ^_
nonnullIn file included from  s2/s2edge_crosser.cc_:N18o:
nIn file included from n../src/s2/s2edge_crosser.hu:l23l:

In file included from       ../src/s2/s2edge_crossings.h| :                     ^40
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2furthest_edge_query.ccIn file included from :../src/s2/s2coder.h16::
23In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :/usr/local/clang/include/absl/status/status.h25::
67In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/cord.h37::
94In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h21::
31/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/synchronization/mutex.h454::4891::45 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25  :489  | note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  | v o i d   ( *xa,b sxl,_ ncuolnlsatb lceh airn*v aarbisaln_tn)o(nvnouildl*) 
a      b| s                        ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:i lnote: ity_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2edge_crosser.ccb:s18l:
_In file included from n../src/s2/s2edge_crosser.ho:n23n:
uIn file included from l../src/s2/s2edge_crossings.hl: 40_:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  In file included from 490s2/s2furthest_edge_query.cc | : 16 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 25v:
oIn file included from i../src/s2/base/logging.hd:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hi:l455i:t1y:_ uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
now  n455  | aArBgS)L;_
L      O| G            ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E289R:N34A:L _note: Dexpanded from macro 'absl_nullability_unknown'E
FI  N289E | _#MdAeKfEi_nCeH EaCbKs_In file included from lOs2/s2latlng_rect.cc_P:_n18Su:
lTIn file included from Rl../src/s2/s2latlng_rect.haI:bN26iGl:
i_In file included from tEy../src/s2/base/logging.hX_:Tu21En:
RkIn file included from Nn/usr/local/clang/include/absl/log/check.ho(:wd37no:
 uIn file included from _bN/usr/local/clang/include/absl/log/internal/check_impl.hlu:le21)l:
;_In file included from 
u/usr/local/clang/include/absl/log/internal/check_op.h      n:s| 40p^:
e
In file included from c/usr/local/clang/include/absl/log/internal/nullstream.hi/usr/local/clang/include/absl/log/internal/check_op.h:f:37i449e:
:d31/usr/local/clang/include/absl/strings/string_view.h
::       53| note:                                  ^:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
54
: warning:   449type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
  extern    t53e | In file included from mcs2/s2edge_crosser.ccpo:lna18stt:
eeIn file included from  x../src/s2/s2edge_crosser.hcp:orn23 s:
stIn file included from t r../src/s2/s2edge_crossings.hci:hn40agr:
_*vIn file included from  ia../src/s2/s1angle.heb:ws28 lN:
_uIn file included from nl../src/s2/s2point.hol:nS27nau:
fleIn file included from lS../src/s2/s2coder.h t:Mra23ikne:
gCIn file included from Vh/usr/local/clang/include/absl/status/status.hie:ecw67k(O:
cpoIn file included from Snt/usr/local/clang/include/absl/status/internal/status_internal.hsr:ti29 nc:
ghIn file included from (a/usr/local/clang/include/absl/strings/cord.h r :* 94 \a:

bIn file included from       s/usr/local/clang/include/absl/strings/internal/cordz_info.h| l                              ^:_
n31/usr/local/clang/include/absl/base/nullability.hu:
:l241l/usr/local/clang/include/absl/synchronization/mutex.h:a:22b499:l: e35note:  expanded from macro 'absl_nonnull':p
)    241warning: { | 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#      
d| e                                                     ^f  
i499n | e   /usr/local/clang/include/absl/base/nullability.hva:obi257sd:l 23_E:nn anote: obexpanded from macro 'absl_nullable'nl
neu  lD257le | b #u_gdLNeoofgni(nnucelo lna
sb      ts | lc                     ^_h
anru*l In file included from las2/s2furthest_edge_query.ccab:bs16ll:
_enIn file included from  u../src/s2/s2furthest_edge_query.h_l:Nl25ua:
bllIn file included from le../src/s2/base/logging.ha :bn21la:
emIn file included from 
e/usr/local/clang/include/absl/log/check.h)      ;:| 
37                      ^      :

| In file included from                                   ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::257455::231::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  /usr/local/clang/include/absl/log/internal/check_op.h257: | 450#:d25e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
 a  b450s | l _ n u l l axb,l ex ,_ Ncuolnlsatb lceh
a      r| *                      ^ 
absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2furthest_edge_query.ccIn file included from :/usr/local/clang/include/absl/strings/cord.h16::
94In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h25::
31In file included from :
../src/s2/base/logging.h/usr/local/clang/include/absl/synchronization/mutex.h::21549:
:In file included from 40/usr/local/clang/include/absl/log/check.h:: 37warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  /usr/local/clang/include/absl/log/internal/check_op.h549: | 456 : 1s:t awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
c v  o456i | dA BISnLc_rLeOmGe_nItNSTyEnRcNhASLe_mD(EMFuItNeEx_*M AaKbEs_lC_HnEoCnKn_uOlPl_ SmTuR,I
N      G| _                                       ^E
XT/usr/local/clang/include/absl/base/nullability.hE:R241N:(22c:h anote: rexpanded from macro 'absl_nonnull')
;
        | 241^ | 
#d/usr/local/clang/include/absl/log/internal/check_op.he:f449i:n31e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_n  o449n | n u lelx t_eNronn ntuelmlp
l      a| t                     ^e
 const char* aIn file included from bs2/s2edge_crosser.ccs:l18_:
nIn file included from o../src/s2/s2edge_crosser.hn:n23u:
lIn file included from l../src/s2/s2edge_crossings.h :M40a:
kIn file included from e../src/s2/s1angle.hC:h28e:
cIn file included from k../src/s2/s2point.hO:p27S:
tIn file included from r../src/s2/s2coder.hi:n23g:
(In file included from  /usr/local/clang/include/absl/status/status.h : 67\:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                              ^29
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  550241: | 64#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a  b550s | l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
      In file included from  s2/s2furthest_edge_query.cc : 16 :
bIn file included from a../src/s2/s2furthest_edge_query.hs:e25_:
iIn file included from n../src/s2/base/logging.ht:e21r:
nIn file included from a/usr/local/clang/include/absl/log/check.hl::37::
PIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:T21h:
r/usr/local/clang/include/absl/log/internal/check_op.he:a456d:S1y:n cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 /usr/local/clang/include/absl/log/internal/check_op.ha:b450s:l25_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
ul  l450  | w ) ; 
        |                                                                 ^x
, /usr/local/clang/include/absl/base/nullability.hx:,241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en oanbnsull_ln)o
n      n| u                        ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnullIn file included from  s2/s2edge_crosser.cc_:N18o:
nIn file included from n../src/s2/s2edge_crosser.hu:ll23
:
      In file included from | ../src/s2/s2edge_crossings.h                     ^:
40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2furthest_edge_query.cc551::1640:
:In file included from  ../src/s2/s2furthest_edge_query.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/base/logging.h:21  :
551In file included from  | /usr/local/clang/include/absl/log/check.h : 37s:
tIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.ht:i21c:
 /usr/local/clang/include/absl/log/internal/check_op.hb:o457o:l1 :D ewarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
eme  n457t | SAyBnScLh_SLeOmG(_MIuNtTeExR*N AaLb_sDlE_FnIoNnEn_uMlAlK Em_uC,H
E      C| K                                       ^_
OP/usr/local/clang/include/absl/base/nullability.h_:S241T:R22I:N Gnote: _expanded from macro 'absl_nonnull'
E  X241T | E#RdNe(fuinnsei ganbesdl _cnhoanrn)u;l
l       | _^N
on/usr/local/clang/include/absl/log/internal/check_op.hn:u449l:l31
:       | note:                      ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  449 |   exteIn file included from rs2/s2edge_crosser.ccn: 18t:
eIn file included from m../src/s2/s2edge_crosser.hp:l23a:
tIn file included from e../src/s2/s2edge_crossings.h :c40o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :M29a:
kIn file included from e/usr/local/clang/include/absl/strings/cord.hC:h94e:
cIn file included from k/usr/local/clang/include/absl/strings/internal/cordz_info.hO:p31S:
t/usr/local/clang/include/absl/synchronization/mutex.hr:i552n:g64(:   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                               ^
  552/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l lb a_sNeo_ninnutlelr
n      a| l                     ^:
:PerThIn file included from rs2/s2furthest_edge_query.cce:a16d:
SIn file included from y../src/s2/s2furthest_edge_query.hn:c25h:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
w/usr/local/clang/include/absl/log/internal/check_op.h,:
457      :| 1                                                               ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 450note: :expanded from macro 'absl_nonnull'25
:   note: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
#d  e450f | i n e   a b sxl,_ nxo,n ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2edge_crosser.cce:f18i:
nIn file included from e../src/s2/s2edge_crosser.h :a23b:
sIn file included from l../src/s2/s2edge_crossings.h_:n40o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   vIn file included from os2/s2furthest_edge_query.cci:d16 :
LIn file included from o../src/s2/s2furthest_edge_query.hc:k25S:
lIn file included from o../src/s2/base/logging.hw:L21o:
oIn file included from p/usr/local/clang/include/absl/log/check.h(:S37y:
nIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hh:W21a:
i/usr/local/clang/include/absl/log/internal/check_op.ht:P458a:r1a:m swarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l458_ | nAoBnSnLu_lLlO Gw_aIiNtTpE,R NiAnLt_ DfElFaIgNsE)_;M
A      K| E                                     ^_
CH/usr/local/clang/include/absl/base/nullability.hE:C241K:_22O:P _note: Sexpanded from macro 'absl_nonnull'T
RI  N241G | _#EdXeTfEiRnNe( caobnsslt_ nsotndn:u:lslt r_iNnogn&n)u;l
l      
|       ^| 
                     ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern In file included from ts2/s2edge_crosser.cce:m18p:
lIn file included from a../src/s2/s2edge_crosser.ht:e23 :
cIn file included from o../src/s2/s2edge_crossings.hn:s40t:
 In file included from c../src/s2/s1angle.hh:a28r:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
MIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hk:e29C:
hIn file included from e/usr/local/clang/include/absl/strings/cord.hc:k94O:
pIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.ht:r31i:
n/usr/local/clang/include/absl/synchronization/mutex.hg:(558 : 35 :\ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                              ^

/usr/local/clang/include/absl/base/nullability.h  :558241 | : 22 :b onote: oexpanded from macro 'absl_nonnull'l
 L  o241c | k#SdleofwiWniet haDbesald_lnionnen(uMlulH o_wN oanbnsull_ln
o      n| n                     ^u
ll how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2furthest_edge_query.ccexpanded from macro 'absl_nonnull':
16:
  In file included from 241../src/s2/s2furthest_edge_query.h | :#25d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l458 :_1N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll/usr/local/clang/include/absl/log/internal/check_op.h
:      450| :                     ^25
: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 | In file included from  s2/s2edge_crosser.cc : 18 :
 In file included from  ../src/s2/s2edge_crosser.hx:,23 :
xIn file included from ,../src/s2/s2edge_crossings.h :c40o:
nIn file included from s../src/s2/s1angle.hIn file included from t:s2/s2edge_tessellator.cc 28:c:
18hIn file included from :
a../src/s2/s2point.hIn file included from r:../src/s2/s2edge_tessellator.h*27: :
24aIn file included from :
b../src/s2/s2coder.hIn file included from s:../src/s2/s1angle.hl23:_:
28nIn file included from :
o/usr/local/clang/include/absl/status/status.hIn file included from n:../src/s2/s2point.hn67:u:
27lIn file included from :
l/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from ):../src/s2/s2coder.h
29:      :
23| In file included from :
                        ^/usr/local/clang/include/absl/strings/cord.hIn file included from 
:/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h94:::
67241In file included from :
:/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from 22:/usr/local/clang/include/absl/status/internal/status_internal.h:31: :
29note: /usr/local/clang/include/absl/synchronization/mutex.h:
expanded from macro 'absl_nonnull':
/usr/local/clang/include/absl/strings/cord.h559  ::241114046 | :#:49d :e warning: warning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i

ne    559a1140b |  | s  l   _  n  o n  n u  l  l    _  N  o  n  n  u  l  l  
          |                        ^  
              c oCnosrtd RCeopnEdIn file included from xis2/s2furthest_edge_query.cctt:ei16or:
nnIn file included from a*../src/s2/s2furthest_edge_query.hl :*a25 b:
asIn file included from bl../src/s2/base/logging.hs_:ln21_u:
nlIn file included from ol/usr/local/clang/include/absl/log/check.hna:nb37ul:
leIn file included from l /usr/local/clang/include/absl/log/internal/check_impl.h c:orn21de,:

p/usr/local/clang/include/absl/log/internal/check_op.h)      :;| 459                                             ^
:
      1| :/usr/local/clang/include/absl/base/nullability.h                                                ^ :
warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:/usr/local/clang/include/absl/base/nullability.h
23::241   :45922note:  | :Aexpanded from macro 'absl_nullable' B
note: Sexpanded from macro 'absl_nonnull'  L
257_   | L#241Od | G#e_dIfeNfTiinEenR eaN AbasLlb__sDnlEu_FlnIloaNnEbn_luMel AlK_ EN_u_NlColHnEanCbuKll_el
O
P            _| | S                     ^                      ^T
R
ING_EXTERN(const absl::sIn file included from ts2/s2edge_tessellator.ccr:i18In file included from n:
gs2/s2edge_crosser.ccIn file included from _:../src/s2/s2edge_tessellator.hv18:i:
24eIn file included from :
w../src/s2/s2edge_crosser.hIn file included from &:../src/s2/s1angle.h)23:;:
28
In file included from :
      ../src/s2/s2edge_crossings.hIn file included from | :../src/s2/s2point.h^40:
:
27/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :
:../src/s2/s1angle.hIn file included from 449:../src/s2/s2coder.h:28:31:
23:In file included from :
 ../src/s2/s2point.hIn file included from note: :/usr/local/clang/include/absl/status/status.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'27:
:
67In file included from :
  ../src/s2/s2coder.hIn file included from 449:/usr/local/clang/include/absl/status/internal/status_internal.h | 23: :
29 In file included from :
e/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.hx::t1146e67:r:
10nIn file included from : /usr/local/clang/include/absl/status/internal/status_internal.h t:warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29m
:
pIn file included from l a/usr/local/clang/include/absl/strings/cord.h1146t: | e94C :
ocIn file included from ro/usr/local/clang/include/absl/strings/internal/cordz_info.hdnR:se31tp:
 *c/usr/local/clang/include/absl/synchronization/mutex.h h:aab562rs:*l23 _a:nb osnwarning: lntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_u
nloln n  Nu562el | wlE   xvMtaoeikrdenC aLholcekRScleokwpO((MpuaSHbotsrwli :na:gbss(lt_ nr oin nnu\lgl
 _      hvo| wi,                              ^ e
cwo/usr/local/clang/include/absl/base/nullability.hn s:td241 aC:otn22dai:t, i
note: o      nexpanded from macro 'absl_nonnull'*|  
         ^a
  b241s/usr/local/clang/include/absl/base/nullability.h | l:_#241ndu:lel22af:bil nenote: eexpanded from macro 'absl_nonnull'  
ca  obn241ds | l,#
_d      ne| of                      ^ni
nnue/usr/local/clang/include/absl/base/nullability.hl l:a 241b_:sN22lo:_n nnonote: uexpanded from macro 'absl_nonnull'nl
nlu
  l      l241|                       ^_ | 
N#odnenfuilnle
       a| In file included from b                     ^s2/s2furthest_edge_query.ccs
l:_16n:
oIn file included from n../src/s2/s2furthest_edge_query.hn:u25l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2edge_crosser.cc::45018::
25In file included from :../src/s2/s2edge_crosser.h :note: 23expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from ../src/s2/s2edge_crossings.h:  40450:
 | In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.hx:,27 :
xIn file included from ,../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from n:s2/s2edge_tessellator.ccn31:u:
18l/usr/local/clang/include/absl/synchronization/mutex.h:
l:In file included from )562../src/s2/s2edge_tessellator.h
::      5824| ::
                        ^ In file included from 
warning: ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]::
28241:
:In file included from   22../src/s2/s2point.h562:: |   note: 27 expanded from macro 'absl_nonnull'v:

oIn file included from   i../src/s2/s2coder.hd241:  | L23o#c:
kdIn file included from Se/usr/local/clang/include/absl/status/status.hlf:io67wn(:
MeuIn file included from H o/usr/local/clang/include/absl/status/internal/status_internal.hwa: ba29sb:
s/usr/local/clang/include/absl/strings/cord.hll:__n1159onn:on17unl:ln  warning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]uo
lwl,   1159c_o | Nniosnntl nCiounnldeilt 
iCo      on| *r                      ^adb
sRle_pn*u lalbasbll_en ocnonnudl,l
       N| e                                                         ^w
EIn file included from x/usr/local/clang/include/absl/base/nullability.hs2/s2furthest_edge_query.cct::e25716r::
n23In file included from a:../src/s2/s2furthest_edge_query.hl :Rnote: 25eexpanded from macro 'absl_nullable':
p
In file included from (../src/s2/base/logging.h
  :      25721|  | :
                ^#In file included from 
d/usr/local/clang/include/absl/log/check.he:/usr/local/clang/include/absl/base/nullability.hf37:i:
241nIn file included from :e/usr/local/clang/include/absl/log/internal/check_impl.h22 ::a21 b:
note: /usr/local/clang/include/absl/log/internal/check_op.hsexpanded from macro 'absl_nonnull':l
460_  :n2411u | :l#l dawarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bf
ilne   e460_  | NaAubBlsSllLa__bnLloOenG
n_      uI| l                      ^NlT E
_RNNoAnLn_uDlElF
I      N| E                     ^_
MAKE_CHECK_OP_SIn file included from Ts2/s2edge_crosser.ccR:I18N:
GIn file included from _../src/s2/s2edge_crosser.hE:X23T:
EIn file included from R../src/s2/s2edge_crossings.hN:(40c:
oIn file included from n../src/s2/s1angle.hs:t28 :
cIn file included from h../src/s2/s2point.ha:r27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:)29;:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_op.h::31449:
:/usr/local/clang/include/absl/synchronization/mutex.h31::565 :note: 36expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
 warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]449
 |   e  x565t | e r nv otiedm pUlnaltoec kcSolnoswt( Scyhnacrh*W aaibtsPla_rnaomnsn*u lalb sMla_kneuClhleacbklOep Swtariitnpg)(  A B S\L
_      A| T                              ^T
RI/usr/local/clang/include/absl/base/nullability.hB:U241T:E22_:C Onote: Lexpanded from macro 'absl_nonnull'D
;
        241|  |                                    ^#
de/usr/local/clang/include/absl/base/nullability.hf:i257n:e23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  oIn file included from 257ns2/s2edge_tessellator.cc | n#:ud18le:
lfIn file included from i../src/s2/s2edge_tessellator.hn: e24_ :
NaIn file included from ob../src/s2/s1angle.hsn:ln_28nu:
ullIn file included from ll../src/s2/s2point.h
a:      b27| l:
e                     ^ In file included from _
../src/s2/s2coder.hN:u23lIn file included from :
ls2/s2furthest_edge_query.ccaIn file included from :b/usr/local/clang/include/absl/status/status.h16l::
e67
In file included from :
      ../src/s2/s2furthest_edge_query.hIn file included from | :/usr/local/clang/include/absl/status/internal/status_internal.h                      ^25:
:
29In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/strings/cord.h21::
1183In file included from :/usr/local/clang/include/absl/log/check.h47::37 :
In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:460 :118366 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       460  |  A B S L _ L O G _ I N T E R N A L _ D E F I NIn file included from  Es2/s2edge_crosser.cc _: M18 A:
CKIn file included from oE../src/s2/s2edge_crosser.hr_:dC23RH:
eEIn file included from pC../src/s2/s2edge_crossings.h*K: _40aO:
bPIn file included from s_l../src/s2/s1angle.hS_:Tn28Ru:
IlIn file included from Nl../src/s2/s2point.hGa:_b27El:
XeIn file included from T ../src/s2/s2coder.hEr:Re23Np:
()In file included from c
/usr/local/clang/include/absl/status/status.ho      :n| 67s                                              ^:
t
In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.hc::h29257a:
:rIn file included from 23*/usr/local/clang/include/absl/strings/cord.h: : a94note: bexpanded from macro 'absl_nullable':
s
lIn file included from _  /usr/local/clang/include/absl/strings/internal/cordz_info.hn257o: | n#31nd:
ue/usr/local/clang/include/absl/synchronization/mutex.hlf:li576)n:;e49
 :      a | bwarning:                                                                  ^stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
l
_/usr/local/clang/include/absl/base/nullability.hn:u241  l:576l22 | a : b vnote: olexpanded from macro 'absl_nonnull'ie
d    _T241rNy | uR#elmdolveea(fbbialsnee_ei
n       tae| rbn                      ^asl
l:_:nPoenrnTuhlrle a_dNSoynnncuhl*l 
a      b| s                     ^l
_nonnuIn file included from ls2/s2furthest_edge_query.ccl: 16s:
)In file included from ;../src/s2/s2furthest_edge_query.h
:      25| :
                                                ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/check.h::2237::
 In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 460#:d66e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      | In file included from                      ^s2/s2edge_crosser.cc
:18:
In file included from ../src/s2/s2edge_crosser.hIn file included from :s2/s2furthest_edge_query.cc23::
16In file included from :
../src/s2/s2edge_crossings.hIn file included from :../src/s2/s2furthest_edge_query.h40::
25In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/base/logging.h28::
21In file included from :
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/check.h::2737:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::46067::
1In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
460In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:L578O:G45_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L578_ | D E FvIoNiEd_ MBAlKoEc_kC(HbEaCsKe__OiPn_tSeTrRnIaNlG:_:EPXeTrETRhNr(ecaodnSsytn cchh*a ra*b salb_snlo_nnnounlnlu lsl));;

            | |                                             ^^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241450::2225::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

    241450 |  | # d e f i n ex ,a bxs,l _cnoonnsntu lclh a_rN*o nanbuIn file included from sls2/s2edge_tessellator.ccll:_
18n      :
o| In file included from                      ^n../src/s2/s2edge_tessellator.h
n:u24l:
lIn file included from )../src/s2/s1angle.h
:      28| :
                        ^In file included from 
../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22In file included from ::s2/s2edge_crosser.cc23 :note: :
18expanded from macro 'absl_nonnull'In file included from :

/usr/local/clang/include/absl/status/status.hIn file included from :  ../src/s2/s2edge_crosser.h67241::
 | 23In file included from #:
/usr/local/clang/include/absl/status/internal/status_internal.hdIn file included from :e../src/s2/s2edge_crossings.h29f::
i40/usr/local/clang/include/absl/strings/cord.hn:
:eIn file included from 1222 ../src/s2/s1angle.h:a:52b28:s:
 lIn file included from warning: _../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
o27n:
nIn file included from  u../src/s2/s2coder.h1222l: | l23i :
n_In file included from lN/usr/local/clang/include/absl/status/status.hio:nn67en:
 uIn file included from vl/usr/local/clang/include/absl/status/internal/status_internal.hol:i
29d      :
 | In file included from C                     ^/usr/local/clang/include/absl/strings/cord.ho
:r94d:
:In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.hI:n31l:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e580R:e34p:: :warning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]w
In file included from as2/s2furthest_edge_query.ccp  :(58016C | :
o In file included from r ../src/s2/s2furthest_edge_query.hbda:s:e25_:i:
InIn file included from nt../src/s2/base/logging.hle:ri21nna:
leIn file included from :R:/usr/local/clang/include/absl/log/check.hPee:pr37T*:
h rIn file included from ae/usr/local/clang/include/absl/log/internal/check_impl.hab:dsS21ly:
_n/usr/local/clang/include/absl/log/internal/check_op.hnc:ho461*n :anb1us:ll lwarning: _ ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ur
hlsl  )a461 b | {lA
eB       SW| aL                                                   ^k_e
LuOp/usr/local/clang/include/absl/base/nullability.hG(:
_241      I:| N22T                                 ^:E
 Rnote: /usr/local/clang/include/absl/base/nullability.hNexpanded from macro 'absl_nonnull':A
257L  :_24123D | :E# FdInote: eNexpanded from macro 'absl_nullable'fE
i_nM  eA 257Ka | E#bd_seCfliHn_eEn CoaKnb_snlO_unPul_lllS aTb_RlIeNN o_GNnu_lnlEuaXbllTlEe

R            N| | (                      ^                     ^


      | ^
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2edge_crosser.cc::44918::
31In file included from :../src/s2/s2edge_crosser.h :note: 23expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from ../src/s2/s2edge_crossings.h:40  :
449In file included from  | ../src/s2/s1angle.h : 28e:
xIn file included from t../src/s2/s2point.he:r27n:
 In file included from t../src/s2/s2coder.he:m23p:
lIn file included from a/usr/local/clang/include/absl/status/status.ht:e67 :
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:s29t:
 In file included from c/usr/local/clang/include/absl/strings/cord.hh:a94r:
*In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n581o:n38n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Mak  e581C | h e In file included from c s2/s2edge_tessellator.cc k : Ob18ap:
sSeIn file included from _ti../src/s2/s2edge_tessellator.hnrt:ie24rnn:
aglIn file included from :(:../src/s2/s1angle.hP e: r28T :
h\rIn file included from e
a../src/s2/s2point.hd      :S| y27n                              ^c:

hIn file included from /usr/local/clang/include/absl/base/nullability.h*../src/s2/s2coder.h :a:b241s23l:_:
22nIn file included from o:/usr/local/clang/include/absl/status/status.hn n:note: u67expanded from macro 'absl_nonnull'l:

lIn file included from    w/usr/local/clang/include/absl/status/internal/status_internal.h241):; | 
29#      :
d| /usr/local/clang/include/absl/strings/cord.he                                     ^:f
1230i:n/usr/local/clang/include/absl/base/nullability.h20e:: 241 a:warning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22s
:l _ nnote: 1230expanded from macro 'absl_nonnull'o | 
nin  nul241li | ln# dee_f iNnceo onannbssult_ln locn
nhu      la| lr                      ^_*
 NaobnIn file included from sns2/s2furthest_edge_query.ccul:_l16nl:
uIn file included from l
../src/s2/s2furthest_edge_query.hl      :a| 25                     ^b:

lIn file included from e../src/s2/base/logging.h :C21o:
rIn file included from d/usr/local/clang/include/absl/log/check.h:::37I:
nIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
R/usr/local/clang/include/absl/log/internal/check_op.he:p462:::24d:a twarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from (
s2/s2edge_crosser.cc):   18462c:
 | oIn file included from  n../src/s2/s2edge_crosser.h s: t23  :
c{In file included from o
../src/s2/s2edge_crossings.hn      :s| 40t                   ^:
 
In file included from s../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.hi::g28257n:
:eIn file included from 23d../src/s2/s2point.h: : c27note: h:
expanded from macro 'absl_nullable'aIn file included from 
r../src/s2/s2coder.h*  : 25723a | :
b#In file included from sd/usr/local/clang/include/absl/status/status.hle:_f67ni:
onIn file included from ne/usr/local/clang/include/absl/status/internal/status_internal.hn :ua29lb:
lsIn file included from )l/usr/local/clang/include/absl/strings/cord.h;_:
n94      u:
| lIn file included from                        ^l/usr/local/clang/include/absl/strings/internal/cordz_info.h
a:b/usr/local/clang/include/absl/base/nullability.h31l::
e241 /usr/local/clang/include/absl/synchronization/mutex.h:_:22N585:u: l20note: l:expanded from macro 'absl_nonnull'a 
bwarning:   ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241e
 | 
#      d| e                        ^f585
i | n e  vaobisdl _Tnroannnsu(lMlu H_oNwo nanbuslll_
n      o| n                     ^n
ull howIn file included from )s2/s2furthest_edge_query.cc;: 16In file included from  :
s2/s2edge_tessellator.cc/In file included from /: ../src/s2/s2furthest_edge_query.hu18s:e:
d25In file included from  :
../src/s2/s2edge_tessellator.hfIn file included from o:../src/s2/base/logging.hr24: :
C21oIn file included from :
n../src/s2/s1angle.hIn file included from d:V/usr/local/clang/include/absl/log/check.ha28:r:
-37>In file included from :
M../src/s2/s2point.huIn file included from :t/usr/local/clang/include/absl/log/internal/check_impl.he27x::
 21tIn file included from :
r../src/s2/s2coder.ha/usr/local/clang/include/absl/log/internal/check_op.hn:s:23f462e:
:rIn file included from 24
/usr/local/clang/include/absl/status/status.h:      : | warning: 67                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:


In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h:::29241241:
::/usr/local/clang/include/absl/strings/cord.h2222:::1234  :note: 20expanded from macro 'absl_nonnull'note: :
expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  241
241 |  | # #d1234ed | effiininnleei  naabesb slcl_o_nnnosnontnu nlcluh l_aNlro n*n_u Nlalo
bn      snl| u_l                     ^nl
o
n      n| u                     ^l
l CoIn file included from rs2/s2furthest_edge_query.ccd::16::
IIn file included from n../src/s2/s2furthest_edge_query.hl:i25nIn file included from :
es2/s2edge_crosser.ccIn file included from R:../src/s2/base/logging.he18:p:
21:In file included from :
:../src/s2/s2edge_crosser.hIn file included from a:/usr/local/clang/include/absl/log/check.hs23:_:
37cIn file included from :
h../src/s2/s2edge_crossings.hIn file included from a:/usr/local/clang/include/absl/log/internal/check_impl.hr40:s:
21(In file included from :
)/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1angle.h :c:461o28:n:
1sIn file included from :t../src/s2/s2point.h  :warning: {type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27

:
      In file included from |                      ^../src/s2/s2coder.h461
: | 23/usr/local/clang/include/absl/base/nullability.hA:
:BIn file included from 241S/usr/local/clang/include/absl/status/status.h:L:22_67:L:
 OIn file included from note: Gexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h_
:I29  N:
241TIn file included from  | E#/usr/local/clang/include/absl/strings/cord.hRdN:eA94fLi:
_nIn file included from De/usr/local/clang/include/absl/strings/internal/cordz_info.hE F:aIbN31sEl:
__M/usr/local/clang/include/absl/synchronization/mutex.hnAo:Kn586En:_u43ClH:lE  C_warning: KNtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_oO
nPn_uS  lTl586R
 | I        Nv| Go                     ^i_d
E XFTeErR(Nb(a
s      e| _^i
nt/usr/local/clang/include/absl/log/internal/check_op.he:r450n:a25l:: :note: Pexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
rT  h450r | e a d S y n cxh,* In file included from  xs2/s2edge_tessellator.cc,a: b18scl:
_onIn file included from onn../src/s2/s2edge_tessellator.hsn:utl24l :

cIn file included from       h../src/s2/s1angle.ha| :r                                          ^28*
:
 In file included from a/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.hb::s24127l::
_22In file included from n:../src/s2/s2coder.ho :n23nnote: :
uexpanded from macro 'absl_nonnull'In file included from l
/usr/local/clang/include/absl/status/status.hl:)  67
241:
       | In file included from #| d/usr/local/clang/include/absl/status/internal/status_internal.he                        ^f:i
n29e/usr/local/clang/include/absl/base/nullability.h :
:a/usr/local/clang/include/absl/strings/cord.hb241s:l:_123922n::o38n :note: n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lexpanded from macro 'absl_nonnull' 

_N  o n241n1239u |  | l#ild
ne      lfi| i                     ^nn
ee  aabbssll:_:ncoonrndu_liln t_eNIn file included from ronns2/s2edge_crosser.ccanlu::l18:l:
C
In file included from o      ../src/s2/s2edge_crosser.hr| :d                     ^R23
e:
pIn file included from *../src/s2/s2edge_crossings.h :a40b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from C../src/s2/s2coder.ho:r23In file included from d:
s2/s2furthest_edge_query.cc:In file included from ::/usr/local/clang/include/absl/status/status.h16I::
n67In file included from l:
../src/s2/s2furthest_edge_query.hiIn file included from :n/usr/local/clang/include/absl/status/internal/status_internal.h25e::
R29In file included from e:
../src/s2/base/logging.hpIn file included from ::/usr/local/clang/include/absl/strings/cord.h21:::
a94In file included from s:
/usr/local/clang/include/absl/log/check.h_In file included from :t/usr/local/clang/include/absl/strings/internal/cordz_info.h37r::
e31In file included from e:
/usr/local/clang/include/absl/log/internal/check_impl.h(/usr/local/clang/include/absl/synchronization/mutex.h:):21
590:
      :/usr/local/clang/include/absl/log/internal/check_op.h| 40:                                     ^:463
 :/usr/local/clang/include/absl/base/nullability.hwarning: 1:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:241
 :22warning: :   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]590note: 
expanded from macro 'absl_nonnull' | 
      e463241x | p | lA#iBdcSietLf _iMLnuOeGt e_axI(bcNosnTlsEt_ RvnNoolAantLin_lueDl EMluF tIe_NNxEo*_n MnaAbusKllE_ln_
uC      lHl| Ea                     ^Cb
Kl_eO P/_*SiTgRnIoNrGe_dE*X/T)E R{N}(

            | |                                        ^^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::257449::2331::  note: note: In file included from expanded from macro 'absl_nullable'expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's2/s2edge_tessellator.cc

:  18257  :
 | 449In file included from # | ../src/s2/s2edge_tessellator.hd e: f24ie:
nxIn file included from te../src/s2/s1angle.h ea:brs28ln_:
n In file included from ut../src/s2/s2point.hlel:ma27bpl:
el In file included from a_../src/s2/s2coder.htN:eu23 l:
clIn file included from ao/usr/local/clang/include/absl/status/status.hbn:lse67
t:
       In file included from | c/usr/local/clang/include/absl/status/internal/status_internal.h                      ^h:
a29r:
*/usr/local/clang/include/absl/strings/cord.h :a1245b:s38l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
null  1245M | aiknelCihneec kaObpsSlt:r:icnogr(d _ i n\t
e      r| n                              ^a
l:/usr/local/clang/include/absl/base/nullability.h::C241o:r22d:R enote: pexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneuflilnaeb laeb sClo_rndo:n:nIunllli n_eNRoenpn:u:ltlr
e      e| (                     ^)

      |                                      ^
In file included from s2/s2furthest_edge_query.cc/usr/local/clang/include/absl/base/nullability.h::16257:
:In file included from 23../src/s2/s2furthest_edge_query.h:: 25:
note: In file included from expanded from macro 'absl_nullable'../src/s2/base/logging.h
:21:
  In file included from 257/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b464s:l26_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ab  l464e |   _ N u lcloanbslte 
u      n| s                      ^i
gned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2edge_tessellator.cc::2218::
 In file included from ../src/s2/s2edge_tessellator.hnote: :expanded from macro 'absl_nonnull'24
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 /usr/local/clang/include/absl/strings/cord.h_:N1258o:n36n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1258 | iIn file included from ns2/s2furthest_edge_query.ccl:i16n:
eIn file included from  ../src/s2/s2furthest_edge_query.hc:o25r:
dIn file included from _../src/s2/base/logging.hi:n21t:
eIn file included from r/usr/local/clang/include/absl/log/check.hn:a37l:
:In file included from :/usr/local/clang/include/absl/log/internal/check_impl.hC:o21r:
d/usr/local/clang/include/absl/log/internal/check_op.hR:e463p:F1l:a twarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l463_ | nAoBnSnLu_lLlO
G      _| I                                   ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:D Enote: Fexpanded from macro 'absl_nonnull'I
NE  _241M | A#KdEe_fCiHnEeC Ka_bOsPl__SnToRnInNuGl_lE X_TNEoRnNn(u
l      l| 
^      
|                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEIn file included from Fs2/s2edge_tessellator.ccI:N18E:
_In file included from M../src/s2/s2edge_tessellator.hA:K24E:
_In file included from C../src/s2/s1angle.hH:E28C:
KIn file included from _../src/s2/s2point.hO:P27_:
SIn file included from T../src/s2/s2coder.hR:I23N:
GIn file included from _/usr/local/clang/include/absl/status/status.hE:X67T:
EIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hN:(29c:
o/usr/local/clang/include/absl/strings/cord.hn:s1268t: 51v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs l1268_ | nionnlniunlel )v;o
i      d|  ^C
or/usr/local/clang/include/absl/log/internal/check_op.hd::449::I31n:l inote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
Rep  :449: | E m pelxatceerTnr In file included from ets2/s2edge_crosser.ccee:(mC18pol:
raIn file included from dt../src/s2/s2edge_crosser.hRe:e 23pc*:
o In file included from na../src/s2/s2edge_crossings.hsb:ts 40lc:
_hnIn file included from ao../src/s2/s1angle.hrn*:n 28ua:
lbIn file included from ls l../src/s2/s2point.hr_en:po27,n
:
n      In file included from u| ../src/s2/s2coder.hl                                                  ^:l
23 :
/usr/local/clang/include/absl/base/nullability.hMIn file included from :a/usr/local/clang/include/absl/status/status.h241k::e6722C:
:hIn file included from  e/usr/local/clang/include/absl/status/internal/status_internal.hnote: cexpanded from macro 'absl_nonnull':k
29O  :
p241SIn file included from  | t/usr/local/clang/include/absl/strings/cord.h#rd:ien94fg:
i(In file included from n e/usr/local/clang/include/absl/strings/internal/cordz_info.h   :a\31b
:
s      l/usr/local/clang/include/absl/synchronization/mutex.h| _:                              ^n624
o:n/usr/local/clang/include/absl/base/nullability.h68n::u241 l:warning: l22 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:_
 Nnote: oexpanded from macro 'absl_nonnull'n
n  u  l624241l |  | 
 #       de| ex                     ^pf
liincei ta bMsult_enxoLnoncukl(lM u_tNeoxn&n umlul 
A      B| S                     ^L
_INTIn file included from Es2/s2furthest_edge_query.ccR:N16A:
LIn file included from _../src/s2/s2furthest_edge_query.hA:T25T:
RIn file included from I../src/s2/base/logging.hB:U21T:
EIn file included from _/usr/local/clang/include/absl/log/check.hIn file included from C:As2/s2edge_tessellator.ccP37T:U:
R18EIn file included from D:
_/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from B:Y../src/s2/s2edge_tessellator.h(21:t:
h24/usr/local/clang/include/absl/log/internal/check_op.hi:
:sIn file included from 465)../src/s2/s1angle.h:):66
28:      :
 | In file included from warning:                                                                    ^~~~../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
27:
In file included from ../src/s2/s2coder.h:  23465:
 | In file included from A/usr/local/clang/include/absl/status/status.hB:S67L:
_In file included from L/usr/local/clang/include/absl/status/internal/status_internal.hO:G29_:
I/usr/local/clang/include/absl/strings/cord.hN:T1275E:R51N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]D
EFIN E1275_ | MiAnKlEi_n/usr/local/clang/include/absl/synchronization/mutex.hCe:H 635EvC:oKi_29dO :PC_ oSrwarning: TdRtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:I
:NIGn_  lE635iX | n T eeExRRepNpl(:ic:coiEtn mMsptult eaxvcLooecikT(dMr*eu eat(beCxs*o larb_sdln_Rnooennpnn*uu llallb )ms;ul
)_       An| o                                                                 ^Bn
SnL/usr/local/clang/include/absl/base/nullability.hu_:lE241XlC: L22rU:SeI pVnote: E,expanded from macro 'absl_nonnull'
_
L      O  C| K241_                                                  ^ | F
#Ud/usr/local/clang/include/absl/base/nullability.heN:fC241Ti:InO22Ne(:m  unote: a)expanded from macro 'absl_nonnull'
b
      s|                               ^l241_
 | n#odne/usr/local/clang/include/absl/base/nullability.hnf:uil241nl:e 22 _:aN bosnote: nlnexpanded from macro 'absl_nonnull'_u
nlo  ln241
n |       u#| dl                     ^elf
 i_nNeo naIn file included from nbs2/s2furthest_edge_query.ccsul:_ln16oln:
n
uIn file included from       l../src/s2/s2furthest_edge_query.hl| :                      ^25_
N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2edge_crosser.ccl:l18 :
_In file included from N../src/s2/s2edge_crosser.ho:n23n:
uIn file included from In file included from l../src/s2/s2edge_crossings.hs2/s2edge_tessellator.ccl::
4018      :
:
| In file included from In file included from                      ^../src/s2/s1angle.h../src/s2/s2edge_tessellator.h
::2824:
In file included from :
In file included from s2/s2furthest_edge_query.ccIn file included from ../src/s2/s2point.h:../src/s2/s1angle.h:16:27:
28:
In file included from :
In file included from ../src/s2/s2furthest_edge_query.hIn file included from ../src/s2/s2coder.h:../src/s2/s2point.h:25:23:
27:
In file included from :
In file included from ../src/s2/base/logging.hIn file included from /usr/local/clang/include/absl/status/status.h:../src/s2/s2coder.h:21:67:
23:
In file included from :
In file included from /usr/local/clang/include/absl/log/check.hIn file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/status/status.h:37:29:
67:
In file included from :
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/status/internal/status_internal.h:21:94:
29/usr/local/clang/include/absl/log/internal/check_op.h:
:
:In file included from /usr/local/clang/include/absl/strings/cord.h465/usr/local/clang/include/absl/strings/internal/cordz_info.h:::1282131:::
47 /usr/local/clang/include/absl/synchronization/mutex.h:warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]641warning: 
:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]68  
:465  |  Awarning: 1282B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | S
iLn_lLiO  nG641e_  | Iv No TeixEdpRl iNcCiAotL r_MduDt:eEx:FLIIonNlcEik_(nMMeuAtReKxeE&p_ :mC:uH SAEeBCtSKTL__rIONePeT_(SECTRoRNrIAdLN_RAGTeT_RpIE*BXU TTaEE_bCRAsNlP(_TcUnoRonnEsDnt_u BlYv(lot irhdies*)p ,,a

b            s| | l                                                                   ^~~~                                              ^_

no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:) ;note: 
expanded from macro 'absl_nonnull'      
| ^  
241 | /usr/local/clang/include/absl/log/internal/check_op.h#:d450e:f25i:n enote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
bs  l450_ | n /usr/local/clang/include/absl/synchronization/mutex.ho :n 649n :u 29l :lx  ,warning: _ Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]xo
,n ncuo  ln649ls | 
 t        e| cx                     ^hp
lairc*i ta bMsult_enxoLnoncukl(lM)u
t      e| x                        ^*
 /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | m#ud,e fcionnes ta bIn file included from Css2/s2edge_tessellator.cclo:_n18dni:
toiIn file included from on../src/s2/s2edge_tessellator.hnn:&u24 l:
lcIn file included from o n../src/s2/s1angle.hd_:)N28
o:
n      In file included from n| ../src/s2/s2point.h                            ^u:
l27l:

/usr/local/clang/include/absl/base/nullability.hIn file included from       :../src/s2/s2coder.h| 241:                     ^:23
22:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241/usr/local/clang/include/absl/strings/cord.h | :#1290d:e54f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl _1290n | oinnnluilnle  _vNIn file included from oos2/s2furthest_edge_query.ccin:ndu16 l:
lCIn file included from o
../src/s2/s2furthest_edge_query.hr      :d| 25:                     ^:
:
In file included from I../src/s2/base/logging.hn:l21i:
nIn file included from e/usr/local/clang/include/absl/log/check.hR:e37p:
:In file included from :/usr/local/clang/include/absl/log/internal/check_impl.hS:e21t:
T/usr/local/clang/include/absl/log/internal/check_op.hr:e502e:O1r:E mwarning: ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
y(C  o502r | dARBeSpL*_ LaObGs_lI_NnTuElRlNaAbLl_eC HrEeCpK,_
O      P| _                                                     ^I
MP/usr/local/clang/include/absl/base/nullability.hL:(257C:h23e:c knote: _expanded from macro 'absl_nullable'EQ
,   =257= | )#
d      e| f^i
ne/usr/local/clang/include/absl/log/internal/check_op.h :a488b:s32l:_ nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
lab  l488e |   _ Niunlllianbel ec
o      n| s                      ^t
expr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullaIn file included from bs2/s2edge_tessellator.ccl:e18
:
      In file included from | ../src/s2/s2edge_tessellator.h                      ^:
24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2furthest_edge_query.ccIn file included from :/usr/local/clang/include/absl/status/status.h16::
67In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h25::
29In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/strings/cord.h21:In file included from :
1301s2/s2edge_crosser.ccIn file included from ::/usr/local/clang/include/absl/log/check.h5618:::
37 In file included from :
warning: ../src/s2/s2edge_crosser.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h23::
21 In file included from :
1301/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2edge_crossings.h | ::i502n40:l:
1iIn file included from :n../src/s2/s1angle.h e:warning:  28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v:

oIn file included from /usr/local/clang/include/absl/log/internal/check_op.hi../src/s2/s2point.h:d:489 27:C:
47oIn file included from :r../src/s2/s2coder.h d:note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'23:
:
IIn file included from n/usr/local/clang/include/absl/status/status.h  l:489i67 | n :
e RIn file included from  e /usr/local/clang/include/absl/status/internal/status_internal.hp :: :29cCo:
onmIn file included from smt/usr/local/clang/include/absl/strings/cord.hi t:TT194r&e:
 evIn file included from (1c/usr/local/clang/include/absl/strings/internal/cordz_info.h,o: nc31sot:
n s/usr/local/clang/include/absl/synchronization/mutex.hCto: rT670d2R:&e 74pv*:2 , a bcwarning: soln'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_sn
tu lclha  abr670l*e |     aoeblxsdpl_l_rinecopin,tn
 u      Rl| ela                                                       ^ d
eex/usr/local/clang/include/absl/base/nullability.hrp:Mru257tt:ee23xx:Lt o)cnote:  expanded from macro 'absl_nullable'k{
 (   M257 u |  #t de\e
fx      i&| n                                              ^ e
 ma/usr/local/clang/include/absl/base/nullability.hub: s241lA:_B22nS:uL l_note: lexpanded from macro 'absl_nonnull'Ia
bNlT  eE241R  | _N#NAduLel_fAlTianTbeRl eaI
bB      sU| lT                      ^E_
_nConAnPuTlUlRIn file included from  Es2/s2edge_tessellator.cc_D:_N18oB:
nYIn file included from (nt../src/s2/s2edge_tessellator.hhu:li24ls:
)
In file included from )      ../src/s2/s1angle.h
| :                     ^      28
| :
                                                                         ^~~~In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |           /usr/local/clang/include/absl/synchronization/mutex.h : 678 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       678  |      e x p l i c i t   R e a dCeorrMduRteepx*L oacbks(lM_untoenxIn file included from n*s2/s2furthest_edge_query.cc ua:lb16sl:
l _In file included from rn../src/s2/s2furthest_edge_query.heo:np25n,u:

lIn file included from       l../src/s2/base/logging.h | m:                                                 ^u21
):
 In file included from /usr/local/clang/include/absl/base/nullability.hA/usr/local/clang/include/absl/log/check.hB::S24137L::
_22In file included from S:/usr/local/clang/include/absl/log/internal/check_impl.hH :Anote: 21Rexpanded from macro 'absl_nonnull'E:

D/usr/local/clang/include/absl/log/internal/check_op.h  _:241L502O | :#C1Kd_:eF fUwarning: iNtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nC
eT /usr/local/clang/include/absl/log/internal/check_op.hIa:Ob497Ns:(l32_m:nu o)note: n
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n      
u| l                                  ^l   
497_ | N/usr/local/clang/include/absl/base/nullability.h o: n241in:nu22ll:iln 
note: e      expanded from macro 'absl_nonnull' | 
c                     ^o  
n241s | t#edxepfri nceo nasbts lc_hnaorn*n ualbls l__Nnounlnlualbll
e       | n                     ^a
me##Impl(In file included from  s2/s2edge_tessellator.cc : 18 :
 In file included from  ../src/s2/s2edge_tessellator.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
\In file included from 
../src/s2/s2coder.h      :| 23                               ^:

In file included from In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2edge_crosser.cc/usr/local/clang/include/absl/status/status.h:::2571867::
:
23In file included from In file included from :../src/s2/s2edge_crosser.h/usr/local/clang/include/absl/status/internal/status_internal.h :note: :expanded from macro 'absl_nullable'2329
:
:
  In file included from /usr/local/clang/include/absl/strings/cord.h257../src/s2/s2edge_crossings.h: | :1312#40:d:
38eIn file included from :f../src/s2/s1angle.h i:warning: n28type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e:

 In file included from a../src/s2/s2point.hb s:1312l27 | _:
inIn file included from null../src/s2/s2coder.hiln:aeb23 la:
eb In file included from s_l/usr/local/clang/include/absl/status/status.hN:u::lc67loa:
rbdIn file included from l_e/usr/local/clang/include/absl/status/internal/status_internal.hi
n:      t29| e                      ^:
r
nIn file included from a/usr/local/clang/include/absl/strings/cord.hl::94In file included from ::
s2/s2furthest_edge_query.ccCIn file included from :o/usr/local/clang/include/absl/strings/internal/cordz_info.h16r::
d31In file included from R:
../src/s2/s2furthest_edge_query.he/usr/local/clang/include/absl/synchronization/mutex.h:p:25*681:
 :In file included from a74../src/s2/base/logging.hb::s 21lwarning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_In file included from 
n/usr/local/clang/include/absl/log/check.hu:l37l:
a  In file included from b681/usr/local/clang/include/absl/log/internal/check_impl.hl | :e 21  :
C/usr/local/clang/include/absl/log/internal/check_op.heo:xr502pd::l1:i:Ic niwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ti
 n/usr/local/clang/include/absl/log/internal/check_op.hRe:Re498ea:pd35:e::r cMnote: ulexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'te
aerx  L(o498)c |  k {(
M       u | t                                      ^e 
x &i /usr/local/clang/include/absl/base/nullability.hnm:tu257  :Av23B1S:L, _ note: IiNexpanded from macro 'absl_nullable'Tn
EtR   Nv257A2L | ,#_ dAceTofTniRsIntBeU  cTahbEas_rlC*_A nPauTblUslRlaE_bDnl_oeBn Yn_(uNtluhlli lsea)xb,pl
re      t
| e                                                                         ^~~~      x
| t                      ^)
 {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 689#:d35e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l689_ | n o nenxupllli c_iNto nRneualdle
r      M| u                     ^t
exLock(MuteIn file included from xs2/s2edge_tessellator.cc*: 18a:
bIn file included from s../src/s2/s2edge_tessellator.hl:_24n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hm:u27,:
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/status/status.hC:o67n:
dIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.ht:i29o:
n/usr/local/clang/include/absl/strings/cord.h&: 1321c:o48n:d )warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                   ^ 
1321 | i/usr/local/clang/include/absl/base/nullability.hn:l241i:n22e:  vnote: oexpanded from macro 'absl_nonnull'i
d   C241o | r#dd:e:fIinnlei naebRselp_:n:oCnonpuylTlo A_rNroanyn(uclhla
r      *|                       ^a
bsl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nulIn file included from ls2/s2furthest_edge_query.cca:b16i:
lIn file included from i../src/s2/s2furthest_edge_query.ht:y25_:
uIn file included from n../src/s2/base/logging.hk:n21o:
wIn file included from n/usr/local/clang/include/absl/log/check.h :_37N:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:_21u:
ns/usr/local/clang/include/absl/log/internal/check_op.hp:e503c:i1f:i ewarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                                  ^
  503 | ABSL_LOG_INTEIn file included from Rs2/s2edge_crosser.ccN:A18L:
_In file included from C../src/s2/s2edge_crosser.hH:E23C:
KIn file included from _../src/s2/s2edge_crossings.hO:P40_:
IIn file included from M../src/s2/s1angle.hP:L28(:
CIn file included from h../src/s2/s2point.he:c27k:
_In file included from N../src/s2/s2coder.hE:,23 :
!In file included from =/usr/local/clang/include/absl/status/status.h):
67      :
| In file included from ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/cord.h488::9432:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'31
:
/usr/local/clang/include/absl/synchronization/mutex.h:815  :48816 | :   warning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
lin  e815  | c o n s t e x p r   c o nTs*t  acbhsalr_*n ualblsalb_inluiltlya_bulnek nnoawmne #a#rIgm)p;l
(       |                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note: expanded from macro 'absl_nullability_unknown'
    289  |  # d e f\i
n      e|                                 ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:u23l:l anote: bexpanded from macro 'absl_nullable'i
li  t257y | _#udnekfnionwen  a_bNsull_ln_uulnlsapbelcei f_iNeudl
l      a| b                                 ^l
e
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2edge_crosser.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2edge_crosser.h37::
23In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2edge_crossings.h21::
40/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 503../src/s2/s1angle.h::128::
 In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h489::2347:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29489:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31n:
s/usr/local/clang/include/absl/synchronization/mutex.ht: 830T:114&:  vwarning: 1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 co  n830s | t   T 2 &   vb2o,o lc o(n*satb sclh_anro*n naublsll _fnuonncn)u(lTl*  eaxbpsrlt_enxutl)l a{b i l i t y\_
u      n| k                                              ^n
ow/usr/local/clang/include/absl/base/nullability.hn:)241,:
22      :|               ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullIn file included from as2/s2furthest_edge_query.ccb:i16l:
iIn file included from t../src/s2/s2furthest_edge_query.hy:_25u:
nIn file included from k../src/s2/base/logging.hn:o21w:
nIn file included from )/usr/local/clang/include/absl/log/check.h,:
37      :
| In file included from                                    ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/check_op.h289::50334::1 : note: warning: expanded from macro 'absl_nullability_unknown'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  /usr/local/clang/include/absl/log/internal/check_op.h289: | 497#:d32e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 abs  l497_ | n u lilnalbiinlei tcyo_nusntkenxopwrn  c_oNnusltl _cuhnasrp*e caibfsile_dn
u      l| l                                 ^a
ble name##Impl(         In file included from  s2/s2edge_crosser.cc : 18 :
 In file included from  ../src/s2/s2edge_crosser.h : 23 :
 In file included from \../src/s2/s2edge_crossings.h
:      40| :
                               ^In file included from 
../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2point.h::2327::
 In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nullable':
23:
  In file included from 257/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l831e: 46_:N uwarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
able  
831       | |                        ^ 
    typenIn file included from as2/s2furthest_edge_query.ccm:e16 :
aIn file included from b../src/s2/s2furthest_edge_query.hs:l25::
:In file included from t../src/s2/base/logging.hy:p21e:
_In file included from i/usr/local/clang/include/absl/log/check.hd:e37n:
tIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.ht:y21<:
T/usr/local/clang/include/absl/log/internal/check_op.h>::503::t1y:p ewarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
a/usr/local/clang/include/absl/log/internal/check_op.hb:s498l:_35n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
bil  i498t | y _ u n k n oiwnnt
       v| 1                                             ^,
 i/usr/local/clang/include/absl/base/nullability.hn:t289 :v342:,  note: cexpanded from macro 'absl_nullability_unknown'o
ns  t289  | c#hdaerf*i naeb salb_snlo_nnnuulllla beixlpirttye_xutn)k n{o w n   _ N u l l _ u n s p e c i f\i
e      d| 
                                  ^      
|                                  ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2edge_crosser.ccN:o18n:
nIn file included from u../src/s2/s2edge_crosser.hl:l23
:
      In file included from | ../src/s2/s2edge_crossings.h                     ^:
40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identitIn file included from ys2/s2edge_tessellator.cc<:T18>:
:In file included from :../src/s2/s2edge_tessellator.ht:y24p:
eIn file included from :../src/s2/s1angle.h::*28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :m67e:
tIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.ho:d29):
()/usr/local/clang/include/absl/strings/cord.h):;1505
:      41| :                                            ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:  note: 1505expanded from macro 'absl_nonnull' | 
in  l241i | n#ed evfoiinde  Caobrsdl:_:nCoonpyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
null _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2edge_tessellator.cc:/usr/local/clang/include/absl/synchronization/mutex.h18::
850In file included from :../src/s2/s2edge_tessellator.h16::24 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from   ../src/s2/s2point.h850: | 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from T/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
b/usr/local/clang/include/absl/strings/cord.hs:l1530_:n55o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l ob j1530e | citn,l
i      n| e               ^ 
Cor/usr/local/clang/include/absl/base/nullability.hd::241::C22h:u nnote: kexpanded from macro 'absl_nonnull'I
te  r241a | t#odre:f:iCnheu nakbIstle_rnaotnonru(lclo n_sNto nCnourldl*
       a| b                     ^s
l_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2edge_crosser.cc241::1822:
:In file included from  ../src/s2/s2edge_crosser.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from   ../src/s2/s2edge_crossings.h241: | 40#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
In file included from 94      s2/s2furthest_edge_query.cc:
| :In file included from                      ^16/usr/local/clang/include/absl/strings/internal/cordz_info.h
:
:In file included from 31../src/s2/s2furthest_edge_query.h:
:25/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 851../src/s2/base/logging.h::4521::
 In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :85121 | :
 /usr/local/clang/include/absl/log/internal/check_op.h : 504 : 1 :b owarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 (a  b504s | lA:B:StLy_pLeO_Gi_dIeNnTtEiRtNyA<LT_>C:H:EtCyKp_eO:P:_*I MaPbLs(lC_hneocnkn_uLlEl,  m<e=t)h
o      d| )^(
)
      /usr/local/clang/include/absl/log/internal/check_op.h| :                                            ^488
:32:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
22:   note: 488expanded from macro 'absl_nonnull' | 
    i241n | l#idneef icnoen satbesxlp_rn ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^u
llable name##Impl(           In file included from  s2/s2edge_crosser.cc : 18 :
 In file included from  ../src/s2/s2edge_crosser.h : 23\:

In file included from       ../src/s2/s2edge_crossings.h| :                               ^40
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28257:
:In file included from 23../src/s2/s2point.h:: 27note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2coder.h:23  :
257In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31a:
b/usr/local/clang/include/absl/synchronization/mutex.hl:e855 :_34N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble  
855       | |                        ^ 
explicit CondIn file included from is2/s2furthest_edge_query.cct:i16o:
nIn file included from (../src/s2/s2furthest_edge_query.hc:o25n:
sIn file included from t../src/s2/base/logging.h :b21o:
oIn file included from l/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n504u:l1l:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
d)/usr/local/clang/include/absl/log/internal/check_op.h;:
489      :| 47                                 ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
241:22:   489note:  | expanded from macro 'absl_nonnull' 
     241  |  #cdoenfsitn eT 1a&b svl1_,n ocnonnusltl  T_2N&o nvn2u,l lc
o      n| s                     ^t
 char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2edge_crosser.cci:n18e:
 In file included from a../src/s2/s2edge_crosser.hb:s23l:
_In file included from n../src/s2/s2edge_crossings.ho:n40n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2furthest_edge_query.ccn:n16u:
lIn file included from l../src/s2/s2furthest_edge_query.h
:      25| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable nIn file included from as2/s2edge_crosser.ccm:e18#:
#In file included from I../src/s2/s2edge_crosser.hm:p23l:
(In file included from  ../src/s2/s2edge_crossings.h : 40 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
\In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                               ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
257In file included from :/usr/local/clang/include/absl/strings/cord.h23::94 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31  :
257/usr/local/clang/include/absl/synchronization/mutex.h | :#896d:e31f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _896n | u l leaxbpllei c_iNtu lCloanbdliet
i      o| n                      ^(
const T*In file included from  s2/s2furthest_edge_query.cca:b16s:
lIn file included from _../src/s2/s2furthest_edge_query.hn:o25n:
nIn file included from u../src/s2/base/logging.hl:l21 :
oIn file included from b/usr/local/clang/include/absl/log/check.hj:)37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                              ^:
21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241504::221::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  /usr/local/clang/include/absl/log/internal/check_op.h241: | 498#:d35e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 ab  s498l | _ n o n n u liln t_ Nvo1n,n uilnlt
       v| 2                     ^,
 const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2edge_crosser.cc29::
18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1666../src/s2/s2edge_crosser.h::4823::
 In file included from warning: ../src/s2/s2edge_crossings.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
40:
In file included from ../src/s2/s1angle.h: 281666:
 | In file included from i../src/s2/s2point.hn:l27i:
nIn file included from e../src/s2/s2coder.h :C23o:
rIn file included from d/usr/local/clang/include/absl/status/status.h :C67o:
rIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h:::29A:
dIn file included from v/usr/local/clang/include/absl/strings/cord.ha:n94c:
eIn file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hn:d31R:
ea/usr/local/clang/include/absl/synchronization/mutex.hd:(922C:h48a:r Iwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
rator  *922  | a b sslt_antoincn ublolo li tG,u
a      r| a                                               ^n
tee/usr/local/clang/include/absl/base/nullability.hd:E241q:u22a:l (note: cexpanded from macro 'absl_nonnull'o
ns  t241  | C#odnedfiitnieo na*b salb_snlo_nnnuulllla b_lNeo nan,u
l      l| 
                                               ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from In file included from s2/s2edge_tessellator.cc../src/s2/s2edge_crossings.h::1840:
:
In file included from In file included from ../src/s2/s2edge_tessellator.h../src/s2/s1angle.h::2428:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2point.h::2827:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2coder.h::2723:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/status/status.h::2367:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/internal/status_internal.h::6729:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/cord.h::2994:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h1672::3141:
:/usr/local/clang/include/absl/synchronization/mutex.h :warning: 923type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
48: warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]1672
 | in  l923i | n e   v o i d   C o r d : : A d v a n c e ( C h a r I t e r actoonrs*t  aCbosnld_intoinonnu*l la bistl,_ nsuilzlea_btl en _bb)y;t
e      s| )                                               ^ 
{
      /usr/local/clang/include/absl/base/nullability.h| :                                        ^257
:23:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nullable'22
:   note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbuslll_anbolnen u_lNlu l_lNaobnlneu
l      l| 
                      ^      
|                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullablIn file included from es2/s2furthest_edge_query.cc
:      16| :
                      ^In file included from 
../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2edge_crosser.cc/usr/local/clang/include/absl/log/check.h::1837:
:
In file included from In file included from ../src/s2/s2edge_crosser.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
In file included from ../src/s2/s2edge_crossings.h/usr/local/clang/include/absl/log/internal/check_op.h::40505:
:In file included from 1../src/s2/s1angle.h:: 28warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h505: | 23A:
BIn file included from S/usr/local/clang/include/absl/status/status.hL:_67L:
OIn file included from G/usr/local/clang/include/absl/status/internal/status_internal.h_:I29N:
TIn file included from E/usr/local/clang/include/absl/strings/cord.hR:N94A:
LIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hC:H31E:
C/usr/local/clang/include/absl/synchronization/mutex.hK:_948O:P48_:I Mwarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
(Ch  e948c | k _ LbTo,o l< )(
*      a| b^s
l_/usr/local/clang/include/absl/log/internal/check_op.h:488:32n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
ble   488e | va l _i)n(lcionnes tc oCnosntdeixtpiro nc*o nasbts lc_hnaorn*n ualbls)l _=n unlullalbplter ;n
a      m| e                                               ^#
#I/usr/local/clang/include/absl/base/nullability.hm:p241l:(22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                               ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nullable _NullIn file included from as2/s2edge_crosser.ccb:l18e:

In file included from       ../src/s2/s2edge_crosser.h| :                      ^23
:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2furthest_edge_query.cc::2316:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2furthest_edge_query.h::6725:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::9437:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::951505::91::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  /usr/local/clang/include/absl/log/internal/check_op.h951: | 489 : 47v:o inote: dexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'*
 ab  s489l | _ n u l l a bcloen satr gT_1 &=  vn1u,l lcpotnrs;t
       T| 2        ^&
 v/usr/local/clang/include/absl/base/nullability.h2:,257 :c23o:n snote: texpanded from macro 'absl_nullable' 
ch  a257r | *# daebfsiln_en oanbnsull_ln uelxlparbtleex t_)N u{l l a b l e\

            | |                       ^                                              ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2edge_crosser.ccd:e18f:
iIn file included from n../src/s2/s2edge_crosser.he: 23a:
bIn file included from s../src/s2/s2edge_crossings.hl:_40n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2furthest_edge_query.cco:n16n:
uIn file included from l../src/s2/s2furthest_edge_query.hl: 25_:
NIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h
:      37| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from s2/s2edge_crosser.cc  :49718 | :
 In file included from  ../src/s2/s2edge_crosser.hi:n23l:
iIn file included from n../src/s2/s2edge_crossings.he: 40c:
oIn file included from n../src/s2/s1angle.hs:t28e:
xIn file included from p../src/s2/s2point.hr: 27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
cIn file included from h/usr/local/clang/include/absl/status/status.ha:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31 :
n/usr/local/clang/include/absl/synchronization/mutex.ha:m956e:#52#:I mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
(      956  |      s t a t i c   b o o l  \C
a      s| t                               ^A
nd/usr/local/clang/include/absl/base/nullability.hC:a257l:l23F:u nnote: cexpanded from macro 'absl_nullable't
io  n257( | c#odnesfti nCeo nadbistli_onnu*l laabbslle_ n_oNnunlullalb lce)
;      
|                             ^| 
                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2furthest_edge_query.cc
:16:
  In file included from 241../src/s2/s2furthest_edge_query.h | :#25d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l505 :_1N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
l/usr/local/clang/include/absl/log/internal/check_op.hl:
498      :| 35                     ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1In file included from ,s2/s2edge_crosser.cc :i18n:
tIn file included from  ../src/s2/s2edge_crosser.hv:223,:
 In file included from c../src/s2/s2edge_crossings.ho:n40s:
tIn file included from  ../src/s2/s1angle.hc:h28a:
rIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:p29r:
tIn file included from e/usr/local/clang/include/absl/strings/cord.hx:t94):
 In file included from {/usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 958 : 50 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      958\ | 
        | s                                  ^t
at/usr/local/clang/include/absl/base/nullability.hi:c241 :b22o:o lnote:  expanded from macro 'absl_nonnull'C
as  t241A | n#ddCeaflilnMee tahbosdl(_cnoonnsntu lClo n_dNiotninounl*l 
a      b| s                     ^l
_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLogIn file included from (s2/s2furthest_edge_query.ccc:o16n:
sIn file included from t../src/s2/s2furthest_edge_query.h :c25h:
aIn file included from r../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
le/usr/local/clang/include/absl/log/internal/check_op.h :n506a:m1e:) ;warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                   ^
  /usr/local/clang/include/absl/base/nullability.h506: | 257A:B23S:L _note: Lexpanded from macro 'absl_nullable'O
G_  I257N | T#EdReNfAiLn_eC HaEbCsKl__OnPu_lIlMaPbLl(eC h_eNcukl_lGaEb,l e>
=      )| 
                      ^      
| ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline consIn file included from ts2/s2edge_crosser.cce:x18p:
rIn file included from  ../src/s2/s2edge_crosser.hc:o23n:
sIn file included from t../src/s2/s2edge_crossings.h :c40h:
aIn file included from r../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
uIn file included from l../src/s2/s2coder.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/status/status.h :n67a:
mIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h#:#29I:
mIn file included from p/usr/local/clang/include/absl/strings/cord.hl:(94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1091 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    \1091
 |        |                                 ^b
oo/usr/local/clang/include/absl/base/nullability.hl: 257W:a23i: tnote: Cexpanded from macro 'absl_nullable'o
mm  o257n | (#Mduetfeixn*e  aabbssll__nnounlnlualbll em u_tNeuxl,l
a      b| l                         ^e

      | /usr/local/clang/include/absl/base/nullability.h                      ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2furthest_edge_query.cci:n16e:
 In file included from a../src/s2/s2furthest_edge_query.hb:s25l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
506      :| 1                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       cIn file included from os2/s2edge_crosser.ccn:s18t:
 In file included from T../src/s2/s2edge_crosser.h1:&23 :
vIn file included from 1../src/s2/s2edge_crossings.h,: 40c:
oIn file included from n../src/s2/s1angle.hs:t28 :
TIn file included from 2../src/s2/s2point.h&: 27v:
2In file included from ,../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 1093e:x46p:r twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
t)  {1093  |      v o\i
d       | R                                              ^e
mo/usr/local/clang/include/absl/base/nullability.hv:e241(:b22a:s enote: _expanded from macro 'absl_nonnull'i
nt  e241r | n#adle:f:iPneer Tahbrsela_dnSoynnncuhl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2furthest_edge_query.ccs2/s2edge_crosser.cc::1618:
:
In file included from In file included from ../src/s2/s2furthest_edge_query.h../src/s2/s2edge_crosser.h::2523:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2edge_crossings.h::2140:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s1angle.h::3728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h::2127:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h506::231:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.h::49829::
35In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
498 | /usr/local/clang/include/absl/synchronization/mutex.h : 1109 : 34 :  iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
 v1,  1109i | n t  evx2p,l iccoints tM uctheaxrL*o cakbMsaly_bneo(nMnuutlelx *e xapbrstle_xntu)l l{a b l e   m u ) 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 :\23
:       | note:                                   ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h:241  :25722 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innuel laabbslle_ n_oNnunlullalb l_eN
o      n| n                      ^u
ll
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       tIn file included from hs2/s2edge_tessellator.cci:s18):
)In file included from  ../src/s2/s2edge_tessellator.hA:B24S:
LIn file included from _../src/s2/s1angle.hE:X28C:
LIn file included from U../src/s2/s2point.hS:I27V:
EIn file included from _../src/s2/s2coder.hL:O23C:
KIn file included from _/usr/local/clang/include/absl/status/status.hF:U67N:
CT/usr/local/clang/include/absl/status/internal/status_internal.hI:O119N:(14m:u )warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|       ^~~~
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/synchronization/mutex.h:1153/usr/local/clang/include/absl/base/nullability.h::39241:: 22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
 1153   | 241  |  #edxepfliincei ta bRsell_enaosnanbullelM u_tNeoxnLnouclkl(
M      u| t                     ^e
x* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2edge_tessellator.cc#:d18e:
fIn file included from i../src/s2/s2edge_tessellator.hn:e24 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
l
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 125                     ^:
14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUIn file included from ns2/s2edge_crosser.ccr:e18f:
(In file included from 
../src/s2/s2edge_crosser.h      :| 23             ^:

In file included from ../src/s2/s2edge_crossings.h:/usr/local/clang/include/absl/base/nullability.h40::
241In file included from :../src/s2/s1angle.h22::28 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2point.h
:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n1158u:l53l:
       | warning:                      ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

 1158 |       Mutex& mu ABSL_INTEIn file included from Rs2/s2edge_tessellator.ccN:A18L:
_In file included from A../src/s2/s2edge_tessellator.hT:T24R:
IIn file included from B../src/s2/s1angle.hU:T28E:
_In file included from C../src/s2/s2point.hA:P27T:
UIn file included from R../src/s2/s2coder.hE:D23_:
BIn file included from Y/usr/local/clang/include/absl/status/status.h(:t67h:
i/usr/local/clang/include/absl/status/internal/status_internal.hs:)128,:
14      :|                                                      ^~~~warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAnd/usr/local/clang/include/absl/synchronization/mutex.hU:n1166r:e39f:( )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst ;1166
 |        |               ^e
xp/usr/local/clang/include/absl/base/nullability.hl:i241c:i22t:  Rnote: eexpanded from macro 'absl_nonnull'l
ea  s241a | b#ldeeMfuitneex Laobcskl(_Mnuotnenxu*l la b_sNlo_nnnounlnlu
l      l|                       ^m
u, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2furthest_edge_query.cc::117916::
10In file included from :../src/s2/s2furthest_edge_query.h :25warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
 In file included from 1179/usr/local/clang/include/absl/log/check.h | : 37 :
MIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.ht:e21x:
*/usr/local/clang/include/absl/log/internal/check_op.h :a507b:s1l:_ nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
lab  l507e |  AmBuS_L;_
L      O| G         ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E257R:N23A:L _note: Cexpanded from macro 'absl_nullable'H
EC  K257_ | O#Pd_eIfMiPnLe( Cahbesclk__nGuTl,l a>b)l
e       | _^N
ull/usr/local/clang/include/absl/log/internal/check_op.ha:b488l:e32
:       | note:                       ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const charIn file included from *s2/s2edge_crosser.cc :a18b:
sIn file included from l../src/s2/s2edge_crosser.h_:n23u:
lIn file included from l../src/s2/s2edge_crossings.ha:b40l:
eIn file included from  ../src/s2/s1angle.hn:a28m:
eIn file included from #../src/s2/s2point.h#:I27m:
pIn file included from l../src/s2/s2coder.h(: 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h\:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                               ^:
1212:52/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nullable'
 1212 |   b257o | o#ld eCfoinndei taibosnl:_:nCualsltaAbnldeC a_lNluMleltahbolde(
c      o| n                      ^s
t ConditiIn file included from os2/s2furthest_edge_query.ccn:*16 :
aIn file included from b../src/s2/s2furthest_edge_query.hs:l25_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :c37):
 In file included from {/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                                   ^/usr/local/clang/include/absl/log/internal/check_op.h
:507:/usr/local/clang/include/absl/base/nullability.h1::241 :warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'498
:35  :241  | note: #expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'd
efi  n498e |   a b s l _ nionntn uvl1l,  _iNnotn nvu2l,l 
c      o| n                     ^s
t char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2edge_crosser.cc_:n18o:
nIn file included from n../src/s2/s2edge_crosser.hu:l23l:
 In file included from _../src/s2/s2edge_crossings.hN:o40n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2edge_crossings.cc
:18:
In file included from ../src/s2/s2edge_crossings.h :124140 | :
 In file included from  ../src/s2/s1angle.h : 28b:
oIn file included from o../src/s2/s2point.hl: 24(:
*In file included from a/usr/local/clang/include/absl/hash/hash.hb:s89l:
_In file included from n/usr/local/clang/include/absl/hash/internal/hash.ho:n79n:
uIn file included from l/usr/local/clang/include/absl/base/internal/endian.hl: 26f:
un/usr/local/clang/include/absl/base/internal/unaligned_access.hc:)39(:T45*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_nu   l39l | aibnilliintey _uuinnktn1o6w_nt) ,U
n      a| l           ^i
gne/usr/local/clang/include/absl/base/nullability.hd:L241o:a22d:1 6note: (expanded from macro 'absl_nonnull'c
on  s241t |  #vdoeifdi*n ea basbls_ln_onnonnunlull lp )_ N{o
n      n| u                                            ^l
l
      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2edge_crosser.cc241: | 18#:
dIn file included from e../src/s2/s2edge_crosser.hf:i23n:
eIn file included from  ../src/s2/s2edge_crossings.ha:b40s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289In file included from  | s2/s2edge_crossings.cc#:d18e:
fIn file included from i../src/s2/s2edge_crossings.hn:e40 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l24a:
bIn file included from i/usr/local/clang/include/absl/hash/hash.hl:i89t:
yIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hu:n79k:
nIn file included from o/usr/local/clang/include/absl/base/internal/endian.hw:n26 :
_/usr/local/clang/include/absl/base/internal/unaligned_access.hN:u45l:l45_:u nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
eci   f45i | eidn
l      i| n                                 ^e
 uint32_t UnalignedLoad32(consIn file included from ts2/s2edge_crosser.cc :v18o:
iIn file included from d../src/s2/s2edge_crosser.h*: 23a:
bIn file included from s../src/s2/s2edge_crossings.hl:_40n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_In file included from us2/s2furthest_edge_query.ccn:k16n:
oIn file included from w../src/s2/s2furthest_edge_query.hn: 25_:
NIn file included from u../src/s2/base/logging.hl:l21_:
uIn file included from n/usr/local/clang/include/absl/log/check.hs:p37e:
cIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hf:i21e:
d
/usr/local/clang/include/absl/log/internal/check_op.h      :| 511                                 ^:
13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmpIn file included from ts2/s2edge_crosser.ccr:u18e:
IIn file included from m../src/s2/s2edge_crosser.hp:l23(:

In file included from       ../src/s2/s2edge_crossings.h| :            ^40
:
In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
257In file included from :../src/s2/s2point.h23::27 :
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2coder.h
:23:
  In file included from 257/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l1249e: 8_:N uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ab l1249e | 
        |                        ^ 
T* absIn file included from ls2/s2furthest_edge_query.cc_:n16o:
nIn file included from n../src/s2/s2furthest_edge_query.hu:l25l:
 In file included from o../src/s2/base/logging.hb:j21e:
cIn file included from t/usr/local/clang/include/absl/log/check.h,:
37      :
| In file included from        ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241512::2217::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241 |   #512d | e f i n ec oanbsstl _cnhoanrn*u lalb s_lN_onnunlullalb
l      e|                       ^s
1, const char* abIn file included from ss2/s2edge_crosser.ccl:_18n:
uIn file included from l../src/s2/s2edge_crosser.hl:a23b:
lIn file included from e../src/s2/s2edge_crossings.h :s402:
,In file included from 
../src/s2/s1angle.h      :| 28                ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
257In file included from :../src/s2/s2coder.h23::23 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/status/status.h
:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l1250l:a43b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Null a1250b | l e 
        | b                      ^o
ol (absl::In file included from ts2/s2furthest_edge_query.ccy:p16e:
_In file included from i../src/s2/s2furthest_edge_query.hd:e25n:
tIn file included from i../src/s2/base/logging.ht:y21<:
TIn file included from >/usr/local/clang/include/absl/log/check.h:::37t:
yIn file included from p/usr/local/clang/include/absl/log/internal/check_impl.he::21::
*/usr/local/clang/include/absl/log/internal/check_op.h :a512b:s47l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l512  | m e t h ocdo)n(s)t) 
c      h| a                                          ^r
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #sd1e,f icnoen satb sclh_anro*n naublsll __nNuolnlnaubllle
       s| 2                     ^,

      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513In file included from :s2/s2edge_crosser.cc17::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2edge_crosser.h
:23:
  In file included from 513../src/s2/s2edge_crossings.h | : 40 :
 In file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :c27h:
aIn file included from r../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.he:x94p:
rIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.he:x31t:
)/usr/local/clang/include/absl/synchronization/mutex.h;:
1259      :| 14                ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:  note: 1259expanded from macro 'absl_nonnull' | 
     241  | c#odnesfti nTe*  aabbssll__nnoonnnnuullll  _oNbojnencutl,l

            | |              ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2furthest_edge_query.cca:b16s:
lIn file included from _../src/s2/s2furthest_edge_query.hn:o25n:
nIn file included from u../src/s2/base/logging.hl:l21 :
_In file included from N/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const chaIn file included from rs2/s2edge_crosser.cc*: 18a:
bIn file included from s../src/s2/s2edge_crosser.hl:_23n:
uIn file included from l../src/s2/s2edge_crossings.hl:a40b:
lIn file included from e../src/s2/s1angle.h :C28h:
eIn file included from c../src/s2/s2point.hk:s27t:
rIn file included from c../src/s2/s2coder.hm:p23f:
aIn file included from l/usr/local/clang/include/absl/status/status.hs:e67I:
mIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.hl:(29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h            ^:
94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::25731::
23/usr/local/clang/include/absl/synchronization/mutex.h:: 1260note: :expanded from macro 'absl_nullable'43
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def i1260n | e   a b sblo_onlu l(laabbslle: :_tNyuplel_aibdleen
t      i| t                      ^y
<T>::In file included from ts2/s2furthest_edge_query.ccy:p16e:
:In file included from :../src/s2/s2furthest_edge_query.h*: 25a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hm:e21t:
h/usr/local/clang/include/absl/log/internal/check_op.ho:d515):(17):
       warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                          ^

/usr/local/clang/include/absl/base/nullability.h  :515241 | : 22 :   note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlu_lnloanbnluel ls 1_,N ocnonnusltl 
c      h| a                     ^r
* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullableIn file included from 
s2/s2edge_crosser.cc      :| 18                      ^:

In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from In file included from s2/s2furthest_edge_query.cc../src/s2/s1angle.h::1628:
:
In file included from In file included from ../src/s2/s2furthest_edge_query.h../src/s2/s2point.h::2527:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2coder.h::2123:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/status.h::3767:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/cord.h515::9447:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]31
:
/usr/local/clang/include/absl/synchronization/mutex.h:  1279515: | 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst  1279c | hvaori*d  aRbesgli_sntuelrlMaubtleIn file included from exs2/s2edge_tessellator.cc P:sr18o1f:
i,In file included from l e../src/s2/s2edge_tessellator.hrc:(o24vno:
isdIn file included from  t../src/s2/s1angle.h( :*c28ah:
baIn file included from sr../src/s2/s2point.hl*:_ 27a np:
bo)In file included from sn ../src/s2/s2coder.hln{u:_
l23n      l:
u|                                              ^In file included from lf
/usr/local/clang/include/absl/status/status.hln:/usr/local/clang/include/absl/base/nullability.ha)67:b(:
241li/usr/local/clang/include/absl/status/internal/status_internal.h:en:22 t149:s6: 2note: 4expanded from macro 'absl_nonnull'13,_
t:
          wwarning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| a | i
                                              ^#td
  _/usr/local/clang/include/absl/base/nullability.hce149:yfc | 257ciln:oees23n ):sa) tnote: b; expanded from macro 'absl_nullable'cs
l
h      _a  | n                                  ^r257o
n* | n/usr/local/clang/include/absl/base/nullability.hu #:lad241lbe: sf22_li:N_n onenote: no expanded from macro 'absl_nonnull'nna
unbl  lus241l
l | _      l#n|  du                     ^Mel
aflkiaenbCelh eea cb_ksNFlua_linlloaSnbtnlrueil
nl      g | (_                      ^
N
o      n| n            ^u
In file included from ls2/s2furthest_edge_query.cc/usr/local/clang/include/absl/base/nullability.hl:
:16      241:
| :                     ^In file included from 22
../src/s2/s2furthest_edge_query.h:: 25:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#In file included from 37ds2/s2edge_crossings.cc:
e:In file included from f18/usr/local/clang/include/absl/log/internal/check_impl.hi:
:nIn file included from 21e../src/s2/s2edge_crossings.h:
In file included from  :/usr/local/clang/include/absl/log/internal/check_op.hs2/s2edge_crosser.cca40::b:
51618sIn file included from ::
l../src/s2/s1angle.h17In file included from _::../src/s2/s2edge_crosser.hn28 :o:
warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nIn file included from :

n../src/s2/s2point.hIn file included from u  l:../src/s2/s2edge_crossings.h516l24: |   :
40_ NIn file included from :
 o/usr/local/clang/include/absl/hash/hash.hIn file included from  nc:../src/s2/s1angle.hnou89:nls:
28lt
In file included from :
       /usr/local/clang/include/absl/hash/internal/hash.hIn file included from c| h:../src/s2/s2point.h                     ^a79:
r:
27*In file included from :
 /usr/local/clang/include/absl/base/internal/endian.hIn file included from a:In file included from ../src/s2/s2coder.hb26s2/s2edge_tessellator.cc:s:
:/usr/local/clang/include/absl/base/internal/unaligned_access.h23l18_::
:
n51In file included from In file included from o:/usr/local/clang/include/absl/status/status.h../src/s2/s2edge_tessellator.hn45::n:6724u :
:
lwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from l/usr/local/clang/include/absl/status/internal/status_internal.h 
../src/s2/s1angle.h:e:x29   28p:
51:
rIn file included from  | In file included from t/usr/local/clang/include/absl/strings/cord.hi../src/s2/s2point.he:n:x94l27t:
i:
)In file included from nIn file included from ;/usr/local/clang/include/absl/strings/internal/cordz_info.he../src/s2/s2coder.h
: :      31u23| :
i/usr/local/clang/include/absl/synchronization/mutex.h:
                ^n:tIn file included from 
12936/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h4:33:_67:241t:
 : /usr/local/clang/include/absl/status/internal/status_internal.hwarning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U::
n150 a: note: l251293expanded from macro 'absl_nonnull'i: | 
g nv  warning: eod241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iL | 
do# a  dRd150ee6g | f4i i (scno ten e scratoMb nusvstlote_i xndaTo*brn sanalcub:els:rllS( _tv_naoNotionudnns nu*(ul *llaal bb
pss      )ll|  __                     ^{nn

oo      nn| n                                            ^nu
luIn file included from l/usr/local/clang/include/absl/base/nullability.h ls2/s2furthest_edge_query.ccl:f: 241n16)s::
(t22In file included from ca:../src/s2/s2furthest_edge_query.hot :nunote: 25ssexpanded from macro 'absl_nonnull':
t,
In file included from   ../src/s2/base/logging.h  cc:o241h21n | sa:
#trIn file included from d */usr/local/clang/include/absl/log/check.hec :fha37iab:
nrsIn file included from e*l/usr/local/clang/include/absl/log/internal/check_impl.h  _a:anbb21sols:
n_l/usr/local/clang/include/absl/log/internal/check_op.hnn_:uon517lno:lnn13 un:mlu sllwarning: g ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],p 

r_e        Nf| 517oi                                ^ | nx
cno)/usr/local/clang/include/absl/base/nullability.hun;:
ls241      lt:| 
 22                        ^      c:
| h                      ^/usr/local/clang/include/absl/base/nullability.ha
note: :expanded from macro 'absl_nonnull'r241*
: 22  a:b241 snote:  | lexpanded from macro 'absl_nonnull'#_
dn  ue241lf | l#iadnbeelfei  nCeah ebacbskssll_tn_ronconaIn file included from nnss2/s2edge_crossings.ccnue:ulc18llm:
l pIn file included from  _t../src/s2/s2edge_crossings.h_Nr:Nou40one:
nnIIn file included from num../src/s2/s1angle.hulp:lll28l
(:

      
In file included from       |       ../src/s2/s2point.h|                      ^| :                     ^
            ^24

:
In file included from In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2edge_crosser.cc/usr/local/clang/include/absl/hash/hash.h:::25718In file included from 89::
s2/s2edge_tessellator.cc:
23In file included from :In file included from :../src/s2/s2edge_crosser.h18/usr/local/clang/include/absl/hash/internal/hash.h ::
:note: 23In file included from 79expanded from macro 'absl_nullable':
../src/s2/s2edge_tessellator.h:

In file included from   :In file included from ../src/s2/s2edge_crossings.h25724/usr/local/clang/include/absl/base/internal/endian.h: | :
:40#In file included from d26:
../src/s2/s1angle.he:
In file included from :f/usr/local/clang/include/absl/base/internal/unaligned_access.h../src/s2/s1angle.h28i:::
n5728In file included from e::
../src/s2/s2point.h 36aIn file included from ::b../src/s2/s2point.h27 s::
warning: l27In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_:
../src/s2/s2coder.h
nIn file included from :u../src/s2/s2coder.h23   l::
57l23In file included from  | a:
/usr/local/clang/include/absl/status/status.hibIn file included from :nl/usr/local/clang/include/absl/status/status.h67le::
i 67/usr/local/clang/include/absl/status/internal/status_internal.hn_:
:eNIn file included from 150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const  u/usr/local/clang/include/absl/status/internal/status_internal.halb:lsa29lb:
:lIn file included from :e/usr/local/clang/include/absl/strings/cord.hS
:t      94a| :
t                      ^In file included from u
/usr/local/clang/include/absl/strings/internal/cordz_info.hs:*31In file included from  :
s2/s2furthest_edge_query.cc/usr/local/clang/include/absl/synchronization/mutex.ha::b161293s:
l:In file included from _62../src/s2/s2furthest_edge_query.hn::o 25n:
nwarning: In file included from utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.hl
:l21 :
s In file included from t1293/usr/local/clang/include/absl/log/check.ha | :tv37uo:
siIn file included from d, /usr/local/clang/include/absl/log/internal/check_impl.h R:ce21og:
n/usr/local/clang/include/absl/log/internal/check_op.his:ts518 t:ce17hr:Ma urwarning: t*type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e x
Tarb  sa518lc | _e nr o( nv onciuodl nl(s *tpa rbcehsflai_rxn*o) ;na
nbu      ls| ll                                                         ^ _
fn/usr/local/clang/include/absl/base/nullability.hunl:l)241(ac:bo22ln:es tnote:  expanded from macro 'absl_nonnull' s
1c,h  a 241rc* | o# ndsaebtf silc_nnhoena nrual*lb  samlsbg_s,n
lo_      nnn| uu                                                             ^lll
la b_l/usr/local/clang/include/absl/base/nullability.hNeo: ns241n2u:,l
22l      :
|                        ^note: | expanded from macro 'absl_nonnull'
                     ^

/usr/local/clang/include/absl/base/nullability.h:  257241: | 23#:d enote: fexpanded from macro 'absl_nullable'i
ne   257a | b#sdle_fnionnen ualbls l__Nnounlnlualbll
e       | _                     ^N
ullable
      In file included from | s2/s2edge_crosser.cc                      ^:
18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.hIn file included from :s2/s2furthest_edge_query.cc40::
16In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2furthest_edge_query.h28::
25In file included from :
../src/s2/s2point.hIn file included from :../src/s2/base/logging.h27::
21In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/log/check.h23::
37In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h67::
21In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_op.h::29518:
:In file included from 47/usr/local/clang/include/absl/strings/cord.h:: 94warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h518: | 1294 : 62 :  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st  c1294h | a r *   a b s l _ n u l l a b l e   s 1 ,   c o n s t   c h a r *   a b s l _ n u l l a b l e   s 2c,o
n      s| t                                              ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d257*: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle foibnje, 
a      b| s                                                             ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull'_
Nu  l241l | a#bdleef
i      n| e                      ^ 
absl_nIn file included from os2/s2furthest_edge_query.ccn:n16u:
lIn file included from l../src/s2/s2furthest_edge_query.h :_25N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const chIn file included from as2/s2edge_crosser.ccr:*18 :
aIn file included from b../src/s2/s2edge_crosser.hs:l23_:
nIn file included from o../src/s2/s2edge_crossings.hn:n40u:
lIn file included from l../src/s2/s1angle.h :e28x:
pIn file included from r../src/s2/s2point.ht:e27x:
tIn file included from )../src/s2/s2coder.h;:
23      :
| In file included from                 ^/usr/local/clang/include/absl/status/status.h
:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i1309n:e35 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no n1309n | uvloli d_ NRoengniusltle
r      C| o                     ^n
dVarTracer(vIn file included from os2/s2furthest_edge_query.cci:d16 :
(In file included from *../src/s2/s2furthest_edge_query.ha:b25s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
fIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.h):(21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                                  ^520
:13:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'520
 | c  o241n | s#td ecfhianre*  aabbssll__nnounlnlualbll e_ NCohnencuklslt
r      c| a                     ^s
ecmpfIn file included from as2/s2edge_crosser.ccl:s18e:
IIn file included from m../src/s2/s2edge_crosser.hp:l23(:

In file included from       ../src/s2/s2edge_crossings.h| :            ^40
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::25728::
23In file included from :../src/s2/s2point.h :note: 27expanded from macro 'absl_nullable':

In file included from ../src/s2/s2coder.h  :25723 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31l:
e/usr/local/clang/include/absl/synchronization/mutex.h :_1310N:u17l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e
       | 1310                      ^ | 
    In file included from cs2/s2furthest_edge_query.cco:n16s:
tIn file included from  ../src/s2/s2furthest_edge_query.hc:h25a:
rIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 /usr/local/clang/include/absl/log/internal/check_op.hm:s521g:,17 :c owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
t v  o521i | d *   a bcsoln_snto ncnhualrl*  cavb)s)l;_
n      u| l                ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241 :s221:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlu_lnloanbnluel ls 2_,N
o      n| n                ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      257| :                     ^23
: note: expanded from macro 'absl_nullable'
  257 | In file included from #s2/s2edge_crosser.ccd:e18f:
iIn file included from n../src/s2/s2edge_crosser.he: 23a:
bIn file included from s../src/s2/s2edge_crossings.hl:_40n:
uIn file included from l../src/s2/s1angle.hl:a28b:
lIn file included from e../src/s2/s2point.h :_27N:
uIn file included from l../src/s2/s2coder.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/status/status.h
:      67| :
                      ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94In file included from :
s2/s2furthest_edge_query.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h16::
31In file included from :
../src/s2/s2furthest_edge_query.h/usr/local/clang/include/absl/synchronization/mutex.h::251310:
:In file included from 47../src/s2/base/logging.h:: 21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
 In file included from 1310/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :c521o:n47s:t  warning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]h
ar*   521a | b s l _ ncoonnnsutl lc hmasrg*,  acbosnls_tn uvloliadb*l ea bss1l,_ ncoonnnsutl lc hcavr)*) ;a
b      s| l                                              ^_
n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull's
2,  
241       | | #                                              ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n257e: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle f_iNnoen naublsll
_      n| u                     ^l
lable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.hv:o21i:
dIn file included from  /usr/local/clang/include/absl/log/check.hU:n37a:
lIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hg:n21e:
d/usr/local/clang/include/absl/log/internal/check_op.hS:t522o:r17e:1 6warning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
oi  d522* |   a b s lc_onnosntn uclhla rp*,  aubisnlt_1n6o_ntn uvl)l  {e
x      p| r                                   ^t
ext)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22                ^:
 /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_In file included from unls2/s2edge_tessellator.ccol: n18_nN:
uoIn file included from nl../src/s2/s2edge_tessellator.hnlu: l24_l:
N
In file included from o      ../src/s2/s1angle.hn| :n                     ^28u
:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^In file included from 
s2/s2edge_crossings.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2edge_crossings.h::2240::
 In file included from note: ../src/s2/s1angle.hexpanded from macro 'absl_nonnull':
28:
  In file included from 241../src/s2/s2point.h | :#24d:
eIn file included from f/usr/local/clang/include/absl/hash/hash.hi:n89e:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
_In file included from n/usr/local/clang/include/absl/base/internal/endian.ho:n26n:
u/usr/local/clang/include/absl/base/internal/unaligned_access.hl:l61 :_36N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
      |                         ^61
 | inline void UnalignedStore32(void* absl_In file included from ns2/s2edge_tessellator.cco:n18n:
uIn file included from l../src/s2/s2edge_tessellator.hl: 24p:
,In file included from  ../src/s2/s1angle.hu:i28n:
tIn file included from 3../src/s2/s2point.h2:_27t:
 In file included from v../src/s2/s2coder.h): 23{:

/usr/local/clang/include/absl/status/status.h      :| 732                                   ^:
29: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 732expanded from macro 'absl_nonnull' | 
    s241t | a#tdiecf icnoen satb sslt_dn:o:nsnturliln g_*N oanbnsull_ln
o      n| n                     ^u
ll EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2edge_crossings.cc
:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.hs2/s2edge_tessellator.cc::8918:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h../src/s2/s2edge_tessellator.h::7924:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/s1angle.h::2628:
:
/usr/local/clang/include/absl/base/internal/unaligned_access.hIn file included from :../src/s2/s2point.h65::2736:
:In file included from  ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
/usr/local/clang/include/absl/status/status.h:733:29:    warning: 65type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
inl  i733n | e   vsotiadt iUcn acloingsnte dsSttdo:r:es6t4r(ivnogi*d *a basbls_ln_onnonnunlull lM opv,e duFirnotm6S4t_rti nvg)( ){;

            | |                                    ^                            ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | iIn file included from ns2/s2edge_crosser.ccl:i18n:
eIn file included from  ../src/s2/s2edge_crosser.hv:o23i:
dIn file included from  ../src/s2/s2edge_crossings.hS:t40o:
rIn file included from e../src/s2/s1angle.h1:628(:
vIn file included from o../src/s2/s2point.hi:d27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29p:
,/usr/local/clang/include/absl/strings/cord.h :u425i:n62t:1 6warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 v)   425{ | 
        | f                          ^r
ien/usr/local/clang/include/absl/base/nullability.hd: 241v:o22i:d  note: Cexpanded from macro 'absl_nonnull'o
py  C241o | r#ddTeofSitnrei nagb(sclo_nnsotn nCuolrld &_ Nsorncn,u lslt
d      :| :                     ^s
tring* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2edge_crossings.ccl: 18_:
NIn file included from o../src/s2/s2edge_crossings.hn:n40u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uinIn file included from ts2/s2edge_crosser.cc3:218_:
tIn file included from  ../src/s2/s2edge_crosser.hL:o23a:
dIn file included from 3../src/s2/s2edge_crossings.h2:(40c:
oIn file included from n../src/s2/s1angle.hs:t28 :
vIn file included from o../src/s2/s2point.hi:d27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29p:
)/usr/local/clang/include/absl/strings/cord.h :{437
:      47| :                                   ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:   437note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u lslt
d      :| :                     ^s
tring* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2edge_crossings.ccn:o18n:
nIn file included from u../src/s2/s2edge_crossings.hl:l40 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
24      :
| In file included from                      ^/usr/local/clang/include/absl/hash/hash.h
:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h::
29:
/usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/strings/cord.h::172641::2733::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  641 |    172  |  i nulsiinneg  vpooiidn tSetro r=e 3c2o(nvsoti dc*h aarb*s la_bnsoln_nnuolnln upl,l ;u
i      n| t                                ^3
2_/usr/local/clang/include/absl/base/nullability.ht: 241v:)22 :{ 
note:       expanded from macro 'absl_nonnull'| 
                          ^
  241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2edge_crossings.cc27::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2edge_crossings.h23::
40In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s1angle.h67::
28In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
24:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/hash/hash.h655::8939:
:In file included from  /usr/local/clang/include/absl/hash/internal/hash.h:warning: 79type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/base/internal/endian.h:176:  36655: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 exp  l176i | ciintl iCnhea ruIitnetr6a4t_otr (Lcooands6t4 (Ccoornds*t  avbosild_*n oanbnsull_ln ocnonrudl)l
       p| )                                      ^ 
{
/usr/local/clang/include/absl/base/nullability.h      :| 241                                   ^:
22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2edge_crossings.cc27::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2edge_crossings.h23::
40In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s1angle.h67::
28In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
24:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/hash/hash.h667::8944:
:In file included from  /usr/local/clang/include/absl/hash/internal/hash.h:warning: 79type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/base/internal/endian.h:180:27  :667  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
stat  i180c |  iCnolridn eA dvvoaindc eSAtnodrRee6a4d((vCohiadr*I taebrsalt_onro*n naublsll _pn,o nuniunltl6 4i_tt,  vs)i z{e
_      t|                            ^n
_b/usr/local/clang/include/absl/base/nullability.hy:t241e:s22):; 
      note: | expanded from macro 'absl_nonnull'                                           ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull coIn file included from rs2/s2edge_tessellator.ccd:,18
:
      In file included from | ../src/s2/s2edge_tessellator.h                                          ^:
24:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:  23241:
 | #/usr/local/clang/include/absl/status/status.hd:e1031f:i42n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_non n1031u | liln l_iNnoen ncuolnls
t       | s                     ^t
atus_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::SIn file included from ts2/s2edge_crosser.cca:t18u:
sIn file included from R../src/s2/s2edge_crosser.he:p23*:
 In file included from a../src/s2/s2edge_crossings.hb:s40l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27r:
eIn file included from p../src/s2/s2coder.h): 23{:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:22/usr/local/clang/include/absl/strings/cord.h:: 898note: :expanded from macro 'absl_nonnull'27
:   warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#def  i898n | e   afbrsile_nndo ncnounlslt  _CNoorndnzuIlnlf
o      *|                       ^a
bsl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char*In file included from  s2/s2edge_crossings.cca:b18s:
lIn file included from _../src/s2/s2edge_crossings.hn:u40l:
lIn file included from a../src/s2/s1angle.hb:l28e:
 In file included from d../src/s2/s2point.ha:t24a:
,In file included from  /usr/local/clang/include/absl/hash/hash.hs:i89z:
eIn file included from _/usr/local/clang/include/absl/hash/internal/hash.ht: 79n:
);/usr/local/clang/include/absl/base/internal/endian.h
:      250| :                              ^36
: /usr/local/clang/include/absl/base/nullability.hwarning: :257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23: note: expanded from macro 'absl_nullable'  
250 |   i257n | l#idneef iunien ta1b6s_lt_ nLuolalda1b6l(ec o_nNsutl lvaobilde*
       a| b                      ^s
l_nonnull p) {
      |                                    ^In file included from 
s2/s2edge_crosser.cc:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2edge_crosser.h::24123::
22In file included from :../src/s2/s2edge_crossings.h :40note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l935 :_11N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 935                     ^ | 
    char* absl_nonnull set_data(size_t n);  // Write data to tIn file included from hs2/s2edge_crossings.cce: 18r:
eIn file included from s../src/s2/s2edge_crossings.hu:l40t:

In file included from       ../src/s2/s1angle.h| :          ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::24241:
:In file included from 22/usr/local/clang/include/absl/hash/hash.h:: 89:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/hash/internal/hash.h
:79:
  241/usr/local/clang/include/absl/base/internal/endian.h | :#254d:e27f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l254_ | nionnlniunlel  v_oNiodn nSutlolr
e      1| 6                     ^(
void* absl_nonnull p, uinIn file included from ts2/s2edge_crosser.cc1:618_:
tIn file included from  ../src/s2/s2edge_crosser.hv:)23 :
{In file included from 
../src/s2/s2edge_crossings.h      :| 40                          ^:

In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :a937b:s35l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l937  | _ N o n naublsll
:      :| c                     ^o
rd_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2edge_crossings.ccnote: :expanded from macro 'absl_nullable'18
:
In file included from ../src/s2/s2edge_crossings.h  :25740 | :
#In file included from d../src/s2/s1angle.he:f28i:
nIn file included from e../src/s2/s2point.h :a24b:
sIn file included from l/usr/local/clang/include/absl/hash/hash.h_:n89u:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.ha:b79l:
e/usr/local/clang/include/absl/base/internal/endian.h :_258N:u36l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e
      |                         ^258
 | inline uint32_t LoIn file included from as2/s2edge_crosser.ccd:3182:
(In file included from c../src/s2/s2edge_crosser.ho:n23s:
tIn file included from  ../src/s2/s2edge_crossings.hv:o40i:
dIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from p/usr/local/clang/include/absl/status/status.h): 67{:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                                   ^29
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::938241::3522::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 938# | d e f i naeb salb:s:lc_onrodn_niunltle r_nNaoln:n:uClolr
d      R| e                     ^p
* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2edge_crossings.cce: 18a:
bIn file included from s../src/s2/s2edge_crossings.hl:_40n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N24o:
nIn file included from n/usr/local/clang/include/absl/hash/hash.hu:l89l:

In file included from       /usr/local/clang/include/absl/hash/internal/hash.h| :                     ^79
:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inIn file included from ls2/s2edge_crosser.cci:n18e:
 In file included from v../src/s2/s2edge_crosser.ho:i23d:
 In file included from S../src/s2/s2edge_crossings.ht:o40r:
eIn file included from 3../src/s2/s1angle.h2:(28v:
oIn file included from i../src/s2/s2point.hd:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :p29,:
 /usr/local/clang/include/absl/strings/cord.hu:i939n:t173:2 _warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
v)   {939
 |        |                            ^ 
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sals__nocnhnaurlsl( )_ Ncoonnnsutl;l

            | |                 ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:In file included from 40s2/s2edge_crosser.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2edge_crosser.h:
:In file included from 23../src/s2/s2point.h:
:In file included from 24../src/s2/s2edge_crossings.h:
:In file included from 40/usr/local/clang/include/absl/hash/hash.h:
:In file included from 89../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/hash/internal/hash.h:
:In file included from 79../src/s2/s2point.h:
:27/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 266../src/s2/s2coder.h::3623::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
266 | /usr/local/clang/include/absl/strings/cord.hi:n941l:i35n:e  warning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nt6  4941_ | t   L o aadb6s4l(:c:ocnosrtd _vionitde*r naabls:l:_CnoorndnRuelpl*  pa)b s{l
_      n| u                                   ^l
la/usr/local/clang/include/absl/base/nullability.hb:l241e: 22c:l enote: aexpanded from macro 'absl_nonnull'r
()  ;241
 |       #| d                                  ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld e_fNionnen ualbls
l      _| n                     ^u
llable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27In file included from :s2/s2edge_crosser.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2edge_crosser.h:23:
In file included from   ../src/s2/s2edge_crossings.h270: | 40i:
nIn file included from l../src/s2/s1angle.hi:n28e:
 In file included from v../src/s2/s2point.ho:i27d:
 In file included from S../src/s2/s2coder.ht:o23r:
eIn file included from 6/usr/local/clang/include/absl/status/status.h4:(67v:
oIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hd:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s950l:_18n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll p  ,950  | u i n t 6C4o_tr v)d R{e
p      F| l                          ^a
t* ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l M  a241k | e#FdleaftiWniet haEbxstlr_anCoanpnauclilt y_(Nsoinzneu_ltl 
e      x| t                     ^r
a);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:25:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_tessellator.cc:18:
In file included from ../src/s2/s2edge_tessellator.h:25:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull constIn file included from  s2/s2edge_crosser.ccf:i18l:
eIn file included from _../src/s2/s2edge_crosser.h;:
23      :
| In file included from               ^../src/s2/s2edge_crossings.h
:40:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h241::2822:
:In file included from  ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l_/usr/local/clang/include/absl/strings/cord.hn:o1222n:n52u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nonnul l1222
 |       i| n                     ^l
ine void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absIn file included from ls2/s2latlng_rect.cc:::18c:
oIn file included from r../src/s2/s2latlng_rect.hd:_26i:
nIn file included from t../src/s2/base/logging.he:r21n:
aIn file included from l/usr/local/clang/include/absl/log/check.h:::37C:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hd:R21e:
pIn file included from */usr/local/clang/include/absl/log/internal/check_op.h :a41b:
sIn file included from l/usr/local/clang/include/absl/log/internal/strip.h_:n26o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hu:l47l:
 In file included from C/usr/local/clang/include/absl/log/internal/structured_proto.ho:r27d:
:In file included from :/usr/local/clang/include/absl/log/internal/proto.hI:n34l:
in/usr/local/clang/include/absl/types/span.he:R733e:p31::: awarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
tree(  )733
 |       c| o                                     ^n
st/usr/local/clang/include/absl/base/nullability.he:x241p:r22 :S pnote: aexpanded from macro 'absl_nonnull'n
<T  >241  | M#adkeefSipnaen (aTb*s la_bnsoln_nnuullll a_bNloen nputlrl 
A      B| S                     ^L
_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2edge_crosser.ccn:u18l:
lIn file included from a../src/s2/s2edge_crosser.hb:l23e:
 In file included from _../src/s2/s2edge_crossings.hN:u40l:
lIn file included from a../src/s2/s1angle.hb:l28e:

In file included from       ../src/s2/s2point.h| :                      ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordIn file included from Rs2/s2latlng_rect.cce:p18*:
 In file included from a../src/s2/s2latlng_rect.hb:s26l:
_In file included from n../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37 :
CIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:d21::
:In file included from I/usr/local/clang/include/absl/log/internal/check_op.hn:l41i:
nIn file included from e/usr/local/clang/include/absl/log/internal/strip.hR:e26p:
:In file included from :/usr/local/clang/include/absl/log/internal/log_message.ht:r47e:
eIn file included from (/usr/local/clang/include/absl/log/internal/structured_proto.h):
27      :
| In file included from                                      ^/usr/local/clang/include/absl/log/internal/proto.h
:34:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/types/span.h::257739::2321::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  257 | #  d739e | fSipnaen <aTb>s lM_ankuelSlpaabnl(eT *_ Naublslla_bnluel
l      a| b                      ^l
e begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:In file included from 18s2/s2edge_crosser.cc:
:In file included from 18../src/s2/s2latlng_rect.h:
:In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2furthest_edge_query.ccs2/s2edge_crosser.cc::16:
In file included from ../src/s2/s2furthest_edge_query.h18::
25In file included from :
../src/s2/s2edge_crosser.hIn file included from :../src/s2/base/logging.h23::
22In file included from :
../src/s2/s2edge_crossings.hIn file included from :/usr/local/clang/include/absl/log/log.h40::
209In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h28::
20In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h27::
63In file included from :
../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/vlog_config.h::23157:
:In file included from 11/usr/local/clang/include/absl/status/status.h:: 67warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
  /usr/local/clang/include/absl/strings/cord.h157: | 1268V:L51o:g Siwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
* ab s1268l | _innullilnaeb lveo iSde tCVoMrodd:u:lIenLliisnteHReeapd:F:oErmTpelsatcOenTlrye(e
(      C| o          ^r
dR/usr/local/clang/include/absl/base/nullability.he:p257*: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle frienpe, 
a      b| s                                                  ^l
_nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e  note: _expanded from macro 'absl_nonnull'N
ul  l241a | b#ldee
f      i| n                      ^e
 absl_nIn file included from os2/s2furthest_edge_query.ccn:n16u:
lIn file included from ../src/s2/s2furthest_edge_query.hl: 25:
_In file included from N../src/s2/base/logging.ho:22n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                     ^:
20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable In file included from _s2/s2edge_crosser.ccN:u18l:
lIn file included from a../src/s2/s2edge_crosser.hb:l23e:

In file included from       ../src/s2/s2edge_crossings.h| :                      ^40
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |  In file included from  s2/s2edge_tessellator.cc : 26c:
oIn file included from r../src/s2/s2edge_distances.hd:_31i:
nIn file included from t../src/s2/s2edge_crossings.he:r47n:
aIn file included from l../src/s2/s2predicates.h:::55C:
oIn file included from r/usr/local/clang/include/absl/flags/flag.hd:R42e:
pIn file included from */usr/local/clang/include/absl/flags/internal/flag.h :a30b:
sl/usr/local/clang/include/absl/base/call_once.h_:n52o:n24n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
tree)    52{ | 
s      t| d                            ^:
:at/usr/local/clang/include/absl/base/nullability.ho:m241i:c22<:u inote: nexpanded from macro 'absl_nonnull't
32  _241t | >#*d eafbisnle_ naobnsnlu_lnlo nCnounltlr o_lNWoonrndu(l
l      
|                              ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flaIn file included from gs2/s2edge_crosser.cc*: 18a:
bIn file included from s../src/s2/s2edge_crosser.hl:_23n:
oIn file included from n../src/s2/s2edge_crossings.hn:u40l:
lIn file included from  ../src/s2/s1angle.hf:l28a:
gIn file included from )../src/s2/s2point.h;:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
  /usr/local/clang/include/absl/strings/cord.h241: | 1530#:d55e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs l1530_ | nionnlniunlel  C_oNrodn:n:uClhlu
n      k| I                     ^t
erator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2edge_tessellator.cc
:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2edge_crosser.cc::2218::
 In file included from note: ../src/s2/s2edge_crosser.hexpanded from macro 'absl_nonnull':
23:
  In file included from 241../src/s2/s2edge_crossings.h | :#40d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
ll/usr/local/clang/include/absl/strings/cord.h
:      1666| :                     ^48
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_tessellator.cc:26:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:41:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:41:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:27:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crosser.cc:18:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
299 warnings generated.
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2lax_polyline_shape.cc -o s2/s2lax_polyline_shape.o
_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18In file included from :
s2/s2lax_loop_shape.ccIn file included from :../src/s2/s2latlng_rect.h18::
26In file included from :
../src/s2/s2lax_loop_shape.hIn file included from :../src/s2/base/logging.h41::
21In file included from :
../src/s2/s2loop.hIn file included from :/usr/local/clang/include/absl/log/check.h32::
37In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h21::
21In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h37::
41In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h21::
26In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/internal/log_message.h41::
53In file included from :
/usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/types/source_location.h::26133:
:25/usr/local/clang/include/absl/log/internal/log_message.h:: 306warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]3
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
133 |     c306o | n s taebxsplr_ ncoonnnsutl lc hsatrd*: :aubnsilq_uneo_npnturl<lL ofgiMlees_snaagmeeD(a)t ac>o ndsatt an_o;e
x      c| e  ^p
t /usr/local/clang/include/absl/base/nullability.h{:
241      :| 22                        ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSink380O warningnsl generatedy.
(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2lax_loop_shape.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2lax_loop_shape.h21::
41In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2loop.h41::
32In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :../src/s2/base/logging.h26::
21:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :/usr/local/clang/include/absl/log/check.h179::3735:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
  In file included from 179/usr/local/clang/include/absl/log/internal/strip.h | : 26 :
Lo/usr/local/clang/include/absl/log/internal/log_message.hg:M319e:s20s:a gwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]&
 ope  r319a | t o r < <c(owncshta rw_cth*a ra_bts*l _anbuslll_anbullel avb)l;e
       c| o                                  ^n
st/usr/local/clang/include/absl/base/nullability.h&: 257v:)23;:
       | note:                    ^expanded from macro 'absl_nullable'

  257/usr/local/clang/include/absl/base/nullability.h | :#257d:e23f:i nnote: eexpanded from macro 'absl_nullable' 
ab  s257l | _#nduelflianbel ea b_sNlu_lnlualbllaeb
l      e|                        ^_
Nullable
      |                       ^
In file included from s2/s2latlng_rect.ccIn file included from :s2/s2lax_loop_shape.cc18::
18In file included from :
../src/s2/s2latlng_rect.hIn file included from :../src/s2/s2lax_loop_shape.h26::
41In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2loop.h21::
32In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h41::
21In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h26::
41/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 190/usr/local/clang/include/absl/log/internal/strip.h::4226::
 /usr/local/clang/include/absl/log/internal/log_message.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]321
:52: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]190
 |   L  o321g | Mienslsiangee &L oogpMeersastaogre<&< (LsotgdM:e:sossatgree:a:mo&p e(r*aatbosrl<_<n(owncnhualrl_ tm*) (asbtsdl:_:nousltlraebalme&  vo)s ){)
;      
|                                                          ^| 
                                         ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257241::2322::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

  257   | 241# | d#edfeifnien ea basbls_ln_unlolnanbullel  __NNuolnlnaubllle

            | |                      ^                      ^

In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2lax_loop_shape.cci:n18e:
 In file included from a../src/s2/s2lax_loop_shape.hb:s41l:
_In file included from n../src/s2/s2loop.ho:n32n:
uIn file included from l../src/s2/base/logging.hl: 21_:
NIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull sta/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2loop_measures.cc -o s2/s2loop_measures.o
tus, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2latlng_rect.ccl:_18n:
oIn file included from n../src/s2/s2latlng_rect.hn:u26l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from nu/usr/local/clang/include/absl/log/check.hl:l37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: In file included from warning: s2/s2lax_loop_shape.cc:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from   ../src/s2/s2loop.h319: | 32 :
 In file included from  ../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37w:
cIn file included from h/usr/local/clang/include/absl/log/internal/check_impl.ha:r21_:
t/usr/local/clang/include/absl/log/internal/check_op.h*: 293a:b49s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b293l | e   c o n s t &   v ) ; 
        |                     ^ 
    /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d ecfoinnset  acbhsalr_*n ualblsalb_lneo n_nNuullll)a;b
l      e| 
                                                ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:In file included from 21s2/s2lax_loop_shape.cc:
:In file included from 18/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2lax_loop_shape.h:
:In file included from 41/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2loop.h:
:In file included from 32/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26/usr/local/clang/include/absl/log/check.h:
:37/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 321/usr/local/clang/include/absl/log/internal/check_impl.h::5221::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]295
:20:   warning: 321type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
inli  n295e |  cLoongsMte sssiaggnee&d  LcohgaMre*s saabgsel:_:noopnenrualtlo ro<p<e(rwacthoarr<_<t(*s tadb:s:lb_ansuilcl_aobslter eva)m <{c
h      a| r                                                   ^,
 T/usr/local/clang/include/absl/base/nullability.hr:a257i:t23s:> &note: ,expanded from macro 'absl_nullable'

      |                      ^257
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2lax_loop_shape.cc::4118:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h../src/s2/s2lax_loop_shape.h::2641:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2loop.h::34032::
46In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 340/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
f/usr/local/clang/include/absl/log/internal/check_op.hr:i298e:n22d:  vwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
d Ab  s298l | Fcoornmsatt Fulnussihg(nSetdr icnhgairf*y Saibnskl*_ naobnsnlu_lnlo nonpuelrla tsoirn<k<,(
s      t| d                                             ^:
:ba/usr/local/clang/include/absl/base/nullability.hs:i241c:_22o:s tnote: rexpanded from macro 'absl_nonnull'e
am  <241c | h#adre,f iTnrea iatbss>l&_,n
o      n| n                     ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnIn file included from us2/s2latlng_rect.ccl:l18 :
MIn file included from a../src/s2/s2latlng_rect.hk:e26C:
hIn file included from e../src/s2/base/logging.hc:k21O:
pIn file included from S/usr/local/clang/include/absl/log/check.ht:r37i:
nIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.h(:
21      :
| In file included from                                            ^/usr/local/clang/include/absl/log/internal/check_op.h
:41:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h241::2622:
: /usr/local/clang/include/absl/log/internal/log_message.hnote: :expanded from macro 'absl_nonnull'425
:31  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e425  | a b sLlo_gnMoensnsualgle F_aNtoanln(ucloln
s      t|                       ^c
har* absl_nIn file included from os2/s2lax_loop_shape.ccn:n18u:
lIn file included from l../src/s2/s2lax_loop_shape.h :f41i:
lIn file included from e../src/s2/s2loop.h,: 32i:
nIn file included from t../src/s2/base/logging.h :l21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h): 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hL:_21A:
T/usr/local/clang/include/absl/log/internal/check_op.hT:R429I:B31U:T Ewarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
OLD  ;429
 |        |                                ^ 
 T1/usr/local/clang/include/absl/base/nullability.h :v2411:,22 :T 2note:  expanded from macro 'absl_nonnull'v
2,   241c | o#ndsetf icnhea ra*b salb_snlo_nnnounlnlu l_lN oenxnpurltle
x      t| )                     ^ 
ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2latlng_rect.cc241: | 18#:
dIn file included from e../src/s2/s2latlng_rect.hf:i26n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_op.ho:n41n:
uIn file included from l/usr/local/clang/include/absl/log/internal/strip.hl:
26      :
| /usr/local/clang/include/absl/log/internal/log_message.h                     ^:
426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(constIn file included from  s2/s2lax_loop_shape.ccc:h18a:
rIn file included from *../src/s2/s2lax_loop_shape.h :a41b:
sIn file included from l../src/s2/s2loop.h_:n32o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from f/usr/local/clang/include/absl/log/check.hi:l37e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hi:n21t:
 /usr/local/clang/include/absl/log/internal/check_op.hl:i432n:e13,:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                              ^

/usr/local/clang/include/absl/base/nullability.h  :432241 | :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en oanbnsull_ln oMnankuelClh e_cNkoOnpnSutlrli
n      g| (                     ^T
1 v1, T2 v2,
      In file included from | s2/s2latlng_rect.cc            ^:
18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2latlng_rect.h241::2622:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b41s:
lIn file included from _/usr/local/clang/include/absl/log/internal/strip.hn:o26n:
n/usr/local/clang/include/absl/log/internal/log_message.hu:l427l: 31_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  
427       | |                       ^ 
         In file included from  s2/s2lax_loop_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_loop_shape.h :c41o:
nIn file included from s../src/s2/s2loop.ht: 32c:
hIn file included from a../src/s2/base/logging.hr:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 433f:a56i:l uwarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
_ms  g433) |   A B S L _ A T T R I B U T E _ C O L D ; 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d ecfoinnset  acbhsalr_*n oanbnsull_ln o_nNnounlnlu lelx
p      r| t                     ^e
xt) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHIn file included from Es2/s2latlng_rect.ccC:K18_:
OIn file included from P../src/s2/s2latlng_rect.h_:S26T:
RIn file included from I../src/s2/base/logging.hN:G21_:
EIn file included from X/usr/local/clang/include/absl/log/check.hT:E37R:
NIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hb:o21o:
lIn file included from )/usr/local/clang/include/absl/log/internal/check_op.h;:
41      :
| In file included from ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/log_message.h::449446::3143::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  449   | 446  |   e xLtoegrMne stseamgpelQautiee tcloynDsetb ucghFaart*a la(bcsoln_snto ncnhualrl*  MaabkselC_hneocnknOuplSlt rfiinlge(, 
        | \                                          ^

      | /usr/local/clang/include/absl/base/nullability.h                              ^:
241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, cIn file included from os2/s2latlng_rect.ccn:s18t:
 In file included from c../src/s2/s2latlng_rect.hh:a26r:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21):

In file included from       /usr/local/clang/include/absl/log/internal/check_op.h| :                        ^41
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/strip.h::24126::
22/usr/local/clang/include/absl/log/internal/log_message.h:: 454note: :expanded from macro 'absl_nonnull'38
:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def  i454n | e   aLbosglM_ensosnanguelQlu i_eNtolnynFualtla
l      (| c                     ^o
nst char* absl_nonnull file,
      |                                      ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2lax_loop_shape.cc::24118::
22In file included from :../src/s2/s2lax_loop_shape.h :note: 41expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2loop.h  :24132 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u452l:l1 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l452
 |       A| B                     ^S
L_LOG_INTERNAL_DEFINE_MAKE_CHIn file included from Es2/s2latlng_rect.ccC:K18_:
OIn file included from P../src/s2/s2latlng_rect.h_:S26T:
RIn file included from I../src/s2/base/logging.hN:G21_:
EIn file included from X/usr/local/clang/include/absl/log/check.hT:E37R:
NIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hi:n21t:
6In file included from 4/usr/local/clang/include/absl/log/internal/check_op.h_:t41):
;In file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26^:

/usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/log/internal/check_op.h456::44938::31 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

    456449 |  |     LeoxgtMeersns atgeemQpuliaettel ycFoantsatl (cchoanrs*t  acbhsalr_*n oanbnsull_ln oMnankuelClh efciklOep,S tirnitn gl(i n e ,\

            | |                                      ^                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2latlng_rect.ccIn file included from :s2/s2lax_loop_shape.cc18::
18In file included from :
../src/s2/s2latlng_rect.hIn file included from :../src/s2/s2lax_loop_shape.h26::
41In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2loop.h21::
32In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h41::
21In file included from :
/usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/log/internal/check_op.h::26452:
:/usr/local/clang/include/absl/log/internal/log_message.h1::457 :warning: 38type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]450
:25:   457note:  | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |              x ,   x ,   c o n s t   c hcaorn*s ta bcshla_rn*o nanbuslll_)n
o      n| n                        ^u
ll/usr/local/clang/include/absl/base/nullability.h :f241a:i22l:u rnote: eexpanded from macro 'absl_nonnull'_
ms  g241) | 
#      d| e                                     ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const cIn file included from hs2/s2latlng_rect.cca:r18*:
 In file included from a../src/s2/s2latlng_rect.hb:s26l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37M:
aIn file included from k/usr/local/clang/include/absl/log/internal/check_impl.he:C21h:
e/usr/local/clang/include/absl/log/internal/check_op.hc:k180O:p42S:t rwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
g(     180\ | 
A      B| S                              ^L
_A/usr/local/clang/include/absl/base/nullability.hT:T241R:I22B:U Tnote: Eexpanded from macro 'absl_nonnull'_
PU  R241E | _#FdUeNfCiTnIeO Na bcsoln_snto ncnhualrl*  _aNbosnln_unloln
n      u| l                     ^l
 MakeCIn file included from hs2/s2lax_loop_shape.cce:c18k:
FIn file included from a../src/s2/s2lax_loop_shape.hi:l41S:
tIn file included from r../src/s2/s2loop.hi:n32g:
(In file included from 
../src/s2/base/logging.h      :| 21                                         ^:

In file included from /usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h::2221::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'454
:1:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
d/usr/local/clang/include/absl/log/internal/check_op.he:f450i:n25e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_  n450o | n n u l l   _xN,o nxn,u lclo
n      s| t                     ^ 
char* absl_In file included from ns2/s2latlng_rect.cco:n18n:
uIn file included from l../src/s2/s2latlng_rect.hl:)26
:
      In file included from | ../src/s2/base/logging.h                        ^:
21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h241::3722:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nonnull'21
:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 181#:d25e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s181l | _ n o n ncuolnls t_ Naobnsnlu:l:lS
t      a| t                     ^u
s* absl_nonnull statuIn file included from ss2/s2lax_loop_shape.cc,: 18c:
oIn file included from n../src/s2/s2lax_loop_shape.hs:t41 :
cIn file included from h../src/s2/s2loop.ha:r32*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21p:
r/usr/local/clang/include/absl/log/internal/check_op.he:f455i:x1):; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                        ^

/usr/local/clang/include/absl/base/nullability.h  :455241 | :A22B:S Lnote: _expanded from macro 'absl_nonnull'L
OG  _241I | N#TdEeRfNiAnLe_ DaEbFsIlN_En_oMnAnKuEl_lC H_ENCoKn_nOuPl_lS
T      R| I                     ^N
G_EXTERN(douIn file included from bs2/s2latlng_rect.ccl:e18):
;In file included from 
../src/s2/s2latlng_rect.h      :| 26^:

In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/check_op.h::21449:
:In file included from 31/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  /usr/local/clang/include/absl/log/internal/check_op.h449: | 181 : 58e:x twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
n te  m181p | l a t e  ccoonnsstt  acbhsalr:*: Satbastlu_sn*o nanbuslll_ nMoankneuClhle csktOaptSutsr,i ncgo(n s t  \c
h      a| r                              ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241p | r#edfeifxi)n;e
       a| b                                                         ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonIn file included from ns2/s2lax_loop_shape.ccu:l18l:
 In file included from _../src/s2/s2lax_loop_shape.hN:o41n:
nIn file included from u../src/s2/s2loop.hl:l32
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |   In file included from  s2/s2latlng_rect.cc : 18 :
xIn file included from ,../src/s2/s2latlng_rect.h :x26,:
 In file included from c../src/s2/base/logging.ho:n21s:
tIn file included from  /usr/local/clang/include/absl/log/check.hc:h37a:
rIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_189n:o28n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
)
      |                           ^189
 | /usr/local/clang/include/absl/base/nullability.hi:n241l:i22n:e  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | a#bdself:i:nSet aatbussl*_ naobnsnlu_lnlo n_nNuolnln uAlslS
t      a| t                     ^u
s(const absl::StaIn file included from ts2/s2lax_loop_shape.ccu:s18&:
 In file included from s../src/s2/s2lax_loop_shape.h): 41{:

In file included from       ../src/s2/s2loop.h| :                           ^32
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e456f:i1n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n456o | nAnBuSlLl_ L_ONGo_nInNuTlElR
N      A| L                     ^_
DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
In file included from   s2/s2latlng_rect.cc449: | 18 :
 In file included from e../src/s2/s2latlng_rect.hx:t26e:
rIn file included from n../src/s2/base/logging.h :t21e:
mIn file included from p/usr/local/clang/include/absl/log/check.hl:a37t:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 193c:h21a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n193o | ncnounlslt  MaabkselC:h:eSctkaOtpuSst*r ianbgs(l _ n o\n
n      u| l                              ^l
 A/usr/local/clang/include/absl/base/nullability.hs:S241t:a22t:u snote: (expanded from macro 'absl_nonnull'c
on  s241t |  #adbesfli:n:eS taabtsuls_Onro<nTn>u&l ls )_ N{o
n      n| u                    ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2lax_loop_shape.cc#:d18e:
fIn file included from i../src/s2/s2lax_loop_shape.hn:e41 :
aIn file included from b../src/s2/s2loop.hs:l32_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h
:      456| :                     ^1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonIn file included from ns2/s2latlng_rect.ccu:l18l:
)In file included from 
../src/s2/s2latlng_rect.h      :| 26                        ^:

In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d202e:f46i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n202o | n n uelxlp l_iNcointn uClhle
c      k| O                     ^p
MessageBuilder(const char* In file included from as2/s2lax_loop_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_loop_shape.ho:n41n:
uIn file included from l../src/s2/s2loop.hl: 32e:
xIn file included from p../src/s2/base/logging.hr:t21e:
xIn file included from t/usr/local/clang/include/absl/log/check.h):;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                                             ^:
21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241457::221::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #457d | eAfBiSnLe_ LaObGs_lI_NnToEnRnNuAlLl_ D_ENFoInNnEu_lMlA
K      E| _                     ^C
HECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |  In file included from  s2/s2latlng_rect.cce:x18t:
eIn file included from r../src/s2/s2latlng_rect.hn: 26t:
eIn file included from m../src/s2/base/logging.hp:l21a:
tIn file included from e/usr/local/clang/include/absl/log/check.h :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht: 21c:
h/usr/local/clang/include/absl/log/internal/check_op.ha:r209*: 15a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n209u | l l  cMoanksetC hcehcakrO*p Satbrsiln_gn(o n n u\l
l       | N                              ^e
wS/usr/local/clang/include/absl/base/nullability.ht:r241i:n22g:( )note: ;expanded from macro 'absl_nonnull'

      |                 ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _NonnIn file included from us2/s2lax_loop_shape.ccl:l18
:
      In file included from | ../src/s2/s2lax_loop_shape.h                     ^:
41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2latlng_rect.cc::45818::
1In file included from :../src/s2/s2latlng_rect.h :warning: 26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21:
  In file included from 458/usr/local/clang/include/absl/log/check.h | :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:L21O:
G/usr/local/clang/include/absl/log/internal/check_op.h_:I226N:T59E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_DEF  I226N | Ev_oMiAdK EM_aCkHeECChKe_cOkPO_pSVTaRlIuNeGS_tErXiTnEgR(Ns(tcdo:n:sots tsrteda:m:&s torsi,n gc&o)n;s
t       | v^o
id/usr/local/clang/include/absl/log/internal/check_op.h*: 449a:b31s:l _note: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
lla  b449l | e   pe)x;t
e      r| n                                                          ^ 
te/usr/local/clang/include/absl/base/nullability.hm:p257l:a23t:e  note: cexpanded from macro 'absl_nullable'o
nst   257c | h#adre*f ianbes la_bnsoln_nnuullll aMbalkee C_hNeuclklOapbSlter
i      n| g                      ^(
   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2lax_loop_shape.ccs2/s2latlng_rect.cc::1818:
:
In file included from In file included from ../src/s2/s2lax_loop_shape.h../src/s2/s2latlng_rect.h::4126:
:
In file included from In file included from ../src/s2/s2loop.h../src/s2/base/logging.h::3221:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_impl.h::3721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_op.h::21276:
:/usr/local/clang/include/absl/log/internal/check_op.h13::459 :warning: 1type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
276 | co  n459s | tA BvSoLi_dL*O Ga_bIsNlT_EnRuNlAlLa_bDlEeF IoNpEe_rMaAtKoEr_<C<H(EsCtKd_:O:Po_sStTrReIaNmG&_,E
X      T| E            ^R
N(/usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  anote: bexpanded from macro 'absl_nullable's
l:  :257s | t#rdienfgi_nvei eawb&s)l;_
n      u| l^l
ab/usr/local/clang/include/absl/log/internal/check_op.hl:e449 :_31N:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
ble  
449       | |                        ^ 
extern tempIn file included from ls2/s2latlng_rect.cca:t18e:
 In file included from c../src/s2/s2latlng_rect.ho:n26s:
tIn file included from  ../src/s2/base/logging.hc:h21a:
rIn file included from */usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u277l:l50 :M awarning: ktype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
CheckOp  S277t | r i n g (       \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   acbosnls_tn ovnoniudl*l  a_bNsoln_nnuullll
a      b| l                     ^e
 value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2lax_loop_shape.cc:: 18note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2lax_loop_shape.h:41  :
257In file included from  | ../src/s2/s2loop.h#:d32e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e459 :_1N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
b/usr/local/clang/include/absl/log/internal/check_op.hl:e450
:      25| :                      ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, coIn file included from ns2/s2latlng_rect.ccs:t18 :
cIn file included from h../src/s2/s2latlng_rect.ha:r26*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:)21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                        ^278
:13/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
278   | 241c | o#ndsetf ivnoei da*b salb_snlo_nnnuulllla b_lNeo nonpuelrla
t      o| r                     ^<
<(std::ostream&, std::nullptr_tIn file included from )s2/s2lax_loop_shape.cc;:
18      :
| In file included from             ^../src/s2/s2lax_loop_shape.h
:41:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2loop.h257::3223:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'absl_nullable'21
:
In file included from /usr/local/clang/include/absl/log/check.h  :25737 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 460a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab  l460e |  A_BNSuLl_lLaObGl_eI
N      T| E                      ^R
NAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template constIn file included from  s2/s2latlng_rect.ccc:h18a:
rIn file included from *../src/s2/s2latlng_rect.h :a26b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from M/usr/local/clang/include/absl/log/internal/check_impl.ha:k21e:
C/usr/local/clang/include/absl/log/internal/check_op.hh:e292c:k13O:p Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ing(   292  |  c\o
n      s| t                              ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle foipneer aatbosrl<_<n(osntndu:l:lb a_sNiocn_nousltlr
e      a| m                     ^<
char,In file included from  s2/s2lax_loop_shape.ccT:r18a:
iIn file included from t../src/s2/s2lax_loop_shape.hs:>41&:
,In file included from 
../src/s2/s2loop.h      :| 32            ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 460#:d66e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s460l | _AnBoSnLn_uLlOlG __INNoTnEnRuNlAlL
_      D| E                     ^F
INE_MAKE_CHECK_OIn file included from Ps2/s2latlng_rect.cc_:S18T:
RIn file included from I../src/s2/s2latlng_rect.hN:G26_:
EIn file included from X../src/s2/base/logging.hT:E21R:
NIn file included from (/usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :c21h:
a/usr/local/clang/include/absl/log/internal/check_op.hr:*293 :a49b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u293l | l ) ; 
        |                                                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
        241  |  # d e f i n e   a b sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l);
      |                                                 ^In file included from 
s2/s2lax_loop_shape.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2lax_loop_shape.h::2241::
 In file included from ../src/s2/s2loop.hnote: :expanded from macro 'absl_nonnull'32
:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n460o:n66n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
note:       expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_nonnull _NIn file included from os2/s2latlng_rect.ccn:n18u:
lIn file included from l../src/s2/s2latlng_rect.h
:      26| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from 37s2/s2lax_loop_shape.cc:
:In file included from 18/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2lax_loop_shape.h:
:/usr/local/clang/include/absl/log/internal/check_op.h41::
295In file included from :../src/s2/s2loop.h20::32 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :29537 | :
cIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:s21t:
 /usr/local/clang/include/absl/log/internal/check_op.hs:i460g:n1e:d  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   460a | bAsBlS_Ln_oLnOnGu_lIlN ToEpReNrAaLt_oDrE<F<I(NsEt_dM:A:KbEa_sCiHcE_CoKs_tOrPe_aSmT<RcIhNaGr_,E XTTrEaRiNt(sc>o&n,s
t       | c                   ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l#)d;e
f      i| n^e
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s450l:_25n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
ll   450_ | N o n n u l lx
,       | x                     ^,
 const char* absIn file included from ls2/s2latlng_rect.cc_:n18o:
nIn file included from n../src/s2/s2latlng_rect.hu:l26l:
)In file included from 
../src/s2/base/logging.h      :| 21                        ^:

In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:296  :24163 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   296a | b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
                   const sigIn file included from ns2/s2lax_loop_shape.cce:d18 :
cIn file included from h../src/s2/s2lax_loop_shape.ha:r41*:
 In file included from a../src/s2/s2loop.hb:s32l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:)37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                                              ^21
:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241461::221::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #461d | eAfBiSnLe_ LaObGs_lI_NnToEnRnNuAlLl_ D_ENFoInNnEu_lMlA
K      E| _                     ^C
HECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31In file included from :s2/s2latlng_rect.cc :note: 18expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from ../src/s2/s2latlng_rect.h:26  :
449In file included from  | ../src/s2/base/logging.h : 21e:
xIn file included from t/usr/local/clang/include/absl/log/check.he:r37n:
 In file included from t/usr/local/clang/include/absl/log/internal/check_impl.he:m21p:
l/usr/local/clang/include/absl/log/internal/check_op.ha:t298e: 22c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 cha  r298* |  caobnsslt_ nuonnsniuglnle dM ackheaCrh*e cakbOsplS_tnroinnngu(l l   o\p
e      r| a                              ^t
or/usr/local/clang/include/absl/base/nullability.h<:<241(:s22t:d :note: :expanded from macro 'absl_nonnull'b
as  i241c | _#odsetfrienaem <acbhsalr_,n oTnrnauiltls >_&N,o
n      n| u                     ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2lax_loop_shape.cc:  18241:
 | In file included from #../src/s2/s2lax_loop_shape.hd:e41f:
iIn file included from n../src/s2/s2loop.he: 32a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u462l:l24
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  462 |     const sIn file included from is2/s2latlng_rect.ccg:n18e:
dIn file included from  ../src/s2/s2latlng_rect.hc:h26a:
rIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
)/usr/local/clang/include/absl/log/internal/check_op.h;:
299      :| 67                       ^:
 /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 299expanded from macro 'absl_nonnull' | 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
       In file included from cs2/s2lax_loop_shape.cco:n18s:
tIn file included from  ../src/s2/s2lax_loop_shape.hu:n41s:
iIn file included from g../src/s2/s2loop.hn:e32d:
 In file included from c../src/s2/base/logging.hh:a21r:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l462l:)24;:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                                  ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2latlng_rect.ccs2/s2lax_loop_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2latlng_rect.h../src/s2/s2lax_loop_shape.h::2641:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2loop.h::2132:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/base/logging.h::3721:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_impl.h::32321::
46/usr/local/clang/include/absl/log/internal/check_op.h:: 463:warning: 1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
323 |     463f | rAiBeSnLd_ LvOoGi_dI NATbEsRlNFAoLr_mDaEtFFIlNuEs_hM(ASKtEr_iCnHgEiCfKy_SOiPn_kS*T RaIbNsGl__EnXoTnEnRuNl(l
       s| i^n
k,/usr/local/clang/include/absl/log/internal/check_op.h
:      449| :                                             ^31
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'241
:22:   note: 449expanded from macro 'absl_nonnull' | 
    e241x | t#edrenf itneem palbastle_ ncoonnnsutl lc h_aNro*n naublsll
_      n| o                     ^n
null MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2latlng_rect.ccn:o18n:
nIn file included from u../src/s2/s2latlng_rect.hl:l26 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 428s2/s2lax_loop_shape.cc::4418::
 In file included from ../src/s2/s2lax_loop_shape.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]41
:
In file included from ../src/s2/s2loop.h:32:
  In file included from 428../src/s2/base/logging.h | :A21B:
SIn file included from L/usr/local/clang/include/absl/log/check.h_:A37T:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:B21U:
T/usr/local/clang/include/absl/log/internal/check_op.hE:_465R:E66T:U Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S_NO
NNU  L465L |  AcBoSnLs_tL OcGh_aIrN*T EaRbNsAlL__nDoEnFnIuNlEl_ MMAaKkEe_CChHeEcCkKO_pOSPt_rSiTnRgI(N
G      _| E                                           ^X
TER/usr/local/clang/include/absl/base/nullability.hN:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'v
oi  d241* |  #adbesfli_nneo nanbuslll_)n;o
n      n| u                                                                 ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define aIn file included from bs2/s2latlng_rect.ccs:l18_:
nIn file included from o../src/s2/s2latlng_rect.hn:n26u:
lIn file included from l../src/s2/base/logging.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                     ^:

/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2lax_loop_shape.cc
:18:
In file included from ../src/s2/s2lax_loop_shape.h  :42941 | :
 In file included from  ../src/s2/s2loop.h : 32T:
1In file included from  ../src/s2/base/logging.hv:121,:
 In file included from T/usr/local/clang/include/absl/log/check.h2: 37v:
2In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t465 :c66h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241e | x#pdretfeixnte)  aAbBsSlL__nAoTnTnRuIlBlU T_EN_oNnOnIuNlLlI
N      E| ;                     ^

      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2lax_loop_shape.cc:: 18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2lax_loop_shape.h:41  :
241In file included from  | ../src/s2/s2loop.h#:d32e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 465_:N1o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^465
 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHIn file included from Es2/s2latlng_rect.ccC:K18_:
OIn file included from P../src/s2/s2latlng_rect.h_:S26T:
RIn file included from I../src/s2/base/logging.hN:G21_:
EIn file included from X/usr/local/clang/include/absl/log/check.hT:E37R:
NIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 432v:o13i:d *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _432n | ocnonnusltl )c;h
a      r| *^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l450_:n25o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'll Ma
ke  C450h | e c k O p S txr,i nxg,( Tc1o nvs1t,  cTh2a rv*2 ,a
b      s| l            ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:) 
      note: | expanded from macro 'absl_nonnull'                        ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      In file included from | s2/s2latlng_rect.cc                     ^:
18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                          In file included from  s2/s2lax_loop_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_loop_shape.h : 41 :
 In file included from  ../src/s2/s2loop.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21c:
oIn file included from n/usr/local/clang/include/absl/log/check.hs:t37 :
cIn file included from h/usr/local/clang/include/absl/log/internal/check_impl.ha:r21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b502s:l1_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull   502e | xApBrStLe_xLtO)G _{I
N      T| E                                                       ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241C:H22E:C Knote: _expanded from macro 'absl_nonnull'O
P_  I241M | P#Ld(eCfhiencek _aEbQs,l _=n=o)n
n      u| l^l
 _/usr/local/clang/include/absl/log/internal/check_op.hN:o488n:n32u:l lnote: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'      
|                      ^
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47:In file included from  s2/s2latlng_rect.ccnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'18
:
In file included from ../src/s2/s2latlng_rect.h:  26489:
 | In file included from  ../src/s2/base/logging.h : 21   c:
oIn file included from n/usr/local/clang/include/absl/log/check.hs:t37 :
TIn file included from 1/usr/local/clang/include/absl/log/internal/check_impl.h&: 21v:
1/usr/local/clang/include/absl/log/internal/check_op.h,: 451c:o1n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
2&   v4512 | ,A BcSoLn_sLtO Gc_hIaNrT*E RaNbAsLl__DnEoFnInNuEl_lM AeKxEp_rCtHeExCtK)_ O{P _ S T R I\N
G      _| E                                              ^X
TE/usr/local/clang/include/absl/base/nullability.hR:N241(:b22o:o lnote: )expanded from macro 'absl_nonnull';

        | 241^ | 
#d/usr/local/clang/include/absl/log/internal/check_op.he:f449i:n31e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_n  o449n | n u lelx t_eNronn ntuelmlp
l      a| t                     ^e
 const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2lax_loop_shape.cc
:18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 450../src/s2/s2lax_loop_shape.h::2541::
 In file included from note: ../src/s2/s2loop.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
32:
In file included from   ../src/s2/base/logging.h450: | 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
xIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :x21,:
 /usr/local/clang/include/absl/log/internal/check_op.hc:o502n:s1t:  cwarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
r*/usr/local/clang/include/absl/log/internal/check_op.h :a497b:s32l:_ nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
null  )497
 |        |                          ^i
nl/usr/local/clang/include/absl/base/nullability.hi:n241e: 22c:o nnote: sexpanded from macro 'absl_nonnull't
ex  p241r |  #cdoenfsitn ec haabrs*l _anbosnln_unlull l_aNbolnen unlalm
e      #| #                     ^I
mpl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
In file included from   s2/s2lax_loop_shape.cc450: | 18 :
 In file included from  ../src/s2/s2lax_loop_shape.h : 41 :
xIn file included from ,../src/s2/s2loop.h :x32,:
 In file included from c../src/s2/base/logging.ho:n21s:
tIn file included from  /usr/local/clang/include/absl/log/check.hc:h37a:
rIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n503o:n1n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])

      |                         ^
  /usr/local/clang/include/absl/base/nullability.h503: | 241A:B22S:L _note: Lexpanded from macro 'absl_nonnull'O
G_  I241N | T#EdReNfAiLn_eC HaEbCsKl__OnPo_nInMuPlLl( C_hNeocnkn_uNlEl,
       !| =                     ^)

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline In file included from cs2/s2latlng_rect.cco:n18s:
tIn file included from e../src/s2/s2latlng_rect.hx:p26r:
 In file included from c../src/s2/base/logging.ho:n21s:
tIn file included from  /usr/local/clang/include/absl/log/check.hc:h37a:
rIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_458n:u1l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e n  a458m | eA#B#SILm_pLlO(G _ I N T E R N A L _ D E F I N E _ M A\K
E      _| C                               ^H
ECK/usr/local/clang/include/absl/base/nullability.h_:O257P:_23S:T Rnote: Iexpanded from macro 'absl_nullable'N
G_  E257X | T#EdReNf(icnoen satb sslt_dn:u:lsltarbilneg &_)N;u
l      l| a^b
le/usr/local/clang/include/absl/log/internal/check_op.h
:      449| :                      ^31
: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extIn file included from es2/s2lax_loop_shape.ccr:n18 :
tIn file included from e../src/s2/s2lax_loop_shape.hm:p41l:
aIn file included from t../src/s2/s2loop.he: 32c:
oIn file included from n../src/s2/base/logging.hs:t21 :
cIn file included from h/usr/local/clang/include/absl/log/check.ha:r37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o503n:n1u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
ak/usr/local/clang/include/absl/log/internal/check_op.he:C489h:e47c:k Onote: pexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'S
trin  g489( |       \ 
        | c                              ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241T:122&:  vnote: 1expanded from macro 'absl_nonnull',
 c  o241n | s#td eTf2i&n ev 2a,b sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l exprtext) {     \In file included from 
s2/s2latlng_rect.cc      :| 18                                              ^:

In file included from ../src/s2/s2latlng_rect.h/usr/local/clang/include/absl/base/nullability.h::26241:
:In file included from 22../src/s2/base/logging.h:: 21note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e458 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u450l:l25 :_ Nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
nu  l450l | 
        |                       ^ 
  x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2lax_loop_shape.cc::2118:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2lax_loop_shape.h459::411:
:In file included from  ../src/s2/s2loop.h:warning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21:
  In file included from 459/usr/local/clang/include/absl/log/check.h | :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:L21O:
G/usr/local/clang/include/absl/log/internal/check_op.h_:I503N:T1E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_D/usr/local/clang/include/absl/log/internal/check_op.hE:F497I:N32E:_ Mnote: Aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'K
E_CH  E497C | K _ OiPn_lSiTnReI NcGo_nEsXtTeExRpNr( ccoonnsstt  acbhsalr:*: satbrsiln_gn_uvlileawb&l)e; 
n      a| m^e
##/usr/local/clang/include/absl/log/internal/check_op.hI:m449p:l31(:   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
      449  |      e x t e r n   t\e
m      p| l                               ^a
te/usr/local/clang/include/absl/base/nullability.h :c257o:n23s:t  note: cexpanded from macro 'absl_nullable'h
ar  *257  | a#bdself_innoen naublsll _MnauklelCahbelcek O_pNSutlrlianbgl(e 
        | \                      ^

      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2lax_loop_shape.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2lax_loop_shape.h | :#41d:
eIn file included from f../src/s2/s2loop.hi:n32e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n503n:u1l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |     In file included from  s2/s2latlng_rect.cc :i18n:
tIn file included from  ../src/s2/s2latlng_rect.hv:126,:
 In file included from i../src/s2/base/logging.hn:t21 :
vIn file included from 2/usr/local/clang/include/absl/log/check.h,: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
c/usr/local/clang/include/absl/log/internal/check_op.hh:a459r:*1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/log/internal/check_op.ho:n450n:u25l:l  note: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'x
pr  t450e | x t )   {    x ,   x ,   c o n s t   c h a r\*
       a| b                                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote: )expanded from macro 'absl_nonnull'

      |                           ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString( In file included from  s2/s2lax_loop_shape.cc :\18
:
      In file included from | ../src/s2/s2lax_loop_shape.h                              ^:
41:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2loop.h241::3222:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
ne/usr/local/clang/include/absl/log/internal/check_op.h :a504b:s1l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
null   504_ | NAoBnSnLu_lLlO
G      _| I                     ^N
TERNALIn file included from _s2/s2latlng_rect.ccC:H18E:
CIn file included from K../src/s2/s2latlng_rect.h_:O26P:
_In file included from I../src/s2/base/logging.hM:P21L:
(In file included from C/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hh:e21c:
k/usr/local/clang/include/absl/log/internal/check_op.h_:L464E:,26 :< =warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^464
 |   /usr/local/clang/include/absl/log/internal/check_op.h : 488c:o32n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
nsi  g488n | e d  icnhlairn*e  acbosnls_tneoxnpnru lclo)n;s
t       | c                         ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed enfaimnee# #aIbmspll_(n o n n u l l   _ N o n n u l l 
        |                       ^\

      |                                ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 257s2/s2latlng_rect.cc::2318::
 In file included from note: ../src/s2/s2latlng_rect.hexpanded from macro 'absl_nullable':
26:
In file included from   ../src/s2/base/logging.h257: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n464u:l26l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:a blnote: eexpanded from macro 'absl_nonnull'

      |                         ^241
 | #define absl_nonnuIn file included from ls2/s2lax_loop_shape.ccl: 18_:
NIn file included from o../src/s2/s2lax_loop_shape.hn:n41u:
lIn file included from l../src/s2/s2loop.h
:      32| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2latlng_rect.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTE21R:
N/usr/local/clang/include/absl/log/internal/check_op.hA:L504_:D1E:F Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_M/usr/local/clang/include/absl/log/internal/check_op.hA:K489E:_47C:H Enote: Cexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'K
_OP_  S489T | R I N G _ E XcToEnRsNt( 
T      1| &^ 
v1/usr/local/clang/include/absl/log/internal/check_op.h,: 450c:o25n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'T
2&   450v | 2 ,   c o n sxt,  cxh,a rc*o nasbts lc_hnaorn*n ualbls le_xnporntneuxltl)) 
{       |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                                              ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);In file included from 
s2/s2lax_loop_shape.cc      :| 18^:

In file included from ../src/s2/s2lax_loop_shape.h/usr/local/clang/include/absl/log/internal/check_op.h::41449:
:In file included from 31../src/s2/s2loop.h:: 32note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
../src/s2/base/logging.h:21:
  In file included from 449/usr/local/clang/include/absl/log/check.h | : 37 :
eIn file included from x/usr/local/clang/include/absl/log/internal/check_impl.ht:e21r:
n/usr/local/clang/include/absl/log/internal/check_op.h :t504e:m1p:l awarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 c/usr/local/clang/include/absl/log/internal/check_op.ho:n497s:t32 :c hnote: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'r
* ab  s497l | _ n oinnnluilnle  McaoknesCtheexcpkrO pcSotnrsitn gc(h a r *\ 
a      b| s                              ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22: bnote: lexpanded from macro 'absl_nonnull'e
 n  a241m | e##d#eIfmipnle(  a b s l _ n o n n u l l   _ N o n n u\l
l      
|                                      ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2latlng_rect.ccnote: :expanded from macro 'absl_nullable'18
:
In file included from ../src/s2/s2latlng_rect.h  :25726 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:a465b:l66e:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b465l | eA
B      S| L                      ^_
LOG_INTERNALIn file included from _s2/s2lax_loop_shape.ccD:E18F:
IIn file included from N../src/s2/s2lax_loop_shape.hE:_41M:
AIn file included from K../src/s2/s2loop.hE:_32C:
HIn file included from E../src/s2/base/logging.hC:K21_:
OIn file included from P/usr/local/clang/include/absl/log/check.h_:S37T:
RIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:G21_:
E/usr/local/clang/include/absl/log/internal/check_op.hX:T504E:R1N:( cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st/usr/local/clang/include/absl/log/internal/check_op.h :v498o:i35d:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_  n498o | n n u l l ) ;i
n      t|                                                                   ^v
1,/usr/local/clang/include/absl/base/nullability.h :i241n:t22 :v 2note: ,expanded from macro 'absl_nonnull' 
co  n241s | t# dcehfairn*e  aabbssll__nnoonnnnuullll  e_xNporntneuxltl)
       {|                       ^ 
        In file included from  s2/s2latlng_rect.cc : 18 :
 In file included from  ../src/s2/s2latlng_rect.h :\26
:
      In file included from | ../src/s2/base/logging.h                                  ^:
21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h241::3722:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nonnull'21
:
/usr/local/clang/include/absl/log/internal/check_op.h  :241465 | :#66d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 | In file included from  s2/s2lax_loop_shape.cc :i18n:
lIn file included from i../src/s2/s2lax_loop_shape.hn:e41 :
cIn file included from o../src/s2/s2loop.hn:s32t:
eIn file included from x../src/s2/base/logging.hp:r21 :
cIn file included from o/usr/local/clang/include/absl/log/check.hn:s37t:
 In file included from c/usr/local/clang/include/absl/log/internal/check_impl.hh:a21r:
* /usr/local/clang/include/absl/log/internal/check_op.ha:b506s:l1_:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
able   n506a | mAeB#S#LI_mLpOlG(_ I N T E R N A L _ C H E C K _ O P _ I\M
P      L| (                               ^C
he/usr/local/clang/include/absl/base/nullability.hc:k257_:G23E:,  note: >expanded from macro 'absl_nullable'=
)
        257|  | ^#
def/usr/local/clang/include/absl/log/internal/check_op.hi:n488e: 32a:b snote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
nul  l488a | b l ei n_lNiunlel acbolnes
t      e| x                      ^p
r const cIn file included from hs2/s2latlng_rect.cca:r18*:
 In file included from a../src/s2/s2latlng_rect.hb:s26l:
_In file included from n../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37 :
nIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hm:e21#:
#/usr/local/clang/include/absl/log/internal/check_op.hI:m503p:l1(:   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      498\ | 
        |                                 ^ 
  i/usr/local/clang/include/absl/base/nullability.hn:t257 :v231:,  note: iexpanded from macro 'absl_nullable'n
t   v2572 | ,# dceofnisnte  cahbasrl*_ naublslla_bnloen n_uNlull leaxbplret
e      x| t                      ^)
 {              In file included from  s2/s2lax_loop_shape.cc : 18\:

In file included from       ../src/s2/s2lax_loop_shape.h| :                                  ^41
:
In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/base/nullability.h::32241:
:In file included from 22../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.h
:37  :
241In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
f/usr/local/clang/include/absl/log/internal/check_op.hi:n506e: 1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
no/usr/local/clang/include/absl/log/internal/check_op.hn:n489u:l47l:  _note: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'o
nnul  l489
 |        |                       ^ 
   const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2lax_polygon_shape.ccN:o18n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l30
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2lax_loop_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_loop_shape.hu:l41l:
aIn file included from b../src/s2/s2loop.hl:e32 :
_In file included from N../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                      ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2lax_loop_shape.cc:: 18note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2lax_loop_shape.h:41  :
257In file included from  | ../src/s2/s2loop.h#:d32e:
fIn file included from i../src/s2/base/logging.h:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
ab/usr/local/clang/include/absl/log/internal/check_op.hl:e507 :_1N:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
ble
      |                         ^507
 | ABSL_LOGIn file included from _s2/s2latlng_rect.ccI:N18T:
EIn file included from R../src/s2/s2latlng_rect.hN:A26L:
_In file included from C../src/s2/base/logging.hH:E21C:
KIn file included from _/usr/local/clang/include/absl/log/check.hO:P37_:
IIn file included from M/usr/local/clang/include/absl/log/internal/check_impl.hP:L21(:
C/usr/local/clang/include/absl/log/internal/check_op.hh:e504c:k1_:G Twarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
>)/usr/local/clang/include/absl/log/internal/check_op.h
:      498| :^35
: note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
488:32:   note: 498expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' | 
      488  |   i nitn lvi1n,e  icnotn svt2e,x pcro ncsotn scth acrh*a ra*b salb_snlo_nnnuulllla belxep rntaemxet#)# I{m p l (                            \ 
        |                                    ^ 
\
/usr/local/clang/include/absl/base/nullability.h      :| 241                               ^:
22: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel 
_      N| u                     ^l
lable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, constIn file included from  s2/s2lax_loop_shape.ccc:h18a:
rIn file included from *../src/s2/s2lax_loop_shape.h :a41b:
sIn file included from l../src/s2/s2loop.h_:n32o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from e/usr/local/clang/include/absl/log/check.hx:p37r:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hx:t21):
 {/usr/local/clang/include/absl/log/internal/check_op.h : 511 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
        511  |  c\o
n      s| t                                  ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef iCnhee cakbsstlr_cnmopntnruulelI m_pNlo(n
n      u| l            ^l

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NulIn file included from ls2/s2latlng_rect.cca:b18l:
eIn file included from 
../src/s2/s2latlng_rect.h      :| 26                      ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2lax_loop_shape.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2lax_loop_shape.h21::
41:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2loop.h506::321:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37  :
506In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
L/usr/local/clang/include/absl/log/internal/check_op.h_:L519O:G17_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RN  A519L | _ C H E CcKo_nOsPt_ IcMhPaLr(*C haebcskl__GnEo,n n>u=l)l
       e| x^p
rt/usr/local/clang/include/absl/log/internal/check_op.he:x488t:)32;:
       | note:                 ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

/usr/local/clang/include/absl/base/nullability.h:241:  22488: |   note:  expanded from macro 'absl_nonnull'i
nl  i241n | e# dceofnisntee xapbrs lc_onnosntn uclhla r_*N oanbnsull_ln
u      l| l                     ^a
ble name##ImpIn file included from ls2/s2lax_loop_shape.cc(: 18 :
 In file included from  ../src/s2/s2lax_loop_shape.h : 41 :
 In file included from  ../src/s2/s2loop.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h\:
37      :
| In file included from                                ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::257520::2313::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  257   | 520# | dceofnisnte  cahbasrl*_ naublslla_bnluel l_aNbullel aCbhleec
k      s| t                      ^r
casecmpfalseIIn file included from ms2/s2latlng_rect.ccp:l18(:

In file included from       ../src/s2/s2latlng_rect.h| :            ^
26:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h257::2123:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nullable'37
:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h257: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f506i:n1e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:u489l:l47a:b lnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
_Nu  l489l | a b l e 
        | c                      ^o
nst TIn file included from 1s2/s2lax_loop_shape.cc&: 18v:
1In file included from ,../src/s2/s2lax_loop_shape.h :c41o:
nIn file included from s../src/s2/s2loop.ht: 32T:
2In file included from &../src/s2/base/logging.h :v212:
,In file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :c21h:
a/usr/local/clang/include/absl/log/internal/check_op.hr:*521 :a17b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u521l | l   e x pcrotnesxtt )c h{a r *   a b\s
l      _| n                                              ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :s 1note: ,expanded from macro 'absl_nonnull' 
co  n241s | t# dcehfairn*e  aabbssll__nnuolnlnaubllle  _sN2o,n
n      u| l                ^l

      /usr/local/clang/include/absl/base/nullability.h| :                     ^257
:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1,In file included from  s2/s2latlng_rect.ccc:o18n:
sIn file included from t../src/s2/s2latlng_rect.h :c26h:
aIn file included from r../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
l/usr/local/clang/include/absl/log/internal/check_op.he: 506s:21,:
       warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                              ^

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::497257::3223::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'absl_nullable'

  257 |   #497d | e f iinnel ianbes lc_onnusltleaxbplre  c_oNnusltl acbhlaer
*       | a                      ^b
sl_nuIn file included from ls2/s2lax_loop_shape.ccl:a18b:
lIn file included from e../src/s2/s2lax_loop_shape.h :n41a:
mIn file included from e../src/s2/s2loop.h#:#32I:
mIn file included from p../src/s2/base/logging.hl:(21 :
 In file included from  /usr/local/clang/include/absl/log/check.h: 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 522 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                                  ^522
 |  /usr/local/clang/include/absl/base/nullability.h : 257 :c23o:n snote: texpanded from macro 'absl_nullable' 
ch  a257r | *# daebfsiln_en oanbnsull_ln uelxlparbtleex t_)N;u
l      l| a                ^b
le/usr/local/clang/include/absl/base/nullability.h
:      241| :                      ^22
: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2latlng_rect.cce:f18i:
nIn file included from e../src/s2/s2latlng_rect.h :a26b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l506l:
1      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2/s2lax_loop_shape.cc:  18257:
 | In file included from #../src/s2/s2lax_loop_shape.hd:e41f:
iIn file included from n../src/s2/s2loop.he: 32a:
bIn file included from s../src/s2/base/logging.hl:_22n:
uIn file included from l/usr/local/clang/include/absl/log/log.hl:a209b:
lIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.h :_20N:
uIn file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.hl:a63b:
le/usr/local/clang/include/absl/log/internal/vlog_config.h
:      49| :                      ^37
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:   2649:
 | In file included from i../src/s2/base/logging.hn:t21 :
RIn file included from e/usr/local/clang/include/absl/log/check.hg:i37s:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:A21n:
d/usr/local/clang/include/absl/log/internal/check_op.hI:n515i:t17i:a lwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]z
e(V  L515o | g S i t ec*o nasbts lc_hnaorn*n ualbls lv_)n;u
l      l| a                                    ^b
le s/usr/local/clang/include/absl/base/nullability.h1:,241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en ualblsalb_lneo nsn2u,l
l       | _                ^N
on/usr/local/clang/include/absl/base/nullability.hn:u257l:l23
:       | note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nullable _Nullable
In file included from       s2/s2lax_loop_shape.cc| :                      ^18
:
In file included from ../src/s2/s2lax_loop_shape.h:In file included from 41s2/s2latlng_rect.cc:
:In file included from 18../src/s2/s2loop.h:
:In file included from 32../src/s2/s2latlng_rect.h:
:In file included from 26../src/s2/base/logging.h:
:In file included from 22../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/log.h:
:In file included from 209/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 20/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/absl_vlog_is_on.h:
:/usr/local/clang/include/absl/log/internal/check_op.h63::
515/usr/local/clang/include/absl/log/internal/vlog_config.h::4763:: 43warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  515 |      63  |   c oenxsptl icchiatr *c oanbsstle_xnpurl lVaLbolgeS ist1e,( ccoonnsstt  cchhaarr**  aabbssll__nnounlnlualbll ef )s
2      ,| 
                                          ^      
|                                               ^/usr/local/clang/include/absl/base/nullability.h
:241/usr/local/clang/include/absl/base/nullability.h::22257::23 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nullable'
  241   | 257# | d#edfeifnien ea basbls_ln_onnunlullalb l_eN o_nNnuulllla
b      l| e                     ^

      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^In file included from 
s2/s2lax_loop_shape.cc:/usr/local/clang/include/absl/base/nullability.h18::
241In file included from :../src/s2/s2lax_loop_shape.h22::41 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2loop.h
:32  :
241In file included from  | ../src/s2/base/logging.h#:d22e:
fIn file included from i/usr/local/clang/include/absl/log/log.hn:e209 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hs:l20_:
nIn file included from o/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:n63u:
l/usr/local/clang/include/absl/log/internal/vlog_config.hl: 96_:N60o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                      ^   
96 |   friend intIn file included from  s2/s2latlng_rect.ccl:o18g:
_In file included from i../src/s2/s2latlng_rect.hn:t26e:
rIn file included from n../src/s2/base/logging.ha:l21::
:In file included from R/usr/local/clang/include/absl/log/check.he:g37i:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.he:r21A:
n/usr/local/clang/include/absl/log/internal/check_op.hd:I517n:i13t:i awarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ze(  V517L | ocgoSnistte *c haabrs*l _anbosnln_unlull lva)b;l
e       | C                                                           ^h
ec/usr/local/clang/include/absl/base/nullability.hk:s241t:r22c:a snote: eexpanded from macro 'absl_nonnull'c
mp  t241r | u#edIemfpiln(e
       a| b            ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'_
No  n257n | u#ldle
f      i| n                     ^e
 absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2lax_loop_shape.cc
:18  :
241In file included from  | ../src/s2/s2lax_loop_shape.h#:d41e:
fIn file included from i../src/s2/s2loop.hn:e32 :
aIn file included from b../src/s2/base/logging.hs:l22_:
nIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h :_20N:
oIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:u63l:
l/usr/local/clang/include/absl/log/internal/vlog_config.h
:      119| :                     ^15
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   cIn file included from os2/s2latlng_rect.ccn:s18t:
 In file included from c../src/s2/s2latlng_rect.hh:a26r:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
c/usr/local/clang/include/absl/log/internal/check_op.ho:n520s:t13 :f iwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
_;
        520|  |               ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea bCshle_cnkosntnruclals e_cNmopnfnaullsle
I      m| p                     ^l
(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2edge_crossings.cc213: | 18 :
 In file included from u../src/s2/s2edge_crossings.hs:i40n:
gIn file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h_:p27o:
iIn file included from n../src/s2/s2coder.ht:e23r:
 In file included from =/usr/local/clang/include/absl/status/status.h :c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29T:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b82s:
lIn file included from _/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/crc/crc32c.hb:i32l:
iIn file included from t/usr/local/clang/include/absl/strings/str_format.hy:_84u:
nk/usr/local/clang/include/absl/strings/internal/str_format/bind.hn:o143w:n11;:
       | warning:                                  ^'enable_if' is a clang extension [-Wgcc-compat]

/usr/local/clang/include/absl/base/nullability.h:289:34:   143note:  | expanded from macro 'absl_nullability_unknown' 
     289  |  # d e f iennea balbes_li_fn(usltlra_bfiolrimtayt__uinnktneorwnna l_:N:uElnls_uurnesCpoencsitfeixepdr
(      s| )                                 ^,
 "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
380 warnings generated.
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      | In file included from                       ^s2/s2furthest_edge_query.cc
:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       cIn file included from os2/s2hausdorff_distance_query.ccn:s16t:
 In file included from s../src/s2/s2hausdorff_distance_query.ht:r23_:
fIn file included from o../src/s2/s1angle.hr:m28a:
tIn file included from _../src/s2/s2point.hi:n25t:
eIn file included from r../src/s2/util/coding/coder.hn:a36l:
:In file included from /usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2loop.cc -o s2/s2loop.o
:../src/s2/base/casts.hP:a34r:
sIn file included from e/usr/local/clang/include/absl/log/log.hd:F209o:
rIn file included from m/usr/local/clang/include/absl/log/internal/log_impl.ha:t22B:
aIn file included from s/usr/local/clang/include/absl/log/internal/log_message.he:*47 :
aIn file included from b/usr/local/clang/include/absl/log/internal/structured_proto.hs:l27_:
nIn file included from o/usr/local/clang/include/absl/log/internal/proto.hn:n34u:
l/usr/local/clang/include/absl/types/span.hl: 739p:c21):
       | warning:                                                    ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h  :739241 | :S22p:a nnote: <expanded from macro 'absl_nonnull'T
>   M241a | k#edSepfainn(eT *a basbls_ln_onnunlullalb l_eN obnenguilnl 
A      B| S                     ^L
_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2furthest_edge_query.cc:: 16:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2furthest_edge_query.h
:29:
  In file included from 257../src/s2/s1angle.h | :#28d:
eIn file included from f../src/s2/s2point.hi:n27e:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
_In file included from N/usr/local/clang/include/absl/strings/cord.hu:l82l:
aIn file included from b/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:e23
:
      In file included from | /usr/local/clang/include/absl/crc/crc32c.h                      ^:
32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2hausdorff_distance_query.cc :a16b:
sIn file included from l../src/s2/s2hausdorff_distance_query.h_:23n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:

In file included from       ../src/s2/base/casts.h| :                     ^34
:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.hIn file included from :s2/s2furthest_edge_query.cc794::168:
:In file included from  ../src/s2/s2furthest_edge_query.h:warning: 29:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h  :79427 | :
 In file included from  ../src/s2/s2coder.h : 23T:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hb:l82e:
 In file included from p/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:r23 :
AIn file included from B/usr/local/clang/include/absl/crc/crc32c.hS:L32_:
A/usr/local/clang/include/absl/strings/str_format.hT:T165R:I8B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
LI  F165E | T I MiEn_tB*O UaNbDs,l _snioznen_utl ls ipz_e;)
       n| o       ^e
xc/usr/local/clang/include/absl/base/nullability.he:p241t: 22{:
       | note:        ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 257#:d23e:f inote: nexpanded from macro 'absl_nullable'e
 a  b257s | l#_dneofninnuel la b_sNlo_nnnuulllla
b      l| e                     ^ 
_Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2furthest_edge_query.cc :a16b:
sIn file included from l../src/s2/s2furthest_edge_query.h_:n29u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from  ../src/s2/s2point.h_:N27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                      ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:In file included from 32s2/s2hausdorff_distance_query.cc:
:16/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 380../src/s2/s2hausdorff_distance_query.h::4323::
 In file included from ../src/s2/s1angle.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:25  :
380In file included from  | ../src/s2/util/coding/coder.hs:t36d:
:In file included from :../src/s2/base/casts.hs:t34r:
iIn file included from n/usr/local/clang/include/absl/log/log.hg:&209 :
SIn file included from t/usr/local/clang/include/absl/log/internal/log_impl.hr:A22p:
pIn file included from e/usr/local/clang/include/absl/log/internal/log_message.hn:d47F:
oIn file included from r/usr/local/clang/include/absl/log/internal/structured_proto.hm:a27t:
(In file included from s/usr/local/clang/include/absl/log/internal/proto.ht:d34::
:/usr/local/clang/include/absl/types/span.hs:t801r:i32n:g *warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _801n | o n n u l l   d s t , 
        |                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    T241* |  #adbesfli_nneu lalbasbll_en oennndu)l ln o_eNxocnenputl l{

            | |                      ^                               ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2furthest_edge_query.cc :note: 16:
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2furthest_edge_query.h:29  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u82l:
lIn file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   frieIn file included from ns2/s2latlng.ccd: 18v:
oIn file included from i../src/s2/s2latlng.hd: 31A:
bIn file included from s../src/s2/r2.hl:F22o:
rIn file included from m../src/s2/util/math/vector.ha:t36F:
lIn file included from u../src/s2/base/logging.hs:h21(:
FIn file included from o/usr/local/clang/include/absl/log/check.hr:m37a:
tIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hi:n21k:
*In file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b41s:
lIn file included from _/usr/local/clang/include/absl/log/internal/strip.hn:o26n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hl:l53 :
s/usr/local/clang/include/absl/types/source_location.hi:n150k:,40
:       | warning:                                           ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h  :150241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2furthest_edge_query.ccd:e16f:
iIn file included from n../src/s2/s2furthest_edge_query.he: 29a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormIn file included from as2/s2latlng.cct:S18i:
nIn file included from k../src/s2/s2latlng.h(:s31t:
rIn file included from _../src/s2/r2.hf:o22r:
mIn file included from a../src/s2/util/math/vector.ht:_36i:
nIn file included from t../src/s2/base/logging.he:r21n:
aIn file included from l/usr/local/clang/include/absl/log/check.h:::37F:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hm:a21t:
SIn file included from i/usr/local/clang/include/absl/log/internal/check_op.hn:k41I:
mIn file included from p/usr/local/clang/include/absl/log/internal/strip.hl:*26 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_message.hs:l53_:
n/usr/local/clang/include/absl/types/source_location.ho:n165n:u15l:l  warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |                                                              ^165
 |  /usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innoen naublsll _fniolnen_unlalm e__N o=n n"u"l;l

            | |               ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2furthest_edge_query.ccl:_16n:
oIn file included from n../src/s2/s2furthest_edge_query.hn:u29l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECIn file included from Ks2/s2lax_loop_shape.cc_:O18P:
_In file included from S../src/s2/s2lax_loop_shape.hT:R41I:
NIn file included from G../src/s2/s2loop.h_:E34X:
TIn file included from E../src/s2/mutable_s2shape_index.hR:N30(:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/internal/check_op.h::69449:
:In file included from 31/usr/local/clang/include/absl/container/internal/container_memory.h:: 29:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/hash/hash.h
:89:
In file included from   /usr/local/clang/include/absl/hash/internal/hash.h449: | 79 :
 In file included from e/usr/local/clang/include/absl/base/internal/endian.hx:t26e:
rn/usr/local/clang/include/absl/base/internal/unaligned_access.h :t39e:m45p:l awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 con   s39t |  icnhlairn*e  aubisnlt_1n6o_ntn uUlnla lMiagkneeCdhLeocakdO1p6S(tcroinnsgt(  v o i\d
*       | a                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
p)   241{ | 
#      d| e                                            ^f
ine /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnIn file included from us2/s2latlng.ccl:l18 :
_In file included from N../src/s2/s2latlng.ho:n31n:
uIn file included from l../src/s2/r2.hl:
22      :
| In file included from                      ^../src/s2/util/math/vector.h
:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2lax_loop_shape.ccl:l18 :
_In file included from N../src/s2/s2lax_loop_shape.ho:n41n:
uIn file included from l../src/s2/s2loop.hl:
34      :
| In file included from                      ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.hs2/s2latlng.cc::6918:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/container_memory.h../src/s2/s2latlng.h::2931:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/r2.h::8922:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h../src/s2/util/math/vector.h::7936:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/base/logging.h::2621:
:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h/usr/local/clang/include/absl/log/check.h::4537::
45In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:464:26:    45 | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
li/usr/local/clang/include/absl/base/nullability.hn:e241 :u22i:n tnote: 3expanded from macro 'absl_nonnull'2
_t   241U | n#adleifginneed Laobasdl3_2n(ocnonnusltl  v_oNiodn*n ualbls
l      _| n                     ^o
nnullIn file included from  s2/s2latlng.ccp:)18 :
{In file included from 
../src/s2/s2latlng.h      :| 31                                            ^:

In file included from ../src/s2/r2.h:/usr/local/clang/include/absl/base/nullability.h22::
241In file included from :../src/s2/util/math/vector.h22::36 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :a463b:s1l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l463  | _ANBoSnLn_uLlOlG
_      I| N                     ^T
ERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* In file included from as2/s2lax_loop_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_loop_shape.ho:n41n:
uIn file included from l../src/s2/s2loop.hl:)34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                        ^:
30:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h241::6622:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.h:note: 69expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:  29241:
 | In file included from #/usr/local/clang/include/absl/hash/hash.hd:e89f:
iIn file included from n/usr/local/clang/include/absl/hash/internal/hash.he: 79a:
bIn file included from s/usr/local/clang/include/absl/base/internal/endian.hl:_26n:
o/usr/local/clang/include/absl/base/internal/unaligned_access.hn:n51u:l45l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu   l51l | 
i      n| l                     ^i
ne uint64_t UnalignedLoad64(constIn file included from  s2/s2latlng.ccv:o18i:
dIn file included from *../src/s2/s2latlng.h :a31b:
sIn file included from l../src/s2/r2.h_:n22o:
nIn file included from n../src/s2/util/math/vector.hu:l36l:
 In file included from p../src/s2/base/logging.h): 21{:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                            ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 465:note: 1expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f465i | nAeB SaLb_sLlO_Gn_oInNnTuElRlN A_LN_oDnEnFuIlNlE
_      M| A                     ^K
E_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   externIn file included from  s2/s2lax_loop_shape.cct:e18m:
pIn file included from l../src/s2/s2lax_loop_shape.ha:t41e:
 In file included from c../src/s2/s2loop.ho:n34s:
tIn file included from  ../src/s2/mutable_s2shape_index.hc:h30a:
rIn file included from */usr/local/clang/include/absl/container/btree_map.h :a66b:
sIn file included from l/usr/local/clang/include/absl/container/internal/btree.h_:n69o:
nIn file included from n/usr/local/clang/include/absl/container/internal/container_memory.hu:l29l:
 In file included from M/usr/local/clang/include/absl/hash/hash.ha:k89e:
CIn file included from h/usr/local/clang/include/absl/hash/internal/hash.he:c79k:
OIn file included from p/usr/local/clang/include/absl/base/internal/endian.hS:t26r:
i/usr/local/clang/include/absl/base/internal/unaligned_access.hn:g57(: 36 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                               ^
   /usr/local/clang/include/absl/base/nullability.h57: | 241i:n22l:i nnote: eexpanded from macro 'absl_nonnull' 
vo  i241d |  #Udneafliingen eadbSstlo_rneo1n6n(uvloli d_*N oanbnsull_ln
o      n| n                     ^u
ll pIn file included from ,s2/s2latlng.cc :u18i:
nIn file included from t../src/s2/s2latlng.h1:631_:
tIn file included from  ../src/s2/r2.hv:)22 :
{In file included from 
../src/s2/util/math/vector.h      :| 36                                   ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 465#:d66e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s465l | _AnBoSnLn_uLlOlG __INNoTnEnRuNlAlL
_      D| E                     ^F
INE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^In file included from 
s2/s2lax_loop_shape.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2lax_loop_shape.h::2241::
 In file included from ../src/s2/s2loop.hnote: :expanded from macro 'absl_nonnull'34
:
In file included from ../src/s2/mutable_s2shape_index.h  :24130 | :
#In file included from d/usr/local/clang/include/absl/container/btree_map.he:f66i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :a69b:
sIn file included from l/usr/local/clang/include/absl/container/internal/container_memory.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/hash/hash.hu:l89l:
 In file included from _/usr/local/clang/include/absl/hash/internal/hash.hN:o79n:
nIn file included from u/usr/local/clang/include/absl/base/internal/endian.hl:l26
:
      | /usr/local/clang/include/absl/base/internal/unaligned_access.h                     ^:
61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2latlng.cc:18   :
61In file included from  | ../src/s2/s2latlng.hi:n31l:
iIn file included from n../src/s2/r2.he: 22v:
oIn file included from i../src/s2/util/math/vector.hd: 36U:
nIn file included from a../src/s2/base/logging.hl:i21g:
nIn file included from e/usr/local/clang/include/absl/log/check.hd:S37t:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.he:3212:
(/usr/local/clang/include/absl/log/internal/check_op.hv:o465i:d66*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'p
,   u241i | n#td3e2f_itn ev )a b{s
l      _| n                                   ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine In file included from as2/s2latlng.ccb:s18l:
_In file included from n../src/s2/s2latlng.ho:n31n:
uIn file included from l../src/s2/r2.hl: 22_:
NIn file included from o../src/s2/util/math/vector.hn:n36u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OPIn file included from _s2/s2lax_loop_shape.ccS:T18R:
IIn file included from N../src/s2/s2lax_loop_shape.hG:_41E:
XIn file included from T../src/s2/s2loop.hE:R34N:
(In file included from c../src/s2/mutable_s2shape_index.ho:In file included from n30ss2/s2furthest_edge_query.cc:
t: In file included from 16v/usr/local/clang/include/absl/container/btree_map.h:
o:In file included from i66../src/s2/s2furthest_edge_query.hd:
:*In file included from 29 /usr/local/clang/include/absl/container/internal/btree.h:
a:In file included from b69../src/s2/s1angle.hs:
:lIn file included from 28_/usr/local/clang/include/absl/container/internal/container_memory.h:
n:In file included from o29n../src/s2/s2point.h:
n:In file included from u27/usr/local/clang/include/absl/hash/hash.hl:
:lIn file included from 89)../src/s2/s2coder.h:
;:In file included from 
23/usr/local/clang/include/absl/hash/internal/hash.h      :
:| In file included from 79^/usr/local/clang/include/absl/status/status.h:

:In file included from 67/usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/log/internal/check_op.h:
::In file included from 26450/usr/local/clang/include/absl/status/internal/status_internal.h:
::25/usr/local/clang/include/absl/base/internal/unaligned_access.h29:::
 65In file included from :note: /usr/local/clang/include/absl/strings/cord.h36expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'::
86 :
  warning: 450/usr/local/clang/include/absl/strings/cord_analysis.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | :
 32 : 47    :65   |  warning: ixtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n,
l ixn,e    c 32ov | nossiitdz  ecU_hntaa rlG*ie gtanEbessdtlSi_tmnoaortneen6du4Ml(elvm)oo
ir      dy| *U                        ^ s
aab/usr/local/clang/include/absl/base/nullability.hgs:el241(_:cn22oo:nn snnote: tuexpanded from macro 'absl_nonnull' l
Clo  r 241pd | ,R# edupei*fn itan6be4s _lat_b nsvol)n_ nn{uo
ln      ln|  u                                   ^rl
elp /usr/local/clang/include/absl/base/nullability.h)_:;N241
o:      n22n| :u                                              ^l l
note: 
expanded from macro 'absl_nonnull'      
| /usr/local/clang/include/absl/base/nullability.h                     ^:  
241241: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fnionnen ualbls l__nNoonnnnuullll 
_      N| o                     ^n
null
      In file included from | s2/s2latlng.cc                     ^:
18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: In file included from warning: s2/s2furthest_edge_query.cc:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]16
:
In file included from ../src/s2/s2furthest_edge_query.h:29  :
502In file included from  | ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hL:O27G:
_In file included from I../src/s2/s2coder.hN:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.hA:L67_:
CIn file included from H/usr/local/clang/include/absl/status/internal/status_internal.hE:C29K:
_In file included from O/usr/local/clang/include/absl/strings/cord.hP:_86I:
M/usr/local/clang/include/absl/strings/cord_analysis.hP:L50(:C49h:e cwarning: ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
EQ,    =50= | )s
i      z| e^_
t /usr/local/clang/include/absl/log/internal/check_op.hG:e488t:M32o:r enote: Pexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'r
eci  s488e | M e mionrlyiUnsea gceo(ncsotnesxtp rC ocrodnRsetp *c haabrs*l _anbosnln_unlull lraebpl)e; 
n      a| m                                                ^e
##/usr/local/clang/include/absl/base/nullability.hI:m241p:l22(:   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s\l
_      n| o                               ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :_23N:o nnote: nexpanded from macro 'absl_nullable'u
ll  
257       | | #                     ^d
efine absl_nullableIn file included from  s2/s2furthest_edge_query.cc_:N16u:
lIn file included from l../src/s2/s2furthest_edge_query.ha:b29l:
eIn file included from 
../src/s2/s1angle.h      :| 28                      ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from s2/s2latlng.cc/usr/local/clang/include/absl/strings/cord.h::1886:
:
In file included from ../src/s2/s2latlng.h/usr/local/clang/include/absl/strings/cord_analysis.h::3156:
:In file included from 56../src/s2/r2.h:: 22:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/util/math/vector.h
:36:
In file included from ../src/s2/base/logging.h   :5621 | :
sIn file included from i/usr/local/clang/include/absl/log/check.hz:e37_:
tIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hG:e21t:
E/usr/local/clang/include/absl/log/internal/check_op.hs:t502i:m1a:t ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
ai/usr/local/clang/include/absl/log/internal/check_op.hr:S489h:a47r:e Mnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'm
ory  U489s | a g e ( c o ncsotn sCto rTd1R&e pv*1 ,a bcsoln_snto nTn2u&l lv 2r,e pc)o;n
s      t|                                                         ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld eefxipnret eaxbts)l _{n o n n u l\l
       _| N                                              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NulIn file included from ls2/s2edge_crossings.cca:b18l:
eIn file included from 
../src/s2/s2edge_crossings.h      :| 40                      ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2latlng.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2latlng.h:
:In file included from 31/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/r2.h:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/util/math/vector.h:
:36:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/base/logging.h489::2114:
:In file included from  /usr/local/clang/include/absl/log/check.h:warning: 37type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:  503489: | 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 v/usr/local/clang/include/absl/log/internal/check_op.ho:i489d: 47(:* anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
l_n  u489l | l a b l e   icnovnasrti aTn1t&) (vv1o,i dc*o nasbts lT_2n&u lvl2a,b iclointsyt_ ucnhkanro*w na)b,s
l      _| n             ^o
nnul/usr/local/clang/include/absl/base/nullability.hl: 257e:x23p:r tnote: eexpanded from macro 'absl_nullable'x
t)   {257  |  # d e f\i
n      e|                                                ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   _241N | u#ldleafbilnee
       a| b                      ^s
l_nonnuIn file included from ls2/s2edge_crossings.ccl: 18_:
NIn file included from o../src/s2/s2edge_crossings.hn:n40u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
In file included from s2/s2latlng.cc/usr/local/clang/include/absl/status/status.h::In file included from 1867:
s2/s2lax_loop_shape.cc:
In file included from :In file included from ../src/s2/s2latlng.h18/usr/local/clang/include/absl/status/internal/status_internal.h::
:31In file included from 29:
../src/s2/s2lax_loop_shape.h:
In file included from :In file included from ../src/s2/r2.h41/usr/local/clang/include/absl/strings/cord.h::
:22In file included from 94:
../src/s2/s2loop.h:
In file included from :In file included from ../src/s2/util/math/vector.h34/usr/local/clang/include/absl/strings/internal/cordz_info.h::
:36In file included from 31:
../src/s2/mutable_s2shape_index.h:
In file included from :../src/s2/base/logging.h30:/usr/local/clang/include/absl/synchronization/mutex.h:
21:In file included from :
489/usr/local/clang/include/absl/container/btree_map.hIn file included from ::/usr/local/clang/include/absl/log/check.h4566:::
37 In file included from :
/usr/local/clang/include/absl/container/internal/btree.hwarning: In file included from :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h69
::
21In file included from :
/usr/local/clang/include/absl/container/internal/container_memory.h:/usr/local/clang/include/absl/log/internal/check_op.h29::
503  In file included from :489/usr/local/clang/include/absl/hash/hash.h1 | : : 89  :
warning:  In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] /usr/local/clang/include/absl/hash/internal/hash.h
 :v79o/usr/local/clang/include/absl/log/internal/check_op.h:
i:/usr/local/clang/include/absl/base/internal/endian.hd497 ::(25032*::a36 b:note: s expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nu  l497l   | a250 b |  ilinnelli innieen  vuciaornintasn1tt)6(ev_oxitdp*  rLa ocbasodln_1nsu6ltl( acbciolhintasryt* _ vauonbkinsodwln*)_, 
nau      bls| lla_                                            ^bnl
oen nnua/usr/local/clang/include/absl/base/nullability.hlml:e #289p#):I 34m{p:
l       (note: |  expanded from macro 'absl_nullability_unknown'                                   ^ 

    /usr/local/clang/include/absl/base/nullability.h 289:  | 241# : d22 e: f  note: i expanded from macro 'absl_nonnull'n 
e     241 a |  #b d se\lf
_i      nn| e                               ^u 
lalb/usr/local/clang/include/absl/base/nullability.has:bl257i_:nl23oi:nt nnote: yuexpanded from macro 'absl_nullable'_l
lu   _n257Nk | on#ondnweufnli ln_
eN       u| al                     ^bl
s_lu_nnsuplelcable i_fNiueldl
a      b| l                                 ^e

      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36In file included from :
In file included from s2/s2edge_crossings.ccIn file included from s2/s2lax_loop_shape.cc:../src/s2/base/logging.h:18:18:
21:
In file included from :
In file included from ../src/s2/s2edge_crossings.hIn file included from ../src/s2/s2lax_loop_shape.h:/usr/local/clang/include/absl/log/check.h:40:41:
37:
In file included from :
In file included from ../src/s2/s1angle.hIn file included from ../src/s2/s2loop.h:/usr/local/clang/include/absl/log/internal/check_impl.h:28:34:
21:
In file included from :
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/mutable_s2shape_index.h:::2750330:
::
In file included from 1In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/container/btree_map.h: :23warning: 66:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
In file included from 
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/internal/check_op.h:::6769498:
:
:In file included from In file included from 35/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/container_memory.h::: 29note: 29expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
:

In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/hash/hash.h:  :9449889:
 | :
 In file included from In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/hash/internal/hash.h :: 3179 :
:
 /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/internal/endian.hi::n490254t:: 1327v::1  ,warning: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i

nt     v4902542 |  |  , i  nc l o invnsoet i vdco*hi adar *bS stalobr_senl1u_6ln(lovanobniiuldli*l t aeybx_spulnr_ktnnoeowxnnt n)ua lr{lg  ) p; , 
        u i|  n            ^ t 
1 6 /usr/local/clang/include/absl/base/nullability.h_ :t 289  :v 34)  : {\ 

note:       expanded from macro 'absl_nullability_unknown'      | 
|                           ^                                  ^  

289 | /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h#::d241241e::f22i22n::e   note: note: aexpanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'b

s  l  241_241 | n | #u#dldeelffiaibnneiel  aiabtbsysll___unnnkonononnwnnuul ll_l N u__NlNloo_nnnunnuulslplle

c            i| f|                      ^i                     ^e
d

      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94In file included from :
s2/s2lax_loop_shape.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h18::
31In file included from :
../src/s2/s2lax_loop_shape.h/usr/local/clang/include/absl/synchronization/mutex.h::41499:
:In file included from 35../src/s2/s2loop.h:: 34warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h499: | 66 :
 In file included from v/usr/local/clang/include/absl/container/internal/btree.ho:i69d:
 In file included from E/usr/local/clang/include/absl/container/internal/container_memory.hn:a29b:
lIn file included from e/usr/local/clang/include/absl/hash/hash.hD:e89b:
uIn file included from g/usr/local/clang/include/absl/hash/internal/hash.hL:o79g:
(/usr/local/clang/include/absl/base/internal/endian.hc:o258n:s36t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r*   a258b | siln_lniunlel aubilnet 3n2a_mte )L;o
a      d| 3                                  ^2
(c/usr/local/clang/include/absl/base/nullability.ho:n257s:t23 :v onote: iexpanded from macro 'absl_nullable'd
*   a257b | s#ld_enfoinnneu lalb spl)_ n{u
l      l| a                                   ^b
le/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        241|  |                       ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40In file included from :
s2/s2lax_loop_shape.ccIn file included from :../src/s2/s1angle.h18::
28In file included from :
../src/s2/s2lax_loop_shape.hIn file included from :../src/s2/s2point.h41::
27In file included from :
../src/s2/s2loop.hIn file included from :../src/s2/s2coder.h34::
23In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/status/status.h30::
67In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h66::
29In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/strings/cord.h69::
94In file included from :
/usr/local/clang/include/absl/container/internal/container_memory.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h29::
31In file included from :
/usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/synchronization/mutex.h::89549:
:In file included from 40/usr/local/clang/include/absl/hash/internal/hash.h:: 79warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/internal/endian.h
:262:27:   549warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 st  a262t | iicn lvionied  vIonicdr eSmteonrteS3y2n(cvhoSiedm*( Maubtselx_*n oanbnsull_ln opn,n uuliln tm3u2,_
t       | v                                       ^)
 {/usr/local/clang/include/absl/base/nullability.h
:      241| :                          ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, consatb sclh_anro*n naublsll __nNoonnnnuullll 
e      x| p                     ^r
text) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2edge_crossings.cc22::18 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2edge_crossings.h
:40  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 565s2/s2latlng.cc | : 18 :
vIn file included from o../src/s2/s2latlng.hi:d31 :
UIn file included from n../src/s2/r2.hl:o22c:
kIn file included from S../src/s2/util/math/vector.hl:o36w:
(In file included from S../src/s2/base/logging.hy:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullableIn file included from  s2/s2latlng.ccW:a18k:
eIn file included from u../src/s2/s2latlng.hp:(31
:
      In file included from | ../src/s2/r2.h                                 ^:
22:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/util/math/vector.h257::3623:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/check.h  :25737 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
ne/usr/local/clang/include/absl/log/internal/check_op.h :a506b:s1l:_ nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
lable   506_ | NAuBlSlLa_bLlOeG
_      I| N                      ^T
ERNAL_CIn file included from Hs2/s2edge_crossings.ccE:C18K:
_In file included from O../src/s2/s2edge_crossings.hP:_40I:
MIn file included from P../src/s2/s1angle.hL:(28C:
hIn file included from e../src/s2/s2point.hc:k27_:
GIn file included from E../src/s2/s2coder.h,: 23>:
=In file included from )/usr/local/clang/include/absl/status/status.h
:      67| :
^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/cord.h488::9432:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'31
:
/usr/local/clang/include/absl/synchronization/mutex.h:581  :48838 | :   warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
lin  e581  | c o n s t e xbpars ec_oinnstte rcnhaalr:*: PaebrsTlh_renaudlSlyanbclhe*  naabmsel#_#nIomnpnlu(l l   w ) ; 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: \expanded from macro 'absl_nonnull'

      |                                  ^241
 | #d/usr/local/clang/include/absl/base/nullability.he:f257i:n23e:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli n_eN oanbnsull_ln
u      l| l                     ^a
ble _Nullable
      |                       ^
In file included from s2/s2latlng.cc:In file included from 18s2/s2edge_crossings.cc:
:In file included from 18../src/s2/s2latlng.h:
:In file included from 31../src/s2/s2edge_crossings.h:
:In file included from 40../src/s2/r2.h:
:In file included from 22../src/s2/s1angle.h:
:In file included from 28../src/s2/util/math/vector.h:
:In file included from 36../src/s2/s2point.h:
:In file included from 27../src/s2/base/logging.h:
:In file included from 21../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/log/internal/check_op.h29::
506In file included from :/usr/local/clang/include/absl/strings/cord.h1::94 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::489585::4720::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    489585 |  |      v o i dc oTnrsatn sT(1M&u Hvo1w,  acbosnls_tn oTn2n&u lvl2 ,h ocwo)n;s t  /c/h aurs*e da bfsolr_ nCoonnnduVlalr -e>xMpurtteexx tt)r a{n s f e r 
\      
|                          ^| 
                                              ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2latlng.cc::24118::
22In file included from :../src/s2/s2latlng.h :note: 31expanded from macro 'absl_nonnull':

In file included from ../src/s2/r2.h  :24122 | :
#In file included from d../src/s2/util/math/vector.he:f36i:
nIn file included from e../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 /usr/local/clang/include/absl/log/internal/check_op.h_:N506o:n1n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      | /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlineIn file included from  s2/s2edge_crossings.ccc:o18n:
sIn file included from t../src/s2/s2edge_crossings.he:x40p:
rIn file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :c27h:
ar*In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94 :
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
aIn file included from /usr/local/clang/include/absl/synchronization/mutex.hb:s2/s2lax_loop_shape.ccs590:l:18_40:
n:In file included from u ../src/s2/s2lax_loop_shape.hlwarning: :ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]41a
:
bIn file included from l../src/s2/s2loop.he: 34n  :
a590In file included from m | ../src/s2/mutable_s2shape_index.h e:# 30#e:
IxIn file included from mp/usr/local/clang/include/absl/container/btree_map.hpl:il66c(:
i In file included from t /usr/local/clang/include/absl/container/internal/btree.h  : M69 u:
 tIn file included from  e/usr/local/clang/include/absl/container/internal/container_memory.h x: (29 c:
 oIn file included from  n/usr/local/clang/include/absl/hash/hash.h s: t89  :
v In file included from  o/usr/local/clang/include/absl/hash/internal/hash.h l: a89\t:

iIn file included from       l/usr/local/clang/include/absl/numeric/int128.h| e                               ^: 
41M:
ut/usr/local/clang/include/absl/types/compare.he/usr/local/clang/include/absl/base/nullability.h:x:78*257: :22a23:b:s  lwarning: _note: 'enable_if' is a clang extension [-Wgcc-compat]expanded from macro 'absl_nullable'n

ulla     b25778l |  | # ed  e/ f* ii ng en_ _oaabrtsetldr*_i/nb)uul tl{ea_}b
_l(      e( | e_n                                       ^Nau
blllea_b/usr/local/clang/include/absl/base/nullability.hilf:e(
257n      : | 23=                      ^:=
  0note: ,expanded from macro 'absl_nullable' 
"On  l257y |  #ldIn file included from ies2/s2latlng.cctf:ei18rn:
ea In file included from la../src/s2/s2latlng.h b:`s310l:
_`In file included from n u../src/s2/r2.hil:lsa22 b:
alIn file included from le../src/s2/util/math/vector.hl :o_36wN:
ueIn file included from ld../src/s2/base/logging.hl.:"a21)b:
l)eIn file included from )
/usr/local/clang/include/absl/log/check.h       :{| 37}                      ^:


In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutIn file included from es2/s2latlng.ccx:L18o:
cIn file included from k../src/s2/s2latlng.h(:M31u:
tIn file included from e../src/s2/r2.hx:&22 :
mIn file included from u../src/s2/util/math/vector.h :A36B:
SIn file included from L../src/s2/base/logging.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/check.h:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:A21T:
TR/usr/local/clang/include/absl/log/internal/check_op.hI:B507U:T1E:_ Cwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]P
TURED  _507B | YA(BtShLi_sL)O)G
_      I| N                                                                         ^~~~T
ERNAL_CHECK_OP_IMPL(Check_GT,/usr/local/clang/include/absl/synchronization/mutex.h :>678):
35      :|  ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:488:32  :678  | note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
expl  i488c | i t  iRnelaidneer McuotnesxtLeoxcpkr( Mcuotnesxt*  cahbasrl*_ naobnsnlu_lnlu lmlua)b lAeB SnLa_mSeH#A#RIEmDp_lL(O C K _ F U N C T I O N ( m u ) 
        |                                    ^\

      | /usr/local/clang/include/absl/base/nullability.h                               ^:
241:22:/usr/local/clang/include/absl/base/nullability.h :note: 257expanded from macro 'absl_nonnull':
23:   241note:  | expanded from macro 'absl_nullable'#
de  f257i | n#ed eafbisnle_ naobnsnlu_380ln warninglus l generated_l.
Naobnlneu l_lN
u      l| l                     ^a
ble
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2edge_crossings.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2edge_crossings.h21::
40/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 507../src/s2/s1angle.h::128::
 In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h489::2347:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
489In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t681 :T741:&  warning: v'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]1
, con  s681t |   T 2e&x pvl2i,c icto nRseta dcehraMru*t eaxbLsolc_kn(oMnuntuelxl&  emxup rAtBeSxLt_)I N{T E R N A L\_
A      T| T                                              ^R
IB/usr/local/clang/include/absl/base/nullability.hU:T241E:_22C:A Pnote: Texpanded from macro 'absl_nonnull'U
RE  D241_ | B#Yd(etfhiinse) ,a
b      s| l                                                                         ^~~~_
nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2latlng.cc22::18 :
In file included from note: ../src/s2/s2latlng.hexpanded from macro 'absl_nonnull':
31:
  In file included from 241../src/s2/r2.h | :#22d:
eIn file included from f../src/s2/util/math/vector.hi:n36e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n507n:u1In file included from l:s2/s2lax_polygon_shape.ccl :
warning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      :

| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2lax_polygon_shape.h
::49730::
32In file included from :../src/s2/base/logging.h :note: 21expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 497/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hl:i41n:
eIn file included from  /usr/local/clang/include/absl/log/internal/strip.hc:o26n:
sIn file included from t/usr/local/clang/include/absl/log/internal/log_message.he:x53p:
r /usr/local/clang/include/absl/types/source_location.hc:o113n:s19t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r* a  b113s | l _ n u l l acbolnes tn acmhea#r#*I mapbls(l _ n o n n u l l   f i l e _ n a m e  \=
       _| _                               ^b
ui/usr/local/clang/include/absl/base/nullability.hl:t257i:n23_:F Inote: Lexpanded from macro 'absl_nullable'E
()  )257  | {#
d      e| f                  ^i
ne /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _NIn file included from os2/s2latlng.ccn:n18u:
lIn file included from l../src/s2/s2latlng.h
:      31| :
                     ^In file included from 
../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       inIn file included from ts2/s2lax_polygon_shape.cc :v181:
,In file included from  ../src/s2/s2lax_polygon_shape.hi:n30t:
 In file included from v../src/s2/base/logging.h2:,21 :
cIn file included from o/usr/local/clang/include/absl/log/check.hn:s37t:
 In file included from c/usr/local/clang/include/absl/log/internal/check_impl.hh:a21r:
*In file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b41s:
lIn file included from _/usr/local/clang/include/absl/log/internal/strip.hn:o26n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hl:l53 :
e/usr/local/clang/include/absl/types/source_location.hx:p133r:t25e:x twarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{      133  |      c o n s t e x p r  \c
o      n| s                                  ^t
 c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a note: expanded from macro 'absl_nonnull'
  241 | #define basbls_ln_onnonnunlull lf i_lNeo_nnnaumlel(
)       | c                     ^o
nst noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:In file included from 18s2/s2lax_polygon_shape.cc:
:In file included from 18../src/s2/s2latlng.h:
:In file included from 31../src/s2/s2lax_polygon_shape.h:
:In file included from 30../src/s2/r2.h:
:In file included from 22../src/s2/base/logging.h:
:In file included from 21../src/s2/util/math/vector.h:
:In file included from 36/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/base/logging.h:
:In file included from In file included from 21s2/s2edge_crossings.cc/usr/local/clang/include/absl/log/internal/check_impl.h:
::In file included from 1821/usr/local/clang/include/absl/log/check.h:
:
:In file included from In file included from 37../src/s2/s2edge_crossings.h/usr/local/clang/include/absl/log/internal/check_op.h:
::In file included from 4041/usr/local/clang/include/absl/log/internal/check_impl.h:
:
:In file included from In file included from 21../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/strip.h:
::28/usr/local/clang/include/absl/log/internal/check_op.h26:
::
In file included from 511/usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2point.h:::138227:::
 26In file included from :warning: ../src/s2/s2coder.h type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from   /usr/local/clang/include/absl/status/status.h511   : | 82c67 | o:
 nIn file included from  sLt/usr/local/clang/include/absl/status/internal/status_internal.ho :gc29Mh:
eaIn file included from sr/usr/local/clang/include/absl/strings/cord.h*s: a94agb:
eIn file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31n:
st/usr/local/clang/include/absl/synchronization/mutex.h :c710h:a74r:*  warning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
sl_non  n710u | l l  efxipllei,c iitn stW rlli_itnneeur,lMl
au      tb| e                         ^lx
Le/usr/local/clang/include/absl/base/nullability.ho :Cch241ke:(c22kM:su tnote: texpanded from macro 'absl_nonnull're
cxm  &p241 t | mr#udu eeAfBIiSnmLe_p IlaNb(T
sEl      R_N| n            ^AoL
n_nAu/usr/local/clang/include/absl/base/nullability.hTl:TlR257 I_:BNU23oT:nEn _uCnote: lexpanded from macro 'absl_nullable'Al
P
T        U| R257                     ^E | 
#Dd_eBfYi(nteh iabsl_sn)u)l
l      a| b                                                                         ^~~~l
e _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 718/usr/local/clang/include/absl/log/internal/check_impl.h::3521::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]512
:17:   warning: 718type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
  e  x512p | l i c i tc oWnrsitt ecrhMaurt*e xaLbosclk_(nMuullablteeIn file included from  xs2/s2lax_polygon_shape.cc*s: 118a,:
b In file included from sc../src/s2/s2lax_polygon_shape.hlo:_n30ns:
otIn file included from n ../src/s2/base/logging.hnc:hu21la:
lrIn file included from  */usr/local/clang/include/absl/log/check.h m:ua37)b:

sIn file included from       l/usr/local/clang/include/absl/log/internal/check_impl.h_| :n                                  ^21u
:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.ha::b41241l:
:eIn file included from 22 /usr/local/clang/include/absl/log/internal/strip.h:s: 262:
note: ,/usr/local/clang/include/absl/log/internal/log_message.hexpanded from macro 'absl_nonnull'
:
      119  | :241                ^41 | 
:# /usr/local/clang/include/absl/base/nullability.hd:warning: e257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f:
i23n:e    119anote:  | expanded from macro 'absl_nullable'b s
 lL_  ong257oM | nen#susdlaleg ef_&Ni onTneonS uilanlbks
Al      l_| nsu                     ^ol
(laabbslle: :_LNouglSlianbkl*e 
a      b| s                      ^l
_nonIn file included from ns2/s2edge_crossings.ccu:l18l:
 In file included from In file included from ss2/s2latlng.cc../src/s2/s2edge_crossings.hi::n1840k:
:
)In file included from In file included from ;../src/s2/s2latlng.h../src/s2/s1angle.h
::      3128| :
:
                                        ^In file included from In file included from 
../src/s2/r2.h../src/s2/s2point.h::/usr/local/clang/include/absl/base/nullability.h2227::
:
241In file included from In file included from :../src/s2/util/math/vector.h../src/s2/s2coder.h22:::3623 :
:
note: In file included from In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.h
::  2167241:
:
 | In file included from In file included from #/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/internal/status_internal.hd::e3729f:
:
iIn file included from In file included from n/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/cord.he:: 2194a:
:
b/usr/local/clang/include/absl/log/internal/check_op.hIn file included from s:/usr/local/clang/include/absl/strings/internal/cordz_info.hl512:_:31n47:
o:/usr/local/clang/include/absl/synchronization/mutex.hn :nwarning: 722type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u:
l74l:  _  warning: N512'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o | 
n n u l  l 722
c |       o |  n                     ^es
xtp lcihcairt*  Warbistle_rIn file included from nMs2/s2lax_polygon_shape.ccuu:tlel18xa:
LbIn file included from ol../src/s2/s2lax_polygon_shape.hec:k 30s(:
M1In file included from u,../src/s2/base/logging.ht :ce21xo:
&nIn file included from  s/usr/local/clang/include/absl/log/check.hmt: u37 c:
hAIn file included from Ba/usr/local/clang/include/absl/log/internal/check_impl.hSr:L*21 _:
aIIn file included from Nb/usr/local/clang/include/absl/log/internal/check_op.hTs:lE41_Rn:
NuIn file included from Al/usr/local/clang/include/absl/log/internal/strip.hLl:_a26Ab:
lTeT /usr/local/clang/include/absl/log/internal/log_message.hRs:I2121,B:
U41T      :E|                                                ^_warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
A
P/usr/local/clang/include/absl/base/nullability.hT:U  257R121:E | 23D :_ B LYnote: oexpanded from macro 'absl_nullable'(g
tMhe  iss257s) | a#,gd
ee      &f|                                                                           ^~~~iT
onSei nakbOsnll_yn(ualblsalb:l:eL o_gNSuilnlka*b la/usr/local/clang/include/absl/synchronization/mutex.heb:s
731l      :_| 35n                      ^:o
 nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llIn file included from    ss2/s2latlng.cc731i: | n 18k :
)e;In file included from x
p../src/s2/s2latlng.h      l:| i                                        ^31c
:
iIn file included from /usr/local/clang/include/absl/base/nullability.ht../src/s2/r2.h: :241W22:r:
22iIn file included from :t../src/s2/util/math/vector.h e:note: rexpanded from macro 'absl_nonnull'36M
u:
t  eIn file included from 241x../src/s2/base/logging.h | L:#o21dc:
ekfIn file included from (i/usr/local/clang/include/absl/log/check.hMnu:et37 ea:
xbIn file included from *s /usr/local/clang/include/absl/log/internal/check_impl.hla_:bns21ol:
n_n/usr/local/clang/include/absl/log/internal/check_op.hnuo:lnl513n :u_l17Nlo: nm nuwarning: u,ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] lc

o      n  | s                     ^513t
  | C o n d ictoinosnt&  cchoanrd*) 
a      b| s                                  ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  enote: xexpanded from macro 'absl_nonnull'p
rt  e241x | t#)d;e
f      i| n                ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: expanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_In file included from ns2/s2lax_polygon_shape.cco:n18n:
uIn file included from l../src/s2/s2lax_polygon_shape.hl: 30_:
NIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h
:      37| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158In file included from  | s2/s2latlng.cc : 18L:
oIn file included from g../src/s2/s2latlng.hM:e31s:
sIn file included from a../src/s2/r2.hg:e22&:
 In file included from o../src/s2/util/math/vector.hp:e36r:
aIn file included from t../src/s2/base/logging.ho:r21<:
<In file included from (/usr/local/clang/include/absl/log/check.hv:o37i:
dIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_514n:u13l:l awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
e    v514) |  c{o
n      s| t                               ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r257*: 23a:b snote: lexpanded from macro 'absl_nullable'_
nu  l257l | a#bdleef iCnhee cakbsstlr_cnmuplflaalbsleeI m_pNlu(l
l      a| b            ^l
e
/usr/local/clang/include/absl/base/nullability.h      :| 257                      ^:
23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2lax_polygon_shape.ccn:u18l:
lIn file included from a../src/s2/s2lax_polygon_shape.hb:l30e:
 In file included from _../src/s2/base/logging.hN:u21l:
lIn file included from a/usr/local/clang/include/absl/log/check.hb:l37e:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                      ^21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.hs2/s2latlng.cc::2618:
:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :../src/s2/s2latlng.h161::3138:
:In file included from  ../src/s2/r2.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
:
In file included from ../src/s2/util/math/vector.h:  36161:
 | In file included from  ../src/s2/base/logging.h :L21o:
gIn file included from M/usr/local/clang/include/absl/log/check.he:s37s:
aIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.he:&21 :
o/usr/local/clang/include/absl/log/internal/check_op.hp:e515r:a17t:o rwarning: <type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]<
(co  n515s | t   v o icdo*n satb sclh_anru*l laabbslle_ n uvl)l a{b
l      e|                                       ^s
1,/usr/local/clang/include/absl/base/nullability.h :c257o:n23s:t  note: cexpanded from macro 'absl_nullable'h
ar  *257  | a#bdself_innuel laabbslle_ nsu2l,l
a      b| l                ^e
 _/usr/local/clang/include/absl/base/nullability.hN:u257l:l23a:b lnote: eexpanded from macro 'absl_nullable'

      |                         ^257
 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const In file included from cs2/s2lax_polygon_shape.cch:a18r:
*In file included from  ../src/s2/s2lax_polygon_shape.ha:b30s:
lIn file included from _../src/s2/base/logging.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/log/check.hb:l37e:
 In file included from s/usr/local/clang/include/absl/log/internal/check_impl.h2:,21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                                              ^:
41:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h257::2623:
:/usr/local/clang/include/absl/log/internal/log_message.h :note: 179expanded from macro 'absl_nullable':
35:   257 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n179e |   a bLsolg_Mneuslslaagbel&e  o_pNeurlaltaobrl<e<
(      w| c                      ^h
ar_t*In file included from  s2/s2latlng.cca:b18s:
lIn file included from _../src/s2/s2latlng.hn:u31l:
lIn file included from a../src/s2/r2.hb:l22e:
 In file included from v../src/s2/util/math/vector.h):;36
:
      In file included from | ../src/s2/base/logging.h                                  ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::25737::
23In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :note: 21expanded from macro 'absl_nullable':

/usr/local/clang/include/absl/log/internal/check_op.h:  516257: | 17#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   516a | b s l _ ncuolnlsatb lceh a_rN*u lalbasbll_en
o      n| n                      ^u
ll exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2lax_polygon_shape.cc| :                     ^18
:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:In file included from 21s2/s2latlng.cc:
:In file included from 18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41../src/s2/s2latlng.h:
:In file included from 31/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26../src/s2/r2.h:
:/usr/local/clang/include/absl/log/internal/log_message.h22::
190In file included from :../src/s2/util/math/vector.h42::36 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :19037 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hL:o21g:
M/usr/local/clang/include/absl/log/internal/check_op.he:s517s:a13g:e &warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
per  a517t | ocro<n<s(ts tcdh:a:ro*s tarbesalm_&n u(l*laabbslle_ nCohnencuklslt rmc)a(ssetcdm:p:torsuterIemapml&( 
o      s| )            ^)
;
/usr/local/clang/include/absl/base/nullability.h      :| 257                                         ^:
23: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'241
:22  :257  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518In file included from  | s2/s2lax_polygon_shape.cc : 18 :
 In file included from c../src/s2/s2lax_polygon_shape.ho:n30s:
tIn file included from  ../src/s2/base/logging.hc:h21a:
rIn file included from */usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_op.ha:b41l:
eIn file included from  /usr/local/clang/include/absl/log/internal/strip.hs:126,:
 /usr/local/clang/include/absl/log/internal/log_message.hc:o191n:s43t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r* a  b191s | l _ nLuolglMaebslsea gse2&, 
o      p| e                ^r
at/usr/local/clang/include/absl/base/nullability.ho:r257<:<23(:s tnote: dexpanded from macro 'absl_nullable':
:i  o257s | _#bdaesfei&n e( *aabbssll__nnuolnlnaubllle  m_)N(usltlda:b:lieo
s      _| b                      ^a
se& os)In file included from )s2/s2latlng.cc;:
18      :
| In file included from                                           ^../src/s2/s2latlng.h
:31/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/r2.h::2222::
 In file included from note: ../src/s2/util/math/vector.hexpanded from macro 'absl_nonnull':
36:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n518o:n47n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
_No  n518n | u l l 
       c| o                     ^n
st char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2lax_polygon_shape.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2lax_polygon_shape.h::52130::
17In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:  37521:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from  :s2/s2edge_crossings.cc 21: :
18cIn file included from :
o/usr/local/clang/include/absl/log/internal/check_op.hIn file included from n:s../src/s2/s2edge_crossings.h41t::
 40In file included from c:
/usr/local/clang/include/absl/log/internal/strip.hhIn file included from :a../src/s2/s1angle.h26r::
*28/usr/local/clang/include/absl/log/internal/log_message.h :
:aIn file included from 306b../src/s2/s2point.h:s:3l27:_:
 nIn file included from warning: u../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
l23a:
  bIn file included from 306l/usr/local/clang/include/absl/status/status.h | e:  67 s:
a1In file included from b,/usr/local/clang/include/absl/status/internal/status_internal.hs lc:o_29nn:
osIn file included from nt/usr/local/clang/include/absl/strings/cord.hn :uc94lh:
laIn file included from  r/usr/local/clang/include/absl/strings/internal/cordz_info.hs*:t 31da:
:b/usr/local/clang/include/absl/synchronization/mutex.h:s:ul801n_:in20qu:ul elwarning: _atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]pb
tlre<   Ls801o2 | g M, e
Cso      sna| dgi                ^etD
iaot/usr/local/clang/include/absl/base/nullability.hna(:>b 257od:oal23t a:(_ *;anote: 
expanded from macro 'absl_nullable'b      
s| l    ^_257
n | o#/usr/local/clang/include/absl/base/nullability.hnd:ne241uf:li22ln: e f note: uaexpanded from macro 'absl_nonnull'nb
cs)  l(241v_ | o#niddue*lf ilanbaes bla_lbensu ll__lNnaoubnilnlluialbtlyl __euNn
okn      nno| uw                      ^lnl
)
,      
|                            ^| 
In file included from                    ^s2/s2latlng.cc
:18:
In file included from ../src/s2/s2latlng.h/usr/local/clang/include/absl/base/nullability.h::31241:
:In file included from 22../src/s2/r2.h:: 22note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/util/math/vector.h:36  :
241In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n521n:u47l:l  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
onn  u521l | l 
        |                       ^c
onst chIn file included from as2/s2edge_crossings.ccr:*18 :
aIn file included from b../src/s2/s2edge_crossings.hs:l40_:
nIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he: 27s:
1In file included from ,../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31a:
b/usr/local/clang/include/absl/synchronization/mutex.hl:e801 :s452:, 
      warning: | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]                                              ^

/usr/local/clang/include/absl/base/nullability.h  :801257 | : 23 :C onote: nexpanded from macro 'absl_nullable'd
it  i257o | n#(dbeofoiln e( *aabbssll__nnuolnlnaubllle  f_uNnucl)l(avbolied
*       | a                      ^b
sl_nullabIn file included from is2/s2latlng.ccl:i18t:
yIn file included from _../src/s2/s2latlng.hu:n31k:
nIn file included from o../src/s2/r2.hw:n22):
,In file included from 
../src/s2/util/math/vector.h      :| 36                                            ^:

In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21289:
:In file included from 34/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'absl_nullability_unknown'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
289/usr/local/clang/include/absl/log/internal/check_op.h | :#522d:e17f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab  s522l | _ n u l lcaobnislti tcyh_aurn*k naobwsnl __nNounlnlu_luln sepxepcritfeixetd)
;      
|                                        ^| 
                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2edge_crossings.cc :a18b:
sIn file included from l../src/s2/s2edge_crossings.h_:n40o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullIn file included from as2/s2furthest_edge_query.ccb:i16lity_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl:
_nulIn file included from l../src/s2/s2furthest_edge_query.ha:b29i:
lIn file included from i../src/s2/s1angle.ht:y28_:
uIn file included from n../src/s2/s2point.hk:n27o:
wIn file included from n../src/s2/s2coder.h):,23
:
      In file included from | /usr/local/clang/include/absl/status/status.h             ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
241 | /usr/local/clang/include/absl/synchronization/mutex.h#:d489e:f14i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_no  n489n | u l l   _ N ovnoniudl l(
*      a| b                     ^s
l_nullaIn file included from bs2/s2edge_crossings.ccl:e18 :
iIn file included from n../src/s2/s2edge_crossings.hv:a40r:
iIn file included from a../src/s2/s1angle.hn:t28):
(In file included from v../src/s2/s2point.ho:i27d:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:i29l:
iIn file included from t/usr/local/clang/include/absl/strings/cord.hy:_94u:
nIn file included from k/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31w:
n/usr/local/clang/include/absl/synchronization/mutex.h):,830
:      36| :             ^ 
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:  257830: | 23 :   note:  expanded from macro 'absl_nullable' 
 bo  o257l |  #(d*eafbisnle_ naobnsnlu_lnlu lfluanbcl)e( T_*N ualblsalb_lneu
l      l| a                      ^b
ility_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2furthest_edge_query.cc289::1634:
:In file included from  ../src/s2/s2furthest_edge_query.h:note: 29expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/s1angle.h:  28289:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:a29b:
iIn file included from l/usr/local/clang/include/absl/strings/cord.hi:t94y:
_In file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hn:k31n:
o/usr/local/clang/include/absl/synchronization/mutex.hw:n489 :_45N:u lwarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
uns  p489e | c i f i e d 
v      o| i                                 ^d
 (*absl_nullable invariant)(In file included from vs2/s2edge_crossings.cco:i18d:
*In file included from  ../src/s2/s2edge_crossings.ha:b40s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:i27l:
iIn file included from t../src/s2/s2coder.hy:_23u:
nIn file included from k/usr/local/clang/include/absl/status/status.hn:o67w:
nIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h,:
29      :
| In file included from /usr/local/clang/include/absl/strings/cord.h                                            ^:
94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::28931::
34:/usr/local/clang/include/absl/synchronization/mutex.h :831note: :expanded from macro 'absl_nullability_unknown'46
: warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]289
 | #d  e831f | i n e   a b stly_pneunlalmaeb ialbistly:_:utnykpneo_wind e_nNtuiltly_<uTn>s:p:etcyipfei*e da
b      s| l                                 ^_
nullability_unknown
      | In file included from                                              ^s2/s2furthest_edge_query.cc
:16:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2furthest_edge_query.h289::2934:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'absl_nullability_unknown':

In file included from /usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2max_distance_targets.cc -o s2/s2max_distance_targets.o
../src/s2/s2point.h  :28927 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94i:
lIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.ht:y31_:
u/usr/local/clang/include/absl/synchronization/mutex.hn:k490n:o13w:n  warning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
ull  _490u | n s p e c i fvioeidd
*       | a                                 ^b
sl_nullability_unknown arg);
      |             ^In file included from 
s2/s2edge_crossings.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289../src/s2/s2edge_crossings.h::3440::
 In file included from ../src/s2/s1angle.hnote: :expanded from macro 'absl_nullability_unknown'28
:
In file included from ../src/s2/s2point.h  :28927 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94i:
lIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.ht:y31_:
u/usr/local/clang/include/absl/synchronization/mutex.hn:k844n:o10w:n  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
ul  l844_ | u n s p e c iTf*i eadb
s      l| _                                 ^n
onnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2furthest_edge_query.cc :16note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2furthest_edge_query.h:29  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   voIn file included from is2/s2edge_crossings.ccd: 18E:
nIn file included from a../src/s2/s2edge_crossings.hb:l40e:
DIn file included from e../src/s2/s1angle.hb:u28g:
LIn file included from o../src/s2/s2point.hg:(27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
cIn file included from h/usr/local/clang/include/absl/status/status.ha:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31 :
n/usr/local/clang/include/absl/synchronization/mutex.ha:m845e:)45;:
       | warning:                                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  257845: | 23 :   note:  expanded from macro 'absl_nullable' 
 b  o257o | l# d(eafbisnle: :atbysple__niudlelnatbiltey <_TN>u:l:ltaybplee:
:      *|                        ^a
bsl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2furthest_edge_query.ccl:
16      :
| In file included from                      ^../src/s2/s2furthest_edge_query.h
:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2edge_crossings.cc:/usr/local/clang/include/absl/synchronization/mutex.h18::
549In file included from :../src/s2/s2edge_crossings.h40::40 :
In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h:  27549:
 | In file included from  ../src/s2/s2coder.h :s23t:
aIn file included from t/usr/local/clang/include/absl/status/status.hi:c67 :
vIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hi:d29 :
IIn file included from n/usr/local/clang/include/absl/strings/cord.hc:r94e:
mIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hn:t31S:
y/usr/local/clang/include/absl/synchronization/mutex.hn:c850h:S16e:m (warning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
te  x850* |   a b s l _ ncoonnnsutl lT *m ua,b
s      l| _                                       ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :o bnote: jexpanded from macro 'absl_nonnull'e
ct  ,241
 |       #| d               ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
In file included from       s2/s2furthest_edge_query.cc| :                     ^16
:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2edge_crossings.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2edge_crossings.h:
:In file included from 40/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2point.h:
:27/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 550../src/s2/s2coder.h::6423::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 550/usr/local/clang/include/absl/strings/cord.h | : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 851 : 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2edge_crossings.ccs2/s2lax_polygon_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2edge_crossings.h../src/s2/s2lax_polygon_shape.h::4030:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/base/logging.h::2821:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/check.h::2737:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/check_op.h::6741:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/strip.h::2926:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/log_message.h::94398:
:In file included from 11/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
855:34:   398 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  v  o855i | d *  eaxbpslli_cniutl lCaobnldei tcioonns(tc&o nvs)t; 
b      o| o          ^l
* a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257c | o#ndde)f;i
n      e|                                   ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   _241N | u#ldleafbilnee
       a| b                      ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_In file included from ns2/s2edge_crossings.ccu:l18l:
aIn file included from b../src/s2/s2edge_crossings.hl:e40 :
cIn file included from o../src/s2/s1angle.hn:s28t:
&In file included from  ../src/s2/s2point.hv:)27;:

In file included from       ../src/s2/s2coder.h| :                ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67257:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h::29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886/usr/local/clang/include/absl/base/nullability.h::31241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
  886   | 241  |  #edxepfliincei ta bCsoln_dniotninounl(lc o_nNsotn nTu*l la
b      s| l                     ^_
nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2furthest_edge_query.cc :16note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2furthest_edge_query.h:29  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :31| :
                     ^/usr/local/clang/include/absl/synchronization/mutex.h
:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnuIn file included from ls2/s2edge_crossings.ccl: 18w:
,In file included from 
../src/s2/s2edge_crossings.h      :| 40                                                               ^:

In file included from ../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u896l:l31 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l896
 |        |                       ^e
xplicit Condition(const T* absl_nIn file included from os2/s2furthest_edge_query.ccn:n16u:
lIn file included from l../src/s2/s2furthest_edge_query.h :o29b:
jIn file included from )../src/s2/s1angle.h
:      28| :
                              ^In file included from 
../src/s2/s2point.h:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e94f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l556_:n38o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _N  o556n | n u lvlo
i      d|                       ^L
ockSlowLoop(SynchWaitParams* absl_nonnull waitp, intIn file included from  s2/s2edge_crossings.ccf:l18a:
gIn file included from s../src/s2/s2edge_crossings.h):;40
:
      In file included from | ../src/s2/s1angle.h                                     ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n922n:u48l:l  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
onnu  l922l | 
        | s                     ^t
atic bool GuaranteedEquIn file included from as2/s2furthest_edge_query.ccl:(16c:
oIn file included from n../src/s2/s2furthest_edge_query.hs:t29 :
CIn file included from o../src/s2/s1angle.hn:d28i:
tIn file included from i../src/s2/s2point.ho:n27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
aIn file included from ,/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                               ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/synchronization/mutex.h::23558:: 35:note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #d  e558f | i n eb oaobls lL_oncuklSllaobwlWei t_hNDuelaldalbilnee
(      M| u                      ^H
ow absl_noIn file included from ns2/s2edge_crossings.ccn:u18l:
lIn file included from  ../src/s2/s2edge_crossings.hh:o40w:
,In file included from 
../src/s2/s1angle.h      :| 28                                  ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_923n:o48n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _No  n923n | u l l 
        |                       ^ 
            In file included from  s2/s2furthest_edge_query.cc : 16 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 29 :
 In file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :C27o:
nIn file included from d../src/s2/s2coder.hi:t23i:
oIn file included from n/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:a94b:
lIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :b31):
;/usr/local/clang/include/absl/synchronization/mutex.h
:      559| :                                               ^46
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257
:23:   note: 559expanded from macro 'absl_nullable' | 
     257  |  # d e f i n e   a b s l _ n u l l a b l e   _ Ncuolnlsatb lCeo
n      d| i                      ^t
ion* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abIn file included from ss2/s2edge_crossings.ccl:_18n:
uIn file included from l../src/s2/s2edge_crossings.hl:a40b:
lIn file included from e../src/s2/s1angle.h :_28N:
uIn file included from l../src/s2/s2point.hl:a27b:
lIn file included from e../src/s2/s2coder.h
:      23| :
                      ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2furthest_edge_query.cc948: | 16 :
 In file included from b../src/s2/s2furthest_edge_query.ho:o29l:
 In file included from (../src/s2/s1angle.h*:a28b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from  /usr/local/clang/include/absl/status/status.he:v67a:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.h):(29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94 :
CIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:d31i:
t/usr/local/clang/include/absl/synchronization/mutex.hi:o562n:*23 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n562u | l l )v o=i dn uLlolcpktSrl;o
w      (| M         ^u
Ho/usr/local/clang/include/absl/base/nullability.hw: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# dheofwi,n ec oanbsstl _Cnounldliatbiloen *_ Naublslla_bnluel
l      a| b                      ^l
e condIn file included from ,s2/s2edge_crossings.cc
:      18| :
                      ^In file included from 
../src/s2/s2edge_crossings.h:40/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.h_:N948o:n48n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from 
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const vo note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
latile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnullIn file included from In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | con c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absst unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTIn file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2latlng.ccu:l18l:

In file included from       ../src/s2/s2latlng.h| :                     ^31
:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndIIn file included from ns2/s2furthest_edge_query.cci:t16i:
aIn file included from l../src/s2/s2furthest_edge_query.hi:z29e:
(In file included from V../src/s2/s1angle.hL:o28g:
SIn file included from i../src/s2/s2point.ht:e27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29v:
)In file included from ;/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                    ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::886241::3122::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

    241886 |  | # d eefxipnlei caibts lC_onnodnintuiloln (_cNoonnsntu lTl*
       a| b                     ^s
l_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2latlng.ccb:s18l:
_In file included from n../src/s2/s2latlng.ho:n31n:
uIn file included from l../src/s2/r2.hl: 22_:
NIn file included from o../src/s2/util/math/vector.hn:n36u:
lIn file included from l../src/s2/base/logging.h
:      22| :
                     ^In file included from 
/usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2furthest_edge_query.ccexpanded from macro 'absl_nonnull':
16:
  In file included from 241../src/s2/s2furthest_edge_query.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2latlng.cce:f18i:
nIn file included from e../src/s2/s2latlng.h :a31b:
sIn file included from l../src/s2/r2.h_:n22o:
nIn file included from n../src/s2/util/math/vector.hu:l36l:
 In file included from _../src/s2/base/logging.hN:o22n:
In file included from /usr/local/clang/include/absl/log/log.h:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h
:      20| :
                     ^In file included from 
/usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegistIn file included from es2/s2furthest_edge_query.ccr:A16n:
dIn file included from I../src/s2/s2furthest_edge_query.hn:i29t:
iIn file included from a../src/s2/s1angle.hl:i28z:
eIn file included from (../src/s2/s2point.hV:L27o:
gIn file included from S../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
iIn file included from te*E a_bNsOlI_NnLoInNnEu;l
l       | v                              ^)
;
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2lax_polygon_shape.ccu:l18l:
 In file included from _../src/s2/s2lax_polygon_shape.hN:o30n:
nIn file included from u../src/s2/base/logging.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                     ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const :27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   boIn file included from os2/s2latlng.ccl: 18(:
*In file included from a../src/s2/s2latlng.hb:s31l:
_In file included from n../src/s2/r2.hu:l22l:
aIn file included from b../src/s2/util/math/vector.hl:e36 :
eIn file included from v../src/s2/base/logging.ha:l22_:
)In file included from (/usr/local/clang/include/absl/log/log.hc:o209n:
sIn file included from t/usr/local/clang/include/absl/log/internal/log_impl.h :C20o:
nIn file included from d/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:t63i:
on/usr/local/clang/include/absl/log/internal/vlog_config.h*: 133a:b37s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnull  )133  | =i nntu lRlepgtirs;t
e      r| A                                               ^n
In file included from d/usr/local/clang/include/absl/base/nullability.hs2/s2hausdorff_distance_query.ccI::n24116i::
t22In file included from i:../src/s2/s2hausdorff_distance_query.ha :l23inote: :
expanded from macro 'absl_nonnull'zIn file included from e
../src/s2/s1angle.h(:  V28L241:
o | In file included from g#../src/s2/s2point.hSd:ie25tf:
eiIn file included from *n../src/s2/util/coding/coder.h e:a 36ba:
sbIn file included from ls../src/s2/base/casts.hl_:_nn34oo:
nnnIn file included from nu/usr/local/clang/include/absl/log/log.hul:ll209l :
 _In file included from Nv/usr/local/clang/include/absl/log/internal/log_impl.ho)n:;n22
u:
l      In file included from l| 
/usr/local/clang/include/absl/log/internal/log_message.h                                    ^      :
| 53                     ^:
/usr/local/clang/include/absl/base/nullability.h
:/usr/local/clang/include/absl/types/source_location.h241::11322::19 : note: warning: expanded from macro 'absl_nonnull'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d113e | f i n eIn file included from    as2/s2furthest_edge_query.cc bc:sol16n_:
sntIn file included from o n../src/s2/s2furthest_edge_query.hcn:hu29al:
rl*In file included from   ../src/s2/s1angle.h_aN:bos28nln:
_uIn file included from nlo../src/s2/s2point.hln
:n      u27| l                     ^:
l
 In file included from f../src/s2/s2coder.hi:l23e:
_In file included from n/usr/local/clang/include/absl/status/status.ha:m67e:
 In file included from =/usr/local/clang/include/absl/status/internal/status_internal.h :_29_:
bIn file included from u/usr/local/clang/include/absl/strings/cord.hi:l94t:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.h_:F31I:
L/usr/local/clang/include/absl/synchronization/mutex.hE:(951):)9 :{ 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                  ^

  951/usr/local/clang/include/absl/base/nullability.h | : 241 :v22o:i dnote: *expanded from macro 'absl_nonnull' 
In file included from   as2/s2latlng.cc241b: | s18#l:
d_In file included from ne../src/s2/s2latlng.hfu:li31nl:
aeIn file included from  b../src/s2/r2.hal:eb 22as:
rlIn file included from _g../src/s2/util/math/vector.hn_:o 36=n:
n In file included from un../src/s2/base/logging.hull:llp22 t:
r_;In file included from 
N/usr/local/clang/include/absl/log/log.ho      :n| 209n        ^:
u
In file included from l/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/base/nullability.hl:
:20      257:
| :In file included from                      ^23/usr/local/clang/include/absl/log/absl_vlog_is_on.h
:: 63note: :
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/log/internal/vlog_config.h:  157257: | 11#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne   a157b | sVlL_onguSliltaebIn file included from *ls2/s2hausdorff_distance_query.cc e:a 16_bN:
suIn file included from ll../src/s2/s2hausdorff_distance_query.h_l:na23ub:
llIn file included from le../src/s2/s1angle.ha
:b      28l| :
e                      ^In file included from  
../src/s2/s2point.hS:e25t:
VIn file included from M../src/s2/util/coding/coder.ho:d36u:
lIn file included from e../src/s2/base/casts.hL:In file included from i34ss2/s2furthest_edge_query.cc:
t:In file included from H16/usr/local/clang/include/absl/log/log.he:
:aIn file included from 209d../src/s2/s2furthest_edge_query.h:
F:In file included from o29/usr/local/clang/include/absl/log/internal/log_impl.hr:
:TIn file included from 22e../src/s2/s1angle.h:
s:In file included from t28/usr/local/clang/include/absl/log/internal/log_message.hO:
:nIn file included from 53l../src/s2/s2point.h:
y:/usr/local/clang/include/absl/types/source_location.h(27:
:
133      In file included from :| ../src/s2/s2coder.h25          ^::
23 :
/usr/local/clang/include/absl/base/nullability.hwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:/usr/local/clang/include/absl/status/status.h
257::6723  :
:133In file included from   | /usr/local/clang/include/absl/status/internal/status_internal.hnote:  expanded from macro 'absl_nullable': 
c29o  n:
257sIn file included from  | t/usr/local/clang/include/absl/strings/cord.h#ed:xep94fri:
 ncIn file included from eo /usr/local/clang/include/absl/strings/internal/cordz_info.hnas:bts31 lc:
_h/usr/local/clang/include/absl/synchronization/mutex.hnau:rl*954l a:abb52ls:el  __nwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oun
lnlual  bll954 ef | 
i        l| es                      ^_t
naatmiec(In file included from  )s2/s2latlng.cc b:co18oo:
nlIn file included from  s../src/s2/s2latlng.hCta:l l31nV:
ooIn file included from ie../src/s2/r2.hdx:Pc22te:
prIn file included from tF../src/s2/util/math/vector.h u:{n36
c:
t      In file included from i| o../src/s2/base/logging.h                        ^n:(
22c:
o/usr/local/clang/include/absl/base/nullability.hIn file included from n:/usr/local/clang/include/absl/log/log.hs241:t: 209C22:
o:In file included from n dnote: i/usr/local/clang/include/absl/log/internal/log_impl.hexpanded from macro 'absl_nonnull't:
i20  o:
n241In file included from * | /usr/local/clang/include/absl/log/absl_vlog_is_on.h #:adb63es:
fl/usr/local/clang/include/absl/log/internal/vlog_config.hi_:nn158eo: n15an:ubl lswarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]cl)
;_
  n      158o|  |                                                    ^n n
 u l /usr/local/clang/include/absl/base/nullability.hlV L:_oN241go:Sni22ntu:el* la
b      s| l                     ^_
nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2hausdorff_distance_query.cc23::16 :
In file included from note: ../src/s2/s2hausdorff_distance_query.hexpanded from macro 'absl_nullable':
23:
In file included from   ../src/s2/s1angle.h257: | 28#:
dIn file included from e../src/s2/s2point.hf:i25n:
eIn file included from  ../src/s2/util/coding/coder.ha:b36s:
lIn file included from _../src/s2/base/casts.hn:u34l:
lIn file included from a/usr/local/clang/include/absl/log/log.hb:l209e:
 In file included from _/usr/local/clang/include/absl/log/internal/log_impl.hN:u22l:
lIn file included from a/usr/local/clang/include/absl/log/internal/log_message.hb:l53e:

/usr/local/clang/include/absl/types/source_location.h      :| 142                      ^:
25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2hausdorff_distance_query.ccl:_16n:
oIn file included from n../src/s2/s2hausdorff_distance_query.hn:u23l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l25l:

In file included from       ../src/s2/util/coding/coder.h| :                     ^36
:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2lax_polygon_shape.cc:18  :
119In file included from  | ../src/s2/s2lax_polygon_shape.h : 30L:
oIn file included from g../src/s2/base/logging.hM:e21s:
sIn file included from a/usr/local/clang/include/absl/log/check.hg:e37&:
 In file included from T/usr/local/clang/include/absl/log/internal/check_impl.ho:S21i:
n/usr/local/clang/include/absl/log/internal/check_op.hk:A453l:s1o:( awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l:/usr/local/clang/include/absl/log/internal/check_op.h::L450o:g25S:i nnote: kexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'*
 a  b450s | l _ n o n n uxl,l  xs,i ncko)n;s
t       | c                                        ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l#)d
e      f| i                        ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2lax_polygon_shape.cc
:18:
In file included from   ../src/s2/s2lax_polygon_shape.h121: | 30 :
 In file included from L../src/s2/base/logging.ho:g21M:
eIn file included from s/usr/local/clang/include/absl/log/check.hs:a37g:
eIn file included from &/usr/local/clang/include/absl/log/internal/check_impl.h :T21o:
S/usr/local/clang/include/absl/log/internal/check_op.hi:n454k:O1n:l ywarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  :454: | LAoBgSSLi_nLkO*G _aIbNsTlE_RnNoAnLn_uDlElF IsNiEn_kM)A;K
E      _| C                                        ^H
EC/usr/local/clang/include/absl/base/nullability.hK:_241O:P22_:S Tnote: Rexpanded from macro 'absl_nonnull'I
NG  _241E | X#TdEeRfNi(nfel oaabts)l;_
n      o| n^n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 449_:N31o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
l
        | 449                     ^ | 
  extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from In file included from s2/s2hausdorff_distance_query.cc../src/s2/base/logging.h::1621:
:
In file included from In file included from ../src/s2/s2hausdorff_distance_query.h/usr/local/clang/include/absl/log/check.h::2337:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_impl.h::2821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.h::45425::
1In file included from :../src/s2/util/coding/coder.h :36warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/casts.h:/usr/local/clang/include/absl/log/internal/check_op.h34::
450In file included from :/usr/local/clang/include/absl/log/log.h25::209 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
  /usr/local/clang/include/absl/log/internal/log_message.h450: | 158 : 32 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]x
, x  ,158  | c o nLsotg Mcehsasra*g ea&b solp_enroantnourl<l<)(
v      o| i                        ^d
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  # dve)f i{n
e       | a                               ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
_N  o257n | n#udlelf
i      n| e                     ^ 
absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2hausdorff_distance_query.cc/usr/local/clang/include/absl/log/internal/check_op.h::16455:
:In file included from 1../src/s2/s2hausdorff_distance_query.h:: 23:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from   ../src/s2/s2point.h455: | 25A:
BIn file included from S../src/s2/util/coding/coder.hL:_36L:
OIn file included from G../src/s2/base/casts.h_:I34N:
TIn file included from E/usr/local/clang/include/absl/log/log.hR:N209A:
LIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hD:E22F:
I/usr/local/clang/include/absl/log/internal/log_message.hN:E161_:M38A:K Ewarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C
HEC  K161_ | O P _LSoTgRMIeNsGs_aEgXeT&E RoNp(edroautbolre<)<;(
c      o| n^s
t /usr/local/clang/include/absl/log/internal/check_op.hv:o449i:d31*:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_n  u449l | l a belxet e rvn)  t{e
m      p| l                                     ^a
te/usr/local/clang/include/absl/base/nullability.h :c257o:n23s:t  note: cexpanded from macro 'absl_nullable'h
ar  *257  | a#bdself_innoen naublsll _MnauklelCahbelcek O_pNSutlrlianbgl(e 
        | \                      ^

      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_noIn file included from ns2/s2hausdorff_distance_query.ccn:u16l:
lIn file included from )../src/s2/s2hausdorff_distance_query.h
:      23| :
                        ^In file included from 
../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::25 :
In file included from ../src/s2/util/coding/coder.h:36:
In file included from note: ../src/s2/base/casts.hexpanded from macro 'absl_nonnull':
34:
  In file included from 241/usr/local/clang/include/absl/log/log.h | :#209d:
eIn file included from f/usr/local/clang/include/absl/log/internal/log_impl.hi:n22e:
 /usr/local/clang/include/absl/log/internal/log_message.ha:b179s:l35_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull   179_ | N o nLnouglMle
s      s| a                     ^g
e& operator<<(wchar_t* absIn file included from ls2/s2lax_polygon_shape.cc_:n18u:
lIn file included from l../src/s2/s2lax_polygon_shape.ha:b30l:
eIn file included from  ../src/s2/base/logging.hv:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                  ^37
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::25721::
23/usr/local/clang/include/absl/log/internal/check_op.h:: 456:note: 1expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #d  e456f | iAnBeS La_bLsOlG__nIuNlTlEaRbNlAeL __DNEuFlIlNaEb_lMeA
K      E| _                      ^C
HECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern In file included from note: s2/s2hausdorff_distance_query.ccexpanded from macro 'absl_nonnull':
16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from   ../src/s2/s1angle.h241: | 28#:
dIn file included from e../src/s2/s2point.hf:i25n:
eIn file included from  ../src/s2/util/coding/coder.ha:b36s:
lIn file included from _../src/s2/base/casts.hn:o34n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209 :
_In file included from N/usr/local/clang/include/absl/log/internal/log_impl.ho:n22n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l190
:      42| :                      ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*abIn file included from ss2/s2furthest_edge_query.ccl:_16n:
oIn file included from n../src/s2/s2furthest_edge_query.hn:u29l:
lIn file included from  ../src/s2/s1angle.hm:)28(:
sIn file included from t../src/s2/s2point.hd::27::
oIn file included from s../src/s2/s2coder.ht:r23e:
aIn file included from m/usr/local/clang/include/absl/status/status.h&: 67o:
sIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                                         ^:
94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22/usr/local/clang/include/absl/synchronization/mutex.h:: 956note: :expanded from macro 'absl_nonnull'52
:   warning: 241 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n956e |   a bsstla_tniocn nbuololl  _CNaosntnAunldlC
a      l| l                     ^F
unction(const Condition* absl_nonnull c);
      | In file included from                                                    ^s2/s2hausdorff_distance_query.cc
:16:
In file included from ../src/s2/s2hausdorff_distance_query.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2point.h
:25:
  In file included from 241../src/s2/util/coding/coder.h | :#36d:
eIn file included from f../src/s2/base/casts.hi:n34e:
 In file included from a/usr/local/clang/include/absl/log/log.hb:s209l:
_In file included from n/usr/local/clang/include/absl/log/internal/log_impl.ho:n22n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l191 :_43N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 191                     ^ | 
  LogMessage& operatorIn file included from <s2/s2furthest_edge_query.cc<:(16s:
tIn file included from d../src/s2/s2furthest_edge_query.h:::29i:
oIn file included from s../src/s2/s1angle.h_:b28a:
sIn file included from e../src/s2/s2point.h&: 27(:
*In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29m:
)In file included from (/usr/local/clang/include/absl/strings/cord.hs:t94d:
:In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.hi:o31s:
_/usr/local/clang/include/absl/synchronization/mutex.hb:a958s:e50&:  owarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
);
        | 958                                          ^ | 
  /usr/local/clang/include/absl/base/nullability.hs:t241a:t22i:c  note: bexpanded from macro 'absl_nonnull'o
o  l241  | C#adsetfAinndeC aalblsMle_tnhoondn(ucloln s_tN oCnonnudlilt
i      o| n                     ^*
 absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2hausdorff_distance_query.cco:n16n:
uIn file included from l../src/s2/s2hausdorff_distance_query.hl: 23_:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      25| :
                     ^In file included from 
../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2furthest_edge_query.cc
:16:
In file included from ../src/s2/s2furthest_edge_query.h  :30629 | :
 In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
sIn file included from t/usr/local/clang/include/absl/status/status.hd::67::
uIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hi:q29u:
eIn file included from _/usr/local/clang/include/absl/strings/cord.hp:t94r:
<In file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.ho:g31M:
e/usr/local/clang/include/absl/synchronization/mutex.hs:s979a:g43e:D awarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
> d  a979t | a _ ;s
t      a| t  ^i
c /usr/local/clang/include/absl/base/nullability.hb:o241o:l22 :A lnote: wexpanded from macro 'absl_nonnull'a
ys  T241r | u#ed(ecfoinnset  aCbosnld_intoinonnu*l la b_sNlo_nnnuulllla
b      l| e                     ^)
 { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from  template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const charIn file included from *s2/s2hausdorff_distance_query.cc :a16b:
sIn file included from l../src/s2/s2hausdorff_distance_query.h_:n23o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from M../src/s2/s2point.ha:k25e:
CIn file included from h../src/s2/util/coding/coder.he:c36k:
OIn file included from p../src/s2/base/casts.hS:t34r:
iIn file included from n/usr/local/clang/include/absl/log/log.hg:(209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h\:
22      :
|                               ^/usr/local/clang/include/absl/log/internal/log_message.h
:319/usr/local/clang/include/absl/base/nullability.h::20241:: 22warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
    241319 |  | # d e f icnoen satb swlc_hnaorn_ntu*l la b_sNlo_nnnuulllla
b      l| e                     ^ 
const& v);
      |                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2lax_polygon_shape.cc::25718::
23In file included from :../src/s2/s2lax_polygon_shape.h :note: 30expanded from macro 'absl_nullable':

In file included from ../src/s2/base/logging.h:  21257:
 | In file included from #/usr/local/clang/include/absl/log/check.hd:e37f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l458_:n1u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
l/usr/local/clang/include/absl/log/internal/check_op.he: 450_:N25u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
le  
450       | |                        ^ 
    x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2hausdorff_distance_query.cca:b16s:
lIn file included from _../src/s2/s2hausdorff_distance_query.hn:o23n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl:
36      :
| In file included from                      ^../src/s2/base/casts.h
:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inliIn file included from ns2/s2lax_polygon_shape.cce: 18L:
oIn file included from g../src/s2/s2lax_polygon_shape.hM:e30s:
sIn file included from a../src/s2/base/logging.hg:e21&:
 In file included from L/usr/local/clang/include/absl/log/check.ho:g37M:
eIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hs:a21g:
e/usr/local/clang/include/absl/log/internal/check_op.h:::459o:p1e:r awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r<<(  w459c | hAaBrS_Lt_*L OaGb_sIlN_TnEuRlNlAaLb_lDeE FvI)N E{_
M      A| K                                                   ^E
_CH/usr/local/clang/include/absl/base/nullability.hE:C257K:_23O:P _note: Sexpanded from macro 'absl_nullable'T
RI  N257G | _#EdXeTfEiRnNe( caobnsslt_ naublslla:b:lset r_iNnugl_lvaibelwe&
)      ;| 
                      ^      
| ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
In file included from   s2/s2hausdorff_distance_query.cc450: | 16 :
 In file included from  ../src/s2/s2hausdorff_distance_query.h : 23 :
xIn file included from ,../src/s2/s1angle.h :x28,:
 In file included from c../src/s2/s2point.ho:n25s:
tIn file included from  ../src/s2/util/coding/coder.hc:h36a:
rIn file included from *../src/s2/base/casts.h :a34b:
sIn file included from l/usr/local/clang/include/absl/log/log.h_:n209o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hu:l22l:
)/usr/local/clang/include/absl/log/internal/log_message.h
:      340| :                        ^46
: /usr/local/clang/include/absl/base/nullability.hwarning: :241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      | In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nIn file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
ull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const chIn file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.har* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cordIn file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERN_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2edge_crossings.ccs2/s2hausdorff_distance_query.cc::1816:
:
In file included from In file included from ../src/s2/s2edge_crossings.h../src/s2/s2hausdorff_distance_query.h::4023:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1angle.h::2828:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2725:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/coding/coder.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/casts.h::6736:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::114037::
49In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:189:28:  warning: 1140type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
       189  |  i n l i n e   c o n s t   a b s l : : S t a t u sC*o radbRselp_Enxotnenrunlall *A sIn file included from aSbs2/s2latlng.ccts:alt18_u:
nsIn file included from o(n../src/s2/s2latlng.hcno:un32ls:
ltIn file included from   ../src/s2/s1angle.hra:ebp28s)l:
;:
In file included from :      S../src/s2/s2point.h| t                                                ^:a
t27u:
/usr/local/clang/include/absl/base/nullability.hsIn file included from :&../src/s2/s2coder.h241 ::s2322):
: In file included from  {/usr/local/clang/include/absl/status/status.hnote: 
expanded from macro 'absl_nonnull':      
67| :
                             ^In file included from 241
/usr/local/clang/include/absl/status/internal/status_internal.h | :#/usr/local/clang/include/absl/base/nullability.hd29:e:
241fIn file included from :i/usr/local/clang/include/absl/strings/cord.h22n::e82  :
note: aIn file included from expanded from macro 'absl_nonnull'b/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
s:l  23_241:
n | In file included from o#n/usr/local/clang/include/absl/crc/crc32c.hdne:uf32liln:
 eIn file included from _ Na/usr/local/clang/include/absl/strings/str_format.hob:nsnl84u_:
lnIn file included from lo
n/usr/local/clang/include/absl/strings/internal/str_format/bind.h      n:| u29                     ^l:

l/usr/local/clang/include/absl/strings/internal/str_format/parser.h :_227N:o11n:n uwarning: l'enable_if' is a clang extension [-Wgcc-compat]l

      |                      ^
  In file included from 227s2/s2edge_crossings.cc | : 18 :
 In file included from  ../src/s2/s2edge_crossings.h : 40 :
 In file included from  ../src/s2/s1angle.h :e28n:
aIn file included from b../src/s2/s2point.hl:e27_:
iIn file included from f../src/s2/s2coder.h(:s23t:
rIn file included from _/usr/local/clang/include/absl/status/status.hf:o67r:
mIn file included from In file included from as2/s2hausdorff_distance_query.cc/usr/local/clang/include/absl/status/internal/status_internal.ht::_1629i:
:
n/usr/local/clang/include/absl/strings/cord.hIn file included from t:../src/s2/s2hausdorff_distance_query.he1146:r:23n10:
a:In file included from l ../src/s2/s1angle.h:warning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28E
:
nIn file included from s ../src/s2/s2point.hu1146:r | 25Ce:
oCIn file included from ro../src/s2/util/coding/coder.hdn:Rs36et:
epIn file included from *x../src/s2/base/casts.h p:ar36b(:
sfIn file included from lo../src/s2/base/logging.h_r:nm21oa:
ntIn file included from n)/usr/local/clang/include/absl/log/check.hu,:l
37l      :
 | In file included from N          ^/usr/local/clang/include/absl/log/internal/check_impl.he
:w21E:
x/usr/local/clang/include/absl/log/internal/check_op.ht:e193r:/usr/local/clang/include/absl/strings/internal/str_format/parser.hn21a::l229 R:warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]11p
(:a b  warning: s193l'enable_if' is a clang extension [-Wgcc-compat] | :c
:osnt  srti229 n | ag b_s vl i :e: wS tdaa ttua s,*
        a | b          ^es
ln_/usr/local/clang/include/absl/base/nullability.han:ob241nl:ne22u_:li lfnote:  (expanded from macro 'absl_nonnull'As
stS  rt241_a | t#fudsoe(frciomnneast t_a biasbnls_tlne:o:nrSntnualatllu s:_O:NVro<anTnl>u&il lds
)F       o| {                     ^r

m      at| I                    ^m
pl/usr/local/clang/include/absl/base/nullability.h<:C241.:.22.:> (note: fexpanded from macro 'absl_nonnull'o
rm  a241t | )#,d
e      f| i          ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2edge_crossings.ccs2/s2hausdorff_distance_query.cc::1816:
:
In file included from In file included from ../src/s2/s2edge_crossings.h../src/s2/s2hausdorff_distance_query.h::4023:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1angle.h::2828:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2725:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/coding/coder.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/casts.h::6736:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::115937::
17In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:202:46:  1159 | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
line   CodrAeLf_iCnHeE CaKb_sOlP__nIoMnPnLu(lClh e_cNko_nGnTu,l l>
)      
|                            ^| 
^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2furthest_edge_query.ccb:s16l:
_In file included from n../src/s2/s2furthest_edge_query.hu:l29l:
aIn file included from b../src/s2/s1angle.hl:e28 :
_In file included from N../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                      ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |  In file included from  s2/s2lax_polygon_shape.cc : 18e:
xIn file included from p../src/s2/s2lax_polygon_shape.hl:i30c:
iIn file included from t../src/s2/base/logging.h :C21h:
aIn file included from r/usr/local/clang/include/absl/log/check.hR:a37n:
gIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h(:c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t507 :C1o:r dwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l489_:n47o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l co  r489d | )   :   c o rcdo_n(scto rTd1)&  {v}1
,       | c                                   ^o
nst/usr/local/clang/include/absl/base/nullability.h :T2412:&22 :v 2note: ,expanded from macro 'absl_nonnull' 
con  s241t |  #cdheafri*n ea basbls_ln_onnonnunlull le x_pNrotnenxutl)l 
{       |                       ^ 
  \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2furthest_edge_query.ccu:l16l:
 In file included from _../src/s2/s2furthest_edge_query.hN:o29n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from In file included from s2/s2lax_loop_shape.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2lax_loop_shape.h/usr/local/clang/include/absl/status/status.h::4167:
:
In file included from In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/status/internal/status_internal.h::3429:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/mutable_s2shape_index.h::73630::
17In file included from :/usr/local/clang/include/absl/container/btree_map.h :warning: 66type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70  :
736In file included from  | /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from c/usr/local/clang/include/absl/strings/str_cat.ho:n116s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hC:o23r:
d*/usr/local/clang/include/absl/strings/numbers.h :a66b:s41l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null    66c | o r d _ ; 
        |                  ^ 
In file included from  /usr/local/clang/include/absl/base/nullability.hs2/s2lax_polygon_shape.cc :: 24118 ::
 22In file included from  :../src/s2/s2lax_polygon_shape.h   :30 note: :
expanded from macro 'absl_nonnull' In file included from  
../src/s2/base/logging.h :   21241 :
 |  In file included from # /usr/local/clang/include/absl/log/check.hd :e 37f :
i In file included from n /usr/local/clang/include/absl/log/internal/check_impl.hei: n21at:
b_/usr/local/clang/include/absl/log/internal/check_op.hst:ly507_p:ne1*o:n  nwarning: autype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lb
ls /usr/local/clang/include/absl/log/internal/check_op.hl_:_In file included from N497ons2/s2latlng.cc:no:n32n18n:u:
u lIn file included from lnote: l../src/s2/s2latlng.hlexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
: 
      32o| :
  u                     ^In file included from 497t
../src/s2/s1angle.h | ):; 28
 :
i      In file included from n| ../src/s2/s2point.h                                        ^l:
i27n:
eIn file included from  /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.hc:o:n24123s::
t22eIn file included from x:p/usr/local/clang/include/absl/status/status.h r:note:  67expanded from macro 'absl_nonnull'c:

oIn file included from n  /usr/local/clang/include/absl/status/internal/status_internal.hs241:t | 29 #:
dcIn file included from eh/usr/local/clang/include/absl/strings/cord.hfa:ir82*n e:
 aIn file included from a/usr/local/clang/include/absl/crc/internal/crc_cord_state.hbb:ss23ll:
__In file included from nn/usr/local/clang/include/absl/crc/crc32c.hou:nl32nl:
uaIn file included from In file included from lb/usr/local/clang/include/absl/strings/str_format.hs2/s2furthest_edge_query.ccll:: e8416_ :
:
Nn/usr/local/clang/include/absl/strings/internal/str_format/bind.hIn file included from oa:../src/s2/s2furthest_edge_query.hnm143:ne:29u#11:
l#:In file included from lI ../src/s2/s1angle.h
mwarning: :'enable_if' is a clang extension [-Wgcc-compat]      p28
| l:
(                     ^In file included from    
../src/s2/s2point.h143 :  | 27  :
  In file included from   ../src/s2/s2coder.h  :  23  :
  In file included from   /usr/local/clang/include/absl/status/status.h  :  67eIn file included from  :
ns2/s2lax_loop_shape.cca In file included from  :b/usr/local/clang/include/absl/status/internal/status_internal.h 18l: :
e29 In file included from _:
\../src/s2/s2lax_loop_shape.hi/usr/local/clang/include/absl/strings/cord.h
:f:      41(795| :
s:                               ^In file included from t43
../src/s2/s2loop.hr::/usr/local/clang/include/absl/base/nullability.h_ 34warning: :f:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257oIn file included from r
:../src/s2/mutable_s2shape_index.hm23:a  :30t795 :
note: _ | In file included from expanded from macro 'absl_nullable'i /usr/local/clang/include/absl/container/btree_map.h
n tf:  er66257ri:
 | neIn file included from #an/usr/local/clang/include/absl/container/internal/btree.hdld:e: 70f:v:
iEoIn file included from nni/usr/local/clang/include/absl/container/internal/layout.hesd: u 198arA:
bebIn file included from sCs/usr/local/clang/include/absl/strings/str_cat.hlol:_nF116nso:
utrIn file included from lem/usr/local/clang/include/absl/strings/internal/stringify_sink.hlxa:apt23brF:
l(l/usr/local/clang/include/absl/strings/numbers.hesu: )s77_,h:N (61u"a:lcb lwarning: osatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nlb:
slt:ee
   Cx      77op|  | rr                      ^[d 
[*tn roaadIn file included from bpis2/s2lax_polygon_shape.ccs"s):lc,18_a
:
nr      In file included from od| ../src/s2/s2lax_polygon_shape.h          ^n]:
n]30u :
lbIn file included from lo../src/s2/base/logging.h o:cl21o :
rSIn file included from id/usr/local/clang/include/absl/log/check.h,m:
p37      l:
| eIn file included from                                           ^A/usr/local/clang/include/absl/log/internal/check_impl.h
t:o21/usr/local/clang/include/absl/base/nullability.hf:
(:/usr/local/clang/include/absl/log/internal/check_op.ha241/usr/local/clang/include/absl/strings/internal/str_format/bind.h:b::507s22149:l::1: 22::note: : sexpanded from macro 'absl_nonnull' warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
'enable_if' is a clang extension [-Wgcc-compat]
r
  /usr/local/clang/include/absl/log/internal/check_op.hi241n:   | g498149#_: | dv35 ei: fe  iwnote:  n expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' es
  t_a  br_498s,a | l t _ f tnl roo ina bntiuu*ntl tela _ bv__s1(Nl,(o_ enninnonauntbln lluve
l2_      l,i|   f                     ^oc(
uosntt)sr;_t
f       co| rh                                                            ^ma
art/usr/local/clang/include/absl/base/nullability.h*_ :ai241bns:tl22e_:rn nonote: aexpanded from macro 'absl_nonnull'nl
n:u  :l241El | n #sdeuxerpferiCtnoeenx statb)es xl{p_r n( osn )n , u  
l        l|                        ^_ 
N o n n u l l\

            | |                      ^                                  ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defi/usr/local/clang/include/absl/strings/internal/str_format/bind.hn:e158 :a22b:s lwarning: In file included from _'enable_if' is a clang extension [-Wgcc-compat]s2/s2lax_loop_shape.ccn
:o18n:
  nIn file included from 158u../src/s2/s2lax_loop_shape.h | l: l41  :
 _In file included from  N../src/s2/s2loop.ho :n 34_n:
u_In file included from ../src/s2/mutable_s2shape_index.h:a20230td | R:
t e In file included from rpe*/usr/local/clang/include/absl/container/btree_map.hix p:balb66uisc:
tle__iIn file included from n_t/usr/local/clang/include/absl/container/internal/btree.ho( :n(C70neh:
uneIn file included from lac/usr/local/clang/include/absl/container/internal/layout.hlbk: lO198Nep:
e_MIn file included from wie/usr/local/clang/include/absl/strings/str_cat.hEfs:x(s116tVa:
eagIn file included from rle/usr/local/clang/include/absl/strings/internal/stringify_sink.hniB:adu23lFi:
Rol/usr/local/clang/include/absl/strings/numbers.herd:pme88(ar:
t(62      Ic:| mo                 ^warning: pn
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ls
<t/usr/local/clang/include/absl/base/nullability.hA    :rc88241gh | :sa[22.r[:.*n . onote: >adexpanded from macro 'absl_nonnull'(bi
sss)c,a  l r241_"d | n#b]odna]enfd  uibfolnoorlelm   eaStaxbi mpsrtplt_rlaenepAxot"t)n)no)d);u
(
al      l      b|                                               ^| s                     ^_
Nl
:o:ns/usr/local/clang/include/absl/base/nullability.hnt:ru241li:ln22
g:      _ v| note: i                     ^expanded from macro 'absl_nonnull'e

/usr/local/clang/include/absl/strings/internal/str_format/bind.hw:   162s241:t | 22r#:d,e  warning: fd'enable_if' is a clang extension [-Wgcc-compat]oi
unbel   e162a*b |  s al b_ sn ol _n nn_ou_nlantlutlr li_ boNuuottnen)u_l;l_
(
      (      | e                                                             ^| n                     ^
a
b/usr/local/clang/include/absl/base/nullability.hl:e241_:i22f:( Vnote: aexpanded from macro 'absl_nonnull'l
id  F241o | r#mdaetfIimnpel <aAbrsgls_.n.o.n>n(usl)l,  _"Nboandn uflolr
m      a| t                     ^ 
trap")))
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.hIn file included from :s2/s2lax_loop_shape.cc36::
18In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2lax_loop_shape.h36::
41In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2loop.h21::
34In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/mutable_s2shape_index.h37::
30In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h21::
66:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h209::7015:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116209:
 | In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h :c23o:
n/usr/local/clang/include/absl/strings/numbers.hs:t98 :c60h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl   _98n | o[n[nnuoldli sNceawrSdt]r]i In file included from nbs2/s2edge_crossings.ccgo:(o18)l:
 ;In file included from 
S../src/s2/s2edge_crossings.hi      :m| 40              ^p:

lIn file included from e/usr/local/clang/include/absl/base/nullability.hA../src/s2/s1angle.ht:o:241b28(::
a22In file included from b:../src/s2/s2point.hs :lnote: 27:expanded from macro 'absl_nonnull':
:
In file included from s../src/s2/s2coder.h  t:241r23i | n:
g#_In file included from vdi/usr/local/clang/include/absl/status/status.hee:wf 67is:
ntIn file included from er/usr/local/clang/include/absl/status/internal/status_internal.h ,: ab29obo:
ls*/usr/local/clang/include/absl/strings/cord.hl :_a1183nb:os47nl:n_ unwarning: lotype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]ln
 n_uN lo1183ln | n  uo l ul 
t       ) ;|                       ^
 
       |                                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b sClo_rndoRnenpu*l la b_sNlo_nnnuulllla
b      l| e                     ^ 
rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2lax_loop_shape.ccn:e18 :
aIn file included from b../src/s2/s2lax_loop_shape.hs:l41_:
nIn file included from u../src/s2/s2loop.hl:l34a:
bIn file included from l../src/s2/mutable_s2shape_index.he: 30_:
NIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66a:
bIn file included from l/usr/local/clang/include/absl/container/internal/btree.he:
70      :
| In file included from                       ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:In file included from 112s2/s2hausdorff_distance_query.cc::4416::
 In file included from warning: ../src/s2/s2hausdorff_distance_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from ../src/s2/s1angle.h  :11228 | :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 226i:n59t:_ twarning: ytype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
e* a  b226s | lv_oniodn nMualkle Cohuetc)k;O
p      V| a                                           ^l
ue/usr/local/clang/include/absl/base/nullability.hS:t241r:i22n:g (note: sexpanded from macro 'absl_nonnull'
t  d241: | :#odsetfrienaem &a bossl,_ ncoonnnsutl lv o_iNdo*n naublsll
_      n| u                     ^l
lable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from ds2/s2lax_loop_shape.cce:f18i:
nIn file included from e../src/s2/s2lax_loop_shape.h :a41b:
sIn file included from l../src/s2/s2loop.h_:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.ha:b30l:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:b70l:
eIn file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                      ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2lax_loop_shape.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2lax_loop_shape.h:
:41/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1222../src/s2/s2loop.h::5234::
 In file included from warning: ../src/s2/mutable_s2shape_index.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h: 661222:
 | In file included from i/usr/local/clang/include/absl/container/internal/btree.hn:l70i:
nIn file included from e/usr/local/clang/include/absl/container/internal/layout.hIn file included from  :s2/s2hausdorff_distance_query.ccv198:o:
16iIn file included from :
d/usr/local/clang/include/absl/strings/str_cat.hIn file included from  :../src/s2/s2hausdorff_distance_query.hC116:o:
23rIn file included from :
d/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from ::../src/s2/s1angle.h:23:I:
28n/usr/local/clang/include/absl/strings/numbers.h:
l:In file included from i118../src/s2/s2point.hn::e5625R::
e In file included from pwarning: ../src/s2/util/coding/coder.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
36S:
wIn file included from a  ../src/s2/base/casts.hp118:( | 36 C:
 oIn file included from  r../src/s2/base/logging.h d: :21 ::
 IIn file included from  n/usr/local/clang/include/absl/log/check.h l:i 37n :
e In file included from R /usr/local/clang/include/absl/log/internal/check_impl.he :p 21* :
  /usr/local/clang/include/absl/log/internal/check_op.ha :b 276sl_nonnu l   l   l 
        |                       ^ 
         absl::uiIn file included from nts2/s2furthest_edge_query.cc1:2168:
*In file included from  ../src/s2/s2furthest_edge_query.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
oIn file included from u../src/s2/s2coder.ht:)23;:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                                       ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:/usr/local/clang/include/absl/strings/cord.h22::898 :note: 27expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #de  f898i | n e  farbiseln_dn ocnonnusltl  C_oNrodnznIunlflo
      *|                       ^a
bsl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2lax_loop_shape.ccs2/s2furthest_edge_query.cc::1816:
:
In file included from In file included from ../src/s2/s2lax_loop_shape.h../src/s2/s2furthest_edge_query.h::4129:
:
In file included from In file included from ../src/s2/s2loop.h../src/s2/s1angle.h::3428:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2point.h::3027:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2coder.h::6623:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/status/status.h::7067:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/status/internal/status_internal.h::19829:
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/strings/cord.h::116927:
:In file included from 43/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/numbers.h
:156:55:   927warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       156  |  b o o l   s a f e _ s t r t o 8 _ b a s e ( a b s lC:o:rsdtRreipn*g _avbiselw_ ntuelxlta,b lien tr8e_pt)*; 
a      b| s                                          ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  vnote: aexpanded from macro 'absl_nullable'l
ue  ,257
 |       #| d                                                      ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee f_iNnuel laabbslle_
n      o| n                      ^n
ull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2lax_loop_shape.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2lax_loop_shape.h:
:/usr/local/clang/include/absl/strings/cord.h41::
929In file included from :../src/s2/s2loop.h26::34 :
In file included from warning: ../src/s2/mutable_s2shape_index.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :92966 | :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70:
vIn file included from o/usr/local/clang/include/absl/container/internal/layout.hi:d198 :
SIn file included from w/usr/local/clang/include/absl/strings/str_cat.ha:116p:
(In file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:l23i:
n/usr/local/clang/include/absl/strings/numbers.he:R158e:p57*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o158n | nbuololl  rshasf)e;_
s      t| r                         ^t
o1/usr/local/clang/include/absl/base/nullability.h6:_241b:a22s:e (note: aexpanded from macro 'absl_nonnull'b
sl  :241: | s#tdreifnign_ev iaebws lt_enxotn,n uilnlt 1_6N_otn*n ualbls
l      _| n                     ^o
nnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2furthest_edge_query.cc
:16  :
241In file included from  | ../src/s2/s2furthest_edge_query.h#:d29e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:nu:l13l:  _Nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
null
        276|  |                      ^c
onst void* absl_nullableIn file included from  s2/s2lax_loop_shape.cco:p18e:
rIn file included from a../src/s2/s2lax_loop_shape.ht:o41r:
<In file included from <../src/s2/s2loop.h(:s34t:
dIn file included from :../src/s2/mutable_s2shape_index.h::o30s:
tIn file included from r/usr/local/clang/include/absl/container/btree_map.he:a66m:
&In file included from ,/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
            ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h257::11623:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :expanded from macro 'absl_nullable'23
:
/usr/local/clang/include/absl/strings/numbers.h  :257160 | :#57d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e ab  s160l | _bnouolll asbalfee __sNturltloa3b2l_eb
a      s| e                      ^(
absl::string_view In file included from ts2/s2hausdorff_distance_query.cce:x16t:
,In file included from  ../src/s2/s2hausdorff_distance_query.hi:n23t:
3In file included from 2../src/s2/s1angle.h_:t28*:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 36v:
aIn file included from l../src/s2/base/logging.hu:e21,:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                                        ^37
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22/usr/local/clang/include/absl/log/internal/check_op.h:: 277note: :expanded from macro 'absl_nonnull'50
:   warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#de  f277i | n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
         const void* abIn file included from ss2/s2lax_loop_shape.ccl:_18n:
uIn file included from l../src/s2/s2lax_loop_shape.hl:a41b:
lIn file included from e../src/s2/s2loop.h :v34a:
lIn file included from u../src/s2/mutable_s2shape_index.he:)30;:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                                                 ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/base/nullability.h::70257:
:In file included from 23/usr/local/clang/include/absl/container/internal/layout.h:: 198note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116  :
257In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n162e: 57a:b swarning: lIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_s2/s2lax_polygon_shape.ccn
:u18l:
l  In file included from a162../src/s2/s2lax_polygon_shape.hb | :lb30eo:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |      co_noNsull lslaabfl ee
_r      sh| ts                      ^r)
t o{6
4      _| b                                                   ^a
se(a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::s tnote: rexpanded from macro 'absl_nonnull'i
In file included from ns2/s2hausdorff_distance_query.cc  g:241_16v:
 | iIn file included from #e../src/s2/s2hausdorff_distance_query.hdwe :fti23en:
xeIn file included from t ,../src/s2/s1angle.ha :bi28snl:
t_In file included from 6n../src/s2/s2point.h4o:_nt25n*:
u In file included from la../src/s2/util/coding/coder.hbl:s l36__N:
noIn file included from on../src/s2/base/casts.hnn:nuul36ll:
l In file included from 
v../src/s2/base/logging.h      a:| l21                     ^u:

eIn file included from ,/usr/local/clang/include/absl/log/check.h
:      37| :
                                                        ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/check_op.h241::27822::13 :note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  241 | #  d278e | fcionnes ta bvsoli_dn*o nanbuslll_ n_uNlolnanbullel 
o      p| e                     ^
rator<<(std::ostream&, std::nIn file included from us2/s2edge_crossings.ccl:l18pIn file included from :
ts2/s2lax_loop_shape.ccIn file included from r:../src/s2/s2edge_crossings.h_18t:)40:
;:
In file included from 
In file included from ../src/s2/s2lax_loop_shape.h      ../src/s2/s1angle.h:| :41            ^28:

:
In file included from In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h:::3425727:
::
In file included from 23In file included from ../src/s2/mutable_s2shape_index.h:../src/s2/s2coder.h: :30note: 23:
expanded from macro 'absl_nullable':
In file included from 
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/status/status.h  ::2576667 | :
:
#In file included from In file included from d/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/status/internal/status_internal.he::f7029i:
:
nIn file included from /usr/local/clang/include/absl/strings/cord.he/usr/local/clang/include/absl/container/internal/layout.h ::a1230198b::
s20In file included from l:/usr/local/clang/include/absl/strings/str_cat.h_ :nwarning: 116type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u:

lIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.ha :1230b23 | l:
ei/usr/local/clang/include/absl/strings/numbers.hn :l_165iNn:ue39l :lc aowarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nl
set
         c| 165h                      ^a | 
 r *   a b s l _ n u l l a b l e   C o r d : : Ianblsiln:e:Rienpt:1:2d8a*t aa(b)s lc_onnosntn u{l
l       | v                   ^a
lue/usr/local/clang/include/absl/base/nullability.h,: 257i:n23tIn file included from : s2/s2hausdorff_distance_query.cc b:note: a16expanded from macro 'absl_nullable's:

eIn file included from )  ../src/s2/s2hausdorff_distance_query.h;257:
 | 23      #:
| dIn file included from e                                      ^../src/s2/s1angle.hf
:i28/usr/local/clang/include/absl/base/nullability.hn:
:eIn file included from 241 ../src/s2/s2point.h:a:b22s25l:_:
 In file included from nnote: ../src/s2/util/coding/coder.huexpanded from macro 'absl_nonnull':l
36l  :
a241In file included from b | ../src/s2/base/casts.h#l:de36e :
_fIn file included from Ni../src/s2/base/logging.hunl:el21 a:
abIn file included from lb/usr/local/clang/include/absl/log/check.hes
:l      37_| :
n                      ^In file included from o
n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h :_292N:o13n:n ulwarning: l
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  292 | const char* absl_nonnuIn file included from lIn file included from s2/s2edge_crossings.ccls2/s2lax_loop_shape.cc: :o1818p:
e:
In file included from rIn file included from ../src/s2/s2edge_crossings.ha../src/s2/s2lax_loop_shape.ht::o4041r:
:
<In file included from In file included from <../src/s2/s1angle.h../src/s2/s2loop.h(::s2834t:
:
dIn file included from In file included from :../src/s2/s2point.h../src/s2/mutable_s2shape_index.h:::b2730a:
:
sIn file included from In file included from i../src/s2/s2coder.h/usr/local/clang/include/absl/container/btree_map.hc::_2366o:
:
In file included from sIn file included from /usr/local/clang/include/absl/status/status.ht/usr/local/clang/include/absl/container/internal/btree.h:r:67e70:
a:
In file included from mIn file included from /usr/local/clang/include/absl/status/internal/status_internal.h</usr/local/clang/include/absl/container/internal/layout.h:c:29h198a:
:
rIn file included from ,/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/str_cat.h ::T1234116r::
a20In file included from i:/usr/local/clang/include/absl/strings/internal/stringify_sink.ht :s23>warning: :
&type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/numbers.h,
:
166      : | 571234            ^: | 
 iwarning: n/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
i241n:e22   :c166o  | nnote: bsoexpanded from macro 'absl_nonnull'to
l    sc241ah | fa#edr_e*sfti rntaeob us8la_b_bsnalos_nenn(uaolbnslnl u:lC:olsr td_r:iNn:ogIn_nnvulileilwn 
et      eR| xe                     ^tp
,: :uaisn_tc8h_atr*s (In file included from a)s2/s2hausdorff_distance_query.ccb :sc16lo:
n_sIn file included from nt../src/s2/s2hausdorff_distance_query.ho :nIn file included from {s2/s2latlng.cc23n
::
u      18In file included from l| :
../src/s2/s1angle.hl                   ^In file included from : 
../src/s2/s2latlng.h28v::
/usr/local/clang/include/absl/base/nullability.ha32In file included from :l:
u../src/s2/s2point.h241In file included from e::../src/s2/s1angle.h,25
22::
      :28In file included from |  ../src/s2/util/coding/coder.h:
                                                        ^note: :In file included from 
expanded from macro 'absl_nonnull'36../src/s2/s2point.h
:
/usr/local/clang/include/absl/base/nullability.h:In file included from   :27../src/s2/base/casts.h241241:
: | :In file included from 36#22../src/s2/s2coder.h:
d::In file included from e 23../src/s2/base/logging.hfnote: iexpanded from macro 'absl_nonnull':
:n
eIn file included from 21   /usr/local/clang/include/absl/status/status.h:
241a:In file included from  | b67/usr/local/clang/include/absl/log/check.h#s:
:dlIn file included from 37e_/usr/local/clang/include/absl/status/internal/status_internal.h:
fn:In file included from io29/usr/local/clang/include/absl/log/internal/check_impl.hnne:
 :nIn file included from ua21/usr/local/clang/include/absl/strings/cord.hlb:
:ls /usr/local/clang/include/absl/log/internal/check_op.h82l_::
_N293In file included from no:/usr/local/clang/include/absl/crc/internal/crc_cord_state.hon49::nn23 nu:
warning: ulIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ll/usr/local/clang/include/absl/crc/crc32c.h
l
:       32  _| :
293N                     ^/usr/local/clang/include/absl/strings/str_format.h | o 
:n 115n : u52 l : l 
 warning:         type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]|  
                     ^ 
    115 |              c o nIn file included from  s s2/s2lax_loop_shape.cct :   In file included from 18s s2/s2edge_crossings.cc :
 t r:In file included from  _18../src/s2/s2lax_loop_shape.h f o:
: rIn file included from 41cm../src/s2/s2edge_crossings.h:
oa:In file included from nt40../src/s2/s2loop.hs_:
:tiIn file included from 34 nc../src/s2/s1angle.h:
th:In file included from ea28../src/s2/mutable_s2shape_index.hrr:
:n*In file included from 30a ../src/s2/s2point.h:
la:In file included from :b27/usr/local/clang/include/absl/container/btree_map.h:s:
:PlIn file included from 66a_23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull :
Cord:In file included from :/usr/local/clang/include/absl/container/internal/btree.hI:n70l:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.he:R198e:
pIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::a116s:
_In file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:e23e:
()/usr/local/clang/include/absl/strings/numbers.h
:      168| :                                     ^59
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22: note: expanded from macro 'absl_nonnull'
  168   | 241b | o#odle fsianfee _asbtsrlt_onuo1n6n_ublals e_(Naobnsnlu:l:ls
t      r| i                     ^n
g_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nroIn file included from s2/s2edge_crossings.ccnt:n18u:
lIn file included from l../src/s2/s2edge_crossings.h n:_ o40Ncn:
ohnIn file included from una../src/s2/s1angle.hlnlr:u)l*28 ;l:

a
In file included from       b      ../src/s2/s2point.h| s| :                     ^l                                                ^27
_
n:
oIn file included from n../src/s2/s2coder.hn:/usr/local/clang/include/absl/base/nullability.hu23:l:
241lIn file included from : /usr/local/clang/include/absl/status/status.he22:x:67p :
rIn file included from note: texpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.he
x:t29):
  ;241
/usr/local/clang/include/absl/strings/cord.h |       :#| 1245d                ^:e
38f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abIn file included from  /usr/local/clang/include/absl/base/nullability.hss2/s2lax_loop_shape.ccl1245::_ | n24118ion::
nln22In file included from iunl:../src/s2/s2lax_loop_shape.hel  : anote: 41_bNexpanded from macro 'absl_nonnull':
sol
In file included from n:../src/s2/s2loop.h:n:cu34l  o:
rl241In file included from d
_ | ../src/s2/mutable_s2shape_index.h      i#:d| enf30                     ^ti:
n
eIn file included from er /usr/local/clang/include/absl/container/btree_map.hna:ba66sll:
_:nIn file included from :o/usr/local/clang/include/absl/container/internal/btree.hCn:on70url:
dlIn file included from R /usr/local/clang/include/absl/container/internal/layout.he_:pN198*o:
 nIn file included from na/usr/local/clang/include/absl/strings/str_cat.hublIn file included from :sls2/s2hausdorff_distance_query.cc116l
::
_      16In file included from n| :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hu                     ^In file included from :l
../src/s2/s2hausdorff_distance_query.h23l::
a23/usr/local/clang/include/absl/strings/numbers.hb:
:lIn file included from 170e../src/s2/s1angle.h: :59C28o::
r dIn file included from warning: :../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
I25n:
lIn file included from i  ../src/s2/util/coding/coder.hn170:e | R36be:
opIn file included from o:../src/s2/base/casts.hl:: t36sr:
aeIn file included from fe../src/s2/base/logging.he(_:)In file included from s21t
rs2/s2lax_polygon_shape.cc:
      t:In file included from | o                                     ^18/usr/local/clang/include/absl/log/check.hu
3:
:2/usr/local/clang/include/absl/base/nullability.h_In file included from 37:b../src/s2/s2lax_polygon_shape.h:
257a:In file included from :s30/usr/local/clang/include/absl/log/internal/check_impl.h23e:
::(In file included from 21 a../src/s2/base/logging.h:
note: bexpanded from macro 'absl_nullable':/usr/local/clang/include/absl/log/internal/check_op.hs
l21::  :
295:257sIn file included from : | t#/usr/local/clang/include/absl/log/check.h20rdi::enf37 gi_:
warning: nvIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ei /usr/local/clang/include/absl/log/internal/check_impl.h
eaw:b s21  tle:
295_x | t/usr/local/clang/include/absl/log/internal/check_op.hncuoln,s:l aubitn514l es t_:i3N13g2u_:nlelt da*bwarning:   cahblstype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]aer
*l
       _| nao                        ^bnsn514
lu_ | lcnloon sntvn auclluhlae r,o*
 pa      eb| rs                                                          ^la_
tno/usr/local/clang/include/absl/base/nullability.hru:<l241<l:(a22sb:tl dnote: e: expanded from macro 'absl_nonnull'C:
bh  ae241cs | ki#csd_etorfcsmiptfranlIn file included from eea ss2/s2edge_crossings.ccma<e:Ibc18hmsp:
alrlIn file included from _,(../src/s2/s2edge_crossings.hn o
:Tn      40rna| :
            ^uilIn file included from l
t../src/s2/s1angle.hs :/usr/local/clang/include/absl/base/nullability.h>_28N:&:
,o257In file included from 
n:../src/s2/s2point.h      n23:| u                   ^:27l
l :

/usr/local/clang/include/absl/base/nullability.hnote: In file included from       :expanded from macro 'absl_nullable'../src/s2/s2coder.h| 241                     ^
::
2322  :
:257In file included from   | /usr/local/clang/include/absl/status/status.h#note: :dexpanded from macro 'absl_nonnull'e67
f:
i  nIn file included from 241e/usr/local/clang/include/absl/status/internal/status_internal.h  | :a#b29ds:
eIn file included from l/usr/local/clang/include/absl/strings/cord.h_fs2/s2lax_loop_shape.cc:niu:1258nl18:el:
36 aIn file included from b:a../src/s2/s2lax_loop_shape.hbl :sewarning: 41l type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
__
In file included from nN../src/s2/s2loop.ho nu:l1258lna34 | ub:
ilnlleIn file included from li 
../src/s2/mutable_s2shape_index.hn_e      :N o| 30                      ^cno:
r
nIn file included from du_/usr/local/clang/include/absl/container/btree_map.hli:ln66
t:
In file included from       eIn file included from rs2/s2lax_polygon_shape.cc| /usr/local/clang/include/absl/container/internal/btree.h                     ^n::
a1870l:
:
:In file included from In file included from :../src/s2/s2lax_polygon_shape.h:/usr/local/clang/include/absl/container/internal/layout.hC30:o:
198rIn file included from :
d../src/s2/base/logging.hIn file included from R:e/usr/local/clang/include/absl/strings/str_cat.hpIn file included from 21:Fs2/s2hausdorff_distance_query.cc:
116l:In file included from :
a16/usr/local/clang/include/absl/log/check.hIn file included from t:
:/usr/local/clang/include/absl/strings/internal/stringify_sink.h*In file included from  37:../src/s2/s2hausdorff_distance_query.ha:
23:bIn file included from :
23s/usr/local/clang/include/absl/log/internal/check_impl.hl/usr/local/clang/include/absl/strings/numbers.h_:
n::In file included from o21172../src/s2/s1angle.hn:
:/usr/local/clang/include/absl/log/internal/check_op.h:n59u:28:l515:
 l:In file included from warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]17../src/s2/s2point.h      
::|  25warning:                                    ^  :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
172In file included from 
 | ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.hb::  o36241515o:
: | l In file included from 22  ../src/s2/base/casts.h:s : a 36cnote: f:
eoexpanded from macro 'absl_nonnull'In file included from _n
s../src/s2/base/logging.hst  :t 241c21r:
t | hIn file included from o#ua/usr/local/clang/include/absl/log/check.h:d6er37*4 f:
_aibIn file included from sbln_/usr/local/clang/include/absl/log/internal/check_impl.hnauel:s el21aa(:
a/usr/local/clang/include/absl/log/internal/check_op.hbbb:slse296 lsl1:,: _63:cn:soon stnrwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tn nc
huagrl_  v*l296 i_  | aebNs wo nl tne_ uxltn ull, 
 l a      b lue|   si                     ^n t2
 6 ,4
 _       t|  *                  ^ a 
b s/usr/local/clang/include/absl/base/nullability.h l: _ n257 o: n 23n u: l l    note: vexpanded from macro 'absl_nullable' a l
 u   e ,257 
  |        #|                                                            ^d 
e f/usr/local/clang/include/absl/base/nullability.h i: n241e :c 22oa:nbs tsnote:  lexpanded from macro 'absl_nonnull's_
ing  un241le | dl# dacebhflairen* e _ Naabubssllll__annboonlnnneuul
In file included from lll      s2/s2edge_crossings.cc )_| :;N
                      ^18o      n
:
| nIn file included from                                                               ^u../src/s2/s2edge_crossings.h
l:l40/usr/local/clang/include/absl/base/nullability.h
:
:      In file included from In file included from 241| s2/s2lax_polygon_shape.cc../src/s2/s1angle.h:                     ^::22
1828::
:
 In file included from In file included from note: ../src/s2/s2lax_polygon_shape.h../src/s2/s2point.hexpanded from macro 'absl_nonnull'::
3027:
  :
In file included from 241In file included from ../src/s2/base/logging.h | ../src/s2/s2coder.h#::d21In file included from 23e:
s2/s2lax_loop_shape.cc:
fIn file included from :18:
In file included from ../src/s2/s2lax_loop_shape.hi/usr/local/clang/include/absl/log/check.h:n::
41e37In file included from :
 :
/usr/local/clang/include/absl/status/status.hIn file included from aIn file included from :../src/s2/s2loop.hb/usr/local/clang/include/absl/log/internal/check_impl.h67:s::
34l21In file included from :
_:
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_op.hIn file included from n:o:../src/s2/mutable_s2shape_index.h29n515::
n:30/usr/local/clang/include/absl/strings/cord.hu47:
:l:In file included from 961l /usr/local/clang/include/absl/container/btree_map.h: warning: :34_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]66:N
:
 oIn file included from warning: n  n/usr/local/clang/include/absl/container/internal/btree.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]515u:
 | l70l :
   
In file included from  961      /usr/local/clang/include/absl/container/internal/layout.h  | | :                     ^c o198n
s t:
  cIn file included from h /usr/local/clang/include/absl/strings/str_cat.hva:or116*i :
daIn file included from  b/usr/local/clang/include/absl/strings/internal/stringify_sink.hSs:le_23ntu:
lIn file included from T/usr/local/clang/include/absl/strings/numbers.hls2/s2hausdorff_distance_query.ccr:ea:b175le16:eO:
41 rsIn file included from 1:,E ../src/s2/s2hausdorff_distance_query.hc om:warning: nps23ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] tc:
h
ayIn file included from (r../src/s2/s1angle.h  C*:175o 28 | ra:
 d bIn file included from R es../src/s2/s2point.hl p:*_ 25   an:
 b uIn file included from s l../src/s2/util/coding/coder.hl _l: n a36u lb:
 l lIn file included from a be../src/s2/base/casts.h  l e  :rs 36 e 2:
,p In file included from 
, 
a../src/s2/base/logging.hb            :s| | 21l                                              ^                                 ^:
:

In file included from :/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.hu:/usr/local/clang/include/absl/base/nullability.h:i257:37n257:
t:In file included from 123/usr/local/clang/include/absl/log/internal/check_impl.h2: 8note: *expanded from macro 'absl_nullable' 
asb  es257ld | _F#ondorenfmnaiutnBlela  savbeas*l lu_ean,bus lilln_atbn lboaens neu_)lN;ul
l       lp| a                                        ^cb
l)e/usr/local/clang/include/absl/base/nullability.h

:            241| | :                                                   ^                      ^22

: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:  241241: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   a241b | s#ld_enfoIn file included from ins2/s2furthest_edge_query.ccnn:ue16l :
laIn file included from  b../src/s2/s2furthest_edge_query.h_s:lN29o_:
nnIn file included from on../src/s2/s1angle.hnu:nl28lu
:
l      In file included from l| ../src/s2/s2point.h                      ^:_
27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EIn file included from ms2/s2lax_loop_shape.ccp:l18a:
cIn file included from e../src/s2/s2lax_loop_shape.hT:r41e:
eIn file included from (../src/s2/s2loop.hC:o34r:
dIn file included from R../src/s2/mutable_s2shape_index.he:p30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.ho:n70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl: 198r:
eIn file included from p/usr/local/clang/include/absl/strings/str_cat.h,: 116M:
eIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.hh:o23d:
I/usr/local/clang/include/absl/strings/numbers.hd:e182n:t7i:f iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
 met  h182o | dc)h;a
r      *|                                ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 R  o241u | n#ddTerfiipnDeo uabblselT_onBounfnfuelrl( d_oNuobnlneu ldl,
       c| h                     ^a
r* absl_nonnull buffer);In file included from 
s2/s2furthest_edge_query.cc      :| 16      ^:

In file included from ../src/s2/s2furthest_edge_query.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :../src/s2/s1angle.h22::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from In file included from  /usr/local/clang/include/absl/status/internal/status_internal.has2/s2latlng.cc:b:29s18:
l:
/usr/local/clang/include/absl/strings/cord.h_In file included from :n../src/s2/s2latlng.h972o::n3231n:
:uIn file included from  l../src/s2/s1angle.hwarning: l:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 28
_:
NIn file included from   o../src/s2/s2point.h972n: | n27 u:
 lIn file included from  l ../src/s2/s2coder.h
v:      o23| i                     ^:
d
In file included from  /usr/local/clang/include/absl/status/status.hE:m67p:
lIn file included from In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hs2/s2lax_loop_shape.ccc::e2918T:
:
rIn file included from In file included from e/usr/local/clang/include/absl/strings/cord.h../src/s2/s2lax_loop_shape.he::(8241C:
:
oIn file included from In file included from r/usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/s2loop.hd::R2334e:
:
pIn file included from In file included from */usr/local/clang/include/absl/crc/crc32c.h../src/s2/mutable_s2shape_index.h ::a3230b:
:
sIn file included from l/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/container/btree_map.h_::n15566o::
n36In file included from n:/usr/local/clang/include/absl/container/internal/btree.hu :lwarning: 70ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 
In file included from r/usr/local/clang/include/absl/container/internal/layout.he:p198,  :
 155In file included from c | /usr/local/clang/include/absl/strings/str_cat.ho :n 116se:
txIn file included from p /usr/local/clang/include/absl/strings/internal/stringify_sink.hlIi:nc23il:
i/usr/local/clang/include/absl/strings/numbers.htn:e 182DF:ao60tr:am &awarning:  ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]pC
aoruen  nt182tC | ,c
ah      pa| rt                              ^*u
 ra/usr/local/clang/include/absl/base/nullability.heb:(s241li:_n22nt:o* n note: nexpanded from macro 'absl_nonnull'au
lb  ls241 l | R#_odunenfodiTnnreni upalDboslu lb_pl)neo Tno:nB uulpflf_ e_(rNp(o)dno nuu{lb}l
l
e             | | d                                   ^                     ^,

 c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udIn file included from les2/s2furthest_edge_query.cclf: i16bn:
ueIn file included from f ../src/s2/s2furthest_edge_query.hfa:eb29rs:
)lIn file included from ;_../src/s2/s1angle.h
n:      o28| n:
                                                           ^nIn file included from 
u../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.hl::l27 241:
_:In file included from N22../src/s2/s2coder.ho::n 23nnote: :
expanded from macro 'absl_nonnull'uIn file included from 
l/usr/local/clang/include/absl/status/status.h  l:241
67 |       :
#| In file included from d                     ^/usr/local/clang/include/absl/status/internal/status_internal.he
:f29i:
n/usr/local/clang/include/absl/strings/cord.he: 978a:b36s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l978l |   _ N o nvnouildlIn file included from  
Cs2/s2latlng.cc      o:| m                     ^18m
i:
tIn file included from T../src/s2/s2latlng.hr:e32e:
(In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from In file included from  s2/s2lax_loop_shape.ccC../src/s2/s2point.h:o:18r27:
d:
In file included from RIn file included from ../src/s2/s2lax_loop_shape.he../src/s2/s2coder.h:p:41*23:
 :
In file included from aIn file included from ../src/s2/s2loop.hb/usr/local/clang/include/absl/status/status.h:s:34l67:
_:
In file included from nIn file included from ../src/s2/mutable_s2shape_index.hu/usr/local/clang/include/absl/status/internal/status_internal.h:l:30l29:
a:
In file included from bIn file included from /usr/local/clang/include/absl/container/btree_map.hl/usr/local/clang/include/absl/strings/cord.h:e:66 82:
o:
In file included from lIn file included from d/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:r:70e23:
p:
In file included from ,In file included from /usr/local/clang/include/absl/container/internal/layout.h
/usr/local/clang/include/absl/crc/crc32c.h:      :198| 32:
                                   ^:
In file included from 
/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/base/nullability.h:164:116:257:
8:In file included from :23/usr/local/clang/include/absl/strings/internal/stringify_sink.h :: warning: 23note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/strings/numbers.h
:183  :  1647257 | : |   # warning: idtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]en
tf*i n  ea183 b | acsbhlsa_lr_n*no uanlblnsaulb_llnelo n _nUNuunlllul asRboelude(n
)d       T| r{                      ^i 
prFeltouartnIn file included from T s2/s2furthest_edge_query.ccop:B_16u;:
f In file included from f}../src/s2/s2furthest_edge_query.he
:r      29(| :
f       ^In file included from l
../src/s2/s1angle.ho:a/usr/local/clang/include/absl/base/nullability.h28t::
 241In file included from f:../src/s2/s2point.h,22: :27c :
hnote: In file included from expanded from macro 'absl_nonnull'a../src/s2/s2coder.h
r:*23   :
a241In file included from b | /usr/local/clang/include/absl/status/status.hs#:dl67_e:
nfIn file included from oi/usr/local/clang/include/absl/status/internal/status_internal.hnn:ne29u lalb:
s/usr/local/clang/include/absl/strings/cord.hIn file included from l:_979/usr/local/clang/include/absl/status/status.hn::o3067n::
n uIn file included from lwarning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:
 29_:
N  /usr/local/clang/include/absl/strings/cord.ho979:n | 1268 n: u51 l: l  
warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]       
 |                       ^ 
  1268  |  i n l i n e   vCooirdd In file included from RCs2/s2latlng.cceop:r*18d ::
a:In file included from bI../src/s2/s2latlng.hsn:ll32_i:
nnoIn file included from enR../src/s2/s1angle.hneu:pl:28l: :
ErmIn file included from ep../src/s2/s2point.hpl:,a27 cc:
eoIn file included from Tnr../src/s2/s2coder.hset:e (23CCo:
orrIn file included from ddz/usr/local/clang/include/absl/status/status.hRU:epp67d*a:
 tIn file included from aeb/usr/local/clang/include/absl/status/internal/status_internal.hSsc:lo_29pne:
o&nIn file included from  ns/usr/local/clang/include/absl/strings/cord.hucl:olp82 er:
,e
In file included from p      ,/usr/local/clang/include/absl/crc/internal/crc_cord_state.h| 
:                             ^      23
| :
                                                  ^/usr/local/clang/include/absl/base/nullability.hIn file included from 
:/usr/local/clang/include/absl/crc/crc32c.h241::/usr/local/clang/include/absl/base/nullability.h3222::
:241/usr/local/clang/include/absl/strings/str_format.h ::note: 22165expanded from macro 'absl_nonnull'::
 8  note: :241expanded from macro 'absl_nonnull'  | 
warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |    241 | # dienfti*n ea basbls_ln_onnonnunlull lp __;N
o      n| n       ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2latlng.cc:  18241:
 | In file included from #../src/s2/s2latlng.hd:e32f:
iIn file included from n../src/s2/s1angle.he: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h:_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 82                     ^:

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dIn file included from ss2/s2edge_crossings.cct:,18
:
      In file included from | ../src/s2/s2edge_crossings.h                                          ^:
40:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s1282l:_47n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _ N1282o | ninnulliln
e       | v                     ^o
id Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2edge_crossings.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2edge_crossings.h::6740:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s1angle.h::2928:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2point.h::8227:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/s2coder.h::2323:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/status/status.h::3267:
:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h440::2924:
: /usr/local/clang/include/absl/strings/cord.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1290
:54:   warning: 440type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
int  F1290P | riinnltiFn(es tvdo:i:dF ICLoEr*d :a:bIsnll_innoenRneupl:l: SoeuttTpruete,O rcEomnpstty (FCoorrmdaRteSpp*e ca<bAsrlg_sn.u.l.l>a&b lfeo rrmeapt,,

            | |                                                      ^                       ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257241::2322::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaubllle  __NNounlnlualbll
e      
|                            ^| 
                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2edge_crossings.cc
:18:
In file included from   ../src/s2/s2edge_crossings.h469: | 40i:
nIn file included from t../src/s2/s1angle.h :S28N:
PIn file included from r../src/s2/s2point.hi:n27t:
FIn file included from (../src/s2/s2coder.hc:h23a:
rIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
n/usr/local/clang/include/absl/strings/cord.hn:u1301l:l56 :o uwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
ut,  s1301t | di:n:lsiinzee _vto isdi zCeo,r
d      :| :                   ^I
nl/usr/local/clang/include/absl/base/nullability.hi:241n:e22: note: expanded from macro 'absl_nonnull'
d  ef:in23e:  anote: bexpanded from macro 'absl_nullable's
l_non  n257u | l#ld e_fNionnen ualbls
l      _| n                     ^u
llable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:In file included from 18s2/s2furthest_edge_query.cc:
:In file included from 16../src/s2/s2lax_polygon_shape.h:
:In file included from 30../src/s2/s2furthest_edge_query.h:
:In file included from 29../src/s2/base/logging.h:
:In file included from 21../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2coder.h:
:/usr/local/clang/include/absl/log/internal/check_op.h23::
516In file included from :/usr/local/clang/include/absl/status/status.h17::67 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  /usr/local/clang/include/absl/strings/cord.h516: | 982 : 39 :  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st c  h982a | r *   a bvsoli_dn oAnpnpuelnld TerxeperTtoeIxntl)i;n
e      d| (                ^C
ord/usr/local/clang/include/absl/base/nullability.hR:e241p:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf itnree ea,b
s      l| _                                      ^n
onn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _NonIn file included from ns2/s2lax_polygon_shape.ccu:l18l:

In file included from       ../src/s2/s2lax_polygon_shape.h| :                     ^30
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | cIn file included from os2/s2furthest_edge_query.ccn:s16t:
 In file included from c../src/s2/s2furthest_edge_query.hh:a29r:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:u27l:
lIn file included from a../src/s2/s2coder.hb:l23e:
 In file included from C/usr/local/clang/include/absl/status/status.hh:e67c:
kIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht:r29c:
a/usr/local/clang/include/absl/strings/cord.hs:e984c:m36p:t rwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
Imp  l984( | 
        |              ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d257: 23A:p pnote: eexpanded from macro 'absl_nullable'n
dT  r257e | e#TdoeTfrienee( CaobrsdlR_enpu*l laabbslle_ n_oNnunlullalb lter
e      e| ,                      ^ 
MethoIn file included from ds2/s2lax_polygon_shape.ccI:d18e:
nIn file included from t../src/s2/s2lax_polygon_shape.hi:f30i:
eIn file included from r../src/s2/base/logging.h :m21e:
tIn file included from h/usr/local/clang/include/absl/log/check.ho:d37):
;In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                   ^:

/usr/local/clang/include/absl/log/internal/check_op.h:518/usr/local/clang/include/absl/base/nullability.h::17241:: 22warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  518   | 241  |  # d ecfoinnset  acbhsalr_*n oanbnsull_ln u_lNloanbnluel ls
1      ,|                       ^c
onst char* absl_nuIn file included from ls2/s2furthest_edge_query.ccl:a16b:
lIn file included from e../src/s2/s2furthest_edge_query.h :s292:
,In file included from 
../src/s2/s1angle.h      :| 28                ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
257In file included from :../src/s2/s2coder.h23::23 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/status/status.h
:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n985e: 30a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nul  l985a | b l e   _vNouildl aAbplpee
n      d| T                      ^r
ee(CordIn file included from Rs2/s2lax_polygon_shape.cce:p18*:
 In file included from a../src/s2/s2lax_polygon_shape.hb:s30l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37t:
In file included from r/usr/local/clang/include/absl/log/internal/check_impl.he:e21,:
 /usr/local/clang/include/absl/log/internal/check_op.hM:e518t:h47o:d Iwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
nti  f518i | e r   m ectohnosdt) ;c
h      a| r                             ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241  | s#1d,e fcionnes ta bcshla_rn*o nanbuslll_ n_uNlolnanbullel 
s      2| ,                     ^

      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from ds2/s2furthest_edge_query.cce:f16i:
nIn file included from e../src/s2/s2furthest_edge_query.h :a29b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.h_:N23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
eIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                      ^:

/usr/local/clang/include/absl/strings/cord.h:986:40: In file included from warning: s2/s2lax_polygon_shape.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2lax_polygon_shape.h  :98630 | :
 In file included from  ../src/s2/base/logging.h : 21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd: 37P:
rIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hp:e21n:
d/usr/local/clang/include/absl/log/internal/check_op.hT:519r:e17e:T owarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
li  n519e | d ( C o rcdoRnespt*  cahbasrl*_ naobnsnlu_lnlo ntnruelel, 
e      x| p                                       ^r
te/usr/local/clang/include/absl/base/nullability.hx:t241):;22
:       | note:                 ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29In file included from :
s2/s2lax_polygon_shape.ccIn file included from :../src/s2/s1angle.h18::
28In file included from :
../src/s2/s2lax_polygon_shape.hIn file included from :../src/s2/s2point.h30::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/strings/cord.h520::98813::37 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  520 |   c988o | n s t   cvhoaird*  Parbesple_nnduTlrleaebTleo TCrheeec(kCsotrrdcRaespe*c mapbfsall_sneoInmnpull(l
       t| r            ^e
e/usr/local/clang/include/absl/base/nullability.h,: 257M:e23t:h onote: dexpanded from macro 'absl_nullable'I
de  n257 | #deRfeipn buf:fer):21;:

241      /usr/local/clang/include/absl/log/internal/check_op.h| :      ^298 | 
:#22d:e f/usr/local/clang/include/absl/base/nullability.hwarning: i:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n241
e: 22a:b s  note: l298_expanded from macro 'absl_nonnull' | n
ocnonnu  sl241tl |   #_udNneofsinnnei uagblnslle
_d      n | ocn                     ^nhu
lalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l operator<<(std::basIn file included from is2/s2lax_loop_shape.ccc:_18:
oIn file included from s../src/s2/s2lax_loop_shape.ht:r41e:
aIn file included from m../src/s2/s2loop.h<:c34:
hIn file included from a../src/s2/mutable_s2shape_index.hr:,30 :
TIn file included from r/usr/local/clang/include/absl/container/btree_map.ha:i66t:
sIn file included from >/usr/local/clang/include/absl/container/internal/btree.h&:,70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                     ^:
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2223::
 /usr/local/clang/include/absl/strings/numbers.hnote: :expanded from macro 'absl_nonnull'183
:58:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i183 | nceh aarb*s la_bnsIn file included from oln_s2/s2latlng.ccnn:uo18lnln:
u l_lIn file included from N ../src/s2/s2latlng.hRo:onun32nu:
dlIn file included from Tl../src/s2/s1angle.h
r:i      p28F| l:
o                     ^aIn file included from 
t../src/s2/s2point.hT:o27B:
uIn file included from f../src/s2/s2coder.hf:e23r:
(In file included from f/usr/local/clang/include/absl/status/status.hl:o67a:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hf:,29 :
cIn file included from h/usr/local/clang/include/absl/strings/cord.ha:r82*In file included from :
 s2/s2hausdorff_distance_query.ccIn file included from a:/usr/local/clang/include/absl/crc/internal/crc_cord_state.hb16s:l:
23_In file included from n:
o../src/s2/s2hausdorff_distance_query.hIn file included from n:n/usr/local/clang/include/absl/crc/crc32c.h23u:l:
l32 In file included from :
b../src/s2/s1angle.h/usr/local/clang/include/absl/strings/str_format.hu::f28f503:
e:rIn file included from )20../src/s2/s2point.h;:
:       25warning: | :
                                                         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 

../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/base/nullability.h36::
  241In file included from 503:../src/s2/base/casts.h | 22: :36  :
Fnote: oIn file included from expanded from macro 'absl_nonnull'r../src/s2/base/logging.h
m:a21  t:
241RIn file included from  | a#wd/usr/local/clang/include/absl/log/check.hSe:ifn37ikn:
(eT In file included from a*b/usr/local/clang/include/absl/log/internal/check_impl.hs :la21_bnso:
nl/usr/local/clang/include/absl/log/internal/check_op.h_n:nu299oln:ln 67u_:lN lo nwarning: rntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ua
lwl)
         299 |  |                      ^/ 
/   N O L I N T 
        |                     ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  In file included from  note:  s2/s2lax_loop_shape.ccexpanded from macro 'absl_nonnull' : 
18 :
  In file included from  241../src/s2/s2lax_loop_shape.h  | : #41 d:
 eIn file included from  f../src/s2/s2loop.h i:n 34e :
  aIn file included from  b../src/s2/mutable_s2shape_index.h s: l30 _:
 nIn file included from  o/usr/local/clang/include/absl/container/btree_map.h n:cn66ou:
nlIn file included from sl/usr/local/clang/include/absl/container/internal/btree.ht : _70uN:
noIn file included from sn/usr/local/clang/include/absl/container/internal/layout.hi:ngu198nl:
elIn file included from d
/usr/local/clang/include/absl/strings/str_cat.h       :c| 116h                     ^:
a
In file included from r/usr/local/clang/include/absl/strings/internal/stringify_sink.h*:23 :
a/usr/local/clang/include/absl/strings/numbers.hb:s191l:_42n: owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  )191; | 
s      i| z                                                                  ^e
_/usr/local/clang/include/absl/base/nullability.ht: 241S:i22x:D inote: gexpanded from macro 'absl_nonnull'i
ts  T241o | B#udfeffeirn(ed oaubbslle_ ndo,n ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2hausdorff_distance_query.cc :_16N:
oIn file included from n../src/s2/s2hausdorff_distance_query.hn:u23l:
lIn file included from 
../src/s2/s1angle.h      :| 28                     ^:

In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36In file included from :
s2/s2lax_loop_shape.ccIn file included from :../src/s2/base/logging.h18::
21In file included from :
../src/s2/s2lax_loop_shape.hIn file included from :/usr/local/clang/include/absl/log/check.h41::
37In file included from :
../src/s2/s2loop.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h34::
21In file included from :
../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/log/internal/check_op.h30::
323In file included from :/usr/local/clang/include/absl/container/btree_map.h46::66 :
warning: In file included from /usr/local/clang/include/absl/container/internal/btree.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:  198323:
 | In file included from  /usr/local/clang/include/absl/strings/str_cat.h: 116f:
rIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.he:n23d:
 /usr/local/clang/include/absl/strings/numbers.hv:o198i:d53 :A bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
For  m198a | tcFhlaurs*h (aSbtsrli_nngoinfnyuSliln kF*a satbIsnlt_TnooBnunfuflelr (siinntk3,2
_      t|                                               ^i
, c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ibnuef faebrs)l
_      n| o                                                    ^n
n/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
u  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer,e absl_nullable _tNulliafbileer
       m| e                      ^t
hod);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2lax_polygon_shape.cc:: 18:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2lax_polygon_shape.h
:30:
In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_521n:o17n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _No  n521n | u l l 
       c| o                     ^n
st char* absl_nullable s1, const char*In file included from  s2/s2furthest_edge_query.cca:b16s:
lIn file included from _../src/s2/s2furthest_edge_query.hn:u29l:
lIn file included from a../src/s2/s1angle.hb:l28e:
 In file included from s../src/s2/s2point.h2:,27
:
      In file included from | ../src/s2/s2coder.h                ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67257:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:: 29note: :
expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/cord.h
:989:  31257: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine   989a | b s l _ nvuolilda bPlree p_eNnudlTlraebel(eC
o      r| d                      ^R
ep* absl_nIn file included from os2/s2lax_polygon_shape.ccn:n18u:
lIn file included from l../src/s2/s2lax_polygon_shape.h :t30r:
eIn file included from e../src/s2/base/logging.h,: 21M:
eIn file included from t/usr/local/clang/include/absl/log/check.hh:o37d:
IIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:n21t:
i/usr/local/clang/include/absl/log/internal/check_op.hf:i521e:r47 :m ewarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]h
od)  ;521
 |        |                                ^ 
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfuilnlea balbes ls_1n,o ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
ullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2furthest_edge_query.ccn:u16l:
lIn file included from a../src/s2/s2furthest_edge_query.hb:l29e:
 In file included from _../src/s2/s1angle.hN:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:

In file included from       ../src/s2/s2coder.h| :                      ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2lax_polygon_shape.cc::2918:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2lax_polygon_shape.h994::3030:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 994/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :v522o:i17d: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |    C o pcyoTnos(ts tcdh:a:rs*t raibnsgl*_ naobnsnlu_lnlo nenxuplrlt edxstt)); 
c      o| n                ^s
t /usr/local/clang/include/absl/base/nullability.h{:
241      :| 22                             ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fin  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050: 45: warning: ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
ast T1050o | B u f f e r S  i ze):;
C      o| m    ^m
itTre/usr/local/clang/include/absl/base/macros.he:(251c:o18n:s tnote:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'C
ordR  e251p | *   a_b_salt_tnruilbIn file included from luas2/s2hausdorff_distance_query.cctbel:_e_16 (:
o(In file included from ld../src/s2/s2hausdorff_distance_query.hdi:_a23rg:
enIn file included from po../src/s2/s1angle.h,s:
e28      _:
| iIn file included from                                                        ^f../src/s2/s2point.h
(:_25_:
b/usr/local/clang/include/absl/base/nullability.hIn file included from u:i257l../src/s2/util/coding/coder.h:t:23i36n:
:_In file included from  o../src/s2/base/casts.hbnote: j:eexpanded from macro 'absl_nullable'36c
t:
_In file included from s  i../src/s2/base/logging.h257z: | e21#(:
dOIn file included from ebf/usr/local/clang/include/absl/log/check.hji:,n 370e:
)  In file included from a</usr/local/clang/include/absl/log/internal/check_impl.hb :Ns21,l :
\_
/usr/local/clang/include/absl/log/internal/check_op.hn      :u| 428l                 ^:l
44a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Null  a428b | lAeB
S      L| _                      ^A
TIn file included from Ts2/s2lax_loop_shape.ccR:I18B:
UIn file included from T../src/s2/s2lax_loop_shape.hE:_41:
RIn file included from E../src/s2/s2loop.hT:In file included from U34s2/s2edge_crossings.ccR:
N:In file included from S18../src/s2/mutable_s2shape_index.h_:
:NIn file included from 30O../src/s2/s2edge_crossings.hN:
:NIn file included from 40U/usr/local/clang/include/absl/container/btree_map.h:
L:In file included from L66../src/s2/s1angle.h :
c:In file included from o28/usr/local/clang/include/absl/container/internal/btree.hn:
:sIn file included from 70t../src/s2/s2point.h:
 :In file included from c27/usr/local/clang/include/absl/container/internal/layout.hh:
:aIn file included from 198r../src/s2/s2coder.h:
*:In file included from  23/usr/local/clang/include/absl/strings/str_cat.ha:
:bIn file included from 116s/usr/local/clang/include/absl/status/status.h:
l:In file included from _67/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:
:oIn file included from 23n/usr/local/clang/include/absl/status/internal/status_internal.h:
n:/usr/local/clang/include/absl/strings/numbers.hu29:l:
200l/usr/local/clang/include/absl/strings/cord.h: :7M1302:a: k50warning: e:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C 
hwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c  
k200O |  pc1302hSa | tr r *i   na gb (s 
l       _ n|  o                                           ^ n 
 n u/usr/local/clang/include/absl/base/nullability.h l: l241  : F22a :s  t Inote:  nexpanded from macro 'absl_nonnull' t
 T o   B241 u |  f# fd ee rf (i un ie n  t a3 b2 s _lCt_o nrnod,nR nceuhpla*lr  *a _abNbsoslln__nnnouonlnnlun
ull      ll  | or                     ^eu
pt,_
s      t| r                                                 ^)

In file included from       /usr/local/clang/include/absl/base/nullability.hs2/s2hausdorff_distance_query.cc| In file included from ::      ^s2/s2latlng_rect_bounder.cc24116
:::
2218/usr/local/clang/include/absl/base/nullability.hIn file included from ::
:../src/s2/s2hausdorff_distance_query.h In file included from note: 241:../src/s2/s2latlng_rect_bounder.hexpanded from macro 'absl_nonnull':23:
22:
21:  In file included from :
 241../src/s2/s1angle.hIn file included from note:  | expanded from macro 'absl_nonnull':../src/s2/s2latlng.h#
28:d:
  27eIn file included from f241:
../src/s2/s2point.hi | In file included from :n#e/usr/local/clang/include/absl/hash/hash.h25d ::
ea89In file included from fb:
../src/s2/util/coding/coder.hisIn file included from :nl/usr/local/clang/include/absl/hash/internal/hash.h36e_::
 n79In file included from ao:
../src/s2/base/casts.hbnIn file included from :sn/usr/local/clang/include/absl/base/internal/endian.h36lu::
_l26In file included from nl:
 ../src/s2/base/logging.h_o/usr/local/clang/include/absl/base/internal/unaligned_access.h:Nn:n21o39nu:
:nlIn file included from 45ul/usr/local/clang/include/absl/log/check.h:l : lwarning: _37
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:
      
oIn file included from | n/usr/local/clang/include/absl/log/internal/check_impl.h                     ^n:
   u2139:
l | /usr/local/clang/include/absl/log/internal/check_op.hli:
429n      l:| i31                     ^n:
e  warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nt1  6429_In file included from  | t s2/s2lax_loop_shape.cc  U: n a18Tl:
i1In file included from g ../src/s2/s2lax_loop_shape.hvn:1e41d,L :
oTIn file included from 2a ../src/s2/s2loop.hdv:12346,:
(In file included from  In file included from cs2/s2edge_crossings.ccc../src/s2/mutable_s2shape_index.ho:o:n18n30s:
s:
tIn file included from tIn file included from  ../src/s2/s2edge_crossings.h /usr/local/clang/include/absl/container/btree_map.hv:c:o40h66i:
a:
dIn file included from rIn file included from *../src/s2/s1angle.h*/usr/local/clang/include/absl/container/internal/btree.h : :a28a70b:
b:
sIn file included from sIn file included from l../src/s2/s2point.hl/usr/local/clang/include/absl/container/internal/layout.h_:_:n27n198o:
o:
nIn file included from nIn file included from n../src/s2/s2coder.hun/usr/local/clang/include/absl/strings/str_cat.h:lu:23ll116:
 l:
In file included from In file included from p /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/status/status.h)e:: x2367{p:
:

r/usr/local/clang/include/absl/strings/numbers.hIn file included from       t:/usr/local/clang/include/absl/status/internal/status_internal.h| e200:                                            ^x:29
t54):
: /usr/local/clang/include/absl/strings/cord.hA B/usr/local/clang/include/absl/base/nullability.h:warning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:1312L
_241:A:T  T3822200RIn file included from :s2/s2latlng.cc:18 :
In file included from warning: ../src/s2/s2latlng.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
32:
In file included from ../src/s2/s1angle.h:28:
 In file included from 1312../src/s2/s2point.h | :i27n:
lIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67::
:In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:r29d:
_In file included from i/usr/local/clang/include/absl/strings/cord.hn:t82e:
rIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:l23::
:In file included from C/usr/local/clang/include/absl/crc/crc32c.ho:r32d:
Re/usr/local/clang/include/absl/strings/str_format.hp:*860 :a43b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ullable   860C | o r df:r:iIennldi nveoRiedp :A:bcslleFaorr(m)a t{F
l      u| s                                     ^h
(Fo/usr/local/clang/include/absl/base/nullability.hr:m257a:t23S:i nnote: kexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bssiln_kn,u
l      l| a                                          ^b
le _N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2edge_crossings.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2edge_crossings.h::2940:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s1angle.h::8228:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/s2point.h::2327:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h../src/s2/s2coder.h::3223:
:
In file included from /usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/status/status.h::86767::
60In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:1321:48:   867warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 expl i1321c | iitn lFionrem avtoSiidn kC(osrtdr:_:fIonrlmiante_Rienpt:e:rCnoaply:T:oFAorrrmaayt(ScihnakrI*m palb*s la_bnsoln_nnuolnln udlslt )s )c
o      n| s                                                           ^t
 {/usr/local/clang/include/absl/base/nullability.h
:      241| :                                               ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h: |  note: cexpanded from macro 'absl_nonnull'h
ar* a  b241s | l#_dneofninnuel la bFsals_tnIonntnTuolBlu f_fNeorn(nuuilnlt
3      2| _                     ^t
 n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inIn file included from ls2/s2lax_loop_shape.cci:n18e:
 In file included from u../src/s2/s2lax_loop_shape.hi:n41t:
3In file included from 2../src/s2/s2loop.h_:t34 :
UIn file included from n../src/s2/mutable_s2shape_index.ha:l30i:
gIn file included from n/usr/local/clang/include/absl/container/btree_map.he:d66L:
oIn file included from /usr/local/clang/include/absl/container/internal/btree.ha:d703:
2In file included from (/usr/local/clang/include/absl/container/internal/layout.hc:o198n:
sIn file included from t/usr/local/clang/include/absl/strings/str_cat.h :v116o:
iIn file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.h*: 23a:
b/usr/local/clang/include/absl/strings/numbers.hs:l201_:n5o:n nwarning: u'diagnose_if' is a clang extension [-Wgcc-compat]l
l p  )201  | { 
        |                                              ^A
BSL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_N  E241E | D#_dMeIfNi_nSeI ZaEb(solu_tn_osntnru,l lk F_aNsotnTnouBlulf
f      e| r                     ^S
ize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_sIn file included from is2/s2latlng_rect_bounder.ccz:e18(:
OIn file included from b../src/s2/s2latlng_rect_bounder.hj:,21 :
0In file included from )../src/s2/s2latlng.h :<27 :
NIn file included from ,/usr/local/clang/include/absl/hash/hash.h :\89
:
      In file included from | /usr/local/clang/include/absl/hash/internal/hash.h                 ^:
79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inIn file included from ls2/s2lax_loop_shape.cci:n18e:
 In file included from u../src/s2/s2lax_loop_shape.hi:n41t:
6In file included from 4../src/s2/s2loop.h_:t34 :
UIn file included from n../src/s2/mutable_s2shape_index.ha:l30i:
gIn file included from n/usr/local/clang/include/absl/container/btree_map.he:d66:
LIn file included from o/usr/local/clang/include/absl/container/internal/btree.ha:d706:
4In file included from (/usr/local/clang/include/absl/container/internal/layout.hc:o198n:
sIn file included from t/usr/local/clang/include/absl/strings/str_cat.h :v116o:
iIn file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.h*:23 :
a/usr/local/clang/include/absl/strings/numbers.hb:s202l:_7n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   p202) |  c{h
a      r| *                                            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   F241a | s#tdIenftiTnoeB uafbfselr_(nionntn6u4l_lt  _iN,o ncnhualrl*
       a| b                     ^s
l_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2latlng_rect_bounder.ccs2/s2lax_loop_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2latlng_rect_bounder.h../src/s2/s2lax_loop_shape.h::2141:
:
In file included from In file included from ../src/s2/s2latlng.h../src/s2/s2loop.h::2734:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/mutable_s2shape_index.h::8930:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/container/btree_map.h::7966:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/container/internal/btree.h::2670:
:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h/usr/local/clang/include/absl/container/internal/layout.h::57198::
36In file included from :/usr/local/clang/include/absl/strings/str_cat.h :warning: 116type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
   /usr/local/clang/include/absl/strings/numbers.h57: | 202i:n53l:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
voi  d202  | Ucnhaalri*g naebdsSlt_onroen1n6u(lvlo iFda*s taIbnstlT_onBounfnfuelrl( ipn,t 6u4i_ntt 1i6,_ tc hva)r *{ 
a      b| s                                   ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: bexpanded from macro 'absl_nonnull'u
f  f241e | r#)d
e      f| i                                                    ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from In file included from s2/s2lax_loop_shape.cc/usr/local/clang/include/absl/hash/hash.h::1889:
:
In file included from In file included from ../src/s2/s2lax_loop_shape.h/usr/local/clang/include/absl/hash/internal/hash.h::4179:
:
In file included from In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/base/internal/endian.h::3426:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::3061:
:In file included from 36/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from    /usr/local/clang/include/absl/container/internal/layout.h61: | 198i:
nIn file included from l/usr/local/clang/include/absl/strings/str_cat.hi:n116e:
 In file included from v/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:i23d:
 /usr/local/clang/include/absl/strings/numbers.hU:n203a:l5i:g nwarning: e'diagnose_if' is a clang extension [-Wgcc-compat]d
Sto  r203e | 3 2 ( v oAiBdS*L _aIbNsTlE_RnNoAnLn_uNlElE Dp_,M IuNi_nStI3Z2E_(tb uvf)f e{r
,       | k                                   ^F
as/usr/local/clang/include/absl/base/nullability.ht:T241o:B22u:f fnote: eexpanded from macro 'absl_nonnull'r
Si  z241e | )#;d
e      f| i    ^n
e /usr/local/clang/include/absl/base/macros.ha:b251s:l18_:n onote: nexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'n
ull   251_ | N o n_n_ualtlt
r      i| b                     ^u
te__((diagnose_if(__builtin_object_size(Obj, 0) < N, In file included from \s2/s2latlng_rect_bounder.cc
:      18| :
                 ^In file included from  I      B U T E _ N O I N LaIbNsEl;:
:      s| t                              ^r
ing_view/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nnull   241f | r#adgemfeinnte) ;a
b      s| l                                            ^_
nonnull _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
      expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 432s2/s2furthest_edge_query.cc::1316::
 In file included from ../src/s2/s2furthest_edge_query.hwarning: :29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28  :
432In file included from  | ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :c23h:
aIn file included from r/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
o/usr/local/clang/include/absl/strings/cord.hn:n1054u:l37l:  Mwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
eCh e1054c | k O p S t r ianbgs(lT:1: cvo1r,d _Ti2n tve2r,n
a      l| :            ^:
Co/usr/local/clang/include/absl/base/nullability.hr:d241R:e22p:*  note: aexpanded from macro 'absl_nonnull'b
sl  _no241n | n#udlelf irneep ,a
b      s| l                                    ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonIn file included from ns2/s2hausdorff_distance_query.ccu:l16l:
 In file included from _../src/s2/s2hausdorff_distance_query.hN:o23n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                  In file included from  s2/s2furthest_edge_query.cc : 16 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.hc:o67n:
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h :c29h:
a/usr/local/clang/include/absl/strings/cord.hr:*1061 :a34b:s lwarning: _ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu l1061l |   e xvporitde xCto)p y{T
o      A| r                                                       ^r
ay/usr/local/clang/include/absl/base/nullability.hS:l241o:w22P:a tnote: hexpanded from macro 'absl_nonnull'(
ch  a241r | *# daebfsiln_en oanbnsull_ln odnsntu)l lc o_nNsotn;n
u      l| l                                 ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2hausdorff_distance_query.cc
:16:
In file included from ../src/s2/s2hausdorff_distance_query.h :107823 | :
 In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from :../src/s2/s2point.h::c25o:
rIn file included from d../src/s2/util/coding/coder.h_:i36n:
tIn file included from e../src/s2/base/casts.hr:n36a:
lIn file included from :../src/s2/base/logging.h::C21o:
rIn file included from d/usr/local/clang/include/absl/log/check.hR:e37p:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n451o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Tak  e451R | eApB(S)L _cLoOnGs_tI&N;T
E      R| N                                ^A
L_/usr/local/clang/include/absl/base/nullability.hD:E241F:I22N:E _note: Mexpanded from macro 'absl_nonnull'A
KE  _241C | H#EdCeKf_iOnPe_ SaTbRsIlN_Gn_oEnXnTuElRlN (_bNooonln)u;l
l      
|       ^| 
                     ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   exteIn file included from rs2/s2furthest_edge_query.ccn: 16t:
eIn file included from m../src/s2/s2furthest_edge_query.hp:l29a:
tIn file included from e../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27c:
hIn file included from a../src/s2/s2coder.hr:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 1079M:a33k:e Cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ckO p1079S | t r ianbgs(l : : c\o
r      d| _                              ^i
nt/usr/local/clang/include/absl/base/nullability.he:r241n:a22l:: :note: Cexpanded from macro 'absl_nonnull'o
rd  R241e | p#*d eafbisnle_ naobnsnlu_lnlo nTnauklelR e_pN(o)n n&u&l;l

            | |                                 ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2hausdorff_distance_query.cc:16  :
241In file included from  | ../src/s2/s2hausdorff_distance_query.h#:d23e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l25_:
nIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h :_36N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2hausdorff_distance_query.cc27::
16In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2hausdorff_distance_query.h23::
23In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s1angle.h67::
28In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
25:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/util/coding/coder.h1116::3637:
:In file included from  ../src/s2/base/casts.h:warning: 36type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21:
 In file included from 1116/usr/local/clang/include/absl/log/check.h | : 37 :
cIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:s21t:
 /usr/local/clang/include/absl/log/internal/check_op.hc:r452c:_1i:n twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
nal  :452: | CArBcSCLo_rLdOSGt_aItNeT*E RaNbAsLl__DnEuFlIlNaEb_lMeA KMEa_yCbHeEGCeKt_COrPc_CSoTrRdISNtGa_tEeX(T)E RcNo(nisntt;6
4      _| t                                    ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :^257
:23:/usr/local/clang/include/absl/log/internal/check_op.h :449note: :expanded from macro 'absl_nullable'31
:   note: 257expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
#de  f449i | n e  eaxbtselr_nn utlelmapbllaet e_ Ncuolnlsatb lceh
a      r| *                      ^ 
absl_nonnull MakeCheckOpStringIn file included from (s2/s2furthest_edge_query.cc  :
16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void In file included from Cs2/s2lax_loop_shape.cco:p18y:
TIn file included from o../src/s2/s2lax_loop_shape.hA:r41r:
aIn file included from y../src/s2/s2loop.hI:m34pl:
(In file included from c../src/s2/mutable_s2shape_index.hh:a30r:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198 :
dIn file included from s/usr/local/clang/include/absl/strings/str_cat.ht:)116 :
cIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:s23t:
;/usr/local/clang/include/absl/strings/numbers.h
:      204| :                             ^7
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22: note:   expanded from macro 'absl_nonnull'204
 | c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo nFnausltlI n_tNToonBnuuflfle
r      (| u                     ^i
nt64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buf:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2lax_polygon_shape.ccnote: :expanded from macro 'absl_nonnull'18
:
In file included from ../src/s2/s2lax_polygon_shape.h  :24130 | :
#In file included from d../src/s2/base/logging.he:f22i:
nIn file included from e/usr/local/clang/include/absl/log/log.h :a209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h_:n20o:
nIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.hu:l63l:
 _/usr/local/clang/include/absl/log/internal/vlog_config.hN:o119n:n15u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEIn file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
fer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
FINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | In file included from ^s2/s2latlng_rect_bounder.cc
:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2latlng.h::44927::
31In file included from :/usr/local/clang/include/absl/hash/hash.h :89note: :
In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/hash/internal/hash.h
:79:
/usr/local/clang/include/absl/base/internal/endian.h:164  :44927 | :   warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
ter  n164  | tienmlpilnaet ev ociodn sStt ocrhea1r6*( vaobisdl*_ naobnsnlu_lnlo nMnauklelC hpe,c kuOipnStt1r6i_ntg (v )   {\

            | |                           ^                              ^

/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: In file included from warning: s2/s2latlng_rect_bounder.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2latlng_rect_bounder.h::45021::
25In file included from :../src/s2/s2latlng.h :27note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/hash/hash.h:89:
  In file included from 450/usr/local/clang/include/absl/hash/internal/hash.h | : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 168 :x36,:  xwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con  s168t |  icnhlairn*e  aubisnlt_3n2o_ntn uLlola)d
3      2| (                        ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :v22o:i dnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  apb)s l{_
n      o| n                                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: In file included from warning: s2/s2latlng_rect_bounder.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2latlng_rect_bounder.h:21  :
457In file included from  | ../src/s2/s2latlng.hA:B27S:
LIn file included from _/usr/local/clang/include/absl/hash/hash.hL:O89G:
_In file included from I/usr/local/clang/include/absl/hash/internal/hash.hN:T79E:
R/usr/local/clang/include/absl/base/internal/endian.hN:A172L:_27D:E Fwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
E_M  A172K | Ei_nClHiEnCeK _vOoPi_dS TSRtIoNrGe_3E2X(TvEoRiNd(*u nasbisgln_endo ncnhualrl) ;p
,       | u^i
nt/usr/local/clang/include/absl/log/internal/check_op.h3:2449_:t31 :v )note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'{

      |                           ^  
449 |  /usr/local/clang/include/absl/base/nullability.h :e241x:t22e:r nnote:  expanded from macro 'absl_nonnull't
em  p241l | a#tdee fcionnes ta bcshla_rn*o nanbuslll_ n_oNnonnunlull lM
a      k| e                     ^C
heckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2latlng_rect_bounder.ccn:n18u:
lIn file included from l../src/s2/s2latlng_rect_bounder.h
:      21| :
                     ^In file included from 
../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:In file included from 89s2/s2hausdorff_distance_query.cc:
:In file included from 16/usr/local/clang/include/absl/hash/internal/hash.h:
:In file included from 79../src/s2/s2hausdorff_distance_query.h:
:23/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 176../src/s2/s1angle.h::3628::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/util/coding/coder.h:36  :
176In file included from  | ../src/s2/base/casts.hi:n36l:
iIn file included from n../src/s2/base/logging.he: 21u:
iIn file included from n/usr/local/clang/include/absl/log/check.ht:6374:
_In file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :L21o:
a/usr/local/clang/include/absl/log/internal/check_op.hd:64574:(1c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 v/usr/local/clang/include/absl/log/internal/check_op.ho:i450d:*25 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
_n  o450n | n u l l   p )x ,{ 
x      ,|                                     ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel )a
b      s| l                        ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from In file included from s2/s2hausdorff_distance_query.cc../src/s2/s2latlng_rect_bounder.h::1621:
:
In file included from In file included from ../src/s2/s2hausdorff_distance_query.h../src/s2/s2latlng.h::2327:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/hash/hash.h::2889:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/hash/internal/hash.h::2579:
:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/internal/endian.h::36180:
:In file included from 27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.h:23:
s2/s2lax_polygon_shape.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2lax_polygon_shape.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h30::
29In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/strings/cord.h22::
1146In file included from :/usr/local/clang/include/absl/log/log.h10::209 :
In file included from warning: /usr/local/clang/include/absl/log/internal/log_impl.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]20
:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63 :
1146 | /usr/local/clang/include/absl/log/internal/vlog_config.hC:o133r:d37R:e pwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl_n  o133n | niunltl  RNeegwiEsxtteerrAnnadlIRneipt(iaablsilz:e:(sVtLroignSgi_tvei*e wa bdsalt_an,o
n      n| u         ^l
l /usr/local/clang/include/absl/base/nullability.hv:)241;:
22      :|                                      ^note: 
expanded from macro 'absl_nonnull'
  241/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  a_bNsoln_nnuolnln
u      l| l                     ^ 
_Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:30:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157In file included from  | s2/s2furthest_edge_query.ccV:L16o:
gIn file included from S../src/s2/s2furthest_edge_query.hi:t29e:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:u27l:
lIn file included from a../src/s2/s2coder.hb:l23e:
 In file included from S/usr/local/clang/include/absl/status/status.he:t67V:
MIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hd:u29l:
e/usr/local/clang/include/absl/strings/cord.hL:i1159s:t17H:e awarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
orT e1159s | tiOnnlliyn(e
       C| o          ^r
dR/usr/local/clang/include/absl/base/nullability.he:p257*: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle fNienweE xatbesrln_anluRlelpa(b
l      e|                  ^_
Nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e 
note:       expanded from macro 'absl_nonnull'| 
                      ^
  241 | #defIn file included from is2/s2lax_polygon_shape.ccn:e18 :
aIn file included from b../src/s2/s2lax_polygon_shape.hs:l30_:
nIn file included from o../src/s2/base/logging.hn:n22u:
lIn file included from l/usr/local/clang/include/absl/log/log.h :_209N:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hn:u20l:
lIn file included from 
/usr/local/clang/include/absl/log/absl_vlog_is_on.h      :| 63                     ^:

/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :257:23s2/s2edge_crossings.cc:: 18:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2edge_crossings.h
:40:
  In file included from 257../src/s2/s1angle.h | :#28d:
eIn file included from f../src/s2/s2point.hi:n27e:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
_N/usr/local/clang/include/absl/strings/cord.hu:l1666l:a48b:l ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                 In file included from  s2/s2edge_crossings.cc : 18 :
 In file included from  ../src/s2/s2edge_crossings.h : 40 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.hC:o23r:
dIn file included from R/usr/local/clang/include/absl/status/status.he:p67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_/usr/local/clang/include/absl/strings/cord.hn:u1672l:l41a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
rep) 
1672       | | i                                              ^n
lin/usr/local/clang/include/absl/base/nullability.he: 257v:o23i:d  note: Cexpanded from macro 'absl_nullable'o
rd  :257: | A#ddveafnicnee( CahbasrlI_tneurlaltaobrl*e  a_bNsull_lnaobnlneu
l      l|                        ^i
t, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
/usr/local/clang/include/absl/base/nullability.hIn file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonIn file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inlinenull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(      In file included from  s2/s2edge_crossings.cc : 18 :
 In file included from  ../src/s2/s2edge_crossings.h : 40 :
 In file included from  ../src/s2/s1angle.h : 28\:

In file included from       ../src/s2/s2point.h| :                               ^27
:
In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:257:/usr/local/clang/include/absl/status/status.h23::725 :38note: :expanded from macro 'absl_nullable' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #de  f725i | n e  satbastli_cn usltlaatbulse_ i_nNtuelrlnaabll:e:
S      t| a                      ^t
usRep* absl_nonnullIn file included from  s2/s2hausdorff_distance_query.ccP:r16e:
pIn file included from a../src/s2/s2hausdorff_distance_query.hr:e23T:
oIn file included from M../src/s2/s1angle.ho:d28i:
fIn file included from y../src/s2/s2point.h(:
25      :
| In file included from                                      ^../src/s2/util/coding/coder.h
:36:
In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.h::36241:
:In file included from 22../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i503n:e1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/log/internal/check_op.ho:n489n:u47l:l  note: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
onnu  l489l | 
        |                       ^ 
  const T1& v1, const T2& v2, const char* absl_nIn file included from os2/s2edge_crossings.ccn:n18u:
lIn file included from l../src/s2/s2edge_crossings.h :e40x:
pIn file included from r../src/s2/s1angle.ht:e28x:
tIn file included from )../src/s2/s2point.h :{27 :
 In file included from  ../src/s2/s2coder.h : 23\:

      /usr/local/clang/include/absl/status/status.h| :                                              ^732
:29:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
732 |    241  | s#tdaetfiicn ec oanbsstl _sntodn:n:usltlr i_nNgo*n naublsll
_      n| o                     ^n
null EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   staIn file included from ts2/s2hausdorff_distance_query.cci:c16 :
cIn file included from o../src/s2/s2hausdorff_distance_query.hn:s23t:
 In file included from s../src/s2/s1angle.ht:d28::
:In file included from s../src/s2/s2point.ht:r25i:
nIn file included from g../src/s2/util/coding/coder.h*: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hM:o37v:
eIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.hF:r21o:
m/usr/local/clang/include/absl/log/internal/check_op.hS:t503r:i1n:g (warning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension];

      | /usr/local/clang/include/absl/log/internal/check_op.h                            ^:
497:32/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
 note: expanded from macro 'absl_nonnull'
  497 |    241  | i#ndleifnien ec oanbsstle_xnporn ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2edge_crossings.cc :a18b:
sIn file included from l../src/s2/s2edge_crossings.h_:n40u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from  ../src/s2/s2point.h_:N27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
e/usr/local/clang/include/absl/status/status.h
:      751| :                      ^61
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 751s2/s2hausdorff_distance_query.cc | : 16 :
sIn file included from t../src/s2/s2hausdorff_distance_query.ha:t23i:
cIn file included from  ../src/s2/s1angle.hu:i28n:
tIn file included from p../src/s2/s2point.ht:r25_:
tIn file included from  ../src/s2/util/coding/coder.hP:o36i:
nIn file included from t../src/s2/base/casts.he:r36T:
oIn file included from R../src/s2/base/logging.he:p21(:
sIn file included from t/usr/local/clang/include/absl/log/check.ha:t37u:
sIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hi:n21t:
e/usr/local/clang/include/absl/log/internal/check_op.hr:n503a:l1::: Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tu/usr/local/clang/include/absl/log/internal/check_op.hs:R498e:p35*:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
l_n  o498n | n u l l   r )i;n
t       | v                                                            ^1
, /usr/local/clang/include/absl/base/nullability.hi:n241t: 22v:2 ,note:  expanded from macro 'absl_nonnull'c
on  s241t |  #cdheafri*n ea basbls_ln_onnonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
null exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]In file included from 
s2/s2hausdorff_distance_query.cc:16  :
227In file included from  | ../src/s2/s2hausdorff_distance_query.h : 23 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.he:n25a:
bIn file included from l../src/s2/util/coding/coder.he:_36i:
fIn file included from (../src/s2/base/casts.hs:t36r:
_In file included from f../src/s2/base/logging.ho:r21m:
aIn file included from t/usr/local/clang/include/absl/log/check.h_:i37n:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:n21a:
l:/usr/local/clang/include/absl/log/internal/check_op.h::E504n:s1u:r ewarning: Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nstex  p504r | (AfBoSrLm_aLtO)G,_
I      N| T          ^E
RNAL_CH/usr/local/clang/include/absl/strings/internal/str_format/parser.hE:C229K:_11O:P _warning: I'enable_if' is a clang extension [-Wgcc-compat]MP
L(Ch  e229c | k _ L E ,   < = ) 
       e| n^a
ble/usr/local/clang/include/absl/log/internal/check_op.h_:i488f:(32s:t rnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'f
orma  t488_ | i n tienrlnianle: :cVoanlsitdeFxoprrm actoInmsptl <cCh.a.r.*> (afbosrlm_antu)l,l
a      b| l          ^e
 name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& In file included from as2/s2lax_polygon_shape.cc):;18
:
      In file included from | ../src/s2/s2lax_polygon_shape.h                            ^:
31:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/encoded_s2point_vector.h::24127::
22In file included from :../src/s2/encoded_string_vector.h :30note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/util/coding/coder.h:40  :
241In file included from  | ../src/s2/util/coding/varint.h#:d44e:
fIn file included from i../src/s2/util/bits/bits.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/numeric/bits.hs:l52_:
nIn file included from o/usr/local/clang/include/absl/base/internal/endian.hn:n26u:
ll/usr/local/clang/include/absl/base/internal/unaligned_access.h :_39N:o45n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
   39 | inline uint16_t UnaliIn file included from gs2/s2lax_loop_shape.ccn:e18d:
LIn file included from o../src/s2/s2lax_loop_shape.ha:d411:
6In file included from (../src/s2/s2loop.hc:o34n:
sIn file included from t../src/s2/mutable_s2shape_index.h :v30o:
iIn file included from d/usr/local/clang/include/absl/container/btree_map.h*: 66a:
bIn file included from s/usr/local/clang/include/absl/container/internal/btree.hl:_70n:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
l/usr/local/clang/include/absl/strings/str_cat.h :p637): 29{:
       | warning:                                             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h  :637241 | :v22o:i dnote:  expanded from macro 'absl_nonnull'S
tr  A241p | p#ednedf(isnted :a:bsstlr_innogn*n ualbls l__Nnoonnnnuullll
       d| e                     ^s
t, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18In file included from :
s2/s2lax_loop_shape.ccIn file included from :../src/s2/s2lax_polygon_shape.h18::
31In file included from :
../src/s2/s2lax_loop_shape.hIn file included from :../src/s2/encoded_s2point_vector.h41::
27In file included from :
../src/s2/s2loop.hIn file included from :../src/s2/encoded_string_vector.h34::
30In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/util/coding/coder.h30::
40In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/util/coding/varint.h66::
44In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :../src/s2/util/bits/bits.h70::
21In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :/usr/local/clang/include/absl/numeric/bits.h198::
52:
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/base/internal/endian.h639::2629:
: /usr/local/clang/include/absl/base/internal/unaligned_access.h:warning: 45type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
45: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]639
 | voi   d45  | SitnrlAipnpee nudi(nstt3d2:_:ts tUrnianlgi*g naebdsLlo_ando3n2n(ucloln sdte svto,i dc*o nasbts lA_lnpohnanNuulml&  pa), 
{      
|                                   ^| 
                                            ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std:In file included from :s2/s2lax_polygon_shape.ccs:t18r:
iIn file included from n../src/s2/s2lax_polygon_shape.hg:*31 :
aIn file included from b../src/s2/encoded_s2point_vector.hs:l27_:
nIn file included from o../src/s2/encoded_string_vector.hn:n30u:
lIn file included from l../src/s2/util/coding/coder.h :d40e:
sIn file included from t../src/s2/util/coding/varint.h,: 44c:
oIn file included from n../src/s2/util/bits/bits.hs:t21 :
AIn file included from l/usr/local/clang/include/absl/numeric/bits.hp:h52a:
NIn file included from u/usr/local/clang/include/absl/base/internal/endian.hm:&26 :
a/usr/local/clang/include/absl/base/internal/unaligned_access.h,:
51      :| 45                            ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:    note: 51expanded from macro 'absl_nonnull' | 
in  l241i | n#ed eufiinnte6 4a_bts lU_nnaolningunleld L_oNaodn6n4u(lclo
n      s| t                     ^ 
void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2lax_loop_shape.cc::2218::
 In file included from ../src/s2/s2lax_loop_shape.hnote: :expanded from macro 'absl_nonnull'41
:
In file included from ../src/s2/s2loop.h  :24134 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f30i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:40:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StIn file included from as2/s2hausdorff_distance_query.cct:u16s:
RIn file included from e../src/s2/s2hausdorff_distance_query.hp:*23 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n25u:
lIn file included from l../src/s2/util/coding/coder.h :r36e:
pIn file included from )../src/s2/base/casts.h :{36
:
      In file included from | ../src/s2/base/logging.h                                ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/log/internal/check_op.h:505  :2411 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine   a505b | sAlB_SnLo_nLnOuGl_lI N_TNEoRnNnAuLl_lC
H      E| C                     ^K
_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 | In file included from  s2/s2edge_crossings.cc : 18 :
 In file included from  ../src/s2/s2edge_crossings.hc:o40n:
sIn file included from t../src/s2/s1angle.h :T281:
&In file included from  ../src/s2/s2point.hv:127,:
 In file included from c../src/s2/s2coder.ho:n23s:
t/usr/local/clang/include/absl/status/status.h :T10632:&13 :v 2warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con s1063t |  ccohnasrt*  cahbasrl*_ naobnsnlu_lnlo nenxuplrlt eSxtta)t u{s M e s s a\g
e      A| s                                              ^C
St/usr/local/clang/include/absl/base/nullability.hr:(241
:      22| :            ^ 
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_anulblsalb_lneo nnnaumlel# #_INmopnln(u l l 
        |                       ^ 
            \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from In file included from ../src/s2/s1angle.hs2/s2lax_polygon_shape.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2lax_polygon_shape.h::2531:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/encoded_s2point_vector.h::3627:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/encoded_string_vector.h::3630:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/util/coding/coder.h::2140:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/util/coding/varint.h::3744:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/util/bits/bits.h::2121:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/numeric/bits.h505::521:
:In file included from  /usr/local/clang/include/absl/base/internal/endian.h:warning: 26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/base/internal/unaligned_access.h:/usr/local/clang/include/absl/log/internal/check_op.h57::49836::35 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

     57498 |  | i n l i n e  ivnoti dv 1U,n ailnitg nve2d,S tcoornes1t6 (cvhoaird**  aabbssll__nnoonnnnuullll  epx,p rutienxtt1)6 _{t   v )   { 
        |                                     ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:                                   ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvaonceAnnnduRlela d_(NCohnanruIltle
r      a| t                     ^o
r* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absIn file included from ls2/s2furthest_edge_query.cc_:n16o:
nIn file included from n../src/s2/s2furthest_edge_query.hu:l29l:
 In file included from p../src/s2/s1angle.hc:)28
:
      In file included from | ../src/s2/s2point.h                                                   ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/cord.h:1672:  41241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine  1672a | bisnll_innoen nvuolild  _CNoorndn:u:lAld
v      a| n                     ^c
e(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2hausdorff_distance_query.cc440: | 16i:
nIn file included from t../src/s2/s2hausdorff_distance_query.h :F23P:
rIn file included from i../src/s2/s1angle.hn:t28F:
(In file included from s../src/s2/s2point.ht:d25::
:In file included from F../src/s2/util/coding/coder.hI:L36E:
*In file included from  ../src/s2/base/casts.ha:b36s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
oIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.ht:p21u:
t,/usr/local/clang/include/absl/log/internal/check_op.h :c506o:n1s:t  warning: Ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
rmat  S506p | eAcB<SALr_gLsO.G._.I>N&T EfRoNrAmLa_tC,H
E      C| K                       ^_
OP_I/usr/local/clang/include/absl/base/nullability.hM:P241L:(22C:h enote: cexpanded from macro 'absl_nonnull'k
_G  E241, |  #>d=e)f
i      n| e^ 
abs/usr/local/clang/include/absl/log/internal/check_op.hl:_488n:o32n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
 _N  o488n | n u liln
l      i| n                     ^e
 constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2/s2latlng_rect.cci:n18e:
 In file included from a../src/s2/s2latlng_rect.hb:s30l:
_In file included from n../src/s2/s1angle.hu:l28l:
aIn file included from b../src/s2/s2point.hl:e27 :
_In file included from N../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                      ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469In file included from :s2/s2hausdorff_distance_query.cc20::16 :
In file included from warning: ../src/s2/s2hausdorff_distance_query.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from ../src/s2/s1angle.h:28  :
469In file included from  | ../src/s2/s2point.hi:n25t:
 In file included from S../src/s2/util/coding/coder.hN:P36r:
iIn file included from n../src/s2/base/casts.ht:F36(:
cIn file included from h../src/s2/base/logging.ha:r21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l506 :o1u:t pwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
, /usr/local/clang/include/absl/log/internal/check_op.hs:t489d::47::s inote: zexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
_t s  i489z | e , 
        |                     ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22T:1 &note:  expanded from macro 'absl_nonnull'v
1,   241c | o#ndsetf iTn2e&  avb2s,l _cnoonnsntu lclh a_rN*o nanbuslll_
n      o| n                     ^n
ull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absIn file included from ls2/s2hausdorff_distance_query.cc_:n16o:
nIn file included from n../src/s2/s2hausdorff_distance_query.hu:l23l:
 In file included from r../src/s2/s1angle.ha:w28):
 In file included from  ../src/s2/s2point.h/:/25 :
NIn file included from O../src/s2/util/coding/coder.hL:I36N:
TIn file included from 
../src/s2/base/casts.h      :| 36                   ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 506#:d1e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s497l:_32n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
ll _  N497o | n n uilnll
i      n| e                     ^ 
constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:27:
In file included from ../src/s2/encoded_string_vector.h:30:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23In file included from :s2/s2edge_crossings.cc :18note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2edge_crossings.h:41  :
257In file included from  | ../src/s2/s1chord_angle.h#:d31e:
fIn file included from i../src/s2/s2pointutil.hn:e27 :
ab../src/s2/util/math/matrix3x3.hs:l276_:n5u:l lwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
le _N  u276l | l a b l eS
2      _| C                      ^H
ECK_NE(dIn file included from es2/s2hausdorff_distance_query.cct:,16 :
VIn file included from T../src/s2/s2hausdorff_distance_query.hy:p23e:
(In file included from 0../src/s2/s1angle.h):)28 :
<In file included from <../src/s2/s2point.h :"25 :
CIn file included from a../src/s2/util/coding/coder.hn:'36t:
 In file included from i../src/s2/base/casts.hn:v36e:
rIn file included from s../src/s2/base/logging.he:.21 :
DIn file included from e/usr/local/clang/include/absl/log/check.ht:e37r:
mIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:a21n:
t/usr/local/clang/include/absl/log/internal/check_op.h :=512 :047.:" ;warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|     ^
  512 |  ../src/s2/base/logging.h : 37 :21c:o nnote: sexpanded from macro 'S2_CHECK_NE't
 c   h37a | r#*d eafbisnle_ nSu2l_lCaHbElCeK _sN1E,  CcHoEnCsKt_ NcEh
a      r| *                    ^ 
abs/usr/local/clang/include/absl/log/check.hl:_120n:u3l:l anote: bexpanded from macro 'CHECK_NE'l
e s  2120, | 
        | A                                              ^B
SL/usr/local/clang/include/absl/base/nullability.h_:L257O:G23_:I Nnote: Texpanded from macro 'absl_nullable'E
RN  A257L | _#CdHeEfCiKn_eN Ea_bIsMlP_Ln(u(lvlaalb1l)e,  _#Nvualll1a,b l(ev
a      l| 2                      ^)
, #valIn file included from 2s2/s2hausdorff_distance_query.cc):
16      :
| In file included from   ^../src/s2/s2hausdorff_distance_query.h
:23:
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s1angle.h51::283:
:In file included from  ../src/s2/s2point.h:note: 25expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL':

In file included from ../src/s2/util/coding/coder.h:36:
   In file included from 51../src/s2/base/casts.h | : 36 :
AIn file included from B../src/s2/base/logging.hS:L21_:
LIn file included from O/usr/local/clang/include/absl/log/check.hG:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
A/usr/local/clang/include/absl/log/internal/check_op.hL:_513C:H17E:C Kwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O
P(C  h513e | c k _ N Ec,o n!s=t,  cvhaalr1*,  avbasll1__ntoenxntu,l lv aelx2p,r tveaxlt2)_;t
e      x| t                ^)

      /usr/local/clang/include/absl/base/nullability.h|   ^:
241:22: /usr/local/clang/include/absl/log/internal/check_op.hnote: :68expanded from macro 'absl_nonnull':
22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'  
241 | #d   e68f | i n ew haiblsel _(ncoonnnsutl lc h_aNro*n naublsll
_      n| u                     ^l
lable absl_log_internal_check_op_result In file included from  s2/s2hausdorff_distance_query.cc : 16 :
 In file included from  ../src/s2/s2hausdorff_distance_query.h : 23 :
 In file included from \../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36257:
:In file included from 23../src/s2/base/casts.h:: 36:
note: In file included from expanded from macro 'absl_nullable'../src/s2/base/logging.h
:21:
  In file included from 257/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b514s:l13_:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
abl  e514  | _cNounlslta bclhea
r      *|                        ^a
bsl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from In file included from ../src/s2/s2hausdorff_distance_query.hs2/s2edge_crossings.cc::2318:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2edge_crossings.h::2841:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1chord_angle.h::2531:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2pointutil.h::3627:
:
In file included from ../src/s2/base/casts.h../src/s2/util/math/matrix3x3.h::36276:
:In file included from 5../src/s2/base/logging.h:: 21:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.h
:37:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/check_impl.h::3721::
21/usr/local/clang/include/absl/log/internal/check_op.h:: 515:note: 17expanded from macro 'S2_CHECK_NE':
 warning:    type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]37
 | #d  e515f | i n e   Sc2o_nCsHtE CcKh_aNrE*  CaHbEsClK__nNuEl
l      a| b                    ^l
e /usr/local/clang/include/absl/log/check.hs:1120,: 3c:o nnote: sexpanded from macro 'CHECK_NE't
 ch  a120r | *   aAbBsSlL__nLuOlGl_aIbNlTeE RsN2A,L
_      C| H                ^E
CK/usr/local/clang/include/absl/base/nullability.h_:N257E:_23I:M Pnote: Lexpanded from macro 'absl_nullable'(
(v  a257l | 1#)d,e f#ivnael 1a,b s(lv_anlu2l)l,a b#lvea l_2N)u
l      l| a  ^b
le/usr/local/clang/include/absl/log/internal/check_impl.h
:      51| :                      ^3
: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   In file included from 51s2/s2hausdorff_distance_query.cc | : 16 :
AIn file included from B../src/s2/s2hausdorff_distance_query.hS:L23_:
LIn file included from O../src/s2/s1angle.hG:_28I:
NIn file included from T../src/s2/s2point.hE:R25N:
AIn file included from L../src/s2/util/coding/coder.h_:C36H:
EIn file included from C../src/s2/base/casts.hK:_36O:
PIn file included from (../src/s2/base/logging.hC:h21e:
cIn file included from k/usr/local/clang/include/absl/log/check.h_:N37E:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h!:=21,:
 /usr/local/clang/include/absl/log/internal/check_op.hv:a515l:147,:  vwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
1_t  e515x | t ,   v aclo2n,s tv aclh2a_rt*e xatb)s
l      _| n  ^u
ll/usr/local/clang/include/absl/log/internal/check_op.ha:b75l:e61 :s 1note: ,expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' 
con   s75t |   c hAaBrS*L _aLbOsGl__InNuTlElRaNbAlLe_ CsH2E,C
K      (| :                                              ^:
ab/usr/local/clang/include/absl/base/nullability.hs:l257:::23i:m pnote: lexpanded from macro 'absl_nullable'i
ci  t257_ | c#adsetf<icnoen satb sclh_anru*l laabbslle_ n_oNnunlullalb>l(e 
        |                        ^ 
\
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2hausdorff_distance_query.cc::2216::
 In file included from ../src/s2/s2hausdorff_distance_query.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f25i:
nIn file included from e../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                     ^516
:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #defin |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_noennul la besxlp_rntuelxlta)b;i
l      i| t                ^y
_u/usr/local/clang/include/absl/base/nullability.hn:k241n:o22w:n  note: _expanded from macro 'absl_nonnull'N
ul  l241_ | u#ndsepfeicnief iaebds
l      _| n                                 ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2latlng_rect_bounder.cc23::
18In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2latlng_rect_bounder.h67::
21In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2latlng.h29::
27In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/hash/hash.h94::
89In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h31::
90:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/strings/string_view.h::85153::4554::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  851    | 53  |  c o n s tbeoxoplr  (satbrsiln:g:_tvyipeew_ iNduelnltSiatfye<STt>r:i:ntgyVpiee:w:(*c oanbsstl _cnhoanrn*u lalb smle_tnhuoldl)a(b)l
e       | p                                            ^)
 {/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                     ^22
: note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:  257241: | 23#:d enote: fexpanded from macro 'absl_nullable'i
ne   257a | b#sdle_fnionnen ualbls l__Nnounlnlualbll
e       | _                     ^N
ullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2edge_crossings.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1831:
:
In file included from ../src/s2/s2edge_crossings.h/usr/local/clang/include/absl/synchronization/mutex.h::471033:
:In file included from 20../src/s2/s2predicates.h:: 55:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/flags/flag.h
:40:
 /usr/local/clang/include/absl/flags/commandlineflag.h1033: | 163 : 56v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Wait(  M163u | t e xb*o oalb sPla_rnsoenFnruolml( ambus)l :{:
s      t| r                   ^i
ng_/usr/local/clang/include/absl/base/nullability.hv:i241e:w22 :v anote: lexpanded from macro 'absl_nonnull'u
e,   241s | t#dd:e:fsitnrei nagb*s la_bnsoln_nnuolnln u_lNlo nenrurlolr
)      ;| 
                     ^      
|                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2latlng.ccs:l18_:
nIn file included from o../src/s2/s2latlng.hn:n32u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration In file included from ts2/s2edge_crossings.cci:m18e:
oIn file included from u../src/s2/s2edge_crossings.ht:)47 :
{In file included from 
../src/s2/s2predicates.h      :| 55                              ^:

In file included from In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/flags/flag.h::s2/s2latlng_rect.cc24140::18:
22:
:/usr/local/clang/include/absl/flags/commandlineflag.hIn file included from  :../src/s2/s2latlng_rect.h193note: ::expanded from macro 'absl_nonnull'3027
:
:In file included from    ../src/s2/s1angle.h241warning: : | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28#
:
dIn file included from e../src/s2/s2point.hf:  i27193n:
 | eIn file included from   ../src/s2/s2coder.ha b:sv23li:
_rIn file included from nt/usr/local/clang/include/absl/status/status.hou:an67nl:
u In file included from vl/usr/local/clang/include/absl/status/internal/status_internal.holi: d29 _:
RNIn file included from eoa/usr/local/clang/include/absl/strings/cord.hdn(:nv86uo:
ill/usr/local/clang/include/absl/strings/cord_analysis.h
:      32| :                     ^47
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstiIn file included from ms2/s2latlng.cca:t18e:
dIn file included from M../src/s2/s2latlng.he:m32o:
rIn file included from y../src/s2/s1angle.hU:s28a:
gIn file included from e../src/s2/s2point.h(:c27o:
nIn file included from s../src/s2/s2coder.ht: 23C:
oIn file included from r/usr/local/clang/include/absl/status/status.hd:R67e:
pIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hr:e1069p:)32;:
       | warning:                                               ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1069/usr/local/clang/include/absl/base/nullability.h | : 241 :b22o:o lnote:  expanded from macro 'absl_nonnull'W
ai  t241W | i#tdheDfeiandel ianbes(lM_untoenxn*u lalb s_lN_onnonnunlull
l       | m                     ^u
, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2latlng_rect.cce:f18i:
nIn file included from e../src/s2/s2latlng_rect.h :a30b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePIn file included from rs2/s2latlng.cce:c18i:
sIn file included from e../src/s2/s2latlng.hM:e32m:
oIn file included from r../src/s2/s1angle.hy:U28s:
aIn file included from g../src/s2/s2point.he:(27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
CIn file included from o/usr/local/clang/include/absl/status/status.hr:d67R:
eIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :r1088e:p35):; 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                                ^

/usr/local/clang/include/absl/base/nullability.h :1088241 | : 22 :v onote: iexpanded from macro 'absl_nonnull'd
 E  n241a | b#ldeeDfeibnueg Laobgs(lc_onnosntn uclhla r_*N oanbnsull_ln
u      l| l                     ^a
ble name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2latlng_rect.ccexpanded from macro 'absl_nullable':
18:
In file included from   ../src/s2/s2latlng_rect.h257: | 30#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:u29l:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hb:l86e:

      /usr/local/clang/include/absl/strings/cord_analysis.h| :                      ^56
:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEIn file included from ss2/s2latlng.cct:i18m:
aIn file included from t../src/s2/s2latlng.he:d32F:
aIn file included from i../src/s2/s1angle.hr:S28h:
aIn file included from r../src/s2/s2point.he:M27e:
mIn file included from o../src/s2/s2coder.hr:y23U:
sIn file included from a/usr/local/clang/include/absl/status/status.hg:e67(:
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:s29t:
 In file included from C/usr/local/clang/include/absl/strings/cord.ho:r94d:
RIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hp:*31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s1091l:_26n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll  r1091e | p ) ;b
o      o| l                                                       ^ 
Wa/usr/local/clang/include/absl/base/nullability.hi:t241C:o22m:m onote: nexpanded from macro 'absl_nonnull'(
Mu  t241e | x#*d eafbisnle_ naobnsnlu_lnlo nmnuutlelx ,_
N      o| n                         ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28d* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& condIn file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from In file included from ../src/s2/s2predicates.hs2/s2lax_loop_shape.cc::5518:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h../src/s2/s2lax_loop_shape.h::4241:
:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.h../src/s2/s2loop.h::3034:
:
/usr/local/clang/include/absl/base/call_once.hIn file included from :../src/s2/mutable_s2shape_index.h97::3018:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:warning: 66type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:   7397:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:n23c:
eIn file included from _/usr/local/clang/include/absl/crc/crc32c.hf:l32a:
gIn file included from */usr/local/clang/include/absl/strings/str_format.h :a84b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/str_format/bind.h_:n29o:
nn/usr/local/clang/include/absl/strings/internal/str_format/parser.hu:l227l: 11f:l awarning: g'enable_if' is a clang extension [-Wgcc-compat])
;
      |                  ^
  227 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 e  n241a | b#ldee_fiifn(es tarb_sflo_rnmoantn_uilnlt e_rNnoanln:u:lEln
s      u| r                     ^e
Constexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(foIn file included from rs2/s2edge_crossings.ccm:a18t:
))In file included from 
,../src/s2/s2edge_crossings.h      
:|       47                                      ^| :

          ^In file included from 
../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/flags/flag.h241::4222:
:In file included from  /usr/local/clang/include/absl/flags/internal/flag.h:note: 30:
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/call_once.h:111:40  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e111  | avbosild_ nLoonwnLuelvle l_CNaolnlnOunlcle
(      a| b                     ^s
l::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2latlng.ccn:o18n:
nIn file included from u../src/s2/s2latlng.hl:l32 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uintIn file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(In file included from cs2/s2lax_loop_shape.cco:n18s:
tIn file included from  ../src/s2/s2lax_loop_shape.hC:o41n:
dIn file included from i../src/s2/s2loop.ht:i34o:
nIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l73l:
 In file included from c/usr/local/clang/include/absl/strings/cord.h): 82{:

In file included from       /usr/local/clang/include/absl/crc/internal/crc_cord_state.h| :                                                   ^23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:/usr/local/clang/include/absl/base/nullability.h32::
241In file included from :/usr/local/clang/include/absl/strings/str_format.h22::84 :
note: /usr/local/clang/include/absl/strings/internal/str_format/bind.hexpanded from macro 'absl_nonnull':
143:11  :241  | warning: #'enable_if' is a clang extension [-Wgcc-compat]d
efin  e143  | a b s l _ n o n n u leln a_bNloen_niufl(ls
t      r| _                     ^f
ormat_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54:/usr/local/clang/include/absl/strings/internal/str_format/bind.h :149warning: :22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: 'enable_if' is a clang extension [-Wgcc-compat]
 1221 | bo  o149l |   C o n d i t_i_oant:t:rCiabsuttAen_d_C(a(lelnFaubnlcet_iiofn((sctorn_sfto rCmoantd_iitnitoenr*n aalb:s:lE_nnsounrneuCloln sct)e x{p
r      (| s                                                     ^)
,
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | /usr/local/clang/include/absl/strings/internal/str_format/bind.h                     ^:
158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad foIn file included from rs2/s2latlng.ccm:a18t:
 In file included from t../src/s2/s2latlng.hr:a32p:
"In file included from )../src/s2/s1angle.h):)28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 /usr/local/clang/include/absl/strings/internal/str_format/bind.h1230: | 162 : 22 :  bwarning: o'enable_if' is a clang extension [-Wgcc-compat]o
l (*  a162b | s l _ n o n n_u_lalt tfruinbcu)t(eT_*_ (a(besnla_bnluel_liafb(iVlailtiyd_FuonrkmnaotwInm)p,l
<      A| r           ^g
s../usr/local/clang/include/absl/base/nullability.h.:>241(:s22):,  note: "expanded from macro 'absl_nonnull'b
ad   241f | o#rdmeafti nter aapb"s)l)_)n
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_ non_nNuullll _CuonnstpreocliWfoiredd(

            | |                                  ^                              ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2latlng.ccs:l18_:
nIn file included from o../src/s2/s2latlng.hn:n32u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94In file included from :
s2/s2edge_crossings.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h18::
31In file included from :
../src/s2/s2edge_crossings.h:/usr/local/clang/include/absl/synchronization/mutex.h47::
1231In file included from :../src/s2/s2predicates.h8::55 :
In file included from warning: /usr/local/clang/include/absl/flags/flag.h:type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]42
:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h: 301231:
 | /usr/local/clang/include/absl/base/call_once.h : 195 : 16T:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl  _195n | u l l a boinlciet_yf_luangk*n oawbns la_rngo)n
n      u| l       ^l
 fl/usr/local/clang/include/absl/base/nullability.ha:g289): 34{:
       | note:                ^expanded from macro 'absl_nullability_unknown'

/usr/local/clang/include/absl/base/nullability.h:  241289: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fniunlel aabbislli_tnyo_nunnuklnlo w_nN o_nNnuullll_
u      n| s                     ^p
ecified
      |                                  ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LoIn file included from ws2/s2latlng.ccL:e18v:
eIn file included from l../src/s2/s2latlng.hC:a32l:
lIn file included from O../src/s2/s1angle.hn:c28e:
(In file included from a../src/s2/s2point.hb:s27l:
:In file included from :../src/s2/s2coder.ho:n23c:
eIn file included from _/usr/local/clang/include/absl/status/status.hf:l67a:
gIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hf:l1241a:g12,:  Cwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab l1241e | & &   f nb,o
o      l|                                         ^(
*a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241f | u#ndce)f(iTn*e  aabbssll__nnuolnlnaublill i_tNyo_nunnuklnlo
w      n| )                     ^,

      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2lax_loop_shape.cc :_18N:
oIn file included from n../src/s2/s2lax_loop_shape.hn:u41l:
lIn file included from 
../src/s2/s2loop.h      :| 34                     ^:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2latlng.cc  :15518 | :
 In file included from  ../src/s2/s2latlng.he:x32p:
lIn file included from i../src/s2/s1angle.hc:i28t:
 In file included from F../src/s2/s2point.ho:r27m:
aIn file included from t../src/s2/s2coder.hC:o23u:
nIn file included from t/usr/local/clang/include/absl/status/status.hC:a67p:
tIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hr:e29(:
iIn file included from n/usr/local/clang/include/absl/strings/cord.ht:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n1293n:u33l:l  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 : p _1293( | pv)o i{d} 
R      e| g                                   ^i
ste/usr/local/clang/include/absl/base/nullability.hr:M241u:t22e:x Tnote: rexpanded from macro 'absl_nonnull'a
ce  r241( | v#odiedf i(n*ea bsl_anbosnln_unloln nfunl)l( c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2lax_loop_shape.cce:f18i:
nIn file included from e../src/s2/s2lax_loop_shape.h :a41b:
sIn file included from l../src/s2/s2loop.h_:n34o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from _/usr/local/clang/include/absl/container/btree_map.hN:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                     ^:
82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23In file included from :
s2/s2latlng.ccIn file included from :/usr/local/clang/include/absl/crc/crc32c.h18::
32In file included from :
../src/s2/s2latlng.h:/usr/local/clang/include/absl/strings/str_format.h32::
164In file included from :../src/s2/s1angle.h8::28 :
In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s2coder.h  :16423 | :
 In file included from  /usr/local/clang/include/absl/status/status.hi:n67t:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
U/usr/local/clang/include/absl/synchronization/mutex.hn:u1293s:e62d:( )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{
 r e1293t | uvroni dp _R;e g}i
s      t| e       ^r
Mu/usr/local/clang/include/absl/base/nullability.ht:e241x:T22r:a cnote: eexpanded from macro 'absl_nonnull'r
(v  o241i | d# d(e*faibnsel _anbosnln_unloln nfunl)l( c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull msg,
      | In file included from                                                              ^s2/s2lax_loop_shape.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2lax_loop_shape.h241::4122:
:In file included from  ../src/s2/s2loop.h:note: 34expanded from macro 'absl_nonnull':

In file included from ../src/s2/mutable_s2shape_index.h:  30241:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e66f:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.he: 73a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_82n:
oIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/crc/crc32c.h_:N32o:
n/usr/local/clang/include/absl/strings/str_format.hn:u165l:l8
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  165 |   inIn file included from ts2/s2latlng.cc*: 18a:
bIn file included from s../src/s2/s2latlng.hl:_32n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hp:_27;:

In file included from       ../src/s2/s2coder.h| :       ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i1294n:e62 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non n1294u | l l   _ N o n n u l l 
        |                       ^ 
                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | voiIn file included from ds2/s2lax_loop_shape.cc :R18e:
gIn file included from i../src/s2/s2lax_loop_shape.hs:t41e:
rIn file included from C../src/s2/s2loop.ho:n34d:
VIn file included from a../src/s2/mutable_s2shape_index.hr:T30r:
aIn file included from c/usr/local/clang/include/absl/container/btree_map.he:r66(:
vIn file included from o/usr/local/clang/include/absl/container/internal/btree.hi:d73 :
(In file included from */usr/local/clang/include/absl/strings/cord.ha:b82s:
lIn file included from _/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/crc/crc32c.hl:l32 :
f/usr/local/clang/include/absl/strings/str_format.hn:)380(:
43      :|                                    ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22  :380  | note: sexpanded from macro 'absl_nonnull't
d:  :241s | t#rdienfgi&n eS tarbAsplp_ennodnFnourlmla t_(Nsotndn:u:lslt
r      i| n                     ^g
* abIn file included from ss2/s2latlng.ccl:_18n:
oIn file included from n../src/s2/s2latlng.hn:u32l:
lIn file included from  ../src/s2/s1angle.hd:s28t:
,In file included from 
../src/s2/s2point.h      :| 27                                          ^:

In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
In file included from /usr/local/clang/include/absl/strings/cord.h  :24194 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.he:f31:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e1310 :a17b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn u1310l | l   _ N ocnonnusltl 
c      h| a                     ^r
* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnullIn file included from  s2/s2lax_loop_shape.ccm:s18g:
,In file included from  ../src/s2/s2lax_loop_shape.hc:o41n:
sIn file included from t../src/s2/s2loop.h :v34o:
iIn file included from d../src/s2/mutable_s2shape_index.h*: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_66n:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hn:u73l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hc:v82):
)In file included from ;/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:      23| :
                                              ^In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/strings/str_format.h::22440:: 24:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #d  e440f | iinnet  aFbPsrli_nntoFn(nsutldl: :_FNIoLnEn*u lalb
s      l| _                     ^n
onnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2edge_crossings.cc:18:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2latlng.ccl:
18      :
| In file included from                      ^../src/s2/s2latlng.h
:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                In file included from  s2/s2edge_crossings.cc :C18o:
rIn file included from d../src/s2/s2edge_crossings.hR:e47p:
*In file included from  ../src/s2/s2predicates.ha:b55s:
l/usr/local/clang/include/absl/flags/flag.h_:n118u:l29l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 rep  )118; | 
v      o| i                                          ^d
 Se/usr/local/clang/include/absl/base/nullability.ht:F257l:a23g:( anote: bexpanded from macro 'absl_nullable's
l:  :257F | l#adge<fTi>n*e  aabbssll__nnounlnlualbll ef l_aNgu,l lcaobnlset
       V| &                      ^ 
v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2latlng.ccd:e18f:
iIn file included from n../src/s2/s2latlng.he: 32a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :562s2/s2latlng.cc::2318::
 In file included from ../src/s2/s2latlng.hwarning: :32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:  27562:
 | In file included from  ../src/s2/s2coder.h :v23o:
iIn file included from d /usr/local/clang/include/absl/status/status.hL:o67c:
kIn file included from S/usr/local/clang/include/absl/status/internal/status_internal.hl:o29w:
(M/usr/local/clang/include/absl/strings/cord.hu:H1222o:w52 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nonn u1222l | li nhloiwn,e  cvoonisdt  CCoorndd:i:tIinolni*n eaRbespl:_:nSuwlalpa(bCloer dc:o:nIdn,l
i      n| e                      ^R
ep* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nnuexpanded from macro 'absl_nonnull'l
l   r241h | s#)d e{f
i      n| e                                                   ^ 
absl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
In file included from       s2/s2latlng_rect.cc| :                     ^18
:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2/s2latlng.cc:18  :
257In file included from  | ../src/s2/s2latlng.h#:d32e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/status/status.he: 67_:
NIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
b/usr/local/clang/include/absl/strings/cord.hl:e1230
:      20| :                      ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable CIn file included from os2/s2latlng_rect.ccr:d18::
:In file included from I../src/s2/s2latlng_rect.hn:l30i:
nIn file included from In file included from e../src/s2/s1angle.hs2/s2lax_loop_shape.ccR::e28p18:
::
In file included from :In file included from ../src/s2/s2point.hd../src/s2/s2lax_loop_shape.h:a:27t41:
a:
In file included from (In file included from ../src/s2/s2coder.h)../src/s2/s2loop.h: :23c34:
o:
In file included from nIn file included from /usr/local/clang/include/absl/status/status.hs:../src/s2/mutable_s2shape_index.ht67: :
30{In file included from :

/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from       :/usr/local/clang/include/absl/container/btree_map.h| 29:                   ^:
66
In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h94:::
25773In file included from ::
/usr/local/clang/include/absl/strings/internal/cordz_info.h23In file included from ::/usr/local/clang/include/absl/strings/cord.h31 ::
94note: :
/usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nullable'In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h565::  3136257:
: |  /usr/local/clang/include/absl/synchronization/mutex.h#:warning: d489type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e:
f14i:n   e565warning:   | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a 
b svlo_i  nd489u  | lU ln al bo lc e k vSo_liNoduw l((lS*ayabnblcselh_
Wn      au| il                      ^tlP
aabrlaem si*n vaabrsila_nntu)l(lvaobilde*  waabistlp_)n uAlBlSaLb_iAlTiTtRyI_BuUnTkEn_oCwOnL)D,;

      In file included from       | s2/s2latlng.cc|              ^:                                   ^
18
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h:../src/s2/s2latlng.h:257:257:32:23:
23:In file included from : ../src/s2/s1angle.h :note: 28note: expanded from macro 'absl_nullable':
expanded from macro 'absl_nullable'
In file included from 
../src/s2/s2point.h  :25727   | :
257#In file included from  | d../src/s2/s2coder.he#:fd23ei:
nfIn file included from ei/usr/local/clang/include/absl/status/status.h n:ea67 b:
asIn file included from bl/usr/local/clang/include/absl/status/internal/status_internal.hs_:ln29_u:
ln/usr/local/clang/include/absl/strings/cord.hul:la1234lb:al20be:l  e_warning:  Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_u
Nlullal ba1234lb | eli
en      
l|       i                      ^| n
                      ^e
 const chIn file included from as2/s2lax_loop_shape.ccr:*18 :
aIn file included from b../src/s2/s2lax_loop_shape.hs:l41_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :C30o:
rIn file included from d/usr/local/clang/include/absl/container/btree_map.h:::66I:
nIn file included from l/usr/local/clang/include/absl/container/internal/btree.hi:n73e:
RIn file included from e/usr/local/clang/include/absl/strings/cord.hp::94::
aIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.h_:c31h:
a/usr/local/clang/include/absl/synchronization/mutex.hr:s489In file included from (:s2/s2latlng_rect.cc)45: :18c :
oIn file included from warning: n../src/s2/s2latlng_rect.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s:
t30 :
{In file included from   
../src/s2/s1angle.h489      : | | 28                    ^:
 
In file included from  ../src/s2/s2point.h /usr/local/clang/include/absl/base/nullability.h: :27 241:
v:In file included from o22../src/s2/s2coder.hi::d 23 :
note: (In file included from expanded from macro 'absl_nonnull'*/usr/local/clang/include/absl/status/status.h
a:b  67s241l:
 | _In file included from #n/usr/local/clang/include/absl/status/internal/status_internal.hdu:el29fl:
iaIn file included from nb/usr/local/clang/include/absl/strings/cord.hel: e94a :
biIn file included from sn/usr/local/clang/include/absl/strings/internal/cordz_info.hlv:_a31nr:
oi/usr/local/clang/include/absl/synchronization/mutex.hna:nn576ut:l)49l(: v _owarning: Nitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]od
n*n ua  lb576ls | 
l       _ | nvu                     ^ol
ilda bTirlyiRteym_ouvnek(nboawsne)_,i
n      t| e                                            ^r
na/usr/local/clang/include/absl/base/nullability.hl::289::P34e:r Tnote: hexpanded from macro 'absl_nullability_unknown'r
ead  S289y | n#cdhe*f ianbes la_bnsoIn file included from lns2/s2latlng.cc_n:nu18ull:
llIn file included from  a../src/s2/s2latlng.hsb:)i32;l:
i
In file included from t      ../src/s2/s1angle.hy| :_                                                ^28u
:
nIn file included from k/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.hn::o241w27n::
 22In file included from _:../src/s2/s2coder.hN :u23note: l:
expanded from macro 'absl_nonnull'lIn file included from 
_/usr/local/clang/include/absl/status/status.hu:n  67s241:
p | In file included from e#/usr/local/clang/include/absl/status/internal/status_internal.hcd:ie29ff:
ii/usr/local/clang/include/absl/strings/cord.hen:ed1239 
:a      38b| :s                                 ^ l
warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu l1239l |  i_nNloinnneu lIn file included from als2/s2lax_loop_shape.ccb
s:      l18| ::
                     ^:In file included from 
c../src/s2/s2lax_loop_shape.ho:r41d:
_In file included from i../src/s2/s2loop.hn:t34e:
rIn file included from n../src/s2/mutable_s2shape_index.ha:l30::
:In file included from C/usr/local/clang/include/absl/container/btree_map.hoIn file included from :rs2/s2latlng_rect.cc66d:R:
18eIn file included from :
p/usr/local/clang/include/absl/container/internal/btree.hIn file included from *:../src/s2/s2latlng_rect.h 73a::
b30In file included from s:
/usr/local/clang/include/absl/strings/cord.hlIn file included from :_../src/s2/s1angle.h94n::
o28In file included from n:
/usr/local/clang/include/absl/strings/internal/cordz_info.hnIn file included from :u../src/s2/s2point.h31l::
l27/usr/local/clang/include/absl/synchronization/mutex.h :
:CIn file included from o490r../src/s2/s2coder.h:d:13:23:::
 IIn file included from warning: n/usr/local/clang/include/absl/status/status.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l:
i67n:
eIn file included from   R/usr/local/clang/include/absl/status/internal/status_internal.he:p29490::
: | In file included from  a/usr/local/clang/include/absl/strings/cord.h s: _94 t:
 rIn file included from  e/usr/local/clang/include/absl/strings/internal/cordz_info.hev:(o31i):
d
/usr/local/clang/include/absl/synchronization/mutex.h*      : | 578a                                     ^b:
s45l:/usr/local/clang/include/absl/base/nullability.h_ :n241uwarning: :ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22l
:a bnote: i  expanded from macro 'absl_nonnull'l578
i | t   y241_  | uv#nodikednfo iwBnlneo  caakrb(gs)bl;a
_s      ne| o_            ^ni
nnut/usr/local/clang/include/absl/base/nullability.hle:lr289 n:_a34Nl:o: n:note: nPexpanded from macro 'absl_nullability_unknown'ue
lrlT  
h289      r | | e#                     ^ad
deSfyinnceh *a basbls_ln_unlolnanbuillli tsy)_;u
n      k| n                                            ^o
wn/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l _note: uexpanded from macro 'absl_nonnull'n
sp  e241c | iIn file included from #fs2/s2latlng.ccdi:ee18df
:
i      nIn file included from | e                                 ^../src/s2/s2latlng.h 
:a32b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
In file included from nIn file included from s2/s2lax_loop_shape.ccu/usr/local/clang/include/absl/status/status.h:l:18l67:

:
In file included from       In file included from ../src/s2/s2lax_loop_shape.h| /usr/local/clang/include/absl/status/internal/status_internal.h:                     ^:41
29:
:
In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/strings/cord.h::341245:
:In file included from 38../src/s2/mutable_s2shape_index.h:: 30:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h: In file included from 731245s2/s2latlng_rect.cc:
 | :In file included from i18/usr/local/clang/include/absl/strings/cord.hn:
:lIn file included from 94i../src/s2/s2latlng_rect.hn:
:eIn file included from 30 /usr/local/clang/include/absl/strings/internal/cordz_info.h:
a:In file included from b31../src/s2/s1angle.hs:
l:/usr/local/clang/include/absl/synchronization/mutex.h:28:::
c499In file included from o:../src/s2/s2point.hr35:d:27_ :
iIn file included from warning: n../src/s2/s2coder.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t:
e23r:
nIn file included from a  /usr/local/clang/include/absl/status/status.hl499:: | 67: :
C In file included from vo/usr/local/clang/include/absl/status/internal/status_internal.hor:id29dR:
 eIn file included from Ep/usr/local/clang/include/absl/strings/cord.hn*:a 94ba:
lbIn file included from se/usr/local/clang/include/absl/strings/internal/cordz_info.hlD:e_b31un:
gu/usr/local/clang/include/absl/synchronization/mutex.hLl:ol580ga:(b34clo:en  swarning: tCtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] o
crhda  :r580:* | I  an blbsialns_eenRu_elipln:ta:ebtrlrneea eln(:a):m
Pe      )e| r;                                     ^T

h      r| /usr/local/clang/include/absl/base/nullability.he                                  ^:a
d257S:/usr/local/clang/include/absl/base/nullability.hy23:n:257c :h23note: *:expanded from macro 'absl_nullable'  
anote: bexpanded from macro 'absl_nullable'  s
257l | _  #n257du | el#fldiaenbfeli ena ebW saalkb_esnulup_l(nl
ua      lbl| la                                 ^eb
 l_e/usr/local/clang/include/absl/base/nullability.hN :u_257lN:lu23al:bl lanote: ebexpanded from macro 'absl_nullable'
l
      e| 
                      ^        
257|  |                       ^#
define absl_nullable _NullablIn file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2latlng.cc559: | 18 :
 In file included from  ../src/s2/s2latlng.h : 32 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
s/usr/local/clang/include/absl/strings/cord.ht: 1258C:o36n:d iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
on*  a1258b | siln_lniunlel acbolred _cionntde,r
n      a| l                                             ^:
:C/usr/local/clang/include/absl/base/nullability.ho:r257d:R23e:p Fnote: lexpanded from macro 'absl_nullable'a
t*   257a | b#sdle_fnionnen ualbls
l      _| n                                   ^u
lla/usr/local/clang/include/absl/base/nullability.hb:l241e: 22_:N unote: lexpanded from macro 'absl_nonnull'l
ab  l241e | 
#      d| e                      ^f
ine absl_nonnull _NonnulIn file included from ls2/s2lax_loop_shape.cc
:      18| :
                     ^In file included from 
../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:In file included from 41s2/s2latlng.cc:
:In file included from 18../src/s2/s2loop.h:
:In file included from 34../src/s2/s2latlng.h:
:In file included from 32../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/synchronization/mutex.h29::
562:/usr/local/clang/include/absl/strings/cord.h58::1268 :51warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |    1268v | oiindl iLnoec kvSoliodw (CMourHdo:w: Ianblsiln_enRoenpn:u:lElm phloawc,e Tcroenes(tC oCrodnRdeipt*i oanb*s la_bnsoln_nnuullll arbelpe, 
c      o| n                                                  ^d
,
      /usr/local/clang/include/absl/base/nullability.h| :                                                         ^241
:22:/usr/local/clang/include/absl/base/nullability.h :note: 257expanded from macro 'absl_nonnull':
23:   241note:  | expanded from macro 'absl_nullable'#
de  f257i | n#ed eafbisnle_ naobnsnlu_lnlu l_lNaobnlneu l_lN
u      l| l                     ^a
ble
      |                       ^
e
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from In file included from s2/s2latlng_rect.cc../src/s2/s2lax_loop_shape.h::1841:
:
In file included from In file included from ../src/s2/s2latlng_rect.h../src/s2/s2loop.h::3034:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/mutable_s2shape_index.h::2830:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/btree_map.h::2766:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree.h::2373:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/cord.h::6794:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2931:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/synchronization/mutex.h::94565:
:In file included from In file included from 36/usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2latlng.cc::: 3118:
warning: :
/usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from :
../src/s2/s2latlng.h581::3238:
:  In file included from  565../src/s2/s1angle.h | warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28 
:
vIn file included from o../src/s2/s2point.hi  :d58127  | :
U In file included from n ../src/s2/s2coder.hl :o 23c :
k In file included from Sbl/usr/local/clang/include/absl/status/status.hao:sw67e(_S:
iyIn file included from nn/usr/local/clang/include/absl/status/internal/status_internal.hct:he29Wr:
an/usr/local/clang/include/absl/strings/cord.hai:lt1275:P::a51Pr:ea rmwarning: sTtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*h
 raebas ld1275_Sn | yuinlncllhaib*nl eea  bvwsoalii_dtnp )oC noAnrBudSl:Ll:_ AIwTn)Tl;Ri
In      Be| UR                                     ^Te
Ep_:C:/usr/local/clang/include/absl/base/nullability.hOE:Lm241Dp:;l22a
:c       e| note: T                                   ^expanded from macro 'absl_nonnull'r

ee/usr/local/clang/include/absl/base/nullability.h  (:241C257 | o:#r23dd:eR fenote: ipexpanded from macro 'absl_nullable'n*
e    aa257bb | ss#lld__ennfooinnnnenu ulalbl sll__ Nnrouenlpnlu,al
bl      
l| e                                                        ^ | 
_                     ^N
/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #define absl_nonnull _In file included from Ns2/s2latlng_rect.cco:n18n:
uIn file included from l../src/s2/s2latlng_rect.hl:
30      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 585s2/s2lax_loop_shape.cc::2018::
 In file included from ../src/s2/s2lax_loop_shape.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]41
:
In file included from ../src/s2/s2loop.h:34  :
585In file included from  | ../src/s2/mutable_s2shape_index.h : 30v:
oIn file included from i/usr/local/clang/include/absl/container/btree_map.hd: 66T:
rIn file included from a/usr/local/clang/include/absl/container/internal/btree.hn:s73(:
MIn file included from u/usr/local/clang/include/absl/strings/cord.hH:o94w:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o576n:n49u:l lIn file included from warning:  s2/s2latlng.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h:
o18w:
)In file included from   ;../src/s2/s2latlng.h576 : |  32 /:
 /In file included from v ../src/s2/s1angle.hou:si28de:
 dIn file included from T r../src/s2/s2point.hfy:oR27re:
m oIn file included from vCe../src/s2/s2coder.h(o:bna23ds:
VeIn file included from _a/usr/local/clang/include/absl/status/status.hirn:-t67>e:
MrIn file included from nu/usr/local/clang/include/absl/status/internal/status_internal.hatl::e29:x:
P /usr/local/clang/include/absl/strings/cord.het:rr1282Ta:hn47rs:ef aewarning: drtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S

y      n| c                   ^h *
 1282a | /usr/local/clang/include/absl/base/nullability.hbi:sn241ll:_i22nn:oe n note: nvexpanded from macro 'absl_nonnull'uo
lild    241sC | o)#r;dde
:f      :i| In                                                ^ne
l ia/usr/local/clang/include/absl/base/nullability.hnb:es241Rl:e_22pn::o :nnote: Snexpanded from macro 'absl_nonnull'eu
tlTl  r 241e_ | eN#(doCenfonirundleRl ea
pb      *s|                       ^la_
nbosnln_unloln n_uNloln nruelpl,

      In file included from       | s2/s2latlng_rect.cc|                      ^:                                              ^
18
:
In file included from ../src/s2/s2latlng_rect.h/usr/local/clang/include/absl/base/nullability.h::30241:
:In file included from 22../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2point.h
:27:
  In file included from 241../src/s2/s2coder.h | :#23In file included from d:
s2/s2lax_loop_shape.cceIn file included from :f/usr/local/clang/include/absl/status/status.h18i::
n67eIn file included from :
 ../src/s2/s2lax_loop_shape.hIn file included from a:b/usr/local/clang/include/absl/status/internal/status_internal.hs41:l:
29_In file included from :
n../src/s2/s2loop.hIn file included from o:/usr/local/clang/include/absl/strings/cord.hn34:n:
94uIn file included from :
l../src/s2/mutable_s2shape_index.hIn file included from l:/usr/local/clang/include/absl/strings/internal/cordz_info.h 30:_:
31NIn file included from :
o/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/synchronization/mutex.hn::n66586u:
:lIn file included from 43l/usr/local/clang/include/absl/container/internal/btree.h:
:       73| warning: :
                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 

/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h586: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hv:o578i:d45 :F ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
bas  e578_ | i n tveorinda lB:l:oPcekr(Tbharseea_diSnytnecrhn*a la:b:sPle_rnTohnrneualdlS
y      In file included from n| s2/s2latlng.ccc                                          ^:h
18*:
 /usr/local/clang/include/absl/base/nullability.hIn file included from a:../src/s2/s2latlng.hb241:s:32l22_:
:nIn file included from o n../src/s2/s1angle.hnote: n:expanded from macro 'absl_nonnull'u28l
:
lIn file included from    ../src/s2/s2point.h241s:) | ;27#
:
d      In file included from e| ../src/s2/s2coder.hf                                            ^:i
23n:
e/usr/local/clang/include/absl/base/nullability.hIn file included from  :/usr/local/clang/include/absl/status/status.ha241:b:67s22:
l:In file included from _ /usr/local/clang/include/absl/status/internal/status_internal.hn:note: o29expanded from macro 'absl_nonnull'n:

n/usr/local/clang/include/absl/strings/cord.hu:  l1290241l:  | 54_#:Nd eowarning: fntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]in
nuel la b
1290s       | l| i_                     ^nn
loinnneu lvlo i_dN oCnonrudl:l:In file included from 
Is2/s2latlng_rect.cc      n:| l                     ^18i
:
nIn file included from e../src/s2/s2latlng_rect.hR:e30p:
:In file included from :../src/s2/s1angle.hS:e28t:
TIn file included from r../src/s2/s2point.he:In file included from e27s2/s2lax_loop_shape.ccO:
:rIn file included from 18E../src/s2/s2coder.h:
m:In file included from p23../src/s2/s2lax_loop_shape.ht:
:yIn file included from 41(/usr/local/clang/include/absl/status/status.h:
C:In file included from o67r../src/s2/s2loop.h:
d:In file included from R34/usr/local/clang/include/absl/status/internal/status_internal.he:
:pIn file included from *29../src/s2/mutable_s2shape_index.h :
:aIn file included from b30/usr/local/clang/include/absl/strings/cord.hs:
l:In file included from _94/usr/local/clang/include/absl/container/btree_map.hn:
:uIn file included from 66l/usr/local/clang/include/absl/strings/internal/cordz_info.h:
l:aIn file included from 31b/usr/local/clang/include/absl/container/internal/btree.h:
l:/usr/local/clang/include/absl/synchronization/mutex.he73: :
590rIn file included from :e/usr/local/clang/include/absl/strings/cord.h40p::,94 
:
      warning: In file included from | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h                                                     ^
:
31:
  /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h590:: | 580257 :: 3423e::x  pwarning: note: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'i

ci    t257 580 | M | #u dt ebeafxis(ec_oinnstte rvnoalla:t:iPleer TMhurteeaxd*S yanbcshl*_ naublslla_bnluel l/a*bilgen oWraekde*u/p)( 
{      }| 
                                 ^      
|                                        ^/usr/local/clang/include/absl/base/nullability.h
:257:/usr/local/clang/include/absl/base/nullability.h23::257 :23note: :expanded from macro 'absl_nullable' 
note: expanded from macro 'absl_nullable'  
257 |   #257d | e#fdienfei naeb salb_snlu_lnlualbllaeb l_eN u_lNlualbllaeb
l      e| 
                      ^      
|                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      | n                            ^
e/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# d_eNfuilnlea balbes
l      _| n                      ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTIn file included from Es2/s2latlng.cc_:C18A:
PIn file included from T../src/s2/s2latlng.hU:R32E:
DIn file included from _../src/s2/s1angle.hB:Y28(:
tIn file included from h../src/s2/s2point.hi:s27):
,In file included from 
../src/s2/s2coder.h      :| 23                                                                   ^~~~:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::I/usr/local/clang/include/absl/synchronization/mutex.hn:l649i:n29e:R ewarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:Com  m649i | t T reexep(lciocnistt  MCuotredxRLeopc*k (aMbustle_xn*u lalbasbll_en oonlndu_lrle pm,u
,       | c                                                       ^o
nst /usr/local/clang/include/absl/base/nullability.hC:o257n:d23i:t inote: oexpanded from macro 'absl_nullable'n
&   c257o | n#dd)e
f      i| n                            ^e
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le _N  u241l | l#adbelfei
n      e|                        ^a
bsl_nonnull _In file included from Ns2/s2latlng.cco:n18n:
uIn file included from l../src/s2/s2latlng.hl:
32      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internalIn file included from :s2/s2lax_loop_shape.cc::C18o:
rIn file included from d../src/s2/s2lax_loop_shape.hR:e41p:
*In file included from  ../src/s2/s2loop.ha:b34s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.hb:l66:
eIn file included from  /usr/local/clang/include/absl/container/internal/btree.hC:o73In file included from r:
s2/s2latlng_rect.ccdIn file included from ::/usr/local/clang/include/absl/strings/cord.h18:::
I94In file included from n:
../src/s2/s2latlng_rect.hlIn file included from :i/usr/local/clang/include/absl/strings/internal/cordz_info.h30n::
e31In file included from R:
../src/s2/s1angle.he:p/usr/local/clang/include/absl/synchronization/mutex.h28:::
:670In file included from c:../src/s2/s2point.hl74:e:27a :
rIn file included from (warning: ../src/s2/s2coder.h)'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]: 
23{:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                       ^67670
:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h ::e29257x:
p:In file included from l23/usr/local/clang/include/absl/strings/cord.hi::c 94i:
note: tIn file included from expanded from macro 'absl_nullable' /usr/local/clang/include/absl/strings/internal/cordz_info.h
R:e  31a257d:
 | e#/usr/local/clang/include/absl/synchronization/mutex.hrdM:eu624ft:ie68xnL:oe c kwarning: a('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]Mbu
stle_xn&u   l624ml | ua  b AleBexS pL_l_NiIuNclTiltEa RbMNluAetL
e_      xA| TL                      ^To
cRkI(BMUuTtEe_xC&A PmTuU RAEBDS_LB_YI(NtThEiRsN)A)L
_      A| T                                                                         ^~~~T
RIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mute/usr/local/clang/include/absl/synchronization/mutex.hIn file included from x:s2/s2latlng.cc*635: :18a29:
b:In file included from s ../src/s2/s2latlng.hl:warning: _32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:

oIn file included from n../src/s2/s1angle.hn:u  28l635:
l | In file included from   ../src/s2/s2point.hm :ue27x):
 pIn file included from Al../src/s2/s2coder.hBi:Sc23iL:
t_In file included from S /usr/local/clang/include/absl/status/status.hHM:Au67Rt:
eEIn file included from xD/usr/local/clang/include/absl/status/internal/status_internal.hL_:oL29Oc:
kC/usr/local/clang/include/absl/strings/cord.hK(:_M1321Fu:Ut48eN:Cx T*warning:  Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aO
bNs(lm_u n)1321o
 | n      in| nu                                  ^ll
iln em/usr/local/clang/include/absl/base/nullability.h u:v)241o :iA22dB: S CLnote: o_expanded from macro 'absl_nonnull'rE
dX:C  :L241IU | nS#lIdiVenEfe_iRLneOepC :Ka:_bCFsoUlpN_yCnTTooInAOnrNur(lamylu ()_cN
ho      an| rn                            ^u*
l la
b      s/usr/local/clang/include/absl/base/nullability.h| l:                     ^_241
n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 d  s241t | )# dceofnisnte  {a
b      s| l                                               ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 In file included from :_s2/s2lax_loop_shape.ccN o:note: n18expanded from macro 'absl_nonnull'n:

uIn file included from l  ../src/s2/s2lax_loop_shape.hl241
: |       41#| :
d                     ^In file included from e
../src/s2/s2loop.hf:i34n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h  :68128 | :
 In file included from  ../src/s2/s2point.he:x27p:
lIn file included from i../src/s2/s2coder.hc:i23t:
 In file included from R/usr/local/clang/include/absl/status/status.he:a67d:
eIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hM:u29t:
eIn file included from x/usr/local/clang/include/absl/strings/cord.hL:o94c:
kIn file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.hM:u31t:
e/usr/local/clang/include/absl/synchronization/mutex.hx:&641 :m68u:  Awarning: B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]S
L_INT  E641R | N A Le_xApTlTiRcIiBtU TMEu_tCeAxPLToUcRkE(DM_uBtYe(xt&h imsu) ,A
B      S| L                                                                         ^~~~_
INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~/usr/local/clang/include/absl/synchronization/mutex.h
:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock/usr/local/clang/include/absl/synchronization/mutex.h(:M649u:t29e:x *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n649o | n n uelxlp lmiuc,i tc oMnustte xCLooncdki(tMiuotne&x *c oanbds)l
_      n| o                                  ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241m:u22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241C | o#nddeiftiinoen &a bcsoln_dn)o
n      n| u                            ^l
l _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: In file included from warning: s2/s2latlng_rect.cc:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]18
:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from   ../src/s2/s1angle.h710: | 28 :
 In file included from e../src/s2/s2point.hx:p27l:
iIn file included from c../src/s2/s2coder.hi:t23 :
WIn file included from r/usr/local/clang/include/absl/status/status.hi:t67e:
rIn file included from M/usr/local/clang/include/absl/status/internal/status_internal.hu:t29e:
xIn file included from L/usr/local/clang/include/absl/strings/cord.ho:c94k:
(In file included from M/usr/local/clang/include/absl/strings/internal/cordz_info.hu:t31e:
x/usr/local/clang/include/absl/synchronization/mutex.h&: 670m:u74 :A Bwarning: S'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
_INTE  R670N | A L _eAxTpTlRiIcBiUtT ER_eCaAdPeTrUMRuEtDe_xBLYo(ctkh(iMsu)t)e
x      &|                                                                           ^~~~m
u ABSL_INTERNAL_ATTRIBUTE_CAPTURED_/usr/local/clang/include/absl/synchronization/mutex.hB:Y718(:t35h:i swarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |                                                                          ^~~~
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unsp/usr/local/clang/include/absl/synchronization/mutex.he:c678i:f35i:e dwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                 ^
  678 |   explicit ReaderMutexLoIn file included from cs2/s2lax_loop_shape.cck:(18M:
uIn file included from t../src/s2/s2lax_loop_shape.he:x41*:
 In file included from a../src/s2/s2loop.hb:s34l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 66m:
uIn file included from )/usr/local/clang/include/absl/container/internal/btree.h :A73B:
SIn file included from L/usr/local/clang/include/absl/strings/cord.h_:S94H:
AIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hE:D31_:
L/usr/local/clang/include/absl/synchronization/mutex.hO:C830K:_14F:U Nwarning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ION  (830m | u ) 
        |                                    ^ 
bool /usr/local/clang/include/absl/base/nullability.h(:*241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nnu  l241l |  #fduenfci)n(eT *a basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2latlng_rect.cc                     ^:
18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from In file included from s2/s2lax_loop_shape.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2lax_loop_shape.h../src/s2/s2point.h::4127:
:
In file included from In file included from ../src/s2/s2loop.h../src/s2/s2coder.h::3423:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/status/status.h::3067:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/status/internal/status_internal.h::6629:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/strings/cord.h::7394:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::9431:
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/synchronization/mutex.h::31681:
/usr/local/clang/include/absl/synchronization/mutex.h::74830:: 36:warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]warning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830   | 681  |      e x pbloiocli t( *Raebasdle_rnMountneuxlLlo cfku(nMcu)t(eTx*&  ambus lA_BnSuLl_lIaNbTiElRiNtAyL__uAnTkTnRoIwBnU)T,E
_      C| A                                   ^P
TU/usr/local/clang/include/absl/base/nullability.hR:E289D:_34B:Y (note: texpanded from macro 'absl_nullability_unknown'h
is)  ,289
 |       #| d                                                                         ^~~~e
fine absl_nullability_unknown _Null_unspecif/usr/local/clang/include/absl/synchronization/mutex.hi:e689d:
35      :|                                   ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutIn file included from es2/s2lax_loop_shape.ccx:L18o:
cIn file included from k../src/s2/s2lax_loop_shape.h(:M41u:
tIn file included from e../src/s2/s2loop.hx:*34 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l30_:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :m73u:
,In file included from  /usr/local/clang/include/absl/strings/cord.hc:o94n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h :C31o:
n/usr/local/clang/include/absl/synchronization/mutex.hd:i831t:i46o:n &warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]c
ond  )831
 |        |                                    ^ 
   /usr/local/clang/include/absl/base/nullability.ht:y241p:e22n:a mnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | :#:dteyfpien_ei daebnstli_tnyo<nTn>u:l:lt y_pNeo*n naublsll
_      n| u                     ^l
lability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       In file included from bs2/s2latlng_rect.cco:o18l:
 In file included from (../src/s2/s2latlng_rect.ha:b30s:
lIn file included from :../src/s2/s1angle.h::t28y:
pIn file included from e../src/s2/s2point.h_:i27d:
eIn file included from n../src/s2/s2coder.ht:i23t:
yIn file included from </usr/local/clang/include/absl/status/status.hT:>67::
:In file included from t/usr/local/clang/include/absl/status/internal/status_internal.hy:p29e:
:In file included from :/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n710u:l74l:  mwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
hod)()  )710; | 
        | e                                            ^x
pl/usr/local/clang/include/absl/base/nullability.hi:c241i:t22 :W rnote: iexpanded from macro 'absl_nonnull't
er  M241u | t#edxeLfoicnke( Maubtselx_&n omnun uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16/usr/local/clang/include/absl/synchronization/mutex.h:: 718:warning: 35type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]850
 |      718  |     ceoxnpslti cTi*t  aWbrsilt_enroMnuntuelxlL oocbkj(eMcutt,e
x      *|                 ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 m  u241) | 
#      d| e                                  ^f
ine/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      | In file included from                      ^s2/s2lax_loop_shape.cc
:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2latlng_rect.cc851: | 18 :
 In file included from  ../src/s2/s2latlng_rect.h : 30 :
bIn file included from o../src/s2/s1angle.ho:l28 :
(In file included from a../src/s2/s2point.hb:s27l:
:In file included from :../src/s2/s2coder.ht:y23p:
eIn file included from _/usr/local/clang/include/absl/status/status.hi:d67e:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hi:t29y:
<In file included from T/usr/local/clang/include/absl/strings/cord.h>::94::
tIn file included from y/usr/local/clang/include/absl/strings/internal/cordz_info.hp:e31::
:/usr/local/clang/include/absl/synchronization/mutex.h*: 722a:b74s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nnull   722m | e t heoxdp)l(i)c
i      t|                                              ^W
ri/usr/local/clang/include/absl/base/nullability.ht:e241r:M22u:t enote: xexpanded from macro 'absl_nonnull'L
oc  k241( | M#udteefxi&n em ua bAsBlS_Ln_oInNnTuElRlN A_LN_oAnTnTuRlIlB
U      T| E                     ^_
CAPTURED_BY(this),
      |                                                                          ^~~~
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/synchronization/mutex.h:  731855: | 35 :  ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
lici  t731  | C o nedxiptliiocni(tc oWnrsitt ebroMoult*e xaLbosclk_(nMountneuxl*l  acbosnld_)n;o
n      n| u                                 ^l
l /usr/local/clang/include/absl/base/nullability.hm:u241, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define a:bsl22_:n onnote: nexpanded from macro 'absl_nonnull'u
ll _N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_In file included from ns2/s2lax_loop_shape.cco:n18n:
uIn file included from l../src/s2/s2lax_loop_shape.hl: 41f:
uIn file included from n../src/s2/s2loop.hc:)34(:
vIn file included from o../src/s2/mutable_s2shape_index.hi:d30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l73l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hi:l94i:
tIn file included from y/usr/local/clang/include/absl/strings/internal/cordz_info.h_:u31n:
k/usr/local/clang/include/absl/synchronization/mutex.hn:o896w:n31):, 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                   ^

/usr/local/clang/include/absl/base/nullability.h  :896241 | : 22 :e xnote: pexpanded from macro 'absl_nonnull'l
ic  i241t |  #Cdoenfdiintei oanb(sclo_nnsotn nTu*l la b_sNlo_nnnounlnlu
l      l|                       ^o
bj)
      |                               ^In file included from 
s2/s2latlng_rect.cc:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2latlng_rect.h241::3022:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h:  27241:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h_:N31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u801l:l45
:       | warning:                      ^type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullabiIn file included from ls2/s2lax_loop_shape.cci:t18y:
_In file included from u../src/s2/s2lax_loop_shape.hn:k41n:
oIn file included from w../src/s2/s2loop.hn:)34,:

In file included from       ../src/s2/mutable_s2shape_index.h| :                                            ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66289:
:In file included from 34/usr/local/clang/include/absl/container/internal/btree.h:: 73:
note: In file included from expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 289/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
efin/usr/local/clang/include/absl/synchronization/mutex.he: 922a:b48s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
llab  i922l | i t ys_tuantkinco wbno o_lN uGlula_ruannstpeeecdiEfqiueadl
(      c| o                                 ^n
st Condition* In file included from as2/s2latlng_rect.ccb:s18l:
_In file included from n../src/s2/s2latlng_rect.hu:l30l:
aIn file included from b../src/s2/s1angle.hl:e28 :
aIn file included from ,../src/s2/s2point.h
:      27| :
                                               ^In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h257::6723:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94257:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e802 :a19b:s lwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
ull  a802b | l e   _ N u l l a b l e 
v      o| i                      ^d
* absl_nuIn file included from ls2/s2lax_loop_shape.ccl:a18b:
iIn file included from l../src/s2/s2lax_loop_shape.hi:t41y:
_In file included from u../src/s2/s2loop.hn:k34n:
oIn file included from w../src/s2/mutable_s2shape_index.hn: 30a:
rIn file included from g/usr/local/clang/include/absl/container/btree_map.h):;66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                  ^:
73:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::28994::
34In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31note: :
expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/synchronization/mutex.h
:923:48  :289  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n923e |   a b s l _ n u l l a b i l i t y _ u n k n o w n   _ N u l lc_ounnsstp eCcoinfdiietdi
o      n| *                                 ^ 
absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2latlng_rect.cc
:18:
  In file included from 257../src/s2/s2latlng_rect.h | :#30d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                      ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull funcIn file included from )s2/s2lax_loop_shape.cc(:T18*:
 In file included from a../src/s2/s2lax_loop_shape.hb:s41l:
_In file included from n../src/s2/s2loop.hu:l34l:
aIn file included from b../src/s2/mutable_s2shape_index.hi:l30i:
tIn file included from y/usr/local/clang/include/absl/container/btree_map.h_:u66n:
kIn file included from n/usr/local/clang/include/absl/container/internal/btree.ho:w73n:
)In file included from ,/usr/local/clang/include/absl/strings/cord.h
:      94| :
                   ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/synchronization/mutex.h::22948:: 10:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  241 | #  d948e | f i nbeo oalb s(l*_anbosnln_unlull l_aNbolnen uelvla
l      _| )                     ^(
const In file included from Cs2/s2latlng_rect.cco:n18d:
iIn file included from t../src/s2/s2latlng_rect.hi:o30n:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23):
 In file included from =/usr/local/clang/include/absl/status/status.h :n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hp:t29r:
;In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94         ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/base/nullability.h31::
257/usr/local/clang/include/absl/synchronization/mutex.h::23814:: 42:note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  257 | #  d814e | f i nCeo nadbistli_onnu(lbloaobll e( *_aNbuslll_anbolnen
u      l| l                      ^ 
func)(In file included from Ts2/s2lax_loop_shape.cc*: 18a:
bIn file included from s../src/s2/s2lax_loop_shape.hl:_41n:
uIn file included from l../src/s2/s2loop.hl:a34b:
iIn file included from l../src/s2/mutable_s2shape_index.hi:t30y:
_In file included from u/usr/local/clang/include/absl/container/btree_map.hn:k66n:
oIn file included from w/usr/local/clang/include/absl/container/internal/btree.hn:)73,:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                                         ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31289:
:/usr/local/clang/include/absl/synchronization/mutex.h34::948 :48note: :expanded from macro 'absl_nullability_unknown' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  289 | #  d948e | f i nbeo oalb s(l*_anbuslll_anbuillliatbyl_eu nekvnaolw_n) (_cNounlslt_ uCnosnpdeictiifoine*d 
a      b| s                                 ^l
_nonnull) = nullptr;In file included from 
s2/s2latlng_rect.cc      :| 18                                               ^:

In file included from ../src/s2/s2latlng_rect.h:/usr/local/clang/include/absl/base/nullability.h30::
241In file included from :../src/s2/s1angle.h22::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:o815n:n16u:l lwarning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]      
|                      ^
  815 |             T* aIn file included from bs2/s2lax_loop_shape.ccs:l18_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecif:
ieIn file included from d../src/s2/s2lax_loop_shape.h
:      41| :
                                 ^In file included from 
../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2latlng_rect.cc
:18:
In file included from ../src/s2/s2latlng_rect.h:  30951:
 | In file included from  ../src/s2/s1angle.h :v28o:
iIn file included from d../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29r:
gIn file included from _/usr/local/clang/include/absl/strings/cord.h :=94 :
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31p:
t/usr/local/clang/include/absl/synchronization/mutex.hr:;844
:      10| :        ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257  :84423 | :   note:  expanded from macro 'absl_nullable' 
  T  *257  | a#bdself_innoen naublsll _onbujlelcatb,l
e       | _         ^N
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:
       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnullIn file included from  s2/s2lax_loop_shape.cc_:N18o:
nIn file included from n../src/s2/s2lax_loop_shape.hu:l41l:

In file included from       ../src/s2/s2loop.h| :                     ^34
:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52:In file included from  s2/s2latlng_rect.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2latlng_rect.h:30:
  In file included from 954../src/s2/s1angle.h | :In file included from  28s2/s2latlng.cc :
:sIn file included from 18t../src/s2/s2point.ha:
:tIn file included from 27i../src/s2/s2latlng.h:
c:In file included from  32b../src/s2/s2coder.h:
o:oIn file included from l23 ../src/s2/s1angle.h:
C:In file included from a28l/usr/local/clang/include/absl/status/status.h:
l:VIn file included from 67o../src/s2/s2point.hi:
d:In file included from P27/usr/local/clang/include/absl/status/internal/status_internal.ht:
:rIn file included from 29F../src/s2/s2coder.h:
u:nIn file included from c23/usr/local/clang/include/absl/strings/cord.ht:
i:oIn file included from 94n/usr/local/clang/include/absl/status/status.h:
(:In file included from c67/usr/local/clang/include/absl/strings/internal/cordz_info.ho:
:nIn file included from 31s/usr/local/clang/include/absl/status/internal/status_internal.h:
t:/usr/local/clang/include/absl/synchronization/mutex.h 29:C:
845o:/usr/local/clang/include/absl/strings/cord.hn45:d:1505i :t41warning: i:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o n
warning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  a845b | s   l1505 _ |  nio nn lnbuionleol l v o(cai)db; sCl
:o:      rtdy:| p:e                                                   ^C_
oipd/usr/local/clang/include/absl/base/nullability.hyeT:not241Ai:rtr22ya:<yTI >mnote: :expanded from macro 'absl_nonnull'p:
lt(y  cp241hea | :r:#** d aeabfbsislnl_e_n noaonbnsnnluul_llnlo  mndnesuttlh)lo  dc)_o(Nn)os)nt;n u
{l      l

|                                                         ^| | 
                                        ^                     ^
/usr/local/clang/include/absl/base/nullability.h
:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* abIn file included from ss2/s2latlng.ccl:_18n:
oIn file included from n../src/s2/s2latlng.hn:u32l:
lIn file included from  ../src/s2/s1angle.ho:b28j:
eIn file included from c../src/s2/s2point.ht:,27
:
      In file included from | ../src/s2/s2coder.h               ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/cord.h:1514  :24129 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine  1514a | b s l _ ncoonrndu_liln t_eNronnanlu:l:lC
o      r| d                     ^R
ep* absl_nonnull tIn file included from rs2/s2latlng_rect.cce:e18):
 In file included from {../src/s2/s2latlng_rect.h
:      30| :
                            ^In file included from 
../src/s2/s1angle.h:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h:  67241:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n851u:l45l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l851l | 
        |                       ^ 
  bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2latlng.cc/usr/local/clang/include/absl/synchronization/mutex.h::18855:
:In file included from 34../src/s2/s2latlng.h:: In file included from 32warning: :
s2/s2lax_loop_shape.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :
../src/s2/s1angle.h18::
28In file included from :
../src/s2/s2lax_loop_shape.h  In file included from :855../src/s2/s2point.h41 | ::
 27In file included from  :
e../src/s2/s2loop.hIn file included from x:../src/s2/s2coder.hp34l::
i23cIn file included from :
i../src/s2/mutable_s2shape_index.hIn file included from t:/usr/local/clang/include/absl/status/status.h 30:C:
67oIn file included from :
n/usr/local/clang/include/absl/container/btree_map.hIn file included from d:/usr/local/clang/include/absl/status/internal/status_internal.hi66:t:
29iIn file included from :
o/usr/local/clang/include/absl/container/internal/btree.hn/usr/local/clang/include/absl/strings/cord.h:(:73c1525:
o:In file included from n29/usr/local/clang/include/absl/strings/cord.hs::t 94warning:  :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bIn file included from 
o/usr/local/clang/include/absl/strings/internal/cordz_info.ho:l31*  :
1525a | /usr/local/clang/include/absl/synchronization/mutex.hb :s 956l _: n52co:on rnwarning: dutype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_l
iln tceor  nn956da | )l ; :
s:      tC| ao                                 ^tr
idcR eb/usr/local/clang/include/absl/base/nullability.hop:*o241 l:a 22Cb:as slnote: t_expanded from macro 'absl_nonnull'An
nodn  Cna241ul | ll#Fldu netcfrtiienoeen) ( ac{bo
sn      ls| _t                            ^n 
oCnonnu/usr/local/clang/include/absl/base/nullability.hdl:il241t :i_22oN:no n*note: n expanded from macro 'absl_nonnull'ua
lbls  
l241      _ | n| #                     ^do
enfniunlel  acb)s;l
_      n| o                                                   ^n
null/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2lax_loop_shape.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2lax_loop_shape.h31::
41:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2loop.h886::3431:
:In file included from  ../src/s2/mutable_s2shape_index.h:warning: 30:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h886: | 73 :
 In file included from e/usr/local/clang/include/absl/strings/cord.hx:p94l:
iIn file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.hi:t31 :
C/usr/local/clang/include/absl/synchronization/mutex.ho:n958d:i50t:i owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
In file included from cs2/s2latlng.cc  o:n95818s | :
t In file included from   ../src/s2/s2latlng.hTs:*t32 a:
atIn file included from bi../src/s2/s1angle.hscl: _28bn:
ooIn file included from onl../src/s2/s2point.hn :uC27la:
lsIn file included from  t../src/s2/s2coder.hoA:bn23dj:
C)In file included from a
/usr/local/clang/include/absl/status/status.hl      :l| 67M                              ^:
e
In file included from t/usr/local/clang/include/absl/status/internal/status_internal.hh:/usr/local/clang/include/absl/base/nullability.ho29:d:
241(:/usr/local/clang/include/absl/strings/cord.hc22:o:1530n :s55note: t:expanded from macro 'absl_nonnull'  
Cwarning: o  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n241
d | i#tdi eo1530fn | i*in neal biasnbles_ lnC_oonnrondnu:nl:ulCl hlcu )n_;kN
Io      tn| en                                                 ^ru
altl/usr/local/clang/include/absl/base/nullability.ho
:r      241:| ::                     ^22C
:h unote: nexpanded from macro 'absl_nonnull'k
It  e241r | a#tdoerf(icnoen satb sClo_rndo*n naublsll __nNoonnnnuullll 
c      o| r                     ^d
) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2lax_loop_shape.cce:f18In file included from i:
s2/s2latlng_rect.ccnIn file included from :e../src/s2/s2lax_loop_shape.h18 ::
a41In file included from b:
../src/s2/s2latlng_rect.hsIn file included from :l../src/s2/s2loop.h30_::
n34In file included from o:
../src/s2/s1angle.hnIn file included from :n../src/s2/mutable_s2shape_index.hu28:l:
30lIn file included from :
 ../src/s2/s2point.hIn file included from _:/usr/local/clang/include/absl/container/btree_map.hN27:o:
66nIn file included from :
n../src/s2/s2coder.hIn file included from u:/usr/local/clang/include/absl/container/internal/btree.hl23:l:
73
In file included from :
      /usr/local/clang/include/absl/status/status.hIn file included from | :/usr/local/clang/include/absl/strings/cord.h                     ^67:
:
94In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h29::
31In file included from :
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/synchronization/mutex.h94::
961In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h34::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
896:31:   961warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 st  a896t | i c  ebxopolli cCiatl lCBoynRdeift(icoonn(scto nTs*t  aTb*s la_bnsoln_nnuolnln uslell fo)b j{)

            | |                                  ^                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.hs2/s2latlng_rect.cc::7318:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2latlng_rect.h::9430:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s1angle.h::3128:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2point.h::97527::
31In file included from :../src/s2/s2coder.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h975: | 29 :
 In file included from i/usr/local/clang/include/absl/strings/cord.hn:l94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :v31o:
i/usr/local/clang/include/absl/synchronization/mutex.hd: 922R:e48a:d Cwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
lbac  k922( | T *  satbastli_cn obnonoull lG ucaarlalnbtaecekd)E qcuoanls(tc o{n
s      t|                                ^C
on/usr/local/clang/include/absl/base/nullability.hd:i241t:i22o:n *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  aab,s
l      _| n                                               ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nullable _In file included from Ns2/s2lax_loop_shape.ccu:l18l:
aIn file included from b../src/s2/s2lax_loop_shape.hl:e41
:
      In file included from | ../src/s2/s2loop.h                      ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:In file included from 73s2/s2latlng_rect.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2latlng_rect.h:
:In file included from 30/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s1angle.h:
:28/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 979../src/s2/s2point.h::4327::
 In file included from ../src/s2/s2coder.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
979In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29s:
tIn file included from a/usr/local/clang/include/absl/strings/cord.ht:i94c:
 In file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.ho:o31l:
 /usr/local/clang/include/absl/synchronization/mutex.hA:l923w:a48y:s Twarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
e(c  o923n | s t   C o n d i t i o n *   a b s l _ n u l l a b l e )   {  croentsutr nC otnrduiet;i o}n
*       | a                                          ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257u:l23l:a bnote: lexpanded from macro 'absl_nullable'e
 b  )257; | 
#      d| e                                               ^f
in/usr/local/clang/include/absl/base/nullability.he: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'u
ll  a257b | l#ed e_fNiunlel aabblsel
_      n| u                      ^l
lable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable In file included from _s2/s2lax_loop_shape.ccN:u18l:
lIn file included from a../src/s2/s2lax_loop_shape.hb:l41e:

In file included from       ../src/s2/s2loop.h| :                      ^34
:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:In file included from 66s2/s2latlng_rect.cc:
:In file included from 18/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73../src/s2/s2latlng_rect.h:
:In file included from 30/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2point.h:
:27/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1033../src/s2/s2coder.h::2023::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29 :
1033In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94v:
oIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hd: 31W:
a/usr/local/clang/include/absl/synchronization/mutex.hi:t948(:M48u:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s948l | _ n obnonoull l( *maub)s l{_
n      u| l                   ^l
abl/usr/local/clang/include/absl/base/nullability.he: 241e:v22a:l _note: )expanded from macro 'absl_nonnull'(
co  n241s | t# dCeofnidniet iaobns*l _anbosnln_unlolnnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
 /usr/local/clang/include/absl/base/nullability.h:241:_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from In file included from ../src/s2/s2loop.hs2/s2latlng_rect.cc::3418:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2latlng_rect.h::3030:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s1angle.h::6628:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2point.h::7327:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2coder.h::9423:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/status/status.h::3167:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/status/internal/status_internal.h::105029::
31In file included from :/usr/local/clang/include/absl/strings/cord.h :94warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h :1050958 | : 50 :b owarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 Wa  i958t | W i tshtTaitmieco ubto(oMlu tCeaxs*t AanbdsCla_lnloMnentuhlold (mcuo,n satb sColn:d:iDtuiroant*i In file included from oas2/s2latlng.ccnb:s 18tl:
i_In file included from mn../src/s2/s2latlng.hoe:on32un:
tuIn file included from l)../src/s2/s1angle.hl : {28c
:
)      In file included from ;| ../src/s2/s2point.h                              ^
:
      27| :
                                                 ^In file included from /usr/local/clang/include/absl/base/nullability.h
../src/s2/s2coder.h::241/usr/local/clang/include/absl/base/nullability.h23:::
22241In file included from ::/usr/local/clang/include/absl/status/status.h 22::note: 67 expanded from macro 'absl_nonnull':

note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h  
:24129 |   :
#241d | /usr/local/clang/include/absl/strings/cord.he#:fd1666ie:nf48ei: n aewarning: b type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sa
lb_snlo _n1666nn | ouinlnnllu il_nlNe o _nCNnoournldnl uC
lo      lr| 
d                     ^      :
| :                     ^A
dvanceAndRead(CharIn file included from Is2/s2latlng_rect.cct:e18r:
aIn file included from t../src/s2/s2latlng_rect.ho:r30In file included from *:
s2/s2lax_loop_shape.cc In file included from :a../src/s2/s1angle.h18b::
s28In file included from l:
../src/s2/s2lax_loop_shape.h_In file included from :n../src/s2/s2point.h41o::
n27nIn file included from :
u../src/s2/s2loop.hIn file included from l:../src/s2/s2coder.hl34: :
23iIn file included from :
t../src/s2/mutable_s2shape_index.hIn file included from ,:/usr/local/clang/include/absl/status/status.h
30:      :
67| In file included from :
                                               ^/usr/local/clang/include/absl/container/btree_map.hIn file included from 
:/usr/local/clang/include/absl/status/internal/status_internal.h66::
29/usr/local/clang/include/absl/base/nullability.hIn file included from :
:/usr/local/clang/include/absl/container/internal/btree.hIn file included from 241:/usr/local/clang/include/absl/strings/cord.h:73:22:
94:In file included from :
 /usr/local/clang/include/absl/strings/cord.hIn file included from :note: /usr/local/clang/include/absl/strings/internal/cordz_info.h94expanded from macro 'absl_nonnull'::

31In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h  :/usr/local/clang/include/absl/synchronization/mutex.h24131: | :
961#:/usr/local/clang/include/absl/synchronization/mutex.hd34:e:1069f :i32warning: n:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
 warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b  
s961l | _ n  o1069sn | tn au tlbiloc o _lbN ooWonalni tuCWlaillt
lh      BD| ye                     ^Ra
edfl(icnoen(sMtu tTe*x *a basbls_ln_onnonnunlull ls emluf,)  a{b
s      l| :                                 ^:
Ti/usr/local/clang/include/absl/base/nullability.hm:e241 :d22e:a dnote: lexpanded from macro 'absl_nonnull'i
ne  )241  | {#
d      e| f                               ^i
In file included from n/usr/local/clang/include/absl/base/nullability.hs2/s2latlng.cce:: 24118a::
b22In file included from s:../src/s2/s2latlng.hl :_32nnote: :
oexpanded from macro 'absl_nonnull'In file included from n
../src/s2/s1angle.hn:  u28241l:
l | In file included from # ../src/s2/s2point.hd_e:Nf27oi:
nnIn file included from ne../src/s2/s2coder.hu :al23lb:
s
lIn file included from _      /usr/local/clang/include/absl/status/status.hn| :o                     ^67n
:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
_/usr/local/clang/include/absl/strings/cord.hN:o1672n:n41u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
 1672 | inline In file included from vs2/s2latlng_rect.cco:i18d:
 In file included from C../src/s2/s2latlng_rect.ho:r30d:
:In file included from :../src/s2/s1angle.hA:d28v:
aIn file included from n../src/s2/s2point.hc:In file included from e27s2/s2lax_loop_shape.cc(:
:CIn file included from 18h../src/s2/s2coder.h:
a:In file included from r23../src/s2/s2lax_loop_shape.hI:
:tIn file included from e41/usr/local/clang/include/absl/status/status.hr:
:aIn file included from 67t../src/s2/s2loop.h:
o:In file included from r34/usr/local/clang/include/absl/status/internal/status_internal.h*:
: In file included from 29a../src/s2/mutable_s2shape_index.h:
b:In file included from s30/usr/local/clang/include/absl/strings/cord.hl:
:_In file included from 94n/usr/local/clang/include/absl/container/btree_map.h:
o:In file included from n66/usr/local/clang/include/absl/strings/internal/cordz_info.hn:
:uIn file included from 31l/usr/local/clang/include/absl/container/internal/btree.h:
l:/usr/local/clang/include/absl/synchronization/mutex.h 73:i:
975tIn file included from :,/usr/local/clang/include/absl/strings/cord.h31 ::s94 i:
warning: zIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e/usr/local/clang/include/absl/strings/internal/cordz_info.h_
t: 31n:
  _/usr/local/clang/include/absl/synchronization/mutex.h975b: | y1088 t: ei35sn:)l  i{warning: n
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e       
v| o                                        ^i
 d1088  | R/usr/local/clang/include/absl/base/nullability.h e:a 241vd:Co22ia:ld l note: bEexpanded from macro 'absl_nonnull'na
acb  kl241(e | TD#*de beuafgbiLsnloe_g n(aocbnosnnlus_ltnl o cncnhaualrlll*b  a_acNboksn)ln u_clnolnu
sl      tl|                       ^{a

b      l| e                              ^ 
na/usr/local/clang/include/absl/base/nullability.hm:e241):;22
:       | note:                                   ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
l      e|                       ^_
Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2lax_loop_shape.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2lax_loop_shape.h:
:In file included from 41../src/s2/s2coder.h:
:In file included from 23../src/s2/s2loop.h:
:In file included from 34/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/strings/cord.h:
:94/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 979/usr/local/clang/include/absl/strings/internal/cordz_info.h::4331::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]1091
:26:   warning: 979type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  s t1091a | t i cb oboolo lW aAiltwCaoymsmTornu(eM(uctoenxs*t  aCbosnld_intoinonnu*l la bmsult_enxu,l
l      a| b                         ^l
e)/usr/local/clang/include/absl/base/nullability.h :{241 :r22e:t unote: rexpanded from macro 'absl_nonnull'n
 t  r241u | e#;d e}f
i      n| e                                          ^ 
ab/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      s|                               ^
l_nonnu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2latlng_rect.cc::6618:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2latlng_rect.h::7330:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s1angle.h::9428:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2point.h::3127:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2coder.h::109323::
46In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h :109394 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hv:o31i:
d/usr/local/clang/include/absl/synchronization/mutex.h :R1069e:m32o:v ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ase_ i1069n | t e rbnoaoll: :WPaeirtTWhirtehaDdeSaydnlcihn*e (aMbustle_xn*o nanbuslll_ nso)n;n
u      l| l                                             ^ 
mu,/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:: :note: Texpanded from macro 'absl_nonnull'i
me   241d | e#addelfiinnee)  a{b
s      l| _                               ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 1091s2/s2lax_loop_shape.cc::2618::
 In file included from ../src/s2/s2lax_loop_shape.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]41
:
In file included from ../src/s2/s2loop.h: 341091:
 | In file included from  ../src/s2/mutable_s2shape_index.h :b30o:
oIn file included from l/usr/local/clang/include/absl/container/btree_map.h :W66a:
iIn file included from t/usr/local/clang/include/absl/container/internal/btree.hC:o73m:
mIn file included from o/usr/local/clang/include/absl/strings/cord.hn:(94M:
uIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.he:x31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1109s:l34_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  1109m | ut e xe,x
p      l| i                         ^c
it/usr/local/clang/include/absl/base/nullability.h :M241u:t22e:x Lnote: oexpanded from macro 'absl_nonnull'c
kM  a241y | b#ed(eMfuitneex *a basbls_ln_onnunlullalb l_eN omnun)u
l      l| 
                                 ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nIn file included from us2/s2latlng_rect.ccl:l18a:
bIn file included from l../src/s2/s2latlng_rect.he: 30_:
NIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he:
27      :
| In file included from                       ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   voiIn file included from ds2/s2lax_loop_shape.cc :R18e:
mIn file included from o../src/s2/s2lax_loop_shape.hv:e41(:
bIn file included from a../src/s2/s2loop.hs:e34_:
iIn file included from n../src/s2/mutable_s2shape_index.ht:e30r:
nIn file included from a/usr/local/clang/include/absl/container/btree_map.hl::66::
PIn file included from e/usr/local/clang/include/absl/container/internal/btree.hr:T73h:
rIn file included from e/usr/local/clang/include/absl/strings/cord.ha:d94S:
yIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hc:h31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1117s:l34_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  s1117) | ; 
       e| x                                             ^p
li/usr/local/clang/include/absl/base/nullability.hc:i241t: 22M:u tnote: eexpanded from macro 'absl_nonnull'x
Lo  c241k | M#adyebfei(nMeu taebxs*l _anbosnln_unlull l_aNbolnen umlul,
       c| o                     ^n
st Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: In file included from warning: s2/s2latlng_rect.cc'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from  ../src/s2/s1angle.h1158: | 28 :
 In file included from  ../src/s2/s2point.h : 27 :
MIn file included from u../src/s2/s2coder.ht:e23x:
&In file included from  /usr/local/clang/include/absl/status/status.hm:u67 :
AIn file included from B/usr/local/clang/include/absl/status/internal/status_internal.hS:L29_:
IIn file included from N/usr/local/clang/include/absl/strings/cord.hT:E94R:
NIn file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hL:_31A:
TT/usr/local/clang/include/absl/synchronization/mutex.hR:I1109B:U34T:E _warning: Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
PTURE D1109_ | B Y (etxhpilsi)c,i
t       | M                                                    ^~~~u
texLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257/usr/local/clang/include/absl/synchronization/mutex.h | :#1166d:e39f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl _1166n | u l leaxbpllei c_iNtu lRlealbelaes
a      b| l                      ^e
MutexLock(Mutex* absl_nonnull mu, const CIn file included from os2/s2latlng_rect.ccn:d18i:
tIn file included from i../src/s2/s2latlng_rect.ho:n30&:
 In file included from c../src/s2/s1angle.ho:n28d:
)In file included from 
../src/s2/s2point.h      :| 27                                      ^:

In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e1117 :a34b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onnu l1117l |   _ Neoxnpnluilcli
t       | M                     ^u
texLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
In file included from       s2/s2lax_loop_shape.cc| :                                 ^18
:
In file included from ../src/s2/s2lax_loop_shape.h:/usr/local/clang/include/absl/base/nullability.h41::
257In file included from :../src/s2/s2loop.h23::34 :
In file included from note: ../src/s2/mutable_s2shape_index.hexpanded from macro 'absl_nullable':
30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h257: | 66#:
dIn file included from e/usr/local/clang/include/absl/container/internal/btree.hf:i73n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.ha:b1179l:e10 :_ Nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
la b1179l | e 
       M| u                      ^t
ex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2latlng_rect.ccn:u18l:
lIn file included from a../src/s2/s2latlng_rect.hb:l30e:
 In file included from _../src/s2/s1angle.hN:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:

In file included from       ../src/s2/s2coder.h| :                      ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasaIn file included from bs2/s2lax_loop_shape.ccl:e18M:
uIn file included from t../src/s2/s2lax_loop_shape.he:x41L:
oIn file included from c../src/s2/s2loop.hk:(34M:
uIn file included from t../src/s2/mutable_s2shape_index.he:x30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.ho:n73n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94m:
uIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:1212:/usr/local/clang/include/absl/base/nullability.h52::241 :22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
   1212241 |  | b#odoelf iCnoen daibtsilo_nn:o:nCnausltlA n_dNCoanlnluMlelt
h      o| d                     ^(
const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2latlng_rect.cc22::18 :
In file included from note: ../src/s2/s2latlng_rect.hexpanded from macro 'absl_nonnull':
30:
In file included from   ../src/s2/s1angle.h241: | 28#:
dIn file included from e../src/s2/s2point.hf:i27n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/synchronization/mutex.h1221::116654::39 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  12211166 |  | b o oelx pCloincdiitt iRoenl:e:aCsaasbtlAenMduCtaelxlLFoucnkc(tMiuotne(xc*o nasbts lC_onnodnintuiloln *m ua,b sclo_nnsotn nCuolnld ict)i o{n
&       | c                                                     ^o
nd)/usr/local/clang/include/absl/base/nullability.h
:      241| :                                      ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2lax_loop_shape.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2lax_loop_shape.hIn file included from :/usr/local/clang/include/absl/status/status.h41::
67In file included from :
../src/s2/s2loop.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h34::
29In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/strings/cord.h30::
94In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h66::
31In file included from :
/usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/synchronization/mutex.h73::
1179In file included from :/usr/local/clang/include/absl/strings/cord.h10::94 :
In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
31:
 /usr/local/clang/include/absl/synchronization/mutex.h1179: | 1230 : 12M:u twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
* a b1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
s/usr/local/clang/include/absl/base/nullability.h:289:l34_:n unote: lexpanded from macro 'absl_nullability_unknown'l
abl  e289  | m#ud_e;f
i      n| e         ^ 
absl_/usr/local/clang/include/absl/base/nullability.hn:u257l:l23a:b inote: lexpanded from macro 'absl_nullable'i
ty_  u257n | k#ndoewfni n_eN ualbls_lu_nnsuplelcaibfliee d_
N      u| l                                 ^l
able
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identIn file included from is2/s2latlng_rect.cct:y18<:
TIn file included from >../src/s2/s2latlng_rect.h:::30t:
yIn file included from p../src/s2/s1angle.he:*28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from i/usr/local/clang/include/absl/status/status.hl:i67t:
yIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hu:n29k:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hw:n94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                           ^:
31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::2891212::3452::  note: warning: expanded from macro 'absl_nullability_unknown'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  289 | # d1212e | fbionoel  aCbosnld_intuilolna:b:iClaisttyA_nudnCkanlolwMne t_hNoudl(lc_ounnsstp eCcoinfdiietdi
o      n| *                                 ^ 
absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2lax_loop_shape.ccs:l18_:
nIn file included from o../src/s2/s2lax_loop_shape.hn:n41u:
lIn file included from l../src/s2/s2loop.h :_34N:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66                     ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2latlng_rect.cc_:n18o:
nIn file included from n../src/s2/s2latlng_rect.hu:l30l:
 In file included from _../src/s2/s1angle.hN:o28n:
nIn file included from u../src/s2/s2point.hl:l27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:In file included from 54s2/s2lax_loop_shape.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2lax_loop_shape.h
:41:
In file included from ../src/s2/s2loop.h :122134 | :
bIn file included from o../src/s2/mutable_s2shape_index.ho:l30 :
CIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:d66i:
tIn file included from i/usr/local/clang/include/absl/container/internal/btree.ho:n73::
:In file included from C/usr/local/clang/include/absl/strings/cord.ha:s94t:
AIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hd:C31a:
l/usr/local/clang/include/absl/synchronization/mutex.hl:F1250u:n43c:t iwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
(co n1250s | t   C o nbdoiotli o(na*b salb:s:lt_ynpoen_niudleln tci)t y{<
T      >| :                                                     ^:
typ/usr/local/clang/include/absl/base/nullability.he::241::*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf imneet haobds)l(_)n)o
n      n| u                                          ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from 31s2/s2lax_loop_shape.cc:
:18/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1230../src/s2/s2lax_loop_shape.h::1241::
 In file included from ../src/s2/s2loop.hwarning: :34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:30:
 In file included from 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_uIn file included from nss2/s2latlng.ccp/usr/local/clang/include/absl/container/btree_map.h:e18:c:
66iIn file included from f:
../src/s2/s2latlng.hiIn file included from e:/usr/local/clang/include/absl/container/internal/btree.hd32:
:
73      In file included from :
| ../src/s2/s1angle.hIn file included from                                  ^:/usr/local/clang/include/absl/strings/cord.h
28::
94In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h27::
31In file included from :
../src/s2/s2coder.h:/usr/local/clang/include/absl/synchronization/mutex.h23::
1259In file included from :/usr/local/clang/include/absl/status/status.h14::67 :
warning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
119:14:  warning: 1259 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   c  o119n | s t  STt*a taubssRle_pn*o nanbuslll_ noobnjneucltl, 
C      l| o             ^n
e(
/usr/local/clang/include/absl/base/nullability.h      :| 241             ^:
22: note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fIn file included from i  s2/s2latlng_rect.ccn241:e | 18 #:
adIn file included from eb../src/s2/s2latlng_rect.hfs:il30n_:
enIn file included from  o../src/s2/s1angle.han:bns28lu:
_lIn file included from nl../src/s2/s2point.ho :n_27nN:
uolIn file included from ln../src/s2/s2coder.hn :u_23lN:
loIn file included from n
/usr/local/clang/include/absl/status/status.hn      :u| 67l                     ^l:


In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     boIn file included from os2/s2lax_loop_shape.ccl: 18(:
*In file included from a../src/s2/s2lax_loop_shape.hb:s41l:
_In file included from n../src/s2/s2loop.hIn file included from o:s2/s2latlng.ccn34:n:
18uIn file included from :
l../src/s2/mutable_s2shape_index.hIn file included from l:../src/s2/s2latlng.h 30:f:
32uIn file included from :
n/usr/local/clang/include/absl/container/btree_map.hIn file included from c:../src/s2/s1angle.h)66:(:
28TIn file included from :
*/usr/local/clang/include/absl/container/internal/btree.hIn file included from  :../src/s2/s2point.ha73:b:
27sIn file included from :
l/usr/local/clang/include/absl/strings/cord.hIn file included from _:../src/s2/s2coder.hn94:u:
23lIn file included from :
l/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from a:/usr/local/clang/include/absl/status/status.hb31:i:
67l/usr/local/clang/include/absl/synchronization/mutex.h:
i:/usr/local/clang/include/absl/status/internal/status_internal.ht1260:y:125_43:u:14n :k warning: nwarning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w

n),   
1260125       |  | |              ^  
 S tba/usr/local/clang/include/absl/base/nullability.hto:uo241sl:R 22e(:pa *bnote:  sexpanded from macro 'absl_nonnull'al
b:s:  lt241_y | np#oedn_enifudilenlne t Cialtboysn<leT_A>nn:od:nUtnnyurpleelf: (:_
*N       o| an             ^bn
sull/usr/local/clang/include/absl/base/nullability.h_l:n
241o      :n| 22n                     ^:u
 lnote: lexpanded from macro 'absl_nonnull' 
me  tIn file included from 241hs2/s2latlng_rect.cc | o:#d18d):
e(In file included from f)../src/s2/s2latlng_rect.hi
:n      30e| :
                                           ^In file included from a
../src/s2/s1angle.hb:s/usr/local/clang/include/absl/base/nullability.h28l::
_241In file included from n:../src/s2/s2point.ho22:n:27n :
uIn file included from note: l../src/s2/s2coder.hexpanded from macro 'absl_nonnull'l:
 23_:
  NIn file included from o241/usr/local/clang/include/absl/status/status.hn | :n#67ud:
leIn file included from lf/usr/local/clang/include/absl/status/internal/status_internal.h
i:      n29| e:
                     ^ In file included from 
a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1241 :_34N:o nwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]u
ll
       1241|  |                      ^ 
   bool (*In file included from as2/s2latlng.ccb:s18l:
_In file included from n../src/s2/s2latlng.ho:n32n:
uIn file included from l../src/s2/s1angle.hl: 28f:
uIn file included from n../src/s2/s2point.hc:)27(:
TIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67u:
l/usr/local/clang/include/absl/status/internal/status_internal.hl:a128b:i14l:i twarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
unk  n128o | w n )S,t
a      t| uIn file included from                                  ^ss2/s2lax_loop_shape.cc
R:e18/usr/local/clang/include/absl/base/nullability.hp:
:*In file included from 289 ../src/s2/s2lax_loop_shape.h:a:34b41:s:
 lIn file included from note: _../src/s2/s2loop.hexpanded from macro 'absl_nullability_unknown'n:
o34n:
  nIn file included from 289u../src/s2/mutable_s2shape_index.h | l:#l30d e:
CflIn file included from io/usr/local/clang/include/absl/container/btree_map.hnne:e 66Aa:
nbIn file included from ds/usr/local/clang/include/absl/container/internal/btree.hUl:n_73rn:
eufIn file included from l(/usr/local/clang/include/absl/strings/cord.hl):a b94ci:
olIn file included from ni/usr/local/clang/include/absl/strings/internal/cordz_info.hst:ty31;_:

u      /usr/local/clang/include/absl/synchronization/mutex.hn| k:             ^n1279
o:w35/usr/local/clang/include/absl/base/nullability.hn::  241_:warning: N22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u:
l lnote: _expanded from macro 'absl_nonnull' u
1279n | sv  po241ei | c#did feRifeeidn
ge      i | sa                                 ^tb
selr_MnuotnenxuPlrlo f_iNloenrn(uvloli
d       | (                     ^*
aIn file included from bs2/s2latlng_rect.ccs:l18_:
nIn file included from o../src/s2/s2latlng_rect.hn:n30u:
lIn file included from l../src/s2/s1angle.h :f28n:
)In file included from (../src/s2/s2point.hi:n27t:
6In file included from 4../src/s2/s2coder.h_:t23 :
wIn file included from a/usr/local/clang/include/absl/status/status.hi:t67_:
cIn file included from y/usr/local/clang/include/absl/status/internal/status_internal.hc:l29e:
sIn file included from )/usr/local/clang/include/absl/strings/cord.h):;94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                  ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::1242241::4422::  warning: note: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241  | 1242# | d e f i ntey paebnsalm_en oanbnsull:l: t_yNpoen_niudleln
t      i| t                     ^y
<T>::type* absl_nullability_unkIn file included from ns2/s2lax_loop_shape.cco:w18n:

In file included from       ../src/s2/s2lax_loop_shape.h| :                                           ^41
:
In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/base/nullability.h::34289:
:In file included from 34../src/s2/mutable_s2shape_index.h:: 30:
note: In file included from expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/container/btree_map.h
:66:
  In file included from 289/usr/local/clang/include/absl/container/internal/btree.h | :#73d:
eIn file included from f/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:u1293l:l33a:b iwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ty_u n1293k | nvoowind  _RNeuglils_tuenrsMpuetceixfTireadc
e      r| (                                 ^v
oid (*absl_nonnull fn)(const char* absl_nonnull mIn file included from ss2/s2latlng_rect.ccg:,18
:
      In file included from | ../src/s2/s2latlng_rect.h                                ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 1249_:N8o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
       | 1249                     ^ | 
    In file included from Ts2/s2lax_loop_shape.cc*: 18a:
bIn file included from s../src/s2/s2lax_loop_shape.hl:_41n:
oIn file included from n../src/s2/s2loop.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.ho:b30j:
eIn file included from c/usr/local/clang/include/absl/container/btree_map.ht:,66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h       ^:
73:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.h
:1293:  62241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin e1293  | avbosild_ nRoengniusltle r_MNuotnenxuTlrla
c      e| r                     ^(
void (*absl_nonnull fIn file included from ns2/s2latlng_rect.cc):(18c:
oIn file included from n../src/s2/s2latlng_rect.hs:t30 :
cIn file included from h../src/s2/s1angle.ha:r28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67m:
sIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.h,:
29      :
| In file included from                                                              ^/usr/local/clang/include/absl/strings/cord.h
:94:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h241::3122:
: /usr/local/clang/include/absl/synchronization/mutex.h:note: 1250expanded from macro 'absl_nonnull':
43:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def i1250n | e   a b sblo_onlo n(naublsll :_:Ntoynpneu_lild
e      n| t                     ^i
ty<T>::type:In file included from :s2/s2lax_loop_shape.cc*: 18a:
bIn file included from s../src/s2/s2lax_loop_shape.hl:_41n:
oIn file included from n../src/s2/s2loop.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.hm:e30t:
hIn file included from o/usr/local/clang/include/absl/container/btree_map.hd:)66(:
)In file included from )/usr/local/clang/include/absl/container/internal/btree.h
:      73| :
                                          ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'1294
:62:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi n1294e |   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
                       const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2latlng_rect.ccn:u18l:
lIn file included from  ../src/s2/s2latlng_rect.h_:N30o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14:In file included from  s2/s2lax_loop_shape.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2lax_loop_shape.h:41 :
1259In file included from  | ../src/s2/s2loop.h : 34 :
 In file included from c../src/s2/mutable_s2shape_index.ho:n30s:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hT:*66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l73_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :o31b:
j/usr/local/clang/include/absl/synchronization/mutex.he:c1309t:,35
:       | warning:              ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h: 2411309: | 22v:o inote: dexpanded from macro 'absl_nonnull' 
Re  g241i | s#tdeerfCionned VaabrsTlr_ancoenrn(uvloli d_ N(o*nanbuslll_
n      o| n                     ^n
ull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nIn file included from os2/s2latlng_rect.ccn:n18u:
lIn file included from l../src/s2/s2latlng_rect.h :m30s:
gIn file included from ,../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27v:
oIn file included from i../src/s2/s2coder.hd:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :c94v:
)In file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                              ^:
1260:43/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
 1260   | 241  |  # d ebfoionle  (aabbssll_:n:otnynpuel_li d_eNnotnintuyl<lT
>      :| :                     ^t
ype::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:26:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:26:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:30:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:30:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1In file included from )s2/s2lax_polyline_shape.cc,: 18#:
vIn file included from a../src/s2/s2lax_polyline_shape.hl:126,:
 (/usr/local/clang/include/absl/types/span.hv:a733l:231):,  warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]v
al2)
        | 733  ^ | 
co/usr/local/clang/include/absl/log/internal/check_impl.hn:s51t:e3x:p rnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'S
pan   <51T | >   MAaBkSeLS_pLaOnG(_TI*NTERN AaLb_sClH_EnCuKl_lOaPb(lCeh epctkr_ NAEB,S L!_=A,T TvRaIlB1U,T Ev_aLlI1F_EtTeIxMtE,_ BvOaUlN2D,, 
v      a| l                              ^2
_tex/usr/local/clang/include/absl/base/nullability.ht:)257
:      23| :  ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/check_op.h
:75:  61257: |  #note: dexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'e
fin   e75  | a b sAlB_SnLu_lLlOaGb_lIeN T_ENRuNlAlLa_bClHeE
C      K| (                      ^:
:absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2lax_polyline_shape.cc::2218::
 In file included from note: ../src/s2/s2lax_polyline_shape.hexpanded from macro 'absl_nonnull':
26:
  /usr/local/clang/include/absl/types/span.h241: | 739#:d21e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 ab  s739l | _Snpoannn<uTl>l  M_aNkoenSnpualnl(
T      * absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:26:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng.cc:18:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2lax_polyline_shape.ccl: 18_:
NIn file included from o../src/s2/s2lax_polyline_shape.hn:n26u:
l/usr/local/clang/include/absl/types/span.hl:
794      :| 8                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 | In file included from  s2/s2latlng.cc : 18 :
TIn file included from *../src/s2/s2latlng.h :a32b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hp:t23r:
 In file included from A/usr/local/clang/include/absl/status/status.hB:S67L:
_/usr/local/clang/include/absl/status/internal/status_internal.hA:T150T:R25I:B Uwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_LIF  E150T | I M E _ BcOoUnNsDt,  asbiszle:_:tS tsaitzues)*  naobesxlc_enpotn n{u
l      l|         ^s
tat/usr/local/clang/include/absl/base/nullability.hu:s257,: 23c:o nnote: sexpanded from macro 'absl_nullable't
 c  h257a | r#*d eafbisnle_ naobnsnlu_lnlu lplraebfliex )_;N
u      l| l                        ^a
bl/usr/local/clang/include/absl/base/nullability.he:
241      :| 22                      ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2lax_polyline_shape.ccs2/s2latlng.cc::1818:
:
In file included from In file included from ../src/s2/s2lax_polyline_shape.h../src/s2/s2latlng.h::2632:
:
/usr/local/clang/include/absl/types/span.hIn file included from :../src/s2/s1angle.h799::2832:
:In file included from  ../src/s2/s2point.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:  23799:
 | In file included from S/usr/local/clang/include/absl/status/status.hp:a67n:
</usr/local/clang/include/absl/status/internal/status_internal.hc:o150n:s58t:  Twarning: >type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Make  C150o | n s t S pcaonn(sTt*  aabbssll:_:nSutlaltaubsl*e  abbesgli_nn
o      n| n                               ^u
ll/usr/local/clang/include/absl/base/nullability.h :s257t:a23t:u snote: ,expanded from macro 'absl_nullable' 
co  n257s | t# dcehfairn*e  aabbssll__nnounlnlualbll ep r_eNfuilxl)a;b
l      e| 
                                                         ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2lax_polyline_shape.cc
:18  :
241In file included from  | ../src/s2/s2lax_polyline_shape.h#:d26e:
In file included from f/usr/local/clang/include/absl/types/span.hs2/s2lax_loop_shape.cci::n80118e::
 32In file included from a:../src/s2/s2lax_loop_shape.hb :s41lwarning: :
_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from n
../src/s2/s2loop.ho:n34n  :
u801In file included from l | ../src/s2/mutable_s2shape_index.hl :  30_ :
N In file included from o /usr/local/clang/include/absl/container/btree_map.hn :n 66u :
l In file included from l /usr/local/clang/include/absl/container/internal/btree.h
 :       73|  :
                     ^ 
/usr/local/clang/include/absl/strings/cord.h : 109 : 53 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       109T | *v oaibds lC_onpuylCloarbdlTeo Setnrdi)n gn(oceoxncsetp tC o{r
d      &|                                 ^s
rc/usr/local/clang/include/absl/base/nullability.h,: 257s:t23d:: :note: sexpanded from macro 'absl_nullable't
ri  n257g | *# daebfsiln_en oanbnsull_ln udlslta)b;l
      e|                                                      ^_
Null/usr/local/clang/include/absl/base/nullability.ha:b241l:e22
:       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
|                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2latlng_rect.cc
:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: In file included from warning: s2/s2lax_loop_shape.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
  In file included from 109../src/s2/s2loop.h | :v34o:
iIn file included from d../src/s2/mutable_s2shape_index.h :C30o:
pIn file included from y/usr/local/clang/include/absl/container/btree_map.hC:o66r:
dIn file included from T/usr/local/clang/include/absl/container/internal/btree.ho:S73t:
r/usr/local/clang/include/absl/strings/cord.hi:n437g:(47c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 Cor  d437& |   s r c ,   s t d : : s t r i n g *   a b s l _ n o n n u l l   d sstt)d;:
:      s| t                                                    ^r
ing* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | d#sdte)f;i
n      e|                                                ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(In file included from cs2/s2lax_loop_shape.cco:n18s:
tIn file included from  ../src/s2/s2lax_loop_shape.hC:o41r:
dIn file included from &../src/s2/s2loop.h :s34r:
cIn file included from ,../src/s2/mutable_s2shape_index.h :s30t:
dIn file included from :/usr/local/clang/include/absl/container/btree_map.h::s66t:
rIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:g73*:
 /usr/local/clang/include/absl/strings/cord.ha:b480s:l39_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   480d | s t ) ; 
u      s| i                                                      ^n
g /usr/local/clang/include/absl/base/nullability.hp:o241i:n22t:e rnote:  expanded from macro 'absl_nonnull'=
 c  241o | n#sdte fvianleu ea_btsylp_en*o nanbuslll_ n_oNnonnunlull;l

            | |                                       ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: In file included from warning: s2/s2latlng.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2latlng.h:  32501:
 | In file included from  ../src/s2/s1angle.h : 28 :
eIn file included from x../src/s2/s2point.hp:l27i:
cIn file included from i../src/s2/s2coder.ht: 23C:
hu/usr/local/clang/include/absl/status/status.hn:k725I:t38e:r awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r(co  r725d | _ i nstteartniacl :s:tCaotrudsR_eipn*t earbnsall_:n:oSntnautluls Rterpe*e )a;b
s      l| _                                                   ^n
onn/usr/local/clang/include/absl/base/nullability.hu:241l:l22 :P rnote: eexpanded from macro 'absl_nonnull'p
ar  e241T | o#Mdoedfiifnye( 
a      b| s                                     ^l
_non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _NonnullIn file included from 
s2/s2lax_loop_shape.cc      :| 18                     ^:

In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit CIn file included from hs2/s2latlng.ccu:n18k:
IIn file included from t../src/s2/s2latlng.he:r32a:
tIn file included from o../src/s2/s1angle.hr:(28c:
oIn file included from n../src/s2/s2point.hs:t27 :
CIn file included from o../src/s2/s2coder.hr:d23*:
 /usr/local/clang/include/absl/status/status.ha:b732s:l29_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   c732o | r d )s;t
a      t| i                                       ^c
 c/usr/local/clang/include/absl/base/nullability.ho:nst std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from In file included from s2/s2latlng.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2latlng.h../src/s2/s2point.h::3227:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2coder.h::2823:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2767:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::2329:
:
/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/cord.h::733425::2962::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  733 |    425  | s t aftriice ncdo nvsoti ds tCdo:p:ysCtorridnTgo*S tarbisnlg_(ncoonnnsutl lC oMrodv&e dsFrrco,m Ssttrdi:n:gs(t)r;i
n      g| *                            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   d241s | t#)d;e
f      i| n                                                             ^e
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull 241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
_Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:In file included from 30s2/s2latlng.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2latlng.h:
:In file included from 32../src/s2/s2point.h:
:In file included from 27../src/s2/s1angle.h:
:In file included from 28../src/s2/s2coder.h:
:In file included from 23../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/status/status.h:
:751/usr/local/clang/include/absl/strings/cord.h::61437:: 47:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751   | 437  |   s t a t i c   u i n t p t r _ t   P o i n t e r T o R e p ( s In file included from t as2/s2lax_loop_shape.ccts:tu18ds:
:_In file included from :i../src/s2/s2lax_loop_shape.hsn:ttr41ei:
rnIn file included from ng../src/s2/s2loop.ha*l: :a34:b:
SsIn file included from tl../src/s2/mutable_s2shape_index.ha_:tnu30osn:
RnIn file included from eu/usr/local/clang/include/absl/container/btree_map.hpl:*l 66 adb:
ssIn file included from tl)/usr/local/clang/include/absl/container/internal/btree.h_;:n
o73      n:
| n/usr/local/clang/include/absl/strings/cord.h                                              ^u:
l582l: 37r:/usr/local/clang/include/absl/base/nullability.h) ;:warning: 
241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      :
| 22                                                            ^:
   note: 582expanded from macro 'absl_nonnull' | /usr/local/clang/include/absl/base/nullability.h
 : 241   : 24122e | :x# dpnote: elexpanded from macro 'absl_nonnull'fi
ciin  te241   | aC#bhduselnf_kinRnoaenn ngauebl(slcl o__nnNsootnn nnCuulollrl d
_*      N | oa                     ^nb
nsull_ln
o      n| n                     ^u
ll cord) : cord_(cord)In file included from  s2/s2latlng.cc{:}18
:
      In file included from | ../src/s2/s2latlng.h                                    ^:
32:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241 | /usr/local/clang/include/absl/status/status.h#:d752e:f44i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n752o | n nIn file included from  us2/s2latlng_rect.ccsl:lt18 a:
_tIn file included from iN../src/s2/s2latlng_rect.hco: n30cn:
ouIn file included from ln../src/s2/s1angle.hls:
t28       :
| sIn file included from                      ^t../src/s2/s2point.h
a:t27u:
sIn file included from _../src/s2/s2coder.hi:n23t:
eIn file included from r/usr/local/clang/include/absl/status/status.hn:a67l:
:In file included from :/usr/local/clang/include/absl/status/internal/status_internal.hS:t29a:
t/usr/local/clang/include/absl/strings/cord.hu:s480R:e39p:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  nIn file included from 480os2/s2lax_loop_shape.cc | n: n18 u :
l In file included from lu ../src/s2/s2lax_loop_shape.hsRi:enp41Tg:
o In file included from Pp../src/s2/s2loop.hoo:ii34nn:
ttIn file included from eer../src/s2/mutable_s2shape_index.hr( :
=30       :
| cIn file included from                                            ^o/usr/local/clang/include/absl/container/btree_map.h
n:s66/usr/local/clang/include/absl/base/nullability.ht:
: In file included from 241v/usr/local/clang/include/absl/container/internal/btree.h:a:22l73:u:
 e/usr/local/clang/include/absl/strings/cord.hnote: _:expanded from macro 'absl_nonnull't588
y:p17  e:241*  |  warning: #atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]db
esfli  _n588ne | o  na nb us llc_olnns;to
 n      Cn| ou                                      ^lr
ld */usr/local/clang/include/absl/base/nullability.h_ :Na241ob:sn22nl:u_ lnnote: loexpanded from macro 'absl_nonnull'
n
      n| u                     ^  l
l241  | c#odredf_i;n
e       | a                ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2latlng_rect.cc641: | 18 :
 In file included from  ../src/s2/s2latlng_rect.h :u30s:
iIn file included from n../src/s2/s1angle.hg: 28p:
oIn file included from i../src/s2/s2point.hn:t27e:
rIn file included from  ../src/s2/s2coder.h=: 23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67 :
cIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.ha:r29*:
 /usr/local/clang/include/absl/strings/cord.ha:b501s:l52_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull;  
501       | |                                  ^ 
  /usr/local/clang/include/absl/base/nullability.he:x241p:l22i:c inote: texpanded from macro 'absl_nonnull' 
Ch  u241n | k#Idteefrianteo ra(bcsolr_dn_oinnntuelrln a_lN:o:nCnourldlR
e      p| *                     ^ 
absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.hIn file included from :s2/s2latlng_rect.cc66::
18In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :../src/s2/s2latlng_rect.h73::
30:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s1angle.h655::2839:
:In file included from  ../src/s2/s2point.h:warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23:
  In file included from 655/usr/local/clang/include/absl/status/status.h | : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.he:x29p:
l/usr/local/clang/include/absl/strings/cord.hi:c504i:t40 :C hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
Ite  r504a | t o r ( ceoxnpslti cCiotr dC*h uanbksIlt_enroantnourl(lc ocnosrtd )C
o      r| d                                      ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241c | o#rdde)f;i
n      e|                                         ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2lax_loop_shape.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2lax_loop_shape.h:
:In file included from 41/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2loop.h:
:34/usr/local/clang/include/absl/strings/cord.h:
:In file included from 582../src/s2/mutable_s2shape_index.h::3730::
 In file included from /usr/local/clang/include/absl/container/btree_map.hwarning: :66type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/btree.h  :58273 | :
 /usr/local/clang/include/absl/strings/cord.h : 674 :e37x:p lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
it C  h674u | n k Rsatnagtei(cc ovnositd  CAodrvda*n caeb(sClh_anroIntneurlalt ocro*r da)b s:l _cnoorndn_u(lclo ridt),  {s}i
z      e| _                                    ^t
 n_/usr/local/clang/include/absl/base/nullability.hb:y241t:e22s:) ;note: 
expanded from macro 'absl_nonnull'      
|                                     ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2lax_loop_shape.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2lax_loop_shape.h:  41241:
 | In file included from #../src/s2/s2loop.hd:e34f:
iIn file included from n../src/s2/mutable_s2shape_index.he: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_66n:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hn:u73l:
l/usr/local/clang/include/absl/strings/cord.h :_730N:o36n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  730 |     explicit CharRange(const Cord* absl_nonnull cord) :In file included from  s2/s2latlng_rect.ccc:o18r:
dIn file included from _../src/s2/s2latlng_rect.h(:c30o:
rIn file included from d../src/s2/s1angle.h): 28{:
}In file included from 
../src/s2/s2point.h      :| 27                                   ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/status/status.h22::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull':
29:
  /usr/local/clang/include/absl/strings/cord.h241: | 641#:d33e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s641l | _ n o n nuusliln g_ Npooninnutlelr
       =|                       ^c
onst char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2lax_loop_shape.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2lax_loop_shape.h241: | 41#:
dIn file included from e../src/s2/s2loop.hf:i34n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73 :
_/usr/local/clang/include/absl/strings/cord.hN:o736n:n17u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2lax_loop_shape.cce:f18i:
nIn file included from e../src/s2/s2lax_loop_shape.h :a41b:
sIn file included from l../src/s2/s2loop.h_:n34o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from _/usr/local/clang/include/absl/container/btree_map.hN:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73
:
      | /usr/local/clang/include/absl/strings/cord.h                     ^:
795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::CorIn file included from ds2/s2latlng_rect.cc*: 18a:
bIn file included from s../src/s2/s2latlng_rect.hl:_30n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hc:o27r:
dIn file included from ,../src/s2/s2coder.h
:      23| :
                                          ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'667
:44:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e667  | a b sslt_antoincn uClolr d_ NAodnvnaunlcle
A      n| d                     ^R
ead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordIn file included from zs2/s2latlng_rect.ccI:n18f:
oIn file included from *../src/s2/s2latlng_rect.h :a30b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hG:e23t:
CIn file included from o/usr/local/clang/include/absl/status/status.hr:d67z:
IIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hf:o29F:
o/usr/local/clang/include/absl/strings/cord.hr:T730e:s36t:i nwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](

      |                           ^
  730 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23e:x pnote: lexpanded from macro 'absl_nullable'i
ci  t257  | C#hdaerfRianneg ea(bcsoln_sntu lCloarbdl*e  a_bNsull_lnonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:In file included from 28:
In file included from s2/s2hausdorff_distance_query.cc../src/s2/s2point.h::1627:
:
In file included from In file included from ../src/s2/s2hausdorff_distance_query.h../src/s2/s2coder.h::2323:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/status.h::2867:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/internal/status_internal.h::2729:
:
In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/strings/cord.h23::
736In file included from :/usr/local/clang/include/absl/status/status.h17::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h  :73623 | :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32c:
oIn file included from n/usr/local/clang/include/absl/strings/str_format.hs:t84 :
Co/usr/local/clang/include/absl/strings/internal/str_format/bind.hr:d143*: 11a:b swarning: l'enable_if' is a clang extension [-Wgcc-compat]_
nonnu  l143l |   c o r d _ ; 
        |                  ^e
nabl/usr/local/clang/include/absl/base/nullability.he:_241i:f22(:s tnote: rexpanded from macro 'absl_nonnull'_
fo  r241m | a#td_eifnitneer naabls:l:_EnnosnunruelClo n_sNtoenxnpurl(ls
)      ,|                       ^"
constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_inIn file included from ts2/s2latlng_rect.cce:r18n:
aIn file included from l../src/s2/s2latlng_rect.h:::30E:
nIn file included from s../src/s2/s1angle.hu:r28e:
CIn file included from o../src/s2/s2point.hn:s27t:
eIn file included from x../src/s2/s2coder.hp:r23(:
sIn file included from )/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatF/usr/local/clang/include/absl/strings/internal/str_format/bind.hl:u158s:h22(:a bwarning: s'enable_if' is a clang extension [-Wgcc-compat]l
::Co  r158d | *   a b s l __n_oantnturlilb uctoer_d_,(
(      e| n                                          ^abl
e_i/usr/local/clang/include/absl/base/nullability.hf:(241V:a22l:i dnote: Fexpanded from macro 'absl_nonnull'o
rm  a241t | I#mdpelf<iAnreg sa.b.s.l>_(nso)n,n u"lbla d_ Nfoonrnmualtl 
t      r| a                     ^p
")))
      |                      ^
a/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162b:l22e:
       | warning:                       ^'enable_if' is a clang extension [-Wgcc-compat]

  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66In file included from :
s2/s2latlng_rect.ccIn file included from :/usr/local/clang/include/absl/container/internal/btree.h18::
73In file included from :
../src/s2/s2latlng_rect.h:/usr/local/clang/include/absl/strings/cord.h30::
927In file included from :../src/s2/s1angle.h43::28 :
In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s2coder.h:23:
  In file included from 927/usr/local/clang/include/absl/status/status.h | : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 898 : 27 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       898  |      f r i e n d   cCoonrsdtR eCpo*r dazbIsnlf_on*u lalbasbll_en urlelpa)b;l
e       | G                                          ^e
tCor/usr/local/clang/include/absl/base/nullability.hd:z257I:n23f:o Fnote: oexpanded from macro 'absl_nullable'r
Tes  t257i | n#gd(e
f      i| n                          ^e
 ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23u:l lnote: aexpanded from macro 'absl_nullable'b
le   257_ | N#udlelfaibnlee 
a      b| s                      ^l
_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:In file included from 17s2/s2latlng_rect.cc:: 18:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2latlng_rect.h
:30:
In file included from   ../src/s2/s1angle.h932: | 28 :
 In file included from  ../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.ht: 23c:
hIn file included from a/usr/local/clang/include/absl/status/status.hr:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.hu:l927l:a43b:l ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
ata(  )927  | c o n s t ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e  CaobrsdlR_enpu*l laabbslle_ n_uNlullalbalbel er
e      p| )                      ^;

      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2lax_loop_shape.cc257: | 18#:
dIn file included from e../src/s2/s2lax_loop_shape.hf:i41n:
eIn file included from  ../src/s2/s2loop.ha:b34s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.hb:l66e:
 In file included from _/usr/local/clang/include/absl/container/internal/btree.hN:u73l:
l/usr/local/clang/include/absl/strings/cord.ha:b934l:e31
:       | warning:                       ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  934 |     void set_data(conIn file included from ss2/s2latlng_rect.cct: 18c:
hIn file included from a../src/s2/s2latlng_rect.hr:*30 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23d:
aIn file included from t/usr/local/clang/include/absl/status/status.ha:,67 :
sIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hz:e29_:
t/usr/local/clang/include/absl/strings/cord.h :n929):;26
:       | warning:                               ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  257929: | 23 :   note:  expanded from macro 'absl_nullable'v
oi  d257  | S#wdaepf(iInnel ianbesRle_pn*u lalbasbll_en o_nNnuulllla brlhes
)      ;| 
                      ^      
|                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2lax_loop_shape.ccn:e18 :
aIn file included from b../src/s2/s2lax_loop_shape.hs:l41_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 73                     ^:

/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absIn file included from ls2/s2latlng_rect.cc_:n18o:
nIn file included from n../src/s2/s2latlng_rect.hu:l30l:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
       set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MetIn file included from hs2/s2latlng.cco:d18I:
dIn file included from e../src/s2/s2latlng.hn:t32i:
fIn file included from i../src/s2/s1angle.he:r28 :
mIn file included from e../src/s2/s2point.ht:h27o:
dIn file included from )../src/s2/s2coder.h;:
23      :
|                                     ^/usr/local/clang/include/absl/status/status.h
:1031:/usr/local/clang/include/absl/base/nullability.h42::241 :22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
   2411031 |  | #idnelfiinnee  caobnsslt_ nsotnantuulsl_ i_nNtoenrnnualll:
:      S| t                     ^a
tusRep* absl_nonnuIn file included from ls2/s2lax_loop_shape.ccl: 18S:
tIn file included from a../src/s2/s2lax_loop_shape.ht:u41s:
:In file included from :../src/s2/s2loop.hR:e34p:
TIn file included from o../src/s2/mutable_s2shape_index.hP:o30i:
nIn file included from t/usr/local/clang/include/absl/container/btree_map.he:r66(:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                         ^73
:
/usr/local/clang/include/absl/strings/cord.h:989:31/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
989 |     241  |  #vdoeifdi nPer eapbesnld_Tnroenen(uClolr d_RNeopn*n ualbls
l      _| n                     ^o
nnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2latlng.ccl:
18      :
| In file included from                      ^../src/s2/s2latlng.h
:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     statIn file included from us2/s2lax_loop_shape.ccs:_18i:
nIn file included from t../src/s2/s2lax_loop_shape.he:r41n:
aIn file included from l../src/s2/s2loop.h:::34S:
tIn file included from a../src/s2/mutable_s2shape_index.ht:u30s:
RIn file included from e/usr/local/clang/include/absl/container/btree_map.hp:*66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l73_:
n/usr/local/clang/include/absl/strings/cord.ho:n994n:u30l:l  rep)|  {
      |                                 ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2hausdorff_distance_query.cc:16:
In file included from   ../src/s2/s2hausdorff_distance_query.h968: | 23 :
 In file included from  ../src/s2/s1angle.h :v28o:
iIn file included from d../src/s2/s2point.h :E27m:
pIn file included from l../src/s2/s2coder.ha:c23e:
TIn file included from r/usr/local/clang/include/absl/status/status.he:e67(:
CIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from r:s2/s2latlng.ccd29:R:
18eIn file included from :
p/usr/local/clang/include/absl/strings/cord.hIn file included from *:../src/s2/s2latlng.h 82:a:
32bIn file included from :
s/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from l:../src/s2/s1angle.h_23:n:
28oIn file included from :
n/usr/local/clang/include/absl/crc/crc32c.hIn file included from n:../src/s2/s2point.hu32:l:
27l:
/usr/local/clang/include/absl/strings/str_format.h In file included from :r../src/s2/s2coder.h115e::p2352,:
:  /usr/local/clang/include/absl/status/status.hM:warning: e1063type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t:
h13o:d I  warning: d115type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e | 
n t i  f 1063i  | e crco onmnsesttt h coshdta)rr;_*
f       oa| rb                              ^ms
alt_/usr/local/clang/include/absl/base/nullability.h_n:io241nn:tn22eu:rl nlnote: a expanded from macro 'absl_nonnull'lS
:t:aPt  au241rs | sM#eeddseFsfoairgnmeeaA tsaBCbaSsstler_*(n 
oa      nb| ns            ^ul
l_ln /usr/local/clang/include/absl/base/nullability.ho_:nN241no:un22ln:lu  lnote: plexpanded from macro 'absl_nonnull'c

)      
|                              ^241| 
 |                                                    ^#
defi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
onIn file included from   ns2/s2latlng_rect.cc241u: | l18#l:
d In file included from e_../src/s2/s2latlng_rect.hfN:io30nn:
enIn file included from  u../src/s2/s1angle.hal:bl28s
:
l      In file included from _| ../src/s2/s2point.hn                     ^:o
27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| /usr/local/clang/include/absl/strings/cord.h                     ^:
972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2hausdorff_distance_query.cc978::1636:
:In file included from  ../src/s2/s2hausdorff_distance_query.h:warning: 23type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
  In file included from 978../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.hv:o23i:
dIn file included from  /usr/local/clang/include/absl/status/status.hC:o67m:
mIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.ht:T29r:
eIn file included from e/usr/local/clang/include/absl/strings/cord.h(:c82o:
nIn file included from s/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht: 23C:
oIn file included from r/usr/local/clang/include/absl/crc/crc32c.hd:R32e:
p/usr/local/clang/include/absl/strings/str_format.h*: 155a:b36s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab  l155e |   o ledx_prleipc,i
t       | F                                   ^o
rm/usr/local/clang/include/absl/base/nullability.ha:t257C:o23u:n tnote: Cexpanded from macro 'absl_nullable'a
pt  u257r | e#(dienfti*n ea basbls_ln_onnunlullalb lpe)  _:N upl_l(apb)l e{
}      
|                             ^| 
                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2latlng_rect.cc
:18:
  In file included from 241../src/s2/s2latlng_rect.h | :#30d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl:
979      :| 30                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CIn file included from os2/s2hausdorff_distance_query.ccr:d16R:
eIn file included from p../src/s2/s2hausdorff_distance_query.h*: 23a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.hr:e23p:
,In file included from  /usr/local/clang/include/absl/status/status.hc:o67n:
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h :C29o:
rIn file included from d/usr/local/clang/include/absl/strings/cord.hz:U82p:
dIn file included from a/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:e23S:
cIn file included from o/usr/local/clang/include/absl/crc/crc32c.hp:e32&:
 /usr/local/clang/include/absl/strings/str_format.hs:c164o:p8e:, 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                             ^

/usr/local/clang/include/absl/base/nullability.h  :164241 | : 22 :i nnote: texpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bUsnlu_sneodn(n)u l{l  r_eNtounrnnu lpl_
;       | }                     ^

      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2latlng_rect.cc#:d18e:
fIn file included from i../src/s2/s2latlng_rect.hn:e30 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                     ^:

/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     In file included from vs2/s2hausdorff_distance_query.cco:i16d:
 In file included from A../src/s2/s2hausdorff_distance_query.hp:p23e:
nIn file included from d../src/s2/s1angle.hT:r28e:
eIn file included from T../src/s2/s2point.ho:I27n:
lIn file included from i../src/s2/s2coder.hn:e23d:
(In file included from C/usr/local/clang/include/absl/status/status.ho:r67d:
RIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hp:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l82_:
nIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h :t32r:
e/usr/local/clang/include/absl/strings/str_format.he:,165
:      8| :                                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:  22165: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 |   intIn file included from *s2/s2latlng_rect.cc :a18b:
sIn file included from l../src/s2/s2latlng_rect.h_:n30o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from p../src/s2/s2point.h_:;27
:
      In file included from | ../src/s2/s2coder.h       ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 /usr/local/clang/include/absl/strings/cord.hnote: :988expanded from macro 'absl_nonnull':
37:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i988n | e   a b svlo_indo nPnruelple n_dNTorneneuTlolT
r      e| e                     ^(
CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnullIn file included from  s2/s2hausdorff_distance_query.cct:r16e:
eIn file included from ,../src/s2/s2hausdorff_distance_query.h :M23e:
tIn file included from h../src/s2/s1angle.ho:d28I:
dIn file included from e../src/s2/s2point.hn:t27i:
fIn file included from i../src/s2/s2coder.he:r23 :
mIn file included from e/usr/local/clang/include/absl/status/status.ht:h67o:
dIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h;:
29      :
| In file included from                               ^/usr/local/clang/include/absl/strings/cord.h
:82:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h241::2322:
:In file included from  /usr/local/clang/include/absl/crc/crc32c.h:note: 32expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/strings/str_format.h:  380241: | 43#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a  b380s | ls_tndo:n:nsutlrli n_gN&o nSnturlAlp
p      e| n                     ^d
Format(std::string* absl_nonnull dst,
      | In file included from                                           ^s2/s2latlng_rect.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2latlng_rect.h::24130::
22In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n994n:u30l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn  u994l | l 
        |                       ^v
oid CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToIn file included from As2/s2hausdorff_distance_query.ccr:r16a:
yIn file included from (../src/s2/s2hausdorff_distance_query.hc:h23a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from d/usr/local/clang/include/absl/status/status.hs:t67):
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from ;/usr/local/clang/include/absl/strings/cord.h
:      82| :
                           ^In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/crc/crc32c.h::2232::
 /usr/local/clang/include/absl/strings/str_format.hnote: :expanded from macro 'absl_nonnull'440
:24:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e440  | aibnstl _FnPorninnutlFl( s_tNdo:n:nFuIlLlE
*       | a                     ^b
sl_nonnull output, const FormatSpec<Args...>&In file included from  s2/s2latlng_rect.ccf:o18r:
mIn file included from a../src/s2/s2latlng_rect.ht:,30
:
      In file included from | ../src/s2/s1angle.h                       ^:
28:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27241:
:In file included from 22../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h | :#29d:
e/usr/local/clang/include/absl/strings/cord.hf:i1012n:e37 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_non n1012u | l l   _ Naobnsnlu:l:lc
o      r| d                     ^_
internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2hausdorff_distance_query.cc::25716::
23In file included from :../src/s2/s2hausdorff_distance_query.h :23note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s1angle.h:28  :
257In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he: 82_:
NIn file included from u/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/crc/crc32c.he:
32      :
| /usr/local/clang/include/absl/strings/str_format.h                      ^:
469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintIn file included from Fs2/s2latlng_rect.cc(:c18h:
aIn file included from r../src/s2/s2latlng_rect.h*: 30a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.ho:u23t:
pIn file included from u/usr/local/clang/include/absl/status/status.ht:,67 :
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hd::29::
s/usr/local/clang/include/absl/strings/cord.hi:z1017e:_51t:  swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]z
e,
       | 1017                   ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241v:o22i:d  note: sexpanded from macro 'absl_nonnull'e
t_  c241o | r#ddze_fiinnfeo (acbosrld__nionntneurlnla l_:N:oCnonrudlzlI
n      f| o                     ^*
 absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonIn file included from ns2/s2latlng_rect.ccu:l18l:
 In file included from r../src/s2/s2latlng_rect.ha:w30):
 In file included from  ../src/s2/s1angle.h/:/28 :
NIn file included from O../src/s2/s2point.hL:I27N:
TIn file included from 
../src/s2/s2coder.h      :| 23                   ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
1049:56  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin e1049  | a b sslt_antoincn ublolo l_ NGoentnFullalt
A      u| x                     ^(
absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definewarning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* ab absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2latlng_rect.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2latlng_rect.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h30::
29In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/strings/cord.h28::
82In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h27::
23In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h23::
32In file included from :
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 860/usr/local/clang/include/absl/status/internal/status_internal.h::4329::
 /usr/local/clang/include/absl/strings/cord.hwarning: :1050type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
45: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]860
 |   fr i1050e | n d   v o i d   A b s l F o r m a t F l u s h ( F oarbmsalt:S:isntkr*i nagb_svli_enwo*n naublsll _snionnkn,u
l      l|                                            ^f
ragm/usr/local/clang/include/absl/base/nullability.he:n241t:)22;:
       | note:                                             ^expanded from macro 'absl_nonnull'

  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from In file included from ../src/s2/s1angle.hs2/s2latlng_rect.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2latlng_rect.h::2730:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6727:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2coder.h::2923:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::8267:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/status/internal/status_internal.h::2329:
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/strings/cord.h::321054:
:37/usr/local/clang/include/absl/strings/str_format.h:: 867:warning: 60type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1054 |      867  |     aebxspll:i:cciotr dF_oirnmtaetrSnianlk:(:sCtorr_dfRoerpm*a ta_bisnlt_enronnanlu:l:lF orrempa,t
S      i| n                                    ^k
Im/usr/local/clang/include/absl/base/nullability.hp:l241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fsi)n
e       | a                                                           ^b
sl/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
_snonnull_ln o_nNnounlnlu lTla
k      e| R                     ^e
p() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 | In file included from  s2/s2lax_loop_shape.cc :v18o:
iIn file included from d../src/s2/s2lax_loop_shape.h :C41o:
pIn file included from y../src/s2/s2loop.hT:o34A:
rIn file included from r../src/s2/mutable_s2shape_index.ha:y30S:
lIn file included from o/usr/local/clang/include/absl/container/btree_map.hw:P66a:
tIn file included from h/usr/local/clang/include/absl/container/internal/btree.h(:c73h:
a/usr/local/clang/include/absl/strings/cord.hr:*1079 :a33b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu l1079l |   d satb)s lc:o:ncsotr;d
_      i| n                                 ^t
erna/usr/local/clang/include/absl/base/nullability.hl::241::C22o:r dnote: Rexpanded from macro 'absl_nonnull'e
p*   241a | b#sdle_fnionnen ualbls lT_ankoenRneupl(l)  _&N&o;n
n      u| l                                ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absIn file included from ls2/s2lax_loop_shape.cc_:n18o:
nIn file included from n../src/s2/s2lax_loop_shape.hu:l41l:
 In file included from T../src/s2/s2loop.ha:k34e:
RIn file included from e../src/s2/mutable_s2shape_index.hp:(30):
 In file included from c/usr/local/clang/include/absl/container/btree_map.ho:n66s:
tIn file included from &/usr/local/clang/include/absl/container/internal/btree.h;:
73      :
| /usr/local/clang/include/absl/strings/cord.h                                ^:
1116:37:/usr/local/clang/include/absl/base/nullability.h :241warning: :22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
 1116   | 241  |  #cdoenfsitn ec racb_siln_tneornnnaull:l: C_rNcoCnonrudlSlt
a      t| e                     ^*
 absl_nullable MaybIn file included from es2/s2latlng_rect.ccG:e18t:
CIn file included from r../src/s2/s2latlng_rect.hc:C30o:
rIn file included from d../src/s2/s1angle.hS:t28a:
tIn file included from e../src/s2/s2point.h(:)27 :
cIn file included from o../src/s2/s2coder.hn:s23t:
;In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                    ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/strings/cord.h::231079:: 33:note:  expanded from macro 'absl_nullable'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  257 |  #1079d | e f ianbes la:b:sclo_rndu_lilnatbelren a_lN:u:lCloarbdlRee
p      *|                        ^a
bsl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2lax_loop_shape.cc
:18:
  In file included from 241../src/s2/s2lax_loop_shape.h | :#41d:
eIn file included from f../src/s2/s2loop.hi:n34e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 73_:
N/usr/local/clang/include/absl/strings/cord.ho:n1120n:u30l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2latlng_rect.cc
:18:
  In file included from 257../src/s2/s2latlng_rect.h | :#30d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
ab/usr/local/clang/include/absl/strings/cord.hl:e1140
:      49| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* In file included from as2/s2lax_loop_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_loop_shape.ho:n41n:
uIn file included from l../src/s2/s2loop.hl: 34r:
eIn file included from p../src/s2/mutable_s2shape_index.h):;30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                                                ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/strings/cord.h::221234::20 : note: warning: expanded from macro 'absl_nonnull'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | # d1234e | fiinnlei naeb sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
In file included from s2/s2latlng_rect.cc   :7818 | :
 In file included from  ../src/s2/s2latlng_rect.h : 30 :
 In file included from _../src/s2/s1angle.h_:a28t:
tIn file included from r../src/s2/s2point.hi:b27u:
tIn file included from e../src/s2/s2coder.h_:_23(:
(In file included from e/usr/local/clang/include/absl/status/status.hn:a67b:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h_:i29f:
(n/usr/local/clang/include/absl/strings/cord.h :=1146=: 100:,  warning: "type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O
nly l i1146t | eCroarld R`e0p`*  iasb sall_lnoownendu.l"l) )N)e w{E}x
t      e| r                     ^n
alRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
null _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_iIn file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_vinternal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureeConws tsetxrp,r (bso)o,l
*       | a                     ^b
sl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #def/usr/local/clang/include/absl/strings/internal/str_format/bind.hi:n158e: 22a:b swarning: l'enable_if' is a clang extension [-Wgcc-compat]_
nonn  u158l | l   _ N o n n_u_lalt
t      r| i                     ^b
ute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:/usr/local/clang/include/absl/strings/internal/str_format/bind.h44::162 :22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: 'enable_if' is a clang extension [-Wgcc-compat]
  112 |     162  |              _ _ a t t r i b u t e _ _ ( ( e n a b l e _ i fi(nVta_ltiydpFeo*r maabtsIlm_pnlo<nAnruglsl. .o.u>t()s;)
,       | "                                           ^b
ad/usr/local/clang/include/absl/base/nullability.h :f241o:r22m:a tnote:  expanded from macro 'absl_nonnull't
ra  p241" | )#)d)e
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | chIn file included from as2/s2latlng_rect.ccr:*18 :
aIn file included from b../src/s2/s2latlng_rect.hs:l30_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :F27a:
sIn file included from t../src/s2/s2coder.hI:n23t:
TIn file included from o/usr/local/clang/include/absl/status/status.hB:u67f:
fIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hr:(29i:
nt6/usr/local/clang/include/absl/strings/cord.h4:_1505t: 41i:,  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar* ab s1505l | _innolninnuel lv obiudf fCeorr)d
:      :| C                                                    ^o
py/usr/local/clang/include/absl/base/nullability.hT:o241A:r22r:a ynote: Iexpanded from macro 'absl_nonnull'm
pl  (241c | h#adre*f ianbes la_bnsoln_nnuolnln udlslt )_ Ncoonnnsutl l{

            | |                      ^                                        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2furthest_edge_query.ccl:
16      :
| In file included from                      ^../src/s2/s2furthest_edge_query.h
:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToIn file included from Bs2/s2latlng_rect.ccu:f18f:
eIn file included from r../src/s2/s2latlng_rect.hS:i30z:
eIn file included from )../src/s2/s1angle.h;:
28      :
| In file included from     ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/macros.hIn file included from :../src/s2/s2coder.h251::2318:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :25129 | :
 /usr/local/clang/include/absl/strings/cord.h :_1514_:a29t:t rwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ute _1514_ | ( ( d i acgonrods_ei_nitfe(r_n_ablu:i:lCtoirnd_Roebpj*e catb_ssli_zneo(nOnbujl,l  0t)r e<e )N ,{ 
\      
|                                   ^| 
                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2furthest_edge_query.cc#:d16e:
fIn file included from i../src/s2/s2furthest_edge_query.hn:e33 :
aIn file included from b../src/s2/s2closest_edge_query_base.hs:l32_:
nIn file included from o/usr/local/clang/include/absl/container/btree_set.hn:n65u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :_70N:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2latlng_rect.cce:f18i:
nIn file included from e../src/s2/s2latlng_rect.h :a30b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* abIn file included from ss2/s2furthest_edge_query.ccl:_16n:
oIn file included from n../src/s2/s2furthest_edge_query.hn:u33l:
lIn file included from  ../src/s2/s2closest_edge_query_base.ht:r32e:
eIn file included from )/usr/local/clang/include/absl/container/btree_set.h :{65
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                            ^:
70:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.h::241198::
22In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
241/usr/local/clang/include/absl/strings/numbers.h | :#205d:e5f:i nwarning: e'diagnose_if' is a clang extension [-Wgcc-compat] 
abs  l205_ | n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| N                     ^E
ED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(ObIn file included from js2/s2latlng_rect.cc,: 180:
)In file included from  ../src/s2/s2latlng_rect.h<: 30N:
,In file included from  ../src/s2/s1angle.h\:
28      :
| In file included from                  ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2furthest_edge_query.cc/usr/local/clang/include/absl/strings/cord.h::161530:
:In file included from 55../src/s2/s2furthest_edge_query.h:: 33warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h :153065 | :
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.hl:i70n:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.hC:o198r:
dIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::C116h:
uIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hk:I23t:
e/usr/local/clang/include/absl/strings/numbers.hr:a206t:o7r:: :warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
unk  I206t | ecrhaatro*r (acbosnls_tn oCnonrudl*l  aFbasslt_InnotnTnouBlulf fceorr(di)n t{1
2      8|                                                        ^i
, c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ibnuef faebrs)l
_      n| o      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* aIn file included from bs2/s2furthest_edge_query.ccs:l16_:
nIn file included from o../src/s2/s2furthest_edge_query.hn:n33u:
lIn file included from l../src/s2/s2closest_edge_query_base.h :p32c:
)In file included from 
/usr/local/clang/include/absl/container/btree_set.h      :| 65                                                   ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h241::19822:
:In file included from  /usr/local/clang/include/absl/strings/str_cat.hnote: :expanded from macro 'absl_nonnull'116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h  :24123 | :
#/usr/local/clang/include/absl/strings/numbers.hd:e303f:i60n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o303n | niunllli n_eN osninzuel_lt
       F| a                     ^s
tHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCounIn file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnulnln uolult )_ N{o
n      n| u                                                   ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
tCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2furthest_edge_query.cc
:16:
In file included from ../src/s2/s2furthest_edge_query.h: 331666:
 | In file included from i../src/s2/s2closest_edge_query_base.hn:l32i:
nIn file included from e/usr/local/clang/include/absl/container/btree_set.h :C65o:
rIn file included from d/usr/local/clang/include/absl/container/internal/btree.h :C70o:
rIn file included from d/usr/local/clang/include/absl/container/internal/layout.h:::198A:
dv/usr/local/clang/include/absl/strings/str_cat.ha:n398c:e24A:n dwarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
ad(Ch  a398r | I t eArlapthoarN*u ma(bcsoln_snto ncnhualrl*  iatb,s
l      _| n                                               ^u
llabl/usr/local/clang/include/absl/base/nullability.he: 241c:_22s:t rnote:  expanded from macro 'absl_nonnull' 
//   241N | O#LdIeNfTi(nreu natbismle_/neoxnpnluilcli t_)N
o      n| n                       ^u
ll
      /usr/local/clang/include/absl/base/nullability.h| :                     ^257
:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const charIn file included from *s2/s2lax_polygon_shape.cc :a18b:
sIn file included from l../src/s2/s2lax_polygon_shape.h_:n31u:
lIn file included from l../src/s2/encoded_s2point_vector.ha:b29l:
eIn file included from  ../src/s2/s2coder.hd:a23t:
aIn file included from (/usr/local/clang/include/absl/status/status.h): 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
{In file included from  /usr/local/clang/include/absl/strings/cord.hr:e82t:
uIn file included from r/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn: 23p:
iIn file included from e/usr/local/clang/include/absl/crc/crc32c.hc:e32_:
./usr/local/clang/include/absl/strings/str_format.hd:a860ta(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:29:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:29:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289In file included from  | #des2/s2latlng_rect.ccf:i18n:
eIn file included from  ../src/s2/s2latlng_rect.ha:b30s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:i27l:
iIn file included from t../src/s2/s2coder.hy:_23u:
nIn file included from k/usr/local/clang/include/absl/status/status.hn:o67w:
n /usr/local/clang/include/absl/status/internal/status_internal.h_:N119u:l14l:_ uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
pecifi  e119d | 
        | S                                 ^t
atusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 | In file included from  s2/s2lax_loop_shape.cc :S18t:
aIn file included from t../src/s2/s2lax_loop_shape.hu:s41R:
eIn file included from p../src/s2/s2loop.h*: 34a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_30n:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l /usr/local/clang/include/absl/container/internal/btree_container.hC:l523o:n31e:A nwarning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]U
nref  (523
 |        |               ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241f | a#ldseef,i nfea lasbes)l;_
n      o| n                              ^n
ull/usr/local/clang/include/absl/container/internal/btree_container.h :_496N:o9n:n unote: lmacro 'ABSL_INTERNAL_X' defined herel

      |                      ^  
496 | #define ABSL_INTERNAL_X(Func,In file included from  s2/s2latlng_rect.ccC:a18l:
lIn file included from e../src/s2/s2latlng_rect.he:,30 :
KIn file included from Q../src/s2/s1angle.hu:a28l:
,In file included from  ../src/s2/s2point.hM:Q27u:
aIn file included from l../src/s2/s2coder.h,: 23K:
VIn file included from a/usr/local/clang/include/absl/status/status.hl:u67e:
,/usr/local/clang/include/absl/status/internal/status_internal.h :M128V:a14l:u ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
...  )128  |      S t\a
t      u| s        ^R
ep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from In file included from s2/s2loop.ccs2/s2lax_loop_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2loop.h../src/s2/s2lax_loop_shape.h::2941:
:
In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/types/span.h::34733:
:In file included from 31../src/s2/mutable_s2shape_index.h:: 30:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3  :733  | warning: cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nste  x524p | r   SApBaSnL<_TI>N TMEaRkNeASLp_aXn((iTn*s earbts_lo_rn_ualslsaibglne,  pitnrs eArBtS_Lo_rA_TaTsRsIiBgUnT_Ei_mLpIlF,E TcIoMnEs_tB O&U,N Dc,o
n      s| t                              ^ 
&,
      /usr/local/clang/include/absl/base/nullability.h| :  ^257
:23:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 511expanded from macro 'absl_nullable':
52:   note: 257expanded from macro 'ABSL_INTERNAL_X' | 
#de  f511i | n e   a b s l _ n u lAlBaSbLl_eI N_TNEuRlNlAaLb_lAeT
T      R| I                      ^B
UTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.hIn file included from :s2/s2loop.cc31::189:
:In file included from  ../src/s2/s2loop.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here29
:
/usr/local/clang/include/absl/types/span.h   :31739 | :#21d:e fwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
e AB  S739L | _SIpNaTnE<RTN>A LM_aIkFe_Stpraune((Ti*f _asbastli_snfuilelda,b l.e. .b)e giifn_ sAaBtSiLs_fAiTeTdR
I      B| U        ^T
E_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2lax_loop_shape.cc#:d18e:
fIn file included from i../src/s2/s2lax_loop_shape.hn:e41 :
aIn file included from b../src/s2/s2loop.hs:l34_:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30a:
bIn file included from l/usr/local/clang/include/absl/container/btree_map.he: 67_:
N/usr/local/clang/include/absl/container/internal/btree_container.hu:l524l:a3b:l ewarning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                       ^
  524 |   ABSL_IIn file included from Ns2/s2loop.ccT:E18R:
NIn file included from A../src/s2/s2loop.hL:_29X:
(/usr/local/clang/include/absl/types/span.hi:n740s:e21r:t _warning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
_a  s740s | i g n ,   i n s e r t _ o r _ a s sTi*g na_bismlp_ln,u lcloanbslte  &e,n dc)o nnsote x&c,e
p      t|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{

      |                       ^525
 |  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e ffianles ea,b stlr_uneu)l;l
a      b| l                  ~~~~~~~~~~~~e
 _N/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:a47b:l enote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                       ^
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:29:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable/usr/local/clang/include/absl/container/internal/btree_container.h :p527t:r30 :A Bwarning: Spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L
_AT  T527R | I B U T E _ L I F E T I M E _ B O U NtDr,u es,i zfea_lts es)i;z
e      )|                               ^n
oe/usr/local/clang/include/absl/container/internal/btree_container.hx:c496e:p9t:  {note: 
macro 'ABSL_INTERNAL_X' defined here      
|        ^
  496 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'A
BS  L257_ | I#NdTeEfRiNnAeL _aXb(sFlu_nncu,l lCaablllee e_,N uKlQluaabll,e 
M      Q| u                      ^a
l, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:29:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:29:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_In file included from os2/s2lax_polyline_shape.ccr:_18a:
sIn file included from s../src/s2/s2lax_polyline_shape.hi:g27n:
,In file included from  ../src/s2/util/coding/coder.hi:n36s:
eIn file included from r../src/s2/base/casts.ht:_34o:
rIn file included from _/usr/local/clang/include/absl/log/log.ha:s209s:
iIn file included from g/usr/local/clang/include/absl/log/internal/log_impl.hn:_20i:
mIn file included from p/usr/local/clang/include/absl/log/absl_vlog_is_on.hl:,63 :
cIn file included from o/usr/local/clang/include/absl/log/internal/vlog_config.hn:s40t:
 &,/usr/local/clang/include/absl/strings/string_view.h :&53&:,54 :t rwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
,
      |   ^
   /usr/local/clang/include/absl/container/internal/btree_container.h53: | 509c:o52n:s tnote: eexpanded from macro 'ABSL_INTERNAL_X'x
pr   s509t | r i n g _ v i e w   NAuBlSlLS_aIfNeTSEtRrNiAnLg_VAiTeTwR(IcBoUnTsEt_ CcAhPaTrU*R EaDb_sBlY_(ntuhlilsa)b)l,e   p )   { 
        |                                                       ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
    \257
 |       #| d                                                   ^e
fi/usr/local/clang/include/absl/container/internal/common.hn:e31 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_true' defined heren
ull   a31b | l#ed e_fNiunlel aAbBlSeL
_      I| N                      ^T
ERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |           In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 27t:
rIn file included from u../src/s2/util/coding/coder.he:)36;:

In file included from       ../src/s2/base/casts.h| :                  ~~~~~34
:
In file included from /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/container/internal/btree_container.h::209509:
:In file included from 47/usr/local/clang/include/absl/log/internal/log_impl.h:: 20note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
  /usr/local/clang/include/absl/log/internal/vlog_config.h509: | 49 : 37 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      A49B | SiLn_tI NRTeEgRiNsAtLe_rAATnTdRIInBiUtTiEa_lCiAzPeT(UVRLEoDg_SBiYt(et*h iasb)s)l,_ n o n n u l l   v ) ; 
        |                                      ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :\ 
note:       expanded from macro 'absl_nonnull'| 
                                              ^~~~
  241 | #defi/usr/local/clang/include/absl/container/internal/btree_container.hn:e537 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
on/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l52 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l511
 |        |                       ^ 
       ABSL_INTERNAL_ATTRIBUTE_CAPTUIn file included from Rs2/s2lax_polyline_shape.ccE:D18_:
BIn file included from Y../src/s2/s2lax_polyline_shape.h(:t27h:
iIn file included from s../src/s2/util/coding/coder.h):)36):
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 63 :\43
:       | warning:                                                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/common.h:31   :639 | :   note: emacro 'ABSL_INTERNAL_IF_true' defined herex
pli   c31i | t# dceofnisntee xApBrS LV_LIoNgTSEiRtNeA(Lc_oInFs_tt rcuhea(ri*f _asbastli_snfoinendu,l l. .f.))
       i| f                                          ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: 
expanded from macro 'absl_nonnull'      
|         ^  
241 | #define absl_nonnIn file included from us2/s2lax_loop_shape.ccl:l18 :
_In file included from N../src/s2/s2lax_loop_shape.ho:n41n:
uIn file included from l../src/s2/s2loop.hl:
34      :
| In file included from                      ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, conIn file included from ss2/s2lax_polyline_shape.cct: 18&:
,In file included from  ../src/s2/s2lax_polyline_shape.h&:&27,:
 In file included from t../src/s2/util/coding/coder.hr:u36e:
,In file included from 
../src/s2/base/casts.h      :| 34  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/log/log.h  :538209 | :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 96 : 60 :   warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue);   
96       | |                    ~~~~~ 
fri/usr/local/clang/include/absl/container/internal/btree_container.he:n511d: 47i:n tnote:  expanded from macro 'ABSL_INTERNAL_X'l
og_  i511n | t e r n a l : : R e gAiBsStLe_rIANnTdEIRnNiAtLi_aAlTiTzReI(BVULToEg_SCiAtPeT*U RaEbDs_lB_Yn(otnhniusl)l) )v ) ; 
        |                                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d\e
f      i| n                                              ^~~~e
 absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define/usr/local/clang/include/absl/container/internal/btree_container.h :a540b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null   540_ | N o nAnBuSlLl_
I      N| T                     ^E
RNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^In file included from 
s2/s2lax_polyline_shape.cc:/usr/local/clang/include/absl/container/internal/btree_container.h18::
496In file included from :../src/s2/s2lax_polyline_shape.h9::27 :
note: In file included from macro 'ABSL_INTERNAL_X' defined here../src/s2/util/coding/coder.h
:36:
In file included from   ../src/s2/base/casts.h496: | 34#:
dIn file included from e/usr/local/clang/include/absl/log/log.hf:i209n:
eIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hA:B20S:
LIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hI:N63T:
ERN/usr/local/clang/include/absl/log/internal/vlog_config.hA:L133_:X37(:F unwarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 Calle  e133, |  iKnQtu aRle,g iMsQtuearlA,n dKIVnailtuiea,l iMzVea(lVuLeo,g S.i.t.e)*   a b s l\_
n      o| n        ^n
ull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable /usr/local/clang/include/absl/container/internal/btree_container.hS:e546t:V3M:o dwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
eLis  t546H | e a dAFBoSrLT_eIsNtTOEnRlNyA(L
_      X| (          ^i
ns/usr/local/clang/include/absl/base/nullability.he:r257t:_23o:r _note: aexpanded from macro 'absl_nullable's
si  g257n | ,# dienfsienret _aobrs_la_snsuilglna_bilmep l_,N u&l&l,a bcloen
s      t|                        ^&
, true,In file included from 
s2/s2lax_polyline_shape.cc      :| 18  ^:

In file included from ../src/s2/s2lax_polyline_shape.h:/usr/local/clang/include/absl/container/internal/btree_container.h27::
509In file included from :../src/s2/util/coding/coder.h52::36 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/base/casts.h
:34:
In file included from   /usr/local/clang/include/absl/log/log.h509: | 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63A:
B/usr/local/clang/include/absl/log/internal/vlog_config.hS:L158_:I15N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL  _158A | T T R I BVULToEg_SCiAtPeT*U RaEbDs_lB_Yn(utlhliasb)l)e,  v ) ; 
        |                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  #\d
e      f| i                                                   ^n
e /usr/local/clang/include/absl/container/internal/common.ha:b31s:l9_:n unote: lmacro 'ABSL_INTERNAL_IF_true' defined herel
abl   e31  | _#Nduelflianbel eA
B      S| L                      ^_
INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),        /usr/local/clang/include/absl/container/internal/btree_container.h : 522 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       522  |   \ 
A      B| S                                                   ^L
_IN/usr/local/clang/include/absl/container/internal/common.hT:E31R:N9A:L _note: Xmacro 'ABSL_INTERNAL_IF_true' defined here(
ins   e31r | t#_doerf_ianses iAgBnS,L _iInNsTeErRtN_AoLr__IaFs_stirgune_(iimfp_ls,a tciosnfsite d&,,  .c.o.n)s ti f&_,s
a      t| i  ^s
fie/usr/local/clang/include/absl/container/internal/btree_container.hd:
509      :| 52        ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSLIn file included from _s2/s2lax_loop_shape.ccI:N18T:
EIn file included from R../src/s2/s2lax_loop_shape.hN:A41L:
_In file included from A../src/s2/s2loop.hT:T34R:
IIn file included from B../src/s2/mutable_s2shape_index.hU:T30E:
_In file included from C/usr/local/clang/include/absl/container/btree_map.hA:P67T:
U/usr/local/clang/include/absl/container/internal/btree_container.hR:E552D:_3B:Y (warning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
is)),    552  |      A B S L _ I N T E R N A L _ X ( i n s\e
r      t| _                                                   ^o
r_assi/usr/local/clang/include/absl/container/internal/common.hg:n32,: 9i:n snote: emacro 'ABSL_INTERNAL_IF_false' defined herer
t_o   r32_ | a#sdseifginn_ei mApBlS,L _&I&N,T E&R&N,A Lt_rIuFe_,f aflasles(ei)f;_
s      a| t  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
sfi/usr/local/clang/include/absl/container/internal/btree_container.he:d509,: 47.:. .note: )expanded from macro 'ABSL_INTERNAL_X' 
__VA  _509A | R G S _ _ 
        |          ^ 
 ABSL_INTERIn file included from Ns2/s2furthest_edge_query.ccA:L16_:
AIn file included from T../src/s2/s2furthest_edge_query.hT:R33I:
BIn file included from U../src/s2/s2closest_edge_query_base.hT:E32_:
CIn file included from A/usr/local/clang/include/absl/container/btree_set.hP:T66U:
R/usr/local/clang/include/absl/container/internal/btree_container.hE:D522_:B3Y:( twarning: hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
s))  ,522  |      A B S L _ I N T E R N A L _ X ( i n s e r\t
_      o| r                                              ^~~~_
assign, insert/usr/local/clang/include/absl/container/internal/btree_container.h_:o552r:_3a:s swarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]g
n_/usr/local/clang/include/absl/container/internal/btree_container.hi:m511p:l52,:  cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
st   &511, |   c o n s t   & , 
       A| B  ^S
L_/usr/local/clang/include/absl/container/internal/btree_container.hI:N511T:E52R:N Anote: Lexpanded from macro 'ABSL_INTERNAL_X'_
ATT  R511I | B U T E _ C A P T U RAEBDS_LB_YI(NtThEiRsN)A)L)_ A T T R I B U T E _ C A P T U R E D _ B Y ( t h\i
s      )| )                                                   ^)
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # d e f i n e  \A
B      S| L                                                   ^_
IN/usr/local/clang/include/absl/container/internal/common.hT:E32R:N9A:L _note: Imacro 'ABSL_INTERNAL_IF_false' defined hereF
_f   a32l | s#ed(eiffi_nsea tAiBsSfLi_eIdN,T E.R.N.A)L __I_FV_Af_aAlRsGeS(_i_f
_      s| a        ^t
isfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #In file included from ds2/s2lax_loop_shape.cce:f18i:
nIn file included from e../src/s2/s2lax_loop_shape.h :A41B:
SIn file included from L../src/s2/s2loop.h_:I34N:
TIn file included from E../src/s2/mutable_s2shape_index.hR:N30A:
LIn file included from _/usr/local/clang/include/absl/container/btree_map.hX:(67F:
u/usr/local/clang/include/absl/container/internal/btree_container.hn:c553,: 78C:a lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
e, K  Q553u | a l ,A BMSQLu_aIlN,T EKRVNaAlLu_eX,( iMnVsaelrute_,o r._.a.s)s i g n ,  \i
n      s| e        ^r
t_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_/usr/local/clang/include/absl/container/internal/btree_container.hs:a553t:i3s:f iwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
, ..  .553) |   _ _AVBAS_LA_RIGNST_E_R
N      | A        ^L
_X(insert_or_In file included from as2/s2furthest_edge_query.ccs:s16i:
gIn file included from n../src/s2/s2furthest_edge_query.h,: 33i:
nIn file included from s../src/s2/s2closest_edge_query_base.he:r32t:
_In file included from o/usr/local/clang/include/absl/container/btree_set.hr:_66a:
s/usr/local/clang/include/absl/container/internal/btree_container.hs:i524g:n3_:i mwarning: ppassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
, &&  ,524  | & & ,A BtSrLu_eI,N TtErRuNeA)L;_
X      (| i  ^n
se/usr/local/clang/include/absl/container/internal/btree_container.hr:t509_:o52r:_ anote: sexpanded from macro 'ABSL_INTERNAL_X's
ign  ,509  | i n s e r t _ o r _ aAsBsSiLg_nI_NiTmEpRlN,A Lc_oAnTsTtR I&B,U TcEo_nCsAtP T&U,R
E      D| _  ^B
Y(/usr/local/clang/include/absl/container/internal/btree_container.ht:h511i:s52):) ,note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _ I N\T
E      R| N                                                   ^A
L_/usr/local/clang/include/absl/container/internal/common.hA:T31T:R9I:B Unote: Tmacro 'ABSL_INTERNAL_IF_true' defined hereE
_CA   P31T | U#RdEeDf_iBnYe( tAhBiSsL)_)I)N T E R N A L _ I F _ t r u e ( i f _ s a t i s f\i
e      d| ,                                                   ^ 
../usr/local/clang/include/absl/container/internal/common.h.:)31 :i9f:_ snote: amacro 'ABSL_INTERNAL_IF_true' defined heret
is   f31i | e#dd
e      f| i        ^n
e ABSL_INTERNAL_IF_true(if_sIn file included from as2/s2lax_loop_shape.cct:i18s:
fIn file included from i../src/s2/s2lax_loop_shape.he:d41,:
 In file included from .../src/s2/s2loop.h.:.34):
 In file included from i../src/s2/mutable_s2shape_index.hf:_30s:
aIn file included from t/usr/local/clang/include/absl/container/btree_map.hi:s67f:
i/usr/local/clang/include/absl/container/internal/btree_container.he:d553
:      3| :        ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTEIn file included from Rs2/s2furthest_edge_query.ccN:A16L:
_In file included from X../src/s2/s2furthest_edge_query.h(:i33n:
sIn file included from e../src/s2/s2closest_edge_query_base.hr:t32_:
oIn file included from r/usr/local/clang/include/absl/container/btree_set.h_:a66s:
s/usr/local/clang/include/absl/container/internal/btree_container.hi:g524n:,3 :i nwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
rt_or_  a524s | s i gAnB_SiLm_pIlN,T E&R&N,A L&_&X,( itnrsueer,t _torru_ea)s;s
i      g| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 in/usr/local/clang/include/absl/container/internal/btree_container.hs:e509r:t47_:o rnote: _expanded from macro 'ABSL_INTERNAL_X'a
ssig  n509_ | i m p l ,   c o n s tA B&S,L _cIoNnTsEtR N&A,L
_      A| T  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~T
RI  B525U | T E _ C A P T U R E D _ B Y ( t h i sf)a)l,s e ,   t r u e ) ; 
        |                    ~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 47 :   note: \expanded from macro 'ABSL_INTERNAL_X'

      |                                               ^~~~
  511 |      /usr/local/clang/include/absl/container/internal/btree_container.h : 553 : 3 :A Bwarning: Spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L
_/usr/local/clang/include/absl/container/internal/btree_container.hI:N511T:E52R:N Anote: Lexpanded from macro 'ABSL_INTERNAL_X'_
ATT  R511I | B U T E _ C A P T U RAEBDS_LB_YI(NtThEiRsN)A)L)_ A T T R I B U T E _ C A P T U R E D _ B Y ( t h\i
s      )| )                                              ^~~~)
                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/container/internal/btree_container.h::34527:
:In file included from 30../src/s2/mutable_s2shape_index.h:: 30warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67  :
527/usr/local/clang/include/absl/container/internal/btree_container.h | : 553 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
       553  |      A BtSrLu_eI,N TfEaRlNsAeL)_;X
(      i| n                             ^s
er/usr/local/clang/include/absl/container/internal/btree_container.ht:_496o:r9_:a snote: smacro 'ABSL_INTERNAL_X' defined herei
gn,   496i | n#sdeerfti_noer _AaBsSsLi_gInN_TiEmRpNlA,L _&X&(,F u&n&c,,  tCraulel,e et,r uKeQ)u;a
l      ,|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~M
Qua/usr/local/clang/include/absl/container/internal/btree_container.hl:,511 :K47V:a lnote: uexpanded from macro 'ABSL_INTERNAL_X'e
, M  V511a | l u e ,   . . . )    A B S L\_
I      N| T        ^E
RNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                   /usr/local/clang/include/absl/container/internal/btree_container.h : 555 : 3 :\ 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                                   ^

/usr/local/clang/include/absl/container/internal/common.h:32  :5559 | :   note: Amacro 'ABSL_INTERNAL_IF_false' defined hereB
SL_   I32N | T#EdReNfAiLn_eX (AiBnSsLe_rItN_ToErR_NaAsLs_iIgFn_,f ailnssee(ritf__osra_taisssfiigend_,h i.n.t._)i m_p_lV,A _cAoRnGsSt_ _&
,      
|               ^| 
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #deIn file included from fs2/s2furthest_edge_query.cci:n16e:
 In file included from A../src/s2/s2furthest_edge_query.hB:S33L:
_In file included from I../src/s2/s2closest_edge_query_base.hN:T32E:
RIn file included from N/usr/local/clang/include/absl/container/btree_set.hA:L66_:
I/usr/local/clang/include/absl/container/internal/btree_container.hF:_529f:a29l:s ewarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
f_s  a529t | i s f i e d ,   . . . )   _ _ V A _ AtRrGuSe_,_ 
t      r| u        ^e
);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | In file included from #s2/s2lax_loop_shape.ccd:e18f:
iIn file included from n../src/s2/s2lax_loop_shape.he: 41A:
BIn file included from S../src/s2/s2loop.hL:_34I:
NIn file included from T../src/s2/mutable_s2shape_index.hE:R30N:
AIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:X67(:
F/usr/local/clang/include/absl/container/internal/btree_container.hu:n555c:,3 :C awarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
ee,   K555Q | u a lA,B SMLQ_uIaNlT,E RKNVAaLl_uXe(,i nMsVearltu_eo,r _.a.s.s)i g n ,   i\n
s      e| r        ^t
_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))             /usr/local/clang/include/absl/container/internal/btree_container.h : 528 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  \
        528|  |                                                    ^ 
 A/usr/local/clang/include/absl/container/internal/common.hB:S32L:_9I:N Tnote: Emacro 'ABSL_INTERNAL_IF_false' defined hereR
NAL   _32X | (#idnesfeirnte_ oArB_SaLs_sIiNgTnE,R NiAnLs_eIrFt__foarl_saes(siifg_ns_aitmipslf,i ecdo,n s.t. .&),  _c_oVnAs_tA R&G,S
_      _| 
  ^      
|         ^/usr/local/clang/include/absl/container/internal/btree_container.h
:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_iIn file included from ms2/s2lax_loop_shape.ccp:l18,:
 In file included from c../src/s2/s2lax_loop_shape.ho:n41s:
tIn file included from  ../src/s2/s2loop.h&:,34 :
cIn file included from o../src/s2/mutable_s2shape_index.hn:s30t:
 In file included from &/usr/local/clang/include/absl/container/btree_map.h,:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
558:  3529: |   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       558  |      A B S L _ I NtTrEuReN,A Lt_rXu(ei)n;s
e      r| t                  ~~~~~~~~~~~_
or_/usr/local/clang/include/absl/container/internal/btree_container.ha:s509s:i47g:n ,note:  expanded from macro 'ABSL_INTERNAL_X'i
ns  e509r | t _ o r _ a s s i g nA_BhSiLn_tI_NiTmEpRlN,A Lc_oAnTsTtR I&B,U
T      E| _  ^C
AP/usr/local/clang/include/absl/container/internal/btree_container.hT:U509R:E52D:_ Bnote: Yexpanded from macro 'ABSL_INTERNAL_X'(
thi  s509) | ) ,                  A B S L _ I N T E R N A L _ A T\T
R      I| B                                              ^~~~U
TE_CAPT/usr/local/clang/include/absl/container/internal/btree_container.hU:R528E:D3_:B Ywarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
h/usr/local/clang/include/absl/container/internal/btree_container.hi:s511):)52,:   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _\I
N      T| E                                                   ^R
NA/usr/local/clang/include/absl/container/internal/common.hL:_32A:T9T:R Inote: Bmacro 'ABSL_INTERNAL_IF_false' defined hereU
TE_   C32A | P#TdUeRfEiDn_eB YA(BtShLi_sI)N)T)E R N A L _ I F _ f a l s e ( i f _ s a t i s f i\e
d      ,|                                                     ^.
../usr/local/clang/include/absl/container/internal/common.h): 31_:_9V: Anote: _macro 'ABSL_INTERNAL_IF_true' defined hereA
RGS   _31_ | 
#      d| e        ^f
ine ABSL_INTERNAL_IIn file included from Fs2/s2lax_loop_shape.cc_:t18r:
uIn file included from e../src/s2/s2lax_loop_shape.h(:i41f:
_In file included from s../src/s2/s2loop.ha:t34i:
sIn file included from f../src/s2/mutable_s2shape_index.hi:e30d:
,In file included from  /usr/local/clang/include/absl/container/btree_map.h.:.67.:
)/usr/local/clang/include/absl/container/internal/btree_container.h :i558f:_3s:a twarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
fied  
558       | |          ^ 
ABSL_INTERNAL_X(In file included from is2/s2furthest_edge_query.ccn:s16e:
rIn file included from t../src/s2/s2furthest_edge_query.h_:o33r:
_In file included from a../src/s2/s2closest_edge_query_base.hs:s32i:
gIn file included from n/usr/local/clang/include/absl/container/btree_set.h,: 66i:
n/usr/local/clang/include/absl/container/internal/btree_container.hs:e528r:t3_:o rwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
ssign  _528h | i n tA_BiSmLp_lI,N TcEoRnNsAtL _&X,(
i      n| s  ^e
rt/usr/local/clang/include/absl/container/internal/btree_container.h_:o511r:_52a:s snote: iexpanded from macro 'ABSL_INTERNAL_X'g
n,   i511n | s e r t _ o r _ a s sAiBgSnL__iImNpTlE,R NcAoLn_sAtT T&R,I BcUoTE_CAnPsTtU R&E,D
_      B| Y  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(
th  i529s | ) ) )                                t r u e ,   t r u\e
)      ;| 
                                                   ^      
|                   ~~~~~~~~~~~/usr/local/clang/include/absl/container/internal/common.h
:31:9/usr/local/clang/include/absl/container/internal/btree_container.h:: 511note: :macro 'ABSL_INTERNAL_IF_true' defined here47
: note:    expanded from macro 'ABSL_INTERNAL_X'31
 | #d  e511f | i n e   A B S L _ I NATBESRLN_AILN_TIEFR_NtArLu_eA(TiTfR_IsBaUtTiEs_fCiAePdT,U R.E.D._)B Yi(ft_hsiast)i)s)f i e d 
        |          ^ 
                In file included from \s2/s2lax_loop_shape.cc
:      18| :
                                              ^~~~In file included from 
../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |        /usr/local/clang/include/absl/container/internal/btree_container.h : 532 : 24 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
    c532o | n s t   & ,   f a l s e ,   t r u e ,f
a      l| s                  ~~~~~~~~~~~~~~~~~~~~~e
);  
560       | |                         ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
      496  | c#odnesfti_nie ABStLe_rIaNtToErR(NhAiLn_tX)( FAuBnScL,_ ICNaTlElReNeA,L _KCQOuMaMlA,) ;M
Q      u| a                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
, K/usr/local/clang/include/absl/container/internal/btree_container.hV:a511l:u47e:,  note: Mexpanded from macro 'ABSL_INTERNAL_X'V
alu  e511, |   . . . )           \A
B      S| L        ^_
INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(inse/usr/local/clang/include/absl/container/internal/btree_container.hr:t561_:o3r:_ awarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
ign,   561i | n s eArBtS_Lo_rI_NaTsEsRiNgAnL__iXm(piln,s ecrotn_sotr _&a,s s&i&g,n ,f ailnssee,r
t      _| o  ^r
_a/usr/local/clang/include/absl/container/internal/btree_container.hs:s511i:g52n:_ hnote: iexpanded from macro 'ABSL_INTERNAL_X'n
t_i  m511p | l ,   c o n s t   & ,A
B      S| L  ^_
IN/usr/local/clang/include/absl/container/internal/btree_container.hT:E509R:N52A:L _note: Aexpanded from macro 'ABSL_INTERNAL_X'T
TRI  B509U | T E _ C A P T U R E DA_BBSYL(_tIhNiTsE)R)N)A L _ A T T R I B U T E _ C A P T U R E D _ B Y (\t
h      i| s                                                   ^)
),/usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # d e f i n e   A B\S
L      _| I                                                   ^N
TE/usr/local/clang/include/absl/container/internal/common.hR:N31A:L9_:I Fnote: _macro 'ABSL_INTERNAL_IF_true' defined heref
als   e31( | i#fd_esfaitnies fAiBeSdL,_ I.N.T.E)R N_A_LV_AI_FA_RtGrSu_e_(
i      f| _        ^s
atisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18In file included from :
s2/s2furthest_edge_query.ccIn file included from :../src/s2/s2lax_loop_shape.h16::
41In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :../src/s2/s2loop.h33::
34In file included from :
../src/s2/s2closest_edge_query_base.hIn file included from :../src/s2/mutable_s2shape_index.h32::
30In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h66::
67/usr/local/clang/include/absl/container/internal/btree_container.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h534::56123::3 :warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  534 |      561  |      A B S L _ I N T E R N AtLr_uXe()i;n
s      e| r                      ^t
_o/usr/local/clang/include/absl/container/internal/btree_container.hr:_496a:s9s:i gnote: nmacro 'ABSL_INTERNAL_X' defined here,
 in  s496e | r#td_eofri_naes sAiBgSnL__hIiNnTtE_RiNmApLl_,X (cFounnsct,  &C,a
l      l| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
,   K562Q | u a l ,   M Q u a l ,   K V a l u e ,c oMnVsatl u&e,,  t.r.u.e),   f a l s\e
,      
|               ^| 
                  ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(/usr/local/clang/include/absl/container/internal/btree_container.ht:h533i:s3):) ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       533  |      A B S L _ I N T E R N A L _\X
(      i| n                                              ^~~~s
ert_or_/usr/local/clang/include/absl/container/internal/btree_container.ha:s561s:i3g:n ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ns/usr/local/clang/include/absl/container/internal/btree_container.he:r511t:_52o:r _note: aexpanded from macro 'ABSL_INTERNAL_X's
sig  n511_ | i m p l ,   c o n s AtB S&L,_ I&N&T,E RfNaAlLs_eA,T
T      R| I  ^B
UT/usr/local/clang/include/absl/container/internal/btree_container.hE:_509C:A52P:T Unote: Rexpanded from macro 'ABSL_INTERNAL_X'E
D_B  Y509( | t h i s ) ) )        A B S L _ I N T E R N A L _ A T T R I B U\T
E      _| C                                                   ^A
PT/usr/local/clang/include/absl/container/internal/common.hU:R32E:D9_:B Ynote: (macro 'ABSL_INTERNAL_IF_false' defined heret
his   )32) | ,# d e f i n e   A B S L _ I N T E R N A L _ I F _\f
a      l| s                                                   ^e
(i/usr/local/clang/include/absl/container/internal/common.hf:_32s:a9t:i snote: fmacro 'ABSL_INTERNAL_IF_false' defined herei
ed   ,32  | .#.d.e)f i_n_eV AA_BASRLG_SI_N_T
E      R| N        ^A
L_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assIn file included from is2/s2lax_loop_shape.ccg:n18,:
 In file included from i../src/s2/s2lax_loop_shape.hn:ser41t:
_In file included from o../src/s2/s2loop.hr:_34a:
sIn file included from s../src/s2/mutable_s2shape_index.hi:g30n:
_In file included from i/usr/local/clang/include/absl/container/btree_map.hm:p67l:
,/usr/local/clang/include/absl/container/internal/btree_container.h :c564o:n3s:t  warning: &passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
 &&,   564f | a l sAeB,S
L      _| I  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
TE  R534N | A L _ X ( i n s e r t _ o r _ a s s itgrnu,e )i;n
s      e| r                  ~~~~~t
_or/usr/local/clang/include/absl/container/internal/btree_container.h_:a511s:s47i:g nnote: _expanded from macro 'ABSL_INTERNAL_X'h
int_  i511m | p l ,   c o n s t   &A,B
S      L| _  ^I
NT/usr/local/clang/include/absl/container/internal/btree_container.hE:R509N:A52L:_ Anote: Texpanded from macro 'ABSL_INTERNAL_X'T
RIB  U509T | E _ C A P T U R E D _ABBYS(Lt_hIiNsT)E)R)N A L _ A T T R I B U T E _ C A P T U R E D _ B Y\(
t      h| i                                              ^~~~s
)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2lax_loop_shape.cc::53618::
24In file included from :../src/s2/s2lax_loop_shape.h :warning: 41passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2loop.h:  34536:
 | In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 564 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
alse);  
564       | |                         ^ 
AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L496_:I9N:T Enote: Rmacro 'ABSL_INTERNAL_X' defined hereN
AL_  X496( | i#ndseefritn_eo rA_BaSsLs_iIgNnT,E RiNnAsLe_rXt(_Fourn_ca,s sCiaglnl_ehei,n tK_Qiumapll,,  McQounaslt,  &K,V
a      l| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
,   M565V | a l u e ,   . . . )           \ 
        | c        ^o
nst &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_AT/usr/local/clang/include/absl/container/internal/btree_container.hT:R535I:B3U:T Ewarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]C
APTU  R535E | D _ BAYB(StLh_iIsN)T)E,R N A L _ X ( i n s e r t _ o r _ a s s i g n ,  \i
n      s| e                                              ^~~~r
t_or_assign_im/usr/local/clang/include/absl/container/internal/btree_container.hp:l564,: 3c:o nwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
 &/usr/local/clang/include/absl/container/internal/btree_container.h,: 511&:&52,:  tnote: rexpanded from macro 'ABSL_INTERNAL_X'u
e,
        | 511  ^ | 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X'A
BSL  _509I | N T E R N A L _ A T TARBISBLU_TIEN_TCEARPNTAULR_EADT_TBRYI(BtUhTiEs_)C)A)P T U R E D _ B Y ( t h i s ) ) ,                \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
\
         | 31                                                   ^ | 
#d/usr/local/clang/include/absl/container/internal/common.he:f31i:n9e:  Anote: Bmacro 'ABSL_INTERNAL_IF_true' defined hereS
L_I   N31T | E#RdNeAfLi_nIeF _AtBrSuLe_(IiNfT_EsRaNtAiLs_fIiFe_dt,r u.e.(.i)f _isfa_tsiastfiisefdi,e d.
.      .| )        ^ 
if_satisfied
      | In file included from         ^s2/s2lax_loop_shape.cc
:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3In file included from :s2/s2furthest_edge_query.cc :warning: 16'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from   ../src/s2/s2closest_edge_query_base.h564: | 32 :
 In file included from A/usr/local/clang/include/absl/container/btree_set.hB:S66L:
_/usr/local/clang/include/absl/container/internal/btree_container.hI:N535T:E3R:N Awarning: L'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
X(inse  r535t | _ o rA_BaSsLs_iIgNnT,E RiNnAsLe_rXt(_ionrs_earsts_iogrn__ahsisnitg_ni,m piln,s ecrotn_sotr _&a,s
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
s  i565g | n _ i m p l ,   c o n s t   & ,   & &c,o ntsrtu e&,,
       t| r  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
e,   536t | r u e , 
        |                    ~~~~~~~~~~~~~~~~~~~~ 
      566  |           f a l s e ) ; 
        |                    ~~~~~~ 
  c/usr/local/clang/include/absl/container/internal/btree_container.ho:n509s:t47_:i tnote: eexpanded from macro 'ABSL_INTERNAL_X'r
ato  r509( | h i n t )   A B S L _AIBNSTLE_RINNATLE_RCNOAMLM_AA)T;T
R      I| B                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~U
TE_/usr/local/clang/include/absl/container/internal/btree_container.hC:A511P:T47U:R Enote: Dexpanded from macro 'ABSL_INTERNAL_X'_
BY(  t511h | i s ) ) ,            A B S L _ I N T E R N A L _ A T T R I\B
U      T| E                                              ^~~~_
CAPTURED/usr/local/clang/include/absl/container/internal/btree_container.h_:B535Y:(3t:h iwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
)/usr/local/clang/include/absl/container/internal/btree_container.h): 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A\B
S      L| _                                              ^~~~I
NTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, /usr/local/clang/include/absl/container/internal/btree_container.hc:o537n:s3t:  &warning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
&&,
        537|  |   ^ 
 A/usr/local/clang/include/absl/container/internal/btree_container.hB:S509L:_52I:N Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'R
NAL  _509X | ( i n s e r t _ o r _AaBsSsLi_gInN,T EiRnNsAeLr_tA_ToTrR_IaBsUsTiEg_nC_AiPmTpUlR,E Dc_oBnYs(tt h&i,s )&)&,,   t r u e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
  \  
509       | |                                                     ^ 
   /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :A Bnote: Smacro 'ABSL_INTERNAL_IF_false' defined hereL
_IN   T32E | R#NdAeLf_iAnTeT RAIBBSULT_EI_NCTAEPRTNUARLE_DI_FB_Yf(atlhsies()i)f,_ s a t i s f i e d ,   . . . )   _ _ V A _ A R G\S
_      _| 
                                                   ^      
|         ^/usr/local/clang/include/absl/container/internal/common.h
:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #defiIn file included from ns2/s2lax_loop_shape.cce: 18A:
BIn file included from S../src/s2/s2lax_loop_shape.hL:_41I:
NIn file included from T../src/s2/s2loop.hE:R34N:
AIn file included from L../src/s2/mutable_s2shape_index.h_:I30F:
_In file included from t/usr/local/clang/include/absl/container/btree_map.hr:u67e:
(/usr/local/clang/include/absl/container/internal/btree_container.hi:f568_:s3a:t iwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f
ied,   568. | . . )A BiSfL__sIaNtTiEsRfNiAeLd_
X      (| i        ^n
sert_or_assign, insert_oIn file included from rs2/s2furthest_edge_query.cc_:a16s:
sIn file included from i../src/s2/s2furthest_edge_query.hg:n33_:
hIn file included from i../src/s2/s2closest_edge_query_base.hn:t32_:
iIn file included from m/usr/local/clang/include/absl/container/btree_set.hp:l66,:
 /usr/local/clang/include/absl/container/internal/btree_container.hc:o537n:s3t:  &warning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
&&,
      |     ^537
 |  /usr/local/clang/include/absl/container/internal/btree_container.h :A511B:S52L:_ Inote: Nexpanded from macro 'ABSL_INTERNAL_X'T
ERN  A511L | _ X ( i n s e r t _ oArB_SaLs_sIiNgTnE,R NiAnLs_eArTtT_RoIrB_UaTsEs_iCgAnP_TiUmRpElD,_ BcYo(ntshti s&),) )& & ,   t r u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     538  |               \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9t:r unote: emacro 'ABSL_INTERNAL_IF_false' defined here)
;
         | 32                  ~~~~~ | 
#de/usr/local/clang/include/absl/container/internal/btree_container.hf:i509n:e47 :A Bnote: Sexpanded from macro 'ABSL_INTERNAL_X'L
_IN  T509E | R N A L _ I F _ f a lAsBeS(Li_fI_NsTaEtRiNsAfLi_eAdT,T R.I.B.U)T E___CVAAP_TAURRGESD___B
Y      (| t        ^h
is)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, constIn file included from  s2/s2lax_loop_shape.cc&:,18 :
&In file included from &../src/s2/s2lax_loop_shape.h,: 41t:
rIn file included from u../src/s2/s2loop.he:,34
:
      In file included from | ../src/s2/mutable_s2shape_index.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
30:
  In file included from 538/usr/local/clang/include/absl/container/btree_map.h | : 67 :
  /usr/local/clang/include/absl/container/internal/btree_container.h : 570 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       570t | r u eA)B;S
L      _| I                  ~~~~~N
TER/usr/local/clang/include/absl/container/internal/btree_container.hN:A511L:_47X:( inote: nexpanded from macro 'ABSL_INTERNAL_X's
ert  _511o | r _ a s s i g n ,   iAnBsSeLr_tI_NoTrE_RaNsAsLi_gAnT_ThRiInBtU_TiEm_pClA,P TcUoRnEsDt_ B&Y,( t&h&i,s
)      )| )  ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |               \ 
        | A                                              ^~~~B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ../usr/local/clang/include/absl/container/internal/btree_container.h.:)541 :_24_:V Awarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
RG  S541_ | _ 
        |          ^ 
             faIn file included from ls2/s2lax_loop_shape.ccs:e18):
;In file included from 
../src/s2/s2lax_loop_shape.h      :| 41                       ^:

In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/container/internal/btree_container.h::34496:
:In file included from 9../src/s2/mutable_s2shape_index.h:: 30note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
  /usr/local/clang/include/absl/container/internal/btree_container.h496: | 570#:d3e:f iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
 AB  S570L | _ I NATBESRLN_AILN_TXE(RFNuAnLc_,X (Cianlsleeret,_ oKrQ_uaasls,i gMnQ,u ailn,s eKrVta_loure_,a sMsViaglnu_eh,i n.t._.i)m p l ,   c\o
n      s| t        ^ 
&, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_tr/usr/local/clang/include/absl/container/internal/btree_container.hu:e540(:i3f:_ swarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
isfi  e540d | ,   .A.B.S)L _iIfN_TsEaRtNiAsLf_iXe(di
n      s| e        ^r
t_or_assign, insert_or_assign_imIn file included from ps2/s2lax_loop_shape.ccl:,18 :
&In file included from &../src/s2/s2lax_loop_shape.h,: 41c:
oIn file included from n../src/s2/s2loop.hs:t34 :
&In file included from ,../src/s2/mutable_s2shape_index.h :f30a:
lIn file included from s/usr/local/clang/include/absl/container/btree_map.he:,67
:
      /usr/local/clang/include/absl/container/internal/btree_container.h| :  ^570
:3:/usr/local/clang/include/absl/container/internal/btree_container.h :warning: 509'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
52: note: expanded from macro 'ABSL_INTERNAL_X'
  570 |     509A | B S L _ I N T E R N AALB_SXL(_iInNsTeErRtN_AoLr__AaTsTsRiIgBnU,T Ei_nCsAePrTtU_RoErD__aBsYs(itghni_sh)i)n,t _ i m p l ,   c o n s t   & ,   & & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
\
      |                                                      ^571
 |   /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # dfeaflisnee,  AtBrSuLe_,I NcToEnRsNtA_Li_tIeFr_aftaolrs(eh(iinft_)s aAtBiSsLf_iIeNdT,E R.N.A.L)_ C_O_MVMAA_)A;R
G      S| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_

      | /usr/local/clang/include/absl/container/internal/btree_container.h        ^:
511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  In file included from 511s2/s2furthest_edge_query.cc | : 16 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 33 :
 In file included from  ../src/s2/s2closest_edge_query_base.h :A32B:
SIn file included from L/usr/local/clang/include/absl/container/btree_set.h_:I66N:
T/usr/local/clang/include/absl/container/internal/btree_container.hE:R540N:A3L:_ Awarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
RIBU  T540E | _ C AAPBTSULR_EIDN_TBEYR(NtAhLi_sX)()i)n s e r t _ o r _ a s s i g n ,   i n s e r t _ o\r
_      a| s                                              ^~~~s
ign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, .../usr/local/clang/include/absl/container/internal/btree_container.h): 572 : 3 :  \warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|         ^
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_C/usr/local/clang/include/absl/container/internal/btree_container.hA:P542T:U3R:E Dwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]B
Y(th  i542s | ) ) ,A B S L _ I N T E R N A L _ X ( i n s e r t _ o r\_
a      s| s                                                   ^i
gn/usr/local/clang/include/absl/container/internal/common.h,: 31i:n9s:e rnote: tmacro 'ABSL_INTERNAL_IF_true' defined here_
or_   a31s | s#idgenf_iinmep lA,B S&L&_,I NcToEnRsNtA L&_,I Ff_atlrsuee,(
i      f| _  ^s
at/usr/local/clang/include/absl/container/internal/btree_container.hi:s509f:i52e:d ,note:  expanded from macro 'ABSL_INTERNAL_X'.
..)   509i | f _ s a t i s f i e dA
B      S| L        ^_
INTERNAL_ATTRIBUTEIn file included from _s2/s2lax_loop_shape.ccC:A18P:
TIn file included from U../src/s2/s2lax_loop_shape.hR:E41D:
_In file included from B../src/s2/s2loop.hY:(34t:
hIn file included from i../src/s2/mutable_s2shape_index.hs:)30):
,In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 572 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
         572  |     \A
B      S| L                                                   ^_
IN/usr/local/clang/include/absl/container/internal/common.hT:E32R:N9A:L _note: Xmacro 'ABSL_INTERNAL_IF_false' defined here(
in   s32e | r#td_eofri_naes sAiBgSnL,_ IiNnTsEeRrNtA_Lo_rI_Fa_sfsailgsne_(hiifn_ts_aitmipslf,i ecdo,n s.t. .&),  _&_&V,A
_      A| R  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~G
S__  
573       | |          ^ 
         In file included from  s2/s2furthest_edge_query.cc : 16 :
 In file included from  ../src/s2/s2furthest_edge_query.h :t33r:
uIn file included from e../src/s2/s2closest_edge_query_base.h,: 32f:
aIn file included from l/usr/local/clang/include/absl/container/btree_set.hs:e66,:
 /usr/local/clang/include/absl/container/internal/btree_container.hc:o542n:s3t:_ iwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
rato  r542( | h i nAtB)S LA_BISNLT_EIRNNTAELR_NXA(Li_nCsOeMrMtA_)o;r
_      a| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
ign/usr/local/clang/include/absl/container/internal/btree_container.h,:509 :i47n:s enote: rexpanded from macro 'ABSL_INTERNAL_X't
_or_  a509s | s i g n _ i m p l ,  A&B&S,L _cIoNnTsEtR N&A,L _fAaTlTsReI,B
U      T| E  ^_
CA/usr/local/clang/include/absl/container/internal/btree_container.hP:T511U:R52E:D _note: Bexpanded from macro 'ABSL_INTERNAL_X'Y
(th  i511s | ) ) ,            A B S L _ I N T E R N A L _ A T T R I B U\T
E      _| C                                              ^~~~A
PTURED_BY(this)))  /usr/local/clang/include/absl/container/internal/btree_container.h : 572 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
  \  
511       | |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :  Anote: Bmacro 'ABSL_INTERNAL_IF_true' defined hereS
L_I   N31T | E#RdNeAfLi_nAeT TARBISBLU_TIEN_TCEARPNTAULR_EIDF__BtYr(uteh(iisf)_)s)a t i s f i e d ,   . . . )   i f _ s a t i s f i\e
d      
|                                                          ^| 
        ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #defineIn file included from  s2/s2furthest_edge_query.ccA:B16S:
LIn file included from _../src/s2/s2furthest_edge_query.hI:N33T:
EIn file included from R../src/s2/s2closest_edge_query_base.hN:A32L:
_In file included from I/usr/local/clang/include/absl/container/btree_set.hF:_66f:
a/usr/local/clang/include/absl/container/internal/btree_container.hl:s542e:(3i:f _warning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
tisfie  d542, |   . .A.B)S L___IVNAT_EARRNGASL___X
(      i| n        ^s
ert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERIn file included from Ns2/s2lax_loop_shape.ccA:L18_:
XIn file included from (../src/s2/s2lax_loop_shape.hF:u41n:
cIn file included from ,../src/s2/s2loop.h :C34a:
lIn file included from l../src/s2/mutable_s2shape_index.he:e30,:
 In file included from K/usr/local/clang/include/absl/container/btree_map.hQ:u67a:
l/usr/local/clang/include/absl/container/internal/btree_container.h,: 574M:Q3u:a lwarning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
KVal  u574e | ,   MAVBaSlLu_eI,N T.E.R.N)A L _ X ( i\n
s      e| r        ^t
_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)/usr/local/clang/include/absl/container/internal/btree_container.h):,544 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       544  |      A B S L _ I N T E\R
N      A| L                                                   ^_
X(/usr/local/clang/include/absl/container/internal/common.hi:n31s:e9r:t _note: omacro 'ABSL_INTERNAL_IF_true' defined herer
_as   s31i | g#nd,e fiinnsee rAtB_SoLr__IaNsTsEiRgNnA_Li_mIpFl_,t r&u&e,( icfo_nssatt i&In file included from s,s2/s2latlng_rect.ccf :it18er:
duIn file included from ,e../src/s2/s2latlng_rect.h ,:.
30.      :
.| In file included from )  ^../src/s2/s1angle.h 
:i28/usr/local/clang/include/absl/container/internal/btree_container.hf:
_:In file included from s509../src/s2/s2point.ha::t5227i::
s In file included from fnote: ../src/s2/s2coder.hiexpanded from macro 'ABSL_INTERNAL_X':e
23d:

In file included from         /usr/local/clang/include/absl/status/status.h509| :        ^ | 67
 :
  /usr/local/clang/include/absl/status/internal/status_internal.h : 149 : 13 :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_I  N149 | conIn file included from Tss2/s2lax_loop_shape.cctE: R18cN:
hAIn file included from aL../src/s2/s2lax_loop_shape.hr_:*A41 TaT:
bRIn file included from sI../src/s2/s2loop.hlB:_U34nT:
oEIn file included from n_../src/s2/mutable_s2shape_index.hnC:uA30lP:
lTIn file included from  U/usr/local/clang/include/absl/container/btree_map.hMR:aE67Dk:
_e/usr/local/clang/include/absl/container/internal/btree_container.hCB:hY574e(:ct3kh:Fi aswarning: i)'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l)
S,t r i   n 574g  | (  
        A |  B            ^S 
L _ I N T E R N A L _ X ( i n\s
e      r| t                                                   ^_
or_/usr/local/clang/include/absl/container/internal/common.ha:/usr/local/clang/include/absl/base/nullability.hs31:s:241i9:g:22n :,note:   macro 'ABSL_INTERNAL_IF_true' defined herenote: iexpanded from macro 'absl_nonnull'
n
s   e31r | t  _#241od | r#e_dfaesfisiinnegen  _aAhbBisnSltL___niIomnNpnlTu,lE lcR oN_nNAsotLn n_&Iu,lF l&_
&t      ,r| 
                     ^u      
e| (  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
f_s  a575t | i s f i e d ,In file included from   s2/s2latlng_rect.cc .: .18 .:
 )In file included from   ../src/s2/s2latlng_rect.h i: f30 _ :
s In file included from  a../src/s2/s1angle.htt:ir28suf:
eiIn file included from ,e../src/s2/s2point.h d:t
27r      :
u| In file included from e        ^../src/s2/s2coder.h,
 :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht:_67i:
t/usr/local/clang/include/absl/status/internal/status_internal.he:r150a:t25o:r (warning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nIn file included from ts2/s2furthest_edge_query.cc  ):150 16 | A :
B S In file included from L _../src/s2/s2furthest_edge_query.hcI:oN33nT:
sEIn file included from tR../src/s2/s2closest_edge_query_base.h Na:Ab32Ls:
_lCIn file included from :O/usr/local/clang/include/absl/container/btree_set.h:MS:MtA66a)t:
;u
/usr/local/clang/include/absl/container/internal/btree_container.hs      *:|  544                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a:
b3s:l/usr/local/clang/include/absl/container/internal/btree_container.h_ :nwarning: 509o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n:
n47u:l lnote:  expanded from macro 'ABSL_INTERNAL_X'  s
544t | a   t 509uA | Bs S, L _  cIo Nn Ts Et R  cN hAAaBrLS*L_ _aXIbN(siTnlsE_RenrNoAtnLn__uAolTrlT_ RapIsrBseUfiTgiEnx_,)C; A
iP      nT| U                        ^sR
EeD/usr/local/clang/include/absl/base/nullability.hr_:Bt241Y_:(o22rt:h_ ianote: sexpanded from macro 'absl_nonnull's)
)s  ,i241 g |  #n d _e f ii mnp le ,  a  b &s &l ,_  n oc no nn u sl lt    _ &N\o,
n       tn| ur                                              ^~~~lu
le
,      
|                            ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 574 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 In file included from  /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2latlng_rect.cc :: 51118 ::
 52In file included from  :../src/s2/s2latlng_rect.h  :fnote: 30expanded from macro 'ABSL_INTERNAL_X'a:

lIn file included from s../src/s2/s1angle.h  e:511)28; | :
 
In file included from        ../src/s2/s2point.h | :                   ~~~~~~27 
:
 In file included from  ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree_container.h : :23 509:
A:In file included from B47/usr/local/clang/include/absl/status/status.hS::L 67_note: :
Iexpanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/status/internal/status_internal.hN
:T150E:R  58N509:A |  Lwarning:  _ type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A 
T T    R 150I  | B U  T  E _AcCoBASnPsLT_tU IRaNEbTDs_ElB:YR:(SNttAhaLits_u)sA)*T)  Ta bR sI BlU _ Tn oE n _n CuA l PTlU R s Et aD t_ uB s Y,  ( c o t h\n
is      ts|  )                                                   ^c)
h,a/usr/local/clang/include/absl/container/internal/common.hr :* 31  :a 9 b:s  l _note:  nmacro 'ABSL_INTERNAL_IF_true' defined hereo 
 n n   u 31 l | l # d perf ienf e i  xA) B;S
 L      _ |  I                                                         ^N 
T\E/usr/local/clang/include/absl/base/nullability.h
R:N      241A| :                                              ^~~~L22
_:I Fnote: _expanded from macro 'absl_nonnull't
ru  /usr/local/clang/include/absl/container/internal/btree_container.he241:( | i544#f:d_3esfa:itnies abs fli_endo,n n.u.l.l)  _iNfo_nsnautlils
f      i| e                     ^
d
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
/usr/local/clang/include/absl/container/internal/btree_container.h   :32577 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e AB  S577L | _ I NATBESRLN_AILN_TIEFR_NfAaLl_sXe((iinfs_esratt_iosrf_iaesds,i g.n.,. )i n_s_eVrAt__AoRrG_Sa_s_s
i      g| n        ^_
hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(ifIn file included from _s2/s2furthest_edge_query.ccs:a16t:
iIn file included from s../src/s2/s2furthest_edge_query.hf:i33e:
dIn file included from ,../src/s2/s2closest_edge_query_base.h :.32.:
.In file included from )/usr/local/clang/include/absl/container/btree_set.h :_66_:
V/usr/local/clang/include/absl/container/internal/btree_container.hA:_547A:R23G:S _warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      |         ^  
547 |                   In file included from ts2/s2lax_loop_shape.ccr:u18e:
)In file included from ;../src/s2/s2lax_loop_shape.h
:      41| :
                      ^In file included from 
../src/s2/s2loop.h:34/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 496../src/s2/mutable_s2shape_index.h::930::
 In file included from note: /usr/local/clang/include/absl/container/btree_map.hmacro 'ABSL_INTERNAL_X' defined here:
67:
/usr/local/clang/include/absl/container/internal/btree_container.h  :496577 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e AB  S577L | _ I NATBESRLN_AILN_TXE(RFNuAnLc_,X (Cianlsleeret,_ oKrQ_uaasls,i gMnQ,u ailn,s eKrVta_loure_,a sMsViaglnu_eh,i n.t._.i)m p l ,   &\&
,       | c        ^o
nst &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABS/usr/local/clang/include/absl/container/internal/btree_container.hL:_546I:N3T:E Rwarning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
L_IF  _546f | a l sAeB(SiLf__IsNaTtEiRsNfAiLe_dX,( i.n.s.e)r t___oVrA__aAsRsGiSg_n_,
       i| n        ^s
ert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTIn file included from Es2/s2lax_loop_shape.ccR:N18A:
LIn file included from _../src/s2/s2lax_loop_shape.hX:(41i:
nIn file included from s../src/s2/s2loop.he:r34t:
_In file included from o../src/s2/mutable_s2shape_index.hr:_30a:
sIn file included from s/usr/local/clang/include/absl/container/btree_map.hi:g67n:
, /usr/local/clang/include/absl/container/internal/btree_container.hi:n579s:e3r:t _warning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
_ass  i579g | n _ iAmBpSlL,_ I&N&T,E RcNoAnLs_tX (&i,n sterrute_,o
r      _| a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
si  g547n | ,   i n s e r t _ o r _ a s s i g n _thriunet)_;i
m      p| l                  ~~~~~,
 &&/usr/local/clang/include/absl/container/internal/btree_container.h,: 509c:o47n:s tnote:  expanded from macro 'ABSL_INTERNAL_X'&
,
      |     ^509
 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
ABS  L509_ | I N T E R N A L _ A TATBRSILB_UITNET_ECRANPATLU_RAETDT_RBIYB(UtThEi_sC)A)P,T U R E D _ B Y ( t h i s ) ) ,                  \ 
        |                                                ^~~~ 
        /usr/local/clang/include/absl/container/internal/btree_container.h : 546\:
3      :|                                                     ^warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/btree_container.h::32511::952::  note: note: macro 'ABSL_INTERNAL_IF_false' defined hereexpanded from macro 'ABSL_INTERNAL_X'

   32   | 511# | d e f i n e   A B S LA_BISNLT_EIRNNTAELR_NIAFL__fAaTlTsReI(BiUfT_Es_aCtAiPsTfUiReEdD,_ B.Y.(.t)h i_s_)V)A)_ A R G S _ _ 
        |          ^ 
             \In file included from 
s2/s2lax_loop_shape.cc      :| 18                                                   ^:

In file included from ../src/s2/s2lax_loop_shape.h:/usr/local/clang/include/absl/container/internal/common.h41::
31In file included from :../src/s2/s2loop.h9::34 :
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/mutable_s2shape_index.h
:30:
In file included from    /usr/local/clang/include/absl/container/btree_map.h31: | 67#:
d/usr/local/clang/include/absl/container/internal/btree_container.he:f579i:n3e:  Awarning: Bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]S
L_I  N579T | E R NAABLS_LI_FI_NtTrEuReN(AiLf__Xs(aitnissefrite_do,r _.a.s.s)i ginf,_ siantsiesrfti_eodr
_      a| s        ^s
ign_hint_impl, In file included from &s2/s2furthest_edge_query.cc&:,16 :
cIn file included from o../src/s2/s2furthest_edge_query.hn:s33t:
 In file included from &../src/s2/s2closest_edge_query_base.h,:
32      :
| In file included from   ^/usr/local/clang/include/absl/container/btree_set.h
:66:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.h::511546::523::  note: warning: expanded from macro 'ABSL_INTERNAL_X''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  511 |    546  |      A B S L _ IANBTSELR_NIANLT_EXR(NiAnLs_eArTtT_RoIrB_UaTsEs_iCgAnP,T UiRnEsDe_rBtY_(otrh_iass)s)i)g n _ i m p l ,   & & ,   c o n s t   & ,   t r u\e
,      
|                                                          ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/common.h:  31547: | 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e f i n e  tArBuSeL)_;I
N      T| E                  ~~~~~R
NAL/usr/local/clang/include/absl/container/internal/btree_container.h_:I511F:_47t:r unote: eexpanded from macro 'ABSL_INTERNAL_X'(
if_  s511a | t i s f i e d ,   . .A.B)S Li_fI_NsTaEtRiNsAfLi_eAdT
T      R| I        ^B
UTE_CAPTURED_BY(In file included from ts2/s2lax_loop_shape.cch:i18s:
)In file included from )../src/s2/s2lax_loop_shape.h): 41 :
 In file included from  ../src/s2/s2loop.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 579 : 3 :  \warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                                               ^~~~
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_ite/usr/local/clang/include/absl/container/internal/btree_container.hr:a550t:o24r:( hwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
t)   A550B | S L _ I N T E R N A L _ C O M M A ) ;f
a      l| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
);
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                       ^511
:47/usr/local/clang/include/absl/container/internal/btree_container.h:: 496:note: 9expanded from macro 'ABSL_INTERNAL_X':
 note: macro 'ABSL_INTERNAL_X' defined here  
511 |     496  |  # d e f i n eA BASBLS_LI_NITNETRENRANLA_LA_TXT(RFIuBnUcT,E _CCaAlPlTeUeR,E DK_QBuYa(lt,h iMsQ)u)a)l ,   K V a l u e ,   M V a l u e ,   . . . )    \ 
        | \                                              ^~~~

      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_A/usr/local/clang/include/absl/container/internal/btree_container.hR:G581S:_3_:
       warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]        ^

  581 |   ABSL_IIn file included from Ns2/s2furthest_edge_query.ccT:E16R:
NIn file included from A../src/s2/s2furthest_edge_query.hL:_33X:
(In file included from i../src/s2/s2closest_edge_query_base.hn:s32e:
rIn file included from t/usr/local/clang/include/absl/container/btree_set.h_:o66r:
_/usr/local/clang/include/absl/container/internal/btree_container.ha:s549s:i3g:n ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
nse  r549t | _ o rA_BaSsLs_iIgNnT_EhRiNnAtL__iXm(piln,s e&r&t,_ ocro_nassts i&g,n
,       | i  ^n
se/usr/local/clang/include/absl/container/internal/btree_container.hr:t509_:o52r:_ anote: sexpanded from macro 'ABSL_INTERNAL_X's
ign  _509i | m p l ,   & & ,   & &A,B SfLa_lIsNeT,E
R      N| A  ^L
_A/usr/local/clang/include/absl/container/internal/btree_container.hT:T511R:I52B:U Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'_
CAP  T511U | R E D _ B Y ( t h i sA)B)S,L _ I N T E R N A L _ A T T R I B U T E _ C A P T\U
R      E| D                                                   ^_
BY/usr/local/clang/include/absl/container/internal/common.h(:t31h:i9s:) )note: )macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e f i n e   A B S L _ I N T E R\N
A      L| _                                                   ^I
F_/usr/local/clang/include/absl/container/internal/common.ht:r32u:e9(:i fnote: _macro 'ABSL_INTERNAL_IF_false' defined heres
ati   s32f | i#edde,f i.n.e. )A BiSfL__sIaNtTiEsRfNiAeLd_
I      F| _        ^f
alse(if_satisfied, ...) __VA_ARGSIn file included from _s2/s2lax_loop_shape.cc_:
18      :
| In file included from         ^../src/s2/s2lax_loop_shape.h
:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_asIn file included from ss2/s2furthest_edge_query.cci:g16n:
,In file included from  ../src/s2/s2furthest_edge_query.hi:n33s:
eIn file included from r../src/s2/s2closest_edge_query_base.ht:_32o:
rIn file included from _/usr/local/clang/include/absl/container/btree_set.ha:s66s:
i/usr/local/clang/include/absl/container/internal/btree_container.hg:n551_:h79i:n twarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
mpl,   551& | & ,  AcBoSnLs_tI N&T,E
R      N| A  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
_X(  i582n | s e r t _ o r _ a s s i g n ,   i n sterrute_,o rf_aalsssei,g nc_oinmsptl_,i t&e&r,a t&o&r,( hfianlts)e ,A BtSrLu_eI)N;T
E      R| N                                                                              ^A
L_/usr/local/clang/include/absl/container/internal/btree_container.hC:O496M:M9A:) ;note: 
macro 'ABSL_INTERNAL_X' defined here      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  496 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d509e:f47i:n enote:  expanded from macro 'ABSL_INTERNAL_X'A
BSL  _509I | N T E R N A L _ X ( FAuBnScL,_ ICNaTlElReNeA,L _KAQTuTaRlI,B UMTQEu_aClA,P TKUVRaElDu_eB,Y (MtVhailsu)e),,  . . . )           \ 
        |          ^ 
         \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                      /usr/local/clang/include/absl/container/internal/btree_container.h : 551\:
3      :|                                                     ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/internal/common.h
:32:9:   551note:  | macro 'ABSL_INTERNAL_IF_false' defined here 
 AB   S32L | _#IdNeTfEiRnNeA LA_BXS(Li_nIsNeTrEtR_NoArL__aIsFs_ifganl,s ei(nisfe_rsta_toirs_faisesdi,g n._.i.m)p l_,_ V&A&_,A R&G&S,_ _f
a      l| s        ^e
, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2lax_loop_shape.cc::3118::
9In file included from :../src/s2/s2lax_loop_shape.h :note: 41macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from ../src/s2/s2loop.h:   3431:
 | In file included from #../src/s2/mutable_s2shape_index.hd:e30f:
iIn file included from n/usr/local/clang/include/absl/container/btree_map.he: 67A:
B/usr/local/clang/include/absl/container/internal/btree_container.hS:L583_:I3N:T Ewarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
AL_I  F583_ | t r uAeB(SiLf__IsNaTtEiRsNfAiLe_dX,( i.n.s.e)r ti_fo_rs_aatsissifgine,d 
i      n| s        ^e
rt_or_assign_hintIn file included from _s2/s2furthest_edge_query.cci:m16p:
lIn file included from ,../src/s2/s2furthest_edge_query.h :&33&:
,In file included from  ../src/s2/s2closest_edge_query_base.hc:o32n:
sIn file included from t/usr/local/clang/include/absl/container/btree_set.h :&66,:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 551  ^:
3: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]509
:52: note:   expanded from macro 'ABSL_INTERNAL_X'551
 |     A509B | S L _ I N T E R N A LA_BXS(Li_nIsNeTrEtR_NoArL__aAsTsTiRgInB,U TiEn_sCeArPtT_UoRrE_Da_sBsYi(gtnh_iism)p)l,,   & & ,   & & ,   f a l s e ,   t r u e ) ; 
       \| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                                                    ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511/usr/local/clang/include/absl/container/internal/common.h::4731:: 9note: :expanded from macro 'ABSL_INTERNAL_X' 
note: macro 'ABSL_INTERNAL_IF_true' defined here
  511 |     31  |  # d e f i n e  AABBSSLL__IINNTTEERRNNAALL__AITFT_RtIrBuUeT(Ei_fC_AsPaTtUiRsEfDi_eBdY,( t.h.i.s)) )i)f _ s a t i s f i e d 
        |          ^ 
         \
      |                                               ^~~~
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584/usr/local/clang/include/absl/container/internal/btree_container.h | : 552 : 79 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       552  |      A BtSrLu_eI,N TtErRuNeA,L _cXo(nisnts_eirtte_roart_oars(shiignnt,)  iAnBsSeLr_tI_NoTrE_RaNsAsLi_gCnO_MiMmAp)l;,
       &| &                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 &&/usr/local/clang/include/absl/container/internal/btree_container.h,: 509t:r47u:e ,note:  expanded from macro 'ABSL_INTERNAL_X'f
alse  )509; | 
        |                                                                                ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9A:B Snote: Lmacro 'ABSL_INTERNAL_X' defined here_
INT  E496R | N#AdLe_fAiTnTeR IABBUSTLE__ICNATPETRUNRAELD__XB(YF(utnhci,s )C)a,l l e e ,   K Q u a l ,   M Q u a l ,   K V a l u\e
,       | M                                              ^~~~V
alue, ../usr/local/clang/include/absl/container/internal/btree_container.h.:)583 : 3 :   warning: \passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      | /usr/local/clang/include/absl/container/internal/btree_container.h        ^:
511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNA/usr/local/clang/include/absl/container/internal/btree_container.hL:_552I:F3_:t rwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
(if_  s552a | t i sAfBiSeLd_,I N.T.E.R)N AiLf__Xs(aitnissefrite_do
r      _| a        ^s
sign, insert_or_assiIn file included from gs2/s2lax_loop_shape.ccn:_18i:
mIn file included from p../src/s2/s2lax_loop_shape.hl:,41 :
&In file included from &../src/s2/s2loop.h,: 34&:
&In file included from ,../src/s2/mutable_s2shape_index.h :t30r:
uIn file included from e/usr/local/clang/include/absl/container/btree_map.h,: 67f:
a/usr/local/clang/include/absl/container/internal/btree_container.hl:s583e:)3;:
       warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  ^

/usr/local/clang/include/absl/container/internal/btree_container.h:509  :58352 | :   note: Aexpanded from macro 'ABSL_INTERNAL_X'B
SL_  I509N | T E R N A L _ X ( i nAsBeSrLt__IoNrT_EaRsNsAiLg_nA,T TiRnIsBeUrTtE__oCrA_PaTsUsRiEgDn__BhYi(ntth_iism)p)l,,   & & ,   c o n s t   & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      584  |   \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
 tr   u31e | ,# dterfuien,e  cAoBnSsLt__IiNtTeErRaNtAoLr_(IhFi_nttr)u eA(BiSfL__sIaNtTiEsRfNiAeLd_,C O.M.M.A)) ;i
f      _| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
tis/usr/local/clang/include/absl/container/internal/btree_container.hf:i511e:d47
:       | note:         ^expanded from macro 'ABSL_INTERNAL_X'

  511 |           ABSL_In file included from Is2/s2furthest_edge_query.ccN:T16E:
RIn file included from N../src/s2/s2furthest_edge_query.hA:L33_:
AIn file included from T../src/s2/s2closest_edge_query_base.hT:R32I:
BIn file included from U/usr/local/clang/include/absl/container/btree_set.hT:E66_:
C/usr/local/clang/include/absl/container/internal/btree_container.hA:P552T:U3R:E Dwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]B
Y(thi  s552) | ) )  A B S L _ I N T E R N A L _ X ( i n s e r t _ o\r
_      a| s                                              ^~~~s
ign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
s2/s2furthest_edge_query.cc:16:
In file included from   ../src/s2/s2furthest_edge_query.h586: | 33 :
 In file included from A../src/s2/s2closest_edge_query_base.hB:S32L:
_In file included from I/usr/local/clang/include/absl/container/btree_set.hN:T66E:
R/usr/local/clang/include/absl/container/internal/btree_container.hN:A553L:_78X:( iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
ert_  o553r | _ a sAsBiSgLn_,I NiTnEsReNrAtL__oXr(_ianssseirgtn__ohri_nats_siimgpnl,,  i&n&s,e r&t&_,o rf_aalsssei,g
n      _| i  ^m
pl/usr/local/clang/include/absl/container/internal/btree_container.h,: 509&:&52,:  &note: &expanded from macro 'ABSL_INTERNAL_X',
 tr  u509e | ,   t r u e ) ; 
        | A                                                                             ^B
SL/usr/local/clang/include/absl/container/internal/btree_container.h_:I496N:T9E:R Nnote: Amacro 'ABSL_INTERNAL_X' defined hereL
_AT  T496R | I#BdUeTfEi_nCeA PATBUSRLE_DI_NBTYE(RtNhAiLs_)X)(,F u n c ,   C a l l e e ,   K Q u a l ,   M Q u a\l
,       | K                                                   ^V
al/usr/local/clang/include/absl/container/internal/common.hu:e32,: 9M:V anote: lmacro 'ABSL_INTERNAL_IF_false' defined hereu
e,    .32. | .#)d e f i n e\ 
A      B| S        ^L
_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from In file included from s2/s2latlng_rect.ccs2/s2lax_loop_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2latlng_rect.h../src/s2/s2lax_loop_shape.h::3041:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2loop.h::2834:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/mutable_s2shape_index.h::2730:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/btree_map.h::2367:
:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/status.h::586725::338::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  586 |    725  | A B SsLt_aIt/usr/local/clang/include/absl/container/internal/btree_container.hNiT:cE 553RsN:tA3aLt_:uXs (_iwarning: inpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nst
eerrtn  _ao553lr | : _ :aSAstsBaiStLgun_sI,R NeiTpnEsR*eN raAtb_Lsol_r__Xnaos(nsiniungslnle_ rhPitrne_tp_oairrmep_Tloa,Ms o&sd&ii,f yg&(&
n,      |                                      ^
,  fian/usr/local/clang/include/absl/base/nullability.hls:se241er:,t22
_:      o | rnote:   ^_expanded from macro 'absl_nonnull'
a
s/usr/local/clang/include/absl/container/internal/btree_container.hs  :i241511g | n:#_52di:em fpnote: ilexpanded from macro 'ABSL_INTERNAL_X'n,
e  &  a&511b, | s  l _& n &o ,n  nt u rl ul  eA_B,NS otLnr_nIuueN)l;TlE

R            N| | A                     ^  ^L
_
AT/usr/local/clang/include/absl/container/internal/btree_container.hT:R509I:B52U:T Enote: _expanded from macro 'ABSL_INTERNAL_X'C
APT  U509R | E D _ B Y ( t h i s )A)B)S L _ I N In file included from T s2/s2latlng_rect.cc E: R18 N:
 AIn file included from  L../src/s2/s2latlng_rect.h _: A30T :
 TIn file included from  R../src/s2/s1angle.h I: B28 U:
 TIn file included from  E../src/s2/s2point.h _: C27A :
\PIn file included from 
T../src/s2/s2coder.h      U:| R23E                                                   ^:
D
/usr/local/clang/include/absl/status/status.h_:/usr/local/clang/include/absl/container/internal/common.hB732Y:(:32t29:h:9i :swarning:  )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: )
macro 'ABSL_INTERNAL_IF_false' defined here,
    732     | 32   |  # sd te af tii nce   c AoB nSs Lt_   IsN tTdE :R: NsA tL r_i InF g_* f a alb\sse
l(_      inf| o_                                                   ^ns
naut/usr/local/clang/include/absl/container/internal/common.hlil:s f31Eim:epd9t,y: S. t.rnote: .i)macro 'ABSL_INTERNAL_IF_true' defined heren g
_(_)V   ;A
31_      A | | #R                            ^Gd
Se_f/usr/local/clang/include/absl/base/nullability.h_i:
n241      e:|  22A        ^:B
 Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iInFe_ tarbusel(_info_nsnautlils f_iNeodn,n u.l.l.
)       | i                     ^f
_satisfied
      |         ^
In file included from s2/s2latlng_rect.ccIn file included from :s2/s2furthest_edge_query.cc18::
16In file included from :
../src/s2/s2latlng_rect.hIn file included from :../src/s2/s2furthest_edge_query.h30::
33In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2closest_edge_query_base.h28::
32In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h27::
66In file included from :
../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree_container.h::23553:
:/usr/local/clang/include/absl/status/status.h3::733 :warning: 29'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  553 |    733  | A B SsLt_aItNiTcE RcNoAnLs_tX (sitnds:e:rstt_roirn_ga*s saibgsnl,_ nionnsneurltl_ oMro_vaesdsFirgonm_SiIn file included from tms2/s2lax_loop_shape.ccrp:il18,n :
&g&In file included from ,( ../src/s2/s2lax_loop_shape.h&)&:;,41
 :
t      rIn file included from u| e../src/s2/s2loop.h,                            ^ :t
r34u/usr/local/clang/include/absl/base/nullability.he:
):In file included from ;241
../src/s2/mutable_s2shape_index.h:      :30| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/container/internal/btree_container.h509::58847::3 :note:  expanded from macro 'ABSL_INTERNAL_X'
warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]509
 |       588  |      A B SALB_SILN_TIENRTNEARLN_AXL(_iAnTsTeRrItB_UoTrE__aCsAsPiTgUnR,E Di_nBsYe(rtth_iosr)_)a,s s i g n _ h i n t _ i m p l ,   & & ,   & & ,  \f
a      l| s                                              ^~~~e
,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.h::509553::523::  note: warning: expanded from macro 'ABSL_INTERNAL_X'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/container/internal/btree_container.h:  511509: | 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  | A B S L _ I N T E R NAABLS_LA_TITNRTIEBRUNTAEL__CAATPTTRUIRBEUDT_EB_YC(AtPhTiUsR)E)D,_ B Y ( t h i s ) ) )                            \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 :\9
:       | note:                                                    ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/container/internal/common.h:   3132: | 9#:d enote: fmacro 'ABSL_INTERNAL_IF_true' defined herei
ne    A31B | S#Ld_eIfNiTnEeR NAABLS_LI_FI_NfTaElRsNeA(Li_fI_Fs_attriusef(iiefd_,s a.t.i.s)f i_e_dV,A _.A.R.G)S _i_f
_      s| a        ^t
isfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34In file included from :
s2/s2furthest_edge_query.ccIn file included from :../src/s2/mutable_s2shape_index.h16::
30In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h33::
67In file included from :
../src/s2/s2closest_edge_query_base.h/usr/local/clang/include/absl/container/internal/btree_container.h::32588:
:In file included from 3/usr/local/clang/include/absl/container/btree_set.h:: 66warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/internal/btree_container.h
:553:3:   588warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
 ABSL  _553I | N T EARBNSALL__IXN(TiEnRsNeArLt__Xo(ri_nassesritg_no,r _ianssseirgtn_,o ri_nassesritg_no_rh_iansts_iigmnp_li,m p&l&,,  &&&&,,  &f&a,l ster,u
e      ,|    ^t
ru/usr/local/clang/include/absl/container/internal/btree_container.he:)511;:
52      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~note: 
expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/container/internal/btree_container.h:511  :51147 | :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |   A B S L _ I N T E RANBASLL__AITNTTREIRBNUATLE__ACTATPRTIUBRUETDE__BCYA(PtThUiRsE)D)_)B Y ( t h i s ) ) )                              \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31\:
9      :|                                                ^~~~
note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_/usr/local/clang/include/absl/container/internal/btree_container.hC:O555M:M3A:) ;warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  555/usr/local/clang/include/absl/container/internal/btree_container.h | : 511 :A47B:S Lnote: _expanded from macro 'ABSL_INTERNAL_X'I
NTE  R511N | A L _ X ( i n s e r tA_BoSrL__aIsNsTiEgRnN,A Li_nAsTeTrRtI_BoUrT_Ea_sCsAiPgTnU_RhEiDn_tB_Yi(mtphli,s )c)o)n s t   & , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
     \509
 |        |                                                ^~~~ 
       ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABS/usr/local/clang/include/absl/container/internal/btree_container.hL:_590I:N3T:E Rwarning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
AL22_  :I590 F | _note:  fexpanded from macro 'absl_nonnull' a
AlBsS  eL241(_ | iI#NfdT_eEsfRaitNniAesL f_aiXbe(sidl,n_ s.ne.or.nt)n_u ol_rl__ Va_AsNs_oinAgnnRu,Gl Sli
n_      s_| e
                     ^r      
t| _        ^o
r_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                   In file included from  s2/s2latlng_rect.cc : 18 :
 In file included from \../src/s2/s2latlng_rect.h
:      30| :
                                                   ^In file included from 
../src/s2/s1angle.h:28:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2point.h31::279:
:In file included from  ../src/s2/s2coder.h:note: 23macro 'ABSL_INTERNAL_IF_true' defined here:

/usr/local/clang/include/absl/status/status.h:751   :3161 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   A751B | S L _sItNaTtEiRcN AuLIn file included from i_ns2/s2furthest_edge_query.ccIt:Fp16_t:
trrIn file included from _u../src/s2/s2furthest_edge_query.hte :(Pi33ofi_:
nsIn file included from tae../src/s2/s2closest_edge_query_base.htr:iTs32of:
RiIn file included from eep/usr/local/clang/include/absl/container/btree_set.hd(,:s t66.a:
.t./usr/local/clang/include/absl/container/internal/btree_container.hu)s: _i558if:n_t3sea:rtn iawarning: slpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f:i
:eSdt
  a      t558| u |         ^ s 
RAeBpS*L _aIbNsTlE_RnNoAnLn_uXlIn file included from (ls2/s2lax_loop_shape.cci :nrs18)e:
r;In file included from 
t../src/s2/s2lax_loop_shape.h      _:| o41                                                            ^r:

_In file included from a../src/s2/s2loop.hs/usr/local/clang/include/absl/base/nullability.h:s:34i241:
g:In file included from n22../src/s2/mutable_s2shape_index.h,::  30inote: :
expanded from macro 'absl_nonnull'nIn file included from 
s/usr/local/clang/include/absl/container/btree_map.he  :r24167t | :
#/usr/local/clang/include/absl/container/internal/btree_container.h_d:oer590_f:ia3ns:es  iwarning: ag'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]nb
s_lh_i  nn590ot | _ni n muAlpBlSl L_,_NI oNncTonEnuRslNtlA
L       _&| X,                     ^(

i      n| s  ^e
rt/usr/local/clang/include/absl/container/internal/btree_container.h_:o509r:_52a:s snote: iexpanded from macro 'ABSL_INTERNAL_X'g
n,   In file included from i509s2/s2latlng_rect.ccn | :s 18e :
r In file included from t ../src/s2/s2latlng_rect.h_ :o 30r :
 _In file included from a ../src/s2/s1angle.hs :sA28iB:
gSIn file included from nL../src/s2/s2point.h__:IhN27iT:
nEIn file included from tR../src/s2/s2coder.h_N:iA23mL:
p_/usr/local/clang/include/absl/status/status.hlA:,T752 T:&R44&I:,B  Uwarning: &Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&E
,_ Ct  Ar752uP | e T, U
Rs      Et| Da  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_t
iBcY   (ct591oh | ins s) t )  s, t  a   t u  s   _  i   n  t  e  r  n  a l f:a :lSs tea, t  ucs oRn espt *_  ia tbe\sr
la_      tno| o                                                   ^rn
(nh/usr/local/clang/include/absl/container/internal/common.huil:nl32t ):R e9ApB:TSo LP_note: omacro 'ABSL_INTERNAL_IF_false' defined hereIiN
nTtE   eR32rN( | A
#Ld      _e| C                                           ^fO
MiM/usr/local/clang/include/absl/base/nullability.hAn:)e241; :A
22B      :S|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
note: _expanded from macro 'absl_nonnull'I
/usr/local/clang/include/absl/container/internal/btree_container.hN:T  509E241:R | 47#N:dA enote: Lf_expanded from macro 'ABSL_INTERNAL_X'iI
nFe_ f  aa509bl | s sl e (_ ni fo n_ ns au tl liA Bs_SNfLo_nIinNeuTdlEl,R
N       A.| L.                     ^_.
A)T T_R_IVBAU_TAER_GCSA_P_T
U      R| E        ^D
_BY(this)In file included from )s2/s2furthest_edge_query.cc,: 16 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 33 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 558 : 3 :  \warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|                                               ^~~~
  558 |   ABSL_/usr/local/clang/include/absl/container/internal/btree_container.hI:N590T:E3R:N Awarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
X(/usr/local/clang/include/absl/container/internal/btree_container.hi:n511s:e52r:t _note: oexpanded from macro 'ABSL_INTERNAL_X'r
_as  s511i | g n ,   i n s e r t _AoBrS_La_sIsNiTgEnR_NhAiLn_tA_TiTmRpIlB,U TcEo_nCsAtP T&U,R
E      D| _  ^B
Y(/usr/local/clang/include/absl/container/internal/btree_container.ht:h511i:s52):) )note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _ I N\T
E      R| N                                                   ^A
L_/usr/local/clang/include/absl/container/internal/common.hA:T32T:R9I:B Unote: Tmacro 'ABSL_INTERNAL_IF_false' defined hereE
_CA   P32T | U#RdEeDf_iBnYe( tAhBiSsL)_)I)N T E R N A L _ I F _ f a l s e ( i f _ s a t i s\f
i      e| d                                                   ^,
 ./usr/local/clang/include/absl/container/internal/common.h.:.31): 9_:_ Vnote: Amacro 'ABSL_INTERNAL_IF_true' defined here_
ARG   S31_ | _#
d      e| f        ^i
ne ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2/s2lax_loop_shape.cc):)18 :
 In file included from  ../src/s2/s2lax_loop_shape.h : 41 :
 In file included from  ../src/s2/s2loop.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
  /usr/local/clang/include/absl/container/internal/btree_container.h :\592
:      3| :                                              ^~~~ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, .../usr/local/clang/include/absl/container/internal/btree_container.h): 561i:f3_:s awarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
sfi  e561d | 
        | A        ^B
SL_INTERNAL_X(inseIn file included from rs2/s2lax_loop_shape.cct:_18o:
rIn file included from _../src/s2/s2lax_loop_shape.ha:s41s:
iIn file included from g../src/s2/s2loop.hn:,34 :
iIn file included from n../src/s2/mutable_s2shape_index.hs:e30r:
tIn file included from _/usr/local/clang/include/absl/container/btree_map.ho:r67_:
a/usr/local/clang/include/absl/container/internal/btree_container.hs:s592i:g3n:_ hwarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
t_imp  l592, |   c oAnBsStL _&I,N
T      E| R  ^N
AL/usr/local/clang/include/absl/container/internal/btree_container.h_:X509(:i52n:s enote: rexpanded from macro 'ABSL_INTERNAL_X't
_or  _509a | s s i g n ,   i n s eArBtS_Lo_rI_NaTsEsRiNgAnL__hAiTnTtR_IiBmUpTlE,_ C&A&P,T U&R&E,D _tBrYu(et,h
i      s| )  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
,     593  |                                      t r\u
e      ,|                                                     ^c
on/usr/local/clang/include/absl/container/internal/common.hs:t31_:i9t:e rnote: amacro 'ABSL_INTERNAL_IF_true' defined heret
or(   h31i | n#td)e fAiBnSeL _AIBNSTLE_RINNATLE_RCNOAMLM_AI)F;_
t      r| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
(if/usr/local/clang/include/absl/container/internal/btree_container.h_:s509a:t47i:s fnote: iexpanded from macro 'ABSL_INTERNAL_X'e
d,   .509. | . )   i f _ s a t i sAfBiSeLd_
I      N| T        ^E
RNAL_ATTRIBUTEIn file included from _s2/s2furthest_edge_query.ccC:A16P:
TIn file included from U../src/s2/s2furthest_edge_query.hR:E33D:
_In file included from B../src/s2/s2closest_edge_query_base.hY:(32t:
hIn file included from i/usr/local/clang/include/absl/container/btree_set.hs:)66):
,/usr/local/clang/include/absl/container/internal/btree_container.h : 561 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        561  |      A B S L _ I\N
T      E| R                                              ^~~~N
AL_X(ins/usr/local/clang/include/absl/container/internal/btree_container.he:r592t:_3o:r _warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
si/usr/local/clang/include/absl/container/internal/btree_container.hg:n511,: 52i:n snote: eexpanded from macro 'ABSL_INTERNAL_X'r
t_o  r511_ | a s s i g n _ h i n tA_BiSmLp_lI,N TcEoRnNsAtL _&A,T
T      R| I  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~B
UT  E562_ | C A P T U R E D _ B Y ( t h i s ) ) )c o n s t   & ,   t r u e ,   f a l s e , 
        |                    ~~~~~~~~~~~~~~~~~~~~~\

      |                                                      ^563
 |  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d ecfoinnset _AiBtSeLr_aItNoTrE(RhNiAnLt_)I FA_BtSrLu_eI(NiTfE_RsNaAtLi_sCfOiMeMdA,) ;.
.      .| )                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
if_/usr/local/clang/include/absl/container/internal/btree_container.hs:a509t:i47s:f inote: eexpanded from macro 'ABSL_INTERNAL_X'd

      |         ^  
509 |           AIn file included from Bs2/s2lax_loop_shape.ccS:L18_:
IIn file included from N../src/s2/s2lax_loop_shape.hT:E41R:
NIn file included from A../src/s2/s2loop.hL:_34A:
TIn file included from T../src/s2/mutable_s2shape_index.hR:I30B:
UIn file included from T/usr/local/clang/include/absl/container/btree_map.hE:_67C:
A/usr/local/clang/include/absl/container/internal/btree_container.hP:T592U:R3E:D _warning: B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]Y
(thi  s592) | ) ,  A B S L _ I N T E R N A L _ X ( i n s e r t _ o\r
_      a| s                                              ^~~~s
ign, in/usr/local/clang/include/absl/container/internal/btree_container.hs:e561r:t3_:o rwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
s/usr/local/clang/include/absl/container/internal/btree_container.hs:i511g:n52_:h inote: nexpanded from macro 'ABSL_INTERNAL_X't
_im  p511l | ,   & & ,   & & ,   tArBuSeL,_
I      N| T  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E
RNA  L593_ | A T T R I B U T E _ C A P T U R E D _tBrYu(et,h icso)n)s)t _ i t e r a t o r ( h i n t )   A B S L _ I N T\E
R      N| A                                                   ^L
_C/usr/local/clang/include/absl/container/internal/common.hO:M32M:A9):; 
note:       macro 'ABSL_INTERNAL_IF_false' defined here| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   32/usr/local/clang/include/absl/container/internal/btree_container.h | :#511d:e47f:i nnote: eexpanded from macro 'ABSL_INTERNAL_X' 
ABS  L511_ | I N T E R N A L _ I FA_BfSaLl_sIeN(TiEfR_NsAaLt_iAsTfTiReIdB,U T.E._.C)A P_T_UVRAE_DA_RBGYS(_t_h
i      s| )        ^)
)                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  In file included from 618s2/s2furthest_edge_query.cc | : 16 :
AIn file included from B../src/s2/s2furthest_edge_query.hS:L33_:
IIn file included from N../src/s2/s2closest_edge_query_base.hT:E32R:
NIn file included from A/usr/local/clang/include/absl/container/btree_set.hL:_66X:
(/usr/local/clang/include/absl/container/internal/btree_container.ht:r564y:_3e:m pwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
ce,   t564r | y _ eAmBpSlLa_cIeN_TiEmRpNlA,L _cXo(nisnts e&r,t _foarl_saes)s;i
g      n| ,                                                               ^ 
in/usr/local/clang/include/absl/container/internal/btree_container.hs:e596r:t9_:o rnote: _macro 'ABSL_INTERNAL_X' defined herea
ssi  g596n | _#hdienfti_niem pAlB,S Lc_oInNsTtE R&N,A
L      _| X  ^(
Fu/usr/local/clang/include/absl/container/internal/btree_container.hn:c509,: 52C:a lnote: lexpanded from macro 'ABSL_INTERNAL_X'e
e,   K509Q | u a l ,   K V a l u eA,B S.L._.I)N T E R N A L _ A T T R I B U T E _ C A P T U\R
E      D| _        ^B
Y(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hi/usr/local/clang/include/absl/container/internal/btree_container.hn:t618_:i3m:p lwarning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
con  s618t |   & ,A
B      S| L  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
IN  T565E | R N A L _ X ( t r y _ e m p l a c e ,c otnrsyt_ e&m,p ltarcuee_,i mtprlu,e ,c
o      | n                  ~~~~~~~~~~~~~~~~~~~~s
t &  ,566  | f a l s e ) ; 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 611 : 52 :c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t_i  t611e | r a t o r ( h i n t )A BASBLS_LI_NITNETRENRANLA_LA_TCTORMIMBAU)T;E
_      C| A                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~P
TU/usr/local/clang/include/absl/container/internal/btree_container.hR:E509D:_47B:Y (note: texpanded from macro 'ABSL_INTERNAL_X'h
is)  )509, |                      A B S L _ I N T E R N A L _ A T\T
R      I| B                                                   ^U
TE_/usr/local/clang/include/absl/container/internal/common.hC:A32P:T9U:R Enote: Dmacro 'ABSL_INTERNAL_IF_false' defined here_
BY(   t32h | i#sd)e)f,i n e   A B S L _ I N T E R N A L _ I F _ f a l s\e
(      i| f                                              ^~~~_
satisfi/usr/local/clang/include/absl/container/internal/btree_container.he:d564,: 3.:. .warning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
_/usr/local/clang/include/absl/container/internal/btree_container.h_:V511A:_52A:R Gnote: Sexpanded from macro 'ABSL_INTERNAL_X'_
_
      |           ^511
 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | In file included from #s2/s2lax_loop_shape.ccd:e18f:
iIn file included from n../src/s2/s2lax_loop_shape.he: 41A:
BIn file included from S../src/s2/s2loop.hL:_34I:
NIn file included from T../src/s2/mutable_s2shape_index.hE:R30N:
AIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:I67F:
_/usr/local/clang/include/absl/container/internal/btree_container.ht:r619u:e63(:i fwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
ati  s619f | i e dA,B S.L._.I)N TiEfR_NsAaLt_iXs(ftireyd_
e      m| p        ^l
ace, try_emIn file included from ps2/s2furthest_edge_query.ccl:a16c:
eIn file included from _../src/s2/s2furthest_edge_query.hi:m33p:
lIn file included from ,../src/s2/s2closest_edge_query_base.h :c32o:
nIn file included from s/usr/local/clang/include/absl/container/btree_set.ht: 66&:
,/usr/local/clang/include/absl/container/internal/btree_container.h :t564r:u3e:) ;warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                                                               ^
  /usr/local/clang/include/absl/container/internal/btree_container.h564: | 596 : 9A:B Snote: Lmacro 'ABSL_INTERNAL_X' defined here_
INT  E596R | N#AdLe_fXi(nien sAeBrStL__oIrN_TaEsRsNiAgLn_,X (iFnusnecr,t _Coarl_laeses,i gKnQ_uhailn,t _KiVmapllu,e ,c o.n.s.t)  & ,
       |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     565  |                           \ 
        |          ^ 
const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                       /usr/local/clang/include/absl/container/internal/btree_container.h :\619
:      3| :                                              ^~~~ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/btree_container.h::67568:
:/usr/local/clang/include/absl/container/internal/btree_container.h3::619 :warning: 3passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  
568 |   A  B619S | L _ IANBTSELR_NIANLT_EXR(NiAnLs_eXr(tt_royr__eamspsliagcne,,  itnrsye_retm_polra_caes_siimgpnl_,h icnotn_sitm p&l,,  tcrounes)t; 
&      ,|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~&
&,
      /usr/local/clang/include/absl/container/internal/btree_container.h| :  ^611
:47:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 509expanded from macro 'ABSL_INTERNAL_X':
52: note:   expanded from macro 'ABSL_INTERNAL_X'611
 |      509  |             A B S L _AIBNSTLE_RINNATLE_RANTATLR_IABTUTTREI_BCUATPET_UCRAEPDT_UBRYE(Dt_hBiYs()t)h,i s ) ) ,                                            \ 
       \| 
                                              ^~~~      
|                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_/usr/local/clang/include/absl/container/internal/btree_container.ha:s620s:i59g:n _warning: hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
nt_  i620m | p l ,A BcSoLn_sItN T&E,R N&A&L,_
X      (| t  ^r
y_/usr/local/clang/include/absl/container/internal/btree_container.he:m511p:l52a:c enote: ,expanded from macro 'ABSL_INTERNAL_X' 
try  _511e | m p l a c e _ i m p lA,B S&L&_,I NfTaElRsNeA)L;_
A      T| T                                                          ^R
IB/usr/local/clang/include/absl/container/internal/btree_container.hU:T596E:_9C:A Pnote: Tmacro 'ABSL_INTERNAL_X' defined hereU
RED  _596B | Y#(dtehfiisn)e) )A B S L _ I N T E R N A L _ X ( F u n c ,   C a l\l
e      e| ,                                                   ^ 
KQ/usr/local/clang/include/absl/container/internal/common.hu:a32l:,9 :K Vnote: amacro 'ABSL_INTERNAL_IF_false' defined herel
ue,    32. | .#.d)e f ine A B S L _ I N T E R N A L _ I F _ f a l s\e
(      i| f        ^_
satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSLIn file included from _s2/s2furthest_edge_query.ccI:N16T:
EIn file included from R../src/s2/s2furthest_edge_query.hN:A33L:
_In file included from X../src/s2/s2closest_edge_query_base.h(:t32r:
yIn file included from _/usr/local/clang/include/absl/container/btree_set.he:m66p:
l/usr/local/clang/include/absl/container/internal/btree_container.ha:c570e:,3 :t rwarning: ypassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
empl  a570c | e _ iAmBpSlL,_ I&N&T,E RfNaAlLs_eX)(;i
n      s| e  ^r
t_/usr/local/clang/include/absl/container/internal/btree_container.ho:r611_:a52s:s inote: gexpanded from macro 'ABSL_INTERNAL_X'n
, i  n611s | e r t _ o r _ a s s iAgBnS_Lh_iInNtT_EiRmNpAlL,_ AcToTnRsItB U&T,E _&C&A,P
T      U| R  ^E
D_/usr/local/clang/include/absl/container/internal/btree_container.hB:Y509(:t52h:i snote: )expanded from macro 'ABSL_INTERNAL_X')
,     509  |                      A B S L _ I N T E R N A\L
_      A| T                                                   ^T
RI/usr/local/clang/include/absl/container/internal/common.hB:U32T:E9_:C Anote: Pmacro 'ABSL_INTERNAL_IF_false' defined hereT
URE   D32_ | B#Yd(etfhiinse) )A,B S L _ I N T E R N A L _ I F _ f a l s e ( i f _\s
a      t| i                                                   ^s
fi/usr/local/clang/include/absl/container/internal/common.he:d32,: 9.:. .note: )macro 'ABSL_INTERNAL_IF_false' defined here 
__V   A32_ | A#RdGeSf_i_n
e       | A        ^B
SL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570In file included from  | s2/s2lax_loop_shape.cc : 18A:
BIn file included from S../src/s2/s2lax_loop_shape.hL:_41I:
NIn file included from T../src/s2/s2loop.hE:R34N:
AIn file included from L../src/s2/mutable_s2shape_index.h_:X30(:
iIn file included from n/usr/local/clang/include/absl/container/btree_map.hs:e67r:
t/usr/local/clang/include/absl/container/internal/btree_container.h_:o621r:_58a:s swarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]g
n,   i621n | s e rAtB_SoLr__IaNsTsEiRgNnA_Lh_iXn(tt_riym_pelm,p lcaocnes,t  t&r,y _&e&m,p
l      a| c  ^e
_i/usr/local/clang/include/absl/container/internal/btree_container.hm:p511l:,52 :& &note: ,expanded from macro 'ABSL_INTERNAL_X' 
tru  e511) | ; 
        |                                                           ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 596 :A9B:S Lnote: _macro 'ABSL_INTERNAL_X' defined hereI
NTE  R596N | A#Ld_eAfTiTnReI BAUBTSEL__CIANPTTEURRNEADL__BXY((Ftuhnics,) )C)a l l e e/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2measures.cc -o s2/s2measures.o
 ,   K Q u a l ,   K V a l u e ,   . . .\)
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d\e
f      i| n        ^e
 ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &/usr/local/clang/include/absl/container/internal/btree_container.h&:,621
:      3| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  571 |     621  |      A B S L _ I N T E R N A Lf_aXl(ster,y _termupel,a cceo,n sttr_yi_teemrpaltaocre(_hiimnptl),  A&B&S,L _tIrNuTeE)R;N
A      L| _  ^C
OM/usr/local/clang/include/absl/container/internal/btree_container.hM:A611):;52
:       | note:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/container/internal/btree_container.h  :611511 | : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511A | B S L _ I N T E R N AALB_SALT_TIRNITBEURTNEA_LC_AAPTTTURRIEBDU_TBEY_(CtAhPiTsU)R)E,D _ B Y ( t h i s ) ) )                              \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31\:
9      :|                                                ^~~~
note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_/usr/local/clang/include/absl/container/internal/btree_container.hC:A572P:T3U:R Ewarning: Dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
BY(t  h572i | s ) )A,B S L _ I N T E R N A L _ X ( i n s e r t _ o r _ a s\s
i      g| n                                              ^~~~,
 insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   /usr/local/clang/include/absl/container/internal/btree_container.ht:r622u:e3,:  fwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
se,   c622o | n s tA_BiStLe_rIaNtToErR(NhAiLn_tX)( tArByS_Le_mIpNlTaEcReN,A Lt_rCyO_MeMmAp)l;a
c      e| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~h
int/usr/local/clang/include/absl/container/internal/btree_container.h_:i509m:p47l:,  note: cexpanded from macro 'ABSL_INTERNAL_X'o
nst   509& | ,   f a l s e , 
        | A  ^B
SL_/usr/local/clang/include/absl/container/internal/btree_container.hI:N611T:E52R:N Anote: Lexpanded from macro 'ABSL_INTERNAL_X'_
ATT  R611I | B U T E _ C A P T U RAEBDS_LB_YI(NtThEiRsN)A)L,_ A T T R I B U T E _ C A P T U R E D _ B Y ( t h\i
s      | )                                              ^~~~)
,           /usr/local/clang/include/absl/container/internal/btree_container.h : 572 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52\:
       note: | expanded from macro 'ABSL_INTERNAL_X'                                                   ^

/usr/local/clang/include/absl/container/internal/common.h  :51132 | : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
      32  | A#BdSeLf_iInNeT EARBNSALL__IANTTTERRINBAULT_EI_FC_AfPaTlUsReE(Di_fB_Ys(atthiissf)i)e)d ,   . . . )   _ _ V A _ A R G S _ _ 
        |          ^ 
 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_eIn file included from ms2/s2furthest_edge_query.ccp:l16a:
cIn file included from e../src/s2/s2furthest_edge_query.h,: 33t:
rIn file included from y../src/s2/s2closest_edge_query_base.h_:e32m:
pIn file included from l/usr/local/clang/include/absl/container/btree_set.ha:c66e:
_/usr/local/clang/include/absl/container/internal/btree_container.hh:i574n:t3_:i mwarning: ppassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
, co  n574s | t   &A,B StLr_uIeN,T
E      R| N  ^A
L_/usr/local/clang/include/absl/container/internal/btree_container.hX:(611i:n52s:e rnote: texpanded from macro 'ABSL_INTERNAL_X'_
or_  a611s | s i g n ,   i n s e rAtB_SoLr__IaNsTsEiRgNnA_Lh_iAnTtT_RiImBpUlT,E _cCoAnPsTtU R&E,D _&B&Y,(
t      h| i  ^s
))/usr/local/clang/include/absl/container/internal/btree_container.h,: 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |                      A B S\L
_      I| N                                                   ^T
ER/usr/local/clang/include/absl/container/internal/common.hN:A31L:_9A:T Tnote: Rmacro 'ABSL_INTERNAL_IF_true' defined hereI
BUT   E31_ | C#AdPeTfUiRnEeD _ABBYS(Lt_hIiNsT)E)R,N A L _ I F _ t r u e ( i f _ s a t i s f i e d ,\ 
.      .| .                                                   ^)
 i/usr/local/clang/include/absl/container/internal/common.hf:_31s:a9t:i snote: fmacro 'ABSL_INTERNAL_IF_true' defined herei
ed
         31|  |         ^#
define ABSL_INTERNAL_IF_trIn file included from us2/s2lax_loop_shape.cce:(18i:
fIn file included from _../src/s2/s2lax_loop_shape.hs:a41t:
iIn file included from s../src/s2/s2loop.hf:i34e:
dIn file included from ,../src/s2/mutable_s2shape_index.h :.30.:
.In file included from )/usr/local/clang/include/absl/container/btree_map.h :i67f:
_/usr/local/clang/include/absl/container/internal/btree_container.hs:a624t:i3s:f iwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d

      |         ^
  624 |   ABSL_INTIn file included from Es2/s2furthest_edge_query.ccR:N16A:
LIn file included from _../src/s2/s2furthest_edge_query.hX:(33t:
rIn file included from y../src/s2/s2closest_edge_query_base.h_:e32m:
pIn file included from l/usr/local/clang/include/absl/container/btree_set.ha:c66e:
,/usr/local/clang/include/absl/container/internal/btree_container.h :t574r:y3_:e mwarning: p'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
ace_h  i574n | t _ iAmBpSlL,_ IcNoTnEsRtN A&L,_ Xt(riunes,e
r      t| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
r_a  s625s | i g n ,   i n s e r t _ o r _ a s s icgonn_shti_nitt_eirmaptlo,r (choinnstt)  &A,B S&L&_,I
N      T| E  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~R
NAL  _575C | O M M A ) ; 
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 611 : 47 :t rnote: uexpanded from macro 'ABSL_INTERNAL_X'e
, tr  u611e | ,   c o n s t _ i t eArBaStLo_rI(NhTiEnRtN)A LA_BASTLT_RIINBTUETREN_ACLA_PCTOUMRMEAD)_;B
Y      (| t                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~h
is)/usr/local/clang/include/absl/container/internal/btree_container.h):,509 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |                      A B S L\_
I      N| T                                              ^~~~E
RNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign/usr/local/clang/include/absl/container/internal/btree_container.h,: 626i:n3s:e rwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
or_a  s626s | i g nA_BhSiLn_tI_NiTmEpRlN,A Lc_oXn(sttr y&_,e m&p&l,a
c      e| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
try  _575e | m p l a c e _ h i n t _ i m p l ,   &t&r,u ef,a ltsreu,e
,       | c  ^o
ns/usr/local/clang/include/absl/container/internal/btree_container.ht:_611i:t52e:r anote: texpanded from macro 'ABSL_INTERNAL_X'o
r(h  i611n | t )   A B S L _ I N TAEBRSNLA_LI_NCTOEMRMNAA)L;_
A      T| T                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~R
IBU/usr/local/clang/include/absl/container/internal/btree_container.hT:E511_:C47A:P Tnote: Uexpanded from macro 'ABSL_INTERNAL_X'R
ED_  B511Y | ( t h i s ) ) ,      A B S L _ I N T E R N A L _ A T T R I B U T E _\C
A      P| T                                                   ^U
RE/usr/local/clang/include/absl/container/internal/common.hD:_32B:Y9(:t hnote: imacro 'ABSL_INTERNAL_IF_false' defined heres
)))    32  |  # d e f i n e   A B S L _ I N T E R N A L _\I
F      _| f                                              ^~~~a
lse(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assigIn file included from ns2/s2lax_loop_shape.cc,: 18i:
nIn file included from s../src/s2/s2lax_loop_shape.he:r41t:
_In file included from o../src/s2/s2loop.hr:_34a:
sIn file included from s../src/s2/mutable_s2shape_index.hi:g30n:
_In file included from h/usr/local/clang/include/absl/container/btree_map.hi:n67t:
_/usr/local/clang/include/absl/container/internal/btree_container.hi:m628p:l3,:  &warning: &passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
 con  s628t |   & ,A
B      S| L  ^_
IN/usr/local/clang/include/absl/container/internal/btree_container.hT:E509R:N52A:L _note: Xexpanded from macro 'ABSL_INTERNAL_X'(
try  _509e | m p l a c e ,   t r yA_BeSmLp_lIaNcTeE_RhNiAnLt__AiTmTpRlI,B U&T&E,_ CtArPuTeU,R
E      D| _  ^B
Y(/usr/local/clang/include/absl/container/internal/btree_container.ht:h611i:s52):) ,note:  expanded from macro 'ABSL_INTERNAL_X' 
      611  |                      A B S L _ I N\T
E      R| N                                                   ^A
L_/usr/local/clang/include/absl/container/internal/common.hA:T32T:R9I:B Unote: Tmacro 'ABSL_INTERNAL_IF_false' defined hereE
_   C32A | P#TdUeRfEiDn_eB YA(BtShLi_sI)N)T,E R N A L _ I F _ f a l s e ( i f _ s a t i s f i e d\,
       .| .                                                   ^.
) /usr/local/clang/include/absl/container/internal/common.h_:_31V:A9_:A Rnote: Gmacro 'ABSL_INTERNAL_IF_true' defined hereS
__
         31|  |         ^#
define ABSIn file included from Ls2/s2furthest_edge_query.cc_:I16N:
TIn file included from E../src/s2/s2furthest_edge_query.hR:N33A:
LIn file included from _../src/s2/s2closest_edge_query_base.hI:F32_:
tIn file included from r/usr/local/clang/include/absl/container/btree_set.hu:e66(:
i/usr/local/clang/include/absl/container/internal/btree_container.hf:_577s:a3t:i swarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ed,   .577. | . )  AiBfS_Ls_aItNiTsEfRiNeAdL
_      X| (        ^i
nsert_or_assign, insIn file included from es2/s2lax_loop_shape.ccr:t18_:
oIn file included from r../src/s2/s2lax_loop_shape.h_:a41s:
sIn file included from i../src/s2/s2loop.hg:n34_:
hIn file included from i../src/s2/mutable_s2shape_index.hn:t30_:
iIn file included from m/usr/local/clang/include/absl/container/btree_map.hp:l67,:
 /usr/local/clang/include/absl/container/internal/btree_container.h&:&628,: 3c:o nwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
 &,
      |     ^628
 |  /usr/local/clang/include/absl/container/internal/btree_container.h :A511B:S52L:_ Inote: Nexpanded from macro 'ABSL_INTERNAL_X'T
ERN  A511L | _ X ( t r y _ e m p lAaBcSeL,_ ItNrTyE_ReNmApLl_aAcTeT_RhIiBnUtT_Ei_mCpAlP,T U&R&E,D _tBrYu(et,h
i      s| )  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
)     629  |                                      c o\n
s      t| _                                                   ^i
te/usr/local/clang/include/absl/container/internal/common.hr:a32t:o9r:( hnote: imacro 'ABSL_INTERNAL_IF_false' defined heren
t)    A32B | S#Ld_eIfNiTnEeR NAABLS_LC_OIMNMTAE)R;N
A      L| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~I
F_f/usr/local/clang/include/absl/container/internal/btree_container.ha:l611s:e47(:i fnote: _expanded from macro 'ABSL_INTERNAL_X's
ati  s611f | i e d ,   . . . )   _A_BVSAL__AIRNGTSE_R_N
A      L| _        ^A
TTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:/usr/local/clang/include/absl/container/internal/btree_container.h16::
638In file included from :../src/s2/s2furthest_edge_query.h63::33 :
In file included from warning: ../src/s2/s2closest_edge_query_base.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66  :
638/usr/local/clang/include/absl/container/internal/btree_container.h | : 579 : 3 :   warning: cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nst   579k | e y _AaBrSgL<_KI>N T&EkR NAABLS_LX_(IiNnTsEeRrNtA_Lo_rA_TaTsRsIiBgUnT,E _iCnAsPeTrUtR_EoDr__BaYs(stihgins_)h)i
n      t| _                                                              ^~~~i
mpl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 618 : 3 :v owarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
 (*a  b618s | l _ nAuBlSlLa_bIlNeT EiRnNvAaLr_iXa(nttr)y(_veomipdl*a caeb,s lt_rnyu_lelmapblialciet_yi_mupnlk,n ocwonn)s,t
       &| ,             ^ 
fals/usr/local/clang/include/absl/base/nullability.he:)257;:
23      :|    ^
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/btree_container.h
:611:  52257: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e611  | a b s l _ n u l l a bAlBeS L__NIuNlTlEaRbNlAeL
_      A| T                      ^T
RIBUTE_CIn file included from As2/s2hausdorff_distance_query.ccP:T16U:
RIn file included from E../src/s2/s2hausdorff_distance_query.hD:_23B:
YIn file included from (../src/s2/s1angle.ht:h28i:
sIn file included from )../src/s2/s2point.h):,27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h&:&31,:
 tr/usr/local/clang/include/absl/synchronization/mutex.hu:e489):;45
:       | warning:                                                          ^
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note:   macro 'ABSL_INTERNAL_X' defined here489
 |      596  |  # dveofiidn e( *AaBbSsLl__InNuTlElRaNbAlLe_ Xi(nFvuanrci,a nCta)l(lveoei,d *K Qaubasll,_ nKuVlallaubei,l i.t.y._)u n k n o w n ) , 
        |                                              ^ 
     /usr/local/clang/include/absl/base/nullability.h : 289 : 34\:
       | note:         ^expanded from macro 'absl_nullability_unknown'

  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/internal/status_internal.h::62129::
3In file included from :/usr/local/clang/include/absl/strings/cord.h :warning: 94passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :62131 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :A490B:S13L:_ Iwarning: Ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T
ERN  A490L | _ X ( t r y _veomipdl*a caeb,s lt_rnyu_lelmapblialciet_/usr/local/clang/include/absl/container/internal/btree_container.hyi:_m648up:nl7k,:n  &owarning: &'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]w,
n  tar  ru648ge | ) ); ;
 
             |              ^|    ^
t
h/usr/local/clang/include/absl/base/nullability.hi:/usr/local/clang/include/absl/container/internal/btree_container.hs289:):)61134 ::A52 B:note: Sexpanded from macro 'absl_nullability_unknown' L
_note: A  expanded from macro 'ABSL_INTERNAL_X'T289T
 | R#IdB  eU611fTi | E n _e L   Ia F bE sT lI_ MnEAu_lBBlOaSUbLNiD_ Il{iN
tT      yE| _      ^~~~RuN
AnLk_nAoTwTnR I_BNUuTlEl__CuAnPsTpUeRcEiDf_iBeYd(
t      h| i                                 ^s
)),                          In file included from \s2/s2hausdorff_distance_query.cc
:      16| :
                                                   ^In file included from 
../src/s2/s2hausdorff_distance_query.h:23/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s1angle.h::928::
 In file included from note: ../src/s2/s2point.hmacro 'ABSL_INTERNAL_IF_true' defined here:
27:
In file included from    ../src/s2/s2coder.h31: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hI:N94T:
EIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hN:A31L:
_/usr/local/clang/include/absl/synchronization/mutex.hI:F499_:t35r:u ewarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
f_s  a499t | i s fvioeidd,  E.n.a.b)l eiDfe_bsuagtLiosgf(iceodn
s      t|          ^c
har* absl_nullable In file included from ns2/s2furthest_edge_query.cca:m16e:
)In file included from ;../src/s2/s2furthest_edge_query.h
:      33| :
                                  ^In file included from 
../src/s2/s2closest_edge_query_base.h:32/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/container/btree_set.h::2366::
 /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nullable'621
:3:   257warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]#
defin  e621  | a b sAlB_SnLu_lIlNaTbElReN A_LN_uXl(ltarbyl_ee
m      p| l                      ^a
ce, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2latlng_rect.cc:18:
In file included from ../src/s2/s2latlng_rect.h:30:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRe/usr/local/clang/include/absl/container/internal/btree_container.hp:*622 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
onnu  l622l |   S tAaBtSuLs_:I:NRTeEpRTNoAPLo_iXn(tterry(_
e      m| p                                         ^l
ace,/usr/local/clang/include/absl/base/nullability.h :t241r:y22_:e mnote: pexpanded from macro 'absl_nonnull'l
ac  e241_ | h#idnetf_iinmep la,b sclo_nnsotn n&u,l lf a_lNsoen,n
u      l| l  ^

      |                      ^/usr/local/clang/include/absl/container/internal/btree_container.h
:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                    In file included from  s2/s2latlng_rect.cc : 18 :
 In file included from  ../src/s2/s2latlng_rect.h\:
30      :
| In file included from                                                    ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2point.h32::279:
:In file included from  ../src/s2/s2coder.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here23
:
/usr/local/clang/include/absl/status/status.h   :321038 | :#33d:e fwarning: intype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ABS L1038_ | I N T E RsNtAaLt_uIsF__ifnatlesren(ailf:_:sSattaitsufsiReedp,*  .a.b.s)l __n_oVnAn_uAlRlG Sr_e_p
)       | {        ^

      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |     In file included from  s2/s2latlng_rect.cc : 18 :
 In file included from  ../src/s2/s2latlng_rect.hA:B30S:
LIn file included from _../src/s2/s1angle.hI:N28T:
EIn file included from R../src/s2/s2point.hN:A27L:
_In file included from A../src/s2/s2coder.hT:T23R:
I/usr/local/clang/include/absl/status/status.hB:U1063T:E13_:C Awarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
URE D1063_ | BcYo(ntshti sc)h)a,r *   a b s l _ n o n n u l l   S t a t u s M e s s a\g
e      A| s                                                   ^C
St/usr/local/clang/include/absl/container/internal/common.hr:(31
:      9| :            ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/base/nullability.h
:241:   2231: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #AdBeSfL_INTiEnReN AaLb_sIlF__ntornuneu(lilf __sNaotninsuflile
d      ,|                       ^.
..) if_satisfied
      |         ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/status/status.h626::673:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
626In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31A:
BS/usr/local/clang/include/absl/synchronization/mutex.hL:_549I:40N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_X  (549t | r y _setmaptliacc ev,o itdr yI_necmrpelmaecnet_Shyinncth_Siemmp(lM,u t&e&x,*  faablssle_,n
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.h :m611u:,52
:       | note:                                        ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h  :611241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
      241A | B#SdLe_fIiNnTeE RaNbAsLl__AnToTnRnIuBlUlT E__NCoAnPnTuUlRlE
D      _| B                     ^Y
(this)),          In file included from  s2/s2hausdorff_distance_query.cc : 16 :
 In file included from  ../src/s2/s2hausdorff_distance_query.h : 23 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h\:
27      :
| In file included from                                                    ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/status/status.h32::679:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here29
:
In file included from /usr/local/clang/include/absl/strings/cord.h   :3294 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.he:f31i:
n/usr/local/clang/include/absl/synchronization/mutex.he: 550A:B64S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN  A550L | _ I F _ f a l s e ( i f _ s a t i s f i e d ,   . . . )   _ _ V Ab_aAsReG_Si_n_t
e      r| n        ^a
l::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(MuIn file included from ts2/s2furthest_edge_query.cce:x16*:
 In file included from a../src/s2/s2furthest_edge_query.hb:s33l:
_In file included from n../src/s2/s2closest_edge_query_base.ho:n32n:
uIn file included from l/usr/local/clang/include/absl/container/btree_set.hl: 66m:
u/usr/local/clang/include/absl/container/internal/btree_container.h,:
628      :| 3:                                        ^warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/base/nullability.h:241:22  :628  | note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bXs(lt_rnyo_nenmupllla c_eN,o ntnruyl_le
m      p| l                     ^a
ce_hint_implIn file included from ,s2/s2hausdorff_distance_query.cc :&16&:
,In file included from  ../src/s2/s2hausdorff_distance_query.ht:r23u:
eIn file included from ,../src/s2/s1angle.h
:      28| :
  ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 611../src/s2/s2coder.h::5223::
 In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'ABSL_INTERNAL_X':
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :61129 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
A/usr/local/clang/include/absl/synchronization/mutex.hB:S552L:_64I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_  A552T | T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,            b a s e _ i n t e r n a l : : P e r T h r\e
a      d| S                                                   ^y
nc/usr/local/clang/include/absl/container/internal/common.hh:*31 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_true' defined heren
onn   u31l | l# dwe,f
i      n| e                                                               ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241I | F#_dterfuien(ei fa_bssalt_insofnineudl,l  ._.N.o)n niufl_ls
a      t| i                     ^s
fied
      |         ^
In file included from In file included from s2/s2furthest_edge_query.ccs2/s2hausdorff_distance_query.cc::1616:
:
In file included from In file included from ../src/s2/s2furthest_edge_query.h../src/s2/s2hausdorff_distance_query.h::3323:
:
In file included from In file included from ../src/s2/s2closest_edge_query_base.h../src/s2/s1angle.h::3228:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h../src/s2/s2point.h::6627:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2coder.h628::233:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h628: | 94 :
 In file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hB:S31L:
_/usr/local/clang/include/absl/synchronization/mutex.hI:N556T:E38R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
X(tr  y556_ | e m pvloaicde ,L otcrkyS_leomwpLloaocpe(_Shyinncth_WiamiptlP,a r&a&m,s *t raubes,l
_      n| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nul  l629  | w a i t p ,   i n t   f l a g s ) ; 
c      o| n                                     ^s
t_/usr/local/clang/include/absl/base/nullability.hi:t241e:r22a:t onote: rexpanded from macro 'absl_nonnull'(
hi  n241t | )# dAeBfSiLn_eI NaTbEsRlN_AnLo_nCnOuMlMlA )_;N
o      n| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 611                     ^:
47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABIn file included from Ss2/s2hausdorff_distance_query.ccL:_16I:
NIn file included from T../src/s2/s2hausdorff_distance_query.hE:R23N:
AIn file included from L../src/s2/s1angle.h_:A28T:
TIn file included from R../src/s2/s2point.hI:B27U:
TIn file included from E../src/s2/s2coder.h_:C23A:
PIn file included from T/usr/local/clang/include/absl/status/status.hU:R67E:
DIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hB:Y29(:
tIn file included from h/usr/local/clang/include/absl/strings/cord.hi:s94):
)In file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 558 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      558  |      b o o l   L\o
c      k| S                                              ^~~~l
owWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2hausdorff_distance_query.h638::2363:
:In file included from  ../src/s2/s1angle.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]28
:
In file included from ../src/s2/s2point.h:27:
  In file included from 638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullIn file included from as2/s2lax_loop_shape.ccb:l18e:
 In file included from c../src/s2/s2lax_loop_shape.ho:n41d:
,In file included from 
../src/s2/s2loop.h      :| 34                                                         ^:

In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/base/nullability.h33::
257In file included from :../src/s2/base/commandlineflags.h23::21 :
In file included from note: /usr/local/clang/include/absl/flags/flag.hexpanded from macro 'absl_nullable':
40:
  /usr/local/clang/include/absl/flags/commandlineflag.h257: | 163#:d56e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 absl  _163n | u l lbaobolle  P_aNruslelFarbolme(
a      b| s                      ^l
::string_view value, std::string* absl_nonIn file included from ns2/s2hausdorff_distance_query.ccu:l16l:
 In file included from e../src/s2/s2hausdorff_distance_query.hr:r23o:
rIn file included from )../src/s2/s1angle.h;:
28      :
| In file included from                                                        ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241565::2236::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  565   | 241  |  #vdoeifdi nUen laobsl_cnkoSnlnouwl(lS y_nNcohnWnauiltlP
a      r| a                     ^m
s* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21In file included from :
s2/s2hausdorff_distance_query.ccIn file included from :/usr/local/clang/include/absl/flags/flag.h16::
40In file included from :
../src/s2/s2hausdorff_distance_query.h:/usr/local/clang/include/absl/flags/commandlineflag.h23::
193In file included from :../src/s2/s1angle.h27::28 :
In file included from warning: ../src/s2/s2point.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23  :
193In file included from  | /usr/local/clang/include/absl/status/status.h : 67v:
iIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.ht:u29a:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hv:o94i:
dIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hR:e31a:
d/usr/local/clang/include/absl/synchronization/mutex.h(:v576o:i49d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o576n | n u lvlo idds tT)r ycRoenmsotv e=( b0a;s
e      _| i                          ^n
ter/usr/local/clang/include/absl/base/nullability.hn:a241l::22::P enote: rexpanded from macro 'absl_nonnull'T
hr  e241a | d#Sdyenfcihn*e  aabbssll__nnoonnnnuullll  s_)N;o
n      n| u                                                ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignorIn file included from es2/s2lax_loop_shape.ccd:*18/:
)In file included from  ../src/s2/s2lax_loop_shape.h{:}41
:
      In file included from | ../src/s2/s2loop.h                                       ^:
34:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h::25733::
23In file included from :../src/s2/base/commandlineflags.h :21note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/flags/flag.h:42  :
257In file included from  | /usr/local/clang/include/absl/flags/internal/flag.h#:d30e:
fi/usr/local/clang/include/absl/base/call_once.hn:e52 :a24b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ullab   l52e |  s_tNdu:l:laatbolmei
c      <| u                      ^i
nt32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   expIn file included from ls2/s2lax_loop_shape.cci:c18i:
tIn file included from  ../src/s2/s2lax_loop_shape.hM:u41t:
eIn file included from x../src/s2/s2loop.hL:o34c:
kIn file included from (../src/s2/mutable_s2shape_index.hM:u33t:
eIn file included from x../src/s2/base/commandlineflags.h&: 21m:
uIn file included from  /usr/local/clang/include/absl/flags/flag.hA:B42S:
LIn file included from _/usr/local/clang/include/absl/flags/internal/flag.hI:N30T:
E/usr/local/clang/include/absl/base/call_once.hR:N111A:L40_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBUT  E111_ | CvAoPiTdU RLEoDw_LBeYv(etlhCiasl)l)O
n      c| e                                                                   ^~~~(
absl::once_flag* absl_nonnull flag, Callable&/usr/local/clang/include/absl/synchronization/mutex.h&: 635f:n29,:
       | warning:                                        ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :63522 | :   note: eexpanded from macro 'absl_nonnull'x
pl  i241c | i#td eMfuitneex Laobcskl(_Mnuotnenxu*l la b_sNlo_nnnounlnlu
l      l|                       ^m
u) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2loop.cc850: | 18 :
 In file included from  ../src/s2/s2loop.h : 32 :
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from T/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u40l:
lIn file included from  /usr/local/clang/include/absl/log/internal/nullstream.ho:b37j:
ec/usr/local/clang/include/absl/strings/string_view.ht:,53
:      54| :               ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22: note: expanded from macro 'absl_nonnull'   
53 |   c241o | n#sdteefxipnre  satbrsiln_gn_ovnineuwl lN u_lNloSnanfuelSlt
r      i| n                     ^g
View(const char* absl_nullabIn file included from ls2/s2hausdorff_distance_query.cce: 16p:
)In file included from  ../src/s2/s2hausdorff_distance_query.h{:
23      :
| In file included from                                                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27257:
:In file included from 23../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l851l:a45b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nul  l851a | b l e 
        |                        ^b
ool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const: 31C:o ndwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
ion* ab  s733l | _cnoonnsntuelxlp rc )S;p
a      n| <                                                   ^T
> /usr/local/clang/include/absl/base/nullability.hM:a241k:e22S:p anote: nexpanded from macro 'absl_nonnull'(
T*   241a | b#sdle_fniunlel aabblsel _pntorn nAuBlSlL __ANToTnRnIuBlUlT
E      _| L                     ^I
FETIME_BOUND,
      |                               ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2hausdorff_distance_query.cc::25716::
23In file included from :../src/s2/s2hausdorff_distance_query.h :23note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s1angle.h:28:
  In file included from 257../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l956e:
52      :|                        ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2latlng_rect_bounder.cc::24118::
22In file included from :../src/s2/s2latlng_rect_bounder.h :21note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2latlng.h:31  :
241In file included from  | ../src/s2/r2.h#:d22e:
fIn file included from i../src/s2/util/math/vector.hn:e36 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26                     ^
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2hausdorff_distance_query.cc:  16739:
 | In file included from S../src/s2/s2hausdorff_distance_query.hp:a23n:
<In file included from T../src/s2/s1angle.h>: 28M:
aIn file included from k../src/s2/s2point.he:S27p:
aIn file included from n../src/s2/s2coder.h(:T23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94 :
bIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hg:i31n:
 /usr/local/clang/include/absl/synchronization/mutex.hA:B958S:L50_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBU  T958E | _ L IsFtEaTtIiMcE _bBoOoUlN DC,a
s      t| A                    ^n
dCa/usr/local/clang/include/absl/base/nullability.hl:l257M:e23t:h onote: dexpanded from macro 'absl_nullable'(
co  n257s | t# dCeofnidniet iaobns*l _anbuslll_anbolnen u_lNlu lcl)a;b
l      e| 
                                                 ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2latlng_rect_bounder.cci:n18e:
 In file included from a../src/s2/s2latlng_rect_bounder.hb:s21l:
_In file included from n../src/s2/s2latlng.ho:n31n:
uIn file included from l../src/s2/r2.hl: 22_:
NIn file included from o../src/s2/util/math/vector.hn:n36u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from In file included from s2/s2hausdorff_distance_query.cc/usr/local/clang/include/absl/log/internal/structured_proto.h::1627:
:
In file included from In file included from ../src/s2/s2hausdorff_distance_query.h/usr/local/clang/include/absl/log/internal/proto.h::2334:
:
In file included from /usr/local/clang/include/absl/types/span.h../src/s2/s1angle.h::74028::
21In file included from :../src/s2/s2point.h :27warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
  In file included from 740/usr/local/clang/include/absl/status/status.h | : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
T/usr/local/clang/include/absl/synchronization/mutex.h*: 961a:b34s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b961l | e   esntda)t inco ebxocoelp tC a{l
l      B| y                    ^R
ef/usr/local/clang/include/absl/base/nullability.h(:c257o:n23s:t  note: Texpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bssell_fn)u l{l
a      b| l                                 ^e
 _/usr/local/clang/include/absl/base/nullability.hN:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull'

      |                         ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2lax_loop_shape.cc241: | 18#:
dIn file included from e../src/s2/s2lax_loop_shape.hf:i41n:
eIn file included from  ../src/s2/s2loop.ha:b34s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:o41n:
nIn file included from u../src/s2/s2cell_id.hl:l43 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnul/usr/local/clang/include/absl/container/internal/raw_hash_set.hl: 2692_:N58o:n nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
l
      |                      ^
 2692 |       coIn file included from ns2/s2lax_loop_shape.ccs:t18 :
TIn file included from &../src/s2/s2lax_loop_shape.h :v41a:
lIn file included from u../src/s2/s2loop.he: 34A:
BIn file included from S../src/s2/mutable_s2shape_index.hL:_41I:
NIn file included from T../src/s2/s2cell_id.hE:R43N:
AIn file included from L../src/s2/s1angle.h_:A28T:
TIn file included from R../src/s2/s2point.hI:B27U:
TIn file included from E../src/s2/s2coder.h_:C23A:
PIn file included from T/usr/local/clang/include/absl/status/status.hU:R67E:
D/usr/local/clang/include/absl/status/internal/status_internal.h_:B150Y:(25t:h iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
)
      |                                                            ^~~~150
 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect.cc:26:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2lax_loop_shape.cc:18  :
241In file included from  | ../src/s2/s2lax_loop_shape.h#:d41e:
fIn file included from i../src/s2/s2loop.hn:e34 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l41_:
nIn file included from o../src/s2/s2cell_id.hn:n43u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonIn file included from ns2/s2latlng_rect.ccu:l26l:
 /usr/local/clang/include/absl/flags/flag.hS:t118a:t29u:s :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
epTo  P118o | ivnotiedr (S
e      t| F                                         ^l
ag(a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::F lnote: aexpanded from macro 'absl_nonnull'g
<T  >241* |  #adbesfli_nneo nanbuslll_ nfolnangu,l lc o_nNsotn nVu&l lv
)       | {                     ^

      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_loop_shape.cc:18:
In file included from ../src/s2/s2lax_loop_shape.h:41:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnaIn file included from ls2/s2lax_loop_shape.cci:g18n:
eIn file included from d../src/s2/s2lax_loop_shape.hL:o41a:
dIn file included from 1../src/s2/s2loop.h6:(34c:
oIn file included from n../src/s2/mutable_s2shape_index.hs:t41 :
vIn file included from o../src/s2/s2cell_id.hi:d43*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23p:
)/usr/local/clang/include/absl/status/status.h :{1063
:      13| :                                            ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sSlt_antounsnMuelsls a_gNeoAnsnCuSltlr
(      
|                            ^| 
            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* aIn file included from bs2/s2hausdorff_distance_query.ccs:l16_:
nIn file included from o../src/s2/s2hausdorff_distance_query.hn:n23u:
lIn file included from l../src/s2/s1angle.h :p28):
 In file included from {../src/s2/s2point.h
:      27| :
                                            ^In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/strings/cord.h  :2411140 | :#49d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e abs l1140_ | n o n n u l l   _ N o n n u l l 
        |                       ^ 
           CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2loop_measures.ccl:l18 :
_In file included from N../src/s2/s2loop_measures.ho:n33n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonIn file included from ns2/s2hausdorff_distance_query.ccu:l16l:
 In file included from p../src/s2/s2hausdorff_distance_query.h,: 23u:
iIn file included from n../src/s2/s1angle.ht:1286:
_In file included from t../src/s2/s2point.h :v27):
 In file included from {../src/s2/s2coder.h
:      23| :
                                   ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'1146
:10:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi n1146e |  CaobrsdlR_enpo*n naublsll __nNoonnnnuullll 
N      e| w                     ^E
xternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2loop_measures.ccn:n18u:
lIn file included from l../src/s2/s2loop_measures.h :_33N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 24                     ^:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
l
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uIn file included from is2/s2hausdorff_distance_query.ccn:t166:
4In file included from _../src/s2/s2hausdorff_distance_query.ht: 23v:
)In file included from  ../src/s2/s1angle.h{:
28      :
| In file included from                                    ^../src/s2/s2point.h
:27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241 | /usr/local/clang/include/absl/strings/cord.h#:d1183e:f47i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_ n1183o | n n u l l   _ N o n n u l l 
        |                       ^ 
                   CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2latlng_rect.cc:30:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect.cc:30:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from ds2/s2loop_measures.cce:f18i:
nIn file included from e../src/s2/s2loop_measures.h :a33b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b24l:
eIn file included from  /usr/local/clang/include/absl/hash/hash.h_:N89u:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.ha:b79l:
e
/usr/local/clang/include/absl/base/internal/endian.h      :| 160                      ^:
36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 In file included from 1258s2/s2loop_measures.cc | :i18n:
lIn file included from i../src/s2/s2loop_measures.hn:e33 :
cIn file included from o../src/s2/s1angle.hr:d28_:
iIn file included from n../src/s2/s2point.ht:e24r:
nIn file included from a/usr/local/clang/include/absl/hash/hash.hl::89::
CIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hr:d79R:
e/usr/local/clang/include/absl/base/internal/endian.hp:F164l:a27t:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n164o | ninnulliln
e       | v                                   ^o
id/usr/local/clang/include/absl/base/nullability.h :S241t:o22r:e 1note: 6expanded from macro 'absl_nonnull'(
vo  i241d | *# daebfsiln_en oanbnsull_ln opn,n uuliln t_1N6o_ntn uvl)l 
{      
|                            ^| 
                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(constIn file included from  s2/s2hausdorff_distance_query.ccv:o16i:
dIn file included from *../src/s2/s2hausdorff_distance_query.h :a23b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from p../src/s2/s2coder.h): 23{:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                   ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:22/usr/local/clang/include/absl/strings/cord.h:: 1268:note: 51expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de f1268i | nien laibnsel _vnooindn uClolr d_:N:oInnnluilnle
R      e| p                     ^:
:EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2loop_measures.cc
:18:
  In file included from 241../src/s2/s2loop_measures.h | :#33d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s24l:
_In file included from n/usr/local/clang/include/absl/hash/hash.ho:n89n:
uIn file included from l/usr/local/clang/include/absl/hash/internal/hash.hl: 79_:
N/usr/local/clang/include/absl/base/internal/endian.ho:n172n:u27l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  172 | inline void Store3In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
2(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:In file included from 36s2/s2hausdorff_distance_query.cc:
:In file included from 16../src/s2/base/logging.h:
:In file included from 21../src/s2/s2hausdorff_distance_query.h:
:In file included from 23/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 53/usr/local/clang/include/absl/status/internal/status_internal.h:
:29:
/usr/local/clang/include/absl/types/source_location.h:/usr/local/clang/include/absl/strings/cord.h113::150519::41 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1131505 |  |  i n l i n ec ovnositd  cChoarrd*: :aCbosply_TnooAnrnrualylI mfpill(ec_hnaarm*e  a=b s_l_n_obnuniulltli nd_sFtI)L Ec(o)n)s t{ 
{      
|                         ^| 
                                        ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.hIn file included from :s2/s2hausdorff_distance_query.cc53::
16:
/usr/local/clang/include/absl/types/source_location.hIn file included from :../src/s2/s2hausdorff_distance_query.h133::2325:
:In file included from  ../src/s2/s1angle.h:warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27:
  In file included from 133../src/s2/s2coder.h | : 23 :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
eIn file included from x/usr/local/clang/include/absl/status/internal/status_internal.hp:r29 :
c/usr/local/clang/include/absl/strings/cord.ho:1514n:s29t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r*  a1514b | s l _ n ocnonrudl_li nftielren_anla:m:eC(o)r dcRoenps*t  anboselx_cneopntn u{l
l       | t                        ^r
ee/usr/local/clang/include/absl/base/nullability.h): 241{:
22      :|                              ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:  241241: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fnionnen ualbls l__Nnoonnnnuullll
       _| N                     ^o
nnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            cIn file included from os2/s2hausdorff_distance_query.ccn:s16t:
 In file included from c../src/s2/s2hausdorff_distance_query.hh:a23r:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
fIn file included from i/usr/local/clang/include/absl/status/status.hl:e67_:
nIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hm:e29):

      /usr/local/clang/include/absl/strings/cord.h| :                                       ^1525
:29:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull' 
1525 |    241  |  # dceofridn_ei natbesrln_anlo:n:nCuolrld R_eNpo*n naublsll
_      n| o                     ^n
null tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2latlng_rect_bounder.ccn:n18u:
lIn file included from l../src/s2/s2latlng_rect_bounder.h :_21N:
oIn file included from n../src/s2/s2latlng.hn:u31l:
lIn file included from 
../src/s2/r2.h      :| 22                     ^:

In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2hausdorff_distance_query.ccn:u16l:
lIn file included from  ../src/s2/s2hausdorff_distance_query.h_:N23o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessIn file included from as2/s2lax_polygon_shape.ccg:e18(:
cIn file included from o../src/s2/s2lax_polygon_shape.hn:s31t:
 In file included from c../src/s2/encoded_s2point_vector.hh:a29r:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
fIn file included from i/usr/local/clang/include/absl/strings/cord.hl:e86,:
 i/usr/local/clang/include/absl/strings/cord_analysis.hn:t32 :l47i:n ewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                          ^
   32/usr/local/clang/include/absl/base/nullability.h | :s241i:z22e:_ tnote:  expanded from macro 'absl_nonnull'G
et  E241s | t#idmeaftiendeM eambosrly_Unsoangneu(lclo n_sNto nCnourldlR
e      p| *                     ^ 
absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2latlng_rect_bounder.ccl:l18
:
      In file included from | ../src/s2/s2latlng_rect_bounder.h                     ^:
21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:In file included from 26s2/s2lax_polygon_shape.cc:
:18/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 78../src/s2/s2lax_polygon_shape.h::2631::
 In file included from ../src/s2/encoded_s2point_vector.hwarning: :29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23:
   In file included from 78/usr/local/clang/include/absl/status/status.h | : 67 :
LIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hg:M29e:
sIn file included from s/usr/local/clang/include/absl/strings/cord.ha:g86e:
(/usr/local/clang/include/absl/strings/cord_analysis.hc:o50n:s49t:  cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r* a   b50s | ls_inzoen_ntu lGle tfMiolree,P riencti sleiMneem,o
r      y| U                         ^s
ag/usr/local/clang/include/absl/base/nullability.he:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'C
or  d241R | e#pd*e faibnsel _anbosnln_unloln nruelpl) ;_
N      o| n                                                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2latlng_rect_bounder.cco:n18n:
uIn file included from l../src/s2/s2latlng_rect_bounder.hl:
21      :
| In file included from                      ^../src/s2/s2latlng.h
:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2lax_polygon_shape.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h18::
41In file included from :
../src/s2/s2lax_polygon_shape.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h31::
26In file included from :
../src/s2/encoded_s2point_vector.h:/usr/local/clang/include/absl/log/internal/log_message.h29::
80In file included from :../src/s2/s2coder.h26::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29   :
80In file included from  | /usr/local/clang/include/absl/strings/cord.h : 86L:
o/usr/local/clang/include/absl/strings/cord_analysis.hg:M56e:s56s:a gwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
cons   t56  | cshiazre*_ ta bGselt_Ensotninmualtle dfFialier,S hianrte Mleimnoer,y
U      s| a                         ^g
e(/usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  Cnote: oexpanded from macro 'absl_nonnull'r
dR  e241p | *# daebfsiln_en oanbnsull_ln ornenpu)l;l
       _| N                                                       ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2latlng_rect_bounder.ccn:u18l:
lIn file included from 
../src/s2/s2latlng_rect_bounder.h      :| 21                     ^:

In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:41:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:41:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
380 warnings generated.
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_tIn file included from *s2/s2hausdorff_distance_query.cc :a16b:
sIn file included from l../src/s2/s2hausdorff_distance_query.h_:n23u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h&: 23v:
)In file included from ;/usr/local/clang/include/absl/status/status.h
:      67| :
                   ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::2571672::2341::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  257 |  #1672d | eifnilnien ea bvsoli_dn uClolradb:l:eA d_vNaunlclea(bClhea
r      I| t                      ^e
rator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2latlng_rect_bounder.cc | :#18d:
eIn file included from f../src/s2/s2latlng_rect_bounder.hi:n21e:
 In file included from a../src/s2/s2latlng.hb:s31l:
_In file included from n../src/s2/r2.ho:n22n:
uIn file included from l../src/s2/util/math/vector.hl: 36_:
NIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h
:      37| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2furthest_edge_query.cc_:n16o:
nIn file included from n../src/s2/s2furthest_edge_query.hu:l33l:
 In file included from _../src/s2/s2closest_edge_query_base.hN:o41n:
nIn file included from u../src/s2/s2cell_union.hl:l29
:
      In file included from | /usr/local/clang/include/absl/flags/flag.h                     ^:
42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24In file included from :s2/s2latlng_rect_bounder.cc :18warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2latlng_rect_bounder.h
:21:
In file included from ../src/s2/s2latlng.h:   3152:
 | In file included from s../src/s2/r2.ht:d22::
:In file included from a../src/s2/util/math/vector.ht:o36m:
iIn file included from c../src/s2/base/logging.h<:u21i:
nIn file included from t/usr/local/clang/include/absl/log/check.h3:237_:
tIn file included from >/usr/local/clang/include/absl/log/internal/check_impl.h*: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l181_:n58o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l C  o181n | t r o l Wcoornds(t
       a| b                       ^s
l::S/usr/local/clang/include/absl/base/nullability.ht:a241t:u22s:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln es taabtsuls_,n ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull prefIn file included from is2/s2furthest_edge_query.ccx:)16;:

In file included from       ../src/s2/s2furthest_edge_query.h| :                                                         ^33
:
In file included from ../src/s2/s2closest_edge_query_base.h/usr/local/clang/include/absl/base/nullability.h::41241:
:In file included from 22../src/s2/s2cell_union.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/flags/flag.h
:42:
  In file included from 241/usr/local/clang/include/absl/flags/internal/flag.h | :#30d:
e/usr/local/clang/include/absl/base/call_once.hf:i53n:e22 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no   n53n | u l l   _aNbosnln:u:loln
c      e| _                     ^f
lag* absl_nonnull flag);In file included from 
s2/s2latlng_rect_bounder.cc      :| 18                     ^:

In file included from ../src/s2/s2latlng_rect_bounder.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :../src/s2/s2latlng.h22::31 :
In file included from note: ../src/s2/r2.hexpanded from macro 'absl_nonnull':
22:
In file included from   ../src/s2/util/math/vector.h241: | 36#:
dIn file included from e../src/s2/base/logging.h:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u189:l28l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l189l | 
i      n| l                     ^i
ne const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2furthest_edge_query.ccn:n16u:
lIn file included from l../src/s2/s2furthest_edge_query.h
:      33| :
                     ^In file included from 
../src/s2/s2closest_edge_query_base.h:41:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uinIn file included from ts2/s2latlng_rect_bounder.cc3:218_:
tIn file included from >../src/s2/s2latlng_rect_bounder.h*: 21a:
bIn file included from s../src/s2/s2latlng.hl:_31n:
oIn file included from n../src/s2/r2.hn:u22l:
lIn file included from  ../src/s2/util/math/vector.hb:a36s:
eIn file included from _../src/s2/base/logging.hi:n21t:
eIn file included from r/usr/local/clang/include/absl/log/check.hn:a37l:
:In file included from :/usr/local/clang/include/absl/log/internal/check_impl.hC:o21n:
t/usr/local/clang/include/absl/log/internal/check_op.hr:o193l:W21o:r dwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                 ^
  193 | /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  anote: bexpanded from macro 'absl_nonnull's
l:  :241S | t#adteufsi*n ea basbls_ln_onnonnunlull lA s_SNtoantnus(ucloln
s      t|                       ^a
bsl::StatuIn file included from ss2/s2furthest_edge_query.ccO:r16<:
TIn file included from >../src/s2/s2furthest_edge_query.h&: 33s:
)In file included from  ../src/s2/s2closest_edge_query_base.h{:
41      :
| In file included from                     ^../src/s2/s2cell_union.h
:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/flags/flag.h241::4222:
:In file included from  /usr/local/clang/include/absl/flags/internal/flag.h:note: 30expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/base/call_once.h:  97241: | 18#:d e/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2memory_tracker.cc -o s2/s2memory_tracker.o
warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne    a97b | s l _ n o n nounlcle __fNloangn*u lalb
s      l| _                     ^n
onnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2latlng_rect_bounder.ccn:n18u:
lIn file included from l../src/s2/s2latlng_rect_bounder.h :_21N:
oIn file included from n../src/s2/s2latlng.hn:u31l:
lIn file included from 
../src/s2/r2.h      :| 22                     ^:

In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2furthest_edge_query.cc :_16N:
oIn file included from n../src/s2/s2furthest_edge_query.hn:u33l:
lIn file included from 
../src/s2/s2closest_edge_query_base.h      :| 41                     ^:

In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(abslIn file included from :s2/s2latlng_rect_bounder.cc::o18n:
cIn file included from e../src/s2/s2latlng_rect_bounder.h_:f21l:
aIn file included from g../src/s2/s2latlng.h*: 31a:
bIn file included from s../src/s2/r2.hl:_22n:
oIn file included from n../src/s2/util/math/vector.hn:u36l:
lIn file included from  ../src/s2/base/logging.hf:l21a:
gIn file included from ,/usr/local/clang/include/absl/log/check.h :C37a:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
e/usr/local/clang/include/absl/log/internal/check_op.h&:&209 :f15n:, 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                       ^
  209/usr/local/clang/include/absl/base/nullability.h | : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en oanbnsull_ln oNnenwuSltlr i_nNgo(n)n;u
l      l| 
              ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NIn file included from us2/s2furthest_edge_query.ccl:l16a:
bIn file included from l../src/s2/s2furthest_edge_query.he:
33      :
| In file included from                       ^../src/s2/s2closest_edge_query_base.h
:41:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnIn file included from cs2/s2loop_measures.cce:I18m:
pIn file included from l../src/s2/s2loop_measures.h(:s33t:
dIn file included from :../src/s2/s1angle.h::a28t:
oIn file included from m../src/s2/s2point.hi:c24<:
uIn file included from i/usr/local/clang/include/absl/hash/hash.hn:t893:
2In file included from _/usr/local/clang/include/absl/hash/internal/hash.ht:>89*:
 In file included from a/usr/local/clang/include/absl/numeric/int128.hb:s41l:
_/usr/local/clang/include/absl/types/compare.hn:o78n:n22u:l lwarning:  'enable_if' is a clang extension [-Wgcc-compat]c
ontr   o78l | , 
        |                                          ^ 
 __/usr/local/clang/include/absl/base/nullability.ha:t241t:r22i:b unote: texpanded from macro 'absl_nonnull'e
__  (241( | e#ndaebflien_ei fa(bns l=_=n o0n,n u"lOln l_yN olnintuelrla
l       | `                     ^0
` is allowed."))) {}
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullablIn file included from es2/s2furthest_edge_query.cc
:      16| :
                      ^In file included from 
../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:41:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2latlng_rect_bounder.cc::2218::
 In file included from ../src/s2/s2latlng_rect_bounder.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from ../src/s2/s2latlng.h  :24131 | :
#In file included from d../src/s2/r2.he:f22i:
nIn file included from e../src/s2/util/math/vector.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l292l:
13      :|                       ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | coIn file included from ns2/s2furthest_edge_query.ccs:t16 :
cIn file included from h../src/s2/s2furthest_edge_query.ha:r33*:
 In file included from a../src/s2/s2closest_edge_query_base.hb:s41l:
_In file included from n../src/s2/s2cell_union.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/flags/flag.hl: 42o:
pIn file included from e/usr/local/clang/include/absl/flags/internal/flag.hr:a30t:
o/usr/local/clang/include/absl/base/call_once.hr:<195<:(16s:t dwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
bas  i195c | _ o s t roenacme<_cfhlaarg,*  Tarbasilt_sn>o&n,n
u      l| l            ^ 
fl/usr/local/clang/include/absl/base/nullability.ha:g241): 22{:
       | note:                ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                        In file included from  s2/s2furthest_edge_query.cc : 16 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 33 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 41c:
oIn file included from n../src/s2/s2cell_union.hs:t29 :
cIn file included from h/usr/local/clang/include/absl/flags/flag.ha:r42*:
 In file included from a/usr/local/clang/include/absl/flags/internal/flag.hb:s30l:
_/usr/local/clang/include/absl/base/call_once.hn:o200n:n40u:l lwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                 ^
  200/usr/local/clang/include/absl/base/nullability.h | :v241o:22i:d  note: Lexpanded from macro 'absl_nonnull'o
wL  e241v | e#ldCeaflilnOen caeb(salb_snlo:n:nounlcle __fNloangn*u lalb
s      l| _                     ^n
onnull flag, Callable&In file included from &s2/s2latlng_rect_bounder.cc :f18n:
,In file included from 
../src/s2/s2latlng_rect_bounder.h      :| 21                                       ^:

In file included from ../src/s2/s2latlng.h:31/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/r2.h::2222::
 In file included from ../src/s2/util/math/vector.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_295n:o20n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o295n | ncuolnls
t       | s                     ^i
gned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL consIn file included from ts2/s2lax_loop_shape.cc :c18h:
aIn file included from r../src/s2/s2lax_loop_shape.h*: 41a:
bIn file included from s../src/s2/s2loop.hl:_34n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u44l:
lIn file included from  ../src/s2/s2pointutil.hM:a27k:
eC../src/s2/util/math/matrix3x3.hh:e276c:k5O:p Swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
ing(
        276|  |                                            ^ 
   /usr/local/clang/include/absl/base/nullability.hS:2241_:C22H:E Cnote: Kexpanded from macro 'absl_nonnull'_
NE  (241d | e#td,e fViTnyep ea(b0s)l)_ n<o<n n"u lCla n_'Nto ninnuvlelr
s      e| .                     ^ 
DeterminantIn file included from  s2/s2latlng_rect_bounder.cc=: 180:
.In file included from "../src/s2/s2latlng_rect_bounder.h;:
21      :
| In file included from     ^../src/s2/s2latlng.h
:31:
In file included from ../src/s2/r2.h../src/s2/base/logging.h::2237:
:In file included from 21../src/s2/util/math/vector.h:: 36:
note: In file included from expanded from macro 'S2_CHECK_NE'../src/s2/base/logging.h
:21:
   In file included from 37/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.hS:2429_:C31H:E Cwarning: Ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
NE   C429H | E C K _ NTE1
       v| 1                    ^,
 T2 v2, /usr/local/clang/include/absl/log/check.hc:o120n:s3t:  cnote: hexpanded from macro 'CHECK_NE'a
r* abs  l120_ | n o nAnBuSlLl_ LeOxGp_rItNeTxEtR)N AALB_SCLH_EACTKT_RNIEB_UITMEP_LN(O(IvNaLlI1N)E,; 
#      v| a                              ^l
1,/usr/local/clang/include/absl/base/nullability.h :(241v:a22l:2 )note: ,expanded from macro 'absl_nonnull' 
#v  a241l | 2#)d
e      f| i  ^n
e /usr/local/clang/include/absl/log/internal/check_impl.ha:b51s:l3_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'n
ull    51_ | N o nAnBuSlLl_
L      O| G                     ^_
INTERNAL_CHECK_OP(Check_NE, !=,In file included from  s2/s2latlng_rect_bounder.ccv:a18l:
1In file included from ,../src/s2/s2latlng_rect_bounder.h :v21a:
lIn file included from 1../src/s2/s2latlng.h_:t31e:
xIn file included from t../src/s2/r2.h,: 22v:
aIn file included from l../src/s2/util/math/vector.h2:,36 :
vIn file included from a../src/s2/base/logging.hl:221_:
tIn file included from e/usr/local/clang/include/absl/log/check.hx:t37):

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :  ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13/usr/local/clang/include/absl/log/internal/check_op.h:: 68:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'  
432 | co   n68s | t   cwhhairl*e  a(bcsoln_snto ncnhualrl*  MaabkselC_hneuclklOapbSlter ianbgs(lT_1l ovg1_,i nTt2e rvn2a,l
_      c| h            ^e
ck/usr/local/clang/include/absl/base/nullability.h_:o241p:_22r:e snote: uexpanded from macro 'absl_nonnull'l
t    241  |  # d e f i n e  \a
b      s| l                     ^_
nonnull _Non/usr/local/clang/include/absl/base/nullability.hn:u257l:l23
:       | note:                      ^expanded from macro 'absl_nullable'

  257 | #definIn file included from es2/s2latlng_rect_bounder.cc :a18b:
sIn file included from l../src/s2/s2latlng_rect_bounder.h_:n21u:
lIn file included from l../src/s2/s2latlng.ha:b31l:
eIn file included from  ../src/s2/r2.h_:N22u:
lIn file included from l../src/s2/util/math/vector.ha:b36l:
eIn file included from 
../src/s2/base/logging.h      :| 21                      ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* abIn file included from ss2/s2lax_loop_shape.ccl:_18n:
oIn file included from n../src/s2/s2lax_loop_shape.hn:u41l:
lIn file included from  ../src/s2/s2loop.he:x34p:
rIn file included from t../src/s2/mutable_s2shape_index.he:x44t:
)In file included from  ../src/s2/s2pointutil.h{:
27      :
| ../src/s2/util/math/matrix3x3.h                                                       ^:
276:5/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
37:21  :241  | note: #expanded from macro 'S2_CHECK_NE'd
efi   n37e |  #adbesfli_nneo nSn2u_lClH E_CNKo_nNnEu lClH
E      C| K                     ^_
NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_texIn file included from ts2/s2latlng_rect_bounder.cc):
18      :
| In file included from   ^../src/s2/s2latlng_rect_bounder.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2latlng.h75::3161:
:In file included from  ../src/s2/r2.h:note: 22expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP':

In file included from ../src/s2/util/math/vector.h:36:
   In file included from 75../src/s2/base/logging.h | : 21 :
AIn file included from B/usr/local/clang/include/absl/log/check.hS:L37_:
LIn file included from O/usr/local/clang/include/absl/log/internal/check_impl.hG:_21I:
N/usr/local/clang/include/absl/log/internal/check_op.hT:E451R:N1A:L _warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]H
ECK(  :451: | aAbBsSlL:_:LiOmGp_lIiNcTiEtR_NcAaLs_tD<EcFoInNsEt_ McAhKaEr_*C HaEbCsKl__OnPo_nSnTuRlIlN>G(_ E X T E R\N
(      b| o                                                            ^o
l)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22^:
 note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
449:31  :241  | note: #expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'd
efi  n449e |   a besxlt_enronn ntuelmlp l_aNtoen ncuolnls
t       | c                     ^h
ar* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:36537 warning:
sIn file included from  generated/usr/local/clang/include/absl/log/internal/check_impl.h.
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull In file included from Ms2/s2loop.cca:k18e:
CIn file included from h../src/s2/s2loop.he:c32k:
OIn file included from p../src/s2/base/logging.hS:t21r:
iIn file included from n/usr/local/clang/include/absl/log/check.hg:(37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h\:
21      :
| In file included from                               ^/usr/local/clang/include/absl/log/internal/check_op.h
:41/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/strip.h::2226::
 In file included from /usr/local/clang/include/absl/log/internal/log_message.hnote: :expanded from macro 'absl_nonnull'53
:
  /usr/local/clang/include/absl/types/source_location.h241: | 113#:d19e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 absl  _113n | o n n u l l  c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull file_nIn file included from as2/s2latlng_rect_bounder.ccm:e18 :
=In file included from  ../src/s2/s2latlng_rect_bounder.h_:_21b:
uIn file included from i../src/s2/s2latlng.hl:t31i:
nIn file included from _../src/s2/r2.hF:I22L:
EIn file included from (../src/s2/util/math/vector.h):)36 :
{In file included from 
../src/s2/base/logging.h      :| 21                  ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:/usr/local/clang/include/absl/log/internal/check_op.h :note: 458expanded from macro 'absl_nonnull':
1:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
d/usr/local/clang/include/absl/log/internal/check_op.he:f450i:n25e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_  n450o | n n u l l   _xN,o nxn,u lclo
n      s| t                     ^ 
char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2loop.ccl:_18n:
oIn file included from n../src/s2/s2loop.hn:u32l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constIn file included from es2/s2latlng_rect_bounder.ccx:p18r:
 In file included from c../src/s2/s2latlng_rect_bounder.ho:n21s:
tIn file included from  ../src/s2/s2latlng.hc:h31a:
rIn file included from *../src/s2/r2.h :a22b:
sIn file included from l../src/s2/util/math/vector.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from f/usr/local/clang/include/absl/log/check.hi:l37e:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ha:m21e:
(/usr/local/clang/include/absl/log/internal/check_op.h): 459c:o1n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
oexc  e459p | tA B{S
L      _| L                        ^O
G_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
DE  F241I | N#Ed_eMfAiKnEe_ CaHbEsClK__nOoPn_nSuTlRlI N_GN_oEnXnTuElRlN
(      c| o                     ^n
st absl::string_In file included from vs2/s2loop.cci:e18w:
&In file included from )../src/s2/s2loop.h;:
32      :
| In file included from ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/check.h449::3731:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41  :
449In file included from  | /usr/local/clang/include/absl/log/internal/strip.h : 26e:
xIn file included from t/usr/local/clang/include/absl/log/internal/log_message.he:r53n:
 /usr/local/clang/include/absl/types/source_location.ht:e142m:p25l:a twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t142  | c h acro*n satbesxlp_rn ocnonnusltl  cMhaakre*C haebcsklO_pnSotnrniunlgl(  f u n\c
t      i| o                              ^n
_n/usr/local/clang/include/absl/base/nullability.ha:m241e:(22):  cnote: oexpanded from macro 'absl_nonnull'n
st   241n | o#edxecfeipnte  {a
b      s| l                        ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | In file included from l#s2/s2hausdorff_distance_query.cc
d:      e16| f:
                     ^iIn file included from 
n../src/s2/s2hausdorff_distance_query.he: 23a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from nIn file included from ../src/s2/s2point.hns2/s2latlng_rect_bounder.cc:u:27l18l:
:
 In file included from _In file included from ../src/s2/s2coder.hN../src/s2/s2latlng_rect_bounder.h:o:23n21:
n:
In file included from uIn file included from /usr/local/clang/include/absl/status/status.hl../src/s2/s2latlng.h:l:67
31:
      :
| /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from                      ^:../src/s2/r2.h
119::2214:
:In file included from  ../src/s2/util/math/vector.h:warning: 36:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
In file included from   /usr/local/clang/include/absl/log/check.h119: | 37 :
 In file included from S/usr/local/clang/include/absl/log/internal/check_impl.ht:a21t:
In file included from u/usr/local/clang/include/absl/log/internal/check_op.hs2/s2loop.ccs:R:459e18:p:
1*In file included from : ../src/s2/s2loop.h a:warning: b32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:

lIn file included from /usr/local/clang/include/absl/log/internal/check_op.h_../src/s2/base/logging.h:n:450o21:n:
25nIn file included from /usr/local/clang/include/absl/log/check.h:u: l37note: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
 
In file included from C/usr/local/clang/include/absl/log/internal/check_impl.h  l:450o21 | n :
e In file included from ( /usr/local/clang/include/absl/log/internal/check_op.h
 :       41|               ^x:

,In file included from  /usr/local/clang/include/absl/log/internal/strip.hx/usr/local/clang/include/absl/base/nullability.h,:: 26241c:
:oIn file included from 22n/usr/local/clang/include/absl/log/internal/log_message.h:s: t53note:  expanded from macro 'absl_nonnull':
c
h/usr/local/clang/include/absl/types/source_location.ha  r:241*150 |  #:adb40esf:li_ nnewarning: o ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]an
busll  l_)150n
o |       n |  n                        ^u 
l l /usr/local/clang/include/absl/base/nullability.h  :_ 241N :o 22n :n  u note: lexpanded from macro 'absl_nonnull' l
 
          241|   |                      ^# 
d e f i n e   a b sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l filIn file included from es2/s2hausdorff_distance_query.cc_:n16a:
mIn file included from e../src/s2/s2hausdorff_distance_query.h):
23      :
| In file included from                                        ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241In file included from ::s2/s2latlng_rect_bounder.cc2722::
:18In file included from  :
../src/s2/s2coder.hnote: In file included from :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#/usr/local/clang/include/absl/status/internal/status_internal.hd../src/s2/s2latlng_rect_bounder.h:e:125f21:i:
14nIn file included from :e../src/s2/s2latlng.h  warning: :atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31b
:
sIn file included from l  ../src/s2/r2.h_125:n | 22 o:
 nIn file included from Sn../src/s2/util/math/vector.htu:al36tl:
u In file included from s_../src/s2/base/logging.hRN:eo21pn:
*nIn file included from  u/usr/local/clang/include/absl/log/check.hal:bl37s
:
l      In file included from _| /usr/local/clang/include/absl/log/internal/check_impl.hn                     ^:o
21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l460l: 1C:l owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
AndUn  r460e | fA(B
S      L| _             ^L
OG/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'In file included from L
_s2/s2loop.ccD  :E241F18 | I#:
NdIn file included from Ee_../src/s2/s2loop.hfMi:AnK32eE :
_aCIn file included from bHs../src/s2/base/logging.hElC:_Kn21_oO:
nPnIn file included from _u/usr/local/clang/include/absl/log/check.hSlT:lR 37I_N:
NGoIn file included from _n/usr/local/clang/include/absl/log/internal/check_impl.hEnX:uTl21ElR:

NIn file included from       (/usr/local/clang/include/absl/log/internal/check_op.h| c                     ^:o
n41s:
tIn file included from  /usr/local/clang/include/absl/log/internal/strip.hc:h26a:
rIn file included from */usr/local/clang/include/absl/log/internal/log_message.h :a53b:
s/usr/local/clang/include/absl/types/source_location.hl:In file included from _165s2/s2hausdorff_distance_query.ccn::o1516n::
n In file included from uwarning: ../src/s2/s2hausdorff_distance_query.hl:ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23)
:
;In file included from 
../src/s2/s1angle.h        :165| 28^ | :

 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.hc::o44927n::
s31tIn file included from : ../src/s2/s2coder.h c:note: h23expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a:

rIn file included from */usr/local/clang/include/absl/status/status.h   :a44967b | :
s /usr/local/clang/include/absl/status/internal/status_internal.h l:e_128xn:to14en:rn nwarning: u type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ltl
 efmi  pl128le | a_ t neS atcamotenu_sst R =ec ph"*a "ra;*b 
sla_nobnsnlu_lnlo nCnluolnle AMnadkUenCrheefc(k)O pcSotnrsitn;g
(       |               ^ 
\
      | /usr/local/clang/include/absl/base/nullability.h                              ^:
241:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241note:  | expanded from macro 'absl_nonnull'#
def  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_l
      | N                     ^o
nnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAK/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2metrics.cc -o s2/s2metrics.o
E_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:41:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2furthest_edge_query.cc:16:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:41:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2loop.cc::25718::
23In file included from :../src/s2/s2loop.h :32note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/logging.h:21  :
257In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs:l41_:
nIn file included from u/usr/local/clang/include/absl/log/internal/strip.hl:l26a:
b/usr/local/clang/include/absl/log/internal/log_message.hl:e119 :_41N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble
        119|  |                       ^ 
 LogMeIn file included from ss2/s2lax_polygon_shape.ccs:a18g:
eIn file included from &../src/s2/s2lax_polygon_shape.h :T31o:
SIn file included from i../src/s2/encoded_s2point_vector.hn:k29A:
lIn file included from s../src/s2/s2coder.ho:(23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl::67::
LIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hg:S29i:
In file included from /usr/local/clang/include/absl/strings/cord.hn:k94*:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o489n:n45u:l lwarning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s
ink  )489; | 
        |                                          ^ 
  /usr/local/clang/include/absl/base/nullability.hv:o241i:d22 :( *note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  ianbvsalr_inaonntn)u(lvlo i_dN*o nanbuslll_
n      u| l                     ^l
ability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34:In file included from  s2/s2loop.cc:note: 18expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/s2loop.h:32  :
289In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41a:
bIn file included from /usr/local/clang/include/absl/log/internal/strip.hi:l26i:
t/usr/local/clang/include/absl/log/internal/log_message.hy:_121u:n41k:n owarning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
 _N  u121l | l _ uLnosgpMeecsisfaigeed& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:In file included from 34s2/s2loop.cc:
:In file included from 18/usr/local/clang/include/absl/log/log.h:
:In file included from 209../src/s2/s2loop.h:
:In file included from 32/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 22../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 53/usr/local/clang/include/absl/log/check.h:
:37:
/usr/local/clang/include/absl/types/source_location.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h113::2119:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h  :113190 | : 42 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t190  | c h aLro*g Maebsssla_gneo&n nouplelr aftiolre<_<n(asmted :=: o_s_tbrueialmt&i n(_*FaIbLE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf imn)e( satbds:l:_onsotnrneualml&  _oNso)n)n;u
l      l| 
                                         ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2lax_polyline_shape.cc      :| 18                     ^:

In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   conIn file included from ss2/s2loop.cct:e18x:
pIn file included from r../src/s2/s2loop.h :c32o:
nIn file included from s../src/s2/base/logging.ht: 21c:
hIn file included from a/usr/local/clang/include/absl/log/check.hr:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.h :f26i:
l/usr/local/clang/include/absl/log/internal/log_message.he:_191n:a43m:e (warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t191  | n o eLxocgeMpets s{
      |                         ^a
ge/usr/local/clang/include/absl/base/nullability.h&: 241o:p22e:r anote: texpanded from macro 'absl_nonnull'o
r<  <241( | s#tdde:f:iinoes _abbassle_&n o(n*naublsll __nNoonnnnuullll 
m      | )                     ^(
std::ios_base& In file included from os2/s2lax_polyline_shape.ccs:)18):
In file included from ;../src/s2/s2lax_polyline_shape.h:
27      :
| In file included from                                           ^../src/s2/util/coding/coder.h
:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/casts.h::2234::
 In file included from /usr/local/clang/include/absl/log/log.hnote: :expanded from macro 'absl_nonnull'209
:
In file included from   /usr/local/clang/include/absl/log/internal/log_impl.h241: | 22:
#In file included from d/usr/local/clang/include/absl/log/internal/log_message.he:f53i:
n/usr/local/clang/include/absl/types/source_location.he:142 :a25b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u142l | l   _cNoonnsntuelxlp
r       | c                     ^o
nst char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnu
ll      
37|       :
|                                  ^In file included from                      ^
/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     In file included from In file included from cs2/s2lax_polyline_shape.ccs2/s2lax_polygon_shape.cco::n1818s:
:
tIn file included from In file included from  ../src/s2/s2lax_polyline_shape.h../src/s2/s2lax_polygon_shape.hu::n2731s:
:
iIn file included from In file included from g../src/s2/util/coding/coder.h../src/s2/encoded_s2point_vector.hn::e3629d:
:
 In file included from In file included from c../src/s2/base/casts.h../src/s2/s2coder.hh::a3423r:
:
*In file included from In file included from  /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/status/status.ha::b20967s:
:
lIn file included from In file included from _/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/status/internal/status_internal.hn::o2229n:
:
nIn file included from In file included from u/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/strings/cord.hl::l5394):
:
;/usr/local/clang/include/absl/types/source_location.hIn file included from 
:/usr/local/clang/include/absl/strings/internal/cordz_info.h      150:| :                         ^3140
:
:/usr/local/clang/include/absl/synchronization/mutex.h :/usr/local/clang/include/absl/base/nullability.h490warning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]24113
::22 :   warning: 150type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]note:  | 
expanded from macro 'absl_nonnull' 
    490     | 241     |   # d  e  f v io n i ed  * a  bas bls _ln _on n un lul l a lb i_clNoiotnyn_unuslntl kc
hna      ro*| w                      ^an
b salr_gn)o;n
n      u| l            ^l
 fiIn file included from /usr/local/clang/include/absl/base/nullability.hls2/s2latlng_rect_bounder.cc:e:289_18:n:
34aIn file included from :m../src/s2/s2latlng_rect_bounder.h e:)note: 21
expanded from macro 'absl_nullability_unknown':
      
In file included from | ../src/s2/s2latlng.h                                       ^  :
28931 | :
/usr/local/clang/include/absl/base/nullability.h#In file included from :d../src/s2/r2.he241:f:22i22:
n:In file included from e ../src/s2/util/math/vector.h note: :aexpanded from macro 'absl_nonnull'36b
:
sIn file included from   l../src/s2/base/logging.h_241:n | 21#u:
ldIn file included from le/usr/local/clang/include/absl/log/check.hfa:bi37in:
leIn file included from i /usr/local/clang/include/absl/log/internal/check_impl.hta:by21_s:
lu/usr/local/clang/include/absl/log/internal/check_op.hn_:nk464no:on26nw:nu  lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lN
u l/usr/local/clang/include/absl/base/nullability.hl_:N_o241nu:nn22su:pl le
cnote:       iexpanded from macro 'absl_nonnull'| f
i                     ^  e
241d | 
#      d| e                                 ^f
ine absl_nonnull _NonnullIn file included from 
s2/s2lax_polygon_shape.cc      :| 18                     ^:

In file included from In file included from s2/s2lax_polyline_shape.cc../src/s2/s2lax_polygon_shape.h::1831In file included from :
:
s2/s2latlng_rect_bounder.ccIn file included from In file included from :../src/s2/s2lax_polyline_shape.h../src/s2/encoded_s2point_vector.h18:::
2729In file included from :
:
../src/s2/s2latlng_rect_bounder.hIn file included from In file included from :../src/s2/util/coding/coder.h../src/s2/s2coder.h21:::
3623In file included from :
:
../src/s2/s2latlng.hIn file included from In file included from :../src/s2/base/casts.h/usr/local/clang/include/absl/status/status.h31:::
3467In file included from :
:
../src/s2/r2.hIn file included from In file included from :/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/status/internal/status_internal.h22:::
20929In file included from :
:
../src/s2/util/math/vector.hIn file included from In file included from :/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/strings/cord.h36:::
2294In file included from :
:
../src/s2/base/logging.hIn file included from In file included from :/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/strings/internal/cordz_info.h21:::
3153In file included from :
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/types/source_location.h:::49937165::
:35In file included from 15:/usr/local/clang/include/absl/log/internal/check_impl.h: : warning: 21warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h

:463:  1  499:165 |   |   warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]vc
ooind   s463Et | nA aBcbSlhLe_aDLreOb*Gu _gaILbNoTsgE(lR_cnNooAnnLns_tuDl lEcF hIafNriE*l_e _aMnbAsaKmlE_e__nCu Hl=El Ca"Kb_"lOe;P _
nSa      Tm| Re              ^I)
N;G/usr/local/clang/include/absl/base/nullability.h
_:E      241X| :T                                  ^E22
R:N /usr/local/clang/include/absl/base/nullability.h(note: :expanded from macro 'absl_nonnull'
257
      :|   23^241:
 |  #/usr/local/clang/include/absl/log/internal/check_op.hnote: d:eexpanded from macro 'absl_nullable'450f
:i25n  :e257   | note: #aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'bdse
lf_i  nn450oe |  n an b us ll _l n x_u,lN lxoa,bn lceno un_slNtlu l
clh      aab| rl                     ^*e
 
a      b| s                      ^l
_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2latlng_rect_bounder.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2latlng_rect_bounder.h31::
21:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2latlng.h549::3140:
:In file included from  ../src/s2/r2.h:warning: 22:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/util/math/vector.h:  36549:
 | In file included from  ../src/s2/base/logging.h :s21t:
aIn file included from t/usr/local/clang/include/absl/log/check.hi:c37 :
vIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hi:d21 :
I/usr/local/clang/include/absl/log/internal/check_op.hn:c465r:e1m:e nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
ynch  S465e | mA(BMSuLt_eLxO*G _aIbNsTlE_RnNoAnLn_uDlElF ImNuE,_
M      A| K                                       ^E
_C/usr/local/clang/include/absl/base/nullability.hH:E241C:K22_:O Pnote: _expanded from macro 'absl_nonnull'S
TR  I241N | G#_dEeXfTiEnReN (acbosnls_tn ovnonid*u lalb s_lN_onnonnunlull
l      )| ;                     ^

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
s2/s2lax_polygon_shape.cc:18:
In file included from   ../src/s2/s2lax_polygon_shape.h449: | 31 :
 In file included from e../src/s2/encoded_s2point_vector.hx:t29e:
rIn file included from n../src/s2/s2coder.h :t23e:
mIn file included from p/usr/local/clang/include/absl/status/status.hl:a67t:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h :c94h:
aIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.h*: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l550_:n64o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
In file included from ls2/s2lax_polyline_shape.cc   :550M18 | a :
k eIn file included from  C../src/s2/s2lax_polyline_shape.h h :e 27c :
k In file included from O p../src/s2/util/coding/coder.h S: t 36r i:
 n In file included from g (../src/s2/base/casts.h  :  34  :
 \ In file included from 
 /usr/local/clang/include/absl/log/log.h       : |  209                              ^ :

 In file included from  /usr/local/clang/include/absl/base/nullability.h /usr/local/clang/include/absl/log/internal/log_impl.h: :241 22: :
22b/usr/local/clang/include/absl/log/internal/log_message.h:a: s71note: eexpanded from macro 'absl_nonnull':_
i26n  t:241e  | rwarning: #ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dae
lf:i:   nP71ee |   r aTLbhsorlge_aMnedoSsnynsnaucglhle* ( c_oanNbosstnl n_ucnhlolan
nr      u*| l                     ^ l
 awb)s;lIn file included from 
_s2/s2latlng_rect_bounder.cc      n:o| n                                                               ^18n
u:
l/usr/local/clang/include/absl/base/nullability.hIn file included from l: ../src/s2/s2latlng_rect_bounder.h241f::i2122l:
:eIn file included from  ,../src/s2/s2latlng.hnote:  :expanded from macro 'absl_nonnull'i31n
:
tIn file included from    ../src/s2/r2.h241l: | i22#n:
deIn file included from e,../src/s2/util/math/vector.hf
:i      36n| :
                         ^eIn file included from 
 ../src/s2/base/logging.ha:b21s/usr/local/clang/include/absl/base/nullability.h:
l:In file included from _241/usr/local/clang/include/absl/log/check.hn::o2237n::
n In file included from unote: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull'l:l
21 :
_/usr/local/clang/include/absl/log/internal/check_op.h  N:o241465n | :#n66ud:le lfwarning: 
itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n      
e|                       ^  a
b465s | lA_BnSoLn_nLuOlGl_ I_NNToEnIn file included from s2/s2lax_polygon_shape.cc:n18u:
lIn file included from l../src/s2/s2lax_polygon_shape.h
:      31| :
                     ^In file included from 
../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecremenIn file included from ts2/s2lax_polyline_shape.ccS:y18n:
cIn file included from h../src/s2/s2lax_polyline_shape.hS:e27m:
(In file included from M../src/s2/util/coding/coder.hu:t36e:
xIn file included from *../src/s2/base/casts.h :a34b:
sIn file included from l/usr/local/clang/include/absl/log/log.h_:n209o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hu:l22l:
 /usr/local/clang/include/absl/log/internal/log_message.hm:u78,:
26      :|                                         ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:   2278: |   note:  expanded from macro 'absl_nonnull'L
og  M241e | s#sdaegfei(nceo nasbts lc_hnaorn*n ualbls l__Nnoonnnnuullll
       f| i                     ^l
e, int line,In file included from 
s2/s2lax_polygon_shape.cc      :| 18                         ^:

In file included from ../src/s2/s2lax_polygon_shape.h:/usr/local/clang/include/absl/base/nullability.h31::
241In file included from :../src/s2/encoded_s2point_vector.h22::29 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l552 :_64N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 552                     ^ | 
                                baIn file included from sIn file included from s2/s2lax_polyline_shape.cces2/s2loop.cc_::i1818n:
:
tIn file included from In file included from e../src/s2/s2lax_polyline_shape.h../src/s2/s2loop.hr::n2732a:
:
lIn file included from In file included from :../src/s2/util/coding/coder.h../src/s2/base/logging.h::P:e3621r:
:
TIn file included from In file included from h../src/s2/base/casts.h/usr/local/clang/include/absl/log/check.hr::e3437a:
d:
SIn file included from In file included from y/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/log/internal/check_impl.hn::c20921h:
:
*In file included from In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/log/internal/check_op.ha::b2241s:
:
/usr/local/clang/include/absl/log/internal/log_message.hlIn file included from :_/usr/local/clang/include/absl/log/internal/strip.hn80:o:26n26:
n:/usr/local/clang/include/absl/log/internal/log_message.hu :lwarning: 306type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l: 
3w:,    
warning: 80      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | | 
                                                               ^ 
   L/usr/local/clang/include/absl/base/nullability.h306o: | g241 M: e22as:bs sanote: lexpanded from macro 'absl_nonnull'g_
neo  n(241nc | uo#ldlnes fstitn de:c :ahubansrilq_*une o_napntburls<llL o__gNnMoeonsnnsnualuglle
lD       af| t                     ^ia
>l ed,a tian_t; 
l      i| n  ^e
,In file included from 
/usr/local/clang/include/absl/base/nullability.hs2/s2lax_polygon_shape.cc      ::| 24118                         ^::

22In file included from :../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/base/nullability.h ::note: 31expanded from macro 'absl_nonnull'241:

:In file included from 22  ../src/s2/encoded_s2point_vector.h:241:  | 29note: #:
expanded from macro 'absl_nonnull'dIn file included from e
../src/s2/s2coder.hf:i  23n241:
e | In file included from  #/usr/local/clang/include/absl/status/status.had:be67fs:
ilIn file included from _n/usr/local/clang/include/absl/status/internal/status_internal.hne:o 29na:
nbIn file included from us/usr/local/clang/include/absl/strings/cord.hll:l_94 n:
_oIn file included from Nn/usr/local/clang/include/absl/strings/internal/cordz_info.hon:nu31nl:
ul/usr/local/clang/include/absl/synchronization/mutex.hl :_lN556
o:      n38| n:u                     ^ l
lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  556 |   void LockSlowLoop(SyncIn file included from hs2/s2lax_polyline_shape.ccW:a18i:
tIn file included from P../src/s2/s2lax_polyline_shape.ha:r27a:
mIn file included from s../src/s2/util/coding/coder.h*: 36a:
bIn file included from s../src/s2/base/casts.hl:_34n:
oIn file included from n/usr/local/clang/include/absl/log/log.hn:u209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22l:
l/usr/local/clang/include/absl/log/internal/log_message.h :w82a:i26t:p ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nt    f82l | a g sL)o;g
M      e| s                                     ^s
ag/usr/local/clang/include/absl/base/nullability.he:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_ nfoinlneu,l li n_tN olninnuel,l

            | |                          ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2lax_polygon_shape.ccn:o18n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l31 :
_In file included from N../src/s2/encoded_s2point_vector.ho:n29:
In file included from ../src/s2/s2coder.h:23:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2lax_polyline_shape.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2lax_polyline_shape.h31::
27/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 559../src/s2/util/coding/coder.h::4636::
 In file included from warning: ../src/s2/base/casts.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
34:
In file included from /usr/local/clang/include/absl/log/log.h  :559209 | :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 119 : 41 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      119  |      L o g M e scsoangset&  CToonSdiintkiAolns*o (aabbssll_:n:uLlolgaSbilnek *c oanbds,l
_      n| o                                             ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :s23:i nnote: kexpanded from macro 'absl_nullable')
;
        257|  |                                         ^#
def/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef i_nNeu lalbasbll_en
o      n| n                      ^u
ll _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29In file included from :
s2/s2lax_polyline_shape.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2lax_polyline_shape.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h36::
29In file included from :
../src/s2/base/casts.hIn file included from :/usr/local/clang/include/absl/strings/cord.h34::
94In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h209::
31In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/synchronization/mutex.h::22562:
:/usr/local/clang/include/absl/log/internal/log_message.h23::121 :41warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |    121  | v o iLdo gLMoecsksSalgoew&( MTuoHSoiwn kaObnslly_(naobnsnlu:l:lL ohgoSwi,n kc*o nasbts lC_onnodnintuiloln *s ianbks)l;_
n      u| l                                        ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241 :c22o:n dnote: ,expanded from macro 'absl_nonnull'

      |                         ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const ConditioIn file included from ns2/s2lax_polyline_shape.cc*: 18a:
bIn file included from s../src/s2/s2lax_polyline_shape.hl:_27n:
uIn file included from l../src/s2/util/coding/coder.hl:a36b:
lIn file included from e../src/s2/base/casts.h :c34o:
nIn file included from d/usr/local/clang/include/absl/log/log.h,:
209      :
| In file included from                                                          ^/usr/local/clang/include/absl/log/internal/log_impl.h
:22/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/log_message.h257::15823::32 :note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
257 | #  d158e | f i nLeo gaMbessls_anguel&l aobpleer a_tNoullRable
      |                       ^
NAL_DEFINE_MAKE_CHECK_OP_STRING_In file included from Es2/s2lax_polygon_shape.ccX:T18E:
RIn file included from N../src/s2/s2lax_polygon_shape.h(:c31o:
nIn file included from s../src/s2/encoded_s2point_vector.ht: 29v:
oIn file included from i../src/s2/s2coder.hd:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h):;94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                                                 ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
565 |     v241o | i#dd eUfnilnoec kaSblsolw_(nSoynnncuhlWla i_tNPoanrnaumlsl*
       a| b                     ^s
l_nullable waitp) ABSIn file included from Ls2/s2latlng_rect_bounder.cc_:A18T:
TIn file included from R../src/s2/s2latlng_rect_bounder.hI:B21U:
TIn file included from E../src/s2/s2latlng.h_:C31O:
LIn file included from D../src/s2/r2.h;:
22      :
| In file included from                                    ^../src/s2/util/math/vector.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h257::2123:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nullable'37
:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h257: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f465i:n66e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
_N  u241l | l#adbelfei
n      e|                        ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:In file included from 21s2/s2lax_polygon_shape.cc:
:/usr/local/clang/include/absl/log/internal/check_op.h18::
465In file included from :../src/s2/s2lax_polygon_shape.h1::31 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/encoded_s2point_vector.h
:29:
In file included from ../src/s2/s2coder.h  :46523 | :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
LIn file included from O/usr/local/clang/include/absl/status/internal/status_internal.hG:_29I:
NIn file included from T/usr/local/clang/include/absl/strings/cord.hE:R94N:
AIn file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:D31E:
F/usr/local/clang/include/absl/synchronization/mutex.hI:N576E:_49M:A Kwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
CHE  C576K |  _ OvPo_iSdT RTIrNyGR_eEmXoTvEeR(Nb(acsoen_sitn tveorinda*l :a:bPselr_TnhornenaudlSly)n;c
h      *|  ^a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_450n:o25n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
 s  )450; | 
        |                                                  ^ 
  /usr/local/clang/include/absl/base/nullability.hx:,241 :x22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsoln_nnuolnln)u
l      l|                          ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull In file included from _s2/s2lax_polygon_shape.ccN:o18n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l31
:
      In file included from | ../src/s2/encoded_s2point_vector.h                     ^:
29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nIn file included from os2/s2latlng_rect_bounder.ccn:n18u:
lIn file included from l../src/s2/s2latlng_rect_bounder.h :s21):
;In file included from 
../src/s2/s2latlng.h      :| 31                                            ^:

In file included from ../src/s2/r2.h:/usr/local/clang/include/absl/base/nullability.h22::
241In file included from :../src/s2/util/math/vector.h22::36 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21  :
241In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s502l:_1n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll   _502N | oAnBnSuLl_lL
O      G| _                     ^I
NTERNAL_CHECK_OP_In file included from Is2/s2lax_polygon_shape.ccM:P18L:
In file included from ../src/s2/s2lax_polygon_shape.h(:C31h:
eIn file included from c../src/s2/encoded_s2point_vector.hk:_29E:
QIn file included from ,../src/s2/s2coder.h :=23=:
)In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/log/internal/check_op.h29::
488In file included from :/usr/local/clang/include/absl/strings/cord.h32::94 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h488: | 580 : 34i:n lwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
e c  o580n | s t ebxapsre _cionntsetr ncahla:r:*P earbTshlr_enaudlSlyanbclhe*  naabmsel#_#nIumlplla(b l e   W a k e u p ( 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257\:
23      :|                                 ^
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:257:  23257: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneu lalbasbll_en u_lNlualbllaeb l_eN
u      l| l                      ^a
ble
      |                       ^In file included from 
s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2latlng_rect_bounder.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2latlng_rect_bounder.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2latlng.h::9431:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/r2.h::3122:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/util/math/vector.h581::3638:
:In file included from  ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h  :58137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.hb:a502s:e1_:i nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rn/usr/local/clang/include/absl/log/internal/check_op.ha:l489:::47P:e rnote: Texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'h
rea  d489S | y n c h *   acbosnls_tn oTn1n&u lvl1 ,w )c;o
n      s| t                                     ^ 
T2/usr/local/clang/include/absl/base/nullability.h&: 241v:222,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsoln_nnuolnln uelxlp r_tNeoxntn)u l{l 
        |                       ^ 
\
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2lax_polygon_shape.cc:l18_:
nIn file included from o../src/s2/s2lax_polygon_shape.hn:n31u:
lIn file included from l../src/s2/encoded_s2point_vector.h :_29N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used foIn file included from rs2/s2loop.cc :C18o:
nIn file included from d../src/s2/s2loop.hV:a32r:
-In file included from >../src/s2/base/logging.hM:u21t:
eIn file included from x/usr/local/clang/include/absl/log/check.h :t37r:
aIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:f21e:
rIn file included from 
/usr/local/clang/include/absl/log/internal/check_op.h      :| 41                   ^:

In file included from /usr/local/clang/include/absl/log/internal/strip.h:/usr/local/clang/include/absl/base/nullability.h26::
241:/usr/local/clang/include/absl/log/internal/log_message.h22::319 :20note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #de  f319i | n e   a bcsoln_sIn file included from ntos2/s2latlng_rect_bounder.cc nw:ncu18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
har_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline In file included from Ls2/s2hausdorff_distance_query.cco:g16M:
eIn file included from s../src/s2/s2hausdorff_distance_query.hs:a23g:
eIn file included from &../src/s2/s1angle.h :L28o:
gIn file included from M../src/s2/s2point.he:s27s:
aIn file included from g../src/s2/s2coder.he::23::
oIn file included from p/usr/local/clang/include/absl/status/status.he:r67a:
to/usr/local/clang/include/absl/status/internal/status_internal.hr:<149<:(13w:c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
_t*   a149b | sclo_nnsutl lcahbalre*  va)b s{l
_      n| o                                                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :M23a:k enote: Cexpanded from macro 'absl_nullable'h
ec  k257F | a#idleSftirnien ga(b
s      l| _            ^n
ull/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :_ Nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e#
d      e| f                      ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2loop.ccl:l18 :
_In file included from N../src/s2/s2loop.ho:n32n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.hs2/s2hausdorff_distance_query.cc::2616:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2hausdorff_distance_query.h::34023:
In file included from :../src/s2/s1angle.h46::28 :
In file included from warning: ../src/s2/s2point.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23  :
340In file included from  | /usr/local/clang/include/absl/status/status.h : 67f:
r/usr/local/clang/include/absl/status/internal/status_internal.hi:e150n:d58 :v owarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
 Ab  s150l | F o r m actoFnlsuts ha(bSstlr:i:nSgtiaftyuSsi*n ka*b salb_snlo_nnnounlnlu lslt astiunsk,, 
c      o| n                                             ^s
t c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ipnree faibxs)l;_
n      o| n                                                         ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from as2/s2latlng_rect_bounder.ccb:l18e:
 In file included from _../src/s2/s2latlng_rect_bounder.hN:u21l:
lIn file included from a../src/s2/s2latlng.hb:l31e:

In file included from       ../src/s2/r2.h| :                      ^22
:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503In file included from :s2/s2max_distance_targets.cc1::In file included from 16s2/s2loop.cc :
:warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
18ll _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from In file included from ../src/s2/s2lax_polygon_shape.hs2/s2hausdorff_distance_query.cc::3116:
:
In file included from In file included from ../src/s2/encoded_s2point_vector.h../src/s2/s2hausdorff_distance_query.h::2923:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6727:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2coder.h::2923:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::94725:
:In file included from 38/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
624:68:   warning: 725 | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
 stat  i624c |   s teaxtpulsi_ciintt eMruntaelx:L:oSctka(tMuustReexp&*  maub sAlB_SnLo_nInNuTlElR NPArLe_pAaTrTeRTIoBMUoTdEi_fCyA(P
T      U| R                                     ^E
D_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull'

      |                                                                      ^~~~241
 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex*In file included from  s2/s2hausdorff_distance_query.cca:b16s:
lIn file included from _../src/s2/s2hausdorff_distance_query.hn:o23n:
nIn file included from u../src/s2/s1angle.hl:l28 :
mIn file included from u../src/s2/s2point.h): 27A:
BIn file included from S../src/s2/s2coder.hL:_23E:
X/usr/local/clang/include/absl/status/status.hC:L732U:S29I:V Ewarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
OCK  _732F | U N CsTtIaOtNi(cm uc)o
n      s| t                            ^ 
std/usr/local/clang/include/absl/base/nullability.h:::241s:t22r:i nnote: gexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bEsmlp_tnyoSntnruilnlg (_)N;o
n      n| u                            ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2lax_polygon_shape.cc      :| 18                     ^:

In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2hausdorff_distance_query.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1631:
:
In file included from ../src/s2/s2hausdorff_distance_query.h/usr/local/clang/include/absl/synchronization/mutex.h::23641:
:In file included from 68../src/s2/s1angle.h:: 28:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:  23641:
 | /usr/local/clang/include/absl/status/status.h : 733e:x29p:l iwarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
t M  u733t | e x Lsotcakt(iMcu tceoxr<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2lax_polyline_shape.cc
:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34   :
39In file included from  | /usr/local/clang/include/absl/log/log.hi:n209l:
iIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.he: 22u:
i/usr/local/clang/include/absl/log/internal/log_message.hn:t1901:642_:t  warning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
alig  n190e | d L oLaodg1M6e(scsoangset&  voopiedr*a taobrs<l<_(nsotndn:u:lols tpr)e a{m
&       | (                                            ^*
absl_nonn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22m: )note: (expanded from macro 'absl_nonnull's
td  :241: | o#sdterfeianme&  aobss)l)_;n
o      n| n                                         ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n: nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessaIn file included from gs2/s2max_distance_targets.cce:&16 :
oIn file included from p../src/s2/s2max_distance_targets.he:r27a:
tIn file included from ../src/s2/s1angle.ho:r28<:
<In file included from (../src/s2/s2point.hs:t24d:
:In file included from :/usr/local/clang/include/absl/hash/hash.hi:o89s:
_In file included from b/usr/local/clang/include/absl/hash/internal/hash.ha:s79e:
&In file included from  /usr/local/clang/include/absl/base/internal/endian.h(:*26a:
b/usr/local/clang/include/absl/base/internal/unaligned_access.hs:l45_:n45o: nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll    m45) | (isntldi:n:ei ousi_nbta3s2e_&t  oUsn)a)l;i
g      n| e                                          ^d
Lo/usr/local/clang/include/absl/base/nullability.ha:d2413:222(:c onote: nexpanded from macro 'absl_nonnull's
t   v241o | i#dd*e faibnsel _anbosnln_unloln npu)l l{ 
_      N| o                                            ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absIn file included from ls2/s2lax_polyline_shape.cc_:n18o:
nIn file included from n../src/s2/s2lax_polyline_shape.hu:l27l:
 In file included from p../src/s2/util/coding/coder.h,: 36u:
iIn file included from n../src/s2/base/casts.ht:1346:
_In file included from t/usr/local/clang/include/absl/log/log.h :v209):
 In file included from {/usr/local/clang/include/absl/log/internal/log_impl.h
:      22| :
                                   ^
/usr/local/clang/include/absl/log/internal/log_message.h:306/usr/local/clang/include/absl/base/nullability.h::3241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241306 |  |  # daebfsiln_en oanbnsull_ln osntndu:l:lu n_iNqounen_upltlr
<      L| o                     ^g
MessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2max_distance_targets.ccl:l16
:
      In file included from | ../src/s2/s2max_distance_targets.h                     ^:
27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull /usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullaIn file included from bs2/s2lax_polyline_shape.ccl:e18 :
_In file included from N../src/s2/s2lax_polyline_shape.hu:l27l:
aIn file included from b../src/s2/util/coding/coder.hl:e36
:
      In file included from | ../src/s2/base/casts.h                      ^:
34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     cIn file included from os2/s2latlng_rect_bounder.ccn:s18t:
 In file included from w../src/s2/s2latlng_rect_bounder.hc:h21a:
rIn file included from _../src/s2/s2latlng.ht:*31 :
aIn file included from b../src/s2/r2.hs:l22_:
nIn file included from u../src/s2/util/math/vector.hl:l36a:
nIn file included from ../src/s2/base/logging.h:21:
:
sIn file included from /usr/local/clang/include/absl/log/check.ht:37 In file included from :
s../src/s2/s2loop.hIn file included from t:/usr/local/clang/include/absl/log/internal/check_impl.hd32:::
21:In file included from :
s../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/check_op.ht::r21503i:
:nIn file included from 1g/usr/local/clang/include/absl/log/check.h::* 37 warning: :
atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from b
/usr/local/clang/include/absl/log/internal/check_impl.hs:l21/usr/local/clang/include/absl/log/internal/check_op.h_:
:nIn file included from 498o/usr/local/clang/include/absl/log/internal/check_op.h:n:35n41:u:
 lIn file included from note: l/usr/local/clang/include/absl/log/internal/strip.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' :
M26o:
v  e/usr/local/clang/include/absl/log/internal/log_message.h498d: | F 400r :o 17 m: S  itnwarning: rttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i 
vn1g,( )i  ;n400
t |         v|  2                            ^ ,
  ccoon/usr/local/clang/include/absl/base/nullability.hsn:ts241 t: v22coh:ai rdnote: **expanded from macro 'absl_nonnull'  
aabb  ss241ll | __#ndnoeunfnliullanlb leee  xcpoarnbssttl&e_x tnvo))n n{; u 
l        l|                   ^_ 
N o n /usr/local/clang/include/absl/base/nullability.hn :u 257l :l 23
 :        |  note:                      ^ expanded from macro 'absl_nullable'
\

      |                                     ^257
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien e_ Naublslla_bnloen
n      u| l                      ^l
 _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2loop.ccf:i18n:
eIn file included from  ../src/s2/s2loop.ha:b32s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hl:
41      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2loop_measures.ccn:u18l:
lIn file included from 
../src/s2/s2loop_measures.h      :| 33                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringIn file included from Vs2/s2loop.cci:e18w:
(In file included from c../src/s2/s2loop.ho:n32s:
tIn file included from  ../src/s2/base/logging.hc:h21a:
rIn file included from */usr/local/clang/include/absl/log/check.hb laeb sclo_nnsutl&l avb)l;e
       p| )                   ^ 
{
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:/usr/local/clang/include/absl/base/nullability.h23::257 :note: 23expanded from macro 'absl_nullable':
 note: expanded from macro 'absl_nullable'  
257 |   #257d | e#fdienfei naeb salb_snlu_lnlualbllaeb l_eN u_lNlualbllaeb
l      e| 
                      ^      
|                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      | :                                  ^
37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.h:note: 41expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/strip.h  :24126 | :
#/usr/local/clang/include/absl/log/internal/log_message.hd:e446f:i43n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_no  n446n | u l lL o_gNMoensnsualgle
Q      u| i                     ^e
tlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char*In file included from  s2/s2lax_polygon_shape.cca:b18s:
lIn file included from _../src/s2/s2lax_polygon_shape.hn:o31n:
nIn file included from u../src/s2/encoded_s2point_vector.hl:l29 :
fIn file included from i../src/s2/s2coder.hl:e23,:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  241/usr/local/clang/include/absl/synchronization/mutex.h | :#710d:e74f:i nwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
absl_  n710o | n n uelxlp l_iNcointn uWlrli
t      e| r                     ^M
utexLock(Mutex& mu ABSL_INTERNIn file included from As2/s2loop.ccL:_18A:
TIn file included from T../src/s2/s2loop.hR:I32B:
UIn file included from T../src/s2/base/logging.hE:_21C:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nIn file included from os2/s2lax_polyline_shape.ccn:n18u:
lIn file included from l../src/s2/s2lax_polyline_shape.h :f27In file included from i:
s2/s2latlng_rect_bounder.cclIn file included from :e../src/s2/util/coding/coder.h,18: :
36iIn file included from :
n../src/s2/s2latlng_rect_bounder.hIn file included from t:../src/s2/base/casts.h 21:l:
34iIn file included from :
n../src/s2/s2latlng.hIn file included from e:/usr/local/clang/include/absl/log/log.h,31:
:
209      In file included from :
| ../src/s2/r2.hIn file included from                                      ^:/usr/local/clang/include/absl/log/internal/log_impl.h
22::
/usr/local/clang/include/absl/base/nullability.h22In file included from ::
../src/s2/util/math/vector.h241/usr/local/clang/include/absl/log/internal/log_message.h:::3622340:
::In file included from  46../src/s2/base/logging.hnote: ::expanded from macro 'absl_nonnull' 21
:
warning: In file included from   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.h241
: | 37  #:
340dIn file included from  | e/usr/local/clang/include/absl/log/internal/check_impl.h f: i21fn:
rei /usr/local/clang/include/absl/log/internal/check_op.hea:bn504ds: l1v_:on iowarning: dntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] n
Aublsll F  o_504Nr | oAnBmSnauLtl_FLllO
uG      _s| IhN                     ^(
TSEtRrNiAnLg_In file included from iCs2/s2loop.ccHf:EyC18SKi:
_nIn file included from OkP../src/s2/s2loop.h*_ I:MaPb32Ls(:
CIn file included from hle../src/s2/base/logging.h_c:kn_21LoE:
,In file included from n /usr/local/clang/include/absl/log/check.h<n=:u)37l
l:
       In file included from | s/usr/local/clang/include/absl/log/internal/check_impl.h^i:
n21k:
,In file included from /usr/local/clang/include/absl/log/internal/check_op.h
/usr/local/clang/include/absl/log/internal/check_op.h:      :488| 41:                                             ^:
32
In file included from :/usr/local/clang/include/absl/log/internal/strip.h /usr/local/clang/include/absl/base/nullability.h:note: :26expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'241:

:/usr/local/clang/include/absl/log/internal/log_message.h22::  457 488:note:  | 38 expanded from macro 'absl_nonnull' :i
 n  warning: l241itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n | 
e# dc  eo457nfs | tie xn pe r    ac ob ns sl t _  nc hoa nr *n  ua blsl l  __ nNu lo ln anb lu el  lcn
oa      nm| es                     ^#t
# Icmhpalr(*   a b s l _ n o n n u l l   f a i l u\r
e      _| m                               ^s
g)
      /usr/local/clang/include/absl/base/nullability.h| :                                     ^257
:23:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'absl_nullable':
22:   note: 257expanded from macro 'absl_nonnull' | 
#  d241e | f#idneef ianbes la_bnsull_lnaobnlneu l_lN u_lNloanbnluel
l      
|                             ^| 
                     ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define ab_Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
APsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2loop.cc/usr/local/clang/include/absl/log/check.h::1837:
:
In file included from In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/log/internal/check_impl.h::3221:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/base/logging.h::50421::
1In file included from :/usr/local/clang/include/absl/log/check.h :warning: 37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_op.h::21498:
:35/usr/local/clang/include/absl/log/internal/check_op.h:: 180note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'42
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]498
 |        180  | iAnBtS Lv_1A,T TiRnItB UvT2E,_ PcUoRnEs_tF UcNhCaTrI*O Na bcsoln_snto ncnhualrl*  eaxbpsrlt_enxotn)n u{l l   M a k e C h e c k F a i l S t\r
i      n| g                                  ^(

      | /usr/local/clang/include/absl/base/nullability.h                                         ^:
241:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* abslT_nUoRnEnDu_lBlY (ptrheifsi)x))
;      
|                                                                                ^~~~| 
                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2loop.cc:18:
In file included from   ../src/s2/s2loop.h718: | 32 :
 In file included from e../src/s2/base/logging.hx:p21l:
iIn file included from c/usr/local/clang/include/absl/log/check.hi:t37 :
WIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hi:t21e:
r/usr/local/clang/include/absl/log/internal/check_op.hM:u181t:e58x:L owarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
(Mu  t181e | x *   a bcsoln_snto nanbuslll: :mSut)a
t      u| s                                  ^*
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l s  t241a | t#udse,f icnoen satb sclh_anro*n naublsll __nNoonnnnuullll 
p      r| e                     ^f
ix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2lax_polygon_shape.ccn:u18l:
lIn file included from 
../src/s2/s2lax_polygon_shape.h      :| 31                     ^:

In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2loop.cc:  18722:
 | In file included from  ../src/s2/s2loop.h :e32x:
pIn file included from l../src/s2/base/logging.hi:c21i:
tIn file included from  /usr/local/clang/include/absl/log/check.hW:r37i:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:M21u:
t/usr/local/clang/include/absl/log/internal/check_op.he:x189L:o28c:k (warning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
tex&   189m | ui nAlBiSnLe_ IcNoTnEsRtN AaLb_sAlT:T:RSItBaUtTuEs_*C AaPbTsUlR_EnDo_nBnYu(ltlh iAss)S,t
a      t| u                                                                         ^~~~s
(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #/usr/local/clang/include/absl/synchronization/mutex.hd:e731f:i35n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o731n | n u lelx p_lNiocnintu lWlr
i      t| e                     ^r
MutexLock(Mutex* absl_nonnull mu, const ConditioIn file included from ns2/s2loop.cc&: 18c:
oIn file included from n../src/s2/s2loop.hd:)32
:
      In file included from | ../src/s2/base/logging.h                                  ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
193:21  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e193  | acbosnls_tn oanbnsull:l: S_tNaotnunsu*l la
b      s| l                     ^_
nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2lax_polygon_shape.cce: 18a:
bIn file included from s../src/s2/s2lax_polygon_shape.hl:_31n:
oIn file included from n../src/s2/encoded_s2point_vector.hn:u29l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull fuIn file included from ns2/s2loop.ccc:)18(:
vIn file included from o../src/s2/s2loop.hi:d32*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hi:l21i:
t/usr/local/clang/include/absl/log/internal/check_op.hy:_209u:n15k:n owarning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
),
        209|  |                    ^ 
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sNle_wnSotnrniunlgl( )_;N
o      n| n              ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2lax_polygon_shape.cc241: | 18#:
dIn file included from e../src/s2/s2lax_polygon_shape.hf:i31n:
eIn file included from  ../src/s2/encoded_s2point_vector.ha:b29s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
94      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknowIn file included from ns2/s2max_distance_targets.cc):,16
:
      In file included from | ../src/s2/s2max_distance_targets.h                                            ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::28928::
34In file included from :../src/s2/s2point.h :note: 24expanded from macro 'absl_nullability_unknown':

In file included from /usr/local/clang/include/absl/hash/hash.h:  89289:
 | In file included from #/usr/local/clang/include/absl/hash/internal/hash.hd:e79f:
in/usr/local/clang/include/absl/base/internal/endian.he: 160a:b36s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab  i160l | iitnyl_iunnek nuoiwnnt 1_6N_utl lL_ouands1p6e(cciofnisetd 
v      o| i                                 ^d
* absl_nonnull pIn file included from )s2/s2lax_polygon_shape.cc :{18
:
      In file included from | ../src/s2/s2lax_polygon_shape.h                                   ^:
31:
In file included from ../src/s2/encoded_s2point_vector.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n802n:u19l:l  warning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
onn  u802l | l 
        |                       ^ 
       void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
In file included from   s2/s2max_distance_targets.cc289: | 16#:
dIn file included from e../src/s2/s2max_distance_targets.hf:i27n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:u24l:
lIn file included from a/usr/local/clang/include/absl/hash/hash.hb:i89l:
iIn file included from t/usr/local/clang/include/absl/hash/internal/hash.hy:_79u:
n/usr/local/clang/include/absl/base/internal/endian.hk:n164o:w27n:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll_u  n164s | piencliifniee dv
o      i| d                                 ^ 
Store16(void* absl_nonnulIn file included from ls2/s2lax_polygon_shape.cc :p18,:
 In file included from u../src/s2/s2lax_polygon_shape.hi:n31t:
1In file included from 6../src/s2/encoded_s2point_vector.h_:t29 :
vIn file included from )../src/s2/s2coder.h :{23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                          ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 94note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:  31241:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from s2/s2latlng_rect_bounder.cc../src/s2/util/coding/coder.h::In file included from 1836:
:
In file included from In file included from s2/s2loop.cc../src/s2/s2latlng_rect_bounder.h../src/s2/base/casts.h:::182134:
:
:
In file included from In file included from In file included from ../src/s2/s2loop.h../src/s2/s2latlng.h/usr/local/clang/include/absl/log/log.h:::3231209:
:
:
In file included from In file included from In file included from ../src/s2/base/logging.h../src/s2/r2.h/usr/local/clang/include/absl/log/internal/log_impl.h:::212222:
:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/log_message.h../src/s2/util/math/vector.h:::3742536:
::
In file included from 31In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:../src/s2/base/logging.h: :warning: 2121type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:

In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/check.h::22637::
59In file included from   :/usr/local/clang/include/absl/log/internal/check_impl.h425 : | warning:  21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :

Lo/usr/local/clang/include/absl/log/internal/check_op.hg:M505e:s  s1226a: | gv eowarning: Fitype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]adt
 aMla(kceoCnhsetc   kcO505hpaV | rAa*Bl uSaeLbSs_tLlOr_iGn_nIogNn(nTsutEldlR: :NfoiAsltLer,_eC HianmEt& C loKisn_,e O)c PoAn_BIsMSPtLL( C_vAhoTieTcdR*kI_ LBTa,U b<TsE)l
__      CnO| u^LlD
l;a
b      /usr/local/clang/include/absl/log/internal/check_op.hl| e                              ^: 
p488):;32
/usr/local/clang/include/absl/base/nullability.h:      : | note: 241                                                          ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

22: note: /usr/local/clang/include/absl/base/nullability.h  expanded from macro 'absl_nonnull':488
257 | :   23241 :i | n #lnote: idnexpanded from macro 'absl_nullable'ee
f icno  en257s t | eax#pbrd selcfo_nisnnote n cnhauablsrl*l  a_bnsul__lnNulloalnabblnleeu  nla_mleN#
u#      lI| l                     ^ma
pbll(e 
        |                        ^ 
              \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2lax_polyline_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_polyline_shape.hu:l27l:
aIn file included from b../src/s2/util/coding/coder.hl:e36 :
_In file included from N../src/s2/base/casts.hu:l34l:
aIn file included from b/usr/local/clang/include/absl/log/log.hl:e209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                      ^:
22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(coIn file included from ns2/s2latlng_rect_bounder.ccs:t18 :
cIn file included from h../src/s2/s2latlng_rect_bounder.ha:r21*:
 In file included from a../src/s2/s2latlng.hb:s31l:
_In file included from n../src/s2/r2.ho:n22n:
uIn file included from l../src/s2/util/math/vector.hl: 36f:
iIn file included from l../src/s2/base/logging.he:,21 :
iIn file included from n/usr/local/clang/include/absl/log/check.ht: 37l:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he:,21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h                              ^:
505:1/usr/local/clang/include/absl/base/nullability.h:: 241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'489
:47:   241note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'#
defi  n489e |   a b s l _ ncoonnnsutl lT 1_&N ovn1n,u lclIn file included from o
s2/s2loop.ccn      :s| t                     ^18 
T:
2In file included from &../src/s2/s2loop.h :v322:
,In file included from In file included from  s2/s2lax_polyline_shape.ccc../src/s2/base/logging.h:o:18n21:
s:
tIn file included from In file included from  ../src/s2/s2lax_polyline_shape.h/usr/local/clang/include/absl/log/check.hc::h27a37r:
:
*In file included from  In file included from ../src/s2/util/coding/coder.ha/usr/local/clang/include/absl/log/internal/check_impl.hb:s:36l21:
_:
In file included from n../src/s2/base/casts.ho/usr/local/clang/include/absl/log/internal/check_op.h:n:n34u276l:
l:In file included from  13e/usr/local/clang/include/absl/log/log.hx::p 209warning: r:
ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from e
x/usr/local/clang/include/absl/log/internal/log_impl.ht:  )22 276{:
  | /usr/local/clang/include/absl/log/internal/log_message.h c:o 427n :s 31t\: 
 v      warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| i                                              ^
d
*   427/usr/local/clang/include/absl/base/nullability.ha | b: s 241l _: n 22u l: l  a note: bexpanded from macro 'absl_nonnull' l 
e     o241 p  | e# r da tecfoiornn<se<t(  sctahbadrs:*l:_ oansbtosnrnluel_alnmo &n,_n
uN      lo| l            ^n 
fnau/usr/local/clang/include/absl/base/nullability.hil:ll257u
:r      23e| :                     ^_ m
snote: gexpanded from macro 'absl_nullable')
 A  B257S | L#_dAeTfTiRnIeB UaTbEs_lC_OnLuDl;l
a      b| l                              ^e
 _/usr/local/clang/include/absl/base/nullability.hN:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull'

      |                         ^241
 | #define abIn file included from ss2/s2loop.ccl:_18n:
oIn file included from n../src/s2/s2loop.hn:u32l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* abslIn file included from _s2/s2latlng_rect_bounder.ccn:u18l:
lIn file included from a../src/s2/s2latlng_rect_bounder.hb:l21e:
 In file included from v../src/s2/s2latlng.ha:l31u:
In file included from eIn file included from s2/s2lax_polyline_shape.cc)../src/s2/r2.h:;:18
22:
      :
In file included from | In file included from ../src/s2/s2lax_polyline_shape.h                                                 ^../src/s2/util/math/vector.h:
:27/usr/local/clang/include/absl/base/nullability.h36:
::
In file included from 257In file included from ../src/s2/util/coding/coder.h:../src/s2/base/logging.h:23:36:21:
 :
In file included from note: In file included from ../src/s2/base/casts.hexpanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/check.h:
:3437  :
:
257In file included from In file included from  | /usr/local/clang/include/absl/log/log.h#/usr/local/clang/include/absl/log/internal/check_impl.h:d:209e21:
f:
In file included from i/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/log_impl.hn::e50522 ::
a1/usr/local/clang/include/absl/log/internal/log_message.hb::s 436lwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_36n
:u l/usr/local/clang/include/absl/log/internal/check_op.hwarning: l:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a497
b:l32e   :436_  | Nnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u l
Lloagb  Mle497es
s |        a| g                      ^ ei
DnelbiungeF actoanls(tceoxnpIn file included from srs2/s2loop.cct : c18co:
hnIn file included from as../src/s2/s2loop.htr:* 32c h:
aaIn file included from br../src/s2/base/logging.hs*:l 21a_:
bnIn file included from sol/usr/local/clang/include/absl/log/check.h_n:nn37uu:
llIn file included from ll/usr/local/clang/include/absl/log/internal/check_impl.h a:fb21il:
le/usr/local/clang/include/absl/log/internal/check_op.he :n,278a
m:e      13#| :                                   ^# 
Iwarning: m/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p:
l241(:   22 278 : |   c note:  o expanded from macro 'absl_nonnull'n 
s   t 241    | v# o die df*i   n aeb  sa\l
b_s      nlu| _                               ^lnlo
anbnlu/usr/local/clang/include/absl/base/nullability.hel :lo 257p_e:Nro23ant:nou rl<note: lexpanded from macro 'absl_nullable'<
(
      s|   t                     ^d257
: | :#odsetfrieam&n,e  satbds:l:_nnuullllpatbrl_et )_;N
u      l| l            ^a
bl/usr/local/clang/include/absl/base/nullability.he:
257      :| 23                      ^:
 note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2latlng_rect_bounder.ccn:e18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
   241 | 29#de:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
no/usr/local/clang/include/absl/synchronization/mutex.hn:n851u:l45l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnull
      |                        ^851
 |       bool (absl::type_identity<T>::type::* absl_nonnull method)(In file included from )s2/s2max_distance_targets.cc
:      16| :
                                            ^In file included from 
../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 24:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/hash/hash.h
:89:
In file included from   /usr/local/clang/include/absl/hash/internal/hash.h241: | 79#:
d/usr/local/clang/include/absl/base/internal/endian.he:f258i:n36e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o258n | niunllli n_eN ouninnutl3l2
_      t|                       ^L
oad32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2lax_polygon_shape.cc241: | 18#:
dIn file included from e../src/s2/s2lax_polygon_shape.hf:i31n:
eIn file included from  ../src/s2/encoded_s2point_vector.ha:b29s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
94      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* In file included from as2/s2max_distance_targets.ccb:s16l:
_In file included from n../src/s2/s2max_distance_targets.ho:n27n:
uIn file included from l../src/s2/s1angle.hl: 28c:
oIn file included from n../src/s2/s2point.hd:)24;:

In file included from       /usr/local/clang/include/absl/hash/hash.h| :                                 ^89
:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/base/nullability.h::79241:
:22/usr/local/clang/include/absl/base/internal/endian.h:: 262:note: 27expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #d  e262f | iinnel ianbes lv_oniodn nSutlolr e_3N2o(nvnouildl*
       a| b                     ^s
l_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2lax_polygon_shape.cco:n18n:
uIn file included from l../src/s2/s2lax_polygon_shape.hl:
31      :
| In file included from                      ^../src/s2/encoded_s2point_vector.h
:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit ConditionIn file included from (s2/s2max_distance_targets.ccc:o16n:
sIn file included from t../src/s2/s2max_distance_targets.h :T27*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n24n:
uIn file included from l/usr/local/clang/include/absl/hash/hash.hl: 89o:
bIn file included from j/usr/local/clang/include/absl/hash/internal/hash.h):
79      :
| /usr/local/clang/include/absl/base/internal/endian.h                              ^:
266:36/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  266   | 241 | i#ndleifnien eu ianbts6l4__nto nLnoualdl6 4_(Ncoonnnsutl lv
o      i| d                     ^*
 absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2max_distance_targets.cc:16:
  In file included from 896../src/s2/s2max_distance_targets.h | : 27 :
eIn file included from x../src/s2/s1angle.hp:l28i:
cIn file included from i../src/s2/s2point.ht: 24C:
oIn file included from n/usr/local/clang/include/absl/hash/hash.hd:i89t:
iIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:(79c:
o/usr/local/clang/include/absl/base/internal/endian.hn:s270t: 27T:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n270o | ninnulliln eo bj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2lax_polyline_shape.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2lax_polyline_shape.h:  27241:
 | In file included from #../src/s2/util/coding/coder.hd:e36f:
iIn file included from n../src/s2/base/casts.he: 34a:
bIn file included from s/usr/local/clang/include/absl/log/log.hl:_209n:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hn:u22l:
l/usr/local/clang/include/absl/log/internal/log_message.h :_446N:o43n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnIn file included from us2/s2lax_polygon_shape.ccl:l18 :
fIn file included from i../src/s2/s2lax_polygon_shape.hl:e31,:

In file included from       ../src/s2/encoded_s2point_vector.h| :                                          ^29
:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n922e: 48a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n922u | l l  s_tNaotnincu lblo
o      l|                       ^G
uaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      In file included from | s2/s2lax_polyline_shape.cc                      ^:
18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from ../src/s2/base/casts.hs2/s2lax_polygon_shape.cc::3418:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h../src/s2/s2lax_polygon_shape.h::20931:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/encoded_s2point_vector.h::2229:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2coder.h::45423::
38In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h454: | 94 :
 In file included from L/usr/local/clang/include/absl/strings/internal/cordz_info.h:31o:
g/usr/local/clang/include/absl/synchronization/mutex.hM:e923s:s48a:g ewarning: Qtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
iet  l923y | F a t a l ( c o n s t   c h a r *   a b s l _ n o n n u l l  cfoinlset, 
C      o| n                                     ^d
iti/usr/local/clang/include/absl/base/nullability.ho:n241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef ibn)e; 
a      b| s                                               ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: _expanded from macro 'absl_nullable'N
on  n257u | l#ld
e      f| i                     ^n
e absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessagIn file included from es2/s2lax_polygon_shape.ccQ:u18i:
eIn file included from t../src/s2/s2lax_polygon_shape.hl:y31F:
aIn file included from t../src/s2/encoded_s2point_vector.ha:l29(:
cIn file included from o../src/s2/s2coder.hn:s23t:
 In file included from c/usr/local/clang/include/absl/status/status.hh:a67r:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
f/usr/local/clang/include/absl/synchronization/mutex.hi:l948e:,10 :i nwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
line  ,948
 |        |                                       ^b
oo/usr/local/clang/include/absl/base/nullability.hl: 241(:*22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef ienvea la_b)s(lc_onnosntn uCloln d_iNtoinonnu*l la
b      s| l                     ^_
nonnull) In file included from =s2/s2lax_polyline_shape.cc :n18u:
lIn file included from l../src/s2/s2lax_polyline_shape.hp:t27r:
;In file included from 
../src/s2/util/coding/coder.h      :| 36         ^:

In file included from ../src/s2/base/casts.h:/usr/local/clang/include/absl/base/nullability.h34::
257In file included from :/usr/local/clang/include/absl/log/log.h23::209 :
In file included from note: /usr/local/clang/include/absl/log/internal/log_impl.hexpanded from macro 'absl_nullable':
22:
  /usr/local/clang/include/absl/log/internal/log_message.h257: | 457#:d38e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s457l | _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
  consIn file included from ts2/s2lax_polygon_shape.cc :c18h:
aIn file included from r../src/s2/s2lax_polygon_shape.h*: 31a:
bIn file included from s../src/s2/encoded_s2point_vector.hl:_29n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.hf:a67i:
lIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hr:e29_:
mIn file included from s/usr/local/clang/include/absl/strings/cord.hg:)94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                     ^:
31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241948::2248::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #948d | e f ibnoeo la b(s*la_bnsoln_nnuullll a_bNloen neuvlall
_      )| (                     ^c
onst Condition* ababsl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2loop.cc506: | 18A:
BIn file included from S../src/s2/s2loop.hL:_32L:
OIn file included from G../src/s2/base/logging.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/check.hR:N37A:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hC:H21E:
C/usr/local/clang/include/absl/log/internal/check_op.hK:_323O:P46_:I Mwarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
(Che  c323k | _ G Ef,r i>e=n)d
       v| o^i
d A/usr/local/clang/include/absl/log/internal/check_op.hb:s488l:F32o:r mnote: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
Flu  s488h | ( S tirnilnignief ycSoinnskt*e xapbrs lc_onnosntn uclhla rs*i nakb,s
l      _| n                                             ^u
lla/usr/local/clang/include/absl/base/nullability.hb:l241e: 22n:a mnote: eexpanded from macro 'absl_nonnull'#
#I  m241p | l#(d e f i n e   a b s l _ n o n n u l l  \_
N      o| n                               ^n
ull
/usr/local/clang/include/absl/base/nullability.h      :| 257                     ^:
23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
void Storse6l4_(nvoonindu*l la)b s=l _nnuolnlnputlrl; 
p      ,|                                                 ^u
int64_/usr/local/clang/include/absl/base/nullability.ht: 241v:)22 :{ 
note:       expanded from macro 'absl_nonnull'| 
                          ^
  241 | #def/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nonn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18In file included from :
s2/s2hausdorff_distance_query.ccIn file included from :../src/s2/s2lax_polygon_shape.h16::
31In file included from :
../src/s2/s2hausdorff_distance_query.hIn file included from :../src/s2/encoded_s2point_vector.h23::
29In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2coder.h28::
23In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29:
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/cord.h1031::9442:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:warning: 31:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46:  1031 | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
lin e1093  | c o nvsoti ds tRaetmuosIn file included from _ints2/s2loop.cce:r18n:
aIn file included from l../src/s2/s2loop.h:::32S:
tIn file included from a../src/s2/base/logging.ht:u21s:
RIn file included from e/usr/local/clang/include/absl/log/check.hp:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
no/usr/local/clang/include/absl/log/internal/check_op.hn:n428u:l44l:  Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tus::RepT  o428P | oAiBnStLe_rA(T
T      R| I                                         ^B
UTE_RE/usr/local/clang/include/absl/base/nullability.hT:U241R:N22S:_ Nnote: Oexpanded from macro 'absl_nonnull'N
NUL  L241  | c#odnesfti nceh aarb*s la_bnsoln_nnuolnln u_lNlo nMnauklelC
h      e| c                     ^k
OpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:In file included from 23s2/s2loop.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2loop.h:
:In file included from 32../src/s2/s2point.h:
:In file included from 27../src/s2/base/logging.h:
:In file included from 21../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/check.h:
:37/usr/local/clang/include/absl/status/status.h:
:In file included from 1038/usr/local/clang/include/absl/log/internal/check_impl.h::3321::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]429
:31:  warning: 1038type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      s429t | a t u s _Ti1n tve1r,n aTl2: :vS2t,a tcuosnRsetp *c haabrs*l _anbosnln_unloln nruelpl)  e{x
p      r| t                                ^e
xt/usr/local/clang/include/absl/base/nullability.h): 241A:B22S:L _note: Aexpanded from macro 'absl_nonnull'T
TR  I241B | U#TdEe_fNiOnIeN LaIbNsEl;_
n      o| n                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        | 241                     ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2loop.ccs2/s2hausdorff_distance_query.cc::1816:
:
In file included from In file included from ../src/s2/s2loop.h../src/s2/s2hausdorff_distance_query.h::3223:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s1angle.h::2128:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2point.h::3727:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2coder.h::2123:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::4331063::5613::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   4331063 |  |  c o n s t   c h a r *   a b s l _ n o n n u l l   S t a t u s M e s s a g e A s C S tcro(n
s      t|              ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld eefxipnret eaxbts)l _{n
o      n| n                                                       ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | ve(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const ConditiIn file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noon& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const chIn file included from as2/s2lax_polyline_shape.ccr:*18 :
aIn file included from b../src/s2/s2lax_polyline_shape.hs:l27_:
nIn file included from u../src/s2/util/coding/coder.hl:l36a:
bIn file included from l../src/s2/base/casts.he: 36s:
2In file included from ,../src/s2/base/logging.h
:      21| :
                ^In file included from 
/usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/base/nullability.h37::
257In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h23::21 :
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/check_op.h
:180:  42257: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine a  b180s | lA_BnSuLl_lAaTbTlReI B_UNTuEl_lPaUbRlEe_
F      U| N                      ^C
TION conIn file included from ss2/s2latlng_rect_bounder.cct: 18c:
hIn file included from a../src/s2/s2latlng_rect_bounder.hr:*21 :
aIn file included from b../src/s2/s2latlng.hs:l31_:
nIn file included from o../src/s2/r2.hn:n22u:
lIn file included from l../src/s2/util/math/vector.h :M36a:
kIn file included from e../src/s2/base/logging.hC:h21e:
cIn file included from k/usr/local/clang/include/absl/log/check.hF:a37i:
lIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.ht:r21i:
n/usr/local/clang/include/absl/log/internal/check_op.hg:(518
:      47| :                                         ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:
22: note: expanded from macro 'absl_nonnull'
 1231 |      241  | T#*d eafbisnle_ naublslla_bniolnintuyl_lu n_kNnoonwnnu lalr
g      )| 
                     ^      
|        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #dIn file included from es2/s2lax_polyline_shape.ccf:i18n:
eIn file included from  ../src/s2/s2lax_polyline_shape.h:a27b:
sIn file included from l../src/s2/util/coding/coder.h_:n36u:
lIn file included from l../src/s2/base/casts.h:a36b:
iIn file included from l../src/s2/base/logging.hi:t21:
yIn file included from _/usr/local/clang/include/absl/log/check.hu:37n:
kIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:w21n:
 /usr/local/clang/include/absl/log/internal/check_op.h_:N181u:l25l: _warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
spec  i181f | i e d 
       c| o                                 ^n
st absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2lax_polygon_shape.ccn:n18u:
lIn file included from l../src/s2/s2lax_polygon_shape.h
:      31| :
                     ^In file included from 
../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2lax_polyline_shape.cc29::
18In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2lax_polyline_shape.h94::
27In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/util/coding/coder.h31::
36:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/base/casts.h1241::3612:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
 In file included from 1241/usr/local/clang/include/absl/log/internal/check_impl.h | :21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :181 :b58:o owarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
(*ab  s181l | _ n o n ncuolnls tf uanbcs)l(:T:*S taabtsuls_*n ualblsalb_inlointnyu_luln ksntoawtnu)s,,
       c| o           ^n
st /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nper eafbisxl)_;n
o      n| n                                                         ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define In file included from as2/s2lax_polygon_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_polygon_shape.ho:n31n:
uIn file included from l../src/s2/encoded_s2point_vector.hl: 29_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool In file included from (s2/s2lax_polyline_shape.cc*:a18b:
sIn file included from l../src/s2/s2lax_polyline_shape.h_:n27o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:
 In file included from f../src/s2/base/casts.hu:n36c:
)In file included from (../src/s2/base/logging.hT:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hi:l189i:28t:y _warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
kno  w189n | )i,n
l      i| n                                 ^e
 c/usr/local/clang/include/absl/base/nullability.ho:n289s:t34 :a bnote: sexpanded from macro 'absl_nullability_unknown'l
::  S289t | a#tduesf*i naeb salb_snlo_nnnuulllla bAislSittayt_uusn(kcnoonwsnt  _aNbuslll:_:uSntsapteucsi&f ise)d 
{      
|                                        ^| 
                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2lax_polygon_shape.cc_:n18o:
nIn file included from n../src/s2/s2lax_polygon_shape.hu:l31l:
 In file included from _../src/s2/encoded_s2point_vector.hN:o29n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<In file included from Ts2/s2lax_polyline_shape.cc>::18::
tIn file included from y../src/s2/s2lax_polyline_shape.hp:e27*:
 In file included from a../src/s2/util/coding/coder.hb:s36l:
_In file included from n../src/s2/base/casts.hu:l36l:
aIn file included from b../src/s2/base/logging.hi:l21i:
tIn file included from y/usr/local/clang/include/absl/log/check.h_:u37n:
kIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:w21n:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 193                                           ^:
21: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]289
:34:   note: 193expanded from macro 'absl_nullability_unknown' | 
co  n289s | t# daebfsiln:e: Satbastlu_sn*u lalbasbli_lniotnyn_uulnlk nAoswSnt a_tNuusl(lc_ounnsstp eacbisfli:e:dS
t      a| t                                 ^u
sOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2lax_polygon_shape.cc_:N18o:
nIn file included from n../src/s2/s2lax_polygon_shape.hu:l31l:

In file included from       ../src/s2/encoded_s2point_vector.h| :                     ^29
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnIn file included from us2/s2lax_polyline_shape.ccl:l18 :
oIn file included from b../src/s2/s2lax_polyline_shape.hj:e27c:
tIn file included from ,../src/s2/util/coding/coder.h
:      36| :
       ^In file included from 
../src/s2/base/casts.h:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e202f:46i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _202n | o n neuxlpll i_cNiotn nCuhlelc
k      O| p                     ^M
essageBuilder(constIn file included from  s2/s2lax_polygon_shape.ccc:h18a:
rIn file included from *../src/s2/s2lax_polygon_shape.h :a31b:
sIn file included from l../src/s2/encoded_s2point_vector.h_:n29o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from e/usr/local/clang/include/absl/status/status.hx:p67r:
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250nnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
xIn file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
tIn file included from ../src/s2/base/logging.h):;21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                             ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h463::2411::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 463# | dAeBfSiLn_eL OaGb_sIlN_TnEoRnNnAuLl_lD E_FNIoNnEn_uMlAlK
E      _| C                     ^H
ECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^In file included from 
s2/s2lax_polyline_shape.cc:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2lax_polyline_shape.h241::2722:
:In file included from  ../src/s2/util/coding/coder.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from ../src/s2/base/casts.h  :24136 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h: 37:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n209n:u15l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
on  n209 | u l lc
o      n| s                     ^t
 char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2loop.ccn:e18 :
aIn file included from b../src/s2/s2loop.hs:l32_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h
:      465| :                     ^1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \In file included from 
s2/s2lax_polyline_shape.cc      :| 18                              ^:

In file included from ../src/s2/s2lax_polyline_shape.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/util/coding/coder.h22::36 :
In file included from note: ../src/s2/base/casts.h:expanded from macro 'absl_nonnull'36
:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n226o:59n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _No  n226n | uvloli
d       | M                     ^a
keCheIn file included from cs2/s2loop.cck:O18p:
VIn file included from a../src/s2/s2loop.hl:u32e:
SIn file included from t../src/s2/base/logging.hr:i21n:
gIn file included from (/usr/local/clang/include/absl/log/check.hs:t37d:
:In file included from :/usr/local/clang/include/absl/log/internal/check_impl.ho:s21t:
r/usr/local/clang/include/absl/log/internal/check_op.he:a465m:&66 :o swarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t465  | vAoBiSdL*_ LaObGs_lI_NnTuElRlNaAbLl_eD EpF)I;N
E      _| M                                                          ^A
KE/usr/local/clang/include/absl/base/nullability.h_:C257H:E23C:K _note: Oexpanded from macro 'absl_nullable'P
_S  T257R | I#NdGe_fEiXnTeE RaNb(sclo_nnsutl lvaobilde*  _aNbuslll_anbolnen
u      l| l                      ^)
;
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_In file included from Os2/s2lax_polyline_shape.ccP:18_:
SIn file included from T../src/s2/s2lax_polyline_shape.h:R27:
IIn file included from N../src/s2/util/coding/coder.h:G36_:
EIn file included from ../src/s2/base/casts.hX:T36:
EIn file included from R../src/s2/base/logging.hN:(21c:
oIn file included from n/usr/local/clang/include/absl/log/check.h:s37t:
 In file included from v/usr/local/clang/include/absl/log/internal/check_impl.ho:i21:
d/usr/local/clang/include/absl/log/internal/check_op.h*: 276:a13:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n276 | ucloln)s;t
       v| o^i
d*/usr/local/clang/include/absl/log/internal/check_op.h :a450b:s25l:_ nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
la  b450l | e   o p e r axt,o rx<,< (csotnds:t: ocshtarre*a ma&b,s
l      _| n            ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257:l23):
       | note:                         ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea balbes l__Nnuolnlnaubllle 
_      N| o                      ^n
null
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                          In file included from  s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h : 32 :
 In file included from  ../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37v:
oIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hd:*21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s502l:_1n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
ble   502v | aAlBuSeL)_;L
O      G| _                                                 ^I
N/usr/local/clang/include/absl/base/nullability.hT:257E:R23:N Anote: Lexpanded from macro 'absl_nullable'_
C  H257E | C#Kd_eOfine   absl518_ |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
n  u257l | l#adbelfei n_eN ualblsalb_lneu
l      | l                      ^a
ble _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.hIn file included from :s2/s2latlng_rect_bounder.cc36::
18In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2latlng_rect_bounder.h36::
21In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2latlng.h21::
31In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/r2.h37::
22In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/util/math/vector.h21::
36/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 278../src/s2/base/logging.h::1321::
 In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :27821 | :
c/usr/local/clang/include/absl/log/internal/check_op.ho:n519s:t17 :v owarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
*   a519b | s l _ n uclolnasbtl ec hoapre*r aatbosrl<_<n(osntndu:l:lo setxrperatme&x,t )s;t
d      :| :                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:p241t:r22_:t )note: ;expanded from macro 'absl_nonnull'

      |               ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      | In file included from             ^s2/s2lax_polyline_shape.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2lax_polyline_shape.h257::2723:
:In file included from  ../src/s2/util/coding/coder.hnote: :expanded from macro 'absl_nullable'36
:
In file included from   ../src/s2/base/casts.h257: | 36#:
In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:a292b:l13e:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b292l | ec
o      n| s                      ^t
 charIn file included from *s2/s2latlng_rect_bounder.cc :a18b:
sIn file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from l../src/s2/s2latlng.h_:n31o:
nIn file included from n../src/s2/r2.hu:l22l:
 In file included from o../src/s2/util/math/vector.hp:e36r:
aIn file included from t../src/s2/base/logging.ho:r21<:
<In file included from (/usr/local/clang/include/absl/log/check.hs:t37d:
:In file included from :/usr/local/clang/include/absl/log/internal/check_impl.hb:a21s:
i/usr/local/clang/include/absl/log/internal/check_op.hc:_521o:s17t:r ewarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]m
<ch  a521r | ,   T r aciotnss>t& ,c
h      a| r            ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
b  l241e |  #sd1e,f icnoen satb sclh_anro*n naublsll __nNuolnlnaubllle
       s| 2                     ^,

      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2lax_polyline_shape.cc257: | 18:
#In file included from d../src/s2/s2lax_polyline_shape.he:f27:
iIn file included from n../src/s2/util/coding/coder.he: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
uIn file included from l../src/s2/base/logging.hl:a21b:
lIn file included from e/usr/local/clang/include/absl/log/check.h: 37_:
In file included from N/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
a/usr/local/clang/include/absl/log/internal/check_op.hb:l293:e49
:       | warning:                       ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  293 |    In file included from  s2/s2latlng_rect_bounder.cc : 18 :
 In file included from  ../src/s2/s2latlng_rect_bounder.h : 21 :
 In file included from  ../src/s2/s2latlng.h : 31 :
 In file included from  ../src/s2/r2.h : 22 :
 In file included from  ../src/s2/util/math/vector.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
c/usr/local/clang/include/absl/log/internal/check_op.hh:a521r:*47 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_no  n521n | u l l ) ;c
o      | n                                                ^s
t /usr/local/clang/include/absl/base/nullability.hc:241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  sa1b,s lc_onnosntn uclhla r_*N oanbnsull_ln
u      l| l                     ^a
ble s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2lax_polyline_shape.cc257: | 18#:
In file included from d../src/s2/s2lax_polyline_shape.he:f27i:
nIn file included from e../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/log/check.h_:N37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
e/usr/local/clang/include/absl/log/internal/check_op.h
:      295| :20                      ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2latlng_rect_bounder.cc:  18295:
 | In file included from c../src/s2/s2latlng_rect_bounder.ho:n21s:
tIn file included from  ../src/s2/s2latlng.hs:i31g:
nIn file included from e../src/s2/r2.hd: 22c:
hIn file included from a../src/s2/util/math/vector.hr:*36 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :o21p:
e/usr/local/clang/include/absl/log/internal/check_op.hr:a522t:o17r:< <warning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
td  :522: | b a s i cc_oonssttr ecahma<rc*h aarb,s lT_rnaointnsu>l&l, 
e      x| p                   ^r
te/usr/local/clang/include/absl/base/nullability.hx:t241):;22
:       | note:                 ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |       :   43 :    warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
         1250  |          b o o l   ( a b s l : : t y pceo_nisdte nstiigtnye<dT >c:h:atry*p ea:bsl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull Make:* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnCulPl cv)_)I;M
P      L| (                                              ^C
heck_/usr/local/clang/include/absl/base/nullability.hE:Q241,: 22=:= )note: 
expanded from macro 'absl_nonnull'      
| ^
  241 | #de/usr/local/clang/include/absl/log/internal/check_op.hf:i488n:e32 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
_nonn  u488l | l   _iNnolinnneu lclo
n      s| t                     ^e
xpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
heckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(       453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern              \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNIn file included from As2/s2hausdorff_distance_query.ccL:_16D:
EIn file included from F../src/s2/s2hausdorff_distance_query.hI:N24E:
_In file included from M../src/s2/s1chord_angle.hA:K31E:
_In file included from C../src/s2/s2pointutil.hH:E27C:
K_O../src/s2/util/math/matrix3x3.hP:_276S:T5R:I Nwarning: Gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
EXTER  N276( | c o n s tS 2s_tCdH:E:CsKt_rNiEn(gd&e)t;,
       V| T^y
pe/usr/local/clang/include/absl/log/internal/check_op.h(:0449):)31 :< <note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'"
 Ca  n449' | t   ienxvteern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:rse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPIn file included from LIn file included from s2/s2loop.cc(s2/s2lax_polygon_shape.cc:(:v1818a:
:
lIn file included from In file included from 1../src/s2/s2loop.h../src/s2/s2lax_polygon_shape.h)::,3231 :
:
#In file included from In file included from v../src/s2/base/logging.h../src/s2/encoded_s2point_vector.ha::l21291:
:
,In file included from In file included from  /usr/local/clang/include/absl/log/check.h../src/s2/s2coder.h(::v3723a:
:
lIn file included from In file included from 2/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/status.h)::,21 67#:
:
vIn file included from a/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.hl::250429)::

1/usr/local/clang/include/absl/strings/cord.h      ::|  109  ^:warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]53
:/usr/local/clang/include/absl/log/internal/check_impl.h :51  warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]5043
 | :A B  note: S109expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'L | 
_vLo   iO51dG |  _ CI oANpBTySECLRo_NrLAdOLT_Go_CSIHtNrTEEiRCnNKgA(_Lc_OoCnPHsE_tC IKCM_oPOrPLd(&(C hCsherceck,c_ NksEt_,d L:!:E=s,,t  rv<ian=lg)1*,
  a      vba| sll^1__
ntoen/usr/local/clang/include/absl/log/internal/check_op.hxnt:u,l488 l:v 32ad:ls2 t,)note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL';v

a      l| 2                                                      ^_488
t | e x/usr/local/clang/include/absl/base/nullability.h t:i)241
n:      l22| i:  ^n 
enote:  /usr/local/clang/include/absl/log/internal/check_op.hcexpanded from macro 'absl_nonnull':o
68n  :s24122t | :#e dxnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'pfr
i nc   oe68 n | a sb stwlh _incloehn na(ucrlol*n s _taN obcnhsnaulrl*_l n
au      bl| s                     ^ll
a_bnluel lnaabmlee# #aIbmspll_(l o In file included from g s2/s2lax_polygon_shape.cc_ : i18n :
t In file included from e ../src/s2/s2lax_polygon_shape.hr :n 31a :
l In file included from _ ../src/s2/encoded_s2point_vector.hc :h 29e :
c In file included from k ../src/s2/s2coder.h_ :o\23p
:
_      In file included from r| /usr/local/clang/include/absl/status/status.he                               ^:s
67u:
lIn file included from t/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h :: 25729 ::
 23/usr/local/clang/include/absl/strings/cord.h ::  110note:  : expanded from macro 'absl_nullable'55 
:    warning:  257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\ | 

#      d|                        ^e110
f | ivnoei da/usr/local/clang/include/absl/base/nullability.h b:As257pl:p_23en:nu lnote: dlexpanded from macro 'absl_nullable'aC
bol  re257d  | T_#odNSuetflrilinaneg b(alcebo
snl      s_tn|  uCl                      ^olr
adb&l es r_cN,u lsltadIn file included from b:s2/s2loop.ccl:e:
s18      t:
| rIn file included from                       ^i../src/s2/s2loop.h
n:g32*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21d:
s/usr/local/clang/include/absl/log/internal/check_op.ht:)504;:
1      :|                                                        ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241/usr/local/clang/include/absl/log/internal/check_op.h::22489:: 47:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  241 |   #489d | e f i n e   acbosnls_tn oTn1n&u lvl1 ,_ NcIn file included from oos2/s2hausdorff_distance_query.ccnn:ns16ut:
l In file included from lT../src/s2/s2hausdorff_distance_query.h
2:      &24|  :
                     ^vIn file included from 
2../src/s2/s1chord_angle.h,: 31c:
oIn file included from n../src/s2/s2pointutil.hs:t27 :
c../src/s2/util/math/matrix3x3.hh:a276r:*5 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no../src/s2/base/logging.hn:n37u:l21l:  enote: xexpanded from macro 'S2_CHECK_NE'p
rte   x37t | )# d{e f i n e  \S
2      _| C                                              ^H
EC/usr/local/clang/include/absl/base/nullability.hK:_241N:E22 :C Hnote: Eexpanded from macro 'absl_nonnull'C
K_  N241E | 
#      d| e                    ^f
in/usr/local/clang/include/absl/log/check.he: 120a:b3sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
: note: 241expanded from macro 'CHECK_NE'
:22:   note: 120expanded from macro 'absl_nonnull' | 
  ABSL  _241L | O#Gd_eIfNiTnEeR NaAbLs_lC_HnEoCnKn_uNlEl_ I_MNPoLn(n(uvlall
1      )| ,                     ^ 
#val1, (val2), #val2)
In file included from       s2/s2lax_polyline_shape.cc| :  ^18
:
In file included from ../src/s2/s2lax_polyline_shape.h:/usr/local/clang/include/absl/log/internal/check_impl.h27::
51In file included from :../src/s2/util/coding/coder.h3::36 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'../src/s2/base/casts.h
:36:
In file included from    ../src/s2/base/logging.h51: | 21 :
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from L/usr/local/clang/include/absl/log/internal/check_impl.hO:G21_:
I/usr/local/clang/include/absl/log/internal/check_op.hN:T460E:R1N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
HECK  _460O | PA(BCShLe_cLkO_GN_EI,N T!E=R,N AvLa_lD1E,F IvNaEl_1M_AtKeEx_tC,H EvCaKl_2O,P _vSaTlR2I_NtGe_xEtX)T
E      R| N  ^(
co/usr/local/clang/include/absl/log/internal/check_op.hn:s75t: 61c:h anote: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'*
 ab   s75l | _ n oAnBnSuLl_lL)O;G
_      I| ^N
TER/usr/local/clang/include/absl/log/internal/check_op.hN:A450L:_25C:H Enote: Cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'K
(:  :450a | b s l : : i mxp,l ixc,i tc_ocnasstt <cchoanrs*t  acbhsalr_*n oanbnsull_ln)o
n      n| u                        ^l
l>/usr/local/clang/include/absl/base/nullability.h(: 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                                                             ^  
241 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:nIn file included from 22es2/s2lax_polygon_shape.cc: : a18note: b:
expanded from macro 'absl_nonnull'sIn file included from l
../src/s2/s2lax_polygon_shape.h_:  n31241o:
 | nIn file included from #n../src/s2/encoded_s2point_vector.hdu:el29:
flIn file included from i ../src/s2/s2coder.hn_:eN23 o:
anIn file included from bn/usr/local/clang/include/absl/status/status.hsu:ll67_l:
n
In file included from o      /usr/local/clang/include/absl/status/internal/status_internal.hn| :n                     ^29u
:
ll/usr/local/clang/include/absl/strings/cord.h :_425N:o62n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  425 |   friend void CopyCordToIn file included from Ss2/s2lax_polyline_shape.cct:r18i:
nIn file included from g../src/s2/s2lax_polyline_shape.h(:c27o:
nIn file included from s../src/s2/util/coding/coder.ht: 36C:
oIn file included from r../src/s2/base/casts.hd:&36 :
sIn file included from r../src/s2/base/logging.hc:,21 :
sIn file included from t/usr/local/clang/include/absl/log/check.hd::37::
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hr:i21n:
g/usr/local/clang/include/absl/log/internal/check_op.h*: 461a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l461l |  AdBsStL)_;L
O      G| _                                                             ^I
NTE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:D Enote: Fexpanded from macro 'absl_nonnull'I
NE  _241M | A#KdEe_fCiHnEeC Ka_bOsPl__SnToRnInNuGl_lE X_TNEoRnNn(u
l      l| 
^      
|                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern templatIn file included from es2/s2lax_polygon_shape.cc :c18o:
nIn file included from s../src/s2/s2lax_polygon_shape.ht: 31c:
hIn file included from a../src/s2/encoded_s2point_vector.hr:*29 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :M29a:
k/usr/local/clang/include/absl/strings/cord.he:C437h:e47c:k Owarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
trin  g437( |       \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a bsstld_:n:osntnruilnlg *_ Naobnsnlu_lnlo
n      n| u                     ^l
l dst)In file included from ;s2/s2lax_polyline_shape.cc
:      18| :
                                              ^In file included from 
../src/s2/s2lax_polyline_shape.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/util/coding/coder.h::2236::
 In file included from note: ../src/s2/base/casts.hexpanded from macro 'absl_nonnull':
36:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n462o:n24n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_N  o462n | n u l l 
c      o| n                     ^s
t signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2lax_polygon_shape.cc| :                     ^18
:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29In file included from :
s2/s2lax_polyline_shape.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2lax_polyline_shape.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h36::
29In file included from :
../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.h::36480:
:In file included from 39../src/s2/base/logging.h:: 21:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.h
:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h480: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 462u:s24i:n gwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
o/usr/local/clang/include/absl/base/nullability.hi:n241t:e22r:  =note:  expanded from macro 'absl_nonnull'c
on  s241t |  #vdaelfuien_et yapbes*l _anbosnln_unloln n_uNloln;n
u      l| l                                      ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: In file included from note: s2/s2lax_polyline_shape.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2lax_polyline_shape.h | :#27d:
eIn file included from f../src/s2/util/coding/coder.hi:n36e:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
461      :| 1                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absIn file included from ls2/s2lax_polygon_shape.cc_:n18o:
nIn file included from n../src/s2/s2lax_polygon_shape.hu:l31l):

In file included from       ../src/s2/encoded_s2point_vector.h| :                        ^29
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e501f:i52n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o501n | n u l l  e_xNpolnincuiltl 
C      h| u                     ^n
kIterator(cord_internal::CordRep* In file included from as2/s2lax_polyline_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_polyline_shape.ho:n27n:
uIn file included from l../src/s2/util/coding/coder.hl: 36t:
rIn file included from e../src/s2/base/casts.he:);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Co36:
In file included from In file included from ../src/s2/base/logging.h:21:
s2/s2max_distance_targets.ccIn file included from In file included from :/usr/local/clang/include/absl/log/check.h16::
s2/s2loop.cc37In file included from ::
../src/s2/s2max_distance_targets.h18In file included from ::
/usr/local/clang/include/absl/log/internal/check_impl.h27In file included from ::
../src/s2/s2loop.h21In file included from ::
../src/s2/s1angle.h32:/usr/local/clang/include/absl/log/internal/check_op.h:
28:In file included from :
463../src/s2/base/logging.hIn file included from ::../src/s2/s2point.h121:::
24 In file included from warning: :
/usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :
/usr/local/clang/include/absl/hash/hash.h37::
89In file included from :
  /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from 463:/usr/local/clang/include/absl/hash/internal/hash.h | 21:A:
90B:
S/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/string_view.hL::_50553L::O154G::_  Iwarning: warning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T

ERNAL_   D  53E505 | F | cIoANnBEs_StMeLAx_KpELr_ OCsGHt_ErICiNKnT_gOE_PvR_iSNeATwRL IN_NuCGl_HlESEXaTCfEeKRS_NtO(r
Pi      n_| gI^VM
iPeLw(/usr/local/clang/include/absl/log/internal/check_op.h(C:ch449oe:cn31ks:t_  Lnote: cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'Th
a,r   <*449 ) | a 
b s      el| x_t^ne
urlnl at/usr/local/clang/include/absl/log/internal/check_op.hbel:me488p :lp32a)t :e{  
cnote:       oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'| n                                                     ^
s
t c  h488a/usr/local/clang/include/absl/base/nullability.h | r:* 257  :ai23bn:sl linote: _nexpanded from macro 'absl_nullable'ne
o nc  no257un | ls#ltd eeMxfapikrnee Cc haoebcnsklsO_tpnS utlcrlihanbagl(re *   _ aN\ub
ls      ll| a                              ^_bn
luel
l      /usr/local/clang/include/absl/base/nullability.ha| :b                      ^241l
:e22 :n anote: mexpanded from macro 'absl_nonnull'e
##  I241m | p#ld(e f i n e   a b s l _ n o n n u l l   _\N
o      n| n                               ^u
ll
      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2lax_polyline_shape.cc :a18b:
sIn file included from l../src/s2/s2lax_polyline_shape.h_:n27u:
lIn file included from l../src/s2/util/coding/coder.ha:b36l:
eIn file included from  ../src/s2/base/casts.h_:N36u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                      ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     constIn file included from  s2/s2loop.ccu:n18s:
iIn file included from g../src/s2/s2loop.hn:e32d:
 In file included from c../src/s2/base/logging.hh:a21r:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l505l:)1;:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                         ^

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::489241::4722::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'absl_nonnull'

    241489 |  | # d e f i n ec oanbsstl _Tn1o&n nvu1l,l  c_oNnosntn uTl2l&
       v| 2                     ^,
 const chIn file included from as2/s2lax_polyline_shape.ccr:*18 :
aIn file included from b../src/s2/s2lax_polyline_shape.hs:l27_:
nIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h :e36x:
pIn file included from r../src/s2/base/logging.ht:e21x:
tIn file included from )/usr/local/clang/include/absl/log/check.h :{37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21\:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 464                                              ^:
26:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const chaIn file included from rs2/s2loop.cc*: 18a:
bIn file included from s../src/s2/s2loop.hl:_32n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from )/usr/local/clang/include/absl/log/check.h
:      37| :
                        ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241:/usr/local/clang/include/absl/log/internal/check_op.h22::505 :note: 1expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#d/usr/local/clang/include/absl/log/internal/check_op.he:f497i:n32e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
l_no  n497n | u l li n_lNionnen ucloln
s      t| e                     ^x
pr const char* absl_nullable name##Impl(    In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 27 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from \../src/s2/base/casts.h
:      36| :
                               ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/check.h::2337::
 In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nullable':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h257: | 465#:d1e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l465_ | nAuBlSlLa_bLlOeG __INNuTlElRaNbAlLe_
D      E| F                      ^I
NE_MAKE_CIn file included from Hs2/s2loop.ccE:C18K:
_In file included from O../src/s2/s2loop.hP:_32S:
TIn file included from R../src/s2/base/logging.hI:N21G:
_In file included from E/usr/local/clang/include/absl/log/check.hX:T37E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.h(:c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t505 :v1o:i dwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l498_:n35o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l);  
498       | |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449i:n31t:  vnote: 1expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN',
 in  t449  | v 2 ,e xctoenrsnt  tcehmaprl*a taeb sclo_nnsotn ncuhlalr *e xapbrstle_xnto)n n{u l l   M a k e C h e c k O p S t r\i
n      g| (                                  ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                              ^:
 /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlull
      |                      ^
rd AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:In file included from 43s2/s2loop.cc:: 18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2loop.h:32:
In file included from   ../src/s2/base/logging.h795: | 21 :
 In file included from f/usr/local/clang/include/absl/log/check.hr:i37e:
nIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h :v21o:
id/usr/local/clang/include/absl/log/internal/check_op.h :A506b:s1l:F owarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]m
atFl  u506s | hA(BaSbLs_lL:O:GC_oIrNdT*E RaNbAsLl__CnHoEnCnKu_lOlP _cIoMrPdL,(
C      h| e                                          ^c
k_/usr/local/clang/include/absl/base/nullability.hG:E241,: 22>:= )note: 
expanded from macro 'absl_nonnull'      
| ^  
241 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e488f:i32n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_  n488o | n n uilnll i_nNeo ncnounlslt
e      x| p                     ^r
 const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2lax_polygon_shape.cc_:N18o:
nIn file included from n../src/s2/s2lax_polygon_shape.hu:l31l:

In file included from       ../src/s2/encoded_s2point_vector.h| :                     ^29
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2loop.ccs:l18_:
nIn file included from u../src/s2/s2loop.hl:l32a:
bIn file included from l../src/s2/base/logging.he: 21_:
NIn file included from u/usr/local/clang/include/absl/log/check.hl:l37a:
bIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.he:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                      ^:
506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##IIn file included from ms2/s2loop.ccp:l18(:
 In file included from  ../src/s2/s2loop.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21\:

      /usr/local/clang/include/absl/log/internal/check_op.h| :                               ^507
:1/usr/local/clang/include/absl/base/nullability.h:: 257warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]23
: note: expanded from macro 'absl_nullable'  
507 |   A257B | S#Ld_eLfOiGn_eI NaTbEsRlN_AnLu_lClHaEbClKe_ O_PN_uIlMlPaLb(lCeh
e      c| k                      ^_
GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:In file included from 32s2/s2lax_polyline_shape.cc:: 18note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/s2lax_polyline_shape.h:27:
  In file included from 488../src/s2/util/coding/coder.h | : 36 :
iIn file included from n../src/s2/base/casts.hl:i36n:
eIn file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.he:x37p:
rIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 502c:h1a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_489n:u47l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
e n  a489m | e # # I m p lc(o n s t   T 1 &   v 1 ,   c o n s t   T\2
&       | v                               ^2
, /usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  cnote: hexpanded from macro 'absl_nullable'a
r*   257a | b#sdle_fnionnen ualbls le_xnpurltleaxbtl)e  {_ N u l l a\b
l      e| 
                                              ^      
|                       ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2loop.cce:f18i:
nIn file included from e../src/s2/s2loop.h :a32b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l507l:
1      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2lax_polyline_shape.cc_:N18o:
nIn file included from n../src/s2/s2lax_polyline_shape.hu:l27l:

In file included from       ../src/s2/util/coding/coder.h| :                     ^36
:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      | In file included from                                ^s2/s2loop.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2loop.h257::3223:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/check.h  :25737 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 507a:b1s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll/usr/local/clang/include/absl/log/internal/check_op.ha:b497l:e32 :_ Nnote: ulexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
able  
497       | |                        ^ 
inline constIn file included from es2/s2lax_polyline_shape.ccx:p18r:
 In file included from c../src/s2/s2lax_polyline_shape.ho:n27s:
tIn file included from  ../src/s2/util/coding/coder.hc:h36a:
rIn file included from *../src/s2/base/casts.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hn:a21m:
e/usr/local/clang/include/absl/log/internal/check_op.h#:#502I:m1p:l (warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 498 : 35 :   note:       expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       in t v1In file included from , s2/s2lax_polygon_shape.cc \:
i18n      :
t| In file included from                                 ^../src/s2/s2lax_polygon_shape.hv
:231,:
 In file included from c../src/s2/encoded_s2point_vector.ho:/usr/local/clang/include/absl/base/nullability.hn29s::
t257In file included from  :c../src/s2/s2coder.hh23:a:23r :
note: *expanded from macro 'absl_nullable'In file included from  
/usr/local/clang/include/absl/status/status.ha:b67  s:
257lIn file included from  | _/usr/local/clang/include/absl/status/internal/status_internal.h#n:do29en:
nf/usr/local/clang/include/absl/strings/cord.hui:ln927el : a43eb:xs plwarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_t
neuxlt  l)927 a | { b l   e       _   N   u   l   l   a   b l   e  \
 
              | |                       ^                                   ^ 

   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: Cexpanded from macro 'absl_nonnull'o
rd  R241eIn file included from  | p#s2/s2loop.cc*d: e18afb:
isnIn file included from le_../src/s2/s2loop.h n:aub32lsl:
laIn file included from _bn../src/s2/base/logging.hloe:n n21rue:
lpIn file included from l) /usr/local/clang/include/absl/log/check.h;_
:N      o37| n:
                                          ^nIn file included from 
u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21/usr/local/clang/include/absl/base/nullability.h
:
:      /usr/local/clang/include/absl/log/internal/check_op.h257| ::                     ^50723
::1 :note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  257 | /usr/local/clang/include/absl/log/internal/check_op.h#:d498e:f35i:n enote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
bsl_  n498u | l l a b l e  i_nNtu lvl1a,b lien
t       | v                      ^2
, const char* absl_nonnull exIn file included from ps2/s2lax_polygon_shape.ccr:t18e:
xIn file included from t../src/s2/s2lax_polygon_shape.h): 31{:
In file included from  ../src/s2/encoded_s2point_vector.h : 29 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :\29
:
      /usr/local/clang/include/absl/strings/cord.h| :                                  ^929
:26/usr/local/clang/include/absl/base/nullability.h:: 241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'929
 |     241  |  #vdoeifdi nSew aapb(sIln_lnionnenRuelpl*  _aNbosnln_unloln
n      u| l                     ^l
 rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CIn file included from hs2/s2lax_polyline_shape.cce:c18k:
sIn file included from t../src/s2/s2lax_polyline_shape.hr:c27m:
pIn file included from t../src/s2/util/coding/coder.hr:u36e:
IIn file included from m../src/s2/base/casts.hp:l36(:

In file included from       ../src/s2/base/logging.h| :            ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/internal/check_impl.h::2321::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nullable'503
:1:   257warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
de/usr/local/clang/include/absl/log/internal/check_op.hf:i497n:e32 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
_nul  l497a | b l ei n_lNiunlel acbolnes
t      e| x                      ^p
r consIn file included from ts2/s2loop.cc :c18h:
aIn file included from r../src/s2/s2loop.h*: 32a:
bIn file included from s../src/s2/base/logging.hl:_21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :n21a:
m/usr/local/clang/include/absl/log/internal/check_op.he:#512#:I17m:p lwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       512  |          c o nst char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullabl18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree ,   M e t\h
o      d| I                               ^d
entifi/usr/local/clang/include/absl/base/nullability.he:r257 :m23e:t hnote: oexpanded from macro 'absl_nullable'd
);
        | 257                              ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien e_ Naublslla_bnloen
n      u| l                      ^l
 _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2lax_polygon_shape.cc::49818::
35In file included from :../src/s2/s2lax_polygon_shape.h :31note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/encoded_s2point_vector.h:29:
In file included from   ../src/s2/s2coder.h498: | 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.ht: 29v:
1/usr/local/clang/include/absl/strings/cord.h,: 994i:n30t:  vwarning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 co  n994s | t   c h avro*i da bCsolp_ynToon(nsutldl: :esxtprritnegx*t )a b{s l _ n o n n u l l   d s t )   c o\n
s      t|                                    ^{

      | /usr/local/clang/include/absl/base/nullability.h                             ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nuell asb1l,e  ccoonrsdtz _cihnafro*( )a bcsoln_sntu l{l
a      b| l                                    ^e
 s/usr/local/clang/include/absl/base/nullability.h2:,257
:      23| :                ^ 
note: expanded from macro 'absl_nullable'
  257/usr/local/clang/include/absl/base/nullability.h | :#257d:e23f:i nnote: eexpanded from macro 'absl_nullable' 
absl  _257n | u#ldleafbilnee  _aNbuslll_anbullel
a      b| l                      ^e
 _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2loop.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2loop.h::2932:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/base/logging.h1017::2151:
:In file included from  /usr/local/clang/include/absl/log/check.h:warning: 37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
 /usr/local/clang/include/absl/log/internal/check_op.h1017: | 515 : 47 :  vwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
d s  e515t | _ c o r dczo_nisntf oc(hcaorr*d _aibnstle_rnnualll:a:bCloer dsz1I,n fcoo*n satb sclh_anro*n naublsll _cnourldlza_bilnef os)2 ,{

            | |                                               ^                                                  ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257241::2322::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     cons#td ecfhianre*  aabbssll__nnoonnnnuullll  _eNxopnrntuelxlt
)      ;| 
                     ^      
|                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckIn file included from ss2/s2lax_polygon_shape.cct:r18c:
aIn file included from s../src/s2/s2lax_polygon_shape.he:c31m:
pIn file included from t../src/s2/encoded_s2point_vector.hr:u29e:
IIn file included from m../src/s2/s2coder.hp:l23(:

In file included from       /usr/local/clang/include/absl/status/status.h| :            ^67
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::25729::
23/usr/local/clang/include/absl/strings/cord.h:: 1049note: :expanded from macro 'absl_nullable'56
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def i1049n | e   asbtsalt_incu lbloaobll eG e_tNFullaltaAbulxe(
a      b| s                      ^l
::coIn file included from rs2/s2loop.ccd:_18i:
nIn file included from t../src/s2/s2loop.he:r32n:
aIn file included from l../src/s2/base/logging.h:::21C:
oIn file included from r/usr/local/clang/include/absl/log/check.hd:R37e:
pIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_518n:o17n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 re  p518, | 
        |                                                         ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneuflilnaeb laeb ssl1_,n ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^u
llable s2,
      | In file included from                 ^s2/s2lax_polygon_shape.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2lax_polygon_shape.h257::3123:
:In file included from  ../src/s2/encoded_s2point_vector.hnote: :expanded from macro 'absl_nullable'29
:
In file included from   257 | #define absl_nullable _Nullab../src/s2/s2coder.hl:e23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                      ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050In file included from :s2/s2loop.cc45::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2loop.h
:32:
In file included from ../src/s2/base/logging.h: 211050:
 | In file included from  /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h: 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 518 : 47 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      518  |          c o nasbts lc:h:asrt*r ianbgs_lv_ineuwl*l aabblsel _sn1o,n ncuolnls tf rcahgamre*n ta)b;s
l      _| n                                            ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :s 2note: ,expanded from macro 'absl_nonnull'

      |                                                 ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2lax_polygon_shape.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2lax_polygon_shape.h37::
31In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/encoded_s2point_vector.h21::
29/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 519../src/s2/s2coder.h::1723::
 In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h519: | 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1054c:o37n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har *1054  | a b s l _ n oanbnsull:l: ceoxrpdr_tienxtte)r;n
a      l| :                ^:
C/usr/local/clang/include/absl/base/nullability.ho:r241d:R22e:p *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  raebps,l
_      n| o                                    ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_noIn file included from ns2/s2loop.ccn:u18l:
lIn file included from  ../src/s2/s2loop.h_:N32o:
nIn file included from n../src/s2/base/logging.hu:l21l:

In file included from       /usr/local/clang/include/absl/log/check.h| :                     ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullabIn file included from ls2/s2lax_polygon_shape.cce: 18C:
hIn file included from e../src/s2/s2lax_polygon_shape.hc:k31s:
tIn file included from r../src/s2/encoded_s2point_vector.hc:a29s:
eIn file included from c../src/s2/s2coder.hm:p23f:
aIn file included from l/usr/local/clang/include/absl/status/status.hs:e67I:
mIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.hl:(29
:
      /usr/local/clang/include/absl/strings/cord.h| :            ^1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char*In file included from  s2/s2lax_polyline_shape.cca:b18s:
lIn file included from _../src/s2/s2lax_polyline_shape.hn:u27l:
lIn file included from a../src/s2/util/coding/coder.hb:l36e:
 In file included from s../src/s2/base/casts.h1:,36 :
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from c/usr/local/clang/include/absl/log/check.hh:a37r:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n504u:l1l:a bwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 s/usr/local/clang/include/absl/log/internal/check_op.h2:,497
:      32| :                ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/base/nullability.h
:257:23:   note: 497expanded from macro 'absl_nullable' | 
    i257n | l#idneef icnoen satbesxlp_rn uclolnasbtl ec h_aNru*l laabbslle_
n      u| l                      ^l
able name##IIn file included from ms2/s2loop.ccp:l18(:
 In file included from  ../src/s2/s2loop.h : 32 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21\:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 521                               ^:
47: /usr/local/clang/include/absl/base/nullability.h:warning: 257type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
23:   note: 521expanded from macro 'absl_nullable' | 
     257  | c#odnesfti nceh aarb*s la_bnsull_lnaublllea b_lNeu lsl1a,b lceo
n      s| t                      ^ 
char* abIn file included from ss2/s2lax_polyline_shape.ccl:_18n:
uIn file included from l../src/s2/s2lax_polyline_shape.hl:a27b:
lIn file included from e../src/s2/util/coding/coder.h :s362:
,In file included from 
../src/s2/base/casts.h      :| 36                                              ^:

In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21257:
:In file included from 23/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:  21257:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d504e:f1i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_498n:u35l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
e _  N498u | l l a b l e 
i      n| t                      ^ 
v1, inIn file included from ts2/s2loop.cc :v182:
,In file included from  ../src/s2/s2loop.hc:o32n:
sIn file included from t../src/s2/base/logging.h :c21:
hIn file included from a/usr/local/clang/include/absl/log/check.hr:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n522n:u17l:l  warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
prt  e522x | t )   {  c o n s t   c h a r *   a b s l _\n
o      n| n                                  ^u
ll/usr/local/clang/include/absl/base/nullability.h :e241x:p22r:t enote: xexpanded from macro 'absl_nonnull't
);  
241       | | #                ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMIn file included from Ps2/s2latlng_rect_bounder.ccL:(18C:
hIn file included from e../src/s2/s2latlng_rect_bounder.hc:k21_:
LIn file included from T../src/s2/s2latlng.h,: 31<:
)In file included from 
../src/s2/r2.h      :| 22^:

In file included from ../src/s2/util/math/vector.h:36/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 488../src/s2/base/logging.h::3222::
 In file included from /usr/local/clang/include/absl/log/log.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20  :
488In file included from  | /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63i:
n/usr/local/clang/include/absl/log/internal/vlog_config.hl:i119n:e15 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
tex  p119r |   c ocnosnts tc hcahra*r *a basbls_ln_unlolnanbullel  ncaomnes#t# Ifmiplle(_ ; 
        |                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    \241
 |       #| d                               ^e
fine/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #_dNeofninnuel la
b      s| l                     ^_
nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSit../src/s2/util/coding/coder.he*: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hv:)In file included from 37;s2/s2lax_polygon_shape.cc:

:In file included from       18/usr/local/clang/include/absl/log/internal/check_impl.h| :
                                    ^:In file included from 
21../src/s2/s2lax_polygon_shape.h:
:31:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.hIn file included from ::../src/s2/encoded_s2point_vector.h505241::1:29::
 In file included from ../src/s2/s2coder.hwarning: :23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.h::48929::
47:/usr/local/clang/include/absl/strings/cord.h :1140note: :22expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'49:
:  note: warning: expanded from macro 'absl_nonnull'  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
489
 |    241   |  1140 # |     c o n s t   T 1 &   v 1 ,   c o n s t   T 2 &   v 2 ,   c oCnosrtd RcehpaErx*t earbnsall_*n oanbnsull_ln oenxnpurltle xrte)p ){; 
        |                                                  ^ 
\
      | /usr/local/clang/include/absl/base/nullability.h                                              ^:
241:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dabsl_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2lax_polyline_shape.ccl:l18 :
_In file included from N../src/s2/s2lax_polyline_shape.ho:n27n:
uIn file included from l../src/s2/util/coding/coder.hl:
36      :
| In file included from                      ^../src/s2/base/casts.h
:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2lax_polygon_shape.cc :a18b:
sIn file included from l../src/s2/s2lax_polygon_shape.h_:n31u:
lIn file included from l../src/s2/encoded_s2point_vector.ha:b29l:
eIn file included from  ../src/s2/s2coder.h_:N23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
eIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                      ^:

/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2lax_polyline_shape.cc: 181159:
 | In file included from i../src/s2/s2lax_polyline_shape.hn:l27i:
nIn file included from e../src/s2/util/coding/coder.h :C36o:
rIn file included from d../src/s2/base/casts.hR:e36p:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
N/usr/local/clang/include/absl/log/internal/check_op.he:w505E:x1t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
lR/usr/local/clang/include/absl/log/internal/check_op.he:p498(:
35      :|                  ^
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
/usr/local/clang/include/absl/base/nullability.h:241:22  :498  | note:  expanded from macro 'absl_nonnull' 
     241  | i#ndte fvi1n,e  ianbts lv_2n,o ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
onnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |           In file included from  s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h : 32 :
 In file included from  ../src/s2/base/logging.h : 22 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h :C63o:
r/usr/local/clang/include/absl/log/internal/vlog_config.hd:R63e:p43*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_nu   l63l | a b leex prleipc)i
t       | c                                              ^o
nst/usr/local/clang/include/absl/base/nullability.he:x257p:r23 :V Lnote: oexpanded from macro 'absl_nullable'g
Si  t257e | (#cdoenfsitn ec haabrs*l _anbuslll_anbolnen u_lNlu lfl)a
b      l| e                                          ^

      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:31:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);In file included from 
s2/s2loop.cc      :| 18              ^:

In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/base/nullability.h::32257:
:In file included from 23../src/s2/base/logging.h:: 22note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/log.h:  209257:
 | In file included from #/usr/local/clang/include/absl/log/internal/log_impl.hd:e20f:
iIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.he: 63a:
b/usr/local/clang/include/absl/log/internal/vlog_config.hs:l119_:n15u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le   _119N | u l lcaobnlset
       c| h                      ^a
r* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2lax_polyline_shape.ccn:e18 :
aIn file included from b../src/s2/s2lax_polyline_shape.hs:l27_:
nIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h :_36N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullableIn file included from  s2/s2lax_polygon_shape.ccn:a18m:
eIn file included from #../src/s2/s2lax_polygon_shape.h#:I31m:
pIn file included from l../src/s2/encoded_s2point_vector.h(: 29 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h :\1230
:      20| :                               ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23:  1230 | note: iexpanded from macro 'absl_nullable'n
li  n257e |  #cdoenfsitn ec haabrs*l _anbuslll_anbullel a_bNluel lCaobrlde:
:      I| n                      ^l
ineRep::data(In file included from )s2/s2lax_polyline_shape.cc :c18o:
nIn file included from s../src/s2/s2lax_polyline_shape.ht: 27{:

In file included from       ../src/s2/util/coding/coder.h| :                   ^36
:
In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.h::36257:
:In file included from 23../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 257/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i506n:e1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/log/internal/check_op.hu:l489l:a47b:l enote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
Nul  l489a | b l e 
        |                        ^c
onst T1& v1, const T2& v2, const char* absl_nonnull exprtIn file included from es2/s2lax_polygon_shape.ccx:t18):
 In file included from {../src/s2/s2lax_polygon_shape.h : 31 :
 In file included from  ../src/s2/encoded_s2point_vector.h\:
29      :
| In file included from                                               ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/strings/cord.h:  1234241: | 20#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a b1234s | li_nnloinnneu lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1:In file included from  s2/s2lax_polygon_shape.cc:warning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2lax_polygon_shape.h:/usr/local/clang/include/absl/log/internal/check_op.h31::
497In file included from :../src/s2/encoded_s2point_vector.h32::29 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
23:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
497In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29i:
n/usr/local/clang/include/absl/strings/cord.hl:i1239n:e38 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
texp r1239  | cionnlsitn ec haabrs*l :a:bcsolr_dn_uilnltaebrlnea ln:a:mCeo#r#dIRmeppl*(  a b s l _ n o n n u l l   C o r d : :\I
n      l| i                               ^n
eR/usr/local/clang/include/absl/base/nullability.he:p257:::23a:s _note: texpanded from macro 'absl_nullable'r
ee  (257) | 
#      d| e                                     ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _NoIn file included from ns2/s2lax_polyline_shape.ccn:u18l:
lIn file included from 
../src/s2/s2lax_polyline_shape.h      :| 27                     ^:

In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       iIn file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nt v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  In file included from 257s2/s2loop.cc | :#18d:
eIn file included from f../src/s2/s2loop.hi:n32e:
 In file included from a../src/s2/base/logging.hb:s22l:
_In file included from n/usr/local/clang/include/absl/log/log.hu:l209l:
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hl:e20 :
_In file included from N/usr/local/clang/include/absl/log/absl_vlog_is_on.hu:l63l:
ab/usr/local/clang/include/absl/log/internal/vlog_config.hl:e133
:      37| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2lax_polygon_shape.ccn:u18l:
lIn file included from 
../src/s2/s2lax_polygon_shape.h      :| 31                     ^:

In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CIn file included from os2/s2loop.ccr:d18R:
eIn file included from p../src/s2/s2loop.h*: 32a:
bIn file included from s../src/s2/base/logging.hl:_22n:
uIn file included from l/usr/local/clang/include/absl/log/log.hl:a209b:
lIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.h :o20l:
dIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hr:e63p:
,/usr/local/clang/include/absl/log/internal/vlog_config.h
:      157| :                                                       ^11
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257
:23:   note: 157expanded from macro 'absl_nullable' | 
VL  o257g | S#idteef*i naeb salb_snlu_lnlualbllaeb SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
le _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2lax_polyline_shape.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1829:
:
In file included from ../src/s2/s2lax_polyline_shape.h/usr/local/clang/include/absl/strings/cord.h::271302:
:In file included from 50../src/s2/util/coding/coder.h:: 36:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/casts.h
:36:
In file included from ../src/s2/base/logging.h: 211302:
 | In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 507 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 497 : 32 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
       497  |      i nCloirndeR ecpo*n satbesxlp_rn ocnonnusltl  crheapr,*
       a| b                                                 ^s
l_nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e  note: nexpanded from macro 'absl_nonnull'a
me  #241# | I#mdpelf(i n e   a b s l _ n o n n u l l   _ N o\n
n      u| l                               ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 | In file included from  s2/s2lax_polygon_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polygon_shape.hi:n31t:
 In file included from v../src/s2/encoded_s2point_vector.h1:,29 :
iIn file included from n../src/s2/s2coder.ht: 23v:
2In file included from ,/usr/local/clang/include/absl/status/status.h :c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29c:
h/usr/local/clang/include/absl/strings/cord.ha:r1312*: 38a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nonn u1312l | li nelxipnret eaxbts)l :{: c o r d _ i n t e r n a l : : C o\r
d      R| e                                  ^p
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #Cdoerfdi:n:eI nalbisnle_Rneopn:n:ucllle a_rN(o)n n{u
l      l| 
                                     ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheIn file included from cs2/s2lax_polygon_shape.cck:s18t:
rIn file included from c../src/s2/s2lax_polygon_shape.ha:s31e:
cIn file included from m../src/s2/encoded_s2point_vector.hp:t29r:
uIn file included from e../src/s2/s2coder.hI:m23p:
lIn file included from (/usr/local/clang/include/absl/status/status.h
:      67| :
            ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/strings/cord.h::231505:: 41:note:  expanded from macro 'absl_nullable'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  257 | #d e1505f | iinnel ianbes lv_oniudl lCaobrlde: :_CNouplylTaobAlrer
a      y| I                      ^m
pl(chIn file included from as2/s2lax_polyline_shape.ccr:*18 :
aIn file included from b../src/s2/s2lax_polyline_shape.hs:l27_:
nIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h :d36s:
tIn file included from )../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37{:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                        ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:518:/usr/local/clang/include/absl/base/nullability.h17::241 :22warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  518 |    241  |  # dceofnisnte  cahbasrl*_ naobnsnlu_lnlu l_lNaobnlneu lsl1
,       | c                     ^o
nst char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from In file included from s2/s2lax_polyline_shape.cc../src/s2/s2lax_polygon_shape.h::1831:
:
In file included from In file included from ../src/s2/s2lax_polyline_shape.h../src/s2/encoded_s2point_vector.h::2729:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/status/status.h::3667:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::371514:
:In file included from 29/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
518:47:  1514warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     c518o | r d _ i nctoenrsnta lc:h:aCro*r daRbespl*_ naublslla_bnloen nsu1l,l  ctorneset)  c{h
a      r| *                            ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241s | 2#,d
e      f| i                                              ^n
e /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | _#Ndoenfniunlel 
a      b| s                     ^l
_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2lax_polygon_shape.ccn:e18 :
aIn file included from b../src/s2/s2lax_polygon_shape.hs:l31_:
nIn file included from u../src/s2/encoded_s2point_vector.hl:l29a:
bIn file included from l../src/s2/s2coder.he: 23_:
NIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he:
29      :
| /usr/local/clang/include/absl/strings/cord.h                      ^:
1525:29: In file included from warning: s2/s2lax_polyline_shape.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2lax_polyline_shape.h: 271525:
 | In file included from  ../src/s2/util/coding/coder.h : 36 :
cIn file included from o../src/s2/base/casts.hr:d36_:
iIn file included from n../src/s2/base/logging.ht:e21r:
nIn file included from a/usr/local/clang/include/absl/log/check.hl::37::
CIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:d21R:
e/usr/local/clang/include/absl/log/internal/check_op.hp:*521 :a17b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u521l | l   t r eceo)n s{t
       c| h                            ^a
r* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #sd1e,f icnoen satb sclh_anro*n naublsll __nNuolnlnaubllle
       s| 2                     ^,

      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nIn file included from us2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
llable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:27:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline voIn file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34i:
dIn file included from  /usr/local/clang/include/absl/log/log.hS:t209o:
rIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.h1:620(:
vIn file included from o/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:d63*:
 /usr/local/clang/include/absl/log/internal/vlog_config.ha:b158s:l15_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull   158p | ,   u i nVtL1o6g_Sti tve)*  {a
b      s| l                          ^_
nulla/usr/local/clang/include/absl/base/nullability.hb:l241e: 22v:) ;note: 
expanded from macro 'absl_nonnull'      
|               ^
  241/usr/local/clang/include/absl/base/nullability.h | :#257d:e23f:i nnote: eexpanded from macro 'absl_nullable' 
ab  s257l | _#ndoenfniunlel  a_bNsoln_nnuullll
a      b| l                     ^e
 _Nullable
      |                       ^
In file included from In file included from s2/s2lax_polyline_shape.ccs2/s2lax_polygon_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2lax_polyline_shape.h../src/s2/s2lax_polygon_shape.h::2731:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/encoded_s2point_vector.h::4029:
:
In file included from In file included from ../src/s2/util/coding/varint.h../src/s2/s2coder.h::4423:
:
In file included from ../src/s2/util/bits/bits.h/usr/local/clang/include/absl/status/status.h::21725:
:In file included from 38/usr/local/clang/include/absl/numeric/bits.h:: 52:
warning: /usr/local/clang/include/absl/base/internal/endian.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
258:36:   warning: 725 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 st  a258t | iicn lsitnaet uusi_nitn3t2e_rtn aLlo:a:dS3t2a(tcuosnRsetp *v oaibds*l _anbosnln_unloln nPurlelp apr)e T{o
M      o| d                                   ^i
fy(/usr/local/clang/include/absl/base/nullability.h
:      241| :                                     ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from In file included from ../src/s2/s2lax_polygon_shape.hs2/s2lax_polyline_shape.cc::3118:
:
In file included from In file included from ../src/s2/encoded_s2point_vector.h../src/s2/s2lax_polyline_shape.h::2927:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/coding/coder.h::2340:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/util/coding/varint.h::73244::
29In file included from :../src/s2/util/bits/bits.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/numeric/bits.h:52:
  /usr/local/clang/include/absl/base/internal/endian.h732: | 262 : 27s:t awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
c c  o262n | sitn lsitnde: :vsotirdi nSgt*o raeb3s2l(_vnooindn*u lalb sElm_pntoynSnturliln gp(,) ;u
i      n| t                            ^3
2_/usr/local/clang/include/absl/base/nullability.ht: 241v:)22 :{ 
note:       expanded from macro 'absl_nonnull'| 
                          ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const In file included from ss2/s2lax_polyline_shape.cct:d18::
:In file included from s../src/s2/s2lax_polyline_shape.ht:r27i:
nIn file included from g../src/s2/util/coding/coder.h*: 40a:
bIn file included from s../src/s2/util/coding/varint.hl:_44n:
oIn file included from n../src/s2/util/bits/bits.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/numeric/bits.hM:o52v:
e/usr/local/clang/include/absl/base/internal/endian.hd:F266r:o36m:S twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ng(  )266; | 
i      n| l                            ^i
ne/usr/local/clang/include/absl/base/nullability.h :u241i:n22t:6 4note: _expanded from macro 'absl_nonnull't
 L  o241a | d#6d4e(fcionnes ta bvsoli_dn*o nanbuslll_ n_oNnonnunlull lp
)       | {                     ^

      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   statiIn file included from cs2/s2lax_polyline_shape.cc :u18i:
nIn file included from t../src/s2/s2lax_polyline_shape.hp:t27r:
_In file included from t../src/s2/util/coding/coder.h :P40o:
iIn file included from n../src/s2/util/coding/varint.ht:e44r:
TIn file included from o../src/s2/util/bits/bits.hR:e21p:
(In file included from s/usr/local/clang/include/absl/numeric/bits.ht:a52t:
u/usr/local/clang/include/absl/base/internal/endian.hs:_270i:n27t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l::  S270t | aitnulsiRneep *v oaibds lS_tnoornen6u4l(lv ori)d;*
       a| b                                                            ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'p
,   u241i | n#td6e4f_itn ev )a b{s
l      _| n                          ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnullIn file included from  s2/s2lax_polygon_shape.cc_:N18o:
nIn file included from n../src/s2/s2lax_polygon_shape.hu:l31l:

In file included from       ../src/s2/encoded_s2point_vector.h| :                     ^29
:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsIn file included from us2/s2lax_polygon_shape.ccr:e18C:
oIn file included from ../src/s2/s2lax_polygon_shape.hn:s31t:
eIn file included from x../src/s2/encoded_s2point_vector.hp:r31(:
fIn file included from o../src/s2/s2shape.hr:m27a:
tIn file included from )../src/s2/s2pointutil.h,:
27      |           ^
:
../src/s2/util/math/matrix3x3.h:276:5: warning: /usr/local/clang/include/absl/strings/internal/str_format/parser.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
229:11: warning:   'enable_if' is a clang extension [-Wgcc-compat]276
 |      229  | S 2 _ C H E C K _ N Ee(ndaebtl,e _ViTfy(pset(r0_)f)o r<m<a t"_ iCnatne'rtn ailn:v:eVraslei.d FDoertmeartmIimnpaln<tC .=. .0>.("f;o
r      m| a    ^t
),
      | ../src/s2/base/logging.h          ^:
37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:31:
In file included from ../src/s2/encoded_s2point_vector.h:31:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2loop_measures.cc/usr/local/clang/include/absl/synchronization/mutex.h::18490:
:In file included from 13../src/s2/s2loop_measures.h:: 33:
warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
  In file included from 490../src/s2/s2point.h | : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36v:
oIn file included from i../src/s2/base/casts.hd:*34 :
aIn file included from b/usr/local/clang/include/absl/log/log.hs:l209_:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.hl:l22a:
bIn file included from i/usr/local/clang/include/absl/log/internal/log_message.hl:i53t:
y_/usr/local/clang/include/absl/types/source_location.hu:n113k:n19o:w nwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
rg);
        113|  |             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 :c34o:n snote: texpanded from macro 'absl_nullability_unknown' 
ch  a289r | *# daebfsiln_en oanbnsull_ln uflillaeb_inlaimtey _=u n_k_nbouwinl t_iNnu_lFlI_LuEn(s)p)e c{i
f      i| e                  ^d

      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2latlng_rect_bounder.ccd:e18f:
iIn file included from n../src/s2/s2latlng_rect_bounder.he: 21a:
bIn file included from s../src/s2/s2latlng.hl:_32n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(In file included from cs2/s2loop_measures.cco:n18s:
tIn file included from  ../src/s2/s2loop_measures.hc:h33a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n25u:
lIn file included from l../src/s2/util/coding/coder.ha:b36l:
eIn file included from  ../src/s2/base/casts.hn:a34m:
eIn file included from )/usr/local/clang/include/absl/log/log.h;:
209      :
| In file included from                                   ^/usr/local/clang/include/absl/log/internal/log_impl.h
:22/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/internal/log_message.h::2353::
 /usr/local/clang/include/absl/types/source_location.hnote: :expanded from macro 'absl_nullable'133
:25  :257  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n133e |   a bcsoln_sntuelxlparb lceo n_sNtu lclhaabrl*e 
a      b| s                      ^l
_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2latlng_rect_bounder.cce: 18a:
bIn file included from s../src/s2/s2latlng_rect_bounder.hl:_21n:
oIn file included from n../src/s2/s2latlng.hn:u32l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 549s2/s2loop_measures.cc::4018::
 In file included from ../src/s2/s2loop_measures.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]33
:
In file included from ../src/s2/s1angle.h:  28549:
 | In file included from ../src/s2/s2point.h : 25s:
tIn file included from a../src/s2/util/coding/coder.ht:i36c:
 In file included from v../src/s2/base/casts.ho:i34d:
 In file included from I/usr/local/clang/include/absl/log/log.hn:c209r:
eIn file included from m/usr/local/clang/include/absl/log/internal/log_impl.he:n22t:
SIn file included from y/usr/local/clang/include/absl/log/internal/log_message.hn:c53h:
S/usr/local/clang/include/absl/types/source_location.he:m142(:M25u:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s142l | _ n ocnonnusltle xmpur, 
c      o| n                                       ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  absl_note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dfeufnicntei oanb_snla_mneo(n)n ucloln s_tN onnoneuxlcle
p      t|                       ^{

      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2latlng_rect_bounder.cc  :24118 | :
#In file included from d../src/s2/s2latlng_rect_bounder.he:f21i:
nIn file included from e../src/s2/s2latlng.h :a32b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                     ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |       In file included from  s2/s2loop_measures.cc : 18 :
 In file included from  ../src/s2/s2loop_measures.h    : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36b:
aIn file included from s../src/s2/base/casts.he:_34i:
nIn file included from t/usr/local/clang/include/absl/log/log.he:r209n:
aIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h:::22P:
eIn file included from r/usr/local/clang/include/absl/log/internal/log_message.hT:h53r:
e/usr/local/clang/include/absl/types/source_location.ha:d150S:y40n:c hwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _150n | o n n u l l   w ) ; 
        |                                                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_ Nfoinlneu_lnla
m      e| )                     ^

      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2latlng_rect_bounder.ccf:i18n:
eIn file included from  ../src/s2/s2latlng_rect_bounder.ha:b21s:
lIn file included from _../src/s2/s2latlng.hn:o32n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DeIn file included from cs2/s2loop_measures.ccr:e18m:
eIn file included from n../src/s2/s2loop_measures.ht:S33y:
nIn file included from c../src/s2/s1angle.hh:S28e:
mIn file included from (../src/s2/s2point.hM:u25t:
eIn file included from x../src/s2/util/coding/coder.h*: 36a:
bIn file included from s../src/s2/base/casts.hl:_34n:
oIn file included from n/usr/local/clang/include/absl/log/log.hn:u209l:
lIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hm:u22,:

In file included from       /usr/local/clang/include/absl/log/internal/log_message.h| :                                       ^53
:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/types/source_location.h::241165::2215::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #165d | e f icnoen satb sclh_anro*n naublsll __nNoonnnnuullll 
f      i| l                     ^e
_name_ =In file included from  s2/s2latlng_rect_bounder.cc":"18;:

In file included from       ../src/s2/s2latlng_rect_bounder.h| :              ^21
:
In file included from ../src/s2/s2latlng.h/usr/local/clang/include/absl/base/nullability.h::32241:
:In file included from 22../src/s2/s1angle.h:: 28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n552u:l64l:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:In file included from 18s2/s2latlng_rect_bounder.cc:
:In file included from 18../src/s2/s2loop_measures.h:
:In file included from 33../src/s2/s2latlng_rect_bounder.h:
:In file included from 21../src/s2/s1angle.h:
:In file included from 28../src/s2/s2latlng.h:
:In file included from 32../src/s2/s2point.h:
:In file included from 25../src/s2/s1angle.h:
:In file included from 28../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/s2point.h:
:In file included from 27../src/s2/base/casts.h:
:In file included from 34../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/log.h:
:In file included from 209/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 71/usr/local/clang/include/absl/strings/cord.h::2694::
 In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:   55871: | 35 : Log Mwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sag  e558( | c o nbsoto lc hLaorc*k SalboswlW_intohnDneualdll ifniel(eM,u Hionwt  albisnle_,n
o      n| n                         ^u
ll /usr/local/clang/include/absl/base/nullability.hh:o241w:,22
:       | note:                                   ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2loop_measures.cc559: | 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.hc:o209n:
sIn file included from t/usr/local/clang/include/absl/log/internal/log_impl.h :C22o:
n/usr/local/clang/include/absl/log/internal/log_message.hd:i78t:i26o:n *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl   _78n | u l lLaobglMee scsoangde,(
c      o| n                                             ^s
t /usr/local/clang/include/absl/base/nullability.hc:h257a:r23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli nfei laeb,s li_nntu lllianbel,e
       _| N                         ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22
:       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnulIn file included from ls2/s2latlng_rect_bounder.cc :_18N:
oIn file included from n../src/s2/s2latlng_rect_bounder.hn:u21l:
lIn file included from 
../src/s2/s2latlng.h      :| 32                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2loop_measures.cc  :56218 | :
 In file included from  ../src/s2/s2loop_measures.hv:o33i:
dIn file included from  ../src/s2/s1angle.hL:o28c:
kIn file included from S../src/s2/s2point.hl:o25w:
(In file included from M../src/s2/util/coding/coder.hu:H36o:
wIn file included from  ../src/s2/base/casts.ha:b34s:
lIn file included from _/usr/local/clang/include/absl/log/log.hn:o209n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.hl:l22 :
h/usr/local/clang/include/absl/log/internal/log_message.ho:w80,: 26c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 Co   n80d | i t iLoong*M easbssalg_en(uclolnasbtl ec hcaorn* absld_,n
o      n| n                      ^u
ll/usr/local/clang/include/absl/base/nullability.h :f241i:l22e:,  note: iexpanded from macro 'absl_nonnull'n
t   l241i | n#ed,e
f      i| n                         ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull In file included from _s2/s2latlng_rect_bounder.ccN:o18n:
nIn file included from u../src/s2/s2latlng_rect_bounder.hl:l21
:
      In file included from | ../src/s2/s2latlng.h                     ^:
32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562In file included from :s2/s2loop_measures.cc58::18 :
In file included from warning: ../src/s2/s2loop_measures.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
33:
In file included from ../src/s2/s1angle.h  :56228 | :
 In file included from  ../src/s2/s2point.hv:o25i:
dIn file included from  ../src/s2/util/coding/coder.hL:o36c:
kIn file included from S../src/s2/base/casts.hl:o34w:
(In file included from M/usr/local/clang/include/absl/log/log.hu:H209o:
wIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.ha:b22s:
l/usr/local/clang/include/absl/log/internal/log_message.h_:n82o:n26n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
how   ,82  | c o nLsotg MCeosnsdaigtei(ocno*n satb sclh_anru*l laabbslle_ ncoonnndu,l
l       | f                                                         ^i
le/usr/local/clang/include/absl/base/nullability.h,: 257i:n23t:  lnote: iexpanded from macro 'absl_nullable'n
e,  
257       | | #                         ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef i_nNeu lalbasbll_en
o      n| n                      ^u
ll _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2loop_measures.ccexpanded from macro 'absl_nullable':
18:
  In file included from 257../src/s2/s2loop_measures.h | :#33d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.hu:l36l:
aIn file included from b../src/s2/base/casts.hl:e34 :
_In file included from N/usr/local/clang/include/absl/log/log.hu:l209l:
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hl:e22
:
      | /usr/local/clang/include/absl/log/internal/log_message.h                      ^:
119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull In file included from ss2/s2latlng_rect_bounder.cci:n18k:
)In file included from ;../src/s2/s2latlng_rect_bounder.h
:      21| :
                                        ^In file included from 
../src/s2/s2latlng.h:32/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
  In file included from 241../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31_:
N/usr/local/clang/include/absl/synchronization/mutex.ho:n576n:u49l:l 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
  576 |   void TryRemove(bIn file included from as2/s2loop_measures.ccs:e18_:
iIn file included from n../src/s2/s2loop_measures.ht:e33r:
nIn file included from a../src/s2/s1angle.hl::28::
PIn file included from e../src/s2/s2point.hr:T25h:
rIn file included from e../src/s2/util/coding/coder.ha:d36S:
yIn file included from n../src/s2/base/casts.hc:h34*:
 In file included from a/usr/local/clang/include/absl/log/log.hb:s209l:
_In file included from n/usr/local/clang/include/absl/log/internal/log_impl.ho:n22n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l121 :s41):; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                ^

/usr/local/clang/include/absl/base/nullability.h  :121241 | : 22 :L onote: gexpanded from macro 'absl_nonnull'M
es  s241a | g#ed&e fTionSei nakbOsnll_yn(oanbnsull:l: L_oNgoSninnukl*l 
a      b| s                     ^l
_nonnull sink);
      |                                         ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2latlng_rect_bounder.cc::24118::
22In file included from :../src/s2/s2latlng_rect_bounder.h :note: 21expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2latlng.h  :24132 | :
#In file included from d../src/s2/s1angle.he:f28i:
nIn file included from e../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                     ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2loop_measures.ccl:l18
:
      In file included from | ../src/s2/s2loop_measures.h                     ^:
33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34In file included from :
s2/s2latlng_rect_bounder.ccIn file included from :/usr/local/clang/include/absl/log/log.h18::
209In file included from :
../src/s2/s2latlng_rect_bounder.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h21::
22In file included from :
../src/s2/s2latlng.h/usr/local/clang/include/absl/log/internal/log_message.h::32158:
:In file included from 32../src/s2/s1angle.h:: 28warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
  In file included from 158../src/s2/s2coder.h | : 23 :
LIn file included from o/usr/local/clang/include/absl/status/status.hg:M67e:
sIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ha:g29e:
&In file included from  /usr/local/clang/include/absl/strings/cord.ho:p94e:
rIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.ht:o31r:
</usr/local/clang/include/absl/synchronization/mutex.h<:(580v:o34i:d *warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _580n | u l lbaabslee_ i nvt)e r{n
a      l| :                               ^:
Pe/usr/local/clang/include/absl/base/nullability.hr:T257h:r23e:a dnote: Sexpanded from macro 'absl_nullable'y
nc  h257* |  #adbesfli_nneu lalbasbll_en uWlalkaebulpe( 
_      N| u                                 ^l
la/usr/local/clang/include/absl/base/nullability.hb:l257e:
23      :|                        ^
note: expanded from macro 'absl_nullable'
  257 | #define absl_nulIn file included from ls2/s2loop_measures.cca:b18l:
eIn file included from  ../src/s2/s2loop_measures.h_:N33u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from 
../src/s2/s2point.h      :| 25                      ^:

In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34In file included from :
s2/s2latlng_rect_bounder.ccIn file included from :/usr/local/clang/include/absl/log/log.h18::
209In file included from :
../src/s2/s2latlng_rect_bounder.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h21::
22In file included from :
../src/s2/s2latlng.h/usr/local/clang/include/absl/log/internal/log_message.h::32161:
:In file included from 38../src/s2/s1angle.h:: 28:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from   ../src/s2/s2coder.h161: | 23 :
 In file included from L/usr/local/clang/include/absl/status/status.ho:g67M:
eIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hs:a29g:
eIn file included from &/usr/local/clang/include/absl/strings/cord.h :o94p:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.ha:t31o:
r/usr/local/clang/include/absl/synchronization/mutex.h<:<581(:c38o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
voi  d581* |   a b s l _ nbualslea_bilnet e rvn)a l{:
:      P| e                                     ^r
Th/usr/local/clang/include/absl/base/nullability.hr:e257a:d23S:y nnote: cexpanded from macro 'absl_nullable'h
*   a257b | s#ld_enfoinnneu lalb swl)_;n
u      l| l                                     ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241_:N22u:l lnote: aexpanded from macro 'absl_nonnull'b
le  
241       | | #                      ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void In file included from Ts2/s2loop_measures.ccr:a18n:
sIn file included from (../src/s2/s2loop_measures.hM:u33H:
oIn file included from w../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:
 In file included from h../src/s2/base/casts.ho:w34):
;In file included from  /usr/local/clang/include/absl/log/log.h :/209/:
 In file included from u/usr/local/clang/include/absl/log/internal/log_impl.hs:e22d:
 /usr/local/clang/include/absl/log/internal/log_message.hf:o179r: 35C:o nwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]V
ar-  >179M | u t eLxo gtMreasnssafgeer&
       o| p                   ^e
ra/usr/local/clang/include/absl/base/nullability.ht:o241r:<22<:( wnote: cexpanded from macro 'absl_nonnull'h
ar  _241t | *# daebfsiln_en ualblsalb_lneo nvn)u;l
l       | _                                  ^N
on/usr/local/clang/include/absl/base/nullability.hn:u257l:l23
:       | note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nuIn file included from ls2/s2latlng_rect_bounder.ccl:a18b:
lIn file included from e../src/s2/s2latlng_rect_bounder.h :_21N:
uIn file included from l../src/s2/s2latlng.hl:a32b:
lIn file included from e../src/s2/s1angle.h
:      28| :
                      ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal:In file included from :s2/s2loop_measures.ccP:e18r:
TIn file included from h../src/s2/s2loop_measures.hr:e33a:
dIn file included from S../src/s2/s1angle.hy:n28c:
hIn file included from *../src/s2/s2point.h :a25b:
sIn file included from l../src/s2/util/coding/coder.h_:n36o:
nIn file included from n../src/s2/base/casts.hu:l34l:

In file included from       /usr/local/clang/include/absl/log/log.h| :                                          ^209
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_impl.h::24122::
22/usr/local/clang/include/absl/log/internal/log_message.h:: 190note: :expanded from macro 'absl_nonnull'42
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i190n | e   aLbosglM_ensosnanguel&l  o_pNeornantuolrl<
<      (| s                     ^t
d::ostream& (*abslIn file included from _s2/s2latlng_rect_bounder.ccn:o18n:
nIn file included from u../src/s2/s2latlng_rect_bounder.hl:l21 :
mIn file included from )../src/s2/s2latlng.h(:s32t:
dIn file included from :../src/s2/s1angle.h::o28s:
tIn file included from r../src/s2/s2point.he:a27m:
&In file included from  ../src/s2/s2coder.ho:s23):
)In file included from ;/usr/local/clang/include/absl/status/status.h
:      67| :
                                         ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2294::
 In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 590#:d40e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 ab  s590l | _ n oenxnpullilc i_tN oMnuntuelxl(
c      o| n                     ^s
t volatile Mutex* absl_nullable /*ignorIn file included from es2/s2loop_measures.ccd:*18/:
)In file included from  ../src/s2/s2loop_measures.h{:}33
:
      In file included from | ../src/s2/s1angle.h                                       ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::25725::
23In file included from :../src/s2/util/coding/coder.h :note: 36expanded from macro 'absl_nullable':

In file included from ../src/s2/base/casts.h  :25734 | :
#In file included from d/usr/local/clang/include/absl/log/log.he:f209i:
nIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.h :a22b:
s/usr/local/clang/include/absl/log/internal/log_message.hl:_191n:u43l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e _N  u191l | l a bLloeg
M      e| s                      ^s
age& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2loop_measures.cc801: | 18 :
 In file included from C../src/s2/s2loop_measures.ho:n33d:
iIn file included from t../src/s2/s1angle.hi:o28n:
(In file included from b../src/s2/s2point.ho:o25l:
 In file included from (../src/s2/util/coding/coder.h*:a36b:
sIn file included from l../src/s2/base/casts.h_:n34o:
nIn file included from n/usr/local/clang/include/absl/log/log.hu:l209l:
 In file included from f/usr/local/clang/include/absl/log/internal/log_impl.hu:n22c:
)(/usr/local/clang/include/absl/log/internal/log_message.hv:o319i:d20*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_nul  l319a | b i l i tcyo_nusntk nwocwhna)r,_
t      *|                     ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   c241o | n#sdte&f ivn)e; 
a      b| s                   ^l
_non/usr/local/clang/include/absl/base/nullability.hn:u257l:l23 :_ Nnote: oexpanded from macro 'absl_nullable'n
nu  l257l | 
#      d| e                     ^f
ine abIn file included from ss2/s2latlng_rect_bounder.ccl:_18n:
uIn file included from l../src/s2/s2latlng_rect_bounder.hl:a21b:
lIn file included from e../src/s2/s2latlng.h :_32N:
uIn file included from l../src/s2/s1angle.hl:a28b:
lIn file included from e../src/s2/s2point.h
:      27| :
                      ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absIn file included from ls2/s2loop_measures.cc_:n18o:
nIn file included from n../src/s2/s2loop_measures.hu:l33l:
 In file included from f../src/s2/s1angle.hu:n28c:
)In file included from (../src/s2/s2point.hv:o25i:
dIn file included from *../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n34u:
lIn file included from l/usr/local/clang/include/absl/log/log.ha:b209i:
lIn file included from i/usr/local/clang/include/absl/log/internal/log_impl.h:t22y:
_/usr/local/clang/include/absl/log/internal/log_message.hu:n321k:n52o:w nwarning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],

      |                                             ^
  321 | /usr/local/clang/include/absl/base/nullability.hi:n289l:i34n:e  note: Lexpanded from macro 'absl_nullability_unknown'o
gM  e289s | s#adgeef&i nLeo gaMbessls_anguel:l:aobpielriattyo_ru<n<k(nwocwhna r__Ntu*l la_busnls_pneuclilfaibelde
       v| )                                 ^ 
{
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defiIn file included from ns2/s2latlng_rect_bounder.cce: 18a:
bIn file included from s../src/s2/s2latlng_rect_bounder.hl:_21n:
uIn file included from l../src/s2/s2latlng.hl:a32b:
lIn file included from e../src/s2/s1angle.h :_28N:
uIn file included from l../src/s2/s2point.hl:a27b:
lIn file included from e../src/s2/s2coder.h
:      23| :
                      ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from In file included from s2/s2loop_measures.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2loop_measures.h../src/s2/s2point.h::3327:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2coder.h::2823:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2567:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::3629:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.h::3494:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::20931:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/log_impl.h::81422::
20/usr/local/clang/include/absl/log/internal/log_message.h:: 340warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]46
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]814
 |   C  o340n | d i tfiroine(nbdo ovlo i(d* aAbbssll_FnoornmnautlFll ufsuhn(cS)t(rTi*n gaibfsylS_innukl*l aabbislli_tnyo_nunnuklnlo wsni)n,k
,      
|                          ^| 
                                             ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_In file included from us2/s2loop_measures.ccn:k18n:
oIn file included from w../src/s2/s2loop_measures.hn: 33_:
NIn file included from u../src/s2/s1angle.hl:l28_:
uIn file included from n../src/s2/s2point.hs:p25e:
cIn file included from i../src/s2/util/coding/coder.hf:i36e:
dIn file included from 
../src/s2/base/casts.h      :| 34                                 ^:

In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     voiIn file included from ds2/s2latlng_rect_bounder.cc*: 18a:
bIn file included from s../src/s2/s2latlng_rect_bounder.hl:_21n:
uIn file included from l../src/s2/s2latlng.hl:a32b:
lIn file included from e../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht:&27 :
vIn file included from )../src/s2/s2coder.h;:
23      :
| In file included from           ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::25729::
23In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31257:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d831e:f46i:n ewarning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
bsl  _831n | u l l a b l et y_pNeunlalmaeb laeb
s      l| :                      ^:
type_identity<T>::type* abIn file included from ss2/s2loop_measures.ccl:_18n:
uIn file included from l../src/s2/s2loop_measures.hl:a33b:
iIn file included from l../src/s2/s1angle.hi:t28y:
_In file included from u../src/s2/s2point.hn:k25n:
oIn file included from w../src/s2/util/coding/coder.hn:
36      :
| In file included from                                              ^../src/s2/base/casts.h
:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289/usr/local/clang/include/absl/log/log.h::34209::
 In file included from note: /usr/local/clang/include/absl/log/internal/log_impl.hexpanded from macro 'absl_nullability_unknown':
22:
  /usr/local/clang/include/absl/log/internal/log_message.h289: | 400#:d17e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 ab  s400l | _ n u l lcaobnislti tvyo_iudn*k naobwsnl __nNuulllla_bulnes pceocnisfti&e dv
)      ;| 
                                 ^      
|                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nIn file included from us2/s2latlng_rect_bounder.ccl:l18a:
bIn file included from l../src/s2/s2latlng_rect_bounder.he: 21_:
NIn file included from u../src/s2/s2latlng.hl:l32a:
bIn file included from l../src/s2/s1angle.he:
28      :
| In file included from                       ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2loop_measures.cc                     ^:
18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :s2/s2latlng_rect_bounder.cc425::1831:
:In file included from  ../src/s2/s2latlng_rect_bounder.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2latlng.h  :42532 | :
 In file included from  ../src/s2/s1angle.hL:o28g:
MIn file included from e../src/s2/s2point.hs:s27a:
gIn file included from e../src/s2/s2coder.hF:a23t:
aIn file included from l/usr/local/clang/include/absl/status/status.h(:c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29c:
hIn file included from a/usr/local/clang/include/absl/strings/cord.hr:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n850n:u16l:l  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
le,   850i | n t   l i n ec)o nAsBtS LT_*A TaTbRsIlB_UnToEn_nCuOlLlD ;o
b      j| e                              ^c
t,/usr/local/clang/include/absl/base/nullability.h
:      241| :               ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naonnulbls l__Nnoonnnnuullll
       _| N                     ^o
nnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from In file included from ../src/s2/s2latlng_rect_bounder.hs2/s2loop_measures.cc::2118:
:
In file included from In file included from ../src/s2/s2latlng.h../src/s2/s2loop_measures.h::3233:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1angle.h::2828:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2725:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/coding/coder.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/casts.h::6734:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/log.h::29209:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/log_impl.h::9422:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::42631::
31/usr/local/clang/include/absl/synchronization/mutex.h:: 851warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]45
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]426
 |    851  | L o g M e s sbaogoelF a(taabls(lc:o:ntsytp ec_hiadre*n taibtsyl<_Tn>o:n:ntuylple :f:i*l ea,b siln_tn olninnuel,l
       m| e                              ^t
ho/usr/local/clang/include/absl/base/nullability.hd:)241(:)22
:       | note:                                             ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^In file included from 
s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427In file included from :s2/s2latlng_rect_bounder.cc31::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2latlng_rect_bounder.h
:21:
In file included from   ../src/s2/s2latlng.h427: | 32 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.hc:o67n:
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h :c29h:
aIn file included from r/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n855u:l34l:  fwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
lur  e855_ | m s ge)x pAlBiScLi_tA TCToRnIdBiUtTiEo_nC(OcLoDn;s
t       | b                              ^o
ol/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dceofnidn)e; 
a      b| s                                 ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2loop_measures.ccs2/s2latlng_rect_bounder.cc::1818:
:
In file included from In file included from ../src/s2/s2loop_measures.h../src/s2/s2latlng_rect_bounder.h::3321:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2latlng.h::2832:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2528:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2point.h::3627:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2coder.h::3423:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/status/status.h::20967:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/status/internal/status_internal.h::2229:
:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :/usr/local/clang/include/absl/strings/cord.h436::9436:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
/usr/local/clang/include/absl/synchronization/mutex.h:  886436: | 31 :  Lwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
Mes  s886a | g e DeexbpulgiFcaitta lC(ocnodnistti ocnh(acro*n satb sTl*_ naobnsnlu_lnlo nfniullel, 
o      b| j                                   ^)

      | /usr/local/clang/include/absl/base/nullability.h                              ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from s2/s2latlng_rect_bounder.cc../src/s2/base/casts.h::1834:
:
In file included from In file included from ../src/s2/s2latlng_rect_bounder.h/usr/local/clang/include/absl/log/log.h::21209:
:
In file included from In file included from ../src/s2/s2latlng.h/usr/local/clang/include/absl/log/internal/log_impl.h::3222:
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/log_message.h::28446:
:In file included from 43../src/s2/s2point.h:: 27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h446: | 67 :
 In file included from L/usr/local/clang/include/absl/status/internal/status_internal.ho:g29M:
eIn file included from s/usr/local/clang/include/absl/strings/cord.hs:a94g:
eIn file included from Q/usr/local/clang/include/absl/strings/internal/cordz_info.hu:i31e:
t/usr/local/clang/include/absl/synchronization/mutex.hl:y896D:e31b:u gFatawarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
con  s896t |   c heaxrp*l iacbistl _Cnoonndniutlilo nf(icloen,s
t       | T                                          ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241o | b#jd)e
f      i| n                              ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:In file included from 33s2/s2latlng_rect_bounder.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2latlng_rect_bounder.h:
:In file included from 21../src/s2/s2point.h:
:In file included from 25../src/s2/s2latlng.h:
:In file included from 32../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/s1angle.h:
:In file included from 28../src/s2/base/casts.h:
:In file included from 34../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/log.h:
:In file included from 209../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 22/usr/local/clang/include/absl/status/status.h:
:/usr/local/clang/include/absl/log/internal/log_message.h67::
454In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h38::29 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h454: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hL:o922g:M48e:s swarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]g
eQu  i922e | t l ysFtaattailc( cboonoslt  Gcuhaarra*n taebesdlE_qnuoanln(ucloln sfti lCeo,n
d      i| t                                     ^i
on/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed eaf,i
n      e|                                                 ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 _  N257o | n#nduelfli
n      e|                       ^a
bsl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.ccIn file included from :s2/s2latlng_rect_bounder.cc18::
18In file included from :
../src/s2/s2loop_measures.hIn file included from :../src/s2/s2latlng_rect_bounder.h33::
21In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2latlng.h28::
32In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s1angle.h25::
28In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2point.h36::
27In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2coder.h34::
23In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :/usr/local/clang/include/absl/status/status.h209::
67In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::
29/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 456/usr/local/clang/include/absl/strings/cord.h::3894::
 In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:  923456: | 48 :  Lwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]g
Mes  s923a | g e Q u i  e t l y F a t a l ( c o n s t   c h a r *   a b sclo_nnsotn nCuolnld iftiiloen,*  ianbts ll_innuel,l
a      b| l                                     ^e
 b/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                                               ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257  :24123 | :# dnote: eexpanded from macro 'absl_nullable'f
in  e257  | a#bdself_innoen naublsll __nNuolnlnaubllle
       _| N                     ^u
llable
      |                       ^In file included from 
s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |        In file included from  s2/s2latlng_rect_bounder.cc : 18 :
 In file included from  ../src/s2/s2latlng_rect_bounder.h : 21 :
 In file included from  ../src/s2/s2latlng.h : 32 :
 In file included from  ../src/s2/s1angle.h : 28c:
oIn file included from n../src/s2/s2point.hs:t27 :
cIn file included from h../src/s2/s2coder.ha:r23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94f:
aIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hl:u31r:
e/usr/local/clang/include/absl/synchronization/mutex.h_:m948s:g10):
       warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                     ^

/usr/local/clang/include/absl/base/nullability.h:  241948: | 22 :  bnote: oexpanded from macro 'absl_nonnull'o
l   (241* | a#bdself_innuel laabbslle_ neovnanlu_l)l( c_oNnosntn uCloln
d      i| t                     ^i
on* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<In file included from Ts2/s2lax_polygon_shape.cc>::18::
tIn file included from y../src/s2/s2lax_polygon_shape.hp:e36::
:In file included from *../src/s2/s2polygon.h :a29b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h_:n45o:
nIn file included from n/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l27l:
 m/usr/local/clang/include/absl/container/internal/raw_hash_set.he:t2663h:o53d:) (warning: )'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                                           ^
/usr/local/clang/include/absl/base/nullability.h :2663241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
T&  &241  | v#adleufei nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this))
      |                                                     ^~~~
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/container/internal/raw_hash_set.h:
:In file included from 2692/usr/local/clang/include/absl/status/status.h::5867::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :29'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h2692: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1293 : 33c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 T&  v1293a | lvuoei dA BRSeLg_iIsNtTeErRMNuAtLe_xATTrTaRcIeBrU(TvEo_iCdA P(T*UaRbEsDl__BnYo(ntnhuilsl) )f
n      )| (                                                         ^~~~c
onst char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294/usr/local/clang/include/absl/container/internal/raw_hash_set.h::622734:: 65:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1294 |    2734  |                                      T & &   v a l u e   A B S L _ I N T E R N A L _ A T T RcIoBnUsTtE _vCoAiPdT*U RaEbDs_lB_Yn(otnhniusl)l) 
o      b| j                                                                ^~~~,

      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2loop_measures.ccnote: :expanded from macro 'absl_nonnull'18
:
In file included from   ../src/s2/s2loop_measures.h241: | 33#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b25s:
lIn file included from _../src/s2/util/coding/coder.hn:o36n:
nIn file included from u../src/s2/base/casts.hl:l36 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_noIn file included from ns2/s2latlng_rect_bounder.ccn:u18l:
lIn file included from  ../src/s2/s2latlng_rect_bounder.hp:r21e:
fIn file included from i../src/s2/s2latlng.hx:)32;:

In file included from       ../src/s2/s1angle.h| :                        ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27241:
:In file included from 22../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n898e: 27a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nonn  u898l | l   _fNroinennudl lc
o      n| s                     ^t
 CordzInfo* In file included from as2/s2loop_measures.ccb:s18l:
_In file included from n../src/s2/s2loop_measures.hu:l33l:
aIn file included from b../src/s2/s1angle.hl:e28 :
GIn file included from e../src/s2/s2point.ht:C25o:
rIn file included from d../src/s2/util/coding/coder.hz:I36n:
fIn file included from o../src/s2/base/casts.hF:o36r:
TIn file included from e../src/s2/base/logging.hs:t21i:
nIn file included from g/usr/local/clang/include/absl/log/check.h(:
37      :
| In file included from                           ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::257181::2358::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  257 |   #181d | e f i n ec oanbsstl _anbuslll:a:bSltea t_uNsu*l laabbslle_
n      o| n                      ^n
ull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absIn file included from ls2/s2latlng_rect_bounder.cc:::18S:
tIn file included from a../src/s2/s2latlng_rect_bounder.ht:u21s:
*In file included from  ../src/s2/s2latlng.ha:b32s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
AIn file included from s../src/s2/s2coder.hS:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:(67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
a/usr/local/clang/include/absl/strings/cord.hb:s927l::43::S twarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
us&   s927) |   { 
        |                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s lC_onrodnRneupl*l  a_bNsoln_nnuullll
a      b| l                     ^e
 rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.hIn file included from :s2/s2latlng_rect_bounder.cc36::
18In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2latlng_rect_bounder.h36::
21In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2latlng.h21::
32In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s1angle.h37::
28In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2point.h21::
27/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 193../src/s2/s2coder.h::2123::
 In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29193:
 | /usr/local/clang/include/absl/strings/cord.hc:o929n:s26t:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l::  S929t | a t u s *v oaibds lS_wnaopn(nIunllli nAesRSetpa*t uasb(sclo_nnsotn naublsll :r:hSst)a;t
u      s| O                         ^r
<T/usr/local/clang/include/absl/base/nullability.h>:&241 :s22):  {note: 
expanded from macro 'absl_nonnull'      
|                     ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17In file included from :s2/s2loop_measures.cc :warning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2loop_measures.h:33  :
932In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from c../src/s2/s2point.ho:n25s:
tIn file included from  ../src/s2/util/coding/coder.hc:h36a:
rIn file included from *../src/s2/base/casts.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hd:a21t:
a/usr/local/clang/include/absl/log/internal/check_op.h(:)202 :c46o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                 ^
  202 | /usr/local/clang/include/absl/base/nullability.h : 257e:x23p:l inote: cexpanded from macro 'absl_nullable'i
t   C257h | e#cdkeOfpiMnees saabgselB_uniulldlearb(lceo n_sNtu lclhaabrl*e 
a      b| s                      ^l
_nonnull exprtexIn file included from ts2/s2latlng_rect_bounder.cc):;18
:
      In file included from | ../src/s2/s2latlng_rect_bounder.h                                             ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2latlng.h::24132::
22In file included from :../src/s2/s1angle.h :note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h  :24127 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
n/usr/local/clang/include/absl/strings/cord.hn:u934l:l31 :_ Nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l934
 |        |                       ^ 
 void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absIn file included from ls2/s2loop_measures.cc_:n18o:
nIn file included from n../src/s2/s2loop_measures.hu:l33l:
 In file included from s../src/s2/s1angle.he:t28_:
dIn file included from a../src/s2/s2point.ht:a25(:
sIn file included from i../src/s2/util/coding/coder.hz:e36_:
tIn file included from  ../src/s2/base/casts.hn:)36;:
 In file included from  ../src/s2/base/logging.h/:/21 :
WIn file included from r/usr/local/clang/include/absl/log/check.hi:t37e:
 In file included from d/usr/local/clang/include/absl/log/internal/check_impl.ha:t21a:
 /usr/local/clang/include/absl/log/internal/check_op.ht:o209 :t15h:e  warning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
sul  t209
 |        |            ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :char22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nNee waSbtsrli_nngo(n)n;u
l      l|                ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull In file included from _s2/s2latlng_rect_bounder.ccN:o18n:
nIn file included from u../src/s2/s2latlng_rect_bounder.hl:l21
:
      In file included from | ../src/s2/s2latlng.h                     ^:
32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2latlng_rect_bounder.ccs2/s2loop_measures.cc::1818:
:
In file included from In file included from ../src/s2/s2latlng_rect_bounder.h../src/s2/s2loop_measures.h::2133:
:
In file included from In file included from ../src/s2/s2latlng.h../src/s2/s1angle.h::3228:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2point.h::2825:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/util/coding/coder.h::2736:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/base/casts.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/logging.h::6721:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/check.h::2937:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h938::2135:
: /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]226
:59:   warning: 938type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
      a226b | svlo:i:dc oMradk_eiCnhteecrknOaplV:a:lCuoerSdtRreipn*g (asbtsdl:_:noosntnruelalm &a so_st,r eceo(n)s tc ovnositd;*
       a| b                                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
p)  ;241
 |       #| d                                                          ^e
fin/usr/local/clang/include/absl/base/nullability.he: 257a:b23s:l _nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #_dNeofninnuel la
b      s| l                     ^_
nullable _NullaIn file included from bs2/s2latlng_rect_bounder.ccl:e18
:
      In file included from | ../src/s2/s2latlng_rect_bounder.h                      ^:
21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* abIn file included from ss2/s2loop_measures.ccl:_18n:
uIn file included from l../src/s2/s2loop_measures.hl:a33b:
In file included from lIn file included from s2/s2hausdorff_distance_query.cce../src/s2/s1angle.h: :16c28:
l:
In file included from eIn file included from ../src/s2/s2hausdorff_distance_query.ha../src/s2/s2point.h:r:25(25:
):
In file included from ;In file included from ../src/s2/s2min_distance_targets.h
../src/s2/util/coding/coder.h:      :33| 36:
                                  ^:
In file included from 
In file included from ../src/s2/s2cell_index.h../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.h:::2636257:
:
:In file included from In file included from 23/usr/local/clang/include/absl/container/flat_hash_set.h../src/s2/base/logging.h::: 4521note: :
expanded from macro 'absl_nullable':

/usr/local/clang/include/absl/container/internal/raw_hash_set.hIn file included from   :/usr/local/clang/include/absl/log/check.h2572663: | :#3753d:
:eIn file included from  f/usr/local/clang/include/absl/log/internal/check_impl.hwarning: i:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n21
e:
 /usr/local/clang/include/absl/log/internal/check_op.ha: b2762663s: | l _13 n :u l  l warning: aTbtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]&l
&e  v_  aN276luu | lcel oaAbnBlSseLt
_       Iv| No                      ^Ti
EdR*N AaLb_sAlT_TnRuIlBlUaTbEl_eC AoPpTeUrRaEtDo_rB<Y<((tsIn file included from hts2/s2latlng_rect_bounder.ccid:s:):18)o:

sIn file included from       t../src/s2/s2latlng_rect_bounder.h| r:                                                    ^~~~e21a
:
mIn file included from &../src/s2/s2latlng.h,:
32      :
| In file included from             ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h257::2723:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'absl_nullable'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :25767 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:29f:
i/usr/local/clang/include/absl/strings/cord.hn:e950 :a18b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ulla  b950l | e   _ N uClolradbRleep
F      l| a                      ^t
* absl_nonnIn file included from us2/s2loop_measures.ccl:l18 :
MIn file included from a../src/s2/s2loop_measures.hk:e33F:
lIn file included from a../src/s2/s1angle.ht:W28i:
tIn file included from h../src/s2/s2point.hE:x25t:
rIn file included from a../src/s2/util/coding/coder.hC:a36p:
aIn file included from c../src/s2/base/casts.hi:t36y:
(In file included from s../src/s2/base/logging.hi:z21e:
_In file included from t/usr/local/clang/include/absl/log/check.h :e37x:
tIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.ha:)21;:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 277                 ^:
50: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'277
 |     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
const v/usr/local/clang/include/absl/container/internal/raw_hash_set.ho:i2692d:*58 :a bwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from l
_s2/s2latlng_rect_bounder.ccn:u18 l:
2692lIn file included from a | b../src/s2/s2latlng_rect_bounder.hl e:  21v a:
 lIn file included from u e../src/s2/s2latlng.h ):;c
32o      :
n| In file included from s                                                 ^../src/s2/s1angle.ht
: 28/usr/local/clang/include/absl/base/nullability.hT:
&:In file included from  257../src/s2/s2point.hv::a2327l::
u In file included from enote: ../src/s2/s2coder.h expanded from macro 'absl_nullable':A
23B:
  SIn file included from L257/usr/local/clang/include/absl/status/status.h_ | :I#67Nd:
TeIn file included from fEiRn/usr/local/clang/include/absl/status/internal/status_internal.hNe:A 29La:
b_s/usr/local/clang/include/absl/strings/cord.hAl:_T957nTu:lRl27Ia:Bb lUwarning: eTtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E 
__CNAu  Pl957Tl | aU Rb El De _
vBo      Yi| (dt                      ^ h
Siest)T)r
e      e| (                                                         ^~~~C
ordRep* aIn file included from bs2/s2loop_measures.ccs:l18_:
nIn file included from o../src/s2/s2loop_measures.hn:n33u:
lIn file included from l../src/s2/s1angle.h :r28e:
pIn file included from ,../src/s2/s2point.h :c25o:
nIn file included from s../src/s2/util/coding/coder.ht: 36C:
oIn file included from r../src/s2/base/casts.hd:z36U:
pIn file included from d../src/s2/base/logging.ha:t21e:
SIn file included from c/usr/local/clang/include/absl/log/check.ho:p37e:
&In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hs:c21o:
p/usr/local/clang/include/absl/log/internal/check_op.he:)278;:
13      :|                            ^warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:  22278: |  cnote: oexpanded from macro 'absl_nonnull'n
st   241v | o#idde*f ianbes la_bnsull_lnaobnlneu lolp e_rNaotnonru<l<l(
s      t| d                     ^:
:ostream&, std::nullptr_t);
      |             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2latlng_rect_bounder.cc::25718::
23In file included from :../src/s2/s2latlng_rect_bounder.h :note: 21expanded from macro 'absl_nullable':

In file included from ../src/s2/s2latlng.h:  32257:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
u/usr/local/clang/include/absl/strings/cord.hl:l961a:b34l:e 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                      ^

  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullabIn file included from ls2/s2loop_measures.cce:
18      :
| In file included from                       ^../src/s2/s2loop_measures.h
:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2latlng_rect_bounder.cc/usr/local/clang/include/absl/log/check.h::1837:
:
In file included from In file included from ../src/s2/s2latlng_rect_bounder.h/usr/local/clang/include/absl/log/internal/check_impl.h::2121:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2latlng.h::29232::
13In file included from :../src/s2/s1angle.h :warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27:
  In file included from 292../src/s2/s2coder.h | :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s968l:_31n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll o  p968e | r a t o rv<o<i(ds tEdm:p:lbaacseiTcr_eoes(tCroeradmR<ecph*a ra,b sTlr_aniotnsn>u&l,l
       r| e            ^p
, /usr/local/clang/include/absl/base/nullability.hM:e241t:h22o:d Inote: dexpanded from macro 'absl_nonnull'e
nt  i241f | i#edre fmienteh oadb)s;l
_      n| o                              ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnuIn file included from ls2/s2loop_measures.ccl: 18_:
NIn file included from o../src/s2/s2loop_measures.hn:n33u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2latlng_rect_bounder.cc21::
18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 293../src/s2/s2latlng_rect_bounder.h::4921::
 In file included from warning: ../src/s2/s2latlng.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
32:
In file included from ../src/s2/s1angle.h  :29328 | :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 972 : 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      972  |   c o n svto icdh aErm*p laabcselT_rneoen(nCuolrld)R;e
p      *|                                                  ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lIn file included from expanded from macro 'absl_nonnull'ls2/s2lax_polygon_shape.cc
 :r  18e241:
p | In file included from ,#../src/s2/s2lax_polygon_shape.h d:ec36of:
niIn file included from sn../src/s2/s2polygon.het:  29Ia:
nbIn file included from ls/usr/local/clang/include/absl/container/flat_hash_map.hil:_n45en:
Doa/usr/local/clang/include/absl/container/internal/raw_hash_map.hntn:ua143l&:l 59p :_a Nrwarning: oepassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nn
ntu,l  l
143
       |       |  |                               ^                      ^
 
 /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #fdaelfsieIn file included from n,es2/s2loop_measures.cc  :fa18ab:
lsIn file included from sl../src/s2/s2loop_measures.he_,:n o33AnB:
nSIn file included from uL../src/s2/s1angle.hl_:lI28 N:
_TIn file included from NE../src/s2/s2point.hoRn:Nn25AuL:
l_In file included from lS../src/s2/util/coding/coder.h
I:      N36| G                     ^:
L
In file included from E../src/s2/base/casts.h_:A36R:
GIn file included from (../src/s2/base/logging.h):)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                                          ^In file included from 37
s2/s2latlng_rect_bounder.cc:
:/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from 18:/usr/local/clang/include/absl/log/internal/check_impl.h:
120:In file included from :21../src/s2/s2latlng_rect_bounder.h9:
::/usr/local/clang/include/absl/log/internal/check_op.h21 ::
note: 295In file included from macro 'ABSL_INTERNAL_X' defined here:../src/s2/s2latlng.h
20::32   :
120warning: In file included from  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h#
:d28e:
f  In file included from i295../src/s2/s2point.hn | :ec27 o:
AnIn file included from Bs../src/s2/s2coder.hSt: Ls23_i:
IgIn file included from nNe/usr/local/clang/include/absl/status/status.hTd:E 67Rc:
NhIn file included from Aa/usr/local/clang/include/absl/status/internal/status_internal.hLr:_*29X :
(aF/usr/local/clang/include/absl/strings/cord.hbu:ns978lc:_,36 n:oC nawarning: lntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lu
elel,    o978Kp | eQ ur a al t,v oorV<iQd<u (asClot,dm: m:KibVtaaTlsriueece_,( ocsVotVnraselatmu <eCc,oh raTdarRi,el p,T*  r.a.ab.is)lt _s\n>
&u      l,| l        ^
a
      b| l                   ^e
 o/usr/local/clang/include/absl/base/nullability.hl:d241_:r22e:p ,note: 
expanded from macro 'absl_nonnull'      
|                                    ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.hIn file included from :s2/s2latlng_rect_bounder.cc33::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2latlng_rect_bounder.h28::
21In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2latlng.h25::
32In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s1angle.h36::
28In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2point.h36::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:
/usr/local/clang/include/absl/log/internal/check_impl.h:In file included from :142/usr/local/clang/include/absl/status/internal/status_internal.h21:::
329/usr/local/clang/include/absl/log/internal/check_op.h::
: /usr/local/clang/include/absl/strings/cord.h296warning: ::passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]97963
::30   :warning: 142 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | warning:  
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
A  B296  S | 979 L |  _  I   N  T  E  R  N   A  L  _ X   (  i n  s  e r   t  _   o  rC _o a r sds Ri eg pn *,    a i bn ssl e_ rn to_ no nru _lacls osrnesipgt,n  _csioimngpsnletd,   CccoohrndasztrU*&p ,adb acstole_nSnscoton&pn,eu
&l       l| s  ^)c;
o
p      /usr/local/clang/include/absl/container/internal/raw_hash_map.he| :                                                              ^,133

:      52| /usr/local/clang/include/absl/base/nullability.h:                             ^: 
241note: :/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X'22:
:241 :  note: 22expanded from macro 'absl_nonnull'133:
 |     note:  expanded from macro 'absl_nonnull'241 
  |    # 241d  | e #fd ie nfAieBn SeLa _abIsbNlsTl_E_nRnNoonAnnuLn_luAll T_lTN Ro_InBnNuolUlnT
nEu      _l| ClA                     ^
P
      T| U                     ^R
ED_BY(this)),         In file included from In file included from  s2/s2loop_measures.ccs2/s2latlng_rect_bounder.cc :: 1818 :
:
 In file included from In file included from  ../src/s2/s2loop_measures.h../src/s2/s2latlng_rect_bounder.h :: 3321 :
:
 In file included from In file included from  ../src/s2/s1angle.h../src/s2/s2latlng.h :: 2832 :
:
 In file included from In file included from  ../src/s2/s2point.h../src/s2/s1angle.h ::\2528
:
:
      In file included from In file included from | ../src/s2/util/coding/coder.h../src/s2/s2point.h                                                   ^::
3627:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/common.h:::362332:
:
:In file included from In file included from 9../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.h::: 2167note: :
:
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from In file included from 
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/internal/status_internal.h::   372932:
:
 | In file included from /usr/local/clang/include/absl/strings/cord.h#/usr/local/clang/include/absl/log/internal/check_impl.h:d:982e21:f:
39i:n/usr/local/clang/include/absl/log/internal/check_op.h e:warning:  298type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A:
B22S:  L 982_ | Iwarning:  Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] T
 E RvN  oAi298Ld_ |  cIoAFpn_pfseantld sTeur(eniefsTi_/usr/local/clang/include/absl/container/internal/raw_hash_set.hogsn:Iane2734tlid: is65fcn:eidh e(awarning: dC,r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o r*
.d. R e.a2734p)*b |   _s a b s l _l_ n V _oA nno_ A RnGn u lSln u_ _t
 lr      e el|  ,          ^o
T
&p      &e|                                        ^rv
aal/usr/local/clang/include/absl/base/nullability.huIn file included from t:es2/s2lax_polygon_shape.cc o241:Ar:18B<22:
S<:(In file included from sL ../src/s2/s2lax_polygon_shape.ht_note: :expanded from macro 'absl_nonnull'dI36
::
:N  TIn file included from Eb241../src/s2/s2polygon.hRa | s:N#Ai29dLec:
__fAiTnIn file included from eoT/usr/local/clang/include/absl/container/flat_hash_map.h sR:atI45brB:
U/usr/local/clang/include/absl/container/internal/raw_hash_map.hseTaEm_:l<C142_cA:PnTh3oUnRa:nEur Dl,warning: _lB passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] Y_T
(Nr  toha142nini | s ) )AuBt
slSlL
_      I>      &| N| T,                                                                ^~~~                     ^E


R      N| A                     ^L
_X/usr/local/clang/include/absl/base/nullability.h(:i241n:s22e:rIn file included from  ts2/s2latlng_rect_bounder.cc_note: :oexpanded from macro 'absl_nonnull'18r
:
_In file included from   a../src/s2/s2latlng_rect_bounder.hs241:s | 21#id:
egIn file included from fn../src/s2/s2latlng.h,i: n32ie:
n In file included from sa../src/s2/s1angle.heb:srl28_t:
n_In file included from oo../src/s2/s2point.hnr:_n27ua:
slIn file included from ls../src/s2/s2coder.hi :_g23nN:
_oIn file included from ni/usr/local/clang/include/absl/status/status.hmn:upl67ll:
,
In file included from        /usr/local/clang/include/absl/status/internal/status_internal.hc| :o                     ^29n
:
s/usr/local/clang/include/absl/strings/cord.ht:&984,: 36c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
&,
In file included from         s2/s2loop_measures.cc| 984:  ^ | 18
 :
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h In file included from : ../src/s2/s2loop_measures.h135v::o3316i:
:dIn file included from   ../src/s2/s1angle.hnote: Aexpanded from macro 'ABSL_INTERNAL_X':p
28p:
e  In file included from n135d../src/s2/s2point.h | T :r e25 e :
T oIn file included from  T../src/s2/util/coding/coder.h r: e 36e (:
tCIn file included from hoi../src/s2/base/casts.hrsd:)R36)e:
p)In file included from * ../src/s2/base/logging.h A:aBb21Ss:
LlIn file included from __/usr/local/clang/include/absl/log/check.hAn:ToT37nR:
nIIn file included from uBl/usr/local/clang/include/absl/log/internal/check_impl.hUlT: E21t_r:
LeI/usr/local/clang/include/absl/log/internal/check_op.heF:,E299 TM:Ie67Mt:Eh_ oBwarning: dOtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]IU
dNeDn   t{299i  | f i   e r     m  e  t  h  o  d  )   ;  
          |                                      ^   
  /usr/local/clang/include/absl/base/nullability.h  :  241  :  22  :     note:  expanded from macro 'absl_nonnull'  
      241\  | 
#       d |  e               ^ f
 i /usr/local/clang/include/absl/container/internal/common.hn :e 32  :a 9b : s lnote:  _ macro 'ABSL_INTERNAL_IF_false' defined here n
ocn   on32nus | lt#ld  e_ufNnionsneni uAglBnleSd
 L      _c| Ih                     ^Na
TrE*R NaAbLs_lI_Fn_ofIn file included from nas2/s2latlng_rect_bounder.ccln:us18le:
l(In file included from )i../src/s2/s2latlng_rect_bounder.hf;:_
21s      :
a| In file included from                                                                   ^t../src/s2/s2latlng.h
i:s/usr/local/clang/include/absl/base/nullability.h32f::
i241In file included from e:../src/s2/s1angle.hd22:,:28  :
.note: In file included from expanded from macro 'absl_nonnull'.../src/s2/s2point.h
.:  )27241 :
 | _#In file included from _d../src/s2/s2coder.hVe:Af23_i:
AnIn file included from Re/usr/local/clang/include/absl/status/status.hG :Sa67_b:
_s
lIn file included from       _/usr/local/clang/include/absl/status/internal/status_internal.h| n:o        ^n29
n:
u/usr/local/clang/include/absl/strings/cord.hl:l985 :_30N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 985                     ^ | 
    void AppeIn file included from ns2/s2lax_polygon_shape.ccd:T18r:
eIn file included from e../src/s2/s2lax_polygon_shape.h(:C36o:
rIn file included from d../src/s2/s2polygon.hR:e29p:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_map.ha:b45s:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n145o:n58n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
tre  e145, |   M e t h o d I d e n t i f i e r   mfeatlhsoed,) ;t
r      u| e                             ^,
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | S#IdNeGfLiEn_eA RaGb(s)l)_;n
o      n| n                                                         ^u
ll/usr/local/clang/include/absl/container/internal/raw_hash_map.h :_120N:o9n:n unote: lmacro 'ABSL_INTERNAL_X' defined herel

      |                      ^  
120 | #define ABSL_INTERNAIn file included from Ls2/s2latlng_rect_bounder.cc_:X18(:
FIn file included from u../src/s2/s2latlng_rect_bounder.hn:c21,:
 In file included from C../src/s2/s2latlng.hal:l32e:
eIn file included from ,../src/s2/s1angle.h :K28Q:
uIn file included from a../src/s2/s2point.hl:,27 :
VIn file included from Q../src/s2/s2coder.hu:a23l:
,In file included from  /usr/local/clang/include/absl/status/status.hK:V67a:
lIn file included from In file included from u/usr/local/clang/include/absl/status/internal/status_internal.hs2/s2loop_measures.cce::,2918 :
:
V/usr/local/clang/include/absl/strings/cord.hIn file included from V:../src/s2/s2loop_measures.ha986:l:33u40e:
:,In file included from   ../src/s2/s1angle.hwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:a
i28l:
  ,In file included from 986 ../src/s2/s2point.h | . :. 25. ):
  vIn file included from \o../src/s2/util/coding/coder.h
i:      d36|  :
        ^PIn file included from 
r../src/s2/base/casts.he:p36e:
nIn file included from d../src/s2/base/logging.hT:r21e:
eIn file included from T/usr/local/clang/include/absl/log/check.ho:I37n:
lIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21d:
(/usr/local/clang/include/absl/log/internal/check_op.hC:o323r:d46R:e pwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _323n | o n nfurlile ntdr eveo,i
d       | A                                       ^b
sl/usr/local/clang/include/absl/base/nullability.hF:o241r:m22a:t Fnote: lexpanded from macro 'absl_nonnull'u
sh  (241S | t#rdienfgiinfey Saibnskl*_ naobnsnlu_l/usr/local/clang/include/absl/container/internal/raw_hash_map.hnl:o 144n_:nN3uo:ln nlwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]sui
nlkl  ,
144
       |       |                       ^|                                               ^
A
BSL/usr/local/clang/include/absl/base/nullability.h_:I241:N22T:E In file included from Rnote: s2/s2latlng_rect_bounder.ccexpanded from macro 'absl_nonnull'N:
A18L:
_  In file included from X241../src/s2/s2latlng_rect_bounder.h( | :i#21nd:
seIn file included from ef../src/s2/s2latlng.hir:tn32_e:
o In file included from ra../src/s2/s1angle.h_b:sal28s_:
snIn file included from io../src/s2/s2point.hng:nn27u,:
l In file included from li../src/s2/s2coder.h n:s_23eN:
orIn file included from nt/usr/local/clang/include/absl/status/status.hn_u:lo67rl:
_
In file included from a      /usr/local/clang/include/absl/status/internal/status_internal.hs| :                     ^s29i
:
g/usr/local/clang/include/absl/strings/cord.hn:_988i:m37p:l ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst  &988, |   c o n svto&i,d
       | P  ^r
ep/usr/local/clang/include/absl/container/internal/raw_hash_map.he:n133d:T52r:e enote: Texpanded from macro 'ABSL_INTERNAL_X'o
Tre  e133( | C o r d R e p *   a bAsBlS_Ln_oInNnTuElRlN AtLr_eAeT,T RMIeBtUhToEd_ICdAePnTtUiRfEiDe_rB Ym(etthhiosd)));,
        |                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                                                   ^l
_n/usr/local/clang/include/absl/container/internal/common.ho:n32n:u9l:l  note: _macro 'ABSL_INTERNAL_IF_false' defined hereN
onn   u32l | l#
d      e| f                     ^i
ne ABSL_INTERNAL_In file included from Is2/s2latlng_rect_bounder.ccF:_18f:
aIn file included from l../src/s2/s2latlng_rect_bounder.hs:e21(:
iIn file included from f../src/s2/s2latlng.h_:s32a:
tIn file included from i../src/s2/s1angle.hs:f28i:
eIn file included from d../src/s2/s2point.h,: 27.:
.In file included from .../src/s2/s2coder.h): 23_:
_In file included from V/usr/local/clang/include/absl/status/status.hA:_67A:
RIn file included from G/usr/local/clang/include/absl/status/internal/status_internal.hS:_29_:

/usr/local/clang/include/absl/strings/cord.h      :| 989        ^:
31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989In file included from  | s2/s2lax_polygon_shape.cc : 18 :
 In file included from v../src/s2/s2lax_polygon_shape.ho:i36d:
 In file included from P../src/s2/s2polygon.hr:e29p:
eIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hd:T45r:
e/usr/local/clang/include/absl/container/internal/raw_hash_map.he:(144C:o3r:d Rwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
* a  b144s | l _ nAoBnSnLu_lIlN TtErReNeA,L _MXe(tihnosdeIrdte_notri_faisesri gmne,t hionds)e;r
t      _| o                              ^r
_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:_ inote: mexpanded from macro 'absl_nonnull'p
l,   241c | o#ndsetf&i,n ec oanbsstl&_,n
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/raw_hash_map.h :_135N:o16n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l

      |                      ^  
135 |           this))) ABSL_ATTRIBUTE_In file included from Ls2/s2latlng_rect_bounder.ccI:F18E:
TIn file included from I../src/s2/s2latlng_rect_bounder.hM:E21_:
BIn file included from O../src/s2/s2latlng.hU:N32D:
 In file included from {../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 994 : 30 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                ^
  /usr/local/clang/include/absl/container/internal/common.h994: | 31 : 9 :  vnote: omacro 'ABSL_INTERNAL_IF_true' defined herei
d C   o31p | y#Tdoe(fsitnde: :AsBtSrLi_nIgN*T EaRbNsAlL__nIoFn_nturlule (disft_)s actoinssfti e{d
,       | .                             ^.
.)/usr/local/clang/include/absl/base/nullability.h :i241f:_22s:a tnote: iexpanded from macro 'absl_nonnull's
fi  e241d | 
#      d| e        ^f
ine absl_nonnuIn file included from ls2/s2lax_polygon_shape.ccl: 18_:
NIn file included from o../src/s2/s2lax_polygon_shape.hn:n36u:
In file included from ../src/s2/s2polygon.h:29l:
lIn file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h      :| 45                     ^:

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_In file included from Is2/s2latlng_rect_bounder.ccN:T18E:
RIn file included from N../src/s2/s2latlng_rect_bounder.hA:L21_:
XIn file included from (../src/s2/s2latlng.hi:n32s:
eIn file included from r../src/s2/s1angle.htIn file included from :_s2/s2loop_measures.cc28o::
r18In file included from _:
../src/s2/s2point.haIn file included from :s../src/s2/s2loop_measures.h27s::
i33In file included from g:
../src/s2/s2coder.hnIn file included from :,../src/s2/s1angle.h23 ::
i28In file included from n:
/usr/local/clang/include/absl/status/status.hsIn file included from :e../src/s2/s2point.h67r::
t25In file included from _:
/usr/local/clang/include/absl/status/internal/status_internal.hoIn file included from :r../src/s2/util/coding/coder.h29_::
a36/usr/local/clang/include/absl/strings/cord.hs:
:sIn file included from 999i../src/s2/base/casts.h:g:28n36:_:
 iIn file included from warning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p../src/s2/base/logging.h
l:,21   :
999cIn file included from  | o/usr/local/clang/include/absl/log/check.h n: s 37t :
&v,In file included from o /usr/local/clang/include/absl/log/internal/check_impl.hicd:o n21Cs:
ot/usr/local/clang/include/absl/log/internal/check_op.hp&:y,T428
o:      A44| r  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:r
a y  (warning: 145ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | h 
a r *     428a b |  As BlS L_ _n oA nT TnR uI l BlU T E df_saRtlE)sT Uec,Ro nNtSsrt_u;eN
,O       N| AN                           ^UB
LSL/usr/local/clang/include/absl/base/nullability.h Lc_o:nI241Ns:Tt22E :Rc Nhnote: aArexpanded from macro 'absl_nonnull'L*
_   Sa241Ib | Ns#GdlLe_Efn_ioAnRnenG (ua)bl)sl;l 
_M      ank| eoC                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~nh
encu/usr/local/clang/include/absl/container/internal/raw_hash_map.hlk:Ol135p :S_11tN:ro ninote: nngexpanded from macro 'ABSL_INTERNAL_X'u(
l
l        
| 135                                           ^       | 
|                       ^ 
 /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: texpanded from macro 'absl_nonnull'h
is  )241) | )# dAeBfSiLn_eA TaTbRsIIn file included from lBs2/s2latlng_rect_bounder.ccU_:Tn18Eo:
_nIn file included from Ln../src/s2/s2latlng_rect_bounder.huI:lFl21E :
T_In file included from IN../src/s2/s2latlng.hMo:En32_n:
BuIn file included from Ol../src/s2/s1angle.hUl:N
28D      :
 | In file included from                      ^{../src/s2/s2point.h
 : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  In file included from /usr/local/clang/include/absl/status/status.h s2/s2loop_measures.cc: :67 18:
 :
In file included from  In file included from /usr/local/clang/include/absl/status/internal/status_internal.h ../src/s2/s2loop_measures.h: :29 33:
 /usr/local/clang/include/absl/strings/cord.h:
 : In file included from 1012 ../src/s2/s1angle.h: :37 28: :
  In file included from warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h 
 : 25 \:
1012
In file included from  |        ../src/s2/util/coding/coder.h|  :          ^~~~ 36
 :
aIn file included from b../src/s2/base/casts.hs:l36::
:In file included from c../src/s2/base/logging.ho:r21d:
_In file included from i/usr/local/clang/include/absl/log/check.hn:t37e:
rIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ha:l21::
:/usr/local/clang/include/absl/log/internal/check_op.hC:o429r:d31z:I nwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
* ab  s429l | _ n u l lTa1b lve1 ,c oTr2d zv_2i,n fcoo(n)s tc ocnhsatr/usr/local/clang/include/absl/container/internal/raw_hash_map.h *: {147
a:      b52| s:                                    ^l 
warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/base/nullability.hn
:o257n:  n23147u: | l  note: l expanded from macro 'absl_nullable'  e
x   p 257r  |  t#e d xet )f  iA BnS Le  _ aA b Ts lTf_RaInBlusUlelT,Ea_ NbOAlIBeSN LLI_N_EN;I
uN      lT| l                              ^Ea
RbN/usr/local/clang/include/absl/base/nullability.hlA:eL241
_:      S22| I                      ^:N
 Gnote: Lexpanded from macro 'absl_nonnull'E
_A  R241G | (#)d)e;fIn file included from 
is2/s2latlng_rect_bounder.cc      n:| e18                                                   ^ :

aIn file included from b/usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/s2latlng_rect_bounder.hs::l12021_::
n9In file included from o:../src/s2/s2latlng.hn n:unote: 32macro 'ABSL_INTERNAL_X' defined herel:
l
 In file included from _../src/s2/s1angle.hN  :o12028n | :
n#In file included from udl../src/s2/s2point.hel:
f27i      :
n| In file included from                      ^e../src/s2/s2coder.h 
:A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:I67N:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hR:N29A:
L/usr/local/clang/include/absl/strings/cord.h_:X1017(:F51u:n cwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Call e1017e | , In file included from   s2/s2loop_measures.ccK :Q u18vao:
liIn file included from ,d ../src/s2/s2loop_measures.h V:sQe33uta:
_lcIn file included from ,o ../src/s2/s1angle.hrK:dV28za_:
liuIn file included from nef../src/s2/s2point.h,o :(Vc25Voa:
rlIn file included from du_../src/s2/util/coding/coder.hei:,n 36tT:
eaIn file included from rin../src/s2/base/casts.hla:,l36 :.:
:.In file included from C.o../src/s2/base/logging.h)r :d\z21
I:
      nIn file included from | f        ^/usr/local/clang/include/absl/log/check.ho
*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n432u:l13l:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
dz_  i432n | fcoo)n s{t
       c| h                                                  ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #MdaekfeiCnhee cakbOsplS_tnroinnngu(lTl1  _vN1o,n nTu2l /usr/local/clang/include/absl/container/internal/raw_hash_map.hlv:
2146      ,:| 
3                     ^      :
|              ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/base/nullability.h
:241:22:   146note:  | expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sXl(_innosnenrutl_lo r__Naosnsniuglnl,
       i| n                     ^s
ert_or_asIn file included from ss2/s2loop_measures.cci:g18n:
_In file included from i../src/s2/s2loop_measures.hm:p33l:
,In file included from  ../src/s2/s1angle.hc:o28In file included from n:
s2/s2latlng_rect_bounder.ccsIn file included from :t../src/s2/s2point.h18&::
,25In file included from  :
../src/s2/s2latlng_rect_bounder.hcIn file included from :o../src/s2/util/coding/coder.h21n::
s36In file included from t:
../src/s2/s2latlng.h&In file included from :,../src/s2/base/casts.h32 ::
t36In file included from r:
../src/s2/s1angle.huIn file included from :e../src/s2/base/logging.h28,::

21In file included from       :
../src/s2/s2point.h| In file included from :  ^/usr/local/clang/include/absl/log/check.h27
::
37/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :
:../src/s2/s2coder.hIn file included from 133:/usr/local/clang/include/absl/log/internal/check_impl.h:23:52:
21:In file included from :
 /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.hnote: ::expanded from macro 'ABSL_INTERNAL_X'43367
::
56In file included from :  /usr/local/clang/include/absl/status/internal/status_internal.h 133:warning:  | 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :

/usr/local/clang/include/absl/strings/cord.h : 1049   : 43356  | :     warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
 A B  S1049 L  | _  I  Ns Tt E RaN tAi Lc _  AbT oT oRl I  BG UeT t EF _lC aA tP AT u Ux R( Ea Db _sB lY: (: tch o ir sd )_) i,n  cto ne srt  n ca hl a:r *:  C oa brs d lR _e pn * o n an bu s lll  _ ne o xn pn\ur
lt      el| x                                                    ^tr
e)p/usr/local/clang/include/absl/container/internal/common.h ,:
{31      
:|       9                                                       ^| :                                                       ^
 
note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_true' defined here:/usr/local/clang/include/absl/base/nullability.h
241::241   22:31:22 |  #:note: dexpanded from macro 'absl_nonnull' e
fnote:   expanded from macro 'absl_nonnull'i241
n | e#   dA241eBf | S#iLnd_eefI NiaTnbEseRl N_AanLbo_snIlnF_un_ltolrn nuu_leNl(oi nf_n_Nusloanltn
iu      sl| f                     ^li

e      d| ,                     ^ 
...) if_In file included from ss2/s2latlng_rect_bounder.cca:t18i:
sIn file included from f../src/s2/s2latlng_rect_bounder.hi:e21d:

In file included from       ../src/s2/s2latlng.h| :        ^32
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2lax_polygon_shape.cc:
:/usr/local/clang/include/absl/strings/cord.h18::
1050In file included from :../src/s2/s2lax_polygon_shape.h45::36 :
In file included from warning: ../src/s2/s2polygon.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h1050: | 146 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
         146  |      A B S L _ I N TaEbRsNlA:L:_sXt(riinnsge_rvti_eowr*_ aasbssilg_nn,o ninnuslelr tf_roarg_maesnsti)g;n
_      i| m                                            ^p
l,/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t &note: ,expanded from macro 'absl_nonnull' 
co  n241s | t#&d,e ftirnuee ,a
b      s| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from _
s2/s2loop_measures.ccn:o  n18147n:
 | uIn file included from  l../src/s2/s2loop_measures.h l:  33 _:
 N In file included from o ../src/s2/s1angle.hn :n 28u l:
 l 
In file included from        ../src/s2/s2point.h |  :                     ^ 25
 :
 In file included from f../src/s2/util/coding/coder.ha:l36s:
eIn file included from ,../src/s2/base/casts.h :A36B:
SIn file included from L../src/s2/base/logging.h_:I21N:
In file included from TIn file included from s2/s2latlng_rect_bounder.ccE/usr/local/clang/include/absl/log/check.h:R:18N37:
A:
In file included from LIn file included from ../src/s2/s2latlng_rect_bounder.h_/usr/local/clang/include/absl/log/internal/check_impl.h:S:21I21:
N:
In file included from G../src/s2/s2latlng.hL/usr/local/clang/include/absl/log/internal/check_op.h:E:32_451:
A:In file included from R1../src/s2/s1angle.hG::( 28):
)warning: In file included from ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h

:      27| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  In file included from 
451../src/s2/s2coder.h | :A/usr/local/clang/include/absl/container/internal/raw_hash_map.h23B::
S133In file included from L:/usr/local/clang/include/absl/status/status.h_47:L:67O :
Gnote: _In file included from expanded from macro 'ABSL_INTERNAL_X'I/usr/local/clang/include/absl/status/internal/status_internal.h
N:T29E  R:
133N/usr/local/clang/include/absl/strings/cord.h | A: L1054_ D:E F37I N:E _  Mwarning:  Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]K E
_ C  HAE1054CBK | _ OSP L_ S_T I RN TIaNEGb_RsENXlTAE:RLN:_(cbAoToroTld)R;_
IiB      nUt| T^eE
r_nCa/usr/local/clang/include/absl/log/internal/check_op.hAlP::T:449UCR:oEr31Dd_:RBe Ypnote: (*t expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'hai
bss)l)_  ,n 449o n |  n  u l  l e  r xe pt e, r
 n        |                                      ^t 
 e m/usr/local/clang/include/absl/base/nullability.h p: l241a : t22 e:    cnote:  expanded from macro 'absl_nonnull'o\
n
  s      241t|  |                                               ^~~~ #
dcehfairn*/usr/local/clang/include/absl/container/internal/raw_hash_map.he : a146ab:bs3sl:l_ n_warning: nopassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]on
nn/usr/local/clang/include/absl/container/internal/raw_hash_map.hun:ul135ll:l 16M :_a Nknote: oexpanded from macro 'ABSL_INTERNAL_X'en
nCuhle  lc135k
 | O       p|                       ^S 
t r i n g (    t h\i
s      )| )                              ^)
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_In file included from 22As2/s2latlng_rect_bounder.ccT::T 18Rnote: :
Iexpanded from macro 'absl_nonnull'In file included from B
../src/s2/s2latlng_rect_bounder.hU:T  21E241:
_ | In file included from L#../src/s2/s2latlng.hId:Fe32Ef:
TiIn file included from In../src/s2/s1angle.hMe:E 28_a:
BbIn file included from Os../src/s2/s2point.hUl:N_27Dn:
 oIn file included from n{../src/s2/s2coder.h n: u23l l:
  _In file included from N o/usr/local/clang/include/absl/status/status.h n: n67u :
 lIn file included from l /usr/local/clang/include/absl/status/internal/status_internal.h 
:       29 | :
                      ^/usr/local/clang/include/absl/strings/cord.h 
: 1061 : 34 :   warning:  In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s2/s2loop_measures.cc
 : 18   :
1061 In file included from  |   ../src/s2/s2loop_measures.h  \:v
o33      i:
| d               ^In file included from  
C../src/s2/s1angle.ho/usr/local/clang/include/absl/container/internal/common.hp::y2832T:
:oIn file included from 9A../src/s2/s2point.h:r: r25note: amacro 'ABSL_INTERNAL_IF_false' defined herey:

SIn file included from l../src/s2/util/coding/coder.h   o:32w36 | P#:
adIn file included from te../src/s2/base/casts.hhf(:icn36hea:
 rAIn file included from *B../src/s2/base/logging.h SaLb:_sI21lN_:
TnEIn file included from oRn/usr/local/clang/include/absl/log/check.hNnA:uLl37_lI:
 FdIn file included from _sf/usr/local/clang/include/absl/log/internal/check_impl.hta):l s21ceo:
(ni/usr/local/clang/include/absl/log/internal/check_op.hs:ft_451;s
:a      1t| i:                                 ^s 
fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.he
:d241/usr/local/clang/include/absl/log/internal/check_op.h,: :22.450:.: .25note: )expanded from macro 'absl_nonnull': 
_ _  Vnote: 241Aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | _#
AdReG  fSi450_n_ | e
        a | b        ^s 
l _ n oxn,n uxl,l  c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2loop_measures.cc149: | 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
 In file included from In file included from  s2/s2latlng_rect_bounder.cc../src/s2/s1angle.h : :18 28:
 :
In file included from  In file included from ../src/s2/s2latlng_rect_bounder.h ../src/s2/s2point.h: :21 25:
 :
In file included from  In file included from ../src/s2/s2latlng.ht../src/s2/util/coding/coder.h:r:32u36:
e:
In file included from ,In file included from ../src/s2/s1angle.h ../src/s2/base/casts.h:A:28B36:
S:
In file included from LIn file included from ../src/s2/s2point.h_../src/s2/base/logging.h:I:27N21:
T:
In file included from EIn file included from ../src/s2/s2coder.hR/usr/local/clang/include/absl/log/check.h:N:23A37:
L:
In file included from _In file included from /usr/local/clang/include/absl/status/status.hS/usr/local/clang/include/absl/log/internal/check_impl.h:I:67N21:
G:
In file included from L/usr/local/clang/include/absl/status/internal/status_internal.hE/usr/local/clang/include/absl/log/internal/check_op.h:_:29A452:
R:/usr/local/clang/include/absl/strings/cord.hG1:(:1078) :)33;warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]       
warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                  ^
  
452 |  /usr/local/clang/include/absl/container/internal/raw_hash_map.hA1078:B | 120 S:L 9_a:bL sOnote: Glmacro 'ABSL_INTERNAL_X' defined here_:I
N:TcE  RoN120rA | Ld_#D_diEeFnfItieNnEr_nMeAaK lEA_:CBH:ESCCKL_o_rOIPd_NSRTeTEpRR*NI AaNLb_GsXl_(E_FXnuoTnnEcnR,u NlCl(a ilTlnaekte6e,R4 _etK)p;Q
(u)      a l| c,^o n
VsQ/usr/local/clang/include/absl/log/internal/check_op.htu&:a;449l
:,      31 | :K                                ^ V
anote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/base/nullability.hu
:e241,:   22V449:V |  a note: lexpanded from macro 'absl_nonnull' u
ee,   x241Tt | a#eidrlne,f  i.tn.ee. m)a pb\sl
alt      _e| n         ^oc
nonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull MakeCheckOpSIn file included from ts2/s2latlng_rect_bounder.ccr:i18n:
gIn file included from (../src/s2/s2latlng_rect_bounder.h : 21 :
\In file included from 
../src/s2/s2latlng.h      :| 32                              ^:

In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
b/usr/local/clang/include/absl/strings/cord.hs:l1079/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n:33o148n::n u3lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
 warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] N
1079o | n  n 148u l | la
 b       sA| lB:                     ^S:
Lc_oIrNdT_EiRnNtAeLIn file included from r_s2/s2loop_measures.ccnXa:(l18i:n:
:sIn file included from Ce../src/s2/s2loop_measures.hor:rt33d_:
RoIn file included from er../src/s2/s1angle.hp_:*a28 s:
asIn file included from bi../src/s2/s2point.hsg:ln25_,:
n In file included from oin../src/s2/util/coding/coder.hnn:suel36rl:
t _In file included from To../src/s2/base/casts.har:k_36ea:
RsIn file included from es../src/s2/base/logging.hpi:(g21)n:
 _&In file included from i&m/usr/local/clang/include/absl/log/check.h;p:
l37      ,:
|                                  ^In file included from c
/usr/local/clang/include/absl/log/internal/check_impl.ho/usr/local/clang/include/absl/base/nullability.h:n:s21241t:
:&/usr/local/clang/include/absl/log/internal/check_op.h22,:: 452 c:note: oexpanded from macro 'absl_nonnull'1n
:s   twarning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]& | ,
# /usr/local/clang/include/absl/log/internal/check_op.hdte:rf450ui:en,25e
:       a | bnote:   ^sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
l
_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:  o133450n: | n 52 u : l  l note: x expanded from macro 'ABSL_INTERNAL_X',_
N ox  n,133n  | uc lo nl 
s t        | c h                     ^a 
r *   aAbBsSlL__nIoNnTnEuRlNlA)L
_      A| T                        ^T
RI/usr/local/clang/include/absl/base/nullability.hB:U241T:E22_:C Anote: Pexpanded from macro 'absl_nonnull'T
UR  E241D | _#BdYe(ftihnies )a)b,s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
   \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:In file included from 9s2/s2latlng_rect_bounder.cc:: 18:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/s2latlng_rect_bounder.h
:21:
In file included from    ../src/s2/s2latlng.hIn file included from 31:s2/s2loop_measures.cc | 32#::
d18In file included from e:
../src/s2/s1angle.hfIn file included from :i../src/s2/s2loop_measures.h28n::
e33In file included from  :
../src/s2/s2point.hAIn file included from :B../src/s2/s1angle.h27S::
L28In file included from _:
../src/s2/s2coder.hIIn file included from :N../src/s2/s2point.h23T::
E25In file included from R:
/usr/local/clang/include/absl/status/status.hNIn file included from :A../src/s2/util/coding/coder.h67L::
_36In file included from I:
/usr/local/clang/include/absl/status/internal/status_internal.hFIn file included from :_../src/s2/base/casts.h29t::
r36/usr/local/clang/include/absl/strings/cord.hu:
:eIn file included from 1116(../src/s2/base/logging.h:i:37f21:_:
 sIn file included from warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.ht
:i37s:
f In file included from i1116e/usr/local/clang/include/absl/log/internal/check_impl.h | d :,  21c.:
o./usr/local/clang/include/absl/log/internal/check_op.hn.s:)t 453 i:cfr1_c:s_ aitnwarning: ittype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sef
rinea  dl
453:       | :A| BCS        ^rL
c_CLoOrGd_SItNaTtEeRIn file included from *Ns2/s2lax_polygon_shape.cc A:La_18bD:
sEIn file included from lF../src/s2/s2lax_polygon_shape.hI_:nN36uE:
_lMIn file included from Al../src/s2/s2polygon.hKa:Eb29l_:
eCIn file included from  H/usr/local/clang/include/absl/container/flat_hash_map.hME:aC45yK:
b/usr/local/clang/include/absl/container/internal/raw_hash_map.h_e:OG148Pe:_tS3CT:rR cIwarning: CN'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]Go
_rEdXST  tE148Ra | tN e ((A)uBi ScnLo_tnIs6Nt4T;E_
Rt      N)| A                                    ^;L

_      X/usr/local/clang/include/absl/base/nullability.h| (^:i
257n:/usr/local/clang/include/absl/log/internal/check_op.hs23:e:449r :tnote: 31_expanded from macro 'absl_nullable':o
 r  _note: 257expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a | 
s#sd  ie449gfn | i , n eexit naesbersrnl tt__neourml_pllaaasbtsleie g cn_o_Nniumslptll a,bc hlcaeor
n*      s | ta                      ^&b
,s lc_onnosntn&u,l lt rMuaek,e
C      h| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
In file included from k  s2/s2latlng_rect_bounder.ccO149:p | 18 S:
 tIn file included from  r../src/s2/s2latlng_rect_bounder.h i: n21 g:
(  In file included from   ../src/s2/s2latlng.h  :\ 32
 :
       In file included from |                                ^../src/s2/s1angle.h 
: 28 /usr/local/clang/include/absl/base/nullability.h:
 :In file included from  241../src/s2/s2point.ht::r2227u::
e In file included from note: ,expanded from macro 'absl_nonnull'../src/s2/s2coder.h 
:A23B  :
S241In file included from L | /usr/local/clang/include/absl/status/status.h_#:dI67eN:
fTIn file included from iE/usr/local/clang/include/absl/status/internal/status_internal.hnR:eN29 A:
a/usr/local/clang/include/absl/strings/cord.hbL:_s1120lS:I_30Nn:Go LnEwarning: n_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]uA
lRlG  (1120)_ | )N ;o 
vn      on| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~udl
 lC
/usr/local/clang/include/absl/container/internal/raw_hash_map.ho      :p| 133y                     ^:T
47o:A rnote: rexpanded from macro 'ABSL_INTERNAL_X'a
yImp  In file included from l133(s2/s2loop_measures.cc | c :h a18 r :
*  In file included from  a../src/s2/s2loop_measures.h b: s 33l :
_AIn file included from nBo../src/s2/s1angle.hSnL:n_u28IlN:
lTIn file included from  E../src/s2/s2point.hdR:sN25tA:
)L In file included from _cA../src/s2/util/coding/coder.hoT:nT36sRt:
I;In file included from B
U../src/s2/base/casts.h      T:| E36                             ^_:

CIn file included from A../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.hP::T21241U:
:RIn file included from 22E/usr/local/clang/include/absl/log/check.h:D: _37note: Bexpanded from macro 'absl_nonnull':
Y
(In file included from   t/usr/local/clang/include/absl/log/internal/check_impl.h241h: | i#21sd):
e/usr/local/clang/include/absl/log/internal/check_op.h)f:,i453n :e 1  :a  b swarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
_ /usr/local/clang/include/absl/log/internal/check_op.hn o: n450 n: u25 l: l    note: _ expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'N 
o n n   u 450l l |   
          |  \                     ^ 

       x| ,                                              ^~~~ 
x, cons/usr/local/clang/include/absl/container/internal/raw_hash_map.ht: 148c:h3a:r *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
b/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l135_:n16o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l)
        | 135                        ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull't
hi  s241) | )#)d eAfBiSnLe_ AaTbTsRlI_BnUoTnEn_uLlIlF E_TNIoMnEn_uBlOlU
N      D|                       ^{
                              \
      |                ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2loop_measures.cc::3118::
9In file included from :../src/s2/s2loop_measures.h :note: 33macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from ../src/s2/s1angle.h:   2831:
 | In file included from #../src/s2/s2point.hd:e25f:
iIn file included from n../src/s2/util/coding/coder.he: 36A:
BIn file included from S../src/s2/base/casts.hL:_36I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:I37F:
_In file included from t/usr/local/clang/include/absl/log/internal/check_impl.hr:u21e:
(/usr/local/clang/include/absl/log/internal/check_op.hi:f454_:s1a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied  ,454  | .A.B.S)L _iLfO_Gs_aItNiTsEfRiNeAdL
_      D| E        ^F
INE_MAKE_CHECK_In file included from Os2/s2lax_polygon_shape.ccP:_18S:
TIn file included from R../src/s2/s2lax_polygon_shape.hI:N36G:
_In file included from E../src/s2/s2polygon.hX:T29E:
RIn file included from N/usr/local/clang/include/absl/container/flat_hash_map.h(:f45l:
o/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:t148):;3
:       | warning: ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/log/internal/check_op.h:449:31  :148  | note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
ABS  L449_ | I N TeExRtNeArLn_ Xt(eimnpsleartte_ ocro_nassts icghna,r *i nasbesrlt__noorn_nauslsli gMna_kiemCphle,c kcOopnSsttr&i,n gc(o n s t\&
,       | t                              ^r
ue/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 note:   expanded from macro 'absl_nonnull'149
 |     241  |  # d e f i n e   a b s l _ n otnrnuuel,l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_SINGLEIn file included from _s2/s2loop_measures.ccA:R18G:
(In file included from )../src/s2/s2loop_measures.h):;33
:
      In file included from | ../src/s2/s1angle.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
28:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::25135:
:In file included from 11../src/s2/util/coding/coder.h:: 36note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/base/casts.h:36:
  In file included from 135../src/s2/base/logging.h | : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :t21h:
i/usr/local/clang/include/absl/log/internal/check_op.hs:)454):)1 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_A/usr/local/clang/include/absl/log/internal/check_op.hT:T450R:I25B:U Tnote: Eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
LI  F450E | T I M E _ B OxU,N Dx ,{  c o n s t   c h a r *   a b s l _ n o n n u l l ) 
        |                          ^ 
\
/usr/local/clang/include/absl/base/nullability.h      :| 241          ^~~~:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:L152O:G52_:I Nwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
RNA  L152_ | D E F I N E _ M A K E _ C H E C K _ OfPa_lSsTeR,I NAGB_SELX_TIENRTNE(RdNoAuLb_lSeI)N;G
L      E| _^A
RG/usr/local/clang/include/absl/log/internal/check_op.h(:)449):;31
:       | note:                                                    ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:  120449: | 9 :  enote: xmacro 'ABSL_INTERNAL_X' defined heret
ern   120t | e#mdpelfaitnee  cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_Fnuonncn,u lCla lMlaekee,C hKeQcukaOlp,S tVrQiunagl(,   K V\a
l      u| e                              ^,
 V/usr/local/clang/include/absl/base/nullability.hV:a241l:u22e:,  note: Texpanded from macro 'absl_nonnull'a
il  ,241  | .#.d.e)f i\n
e       | a        ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 | In file included from  s2/s2loop_measures.cc :A18B:
SIn file included from L../src/s2/s2loop_measures.h_:I33N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hX:(25i:
nIn file included from s../src/s2/util/coding/coder.he:r36t:
_In file included from o../src/s2/base/casts.hr:_36a:
sIn file included from s../src/s2/base/logging.hi:g21n:
,In file included from  /usr/local/clang/include/absl/log/check.hi:n37s:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.ht:_21o:
r/usr/local/clang/include/absl/log/internal/check_op.h_:a456s:s1i:g nwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
mpl  ,456  | cAoBnSsLt_&L,O G&_&I,N TfEaRlNsAeL,_
D      E| F  ^I
NE/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:M133A:K52E:_ Cnote: Hexpanded from macro 'ABSL_INTERNAL_X'E
CK_  O133P | _ S T R I N G _ E X TAEBRSNL(_cIhNaTrE)R;N
A      L| _^A
TT/usr/local/clang/include/absl/log/internal/check_op.hR:I449B:U31T:E _note: Cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'A
PTU  R449E | D _ BeYx(ttehrins )t)e,m p l a t e   c o n s t   c h a r *   a b s l _ n o n\n
u      l| l                                                   ^ 
Ma/usr/local/clang/include/absl/container/internal/common.hk:e32C:h9e:c knote: Omacro 'ABSL_INTERNAL_IF_false' defined herep
Str   i32n | g#(d e f i\n
e       | A                              ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_I  F241_ | f#adlesfei(nief _asbastli_snfoinendu,l l. ._.N)o n_n_uVlAl_
A      R| G                     ^S
__
      |         ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2lax_polygon_shape.cc../src/s2/s2point.h::1825:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/util/coding/coder.h::3636:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/base/casts.h::2936:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/base/logging.h::4521:
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/log/check.h151::373:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]21
:
/usr/local/clang/include/absl/log/internal/check_op.h:456  :1511 | :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
S/usr/local/clang/include/absl/log/internal/check_op.hL:_450I:N25T:E Rnote: Nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'A
L_  X450( | i n s e r t _xo,r _xa,s sciognns,t  icnhsaerr*t _aobrs_la_snsoingnnu_lilm)p
l      ,|                          ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241&:,22 :& &note: ,expanded from macro 'absl_nonnull' 
fa  l241s | e#,d
e      f| i  ^n
e /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b135s:l16_:n onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull   135_ | N o n n u l l 
        |                       ^t
his))) ABSL_ATTRIBUTE_LIFETIME_BIn file included from Os2/s2loop_measures.ccU:N18D:
 In file included from {../src/s2/s2loop_measures.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h\:
37      :
| In file included from                ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/log/internal/check_op.h::32457::91::  note: warning: macro 'ABSL_INTERNAL_IF_false' defined heretype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   32   | 457# | dAeBfSiLn_eL OAGB_SILN_TIENRTNEARLN_ADLE_FIIFN_Ef_aMlAsKeE(_iCfH_EsCaKt_iOsPf_iSeTdR,I N.G._.E)X T_E_RVNA(_uAnRsGiSg_n_e
d       | c        ^h
ar);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern templIn file included from as2/s2lax_polygon_shape.cct:e18 :
cIn file included from o../src/s2/s2lax_polygon_shape.hn:s36t:
 In file included from c../src/s2/s2polygon.hh:a29r:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_map.ha:b45s:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n154o:n51n:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
Mak  e154C | h e c k O p S t r i n g (       \ 
       t| r                              ^u
e,/usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dSeIfNiGnLeE _aAbRsGl(_)n)o;n
n      u| l                                                  ^l
 _/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:o120n:n9u:l lnote: 
macro 'ABSL_INTERNAL_X' defined here      
|                      ^
  120 | #defIn file included from is2/s2loop_measures.ccn:e18 :
AIn file included from B../src/s2/s2loop_measures.hS:L33_:
IIn file included from N../src/s2/s1angle.hT:E28R:
NIn file included from A../src/s2/s2point.hL:_25X:
(In file included from F../src/s2/util/coding/coder.hu:n36c:
,In file included from  ../src/s2/base/casts.hC:a36l:
lIn file included from e../src/s2/base/logging.he:,21 :
KIn file included from Q/usr/local/clang/include/absl/log/check.hu:a37l:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hV:Q21u:
a/usr/local/clang/include/absl/log/internal/check_op.hl:,457 :K1V:a lwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
, /usr/local/clang/include/absl/log/internal/check_op.hV:V450a:l25u:e ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'T
ai  l450, |   . . . )   \x
,       | x        ^,
 const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/log/internal/check_op.h::153458::31::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    153458 |  |  A BASBLS_LL_OIGN_TIENRTNEARLN_AXL(_iDnEsFeIrNtE__oMrA_KaEs_sCiHgEnC,K _iOnPs_eSrTtR_IoNrG__aEsXsTiEgRnN_(icmopnls,t  csotnds:t:&s,t r&i&n,g &f)a;l
s      e| ,^

      | /usr/local/clang/include/absl/log/internal/check_op.h  ^:
449:31/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 133:note: 52expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
 note:   expanded from macro 'ABSL_INTERNAL_X'449
 |     e133x | t e r n   t e m p l aAtBeS Lc_oInNsTtE RcNhAaLr_*A TaTbRsIlB_UnToEn_nCuAlPlT UMRaEkDe_CBhYe(ctkhOipsS)t)r,i n g (       \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241\ | 
#      d| e                                                   ^f
in/usr/local/clang/include/absl/container/internal/common.he: 32a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_false' defined hereo
nnu   l32l |  #_dNeofninnuel lA
B      S| L                     ^_
INTERNAL_IF_false(ifIn file included from _s2/s2loop_measures.ccs:a18t:
iIn file included from s../src/s2/s2loop_measures.hf:i33e:
dIn file included from ,../src/s2/s1angle.h :.28.:
.In file included from )../src/s2/s2point.h :_25_:
VIn file included from A../src/s2/util/coding/coder.h_:A36R:
GIn file included from S../src/s2/base/casts.h_:_36
:
      In file included from | ../src/s2/base/logging.h        ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458In file included from :s2/s2lax_polygon_shape.cc1::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2lax_polygon_shape.h
:36/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 450../src/s2/s2polygon.h::2529::
 In file included from note: /usr/local/clang/include/absl/container/flat_hash_map.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
45:
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h450: | 153 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
x,   x153, |   c oAnBsStL _cIhNaTrE*R NaAbLs_lX_(nionnsneurltl_)o
r      _| a                        ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241,: 22i:n snote: eexpanded from macro 'absl_nonnull'r
t_  o241r | _#adsesfiignne_ iambpsll,_ ncoonnnsutl&l,  _&N&o,n nfuallls
e      ,| 
                     ^      
|   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |          In file included from  s2/s2loop_measures.cct:h18i:
sIn file included from )../src/s2/s2loop_measures.h):)33 :
AIn file included from B../src/s2/s1angle.hS:L28_:
AIn file included from T../src/s2/s2point.hT:R25I:
BIn file included from U../src/s2/util/coding/coder.hT:E36_:
LIn file included from I../src/s2/base/casts.hF:E36T:
IIn file included from M../src/s2/base/logging.hE:_21B:
OIn file included from U/usr/local/clang/include/absl/log/check.hN:D37 :
{In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 459 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       459  |  A B S L _ L O G _ I\N
T      E| R               ^N
AL/usr/local/clang/include/absl/container/internal/common.h_:D31E:F9I:N Enote: _macro 'ABSL_INTERNAL_IF_true' defined hereM
AKE   _31C | H#EdCeKf_iOnPe_ SATBRSILN_GI_NETXETRENRANL(_cIoFn_sttr uaeb(silf:_:ssattriisnfgi_evdi,e w.&.).;)
       i| f^_
sa/usr/local/clang/include/absl/log/internal/check_op.ht:i449s:f31i:e dnote: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      
|         ^
  449 |   extern templatIn file included from es2/s2lax_polygon_shape.cc :c18o:
nIn file included from s../src/s2/s2lax_polygon_shape.ht: 36c:
hIn file included from a../src/s2/s2polygon.hr:*29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l45_:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n153n:u3l:l  warning: M'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
keChec  k153O | p S tArBiSnLg_(I N T E\R
N      A| L                              ^_
X(/usr/local/clang/include/absl/base/nullability.hi:n241s:e22r:t _note: oexpanded from macro 'absl_nonnull'r
_a  s241s | i#gdne,f iinnes earbts_lo_rn_oansnsuilgln __iNmopnln,u lclo
n      s| t                     ^&
, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from   s2/s2loop_measures.cc154: | 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.ht:r36u:
eIn file included from ,../src/s2/base/casts.h :A36B:
SIn file included from L../src/s2/base/logging.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/check.hR:N37A:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hS:I21N:
G/usr/local/clang/include/absl/log/internal/check_op.hL:E459_:A1R:G (warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
/usr/local/clang/include/absl/log/internal/check_op.h      :| 450                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
25: /usr/local/clang/include/absl/container/internal/raw_hash_map.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'135
:11:   450note:  | expanded from macro 'ABSL_INTERNAL_X' 
      135  | x ,   x ,   c o n s tt hcihsa))r)*  AaBbSsLl__AnToTnRnIuBlUlT)E
_      L| I                        ^F
ET/usr/local/clang/include/absl/base/nullability.hI:M241E:_22B:O Unote: Nexpanded from macro 'absl_nonnull'D
 {   241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l\l

            | |           ^~~~                     ^

In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRI/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:G156_:E52X:T Ewarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
(co  n156s | t   c h a r *   a b s l _ n o n n u lfla)l;s
e      ,|  ^A
BS/usr/local/clang/include/absl/log/internal/check_op.hL:_449I:N31T:E Rnote: Nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'A
L_S  I449N | G L Ee_xAtReGr(n) )t;e
m      p| l                                                   ^a
te/usr/local/clang/include/absl/container/internal/raw_hash_map.h :c120o:n9s:t  note: cmacro 'ABSL_INTERNAL_X' defined here
har  *120  | a#bdself_innoen nAuBlSlL _MIaNkTeECRhNeAcLk_OXp(SFturnicn,g (C a l l\e
e      ,|                                ^K
Qu/usr/local/clang/include/absl/base/nullability.ha:l241,: 22V:Q unote: aexpanded from macro 'absl_nonnull'l
,   K241V | a#ldueef,i nVeV aalbusel,_ nToaninlu,l l. ._.N)o n\n
u      l| l        ^

      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull)/usr/local/clang/include/absl/container/internal/raw_hash_map.h;:
155      :| 3                                                                 ^:
 warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
241:22:   155note:  | expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnIn file included from Res2/s2latlng_rect_bounder.ccN :Aa18Lb:
_sIn file included from Xl../src/s2/s2latlng_rect_bounder.h(_:nio21nn:
snIn file included from ue../src/s2/s2latlng.hlr:lt 32__:
oNIn file included from or../src/s2/s1angle.h_n:na28us:
lsIn file included from li../src/s2/s2point.hg
:n      27,| :
                      ^In file included from i
../src/s2/s2coder.hn:s23e:
rIn file included from t/usr/local/clang/include/absl/status/status.hIn file included from _:os2/s2loop_measures.cc67r::
_18aIn file included from :
s/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from s:../src/s2/s2loop_measures.hi29:g:
33n:
/usr/local/clang/include/absl/strings/cord.h_In file included from :i../src/s2/s1angle.h1140m::p2849l:
:,In file included from   ../src/s2/s2point.hwarning: c:otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25n
:
sIn file included from t../src/s2/util/coding/coder.h& ,:1140 36 | & :
& ,In file included from   ../src/s2/base/casts.h t :r u36 e :
, 
In file included from        ../src/s2/base/logging.h | :   ^ 21
 :
 In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h /usr/local/clang/include/absl/log/check.h: :133 37: :
52 In file included from : /usr/local/clang/include/absl/log/internal/check_impl.h  :note:  expanded from macro 'ABSL_INTERNAL_X'21 
:
 /usr/local/clang/include/absl/log/internal/check_op.h   :133 460 |   :   66   :C  o warning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] d 
R /usr/local/clang/include/absl/base/nullability.he :pA241EB:xSt22Le_:rI nNnote: aTexpanded from macro 'absl_nonnull'lE
*R N  aAb241Ls_ | lA#_dTenfToRinInnBuUelTl E _arCbeAsplP_)nT;oUn
Rn      Eu| D                                                ^l_
BlY (_tN/usr/local/clang/include/absl/base/nullability.hho:ni241sn:)u22l):,l  
note:  expanded from macro 'absl_nonnull'       
 |                         ^ 241 
 |  # d e In file included from f is2/s2loop_measures.cc n :e  18 a:
 b In file included from s l../src/s2/s2loop_measures.h _ :n o33 n:
 n In file included from u l../src/s2/s1angle.h\l
:       _28| N                                                   ^:
o
nIn file included from n/usr/local/clang/include/absl/container/internal/common.hu../src/s2/s2point.h:l:31l25:
:
9      In file included from :| ../src/s2/util/coding/coder.h                      ^:note: 
macro 'ABSL_INTERNAL_IF_true' defined here36
:
In file included from ../src/s2/base/casts.h   :3136 | :
#In file included from d../src/s2/base/logging.he:f21:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from L:s2/s2latlng_rect_bounder.cc_21:I:
18N/usr/local/clang/include/absl/log/internal/check_op.h:
T:In file included from 460E../src/s2/s2latlng_rect_bounder.h:R:N121A::
L In file included from _warning: ../src/s2/s2latlng.hItype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:F
32_:
tIn file included from r  ../src/s2/s1angle.hu460:e | 28(A:
BiSIn file included from Lf../src/s2/s2point.h__:sL27aO:
tGIn file included from _iI../src/s2/s2coder.hsN:fT23iE:
eRIn file included from dN/usr/local/clang/include/absl/status/status.hA,: L67._:
.DIn file included from .E/usr/local/clang/include/absl/status/internal/status_internal.h)F: I29iN:
E/usr/local/clang/include/absl/strings/cord.hf_:_M1146sA:aK10tE:i_ CsHwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ei
eCdK
_       O1146| P |         ^C_
oSrTdRRIeNpG*_ EaXbTIn file included from sEs2/s2lax_polygon_shape.cclR:_N18n(:
ocIn file included from no../src/s2/s2lax_polygon_shape.hnn:su36tl:
l In file included from c h../src/s2/s2polygon.haN:er29w*:
E In file included from xa/usr/local/clang/include/absl/container/flat_hash_map.htb:es45rl:
n_/usr/local/clang/include/absl/container/internal/raw_hash_map.han:ol155Rn:en3up:(l alwarning: b)'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes];s
l
:      :|   s^155t
 | r /usr/local/clang/include/absl/log/internal/check_op.hi n:AgB450_Sv:Li_25eIw:N  Tdnote: EaRexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'tNa
A,L
  _      X450| (         ^ | i 
n s/usr/local/clang/include/absl/base/nullability.h e:r 241t :_ 22xo,: r _note: xaexpanded from macro 'absl_nonnull's,
 sc  io241gn | n#s,d te ifncisnheaer rt*a_b osral_b_sanls_onsniongnunln_ulli lm_p)Nlo
,n       ncu| o                        ^lnl
s
t/usr/local/clang/include/absl/base/nullability.h      &:| ,                     ^241 
&:&22,:  tnote: rexpanded from macro 'absl_nonnull'u
e,  
241       | | #  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
ef  i156n | e   a b s l _ n o n n u l l   _ N o nfnaullsle
,       | A                     ^B
SL_INTERNAL_SINGLE_ARG());
      In file included from | s2/s2loop_measures.cc                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
18:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/s2loop_measures.h::13333::
47In file included from :../src/s2/s1angle.h :note: 28expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2point.h:25:
  In file included from 133../src/s2/util/coding/coder.h | : 36 :
 In file included from  ../src/s2/base/casts.h : 36 In file included from :
 s2/s2latlng_rect_bounder.cc In file included from : ../src/s2/base/logging.h18A::
B21In file included from S:
../src/s2/s2latlng_rect_bounder.hLIn file included from :_/usr/local/clang/include/absl/log/check.h21I::
N37In file included from T:
../src/s2/s2latlng.hEIn file included from :R/usr/local/clang/include/absl/log/internal/check_impl.h32N::
A21In file included from L:
../src/s2/s1angle.h_/usr/local/clang/include/absl/log/internal/check_op.h:A:28T461:
T:In file included from R1../src/s2/s2point.hI::B 27Uwarning: :
Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from E
../src/s2/s2coder.h_:C23A  :
P461In file included from T | /usr/local/clang/include/absl/status/status.hAUB:RS67LE_:
DLIn file included from _O/usr/local/clang/include/absl/status/internal/status_internal.hBG:_YI29(N:
tT/usr/local/clang/include/absl/strings/cord.hhE:RiN1159sA:L)_17)D:E,F I Nwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E 
_ M  A 1159K  | E _i nC HlE i CnK _e O  PC_ oS Tr dR IR eN Gp _* E  Xa bT sE\Rl
_N      (n
| o                                              ^~~~      n
| n^u
ll/usr/local/clang/include/absl/log/internal/check_op.h :/usr/local/clang/include/absl/container/internal/raw_hash_map.hN449:e:155w31:E:3x :tnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'ewarning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
n  a/usr/local/clang/include/absl/container/internal/raw_hash_map.h449l: | R 135 e:pe16(x:t
 e      note: r| expanded from macro 'ABSL_INTERNAL_X'                ^n

 t  /usr/local/clang/include/absl/base/nullability.he135:m | 241p : l22 a: t e  note:  cexpanded from macro 'absl_nonnull'o 
n    s241t  |  t#chdhiesaf)ir)n*)e  a AbasBblSs_Lnlo_n_nAnuToTlnRlnIu BlUMlaTk eE_C_NLhoIneFcnkEOuTlpIlSM
tE      r_| Bi                     ^On
gU(N D   {\ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n               ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l32l: 9_:N onote: nmacro 'ABSL_INTERNAL_IF_false' defined heren
ull   
32       | | #                     ^d
efineIn file included from  s2/s2loop_measures.ccA:B18S:
LIn file included from _../src/s2/s2loop_measures.hI:N33:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hI:F25_:
fIn file included from a../src/s2/util/coding/coder.hl:s36e:
(In file included from i../src/s2/base/casts.hf:_36s:
aIn file included from t../src/s2/base/logging.hi:s21f:
iIn file included from e/usr/local/clang/include/absl/log/check.hd:,37 :
.In file included from ./usr/local/clang/include/absl/log/internal/check_impl.h.:)21 :
_/usr/local/clang/include/absl/log/internal/check_op.h_:V462A:_24A:R Gwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
_
        | 462        ^ | 
    const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2latlng_rect_bounder.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2latlng_rect_bounder.h25::
21In file included from :
In file included from ../src/s2/util/coding/coder.hIn file included from s2/s2lax_polygon_shape.cc:../src/s2/s2latlng.h:36:18:
32:
In file included from :
In file included from ../src/s2/base/casts.hIn file included from ../src/s2/s2lax_polygon_shape.h:../src/s2/s1angle.h:36:36:
28:
In file included from :
In file included from ../src/s2/base/logging.hIn file included from ../src/s2/s2polygon.h:../src/s2/s2point.h:21:29:
27:
In file included from :
In file included from /usr/local/clang/include/absl/log/check.hIn file included from /usr/local/clang/include/absl/container/flat_hash_map.h:../src/s2/s2coder.h:37:45:
23:
In file included from :
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from ::/usr/local/clang/include/absl/status/status.h15821:::
6751/usr/local/clang/include/absl/log/internal/check_op.h:
::In file included from  462/usr/local/clang/include/absl/status/internal/status_internal.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:24
29::
   /usr/local/clang/include/absl/strings/cord.h158warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 1183 
: /usr/local/clang/include/absl/base/nullability.h47 :: 241  :warning:  22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :
   note:  expanded from macro 'absl_nonnull'  
1183  |       241   |  # d e  f ti r nu ee  ,  a A bBs lS_ Ln o_nIn uNl Tl  E _R NN oAn Ln u_ lS lI
 N       G | L                      ^E _
 A R G (In file included from  )s2/s2loop_measures.cc ):C;o18
r:
      dIn file included from | R                                                  ^../src/s2/s2loop_measures.he
:p33/usr/local/clang/include/absl/container/internal/raw_hash_map.h*:
: In file included from 120a../src/s2/s1angle.h:b:9s28:l:
 _In file included from nnote: u../src/s2/s2point.hmacro 'ABSL_INTERNAL_X' defined herel:
l25a:
  bIn file included from 120l../src/s2/util/coding/coder.h | e#: dr36ee:
fpIn file included from i)../src/s2/base/casts.hn
:e       36| A:
                                              ^BIn file included from 
S../src/s2/base/logging.hL:/usr/local/clang/include/absl/base/nullability.h_21:I:
257NIn file included from :T/usr/local/clang/include/absl/log/check.h23E::R37 N:
note: Aexpanded from macro 'absl_nullable'LIn file included from 
_/usr/local/clang/include/absl/log/internal/check_impl.hX  :(257F21 | u#:
n/usr/local/clang/include/absl/log/internal/check_op.hdc:e,461f :iC1na:el  lawarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bes
,l _  KnQ461uul | aAllBa,Sb Ll_VLeOQG u__aINluN,lT lEKaRVbNalAlLe_uDe
E,      F | I                      ^NV
VEa_lMuAeK,E _TCaHiElC,K _.O.P._)S T\R
I      N| G        ^_
EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: In file included from warning: s2/s2loop_measures.ccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
18:
In file included from ../src/s2/s2loop_measures.h:  33157:
 | In file included from  ../src/s2/s1angle.h :A28B:
SIn file included from L../src/s2/s2point.h_:I25N:
TIn file included from E../src/s2/util/coding/coder.hR:N36A:
LIn file included from _../src/s2/base/casts.hX:(36i:
nIn file included from s../src/s2/base/logging.he:r21t:
_In file included from o/usr/local/clang/include/absl/log/check.hr:_37a:
sIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hi:g21n:
,/usr/local/clang/include/absl/log/internal/check_op.h :i463n:s1e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_a  s463s | iAgBnS_Li_mLpOlG,_ IcNoTnEsRtN&A,L _&D&E,F ItNrEu_eM,A
K      E| _  ^C
HE/usr/local/clang/include/absl/container/internal/raw_hash_map.hC:K133_:O52P:_ Snote: Texpanded from macro 'ABSL_INTERNAL_X'R
ING  _133E | X T E R N ( 
        |  ^ 
AB/usr/local/clang/include/absl/log/internal/check_op.hS:L449_:I31N:T Enote: Rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'N
AL_  A449T | T R IeBxUtTeEr_nC AtPeTmUpRlEaDt_eB Yc(otnhsits )c)h,a r *   a b s l _ n o n n u l l   M a k In file included from e s2/s2latlng_rect_bounder.cc C: h18e c:
k In file included from O ../src/s2/s2latlng_rect_bounder.h\p:S
21t      :
r| In file included from                                                    ^i../src/s2/s2latlng.hn
:g32(/usr/local/clang/include/absl/container/internal/common.h :
: In file included from  31\../src/s2/s1angle.h:
:9      28:| :
                               ^In file included from note: 
../src/s2/s2point.hmacro 'ABSL_INTERNAL_IF_true' defined here:
/usr/local/clang/include/absl/base/nullability.h27::
   241In file included from 31:../src/s2/s2coder.h | 22:#:23d :
note: eIn file included from expanded from macro 'absl_nonnull'f/usr/local/clang/include/absl/status/status.hi
:n67e  :
 241In file included from A | /usr/local/clang/include/absl/status/internal/status_internal.hB#:dSe29Lf:
i_n/usr/local/clang/include/absl/strings/cord.hIe:N 1222TaEb:sR52lN_:An Lowarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nIn
Fu_lt lr1222u  | e_i(Nniolfni_nnseua ltlvio
si      fd| i                      ^eC
do,r d.:In file included from .:s2/s2loop_measures.cc.I):n l18iif:
n_In file included from es../src/s2/s2loop_measures.hRa:et33pi:
:sIn file included from :fS../src/s2/s1angle.hiw:ead28p
(:
      CIn file included from | o../src/s2/s2point.h        ^r:
d25::
:In file included from I../src/s2/util/coding/coder.hn:l36i:
nIn file included from eIn file included from ../src/s2/base/casts.hRs2/s2lax_polygon_shape.cce::p3618*:
:
 In file included from In file included from a../src/s2/base/logging.h../src/s2/s2lax_polygon_shape.hb::s2136l:
:
_In file included from In file included from n/usr/local/clang/include/absl/log/check.h../src/s2/s2polygon.ho::n3729n:
:
uIn file included from In file included from l/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/flat_hash_map.hl:: 2145r:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/raw_hash_map.hh::s464157):: 263{::
        warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning:                                                    ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]


  464/usr/local/clang/include/absl/base/nullability.h | :    241 157:  | 22 c: o Annote: Bsexpanded from macro 'absl_nonnull'St
 L  _u241nI | sN#iTgdnEeRefNdi AcnLeh_ aXa(rbi*s nlas_benrsotln__nnouroln_lna us_slNilo)gn;nn,
u       lil| n                         ^
s
      e| r/usr/local/clang/include/absl/base/nullability.h                     ^t:
_241o:r22_:a ssignote: nexpanded from macro 'absl_nonnull'_
im  p241l | ,# dceofnisnte& ,a b&s&l,_ ntornuneu,l
l       | _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~N
on  n158u | l l 
        |                       ^ 
       In file included from  s2/s2loop_measures.cc : 18 :
 In file included from t../src/s2/s2loop_measures.hr:u33e:
,In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hI:N25T:
EIn file included from R../src/s2/util/coding/coder.hN:A36L:
_In file included from S../src/s2/base/casts.hI:N36G:
LIn file included from E../src/s2/base/logging.h_:A21R:
GIn file included from (/usr/local/clang/include/absl/log/check.h):)37;:
In file included from 
In file included from s2/s2latlng_rect_bounder.cc      /usr/local/clang/include/absl/log/internal/check_impl.h:| :18                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~21:

:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2latlng_rect_bounder.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h:464:21:133:
26:In file included from :47../src/s2/s2latlng.h ::warning:  32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: :

expanded from macro 'ABSL_INTERNAL_X'In file included from /usr/local/clang/include/absl/base/nullability.h
../src/s2/s1angle.h::24128  ::
13322In file included from  | :../src/s2/s2point.h  : note: 27expanded from macro 'absl_nonnull' :

 In file included from  ../src/s2/s2coder.h   : 24123  | :
 #In file included from  d/usr/local/clang/include/absl/status/status.hAe:Bf67Si:
LnIn file included from _e/usr/local/clang/include/absl/status/internal/status_internal.hI :Na29Tb:
Es/usr/local/clang/include/absl/strings/cord.hRl:N_1230An:Lo20n_:nA uTwarning: lTtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lR
 I_BN Uo1230Tn | nEui_nlCll
Ai      Pn| Te                     ^U R
cEoDn_sBtIn file included from Y s2/s2loop_measures.cc(c:thh18ai:
rs*In file included from ) ../src/s2/s2loop_measures.h)a:,b33 s :
l In file included from _ n../src/s2/s1angle.h u: l28 l:
 aIn file included from  b../src/s2/s2point.h l: e25  :
 C In file included from o ../src/s2/util/coding/coder.hr :d :36 ::
 IIn file included from  n ../src/s2/base/casts.hl i: n36 e:
 RIn file included from  e../src/s2/base/logging.h\p
::      21:| :
d                                              ^~~~In file included from a
/usr/local/clang/include/absl/log/check.ht:a37(:
)In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/raw_hash_map.hc::o21157n:
:s/usr/local/clang/include/absl/log/internal/check_op.h3t:: 463 {:warning: 
1passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      :
|  /usr/local/clang/include/absl/container/internal/raw_hash_map.h                   ^warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
135
:/usr/local/clang/include/absl/base/nullability.h16::  257 463:note:  | 23Aexpanded from macro 'ABSL_INTERNAL_X':B
 Snote: Lexpanded from macro 'absl_nullable'  _
135L |    O257 G |  #_ Id Ne fT iE n Re  NtahAbisLsl_)_)Dn)uE FlAlIBNaSbELl__eA MT_TANRuKIElBl_UaTCbEHl_EeCLK
I_      FO| PE_                      ^TS
ITMREI_NBGO_UENXDT E{R N ( 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 450 : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |      In file included from   s2/s2latlng_rect_bounder.cc  :  18  :
 xIn file included from \,../src/s2/s2latlng_rect_bounder.h
 :      x21| ,:
               ^ In file included from 
c../src/s2/s2latlng.ho/usr/local/clang/include/absl/container/internal/common.h:n:32s31:
t:In file included from  9../src/s2/s1angle.hc:h: a28note: r:
macro 'ABSL_INTERNAL_IF_true' defined here*In file included from 
 ../src/s2/s2point.ha:   b2731s:
 | lIn file included from _#../src/s2/s2coder.hndo:nen23fu:
ilIn file included from nl/usr/local/clang/include/absl/status/status.he): 
67A      :
B| In file included from S                        ^/usr/local/clang/include/absl/status/internal/status_internal.hL
:_29I/usr/local/clang/include/absl/base/nullability.h:
N:/usr/local/clang/include/absl/strings/cord.hT241:E:1234R22:N:20A :Lnote:  _warning: expanded from macro 'absl_nonnull'Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
F
_  t241r  | u1234e# | (diienflf_iisnanet eics oafnibsestdl _,c nho.a.nr.n*) u ailbfls __ls_Nanotoninnsunfulilelld
 
C            o| | r                     ^        ^d

::InlineRep::as_charIn file included from ss2/s2lax_polygon_shape.cc(:)18 :
cIn file included from In file included from o../src/s2/s2lax_polygon_shape.hs2/s2loop_measures.ccn::s36t18:
 :
In file included from {In file included from ../src/s2/s2polygon.h
../src/s2/s2loop_measures.h:      :29| 33:
                   ^:
In file included from 
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h:45:28:
241:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:In file included from :22../src/s2/s2point.h157::: 253note: :
:expanded from macro 'absl_nonnull'In file included from  
../src/s2/util/coding/coder.hwarning: :  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]36241
:
 | In file included from #../src/s2/base/casts.hd  e:157f36 | i:
 n eIn file included from A B../src/s2/base/logging.haSb:Ls_21lI_:
NnTIn file included from oEn/usr/local/clang/include/absl/log/check.hRnN:uA37lLl:
_ XIn file included from _(/usr/local/clang/include/absl/log/internal/check_impl.hNio:nns21neu:
rlt/usr/local/clang/include/absl/log/internal/check_op.hl_
:o      465r| _:                     ^a1
s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
, in  s465e | rAtB_SoLr__LaOsGs_iIgNnT_EiRmNpAlL,_ DcEoFnIsNtE&_,M A&In file included from K&s2/s2latlng_rect_bounder.ccE,: _18tC:
HrIn file included from Eu../src/s2/s2latlng_rect_bounder.heC:,K21_
O:
      PIn file included from | _../src/s2/s2latlng.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~S:
T32R  :
I158In file included from N | ../src/s2/s1angle.h G:_ E28 X:
 TIn file included from  E../src/s2/s2point.h R: N27( :
 cIn file included from  o../src/s2/s2coder.h n: s23 t:
  In file included from  v/usr/local/clang/include/absl/status/status.h o: i67 d:
t*In file included from r /usr/local/clang/include/absl/status/internal/status_internal.hua:eb29,s:
l _/usr/local/clang/include/absl/strings/cord.hAn:oB1239Sn:nLu38_l:Il N)warning: T;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E

R      N| A L^1239_
 | SiIn/usr/local/clang/include/absl/log/internal/check_op.hNl:Gi449LnE:e_31 Aa:RbG s(lnote: )expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':):
;c
o        r| 449d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | _
i n/usr/local/clang/include/absl/container/internal/raw_hash_map.ht :eex135rt:ne11ar:ln : note: t:expanded from macro 'ABSL_INTERNAL_X'eC
mopr  lda135Rt | e ep  * c o a nbs st l  _c n hotanhrni*us l)alb)s )Cl o_ArBndS:oL:_nInAunTllTilRnI eBMRUaeTkpEe:_C:LahIseF_cEtkTrOIepMeES(_t)rB
iO      nUg| N                                     ^(D
   /usr/local/clang/include/absl/base/nullability.h{ : \241 
:       22 | :                              ^  
note:  expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h 
 :   241 241 : |  #22 d: e  f note: iexpanded from macro 'absl_nonnull' n 
e     a 241b  | s# l d_e fn io nn ne u  l\la
 b      _s| N          ^~~~lo
_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2latlng_rect_bounder.cc465: | 18A:
BIn file included from S../src/s2/s2latlng_rect_bounder.hL:_21L:
OIn file included from G../src/s2/s2latlng.h_:I32N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hD:E27F:
IIn file included from N../src/s2/s2coder.hE:_23M:
AIn file included from K/usr/local/clang/include/absl/status/status.hE:_67C:
HIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hC:K29_:
O/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/raw_hash_map.hP::_1245161S::T38R52:I: Nwarning: Gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] _warning: 
Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]X
T E1245  R | 161iN | (nc l oi nn se t   a vb os li :d :* c  oa brs d l__ in nfotnaenlrsunela,ll ):;A:B
CS      oL| r                                                                 ^_dI
RN/usr/local/clang/include/absl/base/nullability.heT:pE*241R :NaA22bLs:_l S_Innote: Nuexpanded from macro 'absl_nonnull'Gl
LlEa  _bA241lRe | G (#Cd)o)er;df
i:      n:| eI                                                   ^ n
alb/usr/local/clang/include/absl/container/internal/raw_hash_map.his:nl120e_:Rn9eo:pn :note: n:macro 'ABSL_INTERNAL_X' defined hereut
rlel  e 120_( | N)#o
dn      en| f                                     ^ui
nle/usr/local/clang/include/absl/base/nullability.h l:A
257B      :S| 23L                     ^:_
 Inote: Nexpanded from macro 'absl_nullable'T
ER  NIn file included from 257As2/s2loop_measures.cc | L:#_18dX:
e(In file included from fF../src/s2/s2loop_measures.hiu:nn33ec:
 ,In file included from a b../src/s2/s1angle.hCs:al28l_:
lnIn file included from eu../src/s2/s2point.hel,:l a25KbQ:
luIn file included from ea../src/s2/util/coding/coder.h l_:,N 36uV:
lQlIn file included from uaa../src/s2/base/casts.hbll:,e36 
K:
      VIn file included from | a                      ^../src/s2/base/logging.hl
:u21e:
,In file included from  /usr/local/clang/include/absl/log/check.hV:V37a:
lIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.he:,21 :
T/usr/local/clang/include/absl/log/internal/check_op.ha:i465l:,66 :. .warning: .type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 \/usr/local/clang/include/absl/base/nullability.h
:      241| :        ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from In file included from s2/s2latlng_rect_bounder.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2latlng_rect_bounder.h../src/s2/s2point.h::2125:
:
In file included from In file included from ../src/s2/s2latlng.h../src/s2/util/coding/coder.h::3236:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/base/casts.h::2836:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/base/logging.h::2721:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/check.h::2337:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/check_impl.h::6721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.h::46529::
1/usr/local/clang/include/absl/strings/cord.h:: 1258warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]465
 | AB S1258L | _iLnOlGi_nIeN T/usr/local/clang/include/absl/container/internal/raw_hash_map.hcE:Ro160rN:dA3_L:i_ nDwarning: tEpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]eF
rInN  Ea160l_ | : M: CAAKoBrESdL_R_eCIpNHFTlEEaRCtNK*A_ LOa_bPXs(_liS_TnRnsIoenNrnGtu__lolErX
_T      aE| s                                   ^Rs
Ni(gc/usr/local/clang/include/absl/base/nullability.hno:,n241s :it22n :vso einote: rexpanded from macro 'absl_nonnull'dt
_*  o 241ra | b_#asdslesf_iignnneo_ niamnbpsull,l_ nl&o&)n,n; u
cl      oln|  ^s_t
N&o/usr/local/clang/include/absl/log/internal/check_op.h,n :nfua450ll:ls
25e      ,:| 
                     ^       
note: | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'  ^

  /usr/local/clang/include/absl/container/internal/raw_hash_map.h450: | 133 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X'x
, x  ,133  | c o n s t   c h a r *A BaSbLs_lI_NnToEnRnNuAlLl_)A
T      T| R                        ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) ,a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9:In file included from  s2/s2latlng_rect_bounder.cc:note: 18macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from ../src/s2/s2latlng_rect_bounder.h:21   :
32In file included from  | ../src/s2/s2latlng.h#:d32e:
fIn file included from i../src/s2/s1angle.hn:e28 :
AIn file included from B../src/s2/s2point.hS:L27_:
IIn file included from N../src/s2/s2coder.hT:E23R:
NIn file included from A/usr/local/clang/include/absl/status/status.hL:_67I:
FIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hf:a29l:
s/usr/local/clang/include/absl/strings/cord.he:(1268i:fIn file included from 51_s2/s2loop_measures.cc:s: a18warning: t:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iIn file included from 
s../src/s2/s2loop_measures.hf:i 33e1268:
d | ,In file included from i ../src/s2/s1angle.hn.l:.i28.n):
e  In file included from _v_../src/s2/s2point.hoVi:Ad_25 AC:
RoGIn file included from rSd../src/s2/util/coding/coder.h_::_:36
I:
      nIn file included from | l../src/s2/base/casts.h        ^i:
n36e:
RIn file included from e../src/s2/base/logging.hp::21::
EIn file included from In file included from m/usr/local/clang/include/absl/log/check.hs2/s2lax_polygon_shape.ccp::l3718a:
:
cIn file included from In file included from e/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2lax_polygon_shape.hT::r2136e:
:
e/usr/local/clang/include/absl/log/internal/check_op.hIn file included from (:../src/s2/s2polygon.hC502:o:29r1:
d:In file included from R /usr/local/clang/include/absl/container/flat_hash_map.hewarning: :ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]45*
:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.ha  :b502160s | :AlB3_SnL:_o LnOwarning: nGpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u_
IlNl   T160Er | Re Np A,A
LB      _S| CLH                                                  ^_E
ICNK/usr/local/clang/include/absl/base/nullability.h_T:EO241RP:N_22AI:ML _note: PXexpanded from macro 'absl_nonnull'L((
iCn  hs241ee | rc#tkd__EeofQr,i_n aes= s=ai)bg
snl      ,_|  ni^on
nsneu/usr/local/clang/include/absl/log/internal/check_op.hrlt:l_488 o:_r32N_:oan snsnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'ilg
ln
_        i| m488                     ^p | 
l ,  i&n&l,i nceo ncsotn&s,t efxaplrs ec,o
n      s| t  ^ 
ch/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:r135*: 16a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
nul  l135a | b l e   n a m e # # Itmhpils(In file included from ) s2/s2latlng_rect_bounder.cc ):) 18  :
 AIn file included from  B../src/s2/s2latlng_rect_bounder.h S :L 21_ :
A In file included from T ../src/s2/s2latlng.hT :R 32I :
B In file included from  U../src/s2/s1angle.h T:E 28_\:

LIn file included from I      ../src/s2/s2point.hF| :E                               ^27T
:
IIn file included from M/usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.hE::_25723B::
O23In file included from U:/usr/local/clang/include/absl/status/status.hN :Dnote: 67expanded from macro 'absl_nullable' :

{In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h   : 25729  | :
 # /usr/local/clang/include/absl/strings/cord.hd : e1275f i:n 51 e:    awarning: b stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] l
 _ n  u 1275l l | a bil ne l  i n_ Neu l  vl ao ib\dl
 e      C
| o                     ^r| 
d                      ^:/usr/local/clang/include/absl/container/internal/common.h
::I32n:l9i:n enote: Rmacro 'ABSL_INTERNAL_IF_false' defined heree
p:In file included from    :s2/s2loop_measures.cc32E: | m#18pdl:
eafIn file included from ci../src/s2/s2loop_measures.hen:Ter33 eA:
eB(In file included from SCL../src/s2/s1angle.ho_r:IdN28RTe:
EpIn file included from R*../src/s2/s2point.hN :Aa25Lb:
_sIn file included from IlF../src/s2/util/coding/coder.h__n:foa36nln:
sueIn file included from l(l../src/s2/base/casts.hi f:r_36esp:
a,tIn file included from 
i../src/s2/base/logging.h      s:| f21                                                  ^i:

eIn file included from d/usr/local/clang/include/absl/base/nullability.h,/usr/local/clang/include/absl/log/check.h: :241.37:.:
22.In file included from :)/usr/local/clang/include/absl/log/internal/check_impl.h  :note: _expanded from macro 'absl_nonnull'21_
V:
A  /usr/local/clang/include/absl/log/internal/check_op.h_241A: | R502#Gd:Se_1f_:i
 n      ewarning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]         ^
a
b/usr/local/clang/include/absl/log/internal/check_op.hs:l489_:n47o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l _  N489o | n n u l l 
       c| o                     ^n
stIn file included from  s2/s2lax_polygon_shape.ccT:118&:
 In file included from v../src/s2/s2lax_polygon_shape.h1:,36 :
cIn file included from o../src/s2/s2polygon.hn:s29t:
 In file included from T/usr/local/clang/include/absl/container/flat_hash_map.h2:&45 :
v/usr/local/clang/include/absl/container/internal/raw_hash_map.h2:,163 :c51o:n swarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
cha  r163* |   a b s l _ n oIn file included from  ns2/s2latlng_rect_bounder.cc n:u l18 l:
  In file included from  e../src/s2/s2latlng_rect_bounder.h x: p21 r:
t eIn file included from  x../src/s2/s2latlng.htt:r)32u :
e{In file included from , ../src/s2/s1angle.h  :A 28B :
S In file included from L\../src/s2/s2point.h_
:I      27N| :
T                                              ^In file included from E
../src/s2/s2coder.hR:N/usr/local/clang/include/absl/base/nullability.h23A::
L241In file included from _:/usr/local/clang/include/absl/status/status.hS22:I:67N :
Gnote: In file included from Lexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.hE
:_29A  :
R241/usr/local/clang/include/absl/strings/cord.hG | :#(d1282)e:)f47;i:
n       ewarning: |                                                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a

b/usr/local/clang/include/absl/container/internal/raw_hash_map.hs: l1201282_: | n9io:nn lnnote: imacro 'ABSL_INTERNAL_X' defined hereun
el   vl120o  | _i#dNd eoCnfonirnude: l:AIlBnS
lLi      _nI| e                     ^NRT
eEpR:N:ASLe_tXT(rFeuen(cC,o rCdaRlelpe*e ,a bKsQlu_anlo,n nVuQlula lr,e pK,V
a      l| u                                              ^e
, /usr/local/clang/include/absl/base/nullability.hV:V241a:l22u:e ,note:  expanded from macro 'absl_nonnull'T
ai  l241, |  #.d.e.f)i n\e
       a| b        ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlIn file included from is2/s2latlng_rect_bounder.ccn:e18 :
cIn file included from o../src/s2/s2latlng_rect_bounder.hn:s21t:
eIn file included from x../src/s2/s2latlng.hp:r32 :
cIn file included from o../src/s2/s1angle.hn:s28t:
 In file included from c../src/s2/s2point.hh:a27r:
*In file included from  ../src/s2/s2coder.ha:/usr/local/clang/include/absl/container/internal/raw_hash_map.hb23:s:
162lIn file included from :_/usr/local/clang/include/absl/status/status.h3n::u67 lwarning: l:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]aIn file included from 
b/usr/local/clang/include/absl/status/internal/status_internal.hl:  e29162 :
 | n/usr/local/clang/include/absl/strings/cord.h a: m1290Ae:B#54S#:LI _mwarning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]pN
lT(E  R 1290N  | Ai L n_l X i( ni e n  sv eor it d_  oC r o _ r\ad
s:s      :iI| g                               ^nnl
,i /usr/local/clang/include/absl/base/nullability.hni:en257Rse:epr23:t::_ Soenote: rexpanded from macro 'absl_nullable't_T
ars  ese257iOg | rnE#_midpmtepfyl(i,C noe&r &d,aRb ecspo*ln_ snautbl&s,ll a_bfnlauel l_sNlualelb,la
eb       l| r  ^ee
p
/usr/local/clang/include/absl/container/internal/raw_hash_map.h,      :
| 133                      ^      :
| 52                                                     ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X':
257:In file included from 23s2/s2loop_measures.cc  ::133 18note:  | expanded from macro 'absl_nullable':
 
In file included from    ../src/s2/s2loop_measures.h 257 : |  #33 d :
e fIn file included from  i../src/s2/s1angle.h nA:eB 28Sa:
Lb_In file included from sI../src/s2/s2point.hlN:_T25nE:
uRIn file included from lN../src/s2/util/coding/coder.hlAa:Lb_36lAe:
T TIn file included from _R../src/s2/base/casts.hNIu:BlU36lTa:
Eb_In file included from lC../src/s2/base/logging.heA:
P21      T:
| UIn file included from                       ^R/usr/local/clang/include/absl/log/check.h
E:D37_:
BIn file included from Y/usr/local/clang/include/absl/log/internal/check_impl.h(:t21h:
i/usr/local/clang/include/absl/log/internal/check_op.hs:)502):,1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      498  |           \ 
i      n| t                                                   ^ 
v1/usr/local/clang/include/absl/container/internal/common.h,: 32i:n9t:  vnote: 2macro 'ABSL_INTERNAL_IF_false' defined here,
 c   o32n | s#tdIn file included from  es2/s2latlng_rect_bounder.ccfc:ih18na:
re*In file included from   ../src/s2/s2latlng_rect_bounder.hAa:Bb21Ss:
LlIn file included from __../src/s2/s2latlng.hIn:No32Tn:
EnIn file included from Ru../src/s2/s1angle.hlNl: A28eLx:
_pIn file included from Ir../src/s2/s2point.hFt:_e27fx:
atIn file included from l)../src/s2/s2coder.hs :e{23( :
i In file included from f /usr/local/clang/include/absl/status/status.h_ :s 67a :
t In file included from i /usr/local/clang/include/absl/status/internal/status_internal.hs :f 29 i:
 e/usr/local/clang/include/absl/strings/cord.h d : ,1301  :. 56.\:.
 )warning:        type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| _
                                  ^_
V A/usr/local/clang/include/absl/base/nullability.h1301_: | Ai241RnG:lSi22_n:_e 
       vnote: | expanded from macro 'absl_nonnull'o        ^
i
d   241C | o#rdde:fIn file included from :is2/s2lax_polygon_shape.ccnI:ne18l :
iaIn file included from nb../src/s2/s2lax_polygon_shape.hes:Rl36e_:
pnIn file included from :o../src/s2/s2polygon.h:n:Cn29ou:
mlIn file included from ml/usr/local/clang/include/absl/container/flat_hash_map.hi :t_45TN:
ro/usr/local/clang/include/absl/container/internal/raw_hash_map.henen:u(l162lc
:o      3n| :s                     ^ t
warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]C
ord  R162e | p *  AaBbSsLl__InNuTlElRaNbAlLe_ Xo(lidn_sreerpt,_
o      r| _                                                       ^a
ss/usr/local/clang/include/absl/base/nullability.hi:g257n:,23 :i nnote: sexpanded from macro 'absl_nullable'e
rt  _257o | r#_daesfsiingen _aibmspll_,n u&l&l,a bcloen s_tN&u,l lfaabllsee
,      
|                             ^| 
  ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2latlng_rect_bounder.cc  :13518 | :
 In file included from  ../src/s2/s2latlng_rect_bounder.h : 21 :
 In file included from  ../src/s2/s2latlng.h : 32 :
tIn file included from h../src/s2/s1angle.hi:s28):
)In file included from )../src/s2/s2point.h :A27B:
SIn file included from L../src/s2/s2coder.h_:A23T:
TIn file included from R/usr/local/clang/include/absl/status/status.hI:B67U:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.h_:L29I:
F/usr/local/clang/include/absl/strings/cord.hE:T1302I:M50E:_ Bwarning: Otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
ND  {1302  |                                                           \ 
        |                 ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9C:o rnote: dmacro 'ABSL_INTERNAL_IF_true' defined hereR
ep*    31a | b#sdle_fnionnen uAlBlS Lr_eIpN,T
E      R| N                                                 ^A
L_/usr/local/clang/include/absl/base/nullability.hI:F241_:t22r:u enote: (expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende,  a.b..s)l _info_nsnautlils f_iNeodn
n      u| l        ^l

      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, In file included from is2/s2latlng_rect_bounder.ccn:s18e:
rIn file included from t../src/s2/s2latlng_rect_bounder.h_:o21r:
_In file included from a../src/s2/s2latlng.hs:s32i:
gIn file included from n../src/s2/s1angle.h_:i28m:
pIn file included from l../src/s2/s2point.h,: 27&:
&In file included from ,../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht:&67,:
 In file included from f/usr/local/clang/include/absl/status/internal/status_internal.ha:l29s:
e/usr/local/clang/include/absl/strings/cord.h,:
1312      :| 38  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]163
 |      1312  |  i n l i n e   a b s l : :tcroured,_ iAnBtSeLr_nIaNlT:E:RCNoArLd_RSeIpN*G LaEb_sAlR_Gn(u)l)l;a
b      l| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Cor/usr/local/clang/include/absl/container/internal/raw_hash_map.hd::135::I11n:l inote: nexpanded from macro 'ABSL_INTERNAL_X'e
Rep  :135: | c l e a r ( )   { 
       t| h                                     ^i
s)/usr/local/clang/include/absl/base/nullability.h):)257 :A23B:S Lnote: _expanded from macro 'absl_nullable'A
TT  R257I | B#UdTeEf_iLnIeF EaTbIsMlE__nBuOlUlNaDb l{e   _ N u l l a b l e 
        |                        ^ 
               \
      |           ^~~~
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | /usr/local/clang/include/absl/container/internal/raw_hash_map.hi:n165l:i52n:e  warning: vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
id   C165o | r d : : I n l i n e R e p : : C o p yfTaolAsrer,a yA(BcShLa_rI*N TaEbRsNlA_Ln_oSnInNuGlLlE _dAsRtG)( )c)o;n
s      t|                                                     ^{

      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h                                               ^:
120:9:/usr/local/clang/include/absl/base/nullability.h :241note: :macro 'ABSL_INTERNAL_X' defined here22
: note:   expanded from macro 'absl_nonnull'120
 | #  d241e | f#idneef iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( F_uNnocn,n uClall
l      e| e                     ^,
 KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | AB/usr/local/clang/include/absl/container/internal/raw_hash_map.hS:L166_:L3O:G _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
TERN  A166L | _ C HAEBCSKL__OIPN_TIEMRPNLA(LC_hXe(cikn_sNeEr,t _!o=r)_
a      s| s^i
gn,/usr/local/clang/include/absl/log/internal/check_op.h :i488n:s32e:r tnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'o
r_a  s488s | i g ni_nilmipnle,  c&o&n,s tceoxnpsrt &c,o ntsrtu ec,h
a      r| *  ^ 
ab/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l133_:n52u:l lnote: aexpanded from macro 'ABSL_INTERNAL_X'b
le   n133a | m e # # I m p l (    A B S L _ I N T E R N A L _ A T T R\I
B      U| T                               ^E
_CA/usr/local/clang/include/absl/base/nullability.hP:T257U:R23E:D _note: Bexpanded from macro 'absl_nullable'Y
(t  h257i | s#)d)e,f i n e   a b s l _ n u l l a b l e   _ N u l l a b l\e

            | |                                                    ^                      ^

/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #deIn file included from fs2/s2loop_measures.cci:n18e:
 In file included from A../src/s2/s2loop_measures.hB:S33L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L25_:
IIn file included from F../src/s2/util/coding/coder.h_:t36r:
uIn file included from e../src/s2/base/casts.h(:i36f:
_sIn file included from a../src/s2/base/logging.ht:i21s:
fIn file included from i/usr/local/clang/include/absl/log/check.he:d37,:
 In file included from ./usr/local/clang/include/absl/log/internal/check_impl.h.:.21):
 /usr/local/clang/include/absl/log/internal/check_op.hi:f503_:s1a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ie/usr/local/clang/include/absl/log/internal/check_op.hd:
489      :| 47        ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       cIn file included from os2/s2lax_polygon_shape.ccn:s18t:
 In file included from T../src/s2/s2lax_polygon_shape.h1:&36 :
vIn file included from 1../src/s2/s2polygon.h,: 29c:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hs:t45 :
T/usr/local/clang/include/absl/container/internal/raw_hash_map.h2:&166 :v32:,  warning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nst c  h166a | r *  AaBbSsLl__InNoTnEnRuNlAlL _eXx(pirntseexrtt)_ o{r _ a s s i\g
n      ,|                                                ^i
ns/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | _#idmepfli,n e& &a,b sclo_nnsotn&n,u ltlr u_eN,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l
        | 167                     ^ | 
                  true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),      In file included from  s2/s2loop_measures.cc : 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from \../src/s2/util/coding/coder.h
:      36| :
                                              ^~~~In file included from 
../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/log/check.h166::373:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]21
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/log/internal/check_op.h::135503::161::  note: warning: expanded from macro 'ABSL_INTERNAL_X'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h  :135497 | : 32 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      t497h | i s )i)n)l iAnBeS Lc_oAnTsTtReIxBpUrT Ec_oLnIsFtE TcIhMaEr_*B OaUbNsDl _{n u  l l a b l e   n a m e # # I m p l (                    \ 
        |                 ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31\:
9      :|                                 ^
note: macro 'ABSL_INTERNAL_IF_true' defined here
/usr/local/clang/include/absl/base/nullability.h:257:   2331: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_uIlFl_atbrluee (_iNfu_lslaatbilsef
i      e| d                      ^,
 ...) if_In file included from ss2/s2loop_measures.cca:t18i:
sIn file included from f../src/s2/s2loop_measures.hi:e33d:

In file included from       ../src/s2/s1angle.h| :        ^28
:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2lax_polygon_shape.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2lax_polygon_shape.h37::
36In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2polygon.h21::
29/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 503/usr/local/clang/include/absl/container/flat_hash_map.h::145::
 /usr/local/clang/include/absl/container/internal/raw_hash_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]166
:3/usr/local/clang/include/absl/log/internal/check_op.h:: 498:warning: 35'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  166 |    498  | A B S L _ I NiTnEtR NvA1L,_ Xi(nitn sve2r,t _coorn_sats scihganr,*  ianbsselr_tn_oonrn_ualsls iegxnp_ritmepxlt,)  &{& ,   c o n s t & ,   t r u e , 
       \| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                                   ^
  167/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i nter uaeb,s lA_BnSoLn_nIuNlTlE R_NNAoLn_nSuIlNlG
L      E| _                     ^A
RG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insertIn file included from _s2/s2latlng_rect_bounder.cco:r18_:
aIn file included from s../src/s2/s2latlng_rect_bounder.hs:i21g:
nIn file included from _../src/s2/s2latlng.hi:m32p:
lIn file included from ,../src/s2/s1angle.h :&28&:
,In file included from  ../src/s2/s2point.h&:&27,:
 In file included from f../src/s2/s2coder.ha:l23s:
eIn file included from ,/usr/local/clang/include/absl/status/status.h :f67a:
lIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.he:,29
:
      | /usr/local/clang/include/absl/strings/cord.h  ^:
1505:41/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 135:warning: 16type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_INTERNAL_X'
 1505 |   i135n | l i n e   v o i d   Ctohrids:):)C)o pAyBTSoLA_rArTaTyRIImBpUlT(Ec_hLaIrF*E TaIbMsEl__BnOoUnNnDu l{l   d s t )   c o n s t   { 
        |                                          ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

      |                ^
  241 | /usr/local/clang/include/absl/container/internal/common.h#:d32e:f9i:n enote:  macro 'ABSL_INTERNAL_IF_false' defined herea
bsl   _32n | o#ndneufliln e_ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:In file included from 18s2/s2latlng_rect_bounder.cc:
:In file included from 18../src/s2/s2lax_polygon_shape.h:
:In file included from 36../src/s2/s2latlng_rect_bounder.h:
:In file included from 21../src/s2/s2polygon.h:
:In file included from 29../src/s2/s2latlng.h:
:In file included from 32/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 45../src/s2/s1angle.h:
:28/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 172../src/s2/s2point.h::4527::
 In file included from ../src/s2/s2coder.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]23
:
In file included from /usr/local/clang/include/absl/status/status.h:  67172:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1514 : 29 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1514A | B S L _ IcNoTrEdR_NiAnLt_eSrInNaGlL:E:_CAoRrGd(R)e)p;*
       a| b                                            ^s
l_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:o120n:n9u:l lnote:  macro 'ABSL_INTERNAL_X' defined heret
ree  )120  | {#
d      e| f                            ^i
ne /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#Xd(eFfuinnce,  aCbaslll_eneo,n nKuQlula l_,N oVnQnuualll,
       K| V                     ^a
lue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:  171504: | 3A:B Swarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
LOG_  I171N | T E RANBASLL__CIHNETCEKR_NOAPL__IXM(PiLn(sCehretc_ko_rL_Ea,s s<i=g)n
,       | i^n
ser/usr/local/clang/include/absl/log/internal/check_op.ht:_488o:r32_:a snote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
gIn file included from n  s2/s2latlng_rect_bounder.cc_488:i | 18m :
p In file included from li../src/s2/s2latlng_rect_bounder.hn,:l i21&n:
&eIn file included from , ../src/s2/s2latlng.h c:&o32&n:
,sIn file included from  t../src/s2/s1angle.hfe:ax28lp:
srIn file included from e ../src/s2/s2point.h,c: o27tn:
rsIn file included from tu../src/s2/s2coder.he :,c23
h:
      aIn file included from | r/usr/local/clang/include/absl/status/status.h  ^*:
 67a/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
b:sIn file included from 133l/usr/local/clang/include/absl/status/internal/status_internal.h:_:52n29:u:
 l/usr/local/clang/include/absl/strings/cord.hnote: l:expanded from macro 'ABSL_INTERNAL_X'a1525
b:l29  e:133   | nwarning:  atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] m
 e #  # 1525 I |   m   p lA( B cSo L r_ dI_ N i T n E t Re NrA nL a_lA : T: TC R oI\r
BdU      RT| e                               ^Ep_
*C AaP/usr/local/clang/include/absl/base/nullability.hbTs:Ul257R_E:nD23o_n:BnY unote: (ltexpanded from macro 'absl_nullable'lh
 itsr  )e)257e,) |  # d  { e
 f       i|                              ^n 
 e /usr/local/clang/include/absl/base/nullability.h  : a241 b: s22 l: _  n note:  uexpanded from macro 'absl_nonnull' l
 l a   b241 l |  e# d \e
_fN      iu| n                                                   ^le
 laa/usr/local/clang/include/absl/container/internal/common.hbb:sl32le:_
9n      :o|  n                      ^note: nmacro 'ABSL_INTERNAL_IF_false' defined here
u
ll    _32N | o#ndneufliln
eIn file included from        s2/s2loop_measures.cc| A                     ^B:
S18L:
_In file included from I../src/s2/s2loop_measures.hN:T33E:
RIn file included from N../src/s2/s1angle.hA:L28_:
IIn file included from F../src/s2/s2point.h_:f25a:
lIn file included from s../src/s2/util/coding/coder.he:(36i:
fIn file included from _../src/s2/base/casts.hs:a36t:
iIn file included from s../src/s2/base/logging.hf:i21e:
dIn file included from ,/usr/local/clang/include/absl/log/check.h :.37.:
.In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h :_21_:
V/usr/local/clang/include/absl/log/internal/check_op.hA:_504A:R1G:S _warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      | /usr/local/clang/include/absl/log/internal/check_op.h        ^:
489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2/s2lax_polygon_shape.cc489: | 18 :
 In file included from In file included from  ../src/s2/s2lax_polygon_shape.hs2/s2latlng_rect_bounder.cc :: 3618 :
:
cIn file included from In file included from o../src/s2/s2polygon.h../src/s2/s2latlng_rect_bounder.hn::s2921t:
:
 In file included from In file included from T/usr/local/clang/include/absl/container/flat_hash_map.h1../src/s2/s2latlng.h:&:45 32:
v:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h1In file included from :,../src/s2/s1angle.h171 ::c283o:
:nIn file included from  s../src/s2/s2point.hwarning: t:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 27
T:
2In file included from   &../src/s2/s2coder.h171 : | v23 2:
 ,In file included from A /usr/local/clang/include/absl/status/status.hBc:So67Ln:
_sIn file included from It/usr/local/clang/include/absl/status/internal/status_internal.hN :Tc29Eh:
Ra/usr/local/clang/include/absl/strings/cord.hNr:A*1530L :_a55Xb:(s ilwarning: n_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sn
eorntn _u1530ol | lr i_nealsxipsrnietg neC,ox ritd)n :{s:e Crh tu n_k oIr t\_
ear      sas| t                                              ^io
grn/usr/local/clang/include/absl/base/nullability.h:_::iCm241hpu:ln,22k I:&t& e,rnote:  expanded from macro 'absl_nonnull'a&t
&o,  r 241(f | c#adolesfneis,nt  etC raobusrled_,*n
 o      an| nb  ^us
lll/usr/local/clang/include/absl/container/internal/raw_hash_map.h_ :_nN135oon:nnu16nl:ul 
note: lexpanded from macro 'ABSL_INTERNAL_X'      l
 | c                     ^  o
135r | d )   { 
        |                                                        ^ 
  t/usr/local/clang/include/absl/base/nullability.hh:i241s:)22):)  note: Aexpanded from macro 'absl_nonnull'B
SL  _241A | T#TdReIfBiUnTeE _aLbIsFlE_TnIoMnEn_uBlOlU N_DN o{n n u l l 
        |                       ^ 
                     \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #deIn file included from fs2/s2loop_measures.cci:n18e:
 In file included from A../src/s2/s2loop_measures.hB:S33L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L25_:
IIn file included from F../src/s2/util/coding/coder.h_:t36r:
uIn file included from e../src/s2/base/casts.h(:i36f:
_In file included from s../src/s2/base/logging.ha:t21i:
sIn file included from f/usr/local/clang/include/absl/log/check.hi:e37d:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h.:.21.:
)/usr/local/clang/include/absl/log/internal/check_op.h :i504f:_1s:a twarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
fi/usr/local/clang/include/absl/log/internal/check_op.he:d497
:      32| :        ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlineIn file included from  s2/s2lax_polygon_shape.ccc:o18n:
sIn file included from t../src/s2/s2lax_polygon_shape.he:x36p:
rIn file included from  ../src/s2/s2polygon.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.h :c45h:
a/usr/local/clang/include/absl/container/internal/raw_hash_map.hr:*171 :a3b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ullab  l171e |   n aAmBeS#L#_IImNpTlE(R N A L _ X ( i n s e r t _ o r _ a s s\i
g      n| ,                               ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e257r:t23_:o rnote: _expanded from macro 'absl_nullable'a
ss  i257g | n#_diemfpiln,e  &a&b,s l&_&n,u lflaalbslee,  _tNruulel,a
b      l| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |                       ^  
172 |        In file included from  s2/s2loop_measures.cc : 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
 In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hI:N25T:
EIn file included from R../src/s2/util/coding/coder.hN:A36L:
_In file included from S../src/s2/base/casts.hI:N36G:
LIn file included from E../src/s2/base/logging.h_:A21R:
GIn file included from (/usr/local/clang/include/absl/log/check.h):)37;:

      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h504::1351::11 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/log/internal/check_op.h:498:35  :135  | note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
     498  |         t h iisn)t) )v 1A,B SiLn_tA TvT2R,I BcUoTnEs_tL IcFhEaTrI*M Ea_bBsOlU_NnDo n{n u l l   e x p r t e x t )   {                              \ 
       \| 
          ^~~~      
|                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from In file included from s2/s2lax_polygon_shape.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/s2point.h::3627:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2coder.h::2923:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/status/status.h::4567:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/status/internal/status_internal.h::17329::
3:/usr/local/clang/include/absl/strings/cord.h :1666warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]48
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  173 |    1666A | BiSnLl_iInNeT ECRoNrAdL _CXo(ridn:s:eArdtv_aonrc_eaAsnsdiRgena,d (iCnhsaerIn file included from rIts2/s2loop_measures.cct_eor:ra18_tao:
srIn file included from s*i../src/s2/s2loop_measures.h g:an33b_:
siIn file included from lm_../src/s2/s1angle.hpnl:o,28n :
n&In file included from u&l../src/s2/s2point.h,l : &25i&t:
,, In file included from 
t../src/s2/util/coding/coder.h      r:| u                                               ^36e
,:
 In file included from f/usr/local/clang/include/absl/base/nullability.h../src/s2/base/casts.ha::l241s36:e:
22,In file included from :
../src/s2/base/logging.h       :note: | expanded from macro 'absl_nonnull'  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~21

:
    In file included from 241174/usr/local/clang/include/absl/log/check.h |  | :# 37d e:
 f In file included from i n/usr/local/clang/include/absl/log/internal/check_impl.h e:   21a b:
 s l /usr/local/clang/include/absl/log/internal/check_op.h_ n: o505 n :n u1 lA:lB  Swarning: _LNtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_oI
nNnTuElR  lN
505A       | LA| _                     ^BSS
ILN_GLLOEG__AIRNGT(E)R)N;A
L      _| C                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~H
ECK/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:O133P:_47I:M Pnote: Lexpanded from macro 'ABSL_INTERNAL_X'(
Che  c133k | _ L T ,   < ) 
       In file included from  | s2/s2latlng_rect_bounder.cc :A^18B
:
SIn file included from L../src/s2/s2latlng_rect_bounder.h_/usr/local/clang/include/absl/log/internal/check_op.h:I:21N488:
T:In file included from E32../src/s2/s2latlng.hR::N 32A:
Lnote: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_../src/s2/s1angle.hA
:T28T:
R  In file included from I488../src/s2/s2point.hB | : U27 T:
iEIn file included from _n../src/s2/s2coder.hlC:iA23nP:
eTIn file included from U /usr/local/clang/include/absl/status/status.hRc:Eo67Dn:
_sIn file included from Bt/usr/local/clang/include/absl/status/internal/status_internal.hYe:(x29tp:
hr/usr/local/clang/include/absl/strings/cord.hi :sc1672o):)n41,s: t In file included from   warning: s2/s2hausdorff_distance_query.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] c:
 h16 a:
r  In file included from  *1672 ../src/s2/s2hausdorff_distance_query.h  | a: i b25snl :
l_ In file included from  i n../src/s2/s2min_distance_targets.hn e  u:l v 33loa :
 i bIn file included from d l../src/s2/s2cell_index.h  C e:o  32r dn:
\:
aIn file included from m:      ../src/s2/s2cell_union.heA| d:#                                              ^~~~#v29a
nI:
cmIn file included from ep/usr/local/clang/include/absl/flags/flag.hl(:C(/usr/local/clang/include/absl/container/internal/raw_hash_map.h40h ::
a 173 r/usr/local/clang/include/absl/flags/commandlineflag.hI: :t3e 163 : r :   a56warning:  t:opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]   r 
 warning:  */usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   : 
\a
135b      :  s| 16                               ^163l:_
 |  n onote: nexpanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.h nbuolo
:ll257    i:135Pta23 | ,   s r:i s  ze Fnote: eexpanded from macro 'absl_nullable' r o m_
 (tt  ahbi s257snl_:b:) | ys)t#td)erfe iisAnBn)eg _a bvs{il
e_      wn|                                          ^vu
all/usr/local/clang/include/absl/base/nullability.hul:ea241,b: l22es :t_ dNnote: :expanded from macro 'absl_nonnull'u:
sl  tl241ra | ib#lndege
*f       ia| nbe                      ^s l
a_bnsoln_nnuolnln uelrlIn file included from r os2/s2loop_measures.cc_r:N)o18;n:

nIn file included from       u../src/s2/s2loop_measures.h| l:                                                       ^l33

:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36241:
:In file included from 22../src/s2/base/casts.h:: 36note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:21  :
241In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s505l:_1n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll/usr/local/clang/include/absl/log/internal/check_op.h :_489N:o47n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l

      |                      ^  
489 |       const T1& v1, ScoLn_sAtT TTR2I&B UvT2E, _cLoInFsEtT IcMhEa_rB*O UaNbDs l{_ n o n n u l l   e x p r t e x tIn file included from  )s2/s2hausdorff_distance_query.cc  : {16  :
  In file included from   ../src/s2/s2hausdorff_distance_query.h  :  25 \:
 
In file included from        ../src/s2/s2min_distance_targets.h | :                                              ^ 33 
:
\In file included from /usr/local/clang/include/absl/base/nullability.h
../src/s2/s2cell_index.h:      :241| 32               ^::

22In file included from :../src/s2/s2cell_union.h /usr/local/clang/include/absl/container/internal/common.h:note: :expanded from macro 'absl_nonnull'2932
:
:In file included from 9  /usr/local/clang/include/absl/flags/flag.h:241:  | 40note: #:
macro 'ABSL_INTERNAL_IF_false' defined hered
/usr/local/clang/include/absl/flags/commandlineflag.he:f193i   :n3227e | :#  adbwarning: seltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f_
inno  ne193 n | A uB lSvlLi_ r_ItNNuTaoElnR NnvuAolLil_dI
 F      R_e| f                     ^aa
dl(sveo(iidf*_ saabtsils_fnioendn,u l.l. .d)s t_)_ VcAo_nAsRtG S=_ _0
;      
|               ^| 
                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const In file included from cs2/s2lax_polygon_shape.cch:a18r:
*In file included from  ../src/s2/s2lax_polygon_shape.ha:b36s:
lIn file included from _../src/s2/s2polygon.hn:u29l:
lIn file included from a/usr/local/clang/include/absl/container/flat_hash_map.hb:l45e:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.hn:a176m:e45#:# Iwarning: mpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
l(    176  |                                 \ 
       A| B                               ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N257T:E23R:N Anote: Lexpanded from macro 'absl_nullable'_
SI  N257G | L#Ed_eAfRiGn(e) )a;b
s      l| _                                            ^n
ul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:a120b:l9e:  _note: Nmacro 'ABSL_INTERNAL_X' defined hereu
lla  b120l | e#
d      e| f                      ^i
ne ABSL_INIn file included from Ts2/s2loop_measures.ccE:R18N:
AIn file included from L../src/s2/s2loop_measures.h_:X33(:
FIn file included from u../src/s2/s1angle.hn:c28,:
 In file included from C../src/s2/s2point.ha:l25l:
eIn file included from e../src/s2/util/coding/coder.h,: 36K:
QIn file included from u../src/s2/base/casts.ha:l36,:
 In file included from V../src/s2/base/logging.hQ:u21a:
lIn file included from ,/usr/local/clang/include/absl/log/check.h :K37V:
aIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hu:e21,:
 /usr/local/clang/include/absl/log/internal/check_op.hV:V505a:l1u:e ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ai/usr/local/clang/include/absl/log/internal/check_op.hl:,498 :.35.:. )note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'\

      |         ^  
498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32In file included from  | s2/s2loop_measures.cc#:d18e:
fIn file included from i../src/s2/s2loop_measures.hn:e33 :
AIn file included from B../src/s2/s1angle.hS:L28_:
IIn file included from N../src/s2/s2point.hT:E25R:
NIn file included from A../src/s2/util/coding/coder.hL:_36I:
FIn file included from _../src/s2/base/casts.hf:a36l:
sIn file included from e../src/s2/base/logging.h(:i21f:
_In file included from s/usr/local/clang/include/absl/log/check.ha:t37i:
sIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:e21d:
, /usr/local/clang/include/absl/log/internal/check_op.h.:.506.:)1 :_ _warning: Vtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
_ARGS  _506_ | 
A      B| S        ^L
_LOG_INTERIn file included from Ns2/s2lax_polygon_shape.ccA:L18_:
CIn file included from H../src/s2/s2lax_polygon_shape.hE:C36K:
_In file included from O../src/s2/s2polygon.hP:_29I:
MIn file included from P/usr/local/clang/include/absl/container/flat_hash_map.hL:(45C:
h/usr/local/clang/include/absl/container/internal/raw_hash_map.he:c178k:_3G:E ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]>
=)
        178|  | ^ 
 AB/usr/local/clang/include/absl/log/internal/check_op.hS:L488_:I32N:T Enote: Rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
AL_  X488( | i n sienrlti_noer _caosnssitgenx,p ri ncsoenrstt_ ocrh_aars*s iagbns_li_mnpull,l acbolnes tn&a,m ec#o#nIsmtp&l,(
        |    ^ 
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 135 : 16 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      135\ | 
        |                                 ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 :t23h:i snote: )expanded from macro 'absl_nullable')
)   A257B | S#Ld_eAfTiTnReI BaUbTsEl__LnIuFlElTaIbMlEe_ B_ONUuNlDl a{b l e 
        |                        ^ 
              In file included from  s2/s2loop_measures.cc : 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
\In file included from 
../src/s2/s1angle.h      :| 28               ^:

In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/common.h::2532:
:In file included from 9../src/s2/util/coding/coder.h:: 36note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
../src/s2/base/casts.h:36   :
32In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
I/usr/local/clang/include/absl/log/internal/check_op.hN:T506E:R1N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
F_/usr/local/clang/include/absl/log/internal/check_op.hf:a489l:s47e:( inote: fexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
sat  i489s | f i e d ,   .c.o.n)s t_ _TV1A&_ AvR1G,S _c_o
n      s| t        ^ 
T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSLIn file included from _s2/s2loop_measures.ccI:N18T:
EIn file included from R../src/s2/s2loop_measures.hN:A33L:
_In file included from X../src/s2/s1angle.h(:i28n:
sIn file included from e../src/s2/s2point.hr:t25_:
oIn file included from r../src/s2/util/coding/coder.h_:a36s:
sIn file included from i../src/s2/base/casts.hg:n36,:
 In file included from i../src/s2/base/logging.hn:s21e:
rIn file included from t/usr/local/clang/include/absl/log/check.h_:o37r:
_In file included from a/usr/local/clang/include/absl/log/internal/check_impl.h:s21s:
i/usr/local/clang/include/absl/log/internal/check_op.hg:n506_:i1m:p lwarning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
co/usr/local/clang/include/absl/log/internal/check_op.hn:s497t:&32,:  cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
st&,  
497       | |    ^ 
in/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:i133n:e52 :c onote: nexpanded from macro 'ABSL_INTERNAL_X's
tex  p133r |   c o n s t   c h a rA*B SaLb_sIlN_TnEuRlNlAaLb_lAeT TnRaImBeU#T#EI_mCpAlP(T U R E D _ B Y ( t h i s ) ) ,        \ 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d\e
f      i| n                                                   ^e
 a/usr/local/clang/include/absl/container/internal/common.hb:s32l:_9n:u lnote: lmacro 'ABSL_INTERNAL_IF_false' defined herea
ble    32_ | N#udlelfaibnlee 
A      B| S                      ^L
_INTERNAL_In file included from Is2/s2loop_measures.ccF:_18f:
aIn file included from l../src/s2/s2loop_measures.hs:e33(:
iIn file included from f../src/s2/s1angle.h_:s28a:
tIn file included from i../src/s2/s2point.hs:f25i:
eIn file included from d../src/s2/util/coding/coder.h,: 36.:
.In file included from .../src/s2/base/casts.h): 36_:
_In file included from V../src/s2/base/logging.hA:_21A:
RIn file included from G/usr/local/clang/include/absl/log/check.hS:_37_:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :        ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2lax_polygon_shape.cc/usr/local/clang/include/absl/log/internal/check_op.h::18498:
:In file included from 35../src/s2/s2lax_polygon_shape.h:: 36note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/s2polygon.h:29:
  In file included from 498/usr/local/clang/include/absl/container/flat_hash_map.h | : 45 :
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 180 :i3n:t  warning: vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]1
, i  n180t |   v 2A,B ScLo_nIsNtT EcRhNaArL*_ Xa(bisnls_enrotn_nourl_la sesxipgrnt,e xitn)s e{r t _ o r _ a s s i g n _ i m p l ,\ 
c      o| n                                  ^s
t&/usr/local/clang/include/absl/base/nullability.h,: 241c:o22n:s tnote: &expanded from macro 'absl_nonnull',

      |     ^241
 | #/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:e135f:i16n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n135o | n n u l l   _ N o n ntuhlils)
)      )|                       ^A
BSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_asIn file included from ss2/s2hausdorff_distance_query.cci:g16n:
,In file included from  ../src/s2/s2hausdorff_distance_query.hi:n25s:
eIn file included from r../src/s2/s2min_distance_targets.ht:_33o:
rIn file included from _../src/s2/s2cell_index.ha:s32s:
iIn file included from g../src/s2/s2cell_union.hn:_29i:
mIn file included from p/usr/local/clang/include/absl/flags/flag.hl:,42 :
cIn file included from o/usr/local/clang/include/absl/flags/internal/flag.hn:s30t:
&,/usr/local/clang/include/absl/base/call_once.h :c52o:n24s:t &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   52 |   s181t | d : : a t o m i c < u i n t 3 2 _ t >f*a lasbes,l _tnrounen,u l.lf iCrosntt,r ocloWnosrtd_(i
t      e| r                       ^a
tor /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#CdOeMfMiAn)e; 
a      b| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:n135u:l11l:  _note: Nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l135l | 
        |                       ^ 
      this))) ABSIn file included from Ls2/s2hausdorff_distance_query.cc_:A16T:
TIn file included from R../src/s2/s2hausdorff_distance_query.hI:B25U:
TIn file included from E../src/s2/s2min_distance_targets.h_:L33I:
FIn file included from E../src/s2/s2cell_index.hT:I32M:
EIn file included from _../src/s2/s2cell_union.hB:O29U:
NIn file included from D/usr/local/clang/include/absl/flags/flag.h :{42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 53 : 22 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       53  |          a b s  \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GIn file included from Ts2/s2latlng_rect_bounder.cc,: 18>:
)In file included from 
../src/s2/s2latlng_rect_bounder.h      :| 21^:

In file included from ../src/s2/s2latlng.h:/usr/local/clang/include/absl/log/internal/check_op.h32::
488In file included from :../src/s2/s1angle.h32::28 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'../src/s2/s2point.h
:27:
In file included from   ../src/s2/s2coder.h488: | 23 :
 In file included from i/usr/local/clang/include/absl/status/status.hn:l67i:
ne/usr/local/clang/include/absl/status/internal/status_internal.h :c119o:n14s:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
r c  o119n | s t  Scthaatru*s Raebps*l _anbuslll_anbolnen unlalm eC#l#oInmep(l
(       |  In file included from              ^ s2/s2lax_polygon_shape.cc
 : 18/usr/local/clang/include/absl/base/nullability.h :
 :In file included from  241../src/s2/s2lax_polygon_shape.h :: 2236 ::
  In file included from  note: ../src/s2/s2polygon.hexpanded from macro 'absl_nonnull' :
 29   :
 241 In file included from  |  /usr/local/clang/include/absl/container/flat_hash_map.h#\:d
45e      :
f| /usr/local/clang/include/absl/container/internal/raw_hash_map.h                               ^i:n
184e: 3/usr/local/clang/include/absl/base/nullability.ha::b 257warning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:l
_23n:o   nnote: 184nexpanded from macro 'absl_nullable' | u
 l   lA257 B | _#SNdLoe_nIfnNuTilEnlRe
N       aA| bL                     ^s_l
_Xn(uilnlsaebrlte_ o_rN_ualslsaibglne,
       i| n                      ^In file included from s
s2/s2latlng_rect_bounder.cce:r18t:
_In file included from o../src/s2/s2latlng_rect_bounder.hr:_21a:
sIn file included from s../src/s2/s2latlng.hiIn file included from :gs2/s2loop_measures.ccn32:_:
18iIn file included from :
m../src/s2/s1angle.hIn file included from p:../src/s2/s2loop_measures.hl28,::
 33In file included from c:
../src/s2/s2point.hoIn file included from :n../src/s2/s1angle.h27s::
t28In file included from &:
../src/s2/s2coder.h,In file included from : ../src/s2/s2point.h23c::
o25In file included from n:
/usr/local/clang/include/absl/status/status.hsIn file included from :t../src/s2/util/coding/coder.h67&::
,36/usr/local/clang/include/absl/status/internal/status_internal.h :
:tIn file included from 125r../src/s2/base/casts.h:u:14e36:,:
 
In file included from warning:       ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| :
  ^21
:
  In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h125/usr/local/clang/include/absl/log/check.h: | :133 37: :
52SIn file included from :t/usr/local/clang/include/absl/log/internal/check_impl.h a:note: texpanded from macro 'ABSL_INTERNAL_X'21u
s:
R/usr/local/clang/include/absl/log/internal/check_op.h  e:133p507 | * :  1a :b  s lwarning:  _ type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n o
 n /usr/local/clang/include/absl/log/internal/check_op.hnAu:BlS489lL: _C47IlN:oTn Eenote: Rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'ANn
AdLU_  nA489rTe | T fR (I 
 B U       Tc| oEn             ^_s
CtA /usr/local/clang/include/absl/base/nullability.hPT:T1241U&:R 22vE:1D _note: ,Bexpanded from macro 'absl_nonnull'Y 
(c  to241hn | i#ssdt)e) f,Ti n2 e &  a  bv s 2l _, n  co no nn u sl lt    _ cNh oa nr n *u l  l a
 b      s\| 
l                     ^      _
| n                                                   ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l31l: 9e:x pnote: rmacro 'ABSL_INTERNAL_IF_true' defined heret
ext   )31  | {# d e f i n\eIn file included from 
 s2/s2latlng_rect_bounder.ccA      :B| 18                                              ^S:
L
In file included from _../src/s2/s2latlng_rect_bounder.hI/usr/local/clang/include/absl/base/nullability.h:N:21T241:
E:In file included from R22../src/s2/s2latlng.hN::A 32Llnote: :
expanded from macro 'absl_nonnull'_:In file included from :
I../src/s2/s1angle.hFo_ntcre:  u_e28(241f:
lia | In file included from fg_#../src/s2/s2point.h*s d:aatbe27issf:
lf_iIn file included from nineo../src/s2/s2coder.hned:,n  23u.la:
b.lIn file included from  s./usr/local/clang/include/absl/status/status.h)f l:_lnio67afgn:
n_)/usr/local/clang/include/absl/status/internal/status_internal.h;usl:
al128       t:i_| N                     ^14so
n:nf u/usr/local/clang/include/absl/base/nullability.hiwarning: l:letype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
d

:            22  | | :128                     ^        ^  | 

note:  expanded from macro 'absl_nonnull' 
Sta  t241u | s#Rdeepf*i nIn file included from aebs2/s2lax_polygon_shape.cc s:la18b_:
snIn file included from oln../src/s2/s2lax_polygon_shape.h_n:un36ol:
lnIn file included from  n../src/s2/s2polygon.hCu:ll29oln:
 eIn file included from _A/usr/local/clang/include/absl/container/flat_hash_map.hNno:nd45nU:
un/usr/local/clang/include/absl/container/internal/raw_hash_map.hlrle:f
(184)       :c| o3n                     ^:s
 twarning: ;'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |              ^
/usr/local/clang/include/absl/base/nullability.h  :184241 | : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nXe( ianbsselr_In file included from tns2/s2loop_measures.cc_oo:nr18n_:
ualIn file included from sl../src/s2/s2loop_measures.hs i:_g33Nno:
,nIn file included from  n../src/s2/s1angle.hiu:nl28sl:
e
In file included from r      ../src/s2/s2point.ht| _:                     ^o25
r:
_In file included from a../src/s2/util/coding/coder.hs:s36i:
gIn file included from n../src/s2/base/casts.h_:i36m:
pIn file included from l../src/s2/base/logging.h,: 21c:
oIn file included from n/usr/local/clang/include/absl/log/check.hs:t37&:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht:&507,: 1t:r uwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],

      | /usr/local/clang/include/absl/log/internal/check_op.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
497:32:   185note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' In file included from 
 s2/s2hausdorff_distance_query.cc : 16   :
 497In file included from   | ../src/s2/s2hausdorff_distance_query.h  :  25 i:
n In file included from l ../src/s2/s2min_distance_targets.h i n:e 33  :
 cIn file included from  o../src/s2/s2cell_index.htn:sr32tu:
eeIn file included from x,../src/s2/s2cell_union.hp r: .29cf:
ioIn file included from nr/usr/local/clang/include/absl/flags/flag.hss:tt42 ,:
c hIn file included from ac/usr/local/clang/include/absl/flags/internal/flag.hro:n*30s :
ta/usr/local/clang/include/absl/base/call_once.h_b:sil96t_:ne33ru:lal tawarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]br
 lAeB   S 96Ln | _a I mNfeTrE#i#RIemNpnAdlL (_sC t Od M:M :A a )t; o 
m       i | c                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <
u i /usr/local/clang/include/absl/container/internal/raw_hash_map.hn : t 1333 :2 47_ :t\ >
note: *expanded from macro 'ABSL_INTERNAL_X'       
a| b                               ^s  l
133_ | n /usr/local/clang/include/absl/base/nullability.ho n: n 257u l: l23   :b a  snote: AeBexpanded from macro 'absl_nullable'_Si
Ln_  tIeN257rTnE | a#RldNe:fA:LiCn_eo AanbTtsTlr_RonIluBlWUolTarEdb_l(C
eA      P | T_                                ^UN
RuE/usr/local/clang/include/absl/base/nullability.hlD:_l241aBb:lY22e(:
t h      note: i| expanded from macro 'absl_nonnull'                      ^s
)
)  ,241  |  # d e f In file included from i ns2/s2loop_measures.cc e :  a18 b :
s lIn file included from  _ ../src/s2/s2loop_measures.hn :o 33n :
n In file included from u l../src/s2/s1angle.h l :  _28 N :
o nIn file included from \n
../src/s2/s2point.hu      l:| l                                              ^~~~25

:
      In file included from | ../src/s2/util/coding/coder.h                     ^:
36/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 184../src/s2/base/casts.h::336:In file included from :
 s2/s2hausdorff_distance_query.ccIn file included from warning: :../src/s2/base/logging.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]16:
:
21/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :
:../src/s2/s2hausdorff_distance_query.hIn file included from 135:/usr/local/clang/include/absl/log/check.h:25:16:
37:In file included from :
 ../src/s2/s2min_distance_targets.hIn file included from note: :expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/internal/check_impl.h33
::
21  In file included from :
135../src/s2/s2cell_index.h/usr/local/clang/include/absl/log/internal/check_op.h | : :32 507:
 :In file included from  1../src/s2/s2cell_union.h ::  29 warning: :
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from  
/usr/local/clang/include/absl/flags/flag.h :t/usr/local/clang/include/absl/log/internal/check_op.h42h::
i498In file included from s:/usr/local/clang/include/absl/flags/internal/flag.h)35:):30) :
 note: /usr/local/clang/include/absl/base/call_once.hAexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':B
97S:L18_  :A498 T | warning:  Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R 
I B   U 97T  | E  _ L iI Fn Et  ToIvnMc1Ee,__ BifOlnUta NgDv* 2 {,a b  cs lo n_ ns o tn  n uc hla l r  f* l  a ga ) ;b 
 s      l _|                   ^ n
 o n/usr/local/clang/include/absl/base/nullability.h n: u241l :l 22  :\e x
note: p      rexpanded from macro 'absl_nonnull'| t
               ^e  
x241/usr/local/clang/include/absl/container/internal/common.ht | :#)31d :e{9f :i  n e note:  macro 'ABSL_INTERNAL_IF_true' defined here a
 b    s 31 l  |  _# n doe nf n iu nle\l  
A_BN      SoL| n                                  ^_n
IuN/usr/local/clang/include/absl/base/nullability.hlTl:E
R241      N:| A                     ^22L
:_ Inote: Fexpanded from macro 'absl_nonnull'_
tr  u241e | (#idfe_fsiantei safbiseld_,n o.n.n.u)l li f__Nsoantniuslfli
e      d| 
                     ^      
|         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_In file included from Is2/s2hausdorff_distance_query.ccN:T16E:
RIn file included from N../src/s2/s2hausdorff_distance_query.hA:L25_:
XIn file included from (../src/s2/s2min_distance_targets.hi:n33s:
eIn file included from r../src/s2/s2cell_index.ht:_32o:
rIn file included from _../src/s2/s2cell_union.ha:s29s:
iIn file included from g/usr/local/clang/include/absl/flags/flag.hn:,42 :
iIn file included from n/usr/local/clang/include/absl/flags/internal/flag.hs:e30r:
t/usr/local/clang/include/absl/base/call_once.h_:o111r:_40a:s swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
n_im  p111l | ,v ociodn sLto&w,L ecvoenlsCta&l,l Otnrcuee(,a
b      s| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
:on  c185e | _ f l a g *   a b s l _ n o n n u l lt rfulea,g ,. fCiarlslta,b lceo&n&s tf_ni,t
e      r| a                                       ^t
or/usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dCeOfMiMnAe) ;a
b      s| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
non/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:u135l:l11 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l135
 |        |                       ^ 
       this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #defIn file included from is2/s2loop_measures.ccn:e18 :
AIn file included from B../src/s2/s2loop_measures.hS:L33_:
IIn file included from N../src/s2/s1angle.hT:E28R:
NIn file included from A../src/s2/s2point.hL:_25I:
FIn file included from _../src/s2/util/coding/coder.hf:a36l:
sIn file included from e../src/s2/base/casts.h(:i36f:
_In file included from s../src/s2/base/logging.ha:t21i:
sIn file included from f/usr/local/clang/include/absl/log/check.hi:e37d:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h.:.21.:
) /usr/local/clang/include/absl/log/internal/check_op.h_:_511V:A13_:A Rwarning: Gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S
__
      |         ^
  511 | const chIn file included from as2/s2lax_polygon_shape.ccr:*18 :
aIn file included from b../src/s2/s2lax_polygon_shape.hs:l36_:
nIn file included from u../src/s2/s2polygon.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.he: 45C:
h/usr/local/clang/include/absl/container/internal/raw_hash_map.he:c189k:s3t:r cwarning: mpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
tru  e189I | m p lA(B
S      L| _            ^I
NTERN/usr/local/clang/include/absl/base/nullability.hA:L257_:X23(:i nnote: sexpanded from macro 'absl_nullable'e
rt  _257o | r#_daesfsiingen ,a bisnls_enrutl_loarb_laes s_iNgunl_liambplle,
       c| o                      ^n
st&, &&, In file included from fs2/s2loop_measures.cca:l18s:
eIn file included from ,../src/s2/s2loop_measures.h
:      33| :
  ^In file included from 
../src/s2/s1angle.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h28::
135In file included from :../src/s2/s2point.h16::25 :
In file included from note: ../src/s2/util/coding/coder.hexpanded from macro 'ABSL_INTERNAL_X':
36:
In file included from ../src/s2/base/casts.h  :13536 | :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from In file included from  /usr/local/clang/include/absl/log/check.hs2/s2hausdorff_distance_query.cc :: 3716 :
:
tIn file included from In file included from h/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2hausdorff_distance_query.hi::s2125):
:
/usr/local/clang/include/absl/log/internal/check_op.h)In file included from ):../src/s2/s2min_distance_targets.h 512:A:33B17:
S:In file included from L ../src/s2/s2cell_index.h_warning: :Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]32T
:
TIn file included from R../src/s2/s2cell_union.h  I:512B29 | U :
T In file included from E /usr/local/clang/include/absl/flags/flag.h_ :Lc42Io:
nFIn file included from sE/usr/local/clang/include/absl/flags/internal/flag.htT: I30Mc:
Eh/usr/local/clang/include/absl/base/call_once.ha_r:*B153O :aU41bNs:Dl  warning: _{type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n u
 l l   a 153b  |   l e    s   1C, a  l lc O onn sc te  Ic mh pa l r( s* t  ad :b : sal t\_on
mu      il| cl               ^a<
ubi/usr/local/clang/include/absl/container/internal/common.hnl:te31 3s:229_,:t
 >      note: *macro 'ABSL_INTERNAL_IF_true' defined here|  
a                ^b   s
31l | _#/usr/local/clang/include/absl/base/nullability.hnd:oen257fn:iun23lel:  A cBonote: Snexpanded from macro 'absl_nullable'Lt
_rIo  Nl257T,E | 
R#      Nd| eAf                                        ^Li
_nIe/usr/local/clang/include/absl/base/nullability.hF :_a241tb:sr22ul:e_ n(unote: ilexpanded from macro 'absl_nonnull'fl
_as  ba241tl | i#es dfe_ifeNiudnl,e l .aa.bb.sl)l e_
inf      o_n| s                      ^nau
tlils f_iNeodn
n      u| In file included from l        ^s2/s2loop_measures.ccl
:
18      :
| In file included from                      ^../src/s2/s2loop_measures.h
:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2lax_polygon_shape.cc25::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2lax_polygon_shape.h36::
36In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2polygon.h36::
29In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h21::
45In file included from :
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::37189:
:In file included from 3/usr/local/clang/include/absl/log/internal/check_impl.h:: 21warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/log/internal/check_op.h
:512:47:   warning: 189type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
  A  B512S | L _ I N TcEoRnNsAtL _cXh(airn*s earbts_lo_rn_ualslsaibglne,  si1n,s ecrotn_sotr _cahsasri*g na_bismlp_ln,u lcloanbslte& ,s 2&,&
,       | f                                              ^a
ls/usr/local/clang/include/absl/base/nullability.he:,257
:      23| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
note: expanded from macro 'absl_nullable'
  190 |    257  |  # d e f i n e   a b s l _ n u ltlraubel,e  ._fNiurlslta,b lceo
n      s| t                      ^_
iteratorIn file included from  s2/s2loop_measures.ccA:B18S:
LIn file included from _../src/s2/s2loop_measures.hI:N33T:
EIn file included from R../src/s2/s1angle.hN:A28L:
_In file included from C../src/s2/s2point.hO:M25M:
AIn file included from )../src/s2/util/coding/coder.h;:
36      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/base/casts.h
:36:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/base/logging.h::13521::
11In file included from :/usr/local/clang/include/absl/log/check.h :note: 37expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
135/usr/local/clang/include/absl/log/internal/check_op.h | : 513 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    t513h | i s ) ) )c oAnBsStL _cAhTaTrR*I BaUbTsEl__LnIoFnEnTuIlMlE _eBxOpUrNtDe x{t ) ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l          ^~~~_
nIn file included from os2/s2hausdorff_distance_query.ccn:n16u:
lIn file included from l../src/s2/s2hausdorff_distance_query.h :_25N:
oIn file included from n../src/s2/s2min_distance_targets.hn:u33l:
lIn file included from 
../src/s2/s2cell_index.h      :| 32                     ^:

In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2loop_measures.cc:18  :
194In file included from  | ../src/s2/s2loop_measures.hi:n33l:
iIn file included from n../src/s2/s1angle.he: 28s:
tIn file included from d../src/s2/s2point.h:::25a:
tIn file included from o../src/s2/util/coding/coder.hm:i36c:
<In file included from u../src/s2/base/casts.hi:n36t:
3In file included from 2../src/s2/base/logging.h_:t21>:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l514l: 13C:o nwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
olW  o514r | dc(o
n      s| t                              ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef iCnhee cakbsstlr_cnmopnfnaullsle I_mNpoln(n
u      l| l            ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hexpanded from macro 'absl_nullable':In file included from 
191s2/s2hausdorff_distance_query.cc::  316257::
 |  In file included from warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2hausdorff_distance_query.hd
:e25f:
i  In file included from n191../src/s2/s2min_distance_targets.he | :  33a :
bAIn file included from sB../src/s2/s2cell_index.hlS:L_32_n:
IuIn file included from Nl../src/s2/s2cell_union.hTl:aE29bR:
lNIn file included from eA/usr/local/clang/include/absl/flags/flag.h L:__42NXu:
(lIn file included from il/usr/local/clang/include/absl/flags/internal/flag.hna:sb30el:
re/usr/local/clang/include/absl/base/call_once.ht
:_      195o| :r                      ^16_
:a swarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
gIn file included from ns2/s2loop_measures.cc  ,:195 18 | i:
 n In file included from s ../src/s2/s2loop_measures.he :rot33n_c:
eo_In file included from rf_../src/s2/s1angle.hla:asg28s*i:
 gIn file included from an../src/s2/s2point.hb_:25:
In file included from i../src/s2/util/coding/coder.hm:p36l:
,In file included from  ../src/s2/base/casts.hc:o36n:
sIn file included from t../src/s2/base/logging.h&:,21 :
&In file included from &/usr/local/clang/include/absl/log/check.h,: 37t:
rIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.he:,21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :  ^515
:17:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :warning: 133type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
52:   note: 515expanded from macro 'ABSL_INTERNAL_X' | 
      133c | o n s t   c h a r *  AaBbSsLl__InNuTlElRaNbAlLe_ AsT1T,R IcBoUnTsEt_ CcAhPaTrU*R EaDb_sBlY_(ntuhlilsa)b)l,e   s 2 , 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d\e
f      i| n                                                   ^e
 absl_/usr/local/clang/include/absl/container/internal/common.hn:u31l:l9a:b lnote: emacro 'ABSL_INTERNAL_IF_true' defined here 
_Nu   l31l | a#bdleef
i      n| e                      ^ 
ABSL_INTEIn file included from Rs2/s2loop_measures.ccN:A18L:
_In file included from I../src/s2/s2loop_measures.hF:_33t:
rIn file included from u../src/s2/s1angle.he:(28i:
fIn file included from _../src/s2/s2point.hs:a25t:
iIn file included from s../src/s2/util/coding/coder.hf:i36e:
dIn file included from ,../src/s2/base/casts.h :.36.:
.In file included from )../src/s2/base/logging.h :i21f:
_In file included from s/usr/local/clang/include/absl/log/check.ha:t37i:
sIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:e21d:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 515        ^:
47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     consIn file included from ts2/s2lax_polygon_shape.cc :c18h:
aIn file included from r../src/s2/s2lax_polygon_shape.h*: 36a:
bIn file included from s../src/s2/s2polygon.hl:_29n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:a45b:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 191s:13,:  cwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
st ch  a191r | *   aAbBsSlL__nIuNlTlEaRbNlAeL _sX2(,i
n      s| e                                              ^r
t_/usr/local/clang/include/absl/base/nullability.ho:r257_:a23s:s inote: gexpanded from macro 'absl_nullable'n
,   i257n | s#edretf_ionre_ aasbssilg_nn_uilmlpalb,l ec o_nNsutl&l,a b&l&e,
       t| r                      ^u
e,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from s2/s2loop_measures.cc:  18192:
 | In file included from  In file included from ../src/s2/s2loop_measures.h s2/s2latlng_rect_bounder.cc: :33 18:
 :
In file included from  In file included from  ../src/s2/s1angle.h../src/s2/s2latlng_rect_bounder.h : : 2821 :
:
 In file included from In file included from  ../src/s2/s2point.h../src/s2/s2latlng.h :: 2532 :
:
 In file included from In file included from  ../src/s2/util/coding/coder.h../src/s2/s1angle.hf::a3628l:
:
sIn file included from In file included from e../src/s2/base/casts.h../src/s2/s2point.h,:: 3627.:
:
fIn file included from In file included from i../src/s2/base/logging.h../src/s2/s2coder.hr::s2123t:
:
,In file included from In file included from  /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/status.hc::o3767n:
:
sIn file included from /usr/local/clang/include/absl/status/internal/status_internal.ht/usr/local/clang/include/absl/log/internal/check_impl.h:_:149i21:t:
13e/usr/local/clang/include/absl/log/internal/check_op.hr::a 516twarning: :otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]17r
:  A  warning: B149Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | Lc
_oIn  Ns516Tt | E  Rc NhA aL r_*cC oOaMnbsMstAl) _;nc
ho      anr| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*u
 lal/usr/local/clang/include/absl/container/internal/raw_hash_map.hb :Ms133la:k_47en:Co hnnote: enexpanded from macro 'ABSL_INTERNAL_X'cu
klFla   ie133lx | S pt rr ti en xg t( )
 ;       
|                    ^A| 
B                ^S
/usr/local/clang/include/absl/base/nullability.hL:/usr/local/clang/include/absl/base/nullability.h_241I::N24122T::E22 R:note: Nexpanded from macro 'absl_nonnull' A
Lnote:   _expanded from macro 'absl_nonnull'241A
 | T#  Td241Re | IfB#iUndTeeE f_ianCbAesP lTa_UbRnsEolD_n_nnBouYln(lnt uh_lilNs o)_nN)n,ou nl nl u
 l       l|                       ^
 
       |                       ^ 
     In file included from  s2/s2latlng_rect_bounder.cc : 18 :
 In file included from  ../src/s2/s2latlng_rect_bounder.h : 21 In file included from :
 s2/s2loop_measures.ccIn file included from  :../src/s2/s2latlng.h\18:
:
32      In file included from :
| ../src/s2/s2loop_measures.hIn file included from                                               ^~~~:../src/s2/s1angle.h
33::
28In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2point.h28/usr/local/clang/include/absl/container/internal/raw_hash_map.h::
:27In file included from 191:
../src/s2/s2point.h:In file included from :3../src/s2/s2coder.h25:::
 23In file included from warning: :
../src/s2/util/coding/coder.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from :
/usr/local/clang/include/absl/status/status.h36/usr/local/clang/include/absl/container/internal/raw_hash_map.h::
:67In file included from 135:
../src/s2/base/casts.h:/usr/local/clang/include/absl/status/internal/status_internal.h:16:36:150:
 :In file included from note: 25expanded from macro 'ABSL_INTERNAL_X'../src/s2/base/logging.h:
: 21warning: :
  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 135
/usr/local/clang/include/absl/log/check.h | : 37   :
150 In file included from  |   /usr/local/clang/include/absl/log/internal/check_impl.h   :  21  c:
 o/usr/local/clang/include/absl/log/internal/check_op.h n:tsh517ti :sa)13b):s)l  :warning: A:Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]SStL
a_tAu  TsT517*R  | IacBbUosnTlEs__tnLo InFcnhEauTrlIl*M E s_taBabOstUulNsD_,  n{c ou n ls tl   ac hb a lr *e    a b Cs hl _e n co nk n su lt lr   cp ra e sf ie x\c)
m;p      
t|       r               ^| u
                        ^e/usr/local/clang/include/absl/container/internal/common.h
I:m/usr/local/clang/include/absl/base/nullability.h32p::l2419(::
22       :note: |  macro 'ABSL_INTERNAL_IF_false' defined here            ^note: 
expanded from macro 'absl_nonnull'

   /usr/local/clang/include/absl/base/nullability.h32  : | 241#257 | d#:ed23fei:fni ennote:  expanded from macro 'absl_nullable'eA 
BaS  bLs257_lI | _Nn#TodEnRenNufAlLil_ nI_FeN_o fnaanlubslesl(
li      f_| _n                     ^su
laltaibslfei e_dN,u lIn file included from .ls2/s2latlng_rect_bounder.cc.a:.b18)l:
e In file included from 
_../src/s2/s2latlng_rect_bounder.h_      :V| 21A                      ^:
_
In file included from A../src/s2/s2latlng.hR:G32S:
_In file included from In file included from _s2/s2loop_measures.cc../src/s2/s1angle.h
::      1828| :
        ^:
In file included from 
In file included from ../src/s2/s2loop_measures.h../src/s2/s2point.h::3327:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2coder.h::2823:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2567:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/util/coding/coder.h::15036::
58In file included from :../src/s2/base/casts.h :warning: 36type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21:
  In file included from 150/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 518a:b17s:l :warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S
tat  u518s | *   a b sclo_nnsotn ncuhlalr *s taabtsuls_,n uclolnasbtl ec hsa1r,*  caobnsslt_ ncohnanru*l la bpsrle_fniuxl)l;a
b      l| e                                                         ^ 
s2/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22                ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel In file included from 
_s2/s2lax_polygon_shape.cc      N:| u18                     ^l:

lIn file included from a../src/s2/s2lax_polygon_shape.hb:l36e:

In file included from       ../src/s2/s2polygon.h| :                      ^29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :s2/s2loop_measures.cc193::183:
:In file included from  ../src/s2/s2loop_measures.h:warning: 33passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s1angle.h:28  :
193In file included from  | ../src/s2/s2point.h : 25A:
BIn file included from S../src/s2/util/coding/coder.hL:_36I:
NIn file included from T../src/s2/base/casts.hE:R36N:
AIn file included from L../src/s2/base/logging.h_:X21(:
iIn file included from n/usr/local/clang/include/absl/log/check.hs:e37r:
tIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.ho:r21_:
a/usr/local/clang/include/absl/log/internal/check_op.hs:s518i:g47n:,  warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ser  t518_ | o r _ a scsoingsnt_ icmhpalr,*  caobnsslt_&n,u l&l&a,b lter use1,,
       c| o  ^n
st/usr/local/clang/include/absl/container/internal/raw_hash_map.h :c133h:a52r:*  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n133u | l l a b l e   s 2 , 
A      B| S                                              ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T257E:R23N:A Lnote: _expanded from macro 'absl_nullable'A
TT  R257I | B#UdTeEf_iCnAeP TaUbRsElD__nBuYl(ltahbilse) )_,N u l l a b l e 
        |                        ^ 
     In file included from  s2/s2loop_measures.cc : 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
\In file included from 
../src/s2/s1angle.h      :| 28                                                   ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/container/internal/common.h25::
31In file included from :../src/s2/util/coding/coder.h9::36 :
In file included from note: ../src/s2/base/casts.hmacro 'ABSL_INTERNAL_IF_true' defined here:
36:
In file included from ../src/s2/base/logging.h   :3121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :A21B:
S/usr/local/clang/include/absl/log/internal/check_op.hL:_519I:N17T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_  I519F | _ t r u ec(oinfs_ts acthiasrf*i eadb,s l._.n.o)n niufl_ls aetxipsrftieesxdt
)l      _;| 
n        ^      o
n| n                ^u
ll/usr/local/clang/include/absl/base/nullability.h :f241l:a22g:)  In file included from note: {s2/s2lax_polygon_shape.cc
expanded from macro 'absl_nonnull':      
18| :
               ^  In file included from 
241../src/s2/s2lax_polygon_shape.h | :#36/usr/local/clang/include/absl/base/nullability.hd:
:eIn file included from 241f../src/s2/s2polygon.h:i:22n29:e:
  In file included from note: aexpanded from macro 'absl_nonnull'b/usr/local/clang/include/absl/container/flat_hash_map.h
s:l45_  n:
241o/usr/local/clang/include/absl/container/internal/raw_hash_map.hn | :#n193du:el3fl: i n_warning: eN'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] oan
bnsull_  ln193o
 | n       n u| AlB                     ^lS 
L__NIoNnTnEuRlNlA
L      _| X                     ^(
iIn file included from ns2/s2loop_measures.ccs:e18r:
tIn file included from _../src/s2/s2loop_measures.ho:r33_:
aIn file included from s../src/s2/s1angle.hs:i28g:
nIn file included from ,../src/s2/s2point.h :i25n:
sIn file included from e../src/s2/util/coding/coder.hr:t36_:
oIn file included from r../src/s2/base/casts.h_:a36s:
sIn file included from i../src/s2/base/logging.hg:n21_:
iIn file included from m/usr/local/clang/include/absl/log/check.hp:l37,:
 In file included from c/usr/local/clang/include/absl/log/internal/check_impl.ho:n21s:
t/usr/local/clang/include/absl/log/internal/check_op.h&:,520 :&13&:,  warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
uIn file included from e  s2/s2hausdorff_distance_query.cc,520:
 | 16c      :
o| In file included from n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2hausdorff_distance_query.hs
:t25   c:
194hIn file included from  | a../src/s2/s2min_distance_targets.hr :* 33  :
 aIn file included from  b../src/s2/s2cell_index.h s: l32 _:
 nIn file included from  u../src/s2/s2cell_union.h l:l 29 a:
 bIn file included from l /usr/local/clang/include/absl/flags/flag.h e:  42 truC:
heIn file included from e,/usr/local/clang/include/absl/flags/internal/flag.h c:k.30sf:
tir/usr/local/clang/include/absl/base/call_once.hrc:sa200ts:,e40 c:mc pwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oa
nlsste  _I200im | tvpeorliad(t 
oL      ro | w            ^ALB
eSv/usr/local/clang/include/absl/base/nullability.hLe_:lI257CNa:TlE23lRO:Nn AcLnote: eexpanded from macro 'absl_nullable'_(C
aOb  MsMl257A:): | ;#o
nd      ce| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f_i
nfel/usr/local/clang/include/absl/container/internal/raw_hash_map.h aa:gb133*s: l47a_:bnsu llnote: _expanded from macro 'ABSL_INTERNAL_X'lna
boln  neu133 l_ | l N u lfl la ab gl , e  C
 a       lA| l                      ^BaS
bLl_eI&N&In file included from T Es2/s2loop_measures.ccfR:nN,18A
L:
      _In file included from | A                                       ^../src/s2/s2loop_measures.hT
T:R33/usr/local/clang/include/absl/base/nullability.hI:
:BIn file included from 241U../src/s2/s1angle.h:T:22E28:_:
 CIn file included from note: Aexpanded from macro 'absl_nonnull'P../src/s2/s2point.h
T:  U25241R:
 | E#In file included from Dd_../src/s2/util/coding/coder.heBf:Yi36(n:
tehIn file included from  ia../src/s2/base/casts.hsb:)s36)l:
,_In file included from  n../src/s2/base/logging.h o: n 21n u:
 l In file included from l /usr/local/clang/include/absl/log/check.h  _: N 37o n:
 n In file included from u l/usr/local/clang/include/absl/log/internal/check_impl.h l :
 21       :
|  /usr/local/clang/include/absl/log/internal/check_op.h                     ^ :
 521 : 17 :  \warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                               ^~~~
  521 |     co/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:s193t: 3c:h awarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]*
 /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b135s:l16_:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
abl  e135  | s 1 ,   c o n s t   cthhairs*) )a)b sAlB_SnLu_lAlTaTbRlIeB UsT2E,_
L      I| F                ^E
TI/usr/local/clang/include/absl/base/nullability.hM:E257_:B23O:U Nnote: Dexpanded from macro 'absl_nullable' 
{    257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l\a
b      l| e               ^

      | /usr/local/clang/include/absl/container/internal/common.h                      ^:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
In file included from s2/s2loop_measures.cc   :3118 | :
#In file included from d../src/s2/s2loop_measures.he:f33i:
nIn file included from e../src/s2/s1angle.h :A28B:
SIn file included from L../src/s2/s2point.h_:I25N:
TIn file included from E../src/s2/util/coding/coder.hR:N36A:
LIn file included from _../src/s2/base/casts.hI:F36_:
tIn file included from r../src/s2/base/logging.hu:e21(:
iIn file included from f/usr/local/clang/include/absl/log/check.h_:s37a:
tIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hs:f21i:
e/usr/local/clang/include/absl/log/internal/check_op.hd:,521 :.47.:. )warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
f_s  a521t | i s f i ecdo
n      s| t        ^ 
char* absl_nullIn file included from as2/s2lax_polygon_shape.ccb:l18e:
 In file included from s../src/s2/s2lax_polygon_shape.h1:,36 :
cIn file included from o../src/s2/s2polygon.hn:s29t:
 In file included from c/usr/local/clang/include/absl/container/flat_hash_map.hh:a45r:
*/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a193b:s3l:_ nwarning: uIn file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ls2/s2latlng_rect_bounder.cc
l:a18b:
  lIn file included from 193e../src/s2/s2latlng_rect_bounder.h |  : s21 2:
,AIn file included from 
B../src/s2/s2latlng.h      S:L| 32                                              ^_:
I
In file included from N../src/s2/s1angle.hT/usr/local/clang/include/absl/base/nullability.h:E:28R257:
N:In file included from A23../src/s2/s2point.hL::_ 27X:
(note: In file included from iexpanded from macro 'absl_nullable'../src/s2/s2coder.hn
:s23e  :
r257/usr/local/clang/include/absl/status/status.ht | :_#725od:re38_f:ai snwarning: setype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i 
ganb,s  l 725i_ | nn us lesrlttaab_tloierc_  a_sstNsaiutgulns__liimanbptlle,er 
nc      ao| ln:                      ^s:
tS&t,a t&u&s,In file included from R s2/s2loop_measures.ccet:pr18*u:
 eIn file included from a,../src/s2/s2loop_measures.hb
:s      l33| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
n
oIn file included from n  n../src/s2/s1angle.h194u: | l28 l:
   In file included from P ../src/s2/s2point.hr :e 25p :
a In file included from r e../src/s2/util/coding/coder.h T: o36 M:
 oIn file included from  d ../src/s2/base/casts.hi f: y36 (:
t
In file included from r      ../src/s2/base/logging.hu| :e                                     ^21,
:
 In file included from /usr/local/clang/include/absl/base/nullability.h./usr/local/clang/include/absl/log/check.h:f:241i37:r:
22sIn file included from :t/usr/local/clang/include/absl/log/internal/check_impl.h ,:note:  21expanded from macro 'absl_nonnull'c:

o/usr/local/clang/include/absl/log/internal/check_op.hn  :s241t522 | _#:idt17eef:ri antewarning: o type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ra 
bAsB  lS_522Ln | _o InN n TuE lRlcN oA_nLNs_otCn OnMcuhMlAal)
r;      *
|        a                     ^| b
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
l_n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n135n:u11l:l  note: eexpanded from macro 'ABSL_INTERNAL_X'x
prt  e135x | t ) ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h :t241In file included from h:s2/s2latlng_rect_bounder.cci22:s:18) :
)note: In file included from )expanded from macro 'absl_nonnull'../src/s2/s2latlng_rect_bounder.h 
:A21  B:
S241In file included from L | ../src/s2/s2latlng.h_#:dA32eT:
TfIn file included from iR../src/s2/s1angle.hnI:Be28U :
TaIn file included from bE../src/s2/s2point.hs_:Ll27I_:
nFIn file included from Eo../src/s2/s2coder.hTn:In23Mu:
lEl/usr/local/clang/include/absl/status/status.h_ :B_732NO:Uo29Nn:nDu lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 
{       |                         ^732 
 |      s t a t i c   c o n s t   s t d : : s t r i n g *\ 
a      b| s          ^~~~l
_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2latlng_rect_bounder.cc196: | 18 :
 In file included from A../src/s2/s2latlng_rect_bounder.hB:S21L:
_In file included from I../src/s2/s2latlng.hN:T32E:
RIn file included from N../src/s2/s1angle.hA:L28_:
XIn file included from (../src/s2/s2point.hi:n27s:
eIn file included from r../src/s2/s2coder.ht:_23o:
r/usr/local/clang/include/absl/status/status.h_:a751s:s61i:g nwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
inse  r751t | _ o rs_taastsiicg nu_iinmtpplt,r _&t& ,P ocionntsetr&T,o Rfeapl(sset,a
t      u| s  ^_
in/usr/local/clang/include/absl/container/internal/raw_hash_map.ht:e133r:n52a:l :note: :expanded from macro 'ABSL_INTERNAL_X'S
tat  u133s | R e p *   a b s l _ nAoBnSnLu_lIlN TrE)R;N
A      L| _                                                            ^A
TT/usr/local/clang/include/absl/base/nullability.hR:I241B:U22T:E _note: Cexpanded from macro 'absl_nonnull'A
PT  U241R | E#Dd_eBfYi(nteh iasb)s)l,_ n o n n u l l   _ N o n n u l l 
        |                       ^ 
     \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   In file included from 32s2/s2latlng_rect_bounder.cc | :#18d:
eIn file included from f../src/s2/s2latlng_rect_bounder.hi:n21e:
 In file included from A../src/s2/s2latlng.hB:S32L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
IIn file included from F../src/s2/s2coder.h_:f23a:
l/usr/local/clang/include/absl/status/status.hs:e752(:i44f:_ swarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
isfi  e752d | ,   .s.t.a)t i_c_ VcAo_nAsRtG Ss_t_a
t      u| s        ^_
internal::In file included from Ss2/s2lax_polygon_shape.cct:a18t:
uIn file included from s../src/s2/s2lax_polygon_shape.hR:e36p:
*In file included from  ../src/s2/s2polygon.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hn:o45n:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l196l: 3R:e pwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
Poi  n196t | e r (A
B      S| L                                           ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Xexpanded from macro 'absl_nonnull'(
in  s241e | r#td_eofri_naes saibgsnl,_ nionnsneurltl_ o_rN_oansnsuilgln
_      i| m                     ^p
l, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2latlng_rect_bounder.cc:18:
In file included from ../src/s2/s2latlng_rect_bounder.h:21:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_IIn file included from Ns2/s2latlng_rect_bounder.ccT:E18R:
NIn file included from A../src/s2/s2latlng_rect_bounder.hL:_21A:
TIn file included from T../src/s2/s2latlng.hR:I32B:
UIn file included from T../src/s2/s1angle.hE:_28C:
AIn file included from P../src/s2/s2point.hT:U27R:
EIn file included from D../src/s2/s2coder.h_:B23Y:
(/usr/local/clang/include/absl/status/status.ht:h1038i:s33):, 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                         ^~~~

 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_In file included from as2/s2latlng_rect_bounder.ccr:g18<:
KIn file included from >../src/s2/s2latlng_rect_bounder.h&: 21k:
 In file included from A../src/s2/s2latlng.hB:S32L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
AIn file included from T../src/s2/s2coder.hT:R23I:
B/usr/local/clang/include/absl/status/status.hU:T1063E:_13C:A Pwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
RED _1063B | Yc(otnhsits )c,h
a      r| *                                                              ^~~~ 
absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, iIn file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:25:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:16:
In file included from ../src/s2/s2hausdorff_distance_query.h:25:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nt base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from In file included from s2/s2lax_polygon_shape.cc../src/s2/mutable_s2shape_index.h::1830:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/container/btree_map.h::3666:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/container/internal/btree.h::3470:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/internal/layout.h::30198:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/str_cat.h::66116:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::7023:
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/strings/numbers.h198::
66In file included from :/usr/local/clang/include/absl/strings/str_cat.h41::116 :
In file included from warning: /usr/local/clang/include/absl/strings/internal/stringify_sink.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
/usr/local/clang/include/absl/strings/numbers.h:200:7   :66  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      200  |  c h a r *   a b s l _ n o n n u l l   F a s tiInntt_TtoyBpuef*f earb(sul_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
iIn file included from ns2/s2loop.cct:3182:
_In file included from t../src/s2/s2loop.h :n34,:
 In file included from c../src/s2/mutable_s2shape_index.hh:a30r:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198 :
oIn file included from u/usr/local/clang/include/absl/strings/str_cat.ht:_116s:
tIn file included from r/usr/local/clang/include/absl/strings/internal/stringify_sink.h):
23      :
| /usr/local/clang/include/absl/strings/numbers.h      ^:
158:57: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 158expanded from macro 'absl_nonnull' | 
boo  l241  | s#adfeef_isnter taob1s6l__bnaosnen(ualbls l_:N:osntnruilnlg
_      v| i                     ^e
w text, int16_t* abIn file included from ss2/s2lax_polygon_shape.ccl:_18n:
oIn file included from n../src/s2/s2lax_polygon_shape.hn:u36l:
lIn file included from  ../src/s2/s2polygon.hv:a34l:
uIn file included from e../src/s2/mutable_s2shape_index.h,:
30      :
| In file included from                                                         ^/usr/local/clang/include/absl/container/btree_map.h
:66/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/btree.h::2270::
 In file included from note: /usr/local/clang/include/absl/container/internal/layout.hexpanded from macro 'absl_nonnull':
198:
  In file included from 241/usr/local/clang/include/absl/strings/str_cat.h | :#116d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/stringify_sink.hi:n23e:
 /usr/local/clang/include/absl/strings/numbers.ha:b200s:l54_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   _200N | ocnhnaurl*l 
a      b| s                     ^l
_nonnull FastIntToBufIn file included from fs2/s2loop.cce:r18(:
uIn file included from i../src/s2/s2loop.hn:t343:
2In file included from _../src/s2/mutable_s2shape_index.ht: 30n:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hc:h66a:
rIn file included from */usr/local/clang/include/absl/container/internal/btree.h :a70b:
sIn file included from l/usr/local/clang/include/absl/container/internal/layout.h_:n198o:
nIn file included from n/usr/local/clang/include/absl/strings/str_cat.hu:l116l:
 In file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:t23_:
s/usr/local/clang/include/absl/strings/numbers.ht:r160):
57      :|                                                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:   160note:  | expanded from macro 'absl_nonnull'b
oo  l241  | s#adfeef_isnter taob3s2l__bnaosnen(ualbls l_:N:osntnruilnlg
_      v| i                     ^e
w text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2lax_polygon_shape.cce: 18a:
bIn file included from s../src/s2/s2lax_polygon_shape.hl:_36n:
oIn file included from n../src/s2/s2polygon.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.h_:N30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                     ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
In file included from   s2/s2loop.cc201: | 18 :
 In file included from  ../src/s2/s2loop.h :A34B:
SIn file included from L../src/s2/mutable_s2shape_index.h_:I30N:
TIn file included from E/usr/local/clang/include/absl/container/btree_map.hR:N66A:
LIn file included from _/usr/local/clang/include/absl/container/internal/btree.hN:E70E:
DIn file included from _/usr/local/clang/include/absl/container/internal/layout.hM:I198N:
_In file included from S/usr/local/clang/include/absl/strings/str_cat.hI:Z116E:
(In file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:t23_:
s/usr/local/clang/include/absl/strings/numbers.ht:r162,: 57k:F awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ToBu  162 | bfofoelr Ssiazfee)_;s
t      r| t    ^o
64/usr/local/clang/include/absl/base/macros.h_:b251a:s18e:( anote: bexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE's
l::  s251t | r i n_g__avtiterwi btuetxet_,_ (i(ndti6a4g_nto*s ea_bisfl(__n_obnuniulltli nv_aolbujee,c
t      _| s                                                        ^i
ze/usr/local/clang/include/absl/base/nullability.h(:O241b:j22,:  0note: )expanded from macro 'absl_nonnull' 
<   N241, |  #\d
e      f| i                 ^n
e absl_nonnull _NIn file included from os2/s2lax_polygon_shape.ccn:n18u:
lIn file included from l../src/s2/s2lax_polygon_shape.h
:      36| :
                     ^In file included from 
../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:In file included from 202s2/s2loop.cc::718::
 In file included from warning: ../src/s2/s2loop.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
34:
In file included from ../src/s2/mutable_s2shape_index.h  :20230 | :
cIn file included from h/usr/local/clang/include/absl/container/btree_map.ha:r66*:
 In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s70l:
_In file included from n/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl: 116F:
aIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:I23n:
t/usr/local/clang/include/absl/strings/numbers.hT:o165B:u39f: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
er(  i165n | t 6 4 _ t   i ,   c h a r *   a b s l _ n o n n ualbls lb:u:fifnetr1)2
8      *|        ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 v  a241l | u#ed,e fiinnte  baabssel)_;n
o      n| n                                      ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_In file included from ns2/s2lax_polygon_shape.cco:n18n:
uIn file included from l../src/s2/s2lax_polygon_shape.hl: 36_:
NIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      30| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from 23s2/s2loop.cc:
:18/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 202../src/s2/s2loop.h::5334::
 In file included from warning: ../src/s2/mutable_s2shape_index.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h202: | 70c:
hIn file included from a/usr/local/clang/include/absl/container/internal/layout.hr:*198 :
aIn file included from b/usr/local/clang/include/absl/strings/str_cat.hs:l116_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl: 191F:a42s:t Iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ToB  u191f | fseirz(ei_ntt 6S4i_xtD iig,i tcshTaorB*u fafbesrl(_dnoounbnluel ld ,b ucfhfaerr*) 
a      b| s                                                    ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  bnote: uexpanded from macro 'absl_nonnull'f
fe  r241) | ;#
d      e| f                                         ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:In file included from 7s2/s2lax_polygon_shape.cc:: 18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2lax_polygon_shape.h:36:
  In file included from 198../src/s2/s2polygon.h | :c34h:
aIn file included from r../src/s2/mutable_s2shape_index.h*: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_66n:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hn:u70l:
lIn file included from  /usr/local/clang/include/absl/container/internal/layout.hF:a198s:
tIn file included from I/usr/local/clang/include/absl/strings/str_cat.hn:t116T:
oIn file included from B/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:f23f:
e/usr/local/clang/include/absl/strings/numbers.hr:(203i:n5t:3 2warning: _'diagnose_if' is a clang extension [-Wgcc-compat]t
 i,   c203h | a r *   aAbBsSlL__nIoNnTnEuRlNlA Lb_uNfEfEeDr_)M
I      N| _      ^S
IZ/usr/local/clang/include/absl/base/nullability.hE:(241b:u22f:f enote: rexpanded from macro 'absl_nonnull',
 k  F241a | s#tdTeofBiunfef earbSsilz_en)o;n
n      u| l    ^l
 _/usr/local/clang/include/absl/base/macros.hN:o251n:n18u:l lnote: 
expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'      
|                      ^
  251 |   __aIn file included from ts2/s2loop.cct:r18i:
bIn file included from u../src/s2/s2loop.ht:e34_:
_In file included from (../src/s2/mutable_s2shape_index.h(:d30i:
aIn file included from g/usr/local/clang/include/absl/container/btree_map.hn:o66s:
eIn file included from _/usr/local/clang/include/absl/container/internal/btree.hi:f70(:
_In file included from _/usr/local/clang/include/absl/container/internal/layout.hb:u198i:
lIn file included from t/usr/local/clang/include/absl/strings/str_cat.hi:n116_:
oIn file included from b/usr/local/clang/include/absl/strings/internal/stringify_sink.hj:e23c:
t/usr/local/clang/include/absl/strings/numbers.h_:s198i:z53e:( Owarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]j
, 0  )198  | <c hNa,r *\ 
a      b| s                 ^l
_nonnull FastIntToBIn file included from us2/s2lax_polygon_shape.ccf:f18e:
rIn file included from (../src/s2/s2lax_polygon_shape.hi:n36t:
3In file included from 2../src/s2/s2polygon.h_:t34 :
iIn file included from ,../src/s2/mutable_s2shape_index.h :c30h:
aIn file included from r/usr/local/clang/include/absl/container/btree_map.h*: 66a:
bIn file included from s/usr/local/clang/include/absl/container/internal/btree.hl:_70n:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
l buffeIn file included from r/usr/local/clang/include/absl/strings/str_cat.h):
116      :
| In file included from                                                     ^/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/strings/numbers.h241::20422::7 :note:  expanded from macro 'absl_nonnull'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e204f | icnhea ra*b salb_snlo_nnnounlnlu l_lN oFnansutlIln
t      T| o                     ^B
uffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2loop.cc241: | 18#:
dIn file included from e../src/s2/s2loop.hf:i34n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l70 :
_In file included from N/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl:
116      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
In file included from s2/s2lax_polygon_shape.cc  :19918 | :
 In file included from  ../src/s2/s2lax_polygon_shape.h : 36A:
BIn file included from S../src/s2/s2polygon.hL:_34I:
NIn file included from T../src/s2/mutable_s2shape_index.hE:R30N:
AIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:N66E:
EIn file included from D/usr/local/clang/include/absl/container/internal/btree.h_:M70I:
NIn file included from _/usr/local/clang/include/absl/container/internal/layout.hS:I198Z:
EIn file included from (/usr/local/clang/include/absl/strings/str_cat.hb:u116f:
fIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:,23 :
k/usr/local/clang/include/absl/strings/numbers.hF:a204s:t54T:o Bwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
fer  S204i | zceh)a;r
*       | a    ^b
sl/usr/local/clang/include/absl/base/macros.h_:n251o:n18n:u lnote: lexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
Fas  t251I | n t T_o_Bautftfreirb(uutien_t_6(4(_dti aig,n ocshea_ri*f (a_b_sblu_inlotninnu_lolb jbeucftf_esri)z
e      (| O                                                     ^b
j,/usr/local/clang/include/absl/base/nullability.h :0241): 22<:  Nnote: ,expanded from macro 'absl_nonnull' 
\
        241|  |                  ^#
define absl_nonnuIn file included from ls2/s2loop.ccl: 18_:
NIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      30| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FaIn file included from ss2/s2lax_polygon_shape.cct:I18n:
tIn file included from T../src/s2/s2lax_polygon_shape.ho:B36u:
fIn file included from f../src/s2/s2polygon.he:r34(:
uIn file included from i../src/s2/mutable_s2shape_index.hn:t303:
2In file included from _/usr/local/clang/include/absl/container/btree_map.ht: 66n:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.hc:h70a:
rIn file included from */usr/local/clang/include/absl/container/internal/layout.h :a198b:
sIn file included from l/usr/local/clang/include/absl/strings/str_cat.h_:n116o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:l23l:
 /usr/local/clang/include/absl/strings/numbers.ho:u205t:_5s:t rwarning: )'diagnose_if' is a clang extension [-Wgcc-compat]

      |       ^
  205 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iNnEeE Da_bMsIlN__nSoInZnEu(lblu f_fNeorn,n uklFla
s      t| T                     ^o
BufferSize)In file included from ;s2/s2loop.cc
:      18| :
    ^In file included from 
../src/s2/s2loop.h:34/usr/local/clang/include/absl/base/macros.h:
:In file included from 251../src/s2/mutable_s2shape_index.h::1830::
 In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
66:
In file included from   /usr/local/clang/include/absl/container/internal/btree.h251: | 70 :
 In file included from _/usr/local/clang/include/absl/container/internal/layout.h_:a198t:
tIn file included from r/usr/local/clang/include/absl/strings/str_cat.hi:b116u:
tIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:_23(:
(/usr/local/clang/include/absl/strings/numbers.hd:i200a:g54n:o swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
if(  _200_ | bcuhialrt*i na_bosblj_encotn_nsuilzle (FOabsjt,I n0t)T o<B uNf,f e\r
(      u| i                 ^n
t32_t n, char*In file included from  s2/s2lax_polygon_shape.cca:b18s:
lIn file included from _../src/s2/s2lax_polygon_shape.hn:o36n:
nIn file included from u../src/s2/s2polygon.hl:l34 :
oIn file included from u../src/s2/mutable_s2shape_index.ht:_30s:
tIn file included from r/usr/local/clang/include/absl/container/btree_map.h):
66      :
| In file included from                                                      ^/usr/local/clang/include/absl/container/internal/btree.h
:70/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/layout.h::22198::
 In file included from note: /usr/local/clang/include/absl/strings/str_cat.hexpanded from macro 'absl_nonnull':
116:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h241: | 23#:
d/usr/local/clang/include/absl/strings/numbers.he:f206i:n7e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o206n | ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l FastIntToBuffer(int128 i, char* abIn file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nosnln_unloln
      |                      ^
null buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2loop.ccl: 18_:
NIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      30| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116In file included from :
s2/s2lax_polygon_shape.ccIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h18::
23In file included from :
../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/strings/numbers.h::36207:
:In file included from 5../src/s2/s2polygon.h:: 34warning: :
'diagnose_if' is a clang extension [-Wgcc-compat]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h207: | 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h :A70B:
SIn file included from L/usr/local/clang/include/absl/container/internal/layout.h_:I198N:
TIn file included from E/usr/local/clang/include/absl/strings/str_cat.hR:N116A:
LIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:E23E:
D/usr/local/clang/include/absl/strings/numbers.h_:M206I:N52_:S Iwarning: Ztype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
(bu  f206f | ecrh,a rk*F aasbtsTlo_Bnuofnfneurl1l2 8FSaiszteI)n;t
T      o| B    ^u
ff/usr/local/clang/include/absl/base/macros.he:r251(:i18n:t 1note: 2expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'8
 i,   251c | h a r_*_ aatbtsrli_bnuotnen_u_l(l( dbiuafgfneors)e
_      i| f                                                   ^(
__/usr/local/clang/include/absl/base/nullability.hb:u241i:l22t:i nnote: _expanded from macro 'absl_nonnull'o
bj  e241c | t#_dseifzien(eO bajb,s l0_)n o<n nNu,l l\ 
_      N| o                 ^n
null
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* abIn file included from ss2/s2lax_polygon_shape.ccl:_18n:
oIn file included from n../src/s2/s2lax_polygon_shape.hn:u36l:
lIn file included from  ../src/s2/s2polygon.hF:a34s:
tIn file included from I../src/s2/mutable_s2shape_index.hn:t30T:
oIn file included from B/usr/local/clang/include/absl/container/btree_map.hu:f66f:
eIn file included from r/usr/local/clang/include/absl/container/internal/btree.h(:u70i:
nIn file included from t/usr/local/clang/include/absl/container/internal/layout.h1:21988:
 In file included from i/usr/local/clang/include/absl/strings/str_cat.h,: 116c:
hIn file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:*23 :
a/usr/local/clang/include/absl/strings/numbers.hb:s207l:_5n:o nwarning: n'diagnose_if' is a clang extension [-Wgcc-compat]u
ll b  u207f | f e r ) 
A      B| S      ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'N
EE  D241_ | M#IdNe_fSiInZeE (abbusflf_enro,n nkuFlals t_TNooBnunfuflelr
1      2| 8                     ^S
ize);
      |     ^
In file included from /usr/local/clang/include/absl/base/macros.hs2/s2loop.cc::25118::
18In file included from :../src/s2/s2loop.h :note: 34expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':

In file included from ../src/s2/mutable_s2shape_index.h:30  :
251In file included from  | /usr/local/clang/include/absl/container/btree_map.h : 66_:
_In file included from a/usr/local/clang/include/absl/container/internal/btree.ht:t70r:
iIn file included from b/usr/local/clang/include/absl/container/internal/layout.hu:t198e:
_In file included from _/usr/local/clang/include/absl/strings/str_cat.h(:(116d:
iIn file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hg:n23o:
s/usr/local/clang/include/absl/strings/numbers.he:_208i:f53(:_ _warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ilt  i208n | _cohbajre*c ta_bssilz_en(oOnbnju,l l0 )F a<s tNI,n t\T
o      B| u                 ^f
fer(uint128 i, cIn file included from hs2/s2lax_polygon_shape.cca:r18*:
 In file included from a../src/s2/s2lax_polygon_shape.hb:s36l:
_In file included from n../src/s2/s2polygon.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30b:
uIn file included from f/usr/local/clang/include/absl/container/btree_map.hf:e66r:
)In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                                                    ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22::116 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:23  :
241/usr/local/clang/include/absl/strings/numbers.h | :#208d:e7f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l208_ | ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^F
astIntToBuffer(uint128 i, char* absl_nonnullIn file included from  s2/s2loop.ccb:u18f:
fIn file included from e../src/s2/s2loop.hr:)34
:
      In file included from | ../src/s2/mutable_s2shape_index.h      ^:
30:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h241::6622:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'absl_nonnull'70
:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h241: | 198#:
dIn file included from e/usr/local/clang/include/absl/strings/str_cat.hf:i116n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n209o:n5n:u lwarning: l'diagnose_if' is a clang extension [-Wgcc-compat] 
_No  n209n | u l l 
       A| B                     ^S
L_INTERNAL_In file included from Ns2/s2lax_polygon_shape.ccE:E18D:
_In file included from M../src/s2/s2lax_polygon_shape.hI:N36_:
SIn file included from I../src/s2/s2polygon.hZ:E34(:
bIn file included from u../src/s2/mutable_s2shape_index.hf:f30e:
rIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :k66F:
aIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht:T70o:
BIn file included from u/usr/local/clang/include/absl/container/internal/layout.hf:f198e:
rIn file included from 1/usr/local/clang/include/absl/strings/str_cat.h2:8116S:
iIn file included from z/usr/local/clang/include/absl/strings/internal/stringify_sink.he:)23;:

/usr/local/clang/include/absl/strings/numbers.h      :| 208    ^:
53: /usr/local/clang/include/absl/base/macros.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]251
:18:   note: 208expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' | 
cha  251 |  r *_ _aabtstlr_inbountneu_l_l( (FdaisatgInnotsTeIn file included from o_s2/s2latlng_rect_bounder.ccBi:uf30f(:
f_In file included from e_../src/s2/s2pointutil.hbr:u(i27ul:
itn../src/s2/util/math/matrix3x3.hti:1n2762_:8o5 b:ij ,ewarning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] t
c_hsa  irz276*e |   (a Ob sb lSj_2n,_oC nHn0EuC)lKl _< Nb Eu(Nfdf,eet r,\) 

V      T      | y|                                                     ^                 ^p
e
(/usr/local/clang/include/absl/base/nullability.h0:)241): 22<:<  note: "expanded from macro 'absl_nonnull' 
Ca  n241'In file included from  | ts2/s2loop.cc# d:ie18nfv:
ieIn file included from nre../src/s2/s2loop.hs e:a.34b :
sDlIn file included from e_t../src/s2/mutable_s2shape_index.hneo:rn30mni:
unlIn file included from aln/usr/local/clang/include/absl/container/btree_map.h t_: N=66o n:
0n.In file included from u"l/usr/local/clang/include/absl/container/internal/btree.h;l
:
      70      | :
|     ^                     ^In file included from 

/usr/local/clang/include/absl/container/internal/layout.h:198../src/s2/base/logging.h:
:In file included from 37/usr/local/clang/include/absl/strings/str_cat.h::21116::
 In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :expanded from macro 'S2_CHECK_NE'23
:
/usr/local/clang/include/absl/strings/numbers.h   :37215 | :#7d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e S  2215_ | CcHhIn file included from Eas2/s2lax_polygon_shape.ccCr:K*18_ :
NaIn file included from Eb../src/s2/s2lax_polygon_shape.h s:Cl36H_:
EnIn file included from Co../src/s2/s2polygon.hKn:_n34Nu:
ElIn file included from l
../src/s2/mutable_s2shape_index.h       :F| 30                    ^a:

sIn file included from t/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/btree_map.hI::n12066t::
T3In file included from o:/usr/local/clang/include/absl/container/internal/btree.hB :note: u70fexpanded from macro 'CHECK_NE':
f
In file included from e/usr/local/clang/include/absl/container/internal/layout.hr  :(120198i | :
 nIn file included from  t/usr/local/clang/include/absl/strings/str_cat.hA_:tB116Sy:
LpIn file included from _e/usr/local/clang/include/absl/strings/internal/stringify_sink.hL :Oi23G,:
_
/usr/local/clang/include/absl/strings/numbers.hI      :N| 209T      ^:E
5R:/usr/local/clang/include/absl/base/nullability.hN Awarning: :L'diagnose_if' is a clang extension [-Wgcc-compat]_241
C:H22E  C:209K  | _ note: Nexpanded from macro 'absl_nonnull' E
 _ I  AM241BP | SL#L(d_(IevNafTliE1nR)Ne,A  In file included from L#as2/s2max_distance_targets.cc_vNb:aEs16lEl:
1D_In file included from ,_ n../src/s2/s2max_distance_targets.hM(o:IvNn27a_ln:
S2uIn file included from I)l../src/s2/s1angle.hZ,El: (# 28bvu_:
afNIn file included from olf2../src/s2/s2point.hn)n
u      l| l  ^

      |                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
In file included from s2/s2loop.cc   :5118 | :
 In file included from  ../src/s2/s2loop.hA:B34S:
LIn file included from _../src/s2/mutable_s2shape_index.hL:O30G:
_In file included from I/usr/local/clang/include/absl/container/btree_map.hN:T66E:
RIn file included from N/usr/local/clang/include/absl/container/internal/btree.hA:L70_:
CIn file included from H/usr/local/clang/include/absl/container/internal/layout.hE:C198K:
_In file included from O/usr/local/clang/include/absl/strings/str_cat.hP:(116C:
hIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hc:k23_:
N/usr/local/clang/include/absl/strings/numbers.hE:,216 :!49=:,  warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l1,   216v | a l 1 _ t e x t ,   v a l 2 ,   v a l 2 _ t e x t ) 
        |    ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 68 : 22 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' 
 ch   a68r | *   awbhsill_en o(ncnounlslt  bcuhfafre*r )a
b      s| l                                                ^_
nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241l | o#gd_eifnitneer naabls_lc_hneocnkn_uolpl_ r_eNsounlntu l l 
        |                       ^ 
    \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZEIn file included from (s2/s2latlng_rect_bounder.cc
:      30| :
    ^In file included from 
../src/s2/s2pointutil.h:27/usr/local/clang/include/absl/base/macros.h:
:../src/s2/util/math/matrix3x3.h251::27618::5 :note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  251../src/s2/base/logging.h | : 37 :_21_:a tnote: texpanded from macro 'S2_CHECK_NE'r
ib   u37t | e#_d_e(f(idniea gSn2o_sCeH_EiCfK(__N_Eb uCiHlEtCiKn__NoEb
j      e| c                    ^t
_s/usr/local/clang/include/absl/log/check.hi:z120e:(3O:b jnote: ,expanded from macro 'CHECK_NE' 
0)   <120  | N ,  A\B
S      L| _                 ^L
OG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2loop.ccs:l18_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                     ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBuffer:eZ25re:
,rIn file included from  o../src/s2/util/coding/coder.hkP:Fa36ad:
s1In file included from t6../src/s2/base/casts.hT(:ou34Bi:
unIn file included from ft/usr/local/clang/include/absl/log/log.h6f:e4209r_:
1t2 In file included from 8v/usr/local/clang/include/absl/log/internal/log_impl.hSa:il20z,:
 eIn file included from )c/usr/local/clang/include/absl/log/absl_vlog_is_on.h;h:
a63      r:
| */usr/local/clang/include/absl/log/internal/vlog_config.h    ^ :a
49b:s37l:/usr/local/clang/include/absl/base/macros.h_ :nwarning: 251otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:n
18n:u    lnote: 49lexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' |  
ionutt   )251R  | e {g
 i      _s_| t                                                           ^aet
rtAr/usr/local/clang/include/absl/base/nullability.hni:dbI241unt:iet22_i:_a (lnote: (iexpanded from macro 'absl_nonnull'dz
iea  (gV241nL | oo#sgdeeS_ifitfie(n*e_ _ abbausiblls_tlni_onnn_nooubnljnleu cvlt)l_; s
_i      Nz| eo                                    ^(n
Onbujl/usr/local/clang/include/absl/base/nullability.h,l: 
2410      :)| 22                      ^:<
  note: Nexpanded from macro 'absl_nonnull',
 \  
241       | | #                 ^d
efine absl_nonnull _Nonnull
      | In file included from                      ^s2/s2lax_polygon_shape.cc
:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* abslIn file included from _s2/s2max_distance_targets.ccn:o16n:
nIn file included from u../src/s2/s2max_distance_targets.hl:l27 :
FIn file included from a../src/s2/s1angle.hs:t28I:
nIn file included from t../src/s2/s2point.hT:o25B:
uIn file included from f../src/s2/util/coding/coder.hf:e36r:
(In file included from i../src/s2/base/casts.hn:t34_:
tIn file included from y/usr/local/clang/include/absl/log/log.hp:e209 :
iIn file included from ,/usr/local/clang/include/absl/log/internal/log_impl.h
:      20| :
      ^In file included from 
/usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/vlog_config.h241::6322::43 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |    #63d | e f ienxep laibcsilt_ ncoonnnsutlelx p_rN oVnLnouglSli
t      e| (                     ^c
onst char* absl_In file included from ns2/s2lax_polygon_shape.cco:n18n:
uIn file included from l../src/s2/s2lax_polygon_shape.hl: 36f:
)In file included from 
../src/s2/s2polygon.h      :| 34                                          ^:

In file included from ../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2266::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'absl_nonnull'70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :241198 | :
#In file included from d/usr/local/clang/include/absl/strings/str_cat.he:f116i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :a23b:
s/usr/local/clang/include/absl/strings/numbers.hl:_216n:o49n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o216n | n u l l 
        |                       ^ 
                                  char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2max_distance_targets.ccu:l16l:
 In file included from _../src/s2/s2max_distance_targets.hN:o27n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60:In file included from  s2/s2loop.ccwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2loop.h:34   :
96In file included from  | ../src/s2/mutable_s2shape_index.h : 30f:
rIn file included from i/usr/local/clang/include/absl/container/btree_map.he:n66d:
 In file included from i/usr/local/clang/include/absl/container/internal/btree.hn:t70 :
lIn file included from o/usr/local/clang/include/absl/container/internal/layout.hg:_198iIn file included from :
ns2/s2lax_polygon_shape.ccIn file included from t:/usr/local/clang/include/absl/strings/str_cat.he18:r:
n116In file included from a:
../src/s2/s2lax_polygon_shape.hlIn file included from ::/usr/local/clang/include/absl/strings/internal/stringify_sink.h36:::
R23In file included from e:
../src/s2/s2polygon.hg:/usr/local/clang/include/absl/strings/numbers.hi34s::
t330In file included from e:../src/s2/mutable_s2shape_index.hr41:A:30n :
dwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I/usr/local/clang/include/absl/container/btree_map.hn
:i66t:
iIn file included from a  /usr/local/clang/include/absl/container/internal/btree.hl330:i | 70z :
e In file included from ( /usr/local/clang/include/absl/container/internal/layout.h V: L198o :
 gIn file included from  S/usr/local/clang/include/absl/strings/str_cat.hi :t 116e :
* In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.ha :b 23s :
l /usr/local/clang/include/absl/strings/numbers.h_ :n 217o :n 5n :u  l warning: l'diagnose_if' is a clang extension [-Wgcc-compat]  
 v )  ; 217 
 |         i|                                                             ^n 
 tA_/usr/local/clang/include/absl/base/nullability.hBt:Sy241pL:e_22*I:N  Tanote: Eexpanded from macro 'absl_nonnull'bR
Ns  Al241 | #_dneofnLin_nNueE lEaDlb_ sMloI_uNnt_o)Sn In{Zu
El(      l
 |                                               ^_| N
    ^o
n/usr/local/clang/include/absl/base/nullability.hn:/usr/local/clang/include/absl/base/macros.hu241:l:251l22:
:18       :| note:                       ^expanded from macro 'absl_nonnull'note: 

expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  241 |   #251d | e f i_n_ea tatbrsilb_untoen_n_u(l(ld i_aNgonnonsuel_li
f      (| _                     ^_
builtin_object_size(Obj, 0) In file included from <s2/s2lax_polyline_shape.cc :N18,:
 In file included from \../src/s2/s2lax_polyline_shape.h
:      28| :
                 ^In file included from 
../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2loop.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2loop.h::8234:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/mutable_s2shape_index.h::2330:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/container/btree_map.h::3266:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/container/internal/btree.h::8470:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h/usr/local/clang/include/absl/container/internal/layout.h::29198:
:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/parser.h/usr/local/clang/include/absl/strings/str_cat.h::227116::
11In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23warning: :
'enable_if' is a clang extension [-Wgcc-compat]/usr/local/clang/include/absl/strings/numbers.h
:335:52:   227warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    335  |             e n a b l e _ i f ( s t r _ f o r m a t _ i n t e r n a l : : Eanbssulr:e:Cionnts1t2e8x*p ra(bfsolr_mnaotn)n,u
l      l|            ^o
ut) {
      | /usr/local/clang/include/absl/strings/internal/str_format/parser.h                                                   ^:
229:11/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22'enable_if' is a clang extension [-Wgcc-compat]:
 note: expanded from macro 'absl_nonnull'  
229 |    241  |  # d e f i n e  eanbasbll_eIn file included from n_s2/s2lax_polygon_shape.ccio:fn18(n:
suIn file included from tl../src/s2/s2lax_polygon_shape.hlr:_ 36f_:
oNIn file included from ro../src/s2/s2polygon.hnm:na34tu:
_lIn file included from il../src/s2/mutable_s2shape_index.h
n:t      30e| :
r                     ^In file included from n
/usr/local/clang/include/absl/container/btree_map.ha:l66::
:In file included from V/usr/local/clang/include/absl/container/internal/btree.ha:l70i:
dIn file included from F/usr/local/clang/include/absl/container/internal/layout.ho:r198m:
aIn file included from t/usr/local/clang/include/absl/strings/str_cat.hI:m116p:
lIn file included from </usr/local/clang/include/absl/strings/internal/stringify_sink.hC:.23.:
./usr/local/clang/include/absl/strings/numbers.h>:(247In file included from f:s2/s2max_distance_targets.cco47:r:m16 a:
warning: tIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])../src/s2/s2max_distance_targets.h
,:
27      :
|             ^In file included from 247
../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : In file included from 36 s2/s2loop.cc:
 :In file included from  18../src/s2/base/casts.h :
: In file included from 34 ../src/s2/s2loop.h:
 :In file included from  34/usr/local/clang/include/absl/log/log.h :
: In file included from 209 ../src/s2/mutable_s2shape_index.h:
 :In file included from  30/usr/local/clang/include/absl/log/internal/log_impl.h :
: In file included from 20 /usr/local/clang/include/absl/container/btree_map.h:
 :In file included from  66/usr/local/clang/include/absl/log/absl_vlog_is_on.h :
: In file included from 63 /usr/local/clang/include/absl/container/internal/btree.h:
 :/usr/local/clang/include/absl/log/internal/vlog_config.h 70: :
119 In file included from :i/usr/local/clang/include/absl/container/internal/layout.h15n::t198 _:
warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from y
p/usr/local/clang/include/absl/strings/str_cat.he:*  116 119:
a | bIn file included from  s /usr/local/clang/include/absl/strings/internal/stringify_sink.hlc_:onn23os:
ntn/usr/local/clang/include/absl/strings/numbers.h uc:lhl340a :ro*53u :ta, b warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]il
n_tn o  bna340ns | u el ) l   {c 
o       n | s                                              ^ t
   /usr/local/clang/include/absl/base/nullability.hf :i 241l :e 22_ :;   
note:        expanded from macro 'absl_nonnull' | 
               ^   
241  | /usr/local/clang/include/absl/base/nullability.h #:d 241e :f 22i :n  e   a b s l _ n o nanbuslll: :_uNionntn1u2l8l*
       a| b                     ^s
l_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h  :30334 | :
iIn file included from n../src/s2/mutable_s2shape_index.hl:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.hs:i66z:
eIn file included from _/usr/local/clang/include/absl/container/internal/btree.ht: 70F:
aIn file included from s/usr/local/clang/include/absl/container/internal/layout.ht:H198e:
xIn file included from T/usr/local/clang/include/absl/strings/str_cat.ho:B116u:
fIn file included from f/usr/local/clang/include/absl/strings/internal/stringify_sink.he:r23Z:
e/usr/local/clang/include/absl/strings/numbers.hr:o356P:a56d:1 6warning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
int6  4356_ | t   v a l ,   c h a r *   a b s l _ n o n n u l l   o u t )   { 
        |                                                             ^ 
   /usr/local/clang/include/absl/base/nullability.h :a241b:s22l:: :note: uexpanded from macro 'absl_nonnull'i
nt  12412 | 8#*d eafbisnle_ naobnsnlu_lnlo nonuutl)l  {_
N      o| n                                                       ^n
ul/usr/local/clang/include/absl/base/nullability.hl:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 | 
        |                       ^ 
  __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2lax_polygon_shape.cc/usr/local/clang/include/absl/strings/internal/str_format/bind.h::18162:
:In file included from 22../src/s2/s2lax_polygon_shape.h:: 36:
warning: In file included from 'enable_if' is a clang extension [-Wgcc-compat]../src/s2/s2polygon.h
:34:
In file included from ../src/s2/mutable_s2shape_index.h  :16230 | :
 In file included from In file included from  s2/s2loop.cc/usr/local/clang/include/absl/container/btree_map.h :: 1866 :
:
 In file included from In file included from _../src/s2/s2loop.h/usr/local/clang/include/absl/container/internal/btree.h_::a3470t:
:
tIn file included from In file included from r../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/container/internal/layout.hi::b30198u:
:
tIn file included from In file included from e/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/str_cat.h_::_66116(:
:
(In file included from In file included from e/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/strings/internal/stringify_sink.hn::a7023b:
:
lIn file included from /usr/local/clang/include/absl/strings/numbers.he/usr/local/clang/include/absl/container/internal/layout.h:_:330i198:f:
41(:/usr/local/clang/include/absl/strings/str_cat.hV :awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]223i
d:F25o:  r 330m | a warning: t Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] m
 p l < A   r223 g  | s   . e. x. >p (l si ) c,i t   " Hb ae xd  ( fP o or mi an tti netet*r _aatbpsyl"_pn)eu)l*)l a
ab      lbe|  s                     ^vl,
 _PnaodnSnpuelcl  sopuetc)  ={ 
a      b| s                                        ^l
::k/usr/local/clang/include/absl/base/nullability.hN:o241P:a22d:) 
      note: | expanded from macro 'absl_nonnull'                        ^

  241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<In file included from As2/s2lax_polygon_shape.ccr:g18s:
.In file included from .../src/s2/s2lax_polygon_shape.h.:>36&:
 In file included from f../src/s2/s2polygon.ho:r34m:
aIn file included from t../src/s2/mutable_s2shape_index.h,:
30      :
| In file included from                        ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h::24170::
22In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/str_cat.h:398  :24124 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine a  b398s | l _ nAolnpnhualNlu m_(Ncoonnnsutl lc
h      a| r                     ^*
 absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2lax_polyline_shape.cc
:18:
In file included from   ../src/s2/s2lax_polyline_shape.h257: | 28#:
dIn file included from e../src/s2/encoded_s2point_vector.hf:i29n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:l29e:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:u82l:
lIn file included from a/usr/local/clang/include/absl/crc/internal/crc_cord_state.hb:l23e:

In file included from       /usr/local/clang/include/absl/crc/crc32c.h| :                      ^32
:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from s2/s2lax_polygon_shape.cc/usr/local/clang/include/absl/strings/cord.h::1882:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::3623:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/crc/crc32c.h::3432:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/str_format.h::30503:
:In file included from 20/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h503: | 198 :
 /usr/local/clang/include/absl/strings/str_cat.hF:o431r:m15a:t Rwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]w
Sink  (431T | *   acbosnls_tn ocnhnaurl*l  arbaswl)_ n u/l/l aNbOlLeI NdTa
t      a| (                   ^)
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :{  note: rexpanded from macro 'absl_nonnull'e
tu  r241n |  #pdieefcien_e. daabtsal(_)n;o n}n
u      l| l              ^ 
_No/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:
       | note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnull   _867N | o n neuxlpll
i      c| i                     ^t
 FormatSink(str_format_intIn file included from es2/s2lax_polygon_shape.ccr:n18a:
lIn file included from :../src/s2/s2lax_polygon_shape.h::F36o:
rIn file included from m../src/s2/s2polygon.ha:t34S:
iIn file included from n../src/s2/mutable_s2shape_index.hk:I30m:
pIn file included from l/usr/local/clang/include/absl/container/btree_map.h*: 66a:
bIn file included from s/usr/local/clang/include/absl/container/internal/btree.hl:_70n:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
l/usr/local/clang/include/absl/strings/str_cat.h :s637):
29      :|                                                             ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:  241637: | 22v:o inote: dexpanded from macro 'absl_nonnull' 
St  r241A | p#pdeenfdi(nset da:b:sslt_rnionngn*u lalb s_lN_onnonnunlull
l       | d                     ^e
st, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2lax_polyline_shape.ccn:e18 :
aIn file included from b../src/s2/s2lax_polyline_shape.hs:l28_:
nIn file included from o../src/s2/encoded_s2point_vector.hn:n29u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |  In file included from  s2/s2lax_polygon_shape.ccs:t18r:
_In file included from f../src/s2/s2lax_polygon_shape.ho:r36m:
aIn file included from t../src/s2/s2polygon.h_:i34n:
tIn file included from e../src/s2/mutable_s2shape_index.hr:n30a:
lIn file included from :/usr/local/clang/include/absl/container/btree_map.h::F66o:
rIn file included from m/usr/local/clang/include/absl/container/internal/btree.ha:t70S:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.hk:I198:
m/usr/local/clang/include/absl/strings/str_cat.hp:l639*: 29a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n639u | lvlo isdi nSkt_r;A
p      p| e                                       ^n
d(s/usr/local/clang/include/absl/base/nullability.ht:d241:::22s:t rnote: iexpanded from macro 'absl_nonnull'n
g*   241a | b#sdle_fnionnen ualbls ld_ensotn,n ucloln s_tN oAnlnpuhlalN
u      m| &                     ^ 
a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
s2/s2loop_measures.cc:18   :
32In file included from  | ../src/s2/s2loop_measures.h#:d33e:
fIn file included from i../src/s2/s1angle.hn:e28 :
AIn file included from B../src/s2/s2point.hS:L27_:
IIn file included from N../src/s2/s2coder.hT:E23R:
NIn file included from A/usr/local/clang/include/absl/status/status.hL:_67I:
FIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hf:a29l:
sIn file included from e/usr/local/clang/include/absl/strings/cord.h(:i86f:
_s/usr/local/clang/include/absl/strings/cord_analysis.ha:t32i:s47f:i ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 ...)    _32_ | VsAi_zAeR_GtS _G_e
t      E| s        ^t
imatedMemoryUsage(const CordRep* absl_nonnull reIn file included from ps2/s2lax_polygon_shape.cc):;18
:
      In file included from | ../src/s2/s2lax_polygon_shape.h                                              ^:
36:
In file included from ../src/s2/s2polygon.h:34:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/mutable_s2shape_index.h241::3022:
:In file included from  /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'absl_nonnull'67
:
/usr/local/clang/include/absl/container/internal/btree_container.h  :241543 | :#23d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e   a543b | s l _ n o n n u l l   _ N o n n u l lt
r      u| e                     ^)
;
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define In file included from As2/s2loop_measures.ccB:S18L:
_In file included from I../src/s2/s2loop_measures.hN:T33E:
RIn file included from N../src/s2/s1angle.hA:L28_:
XIn file included from (../src/s2/s2point.hF:u27n:
cIn file included from ,../src/s2/s2coder.h :C23a:
lIn file included from l/usr/local/clang/include/absl/status/status.he:e67,:
 In file included from K/usr/local/clang/include/absl/status/internal/status_internal.hQ:u29a:
lIn file included from ,/usr/local/clang/include/absl/strings/cord.h :M86Q:
u/usr/local/clang/include/absl/strings/cord_analysis.ha:l50,: 49K:V awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e, M   V50a | lsuiez,e _.t. .G)e t M o r e\P
r      e| c        ^i
seMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2coder.h542::233:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
542In file included from  | /usr/local/clang/include/absl/strings/cord.h : 86A:
B/usr/local/clang/include/absl/strings/cord_analysis.hS:L56_:I56N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_X   (56i | nssiezret__to rG_eatsEssitginm,a tiendsFearitr_Sohra_raesMseimgonr_yiUmspalg,e (&c&o,n scto nCsotr d&R,e pf*a lasbes,l
_      n| o  ^n
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509 :r52e:p )note: ;expanded from macro 'ABSL_INTERNAL_X'

      |                                                        ^
  509 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2loop.cc::50918::
52In file included from :../src/s2/s2loop.h :note: 34expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/mutable_s2shape_index.h:30  :
509In file included from  | /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.hA:B82S:
LIn file included from _/usr/local/clang/include/absl/crc/internal/crc_cord_state.hI:N23T:
EIn file included from R/usr/local/clang/include/absl/crc/crc32c.hN:A32L:
_In file included from A/usr/local/clang/include/absl/strings/str_format.hT:T84R:
IIn file included from B/usr/local/clang/include/absl/strings/internal/str_format/bind.hU:T29E:
_C/usr/local/clang/include/absl/strings/internal/str_format/parser.hA:P227T:U11R:E Dwarning: _'enable_if' is a clang extension [-Wgcc-compat]B
Y(thi  s227) | ) ,                  e n a b l e _ i f ( s t r _ f o\r
m      a| t                                                   ^_
in/usr/local/clang/include/absl/container/internal/common.ht:e31r:n9a:l :note: :macro 'ABSL_INTERNAL_IF_true' defined hereE
nsu   r31e | C#odnesftienxep rA(BfSoLr_mIaNtT)E,R
N      A| L          ^_
IF_tru/usr/local/clang/include/absl/strings/internal/str_format/parser.he:(229i:f11_:s awarning: t'enable_if' is a clang extension [-Wgcc-compat]i
sfi  e229d | ,   . . . )   i f _ seantaibslfei_eidf
(      s| t        ^r
_format_internal::In file included from Vs2/s2lax_polygon_shape.cca:l18i:
dIn file included from F../src/s2/s2lax_polygon_shape.ho:r36m:
aIn file included from t../src/s2/s2polygon.hI:m34p:
lIn file included from <../src/s2/mutable_s2shape_index.hC:.30.:
.In file included from >/usr/local/clang/include/absl/container/btree_map.h(:f67o:
r/usr/local/clang/include/absl/container/internal/btree_container.hm:a546t:)3,:
       warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]          ^

  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(FunIn file included from cs2/s2loop.cc,: 18C:
aIn file included from l../src/s2/s2loop.hl:e34e:
,In file included from  ../src/s2/mutable_s2shape_index.hK:Q30u:
aIn file included from l/usr/local/clang/include/absl/container/btree_map.h,: 66M:
QIn file included from u/usr/local/clang/include/absl/container/internal/btree.ha:l73,:
 In file included from K/usr/local/clang/include/absl/strings/cord.hV:a82l:
uIn file included from e/usr/local/clang/include/absl/crc/internal/crc_cord_state.h,: 23M:
VIn file included from a/usr/local/clang/include/absl/crc/crc32c.hl:u32e:
,In file included from  /usr/local/clang/include/absl/strings/str_format.h.:.84.:
) /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 143 : 11\:
       | warning:         ^'enable_if' is a clang extension [-Wgcc-compat]

  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h/usr/local/clang/include/absl/container/internal/btree_container.h::149549::223::  warning: warning: 'enable_if' is a clang extension [-Wgcc-compat]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    149549 |  |      A B S L___IaNtTtErRiNbAuLt_eX_(_i(n(seenratb_loer__iafs(ssitgrn_,f oirnmsaetr_ti_notre_ransasli:g:nE_nismuprle,C o&n&s,t e&x&p,r (fsa)l,s
e      ,| 
                     ^      
|   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL/usr/local/clang/include/absl/strings/internal/str_format/bind.h_:A158T:T22R:I Bwarning: U'enable_if' is a clang extension [-Wgcc-compat]T
E_CA  P158T | U R E D _ B Y_(_tahtitsr)i)b,u t e _ _ ( ( e n a b l e _ i f ( V a l i d F o r\m
a      t| I                                                   ^m
pl/usr/local/clang/include/absl/container/internal/common.h<:A32r:g9s:. .note: .macro 'ABSL_INTERNAL_IF_false' defined here>
(s)   ,32  | "#bdaedf ifnoer mAaBtS Lt_rIaNpT"E)R)N)A
L      _| I                     ^F
_false(if_satisfied, ...) __VA_/usr/local/clang/include/absl/strings/internal/str_format/bind.hA:R162G:S22_:_ 
      warning: | 'enable_if' is a clang extension [-Wgcc-compat]        ^

  162 |       In file included from _s2/s2lax_polygon_shape.cc_:a18t:
tIn file included from r../src/s2/s2lax_polygon_shape.hi:b36u:
tIn file included from e../src/s2/s2polygon.h_:_34(:
(In file included from e../src/s2/mutable_s2shape_index.hn:a30b:
lIn file included from e/usr/local/clang/include/absl/container/btree_map.h_:i67f:
(/usr/local/clang/include/absl/container/internal/btree_container.hV:a549l:i3d:F owarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]m
atI  m549p | l < AArBgSsL._.I.N>T(EsR)N,A L"_bXa(di nfsoerrmta_to rt_raasps"i)g)n),
       i| n                     ^s
ert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))In file included from )s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from \/usr/local/clang/include/absl/strings/cord.h
:      82| :
                                                   ^In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:/usr/local/clang/include/absl/container/internal/common.h23::
32In file included from :/usr/local/clang/include/absl/crc/crc32c.h9::32 :
note: macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/strings/str_format.h
:115:52   :32  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efine   A115B | S L _ I N T EcRoNnAsLt_ IsFt_rf_aflosrem(aitf__isnatteirsnfaile:d:,P a.r.s.e)d F_o_rVmAa_tABRaGsSe_*_ 
a      b| s        ^l
_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assiIn file included from gs2/s2loop.ccn:_18h:
iIn file included from n../src/s2/s2loop.ht:_34i:
mIn file included from p../src/s2/mutable_s2shape_index.hl:,30 :
cIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:s66t:
 In file included from &/usr/local/clang/include/absl/container/internal/btree.h,:
73      :
| In file included from   ^/usr/local/clang/include/absl/strings/cord.h
:82:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h509::2352:
:In file included from  /usr/local/clang/include/absl/crc/crc32c.hnote: :expanded from macro 'ABSL_INTERNAL_X'32
:
/usr/local/clang/include/absl/strings/str_format.h:  155509: | 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       155A | B S Le_xIpNlTiEcRiNtA LF_oArTmTaRtICBoUuTnEt_CCaApPtTuUrReE(Di_nBtY*( tahbissl)_)n,o n n u l l   p )   :   p _ ( p )   { } 
        |                                     ^ 
\
      /usr/local/clang/include/absl/base/nullability.h| :                                                   ^241
:22/usr/local/clang/include/absl/container/internal/common.h:: 32note: :expanded from macro 'absl_nonnull'9
:   note: 241macro 'ABSL_INTERNAL_IF_false' defined here | 
#de   f32i | n#ed eafbisnle_ nAoBnSnLu_lIlN T_ENRoNnAnLu_lIlF
_      f| a                     ^l
se(if_satisfied, ...) __VA_ARGS__
In file included from       s2/s2loop.cc| :        ^18
:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2lax_polygon_shape.cc::6618:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2lax_polygon_shape.h::7336:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2polygon.h::8234:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/mutable_s2shape_index.h::2330:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/container/btree_map.h::3267:
:
/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/container/internal/btree_container.h::164558::83::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    164558 |  |     iAnBtS*L _aIbNsTlE_RnNoAnLn_uXl(li nUsneurste_do(r)_ a{s sriegtnu,r ni nps_e;r t}_
o      r| _       ^a
ssi/usr/local/clang/include/absl/base/nullability.hg:n241_:h22i:n tnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #cdoenfsitn e& ,a
b      s| l  ^_
no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:  _note: Nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l511l | 
        |                       ^ 
      ABSL_INTIn file included from Es2/s2loop.ccR:N18A:
LIn file included from _../src/s2/s2loop.hA:T34T:
RIn file included from I../src/s2/mutable_s2shape_index.hB:U30T:
EIn file included from _/usr/local/clang/include/absl/container/btree_map.hC:A66P:
TIn file included from U/usr/local/clang/include/absl/container/internal/btree.hR:E73D:
_In file included from B/usr/local/clang/include/absl/strings/cord.hY:(82t:
hIn file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:)23):
)In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 165 : 8 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     165  |      i n t *\ 
a      b| s                                                   ^l
_n/usr/local/clang/include/absl/container/internal/common.ho:n31n:u9l:l  note: pmacro 'ABSL_INTERNAL_IF_true' defined here_
;
         | 31       ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eI Fa_btsrlu_en(oinfn_uslalt i_sNfoinendu,l l.
.      .| )                     ^ 
if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, falseIn file included from ,s2/s2loop.cc :t18r:
uIn file included from e../src/s2/s2loop.h,:
34      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~../src/s2/mutable_s2shape_index.h
:30:
  In file included from 560/usr/local/clang/include/absl/container/btree_map.h | : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from c/usr/local/clang/include/absl/crc/crc32c.ho:n32s:
t/usr/local/clang/include/absl/strings/str_format.h_:i380t:e43r:a twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
(hin  t380) |  sAtBdS:L:_sItNrTiEnRgN&A LS_tCrOAMpMpAe)n;d
F      o| r                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~m
at(/usr/local/clang/include/absl/container/internal/btree_container.hs:t511d::47::s tnote: rexpanded from macro 'ABSL_INTERNAL_X'i
ng*   511a | b s l _ n o n n u l lA BdSsLt_,I
N      T| E                                          ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_  C241A | P#TdUeRfEiDn_eB Ya(btshli_sn)o)n)n u l l   _ N o n n u l l 
        |                       ^ 
       \
      |                                               ^~~~
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull out/usr/local/clang/include/absl/container/internal/btree_container.hp:u561t:,3 :c owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
t Fo  r561m | a t SApBeScL<_AIrNgTsE.R.N.A>L&_ Xf(oirnmsaetr,t
_      o| r                       ^_
ass/usr/local/clang/include/absl/base/nullability.hi:g241n:,22 :i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen _ahbisnlt__niomnpnlu,l lc o_nNsotn n&u,l
l      
|         ^| 
                     ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2/s2loop.cc):,18 :
 In file included from  ../src/s2/s2loop.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :\82
:
      In file included from | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h                                                   ^:
23:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/crc/crc32c.h::3132::
9/usr/local/clang/include/absl/strings/str_format.h:: 469note: :macro 'ABSL_INTERNAL_IF_true' defined here20
: warning:    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
 | #d  e469f | iinnet  ASBNSPLr_iInNtTFE(RcNhAaLr_*I Fa_btsrlu_en(oinfn_uslalt iosuftipeudt,,  .s.t.d): :isfi_zsea_tti ssfiizeed,

            | |         ^                   ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2lax_polygon_shape.cci:n18e:
 In file included from a../src/s2/s2lax_polygon_shape.hb:s36l:
_In file included from n../src/s2/s2polygon.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30_:
NIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl:
561      :| 3                     ^:
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |       In file included from  s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h :c30o:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.ht: 66&:
,In file included from  /usr/local/clang/include/absl/container/internal/btree.ht:r73u:
eIn file included from ,/usr/local/clang/include/absl/strings/cord.h :f82a:
lIn file included from s/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:,23
:
      In file included from | /usr/local/clang/include/absl/crc/crc32c.h                  ~~~~~~~~~~~~~~~~~~~~~:
32:
  /usr/local/clang/include/absl/strings/str_format.h563: | 503 : 20 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      503  |      F o r mcaotnRsatw_Siitnekr(aTt*o ra(bhsiln_tn)o nAnBuSlLl_ IrNaTwE)R N A/L/_ CNOOMLMIAN)T;

            | |                    ^                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/btree_container.h241::50922::47 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_INTERNAL_X'
  241 | #  d509e | f i n e   a b s l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lAlT
T      R| I                     ^B
UTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                In file included from  s2/s2loop.cc : 18c:
oIn file included from n../src/s2/s2loop.hs:t34_:
iIn file included from t../src/s2/mutable_s2shape_index.he:r30a:
tIn file included from o/usr/local/clang/include/absl/container/btree_map.hr:(66h:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.ht:)73 :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L82_:
IIn file included from N/usr/local/clang/include/absl/crc/internal/crc_cord_state.hT:E23R:
NIn file included from A/usr/local/clang/include/absl/crc/crc32c.hL:_32C:
OM/usr/local/clang/include/absl/strings/str_format.hM:A860):;43
:       | warning:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:511  :86047 | :   note: fexpanded from macro 'ABSL_INTERNAL_X'r
ien  d511  | v o i d   A b s l F oArBmSaLt_FIlNuTsEhR(NFAoLr_mAaTtTSRiInBkU*T Ea_bCsAlP_TnUoRnEnDu_lBlY (stihniks,)
)      )|                                            ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                                              ^~~~s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/strings/cord.h568::823:
:In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32  :
568/usr/local/clang/include/absl/strings/str_format.h | : 869 :A40B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTE  R869N | A L _sXt(ri_nfsoerrmta_to_ri_natsesringanl,: :iFnosremratt_Soirn_kaIsmspilg*n _ahbisnlt__niomnpnlu,l lc osnisntk _&;,
       &| &                                       ^,

      | /usr/local/clang/include/absl/base/nullability.h  ^:
241:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 509note: :expanded from macro 'absl_nonnull'52
:   note: 241expanded from macro 'ABSL_INTERNAL_X' | 
#de  f509i | n e   a b s l _ n o nAnBuSlLl_ I_NNToEnRnNuAlLl_
A      T| T                     ^R
IBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      | In file included from   ^s2/s2measures.cc
:18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509../src/s2/s2measures.h::5224::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'ABSL_INTERNAL_X':
24:
In file included from /usr/local/clang/include/absl/hash/hash.h  :50989 | :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h : 26 :
AB/usr/local/clang/include/absl/base/internal/unaligned_access.hS:L39_:I45N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_ATTRIB   U39T | Ei_nClAiPnTeU RuEiDn_tB1Y6(_tth iUsn)a)l,i g n e d L o a d 1 6 ( c o n s t   v o i d *   a\b
s      l| _                                                   ^n
on/usr/local/clang/include/absl/container/internal/common.hn:u31l:l9 :p )note:  macro 'ABSL_INTERNAL_IF_true' defined here{

      |                                                ^31
 | #define /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#IdFe_ftirnuee (aibfs_ls_antoinsnfuileld ,_ N.o.n.n)u lilf
_      s| a                     ^t
isfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, iIn file included from ns2/s2measures.ccs:e18r:
tIn file included from _../src/s2/s2measures.ho:r24_:
aIn file included from s../src/s2/s2point.hs:i24g:
nIn file included from _/usr/local/clang/include/absl/hash/hash.hh:i89n:
tIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hi:m79p:
lIn file included from ,/usr/local/clang/include/absl/base/internal/endian.h :c26o:
n/usr/local/clang/include/absl/base/internal/unaligned_access.hs:t45 :&45,:  &warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   45 |   i573n | l i n e   u i n t 3 2 _ t   U n a l itgrnueed,L ofaadl3s2e(,c ocnosnts tv_oiitde*r aatbosrl(_hnionntn)u lAlB SpL)_ I{N
T      E| R                                            ^N
AL_/usr/local/clang/include/absl/base/nullability.hC:O241M:M22A:) ;note: 
expanded from macro 'absl_nonnull'      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e509f:i47n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n509o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2measures.cc
:18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/s2measures.h::5224::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'ABSL_INTERNAL_X':
24:
In file included from /usr/local/clang/include/absl/hash/hash.h  :51189 | :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h : 26 :
A/usr/local/clang/include/absl/base/internal/unaligned_access.hB:S51L:_45I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_   A51T | TiRnIlBiUnTeE _uCiAnPtT6U4R_EtD _UBnYa(ltihginse)d)L)o a d 6 4 ( c o n s t   v o i d *   a b s l _ n o\n
n      u| l                                                   ^l
 p/usr/local/clang/include/absl/container/internal/common.h): 32{:
9      :|                                              ^note: 
macro 'ABSL_INTERNAL_IF_false' defined here
/usr/local/clang/include/absl/base/nullability.h:241   :3222 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | A#BdSeLf_iInNeT EaRbNsAlL__nIoFn_nfuallls e_(Niofn_nsualtli
s      f| i                     ^e
d, ...) __VA_ARGS__
      |         ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.hIn file included from :s2/s2measures.cc30::
18In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s2measures.h67::
24:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2point.h574::243:
:In file included from  /usr/local/clang/include/absl/hash/hash.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]89
:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79  :
574In file included from  | /usr/local/clang/include/absl/base/internal/endian.h : 26A:
B/usr/local/clang/include/absl/base/internal/unaligned_access.hS:L61_:I36N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_X   (61i | nisnelritn_eo rv_oaisds iUgnna,l iignnseedrStt_oorre_3a2s(sviogind_*h ianbts_li_mnpoln,n ucloln spt,  &u,i n&t&3,2
_      t|    ^v
) /usr/local/clang/include/absl/container/internal/btree_container.h{:
509      :| 52                                   ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X':
241:22:   509note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f iAnBeS La_bIsNlT_EnRoNnAnLu_lAlT T_RNIoBnUnTuEl_lC
A      P| T                     ^U
RED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | In file included from #s2/s2measures.ccd:e18f:
iIn file included from n../src/s2/s2measures.he: 24A:
BIn file included from S../src/s2/s2point.hL:_24I:
NIn file included from T/usr/local/clang/include/absl/hash/hash.hE:R89N:
AIn file included from L/usr/local/clang/include/absl/hash/internal/hash.h_:I79F:
_In file included from t/usr/local/clang/include/absl/base/internal/endian.hr:u26e:
(/usr/local/clang/include/absl/base/internal/unaligned_access.hi:f65_:s36a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied,    65. | .i.n)l iinfe_ svaotiids fUineadl
i      g| n        ^e
dStore64(void* abslIn file included from _s2/s2lax_polygon_shape.ccn:o18n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l36 :
pIn file included from ,../src/s2/s2polygon.h :u34i:
nIn file included from t../src/s2/mutable_s2shape_index.h6:430_:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hv:)67 :
{/usr/local/clang/include/absl/container/internal/btree_container.h
:      574| :                                   ^3
: /usr/local/clang/include/absl/base/nullability.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]241
:22: note: expanded from macro 'absl_nonnull'  
574 |    241  | A#BdSeLf_iInNeT EaRbNsAlL__nXo(ninnuslelr t__Noorn_nauslsli
g      n| ,                     ^ 
insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
In file included from    s2/s2measures.cc32: | 18#:
dIn file included from e../src/s2/s2measures.hf:i24n:
eIn file included from  ../src/s2/s2point.hA:B24S:
LIn file included from _/usr/local/clang/include/absl/hash/hash.hI:N89T:
EIn file included from R/usr/local/clang/include/absl/hash/internal/hash.hN:A79L:
_I/usr/local/clang/include/absl/base/internal/endian.hF:_160f:a36l:s ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
f_sa  t160i | sifnileidn,e  .u.i.n)t 1_6__VtA _LAoRaGdS1_6_(
c      o| n        ^s
t void* aIn file included from bs2/s2lax_polygon_shape.ccs:l18_:
nIn file included from o../src/s2/s2lax_polygon_shape.hn:n36u:
lIn file included from l../src/s2/s2polygon.h :p34):
 In file included from {../src/s2/mutable_s2shape_index.h
:      30| :
                                   ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h::241579::223::  note: warning: expanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  241 |   #579d | e f iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( i_nNsoenrntu_lolr
_      a| s                     ^s
ign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: In file included from note: s2/s2measures.ccexpanded from macro 'ABSL_INTERNAL_X':
18:
In file included from ../src/s2/s2measures.h  :51124 | :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
AIn file included from B/usr/local/clang/include/absl/hash/internal/hash.hS:L79_:
I/usr/local/clang/include/absl/base/internal/endian.hN:T164E:R27N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
TTRI  B164U | TiEn_lCiAnPeT UvRoEiDd_ BSYt(otrhei1s6)()v)o i d *   a b s l _ n o n n u l l   p ,   u i n t\1
6      _| t                                                   ^ 
v)/usr/local/clang/include/absl/container/internal/common.h :{31
:      9| :                          ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/base/nullability.h
:241:   2231: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oInFn_utlrlu e_(Niofn_nsualtli
s      f| i                     ^e
d, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: In file included from warning: s2/s2measures.cc'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
18:
In file included from ../src/s2/s2measures.h:24:
  In file included from 579../src/s2/s2point.h | : 24 :
AIn file included from B/usr/local/clang/include/absl/hash/hash.hS:L89_:
IIn file included from N/usr/local/clang/include/absl/hash/internal/hash.hT:E79R:
N/usr/local/clang/include/absl/base/internal/endian.hA:L168_:X36(:i nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rt_  o168r | _ianslsiingen ,u iinnts3e2r_tt_ oLro_aads3s2i(gcno_nhsitn tv_oiimdp*l ,a b&s&l,_ ncoonnnsutl l& ,p
)       | {  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |                                    ^
  580 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f ifnael saeb,s lt_rnuoen,n ucloln s_tN_ointneurlalt
o      r| (                     ^h
int) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |     In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.hA:B24S:
LIn file included from _../src/s2/s2point.hI:N24T:
EIn file included from R/usr/local/clang/include/absl/hash/hash.hN:A89L:
_In file included from A/usr/local/clang/include/absl/hash/internal/hash.h:T79T:
R/usr/local/clang/include/absl/base/internal/endian.hI:B172U:T27E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TUR  E172D | _iBnYl(itnhei sv)o)i)d   S t o r e 3 2 ( v o i d *   a b s l _ n o n n\u
l      l|                                                ^~~~p
, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assigIn file included from ns2/s2measures.cc,: 18i:
nIn file included from s../src/s2/s2measures.he:r24t:
_In file included from o../src/s2/s2point.hr:_24a:
sIn file included from s/usr/local/clang/include/absl/hash/hash.hi:g89n:
_In file included from h/usr/local/clang/include/absl/hash/internal/hash.hi:n79t:
_/usr/local/clang/include/absl/base/internal/endian.hi:m180p:l27,:  &warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 con  s180t |  i&n,l
i      n| e  ^ 
vo/usr/local/clang/include/absl/container/internal/btree_container.hi:d509 :S52t:o rnote: eexpanded from macro 'ABSL_INTERNAL_X'6
4(v  o509i | d *   a b s l _ n o nAnBuSlLl_ IpN,T EuRiNnAtL6_4A_TtT RvI)B U{T
E      _| C                          ^A
PT/usr/local/clang/include/absl/base/nullability.hU:R241E:D22_:B Ynote: (expanded from macro 'absl_nonnull't
hi  s241) | )#,d e f i n e   a b s l _ n o n n u l l   _ N o n n\u
l      l| 
                                                   ^      
|                      ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |        In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.h : 24 :
 In file included from  ../src/s2/s2point.ht:r24u:
eIn file included from ,/usr/local/clang/include/absl/hash/hash.h :t89r:
uIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h,: 79c:
on/usr/local/clang/include/absl/base/internal/endian.hs:t250_:i36t:e rwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
or(h  i250n | ti)n lAiBnSeL _uIiNnTtE1R6N_AtL _LCoOaMdM1A6)(;c
o      n| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
 vo/usr/local/clang/include/absl/container/internal/btree_container.hi:d509*: 47a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n509u | l l   p )   { 
        |                                     ^A
BSL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_A  T241T | R#IdBeUfTiEn_eC AaPbTsUlR_EnDo_nBnYu(ltlh i_sN)o)n,n u l l 
        |                       ^ 
                \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |    In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.h :A24B:
SIn file included from L../src/s2/s2point.h_:I24N:
TIn file included from E/usr/local/clang/include/absl/hash/hash.hR:N89A:
LIn file included from _/usr/local/clang/include/absl/hash/internal/hash.hA:T79T:
R/usr/local/clang/include/absl/base/internal/endian.hI:B254U:T27E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TURE  D254_ | BiYn(ltihnies )v)o)i d   S t o r e 1 6 ( v o i d *   a b s l _ n o n\n
u      l| l                                                   ^ 
p,/usr/local/clang/include/absl/container/internal/common.h :u31:i9n:t 1note: 6macro 'ABSL_INTERNAL_IF_true' defined here_
t v   )31  | {#
d      e| f                          ^i
ne/usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dIeFf_itnreu ea(bisfl__snaotninsuflile d_,N o.n.n.u)l li
f      _| s                     ^a
tisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 | In file included from  s2/s2measures.cc :A18B:
SIn file included from L../src/s2/s2measures.h_:I24N:
TIn file included from E../src/s2/s2point.hR:N24A:
LIn file included from _/usr/local/clang/include/absl/hash/hash.hX:(89i:
nIn file included from s/usr/local/clang/include/absl/hash/internal/hash.he:r79t:
_/usr/local/clang/include/absl/base/internal/endian.ho:r258_:a36s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
, i  n258s | eirntl_ionre_ ausisnitg3n2__hti nLto_aidm3p2l(,c o&n&s,t  cvoonisdt*  &a,b
s      l| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
onn  u584l | l   p )   { 
        |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  tnote: rexpanded from macro 'absl_nonnull'u
e,   241t | r#udee,f icnoen satb_silt_enroantnourl(lh i_nNto)n nAuBlSlL
_      I| N                     ^T
ERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INIn file included from Ts2/s2measures.ccE:R18N:
AIn file included from L../src/s2/s2measures.h_:A24T:
TIn file included from R../src/s2/s2point.hI:B24U:
TIn file included from E/usr/local/clang/include/absl/hash/hash.h_:C89A:
PIn file included from T/usr/local/clang/include/absl/hash/internal/hash.hU:R79E:
D/usr/local/clang/include/absl/base/internal/endian.h_:B262Y:(27t:h iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
))     262  |  i n l i n e   v o i d   S t o r e 3 2 (\v
o      i| d                                              ^~~~*
 absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(inseIn file included from rs2/s2measures.cct:_18o:
rIn file included from _../src/s2/s2measures.ha:s24s:
iIn file included from g../src/s2/s2point.hn:,24 :
iIn file included from n/usr/local/clang/include/absl/hash/hash.hs:e89r:
tIn file included from _/usr/local/clang/include/absl/hash/internal/hash.ho:r79_:
a/usr/local/clang/include/absl/base/internal/endian.hs:s270i:g27n:_ hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
t_i  m270p | li,n l&i&n,e  &v&o,i df aSltsoer,e
6      4| (  ^v
oi/usr/local/clang/include/absl/container/internal/btree_container.hd:*509 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onn  u509l | l   p ,   u i n t 6 4A_BtS Lv_)I N{T
E      R| N                          ^A
L_/usr/local/clang/include/absl/base/nullability.hA:T241T:R22I:B Unote: Texpanded from macro 'absl_nonnull'E
_C  A241P | T#UdReEfDi_nBeY (atbhsils_)n)o,n n u l l   _ N o n n u l l 
        |                       ^ 
      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2loop_measures.cc
:18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/s2loop_measures.h::5233::
 In file included from note: ../src/s2/s1angle.hexpanded from macro 'ABSL_INTERNAL_X':
28:
In file included from ../src/s2/s2point.h  :51127 | :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
AIn file included from B/usr/local/clang/include/absl/status/internal/status_internal.hS:L29_:
IIn file included from N/usr/local/clang/include/absl/strings/cord.hT:E94R:
NIn file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hL:_31A:
TT/usr/local/clang/include/absl/synchronization/mutex.hR:I489B:U14T:E _warning: Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
PTURE  D489_ | B Y ( t h i sv)o)i)d   ( * a b s l _ n u l l a b l e   i n v a r i a\n
t      )| (                                                   ^v
oi/usr/local/clang/include/absl/container/internal/common.hd:*32 :a9b:s note: lmacro 'ABSL_INTERNAL_IF_false' defined here_
nul   l32a | b#idleiftiyn_eu nAkBnSoLw_nI)N,T
E      R| N             ^A
L_IF_/usr/local/clang/include/absl/base/nullability.hf:a257l:s23e:( inote: fexpanded from macro 'absl_nullable'_
sat  i257s | f#ideedf,i n.e. .a)b s_l__VnAu_lAlRaGbSl_e_ 
_      N| u        ^l
lable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2lax_polygon_shape.cc::3118:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2lax_polygon_shape.h490::3613:
:In file included from  ../src/s2/s2polygon.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]34
:
In file included from ../src/s2/mutable_s2shape_index.h  :49030 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.hv:o592i:d3*:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l592l | a b iAlBiStLy__IuNnTkEnRoNwAnL _aXr(gi)n;s
e      r| t            ^_
or/usr/local/clang/include/absl/base/nullability.h_:a289s:s34i:g nnote: ,expanded from macro 'absl_nullability_unknown' 
in  s289e | r#td_eofri_naes saibgsnl__hniunltl_aibmiplli,t y&_&u,n k&n&o,w nt r_uNeu,l
l      _| u  ^n
sp/usr/local/clang/include/absl/container/internal/btree_container.he:c509i:f52i:e dnote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                                  ^
  509 |           ABSLIn file included from _s2/s2loop_measures.ccI:N18T:
EIn file included from R../src/s2/s2loop_measures.hN:A33L:
_In file included from A../src/s2/s1angle.hT:T28R:
IIn file included from B../src/s2/s2point.hU:T27E:
_In file included from C../src/s2/s2coder.hA:P23T:
UIn file included from R/usr/local/clang/include/absl/status/status.hE:D67_:
BIn file included from Y/usr/local/clang/include/absl/status/internal/status_internal.h(:t29h:
iIn file included from s/usr/local/clang/include/absl/strings/cord.h):)94,:
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 499 : 35 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      499  |      v o\i
d       | E                                                   ^n
ab/usr/local/clang/include/absl/container/internal/common.hl:e31D:e9b:u gnote: Lmacro 'ABSL_INTERNAL_IF_true' defined hereo
g(c   o31n | s#td ecfhianre*  AaBbSsLl__InNuTlElRaNbAlLe_ InFa_mter)u;e
(      i| f                                  ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i257s:f23i:e dnote: ,expanded from macro 'absl_nullable' 
..  .257) |  #idfe_fsiantei safbiseld_
n      u| l        ^l
able _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_In file included from os2/s2loop_measures.ccr:_18a:
sIn file included from s../src/s2/s2loop_measures.hi:g33n:
,In file included from  ../src/s2/s1angle.hi:n28s:
eIn file included from r../src/s2/s2point.ht:_27o:
rIn file included from _../src/s2/s2coder.ha:s23s:
iIn file included from g/usr/local/clang/include/absl/status/status.hn:_67h:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.ht:_29i:
mIn file included from p/usr/local/clang/include/absl/strings/cord.hl:,94 :
&In file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31&:
&/usr/local/clang/include/absl/synchronization/mutex.h,: 549t:r40u:e ,warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  549   | 593  |   s t a t i c   v o i d   I n c r e mternuteS,y nccohnSsetm_(iMtuetreaxt*o ra(bhsiln_tn)o nAnBuSlLl_ ImNuT,E
R      N| A                                       ^L
_C/usr/local/clang/include/absl/base/nullability.hO:M241M:A22):; 
note:       expanded from macro 'absl_nonnull'| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d509e:f47i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _509n | o n n u l l   _ N o nA572nB warninguSslL generatedl_.

I      N| T                     ^E
RNAL_ATTRIBUTE_In file included from Cs2/s2loop_measures.ccA:P18T:
UIn file included from R../src/s2/s2loop_measures.hE:D33_:
BIn file included from Y../src/s2/s1angle.h(:t28h:
iIn file included from s../src/s2/s2point.h):)27,:
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31\:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 550                                              ^~~~:
64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h  :550592 | : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                     bAaBsSeL__iInNtTeErRnNaAlL:_:APTeTrRTIhBrUeTaEd_SCyAnPcThU*R EaDb_sBlY_(ntohninsu)l)l)  w ) ; 
        |                                                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #\d
e      f| i                                                   ^n
e /usr/local/clang/include/absl/container/internal/common.ha:b31s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull    31_ | N#odnenfuilnle
       A| B                     ^S
L_INTERNAL_IF_true(iIn file included from fs2/s2loop_measures.cc_:s18a:
tIn file included from i../src/s2/s2loop_measures.hs:f33i:
eIn file included from d../src/s2/s1angle.h,: 28.:
.In file included from .../src/s2/s2point.h): 27i:
fIn file included from _../src/s2/s2coder.hs:a23t:
iIn file included from s/usr/local/clang/include/absl/status/status.hf:i67e:
dIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29        ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2lax_polygon_shape.cc:18:
  In file included from 551../src/s2/s2lax_polygon_shape.h | : 36 :
sIn file included from t../src/s2/s2polygon.ha:t34i:
cIn file included from  ../src/s2/mutable_s2shape_index.hb:o30o:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hD:e67c:
r/usr/local/clang/include/absl/container/internal/btree_container.he:m592e:n3t:S ywarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]c
hSem  (592M | u t eAxB*S La_bIsNlT_EnRoNnAnLu_lXl( imnus,e
r      t| _                                       ^o
r_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n ,note:  expanded from macro 'absl_nonnull'i
n  s241e | r#td_eofri_naes saibgsnl__hnionntn_uilmlp l_,N o&n&n,u l&l&
,       | t                     ^r
ue,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In file included from 593s2/s2loop_measures.cc | : 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from t../src/s2/s2coder.hr:u23e:
,In file included from  /usr/local/clang/include/absl/status/status.hc:o67n:
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h_:i29t:
eIn file included from r/usr/local/clang/include/absl/strings/cord.ha:t94o:
rIn file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.hh:i31n:
t/usr/local/clang/include/absl/synchronization/mutex.h): 552A:B64S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN  A552L | _ C O M M A ) ; 
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |       b a s e _ i n tAeBrSnLa_lI:N:TPEeRrNTAhLr_eAaTdTSRyInBcUhT*E _aCbAsPlT_UnRoEnDn_uBlYl( twh,i
s      )| )                                                               ^)
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                                              ^~~~n
onnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int/usr/local/clang/include/absl/container/internal/btree_container.h :f618l:a64g:s )warning: ;passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      |                                      ^
  618/usr/local/clang/include/absl/base/nullability.h | : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fXi(nter ya_besmlp_lnaocnen,u ltlr y__Neomnpnlualcle
_      i| m                     ^p
l, const &, false);
      |                                                                ^In file included from 
s2/s2loop_measures.cc:18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 596../src/s2/s2loop_measures.h::933::
 In file included from note: ../src/s2/s1angle.hmacro 'ABSL_INTERNAL_X' defined here:
28:
In file included from ../src/s2/s2point.h  :59627 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :A67B:
SIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:I29N:
TIn file included from E/usr/local/clang/include/absl/strings/cord.hR:N94A:
LIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hX:(31F:
u/usr/local/clang/include/absl/synchronization/mutex.hn:c558,: 35C:a lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
e,   K558Q | u a lb,o oKlV aLloucek,S l.o.w.W)i t h D e a d l i n e ( M u H o w   a b s l _\n
o      n| n        ^u
ll how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                     /usr/local/clang/include/absl/container/internal/btree_container.h : 618 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
ons  t618  | C o nAdBiStLi_oInN*T EaRbNsAlL__nXu(ltlrayb_leem pcloancde,,
       t| r                                             ^y
_e/usr/local/clang/include/absl/base/nullability.hm:p257l:a23c:e _note: iexpanded from macro 'absl_nullable'm
pl  ,257  | c#odnefine satb s&l,_ nfualllsaeb)l;e
       _| N  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.ha:b611l:e52
:       | note:                       ^expanded from macro 'ABSL_INTERNAL_X'

  611 |           ABSL_INTEIn file included from Rs2/s2loop_measures.ccN:A18L:
_In file included from A../src/s2/s2loop_measures.hT:T33R:
IIn file included from B../src/s2/s1angle.hU:T28:
EIn file included from _../src/s2/s2point.hC:A27P:
TIn file included from U../src/s2/s2coder.hR:E23D:
_In file included from B/usr/local/clang/include/absl/status/status.hY:(67t:
hIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hs:)29):
,In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 562 : 23 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       562  |   \ 
v      o| i                                                   ^d
 L/usr/local/clang/include/absl/container/internal/common.ho:c32k:S9l:o wnote: (macro 'ABSL_INTERNAL_IF_false' defined hereM
uHo   w32  | a#bdself_innoen nAuBlSlL _hIoNwT,E RcNoAnLs_tI FC_ofnadlistei(oinf*_ saabtsils_fniueldl,a b.l.e. )c o_n_dV,A
_      A| R                      ^G
S_/usr/local/clang/include/absl/base/nullability.h_:
241      :| 22        ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2lax_polygon_shape.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/status/status.h::3467:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/status/internal/status_internal.h::3029:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/cord.h::6794:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h619::3163:
:/usr/local/clang/include/absl/synchronization/mutex.h :warning: 562passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
58: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]619
 |     A562B | S L _vIoNiTdE RLNoAcLk_SXl(otwr(yM_ueHmopwl aacbes,l _tnroyn_neumlpll ahcoew_,i mcpoln,s tc oCnosntd i&t,i otnr*u ea)b;s
l      _| n                                                              ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.ha:b596l:e9 :c onote: nmacro 'ABSL_INTERNAL_X' defined hered
,
      |                                                            ^596
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: Aexpanded from macro 'absl_nullable'B
SL  _257I | N#TdEeRfNiAnLe_ Xa(bFsuln_cn,u lClaalblleee ,_ NKuQlulaalb,l eK
V      a| l                      ^u
e, ...)                 In file included from  s2/s2loop_measures.cc : 18 :
 In file included from \../src/s2/s2loop_measures.h
:      33| :
        ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::619257::323::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nullable'

    257619 |  | # d eAfBiSnLe_ IaNbTsElR_NnAuLl_lXa(btlrey __eNmuplllaacbel,e 
t      r| y                      ^_
emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTEIn file included from Rs2/s2loop_measures.ccN:A18L:
_In file included from A../src/s2/s2loop_measures.hT:T33R:
IIn file included from B../src/s2/s1angle.hU:T28E:
_In file included from C../src/s2/s2point.hA:P27T:
UIn file included from R../src/s2/s2coder.hE:D23_:
BIn file included from Y/usr/local/clang/include/absl/status/status.h(:t67h:
iIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.h):)29,:
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 576 : 49 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       576  | \ 
       v| o                                                   ^i
d /usr/local/clang/include/absl/container/internal/common.hT:r31y:R9e:m onote: vmacro 'ABSL_INTERNAL_IF_true' defined heree
(b   a31s | e#_dienftienren aAlB:S:LP_eIrNTThErReNaAdLS_yInFc_ht*r uaeb(silf__nsoantniuslfli esd),; 
.      .| .                                                ^)
 i/usr/local/clang/include/absl/base/nullability.hf:_241s:a22t:i snote: fexpanded from macro 'absl_nonnull'i
ed  
241       | | #        ^d
efine absl_nonnull _NoIn file included from ns2/s2lax_polygon_shape.ccn:u18l:
lIn file included from 
../src/s2/s2lax_polygon_shape.h      :| 36                     ^:

In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2/s2loop_measures.cc
:18:
In file included from ../src/s2/s2loop_measures.h:33  :
619In file included from  | ../src/s2/s1angle.h : 28A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:X67(:
tIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hy:_29e:
mIn file included from p/usr/local/clang/include/absl/strings/cord.hl:a94c:
eIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :t31r:
y/usr/local/clang/include/absl/synchronization/mutex.h_:e578m:p45l:a cwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
imp  l578, |   c ovnositd  &B,l otcrku(eb)a;s
e      _| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ter/usr/local/clang/include/absl/container/internal/btree_container.hn:a611l::47::P enote: rexpanded from macro 'ABSL_INTERNAL_X'T
hre  a611d | S y n c h *   a b s lA_BnSoLn_nIuNlTlE RsN)A;L
_      A| T                                            ^T
RI/usr/local/clang/include/absl/base/nullability.hB:U241T:E22_:C Anote: Pexpanded from macro 'absl_nonnull'T
UR  E241D | _#BdYe(ftihnies )a)b,s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
   \
      |                                               ^~~~
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_In file included from ns2/s2loop.ccu:l/usr/local/clang/include/absl/container/internal/btree_container.h18l::
a620In file included from b:../src/s2/s2loop.hl59:e:34  :
Wwarning: In file included from apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/mutable_s2shape_index.hk
:e30u:
  pIn file included from 620(/usr/local/clang/include/absl/container/btree_map.h | 
:       66 | :
                                 ^AIn file included from 
B/usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/base/nullability.hS::L73_257:
I:NIn file included from 23T/usr/local/clang/include/absl/strings/cord.h:E:R 86Nnote: :
expanded from macro 'absl_nullable'A
L/usr/local/clang/include/absl/strings/cord_analysis.h  _:257X32 | (:#t47dr:ey f_warning: eitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]mn
pel a   ca32eb | ssl,i_ znetu_rlyt_l eaGmbeplltaecE se_t_Niumilmalptaleb,dl Me&e
&m      ,o|  rf                      ^ay
UlssaeIn file included from g)s2/s2loop_measures.cce;:(
18c      :
o| In file included from n                                                          ^../src/s2/s2loop_measures.hs
:t33 /usr/local/clang/include/absl/container/internal/btree_container.h:
C:In file included from o596../src/s2/s1angle.hr::d928R::
e In file included from pnote: ../src/s2/s2point.hmacro 'ABSL_INTERNAL_X' defined here*:
 27a:
bIn file included from s  ../src/s2/s2coder.hl596:_ | 23n#:
doIn file included from enf/usr/local/clang/include/absl/status/status.hinn:eu67l :
lAIn file included from B /usr/local/clang/include/absl/status/internal/status_internal.hSr:Le_29Ip:
)NIn file included from ;T/usr/local/clang/include/absl/strings/cord.h
E:R      94N| :
                                              ^AIn file included from 
L/usr/local/clang/include/absl/strings/internal/cordz_info.h_:X31/usr/local/clang/include/absl/base/nullability.h(:
:F/usr/local/clang/include/absl/synchronization/mutex.h241u:n:581c22:,:38  :Cnote:  expanded from macro 'absl_nonnull'awarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
  l241e   | e581,# |  d eK fQ iu na el  ,b aabKssVela_l_uienno,t ne.nr.u.nla)l l  :_ : NP oen r nT uh lr le
 a       d | S                     ^ y
 n c h *   a b s\l
_      n| o        ^n
nuIn file included from ls2/s2loop.ccl: 18w:
)In file included from ;../src/s2/s2loop.h
:      34| :
                                     ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2266::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'absl_nonnull'73
:
In file included from /usr/local/clang/include/absl/strings/cord.h  :24186 | :
#/usr/local/clang/include/absl/strings/cord_analysis.hd:e50f:i49n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n   o50n | nsuilzle __tN oGnentuMlolr
e      P| r                     ^e
ciseMemoryUsage(const CordRep* absl_In file included from ns2/s2loop_measures.cco:n18n:
uIn file included from l../src/s2/s2loop_measures.hl/usr/local/clang/include/absl/container/internal/btree_container.h: :33r620:
e:In file included from p3../src/s2/s1angle.h)::; 28
warning: :
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from | 
../src/s2/s2point.h                                                ^:
27  :
620/usr/local/clang/include/absl/base/nullability.hIn file included from  | :../src/s2/s2coder.h 241: :23A22B:
:SIn file included from L _note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull'I:
N67T  :
E241In file included from R | /usr/local/clang/include/absl/status/internal/status_internal.hN#A:dL29e_:
fXIn file included from (it/usr/local/clang/include/absl/strings/cord.hnr:ey94 _:
aeIn file included from bm/usr/local/clang/include/absl/strings/internal/cordz_info.hsp:ll31_a:
n/usr/local/clang/include/absl/synchronization/mutex.hco:en,585n :ut20lr:yl_  e_warning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]pN
loan  nc585ue | _l ilm p
vl      o,| i                      ^&d
 &T,r afnasl(sMeu)H;In file included from o
s2/s2loop.ccw      : | 18a  ^:
b
In file included from s../src/s2/s2loop.h/usr/local/clang/include/absl/container/internal/btree_container.hl::_34n611:
o:In file included from n52../src/s2/mutable_s2shape_index.hn::u 30lnote: :
expanded from macro 'ABSL_INTERNAL_X'lIn file included from  
/usr/local/clang/include/absl/container/btree_map.hh:o66w  :
)611In file included from ; | /usr/local/clang/include/absl/container/internal/btree.h  :  73/ :
/ In file included from   /usr/local/clang/include/absl/strings/cord.hu :s 86e :
d /usr/local/clang/include/absl/strings/cord_analysis.h  :fA56oB:rS56 L:C_ oIwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Nd
TVEaR   rN56-A | >sLMiu_ztAee_TxtT  tRGreIatBnEsUsftTeirEm_
aC      tA| e                   ^Pd
FTaU/usr/local/clang/include/absl/base/nullability.hiR:rE241SD:_h22aB:rY e(note: Mexpanded from macro 'absl_nonnull'te
hmi  os241r) | y#)Uds,eaf gie n(ec  o an bss tl  _ C noo rnd nR ue lpl *   _ aN bo sn ln_u nlo ln
 n      u | l                     ^ l
  r e\p
)      ;| 
                                                   ^      
|                                                        ^/usr/local/clang/include/absl/container/internal/common.h
:In file included from 32/usr/local/clang/include/absl/base/nullability.hs2/s2loop_measures.cc:::924118:::
 22In file included from note: :../src/s2/s2loop_measures.hmacro 'ABSL_INTERNAL_IF_false' defined here :
note: 33expanded from macro 'absl_nonnull':
   
In file included from 32../src/s2/s1angle.h   | :#24128d | :
e#In file included from fdi../src/s2/s2point.hen:fe27 i:
AnIn file included from Be../src/s2/s2coder.hS :La23_b:
IsIn file included from Nl/usr/local/clang/include/absl/status/status.h_T:nE67oR:
nNIn file included from An/usr/local/clang/include/absl/status/internal/status_internal.hLu:_lI29lF:
 _In file included from f_/usr/local/clang/include/absl/strings/cord.haN:ol94sn:
enIn file included from (u/usr/local/clang/include/absl/strings/internal/cordz_info.hil:lf31
_:
s/usr/local/clang/include/absl/synchronization/mutex.h      a:| t586                     ^i:
s43f:i ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 ..  .586) |   _ _vVoAi_dA RFGeSr_(_b
a      s| e        ^_
internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2lax_polygon_shape.cce: 18a:
bIn file included from s../src/s2/s2lax_polygon_shape.hl:_36n:
oIn file included from n../src/s2/s2polygon.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.h_:N30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:

      /usr/local/clang/include/absl/container/internal/btree_container.h| :                     ^621
:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_In file included from Is2/s2loop_measures.ccN:T18E:
RIn file included from N../src/s2/s2loop_measures.hA:L33_:
XIn file included from (../src/s2/s1angle.ht:r28y:
_In file included from e../src/s2/s2point.hm:p27l:
aIn file included from c../src/s2/s2coder.he:,23 :
tIn file included from r/usr/local/clang/include/absl/status/status.hy:_67e:
mIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.hl:a29c:
eIn file included from _/usr/local/clang/include/absl/strings/cord.hi:m94p:
lIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :&31&:
,/usr/local/clang/include/absl/synchronization/mutex.h :t590r:u40e:) ;warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                                          ^
  /usr/local/clang/include/absl/container/internal/btree_container.h590: | 596 : 9e:x pnote: lmacro 'ABSL_INTERNAL_X' defined herei
cit   596M | u#tdeexf(icnoen sAtB SvLo_lIaNtTiElReN AMLu_tXe(xF*u nacb,s lC_anlullelea,b lKeQ u/a*li,g nKoVraeldu*e/,)  .{.}.
)       |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f\i
n      e|          ^a
bsl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       In file included from _s2/s2loop_measures.cc_:a18t:
tIn file included from r../src/s2/s2loop_measures.hi:b33u:
tIn file included from e../src/s2/s1angle.h_:_28(:
(In file included from e../src/s2/s2point.hn:a27b:
lIn file included from e../src/s2/s2coder.h_:i23f:
(In file included from n/usr/local/clang/include/absl/status/status.h :=67=:
 In file included from 0/usr/local/clang/include/absl/status/internal/status_internal.h,: 29":
OIn file included from n/usr/local/clang/include/absl/strings/cord.hl:y94 :
lIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.ht:e31r:
a/usr/local/clang/include/absl/synchronization/mutex.hl: 624/usr/local/clang/include/absl/container/internal/btree_container.h`::068622`: : i3warning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]: 
a lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  o
624w | e d   .e622"x | ) p) lAiB)cS iL{t_} I
NM      Tu| Et                     ^Re
NxALLo_cXk((tMruyt_eexm&p lmauc eA,B StLr_yI_NeTmEpRlNaAcLe__AhTiTnRtI_BiUmTpEl_,C AcPoTnUsRtE D&_,B Yf(atlhsies,)
)      
|         ^| 
                                                                   ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CA/usr/local/clang/include/absl/synchronization/mutex.hP:T635U:R29E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(thi  s635) | ) ,  e x p l i c i t   M u t e x L o c k ( M u t e x *  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n32u:l9l:  mnote: umacro 'ABSL_INTERNAL_IF_false' defined here)
 AB   S32L | _#EdXeCfLiUnSeI VAEB_SLLO_CIKN_TFEURNNCATLI_OINF(_mfua)l
s      e| (                            ^i
f_s/usr/local/clang/include/absl/base/nullability.ha:t241i:s22f:i enote: dexpanded from macro 'absl_nonnull',
 .  .241. | )# d_e_fViAn_eA RaGbSs_l__
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
In file included from       s2/s2lax_polygon_shape.cc| :                                                                   ^~~~18
:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   A/usr/local/clang/include/absl/synchronization/mutex.hB:S649L:_29I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_  X649( | t r ye_xepmlpilcaicte ,M uttreyx_Leomcpkl(aMcuet_ehxi*n ta_bismlp_ln,o ncnounlslt  m&u,,  tcrounes,t
       C| o  ^n
di/usr/local/clang/include/absl/container/internal/btree_container.ht:i611o:n52&:  cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
d)
        611|  |                             ^ 
     /usr/local/clang/include/absl/base/nullability.h : 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
INTER  N241A | L#_dAeTfTiRnIeB UaTbEs_lC_AnPoTnUnRuElDl_ B_YN(otnhniusl)l)
,       |                       ^ 
                       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNIn file included from As2/s2loop_measures.ccL:_18C:
OIn file included from M../src/s2/s2loop_measures.hM:A33):
;In file included from 
../src/s2/s1angle.h      :| 28                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 611../src/s2/s2coder.h::4723::
 In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'ABSL_INTERNAL_X':
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :61129 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
AB/usr/local/clang/include/absl/synchronization/mutex.hS:L670_:I74N:T Ewarning: R'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
AL_ATT  R670I | B U TeEx_pClAiPcTiUtR ERDe_aBdYe(rtMhuitse)x)L,o c k ( M u t e x &   m u   A B S L _ I N T E R N A L\_
A      T| T                                              ^~~~R
IBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSIn file included from Ls2/s2loop_measures.cc_:I18N:
TIn file included from E../src/s2/s2loop_measures.hR:N33A:
LIn file included from _../src/s2/s1angle.hX:(28t:
rIn file included from y../src/s2/s2point.h_:e27m:
pIn file included from l../src/s2/s2coder.ha:c23e:
,In file included from  /usr/local/clang/include/absl/status/status.ht:r67y:
_In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
aIn file included from c/usr/local/clang/include/absl/strings/cord.he:_94h:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ht:_31i:
m/usr/local/clang/include/absl/synchronization/mutex.hp:l681,: 74&:& ,warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
alse,  
681       | |    ^ 
ex/usr/local/clang/include/absl/container/internal/btree_container.hp:l611i:c52i:t  note: Rexpanded from macro 'ABSL_INTERNAL_X'e
ade  r611M | u t e x L o c k ( M uAtBeSxL&_ ImNuT EARBNSALL__IANTTTERRINBAULT_EA_TCTARPITBUURTEED__CBAYP(TtUhRiEsD)_)B,Y ( t h i s ), 
        |                                                                           ^~~~ 
               \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #de/usr/local/clang/include/absl/synchronization/mutex.hf:i689n:e35 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_INT  E689R | N A Le_xIpFl_ifcailts eR(eiafd_esraMtuitsefxiLeodc,k (.M.u.t)e x_*_ VaAb_sAlR_GnSo_n_n
u      l| l        ^ 
mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTIn file included from Us2/s2loop_measures.ccR:E18D:
_In file included from B../src/s2/s2loop_measures.hY:(33t:
hIn file included from i../src/s2/s1angle.hs:)28):
,In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h\:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                                   ^:
710:74/usr/local/clang/include/absl/container/internal/common.h:: 31:warning: 9'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
     71031 |  |  # deexfpilniec AiBtS LW_rIiNtTeErRMNuAtLe_xILFo_ctkr(uMeu(tiefx_&s amtui sAfBiSeLd_,I N.T.E.R)N AiLf__AsTaTtRiIsBfUiTeEd_
C      A| P        ^T
URED_BY(this))
      |                                                                          ^~~~
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |  /usr/local/clang/include/absl/synchronization/mutex.h :A718B:S35L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN  A718L | _ X (etxrpyl_iecmiptl aWcrei,t etrrMyu_teemxpLloaccke(_Mhuitnetx_*i mapbls,l _&n&o,n nturlule ,m
u      )| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                                   ^
  /usr/local/clang/include/absl/base/nullability.h629: | 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n ec oanbsstl__intoenrnautlolr (_hNionntn)u lAlB
S      L| _                     ^I
NTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |  In file included from  s2/s2loop_measures.cc : 18 :
 In file included from  ../src/s2/s2loop_measures.h : 33 :
AIn file included from B../src/s2/s1angle.hS:L28_:
IIn file included from N../src/s2/s2point.hT:E27R:
NIn file included from A../src/s2/s2coder.hL:_23A:
TIn file included from T/usr/local/clang/include/absl/status/status.hR:I67B:
UIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hE:_29C:
AIn file included from P/usr/local/clang/include/absl/strings/cord.hT:U94R:
EIn file included from D/usr/local/clang/include/absl/strings/internal/cordz_info.h_:B31Y:
(/usr/local/clang/include/absl/synchronization/mutex.ht:h722i:s74):) ,warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        722  |      e x p l i c i t   W r i t e r\M
u      t| e                                              ^~~~x
Lock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2min_distance_targets.cc -o s2/s2min_distance_targets.o
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_648n:7o:n nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
l fu  n648c | ) ( v o i d *t haibss)l)_ nAuBlSlLa_bAiTlTiRtIyB_UuTnEk_nLoIwFnE)T,I
M      E| _                   ^B
OU/usr/local/clang/include/absl/base/nullability.hN:D241 :{22
:       | note:       ^~~~expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2lax_polygon_shape.cco:n18n:
uIn file included from l../src/s2/s2lax_polygon_shape.hl: 36_:
NIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      33| :
                     ^In file included from 
../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2loop_measures.cc163: | 18 :
 In file included from b../src/s2/s2loop_measures.ho:o33l:
 In file included from P../src/s2/s1angle.ha:r28s:
eIn file included from F../src/s2/s2point.hr:o27m:
(In file included from a../src/s2/s2coder.hb:s23l:
:In file included from :/usr/local/clang/include/absl/status/status.hs:t67r:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hg:_29v:
iIn file included from e/usr/local/clang/include/absl/strings/cord.hw: 94v:
aIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hu:e31,:
 /usr/local/clang/include/absl/synchronization/mutex.hs:t979d::43::s twarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ng*   a979b | s l _sntoantniucl lb oeorlr oArl)w;a
y      s| T                                                       ^r
ue(/usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  Cnote: oexpanded from macro 'absl_nonnull'n
di  t241i | o#nd*e faibnsel _anbuslll_anbolnen)u l{l  r_eNtounrnnu ltlr
u      e| ;                     ^ 
}
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2loop_measures.ccl:
18      :
| In file included from                      ^../src/s2/s2loop_measures.h
:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2lax_polygon_shape.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2lax_polygon_shape.h:
:In file included from 36/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2polygon.h:
:In file included from 34/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/mutable_s2shape_index.h:
:In file included from 33/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/base/commandlineflags.h:
:21/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1146/usr/local/clang/include/absl/flags/flag.h::742::
 In file included from warning: /usr/local/clang/include/absl/flags/internal/flag.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
30:
/usr/local/clang/include/absl/base/call_once.h:53: 221146: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      t53h | i s ) )  aAbBsSlL:_:EoXnCcLeU_SfIlVaEg_*L OaCbKs_lF_UnNoCnTnIuOlNl( mful)a
g      )| ;      ^~~~

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull /usr/local/clang/include/absl/synchronization/mutex.h_:N1153o:n39n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2lax_polygon_shape.cc
:      18| :
                     ^In file included from 
../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   frIn file included from is2/s2loop_measures.cce:n18d:
 In file included from s../src/s2/s2loop_measures.ht:d33::
:In file included from a../src/s2/s1angle.ht:o28m:
iIn file included from c../src/s2/s2point.h<:u27i:
nIn file included from t../src/s2/s2coder.h3:223_:
tIn file included from >/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hb:a31s:
e/usr/local/clang/include/absl/synchronization/mutex.h_:i1158n:t53e:r nwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
::Co n1158t | r o l W o r dM(u
t      e| x                                ^&
 m/usr/local/clang/include/absl/base/nullability.hu: 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eAfTiTnReI BaUbTsEl__CnAoPnTnUuRlElD __BNYo(ntnhuilsl)
,      
|                            ^| 
                                                    ^~~~
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:1166:   3997: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   o n1166c | e _ felxapgl*i caibts lR_enloenansualbll efMluatge)x;L
o      c| k                 ^(
Mu/usr/local/clang/include/absl/base/nullability.ht:e241x:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf imnue,  acbosnls_tn oCnonnudlilt i_oNno&n ncuolnld
)      
|                            ^| 
                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2lax_polygon_shape.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2lax_polygon_shape.h:
:In file included from 36/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2polygon.h:
:In file included from 34/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/mutable_s2shape_index.h:
:/usr/local/clang/include/absl/synchronization/mutex.h33::
1179In file included from :../src/s2/base/commandlineflags.h10::21 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/flags/flag.h
:42:
In file included from  /usr/local/clang/include/absl/flags/internal/flag.h1179: | 30 :
 /usr/local/clang/include/absl/base/call_once.hM:u111t:e40x:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  u111l | lvaobilde  Lmouw_L;e
v      e| l         ^C
al/usr/local/clang/include/absl/base/nullability.hl:O257n:c23e:( anote: bexpanded from macro 'absl_nullable's
l:  :257o | n#cdee_ffilnaeg *a basbls_ln_unlolnanbullel  _fNlualgl,a bClael
l      a| b                      ^l
e&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polygon_shape.cc:18:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uintIn file included from 3s2/s2loop_measures.cc2:_18t:
>In file included from *../src/s2/s2loop_measures.h :a33b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from c../src/s2/s2coder.ho:n23t:
rIn file included from o/usr/local/clang/include/absl/status/status.hl:,67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                                        ^:
29:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/synchronization/mutex.h:  1212241: | 52#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a b1212s | lb_onooln nCuolnld i_tNioonnn:u:lCla
s      t| A                     ^n
dCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unIn file included from ks2/s2lax_polygon_shape.ccn:o18w:
nIn file included from )../src/s2/s2lax_polygon_shape.h,:
36      :
| In file included from            ^../src/s2/s2polygon.h
:34:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/mutable_s2shape_index.h241::3322:
:In file included from  ../src/s2/base/commandlineflags.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from   /usr/local/clang/include/absl/flags/flag.h241: | 42#:
dIn file included from e/usr/local/clang/include/absl/flags/internal/flag.hf:i30n:
e/usr/local/clang/include/absl/base/call_once.h :a194b:s31l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l194  | _iNnolninnuel ls
t      d| :                     ^:
atomicIn file included from <s2/s2loop_measures.ccu:i18n:
tIn file included from 3../src/s2/s2loop_measures.h2:_33t:
>In file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from C/usr/local/clang/include/absl/status/status.ho:n67t:
rIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hl:W29o:
rIn file included from d/usr/local/clang/include/absl/strings/cord.h(:
94      :
| In file included from                               ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::2411230::2234::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

  241 |  #1230d | e f i n eb oaobls l(_*naobnsnlu_lnlo n_nNuolnln ufluln
c      )| (                     ^T
* absl_nulIn file included from ls2/s2lax_polygon_shape.cca:b18i:
lIn file included from i../src/s2/s2lax_polygon_shape.ht:y36_:
uIn file included from n../src/s2/s2polygon.hk:n34o:
wIn file included from n../src/s2/mutable_s2shape_index.h):,33
:
      In file included from | ../src/s2/base/commandlineflags.h                                 ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/flags/flag.h::28942::
34In file included from :/usr/local/clang/include/absl/flags/internal/flag.h :note: 30expanded from macro 'absl_nullability_unknown':

/usr/local/clang/include/absl/base/call_once.h:195:  16289: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fi  n195e |   a b s lo_nncuel_lfalbaigl*i tayb_suln_knnoonwnnu l_lN ufllla_gu)n s{p
e      c| i               ^f
ie/usr/local/clang/include/absl/base/nullability.hd:
241      :| 22                                 ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2loop_measures.ccb:s18l:
_In file included from n../src/s2/s2loop_measures.ho:n33n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 289s2/s2lax_polygon_shape.cc::3418::
 In file included from ../src/s2/s2lax_polygon_shape.hnote: :expanded from macro 'absl_nullability_unknown'36
:
In file included from ../src/s2/s2polygon.h  :28934 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f33i:
nIn file included from e../src/s2/base/commandlineflags.h :a21b:
sIn file included from l/usr/local/clang/include/absl/flags/flag.h_:n42u:
lIn file included from l/usr/local/clang/include/absl/flags/internal/flag.ha:b30i:
l/usr/local/clang/include/absl/base/call_once.hi:t200y:_40u:n kwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn _  N200u | lvlo_iudn sLpoewcLiefvieeldC
a      l| l                                 ^O
nce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2loop_measures.cc_:N18o:
nIn file included from n../src/s2/s2loop_measures.hu:l33l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from In file included from s2/s2loop_measures.cc../src/s2/mutable_s2shape_index.h::1830:
:
In file included from In file included from ../src/s2/s2loop_measures.h/usr/local/clang/include/absl/container/btree_map.h::3366:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/btree.h::2873:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::2794:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2331:
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/synchronization/mutex.h::67489:
:In file included from 14/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
795:43:   warning: 489type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      v  o795i | d   (f*raibesnld_ nvuolilda bAlbes liFnovramraitaFnltu)s(hv(oaibds*l :a:bCsolr_dn*u lalbasbli_lniotnyn_uulnlk ncoowrnd),,

            | |                                           ^             ^

/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22257:: 23:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nullable'
  241 |   #257dIn file included from  | es2/s2lax_polygon_shape.cc#f:die18nfe:
i In file included from na../src/s2/s2lax_polygon_shape.heb: sal36b_:
snIn file included from lo../src/s2/s2polygon.h_n:nnu34ulll:
la In file included from b_../src/s2/mutable_s2shape_index.hlN:eo33 nn:
_uNIn file included from lul../src/s2/base/commandlineflags.hl
:l      a21| b:
                     ^l
e/usr/local/clang/include/absl/flags/flag.h
:      110| :                      ^29
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2loop.cc:18:
  In file included from 110../src/s2/s2loop.h | :v34o:
iIn file included from d../src/s2/mutable_s2shape_index.h :S30e:
tIn file included from F/usr/local/clang/include/absl/container/btree_map.hl:a66g:
(In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s73l:
:In file included from :/usr/local/clang/include/absl/strings/cord.hF:l94a:
gIn file included from </usr/local/clang/include/absl/strings/internal/cordz_info.hT:>31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b489s:l45_:n owarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
ull   489f | l a g ,   c ovnositd  T(&* avb)s l{_
n      u| l                            ^l
able/usr/local/clang/include/absl/base/nullability.h :i241n:v22a:r inote: aexpanded from macro 'absl_nonnull'n
t)  (241v | o#idde*f ianbes la_bnsull_lnaobninluiltly __uNnoknnnouwlnl)
,      
|                            ^| 
                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unsIn file included from ps2/s2lax_polygon_shape.cce:c18i:
fIn file included from i../src/s2/s2lax_polygon_shape.he:d36
:
      In file included from | ../src/s2/s2polygon.h                                 ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from In file included from ../src/s2/base/commandlineflags.hs2/s2loop_measures.cc::2118:
:
/usr/local/clang/include/absl/flags/flag.hIn file included from :In file included from ../src/s2/s2loop_measures.h118s2/s2loop.cc:::332918:
::
In file included from  In file included from ../src/s2/s1angle.hwarning: ../src/s2/s2loop.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
2834:
:
In file included from In file included from   ../src/s2/s2point.h../src/s2/mutable_s2shape_index.h118:: | 2730v:
o:
In file included from iIn file included from ../src/s2/s2coder.hd/usr/local/clang/include/absl/container/btree_map.h: :23S66e:
:
tIn file included from In file included from F/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/btree.hl:a:g6773(:
:
aIn file included from In file included from b/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/cord.hs::l2994::
:
/usr/local/clang/include/absl/strings/cord.h:In file included from :F/usr/local/clang/include/absl/strings/internal/cordz_info.hl898:a:31g27:
<:/usr/local/clang/include/absl/synchronization/mutex.hT :>warning: 490*type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]: 
a13b:s  l 898_warning: n | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o n
 nfu  rl490il |  e nf d l  acg ,o  ncvsootni sdC*to  raVdb&zs Ivln)_fn ou{*
l l      aab| bsi                            ^ll_
intu/usr/local/clang/include/absl/base/nullability.hyl_:lu241anb:kln22eo :wG nenote:  expanded from macro 'absl_nonnull'taC
rog  r)d241;z | 
I#      nd| f            ^eo
fFi/usr/local/clang/include/absl/base/nullability.hon:re289 T:ae34bss:tl _note: nioexpanded from macro 'absl_nullability_unknown'nn
ngu  (l289
l |        #_| dN                          ^eo
fnin/usr/local/clang/include/absl/base/nullability.hnu:el257 l:
a23      b:s|                       ^lnote: _expanded from macro 'absl_nullable'
n
ull  a257b | i#ldietfyi_nuen kanboswln_ n_uNlullalb_luen s_pNeuclilfaibelde

            | |                                  ^                      ^

In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2loop.cc:18:
In file included from   ../src/s2/s2loop.h927: | 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 549 : 40 :  Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
dRe  p549* |   a bsstla_tniucl lvaobilde  Irnecpr)e;m
e      n| t                                          ^S
ync/usr/local/clang/include/absl/base/nullability.hh:S257e:m23(:M unote: texpanded from macro 'absl_nullable'e
x*   257a | b#sdle_fnionnen ualbls lm_un,u
l      l| a                                       ^b
le/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        241|  |                       ^#
define absl_nonnull _NIn file included from os2/s2loop_measures.ccn:n18u:
lIn file included from l../src/s2/s2loop_measures.h
:      33| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2loop.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h18::
29In file included from :
../src/s2/s2loop.h:/usr/local/clang/include/absl/strings/cord.h34::
929In file included from :../src/s2/mutable_s2shape_index.h26::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:  73929:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
vIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hi:d31 :
S/usr/local/clang/include/absl/synchronization/mutex.hw:a550p:(64I:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
eRep  *550  | a b s l _ n o n n u l l   r h s ) ; 
        |                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'b
as  e241_ | i#ndteefrinnael :a:bPselr_TnhornenaudlSly n_cNho*n naublsll
_      n| o                     ^n
null w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2loop_measures.cci:n18e:
 In file included from a../src/s2/s2loop_measures.hb:s33l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     cIn file included from os2/s2loop.ccn:s18t:
 In file included from c../src/s2/s2loop.hh:a34r:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from a/usr/local/clang/include/absl/container/internal/btree.hb:l73e:
 In file included from d/usr/local/clang/include/absl/strings/cord.ha:t94a:
(In file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t551;:
40      :|                  ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:  23551: |   note:  expanded from macro 'absl_nullable's
ta  t257i | c# dbeofoiln eD eacbrselm_ennutlSlyanbclheS e_mN(uMlultaebxl*e 
a      b| s                      ^l
_nonnull mu,
      | In file included from                                        ^s2/s2loop_measures.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2loop_measures.h241::3322:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h:  27241:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
o/usr/local/clang/include/absl/strings/cord.hn:934n:u31l:l  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
onn  u934l | l 
        |                       ^v
oid set_dIn file included from as2/s2loop.cct:a18(:
cIn file included from o../src/s2/s2loop.hn:s34t:
 In file included from c../src/s2/mutable_s2shape_index.hh:a30r:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:u73l:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hb:l94e:
 In file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.ha:t31a:
,/usr/local/clang/include/absl/synchronization/mutex.h :s552i:z64e:_ twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
);
        | 552                              ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l lbaabslee_ i_nNtuelrlnaabll:e:
P      e| r                      ^T
hreadSynch* absl_noIn file included from ns2/s2loop_measures.ccn:u18l:
lIn file included from  ../src/s2/s2loop_measures.hw:,33
:
      In file included from | ../src/s2/s1angle.h                                                               ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n935e: 11a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u935l | l   _ N ocnhnaurl*l 
a      b| s                     ^l
_nonnull set_data(size_t n)In file included from ;s2/s2loop.cc : 18/:
/In file included from  ../src/s2/s2loop.hW:r34i:
tIn file included from e../src/s2/mutable_s2shape_index.h :d30a:
tIn file included from a/usr/local/clang/include/absl/container/btree_map.h :t66o:
 In file included from t/usr/local/clang/include/absl/container/internal/btree.hh:e73 :
rIn file included from e/usr/local/clang/include/absl/strings/cord.hs:u94l:
tIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31          ^:

/usr/local/clang/include/absl/synchronization/mutex.h:556/usr/local/clang/include/absl/base/nullability.h::38241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241556 |  | # d evfoiinde  LaobcsklS_lnoownLnouolpl( S_yNnocnhnWualilt
P      a| r                     ^a
ms* absl_nonnull waitp, int In file included from fs2/s2loop_measures.ccl:a18g:
sIn file included from )../src/s2/s2loop_measures.h;:
33      :
| In file included from                                      ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h:  67241:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
i/usr/local/clang/include/absl/strings/cord.hn:e937 :a35b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u937l | l   _ N oanbnsull:l:
c      o| r                     ^d
_internal::CordRep* abslIn file included from _s2/s2loop.ccn:u18l:
lIn file included from a../src/s2/s2loop.hb:l34e:
 In file included from t../src/s2/mutable_s2shape_index.hr:e30e:
(In file included from )/usr/local/clang/include/absl/container/btree_map.h :c66o:
nIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht:;73
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                                  ^:
94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::25731::
23:/usr/local/clang/include/absl/synchronization/mutex.h :558note: :expanded from macro 'absl_nullable'35
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de  f558i | n e  baobosll _LnouclklSalbolweW i_tNhuDlelaadbllien
e      (| M                      ^u
How absl_nonnull In file included from hs2/s2loop_measures.cco:w18,:

In file included from       ../src/s2/s2loop_measures.h| :                                  ^33
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 /usr/local/clang/include/absl/strings/cord.ha:b938s:l35_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   938_ | N o n n ualbls
l      :| :                     ^c
ord_internaIn file included from ls2/s2loop.cc:::18C:
oIn file included from r../src/s2/s2loop.hd:R34e:
pIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l73l:
 In file included from a/usr/local/clang/include/absl/strings/cord.hs:_94t:
rIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.he:(31):
 /usr/local/clang/include/absl/synchronization/mutex.hc:o559n:s46t:; 
warning:       type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 
                                  ^
  /usr/local/clang/include/absl/base/nullability.h559: | 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n ncuolnls t_ NCoonnnduiltli
o      n| *                     ^ 
absl_nullable coIn file included from ns2/s2loop_measures.ccd:,18
:
      In file included from | ../src/s2/s2loop_measures.h                                             ^:
33:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::25728::
23In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2coder.h:23  :
257In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s939l:_17n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   939_ | N u l l acbolnes
t       | c                      ^h
ar* absl_nonnull as_charIn file included from ss2/s2loop.cc(:)18 :
cIn file included from o../src/s2/s2loop.hn:s34t:
;In file included from 
../src/s2/mutable_s2shape_index.h      :| 30                ^:

In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/base/nullability.h66::
241In file included from :/usr/local/clang/include/absl/container/internal/btree.h22::73 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f562i:n23e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n562n | u l lv o_iNdo nLnouclklS
l      o| w                     ^(
MuHow absl_nonnuIn file included from ls2/s2loop_measures.ccl: 18h:
oIn file included from w../src/s2/s2loop_measures.h,: 33c:
oIn file included from n../src/s2/s1angle.hs:t28 :
CIn file included from o../src/s2/s2point.hn:d27i:
tIn file included from i../src/s2/s2coder.ho:n23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
a/usr/local/clang/include/absl/strings/cord.hb:l941e: 35c:o nwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],

      |                       ^  
941 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22a:b snote: lexpanded from macro 'absl_nonnull':
:c  o241r | d#_dienftienren aalb:s:lC_onrodnRneupl*l  a_bNsoln_nnuullll
a      b| l                     ^e
 clear()In file included from ;s2/s2loop.cc
:      18| :
                                  ^In file included from 
../src/s2/s2loop.h:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/mutable_s2shape_index.h::2330::
 In file included from /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'absl_nullable'66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h  :25773 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_562n:u58l:l awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
e _N  u562l | l a bvloei
d       | L                      ^o
ckSlow(MuHow absl_nonnull how, const Condition* abIn file included from ss2/s2loop_measures.ccl:_18n:
uIn file included from l../src/s2/s2loop_measures.hl:a33b:
lIn file included from e../src/s2/s1angle.h :c28o:
nIn file included from d../src/s2/s2point.h,:
27      :
| In file included from                                                          ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h257::6723:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nullable':

/usr/local/clang/include/absl/strings/cord.h:  950257: | 18#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a  b950s | l _ n u lCloarbdlRee p_FNlualtl*a balbes
l      _| n                      ^o
nnull MakeFlatWithExtraCaIn file included from ps2/s2loop.cca:c18i:
tIn file included from y../src/s2/s2loop.h(:s34i:
zIn file included from e../src/s2/mutable_s2shape_index.h_:t30 :
eIn file included from x/usr/local/clang/include/absl/container/btree_map.ht:r66a:
)In file included from ;/usr/local/clang/include/absl/container/internal/btree.h
:      73| :
                 ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'565
:36:   241 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin  e565  | a b svlo_indo nUnnullolc k_SNloonwn(uSlyln
c      h| W                     ^a
itParams* absl_nullable In file included from ws2/s2loop_measures.cca:i18t:
pIn file included from )../src/s2/s2loop_measures.h :A33B:
SIn file included from L../src/s2/s1angle.h_:A28T:
TIn file included from R../src/s2/s2point.hI:B27U:
TIn file included from E../src/s2/s2coder.h_:C23O:
LIn file included from D/usr/local/clang/include/absl/status/status.h;:
67      :
| In file included from                                    ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.h257::95723::27 : note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  257 |   #957d | e f i n ev oaibds lS_entuTlrleaeb(lCeo r_dNRuelpl*a balbes
l      _| n                      ^o
nnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2loop.cci:n18e:
 In file included from a../src/s2/s2loop.hb:s34l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 66_:
NIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n73u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TrIn file included from ys2/s2loop_measures.ccR:e18m:
oIn file included from v../src/s2/s2loop_measures.he:(33b:
aIn file included from s../src/s2/s1angle.he:_28i:
nIn file included from t../src/s2/s2point.he:r27n:
aIn file included from l../src/s2/s2coder.h:::23P:
eIn file included from r/usr/local/clang/include/absl/status/status.hT:h67r:
eIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hd:S29y:
n/usr/local/clang/include/absl/strings/cord.hc:h961*: 34a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n961u | l l   s )v;o
i      d|                                                  ^S
et/usr/local/clang/include/absl/base/nullability.hT:r241e:e22O:r Enote: mexpanded from macro 'absl_nonnull'p
ty  (241C | o#rddeRfeipn*e  aabbssll__nnuolnlnaubllle  _rNeopn,n
u      l| l                                 ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2loop.cca:b18s:
lIn file included from _../src/s2/s2loop.hn:u34l:
lIn file included from a../src/s2/mutable_s2shape_index.hb:l30e:
 In file included from _/usr/local/clang/include/absl/container/btree_map.hN:u66l:
lIn file included from a/usr/local/clang/include/absl/container/internal/btree.hb:l73e:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                      ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |  In file included from  s2/s2loop_measures.ccv:o18i:
dIn file included from  ../src/s2/s2loop_measures.hB:l33o:
cIn file included from k../src/s2/s1angle.h(:b28a:
sIn file included from e../src/s2/s2point.h_:i27n:
tIn file included from e../src/s2/s2coder.hr:n23a:
lIn file included from :/usr/local/clang/include/absl/status/status.h::P67e:
rIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hh:r29e:
a/usr/local/clang/include/absl/strings/cord.hd:S968y:n31c:h *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n968o | n n u l lv osi)d; 
E      m| p                                            ^l
ac/usr/local/clang/include/absl/base/nullability.he:T241r:e22e:( Cnote: oexpanded from macro 'absl_nonnull'r
dR  e241p | *# daebfsiln_en oanbnsull_ln ornenpu,l lM e_tNhoondnIudleln
t      i| f                     ^i
er method);
      |                               ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2loop.cc::24118::
22In file included from :../src/s2/s2loop.h :34note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/mutable_s2shape_index.h:  30241:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e66f:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.he: 73a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_580N:o34n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l

      |                      ^  
580 |   base_internal::PIn file included from es2/s2loop_measures.ccr:T18h:
rIn file included from e../src/s2/s2loop_measures.ha:d33S:
yIn file included from n../src/s2/s1angle.hc:h28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
WIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hk:e29u:
p/usr/local/clang/include/absl/strings/cord.h(:
972      :| 31                                 ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
257:23:   972note:  | expanded from macro 'absl_nullable' 
     257v | o#idde fEimnpel aacbesTlr_eneu(lCloarbdlRee p_*N ualblsalb_lneo
n      n| u                      ^l
l rep,In file included from  s2/s2loop.ccc:o18n:
sIn file included from t../src/s2/s2loop.h :I34n:
lIn file included from i../src/s2/mutable_s2shape_index.hn:e30D:
aIn file included from t/usr/local/clang/include/absl/container/btree_map.ha:&66 :
pIn file included from a/usr/local/clang/include/absl/container/internal/btree.hr:e73n:
tIn file included from ,/usr/local/clang/include/absl/strings/cord.h
:      94| :
                              ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/synchronization/mutex.h241::58122::38 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241   | 581# | d e f i n e  baabssel__innotnenrunlall :_:NPoenrnTuhlrle
a      d| S                     ^y
nch* absl_nonnull w);
In file included from       s2/s2loop_measures.cc| :                                     ^18
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2loop_measures.h::24133::
22In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n978n:u36l:l  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
onn  u978l | l 
        |                       ^v
oid CommitTree(const CordRep* absIn file included from ls2/s2loop.cc_:n18u:
lIn file included from l../src/s2/s2loop.ha:b34l:
eIn file included from  ../src/s2/mutable_s2shape_index.ho:l30d:
_In file included from r/usr/local/clang/include/absl/container/btree_map.he:p66,:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                   ^73
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94257:
:In file included from 23/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nullable':
585:20  :257  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n585e |   a bvsoli_dn uTlrlaanbsl(eM u_HNouwl laabbslle_
n      o| n                      ^n
ull how); In file included from  s2/s2loop_measures.cc/:/18 :
uIn file included from s../src/s2/s2loop_measures.he:d33 :
fIn file included from o../src/s2/s1angle.hr: 28C:
oIn file included from n../src/s2/s2point.hd:V27a:
rIn file included from -../src/s2/s2coder.h>:M23u:
tIn file included from e/usr/local/clang/include/absl/status/status.hx: 67t:
rIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hn:s29f:
e/usr/local/clang/include/absl/strings/cord.hr:
979      :| 30                   ^:
 warning: /usr/local/clang/include/absl/base/nullability.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 979expanded from macro 'absl_nonnull' | 
     241  |  # d e f i n e   a b s l _ n o nCnourldlR e_pN*o nanbuslll_
n      o| n                     ^n
ull rep, const CordzIn file included from Us2/s2loop.ccp:d18a:
tIn file included from e../src/s2/s2loop.hS:c34o:
pIn file included from e../src/s2/mutable_s2shape_index.h&: 30s:
cIn file included from o/usr/local/clang/include/absl/container/btree_map.hp:e66,:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                             ^73
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
586:43  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n586e |   a bvsoli_dn oFnenru(lbla s_eN_oinnntuelrln
a      l| :                     ^:
PerThreadSynch* absl_nonnIn file included from us2/s2loop_measures.ccl:l18
:
      In file included from | ../src/s2/s2loop_measures.h                                          ^:
33:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s982l:_39n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   _982N | o n n u lvlo
i      d|                       ^A
ppendTreeToInlineIn file included from ds2/s2loop.cc(:C18o:
rIn file included from d../src/s2/s2loop.hR:e34p:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o66n:
nIn file included from u/usr/local/clang/include/absl/container/internal/btree.hl:l73 :
tIn file included from r/usr/local/clang/include/absl/strings/cord.he:e94,:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                      ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::590241::4022::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 590# | d e feixnpel iacbistl _Mnuotnenxu(lclo n_sNto nvnoullalt
i      l| e                     ^ 
Mutex* absl_nullaIn file included from bs2/s2loop_measures.ccl:e18 :
/In file included from *../src/s2/s2loop_measures.hi:g33n:
oIn file included from r../src/s2/s1angle.he:d28*:
/In file included from )../src/s2/s2point.h :{27}:

In file included from       ../src/s2/s2coder.h| :                                       ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67257:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nullable':
984:36  :257  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e984  | a b s l _vnouildl aAbplpee n_dNTurleleaTbolTer
e      e| (                      ^C
ordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2loop.ccs:l18_:
nIn file included from o../src/s2/s2loop.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 73                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   expIn file included from ls2/s2loop_measures.cci:c18i:
tIn file included from  ../src/s2/s2loop_measures.hM:u33t:
eIn file included from x../src/s2/s1angle.hL:o28c:
kIn file included from (../src/s2/s2point.hM:u27t:
eIn file included from x../src/s2/s2coder.h&: 23m:
uIn file included from  /usr/local/clang/include/absl/status/status.hA:B67S:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hI:N29T:
E/usr/local/clang/include/absl/strings/cord.hR:N994A:L30_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBU  T994E | _ C A P TvUoRiEdD _CBoYp(ytThoi(ss)t)d
:      :| s                                                                   ^~~~t
ring* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define/usr/local/clang/include/absl/synchronization/mutex.h :a635b:s29l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   635_ | N o nenxupllli
c      i| t                     ^ 
MutexLock(Mutex* absl_In file included from ns2/s2loop_measures.cco:n18n:
uIn file included from l../src/s2/s2loop_measures.hl: 33m:
u) AIn file included from B../src/s2/s1angle.hS:L28_:
EIn file included from X../src/s2/s2point.hC:L27U:
SIn file included from I../src/s2/s2coder.hV:E23_:
LIn file included from O/usr/local/clang/include/absl/status/status.hC:K67_:
FIn file included from U/usr/local/clang/include/absl/status/internal/status_internal.hN:C29T:
I/usr/local/clang/include/absl/strings/cord.hO:N999(:m28u:) 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                            ^

  /usr/local/clang/include/absl/base/nullability.h999: | 241 : 22 :  vnote: oexpanded from macro 'absl_nonnull'i
d   C241o | p#ydTeofAirnrea ya(bcshla_rn*o nanbuslll_ n_oNnonnunlull ld
s      t| )                     ^ 
const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2loop.cc_:N18o:
nIn file included from n../src/s2/s2loop.hu:l34l:

In file included from       ../src/s2/mutable_s2shape_index.h| :                     ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit In file included from Ms2/s2loop_measures.ccu:t18e:
xIn file included from L../src/s2/s2loop_measures.ho:c33k:
(In file included from M../src/s2/s1angle.hu:t28e:
xIn file included from &../src/s2/s2point.h :m27u:
 In file included from A../src/s2/s2coder.hB:S23L:
_In file included from I/usr/local/clang/include/absl/status/status.hN:T67E:
RIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hA:L29_:
A/usr/local/clang/include/absl/strings/cord.hT:T1012R:I37B:U Twarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
CAPT U1012R | E D _ B Ya(btshli:s:)c,o
r      d| _                                                                   ^~~~i
nternal::CordzInfo* absl_nullable cord/usr/local/clang/include/absl/synchronization/mutex.hz:_649i:n29f:o (warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t649  | { 
       e| x                                    ^p
li/usr/local/clang/include/absl/base/nullability.hc:i257t: 23M:u tnote: eexpanded from macro 'absl_nullable'x
Lo  c257k | (#Mduetfeixn*e  aabbssll__nnounlnlualbll em u_,N uclolnasbtl eC
o      n| d                      ^i
tion& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2loop_measures.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 /usr/local/clang/include/absl/strings/cord.h_:N1017o:n51n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2loop.cc: 181049:
 | In file included from  ../src/s2/s2loop.h :s34t:
aIn file included from t../src/s2/mutable_s2shape_index.hi:c30 :
bIn file included from o/usr/local/clang/include/absl/container/btree_map.ho:l66 :
GIn file included from e/usr/local/clang/include/absl/container/internal/btree.ht:F73l:
aIn file included from t/usr/local/clang/include/absl/strings/cord.hA:u94x:
(In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
:/usr/local/clang/include/absl/synchronization/mutex.h::c670o:r74d:_ iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
ernal  :670: | C o redxRpelpi*c iatb sRle_andoenrnMuultle xrLeopc,k
(      M| u                                                       ^t
ex&/usr/local/clang/include/absl/base/nullability.h :m241u: 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iAnTeT RaIbBsUlT_En_oCnAnPuTlUlR E_DN_oBnYn(utlhli
s      )| )                     ^

      |                                                                          ^~~~
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/strings/cord.h::6781050::3545::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1050678 |  |      e x p l i c i t   R e a d e r M u t e x L o cakb(sMlu:t:esxt*r ianbgs_lv_ineown*n ualbls lm_un)o nAnBuSlLl_ SfHrAaRgEmDe_nLtO)C;K
_      F| U                                            ^N
CT/usr/local/clang/include/absl/base/nullability.hI:O241N:(22m:u )note: 
expanded from macro 'absl_nonnull'      
|                                   ^  
241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2loop.cc::105418::
37In file included from :../src/s2/s2loop.h :34warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from  /usr/local/clang/include/absl/container/btree_map.h1054: | 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94::
:In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31d:
_/usr/local/clang/include/absl/synchronization/mutex.hi:n681t:e74r:n awarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
:Cord  R681e | p *  eaxbpslli_cniotn nRuelald erreMpu,t
e      x| L                                    ^o
ck/usr/local/clang/include/absl/base/nullability.h(:M241u:t22e:x &note:  expanded from macro 'absl_nonnull'm
u   A241B | S#Ld_eIfNiTnEeR NaAbLs_lA_TnToRnInBuUlTlE __CNAoPnTnUuRlElD
_      B| Y                     ^(
this),
      |                                                                          ^~~~
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/synchronization/mutex.h28::
689In file included from :../src/s2/s2point.h35::27 :
In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h:  67689:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :e29x:
p/usr/local/clang/include/absl/strings/cord.hl:i1061c:i34t:  Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
derM u1061t | e x Lvoocikd( MCuotpeyxT*o Aarbrsaly_SnloonwnPualtlh (mcuh,a rc*o nasbts lC_onnodnintuiloln &d scto)n dc)o
n      s| t                                  ^;

      | /usr/local/clang/include/absl/base/nullability.h                                 ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2loop.ccl:l18
:
      In file included from | ../src/s2/s2loop.h                     ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2loop_measures.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1831:
:
In file included from ../src/s2/s2loop_measures.h/usr/local/clang/include/absl/synchronization/mutex.h::33710:
:In file included from 74../src/s2/s1angle.h:: 28:
warning: In file included from ../src/s2/s2point.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h710: | 67 :
 In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:p29l:
i/usr/local/clang/include/absl/strings/cord.hc:i1079t: 33W:r iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rMu t1079e | x L oacbks(lM:u:tceoxr&d _miun tAeBrSnLa_lI:N:TCEoRrNdARLe_pA*T TaRbIsBlU_TnEo_nCnAuPlTlU RTEaDk_eBRYe(pt(h)i s&)&);

            | |                                                                          ^~~~                                ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull /usr/local/clang/include/absl/synchronization/mutex.h_:N718o:n35n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33In file included from :
s2/s2loop.ccIn file included from :../src/s2/s1angle.h18::
28In file included from :
../src/s2/s2loop.hIn file included from :../src/s2/s2point.h34::
27In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2coder.h30::
23In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/status/status.h66::
67In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h73::
29In file included from :
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/strings/cord.h94::
1116In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h37::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
722:74:  warning: 1116 | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
 cons  t722  | c r ce_xipnltiecrinta lW:r:iCtrecrCMourtdeSxtLaotcek*( Maubtselx_&n umlul aAbBlSeL _MIaNyTbEeRGNeAtLC_rAcTCToRrIdBSUtTaEt_eC(A)P TcUoRnEsDt_;B
Y      (| t                                    ^h
is/usr/local/clang/include/absl/base/nullability.h):,257
:      23| :                                                                         ^~~~ 
note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable/usr/local/clang/include/absl/synchronization/mutex.h
:      731| :                      ^35
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMuteIn file included from xs2/s2loop_measures.ccL:o18c:
kIn file included from (../src/s2/s2loop_measures.hM:u33t:
eIn file included from x../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.hm:u67,:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
t/usr/local/clang/include/absl/strings/cord.h :C1120o:n30d:i twarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
n&  c1120o | n d )v
o      i| d                                  ^ 
Co/usr/local/clang/include/absl/base/nullability.hp:y241T:o22A:r rnote: aexpanded from macro 'absl_nonnull'y
Im  p241l | (#cdheafri*n ea basbls_ln_onnonnunlull ld s_tN)o ncnounlslt
;      
|                            ^| 
                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.hs2/s2loop_measures.cc::7318:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2loop_measures.h::9433:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s1angle.h::3128:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2point.h::94827::
10In file included from :../src/s2/s2coder.h :23warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h948: | 29 :
 b/usr/local/clang/include/absl/strings/cord.ho:o1140l: 49(:* awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_nu l1140l | a b l e   e v a l _ ) ( c o n s t   C o n d i t i o n *   a b sClo_rndoRnenpuElxlt)e r=n anlu*l lapbtsrl;_
n      o| n         ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257r:e23p:) ;note: 
expanded from macro 'absl_nullable'      
|                                                 ^  
257 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien e_ Naublslla_bnloen
n      u| l                      ^l
 _NonnuIn file included from ls2/s2loop.ccl:
18      :
| In file included from                      ^../src/s2/s2loop.h
:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: In file included from warning: s2/s2loop_measures.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2loop_measures.h  :94833 | :
 In file included from  ../src/s2/s1angle.hb:o28o:
lIn file included from  ../src/s2/s2point.h(:*27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :e29v:
a/usr/local/clang/include/absl/strings/cord.hl:_1146):(10c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 Co n1146d | iCtoirodnR*e pa*b salb_snlo_nnnounlnlu)l l=  NneuwlElxptterr;n
a      l| R                                               ^e
p(/usr/local/clang/include/absl/base/nullability.ha:b241s:l22::: snote: texpanded from macro 'absl_nonnull'r
in  g241_ | v#ideewf idnaet aa,b
s      l| _         ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _In file included from Ns2/s2loop.cco:n18n:
uIn file included from l../src/s2/s2loop.hl:
34      :
| In file included from                      ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2loop.ccs2/s2loop_measures.cc::1818:
:
In file included from In file included from ../src/s2/s2loop.h../src/s2/s2loop_measures.h::3433:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s1angle.h::3028:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2point.h::6627:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2coder.h::7323:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::9467:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/status/internal/status_internal.h::3129:
:
/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/strings/cord.h954::115952::17 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954  | 1159  |  isntlaitniec  CboorodlR eCpa*l laVbosild_PntornFnuunlclt iNoenw(Ecxotnesrtn aCloRnedpi(t
i      o| n                ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241c | )#;d
e      f| i                                                   ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethoIn file included from ds2/s2loop_measures.cc(:c18o:
nIn file included from s../src/s2/s2loop_measures.ht: 33C:
oIn file included from n../src/s2/s1angle.hd:i28t:
iIn file included from o../src/s2/s2point.hn:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :c29):
;/usr/local/clang/include/absl/strings/cord.h
:      1183| :                                                 ^47
: /usr/local/clang/include/absl/base/nullability.hwarning: :241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
22: note:  expanded from macro 'absl_nonnull'1183
 |     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
CordRep* absl_nullaIn file included from bs2/s2loop.ccl:e18 :
rIn file included from e../src/s2/s2loop.hp:)34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                              ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66257:
:In file included from 23/usr/local/clang/include/absl/container/internal/btree.h:: 73:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 257/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i961n:e34 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l961l | a b lset a_tNiucl lbaobolle 
C      a| l                      ^l
ByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2loop_measures.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2loop_measures.h:  33241:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
n/usr/local/clang/include/absl/strings/cord.hn:u1230l:l20
:       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

 1230 | inline const char* In file included from as2/s2loop.ccb:s18l:
_In file included from n../src/s2/s2loop.hu:l34l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e30 :
CIn file included from o/usr/local/clang/include/absl/container/btree_map.hr:d66::
:In file included from I/usr/local/clang/include/absl/container/internal/btree.hn:l73i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.hR:e94p:
:In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.hd:a31t:
a/usr/local/clang/include/absl/synchronization/mutex.h(:)1050 :c31o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{
      |                     ^1050
 |   /usr/local/clang/include/absl/base/nullability.hb:o257o:l23 :W anote: iexpanded from macro 'absl_nullable't
Wi  t257h | T#idmeefoiunte( Maubtselx_*n ualblsalb_lneo n_nNuullll ambul,e 
a      b| s                      ^l
::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2loop_measures.ccn:n18u:
lIn file included from l../src/s2/s2loop_measures.h
:      33| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2loop.cc: 181234:
 | In file included from i../src/s2/s2loop.hn:l34i:
nIn file included from e../src/s2/mutable_s2shape_index.h :c30o:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.ht: 66c:
hIn file included from a/usr/local/clang/include/absl/container/internal/btree.hr:*73 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 1069C:o32r:d :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
nlin e1069R | e p :b:oaosl_ cWhaairtsW(i)t hcDoenasdtl i{n
e      (| M                   ^u
te/usr/local/clang/include/absl/base/nullability.hx:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld emfui,n ea basbls:l:_Tniomnen udlela d_lNionnen)u l{l

            | |                                ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2loop.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/status/internal/status_internal.h::3429:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/cord.h::301239:
:In file included from 38/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.h
:73:
In file included from /usr/local/clang/include/absl/strings/cord.h: 941239:
 | In file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:l31i:
n/usr/local/clang/include/absl/synchronization/mutex.he: 1088a:b35s:l :warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
ord _1088i | n t evroniadl :E:nCaobrldeRDeepb*u gaLbosgl(_cnoonnsntu lclh aCro*r da:b:sIln_lniunlelRaebpl:e: ansa_mter)e;e
(      )| 
                                  ^      
|                                      ^/usr/local/clang/include/absl/base/nullability.h
:257:/usr/local/clang/include/absl/base/nullability.h23::241 :22note: :expanded from macro 'absl_nullable' 
note: expanded from macro 'absl_nonnull'  
257 |   #241d | e#fdienfei naeb salb_snlu_lnloanbnluel l_ N_uNlolnanbullel

            | |                       ^                     ^

In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 | In file included from  s2/s2loop_measures.cc :b18o:
oIn file included from l../src/s2/s2loop_measures.h :W33a:
iIn file included from t../src/s2/s1angle.hC:o28m:
mIn file included from o../src/s2/s2point.hn:(27M:
uIn file included from t../src/s2/s2coder.he:x23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l1245 :m38u:t ewarning: xtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],

      |                          ^
 1245 | /usr/local/clang/include/absl/base/nullability.hi:n241l:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  :241: | c#odredf_iinnet earbnsall_:n:oCnonrudlRle p_*N oanbnsull_ln
u      l| l                     ^a
ble Cord::InlineRep::trIn file included from es2/s2loop.cce:(18):

In file included from       ../src/s2/s2loop.h| :                                     ^34
:
In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/base/nullability.h30::
257In file included from :/usr/local/clang/include/absl/container/btree_map.h23::66 :
In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'absl_nullable':
73:
In file included from   /usr/local/clang/include/absl/strings/cord.h257: | 94#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hf:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a1093b:s46l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab l1093e |   _ Nvuolilda bRleem
o      v| e                      ^(
base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullIn file included from as2/s2loop_measures.ccb:l18e:
 In file included from m../src/s2/s2loop_measures.hu:)33
:
      In file included from | ../src/s2/s1angle.h                                 ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::25727::
23In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n1268e: 51a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null a1268b | lien l_iNnuel lvaobilde 
C      o| r                      ^d
::InlineRep::EmplaceTree(CordRep* abIn file included from ss2/s2loop.ccl:_18n:
oIn file included from n../src/s2/s2loop.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.hr:e30p:
,In file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66                                                  ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/base/nullability.h73::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 1117#:d34e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 abs l1117_ | n o nenxupllli c_iNto nMnuutlelx
L      o| c                     ^k
Maybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from as2/s2loop_measures.ccb:l18e:
 In file included from _../src/s2/s2loop_measures.hN:u33l:
lIn file included from a../src/s2/s1angle.hb:l28e:

In file included from       ../src/s2/s2point.h| :                      ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::IIn file included from ns2/s2loop.ccl:i18n:
eIn file included from R../src/s2/s2loop.he:p34::
:In file included from E../src/s2/mutable_s2shape_index.hm:p30l:
aIn file included from c/usr/local/clang/include/absl/container/btree_map.he:T66r:
eIn file included from e/usr/local/clang/include/absl/container/internal/btree.h(:C73o:
rIn file included from d/usr/local/clang/include/absl/strings/cord.hR:e94p:
*In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n1132o:n10n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
rep ,1132
 |        |                                                    ^M
ute/usr/local/clang/include/absl/base/nullability.hx:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee fcionnes ta bmsul__;n
o      n| n         ^u
ll/usr/local/clang/include/absl/base/nullability.h :_257N:o23n:n unote: lexpanded from macro 'absl_nullable'l

      |                        ^257
 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSLIn file included from _s2/s2loop_measures.ccE:X18C:
LIn file included from U../src/s2/s2loop_measures.hS:I33V:
EIn file included from _../src/s2/s1angle.hL:O28C:
KIn file included from _../src/s2/s2point.hF:U27N:
CIn file included from T../src/s2/s2coder.hI:O23N:
(In file included from m/usr/local/clang/include/absl/status/status.hu:)67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h      ^~~~:
29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::Inl/usr/local/clang/include/absl/synchronization/mutex.hi:n1153e:R39e:p :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
etT r1153e | e O reExmppltiyc(iCotr dRReelpe*a saabbslle_MnuutlelxaLbolcek (rMeupt,e
x      *|                                                       ^a
bsl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
mu  )257
 |       #| d                                      ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |   In file included from  s2/s2loop_measures.cc : 18 :
MIn file included from u../src/s2/s2loop_measures.ht:e33x:
&In file included from  ../src/s2/s1angle.hm:u28 :
AIn file included from B../src/s2/s2point.hS:L27_:
IIn file included from N../src/s2/s2coder.hT:E23R:
NIn file included from A/usr/local/clang/include/absl/status/status.hL:_67A:
TIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hR:I29B:
U/usr/local/clang/include/absl/strings/cord.hT:E1301_:C56A:P Twarning: Utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
ED_B Y1301( | tihnilsi)n,e
       v| o                                                    ^~~~i
d Cord::InlineRep::CommitTree(const Co/usr/local/clang/include/absl/synchronization/mutex.hr:d1166R:e39p:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n u1166l | l a belxep loilcdi_tr eRpe,l
e      a| s                                                       ^a
bl/usr/local/clang/include/absl/base/nullability.he:M257u:t23e:x Lnote: oexpanded from macro 'absl_nullable'c
k(  M257u | t#edxe*f ianbes la_bnsoln_nnuullll ambul,e  c_oNnusltl aCbolned
i      t| i                      ^o
n& cond)
      | In file included from                                       ^s2/s2loop_measures.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2loop_measures.h241::3322:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h:  27241:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
o/usr/local/clang/include/absl/strings/cord.hn:n1302u:l50l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu l1302l | 
        |                       ^ 
                                    CordRep* absl_nonIn file included from ns2/s2loop.ccu:l18l:
 In file included from r../src/s2/s2loop.he:p34,:

In file included from       ../src/s2/mutable_s2shape_index.h| :                                                 ^30
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24166::
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :73note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1179e: 10a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non n1179u | l l  M_uNtoenxn*u lalb
s      l| _                     ^n
ullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:27:
In file included from /usr/local/clang/include/absl/strings/str_format.h:83:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/arg.h:36:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2loop_measures.cc
:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inlinIn file included from es2/s2loop.cc :C18o:
rIn file included from d../src/s2/s2loop.h :C34o:
rIn file included from d../src/s2/mutable_s2shape_index.h:::30A:
dIn file included from v/usr/local/clang/include/absl/container/btree_map.ha:n66c:
eIn file included from A/usr/local/clang/include/absl/container/internal/btree.hn:d73R:
e/usr/local/clang/include/absl/strings/cord.ha:d588(:C17h:a rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
era  t588o | r *   a bcsoln_snto nCnourldl*  iatb,s
l      _| n                                               ^o
nnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _Non  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const charIn file included from *s2/s2loop_measures.cc :a18b:
sIn file included from l../src/s2/s2loop_measures.h_:n33o:
nIn file included from n../src/s2/s1angle.hu:l28l:
;In file included from 
../src/s2/s2point.h      :| 27                                ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  241/usr/local/clang/include/absl/strings/cord.h | :#1672d:e41f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl _1672n | oinnnluilnle  _vNooindn uClolr
d      :| :                     ^A
dvance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2loop.cce:f18i:
nIn file included from e../src/s2/s2loop.h :a34b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:
 In file included from _/usr/local/clang/include/absl/container/internal/btree.hN:o73n:
n/usr/local/clang/include/absl/strings/cord.hu:l655l:
39      :|                       ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internalIn file included from :s2/s2memory_tracker.cc::C18o:
rIn file included from d../src/s2/s2memory_tracker.hR:e27p:
FIn file included from l/usr/local/clang/include/absl/strings/str_format.ha:t83*:
 In file included from a/usr/local/clang/include/absl/strings/internal/str_format/arg.hb:s37l:
_In file included from n/usr/local/clang/include/absl/strings/has_absl_stringify.ho:n22n:
ul/usr/local/clang/include/absl/strings/string_view.hl:
53      :| 54                                   ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:    note: 53expanded from macro 'absl_nonnull' | 
co  n241s | t#edxepfri nset raibnsgl__vnioenwn uNlull l_SNaofnenSutlrli
n      g| V                     ^i
ew(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2loop.cc:/usr/local/clang/include/absl/status/status.h18::
725In file included from :../src/s2/s2loop.h38::34 :
In file included from warning: ../src/s2/mutable_s2shape_index.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66  :
725In file included from  | /usr/local/clang/include/absl/container/internal/btree.h : 73s:
t/usr/local/clang/include/absl/strings/cord.ha:t1530i:c55 :s twarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
us_i n1530t | eirnnlailn:e: SCtoartdu:s:RCehpu*n kaIbtselr_antoonrn:u:lClh uPnrkeIptaerreaTtooMro(dciofnys(t
       C| o                                     ^r
d* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | c#odredf)i n{e
       a| b                                                      ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop_measures.cc:18:
In file included from ../src/s2/s2loop_measures.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
367 warnings generated.
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2padded_cell.cc -o s2/s2padded_cell.o
:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36In file included from :
s2/s2hausdorff_distance_query.ccIn file included from :../src/s2/base/casts.h20::
34In file included from :
../src/s2/s2closest_edge_query.hIn file included from :/usr/local/clang/include/absl/log/log.h34::
209In file included from :
../src/s2/s2closest_edge_query_base.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h32::
22In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/log/internal/log_message.h65::
53In file included from :
/usr/local/clang/include/absl/container/internal/btree.h:70/usr/local/clang/include/absl/types/source_location.h:
:In file included from 113/usr/local/clang/include/absl/container/internal/layout.h::19198::
 In file included from /usr/local/clang/include/absl/strings/str_cat.hwarning: :116type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
  /usr/local/clang/include/absl/strings/numbers.h113: | 77 : 61 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst    77c | h[a[rn*o daibsscla_rndo]n]n ublolo lf iSliem_pnlaemAet o=f (_a_bbsuli:l:tsitnr_iFnIgL_Ev(i)e)w  {s
t      r| ,                  ^ 
floa/usr/local/clang/include/absl/base/nullability.ht:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld eofuitn)e; 
a      b| s                                                            ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonIn file included from ns2/s2hausdorff_distance_query.ccu:l20l:
 In file included from f../src/s2/s2closest_edge_query.hi:l34e:
,In file included from  ../src/s2/s2closest_edge_query_base.hi:n32t:
 In file included from l/usr/local/clang/include/absl/container/btree_set.hi:n65e:
,In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                         ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/str_cat.h::22116::
 In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :expanded from macro 'absl_nonnull'23
:
/usr/local/clang/include/absl/strings/numbers.h  :24188 | :#62d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e ab   s88l | _[n[onnonduilslc a_rNdo]n]n ublolo
l       | S                     ^i
mpleAtod(absl::string_view str, dIn file included from os2/s2max_distance_targets.ccu:b16l:
eIn file included from *../src/s2/s2max_distance_targets.h :a27b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l25l:
 In file included from o../src/s2/util/coding/coder.hu:t36):
;In file included from 
../src/s2/base/casts.h      :| 34                                                             ^:

In file included from /usr/local/clang/include/absl/log/log.h:209/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h::2222::
 /usr/local/clang/include/absl/log/internal/log_message.hnote: :expanded from macro 'absl_nonnull'80
:26:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi   n80e |   a bLsolg_Mneosnsnauglel( c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull file, int line,
      |                          ^In file included from 
s2/s2hausdorff_distance_query.cc:20/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2closest_edge_query.h::2234::
 In file included from ../src/s2/s2closest_edge_query_base.hnote: :expanded from macro 'absl_nonnull'32
:
In file included from /usr/local/clang/include/absl/container/btree_set.h  :24165 | :
#In file included from d/usr/local/clang/include/absl/container/internal/btree.he:f70i:
nIn file included from e/usr/local/clang/include/absl/container/internal/layout.h :a198b:
sIn file included from l/usr/local/clang/include/absl/strings/str_cat.h_:n116o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:l23l:
 /usr/local/clang/include/absl/strings/numbers.h_:N98o:n60n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
   98 | In file included from [s2/s2loop_measures.cc[:n18o:
dIn file included from i../src/s2/s2loop_measures.hs:c33a:
rIn file included from In file included from d../src/s2/s1angle.hs2/s2max_distance_targets.cc]::]2816 :
:
bIn file included from In file included from o../src/s2/s2point.h../src/s2/s2max_distance_targets.ho::l2727 :
:
SIn file included from In file included from i../src/s2/s2coder.h../src/s2/s1angle.hm::p2328l:
:
eIn file included from A/usr/local/clang/include/absl/status/status.h../src/s2/s2point.ht::o103125b::
(42In file included from a:../src/s2/util/coding/coder.hb :s36lwarning: :
:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :
../src/s2/base/casts.hs:t34r:
iIn file included from n /usr/local/clang/include/absl/log/log.hg1031:_ | 209vi:
inIn file included from el/usr/local/clang/include/absl/log/internal/log_impl.hiw: n22se:
 t/usr/local/clang/include/absl/log/internal/log_message.hcr:o,82n s:bt26o :so lwarning: t*type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a t
uasb_   si82ln | _ tn eorLnonngaulMl:els: sSoatugatet)(u;cs
oR      ne| s                                                           ^pt
 *c/usr/local/clang/include/absl/base/nullability.h h:aa241rb:*s22 l:a_ bnnote: sexpanded from macro 'absl_nonnull'ol
_nn  on241nu | n#ludllel f iSfnitel aea,tbu sisln:_tn: olRninenuepl,Tl
o       P_| oN                         ^io
nnt/usr/local/clang/include/absl/base/nullability.henr:u(241
l:l      22
| :                                         ^       
| note:                      ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h:  241241: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fnioIn file included from nns2/s2hausdorff_distance_query.ccne:u 20la:
lbIn file included from  s../src/s2/s2closest_edge_query.h_l:N_34on:
noIn file included from nn../src/s2/s2closest_edge_query_base.hun:lu32ll:

lIn file included from        /usr/local/clang/include/absl/container/btree_set.h| _:                     ^N65
o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l70l:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :                     ^198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnIn file included from us2/s2loop_measures.ccl:l18 :
oIn file included from u../src/s2/s2loop_measures.ht:)33;:

In file included from       ../src/s2/s1angle.h| :                                           ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27241:
:In file included from 22../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h
:1038  :24133 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine  1038In file included from a | s2/s2max_distance_targets.ccb :s 16l :
_ In file included from ns../src/s2/s2max_distance_targets.hot:na27nt:
uuIn file included from ls../src/s2/s1angle.hl_: i28n_:
tNeIn file included from or../src/s2/s2point.hnn:na25ul:
l:In file included from l:../src/s2/util/coding/coder.h
S:      t36| a:
                     ^tIn file included from 
u../src/s2/base/casts.hs:R34e:
pIn file included from */usr/local/clang/include/absl/log/log.h :a209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h_:n22o:
n/usr/local/clang/include/absl/log/internal/log_message.hn:u119lIn file included from :ls2/s2hausdorff_distance_query.cc41 ::r20 e:
warning: pIn file included from )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2closest_edge_query.h 
:{34
:
        In file included from 119| ../src/s2/s2closest_edge_query_base.h |                                 ^: 
32 :
LIn file included from o/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_set.hg::M24165e::
s22In file included from s:/usr/local/clang/include/absl/container/internal/btree.ha :g70enote: :
expanded from macro 'absl_nonnull'&In file included from 
 /usr/local/clang/include/absl/container/internal/layout.hT  :o241198S | :
i#In file included from nd/usr/local/clang/include/absl/strings/str_cat.hke:fA116li:
nsIn file included from oe/usr/local/clang/include/absl/strings/internal/stringify_sink.h( :aa23bb:
s/usr/local/clang/include/absl/strings/numbers.hls::l116:_:Ln55oo:ng Swarning: nitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]un
kl*l   a 116b_ | s Nl o_ nn on n un ul ll l  
 s       i | n k                     ^ )
 ; 
        |                                          ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d eafbisnle: :aibnstl1_2n8o*n naublsll __nNoonnnnuullll 
o      u| t                     ^)
;
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2max_distance_targets.cca:b16s:
lIn file included from _../src/s2/s2max_distance_targets.hn:o27n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl:
36      :
| In file included from                      ^../src/s2/base/casts.h
:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessageIn file included from &s2/s2hausdorff_distance_query.cc :T20o:
SIn file included from i../src/s2/s2closest_edge_query.hn:k34O:
nIn file included from l../src/s2/s2closest_edge_query_base.hy:(32a:
bIn file included from s/usr/local/clang/include/absl/container/btree_set.hl::65::
LIn file included from o/usr/local/clang/include/absl/container/internal/btree.hg:S70i:
nIn file included from k/usr/local/clang/include/absl/container/internal/layout.h*: 198a:
bIn file included from s/usr/local/clang/include/absl/strings/str_cat.hl:_116n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:u23l:
l/usr/local/clang/include/absl/strings/numbers.h :s118i:n56k:) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                         ^
  118/usr/local/clang/include/absl/base/nullability.h | : 241 :In file included from  22 s2/s2loop_measures.cc: :  18note:  expanded from macro 'absl_nonnull':
 
 In file included from    ../src/s2/s2loop_measures.h241 : |  #33 d:
 eIn file included from  f../src/s2/s1angle.h i :n e28   :
a bIn file included from  s../src/s2/s2point.h l :_ 27n :
o n In file included from n ../src/s2/s2coder.hu l: l23   :
_ N/usr/local/clang/include/absl/status/status.h o :n 1063n u: l 13la
:b       s| warning: l                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:
uin t10631 | 2c8o*n satb sclh_anro*n naublsll _onuotn)n;u
l      l|                                                         ^S
ta/usr/local/clang/include/absl/base/nullability.ht:u241s:M22e:s snote: ageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2max_distance_targets.ccl:
16      :
| In file included from                      ^../src/s2/s2max_distance_targets.h
:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBufIn file included from fs2/s2memory_tracker.cce:r18(:
fIn file included from l../src/s2/s2memory_tracker.ho:a27t:
 In file included from f/usr/local/clang/include/absl/strings/str_format.h,: 84c:
hIn file included from a/usr/local/clang/include/absl/strings/internal/str_format/bind.hr:*24 :
aIn file included from b/usr/local/clang/include/absl/container/inlined_vector.hs:l56_:
nIn file included from o/usr/local/clang/include/absl/container/internal/inlined_vector.hn:n35u:
ll/usr/local/clang/include/absl/types/span.h :b212u:f22f:e rwarning: )type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension];

      |       ^
  /usr/local/clang/include/absl/base/nullability.h212: | 241 : 22u:s inote: nexpanded from macro 'absl_nonnull'g
 p  o241i | n#tdeerf i=n eT *a basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289In file included from :s2/s2hausdorff_distance_query.cc34::20 :
note: In file included from expanded from macro 'absl_nullability_unknown'../src/s2/s2closest_edge_query.h
:34:
  In file included from 289../src/s2/s2closest_edge_query_base.h | :#32d:
eIn file included from f/usr/local/clang/include/absl/container/btree_set.hi:n65e:
 In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s70l:
_In file included from n/usr/local/clang/include/absl/container/internal/layout.hu:l198l:
aIn file included from b/usr/local/clang/include/absl/strings/str_cat.hi:l116i:
tIn file included from y/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:u23n:
k/usr/local/clang/include/absl/strings/numbers.hn:o183w:n58 :_ Nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l_u  n183s | pcehcairf*i eadb
s      l| _                                 ^n
onnull RoundTIn file included from rs2/s2memory_tracker.cci:p18F:
lIn file included from o../src/s2/s2memory_tracker.ha:t27T:
oIn file included from B/usr/local/clang/include/absl/strings/str_format.hu:f84f:
eIn file included from r/usr/local/clang/include/absl/strings/internal/str_format/bind.h(:f24l:
oIn file included from a/usr/local/clang/include/absl/container/inlined_vector.ht:56 :
fIn file included from ,/usr/local/clang/include/absl/container/internal/inlined_vector.h :c35h:
a/usr/local/clang/include/absl/types/span.hr:*213 :a34:b swarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
non  n213u | l l  ubsuifnfge rc)o;n
s      t| _                                                         ^p
oi/usr/local/clang/include/absl/base/nullability.hn:t241e:r22 :=  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | T#*d eafbisnle_ naublslla_bniolnintuyl_lu n_kNnoonwnnu;l
l      
|                                        ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define In file included from as2/s2hausdorff_distance_query.ccb:s20l:
_In file included from n../src/s2/s2closest_edge_query.hullaIn file included from bs2/s2max_distance_targets.cci:l16i:
tIn file included from y../src/s2/s2max_distance_targets.h_:u27n:
kIn file included from n../src/s2/s1angle.ho:w28n:
 In file included from _../src/s2/s2point.hN:u25l:
lIn file included from _../src/s2/util/coding/coder.hu:n36s:
pIn file included from e../src/s2/base/casts.hc:i34f:
iIn file included from e/usr/local/clang/include/absl/log/log.hd:
209      :
| In file included from                                  ^/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     c:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_noonnsntu lvlo ibdu*f faebrs)l
_      n| u                                                    ^l
la/usr/local/clang/include/absl/base/nullability.hb:l241e: 22c:o nnote: sexpanded from macro 'absl_nonnull't
&   v241) | ;#
d      e| f                ^i
ne /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ull   _257N | o#ndneufliln
e       | a                     ^b
sl_nullable _Nullable
      |                       ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2max_distance_targets.cc | :#16d:
eIn file included from f../src/s2/s2max_distance_targets.hi:n27e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl: 36_:
NIn file included from o../src/s2/base/casts.hn:n34u:
lIn file included from l/usr/local/clang/include/absl/log/log.h
:      209| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2hausdorff_distance_query.cc
:20:
In file included from ../src/s2/s2closest_edge_query.h:34  :
425In file included from  | ../src/s2/s2closest_edge_query_base.h : 32L:
oIn file included from g/usr/local/clang/include/absl/container/btree_set.hM:e65s:
sIn file included from a/usr/local/clang/include/absl/container/internal/btree.hg:e70F:
aIn file included from t/usr/local/clang/include/absl/container/internal/layout.ha:l198(:
cIn file included from o/usr/local/clang/include/absl/strings/str_cat.hn:s116t:
 In file included from c/usr/local/clang/include/absl/strings/internal/stringify_sink.hh:a23r:
*/usr/local/clang/include/absl/strings/numbers.h :a200b:s54l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l200  | fcihlaer,*  ianbts ll_innoen)n uAlBlS LF_aAsTtTIRnItBTUoTBEu_fCfOeLrD(;u
i      n| t                              ^3
2_t/usr/local/clang/include/absl/base/nullability.h :n241,: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bosult__nsotnrn)u
l      l|                                                       ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |  In file included from  s2/s2hausdorff_distance_query.ccL:o20g:
MIn file included from e../src/s2/s2closest_edge_query.hs:s34a:
gIn file included from e../src/s2/s2closest_edge_query_base.hF:a32t:
aIn file included from l/usr/local/clang/include/absl/container/btree_set.h(:c65o:
nIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht: 70c:
hIn file included from a/usr/local/clang/include/absl/container/internal/layout.hr:*198 :
aIn file included from b/usr/local/clang/include/absl/strings/str_cat.hs:l116_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl: 201f:i5l:e ,warning:  'diagnose_if' is a clang extension [-Wgcc-compat]i
nt   l201 | i n e , 
A      B| S                              ^L
_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Nexpanded from macro 'absl_nonnull'E
ED_MI  N241_ | S#IdZeEf(ionuet _asbtsrl,_ nkoFnansutlTlo B_uNfofnenruSlIn file included from ils2/s2memory_tracker.ccz
e:      )18| ;                     ^:


In file included from       ../src/s2/s2memory_tracker.h| :    ^27
:
In file included from /usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/base/macros.hIn file included from ::s2/s2max_distance_targets.cc84251::
:16In file included from 18:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:In file included from : ../src/s2/s2max_distance_targets.h24note: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
27
In file included from :
/usr/local/clang/include/absl/container/inlined_vector.hIn file included from   :../src/s2/s1angle.h25156: | :
28 In file included from :
 /usr/local/clang/include/absl/container/internal/inlined_vector.hIn file included from _:../src/s2/s2point.h_35:a:
25t:
t/usr/local/clang/include/absl/types/span.hIn file included from r:../src/s2/util/coding/coder.hi733:b:36u31:
t:eIn file included from _ ../src/s2/base/casts.h_:(warning: 34(type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
d
In file included from i/usr/local/clang/include/absl/log/log.ha:g209n:
oIn file included from   s/usr/local/clang/include/absl/log/internal/log_impl.h733e:_ | 22ic:
fo/usr/local/clang/include/absl/log/internal/log_message.hn(:s_427_t:be31ux:ip lrtwarning: i type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nS
_poa  bn427j< | eT c t> _  s i M z ea ( kO be j ,S   0 p)  a <cn oNn(,s tT\ 
*c      h | aa                 ^brs
l*_ naublslla_bnIn file included from los2/s2hausdorff_distance_query.ccen: np20ut:
lrIn file included from l ../src/s2/s2closest_edge_query.h A:fB34aS:
iLIn file included from l_../src/s2/s2closest_edge_query_base.huA:rT32Te_:
RmIn file included from sI/usr/local/clang/include/absl/container/btree_set.hgB:)U65 T:
AEIn file included from B_/usr/local/clang/include/absl/container/internal/btree.hSL:LI70_F:
AEIn file included from TT/usr/local/clang/include/absl/container/internal/layout.hTI:RM198IE:
_BIn file included from UB/usr/local/clang/include/absl/strings/str_cat.hTO:EU116_N:
CDIn file included from O,/usr/local/clang/include/absl/strings/internal/stringify_sink.h
L:D      23;| :

                              ^/usr/local/clang/include/absl/strings/numbers.h      
:| 202                              ^:
7/usr/local/clang/include/absl/base/nullability.h::/usr/local/clang/include/absl/base/nullability.h 257:warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]24123
::22   :note: 202expanded from macro 'absl_nullable'  | 
note: cexpanded from macro 'absl_nonnull'  h
257a |   r#241d* |  e#adfbeisflnie_nn eo ananbbuslsll_l n_FoannsnutulIllnlta T_boNlBoeun fnf_uelNrl(u
il      nl| t                     ^a6
b4l_et
       i| ,                      ^ 
char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2memory_tracker.ccn:n18u:
lIn file included from l../src/s2/s2memory_tracker.h :_27N:
oIn file included from n/usr/local/clang/include/absl/strings/str_format.hn:u84lIn file included from :
ls2/s2max_distance_targets.cc
In file included from :      /usr/local/clang/include/absl/strings/internal/str_format/bind.h16| ::
                     ^24In file included from 
:
../src/s2/s2max_distance_targets.hIn file included from :/usr/local/clang/include/absl/container/inlined_vector.h27::
56In file included from :
../src/s2/s1angle.hIn file included from In file included from :/usr/local/clang/include/absl/container/internal/inlined_vector.hs2/s2hausdorff_distance_query.cc28:::
3520In file included from :
:
../src/s2/s2point.hIn file included from /usr/local/clang/include/absl/types/span.h:../src/s2/s2closest_edge_query.h:25:739:
34:In file included from :
21../src/s2/util/coding/coder.hIn file included from ::../src/s2/s2closest_edge_query_base.h 36:warning: :
32type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from :

../src/s2/base/casts.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h34:  :
65739In file included from :
 | /usr/local/clang/include/absl/log/log.hSIn file included from :p/usr/local/clang/include/absl/container/internal/btree.h209a::
n70In file included from <:
/usr/local/clang/include/absl/log/internal/log_impl.hTIn file included from :>/usr/local/clang/include/absl/container/internal/layout.h22 ::
M/usr/local/clang/include/absl/log/internal/log_message.ha198:k:
e436SIn file included from :p/usr/local/clang/include/absl/strings/str_cat.h36a::n116 (warning: T:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*In file included from 
 /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:  b23s436:
l/usr/local/clang/include/absl/strings/numbers.h | _: n202 u:Ll53ol:ga Mbwarning: eltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]se
 sba  ge202ge | iDcnehb auArgB*FS aaLtba_sllA(_TcnoTonnRsntIu BlcUlhT aFrEa*_s tLaIbInsFtlETT_InooMBEn_unfBuflOelUr N(fDiin,lte
6,4      
_|       t                    ^|                                     ^
i
,/usr/local/clang/include/absl/base/nullability.h :/usr/local/clang/include/absl/base/nullability.hc257:h:241a23:r:22* : note:  aexpanded from macro 'absl_nullable'note: b
expanded from macro 'absl_nonnull's
  l257  _ | 241n# | o#ndndeufleilnf eib unafbefse lr_a)n
bo      ns| ln                                                    ^u_
lnl/usr/local/clang/include/absl/base/nullability.h u:_l241Nl:aob22lne: n _note: Nuexpanded from macro 'absl_nonnull'ul
ll  l
241a       | b| #lde                     ^e

f      i| n                      ^e
 absl_nonnullIn file included from  s2/s2memory_tracker.cc_:N18o:
nIn file included from n../src/s2/s2memory_tracker.hu:l27l:

In file included from       /usr/local/clang/include/absl/strings/str_format.h| :                     ^84
:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 | In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.hIn file included from  :s2/s2hausdorff_distance_query.cc 28: :
20 In file included from :
 ../src/s2/s2point.hIn file included from  :../src/s2/s2closest_edge_query.hT25:*:
34 In file included from :
a../src/s2/util/coding/coder.hIn file included from b:../src/s2/s2closest_edge_query_base.hs36:l:
32_In file included from :
n../src/s2/base/casts.hIn file included from u:/usr/local/clang/include/absl/container/btree_set.hl34:l:
65aIn file included from :
b/usr/local/clang/include/absl/log/log.hlIn file included from :e/usr/local/clang/include/absl/container/internal/btree.h 209:e:
n70In file included from d:
/usr/local/clang/include/absl/log/internal/log_impl.h)In file included from : /usr/local/clang/include/absl/container/internal/layout.h22n::
o198e/usr/local/clang/include/absl/log/internal/log_message.h:
x:In file included from c446/usr/local/clang/include/absl/strings/str_cat.he::p43116t::
  In file included from {warning: /usr/local/clang/include/absl/strings/internal/stringify_sink.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
      23| :
                      ^/usr/local/clang/include/absl/strings/numbers.h446
: | 203/usr/local/clang/include/absl/base/nullability.h : :5L257:o: g23Mwarning: e:'diagnose_if' is a clang extension [-Wgcc-compat]s 
snote: aexpanded from macro 'absl_nullable'  g
203e | Q   u257 i |  e# dtAelByfSDiLnee_ bauIbgNFsTaEltRa_NlAn(Luc_loNnlEsEatDb _clMheIaN r_*_ SNaIbuZsEll(l_bnauobflnfneeur
l,l        | kf                      ^Fi
alset,T
o      B| u                                          ^f
fe/usr/local/clang/include/absl/base/nullability.hr:S241i:z22e:) ;note: 
expanded from macro 'absl_nonnull'      
|     ^  
241 | #/usr/local/clang/include/absl/base/macros.hd:e251f:i18n:e  note: aexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'b
sl_  n251o | n n u_l_la t_tNroinbnuutlel_
_      (| (                     ^d
iagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.hIn file included from :s2/s2max_distance_targets.cc32::
16In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :../src/s2/s2max_distance_targets.h65::
27In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :../src/s2/s1angle.h70::
28In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :../src/s2/s2point.h198::
25In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :../src/s2/util/coding/coder.h116::
36In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :../src/s2/base/casts.h23::
34/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 204/usr/local/clang/include/absl/log/log.h::7209::
 In file included from /usr/local/clang/include/absl/log/internal/log_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
:
/usr/local/clang/include/absl/log/internal/log_message.h:454  :20438 | :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* ab  s454l | _ n oLnonguMlels sFaagsetQIuniteTtolByuFfaftearl((ucionnts6t4 _cth air,*  cahIn file included from bas2/s2memory_tracker.ccsrl:*_18 n:
aoIn file included from bn../src/s2/s2memory_tracker.hsn:lu27_l:
nlIn file included from o /usr/local/clang/include/absl/strings/str_format.hnfn:iu84ll:
elIn file included from , 
/usr/local/clang/include/absl/strings/internal/str_format/bind.hb      :u| f                                     ^24f
e:
rIn file included from /usr/local/clang/include/absl/base/nullability.h)/usr/local/clang/include/absl/container/inlined_vector.h:
:241      56:| :
22      ^In file included from :
/usr/local/clang/include/absl/container/internal/inlined_vector.h :/usr/local/clang/include/absl/base/nullability.h35note: ::
expanded from macro 'absl_nonnull'241/usr/local/clang/include/absl/types/span.h
::22  794:241:  | note: 8#expanded from macro 'absl_nonnull':d
e f  warning: i241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n | e
 #adbe  sfl794i_nn | e o n an bu slTll_* n_ oNanonnbunslulll l__
nN      uo| nl                     ^nl
aubllle
       p| t                     ^r
 ABSL_ATTRIn file included from Is2/s2hausdorff_distance_query.ccB:UIn file included from 20Ts2/s2max_distance_targets.cc:
E:In file included from _16../src/s2/s2closest_edge_query.hL:
:IIn file included from 34F../src/s2/s2max_distance_targets.h:
E:In file included from T27../src/s2/s2closest_edge_query_base.hI:
:MIn file included from 32E../src/s2/s1angle.h:
_:In file included from B28/usr/local/clang/include/absl/container/btree_set.hO:
:UIn file included from 65N../src/s2/s2point.h:
D:In file included from ,25/usr/local/clang/include/absl/container/internal/btree.h :
:sIn file included from 70i../src/s2/util/coding/coder.h:
z:In file included from e36/usr/local/clang/include/absl/container/internal/layout.h_:
:tIn file included from 198 ../src/s2/base/casts.h:
s:In file included from i34/usr/local/clang/include/absl/strings/str_cat.hz:
:eIn file included from 116)/usr/local/clang/include/absl/log/log.h:
 :In file included from n209/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:
:eIn file included from 23x/usr/local/clang/include/absl/log/internal/log_impl.h:
c:/usr/local/clang/include/absl/strings/numbers.he22:p:
204t/usr/local/clang/include/absl/log/internal/log_message.h: :54{456:
:       warning: 38| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:       ^
 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]204/usr/local/clang/include/absl/base/nullability.h
 | :c257h  a:456r23 | *  :a b Lsnote: olg_Mexpanded from macro 'absl_nullable'neo
snsna  ug257lel | Q# uFidaesettlIfynFitaTntoaeB lu(afcfbeosrln(_usintn utlc6h4laa_rbt* l ia,eb  s_clhN_aunro*ln naubllslal _bfniollneen,u lil
n       tb u| lfi                      ^fne
er,)

            | |                                      ^                                                     ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoIn file included from ons2/s2memory_tracker.ccnnn:uu18lll:
l
In file included from 
      ../src/s2/s2memory_tracker.h      | :|                      ^27                     ^
:

In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.hIn file included from :s2/s2max_distance_targets.cc56::
16In file included from :
/usr/local/clang/include/absl/container/internal/inlined_vector.hIn file included from :../src/s2/s2max_distance_targets.h35::
27/usr/local/clang/include/absl/types/span.h:
:In file included from 799../src/s2/s1angle.h::3228::
 In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/util/coding/coder.h  In file included from :799s2/s2hausdorff_distance_query.cc36 | :S:
20pIn file included from :
a../src/s2/base/casts.hIn file included from n:../src/s2/s2closest_edge_query.h<34:c:
34oIn file included from :
n/usr/local/clang/include/absl/log/log.hs:t209 :
TIn file included from >/usr/local/clang/include/absl/log/internal/log_impl.h :M22a:
k/usr/local/clang/include/absl/log/internal/log_message.he:C457o:n38s:t Swarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
n(T  *457  | a b s l _ n u l l a b l e   b e g i n 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  cnote: hexpanded from macro 'absl_nullable'a
r*   257a | b#sdle_fnionnen ualbls lf_aniullulraeb_lmes g_)N
u      l| l                                     ^a
bl/usr/local/clang/include/absl/base/nullability.he:
241      :| 22                      ^:
 note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2memory_tracker.cce: 18a:
bIn file included from s../src/s2/s2memory_tracker.hl:_27n:
oIn file included from n/usr/local/clang/include/absl/strings/str_format.hn:u84l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.h_:N24o:
nIn file included from n/usr/local/clang/include/absl/container/inlined_vector.hu:l56l:

In file included from       /usr/local/clang/include/absl/container/internal/inlined_vector.h| :                     ^35
:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2hausdorff_distance_query.cc
:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from   ../src/s2/s2closest_edge_query_base.h523: | 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.hf:a116l:
sIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h,: 23f:
a/usr/local/clang/include/absl/strings/numbers.hl:s335e:)52;:
       | warning:                               ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:  496335: | 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
      496  |  # d e  f i n e   A B S L _ I N T E R N A L _ X ( F uanbcs,l :C:ailnlte1e2,8 *K Qaubasll,_ nMoQnunaull,l  KoVuatl)u e{,
       M| V                                                   ^a
lu/usr/local/clang/include/absl/base/nullability.he:,241 :.22.:. )note:  expanded from macro 'absl_nonnull' 
     241\ | 
#      d| e        ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                               /usr/local/clang/include/absl/container/internal/btree_container.h : 522 : 3 :   warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl::  u522i | n t 1A2B8S*L _aIbNsTlE_RnNoAnLn_uXl(li nosuetr)t _{o
r      _| a                                                    ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241,: 22i:n snote: eexpanded from macro 'absl_nonnull'r
t_  o241r | _#adsesfiignne_ iambpsll,_ ncoonnnsutl l& ,_ Ncoonnnsutl l&
,      
|                            ^| 
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),  In file included from  s2/s2hausdorff_distance_query.cc : 20 :
 In file included from  ../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h :\70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                                                   ^:
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/container/internal/common.h::2332:
:9/usr/local/clang/include/absl/strings/numbers.h:: 346note: :macro 'ABSL_INTERNAL_IF_false' defined here44
:    warning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i346n | e   A B S L _ I N T E R N A L _ I F _ f a l s e ( i f _ s a t i s fiinetd_,t y.p.e.*)  a_b_sVlA__nAoRnGnSu_l_l
       o| u        ^t
) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2loop.cc22::18 :
In file included from note: ../src/s2/s2loop.hexpanded from macro 'absl_nonnull':
34:
  In file included from 241../src/s2/mutable_s2shape_index.h | :#30d:
eIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:n67e:
 /usr/local/clang/include/absl/container/internal/btree_container.ha:b522s:l3_:n owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull   522_ | N o nAnBuSlLl_
I      N| T                     ^E
RNAL_X(insert_or_assign, insert_or_assign_impl,In file included from  s2/s2hausdorff_distance_query.ccc:o20n:
sIn file included from t../src/s2/s2closest_edge_query.h :&34,:
 In file included from c../src/s2/s2closest_edge_query_base.ho:n32s:
tIn file included from  /usr/local/clang/include/absl/container/btree_set.h&:,65
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h  ^:
70:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h511::19852:
:In file included from  /usr/local/clang/include/absl/strings/str_cat.hnote: :expanded from macro 'ABSL_INTERNAL_X'116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:  23511:
 | /usr/local/clang/include/absl/strings/numbers.h : 351 : 55 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 ABS  L351_ | I N T E R N A L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) )      a b s l : : i n t 1 2 8 *   a b s l _ n o n\n
u      l| l                                                   ^ 
ou/usr/local/clang/include/absl/container/internal/common.ht:)32 :{9
:       | note:                                                       ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/base/nullability.h:   24132: | 22#:d enote: fineexpanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bIsFl__fnaolnsneu(lilf __sNaotninsuflile
d      ,|                       ^.
..) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                         In file included from  s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h:::525u:i30n:t 1warning: 2passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]8
*   a525b | s l _ n o n n u l l   o u t )   { 
       f| a                                                       ^l
se/usr/local/clang/include/absl/base/nullability.h,: 241t:r22u:e )note: ;expanded from macro 'absl_nonnull'

      |                                ^241
 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e496f:i9n:e  note: amacro 'ABSL_INTERNAL_X' defined hereb
sl_  n496o | n#nduelfli n_eN oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = /usr/local/clang/include/absl/container/internal/btree_container.ha:b531s:l3::: kwarning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
Pad)  
531       | |                          ^ 
ABS/usr/local/clang/include/absl/base/nullability.hL:_257I:N23T:E Rnote: Nexpanded from macro 'absl_nullable'A
L_  X257( | i#nsert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   tdreufei)n;e
       a| b                      ^s
l_/usr/local/clang/include/absl/container/internal/btree_container.hn:u496l:l9a:b lnote: emacro 'ABSL_INTERNAL_X' defined here 
_Nu  l496l | a#bdleef
i      n| e                      ^ 
ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   truIn file included from es2/s2hausdorff_distance_query.cc):;20
:
      In file included from | ../src/s2/s2closest_edge_query.h                  ~~~~~:
34:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2closest_edge_query_base.h::51132::
47In file included from :/usr/local/clang/include/absl/container/btree_set.h :note: 65expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70  :
511In file included from  | /usr/local/clang/include/absl/container/internal/layout.h : 198 :
  /usr/local/clang/include/absl/strings/str_cat.h : 398 : 24 :A Bwarning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_INTE  R398N | A L _AAlTpThRaINBuUmT(Ec_oCnAsPtT UcRhEaDr_*B Ya(btshli_sn)u)l)l a b l e   c _ s t r     / /   N O L I N T ( r u\n
t      i| m                                              ^~~~e
/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nul/usr/local/clang/include/absl/container/internal/btree_container.hl:a540b:l3e:  _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
llab  l540e | 
        | A                      ^B
SL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BIn file included from Ys2/s2max_distance_targets.cc(:t16h:
iIn file included from s../src/s2/s2max_distance_targets.h):)27,:
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21\:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                                   ^37
:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121::
9: /usr/local/clang/include/absl/log/internal/check_op.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here180
:42:    warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#defi  n180e |  AABBSSLL__AITNTTREIRBNUATIn file included from LEs2/s2hausdorff_distance_query.cc__:PI20UF:
R_In file included from Et../src/s2/s2closest_edge_query.h_r:Fu34Ue:
N(In file included from Ci../src/s2/s2closest_edge_query_base.hTf:I_32Os:
NaIn file included from  t/usr/local/clang/include/absl/container/btree_set.hc:oi65ns:
sfIn file included from ti/usr/local/clang/include/absl/container/internal/btree.he :cd70h,:
a In file included from r./usr/local/clang/include/absl/container/internal/layout.h*.:In file included from  .198s2/s2loop_measures.cca):
:b /usr/local/clang/include/absl/strings/str_cat.h18si::
lf501In file included from __:../src/s2/s2loop_measures.hns32:oa:34nt :
niwarning: In file included from ustype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2edge_crossings.hlf
:li 41e  M:
d501aIn file included from 
 | k../src/s2/s1chord_angle.h      veo:| Cih31        ^de :

cAIn file included from kpF../src/s2/s2pointutil.hpa:ein27ld:
In file included from ../src/s2/util/math/matrix3x3.hSPs2/s2loop.cc:tir:276eic18:neg:
5s(In file included from :(
../src/s2/s2loop.h s      :warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 34d
                                         ^:
:
:  sIn file included from 276t../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.h | r:: i30241 n:
: gIn file included from 22 */usr/local/clang/include/absl/container/btree_map.h:S : 2a67note: _b:
expanded from macro 'absl_nonnull'Cs/usr/local/clang/include/absl/container/internal/btree_container.h
Hl:E  C_546241Kn: | _o3#Nn:dEn ewarning: ('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ufld
eitl,n    ed546V ea | Tsb y tspAe,l
B(S_      n0L| o)_)                               ^nI N
n<T</usr/local/clang/include/absl/base/nullability.huE R": lN241ClA:a L22n__N:o'X nt( note: nexpanded from macro 'absl_nonnull'iinu
nsvl  lee241
rrt |       #s_| d                     ^eo.e
fr _iDaenstese iarIn file included from gbms2/s2max_distance_targets.ccnsi:,ln16 _a:
innIn file included from not../src/s2/s2max_distance_targets.hsn :en=27ru :
tl0In file included from _l.../src/s2/s1angle.ho ":r_;28_N
:
ao      In file included from sn| ../src/s2/s2point.hsn    ^:iu
25gl:
n../src/s2/base/logging.h_lIn file included from :i
../src/s2/util/coding/coder.h37m      ::p| 36                     ^21l:

:,In file included from   ../src/s2/base/casts.hnote: &expanded from macro 'S2_CHECK_NE':&
36,:
    In file included from 37c../src/s2/base/logging.h | o#:nd21set:
f In file included from i&/usr/local/clang/include/absl/log/check.hn,:e  37tS:
r2In file included from u_e/usr/local/clang/include/absl/log/internal/check_impl.hC,H:
E21      C:
| K/usr/local/clang/include/absl/log/internal/check_op.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_:
N181  E:547 25 | C :H  E warning: C Ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] _
 N E 
          181|                      ^ |   
   /usr/local/clang/include/absl/log/check.h   :c o120n s: t3t :ra ubnote: selexpanded from macro 'CHECK_NE':):
;S
  t      a120t|  | u                  ~~~~~s *
  aA/usr/local/clang/include/absl/container/internal/btree_container.hBb:sSl509L_:_n47oLn:On Gnote: _uexpanded from macro 'ABSL_INTERNAL_X'lI
NlT Es  tRa509tN | Au Ls ,_  Cc Ho nE sCt K  _ cN hEAa_BrI*S MLPa_bLsIl(_Nn(TovEnanRulNl1lA) Lp,r_e fA#iTvxaT)l;R1
I,      B | U(                        ^TvE
a_lC2/usr/local/clang/include/absl/base/nullability.hA)P:,T 241U#:Rv22Ea:Dl_ 2B)Ynote: 
expanded from macro 'absl_nonnull'(      
t| h  ^  i
241s | /usr/local/clang/include/absl/log/internal/check_impl.h#):d)e51f,:i n3 e:   a note:  bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' s
 l _    n51o n |  n  u  lA lB  S_ NL o_n nLu Ol Gl _
 I       N T| \E
R                     ^      N
| A                                              ^~~~L
_CHECK_O/usr/local/clang/include/absl/container/internal/btree_container.hPIn file included from :(s2/s2max_distance_targets.cc546C::h163e:
:cIn file included from  k../src/s2/s2max_distance_targets.hwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:N
27E/usr/local/clang/include/absl/container/internal/btree_container.h,:
: In file included from 511!../src/s2/s1angle.h:=:52,28: :
 vIn file included from note: aexpanded from macro 'ABSL_INTERNAL_X'../src/s2/s2point.hl
:125,  :
 511vIn file included from  | a ../src/s2/util/coding/coder.hl 1: _36 t :
e xIn file included from  t ../src/s2/base/casts.h,  : vAa36Bl:
S2LIn file included from ,_ ../src/s2/base/logging.hIv:NaT21lE2:
R_NIn file included from tAe/usr/local/clang/include/absl/log/check.hLx_:tA)37T
T:
      RIn file included from | I/usr/local/clang/include/absl/log/internal/check_impl.h  ^B:
U21T:
/usr/local/clang/include/absl/log/internal/check_op.hE/usr/local/clang/include/absl/log/internal/check_op.h:_:68C181:A:22P58:T: U note: Rwarning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D
_   B68Y   | ( 181t  | hw ih si ) lc)oe)n  s( tc  o an bss lt : : cS ht aat ru * s * a  ab bs sl l_ _n nu ol nl na ub\ll
le        s| taa                                                   ^bt
uss/usr/local/clang/include/absl/container/internal/common.hl,:_ 31lc:oo9gn:_s itnote: n macro 'ABSL_INTERNAL_IF_true' defined heretc
ehr   na31ar | l*#_ dcaehbfeiscnlke__n ooApnB_nSruLel_sIlu NplrTteE fR iN Ax )L; 
_        I | F                                                         ^ _ 
t r/usr/local/clang/include/absl/base/nullability.h\u
:e      241(| i:                     ^f22
_:s anote: texpanded from macro 'absl_nonnull'i
sf  i241e | d#,d/usr/local/clang/include/absl/base/nullability.h e:.f257.i:.n23)e:  a bnote: silexpanded from macro 'absl_nullable'_f
n_osnan  ut257il | sl# fd_ieNeofdnin
nu      el|  l        ^
a
b      s| l                     ^_
nullablIn file included from es2/s2loop.cc :_18N:
uIn file included from l../src/s2/s2loop.hl:a34b:
lIn file included from e../src/s2/mutable_s2shape_index.h
:      30| :
                      ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:In file included from 3s2/s2max_distance_targets.cc:: 16warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h  :54628 | :
 In file included from  ../src/s2/s2point.hA:B25S:
LIn file included from _../src/s2/util/coding/coder.hI:N36T:
EIn file included from R../src/s2/base/casts.hN:A36L:
_In file included from X../src/s2/base/logging.h(:i21n:
sIn file included from e/usr/local/clang/include/absl/log/check.hr:t37_:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.h_:a21s:
s/usr/local/clang/include/absl/log/internal/check_op.hi:g189n:In file included from ,28s2/s2loop_measures.cc ::i 18n:
warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from e
../src/s2/s2loop_measures.hr:t34_  :
o189In file included from rIn file included from  | ../src/s2/s2edge_crossings.h_s2/s2hausdorff_distance_query.cci:a:n41s20l:
s:
iIn file included from iIn file included from n../src/s2/s1chord_angle.hg../src/s2/s2closest_edge_query.he:n: 31_34c:
i:
oIn file included from mIn file included from n../src/s2/s2pointutil.hp../src/s2/s2closest_edge_query_base.hs:l:t27,32 :
 :
a../src/s2/util/math/matrix3x3.h&In file included from b:&/usr/local/clang/include/absl/container/btree_set.hs276,:l: 65c:5:
o::In file included from nS /usr/local/clang/include/absl/container/internal/btree.hstwarning: :tatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]70 t
:
&uIn file included from s../src/s2/base/logging.h,/usr/local/clang/include/absl/container/internal/layout.h*: : 37t198a:r:
b21u/usr/local/clang/include/absl/strings/str_cat.hs:le: _,635note: n
:expanded from macro 'S2_CHECK_NE'o      36
n| :n     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ u37l
warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#l  
d 547eA |   fs 635iS  | nt iea n t lSu i2s n_( eCc  Ho vEn oCs iKt d_   Na SEb s t l rC:tAH:rpESupCteeKa)n_t;dNu
(Es      s
&| t                         ~~~~~d| s
:                    ^): 
/usr/local/clang/include/absl/container/internal/btree_container.hs{:/usr/local/clang/include/absl/log/check.ht
511:r      :120i| n47:                           ^g:3
* : /usr/local/clang/include/absl/base/nullability.hnote:  expanded from macro 'ABSL_INTERNAL_X'a:bnote: 
expanded from macro 'CHECK_NE'241s
:  l22_511  :n | 120  o | n note:  n expanded from macro 'absl_nonnull' u 
Al   Bl 241S)  | L  #_{ dL} eO
AfG      Bi_| SnI                                   ^LeN
_ TaI/usr/local/clang/include/absl/base/nullability.hEbN:RsT241NlE:A_R22LnN:_oA CnLnote: Hn_expanded from macro 'absl_nonnull'EuA
ClTK  lT_241 RN | _#IENdoB_UenfITMniuEPnLl_e(lC (
Aav      Pba| Tsl                     ^Ul1
R_)En,Do _#nBvnYau(llt1hl,i  s_(N)v)oa)ln 2n u) l,l   
# v      In file included from  a | s2/s2max_distance_targets.cc                     ^l 2:
 ) 16
 :
       In file included from |    ^../src/s2/s2max_distance_targets.h 
 : /usr/local/clang/include/absl/log/internal/check_impl.h27 ::
 51In file included from  :../src/s2/s1angle.h 3:In file included from  :28s2/s2hausdorff_distance_query.cc   :
:note: \expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'In file included from 20

../src/s2/s2point.h:
      :In file included from    | 25../src/s2/s2closest_edge_query.h51                                              ^~~~:
: | 
In file included from 34 ../src/s2/util/coding/coder.h :
:AIn file included from 36B../src/s2/s2closest_edge_query_base.h:
S:LIn file included from 32_../src/s2/base/casts.h:
L:In file included from O36G/usr/local/clang/include/absl/container/btree_set.h:
_:In file included from I65../src/s2/base/logging.hN:
:TIn file included from 21E/usr/local/clang/include/absl/container/internal/btree.hR:
:NIn file included from 70A/usr/local/clang/include/absl/log/check.hL:
:_In file included from 37C/usr/local/clang/include/absl/container/internal/layout.hH:
:EIn file included from 198C/usr/local/clang/include/absl/log/internal/check_impl.hK:
:_/usr/local/clang/include/absl/strings/str_cat.h21O::
P636(/usr/local/clang/include/absl/log/internal/check_op.h:C:h29193e::c 21kwarning: _:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N E
,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]!  =
,636  | vv  ao193il | dc1 ,oSn tvsarltA1 pa_pbtesenldx:(/usr/local/clang/include/absl/container/internal/btree_container.ht:sSt:,t d550av::ta:24uls:s2t *warning: ,r passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] iva
nabg  ls2*550l_  | _ta neb oxs ntl n)_ u
n l      o l| n    ^n A
u sl/usr/local/clang/include/absl/log/internal/check_op.h Slt : adt75 eu: s s61t (:, c o  note: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'cfs
oatnl    sas75etb  | )sAl :;l :
SptA      haaB| tNuusS                       ^LmO
_&rL/usr/local/clang/include/absl/container/internal/btree_container.h <O:aT)G496>;_:&
 I9      sN:| )                            ^T E 
{note: /usr/local/clang/include/absl/base/nullability.hR
macro 'ABSL_INTERNAL_X' defined here:N      
241A| :  L                    ^22496_
C: | H# /usr/local/clang/include/absl/base/nullability.hEdCnote: :expanded from macro 'absl_nonnull'eK241
f(  :i:241:22n | a:e#b  dsnote: Aelexpanded from macro 'absl_nonnull'Bf:
Si:Li  n_m241eIpN |  lTiE#adcRibesNtfliA__nLcne_ao Xsna(tnbuF<scluloln_n cns_,otN n oCncnauhnllaullrle *le_ 
,Na       ob| Kns                     ^Qnl
uu_alnllo,
n n      Mu| Ql                     ^ulIn file included from 
a>s2/s2hausdorff_distance_query.ccl(:, 20  :
K In file included from V a../src/s2/s2closest_edge_query.h l\:u
34e      :
,| In file included from                                                              ^../src/s2/s2closest_edge_query_base.hM
:V32a:
/usr/local/clang/include/absl/base/nullability.hlIn file included from :u/usr/local/clang/include/absl/container/btree_set.h241e::,6522In file included from  :
:s2/s2max_distance_targets.cc.In file included from  :./usr/local/clang/include/absl/container/internal/btree.hnote: 16.:expanded from macro 'absl_nonnull':
)70
In file included from  :
../src/s2/s2max_distance_targets.h   In file included from :241 /usr/local/clang/include/absl/container/internal/layout.h27 |  #::
 d\e198In file included from 
f:
../src/s2/s1angle.h      i/usr/local/clang/include/absl/strings/str_cat.h:| n:28        ^e637:

 :aIn file included from 29b../src/s2/s2point.hs::l _25nwarning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oIn file included from 
n../src/s2/util/coding/coder.hn:u  36l637l:
  | In file included from _vN../src/s2/base/casts.hoo:in36ndu:
l lIn file included from 
S../src/s2/base/logging.ht      :r| 21                     ^A:
p
In file included from p/usr/local/clang/include/absl/log/check.he:n37d:
(In file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:d21::
:/usr/local/clang/include/absl/log/internal/check_op.hs:t202r:i46n:g *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n202o | n n uelxlp ldiecsitt,  CchoencsktO pAMlepshsaaNguemB&u ial,d
e      r| (                            ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l/usr/local/clang/include/absl/container/internal/btree_container.h | _#n:doe549nfn:iu3nl:el   awarning: ebpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]xsp
lr_tne  oxn549tn) | u ;l
 l       A| _                                             ^BN
SoL/usr/local/clang/include/absl/base/nullability.hn_:nI241uN:lT22lE:R
 Nnote:       expanded from macro 'absl_nonnull'A| 
                     ^L
  _241X | (#idnesfeirnte_ oarb_saIn file included from lss2/s2hausdorff_distance_query.cc_s:ni20og:
nnIn file included from n,../src/s2/s2closest_edge_query.hu :li34ln:
 sIn file included from _e../src/s2/s2closest_edge_query_base.hNr:ot32n_:
noIn file included from ur/usr/local/clang/include/absl/container/btree_set.hl_:la65
s:
      sIn file included from | i/usr/local/clang/include/absl/container/internal/btree.h                     ^g:
n70_:
iIn file included from m/usr/local/clang/include/absl/container/internal/layout.hp:l198,:
 /usr/local/clang/include/absl/strings/str_cat.h&:&639,: 29&:& ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
alse  ,639
 |       v| o  ^i
d /usr/local/clang/include/absl/container/internal/btree_container.hS:t509r:A52pIn file included from :ps2/s2max_distance_targets.cce :nnote: 16expanded from macro 'ABSL_INTERNAL_X'd:

(In file included from s../src/s2/s2max_distance_targets.ht:  d27509::
 | :In file included from  s../src/s2/s1angle.h t:r 28i :
n In file included from g ../src/s2/s2point.h* :  25a :
b In file included from sA../src/s2/util/coding/coder.hlB:_S36nL:
o_In file included from nI../src/s2/base/casts.hnN:uT36lE:
lRIn file included from  N../src/s2/base/logging.hdA:eL21s_:
tA,In file included from T /usr/local/clang/include/absl/log/check.hTc:Ro37nI:
sBIn file included from tU/usr/local/clang/include/absl/log/internal/check_impl.h T:AE21l_:
Cp/usr/local/clang/include/absl/log/internal/check_op.hAh:Pa209TN:uU15mR:&E  Dwarning: a_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],B

Y      (  | t209                            ^h | 
i s /usr/local/clang/include/absl/base/nullability.hc):o)241n,:s 22t :   c note: hexpanded from macro 'absl_nonnull' a
r *     241a  | b# sdl e_ fn ion nen  u al bls  lN _e nwo S nt nru iln\lg
 (      _)N;| o
                                                   ^n      n
| u              ^l
/usr/local/clang/include/absl/container/internal/common.hl:/usr/local/clang/include/absl/base/nullability.h
32:      :241| 9:                     ^:22
 :note:  macro 'ABSL_INTERNAL_IF_false' defined here
note: expanded from macro 'absl_nonnull'
   32 |   #241d | e#fdienfei nAeB In file included from Sas2/s2hausdorff_distance_query.ccLb:s_20lI:
_NIn file included from nT../src/s2/s2closest_edge_query.hoE:nR34nN:
uAIn file included from lL../src/s2/s2closest_edge_query_base.hl_: I32_F:
N_In file included from of/usr/local/clang/include/absl/container/btree_set.hna:nl65us:
leIn file included from l(/usr/local/clang/include/absl/container/internal/btree.h
i:f      70_| :
                     ^sIn file included from 
a/usr/local/clang/include/absl/container/internal/layout.ht:i198s:
f/usr/local/clang/include/absl/strings/str_cat.hi:e641d:,29 :. .warning: .type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 __V  A641_ | AvRoGiSd_ _S
t      r| A        ^p
pend(std::stringIn file included from *s2/s2loop.cc :a18b:
sIn file included from l../src/s2/s2loop.h_:n34o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from d/usr/local/clang/include/absl/container/btree_map.he:s67t:
,/usr/local/clang/include/absl/container/internal/btree_container.h :c549o:n3s:t  warning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
pha  N549u | m &  AaB,S
L      _| I                            ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:X (note: iexpanded from macro 'absl_nonnull'n
se  r241t | _#odre_faisnseiIn file included from  gs2/s2max_distance_targets.ccna:b,16s :
liIn file included from _n../src/s2/s2max_distance_targets.hns:oe27nr:
ntIn file included from u_../src/s2/s1angle.hlo:lr28 _:
_aIn file included from Ns../src/s2/s2point.hos:ni25ng:
unIn file included from _l../src/s2/util/coding/coder.hil:
m36      p:
| lIn file included from                      ^,../src/s2/base/casts.h
 :&36&:
,In file included from  ../src/s2/base/logging.h&:&21,:
 In file included from f/usr/local/clang/include/absl/log/check.ha:l37s:
eIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| In file included from :
  ^s2/s2hausdorff_distance_query.cc/usr/local/clang/include/absl/log/internal/check_op.h
::20226/usr/local/clang/include/absl/container/internal/btree_container.h:
::In file included from 59511../src/s2/s2closest_edge_query.h::: 5234warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 
In file included from note: ../src/s2/s2closest_edge_query_base.hexpanded from macro 'ABSL_INTERNAL_X':
  32226:
 | In file included from   v/usr/local/clang/include/absl/container/btree_set.ho511:i | 65d :
  In file included from M /usr/local/clang/include/absl/container/internal/btree.ha :k 70e :
C In file included from h /usr/local/clang/include/absl/container/internal/layout.he :c 198kA:
OB/usr/local/clang/include/absl/strings/str_cat.hpS:VL646a_:lI36uN:eTS Etwarning: rRtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iN
nAgL  (_646sA | tiTdn:Tl:iRonsIetB rUveToaiEmd&_  SCotsAr,PA TpcUpoRennEsdDt( _svBtodYi:d:(*s ttahrbiisnlsg_)*n) u)al bls alb _ln eo  npn )u ;l
 l         | d                                                          ^ e 
s t /usr/local/clang/include/absl/base/nullability.h, :  257c :o 23n :s  t note:  expanded from macro 'absl_nullable' A
l p   h\257a
 | N      #u| dme                                                   ^&f 
ian,/usr/local/clang/include/absl/container/internal/common.he
 :      a32| b                                   ^:s
l9_/usr/local/clang/include/absl/base/nullability.hn::u 241lnote: :lmacro 'ABSL_INTERNAL_IF_false' defined here22a
:b l   note: e32expanded from macro 'absl_nonnull'  | 
_#  Nd241ue | lf#ldiaebnflieen
 e      A | aB                      ^bS
sLl__InNoTnEnRuNlAlL __INFo_nfnaullsle
(      i| f                     ^_
satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&,In file included from  s2/s2max_distance_targets.ccf:a16l:
sIn file included from e../src/s2/s2max_distance_targets.h,: 27t:
rIn file included from u../src/s2/s1angle.he:)28;:

In file included from       ../src/s2/s2point.h| :                                                                              ^25
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/util/coding/coder.h::49636::
9In file included from :../src/s2/base/casts.h :note: 36macro 'ABSL_INTERNAL_X' defined here:

In file included from ../src/s2/base/logging.h:21  :
496In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
A/usr/local/clang/include/absl/log/internal/check_op.hB:S276L:_13I:N Twarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
NAL  _276X | (cFounnsct,  vCoaildl*e ea,b sKlQ_unaull,l aMbQluea lo,p eKrVaatloure<,< (MsVtadl:u:eo,s t.r.e.a)m & , 
        | \            ^

      |         ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                             /usr/local/clang/include/absl/container/internal/btree_container.h : 551 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
cons  t551  | v o iAdB*S La_bIsNlT_EnRuNlAlLa_bXl(ei nvsaelrute_)o;r
_      a| s                                                 ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,257 :i23n:s enote: rexpanded from macro 'absl_nullable't
_o  r257_ | a#sdseifginn_ei mapbls,l _&n&u,l l&a&b,l ef a_lNsuel,l atbrluee
)      ;| 
                      ^      
|   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |     In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.hA:B27S:
LIn file included from _../src/s2/s1angle.hI:N28T:
EIn file included from R../src/s2/s2point.hN:A25L:
_In file included from A../src/s2/util/coding/coder.hT:T36R:
IIn file included from B../src/s2/base/casts.hU:T36E:
_In file included from C../src/s2/base/logging.hA:P21T:
UIn file included from R/usr/local/clang/include/absl/log/check.hE:D37_:
BIn file included from Y/usr/local/clang/include/absl/log/internal/check_impl.h(:t21h:
i/usr/local/clang/include/absl/log/internal/check_op.hs:)278):,13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      278  |  c o n s t   v o i d *   a b\s
l      _| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.ha:b32l:e9 :o pnote: emacro 'ABSL_INTERNAL_IF_false' defined herer
ato   r32< | <#(dsetfdi:n:eo sAtBrSeLa_mI&N,T EsRtNdA:L:_nIuFl_lfpatlrs_et()i;f
_      s| a            ^t
is/usr/local/clang/include/absl/base/nullability.hf:i257e:d23,:  .note: .expanded from macro 'absl_nullable'.
)   _257_ | V#Ad_eAfRiGnSe_ _a
b      s| l        ^_
nullable _In file included from Ns2/s2loop.ccu:l18l:
aIn file included from b../src/s2/s2loop.hl:e34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                      ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52In file included from :s2/s2max_distance_targets.cc :note: 16expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2max_distance_targets.h:27  :
511In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.hA:B36S:
LIn file included from _../src/s2/base/casts.hI:N36T:
EIn file included from R../src/s2/base/logging.hN:A21L:
_In file included from A/usr/local/clang/include/absl/log/check.hT:T37R:
IIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hU:T21E:
_/usr/local/clang/include/absl/log/internal/check_op.hC:A292P:T13U:R Ewarning: Dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
BY(t  h292i | sc)o)n)s t   c h a r *   a b s l _ n o n n u l l   o p e\r
a      t| o                                                   ^r
<</usr/local/clang/include/absl/container/internal/common.h(:s31t:d9::: bnote: amacro 'ABSL_INTERNAL_IF_true' defined heres
ic_   o31s | t#rdeeafmi<nceh aArB,S LT_rIaNiTtEsR>N&A,L
_      I| F            ^_
tr/usr/local/clang/include/absl/base/nullability.hu:e241(:i22f:_ snote: aexpanded from macro 'absl_nonnull't
is  f241i | e#dd,e f.i.n.e)  aibfs_ls_antoinsnfuileld 
_      N| o        ^n
null
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.hIn file included from :s2/s2max_distance_targets.cc34::
16In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2max_distance_targets.h30::
27In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s1angle.h67::
28/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 551../src/s2/s2point.h::325::
 In file included from warning: ../src/s2/util/coding/coder.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
36:
In file included from ../src/s2/base/casts.h:36:
In file included from   ../src/s2/base/logging.h551: | 21 :
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:A293L:_49X:( iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ert  _293o | r _ a s s i g n ,   i n s e r t _ o r _ a s s i g n _ i m p l ,   & & ,  c&o&n,s tf aclhsaer,*  tarbusel)_;n
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll)/usr/local/clang/include/absl/container/internal/btree_container.h;:
511      :| 47                                                ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X':
241:22:   511note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f iAnBeS La_bIsNlT_EnRoNnAnLu_lAlT T_RNIoBnUnTuEl_lC
A      P| T                     ^U
RED_BY(this)))          In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
\In file included from 
../src/s2/s2point.h      :| 25                                              ^~~~:

In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #def/usr/local/clang/include/absl/container/internal/btree_container.hi:n552e: 79a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
nonn  u552l | l   _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_X(insert_or_assiIn file included from gs2/s2max_distance_targets.ccn:,16 :
iIn file included from n../src/s2/s2max_distance_targets.hs:e27r:
tIn file included from _../src/s2/s1angle.ho:r28_:
aIn file included from s../src/s2/s2point.hs:i25g:
nIn file included from _../src/s2/util/coding/coder.hi:m36p:
lIn file included from ,../src/s2/base/casts.h :&36&:
,In file included from  ../src/s2/base/logging.h&:&21,:
 In file included from t/usr/local/clang/include/absl/log/check.hr:u37e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hf:a21l:
s/usr/local/clang/include/absl/log/internal/check_op.he:)296;:
63      :|                                                                                ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:496:  9296: |   note:  macro 'ABSL_INTERNAL_X' defined here 
      496  |  # d e f i n e   A B S L _ I N T E R N A L _ X ( F u n c ,   C a l l eceo,n sKtQ usailg,n eMdQ ucahla,r *K Vaablsule_,n oMnVnaullule),; 
.      .| .                                                              ^)
     \
      |         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:552:3:   298warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
onst   552u | n s iAgBnSeLd_ IcNhTaErR*N AaLb_sXl(_innosnenrutl_lo ro_paesrsaitgonr,< <i(nsstedr:t:_boars_iacs_soisgtnr_eiammp<lc,h a&r&,,  T&r&a,i ttsr>u&e,,
       f| a                     ^l
se/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.h
:509  :24152 | :# dnote: eexpanded from macro 'ABSL_INTERNAL_X'f
ine   509a | b s l _ n o n n u l lA B_SNLo_nInNuTlElR
N      A| L                     ^_
ATTRIBUTE_CAPTUREDIn file included from _s2/s2max_distance_targets.ccB:Y16(:
tIn file included from h../src/s2/s2max_distance_targets.hi:s27):
)In file included from ,../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from \/usr/local/clang/include/absl/log/check.h
:      37| :
                                                   ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/container/internal/common.h:
:/usr/local/clang/include/absl/log/internal/check_op.h31::2999::67 :note:  macro 'ABSL_INTERNAL_IF_true' defined here
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   31 | #  d299e | f i n e   A B S L _ I N T E R N A L _ I F _ t r u e ( i f _ s a t i s f i e d ,   . . . )  ciofn_ssta tuinssfiigende
d       | c        ^h
ar* absl_nonnull)In file included from ;s2/s2loop.cc
:      18| :
                                                                  ^In file included from 
../src/s2/s2loop.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :../src/s2/mutable_s2shape_index.h22::30 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/btree_map.h
:67  :
241/usr/local/clang/include/absl/container/internal/btree_container.h | :#552d:e3f:i nwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
absl_n  o552n | n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_In file included from As2/s2max_distance_targets.ccT:T16R:
IIn file included from B../src/s2/s2max_distance_targets.hU:T27E:
_In file included from C../src/s2/s1angle.hA:P28T:
UIn file included from R../src/s2/s2point.hE:D25_:
BIn file included from Y../src/s2/util/coding/coder.h(:t36h:
iIn file included from s../src/s2/base/casts.h):)36):
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 323 : 46 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                                                    ^
  323/usr/local/clang/include/absl/container/internal/common.h | : 32 :f9r:i enote: nmacro 'ABSL_INTERNAL_IF_false' defined hered
 vo   i32d |  #AdbesfliFnoer mAaBtSFLl_uIsNhT(ESRtNrAiLn_gIiFf_yfSailnske*( iafb_ssla_tniosnfniueldl,  s.i.n.k), 
_      _| V                                             ^A
_AR/usr/local/clang/include/absl/base/nullability.hG:S241_:_22
:       | note:         ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.ccIn file included from :s2/s2max_distance_targets.cc18::
16In file included from :
../src/s2/s2loop.hIn file included from :../src/s2/s2max_distance_targets.h34::
27In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s1angle.h30::
28In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s2point.h67::
25/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 553../src/s2/util/coding/coder.h::336::
 In file included from warning: ../src/s2/base/casts.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
36:
In file included from ../src/s2/base/logging.h:21:
  In file included from 553/usr/local/clang/include/absl/log/check.h | : 37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21:
_/usr/local/clang/include/absl/log/internal/check_op.hI:N428T:E44R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
X(in  s428e | rAtB_SoLr__AaTsTsRiIgBnU,T Ei_nRsEeTrUtR_NoSr__NaOsNsNiUgLnL_ icmopnls,t  &c&h,a r&*& ,a btsrlu_en,o ntnruulel) ;M
a      k| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~C
hec/usr/local/clang/include/absl/container/internal/btree_container.hk:O509p:S47t:r inote: nexpanded from macro 'ABSL_INTERNAL_X'g
(
      |                                              ^509
 |   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBoUnTnEu_lClA P_TNUoRnEnDu_lBlY
(      t| h                     ^i
s)),       In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h :\25
:
      In file included from | ../src/s2/util/coding/coder.h                                              ^~~~:
36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/container/internal/btree_container.h21::
553In file included from :/usr/local/clang/include/absl/log/check.h3::37 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/internal/check_impl.h
:21/usr/local/clang/include/absl/container/internal/btree_container.h:
:/usr/local/clang/include/absl/log/internal/check_op.h511::42952::31 :note:  expanded from macro 'ABSL_INTERNAL_X'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  511 |     429  |          T 1  AvB1S,L _TI2N TvE2R,N AcLo_nAsTtT RcIhBaUrT*E _aCbAsPlT_UnRoEnDn_uBlYl( tehxipsr)t)e)x t )   A B S L _ A T T R I B U T E _ N O I N L I\N
E      ;| 
                                                   ^      
|                               ^/usr/local/clang/include/absl/container/internal/common.h
:31/usr/local/clang/include/absl/base/nullability.h::9241:: 22note: :macro 'ABSL_INTERNAL_IF_true' defined here 
note: expanded from macro 'absl_nonnull'
   31 |   #241d | e#fdienfei nAeB SaLb_sIlN_TnEoRnNnAuLl_lI F__Ntornuneu(lilf
_      s| a                     ^t
isfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:16In file included from :
s2/s2loop.ccIn file included from :../src/s2/s2max_distance_targets.h18::
27In file included from :
../src/s2/s2loop.hIn file included from :../src/s2/s1angle.h34::
28In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2point.h30::
25In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/util/coding/coder.h67::
36/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 553../src/s2/base/casts.h::336::
 In file included from warning: ../src/s2/base/logging.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 553/usr/local/clang/include/absl/log/internal/check_impl.h | : 21 :
A/usr/local/clang/include/absl/log/internal/check_op.hB:S432L:_13I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL  _432X | (cionnssetr tc_hoarr_*a sasbisgln_,n oinnnsuelrlt _Moark_eaCshseicgknO_piSmtprli,n g&(&T,1  &v&1,,  tTr2u ev,2 ,t
r      u| e            ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
:22:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 511expanded from macro 'absl_nonnull':
47:   note: 241expanded from macro 'ABSL_INTERNAL_X' | 
#de  f511i | n e   a b s l _ n o nAnBuSlLl_ I_NNToEnRnNuAlLl_
A      T| T                     ^R
IBUTE_CAPIn file included from Ts2/s2max_distance_targets.ccU:R16E:
DIn file included from _../src/s2/s2max_distance_targets.hB:Y27(:
tIn file included from h../src/s2/s1angle.hi:s28):
)In file included from )../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from \/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                              ^~~~/usr/local/clang/include/absl/log/internal/check_op.h
:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAIn file included from Ls2/s2max_distance_targets.cc_:X16(:
iIn file included from n../src/s2/s2max_distance_targets.hs:e27r:
tIn file included from _../src/s2/s1angle.ho:r28_:
aIn file included from s../src/s2/s2point.hs:i25g:
nIn file included from ,../src/s2/util/coding/coder.h :i36n:
sIn file included from e../src/s2/base/casts.hr:t36_:
oIn file included from r../src/s2/base/logging.h_:a21s:
sIn file included from i/usr/local/clang/include/absl/log/check.hg:n37_:
hIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:t21_:
i/usr/local/clang/include/absl/log/internal/check_op.hm:p451l:,1 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t &  ,451
 |       A| B  ^S
L_/usr/local/clang/include/absl/container/internal/btree_container.hL:O509G:_52I:N Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'R
NAL  _D509E | F I N E _ M A K E _ CAHBESCLK__IONPT_ESRTNRAILN_GA_TETXRTIEBRUNT(Eb_oCoAlP)T;U
R      E| D^_
BY(/usr/local/clang/include/absl/log/internal/check_op.ht:h449i:s31):) ,note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
      449  |      e x t e r n   t e m p l a t e\ 
c      o| n                                                   ^s
t c/usr/local/clang/include/absl/container/internal/common.hh:a32r:*9 :a bnote: smacro 'ABSL_INTERNAL_IF_false' defined herel
_n   o32n | n#udlelf iMnaek eACBhSeLc_kIONpTSEtRrNiAnLg_(I F _ f\a
l      s| e                              ^(
if/usr/local/clang/include/absl/base/nullability.h_:s241a:t22i:s fnote: iexpanded from macro 'absl_nonnull'e
d,   241. | .#.d)e f_i_nVeA _aAbRsGlS__n_o
n      n| u        ^l
l _Nonnull
In file included from       s2/s2loop.cc| :                     ^18
:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.hs2/s2max_distance_targets.cc::6716:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2max_distance_targets.h555::273:
:In file included from  ../src/s2/s1angle.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]28
:
In file included from ../src/s2/s2point.h:  25555:
 | In file included from  ../src/s2/util/coding/coder.h :A36B:
SIn file included from L../src/s2/base/casts.h_:I36N:
TIn file included from E../src/s2/base/logging.hR:N21A:
LIn file included from _/usr/local/clang/include/absl/log/check.hX:(37i:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.he:r21t:
_/usr/local/clang/include/absl/log/internal/check_op.ho:r451_:a1s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
, /usr/local/clang/include/absl/log/internal/check_op.hi:n450s:e25r:t _note: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'r
_a  s450s | i g n _ h i nxt,_ ixm,p lc,o ncsotn scth a&r,*
       a| b  ^s
l_/usr/local/clang/include/absl/container/internal/btree_container.hn:o511n:n52u:l lnote: )expanded from macro 'ABSL_INTERNAL_X'

      |                         ^
  511/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lA_TnToRnInBuUlTlE __CNAoPnTnUuRlElD
_      B| Y                     ^(
this)))                        \
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2max_distance_targets.cc::3216::
9In file included from :../src/s2/s2max_distance_targets.h :note: 27macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from ../src/s2/s1angle.h:   2832:
 | In file included from #../src/s2/s2point.hd:e25f:
iIn file included from n../src/s2/util/coding/coder.he: 36A:
BIn file included from S../src/s2/base/casts.hL:_36I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:I37F:
_In file included from f/usr/local/clang/include/absl/log/internal/check_impl.ha:l21s:
e/usr/local/clang/include/absl/log/internal/check_op.h(:i452f:_1s:a twarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
fie  d452, |  A.B.S.L)_ L_O_GV_AI_NATREGRSN_A_L
_      D| E        ^F
INE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.hIn file included from :s2/s2max_distance_targets.cc34::
16In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2max_distance_targets.h30::
27In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s1angle.h67::
28:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2point.h558::253:
:In file included from  ../src/s2/util/coding/coder.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]36
:
In file included from ../src/s2/base/casts.h:36  :
558In file included from  | ../src/s2/base/logging.h : 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
A/usr/local/clang/include/absl/log/internal/check_op.hL:_452X:(1i:n swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
t_/usr/local/clang/include/absl/log/internal/check_op.ho:r450_:a25s:s inote: gexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
,   i450n | s e r t _ o rx_,a sxs,i gcno_nhsitn tc_hiamrp*l ,a bcsoln_snto n&n,u
l      l| )  ^

      |                         ^/usr/local/clang/include/absl/container/internal/btree_container.h
:509:/usr/local/clang/include/absl/base/nullability.h52::241 :note: 22expanded from macro 'ABSL_INTERNAL_X':
 note: expanded from macro 'absl_nonnull'  
509 |    241  |  # d e f i n e  AaBbSsLl__InNoTnEnRuNlAlL __ANToTnRnIuBlUlT
E      _| C                     ^A
PTURED_BY(this)),          In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
\In file included from 
../src/s2/s2point.h      :| 25                                                   ^:

In file included from ../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/container/internal/common.h36::
32In file included from :../src/s2/base/casts.h9::36 :
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here../src/s2/base/logging.h
:21:
   In file included from 32/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.hA:B453S:L1_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L453_ | IAFB_SfLa_lLsOeG(_iIfN_TsEaRtNiAsLf_iDeEdF,I N.E._.M)A K_E__VCAH_EACRKG_SO_P__
S      T| R        ^I
NG_EXTERIn file included from Ns2/s2loop.cc(:u18i:
nIn file included from t../src/s2/s2loop.h6:434_:
tIn file included from )../src/s2/mutable_s2shape_index.h;:
30      :
| In file included from ^/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::449558::313::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

    449558 |  |     eAxBtSeLr_nI NtTeEmRpNlAaLt_eX (cionnIn file included from sss2/s2memory_tracker.ccet:r 18tc:
_hIn file included from oa../src/s2/s2memory_tracker.hrr:*_27 aa:
bsIn file included from ssl/usr/local/clang/include/absl/strings/str_format.h_i:ngo84nn:
n,In file included from u l/usr/local/clang/include/absl/strings/internal/str_format/bind.hil:n 29sM:
ae/usr/local/clang/include/absl/strings/internal/str_format/parser.hrk:te227_C:hoe11crk:_O apwarning: Sst'enable_if' is a clang extension [-Wgcc-compat]rsi
inggn  (_227 h |  i  n \t
 _       i | m                               ^p 
l ,/usr/local/clang/include/absl/base/nullability.h  : c241eo:nn22asb:tl  e&_note: ,expanded from macro 'absl_nonnull'i
f
      (|   s  ^241t
 | r#/usr/local/clang/include/absl/container/internal/btree_container.h_d:fe511of:ri52nm:ea  tanote: b_sexpanded from macro 'ABSL_INTERNAL_X'li
_nnto  en511rn | nu lal  l_ :N :o En nn usl l u 
rAe      BC| S                     ^oLn
_sItNeTxEpRrN(AfLIn file included from o_s2/s2max_distance_targets.ccrA:mT16aT:
tRIn file included from )I,../src/s2/s2max_distance_targets.hB
:U      27T| :
E          ^In file included from _
../src/s2/s1angle.hC:A28P:
TIn file included from U/usr/local/clang/include/absl/strings/internal/str_format/parser.h../src/s2/s2point.hR:E:229D25:_:
11BIn file included from :Y../src/s2/util/coding/coder.h (:warning: t'enable_if' is a clang extension [-Wgcc-compat]36h
:
iIn file included from s  )../src/s2/base/casts.h229): | ) 36   :
   In file included from   ../src/s2/base/logging.h  :  21   :
   In file included from  e/usr/local/clang/include/absl/log/check.h n: a37 b:
 l In file included from e _/usr/local/clang/include/absl/log/internal/check_impl.h i: f21 (:
 s/usr/local/clang/include/absl/log/internal/check_op.h t :r 453_ f:\o1
r:      m | a                                                   ^warning: t
_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/common.hi
:n31/usr/local/clang/include/absl/log/internal/check_op.ht:e:9r450:n: a25note: lmacro 'ABSL_INTERNAL_IF_true' defined here::
: V   anote: 31lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | i#
ddFe  ofr450im | na e t  I Am Bp SlxL<,_C Ix.N.,T. E>cR(oNfnAosLtr_m IacFth_a)tr,r
*u       ea| (b          ^is
fl__snaotninsuflile)d
      ,|                          ^.
../usr/local/clang/include/absl/base/nullability.h): 241i:f22_:s anote: texpanded from macro 'absl_nonnull'i
sf  i241e | d#
d      e| f        ^i
ne absl_nonnullIn file included from  s2/s2loop.cc_:N18o:
nIn file included from n../src/s2/s2loop.hu:l34l:

In file included from       ../src/s2/mutable_s2shape_index.h| :                     ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAIn file included from Ls2/s2max_distance_targets.cc_:X16(:
iIn file included from n../src/s2/s2max_distance_targets.hs:e27r:
tIn file included from _../src/s2/s1angle.ho:r28_:
aIn file included from s../src/s2/s2point.hs:i25g:
nIn file included from ,../src/s2/util/coding/coder.h :i36n:
sIn file included from e../src/s2/base/casts.hr:t36_:
oIn file included from r../src/s2/base/logging.h_:a21s:
sIn file included from i/usr/local/clang/include/absl/log/check.hg:n37_:
hIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:t21_:
i/usr/local/clang/include/absl/log/internal/check_op.hm:p454l:,1 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t &  ,454
 |       A| B  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~S
L_  L559O | G _ I N T E R N A L _ D E F I N E _ McAoKnEs_tC H&E,C Kf_aOlPs_eS,T RtIrNuGe_,E
X      T| E                  ~~~~~~~~~~~~~~~~~~~~~R
N(  f560l | o a t ) ; 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449 : 31 :   note: cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
nst  _449i | t e reaxttoerr(nh itnetm)p lAaBtSeL _cIoNnTsEtR NcAhLa_rC*O MaMbAs)l;_
n      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ull/usr/local/clang/include/absl/container/internal/btree_container.h :M511a:k47e:C hnote: eexpanded from macro 'ABSL_INTERNAL_X'c
kOp  S511t | r i n g (       \ 
       A| B                              ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
AT  T241R | I#BdUeTfEi_nCeA PaTbUsRlE_Dn_oBnYn(utlhli s_)N)o)n n u l l 
        |                       ^ 
      In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
\In file included from 
../src/s2/s1angle.h      :| 28                                              ^~~~:

In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_SIn file included from Ts2/s2memory_tracker.ccR/usr/local/clang/include/absl/container/internal/btree_container.h:I:18N561:
G:In file included from _3../src/s2/s2memory_tracker.hE::X 27Twarning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]EIn file included from 
R/usr/local/clang/include/absl/strings/str_format.hN:  (84d561:
o | u/usr/local/clang/include/absl/strings/internal/str_format/bind.h b:l 143Ae:)B11;S:
L       _warning: I'enable_if' is a clang extension [-Wgcc-compat]| N^
T
ER/usr/local/clang/include/absl/log/internal/check_op.h  N:143A449 | L :_ X31 ( :i  n snote:  eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' r
 t _  eon449ra | _b al seesx_itigfen(r,ns t itrne_msfpeolrratmt_aeo trc__oiannssttse ircgnnha_lah:ri:*n Eatbn_ssiulm_rnpeolCn,on nucslotln eMsxatpk re&(C,sh
)e      c,| k   ^"O
pcS/usr/local/clang/include/absl/container/internal/btree_container.hot:nr509si:tn52ge:x( p note: rexpanded from macro 'ABSL_INTERNAL_X'   
\t
r  a      509p|  | "                               ^) ,
 
 /usr/local/clang/include/absl/base/nullability.h       :|            ^241 
: 22 :  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eA TaTbRsIlB_UnToEn_nCuAlPl/usr/local/clang/include/absl/strings/internal/str_format/bind.hT :U_149RN:Eo22Dn:_n Buwarning: Y'enable_if' is a clang extension [-Wgcc-compat]l(l
t
h      i  s| 149                     ^) | )
 ,         In file included from  _ s2/s2max_distance_targets.cc_ a: t 16t :
r iIn file included from  b../src/s2/s2max_distance_targets.h u: t 27e :
_ _In file included from  (../src/s2/s1angle.h (: e28 n:
 a In file included from b ../src/s2/s2point.hl\e
_:      i25| f:
                                                   ^(In file included from 
s../src/s2/util/coding/coder.ht:/usr/local/clang/include/absl/container/internal/common.hr36:_:
31fIn file included from :o../src/s2/base/casts.h9r::m36 a:
note: tmacro 'ABSL_INTERNAL_IF_true' defined hereIn file included from _
i../src/s2/base/logging.hn   :t31e21 | r#:
ndaIn file included from el/usr/local/clang/include/absl/log/check.hf::i:n37Ee:
n sIn file included from Au/usr/local/clang/include/absl/log/internal/check_impl.hBrS:eLC21_o:
I/usr/local/clang/include/absl/log/internal/check_op.hnNs:Tt455EeR:xN1pAr:L( _swarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])F,
_
/usr/local/clang/include/absl/log/internal/check_op.ht      r:| u                     ^450e
:(25i:f _note: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
ti  s450f | i e d ,   . .x.,)  xi,f _c/usr/local/clang/include/absl/strings/internal/str_format/bind.hso:na158ts:ti 22cs:hf airwarning: *e 'enable_if' is a clang extension [-Wgcc-compat]da
b
s      l  | _158n        ^ | o
 n n u l l )_
_      a| t                        ^t
In file included from r/usr/local/clang/include/absl/base/nullability.hs2/s2loop.cci::b24118u::
t22In file included from e:../src/s2/s2loop.h_ :_note: 34expanded from macro 'absl_nonnull'(:
(
In file included from e../src/s2/mutable_s2shape_index.hn  :a24130b | :
l#In file included from ed/usr/local/clang/include/absl/container/btree_map.h_e:fii67fn:
e/usr/local/clang/include/absl/container/internal/btree_container.h( :Va561ab:ls3il:d_ nwarning: F'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]oon
rnmual  tl561I  | m_ pN loA<nBnAuSrlLgl_sI
.N.      T.| E>                     ^R(N
sA)L,_ X"(biands efrotr_moart_ atsrsaipg"nIn file included from ),)s2/s2max_distance_targets.cc ):i
16n      :
s| In file included from e                     ^../src/s2/s2max_distance_targets.hr
:t27_:
oIn file included from r../src/s2/s1angle.h_:a28s:
sIn file included from i../src/s2/s2point.hg:n25_:
hIn file included from i../src/s2/util/coding/coder.hn:t36_:
iIn file included from m../src/s2/base/casts.hp:l36/usr/local/clang/include/absl/strings/internal/str_format/bind.h,:
: In file included from 162c../src/s2/base/logging.h:o:22n21:s:
 tIn file included from warning:  'enable_if' is a clang extension [-Wgcc-compat]/usr/local/clang/include/absl/log/check.h&
,:
37        :
| 162  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from  | 
 /usr/local/clang/include/absl/log/internal/check_impl.h   :562 21 |  :
  /usr/local/clang/include/absl/log/internal/check_op.h  : _ 456_ :a t1 t: r  i warning: b utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] t
 e _ _   (456 ( |  eAcBnoaSnbLs_lteL _&Oi,Gf _(tIVrNaulTeEiR,dN FAfoLar_lDmEsaFetI,NI
Em      _pM| AlK                  ~~~~~~~~~~~~~~~~~~~~~<E
A_rC  Hg563EsC | K._ O.P . _> S( TsR I)N ,G  _ E"X bT aE dR  N (fc oh ra rm) ;a
cto       nt| sr^ta
_pi/usr/local/clang/include/absl/log/internal/check_op.h"t):e)449r):a
31t      :o|  r                     ^(note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'h
int  )449  | A B SeLx_tIeNrTnE RtNeAmLp_lCaOtMeM Ac)o;n
s      t|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
har/usr/local/clang/include/absl/container/internal/btree_container.h*: 509a:b47s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l509l |   M a k e C h e c k OApBSStLr_iIng(  N T\E
R      N| A                              ^L
_A/usr/local/clang/include/absl/base/nullability.hT:T241R:I22B:U Tnote: Eexpanded from macro 'absl_nonnull'_
CA  P241T | U#RdEeDf_iBnYe( tahbissl)_)n,o n n u l l   _ N o n n u l l 
        |                       ^ 
     \
In file included from       s2/s2max_distance_targets.cc| :                                              ^~~~16
:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/container/internal/btree_container.h28::
561In file included from :../src/s2/s2point.h3::25 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/util/coding/coder.h
:36/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/base/casts.h::5236::
 In file included from note: ../src/s2/base/logging.hexpanded from macro 'ABSL_INTERNAL_X':
21:
In file included from /usr/local/clang/include/absl/log/check.h  :51137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 456 : 1A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
IN/usr/local/clang/include/absl/log/internal/check_op.hT:E450R:N25A:L _note: Aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'T
TR  I450B | U T E _ C A PxT,U RxE,D _cBoYn(stth icsh)a)r)*   a b s l _ n o n n u l l ) 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :\22
:       | note:                                                    ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/common.h  :24132 | :#9d:e fnote: imacro 'ABSL_INTERNAL_IF_false' defined heren
e a   b32s | l#_dneofninnuel lA B_SNLo_nInNuTlElR
N      A| L                     ^_
IF_false(if_satisfied, ...) __VAIn file included from _s2/s2max_distance_targets.ccA:R16G:
SIn file included from _../src/s2/s2max_distance_targets.h_:
27      :
| In file included from         ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:In file included from 27s2/s2loop.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2loop.h:
:In file included from 34../src/s2/s2point.h:
:In file included from 25../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/util/coding/coder.h:
:In file included from 36/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67../src/s2/base/casts.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h36::
564In file included from :../src/s2/base/logging.h3::21 :
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :56421 | :
 /usr/local/clang/include/absl/log/internal/check_op.h :A457B:S1L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
E/usr/local/clang/include/absl/log/internal/check_op.hR:N450A:L25_:X (note: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
se  r450t | _ o r _ a s sxi,g nx,,  icnosnesrtt _cohra_ra*s saibgsnl__hnionntn_uilmlp)l
,       | c                        ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241&:,22
:       | note:   ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/btree_container.h  :241509 | :#52d:e fnote: iexpanded from macro 'ABSL_INTERNAL_X'n
e a  b509s | l _ n o n n u l l   _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2/s2max_distance_targets.cc):,16 :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h :\36
:
      In file included from | ../src/s2/base/logging.h                                                   ^:
21:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/log/check.h::3137::
9In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :note: 21macro 'ABSL_INTERNAL_IF_true' defined here:

/usr/local/clang/include/absl/log/internal/check_op.h:458   :311 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   A458B | SALB_SILN_TLEORGN_AILN_TIEFR_NtArLu_eD(EiFfI_NsEa_tMiAsKfEi_eCdH,E C.K._.O)P _iSfT_RsIaNtGi_sEfXiTeEdR
N      (| c        ^o
nst std::string&);In file included from 
s2/s2loop.cc      :| 18^:

In file included from ../src/s2/s2loop.h:/usr/local/clang/include/absl/log/internal/check_op.h34::
449In file included from :../src/s2/mutable_s2shape_index.h31::30 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/container/btree_map.h
:67:
  /usr/local/clang/include/absl/container/internal/btree_container.h449: | 564 : 3e:x twarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
n tem  p564l | a t eA BcSoLn_sItN TcEhRaNrA*L _aXb(siln_sneorntn_uolrl_ aMsaskiegCnh,e ciknOspeSrttr_ionrg_(a s s i\g
n      _| h                              ^i
nt/usr/local/clang/include/absl/base/nullability.h_:i241m:p22l:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | &#,d
e      f| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
e   a565b | s l _ n o n n u l l   _ N o n n u l lc
o      n| s                     ^t
 &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
In file included from s2/s2max_distance_targets.cc  :56616 | :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h :c36o:
nIn file included from s../src/s2/base/casts.ht:_36i:
tIn file included from e../src/s2/base/logging.hr:a21t:
oIn file included from r/usr/local/clang/include/absl/log/check.h(:h37i:
nIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h): 21A:
B/usr/local/clang/include/absl/log/internal/check_op.hS:L458_:I1N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL/usr/local/clang/include/absl/log/internal/check_op.h_:C450O:M25M:A )note: ;expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
450 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :x ,note:  expanded from macro 'ABSL_INTERNAL_X'x
, c  o509n | s t   c h a r *   a bAsBlS_Ln_oInNnTuElRlN)A
L      _| A                        ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B241U:T22E:_ Cnote: Aexpanded from macro 'absl_nonnull'P
TU  R241E | D#_dBeYf(itnhei sa)b)s,l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
  \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511In file included from :s2/s2max_distance_targets.cc52::16 :
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2max_distance_targets.h
:27:
In file included from   ../src/s2/s1angle.h511: | 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36A:
BIn file included from S../src/s2/base/casts.hL:_36I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:A37T:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:B21U:
T/usr/local/clang/include/absl/log/internal/check_op.hE:_459C:A1P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_BY  (459t | hAiBsS)L)_)L O G _ I N T E R N A L _ D E F I N E _ M A K E _\C
H      E| C                                                   ^K
_O/usr/local/clang/include/absl/container/internal/common.hP:_31S:T9R:I Nnote: Gmacro 'ABSL_INTERNAL_IF_true' defined here_
EXT   E31R | N#(dceofnisnte  aAbBsSlL:_:IsNtTrEiRnNgA_Lv_iIeFw_&t)r;u
e      (| i^f
_s/usr/local/clang/include/absl/log/internal/check_op.ha:t449i:s31f:i ed, ...) if_satisfiednote: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      
|         ^
  449 |   extern In file included from ts2/s2loop.cce:m18p:
lIn file included from a../src/s2/s2loop.ht:e34 :
cIn file included from o../src/s2/mutable_s2shape_index.hn:s30t:
 In file included from c/usr/local/clang/include/absl/container/btree_map.hh:a67r:
*/usr/local/clang/include/absl/container/internal/btree_container.h :a564b:s3l:_ nwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
null   M564a | k e CAhBeScLk_OIpNSTtErRiNnAgL(_ X ( i\n
s      e| r                              ^t
_o/usr/local/clang/include/absl/base/nullability.hr:_241a:s22s:i gnote: nexpanded from macro 'absl_nonnull',
 i  n241s | e#rdte_foirn_ea sasbisgln__nhoinnntu_lilm p_lN,o ncnounlslt
       &| ,                     ^

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |            In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.h :c27o:
nIn file included from s../src/s2/s1angle.ht: 28&:
,In file included from  ../src/s2/s2point.ht:r25u:
eIn file included from ,../src/s2/util/coding/coder.h :t36r:
uIn file included from e../src/s2/base/casts.h,:
36      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~../src/s2/base/logging.h
:21:
  In file included from 566/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 459 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 c/usr/local/clang/include/absl/log/internal/check_op.ho:n450s:t25_:i tnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'r
at  o450r | ( h i n t )  xA,B SxL,_ IcNoTnEsRtN AcLh_aCrO*M MaAb)s;l
_      n| o                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l511):
47      :|                          ^note: 
expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/base/nullability.h:241:  22511: |   note:  expanded from macro 'absl_nonnull' 
     241  |  # d eAfBiSnLe_ IaNbTsElR_NnAoLn_nAuTlTlR I_BNUoTnEn_uClAlP
T      U| R                     ^E
D_BY(this)))                        \
In file included from       s2/s2max_distance_targets.cc| :                                              ^~~~16
:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 568/usr/local/clang/include/absl/log/internal/check_impl.h::321::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]460
:66:   warning: 568type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  A  B460S | LA_BISNLT_ELRONGA_LI_NXT(EiRnNsAeLr_tD_EoFrI_NaEs_sMiAgKnE,_ CiHnEsCeKr_tO_Po_rS_TaRsIsNiGg_nE_XhTiEnRtN_(icmopnls,t  ccohnasrt*  &a,b s&l&_,n
o      n| n  ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.h):;509
:      52| :                                                                 ^ 
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.h
:241:22  :509  | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(tIn file included from hs2/s2max_distance_targets.cci:s16):
)In file included from ,../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from \../src/s2/base/logging.h
:      21| :
                                                   ^In file included from 
/usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 32/usr/local/clang/include/absl/log/internal/check_impl.h::921::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here460
:66:    32warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eI Fa_bfsall_sneo(ninfu_lsla t_iNsofnineudl,l 
.      .| .                     ^)
 __VA_AIn file included from Rs2/s2max_distance_targets.ccG:S16_:
_In file included from 
../src/s2/s2max_distance_targets.h      :| 27        ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.hIn file included from :s2/s2loop.cc36::
18In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2loop.h21::
34In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/mutable_s2shape_index.h37::
30In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h21::
67/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h460::5681::3 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  460 | A  B568S | L _ LAOBGS_LI_NITNETRENRANLA_LD_EXF(IiNnEs_eMrAtK_Eo_rC_HaEsCsKi_gOnP,_ SiTnRsIeNrGt__EoXrT_EaRsNs(icgonn_shti ncth_airm*p la,b sclo_nnsotn n&u,l l&)&;,

            | | ^  ^

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::450511::2552::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'expanded from macro 'ABSL_INTERNAL_X'

  450 |    511  |         x ,   x ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sAlT_TnRoInBnUuTlEl_)C
A      P| T                        ^U
RE/usr/local/clang/include/absl/base/nullability.hD:_241B:Y22(:t hnote: iexpanded from macro 'absl_nonnull's
))  )241  |  # d e f i n e   a b s l _ n o n n u l l   _ N\o
n      n| u                                                   ^l
l
/usr/local/clang/include/absl/container/internal/common.h      :| 32                     ^:9: 
note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNALIn file included from _s2/s2max_distance_targets.ccI:F16_:
fIn file included from a../src/s2/s2max_distance_targets.hl:s27e:
(In file included from i../src/s2/s1angle.hf:_28s:
aIn file included from t../src/s2/s2point.hi:s25f:
iIn file included from e../src/s2/util/coding/coder.hd:,36 :
.In file included from .../src/s2/base/casts.h.:)36 :
_In file included from _../src/s2/base/logging.hV:A21_:
AIn file included from R/usr/local/clang/include/absl/log/check.hG:S37_:
_In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21        ^:

/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template cIn file included from os2/s2loop_measures.ccn:s18t:
 In file included from c../src/s2/s2loop_measures.hh:a34r:
*In file included from  ../src/s2/s2edge_crossings.ha:b47s:
lIn file included from _../src/s2/s2predicates.hn:o55n:
nIn file included from u/usr/local/clang/include/absl/flags/flag.hl:l40 :
Ma/usr/local/clang/include/absl/flags/commandlineflag.hk:e163C:h56e:c kwarning: Otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
Strin  g163(In file included from  |  s2/s2loop.cc  :  18\b:

oIn file included from       o../src/s2/s2loop.hl| :                               ^34P
:
aIn file included from /usr/local/clang/include/absl/base/nullability.hr../src/s2/mutable_s2shape_index.hs::e24130F::
r22In file included from o:/usr/local/clang/include/absl/container/btree_map.hm :(note: 67aexpanded from macro 'absl_nonnull':
b
/usr/local/clang/include/absl/container/internal/btree_container.hs:l  570:241:: | 3s#:td ewarning: rfpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ii
nneg   _570avb | is el w_A nBvoSanLln_uIueN,lT lEs Rt_NdNA:oL:n_snXut(lriilnn
sge      *r | ta                     ^_b
osrl__anIn file included from sos2/s2max_distance_targets.ccsn:ing16unl:
,lIn file included from   i../src/s2/s2max_distance_targets.henr:sreo27rrt):
_;In file included from o
../src/s2/s1angle.hr      _:| a                                                       ^28s
s:
iIn file included from g/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.hn:_:241h25:i:
22nIn file included from :t../src/s2/util/coding/coder.h _:note: iexpanded from macro 'absl_nonnull'36m
:
pIn file included from   l../src/s2/base/casts.h241,: |  #36cdo:
enfIn file included from si../src/s2/base/logging.htn: e21& :
,aIn file included from  b/usr/local/clang/include/absl/log/check.h&s:&l,37_
n:
      oIn file included from | n  ^/usr/local/clang/include/absl/log/internal/check_impl.hn:u
21l:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.hl: :509_462:N:52o24:n: n note: warning: uexpanded from macro 'ABSL_INTERNAL_X'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l

        |                        ^509462
 |  |          c o n s t  AsBiSgLn_eIdN TcEhRaNrA*L _aAbTsTlR_InBoUnTnEu_lClA)P;T
U      R| E                       ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull',
     241  |  # d e f i n e   a b s l _ n o n n uIn file included from  ls2/s2loop_measures.cc l:\ 18
_:
N      oIn file included from | n../src/s2/s2loop_measures.hn                                                   ^:u
34l:
/usr/local/clang/include/absl/container/internal/common.hlIn file included from :
../src/s2/s2edge_crossings.h32      ::| 47                     ^9:

:In file included from  ../src/s2/s2predicates.h:note: 55macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from In file included from /usr/local/clang/include/absl/flags/flag.h   s2/s2max_distance_targets.cc:32:40 | 16:
#:
/usr/local/clang/include/absl/flags/commandlineflag.hdIn file included from :e../src/s2/s2max_distance_targets.h193f::i2727n:
:eIn file included from   ../src/s2/s1angle.hwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:B
28S:
L  In file included from _193../src/s2/s2point.hI | :N 25T :
EvRIn file included from iNr../src/s2/util/coding/coder.hAtL:u_a36IlF:
 _In file included from vfo../src/s2/base/casts.hail:ds 36eR:
(eiIn file included from afd../src/s2/base/logging.h_(:sva21ot:
iidsIn file included from *f /usr/local/clang/include/absl/log/check.hiae:bd37s,l:
 _.In file included from n.o/usr/local/clang/include/absl/log/internal/check_impl.h.n)n: u21_l:
_l/usr/local/clang/include/absl/log/internal/check_op.hV :Ad462_sA:tR)24G S:c_o _n
warning: s      ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]|          ^
=
 /usr/local/clang/include/absl/base/nullability.h0:;241
:      22| :                          ^ 
In file included from note: s2/s2loop.cc/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull'::
18241:
  :In file included from 24122../src/s2/s2loop.h | ::# 34d:
note: eIn file included from fexpanded from macro 'absl_nonnull'i../src/s2/mutable_s2shape_index.hn
:e30   :
a241In file included from b | s/usr/local/clang/include/absl/container/btree_map.hl#_:dn67oe:
f/usr/local/clang/include/absl/container/internal/btree_container.hnin:In file included from nu570ls2/s2memory_tracker.ccle :_: 3aN18o:nbn:
 suIn file included from warning: ll../src/s2/s2memory_tracker.hlpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
_:
      n27o| :
                     ^  n/usr/local/clang/include/absl/strings/str_format.h
570n: | u 115 lAIn file included from :lB Ss2/s2max_distance_targets.cc52_LN::_oI16 nN:
warning: nTuIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ElR../src/s2/s2max_distance_targets.h
lN
:A      L27  | _                     ^:
115X
(In file included from  | i n s ../src/s2/s1angle.he r: t 28_co:
ornIn file included from _sa../src/s2/s2point.h:25ts :
ssIn file included from itgr../src/s2/util/coding/coder.hn_:,f36 o:
irnIn file included from msa../src/s2/base/casts.het:_ri36tn_:
toeIn file included from rr../src/s2/base/logging.h_na:asl21s::
i:In file included from gP/usr/local/clang/include/absl/log/check.hna:_r37hs:
eidIn file included from nF/usr/local/clang/include/absl/log/internal/check_impl.hto:_ri21mma:
ptl/usr/local/clang/include/absl/log/internal/check_op.hB,a :sc461eo:*n1 sa:tb  swarning: &l,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_ n&
o&n,n  
u461l       | lA|  B  ^SpL
c_/usr/local/clang/include/absl/container/internal/btree_container.hL)O:
G511_      I:N| T52                                                   ^E:
R Nnote: A/usr/local/clang/include/absl/base/nullability.hLexpanded from macro 'ABSL_INTERNAL_X'_:
D241E:  F22I511N: | E _note:  Mexpanded from macro 'absl_nonnull' A
 K E  _ C241H  | E # CdK _eO Pf_ASiTBnRSeLI N_aGI_bNsETXlE_TREnNoRAnNL(n_u
Al      Tl| T R^_I
NBo/usr/local/clang/include/absl/log/internal/check_op.hUn:TnE450u_:lCl25A
:P       T| Unote:                      ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'R

ED  _450B | Y ( t h i s )x),)  x ,   c o n s t   c h a r *   a b s l _ n o n n\u
l      l| )                                                   ^

      | /usr/local/clang/include/absl/container/internal/common.h                        ^:
31:/usr/local/clang/include/absl/base/nullability.h9::241 :note: 22macro 'ABSL_INTERNAL_IF_true' defined here:
 note:    expanded from macro 'absl_nonnull'31
 | #  d241e | f#idneef iAnBeS La_bIsNlT_EnRoNnAnLu_lIlF __tNrounen(uilfl_
s      a| t                     ^i
sfied, ...) In file included from is2/s2memory_tracker.ccf:_18s:
aIn file included from t../src/s2/s2memory_tracker.hi:s27f:
i/usr/local/clang/include/absl/strings/str_format.he:d155
:      In file included from 36| s2/s2max_distance_targets.cc:        ^: 
16warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2max_distance_targets.h:27:
In file included from   ../src/s2/s1angle.h155: | 28 In file included from :
 s2/s2loop.ccIn file included from e:x../src/s2/s2point.h18p::
l25In file included from i:
../src/s2/s2loop.hcIn file included from :i../src/s2/util/coding/coder.h34t::
 36In file included from F:
../src/s2/mutable_s2shape_index.hoIn file included from :r../src/s2/base/casts.h30m::
a36In file included from t:
/usr/local/clang/include/absl/container/btree_map.hCIn file included from :o../src/s2/base/logging.h67u::
n21/usr/local/clang/include/absl/container/internal/btree_container.ht:
:CIn file included from 570a/usr/local/clang/include/absl/log/check.h:p:3t37:u:
 rIn file included from warning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/log/internal/check_impl.h(
i:n21t:
*  /usr/local/clang/include/absl/log/internal/check_op.h 570a: | b 463s l:A_B1nSo:Ln_ nIwarning: uIn file included from Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ls2/s2metrics.cclT 
:EpR31)  N:
A L463In file included from :_  | ../src/s2/s2metrics.hAXp:_B(34(Si:
pLn_In file included from )s L../src/s2/s2coords.he{r}O:t
G105_      _:
o| rIIn file included from N                                   ^T_E../src/s2/base/logging.h
aR:s/usr/local/clang/include/absl/base/nullability.hN21s:iA:
241gLIn file included from _:n/usr/local/clang/include/absl/log/check.hD22E,::F I37N i:
nEnote: _In file included from sexpanded from macro 'absl_nonnull'M/usr/local/clang/include/absl/log/internal/check_impl.hAeK
:rE21  t_:
C241_In file included from oH | /usr/local/clang/include/absl/log/internal/check_op.hrE#:_Cd40aKe:
s_fIn file included from sOi/usr/local/clang/include/absl/log/internal/nullstream.hiPn:g_eS37n T:
_aR/usr/local/clang/include/absl/strings/string_view.hhbiI:NsGn_53Elt_:X_Tn54iEo:mRnN pn(warning: lu,
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l l      
c | o_^nN
so   t/usr/local/clang/include/absl/log/internal/check_op.hn53n : | ucloln&449
s,t:       e&31| x&:                     ^p,r 

 note:       expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's| t  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
r
in  g  _449571v |  | i  e  w In file included from e x s2/s2memory_tracker.cc N t:u e18l lr:
 SnIn file included from  a  ../src/s2/s2memory_tracker.htf : eem27p S:
tl a/usr/local/clang/include/absl/strings/str_format.htre :i  164nc :gofn8Vas:ilt  warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ws(c
heacr,*  o  164anbts | ls_r utn e ,oinc ncnhutoanl*rs*l  tM a_baaibtselskre_la_Cnhtenuolcorl(knahbOnilnpuet Slt)pl)r i  A{nUgB
n(S      u L |  s\_                                                     ^e
I
d      N(T| )                              ^E/usr/local/clang/include/absl/base/nullability.h 
R:{N ArLe_257/usr/local/clang/include/absl/base/nullability.htCu:r:O23n241M:M : Ap22note: )expanded from macro 'absl_nullable';_
:
;        |   }note:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~257
expanded from macro 'absl_nonnull'
 |       #
| d       ^e/usr/local/clang/include/absl/container/internal/btree_container.h  
f:241i/usr/local/clang/include/absl/base/nullability.h511 | n#:d:ee24147f i:n:a22be  :snote: la bnote: sexpanded from macro 'ABSL_INTERNAL_X'_expanded from macro 'absl_nonnull'nl
_
un    lo241511ln | n | a#bu ldll  e f i n e_e   N _ Noa uAlnbBsSlLln__aunIbNllolTeE
n
nRuNlA            lL| _|                        ^A                     ^_
NT
oTnRnIuBIn file included from lUs2/s2max_distance_targets.cclT:
E16      _:
| C                     ^In file included from A
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RIn file included from E../src/s2/s1angle.hD:_28B:
YIn file included from In file included from (s2/s2memory_tracker.cct../src/s2/s2point.h:h:18i25:
s:
In file included from )In file included from ../src/s2/s2memory_tracker.h)../src/s2/util/coding/coder.h:):27 36:
 /usr/local/clang/include/absl/strings/str_format.h:
 : In file included from 165 ../src/s2/base/casts.h: : 836 : :
  In file included from warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h 
 :   21 165:
  | In file included from   /usr/local/clang/include/absl/log/check.h   :i n37 t :
* In file included from   a/usr/local/clang/include/absl/log/internal/check_impl.h\b
:s      l21| _                                              ^~~~:
n/usr/local/clang/include/absl/log/internal/check_op.h
o:n464n:u26l:l  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
;
        464|  |        ^ 
  /usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: uexpanded from macro 'absl_nonnull'n
si  g241n | e#dd ecfhianre*  aabbssll__nnoonnnnuullll )_;N
o      n| n                         ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_impl.h::57221::
3/usr/local/clang/include/absl/log/internal/check_op.h:: 463warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
572In file included from  |   s2/s2memory_tracker.cc 463:  | 18AA:
BBIn file included from SSL../src/s2/s2memory_tracker.h_LL:_O27GI_:
I/usr/local/clang/include/absl/strings/str_format.hNN:TT380EE:RR43NNA:AL L_warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]DXE
(FiI  nN380Es | _sMeAtKrdEt_:C_H:EosrCt_rKa_iOsnsPgi_&SgT RnISN,Gt _rEiXAnTpsEpReNern(t
d_Foo      rr| _m^aa
sts/usr/local/clang/include/absl/log/internal/check_op.h(i:sgt450nd:_:25h::is nttnote: r_expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'iin
mgp*l   ,450a b | c so l n_ s n txo, n &nx,u l,&l & c,do
sn      ts| ,t  ^
 
      c| /usr/local/clang/include/absl/container/internal/btree_container.hh                                          ^:a
509r/usr/local/clang/include/absl/base/nullability.h*:: 52241a::b 22snote: :lexpanded from macro 'ABSL_INTERNAL_X' _note: n
oexpanded from macro 'absl_nonnull'n
n  u  l509241l | ) | In file included from  
#s2/s2loop_measures.ccd       :e f| 18 i                         ^:
n e 
In file included from   a ../src/s2/s2loop_measures.h /usr/local/clang/include/absl/base/nullability.hb:sAl:34B_241:
Sn:In file included from Lo22../src/s2/s2edge_crossings.h_n::InN 47uTlnote: :
expanded from macro 'absl_nonnull'ElIn file included from  
R../src/s2/s2predicates.h_NN  :AoL24155n_n | :
#AduIn file included from Tel/usr/local/clang/include/absl/flags/flag.hTfli:R
n42eI       a:
bBs| In file included from Ul                     ^_/usr/local/clang/include/absl/flags/internal/flag.hT
En:_o30nCn:
uAl/usr/local/clang/include/absl/base/call_once.hPl:T 52U_:RN24Eo:Dn _nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lB
Yl(
   t      52h|  | is                     ^st
)d):,: a t o m i c < u i n t 3 2 _ t > * In file included from   s2/s2max_distance_targets.cca b: s 16l _:
 n\In file included from o
../src/s2/s2max_distance_targets.hn      n:| u                                                   ^27l
:
lIn file included from /usr/local/clang/include/absl/container/internal/common.h ../src/s2/s1angle.h:C:31o28:n:
9tIn file included from :r../src/s2/s2point.h onote: :lmacro 'ABSL_INTERNAL_IF_true' defined hereW25
o:
r   In file included from d31(../src/s2/util/coding/coder.h | 
:#      d36| e:
f                       ^In file included from i
n../src/s2/base/casts.he: /usr/local/clang/include/absl/base/nullability.h36In file included from A:B:
s2/s2memory_tracker.cc241SIn file included from ::L../src/s2/base/logging.h1822_::
:I21In file included from  N:
../src/s2/s2memory_tracker.hnote: Texpanded from macro 'absl_nonnull'In file included from :E
/usr/local/clang/include/absl/log/check.h27  R::
241N37 | /usr/local/clang/include/absl/strings/str_format.hA:
#:dLeIn file included from 440_fI/usr/local/clang/include/absl/log/internal/check_impl.h:iFn:24_e21:t r:
 aub/usr/local/clang/include/absl/log/internal/check_op.hwarning: es(:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]li_465
fn:_o1  sna:440ntu  | ilwarning: isnflitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t  _FeP
Ndr,oinnn   tuFl(.s465l.
.t) |       d A| :i:B                     ^fF_S
LI_sLLaEOt*i In file included from Gs_as2/s2loop_measures.ccfIb:is18el:
N_TdIn file included from nE
../src/s2/s2loop_measures.hoR      :nN| 34nA        ^:
uL
In file included from l_../src/s2/s2edge_crossings.hlD:E 47FoI:
NuIn file included from Et_../src/s2/s2predicates.hMIn file included from p:uAs2/s2loop.cc55tK::
,E18In file included from  _:
/usr/local/clang/include/absl/flags/flag.hcCIn file included from :oH../src/s2/s2loop.h42nE:C:
s34KIn file included from t:
_/usr/local/clang/include/absl/flags/internal/flag.hO PIn file included from _:SF../src/s2/mutable_s2shape_index.ho30rT:R:
m/usr/local/clang/include/absl/base/call_once.h30Ia::
NtG53In file included from S_:/usr/local/clang/include/absl/container/btree_map.hpE22:eX:T67c <E:
warning: /usr/local/clang/include/absl/container/internal/btree_container.hARtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:(rc
572go:s   .n353.s:t | . >  vwarning: o&i d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  f*
 oa rba  msb572alts | l:_, :n
 oo      AnBn| cSen                       ^uLl_
_lfI/usr/local/clang/include/absl/base/nullability.h)lN:;a
T241g      E:*| R22 ^N:a
A L/usr/local/clang/include/absl/log/internal/check_op.hbnote: _expanded from macro 'absl_nonnull':sX
(449li  n:_241ns31 | o#ndee:nrutl_lf o ifnote: rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'nl_a
ea gsas  )b;s
li_449      gnn | | o,                      ^n n 
ei/usr/local/clang/include/absl/base/nullability.hnux:slt241elre:r t__Noor22_nn :anst enote: uslmexpanded from macro 'absl_nonnull'pil

l  g      a241n| _t | e                     ^h#i 
dnectofn_isintmep  la,cb hsacrlo*_n nasbotsn ln&_u,nlo nln& u&l_In file included from ,lN s2/s2memory_tracker.cc
oM:      na18| nk:
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ueIn file included from 
lC../src/s2/s2memory_tracker.hlh  e:
573c27       | k:
O/usr/local/clang/include/absl/strings/str_format.h|  p:                     ^ S469
 t: r20 i: n  gwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
    \  
 469        |  i|                                ^n t
   S/usr/local/clang/include/absl/base/nullability.h N:tPr241rui:en22,t :Ff (acnote: lhexpanded from macro 'absl_nonnull'sa
er,  * 241 ca | ob#nssdlt_e_nfioitnnenerua latblo srlo_(nuhtoIn file included from ipns2/s2loop_measures.ccnutn:ut)18 l,l:
A  In file included from BsS_../src/s2/s2loop_measures.hNtL:odn_n34:I:u:
lNsTIn file included from Eli
../src/s2/s2edge_crossings.hRzN      :eA_| 47                     ^Lt:
 
_In file included from Cs../src/s2/s2predicates.hOi:MzMeIn file included from 55A,)s2/s2max_distance_targets.cc:

;:In file included from       
16/usr/local/clang/include/absl/flags/flag.h|       :
:                   ^| In file included from 42
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2max_distance_targets.h:

:/usr/local/clang/include/absl/base/nullability.hIn file included from 27:/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/flags/internal/flag.h:
241::In file included from :50930../src/s2/s1angle.h22::
:/usr/local/clang/include/absl/base/call_once.h:4728: ::
96note:  expanded from macro 'absl_nonnull'note: In file included from :
expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2point.h33
  ::241  25  | 509#:
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | d In file included from 
e ../src/s2/util/coding/coder.hf   i n:96 e36 |    :
 a  fIn file included from b r ../src/s2/base/casts.hsi e:lA_BnSonn36Ld_ ns:
IuNltlIn file included from TdE R../src/s2/base/logging.h:_:Na:NAtL21oonmniu_l:
cA<TlTIn file included from u
iRn/usr/local/clang/include/absl/log/check.h      It:| B3U37                     ^2T_:

Et_In file included from >C*/usr/local/clang/include/absl/log/internal/check_impl.hA P:aTb21UsR:
lE_/usr/local/clang/include/absl/log/internal/check_op.hDn:_oB465nYn:(ut66lhl:i s b)awarning: )s,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e _
 i n t   e465 r  | nA BaS lL :_ :L C OoG n_ tI NrTIn file included from  o Es2/s2memory_tracker.ccl WR: o N18Ar d :
L( 
In file included from _\D      E../src/s2/s2memory_tracker.hF
I| N:                                      ^E27_| M
A:
K                                              ^~~~/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/str_format.hE
::_241503C::H22E20C/usr/local/clang/include/absl/container/internal/btree_container.h::K:  _572note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O:

P3  _:  241S Twarning: 503 | Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | # I
d N/usr/local/clang/include/absl/container/internal/btree_container.hGeF:o_fE511rimX:naeT52t RE:aabR NwsSli_note: (nnexpanded from macro 'ABSL_INTERNAL_X'ckoon
s(tnTn*   uv o511lali | db*   asb_s ll_Nn o_no n n n nuo nul l 
nlA      ulB)| ;l
S                     ^Ll_ I      
rNa| Tw                                                                 ^E)R
In file included from  N s2/s2loop_measures.cc/usr/local/clang/include/absl/base/nullability.hA/L/::_ ANT18T241O:
LRI:In file included from INB22../src/s2/s2loop_measures.hTU::
T 34      Enote: :
expanded from macro 'absl_nonnull'| _                   ^CIn file included from A

../src/s2/s2edge_crossings.hP:/usr/local/clang/include/absl/base/nullability.h  T47U:R241:
241E | In file included from #:dD../src/s2/s2predicates.h22e_::fB55 iY:
note: n(eIn file included from expanded from macro 'absl_nonnull't /usr/local/clang/include/absl/flags/flag.ha
h:ib  42ss241:
)l | _In file included from n)o#/usr/local/clang/include/absl/flags/internal/flag.hd)en:n f30iu l:
l/usr/local/clang/include/absl/base/call_once.hn e :_  97aN o:b n18ns : ul  l_lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] n       
o |                         ^n 97
n u | l   l      In file included from _ N o  os2/s2max_distance_targets.ccn n :ncue 16l_ :
lf\lIn file included from 

a../src/s2/s2max_distance_targets.h            g:| |                      ^*27                                                   ^
 :

aIn file included from b/usr/local/clang/include/absl/container/internal/common.h../src/s2/s1angle.hs:l:32_28:n:
9oIn file included from :n../src/s2/s2point.h n:note: umacro 'ABSL_INTERNAL_IF_false' defined here25l
l:
    In file included from f32../src/s2/util/coding/coder.hl | a:#gd36)e;:
f
In file included from i      n../src/s2/base/casts.h| e                 ^: 
A36B/usr/local/clang/include/absl/base/nullability.h:
S:In file included from L241_../src/s2/base/logging.h:I:22N21:T:
 EIn file included from note: Rexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.hN
A:L  _37241I:
 | F#In file included from _df/usr/local/clang/include/absl/log/internal/check_impl.heaf:li21sne:
e(/usr/local/clang/include/absl/log/internal/check_op.h ia:fb465_ss:la_66tni:osn fniwarning: ueltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dl
, /usr/local/clang/include/absl/base/nullability.h _.:N.241o.n:)n 22u_l:_lV 
note: Aexpanded from macro 'absl_nonnull'      _
| A                     ^  R
241G | S#_d_e
f      i| n        ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINEIn file included from _s2/s2loop_measures.ccM:A18K:
EIn file included from _../src/s2/s2loop_measures.hC:H34E:
CIn file included from K../src/s2/s2edge_crossings.h_:O47P:
_In file included from S../src/s2/s2predicates.hT:R55I:
NIn file included from G/usr/local/clang/include/absl/flags/flag.h_:E42X:
TIn file included from E/usr/local/clang/include/absl/flags/internal/flag.hR:N30(:
c/usr/local/clang/include/absl/base/call_once.ho:n111s:t40 :v owarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
* ab  s111l | _vnooindn uLlolw)L;e
v      e| l^C
al/usr/local/clang/include/absl/log/internal/check_op.hl:O450n:c25e:( anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l:  :450o | n c e _ f l axg,*  xa,b sclo_nnsotn ncuhlalrIn file included from  *s2/s2loop.ccf :la18ab:
gs,lIn file included from  _../src/s2/s2loop.hCn:ao34nl:
nluIn file included from al../src/s2/mutable_s2shape_index.hlb:l)30e
:
&      In file included from &| /usr/local/clang/include/absl/container/btree_map.h                         ^:f
67n:
,/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h
::      241574| :                                       ^:22
3::/usr/local/clang/include/absl/base/nullability.h  :note: 241warning: expanded from macro 'absl_nonnull':passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
22
:   241note:  |   expanded from macro 'absl_nonnull'#574
d | e  f 241i  | nA#eBdS eaLbfs_ilIn_NenT oEnaRnbuNslAllL_ _n_XoN(nionnnusnlelurl lt
__N      oor| n                     ^_n
auslsli
g      n| ,                     ^ 
insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2max_distance_targets.cc  :50916 | :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
AIn file included from B../src/s2/s2point.hS:L25_:
IIn file included from N../src/s2/util/coding/coder.hT:E36R:
NIn file included from A../src/s2/base/casts.hL:_36A:
TIn file included from T../src/s2/base/logging.hR:I21B:
UIn file included from T/usr/local/clang/include/absl/log/check.hE:_37C:
AIn file included from P/usr/local/clang/include/absl/log/internal/check_impl.hT:U21R:
E/usr/local/clang/include/absl/log/internal/check_op.hD:_502B:Y1(:t hwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
)),   502  |  A B S L _ L O G _ I N T E R N A L _ C H E C\K
_      O| P                                                   ^_
IM/usr/local/clang/include/absl/container/internal/common.hP:L31(:C9h:e cnote: kmacro 'ABSL_INTERNAL_IF_true' defined here_
EQ,    31= | =#)d
e      f| i^n
e /usr/local/clang/include/absl/log/internal/check_op.hA:B488S:L32_:I Nnote: Texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'E
RNA  L488_ | I F _itnrluien(ei fc_osnasttiesxfpire dc,o n.s.t. )c hiafr_*s aatbisslf_ineudl
l      a| b        ^l
e name##IIn file included from ms2/s2loop_measures.ccp:l18In file included from (:
 s2/s2loop.ccIn file included from  :../src/s2/s2loop_measures.h 18: :
34 In file included from :
 ../src/s2/s2loop.hIn file included from  : ../src/s2/s2edge_crossings.h34 ::
 47In file included from  :
../src/s2/mutable_s2shape_index.h In file included from : ../src/s2/s2predicates.h30 ::
 55 In file included from  :
 /usr/local/clang/include/absl/container/btree_map.hIn file included from  :\/usr/local/clang/include/absl/flags/flag.h67
::
      42/usr/local/clang/include/absl/container/internal/btree_container.h| :
:                               ^In file included from 574
/usr/local/clang/include/absl/flags/internal/flag.h::3/usr/local/clang/include/absl/base/nullability.h30:::
 257/usr/local/clang/include/absl/base/call_once.hwarning: ::'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]23153
:: 41note: :  expanded from macro 'absl_nullable' 574
warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
 257A | B  #S153Ld | _ eIf Ni T nECReaNl AlLaO_nXbc(seiIlnms_pelnr(utsl_toldar:b_:aalset so_iNmguincl,<l uiainbnlstee3r2
t__      to| >r                      ^*_ 
aasbssilg_nn_ohninnIn file included from uts2/s2max_distance_targets.ccl_:li 16mcp:
olnIn file included from ,t ../src/s2/s2max_distance_targets.hrco:oln27,s:

tIn file included from        ../src/s2/s1angle.h| &                                        ^:,
 28&/usr/local/clang/include/absl/base/nullability.h:
&:In file included from ,241
../src/s2/s2point.h:      :22| 25:  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 
In file included from note: ../src/s2/util/coding/coder.h  expanded from macro 'absl_nonnull':575
36 | :
   In file included from 241 ../src/s2/base/casts.h |  #: d 36e f:
 i In file included from n ../src/s2/base/logging.he  : a 21b s:
 l In file included from _ n/usr/local/clang/include/absl/log/check.h o :ntn37ruu:
lelIn file included from ,  /usr/local/clang/include/absl/log/internal/check_impl.h_t:Nrou21nen,:
u/usr/local/clang/include/absl/log/internal/check_op.h lc:lo
502n      s:| t                     ^1_
:i twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
at/usr/local/clang/include/absl/log/internal/check_op.ho:r489(:h47i:n tnote: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
ABS  L489_ | I N T E R N AcLo_nCsOtM MTA1)&; 
v      1| ,                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
con/usr/local/clang/include/absl/container/internal/btree_container.hs:t509 :In file included from T47s2/s2memory_tracker.cc2::&  18note: v:
2expanded from macro 'ABSL_INTERNAL_X'In file included from ,
 ../src/s2/s2memory_tracker.hc:o  27n509s:
 | t/usr/local/clang/include/absl/strings/str_format.h  : c860h a:r *43  :a  bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] l
_ n    o860nA | nB Su lLf_lrI iNeexTnpEdrR NtvAoeLxit_)dA  {TA Tb R sI l BF\Uo
Tr      Em| _a                                              ^Ct
AFP/usr/local/clang/include/absl/base/nullability.hlTu:UsR241hE:(DF22_o:Br Ym(note: attexpanded from macro 'absl_nonnull'hSi
isn)  k)*,241   | a b# sd le_f in noe n  na ub ls ll_   ns oin nn ukl l, 
        _ N|                                            ^o 
n n u/usr/local/clang/include/absl/base/nullability.hl\l:

241            :| | 22                     ^                                              ^~~~:

 note: expanded from macro 'absl_nonnull'
  241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d574e:f3i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
b/usr/local/clang/include/absl/container/internal/btree_container.hs:l511_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N511o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(In file included from ts2/s2memory_tracker.cch:i18s:
)In file included from )../src/s2/s2memory_tracker.h): 27 :
 /usr/local/clang/include/absl/strings/str_format.h : 867 : 60 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       867  |      e x p l\i
c      i| t                                                   ^ 
FIn file included from o/usr/local/clang/include/absl/container/internal/common.hs2/s2max_distance_targets.ccr::m3116a::
t9SIn file included from :i../src/s2/s2max_distance_targets.h n:note: kmacro 'ABSL_INTERNAL_IF_true' defined here27(
:
sIn file included from    t../src/s2/s1angle.h31r: | _28#f:
doIn file included from er../src/s2/s2point.hfmi:an25te:
_ In file included from iA../src/s2/util/coding/coder.hnBt:Se36Lr_:
In file included from nIaIn file included from s2/s2loop_measures.ccNl../src/s2/base/casts.h:T::18E:R36:
FNo:
In file included from ArIn file included from ../src/s2/s2loop_measures.hLm_../src/s2/base/logging.h:aIt:34FS21:
_it:
In file included from nrIn file included from ../src/s2/s2edge_crossings.hkuI/usr/local/clang/include/absl/log/check.h:em:47(p37:
ilf:
In file included from *_ In file included from ../src/s2/s2predicates.hsa/usr/local/clang/include/absl/log/internal/check_impl.h:ab:55ts21:
il:
In file included from s_f/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/flags/flag.hnio::end50242n,u::
 l.1In file included from l. :/usr/local/clang/include/absl/flags/internal/flag.h.s :)) warning: 30
itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
      f
| /usr/local/clang/include/absl/base/call_once.h                                                           ^_:/usr/local/clang/include/absl/log/internal/check_op.h
s194a::/usr/local/clang/include/absl/base/nullability.ht49731:i::241s32 :f:warning: 22i type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:enote: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' dnote: 
  
expanded from macro 'absl_nonnull'194      
 | | i            ^n497241
l |  | i# nd ee ifIn file included from snils2/s2loop.cctndi:nee:18  :c:
aaboIn file included from tson../src/s2/s2loop.hlm_s:tin34oec:
nx<pIn file included from rn u../src/s2/mutable_s2shape_index.hiunlc:tl3o30 2__Nton:
>nsIn file included from t*n/usr/local/clang/include/absl/container/btree_map.hu  :lca67lhb:

/usr/local/clang/include/absl/container/internal/btree_container.hasr      *:l| _ 574a                     ^bn:
so3ln_:nn uwarning: ul'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]ll
l aCbolIn file included from   nes2/s2memory_tracker.cc574t : | r n18o la:
AWmIn file included from Boe../src/s2/s2memory_tracker.hSrL#:d_(#27I
NI:
m/usr/local/clang/include/absl/strings/str_format.h      Tp:| E                              ^l869(R
: N40 /usr/local/clang/include/absl/base/nullability.hA: :L  241 _warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] X22(
i :n     s869e note:   |  rexpanded from macro 'absl_nonnull'  t
  _ s  o t241rr_  | _#adsf e s\ofii
rgnn      mea ta,b| _                               ^ sil
inn_snt/usr/local/clang/include/absl/base/nullability.heoe:rnrn257tn_aour:ll:_:23la s_sNFo:iogrnn_n umlalthSnote: 
iiexpanded from macro 'absl_nullable'      nnt
| k_                       ^Iim257
mpp | ll*#, In file included from d acs2/s2loop_measures.ccoeb:snlf18s_ti:
n onIn file included from &n,e../src/s2/s2loop_measures.hn u :&la34&l,b:
 
ssIn file included from       il../src/s2/s2edge_crossings.h| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_:k
_n47  ;u:
575
lIn file included from  |        l../src/s2/s2predicates.h|                                         ^a: 
b55/usr/local/clang/include/absl/base/nullability.h l:
: eIn file included from 241  /usr/local/clang/include/absl/flags/flag.h: _:22 N42u: :
l  In file included from  lnote: /usr/local/clang/include/absl/flags/internal/flag.hexpanded from macro 'absl_nonnull' a:
 b 30  l e:

/usr/local/clang/include/absl/base/call_once.h241       : |  #| 195 dte                      ^:rf
16uie:n,  ewarning: t type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]rIn file included from a
bus2/s2max_distance_targets.ccs  le_:195,n16 |  o:
 c o n nIn file included from sotnnc../src/s2/s2max_distance_targets.h_uel:i_lf27t elr:
_aNaoIn file included from gtno../src/s2/s1angle.h*n ualblr:s
(28l      _h:
| n                     ^oinIn file included from 
nnt../src/s2/s2point.hu):l l25A B:
fSlIn file included from La_../src/s2/util/coding/coder.hgI:)N36 T{:
E
RIn file included from       N../src/s2/base/casts.h| A               ^:L
36_:
/usr/local/clang/include/absl/base/nullability.hCIn file included from :O../src/s2/base/logging.h241M::M2122A:
:)In file included from  ;/usr/local/clang/include/absl/log/check.hnote: 
:expanded from macro 'absl_nonnull'      37
| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  In file included from 
241/usr/local/clang/include/absl/log/internal/check_impl.h | :/usr/local/clang/include/absl/container/internal/btree_container.h#21:d:
511/usr/local/clang/include/absl/log/internal/check_op.he:f:47i502:n: e1note:  expanded from macro 'ABSL_INTERNAL_X':a
b swarning:   ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]511_
 | n o/usr/local/clang/include/absl/log/internal/check_op.h n: n498 u l :l 35  _: N  oAnote: nBexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'nSu
Ll_lI  
N498      T | | E                     ^ R 
 N A L _iAnTtT RvI1B,U TiEn_tC AvP2T,U RcEoDn_sBtY (cthhairs*) )a)b s l _ n o n n u l l   e x p r t In file included from e xs2/s2loop_measures.cc t: )18  :
 {In file included from    ../src/s2/s2loop_measures.h  :\ 34
 :
       In file included from |  ../src/s2/s2edge_crossings.h                                              ^~~~ :
 47 :
In file included from  ../src/s2/s2predicates.h : 55 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h :\42
:
      In file included from | /usr/local/clang/include/absl/flags/internal/flag.h                                  ^:
30:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/call_once.h::241200::2240::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #200d | evfoiinde  LaobwsLle_vneolnCnaullllO n_cNeo(nanbuslll:
:      o| n                     ^c
e_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from In file included from s2/s2max_distance_targets.ccs2/s2loop.cc::1618:
:
In file included from In file included from ../src/s2/s2max_distance_targets.h../src/s2/s2loop.h::2734:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/mutable_s2shape_index.h::2830:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/btree_map.h::2567:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/util/coding/coder.h::58136::
3In file included from :../src/s2/base/casts.h :warning: 36'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/base/logging.h:21:
In file included from   /usr/local/clang/include/absl/log/check.h581: | 37 :
 In file included from A/usr/local/clang/include/absl/log/internal/check_impl.hB:S21L:
_IN/usr/local/clang/include/absl/log/internal/check_op.hT:E503R:N1A:L _warning: Xtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
inser  t503_ | oArB_SaLs_sLiOgGn_,I NiTnEsReNrAtL__oCrH_EaCsKs_iOgPn__IhMiPnLt(_Cihmepclk,_ N&E&,,  !c=o)n
s      t|  ^&
,
      | /usr/local/clang/include/absl/log/internal/check_op.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
488:32:   582note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
       488  |      i n l i n e   c otnrsutee,x pfra lcsoen,s tc ocnhsatr_*i taebrsalt_orn(uhlilnatb)l eA BnSaLm_eI#N#TIEmRpNlA(L _ C O M M A ) ; 
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 509 :\47
:       | note:                                ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:  257509: | 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_uAlTlTaRbIlBeU T_EN_uClAlPaTbUlReE
D      _| B                      ^Y
(this)),      In file included from  s2/s2max_distance_targets.cc : 16 :
 In file included from  ../src/s2/s2max_distance_targets.h : 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25\:

In file included from       ../src/s2/util/coding/coder.h| :                                              ^~~~36
:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 581/usr/local/clang/include/absl/log/check.h::337::
 In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
21:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.h::511503::521::  note: warning: expanded from macro 'ABSL_INTERNAL_X'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:  489511: | 47 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
       489A | B S L _ I N TcEoRnNsAtL _TA1T&T RvI1B,U TcEo_nCsAtP TTU2R&E Dv_2B,Y (ctohnisst) )c)h a r *   a b s l _ n o n n u l l   e x p r t e x\t
)       | {                                                   ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32\:
9      :|                                                ^
note: macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/base/nullability.h
:241:   2232: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oInFn_uflall s_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2/s2loop.cc:  18257:
 | In file included from #../src/s2/s2loop.hd:e34f:
iIn file included from n../src/s2/mutable_s2shape_index.he: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l583a:b3l:e  warning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
ulla  b583l | e 
       A| B                      ^S
L_INTERNAIn file included from Ls2/s2max_distance_targets.cc_:X16(:
iIn file included from n../src/s2/s2max_distance_targets.hs:e27r:
tIn file included from _../src/s2/s1angle.ho:r28_:
aIn file included from s../src/s2/s2point.hs:i25g:
nIn file included from ,../src/s2/util/coding/coder.h :i36n:
sIn file included from e../src/s2/base/casts.hr:t36_:
oIn file included from r../src/s2/base/logging.h_:a21s:
sIn file included from i/usr/local/clang/include/absl/log/check.hg:n37_:
hIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:t21_:
i/usr/local/clang/include/absl/log/internal/check_op.hm:p503l:,1 :& &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
co/usr/local/clang/include/absl/log/internal/check_op.hn:s498t: 35&:, 
      note: | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'  ^

/usr/local/clang/include/absl/container/internal/btree_container.h  :498509 | : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
int   509v | 1 ,   i n t   v 2 ,  AcBoSnLs_tI NcThEaRrN*A La_bAsTlT_RnIoBnUnTuEl_lC AePxTpUrRtEeDx_tB)Y ({t h i s ) ) ,                      \ 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                                                    ^  
241 | /usr/local/clang/include/absl/container/internal/common.h#:d31e:f9i:n enote:  macro 'ABSL_INTERNAL_IF_true' defined herea
bsl   _31n | o#ndneufliln e_ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |         In file included from  s2/s2max_distance_targets.cc :A16B:
SIn file included from L../src/s2/s2max_distance_targets.h_:I27N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hA:T25T:
RIn file included from I../src/s2/util/coding/coder.hB:U36T:
EIn file included from _../src/s2/base/casts.hC:A36P:
TIn file included from U../src/s2/base/logging.hR:E21D:
_In file included from B/usr/local/clang/include/absl/log/check.hY:(37t:
hIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hs:)21):
) /usr/local/clang/include/absl/log/internal/check_op.h : 504 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       504  |  A B S L _ L O G\_
I      N| T                                                   ^E
RN/usr/local/clang/include/absl/container/internal/common.hA:L32_:C9H:E Cnote: Kmacro 'ABSL_INTERNAL_IF_false' defined here_
OP_   I32M | P#Ld(eCfhiencek _ALBES,L _<I=N)T
E      R| N^A
L_I/usr/local/clang/include/absl/log/internal/check_op.hF:_488f:a32l:s enote: (expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
f_s  a488t | i s fiineldi,n e. .c.o)n s_t_eVxAp_rA RcGoSn_s_t
       c| h        ^a
r* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2/s2loop.cc489: | 18 :
 In file included from  ../src/s2/s2loop.h : 34 :
cIn file included from o../src/s2/mutable_s2shape_index.hn:s30t:
 In file included from T/usr/local/clang/include/absl/container/btree_map.h1:&67 :
v/usr/local/clang/include/absl/container/internal/btree_container.h1:,588 :c3o:n swarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
T2&   v5882 | ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_innosnenrutl_lo re_xapsrstiegxnt,)  i{n s e r t _\o
r      _| a                                              ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241_:h22i:n tnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #&d&e,f i&n&e,  afbaslls_en,o
n      n| u  ^l
l /usr/local/clang/include/absl/container/internal/btree_container.h_:N509o:n52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X'

      |                      ^
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_faIn file included from ls2/s2max_distance_targets.ccs:e16(:
iIn file included from f../src/s2/s2max_distance_targets.h_:s27a:
tIn file included from i../src/s2/s1angle.hs:f28i:
eIn file included from d../src/s2/s2point.h,: 25.:
.In file included from .../src/s2/util/coding/coder.h): 36_:
_In file included from V../src/s2/base/casts.hA:_36A:
RIn file included from G../src/s2/base/logging.hS:_21_:

In file included from       /usr/local/clang/include/absl/log/check.h| :        ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:In file included from 1s2/s2loop.cc:: 18warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2loop.h:34/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 497../src/s2/mutable_s2shape_index.h::3230::
 In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
67:
/usr/local/clang/include/absl/container/internal/btree_container.h:  588497: | 3 :  iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
ine   c588o | n s tAeBxSpLr_ IcNoTnEsRtN AcLh_aXr(*i nasbesrlt__nourl_laasbslieg nn,a mien#s#eIrmtp_lo(r _ a s s i g n _ h i n t _ i m p l ,  \&
&      ,|                                 ^&
&,/usr/local/clang/include/absl/base/nullability.h :f257a:l23s:e ,note: 
expanded from macro 'absl_nullable'      
|   ^  
257 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d511e:f52i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _511n | u l l a b l e   _ N uAlBlSaLb_lIeN
T      E| R                      ^N
AL_ATTRIBIn file included from Us2/s2max_distance_targets.ccT:E16_:
CIn file included from A../src/s2/s2max_distance_targets.hP:T27U:
RIn file included from E../src/s2/s1angle.hD:_28B:
YIn file included from (../src/s2/s2point.ht:h25i:
sIn file included from )../src/s2/util/coding/coder.h):)36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 504\:
1      :|                                                     ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:/usr/local/clang/include/absl/log/internal/check_op.h31::4989::35 :note:  macro 'ABSL_INTERNAL_IF_true' defined here
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
   31 | #  d498e | f i n e   A BiSIn file included from nLs2/s2hausdorff_distance_query.cct_: I20Nv:
T1In file included from E,../src/s2/s2closest_edge_query.hR :Ni34nA:
tLIn file included from  _../src/s2/s2closest_edge_query_base.hIvF:2_32t,:
 rIn file included from uc/usr/local/clang/include/absl/container/btree_set.heo:(ni66sf:
_t/usr/local/clang/include/absl/container/internal/btree_container.h s:ca523ht:ai31rs:*f  iwarning: aepassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]bd
s,l _  .n.523.o) | n  ni fu_ sl la   te xi p sr tf iee dx
 t       ) |   {        ^   
 f a l s e ,   f a l s eIn file included from  )s2/s2loop.cc ; :
 18      \:
| 
                              ^In file included from       
../src/s2/s2loop.h| :                                  ^/usr/local/clang/include/absl/container/internal/btree_container.h34
::
496/usr/local/clang/include/absl/base/nullability.hIn file included from ::../src/s2/mutable_s2shape_index.h9241:::30 22:
note: :In file included from macro 'ABSL_INTERNAL_X' defined here /usr/local/clang/include/absl/container/btree_map.hnote: 
:expanded from macro 'absl_nonnull'67
:
  /usr/local/clang/include/absl/container/internal/btree_container.h  496:241 | 588 | #:d#ed3fei:fnie n warning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]A B
aSbLs_lI  _Nn588ToE | nR nN uAAlLlB_ SX_L(N_FoIunnNncuT,El RlCN
aA      lL| l_                     ^eX
e(,i nKsQeuratl_,o rM_Qausasli,g nK,V ailnusee,r tM_Voarl_uaes,s i.g.n._)h i n t _ i\m
p      l| ,        ^ 
&&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))       /usr/local/clang/include/absl/container/internal/btree_container.h : 522 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       522  |     \A
B      S| L                                              ^~~~_
INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_/usr/local/clang/include/absl/container/internal/btree_container.hX:(524i:n3s:e rwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
or_a  s524s | i g nA,B SiLn_sIeNrTtE_RoNrA_La_sXs(iignns_ehritn_to_ri_mapsls,i g&n&,,  i&n&s,e rttr_uoer,_
a      s| s  ^i
gn_/usr/local/clang/include/absl/container/internal/btree_container.hi:m509p:l52,:  cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
st   &509, |   c o n s t   & , 
       A| B  ^S
L_/usr/local/clang/include/absl/container/internal/btree_container.hI:N509T:E52R:N Anote: Lexpanded from macro 'ABSL_INTERNAL_X'_
ATT  R509I | B U T E _ C A P T U RAEBDS_LB_YI(NtThEiRsN)A)L,_ A T T R I B U T E _ C A P T U R E D _ B Y ( t h\i
s      )| )                                                   ^,
   /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e f i n e\ 
A      B| S                                                   ^L
_I/usr/local/clang/include/absl/container/internal/common.hN:T32E:R9N:A Lnote: _macro 'ABSL_INTERNAL_IF_false' defined hereI
F_t   r32u | e#(dieff_isnaet iAsBfSiLe_In file included from dIs2/s2max_distance_targets.ccN,:T 16E.:
R.In file included from N.../src/s2/s2max_distance_targets.hA):L 27_i:
IfIn file included from F_../src/s2/s1angle.h_s:fa28at:
liIn file included from ss../src/s2/s2point.hef:(i25ie:
fdIn file included from _
../src/s2/util/coding/coder.hs      :a| 36        ^t:

iIn file included from s../src/s2/base/casts.hf:i36e:
dIn file included from ,../src/s2/base/logging.h :.21.:
.In file included from )/usr/local/clang/include/absl/log/check.h :_37In file included from _:
s2/s2loop.ccVIn file included from :A/usr/local/clang/include/absl/log/internal/check_impl.h18_::
A21In file included from R:
../src/s2/s2loop.hG:/usr/local/clang/include/absl/log/internal/check_op.hS34:_:
505_In file included from :
../src/s2/mutable_s2shape_index.h1      ::| 30         ^:
warning: 
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/btree_container.h  :505590 | :In file included from A3s2/s2hausdorff_distance_query.ccB::S 20Lwarning: :
_'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from L
O../src/s2/s2closest_edge_query.hG:_34I:
NIn file included from T  ../src/s2/s2closest_edge_query_base.hE590:R | 32N :
A In file included from LA_/usr/local/clang/include/absl/container/btree_set.hBC:SH66EL:
C/usr/local/clang/include/absl/container/internal/btree_container.h_K:_I524ON:PT3_E:IR MNPwarning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]LL
(_CXh(  ei524cn | ks_ eL rTA,Bt S_<Lo)_
rI      _N| aT^sE
sRi/usr/local/clang/include/absl/log/internal/check_op.hNg:An488L,:_ 32Xi:(n isnnote: esexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'er
rtt_  _o488or | r_ _ aaissnssilgiinng,e n ic_nohsniesrnttet_xo_prri_ mapcsolsni,sgt n _&cih&mapr,l*,  & ac&bos,nls _tnt u&rl,lu acebol,nes
 tn       a&m| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
#
      #| I    ^m591
p | /usr/local/clang/include/absl/container/internal/btree_container.hl :( 511  :  52  :    note:   expanded from macro 'ABSL_INTERNAL_X'   
        511   |                  \ 
       A| B                               ^S
L_ I /usr/local/clang/include/absl/base/nullability.hN :T 257Ef:aR23Nl:As eL,note:  _cexpanded from macro 'absl_nullable'oAn
sTt  _Ti257tRe | I#rBdUaetTofEir_n(CehA PaiTnbtUs)Rl E_DAn_uBBlSYLl_(IatNbThlEiRes N)A_)N)Lu_ ClO MlM Aa) ;b l
 e       
 |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|  
                      ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :In file included from   s2/s2max_distance_targets.cc note: :expanded from macro 'ABSL_INTERNAL_X' 16 
:
 In file included from  ../src/s2/s2max_distance_targets.h\:  
27509      :
 | | In file included from                                                     ^../src/s2/s1angle.h 
: /usr/local/clang/include/absl/container/internal/common.h28 ::
 31In file included from  :../src/s2/s2point.h 9: :25  :
 note: In file included from macro 'ABSL_INTERNAL_IF_true' defined hereA../src/s2/util/coding/coder.h
B:S36   L:
31_In file included from  | I../src/s2/base/casts.h#N:dT36eE:
RfIn file included from iN../src/s2/base/logging.hnA:eL21 _:
AAIn file included from BT/usr/local/clang/include/absl/log/check.hST:LR37_I:
IBIn file included from NU/usr/local/clang/include/absl/log/internal/check_impl.hTT:EE21R_:
NC/usr/local/clang/include/absl/log/internal/check_op.hAA:LP505_T:UI1FR:_E tDwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Br
uYe/usr/local/clang/include/absl/log/internal/check_op.h((:ti489fh:i_47ss:a) t)note: i,expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's 
f i   e 489d  | ,    .  . .  )   c iof n_ ssta  tT i1s &f  ive1 d,
        c | o         ^n 
s t   T\2
&       | v                                              ^~~~2
, In file included from cs2/s2hausdorff_distance_query.cco:n20s:
tIn file included from /usr/local/clang/include/absl/container/internal/btree_container.h ../src/s2/s2closest_edge_query.hc::h59034a::
r3In file included from *:../src/s2/s2closest_edge_query_base.h  :warning: a32passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b:

sIn file included from l/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/btree_set.h_::n51166o::
n52n/usr/local/clang/include/absl/container/internal/btree_container.h:u:l 524lnote: : expanded from macro 'ABSL_INTERNAL_X'3e
:x pwarning:   r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]511t
e | x t )    {524   |         A B \S
 L       _| IA                                              ^NB
TSEL/usr/local/clang/include/absl/base/nullability.hR_:NI241AN:LT22_E:XR N(Anote: iexpanded from macro 'absl_nonnull'Ln
_sA  eT241rT | t#R_dIoerBf_iUansTesE ia_gbnCs,lA _PinnTosnUenRruEtl_Dlo _r__NBaoYsns(niugtlnhl_
ii      sm| )p                     ^)l
),   c o n s t   & ,   c o n s t   & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 \  
525       | |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  | f#adlesfei,n et rAuBeS)L;_
I      N| T                  ~~~~~~~~~~~~E
RNA/usr/local/clang/include/absl/container/internal/btree_container.hL:_511I:F47_:f anote: lIn file included from expanded from macro 'ABSL_INTERNAL_X'ss2/s2max_distance_targets.cc
e:(16  i:
511fIn file included from  | _../src/s2/s2max_distance_targets.h s: a27t :
 iIn file included from  s../src/s2/s1angle.h f:i 28 e:
 dIn file included from  ,../src/s2/s2point.hA B:.S.25L.:
_)In file included from I ../src/s2/util/coding/coder.hN_:T_36EV:
RAIn file included from N_../src/s2/base/casts.hAA:LR36_G:
ASIn file included from T_../src/s2/base/logging.hT_:R
21I      :
B| In file included from U        ^/usr/local/clang/include/absl/log/check.hT
:E37_:
CIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hP:T21U:
R/usr/local/clang/include/absl/log/internal/check_op.hE:D505_:B1Y:( twarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
s)/usr/local/clang/include/absl/log/internal/check_op.h):)497 : 32 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
       497  |      i n l i n e   c o\n
s      t| e                                              ^~~~x
pr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2max_distance_targets.cc
:16:
In file included from   ../src/s2/s2max_distance_targets.h527: | 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.ht:r36u:
eIn file included from ,../src/s2/base/logging.h :f21a:
lIn file included from s/usr/local/clang/include/absl/log/check.he:)37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                             ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::505496::19::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]macro 'ABSL_INTERNAL_X' defined here

/usr/local/clang/include/absl/log/internal/check_op.h:498  :49635 | :# dnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'f
ine   498A | B S L _ I NIn file included from  Tis2/s2loop.ccEnR:tN A18vL1:
_,In file included from X ../src/s2/s2loop.h(i:Fn34utn:
 cIn file included from v,../src/s2/mutable_s2shape_index.h2 :,C30 a:
clIn file included from oln/usr/local/clang/include/absl/container/btree_map.hes:et67, :
 c/usr/local/clang/include/absl/container/internal/btree_container.hKhQ:aur592a*:l 3,a :bM sQlwarning: u_passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]an
lo,n nKu  Vl592al | l u eex ,p ArMtBVeaSxlLtu)_e I,{N  T. .E .R ) N   A   L   _ \X 
( i       n|  s        ^ e
r t _\o
r      _| a                                  ^s
si/usr/local/clang/include/absl/base/nullability.hg:n241,: 22i:n snote: eexpanded from macro 'absl_nonnull'r
t_  o241r | _#adsesfiignne_ haibnstl__inmopnln,u l&l& ,_ N&o&n,n utlrlu
e      ,| 
                     ^      
|   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           /usr/local/clang/include/absl/container/internal/btree_container.hA:B526S:L3_:I Nwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]E
RNAL  _526A | T T RAIBBSULT_EI_NCTAEPRTNUARLE_DX_(BiYn(stehrits_)o)r,_ a s s i g n ,   i n s e r t _ o r _ a s s i g n\_
i      m| p                                                   ^l
, /usr/local/clang/include/absl/container/internal/common.hc:o31n:s9t:  &note: ,macro 'ABSL_INTERNAL_IF_true' defined here 
con   s31t |  #&d,
      | e  ^f
in/usr/local/clang/include/absl/container/internal/btree_container.he: 509A:B52S:L _note: Iexpanded from macro 'ABSL_INTERNAL_X'N
TER  N509A | L _ I F _ t r u e ( iAfB_SsLa_tIiNsTfEiReNdA,L _.A.T.T)R IiBfU_TsEa_tCiAsPfTiUeRdE
D      _| B        ^Y
(this)),        In file included from  s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h\:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                                                   ^:
592:/usr/local/clang/include/absl/container/internal/common.h3::31 :warning: 9'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
  592    | 31  |  #AdBeSfLi_nIeN TAEBRSNLA_LI_NXT(EiRnNsAeLr_tI_Fo_rt_rauses(iigfn_,s aitnissefrite_do,r _.a.s.s)i ginf__hsiantti_sifmipeld,
       &| &        ^,
 &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from   s2/s2hausdorff_distance_query.cc593: | 20 :
 In file included from  ../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h :t526r:u3e:,  warning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nst_i  t526e | r a tAoBrS(Lh_iInNtT)E RANBASLL__XI(NiTnEsReNrAtL__oCrO_MaMsAs)i;g
n      ,|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
nse/usr/local/clang/include/absl/container/internal/btree_container.hr:t509_:o47r:_ anote: sexpanded from macro 'ABSL_INTERNAL_X's
ign  _509i | m p l ,   c o n s t  A&B,S Lc_oInNsTtE R&N,A
L      _| A  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~T
TR  I527B | U T E _ C A P T U R E D _ B Y ( t h itsr)u)e,,   f a l s e ) ; 
        |                    ~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X'\

      |                                               ^~~~  
509 |       /usr/local/clang/include/absl/container/internal/btree_container.h : 592 : 3A:B Swarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
I/usr/local/clang/include/absl/container/internal/btree_container.hN:T511E:R52N:A Lnote: _expanded from macro 'ABSL_INTERNAL_X'A
TTR  I511B | U T E _ C A P T U R EADB_SBLY_(ItNhTiEsR)N)A,L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t\h
i      s| )                                              ^~~~)
)      /usr/local/clang/include/absl/container/internal/btree_container.h : 526 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X'\

      |                                                    ^  
511 | /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
 A   B31S | L#_dIeNfTiEnReN AALB_SALT_TIRNITBEURTNEA_LC_AIPFT_UtRrEuDe_(BiYf(_tshaitsi)s)f)i e d ,   . . . )   i f _ s a t i s f i e d 
        | \        ^

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
In file included from s2/s2loop.cc:   1832:
 | In file included from #../src/s2/s2loop.hd:e34f:
iIn file included from n../src/s2/mutable_s2shape_index.he: 30A:
BIn file included from S/usr/local/clang/include/absl/container/btree_map.hL:_67I:
N/usr/local/clang/include/absl/container/internal/btree_container.hT:E592R:N3A:L _warning: I'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]F
_fal  s592e | ( i fA_BsSaLt_iIsNfTiEeRdN,A L._.X.()i n_s_eVrAt__AoRrG_Sa_s_s
i      g| n        ^,
 insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2hausdorff_distance_query.cc::51120::
47In file included from :../src/s2/s2closest_edge_query.h :note: 34expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2closest_edge_query_base.h:32  :
511In file included from  | /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 529 : 29 :  Awarning: Bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]S
L_I  N529T | E R N A L _ A T T R I B U T  E _ C AtPrTuUeR,E Dt_rBuYe()t;h
i      s| )                            ^)
) /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
      496  |  # d e f i n e   A\B
S      L| _                                              ^~~~IIn file included from 
Ns2/s2max_distance_targets.ccT:E16R:
NIn file included from A../src/s2/s2max_distance_targets.hL:_27X:
(In file included from F../src/s2/s1angle.hu:n28c:
,In file included from  ../src/s2/s2point.hC:a25l:
lIn file included from e../src/s2/util/coding/coder.he:,36 :
KIn file included from Q../src/s2/base/casts.hu:a36l:
,In file included from  ../src/s2/base/logging.hM:Q21u:
aIn file included from l/usr/local/clang/include/absl/log/check.h,: 37K:
VIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hl:u21e:
, /usr/local/clang/include/absl/log/internal/check_op.hM:V506a:l1u:e ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension].
..)    506  |  A B\S
L      _| L        ^O
G_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline conste/usr/local/clang/include/absl/container/internal/btree_container.hx:p618r: 64c:o nwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
   c618h | a r *A BaSbLs_lI_NnTuElRlNaAb/usr/local/clang/include/absl/container/internal/btree_container.hLl:e_528 X:n(3at:mr eywarning: #_passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#e
Immp  lp528la | (  c  eA ,B  S Lt _ rI yN T_ E eR mN pA lL a_ Xc (e i_ n\is
em      rp| tl                               ^_,
o rc/usr/local/clang/include/absl/base/nullability.h_o:an257ss:st23i :g& n,note: ,expanded from macro 'absl_nullable'  
fi  an257sl | e#srdete_)foi;rn_
ea       sa| sb                                                               ^isg
ln__/usr/local/clang/include/absl/container/internal/btree_container.hniu:ml596pll:a,b9 lc:eo  n_snote: Ntmacro 'ABSL_INTERNAL_X' defined hereu 
l&l,a   bc596lo | en
#s      dt| e                       ^f&
,i
n      e|    ^A
BS/usr/local/clang/include/absl/container/internal/btree_container.hL:In file included from _509s2/s2max_distance_targets.ccI::N52T16:E:
 RIn file included from note: N../src/s2/s2max_distance_targets.hexpanded from macro 'ABSL_INTERNAL_X'A:
L27_:
  XIn file included from 509(../src/s2/s1angle.h | F: u28 n:
 cIn file included from  ,../src/s2/s2point.h  : C25 a:
 lIn file included from l ../src/s2/util/coding/coder.he :eA36B,:
S In file included from LK../src/s2/base/casts.h_Q:Iu36Na:
TlEIn file included from R,../src/s2/base/logging.hN :AK21LV:
_aIn file included from Al/usr/local/clang/include/absl/log/check.hTu:Te37R,:
I In file included from B.U/usr/local/clang/include/absl/log/internal/check_impl.h.T:E.21)_ :
 /usr/local/clang/include/absl/log/internal/check_op.hC :A 506P :T 1U :R  E warning: D type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_ 
B /usr/local/clang/include/absl/log/internal/check_op.h Y: (489 t:h 47i :s  ) note: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' ,
      \ 489 
 |           |           ^  
     c o n s t   T 1 &   v 1 ,  \c
o      n| s                                                   ^t
 T/usr/local/clang/include/absl/container/internal/common.h2:&31 :v92:,  note: cmacro 'ABSL_INTERNAL_IF_true' defined hereo
nst    31c | h#adre*f ianbes lA_BnSoLn_nIuNlTlE ReNxApLr_tIeFx_tt)r u{e ( i f _ s\a
t      i| s                                              ^f
ie/usr/local/clang/include/absl/base/nullability.hd:,241 :.22.:. )note:  expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende
       a| b        ^s
l_nonnull _Nonnul/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from l:s2/s2hausdorff_distance_query.cc
618:      :20| 3:
                     ^:In file included from 
 ../src/s2/s2closest_edge_query.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]34
:
In file included from ../src/s2/s2closest_edge_query_base.h:32  :
618In file included from  | /usr/local/clang/include/absl/container/btree_set.h : 66A:
B/usr/local/clang/include/absl/container/internal/btree_container.hS:L528_:I3N:T Ewarning: R'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
AL_X(  t528r | y _ eAmBpSlLa_cIeN,T EtRrNyA_Le_mXp(liancsee_ritm_polr,_ acsosnisgtn ,& ,i In file included from nfs2/s2max_distance_targets.ccsa:el16rs:
teIn file included from _)../src/s2/s2max_distance_targets.ho;:r
27_      :
a| In file included from s  ^../src/s2/s1angle.hs
:i28/usr/local/clang/include/absl/container/internal/btree_container.hg:
:nIn file included from 611_../src/s2/s2point.hi::m5225p::
l In file included from ,note: ../src/s2/util/coding/coder.h expanded from macro 'ABSL_INTERNAL_X':c
36o:
nIn file included from   s../src/s2/base/casts.ht611:  | 36& :
, In file included from   ../src/s2/base/logging.hc :o 21n :
s In file included from  t/usr/local/clang/include/absl/log/check.h  :& 37,A:
B
In file included from S      /usr/local/clang/include/absl/log/internal/check_impl.hL| :_  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~21I
:
N  /usr/local/clang/include/absl/log/internal/check_op.hT529E:R | 506 N: A1 L: _  warning: A type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T 
 T/usr/local/clang/include/absl/log/internal/check_op.h R:I 497B :U 32 T: E  _note: C expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'A 
 PtT  rU497uR | eE ,D  _itnBrluYien)e(; 
tc      oh| n                  ~~~~~~~~~~~is
tse)/usr/local/clang/include/absl/container/internal/btree_container.hx):p,509 r:  47c :o   nnote: s expanded from macro 'ABSL_INTERNAL_X't 
  c h  a 509r  | *    a  b  s l  _  n u  l l AaB bSl Le_  In Na T mE eR# N#\AI
Lm      _p| AlT                                                   ^(T 
R I/usr/local/clang/include/absl/container/internal/common.h B: U 32T E: _ 9C :A P  T note: U macro 'ABSL_INTERNAL_IF_false' defined hereR 
E D    _ 32B Y |  (\#t
hd      ie| s                               ^f)
i)n/usr/local/clang/include/absl/base/nullability.h,e:  257 A:B 23S :L   _note:  expanded from macro 'absl_nullable'I 
 N T   E257 R |  N# Ad Le f_ iI nF e _  af b as ll\_
sn      ue| l(                                              ^~~~li
afb_lsea /usr/local/clang/include/absl/container/internal/btree_container.ht_:iN528us:lf3li:ea dbwarning: l,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e 

./usr/local/clang/include/absl/container/internal/btree_container.h      .:| .511                      ^):
 52_:_ Vnote: Aexpanded from macro 'ABSL_INTERNAL_X'_
In file included from As2/s2max_distance_targets.ccR  :G51116S | :
 _In file included from  _../src/s2/s2max_distance_targets.h 
:       27 | :
         ^In file included from  
../src/s2/s1angle.h : 28 :
AIn file included from B../src/s2/s2point.hS:L25_:
IIn file included from N../src/s2/util/coding/coder.hT:E36R:
NIn file included from A../src/s2/base/casts.hL:_36A:
TIn file included from T../src/s2/base/logging.hR:I21B:
UIn file included from T/usr/local/clang/include/absl/log/check.hE:_37C:
AIn file included from P/usr/local/clang/include/absl/log/internal/check_impl.hT:U21R:
E/usr/local/clang/include/absl/log/internal/check_op.hD:_506B:Y1(:t hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
))/usr/local/clang/include/absl/log/internal/check_op.h): 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
In file included from    s2/s2loop.cc 498 : |  18   :
   In file included from   ../src/s2/s2loop.h   : i34 n:
 t In file included from   ../src/s2/mutable_s2shape_index.hv 1: ,\30 
i:
      nIn file included from | t                                                   ^/usr/local/clang/include/absl/container/btree_map.h 
v:2/usr/local/clang/include/absl/container/internal/common.h67,: :
31c:o/usr/local/clang/include/absl/container/internal/btree_container.h9n::s619 t:note:  63macro 'ABSL_INTERNAL_IF_true' defined herec:
h a   warning: r31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]* | 
 #adbes  fl619i_n | n eo  nAAnBuBSlSLlL_ _IeINxNTpTErERRtNeANxLAt_)LI _F{_X t (r tu er ( yi _f e_ ms ap t li as fc ie e ,d\ ,
t       r.| y.                                  ^_.
e)m/usr/local/clang/include/absl/base/nullability.h p:il241fa:_c22se:a_ tinote: iexpanded from macro 'absl_nonnull'ms
pf  il241e, |  d#c
do      en| f        ^si
nte  &a,b stlr_uneoIn file included from )ns2/s2hausdorff_distance_query.ccn;:u20l
:
l      In file included from  | ../src/s2/s2closest_edge_query.h_                                                              ^:N
34o:
/usr/local/clang/include/absl/container/internal/btree_container.hnIn file included from n:../src/s2/s2closest_edge_query_base.hu596:l:32l9:

:In file included from        /usr/local/clang/include/absl/container/btree_set.h| note: :                     ^macro 'ABSL_INTERNAL_X' defined here66

:
/usr/local/clang/include/absl/container/internal/btree_container.h:  528596: | 3#:d ewarning: f'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
ne AB  S528L | _ I NATBESRLN_AILN_TXE(RFNuAnLc_,X (Cianlsleeret,_ oKrQ_uaasls,i gKnV,a liunes,e r.t._.o)r _ a s s i g n _ i m p l ,   c o n s t   & ,\ 
c      o| n        ^s
t &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))) /usr/local/clang/include/absl/container/internal/btree_container.h : 619 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      619  |      A B S L _ I N\T
E      R| N                                              ^~~~A
L_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),     /usr/local/clang/include/absl/container/internal/btree_container.h : 532 : 24 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
     532  |                 \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 :f9a:l snote: emacro 'ABSL_INTERNAL_IF_true' defined here)
;
         | 31                       ^ | 
#d/usr/local/clang/include/absl/container/internal/btree_container.he:f496i:n9e:  Anote: Bmacro 'ABSL_INTERNAL_X' defined hereS
L_I  N496T | E#RdNeAfLi_nIeF _AtBrSuLe_(IiNfT_EsRaNtAiLs_fXi(eFdu,n c.,. .C)a lilfe_es,a tKiQsufaile,d 
M      Q| u        ^a
l, KValue, MValue,In file included from  s2/s2loop.cc.:.18.:
)In file included from  ../src/s2/s2loop.h : 34 :
 In file included from \../src/s2/mutable_s2shape_index.h
:      30| :
        ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),    /usr/local/clang/include/absl/container/internal/btree_container.h : 531 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       531  |      A B S L _\I
N      T| E                                              ^~~~R
NAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL/usr/local/clang/include/absl/container/internal/btree_container.h_:I620N:T59E:R Nwarning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L
_AT  T620R | I B UATBES_LC_AIPNTTUERRENDA_LB_YX((tthriys_)e)m,p l a c e ,   t r y _ e m p l a c e _ i m p l ,  \&
&      ,|                                                     ^f
al/usr/local/clang/include/absl/container/internal/common.hs:e32):;9
:       | note:                                                           ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/container/internal/btree_container.h:   59632: | 9#:d enote: fmacro 'ABSL_INTERNAL_X' defined herei
ne   A596B | S#Ld_eIfNiTnEeR NAABLS_LI_FI_NfTaElRse(if_satisfied,N A.L._.X)( F_u_nVcA,_ ACRaGlSl_e_e
,       | K        ^Q
ual, KValueIn file included from ,s2/s2hausdorff_distance_query.cc :.20.:
.In file included from )../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 531 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]\

      |         ^
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_A/usr/local/clang/include/absl/container/internal/btree_container.hT:T620R:I3B:U Twarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
CAP  T620U | R E DA_BBSYL(_tIhNiTsE)R)N)A L _ X ( t r y _ e m p l a c e ,   t r y _ e m p\l
a      c| e                                                   ^_
im/usr/local/clang/include/absl/container/internal/common.hp:l32,: 9&:& ,note:  macro 'ABSL_INTERNAL_IF_false' defined heref
als   In file included from e32s2/s2max_distance_targets.cc) | :;#16d
:
e      In file included from f| ../src/s2/s2max_distance_targets.hi  ^:n
27e:
 /usr/local/clang/include/absl/container/internal/btree_container.hIn file included from A:../src/s2/s1angle.hB611:S:28L52:
_:In file included from I ../src/s2/s2point.hNnote: :expanded from macro 'ABSL_INTERNAL_X'T25E
:
RIn file included from N../src/s2/util/coding/coder.hA  :L61136_ | :
I In file included from F ../src/s2/base/casts.h_ :f 36a :
l In file included from s ../src/s2/base/logging.he :( 21i :
fAIn file included from _B/usr/local/clang/include/absl/log/check.hsS:aL37_t:
iIsIn file included from Nf/usr/local/clang/include/absl/log/internal/check_impl.hiT:eE21dR:
N,/usr/local/clang/include/absl/log/internal/check_op.h A:.L507._:.A)1T :T_ _Rwarning: VIAtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B_
AURT  GE507S_ | _AC_In file included from BA
s2/s2loop_measures.ccSP      :LT| 18_U        ^:
LR
In file included from OE../src/s2/s2loop_measures.hDG:__I34BN:
YTIn file included from (E../src/s2/s2edge_crossings.htR:NhA47iL:
s_In file included from )C../src/s2/s2predicates.hH)E:C,K55_ :
 In file included from O /usr/local/clang/include/absl/flags/flag.hs2/s2hausdorff_distance_query.ccP _:: I11020 M::
 P29In file included from  L:../src/s2/s2closest_edge_query.h ( :warning:  C34htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e :

c In file included from k   ../src/s2/s2closest_edge_query_base.h_110 :G |  v32T o :
,i dIn file included from   > /usr/local/clang/include/absl/container/btree_set.h )S: 
e66       t:
 | F^/usr/local/clang/include/absl/container/internal/btree_container.h l
a: g534/usr/local/clang/include/absl/log/internal/check_op.h (\::a
b23488      s::| l                                                   ^ 32:
::warning: F/usr/local/clang/include/absl/container/internal/common.h passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l:note: 
a32expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'g:<  
9T534:>   |  *488 note:   |    macro 'ABSL_INTERNAL_IF_false' defined herea  
bi s   ln_ 32ln  | io #nn den e u fcl iol nn  esf  tl Aea Bxg Sp,tLr r_ cuIcoeNon)Tns;Est
Rt       N T| Ac&                      ^Lh 
_a/usr/local/clang/include/absl/container/internal/btree_container.hvI)r:F _*496 {f:a
a9b      l:s| s                            ^ le
(note: _macro 'ABSL_INTERNAL_X' defined hereni/usr/local/clang/include/absl/base/nullability.h
uf:l_  241ls496:aa | 22bt#:lid esenote:  ffexpanded from macro 'absl_nonnull'nii
aen  mde241e,  | # A##.BdI.Sem.Lfp)_il In(_Ne _T  VEaRb ANs _Al AL_ R_n GXo S(n _Fn _uu 
nl       cl | ,          ^ _ 
CN a ol ln e\ne
,u      l | K                               ^lQ

u      a/usr/local/clang/include/absl/base/nullability.h| l:,                     ^257 
:M23Q:u anote: lexpanded from macro 'absl_nullable',
 K  V257a | l#udee,f iMnVea In file included from las2/s2loop.ccube:s,l18 _.:
n.In file included from u.l../src/s2/s2loop.h)l a :b l34 e:
  \_In file included from 
N../src/s2/mutable_s2shape_index.h:In file included from       u30ls2/s2loop_measures.cc| :
l:        ^In file included from a18
/usr/local/clang/include/absl/container/btree_map.hb:
l:In file included from e67../src/s2/s2loop_measures.h
:
:      /usr/local/clang/include/absl/container/internal/btree_container.h34| ::
                      ^621In file included from 
:../src/s2/s2edge_crossings.h58::47 :
In file included from warning: ../src/s2/s2predicates.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]55
:
/usr/local/clang/include/absl/flags/flag.h:118  :621In file included from 29 | s2/s2max_distance_targets.cc: :  16warning: A:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]BIn file included from 
S../src/s2/s2max_distance_targets.hL:  _27118I:
 | NvIn file included from ToE../src/s2/s1angle.hiRd:N A28SLe:
_tIn file included from XF(../src/s2/s2point.hlta:rg25y(_:
aebIn file included from ms../src/s2/util/coding/coder.hpl:l:a36:cF:
elIn file included from ,a/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/casts.h gt<::rT53336y>::
_*e3In file included from  ma:../src/s2/base/logging.hpbl :salwarning: 21c_epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
n_
In file included from oin/usr/local/clang/include/absl/log/check.hm  n:p533u37l | l:
l,  In file included from   f/usr/local/clang/include/absl/log/internal/check_impl.hA&l:aB&21gS,:
,L /usr/local/clang/include/absl/log/internal/check_op.h _tIr:cNu507oTe:nE)1sR;:tN
  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      VL
| &                                                         ^_/usr/local/clang/include/absl/log/internal/check_op.hX 
v:()/usr/local/clang/include/absl/container/internal/btree_container.h 489i:{:
n59647      s::| e9                             ^r:note: 
t expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_/usr/local/clang/include/absl/base/nullability.h
note: o:macro 'ABSL_INTERNAL_X' defined herer  _241
489a: | s  22 s i 596:g  |  #n ,  note: dcieonfnssietrn tTe_1o &r A_Bva1Ss,sL i_cgIoNnnT_sEitmR pTNl2,A&  Lcvo_2n,Xs t(c o&Fn,us tn& &cc,,h  afrCa*la saleb,lse
le      _,| n  ^ o
nK/usr/local/clang/include/absl/container/internal/btree_container.hnQ:uu509la:ll52 ,:e  xKnote: pexpanded from macro 'ABSL_INTERNAL_X'rV
tae  xl509tu | ) e  {,      .   .   .\ 
)       A | B                                              ^ S
L _/usr/local/clang/include/absl/base/nullability.hI :N 241T :E 22R :N  Anote: Lexpanded from macro 'absl_nonnull' _
A   T 241T  | R #Id BeU fT iEn _eC  A aPb TsUlR _\EnD
o_n      BnY| u        ^(l
tlh i_sN)o)n,n u l l 
        |                       ^ 
                \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      | /usr/local/clang/include/absl/container/internal/btree_container.h        ^:
621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  In file included from 621s2/s2hausdorff_distance_query.cc | : 20 :
AIn file included from In file included from B../src/s2/s2closest_edge_query.hs2/s2max_distance_targets.ccS::L34_16:
I:
In file included from NIn file included from ../src/s2/s2closest_edge_query_base.hT../src/s2/s2max_distance_targets.h:E:32R27:
N:
In file included from AIn file included from /usr/local/clang/include/absl/container/btree_set.hL../src/s2/s1angle.h:_:66X28:
(/usr/local/clang/include/absl/container/internal/btree_container.h:
t:rIn file included from 533y../src/s2/s2point.h:_:3e25:m:
 pwarning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l../src/s2/util/coding/coder.h
a:c36e  :
,533In file included from   | ../src/s2/base/casts.h t: r36Ay:
B_In file included from Se../src/s2/base/logging.hLm:_p21Il:
NaIn file included from Tc/usr/local/clang/include/absl/log/check.hEe:R_37Ni:
AmIn file included from Lexpanded from macro 'absl_nonnull'p/usr/local/clang/include/absl/log/internal/check_impl.h_
l:X,  21( i241:
&n | /usr/local/clang/include/absl/log/internal/check_op.h&s#:,ed507 re:ttf1r_i:uon erewarning: )_ type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension];aa

s/usr/local/clang/include/absl/log/internal/check_op.hb      ss:| l  ^i497g_
:nn32/usr/local/clang/include/absl/container/internal/btree_container.h,o:: n 611innote: :nuexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'52sl
:el  r  note: _expanded from macro 'ABSL_INTERNAL_X't497_N
o | n   on 611rui | _ln all s
i s      n i| e g                     ^  n
c _oi nm spt le,AxB pScrLo _ncIsotNn Ts&t,E  cR&hN&a,Ar L*f_ aaAblsTslTe_R,In
uB      lU| Tl  ^Ea
_bC/usr/local/clang/include/absl/container/internal/btree_container.hAl:eP511 T:nU52aR:mE eDnote: #_expanded from macro 'ABSL_INTERNAL_X'#B
IYm(  pt511lh | (  i   s  )  )   ,           A  B  S L  _  I  N  T  E  R\N 
A       L | _                               ^ A
T T/usr/local/clang/include/absl/base/nullability.h R:I 257B :U 23T :E  _ note: C expanded from macro 'absl_nullable'A 
P T  \U257
R | E      #Dd| _e                                                   ^Bf
Yi(nt/usr/local/clang/include/absl/container/internal/common.heh: ia31sb):s)l9)_: n  unote:  l macro 'ABSL_INTERNAL_IF_true' defined herel a
 b l    e31    | _ N# ud le l fa bi ln ee 
         A|                        ^ B
 S\L
_      I| N                                                   ^In file included from T
s2/s2max_distance_targets.ccE/usr/local/clang/include/absl/container/internal/common.h:R:16N31A:
L:_In file included from I9F../src/s2/s2max_distance_targets.h_:t:r u27enote: (:
macro 'ABSL_INTERNAL_IF_true' defined hereiIn file included from f
_../src/s2/s1angle.hs:a   28t31i:
s | fIn file included from i#e../src/s2/s2point.hdd:e,25f :
i.In file included from n.../src/s2/util/coding/coder.h.e):  36iA:
BfIn file included from _Ss../src/s2/base/casts.haLt:_i36Is:
NfIn file included from Ti../src/s2/base/logging.hEe:Rd21N
:
A      In file included from L| /usr/local/clang/include/absl/log/check.h_        ^:I
37F:
_In file included from t/usr/local/clang/include/absl/log/internal/check_impl.hr:u21e:
(/usr/local/clang/include/absl/log/internal/check_op.hi:f507_:s1a:t iIn file included from warning: ss2/s2loop.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f:
i18e/usr/local/clang/include/absl/log/internal/check_op.h:
d:In file included from ,498 ../src/s2/s2loop.h:.:35.34:.:
 )In file included from  note: ../src/s2/mutable_s2shape_index.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i:
f30_:
  sIn file included from 498a/usr/local/clang/include/absl/container/btree_map.h | t :i s67 f :
i /usr/local/clang/include/absl/container/internal/btree_container.he :di
n621      t:|          ^v3
1:,  warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
t v2,   621c | o In file included from n s2/s2hausdorff_distance_query.ccsA:tB20 S:
Lc_In file included from IhN../src/s2/s2closest_edge_query.hTaE:RrN34*A:
L _In file included from Xa(../src/s2/s2closest_edge_query_base.htb:rs32ly:
__In file included from ne/usr/local/clang/include/absl/container/btree_set.hom:np66nl:
ua/usr/local/clang/include/absl/container/internal/btree_container.hlc:el,533  :ter3yx_:ep rmwarning: tp'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]el
xatc)e  _ i533{m |   p  l ,A  &B S& L, _ I  tNr uTe E) ;R
 N       A|  L   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_ X
\(
i      /usr/local/clang/include/absl/container/internal/btree_container.hn| s:                                  ^e611
r:t47/usr/local/clang/include/absl/base/nullability.h_::o 241note: r:_expanded from macro 'ABSL_INTERNAL_X'22a
:s snote: i  expanded from macro 'absl_nonnull'g611
n |   , 241   | i #n ds eefr itn _e o r a_b assAls_BingSoLnnn__uIilNmlpT l_,EN RocNnonAnusLlt_l 
A&      T,| T                      ^R&
I&B,U TfEa_lCsAeP,T
U      R| E  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~D
_B  Y534( | t h i s ) ) ,                        t r u e ) ; 
        |                    ~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h :\511
:      47| :                                              ^~~~ 
note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |     /usr/local/clang/include/absl/container/internal/btree_container.h : 622 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       622f | a l sAeB)S;L
_      I| N                       ^T
ER/usr/local/clang/include/absl/container/internal/btree_container.hN:A496L:_9X:( tnote: rmacro 'ABSL_INTERNAL_X' defined herey
_em  p496l | a#cdee,f itnrey _AeBmSpLl_aIcNeT_EhRiNnAtL__iXm(pFlu,n cc,o nCsatl l&e,In file included from e s2/s2metrics.cc,f :KaQ31lu:
saIn file included from el../src/s2/s2metrics.h,,:
 34M      :
Q| uIn file included from   ^a../src/s2/s2coords.h
l:/usr/local/clang/include/absl/container/internal/btree_container.h,105: :
K611VIn file included from :a../src/s2/base/logging.hl52:u:21e ,note:  :
expanded from macro 'ABSL_INTERNAL_X'M
VIn file included from a/usr/local/clang/include/absl/log/check.h  l:u61137e | :
,  In file included from . ./usr/local/clang/include/absl/log/internal/check_impl.h .: )21  :
  In file included from   /usr/local/clang/include/absl/log/internal/check_op.h  :  \41
 :
      AIn file included from B| /usr/local/clang/include/absl/log/internal/strip.hS        ^:L
26_:
IIn file included from N/usr/local/clang/include/absl/log/internal/log_message.hT:E47R:
NIn file included from A/usr/local/clang/include/absl/log/internal/structured_proto.hL:_27A:
TIn file included from T/usr/local/clang/include/absl/log/internal/proto.hR:I34B:
UT/usr/local/clang/include/absl/types/span.hE:_212C:A22P:T Uwarning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]E
D_BY  (212t | h i su)s)i,n g   p o i n t e r   =   T *   a b s l _ n u l l a b\i
l      i| t                                                   ^y
_u/usr/local/clang/include/absl/container/internal/common.hn:k32n:o9w:n ;note: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                      ^
   32 | #d/usr/local/clang/include/absl/base/nullability.he:f289i:n34e:  A/usr/local/clang/include/absl/container/internal/btree_container.hnote: Bexpanded from macro 'absl_nullability_unknown':S
535L  _:289I3 | N#:TdE eRwarning: fNipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]An
Le_ Ia  Fb535_s | fl a_ lAnBsuSelL(_lIiaNfbT_iEslRaNiAttLiy_s_Xfu(ineikndns,oe wr.nt. _.o_r)N_ u_al_slsVi_gAun_nAs,Rp GeiScn_is_fe
ir      et| d_        ^
o
      r| _                                 ^a
ssign_impl, cIn file included from os2/s2metrics.ccn:s31t:
 In file included from &../src/s2/s2metrics.h,: 34&:
&In file included from ,../src/s2/s2coords.h :t105r:
uIn file included from e../src/s2/base/logging.h,:
21      :
| In file included from   ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h509::2152:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'ABSL_INTERNAL_X'41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:  26509:
 | In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 47 :
 In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
 In file included from A/usr/local/clang/include/absl/log/internal/proto.hB:S34L:
_/usr/local/clang/include/absl/types/span.hI:N213T:E34R:N Awarning: Ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
ATT  R213I | B U TuEs_iCnAgP TcUoRnEsDt__BpYo(itnhtiesr) )=,  c o n s t       In file included from  s2/s2loop.cc T:* 18  :
a In file included from b ../src/s2/s2loop.hs :l 34_ :
n In file included from u ../src/s2/mutable_s2shape_index.hl :l 30\a:

bIn file included from       i/usr/local/clang/include/absl/container/btree_map.h| l:i                                                   ^67t
:
y/usr/local/clang/include/absl/container/internal/btree_container.h_/usr/local/clang/include/absl/container/internal/common.h:u:624n31:k:3n9:o: wwarning:  npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]note: ;macro 'ABSL_INTERNAL_IF_true' defined here


      |                                    ^624   
 | 31  | /usr/local/clang/include/absl/base/nullability.h# d:Ae289fB:iSn34eL :A_B Snote: ILexpanded from macro 'absl_nullability_unknown'N_
ITN  ET289RE | RN#NAdALeL__fIXiF(n_tetr yra_bueseml(p_ilnafucl_els,aa tbitisrlfyii_teeydm_,pu ln.akc.n.eo)_w hniif _n_stNa_utilimlspf_liu,en sdc
poe      ncs| it        ^f 
i&e,d 
t      r| u                                 ^e
,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 611s2/s2hausdorff_distance_query.cc::5220::
 In file included from note: ../src/s2/s2closest_edge_query.hexpanded from macro 'ABSL_INTERNAL_X':
34:
In file included from ../src/s2/s2closest_edge_query_base.h  :61132 | :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 535 : 3A:B Swarning: L'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
INTER  N535A | L _ AATBTSRLI_BIUNTTEE_RCNAAPLT_UXR(EiDn_sBeYr(tt_hoirs_)a)s,s i g n ,   i n s e r t _ o r _ a s s i g n _ i m p l\,
       c| o                                                   ^n
st/usr/local/clang/include/absl/container/internal/common.h :&31,: 9&:& ,note:  macro 'ABSL_INTERNAL_IF_true' defined heret
ru   e31, | 
#      d| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
in  e536  | A B S L _ I NIn file included from  Ts2/s2max_distance_targets.cc E: R16 N:
 AIn file included from  L../src/s2/s2max_distance_targets.h _: I27 F:
 _In file included from  t../src/s2/s1angle.h r:fu28ae:
l(In file included from is../src/s2/s2point.hef:)_25;s:

aIn file included from       t../src/s2/util/coding/coder.h| i:                  ~~~~~~s36
f:
iIn file included from /usr/local/clang/include/absl/container/internal/btree_container.he../src/s2/base/casts.h:d:509,36: :
47.In file included from :.../src/s2/base/logging.h .:note: )21expanded from macro 'ABSL_INTERNAL_X' :

iIn file included from f/usr/local/clang/include/absl/log/check.h_  :s50937a | :
 tIn file included from  i/usr/local/clang/include/absl/log/internal/check_impl.h s: f21 i:
 e/usr/local/clang/include/absl/log/internal/check_op.h d:
 511       : | 13A        ^:B
 Swarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
INTE  R511N | AcLo_In file included from nAsTs2/s2loop.cctT: Rc18Ih:
BaUIn file included from rT../src/s2/s2loop.h*E :_a34Cb:
AsIn file included from PlT_../src/s2/mutable_s2shape_index.hUnRu:ElD30l_a:
BbYIn file included from l(e/usr/local/clang/include/absl/container/btree_map.ht :hCih67se)c:
)/usr/local/clang/include/absl/container/internal/btree_container.hk,s: t624 r: c 3m :p t  r warning: u 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e 
I m p l   ( 624
  |         |               ^ A
 B S/usr/local/clang/include/absl/base/nullability.hL : _257I :\N23
T:      E | Rnote: N                                              ^~~~expanded from macro 'absl_nullable'A

L_  X257( | t#r/usr/local/clang/include/absl/container/internal/btree_container.hdy:e_535fe:im3np:el  awarning: acpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]be
s,/usr/local/clang/include/absl/container/internal/btree_container.hl :_t511nr:uy52l_:le amnote: pblexpanded from macro 'ABSL_INTERNAL_X'la
ec e  __511Nh | u li l an tb l _ei 
m       p |  l                      ^,A
 BcSoLn_sIIn file included from tN s2/s2max_distance_targets.ccT&:E,16R :
NtIn file included from Ar../src/s2/s2max_distance_targets.hLu:e_,27
A:
      TIn file included from | T../src/s2/s1angle.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~R:
I28B:
  UIn file included from T625../src/s2/s2point.hE | : _25C :
 A In file included from P ../src/s2/util/coding/coder.hT :U 36 R :
E In file included from  D ../src/s2/base/casts.h_ :B 36Y :
 ( In file included from  tc../src/s2/base/logging.hoh:ni21ss:
t)_In file included from i)/usr/local/clang/include/absl/log/check.ht)e: r37a t:
o rIn file included from ( h/usr/local/clang/include/absl/log/internal/check_impl.h i: n21 t:
)  /usr/local/clang/include/absl/log/internal/check_op.hA B: S512 L: _17 I:N   Twarning:  Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] R
 N A  L 512 _ |   C  O M M\ A
c)      o;| 
                                                   ^n      
s| /usr/local/clang/include/absl/container/internal/common.ht                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~: 
32c:h/usr/local/clang/include/absl/container/internal/btree_container.h9a::r611 *:note:  47macro 'ABSL_INTERNAL_IF_false' defined herea:
b s   lnote: 32expanded from macro 'ABSL_INTERNAL_X'_ | n
#udlel  fa611ib | nle e   AsB1 S,L  _c I oN nTs EtR   NcAAhLaB_rIS*F L_af_basIllNs_eTn(uEilfRl_NasAbalLtei_ ssf2Ai,Te
dT      ,R|  I.                ^B.
.U)/usr/local/clang/include/absl/base/nullability.hT :_E257__:CV23AA:_P ATnote: RUexpanded from macro 'absl_nullable'GR
SE_  D_257_
 | B      #Y| d        ^(e
ftihnies )a)b,s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
 \
      |                                               ^~~~
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const In file included from cs2/s2hausdorff_distance_query.cch:a20r:
*In file included from  ../src/s2/s2closest_edge_query.ha:b34s:
lIn file included from _../src/s2/s2closest_edge_query_base.hn:u32l:
lIn file included from a/usr/local/clang/include/absl/container/btree_set.hb:l66e:
 /usr/local/clang/include/absl/container/internal/btree_container.hs:1538,: 23c:o nwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
 ch  a538r | *   a b s l _ n u l l a b l e   s 2 ,t
r      u| e                                              ^)
;
/usr/local/clang/include/absl/base/nullability.h      :| 257                      ^:
23: /usr/local/clang/include/absl/container/internal/btree_container.h:note: 496expanded from macro 'absl_nullable':
9:   257note:  | macro 'ABSL_INTERNAL_X' defined here#
def  i496n | e# daebfsiln_en uAlBlSaLb_lIeN T_ENRuNlAlLa_bXl(eF
u      n| c                      ^,
 CalleIn file included from es2/s2max_distance_targets.cc,: 16K:
QIn file included from u../src/s2/s2max_distance_targets.ha:l27,:
 In file included from M../src/s2/s1angle.hQ:u28a:
lIn file included from ,../src/s2/s2point.h :K25V:
aIn file included from l../src/s2/util/coding/coder.hu:e36,:
 In file included from M/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/casts.hV::a62636l::
u3In file included from e:../src/s2/base/logging.h, : warning: 21.passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
.
In file included from ./usr/local/clang/include/absl/log/check.h):   37 626:
  |  In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h \:
A21      B:
| S        ^/usr/local/clang/include/absl/log/internal/check_op.hL
:_513I:N17T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_  X513( | t r y _ ecmopnlsatc ec,h atrr*y _aebsmlp_lnaocnen_uhliln te_xipmrptle,x t&)&;,
       f| a                ^l
se/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22/usr/local/clang/include/absl/container/internal/btree_container.h  ^::
 537:/usr/local/clang/include/absl/container/internal/btree_container.hnote: 3:expanded from macro 'absl_nonnull':611
 :warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]52241
: |  #  dnote: 537eexpanded from macro 'ABSL_INTERNAL_X' | f 
i nAeB   Sa611Lb_ | sIl N_ TnE oR nN nA uLl _l X  (_ iNAnoBsSnenLru_tlI_lNo
Tr      E_| Ra                     ^sN
sAiLg_nA,T TiRnIsBeUrTIn file included from tEs2/s2max_distance_targets.cc__:oC16rA:
_PIn file included from aT../src/s2/s2max_distance_targets.hsU:sR27iE:
gDIn file included from n_../src/s2/s1angle.h_B:iY28m(:
ptIn file included from lh../src/s2/s2point.h,i:s 25)c):
o,In file included from n ../src/s2/util/coding/coder.hs :t 36  :
& In file included from , ../src/s2/base/casts.h  :& 36& :
, In file included from   ../src/s2/base/logging.ht :r 21u :
e In file included from , /usr/local/clang/include/absl/log/check.h
 :       37|  :
  ^ In file included from 
 /usr/local/clang/include/absl/log/internal/check_impl.h /usr/local/clang/include/absl/container/internal/btree_container.h: :21 509:
 /usr/local/clang/include/absl/log/internal/check_op.h: :52\514:
:       note: 13expanded from macro 'ABSL_INTERNAL_X'| :
                                                   ^ 
  warning: 509/usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | :
 32 :   9514 : |  c  onote:  nmacro 'ABSL_INTERNAL_IF_false' defined here s 
t  A   cBh32Sa | Lr#_*I dNaeTbEfsRliN_AnnLue_lA lTaATbBRlSIeLB _UCIThNEe_TcCkEAsPRtTrNUcARmLEpD_f_aIBlYFs(_eftaIhmlipssl)e()
(,      i |              ^f _
 s/usr/local/clang/include/absl/base/nullability.h a: t257 i: s23 f: i  e note: d expanded from macro 'absl_nullable', 
  .   . 257.  | ) # d  e _f i_ nV\e
A       a_| bA                                                   ^sR
lG_/usr/local/clang/include/absl/container/internal/common.hSn:u_31l_:l
9a      :b|  lnote:         ^emacro 'ABSL_INTERNAL_IF_true' defined here
 
_Nu   l31l | a#bdleef
i      n| e                      ^ 
ABSL_IIn file included from Ns2/s2max_distance_targets.ccT:E16R:
NIn file included from A../src/s2/s2max_distance_targets.hL:_27I:
FIn file included from _../src/s2/s1angle.ht:r28u:
eIn file included from (../src/s2/s2point.hi:f25_:
sIn file included from a../src/s2/util/coding/coder.ht:i36s:
fIn file included from i../src/s2/base/casts.he:d36,:
 In file included from .../src/s2/base/logging.h.:.21):
 In file included from i/usr/local/clang/include/absl/log/check.hf:_37s:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hi:s21f:
i/usr/local/clang/include/absl/log/internal/check_op.he:d515
:      17| :        ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const In file included from cs2/s2hausdorff_distance_query.cch:a20r:
*In file included from  ../src/s2/s2closest_edge_query.ha:b34s:
lIn file included from _../src/s2/s2closest_edge_query_base.hn:u32l:
lIn file included from a/usr/local/clang/include/absl/container/btree_set.hb:l66e:
 /usr/local/clang/include/absl/container/internal/btree_container.hs:1537,: 3c:o nwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
 char  *537  | a b sAlB_SnLu_lIlNaTbElReN AsL2_,X
(      i| n                ^s
er/usr/local/clang/include/absl/base/nullability.htIn file included from :_s2/s2loop.cc257o::r1823_:
:aIn file included from  s../src/s2/s2loop.hnote: s:expanded from macro 'absl_nullable'i34
g:
n  ,In file included from 257 ../src/s2/mutable_s2shape_index.h | i#:nd30see:
frIn file included from itn/usr/local/clang/include/absl/container/btree_map.h_e:o r67a_:
ba/usr/local/clang/include/absl/container/internal/btree_container.hss:ls628_i:ngu3nl_:li ambwarning: pllpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e,
  _cNou  nls628lt | a b &l, e A
&B      &S| ,                      ^L 
_tIrNuTeE,In file included from R
s2/s2max_distance_targets.ccN      :A| 16  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L:

_In file included from X  ../src/s2/s2max_distance_targets.h(538:t | 27 :
r In file included from y ../src/s2/s1angle.h_ :e 28 m:
 pIn file included from l ../src/s2/s2point.h a: c25 e:
 ,In file included from   ../src/s2/util/coding/coder.h t: r36 y:
 _In file included from  e../src/s2/base/casts.htm:rp36ul:
eaIn file included from )c../src/s2/base/logging.h;e:
_21      h:
| iIn file included from                   ~~~~~n/usr/local/clang/include/absl/log/check.h
t:_/usr/local/clang/include/absl/container/internal/btree_container.h37i::
m509In file included from p:/usr/local/clang/include/absl/log/internal/check_impl.hl47:,:21  :
&note: &/usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'ABSL_INTERNAL_X',:
 515t:  r47509u: | e  ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 
       |     ^ 515 
 |     /usr/local/clang/include/absl/container/internal/btree_container.h   : Ac611Bo:SnL52s_t: Ic Nhnote: TaEexpanded from macro 'ABSL_INTERNAL_X'rR*
N AaL  b_s611AlT | _Tn RuI lBl Ua TbE_CA lP e   TsU 1R, E Dc_AoBBnYsS(ttL hc_ihIsaN)rT)*,E  Ra bN s Al L_ _n u Al l Ta bT lR eI  B sU 2T , E
 _       C|                                                ^A 
 P/usr/local/clang/include/absl/base/nullability.hT :U\257
R:      E23| D:                                              ^~~~_ 
Bnote: Yexpanded from macro 'absl_nullable'(
th  i/usr/local/clang/include/absl/container/internal/btree_container.h257s: | )537#):d,3e :f  i warning: n passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e 
  /usr/local/clang/include/absl/container/internal/btree_container.ha :b 511s :l 52_ :n  u note:  lexpanded from macro 'ABSL_INTERNAL_X'l 
a b   l 511e  |    _  N u  l  l  a b  l \e 

             A| | B                      ^                                                   ^S

L_INTE/usr/local/clang/include/absl/container/internal/common.hR:N31In file included from A:s2/s2max_distance_targets.ccL9:_:16A :
Tnote: In file included from macro 'ABSL_INTERNAL_IF_true' defined hereT../src/s2/s2max_distance_targets.h
R:I27   B:
U31In file included from T | ../src/s2/s1angle.hE#:_d28Ce:
AfIn file included from Pi../src/s2/s2point.hTn:Ue25R :
EAIn file included from DB../src/s2/util/coding/coder.h_S:BL36Y_:
(IIn file included from Nt../src/s2/base/casts.hhT:iE36Rs:
)NIn file included from )A../src/s2/base/logging.h)L: _21 I:
 FIn file included from  _/usr/local/clang/include/absl/log/check.h t: r37 u:
 eIn file included from  (/usr/local/clang/include/absl/log/internal/check_impl.h i: f21 _:
 /usr/local/clang/include/absl/log/internal/check_op.hs : a516 t: i17 s: f  iwarning:  etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] d
 ,    \516
. |        .|                                                     ^. 
 )/usr/local/clang/include/absl/container/internal/common.h c:io31nf:s_9ts: a tcnote: himacro 'ABSL_INTERNAL_IF_true' defined hereas
rf*i    e31ad | b#
sd      le_| fn        ^io
nnen uAlBlS Le_xIpNrTtEeRxNIn file included from tA)L;s2/s2loop.cc_
:I      18F| _:
                ^tIn file included from 
r../src/s2/s2loop.h/usr/local/clang/include/absl/base/nullability.hu::e34(241:
i:In file included from f22_../src/s2/mutable_s2shape_index.h:s: a30note: texpanded from macro 'absl_nonnull'i:

sIn file included from f  i/usr/local/clang/include/absl/container/btree_map.h241e: | d#67,d :
e./usr/local/clang/include/absl/container/internal/btree_container.hf.i:.n)628e : ia3fb_:ssl _awarning: nto'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]in
snfuileld   
_628      N | | o        ^ n
n uAlBlS
L      _| I                     ^N
In file included from Ts2/s2hausdorff_distance_query.ccE:R20N:
AIn file included from L../src/s2/s2closest_edge_query.h_:X34(:
tIn file included from In file included from rs2/s2max_distance_targets.cc../src/s2/s2closest_edge_query_base.hy::_1632e:
:
mIn file included from In file included from p../src/s2/s2max_distance_targets.h/usr/local/clang/include/absl/container/btree_set.hl::a2766c:
:
eIn file included from /usr/local/clang/include/absl/container/internal/btree_container.h,../src/s2/s1angle.h :t:537r28:y:
3_In file included from :e../src/s2/s2point.h m:warning: p25'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l:

aIn file included from c../src/s2/util/coding/coder.he:  _36537h:
 | iIn file included from  n../src/s2/base/casts.h t:_A36iB:
SmIn file included from pL../src/s2/base/logging.hl_:,I21N :
T&In file included from E&/usr/local/clang/include/absl/log/check.hR,:N 37At:
LrIn file included from _u/usr/local/clang/include/absl/log/internal/check_impl.hXe:(,21i
:
n/usr/local/clang/include/absl/log/internal/check_op.h      s:e| 517  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r:t
13_:o   rwarning: 629_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a | 
s s   i 517g  | nc ,o  ni snt s e crh ta _ro *r  _a abs ssl i _ gncnuo_linlmsapbtll_e,  iCcthoeencrskatst t&or,cr a&(s&he,ci mntprttur)eu ,e
AI      mB| p  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~lS
L(_  
I538      N | | T             ^ E
 R /usr/local/clang/include/absl/base/nullability.hN :A 257 L: _23 C: O  Mnote:  Mexpanded from macro 'absl_nullable' A
 )   ;257 
 |  #       dt| er                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~fui
en)e;/usr/local/clang/include/absl/container/internal/btree_container.h 
:a      b611| s                  ~~~~~:l
_47n:/usr/local/clang/include/absl/container/internal/btree_container.hu :lnote: 511lexpanded from macro 'ABSL_INTERNAL_X':a
47b:l   note: e611expanded from macro 'ABSL_INTERNAL_X'  | 
_ N   u 511l  |  l a  b  l e 
          | A B                      ^ S
 L _AIIn file included from BNs2/s2max_distance_targets.ccTS:LE16_R:
INNIn file included from TA../src/s2/s2max_distance_targets.hEL:R_27NA:
ATIn file included from LT../src/s2/s1angle.h_R:AI28TB:
TUIn file included from RT../src/s2/s2point.hIE:B_25UC:
TAIn file included from EP../src/s2/util/coding/coder.h_T:CU36AR:
PEIn file included from TD../src/s2/base/casts.hU_:RB36EY:
D(In file included from _t../src/s2/base/logging.hBh:Yi21(s:
t)In file included from )h/usr/local/clang/include/absl/log/check.h,i:s 37) :
) In file included from ) /usr/local/clang/include/absl/log/internal/check_impl.h  :  21  :
 /usr/local/clang/include/absl/log/internal/check_op.h  :  518  :  17  :     warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
         518   |             c  o\ n
s       t\|  
                                              ^~~~c      
h| a                                              ^~~~r
* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/util/coding/coder.h::54136::
24In file included from :../src/s2/base/casts.h :36warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/base/logging.h:21:
  In file included from 541/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 518 : 47 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 fa  l518s | e ) ; 
       c| o                       ^n
st/usr/local/clang/include/absl/container/internal/btree_container.h :c496h:a9r:*  note: amacro 'ABSL_INTERNAL_X' defined hereb
sl_  n496u | l#ldaebflien es 1A,B ScLo_nIsNtT EcRhNaArL*_ Xa(bFsuln_cn,u lClaalblleee ,s 2K,Q
u      a| l                                              ^,
 MQua/usr/local/clang/include/absl/base/nullability.hl:,257 :K23V:a lnote: uexpanded from macro 'absl_nullable'e
,   M257V | a#ldueef,i n.e. .a)b s l _ n /usr/local/clang/include/absl/container/internal/btree_container.hu\l
:l      a638| b        ^:l
e63 :_ Nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
lable  
638       | |                        ^ 
    const In file included from ks2/s2max_distance_targets.cce:y16_:
aIn file included from r../src/s2/s2max_distance_targets.hg:<27K:
>In file included from  ../src/s2/s1angle.h&:k28 :
AIn file included from B../src/s2/s2point.hS:L25_:
IIn file included from N../src/s2/util/coding/coder.hT:E36R:
NIn file included from A../src/s2/base/casts.hL:_36A:
TIn file included from T../src/s2/base/logging.hR:I21B:
UIn file included from T/usr/local/clang/include/absl/log/check.hE:_37C:
AIn file included from P/usr/local/clang/include/absl/log/internal/check_impl.hT:U21R:
E/usr/local/clang/include/absl/log/internal/check_op.hD:_519B:Y17(:t hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
))  
519 |        |                                                                ^~~~/usr/local/clang/include/absl/container/internal/btree_container.h 
: 540c:o3n:s twarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
har*   540a | b s lA_BnSoLn_nIuNlTlE ReNxApLr_tXe(xitn)s;e
r      t| _                ^o
r_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n ,note:  expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns_li_mnpoln,n u&l&l,  _cNoonnsntu l&l,
       f| a                     ^l
se,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'In file included from 
s2/s2max_distance_targets.cc:16:
In file included from   ../src/s2/s2max_distance_targets.h509: | 27 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25A:
BIn file included from S../src/s2/util/coding/coder.hL:_36I:
NIn file included from T../src/s2/base/casts.hE:R36N:
AIn file included from L../src/s2/base/logging.h_:A21T:
TIn file included from R/usr/local/clang/include/absl/log/check.hI:B37U:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.h_:C21A:
P/usr/local/clang/include/absl/log/internal/check_op.hT:U520R:E13D:_ Bwarning: Ytype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
thi  s520) | )c,o n s t   c h a r *   a b s l _ n u l l a b l e  \C
h      e| c                                                   ^k
st/usr/local/clang/include/absl/container/internal/common.hr:c32a:s9e:c mnote: pmacro 'ABSL_INTERNAL_IF_false' defined heref
als   e32I | m#pdle(f
i      n| e            ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L257_:I23N:T Enote: Rexpanded from macro 'absl_nullable'N
AL  _257I | F#_dfeaflisnee( iafb_ssla_tniuslfliaebdl,e  ._.N.u)l l_a_bVlAe_
A      R| G                      ^S
__
      | In file included from         ^s2/s2max_distance_targets.cc
:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2hausdorff_distance_query.cc25::
20In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2closest_edge_query.h36::
34In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2closest_edge_query_base.h36::
32In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h21::
66In file included from :
/usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/container/internal/btree_container.h37::
540In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h3::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]521
:17:   warning: 540type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
  A  B521S | L _ I N TcEoRnNsAtL _cXh(airn*s earbts_lo_rn_ualslsaibglne,  si1n,s ecrotn_sotr _cahsasri*g na_bismlp_ln,u l&l&a,b lceo nss2t, 
&      ,|                  ^f
al/usr/local/clang/include/absl/base/nullability.hs:e257,:
23      :|    ^
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/btree_container.h
:511:  52257: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e511  | a b s l _ n u l l a bAlBeS L__NIuNlTlEaRbNlAeL
_      A| T                      ^T
RIBUTEIn file included from _s2/s2max_distance_targets.ccC:A16P:
TIn file included from U../src/s2/s2max_distance_targets.hR:E27D:
_In file included from B../src/s2/s1angle.hY:(28t:
hIn file included from i../src/s2/s2point.hs:)25):
)In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
\/usr/local/clang/include/absl/log/internal/check_op.h
:      521| :                                                   ^47
: /usr/local/clang/include/absl/container/internal/common.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]32
:9  :521  | note:  macro 'ABSL_INTERNAL_IF_false' defined here 
  c   o32n | s#td ecfhianre*  AaBbSsLl__InNuTlElRaNbAlLe_ IsF1_,f aclosnes(ti fc_hsaart*i safbiseld_,n u.l.l.a)b l_e_ VsA2_,A
R      G| S                                              ^_
_
/usr/local/clang/include/absl/base/nullability.h      :| 257        ^:
23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2hausdorff_distance_query.ccs2/s2max_distance_targets.cc::2016:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h../src/s2/s2max_distance_targets.h::3427:
:
In file included from In file included from ../src/s2/s2closest_edge_query_base.h../src/s2/s1angle.h::3228:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h../src/s2/s2point.h::6625:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/util/coding/coder.h::54336::
23In file included from :../src/s2/base/casts.h :36warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/base/logging.h:21  :
543In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 522 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
tr  u522e | ) ; 
        | c                      ^o
ns/usr/local/clang/include/absl/container/internal/btree_container.ht: 496c:h9a:r *note:  macro 'ABSL_INTERNAL_X' defined herea
bsl  _496n | o#ndneufliln ee xApBrStLe_xItN)T;E
R      N| A                ^L
_X/usr/local/clang/include/absl/base/nullability.h(:F241u:n22c:,  note: Cexpanded from macro 'absl_nonnull'a
ll  e241e | ,# dKeQfuianle,  aMbQsula_ln,o nKnVualllu e_,N oMnVnaullule
,       | .                     ^.
.)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: In file included from note: s2/s2metrics.ccexpanded from macro 'ABSL_INTERNAL_X':
31:
In file included from   ../src/s2/s2metrics.h511: | 34 :
 In file included from  ../src/s2/s2coords.h : 105 :
 In file included from  ../src/s2/base/logging.h : 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_op.h_:A41T:
TIn file included from R/usr/local/clang/include/absl/log/internal/strip.hI:B26U:
TIn file included from E/usr/local/clang/include/absl/log/internal/log_message.h_:C47A:
PIn file included from T/usr/local/clang/include/absl/log/internal/structured_proto.hU:R27E:
DIn file included from _/usr/local/clang/include/absl/log/internal/proto.hB:Y34(:
th/usr/local/clang/include/absl/types/span.hi:s733):)31):   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
        733  |  c o n s t e x p r   S p a\n
<      T| >                                                   ^
/usr/local/clang/include/absl/container/internal/common.h:31:9:  Mnote: amacro 'ABSL_INTERNAL_IF_true' defined herek
eSp   a31n | (#Td*e faibnsel _AnBuSlLl_aIbNlTeE RpNtArL _AIBFS_Lt_rAuTeT(RiIfB_UsTaEt_iLsIfFiEeTdI,M E._.B.O)U NiDf,_
s      a| t                              ^i
sfie/usr/local/clang/include/absl/base/nullability.hd:
257      :| 23        ^:
 note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2hausdorff_distance_query.ccs:l20_:
nIn file included from u../src/s2/s2closest_edge_query.hl:l34a:
bIn file included from l../src/s2/s2closest_edge_query_base.he: 32_:
NIn file included from u/usr/local/clang/include/absl/container/btree_set.hl:l66a:
b/usr/local/clang/include/absl/container/internal/btree_container.hl:e542
:      3| :                      ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign/usr/local/clang/include/absl/container/internal/btree_container.h,: 648i:n7s:e rwarning: tIn file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_s2/s2metrics.cc
o:r31  _:
648aIn file included from  | s../src/s2/s2metrics.hs : i34 g:
 nIn file included from _ ../src/s2/s2coords.hi :mt105ph:
liIn file included from ,s../src/s2/base/logging.h) :)&21 &:
A,In file included from B /usr/local/clang/include/absl/log/check.hSc:Lo37n_:
sAIn file included from Tt/usr/local/clang/include/absl/log/internal/check_impl.hT :R&21,I:
B In file included from Uf/usr/local/clang/include/absl/log/internal/check_op.hTa:lE41_s:
LeIn file included from I,/usr/local/clang/include/absl/log/internal/strip.h
F:E      26T| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~IIn file included from M
/usr/local/clang/include/absl/log/internal/log_message.hE:_  47B543:
O | In file included from U /usr/local/clang/include/absl/log/internal/structured_proto.h N:D 27  :
{ In file included from 
 /usr/local/clang/include/absl/log/internal/proto.h       :|  34       ^~~~:
 
/usr/local/clang/include/absl/types/span.h : 739 : 21 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
rue)  ;739
 |       S| p                  ~~~~~a
n<T/usr/local/clang/include/absl/container/internal/btree_container.h>: 511M:a47k:e Snote: pexpanded from macro 'ABSL_INTERNAL_X'a
n(T  *511  | a b s l _ n u l l a bAlBeS Lb_eIgNiTnE RANBASLL__AATTTTRRIIBBUUTTEE__CLAIPFTEUTRIEMDE__BBYO(UtNhDi,s
)      )| )                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e  \a
b      s| l                                              ^~~~_
nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable /usr/local/clang/include/absl/container/internal/btree_container.he:n545d:)24 :n owarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]x
ce  p545t |   { 
        |                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
 f  a257l | s#ed)e;f
i      n| e                       ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l496_:n9u:l lnote: amacro 'ABSL_INTERNAL_X' defined hereb
le   _496N | u#ldleafbilnee
       A| B                      ^S
L_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNALIn file included from _s2/s2metrics.ccX:(31i:
nIn file included from s../src/s2/s2metrics.he:r34t:
_In file included from o../src/s2/s2coords.hr:_105a:
sIn file included from s../src/s2/base/logging.hi:g21n:
,In file included from  /usr/local/clang/include/absl/log/check.hi:n37s:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.ht:_21o:
rIn file included from _/usr/local/clang/include/absl/log/internal/check_op.ha:s41s:
iIn file included from g/usr/local/clang/include/absl/log/internal/strip.hn:_26i:
mIn file included from p/usr/local/clang/include/absl/log/internal/log_message.hl:,47 :
&In file included from &/usr/local/clang/include/absl/log/internal/structured_proto.h,: 27c:
oIn file included from n/usr/local/clang/include/absl/log/internal/proto.hs:t34 :
&,/usr/local/clang/include/absl/types/span.h :t794r:u8e:, 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  547 |     794  |          T *   a b s l _ n u ltlraubel)e; 
p      t| r                  ~~~~~ 
AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L511_:A47T:T Rnote: Iexpanded from macro 'ABSL_INTERNAL_X'B
UTE  _511L | I F E T I M E _ B O UANBDS,L _sIiNzTeE_RtN AsLi_zAeT)T RnIoBeUxTcEe_pCtA P{T
U      R| E       ^D
_BY/usr/local/clang/include/absl/base/nullability.h(:t257h:i23s:) )note: )expanded from macro 'absl_nullable' 
      257  |  # d e f      i n e   a b s l _\n
u      l| l                                              ^~~~a
ble _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 550/usr/local/clang/include/absl/log/internal/log_message.h::2447::
 In file included from warning: /usr/local/clang/include/absl/log/internal/structured_proto.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
27:
In file included from   /usr/local/clang/include/absl/log/internal/proto.h550: | 34 :
 /usr/local/clang/include/absl/types/span.h : 799 : 32 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       799  |  Sfpaalns<ec)o;n
s      t|                         ^T
> /usr/local/clang/include/absl/container/internal/btree_container.hM:a496k:e9C:o note: macro 'ABSL_INTERNAL_X' defined here
nst  S496p | a#nd(eTf*i naeb sAlB_SnLu_lIlNaTbElReN AbLe_gXi(nF
u      n| c                               ^,
 C/usr/local/clang/include/absl/base/nullability.ha:l257l:e23e:,  note: Kexpanded from macro 'absl_nullable'Q
ua  l257, |  #MdQeufailn,e  KaVbasllu_en,u lMlVaablluee ,_ N.u.l.l)a b l e 
       \| 
                      ^      
|         ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/container/internal/btree_container.h  :257549 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e ab  s549l | _ n uAlBlSaLb_lIeN T_ENRuNlAlLa_bXl(ei
n      s| e                      ^r
t_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSLIn file included from _s2/s2loop.ccI:N18T:
EIn file included from R../src/s2/s2loop.hN:A34L:
_In file included from I../src/s2/mutable_s2shape_index.hF:_33f:
aIn file included from l../src/s2/base/commandlineflags.hs:e21(:
iIn file included from f/usr/local/clang/include/absl/flags/flag.h_:s40a:
ti/usr/local/clang/include/absl/flags/commandlineflag.hs:f163i:e56d:,  warning: .type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].
.) __  V163A | _ A RbGoSo_l_ 
P      a| r        ^s
eFrom(absIn file included from ls2/s2hausdorff_distance_query.cc:::20s:
tIn file included from r../src/s2/s2closest_edge_query.hi:n34g:
_In file included from v../src/s2/s2closest_edge_query_base.hi:e32w:
 In file included from v/usr/local/clang/include/absl/container/btree_set.ha:l66u:
e/usr/local/clang/include/absl/container/internal/btree_container.h,: 551s:t3d:: :warning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
ring  *551  | a b sAlB_SnLo_nInNuTlElR NeArLr_oXr()i;n
s      e| r                                                       ^t
_or_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n ,note:  expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns_li_mnpoln,n u&l&l,  _&N&o,n nfuallls
e      ,|                       ^t
rue);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                  In file included from  s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h\:
34      :
| In file included from                                                    ^../src/s2/mutable_s2shape_index.h
:33/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/base/commandlineflags.h::921::
 In file included from /usr/local/clang/include/absl/flags/flag.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here40
:
/usr/local/clang/include/absl/flags/commandlineflag.h:   19331: | 27#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   A193B | S L _vIiNrTtEuRaNlA Lv_oIiFd_ tRreuaed((ivfo_isda*t iasbfsile_dn,o n.n.u.l)l  idfs_ts)a tciosnfsite d=
       0| ;        ^

      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2hausdorff_distance_query.cc | :#20d:
eIn file included from f../src/s2/s2closest_edge_query.hi:n34e:
 In file included from a../src/s2/s2closest_edge_query_base.hb:s32l:
_In file included from n/usr/local/clang/include/absl/container/btree_set.ho:n66n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l551 :_3N:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll
      |                      ^  
551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_In file included from Cs2/s2loop.ccA:P18T:
UIn file included from R../src/s2/s2loop.hE:D34_:
BIn file included from Y../src/s2/mutable_s2shape_index.h(:t33h:
iIn file included from s../src/s2/base/commandlineflags.h):)21,:
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 52 : 24 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       \52
 |       s| t                                                   ^d
::/usr/local/clang/include/absl/container/internal/common.ha:t31o:m9i: cnote: <macro 'ABSL_INTERNAL_IF_true' defined hereu
int   3312 | _#td>e*f ianbes lA_BnSoLn_nIuNlTlE RCNoAnLt_rIoFl_Wtorrude((
i      f| _                       ^s
ati/usr/local/clang/include/absl/base/nullability.hs:f241i:e22d:,  note: .expanded from macro 'absl_nonnull'.
.)   241i | f#_dseaftiinsef iaebds
l      _| n        ^o
nnull _Nonnull
In file included from       s2/s2hausdorff_distance_query.cc| :                     ^20
:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.hIn file included from :s2/s2loop.cc66::
18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 553../src/s2/s2loop.h::334::
 In file included from warning: ../src/s2/mutable_s2shape_index.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
33:
In file included from ../src/s2/base/commandlineflags.h:21:
  In file included from 553/usr/local/clang/include/absl/flags/flag.h | : 42 :
AIn file included from B/usr/local/clang/include/absl/flags/internal/flag.hS:L30_:
I/usr/local/clang/include/absl/base/call_once.hN:T53E:R22N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]X
(in   s53e | r t _ o ra_bassls:i:gonn,c ei_nfsleargt*_ oarb_sals_sniognnn_uilmlp lf,l a&g&),; 
&      &| ,                     ^ 
tr/usr/local/clang/include/absl/base/nullability.hu:e241,: 22t:r unote: eexpanded from macro 'absl_nonnull')
;
        241|  |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
def/usr/local/clang/include/absl/container/internal/btree_container.hi:n509e: 47a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n509u | l l   _ N o n n u l lA
B      S| L                     ^_
INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |        In file included from  s2/s2loop.cc : 18A:
BIn file included from S../src/s2/s2loop.hL:_34I:
NIn file included from T../src/s2/mutable_s2shape_index.hE:R33N:
AIn file included from L../src/s2/base/commandlineflags.h_:A21T:
TIn file included from R/usr/local/clang/include/absl/flags/flag.hI:B42U:
TIn file included from E/usr/local/clang/include/absl/flags/internal/flag.h_:C30A:
P/usr/local/clang/include/absl/base/call_once.hT:U96R:E33D:_ Bwarning: Ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
this   )96) | )    f r i e n d   s t d : : a t o m i c < u i n t\3
2      _| t                                                   ^>
* /usr/local/clang/include/absl/container/internal/common.ha:b31s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull    31b | a#sdee_fiinntee rAnBaSlL:_:ICNoTnEtRrNoAlLW_oIrFd_(t
r      u| e                                ^(
if/usr/local/clang/include/absl/base/nullability.h_:s241a:t22i:s fnote: iexpanded from macro 'absl_nonnull'e
d,   241. | .#.d)e fiifn_es aatbisslf_ineodn
n      u| l        ^l
 _Nonnull
      | In file included from                      ^s2/s2hausdorff_distance_query.cc
:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from In file included from s2/s2loop.cc/usr/local/clang/include/absl/container/btree_set.h::1866:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2loop.h::55334::
3In file included from :../src/s2/mutable_s2shape_index.h :warning: 33'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from ../src/s2/base/commandlineflags.h:21:
In file included from   /usr/local/clang/include/absl/flags/flag.h553: | 42 :
 In file included from A/usr/local/clang/include/absl/flags/internal/flag.hB:S30L:
_/usr/local/clang/include/absl/base/call_once.hI:N97T:E18R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
X(   i97n | s e r t _ o ro_nacses_ifglna,g *i nasbesrlt__noorn_nauslsli gfnl_aigm)p;l
,       | &                 ^&
, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22t:r unote: eexpanded from macro 'absl_nonnull',
 t  r241u | e#)d;e
f      i| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
 ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l511_:n47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N511o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2loop.cc555: | 18 :
 In file included from A../src/s2/s2loop.hB:S34L:
_In file included from I../src/s2/mutable_s2shape_index.hN:T33E:
RIn file included from N../src/s2/base/commandlineflags.hA:L21_:
XIn file included from (/usr/local/clang/include/absl/flags/flag.hi:n42s:
eIn file included from r/usr/local/clang/include/absl/flags/internal/flag.ht:_30o:
r/usr/local/clang/include/absl/base/call_once.h_:a153s:s41i:g nwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
inse  r153t | _ o r _ aCsaslilgOnn_cheiInmtp_li(msptld,: :caotnosmti c&<,u
i      n| t  ^3
2_/usr/local/clang/include/absl/container/internal/btree_container.ht:>511*: 52a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n511u | l l   c o n t r o l ,A
B      S| L                                        ^_
INT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Anote: Texpanded from macro 'absl_nonnull'T
RI  B241U | T#Ed_eCfAiPnTeU RaEbDs_lB_Yn(otnhniusl)l) )_ N o n n u l l 
        |                       ^ 
            \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNIn file included from As2/s2loop.ccL:_18I:
FIn file included from _../src/s2/s2loop.hf:a34l:
sIn file included from e../src/s2/mutable_s2shape_index.h(:i33f:
_In file included from s../src/s2/base/commandlineflags.ha:t21i:
sIn file included from f/usr/local/clang/include/absl/flags/flag.hi:e42d:
,In file included from  /usr/local/clang/include/absl/flags/internal/flag.h.:.30.:
)/usr/local/clang/include/absl/base/call_once.h :_194_:V31A:_ Awarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G
S__
        194|  |         ^i
nline std:In file included from :s2/s2hausdorff_distance_query.cca:t20o:
mIn file included from i../src/s2/s2closest_edge_query.hc:<34u:
iIn file included from n../src/s2/s2closest_edge_query_base.ht:3322:
_In file included from t/usr/local/clang/include/absl/container/btree_set.h>:*66 :
a/usr/local/clang/include/absl/container/internal/btree_container.hb:s558l:_3n:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll   C558o | n t rAoBlSWLo_rIdN(T
E      R| N                              ^A
L_X/usr/local/clang/include/absl/base/nullability.h(:i241n:s22e:r tnote: _expanded from macro 'absl_nonnull'o
r_  a241s | s#idgenf,i nien saebrstl__onro_nansuslilg n__Nhoinnntu_lilm
p      l| ,                     ^ 
const &,In file included from 
s2/s2loop.cc      :| 18  ^:

In file included from ../src/s2/s2loop.h/usr/local/clang/include/absl/container/internal/btree_container.h::34511:
:In file included from 52../src/s2/mutable_s2shape_index.h:: 33note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/base/commandlineflags.h:21:
  In file included from 511/usr/local/clang/include/absl/flags/flag.h | : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 195A:B16S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TE  R195N | A L _ A ToTnRcIeB_UfTlEa_gC*A PaTbUsRlE_Dn_oBnYn(utlhli sf)l)a)g )   { 
        |                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #\d
e      f| i                                                   ^n
e /usr/local/clang/include/absl/container/internal/common.ha:b31s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull    31_ | N#odnenfuilnle
       A| B                     ^S
L_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from In file included from s2/s2hausdorff_distance_query.ccs2/s2loop.cc::2018:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h../src/s2/s2loop.h::3434:
:
In file included from In file included from ../src/s2/s2closest_edge_query_base.h../src/s2/mutable_s2shape_index.h::3233:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h../src/s2/base/commandlineflags.h::6621:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/flags/flag.h558::423:
:In file included from  /usr/local/clang/include/absl/flags/internal/flag.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]30
:
/usr/local/clang/include/absl/base/call_once.h:200:40  :558  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _200I | NvToEiRdN ALLo_wXL(eivnesleCratl_loOrn_caes(saibgsnl,: :ionnsceer_tf_loarg_*a sasbisgln__nhoinnntu_lilm pfll,a gc,o nCsatl l&a,b
l      e| &  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~&
 f  n559, | 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241c | o#ndsetf i&n,e  faablssle_,n otnrnuuel,l
       _| N                  ~~~~~~~~~~~~~~~~~~~~~o
nnu  l560l | 
        |                       ^ 
              const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |  In file included from  s2/s2loop.cc : 18 :
 In file included from  ../src/s2/s2loop.h : 34 :
AIn file included from B../src/s2/mutable_s2shape_index.hS:L33_:
IIn file included from N../src/s2/base/commandlineflags.hT:E21R:
NA/usr/local/clang/include/absl/flags/flag.hL:_110A:T29T:R Iwarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
TE_CAP  T110U | RvEoDi_dB YS(etthFilsa)g)()a b s l : : F l a g < T > *   a b s l _ n o n n u\l
l       | f                                                   ^l
ag/usr/local/clang/include/absl/container/internal/common.h,: 31c:o9n:s tnote:  macro 'ABSL_INTERNAL_IF_true' defined hereT
& v   )31  | {#
d      e| f                            ^i
ne A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | I#Fd_etfriunee( iafb_ssla_tniosnfniueldl,  _.N.o.n)n uilfl_
s      a| t                     ^i
sfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |  In file included from  s2/s2loop.ccA:B18S:
LIn file included from _../src/s2/s2loop.hI:N34T:
EIn file included from R../src/s2/mutable_s2shape_index.hN:A33L:
_In file included from X../src/s2/base/commandlineflags.h(:i21n:
s/usr/local/clang/include/absl/flags/flag.he:r118t:_29o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sig  n118, |  vionisde rSte_toFrl_aags(saibgsnl_:h:iFnlta_gi<mTp>l*,  a&b&s,l _&n&o,n nfuallls ef,l
a      g| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
con  s589t |   V &   v )   { 
        |                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22t:r unote: eexpanded from macro 'absl_nonnull',
 c  o241n | s#td_eiftienrea taobrs(lh_innotn)n uAlBlS L__NIoNnTnEuRlNlA
L      _| C                     ^O
MMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, In file included from is2/s2measures.ccn:s18e:
rIn file included from t../src/s2/s2measures.h_:o24r:
_In file included from a../src/s2/s2point.hs:s25i:
gIn file included from n../src/s2/util/coding/coder.h_:h36i:
nIn file included from t../src/s2/base/casts.h_:i34m:
pIn file included from l/usr/local/clang/include/absl/log/log.h,: 209&:
&In file included from ,/usr/local/clang/include/absl/log/internal/log_impl.h :&20&:
,In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.ht:r63u:
e,/usr/local/clang/include/absl/log/internal/vlog_config.h
:      49| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~37
:   warning: 593type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
        49  |  i n t   R e g i s t e rtArnudeI,n ictoinaslti_ziet(eVrLaotgoSri(thei*n ta)b sAlB_SnLo_nInNuTlElR NvA)L;_
C      O| M                                    ^M
A);/usr/local/clang/include/absl/base/nullability.h
:      241| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~22
: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
509:  47241: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e509  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBUTE_CAPTURED_BY(this)),            In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.h : 24 :
 In file included from  ../src/s2/s2point.h :\25
:
      In file included from | ../src/s2/util/coding/coder.h                                              ^~~~:
36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:/usr/local/clang/include/absl/container/internal/btree_container.h209::
592In file included from :/usr/local/clang/include/absl/log/internal/log_impl.h3::20 :
In file included from warning: /usr/local/clang/include/absl/log/absl_vlog_is_on.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
63:
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/log/internal/vlog_config.h511::6352::43 :note:  expanded from macro 'ABSL_INTERNAL_X'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  511 |     63  |      e x p l i cAiBtS Lc_oInNsTtEeRxNpArL _VALToTgRSIiBtUeT(Ec_oCnAsPtT UcRhEaDr_*B Ya(btshli_sn)o)n)n u l l   f ) 
        |                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    \241
 |       #| d                                                   ^e
fi/usr/local/clang/include/absl/container/internal/common.hn:e31 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_true' defined heren
onn   u31l | l# d_eNfoinnneu lAlB
S      L| _                     ^I
NTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2measures.cc:  18592:
 | In file included from  ../src/s2/s2measures.h :A24B:
SIn file included from L../src/s2/s2point.h_:I25N:
TIn file included from E../src/s2/util/coding/coder.hR:N36A:
LIn file included from _../src/s2/base/casts.hX:(34i:
nIn file included from s/usr/local/clang/include/absl/log/log.he:r209t:
_In file included from o/usr/local/clang/include/absl/log/internal/log_impl.hr:_20a:
sIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:g63n:
,/usr/local/clang/include/absl/log/internal/vlog_config.h :i96n:s60e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_as   s96i | g n _fhriinetn_di mipnlt,  l&o&g,_ i&n&t,e rtnraule:,:
R      e| g  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
ste  r593A | n d I n i t i a l i z e ( V L o g S ittreu*e ,a bcsoln_snto_nintuelrla tvo)r;(
h      i| n                                                           ^t
) /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#CdOeMfMiAn)e; 
a      b| s                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:  _note: Nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l511l | 
        |                       ^ 
      ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* /usr/local/clang/include/absl/container/internal/btree_container.ha:b618s:l3_:n owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull   618c | o n sAtB SfLi_lIeN_T;E
R      N| A              ^L
_X(/usr/local/clang/include/absl/base/nullability.ht:r241y:_22e:m pnote: lexpanded from macro 'absl_nonnull'a
ce  ,241  | t#rdye_feimnpel aacbes_li_mnpoln,n ucloln s_tN o&n,n uflall
s      e| )                     ^;

      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_sIn file included from as2/s2measures.cct:i18s:
fIn file included from i../src/s2/s2measures.he:d24
:
      In file included from | ../src/s2/s2point.h        ^:
25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20In file included from :
s2/s2hausdorff_distance_query.ccIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h20::
63In file included from :
../src/s2/s2closest_edge_query.h:34/usr/local/clang/include/absl/log/internal/vlog_config.h:
:In file included from 133../src/s2/s2closest_edge_query_base.h::3732::
 In file included from warning: /usr/local/clang/include/absl/container/btree_set.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3  :133  | warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
t Reg  i624s | t e rAABnSdLI_nIiNtTiEaRlNiAzLe_(XV(LtorgyS_ietmep*l aacbes,l _tnroyn_neumlpll avc)e;_
h      i| n                                    ^t
_imp/usr/local/clang/include/absl/base/nullability.hl:,241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
&,   241t | r#udee,f
i      n| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
abs  l625_ | n o n n u l l   _ N o n n u l l 
        | c                     ^o
nst_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSLIn file included from _s2/s2measures.ccI:N18T:
EIn file included from R../src/s2/s2measures.hN:A24L:
_In file included from A../src/s2/s2point.hT:T25R:
IIn file included from B../src/s2/util/coding/coder.hU:T36E:
_In file included from C../src/s2/base/casts.hA:P34T:
UIn file included from R/usr/local/clang/include/absl/log/log.hE:D209_:
BIn file included from Y/usr/local/clang/include/absl/log/internal/log_impl.h(:t20h:
iIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.h):)63,:
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 157 : 11 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      157  |  V L o g S i t e *   a\b
s      l| _                                              ^~~~n
ullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                      ^626
:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2hausdorff_distance_query.cc:20:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2loop.ccb:s18l:
_In file included from n../src/s2/s2loop.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 41_:
NIn file included from o../src/s2/s2cell_id.hn:n43u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline coIn file included from ns2/s2max_distance_targets.ccs:t16 :
sIn file included from t../src/s2/s2max_distance_targets.ha:t27u:
sIn file included from _../src/s2/s1angle.hi:n28t:
eIn file included from r../src/s2/s2point.hn:a27l:
:In file included from :../src/s2/s2coder.hS:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:R67e:
pIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23o:
nIn file included from n/usr/local/clang/include/absl/crc/crc32c.hu:l32l:
 /usr/local/clang/include/absl/strings/str_format.hS:t164a:t8u:s :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
epT  o164P | o i nitnetr*( 
a      b| s                                         ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  Unote: nexpanded from macro 'absl_nonnull'u
se  d241( | )# d{e frienteu ranb spl__;n o}n
n      u| l       ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2loop.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2loop.h::6734:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/mutable_s2shape_index.h::2941:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2cell_id.h::8243:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h../src/s2/s2point.h::3227:
:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :../src/s2/s2coder.h165::238:
:/usr/local/clang/include/absl/status/status.h :warning: 1038type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
33:   warning: 165type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  i n1038t | *   a b sslt_antounsn_uilnlt epr_n;a
l      :| :       ^S
ta/usr/local/clang/include/absl/base/nullability.ht:u241s:R22e:p *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  raebps)l _{n
o      n| n                                ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absIn file included from ls2/s2max_distance_targets.cc_:n16u:
lIn file included from l../src/s2/s2max_distance_targets.ha:b27l:
eIn file included from  ../src/s2/s1angle.hp:t28r:
 In file included from A../src/s2/s2point.hB:S27L:
_In file included from A../src/s2/s2coder.hT:T23R:
IIn file included from B/usr/local/clang/include/absl/status/status.hU:T67E:
_In file included from L/usr/local/clang/include/absl/status/internal/status_internal.hI:F29E:
TIn file included from I/usr/local/clang/include/absl/strings/cord.hM:EIn file included from 82_s2/s2loop.ccB:
:OIn file included from 18U/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
N:In file included from D23../src/s2/s2loop.h,:
:
In file included from 34      /usr/local/clang/include/absl/crc/crc32c.h:
| :In file included from                               ^32../src/s2/mutable_s2shape_index.h
:
:41/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/base/nullability.h:
::In file included from 380257../src/s2/s2cell_id.h:::432343:::
  In file included from warning: note: ../src/s2/s1angle.hexpanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

28  :
257In file included from  |   ../src/s2/s2point.h#380:d | 27es:
ftIn file included from id../src/s2/s2coder.hn::e:23 s:
tar/usr/local/clang/include/absl/status/status.hbi:sn1063gl:_&13n :Sut lrwarning: lAtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ap
bple en1063 d | _cFNouonrlmslata tbcl(hesa
rt      d*:|  :                      ^as
tbrsiln_gn*o nanbuslll_ nSotnantuulslM edsssta,g
e      A| s                                          ^C
Str/usr/local/clang/include/absl/base/nullability.h(In file included from :
s2/s2measures.cc241      ::| 18            ^22:

:In file included from  ../src/s2/s2measures.h/usr/local/clang/include/absl/base/nullability.h:note: :24expanded from macro 'absl_nonnull'241:

:In file included from 22  ../src/s2/s2point.h:241:  | 25note: #:
expanded from macro 'absl_nonnull'dIn file included from e
../src/s2/util/coding/coder.hf:  i36n241e:
  | aIn file included from #b../src/s2/base/casts.hd:es34fl:
i_In file included from nn/usr/local/clang/include/absl/log/log.hoe:n n209au:
lbIn file included from ls/usr/local/clang/include/absl/log/internal/log_impl.hl _:_n22No:
onIn file included from nnn/usr/local/clang/include/absl/log/internal/log_message.huu:lll47l
:
       In file included from _| /usr/local/clang/include/absl/log/internal/structured_proto.h                     ^N:
o27n:
nIn file included from u/usr/local/clang/include/absl/log/internal/proto.hl:l34
:
      | /usr/local/clang/include/absl/types/span.h                     ^:
739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from In file included from /usr/local/clang/include/absl/log/log.hs2/s2max_distance_targets.cc::20916:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s2max_distance_targets.h::2227:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s1angle.h::4728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h../src/s2/s2point.h::2727:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/proto.h../src/s2/s2coder.h::3423:
:
/usr/local/clang/include/absl/types/span.hIn file included from :/usr/local/clang/include/absl/status/status.h740::6721:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:  82740:
 | In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 440 : 24 :   warning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l440_ | niunltl aFbPlrei netnFd()s tndo:e:xFcIeLpEt*  {a
b      s| l                    ^_
no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  onote: uexpanded from macro 'absl_nullable't
pu  t257, |  #cdoenfsitn eF oarbmsalt_Snpuelcl<aAbrlges ._.N.u>l&l afbolrem
a      t| ,                      ^

      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2measures.cc | :#18d:
eIn file included from f../src/s2/s2measures.hi:n24e:
 In file included from a../src/s2/s2point.h:b25s:
lIn file included from _../src/s2/util/coding/coder.hn:o36n:
nIn file included from u../src/s2/base/casts.hl:l34 :
_In file included from N/usr/local/clang/include/absl/log/log.ho:n209n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl:
22      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/log_message.h
:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23In file included from :s2/s2max_distance_targets.cc :note: 16expanded from macro 'absl_nullable':

In file included from ../src/s2/s2max_distance_targets.h:  27257:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29_:
NIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l82a:
bIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:
23      :
| In file included from                       ^/usr/local/clang/include/absl/crc/crc32c.h
:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull In file included from rs2/s2measures.cca:w18):
 In file included from  ../src/s2/s2measures.h/:/24 :
NIn file included from O../src/s2/s2point.hL:I25N:
TIn file included from 
../src/s2/util/coding/coder.h      :| 36                   ^:

In file included from ../src/s2/base/casts.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :/usr/local/clang/include/absl/log/log.h22::209 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
  In file included from 241/usr/local/clang/include/absl/log/internal/log_message.h | :#47d:
eIn file included from f/usr/local/clang/include/absl/log/internal/structured_proto.hi:n27e:
 In file included from a/usr/local/clang/include/absl/log/internal/proto.hb:s34l:
_/usr/local/clang/include/absl/types/span.hn:o799n:n32u:l lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
Non  n799u | lSlp
a      n| <                     ^c
onst T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
380 warnings generated.
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2loop.cc:18:
In file included from ../src/s2/s2loop.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2point_compression.cc -o s2/s2point_compression.o
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   stIn file included from as2/s2lax_polyline_shape.cct:i18c:
 In file included from b../src/s2/s2lax_polyline_shape.ho:o28l:
 In file included from C../src/s2/encoded_s2point_vector.ha:s29t:
AIn file included from n../src/s2/s2coder.hd:C23a:
lIn file included from l/usr/local/clang/include/absl/status/status.hM:e67t:
hIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hd:(29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t86 :
Co/usr/local/clang/include/absl/strings/cord_analysis.hn:d32i:t47i:o nwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl   _32n | osninzuel_lt  cG)e;t
E      s| t                                                 ^i
ma/usr/local/clang/include/absl/base/nullability.ht:e241d:M22e:m onote: rexpanded from macro 'absl_nonnull'y
Us  a241g | e#(dceofnisnte  CaobrsdlR_enpo*n naublsll __nNoonnnnuullll 
r      e| p                     ^)
;
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2max_distance_targets.cc241: | 16#:
dIn file included from e../src/s2/s2max_distance_targets.hf:i27n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| In file included from                      ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   staticIn file included from  s2/s2lax_polyline_shape.ccb:o18o:
lIn file included from  ../src/s2/s2lax_polyline_shape.hC:a28l:
lIn file included from B../src/s2/encoded_s2point_vector.hy:R29e:
fIn file included from (../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h :T67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n86n:
u/usr/local/clang/include/absl/strings/cord_analysis.hl:l50 :s49e:l fwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{
      |                                     ^50
 | s/usr/local/clang/include/absl/base/nullability.hi:z241e:_22t:  Gnote: eexpanded from macro 'absl_nonnull't
Mo  r241e | P#rdeecfiisneeM eambosrly_Unsoangneu(lclo n_sNto nCnourldlR
e      p| *                     ^ 
absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2max_distance_targets.cce:f16i:
nIn file included from e../src/s2/s2max_distance_targets.h :a27b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2lax_polyline_shape.cc  :97518 | :
 In file included from  ../src/s2/s2lax_polyline_shape.hi:n28l:
iIn file included from n../src/s2/encoded_s2point_vector.he: 29v:
oIn file included from i../src/s2/s2coder.hd: 23R:
eIn file included from a/usr/local/clang/include/absl/status/status.hd:C67a:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hb:a29c:
kIn file included from (/usr/local/clang/include/absl/strings/cord.hT:*86 :
a/usr/local/clang/include/absl/strings/cord_analysis.hb:s56l:_56n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll c   a56l | lsbiazcek_)t  cGoentsEts t{i
m      a| t                              ^e
dF/usr/local/clang/include/absl/base/nullability.ha:i241r:S22h:a rnote: eexpanded from macro 'absl_nonnull'M
em  o241r | y#Udseafgien(ec oanbsstl _CnoorndnRuelpl*  _aNbosnln_unloln
n      u| l                     ^l
 rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2max_distance_targets.cc241: | 16#:
dIn file included from e../src/s2/s2max_distance_targets.hf:i27n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| In file included from                      ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(consIn file included from ts2/s2max_distance_targets.cc :c16h:
aIn file included from r../src/s2/s2max_distance_targets.h*: 27a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.hf:i23l:
eIn file included from ,/usr/local/clang/include/absl/status/status.h :i67n:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hl:i29n:
e,/usr/local/clang/include/absl/strings/cord.h
:      109| :                         ^53
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 109expanded from macro 'absl_nonnull' | 
vo  i241d |  #CdoepfyiCnoer daTbosSlt_rnionngn(ucloln s_tN oCnonrudl&l 
s      r| c                     ^,
 std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2max_distance_targets.cc::2116:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2max_distance_targets.h::4127:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h../src/s2/s1angle.h::2628:
:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :../src/s2/s2point.h78::2726:
:In file included from  ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67   :
78In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29L:
o/usr/local/clang/include/absl/strings/cord.hg:M110e:s55s:a gwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
cons  t110  | cvhoaird*  Aapbpseln_dnCoonrnduTlolS tfriilneg,( cionnts tl iCnoer,d
&       | s                         ^r
c,/usr/local/clang/include/absl/base/nullability.h :s241t:d22::: snote: texpanded from macro 'absl_nonnull'r
in  g241* |  #adbesfli_nneo nanbuslll_ ndosntn)u;l
l       | _                                                      ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _NonnuIn file included from ls2/s2metrics.ccl:
31      :
| In file included from                      ^../src/s2/s2metrics.h
:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2metrics.cc501: | 31 :
 In file included from  ../src/s2/s2metrics.h :e34x:
pIn file included from l../src/s2/s2coords.hi:c105i:
tIn file included from  ../src/s2/base/logging.hC:h21u:
nIn file included from k/usr/local/clang/include/absl/log/check.hI:t37e:
rIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.ht:o21r:
(In file included from c/usr/local/clang/include/absl/log/internal/check_op.ho:r41d:
_In file included from i/usr/local/clang/include/absl/log/internal/strip.hn:t26e:
r/usr/local/clang/include/absl/log/internal/log_message.hn:a119l::41::C owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
Rep*   119a | b s lL_ongoMnensuslalg et&r eTeo)S;i
n      k| A                                                   ^l
so/usr/local/clang/include/absl/base/nullability.h(:a241b:s22l:: :note: Lexpanded from macro 'absl_nonnull'o
gS  i241n | k#*d eafbisnle_ naobnsnlu_lnlo nsniunlkl) ;_
N      o| n                                        ^n
ull/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2max_distance_targets.ccl:l16 :
_In file included from N../src/s2/s2max_distance_targets.ho:n27n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2metrics.cc
:31:
In file included from   ../src/s2/s2metrics.h504: | 34 :
 In file included from  ../src/s2/s2coords.h :e105x:
pIn file included from l../src/s2/base/logging.hi:c21i:
tIn file included from  /usr/local/clang/include/absl/log/check.hC:h37u:
nIn file included from k/usr/local/clang/include/absl/log/internal/check_impl.hI:t21e:
rIn file included from a/usr/local/clang/include/absl/log/internal/check_op.ht:o41r:
(In file included from c/usr/local/clang/include/absl/log/internal/strip.ho:n26s:
t/usr/local/clang/include/absl/log/internal/log_message.h :C121o:r41d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n121o | n n uLlolg Mceosrsda)g;e
&       | T                                       ^o
Si/usr/local/clang/include/absl/base/nullability.hn:k241O:n22l:y (note: aexpanded from macro 'absl_nonnull'b
sl  :241: | L#odgeSfiinnke*  aabbssll__nnoonnnnuullll  _sNionnkn)u;l
l      
|                                               ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2max_distance_targets.ccn:o16n:
nIn file included from u../src/s2/s2max_distance_targets.hl:l27 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& oIn file included from ps2/s2max_distance_targets.cce:r16a:
tIn file included from o../src/s2/s2max_distance_targets.hr:<27<:
(In file included from v../src/s2/s1angle.ho:i28d:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hv:)29 :
{/usr/local/clang/include/absl/strings/cord.h
:      525| :                               ^35
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257
:23: note:   expanded from macro 'absl_nullable'525
 |     257  |  #adbesfli:n:ec oarbds_li_nntuelrlnaabll:e: C_oNrudlRleapb*l ea
b      s| l                      ^_
nullable current_leafIn file included from _s2/s2metrics.cc :=31 :
nIn file included from u../src/s2/s2metrics.hl:l34p:
tIn file included from r../src/s2/s2coords.h;:
105      :
| In file included from                                   ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h257::3723:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:  41257:
 | In file included from #/usr/local/clang/include/absl/log/internal/strip.hd:e26f:
i/usr/local/clang/include/absl/log/internal/log_message.hn:e161 :a38b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  a161b | l e  L_oNguMlelsasbalgee
&       | o                      ^p
erator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2metrics.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h31::
29In file included from :
../src/s2/s2metrics.h:/usr/local/clang/include/absl/strings/cord.h34::
582In file included from :../src/s2/s2coords.h37::105 :
In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/log/check.h:  37582:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
eIn file included from x/usr/local/clang/include/absl/log/internal/check_op.hp:l41i:
cIn file included from i/usr/local/clang/include/absl/log/internal/strip.ht: 26C:
h/usr/local/clang/include/absl/log/internal/log_message.hu:n179k:R35a:n gwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
con  s179t |   C oLrodg*M easbssalg_en&o nonpuelrla tcoorr<d<)( w:c hcaorr_dt_*( caobrsdl)_ n{u}l
l      a| b                                    ^l
e v/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                                  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel 
_      N| u                     ^l
lable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2metrics.cc
:31:
In file included from   ../src/s2/s2metrics.h588: | 34 :
 In file included from  ../src/s2/s2coords.h :c105o:
nIn file included from s../src/s2/base/logging.ht: 21C:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.ho:r21d:
*In file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b41s:
lIn file included from _/usr/local/clang/include/absl/log/internal/strip.hn:o26n:
n/usr/local/clang/include/absl/log/internal/log_message.hu:l190l: 42c:o rd_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend constIn file included from  s2/s2metrics.ccC:o31r:
dIn file included from z../src/s2/s2metrics.hI:n34f:
oIn file included from *../src/s2/s2coords.h :a105b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hG:e21t:
CIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hr:d41z:
IIn file included from n/usr/local/clang/include/absl/log/internal/strip.hf:o26F:
o/usr/local/clang/include/absl/log/internal/log_message.hr:T191e:s43t:i nwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](

      |                           ^
  191 | /usr/local/clang/include/absl/base/nullability.h : 257L:o23g:M enote: sexpanded from macro 'absl_nullable's
ag  e257& |  #odpeefrianteo ra<b<s(ls_tndu:l:liaobsl_eb a_sNeu&l l(a*balbes
l      _| n                      ^o
nnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from ../src/s2/s2coder.hs2/s2metrics.cc::2331:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2metrics.h::6734:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2coords.h::29105:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/base/logging.h968::2131:
:In file included from  /usr/local/clang/include/absl/log/check.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
968In file included from  | /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from v/usr/local/clang/include/absl/log/internal/strip.ho:i26d:
 E/usr/local/clang/include/absl/log/internal/log_message.hm:p306l:a3c:e Twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
e(Cor  d306R | e p *a basbls_ln_onnonnunlull ls trde:p:,u nMieqtuheo_dpItdre<nLtoigfMieesrs amgeetDhaotda)>; 
d      a| t                              ^a
_;/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2measures.cc_:N18o:
nIn file included from n../src/s2/s2measures.hu:l24l:

In file included from       ../src/s2/s2point.h| :                     ^25
:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2max_distance_targets.cc
:16  :
241In file included from  | ../src/s2/s2max_distance_targets.h#:d27e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h
:      1078| :                     ^33
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* abslIn file included from _s2/s2measures.ccn:o18n:
nIn file included from u../src/s2/s2measures.hl:l24 :
TIn file included from a../src/s2/s2point.hk:e25R:
eIn file included from p../src/s2/util/coding/coder.h(:)36 :
cIn file included from o../src/s2/base/casts.hn:s34t:
&In file included from ;/usr/local/clang/include/absl/log/log.h
:      209| :
                                ^In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:22/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/log_message.h::2253::
 /usr/local/clang/include/absl/types/source_location.hnote: :expanded from macro 'absl_nonnull'133
:25  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n133e |  a b sclo_nnsotnenxuplrl  c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull file_naIn file included from ms2/s2max_distance_targets.cce:(16):
 In file included from c../src/s2/s2max_distance_targets.ho:n27s:
tIn file included from  ../src/s2/s1angle.hn:o28e:
xIn file included from c../src/s2/s2point.he:p27t:
 In file included from {../src/s2/s2coder.h
:      23| :
                        ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'1079
:33:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi n1079e |   a basbls_ln:o:ncnourldl_ i_nNtoenrnnualll:
:      C| o                     ^r
dRep* absl_nonnuIn file included from ls2/s2measures.ccl: 18T:
aIn file included from k../src/s2/s2measures.he:R24e:
pIn file included from (../src/s2/s2point.h): 25&:
&In file included from ;../src/s2/util/coding/coder.h
:      36| :
                                ^In file included from 
../src/s2/base/casts.h:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/log.h::22209::
 In file included from /usr/local/clang/include/absl/log/internal/log_impl.hnote: :expanded from macro 'absl_nonnull'22
:
In file included from   /usr/local/clang/include/absl/log/internal/log_message.h241: | 53#:
d/usr/local/clang/include/absl/types/source_location.he:f142i:n25e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o142n | n u lclo n_sNtoenxnpurl lc
o      n| s                     ^t
 char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18In file included from :
s2/s2max_distance_targets.ccIn file included from :../src/s2/s2measures.h16::
24In file included from :
../src/s2/s2max_distance_targets.hIn file included from :../src/s2/s2point.h27::
25In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/util/coding/coder.h28::
36In file included from :
../src/s2/s2point.hIn file included from :../src/s2/base/casts.h27::
34In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/log/log.h23::
209In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h67::
22In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/log/internal/log_message.h29::
53:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/types/source_location.h::1116150::3740::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1116150 |  |     c o n s t   c r c _ i n t e r n a l : : C r c C o rcdoSntsatt ec*h aarb*s la_bnsull_lnaobnlneu lMla yfbielGee_tnCarmceC)o
r      d| S                                       ^t
at/usr/local/clang/include/absl/base/nullability.he:(241): 22c:o nnote: sexpanded from macro 'absl_nonnull't
;
        241|  |                                     ^#
de/usr/local/clang/include/absl/base/nullability.hf:i257n:e23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf i_nNeo nanbuslll_
n      u| l                     ^l
able _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:In file included from 25s2/s2max_distance_targets.cc:
:In file included from 16../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/s2max_distance_targets.h:
:In file included from 27../src/s2/base/casts.h:
:In file included from 34../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/log.h:
:In file included from 209../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 22../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 53/usr/local/clang/include/absl/status/status.h:
:/usr/local/clang/include/absl/types/source_location.h67::
165In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h15::29 :
warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1120:30:   165warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 co n1120s | t   cvhoaird*  CaobpsylT_onAornrnauylIlm pfli(lceh_anra*m ea_b s=l _"n"o;n
n      u| l              ^l
 d/usr/local/clang/include/absl/base/nullability.hs:t241): 22c:o nnote: sexpanded from macro 'absl_nonnull't
;
        241|  |                              ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2metrics.cco:n31n:
uIn file included from l../src/s2/s2metrics.hl: 34_:
NIn file included from o../src/s2/s2coords.hn:n105u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41:In file included from  s2/s2metrics.cc:warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2metrics.h:34:
  In file included from 119../src/s2/s2coords.h | : 105 :
LIn file included from o../src/s2/base/logging.hg:M21e:
sIn file included from s/usr/local/clang/include/absl/log/check.ha:g37e:
&In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hT:o21S:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hk:A41l:
sIn file included from o/usr/local/clang/include/absl/log/internal/strip.h(:a26b:
s/usr/local/clang/include/absl/log/internal/log_message.hl::321::L52o:g Swarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
k* a  b321s | li_nnloinnneu lLlo gsMiensks)a;g
e      &|                                          ^L
ogM/usr/local/clang/include/absl/base/nullability.he:s241s:a22g:e :note: :expanded from macro 'absl_nonnull'o
pe  r241a | t#odre<f<i(nwec haabrs_lt_*n oanbnsull_ln u_lNloanbnluel lv
)       | {                     ^

      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abIn file included from ss2/s2measures.ccl:_18n:
uIn file included from l../src/s2/s2measures.hl:a24b:
lIn file included from e../src/s2/s2point.h :_25N:
uIn file included from l../src/s2/util/coding/coder.hl:a36b:
lIn file included from e../src/s2/base/casts.h
:      34| :
                      ^In file included from 
/usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFIn file included from ls2/s2measures.ccu:s18h:
(In file included from S../src/s2/s2measures.ht:r24i:
nIn file included from g../src/s2/s2point.hi:f25y:
SIn file included from i../src/s2/util/coding/coder.hn:k36*:
 In file included from a../src/s2/base/casts.hb:s34l:
_In file included from n/usr/local/clang/include/absl/log/log.ho:n209n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl: 22s:
i/usr/local/clang/include/absl/log/internal/log_message.hn:k158,:
32      :|                                               ^warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:  22158: |   note:  expanded from macro 'absl_nonnull'L
og  M241e | s#sdaegfei&n eo paebrsalt_onro<n<n(uvloli d_*N oanbnsull_ln
u      l| l                     ^a
ble  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2metrics.ccu:l31l:

In file included from       ../src/s2/s2metrics.h| :                     ^34
:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |    In file included from  s2/s2measures.ccv:o18i:
dIn file included from *../src/s2/s2measures.h :a24b:
sIn file included from l../src/s2/s2point.h_:n25u:
lIn file included from l../src/s2/util/coding/coder.ha:b36l:
eIn file included from  ../src/s2/base/casts.hc:o34n:
sIn file included from t/usr/local/clang/include/absl/log/log.h&: 209v:
)In file included from ;/usr/local/clang/include/absl/log/internal/log_impl.h
:      22| :
          ^
/usr/local/clang/include/absl/log/internal/log_message.h:191:/usr/local/clang/include/absl/base/nullability.h43::257 :23warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
  191   | 257  |  #LdoegfMienses aagbes&l _onpuelrlaatbolre< <_(Nsutldl:a:biloes
_      b| a                      ^s
e& (*absl_nonnull m)(std::iosIn file included from _s2/s2metrics.ccb:a31s:
eIn file included from &../src/s2/s2metrics.h :o34s:
)In file included from )../src/s2/s2coords.h;:
105      :
| In file included from                                           ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h241::3722:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:  41241:
 | In file included from #/usr/local/clang/include/absl/log/internal/strip.hd:e26f:
i/usr/local/clang/include/absl/log/internal/log_message.hn:e400 :a17b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u400l | l   _ N ocnonnusltl 
v      o| i                     ^d
* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_uIn file included from ns2/s2metrics.cck:n31o:
wIn file included from n../src/s2/s2metrics.h):,34
:
      In file included from | ../src/s2/s2coords.h             ^:
105:
In file included from ../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/check.h::2337::
 In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from expanded from macro 'absl_nullable':s2/s2measures.cc
21::
18  In file included from :
257/usr/local/clang/include/absl/log/internal/check_op.hIn file included from  | :#../src/s2/s2measures.h41d::
e24In file included from f:
/usr/local/clang/include/absl/log/internal/strip.hiIn file included from :n../src/s2/s2point.he26 ::
a25b/usr/local/clang/include/absl/log/internal/log_message.h:
s:In file included from l425_../src/s2/util/coding/coder.h:n:31u36l::
l In file included from awarning: ../src/s2/base/casts.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b:
l34e:
   _In file included from N425/usr/local/clang/include/absl/log/log.hu | l: l209 a:
LbIn file included from ol/usr/local/clang/include/absl/log/internal/log_impl.hge:M
22e      :
s| /usr/local/clang/include/absl/log/internal/log_message.h                      ^s:a
306g:e3F:a twarning: In file included from atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ls2/s2lax_polyline_shape.cc
(:c18o  n:
306sIn file included from  | t ../src/s2/s2lax_polyline_shape.h  ca:hbasrl28*_ :
naobnsnIn file included from lu../src/s2/encoded_s2point_vector.h_ln:lo 29nsn:
tudIn file included from l:l:../src/s2/s2coder.h uf:niil23qeu:
,e _In file included from ipn/usr/local/clang/include/absl/status/status.httr: <lLiong67eM:
)eIn file included from  s/usr/local/clang/include/absl/status/internal/status_internal.hAsB:aSg29Le_:
DAIn file included from aTt/usr/local/clang/include/absl/strings/cord.hTa:R>I94 Bd:
UaTtIn file included from Ea_/usr/local/clang/include/absl/strings/internal/cordz_info.h_C;O:
L31      D:
| /usr/local/clang/include/absl/synchronization/mutex.h;  ^:

489      :/usr/local/clang/include/absl/base/nullability.h| 45:                              ^:241
 :warning: 22/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]::
 241:note: 22  expanded from macro 'absl_nonnull':489
  | note:   expanded from macro 'absl_nonnull' 241
  |    # 241 d |  ev#fodiiendf e(i *naeab sbalbs_slnlo__nnnnuolulnlnalu bl_llN eo_ ninnNvuaolrnilna
nu      tl)| (lv                     ^
o
i      d| *                     ^ 
absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2metrics.cc289::3134:
:In file included from  ../src/s2/s2metrics.hnote: :expanded from macro 'absl_nullability_unknown'34
:
In file included from ../src/s2/s2coords.h:  105289:
 | In file included from #../src/s2/base/logging.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hl:a41b:
iIn file included from l/usr/local/clang/include/absl/log/internal/strip.hi:t26y:
_/usr/local/clang/include/absl/log/internal/log_message.hu:n426k:n31o:w nwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nul  l426_ | u n sLpoegcMiefsiseadg
e      F| a                                 ^t
al(const char* abslIn file included from _s2/s2lax_polyline_shape.ccn:o18n:
nIn file included from u../src/s2/s2lax_polyline_shape.hl:l28 :
fIn file included from i../src/s2/encoded_s2point_vector.hl:e29,:
 In file included from i../src/s2/s2coder.hn:t23 :
lIn file included from i/usr/local/clang/include/absl/status/status.hn:e67,:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                              ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.h
:490  :24113 | :# dwarning: etype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]f
ine   490a | b s l _ n o nvnouildl*  _aNbosnln_unlull
l      a| b                     ^i
lity_unknIn file included from os2/s2metrics.ccw:n31 :
aIn file included from r../src/s2/s2metrics.hg:)34;:

In file included from       ../src/s2/s2coords.h| :            ^105
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21289:
:In file included from 34/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'absl_nullability_unknown'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
289In file included from  | /usr/local/clang/include/absl/log/internal/check_op.h#:d41e:
fIn file included from i/usr/local/clang/include/absl/log/internal/strip.hn:e26 :
a/usr/local/clang/include/absl/log/internal/log_message.hb:s427l:_31n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bil  i427t | y _ u n k n o w n   _ N u l l _ u n scpoencsitf icehda
r      *|                                   ^a
bsl_nonnull failure_In file included from ms2/s2lax_polyline_shape.ccs:g18):
 In file included from A../src/s2/s2lax_polyline_shape.hB:S28L:
_In file included from A../src/s2/encoded_s2point_vector.hT:T29R:
IIn file included from B../src/s2/s2coder.hU:T23E:
_In file included from C/usr/local/clang/include/absl/status/status.hO:L67D:
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                              ^:

In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.h
:499  :24135 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine   499a | b s lv_oniodn nEunlalb l_eNDoebugLog(const char* abnsnlu_lnlu
l      l| a                     ^b
le name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |  In file included from  s2/s2lax_polyline_shape.ccL:o18g:
MIn file included from e../src/s2/s2lax_polyline_shape.hs:s28a:
gIn file included from e../src/s2/encoded_s2point_vector.hD:e29b:
uIn file included from g../src/s2/s2coder.hF:a23t:
aIn file included from l/usr/local/clang/include/absl/status/status.h(:c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29c:
hIn file included from a/usr/local/clang/include/absl/strings/cord.hr:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n549n:u40l:l  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
le,  
549       | |                                     ^ 
st/usr/local/clang/include/absl/base/nullability.ha:t241i:c22 :v onote: iexpanded from macro 'absl_nonnull'd
 I  n241c | r#edmeefnitnSey nacbhsSle_mn(oMnuntuelxl*  _aNbosnln_unloln
n      u| l                     ^l
 mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2metrics.ccs2/s2lax_polyline_shape.cc::3118:
:
In file included from In file included from ../src/s2/s2metrics.h../src/s2/s2lax_polyline_shape.h::3428:
:
In file included from In file included from ../src/s2/s2coords.h../src/s2/encoded_s2point_vector.h::10529:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2coder.h::2123:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/status.h::3767:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/cord.h::4194:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2631:
:
/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/synchronization/mutex.h::446550::4364::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  446   | 550  |   L o g M e s s a g e Q u i e t l y D e b u g F a t a l ( c o n sbta sceh_airn*t earbnsall_:n:oPnenruTlhlr efaidlSyen,c
h      *|                                            ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   w241) | ;#
d      e| f                                                               ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2metrics.cc31::
31/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 551../src/s2/s2metrics.h::4034::
 In file included from warning: ../src/s2/s2coords.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
105:
In file included from ../src/s2/base/logging.h  :55121 | :
 In file included from  /usr/local/clang/include/absl/log/check.hs:t37a:
tIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hc: 21b:
oIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hl: 41D:
eIn file included from c/usr/local/clang/include/absl/log/internal/strip.hr:e26m:
e/usr/local/clang/include/absl/log/internal/log_message.hn:t454S:y38n:c hwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
m(M  u454t | e x *L oagbMsels_snaognenQuulile tmluy,F
a      t| a                                       ^l
(c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sfli_lneo,n
n      u| l                                     ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define In file included from as2/s2lax_polyline_shape.ccb:s18l:
_In file included from n../src/s2/s2lax_polyline_shape.ho:n28n:
uIn file included from l../src/s2/encoded_s2point_vector.hl: 29_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552In file included from  | s2/s2metrics.cc : 31 :
 In file included from  ../src/s2/s2metrics.h : 34 :
 In file included from  ../src/s2/s2coords.h : 105 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41b:
aIn file included from s/usr/local/clang/include/absl/log/internal/strip.he:_26i:
n/usr/local/clang/include/absl/log/internal/log_message.ht:e456r:n38a:l :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
erT  h456r | e a dLSoygnMcehs*s aagbesQlu_ineotnlnyuFlalt awl,(
c      o| n                                                               ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nfei laeb,s li_nnto nlniunlel, 
_      N| o                                     ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2lax_polyline_shape.cc_:N18o:
nIn file included from n../src/s2/s2lax_polyline_shape.hu:l28l:

In file included from       ../src/s2/encoded_s2point_vector.h| :                     ^29
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2metrics.cc::2931:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2metrics.h::9434:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2coords.h::31105:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/base/logging.h556::2138:
:In file included from  /usr/local/clang/include/absl/log/check.h:warning: 37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
  In file included from 556/usr/local/clang/include/absl/log/internal/check_op.h | : 41 :
vIn file included from o/usr/local/clang/include/absl/log/internal/strip.hi:d26 :
L/usr/local/clang/include/absl/log/internal/log_message.ho:c457k:S38l:o wwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
op(  S457y | n c h W a i t P a r a m s *   a b s l _ n o n n u lclo nwsati tcph,a ri*n ta bfslla_gnso)n;n
u      l| l                                     ^ 
fa/usr/local/clang/include/absl/base/nullability.hi:l241u:r22e:_ mnote: sexpanded from macro 'absl_nonnull'g
)
        241|  |                                      ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNIn file included from eos2/s2max_distance_targets.cc n:an16bus:
llIn file included from l_../src/s2/s2max_distance_targets.h
n:      o27| n:
                     ^nIn file included from 
u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:In file included from 
23s2/s2lax_polyline_shape.cc      :
:| In file included from 18                     ^/usr/local/clang/include/absl/status/status.h:

:In file included from 67../src/s2/s2lax_polyline_shape.h:
:In file included from 28/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/encoded_s2point_vector.h:
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2coder.h::114023::
49In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   1140  | b o o l   L o c k S l o w W i t h D e a d l i n e ( M u H o w  CaobrsdlR_enpoEnxntuelrln ahlo*w ,a
b      s| l                                  ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  rnote: eexpanded from macro 'absl_nonnull'p
);  
241       | | #                                                ^d
efine absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2lax_polyline_shape.cc
:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28  :
In file included from ../src/s2/encoded_s2point_vector.h:29241:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h_:N31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u559l:l46
:       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const ConditionIn file included from *s2/s2max_distance_targets.cc :a16b:
sIn file included from l../src/s2/s2max_distance_targets.h_:n27u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from  ../src/s2/s2point.hc:o27n:
dIn file included from ,../src/s2/s2coder.h
:      23| :
                      ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
In file included from  /usr/local/clang/include/absl/strings/cord.hs2/s2metrics.ccnote: ::expanded from macro 'absl_nonnull'114631
::
10  In file included from :241../src/s2/s2metrics.hIn file included from   | :s2/s2measures.ccwarning: #34d:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
e18
In file included from f:
../src/s2/s2coords.hiIn file included from  :n../src/s2/s2measures.h1146105e: | :
 24CIn file included from a:
o../src/s2/base/logging.hbIn file included from r:s../src/s2/s2point.hd21l:R:
_25eIn file included from n:
p/usr/local/clang/include/absl/log/check.hoIn file included from *:n../src/s2/util/coding/coder.h 37n:a:
u36bIn file included from l:
s/usr/local/clang/include/absl/log/internal/check_impl.hlIn file included from l: ../src/s2/base/casts.h_21_:n:
N/usr/local/clang/include/absl/log/internal/check_op.h34oon::
nnn180In file included from uul:/usr/local/clang/include/absl/log/log.hlll42: 
N:209      e w:
| warning: EIn file included from                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x/usr/local/clang/include/absl/log/internal/log_impl.h

t:e22r:
n  a/usr/local/clang/include/absl/log/internal/log_message.hl180:R | In file included from 319eAs2/s2lax_polyline_shape.cc:pB:20(S18:aL:
 b_In file included from warning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lA../src/s2/s2lax_polyline_shape.h
:T::T  R28s319I:
t | B U TIn file included from r E../src/s2/encoded_s2point_vector.hi _:ncP29goUnR:
_sEIn file included from vt_ ../src/s2/s2coder.hiFwU:ecN23whC:
 aTrIn file included from dI_O/usr/local/clang/include/absl/status/status.hatN:t*67 a :
c,aIn file included from o
b/usr/local/clang/include/absl/status/internal/status_internal.hn      s:s| l29t         ^_:
 
nIn file included from cuh/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.hlal::ra*94241b :
:laeIn file included from 22b s/usr/local/clang/include/absl/strings/internal/cordz_info.h:clo: _n31note: nexpanded from macro 'absl_nonnull's:
o
nt/usr/local/clang/include/absl/synchronization/mutex.hn  &:u241 562l | v:l#)58 d;:Me
 af      warning: ki| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]en                   ^
Ce
h   ea/usr/local/clang/include/absl/base/nullability.h562cb: | ks257 Fl: a_23vin:olo inote: Sndnexpanded from macro 'absl_nullable't u
rLil  onl257cg  | k(_#S
Ndl      oeo| nfw                                         ^ni(
unMlu/usr/local/clang/include/absl/base/nullability.helH
: o      w241a|                       ^:ba
b22ss:ll __note: nnoexpanded from macro 'absl_nonnull'nun
lu  ll241al | b# lhedo e_wf,N icunloenls taa bCblosnedl
_i      nt| o                      ^in
nounl*l  a_bNsoln_nnuullll
a      b| l                     ^e
 cond,
      |                                                          ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2metrics.cc::25731::
23In file included from :../src/s2/s2metrics.h :note: 34expanded from macro 'absl_nullable'In file included from :

s2/s2measures.ccIn file included from :../src/s2/s2coords.h  18:257:
105 | In file included from :
#../src/s2/s2measures.hdIn file included from e:../src/s2/base/logging.hf24i::
n21eIn file included from :
 ../src/s2/s2point.haIn file included from :b/usr/local/clang/include/absl/log/check.h25s::
l37In file included from _:
../src/s2/util/coding/coder.hnIn file included from :u/usr/local/clang/include/absl/log/internal/check_impl.hl36:l:
21aIn file included from :
b../src/s2/base/casts.h/usr/local/clang/include/absl/log/internal/check_op.hl::e34181 :
:_In file included from 25N/usr/local/clang/include/absl/log/log.h:u: lwarning: l209type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:
b
In file included from l/usr/local/clang/include/absl/log/internal/log_impl.he:  22
181:
       | | /usr/local/clang/include/absl/log/internal/log_message.h                       ^: 
321 : 52c:o nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
 abs  l321: | :iSntlaitnues *L oagbMsels_In file included from sns2/s2lax_polyline_shape.ccao:gnen18&u:
 lLIn file included from lo ../src/s2/s2lax_polyline_shape.hgsM:tea28st:
suIn file included from as../src/s2/encoded_s2point_vector.hg,e: :29c:oo:
npIn file included from se../src/s2/s2coder.htr :act23hoa:
rr<In file included from *</usr/local/clang/include/absl/status/status.h (aw:bcsh67la_:
rnIn file included from _ot/usr/local/clang/include/absl/status/internal/status_internal.hn*n :ual29bl:
s lIn file included from p_/usr/local/clang/include/absl/strings/cord.hrn:euf94li:
lxIn file included from a)b/usr/local/clang/include/absl/strings/internal/cordz_info.h;l:
e31       :
| v/usr/local/clang/include/absl/synchronization/mutex.h                        ^):
 565{/usr/local/clang/include/absl/base/nullability.h:
:36      241:| :                                                   ^ 22
:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.hnote: 
:expanded from macro 'absl_nonnull'257
:23    :565241  | note:   |  expanded from macro 'absl_nullable'#v
doe  if257id |  nU#ed nealfobicsknlSe_l naoowbn(snSluy_lnnlcu lh_WlIn file included from Naas2/s2max_distance_targets.ccoinb:tnlu16Pel:
a lIn file included from r_
N../src/s2/s2max_distance_targets.ha      u:m| l27s                     ^l:
*
aIn file included from b ../src/s2/s1angle.hal:be28sIn file included from 
:
ls2/s2metrics.cc      In file included from _:| ../src/s2/s2point.hn31                      ^:u:

27lIn file included from :
l../src/s2/s2metrics.hIn file included from a:../src/s2/s2coder.hb34:l:
23eIn file included from :
 ../src/s2/s2coords.hIn file included from w:/usr/local/clang/include/absl/status/status.ha105:i:
67tIn file included from :
p../src/s2/base/logging.hIn file included from ):/usr/local/clang/include/absl/status/internal/status_internal.h 21:A:
29BIn file included from :
S/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.hL::_371159A:
:TIn file included from 17T/usr/local/clang/include/absl/log/internal/check_impl.h:R: Iwarning: 21Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
U/usr/local/clang/include/absl/log/internal/check_op.h
T:E181 _:1159C58 | O:iLn Dlwarning: ;itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
n
      e|                                     ^  C
o181r/usr/local/clang/include/absl/base/nullability.h | d :R 257e p :c*23 o:nas btnote: s expanded from macro 'absl_nullable'al
_b  ns257ol | n:#n:dueSlfltia ntNeeu sw*aE bxatIn file included from sbes2/s2measures.cclsr:_ln18n_a:
unlIn file included from loR../src/s2/s2measures.hlne:anp24bu(:
ll
In file included from el      ../src/s2/s2point.h  | :_s                ^25Nt
:
uaIn file included from t/usr/local/clang/include/absl/base/nullability.hl../src/s2/util/coding/coder.hu:l:s241a36b,::
l 22In file included from ec:../src/s2/base/casts.h
o :      nnote: 34| sexpanded from macro 'absl_nonnull':
                      ^t
In file included from 
 /usr/local/clang/include/absl/log/log.h  c:h241209a | :
#rdIn file included from *e/usr/local/clang/include/absl/log/internal/log_impl.h f:ian22be:
s /usr/local/clang/include/absl/log/internal/log_message.hla:_b340ns:ol46n_:nn uowarning: lntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ln
 uplr  le 340f_ | i NIn file included from x )os2/s2lax_polyline_shape.ccnf;:nr
18ui      :
le| In file included from ln                                                         ^d../src/s2/s2lax_polyline_shape.h

 :      v28/usr/local/clang/include/absl/base/nullability.h| o:
:                     ^iIn file included from 241
d../src/s2/encoded_s2point_vector.h: :22A29:b:
 sIn file included from lnote: F../src/s2/s2coder.hexpanded from macro 'absl_nonnull'o:
r23m  a:
241tIn file included from  | F#/usr/local/clang/include/absl/status/status.hld:ues67fh:
i(nIn file included from Se/usr/local/clang/include/absl/status/internal/status_internal.ht r:aib29nsg:
liIn file included from _fn/usr/local/clang/include/absl/strings/cord.hyo:Sni94nnu:
kl*In file included from l  a/usr/local/clang/include/absl/strings/internal/cordz_info.h_bNs:oln_31nn:
uol/usr/local/clang/include/absl/synchronization/mutex.hnln:
u576      l:| l                     ^49 
s:i nwarning: ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                                              ^
  576 | /usr/local/clang/include/absl/base/nullability.h : 241v:o22i:d  note: Texpanded from macro 'absl_nonnull'In file included from r
ys2/s2metrics.ccR:  e31241m:
o | In file included from #v../src/s2/s2metrics.hde:e(34bf:
iaIn file included from ns../src/s2/s2coords.hee:_ 105ai:
bnIn file included from st../src/s2/base/logging.hle:_r21nn:
oaIn file included from nl/usr/local/clang/include/absl/log/check.hn::u:37lP:
leIn file included from  r/usr/local/clang/include/absl/log/internal/check_impl.h_T:Nh21or:
ne/usr/local/clang/include/absl/log/internal/check_op.hna:du189Sl:yln28
c:      h | *warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 

absl  _189n | oinnnluilnle  sc)o;n
s      t|                                                  ^a
bs/usr/local/clang/include/absl/base/nullability.hl::241::S22t:a tnote: uexpanded from macro 'absl_nonnull's
*   a241b | s#ld_enfoinnneu lalb sAls_Sntoantnuusl(lc o_nNsotn naublsll
:      :| S                     ^t
atus& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2lax_polyline_shape.cc
:18  :
241In file included from  | ../src/s2/s2lax_polyline_shape.h#:d28e:
fIn file included from i../src/s2/encoded_s2point_vector.hn:e29 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreaIn file included from ds2/s2metrics.ccS:y31n:
cIn file included from h../src/s2/s2metrics.h*: 34a:
bIn file included from s../src/s2/s2coords.hl:_105n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hs:)37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                            ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::193241::2122::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

In file included from     s2/s2max_distance_targets.cc241193: |  | 16c#:
odIn file included from ne../src/s2/s2max_distance_targets.hsf:ti 27na:
ebIn file included from  s../src/s2/s1angle.hal:b:28s::
SlIn file included from _t../src/s2/s2point.hna:ot27nu:
nsIn file included from *u ../src/s2/s2coder.hla:lb23 s:
_lIn file included from N_/usr/local/clang/include/absl/status/status.hon:no67nn:
unIn file included from lu/usr/local/clang/include/absl/status/internal/status_internal.hll:
l29       :
A| /usr/local/clang/include/absl/strings/cord.hs                     ^S:t
1183a:t47u:s (warning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nst  a1183b | s In file included from l s2/s2lax_polyline_shape.cc :: :18 S:
t aIn file included from  t../src/s2/s2lax_polyline_shape.h u: s28 O:
 rIn file included from  <../src/s2/encoded_s2point_vector.h T: >29 &:
  In file included from  s../src/s2/s2coder.h ):  23 {:
 
In file included from        /usr/local/clang/include/absl/status/status.h | :                     ^67 
:
 In file included from  /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h :: 24129 ::
 22In file included from  :/usr/local/clang/include/absl/strings/cord.h  : note: 94expanded from macro 'absl_nonnull' :
 
In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h  C:241o31r | :
d/usr/local/clang/include/absl/synchronization/mutex.h#R:ed580pe:*f34 i:an bewarning: s type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]la
b_sn  lu580l_ | nl ao nbbnlaeus lerl_e i_pn)Nt
eo      nrn| un                                              ^lal
l
:      /usr/local/clang/include/absl/base/nullability.h:| :                     ^P257
e:r23T:h rnote: eexpanded from macro 'absl_nullable'a
dSynch  *257  | a#bdself_innuel laabbslle_ nWualkleaubpl(e
       _| N                                 ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b257In file included from l:es2/s2metrics.cc23
::      31 | note: In file included from :
                      ^expanded from macro 'absl_nullable's2/s2measures.ccIn file included from 

:../src/s2/s2metrics.h18:  :
34257In file included from :
 | ../src/s2/s2measures.hIn file included from #:../src/s2/s2coords.hd24e::
f105In file included from i:
../src/s2/s2point.hnIn file included from e:../src/s2/base/logging.h 25:a:
21bIn file included from :
s../src/s2/util/coding/coder.hIn file included from l:/usr/local/clang/include/absl/log/check.h_36:n:
37uIn file included from :
l../src/s2/base/casts.hIn file included from l:a/usr/local/clang/include/absl/log/internal/check_impl.hb34:l:
21eIn file included from  :
/usr/local/clang/include/absl/log/log.h_/usr/local/clang/include/absl/log/internal/check_op.h:N:209u202l:
:lIn file included from 46a/usr/local/clang/include/absl/log/internal/log_impl.h:b: lwarning: e22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:

      /usr/local/clang/include/absl/log/internal/log_message.h| :                      ^  398
202: | 11 :  ewarning: In file included from xtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]ps2/s2lax_polyline_shape.cc
l:i18  c:
398iIn file included from  | t   C../src/s2/s2lax_polyline_shape.h h e:vcok28iOd:
p*M In file included from eas../src/s2/encoded_s2point_vector.hbs:sal29g_:
enBuuIn file included from lil../src/s2/s2coder.hla:dbe23lre:
( In file included from ccoo/usr/local/clang/include/absl/status/status.hnns:stt67 &c :
hva)In file included from r;/usr/local/clang/include/absl/status/internal/status_internal.h*
 :      a29| b          ^:
s
lIn file included from _/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.hn::o94257n:
:nIn file included from 23u/usr/local/clang/include/absl/strings/internal/cordz_info.h:l: l31note:  expanded from macro 'absl_nullable'e:

x/usr/local/clang/include/absl/synchronization/mutex.hp:  r581257t: | e#38xd:etf )i;warning: n
etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]       
| a                                             ^b
s  l581/usr/local/clang/include/absl/base/nullability.h_ | : n241u :l 22l :a   bnote: blexpanded from macro 'absl_nonnull'ea
s e  __241iN | un#ltdleeafrbilnnaeel
 :      :aP| eb                      ^rs
Tlh_rneoandnSuylnlc h_*N oanbnsulIn file included from l_s2/s2measures.ccln:
o18      n:
n| uIn file included from                      ^l../src/s2/s2measures.h
l: 24w:
)In file included from ;../src/s2/s2point.h
:      25| :
                                     ^In file included from 
../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/base/nullability.h36::
241In file included from :../src/s2/base/casts.h22::34 :
In file included from note: /usr/local/clang/include/absl/log/log.hexpanded from macro 'absl_nonnull':
209:
  In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h | :#22d:
e/usr/local/clang/include/absl/log/internal/log_message.hf:i400n:e17In file included from  :as2/s2metrics.ccb s:warning: l31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_:

nIn file included from o../src/s2/s2metrics.hn  n:400u34l | :
 lIn file included from   _../src/s2/s2coords.hN o:n n105cu:
olIn file included from ln../src/s2/base/logging.hs
:t      21 | :
                     ^vIn file included from o
/usr/local/clang/include/absl/log/check.hi:d37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:u209l:l15a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con  s209t | &   In file included from vcs2/s2lax_polyline_shape.cc)o;:n
s18      t:
|                  ^In file included from c
../src/s2/s2lax_polyline_shape.hh:/usr/local/clang/include/absl/base/nullability.ha28:r:
257*In file included from : ../src/s2/encoded_s2point_vector.h23a::b29 s:
note: lexpanded from macro 'absl_nullable'In file included from _
../src/s2/s2coder.hn:  o23257In file included from n:
 | s2/s2max_distance_targets.ccnIn file included from #:u/usr/local/clang/include/absl/status/status.hd16l:e:
l67fIn file included from  :
i../src/s2/s2max_distance_targets.hNIn file included from n:e/usr/local/clang/include/absl/status/internal/status_internal.he27w: :
S29aIn file included from t:
b../src/s2/s1angle.hrIn file included from s:i/usr/local/clang/include/absl/strings/cord.hl28n:_:
g94nIn file included from (:
u../src/s2/s2point.h)In file included from l:;/usr/local/clang/include/absl/strings/internal/cordz_info.hl27
:a:
      31bIn file included from | :
l../src/s2/s2coder.h              ^/usr/local/clang/include/absl/synchronization/mutex.he:
: 23585/usr/local/clang/include/absl/base/nullability.h_:
N::In file included from u20241/usr/local/clang/include/absl/status/status.hl:::l 22warning: 67a:btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 l
In file included from note: eexpanded from macro 'absl_nonnull'  /usr/local/clang/include/absl/status/internal/status_internal.h

585:         | 29 241| :
  | v                      ^/usr/local/clang/include/absl/strings/cord.h#o
:di1222de: f52Ti:rn aewarning: n stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a(
MbusHlo_wn o an1222bn | siulnl_llni on_neNno uvnlonliu dlh loC
wo      )r;| d                      ^: :
/I/n luisneedR efpo:r: SCwoanpd(VCaorr-d>:M:uItnelxi nterRaenps*f earb
s      l| _                   ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241:l22l:  rnote: hexpanded from macro 'absl_nonnull's
)   {241
 |       #| d                                                   ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   In file included from vs2/s2metrics.cco:i31d:
 In file included from F../src/s2/s2metrics.he:r34(:
bIn file included from a../src/s2/s2coords.hs:e105_:
iIn file included from n../src/s2/base/logging.ht:In file included from e21s2/s2measures.ccr:
:nIn file included from 18a/usr/local/clang/include/absl/log/check.h:
l:In file included from :37../src/s2/s2measures.h::
:PIn file included from 24e/usr/local/clang/include/absl/log/internal/check_impl.h:
r:TIn file included from 21h../src/s2/s2point.hr:
:e/usr/local/clang/include/absl/log/internal/check_op.h25a:d:
S226In file included from y:../src/s2/util/coding/coder.hn59:c:36h :
*warning: In file included from  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/base/casts.ha
:b34s:
  lIn file included from 226_/usr/local/clang/include/absl/log/log.h | n:vo209on:
niIn file included from ud/usr/local/clang/include/absl/log/internal/log_impl.h l:Ml22a
:
k      e/usr/local/clang/include/absl/log/internal/log_message.hC| :h                                          ^425e
:c31k/usr/local/clang/include/absl/base/nullability.h:O: p241warning: Vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:a
l22u:e   S425tnote:  | r expanded from macro 'absl_nonnull'i nL
go(  gsM241teds:s:aogsetFra | e#tadaemfl&( coiIn file included from osnns2/s2max_distance_targets.cc,s tc e: oc16anh:
bsaIn file included from rst../src/s2/s2max_distance_targets.h*l : _v27ano:
boiIn file included from snd../src/s2/s1angle.hln*:_u 28nla:
olbIn file included from n s../src/s2/s2point.hn_l:uN_27lon:
lnuIn file included from  nl../src/s2/s2coder.hful:ila23llb:
e
lIn file included from ,      e/usr/local/clang/include/absl/status/status.h |  :i                     ^p67n
):
;t
 In file included from       l/usr/local/clang/include/absl/status/internal/status_internal.h| i                                                          ^:n
e29In file included from ):
 /usr/local/clang/include/absl/base/nullability.hAs2/s2lax_polyline_shape.cc/usr/local/clang/include/absl/strings/cord.h:B::257S181230:L:
:23_In file included from 20:A../src/s2/s2lax_polyline_shape.h: T: note: Texpanded from macro 'absl_nullable'28warning: R
I:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B  In file included from 
U257../src/s2/encoded_s2point_vector.hT | E: #_dC291230eO:
L | fIn file included from Dii../src/s2/s2coder.h;nn:
le23      i :
| naIn file included from                               ^eb/usr/local/clang/include/absl/status/status.h
 sc:/usr/local/clang/include/absl/base/nullability.hlo67n:_:
s241nIn file included from t:u/usr/local/clang/include/absl/status/internal/status_internal.h 22l:lc:29ah :
note: bexpanded from macro 'absl_nonnull'aIn file included from rl
/usr/local/clang/include/absl/strings/cord.h*e:    94241a_:
 | bNIn file included from #su/usr/local/clang/include/absl/strings/internal/cordz_info.hdll:e_l31fna:
iub/usr/local/clang/include/absl/synchronization/mutex.hnll:ele590 a
:ab      40bl| :se                      ^ l 
warning: _Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]on
ornd  n:u590l: | lI  _nN olneinxunlplelR
ie      cp| i:                     ^t: d
Mauttae(x)( ccoonnsstt  v{o
l      a| t                   ^i
le /usr/local/clang/include/absl/base/nullability.hM:u257t:e23x:*  In file included from note: aexpanded from macro 'absl_nullable'bs2/s2measures.cc
s:  l18257_:
 | nIn file included from #ud../src/s2/s2measures.hlel:fa24ibn:
leIn file included from e  ../src/s2/s2point.ha/:b*s25il:
g_In file included from nn../src/s2/util/coding/coder.hour:le36lda:
*bIn file included from /l../src/s2/base/casts.h)e : {_34}N
:
u      lIn file included from | l/usr/local/clang/include/absl/log/log.h                                       ^a:
b209l/usr/local/clang/include/absl/base/nullability.he:
:
In file included from 257      /usr/local/clang/include/absl/log/internal/log_impl.h:| :23                      ^22:
:
 /usr/local/clang/include/absl/log/internal/log_message.hnote: :expanded from macro 'absl_nullable'426
:31  :257  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n426e | In file included from   s2/s2metrics.cc aLb:os31lg:
_MIn file included from en../src/s2/s2metrics.hsu:sl34la:
agIn file included from bel../src/s2/s2coords.hFe:a 105t_:
aNIn file included from ulIn file included from ../src/s2/base/logging.hl(s2/s2max_distance_targets.cc:lc:21ao16:
bn:
In file included from lsIn file included from /usr/local/clang/include/absl/log/check.het../src/s2/s2max_distance_targets.h:
 :37      c27:
| h:
In file included from                       ^aIn file included from /usr/local/clang/include/absl/log/internal/check_impl.h
r../src/s2/s1angle.h:*:21 28:
a:
/usr/local/clang/include/absl/log/internal/check_op.hbIn file included from :s../src/s2/s2point.h276l::_2713n:
:oIn file included from  n../src/s2/s2coder.hwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:u
l23l:
   In file included from 276f/usr/local/clang/include/absl/status/status.h | i:clo67en,:
s tIn file included from i n/usr/local/clang/include/absl/status/internal/status_internal.hvto ildi*:n ea,b29
s:
      l| _/usr/local/clang/include/absl/strings/cord.h                              ^n:
u1234l/usr/local/clang/include/absl/base/nullability.h:l:20a241:b:l 22ewarning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] o
note: pexpanded from macro 'absl_nonnull'e
ra   t1234241o |  | ir#<nd<le(ifnsietn dce: :aobsosntsltr _ecnhaaomnr&n*, ua
bls      ll| _ n            ^_o
nNn/usr/local/clang/include/absl/base/nullability.hou:lnl257n :Cuol23lr:
d :note:       :expanded from macro 'absl_nullable'| I
n                     ^  l
i257n | e#RdeepfIn file included from :is2/s2measures.cc:n:ea18 s:
a_In file included from bc../src/s2/s2measures.hhsa:rls24_(:
n)In file included from u ../src/s2/s2point.hcl:oln25as:
btIn file included from l ../src/s2/util/coding/coder.h{e
:       36_| :
N                   ^In file included from u
../src/s2/base/casts.hl:l34a/usr/local/clang/include/absl/base/nullability.h:
b:In file included from l241/usr/local/clang/include/absl/log/log.he::
22209      ::
|  In file included from                       ^note: /usr/local/clang/include/absl/log/internal/log_impl.h
expanded from macro 'absl_nonnull':
22:
  /usr/local/clang/include/absl/log/internal/log_message.h241: | 427#:dIn file included from 31es2/s2metrics.ccf::i 31nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 
In file included from a../src/s2/s2metrics.hb:  s34l427_:
 | nIn file included from  o../src/s2/s2coords.hn :n 105u l:
l In file included from   ../src/s2/base/logging.h_ N:o 21 n:
 nIn file included from  u l/usr/local/clang/include/absl/log/check.hl :
 37       :
 | In file included from                       ^/usr/local/clang/include/absl/log/internal/check_impl.h 
:c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t277 :c50h:a rwarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l277_ | n o n n u l l   f a i l u r e _ m s g )   A B S L _ A T T R I B U T E _ C OcLoDn;s
t       | v                              ^o
id/usr/local/clang/include/absl/base/nullability.h*: 241aIn file included from :bs2/s2max_distance_targets.cc22s::l16 _:
note: nexpanded from macro 'absl_nonnull'In file included from u
l../src/s2/s2max_distance_targets.hl  :a241b27 | l#:
edIn file included from  ev../src/s2/s1angle.hfail:nu28ee):
 ;In file included from a
b../src/s2/s2point.h      s:| l                                                 ^27_
n:
o/usr/local/clang/include/absl/base/nullability.hnIn file included from :n../src/s2/s2coder.h257u::l2323l:
: In file included from  _/usr/local/clang/include/absl/status/status.hnote: Nexpanded from macro 'absl_nullable':o
n67n  u:
257lIn file included from  | l#
/usr/local/clang/include/absl/status/internal/status_internal.hd      e:| f29                     ^i:

n/usr/local/clang/include/absl/strings/cord.he: 1239a:b38s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab l1239e |  i_nNluilnlea balbes
l      :| :                      ^c
ord_internal::CordReIn file included from ps2/s2metrics.cc*: 31a:
bIn file included from s../src/s2/s2metrics.hl:_In file included from 34ns2/s2measures.cco:
:nIn file included from 18n../src/s2/s2coords.hu:
:lIn file included from 105l../src/s2/s2measures.h :
:CIn file included from o24r../src/s2/base/logging.hd:
::In file included from :21../src/s2/s2point.hI:
:nIn file included from 25l/usr/local/clang/include/absl/log/check.hi:
:nIn file included from 37e../src/s2/util/coding/coder.hR:
:eIn file included from 36p/usr/local/clang/include/absl/log/internal/check_impl.h:
:::In file included from 21a../src/s2/base/casts.hs:
:_/usr/local/clang/include/absl/log/internal/check_op.h34t::
r278In file included from e:/usr/local/clang/include/absl/log/log.he13(::)209
 :
      warning: In file included from | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from                                      ^
:s2/s2lax_polyline_shape.cc
22  ::
278/usr/local/clang/include/absl/base/nullability.h18/usr/local/clang/include/absl/log/internal/log_message.h | ::
:c241In file included from 436o:../src/s2/s2lax_polyline_shape.h:n22:36s:28:t :
  note: In file included from expanded from macro 'absl_nonnull'warning: v../src/s2/encoded_s2point_vector.h
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:
  i29241d  *:
 | 436 In file included from # | a ../src/s2/s2coder.hdb s:eLlo23f_g:
MinIn file included from enu/usr/local/clang/include/absl/status/status.hsel:s l67aaa:
gbbIn file included from esl/usr/local/clang/include/absl/status/internal/status_internal.hDle:e_ 29bno:
uopIn file included from gne/usr/local/clang/include/absl/strings/cord.hFnr:aua94tlt:
aloIn file included from l r/usr/local/clang/include/absl/strings/internal/cordz_info.h(_<:cN<31oo(:
nns/usr/local/clang/include/absl/synchronization/mutex.hsnt:tud624 l::cl:68h
o:a      s r| twarning: *                     ^r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
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tt      )e| ;                                   ^x

L      In file included from o| /usr/local/clang/include/absl/base/nullability.hs2/s2max_distance_targets.ccc            ^::k
24116(::
/usr/local/clang/include/absl/base/nullability.hM22In file included from :u:../src/s2/s2max_distance_targets.h257t ::enote: 2723xexpanded from macro 'absl_nonnull':
:&
In file included from   ../src/s2/s1angle.h  note: m:u241expanded from macro 'absl_nullable'28  | 
:
A#In file included from   Bd../src/s2/s2point.h257Se: | Lf27#_i:
dInIn file included from eNe../src/s2/s2coder.hfT :iEa23nRb:
eNsIn file included from  Al/usr/local/clang/include/absl/status/status.haL_:b_n67sAo:
lTnIn file included from _Tn/usr/local/clang/include/absl/status/internal/status_internal.hnRu:uIl29lBl:
lU /usr/local/clang/include/absl/strings/cord.haT_:bEN1245l_o:eCn38 An:_Pu NTlwarning: uUltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lR

lE      aD|  b_                     ^1245lB
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b      s| l                                                                   ^~~~:
:cord_internal::CordRep* absl_nullable In file included from Cs2/s2measures.cco:r18d:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from ::../src/s2/s2measures.h635I::n2429l:
:iIn file included from  n../src/s2/s2point.hwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:R
e25p:
:  In file included from :635t../src/s2/util/coding/coder.h | r :e e36e(:
)xIn file included from In file included from 
ps2/s2metrics.cc../src/s2/base/casts.h      l:i:| 31c34                                     ^:
i:

In file included from tIn file included from ../src/s2/s2metrics.h/usr/local/clang/include/absl/base/nullability.h /usr/local/clang/include/absl/log/log.h::M:34257u209:
:t:
In file included from 23eIn file included from ../src/s2/s2coords.h:x/usr/local/clang/include/absl/log/internal/log_impl.h: L:105note: oexpanded from macro 'absl_nullable'22:
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  In file included from (257M/usr/local/clang/include/absl/log/internal/log_message.h../src/s2/base/logging.h | u#t::dee44621xf*::
i n43In file included from ae:/usr/local/clang/include/absl/log/check.hb  :sal37warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_:
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nIn file included from lo/usr/local/clang/include/absl/log/internal/check_impl.h  _nn:446nu21 | u l:
l/usr/local/clang/include/absl/log/internal/check_op.hl l: La292mob:ugl13)Me: e  AsB_warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]SNLa_
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Tor  an241in | ut#In file included from lsd>s2/s2max_distance_targets.ccle&f: ,i16_
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N      eIn file included from o|  ../src/s2/s2max_distance_targets.hn            ^a:n
b27/usr/local/clang/include/absl/base/nullability.husl:
:llIn file included from 
241_../src/s2/s1angle.h      :n:| 22o28n                     ^::
n
 In file included from unote: lexpanded from macro 'absl_nonnull'../src/s2/s2point.hl
 :_  N27241o:
 | n#In file included from ndu../src/s2/s2coder.hel:fli23
n:
      eIn file included from |  /usr/local/clang/include/absl/status/status.h                     ^a:
b67In file included from s:
s2/s2lax_polyline_shape.cclIn file included from :_/usr/local/clang/include/absl/status/internal/status_internal.h18n::
o29In file included from n:
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l:In file included from  36../src/s2/encoded_s2point_vector.h_::N 29owarning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nIn file included from 
n../src/s2/s2coder.hu:l 23l1258:

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nIn file included from In file included from e/usr/local/clang/include/absl/status/internal/status_internal.h s2/s2measures.cc:c:29o18:
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In file included from In file included from dIn file included from /usr/local/clang/include/absl/strings/cord.hs2/s2metrics.cc_../src/s2/s2measures.h::i:9431n24:
:
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In file included from In file included from eIn file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2metrics.hr../src/s2/s2point.h::n:3134a25:
:
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:/usr/local/clang/include/absl/synchronization/mutex.h:In file included from In file included from :C../src/s2/s2coords.h../src/s2/util/coding/coder.h641o:::r105d3668:
R:
:In file included from eIn file included from  ../src/s2/base/logging.hp../src/s2/base/casts.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]F:21
l34a:
t:
*In file included from   In file included from  /usr/local/clang/include/absl/log/check.h641/usr/local/clang/include/absl/log/log.ha: | :b37 209s:
 :
lIn file included from eIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hx/usr/local/clang/include/absl/log/internal/log_impl.hn:p:o21l22n:
i:
n/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/log/internal/check_op.hcu::ilt454293l 
::M      u3849| t                                   ^::e
x  L/usr/local/clang/include/absl/base/nullability.hwarning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:

c241k:  (22M  454:u293 |   t | note:  e expanded from macro 'absl_nonnull'Lx 
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*u       lal| b                                                                   ^~~~ sf
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);/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n/usr/local/clang/include/absl/synchronization/mutex.h | e# :da649ebf:sil29n_:en  owarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nbn
sull_ln   o_nN649no | u nl nlue lx_lpN
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Lock(Mutex* absl_nonnuIn file included from lIn file included from s2/s2metrics.ccls2/s2measures.cc: :31m18u:
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,In file included from  In file included from c../src/s2/s2metrics.h../src/s2/s2measures.ho::n3424s:
:
tIn file included from In file included from  ../src/s2/s2coords.h../src/s2/s2point.hC::o10525In file included from n:
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s2/s2max_distance_targets.ccdIn file included from In file included from :i../src/s2/base/logging.h../src/s2/util/coding/coder.h16t:::
i2136In file included from o:
:
../src/s2/s2max_distance_targets.hnIn file included from In file included from :&/usr/local/clang/include/absl/log/check.h../src/s2/base/casts.h27 :::
c3734In file included from o:
:
../src/s2/s1angle.hnIn file included from In file included from :d/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/log.h28):::
21
209In file included from :
      /usr/local/clang/include/absl/log/internal/check_op.h:
../src/s2/s2point.h| :In file included from :                            ^295/usr/local/clang/include/absl/log/internal/log_impl.h27
:::
2022/usr/local/clang/include/absl/base/nullability.hIn file included from ::
:../src/s2/s2coder.h 241/usr/local/clang/include/absl/log/internal/log_message.h:warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:2322
456:
::In file included from  38  /usr/local/clang/include/absl/status/status.h:note: 295: expanded from macro 'absl_nonnull'warning:  | 67
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:

oIn file included from   n/usr/local/clang/include/absl/status/internal/status_internal.h241  s:t | 45629 # | :
sd /usr/local/clang/include/absl/strings/cord.hie :gfL1268nio:eng51deM:  warning:  ecstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ahsaar
bgs*le  _Q1268anu | boiisnenlntl_ulinlynolFen a n_tvuNaololiln(d nc ouoCplnoelsrr
tda       :t| c:o                     ^hIr
an<r<l*i( nsatebRdesp:l:::_bEamnsopinclna_uoclesTlrt erfeeia(lmCeo<,c rhdiaRnret,p  *l Tiarnbasei,lt_
sn      >o| &                                     ^n,n

u      l/usr/local/clang/include/absl/base/nullability.hl|  :r                   ^e241p
:,22
/usr/local/clang/include/absl/base/nullability.h:      : | 241note:                                                   ^:expanded from macro 'absl_nonnull'
22
:/usr/local/clang/include/absl/base/nullability.h   :note: 241expanded from macro 'absl_nonnull'241 | 
#:  d22241e: | f# idnote: nexpanded from macro 'absl_nonnull'eef
 ianbe  s l241a_b | n#soldn_enfnuiolnneln  u_alNlbos ln__nnNounolnnlun
ul      ll| l                     ^ 
_
N      o| n                     ^n
ulIn file included from ls2/s2measures.cc
:      18| :
                     ^In file included from 
../src/s2/s2measures.h:24:
In file included from In file included from s2/s2metrics.cc../src/s2/s2point.h::3125:
:
In file included from In file included from ../src/s2/s2metrics.h../src/s2/util/coding/coder.h::3436:
:
In file included from In file included from ../src/s2/s2coords.h../src/s2/base/casts.h::10534:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/log.h::21209:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/log_impl.h::3722:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/log/internal/check_impl.h:In file included from :457s2/s2lax_polyline_shape.cc21:::
3818/usr/local/clang/include/absl/log/internal/check_op.h::
: In file included from 296warning: ../src/s2/s2lax_polyline_shape.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:63
28::
 In file included from warning:   ../src/s2/encoded_s2point_vector.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]457:
 | 29 :
    In file included from 296 ../src/s2/s2coder.h |  :  23  :
     In file included from   /usr/local/clang/include/absl/status/status.h    :  67   :
  In file included from    /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from    :s2/s2max_distance_targets.cc   29:   :
16   In file included from :
  /usr/local/clang/include/absl/strings/cord.hIn file included from   c :../src/s2/s2max_distance_targets.ho 94 :n:
 27sIn file included from  :
t/usr/local/clang/include/absl/strings/internal/cordz_info.h In file included from  : ../src/s2/s1angle.hc31 :h:
 28a/usr/local/clang/include/absl/synchronization/mutex.h :
r: In file included from *670 ../src/s2/s2point.h : :a74 27b: :
s  warning:  In file included from l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] ../src/s2/s2coder.h_
 :n 23o n   :
nc670In file included from uoln | /usr/local/clang/include/absl/status/status.h ls:  tf67e asi:
xilIn file included from pgu/usr/local/clang/include/absl/status/internal/status_internal.hlnr:ieed29c_ m:
icsh/usr/local/clang/include/absl/strings/cord.htga: )r
1275R*       :e| a51a                                     ^b:d
s le/usr/local/clang/include/absl/base/nullability.hwarning: _r:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nM241
ou:nt22 ne:1275ux  | note: ilLexpanded from macro 'absl_nonnull'nlo
l)c  i;k241n
( | e      M# | udv                                                              ^teo
ef/usr/local/clang/include/absl/base/nullability.hixdi:n& 241e  C:mao22ubr: sd Anote: l:B:expanded from macro 'absl_nonnull'_SI
nL  no_241lnI | inN#nuTdelEeRlRfe Nip_An:NLe:o_ EnAamnTbpuTsllRlalI
_cBe      nUT| o                     ^nTrE
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tl      h_| in                     ^so
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u      l| l                                                                         ^~~~ 
rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2metrics.cc
:31  :
241In file included from  | ../src/s2/s2metrics.h#:d34e:
fIn file included from i../src/s2/s2coords.hn:e105/usr/local/clang/include/absl/synchronization/mutex.h :
:aIn file included from 678b../src/s2/base/logging.h:s:35l21:_:
 nwarning: In file included from otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n/usr/local/clang/include/absl/log/check.h
n:u37l  l:
678 In file included from  | _ N/usr/local/clang/include/absl/log/internal/check_impl.h oen:xnp21ul:
l/usr/local/clang/include/absl/log/internal/check_op.hli
:c      i298| t:                     ^ 22
R:e awarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rMut  e298x | Lcoocnks(tM uutnesxi*g naebds lc_hnaorn*n ualbls lm_un)o nAnBuSlLl_ SoHpAeRrEIn file included from aDs2/s2max_distance_targets.cc_t:Lo16Or:
C<In file included from K<../src/s2/s2max_distance_targets.h_(:sF27Ut:
NdIn file included from C:../src/s2/s1angle.hT::bI28Oa:
sNiIn file included from (c../src/s2/s2point.hm_:uo27)s:

tIn file included from r      e../src/s2/s2coder.h| a:                                  ^m23
<:
cIn file included from h/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.ha::r67241,:
: In file included from 22T/usr/local/clang/include/absl/status/internal/status_internal.h:r: a29note: i:
expanded from macro 'absl_nonnull't
s/usr/local/clang/include/absl/strings/cord.h>  :&2411282, | :#
47d      :e|                       ^fwarning: 
itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
/usr/local/clang/include/absl/base/nullability.he: 241 a:1282b22 | si:ln _lnote: nioexpanded from macro 'absl_nonnull'nne
n uv  lol241i  | d#_ NdCooenrnfdu:il:ln
Ie      n | la                     ^ib
nselR_enpo:n:nSueltlT r_eNeo(nCnourldlIn file included from R
s2/s2lax_polyline_shape.cce      :p| 18*                     ^:
 
In file included from a../src/s2/s2lax_polyline_shape.hb:s28l:
_In file included from n../src/s2/encoded_s2point_vector.ho:n29n:
uIn file included from l../src/s2/s2coder.hl: 23rIn file included from :
es2/s2metrics.ccIn file included from p:/usr/local/clang/include/absl/status/status.h,31:
:
67      In file included from :
| ../src/s2/s2metrics.hIn file included from                                               ^:/usr/local/clang/include/absl/status/internal/status_internal.h
34::
29/usr/local/clang/include/absl/base/nullability.hIn file included from :
:../src/s2/s2coords.hIn file included from 241:/usr/local/clang/include/absl/strings/cord.h:105:22:
94:In file included from :
 ../src/s2/base/logging.hIn file included from note: :/usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull'21:
:
31In file included from   :
/usr/local/clang/include/absl/log/check.h241/usr/local/clang/include/absl/synchronization/mutex.h: | :37#681d:
:eIn file included from 74f/usr/local/clang/include/absl/log/internal/check_impl.h:i: n21warning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 
a/usr/local/clang/include/absl/log/internal/check_op.hb:s299  l:681_67 | n o n:en xupwarning: llltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i 
c_iNto   nRneu299ald | le 
 r        M |  u                      ^ t 
 e x L o c k ( M u t e x &   m u   A B S L _ I N T E R N A L _ A T T R IcBoUnTsEt_ CuAnPsTiUgRnEeDd_ BcYh(atrh*i sa)b,s
l      _| n                                                                         ^~~~o
nIn file included from ns2/s2max_distance_targets.ccu:l16l:
)In file included from ;../src/s2/s2max_distance_targets.h
:      27| :
                                                                  ^In file included from 
../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.h:
:23689  :
:241In file included from 35 | /usr/local/clang/include/absl/status/status.h:#: d67warning: e:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]fIn file included from 
i/usr/local/clang/include/absl/status/internal/status_internal.hn:  e29689 :
a | b/usr/local/clang/include/absl/strings/cord.hs : l1290e_:xn54po:ln inwarning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]ui
tl lR  e1290a_ | diNenorlMniunntuele xlvLo
oi      cd| k (                     ^CMo
urtde:x:*I nalbisnle_Rneopn:n:uSlelt Tmrue,e OcroEnmsptt yC(oCnodridtRieopn*&  acbosnld_)n
u      l| l                                  ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241r:e22p:, 
note:       expanded from macro 'absl_nonnull'| 
                                                     ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 323s2/s2max_distance_targets.cc | : 16 :
fIn file included from r../src/s2/s2max_distance_targets.hi:e27n:
dIn file included from  ../src/s2/s1angle.hv:o28i:
dIn file included from  ../src/s2/s2point.hA:b27s:
lIn file included from F../src/s2/s2coder.ho:r23m:
aIn file included from t/usr/local/clang/include/absl/status/status.hF:l67u:
sIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.h(:S29t:
r/usr/local/clang/include/absl/strings/cord.hi:n1301g:i56f:y Swarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
k* a b1301s | li_nnloinnneu lvlo isdi nCko,r
d      :| :                                             ^I
nl/usr/local/clang/include/absl/base/nullability.hi:n241e:R22e:p :note: :expanded from macro 'absl_nonnull'C
In file included from o  s2/s2lax_polyline_shape.ccm241:m | 18#idt:
TerfIn file included from ie../src/s2/s2lax_polyline_shape.hen:(e28c :
oaIn file included from nb../src/s2/encoded_s2point_vector.hsslt_: n29Co:
onIn file included from rn../src/s2/s2coder.hudlRle :p_23N*:
 oIn file included from an/usr/local/clang/include/absl/status/status.hbn:su67ll:
_lIn file included from n
/usr/local/clang/include/absl/status/internal/status_internal.hu      :l| 29l                     ^:
a
In file included from b/usr/local/clang/include/absl/strings/cord.hl:e94 :
oIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hd:_31r:
e/usr/local/clang/include/absl/synchronization/mutex.hp:,710
:      74| :                                                       ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/base/nullability.h
:257:23: note:   expanded from macro 'absl_nullable'710
 |     257e | x#pdleifciinte  Warbistle_rnMuultleaxbLloec k_(NMuultleaxb&l em
u       | A                      ^B
SL_INTERNAL_In file included from As2/s2max_distance_targets.ccT:T16R:
IIn file included from B../src/s2/s2max_distance_targets.hU:T27E:
_In file included from C../src/s2/s1angle.hA:P28T:
UIn file included from R../src/s2/s2point.hE:D27_:
BIn file included from Y../src/s2/s2coder.h(:t23h:
iIn file included from s/usr/local/clang/include/absl/status/status.h):)67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                                                                         ^~~~:
29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                     /usr/local/clang/include/absl/synchronization/mutex.h : 718 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      718  |      e x p lCiocridtR eWpr*i taebrsMlu_tneoxnLnouclkl( Mruetpe,x
*       | a                                                 ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
mu  )241
 |       #| d                                  ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2max_distance_targets.cc31::
16:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2max_distance_targets.h722::2774:
:In file included from  ../src/s2/s1angle.h:warning: 28:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2point.h  :72227 | :
 In file included from  ../src/s2/s2coder.he:x23p:
lIn file included from i/usr/local/clang/include/absl/status/status.hc:i67t:
 In file included from W/usr/local/clang/include/absl/status/internal/status_internal.hr:i29t:
e/usr/local/clang/include/absl/strings/cord.hr:M1312u:t38e:x Lwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
k(Mu t1312e | xi&n lmiun eA BaSbLs_lI:N:TcEoRrNdA_Li_nAtTeTrRnIaBlU:T:EC_oCrAdPRTeUpR*E Da_bBsYl(_tnhuilsl)a,b
l      e|                                                                           ^~~~C
ord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23/usr/local/clang/include/absl/synchronization/mutex.h:: 731:note: 35expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #de  f731i | n e  eaxbpslli_cniutl lWarbiltee r_MNuutlelxaLbolcek
(      M| u                      ^t
ex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:In file included from 21s2/s2max_distance_targets.cc:
:16/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 428../src/s2/s2max_distance_targets.h::4427::
 In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h:27  :
428In file included from  | ../src/s2/s2coder.hA:B23S:
LIn file included from _/usr/local/clang/include/absl/status/status.hA:T67T:
RIn file included from I/usr/local/clang/include/absl/status/internal/status_internal.hB:U29T:
E/usr/local/clang/include/absl/strings/cord.h_:R1321E:T48U:R Nwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
NONNU L1321L |  icnolnisnte  cvhoaird*  Caobrsdl:_:nIonnlniunlelR eMpa:k:eCCohpeckOypTSotArrirnagy((
c      h| a                                           ^r
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | d#sdte)f icnoen satb s{l
_      n| o                                               ^nIn file included from 
ns2/s2lax_polyline_shape.ccu/usr/local/clang/include/absl/base/nullability.h:l:18l241:
 :In file included from _22../src/s2/s2lax_polyline_shape.hN::o 28n:
note: nIn file included from expanded from macro 'absl_nonnull'u../src/s2/encoded_s2point_vector.h
l:l  29
241:
       | In file included from #| ../src/s2/s2coder.hd                     ^:e
23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hlIn file included from :_s2/s2metrics.cc29n::
o31In file included from n:
/usr/local/clang/include/absl/strings/cord.hnIn file included from :u../src/s2/s2metrics.h94l::
l34In file included from  :
/usr/local/clang/include/absl/strings/internal/cordz_info.h_In file included from :N../src/s2/s2coords.h31o::
n105/usr/local/clang/include/absl/synchronization/mutex.hn:
:uIn file included from 801l../src/s2/base/logging.h:l:20
21:      :
 | In file included from warning:                      ^/usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
801/usr/local/clang/include/absl/log/internal/check_op.h | : 429 :C31o:n dwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ion(  b429o | o l   ( *Ta1b svl1_,n oTn2n uvl2l,  fcuonncs)t( vcohiadr**  aabbssll__nnuolnlnaublill ietxyp_rutnekxnto)w nA)B,S
L      _| A                   ^T
TRI/usr/local/clang/include/absl/base/nullability.hB:U241T:E22_:N Onote: Iexpanded from macro 'absl_nonnull'N
LI  N241E | ;#
d      e| f                              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnulIn file included from ls2/s2lax_polyline_shape.cc :_18N:
oIn file included from n../src/s2/s2lax_polyline_shape.hn:u28l:
lIn file included from 
../src/s2/encoded_s2point_vector.h      :| 29                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   ConIn file included from ds2/s2metrics.cci:t31i:
oIn file included from n../src/s2/s2metrics.h(:b34o:
oIn file included from l../src/s2/s2coords.h :(105*:
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :f21u:
n/usr/local/clang/include/absl/log/internal/check_op.hc:)432(:v13o:i dwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l432_ | ncuolnlsatb iclhiatry*_ uanbksnlo_wnno)n,n
u      l| l                                            ^ 
Ma/usr/local/clang/include/absl/base/nullability.hk:e289C:h34e:c knote: Oexpanded from macro 'absl_nullability_unknown'p
Str  i289n | g#(dTe1f ivn1e,  aTb2s lv_2n,u
l      l| a            ^b
il/usr/local/clang/include/absl/base/nullability.hi:t241y:_22u:n knote: nexpanded from macro 'absl_nonnull'o
wn   241_ | N#udlelf_iunnes paebcsilf_ineodn
n      u| l                                 ^l
 _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:In file included from 28s2/s2metrics.cc:
:In file included from 31../src/s2/encoded_s2point_vector.h:
:In file included from 29../src/s2/s2metrics.h:
:In file included from 34../src/s2/s2coder.h:
:In file included from 23../src/s2/s2coords.h:
:In file included from 105/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:/usr/local/clang/include/absl/log/internal/check_op.h31::
433/usr/local/clang/include/absl/synchronization/mutex.h::56802:: 19warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  433 |    802  |                          v o i d *   a b s l _ n u l l a b i l i t y _ u n k n o wcno nasrtg )c;h
a      r| *                  ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l289_:n34o:n nnote: uexpanded from macro 'absl_nullability_unknown'l
l e  x289p | r#tdeexfti)n e{ 
a      b| s                                                       ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:i lnote: iexpanded from macro 'absl_nonnull't
y_  u241n | k#ndoewfni n_eN ualbls_lu_nnsopnencuilfli e_dN
o      n| n                                 ^u
ll
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2metrics.cc      :| 31                     ^:

In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.hIn file included from :s2/s2lax_polyline_shape.cc105::
18In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2lax_polyline_shape.h21::
28In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/encoded_s2point_vector.h37::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2coder.h21::
23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h451::671:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 451/usr/local/clang/include/absl/strings/internal/cordz_info.h | :A31B:
S/usr/local/clang/include/absl/synchronization/mutex.hL:_814L:O42G:_ Iwarning: Ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T
ERN  A814L | _ D ECFoInNdEi_tMiAoKnE(_bCoHoElC K(_*OaPb_sSlT_RnIoNnGn_uElXlT EfRuNn(cb)o(oTl*) ;a
b      s| l^_
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l449a:b31i:l inote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'y
_un  k449n | o w ne)x,t
e      r| n                                         ^ 
te/usr/local/clang/include/absl/base/nullability.hm:p289l:a34t:e  note: cexpanded from macro 'absl_nullability_unknown'o
nst   289c | h#adre*f ianbes la_bnsoln_nnuullll aMbaikleiCthye_cuknOkpnSotwrni n_gN(u l l _\u
n      s| p                              ^e
c/usr/local/clang/include/absl/base/nullability.hi:f241i:e22d:
       note: | expanded from macro 'absl_nonnull'                                 ^

  241 | #define absl_noIn file included from ns2/s2lax_polyline_shape.ccn:u18l:
lIn file included from  ../src/s2/s2lax_polyline_shape.h_:N28o:
nIn file included from n../src/s2/encoded_s2point_vector.hu:l29l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from s2/s2metrics.cc/usr/local/clang/include/absl/strings/cord.h::3194:
:
In file included from In file included from ../src/s2/s2metrics.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::3431:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2coords.h::815105::
16In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h  :81537 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 451 : 1 :  Twarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l450_:n25u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
il  i450t | y _ u n k n oxw,n  xa,r gc)o;n
s      t|                 ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*289 :a34b:s lnote: _expanded from macro 'absl_nullability_unknown'n
on  n289u | l#ld)e
f      i| n                        ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bi  l241i | t#yd_eufniknneo wanb s_lN_unloln_nuunlslp e_cNiofnineudl
l      
|                                        ^| 
                     ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.hIn file included from :s2/s2metrics.cc29::
31In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2metrics.h23::
34In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2coords.h67::
105In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h94::
37In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h31::
21/usr/local/clang/include/absl/synchronization/mutex.h:
:/usr/local/clang/include/absl/log/internal/check_op.h830::45214::1 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    830452 |  |  A B S L _ LbOoGo_lI N(T*EaRbNsAlL__nDoEnFnIuNlEl_ MfAuKnEc_)C(HTE*C Ka_bOsPl__SnTuRlIlNaGb_iElXiTtEyR_Nu(niknnto6w4n_)t,)
;      
|                    ^| 
^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/check_op.h241::44922::31 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  241   | 449# | d e feixntee ranb stle_mnpolnantuel lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonIn file included from ns2/s2lax_polyline_shape.ccu:l18l:
 In file included from M../src/s2/s2lax_polyline_shape.ha:k28e:
CIn file included from h../src/s2/encoded_s2point_vector.he:c29k:
OIn file included from p../src/s2/s2coder.hS:t23r:
iIn file included from n/usr/local/clang/include/absl/status/status.hg:(67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h\:
29      :
| In file included from                               ^/usr/local/clang/include/absl/strings/cord.h
:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'830
:36  :241  | warning: #type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]d
efi  n830e |   a b s l _ nboononlu l(l* a_bNsoln_nnuolnln
u      l| l                     ^ 
func)(T* abIn file included from ss2/s2metrics.ccl:_31n:
uIn file included from l../src/s2/s2metrics.hl:a34b:
iIn file included from l../src/s2/s2coords.hi:t105y:
_In file included from u../src/s2/base/logging.hn:k21n:
oIn file included from w/usr/local/clang/include/absl/log/check.hn:)37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                   ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::452289::134::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullability_unknown'

/usr/local/clang/include/absl/log/internal/check_op.h:  450289: | 25#:d enote: fexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
ne   450a | b s l _ n u lxl,a bxi,l consitt yc_huanrk*n oawbns l__Nnuolnln_uulnls)p
e      c| i                        ^f
ie/usr/local/clang/include/absl/base/nullability.hd:
241      :| 22                                 ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2lax_polyline_shape.ccl: 18_:
NIn file included from o../src/s2/s2lax_polyline_shape.hn:n28u:
lIn file included from l../src/s2/encoded_s2point_vector.h
:      29| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2metrics.cc831: | 31 :
 In file included from  ../src/s2/s2metrics.h : 34 :
tIn file included from y../src/s2/s2coords.hp:e105n:
aIn file included from m../src/s2/base/logging.he: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl::37::
tIn file included from y/usr/local/clang/include/absl/log/internal/check_impl.hp:e21_:
i/usr/local/clang/include/absl/log/internal/check_op.hd:e453n:t1i:t ywarning: <type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
>::  t453y | pAeB*S La_bLsOlG__nIuNlTlEaRbNiAlLi_tDyE_FuInNkEn_oMwAnK
E      _| C                                             ^H
EC/usr/local/clang/include/absl/base/nullability.hK:_289O:P34_:S Tnote: Rexpanded from macro 'absl_nullability_unknown'I
NG  _289E | X#TdEeRfNi(nuei natb6s4l__tn)u;l
l      a| b^i
li/usr/local/clang/include/absl/log/internal/check_op.ht:y449_:u31n:k nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'w
n _  N449u | l l _euxntseprenc itfeimepdl
a      t| e                                 ^ 
const char* absl_nonnull MakeIn file included from Cs2/s2lax_polyline_shape.cch:e18c:
kIn file included from O../src/s2/s2lax_polyline_shape.hp:S28t:
rIn file included from i../src/s2/encoded_s2point_vector.hn:g29(:
 In file included from  ../src/s2/s2coder.h :\23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                              ^:
67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f844i:n10e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_  n844o | n n u l l   _TN*o nanbuslll_
n      o| n                     ^n
ull object,
      | In file included from          ^s2/s2metrics.cc
:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2metrics.h241::3422:
:In file included from  ../src/s2/s2coords.hnote: :expanded from macro 'absl_nonnull'105
:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n453o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_N/usr/local/clang/include/absl/log/internal/check_op.ho:n450n:u25l:l 
      note: | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'                     ^

  450 |       x, x, coIn file included from ns2/s2lax_polyline_shape.ccs:t18 :
cIn file included from h../src/s2/s2lax_polyline_shape.ha:r28*:
 In file included from a../src/s2/encoded_s2point_vector.hb:s29l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:)67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                        ^:
29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 845#:d45e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s845l | _ n o n n u lblo o_lN o(nanbuslll:
      |                      ^
:type_identity<T>::typeIn file included from :s2/s2metrics.cc::*31 :
aIn file included from b../src/s2/s2metrics.hs:l34_:
nIn file included from o../src/s2/s2coords.hn:n105u:
lIn file included from l../src/s2/base/logging.h :m21e:
tIn file included from h/usr/local/clang/include/absl/log/check.ho:d37):
(In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h):;21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                                            ^454
:1/usr/local/clang/include/absl/base/nullability.h:: 241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'454
 | A  B241S | L#_dLeOfGi_nIeN TaEbRsNlA_Ln_oDnEnFuIlNlE __MNAoKnEn_uClHlE
C      K| _                     ^O
P_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31:In file included from  s2/s2lax_polyline_shape.ccnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'18
:
In file included from ../src/s2/s2lax_polyline_shape.h:  28449:
 | In file included from  ../src/s2/encoded_s2point_vector.h :e29x:
tIn file included from e../src/s2/s2coder.hr:n23 :
tIn file included from e/usr/local/clang/include/absl/status/status.hm:p67l:
aIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he: 29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94 :
cIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.ha:r31*:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b850s:l16_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   850M | a k e C h e cckoOnpsStt rTi*n ga(b s l _\n
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h :o241b:j22e:c tnote: ,expanded from macro 'absl_nonnull'

      |                  ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _NonnIn file included from us2/s2metrics.ccl:l31
:
      In file included from | ../src/s2/s2metrics.h                     ^:
34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 454s2/s2lax_polyline_shape.cc::118::
 In file included from warning: ../src/s2/s2lax_polyline_shape.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/encoded_s2point_vector.h450::2925:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :45067 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from x/usr/local/clang/include/absl/strings/cord.h,: 94x:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hc:o31n:
s/usr/local/clang/include/absl/synchronization/mutex.ht: 851c:h45a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _851n | o n n u l l )b
o      o| l                        ^ 
(a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::t ynote: pexpanded from macro 'absl_nonnull'e
_i  d241e | n#tdietfyi<nTe> :a:btsylp_en:o:n*n ualbls l__Nnoonnnnuullll
       m| e                     ^t
hod)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2metrics.cce: 31a:
bIn file included from s../src/s2/s2metrics.hl:_34n:
oIn file included from n../src/s2/s2coords.hn:u105l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_IIn file included from Ns2/s2lax_polyline_shape.ccT:E18R:
NIn file included from A../src/s2/s2lax_polyline_shape.hL:_28D:
EIn file included from F../src/s2/encoded_s2point_vector.hI:N29E:
_In file included from M../src/s2/s2coder.hA:K23E:
_In file included from C/usr/local/clang/include/absl/status/status.hH:E67C:
KIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hO:P29_:
SIn file included from T/usr/local/clang/include/absl/strings/cord.hR:I94N:
GIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hE:X31T:
E/usr/local/clang/include/absl/synchronization/mutex.hR:N855(:d34o:u bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
);
        855|  | ^ 
 e/usr/local/clang/include/absl/log/internal/check_op.hx:p449l:i31c:i tnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'C
ond  i449t | i o ne(xctoenrsnt  tbeomopll*a taeb sclo_nnsotn ncuhlalr *c oanbds)l;_
n      o| n                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241M:a22k:e Cnote: hexpanded from macro 'absl_nonnull'e
ck  O241p | S#tdreifnign(e   a b\s
l      _| n                              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2lax_polyline_shape.cc::45518::
1In file included from :../src/s2/s2lax_polyline_shape.h :warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/encoded_s2point_vector.h/usr/local/clang/include/absl/log/internal/check_op.h::29450:
:In file included from 25../src/s2/s2coder.h:: 23note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
450In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :x94,:
 In file included from x/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31c:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s886t: 31c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s886l | _ n oenxnpullilc)i
t       | C                        ^o
nd/usr/local/clang/include/absl/base/nullability.hi:t241i:o22n:( cnote: oexpanded from macro 'absl_nonnull'n
st  241  | T#*d eafbisnle_ naobnsnlu_lnlo nonbujl)l
       _| N                              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2metrics.cc :_31N:
oIn file included from n../src/s2/s2metrics.hn:u34l:
lIn file included from 
../src/s2/s2coords.h      :| 105                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(charIn file included from )s2/s2lax_polyline_shape.cc;:
18      :
| In file included from ^../src/s2/s2lax_polyline_shape.h
:28/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 449../src/s2/encoded_s2point_vector.h::3129::
 In file included from note: ../src/s2/s2coder.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
23:
In file included from /usr/local/clang/include/absl/status/status.h  :44967 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.he:x29t:
eIn file included from r/usr/local/clang/include/absl/strings/cord.hn: 94t:
eIn file included from m/usr/local/clang/include/absl/strings/internal/cordz_info.hp:l31a:
t/usr/local/clang/include/absl/synchronization/mutex.he: 896c:o31n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har  *896  | a b selx_pnloincniutl lC oMnadkietCihoenc(kcOopnSsttr iTn*g (a b s l\_
n      o| n                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241o:b22j:) 
note:       expanded from macro 'absl_nonnull'| 
                              ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _NonnuIn file included from ls2/s2metrics.ccl:
31      :
| In file included from                      ^../src/s2/s2metrics.h
:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const cIn file included from hs2/s2lax_polyline_shape.cca:r18*:
 In file included from a../src/s2/s2lax_polyline_shape.hb:s28l:
_In file included from n../src/s2/encoded_s2point_vector.ho:n29n:
uIn file included from l../src/s2/s2coder.hl:)23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                        ^:
67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f922i:n48e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_no  n922n | u l ls t_aNtoincn ublolo
l       | G                     ^u
aranteedEqual(const Condition* In file included from as2/s2metrics.ccb:s31l:
_In file included from n../src/s2/s2metrics.hu:l34l:
aIn file included from b../src/s2/s2coords.hl:e105 :
aIn file included from ,../src/s2/base/logging.h
:      21| :
                                               ^In file included from 
/usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/internal/check_impl.h::2321::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nullable'457
:1:   257warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def  i457n | eA BaSbLs_lL_OnGu_lIlNaTbElReN A_LN_uDlElFaIbNlEe_
M      A| K                      ^E
_CHECK_OP_SIn file included from Ts2/s2lax_polyline_shape.ccR:I18N:
GIn file included from _../src/s2/s2lax_polyline_shape.hE:X28T:
EIn file included from R../src/s2/encoded_s2point_vector.hN:(29u:
nIn file included from s../src/s2/s2coder.hi:g23n:
eIn file included from d/usr/local/clang/include/absl/status/status.h :c67h:
aIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h^:
94:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::44931::
31/usr/local/clang/include/absl/synchronization/mutex.h:: 923note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'48
: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]449
 |     e923x | t eIn file included from  s2/s2max_distance_targets.ccr :n 16  :
t eIn file included from  m../src/s2/s2max_distance_targets.h p: l27 a:
 tIn file included from  e../src/s2/s1angle.h  :c o28 n:
s tIn file included from   ../src/s2/s2point.h c:h a27 r:
 *In file included from   ../src/s2/s2coder.h a: b23 s:
 lIn file included from  _/usr/local/clang/include/absl/status/status.h n: o67 n:
cnIn file included from uol/usr/local/clang/include/absl/status/internal/status_internal.hln: sM29ta:
 k/usr/local/clang/include/absl/strings/cord.heCC:oh1505ne:dc41ik:tO ipoSwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t*r
i nag (b 1505s  | l _in\nul
lil      nae| b                              ^ l
veo/usr/local/clang/include/absl/base/nullability.h ib:d) 241C;:o
r22      d:| :                                                ^:note: 
Cexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.ho
:p257  y:T24123o | :A# rdnote: rexpanded from macro 'absl_nullable'ea
yf  Ii257mn | p#el da(ecbfhsilanr_en*  oaabnbsnsllu__nlnuloln lna_ubNlolnlne u d_lsNtu)ll 
lca      obn| lset                     ^
 
      {| 
                      ^      
|                                         ^
In file included from s2/s2metrics.cc:31/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2metrics.h::2234::
 In file included from ../src/s2/s2coords.hnote: :expanded from macro 'absl_nonnull'105
:
In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sIn file included from /usr/local/clang/include/absl/log/internal/check_op.hls2/s2lax_polyline_shape.cc_::n45718o::
n1In file included from n:../src/s2/s2lax_polyline_shape.hu l:lwarning: 28 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
_
In file included from N/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/encoded_s2point_vector.ho::n45029n::
u25In file included from l:../src/s2/s2coder.hl :
23note:       :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'| In file included from 
                     ^/usr/local/clang/include/absl/status/status.h
:  67450:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.hx:,94 :
xIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t948 :c10h:a rwarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl  _948n | o n nbuololl) 
(      *| a                        ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:lIn file included from 22ls2/s2max_distance_targets.cc:a: b16lnote: :
expanded from macro 'absl_nonnull'eIn file included from 
 ../src/s2/s2max_distance_targets.he:v  27a241:
l | In file included from _#../src/s2/s1angle.h)d:(e28fci:
onIn file included from ne../src/s2/s2point.hs :at27b s:
ClIn file included from o_../src/s2/s2coder.hnn:do23ni:
tnIn file included from iu/usr/local/clang/include/absl/status/status.hol:nl67* :
 _In file included from aN/usr/local/clang/include/absl/status/internal/status_internal.hbo:ns29nlu:
_l/usr/local/clang/include/absl/strings/cord.hnl:o
1514n      :n| 29u                     ^:l
 lwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
= nu l1514l | p t r ; 
c      o| r         ^d
_iIn file included from /usr/local/clang/include/absl/base/nullability.hns2/s2metrics.cc:t:257e31:r:
23nIn file included from :a../src/s2/s2metrics.h lnote: ::expanded from macro 'absl_nullable':34
C:
  oIn file included from 257r../src/s2/s2coords.h | d:#Rd105eep:
f*iIn file included from  na../src/s2/base/logging.hbe:s 21la_:
bnsIn file included from ol/usr/local/clang/include/absl/log/check.hn_nn:uull37ll:
 atIn file included from br/usr/local/clang/include/absl/log/internal/check_impl.hle:ee21 )_:
 N/usr/local/clang/include/absl/log/internal/check_op.h{u
:l      458l| a                            ^:b
l1e:/usr/local/clang/include/absl/base/nullability.h
 :      241warning: | :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                      ^22

: note:   expanded from macro 'absl_nonnull'458
 | In file included from   As2/s2lax_polyline_shape.cc241B: | S18#L:
d_In file included from eL../src/s2/s2lax_polyline_shape.hfO:iG28n_:
eIIn file included from  N../src/s2/encoded_s2point_vector.haT:Eb29sR:
lNIn file included from _A../src/s2/s2coder.hnL:o_23nD:
nEIn file included from uF/usr/local/clang/include/absl/status/status.hlI:lN67E :
__In file included from MN/usr/local/clang/include/absl/status/internal/status_internal.hAo:nK29nE:
u_In file included from lC/usr/local/clang/include/absl/strings/cord.hlH:E
94C      :
K| In file included from                      ^_/usr/local/clang/include/absl/strings/internal/cordz_info.hO
:P31_:
S/usr/local/clang/include/absl/synchronization/mutex.hT:R948I:N48G:_ Ewarning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN  (948c | o n sbto oslt d(:*:asbtsrli_nngu&l)l;a
b      l| e^ 
ev/usr/local/clang/include/absl/log/internal/check_op.ha:l449_:)31(:c onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
t C  o449n | d i teixotne*r na btselm_pnloantneu lclo)n s=t  ncuhlalrp*t ra;b
s      l| _                                               ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :M anote: kexpanded from macro 'absl_nonnull'e
Ch  e241c | k#OdpeSftirnien ga(b s l _\n
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_nonnulIn file included from ls2/s2lax_polyline_shape.cc :_18N:
oIn file included from n../src/s2/s2lax_polyline_shape.hn:u28l:
lIn file included from 
../src/s2/encoded_s2point_vector.h      :| 29                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2metrics.cc::95131::
9In file included from In file included from :s2/s2max_distance_targets.cc../src/s2/s2metrics.h ::warning: 1634type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:

In file included from In file included from ../src/s2/s2max_distance_targets.h../src/s2/s2coords.h  ::95127105 | :
 :
In file included from  In file included from ../src/s2/s1angle.hv../src/s2/base/logging.h:o:28i21:
d:
In file included from *In file included from ../src/s2/s2point.h /usr/local/clang/include/absl/log/check.h:a:27b37:
s:
In file included from lIn file included from ../src/s2/s2coder.h_/usr/local/clang/include/absl/log/internal/check_impl.h:n:23u21:
l:
In file included from l/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.ha::b45867l::
e1In file included from  :/usr/local/clang/include/absl/status/internal/status_internal.ha :rwarning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g:

_/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h ::=1525450 :n:29u25:l: l warning: note: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't
r
; 
  1525      450 | |   |         ^   
   /usr/local/clang/include/absl/base/nullability.h   :cx257,o: rx23,d:_  cionnnote: sexpanded from macro 'absl_nullable'tt
e rc  hn257aa | lr#:*d :eaCfobirsndle_R neapob*ns nlau_lbnslu)l
l_      ln| ao                        ^bn
lneu /usr/local/clang/include/absl/base/nullability.hl_:lN 241utl:rle22aeb:)l  e{
note: 
expanded from macro 'absl_nonnull'            
| |                       ^                              ^
241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22In file included from n:s2/s2lax_polyline_shape.cce : note: 18expanded from macro 'absl_nonnull'a:

bIn file included from s  ../src/s2/s2lax_polyline_shape.hl241:_ | 28#n:
odnIn file included from en../src/s2/encoded_s2point_vector.huf:li29nl:
e In file included from  _../src/s2/s2coder.hNao:bn23nsu:
llIn file included from l_/usr/local/clang/include/absl/status/status.hn
:o      67n| :
                     ^nIn file included from u
/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   In file included from ss2/s2metrics.cct:a31t:
iIn file included from c../src/s2/s2metrics.h :b34o:
oIn file included from l../src/s2/s2coords.h :C105a:
lIn file included from l../src/s2/base/logging.hV:o21i:
dIn file included from P/usr/local/clang/include/absl/log/check.ht:r37F:
uIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hc:t21i:
o/usr/local/clang/include/absl/log/internal/check_op.hn:(459c:o1n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ondi  t459i | oAnB*S La_bLsOlG__nIoNnTnEuRlNlA Lc_)D;E
F      I| In file included from N                                                   ^Es2/s2max_distance_targets.cc_:M16A:
KIn file included from 
E../src/s2/s2max_distance_targets.h_:/usr/local/clang/include/absl/base/nullability.hC27:H:
241EIn file included from :C../src/s2/s1angle.h22K::_28 O:
note: PIn file included from _expanded from macro 'absl_nonnull'S../src/s2/s2point.h
T:R27  I:
241NIn file included from  | G../src/s2/s2coder.h#_:dE23eX:
fTIn file included from iE/usr/local/clang/include/absl/status/status.hnR:eN67 (:
acIn file included from bo/usr/local/clang/include/absl/status/internal/status_internal.hsn:ls29_t:
n /usr/local/clang/include/absl/strings/cord.hoa:nb1530ns:ul55:l::ls  twarning: _rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ni
onngn u_1530lv | lii
ne      lw| i                     ^n&
e) ;C
o      r| d^:
:C/usr/local/clang/include/absl/log/internal/check_op.hh:u449n:k31I:In file included from t s2/s2lax_polyline_shape.ccnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':r
18a:
tIn file included from   o../src/s2/s2lax_polyline_shape.hr449:: | 28: :
C In file included from he../src/s2/encoded_s2point_vector.hux:ntke29rIn:
t In file included from et../src/s2/s2coder.her:am23pt:
olIn file included from ra/usr/local/clang/include/absl/status/status.h(t:ce67o :
cnIn file included from so/usr/local/clang/include/absl/status/internal/status_internal.htn: s29Ct:
o In file included from rc/usr/local/clang/include/absl/strings/cord.hdh:a*r94*  aabb:
ssIn file included from ll/usr/local/clang/include/absl/strings/internal/cordz_info.h__:nn31oo:
n/usr/local/clang/include/absl/synchronization/mutex.hnn:un956lu:ll52 l:c  oMwarning: ratype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]kd
)e C  {h956
e |       c | k O                                                      ^sp
tSat/usr/local/clang/include/absl/base/nullability.htr:ii241cn: g22(b : o  \o
note: l      expanded from macro 'absl_nonnull' | 
                              ^C
  a241/usr/local/clang/include/absl/base/nullability.hs | :t#241Adn:ed22fCi:anl elnote:  expanded from macro 'absl_nonnull'Fa
ubn  sc241lt_ | i#noodnne(fnciuonlnles  t_ aNCboonsnln_dnuolninlutl
il      o | n                     ^_*
N oanbnsull_ln
o      n| n                     ^u
ll c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2metrics.ccexpanded from macro 'absl_nonnull':
31:
In file included from   ../src/s2/s2metrics.h241: | 34#:
dIn file included from e../src/s2/s2coords.hf:i105n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
_/usr/local/clang/include/absl/log/internal/check_op.hN:o459n:n1u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
| /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |   In file included from  s2/s2lax_polyline_shape.cc : 18 :
xIn file included from ,../src/s2/s2lax_polyline_shape.h :x28,:
 In file included from c../src/s2/encoded_s2point_vector.ho:n29s:
tIn file included from  ../src/s2/s2coder.hc:h23a:
rIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
)In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                        ^:

/usr/local/clang/include/absl/synchronization/mutex.h:958/usr/local/clang/include/absl/base/nullability.h::50241:: 22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  958   | 241  |  #sdteaftiince  baobosll _CnaosntnAunldlC a_lNloMnentuhlold
(      c| o                     ^n
st Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2metrics.cc::6731:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2metrics.h::2934:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2coords.h::94105:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/base/logging.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/check.h975::3731:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
/usr/local/clang/include/absl/log/internal/check_op.h:  460975: | 1 :  iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ine   v460o | iAdB SRLe_aLdOCGa_lIlNbTaEcRkN(ATL*_ DaEbFsIlN_En_oMnAnKuEl_lC HcEaClKl_bOaPc_kS)T RcIoNnGs_tE X{T
E      R| N                              ^(
c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb)s;l
_      n| o^n
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l449 :_31N:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
ll
        449|  |                      ^ 
 extern template conIn file included from ss2/s2lax_polyline_shape.cct: 18c:
hIn file included from a../src/s2/s2lax_polyline_shape.hr:*28 :
aIn file included from b../src/s2/encoded_s2point_vector.hs:l29_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :M67a:
kIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hC:h29e:
cIn file included from k/usr/local/clang/include/absl/strings/cord.hO:p94S:
tIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31g:
(/usr/local/clang/include/absl/synchronization/mutex.h : 979 :\43
:       | warning:                               ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :97922 | :   note: sexpanded from macro 'absl_nonnull't
at  i241c |  #bdoeofli nAel waabysslT_rnuoen(ncuolnls t_ NCoonnnduiltli
o      n| *                     ^ 
absl_nIn file included from us2/s2metrics.ccl:l31a:
bIn file included from l../src/s2/s2metrics.he:)34 :
{In file included from  ../src/s2/s2coords.hr:e105t:
uIn file included from r../src/s2/base/logging.hn: 21t:
rIn file included from u/usr/local/clang/include/absl/log/check.he:;37 :
}In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                          ^:

/usr/local/clang/include/absl/log/internal/check_op.h:460/usr/local/clang/include/absl/base/nullability.h::66257:: 23warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
  460   | 257A | B#SdLe_fLiOnGe_ IaNbTsElR_NnAuLl_lDaEbFlIeN E__NMuAlKlEa_bClHeE
C      K| _                      ^O
P_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DIn file included from Es2/s2lax_polyline_shape.ccF:I18N:
EIn file included from _../src/s2/s2lax_polyline_shape.hM:A28K:
EIn file included from _../src/s2/encoded_s2point_vector.hC:H29E:
CIn file included from K../src/s2/s2coder.h_:O23P:
_In file included from S/usr/local/clang/include/absl/status/status.hT:R67I:
NIn file included from G/usr/local/clang/include/absl/status/internal/status_internal.h_:E29X:
TIn file included from E/usr/local/clang/include/absl/strings/cord.hR:N94(:
cIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:s31t:
 /usr/local/clang/include/absl/synchronization/mutex.hc:h1033a:r20*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n o1033n | n u lvlo)i;d
       W| a^i
t(/usr/local/clang/include/absl/log/internal/check_op.hM:u450t:e25x:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl  _450n | o n n u l l  xm,u )x ,{ 
c      o| n                   ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli)n
e       | a                        ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: In file included from warning: s2/s2metrics.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
In file included from ../src/s2/s2metrics.h: 341050:
 | In file included from  ../src/s2/s2coords.h :b105o:
oIn file included from l../src/s2/base/logging.h :W21a:
iIn file included from t/usr/local/clang/include/absl/log/check.hW:i37t:
hIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hi:m21e:
o/usr/local/clang/include/absl/log/internal/check_op.hu:t461(:M1u:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s461l | _AnBoSnLn_uLlOlG _mIuN,T EaRbNsAlL:_:DDEuFrIaNtEi_oMnA KtEi_mCeHoEuCtK)_ O{P
_      S| T                              ^R
IN/usr/local/clang/include/absl/base/nullability.hG:_241E:X22T:E Rnote: Nexpanded from macro 'absl_nonnull'(

      |   ^241
 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e449f:i31n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl_  n449o | n n uelxlt e_rNno ntneumlpll
a      t| e                     ^ 
const char* absl_nonnull MakeCIn file included from hs2/s2lax_polyline_shape.cce:c18k:
OIn file included from p../src/s2/s2lax_polyline_shape.hS:t28r:
inIn file included from g../src/s2/encoded_s2point_vector.h(: 29 :
 In file included from \../src/s2/s2coder.h
:      23| :
                              ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f1069i:n32e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no n1069n | u l lb o_oNlo nWnauiltlW
i      t| h                     ^D
eadliIn file included from ns2/s2metrics.cce:(31M:
uIn file included from t../src/s2/s2metrics.he:x34*:
 In file included from a../src/s2/s2coords.hb:s105l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37m:
uIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl::462::T24i:m ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
ea  d462l | i n e )  c{o
n      s| t                               ^ 
si/usr/local/clang/include/absl/base/nullability.hg:n241e:d22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb)s;l
_      n| o                       ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:In file included from 28s2/s2metrics.cc:
:In file included from 31../src/s2/encoded_s2point_vector.h:
:In file included from 29../src/s2/s2metrics.h:
:In file included from 34../src/s2/s2coder.h:
:In file included from 23../src/s2/s2coords.h:
:In file included from 105/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:/usr/local/clang/include/absl/log/internal/check_op.h31::
462/usr/local/clang/include/absl/synchronization/mutex.h::241088:: 35warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:  1088note:  | expanded from macro 'absl_nonnull' 
 v  o241i | d# dEenfaibnlee Daebbsulg_Lnoogn(ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nullaIn file included from bs2/s2metrics.ccl:e31 :
nIn file included from a../src/s2/s2metrics.hm:e34):
;In file included from 
../src/s2/s2coords.h      :| 105                                  ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
257In file included from :/usr/local/clang/include/absl/log/check.h23::37 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  /usr/local/clang/include/absl/log/internal/check_op.h257: | 461#:d1e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s461l | _AnBuSlLl_aLbOlGe_ I_NNTuEIn file included from lRs2/s2max_distance_targets.cclN:aA16bL:
l_In file included from eD../src/s2/s2max_distance_targets.h
E:F      I27| N:
E                      ^In file included from _
M../src/s2/s1angle.hA:K28E:
_In file included from C../src/s2/s2point.hH:E27CIn file included from :
Ks2/s2lax_polyline_shape.ccIn file included from _:../src/s2/s2coder.hO18:P:
_23SIn file included from :
T../src/s2/s2lax_polyline_shape.hIn file included from R:I/usr/local/clang/include/absl/status/status.h28N::
G67_In file included from :
E../src/s2/encoded_s2point_vector.hXIn file included from :T/usr/local/clang/include/absl/status/internal/status_internal.hE29R:N:
(29In file included from 
:
../src/s2/s2coder.h      :/usr/local/clang/include/absl/strings/cord.h| 23:^:
1666
In file included from :/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h48:::45067 ::
warning: 25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h :note: 29 expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
1666
In file included from  | /usr/local/clang/include/absl/strings/cord.h  i:n45094l | :
i In file included from n /usr/local/clang/include/absl/strings/internal/cordz_info.he :  31 C :
xo/usr/local/clang/include/absl/synchronization/mutex.h,r :xd1091,  :cC26oo:rn dswarning: t: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:h
aArd v*1091a  | anb scle _AbnnoodoRnlne auWldal(i)Ct
hC      aorm| I                        ^mt
oen/usr/local/clang/include/absl/base/nullability.hr(aM:tuo241tre:*x22 *a :basb lsnote: _lnexpanded from macro 'absl_nonnull'_o
nnon  nu241nlu | l#ld lie fti,nme
 u      at| bes                                               ^xl
_,n
o/usr/local/clang/include/absl/base/nullability.h      n:| n241                         ^u:
l22l:/usr/local/clang/include/absl/base/nullability.h  :_241Nnote: :oexpanded from macro 'absl_nonnull'n22n
u:l   l241note: 
 | expanded from macro 'absl_nonnull'#      
d|   e                     ^241f
 | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNlolIn file included from n
ns2/s2metrics.cc      u:| l                     ^31l

:
      In file included from | ../src/s2/s2metrics.h                     ^:
34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2lax_polyline_shape.cc
:18:
In file included from   ../src/s2/s2lax_polyline_shape.h463: | 28A:
BIn file included from S../src/s2/encoded_s2point_vector.hL:_29L:
OIn file included from G../src/s2/s2coder.h_:I23N:
TIn file included from E/usr/local/clang/include/absl/status/status.hR:N67A:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hD:E29F:
IIn file included from In file included from Ns2/s2max_distance_targets.cc/usr/local/clang/include/absl/strings/cord.hE::_1694M:
A:
KIn file included from In file included from E../src/s2/s2max_distance_targets.h/usr/local/clang/include/absl/strings/internal/cordz_info.h_:C:H2731E:
:
C/usr/local/clang/include/absl/synchronization/mutex.hIn file included from K:_../src/s2/s1angle.hO1093:P:28_46S:
T:In file included from R ../src/s2/s2point.hI:Nwarning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G:

_In file included from E../src/s2/s2coder.h X:T1093E23R | :
 NIn file included from  (/usr/local/clang/include/absl/status/status.h
v:      o67i| :
^dIn file included from  
/usr/local/clang/include/absl/status/internal/status_internal.hR:/usr/local/clang/include/absl/log/internal/check_op.he29m::
o449/usr/local/clang/include/absl/strings/cord.hv::e311672(::b 41anote: :sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' e
warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
n  t449e |  r 1672 ne | xitaenrll:in: ntPeee mvprolTiahtdre  ecCooarnddSs:y:tnA cdchhvaa*rn c*ae ba(bCsshlla_r_nnIotonennrunlautll oMra*l k aesb)Csh;e
lc      k_| nO                                             ^op
nSn/usr/local/clang/include/absl/base/nullability.hut:lr241li:n g22i(:t  , note:  expanded from macro 'absl_nonnull's 
i\  z
241e       | _#| td                               ^enf
_ib/usr/local/clang/include/absl/base/nullability.hnye:t e241asb):s 22l{:_
 n      note: oexpanded from macro 'absl_nonnull'| n                                        ^
n
u  l241/usr/local/clang/include/absl/base/nullability.hl | :# d241e_:fNi22no:en  annote: buexpanded from macro 'absl_nonnull'ls
ll  
_241      n | | #o                     ^dn
enfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _NonIn file included from ns2/s2metrics.ccu:l31l:

In file included from       ../src/s2/s2metrics.h| :                     ^34
:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2lax_polyline_shape.cc
:      18| :
                     ^In file included from 
../src/s2/s2lax_polyline_shape.h:28:
In file included from In file included from ../src/s2/encoded_s2point_vector.hs2/s2metrics.cc::2931:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2metrics.h::2334:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2coords.h::67105:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::9437:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::1109463::341::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   4631109 |  | A B SeLx_pLlOiGc_iINTEtR NMAuLt_eDxELFoIcNkEM_aMAyKbEe_(CMHuEtCeKx_*O Pa_bSsTlR_InNuGl_lEaXbTlEeR Nm(u
)      
|       ^| 
                                 ^
/usr/local/clang/include/absl/log/internal/check_op.h:450/usr/local/clang/include/absl/base/nullability.h::25257:: 23note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
note:   expanded from macro 'absl_nullable'450
 |     257  |  # d exf,i nxe,  acbosnls_tn uclhlaarb*l ea b_sNlu_lnloanbnluel
l      )| 
                      ^      
|                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2lax_polyline_shape.cc :_18N:
oIn file included from n../src/s2/s2lax_polyline_shape.hn:u28l:
lIn file included from 
../src/s2/encoded_s2point_vector.h      :| 29                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   In file included from es2/s2metrics.ccx:p31l:
iIn file included from c../src/s2/s2metrics.hi:t34 :
MIn file included from u../src/s2/s2coords.ht:e105x:
LIn file included from o../src/s2/base/logging.hc:k21M:
aIn file included from y/usr/local/clang/include/absl/log/check.hb:e37(:
MIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.ht:e21x:
*/usr/local/clang/include/absl/log/internal/check_op.h :a465b:s1l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab  l465e |  AmBuS,L _cLoOnGs_tI NCToEnRdNiAtLi_oDnE&F IcNoEn_dM)A
K      E| _                                 ^C
HE/usr/local/clang/include/absl/base/nullability.hC:K257_:O23P:_ Snote: Texpanded from macro 'absl_nullable'R
I  N257G | _#EdXeTfEiRnNe( caobnsslt_ nvuolilda*b laeb s_lN_unlolnanull)b;l
e      
|       ^| 
                      ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_noIn file included from ns2/s2lax_polyline_shape.ccn:u18l:
lIn file included from  ../src/s2/s2lax_polyline_shape.hM:a28k:
eIn file included from C../src/s2/encoded_s2point_vector.hh:e29c:
kIn file included from O../src/s2/s2coder.hp:S23t:
rIn file included from i/usr/local/clang/include/absl/status/status.hn:g67(:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :\29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                              ^:
94:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h241::3122:
: /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'1132
:10  :241  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi n1132e |   a bMsult_enxo*n naublsll __nNuolnlnaubllle
       c| o                     ^n
st muIn file included from _s2/s2metrics.cc;:
31      :
| In file included from          ^../src/s2/s2metrics.h
:34:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coords.h257::10523:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'absl_nullable'21
:
In file included from /usr/local/clang/include/absl/log/check.h  :25737 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 465a:b66s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b465l | eA B_SNLu_lLlOaGb_lIeN
T      E| R                      ^N
AL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465In file included from :s2/s2lax_polyline_shape.cc1::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2lax_polyline_shape.h
:28:
In file included from   ../src/s2/encoded_s2point_vector.h465: | 29A:
BIn file included from S../src/s2/s2coder.hL:_23L:
OIn file included from G/usr/local/clang/include/absl/status/status.h_:I67N:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hR:N29A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hD:E94F:
IIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hE:_31M:
A/usr/local/clang/include/absl/synchronization/mutex.hK:E1146_:C7H:E Cwarning: K'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
OP_S T1146R | I N G _ E X TtEhRiNs()c)o nAsBtS Lv_oEiXdC*L UaSbIsVlE__nLoOnCnKu_lFlU)N;C
T      I| O^N
(m/usr/local/clang/include/absl/log/internal/check_op.hu:)450
:      25| :      ^~~~ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_no/usr/local/clang/include/absl/synchronization/mutex.hn:n1153u:l39l:) 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                        ^

/usr/local/clang/include/absl/base/nullability.h: 2411153: | 22 :  enote: xexpanded from macro 'absl_nonnull'p
li  c241i | t# dReeflienaes aabblselM_untoenxnLuolclk (_MNuotnenxu*l la
b      s| l                     ^_
nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2metrics.ccl:l31
:
      In file included from | ../src/s2/s2metrics.h                     ^:
34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INIn file included from Ts2/s2lax_polyline_shape.ccE:R18N:
AIn file included from L../src/s2/s2lax_polyline_shape.h_:C28H:
EIn file included from C../src/s2/encoded_s2point_vector.hK:_29O:
PIn file included from _../src/s2/s2coder.hI:M23P:
LIn file included from (/usr/local/clang/include/absl/status/status.hC:h67e:
cIn file included from k/usr/local/clang/include/absl/status/internal/status_internal.h_:E29Q:
,In file included from  /usr/local/clang/include/absl/strings/cord.h=:=94):

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :^31
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::1158488::5332::  warning: note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

   4881158 |  |     i n l i nMeu tceoxn&s tmeux pArB ScLo_nIsNtT EcRhNaArL*_ AaTbTsRlI_BnUuTlEl_aCbAlPeT UnRaEmDe_#B#YI(mtphli(s ) , 
        |                                                      ^~~~ 
            \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define ab/usr/local/clang/include/absl/synchronization/mutex.hs:l1166_:n39:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble  _1166N | u l leaxbpllei
c      i| t                      ^ 
ReleasableMuIn file included from ts2/s2metrics.cce:x31L:
oIn file included from c../src/s2/s2metrics.hk:(34M:
uIn file included from t../src/s2/s2coords.he:x105*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21m:
u/usr/local/clang/include/absl/log/internal/check_op.h,: 502c:o1n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
on/usr/local/clang/include/absl/log/internal/check_op.hd:i489t:i47o:n &note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'c
ond  )489
 |        |                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: Texpanded from macro 'absl_nonnull'1
&   v2411 | ,# dceofnisnte  Ta2b&s lv_2n,o ncnounlslt  _cNhoanrn*u labls
l      _| n                     ^o
nnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2lax_polyline_shape.ccn:u18l:
lIn file included from  ../src/s2/s2lax_polyline_shape.h_:N28o:
nIn file included from n../src/s2/encoded_s2point_vector.hu:l29l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34In file included from :s2/s2measures.cc :note: 18expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/s2measures.h:  24289:
 | In file included from #../src/s2/s2point.hd:e25f:
iIn file included from n../src/s2/util/coding/coder.he: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
uIn file included from l../src/s2/base/logging.hl:a21b:
iIn file included from l/usr/local/clang/include/absl/log/check.hi:t37y:
_In file included from u/usr/local/clang/include/absl/log/internal/check_impl.hn:k21n:
ow/usr/local/clang/include/absl/log/internal/check_op.hn: 180_:N42u:l lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
nspec  i180f | iAeBdS
L      _| A                                 ^T
TRIBUTE_PURE_FUIn file included from Ns2/s2lax_polyline_shape.ccC:T18I:
OIn file included from N../src/s2/s2lax_polyline_shape.h :c28o:
nIn file included from s../src/s2/encoded_s2point_vector.ht: 29c:
hIn file included from a../src/s2/s2coder.hr:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :M94a:
kIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hC:h31e:
c/usr/local/clang/include/absl/synchronization/mutex.hk:F1231a:i8l:S twarning: rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i
ng (1231
 |        |                                           ^ 
 T* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  i241l | i#tdye_fuinnken oawbns la_rngo)n
n      u| l       ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o289n:n34u:l lnote: 
expanded from macro 'absl_nullability_unknown'      
|                      ^
  289 | #define aIn file included from bs2/s2measures.ccs:l18_:
nIn file included from u../src/s2/s2measures.hl:l24a:
bIn file included from i../src/s2/s2point.hl:i25t:
yIn file included from _../src/s2/util/coding/coder.hu:n36k:
nIn file included from o../src/s2/base/casts.hw:n36 :
_In file included from N../src/s2/base/logging.hu:l21l:
_In file included from u/usr/local/clang/include/absl/log/check.hn:s37p:
eIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hi:f21i:
e/usr/local/clang/include/absl/log/internal/check_op.hd:
181      :| 25                                 ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      In file included from | s2/s2lax_polyline_shape.cc                        ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2lax_polyline_shape.h::24128::
22In file included from :../src/s2/encoded_s2point_vector.h :note: 29expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.h_:N1241o:n12n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1241 |     boolIn file included from  s2/s2measures.cc(:*18a:
bIn file included from s../src/s2/s2measures.hl:_24n:
oIn file included from n../src/s2/s2point.hn:u25l:
lIn file included from  ../src/s2/util/coding/coder.hf:u36n:
cIn file included from )../src/s2/base/casts.h(:T36*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hi:l21i:
t/usr/local/clang/include/absl/log/internal/check_op.hy:_181u:n58k:n owarning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
),
        | 181           ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'a
bs  l241: | :#Sdteaftiunse*  aabbssll__nnoonnnnuullll  _sNtoantnuusl,l 
c      o| n                     ^s
t charIn file included from *s2/s2lax_polyline_shape.cc :a18b:
sIn file included from l../src/s2/s2lax_polyline_shape.h_:n28o:
nIn file included from n../src/s2/encoded_s2point_vector.hu:l29l:
 In file included from p../src/s2/s2coder.hr:e23f:
iIn file included from x/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                                                         ^:
29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
/usr/local/clang/include/absl/synchronization/mutex.h  :2411241 | :#34d:e fwarning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
e a b1241s | l _ n o nbnouolll  (_*Naobnsnlu_lnlo
n      n| u                     ^l
l func)(T* absl_nullability_In file included from us2/s2measures.ccn:k18n:
oIn file included from w../src/s2/s2measures.hn:)24,:

In file included from       ../src/s2/s2point.h| :                                 ^25
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/util/coding/coder.h::28936::
34In file included from :../src/s2/base/casts.h :note: 36expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/base/logging.h:  21289:
 | In file included from #/usr/local/clang/include/absl/log/check.hd:e37f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l189_:n28u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
i  l189i | tiyn_luinnken ocwonn s_tN ualbls_lu:n:sSpteactiufsi*e da
b      s| l                                 ^_
nonnull AsStatus(const absIn file included from ls2/s2lax_polyline_shape.cc:::18S:
tIn file included from a../src/s2/s2lax_polyline_shape.ht:u28s:
&In file included from  ../src/s2/encoded_s2point_vector.hs:)29 :
{In file included from 
../src/s2/s2coder.h      :| 23                           ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1242e: 44a:b swarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
non n1242u | l l   _ Ntoynpneunlalm
e       | a                     ^b
sl::type_identity<T>::type* absl_nullability_unknown
      | In file included from                                            ^s2/s2measures.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2measures.h289::2434:
:In file included from  ../src/s2/s2point.hnote: :expanded from macro 'absl_nullability_unknown'25
:
In file included from ../src/s2/util/coding/coder.h  :28936 | :
#In file included from d../src/s2/base/casts.he:f36i:
nIn file included from e../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21i:
l/usr/local/clang/include/absl/log/internal/check_op.hi:t193y:_21u:n kIn file included from warning: ns2/s2metrics.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:
w31n:
   In file included from _193N../src/s2/s2metrics.h | u:cl34ol:
_nIn file included from us../src/s2/s2coords.hnts: p105ae:
cbIn file included from is../src/s2/base/logging.hlf::i:e21Sd:
t
In file included from a      /usr/local/clang/include/absl/log/check.ht| :u                                 ^37s
:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n503o:n1n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
AsS  t503a | tAuBsS(Lc_oLnOsGt_ IaNbTsElR:N:ASLtIn file included from _as2/s2lax_polyline_shape.ccCt:HuE18sC:
OKIn file included from r_../src/s2/s2lax_polyline_shape.h<O:TP>28_&:
I In file included from MsP../src/s2/encoded_s2point_vector.h)L: (29{C
:
h      In file included from e| c                    ^../src/s2/s2coder.hk
:_23N/usr/local/clang/include/absl/base/nullability.h:
E:,In file included from 241 /usr/local/clang/include/absl/status/status.h:!:22=67:):
 
In file included from note:       expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h| 
^:
  29241:
/usr/local/clang/include/absl/log/internal/check_op.h | In file included from :#/usr/local/clang/include/absl/strings/cord.h488d::e9432f:
:iIn file included from  n/usr/local/clang/include/absl/strings/internal/cordz_info.hnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL': 
a31b:
  s/usr/local/clang/include/absl/synchronization/mutex.h488l: | _ 1249n o:inn8nlu:iln le warning:  _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]cNo
onns ntu1249elx | l 
p       r |   T                     ^c*
 oanbsstl _chnaorn*n ualbls lo_bnjuelclta,b
l      e|         ^n
am/usr/local/clang/include/absl/base/nullability.he:#241#:I22m:p In file included from lnote: s2/s2measures.cc(expanded from macro 'absl_nonnull': 
18 :
   In file included from  241../src/s2/s2measures.h  | : #24d e:
 fIn file included from  i../src/s2/s2point.h n:e 25  :
 aIn file included from  b../src/s2/util/coding/coder.h s: l36 _:
 nIn file included from  o../src/s2/base/casts.h\n:
n36u      :
l| In file included from l                               ^../src/s2/base/logging.h 
:_21N/usr/local/clang/include/absl/base/nullability.h:
o:In file included from n257/usr/local/clang/include/absl/log/check.hn::u2337l:l:
 
note: In file included from expanded from macro 'absl_nullable'      /usr/local/clang/include/absl/log/internal/check_impl.h
| :                     ^  21
257:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d202e:f46i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  nIn file included from 202us2/s2lax_polyline_shape.cc | l :l a18ebx:
lpeIn file included from l i../src/s2/s2lax_polyline_shape.h_cN:iut28l l:
CahIn file included from belc../src/s2/encoded_s2point_vector.hek:
O29      p:
| MIn file included from                       ^e../src/s2/s2coder.h
s:s23a:
gIn file included from e/usr/local/clang/include/absl/status/status.hB:u67i:
lIn file included from In file included from d/usr/local/clang/include/absl/status/internal/status_internal.hs2/s2metrics.cce::r2931(:
:
cIn file included from In file included from o/usr/local/clang/include/absl/strings/cord.h../src/s2/s2metrics.hn::s9434t:
:
 In file included from In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2coords.hh::a31105r:
:
*/usr/local/clang/include/absl/synchronization/mutex.hIn file included from  :../src/s2/base/logging.ha1250:b:21s43:
l:In file included from _ /usr/local/clang/include/absl/log/check.hwarning: n:otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37n
:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl :l125021  | :
e /usr/local/clang/include/absl/log/internal/check_op.h x :p 503rbto:oe1xl:t  )(warning: ;atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
s
      l| /usr/local/clang/include/absl/log/internal/check_op.h                                             ^:::
489t:/usr/local/clang/include/absl/base/nullability.hy47:p:241e :_note: i22expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'd:
e nnote:   expanded from macro 'absl_nonnull't489i
t |   y <241 T |  #> d :e: tfcyionpnees: ta b:Ts1*l&_  navbos1nl,n_ uncolonln ns_tuN lolTn2 n&mu elvlt2h
o,      d | )c                     ^(o
)n)s
t       | c                                          ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l exp#rdteefxitn)e  {a b sIn file included from  ls2/s2measures.cc_ : n18\o:

nIn file included from       n../src/s2/s2measures.h| u:                                              ^l24l
:
 In file included from _/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.hN:o:241n25:n:
22uIn file included from :l../src/s2/util/coding/coder.h l:
note: 36expanded from macro 'absl_nonnull'      :

| In file included from                      ^  ../src/s2/base/casts.h
241: | 36#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l209l: 15_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  
209       | |                       ^ 
const char* absl_nonnull NeIn file included from ws2/s2lax_polyline_shape.ccS:t18r:
iIn file included from n../src/s2/s2lax_polyline_shape.hg:(28):
;In file included from 
../src/s2/encoded_s2point_vector.h      :| 29              ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/status/status.h22::67 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29  :
241In file included from  | /usr/local/clang/include/absl/strings/cord.h#:d94e:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s1259l:_14n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll  _1259N | In file included from o s2/s2metrics.ccn :n 31u :
cloIn file included from ln../src/s2/s2metrics.hs
t:       34| T:
                     ^*In file included from 
 ../src/s2/s2coords.ha:b105s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
oIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hj:e21c:
t/usr/local/clang/include/absl/log/internal/check_op.h,:
503      :| 1             ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22/usr/local/clang/include/absl/log/internal/check_op.h:: 497note: :expanded from macro 'absl_nonnull'32
:   note: 241expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' | 
#def  i497n | e   aibnslli_nneo ncnounlslt e_xNporn ncuolnls
t       | c                     ^h
ar* absl_nullable name#In file included from #s2/s2lax_polyline_shape.ccI:m18p:
lIn file included from (../src/s2/s2lax_polyline_shape.h : In file included from 28 s2/s2measures.cc:
 : In file included from 18 ../src/s2/encoded_s2point_vector.h:
 :In file included from  29../src/s2/s2measures.h :
: In file included from 24 ../src/s2/s2coder.h:
 :In file included from  23../src/s2/s2point.h :
: In file included from 25 /usr/local/clang/include/absl/status/status.h:
 :In file included from  67../src/s2/util/coding/coder.h :
:\In file included from 36
/usr/local/clang/include/absl/status/internal/status_internal.h:
      :In file included from | 29../src/s2/base/casts.h                               ^:
:
In file included from 36/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h:
::In file included from 94257../src/s2/base/logging.h:
::In file included from 2321/usr/local/clang/include/absl/strings/internal/cordz_info.h::
: In file included from 31note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nullable':
:
/usr/local/clang/include/absl/synchronization/mutex.h37  ::
2571260In file included from  | :/usr/local/clang/include/absl/log/internal/check_impl.h#43:d:21e :
fwarning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i:n
226e: 59 a:1260b s | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l 
_ n u  blo226lo | avblol ie(d a _MbNasulkl:elC:ahtbeylpec
ek_      Oi| p                      ^dV
eanltuietSyt<In file included from rTs2/s2metrics.cci>:n:31g::
t(In file included from sy../src/s2/s2metrics.htp:ed34:::
::In file included from o*../src/s2/s2coords.hs :ta105rb:
esIn file included from al../src/s2/base/logging.hm_:n&21o :
onIn file included from ns/usr/local/clang/include/absl/log/check.hu,: l37cl:
o In file included from nm/usr/local/clang/include/absl/log/internal/check_impl.hse:tt21 h:
v/usr/local/clang/include/absl/log/internal/check_op.hoo:di)503d(:*)1 
:a       b| warning:                                           ^stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

_/usr/local/clang/include/absl/base/nullability.hn/usr/local/clang/include/absl/log/internal/check_op.h:u:l241498l::a2235b::l  enote: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 

p  )241  ; | 498
# | d      e | f                                                           ^i 
 n e/usr/local/clang/include/absl/base/nullability.h  :ia257nb:ts23 l:_v n1onote: ,expanded from macro 'absl_nullable'n 
innu  tl257 l | v #2d_,e Nfcioonnnnes utal blcs
hla      _rn| *u                      ^lalb
asbll_en o_nNnuulllla belxep
r      t| e                      ^x
t) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2lax_polyline_shape.cce: 18a:
bIn file included from s../src/s2/s2lax_polyline_shape.hl:_28n:
oIn file included from n../src/s2/encoded_s2point_vector.hn:u29l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2measures.cce:f18i:
nIn file included from e../src/s2/s2measures.h :a24b:
sIn file included from l../src/s2/s2point.h_:n25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:
 In file included from _../src/s2/base/casts.hN:o36n:
nIn file included from u../src/s2/base/logging.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                     ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const voiIn file included from ds2/s2lax_polyline_shape.cc*: 18a:
bIn file included from s../src/s2/s2lax_polyline_shape.hl:_28n:
uIn file included from l../src/s2/encoded_s2point_vector.hl:a29b:
lIn file included from e../src/s2/s2coder.h :o23p:
eIn file included from r/usr/local/clang/include/absl/status/status.ha:t67o:
rIn file included from </usr/local/clang/include/absl/status/internal/status_internal.h<:(29s:
tIn file included from d/usr/local/clang/include/absl/strings/cord.h:::94o:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hr:e31a:
m/usr/local/clang/include/absl/synchronization/mutex.h&:,1293
:      33| :            ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:  note: 1293expanded from macro 'absl_nullable' | 
vo  i257d |  #Rdeegfiisntee raMbustle_xnTurlalcaebrl(ev o_iNdu l(l*aabblsel
_      n| o                      ^n
null fn)(coIn file included from ns2/s2measures.ccs:t18 :
cIn file included from h../src/s2/s2measures.ha:r24*:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 36m:
sIn file included from g../src/s2/base/logging.h,:
21      :
| In file included from                                 ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:/usr/local/clang/include/absl/log/internal/check_op.h :note: 277expanded from macro 'absl_nonnull':
50:   241warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
def  i277n | e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
     In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from c../src/s2/s2lax_polyline_shape.ho:n28s:
tIn file included from  ../src/s2/encoded_s2point_vector.hv:o29i:
dIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:b29l:
eIn file included from  /usr/local/clang/include/absl/strings/cord.hv:a94l:
uIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h):;31
:
      /usr/local/clang/include/absl/synchronization/mutex.h| :                                                 ^1293
:62:/usr/local/clang/include/absl/base/nullability.h :warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:  note: 1293expanded from macro 'absl_nullable' | 
vo  i257d |  #Rdeegfiisntee raMbustle_xnTurlalcaebrl(ev o_iNdu l(l*aabblsel
_      n| o                      ^n
null fn)(const char*In file included from  s2/s2measures.cca:b18s:
lIn file included from _../src/s2/s2measures.hn:o24n:
nIn file included from u../src/s2/s2point.hl:l25 :
mIn file included from s../src/s2/util/coding/coder.hg:,36
:
      In file included from | ../src/s2/base/casts.h                                                             ^:
36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e278f:i13n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_  n278o | ncnounlslt  _vNooindn*u lalb
s      l| _                     ^n
ullable In file included from os2/s2lax_polyline_shape.ccp:e18r:
aIn file included from t../src/s2/s2lax_polyline_shape.ho:r28<:
<In file included from (../src/s2/encoded_s2point_vector.hs:t29d:
:In file included from :../src/s2/s2coder.ho:s23t:
rIn file included from e/usr/local/clang/include/absl/status/status.ha:m67&:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hs:t29d:
:In file included from :/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.ht:r31_:
t/usr/local/clang/include/absl/synchronization/mutex.h):;1294
:      62| :            ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:  1294note:  | expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
        const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.hIn file included from :s2/s2lax_polyline_shape.cc36::
18In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2lax_polyline_shape.h21::
28In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/encoded_s2point_vector.h37::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2coder.h21::
23/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 292/usr/local/clang/include/absl/status/status.hIn file included from ::s2/s2max_distance_targets.cc1367:::
16 In file included from :
warning: /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2max_distance_targets.h29
::
27In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from   :../src/s2/s1angle.h29294: | :
c28In file included from o:
/usr/local/clang/include/absl/strings/internal/cordz_info.hnIn file included from :s../src/s2/s2point.h31t::
 /usr/local/clang/include/absl/synchronization/mutex.h27c::
h1309In file included from a:../src/s2/s2coder.hr35:*:23  :
aIn file included from warning: b/usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:
l67_:
 n1309o/usr/local/clang/include/absl/status/internal/status_internal.h | n:vn119ou:il14dl:   Rowarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]pg
iesr  ta119et | orr C <oSn<tda(VtausrstTRdre:a:pbc*ea rsai(bvcsol_i_don o(sn*ntaubrlslel _Canloomn<nnceuh(l
al      r ,| f              ^nT
)r(a
i      t| s                                  ^>
&,/usr/local/clang/include/absl/base/nullability.h
/usr/local/clang/include/absl/base/nullability.h:      :241| 241:            ^:22
22::  /usr/local/clang/include/absl/base/nullability.hnote: note: :expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'241

:  22241  : | 241#  | dnote: #eexpanded from macro 'absl_nonnull'dfe
ifn  ie241n e | a# bdasbelsf_lin_nonneonn unlaullb l_s Nl_oN_nonnnounlnulnl
ul      
l|       l                     ^|  
                     ^_
NIn file included from os2/s2lax_polyline_shape.ccn:In file included from n18s2/s2metrics.ccu:
:lIn file included from 31l../src/s2/s2lax_polyline_shape.h:

:In file included from       28../src/s2/s2metrics.h| :
:                     ^In file included from 34
../src/s2/encoded_s2point_vector.h:
:In file included from 29../src/s2/s2coords.h:
:In file included from 105../src/s2/s2coder.h:
:In file included from 23In file included from ../src/s2/base/logging.h:
s2/s2max_distance_targets.ccIn file included from :In file included from :s2/s2measures.cc21/usr/local/clang/include/absl/status/status.h16::
::
18In file included from 67In file included from :
/usr/local/clang/include/absl/log/check.h:
../src/s2/s2max_distance_targets.hIn file included from :In file included from :../src/s2/s2measures.h37/usr/local/clang/include/absl/status/internal/status_internal.h27::
::
24In file included from 29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h:
../src/s2/s1angle.hIn file included from :In file included from :../src/s2/s2point.h21/usr/local/clang/include/absl/strings/cord.h28::
::
2594/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :
:
:../src/s2/s2point.hIn file included from In file included from 504:../src/s2/util/coding/coder.h/usr/local/clang/include/absl/strings/internal/cordz_info.h:27::1:
3631:In file included from :
:
 ../src/s2/s2coder.hIn file included from /usr/local/clang/include/absl/synchronization/mutex.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/base/casts.h:23
:1310:
36:  In file included from :
17504/usr/local/clang/include/absl/status/status.hIn file included from : | :../src/s2/base/logging.h A67:warning: B:
21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S/usr/local/clang/include/absl/status/internal/status_internal.h:

L:In file included from  _125/usr/local/clang/include/absl/log/check.h1310L:: | O1437 G::
 _ In file included from  Iwarning: /usr/local/clang/include/absl/log/internal/check_impl.h Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:cT
21oE:
Rn  /usr/local/clang/include/absl/log/internal/check_op.hNs125t:A |   293Lc_ :hCS49taaH:ErCtKu *warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s RO
Pa_ebp  Is*293MlP  | _La n(b oCs nhl ne_ ucn lko l_n  Ln mEu s,l g l ,<   =C c)l o
o n      n s| e t^A  
n vdo/usr/local/clang/include/absl/log/internal/check_op.h Uin: dr488 *e : fa(32 b
s:       l  | _             ^note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
o 
n/usr/local/clang/include/absl/base/nullability.h   n:u 488 241 l | : l 22   : ci cnote: vexpanded from macro 'absl_nonnull'noln)
)isn;  
te 241       cc | | #ho                ^dan
er/usr/local/clang/include/absl/base/nullability.hsf*:ti 241ena:xeb22p s:ral  note: cb_expanded from macro 'absl_nonnull'osn
nlo  s_n241tnn |  ou#cnldhnleau)frl;i*l
n        ea_|  bN                                                ^aso
blnsn/usr/local/clang/include/absl/base/nullability.h_lnu:_ul241nll:
ol22a      n:b| n l                     ^unote: eexpanded from macro 'absl_nonnull'
l l
n a  _m241Ne | #o##ndIenmufpilln(lIn file included from e 
s2/s2max_distance_targets.cc  a      : b | 16                     ^s l:

 _ In file included from n o ../src/s2/s2max_distance_targets.hIn file included from n :s2/s2lax_polyline_shape.ccn u27: l l:
18   In file included from :
_ N../src/s2/s1angle.hIn file included from  o :../src/s2/s2lax_polyline_shape.hn n28:\u:
28
lIn file included from :
      l../src/s2/s2point.hIn file included from | 
                               ^:../src/s2/encoded_s2point_vector.h      
27:| :
                     ^29/usr/local/clang/include/absl/base/nullability.hIn file included from 
:
:../src/s2/s2coder.hIn file included from 257:../src/s2/s2coder.h:23:23:
23:In file included from :
 /usr/local/clang/include/absl/status/status.hIn file included from note: :/usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullable'67:
:
67:
/usr/local/clang/include/absl/status/internal/status_internal.h  In file included from In file included from :257s2/s2measures.cc/usr/local/clang/include/absl/status/internal/status_internal.h128 | :#::18d2914:
e:
:In file included from fIn file included from  ../src/s2/s2measures.hi/usr/local/clang/include/absl/strings/cord.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:24
e94:
   :
In file included from 128aIn file included from ../src/s2/s2point.h | b/usr/local/clang/include/absl/strings/internal/cordz_info.h: s:25 l31:
S_:
In file included from tn/usr/local/clang/include/absl/synchronization/mutex.h../src/s2/util/coding/coder.hau::tl131036ul::
sa47In file included from Rb:../src/s2/base/casts.hel :pewarning: 36* type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 _
In file included from aN../src/s2/base/logging.hu b:l1310ls21 | al:
 b_In file included from  ln/usr/local/clang/include/absl/log/check.h eo: 
n37c      n:
o| uIn file included from n                      ^l/usr/local/clang/include/absl/log/internal/check_impl.hs
l:t 21 C:
clh/usr/local/clang/include/absl/log/internal/check_op.hoa:In file included from nre*295s2/s2metrics.ccA n::adbU2031sn::
lr_e In file included from nfo../src/s2/s2metrics.hwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:)
n34 uc:
  loIn file included from 295ln../src/s2/s2coords.h |  cs:mot105sn;:
gs
In file included from ,t      ../src/s2/base/logging.h  | :cs             ^21oi
:
ngIn file included from /usr/local/clang/include/absl/base/nullability.hsn/usr/local/clang/include/absl/log/check.h:te:d241 37 :v:
c22oIn file included from h:i/usr/local/clang/include/absl/log/internal/check_impl.ha d:*rnote: 21 *expanded from macro 'absl_nonnull':
a 
/usr/local/clang/include/absl/log/internal/check_op.hba:b  s504s241l:l | _#1_ndo:nne nofwarning: unitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lnn
lue/usr/local/clang/include/absl/log/internal/check_op.h l :cla489v b:)os47)pl:;e_ 
note: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n      oa
| n                                              ^  tno
489ur | </usr/local/clang/include/absl/base/nullability.hl < :l( s241  t :_d 22cN::oo: nnbnnote: satuexpanded from macro 'absl_nonnull'ls i
lT
1c&        _ 241| ov |                      ^s1t,#
dr eecfaomin<sncteh  aTra2,&b  sTvlr_2a,ni otcsno>nn&su,tl
 l       c_| hN                   ^ao
rn*/usr/local/clang/include/absl/base/nullability.hn u:al241bl:s
22l      :_|  n                     ^note: oexpanded from macro 'absl_nonnull'
n
nu  l241l |  #edxepfritneex ta)b s{l _ n o n n\u
l      l|                                                ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonIn file included from ns2/s2measures.ccu:l18l:
 In file included from _../src/s2/s2measures.hN:o24n:
nIn file included from u../src/s2/s2point.hl:l25
:
      In file included from | ../src/s2/util/coding/coder.h                     ^:
36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2metrics.cc241: | 31#:
dIn file included from e../src/s2/s2metrics.hf:i34n:
eIn file included from  ../src/s2/s2coords.ha:b105s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l504
:      1| :                     ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlineIn file included from  s2/s2measures.ccc:o18n:
sIn file included from t../src/s2/s2measures.he:x24p:
rIn file included from  ../src/s2/s2point.hc:o25n:
sIn file included from t../src/s2/util/coding/coder.h :c36h:
aIn file included from r../src/s2/base/casts.h*: 36a:
bIn file included from s../src/s2/base/logging.hl:_21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :n21a:
m/usr/local/clang/include/absl/log/internal/check_op.he:#298#:I22m:p lwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       298  |  c o n s t   u n s i g n\e
d       | c                               ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l# doepfeirnaet oarb<s<l(_sntudl:l:abbalsei c__Nousltlraebalme<
c      h| a                      ^r
, Traits>In file included from &s2/s2metrics.cc,:
31      :
| In file included from                      ^../src/s2/s2metrics.h
:34:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coords.h241::10522:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e504 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u498l:l35 :_ Nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
nul  l498
 |        |                       ^ 
   int v1, int v2In file included from ,s2/s2measures.cc :c18o:
nIn file included from s../src/s2/s2measures.ht: 24c:
hIn file included from a../src/s2/s2point.hr:*25 :
aIn file included from b../src/s2/util/coding/coder.hs:l36_:
nIn file included from o../src/s2/base/casts.hn:n36u:
lIn file included from l../src/s2/base/logging.h :e21x:
pIn file included from r/usr/local/clang/include/absl/log/check.ht:e37x:
tIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h :{21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 299 : 67 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       299  | \ 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o ncnounlslt
       u| n                     ^s
igned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2metrics.cc/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
In file included from ../src/s2/s2metrics.h/usr/local/clang/include/absl/log/internal/check_op.h::34432:
:In file included from 13../src/s2/s2coords.h:: 105:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :43237 | co:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht: 21c:
h/usr/local/clang/include/absl/log/internal/check_op.ha:r505*: 1a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n505u | lAlB SMLa_kLeOCGh_eIcNkTOEpRSNtArLi_nCgH(ETC1K _vO1P,_ ITM2P Lv(2C,h
e      c| k            ^_
LT/usr/local/clang/include/absl/base/nullability.h,: 241<:)22
:       | note: ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/log/internal/check_op.h241: | 488#:d32e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 ab  s488l | _ n oinnnluilnle  _cNoonnsntuelxlp
r       | c                     ^o
nst char* abIn file included from ss2/s2measures.ccl:_18n:
uIn file included from l../src/s2/s2measures.hl:a24b:
lIn file included from e../src/s2/s2point.h :n25a:
mIn file included from e../src/s2/util/coding/coder.h#:#36I:
mIn file included from p../src/s2/base/casts.hl:(36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 433\:
56      :|                                 ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23  :433  | note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
 const char* abslIn file included from _s2/s2metrics.ccn:o31n:
nIn file included from u../src/s2/s2metrics.hl:l34 :
eIn file included from x../src/s2/s2coords.hp:r105t:
eIn file included from x../src/s2/base/logging.ht:)21 :
{In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                                       ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241/usr/local/clang/include/absl/log/internal/check_op.h::22505:: 1:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241/usr/local/clang/include/absl/log/internal/check_op.h | :#489d:e47f:i nnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
abs  l489_ | n o n n u l lc o_nNsotn nTu1l&l 
v      1| ,                     ^ 
const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2metrics.cc  :45131 | :
AIn file included from B../src/s2/s2metrics.hS:L34_:
LIn file included from O../src/s2/s2coords.hG:_105I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:D37E:
FIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:E21_:
M/usr/local/clang/include/absl/log/internal/check_op.hA:K505E:_1C:H Ewarning: Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]K
_O/usr/local/clang/include/absl/log/internal/check_op.hP:_497S:T32R:I Nnote: Gexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
EX  T497E | R N (ibnoloiln)e constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: ;note: 
expanded from macro 'absl_nullable'      
| ^  
257 | #d/usr/local/clang/include/absl/log/internal/check_op.he:f449i:n31e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_nu  l449l | a b leex t_eNrunl ltaebmlpel
a      t| e                      ^ 
const char* In file included from as2/s2metrics.ccb:s31l:
_In file included from n../src/s2/s2metrics.ho:n34n:
uIn file included from l../src/s2/s2coords.hl: 105M:
aIn file included from k../src/s2/base/logging.he:C21h:
eIn file included from c/usr/local/clang/include/absl/log/check.hk:O37p:
SIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hr:i21n:
g/usr/local/clang/include/absl/log/internal/check_op.h(: 505 : 1\:
       | warning:                               ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241498::2235::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  241 |   #498d | e f i n e   aibnstl _vn1o,n niunltl  v_2N,o ncnounlslt
       c| h                     ^a
r* absl_noIn file included from ns2/s2measures.ccn:u18l:
lIn file included from  ../src/s2/s2measures.he:x24p:
rIn file included from t../src/s2/s2point.he:x25t:
)In file included from  ../src/s2/util/coding/coder.h{: 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
\In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                  ^:

/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h451::2411::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/log/internal/check_op.h  :241450 | :#25d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e   a450b | s l _ n o n nxu,l lx ,_ Ncoonnnsutl lc
h      a| r                     ^*
 absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_In file included from ns2/s2lax_polyline_shape.cco:n18n:
uIn file included from l../src/s2/s2lax_polyline_shape.hl: 28M:
aIn file included from k../src/s2/encoded_s2point_vector.he:C29h:
eIn file included from c../src/s2/s2coder.hk:O23p:
SIn file included from t/usr/local/clang/include/absl/status/status.hr:i67n:
gIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
\
      /usr/local/clang/include/absl/strings/cord.h| :                              ^109
:53/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
    241109 |  | #vdoeifdi nCeo paybCsolr_dnToonSnturliln g_(Ncoonnnsutl lC
o      r| d                     ^&
 src, std:In file included from :s2/s2measures.ccs:t18r:
iIn file included from n../src/s2/s2measures.hg:*24 :
aIn file included from b../src/s2/s2point.hs:l25_:
nIn file included from o../src/s2/util/coding/coder.hn:n36:
uIn file included from l../src/s2/base/casts.hl: 36d:
sIn file included from t../src/s2/base/logging.h):;21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                                    ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/check_op.h241::45322::1 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  /usr/local/clang/include/absl/log/internal/check_op.h241: | 450#:d25e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
 a  b450s | l _ n o n n uxl,l  x_,N ocnonnusltl 
c      h| a                     ^r
* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2lax_polyline_shape.ccf:i18n:
eIn file included from  ../src/s2/s2lax_polyline_shape.ha:b28s:
lIn file included from _../src/s2/encoded_s2point_vector.hn:o29n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| /usr/local/clang/include/absl/strings/cord.h                     ^:
110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToStriIn file included from ns2/s2measures.ccg:(18c:
oIn file included from n../src/s2/s2measures.hs:t24 :
CIn file included from o../src/s2/s2point.hr:d25&:
 In file included from s../src/s2/util/coding/coder.hr:c36,:
 In file included from s../src/s2/base/casts.ht:d36::
:In file included from s../src/s2/base/logging.ht:r21i:
nIn file included from g/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n454u:l1l:  dwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
);
        454|  |                                                       ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241L:O22G:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dDeEfFiInNeE _aMbAsKlE__nCoHnEnCuKl_lO P__NSoTnRnIuNlGl_
E      X| T                     ^E
RN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2metrics.ccn:o31n:
nIn file included from u../src/s2/s2metrics.hl:l34 :
_In file included from N../src/s2/s2coords.ho:n105n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOGIn file included from _s2/s2measures.ccI:N18T:
EIn file included from R../src/s2/s2measures.hN:A24L:
_In file included from C../src/s2/s2point.hH:E25C:
KIn file included from _../src/s2/util/coding/coder.hO:P36_:
IIn file included from M../src/s2/base/casts.hP:L36(:
CIn file included from h../src/s2/base/logging.he:c21k:
_In file included from G/usr/local/clang/include/absl/log/check.hE:,37 :
>In file included from =/usr/local/clang/include/absl/log/internal/check_impl.h):
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h^:
455:1:/usr/local/clang/include/absl/log/internal/check_op.h :488warning: :32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'  
455 | AB  S488L | _ L OiGn_lIiNnTeE RcNoAnLs_tDeExFpIrN Ec_oMnAsKtE _cChHaErC*K _aObPs_lS_TnRuIlNlGa_bElXeT EnRaNm(ed#o#uIbmlpel)(; 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449 : 31 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     \449
 |        |                                 ^e
xte/usr/local/clang/include/absl/base/nullability.hr:n257 :t23e:m pnote: lexpanded from macro 'absl_nullable'a
te   257c | o#ndsetf icnhea ra*b salb_snlu_lnloanbnluel l_ NMualkleaCbhleec
k      O| p                      ^S
tring(   \
      | In file included from                               ^s2/s2metrics.cc
:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2metrics.h241::3422:
:In file included from  ../src/s2/s2coords.h:note: 105expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/logging.h:  21241:
 | In file included from #/usr/local/clang/include/absl/log/check.hd:e37f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l506_:n1o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l /usr/local/clang/include/absl/log/internal/check_op.h_In file included from :Ns2/s2lax_polyline_shape.cc489o::n1847n:
:uIn file included from  l../src/s2/s2lax_polyline_shape.hnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

28      :
| In file included from                        ^../src/s2/encoded_s2point_vector.h489
: | 29 :
 In file included from In file included from  ../src/s2/s2coder.hs2/s2measures.cc :: 2318 :
:
cIn file included from In file included from o/usr/local/clang/include/absl/status/status.h../src/s2/s2measures.hn::s6724t:
:
 In file included from In file included from T/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.h1::&2925 :
:
v/usr/local/clang/include/absl/strings/cord.hIn file included from 1:../src/s2/util/coding/coder.h,425: :36c62:
o:In file included from n ../src/s2/base/casts.hs:twarning: 36 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
T
In file included from 2../src/s2/base/logging.h&: 21v  :
2425In file included from , | /usr/local/clang/include/absl/log/check.h  :c 37of:
nrIn file included from si/usr/local/clang/include/absl/log/internal/check_impl.hte: n21cd:
h/usr/local/clang/include/absl/log/internal/check_op.h a:vr455o*:i 1da :bC sowarning: pltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y_
Cno/usr/local/clang/include/absl/log/internal/check_op.hro:nd450nT:uo25lS:lt reixnpgr(tceoxnts)t  {C o r d &  \s
r      c| ,                                              ^ 
st/usr/local/clang/include/absl/base/nullability.hd::241::s22t:r inote: nexpanded from macro 'absl_nonnull'g
*   a241b | s#ld_enfoinnneu lalb sdls_tn)o;n
n      u| l                                                             ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #de fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e ab  s450l | _ n o n n u lxl,  _xN,o ncnounlslt
       c| h                     ^a
r* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2lax_polyline_shape.cc
:18  :
241In file included from  | ../src/s2/s2lax_polyline_shape.h#:d28e:
fIn file included from i../src/s2/encoded_s2point_vector.hn:e29 :
aIn file included from b../src/s2/s2coder.hs:l23_:
In file included from nIn file included from s2/s2metrics.cco/usr/local/clang/include/absl/status/status.h:n:31n67:
u:
In file included from lIn file included from ../src/s2/s2metrics.hl/usr/local/clang/include/absl/status/internal/status_internal.h: :34_29:
N:
In file included from o/usr/local/clang/include/absl/strings/cord.h../src/s2/s2coords.hn::n437105u::
l47In file included from l:../src/s2/base/logging.h
 :      21warning: | :
                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 

/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h437: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 506 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.hIn file included from  :s2/s2measures.cc 497 :: 1832 :
: In file included from   note:  ../src/s2/s2measures.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' : 
24 :
 In file included from    ../src/s2/s2point.h 497:  | 25  :
  In file included from  i../src/s2/util/coding/coder.h n:l 36is:
ntIn file included from ed../src/s2/base/casts.h ::c:36os:
ntIn file included from sr../src/s2/base/logging.hti:en21xg:
p*In file included from r /usr/local/clang/include/absl/log/check.h a:cb37os:
nlIn file included from s_/usr/local/clang/include/absl/log/internal/check_impl.htn: o21cn:
n/usr/local/clang/include/absl/log/internal/check_op.hhu:la456lr: *1d :as btwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])l
_;n
  u      456l|  | lA                                              ^aBb
SlLe_/usr/local/clang/include/absl/base/nullability.h LnO:aGm241_eI:#N#22TIE:mRp NlAnote: (expanded from macro 'absl_nonnull'L 
_ D   E 241F  | I# Nd E e_ fM iA Kn Ee _  Ca Hb Es C lK __\On
Po      _n| SnTu                               ^Rl
IlN /usr/local/clang/include/absl/base/nullability.hG:257_:E23X:T Enote: Rexpanded from macro 'absl_nullable'N
(c  h257a | r#)d;e
f      i| n^e
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s449l:_31n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
ble   449_ | N u lelxatbelren
       t| e                      ^m
plate consIn file included from ts2/s2metrics.cc :c31h:
aIn file included from r../src/s2/s2metrics.h*: 34a:
bIn file included from s../src/s2/s2coords.hl:_105n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hM:a37k:
eIn file included from C/usr/local/clang/include/absl/log/internal/check_impl.hh:e21c:
k/usr/local/clang/include/absl/log/internal/check_op.hO:p506S:t1r:i nwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
  /usr/local/clang/include/absl/log/internal/check_op.h :\498
:      35| :                              ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/base/nullability.h
:241:22:   498 | note:  expanded from macro 'absl_nonnull' 
     241  | i#ndte fvi1n,e  ianbts lv_2n,o ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
onnull eIn file included from xs2/s2measures.ccp:r18t:
eIn file included from x../src/s2/s2measures.ht:)24 :
{In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h :\21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                  ^:
37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22/usr/local/clang/include/absl/log/internal/check_op.h:: 456:note: 1expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #d/usr/local/clang/include/absl/log/internal/check_op.he:f450i:n25e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_  n450o | n n u l l   _xN,o nxn,u lclo
n      s| t                     ^ 
char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(c_oNnosntn uclhla
r      *|  absl_non                     ^n
ull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   exterIn file included from ns2/s2metrics.cc :t31e:
mIn file included from p../src/s2/s2metrics.hl:a34t:
eIn file included from  ../src/s2/s2coords.hc:o105n:
sIn file included from t../src/s2/base/logging.h :c21h:
aIn file included from r/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n507u:l1l:  Mwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]k
eChe  c507k | OApBSStLr_iLnOgG(_ I N T\E
R      N| A                              ^L
_C/usr/local/clang/include/absl/base/nullability.hH:E241C:K22_:O Pnote: _expanded from macro 'absl_nonnull'I
MP  L241( | C#hdeecfki_nGeT ,a b>s)l
_      n| o^n
nul/usr/local/clang/include/absl/log/internal/check_op.hl: 488_:N32o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l
      |                        ^488
 |   inIn file included from ls2/s2measures.cci:n18e:
 In file included from c../src/s2/s2measures.ho:n24s:
tIn file included from e../src/s2/s2point.hx:p25r:
 In file included from c../src/s2/util/coding/coder.ho:n36s:
tIn file included from  ../src/s2/base/casts.hc:h36a:
In file included from rIn file included from s2/s2max_distance_targets.cc*../src/s2/base/logging.h ::a1621b:
:
sIn file included from In file included from l../src/s2/s2max_distance_targets.h/usr/local/clang/include/absl/log/check.h_::n2737u:
:
lIn file included from In file included from l../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_impl.ha::b2821l:
:
e/usr/local/clang/include/absl/log/internal/check_op.hIn file included from  :../src/s2/s2point.hn460a::m2766e:
:#In file included from  #../src/s2/s2coder.hwarning: I:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m23
p:
lIn file included from   (/usr/local/clang/include/absl/status/status.h460 : |  67A B:
 S/usr/local/clang/include/absl/status/internal/status_internal.h L: _ 149L O: G13 _ :I N  Twarning:  Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] R
 N A L   _\D149
E |       cFo| In                               ^Ns
Et_/usr/local/clang/include/absl/base/nullability.h Mc:Ah257Ka:Er23_*:C  anote: Hexpanded from macro 'absl_nullable'bE
sCl  K_257_n | O#oPdn_eSnfuTliRnlIe N GMa_baEskXlTe_CEnhRuNel(lccakobFnalseit l _SctNrhualirl*na gbIn file included from a(ls2/s2lax_polyline_shape.ccb
e:s      
18l|       :
_            ^| In file included from n
                      ^../src/s2/s2lax_polyline_shape.ho
n/usr/local/clang/include/absl/base/nullability.h:n:28u241:
l:In file included from l22../src/s2/encoded_s2point_vector.hIn file included from )::s2/s2metrics.cc; 29:
note: :
31      expanded from macro 'absl_nonnull'In file included from :
| 
                                                                 ^../src/s2/s2coder.hIn file included from 
  :../src/s2/s2metrics.h24123/usr/local/clang/include/absl/base/nullability.h: | :
#:34In file included from d241:
/usr/local/clang/include/absl/status/status.he:In file included from :f22i../src/s2/s2coords.h67:n::
 e105In file included from note:  expanded from macro 'absl_nonnull'a:
/usr/local/clang/include/absl/status/internal/status_internal.h
bIn file included from :  s../src/s2/base/logging.h29241l::
 | _21/usr/local/clang/include/absl/strings/cord.h#n:
:doIn file included from 480en/usr/local/clang/include/absl/log/check.h:fn:39iu37:nl:
 elIn file included from warning:   /usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a_:
bN21osn:
  ln/usr/local/clang/include/absl/log/internal/check_op.h480_u: | nl507 ol: n
1 n      : u|  ul                     ^warning: sl
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i n
_gN/usr/local/clang/include/absl/log/internal/check_op.h op:no489ni:In file included from un47s2/s2max_distance_targets.cclt::le 16note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'r:
       
In file included from =| ../src/s2/s2max_distance_targets.h                      ^  :c
48927o | :
n In file included from  sIn file included from ../src/s2/s1angle.h ts2/s2measures.cc:  :28 v18:
 a:
In file included from clIn file included from ../src/s2/s2point.hou../src/s2/s2measures.h:ne:27s_24:
tt:
In file included from  yIn file included from ../src/s2/s2coder.hTp../src/s2/s2point.h:1e:23&*25:
  :
In file included from vaIn file included from /usr/local/clang/include/absl/status/status.h1b../src/s2/util/coding/coder.h:,s:67 l36:
c_:
/usr/local/clang/include/absl/status/internal/status_internal.honIn file included from :no../src/s2/base/casts.h150sn::tn3625 u:
:TlIn file included from  2warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h&;
: 
21  v      :
1502| In file included from  | ,                                      ^/usr/local/clang/include/absl/log/check.h  
: c 37o :
ncIn file included from so/usr/local/clang/include/absl/log/internal/check_impl.htn: s21ct:
h/usr/local/clang/include/absl/log/internal/check_op.h a:ar460*b/usr/local/clang/include/absl/base/nullability.h: s:l66:a241::b: Swarning: ts22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]al:
t/usr/local/clang/include/absl/base/nullability.hu_ :note: sexpanded from macro 'absl_nonnull'n241o*
 :anb22  ns:241ul  | note: l_#nexpanded from macro 'absl_nonnull'ldo
n   ene241xfu | p#ilrdtnleee  sfxiattnba)e stl {au_s bn, s o nl _cnou n\nlso
lt n       _nN| cuo                                              ^hln
al/usr/local/clang/include/absl/base/nullability.hnru :_*l l241Na
b:o      s22n| l                     ^:n_
n uonote: lexpanded from macro 'absl_nonnull'nl
n
  u      241l| l |                       ^#p
dreeffIn file included from iis2/s2measures.ccnx:e)18 ;:

aIn file included from b      ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2lax_polyline_shape.ccn:u18l:
lIn file included from 
../src/s2/s2lax_polyline_shape.h      :| 28                     ^:

In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |   In file included from  s2/s2measures.cc :e18x:
pIn file included from l../src/s2/s2measures.hi:c24i:
tIn file included from  ../src/s2/s2point.hC:h25u:
nIn file included from k../src/s2/util/coding/coder.hI:t36e:
rIn file included from ../src/s2/base/casts.ha:t36:
oIn file included from r../src/s2/base/logging.h(:c21o:
rIn file included from d/usr/local/clang/include/absl/log/check.h_:i37n:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:n21a:
l/usr/local/clang/include/absl/log/internal/check_op.h::461::C1o:r dwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
p*   a461b | sAlB_SnLo_nLnOuGl_lI NtTrEeReN)A;L
_      D| E                                                   ^F
IN/usr/local/clang/include/absl/base/nullability.hE:_241M:A22K:E _note: Cexpanded from macro 'absl_nonnull'H
ECK  _241O | P#_dSeTfRiInNeG _aEbXsTlE_RnNo(n
n      u| l^l
 _/usr/local/clang/include/absl/log/internal/check_op.hN:449o:n31n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

      |                      ^  
449 |   extern template const char* absIn file included from ls2/s2lax_polyline_shape.cc_:n18o:
nIn file included from n../src/s2/s2lax_polyline_shape.hu:l28l:
 In file included from M../src/s2/encoded_s2point_vector.ha:k29e:
CIn file included from h../src/s2/s2coder.he:c23k:
OIn file included from p/usr/local/clang/include/absl/status/status.hS:t67r:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hg:(29 :
 /usr/local/clang/include/absl/strings/cord.h :\504
:      40| :                              ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:  22504: |   note:  expanded from macro 'absl_nonnull' 
 e  x241p | l#idceifti nCeh uanbksIlt_enroantnourl(lc o_nNsotn nCuolrld
*       | a                     ^b
sl_noIn file included from ns2/s2measures.ccn:u18l:
lIn file included from  ../src/s2/s2measures.hc:24o:
rIn file included from d../src/s2/s2point.h):;25
:
      In file included from | ../src/s2/util/coding/coder.h                                       ^:
36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/casts.h::24136::
22In file included from :../src/s2/base/logging.h :21note: :
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull e| xprt                        ^e
xt) /usr/local/clang/include/absl/base/nullability.h{: 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
      241  |  # d e f\i
n      e|                                    ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2measures.ccd:e18f:
iIn file included from n../src/s2/s2measures.he: 24a:
bIn file included from s../src/s2/s2point.hl:_25n:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from  ../src/s2/base/casts.h_:N36o:
nIn file included from n../src/s2/base/logging.hu:l21:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(In file included from 
s2/s2lax_polyline_shape.cc      :| 18^:

In file included from ../src/s2/s2lax_polyline_shape.h:/usr/local/clang/include/absl/log/internal/check_op.h28::
449In file included from :../src/s2/encoded_s2point_vector.h31::29 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'../src/s2/s2coder.h
:23:
In file included from   /usr/local/clang/include/absl/status/status.h449: | 67 :
 In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:t29e:
r/usr/local/clang/include/absl/strings/cord.hn: 507t:e43m:p lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
e co  n507s | t   c h avro*i da bIsnli_tnTorneneu(lclo rMda_kienCtheercnkaOlp:S:tCroirndgR(e p *  \a
b      s| l                              ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  tnote: rexpanded from macro 'absl_nonnull'e
e)  ;241
 |       #| d                                          ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnulIn file included from ls2/s2measures.cc :_18N:
oIn file included from n../src/s2/s2measures.hn:u24l:
lIn file included from 
      |                      ^
../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:In file included from 25s2/s2lax_polyline_shape.cc:
:In file included from 18../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/s2lax_polyline_shape.h:
:In file included from 28../src/s2/base/casts.h:
:In file included from 36../src/s2/encoded_s2point_vector.h:
:In file included from 29../src/s2/base/logging.h:
:In file included from 21../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/log/internal/check_op.h29::
464/usr/local/clang/include/absl/strings/cord.h::26525:: 35warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:   note: 525expanded from macro 'absl_nonnull' | 
     241  | a#bdself:i:nceo radb_siln_tneornnnaull:l: C_oNrodnRneupl*l 
a      b| s                     ^l
_nullIn file included from as2/s2measures.ccb:le current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2metrics.cc582: | 31 :
 In file included from  ../src/s2/s2metrics.h :e34x:
pIn file included from l../src/s2/s2coords.hi:c105i:
tIn file included from  ../src/s2/base/logging.hC:h21u:
nIn file included from k/usr/local/clang/include/absl/log/check.hR:a37n:
gIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h(:c21o:
ns/usr/local/clang/include/absl/log/internal/check_op.ht: 511C:o13rd18*:
 In file included from a../src/s2/s2measures.hb:s24l:
_In file included from n../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl: 36c:
oIn file included from r../src/s2/base/casts.hd:)36 :
:In file included from  ../src/s2/base/logging.hc:o21r:
dIn file included from _/usr/local/clang/include/absl/log/check.h(:c37o:
rIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h): 21{:
}/usr/local/clang/include/absl/log/internal/check_op.h
:      463| :                                    ^1
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   note: 463expanded from macro 'absl_nonnull' | 
AB  S241L | _#LdOeGf_iInNeT EaRbNsAlL__nDoEnFnIuNlEl_ M_ANKoEn_nCuHlElC
K      _| O                     ^P
_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const cIn file included from hs2/s2lax_polyline_shape.cca:r18*:
 In file included from a../src/s2/s2lax_polyline_shape.hb:s28l:
_In file included from n../src/s2/encoded_s2point_vector.ho:n29n:
uIn file included from l../src/s2/s2coder.hl:)23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                        ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22/usr/local/clang/include/absl/strings/cord.h:: 588note: :expanded from macro 'absl_nonnull'17
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de  f588i | n e   a bcsoln_snto nCnourldl*  _aNbosnln_unloln
n      u| l                     ^l
 cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2measures.cc_:N18o:
nIn file included from n../src/s2/s2measures.hu:l24l:

In file included from       ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const voIn file included from is2/s2lax_polyline_shape.ccd:*18 :
aIn file included from b../src/s2/s2lax_polyline_shape.hs:l28_:
nIn file included from o../src/s2/encoded_s2point_vector.hn:n29u:
lIn file included from l../src/s2/s2coder.h):;23
:
      In file included from | /usr/local/clang/include/absl/status/status.h^:
67:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.h::44929::
31/usr/local/clang/include/absl/strings/cord.h:: 641note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'33
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]449
 |     e641x | t e r n  utseimnpgl aptoei nctoenrs t=  cchoanrs*t  acbhsalr_*n oanbnsull_ln oMnankuelClh;e
c      k| O                                ^p
St/usr/local/clang/include/absl/base/nullability.hr:i241n:g22(:   note:  expanded from macro 'absl_nonnull'\

        | 241                              ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* abslIn file included from _s2/s2lax_polyline_shape.ccn:o18n:
nIn file included from u../src/s2/s2lax_polyline_shape.hl:l28):
;In file included from 
../src/s2/encoded_s2point_vector.h      :| 29                                                                 ^:

In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | /usr/local/clang/include/absl/strings/cord.h#:d655e:f39i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _655n | o n n u lelx p_lNiocnintu lClh
a      r| I                     ^t
erator(In file included from cs2/s2measures.cco:n18s:
tIn file included from  ../src/s2/s2measures.hC:o24r:
dIn file included from *../src/s2/s2point.h :a25b:
sIn file included from l../src/s2/util/coding/coder.h_:n36o:
nIn file included from n../src/s2/base/casts.hu:l36l:
 In file included from c../src/s2/base/logging.ho:r21d:
)In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                      ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241/usr/local/clang/include/absl/log/internal/check_op.h::22465:: 66note: :expanded from macro 'absl_nonnull' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_In file included from Ds2/s2lax_polyline_shape.ccE:F18I:
NIn file included from E_../src/s2/s2lax_polyline_shape.hM:A28K:
EIn file included from _../src/s2/encoded_s2point_vector.hC:H29E:
CIn file included from K../src/s2/s2coder.h_:O23P:
_In file included from S/usr/local/clang/include/absl/status/status.hT:R67I:
NIn file included from G/usr/local/clang/include/absl/status/internal/status_internal.h_:E29X:
T/usr/local/clang/include/absl/strings/cord.hE:R667N:(44c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 voi  d667* |   a bsstla_tniocn nCuolrld) ;A
d      v| a^n
ce/usr/local/clang/include/absl/log/internal/check_op.hA:n450d:R25e:a dnote: (expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'C
ha  r450I | t e r a t o rx*,  axb,s lc_onnosntn uclhla ri*t ,a bssilz_en_otnnull )n
_      b| y                        ^t
es/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                                           ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2measures.cc  :72518 | :
 In file included from  ../src/s2/s2measures.hs:t24a:
tIn file included from i../src/s2/s2point.hc: 25s:
tIn file included from a../src/s2/util/coding/coder.ht:u36s:
_In file included from i../src/s2/base/casts.hn:t36:
eIn file included from r../src/s2/base/logging.hn:a21l:
:In file included from :/usr/local/clang/include/absl/log/check.h:S37t:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hu:s21R:
e/usr/local/clang/include/absl/log/internal/check_op.hp:*502 :a1b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u497l:l32 :P rnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'p
are  T497o | M o diinflyi(n
e       | c                                     ^o
nste/usr/local/clang/include/absl/base/nullability.hx:p241r: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naublslla_bnloen nnualmle #_#NIomnpnlu(l l 
        |                       ^ 
             \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullableIn file included from  s2/s2max_distance_targets.cc_:N16u:
lIn file included from l../src/s2/s2max_distance_targets.ha:b27l:
eIn file included from 
../src/s2/s1angle.h      :| 28                      ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.hIn file included from :s2/s2measures.cc732::1829:
:In file included from  ../src/s2/s2measures.h:warning: 24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:25:
  In file included from 732../src/s2/util/coding/coder.h | : 36 :
sIn file included from t../src/s2/base/casts.h:a36t:
iIn file included from c../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37s:
tIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h::21::
s/usr/local/clang/include/absl/log/internal/check_op.ht:r502i:n1g:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
s/usr/local/clang/include/absl/log/internal/check_op.hl:_498n:o35n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
 Em  p498t | y S t r i n gi(n)t; 
v      1| ,                            ^ 
in/usr/local/clang/include/absl/base/nullability.ht: 241v:222,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsoln_nnuolnln uelxlp r_tNeoxntn)u l{l 
        |                       ^ 
            \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2max_distance_targets.cc:: 16note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2max_distance_targets.h  :24127 | :
#In file included from d../src/s2/s1angle.he:f28i:
nIn file included from e../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
n/usr/local/clang/include/absl/status/status.hn:u733l:l29 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l733
 |       |                       ^ 
static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:e abs:l_ nowarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull _  N511o | ncnounlslt
       c| h                     ^a
r* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2/s2lax_polyline_shape.cc:18  :
257In file included from  | ../src/s2/s2lax_polyline_shape.h#:d28e:
fIn file included from i../src/s2/encoded_s2point_vector.hn:e29 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29_:
N/usr/local/clang/include/absl/strings/cord.hu:l674l:a37b:l ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^
  674 |   static void AdvanIn file included from cs2/s2metrics.cce:(31C:
hIn file included from a../src/s2/s2metrics.hr:I34t:
eIn file included from r../src/s2/s2coords.ha:t105o:
rIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 /usr/local/clang/include/absl/log/internal/check_op.hi:t512,: 17s:i zwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
t n  _512b | y t e s )c;o
n      s| t                                    ^ 
cha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee fsi1n,e  caobnsslt_ ncohnanru*l la b_sNlo_nnnuulllla
b      l| e                     ^ 
s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nulIn file included from ls2/s2lax_polyline_shape.cca:b18l:
eIn file included from  ../src/s2/s2lax_polyline_shape.hs:228,:

In file included from       ../src/s2/encoded_s2point_vector.h| :                                              ^29
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23257:
:In file included from 23/usr/local/clang/include/absl/status/status.h:: 67note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:  29257:
 | /usr/local/clang/include/absl/strings/cord.h#:d730e:f36i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n730u | l l a b leex p_lNiuclilta bClhea
r      R| a                      ^n
ge(const In file included from Cs2/s2metrics.cco:r31d:
*In file included from  ../src/s2/s2metrics.ha:b34s:
lIn file included from _../src/s2/s2coords.hn:o105n:
nIn file included from u../src/s2/base/logging.hl:l21 :
cIn file included from o/usr/local/clang/include/absl/log/check.hr:d37):
 In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
r/usr/local/clang/include/absl/log/internal/check_op.hd:_513(:c17o:r dwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{}  
513       | |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  cnote: hexpanded from macro 'absl_nonnull'a
r*   241a | b#sdle_fnionnen ualbls le_xnporntneuxltl) ;_
N      o| n                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2metrics.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h31::
29In file included from :
../src/s2/s2metrics.h/usr/local/clang/include/absl/strings/cord.h::34736:
:In file included from 17../src/s2/s2coords.h:: 105:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from   /usr/local/clang/include/absl/log/check.h736: | 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t514 :C13o:r dwarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l514_ | ncoonnnsutl lc hcaorr*d _a;b
s      l| _                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  Cnote: hexpanded from macro 'absl_nonnull'e
ck  s241t | r#cdmepffianles eaIbmspll_(n
o      n| n            ^u
ll/usr/local/clang/include/absl/base/nullability.h :_257N:o23n:n unote: lexpanded from macro 'absl_nullable'l

      |                        ^257
 | #define absl_nullable 241_:N22u:l lnote: aexpanded from macro 'absl_nonnull'b
le
        241|  |                       ^#
defineIn file included from  s2/s2metrics.cca:b31s:
lIn file included from _../src/s2/s2metrics.hn:o34n:
nIn file included from u../src/s2/s2coords.hl:l105 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char*In file included from  s2/s2max_distance_targets.cca:b16s:
lIn file included from _../src/s2/s2max_distance_targets.hn:u27l:
lIn file included from a../src/s2/s1angle.hb:l28e:
 In file included from s../src/s2/s2point.h1:,27 :
cIn file included from o../src/s2/s2coder.hn:s23t:
 /usr/local/clang/include/absl/status/status.hc:h752a:r44*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  u752l | l a bsltea tsi2c, 
c      o| n                ^s
t /usr/local/clang/include/absl/base/nullability.hs:t257a:t23u:s _note: iexpanded from macro 'absl_nullable'n
te  r257n | a#ld:e:fSitnaet uasbRselp_*n ualblsalb_lneo n_nNuullll aRbelpeT
o      P| o                      ^i
nter(
      | In file included from                                            ^s2/s2metrics.cc
:31:
In file included from ../src/s2/s2metrics.h:34:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coords.h241::10522:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 515a:b47s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l515l |   _ N o ncnounlslt
       c| h                     ^a
r* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37In file included from :
s2/s2lax_polyline_shape.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h18::
21In file included from :
../src/s2/s2lax_polyline_shape.h:/usr/local/clang/include/absl/log/internal/check_op.h28::
517In file included from :../src/s2/encoded_s2point_vector.h13::29 :
In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h517: | 29c:
on/usr/local/clang/include/absl/strings/cord.hs:t795 :c43h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl_  n795u | l l afbrliee nCdh evcokisdt rAcbassleFcomrpmtartuFelIumsphl((a
b      s| l            ^:
:Cor/usr/local/clang/include/absl/base/nullability.hd:*257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld ecfoirnde, 
a      b| s                                          ^l
_nul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  _note: Nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed
e      f| i                      ^n
e absl_nonnulIn file included from ls2/s2metrics.cc :_31N:
oIn file included from n../src/s2/s2metrics.hn:u34l:
lIn file included from 
../src/s2/s2coords.h      :| 105                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTreIn file included from e(s2/s2measures.ccC:o18r:
dIn file included from R../src/s2/s2measures.he:p24*:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 36t:
rIn file included from e../src/s2/base/logging.he:,21 :
MIn file included from e/usr/local/clang/include/absl/log/check.ht:h37o:
dIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hd:e21n:
tif/usr/local/clang/include/absl/log/internal/check_op.hi:e504r: 1m:e twarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
d);
      |                                    ^  
504 | /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:L Onote: Gexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iCnHeE CaKb_sOlP__IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2measures.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2measures.h/usr/local/clang/include/absl/status/internal/status_internal.h::2429:
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::251049:
:In file included from 56../src/s2/util/coding/coder.h:: 36warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21 :
1049In file included from  | /usr/local/clang/include/absl/log/check.h : 37s:
tIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.ht:i21c:
 bo/usr/local/clang/include/absl/log/internal/check_op.ho:l505 :G1e:t Fwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
tAux(  a505b | sAlB:S:Lc_oLrOdG__iInNtTeErRnNaAlL:_:CCHoErCdKR_eOpP*_ IaMbPsLl(_Cnhoencnku_lLlT ,r e<p),

            | | ^                                                       ^

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::488241::3222::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'absl_nonnull'

    241488 |  | # d eifnilnien ea bcsoln_sntoenxnpurl lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullable name##Impl(  In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 28 :
 In file included from  ../src/s2/encoded_s2point_vector.h : 29 :
 In file included from  ../src/s2/s2coder.h :\23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                               ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29257:
:23/usr/local/clang/include/absl/strings/cord.h:: 1050note: :expanded from macro 'absl_nullable'45
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def i1050n | e   a b s l _ n u l l a b l e   _ N u l l a b l e 
a      b| s                      ^l
::string_view* aIn file included from bs2/s2measures.ccs:l18_:
nIn file included from o../src/s2/s2measures.hn:n24u:
lIn file included from l../src/s2/s2point.h :f25r:
aIn file included from g../src/s2/util/coding/coder.hm:e36n:
tIn file included from )../src/s2/base/casts.h;:
36      :
| In file included from                                             ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h241::3722:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nonnull'21
:
/usr/local/clang/include/absl/log/internal/check_op.h  :241505 | :#1d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e /usr/local/clang/include/absl/log/internal/check_op.ha:b489s:l47_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
ull   489_ | N o n n u l lc
o      n| s                     ^t
 T1& v1, const T2& v2, const char* absl_nonnull exprtextIn file included from )s2/s2lax_polyline_shape.cc :{18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 28\:

In file included from       ../src/s2/encoded_s2point_vector.h| :                                              ^29
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e1054f:i37n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_ n1054o | n n u l l   _aNbonsnlu:l:lc
o      r| d                     ^_
internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2measures.ccs2/s2lax_polyline_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2measures.h../src/s2/s2lax_polyline_shape.h::2428:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/encoded_s2point_vector.h::2529:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/status/status.h::3667:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::106137::
34In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:505:1:  1061warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 v/usr/local/clang/include/absl/log/internal/check_op.ho:i497d: 32C:o pnote: yexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'T
oArr  a497y | S l oiwnPlaitnhe( cchoanrs*t eaxbpsrl _cnoonnsntu lclh adrs*t )a bcsoln_sntu;l
l      a| b                                 ^l
e /usr/local/clang/include/absl/base/nullability.hn:a241m:e22#:# Inote: mexpanded from macro 'absl_nonnull'p
l(   241  |  # d e f i n e   a b s l _ n o n n\u
l      l|                                 ^_
No/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:
       note: | expanded from macro 'absl_nullable'                     ^

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2lax_polyline_shape.ccl:_18n:
oIn file included from n../src/s2/s2lax_polyline_shape.hn:u28l:
lIn file included from  ../src/s2/encoded_s2point_vector.h_:N29o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                     ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2lax_polyline_shape.cc22::18 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2lax_polyline_shape.h
:28  :
241In file included from  | ../src/s2/encoded_s2point_vector.h#:d29e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
ll/usr/local/clang/include/absl/strings/cord.h :_1140N:o49n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
 1140 |                 In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.h : 24 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from C../src/s2/util/coding/coder.ho:r36d:
RIn file included from e../src/s2/base/casts.hp:E36x:
tIn file included from e../src/s2/base/logging.hr:n21a:
lIn file included from */usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u514l:l13 :r ewarning: ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
;
        | 514                                                ^ | 
const/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  Cahbesclk_sntorncnmuplfla l_sNeoInmnpull(l

            | |             ^                     ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullableIn file included from 
s2/s2lax_polyline_shape.cc      :| 18                      ^:

In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from In file included from ../src/s2/encoded_s2point_vector.hs2/s2measures.cc::2918:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2measures.h::2324:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6725:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/util/coding/coder.h::2936:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/base/casts.h1146::3610:
:In file included from  ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h: 371146:
 | In file included from C/usr/local/clang/include/absl/log/internal/check_impl.ho:r21d:
R/usr/local/clang/include/absl/log/internal/check_op.he:p515*: 17a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n515u | l l   N ecwoEnxstte rcnhaalrR*e pa(basbls_ln:u:lsltarbilneg _sv1i,e wc odnastta ,c
h      a| r         ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241  | s#2d,e
f      i| n                ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257_ | N#odnenfuilnle
       a| b                     ^s
l_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from In file included from s2/s2lax_polyline_shape.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2lax_polyline_shape.h/usr/local/clang/include/absl/log/check.h::2837:
:
In file included from In file included from ../src/s2/encoded_s2point_vector.h/usr/local/clang/include/absl/log/internal/check_impl.h::2921:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2coder.h::51623::
17In file included from :/usr/local/clang/include/absl/status/status.h :warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29516:
 | /usr/local/clang/include/absl/strings/cord.h : 1159 : 17c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 ch a1159r | *i nalbisnle_ nCoonrnduRlelp *e xapbrstle_xnto)n;n
u      l| l                ^ 
Ne/usr/local/clang/include/absl/base/nullability.hw:E241x:t22e:r nnote: aexpanded from macro 'absl_nonnull'l
Re  p241( | 
#      d| e                ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _NonnulIn file included from ls2/s2measures.cc
:      18| :
                     ^In file included from 
../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, In file included from cs2/s2lax_polyline_shape.cco:n18s:
tIn file included from  ../src/s2/s2lax_polyline_shape.hc:h28a:
rIn file included from *../src/s2/encoded_s2point_vector.h :a29b:
sIn file included from l../src/s2/s2coder.h_:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hs:229,:

      /usr/local/clang/include/absl/strings/cord.h| :                                              ^1183
:47/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nullable'
 1183   | 257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
CordReIn file included from ps2/s2measures.cc*: 18a:
bIn file included from s../src/s2/s2measures.hl:_24n:
uIn file included from l../src/s2/s2point.hl:a25b:
lIn file included from e../src/s2/util/coding/coder.h :r36e:
p)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(CorIn file included from d:../src/s2/base/casts.h::I36n:
lIn file included from i../src/s2/base/logging.hn:e21R:
eIn file included from p/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
on/usr/local/clang/include/absl/log/internal/check_op.hn:u519l:l17 :r hwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
      |                                                    ^
  519 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en oanbnsull_ln oenxnpurltle x_tN)o;n
n      u| l                ^l

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2lax_polyline_shape.cc257: | 18#:
dIn file included from e../src/s2/s2lax_polyline_shape.hf:i28n:
eIn file included from  ../src/s2/encoded_s2point_vector.ha:b29s:
lIn file included from _../src/s2/s2coder.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:u29l:
l/usr/local/clang/include/absl/strings/cord.ha:b1230l:e20
:       | warning:                       ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

 1230In file included from  | s2/s2measures.cci:n18l:
iIn file included from n../src/s2/s2measures.he: 24c:
oIn file included from n../src/s2/s2point.hs:t25 :
cIn file included from h../src/s2/util/coding/coder.ha:r36*:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37 :
CIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:d21::
:/usr/local/clang/include/absl/log/internal/check_op.hI:n521l:i17n:e Rwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
::d  a521t | a ( )   ccoonnsstt  {c
h      a| r                   ^*
 ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23u:l lnote: aexpanded from macro 'absl_nullable'b
le   257s | 1#,d ecfoinnset  acbhsalr_*n ualblsalb_lneu l_lNaublllea bsl2e,

            | |                       ^                ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from In file included from ../src/s2/s2measures.hs2/s2lax_polyline_shape.cc::2418:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2lax_polyline_shape.h::2528:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/encoded_s2point_vector.h::3629:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.h::2167:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/internal/status_internal.h::3729:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/cord.h::211234:
:/usr/local/clang/include/absl/log/internal/check_op.h20::521 :warning: 47type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
1234 | i  n521l | i n e   ccoonnsstt  cchhaarr**  aabbssll__nnounlnlualbll eC osr1d,: :cIonnlsitn ecRheapr:*: aasb_sclh_anrusl(l)a bcloen sst2 ,{

            | |                                               ^                   ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h257::24123::22 :note:  expanded from macro 'absl_nullable'note: 
expanded from macro 'absl_nonnull'
  257   | 241# | d#edfeifnien ea basbls_ln_unlolnanbullel  __NNuolnlnaubllle

            | |                      ^                      ^

In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const cIn file included from hs2/s2lax_polyline_shape.cca:r18*:
 In file included from a../src/s2/s2lax_polyline_shape.hb:s28l:
_In file included from n../src/s2/encoded_s2point_vector.ho:n29n:
uIn file included from l../src/s2/s2coder.hl: 23e:
xIn file included from p/usr/local/clang/include/absl/status/status.hr:t67e:
xIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      /usr/local/clang/include/absl/strings/cord.h| :                ^1239
:38/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
 1239   | 241i | n#ldienfei naeb salb:s:lc_onrodn_niunltle r_nNaoln:n:uClolr
d      R| e                     ^p
* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2loop.cc::24130::
22In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h :note: 45expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/container/internal/raw_hash_set.h  :2412663 | :#53d:e fwarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
e absl_ n2663o | n n u l l   _TN&o&n nvualllu
e       | A                     ^B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:29:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:105:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:31:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:28:
In file included from ../src/s2/encoded_s2point_vector.h:31:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
In file included from s2/s2measures.cc:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2measures.h::24124::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l82_:
nIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h :_32N:
o/usr/local/clang/include/absl/strings/str_format.hn:n380u:l43l:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.hIn file included from :s2/s2max_distance_targets.cc32::
16:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :../src/s2/s2max_distance_targets.h860::3243:
:In file included from  ../src/s2/s2edge_distances.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
In file included from ../src/s2/s2edge_crossings.h:47:
  In file included from 860../src/s2/s2predicates.h | : 55 :
fIn file included from r/usr/local/clang/include/absl/flags/flag.hi:e42n:
dIn file included from  /usr/local/clang/include/absl/flags/internal/flag.hv:o30i:
d /usr/local/clang/include/absl/base/call_once.hA:b52s:l24F:o rwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tFlus   h52( | Fsotrdm:a:taStionmki*c <aubisnlt_3n2o_ntn>u*l la bssiln_kn,o
n      n| u                                          ^l
l C/usr/local/clang/include/absl/base/nullability.ho:n241t:r22o:l Wnote: oexpanded from macro 'absl_nonnull'r
d(  
241       | | #                       ^defin
e ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2max_distance_targets.ccs2/s2measures.cc::1618:
:
In file included from In file included from ../src/s2/s2max_distance_targets.h../src/s2/s2measures.h::3224:
:
In file included from In file included from ../src/s2/s2edge_distances.h../src/s2/s2point.h::3127:
:
In file included from In file included from ../src/s2/s2edge_crossings.h../src/s2/s2coder.h::4723:
:
In file included from In file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/status/status.h::5567:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/status/internal/status_internal.h::4229:
:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/strings/cord.h::3082:
:
/usr/local/clang/include/absl/base/call_once.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h53::2322:
:In file included from  /usr/local/clang/include/absl/crc/crc32c.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32
:
/usr/local/clang/include/absl/strings/str_format.h   :53867 | : 60 :   warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl::  o867n | c e _efxlpalgi*c iatb sFlo_rnmoantnSuilnlk (fsltarg_)f;o
r      m| a                     ^t
_i/usr/local/clang/include/absl/base/nullability.hn:t241e:r22n:a lnote: :expanded from macro 'absl_nonnull':
Fo  r241m | a#tdSeifniknIem palb*s la_bnsoln_nnuolnln u_lNlo nsn)u
l      l| 
                                                           ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_inteIn file included from rs2/s2max_distance_targets.ccn:a16l:
:In file included from :../src/s2/s2max_distance_targets.hF:o32r:
mIn file included from a../src/s2/s2edge_distances.ht:S31i:
nIn file included from k../src/s2/s2edge_crossings.hI:m47p:
lIn file included from *../src/s2/s2predicates.h :a55b:
sIn file included from l/usr/local/clang/include/absl/flags/flag.h_:n42o:
nIn file included from n/usr/local/clang/include/absl/flags/internal/flag.hu:l30l:
 /usr/local/clang/include/absl/base/call_once.hs:i96n:k33_:; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                       ^

/usr/local/clang/include/absl/base/nullability.h:   24196: | 22 :  fnote: rexpanded from macro 'absl_nonnull'i
en  d241  | s#tdde:f:ianteo maibcs<lu_innotn3n2u_ltl> *_ Naobnsnlu_lnlo
n      n| u                     ^l
l base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:16:
In file included from ../src/s2/s2max_distance_targets.h:32:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCIn file included from Ts2/s2max_distance_targets.ccI:O16N:
(In file included from m../src/s2/s2max_distance_targets.hu:)32
:
      In file included from | ../src/s2/s2edge_distances.h                            ^:
31:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2edge_crossings.h::24147::
22In file included from :../src/s2/s2predicates.h :note: 55expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/flags/flag.h  :241110 | :#29d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e absl  _110n | ovnoniudl lS e_tNFolnangu(lalb
s      l| :                     ^:
Flag<T>* absl_nonnull flag, const T& v) In file included from {s2/s2memory_tracker.cc
:      18| :
                            ^In file included from 
../src/s2/s2memory_tracker.h:28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2error.h::24129::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241In file included from  | /usr/local/clang/include/absl/strings/cord.h#:d94e:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s641l:_68n:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll _N  o641n | n u lelx
p      l| i                     ^c
it MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thIn file included from is2/s2max_distance_targets.ccs:)16,:

In file included from       ../src/s2/s2max_distance_targets.h| :                                                                   ^~~~32
:
In file included from ../src/s2/s2edge_distances.h:31:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl:/usr/local/clang/include/absl/synchronization/mutex.h::F649l:a29g:< Twarning: >type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l649_ | n o nenxupllli cfilta gM,u tceoxnLsotc kV(&M uvt)e x{*
       a| b                            ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'm
u,   241c | o#ndsetf iCnoen daibtsilo_nn&o ncnounldl) 
_      N| o                            ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   In file included from bs2/s2measures.cco:o18l:
 In file included from (../src/s2/s2measures.h*:a24b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from  /usr/local/clang/include/absl/status/status.he:v67a:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.h):(29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t86 :
Co/usr/local/clang/include/absl/strings/cord_analysis.hn:d32i:t47i:o nwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl   _32n | osninzuel_lt)  G=e tnEusltlipmtart;e
d      M| e         ^m
or/usr/local/clang/include/absl/base/nullability.hy:U257s:a23g:e (note: cexpanded from macro 'absl_nullable'o
ns  t257  | C#odredfRienpe*  aabbssll__nnuolnlnaubllle  r_eNpu)l;l
a      b| l                                              ^e

      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2memory_tracker.cc
:18:
  In file included from 241../src/s2/s2memory_tracker.h | :#28d:
eIn file included from f../src/s2/s2error.hi:n29e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94_:
NIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:
948      :| 48                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nulIn file included from ls2/s2measures.cca:b18l:
eIn file included from  ../src/s2/s2measures.he:v24a:
lIn file included from _../src/s2/s2point.h):(27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
CIn file included from o/usr/local/clang/include/absl/status/status.hn:d67i:
tIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.ho:n29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s86l:
_/usr/local/clang/include/absl/strings/cord_analysis.hn:o50n:n49u:l lwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
= nu   l50l | pstirz;e
_      t|                                                 ^G
et/usr/local/clang/include/absl/base/nullability.hMore:P241r:e22c:i snote: eexpanded from macro 'absl_nonnull'M
em  o241r | y#Udseafgien(ec oanbsstl _CnoorndnRuelpl*  _aNbosnln_unloln
n      u| l                     ^l
 rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2memory_tracker.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2memory_tracker.h:28  :
241In file included from  | ../src/s2/s2error.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n951u:l9l:
       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  951 |   void* absl_nIn file included from us2/s2measures.ccl:l18a:
bIn file included from l../src/s2/s2measures.he: 24a:
rIn file included from g../src/s2/s2point.h_: 27=:
 In file included from n../src/s2/s2coder.hu:l23l:
pIn file included from t/usr/local/clang/include/absl/status/status.hr:;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h        ^:
29:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::25786::
23:/usr/local/clang/include/absl/strings/cord_analysis.h :56note: :expanded from macro 'absl_nullable'56
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def   i56n | es iazbes_lt_ nGueltlEasbtliem a_tNeudlFlaaibrlSeh
a      r| e                      ^M
emoryUsage(cIn file included from os2/s2memory_tracker.ccn:s18t:
 In file included from C../src/s2/s2memory_tracker.ho:r28d:
RIn file included from e../src/s2/s2error.hp:*29 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :r94e:
pIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                                       ^:
954:52/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
954 |    241  | s#tdaetfiicn eb oaobls lC_anlolnVnouildlP t_rNFounnncutlilo
n      (| c                     ^o
nst Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 | 380  warning se generatedx.
plicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2point_region.cc -o s2/s2point_region.o
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExteIn file included from rs2/s2measures.ccn:a18l:
RIn file included from e../src/s2/s2measures.hp:(24a:
bIn file included from s../src/s2/s2point.hl::27::
sIn file included from t../src/s2/s2coder.hr:i23n:
gIn file included from _/usr/local/clang/include/absl/status/status.hv:i67e:
wIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hd:a29t:
aIn file included from ,/usr/local/clang/include/absl/strings/cord.h
:      94| :
         ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:241:/usr/local/clang/include/absl/synchronization/mutex.h22::489 :14note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #def  i489n | e   a b s l _vnooindn u(l*la b_sNlo_nnnuulllla
b      l| e                     ^ 
invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2memory_tracker.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2memory_tracker.h:
:In file included from 28/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2error.h:
:/usr/local/clang/include/absl/synchronization/mutex.h29::
489In file included from :/usr/local/clang/include/absl/status/status.h45::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
29:
/usr/local/clang/include/absl/strings/cord.h  :4891159 | : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
voi d1159  | (i*nalbisnle_ nCuolrldaRbelpe*  ianbvsalr_inaonntn)u(lvlo iNde*w Eaxbtselr_nnaullRleapb(i
l      i| t                ^y
_unkn/usr/local/clang/include/absl/base/nullability.ho:w241n:)22,:
       | note:                                             ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241289 | :#34d:e fnote: iexpanded from macro 'absl_nullability_unknown'n
e   a289b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
i      l| i                     ^t
y_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499In file included from  | s2/s2memory_tracker.cc : 18v:
oIn file included from i../src/s2/s2memory_tracker.hd: 28E:
nIn file included from a../src/s2/s2error.hb:l29e:
DIn file included from e/usr/local/clang/include/absl/status/status.hb:u67g:
LIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hg:(29c:
o/usr/local/clang/include/absl/strings/cord.hn:s1183t: 47c:h awarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 abs l1183_ | n u l l a b l e   n a m e ) ; 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d eCfoirndeR eapb*s la_bnsull_lnaublllea b_lNeu lrleapb)l
e      
|                                                     ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex*In file included from  s2/s2memory_tracker.cca:b18s:
lIn file included from _../src/s2/s2memory_tracker.hn:o28n:
nIn file included from u../src/s2/s2error.hl:l29 :
mIn file included from u/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from                                        ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.h241::122222::52 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | # d1222e | fiinnlei naeb svlo_indo nCnourldl: :_INnolninnuelRle
p      :| :                     ^S
wap(Cord::In file included from Is2/s2measures.ccn:l18i:
nIn file included from e../src/s2/s2measures.hR:e24p:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
rIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.hs:)29 :
{In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                                                   ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/synchronization/mutex.h241::55222::64 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #552d | e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18In file included from :
s2/s2measures.ccIn file included from :../src/s2/s2memory_tracker.h18::
28In file included from :
../src/s2/s2measures.hIn file included from :../src/s2/s2error.h24::
29In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/strings/cord.h67::
1230In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h20::29 :
In file included from warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h: 311230:
 | /usr/local/clang/include/absl/synchronization/mutex.hi:n556l:i38n:e  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst   556c | h a rv*o iadb sLlo_cnkuSllloawbLloeo pC(oSrydn:c:hIWnaliitnPeaRreapm:s:*d aatbas(l)_ ncoonnnsutl l{ 
w      a| i                   ^t
p, /usr/local/clang/include/absl/base/nullability.hi:n257t: 23f:l anote: gexpanded from macro 'absl_nullable's
);  
257       | | #                                     ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef i_nNeu lalbasbll_en
o      n| n                      ^u
ll _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2memory_tracker.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2memory_tracker.h::2928:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2error.h::9429:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/status/status.h::3167:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/status/internal/status_internal.h::55829::
35:/usr/local/clang/include/absl/strings/cord.h :1234warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]20
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]558
 |   b o1234o | li nLloicnkeS lcoownWsitt hcDheaard*l ianbes(lM_unHoonwn ualbls lC_onrodn:n:uIlnll ihnoewR,e
p      :| :                                  ^a
s_/usr/local/clang/include/absl/base/nullability.hc:h241a:r22s:( )note:  expanded from macro 'absl_nonnull'c
on  s241t |  #{d
e      f| i                   ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _In file included from Ns2/s2measures.cco:n18n:
uIn file included from l../src/s2/s2measures.hl:
24      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                         In file included from  s2/s2memory_tracker.cc : 18 :
cIn file included from o../src/s2/s2memory_tracker.hn:s28t:
 In file included from C../src/s2/s2error.ho:n29d:
iIn file included from t/usr/local/clang/include/absl/status/status.hi:o67n:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l/usr/local/clang/include/absl/strings/cord.h_:n1239u:l38l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 con d1239, | 
i      n| l                                             ^i
ne/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:: :note: cexpanded from macro 'absl_nullable'o
rd  _257i | n#tdeerfnianle: :aCbosrld_Rneupl*l aabblsel __nNounlnlualbll eC
o      r| d                      ^:
:InlineRep::as_tree()
In file included from       s2/s2measures.cc| :                                     ^18
:
In file included from ../src/s2/s2measures.h/usr/local/clang/include/absl/base/nullability.h::24241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l562: 23_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  
562       | |                       ^ 
void LockSlow(MuHow absl_nonnull how, const Condition* In file included from as2/s2memory_tracker.ccb:s18l:
_In file included from n../src/s2/s2memory_tracker.hu:l28l:
aIn file included from b../src/s2/s2error.hl:e29 :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:d67,:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                      ^29
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::1245241::3822::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 |  #1245d | eifnilnien ea basbls_ln:o:ncnourldl_ i_nNtoenrnnualll:
:      C| o                     ^r
dRep* abslIn file included from _s2/s2measures.ccn:u18l:
lIn file included from a../src/s2/s2measures.hb:l24e:
 In file included from C../src/s2/s2point.ho:r27d:
:In file included from :../src/s2/s2coder.hI:n23l:
iIn file included from n/usr/local/clang/include/absl/status/status.he:R67e:
pIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h::t29r:
eIn file included from e/usr/local/clang/include/absl/strings/cord.h(:)94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                     ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::562257::5823::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

  257   | 562# | d e fvionied  aLbosclk_Snluolwl(aMbulHeo w_ Naublslla_bnloen
n      u| l                      ^l
 how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:In file included from 1258s2/s2measures.cc::3618::
 In file included from ../src/s2/s2measures.hwarning: :24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27 :
1258In file included from  | ../src/s2/s2coder.hi:n23l:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67c:
oIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hd:_29i:
nIn file included from t/usr/local/clang/include/absl/strings/cord.he:r94n:
aIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h:::31C:
o/usr/local/clang/include/absl/synchronization/mutex.hr:d565R:e36p:F lwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
* ab  s565l | _ n ovnoniudl lU
n      l| o                                   ^c
kS/usr/local/clang/include/absl/base/nullability.hl:o241w:(22S:y nnote: cexpanded from macro 'absl_nonnull'h
Wa  i241t | P#adreafmisn*e  aabbssll__nnuolnlnaubllle  _wNaointnpu)l lA
B      S| L                     ^_
ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2memory_tracker.cc:  18576:
 | In file included from  ../src/s2/s2memory_tracker.h :v28o:
iIn file included from d../src/s2/s2error.h :T29r:
yIn file included from R/usr/local/clang/include/absl/status/status.he:m67o:
vIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h(:b29a:
s/usr/local/clang/include/absl/strings/cord.he:_1268i:n51t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l::P e1268r | TihnrleiandeS yvnocihd*  Caobrsdl:_:nIonnlniunlelR esp):;:
E      m| p                                                ^l
ac/usr/local/clang/include/absl/base/nullability.he:T241r:e22e:( Cnote: oexpanded from macro 'absl_nonnull'r
dR  e241p | *# daebfsiln_en oanbnsull_ln ornenpu,l
l       | _                                                  ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2measures.ccn:n18u:
lIn file included from l../src/s2/s2measures.h :_24N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnuIn file included from ls2/s2memory_tracker.ccl: 18s:
)In file included from ;../src/s2/s2memory_tracker.h
:      28| :
                                            ^In file included from 
../src/s2/s2error.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
/usr/local/clang/include/absl/strings/cord.h  :2411275 | :#51d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e ab s1275l | _innolninnuel lv o_iNdo nCnourldl:
:      I| n                     ^l
ineRep::EmplaceTIn file included from rs2/s2measures.cce:e18(:
CIn file included from o../src/s2/s2measures.hr:d24R:
eIn file included from p../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hr:e29p:
,In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                                                  ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/base/nullability.h31::
241:/usr/local/clang/include/absl/synchronization/mutex.h22::580 :34note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #d  e580f | i n eb aasbes_li_nntoenrnnualll: :_PNeornTnhurlela
d      S| y                     ^n
ch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18In file included from :
s2/s2measures.ccIn file included from :../src/s2/s2memory_tracker.h18::
28In file included from :
../src/s2/s2measures.hIn file included from :../src/s2/s2error.h24::
29In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/strings/cord.h67::
1282In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h47::29 :
In file included from warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h: 311282:
 | /usr/local/clang/include/absl/synchronization/mutex.hi:581:38:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e v  o581i | d   C o r d :b:aIsnel_iinnetReerpn:a:lS:e:tPTerreTeh(rCeoarddSRyenpc*h *a basbls_ln_onnonnunlull lr ewp),;

            | |                                               ^                                     ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 | In file included from  s2/s2memory_tracker.cc :v18o:
iIn file included from d../src/s2/s2memory_tracker.h :T28r:
aIn file included from n../src/s2/s2error.hs:(29M:
uIn file included from H/usr/local/clang/include/absl/status/status.ho:w67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n1290n:u54l:l  warning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
w);   1290/ | /i nulsiende  fvoori dC oCnodrVda:r:-I>nMluitneexR etpr:a:nSsefteTrr
e      e| O                   ^r
Em/usr/local/clang/include/absl/base/nullability.hp:t241y:(22C:o rnote: dexpanded from macro 'absl_nonnull'R
ep  *241  | a#bdself_innuel laabbslle_ nroenpn,u
l      l|                                                       ^_
No/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:
       | note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nullaIn file included from bs2/s2measures.ccl:e18 :
_In file included from N../src/s2/s2measures.hu:l24l:
aIn file included from b../src/s2/s2point.hl:e27
:
      In file included from | ../src/s2/s2coder.h                      ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2memory_tracker.cci:n18e:
 In file included from a../src/s2/s2memory_tracker.hb:s28l:
_In file included from n../src/s2/s2error.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl:
1301      :| 56                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline voiIn file included from ds2/s2measures.cc :C18o:
rIn file included from d../src/s2/s2measures.h:::24I:
nIn file included from l../src/s2/s2point.hi:n27e:
RIn file included from e../src/s2/s2coder.hp::23::
CIn file included from o/usr/local/clang/include/absl/status/status.hm:m67i:
tIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hr:e29e:
(In file included from c/usr/local/clang/include/absl/strings/cord.ho:n94s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hC:o31r:
d/usr/local/clang/include/absl/synchronization/mutex.hR:e590p:*40 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_nu  l590l | a b leex pollidc_irte pM,u
t      e| x                                                       ^(
co/usr/local/clang/include/absl/base/nullability.hn:s257t: 23v:o lnote: aexpanded from macro 'absl_nullable't
il  e257  | M#udteefxi*n ea basbls_ln_unlullalbalbel e/ *_iNgunlolraebdl*e/
)       | {                      ^}

      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2memory_tracker.ccexpanded from macro 'absl_nullable':
18:
In file included from   ../src/s2/s2memory_tracker.h257: | 28#:
dIn file included from e../src/s2/s2error.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.ha:b1302l:e50 :_ Nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab l1302e | 
        |                        ^ 
                                    CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlinIn file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   eIn file included from xs2/s2lax_polyline_shape.ccp:l18i:
cIn file included from i../src/s2/s2lax_polyline_shape.ht: 32M:
uIn file included from t../src/s2/s2polyline.he:x34L:
oIn file included from c../src/s2/s2builder.hk:(31M:
uIn file included from t/usr/local/clang/include/absl/container/flat_hash_set.he:x45*:
 ab/usr/local/clang/include/absl/container/internal/raw_hash_set.hs:l2663_:n53o:n nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
l mu, c o2663n | s t   C o n dTi&t&i ovna&l uceo nAdB)S
L      _| I                            ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:A Tnote: Texpanded from macro 'absl_nonnull'R
IBUT  E241_ | C#AdPeTfUiRnEeD _aBbYs(lt_hniosn)n)u
l      l|                                                      ^~~~_
Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/raw_hash_set.h::232692:
:In file included from 58/usr/local/clang/include/absl/status/status.h:: 67warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h :269294 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hc:o670n:s74t:  Twarning: &'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
value   670A | B S Le_xIpNlTiEcRiNtA LR_eAaTdTeRrIMBuUtTeEx_LCoAcPkT(UMRuEtDe_xB&Y (mtuh iAsB)S)L
_      I| N                                                         ^~~~T
ERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:  2734681: | 65 :  exwarning: p'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
icit  R2734e | a d e r M u t ee x RL e p o:c : kC (o Mp uy tTTeo&xA&& r vrmaauly u(eA cBhSAaBLrS_L*_I INaTNbEsTRlEN_RAnNLo_AnALnT_uATlTRlIT BdRUsITtBE)U_ TCEcA_oPnCTsUAtPR TE{D
U_R      BE| D                                               ^Y_
(BtYh(i/usr/local/clang/include/absl/base/nullability.hts:)h241i,:s
))22
      :      |                                                                           ^~~~| note:                                                                 ^~~~
expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull/usr/local/clang/include/absl/synchronization/mutex.h
:      689| :                     ^35
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nIn file included from us2/s2max_distance_targets.ccl:l28a:
bIn file included from i../src/s2/s2furthest_edge_query.hl:i33t:
yIn file included from _../src/s2/s2closest_edge_query_base.hu:n32k:
nIn file included from o/usr/local/clang/include/absl/container/btree_set.hw:n65 :
aIn file included from r/usr/local/clang/include/absl/container/internal/btree.hg:)70;:

In file included from       /usr/local/clang/include/absl/container/internal/layout.h| :               ^198
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/str_cat.h::289116::
34In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :note: 23expanded from macro 'absl_nullability_unknown':

/usr/local/clang/include/absl/strings/numbers.h:  66289: | 41#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne ab   s66l | _ n u l l a b i l i t y _ u n k n o w n   _ N u l l _ u n s piencti_ftiyepde
*       | a                                 ^b
sl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2measures.cc241::1822:
:In file included from  ../src/s2/s2measures.hnote: :expanded from macro 'absl_nonnull'24
:
In file included from ../src/s2/s2point.h  :24127 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
 In file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hN:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l830l:
14      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull fuIn file included from ns2/s2max_distance_targets.ccc:)28(:
TIn file included from *../src/s2/s2furthest_edge_query.h :a33b:
sIn file included from l../src/s2/s2closest_edge_query_base.h_:n32u:
lIn file included from l/usr/local/clang/include/absl/container/btree_set.ha:b65i:
lIn file included from i/usr/local/clang/include/absl/container/internal/btree.ht:y70_:
uIn file included from n/usr/local/clang/include/absl/container/internal/layout.hk:n198o:
wIn file included from n/usr/local/clang/include/absl/strings/str_cat.h):,116
:
      In file included from | /usr/local/clang/include/absl/strings/internal/stringify_sink.h             ^:
23:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/numbers.h::24177::2261::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | #   d77e | f[i[nneo daibsscla_rndo]n]n ublolo l_ NSoinmnpullelA
t      o| f                     ^(
absl:In file included from :s2/s2measures.ccs:t18r:
iIn file included from n../src/s2/s2measures.hg:_24v:
iIn file included from e../src/s2/s2point.hw: 27s:
tIn file included from r../src/s2/s2coder.h,: 23f:
lIn file included from o/usr/local/clang/include/absl/status/status.ha:t67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31o:
u/usr/local/clang/include/absl/synchronization/mutex.ht:)830;:
36      :|                                                              ^warning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241  :83022 | :   note:  expanded from macro 'absl_nonnull' 
    b241o | o#ld e(f*ianbes la_bnsoln_nnuolnln ufluln c_)N(oTn*n ualbls
l      _| n                     ^u
llability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34In file included from :s2/s2max_distance_targets.cc :note: 28expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/s2furthest_edge_query.h:  33289:
 | In file included from #../src/s2/s2closest_edge_query_base.hd:e32f:
iIn file included from n/usr/local/clang/include/absl/container/btree_set.he: 65a:
bIn file included from s/usr/local/clang/include/absl/container/internal/btree.hl:_70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl:a198b:
iIn file included from l/usr/local/clang/include/absl/strings/str_cat.hi:t116y:
_In file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:k23n:
o/usr/local/clang/include/absl/strings/numbers.hw:n88 :_62N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
unsp   e88c | i[f[ineodd
i      s| c                                 ^a
rd]] bool SimpleAtod(absl:In file included from :s2/s2measures.ccs:t18r:
iIn file included from n../src/s2/s2measures.hg:_24v:
iIn file included from e../src/s2/s2point.hw: 27s:
tIn file included from r../src/s2/s2coder.h,: 23d:
oIn file included from u/usr/local/clang/include/absl/status/status.hb:l67e:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
o/usr/local/clang/include/absl/synchronization/mutex.hu:t831):;46
:       | warning:                                                              ^type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h  :831241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
ty  p241e | n#admeef ianbes la:b:stly_pneo_ninduelnlt i_tNyo<nTn>u:l:lt
y      p| e                     ^*
 absl_nullability_unknoIn file included from ws2/s2max_distance_targets.ccn:
28      :
| In file included from                                              ^../src/s2/s2furthest_edge_query.h
:33:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_edge_query_base.h289::3234:
:In file included from  /usr/local/clang/include/absl/container/btree_set.hnote: :expanded from macro 'absl_nullability_unknown'65
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h  :28970 | :
#In file included from d/usr/local/clang/include/absl/container/internal/layout.he:f198i:
nIn file included from e/usr/local/clang/include/absl/strings/str_cat.h :a116b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl:a98b:i60l:i twarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
unkn   o98w | n[ [_nNoudlils_cuanrsdp]e]c ibfoioeld 
S      i| m                                 ^p
leAtob(absl::string_view str, In file included from bs2/s2measures.cco:o18l:
*In file included from  ../src/s2/s2measures.ha:b24s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23:
 In file included from o/usr/local/clang/include/absl/status/status.hu:t67):
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                                           ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h94::
241In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
844:  10241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fi  n844e |   a b s l _ nTo*n naublsll __nNoonnnnuullll 
o      b| j                     ^e
ct,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2max_distance_targets.cco:n28n:
uIn file included from l../src/s2/s2furthest_edge_query.hl: 33_:
NIn file included from o../src/s2/s2closest_edge_query_base.hn:n32u:
lIn file included from l/usr/local/clang/include/absl/container/btree_set.h
:      65| :
                     ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44In file included from :s2/s2measures.cc :warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2measures.h:24:
  In file included from 112../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 845 : 45 :i nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
typ  e845* |   a b s l _ nboononlu l(la bosult:):;t
y      p| e                                           ^_
id/usr/local/clang/include/absl/base/nullability.he:n241t:i22t:y <note: Texpanded from macro 'absl_nonnull'>
::  t241y | p#ed:e:f*i naeb salb_snlo_nnnounlnlu lmle t_hNoodn)n(u)l)l;

            | |                      ^                                            ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2max_distance_targets.ccn:n28u:
lIn file included from l../src/s2/s2furthest_edge_query.h :_33N:
oIn file included from n../src/s2/s2closest_edge_query_base.hn:u32l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_set.h      :| 65                     ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 | In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.h : 24 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.ha:b850s:l16::: iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
128  *850  | a b s l _ n ocnonnusltl  To*u ta)b;s
l      _| n                                                      ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22o:b jnote: eexpanded from macro 'absl_nonnull'c
t  ,241
 |       #| d               ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45In file included from :s2/s2max_distance_targets.cc :warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2furthest_edge_query.h:33  :
851In file included from  | ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h :b65o:
oIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :(70a:
bIn file included from s/usr/local/clang/include/absl/container/internal/layout.hl::198::
tIn file included from y/usr/local/clang/include/absl/strings/str_cat.hp:e116_:
iIn file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.he:n23t:
i/usr/local/clang/include/absl/strings/numbers.ht:y118<:T56>:: :warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
pe::  *118  | a b s l _ n o n n u l l   m e t h o d ) ( ) 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241a | b#sdle:f:iunien ta1b2s8l*_ naobnsnlu_lnlo n_nNuolnln uolult
)      ;| 
                     ^      
|                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2measures.cc :a18b:
sIn file included from l../src/s2/s2measures.h_:n24o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | voidIn file included from  s2/s2measures.ccP:u18t:
TIn file included from w../src/s2/s2measures.ho:D24i:
gIn file included from i../src/s2/s2point.ht:s27(:
uIn file included from i../src/s2/s2coder.hn:t233:
2In file included from _/usr/local/clang/include/absl/status/status.ht: 67i:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:h29a:
rIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u886l:l31 :b uwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
      |                                       ^886
 |  /usr/local/clang/include/absl/base/nullability.h :e241x:p22l:i cnote: iexpanded from macro 'absl_nonnull't
 Con  d241i | t#idoenf(icnoen satb sTl*_ naobnsnlu_lnlo n_nNuolnln uolblj
)      
|                            ^| 
                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2max_distance_targets.cc_:n28o:
nIn file included from n../src/s2/s2furthest_edge_query.hu:l33l:
 In file included from _../src/s2/s2closest_edge_query_base.hN:o32n:
nIn file included from u/usr/local/clang/include/absl/container/btree_set.hl:l65
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                     ^:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* In file included from as2/s2measures.ccb:s18l:
_In file included from n../src/s2/s2measures.ho:n24n:
uIn file included from l../src/s2/s2point.hl: 27v:
aIn file included from l../src/s2/s2coder.hu:e23,:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                                      ^67
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e896f:i31n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n896o | n n uelxlp l_iNcointn uCloln
d      i| t                     ^i
on(const T* absl_nonnull oIn file included from bs2/s2max_distance_targets.ccj:)28
:
      In file included from | ../src/s2/s2furthest_edge_query.h                              ^:
33:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2closest_edge_query_base.h::24132::
22In file included from :/usr/local/clang/include/absl/container/btree_set.h :65note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70  :
241In file included from  | /usr/local/clang/include/absl/container/internal/layout.h#:d198e:
fIn file included from i/usr/local/clang/include/absl/strings/str_cat.hn:e116 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:l23_:
n/usr/local/clang/include/absl/strings/numbers.ho:n158n:u57l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onnu  l158l | 
b      o| o                     ^l
 safe_strto16_base(absl::string_view text, int16_tIn file included from *s2/s2measures.cc :a18b:
sIn file included from l../src/s2/s2measures.h_:n24o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from v../src/s2/s2coder.ha:l23u:
eIn file included from ,/usr/local/clang/include/absl/status/status.h
:      67| :
                                                        ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31  :
241/usr/local/clang/include/absl/synchronization/mutex.h | :#922d:e48f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l922_ | n o nsntualtli c_ Nboononlu lGlu
a      r| a                     ^n
teedEqual(const ConditioIn file included from ns2/s2max_distance_targets.cc*: 28a:
bIn file included from s../src/s2/s2furthest_edge_query.hl:_33n:
uIn file included from l../src/s2/s2closest_edge_query_base.hl:a32b:
lIn file included from e/usr/local/clang/include/absl/container/btree_set.h :a65,:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                               ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/base/nullability.h::198257:
:In file included from 23/usr/local/clang/include/absl/strings/str_cat.h:: 116note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
257/usr/local/clang/include/absl/strings/numbers.h | :#160d:e57f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _160n | ubloloalb lsea f_eN_usltlratbol3e2
_      b| a                      ^s
e(absl::sIn file included from ts2/s2measures.ccr:i18n:
gIn file included from _../src/s2/s2measures.hv:i24e:
wIn file included from  ../src/s2/s2point.ht:e27x:
tIn file included from ,../src/s2/s2coder.h :i23n:
tIn file included from 3/usr/local/clang/include/absl/status/status.h2:_67t:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
v/usr/local/clang/include/absl/synchronization/mutex.ha:l923u:e48,:
       warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                                        ^

/usr/local/clang/include/absl/base/nullability.h  :923241 | : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l lc o_nNsotn nCuolnld
i      t| i                     ^o
n* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2max_distance_targets.cc23::28 :
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2furthest_edge_query.h
:33  :
257In file included from  | ../src/s2/s2closest_edge_query_base.h#:d32e:
fIn file included from i/usr/local/clang/include/absl/container/btree_set.hn:e65 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l70_:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198a:
bIn file included from l/usr/local/clang/include/absl/strings/str_cat.he: 116_:
NIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23a:
b/usr/local/clang/include/absl/strings/numbers.hl:e162
:      57| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view texIn file included from ts2/s2measures.cc,: 18i:
nIn file included from t../src/s2/s2measures.h6:424_:
tIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from v/usr/local/clang/include/absl/status/internal/status_internal.ha:l29u:
eIn file included from ,/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                                        ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/synchronization/mutex.h241::94822::10 :note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  241 | #  d948e | f i nbeo oalb s(l*_anbosnln_unlull l_aNbolnen uelvla
l      _| )                     ^(
const Condition* absl_nIn file included from os2/s2max_distance_targets.ccn:n28u:
lIn file included from l../src/s2/s2furthest_edge_query.h): 33=:
 In file included from n../src/s2/s2closest_edge_query_base.hu:l32l:
pIn file included from t/usr/local/clang/include/absl/container/btree_set.hr:;65
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h         ^:
70:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.h::257198::
23In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
257/usr/local/clang/include/absl/strings/numbers.h | :#165d:e39f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l165_ | n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
  abslIn file included from :s2/s2measures.cc::i18n:
tIn file included from 1../src/s2/s2measures.h2:824*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67v:
aIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hu:e29,:
 In file included from i/usr/local/clang/include/absl/strings/cord.hn:t94 :
bIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hs:e31):
;/usr/local/clang/include/absl/synchronization/mutex.h
:      948| :                                      ^48
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 948expanded from macro 'absl_nonnull' | 
    b241o | o#ld e(f*ianbes la_nublslla_bnloen neuvlall __)N(ocnonIn file included from nus2/s2memory_tracker.ccsl:tl18
 :
C      In file included from o| ../src/s2/s2memory_tracker.hn                     ^:d
28i:
tIn file included from i../src/s2/s2error.ho:n29*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
ul/usr/local/clang/include/absl/strings/cord.hl:)1505 :=41 :In file included from n us2/s2max_distance_targets.ccwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:l
p28t:
r ;In file included from 1505
../src/s2/s2furthest_edge_query.h |       :i| n33                                               ^l:

iIn file included from n/usr/local/clang/include/absl/base/nullability.h../src/s2/s2closest_edge_query_base.he:: 24132v::
o22In file included from i:/usr/local/clang/include/absl/container/btree_set.hd : note: C65expanded from macro 'absl_nonnull'o:

rIn file included from d:  :/usr/local/clang/include/absl/container/internal/btree.h241C: | o#70pdy:
eTfoIn file included from iAn/usr/local/clang/include/absl/container/internal/layout.hre:r a198ayb:
IsIn file included from mlp/usr/local/clang/include/absl/strings/str_cat.h_ln:(o116cn:
hnaIn file included from url/usr/local/clang/include/absl/strings/internal/stringify_sink.h*l  :a_bNs23oln:
_nn/usr/local/clang/include/absl/strings/numbers.huo:ln166ln
:u      57l| l:                     ^  
dwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
) co  n166s | tb o{o
lIn file included from        s2/s2measures.cc| s:                                        ^a18
f:
eIn file included from /usr/local/clang/include/absl/base/nullability.h_../src/s2/s2measures.h:s:241t24r::
t22In file included from o:../src/s2/s2point.hu :8note: 27_expanded from macro 'absl_nonnull':
b
In file included from a../src/s2/s2coder.hs  :e24123( | :
a#bIn file included from sd/usr/local/clang/include/absl/status/status.hle:f:67i::
snIn file included from te/usr/local/clang/include/absl/status/internal/status_internal.hr :ai29nb:
gs_In file included from vli/usr/local/clang/include/absl/strings/cord.h_e:nw94o :
ntIn file included from en/usr/local/clang/include/absl/strings/internal/cordz_info.hxu:lt31l,:
  /usr/local/clang/include/absl/synchronization/mutex.h_u:Ni951on:nt9n8:u_ tl*warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]la

b      s  | l951                     ^_ | n
 o nvnouildl*  vaablsule_,n
u      l| l                                                        ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241a:r22g:_  note: =expanded from macro 'absl_nonnull' 
nu  l241l | p#tdre;f
i      n| e        ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:In file included from n s2/s2memory_tracker.ccnnote: :uexpanded from macro 'absl_nullable'18l
l:
   In file included from 257_../src/s2/s2memory_tracker.hN | :#o28nd:
enIn file included from fu../src/s2/s2error.hli:ln29
e:
       In file included from a| /usr/local/clang/include/absl/status/status.hb                     ^:s
67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
a/usr/local/clang/include/absl/strings/cord.hb:l1514e: 29_:N uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abIn file included from l s2/s2max_distance_targets.cce1514:
 | 28       :
|  In file included from                       ^ ../src/s2/s2furthest_edge_query.h
 :c33o:
rIn file included from d../src/s2/s2closest_edge_query_base.h_:In file included from i32s2/s2measures.ccn:
:tIn file included from 18e/usr/local/clang/include/absl/container/btree_set.h:
r:In file included from n65../src/s2/s2measures.ha:
:lIn file included from 24:/usr/local/clang/include/absl/container/internal/btree.h:
::In file included from C70../src/s2/s2point.ho:
:rIn file included from 27d/usr/local/clang/include/absl/container/internal/layout.h:
RIn file included from :e../src/s2/s2coder.h198p:*:
23 In file included from :
a/usr/local/clang/include/absl/strings/str_cat.hIn file included from b:/usr/local/clang/include/absl/status/status.hs116:l:
67_In file included from :
n/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from o:/usr/local/clang/include/absl/status/internal/status_internal.hn23:n:
29u/usr/local/clang/include/absl/strings/numbers.h:
l:In file included from l168/usr/local/clang/include/absl/strings/cord.h ::t5994r::
e In file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h)warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31{
:

/usr/local/clang/include/absl/synchronization/mutex.h      :|   954                            ^168:
 | 52b:/usr/local/clang/include/absl/base/nullability.ho owarning: :ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241 
s:a22  f:954e _note:  | sexpanded from macro 'absl_nonnull' t
 rs  tt241ao | tu#i1dce f6b_iobnoael s aCeba(sllalb_Vnsooilndn:Put:lsrtlrF iu_nnNgc_otnviniounel(lwc
 o      nt| s                     ^et
x tC,o nudiintti1o6n_*t *a basbls_ln_onnonnunlull lc )v;a
l      u| e                                                   ^,

      /usr/local/clang/include/absl/base/nullability.h| :                                                          ^241
:22:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:In file included from 24s2/s2max_distance_targets.cc:
:In file included from 28../src/s2/s2point.h:
:In file included from 27../src/s2/s2furthest_edge_query.h:
:In file included from 33../src/s2/s2coder.h:
:In file included from 23../src/s2/s2closest_edge_query_base.h:
:In file included from 32/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/btree_set.h:
:In file included from 65/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/strings/str_cat.h:
:/usr/local/clang/include/absl/synchronization/mutex.h116::
956In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h52::23 :
warning: /usr/local/clang/include/absl/strings/numbers.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
170:59:   warning: 956type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  st  a170t | ibco oblo osla fCea_sstIn file included from tAs2/s2memory_tracker.ccnr:dt18Co:
auIn file included from l3../src/s2/s2memory_tracker.hl2:F_28ub:
naIn file included from cs../src/s2/s2error.hte:i(o29anb:
(sIn file included from cl/usr/local/clang/include/absl/status/status.h:o::n67sst:
trIn file included from  i/usr/local/clang/include/absl/status/internal/status_internal.hCn:og29n_:
dv/usr/local/clang/include/absl/strings/cord.hiite:iw1525 o:tne29*x: t a,warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] su
li_nn ot1525n3 | n 2u _lt l * cc oa)rb;d
      |                                                    ^s
_li_/usr/local/clang/include/absl/base/nullability.hnn:to241en:rn22un:la llnote: :expanded from macro 'absl_nonnull' :
vCa  ol241ur | de#,Rde
epf      *i | na                                                          ^eb
 sa/usr/local/clang/include/absl/base/nullability.hlb_:snl241o_:nnn22ou:nln lu note: lexpanded from macro 'absl_nonnull'tlr
 e_  eN241)o  | n{n
u#      ld| l                            ^e

f      i| /usr/local/clang/include/absl/base/nullability.hn                     ^:e
241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#lIn file included from d s2/s2measures.cce_:fN18oi:
nnIn file included from en../src/s2/s2measures.h u:al24bl:

sIn file included from       l../src/s2/s2point.h_| :                     ^n27
o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                     ^:
94In file included from :
s2/s2max_distance_targets.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h28::
31In file included from :
../src/s2/s2furthest_edge_query.h/usr/local/clang/include/absl/synchronization/mutex.h::33958:
:In file included from 50../src/s2/s2closest_edge_query_base.h:: 32warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/btree_set.h:65:
  In file included from 958/usr/local/clang/include/absl/container/internal/btree.h | : 70 :
sIn file included from t/usr/local/clang/include/absl/container/internal/layout.ha:t198i:
cIn file included from  /usr/local/clang/include/absl/strings/str_cat.hb:o116o:
lIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hC:a23s:
t/usr/local/clang/include/absl/strings/numbers.hA:n172d:C59a:l lwarning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
tho  d172( | cboonoslt  sCaofned_isttirotno*uIn file included from  6s2/s2memory_tracker.cca4:_b18bs:
laIn file included from s_../src/s2/s2memory_tracker.hen(:oa28nb:
snlIn file included from :u../src/s2/s2error.h:ls:lt29 r:
ciIn file included from )n/usr/local/clang/include/absl/status/status.h;g:
_67      v:
| iIn file included from                                                  ^e/usr/local/clang/include/absl/status/internal/status_internal.h
w: /usr/local/clang/include/absl/base/nullability.h29t::
e241/usr/local/clang/include/absl/strings/cord.hx:t:22,1530: :u 55inote: :nexpanded from macro 'absl_nonnull't 
6warning: 4  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_241
t | *#  da1530be | sfinlilni_enno enC oanrbdus:ll:_Cln hvounannkluIultlee, 
r_      aN| t                                                          ^oon
rn:u/usr/local/clang/include/absl/base/nullability.h:lC:lh
241u      n:| k22                     ^I:
t enote: rexpanded from macro 'absl_nonnull'a
to  r241( | c#odnesIn file included from fts2/s2measures.cci n:Ce18o :
raIn file included from db../src/s2/s2measures.h*s:l _24an:
boIn file included from sn../src/s2/s2point.hnlu:_l27ln:
 oIn file included from _n../src/s2/s2coder.hNn:uo23nln:
ulIn file included from  l/usr/local/clang/include/absl/status/status.hcl:
o67      r:
| d                     ^In file included from )
/usr/local/clang/include/absl/status/internal/status_internal.h :{29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                                                      ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:22/usr/local/clang/include/absl/synchronization/mutex.h:: 961:note: 34expanded from macro 'absl_nonnull':
 warning: In file included from   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2max_distance_targets.cc241
: | 28#  d:
961eIn file included from  | f i../src/s2/s2furthest_edge_query.h nse:t a33at:
biIn file included from scl../src/s2/s2closest_edge_query_base.h _b:no32oon:
ln In file included from uC/usr/local/clang/include/absl/container/btree_set.hla:ll65 l_:
BNyIn file included from oR/usr/local/clang/include/absl/container/internal/btree.hne:nfu70(lc:
loIn file included from 
n/usr/local/clang/include/absl/container/internal/layout.hs      :t|  198                     ^T:

*In file included from  /usr/local/clang/include/absl/strings/str_cat.ha:b116s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:o23n:
n/usr/local/clang/include/absl/strings/numbers.hu:l175l: 41s:e lwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
        | 175                                 ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a basbls_ln:o:nuniunltl1 2_8N*o nanbuslll_
n      o| n                     ^n
ull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2measures.ccd:e18f:
iIn file included from n../src/s2/s2measures.he: 24a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                     ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull cIn file included from as2/s2max_distance_targets.ccl:l28b:
aIn file included from c../src/s2/s2furthest_edge_query.hk:)33 :
cIn file included from o../src/s2/s2closest_edge_query_base.hn:s32t:
 In file included from {/usr/local/clang/include/absl/container/btree_set.h
:      65| :
                              ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/base/nullability.h70::
241In file included from :/usr/local/clang/include/absl/container/internal/layout.h22::198 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/str_cat.h
:116  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n182e: 7a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u182l | lc h_aNro*n naublsll
_      n| o                     ^n
null RoundTripDoubleToBuffer(In file included from ds2/s2measures.cco:u18b:
lIn file included from e../src/s2/s2measures.h :d24,:
 In file included from c../src/s2/s2point.hh:a27r:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
bIn file included from u/usr/local/clang/include/absl/strings/cord.hf:f94e:
rIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h      ^:
979:43/usr/local/clang/include/absl/base/nullability.h:: 241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'979
 |     241s | t#adteifci nbeo oalb sAll_wnaoynsnTurlule (_cNoonnsntu lClo
n      d| i                     ^t
ion* absIn file included from ls2/s2max_distance_targets.cc_:n28u:
lIn file included from l../src/s2/s2furthest_edge_query.ha:b33l:
eIn file included from )../src/s2/s2closest_edge_query_base.h :{32 :
rIn file included from e/usr/local/clang/include/absl/container/btree_set.ht:u65r:
nIn file included from  /usr/local/clang/include/absl/container/internal/btree.ht:r70u:
eIn file included from ;/usr/local/clang/include/absl/container/internal/layout.h :}198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h                                          ^:
116:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h257::2323:
:/usr/local/clang/include/absl/strings/numbers.h :note: 182expanded from macro 'absl_nullable':
60:   257warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def  i182n | ec haabrs*l _anbuslll_anbolnen u_lNlu lRloaubnldeT
r      i| p                      ^D
oubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, charIn file included from *s2/s2measures.cc :a18b:
sIn file included from l../src/s2/s2measures.h_:n24o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from b../src/s2/s2coder.hu:f23f:
eIn file included from r/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h      ^:
29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  1033241: | 20#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne  a1033b | s l _vnooindn uWlali t_(NMountneuxl*l 
a      b| s                     ^l
_nonnulIn file included from ls2/s2max_distance_targets.cc :m28u:
)In file included from  ../src/s2/s2furthest_edge_query.h{:
33      :
| In file included from                    ^../src/s2/s2closest_edge_query_base.h
:32:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h241::6522:
:In file included from  /usr/local/clang/include/absl/container/internal/btree.hnote: :expanded from macro 'absl_nonnull'70
:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h241: | 198#:
dIn file included from e/usr/local/clang/include/absl/strings/str_cat.hf:i116n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n183o:n58n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_No  n183n | uclhla
r      *|                       ^a
bsl_nonnull RoundTripFloaIn file included from ts2/s2measures.ccT:o18B:
uIn file included from f../src/s2/s2measures.hf:e24r:
(In file included from f../src/s2/s2point.hl:o27a:
tIn file included from  ../src/s2/s2coder.hf:,23 :
cIn file included from h/usr/local/clang/include/absl/status/status.ha:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from no/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :b31u:
f/usr/local/clang/include/absl/synchronization/mutex.hf:e1050r:)31;:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                         ^

/usr/local/clang/include/absl/base/nullability.h: 2411050: | 22 :  bnote: oexpanded from macro 'absl_nonnull'o
l   W241a | i#tdWeiftihnTei maebosult_(nMountneuxl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
mu, absl::Duration tiIn file included from ms2/s2max_distance_targets.cce:o28u:
tIn file included from )../src/s2/s2furthest_edge_query.h :{33
:
      In file included from | ../src/s2/s2closest_edge_query_base.h                              ^:
32:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_set.h::24165::
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :note: 70expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/layout.h  :241198 | :
#In file included from d/usr/local/clang/include/absl/strings/str_cat.he:f116i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :a23b:
s/usr/local/clang/include/absl/strings/numbers.hl:_191n:o42n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o191n | nsuilzle
_      t|                       ^S
ixDigitsToBuffer(double d, In file included from cs2/s2measures.cch:a18r:
*In file included from  ../src/s2/s2measures.ha:b24s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
bIn file included from u/usr/local/clang/include/absl/status/status.hf:f67e:
rIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h;:
29      :
| In file included from                                          ^/usr/local/clang/include/absl/strings/cord.h
:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'1069
:32:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin e1069  | a b sblo_onlo nWnauiltlW i_tNhoDnenaudllli
n      e| (                     ^M
utex* absl_nonnuIn file included from ls2/s2max_distance_targets.ccl: 28m:
uIn file included from ,../src/s2/s2furthest_edge_query.h :a33b:
sIn file included from l../src/s2/s2closest_edge_query_base.h:::32T:
iIn file included from m/usr/local/clang/include/absl/container/btree_set.he: 65d:
eIn file included from a/usr/local/clang/include/absl/container/internal/btree.hd:l70i:
nIn file included from e/usr/local/clang/include/absl/container/internal/layout.h): 198{:

In file included from       /usr/local/clang/include/absl/strings/str_cat.h| :                               ^116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/base/nullability.h::23241:
:/usr/local/clang/include/absl/strings/numbers.h22::198 :note: 7expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de  f198i | nceh aarb*s la_bnsoln_nnuolnln u_lNlo nFnausltlI
n      t| T                     ^o
Buffer(int32_t i, char* absl_nIn file included from os2/s2measures.ccn:n18u:
lIn file included from l../src/s2/s2measures.h :b24u:
fIn file included from f../src/s2/s2point.he:r27):

In file included from       ../src/s2/s2coder.h| :      ^23
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h  :24194 | :
#In file included from In file included from ds2/s2memory_tracker.cc/usr/local/clang/include/absl/strings/internal/cordz_info.he::f1831i:
:
nIn file included from /usr/local/clang/include/absl/synchronization/mutex.he../src/s2/s2memory_tracker.h: :1088a28b:s:
35lIn file included from _:n../src/s2/s2error.h owarning: :ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]29n
u:
lIn file included from  l/usr/local/clang/include/absl/status/status.h1088 : | _67 N:
 oIn file included from vn/usr/local/clang/include/absl/status/internal/status_internal.hno:iu29dl:
 l/usr/local/clang/include/absl/strings/cord.hE
:n      1666a| :b                     ^48l
:e Dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ugIn file included from Ls2/s2max_distance_targets.cc o:1666g28 | (i:
cnoIn file included from ln../src/s2/s2furthest_edge_query.hisn:te 33 cC:
hoaIn file included from rrd../src/s2/s2closest_edge_query_base.h*  :Cao32brs:
dl:In file included from _:/usr/local/clang/include/absl/container/btree_set.hnA:ud65lvl:
aanIn file included from bcl/usr/local/clang/include/absl/container/internal/btree.heeA: nn70daR:
meeIn file included from a)d/usr/local/clang/include/absl/container/internal/layout.h;(
:C      198h| a:
                                  ^rIn file included from 
I/usr/local/clang/include/absl/strings/str_cat.ht:/usr/local/clang/include/absl/base/nullability.he116:r:
257aIn file included from :t/usr/local/clang/include/absl/strings/internal/stringify_sink.h23o::r23 *:
note:  /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'absl_nullable'a:
b198s  :l257_53 | n#:odn enfwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]il
nle    iat198b,s
 | l      c_| n                                               ^hua
lrl*/usr/local/clang/include/absl/base/nullability.ha :abb241ls:el22_ :n_ Nonote: unexpanded from macro 'absl_nonnull'ln
ulla  bl241l  | e#F
da      set| f                      ^Ii
nnet TaobBsulf_fneorn(niunltIn file included from l3s2/s2measures.cc 2:__18Nt:
o In file included from in../src/s2/s2measures.hn,:u 24lc:
lhIn file included from 
a../src/s2/s2point.h      r:*| 27                      ^:
a
In file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :b29u:
fIn file included from f/usr/local/clang/include/absl/strings/cord.he:r94):

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                                    ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::1091241::2622::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

   2411091 |  | # dIn file included from  es2/s2memory_tracker.ccbf:oi18on:
leIn file included from   ../src/s2/s2memory_tracker.hWa:ab28is:
tlIn file included from C_../src/s2/s2error.hno:om29mn:
onIn file included from nu/usr/local/clang/include/absl/status/status.h(l:Ml67 u:
_tIn file included from Ne/usr/local/clang/include/absl/status/internal/status_internal.hox:*n29 n:
au/usr/local/clang/include/absl/strings/cord.hbl:sl1672l
:_      41n| o:                     ^n n
warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l mu t1672e | xi,n
l      i| n                         ^e
 v/usr/local/clang/include/absl/base/nullability.ho:i241d: 22C:o rnote: dexpanded from macro 'absl_nonnull':
:A  d241v | a#ndceef(iCnhea raIbtselr_antoonrn*u lalb s_lN_onnonnunlull
l       | i                     ^t
, size_t n_bIn file included from ys2/s2max_distance_targets.cct:e28s:
)In file included from  In file included from ../src/s2/s2furthest_edge_query.h{s2/s2measures.cc
::      3318| :
:
                                        ^In file included from In file included from 
../src/s2/s2closest_edge_query_base.h../src/s2/s2measures.h::/usr/local/clang/include/absl/base/nullability.h3224::
:
241In file included from In file included from :/usr/local/clang/include/absl/container/btree_set.h../src/s2/s2point.h22:::6527 :
:
note: In file included from In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2coder.h
::  7023241:
:
 | In file included from In file included from #/usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/status/status.hd::e19867f:
:
iIn file included from In file included from n/usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/status/internal/status_internal.he:: 11629a:
:
bIn file included from In file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/strings/cord.hl::_2394n:
:
oIn file included from n/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u:l19931l::
 5/usr/local/clang/include/absl/synchronization/mutex.h_::N 1093o:nwarning: 46'diagnose_if' is a clang extension [-Wgcc-compat]n:u
 l  warning: l199type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 | 
        |                        ^1093 
 | A B SvLo_iIdN TREeRmNoAvLe_(NbEaEsDe__MiInNt_eSrInZaEl(:b:uPfefreTrh,r ekaFdaSsytnTcohB*u fafbesrlS_inzoen)n;u
l      l|      ^s
);
/usr/local/clang/include/absl/base/macros.h      :| 251                                             ^:
18: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'241
:22:   note: 251expanded from macro 'absl_nonnull' | 
    _241_ | a#tdterfiibnuet ea_b_s(l(_dnioangnnuolsle __iNfo(n_n_ubluli
l      t| i                     ^n
_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28In file included from :
s2/s2measures.ccIn file included from :../src/s2/s2furthest_edge_query.h18::
33In file included from :
../src/s2/s2measures.hIn file included from :../src/s2/s2closest_edge_query_base.h24::
32In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h27::
65In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h23::
70In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h67::
198In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h29::
116In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h94::
23In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/strings/numbers.h::31200:
:/usr/local/clang/include/absl/synchronization/mutex.h54::1109 :warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
200 | ch a1109r | *   aebxspll_incointn uMlult eFxaLsotcIknMtaTyobBeu(fMfuetre(xu*i natb32s_lt_ nnu,l lcahbalre*  maub)s
l      _| n                                 ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l257 :o23u:t _note: sexpanded from macro 'absl_nullable't
r)  
257       | | #                                                     ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef i_nNeu lalbasbll_en
o      n| n                      ^u
ll _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: In file included from warning: s2/s2max_distance_targets.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2furthest_edge_query.h: 331117:
 | In file included from  ../src/s2/s2closest_edge_query_base.h :e32x:
pIn file included from l/usr/local/clang/include/absl/container/btree_set.hi:c65i:
tIn file included from  /usr/local/clang/include/absl/container/internal/btree.hM:u70t:
eIn file included from x/usr/local/clang/include/absl/container/internal/layout.hL:o198c:
kIn file included from M/usr/local/clang/include/absl/strings/str_cat.ha:y116b:
eIn file included from (/usr/local/clang/include/absl/strings/internal/stringify_sink.hM:u23t:
e/usr/local/clang/include/absl/strings/numbers.hx:*201 :a5b:s lwarning: _'diagnose_if' is a clang extension [-Wgcc-compat]n
ull  a201b | l e   m uA,B ScLo_nIsNtT ECRoNnAdLi_tNiEoEnD&_ McIoNn_dS)I
Z      E| (                                 ^o
ut/usr/local/clang/include/absl/base/nullability.h_:s257t:r23,:  knote: Fexpanded from macro 'absl_nullable'a
st  T257o | B#udfeffeirnSei zaeb)s;l
_      n| u    ^l
la/usr/local/clang/include/absl/base/macros.hb:l251e: 18_:N unote: lexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'l
abl  e251
 |        |                        ^_
_attribute__((diagnose_if(__builtin_object_In file included from ss2/s2measures.cci:z18e:
(In file included from O../src/s2/s2measures.hb:j24,:
 In file included from 0../src/s2/s2point.h): 27<:
 In file included from N../src/s2/s2coder.h,: 23\:

In file included from       /usr/local/clang/include/absl/status/status.h| :                 ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2max_distance_targets.cc1132::2810:
:In file included from  ../src/s2/s2furthest_edge_query.h:warning: 33type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2closest_edge_query_base.h: 321132:
 | In file included from  /usr/local/clang/include/absl/container/btree_set.h :M65u:
tIn file included from e/usr/local/clang/include/absl/container/internal/btree.hx:*70 :
aIn file included from b/usr/local/clang/include/absl/container/internal/layout.hs:l198_:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116a:
bIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23c:
o/usr/local/clang/include/absl/strings/numbers.hn:s202t: 7m:u _warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |          ^
  202 | /usr/local/clang/include/absl/base/nullability.hc:h257a:r23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli nFea satbIsnlt_TnouBlulfafbelre( i_nNtu6l4l_atb lie,
       c| h                      ^a
r* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2measures.cco:n18n:
uIn file included from l../src/s2/s2measures.hl: 24_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABIn file included from Ss2/s2max_distance_targets.ccL:_28E:
XIn file included from C../src/s2/s2furthest_edge_query.hL:U33S:
IIn file included from V../src/s2/s2closest_edge_query_base.hE:_32L:
OIn file included from C/usr/local/clang/include/absl/container/btree_set.hK:_65F:
UIn file included from N/usr/local/clang/include/absl/container/internal/btree.hC:T70I:
OIn file included from N/usr/local/clang/include/absl/container/internal/layout.h(:m198u:
)In file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116      ^~~~:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NE/usr/local/clang/include/absl/synchronization/mutex.hE:D1153_:M39I:N _warning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
ZE( b1153u | f f eerx,p lkiFcaistt TRoeBluefafsearbSliezMeu)t;e
x      L| o    ^c
k(/usr/local/clang/include/absl/base/macros.hM:u251t:e18x:*  note: aexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'b
sl_  n251o | n n u_l_la tmtur)i
b      u| t                                      ^e
__/usr/local/clang/include/absl/base/nullability.h(:(241d:i22a:g nnote: oexpanded from macro 'absl_nonnull's
e_  i241f | (#_d_ebfuiinlet ianb_solb_jneocntn_uslilz e_(NOobnjn,u l0l)
       <|                       ^N
, \
      |                  ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:In file included from 198s2/s2measures.cc:
:In file included from 18/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/s2measures.h:
:In file included from 24/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/s2point.h:
:/usr/local/clang/include/absl/strings/numbers.h27::
204In file included from :../src/s2/s2coder.h7::23 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h
:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h204: | 29c:
hIn file included from a/usr/local/clang/include/absl/strings/cord.hr:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n1158n:u53l:l  warning: F'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
stIn t1158T | o B u f f e rM(uutienxt&6 4m_ut  AiB,S Lc_hIaNrT*E RaNbAsLl__AnToTnRnIuBlUlT Eb_uCfAfPeTrU)R
E      D| _      ^B
Y(/usr/local/clang/include/absl/base/nullability.ht:h241i:s22):, 
note:       expanded from macro 'absl_nonnull'| 
                                                    ^~~~
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2max_distance_targets.cc1166: | 28 :
 In file included from e../src/s2/s2furthest_edge_query.hx:p33l:
iIn file included from c../src/s2/s2closest_edge_query_base.hi:t32 :
RIn file included from e/usr/local/clang/include/absl/container/btree_set.hl:e65a:
sIn file included from a/usr/local/clang/include/absl/container/internal/btree.hb:l70e:
MIn file included from u/usr/local/clang/include/absl/container/internal/layout.ht:e198x:
LIn file included from o/usr/local/clang/include/absl/strings/str_cat.hc:k116(:
MIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.ht:e23x:
*/usr/local/clang/include/absl/strings/numbers.h :a204b:s54l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l204  | mcuh,a rc*o nasbts lC_onnodnintuiloln &F acsotnIdn)t
T      o| B                                      ^u
ff/usr/local/clang/include/absl/base/nullability.he:r241(:u22i:n tnote: 6expanded from macro 'absl_nonnull'4
_t   241i | ,# dcehfairn*e  aabbssll__nnoonnnnuullll  b_uNfofnenru)l
l      
|                                                            ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2max_distance_targets.cc
:28:
 In file included from 1179../src/s2/s2furthest_edge_query.h | : 33 :
MIn file included from u../src/s2/s2closest_edge_query_base.ht:e32x:
*In file included from  /usr/local/clang/include/absl/container/btree_set.ha:b65s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:u70l:
lIn file included from a/usr/local/clang/include/absl/container/internal/layout.hb:l198e:
 In file included from m/usr/local/clang/include/absl/strings/str_cat.hu:_116;:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :         ^23
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/base/nullability.h::205257::523::  warning: note: 'diagnose_if' is a clang extension [-Wgcc-compat]expanded from macro 'absl_nullable'

    257205 |  | # d e f iAnBeS La_bIsNlT_EnRuNlAlLa_bNlEeE D__NMuIlNl_aSbIlZeE
(      b| u                      ^f
fer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from In file included from ../src/s2/s2measures.hs2/s2max_distance_targets.cc::2428:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2furthest_edge_query.h::2733:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2closest_edge_query_base.h::2332:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/btree_set.h::6765:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/btree.h::2970:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/layout.h::94198:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/strings/str_cat.h::31116:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::121223::
52:/usr/local/clang/include/absl/strings/numbers.h :warning: 207type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
5: warning:  'diagnose_if' is a clang extension [-Wgcc-compat]1212
 | bo  o207l |   C o n dAiBtSiLo_nI:N:TCEaRsNtAALn_dNCEaElDl_MMeItNh_oSdI(ZcEo(nbsutf fCeorn,d iktFiaosnt*T oaBbusflf_enro1n2n8uSlilz ec)); 
{      
|           ^| 
                                                   ^
/usr/local/clang/include/absl/base/macros.h:251/usr/local/clang/include/absl/base/nullability.h::18241:: 22note: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
note: expanded from macro 'absl_nonnull'
  251 |    241  | _#_daetftirnieb uatbes_l__(n(odninauglnlo s_eN_oinfn(u_l_lb
u      i| l                     ^t
in_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116In file included from :
s2/s2measures.ccIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h18::
23In file included from :
../src/s2/s2measures.h/usr/local/clang/include/absl/strings/numbers.h::24208:
:In file included from 7../src/s2/s2point.h:: 27:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h
:23:
In file included from   /usr/local/clang/include/absl/status/status.h208: | 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 1221F:a54s:t Iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ToBu f1221f | ebro(ouli nCto1n2d8i tii,o nc:h:aCra*s taAbnsdlC_anlolnFnuunlclt ibounf(fceorn)s
t       | C      ^o
nd/usr/local/clang/include/absl/base/nullability.hi:t241i:o22n:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ec )a b{s
l      _| n                                                     ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_In file included from ns2/s2max_distance_targets.cco:n28n:
uIn file included from l../src/s2/s2furthest_edge_query.hl: 33_:
NIn file included from o../src/s2/s2closest_edge_query_base.hn:n32u:
lIn file included from l/usr/local/clang/include/absl/container/btree_set.h
:      65| :
                     ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, chIn file included from as2/s2measures.ccr:*18 :
aIn file included from b../src/s2/s2measures.hs:l24_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :b23u:
fIn file included from f/usr/local/clang/include/absl/status/status.he:r67):

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                                                    ^29
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.h
:1230  :24112 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine  1230a | b s l _ nboononlu l(l* a_bNsoln_nnuolnln
u      l|                      ^l
 func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2max_distance_targets.cc#:d28e:
fIn file included from i../src/s2/s2furthest_edge_query.hn:e33 :
aIn file included from b../src/s2/s2closest_edge_query_base.hs:l32_:
nIn file included from o/usr/local/clang/include/absl/container/btree_set.hn:n65u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :_70N:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209In file included from :s2/s2measures.cc5::18 :
warning: In file included from 'diagnose_if' is a clang extension [-Wgcc-compat]../src/s2/s2measures.h
:24:
In file included from   ../src/s2/s2point.h209: | 27 :
 In file included from  ../src/s2/s2coder.h :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:I67N:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hR:N29A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hN:E94E:
DIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hM:I31N:
_/usr/local/clang/include/absl/synchronization/mutex.hS:I1230Z:E34(:b uwarning: ftype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]f
er,  1230k | F a s t TbooBoulf f(e*ra1b2s8lS_inzoen)n;u
l      l|      ^f
un/usr/local/clang/include/absl/base/macros.hc:)251(:T18*:  anote: bexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE's
l_n  u251l | l a b_i_laitttyr_iubnuktneo_w_n()(,d
i      a| g                                 ^n
os/usr/local/clang/include/absl/base/nullability.he:_289i:f34(:_ _note: bexpanded from macro 'absl_nullability_unknown'u
il  t289i | n#_doebfjiencet _asbiszle_(nOubljl,a b0i)l i<t yN_,u n\k
n      o| w                 ^n
 _Null_unspecifieIn file included from ds2/s2max_distance_targets.cc
:      28| :
                                 ^In file included from 
../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:In file included from 198s2/s2measures.cc:
:In file included from 18/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/s2measures.h:
:In file included from 24/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/s2point.h:
:/usr/local/clang/include/absl/strings/numbers.h27::
215In file included from :../src/s2/s2coder.h7::23 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 215/usr/local/clang/include/absl/status/internal/status_internal.h | :c29h:
aIn file included from r/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n1231u:l8l:  Fwarning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s
tI n1231t | T o B u fTf*e ra(bisnlt__ntuylplea bii,l
i      t| y      ^_
un/usr/local/clang/include/absl/base/nullability.hk:n241o:w22n:  anote: rexpanded from macro 'absl_nonnull'g
)
        241|  |        ^#
de/usr/local/clang/include/absl/base/nullability.hf:i289n:e34 :a bnote: sexpanded from macro 'absl_nullability_unknown'l
_n  o289n | n#udlelf i_nNeo nanbuslll_
n      u| l                     ^l
ability_In file included from us2/s2max_distance_targets.ccn:k28n:
oIn file included from w../src/s2/s2furthest_edge_query.hn: 33In file included from _:
s2/s2memory_tracker.ccNIn file included from :u../src/s2/s2closest_edge_query_base.h18l::
l32In file included from _:
../src/s2/s2memory_tracker.huIn file included from :n/usr/local/clang/include/absl/container/btree_set.h28s::
p65In file included from e:
../src/s2/s2error.hcIn file included from :i/usr/local/clang/include/absl/container/internal/btree.h29f::
i70In file included from e:
/usr/local/clang/include/absl/status/status.hdIn file included from :
/usr/local/clang/include/absl/container/internal/layout.h67      ::
| 198In file included from                                  ^:
/usr/local/clang/include/absl/status/internal/status_internal.h
In file included from :/usr/local/clang/include/absl/strings/str_cat.h33::
116:
/usr/local/clang/include/absl/types/source_location.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h113::2319:
:/usr/local/clang/include/absl/strings/numbers.h :warning: 216type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
49: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]113
 |     216  |       c o n s t   c h a r *   a b s l _ n o n n u l l   f In file included from i s2/s2measures.ccl :e 18 _ :
n In file included from a ../src/s2/s2measures.h m:e 24  :
= In file included from   ../src/s2/s2point.h _:c_27hb:
uaIn file included from ir../src/s2/s2coder.h*l:t 23ai:
bnIn file included from s_/usr/local/clang/include/absl/status/status.hlF:_I67Ln:
EoIn file included from n(/usr/local/clang/include/absl/status/internal/status_internal.hn)u:)l29l :
{ In file included from 
b/usr/local/clang/include/absl/strings/cord.hu      :f| 94f                  ^:
e
In file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.h):/usr/local/clang/include/absl/base/nullability.h
31:      :
241| :/usr/local/clang/include/absl/synchronization/mutex.h                                                ^22:
:1241 :/usr/local/clang/include/absl/base/nullability.hnote: 12:expanded from macro 'absl_nonnull':241
 :warning: 22  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:241
  | note: # expanded from macro 'absl_nonnull'd1241e
 | f i   n 241e   | ba#obodslelf i_(nn*eoan bnasbulsl_lln_ on_nNononunnlnulu llfll u
_n      Nc| )o                     ^(n
Tn*u lalb
s      l| _                     ^n
ullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2memory_tracker.cc22::18 :
In file included from note: ../src/s2/s2memory_tracker.hexpanded from macro 'absl_nonnull':
28:
In file included from   ../src/s2/s2error.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b33s:
l/usr/local/clang/include/absl/types/source_location.h_:n133o:In file included from n25ns2/s2max_distance_targets.cc:u: l28warning: l:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] In file included from 
_../src/s2/s2furthest_edge_query.hN:o  n33133n:
 | u In file included from l l../src/s2/s2closest_edge_query_base.hc
o:      n32| s:
                     ^tIn file included from 
e/usr/local/clang/include/absl/container/btree_set.hx:p65r:
In file included from  In file included from s2/s2measures.ccc/usr/local/clang/include/absl/container/internal/btree.h:o:18n70:
s:
In file included from tIn file included from ../src/s2/s2measures.h /usr/local/clang/include/absl/container/internal/layout.h:c:24h198:
a:
In file included from rIn file included from ../src/s2/s2point.h*/usr/local/clang/include/absl/strings/str_cat.h: :27a116:
b:
In file included from sIn file included from ../src/s2/s2coder.hl/usr/local/clang/include/absl/strings/internal/stringify_sink.h:_:23n23:
o:
In file included from n/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/status/status.hn::u21767l::
l5In file included from  :/usr/local/clang/include/absl/status/internal/status_internal.hf :i29lwarning: :
'diagnose_if' is a clang extension [-Wgcc-compat]eIn file included from _
/usr/local/clang/include/absl/strings/cord.hn:a94m  :
e217In file included from ( | /usr/local/clang/include/absl/strings/internal/cordz_info.h) :  31 c:
 o/usr/local/clang/include/absl/synchronization/mutex.hAn:BsS1241tL: _34nI:oN eTwarning: xtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]Ec
eRpN AtL1241 _ | { N
 E       E| D                         ^_b
MoI/usr/local/clang/include/absl/base/nullability.holN: _241(S:*I22aZ:bE (note: s
expanded from macro 'absl_nonnull'l      
_| n      ^o241n
 | n#ud/usr/local/clang/include/absl/base/macros.hlel:f i251fnu:en 18ca:)b( sTlnote: *expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'_ n
aobn  snl251u_l | n lu  l__lN_aobantintluirlitlby
u_t      ue| _n                     ^_k
(n(odwina)g,n
o      s| e                                 ^_
In file included from is2/s2memory_tracker.cc/usr/local/clang/include/absl/base/nullability.hf::(18_289_:
:bIn file included from 34u../src/s2/s2memory_tracker.h:i: l28note: t:
expanded from macro 'absl_nullability_unknown'iIn file included from 
n../src/s2/s2error.h_:  o29b289:
j | In file included from e#/usr/local/clang/include/absl/status/status.hcdt:_e67fs:
iiIn file included from zne/usr/local/clang/include/absl/status/internal/status_internal.he(:O 33ab:
b/usr/local/clang/include/absl/types/source_location.hjs:l,142_ :n025)u:l  l<warning: a type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bN
,i l  i\142t
 | y       _ | uc                 ^nok
nnsotwenx p_rN ucloln_sutn scpheacri*f iaebds
l      _| n                                 ^o
nnull function_name() conIn file included from ss2/s2measures.cct: 18n:
oIn file included from e../src/s2/s2measures.hx:c24e:
pIn file included from t../src/s2/s2point.h :{27
:
      In file included from | ../src/s2/s2coder.h                        ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1242e: 44a:b swarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
non n1242u | l l   _ Ntoynpneunlalm
e       | a                     ^b
sl::type_identity<T>:In file included from :s2/s2memory_tracker.cct:y18p:
eIn file included from *../src/s2/s2memory_tracker.h :a28b:
sIn file included from l../src/s2/s2error.h_:n29u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67i:
lIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.ht:y33_:
u/usr/local/clang/include/absl/types/source_location.hn:k150n:o40w:n 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                           ^

/usr/local/clang/include/absl/base/nullability.h  :150289 | : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # d e f i n e   a b s l _ n u l lcaobnislti tcyh_aurn*k naobwsnl __nNounlnlu_luln sfpielcei_fniaemde
)      
|                                        ^| 
                                       ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2max_distance_targets.cc::24128::
22In file included from :../src/s2/s2furthest_edge_query.h :note: 33expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2closest_edge_query_base.h  :24132 | :
#In file included from d/usr/local/clang/include/absl/container/btree_set.he:f65i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :a70b:
In file included from sIn file included from s2/s2measures.ccl/usr/local/clang/include/absl/container/internal/layout.h:_:18n198:
o:
In file included from nIn file included from ../src/s2/s2measures.hn/usr/local/clang/include/absl/strings/str_cat.h:u:24l116:
l:
In file included from  In file included from ../src/s2/s2point.h_/usr/local/clang/include/absl/strings/internal/stringify_sink.h:N:27o23:
n:
In file included from n../src/s2/s2coder.h/usr/local/clang/include/absl/strings/numbers.hu:l:23l247:

:In file included from       47/usr/local/clang/include/absl/status/status.h| ::                     ^ 67
warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h  :24794 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1249 : 8 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    In file included from 1249 s2/s2memory_tracker.cc |  :  18  :
  In file included from   ../src/s2/s2memory_tracker.hT :* 28  :
 aIn file included from  b../src/s2/s2error.h s:l 29_ :
n In file included from  o /usr/local/clang/include/absl/status/status.hn :ni67:
unIn file included from lt/usr/local/clang/include/absl/status/internal/status_internal.hl_: t33oy:
bp/usr/local/clang/include/absl/types/source_location.hej*: e165ca:tb15,s:
l       _warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n       ^
o
n  n165u/usr/local/clang/include/absl/base/nullability.h | l: l241  :co22ou:nt s,note: texpanded from macro 'absl_nonnull'  
cihn  ta241r  | *#b daaebfssilen_)en  oan{bns
ul      l_| ln                                               ^ofn
inluel/usr/local/clang/include/absl/base/nullability.h_l:n a241_mN:eo_22n n:=u l "lnote: "expanded from macro 'absl_nonnull'
;
      
|                              ^| 241
              ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bIn file included from expanded from macro 'absl_nonnull'ss2/s2measures.cc
l:  _18241n:
 | oIn file included from #n../src/s2/s2measures.hdn:eu24lf:
liIn file included from  n../src/s2/s2point.he_: N27ao:
bnIn file included from sn../src/s2/s2coder.hul:_l23nl:
o
In file included from n      /usr/local/clang/include/absl/status/status.hn| :u                     ^67l
:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                     ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_iIn file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* abIn file included from ss2/s2memory_tracker.ccl:_18n:
oIn file included from n../src/s2/s2memory_tracker.hn:u28l:
lIn file included from  ../src/s2/s2error.ho:u29t:
)In file included from  /usr/local/clang/include/absl/status/status.h{:
67      :
| /usr/local/clang/include/absl/status/internal/status_internal.h                                                           ^:
119:14:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'119
 |     241S | t#adteufsiRneep *a basbls_ln_onnonnunlull l_ NColnonnuel(l

            | |              ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_dneonntniutlyl< TC>l:o:nteyApned:U:n*r eafb(s
l      _| n             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22m:e tnote: hexpanded from macro 'absl_nonnull'o
d)  (241) | )#
d      e| f                                          ^i
ne ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _In file included from Ns2/s2max_distance_targets.cco:n28n:
uIn file included from l../src/s2/s2furthest_edge_query.hl:
33In file included from       :
s2/s2memory_tracker.cc| In file included from :                     ^../src/s2/s2closest_edge_query_base.h18
::
32In file included from :
../src/s2/s2memory_tracker.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h28::
65In file included from :
../src/s2/s2error.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h29:70:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/layout.h::67198:
:
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h128::11614:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
/usr/local/clang/include/absl/strings/numbers.h:  330128: | 41 :  Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tusR  e330p | *   a b s l _ n o n n In file included from u s2/s2measures.cc l: l18  :
C In file included from  l../src/s2/s2measures.ho :n 24e :
A In file included from n ../src/s2/s2point.hd :U 27n :
rIn file included from  e../src/s2/s2coder.hf :( 23) :
  In file included from ci/usr/local/clang/include/absl/status/status.hon:n67st:
t_In file included from t;/usr/local/clang/include/absl/status/internal/status_internal.hy
:p      29e| *:
             ^ In file included from 
a/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.hb:s:l94241_:
:nIn file included from 22o/usr/local/clang/include/absl/strings/internal/cordz_info.h:n:n 31unote: :
expanded from macro 'absl_nonnull'l
l/usr/local/clang/include/absl/synchronization/mutex.h   :241o1259u | t:)# 14d{:e
 f      warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| n
e                                        ^ 
 a1259b | s/usr/local/clang/include/absl/base/nullability.h l :_ n241 oc:non22nus:ltl   note: T_*expanded from macro 'absl_nonnull'N 
oanb  nsu241ll_ | ln#
od      ne| n                     ^fu
liln eo bajbesclt_,n
o      n| n             ^u
ll /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2max_distance_targets.ccs2/s2measures.cc::2818:
:
In file included from In file included from ../src/s2/s2furthest_edge_query.h../src/s2/s2measures.h::3324:
:
In file included from In file included from ../src/s2/s2closest_edge_query_base.h../src/s2/s2point.h::3227:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h../src/s2/s2coder.h::6523:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/status/status.h::7067:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/status/internal/status_internal.h::19829:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/strings/cord.h::11694:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2331:
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/synchronization/mutex.h::3351260::5243::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   3351260 |  |          b o o l   ( a b s l : : t y p e _ i d e n t i t y < T > : : t y paeb:s:l*: :aibnstl1_2n8o*n naublsll _mneotnhnoudl)l( )o
u      t| )                                          ^ 
{
/usr/local/clang/include/absl/base/nullability.h      :| 241                                                   ^:
22:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'absl_nonnull':
22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2measures.cc:18In file included from :
s2/s2max_distance_targets.ccIn file included from :../src/s2/s2measures.h28::
24In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :../src/s2/s2point.h33::
27In file included from :
../src/s2/s2closest_edge_query_base.hIn file included from :../src/s2/s2coder.h32::
23In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/status/status.h65::
67In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h70::
29In file included from :
/usr/local/clang/include/absl/container/internal/layout.hIn file included from :/usr/local/clang/include/absl/strings/cord.h198::
94In file included from :
/usr/local/clang/include/absl/strings/str_cat.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h116::
31In file included from :
/usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/synchronization/mutex.h::231279:
:/usr/local/clang/include/absl/strings/numbers.h35::340 :warning: 53type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1279 | vo  i340d |   R e g i s t e r M u t e x P r o f i l e r ( v o i d   ( * a b s l _ n o nanbuslll: :funi)n(ti1n2t86*4 _atb swla_into_ncnyucllle so)u)t;)
       {| 
                                  ^      
|                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisteIn file included from rs2/s2max_distance_targets.ccM:u28t:
eIn file included from x../src/s2/s2furthest_edge_query.hT:r33a:
cIn file included from e../src/s2/s2closest_edge_query_base.hr:(32v:
oIn file included from i/usr/local/clang/include/absl/container/btree_set.hd: 65(:
*In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s70l:
_In file included from n/usr/local/clang/include/absl/container/internal/layout.ho:n198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl: 116f:
nIn file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h(:c23o:
n/usr/local/clang/include/absl/strings/numbers.hs:t346 :c44h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l346_ | n o n n u l l   m s g , 
        |                                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dienfti_ntey paeb*s la_bnsoln_nnuolnln u_lNlo nonuutl)l 
{      
|                            ^| 
                                           ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2measures.cc241::1822:
:In file included from  ../src/s2/s2measures.hnote: :expanded from macro 'absl_nonnull'24
:
In file included from   ../src/s2/s2point.h241: | 27#:
dIn file included from e../src/s2/s2coder.hf:i23n:
eIn file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1293
:      62| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_In file included from ns2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                             o n n u l l   f n ) ( c oanbsstl :c:huairn*t 1a2b8s*l _anbosnln_unloln nmuslgl, 
o      u| t                                                             ^)
 {
      /usr/local/clang/include/absl/base/nullability.h| :                                                       ^241
:22:/usr/local/clang/include/absl/base/nullability.h :note: 241expanded from macro 'absl_nonnull':
22:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { rIn file included from es2/s2measures.cct:u18r:
nIn file included from  ../src/s2/s2measures.hp:i24e:
cIn file included from e../src/s2/s2point.h_:.27d:
aIn file included from t../src/s2/s2coder.ha:(23):
;In file included from  /usr/local/clang/include/absl/status/status.h}:
67      :
| In file included from               ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.h257::10923::53 :note:  expanded from macro 'absl_nullable'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #de  f109i | nveo iadb sClo_pnyuClolradbTloeS t_rNiuIn file included from nls2/s2memory_tracker.ccgl:(a18bc:
olIn file included from ne../src/s2/s2memory_tracker.hs
:t      28 | :
C                      ^In file included from o
../src/s2/s2error.hr:d29&:
 s/usr/local/clang/include/absl/status/status.hr:c725,: 38s:t dwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
stri  n725g | *   asbtsalt_inco nsntualtlu sd_sitn)t;e
r      n| a                                                    ^l
::St/usr/local/clang/include/absl/base/nullability.ha:t241u:s22R:e pnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  aPbrselp_anroenTnouMlold i_fNyo(n
n      u| l                                     ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2measures.ccN:o18n:
nIn file included from u../src/s2/s2measures.hl:l24
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToIn file included from Ss2/s2memory_tracker.cct:r18i:
nIn file included from g../src/s2/s2memory_tracker.h(:c28o:
nIn file included from s../src/s2/s2error.ht: 29C:
o/usr/local/clang/include/absl/status/status.hr:d732&: 29s:r cwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
std  :732: | s t rsitnagt*i ca bcsoln_snto nsntudl:l: sdtsrti)n;g
*       | a                                                      ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
Em  p241t | y#Sdterfiinnge( )a;b
s      l| _                            ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:28:
In file included from ../src/s2/s2error.h:29:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:In file included from 24s2/s2max_distance_targets.cc:
:In file included from 28../src/s2/s2point.h:
:In file included from 27../src/s2/s2furthest_edge_query.h:
:In file included from 33../src/s2/s2coder.h:
:In file included from 23../src/s2/s2closest_edge_query_base.h:
:In file included from 32/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/btree_set.h:
:In file included from 65/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/container/internal/btree.h:
:/usr/local/clang/include/absl/strings/cord.h70::
730In file included from :/usr/local/clang/include/absl/container/internal/layout.h36::198 :
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/str_cat.h
:501:32:   730 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  exp  l501i | cvioti dC hAaprpReanndgPei(eccoenss(ts tCdo:r:ds*t raibnsgl*_ naobnsnlu_lnlo ncnourldl)  d:e scto,r
d      _| (                               ^c
ord)/usr/local/clang/include/absl/base/nullability.h :{241}:
22      :|                                     ^
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2max_distance_targets.ccn:u28l:
lIn file included from a../src/s2/s2furthest_edge_query.hb:l33e:
 In file included from _../src/s2/s2closest_edge_query_base.hN:u32l:
lIn file included from a/usr/local/clang/include/absl/container/btree_set.hb:l65e:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                      ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline voIn file included from is2/s2measures.ccd: 18S:
tIn file included from r../src/s2/s2measures.hA:p24p:
eIn file included from n../src/s2/s2point.hd:(27s:
tIn file included from In file included from d../src/s2/s2coder.hs2/s2lax_polyline_shape.cc::::2318s:
:
tIn file included from In file included from r/usr/local/clang/include/absl/status/status.h../src/s2/s2lax_polyline_shape.hi::n6732g:
:
*In file included from In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2polyline.ha::b2934s:
:
l/usr/local/clang/include/absl/strings/cord.hIn file included from _:../src/s2/s2builder.hn929:o:36n26:
n:In file included from u ../src/s2/mutable_s2shape_index.hlwarning: :ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]30)
:
 In file included from {/usr/local/clang/include/absl/container/btree_map.h  }:
92966       | :
 | In file included from                                    ^ /usr/local/clang/include/absl/container/internal/btree.h
 : /usr/local/clang/include/absl/base/nullability.h70v::
o241In file included from i:/usr/local/clang/include/absl/container/internal/layout.hd22: :198S :
wnote: In file included from expanded from macro 'absl_nonnull'a/usr/local/clang/include/absl/strings/str_cat.h
p:  (116241I:
 | nIn file included from #l/usr/local/clang/include/absl/strings/internal/stringify_sink.hdi:en23fe:
iRn/usr/local/clang/include/absl/strings/numbers.heep: *66a :ba41sb:ls _lwarning: n_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]on
nonn   nu66ul | l  l _ lN o  n rn uh l sl 
)       ; | 
                      ^       
 |                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    i241n | In file included from t#s2/s2max_distance_targets.cc_d:te28yf:
ipnIn file included from ee../src/s2/s2furthest_edge_query.h *a: b33sal:
b_In file included from sn../src/s2/s2closest_edge_query_base.holn:_n32unl:
lo In file included from _nN/usr/local/clang/include/absl/container/btree_set.hno:un65nl:
luIn file included from l l/usr/local/clang/include/absl/container/internal/btree.ho
:u      70t| :
)                     ^In file included from ;
/usr/local/clang/include/absl/container/internal/layout.h
:      198| :
                                        ^/usr/local/clang/include/absl/strings/str_cat.h
:636:29:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
636 |   v241o | i#dIn file included from d s2/s2measures.cceSf:tir18nAe:
p In file included from pa../src/s2/s2measures.hebn:sdl24(_s:
ntodn:n:usltlr i_nNgo*n naublsll
_      n| o                     ^n
null dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2lax_polyline_shape.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2lax_polyline_shape.h241: | 32#:
dIn file included from e../src/s2/s2polyline.hf:i34n:
eIn file included from  ../src/s2/s2builder.ha:b36s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:o30n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:In file included from l66../src/s2/s2point.h :
_:In file included from N27/usr/local/clang/include/absl/container/internal/btree.ho:
:nIn file included from 70n:
u../src/s2/s2coder.hIn file included from l:/usr/local/clang/include/absl/container/internal/layout.hl23:
:
198      In file included from :
| /usr/local/clang/include/absl/status/status.hIn file included from                      ^:/usr/local/clang/include/absl/strings/str_cat.h
67::
116In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h29::
23:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/numbers.h::93277::1761::  In file included from warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2max_distance_targets.cc

:28:
In file included from      ../src/s2/s2furthest_edge_query.h93277: |  |  33[ :
[ In file included from n ../src/s2/s2closest_edge_query_base.hoc:do32in:
ssIn file included from ct/usr/local/clang/include/absl/container/btree_set.ha :rc65dh:
]aIn file included from ]r/usr/local/clang/include/absl/container/internal/btree.h *:b 70oa:
obIn file included from sl/usr/local/clang/include/absl/container/internal/layout.hl :_S198in:
mu/usr/local/clang/include/absl/strings/str_cat.hpl:ll637ea:Ab29tl:oe f warning: (dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aa
tbas  l(637): |  :vsoctirdoi nnSgts_trvA;i
pep      we|  n                ^sdt
(rs,/usr/local/clang/include/absl/base/nullability.ht :df:257l:o:sat23tr*:i  nnote: aexpanded from macro 'absl_nullable'gb*
s la  _bn257sol | n#_nnduolenlnf uiolnulet  )da;eb
ss      tl| ,                                                            ^_ 
cno/usr/local/clang/include/absl/base/nullability.hun:sl241tl: a22Ab:ll penote: hexpanded from macro 'absl_nonnull' a
N_u  mN241u& |  l#adl,ea
fb      il| ne                            ^e

       a/usr/local/clang/include/absl/base/nullability.h| b:                      ^s241l
:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
In file included from        as2/s2measures.cc| b:                     ^s18
l:
_In file included from n../src/s2/s2measures.ho:n24n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from In file included from l/usr/local/clang/include/absl/status/status.hs2/s2lax_polyline_shape.cc
::      6718| :
:
                     ^In file included from In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2lax_polyline_shape.h::2932:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2polyline.h934::3431:
:In file included from  ../src/s2/s2builder.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]36
In file included from :
s2/s2max_distance_targets.ccIn file included from   :../src/s2/mutable_s2shape_index.h93428: | :
30 In file included from :
 ../src/s2/s2furthest_edge_query.hIn file included from  :/usr/local/clang/include/absl/container/btree_map.h 33:v:
66oIn file included from :
i../src/s2/s2closest_edge_query_base.hIn file included from d:/usr/local/clang/include/absl/container/internal/btree.h 32:s:
70eIn file included from t:
_/usr/local/clang/include/absl/container/btree_set.hIn file included from d:/usr/local/clang/include/absl/container/internal/layout.ha65:t:
198aIn file included from :
(/usr/local/clang/include/absl/container/internal/btree.hIn file included from c:/usr/local/clang/include/absl/strings/str_cat.ho70:n:
116sIn file included from :
t/usr/local/clang/include/absl/container/internal/layout.hIn file included from  :/usr/local/clang/include/absl/strings/internal/stringify_sink.hc198:h:
23a/usr/local/clang/include/absl/strings/str_cat.h:
r:/usr/local/clang/include/absl/strings/numbers.h*639: :88a29:b:62s :lwarning:  _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: n
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
l  l639a |    bv88ol | i[ed[  nSodtdariAtspcapa,er ndds]i(]zs tebdo_:o:tls  tSnri)i;mnp
gl*      e A| at                              ^bos
dl(/usr/local/clang/include/absl/base/nullability.h_a:nb257os:nln23:u::l sltnote:  rdexpanded from macro 'absl_nullable'iesntg,_ vcioenws ts tArl,p 
hdao  Nu257ub | ml#&e d*ae ,afb
is      ln_e| n                            ^ o
anb/usr/local/clang/include/absl/base/nullability.hns:ul241l_:ln22 u:ol unote: ltexpanded from macro 'absl_nonnull'a)
b;l  
e241        | | #_                                                             ^dN
euf/usr/local/clang/include/absl/base/nullability.hil:ln241ea: b22al:be s
note: lexpanded from macro 'absl_nonnull'_      
n| o                      ^  n
241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
nuIn file included from ls2/s2measures.ccl: 18_:
NIn file included from o../src/s2/s2measures.hn:n24u:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
In file included from ../src/s2/s2coder.hs2/s2max_distance_targets.cc::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2furthest_edge_query.h::6733:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2closest_edge_query_base.h:In file included from :29s2/s2lax_polyline_shape.cc32:
::
/usr/local/clang/include/absl/strings/cord.h18In file included from ::
/usr/local/clang/include/absl/container/btree_set.h935In file included from ::../src/s2/s2lax_polyline_shape.h6511::
:32In file included from  :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from warning: :../src/s2/s2polyline.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]70:
:
34In file included from :
/usr/local/clang/include/absl/container/internal/layout.h  In file included from :935../src/s2/s2builder.h198 | ::
 /usr/local/clang/include/absl/strings/str_cat.h36 ::
 641In file included from  :../src/s2/mutable_s2shape_index.hc29:h:30a :
rwarning: In file included from *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h 
:a66b:
  sIn file included from l641/usr/local/clang/include/absl/container/internal/btree.h_ | :vn70oo:
inIn file included from dn/usr/local/clang/include/absl/container/internal/layout.h u:Sl198tl:
r In file included from As/usr/local/clang/include/absl/strings/str_cat.hpe:pt116e_:
dnIn file included from da/usr/local/clang/include/absl/strings/internal/stringify_sink.h(t:sa23t(:
ds/usr/local/clang/include/absl/strings/numbers.h:i::z98se:t_60rt:i  nnwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*)
 ;a b   s 98l/ | _/[ n[Wonnronidutilesl c daadrtedsa]t ], t bocoo onlts htSe iA mlrpeplsheauANtluomtb&
(       aa| b,          ^s
l
      :| /usr/local/clang/include/absl/base/nullability.h:                            ^s:
t241r:/usr/local/clang/include/absl/base/nullability.hi22:n:241g :_note: 22expanded from macro 'absl_nonnull'v:i
 enote:   wexpanded from macro 'absl_nonnull' 241
s |   t#241rd | ,#e fdbeionfoiel n*ea  ababsbsslll___nnnooonnnnnnuuullllll   o_u_NtoN)no;nn
un      lu| ll                                                           ^
l
      
| /usr/local/clang/include/absl/base/nullability.h                           ^:| 
241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2measures.ccIn file included from l:s2/s2max_distance_targets.ccl18: :
28_In file included from :
N../src/s2/s2measures.hIn file included from o:../src/s2/s2furthest_edge_query.hn24:n:
33uIn file included from :
l../src/s2/s2point.hIn file included from l:../src/s2/s2closest_edge_query_base.h
27:      :
32| In file included from :
                     ^../src/s2/s2coder.hIn file included from 
:/usr/local/clang/include/absl/container/btree_set.h23::
65In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h67::
70In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h29::
198/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/strings/str_cat.h937In file included from ::s2/s2lax_polyline_shape.cc64635:::1836 :
:warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] ../src/s2/s2lax_polyline_shape.h
warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32
  :
937In file included from  |   ../src/s2/s2polyline.h 646:  | 34i :
n In file included from al../src/s2/s2builder.hib:ns36el:
 :In file included from v:../src/s2/mutable_s2shape_index.hoc:io30dr:
 dIn file included from S_/usr/local/clang/include/absl/container/btree_map.hit:nrt66Ae:
prIn file included from pn/usr/local/clang/include/absl/container/internal/btree.hea:ln70:d:
(:In file included from sC/usr/local/clang/include/absl/container/internal/layout.hto:dr198:d:
:RIn file included from se/usr/local/clang/include/absl/strings/str_cat.htp:r*116i :
naIn file included from gb/usr/local/clang/include/absl/strings/internal/stringify_sink.h*s: l23a_:
n/usr/local/clang/include/absl/strings/numbers.hub:sl112ll:_a44nb:ol enwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] u
tlrle   e112d( | e) s  t ,  c co on ns s tt ;  A
 l       p|  h                                   ^a N
 u /usr/local/clang/include/absl/base/nullability.hm &:   257a ,: 
 23       :|                                     ^  
note:  expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h 
: 241   : 25722  | :i# ndnote: texpanded from macro 'absl_nonnull'e_f
tiy  np241ee | *#  daaebfbsislnl_en_ oannbnusullll_lna boolnunet u)l_;l
N       u_| Nl                                           ^ol
nan/usr/local/clang/include/absl/base/nullability.hub:ll241le:

22            :| |                       ^                      ^note: 

expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2measures.ccn:n18u:
lIn file included from l../src/s2/s2measures.h :_24N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |    In file included from  s2/s2lax_polyline_shape.cca:b18s:
lIn file included from :../src/s2/s2lax_polyline_shape.h::c32o:
rIn file included from d../src/s2/s2polyline.h_:i34n:
tIn file included from e../src/s2/s2builder.hr:n36a:
lIn file included from :../src/s2/mutable_s2shape_index.h::C30o:
rIn file included from d/usr/local/clang/include/absl/container/btree_map.hR:e66p:
*In file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from _/usr/local/clang/include/absl/container/internal/layout.hn:o198n:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116 :
aIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:t23r:
e/usr/local/clang/include/absl/strings/numbers.he:(116): 55c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
;
      |                                     ^116
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n naublsll
:      :| i                     ^n
t128* absl_nonnull In file included from os2/s2measures.ccu:t18):
;In file included from 
../src/s2/s2measures.h      :| 24                                                      ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
  In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h | :#29d:
e/usr/local/clang/include/absl/strings/cord.hf:i939n:e17 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n939n | u l l   _cNoonnsntu lclh
a      r| *                     ^ 
absl_nonnull as_chars() const;
      |                 ^In file included from 
s2/s2lax_polyline_shape.cc:/usr/local/clang/include/absl/base/nullability.h18::
241In file included from :../src/s2/s2lax_polyline_shape.h22::32 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2polyline.h
:34  :
241In file included from  | ../src/s2/s2builder.h#:d36e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n70u:
lIn file included from l/usr/local/clang/include/absl/container/internal/layout.h :_198N:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hn:u116l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23                     ^:

/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |      In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.h : 24 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 941 : 35 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
::u  i941n | t 1 2 8 *a basbls:l:_cnoorndn_uilnlt eorunta)l;:
:      C| o                                                       ^r
dR/usr/local/clang/include/absl/base/nullability.he:p241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef icnlee aarb(s)l;_
n      o| n                                  ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257_:N23o:n nnote: uexpanded from macro 'absl_nullable'l
l
        257|  |                      ^#
define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: In file included from warning: s2/s2lax_polyline_shape.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from   ../src/s2/s2lax_polyline_shape.h950: | 32 :
 In file included from  ../src/s2/s2polyline.h :C34o:
rIn file included from d../src/s2/s2builder.hR:e36p:
FIn file included from l../src/s2/mutable_s2shape_index.ha:t30*:
 In file included from a/usr/local/clang/include/absl/container/btree_map.hb:s66l:
_In file included from n/usr/local/clang/include/absl/container/internal/btree.ho:n70n:
uIn file included from l/usr/local/clang/include/absl/container/internal/layout.hl: 198M:
aIn file included from k/usr/local/clang/include/absl/strings/str_cat.he:F116l:
aIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.hW:i23t:
h/usr/local/clang/include/absl/strings/numbers.hE:x152t:r37a:C awarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
cit  y152( | sviozied_ tP uetxTtwroaD)i;g
i      t| s                 ^(
ui/usr/local/clang/include/absl/base/nullability.hn:t2413:222_:t  note: iexpanded from macro 'absl_nonnull',
 c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo nbnuufl)l; 
_      N| o                                    ^n
nul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2measures.ccn:u18l:
lIn file included from  ../src/s2/s2measures.h_:N24o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SIn file included from es2/s2lax_polyline_shape.cct:T18r:
eIn file included from e../src/s2/s2lax_polyline_shape.h(:C32o:
rIn file included from d../src/s2/s2polyline.hR:e34p:
*In file included from  ../src/s2/s2builder.ha:b36s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:o30n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66 :
rIn file included from e/usr/local/clang/include/absl/container/internal/btree.hp:,70 :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
 In file included from C/usr/local/clang/include/absl/strings/str_cat.ho:r116d:
zIn file included from U/usr/local/clang/include/absl/strings/internal/stringify_sink.hpIn file included from :ds2/s2memory_tracker.cc23a:t:
18e/usr/local/clang/include/absl/strings/numbers.h:
S:In file included from c156../src/s2/s2memory_tracker.ho::p5528e::
& In file included from  warning: ../src/s2/s2error.hstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:c
29o:
pe  /usr/local/clang/include/absl/status/status.h)156:; | 1031b
o:o      l42|  :                          ^s 
awarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.he
:_241s:t r221031t: | o i8note: n_expanded from macro 'absl_nonnull'lb
ians  ee241 ( | ca#bosdnle:sft:i snstert iaatnbugssl__v_iinenowtne nrtunelalxl :t_:N,So tnaintnuutlsl8R
_et      *p|  *                     ^a b
asbls_ln_onnonnunlull lv aSlIn file included from tus2/s2measures.ccae:t,18u
:
s      In file included from :| ../src/s2/s2measures.h:                                                      ^:R
24e:
pIn file included from T/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.ho::P24127o::
i22In file included from n:../src/s2/s2coder.ht :e23rnote: :
(expanded from macro 'absl_nonnull'In file included from 

/usr/local/clang/include/absl/status/status.h      :  | 67                                         ^241:

 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd/usr/local/clang/include/absl/base/nullability.h:e:29f241i:
n:/usr/local/clang/include/absl/strings/cord.he22: :961a :bnote: 34expanded from macro 'absl_nonnull's:
l   _241nwarning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o#
dnen  fu961il | n le    a_ Nvobonsniuld_l nSloen
tn      Tur| le                     ^le
 O_rNEomnpntuyl(lC
o      r| d                     ^R
ep* absl_In file included from ns2/s2lax_polyline_shape.ccu:l18l:
aIn file included from b../src/s2/s2lax_polyline_shape.hl:e32 :
rIn file included from e../src/s2/s2polyline.hp:,34
:
      In file included from | ../src/s2/s2builder.h                                 ^:
36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h::25730::
23In file included from :/usr/local/clang/include/absl/container/btree_map.h :note: 66expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/container/internal/btree.h  :25770 | :
#In file included from d/usr/local/clang/include/absl/container/internal/layout.hIn file included from e:s2/s2memory_tracker.ccf198:i:
18nIn file included from :
e/usr/local/clang/include/absl/strings/str_cat.hIn file included from  :../src/s2/s2memory_tracker.ha116:b:
28sIn file included from :
l/usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from _:../src/s2/s2error.hn23:u:
29l/usr/local/clang/include/absl/strings/numbers.h:
l:/usr/local/clang/include/absl/status/status.ha158:b:1038l57:e:33  :_warning:  Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: u
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
la  b158 l | 1038eb | 
 o      o l|                        ^  s
asftea_tsutsr_tion1t6e_In file included from rbs2/s2measures.ccna:sa18el:
(:In file included from :a../src/s2/s2measures.hSb:ts24al:
t:In file included from :u../src/s2/s2point.hss:Rt27er:
piIn file included from n*../src/s2/s2coder.h g:a_23vbi:
seIn file included from wl/usr/local/clang/include/absl/status/status.h _:nt67oe:
nxIn file included from nt/usr/local/clang/include/absl/status/internal/status_internal.h,u: l29li:
 n/usr/local/clang/include/absl/strings/cord.hrt:1e9686p:_)31t *:{  
awarning: b      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s| l
                                ^_
n  o/usr/local/clang/include/absl/base/nullability.h968n: | n241 u: l22 l:   vvnote: oaexpanded from macro 'absl_nonnull'il
du e  E,241m
 | p#      lda| e                                                        ^cfe
iTn/usr/local/clang/include/absl/base/nullability.hree: ea241(bC:sol22r_d:nRo ennote: pn*uexpanded from macro 'absl_nonnull' l
alb   s_l241N_o | nno#nndunelulfliln
 e      r | e                     ^ap
b,s lM_entohnonduIldle n_tNiofnineurl lm
e      t|                      ^h
od);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2lax_polyline_shape.cce:f18i:
nIn file included from e../src/s2/s2lax_polyline_shape.h :a32b:
sIn file included from l../src/s2/s2polyline.h_:n34o:
nIn file included from n../src/s2/s2builder.hu:l36l:
 In file included from _../src/s2/mutable_s2shape_index.hN:o30n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                     ^:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2measures.cc160: | 18b:
oIn file included from o../src/s2/s2measures.hl: 24s:
aIn file included from f../src/s2/s2point.he:_27s:
tIn file included from r../src/s2/s2coder.ht:o233:
2In file included from _/usr/local/clang/include/absl/status/status.hb:a67s:
eIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l/usr/local/clang/include/absl/strings/cord.h:::972s:t31r:i nwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
vie  w972  | t e x t ,v In file included from ois2/s2memory_tracker.ccin:dt18 3:
E2In file included from m_../src/s2/s2memory_tracker.hpt:l*28 aa:
bcIn file included from se../src/s2/s2error.hlT:r_29en:
eo/usr/local/clang/include/absl/status/status.hn(n:Cu1063ol:rl13 d:Rv eawarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l*
u ea, b
1063s       | l| c                                                        ^_o
nnos/usr/local/clang/include/absl/base/nullability.hntn: uc241lhl:a r22r*e: pa,  bnote: csoexpanded from macro 'absl_nonnull'ln_
snto   n241In | nu#lldilne efSDitaantteau &sa Mbpesaslrs_eannogtne,nA
su      lC| lS                              ^ t
r_(/usr/local/clang/include/absl/base/nullability.hN
:o      241n| :n            ^22u
:l l/usr/local/clang/include/absl/base/nullability.hnote: 
:expanded from macro 'absl_nonnull'      241
| :                       ^22241
: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e absl_nonnullIn file included from  |  s2/s2lax_polyline_shape.cc#_d:Neo18fni:
nnueIn file included from l la../src/s2/s2lax_polyline_shape.h
b:      32s| :
l                     ^In file included from _
../src/s2/s2polyline.hn:o34n:
nIn file included from u../src/s2/s2builder.hl:l36 :
_In file included from N../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from In file included from l/usr/local/clang/include/absl/container/btree_map.hs2/s2measures.ccl::
6618      :
:
| In file included from In file included from                      ^/usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2measures.h
::7024:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h../src/s2/s2point.h::19827:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2coder.h::11623:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/status/status.h::2367:
:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h162::2957:
:/usr/local/clang/include/absl/strings/cord.h :978warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]162
 | bo  o978l |   s a f ev_ositdr tCoo6m4m_ibtaTsree(ea(bcsoln:s:ts tCroirndgR_evpi*e wa btselx_tn,u lilnatb6l4e_ to*l da_brselp_,n
o      n| n                                   ^u
ll/usr/local/clang/include/absl/base/nullability.h :v257a:l23u:e ,note: 
expanded from macro 'absl_nullable'      
|                                                         ^  
257 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  a_bNsull_lnaobnlneu
l      l|                        ^_
Nonnull
      |                      ^In file included from 
s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: In file included from warning: s2/s2lax_polyline_shape.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2lax_polyline_shape.h:  32979:
 | In file included from  ../src/s2/s2polyline.h : 34 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from C/usr/local/clang/include/absl/container/internal/btree.ho:r70d:
RIn file included from e/usr/local/clang/include/absl/container/internal/layout.hp:*198 :
aIn file included from b/usr/local/clang/include/absl/strings/str_cat.hs:l116_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:n23u:
l/usr/local/clang/include/absl/strings/numbers.hl: 165r:e39p:,  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst   C165o | r d z U p d a t e S c o p e &   s c o p e , 
        | a                             ^b
sl/usr/local/clang/include/absl/base/nullability.h:::241i:n22t:1 2note: 8expanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bvsall_uneo,n niunltl  b_aNsoen)n;u
l      l| 
                                      ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2measures.ccl:_18n:
oIn file included from n../src/s2/s2measures.hn:u24l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppIn file included from es2/s2lax_polyline_shape.ccn:d18T:
rIn file included from e../src/s2/s2lax_polyline_shape.he:T32o:
IIn file included from n../src/s2/s2polyline.hl:i34n:
eIn file included from d../src/s2/s2builder.h(:C36o:
rIn file included from d../src/s2/mutable_s2shape_index.hR:e30p:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198 :
tIn file included from r/usr/local/clang/include/absl/strings/str_cat.he:e116,:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                                      ^23
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/base/nullability.h::166241::5722::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 166# | dbeofoiln es aafbes_ls_tnrotnonuu8l_lb a_sNeo(nanbuslll:
:      s| t                     ^r
ing_view text, uint8_t*In file included from  s2/s2measures.cca:b18s:
lIn file included from _../src/s2/s2measures.hn:o24n:
nIn file included from u../src/s2/s2point.hl:l27 :
vIn file included from a../src/s2/s2coder.hl:u23e:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                                        ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241/usr/local/clang/include/absl/strings/cord.h::22984:: 36:note:  expanded from macro 'absl_nonnull'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e984f | i n e   avbosild_ nAopnpneunldlT r_eNeoTnonTurlele
(      C| o                     ^r
dRep* absl_nonnull treeIn file included from ,s2/s2lax_polyline_shape.cc :M18e:
tIn file included from h../src/s2/s2lax_polyline_shape.ho:d32I:
dIn file included from e../src/s2/s2polyline.hn:t34i:
fIn file included from i../src/s2/s2builder.he:r36 :
mIn file included from e../src/s2/mutable_s2shape_index.ht:h30o:
dIn file included from )/usr/local/clang/include/absl/container/btree_map.h;:
66      :
| In file included from                                    ^/usr/local/clang/include/absl/container/internal/btree.h
:70:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h241::19822:
:In file included from  /usr/local/clang/include/absl/strings/str_cat.hnote: :expanded from macro 'absl_nonnull'116
:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h241: | 23#:
d/usr/local/clang/include/absl/strings/numbers.he:f168i:n59e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n168n | ublolo l_ Nsoanfneu_lslt
r      t| o                     ^u
16_base(absl::strIn file included from is2/s2measures.ccn:g18_:
vIn file included from i../src/s2/s2measures.he:w24 :
tIn file included from e../src/s2/s2point.hx:t27,:
 In file included from u../src/s2/s2coder.hi:n23t:
1In file included from 6/usr/local/clang/include/absl/status/status.h_:t67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_/usr/local/clang/include/absl/strings/cord.hn:o985n:n30u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
alu  e985, | 
        |                                                            ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d241 :A22p:p enote: nexpanded from macro 'absl_nonnull'd
Tr  e241e | (#CdoerfdiRneep *a basbls_ln_onnonnunlull l_ Ntorneneu,l lM
e      t| h                     ^o
dIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2lax_polyline_shape.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2lax_polyline_shape.h | :#32d:
eIn file included from f../src/s2/s2polyline.hi:n34e:
 In file included from a../src/s2/s2builder.hb:s36l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 66_:
NIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n70u:
lIn file included from l/usr/local/clang/include/absl/container/internal/layout.h
:      198| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2measures.cc:  18170:
 | In file included from b../src/s2/s2measures.ho:o24l:
 In file included from s../src/s2/s2point.ha:f27e:
_In file included from s../src/s2/s2coder.ht:r23t:
oIn file included from u/usr/local/clang/include/absl/status/status.h3:267_:
bIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hs:e29(:
a/usr/local/clang/include/absl/strings/cord.hb:s986l::40::s twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ng_  v986i | e w   t evxoti,d  uPirnetp3e2n_dtT*r eaebTsolI_nnloinnneudl(lC ovradlRueep,*
       a| b                                                          ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull't
re  e241, | 
#      d| e                                       ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from In file included from s2/s2measures.ccs2/s2lax_polyline_shape.cc::1818:
:
In file included from In file included from ../src/s2/s2measures.h../src/s2/s2lax_polyline_shape.h::2432:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2polyline.h::2734:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2builder.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/mutable_s2shape_index.h::6730:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/btree_map.h::2966:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h988::7037:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116  :
988In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.hv:o172i:d59 :P rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
endT  r172e | ebToooTlr esea(fCeo_rsdtRretpo*u 6a4b_sbla_sneo(nanbuslll: :tsrterei,n gM_evtiheowd Itdeexntt,i fuiienrt 6m4e_tth*o da)b;s
l      _| n                                    ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22v:a lnote: uexpanded from macro 'absl_nonnull'e
,
        241|  |                                                           ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:In file included from 989s2/s2lax_polyline_shape.cc::3118::
 In file included from warning: ../src/s2/s2lax_polyline_shape.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
32:
In file included from ../src/s2/s2polyline.h:  34989:
 | In file included from  ../src/s2/s2builder.h : 36 :
vIn file included from o../src/s2/mutable_s2shape_index.hi:d30 :
PIn file included from r/usr/local/clang/include/absl/container/btree_map.he:p66e:
nIn file included from d/usr/local/clang/include/absl/container/internal/btree.hT:r70e:
eIn file included from (/usr/local/clang/include/absl/container/internal/layout.hC:o198r:
dIn file included from R/usr/local/clang/include/absl/strings/str_cat.he:p116*:
 In file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hb:s23l:
_/usr/local/clang/include/absl/strings/numbers.hn:o175n:n41u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ree,   175M | e t h o d I d e n t i f i e r   m e t h o d ) ; 
       a| b                              ^s
l:/usr/local/clang/include/absl/base/nullability.h::u241i:n22t:1 2note: 8expanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bvsall_uneo,n niunltl  b_aNsoen)n;u
l      l| 
                                        ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2measures.ccn:u18l:
lIn file included from 
../src/s2/s2measures.h      :| 24                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyToIn file included from (s2/s2lax_polyline_shape.ccs:t18d:
:In file included from :../src/s2/s2lax_polyline_shape.hs:t32r:
iIn file included from n../src/s2/s2polyline.hg:*34 :
aIn file included from b../src/s2/s2builder.hs:l36_:
nIn file included from o../src/s2/mutable_s2shape_index.hn:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h :d66s:
tIn file included from )/usr/local/clang/include/absl/container/internal/btree.h :c70o:
nIn file included from s/usr/local/clang/include/absl/container/internal/layout.ht: 198{:

In file included from       /usr/local/clang/include/absl/strings/str_cat.h| :                             ^116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/base/nullability.h::23241:
:/usr/local/clang/include/absl/strings/numbers.h22::182 :note: 7expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i182n | ec haabrs*l _anbosnln_unloln n_uNloln nRuoluln
d      T| r                     ^i
pDoubleToBuffer(double dIn file included from ,s2/s2measures.cc :c18h:
aIn file included from r../src/s2/s2measures.h*: 24a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.hb:u67f:
fIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hr:)29;:

/usr/local/clang/include/absl/strings/cord.h      :| 999      ^:
28: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 999expanded from macro 'absl_nonnull' | 
     241  | v#odiedf iCnoep yaTbosAlr_rnaoyn(ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l dst) cIn file included from os2/s2lax_polyline_shape.ccn:s18t:
;In file included from 
../src/s2/s2lax_polyline_shape.h      :| 32                           ^:

In file included from ../src/s2/s2polyline.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :../src/s2/s2builder.h22::36 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/mutable_s2shape_index.h
:30  :
241In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d66e:
fIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:e70 :
aIn file included from b/usr/local/clang/include/absl/container/internal/layout.hs:l198_:
nIn file included from o/usr/local/clang/include/absl/strings/str_cat.hn:n116u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h :_23N:
o/usr/local/clang/include/absl/strings/numbers.hn:n182u:l60l:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  182 | char* absl_nonnull RoundTripDoubleToBIn file included from us2/s2measures.ccf:f18e:
rIn file included from (../src/s2/s2measures.hd:o24u:
bIn file included from l../src/s2/s2point.he: 27d:
,In file included from  ../src/s2/s2coder.hc:h23a:
rIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
n/usr/local/clang/include/absl/strings/cord.hn:u1012l:l37 :b uwarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
er); 
1012       | |                                                             ^ 
  /usr/local/clang/include/absl/base/nullability.ha:b241s:l22::: cnote: oexpanded from macro 'absl_nonnull'r
d_  i241n | t#edrenfailn:e: Caobrsdlz_Innofnon*u lalb s_lN_onnunlullalb
l      e|                       ^c
ordz_info() consIn file included from ts2/s2lax_polyline_shape.cc :{18
:
      In file included from | ../src/s2/s2lax_polyline_shape.h                                    ^:
32:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2polyline.h257::3423:
:In file included from  ../src/s2/s2builder.hnote: :expanded from macro 'absl_nullable'36
:
In file included from   ../src/s2/mutable_s2shape_index.h257: | 30#:
dIn file included from e/usr/local/clang/include/absl/container/btree_map.hf:i66n:
eIn file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from _/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from a/usr/local/clang/include/absl/strings/str_cat.hb:l116e:
 In file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:u23l:
l/usr/local/clang/include/absl/strings/numbers.ha:b183l:e7
:       | warning:                       ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  183 | char* absl_nonnull RouIn file included from ns2/s2measures.ccd:T18r:
iIn file included from p../src/s2/s2measures.hF:l24o:
aIn file included from t../src/s2/s2point.hT:o27B:
uIn file included from f../src/s2/s2coder.hf:e23r:
(In file included from f/usr/local/clang/include/absl/status/status.hl:o67a:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hf:,29 :
c/usr/local/clang/include/absl/strings/cord.hh:a1017r:*51 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non n1017u | l l   b uvfofiedr )s;e
t      _| c      ^o
rd/usr/local/clang/include/absl/base/nullability.hz:_241i:n22f:o (note: cexpanded from macro 'absl_nonnull'o
rd  _241i | n#tdeerfnianle: :aCbosrld_znIonnfnou*l la b_sNlo_nnnounlnlu
l      l|                       ^c
ordz_infIn file included from os2/s2lax_polyline_shape.cc): 18{:

In file included from       ../src/s2/s2lax_polyline_shape.h| :                                                  ^32
:
In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/base/nullability.h::34241:
:In file included from 22../src/s2/s2builder.h:: 36note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/mutable_s2shape_index.h:  30241:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e66f:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.he: 70a:
bIn file included from s/usr/local/clang/include/absl/container/internal/layout.hl:_198n:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hn:u116l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h_:N23o:
n/usr/local/clang/include/absl/strings/numbers.hn:u183l:l58
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2measures.ccl:l18 :
_In file included from N../src/s2/s2measures.ho:n24n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2lax_polyline_shape.cc:18 :
1049In file included from  | ../src/s2/s2lax_polyline_shape.h : 32s:
tIn file included from a../src/s2/s2polyline.ht:i34c:
 In file included from b../src/s2/s2builder.ho:o36l:
 In file included from G../src/s2/mutable_s2shape_index.he:t30F:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:A66u:
xIn file included from (/usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from :/usr/local/clang/include/absl/container/internal/layout.h::c198o:
rIn file included from d/usr/local/clang/include/absl/strings/str_cat.h_:i116n:
tIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:n23a:
l/usr/local/clang/include/absl/strings/numbers.h:::191C:o42r:d Rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
* a  b191s | ls_inzoen_ntu lSli xrDeipg,i
t      s| T                                                       ^o
Bu/usr/local/clang/include/absl/base/nullability.hf:f241e:r22(:d onote: uexpanded from macro 'absl_nonnull'b
le   241d | ,# dcehfairn*e  aabbssll__nnoonnnnuullll  b_uNfofnenru)l;l

            | |                                          ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2measures.ccd:e18f:
iIn file included from n../src/s2/s2measures.he: 24a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

/usr/local/clang/include/absl/strings/cord.h      :| 1050                     ^:
45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |     In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 32 :
 In file included from  ../src/s2/s2polyline.h : 34 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from :/usr/local/clang/include/absl/container/btree_map.h::s66t:
rIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:g70_:
vIn file included from i/usr/local/clang/include/absl/container/internal/layout.he:w198*:
 In file included from a/usr/local/clang/include/absl/strings/str_cat.hb:s116l:
_In file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l198 :f7r:a gwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
nt)  ;198
 |       c| h                                            ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #FdaesftiInnet TaobBsulf_fneorn(niunltl3 2__Nto nin,u lclh
a      r| *                     ^ 
absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2measures.cc::2218::
 In file included from note: ../src/s2/s2measures.hexpanded from macro 'absl_nonnull':
24:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l1054 :_37N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
       | 1054                     ^ | 
      abIn file included from ss2/s2lax_polyline_shape.ccl::18::
cIn file included from o../src/s2/s2lax_polyline_shape.hr:d32_:
iIn file included from n../src/s2/s2polyline.ht:e34r:
nIn file included from a../src/s2/s2builder.hl::36::
CIn file included from o../src/s2/mutable_s2shape_index.hr:d30R:
eIn file included from p/usr/local/clang/include/absl/container/btree_map.h*: 66a:
bIn file included from s/usr/local/clang/include/absl/container/internal/btree.hl:_70n:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from  /usr/local/clang/include/absl/strings/str_cat.hr:e116p:
,In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23                                    ^:

/usr/local/clang/include/absl/strings/numbers.h:198/usr/local/clang/include/absl/base/nullability.h::53241:: 22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  198   | 241c | h#adre*f ianbes la_bnsoln_nnuolnln uFlals t_INnotnTnouBlulf
f      e| r                     ^(
int32_t i, char* absl_nonnull buffer)
      | In file included from                                                     ^s2/s2measures.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2measures.h::2224::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
  In file included from 241../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_/usr/local/clang/include/absl/strings/cord.hn:o1061n:n34u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non n1061u | l l 
v      o| i                     ^d
 CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2lax_polyline_shape.ccn:e18 :
aIn file included from b../src/s2/s2lax_polyline_shape.hs:l32_:
nIn file included from o../src/s2/s2polyline.hn:n34u:
lIn file included from l../src/s2/s2builder.h :_36N:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66                     ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute_In file included from _s2/s2measures.cc(:(18d:
iIn file included from a../src/s2/s2measures.hg:nose_24i:
fIn file included from (../src/s2/s2point.h_:_27b:
uIn file included from i../src/s2/s2coder.hl:t23i:
nIn file included from _/usr/local/clang/include/absl/status/status.ho:b67j:
eIn file included from c/usr/local/clang/include/absl/status/internal/status_internal.ht:_29s:
i/usr/local/clang/include/absl/strings/cord.hz:e1078(:O33b:j ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]0
) <  N1078, |   \ 
a      b| s                 ^l
::cord_internal:In file included from :s2/s2lax_polyline_shape.ccC:o18r:
dIn file included from R../src/s2/s2lax_polyline_shape.he:p32*:
 In file included from a../src/s2/s2polyline.hb:s34l:
_In file included from n../src/s2/s2builder.ho:n36n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30T:
aIn file included from k/usr/local/clang/include/absl/container/btree_map.he:R66e:
pIn file included from (/usr/local/clang/include/absl/container/internal/btree.h): 70c:
oIn file included from n/usr/local/clang/include/absl/container/internal/layout.hs:t198&:
;In file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116                                ^:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/base/nullability.h23::
241/usr/local/clang/include/absl/strings/numbers.h::22200:: 7note: :expanded from macro 'absl_nonnull' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e200f | icnhea ra*b salb_snlo_nnnounlnlu l_lN oFnansutlIln
t      T| o                     ^B
uffer(uint32_t n, cIn file included from hs2/s2measures.cca:r18*:
 In file included from a../src/s2/s2measures.hb:s24l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23o:
uIn file included from t/usr/local/clang/include/absl/status/status.h_:s67t:
rIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
      ^/usr/local/clang/include/absl/strings/cord.h
:1079:/usr/local/clang/include/absl/base/nullability.h33::241 :warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull' 
1079 |    241  | a#bdself:i:nceo radb_siln_tneornnnaull:l: C_oNrodnRneupl*l 
a      b| s                     ^l
_nonnull TaIn file included from ks2/s2lax_polyline_shape.cce:R18e:
pIn file included from (../src/s2/s2lax_polyline_shape.h): 32&:
&In file included from ;../src/s2/s2polyline.h
:      34| :
                                ^In file included from 
../src/s2/s2builder.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/mutable_s2shape_index.h::2230::
 In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nonnull':
66:
  In file included from 241/usr/local/clang/include/absl/container/internal/btree.h | :#70d:
eIn file included from f/usr/local/clang/include/absl/container/internal/layout.hi:n198e:
 In file included from a/usr/local/clang/include/absl/strings/str_cat.hb:s116l:
_In file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.ho:n23n:
u/usr/local/clang/include/absl/strings/numbers.hl:l200 :_54N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 200                     ^ | 
char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   conIn file included from ss2/s2lax_polyline_shape.cct: 18c:
rIn file included from c../src/s2/s2lax_polyline_shape.h_:i32n:
tIn file included from e../src/s2/s2polyline.hr:n34a:
lIn file included from :../src/s2/s2builder.h::C36r:
cIn file included from C../src/s2/mutable_s2shape_index.ho:r30d:
SIn file included from t/usr/local/clang/include/absl/container/btree_map.ha:t66e:
*In file included from  /usr/local/clang/include/absl/container/internal/btree.ha:b70s:
lIn file included from _/usr/local/clang/include/absl/container/internal/layout.hn:u198l:
lIn file included from a/usr/local/clang/include/absl/strings/str_cat.hb:l116e:
 In file included from M/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:y23b:
e/usr/local/clang/include/absl/strings/numbers.hG:e201t:C5r:c Cwarning: o'diagnose_if' is a clang extension [-Wgcc-compat]r
dSta  t201e | ( )   c oAnBsStL;_
I      N| T                                    ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L257_:N23E:E Dnote: _expanded from macro 'absl_nullable'M
IN  _257S | I#ZdEe(foiunte_ satbrs,l _knFualsltaTbolBeu f_fNeurlSliazbel)e;

            | |                       ^    ^

/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__In file included from (s2/s2measures.cc(:d18i:
aIn file included from g../src/s2/s2measures.hn:o24s:
eIn file included from _../src/s2/s2point.hi:f27(:
_In file included from _../src/s2/s2coder.hb:u23i:
lIn file included from t/usr/local/clang/include/absl/status/status.hi:n67_:
oIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hj:e29c:
t/usr/local/clang/include/absl/strings/cord.h_:s1120i:z30e:( Owarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]j
, 0 )1120  | <   Nv,o i\d
       C| o                 ^p
yToArrayImpIn file included from ls2/s2lax_polyline_shape.cc(:c18h:
aIn file included from r../src/s2/s2lax_polyline_shape.h*: 32a:
bIn file included from s../src/s2/s2polyline.hl:_34n:
oIn file included from n../src/s2/s2builder.hn:u36l:
lIn file included from  ../src/s2/mutable_s2shape_index.hd:s30t:
)In file included from  /usr/local/clang/include/absl/container/btree_map.hc:o66n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h;:
70      :
| In file included from                              ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h241::11622:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hnote: :expanded from macro 'absl_nonnull'23
:
/usr/local/clang/include/absl/strings/numbers.h  :241202 | :#7d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b202s | lc_hnaorn*n ualbls l__Nnoonnnnuullll
       F| a                     ^s
tIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:In file included from 70s2/s2measures.cc:
:In file included from 18/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198../src/s2/s2measures.h:
:In file included from 24/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/s2coder.h:
:23/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 303/usr/local/clang/include/absl/status/status.h::6067::
 In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
/usr/local/clang/include/absl/strings/cord.h:  1159303: | 17i:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e s i1159z | ei_ntl iFnaes tCHoerxdTRoeBpu*f faebrsZle_rnooPnandu1l6l( uNienwtE6x4t_etr nvaallR,e pc(h
a      r| *                ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 o  u241t | )# d{e
f      i| n                                                           ^e
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: In file included from warning: s2/s2measures.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2measures.h:  24330:
 | In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1183 : 47 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 int _1183t | y p e *   a b s l _ n o n n u l l   o u t )   { 
            |                                          ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241C:o22r:d Rnote: eexpanded from macro 'absl_nonnull'p
*   a241b | s#ld_enfuilnlea balbes lr_enpo)n
n      u| l                                              ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
note:       expanded from macro 'absl_nullable'| 
                     ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2lax_polyline_shape.cc:18:
In file included from  ../src/s2/s2lax_polyline_shape.h1222: | 32i:
nIn file included from l../src/s2/s2polyline.hi:n34e:
 In file included from v../src/s2/s2builder.ho:i36d:
 In file included from C../src/s2/mutable_s2shape_index.ho:r30d:
:In file included from :/usr/local/clang/include/absl/container/btree_map.hI:n66l:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.he:R70e:
pIn file included from :/usr/local/clang/include/absl/container/internal/layout.h::S198w:
aIn file included from p/usr/local/clang/include/absl/strings/str_cat.h(:C116o:
rIn file included from d/usr/local/clang/include/absl/strings/internal/stringify_sink.h:::23I:
n/usr/local/clang/include/absl/strings/numbers.hl:i346n:e44R:e pwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _346n | o n n u l l   r h s )   { 
        |                                                     ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | i#ndte_ftiynpee *a basbls_ln_onnonnunlul _Nolnln uolult
)       | {                     ^

      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:In file included from 34s2/s2measures.cc:
:In file included from 18../src/s2/s2builder.h:
:In file included from 36../src/s2/s2measures.h:
:In file included from 24../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/strings/str_cat.h:
:/usr/local/clang/include/absl/strings/cord.h116::
1230In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h20::23 :
warning: /usr/local/clang/include/absl/strings/numbers.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
351:55:  warning: 1230type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
inli  n351e |   c o n s t   c h a r *   a b s l _ n u l l a b l e   C o r d : : I n l i n e R eapb:s:ld:a:tian(t)1 2c8o*n satb s{l
_      n| o                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :o23u:t )note:  expanded from macro 'absl_nullable'{

      |                                                         ^257
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2lax_polyline_shape.cc::123418::
20In file included from :../src/s2/s2lax_polyline_shape.h :warning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2polyline.h:34:
 In file included from 1234../src/s2/s2builder.h | :i36n:
lIn file included from i../src/s2/mutable_s2shape_index.hn:e30 :
cIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:s66t:
 In file included from c/usr/local/clang/include/absl/container/internal/btree.hh:a70r:
*In file included from  /usr/local/clang/include/absl/container/internal/layout.ha:b198s:
lIn file included from _/usr/local/clang/include/absl/strings/str_cat.hn:o116n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23 :
C/usr/local/clang/include/absl/strings/numbers.ho:r356d::56::I nwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
neRe  p356: | : a s _ c h a r s ( )   c o n s t   { 
        |                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # daebfsiln:e: uaibnstl1_2n8o*n naublsll __nNoonnnnuullll 
o      u| t                     ^)
 {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
s2/s2loop.cc:82:1In file included from :s2/s2measures.cc :18warning: :
'__COUNTER__' is a C2y extension [-Wc2y-extensions]In file included from 
../src/s2/s2measures.h:24:
   In file included from 82../src/s2/s2point.h:27 | :
SIn file included from 2../src/s2/s2coder.h_:D23E:
FIn file included from I/usr/local/clang/include/absl/status/status.hN:E67_:
bIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.ho:l29(:

      /usr/local/clang/include/absl/strings/cord.h| :^1258
:36: ../src/s2/base/commandlineflags.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:3:  note: 1258expanded from macro 'S2_DEFINE_bool' | 
inl   i27n | e   cAoBrSdL__iFnLtAeGr(nbaolo:l:,C onradmRee,p Fdleafta*u latb_svla_lnuoen,n udlels
c      r| i                                   ^p
ti/usr/local/clang/include/absl/base/nullability.ho:n241):
22      :|    ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/flags/flag.h  :241170 | :#3d:e fnote: iexpanded from macro 'ABSL_FLAG'n
e   a170b | s l _AnBoSnLn_uFlLlA G__NIoMnPnLu(lTly
p      e| ,                     ^ 
name, default_value, help)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:272:3: note: expanded from macro 'ABSL_FLAG_IMPL'
  272 |   ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help)                     \
      |   ^
/usr/local/clang/include/absl/flags/flag.h:250:44: note: expanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'
  250 |   constexpr auto FLAGS_help_storIn file included from as2/s2measures.ccg:e18_:
#In file included from #../src/s2/s2measures.hn:a24m:
eIn file included from  ../src/s2/s2point.hA:B27S:
LIn file included from _../src/s2/s2coder.hI:N23T:
EIn file included from R/usr/local/clang/include/absl/status/status.hN:A67L:
_In file included from U/usr/local/clang/include/absl/status/internal/status_internal.hN:I29Q:
U/usr/local/clang/include/absl/strings/cord.hE:_1268S:M51A:L Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AME( )1268  | \i
n      l| i                                           ^n
e /usr/local/clang/include/absl/base/optimization.hv:o306i:d46 :C onote: rexpanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'd
::I  n306l | i n eaRsemp(:A:BESmLp_lIaNcTeETRrNeAeL(_CUoNrIdQRUeEp_*S MaAbLsLl__NnAoMnEn1u(l.la brselp.,_
_      C| O                                                  ^U
NTE/usr/local/clang/include/absl/base/nullability.hR:_241_:)22):
       | note:                                              ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2lax_polyline_shape.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2lax_polyline_shape.h/usr/local/clang/include/absl/status/status.h::3267:
:
In file included from In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/status/internal/status_internal.h::3429:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2builder.h::130236::
50In file included from :../src/s2/mutable_s2shape_index.h :warning: 30type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:66 :
1302In file included from  | /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
  /usr/local/clang/include/absl/strings/str_cat.h : 223 : 25 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       223  |      e x p l i c i t   H e x (CPooridnRteepe**  aabbssll__nnounlnlualbll er evp,, 
P      a| d                                                 ^S
pe/usr/local/clang/include/absl/base/nullability.hc: 241s:p22e:c  note: =expanded from macro 'absl_nonnull' 
ab  s241l | :#:dkeNfoiPnaed )a
b      s| l                        ^_
non/usr/local/clang/include/absl/base/nullability.hn:u257l:l23 :_ Nnote: oexpanded from macro 'absl_nullable'n
nu  l257l | 
#      d| e                     ^f
ine absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
s2/s2loop.cc:91:1: warning: '__COUNTER__' is a C2y extension [-Wc2y-extensions]
   91 | S2_DEFINE_int32(
      | ^
../src/s2/base/commandlineflags.h:33:3: note: expanded from macro 'S2_DEFINE_int32'
   33 |   ABSL_FLAG(int32, name, default_value, description)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:170:3: note: expanded from macro 'ABSL_FLAG'
  170 |   ABSL_FLAG_IMPL(Type, name, default_value, help)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:272:3: note: expanded from macro 'ABSL_FLAG_IMPL'
  272 |   ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help)                     \
      |   ^
/usr/local/clang/include/absl/flags/flag.h:250:44: note: expanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'
  250 |   constexpr auto FLAGS_help_storage_##name ABSL_INTERNAL_UNIQUEIn file included from _s2/s2measures.ccS:M18A:
LIn file included from L../src/s2/s2measures.h_:N24A:
MIn file included from E../src/s2/s2point.h(:)27 :
\In file included from 
../src/s2/s2coder.h      :| 23                                           ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/optimization.h67::
306In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h46::29 :
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME':
1505:41:   306 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
asm( A1505B | SiLn_lIiNnTeE RvNoAiLd_ UCNoIrQdU:E:_CSoMpAyLTLo_ANrArMaEy1I(m.palb(sclh.a_r_*C OaUbNsTlE_Rn_o_n)n)u
l      l|                                               ^d
st) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2max_distance_targets.ccIn file included from :../src/s2/s2coder.h28::
23In file included from :
../src/s2/s2furthest_edge_query.hIn file included from :/usr/local/clang/include/absl/status/status.h33::
67In file included from :
../src/s2/s2closest_edge_query_base.h:/usr/local/clang/include/absl/status/internal/status_internal.h32::
119In file included from :/usr/local/clang/include/absl/container/btree_set.h14::66 :
warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
525:30:   119warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 S  t525a | t u s R e p *   a b s l _ n o n n u lfla lCsleo,n et(r
u      e| )             ^;

      |                              ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/btree_container.h241::49622::9 :note:  expanded from macro 'absl_nonnull'
note: macro 'ABSL_INTERNAL_X' defined here  
241 | #  d496e | f#idneef ianbes lA_BnSoLn_nIuNlTlE R_NNAoLn_nXu(lFlu
n      c| ,                     ^ 
Callee, KQual, MQual, KValue, MValue, .In file included from .s2/s2measures.cc.:)18 :
 In file included from  ../src/s2/s2measures.h : 24\:

In file included from       ../src/s2/s2point.h| :        ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2measures.cc524::183:
:In file included from  ../src/s2/s2measures.h:warning: 24passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2point.h:27:
  In file included from 524../src/s2/s2coder.h | : 23 :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
I/usr/local/clang/include/absl/status/internal/status_internal.hN:T128E:R14N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]X
(in  s128e | r t _Sotra_tausssRiegpn*,  aibnssle_rnto_nonru_lals sCilgonn_eiAmnpdlU,n rceofn(s)t  c&o,n scto;n
s      t|               ^&
,
/usr/local/clang/include/absl/base/nullability.h      :| 241  ^:
22: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'509
:52  :241  | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n509e |   a b s l _ n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_AIn file included from Ts2/s2metrics.ccT:R31I:
BIn file included from U../src/s2/s2metrics.hT:E34_:
CIn file included from A../src/s2/s2coords.hP:T108U:
RIn file included from E../src/s2/s2point.hD:_24B:
YIn file included from (/usr/local/clang/include/absl/hash/hash.ht:h89i:
In file included from s/usr/local/clang/include/absl/hash/internal/hash.h):)79):
  /usr/local/clang/include/absl/base/internal/endian.h : 160 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        160  |  i n l i n e\ 
u      i| n                                              ^~~~t
16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   falsIn file included from es2/s2metrics.cc):;31
:
      In file included from | ../src/s2/s2metrics.h                       ^:
34:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2coords.h::496108::
9In file included from :../src/s2/s2point.h :note: 24macro 'ABSL_INTERNAL_X' defined here:

In file included from /usr/local/clang/include/absl/hash/hash.h:89  :
496In file included from  | /usr/local/clang/include/absl/hash/internal/hash.h#:d79e:
f/usr/local/clang/include/absl/base/internal/endian.hi:n164e: 27A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT  E164R | NiAnLl_iXn(eF uvnoci,d  CSatlolreee1,6 (KvQouiadl*,  aMbQsula_ln,o nKnVualllu ep,,  MuVianltu1e6,_ ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      | In file included from                                                    ^s2/s2measures.cc
:18/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s2measures.h::924::
 In file included from note: ../src/s2/s2point.hmacro 'ABSL_INTERNAL_IF_true' defined here:
27:
In file included from    ../src/s2/s2coder.h31: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
e /usr/local/clang/include/absl/status/internal/status_internal.hA:B149S:L13_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L149_ | IcFo_ntsrtu ec(hiafr_*s aatbisslf_ineodn,n u.l.l. )M aikfe_CshaetciksFfaiieldS
t      r| i        ^n
g(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2max_distance_targets.ccexpanded from macro 'absl_nonnull':
28:
In file included from   ../src/s2/s2furthest_edge_query.h241: | 33#:
dIn file included from e../src/s2/s2closest_edge_query_base.hf:i32n:
eIn file included from  /usr/local/clang/include/absl/container/btree_set.ha:b66s:
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n533o:n3n:u lwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
_Nonn  u533l | l 
       A| B                     ^S
L_INTERNALIn file included from _s2/s2measures.ccX:(18i:
nIn file included from s../src/s2/s2measures.he:r24t:
_In file included from o../src/s2/s2point.hr:_27a:
sIn file included from s../src/s2/s2coder.hi:g23n:
,In file included from  /usr/local/clang/include/absl/status/status.hi:n67s:
e/usr/local/clang/include/absl/status/internal/status_internal.hr:t150_:o25r:_ awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ign  _150i | m p l ,  ccoonnsstt  a&b,s l&:&:,S tfaatlusse*, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_n  o534n | n u l l   s t a t u s ,   c o n s t  tcrhuaer)*; 
a      b| s                  ~~~~~l
_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:  pnote: rexpanded from macro 'ABSL_INTERNAL_X'e
fix  )511; | 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iAnTeT RaIbBsUlT_En_oCnAnPuTlUlR E_DN_oBnYn(utlhli
s      )| )                     ^)
          In file included from  s2/s2measures.cc : 18 :
 In file included from  ../src/s2/s2measures.h : 24 :
 In file included from  ../src/s2/s2point.h : 27 :
\In file included from 
../src/s2/s2coder.h      :| 23                                              ^~~~:

In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l536l:
24      :|                       ^warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
t   538v | )   { 
        |                            ^ 
     /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  tnote: rexpanded from macro 'absl_nonnull'u
e);  
241       | | #                      ^d
ef/usr/local/clang/include/absl/container/internal/btree_container.hi:n496e: 9a:b snote: lmacro 'ABSL_INTERNAL_X' defined here_
non  n496u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de/usr/local/clang/include/absl/container/internal/btree_container.hf:i537n:e3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_n  o537n | n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(insertIn file included from _s2/s2measures.cco:r18_:
aIn file included from s../src/s2/s2measures.hs:i24g:
nIn file included from ,../src/s2/s2point.h :i27n:
sIn file included from e../src/s2/s2coder.hr:t23_:
or/usr/local/clang/include/absl/status/status.h_:a725s:s38i:g nwarning: _In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]is2/s2metrics.cc
m:p31l  ,:
 725In file included from c | o../src/s2/s2metrics.h n: s34st:
t In file included from &a../src/s2/s2coords.h,t:i 108c&:
 &In file included from s,../src/s2/s2point.ht :ta24rtu:
ueIn file included from s,/usr/local/clang/include/absl/hash/hash.h_
:i      89n| :
  ^tIn file included from e
/usr/local/clang/include/absl/hash/internal/hash.hr:n/usr/local/clang/include/absl/container/internal/btree_container.h79a::
l509/usr/local/clang/include/absl/base/internal/endian.h::::52172S::t 27a:note: texpanded from macro 'ABSL_INTERNAL_X' u
warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
  e509p   | * 172   |  aib n s ll i_ nn e o AnvBnouSilLdl_  SIPtNroeTrEpeaR3r2Ne(TAvooLM_iAodTd*TiR faIyBb(sU
TlE      __| nC                                     ^oA
nPnT/usr/local/clang/include/absl/base/nullability.huU:RlE241lD: _22pB:,Y  (note: tuexpanded from macro 'absl_nonnull'ih
ins  t)241)3 | ,2# _d te  f v i) n e {  
 a       b | s                          ^ l
 _ /usr/local/clang/include/absl/base/nullability.hn :o 241n :n 22u : l  note: l expanded from macro 'absl_nonnull'  
 _\N  
o241n       | n#| u                                                   ^dle
lf
/usr/local/clang/include/absl/container/internal/common.hi      n:| e                     ^31 
:a9b:s lnote: _macro 'ABSL_INTERNAL_IF_true' defined heren
onn   u31l | l# d_eNfoinnneu lAlB
S      L| _                     ^I
NTIn file included from Es2/s2measures.ccR:N18A:
LIn file included from _../src/s2/s2measures.hI:F24_:
tIn file included from r../src/s2/s2point.hu:e27(:
iIn file included from f../src/s2/s2coder.h_:s23a:
t/usr/local/clang/include/absl/status/status.hi:s732f:i29e:d ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].
..)   In file included from 732is2/s2metrics.cc | f: _31 s:
saIn file included from tt../src/s2/s2metrics.hai:ts34fii:
ceIn file included from  d../src/s2/s2coords.hc
:o      108n| :
s        ^In file included from t
../src/s2/s2point.h :s24t:
dIn file included from :/usr/local/clang/include/absl/hash/hash.h::s89t:
rIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hn:g79*:
In file included from  /usr/local/clang/include/absl/base/internal/endian.has2/s2max_distance_targets.cc:b:176s28:l:
36_In file included from :n../src/s2/s2furthest_edge_query.h o:warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]33n
:
uIn file included from l  ../src/s2/s2closest_edge_query_base.hl176:  | Ei32mnp:
ltiIn file included from yn/usr/local/clang/include/absl/container/btree_set.hSet: ru66iin:
ngt/usr/local/clang/include/absl/container/internal/btree_container.h(6):4;_537
t:       3| L                            ^:o
a d/usr/local/clang/include/absl/base/nullability.hwarning: 6:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]4241
(:c22o:n s  note: texpanded from macro 'absl_nonnull'537 
v | o  i 241d  | *A#B dSaeLb_fsiIlNnT_enE oRanNbAnLsu_ll_Xln( oipnn)n sue{l
rl      t _| _                                   ^oN
ro_/usr/local/clang/include/absl/base/nullability.hna:ns241us:il22gln:
,        note: i| expanded from macro 'absl_nonnull'n                     ^
s
e  r241t | _#odre_faisnsei ganIn file included from b_s2/s2measures.ccsi:ml18_p:
nlIn file included from ,o../src/s2/s2measures.h n:cn24uo:
nlIn file included from sl../src/s2/s2point.ht  :_&27N,:
o In file included from n&../src/s2/s2coder.hn&:u,23 l:
lt/usr/local/clang/include/absl/status/status.h
r:      u733| e:,                     ^29

:       | warning:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  538 |    733  |      s t a t i c   c o n s t   sttrdu:e:)s;t
r      In file included from i| s2/s2metrics.ccn                  ~~~~~:g
31*:
 In file included from a/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2metrics.hb::s50934l::
_47In file included from n:../src/s2/s2coords.ho :nnote: 108nexpanded from macro 'ABSL_INTERNAL_X':
u
In file included from l../src/s2/s2point.hl:   24M509:
o | In file included from v /usr/local/clang/include/absl/hash/hash.he :d 89F :
r In file included from  o/usr/local/clang/include/absl/hash/internal/hash.hm :S 79t :
r /usr/local/clang/include/absl/base/internal/endian.hiA:Bn180gS:L(_27)I:;N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
R
N      A|   L                            ^180_
 | Ai/usr/local/clang/include/absl/base/nullability.hTnT:RlI241iB:nU22eT: E v_note: oexpanded from macro 'absl_nonnull'Ci
Ad   P241TS | Ut#oRdEreeDf6i_4n(BeYv (otaihbdsi*l s_an)bos)n,ln _un l ol n  n_ u Nl ol n  npu ,l  l u 
 i      n |  t                      ^6 
4 _ t   v )\ 
{      
|                                                     ^~~~| 
                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'537
:3  :241  | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
e/usr/local/clang/include/absl/container/internal/btree_container.hf:i511n:e52 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_In file included from ns2/s2measures.cco  :n51118n | :
 uIn file included from  l../src/s2/s2measures.hl :  24 _:
 NIn file included from o ../src/s2/s2point.hn : n27 u:
lAIn file included from lB../src/s2/s2coder.h
S:      L23| _:
                     ^/usr/local/clang/include/absl/status/status.hI
:N751T:E61R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ATTR  I751B | U T Es_tCaAtPiTcU RuEiDn_tBpYt(rt_hti sP)o)i)n t e r T o R e p ( s t a t u s _ i n t e r n a l\:
:      S| t                                                   ^a
tu/usr/local/clang/include/absl/container/internal/common.hs:R31e:p9*:  anote: bmacro 'ABSL_INTERNAL_IF_true' defined heres
l_n   o31n | n#udlelf irn)e; 
A      B| S                                                            ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'I
F_  t241r | u#ed(eiffi_nsea taibssfli_endo,n n.u.l.l)  _iNfo_nsnautlils
f      i| e                     ^d

      |         ^
In file included from s2/s2max_distance_targets.cc:28In file included from :
s2/s2measures.ccIn file included from :../src/s2/s2furthest_edge_query.h18::
33In file included from :
../src/s2/s2measures.hIn file included from :../src/s2/s2closest_edge_query_base.h24::
32In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h27::
66In file included from :
../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree_container.h::23537:
:/usr/local/clang/include/absl/status/status.h3::752 :warning: 44'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  537 |     752A | B S Ls_tIaNtTiEcR NcAoLn_sXt( isntsaetruts__oirn_taesrsniagln:,: SitnasteurstR_eopr*_ aasbssilg_nn_oinmnpull,l  cRoenpsTto P&o,i n&t&e,r (t
r      u| e                                           ^,

      | /usr/local/clang/include/absl/base/nullability.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
241:  22538: |   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b stlr_uneo)n;n
u      l| l                  ~~~~~ 
_No/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:
       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:/usr/local/clang/include/absl/container/internal/btree_container.h250::54436::3 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
    250544 |  | i n lAiBnSeL _uIiNnTtE1R6N_AtL _LXo(aidn1s6e(rcto_nosrt_ avsosiidg*n ,a bisnls_enrotn_nourl_la sps)i g{n
_      i| m                                   ^p
l, &/usr/local/clang/include/absl/base/nullability.h&:,241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
&,   241t | r#udee,f
i      n| e  ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N509o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),           In file included from  s2/s2metrics.cc : 31 :
 In file included from  ../src/s2/s2metrics.h : 34 :
 In file included from  ../src/s2/s2coords.h : 108\:

In file included from       ../src/s2/s2point.h| :                                                   ^24
:
In file included from /usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/container/internal/common.h::8931:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_imp:
l,In file included from  /usr/local/clang/include/absl/hash/internal/hash.h&:&79,:
 c/usr/local/clang/include/absl/base/internal/endian.ho:n254s:t27 :& ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
rue,
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~254
 |   i547n | l i n e   v o i d   S t o r e 1 6 ( vtoriude*) ;a
b      s| l                  ~~~~~_
no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:  pnote: ,expanded from macro 'ABSL_INTERNAL_X' 
uin  t5111 | 6 _ t   v )   { 
        | A                          ^B
SL_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'A
TT  R241I | B#UdTeEf_iCnAeP TaUbRsElD__nBoYn(ntuhlils )_)N)o n n u l l 
        |                       ^ 
              \
      |                                               ^~~~
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline ui/usr/local/clang/include/absl/container/internal/btree_container.hn:t5503:224_:t  warning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
ad  35502 | ( c o n s t   v o i d *   a b s l _ nfoanlnsuel)l; 
p      )|                         ^{

      /usr/local/clang/include/absl/container/internal/btree_container.h| :                                   ^496
:9: /usr/local/clang/include/absl/base/nullability.hnote: :macro 'ABSL_INTERNAL_X' defined here241
:22:   note: 496expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee fAiBnSeL _aIbNsTlE_RnNoAnLn_uXl(lF u_nNco,n nCuallll
e      e| ,                     ^ 
KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l549l: 3_:N owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull  
549       | |                       ^ 
ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impIn file included from ls2/s2metrics.cc,: 31&:
&In file included from ,../src/s2/s2metrics.h :&34&:
,In file included from  ../src/s2/s2coords.hf:a108l:
sIn file included from e../src/s2/s2point.h,:
24      :
| In file included from   ^/usr/local/clang/include/absl/hash/hash.h
:89:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h509::7952:
:/usr/local/clang/include/absl/base/internal/endian.h :note: 266expanded from macro 'ABSL_INTERNAL_X':
36:   warning: 509type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      266  |  i n l i nAeB SuLi_nItN6T4E_RtN ALLo_aAdT6T4R(IcBoUnTsEt_ CvAoPiTdU*R EaDb_sBlY_(ntohninsu)l)l,  p )   { 
        |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | \#
d      e| f                                                   ^i
ne/usr/local/clang/include/absl/container/internal/common.h :a32b:s9l:_ nnote: omacro 'ABSL_INTERNAL_IF_false' defined heren
nul   l32  | _#Ndoenfniunlel 
A      B| S                     ^L
_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS_In file included from _s2/s2metrics.cc
:      31| :
        ^In file included from 
../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.hs2/s2max_distance_targets.cc::27028::
27In file included from :../src/s2/s2furthest_edge_query.h :warning: 33type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2closest_edge_query_base.h:32  :
270In file included from  | /usr/local/clang/include/absl/container/btree_set.hi:n66l:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:e549 :v3o:i dwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]S
tore  65494 | ( v oAiBdS*L _aIbNsTlE_RnNoAnLn_uXl(li nps,e ruti_notr6_4a_sts ivg)n ,{ 
i      n| s                          ^e
rt/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n_  i241m | p#ld,e f&i&n,e  &a&b,s lf_anlosnen,u
l      l|    ^_
No/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:
       note: | expanded from macro 'ABSL_INTERNAL_X'                     ^

  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(inseIn file included from rs2/s2measures.cct:_18o:
rIn file included from _../src/s2/s2measures.ha:s24s:
iIn file included from g../src/s2/s2point.hn:,27 :
iIn file included from n../src/s2/s2coder.hs:e23r:
t_/usr/local/clang/include/absl/status/status.ho:r1031_:a42s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
_impl ,1031  | &i&n,l i&n&e,  cfoanlsste ,s ttartuues)_;i
n      t| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r
nal/usr/local/clang/include/absl/container/internal/btree_container.h:::511S:t47a:t unote: sexpanded from macro 'ABSL_INTERNAL_X'R
ep*   511a | b s l _ n o n n u l lA BSStLa_tIuNsT:E:RRNeApLT_oAPToTiRnItBUeTrE(_
C      A| P                                         ^T
URED/usr/local/clang/include/absl/base/nullability.h_:B241Y:(22t:h inote: sexpanded from macro 'absl_nonnull')
))   241  |  # d e f i n e   a b s l _ n o n n u l l   _\N
o      n| n                                              ^~~~u
ll
      |                      ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal:/usr/local/clang/include/absl/container/internal/btree_container.h::S552t:a79t:u swarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
p* a  b552s | l _ nAoBnSnLu_lIlN TrEeRpN)A L{_
X      (| i                                ^n
se/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uilmlp l_,N o&n&n,u l&l&
,       | t                     ^r
ue, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2measures.cc:18:
In file included from ../src/s2/s2measures.h/usr/local/clang/include/absl/container/internal/btree_container.h::24552:
:In file included from 3../src/s2/s2point.h:: 27warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2coder.h  :55223 | :
 /usr/local/clang/include/absl/status/status.h :A1063B:S13L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA L1063_ | Xc(oinnsste rcth_aorr*_ aasbssilg_nn,o ninnuslelr tS_toart_uassMseisgsna_giemApslC,S t&r&(,
       &| &            ^,
 tr/usr/local/clang/include/absl/base/nullability.hu:e241,: 22f:a lnote: sexpanded from macro 'absl_nonnull'e
);  
241       | | #  ^d
ef/usr/local/clang/include/absl/container/internal/btree_container.hi:n509e: 52a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n509u | l l   _ N o n n u l lA
B      S| L                     ^_
INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(FuncIn file included from ,s2/s2max_distance_targets.cc :C28a:
lIn file included from l../src/s2/s2furthest_edge_query.he:e33,:
 In file included from K../src/s2/s2closest_edge_query_base.hQ:u32a:
lIn file included from ,/usr/local/clang/include/absl/container/btree_set.h :M66Q:
u/usr/local/clang/include/absl/container/internal/btree_container.ha:l564,: 3K:V awarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
e, M  V564a | l u eA,B S.L._.I)N T E R N A\L
_      X| (        ^i
nsert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_I/usr/local/clang/include/absl/container/internal/btree_container.hN:T522E:R3N:A Lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
F_tr  u522e | ( i fA_BsSaLt_iIsNfTiEeRdN,A L._.X.()i nisfe_rsta_toirs_faisesdi
g      n| ,        ^ 
insert_or_assigIn file included from ns2/s2max_distance_targets.cc_:i28m:
pIn file included from l../src/s2/s2furthest_edge_query.h,: 33c:
oIn file included from n../src/s2/s2closest_edge_query_base.hs:t32 :
&In file included from ,/usr/local/clang/include/absl/container/btree_set.h :c66o:
n/usr/local/clang/include/absl/container/internal/btree_container.hs:t564 :&3,:
       | warning:   ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/container/internal/btree_container.h:509:52  :564  | note:  expanded from macro 'ABSL_INTERNAL_X' 
ABS  L509_ | I N T E R N A L _ X (AiBnSsLe_rItN_ToErR_NaAsLs_iAgTnT,R IiBnUsTeEr_tC_AoPrT_UaRsEsDi_gBnY_(htihnits_)i)m,p l ,   c o n s t   & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     565  |         \ 
        |                                                     ^ 
      /usr/local/clang/include/absl/container/internal/common.h : 32 :c9o:n snote: tmacro 'ABSL_INTERNAL_IF_false' defined here 
&,    t32r | u#ed,e ftirnuee ,A
B      S| L                  ~~~~~~~~~~~~~~~~~~~~_
INT  E566R | N A L _ I F _ f a l s e ( i f _ s a tciosnfsite_di,t e.r.a.t)o r_(_hViAn_tA)R GASB_S_L
_      I| N        ^T
ERNAL_COMMIn file included from As2/s2lax_polyline_shape.cc):;18
:
      In file included from | ../src/s2/s2lax_polyline_shape.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
32:
In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/container/internal/btree_container.h::34509:
:In file included from 47../src/s2/s2builder.h:: 36:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :50967 | :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 522 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
ABS  L522_ | I N TAEBRSNLA_LI_NATTETRRNIABLU_TXE(_iCnAsPeTrUtR_EoDr__BaYs(stihgins,) )i,n s e r t _ o r _ a s s i g n _ i m p l ,   c o n\s
t       | &                                              ^~~~,
 const /usr/local/clang/include/absl/container/internal/btree_container.h&:,564
:      3| :  ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/internal/btree_container.h
:511/usr/local/clang/include/absl/container/internal/btree_container.h::52511:: 52:note:  expanded from macro 'ABSL_INTERNAL_X'note: 
expanded from macro 'ABSL_INTERNAL_X'
  511   | 511  |                   A BASBLS_LI_NITNETRENRANLA_LA_TATTRTIRBIUBTUET_EC_ACPATPUTRUERDE_DB_YB(Yt(htihsi)s)))) )                                              \ 
\      
|                                                          ^| 
                                                   ^
/usr/local/clang/include/absl/container/internal/common.h:32/usr/local/clang/include/absl/container/internal/common.h::931:: 9:note:  macro 'ABSL_INTERNAL_IF_false' defined herenote: 
macro 'ABSL_INTERNAL_IF_true' defined here
   32    | 31# | d#edfeifnien eA BASBLS_LI_NITNETRENRANLA_LI_FI_Ff_atlrsuee((iiff__ssaattiissffiieedd,,  ......))  _i_fV_As_aAtRiGsSf_i_e
d      
|               ^| 
        ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_In file included from Is2/s2lax_polyline_shape.ccN:T18E:
RIn file included from N../src/s2/s2lax_polyline_shape.hA:L32_:
XIn file included from (../src/s2/s2polyline.hi:n34s:
eIn file included from r../src/s2/s2builder.ht:_36o:
rIn file included from _../src/s2/mutable_s2shape_index.ha:s30s:
iIn file included from g/usr/local/clang/include/absl/container/btree_map.hn:,67 :
i/usr/local/clang/include/absl/container/internal/btree_container.hn:s525e:r30t:_ owarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
ass  i525g | n _ h i n t _ i m p l ,   c o n s t  f&a,l
s      e| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
tr  u565e | ) ; 
        |                               ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
 co  n496s | t# d&e,f itnreu eA,B StLr_uIeN,T
E      R| N                  ~~~~~~~~~~~~~~~~~~~~A
L_X  (566F | u n c ,   C a l l e e ,   K Q u a l ,c oMnQsuta_li,t eKrVaatloure(,h iMnVta)l uAeB,S L._.I.N)T E R N A L\_
C      O| M        ^M
A);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: In file included from warning: s2/s2lax_polyline_shape.cc:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]18
:
In file included from ../src/s2/s2lax_polyline_shape.h:32  :
568In file included from  | ../src/s2/s2polyline.h : 34A:
BIn file included from S../src/s2/s2builder.hL:_36I:
NIn file included from T../src/s2/mutable_s2shape_index.hE:R30N:
AIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:X67(:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:s524e:r3t:_ owarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
assi  g524n | ,   iAnBsSeLr_tI_NoTrE_RaNsAsLi_gXn(_ihnisnetr_ti_moprl_,a scsoingsnt,  &i,n s&e&r,t
_      o| r  ^_
as/usr/local/clang/include/absl/container/internal/btree_container.hs:i509g:n52_:i mnote: pexpanded from macro 'ABSL_INTERNAL_X'l
, c  o509n | s t   & ,   c o n s tA B&S,L
_      I| N  ^T
ER/usr/local/clang/include/absl/container/internal/btree_container.hN:A511L:_52A:T Tnote: Rexpanded from macro 'ABSL_INTERNAL_X'I
BUT  E511_ | C A P T U R E D _ B YA(BtShLi_sI)N)T,E R N A L _ A T T R I B U T E _ C A P T U R E D _\B
Y      (| t                                                   ^h
is/usr/local/clang/include/absl/container/internal/common.h):)32): 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # d e f i n e   A B S L _\I
N      T| E                                                   ^R
NA/usr/local/clang/include/absl/container/internal/common.hL:_31I:F9_:f anote: lmacro 'ABSL_INTERNAL_IF_true' defined heres
e(i   f31_ | s#adteifsifniee dA,B S.L._.I)N T_E_RVNAA_LA_RIGFS__t_r
u      e| (        ^i
f_satisfiedIn file included from ,s2/s2max_distance_targets.cc :.28.:
.In file included from )../src/s2/s2furthest_edge_query.h :i33f:
_In file included from s../src/s2/s2closest_edge_query_base.ha:t32i:
sIn file included from f/usr/local/clang/include/absl/container/btree_set.hi:e66d:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 568        ^:
3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTIn file included from Es2/s2lax_polyline_shape.ccR:N18A:
LIn file included from _../src/s2/s2lax_polyline_shape.hX:(32i:
nIn file included from s../src/s2/s2polyline.he:r34t:
_In file included from o../src/s2/s2builder.hr:_36a:
sIn file included from s../src/s2/mutable_s2shape_index.hi:g30n:
,In file included from  /usr/local/clang/include/absl/container/btree_map.hi:n67s:
e/usr/local/clang/include/absl/container/internal/btree_container.hr:t524_:o3r:_ awarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
ign_h  i524n | t _ iAmBpSlL,_ IcNoTnEsRtN A&L,_ X&(&i,n
s      e| r  ^t
_o/usr/local/clang/include/absl/container/internal/btree_container.hr:_511a:s52s:i gnote: nexpanded from macro 'ABSL_INTERNAL_X',
 in  s511e | r t _ o r _ a s s i gAnB_SiLm_pIlN,T EcRoNnAsLt_ A&T,T RcIoBnUsTtE _&C,A
P      T| U  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~R
ED  _525B | Y ( t h i s ) ) )                    f a l s e ,   t r u e ) ; 
       \| 
                  ~~~~~~~~~~~~      
|                                                    ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/container/internal/common.h511::3247::9 : note: note: expanded from macro 'ABSL_INTERNAL_X'macro 'ABSL_INTERNAL_IF_false' defined here

     32511 |  | # d e f i n e   A B SALB_SILN_TIENRTNEARLN_AILF__AfTaTlRsIeB(UiTfE__sCaAtPiTsUfRiEeDd_,B Y.(.t.h)i s_)_)V)A _ A R G S _ _ 
        |          ^ 
            \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
In file included from   s2/s2max_distance_targets.cc496: | 28#:
dIn file included from e../src/s2/s2furthest_edge_query.hf:i33n:
eIn file included from  ../src/s2/s2closest_edge_query_base.hA:B32S:
LIn file included from _/usr/local/clang/include/absl/container/btree_set.hI:N66T:
E/usr/local/clang/include/absl/container/internal/btree_container.hR:N570A:L3_:X (warning: Fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
nc,   C570a | l l eAeB,S LK_QIuNaTlE,R NMAQLu_aXl(,i nKsVearltu_eo,r _MaVsasliugen,,  .i.n.s)e r t _ o r\_
a      s| s        ^i
gn_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: /usr/local/clang/include/absl/container/internal/btree_container.hmacro 'ABSL_INTERNAL_IF_false' defined here:
526:3:    32 | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
efin  e526  | A B SALB_SILN_TIENRTNEARLN_AILF__Xf(ailnssee(ritf__osra_taisssfiigend,,  i.n.s.e)r t___oVrA__aAsRsGiSg_n__
i      m| p        ^l
, const &,In file included from  s2/s2max_distance_targets.ccc:o28n:
sIn file included from t../src/s2/s2furthest_edge_query.h :&33,:

In file included from       ../src/s2/s2closest_edge_query_base.h| :  ^32
:
In file included from /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/container/internal/btree_container.h::66509:
:/usr/local/clang/include/absl/container/internal/btree_container.h52::570 :3note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  509 |     570  |      A B S L _AIBNSTLE_RINNATLE_RXN(AiLn_sAeTrTtR_IoBrU_TaEs_sCiAgPnT,U RiEnDs_eBrYt(_tohri_sa)s)s,i g n _ h i n t _ i m p l ,   c o n s t   & ,   &\&
,      
|                                                          ^| 
  ^
/usr/local/clang/include/absl/container/internal/common.h:/usr/local/clang/include/absl/container/internal/btree_container.h31::5119::52 : note: note: macro 'ABSL_INTERNAL_IF_true' defined hereexpanded from macro 'ABSL_INTERNAL_X'

   31   | 511# | d e f i n e   A B S LA_BISNLT_EIRNNTAELR_NIAFL__tArTuTeR(IiBfU_TsEa_tCiAsPfTiUeRdE,D _.B.Y.()t hiifs_)s)a)t i s f i e d 
        |          ^ 
             \
In file included from       s2/s2lax_polyline_shape.cc| :                                                   ^18
:
In file included from ../src/s2/s2lax_polyline_shape.h/usr/local/clang/include/absl/container/internal/common.h::3231:
:In file included from 9../src/s2/s2polyline.h:: 34note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
../src/s2/s2builder.h:36:
   In file included from 31../src/s2/mutable_s2shape_index.h | :#30d:
eIn file included from f/usr/local/clang/include/absl/container/btree_map.hi:n67e:
 /usr/local/clang/include/absl/container/internal/btree_container.hA:B526S:L3_:I Nwarning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
RNAL_  I526F | _ t rAuBeS(Li_fI_NsTaEtRiNsAfLi_eXd(,i n.s.e.r)t _iofr__saastsiisgfni,e di
n      s| e        ^r
t_or_assign_imIn file included from ps2/s2max_distance_targets.ccl:,28 :
cIn file included from o../src/s2/s2furthest_edge_query.hn:s33t:
 In file included from &../src/s2/s2closest_edge_query_base.h,: 32c:
oIn file included from n/usr/local/clang/include/absl/container/btree_set.hs:t66 :
&/usr/local/clang/include/absl/container/internal/btree_container.h,:
570      :| 3  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]527
 |        570  |      A B S L _ I N T E RtNrAuLe_,X (fianlsseer)t;_
o      r| _                  ~~~~~~~~~~~~a
ssi/usr/local/clang/include/absl/container/internal/btree_container.hg:n509,: 47i:n snote: eexpanded from macro 'ABSL_INTERNAL_X'r
t_o  r509_ | a s s i g n _ h i n tA_BiSmLp_lI,N TcEoRnNsAtL _&A,T T&R&I,B
U      T| E  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
CAP  T571U | R E D _ B Y ( t h i s ) ) ,          f a l s e ,   t r u e ,   c o n s t _ i\t
e      r| a                                              ^~~~t
or(hint/usr/local/clang/include/absl/container/internal/btree_container.h): 526A:B3S:L _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
TE/usr/local/clang/include/absl/container/internal/btree_container.hR:N511A:L52_:C Onote: Mexpanded from macro 'ABSL_INTERNAL_X'M
A);  
511       | |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 47 :A Bnote: Sexpanded from macro 'ABSL_INTERNAL_X'L
_IN  T511E | R N A L _ A T T R I BAUBTSEL__CIANPTTEURRNEADL__BAYT(TtRhIiBsU)T)E)_ C A P T U R E D _ B Y ( t h i s ) ) )          \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
      \32
 |       #| d                                              ^~~~e
fine ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      | /usr/local/clang/include/absl/container/internal/btree_container.h                            ^:
572:3/usr/local/clang/include/absl/container/internal/btree_container.h:: 496:warning: 9:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
note: macro 'ABSL_INTERNAL_X' defined here
  572 |    496  | A#BdSeLf_iInNeT EARBNSALL__IXN(TiEnRsNeArLt__Xo(rF_uanscs,i gCna,l lienes,e rKtQ_uoarl_,a sMsQiuganl_,h iKnVta_liumep,l ,M Vcaolnuset,  &.,. .&)& , 
        |    ^\

      | /usr/local/clang/include/absl/container/internal/btree_container.h        ^:
509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define/usr/local/clang/include/absl/container/internal/btree_container.h :A528B:S3L:_ Iwarning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
ERNA  L528_ | I F _AtBrSuLe_(IiNfT_EsRaNtAiLs_fXi(eidn,s e.r.t._)o ri_fa_sssaitgins,f iiends
e      r| t        ^_
or_assign_implIn file included from ,s2/s2max_distance_targets.cc :c28o:
nIn file included from s../src/s2/s2furthest_edge_query.ht: 33&:
,In file included from  ../src/s2/s2closest_edge_query_base.hc:o32n:
sIn file included from t/usr/local/clang/include/absl/container/btree_set.h :&66,:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 572  ^:
3: /usr/local/clang/include/absl/container/internal/btree_container.h:warning: 509'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
52: note: expanded from macro 'ABSL_INTERNAL_X'
  572 |     509A | B S L _ I N T E R N AALB_SXL(_iInNsTeErRtN_AoLr__AaTsTsRiIgBnU,T Ei_nCsAePrTtU_RoErD__aBsYs(itghni_sh)i)n,t _ i m p l ,   c o n s t   & ,   & & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
\
      |                                                      ^573
 |  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d etfriunee,  AfBaSlLs_eI,N TcEoRnNsAtL__iItFe_rtartuoer((ihfi_nsta)t iAsBfSiLe_dI,N T.E.R.N)A Li_fC_OsMaMtAi)s;f
i      e| d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |   In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 32A:
BIn file included from S../src/s2/s2polyline.hL:_34I:
NIn file included from T../src/s2/s2builder.hE:R36N:
AIn file included from L../src/s2/mutable_s2shape_index.h_:A30T:
TIn file included from R/usr/local/clang/include/absl/container/btree_map.hI:B67U:
T/usr/local/clang/include/absl/container/internal/btree_container.hE:_528C:A3P:T Uwarning: R'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
D_BY(  t528h | i s )A)B,S L _ I N T E R N A L _ X ( i n s e r t _ o r _ a\s
s      i| g                                              ^~~~n
, insert/usr/local/clang/include/absl/container/internal/btree_container.h_:o572r:_3a:s swarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]g
n/usr/local/clang/include/absl/container/internal/btree_container.h_:i511m:p52l:,  note: cexpanded from macro 'ABSL_INTERNAL_X'o
nst   511& | ,   c o n s t   & , 
A      B| S  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
_I  N529T | E R N A L _ A T T R I B U T E _ C A PtTrUuReE,D _tBrYu(et)h;i
s      )| )                  ~~~~~~~~~~~)
   /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |               \ 
        | A                                                   ^B
SL/usr/local/clang/include/absl/container/internal/common.h_:I32N:T9E:R Nnote: Amacro 'ABSL_INTERNAL_IF_false' defined hereL
_AT   T32R | I#BdUeTfEi_nCeA PATBUSRLE_DI_NBTYE(RtNhAiLs_)I)F,_ f a l s e ( i f _ s a t i s f i e d ,   . . . )\ 
_      _| V                                              ^~~~A
_ARGS__
      | /usr/local/clang/include/absl/container/internal/btree_container.h        ^:
528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(inIn file included from ss2/s2max_distance_targets.cce:r28t:
_In file included from o../src/s2/s2furthest_edge_query.hr:_33a:
sIn file included from s../src/s2/s2closest_edge_query_base.hi:g32n:
,In file included from  /usr/local/clang/include/absl/container/btree_set.hi:n66s:
e/usr/local/clang/include/absl/container/internal/btree_container.hr:t574_:o3r:_ awarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
ign_  i574m | p l ,A BcSoLn_sItN T&E,R NcAoLn_sXt( i&n,s
e      r| t  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
or  _529a | s s i g n ,   i n s e r t _ o r _ a stsriugen,_ htirnute_)i;m
p      l| ,                  ~~~~~~~~~~~ 
con/usr/local/clang/include/absl/container/internal/btree_container.hs:t511 :&47,:  &note: &expanded from macro 'ABSL_INTERNAL_X',

      |   ^  
511 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
ABS  L509_ | I N T E R N A L _ A TATBRSILB_UITNET_ECRANPATLU_RAETDT_RBIYB(UtThEi_sC)A)P)T U R E D _ B Y ( t h i s ) ) ,                  \ 
        |                                                ^~~~ 
          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2closest_edge_query_base.h532::3224:
:In file included from  /usr/local/clang/include/absl/container/btree_set.h:warning: 66:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/container/internal/btree_container.h
:574:3  :532  | warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        574  |      A B S L _ I NfTaElRsNeA)L;_
X      (| i                       ^n
se/usr/local/clang/include/absl/container/internal/btree_container.hr:t496_:o9r:_ anote: smacro 'ABSL_INTERNAL_X' defined heres
ign  ,496  | i#ndseefritn_eo rA_BaSsLs_iIgNnT_EhRiNnAtL__iXm(pFlu,n cc,o nCsatl l&e,e ,& &K,Q
u      a| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 M  Q575u | a l ,   K V a l u e ,   M V a l u e ,t r.u.e.,)  t r u e ,\ 
c      o| n        ^s
t_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTER/usr/local/clang/include/absl/container/internal/btree_container.hN:A531L:_3A:T Twarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
BUTE  _531C | A P TAUBRSELD__IBNYT(EtRhNiAsL)_)X)( i n s e r t _ o r _ a s s i g n ,   i n s e r t\_
o      r| _                                                   ^a
ss/usr/local/clang/include/absl/container/internal/common.hi:g31n:_9i:m pnote: lmacro 'ABSL_INTERNAL_IF_true' defined here,
 co   n31s | t# d&e,f i&n&e,  AfBaSlLs_eI,N
T      E| R  ^N
AL/usr/local/clang/include/absl/container/internal/btree_container.h_:I509F:_52t:r unote: eexpanded from macro 'ABSL_INTERNAL_X'(
if_  s509a | t i s f i e d ,   . .A.B)S Li_fI_NsTaEtRiNsAfLi_eAdT
T      R| I        ^B
UTE_CAPTUREIn file included from Ds2/s2max_distance_targets.cc_:B28Y:
(In file included from t../src/s2/s2furthest_edge_query.hh:i33s:
)In file included from )../src/s2/s2closest_edge_query_base.h,: 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 574 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        574  | \ 
       A| B                                                   ^S
L_/usr/local/clang/include/absl/container/internal/common.hI:N32T:E9R:N Anote: Lmacro 'ABSL_INTERNAL_IF_false' defined here_
X(i   n32s | e#rdte_foirn_ea sAsBiSgLn_,I NiTnEsReNrAtL__oIrF__afsaslisgen(_ihfi_nsta_tiimspfli,e dc,o n.s.t. )& ,_ _&V&A,_
A      R| G  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~S
__
        575|  |         ^ 
           In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.ht:r32u:
eIn file included from ,../src/s2/s2polyline.h :t34r:
uIn file included from e../src/s2/s2builder.h,: 36c:
oIn file included from n../src/s2/mutable_s2shape_index.hs:t30_:
iIn file included from t/usr/local/clang/include/absl/container/btree_map.he:r67a:
t/usr/local/clang/include/absl/container/internal/btree_container.ho:r531(:h3i:n twarning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
ABSL  _531I | N T EARBNSALL__ICNOTMEMRAN)A;L
_      X| (                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
nse/usr/local/clang/include/absl/container/internal/btree_container.hr:t511_:o47r:_ anote: sexpanded from macro 'ABSL_INTERNAL_X's
ign  ,511  | i n s e r t _ o r _ aAsBsSiLg_nI_NiTmEpRlN,A Lc_oAnTsTtR I&B,U T&E&_,C AfPaTlUsReE,D
_      B| Y  ^(
th/usr/local/clang/include/absl/container/internal/btree_container.hi:s511):)52):   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _\I
N      T| E                                              ^~~~R
NAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INT/usr/local/clang/include/absl/container/internal/btree_container.hE:R577N:A3L:_ Xwarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]F
unc,   577C | a l lAeBeS,L _KIQNuTaElR,N AMLQ_uXa(li,n sKeVratl_uoer,_ aMsVsailgune,,  i.n.s.e)r t _ o r _\a
s      s| i        ^g
n_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                                                   ^533
:3: /usr/local/clang/include/absl/container/internal/common.h:warning: 32:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]9
: note: macro 'ABSL_INTERNAL_IF_false' defined here  
533 |      32A | B#SdLe_fIiNnTeE RANBASLL__XI(NiTnEsReNrAtL__oIrF__afsaslisgen(,i fi_nssaetrits_foire_da,s s.i.g.n)_ i_m_pVlA,_ AcRoGnSs_t_ 
&      ,|          ^&
&, false,
      In file included from | s2/s2max_distance_targets.cc  ^:
28:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2furthest_edge_query.h::50933::
52In file included from :../src/s2/s2closest_edge_query_base.h :32note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/container/btree_set.h:66:
  /usr/local/clang/include/absl/container/internal/btree_container.h509: | 577 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
     A577B | S L _AIBNSTLE_RINNATLE_RANTATLR_IXB(UiTnEs_eCrAtP_ToUrR_EaDs_sBiYg(nt,h iisn)s)e,r t _ o r _ a s s i g n _ h i n t _ i m p l ,   &\&
,       | c                                                   ^o
ns/usr/local/clang/include/absl/container/internal/common.ht: 32&:,9
:       | note:   ^macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/container/internal/btree_container.h:   51132: | 52#:d enote: fexpanded from macro 'ABSL_INTERNAL_X'i
ne   A511B | S L _ I N T E R N A LA_BISFL__fIaNlTsEeR(NiAfL__sAaTtTiRsIfBiUeTdE,_ C.A.P.T)U R_E_DV_AB_YA(RtGhSi_s_)
)      )|          ^ 
          In file included from  s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 32 :
 In file included from  ../src/s2/s2polyline.h :\34
:
      In file included from | ../src/s2/s2builder.h                                                   ^:
36:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/mutable_s2shape_index.h::3230::
9In file included from :/usr/local/clang/include/absl/container/btree_map.h :67note: :
macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/container/internal/btree_container.h
:533:3   :32  | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
efin  e533  | A B SALB_SILN_TIENRTNEARLN_AILF__Xf(ailnssee(ritf__osra_taisssfiigend,,  i.n.s.e)r t___oVrA__aAsRsGiSg_n__
i      m| p        ^l
, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) In file included from is2/s2max_distance_targets.ccf:_28s:
aIn file included from t../src/s2/s2furthest_edge_query.hi:s33f:
iIn file included from e../src/s2/s2closest_edge_query_base.hd:
32      :
| In file included from         ^/usr/local/clang/include/absl/container/btree_set.h
:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s2lax_polyline_shape.cc  :57918 | :
 In file included from  ../src/s2/s2lax_polyline_shape.hA:B32S:
LIn file included from _../src/s2/s2polyline.hI:N34T:
EIn file included from R../src/s2/s2builder.hN:A36L:
_In file included from X../src/s2/mutable_s2shape_index.h(:i30n:
sIn file included from e/usr/local/clang/include/absl/container/btree_map.hr:t67_:
o/usr/local/clang/include/absl/container/internal/btree_container.hr:_533a:s3s:i gwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],
 inse  r533t | _ o rA_BaSsLs_iIgNnT_EhRiNnAtL__iXm(piln,s e&r&t,_ ocro_nassts i&g,n
,       | i  ^n
se/usr/local/clang/include/absl/container/internal/btree_container.hr:t509_:o52r:_ anote: sexpanded from macro 'ABSL_INTERNAL_X's
ign  _509i | m p l ,   c o n s t  A&B,S L&_&I,N TfEaRlNsAeL,_
A      T| T  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~R
IB  U534T | E _ C A P T U R E D _ B Y ( t h i s )t)r,u e ) ; 
        |                    ~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511\ | 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 32 : 9A:B Snote: Lmacro 'ABSL_INTERNAL_IF_false' defined here_
INT   E32R | N#AdLe_fAiTnTeR IABBUSTLE__ICNATPETRUNRAELD__IBFY_(ftahlisse)()i)f _ s a t i s f i e d ,   . . . )   _ _ V A _ A R\G
S      _| _                                              ^~~~

      |         ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, con/usr/local/clang/include/absl/container/internal/btree_container.hs:t536 :&24,:
       | warning:   ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/container/internal/btree_container.h:  511536: | 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                 f a lAsBeS)L;_
I      N| T                       ^E
RN/usr/local/clang/include/absl/container/internal/btree_container.hA:L496_:A9T:T Rnote: Imacro 'ABSL_INTERNAL_X' defined hereB
UTE  _496C | A#PdTeUfRiEnDe_ BAYB(StLh_iIn file included from IsN)s2/s2memory_tracker.ccT)E:)R18 N :
A LIn file included from  _../src/s2/s2memory_tracker.h X :( F29 u:
 n In file included from c ,../src/s2/util/gtl/compact_array.h  : C a56 l:
 lIn file included from  e ../src/s2/base/logging.he ,:  21 K :
Q uIn file included from  a\/usr/local/clang/include/absl/log/check.hl
:,       37| M                                                   ^:
Q
In file included from u/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/common.ha::l2131,:
: In file included from 9K/usr/local/clang/include/absl/log/internal/check_op.h:V: a41note: lmacro 'ABSL_INTERNAL_IF_true' defined here:
u
In file included from e/usr/local/clang/include/absl/log/internal/strip.h   ,:31 26 | M#:
Vdael/usr/local/clang/include/absl/log/internal/log_message.hfuie:n,e71  :.A26.B.:S) L warning: _ type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] I
 N T\E
R         N| A71        ^L | 
_ I FL_otgrMuees(siafg_es(actoinssfti ecdh,a r.*. .a)b silf__nsoantniuslfli efdi
l      e| ,        ^ 
int line,
      |                          ^
In file included from s2/s2max_distance_targets.cc:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2furthest_edge_query.h::2233::
 In file included from note: ../src/s2/s2closest_edge_query_base.hexpanded from macro 'absl_nonnull':
32:
In file included from   /usr/local/clang/include/absl/container/btree_set.h241: | 66#:
d/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/internal/btree_container.he::f535579i::n33e: :a  bwarning: warning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l

_no  n  535n579 | u | l l    A_ANBBSoSLLn__InINuNTTlElER
RNN      AAL| L__                     ^XX
((iinnsseerrtt__oorr__aassssiiggnn,,  iinnsseerrtt__oorr__aassssiiggnn__ihmipnlt,_ icmopnls,t  &&&,In file included from ,  &s2/s2memory_tracker.ccc&:o,n18 s:
ttIn file included from r ../src/s2/s2memory_tracker.hu&e:,,29

:
            In file included from | | ../src/s2/util/gtl/compact_array.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  ^:

56:
In file included from   /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/base/logging.h580:: | 509 21: :
52 In file included from : /usr/local/clang/include/absl/log/check.h  note: : expanded from macro 'ABSL_INTERNAL_X' 37
 :
 In file included from    /usr/local/clang/include/absl/log/internal/check_impl.h509 : |  21   :
   In file included from    /usr/local/clang/include/absl/log/internal/check_op.h  :  f41 a :
l sIn file included from AeB/usr/local/clang/include/absl/log/internal/strip.h,S :Lt26_rI:
uN/usr/local/clang/include/absl/log/internal/log_message.heT,:E 78RcN:oA26nLs:_t A_Twarning: iTtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tRe
IrBaUt   ToEr78_(C | h Ai PLnoTtUg)R MEAeDBs_SsBLaY_g(IetN(hTicEsoR)Nn)sA,tL _  Cc hO aM Mr A *)  ; 
a        b| s                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ l
 _ n/usr/local/clang/include/absl/container/internal/btree_container.h o: n511 n: u47 l: l   note:  expanded from macro 'ABSL_INTERNAL_X'f 
\i
l        e| 511                                                   ^, |  
i n/usr/local/clang/include/absl/container/internal/common.h t:  l31i :n 9 e: ,  
note:  macro 'ABSL_INTERNAL_IF_true' defined here       
A| B                            ^S31L
 | _#IdN/usr/local/clang/include/absl/base/nullability.heTf:EiR241nNe:A L22A_B:AST LTnote: _expanded from macro 'absl_nonnull'RII
NBT  UET241RE | N_A#CLdA_PeITfFU_iRtEnrDeu _eaBbYs((lit_fh_niossna)nt)iu)s lfl i  e d_ , N  o.n .n . u) l  li 
f       _ | s                      ^a t
 i s f i e d 
\      
|               ^| 
                                              ^~~~
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:In file included from 32s2/s2memory_tracker.cc:
:In file included from 18../src/s2/s2polyline.h:
:In file included from 34../src/s2/s2memory_tracker.h:
:In file included from 29../src/s2/s2builder.h:
:In file included from 36../src/s2/util/gtl/compact_array.h:
:In file included from 56../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/log/check.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h37::
535In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h3::21 :
In file included from warning: /usr/local/clang/include/absl/log/internal/check_op.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
  535/usr/local/clang/include/absl/log/internal/log_message.h | : 80 :A26B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTE   R80N | A L _LXo(giMnessesratg_eo(rc_oansssti gcnh,a ri*n saebrstl__onro_nansuslilg nf_iilmep,l ,i ncto nlsitn e&,,
       &| &                         ^,
 t/usr/local/clang/include/absl/base/nullability.hr:u241e:,22
:       | note:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nonnull'

  536   | 241  |  # d e f i n e   a b s l _ n o n nfual/usr/local/clang/include/absl/container/internal/btree_container.hll:s 581e_:)N3;o:
n       nwarning: | upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                  ~~~~~~l

l
        | /usr/local/clang/include/absl/container/internal/btree_container.h581                     ^: | 
509 : 47A:B Snote: Lexpanded from macro 'ABSL_INTERNAL_X'_
INT  E509R | N A L _ X ( i n s eIn file included from  rAts2/s2memory_tracker.ccB_S:oLr18__I:
aNIn file included from sT../src/s2/s2memory_tracker.hsE:iRg29NnA:
,LIn file included from  _../src/s2/util/gtl/compact_array.hiAn:Ts56Te:
RrIIn file included from tB../src/s2/base/logging.h_Uo:Tr21E_:
_aIn file included from CsA/usr/local/clang/include/absl/log/check.hsP:iTg37UnR:
_EhIn file included from Di/usr/local/clang/include/absl/log/internal/check_impl.h_nB:tY_21(it:
mhpIn file included from ils/usr/local/clang/include/absl/log/internal/check_op.h,) :)&,&41 , :
  In file included from c /usr/local/clang/include/absl/log/internal/strip.ho n: s26 t :
  &/usr/local/clang/include/absl/log/internal/log_message.h , 
:        82|  :  ^ 26
 : /usr/local/clang/include/absl/container/internal/btree_container.h  : warning: 509 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: 
52 :     note:  expanded from macro 'ABSL_INTERNAL_X'82\

 |        |                                                  ^~~~509L
 | o g M e /usr/local/clang/include/absl/container/internal/btree_container.h s:s 535 a: g3e (: c Aowarning: Bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nS
Ls/usr/local/clang/include/absl/container/internal/btree_container.ht_: I511Nc:Th52Ea:Rr *N note: Aexpanded from macro 'ABSL_INTERNAL_X'La
_bAsT  Tl511R_ | nI oB Un T En _ uC Al Pl  Tf iUAlReE,B DS_iLnB_tYI (NtlThEiinRsNe)A,)L
,_       A T|  T                          ^R 
I B/usr/local/clang/include/absl/base/nullability.h U :T E241 _: C 22A P: T  U note: Rexpanded from macro 'absl_nonnull' E 
D _   B 241Y  | ( t# h\die
fs      )i| )n                                                   ^)e
   /usr/local/clang/include/absl/container/internal/common.h a:b 31 s: l9 _: n  o nnote:  nmacro 'ABSL_INTERNAL_IF_true' defined here u
 l     l31   |  #_ d Ne fo in nn eu  l\lA
B
      S      | L                                                   ^| _
I                     ^N/usr/local/clang/include/absl/container/internal/common.h
T:E32R:N9A:L _note: Imacro 'ABSL_INTERNAL_IF_false' defined hereF
_tr   u32e | (#idfe_fsiantei sAfBiSeLd_,I N.T.E.R)N AiLf__IsFa_tfiaslfsiee(di
f      _| s        ^a
tisfied, ...) _In file included from _s2/s2max_distance_targets.ccV:A28_:
AIn file included from R../src/s2/s2furthest_edge_query.hG:S33_:
_In file included from 
../src/s2/s2closest_edge_query_base.h      :| 32        ^:

In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, inIn file included from ss2/s2memory_tracker.cce:r18t:
_In file included from o../src/s2/s2memory_tracker.h:r29_:
aIn file included from s../src/s2/util/gtl/compact_array.hs:i56g:
nIn file included from _../src/s2/base/logging.hh:i21n:
tIn file included from _/usr/local/clang/include/absl/log/check.hi:m37p:
lIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :&21&:
,In file included from  /usr/local/clang/include/absl/log/internal/check_op.hc:o41n:
In file included from sIn file included from s2/s2lax_polyline_shape.cct/usr/local/clang/include/absl/log/internal/strip.h: :18&26:
,:
In file included from 
/usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2lax_polyline_shape.h      ::| 119  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~32:
:
41In file included from :../src/s2/s2polyline.h   :582warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | :
 
In file included from  ../src/s2/s2builder.h :   36 119:
  | In file included from    ../src/s2/mutable_s2shape_index.hL : o30 g:
M In file included from  e/usr/local/clang/include/absl/container/btree_map.h s:s 67 a:
 g/usr/local/clang/include/absl/container/internal/btree_container.h e: &538 t:Tr23uo:Se ,warning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] n
kfA  al538ls | s e o,  ( acb so nl s :t _: i Lt oe gr aS it no r k(t*hr iunaetb))s;l 
_A      Bn| So                      ^Ln
_nI/usr/local/clang/include/absl/container/internal/btree_container.huNl:lT496E :Rs9Ni:An Lknote: )macro 'ABSL_INTERNAL_X' defined here_;
C
O      M  M| 496                                        ^A | 
)#;/usr/local/clang/include/absl/base/nullability.hd
:e      f241| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:n
e22 :/usr/local/clang/include/absl/container/internal/btree_container.hA :Bnote: 509expanded from macro 'absl_nonnull'S:L
47_:   note: Iexpanded from macro 'ABSL_INTERNAL_X'241N
T | E#R  dNe509fA | iLn _e X  ( aF bu ns lc_ , n  oCAanBlnSlLue_elI,lN T KE_QNRuNoaAlnL,n_ uAMlTQTluR
aIl      B,U|  TK                     ^EV_
aClAuPeT,U RMEVDa_lBuYe(,t h.i.s.))In file included from ) s2/s2memory_tracker.cc, :  18  :
   \In file included from  
../src/s2/s2memory_tracker.h       : |  29        ^ :

 In file included from  ../src/s2/util/gtl/compact_array.h : 56 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
\In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                              ^~~~:

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/log_message.h::581121::341::  warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:511:  52121: |   note:  expanded from macro 'ABSL_INTERNAL_X'L
ogM  e511s | s a g e &   T o S i nAkBOSnLl_yI(NaTbEsRl/usr/local/clang/include/absl/container/internal/btree_container.hN:::A537LL:o_3gA:TS Tiwarning: Rnpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]Ik
*B U  aT537Eb | s_l _C nAAPoBnTSUnLuRl_lEID Ns_iTnBEkYR()NtA;hLi
_sX      )(| )i)                                        ^n s
 e /usr/local/clang/include/absl/base/nullability.hr t: _ 241 o :r _22 a :s  s note: iexpanded from macro 'absl_nonnull' g 
n ,     241i n |  s #ed re tf _i\o
nr      e_|  a                                                   ^sa
bss/usr/local/clang/include/absl/container/internal/common.hil:g_32nn:_o9in:mn punote: llmacro 'ABSL_INTERNAL_IF_false' defined here,l
  c   _o32nN | s#otd ne&fn,ui nl&e&l ,
A B      tSr| Lu                     ^_eI
,N
T      E| R  ^N
AL/usr/local/clang/include/absl/container/internal/btree_container.h_:I509F:_52f:a lnote: sexpanded from macro 'ABSL_INTERNAL_X'e
(if  _509s | a t i s f i e d ,   .A.B.S)L __I_NVTAE_RANRAGLS__A_T
T      R| I        ^B
UTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
In file included from    s2/s2memory_tracker.cc31: | 18#:
dIn file included from e../src/s2/s2memory_tracker.hf:i29n:
eIn file included from  ../src/s2/util/gtl/compact_array.hA:B56S:
LIn file included from _../src/s2/base/logging.hI:N21T:
EIn file included from R/usr/local/clang/include/absl/log/check.hN:A37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hF:_21t:
rIn file included from u/usr/local/clang/include/absl/log/internal/check_op.he:(41i:
fIn file included from _/usr/local/clang/include/absl/log/internal/strip.hs:a26t:
i/usr/local/clang/include/absl/log/internal/log_message.hs:f158i:e32d:,  warning: .type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension].
.)   i158f | _ s aLtoigsMfeisesda
g      e| &        ^ 
operator<<(voidIn file included from *s2/s2lax_polyline_shape.cc :a18b:
sIn file included from l../src/s2/s2lax_polyline_shape.h_:n32u:
lIn file included from l../src/s2/s2polyline.ha:b34l:
eIn file included from  ../src/s2/s2builder.h :v36):
 In file included from {../src/s2/mutable_s2shape_index.h
:      30| :
                               ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h257::53723::In file included from 3 s2/s2max_distance_targets.cc:note: : expanded from macro 'absl_nullable'28warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from   ../src/s2/s2furthest_edge_query.h257: | 33  #:
537dIn file included from e | f../src/s2/s2closest_edge_query_base.hi n:e  32aAb:
sBlIn file included from _Sn/usr/local/clang/include/absl/container/btree_set.huLl:l_66aI:
b/usr/local/clang/include/absl/container/internal/btree_container.hNl:Te583 E_:NRu3lNl:aAb Llwarning: _epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]X

(      i| n  s                      ^583e
 | r t _AoBrS_La_sIsNiTgEnR,N AiLn_sIn file included from Xe(s2/s2memory_tracker.ccrit:n_18soe:
rr_In file included from ta../src/s2/s2memory_tracker.h_s:os29ri:
_ganIn file included from s_s../src/s2/util/gtl/compact_array.hiimg:pnl56,, :
 icIn file included from nos../src/s2/base/logging.hne:srt21t _:
&o,In file included from r _/usr/local/clang/include/absl/log/check.h&a&:s,s 37itg:
rnuIn file included from _eh/usr/local/clang/include/absl/log/internal/check_impl.h,i
:n      t21| _:
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~iIn file included from 
m/usr/local/clang/include/absl/log/internal/check_op.h  p:538l41 | , :
  &In file included from  & /usr/local/clang/include/absl/log/internal/strip.h,  : c 26o n :
s /usr/local/clang/include/absl/log/internal/log_message.h t :  & 161, :
 38       :|    ^ twarning: 
rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
/usr/local/clang/include/absl/container/internal/btree_container.he:)509  ;:
16152       | :|                     ~~~~~ note: L
expanded from macro 'ABSL_INTERNAL_X'o
g/usr/local/clang/include/absl/container/internal/btree_container.hM:  e509509s: | s47 a : g  enote:  expanded from macro 'ABSL_INTERNAL_X'& 
   o    p509Ae | B rS aL _t Io N rT E< R< (N AcALBo_SAnLTs_TItRN ITBvEUoRiTNdEA_*L C_aAAbPTsTTlUR_RIEnBDuU_lTlBaEbY_(lCtAehPi TsU )R)vE,D) _  B {Y
 (       t h|  i                                      ^s )
 ) , /usr/local/clang/include/absl/base/nullability.h   :   257   :  23   :     note:  expanded from macro 'absl_nullable'   
     \ 257
  |        #|                                                     ^d 
e f/usr/local/clang/include/absl/container/internal/common.h i:n 31e :  9 a:b\s 
lnote:       macro 'ABSL_INTERNAL_IF_true' defined here_| 
                                              ^~~~n
u   l31l | a#bd/usr/local/clang/include/absl/container/internal/btree_container.hle:fe537i :n_3Ne: u Awarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]Bl
S/usr/local/clang/include/absl/container/internal/btree_container.haL:_b511Il:eN52T
:E       R| note: Nexpanded from macro 'ABSL_INTERNAL_X'                      ^A
L
_  I511F | _ t r u e ( i f _ s aAtBiSsLf_iIeNdT,E R.N.A.L)_ AiTfT_RsIaBtUiTsEf_iCeAdP
T      U| R        ^E
D_BY(this)))   In file included from  s2/s2max_distance_targets.cc : 28 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 33 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h :\583
:      3| :                                                   ^ 
warning: /usr/local/clang/include/absl/container/internal/common.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
31:9: note:   macro 'ABSL_INTERNAL_IF_true' defined here583
 | In file included from     s2/s2memory_tracker.cc 31A: | B18#Sd:
LeIn file included from _f../src/s2/s2memory_tracker.hIiNnT:eE 29RANB:
ASIn file included from LL_../src/s2/util/gtl/compact_array.h_XI:(N56iTn:
EsIn file included from ReN../src/s2/base/logging.hrA:tL_21_oIr:
F_In file included from _at/usr/local/clang/include/absl/log/check.hsr:sui37eg(:
ni,In file included from f _/usr/local/clang/include/absl/log/internal/check_impl.his:nast21eir:
stfIn file included from _io/usr/local/clang/include/absl/log/internal/check_op.herd:_,a41 s.:
s.iIn file included from .g/usr/local/clang/include/absl/log/internal/strip.h)n :_ih26fi:
_n/usr/local/clang/include/absl/log/internal/log_message.hst:a_t179ii:msp35fli:,ed
      |         ^
  warning: &type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]&
, c  o179In file included from n | s2/s2lax_polyline_shape.ccs : t18 L:
&oIn file included from g,../src/s2/s2lax_polyline_shape.hM
:e      32s| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~sIn file included from a
../src/s2/s2polyline.hg:e  34&584:
  | In file included from  o../src/s2/s2builder.h p: e36r :
a In file included from  t../src/s2/mutable_s2shape_index.h o: r30< :
 <In file included from In file included from  (/usr/local/clang/include/absl/container/btree_map.hs2/s2metrics.cc w:: c6731 h:
:
/usr/local/clang/include/absl/container/internal/btree_container.h aIn file included from : r../src/s2/s2metrics.h537 _:t: 34*3t:
 :rIn file included from a u../src/s2/s2coords.hbwarning: e:s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],108l
 :
_tIn file included from n  r../src/s2/s2point.hu537u:l | e 24l, :
a AcIn file included from bBoS/usr/local/clang/include/absl/hash/hash.hlnL:es_89 tI_N:
viTIn file included from )tEe/usr/local/clang/include/absl/hash/internal/hash.h;Rr:
NaA89      tL:
| o_rIn file included from                                   ^X(/usr/local/clang/include/absl/numeric/int128.h
(h:iin/usr/local/clang/include/absl/base/nullability.h41nt::
s)/usr/local/clang/include/absl/types/compare.h257e r::AtB7823_So::Lr_22 _I:note: aNs expanded from macro 'absl_nullable'TsEwarning: 
iRgN'enable_if' is a clang extension [-Wgcc-compat]  nA,
257L _ | i   C#n78Ods | Mee Mfr Ait )n_ ;eo 
 r       a__| ba_                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ssa
lst/usr/local/clang/include/absl/container/internal/btree_container.h_it:ngr509uni:l_b47liu:amt bnote: pelexpanded from macro 'ABSL_INTERNAL_X'l_e
,_  (_c  (Neo509unln | salbalb t el_  &ei f,
 (        n&|   &                      ^ =,
 =  t A0rBu,Se L,_"
IO      Nn| lT  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Ey
R   lNi538At | eL _r aA lT  T R` 0I `B  In file included from U is2/s2memory_tracker.ccsT E:  _18a lC:
 lAIn file included from  oP../src/s2/s2memory_tracker.h wT: eU29 dR:
 .EIn file included from t"D../src/s2/util/gtl/compact_array.hr)_:u)B56e)Y:
) (In file included from ;{t../src/s2/base/logging.h
}h:      
i21|       s:
                  ~~~~~| )In file included from 
                     ^)/usr/local/clang/include/absl/log/check.h
,/usr/local/clang/include/absl/container/internal/btree_container.h: : 37511 :
: In file included from  47 /usr/local/clang/include/absl/log/internal/check_impl.h: :  21note:  :
expanded from macro 'ABSL_INTERNAL_X' In file included from 
 /usr/local/clang/include/absl/log/internal/check_op.h :   41511 :
 |  In file included from   /usr/local/clang/include/absl/log/internal/strip.h   :   26  :
  /usr/local/clang/include/absl/log/internal/log_message.h   :   190 \:A
B42      S:| L                                               ^~~~_warning: 
Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN/usr/local/clang/include/absl/container/internal/btree_container.h  A:190L583_ | :A 3 T:TL Rowarning: Igpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]BM
Ue/usr/local/clang/include/absl/container/internal/btree_container.hTs:sEa511g_:eC52A&:P  Tonote: Uexpanded from macro 'ABSL_INTERNAL_X'pR
EeDr  _a511Bt | Y o( t rh i< s <) )( ) s  t dA: :B So sLt r_ eI aN Tm &E  (R N* Aa Lb s_ lA T_ Tn R oI Bn Un Tu El\_
lC       A| Pm                                              ^~~~T)
U(RsEtDd_:B:Yo(stthriesa)m)&)  o s ) ) ; 
        |                                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241\ | 
#      d| e                                                   ^f
in/usr/local/clang/include/absl/container/internal/common.he: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l |  #_dNeofninnuel lA
B      S| L                     ^_
I/usr/local/clang/include/absl/container/internal/btree_container.hN:T541E:R24N:A Lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
F_t  r541u | e ( i f _ s a t i s f In file included from i es2/s2memory_tracker.cc d: ,18   :
. .In file included from  .../src/s2/s2memory_tracker.hf)a: l29isf:
e_In file included from )s../src/s2/util/gtl/compact_array.h;a
:t      56i| s:
                       ^fIn file included from 
i../src/s2/base/logging.h/usr/local/clang/include/absl/container/internal/btree_container.he::d21496
:
:      In file included from 9| /usr/local/clang/include/absl/log/check.h:        ^: 
37note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  In file included from 496/usr/local/clang/include/absl/log/internal/check_op.h | :#41dIn file included from :
es2/s2max_distance_targets.ccIn file included from f:i/usr/local/clang/include/absl/log/internal/strip.h28n::
e26In file included from  :
../src/s2/s2furthest_edge_query.hA/usr/local/clang/include/absl/log/internal/log_message.h:B:33S191:
L:In file included from _43../src/s2/s2closest_edge_query_base.hI::N 32warning: T:
Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from R
/usr/local/clang/include/absl/container/btree_set.hN:A66L  :
_191/usr/local/clang/include/absl/container/internal/btree_container.hX | :( 583F :uL3no:cg ,Mwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] s
Csaal  gle583e& | e  ,o  ApKBeQrSuaLtao_lrI,<N T<MEQ(RuNsaAtlL,d_ :XK(:Viiaonlsueer,t _MoVra_lauses,i g.n.,. )i n s e r t\_
o      r| _        ^a
ssign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, tsr_ubea,s ec&o n(s*ta_bistle_rnaotnonru(lhli nmt))( sAtBdS:L:_iIoNsT_EbRaNsAeL&_ CoOsM)M)A;)
;      
|                                                 ^| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h:::540241511:::32247:::   warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_INTERNAL_X'

    540241   |  | 511 # |  d eA fB iS nL _eI  N aT bE Rs lN_AAnBLSo_LnXn_(IuiNlnTslE Re_NrNAtLo__onArTn_TuaRlsIlsB
iU      gTn| E                     ^,_ 
CiAnPsTeUrRtE_Do_rB_Ya(stshiigsn)_)i)m p l ,   & & ,   c o n s t   & ,   f a l s e , 
\      
|         ^| 
                                              ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_imp/usr/local/clang/include/absl/container/internal/btree_container.hl:,586 :&3&:,  warning: cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nst   &586, |   f aAlBsSeL,_
I      N| T  ^E
RN/usr/local/clang/include/absl/container/internal/btree_container.hA:L511_:X52(:i nnote: sexpanded from macro 'ABSL_INTERNAL_X'e
rt_  o511r | _ a s s i g n ,   i nAsBeSrLt__IoNrT_EaRsNsAiLg_nA_ThTiRnItB_UiTmEp_lC,A P&T&U,R In file included from E&Ds2/s2memory_tracker.cc&_:,B18 Yf:
(atIn file included from lh../src/s2/s2memory_tracker.hsi:es29,):

)In file included from       )../src/s2/util/gtl/compact_array.h|  :  ^ 56
 :
 /usr/local/clang/include/absl/container/internal/btree_container.hIn file included from  : ../src/s2/base/logging.h509 :: 2152 :
: In file included from   /usr/local/clang/include/absl/log/check.hnote:  expanded from macro 'ABSL_INTERNAL_X': 
      37509 :
 |   In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h  :  21   :
  \In file included from  
 /usr/local/clang/include/absl/log/internal/check_op.h       :A| 41B                                                   ^S:

LIn file included from _/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/log/internal/strip.hI:N:32T26:E:
9R:N/usr/local/clang/include/absl/log/internal/log_message.h A:note: Lmacro 'ABSL_INTERNAL_IF_false' defined here306_
A:T3T   R:32I  | B#warning: Udtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]TeE
f_iCnA  eP 306TAU | B R SEaLbDs_l__IBnNYTo(EtnRnhNuiAlsLl)_) I,sF _t fd a: l: s ue (n i if _q su a et _i ps ft ir <eL odg ,M  e s. .s .a\)
g       _e| _D                                                   ^Va
At_/usr/local/clang/include/absl/container/internal/common.haA>:R 32Gd:Sa9_t:_a 
_note:       macro 'ABSL_INTERNAL_IF_false' defined here;| 

        ^
   32 | #define ABSL_INTERNAL_IF_false(if_satisfIn file included from is2/s2lax_polyline_shape.cce:d18,:
 In file included from .../src/s2/s2lax_polyline_shape.h.:.32):
 In file included from _../src/s2/s2polyline.h_:V34A:
_In file included from A../src/s2/s2builder.hR:G36S:
_In file included from _../src/s2/mutable_s2shape_index.h
:      30| :
        ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
s2/s2max_distance_targets.cc:28:
  In file included from 543../src/s2/s2furthest_edge_query.h | : 33 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 586 : 3 :t rwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
);
        | 586                      ^ | 
  /usr/local/clang/include/absl/container/internal/btree_container.hA:B496S:L9_:I Nnote: Tmacro 'ABSL_INTERNAL_X' defined hereE
RNA  L496_ | X#(dienfsienret _AoBrS_La_sIsNiTgEnR,N AiLn_sXe(rFtu_nocr,_ aCsaslilgene_,h iKnQtu_ailm,p lM,Q u&a&l,,  &K&V,a lfuael,s eM,V
a      l| u  ^e
, /usr/local/clang/include/absl/container/internal/btree_container.h.:.511.:)52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
\
      |           ^511
 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, falIn file included from ss2/s2max_distance_targets.cce:,28
:
      In file included from | ../src/s2/s2furthest_edge_query.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
33:
In file included from   ../src/s2/s2closest_edge_query_base.h543: | 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 66 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 588 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
  tr  u588e | ) ; 
A      B| S                  ~~~~~L
_IN/usr/local/clang/include/absl/container/internal/btree_container.hT:E511R:N47A:L _note: Xexpanded from macro 'ABSL_INTERNAL_X'(
inse  r511t | _ o r _ a s s i g n ,A BiSnLs_eIrNtT_EoRrN_AaLs_sAiTgTnR_IhBiUnTtE__iCmApPlT,U R&E&D,_ B&Y&(,t hfiasl)s)e), 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |       \ 
        |                                                ^~~~ 
  ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, /usr/local/clang/include/absl/container/internal/btree_container.h.:.545.:)24 :_ _warning: Vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A
_AR  G545S | _ _ 
        |          ^ 
          In file included from  s2/s2max_distance_targets.cc :f28a:
lIn file included from s../src/s2/s2furthest_edge_query.he:)33;:

In file included from       ../src/s2/s2closest_edge_query_base.h| :                       ^32
:
In file included from /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/container/internal/btree_container.h::66496:
:/usr/local/clang/include/absl/container/internal/btree_container.h9::588 :3note: :macro 'ABSL_INTERNAL_X' defined here 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  496 | #  d588e | f i nAeB SALB_SILN_TIENRTNEARLN_AXL(_iXn(sFeurntc_,o rC_aalslseieg,n ,K Qiunasle,r tM_Qoura_la,s sKiVganl_uhei,n tM_Viamlpule,,  &.&.,. )& & ,   f a\l
s      e| ,        ^

      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_IN/usr/local/clang/include/absl/container/internal/btree_container.hT:E544R:N3A:L _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]F
_tru  e544( | i f _AsBaStLi_sIfNiTeEd,R N.A.L._)X (iifn_sseartti_sofri_eads
s      i| g        ^n
, insert_or_assiIn file included from gs2/s2max_distance_targets.ccn:_28i:
mIn file included from p../src/s2/s2furthest_edge_query.hl:,33 :
&In file included from &../src/s2/s2closest_edge_query_base.h,: 32c:
oIn file included from n/usr/local/clang/include/absl/container/btree_set.hs:t66 :
&/usr/local/clang/include/absl/container/internal/btree_container.h,: 588t:r3u:e ,warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:  509588: | 52 :  Anote: Bexpanded from macro 'ABSL_INTERNAL_X'S
L_I  N509T | E R N A L _ X ( i n sAeBrStL__oIrN_TaEsRsNiAgLn_,A TiTnRsIeBrUtT_Eo_rC_AaPsTsUiRgEnD__hBiYn(tt_hiimsp)l),,  & & ,   & & ,   f a l s e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
      589  | \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
  t   r31u | e#,d ecfoinnset _AiBtSeLr_aItNoTrE(RhNiAnLt_)I FA_BtSrLu_eI(NiTfE_RsNaAtLi_sCfOiMeMdA,) ;.
.      .| )                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
if_/usr/local/clang/include/absl/container/internal/btree_container.hs:a511t:i47s:f inote: eexpanded from macro 'ABSL_INTERNAL_X'd

      |         ^  
511 |           ABSLIn file included from _s2/s2lax_polyline_shape.ccI:N18T:
EIn file included from R../src/s2/s2lax_polyline_shape.hN:A32L:
_In file included from A../src/s2/s2polyline.hT:T34R:
IIn file included from B../src/s2/s2builder.hU:T36E:
_In file included from C../src/s2/mutable_s2shape_index.hA:P30T:
UIn file included from R/usr/local/clang/include/absl/container/btree_map.hE:D67_:
B/usr/local/clang/include/absl/container/internal/btree_container.hY:(544t:h3i:s )warning: )'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes])
        544  |      A B S L _ I N T E R N A L _ X\(
i      n| s                                              ^~~~e
rt_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATIn file included from Ts2/s2measures.ccR:I23B:
UIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hT../src/s2/s2edge_crossings.h:E:590_41:C:
3AIn file included from :P../src/s2/s1chord_angle.h T:warning: Upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R31
E:
DIn file included from _../src/s2/s2pointutil.h  B:590Y27 | (:
 t ../src/s2/util/math/matrix3x3.hhAi:BsS)276L)_:)I 5N T: E  R Nwarning:  Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] L
 _ X ( i   n 276s e |  r  t  _  o  r S_ a2 s_ s Ci\Hg
nE      ,C|  K                                                   ^i_
nNs/usr/local/clang/include/absl/container/internal/common.hEe:r(32td:_e9ot:r, _ note: aVmacro 'ABSL_INTERNAL_IF_false' defined heresT
ysp   ie32(g | 0n#_)d)he if<nit<n _e"i m ApBClS,aLn _'&It&N, T Ei&R&nN,vAe Ltr_rsIuFee_,.f
a       lD| se  ^et
(ei/usr/local/clang/include/absl/container/internal/btree_container.hfr:_m509si:an52ta:in stnote:  expanded from macro 'ABSL_INTERNAL_X'=f 
i0e.  d"509,; |   
. .       .|  )    ^   
_ _ V A../src/s2/base/logging.h _:AAB37RSG:LS21__I:_N
 T      Enote: | R        ^expanded from macro 'S2_CHECK_NE'N

AL   _37A | T#TdReIfBiUnTeE _SC2A_PCTHUERCEKD__NBEY (CtHhEiCsK)_)N,E 
        |                      ^ 
  /usr/local/clang/include/absl/log/check.h : 120 : 3 :   note:  expanded from macro 'CHECK_NE' 
      120  |      A\B
S      L| _                                                   ^L
OG/usr/local/clang/include/absl/container/internal/common.h_:I31NIn file included from :Ts2/s2lax_polyline_shape.cc9E::R18 Nnote: A:
macro 'ABSL_INTERNAL_IF_true' defined hereLIn file included from 
_../src/s2/s2lax_polyline_shape.hC:H   32E31:
C | In file included from #K../src/s2/s2polyline.hd_:Ne34fE:
i_In file included from nI../src/s2/s2builder.hMeP: L36A(:
(BIn file included from Sv../src/s2/mutable_s2shape_index.hLa:_l301I:
N)In file included from T,/usr/local/clang/include/absl/container/btree_map.hE :R#67Nv:
Aa/usr/local/clang/include/absl/container/internal/btree_container.hLl:1_547,I: F23_(:tv rawarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]le
(2i  f)547_, | s  a# t vi sa fl i 2e d) ,
         . | . .  ^ )
   /usr/local/clang/include/absl/log/internal/check_impl.hi f :_ts51rau:te3i)s:;f
 i      note: e| expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'd                      ^


      |         ^/usr/local/clang/include/absl/container/internal/btree_container.h   
:51496 | : 9 :A Bnote: Smacro 'ABSL_INTERNAL_X' defined hereL
_In file included from L  s2/s2max_distance_targets.ccO496:G | 28#_:
dIIn file included from eN../src/s2/s2furthest_edge_query.hfT:iE33RnN:
eAIn file included from L _../src/s2/s2closest_edge_query_base.hAC:BH32SE:
LCIn file included from _K/usr/local/clang/include/absl/container/btree_set.hINTER_:NO66AP:
L/usr/local/clang/include/absl/container/internal/btree_container.h(_C:hXe590(c:Fk3u_:nN cEwarning: ,, 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] !
C=a,l l  ev590ea | ,l   1KAQ,BuS avLal_,Il 1N_MTtQEeuRxatN,lA ,vLa _KXlV(a2iln,use e,vr atM_lVoa2rl__uaets,es ix.gt.n).,
)        i n|  s  ^ e 
r\t
/usr/local/clang/include/absl/log/internal/check_op.h_      o:| r        ^68_
a:s22s:i gnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'_
hin   t68_ | i m pwlh,i l&e& ,( c&o&n,s tt rcuhea,r
*       | a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl_  n591u | l l a b l e   a b s l _ l o g _ i n tfearlnsael,_ cchoencskt__oipt_e/usr/local/clang/include/absl/container/internal/btree_container.hrr:ea546st:uo3lr:(t h warning:  i passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n 
 t )     546A  |  B  S\ L
A_      BIS| N                     ^LT
_EIRN/usr/local/clang/include/absl/base/nullability.hNT:AEL257R_N:CAO23LM_:MXA ()inote: ;n
sexpanded from macro 'absl_nullable'      e
| r                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  t
_257o/usr/local/clang/include/absl/container/internal/btree_container.h | r:_#509ad:se47sf:ii gnnote: neexpanded from macro 'ABSL_INTERNAL_X', 
 aib  ns509ls | e_ r nt _u o lrl _ aa sb sl iAgBeIn file included from nS_ Li__mINpNluT,E lRs2/s2memory_tracker.cc&lN:&aAb18l,L _:
ecAIn file included from 
oTn../src/s2/s2memory_tracker.h      TsR:| tI 29&                      ^B:
,
UIn file included from  Tt../src/s2/util/gtl/compact_array.hEr:_u56CeA:
,P
In file included from T      U../src/s2/base/logging.h| R  ^:E
21D:
/usr/local/clang/include/absl/container/internal/btree_container.h_In file included from :B/usr/local/clang/include/absl/log/check.h509Y::(3752t:
:hIn file included from  i/usr/local/clang/include/absl/log/internal/check_impl.hnote: sexpanded from macro 'ABSL_INTERNAL_X':)
)21,:
   In file included from 509 /usr/local/clang/include/absl/log/internal/check_op.h |  :   41    :
   In file included from   /usr/local/clang/include/absl/log/internal/strip.hIn file included from   :s2/s2measures.cc   26:  :
23 A/usr/local/clang/include/absl/log/internal/log_message.h:
 B:In file included from  S 319../src/s2/s2edge_crossings.hL ::_ I20N41 :T:
  Ewarning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] R ../src/s2/s1chord_angle.h
N :A 31  L\_
:
319A      TIn file included from  | |  T../src/s2/s2pointutil.h                                              ^~~~ R:
 I27 B:
cU../src/s2/util/math/matrix3x3.ho/usr/local/clang/include/absl/container/internal/btree_container.hT:n:E276s590_:t:C5 3A:w:P c Twarning: hwarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R
r
E_../src/s2/base/logging.ht/usr/local/clang/include/absl/container/internal/btree_container.hD:*:_37 511B:a:Y21b52(:s:t l hnote: _expanded from macro 'S2_CHECK_NE'note: in
uexpanded from macro 'ABSL_INTERNAL_X'sl
   )l37a)  , | b511 #ld |   e e   f c i o n n e s   t S & 2   _ vAC )BH ;SE 
LC       _K | I_                    ^NN 
TE  E/usr/local/clang/include/absl/base/nullability.h CR: HN257 EA: CL23 K_:\_A 
NTnote: Texpanded from macro 'absl_nullable'      ER
| 
I                                                   ^        B
U257| T/usr/local/clang/include/absl/container/internal/common.h |                     ^E:_#
31CdA:P/usr/local/clang/include/absl/log/check.hTe9:Uf:120Ri :note: Emacro 'ABSL_INTERNAL_IF_true' defined hereDn3e
_: BaYb    (note: s31texpanded from macro 'CHECK_NE'l | h#
_in  dse)u120f)l | li)n a e  bA  lBeA BS  S L_L __NL IuOl NGl_ T aIbE RNlT N eE
A LR       _ N| AI F                      ^L _
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_f      N_| Es                                                   ^a_
tIi/usr/local/clang/include/absl/container/internal/common.hMsP:fL32i(:e(9dv:,a  lnote: 1.macro 'ABSL_INTERNAL_IF_false' defined here).,
. In file included from )#   s2/s2memory_tracker.cc v32:ia | 18fl#:
_1dIn file included from s,e../src/s2/s2memory_tracker.ha f:t(i29ivn:
saeIn file included from fl ../src/s2/util/gtl/compact_array.hi2A:e)B56d,S:

 LIn file included from       #_../src/s2/base/logging.h| vI:        ^aN21
lT:
2EIn file included from R)/usr/local/clang/include/absl/log/check.hN
:A      37L| :
  ^In file included from _In file included from 
s2/s2lax_polyline_shape.ccI/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/log/internal/check_impl.hF:18:_21:
51f:
In file included from :aIn file included from ../src/s2/s2lax_polyline_shape.h3l/usr/local/clang/include/absl/log/internal/check_op.h::s:32 e41:
note: (:
In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'iIn file included from ../src/s2/s2polyline.h
f/usr/local/clang/include/absl/log/internal/strip.h:_:   34s2651:
a:
 | In file included from t/usr/local/clang/include/absl/log/internal/log_message.h ../src/s2/s2builder.h i::As32136Bf::
Si52In file included from Le:../src/s2/mutable_s2shape_index.h_d :L,warning: 30O type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
G.
In file included from _./usr/local/clang/include/absl/container/btree_map.hI  N.:)321T67  | _E:
i_R/usr/local/clang/include/absl/container/internal/btree_container.hnVN:lAA546i_L:nA_3eRC: GH LSEwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_CgK
_M_
eO        sP| 546        ^s(a | 
 C gheeA&cB SkLL__oINNgTEEMR,N eA!sL=_sX,(a igvean:l:1soe,rpt _eovrara_lta1os_sritg<en<x,(t w,ci hvnaasrle_2tr*t,  _avobarsl_l2_a_ntsueslxitl)ga
bn      l_| ei  ^ m
vp)l/usr/local/clang/include/absl/log/internal/check_op.h ,:{ 75
&:      &61| ,:                                                   ^  
cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n/usr/local/clang/include/absl/base/nullability.h
s:t257    :75&23 | ,:    tnote: rAuexpanded from macro 'absl_nullable'eB
S,L  _
257L       | O| #Gd_  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~eIf
NiTn  EeR547 N | aA bL s_ l C_H nEu Cl KIn file included from l (s2/s2max_distance_targets.cca ::b :28l a:
e bIn file included from   s../src/s2/s2furthest_edge_query.h_ l:N :33u ::
l iIn file included from l m../src/s2/s2closest_edge_query_base.hatp:brl32lui:
eecIn file included from 
)i/usr/local/clang/include/absl/container/btree_set.h      ;t:| 
_66                      ^      c:

| a/usr/local/clang/include/absl/container/internal/btree_container.h                  ~~~~~s:
t592<:/usr/local/clang/include/absl/container/internal/btree_container.hc3:o:509n :swarning: 47tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]: 
 cnote: hexpanded from macro 'ABSL_INTERNAL_X'  a
592r | *     509Aa | B bS sL _ lI N_ T nE Ro N nAALnB_SuXL(l_iIlnN>sTe(ErR tN_ AoL r__A aT s\TsR
iIg      BnU| ,                                                            ^T Ei
_nCsAeP/usr/local/clang/include/absl/base/nullability.hrTt:U_R241oErD:__a22BsYs:(itg hninote: _shexpanded from macro 'absl_nonnull')i)In file included from 
n,t s2/s2memory_tracker.cc  _ i m:241 p18 |  l :
#,d  &In file included from e & ../src/s2/s2memory_tracker.hf,  :i & 29n& ,:
e   In file included from  t r../src/s2/util/gtl/compact_array.ha u :be ,56s 
 :
l       In file included from _|    ^../src/s2/base/logging.hn 
\:
o21n/usr/local/clang/include/absl/container/internal/btree_container.h      :
n:| In file included from u509                                              ^~~~/usr/local/clang/include/absl/log/check.hl:
:l5237 ::
_ In file included from note: /usr/local/clang/include/absl/container/internal/btree_container.hN/usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'ABSL_INTERNAL_X':o:n
54621n::
  u3In file included from 509l:/usr/local/clang/include/absl/log/internal/check_op.h | l : 
warning: 41passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]       :

 | In file included from                      ^/usr/local/clang/include/absl/container/internal/btree_container.h /usr/local/clang/include/absl/log/internal/strip.h
: :511 26: :
52 :   note: Aexpanded from macro 'ABSL_INTERNAL_X'B
SL_  I511N | T E R N A L _ A T T RAIBBSULT_EI_NCTAEPRTNUARLE_DA_TBTYR(ItBhUiTsE)_)C,A P T U R E D _ B Y ( t h i s ) ) )              \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
 \
         31|  |                                                    ^#
de/usr/local/clang/include/absl/container/internal/common.hf:i31n:e9 :A Bnote: Smacro 'ABSL_INTERNAL_IF_true' defined hereL
_IN   T31E | R#NdAeLf_iInFe_ tArBuSeL(_iIfN_TsEa/usr/local/clang/include/absl/log/internal/log_message.hRt:NiA340sLf:_i46Ie:Fd _,warning: t type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r.
u.e.()i   f340i_f | s _a stfaitrsifisiefenided,d  
v.o      .i| .        ^d)
  iAfb_sslaFtoirsmfaiteFdl
u      s| In file included from h        ^s2/s2max_distance_targets.cc(
:S28t:
rIn file included from i../src/s2/s2furthest_edge_query.hn:g33i:
fIn file included from In file included from ys2/s2lax_polyline_shape.cc../src/s2/s2closest_edge_query_base.hS::i1832n:
k:
In file included from *In file included from ../src/s2/s2lax_polyline_shape.h /usr/local/clang/include/absl/container/btree_set.h:a:32b66:
s:
In file included from l/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2polyline.h_::n59234o::
n3In file included from n:../src/s2/s2builder.hu :lwarning: 36l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 
In file included from s../src/s2/mutable_s2shape_index.hi:n30  k:
592,In file included from  | 
/usr/local/clang/include/absl/container/btree_map.h       : | 67A                                             ^:
B
/usr/local/clang/include/absl/container/internal/btree_container.hS:L546_/usr/local/clang/include/absl/base/nullability.h:I:3N241:T: E22warning: R'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:N
A Lnote: _expanded from macro 'absl_nonnull'  X
546( | i   n 241sA | eB#rStdLe__oIfrN_iTnaEesR sNiaAbgsLnl__,Xn (oiinnnsnseeurlrttl__ oor_r__Naoasnsnssiuiglgnln_
,h       iin| n                     ^ts_
eirmtp_lo,r _&a&s,s i&g&n,_ itmrpule,, 
&      &| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
con  s593t |   & ,   t r u e , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     547  |   t r u e ,   c o n s t _ i t e r a ttorru(eh)i;n
t      )|                    ~~~~~A
BSL/usr/local/clang/include/absl/container/internal/btree_container.h_:I511N:T47E:R Nnote: Aexpanded from macro 'ABSL_INTERNAL_X'L
_CO  M511M | A ) ; 
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
  /usr/local/clang/include/absl/container/internal/btree_container.h :A509B:S47L:_ Inote: Nexpanded from macro 'ABSL_INTERNAL_X'T
ERNA  L509_ | A T T R I B U T E _ CAABPSTLU_RIENDT_EBRYN(AtLh_iAsT)T)R)I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,\ 
        |                                                ^~~~ 
                   \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))          /usr/local/clang/include/absl/container/internal/btree_container.h : 550 : 24 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      550  | \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
  f   a31l | s#ed)e;f
ine       | A                       ^B
SL/usr/local/clang/include/absl/container/internal/btree_container.h_:I496N:T9E:R Nnote: Amacro 'ABSL_INTERNAL_X' defined hereL
_IF  _496t | r#udee(fiifn_es aAtBiSsLf_iIeNdT,E R.N.A.L)_ Xi(fF_usnact,i sCfailelde
e      ,|          ^K
Qual, MQual,In file included from  s2/s2max_distance_targets.ccK:V28a:
lIn file included from u../src/s2/s2furthest_edge_query.he:,33 :
MIn file included from V../src/s2/s2closest_edge_query_base.ha:l32u:
eIn file included from ,/usr/local/clang/include/absl/container/btree_set.h :.66.:
./usr/local/clang/include/absl/container/internal/btree_container.h): 592 : 3 :  \warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|         ^
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMM/usr/local/clang/include/absl/container/internal/btree_container.hA:)549;:
3      :|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47  :549  | note:  expanded from macro 'ABSL_INTERNAL_X' 
ABS  L511_ | I N T E R N A L _ X (AiBnSsLe_rItN_ToErR_NaAsLs_AiTgTnR,I BiUnTsEe_rCIn file included from tA_s2/s2memory_tracker.ccPoTr:U_18Ra:
EsDIn file included from s_../src/s2/s2memory_tracker.hiBgY:n(29_ti:
hmIn file included from ips../src/s2/util/gtl/compact_array.hl),): )&56& :
, In file included from   ../src/s2/base/logging.h& :& 21,  :
 fIn file included from  a /usr/local/clang/include/absl/log/check.hl s: e 37, 
:
       In file included from  |  /usr/local/clang/include/absl/log/internal/check_impl.h  ^ :
 21 :
/usr/local/clang/include/absl/container/internal/btree_container.h In file included from : /usr/local/clang/include/absl/log/internal/check_op.h509 :: 4152 :
:\In file included from  
/usr/local/clang/include/absl/log/internal/strip.hnote:       expanded from macro 'ABSL_INTERNAL_X':| 
26                                              ^~~~:

  /usr/local/clang/include/absl/log/internal/log_message.h509: | 398 : 11 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     A398B | S L _ I NvToEiRdN*A La_bAsTlT_RnIuBlUlTaEb_lCeA PcToUnRsEtD&_ BvY)(;t
h      i| s          ^)
), /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b\s
l      _| /usr/local/clang/include/absl/container/internal/btree_container.hn                                                   ^:u
618l:/usr/local/clang/include/absl/container/internal/common.hl64:a:32b :lwarning: 9epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]: 
 _note: N  macro 'ABSL_INTERNAL_IF_false' defined hereu618
l | l    a32 b | Al#BedSeL
f_iI      nN| e                      ^T E
ARBNSALL__IXN(TtErRyN_AeLm_pIlFa_cfea,l ster(yi_In file included from fes2/s2memory_tracker.cc_m:spa18lta:
icsIn file included from ef../src/s2/s2memory_tracker.h_ii:em29dp:
,lIn file included from  ,../src/s2/util/gtl/compact_array.h. .:c.56o)n:
 sIn file included from _t../src/s2/base/logging.h_ :V&21A,:
_ ARIn file included from fGa/usr/local/clang/include/absl/log/check.hSl:_s37_e:

)In file included from       ;/usr/local/clang/include/absl/log/internal/check_impl.h| 
:        ^      21
| :
                                                               ^In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h:41/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 596In file included from /usr/local/clang/include/absl/log/internal/strip.h:s2/s2lax_polyline_shape.cc:9:26:18:
 :
/usr/local/clang/include/absl/log/internal/log_message.hnote: In file included from macro 'ABSL_INTERNAL_X' defined here:../src/s2/s2lax_polyline_shape.h
400::32  17:
596:In file included from  |  ../src/s2/s2polyline.h#warning: :dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]34e
:
fIn file included from i../src/s2/s2builder.hn  :e40036  | :
 AIn file included from  B../src/s2/mutable_s2shape_index.h S :Lc30_oI:
NnIn file included from Ts/usr/local/clang/include/absl/container/btree_map.htE: R67Nv:
Ao/usr/local/clang/include/absl/container/internal/btree_container.hLi:d_549:*X3 (:aF uwarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
c,   C549a | l l eAeB,S LK_QIuNaTlE,R NKAVLa_lXu(ei,n s.e.r.t)_ o r _ a s s i g n ,   i n s e r t _ o r _ a\s
s      i| g        ^n
_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #defi/usr/local/clang/include/absl/container/internal/btree_container.hn:e618 :A3B:S Lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]I
NTE  R618N | A L _AIBFS_Lf_aIlNsTeE(RiNfA_Ls_aXt(itsrfyi_eedm,p l.a.c.e),  _t_rVyA__eAmRpGlSa_c_e
_      i| m        ^p
l, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           AIn file included from Bs2/s2lax_polyline_shape.ccS:L18_:
IIn file included from N../src/s2/s2lax_polyline_shape.hT:E32R:
NIn file included from A../src/s2/s2polyline.hL:_34A:
TIn file included from T../src/s2/s2builder.hR:I36B:
UIn file included from T../src/s2/mutable_s2shape_index.hE:_30C:
AIn file included from P/usr/local/clang/include/absl/container/btree_map.hT:U67R:
E/usr/local/clang/include/absl/container/internal/btree_container.hD:_551B:Y79(:t hwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
)),    551  |      A B S L _ I N T E R N A L _ X ( i n s e r\t
_      o| r                                                   ^_
as/usr/local/clang/include/absl/container/internal/common.hs:i32g:n9,:  inote: nmacro 'ABSL_INTERNAL_IF_false' defined heres
ert   _32o | r#_daesfsiingen _AiBmSpLl_,I N&T&E,R N&A&L,_ IfFa_lfsael,s et(riufe_)s;a
t      i| s                                                                              ^f
ie/usr/local/clang/include/absl/container/internal/btree_container.hd:,496 :.9.:. )note:  macro 'ABSL_INTERNAL_X' defined here_
_VA  _496A | R#GdSe_f_i
n      e|          ^A
BSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \In file included from 
s2/s2max_distance_targets.cc      :| 28        ^:

In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_/usr/local/clang/include/absl/container/internal/btree_container.hI:N551T:E3R:N Awarning: Lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
X(Fu  n551c | ,   CAaBlSlLe_eI,N TKEQRuNaAlL,_ XK(Vianlsueer,t _.o.r._)a s s i g n ,   i n s e r t _ o r _ a s s i g\n
_      i| m        ^p
l, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  s509l | _ n u l l a b l e   cAoBnSsLt_&I NvT)E;R
N      A| L                ^_
ATTR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Cnote: Aexpanded from macro 'absl_nullable'P
TUR  E/usr/local/clang/include/absl/container/internal/btree_container.h257D:_ | 619B#:Yd3(e:tf hiwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ie
s )a  b)619,s |   l  _ A nB uS lL _l Ia Nb T lE Re N  A _L _N Xu (l tl r ayb l_ ee 
m\p      
l|       a                      ^| c                                                   ^
e
, /usr/local/clang/include/absl/container/internal/common.ht:r32y:_9e:m pnote: lmacro 'ABSL_INTERNAL_IF_false' defined herea
ce_   i32m | p#ld,e fcionnes tA B&S,L _tIrNuTeE)R;N
A      L| _  ^I
F_/usr/local/clang/include/absl/container/internal/btree_container.hf:a611l:s52e:( inote: fexpanded from macro 'ABSL_INTERNAL_X'_
sat  i611s | f i e d ,   . . . )  A_B_SVLA__IANRTGESR_N_A
L      _| A        ^T
TRIBUTE_CAIn file included from Ps2/s2lax_polyline_shape.ccT:U18R:
EIn file included from D../src/s2/s2lax_polyline_shape.h_:B32Y:
(In file included from t../src/s2/s2polyline.hh:i34s:
)In file included from )../src/s2/s2builder.h,: 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 551 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
      \551
 |        |                                                     ^A
BS/usr/local/clang/include/absl/container/internal/common.hL:_31I:N9T:E Rnote: Nmacro 'ABSL_INTERNAL_IF_true' defined hereA
L_X   (31i | n#sdeerfti_noer _AaBsSsLi_gInN,T EiRnNsAeLr_tI_Fo_rt_rauses(iigfn__siamtpils,f i&e&d,,  &.&.,. )f ailfs_es,a ttirsufei)e;d

            | |   ^        ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |   In file included from  s2/s2max_distance_targets.cc : 28 :
 In file included from  ../src/s2/s2furthest_edge_query.h : 33A:
BIn file included from S../src/s2/s2closest_edge_query_base.hL:_32I:
NIn file included from T/usr/local/clang/include/absl/container/btree_set.hE:R66N:
A/usr/local/clang/include/absl/container/internal/btree_container.hL:_619A:T3T:R Iwarning: B'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]UIn file included from 
Ts2/s2memory_tracker.ccE:_18  C:
619AIn file included from  | P ../src/s2/s2memory_tracker.hT U:AR29BES:
DLIn file included from __B../src/s2/util/gtl/compact_array.hIYN:(T56tEh:
RiNIn file included from sA)../src/s2/base/logging.hL)_:)X21 ( :
t rIn file included from  y /usr/local/clang/include/absl/log/check.h_ :e 37m p:
 l In file included from a c/usr/local/clang/include/absl/log/internal/check_impl.h e :,  21 t :
r yIn file included from  _/usr/local/clang/include/absl/log/internal/check_op.h e: m41 p:
 l In file included from a c/usr/local/clang/include/absl/log/internal/strip.h\e:
_26      i:
| m                                                   ^pl, /usr/local/clang/include/absl/log/internal/log_message.h
c:o/usr/local/clang/include/absl/container/internal/common.hn425:s:31t31: :9& :, warning:  note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tmacro 'ABSL_INTERNAL_IF_true' defined herer

ue)   ;  31
425 |       # | | d   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e 
fLio/usr/local/clang/include/absl/container/internal/btree_container.hng:Me611 e:As47Bs:Sa Lgnote: _expanded from macro 'ABSL_INTERNAL_X'eI
NFTa  Et611Ra | lN( Ac L o_ nI sF t_  t cr uh aeAr(Bi*Sf L__asbIaNstTilEsR_fnNiAoeLdn_,An uTl.Tl.R .If)BiUl eTi,Ef_ _iCsnAaPttT iUslRifEinDee_dB)
Y       (A| t        ^Bh
SiLs_)A)T,T R I B In file included from U s2/s2lax_polyline_shape.cc T:E 18 _:
 CIn file included from  O../src/s2/s2lax_polyline_shape.h L: D32 ;:
 
In file included from        ../src/s2/s2polyline.h  | :                               ^34 
:
 In file included from  ../src/s2/s2builder.h /usr/local/clang/include/absl/base/nullability.h: :36 241:
 :In file included from  22../src/s2/mutable_s2shape_index.h\::
 30      note: :
expanded from macro 'absl_nonnull'| In file included from                                               ^~~~
/usr/local/clang/include/absl/container/btree_map.h
:  67241:
 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d551e:f3i:n ewarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]a
bsl_n  o551n | n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(insert_or_assign, insert_or_assiIn file included from gs2/s2memory_tracker.ccn:_18i:
mIn file included from p/usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2memory_tracker.hl:,:620 29:&:
59&In file included from :,../src/s2/util/gtl/compact_array.h  :warning: &56passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]&:

,In file included from  ../src/s2/base/logging.h  f:620a21 | l :
s In file included from eA/usr/local/clang/include/absl/log/check.h,B :StL37r_u:
IeNIn file included from )T;/usr/local/clang/include/absl/log/internal/check_impl.hE
R:      N21| A  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
L
In file included from _/usr/local/clang/include/absl/log/internal/check_op.hX/usr/local/clang/include/absl/container/internal/btree_container.h(::t41511r:
:yIn file included from 47_/usr/local/clang/include/absl/log/internal/strip.h:e: m26note: pexpanded from macro 'ABSL_INTERNAL_X':
l
/usr/local/clang/include/absl/log/internal/log_message.ha:c426  e:511,31 |   t: r  y _warning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m p
 l a   c e426A_B | iS mL p_lLI,oN gT&EM&Re,N sAfsLaa_lAgseTeTF)R;aI
Bt      Ua| T                                                          ^lE
(_c/usr/local/clang/include/absl/container/internal/btree_container.hCo:An596Ps:tT 9cU:Rh Eanote: Drmacro 'ABSL_INTERNAL_X' defined here_*
B Ya  (b596ts | h#li_dsen)f)oin)nn eu   lA Bl  S Lf i_ lI Ne T E, R  N iA Ln _t X  ( lF iu nn ec ,,  \
C
a            l| |                               ^l                                              ^~~~e

e,/usr/local/clang/include/absl/base/nullability.h :K241Q:u22a:l ,note:  expanded from macro 'absl_nonnull'K
Va  l241u | e#,d e.f.i.n)e   a b s l _ n o n n u l l   _ N o n n u l l\

            | |                      ^        ^

In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552/usr/local/clang/include/absl/container/internal/btree_container.h:79:: 620:warning: 3:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |     620A | B S LA_BISNLT_EIRNNTAELR_NXA(Li_nXs(etrrty__oerm_palsascieg,n ,t riyns_eermtp_loarc_ea_sismipgln,_ i&m&p,l ,f a&l&s,e )&;&
,       | t  ^r
ue,/usr/local/clang/include/absl/container/internal/btree_container.h :f611a:l52s:e )note: ;expanded from macro 'ABSL_INTERNAL_X'

      |                                                                               ^
  611 | /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
 AB  S496L | _#IdNeTfEiRnNeA LA_BASTLT_RIINBTUETREN_ACLA_PXT(UFRuEnDc_,B YC(atlhliese),) ,K Q u a l ,   M Q u a l ,   K V a l u e ,   M V a l u\e
,       | .                                                   ^.
.) /usr/local/clang/include/absl/container/internal/common.h : 32 : 9\:
       | note:         ^macro 'ABSL_INTERNAL_IF_false' defined here

   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2memory_tracker.cc552::183:
:In file included from  In file included from ../src/s2/s2memory_tracker.hwarning: s2/s2max_distance_targets.cc:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:29
28:
:
In file included from In file included from ../src/s2/util/gtl/compact_array.h  ../src/s2/s2furthest_edge_query.h:552:56 | 33 :
:
 In file included from In file included from A../src/s2/base/logging.h../src/s2/s2closest_edge_query_base.hB::S2132L:
:
_In file included from In file included from I/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/btree_set.hN::T3766E:
:
RIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hN/usr/local/clang/include/absl/log/internal/check_impl.h:A:621L21:_:
58X/usr/local/clang/include/absl/log/internal/check_op.h:(: i180nwarning: :spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e42
r:t _  owarning: 621rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | _ 
a sAsB  iS180gLn | _AI,NB TSiEnLRsNe_ArALTtT__XRo(Irt_BraUys_TseEimg_pnlP_aUicmRepE,l_ ,tF Ur&yN&_,Ce Tm&pI&OlNa,c  ect_oriunmeps,l t,f  a&clhs&ae,r) ;*t
r       ua| eb  ^)s;

l      /usr/local/clang/include/absl/container/internal/btree_container.h_| :n                                                         ^509o
:n52null Ma/usr/local/clang/include/absl/container/internal/btree_container.h:k: e596note: C:expanded from macro 'ABSL_INTERNAL_X'h9
e:c   knote: 509macro 'ABSL_INTERNAL_X' defined hereF | 
 a i  l 596S  |  t# dr e if ni gnAe(B
 SA      LB| _SI                                         ^LN_
TIENR/usr/local/clang/include/absl/base/nullability.hTNE:AR241LN_:AAL22T_T:XR( IFnote: Bexpanded from macro 'absl_nonnull'uUn
TcE,  _ CC241AaP | l#TdlUeeReEf,D i_KBnQYue(a tlha,i sbK)Vs)a,ll u_ e n,  o n. .n u. )l l       _ N  o   n   n u l l  
           |                         ^   
  \ 
        |                                                     ^\

      | /usr/local/clang/include/absl/container/internal/common.h        ^In file included from :
s2/s2memory_tracker.cc31::189:
:In file included from  ../src/s2/s2memory_tracker.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here29
:
In file included from ../src/s2/util/gtl/compact_array.h:   5631:
 | In file included from #../src/s2/base/logging.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37A:
BIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hL:_21I:
N/usr/local/clang/include/absl/log/internal/check_op.hT:E181R:N25A:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
_tr  u181e | ( i f _ scaotnisstf iaebds,l :.:.S.) if_satisfied
      |         ^
tatus* ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l621_:n3o:n nIn file included from warning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2lax_polyline_shape.ccl
:l18 :
  sIn file included from 621t../src/s2/s2lax_polyline_shape.h | a: t32 u:
AsIn file included from B,../src/s2/s2polyline.hS :Lc34_o:
nIIn file included from sNt../src/s2/s2builder.hT :Ec36Rh:
NaIn file included from Ar../src/s2/mutable_s2shape_index.hL*:_30X :
(aIn file included from tb/usr/local/clang/include/absl/container/btree_map.hrs:ly67__:
e/usr/local/clang/include/absl/container/internal/btree_container.hnm:po552ln:an3cu:el ,lwarning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]tp
rrye_fe  im552xp | )l ;a 
cA      eB_| S                        ^iLm
_pIl/usr/local/clang/include/absl/base/nullability.hN,T :E&241R&:N,A22 Lt:_r Xunote: (expanded from macro 'absl_nonnull'ei
)n;s
  e      241r| t  ^ | _
o#r/usr/local/clang/include/absl/container/internal/btree_container.h_d:ae611sf:si52in:ge n note: ,aexpanded from macro 'ABSL_INTERNAL_X' b
isnls  e_611rn | t o_ on r n_ au s ls li  _g NnAo_BniSmLnp_luI,Nl lT&
E&R      ,N | A&L                     ^&_
,A TtTrRuIeB,U TfEa_In file included from lCs2/s2memory_tracker.ccsAe:P)T18;U:

RIn file included from       E| D  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
BY(/usr/local/clang/include/absl/container/internal/btree_container.ht:h509i:s47):) ,note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |                      A B S L _ I N T E\R
N      A| L                                                   ^_
ATT/usr/local/clang/include/absl/container/internal/common.hR:I31B:U9T:E _note: Cmacro 'ABSL_INTERNAL_IF_true' defined hereA
PTU   R31E | D#_dBeYf(itnhei sA)B)S,L _ I N T E R N A L _ I F _ t r u e ( i f _ s a t\i
s      f| i                                              ^~~~e
d, ...) /usr/local/clang/include/absl/container/internal/btree_container.hi:f552_:s3a:t iwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f
ied
      /usr/local/clang/include/absl/container/internal/btree_container.h| :        ^511
:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSLIn file included from _s2/s2max_distance_targets.ccI:N28T:
EIn file included from R../src/s2/s2furthest_edge_query.hN:A33L:
_In file included from A../src/s2/s2closest_edge_query_base.hT:T32R../src/s2/s2memory_tracker.h:
I:In file included from B29/usr/local/clang/include/absl/container/btree_set.hU:
:TIn file included from 66E../src/s2/util/gtl/compact_array.h:
_:/usr/local/clang/include/absl/container/internal/btree_container.hCAPTURED_BY(thi56s):
)In file included from )../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h : 181 : 58 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
\
      |                                                    ^
  181 |  /usr/local/clang/include/absl/container/internal/common.h : 32 :c9o:n stnote:  macro 'ABSL_INTERNAL_IF_false' defined herea
bsl:   :32S | t#adteufsi*n ea bAsBlS_Ln_oInNnTuElRlN AsLt_aItFu_sf,a lcsoen(sitf _cshaatri*s faibesdl,_ n.o.n.n)u l_l_ VpAr_eAfRiGxS)_;_

            | |                                                          ^        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      :|                      ^621
:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace,In file included from  s2/s2memory_tracker.cct:r18y:
_In file included from e../src/s2/s2memory_tracker.hm:p29l:
aIn file included from c../src/s2/util/gtl/compact_array.he:_56i:
mIn file included from p../src/s2/base/logging.hl:,21 :
&In file included from &/usr/local/clang/include/absl/log/check.h,: 37t:
rIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.he:)21;:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 189  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
28: warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
611:47:   note: 189expanded from macro 'ABSL_INTERNAL_X' | In file included from 
is2/s2lax_polyline_shape.ccn:l  18i611:
n | In file included from  e../src/s2/s2lax_polyline_shape.h  : c32 o:
 nIn file included from  s../src/s2/s2polyline.h t:  34 a:
 bIn file included from As../src/s2/s2builder.hBl:S:36L:_:
ISIn file included from Nt../src/s2/mutable_s2shape_index.hTa:Et30uR:
sNIn file included from *A/usr/local/clang/include/absl/container/btree_map.hL :_a67Ab:
Ts/usr/local/clang/include/absl/container/internal/btree_container.hTl:_R553In:Bo78Un:Tn Euwarning: l_passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]Cl
 AAPs  ST553Ut | aR Et DAu_sBB(SYLc(_toIhNniTssE)tR)N, Aa Lb _ sX l(: i :n Ss te ar tt u_ os &r _  as s) s  i {g 
n       , |   i                           ^ n 
s e/usr/local/clang/include/absl/base/nullability.h\r
:t      241_| o:                                              ^~~~r22
_:a snote: sexpanded from macro 'absl_nonnull'i
gn  _241i | m#pdle,f i&n&e,  a&b&s,l _tnrounen,u ltlr u_eN)o;n
n      u| l                                                                             ^l

      | /usr/local/clang/include/absl/container/internal/btree_container.h                     ^:
496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KIn file included from Vs2/s2memory_tracker.cca:l18u:
eIn file included from ,../src/s2/s2memory_tracker.h :M29V:
aIn file included from l../src/s2/util/gtl/compact_array.hu:e56,:
 In file included from .../src/s2/base/logging.h.:.21):
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
\In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21        ^:

/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::622241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

  241   | 622# | d e/usr/local/clang/include/absl/container/internal/btree_container.h f:Ai553Bn:Se3L :_a Iwarning: Nbpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]Ts
ElR_N  nA553oL | n_n uX (lAtBlrS yL___NeIomNpnTlEnaRucNelA,Ll _
tX      r(y| i_                     ^nes
meprlta_coer__haisnsti_ginm,p li,n sceornts_to r&_,a sfsailgsne_,i
m      p| l  ^,
 &/usr/local/clang/include/absl/container/internal/btree_container.h&:,611 :&52&:,  note: In file included from texpanded from macro 'ABSL_INTERNAL_X'rs2/s2memory_tracker.cc
u:e18  ,:
611 In file included from  | t ../src/s2/s2memory_tracker.hr :u 29e :
) ;In file included from  
../src/s2/util/gtl/compact_array.h       : | 56   ^ :

AIn file included from B../src/s2/base/logging.h/usr/local/clang/include/absl/container/internal/btree_container.hS::L21509_:
:IIn file included from 52N/usr/local/clang/include/absl/log/check.h:T: E37note: Rexpanded from macro 'ABSL_INTERNAL_X':
N
In file included from A/usr/local/clang/include/absl/log/internal/check_impl.hL  :_50921A | T:
 T/usr/local/clang/include/absl/log/internal/check_op.h R :I B202 U: T46 E: _  C warning: AAtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]PBT
SULR_EI  DN_202TBE | Y R( NetAhxLpi_slA)T)iTc,Ri It B  UC hT Ee _ cC kA PO T pU RM Ee D s_ sBa Y g( etB h ui si l) d) ,e  r\( 
c o       n|                                                     ^s t
  c h/usr/local/clang/include/absl/container/internal/common.h a: r32 *:  9 a: b  snote:  macro 'ABSL_INTERNAL_IF_false' defined herel 
 _     n32o  |  n# nd eu\f
li      nl| e                                                   ^  
AeB/usr/local/clang/include/absl/container/internal/common.hxS:Lp31r_:It9Ne:Tx Etnote: Rmacro 'ABSL_INTERNAL_IF_true' defined here)N
A;L   
_31I       | F| #_                                             ^dfe
aflis/usr/local/clang/include/absl/base/nullability.hne:e(241 i:AfB22_S:sLa _tnote: Iexpanded from macro 'absl_nonnull'iNs
TfE  iRe241Nd | A,#L d_e.If.F.i_)nte  r_ua_ebV(Asi_flA__RsnGaoSt_ni_ns
fu      il| el        ^d 
,_ N.o.n.n)u lilf
_      s| a                     ^t
isfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfIn file included from ieds2/s2memory_tracker.cc,: 18.:
.In file included from .../src/s2/s2memory_tracker.h): 29i:
In file included from f../src/s2/util/gtl/compact_array.h_:s56a:
In file included from t../src/s2/base/logging.hi:s21f:
iIn file included from e/usr/local/clang/include/absl/log/check.hd:
37      :
| In file included from         ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   coIn file included from ns2/s2lax_polyline_shape.ccs:t18 :
cIn file included from h../src/s2/s2lax_polyline_shape.ha:r32*:
 In file included from a../src/s2/s2polyline.hbIn file included from :s34ls2/s2max_distance_targets.cc:
_:In file included from n28../src/s2/s2builder.ho:
:nIn file included from 36n../src/s2/s2furthest_edge_query.hu:
:lIn file included from 33l../src/s2/mutable_s2shape_index.h:
 :In file included from N30../src/s2/s2closest_edge_query_base.he:
:wIn file included from 32S/usr/local/clang/include/absl/container/btree_map.h:
t:In file included from r67/usr/local/clang/include/absl/container/btree_set.hi:
:n/usr/local/clang/include/absl/container/internal/btree_container.h66g::
(553)/usr/local/clang/include/absl/container/internal/btree_container.h:;:3
624:      : | 3warning:               ^:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/base/nullability.h
:  241553: | 22   :624   | A note: Bexpanded from macro 'absl_nonnull' SA
LB_SI  LN_241TI | EN#RTNdEAeRfLN_AiXL(n_eiXn (atbsrseyrl_te__monprol_anacsnes,ui gltnlr, y __ieNnomsnpelnruatlc_elo_r
h_i      an| sts                     ^_i
igmnp_li,m pclo,n s&t& ,& ,& &t,r uter,u
e      ,|    ^t
rue/usr/local/clang/include/absl/container/internal/btree_container.h):;611
:      52| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
note: expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47  :611  | note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |       A B S L _ I N TAEBRSNLA_LI_NATTETRRNIABLU_TAET_TCRAIPBTUUTREE_DC_ABPYT(UtRhEiDs_)B)Y,( t h i s ) ) )                                      \ 
        |                                                     ^ 
\
      | /usr/local/clang/include/absl/container/internal/common.h                                              ^~~~:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfIn file included from is2/s2memory_tracker.cce:d18,:
 In file included from .../src/s2/s2memory_tracker.h.:.29):
 In file included from i../src/s2/util/gtl/compact_array.hf:_56s:
aIn file included from t../src/s2/base/logging.hi:s21f:
iIn file included from e/usr/local/clang/include/absl/log/check.hd:
37      :
| In file included from         ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakIn file included from es2/s2max_distance_targets.ccC:h28e:
cIn file included from k../src/s2/s2furthest_edge_query.hO:p33V:
aIn file included from l../src/s2/s2closest_edge_query_base.hu:e32S:
tIn file included from r/usr/local/clang/include/absl/container/btree_set.hi:n66g:
(/usr/local/clang/include/absl/container/internal/btree_container.hs:t624d::3::o swarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
eam&   o624s | ,   cAoBnSsLt_ IvNoTiEdR*N AaLb_sXl(_tnruylIn file included from _les2/s2measures.ccam:bp23ll:
eaIn file included from  c../src/s2/s2edge_crossings.hpe:),47 ;:

tIn file included from r      ../src/s2/s2predicates.hy| :_                                                          ^55e
:
mIn file included from p/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/flags/flag.hl::a25740c::
e23/usr/local/clang/include/absl/flags/commandlineflag.h_::h 163inote: :expanded from macro 'absl_nullable'n56
t:_   iwarning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m/usr/local/clang/include/absl/container/internal/btree_container.h | 
#pd:le555  ,f:163 i3 | cn: oe  warning: bn passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]osa
otbl   s &555,lP_ |   ant rruAuBsleS,elFL
_arb      Iol| N  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~me(T
E aR_  bNN625sAu | lLl :_l :Xa s(b til rne is
 ne       gr|  _t                      ^ v_
 io re _w  a vsa s liu gecn,o, n ssittn_dsi:e:trestrt_raoitron_rag(sh*si iangtbns)_ lhA_inBnSotLn__inImNuplTlEl,R  NcAeoLnr_srCtoOr )M&M;,
A
)            ;| |                                                        ^
  ^
      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h
::241509:/usr/local/clang/include/absl/container/internal/btree_container.h:22:52:611: : note: 47expanded from macro 'absl_nonnull'note: :expanded from macro 'ABSL_INTERNAL_X'
 
note:   expanded from macro 'ABSL_INTERNAL_X'241  
 | 509# | d   e611 f |   i  n  e     a  b s l  _A In file included from nB Ss2/s2memory_tracker.ccoAnL:Bn_18SuI:
LlNIn file included from _lT../src/s2/s2memory_tracker.hI E:N_R29TNN:
EoAIn file included from RnL../src/s2/util/gtl/compact_array.hNn_:AuA56LlT:
_lTIn file included from A
R../src/s2/base/logging.hT      I:T| B21R                     ^U:
I
TIn file included from BEU/usr/local/clang/include/absl/log/check.h_T:CE37A_:
PCIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hP:T21U:
R/usr/local/clang/include/absl/log/internal/check_op.hE:D276_:B13Y:( twarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
s))  ,276  |  c o n s t   v o i d *   a b s l _ n u l l a b l eIn file included from \ s2/s2measures.cc
o:p      23e| :
r                                              ^~~~In file included from a
../src/s2/s2edge_crossings.ht:o47r:
<In file included from <../src/s2/s2predicates.h(:s55t:
dIn file included from :/usr/local/clang/include/absl/flags/flag.h::o40s:
t/usr/local/clang/include/absl/flags/commandlineflag.hr:e193a:m27&:, 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]            ^

/usr/local/clang/include/absl/base/nullability.h  :193257 | : 23 :v inote: rexpanded from macro 'absl_nullable't
ua  l257  | v#odiedf iRneea da(bvsoli_dn*u lalbasbll_en o_nNnuulllla bdlset
)       | c                      ^o
nst = 0;
      | In file included from                           ^s2/s2memory_tracker.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2memory_tracker.h241::2922:
:In file included from  ../src/s2/util/gtl/compact_array.h:note: 56expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/logging.h:  21241:
 | In file included from #/usr/local/clang/include/absl/log/check.hd:e37f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l277_:n50o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l _  N277o | n n u l l 
        |                       ^ 
                            const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l626a:b3l:e 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                      ^

  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
TUREDIn file included from _s2/s2memory_tracker.ccB:Y18(:
tIn file included from h../src/s2/s2memory_tracker.hi:s29):
)In file included from ,../src/s2/util/gtl/compact_array.h : 56 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 298 : 22 :\ 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                                   ^
  298 | /usr/local/clang/include/absl/container/internal/common.hc:o32n:s9t:  unote: nmacro 'ABSL_INTERNAL_IF_false' defined heres
ign   32 | #define ABSL_IeNdT EcRhNaArL*_ IaFb_sfla_lnsoen(niufl_ls aotpiesrfaiteodr,< <.(.s.t)d :_:_bVaAs_iAcR_GoSs_t_r
e      a| m        ^<
char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2lax_polyline_shape.cc::2218::
 In file included from note: ../src/s2/s2lax_polyline_shape.hexpanded from macro 'absl_nonnull':
32:
In file included from   ../src/s2/s2polyline.h241: | 34#:
dIn file included from e../src/s2/s2builder.hf:i36n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l555l: 3_:N owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull  
555       | |                       ^ 
ABSL_INTERNAL_X(inIn file included from ss2/s2memory_tracker.cce:r18t:
_In file included from o../src/s2/s2memory_tracker.hr:_29a:
sIn file included from s../src/s2/util/gtl/compact_array.hi:g56n:
,In file included from  ../src/s2/base/logging.hi:n21s:
eIn file included from r/usr/local/clang/include/absl/log/check.ht:_37o:
rIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.ha:s21s:
i/usr/local/clang/include/absl/log/internal/check_op.hg:n299_:h67i:n twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
mpl,   299c | o n s t   & , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _ I N TcEoRnNsAtL _uAnTsTiRgInBeUdT Ec_hCaArP*T UaRbEsDl__BnYo(ntnhuilsl)));)
        |                                                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i\n
e       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n32o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_false' defined here 
_No   n32n | u#ldle
f      i| n                     ^e
 ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, In file included from .s2/s2memory_tracker.cc.:.18):
 In file included from _../src/s2/s2memory_tracker.h_:V29A:
_In file included from A../src/s2/util/gtl/compact_array.hR:G56S:
_In file included from _../src/s2/base/logging.h
:      21| :
        ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   fIn file included from rs2/s2lax_polyline_shape.cci:e18n:
dIn file included from  ../src/s2/s2lax_polyline_shape.hv:o32i:
dIn file included from  ../src/s2/s2polyline.hA:b34s:
lIn file included from F../src/s2/s2builder.ho:r36m:
aIn file included from t../src/s2/mutable_s2shape_index.hF:l30u:
sIn file included from h/usr/local/clang/include/absl/container/btree_map.h(:S67t:
r/usr/local/clang/include/absl/container/internal/btree_container.hi:n558g:i3f:y Swarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
k* a  b558s | l _ nAoBnSnLIn file included from u_s2/s2measures.cclI:Nl23T :
sEIn file included from iR../src/s2/s2edge_crossings.hnN:kA47,L:
_
In file included from X      ../src/s2/s2predicates.h(| :i                                             ^55n
:
sIn file included from e/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/flags/flag.hr::t24142_:o:
22rIn file included from :_/usr/local/clang/include/absl/flags/internal/flag.h anote: :sexpanded from macro 'absl_nonnull'30s
i:
g  /usr/local/clang/include/absl/base/call_once.hn241:, | 52 #:id24ne:sf eirwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n_
eo ra   b_52sa | lss_tsIn file included from ndois2/s2max_distance_targets.ccg:n::nna28_ut:
hllomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::onIn file included from ../src/s2/s2furthest_edge_query.h:33i:
In file included from ../src/s2/s2closest_edge_query_base.hn:t32_:
iIn file included from m/usr/local/clang/include/absl/container/btree_set.hp:l66,:
 c/usr/local/clang/include/absl/container/internal/btree_container.ho:n628s:t3 :& ,warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|   ^
  628/usr/local/clang/include/absl/container/internal/btree_container.h | : 509 :A52B:S Lnote: _expanded from macro 'ABSL_INTERNAL_X'I
NTER  N509A | L _ X ( t r y _ e m pAlBaScLe_,I NtTrEyR_NeAmLp_lAaTcTeR_IhBiUnTtE__iCmApPlT,U R&E&D,_ BtYr(uteh,i
s      )| )  ^,
   /usr/local/clang/include/absl/container/internal/btree_container.h : 611 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      611  |               \ 
        | A                                                   ^B
SL_/usr/local/clang/include/absl/container/internal/common.hI:N32T:E9R:N Anote: Lmacro 'ABSL_INTERNAL_IF_false' defined here_
ATT   R32I | B#UdTeEf_iCnAeP TAUBRSELD__IBNYT(EtRhNiAsL)_)I,F _ f a l s e ( i f _ s a t i s f i e d ,   . . . )  \_
_      V| A                                                   ^_
ARG/usr/local/clang/include/absl/container/internal/common.hS:_31_:
9      :|          ^note: 
macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define AIn file included from Bs2/s2lax_polyline_shape.ccS:L18_:
IIn file included from N../src/s2/s2lax_polyline_shape.hT:E32R:
NIn file included from A../src/s2/s2polyline.hL:_34I:
FIn file included from _../src/s2/s2builder.ht:r36u:
eIn file included from (../src/s2/mutable_s2shape_index.hi:f30_:
sIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:i67s:
f/usr/local/clang/include/absl/container/internal/btree_container.hi:e558d:,3 :. .warning: .passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
 if  _558s | a t iAsBfSiLe_dI
N      T| E        ^R
NAL_X(insert_or_assign, In file included from is2/s2max_distance_targets.ccn:s28e:
rIn file included from t../src/s2/s2furthest_edge_query.h_:o33r:
_In file included from a../src/s2/s2closest_edge_query_base.hs:s32i:
gIn file included from n/usr/local/clang/include/absl/container/btree_set.h_:h66i:
n/usr/local/clang/include/absl/container/internal/btree_container.ht:_628i:m3p:l ,warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]c
onst   &628, | 
        | A  ^B
SL/usr/local/clang/include/absl/container/internal/btree_container.h_:I511N:T52E:R Nnote: Aexpanded from macro 'ABSL_INTERNAL_X'L
_X(  t511r | y _ e m p l a c e ,  AtcBreyS__Lfe_lmIapgNl*aT caEbRes_NlhA_inLon_tn_AnTuilTlm RpfIllBa,gU, T &EC&a_,lCl AtaPrbTluUeeR,&E
&D       f_n| B,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Y

(      t|   h                                       ^629i
 | s ) /usr/local/clang/include/absl/base/nullability.h) :) 241  :  22  :     note:   expanded from macro 'absl_nonnull'  
        241    |   #  dceo fn is nt e_  i a bt s el r_a nt\oo
nr      n(| uh                                                   ^li
nlt /usr/local/clang/include/absl/container/internal/common.h_):N o31AnB:nS9uL:l_ lI
note: N      macro 'ABSL_INTERNAL_IF_true' defined hereT| 
E                     ^R
N   A31L | _#CdOeMfMiAn)e; 
A      B| S                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L
_IN/usr/local/clang/include/absl/container/internal/btree_container.hT:E611R:N47A:L _note: Iexpanded from macro 'ABSL_INTERNAL_X'F
_tr  u611e | ( i f _ s a t i s f iAeBdS,L _.I.N.T)E RiNfA_Ls_aAtTiTsRfIiBeUdT
E      _| C        ^A
PTURED_BY(this))In file included from ,s2/s2lax_polyline_shape.cc : 18 :
 In file included from  ../src/s2/s2lax_polyline_shape.h : 32 :
 In file included from  ../src/s2/s2polyline.h : 34 :
 In file included from  ../src/s2/s2builder.h : 36 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h :\67
:
      | /usr/local/clang/include/absl/container/internal/btree_container.h                                              ^~~~:
558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNALIn file included from _s2/s2measures.ccC:O23M:
MIn file included from A../src/s2/s2edge_crossings.h):;47
:
      In file included from | ../src/s2/s2predicates.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
55:
In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/container/internal/btree_container.h::42511:
:In file included from 47/usr/local/clang/include/absl/flags/internal/flag.h:: 30note: :
expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/base/call_once.h:153:  41511: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      153  |     A B SCLa_lIlNOTnEcRe NIAmLp_l_A(TsNTtoRdnIn:BuU:lTalE
t_o      Cm| Ai                     ^Pc
T<UuRiEnDt_3B2Y_(tt>h*i sa)b)s)l _ n o n n u l l   c o n t r o l , 
        |                                          ^ 
  \/usr/local/clang/include/absl/base/nullability.h
:      241| :                                              ^~~~22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
/usr/local/clang/include/absl/container/internal/btree_container.h  :511638 | : 63 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
    A  B638S | L _ I N T E RcNoAnLs_tA TkTeRyI_BaUrTgE<_KC>A P&TkU RAEBDS_LB_YI(NtThEiRsN)A)L)_ A T T R I B U T E _ C A P T U R E D _ B Y ( t h\i
s      )| )                                                   ^

      | /usr/local/clang/include/absl/container/internal/common.h                                                              ^~~~:
32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, 509x:,47 :c onnote: sexpanded from macro 'ABSL_INTERNAL_X't
 char* ab  s509l | _ n o n n u l l ) 
       A| B                        ^S
L_INTERN/usr/local/clang/include/absl/base/nullability.hA:L_A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_C  A241P | T#UdReEfDi_nBeY (atbhsils_)n)o,nn u l l   _ N o n n u l l 
        |                       ^ 
       \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           In file included from As2/s2memory_tracker.ccB:S18L:
_In file included from I../src/s2/s2memory_tracker.hN:T29E:
RIn file included from N../src/s2/util/gtl/compact_array.hA:L56_:
AIn file included from T../src/s2/base/logging.hT:R21I:
BIn file included from U/usr/local/clang/include/absl/log/check.hT:E37_:
CIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hP:T21U:
R/usr/local/clang/include/absl/log/internal/check_op.hE:D453_:B1Y:( twarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
s)))   453  |  A B S L _ L O G _ I N T E R N A L _ D E F I\N
E      _| M                                                   ^A
KE_C/usr/local/clang/include/absl/container/internal/common.hH:E31C:K9_:O Pnote: _macro 'ABSL_INTERNAL_IF_true' defined hereS
T   R31I | N#Gd_eEfXiTnEeR NA(BuSiLn_tI6N4T_EtR)N;A
L      _| I^F
_t/usr/local/clang/include/absl/log/internal/check_op.hr:u449e:(31i:f _note: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
tis  f449i | e d ,e x.t.e.r)n  itfe_mspaltaitsef iceodn
s      t|          ^c
har* absl_nonnull MakeCheckOpSIn file included from ts2/s2lax_polyline_shape.ccr:i18n:
gIn file included from (../src/s2/s2lax_polyline_shape.h : 32 :
\In file included from 
../src/s2/s2polyline.h      :| 34                              ^:

In file included from ../src/s2/s2builder.h:/usr/local/clang/include/absl/base/nullability.h36::
241In file included from :../src/s2/mutable_s2shape_index.h22::30 :
In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nonnull':
67:
  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 564#:d3e:f iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
 absl  _564n | o n nAuBlSlL __INNoTnEnRuNlAlL
_      X| (                     ^i
nsert_or_assiIn file included from gs2/s2memory_tracker.ccn:,18 :
iIn file included from n../src/s2/s2memory_tracker.hs:e29r:
tIn file included from _../src/s2/util/gtl/compact_array.ho:r56_:
aIn file included from s../src/s2/base/logging.hs:i21g:
nIn file included from _/usr/local/clang/include/absl/log/check.hh:i37n:
tIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hi:m21p:
l/usr/local/clang/include/absl/log/internal/check_op.h,: 453c:o1n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
,
/usr/local/clang/include/absl/log/internal/check_op.h      :| 450  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
25:   note: 565expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
     450  |              x ,   x ,   c ocnosnts tc h&a,r *t raubes,l _tnrounen,u
l      l| )                  ~~~~~~~~~~~~~~~~~~~~

      |                         ^  
566 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f icnoen satb_silt_enroantnourl(lh i_nNto)n nAuBlSlL
_      I| N                     ^T
ERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2memory_tracker.cc:  18511:
 | In file included from  ../src/s2/s2memory_tracker.h : 29 :
 In file included from  ../src/s2/util/gtl/compact_array.h : 56 :
 In file included from A../src/s2/base/logging.hB:S21L:
_In file included from I/usr/local/clang/include/absl/log/check.hN:T37E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hA:L21_:
A/usr/local/clang/include/absl/log/internal/check_op.hT:T454R:I1B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
CAPT  U454R | EADB_SBLY_(LtOhGi_sI)N)T)E R N A L _ D E F I N E _ M A K E _ C H E C K _ O\P
_      S| T                                              ^~~~R
ING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | AB/usr/local/clang/include/absl/container/internal/btree_container.hS:L568_:L3O:G _warning: Ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]N
TERN  A568L | _ D EAFBISNLE__IMNATKEER_NCAHLE_CXK(_iOnPs_eSrTtR_IoNrG__aEsXsTiEgRnN,( dionusbelret)_;o
r      _| a^s
si/usr/local/clang/include/absl/log/internal/check_op.hg:n449_:h31i:n tnote: _expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
mpl  ,449  | c o nesxtt e&r,n  &t&e,m
p      l| a  ^t
e /usr/local/clang/include/absl/container/internal/btree_container.hc:o509n:s52t:  cnote: hexpanded from macro 'ABSL_INTERNAL_X'a
r*   a509b | s l _ n o n n u l l  AMBaSkLe_CIhNeTcEkRONpASLt_rAiTnTgR(I B U T\E
_      C| A                              ^P
TU/usr/local/clang/include/absl/base/nullability.hR:E241D:_22B:Y (note: texpanded from macro 'absl_nonnull'h
is  )241) | ,# d e f i n e   a b s l _ n o n n u l l   _ N o n\n
u      l| l                                                   ^

      |                      ^/usr/local/clang/include/absl/container/internal/common.h
:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
s2/s2memory_tracker.cc:18:
   In file included from 32../src/s2/s2memory_tracker.h | :#29d:
eIn file included from f../src/s2/util/gtl/compact_array.hi:n56e:
 In file included from A../src/s2/base/logging.hB:S21L:
_In file included from I/usr/local/clang/include/absl/log/check.hN:T37E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hA:L21_:
I/usr/local/clang/include/absl/log/internal/check_op.hF:_455f:a1l:s ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
f/usr/local/clang/include/absl/log/internal/check_op.h_:s450a:t25i:s fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
d,   450. | . . )   _ _ VxA,_ AxR,G Sc_o_n
s      t|          ^c
har* absl_nIn file included from os2/s2lax_polyline_shape.ccn:n18u:
lIn file included from l../src/s2/s2lax_polyline_shape.h):
32      :
| In file included from                         ^../src/s2/s2polyline.h
:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2builder.h::2236::
 In file included from ../src/s2/mutable_s2shape_index.hnote: :expanded from macro 'absl_nonnull'30
:
In file included from   /usr/local/clang/include/absl/container/btree_map.h241: | 67#:
d/usr/local/clang/include/absl/container/internal/btree_container.he:f568i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_no  n568n | u l lA B_SNLo_nInNuTlElR
N      A| L                     ^_
X(insert_or_assign, inserIn file included from ts2/s2memory_tracker.cc_:o18r:
_In file included from a../src/s2/s2memory_tracker.hs:s29i:
gIn file included from n../src/s2/util/gtl/compact_array.h_:h56i:
nIn file included from t../src/s2/base/logging.h_:i21m:
pIn file included from l/usr/local/clang/include/absl/log/check.h,: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
&/usr/local/clang/include/absl/log/internal/check_op.h,: 456&:&1,:
       | warning:   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:511  :45652 | :A Bnote: Sexpanded from macro 'ABSL_INTERNAL_X'L_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |     
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL  x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_t
rue(if_satisf  i449e | d ,  e.x.t.e)r ni ft_esmaptliastfei ecdo
n      s| t        ^ 
char* absl_nonnull MakeCheckOpString(   \
      | In file included from                               ^s2/s2lax_polyline_shape.cc
:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/base/nullability.h::34241:
:In file included from 22../src/s2/s2builder.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/mutable_s2shape_index.h
:30:
  In file included from 241/usr/local/clang/include/absl/container/btree_map.h | :#67d:
e/usr/local/clang/include/absl/container/internal/btree_container.hf:i574n:e3 :a bwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
_nonnul  l574  | _ N oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(insert_or_assiIn file included from gs2/s2memory_tracker.ccn:,18 :
iIn file included from n../src/s2/s2memory_tracker.hs:e29r:
tIn file included from _../src/s2/util/gtl/compact_array.ho:r56_:
aIn file included from s../src/s2/base/logging.hs:i21g:
nIn file included from _/usr/local/clang/include/absl/log/check.hh:i37n:
tIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hi:m21p:
l/usr/local/clang/include/absl/log/internal/check_op.h,: 464c:o26n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
, &  &464, | 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
con  s575t |   u n s i g n e d   c h a r *   a b stlr_uneo,n nturlule),; 
c      o| n                         ^s
t_i/usr/local/clang/include/absl/base/nullability.ht:e241r:a22t:o rnote: (expanded from macro 'absl_nonnull'h
in  t241) |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oCnOnMuMlAl) ;_
N      o| n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ull
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 511                     ^:
47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |   In file included from  s2/s2memory_tracker.cc : 18 :
 In file included from  ../src/s2/s2memory_tracker.h : 29A:
BIn file included from S../src/s2/util/gtl/compact_array.hL:_56I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:A37T:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:B21U:
T/usr/local/clang/include/absl/log/internal/check_op.hE:_464C:A26P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_/usr/local/clang/include/absl/base/nullability.hB:Y241(:t22h:i snote: )expanded from macro 'absl_nonnull')
)    241  |  # d e f i n e   a b s l _ n o n n u l l  \_
N      o| n                                              ^~~~n
ull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const voi/usr/local/clang/include/absl/container/internal/btree_container.hd:*577 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
onnu  l577l | ) ; 
A      B| S^L
_I/usr/local/clang/include/absl/log/internal/check_op.hN:T449E:R31N:A Lnote: _expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'X
(in  s449e | r t _eoxrt_earsns itgenm,p liantsee rcto_nosrt_ acshsairg*n _ahbisnlt__niomnpnlu,l l& &M,a kceoCnhsetc k&O,p
S      t| r  ^i
ng(/usr/local/clang/include/absl/container/internal/btree_container.h : 509 :\52
:       | note:                               ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:241  :50922 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nAnTuTlRlI B_UNToEn_nCuAlPlT
U      R| E                     ^D
_BY(tIn file included from hs2/s2memory_tracker.cci:s18):
)In file included from ,../src/s2/s2memory_tracker.h : 29 :
 In file included from  ../src/s2/util/gtl/compact_array.h : 56 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2pointutil.cc -o s2/s2pointutil.o
 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h\:
465      :| 66                                                   ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/common.h
:32:9:   465 | note: Amacro 'ABSL_INTERNAL_IF_false' defined hereB
SL_   L32O | G#_dIeNfTiEnReN AALB_SDLE_FIINNTEE_RMNAAKLE__ICFH_EfCaKl_sOeP(_iSfT_RsIaNtGi_sEfXiTeEdR,N (.c.o.n)s t_ _vVoAi_dA*R GaSb_s_l
_      n| o        ^n
null);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2lax_polyline_shape.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2lax_polyline_shape.h:  32241:
 | In file included from #../src/s2/s2polyline.hd:e34f:
iIn file included from n../src/s2/s2builder.he: 36a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_30n:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.h:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl: 577_:N3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l
      |                        ^577
 |   ABSL_In file included from Is2/s2memory_tracker.ccN:T18E:
RIn file included from N../src/s2/s2memory_tracker.hA:L29_:
XIn file included from (../src/s2/util/gtl/compact_array.hi:n56s:
eIn file included from r../src/s2/base/logging.ht:_21o:
rIn file included from _/usr/local/clang/include/absl/log/check.ha:s37s:
iIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.hn:,21 :
i/usr/local/clang/include/absl/log/internal/check_op.hn:s465e:r66t:_ owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:_ hnote: iexpanded from macro 'absl_nonnull'n
t_  i241m | p#ld,e f&i&n,e  caobnsslt_ n&o,n
n      u| l  ^l
 _/usr/local/clang/include/absl/container/internal/btree_container.hN:o511n:n52u:l lnote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                      ^
  511 |  In file included from  s2/s2memory_tracker.cc : 18 :
 In file included from  ../src/s2/s2memory_tracker.h : 29 :
AIn file included from B../src/s2/util/gtl/compact_array.hS:L56_:
IIn file included from N../src/s2/base/logging.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37A:
TIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hR:I21B:
U/usr/local/clang/include/absl/log/internal/check_op.hT:E465_:C1A:P Twarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ED_  B465Y | (AtBhSiLs_)L)O)G _ I N T E R N A L _ D E F I N E _ M A K E _ C H\E
C      K| _                                                   ^O
P_/usr/local/clang/include/absl/container/internal/common.hS:T32R:I9N:G _note: Emacro 'ABSL_INTERNAL_IF_false' defined hereX
TE   R32N | (#cdoenfsitn ev oAiBdS*L _aIbNsTlE_RnNoAnLn_uIlFl_)f;a
l      s| e^(
if/usr/local/clang/include/absl/log/internal/check_op.h_:s450a:t25i:s fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
d,   450. | . . )   _ _ VxA,_ AxR,G Sc_o_n
s      t|          ^c
har* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(i21n:
sIn file included from e/usr/local/clang/include/absl/log/check.hr:t37_:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.h_:a21s:
si/usr/local/clang/include/absl/log/internal/check_op.hg:n502,: 1i:n swarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
t_or_ass  i502g | nA_BhSiLn_tL_OiGm_pIlN,T E&R&N,A Lc_oCnHsEtC K&_,O
P      _| I  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~M
PL(C  h582e |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |         ck_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2measures.cc:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
          true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |    In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
       ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSIn file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* abL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #definsl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
e ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, tIn file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
rue,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBIn file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:UTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:49:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:49:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:49:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      | In file included from                               ^s2/s2memory_tracker.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2memory_tracker.h::25729::
23In file included from :../src/s2/util/gtl/compact_array.h :note: 56expanded from macro 'absl_nullable':

In file included from ../src/s2/base/logging.h  :25721 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n511u:l13l:a bwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 _Nul  l511a | bcloen
s      t|                        ^c
har* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from ds2/s2point_compression.cce:f17i:
nIn file included from e../src/s2/s2point_compression.h :a49b:
s/usr/local/clang/include/absl/types/span.hl:_739n:u21l:l awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
e _N  u739l | lSapbalne<
T      >|                        ^M
akeSpanIn file included from (s2/s2memory_tracker.ccT:*18 :
aIn file included from b../src/s2/s2memory_tracker.hs:l29_:
nIn file included from u../src/s2/util/gtl/compact_array.hl:l56a:
bIn file included from l../src/s2/base/logging.he: 21b:
eIn file included from g/usr/local/clang/include/absl/log/check.hi:n37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
A/usr/local/clang/include/absl/log/internal/check_op.hT:T512R:I17B:U Twarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
LIF  E512T | I M E _ BcOoUnNsDt, 
c      h| a                    ^r
* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n unote: lexpanded from macro 'absl_nullable'l
ab  l257e |  #sd1e,f icnoen satb sclh_anru*l laabbslle_ n_uNlullalbalbel es
2      ,| 
                      ^      
|                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2point_compression.cc
:17:
  In file included from 257../src/s2/s2point_compression.h | :#49d:
e/usr/local/clang/include/absl/types/span.hf:i740n:e21 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_nu  l740l | a b l e   _ N u l l a b l e 
        |                        ^T
* absl_nullaIn file included from bs2/s2memory_tracker.ccl:e18 :
eIn file included from n../src/s2/s2memory_tracker.hd:)29 :
nIn file included from o../src/s2/util/gtl/compact_array.he:x56c:
eIn file included from p../src/s2/base/logging.ht: 21{:

In file included from       /usr/local/clang/include/absl/log/check.h| :                    ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21257:
:/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from 23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:49:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:49:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:49:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_In file included from vs2/s2min_distance_targets.cci:e18w:
 In file included from v../src/s2/s2min_distance_targets.ha:l29u:
eIn file included from ,../src/s2/s1angle.h :s28t:
dIn file included from :../src/s2/s2point.h::s24t:
rIn file included from i/usr/local/clang/include/absl/hash/hash.hn:g89*:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
_In file included from n/usr/local/clang/include/absl/base/internal/endian.ho:n26n:
ul/usr/local/clang/include/absl/base/internal/unaligned_access.hl: 39e:r45r:o rwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h   :39241 | :i22n:l inote: nexpanded from macro 'absl_nonnull'e
 u  i241n | t#1d6e_fti nUen aalbisgln_endoLnonaudl1l6 (_cNoonnsntu lvlo
i      d| *                     ^ 
absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   viIn file included from rs2/s2min_distance_targets.cct:u18a:
lIn file included from  ../src/s2/s2min_distance_targets.hv:o29i:
dIn file included from  ../src/s2/s1angle.hR:e28a:
dIn file included from (../src/s2/s2point.hv:o24i:
dIn file included from */usr/local/clang/include/absl/hash/hash.h :a89b:
sIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h_:n79o:
nIn file included from n/usr/local/clang/include/absl/base/internal/endian.hu:l26l:
 /usr/local/clang/include/absl/base/internal/unaligned_access.hd:s45t:)45 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t =    450 | ;i
n      l| i                          ^n
e /usr/local/clang/include/absl/base/nullability.hu:i241n:t223:2 _note: texpanded from macro 'absl_nonnull' 
Un  a241l | i#gdneefdiLnoea da3b2s(lc_onnosntn uvloli d_*N oanbnsull_ln
o      n| n                     ^u
ll p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from In file included from s2/s2min_distance_targets.cc../src/s2/mutable_s2shape_index.h::1833:
:
In file included from In file included from ../src/s2/s2min_distance_targets.h../src/s2/base/commandlineflags.h::2921:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/flags/flag.h::2842:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/flags/internal/flag.h::2430:
:
In file included from /usr/local/clang/include/absl/hash/hash.h:/usr/local/clang/include/absl/base/call_once.h89::
52In file included from :/usr/local/clang/include/absl/hash/internal/hash.h24::79 :
warning: /usr/local/clang/include/absl/base/internal/endian.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]258
:36: warning:    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]52
 | st  d258: | :iantloimniec <uuiinntt3322__tt >L*o aadb3s2l(_cnoonnsntu lvlo iCdo*n tarbosllW_onrodn(n
u      l| l                       ^ 
p) {
/usr/local/clang/include/absl/base/nullability.h      :| 241                                   ^:
22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::oIn file included from ns2/s2min_distance_targets.ccc:e18_:
fIn file included from l../src/s2/s2min_distance_targets.ha:g29*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n24n:
uIn file included from l/usr/local/clang/include/absl/hash/hash.hl: 89f:
lIn file included from a/usr/local/clang/include/absl/hash/internal/hash.hg:)79;:

/usr/local/clang/include/absl/base/internal/endian.h      :| 262                     ^:
27: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 262expanded from macro 'absl_nonnull' | 
in  l241i | n#ed evfoiinde  Satbosrle_3n2o(nvnouildl*  _aNbosnln_unloln
n      u| l                     ^l
 p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:In file included from 34s2/s2min_distance_targets.cc:
:In file included from 18../src/s2/s2builder.h:
:In file included from 36../src/s2/s2min_distance_targets.h:
:In file included from 29../src/s2/mutable_s2shape_index.h:
:In file included from 33../src/s2/s1angle.h:
:In file included from 28../src/s2/base/commandlineflags.h:
:In file included from 21../src/s2/s2point.h:
:In file included from 24/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42/usr/local/clang/include/absl/hash/hash.h:
:In file included from 89/usr/local/clang/include/absl/flags/internal/flag.h:
:In file included from 30/usr/local/clang/include/absl/hash/internal/hash.h:
:79/usr/local/clang/include/absl/base/call_once.h:
:96/usr/local/clang/include/absl/base/internal/endian.h::33266:: 36warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |    266  | firnileinnde  sutidn:t:6a4t_otm iLco<audi6n4t(3c2o_nts>t*  vaobisdl*_ naobnsnlu_lnlo nbnauslel_ ipn)t {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ernal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull CoIn file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ntrolWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2memory_tracker.cc:18:
In file included from ../src/s2/s2memory_tracker.h:29:
In file included from ../src/s2/util/gtl/compact_array.h:56:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2polygon.cc -o s2/s2polygon.o
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2lax_polyline_shape.cc:18:
In file included from ../src/s2/s2lax_polyline_shape.h:32:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2max_distance_targets.cc:28:
In file included from ../src/s2/s2furthest_edge_query.h:33:
In file included from ../src/s2/s2closest_edge_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* abslIn file included from _s2/s2point_compression.ccn:u17l:
lIn file included from a../src/s2/s2point_compression.hb:l50e:
 In file included from c../src/s2/util/coding/coder.ho:n36s:
tIn file included from  ../src/s2/base/casts.hm:u34_:
;In file included from 
/usr/local/clang/include/absl/log/log.h      :| 209         ^:

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/base/nullability.h::63257:
:In file included from 23/usr/local/clang/include/absl/log/internal/vlog_config.h:: 40:
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/string_view.h
:53:  54257: |  #warning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
fine    53a | bcsoln_sntuelxlparb lset r_iNnugl_lvaibelwe 
N      u| l                      ^l
SafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUIn file included from Ss2/s2point_compression.ccI:V17E:
_In file included from L../src/s2/s2point_compression.hO:C50K:
_In file included from F../src/s2/util/coding/coder.hU:N36C:
TIn file included from I../src/s2/base/casts.hO:N34(:
mIn file included from u/usr/local/clang/include/absl/log/log.h):
209      :
| In file included from       ^~~~/usr/local/clang/include/absl/log/internal/log_impl.h
:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndIn/usr/local/clang/include/absl/synchronization/mutex.hi:t1153i:a39l:i zwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
VLo g1153S | i t ee*x palbiscli_tn oRnenluelals avb)l;e
M      u| t                                    ^e
xLo/usr/local/clang/include/absl/base/nullability.hc:k241(:M22u:t enote: xexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bmsul)_
n      o| n                                      ^n
ull/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2metrics.cc   :6331 | :
 In file included from  ../src/s2/s2metrics.he:x34p:
lIn file included from i../src/s2/s2coords.hc:i108t:
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from e../src/s2/s2coder.hx:p23r:
 In file included from V/usr/local/clang/include/absl/status/status.hL:o67g:
SIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.ht:e29(:
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s94t:
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.hh:a31r:
*/usr/local/clang/include/absl/synchronization/mutex.h :a1158b:s53l:_ nwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
null  1158f | ) 
        |                                            ^ 
 Mu/usr/local/clang/include/absl/base/nullability.ht:e241x:&22 :m unote:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBoUnTnEu_lClA P_TNUoRnEnDu_lBlY
(      t| h                     ^i
s),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutIn file included from es2/s2point_compression.ccx:L17o:
cIn file included from k../src/s2/s2point_compression.h(:M50u:
tIn file included from e../src/s2/util/coding/coder.hx:*36 :
aIn file included from b../src/s2/base/casts.hs:l34_:
nIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h :m20u:
,In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.hc:o63n:
s/usr/local/clang/include/absl/log/internal/vlog_config.ht: 96C:o60n:d iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
on&    c96o | n d )f
r      i| e                                      ^n
d /usr/local/clang/include/absl/base/nullability.hi:n241t: 22l:o gnote: _expanded from macro 'absl_nonnull'i
nt  e241r | n#adle:f:iRneeg iasbtselr_AnnodnInnuiltli a_lNioznen(uVlLlo
g      S| i                     ^t
e* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2metrics.ccl: 31_:
NIn file included from o../src/s2/s2metrics.hn:n34u:
lIn file included from l../src/s2/s2coords.h
:      108| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s2/s2metrics.cc
:31:
In file included from ../src/s2/s2metrics.h:  34212:
 | In file included from  ../src/s2/s2coords.h :u108s:
iIn file included from n../src/s2/s2point.hg: 27p:
oIn file included from i../src/s2/s2coder.hn:t23e:
rIn file included from  /usr/local/clang/include/absl/status/status.h=: 67T:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:i31l:
i/usr/local/clang/include/absl/synchronization/mutex.ht:y1221_:u54n:k nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
n;
       | 1221                     ^ | 
boo/usr/local/clang/include/absl/base/nullability.hl: 289C:o34n:d inote: texpanded from macro 'absl_nullability_unknown'i
on:  :289C | a#sdteAfnidnCea lalbFsuln_cntuilolna(bciolnistty _Cuonnkdniotwino n_*N ualbls_lu_nnsopnencuilfli ecd)
       {| 
                                 ^      
|                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2padded_cell.cc  :24118 | :
#In file included from d../src/s2/s2padded_cell.he:f22i:
nIn file included from e../src/s2/r2rect.h :a24b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41
:
      In file included from | /usr/local/clang/include/absl/log/internal/strip.h                     ^:
26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullabiliIn file included from ts2/s2metrics.ccy:_31u:
nIn file included from k../src/s2/s2metrics.hn:o34w:
nIn file included from ;../src/s2/s2coords.h
:      108| :
                                 ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289../src/s2/s2coder.h::3423::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nullability_unknown'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :28929 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_1230n:u12l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
lit y1230_ | u n k n obwono l_ N(u*lalb_suln_snpoencniuflile df
u      n| c                                 ^)
(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2metrics.cc::2131:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2metrics.h::4134:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h../src/s2/s2coords.h::26108:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2point.h::4727:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h../src/s2/s2coder.h::2723:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/proto.h/usr/local/clang/include/absl/status/status.h::3467:
:
In file included from /usr/local/clang/include/absl/types/span.h/usr/local/clang/include/absl/status/internal/status_internal.h::73329::
31In file included from :/usr/local/clang/include/absl/strings/cord.h :In file included from 94warning: s2/s2point_compression.cc:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:In file included from 
17/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2point_compression.h:
:  /usr/local/clang/include/absl/synchronization/mutex.h50733::
 | 1309In file included from c:../src/s2/util/coding/coder.ho35:n:36s :
tIn file included from warning: e../src/s2/base/casts.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x:
p34r:
 In file included from  S/usr/local/clang/include/absl/log/log.h1309p: | a209vn:
o<In file included from iTd/usr/local/clang/include/absl/log/internal/log_impl.h >: R20eM:
gaiIn file included from ks/usr/local/clang/include/absl/log/absl_vlog_is_on.het:eSr63pC:
oan/usr/local/clang/include/absl/log/internal/vlog_config.hdn:V(133aT:r*37T :raa bcwarning: setype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lr
(_vnou  ild133l  | a(ib*nlatbes l R_pnetogrnin suAtlBelSr LAf_nn)A(d
TI      Tn| RiI                                  ^tB
iUaT/usr/local/clang/include/absl/base/nullability.hlEi:_z241Le:I(22FV:EL Tonote: IgMexpanded from macro 'absl_nonnull'SE
i_tB  eO241*U |  #NdaDbe,fs
iln      _e|  n                              ^oa
nbnsul/usr/local/clang/include/absl/base/nullability.hl_:ln257 o:vn23)n:;u 
l      note: l| expanded from macro 'absl_nullable'                                     ^_

No  n257/usr/local/clang/include/absl/base/nullability.hn | :u#241ld:le22
f:      i | nnote:                      ^eexpanded from macro 'absl_nonnull'
 
ab  sIn file included from l241s2/s2metrics.cc_ | :n#31ud:
leIn file included from lf../src/s2/s2metrics.hai:bn34le:
e In file included from  a../src/s2/s2coords.h_b:Ns108ul:
l_In file included from ln../src/s2/s2point.hao:bn27ln:
euIn file included from 
l../src/s2/s2coder.h      l:|  23                      ^_:

NIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonIn file included from ns2/s2padded_cell.ccu:l18l:
 In file included from m../src/s2/s2padded_cell.hs:g22,:
 In file included from c../src/s2/r2rect.ho:n24s:
tIn file included from  ../src/s2/base/logging.hv:o21i:
dIn file included from */usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21oIn file included from :
ns2/s2point_compression.ccIn file included from n:/usr/local/clang/include/absl/log/internal/check_op.hu17:l:
41lIn file included from  :
../src/s2/s2point_compression.hcIn file included from v:/usr/local/clang/include/absl/log/internal/strip.h)50)::
;26In file included from 
:
../src/s2/util/coding/coder.h      In file included from :| /usr/local/clang/include/absl/log/internal/log_message.h36                ^::

47In file included from :
../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.hIn file included from ::/usr/local/clang/include/absl/log/internal/structured_proto.h34241::
:27In file included from 22:
/usr/local/clang/include/absl/log/log.h:In file included from : /usr/local/clang/include/absl/log/internal/proto.h209:note: :
34expanded from macro 'absl_nonnull'In file included from :

/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/types/span.h::  20739241:
: | In file included from #21/usr/local/clang/include/absl/log/absl_vlog_is_on.h:: 63:
dwarning: /usr/local/clang/include/absl/log/internal/vlog_config.hetype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:f
157i:n11e:    739a | bwarning: Sstype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]pl
a_nn<o  Tn157>n |  uVMlLalok ge_SSNioptnaenn*u(l lTa
*b       s| al                     ^b_
snlu_lnlualbllIn file included from aes2/s2metrics.ccb :lS31ee:
 tIn file included from bVe../src/s2/s2metrics.hMg:oi34dn:
u In file included from lAe../src/s2/s2coords.hBL:Si108Ls_:
tAIn file included from HT../src/s2/s2point.heT:aR27dI:
FBIn file included from oU../src/s2/s2coder.hrT:TE23e_:
sLIn file included from tI/usr/local/clang/include/absl/status/status.hOF:nE67lT:
yIIn file included from (M/usr/local/clang/include/absl/status/internal/status_internal.h
E:      _29| B:
          ^OIn file included from 
U/usr/local/clang/include/absl/strings/cord.hN:/usr/local/clang/include/absl/base/nullability.hD94:,:
257
In file included from :      /usr/local/clang/include/absl/strings/internal/cordz_info.h23| ::                    ^31 
:
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nullable':/usr/local/clang/include/absl/base/nullability.h
1310::257  47:257:23 |  :# warning: dnote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eexpanded from macro 'absl_nullable'
f
in   e1310257  |  | a #bd se lf _icnonnuesl tla acbbhslaler_ *n_ uNalublslall_banlboenl neu_
lNl       u| ml                      ^slg
a,b lceo
n      sIn file included from | ts2/s2point_compression.cc                      ^ :
v17o:
iIn file included from d../src/s2/s2point_compression.h*: 50a:
bIn file included from s../src/s2/util/coding/coder.hl:_36In file included from n:
os2/s2padded_cell.ccIn file included from n:../src/s2/base/casts.hn18:u:
l34In file included from l:
 ../src/s2/s2padded_cell.hIn file included from c:/usr/local/clang/include/absl/log/log.hv22:):
209)In file included from :
;../src/s2/r2rect.h
In file included from :      /usr/local/clang/include/absl/log/internal/log_impl.h24| ::
                                              ^20In file included from 
:
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h21:::
24163In file included from ::
/usr/local/clang/include/absl/log/check.h22/usr/local/clang/include/absl/log/internal/vlog_config.h:::37 158:
:note: In file included from 15expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h:
: 21  :
warning: 241In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | /usr/local/clang/include/absl/log/internal/check_op.h
#:d41  e:
f158In file included from i | /usr/local/clang/include/absl/log/internal/strip.hn :e 26  :
a In file included from bV/usr/local/clang/include/absl/log/internal/log_message.hLs:lo_47ngo:
nSnIn file included from iu/usr/local/clang/include/absl/log/internal/structured_proto.htl:el27 *:
 _In file included from Na/usr/local/clang/include/absl/log/internal/proto.hobn:sn34lu:
_l/usr/local/clang/include/absl/types/span.hnl:u
740l      :l| 21a                     ^:b
 lwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
v);  
740       | |                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | T#*d eafbisnle_ naublslla_bnluel leanbdl)e  n_oNeuxlcleapbtl e{

            | |                       ^                    ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2min_distance_targets.cc979: | 18 :
 In file included from  ../src/s2/s2min_distance_targets.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36C:
oIn file included from r../src/s2/base/casts.hd:R34e:
pIn file included from */usr/local/clang/include/absl/log/log.h :a209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h_:n20o:
nIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.hu:l63l:
 r/usr/local/clang/include/absl/log/internal/vlog_config.he:p49,: 37c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 Cor   d49z | Uipndtat eScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* Raebgsils_tneornAnnudlIln ictoiradlzi_zien(fVoL)o g{S
i      t| e                                                  ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241v | )#;d
e      f| i                                    ^n
e absl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: In file included from warning: s2/s2metrics.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
In file included from ../src/s2/s2metrics.h:34   :
63In file included from  | ../src/s2/s2coords.h : 108e:
xIn file included from p../src/s2/s2point.hl:i27c:
iIn file included from t../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht:e67x:
pIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h :V29L:
o/usr/local/clang/include/absl/strings/cord.hg:S1049i:t56e:( cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st c h1049a | r *  satbastli_cn obnonoull lG eft)F
l      a| t                                          ^A
ux(/usr/local/clang/include/absl/base/nullability.ha:b241s:l22::: cnote: oexpanded from macro 'absl_nonnull'r
d_  i241n | t#edrenfailn:e: CaobrsdlR_enpo*n naublsll __nNoonnnnuullll 
r      e| p                     ^,

      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: In file included from warning: s2/s2min_distance_targets.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from  ../src/s2/s2min_distance_targets.h1050: | 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209a:
bIn file included from s/usr/local/clang/include/absl/log/internal/log_impl.hl::20::
sIn file included from t/usr/local/clang/include/absl/log/absl_vlog_is_on.hr:i63n:
g/usr/local/clang/include/absl/log/internal/vlog_config.h_:v96i:e60w:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n   o96n | n u lflr ifernadg mienntt )l;o
g      _| i                                            ^n
te/usr/local/clang/include/absl/base/nullability.hr:n241a:l22::: Rnote: eexpanded from macro 'absl_nonnull'g
is  t241e | r#AdnedfIinniet iaablsilz_en(oVnLnouglSli t_eN*o nanbuslll_
n      o| n                     ^n
ull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2metrics.cc#:d31e:
fIn file included from i../src/s2/s2metrics.hn:e34 :
aIn file included from b../src/s2/s2coords.hs:l108_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                     ^:

/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_inIn file included from ts2/s2min_distance_targets.cce:r18n:
aIn file included from l../src/s2/s2min_distance_targets.h:::29C:
oIn file included from r../src/s2/s1angle.hd:R28e:
pIn file included from *../src/s2/s2point.h :a25b:
sIn file included from l../src/s2/util/coding/coder.h_:n36o:
nIn file included from n../src/s2/base/casts.hu:l34l:
 In file included from T/usr/local/clang/include/absl/log/log.ha:k209e:
RIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.hp:(20):
 In file included from c/usr/local/clang/include/absl/log/absl_vlog_is_on.ho:n63s:
t&/usr/local/clang/include/absl/log/internal/vlog_config.h;:
119      :| 15                                ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241  :11922 | :   note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu lclo n_sNto nfniullel_
;      
|                            ^| 
              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2metrics.cce: 31a:
bIn file included from s../src/s2/s2metrics.hl:_34n:
oIn file included from n../src/s2/s2coords.hn:u108l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.hs2/s2metrics.cc::2031:
:
In file included from In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h../src/s2/s2metrics.h::6334:
:
In file included from /usr/local/clang/include/absl/log/internal/vlog_config.h../src/s2/s2coords.h::133108::
37In file included from :../src/s2/s2point.h :27warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:  67133:
 | In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:t29 :
R/usr/local/clang/include/absl/strings/cord.he:g1268i:s51t:e rwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
dIni t1268i | ailnilzien(eV LvoogiSdi tCeo*r da:b:sIln_lnionnenRuelpl: :vE)m;p
l      a| c                                    ^e
Tree/usr/local/clang/include/absl/base/nullability.h(:C241o:r22d:R enote: pexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la brselp_,n
o      n| n                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from In file included from s2/s2metrics.cc../src/s2/util/coding/coder.h::3136:
:
In file included from In file included from ../src/s2/s2metrics.h../src/s2/base/casts.h::3434:
:
In file included from In file included from ../src/s2/s2coords.h/usr/local/clang/include/absl/log/log.h::108209:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/log_impl.h::2722:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/log_message.h::2347:
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/structured_proto.h::103827::
33In file included from :/usr/local/clang/include/absl/log/internal/proto.h :34warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/types/span.h:212:22 :1038  | warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
  st  a212t | u s _uisnitnegr npaoli:n:tSetra t=u sTR*e pa*b salb_snlu_lnloanbniullilt yr_eupn)k n{o
w      n| ;                                ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22:/usr/local/clang/include/absl/base/nullability.h :289note: :expanded from macro 'absl_nonnull'34
:   note: 241expanded from macro 'absl_nullability_unknown' | 
#de  f289i | n#ed eabsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2metrics.cc:31:
In file included from ../src/s2/s2metrics.h:34:
In file included from ../src/s2/s2coords.h:108:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
fine absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_ass365i warninggsn generated_.
impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |     In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
    257  |  # d e f i n e   a b stlr_uneu,l lAaBbSlLe_ I_NNTuElRlNaAbLl_eS
I      N| G                      ^L
E_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(inser/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2polyline_alignment.cc -o s2/s2polyline_alignment.o
t_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2/s2padded_cell.cc::20018::
3In file included from :../src/s2/s2padded_cell.h :22warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:  21200:
 | In file included from  /usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_op.hR:N41A:
LIn file included from _/usr/local/clang/include/absl/log/internal/strip.hX:(26i:
nIn file included from s/usr/local/clang/include/absl/log/internal/log_message.he:r53t:
_o/usr/local/clang/include/absl/types/source_location.hr:_113a:s19s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 inse  r113t | _ o r _ a s sciognns_ti mcphla,r *& &a,b sclo_nnsotn&n,u ltlr ufei,l
e      _| n  ^a
me/usr/local/clang/include/absl/container/internal/raw_hash_map.h :=133 :_52_:b unote: iexpanded from macro 'ABSL_INTERNAL_X'l
tin  _133F | I L E ( ) )   { 
        | A                  ^B
SL_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'A
TT  R241I | B#UdTeEf_iCnAeP TaUbRsElD__nBoYn(ntuhlils )_)N,o n n u l l 
        |                       ^ 
                \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define In file included from As2/s2padded_cell.ccB:S18L:
_In file included from I../src/s2/s2padded_cell.hN:T22E:
RIn file included from N../src/s2/r2rect.hA:L24_:
IIn file included from F../src/s2/base/logging.h_:t21r:
uIn file included from e/usr/local/clang/include/absl/log/check.h(:i37f:
_In file included from s/usr/local/clang/include/absl/log/internal/check_impl.ha:t21i:
sIn file included from f/usr/local/clang/include/absl/log/internal/check_op.hi:e41d:
,In file included from  /usr/local/clang/include/absl/log/internal/strip.h.:.26.:
)In file included from  /usr/local/clang/include/absl/log/internal/log_message.hi:f53_:
s/usr/local/clang/include/absl/types/source_location.ha:t133i:s25f:i ewarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |         ^
  133 |   constexpr consIn file included from ts2/s2max_distance_targets.cc :c32h:
aIn file included from r../src/s2/s2shape_index_region.h*: 25a:
bIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.hl:_45n:
o/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:n200u:l3l:  fwarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
e_nam  e200( | )   cAoBnSsLt_ InNoTeExRcNeApLt_ X{(
i      n| s                        ^e
rt/usr/local/clang/include/absl/base/nullability.h_:o241r:_22a:s snote: iexpanded from macro 'absl_nonnull'g
n,   241i | n#sdeerfti_noer _aabsssli_gnno_ninmuplll,  _&N&o,n ncuolnls
t      &| ,                     ^ 
true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     In file included from  s2/s2padded_cell.cc : 18 :
 In file included from  ../src/s2/s2padded_cell.h : 22 :
 In file included from  ../src/s2/r2rect.h : 24 :
fIn file included from a../src/s2/base/logging.hl:s21e:
,In file included from  /usr/local/clang/include/absl/log/check.h.:f37i:
rIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:,21 :
cIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:s41t:
_In file included from i/usr/local/clang/include/absl/log/internal/strip.ht:e26r:
aIn file included from t/usr/local/clang/include/absl/log/internal/log_message.ho:r53 :
A/usr/local/clang/include/absl/types/source_location.hB:S142L:_25I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL  _142C | O M McAo)n;s
t      e| x                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~p
r c/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n133s:t47 :c hnote: aexpanded from macro 'ABSL_INTERNAL_X'r
* ab  s133l | _ n o n n u l l   f uAnBcStLi_oInN_TnEaRmNeA(L)_ AcToTnRsItB UnToEe_xCcAePpTtU R{E
D      _| B                        ^Y
(t/usr/local/clang/include/absl/base/nullability.hh:i241s:)22):,  note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l\l
       _| N                                              ^~~~o
nnull
      |                      ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |      In file included from  s2/s2padded_cell.cc : 18 :
 In file included from t../src/s2/s2padded_cell.hh:i22s:
)In file included from )../src/s2/r2rect.h): 24A:
BIn file included from S../src/s2/base/logging.hL:_21A:
TIn file included from T/usr/local/clang/include/absl/log/check.hR:I37B:
UIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:_21L:
IIn file included from F/usr/local/clang/include/absl/log/internal/check_op.hE:T41I:
MIn file included from E/usr/local/clang/include/absl/log/internal/strip.h_:B26O:
UIn file included from N/usr/local/clang/include/absl/log/internal/log_message.hD: 53{:
 /usr/local/clang/include/absl/types/source_location.h : 150 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      150  |                               \ 
        |                 ^ 
   /usr/local/clang/include/absl/container/internal/common.h : 32 : 9c:o nnote: smacro 'ABSL_INTERNAL_IF_false' defined heret
 ch   a32r | *# daebfsiln_en oAnBnSuLl_lI NfTiElReN_AnLa_mIeF)_
f      a| l                                       ^s
e(/usr/local/clang/include/absl/base/nullability.hi:f241_:s22a:t inote: sexpanded from macro 'absl_nonnull'f
ie  d241, |  #.d.e.f)i n_e_ VaAb_sAlR_GnSo_n_n
u      l| l        ^ 
_Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2max_distance_targets.cc161: | 32 :
 In file included from L../src/s2/s2shape_index_region.ho:g25M:
eIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.hs:a45g:
e&/usr/local/clang/include/absl/container/internal/raw_hash_map.h :o202p:e3r:a twarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
<<(co  n202s | t   vAoBiSdL*_ IaNbTsElR_NnAuLl_lXa(bilnes e rvt)_ o{r
_      a| s                                     ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,257 :i23n:s enote: rexpanded from macro 'absl_nullable't
_o  r257_ | a#sdseifginn_ei mapbls,l _&n&u,l lcaobnlset &_,N utlrluaeb,
l      e| 
  ^      
|                       ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSLIn file included from _s2/s2padded_cell.ccI:N18T:
EIn file included from R../src/s2/s2padded_cell.hN:A22L:
_In file included from I../src/s2/r2rect.hF:_24t:
rIn file included from u../src/s2/base/logging.he:(21i:
fIn file included from _/usr/local/clang/include/absl/log/check.hs:a37t:
iIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hf:i21e:
dIn file included from ,/usr/local/clang/include/absl/log/internal/check_op.h :.41.:
.In file included from )/usr/local/clang/include/absl/log/internal/strip.h :i26f:
_/usr/local/clang/include/absl/log/internal/log_message.hs:a179t:i35s:f iwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d

      |         ^  
179 |   LogMessage& operIn file included from as2/s2max_distance_targets.cct:o32380r:
 warning<In file included from s<../src/s2/s2shape_index_region.h generated(:.
w25c:
hIn file included from a/usr/local/clang/include/absl/container/flat_hash_map.hr:_45t:
*/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a202b:s3l:_ nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
lable   v202) | ; 
       A| B                                  ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N257T:E23R:N Anote: Lexpanded from macro 'absl_nullable'_
X(  i257n | s#edretf_ionre_ aasbssilg_nn,u lilnasbelret __oNru_lalsasbilgen
_      i| m                      ^p
l, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, coIn file included from ns2/s2padded_cell.ccs:t18_:
iIn file included from t../src/s2/s2padded_cell.he:r22a:
tIn file included from o../src/s2/r2rect.hr: 24A:
BIn file included from S../src/s2/base/logging.hL:_21I:
NIn file included from T/usr/local/clang/include/absl/log/check.hE:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:C21O:
MIn file included from M/usr/local/clang/include/absl/log/internal/check_op.hA:)41;:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~26
:
/usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h190::13342::47 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_INTERNAL_X'
    190133 |  |     L o g M e s s a gAeB&S Lo_pIeNrTaEtRoNrA<L<_A(TsTtRdI:B:UoTsEt_rCeAaPmT&U R(E*Da_bBsYl(_tnhoinsn)u)l,l   m ) ( s t d : : o s t r e a m &   o s ) ) ; 
        | \                                         ^

      | /usr/local/clang/include/absl/base/nullability.h                                              ^~~~:
241:22: note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/raw_hash_map.h  :241202 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e/usr/local/clang/include/absl/container/internal/raw_hash_map.h :a135b:s16l:_ nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
nul  l135  | _ N o n n u l l 
        | t                     ^h
is))) ABSL_ATTRIBUTE_LIFETIME_BOUND {    In file included from  s2/s2padded_cell.cc : 18 :
 In file included from  ../src/s2/s2padded_cell.h : 22 :
 In file included from  ../src/s2/r2rect.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h\:
21      :
| In file included from                ^/usr/local/clang/include/absl/log/internal/check_op.h
:41:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h31::269:
:/usr/local/clang/include/absl/log/internal/log_message.h :191note: :macro 'ABSL_INTERNAL_IF_true' defined here43
: warning:    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
 | #de  f191i | n e  LAoBgSMLe_sIsNaTgEeR&N AoLp_eIrFa_ttorru<e<((isft_ds:a:tiiossf_ibeads,e &. .(.*)a bisfl__snaotninsuflile dm
)      (| s        ^t
d::ios_base& In file included from os2/s2max_distance_targets.ccs:)32):
;In file included from 
../src/s2/s2shape_index_region.h      :| 25                                          ^:

In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/base/nullability.h::45241:
:/usr/local/clang/include/absl/container/internal/raw_hash_map.h22::202 :note: 3expanded from macro 'absl_nonnull':
   warning: 241'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
#defi  n202e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |       In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
            true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(ifIn file included from _s2/s2padded_cell.ccs:a18t:
iIn file included from s../src/s2/s2padded_cell.hf:i22e:
dIn file included from ,../src/s2/r2rect.h :.24.:
.In file included from )../src/s2/base/logging.h :i21f:
_In file included from s/usr/local/clang/include/absl/log/check.ha:t37i:
sIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:e21d:

In file included from       /usr/local/clang/include/absl/log/internal/check_op.h| :        ^41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     consIn file included from ts2/s2max_distance_targets.cc :w32c:
hIn file included from a../src/s2/s2shape_index_region.hr:_25t:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_map.ha:b45s:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:n207u:l3l:a bwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
 const  &207  | v ) ;A
B      S| L                   ^_
INTE/usr/local/clang/include/absl/base/nullability.hR:N257A:L23_:X (note: iexpanded from macro 'absl_nullable'n
se  r257t | _#odre_faisnsei ganb,s li_nnsuelrlta_bolre_ a_sNsuilglna_bilmep
l      ,|                        ^&
&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_itIn file included from es2/s2padded_cell.ccr:a18t:
oIn file included from r../src/s2/s2padded_cell.h :A22B:
SIn file included from L../src/s2/r2rect.h_:I24N:
TIn file included from E../src/s2/base/logging.hR:N21A:
LIn file included from _/usr/local/clang/include/absl/log/check.hC:O37M:
MIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.h):;21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::26135:
:/usr/local/clang/include/absl/log/internal/log_message.h11::321 :52note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  135 |     321  |  i n l i n e  tLhoigsM)e)s)s aAgBeS&L _LAoTgTMReIsBsUaTgEe_:L:IoFpEeTrIaMtEo_rB<O<U(NwDc h{a r _ t *   a b s l _ n u l l a b l e   v )   { 
        |                                                     ^ 
  \/usr/local/clang/include/absl/base/nullability.h
:      257| :          ^~~~23
: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnu/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l209 :s3i:n kwarning: ,passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      |                                              ^
  209 | /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eXf(iinnes earbts_lo_rn_oansnsuilgln ,_ Nionnsneurltl_
o      r| _                     ^a
ssign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTIn file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
RIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2max_distance_targets.cc:32:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      In file included from | s2/s2padded_cell.cc                                 ^:
18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2point_region.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2point_region.h37::
23In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/base/logging.h21::
21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/check.h180::3742:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
  In file included from 180/usr/local/clang/include/absl/log/internal/strip.h | :A26B:
SIn file included from L/usr/local/clang/include/absl/log/internal/log_message.h_:A47T:
TIn file included from R/usr/local/clang/include/absl/log/internal/structured_proto.hI:B27U:
TIn file included from E/usr/local/clang/include/absl/log/internal/proto.h_:P34U:
R/usr/local/clang/include/absl/types/span.hE:_213F:U34N:C Twarning: Itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]O
N c  o213n | s t  ucshianrg*  caobnsslt__npooninnutlelr  M=a kceoCnhsetc kTF*a ialbSstlr_innugl(l
a      b| i                                         ^l
ity/usr/local/clang/include/absl/base/nullability.h_:u241n:k22n:o wnote: nexpanded from macro 'absl_nonnull';

      |                                    ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e289f:i34n:e  note: aexpanded from macro 'absl_nullability_unknown'b
sl  _289n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
ility_unknoIn file included from ws2/s2padded_cell.ccn: 18_:
NIn file included from u../src/s2/s2padded_cell.hl:l22_:
uIn file included from n../src/s2/r2rect.hs:p24e:
cIn file included from i../src/s2/base/logging.hf:i21e:
dIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                 ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: In file included from warning: s2/s2point_region.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2point_region.h  :18923 | :
iIn file included from n../src/s2/base/logging.hl:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_op.h:::41S:
tIn file included from a/usr/local/clang/include/absl/log/internal/strip.ht:u26s:
*In file included from  /usr/local/clang/include/absl/log/internal/log_message.ha:b47s:
lIn file included from _/usr/local/clang/include/absl/log/internal/structured_proto.hn:o27n:
nIn file included from u/usr/local/clang/include/absl/log/internal/proto.hl:l34 :
As/usr/local/clang/include/absl/types/span.hS:t733a:t31u:s (warning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nst ab  s733l | :c:oSntsatteuxsp&r  sS)p a{n
<      T| >                           ^ 
Make/usr/local/clang/include/absl/base/nullability.hS:p241a:n22(:T *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  apbtsrl _AnBoSnLn_uAlTlT R_INBoUnTnEu_lLlI
F      E| T                     ^I
ME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      | In file included from                       ^s2/s2padded_cell.cc
:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_In file included from ns2/s2point_region.cco:n18n:
uIn file included from l../src/s2/s2point_region.hl: 23A:
sIn file included from S../src/s2/base/logging.ht:a21t:
uIn file included from s/usr/local/clang/include/absl/log/check.h(:c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht: 21a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_op.hl::41::
SIn file included from t/usr/local/clang/include/absl/log/internal/strip.ha:t26u:
sIn file included from O/usr/local/clang/include/absl/log/internal/log_message.hr:<47T:
>In file included from &/usr/local/clang/include/absl/log/internal/structured_proto.h :s27):
 In file included from {/usr/local/clang/include/absl/log/internal/proto.h
:      34| :
                    ^
/usr/local/clang/include/absl/types/span.h:739/usr/local/clang/include/absl/base/nullability.h::21241:: 22warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
    739241 |  | S#pdaenf<iTn>e  MaabkselS_pnaonn(nTu*l la b_sNlo_nnnuulllla
b      l| e                     ^ 
begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2padded_cell.ccn:e18 :
aIn file included from b../src/s2/s2padded_cell.hs:l22_:
nIn file included from u../src/s2/r2rect.hl:l24a:
bIn file included from l../src/s2/base/logging.he: 21_:
NIn file included from u/usr/local/clang/include/absl/log/check.hl:l37a:
bIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.he:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                      ^:
202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |  In file included from  s2/s2point_region.cce:x18p:
lIn file included from i../src/s2/s2point_region.hc:i23t:
 In file included from C../src/s2/base/logging.hh:e21c:
kIn file included from O/usr/local/clang/include/absl/log/check.hp:M37e:
sIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ha:g21e:
BIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hi:l41d:
eIn file included from r/usr/local/clang/include/absl/log/internal/strip.h(:c26o:
nIn file included from s/usr/local/clang/include/absl/log/internal/log_message.ht: 47c:
hIn file included from a/usr/local/clang/include/absl/log/internal/structured_proto.hr:*27 :
aIn file included from b/usr/local/clang/include/absl/log/internal/proto.hs:l34_:
n/usr/local/clang/include/absl/types/span.ho:n740n:u21l:l  warning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]x
prt  e740x | t ) ; 
        |                                               ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'T
*   a241b | s#ld_enfuilnlea balbes le_nndo)n nnuolelx c_eNpotn n{u
l      l| 
                    ^      
|                      ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* In file included from as2/s2padded_cell.ccb:s18l:
_In file included from n../src/s2/s2padded_cell.hu:l22l:
aIn file included from b../src/s2/r2rect.hl:e24 :
pIn file included from t../src/s2/base/logging.hr: 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37A:
TIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hR:I21B:
U/usr/local/clang/include/absl/log/internal/check_op.hT:E226_:L59I:F Ewarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
ME_B  O226U | NvDo,i ds iMzaek_etC hseiczkeO)p VnaoleuxecSetprti n{g
(      s| t       ^d
::o/usr/local/clang/include/absl/base/nullability.hs:t257r:e23a:m &note:  expanded from macro 'absl_nullable'o
s,   257c | o#ndsetf ivnoei da*b salb_snlu_lnlualbllaeb l_eN upl)l;a
b      l| e                                                          ^

      |                       ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2polyline_measures.cc -o s2/s2polyline_measures.o
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2point_compression.cca:b17s:
lIn file included from _../src/s2/s2point_compression.hn:o50n:
nIn file included from u../src/s2/util/coding/coder.hl:l36 :
_In file included from N../src/s2/base/casts.ho:n34n:
uIn file included from l/usr/local/clang/include/absl/log/log.hl:
209      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
In file included from s2/s2padded_cell.cc:/usr/local/clang/include/absl/types/source_location.h18::
113In file included from :../src/s2/s2padded_cell.h19::22 :
In file included from warning: ../src/s2/r2rect.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
24:
In file included from ../src/s2/base/logging.h:21:
In file included from   /usr/local/clang/include/absl/log/check.h113: | 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
c/usr/local/clang/include/absl/log/internal/check_op.ho:n460s:t66 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
*   a460b | sAlB_SnLo_nLnOuGl_lI NfTiElReN_AnLa_mDeE F=I N_E__bMuAiKlEt_iCnH_EFCIKL_EO(P)_)S T{R
I      N| G                  ^_
EXTER/usr/local/clang/include/absl/base/nullability.hN:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_)n;o
n      n| u                                                                 ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22In file included from :
s2/s2point_compression.ccIn file included from :../src/s2/r2rect.h17::
24In file included from :
../src/s2/s2point_compression.hIn file included from :../src/s2/base/logging.h50::
21In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/log/check.h36::
37In file included from :
../src/s2/base/casts.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h34::
21In file included from :
/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/log/internal/check_op.h::209460:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
365 warnings generated.
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from In file included from ../src/s2/s2padded_cell.hs2/s2point_compression.cc::2217:
:
In file included from In file included from ../src/s2/r2rect.h../src/s2/s2point_compression.h::2450:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/util/coding/coder.h::2136:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/base/casts.h::3734:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/log.h::21209:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h460::221:
:/usr/local/clang/include/absl/log/internal/log_message.h :warning: 119type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
41: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]460
 | AB  S119L | _ L OLGo_gIMNeTsEsRaNgAeL&_ DTEoFSIiNnEk_AMlAsKoE(_aCbHsElC:K:_LOoPg_SSiTnRkI*N Ga_bEsXlT_EnRoNn(ncuolnls ts icnhka)r;*
       a| b                                        ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote: )expanded from macro 'absl_nonnull';

        | 241^ | 
#d/usr/local/clang/include/absl/log/internal/check_op.he:f450i:n25e:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
l_  n450o | n n u l l   _xN,o nxn,u lclo
n      s| t                     ^ 
char* absl_nonnull)
      | In file included from                         ^s2/s2point_compression.cc
:17:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point_compression.h241::5022:
:In file included from  ../src/s2/util/coding/coder.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from   ../src/s2/base/casts.h241: | 34#:
dIn file included from e/usr/local/clang/include/absl/log/log.hf:i209n:
eIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.ha:b22s:
l/usr/local/clang/include/absl/log/internal/log_message.h_:n121o:n41n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_No  n121n | u l lL
o      g| M                     ^e
ssage& ToSinkOnly(absl::LogSink* absl_nonnull sink);In file included from 
s2/s2padded_cell.cc      :| 18                                        ^:

In file included from ../src/s2/s2padded_cell.h:/usr/local/clang/include/absl/base/nullability.h22::
241In file included from :../src/s2/r2rect.h22::24 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b461s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   461_ | NAoBnSnLu_lLlO
G      _| I                     ^N
TERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      | In file included from                               ^s2/s2point_compression.cc
:17:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point_compression.h241::5022:
:In file included from  ../src/s2/util/coding/coder.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from   ../src/s2/base/casts.h241: | 34#:
dIn file included from e/usr/local/clang/include/absl/log/log.hf:i209n:
eIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.ha:b22s:
l/usr/local/clang/include/absl/log/internal/log_message.h_:n158o:n32n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
_No  n158n | u l lL
o      g| M                     ^e
ssage&In file included from  s2/s2padded_cell.cco:p18e:
rIn file included from a../src/s2/s2padded_cell.ht:o22r:
<In file included from <../src/s2/r2rect.h(:v24o:
iIn file included from d../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
l/usr/local/clang/include/absl/log/internal/check_op.he: 462 :v24):  {warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                ^  
462 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23c:o nnote: sexpanded from macro 'absl_nullable't
 s  i257g | n#edde fcihnaer *a basbls_ln_unlolnanbullel )_;N
u      l| l                       ^a
bl/usr/local/clang/include/absl/base/nullability.he:
241      :| 22                      ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2point_compression.ccn:n17u:
lIn file included from l../src/s2/s2point_compression.h :_50N:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from 
../src/s2/base/casts.h      :| 34                     ^:

In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.hs2/s2padded_cell.cc::16118::
38In file included from :../src/s2/s2padded_cell.h :warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/r2rect.h:24:
  In file included from 161../src/s2/base/logging.h | : 21 :
LIn file included from o/usr/local/clang/include/absl/log/check.hg:M37e:
sIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ha:g21e:
&/usr/local/clang/include/absl/log/internal/check_op.h :o462p:e24r:a twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
<</usr/local/clang/include/absl/base/nullability.h(:c241o:n22s:t  note: vexpanded from macro 'absl_nonnull'o
id  *241  | a#bdself_innuel laabbslle_ n ovn)n u{l
l       | _                                     ^N
on/usr/local/clang/include/absl/base/nullability.hn:u257l:l23
:       | note:                      ^expanded from macro 'absl_nullable'

  257 | #In file included from ds2/s2padded_cell.cce:f18i:
nIn file included from e../src/s2/s2padded_cell.h :a22b:
sIn file included from l../src/s2/r2rect.h_:n24u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/log/check.h_:N37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
e/usr/local/clang/include/absl/log/internal/check_op.h
:      461| :                      ^1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2point_compression.cc | :#17d:
eIn file included from f../src/s2/s2point_compression.hi:n50e:
 In file included from a../src/s2/util/coding/coder.hb:s36l:
_In file included from n../src/s2/base/casts.ho:n34n:
uIn file included from l/usr/local/clang/include/absl/log/log.hl: 209_:
NIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hn:n22u:
l/usr/local/clang/include/absl/log/internal/log_message.hl:
179      :| 35                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wcIn file included from hs2/s2padded_cell.cca:r18_:
tIn file included from *../src/s2/s2padded_cell.h :a22b:
sIn file included from l../src/s2/r2rect.h_:n24u:
lIn file included from l../src/s2/base/logging.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/log/check.hv:)37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                  ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::463257::123::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

    257463 |  | #AdBeSfLi_nLeO Ga_bIsNlT_EnRuNlAlLa_bDlEeF I_NNEu_lMlAaKbEl_eC
H      E| C                      ^K
_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const chaIn file included from rs2/s2point_compression.cc* absl_nonnull MakeCheck:OpS17t:
rIn file included from i../src/s2/s2point_compression.hn:g50(:
 In file included from  ../src/s2/util/coding/coder.h: 36\:

In file included from       ../src/s2/base/casts.h| :                              ^34
:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::241190::2242:/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2polyline_simplifier.cc -o s2/s2polyline_simplifier.o
:  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | #  d190e | f i nLeo gaMbessls_angoen&n uolple r_aNtoonrn<u<l(ls
t      d| :                     ^:
ostream& (*absl_nonIn file included from ns2/s2padded_cell.ccu:l18l:
 In file included from m../src/s2/s2padded_cell.h):(22s:
tIn file included from d../src/s2/r2rect.h:::24o:
sIn file included from t../src/s2/base/logging.hr:e21a:
mIn file included from &/usr/local/clang/include/absl/log/check.h :o37s:
)In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h;:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                                         ^:
464:26: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 464expanded from macro 'absl_nonnull' | 
     241  | c#odnesfti nuen saibgsnle_dn ocnhnaurl*l  a_bNsoln_nnuolnln
u      l| l                     ^)
;
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:In file included from 18s2/s2point_compression.cc:
:In file included from 17../src/s2/s2padded_cell.h:
:In file included from 22../src/s2/s2point_compression.h:
:In file included from 50../src/s2/r2rect.h:
:In file included from 24../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/base/logging.h:
:In file included from 21../src/s2/base/casts.h:
:In file included from 34/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/log/log.h:
:In file included from 209/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/log_impl.h:
:/usr/local/clang/include/absl/log/internal/check_op.h22::
464/usr/local/clang/include/absl/log/internal/log_message.h::26191:: 43:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22:   191note:  | expanded from macro 'absl_nonnull' 
 L  o241g | M#edsesfaignee&  aobpselr_antoonrn<u<l(ls t_dN:o:ninousl_lb
a      s| e                     ^&
 (*absIn file included from lIn file included from s2/s2padded_cell.cc_:s2/s2min_distance_targets.ccn18:o:
18nIn file included from :
n../src/s2/s2padded_cell.hIn file included from u:../src/s2/s2min_distance_targets.hl22:l:
29 In file included from :
m../src/s2/r2rect.hIn file included from ):../src/s2/s1angle.h(24:s:
28tIn file included from :
d../src/s2/base/logging.hIn file included from ::../src/s2/s2point.h:21:i:
25oIn file included from :
s/usr/local/clang/include/absl/log/check.hIn file included from _:../src/s2/util/coding/coder.hb37:a:
36sIn file included from :
e/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from &:../src/s2/base/casts.h 21:o:
34s/usr/local/clang/include/absl/log/internal/check_op.h:
):In file included from )463/usr/local/clang/include/absl/log/log.h;::
1209      ::
|  In file included from                                           ^warning: /usr/local/clang/include/absl/log/internal/log_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
22/usr/local/clang/include/absl/base/nullability.h:
:In file included from   241/usr/local/clang/include/absl/log/internal/log_message.h463:: | 2253A::
B /usr/local/clang/include/absl/types/source_location.hnote: S:expanded from macro 'absl_nonnull'L113
_:L  19O241:G | _ #Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dT
eEfRiN  nA113eL |   _a DbE s Fl I_ NncEoo_nnMnsAutKlE _lcC Hh_aENCro*Kn _naOubPls_llS
T_      Rn| Io                     ^Nn
nGu_lElX TfEiRlNe(_
n      a| m^e
 =/usr/local/clang/include/absl/log/internal/check_op.h :_450_:b25u:i lnote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
n_  F450I | L E ( ) )   {x
,       | x                  ^,
 con/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel )a
b      s| l                        ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from In file included from s2/s2padded_cell.cc../src/s2/s2min_distance_targets.h::1829:
:
In file included from In file included from ../src/s2/s2padded_cell.h../src/s2/s1angle.h::2228:
:
In file included from In file included from ../src/s2/r2rect.h../src/s2/s2point.h::2425:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/util/coding/coder.h::2136:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/base/casts.h::3734:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/log.h::21209:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/log_impl.h::46522::
1In file included from :/usr/local/clang/include/absl/log/internal/log_message.h :warning: 53type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/types/source_location.h:133:25  :465  | warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_L  O133G | _ I NcToEnRsNtAeLx_pDrE FcIoNnEs_tM AcKhEa_rC*H EaCbKs_lO_Pn_oSnTnRuIlNlG _fEiXlTeE_RnNa(mceo(n)s tc ovnositd *n oaebxscle_pnto n{n
u      In file included from l| s2/s2point_compression.ccl                        ^:)
17;:
/usr/local/clang/include/absl/base/nullability.h
In file included from :      ../src/s2/s2point_compression.h241| :^:50
22:
:In file included from /usr/local/clang/include/absl/log/internal/check_op.h ../src/s2/util/coding/coder.h:note: :expanded from macro 'absl_nonnull'44936
::
31  In file included from :241../src/s2/base/casts.h  | :note: #34expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'd:

eIn file included from f/usr/local/clang/include/absl/log/log.h  i:449n209e | :
  In file included from a /usr/local/clang/include/absl/log/internal/log_impl.heb:xs22lt:
_e/usr/local/clang/include/absl/log/internal/log_message.hnr:on306n :ntue3lm:lp  lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aN
otnen   u306clo | nl 
s       ta | bc                     ^sh
alr_*n oanbnsull_ln osntndu:In file included from l:ls2/s2min_distance_targets.ccu :Mn18ai:
kqeIn file included from uCeh_epctkrO<pLSotgrMiensgs(a g e D\a
t      a| >                              ^ 
da/usr/local/clang/include/absl/base/nullability.ht:a241_:;22
:       | note:   ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      In file included from | s2/s2padded_cell.cc                     ^:
18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:In file included from 21s2/s2min_distance_targets.cc:
:In file included from 18/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2min_distance_targets.h:
:In file included from 29/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s1angle.h:
:28:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.h::46525::
66In file included from :../src/s2/util/coding/coder.h :36warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
  /usr/local/clang/include/absl/log/internal/log_message.h465: | 80A:B26S:L _warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O
G_I   N80T | E R NLAoLg_MDeEsFsIaNgEe_(McAoKnEs_tC HcEhCaKr_*O Pa_bSsTlR_InNoGn_nEuXlTlE RfNi(lceo,n sitn tv oliidn*e ,a
b      s| l                         ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22):; 
      note: | expanded from macro 'absl_nonnull'                                                                 ^

  241 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2padded_cell.ccIn file included from :../src/s2/s2point.h18::
25In file included from :
../src/s2/s2padded_cell.hIn file included from :../src/s2/util/coding/coder.h22::
36In file included from :
../src/s2/r2rect.hIn file included from :../src/s2/base/casts.h24::
34In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/log/log.h21::
209In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h37::
22In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/log_message.h::2182:
:/usr/local/clang/include/absl/log/internal/check_op.h26::465 :warning: 66type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
82 | /usr/local/clang/include/absl/base/nullability.h : 241L:o22g:M enote: sexpanded from macro 'absl_nonnull's
ag  e241( | c#odnesfti nceh aarb*s la_bnsoln_nnuolnln u_lNlo nfniullel,
       i| n                     ^t
 line,
In file included from       s2/s2padded_cell.cc| :                         ^18
:
In file included from ../src/s2/s2padded_cell.h/usr/local/clang/include/absl/base/nullability.h::22241:
:In file included from 22../src/s2/r2rect.h:: 24note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:  21241:
 | In file included from #/usr/local/clang/include/absl/log/check.hd:e37f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l465_:n1o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _  N465o | nAnBuSlLl_
L      O| G                     ^_
INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2min_distance_targets.ccN:o18n:
nIn file included from u../src/s2/s2min_distance_targets.hl:l29
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnulIn file included from ls2/s2padded_cell.cc :s18i:
nIn file included from k../src/s2/s2padded_cell.h):;22
:
      In file included from | ../src/s2/r2rect.h                                        ^:
24:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d502e:f1i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _502n | oAnBnSuLl_lL O_GN_oInNnTuElRlN
A      L| _                     ^C
HECK_OP_IMPL(Check_EQ, ==In file included from )s2/s2min_distance_targets.cc
:      18| :
^In file included from 
../src/s2/s2min_distance_targets.h:29/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 488../src/s2/s1angle.h::3228::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
25:
In file included from ../src/s2/util/coding/coder.h  :48836 | :
 In file included from  ../src/s2/base/casts.hiIn file included from :ns2/s2point_compression.cc34l::
i17In file included from n:
/usr/local/clang/include/absl/log/log.heIn file included from : ../src/s2/s2point_compression.h209c::
o50nIn file included from :
s/usr/local/clang/include/absl/log/internal/log_impl.htIn file included from :e../src/s2/util/coding/coder.h22x::
p/usr/local/clang/include/absl/log/internal/log_message.h36r::
 121In file included from c:../src/s2/base/casts.ho41:n:34s twarning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] In file included from 
c/usr/local/clang/include/absl/log/log.hh:a  209r121:
* |  In file included from  a/usr/local/clang/include/absl/log/internal/log_impl.h b:Ls22ol:
g_M/usr/local/clang/include/absl/log/internal/log_message.hne:us319ls:la20ag:be &lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]eT
o Sni  an319km | O en #l #y I(cmaobpnlss(lt:  : wL co hg aS ri _n tk **    aa bb ss l l _ _n nuo ln\l
nau      bl| ll                               ^e 
 sci/usr/local/clang/include/absl/base/nullability.hon:nk257s):t;&23
 :      v | )                                        ^note: ;expanded from macro 'absl_nullable'


      /usr/local/clang/include/absl/base/nullability.h| :                   ^  241
257: | 22#/usr/local/clang/include/absl/base/nullability.hd:e: f257inote: :nexpanded from macro 'absl_nonnull'e23
 :  a 241bnote:  | sexpanded from macro 'absl_nullable'#l
_dn  eu257fl | il#nadeeb falibens e_l _Nanubolslnlan_ubnllulel 
l_      aN| bo                      ^ln
en u_lNlu
l      l| a                     ^b
le
      | In file included from                       ^s2/s2padded_cell.cc
:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1In file included from ,s2/s2point_compression.cc :c17o:
nIn file included from s../src/s2/s2point_compression.ht: 50T:
2In file included from &../src/s2/util/coding/coder.h :v362:
,In file included from  ../src/s2/base/casts.hc:o34n:
sIn file included from t/usr/local/clang/include/absl/log/log.h :c209h:
aIn file included from r/usr/local/clang/include/absl/log/internal/log_impl.h*: 22a:
b/usr/local/clang/include/absl/log/internal/log_message.hsIn file included from :ls2/s2min_distance_targets.cc321_::n1852o:
:nIn file included from  n../src/s2/s2min_distance_targets.hwarning: u:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l29l
:
 In file included from e../src/s2/s1angle.h  x:p321r28 | t:
ieIn file included from nx../src/s2/s2point.hlt:)i25 n{:
e In file included from   ../src/s2/util/coding/coder.hL :o 36g :
M\In file included from e
../src/s2/base/casts.hs      :s| 34a                                              ^:
g
In file included from e/usr/local/clang/include/absl/log/log.h&/usr/local/clang/include/absl/base/nullability.h: :209L241:
o:In file included from g22/usr/local/clang/include/absl/log/internal/log_impl.hM::e 22snote: :
s/usr/local/clang/include/absl/log/internal/log_message.hexpanded from macro 'absl_nonnull'a:g
158e::32::o pwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
ato  r158< | < ( wLcohgaMre_sts*a gaeb&s lo_pneurlaltaobrl<e< (vv)o i{d
*       | a                                                   ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:u257l:l23a:b lnote: eexpanded from macro 'absl_nullable' 
 v  )257  | {#
d      e| f                               ^i
ne/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: uexpanded from macro 'absl_nullable'l
la  b257l | e# d_eNfuilnlea balbes
l      _| n                      ^u
llable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _In file included from Ns2/s2point_compression.ccu:l17l:
aIn file included from b../src/s2/s2point_compression.hl:e50
:
      In file included from | ../src/s2/util/coding/coder.h                      ^:
36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2min_distance_targets.ccn:u18l:
lIn file included from  ../src/s2/s2min_distance_targets.h_:N29o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^25
:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  241 | #define abslIn file included from _s2/s2point_compression.ccn:o17n:
nIn file included from u../src/s2/s2point_compression.hl:l50 :
_In file included from N../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl:
34      :
| In file included from                      ^/usr/local/clang/include/absl/log/log.h
:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:In file included from 21s2/s2point_compression.cc:
:In file included from 17/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2point_compression.h:
:In file included from 50/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/util/coding/coder.h:
:36/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 502../src/s2/base/casts.h::134::
 In file included from warning: /usr/local/clang/include/absl/log/log.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
209:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/log_impl.h::49722::
32/usr/local/clang/include/absl/log/internal/log_message.h:: 426note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'31
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
497 |     426i | n l iLnoeg MceosnssatgeexFpart aclo(ncsotn scth acrh*a ra*b salb_snlu_lnloanbnluel ln afmiel#e#,I mipnlt(  l i n e , 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: \expanded from macro 'absl_nonnull'

      |                                  ^241
 | #d/usr/local/clang/include/absl/base/nullability.he:f257i:n23e:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli n_eN oanbnsull_ln
u      l| l                     ^a
ble _NullabIn file included from ls2/s2point_compression.cce:
17      :
| In file included from                       ^../src/s2/s2point_compression.h
:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.hIn file included from :s2/s2padded_cell.cc209::
18In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :../src/s2/s2padded_cell.h22::
22/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 427../src/s2/r2rect.h::3124::
 In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/log/check.h:  37427:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 502 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 498c:o35n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'c
har  *498  | a b s l _ n oinnntu lvl1 ,f aiinltu rve2_,m scgo)n sAtB ScLh_aArT*T RaIbBsUlT_En_oCnOnLuDl;l
       e| x                              ^p
rt/usr/local/clang/include/absl/base/nullability.he:x241t:)22 :{  note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                  ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2padded_cell.ccs:l18_:
nIn file included from o../src/s2/s2padded_cell.hn:n22u:
lIn file included from l../src/s2/r2rect.h :_24N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:In file included from 1s2/s2min_distance_targets.cc:: 18:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2min_distance_targets.h
:29:
In file included from ../src/s2/s1angle.h:28  :
503In file included from  | ../src/s2/s2point.hA:B25S:
LIn file included from _../src/s2/util/coding/coder.hL:O36G:
_In file included from I../src/s2/base/casts.hN:T34E:
RIn file included from N/usr/local/clang/include/absl/log/log.hA:L209_:
CIn file included from H/usr/local/clang/include/absl/log/internal/log_impl.hE:C22K:
_/usr/local/clang/include/absl/log/internal/log_message.hO:P427_:I31M:P Lwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
hec  k427_ | N E                 const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      | 575                      ^ warning
s generated.
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_In file included from Cs2/s2point_compression.ccH:E17C:
KIn file included from _../src/s2/s2point_compression.hO:P50_:
IIn file included from M../src/s2/util/coding/coder.hP:L36(:
CIn file included from h../src/s2/base/casts.he:c36k:
_In file included from G../src/s2/base/logging.hE:,21 :
>In file included from =/usr/local/clang/include/absl/log/check.h):
37      :
| In file included from ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h::488298::3222::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  488   | 298  |  cionnlsitn eu ncsoingsnteedx pcrh acro*n satb sclh_anro*n naublsll _onpuelrlaatbolre< <n(asmted#:#:Ibmapsli(c _ o s t r e a m < c h a r ,   T r a i\t
s      >| &                               ^,

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257/usr/local/clang/include/absl/base/nullability.h::23241:: 22:note:  expanded from macro 'absl_nullable'note: 
expanded from macro 'absl_nonnull'
    257241 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbll e_ N_oNnunlullalb
l      e| 
                     ^      
|                       ^
In file included from In file included from s2/s2point_compression.ccs2/s2padded_cell.cc::1718:
:
In file included from In file included from ../src/s2/s2point_compression.h../src/s2/s2padded_cell.h::5022:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/r2rect.h::3624:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/base/logging.h::3621:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_impl.h::3721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_impl.h::50621::
1/usr/local/clang/include/absl/log/internal/check_op.h:: 299warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
: /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]489
:47:   note: 299expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' | 
       489  |              c o n s t   T 1 &   v 1 ,   c o n s t   T 2 &   v 2 ,   c o n s tc ocnhsatr *u nasbisgln_endo ncnhualrl*  eaxbpsrlt_enxotn)n u{l l ) ; 
       \| 
                                                                  ^      
|                                               ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :note: 22expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faineb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullIn file included from as2/s2point_compression.ccb:l17e:
 In file included from n../src/s2/s2point_compression.ha:m50e:
#In file included from #../src/s2/util/coding/coder.hI:m36p:
lIn file included from (../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h\:
323      :| 46                               ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:   323 | note:  expanded from macro 'absl_nullable' 
fr  i257e | n#dd evfoiinde  AabbssllF_onrumlaltaFbllues h_(NSutlrlianbglief
y      S| i                      ^n
k* absl_nonnullIn file included from  s2/s2padded_cell.ccs:i18n:
kIn file included from ,../src/s2/s2padded_cell.h
:      22| :
                                             ^In file included from 
../src/s2/r2rect.h:24:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d506e:f1i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_498n:o35n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
 _N  o498n | n u l l 
        | i                     ^n
t v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpStriIn file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from 37s2/s2min_distance_targets.cc:
:In file included from 18/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2min_distance_targets.h:
:29/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 507../src/s2/s1angle.h::128::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/util/coding/coder.h:36  :
507In file included from  | ../src/s2/base/casts.hA:B36S:
LIn file included from _../src/s2/base/logging.hL:O21G:
_In file included from I/usr/local/clang/include/absl/log/check.hN:T37E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hA:L21_:
C/usr/local/clang/include/absl/log/internal/check_op.hH:E181C:K25_:O Pwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
MPL(  C181h | e c k _ GcTo,n s>t) 
a      b| s^l
::S/usr/local/clang/include/absl/log/internal/check_op.ht:a488t:u32s:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_  n488o | n n uilnll isntea tcuosn,s tceoxnpsrt  ccohnasrt*  cahbasrl*_ naobnsnlu_lnlu lplraebfliex )n;a
m      e| #                        ^#
Im/usr/local/clang/include/absl/base/nullability.hp:l241(: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                               ^n
onn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nulIn file included from ls2/s2min_distance_targets.cca:b18l:
eIn file included from  ../src/s2/s2min_distance_targets.h_:N29u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from 
../src/s2/s2point.h      :| 25                      ^:

In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37In file included from :
s2/s2padded_cell.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h18::
21In file included from :
../src/s2/s2padded_cell.h/usr/local/clang/include/absl/log/internal/check_op.h::22181:
:In file included from 58../src/s2/r2rect.h:: 24:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :18137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21c:
o/usr/local/clang/include/absl/log/internal/check_op.hn:s507t: 1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:S/usr/local/clang/include/absl/log/internal/check_op.ht:a489t:u47s:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_  n489o | n n u l l   sctoantsuts ,T 1c&o nvs1t,  cchoanrs*t  aTb2s&l _vn2o,n ncuolnls tp rcehfairx*) ;a
b      s| l                                                         ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  enote: xexpanded from macro 'absl_nonnull'p
rt  e241x | t#)d e{f i n e   a\b
s      l| _                                              ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status&In file included from  s2/s2padded_cell.ccs:)18 :
{In file included from 
../src/s2/s2padded_cell.h      :| 22                           ^:

In file included from ../src/s2/r2rect.h:/usr/local/clang/include/absl/base/nullability.h24::
241In file included from :../src/s2/base/logging.h22::21 :
In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nonnull':
37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h241: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f507i:n1e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:o497n:n32u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
Nonnul  l497
 |        |                       ^i
nline constexpr const char* absl_nullable name##Impl(   In file included from  s2/s2min_distance_targets.cc : 18 :
 In file included from  ../src/s2/s2min_distance_targets.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h\:
25      :
| In file included from                                ^../src/s2/util/coding/coder.h
:36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/casts.h::25736::
23In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/check.h:37  :
257In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
f/usr/local/clang/include/absl/log/internal/check_op.hi:n193e: 21a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a193b | lceo n_sNtu lalbasbll:e:
S      t| a                      ^t
us* absl_nIn file included from os2/s2padded_cell.ccn:n18u:
lIn file included from l../src/s2/s2padded_cell.h :A22s:
SIn file included from t../src/s2/r2rect.ha:t24u:
sIn file included from (../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h:::21S:
t/usr/local/clang/include/absl/log/internal/check_op.ha:t507u:s1O:r <warning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]>
& /usr/local/clang/include/absl/log/internal/check_op.hs:)498 :{35
:       | note:                     ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

/usr/local/clang/include/absl/base/nullability.h:241  :49822 | :   note:  expanded from macro 'absl_nonnull' 
    i241n | t# dve1f,i nien ta bvs2l,_ ncoonnnsutl lc h_aNro*n naublsll
_      n| o                     ^n
null exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2min_distance_targets.cce:f18i:
nIn file included from e../src/s2/s2min_distance_targets.h :a29b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l25l:
 In file included from _../src/s2/util/coding/coder.hN:o36n:
nIn file included from u../src/s2/base/casts.hl:l36
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ng(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2polyline.cc -o s2/s2polyline.o
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.hIn file included from :s2/s2padded_cell.cc50::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2padded_cell.h36::
22In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/r2rect.h36::
24In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/base/logging.h21::
21In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/log/check.h37::
37In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h21::
21/usr/local/clang/include/absl/log/internal/check_op.h:
:452/usr/local/clang/include/absl/log/internal/check_op.h::1511:: 13:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25  :511  | note: cexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
ns  t450  | c h a r *   axb,s lx_,n uclolnasbtl ec hCahre*c kasbtsrlc_mnpotnrnuuelIlm)p
l      (| 
                        ^      
|             ^/usr/local/clang/include/absl/base/nullability.h
:241:22:/usr/local/clang/include/absl/base/nullability.h :257note: :expanded from macro 'absl_nonnull'23
:   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2point_compression.cc21::
17In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2point_compression.h37::
50In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/util/coding/coder.h21::
36/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 512../src/s2/base/casts.h::1736::
 In file included from ../src/s2/base/logging.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h:  37512:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
c/usr/local/clang/include/absl/log/internal/check_op.ho:n453s:t1 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* a  b453s | lA_BnSuLl_lLaObGl_eI NsT1E,R NcAoLn_sDtE FcIhNaEr_*M AaKbEs_lC_HnEuClKl_aObPl_eS TsR2I,N
G      _| E                ^X
TE/usr/local/clang/include/absl/base/nullability.hR:N257(:u23i:n tnote: 6expanded from macro 'absl_nullable'4
_t  )257; | 
#      d| e^f
in/usr/local/clang/include/absl/log/internal/check_op.he: 449a:b31s:l _note: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
lla  b449l | e   _eNxutlelranb ltee
m      p| l                      ^a
te const cIn file included from hs2/s2padded_cell.cca:r18*:
 In file included from a../src/s2/s2padded_cell.hb:s22l:
_In file included from n../src/s2/r2rect.ho:n24n:
uIn file included from l../src/s2/base/logging.hl: 21M:
aIn file included from k/usr/local/clang/include/absl/log/check.he:C37h:
eIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hk:O21p:
S/usr/local/clang/include/absl/log/internal/check_op.ht:r512i:n47g:(  warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
\
      |                                 ^512
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en ualblsalb_lneo nsn1u,l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullablIn file included from es2/s2point_compression.cc :s172:
,In file included from 
../src/s2/s2point_compression.h      :| 50                                              ^:

In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36257:
:In file included from 23../src/s2/base/casts.h:: 36:
note: In file included from expanded from macro 'absl_nullable'../src/s2/base/logging.h
:21:
  In file included from 257/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b453s:l1_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ab/usr/local/clang/include/absl/log/internal/check_op.hl:e450 :_25N:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
bl  450 |  e In file included from 
s2/s2min_distance_targets.cc      :| 18                      ^:

In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from In file included from ../src/s2/util/coding/coder.hs2/s2padded_cell.cc::3618:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2padded_cell.h::3622:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/r2rect.h::2124:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/base/logging.h::3721:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_impl.h::22621::
59/usr/local/clang/include/absl/log/internal/check_op.h:: 513:warning: 17type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  226 |   v513o | i d   M ackoenCshte cckhOaprV*a laubesSlt_rnionngn(usltld :e:xopsrttreexatm)&; 
o      s| ,                ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22v:o inote: dexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneuflilnaeb laeb spl)_;n
o      n| n                                                          ^u
ll /usr/local/clang/include/absl/base/nullability.h_:N257o:n23n:u lnote: lexpanded from macro 'absl_nullable'

      |                      ^  
257 | #define absl_nullIn file included from as2/s2padded_cell.ccb:l18e:
 In file included from _../src/s2/s2padded_cell.hN:u22l:
lIn file included from a../src/s2/r2rect.hb:l24e:

In file included from       ../src/s2/base/logging.h| :                      ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
In file included from /usr/local/clang/include/absl/base/nullability.h:s2/s2min_distance_targets.cc257::1823:
:In file included from  ../src/s2/s2min_distance_targets.h:note: 29expanded from macro 'absl_nullable':

In file included from ../src/s2/s1angle.h:  28257:
 | In file included from #../src/s2/s2point.hd:e25f:
iIn file included from n../src/s2/util/coding/coder.he: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
uIn file included from l../src/s2/base/logging.hl:a21b:
lIn file included from e/usr/local/clang/include/absl/log/check.h :_37N:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
l/usr/local/clang/include/absl/log/internal/check_op.he:
276      :| 13                      ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276In file included from  | s2/s2padded_cell.ccc:o18n:
sIn file included from t../src/s2/s2padded_cell.h :v22o:
iIn file included from d../src/s2/r2rect.h*: 24a:
bIn file included from s../src/s2/base/logging.hl:_21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :o21p:
e/usr/local/clang/include/absl/log/internal/check_op.hr:a515t:o47r:< <warning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
td:  :515o | s t r e acmo&n,s
t       | c            ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'u
ll  a257b | l#ed esf1i,n ec oanbsstl _cnhualrl*a balbes l__Nnuullllaabbllee
       s| 2                      ^,

      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2min_distance_targets.cc23::18 :
In file included from note: ../src/s2/s2min_distance_targets.hexpanded from macro 'absl_nullable':
29:
In file included from   ../src/s2/s1angle.h257: | 28#:
dIn file included from e../src/s2/s2point.hf:i25n:
eIn file included from  ../src/s2/util/coding/coder.ha:b36s:
lIn file included from _../src/s2/base/casts.hn:u36l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from _/usr/local/clang/include/absl/log/check.hN:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 277                      ^:
50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2padded_cell.cc:18  :
277In file included from  | ../src/s2/s2padded_cell.h : 22 :
 In file included from  ../src/s2/r2rect.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 516 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     516  | c o n s tc ovnositd *c haabrs*l _anbuslll_anbolnen uvlall ueex)p;r
t      e| x                                                 ^t
);/usr/local/clang/include/absl/base/nullability.h
:      257| :                ^23
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'241
:22:   257 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/s2padded_cell.cc:18In file included from :
s2/s2min_distance_targets.ccIn file included from :../src/s2/s2padded_cell.h18::
22In file included from :
../src/s2/s2min_distance_targets.hIn file included from :../src/s2/r2rect.h29::
24In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/base/logging.h28::
21In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/log/check.h25::
37In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h36::
21In file included from :
../src/s2/base/casts.h:/usr/local/clang/include/absl/log/internal/check_op.h36::
517In file included from :../src/s2/base/logging.h13::21 :
In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :51721 | :
c/usr/local/clang/include/absl/log/internal/check_op.ho:n278s:t13 :c hwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
* ab  s278l | _cnounlslta bvloei dC*h eacbksslt_rncualsleacbmlpet roupeeIrmaptlo(r
<      <| (            ^s
td/usr/local/clang/include/absl/base/nullability.h:::257o:s23t:r enote: aexpanded from macro 'absl_nullable'm
&,   257s | t#dd:e:fniunlel patbrs_lt_)n;u
l      l| a            ^b
le/usr/local/clang/include/absl/base/nullability.h :_257N:u23l:l anote: bexpanded from macro 'absl_nullable'l
e
        257|  |                       ^#
definIn file included from es2/s2padded_cell.cc :a18b:
sIn file included from l../src/s2/s2padded_cell.h_:n22u:
lIn file included from l../src/s2/r2rect.ha:b24l:
eIn file included from  ../src/s2/base/logging.h_:N21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                      ^:

/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defiIn file included from ns2/s2min_distance_targets.cce: 18a:
bIn file included from s../src/s2/s2min_distance_targets.hl:_29n:
uIn file included from l../src/s2/s1angle.hl:a28b:
lIn file included from e../src/s2/s2point.h :_25N:
uIn file included from l../src/s2/util/coding/coder.hl:a36b:
lIn file included from e../src/s2/base/casts.h
:      36| :
                      ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2padded_cell.cc::2118:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2padded_cell.h::29222::
13In file included from :../src/s2/r2rect.h :24warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
In file included from   /usr/local/clang/include/absl/log/check.h292: | 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
c/usr/local/clang/include/absl/log/internal/check_op.hh:a518r:*47 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_no  n518n | u l l   ocpoenrsatt ocrh<a<r(*s tadb:s:lb_ansuilcl_aobslter esa1m,< cchoanrs,t  Tcrhaairt*s >a&b,s
l      _| n            ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :s 2note: ,expanded from macro 'absl_nonnull'

      |                                                 ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _Nullable
      |                       ^In file included from 
s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:In file included from 29s2/s2padded_cell.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2padded_cell.h:
:In file included from 22../src/s2/s2point.h:
:In file included from 25../src/s2/r2rect.h:
:In file included from 24../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/base/logging.h:
:In file included from 21../src/s2/base/casts.h:
:In file included from 36/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/check.h:
:/usr/local/clang/include/absl/log/internal/check_op.h37::
519In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h17::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
293:49  :519  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  c  o293n | s t   c h a r *   a b s l _ n o n n u l l   e x p r t e x t ) ; 
        |                  ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la)b;s
l      _| n                                                ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnuIn file included from ls2/s2padded_cell.ccl: 18_:
NIn file included from o../src/s2/s2padded_cell.hn:n22u:
lIn file included from l../src/s2/r2rect.h
:      24| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]x
, x  ,520  | ccoonnsstt  cchhaarr**  aabbssll__nnounlnlualbll)e
       C| h                        ^e
cks/usr/local/clang/include/absl/base/nullability.ht:r241c:a22s:e cnote: mexpanded from macro 'absl_nonnull'p
fal  s241e | I#mdpelf(i
n      e|              ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 _  N257o | n#nduelfli
n      e|                       ^a
bsl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from In file included from ../src/s2/r2rect.hs2/s2point_compression.cc::2417:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2point_compression.h::2150:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/util/coding/coder.h::3736:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/base/casts.h::2136:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/base/logging.h521::2117:
:In file included from  /usr/local/clang/include/absl/log/check.h:warning: 37type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
521 | /usr/local/clang/include/absl/log/internal/check_op.h : 454 : 1c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 cha  r454* |  AaBbSsLl__LnOuGl_lIaNbTlEeR NsA1L,_ DcEoFnIsNtE _cMhAaKrE*_ CaHbEsClK__nOuPl_lSaTbRlIeN Gs_2E,X
T      E| R                ^N
(f/usr/local/clang/include/absl/base/nullability.hl:o257a:t23):; 
      note: | expanded from macro 'absl_nullable'^

  257/usr/local/clang/include/absl/log/internal/check_op.h | :#449d:e31f:i nnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
abs  l449_ | n u lelxatbelren  _tNeumlpllaabtlee 
c      o| n                      ^s
t charIn file included from *s2/s2padded_cell.cc :a18b:
sIn file included from l../src/s2/s2padded_cell.h_:n22o:
nIn file included from n../src/s2/r2rect.hu:24l:
lIn file included from  ../src/s2/base/logging.hM:a21k:
eIn file included from C/usr/local/clang/include/absl/log/check.hh:e37c:
kIn file included from O/usr/local/clang/include/absl/log/internal/check_impl.hp:S21t:
r/usr/local/clang/include/absl/log/internal/check_op.hi:n521g:(47 :   warning: \type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                               ^
  521 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22c:o nsnote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en ualblsalb_lneo nsn1u,l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullaIn file included from bs2/s2point_compression.ccl:e17 :
sIn file included from 2../src/s2/s2point_compression.h,:
50      :
| In file included from                                               ^../src/s2/util/coding/coder.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/casts.h257::3623:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/check.h:  37257:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e454 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ul/usr/local/clang/include/absl/log/internal/check_op.hl:a450b:le _Nullable
      | 25                      ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  In file included from 450s2/s2padded_cell.cc | : 18 :
 In file included from  ../src/s2/s2padded_cell.h : 22x:
,In file included from  ../src/s2/r2rect.hx:,24 :
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from c/usr/local/clang/include/absl/log/check.hh:a37r:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n522o:n17n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |                           ^522
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en oanbnsull_ln oenxnpurltle x_tN)o;n
n      u| l                ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2point_compression.cc :_17N:
oIn file included from n../src/s2/s2point_compression.hn:u50l:
lIn file included from 
../src/s2/util/coding/coder.h      :| 36                     ^:

In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonn const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | Aull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
BSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOGIn file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define a      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
bsl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char*In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr c absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
onst char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
able _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const charIn file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:22:
In file included from ../src/s2/r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2point_compression.cce: 17a:
bIn file included from s../src/s2/s2point_compression.hl:_50n:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from  ../src/s2/base/casts.h_:N36o:
nIn file included from n../src/s2/base/logging.hu:l21l:

In file included from       /usr/local/clang/include/absl/log/check.h| :                     ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##ImIn file included from ps2/s2padded_cell.ccl:(18 :
 In file included from  ../src/s2/s2padded_cell.h : 22 :
 In file included from  ../src/s2/r2rect.h : 24 :
 In file included from  ../src/s2/base/logging.h : 22 :
 In file included from  /usr/local/clang/include/absl/log/log.h :\209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                               ^:
20:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h::25763::
23:/usr/local/clang/include/absl/log/internal/vlog_config.h :157note: :expanded from macro 'absl_nullable'11
:   warning: 257type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#de  f157i | nVeL oagbSsilt_en*u lalbasbll_en u_lNlualbllaeb lSee
t      V| M                      ^o
duleListHIn file included from es2/s2point_compression.cca:d17F:
oIn file included from r../src/s2/s2point_compression.hT:e50s:
tIn file included from O../src/s2/util/coding/coder.hn:l36y:
(In file included from 
../src/s2/base/casts.h      :| 36          ^:

In file included from ../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/check.h::2337::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nullable'21
:
/usr/local/clang/include/absl/log/internal/check_op.h  :257507 | :#1d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e /usr/local/clang/include/absl/log/internal/check_op.ha:b498s:l35_:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
abl  e498  | _ N u l l a bilnet
       v| 1                      ^,
 int v2In file included from ,s2/s2padded_cell.cc :c18o:
nIn file included from s../src/s2/s2padded_cell.ht: 22c:
hIn file included from a../src/s2/r2rect.hr:*24 :
aIn file included from b../src/s2/base/logging.hs:l22_:
nIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h :e20x:
pIn file included from r/usr/local/clang/include/absl/log/absl_vlog_is_on.ht:e63x:
t/usr/local/clang/include/absl/log/internal/vlog_config.h): 158{: 15 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     158  |          V L o\g
S      i| t                                  ^e
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #vd)e;f
i      n| e              ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
e       | a                     ^b
sl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullabIn file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* le
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.hIn file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnu:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     cll
      |                      ^
onst char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:50:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessaIn file included from gs2/s2min_distance_targets.cce:F18a:
tIn file included from a../src/s2/s2min_distance_targets.hl:(29c:
oIn file included from n../src/s2/s1angle.hs:t28 :
cIn file included from h../src/s2/s2point.ha:r27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29f:
iIn file included from l/usr/local/clang/include/absl/strings/cord.he:,82 :
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht: 23l:
iIn file included from n/usr/local/clang/include/absl/crc/crc32c.he:)32 :
AIn file included from B/usr/local/clang/include/absl/strings/str_format.hS:L84_:
A/usr/local/clang/include/absl/strings/internal/str_format/bind.hT:T143R:I11B:U Twarning: E'enable_if' is a clang extension [-Wgcc-compat]_
COLD  ;143
 |        |                                ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22e:n anote: bexpanded from macro 'absl_nonnull'l
e_  i241f | (#sdterf_ifnoer maabts_li_nntoenrnnualll: :_ENnosnunruelClo
n      s| t                     ^e
xpr(s), "constexpr trap"),
      |           ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessag/usr/local/clang/include/absl/strings/internal/str_format/bind.he:F149a:t22a:l (warning: c'enable_if' is a clang extension [-Wgcc-compat]o
nst   c149h | a r *   a b s_l__antotnrniublult ef_i_l(e(,e nianbtl el_iinfe(,s
t      r| _                              ^f
or/usr/local/clang/include/absl/base/nullability.hm:a241t:_22i:n tnote: eexpanded from macro 'absl_nonnull'r
na  l241: | :#EdnesfuirneeC oanbsstle_xnporn(nsu)l,l
       _| N                     ^o
nnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:/usr/local/clang/include/absl/strings/internal/str_format/bind.h31::158 :22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: 'enable_if' is a clang extension [-Wgcc-compat]
  427 |     158  |              _ _ a t t r i b uctoen_s_t( (cehnaarb*l ea_bisfl(_VnaolninduFlolr mfaatiIlmuprle<_Amrsggs). .A.B>S(Ls_)A,T T"RbIaBdU TfEo_rCmOaLtD ;t
r      a| p                              ^"
))/usr/local/clang/include/absl/base/nullability.h):
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Non/usr/local/clang/include/absl/strings/internal/str_format/bind.hn:u162l:l22
:       | warning:                      ^'enable_if' is a clang extension [-Wgcc-compat]

  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format traIn file included from ps2/s2point_region.cc":)18):
)In file included from 
../src/s2/s2point_region.h      :| 23                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23In file included from :
s2/s2min_distance_targets.ccIn file included from :../src/s2/base/logging.h18::
21In file included from :
../src/s2/s2min_distance_targets.hIn file included from :/usr/local/clang/include/absl/log/check.h29::
37In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h28::
21In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/log/internal/check_op.h27::
428In file included from :../src/s2/s2coder.h44::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 428/usr/local/clang/include/absl/strings/cord.h | :A82B:
SIn file included from L/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:A23T:
TIn file included from R/usr/local/clang/include/absl/crc/crc32c.hI:B32U:
T/usr/local/clang/include/absl/strings/str_format.hE:_380R:E43T:U Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
_NON  N380U | LsLt dc:o:nssttr icnhga&r *S tarbAsplp_ennodnFnourlmla tM(asktedC:h:esctkrOipnSgt*r ianbgs(l
_      n| o                                           ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241d:s22t:, 
      note: | expanded from macro 'absl_nonnull'                                          ^

  241/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  a_bNsoln_nnuolnln
u      l| l                     ^ 
_Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2point_region.cc23::
18In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2point_region.h67::
23In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h82::
37In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h23::
21In file included from :
/usr/local/clang/include/absl/crc/crc32c.h:/usr/local/clang/include/absl/log/internal/check_op.h32::
432:/usr/local/clang/include/absl/strings/str_format.h13::440 :24warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | co  n440s | ti ncth FaPrr*i natbFs(ls_tndo:n:nFuIlLlE *M aakbesClh_encoknOnpuSltlr ionugt(pTu1t ,v 1c,o nTs2t  vF2o,r
m      a| t            ^S
pe/usr/local/clang/include/absl/base/nullability.hc:<241A:r22g:s .note: .expanded from macro 'absl_nonnull'.
>&   241f | o#rdmeafti,n
e       | a                       ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnuIn file included from ls2/s2point_region.ccl: 18_:
NIn file included from o../src/s2/s2point_region.hn:n23u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            In file included from cs2/s2min_distance_targets.cco:n18s:
tIn file included from  ../src/s2/s2min_distance_targets.hc:h29a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from e/usr/local/clang/include/absl/status/status.hx:p67r:
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:t29):
 In file included from {/usr/local/clang/include/absl/strings/cord.h
:      82| :
                                                       ^In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/crc/crc32c.h::2232::
 /usr/local/clang/include/absl/strings/str_format.hnote: :expanded from macro 'absl_nonnull'469
:20:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n469e |  ianbts lS_NnPorninnutlFl( c_hNaorn*n ualbls
l      _| n                     ^o
nnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2min_distance_targets.cc::45118::
1In file included from :../src/s2/s2min_distance_targets.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
In file included from   ../src/s2/s2point.h451: | 27A:
BIn file included from S../src/s2/s2coder.hL:_23L:
OIn file included from G/usr/local/clang/include/absl/status/status.h_:I67N:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hR:N29A:
LIn file included from _/usr/local/clang/include/absl/strings/cord.hD:E82F:
IIn file included from N/usr/local/clang/include/absl/crc/internal/crc_cord_state.hE:_23M:
AIn file included from K/usr/local/clang/include/absl/crc/crc32c.hE:_32C:
H/usr/local/clang/include/absl/strings/str_format.hE:C503K:_20O:P _warning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIN  G503_ | E X TFEoRrNm(abtoRoalw)S;i
n      k| (^T
* a/usr/local/clang/include/absl/log/internal/check_op.hb:s449l:_31n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
ll   r449a | w )  e x/t/e rNnO LtIeNmTp
l      a| t                   ^e
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sMla_kneoCnhneuclklO p_SNtorninnugl(l 
        | \                     ^

      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const charIn file included from *s2/s2min_distance_targets.cc :a18b:
sIn file included from l../src/s2/s2min_distance_targets.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from M../src/s2/s2point.ha:k27e:
CIn file included from h../src/s2/s2coder.he:c23k:
OIn file included from p/usr/local/clang/include/absl/status/status.hS:t67r:
iIn file included from /usr/local/clang/include/absl/status/internal/status_internal.hn:g29(:
 In file included from  /usr/local/clang/include/absl/strings/cord.h :\82
:
      In file included from | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h                              ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/crc/crc32c.h::24132::
22: /usr/local/clang/include/absl/strings/str_format.h:note: 860expanded from macro 'absl_nonnull':
43:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n860e |   a bfsrli_ennodn nvuolild  _ANbosnlnFuolrlm
a      t| F                     ^l
ush(FormIn file included from as2/s2point_region.cct:S18i:
nIn file included from k../src/s2/s2point_region.h*: 23a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hs:i21n:
k/usr/local/clang/include/absl/log/internal/check_op.h,:
455      :| 1                                          ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241/usr/local/clang/include/absl/log/internal/check_op.h::22450:: 25:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  241 |   #450 | d e f i n e  xa,b sxl,_ ncoonnnsutl lc h_aNro*n naublsll
_      n| o                     ^n
null)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2min_distance_targets.ccl: 18_:
NIn file included from o../src/s2/s2min_distance_targets.hn:n29u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.hs2/s2point_region.cc::86718::
60In file included from :../src/s2/s2point_region.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h  :86737 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.he:x21p:
l/usr/local/clang/include/absl/log/internal/check_op.hi:c456i:t1 :F owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
atS  i456n | kA(BsStLr__LfOoGr_mIaNtT_EiRnNtAeLr_nDaElF:I:NFEo_rMmAaKtES_iCnHkEICmKp_lO*P _aSbTsRlI_NnGo_nEnXuTlElR Ns()c
h      a| r                                                           ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :^241
:22:/usr/local/clang/include/absl/log/internal/check_op.h :449note: :expanded from macro 'absl_nonnull'31
:   note: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
#de  f449i | n e  eaxbtselr_nn otnenmupllla t_eN ocnonnusltl 
c      h| a                     ^r
* absl_nonnull MakeCheckOIn file included from ps2/s2min_distance_targets.ccS:t18r:
iIn file included from n../src/s2/s2min_distance_targets.hg:(29 :
 In file included from  ../src/s2/s1angle.h\:
28      :
| In file included from                               ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e82f:
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.he: 23a:
bIn file included from s/usr/local/clang/include/absl/crc/crc32c.hl:_32n:
o/usr/local/clang/include/absl/strings/str_format.hn:n869u:l40l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l869l | 
        | s                     ^t
r_forIn file included from ms2/s2point_region.cca:t18_:
iIn file included from n../src/s2/s2point_region.ht:e23r:
nIn file included from a../src/s2/base/logging.hl::21::
FIn file included from o/usr/local/clang/include/absl/log/check.hr:m37a:
tIn file included from S/usr/local/clang/include/absl/log/internal/check_impl.hi:n21k:
I/usr/local/clang/include/absl/log/internal/check_op.hm:p456l:*1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_/usr/local/clang/include/absl/log/internal/check_op.hn:o450n:n25u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
in  k450_ | ; 
        |                                         ^ 
 x/usr/local/clang/include/absl/base/nullability.h,: 241x:,22 :c onote: nexpanded from macro 'absl_nonnull's
t   c241h | a#rd*e faibnsel _anbosnln_unloln)n
u      l| l                        ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h575: warning21s:
 generated/usr/local/clang/include/absl/log/internal/check_op.h.
:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2predicates.cc -o s2/s2predicates.o
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:23:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   voiIn file included from ds2/s2padded_cell.cc :T18r:
aIn file included from n../src/s2/s2padded_cell.hs:(23M:
uIn file included from H../src/s2/s2cell_id.ho:w32 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:n89u:
lIn file included from l/usr/local/clang/include/absl/numeric/int128.h :h41o:
w)/usr/local/clang/include/absl/types/compare.h;:  /78/: 22u:s ewarning: d'enable_if' is a clang extension [-Wgcc-compat] 
for C   o78n | d V a r - > M_u_taetxt rtirbauntsef_e_r(
(      e| n                   ^a
bl/usr/local/clang/include/absl/base/nullability.he:_241i:f22(:n  note: =expanded from macro 'absl_nonnull'=
 0  ,241  | "#Odnelfyi nlei taebrsall_ n`o0n`n uilsl  a_lNloonwneudl.l"
)      )| )                     ^ 
{}
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mIn file included from us2/s2point_region.cc): 18A:
BIn file included from S../src/s2/s2point_region.hL:_23E:
XIn file included from C../src/s2/base/logging.hL:U22S:
IIn file included from V/usr/local/clang/include/absl/log/log.hE:_209L:
OIn file included from C/usr/local/clang/include/absl/log/internal/log_impl.hK:_20F:
UIn file included from N/usr/local/clang/include/absl/log/absl_vlog_is_on.hC:T63I:
ON/usr/local/clang/include/absl/log/internal/vlog_config.h(:m49u:)37
:       | warning:                             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241   :4922 | : inote: nexpanded from macro 'absl_nonnull't
 R  e241g | i#sdteefriAnned Ianbistli_anloinzneu(lVlL o_gNSointneu*l la
b      s| l                     ^_
nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2min_distance_targets.ccs:l18_:
nIn file included from o../src/s2/s2min_distance_targets.hn:n29u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicIn file included from is2/s2point_region.cct: 18M:
uIn file included from t../src/s2/s2point_region.he:x23L:
oIn file included from c../src/s2/base/logging.hk:(22M:
uIn file included from t/usr/local/clang/include/absl/log/log.he:x209&:
 In file included from m/usr/local/clang/include/absl/log/internal/log_impl.hu: 20A:
BIn file included from S/usr/local/clang/include/absl/log/absl_vlog_is_on.hL:_63I:
N/usr/local/clang/include/absl/log/internal/vlog_config.hT:E63R:N43A:L _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
TRI   B63U | T E _eCxApPlTiUcRiEtD _cBoYn(sttheixsp)r, 
V      L| o                                                                   ^~~~g
Site(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/synchronization/mutex.h:: 649:note: 29expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f649i | n e  eaxbpslli_cniotn nMuultle x_LNoocnkn(uMlult
e      x| *                     ^ 
absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2point_region.cc :_18N:
oIn file included from n../src/s2/s2point_region.hn:u23l:
lIn file included from 
../src/s2/base/logging.h      :| 22                     ^:

In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2point_region.ccu:l18l:
 In file included from _../src/s2/s2point_region.hN:o23n:
nIn file included from u../src/s2/base/logging.hl:l22
:
      In file included from | /usr/local/clang/include/absl/log/log.h                     ^:
209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_In file included from ns2/s2min_distance_targets.cco:n18n:
uIn file included from l../src/s2/s2min_distance_targets.hl: 29c:
oIn file included from n../src/s2/s1angle.hs:t28 :
fIn file included from i../src/s2/s2point.hl:e27_:
;In file included from 
../src/s2/s2coder.h      :| 23              ^:

In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e681f:i74n:e  warning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
sl_no  n681n | u l le x_pNloincniutl lR
e      a| d                     ^e
rMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2point_region.cc/usr/local/clang/include/absl/synchronization/mutex.h::18851:
:In file included from 45../src/s2/s2point_region.h:: 23:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:22:
In file included from   /usr/local/clang/include/absl/log/log.h851: | 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
bIn file included from o/usr/local/clang/include/absl/log/absl_vlog_is_on.ho:l63 :
(a/usr/local/clang/include/absl/log/internal/vlog_config.hb:s133l::37::t ywarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
_ide  n133t | iitnyt< TR>e:g:itsytpeer:A:n*d Ianbistli_anloinzneu(lVlL omgeStihtoed*) (a)b
s      l| _                                            ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :v )note: ;expanded from macro 'absl_nonnull'

      |                                       ^241
 | #de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit CIn file included from os2/s2point_region.ccn:d18i:
tIn file included from i../src/s2/s2point_region.ho:n23(:
cIn file included from o../src/s2/base/logging.hn:s22t:
 In file included from b/usr/local/clang/include/absl/log/log.ho:o209l:
*In file included from  /usr/local/clang/include/absl/log/internal/log_impl.ha:b20s:
lIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:o63n:
n/usr/local/clang/include/absl/log/internal/vlog_config.hu:l157l: 11c:o nwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
;
      |                                    ^157
 | V/usr/local/clang/include/absl/base/nullability.hL:o241g:S22i:t enote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea bSselt_VnMoondnuullelL i_sNtoHnenaudlFlo
r      T| e                     ^s
tOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
In file included from       s2/s2min_distance_targets.cc| :                      ^18
:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2point_region.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2point_region.h:
:In file included from 23../src/s2/s2coder.h:
:In file included from 23../src/s2/base/logging.h:
:In file included from 22/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/log.h:
:In file included from 209/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 20/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/log/absl_vlog_is_on.h:
:In file included from 63/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:/usr/local/clang/include/absl/log/internal/vlog_config.h31::
158:/usr/local/clang/include/absl/synchronization/mutex.h15::886 :31warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
158 |      886  | V L oegxSpiltiec*i ta bCsoln_dniutliloanb(lceo nvs)t; 
T      *|                ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 o  b257j | )#
d      e| f                              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# d_eNfuilnlea balbes
l      _| n                      ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:30:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:30:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.hs2/s2point_compression.cc::3917::
45In file included from :../src/s2/s2point_compression.h :52warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from    ../src/s2/s2coder.h39: | 23:
iIn file included from n/usr/local/clang/include/absl/status/status.hl:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hu:i29n:
tIn file included from 1/usr/local/clang/include/absl/strings/cord.h6:_82t:
 In file included from U/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:a23l:
iIn file included from g/usr/local/clang/include/absl/crc/crc32c.hn:e32d:
Lo/usr/local/clang/include/absl/strings/str_format.ha:d1151:652(:c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t voi  d115* |   a b s l _ ncoonnnsutl ls tpr)_ f{o
r      m| a                                            ^t
_int/usr/local/clang/include/absl/base/nullability.he:r241n:a22l:: :note: Pexpanded from macro 'absl_nonnull'a
rs  e241d | F#odremfaitnBea saeb*s la_bnsoln_nnuolnln u_lNlo npncu)l
l      
|                                                          ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2point_compression.ccb:s17l:
_In file included from n../src/s2/s2point_compression.ho:n52n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnuIn file included from ls2/s2point_region.ccl: 18p:
)In file included from  ../src/s2/s2point_region.h:: 25p:
_In file included from (../src/s2/s1angle.hp:)28 :
{}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull pIn file included from ,s2/s2min_distance_targets.cc :u18i:
nIn file included from t../src/s2/s2min_distance_targets.h6:433_:
tIn file included from  ../src/s2/s2cell_index.hv:)26 :
{In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h      :| 45                                   ^:

/usr/local/clang/include/absl/container/internal/raw_hash_set.h/usr/local/clang/include/absl/base/nullability.h::2663241::5322::  warning: note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]expanded from macro 'absl_nonnull'

  241 | #d e2663f | i n e   a b sTl&_&n ovnanluulel  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           /usr/local/clang/include/absl/container/internal/raw_hash_set.he:n2692a:b58l:e _warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
(str_ f2692o | r m a t _ i nctoenrsnta lT:&: Evnasluuree CAoBnSsLt_eIxNpTrE(RfNoArLm_aAtT)T,R
I      B| U          ^T
E_CAPTUR/usr/local/clang/include/absl/strings/internal/str_format/parser.hE:D229_:B11Y:( twarning: h'enable_if' is a clang extension [-Wgcc-compat]i
s))  
229       | |                                                           ^~~~ 
        enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWorIn file included from ds2/s2pointutil.cc(:
18      :
| In file included from                                 ^../src/s2/s2pointutil.h
:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h241::2822:
:In file included from  ../src/s2/s2point.h:note: 24expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/hash/hash.h  :24189 | :
#In file included from d/usr/local/clang/include/absl/hash/internal/hash.he:f89i:
nIn file included from e/usr/local/clang/include/absl/numeric/int128.h :a41b:
sl/usr/local/clang/include/absl/types/compare.h_:n78o:n22n:u lwarning: l'enable_if' is a clang extension [-Wgcc-compat] 
_Nonn   u78l | l 
        |                       ^ 
 __attribuIn file included from ts2/s2min_distance_targets.cce:_18_:
(In file included from (../src/s2/s2min_distance_targets.he:n33a:
bIn file included from l../src/s2/s2cell_index.he:_32i:
fIn file included from (../src/s2/s2cell_union.hn: 29=:
=In file included from  /usr/local/clang/include/absl/flags/flag.h0:,42 :
"In file included from O/usr/local/clang/include/absl/flags/internal/flag.hn:l30y:
 /usr/local/clang/include/absl/base/call_once.hl:i97t:e18r:a lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]`
0`    97i | s   a l l o woendc.e"_)f)l)a g{*} 
a      b| s                     ^l
_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:18:
In file included from ../src/s2/s2min_distance_targets.h:33:
In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2point_compression.ccu:l17l:
 In file included from _../src/s2/s2point_compression.hN:o52n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknoIn file included from ws2/s2polygon.ccn:)18,:

In file included from       ../src/s2/s2polygon.h| :                   ^29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/base/nullability.h::43241:
:In file included from 22/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57  :
241In file included from  | /usr/local/clang/include/absl/hash/hash.h#:d89e:
fIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hn:e79 :
aIn file included from b/usr/local/clang/include/absl/base/internal/endian.hs:l26_:
n/usr/local/clang/include/absl/base/internal/unaligned_access.ho:n45n:u45l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn   u45l | li
n      l| i                     ^n
e uintIn file included from 3s2/s2point_compression.cc2:_17t:
 In file included from U../src/s2/s2point_compression.hn:a52l:
iIn file included from g../src/s2/s1angle.hn:e28d:
LIn file included from o../src/s2/s2point.ha:d273:
2In file included from (../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h :v67o:
iIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :p801): 45{:
       warning: | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]                                            ^

  /usr/local/clang/include/absl/base/nullability.h801: | 241 : 22C:o nnote: dexpanded from macro 'absl_nonnull'i
ti  o241n | (#bdoeofli n(e* aabbssll__nnoonnnnuullll  f_uNnocn)n(uvloli
d      *|                       ^a
bsl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _NuIn file included from ls2/s2polygon.ccl:_18u:
nIn file included from s../src/s2/s2polygon.hp:e29c:
iIn file included from f/usr/local/clang/include/absl/container/flat_hash_map.hi:e43d:

In file included from       /usr/local/clang/include/absl/container/hash_container_defaults.h|                                  ^
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from In file included from s2/s2point_compression.cc/usr/local/clang/include/absl/base/internal/endian.h::1726:
:
In file included from ../src/s2/s2point_compression.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::5251:
:In file included from 45../src/s2/s1angle.h:: 28:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h   :5123 | :
iIn file included from n/usr/local/clang/include/absl/status/status.hl:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hu:i29n:
tIn file included from 6/usr/local/clang/include/absl/strings/cord.h4:_94t:
 In file included from U/usr/local/clang/include/absl/strings/internal/cordz_info.hn:a31l:
i/usr/local/clang/include/absl/synchronization/mutex.hg:n802e:d19L:o awarning: dtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]6
4(c  o802n | s t   v o i d *   a b s lv_oniodn*n ualbls lp_)n u{l
l      a| b                                            ^i
li/usr/local/clang/include/absl/base/nullability.ht:y241_:u22n:k nnote: oexpanded from macro 'absl_nonnull'w
n   a241r | g#)d;e
f      i| n                  ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s289l:_34n:o nnote: nexpanded from macro 'absl_nullability_unknown'u
ll   289_ | N#odnenfuilnle
       a| b                     ^s
l_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2polygon.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/status/status.h::2967:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/status/internal/status_internal.h::4329:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/strings/cord.h::1994:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::5731:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/hash/hash.h::81489::
20In file included from :/usr/local/clang/include/absl/hash/internal/hash.h :warning: 79type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
  /usr/local/clang/include/absl/base/internal/unaligned_access.h814: | 57 : 36C:o nwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
tio   n57( | bionolli n(e* avbosild_ nUonnanluilgln efduSntco)r(eT1*6 (avbosild_*n ualblsalb_inlointnyu_lulnk npo,w nu)i,n
t      1| 6                   ^_
t /usr/local/clang/include/absl/base/nullability.hv:)241 :{22
:       | note:                                    ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnIn file included from us2/s2point_compression.ccl:l17
:
      In file included from | ../src/s2/s2point_compression.h                     ^:
52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (In file included from *s2/s2polygon.cca:b18s:
lIn file included from _../src/s2/s2polygon.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l43 :
fIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hn:c19):
(In file included from T/usr/local/clang/include/absl/container/internal/hash_function_defaults.h*: 57a:
bIn file included from s/usr/local/clang/include/absl/hash/hash.hl:_89n:
uIn file included from l/usr/local/clang/include/absl/hash/internal/hash.hl:a79b:
iIn file included from l/usr/local/clang/include/absl/base/internal/endian.hi:t26y:
_/usr/local/clang/include/absl/base/internal/unaligned_access.hu:n61k:n36o:w nwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                                          ^   
61 | /usr/local/clang/include/absl/base/nullability.hi:n289l:i34n:e  note: vexpanded from macro 'absl_nullability_unknown'o
id   U289n | a#ldiegfniendeS taobrsel3_2n(uvloliadb*i laibtsyl__unnoknnnouwlnl  _pN,u luli_nutn3s2p_etc ivf)i e{d

            | |                                    ^                                 ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2point_compression.cce:f17i:
nIn file included from e../src/s2/s2point_compression.h :a52b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknIn file included from os2/s2polygon.ccw:n18 :
aIn file included from r../src/s2/s2polygon.hg:)29;:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h| :               ^43
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/hash_container_defaults.h::28919::
34In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :note: 57expanded from macro 'absl_nullability_unknown':

In file included from /usr/local/clang/include/absl/hash/hash.h:  89289:
 | In file included from #/usr/local/clang/include/absl/hash/internal/hash.hd:e79f:
iIn file included from n/usr/local/clang/include/absl/base/internal/endian.he: 26a:
b/usr/local/clang/include/absl/base/internal/unaligned_access.hs:l65_:n36u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ilit   y65_ | uinnklnionwen  v_oNiudl lU_nuanlsipgenceidfSiteodr
e      6| 4                                 ^(
void* absl_nonnull p, uiIn file included from ns2/s2point_compression.cct:6174:
_In file included from t../src/s2/s2point_compression.h :v52):
 In file included from {../src/s2/s1angle.h
:      28| :
                                   ^In file included from ../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n830o:n14n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_No  n830n | u l l 
        |                       ^b
ool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from des2/s2min_distance_targets.ccf:i18n:
eIn file included from  ../src/s2/s2min_distance_targets.ha:b33s:
lIn file included from _../src/s2/s2cell_index.hn:o32n:
nIn file included from u../src/s2/s2cell_union.hl:l29 :
_N/usr/local/clang/include/absl/flags/flag.ho:n110n:u29l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  110 | void SetFlag(absl::In file included from Fs2/s2point_compression.ccl:a17g:
<In file included from T../src/s2/s2point_compression.h>:*52 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :f23l:
aIn file included from g/usr/local/clang/include/absl/status/status.h,: 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
TIn file included from &/usr/local/clang/include/absl/strings/cord.h :v94):
 In file included from {/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                            ^/usr/local/clang/include/absl/synchronization/mutex.h
:855:34:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'855
 |     241e | x#pdleifciinte  Caobnsdli_tnioonnn(ucloln s_tN obnonoull*l 
a      b| s                     ^l
_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2min_distance_targets.ccn:u18l:
lIn file included from 
../src/s2/s2min_distance_targets.h      :| 33                     ^:

In file included from ../src/s2/s2cell_index.h:32:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_noIn file included from ns2/s2point_compression.ccn:u17l:
lIn file included from  ../src/s2/s2point_compression.hf:l52a:
gIn file included from ,../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27V:
&In file included from  ../src/s2/s2coder.hv:)23 :
{In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                            ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 886#:d31e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s886l | _ n oenxnpullilc i_tN oCnonnudlilt
i      o| n                     ^(
const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2polygon.cc
:18:
In file included from   ../src/s2/s2polygon.h922: | 29 :
 In file included from s/usr/local/clang/include/absl/container/flat_hash_map.ht:a43t:
iIn file included from c/usr/local/clang/include/absl/container/hash_container_defaults.h :b19o:
oIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :G57u:
aIn file included from r/usr/local/clang/include/absl/hash/hash.ha:n89t:
eIn file included from e/usr/local/clang/include/absl/hash/internal/hash.hd:E79q:
ua/usr/local/clang/include/absl/base/internal/endian.hl:(160c:o36n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ondi  t160i | oinn*l ianbes lu_innutl1l6a_btl eL oaa,d
1      6| (                                               ^c
on/usr/local/clang/include/absl/base/nullability.hs:t257 :v23o:i dnote: *expanded from macro 'absl_nullable' 
ab  s257l | _#ndoenfniunlel  apb)s l{_
n      u| l                                   ^l
abl/usr/local/clang/include/absl/base/nullability.he: 241_:N22u:l lnote: aexpanded from macro 'absl_nonnull'b
le  
241       | | #                      ^d
efine abslIn file included from _s2/s2point_compression.ccn:o17n:
nIn file included from u../src/s2/s2point_compression.hl:l52 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                           In file included from  s2/s2polygon.cc : 18 :
cIn file included from o../src/s2/s2polygon.hn:s29t:
 In file included from C/usr/local/clang/include/absl/container/flat_hash_map.ho:n43d:
iIn file included from t/usr/local/clang/include/absl/container/hash_container_defaults.hi:o19n:
*In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b57s:
lIn file included from _/usr/local/clang/include/absl/hash/hash.hn:u89l:
lIn file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:l79e:
 /usr/local/clang/include/absl/base/internal/endian.hb:)164;:
27      :|                                                 ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:   164note:  | expanded from macro 'absl_nullable'i
nl  i257n | e# dveofiidn eS taobrsel1_6n(uvloliadb*l ea b_sNlu_lnloanbnluel
l       | p                      ^,
 uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2point_compression.cco:n17n:
uIn file included from l../src/s2/s2point_compression.hl: 52_:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(cIn file included from os2/s2polygon.ccn:s18t:
 In file included from C../src/s2/s2polygon.ho:n29d:
iIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.hi:o43n:
*In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o57n:
nIn file included from u/usr/local/clang/include/absl/hash/hash.hl:l89):
 In file included from =/usr/local/clang/include/absl/hash/internal/hash.h :n79u:
l/usr/local/clang/include/absl/base/internal/endian.hl:p168t:r36;:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]         ^

/usr/local/clang/include/absl/base/nullability.h  :168257 | :i23n:l inote: nexpanded from macro 'absl_nullable'e
 u  i257n | t#3d2e_fti nLeo aadb3s2l(_cnounlslta bvloei d_*N ualblsalb_lneo
n      n| u                      ^l
l p) {In file included from 
s2/s2point_compression.cc      :| 17                                   ^:

In file included from ../src/s2/s2point_compression.h:/usr/local/clang/include/absl/base/nullability.h52::
241In file included from :../src/s2/s1angle.h22::28 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2point.h
:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n948u:l48l:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonIn file included from ns2/s2polygon.ccu:l18l:
)In file included from  ../src/s2/s2polygon.h=: 29n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:p43t:
rIn file included from ;/usr/local/clang/include/absl/container/hash_container_defaults.h
:      19| :
                                               ^In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/base/nullability.h57::
241In file included from :/usr/local/clang/include/absl/hash/hash.h22::89 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/hash/internal/hash.h
:79  :
241/usr/local/clang/include/absl/base/internal/endian.h | :#172d:e27f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _172n | oinnnluilnle  _vNooindn uSltlo
r      e| 3                     ^2
(void* absl_nonnull In file included from ps2/s2point_compression.cc,: 17u:
iIn file included from n../src/s2/s2point_compression.ht:3522:
_In file included from t../src/s2/s1angle.h :v28):
 In file included from {../src/s2/s2point.h
:      27| :
                          ^In file included from 
../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull':
29:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b951s:l9_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ul  l951  | _ N ovnoniudl*l 
a      b| s                     ^l
_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nulIn file included from ls2/s2polygon.cca:b18l:
eIn file included from  ../src/s2/s2polygon.h_:N29u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.ha:b43l:
eIn file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h      :| 19                      ^:

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.hs2/s2point_compression.cc::17617::
36In file included from :../src/s2/s2point_compression.h :52warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
  In file included from 176../src/s2/s2point.h | :i27n:
lIn file included from i../src/s2/s2coder.hn:e23 :
uIn file included from i/usr/local/clang/include/absl/status/status.hn:t676:
4In file included from _/usr/local/clang/include/absl/status/internal/status_internal.ht: 29L:
oIn file included from a/usr/local/clang/include/absl/strings/cord.hd:6944:
(In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31s:
t/usr/local/clang/include/absl/synchronization/mutex.h :v954o:i52d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n954o | n n usltla tpi)c  {b
o      o| l                                   ^ 
Ca/usr/local/clang/include/absl/base/nullability.hl:l241V:o22i:d Pnote: texpanded from macro 'absl_nonnull'r
Fu  n241c | t#idoenf(icnoen satb sClo_nndointniuolnl*  _aNbosnln_unloln
n      u| l                     ^l
 c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2polygon.cc
:      18| :
                     ^In file included from 
../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89In file included from :
s2/s2point_compression.ccIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h17::
79In file included from :
../src/s2/s2point_compression.h/usr/local/clang/include/absl/base/internal/endian.h::52180:
:In file included from 27../src/s2/s1angle.h:: 28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
180In file included from  | /usr/local/clang/include/absl/strings/cord.hi:n94l:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31v:
o/usr/local/clang/include/absl/synchronization/mutex.hi:d956 :S52t:o rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]6
4(vo  i956d | *   asbtsalt_inco nbnouolll  Cpa,s tuAinndtC6a4l_ltF uvn)c t{i
o      n| (                          ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :C22o:n dnote: iexpanded from macro 'absl_nonnull't
io  n241* |  #adbesfli_nneo nanbuslll_ nco)n;n
u      l| l                                                   ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2polygon.cc :a18b:
sIn file included from l../src/s2/s2polygon.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hu:l43l:
 In file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hN:o19n:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l57
:
      In file included from | /usr/local/clang/include/absl/hash/hash.h                     ^:
89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inlineIn file included from  s2/s2point_compression.ccu:i17n:
tIn file included from 1../src/s2/s2point_compression.h6:_52t:
 In file included from L../src/s2/s1angle.ho:a28d:
1In file included from 6../src/s2/s2point.h(:c27o:
nIn file included from s../src/s2/s2coder.ht: 23v:
oIn file included from i/usr/local/clang/include/absl/status/status.hd:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :p31):
 /usr/local/clang/include/absl/synchronization/mutex.h{:
1069      :| 32                                   ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:  note: 1069expanded from macro 'absl_nonnull' | 
    b241o | o#ld eWfaiinteW iatbhsDle_andolninnuel(lM u_tNeoxn*n ualbls
l      _| n                     ^o
nnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2polygon.ccn:o18n:
nIn file included from u../src/s2/s2polygon.hl:l29 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_map.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl:
19      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inlIn file included from is2/s2point_compression.ccn:e17 :
vIn file included from o../src/s2/s2point_compression.hi:d52 :
SIn file included from t../src/s2/s1angle.ho:r28e:
1In file included from 6../src/s2/s2point.h(:v27o:
iIn file included from d../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hp:,94 :
uIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:t311:
6/usr/local/clang/include/absl/synchronization/mutex.h_:t1088 :v35):  {warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                           ^
 1088/usr/local/clang/include/absl/base/nullability.h | : 241 :v22o:i dnote:  expanded from macro 'absl_nonnull'E
na  b241l | e#DdeebfuignLeo ga(bcsoln_snto ncnhualrl*  _aNbosnln_unlull
l      a| b                     ^l
e name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^In file included from 
s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.hs2/s2point_compression.cc::7917:
:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :../src/s2/s2point_compression.h258::5236:
:In file included from  ../src/s2/s1angle.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:  27258:
 | In file included from i../src/s2/s2coder.hn:l23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :u67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h3:229_:
tIn file included from  /usr/local/clang/include/absl/strings/cord.hL:o94a:
dIn file included from 3/usr/local/clang/include/absl/strings/internal/cordz_info.h2:(31c:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s1091t: 26v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab s1091l | _ n obnonoull lW api)t C{o
m      m| o                                   ^n
(M/usr/local/clang/include/absl/base/nullability.hu:t241e:x22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nmeu taebxs,l
_      n| o                         ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from In file included from ../src/s2/s2polygon.hs2/s2point_compression.cc::2917:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2point_compression.h::4352:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h../src/s2/s1angle.h::1928:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/s2point.h::5727:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/s2coder.h::8923:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/status/status.h::7967:
:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h262::2927:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:warning: 94type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
262 | in l1093i | n e  vvooiidd  RSetmoorvee3(2b(avsoei_di*n taebrsnla_ln:o:nPneurlTlh rpe,a duSiynntc3h2*_ ta bvs)l _{n
o      n| n                          ^u
ll/usr/local/clang/include/absl/base/nullability.h :s241):;22
:       | note:                                              ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2polygon.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2polygon.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 43/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/hash_container_defaults.h:
:In file included from 19/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 57/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/hash/hash.h:
:In file included from 89/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/hash/internal/hash.h:
:79/usr/local/clang/include/absl/synchronization/mutex.h:
:/usr/local/clang/include/absl/base/internal/endian.h1109::27034::27 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1109   | 270  |  ienxlpilniec ivto iMdu tSetxoLroec6k4M(avyobied(*M uatbesxl*_ naobnsnlu_lnlu lpl,a bulien tm6u4)_
t       | v                                 ^)
 {
/usr/local/clang/include/absl/base/nullability.h      :| 257                          ^:
23: /usr/local/clang/include/absl/base/nullability.h:note: 241expanded from macro 'absl_nullable':
22:   note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbuslll_anbolnen u_lNlu l_lNaobnlneu
l      l| 
                      ^      
|                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* aIn file included from bs2/s2padded_cell.ccs:l18_:
nIn file included from o../src/s2/s2padded_cell.hn:n23u:
lIn file included from l../src/s2/s2cell_id.h :m43u:
)In file included from 
../src/s2/s1angle.h      :| 28                                      ^:

In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i86n:
e /usr/local/clang/include/absl/strings/cord_analysis.ha:b32s:l47_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull    _32N | osninzuel_lt
       G| e                     ^t
EstimatedMemoryUsage(const CordRep* abIn file included from ss2/s2point_compression.ccl:_17n:
oIn file included from n../src/s2/s2point_compression.hn:u52l:
lIn file included from  ../src/s2/s1angle.hr:e28p:
)In file included from ;../src/s2/s2point.h
:      27| :
                                              ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1158e: 53a:b swarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
nonn u1158l | l   _ N o n nMuultle
x      &|                       ^m
u ABSL_INTERNAL_ATTRIBUTE_CIn file included from As2/s2padded_cell.ccP:T18U:
RIn file included from E../src/s2/s2padded_cell.hD:_23B:
YIn file included from (../src/s2/s2cell_id.ht:h43i:
sIn file included from )../src/s2/s1angle.h,:
28      :
| In file included from                                                     ^~~~../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size/usr/local/clang/include/absl/synchronization/mutex.h_:t1166 :G39e:t Mwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ePre c1166i | s e MeexmpolriycUista gRee(lceoanssatb lCeoMrudtReexpL*o cakb(sMlu_tneoxn*n ualbls lr_enpo)n;n
u      l| l                                                ^ 
mu/usr/local/clang/include/absl/base/nullability.h,: 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'C
on  d241i | t#idoenf&i nceo nadb)s
l      _| n                                      ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _NIn file included from os2/s2padded_cell.ccn:n18u:
lIn file included from l../src/s2/s2padded_cell.h
:      23| :
                     ^In file included from 
../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatIn file included from es2/s2point_compression.ccd:F17a:
iIn file included from r../src/s2/s2point_compression.hS:h52a:
rIn file included from e../src/s2/s1angle.hM:e28m:
oIn file included from r../src/s2/s2point.hy:U27s:
aIn file included from g../src/s2/s2coder.he:(23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67 :
CIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hr:d29R:
eIn file included from p/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n1179u:l10l:  rwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
);
       1179|  |                                                        ^ 
 M/usr/local/clang/include/absl/base/nullability.hu:t241e:x22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien em ua_b;s
l      _| n         ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullabIn file included from ls2/s2point_compression.cce: 17_:
NIn file included from u../src/s2/s2point_compression.hl:l52a:
bIn file included from l../src/s2/s1angle.he:
28      :
| In file included from                       ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethoIn file included from ds2/s2polyline.ccI:d18e:
nIn file included from t../src/s2/s2polyline.hi:f29i:
er/usr/local/clang/include/absl/types/span.h :m212e:t22h:o dwarning: )type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension];

      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22:   212note:  | expanded from macro 'absl_nonnull' 
 u  s241i | n#gd epfoiinnet earb s=l _Tn*o nanbuslll_ n_uNlolnanbuillli
t      y| _                     ^u
nknown;
      |                      ^
In file included from s2/s2point_compression.cc:/usr/local/clang/include/absl/base/nullability.h17::
289In file included from :../src/s2/s2point_compression.h34::52 :
note: In file included from expanded from macro 'absl_nullability_unknown'../src/s2/s1angle.h
:28:
  In file included from 289../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
a/usr/local/clang/include/absl/strings/cord.hb:i986l:i40t:y _warning: unkntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn   _986N | u l l _ uvnosipde cPirfeipeedn
d      T| r                                 ^e
eToInlined(CIn file included from os2/s2polyline.ccr:d18R:
eIn file included from p../src/s2/s2polyline.h*: 29a:
b/usr/local/clang/include/absl/types/span.hs:l213_:n34o:n nwarning: utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
l t  r213e | e , 
u      s| i                                       ^n
g /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:_ pnote: oexpanded from macro 'absl_nonnull'i
nt  e241r |  #=d ecfoinnset  aTb*s la_bnsoln_nnuullll a_bNiolnintuyl_lu
n      k| n                     ^o
wn;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
In file included from s2/s2point_compression.cc  :28917 | :
#In file included from d../src/s2/s2point_compression.he:f52i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23i:
lIn file included from i/usr/local/clang/include/absl/status/status.ht:y67_:
uIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hk:n29o:
w/usr/local/clang/include/absl/strings/cord.hn: 988_:N37u:l lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
nspe  c988i | f i e d 
v      o| i                                 ^d
 PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:29:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline.cc: 181140:
 | In file included from  ../src/s2/s2polyline.h : 29 :
 /usr/local/clang/include/absl/types/span.h : 739 : 21 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       739  |  S p a n < T >   M a kCeoSrpdaRne(pTE*x taebrsnla_ln*u lalbasbll_en obnenguilnl  ArBeSpL)_;A
T      T| R                                                ^I
BUT/usr/local/clang/include/absl/base/nullability.hE:_241L:I22F:E Tnote: Iexpanded from macro 'absl_nonnull'M
E_  B241O | U#NdDe,f
i      n| e                    ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 _  N257o | n#nduelfli
n      e|                       ^a
bsl_nullable _Nullable
      |                       ^In file included from 
s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2polyline.cc27::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2polyline.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/types/span.h::67740:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
1146:10  :740  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1146  |  C o r d R e p *   aTb*s la_bnsoln_nnuullll aNbelweE xetnedr)n anloReexpc(eapbts l{:
:      s| t                    ^r
in/usr/local/clang/include/absl/base/nullability.hg:_257v:i23e:w  note: dexpanded from macro 'absl_nullable'a
ta  ,257
 |       #| d         ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee f_iNnuel laabbslle_
n      o| n                      ^n
ull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2polyline.cc:  18241:
 | In file included from #../src/s2/s2polyline.hd:e29f:
in/usr/local/clang/include/absl/types/span.he: 794a:b8s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnull   794_ | N o n n uTl*l 
a      b| s                     ^l
_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size)In file included from  s2/s2point_compression.ccn:o17e:
xIn file included from c../src/s2/s2point_compression.he:p52t:
 In file included from {../src/s2/s1angle.h
:      28| :
       ^In file included from 
../src/s2/s2point.h:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h257::2323:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nullable'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :25729 | :
#/usr/local/clang/include/absl/strings/cord.hd:e1245f:i38n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_n u1245l | lianbllien e_ Naublslla:b:lceo
r      d| _                      ^i
nternal::CordRep* absl_nullable Cord::InlineRep::tree(In file included from )s2/s2polyline.cc
:      18| :
                                     ^In file included from 
../src/s2/s2polyline.h:29/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/types/span.h::23799:: 32note: :expanded from macro 'absl_nullable' 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
257 | #  d799e | fSipnaen <acbosnls_tn uTl>l aMbalkee C_oNnusltlSapbalne(
T      *|                        ^a
bsl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:29:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |     In file included from  s2/s2point_compression.cc : 17 :
 In file included from  ../src/s2/s2point_compression.h : 52 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
TIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
l/usr/local/clang/include/absl/strings/cord.hl:a1258b:l36e:  ewarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
) n o1258e | xicnelpitn e{ 
c      o| r                               ^d
_i/usr/local/clang/include/absl/base/nullability.hn:t257e:r23n:a lnote: :expanded from macro 'absl_nullable':
Co  r257d | R#edpeFfliante*  aabbssll__nnuolnlnaubllle
       _| N                                   ^u
ll/usr/local/clang/include/absl/base/nullability.ha:241b:l22e:
       note: | expanded from macro 'absl_nonnull'                      ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline vIn file included from os2/s2polygon.cci:d18 :
CIn file included from o../src/s2/s2polygon.hr:d29::
:In file included from I/usr/local/clang/include/absl/container/flat_hash_map.hn:l43i:
nIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hR:e19p:
:In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:m57p:
lIn file included from a/usr/local/clang/include/absl/hash/hash.hc:e89T:
rIn file included from e/usr/local/clang/include/absl/hash/internal/hash.he:(90C:
or/usr/local/clang/include/absl/strings/string_view.hd:R53e:p54*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_no   n53n | ucloln srteepx,p
r       | s                                                  ^t
ri/usr/local/clang/include/absl/base/nullability.hn:g241_:v22i:e wnote:  expanded from macro 'absl_nonnull'N
ul  l241S | a#fdeeSftirnien gaVbiselw_(ncoonnnsutl lc h_aNro*n naublsll
_      n| u                     ^l
lable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43In file included from :
s2/s2point_compression.ccIn file included from :../src/s2/s1angle.h17::
28In file included from :
../src/s2/s2point_compression.hIn file included from :../src/s2/s2point.h52::
27In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2coder.h28::
23In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/cord.h67::
94In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h29::
31:
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/synchronization/mutex.h1282::48947::14 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

 1282   | 489i | n l i n e   vvooiidd  C(o*radb:s:lI_nnluilnleaRbelpe: :iSnevtaTrrieaen(tC)o(rvdoRiedp**  aabbssll__nnuolnlnaublill irteyp_,u
n      k| n                                              ^o
wn/usr/local/clang/include/absl/base/nullability.h):,241
:      22| :             ^ 
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:  257241: | 23#:d enote: fexpanded from macro 'absl_nullable'i
ne   a257b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
l      e|                       ^_
Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       voIn file included from is2/s2point_compression.cc:d17 :
(In file included from *../src/s2/s2point_compression.ha:b52s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from i../src/s2/s2coder.hn:v23a:
rIn file included from i/usr/local/clang/include/absl/status/status.ha:n67t:
)In file included from (/usr/local/clang/include/absl/status/internal/status_internal.hv:o29i:
d/usr/local/clang/include/absl/strings/cord.h*: 1290a:b54s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
llab i1290l | iitnyl_iunnek nvoowind) ,C
o      r| d                                            ^:
:I/usr/local/clang/include/absl/base/nullability.hn:l289i:n34e:R enote: pexpanded from macro 'absl_nullability_unknown':
:Se  t289T | r#edeeOfriEnmep tayb(sClo_rnduRlelpa*b ialbistly__nuunlklnaobwlne  _rNeupl,l
_      u| n                                                     ^s
pe/usr/local/clang/include/absl/base/nullability.hc:i257f:i23e:d 
      note: | expanded from macro 'absl_nullable'                                 ^

  257 | #define absl_In file included from ns2/s2padded_cell.ccu:l18l:
aIn file included from b../src/s2/s2padded_cell.hl:e23 :
_In file included from N../src/s2/s2cell_id.hu:l43l:
aIn file included from b../src/s2/s1angle.hl:e28
:
      In file included from | ../src/s2/s2point.h                      ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nuIn file included from ls2/s2point_compression.ccl:a17b:
iIn file included from l../src/s2/s2point_compression.hi:t52y:
_In file included from u../src/s2/s1angle.hn:k28n:
oIn file included from w../src/s2/s2point.hn: 27_:
NIn file included from u../src/s2/s2coder.hl:l23_:
uIn file included from n/usr/local/clang/include/absl/status/status.hs:p67e:
cIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hf:i29e:
d/usr/local/clang/include/absl/strings/cord.h
:      1301| :                                 ^56
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline vIn file included from os2/s2padded_cell.cci:d18 :
CIn file included from o../src/s2/s2padded_cell.hr:d23::
:In file included from I../src/s2/s2cell_id.hn:l43i:
nIn file included from e../src/s2/s1angle.hR:e28p:
:In file included from :../src/s2/s2point.hC:o27m:
mIn file included from i../src/s2/s2coder.ht:T23r:
eIn file included from e/usr/local/clang/include/absl/status/status.h(:c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29C:
oIn file included from r/usr/local/clang/include/absl/strings/cord.hd:R94e:
pIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_499n:u35l:l awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
e o  l499d | _ r evpo,i
d       | E                                                       ^n
ab/usr/local/clang/include/absl/base/nullability.hl:e257D:e23b:u gnote: Lexpanded from macro 'absl_nullable'o
g(  c257o | n#sdte fcihnaer *a basbls_ln_unlullalbalbel e_ Nnualmlea)b;l
e      
|                                         ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  In file included from 257s2/s2point_compression.cc | :#17d:
eIn file included from f../src/s2/s2point_compression.hi:n52e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23 :
_In file included from N/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29
:
      /usr/local/clang/include/absl/strings/cord.h| :                      ^1302
:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep*In file included from  s2/s2padded_cell.cca:b18s:
lIn file included from _../src/s2/s2padded_cell.hn:o23n:
nIn file included from u../src/s2/s2cell_id.hl:l43 :
rIn file included from e../src/s2/s1angle.hp:,28
:
      In file included from | ../src/s2/s2point.h                                                 ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241In file included from  | /usr/local/clang/include/absl/strings/cord.h#:d94e:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s549l:_40n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _  N549o | n n usltla
t      i| c                     ^ 
void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2point_compression.ccn:o17n:
nIn file included from u../src/s2/s2point_compression.hl:l52 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:In file included from 38s2/s2padded_cell.cc:: 18:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2padded_cell.h
:23:
In file included from ../src/s2/s2cell_id.h: 431312:
 | In file included from i../src/s2/s1angle.hn:l28i:
nIn file included from e../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h:::23c:
oIn file included from r/usr/local/clang/include/absl/status/status.hd:_67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:r29n:
aIn file included from l/usr/local/clang/include/absl/strings/cord.h:::94C:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hd:R31e:
p/usr/local/clang/include/absl/synchronization/mutex.h*: 550a:b64s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab  l550e |   C o r d : : I n l i n e R e p : : c l e a r ( )   { 
        |                                       ^ 
 b/usr/local/clang/include/absl/base/nullability.ha:s257e:_23i:n tnote: eexpanded from macro 'absl_nullable'r
na  l257: | :#PdeerfTihnree aadbSsyln_cnhu*l laabbslle_ n_oNnunlullalb lwe)
;      
|                             ^| 
                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2point_compression.cc551: | 17 :
 In file included from s../src/s2/s2point_compression.ht:a52t:
iIn file included from c../src/s2/s1angle.h :b28o:
oIn file included from l../src/s2/s2point.h :D27e:
cIn file included from r../src/s2/s2coder.he:m23e:
nIn file included from t/usr/local/clang/include/absl/status/status.hS:y67n:
cIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.hS:e29m:
(/usr/local/clang/include/absl/strings/cord.hM:u1321t:e48x:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n o1321n | niunllli nmeu ,v
o      i| d                                       ^ 
Co/usr/local/clang/include/absl/base/nullability.hr:d241:::22I:n lnote: iexpanded from macro 'absl_nonnull'n
eR  e241p | :#:dCeofpiynTeo Aarbrsaly_(ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^d
st) const In file included from {s2/s2padded_cell.cc
:      18| :
                                               ^In file included from 
../src/s2/s2padded_cell.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2cell_id.h::2243::
 In file included from ../src/s2/s1angle.hnote: :expanded from macro 'absl_nonnull'28
:
In file included from ../src/s2/s2point.h  :24127 | :
In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h_:N31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u552l:l64
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EIn file included from Xs2/s2point_compression.ccC:L17U:
SIn file included from I../src/s2/s2point_compression.hV:E52_:
LIn file included from O../src/s2/s1angle.hC:K28_:
FIn file included from U../src/s2/s2point.hN:C27T:
IIn file included from O../src/s2/s2coder.hN:(23m:
uIn file included from )/usr/local/clang/include/absl/status/status.h
:      67| :
                            ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.h241::150522::41 : note: warning: expanded from macro 'absl_nonnull'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | # d1505e | fiinnlei naeb svlo_indo nCnourldl: :_CNoopnynTuolAlr
r      a| y                     ^I
mpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2padded_cell.cc::2218::
 In file included from ../src/s2/s2padded_cell.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from ../src/s2/s2cell_id.h  :24143 | :
#In file included from d../src/s2/s1angle.he:f28i:
nIn file included from e../src/s2/s2point.h :a27:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                     ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BYIn file included from (s2/s2point_compression.cct:h17i:
sIn file included from )../src/s2/s2point_compression.h,:
52      :
| In file included from                                                                    ^~~~../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cor/usr/local/clang/include/absl/synchronization/mutex.hd:_649i:n29t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l::C  o649r | d R eepx*p laibcsilt_ nMountneuxlLlo ctkr(eMeu)t e{x
*       | a                            ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
mu  ,241  | c#odnesfti nCeo nadbistli_onno&n ncuolnld )_
N      o| n                            ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_inIn file included from ts2/s2padded_cell.cce:r18n:
aIn file included from l../src/s2/s2padded_cell.h:::23C:
oIn file included from r../src/s2/s2cell_id.hd:R43e:
pIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from t/usr/local/clang/include/absl/status/status.hr:e67e:
)In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h{:
29      :
| In file included from                             ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22:/usr/local/clang/include/absl/synchronization/mutex.h :670note: :expanded from macro 'absl_nonnull'74
:   warning: 241 | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]#
defin  e670  | a b selx_pnloincniutl lR e_aNdoenrnMuultle
x      L| o                     ^c
k(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explIn file included from is2/s2point_compression.ccc:i17t:
 In file included from R../src/s2/s2point_compression.he:a52d:
eIn file included from r../src/s2/s1angle.hM:u28t:
eIn file included from x../src/s2/s2point.hL:o27c:
kIn file included from (../src/s2/s2coder.hM:u23t:
eIn file included from x/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
o/usr/local/clang/include/absl/strings/cord.hn:n1530u:l55l:  mwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 ABS L1530_ | SiHnAlRiEnDe_ LCOoCrKd_:F:UCNhCuTnIkOINt(emrua)t
o      r| :                                  ^:
Ch/usr/local/clang/include/absl/base/nullability.hu:n241k:I22t:e rnote: aexpanded from macro 'absl_nonnull't
or  (241c | o#ndsetf iCnoer da*b salb_snlo_nnnounlnlu l_lN ocnonrudl)l 
{      
|                            ^| 
                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2padded_cell.cco:n18n:
uIn file included from l../src/s2/s2padded_cell.hl:
23      :
| In file included from                      ^../src/s2/s2cell_id.h
:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);In file included from 
s2/s2point_compression.cc      :| 17                  ^:

In file included from ../src/s2/s2point_compression.h:/usr/local/clang/include/absl/base/nullability.h52::
289In file included from :../src/s2/s1angle.h34::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nullability_unknown':
27:
In file included from ../src/s2/s2coder.h  :28923 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
s/usr/local/clang/include/absl/strings/cord.hl:_1666n:u48l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
lity _1666u | niknnloiwnne  _CNourldl _Cuonrsdp:e:cAidfviaendc
e      A| n                                 ^d
Read(CharIterator* absl_noIn file included from ns2/s2padded_cell.ccn:u18l:
lIn file included from  ../src/s2/s2padded_cell.hi:t23,:

In file included from       ../src/s2/s2cell_id.h| :                                               ^43
:
In file included from ../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u814l:l20 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l814
 |        |                       ^C
ondition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2point_compression.cc::24117::
22In file included from :../src/s2/s2point_compression.h :52note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 1672_:N41o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                      ^ 
1672 | inliIn file included from ns2/s2padded_cell.cce: 18v:
oIn file included from i../src/s2/s2padded_cell.hd: 23C:
oIn file included from r../src/s2/s2cell_id.hd::43::
AIn file included from d../src/s2/s1angle.hv:a28n:
cIn file included from e../src/s2/s2point.h(:C27h:
aIn file included from r../src/s2/s2coder.hI:t23e:
rIn file included from a/usr/local/clang/include/absl/status/status.ht:o67r:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
i/usr/local/clang/include/absl/synchronization/mutex.ht:,814 :s42i:z ewarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]t
 n_  b814y | t e sC)o n{d
i      t| i                                        ^o
n(b/usr/local/clang/include/absl/base/nullability.ho:o241l: 22(:* anote: bexpanded from macro 'absl_nonnull's
l  _241n | o#ndneufliln ef uanbcs)l(_Tn*o nanbuslll_ n_uNlolnanbuillli
t      y| _                     ^u
nknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14In file included from :s2/s2padded_cell.cc :18warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2padded_cell.h
:23:
In file included from ../src/s2/s2cell_id.h  :11943 | :
 In file included from  ../src/s2/s1angle.hS:t28a:
tIn file included from u../src/s2/s2point.hs:R27e:
pIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from C/usr/local/clang/include/absl/strings/cord.hl:o94n:
eIn file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
             ^/usr/local/clang/include/absl/synchronization/mutex.h
:1069:32:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull' 
1069 |     241b | o#odle fWianiet WaibtshlD_enaodnlniunlel( M_uNtoenxn*u lalb
s      l| _                     ^n
onnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2point_compression.cc::2217::
 In file included from ../src/s2/s2point_compression.hnote: :expanded from macro 'absl_nonnull'52
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
n/usr/local/clang/include/absl/status/internal/status_internal.hn:u125l:l14 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l125
 |        |                       ^S
tatusRep* absl_nonnull CloneAndUnreIn file included from fs2/s2padded_cell.cc(:
18      :
| In file included from              ^../src/s2/s2padded_cell.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2cell_id.h241::4322:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h:  27241:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h_:N31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u1088l:l35
:       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

 1088 |   void EnableDebugLog(coIn file included from ns2/s2point_compression.ccs:t17 :
cIn file included from h../src/s2/s2point_compression.ha:r52*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23 :
nIn file included from a/usr/local/clang/include/absl/status/status.hm:e67):
;/usr/local/clang/include/absl/status/internal/status_internal.h
:      128| :                                  ^14
: /usr/local/clang/include/absl/base/nullability.hwarning: :257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23: note:   expanded from macro 'absl_nullable'128
 |     257S | t#adteufsiRneep *a basbls_ln_unlolnanbullel  _CNluolnleaAbnldeU
n      r| e                      ^f
() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2padded_cell.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2padded_cell.h:  23241:
 | In file included from #../src/s2/s2cell_id.hd:e43f:
iIn file included from n../src/s2/s1angle.he: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                     ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: In file included from warning: s2/s2padded_cell.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2padded_cell.h:23  :
149In file included from  | ../src/s2/s2cell_id.hc:o43n:
sIn file included from t../src/s2/s1angle.h :c28h:
aIn file included from r../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hM:a29k:
eIn file included from C/usr/local/clang/include/absl/strings/cord.hh:e94c:
kIn file included from F/usr/local/clang/include/absl/strings/internal/cordz_info.ha:i31l:
S/usr/local/clang/include/absl/synchronization/mutex.ht:r1249i:n8g:( 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
            ^
 1249 |  /usr/local/clang/include/absl/base/nullability.h : 241 :T22*:  abnote: sexpanded from macro 'absl_nonnull'l
_no  n241n | u#ldle foibnjee catb,s
l      _| n       ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_noIn file included from ns2/s2point_compression.ccn:u17l:
lIn file included from  ../src/s2/s2point_compression.h_:N52o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 150s2/s2padded_cell.cc | : 18 :
 In file included from  ../src/s2/s2padded_cell.hc:o23n:
sIn file included from t../src/s2/s2cell_id.h :a43b:
sIn file included from l../src/s2/s1angle.h:::28S:
tIn file included from a../src/s2/s2point.ht:u27s:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
sIn file included from t/usr/local/clang/include/absl/strings/cord.ha:t94u:
sIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t1250 :c43h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs l1250_ | n o n n ublolo lp r(eafbisxl):;:
t      y| p                        ^e
_i/usr/local/clang/include/absl/base/nullability.hd:e241n:t22i:t ynote: <expanded from macro 'absl_nonnull'T
>:  :241t | y#pdee:f:i*n ea basbls_ln_onnonnunlull lm e_tNhoondn)u(l)l)

            | |                      ^                                          ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2point_compression.cc  :24117 | :
#In file included from d../src/s2/s2point_compression.he:f52i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
n/usr/local/clang/include/absl/status/internal/status_internal.hu:l150l:
58      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_noIn file included from ns2/s2padded_cell.ccn:u18l:
lIn file included from  ../src/s2/s2padded_cell.hp:r23e:
fIn file included from i../src/s2/s2cell_id.hx:)43;:

In file included from       ../src/s2/s1angle.h| :                                                         ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27241:
:In file included from 22../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h | :#29d:
eIn file included from f/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o1259n:n14u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non n1259u | l l 
        | c                     ^o
nst T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_compression.cc:17:
In file included from ../src/s2/s2point_compression.h:52:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667In file included from  | s2/s2point_compression.cc : 17s:
tIn file included from a../src/s2/s2point_compression.ht:i52c:
 In file included from C../src/s2/s1angle.ho:r28d:
 In file included from A../src/s2/s2point.hd:v27a:
nIn file included from c../src/s2/s2coder.he:A23n:
dR/usr/local/clang/include/absl/status/status.he:a1031d:(42C:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
terat o1031r | *i nalbisnle_ ncoonnnsutl ls tiatt,u ss_iiznet_etr nna_lb:y:tSetsa)t;u
s      R| e                                           ^p
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | S#tdaetfuisn:e: RaebpsTlo_Pnooinnntuelrl( 
_      N| o                                         ^n
null/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2padded_cell.ccl: 18_:
NIn file included from o../src/s2/s2padded_cell.hn:n23u:
lIn file included from l../src/s2/s2cell_id.h
:      43| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* aIn file included from bs2/s2point_compression.ccs:l17_:
nIn file included from o../src/s2/s2point_compression.hn:n52u:
lIn file included from l../src/s2/s1angle.h :i28t:
,In file included from  ../src/s2/s2point.hs:i27z:
eIn file included from _../src/s2/s2coder.ht: 23n:
_/usr/local/clang/include/absl/status/status.hb:y1038t:e33s:) ;warning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                    ^
/usr/local/clang/include/absl/base/nullability.h :1038241 | : 22 :   note: sexpanded from macro 'absl_nonnull't
at  u241s | _#idnetfeirnnea la:b:sSlt_antounsnRuelpl*  _aNbosnln_unloln
n      u| l                     ^l
 rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2point_compression.ccs2/s2padded_cell.cc::1718:
:
In file included from In file included from ../src/s2/s2point_compression.h../src/s2/s2padded_cell.h::5223:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2cell_id.h::2843:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2327:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2coder.h::106323::
13In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
 /usr/local/clang/include/absl/strings/cord.h1063: | 736c:o17n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har  *736  | a b s l _cnoonnsntu lClo rSdt*a taubssMle_snsoangneuAlslC Sctorr(d
_      ;| 
            ^      
|                 ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2padded_cell.cc  :17018 | :
bIn file included from o../src/s2/s2padded_cell.ho:l23 :
sIn file included from a../src/s2/s2cell_id.hf:e43_:
sIn file included from t../src/s2/s1angle.hr:t28o:
uIn file included from 3../src/s2/s2point.h2:_27b:
aIn file included from s../src/s2/s2coder.he:(23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl::67::
st/usr/local/clang/include/absl/status/internal/status_internal.hr:i119n:g14_:v iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
 te  x119t | ,   uSitnatt3u2s_Rte*p *a basbls_ln_onnonnunlull lv aClluoen,e
(      
|                                                                 ^| 
             ^
/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note:   expanded from macro 'absl_nonnull'241
 | #d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.hs2/s2padded_cell.cc::11618:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2padded_cell.h::2323:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2cell_id.h::17243::
59In file included from :../src/s2/s1angle.h :28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h172: | 23b:
oIn file included from o/usr/local/clang/include/absl/status/status.hl: 67s:
a/usr/local/clang/include/absl/status/internal/status_internal.hf:e125_:s14t:r twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
64_  b125a | s e (Satbastlu:s:Rsetpr*i nagb_svli_enwo ntneuxltl,  Culionnte6A4n_dtU*n raebfs(l
_      n| o             ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241v:a22l:u enote: ,expanded from macro 'absl_nonnull'

      |                                                             ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from In file included from ../src/s2/s2padded_cell.hs2/s2min_distance_targets.cc::2331:
:
In file included from In file included from ../src/s2/s2cell_id.h../src/s2/s2closest_cell_query.h::4332:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2closest_cell_query_base.h::2833:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/btree_set.h::2765:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree.h::2370:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/layout.h::67198:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/str_cat.h::128116::
14In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/numbers.h
:175:41:   128 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Stat  u175s | R e p *   a b s l _ n o n n u l l   C l o n e A n daUbnsrle:f:(u)i ncto1n2s8t*; 
a      b| s             ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: vexpanded from macro 'absl_nonnull'a
lu  e241, |  #idnetf ibnaes ea)b;s
l      _| n                                        ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_noIn file included from ns2/s2padded_cell.ccn:u18l:
lIn file included from  ../src/s2/s2padded_cell.hb:u23f:
fIn file included from e../src/s2/s2cell_id.hr:)43
:
      In file included from | ../src/s2/s1angle.h                                                ^:
28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#d/usr/local/clang/include/absl/status/internal/status_internal.he:f149i:n13e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o149n | ncuolnls t_N ocnhnaurl*l 
a      b| s                     ^l
_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2min_distance_targets.ccn:u31l:
lIn file included from  ../src/s2/s2closest_cell_query.h_:N32o:
nIn file included from n../src/s2/s2closest_cell_query_base.hu:l33l:

In file included from       /usr/local/clang/include/absl/container/btree_set.h| :                     ^65
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from In file included from s2/s2padded_cell.cc/usr/local/clang/include/absl/strings/internal/stringify_sink.h::1823:
:
In file included from ../src/s2/s2padded_cell.h/usr/local/clang/include/absl/strings/numbers.h::23217:
:In file included from 5../src/s2/s2cell_id.h:: 43:
warning: In file included from 'diagnose_if' is a clang extension [-Wgcc-compat]../src/s2/s1angle.h
:28:
In file included from   ../src/s2/s2point.h217: | 27 :
 In file included from  ../src/s2/s2coder.h :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:I67N:
T/usr/local/clang/include/absl/status/internal/status_internal.hE:R150N:A25L:_ Nwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_MI  N150_ | S I Z E (c
o      n| s    ^t
 a/usr/local/clang/include/absl/base/macros.hb:s251l::18::S tnote: aexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE't
us*   251a | b s l___naotntnruilblu tset_a_t(u(sd,i acgonnosste _cihfa(r_*_ baubisllt_inno_nonbujlelc tp_rseifziex()O;b
j      ,|                          ^0
) /usr/local/clang/include/absl/base/nullability.h<: 241N:,22 :\ 
      note: |                  ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   sIn file included from ts2/s2min_distance_targets.cca:t31i:
cIn file included from  ../src/s2/s2closest_cell_query.hs:t32a:
tIn file included from u../src/s2/s2closest_cell_query_base.hs:_33i:
nIn file included from t/usr/local/clang/include/absl/container/btree_set.he:r65n:
aIn file included from l/usr/local/clang/include/absl/container/internal/btree.h:::70S:
tIn file included from a/usr/local/clang/include/absl/container/internal/layout.ht:u198s:
RIn file included from e/usr/local/clang/include/absl/strings/str_cat.hp:*116 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:l23_:
n/usr/local/clang/include/absl/strings/numbers.ho:n340n:u53l:l  warning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
epar  e340T | o M o d i f y ( 
        |                                       ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   aabbssll_:n:ouninnutl1l2 8_*N oanbnsull_ln
o      n| n                     ^u
ll out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2padded_cell.cc_:N18o:
nIn file included from n../src/s2/s2padded_cell.hu:l23l:

In file included from       ../src/s2/s2cell_id.h| :                     ^43
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyStriIn file included from ns2/s2min_distance_targets.ccg:(31):
;In file included from 
../src/s2/s2closest_cell_query.h      :| 32                            ^:

In file included from ../src/s2/s2closest_cell_query_base.h:/usr/local/clang/include/absl/base/nullability.h33::
241In file included from :/usr/local/clang/include/absl/container/btree_set.h22::65 :
In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'absl_nonnull':
70:
In file included from   /usr/local/clang/include/absl/container/internal/layout.h241: | 198#:
dIn file included from e/usr/local/clang/include/absl/strings/str_cat.hf:i116n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n346o:n44n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Non  n346u | l l 
        |                       ^ 
                       In file included from  s2/s2padded_cell.cc : 18 :
iIn file included from n../src/s2/s2padded_cell.ht:_23t:
yIn file included from p../src/s2/s2cell_id.he:*43 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :o23u:
t/usr/local/clang/include/absl/status/status.h): 733{:
29      :|                                             ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:  22733: |   note:  expanded from macro 'absl_nonnull's
ta  t241i | c# dceofnisnte  satbds:l:_sntorninnugl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2min_distance_targets.ccn:n31u:
lIn file included from l../src/s2/s2closest_cell_query.h :_32N:
oIn file included from n../src/s2/s2closest_cell_query_base.hn:u33l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_set.h      :| 65                     ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                 In file included from  s2/s2padded_cell.cc : 18 :
 In file included from  ../src/s2/s2padded_cell.h : 23a:
bIn file included from s../src/s2/s2cell_id.hl::43::
iIn file included from n../src/s2/s1angle.ht:1282:
8In file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
n/usr/local/clang/include/absl/status/status.hn:u751l:l61 :o uwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
        | 751                                                      ^ | 
  /usr/local/clang/include/absl/base/nullability.hs:t241a:t22i:c  note: uexpanded from macro 'absl_nonnull'i
nt  p241t | r#_dte fPionien taebrsTlo_Rneopn(nsutlalt u_sN_oinnntuelrln
a      l| :                     ^:
StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2min_distance_targets.ccu:l31l:

In file included from       ../src/s2/s2closest_cell_query.h| :                     ^32
:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:In file included from 356s2/s2padded_cell.cc::5618::
 In file included from ../src/s2/s2padded_cell.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from ../src/s2/s2cell_id.h:43:
  In file included from 356../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 /usr/local/clang/include/absl/status/status.h : 752 : 44 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       752  |      s t a t i c   c o nasbts ls:t:autiunst_1i2n8t*e ranbasll:_:nSotnantuulslR eopu*t )a b{s
l      _| n                                                       ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l241 :R22e:p Tnote: oexpanded from macro 'absl_nonnull'P
oi  n241t | e#rd(e
f      i| n                                           ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2padded_cell.cc:18:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull In file included from Ss2/s2min_distance_targets.cct:a31t:
uIn file included from s../src/s2/s2closest_cell_query.hM:e32s:
sIn file included from a../src/s2/s2closest_cell_query_base.hg:e33A:
sIn file included from C/usr/local/clang/include/absl/container/btree_set.hS:t65r:
(In file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70            ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241:/usr/local/clang/include/absl/strings/str_cat.h22::501 :32note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f501i | nveo iadb sAlp_pneonndnPuilelc e_Nonsn(usltld
:      :| s                     ^t
ring* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2projections.cc -o s2/s2projections.o
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(In file included from ss2/s2min_distance_targets.cc):,31 :
"In file included from b../src/s2/s2closest_cell_query.ha:d32 :
fIn file included from o../src/s2/s2closest_cell_query_base.hr:m33a:
tIn file included from  /usr/local/clang/include/absl/container/btree_set.ht:r66a:
p"/usr/local/clang/include/absl/container/internal/btree_container.h):)523):
31      :|                       ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   fals/usr/local/clang/include/absl/strings/internal/str_format/bind.he:,162 :f22a:l swarning: e'enable_if' is a clang extension [-Wgcc-compat])
;
      |                                 ^162
 |   /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9_:_ anote: tmacro 'ABSL_INTERNAL_X' defined heret
rib  u496t | e#_d_e(f(iennea bAlBeS_Li_fI(NVTaElRiNdAFLo_rXm(aFtuInmcp,l <CAarlglse.e.,. >K(Qsu)a,l ," bMaQdu aflo,r mKaVta lturea,p "M)V)a)l
u      e| ,                     ^ 
...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #defIn file included from is2/s2polyline.ccn:e18 :
AIn file included from B../src/s2/s2polyline.hS:L31_:
IIn file included from N../src/s2/base/logging.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37X:
(In file included from F/usr/local/clang/include/absl/log/internal/check_impl.hu:n21c:
,In file included from  /usr/local/clang/include/absl/log/internal/check_op.hC:a40l:
lIn file included from e/usr/local/clang/include/absl/log/internal/nullstream.he:,37 :
KQ/usr/local/clang/include/absl/strings/string_view.hu:a53l:,54 :M Qwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
l, KVa   l53u | ec,o nMsVtaelxuper,  s.t.r.i)n g _ v i e\w
       N| u        ^l
lSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(In file included from Fs2/s2point_region.ccu:n18c:
,In file included from  ../src/s2/s2point_region.hC:a25l:
lIn file included from e../src/s2/s1angle.he:,28 :
KIn file included from Q../src/s2/s2point.hu:a27l:
,In file included from  ../src/s2/s2coder.hM:Q23u:
aIn file included from l/usr/local/clang/include/absl/status/status.h,: 67K:
VIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl:u29e:
,In file included from  /usr/local/clang/include/absl/strings/cord.hM:V82a:
lIn file included from u/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:,23 :
.In file included from ./usr/local/clang/include/absl/crc/crc32c.h.:)32 :
  /usr/local/clang/include/absl/strings/str_format.h : 115\:
52      :|          ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thiIn file included from ss2/s2point_region.cc):)18,:
 In file included from  ../src/s2/s2point_region.h : 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67\:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                                                   ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/common.h::8232:
:In file included from 9/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:: 23:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/crc/crc32c.h
:32:
   /usr/local/clang/include/absl/strings/str_format.h32: | 155#:d36e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ABS  L155_ | I N TeExRpNlAiLc_iItF _Ffoarlmsaet(Ciofu_nstaCtaipstfuireed(,i n.t.*. )a b_s_lV_An_oAnRnGuSl_l_ 
p      )|          ^:
 p_(p) {}
      | In file included from                                    ^s2/s2min_distance_targets.cc
:31:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2closest_cell_query.h::24132::
22In file included from :../src/s2/s2closest_cell_query_base.h :33note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/btree_set.h:66  :
241/usr/local/clang/include/absl/container/internal/btree_container.h | :#531d:e3f:i nwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
abs  l531_ | n o nAnBuSlLl_ I_NNToEnRnNuAlLl_
X      (| i                     ^n
sert_or_assign, insert_or_assign_In file included from is2/s2point_region.ccm:p18l:
,In file included from  ../src/s2/s2point_region.hc:o25n:
sIn file included from t../src/s2/s1angle.h :&28,:
 In file included from &../src/s2/s2point.h&:,27 :
fIn file included from a../src/s2/s2coder.hl:s23e:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67  ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/btree_container.h::29511:
:In file included from 52/usr/local/clang/include/absl/strings/cord.h:: 82:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
In file included from   /usr/local/clang/include/absl/crc/crc32c.h511: | 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 164 : 8 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL  _164I | N T EiRnNtA*L _aAbTsTlR_InBoUnTnEu_lClA PUTnUuRsEeDd_(B)Y ({t hriest)u)r)n   p _ ;   } 
        |         ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 \  
241       | | #                                                   ^d
ef/usr/local/clang/include/absl/container/internal/common.hi:n32e: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNAL_IF_false(ifIn file included from _s2/s2point_region.ccs:a18t:
iIn file included from s../src/s2/s2point_region.hf:i25e:
dIn file included from ,../src/s2/s1angle.h :.28.:
.In file included from )../src/s2/s2point.h :_27_:
VIn file included from A../src/s2/s2coder.h_:A23R:
GIn file included from S/usr/local/clang/include/absl/status/status.h_:_67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h        ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_In file included from ;s2/s2min_distance_targets.cc
:      31| :
       ^In file included from 
../src/s2/s2closest_cell_query.h:32/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2closest_cell_query_base.h::2233::
 In file included from /usr/local/clang/include/absl/container/btree_set.hnote: :expanded from macro 'absl_nonnull'66
:
/usr/local/clang/include/absl/container/internal/btree_container.h  :241534 | :#23d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e   a534b | s l _ n o n n u l l   _ N o n n u l lt
r      u| e                     ^)
;
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
533:3:   warning: 380passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
std:  :533s | t r iAnBgS&L _SItNrTAEpRpNeAnLd_FXo(rimnaste(rstt_do:r:_satsrsiinggn*,  aibnssle_rnto_nonru_lals sdisgtn,_
i      m| p                                          ^l
, c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :& ,note:  expanded from macro 'absl_nonnull'&
&,   241f | a#ldseef,i
n      e|    ^a
bs/usr/local/clang/include/absl/container/internal/btree_container.hl:_509n:o52n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 _N  o509n | n u l l 
        |                       ^ 
  ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.hs2/s2point_region.cc::6618:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2point_region.h533::253:
:In file included from  ../src/s2/s1angle.h:warning: 28passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2point.h:27:
  In file included from 533../src/s2/s2coder.h | : 23 :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
IIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hT:E29R:
NIn file included from A/usr/local/clang/include/absl/strings/cord.hL:_82X:
(In file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:s23e:
rIn file included from t/usr/local/clang/include/absl/crc/crc32c.h_:o32r:
_/usr/local/clang/include/absl/strings/str_format.ha:s440s:i24g:n ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nser  t440_ | oirn_ta sFsPirginn_tiFm(pslt,d :c:oFnIsLtE *& ,a b&s&l,_ nfoanlnsuel,l
       o| u  ^t
pu/usr/local/clang/include/absl/container/internal/btree_container.ht:,511 :c52o:n snote: texpanded from macro 'ABSL_INTERNAL_X' 
For  m511a | t S p e c < A r g s .A.B.S>L&_ IfNoTrEmRaNtA,L
_      A| T                       ^T
RIB/usr/local/clang/include/absl/base/nullability.hU:T241E:_22C:A Pnote: Texpanded from macro 'absl_nonnull'U
RE  D241_ | B#Yd(etfhiinse) )a)b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
\
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, .In file included from .s2/s2point_region.cc.:)18 :
iIn file included from f../src/s2/s2point_region.h_:s25a:
tIn file included from i../src/s2/s1angle.hs:f28i:
eIn file included from d../src/s2/s2point.h
:      27| :
        ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :s2/s2min_distance_targets.cc23::
31In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :../src/s2/s2closest_cell_query.h32::
32:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :../src/s2/s2closest_cell_query_base.h469::3320:
:In file included from  /usr/local/clang/include/absl/container/btree_set.h:warning: 66type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/container/internal/btree_container.h:533:3  :469  | warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
t SNP  r533i | n t FA(BcShLa_rI*N TaEbRsNlA_Ln_oXn(niunlsle rotu_topru_ta,s ssitgdn:,: siinzsee_rtt _soirz_ea,s
s      i| g                   ^n
_i/usr/local/clang/include/absl/base/nullability.hm:p241l:,22 :c onote: nexpanded from macro 'absl_nonnull's
t   &241, |  #&d&e,f ifnael saeb,s
l      _| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
nn  u534l | l   _ N o n n u l l 
        |                       ^ 
    true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      | In file included from                                               ^~~~s2/s2point_region.cc
:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de/usr/local/clang/include/absl/container/internal/btree_container.hf:i536n:e24 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_n  o536n | n u l l   _ N o n n u l l 
        |                       ^ 
 false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))In file included from ,s2/s2point_region.cc : 18 :
 In file included from  ../src/s2/s2point_region.h : 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from \/usr/local/clang/include/absl/status/status.h
:      67| :
                                                   ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31/usr/local/clang/include/absl/strings/cord.h::982::
 In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:   3231:
 | #/usr/local/clang/include/absl/strings/str_format.hd:e860f:i43n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_I  N860T | E R NfArLi_eInFd_ tvrouied( iAfb_sslaFtoirsmfaiteFdl,u s.h.(.F)o rimfa_tsSaitniks*f iaebds
l      _| n        ^o
nnull sink,
      |                                           ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2min_distance_targets.cc::24131::
22In file included from :../src/s2/s2closest_cell_query.h :32note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2closest_cell_query_base.h:33  :
241In file included from  | /usr/local/clang/include/absl/container/btree_set.h#:d66e:
f/usr/local/clang/include/absl/container/internal/btree_container.hi:n537e: 3a:b swarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
nonnu  l537l |   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_X(insert_or_assign, insert_or_aIn file included from ss2/s2point_region.ccs:i18g:
nIn file included from _../src/s2/s2point_region.hi:m25p:
lIn file included from ,../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27&:
,In file included from  ../src/s2/s2coder.h&:&23,:
 In file included from t/usr/local/clang/include/absl/status/status.hr:u67e:
,In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/strings/cord.h  :53882 | :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 867 : 60 :   warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue);  
867       | |                    ~~~~~ 
exp/usr/local/clang/include/absl/container/internal/btree_container.hl:i509c:i47t:  Fnote: oexpanded from macro 'ABSL_INTERNAL_X'r
mat  S509i | n k ( s t r _ f o r mAaBtS_Li_nItNeTrEnRaNlA:L:_FAoTrTmRaItBSUiTnEk_ICmApPlT*U RaEbDs_lB_Yn(otnhniusl)l) ,s ) 
        |                                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e\f
i      n| e                                              ^~~~ 
absl_non/usr/local/clang/include/absl/container/internal/btree_container.hn:u537l:l3 :_ Nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:
52      :|                       ^note: 
expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INIn file included from Ts2/s2point_region.ccE:R18N:
In file included from A../src/s2/s2point_region.hL:_25A:
TIn file included from T../src/s2/s1angle.hR:I28B:
UIn file included from T../src/s2/s2point.hE:_27C:
AIn file included from P../src/s2/s2coder.hT:U23R:
EIn file included from D/usr/local/clang/include/absl/status/status.h_:B67Y:
(In file included from t/usr/local/clang/include/absl/status/internal/status_internal.hh:i29s:
)In file included from )/usr/local/clang/include/absl/strings/cord.h): 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 869 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \  
869       | |                                                     ^ 
st/usr/local/clang/include/absl/container/internal/common.hr:_31f:o9r:m anote: tmacro 'ABSL_INTERNAL_IF_true' defined here_
int   e31r | n#adle:f:iFnoer mAaBtSSLi_nIkNITmEpRlN*A La_bIsFl__tnrounen(uilfl_ ssaitniks_f;i
e      d| ,                                       ^ 
../usr/local/clang/include/absl/base/nullability.h.:)241 :i22f:_ snote: aexpanded from macro 'absl_nonnull't
is  f241i | e#dd
e      f| i        ^n
e absl_nonnulIn file included from ls2/s2min_distance_targets.cc :_31N:
oIn file included from n../src/s2/s2closest_cell_query.hn:u32l:
lIn file included from 
../src/s2/s2closest_cell_query_base.h      :| 33                     ^:

In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_saIn file included from ts2/s2polyline_alignment.cci:s17f:
iIn file included from e../src/s2/s2polyline_alignment.hd:,24 :
.In file included from .../src/s2/s2polyline.h.:)29 :
__/usr/local/clang/include/absl/types/span.hV:A212_:A22R:G Swarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_

      |         ^
  212 |   using pointer = T* absl_nullability_unknown;
      | In file included from                      ^s2/s2min_distance_targets.cc
:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:/usr/local/clang/include/absl/base/nullability.h33::
289In file included from :/usr/local/clang/include/absl/container/btree_set.h34::66 :
note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nullability_unknown':
551:79:   289warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
defi  n551e |   a bABsSlL__nIuNlTlEaRbNiAlLi_tXy(_iunnskenrotw_no r__Nauslsli_gunn,s piencsiefrite_do
r      _| a                                 ^s
sign_impl, &&In file included from ,s2/s2polyline_alignment.cc :&17&:
,In file included from  ../src/s2/s2polyline_alignment.hf:a24l:
sIn file included from e../src/s2/s2polyline.h,: 29t:
r/usr/local/clang/include/absl/types/span.hu:e213):;34
:       | warning:                                                                               ^type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h:496  :2139 | :   note: umacro 'ABSL_INTERNAL_X' defined heres
ing   496c | o#ndsetf_ipnoei nAtBeSrL _=I NcToEnRsNtA LT_*X (aFbusnlc_,n uClallalbeiel,i tKyQ_uuanlk,n oMwQnu;a
l      ,|                                   ^K
Va/usr/local/clang/include/absl/base/nullability.hl:u289e:,34 :M Vnote: aexpanded from macro 'absl_nullability_unknown'l
ue  ,289  | .#.d.e)f i n e   a\b
s      l| _        ^n
ullability_unknown _Null_unspecified
      |                                  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_iIn file included from ms2/s2polyline_alignment.ccp:l17,:
 In file included from &../src/s2/s2polyline_alignment.h&:,24 :
&In file included from &../src/s2/s2polyline.h,: 29t:
ru/usr/local/clang/include/absl/types/span.he:,733 :t31r:u ewarning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension];

      |                                                                              ^
  733/usr/local/clang/include/absl/container/internal/btree_container.h | :c496o:n9s:t enote: xmacro 'ABSL_INTERNAL_X' defined herep
r S  p496a | n#<dTe>f iMnaek eASBpSaLn_(ITN*T EaRbNsAlL__nXu(lFluanbcl,e  Cpatlrl eAeB,S LK_QAuTaTlR,I BMUQTuEa_lL,I FKEVTaIlMuEe_,B OMUVNaDl,u
e      ,|                                ^.
..)/usr/local/clang/include/absl/base/nullability.h : 257 : 23 :\ 
note:       expanded from macro 'absl_nullable'| 
        ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:29:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span/usr/local/clang/include/absl/container/internal/btree_container.h<:T553>: 3M:a kwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]S
pan(  T553* |   a bAsBlS_Ln_uIlNlTaEbRlNeA Lb_eXg(iin nAsBeSrLt__AoTrT_RaIsBsUiTgEn_,L IiFnEsTeIrMtE__oBrO_UaNsDs,i
g      n| _                    ^i
mpl/usr/local/clang/include/absl/base/nullability.h,: 257&:&23,:  &note: &expanded from macro 'absl_nullable',
 t  r257u | e#,d etfriunee) ;a
b      s| l  ^_
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509a:b52l:e  note: _expanded from macro 'ABSL_INTERNAL_X'N
ull  a509b | l e 
        |                        ^ 
    ABSL_INTIn file included from Es2/s2polyline_alignment.ccR:N17A:
LIn file included from _../src/s2/s2polyline_alignment.hA:T24T:
RIn file included from I../src/s2/s2polyline.hB:U29T:
E/usr/local/clang/include/absl/types/span.h_:C740A:P21T:U Rwarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]D
_BY  (740t | h i s ) ) ,                        T *   a b s l _ n u l l a\b
l      e|                                                     ^e
nd/usr/local/clang/include/absl/container/internal/common.h): 31n:o9e:x cnote: emacro 'ABSL_INTERNAL_IF_true' defined herep
t {   
31       | | #                    ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n257e: 23A:B Snote: Lexpanded from macro 'absl_nullable'_
IN  T257E | R#NdAeLf_iInFe_ tarbusel(_infu_lslaatbilsef i_eNdu,l l.a.b.l)e 
i      f| _                      ^s
atisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~In file included from 
s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2polyline.h::55329::
3:/usr/local/clang/include/absl/types/span.h:794:8 :warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
511:52:   note: 794expanded from macro 'ABSL_INTERNAL_X' | 
      511T | *   a b s l _ n u l lAaBbSlLe_ IpNtTrE RANBASLL__AATTTTRRIIBBUUTTEE__CLAIPFTEUTRIEMDE__BBYO(UtNhDi,s )s)i)z e _ t   s i z e )   n o e x c e p t   { 
        |         ^\

      | /usr/local/clang/include/absl/base/nullability.h                                                   ^:
257:/usr/local/clang/include/absl/container/internal/common.h23::31 :note: 9expanded from macro 'absl_nullable':
 note:   macro 'ABSL_INTERNAL_IF_true' defined here257
 | #   d31e | f#idneef ianbes lA_BnSuLl_lIaNbTlEeR N_ANLu_lIlFa_btlreu
e      (| i                      ^f
_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:In file included from 31s2/s2polyline_alignment.cc:
:In file included from 17../src/s2/s2closest_cell_query.h:
:In file included from 32../src/s2/s2polyline_alignment.h:
:In file included from 24../src/s2/s2closest_cell_query_base.h:
:In file included from 33../src/s2/s2polyline.h:
:In file included from 29/usr/local/clang/include/absl/container/btree_set.h:
:66/usr/local/clang/include/absl/types/span.h:
:/usr/local/clang/include/absl/container/internal/btree_container.h799::55332::3 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  799 |   S553p | a n <AcBoSnLs_tI NTT>E RMNaAkLe_CXo(nisntsSepratn_(oTr*_ aasbssilg_nn,u lilnasbelret _boerg_ians
s      i| g                               ^n
_i/usr/local/clang/include/absl/base/nullability.hm:p257l:,23 :& &note: ,expanded from macro 'absl_nullable' 
&&  ,257  | t#rdueef,i nter uaeb)s;l
_      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
la/usr/local/clang/include/absl/container/internal/btree_container.hb:l511e: 47_:N unote: lexpanded from macro 'ABSL_INTERNAL_X'l
abl  e511
 |        |                        ^
       In file included from  s2/s2polyline_alignment.ccA:B17S:
LIn file included from _../src/s2/s2polyline_alignment.hI:N24T:
EIn file included from R../src/s2/s2polyline.hN:A29L:
_/usr/local/clang/include/absl/types/span.hA:T801T:R32I:B Uwarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]E
_CA  P801T | U R E D _ B Y ( t h i s ) ) )                            T *   a b s l _ n u l\l
a      b| l                                              ^~~~e
 end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnuIn file included from ls2/s2min_distance_targets.ccl: 31r:
eIn file included from p../src/s2/s2closest_cell_query.h):;32
:
      In file included from | ../src/s2/s2closest_cell_query_base.h                                              ^:
33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:/usr/local/clang/include/absl/base/nullability.h66::
241:/usr/local/clang/include/absl/container/internal/btree_container.h22::583 :3note: :expanded from macro 'absl_nonnull' 
warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #de  f583i | n e  AaBbSsLl__InNoTnEnRuNlAlL __XN(oinnnsuelrlt
_      o| r                     ^_
assign, insert_or_assign_hinIn file included from ts2/s2point_region.cc_:i18m:
pIn file included from l../src/s2/s2point_region.h,: 25&:
&In file included from ,../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27&:
,In file included from 
../src/s2/s2coder.h      :| 23  ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/container/internal/btree_container.h67::
509In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h52::29 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'ABSL_INTERNAL_X':
86:
/usr/local/clang/include/absl/strings/cord_analysis.h:  50509: | 49 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        50A | BsSiLz_eI_NtT EGReNtAMLo_rAeTPTrReIcBiUsTeEM_eCmAoPrTyUURsEaDg_eB(Yc(otnhsits )C)o,r d R e p *   a b s l _ n o n n u l l   r e p ) ;\

            | |                                                 ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/common.h::24131::229::  note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_true' defined here

  241    | 31# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_utlrlu
e      (| i                     ^f
_satisfied, ...) iIn file included from fs2/s2point_region.cc_:s18a:
tIn file included from i../src/s2/s2point_region.hs:f25i:
eIn file included from d../src/s2/s1angle.h
:      28| :
        ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 86s2/s2min_distance_targets.cc:
:31/usr/local/clang/include/absl/strings/cord_analysis.h:
:In file included from 56../src/s2/s2closest_cell_query.h::5632::
 In file included from ../src/s2/s2closest_cell_query_base.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]33
:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66   :
56/usr/local/clang/include/absl/container/internal/btree_container.h | :s583i:z3e:_ twarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]G
etEst  i583m | a t eAdBFSaLi_rISNhTaErReNMAeLm_oXr(yiUnssaegret(_coorn_sats sCiogrnd,R eipn*s earbts_lo_rn_oansnsuilgln _rheipn)t;_
i      m| p                                                       ^l
, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 &  ,241
 |       #| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
fin  e584  | a b s l _ n o n n u l l   _ N o n n utlrlu
e      ,|                       ^t
rue, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:31:
In file included from ../src/s2/s2closest_cell_query.h:32:
In file included from ../src/s2/s2closest_cell_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullaIn file included from bs2/s2predicates.ccl:e18 :
nIn file included from a../src/s2/s2predicates.hm:e55):
;In file included from 
/usr/local/clang/include/absl/flags/flag.h      :| 40                                  ^:

In file included from /usr/local/clang/include/absl/flags/commandlineflag.h/usr/local/clang/include/absl/base/nullability.h::37257:
:23:/usr/local/clang/include/absl/strings/string_view.h :note: 53expanded from macro 'absl_nullable':
54:   257 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efine abs   l53_ | ncuolnlsatbelxep r_ Nsutlrlianbgl_ev
i      e| w                      ^ 
NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
In file included from s2/s2point_region.cc:/usr/local/clang/include/absl/base/nullability.h18::
257In file included from :../src/s2/s2point_region.h23::25 :
note: In file included from expanded from macro 'absl_nullable'../src/s2/s1angle.h
:28:
  In file included from 257../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l549e:
40      :|                        ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2pointutil.cc
:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36In file included from :
s2/s2point_region.ccIn file included from :../src/s2/base/casts.h18::
34In file included from :
../src/s2/s2point_region.hIn file included from :/usr/local/clang/include/absl/log/log.h25::
209In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h28::
20In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h27::
63In file included from :
../src/s2/s2coder.h:23/usr/local/clang/include/absl/log/internal/vlog_config.h:
:In file included from 49/usr/local/clang/include/absl/status/status.h::3767::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from    /usr/local/clang/include/absl/strings/internal/cordz_info.h49: | 31i:
n/usr/local/clang/include/absl/synchronization/mutex.ht: 580R:e34g:i swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
rAn  d580I | n i tbiaaslei_zien(tVeLrongaSli:t:eP*e raTbhsrle_andoSnynnuclhl*  va)b;s
l      _| n                                    ^u
llab/usr/local/clang/include/absl/base/nullability.hl:e241 :W22a:k enote: uexpanded from macro 'absl_nonnull'p
(
        241|  |                                  ^#
de/usr/local/clang/include/absl/base/nullability.hf:i257n:e23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf i_nNeo nanbuslll_
n      u| l                     ^l
able _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2pointutil.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2pointutil.h::2325:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1angle.h::6728:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.h::2925:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/util/coding/coder.h::9436:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/base/casts.h::3134:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/log.h581::20938:
:In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h:warning: 20type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63  :
581 | /usr/local/clang/include/absl/log/internal/vlog_config.h : 63 : 43 :  bwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
e_in   t63e | r n aelx:p:lPiecriTth rceoandsStyenxcphr*  VaLbosglS_intoen(ncuolnls tw )c;h
a      r| *                                     ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   f241) | 
#      d| e                                          ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnullIn file included from  s2/s2pointutil.cch:o18w:
)In file included from ;../src/s2/s2pointutil.h : 25/:
/In file included from  ../src/s2/s1angle.hu:s28e:
dIn file included from  ../src/s2/s2point.hf:o25r:
 In file included from C../src/s2/util/coding/coder.ho:n36d:
VIn file included from a../src/s2/base/casts.hr:-34>:
MIn file included from u/usr/local/clang/include/absl/log/log.ht:e209x:
 In file included from t/usr/local/clang/include/absl/log/internal/log_impl.hr:a20n:
sIn file included from f/usr/local/clang/include/absl/log/absl_vlog_is_on.he:r63
:
      | /usr/local/clang/include/absl/log/internal/vlog_config.h                   ^:
96:60/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
   96   | 241  |  #fdreifeinnde  ianbts ll_nonnull _Nonnull
      |                      ^o
g_internal::RegisteIn file included from rs2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
AndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2pointutil.cc:/usr/local/clang/include/absl/synchronization/mutex.h18::
681In file included from :../src/s2/s2pointutil.h74::25 :
In file included from warning: ../src/s2/s1angle.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
28:
In file included from ../src/s2/s2point.h:25  :
681In file included from  | ../src/s2/util/coding/coder.h : 36e:
xIn file included from p../src/s2/base/casts.hl:i34c:
iIn file included from t/usr/local/clang/include/absl/log/log.h :R209e:
aIn file included from d/usr/local/clang/include/absl/log/internal/log_impl.he:r20M:
uIn file included from t/usr/local/clang/include/absl/log/absl_vlog_is_on.he:x63L:
oc/usr/local/clang/include/absl/log/internal/vlog_config.hk:(119M:u15t:e xwarning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
mu   A119B | S L _cIoNnTsEtR NcAhLa_rA*T TaRbIsBlU_TnEo_nCnAuPlTlU RcEoDn_sBtY (ftihlies_);,

            | |               ^                                                                         ^~~~

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull /usr/local/clang/include/absl/synchronization/mutex.h_:N689o:n35n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2polygon.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2polygon.h | :#29d:
eIn file included from f/usr/local/clang/include/absl/container/flat_hash_map.hi:n43e:
 In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:s19l:
_In file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:n59n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 82_:
NIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h
:      32| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
In file included from s2/s2point_region.cc:/usr/local/clang/include/absl/base/nullability.h18::
289In file included from :../src/s2/s2point_region.h34::25 :
note: In file included from expanded from macro 'absl_nullability_unknown'../src/s2/s1angle.h
:28:
  In file included from 289../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hi:l94i:
tIn file included from y/usr/local/clang/include/absl/strings/internal/cordz_info.h_:u31n:
k/usr/local/clang/include/absl/synchronization/mutex.hn:o896w:n31 :_ Nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l_u  n896s | p e ceixfpileidc
i      t|                                   ^C
ondition(constIn file included from  s2/s2polygon.ccT:*18 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h :o19b:
jIn file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
                              ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:82/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2223::
 In file included from note: /usr/local/clang/include/absl/crc/crc32c.hexpanded from macro 'absl_nonnull':
32:
  In file included from 241/usr/local/clang/include/absl/strings/str_format.h | :#84d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/str_format/bind.hi:n24e:
 In file included from a/usr/local/clang/include/absl/container/inlined_vector.hb:s56l:
_In file included from n/usr/local/clang/include/absl/container/internal/inlined_vector.ho:n35n:
u/usr/local/clang/include/absl/types/span.hl:l213 :_34N:o nwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]u
ll
        | 213                     ^ | 
  using const_pointer = const T* absl_nullability_unknowIn file included from ns2/s2point_region.cc;:
18      :
| In file included from                                  ^../src/s2/s2point_region.h
:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h289::2834:
:In file included from  ../src/s2/s2point.hnote: :expanded from macro 'absl_nullability_unknown'27
:
In file included from ../src/s2/s2coder.h  :28923 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31i:
l/usr/local/clang/include/absl/synchronization/mutex.hi:t922y:_48u:n kwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
wn   _922N | u l ls_tuantsipce cbiofoile dG
u      a| r                                 ^a
nteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeouIn file included from ts2/s2polygon.cc): 18{:

In file included from       ../src/s2/s2polygon.h| :                              ^29
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/flat_hash_map.h::24143::
22In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :note: 19expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h  :24159 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f82i:
nIn file included from e/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :a23b:
sIn file included from l/usr/local/clang/include/absl/crc/crc32c.h_:n32o:
nIn file included from n/usr/local/clang/include/absl/strings/str_format.hu:l84l:
 In file included from _/usr/local/clang/include/absl/strings/internal/str_format/bind.hN:o24n:
nIn file included from u/usr/local/clang/include/absl/container/inlined_vector.hl:l56
:
      In file included from | /usr/local/clang/include/absl/container/internal/inlined_vector.h                     ^:
35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr In file included from Ss2/s2point_region.ccp:a18n:
<In file included from T../src/s2/s2point_region.h>: 25M:
aIn file included from k../src/s2/s1angle.he:S28p:
aIn file included from n../src/s2/s2point.h(:T27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
pIn file included from t/usr/local/clang/include/absl/strings/cord.hr: 94A:
BIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.hL:_31A:
T/usr/local/clang/include/absl/synchronization/mutex.hT:R1069I:B32U:T Ewarning: In file included from _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2pointutil.ccL
:I18F:
E In file included from T1069I../src/s2/s2pointutil.h | M: E25 _:
bBIn file included from OoU../src/s2/s1angle.hoN:Dl28, 
:
W      In file included from a| ../src/s2/s2point.hi                              ^:t
25W:
iIn file included from t/usr/local/clang/include/absl/base/nullability.h../src/s2/util/coding/coder.hh::D25736e::
a23In file included from d:../src/s2/base/casts.hl :inote: 34expanded from macro 'absl_nullable'n:
e
In file included from (/usr/local/clang/include/absl/log/log.hM  :u257t209 | e:
#xIn file included from d*/usr/local/clang/include/absl/log/internal/log_impl.he f:ai20bn:
seIn file included from l /usr/local/clang/include/absl/log/absl_vlog_is_on.h_a:nb63os:
nl/usr/local/clang/include/absl/log/internal/vlog_config.h_n:nuu133ll:ll37a :bml uewarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  _
aNbusl  ll133:a | :ibTniltm eeR
 e      dgei| as                      ^dt
leirnAen)d I{n
i      t| i                               ^a
li/usr/local/clang/include/absl/base/nullability.hz:e241(:V22L:o gnote: Sexpanded from macro 'absl_nonnull'i
te  *241  | a#bdself_innoen naublsll _vn)o;n
n      u| l                                    ^l
 In file included from _s2/s2polygon.cc/usr/local/clang/include/absl/base/nullability.hN::o18241n:
:nIn file included from 22u../src/s2/s2polygon.h:l: l29note: 
:
expanded from macro 'absl_nonnull'      In file included from 
| /usr/local/clang/include/absl/container/flat_hash_map.h                     ^  :
24143 | :
#In file included from d/usr/local/clang/include/absl/container/hash_container_defaults.he:f19i:
nIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :a59b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n82o:
nIn file included from nIn file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hus2/s2point_region.ccl::l2318 :
:
_In file included from In file included from N/usr/local/clang/include/absl/crc/crc32c.ho../src/s2/s2point_region.h:n:32n25u:
:
lIn file included from In file included from l/usr/local/clang/include/absl/strings/str_format.h../src/s2/s1angle.h
::      8428| :
:
                     ^In file included from In file included from 
/usr/local/clang/include/absl/strings/internal/str_format/bind.h../src/s2/s2point.h::2427:
:
In file included from In file included from /usr/local/clang/include/absl/container/inlined_vector.h../src/s2/s2coder.h::5623:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h/usr/local/clang/include/absl/status/status.h::3567:
:
In file included from /usr/local/clang/include/absl/types/span.h/usr/local/clang/include/absl/status/internal/status_internal.h::73929::
21In file included from :/usr/local/clang/include/absl/strings/cord.h :warning: 94type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h739: | 1088S:p35a:n <warning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]>
 Ma k1088e | S p avno(iTd*  Eanbasbll_In file included from ens2/s2pointutil.ccDu:el18bl:
uaIn file included from gb../src/s2/s2pointutil.hlLe:o 25gb:
(eIn file included from cg../src/s2/s1angle.hoi:nn28s :
tAIn file included from  B../src/s2/s2point.hcS:hL25a_:
rAIn file included from T*../src/s2/util/coding/coder.hT :Ra36IbB:
sUIn file included from lT../src/s2/base/casts.h_E:n_34uL:
IlIn file included from Fl/usr/local/clang/include/absl/log/log.hEa:Tb209IlM:
eEIn file included from  _/usr/local/clang/include/absl/log/internal/log_impl.hBn:OaU20mN:
eDIn file included from ,)/usr/local/clang/include/absl/log/absl_vlog_is_on.h
;:      
63|       :
                    ^/usr/local/clang/include/absl/log/internal/vlog_config.h| 
:                                  ^/usr/local/clang/include/absl/base/nullability.h157
::/usr/local/clang/include/absl/base/nullability.h25711:::25723 ::23warning:  :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note:  
note: expanded from macro 'absl_nullable'expanded from macro 'absl_nullable'

  157     | 257257V |  | L##oddgeSefifitinene* e a ababssblsl_l_nn_uunlllluaablblllee a _SbNeultlVelMa ob_dlNueul
le      lL| ia                      ^sb
tlHee
a      d| F                      ^o
rTesIn file included from ts2/s2point_region.ccO:n18l:
yIn file included from (../src/s2/s2point_region.hIn file included from 
:s2/s2polygon.cc      25:| :
18          ^In file included from :

../src/s2/s1angle.hIn file included from :../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h28:::
29257In file included from :
:../src/s2/s2point.hIn file included from 23:/usr/local/clang/include/absl/container/flat_hash_map.h:27: :
43note: In file included from :
expanded from macro 'absl_nullable'../src/s2/s2coder.hIn file included from 
:/usr/local/clang/include/absl/container/hash_container_defaults.h23:  :
19257In file included from :
 | /usr/local/clang/include/absl/status/status.h#In file included from :d/usr/local/clang/include/absl/container/internal/hash_function_defaults.h67e::
f59In file included from i:
/usr/local/clang/include/absl/status/internal/status_internal.hnIn file included from :e/usr/local/clang/include/absl/strings/cord.h 29a::
b82In file included from s:
/usr/local/clang/include/absl/strings/cord.hlIn file included from :_/usr/local/clang/include/absl/crc/internal/crc_cord_state.h94n::
u23In file included from l:
/usr/local/clang/include/absl/strings/internal/cordz_info.hlIn file included from :a/usr/local/clang/include/absl/crc/crc32c.hb31:l:
e/usr/local/clang/include/absl/synchronization/mutex.h32 :_:
1091NIn file included from :u/usr/local/clang/include/absl/strings/str_format.h26l::l84 a:
bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from e

/usr/local/clang/include/absl/strings/internal/str_format/bind.h      :|                        ^241091
:
 | In file included from  /usr/local/clang/include/absl/container/inlined_vector.h :b56In file included from o:
s2/s2pointutil.ccoIn file included from :l/usr/local/clang/include/absl/container/internal/inlined_vector.h18 ::
W35In file included from a:
../src/s2/s2pointutil.hi/usr/local/clang/include/absl/types/span.h:t:25C740:
o:In file included from m21../src/s2/s1angle.hm::o 28nwarning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](In file included from M
../src/s2/s2point.hu:t25e  :
x740In file included from * | ../src/s2/util/coding/coder.h  :a 36b :
s In file included from  l _ n o n n u l l   m u tTe*x ,a
b      s| l                         ^_
nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e  note: eexpanded from macro 'absl_nonnull'n
d)   241n | o#edxecfeipnte  {a
b      s| l                    ^_
no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  _note: Nexpanded from macro 'absl_nullable'o
nn  u257l | l#
d      e| f                     ^i
ne absl_nullable _NullabIn file included from ls2/s2point_region.cce:
18      :
| In file included from                       ^../src/s2/s2point_region.h
:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, siIn file included from zs2/s2point_region.cce:_18t:
 In file included from s../src/s2/s2point_region.hi:z25e:
)In file included from  ../src/s2/s1angle.hn:o28e:
xIn file included from c../src/s2/s2point.he:p27t:
 In file included from {../src/s2/s2coder.h
:      23| :
       ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/status/internal/status_internal.h::2329::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nullable':
94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h257: | 31#:
de/usr/local/clang/include/absl/synchronization/mutex.hf:i1109n:e34 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_nu l1109l | a b leex p_lNiuclilta bMluet
e      x| L                      ^o
ckMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2/s2polygon.cci:n18e:
 In file included from a../src/s2/s2polygon.hb:s29l:
_In file included from n/usr/local/clang/include/absl/container/flat_hash_map.hu:l43l:
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hl:e19 :
_In file included from N/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l59l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e82
:
      In file included from | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h                      ^:
23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | SpaIn file included from ns2/s2point_region.cc<:c18o:
nIn file included from s../src/s2/s2point_region.ht: 25T:
>In file included from  ../src/s2/s1angle.hM:a28k:
eIn file included from C../src/s2/s2point.ho:n27s:
tIn file included from S../src/s2/s2coder.hp:a23n:
(In file included from T/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:a94b:
lIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :b31e:
g/usr/local/clang/include/absl/synchronization/mutex.hi:n1117
:      34| :                               ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:  1117note:  | expanded from macro 'absl_nullable' 
 e  x257p | l#idceifti nMeu taebxsLlo_cnkuMlalyabbel(eM u_tNeuxl*l aabblsel
_      n| u                      ^l
lable mu, cIn file included from os2/s2polygon.ccn:s18t:
 In file included from C../src/s2/s2polygon.ho:n29d:
iIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.hi:o43n:
&In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.hc:o19n:
dIn file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      59| :
                                 ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:82/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2323::
 In file included from note: /usr/local/clang/include/absl/crc/crc32c.hexpanded from macro 'absl_nullable':
32:
In file included from   /usr/local/clang/include/absl/strings/str_format.h257: | 84#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/str_format/bind.hf:i24n:
eIn file included from  /usr/local/clang/include/absl/container/inlined_vector.ha:b56s:
lIn file included from _/usr/local/clang/include/absl/container/internal/inlined_vector.hn:u35l:
l/usr/local/clang/include/absl/types/span.ha:b801l:e32 :_ Nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
lab  l801e | 
        |                        ^ 
                        T* absl_nullable end) nIn file included from os2/s2point_region.cce:x18c:
eIn file included from p../src/s2/s2point_region.ht: 25{:

In file included from       ../src/s2/s1angle.h| :                               ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27257:
:In file included from 23../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l1132l:a10b:l ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
Nul l1132a | b l eM
u      t| e                      ^x
* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
../src/s2/base/casts.h/usr/local/clang/include/absl/synchronization/mutex.h::341153:
:In file included from 39/usr/local/clang/include/absl/log/log.h:: 209:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/log_impl.h
:20:
In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h1153: | 63 :
 e/usr/local/clang/include/absl/log/internal/vlog_config.hx:p158l:i15c:i twarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
elea  s158a | b l e M uVtLeoxgLSoictke(*M uatbesxl*_ naublslla_bnloen nvu)l;l
       m| u              ^)

      |                                       ^/usr/local/clang/include/absl/base/nullability.h
:257:/usr/local/clang/include/absl/base/nullability.h23::241 :22note: :expanded from macro 'absl_nullable' 
note: expanded from macro 'absl_nonnull'
  257 |   #241d | e#fdienfei naeb salb_snlu_lnloanbnluel l_ N_uNlolnanbullel

            | |                       ^                     ^

In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline aIn file included from bs2/s2pointutil.ccs:l18::
:In file included from c../src/s2/s2pointutil.ho:r25d:
_In file included from i../src/s2/s1angle.hn:t28e:
rIn file included from n../src/s2/s2point.ha:l25::
:In file included from C../src/s2/util/coding/coder.ho:r36d:
RIn file included from e../src/s2/base/casts.hp:*34 :
aIn file included from b/usr/local/clang/include/absl/log/log.hs:l209_:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.hl:l22a:
bIn file included from l/usr/local/clang/include/absl/log/internal/log_message.he: 47C:
oIn file included from r/usr/local/clang/include/absl/log/internal/structured_proto.hd::27::
IIn file included from n/usr/local/clang/include/absl/log/internal/proto.hl:i34n:
eR/usr/local/clang/include/absl/types/span.he:p212:::22c:l ewarning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]r
() {  
212       | |                                       ^ 
us/usr/local/clang/include/absl/base/nullability.hi:n257g: 23p:o inote: nexpanded from macro 'absl_nullable't
er   257= |  #Td*e faibnsel _anbuslll_anbuillliatbyl_eu n_kNnuolwlna;b
l      e| 
                     ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _NulIn file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
l_unspecified
      |                                  ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2polygon.ccs2/s2point_region.cc::1818:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2point_region.h::2925:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s1angle.h::4328:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h../src/s2/s2point.h::1927:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/s2coder.h::5923:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::8267:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/status/internal/status_internal.h::2329:
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/strings/cord.h::321666:
:48: /usr/local/clang/include/absl/strings/str_format.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]115
:52:  warning: 1666type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
inline   115C | o r d   C o rcdo:n:sAtd vsatnrc_efAonrdmRaeta_di(nCthearrnIatle:r:aPtaorrs*e daFbosrlm_antoBnansuel*l  aibts,l
_      n| o                                               ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241p:c22):
       note: | expanded from macro 'absl_nonnull'                                                   ^

  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2polygon.cc241: | 18#:
dIn file included from e../src/s2/s2polygon.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.hn:o19n:
nIn file included from u/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:l59 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n82n:
uIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/crc/crc32c.h
:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :s2/s2pointutil.cc23::
18In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :../src/s2/s2pointutil.h32::
25/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 503../src/s2/s1angle.h::2028::
 In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/util/coding/coder.h:  36503:
 | In file included from  ../src/s2/base/casts.h :F34o:
rIn file included from m/usr/local/clang/include/absl/log/log.ha:t209R:
aIn file included from w/usr/local/clang/include/absl/log/internal/log_impl.hS:i22n:
kIn file included from (/usr/local/clang/include/absl/log/internal/log_message.hT:*47 :
aIn file included from b/usr/local/clang/include/absl/log/internal/structured_proto.hs:l27_:
nIn file included from o/usr/local/clang/include/absl/log/internal/proto.hn:n34u:
ll/usr/local/clang/include/absl/types/span.h :r794a:w8):   warning: /type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/
 NOLI  N794T | 
        |                     ^ 
T*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dpetfri nAeB SaLb_sAlT_TnRoInBnUuTlEl_ L_INFoEnTnIuMlEl_
B      O| U                     ^N
D, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/s2point_compression.cc:171:12: warning: unused function 'STtoPiQi' [-Wunused-function]
  171 | inline int STtoPiQi(double s, int level) {
      |            ^~~~~~~~
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2point_region.cc:18:
In file included from ../src/s2/s2point_region.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52:In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: 365 warnings generated.
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64In file included from _s2/s2polyline.cct: 18v:
)In file included from  ../src/s2/s2polyline.h{:
31      :
| In file included from                           ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h241::3722:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_op.h  :24141 | :
#In file included from d/usr/local/clang/include/absl/log/internal/strip.he:f26i:
nIn file included from e/usr/local/clang/include/absl/log/internal/log_message.h :a53b:
sl/usr/local/clang/include/absl/types/source_location.h_:n113o:n19n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Nonn  u113l | l 
        |                       ^ 
 const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnulIn file included from ls2/s2polyline_simplifier.cc :f18i:
lIn file included from e../src/s2/s2polyline_simplifier.h,: 63i:
nIn file included from t../src/s2/s1chord_angle.h :l29i:
nIn file included from e../src/s2/s1angle.h,:
28      :
| In file included from                          ^../src/s2/s2point.h
:24:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/hash/hash.h::24189::
22In file included from :/usr/local/clang/include/absl/hash/internal/hash.h :note: 79expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/base/internal/endian.h  :241250 | :#36d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e ab  s250l | _nionnlniunlel  u_iNnotn1n6u_ltl 
L      o| a                     ^d
16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogIn file included from Ms2/s2polyline_simplifier.cce:s18s:
aIn file included from g../src/s2/s2polyline_simplifier.he:(63c:
oIn file included from n../src/s2/s1chord_angle.hs:t29 :
cIn file included from h../src/s2/s1angle.ha:r28*:
 In file included from a../src/s2/s2point.hb:s24l:
_In file included from n/usr/local/clang/include/absl/hash/hash.ho:n89n:
uIn file included from l/usr/local/clang/include/absl/hash/internal/hash.hl: 79f:
i/usr/local/clang/include/absl/base/internal/endian.hl:e254,: 27i:n twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ine  ,254
 |       i| n                         ^l
in/usr/local/clang/include/absl/base/nullability.he: 241v:o22i:d  note: Sexpanded from macro 'absl_nonnull't
or  e2411 | 6#(dveofiidn*e  aabbssll__nnoonnnnuullll  p_,N ouninnutl1l6
_      t|                       ^v
) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2polyline.ccn:o18n:
nIn file included from u../src/s2/s2polyline.hl:l31 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnullIn file included from  s2/s2polyline_simplifier.ccf:i18l:
eIn file included from ,../src/s2/s2polyline_simplifier.h :i63n:
tIn file included from  ../src/s2/s1chord_angle.hl:i29n:
eIn file included from ,../src/s2/s1angle.h
:      28| :
                         ^In file included from 
../src/s2/s2point.h:24/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/hash/hash.h::2289::
 In file included from note: /usr/local/clang/include/absl/hash/internal/hash.hexpanded from macro 'absl_nonnull':
79:
  /usr/local/clang/include/absl/base/internal/endian.h241: | 258#:d36e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s258l | _innolninnuel lu i_nNto3n2n_utl lL
o      a| d                     ^3
2(const void* absl_nonnullIn file included from  s2/s2polyline.ccp:)18 :
{In file included from 
../src/s2/s2polyline.h      :| 31                                   ^:

In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_op.hd:e41f:
iIn file included from n/usr/local/clang/include/absl/log/internal/strip.he: 26a:
b/usr/local/clang/include/absl/log/internal/log_message.hs:l82_:n26o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _   N82o | n n uLlolg
M      e| s                     ^s
age(const char* absl_nonnull file, int line,
      In file included from s2/s2polyline_simplifier.cc:18:
In file included from | ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2r2rect.cc -o s2/s2r2rect.o
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIn file included from Is2/s2polyline.ccB:In file included from U18s2/s2polyline_simplifier.ccT:
:EIn file included from 18_../src/s2/s2polyline.h:
L:In file included from I31../src/s2/s2polyline_simplifier.hF:
:EIn file included from 63T../src/s2/base/logging.h:
I:In file included from M21../src/s2/s1chord_angle.hE:
:_In file included from 29B/usr/local/clang/include/absl/log/check.h:
O:In file included from U37../src/s2/s1angle.hN:
:DIn file included from  28/usr/local/clang/include/absl/log/internal/check_impl.h{:
: In file included from 21 ../src/s2/s2point.h:
 :In file included from  24/usr/local/clang/include/absl/log/internal/check_op.h :
: In file included from 41 /usr/local/clang/include/absl/hash/hash.h:
 : In file included from 89 /usr/local/clang/include/absl/log/internal/strip.h:
 :In file included from  26/usr/local/clang/include/absl/hash/internal/hash.h :
: 89 :
 /usr/local/clang/include/absl/log/internal/log_message.hIn file included from  :/usr/local/clang/include/absl/numeric/int128.h 319: :41 20:
 :/usr/local/clang/include/absl/types/compare.h  : 78warning:  : type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22 
:   warning:    'enable_if' is a clang extension [-Wgcc-compat] 319
\ | 
           |  78               ^  | 
c o /usr/local/clang/include/absl/container/internal/common.hn :s t31  : w9_c:_h anote: amacro 'ABSL_INTERNAL_IF_true' defined herert
t_rt   *i 31ba | bus#ltd_ee_nf_uil(ln(aeeb nAlaBebS lcLoe_n_IsiNtfT&(E nvR )N=;A=
L _      0I,F|                     ^_"
tOrnul/usr/local/clang/include/absl/base/nullability.hey(: il257fi_:tse23ar:ta ilsnote:  f`iexpanded from macro 'absl_nullable'0e`
d ,  i s257.  | .a#.ld)el foiiwneefd _.sa"a)bt)is)ls _f{niu}el
ld      a
b|       l                     ^e|  
        ^_
Nullable
      |                       ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assigIn file included from ns2/s2polyline.cc,: 18i:
nIn file included from s../src/s2/s2polyline.he:r31t:
_In file included from o../src/s2/base/logging.hr:_21a:
sIn file included from s/usr/local/clang/include/absl/log/check.hi:g37n:
_In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hm:p21l:
,In file included from  /usr/local/clang/include/absl/log/internal/check_op.hc:o41n:
sIn file included from t/usr/local/clang/include/absl/log/internal/strip.h&:,26 :
c/usr/local/clang/include/absl/log/internal/log_message.ho:n321s:t52&:,  warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
ue,
        321|  |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
nl  i149n | e   L o g M e s s a g e &   L o g M etsrsuaeg,e :A:BoSpLe_rIaNtToErR<N<A(Lw_cShIaNrG_LtE*_ AaRbGs(l)_)n;u
l      l| a                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
le /usr/local/clang/include/absl/container/internal/raw_hash_map.hv:)135 :{11
:       | note:                                                    ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:257  :13523 | :   note:  expanded from macro 'absl_nullable' 
     257  |  # dtehfiisn)e) )a bAsBlS_Ln_uAlTlTaRbIlBeU T_EN_uLlIlFaEbTlIeM
E      _| B                      ^O
UND {                              In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
\
      | In file included from           ^~~~s2/s2polyline.cc
:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9In file included from :s2/s2polyline.cc :note: 18macro 'ABSL_INTERNAL_X' defined here:

In file included from ../src/s2/s2polyline.h:31  :
120In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_op.hT:E41R:
NIn file included from A/usr/local/clang/include/absl/log/internal/strip.hL:_26X:
(/usr/local/clang/include/absl/log/internal/log_message.hF:u436n:c36,:  Cwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lee  ,436  | K Q uLaolg,M eVsQsuaagle,D eKbVuaglFuaet,a lV(Vcaolnuset,  cThaairl*,  a.b.s.l)_ n\o
n      n| u        ^l
l file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h  :446151 | : 3 :L owarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]M
essa  g151e | Q u iAeBtSlLy_DIeNbTuEgRFNaAtLa_lX((cionnssetr tc_hoarr_*a sasbisgln_,n oinnnsuelrlt _foirl_ea,s
s      i| g                                          ^n
_i/usr/local/clang/include/absl/base/nullability.hm:p241l:,22 :c onote: nexpanded from macro 'absl_nonnull's
t&  ,241  | &#&d,e ffianles ea,b
s      l| _  ^n
on/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:u133l:l52 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
null  
133       | |                       ^ 
        ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                In file included from  s2/s2polyline.cc : 18 :
 In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from \../src/s2/base/logging.h
:      21| :
                                                   ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h32::219:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:   2632:
 | /usr/local/clang/include/absl/log/internal/log_message.h#:d454e:f38i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL  _454I | N T ELRoNgAMLe_sIsFa_gfeaQlusiee(tilfy_Fsaattails(fcioends,t  .c.h.a)r *_ _aVbAs_lA_RnGoSn_n_u
l      l|          ^f
ile,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2min_distance_targets.cc:: 39note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shape_index_region.h:25  :
241In file included from  | /usr/local/clang/include/absl/container/flat_hash_map.h#:d45e:
f/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:n151e: 3a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
nonn  u151l | l   _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_X(insert_or_assign, insIn file included from es2/s2polyline.ccr:t18_:
oIn file included from r../src/s2/s2polyline.h_:a31s:
sIn file included from i../src/s2/base/logging.hg:n21_:
iIn file included from m/usr/local/clang/include/absl/log/check.hp:l37,:
 In file included from c/usr/local/clang/include/absl/log/internal/check_impl.ho:n21s:
tIn file included from &/usr/local/clang/include/absl/log/internal/check_op.h,: 41&:
&In file included from ,/usr/local/clang/include/absl/log/internal/strip.h :f26a:
l/usr/local/clang/include/absl/log/internal/log_message.hs:e456,:
38      :|    ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:135:16:   456note:  | expanded from macro 'ABSL_INTERNAL_X' 
 Lo  g135M | e s s a g e Q u i e ttlhyiFsa)t)a)l (AcBoSnLs_tA TcThRaIrB*U TaEb_sLlI_FnEoTnInMuEl_lB OfUiNlDe ,{  i n t   l i n e , 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #\d
e      f| i               ^n
e /usr/local/clang/include/absl/container/internal/common.ha:b32s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_false' defined heren
ull    32_ | N#odnenfuilnle
       A| B                     ^S
L_INTERNAIn file included from Ls2/s2polyline.cc_:I18F:
_In file included from f../src/s2/s2polyline.ha:l31s:
eIn file included from (../src/s2/base/logging.hi:f21_:
sIn file included from a/usr/local/clang/include/absl/log/check.ht:i37s:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.he:d21,:
 In file included from ./usr/local/clang/include/absl/log/internal/check_op.h.:.41):
 In file included from _/usr/local/clang/include/absl/log/internal/strip.h_:V26A:
_/usr/local/clang/include/absl/log/internal/log_message.hA:R457G:S38_:_ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]        ^

  457 |                          const char* aIn file included from bs2/s2min_distance_targets.ccs:l39_:
nIn file included from o../src/s2/s2shape_index_region.hn:n25u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h :f45a:
i/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:u154r:e51_:m swarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])

      |                                      ^  
154 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f itnreu ea,b sAlB_SnLo_nInNuTlElR N_ANLo_nSnIuNlGlL
E      _| A                     ^R
G());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2/s2polyline.cc::15318::
3In file included from :../src/s2/s2polyline.h :warning: 31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h  :15337 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
L_/usr/local/clang/include/absl/log/internal/check_op.hI:N180T:E42R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
X(inse  r180t | _AoBrS_La_sAsTiTgRnI,B UiTnEs_ePrUtR_Eo_rF_UaNsCsTiIgOnN_ icmopnls,t  ccohnasrt*& ,a b&s&l,_ nfoanlnsuel,l
       M| a  ^k
eC/usr/local/clang/include/absl/container/internal/raw_hash_map.hh:e133c:k52F:a inote: lexpanded from macro 'ABSL_INTERNAL_X'S
tri  n133g | ( 
        |                                           ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eAfTiTnReI BaUbTsEl__CnAoPnTnUuRlElD __BNYo(ntnhuilsl)
)      ,|                       ^ 
                In file included from  s2/s2polyline.cc : 18 :
 In file included from  ../src/s2/s2polyline.h : 31\:

In file included from       ../src/s2/base/logging.h| :                                                   ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/container/internal/common.h37::
32In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h9::21 :
note: /usr/local/clang/include/absl/log/internal/check_op.hmacro 'ABSL_INTERNAL_IF_false' defined here:
181:25:    32warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n181e |   A B S Lc_oInNsTtE RaNbAsLl_:I:FS_tfaatlusse*( iafb_ssla_tniosnfniueldl,  s.t.a.t)u s_,_ VcAo_nAsRtG Sc_h_a
r      *|          ^a
bsl_nonnull pIn file included from rs2/s2min_distance_targets.cce:f39i:
xIn file included from )../src/s2/s2shape_index_region.h;:
25      :
| In file included from                         ^/usr/local/clang/include/absl/container/flat_hash_map.h
:45:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::241153::223::  note: warning: expanded from macro 'absl_nonnull'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  241 |   #153d | e f iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( i_nNsoenrntu_lolr
_      a| s                     ^s
ign, insert_or_aIn file included from ss2/s2polyline.ccs:i18g:
nIn file included from _../src/s2/s2polyline.hi:m31p:
lIn file included from ,../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht:&37,:
 In file included from &/usr/local/clang/include/absl/log/internal/check_impl.h&:,21 :
f/usr/local/clang/include/absl/log/internal/check_op.ha:l181s:e58,:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  ^

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:  135181: | 16 :   note:  expanded from macro 'ABSL_INTERNAL_X'c
ons  t135  | a b s l : : S t a t utsh*i sa)b)s)l _AnBoSnLn_uAlTlT RsItBaUtTuEs_,L IcFoEnTsItM Ec_hBaOrU*N Da b{s l _ n o n n u l l   p r e f i x ) ; 
        |                                                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :\ 
      note: | expanded from macro 'absl_nonnull'               ^

  /usr/local/clang/include/absl/container/internal/common.h241: | 31#:d9e:f inote: nmacro 'ABSL_INTERNAL_IF_true' defined heree
 a   b31s | l#_dneofninnuel lA B_SNLo_nInNuTlElR
N      A| L                     ^_
IF_true(if_satisfied, ...) ifIn file included from _s2/s2polyline.ccs:a18t:
iIn file included from s../src/s2/s2polyline.hf:i31e:
dIn file included from 
../src/s2/base/logging.h      :| 21        ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 189s2/s2min_distance_targets.cc | :i39n:
lIn file included from i../src/s2/s2shape_index_region.hn:e25 :
cIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:s45t:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b153s:l3:::S twarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
us* ab  s153l | _ n oAnBnSuLl_lI NATsESRtNaAtLu_sX((cionnssetr ta_bosrl_:a:sSstiagtnu,s &i nss)e r{t
_      o| r                           ^_
as/usr/local/clang/include/absl/base/nullability.hs:i241g:n22_:i mnote: pexpanded from macro 'absl_nonnull'l
,   c241o | n#sdte&f,i n&e& ,a bfsall_sneo,n
n      u| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
 _  N154o | n n u l l 
        |                       ^ 
         true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :s2/s2polyline.cc135::1811:
:In file included from  ../src/s2/s2polyline.hnote: :expanded from macro 'ABSL_INTERNAL_X'31
:
In file included from ../src/s2/base/logging.h:21  :
135In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h :t193h:i21s:) )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _193A | TcToRnIsBtU TaEb_sLlI:F:ESTtIaMtEu_sB*O UaNbDs l{_ n o n n u l l   A s S t a t u s ( c o n s t   a b s l : : S\t
a      t| u          ^~~~s
Or<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, In file included from .s2/s2polyline.cc.:.18):
 In file included from i../src/s2/s2polyline.hf:_31s:
aIn file included from t../src/s2/base/logging.hi:s21f:
iIn file included from e/usr/local/clang/include/absl/log/check.hd:
37      :
| In file included from         ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   conIn file included from ss2/s2min_distance_targets.cct: 39c:
hIn file included from a../src/s2/s2shape_index_region.hr:*25 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l45_:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n155n:u3l:l  warning: N'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
wStrin  g155( | ) ; 
A      B| S              ^L
_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Xexpanded from macro 'absl_nonnull'(
in  s241e | r#td_eofri_naes saibgsnl,_ nionnsneurltl_ o_rN_oansnsuilgln
_      i| m                     ^p
l, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                         In file included from  s2/s2polyline.cc\:
18      :
| In file included from                                               ^~~~../src/s2/s2polyline.h
:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h37::
155In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h3::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
226:/usr/local/clang/include/absl/container/internal/raw_hash_map.h59::135 :16warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  226 |   v135o | i d   M a k e C h e ctkhOipsV)a)l)u eASBtSrLi_nAgT(TsRtIdB:U:ToEs_tLrIeFaEmT&I MoEs_,B OcUoNnDs t{  v o i d *   a b s l _ n u l l a b l e   p ) ; 
        |                                                            ^ 
  \/usr/local/clang/include/absl/base/nullability.h
:      257| :               ^23
: /usr/local/clang/include/absl/container/internal/common.hnote: :expanded from macro 'absl_nullable'32
:9:   257note:  | macro 'ABSL_INTERNAL_IF_false' defined here#
def   i32n | e# daebfsiln_en uAlBlSaLb_lIeN T_ENRuNlAlLa_bIlFe_
f      a| l                      ^s
e(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGIn file included from Ls2/s2polyline.ccE:_18A:
RIn file included from G../src/s2/s2polyline.h(:)31):
;In file included from 
../src/s2/base/logging.h      :| 21                                                  ^:

In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::37120:
:In file included from 9/usr/local/clang/include/absl/log/internal/check_impl.h:: 21note: :
macro 'ABSL_INTERNAL_X' defined here
/usr/local/clang/include/absl/log/internal/check_op.h:276:  13120: |  #warning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
fin  e276  | AcBoSnLs_tI NvToEiRdN*A La_bXs(lF_unnucl,l aCballel eoep,e rKaQtuoarl<,< (VsQtuda:l:,o sKtVraelaume&,, 
V      V| a            ^l
ue/usr/local/clang/include/absl/base/nullability.h,: 257T:a23i:l ,note:  expanded from macro 'absl_nullable'.
..  )257  | \#
d      e| f        ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,i
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
e a  b158s | l _ n u l l a b l e   _ N u l l a b lter
u      e| ,                      ^ 
ABSL_INTERNAL_SINGLE_ARG(In file included from )s2/s2polyline.cc):;18
:
      In file included from | ../src/s2/s2polyline.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
31:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::21133:
:In file included from 47/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  /usr/local/clang/include/absl/log/internal/check_op.h133: | 277 : 50 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
   AB  S277L | _ I N T E R N A L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) )c,o n s t   v o i d *   a b s l _ n u l l a b l e   v a\l
u      e| )                                              ^~~~;

      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h257::15723::3 :note:  expanded from macro 'absl_nullable'
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
257 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h#:d135e:f16i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bsl  _135n | u l l a b l e   _ N utlhliasb)l)e)
       A| B                      ^S
L_ATTRIBUTE_LIFETIME_BOUND {  In file included from  s2/s2polyline.cc : 18 :
 In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 278 :\13
:       | warning:                ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/common.h:31  :2789 | :c onote: nmacro 'ABSL_INTERNAL_IF_true' defined heres
t v   o31i | d#*d eafbisnle_ nAuBlSlLa_bIlNeT EoRpNeArLa_tIoFr_<t<r(uset(di:f:_ossattriesafmi&e,d ,s t.d.:.:)n uilfl_pstart_its)f;i
e      d| 
            ^      
|         ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2min_distance_targets.cc :a39b:
sIn file included from l../src/s2/s2shape_index_region.h_:n25u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.ha:b45l:
e/usr/local/clang/include/absl/container/internal/raw_hash_map.h :_157N:u3l:l awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
e
      |                       ^
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true,In file included from  s2/s2polyline.ccA:B18S:
LIn file included from _../src/s2/s2polyline.hI:N31T:
EIn file included from R../src/s2/base/logging.hN:A21L:
_In file included from S/usr/local/clang/include/absl/log/check.hI:N37G:
LIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.h_:A21R:
G/usr/local/clang/include/absl/log/internal/check_op.h(:)292):;13
:       | warning:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135  :29211 | :c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t c  h135a | r *   a b s l _ n o ntnhuilsl) )o)p eArBaStLo_rA<T<T(RsItBdU:T:Eb_aLsIiFcE_ToIsMtEr_eBaOmU<NcDh a{r ,   T r a i t s > & , 
        |              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241\ | 
#      d| e          ^~~~f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSsL_IlN_TnEoRnNnAuLl_lI)F;_
f      a| l                                                ^s
e(if/usr/local/clang/include/absl/base/nullability.h_:s241a:t22i:s fnote: iexpanded from macro 'absl_nonnull'e
d,   .241. | .#)d e_f_iVnAe_ AaRbGsSl___n
o      n| n        ^u
ll _Nonnull
In file included from       s2/s2min_distance_targets.cc| :                     ^39
:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(In file included from is2/s2polyline.ccn:s18e:
rIn file included from t../src/s2/s2polyline.h_:o31r:
_In file included from a../src/s2/base/logging.hs:s21i:
gIn file included from n/usr/local/clang/include/absl/log/check.h,: 37i:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.he:r21t:
_/usr/local/clang/include/absl/log/internal/check_op.ho:r295_:a20s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
_imp  l295, |  c&o&n,s tc osnisgtn&e,d  fcahlasre*, 
a      b| s  ^l
_n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n135n:u16l:l  note: oexpanded from macro 'ABSL_INTERNAL_X'p
era  t135o | r < < ( s t d : : b atshiics_)o)s)t rAeBaSmL<_cAhTaTrR,I BTUrTaEi_tLsI>F&E,T
I      M| E                   ^_
BO/usr/local/clang/include/absl/base/nullability.hU:N241D: 22{:   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _\N
o      n| n               ^u
ll/usr/local/clang/include/absl/container/internal/common.h
:      32| :                     ^9
: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSLIn file included from _s2/s2polyline.ccI:N18T:
EIn file included from R../src/s2/s2polyline.hN:A31L:
_In file included from I../src/s2/base/logging.hF:_21f:
aIn file included from l/usr/local/clang/include/absl/log/check.hs:e37(:
iIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.h_:s21a:
t/usr/local/clang/include/absl/log/internal/check_op.hi:s296f:i63e:d ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].
..)   _296_ | V A _ A R G S _ _ 
        |          ^ 
                              const signed char* aIn file included from bs2/s2min_distance_targets.ccs:l39_:
nIn file included from o../src/s2/s2shape_index_region.hn:n25u:
lIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h):;45
:
      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                                                              ^163
:51:/usr/local/clang/include/absl/base/nullability.h :warning: 241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
22: note:   expanded from macro 'absl_nonnull'163
 |     241  |  # d e f i n e   a b s l _ n otnrnuuel,l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: In file included from note: s2/s2polyline.ccmacro 'ABSL_INTERNAL_X' defined here:
18:
In file included from ../src/s2/s2polyline.h  :12031 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:I21N:
T/usr/local/clang/include/absl/log/internal/check_op.hE:R298N:A22L:_ Xwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
unc,   298C | aclolneset,  uKnQsuiagln,e dV Qcuhaalr,*  KaVbasllu_en,o nVnVualllu eo,p eTraaitlo,r <.<.(.s)t d\:
:      b| a        ^s
ic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                             /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 162 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       162  |     cAoBnSsLt_ IuNnTsEiRgNnAeLd_ Xc(hianrs*e ratb_solr__nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from In file included from s2/s2polyline_simplifier.ccs2/s2polygon.cc::1818:
:
In file included from In file included from ../src/s2/s2polyline_simplifier.h../src/s2/s2polygon.h::6329:
:
In file included from In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/container/flat_hash_map.h::2943:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/hash_container_defaults.h::2819:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::2459:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/strings/cord.h::8994:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::9031:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/strings/string_view.h::49953::3554::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  499 |     53  | vcooinds tEenxapbrl esDterbiunggL_ovgi(ecwo nNsutl lcShaafre*S tarbisnlg_Vniuelwl(acbolnes tn acmhea)r;*
       a| b                                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u257l:l23a:b lnote: eexpanded from macro 'absl_nullable' 
p)   257{ | 
#      d| e                                                     ^f
ine/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: uexpanded from macro 'absl_nullable'l
la  b257l | e# d_eNfuilnlea balbes
l      _| n                      ^u
llable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncreamsesnitgSny,n cihnSseemr(tM_uotre_xa*s saibgsnl__inmopnln,u l&l& ,m uc,o
n      s| t                                       ^&
, /usr/local/clang/include/absl/base/nullability.hf:a241l:s22e:, 
note:       expanded from macro 'absl_nonnull'| 
  ^
  241 | #/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:e133f:i52n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_no  n133n | u l l   _ N o n n u lAlB
S      L| _                     ^I
NTERNAL_ATTRIBIn file included from Us2/s2polygon.ccT:E18_:
CIn file included from A../src/s2/s2polygon.hP:T29U:
RIn file included from E/usr/local/clang/include/absl/container/flat_hash_map.hD:_43B:
YIn file included from (/usr/local/clang/include/absl/container/hash_container_defaults.ht:h19i:
sIn file included from )/usr/local/clang/include/absl/container/internal/hash_function_defaults.h):,59 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 550 : 64 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      550  | \ 
        |                                                     ^ 
    /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
       32  |  # d e f i n e   AbBaSsLe__IiNnTtEeRrNnAaLl_:I:FP_efraTlhsree(aidfS_ysnacthi*s faibesdl,_ n.o.n.n)u l_l_ VwA)_;A
R      G| S                                                               ^_
_
/usr/local/clang/include/absl/base/nullability.h      :| 241        ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2min_distance_targets.cc_:n39o:
nIn file included from n../src/s2/s2shape_index_region.hu:l25l:
 In file included from _/usr/local/clang/include/absl/container/flat_hash_map.hN:o45n:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l162l:
3      :|                       ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERIn file included from Ns2/s2polygon.ccA:L18_:
XIn file included from (../src/s2/s2polygon.hi:n29s:
eIn file included from r/usr/local/clang/include/absl/container/flat_hash_map.htIn file included from :_s2/s2polyline.cc43o:r:
18_In file included from :
a/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from s:../src/s2/s2polyline.hs19i::
g31In file included from n:
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h,In file included from : ../src/s2/base/logging.h59i::
n21In file included from s:
/usr/local/clang/include/absl/strings/cord.heIn file included from :r/usr/local/clang/include/absl/log/check.ht94:_:
o37In file included from r:
/usr/local/clang/include/absl/strings/internal/cordz_info.h_In file included from :a/usr/local/clang/include/absl/log/internal/check_impl.h31s::
s21/usr/local/clang/include/absl/synchronization/mutex.hi:
:g/usr/local/clang/include/absl/log/internal/check_op.h551n::_42840i:m:44p :lwarning:  ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning:  
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
&  551, |   c   o428sn | tsAta&B,t SifLca_ AlbTosTeo,RlI
 BD      U| e  ^TcE
r_eRmE/usr/local/clang/include/absl/container/internal/raw_hash_map.heT:nU135tR:SNy16Sn_:cNh OSnote: Nexpanded from macro 'ABSL_INTERNAL_X'eN
mU(LMLu   tc135eo | xn *s  t a  bc shla _r n* o  n atnbuhslills_) )n)m ounA,nB
uS      lL| l_                                       ^ A
MTa/usr/local/clang/include/absl/base/nullability.hTk:241ReI:BCU22hT:Ee _cnote: kLexpanded from macro 'absl_nonnull'IOF
pES  TtI241rM | i#En_dBgOe(Uf
Ni      Dn|  e                                           ^{ 
 a /usr/local/clang/include/absl/base/nullability.h b : s241 l : _22 n:o  n note: nexpanded from macro 'absl_nonnull' u
l l    241_  | N# od ne nf u i n l el   
 a       b |  s                      ^l\
_
n      o| n               ^n
ul/usr/local/clang/include/absl/container/internal/common.hlIn file included from : s2/s2polygon.cc_31:N:18o9:
n:In file included from n ../src/s2/s2polygon.hunote: :lmacro 'ABSL_INTERNAL_IF_true' defined here29l
:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h   | :                     ^3143
 | :
#In file included from d/usr/local/clang/include/absl/container/hash_container_defaults.he:f19i:
nIn file included from In file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs2/s2polyline.cc ::A5918B:
:
SIn file included from In file included from L/usr/local/clang/include/absl/strings/cord.h../src/s2/s2polyline.h_::I9431N:
:
TIn file included from In file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/base/logging.hR::N3121A:
:
/usr/local/clang/include/absl/synchronization/mutex.hLIn file included from :_/usr/local/clang/include/absl/log/check.h552I::F3764_:
t:In file included from r u/usr/local/clang/include/absl/log/internal/check_impl.hewarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](21
i:
f/usr/local/clang/include/absl/log/internal/check_op.h  _:552s429 | a: t31 i: s f iwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
d ,    . .429.  | )      i f  _ T s1a  t v i1 ,s  f T i2e   dv 2
 ,         | c o        ^ n
 sbta sceh_airn*t earbnsall_:n:oPneIn file included from nrus2/s2min_distance_targets.ccTl:hl39r e:
eaIn file included from xdp../src/s2/s2shape_index_region.hSr:ty25enx:
ctIn file included from h)/usr/local/clang/include/absl/container/flat_hash_map.h* : A45aB:
bS/usr/local/clang/include/absl/container/internal/raw_hash_map.hsLl:__A162nT:oTn3RnI:uB lUwarning: lT 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]Ew_
,N
O      I| N                                                               ^L  
I162N/usr/local/clang/include/absl/base/nullability.h | E :; 241
A:      B22| S:L                              ^ _
note: Iexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.hN
:T  241E241R: | N22#A:dL e_note: fexpanded from macro 'absl_nonnull'Xi
(n  ie241n  | sa#bedsretl_fo_ri_nneao nsanbsusillgl_n n,_o Nnoinnnunsluelrl tl_
_No      or| _na                     ^ns
uslilg
n      _| i                     ^m
pl, &&, conIn file included from ss2/s2polygon.cct:&18,:
 In file included from f../src/s2/s2polygon.ha:l29s:
eIn file included from ,/usr/local/clang/include/absl/container/flat_hash_map.h
:      43In file included from | :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s2/s2polyline.ccIn file included from 
:/usr/local/clang/include/absl/container/hash_container_defaults.h18::
  19In file included from 163:
../src/s2/s2polyline.h | In file included from : /usr/local/clang/include/absl/container/internal/hash_function_defaults.h31 ::
 59In file included from  :
../src/s2/base/logging.h In file included from : /usr/local/clang/include/absl/strings/cord.h21 ::
 94In file included from  :
/usr/local/clang/include/absl/log/check.h In file included from : /usr/local/clang/include/absl/strings/internal/cordz_info.h37 ::
 31In file included from  :
 /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/synchronization/mutex.h : :21 556:
t:/usr/local/clang/include/absl/log/internal/check_op.hr38:u:432e :,13warning:  :Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L

_IN    T556432E |  |  Rc NovnAosiLtd _ cSLhIoacNrkG*SL lEaob_wsLAlRoG_on(po)(n)Sn;yun
lcl      h W| M                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~aak
ietCP/usr/local/clang/include/absl/container/internal/raw_hash_map.hhae:rc135akm:Osp11*S :ta rbnote: isexpanded from macro 'ABSL_INTERNAL_X'nlg_
(nTo1n   n135vu1 | l          this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQl waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow ab,sl_no nTn2u lvl2 ,h
o      w| ,            ^

      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 :note:  expanded from macro 'absl_nonnull'
note: expanded from macro 'absl_nonnull'  
241 | #d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.hs2/s2polyline.cc::4318:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h../src/s2/s2polyline.h::1931:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/base/logging.h::5921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::9437:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::559433::4656::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  559   | 433  |                                                       c o n s t   C o n d i t i o n *  caobnsslt_ ncuhlalra*b laeb sclo_nndo,n
n      u| l                                             ^l
 e/usr/local/clang/include/absl/base/nullability.hx:p257r:t23e:x tnote: )expanded from macro 'absl_nullable' 
{
        257|  |                                                        ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#adbelfei n_eN ualblsalb_lneo
n      n| u                      ^l
l _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, cuoanls,t  KCVoanlduiet,i oVnV*a laubes,l _Tnauilll,a b.l.e. )c o\n
d      ,| 
        ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from In file included from s2/s2polygon.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/log/check.h::2937:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/log/internal/check_impl.h::4321:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/hash_container_defaults.h::45119::
1In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :warning: 59type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 451/usr/local/clang/include/absl/strings/internal/cordz_info.h | :A31B:
S/usr/local/clang/include/absl/synchronization/mutex.hL:_562L:O58G:_ Iwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERN  A562L | _ D EvFoIiNdE _LMoAcKkES_lCoHwE(CMKu_HOoPw_ SaTbR/usr/local/clang/include/absl/container/internal/raw_hash_map.hsI:lN166G_:_n3EoX:nT nEwarning: uRpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]lN
l( bho  oo166wl | ),;  
c o      An| Bs^StL
 _CIo/usr/local/clang/include/absl/log/internal/check_op.hNn:TdE449iR:tNi31Ao:Ln _*Xnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'(ai
bnssle  _rn449tu_ | lo lr a_beaxlstees rincg onnt,de m,ip
nl      sa| et                                                         ^re
t /usr/local/clang/include/absl/base/nullability.h_c:oo257rn:_s23at:s  scnote: hiexpanded from macro 'absl_nullable'agr
n*  _ 257ia | bm#spdlle_,fn i&on&nen,  ualcbolsnl sM_atn&ku,le ltCarbhuelece,k 
O_      Np| u  ^Sl
tlr/usr/local/clang/include/absl/container/internal/raw_hash_map.hai:nb133gl:(e 52
 :        | \note:                       ^expanded from macro 'ABSL_INTERNAL_X'


      |                               ^
  133 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 A  B241S | L#In file included from _ds2/s2polygon.ccIe:fNi18nT:
eEIn file included from R ../src/s2/s2polygon.hNa:Ab29Ls:
_lIn file included from A_/usr/local/clang/include/absl/container/flat_hash_map.hTnTo:Rn43In:
BuIn file included from Ul/usr/local/clang/include/absl/container/hash_container_defaults.hTl:E 19__N:
oCnIn file included from nA/usr/local/clang/include/absl/container/internal/hash_function_defaults.huP:lT59lU:
R
In file included from E      /usr/local/clang/include/absl/strings/cord.hD| :_                     ^94B
:
YIn file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.ht:h31i:
s/usr/local/clang/include/absl/synchronization/mutex.h):)In file included from 565,s2/s2polyline.cc: :36 18: :
  In file included from warning:  ../src/s2/s2polyline.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :
 31 :
   In file included from  565 ../src/s2/base/logging.h |    :  v21 o:
 i In file included from d  /usr/local/clang/include/absl/log/check.h U :n 37l o:
 cIn file included from k S/usr/local/clang/include/absl/log/internal/check_impl.h l o:\w
21(      S:
| /usr/local/clang/include/absl/log/internal/check_op.hy                                                   ^n:
c451:1: hwarning: Wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/common.ha
:i31t/usr/local/clang/include/absl/log/internal/check_op.h:P:9a450:r: a25note: mmacro 'ABSL_INTERNAL_IF_true' defined here:s
*     note: a31bexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | s
#ld  _en450fu | il nl ea  bA lB eS  xLw,_a IxiN,tTp E)cR oNnAABsLSt_L I_FcA_ThtTraRuIreB*(U iTafEb__ssClaOt_LinD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nsfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   trueo, AnBnSuLl_lI)N
T      E| R                        ^N
AL_S/usr/local/clang/include/absl/base/nullability.hI:N241G:L22E:_ Anote: Rexpanded from macro 'absl_nonnull'G
())  ;241
 |       #| d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
fin/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 135a:b11s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'o
nnu  l135l |   _ N o n n u l l 
       t| h                     ^i
s))) ABSL_ATTRIBUTE_LIFETIME_BOUND {       In file included from  s2/s2polyline.cc : 18 :
 In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21\:

      /usr/local/clang/include/absl/log/internal/check_op.h| :          ^~~~452
:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
/usr/local/clang/include/absl/container/internal/raw_hash_map.h      :| 170                              ^:
45:/usr/local/clang/include/absl/base/nullability.h :warning: 241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
22:   note: 170expanded from macro 'absl_nonnull' | 
     241  |  # d e f i n e   a b s l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lSlI
N      G| L                     ^E
_ARG());
      |                                             ^In file included from 
s2/s2polyline.cc:18/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 120../src/s2/s2polyline.h::931::
 In file included from note: ../src/s2/base/logging.hmacro 'ABSL_INTERNAL_X' defined here:
21:
In file included from /usr/local/clang/include/absl/log/check.h  :12037 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 452A:B1S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TE/usr/local/clang/include/absl/log/internal/check_op.hR:N450A:L25_:X (note: Fexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
nc  ,450  | C a l l e e ,x ,K Qxu,a lc,o nVsQtu aclh,a rK*V aalbusel,_ nVoVnanluulel,) 
T      a| i                        ^l
, /usr/local/clang/include/absl/base/nullability.h.:.241.:)22 :\ 
note:       expanded from macro 'absl_nonnull'| 
        ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:169:3  :449  | warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
exte  r169n |   t eAmBpSlLa_tIeN TcEoRnNsAtL _cXh(airn*s earbts_lo_rn_oansnsuilgln ,M aiknesCehretc_koOrp_Satsrsiinggn(_ i m p\l
,       | &                              ^&
, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22f:a lnote: sexpanded from macro 'absl_nonnull'e
,   f241a | l#sdee,f
i      n| e  ^ 
ab/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l133_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N133o | nnull
      | u                     ^l
lable /*igIn file included from ns2/s2polyline.cco:r18e:
dIn file included from *../src/s2/s2polyline.h/:)31 :
{In file included from }../src/s2/base/logging.h
:      21| :
                                       ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::25721::
23/usr/local/clang/include/absl/log/internal/check_op.h:: 453note: :expanded from macro 'absl_nullable'1
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d450e:f25i:n enote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
bs  l450_ | n u l l a b lxe,  _xN,u lcloanbslte 
c      h| a                      ^r
* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
          ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      | In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBoUTnEn_uClAlP T_UNRoEnDn_uBlYl(
t      h| i                     ^s
))
      |                                                                          ^~~~
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | /usr/local/clang/include/absl/synchronization/mutex.hA:B718S:L35_:L Owarning: Gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT  E718R | N A Le_xDpElFiIcNiEt_ MWArKiEt_eCrHMEuCtKe_xOLPo_cSkT(RMIuNtGe_xE*X TaEbRsNl(_
n      o| n^n
ull/usr/local/clang/include/absl/log/internal/check_op.h :m450u:)25
:       | note:                                   ^expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  /usr/local/clang/include/absl/base/nullability.h450: | 241 : 22 :   note:  expanded from macro 'absl_nonnull'x
,   x241, |  #cdoenfsitn ec haabrs*l _anbosnln_unloln n_uNloln)n
u      l| l                        ^

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 | In file included from  s2/s2polyline.cc :e18x:
pIn file included from l../src/s2/s2polyline.hi:c31i:
tIn file included from  ../src/s2/base/logging.hW:r21i:
tIn file included from e/usr/local/clang/include/absl/log/check.hr:M37u:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hx:L21o:
c/usr/local/clang/include/absl/log/internal/check_op.hk:(463M:u1t:e xwarning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
mu   A463B | SALB_SILN_TLEORGN_AILN_TAETRTNRAILB_UDTEEF_ICNAEP_TMUARKEED__CBHYE(CtKh_iOsP)_,S
T      R| I                                                                         ^~~~N
G_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern /usr/local/clang/include/absl/synchronization/mutex.ht:e731m:p35l:a twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t731  | c h aerx*p laibcsilt_ nWornintuelrlM uMtaekxeLCohcekc(kMOuptSetxr*i nagb(s l _ n\o
n      n| u                              ^l
l /usr/local/clang/include/absl/base/nullability.hm:u241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 C  o241n | d#idteifoinn&e  caobnsdl)_
n      o| n                                  ^n
ull/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #defIn file included from is2/s2polyline.ccn:e18 :
aIn file included from b../src/s2/s2polyline.hs:l31_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h
:      464| :26                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRINGIn file included from _s2/s2polygon.ccE:X18T:
EIn file included from R../src/s2/s2polygon.hN:(29
:
      In file included from | /usr/local/clang/include/absl/container/flat_hash_map.h^:
43:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/hash_container_defaults.h::45019::
25In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :59note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94  :
450In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 801x:,20 :x ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst   801c | h a rC*o nadbistli_onno(nbnouolll )(
*      a| b                        ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'f
un  c241) | (#vdoeifdi*n ea basbls_ln_unlolnanbuillli t_yN_ounnnkunlolw
n      )| ,                     ^

      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2polyline.ccl:l18 :
_In file included from N../src/s2/s2polyline.ho:n31n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2polygon.cc::46518::
1In file included from :../src/s2/s2polygon.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from   /usr/local/clang/include/absl/container/hash_container_defaults.h465: | 19A:
BIn file included from S/usr/local/clang/include/absl/container/internal/hash_function_defaults.hL:_59L:
OIn file included from G/usr/local/clang/include/absl/strings/cord.h_:I94N:
TIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hR:N31A:
L/usr/local/clang/include/absl/synchronization/mutex.h_:D801E:F45I:N Ewarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]M
AKE  _801C | H E CCKo_nOdPi_tSiToRnI(NbGo_oElX T(E*RaNb(sclo_nnsotn nvuolild *f uanbcs)l(_vnooindn*u lalb)s;l
_      n| u^l
la/usr/local/clang/include/absl/log/internal/check_op.hb:i449l:i31t:y _note: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
kno  w449n | ) , 
e      x| t                                            ^e
rn/usr/local/clang/include/absl/base/nullability.h :t289e:m34p:l anote: texpanded from macro 'absl_nullability_unknown'e
 co  n289s | t# dcehfairn*e  aabbssll__nnounlnlualbli lMiatkye_CuhnekcnkoOwpnS t_rNiunlgl(_ u n s\p
e      c| i                              ^f
ie/usr/local/clang/include/absl/base/nullability.hd:
241      :| 22                                 ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2polygon.ccn:o18n:
nIn file included from u../src/s2/s2polygon.hl:l29 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_map.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl:
19      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:e175f:i3n:e  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  o175n | n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(insIn file included from es2/s2polyline.ccr:t18_:
oIn file included from r../src/s2/s2polyline.h_:a31s:
sIn file included from i../src/s2/base/logging.hg:n21,:
 In file included from i/usr/local/clang/include/absl/log/check.hn:s37e:
rIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h_:o21r:
_/usr/local/clang/include/absl/log/internal/check_op.ha:s465s:i1g:n _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl,   465& | &A,B S&L&_,L OtGr_uIeN,T EtRrNuAeL,_
D      E| F  ^I
NE/usr/local/clang/include/absl/container/internal/raw_hash_map.h_:M133A:K52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                    E /usr/local/clang/include/absl/strings/cord.h_:C94H:
EIn file included from C/usr/local/clang/include/absl/strings/internal/cordz_info.hK:_31O:
P/usr/local/clang/include/absl/synchronization/mutex.h_:S802T:R19I:N Gwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]E
XTERN  (802c | o n s t   v o i d *   a bvsoli_dn*o nanbuslll_)n;u
l      l| a^b
ilit/usr/local/clang/include/absl/log/internal/check_op.hy:_450u:n25k:n onote: wexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
 ar  g450) | ; 
        |                    ^ 
 x, /usr/local/clang/include/absl/base/nullability.hx:,289 :c34o:n snote: texpanded from macro 'absl_nullability_unknown' 
cha  r289* |  #adbesfli_nneo nanbuslll_)n
u      l| l                        ^a
bil/usr/local/clang/include/absl/base/nullability.hi:t241y:_22u:n knote: nexpanded from macro 'absl_nonnull'o
wn   241_ | N#udlelf_iunnes paebcsilf_ineodn
n      u| l                                 ^l
 _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2polyline.cc814: | 18 :
 In file included from C../src/s2/s2polyline.ho:n31d:
iIn file included from t../src/s2/base/logging.hi:o21n:
(In file included from b/usr/local/clang/include/absl/log/check.ho:o37l:
 In file included from (/usr/local/clang/include/absl/log/internal/check_impl.h*:a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_502n:o1n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 fu  n502c | )A(BTS*L _aLbOsGl__InNuTlElRaNbAiLl_iCtHyE_CuKn_kOnPo_wInM)P,L
(      C| h                   ^e
ck_/usr/local/clang/include/absl/base/nullability.hE:Q241,: 22=:= )note: 
expanded from macro 'absl_nonnull'      
| ^
  241 | /usr/local/clang/include/absl/log/internal/check_op.h#:d488e:f32i:n enote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
bsl  _488n | o n niunllli n_eN ocnonnusltle
x      p| r                     ^ 
const chIn file included from as2/s2polygon.ccr:*18 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l43a:
bIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.he: 19n:
aIn file included from m/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:#59#:
IIn file included from m/usr/local/clang/include/absl/strings/cord.hp:l94(:
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 814 : 42 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      814\ | 
        | C                               ^o
nd/usr/local/clang/include/absl/base/nullability.hi:t257i:o23n:( bnote: oexpanded from macro 'absl_nullable'o
l   (257* | a#bdself_innoen naublsll _fnuunlcl)a(bTl*e  a_bNsull_lnaublllea
b      i| l                      ^i
ty_unknown),
In file included from       s2/s2polyline.cc| :                                         ^18
:
In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/base/nullability.h::31289:
:In file included from 34../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/log/check.h
:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h289: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f502i:n1e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:u489l:l47a:b inote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
ty_u  n489k | n o w n   _ Ncuolnls_tu nTs1p&e cvi1f,i ecdo
n      s| t                                 ^ 
T2& v2, const cIn file included from hs2/s2polygon.cca:r18*:
 In file included from a../src/s2/s2polygon.hb:s29l:
_In file included from n/usr/local/clang/include/absl/container/flat_hash_map.ho:n43n:
uIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.hl: 19e:
xIn file included from p/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:t59e:
xIn file included from t/usr/local/clang/include/absl/strings/cord.h): 94{:
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
\/usr/local/clang/include/absl/synchronization/mutex.h
:      815| :                                              ^16
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]241
:22:   815note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f i n eT *a basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
 arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from In file included from s2/s2polyline.cc/usr/local/clang/include/absl/strings/cord.h::1894:
:
In file included from In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::3131:
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/synchronization/mutex.h::21830:
:In file included from 14/usr/local/clang/include/absl/log/check.h:: 37:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :830502 | : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
bo/usr/local/clang/include/absl/log/internal/check_op.ho:l497 :(32*:a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
_non  n497u | l l  ifnulnicn)e( Tc*o nasbtselx_pnru lcloanbsitl icthya_ru*n kanboswln_)n,u
l      l| a             ^b
le/usr/local/clang/include/absl/base/nullability.h :n241a:m22e:# #note: Iexpanded from macro 'absl_nonnull'm
pl  (241  |  # d e f i n e   a b s l _ n o n n u\l
l       | _                               ^N
on/usr/local/clang/include/absl/base/nullability.hn:u257l:l23
:       | note:                      ^expanded from macro 'absl_nullable'

  257 | #In file included from ds2/s2polygon.cce:f18i:
nIn file included from e../src/s2/s2polygon.h :a29b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h_:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.ha:b19l:
eIn file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:N59u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94l:
eIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                      ^:

/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline.cc:  18830:
 | In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.hb:o21o:
lIn file included from  /usr/local/clang/include/absl/log/check.h(:*37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n502u:l1l:  fwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
c)/usr/local/clang/include/absl/log/internal/check_op.h(:T498*: 35a:b snote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
nul  l498a | b i l i t y _iunntk nvo1w,n )i,n
t       | v                                   ^2
, /usr/local/clang/include/absl/base/nullability.hc:o289n:s34t:  cnote: hexpanded from macro 'absl_nullability_unknown'a
r*   289a | b#sdle_fnionnen ualbls le_xnpurltleaxbti)l i{t y _ u n k n o w n   _ N u l l _ u\n
s      p| e                                  ^c
if/usr/local/clang/include/absl/base/nullability.hi:e241d:
22      :|                                   ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2polygon.cc :_18N:
oIn file included from n../src/s2/s2polygon.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h      :| 43                     ^:

In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
     \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnu/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VAIn file included from _s2/s2polyline.ccA:R18G:
SIn file included from _../src/s2/s2polyline.h_:
31      :
| In file included from         ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1&In file included from  s2/s2min_distance_targets.ccv:139,:
 In file included from c../src/s2/s2shape_index_region.ho:n25s:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.hT:245&:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.hv:2184,: 3c:o nwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
 cha  r184* |   a bAsBlS_Ln_oInNnTuElRlN AeLx_pXr(tienxste)r t{_ o r _ a s\s
i      g| n                                              ^,
 i/usr/local/clang/include/absl/base/nullability.hn:s241e:r22t:_ onote: rexpanded from macro 'absl_nonnull'_
as  s241i | g#nd_eifmipnle,  acbosnls_tn&o,n ncuolnls t_&N,o ntnruulel,

            | |                      ^  ^

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #In file included from ds2/s2polyline.cce:f18i:
nIn file included from e../src/s2/s2polyline.h :A31B:
SIn file included from L../src/s2/base/logging.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/check.hR:N37A:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hI:F21_:
t/usr/local/clang/include/absl/log/internal/check_op.hr:u504e:(1i:f _warning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
ti/usr/local/clang/include/absl/log/internal/check_op.hs:f497i:e32d:,  note: ..expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'.
) if  _497s | a t iisnfliiende
       c| o        ^n
stexpr const chaIn file included from rs2/s2min_distance_targets.cc*: 39a:
bIn file included from s../src/s2/s2shape_index_region.hl:_25n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:a45b:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 184n:a3m:e #warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]I
mpl(    184  |      A B S L _ I N T E R N A L _\X
(      i| n                               ^s
er/usr/local/clang/include/absl/base/nullability.ht:_257o:r23_:a snote: sexpanded from macro 'absl_nullable'i
gn  ,257  | i#ndseefritn_eo ra_bassls_ingunl_liambplle,  _cNounlslta&b,l ec
o      n| s                      ^t
&, true,In file included from 
s2/s2polyline.cc      :| 18  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2polyline.h:31  :
185In file included from  | ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 504 :1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
ll mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22  :498  | note:  expanded from macro 'absl_nonnull' 
     241  | i#ndte fvi1n,e  ianbts lv_2n,o ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
onnull exprtext) {              In file included from  s2/s2polygon.cc : 18\:

In file included from       ../src/s2/s2polygon.h| :                                  ^29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h241::1922:
:In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:note: 59expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e1069 :a32b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu l1069l |   _ Nboononlu lWla
i      t| W                     ^i
thDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
 true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:In file included from 184s2/s2polyline.cc::318::
 In file included from ../src/s2/s2polyline.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]31
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/base/logging.h::13521::
16In file included from :/usr/local/clang/include/absl/log/check.h :37note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  /usr/local/clang/include/absl/log/internal/check_op.h135: | 505 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     t505h | iAsB))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...S)L __L_OVGA__IANRTGESR_N_A
L      _| C        ^H
ECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_In file included from ss2/s2polyline.cca:t18i:
sIn file included from f../src/s2/s2polyline.hi:e31d:

In file included from       ../src/s2/base/logging.h| :        ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2min_distance_targets.cc:39  :
506In file included from  | ../src/s2/s2shape_index_region.hA:B25S:
LIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hL:O45G:
_/usr/local/clang/include/absl/container/internal/raw_hash_map.hI:N189T:E3R:N Awarning: L'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
CHECK_  O189P | _ I MAPBLS(LC_hIeNcTkE_RGNEA,L _>X=()i
n      s| e^r
t_o/usr/local/clang/include/absl/log/internal/check_op.hr:_488a:s32s:i gnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL',
 in  s488e | r t _ionrl_ianses icgonn_sitmepxlp,r  ccoonnsstt& ,c h&a&r,*  faablssle_,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
ble   190n | a m e # # I m p l (                  t r u e ,   . f i r s\t
,       | c                               ^o
nst/usr/local/clang/include/absl/base/nullability.h_:i257t:e23r:a tnote: oexpanded from macro 'absl_nullable'r
 A  B257S | L#_dIeNfTiEnReN AaLb_sClO_MnMuAl)l;a
b      l| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
_Nu/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l135a:b11l:e 
      note: | expanded from macro 'ABSL_INTERNAL_X'                      ^

  135 |        In file included from  s2/s2polyline.cc : 18t:
hIn file included from i../src/s2/s2polyline.hs:)31):
)In file included from  ../src/s2/base/logging.hA:B21S:
LIn file included from _/usr/local/clang/include/absl/log/check.hA:T37T:
RIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hB:U21T:
E/usr/local/clang/include/absl/log/internal/check_op.h_:L506I:F1E:T Iwarning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_B/usr/local/clang/include/absl/log/internal/check_op.hO:U489N:D47 :{  note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      489  |              c o n s t   T 1 &   v 1 ,   c o\n
s      t|            ^~~~T
2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* abs/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:_191n:u3l:l awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
e na  m191e | # # IAmBpSlL(_ I N T E R N A L _ X ( i n s e r t _ o\r
_      a| s                               ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,257 :i23n:s enote: rexpanded from macro 'absl_nullable't
_o  r257_ | a#sdseifginn_ei mapbls,l _cnounlslta&b,l e& &_,N utlrluaeb,l
e      
|         ^| 
                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2polyline.cc:18  :
133In file included from  | ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.hA:B37S:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hI:N21T:
E/usr/local/clang/include/absl/log/internal/check_op.hR:N506A:L1_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IB/usr/local/clang/include/absl/log/internal/check_op.hU:T498E:_35C:A Pnote: Texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'U
RED  _498B | Y ( t h i s )i)n,t   v 1 ,   i n t   v 2 ,   c o n s t   c h a r *   a\b
s      l| _                                                   ^n
onn/usr/local/clang/include/absl/container/internal/common.hu:l31l: 9e:x pnote: rmacro 'ABSL_INTERNAL_IF_true' defined heret
ext   )31  | {# d e f i n e   A B S L _ I N T E R\N
A      L| _                                  ^I
F_/usr/local/clang/include/absl/base/nullability.ht:r241u:e22(:i fnote: _expanded from macro 'absl_nonnull's
at  i241s | f#ideedf,i n.e. .a)b silf__nsoantniuslfli e_dN
o      n| n        ^u
ll
      |                      ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool CoIn file included from ns2/s2predicates.ccd:i18t:
iIn file included from o../src/s2/s2predicates.hn::55::
CIn file included from a/usr/local/clang/include/absl/flags/flag.hs:t42A:
nIn file included from d/usr/local/clang/include/absl/flags/internal/flag.hC:a30l:
l/usr/local/clang/include/absl/base/call_once.hF:u153n:c41t:i owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
cons  t153  | C o n d iCtailolnO*n caebIsmlp_ln(osntndu:l:la tco)m i{c
<      u| i                                                     ^n
t32/usr/local/clang/include/absl/base/nullability.h_:t241>:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf icnoen tarbosll,_
n      o| n                                        ^n
ull/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullabIn file included from is2/s2predicates.ccl:i18t:
yIn file included from _../src/s2/s2predicates.hu:n55k:
nIn file included from o/usr/local/clang/include/absl/flags/flag.hw:n42 :
aIn file included from r/usr/local/clang/include/absl/flags/internal/flag.hg:)30
:
      | /usr/local/clang/include/absl/base/call_once.h       ^:
194:31/usr/local/clang/include/absl/base/nullability.h:: 289:warning: 34:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullability_unknown'
  194   | 289i | n#ldienfei nset da:b:salt_onmuilcl<aubiinlti3t2y__tu>n*k naobwsnl __nNounlnlu_luln sCpoenctirfoileWdo
r      d| (                                 ^

      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     onceIn file included from _s2/s2polygon.ccf:l18a:
gIn file included from *../src/s2/s2polygon.h :a29b:
sIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h_:n43o:
nIn file included from n/usr/local/clang/include/absl/container/hash_container_defaults.hu:l19l:
 In file included from f/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:a59g:
)In file included from  /usr/local/clang/include/absl/strings/cord.h{:
94      :
| In file included from                ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h241::124122::12 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |  #1241d | e f i n eb oaobls l(_*naobnsnlu_lnlo n_nNuolnln ufluln
c      )| (                     ^T
* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2predicates.ccl: 18_:
NIn file included from o../src/s2/s2predicates.hn:n55u:
lIn file included from l/usr/local/clang/include/absl/flags/flag.h
:      42| :
                     ^In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40In file included from :s2/s2polygon.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  :20043 | :
vIn file included from o/usr/local/clang/include/absl/container/hash_container_defaults.hi:d19 :
LIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hw:L59e:
vIn file included from e/usr/local/clang/include/absl/strings/cord.hl:C94a:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hO:n31c:
e/usr/local/clang/include/absl/synchronization/mutex.h(:a1241b:s34l:: :warning: otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
ce_ f1241l | a g *   abbosoll_ n(o*nanbuslll_ nfolnangu,l lC aflulnacb)l(eT&*&  afbns,l
_      n| u                                       ^l
la/usr/local/clang/include/absl/base/nullability.hb:i241l:i22t:y _note: uexpanded from macro 'absl_nonnull'n
kn  o241w | n#)d,e
f      i| n                                 ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s289l:_34n:o nnote: nexpanded from macro 'absl_nullability_unknown'u
ll   289_ | N#odnenfuilnle
       a| b                     ^s
l_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de  191 |   ABSIn file included from Ls2/s2polyline.cc_:I18N:
TIn file included from E../src/s2/s2polyline.hR:N31A:
LIn file included from _../src/s2/base/logging.hX:(21i:
nIn file included from s/usr/local/clang/include/absl/log/check.he:r37t:
_In file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:_21a:
ss/usr/local/clang/include/absl/log/internal/check_op.hi:g507n:,1 :i nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
rt_o  r507_ | aAsBsSiLg_nL_OiGm_pIlN,T EcRoNnAsLt_&C,H E&C&K,_ OtPr_uIeM,P
L      (| C  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~h
eck  _192G | T ,   > ) 
        |  ^ 
   /usr/local/clang/include/absl/log/internal/check_op.h : 488 : 32 :  fnote: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
se,   488. | f i risntl,i nceo ncsotn_sitteexrpart ocro nAsBtS Lc_hIaNrT*E RaNbAsLl__CnOuMlMlAa)b;l
e       | n                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
me##/usr/local/clang/include/absl/container/internal/raw_hash_map.hI:m133p:l47(:   note:  expanded from macro 'ABSL_INTERNAL_X' 
        133  |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note:  macro 'ABSL_INTERNAL_IF_true' defined here
       31  |  # d\e
f      i| n                               ^e
 ABSL/usr/local/clang/include/absl/base/nullability.h_:I257N:T23E:R Nnote: Aexpanded from macro 'absl_nullable'L
_IF  _257t | r#udee(fiifn_es aatbisslf_ineudl,l a.b.l.e)  _iNfu_lslaatbilsef
i      e| d                      ^

      |         ^
In file included from s2/s2polyline.cc:In file included from 18s2/s2min_distance_targets.cc:
:In file included from 39../src/s2/s2polyline.h:
:In file included from 31../src/s2/s2shape_index_region.h:
:In file included from 25../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 45/usr/local/clang/include/absl/log/check.h:
:/usr/local/clang/include/absl/container/internal/raw_hash_map.h37::
193In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h3::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
507:1: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_193no | nn u lAlB SmLs_gI,N TcEoRnNsAtL _vXo(iidn*s earbts_lo_rn_oansnsuilgln ,c vi)n)s;e
r      t| _                                              ^o
r_a/usr/local/clang/include/absl/base/nullability.hs:s241i:g22n:_ inote: mexpanded from macro 'absl_nonnull'p
l,   241c | o#ndsetf&i,n e& &a,b stlr_uneo,n
n      u| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
 _Non  n194u | l l 
        |                       ^ 
            true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thiIn file included from s)s2/s2polyline.cc):,18 :
 In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 511 : 13\:
       | warning:                                                    ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/common.h  :51132 | :c9o:n snote: tmacro 'ABSL_INTERNAL_IF_false' defined here 
cha   r32* |  #adbesfli_nneu lAlBaSbLl_eI NCThEeRcNkAsLt_rIcFm_pftarluseeI(mipfl_(s
a      t| i            ^s
fied/usr/local/clang/include/absl/base/nullability.h,: 257.:.23.:)  note: _expanded from macro 'absl_nullable'_
VA  _257A | R#GdSe_f_i
n      e|          ^a
bsl_nullablIn file included from es2/s2min_distance_targets.cc :_39N:
uIn file included from l../src/s2/s2shape_index_region.hl:a25b:
lIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.h
:      45| :
                      ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2polyline.cc196: | 18 :
 In file included from A../src/s2/s2polyline.hB:S31L:
_In file included from I../src/s2/base/logging.hN:T21E:
RIn file included from N/usr/local/clang/include/absl/log/check.hA:L37_:
XIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hi:n21s:
e/usr/local/clang/include/absl/log/internal/check_op.hr:t512_:o17r:_ awarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
ign  ,512  | i n s e rcto_nosrt_ acshsairg*n _aibmspll_,n u&l&l,a bcloen sst1&,,  cfoanlsste ,c
h      a| r  ^*
 a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:s135l:_16n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X'a
ble   135s | 2 , 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257t:h23i:s )note: )expanded from macro 'absl_nullable')
 A  B257S | L#_dAeTfTiRnIeB UaTbEs_lL_InFuElTlIaMbEl_eB O_UNNuDl l{a b l e 
        |                        ^ 
          In file included from  s2/s2polyline.cc : 18 :
 In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.h :\21
:
      In file included from | /usr/local/clang/include/absl/log/check.h               ^:
37:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/log/internal/check_impl.h::3221::
9/usr/local/clang/include/absl/log/internal/check_op.h:: 512:note: 47macro 'ABSL_INTERNAL_IF_false' defined here:
 warning:    type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]32
 | #d  e512f | i n e   AcBoSnLs_tI NcThEaRrN*A La_bIsFl__fnaullslea(bilfe_ ssa1t,i scfoinesdt,  c.h.a.r)*  _a_bVsAl__AnRuGlSl_a_b
l      e|          ^s
2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2min_distance_targets.cc
:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: In file included from warning: s2/s2polyline.ccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
In file included from 18:
  In file included from s2/s2predicates.cc198:../src/s2/s2polyline.h | 18: :
31In file included from  :
A../src/s2/s2predicates.hIn file included from B:S../src/s2/base/logging.h55L:_:
I21In file included from N/usr/local/clang/include/absl/flags/flag.hT:
:EIn file included from 42R/usr/local/clang/include/absl/log/check.h:
N:AIn file included from L37/usr/local/clang/include/absl/flags/internal/flag.h_:
:XIn file included from 40(/usr/local/clang/include/absl/log/internal/check_impl.hi:
n:sIn file included from e21r/usr/local/clang/include/absl/flags/marshalling.h:
t:/usr/local/clang/include/absl/log/internal/check_op.h_207o::
r514In file included from _:a/usr/local/clang/include/absl/numeric/int128.h13s:s:i41g :
nwarning: ,/usr/local/clang/include/absl/types/compare.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
78 :i22  n:s514 e | rwarning: ct'enable_if' is a clang extension [-Wgcc-compat]o_
nosrt_ acs   hs78ai | gr n* _  iam bps ll ,_ _n&_u&al,tl tacrboilnbesu ttC&eh,_e _cf(ka(sletsnreac,bm
lp      ef| _a  ^il
fs(e/usr/local/clang/include/absl/container/internal/raw_hash_map.hnI: m133=p:=l52 (:0
 ,      note:  | expanded from macro 'ABSL_INTERNAL_X'"            ^
O
nl  /usr/local/clang/include/absl/base/nullability.hy133:  | 257l :i 23t : e  rnote:  aexpanded from macro 'absl_nullable' l 
  `   0A257`B |  Si#Lsd_ eIafNliTlnEoeRw NeaAdbL.s_"lA)_T)nT)uR lI{lB}aU
bT      lE| _e                     ^C 
A_PNTuUlRlEaDb_lBeY
(      t| h                      ^i
s)), In file included from  s2/s2polyline.cc : 18 :
 In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h\:
515      :| 17                                                   ^:
 warning: /usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
32:9:   515 | note:  macro 'ABSL_INTERNAL_IF_false' defined here 
  c   o32n | s#td ecfhianre*  AaBbSsLl__InNuTlElRaNbAlLe_ IsF1_,f aclosne(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
st char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/base/logging.h::20021::
3In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :200515 | : 47 :A Bwarning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_IN  T515E | R N A L _cXo(nisnts ecrhta_ro*r _aabsssli_gnnu,l lianbsleer ts_1o,r _caosnssitg nc_hiamrp*l ,a b&s&l,_ ncuolnlsatb&l,e  tsr2u,e
,      
|                                                     ^| 
  ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h257::13323::52 : note: note: expanded from macro 'absl_nullable'expanded from macro 'ABSL_INTERNAL_X'

  257 |   #133d | e f i n e   a b s l _AnBuSlLl_aIbNlTeE R_NNAuLl_lAaTbTlReI
B      U| T                      ^E
_CAPTUIn file included from Rs2/s2polyline.ccE:D18_:
BIn file included from Y../src/s2/s2polyline.h(:t31h:
iIn file included from s../src/s2/base/logging.h):)21,:
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 516 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     516  |     \ 
       c| o                                                   ^n
st/usr/local/clang/include/absl/container/internal/common.h :c31h:a9r:*  note: amacro 'ABSL_INTERNAL_IF_true' defined hereb
sl_   n31o | n#nduelfli neex pArBtSeLx_tI)N;T
E      R| N                ^A
L_/usr/local/clang/include/absl/base/nullability.hI:F241_:t22r:u enote: (expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende,  a.b.s.l)_ niofn_nsualtli s_fNioendn
u      l| l        ^

      |                      ^
In file included from s2/s2min_distance_targets.cc:39In file included from :
s2/s2polyline.ccIn file included from :../src/s2/s2shape_index_region.h18::
25In file included from :
../src/s2/s2polyline.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h31::
45In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h21::
200In file included from :/usr/local/clang/include/absl/log/check.h3::37 :
In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13  :200  | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
ABS  L517_ | IcNoTnEsRtN AcLh_aXr(*i nasbesrlt__nourl_laasbslieg nC,h eicnkssetrrtc_aosre_camspstirgune_Iimmppll(,
       &| &            ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n257s:t23&:,  note: texpanded from macro 'absl_nullable'r
ue  ,257
 |       #| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
fin  e201  | a b s l _ n u l l a b l e   _ N u  lfallasbel,e 
.      f| i                      ^r
st, const_iIn file included from ts2/s2polyline.cce:r18a:
tIn file included from o../src/s2/s2polyline.hr: 31A:
BIn file included from S../src/s2/base/logging.hL:_21I:
NIn file included from T/usr/local/clang/include/absl/log/check.hE:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:C21O:
M/usr/local/clang/include/absl/log/internal/check_op.hM:A518):;17
:       | warning:                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h518: | 133 : 47 :  cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
st ch  a133r | *   a b s l _ n u l lAaBbSlLe_ IsN1T,E RcNoAnLs_tA TcThRaIrB*U TaEb_sClA_PnTuUlRlEaDb_lBeY (st2h,i
s      )| )                ^,
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b\s
l      _| n                                              ^~~~u
llable _Nul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:a200b:l3e:
       | warning:                       ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2polyline.cc:18:
  In file included from 135../src/s2/s2polyline.h | : 31 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h :t37h:
iIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.h):)21):
 /usr/local/clang/include/absl/log/internal/check_op.hA:B518S:L47_:A Twarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
IBU  T518E | _ L I F EcToInMsEt_ BcOhUaNrD*  {a b s l _ n u l l a b l e   s 1 ,   c o n s t   c h a r *   a\b
s      l| _               ^n
ull/usr/local/clang/include/absl/container/internal/common.ha:b32l:e9 :s 2note: ,macro 'ABSL_INTERNAL_IF_false' defined here

      |                                               ^   
32 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'A
BS  L257_ | I#NdTeEfRiNnAeL _aIbFs_lf_anluslel(aibfl_es a_tNiuslfliaebdl,e 
.      .| .                      ^)
 __VA_In file included from As2/s2polyline.ccR:G18S:
_In file included from _../src/s2/s2polyline.h
:      31| :
        ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |  In file included from  s2/s2min_distance_targets.cc : 39c:
oIn file included from n../src/s2/s2shape_index_region.hs:t25 :
cIn file included from h/usr/local/clang/include/absl/container/flat_hash_map.ha:r45*:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b202s:l3_:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
able   202s | 1 ,  AcBoSnLs_tI NcThEaRrN*A La_bXs(li_nnsuelrlta_bolre_ ass2s,i
g      n| ,                ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e257r:t23_:o rnote: _expanded from macro 'absl_nullable'a
ss  i257g | n#_diemfpiln,e  &a&b,s lc_onnusltl&a,b lter u_eN,u
l      l| a  ^b
le/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:      133| :                      ^52
: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2polyline.cc:  18133:
 | In file included from  ../src/s2/s2polyline.h : 31 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:A521L:_47A:T Twarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
BUT  E521_ | C A P T UcRoEnDs_tB Yc(htahri*s )a)b,s l _ n u l l a b l e   s 1 ,   c o n s t   c h a r *\ 
a      b| s                                                   ^l
_n/usr/local/clang/include/absl/container/internal/common.hu:l31l:a9b:l enote:  macro 'ABSL_INTERNAL_IF_true' defined heres
2,
         31|  |                                               ^#
de/usr/local/clang/include/absl/base/nullability.hf:i257n:e23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nIeF _atbrsule_(niufl_lsaabtlies f_iNeudl,l a.b.l.e)
       i| f                      ^_
satisfieIn file included from ds2/s2polyline.cc
:      18| :
        ^In file included from 
../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:In file included from 17s2/s2min_distance_targets.cc:: 39:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2shape_index_region.h
:25:
  In file included from 522/usr/local/clang/include/absl/container/flat_hash_map.h | : 45 :
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h :c202o:n3s:t  warning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
ar*   a202b | s l _AnBoSnLn_uIlNlT EeRxNpArLt_eXx(ti)n;s
e      r| t                ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: ,expanded from macro 'absl_nonnull' 
in  s241e | r#td_eofri_naes saibgsnl__inmopnln,u l&l& ,_ Ncoonnnsutl&l,
       t| r                     ^u
e,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, inserIn file included from ts2/s2polygon.cc_:In file included from o18s2/s2polyline_measures.ccr:
_:aIn file included from s18../src/s2/s2polygon.hs:
:iIn file included from g29n../src/s2/s2polyline_measures.h:
_:In file included from i29/usr/local/clang/include/absl/container/flat_hash_map.hm:
:pIn file included from l43,../src/s2/s1angle.h :
&:In file included from &28/usr/local/clang/include/absl/container/hash_container_defaults.h,:
: In file included from 19c../src/s2/s2point.ho:
n:In file included from s24t/usr/local/clang/include/absl/container/internal/hash_function_defaults.h&:
,:In file included from  59t/usr/local/clang/include/absl/hash/hash.hr:
u:e89,/usr/local/clang/include/absl/strings/cord.h:

:In file included from       109/usr/local/clang/include/absl/hash/internal/hash.h| ::  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~5379:

:In file included from  /usr/local/clang/include/absl/base/internal/endian.h:warning: 26  :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]203
 | /usr/local/clang/include/absl/base/internal/unaligned_access.h : 39 : 45   :109    | warning:  vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] o
 i d   C o p y   C 39o  | trirdnuTleoi,Sn te.r fiiunrigsnt(t,c1 o6cn_ostnt s UtCn_oairtldie&gr nasetrodcrL, o AasBdtS1dL6:_(:IcsNotnTrsEiRtNn AgvL*o_ iCadOb*Ms MlaA_)bn;so
ln      _n| nu                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ol
nln udls/usr/local/clang/include/absl/container/internal/raw_hash_map.htl:) 135;p:
)11       :| {                                                     ^

note:       expanded from macro 'ABSL_INTERNAL_X'| 
                                            ^/usr/local/clang/include/absl/base/nullability.h
:241:  22135: |   note:  expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h 
 : 241   : 241 22  | : #t dhnote: eiexpanded from macro 'absl_nonnull'fs
i)n)  e)241   | aA#bdBseSlfL_i_nnAoeTn TnaRubIlsBlUl T__EnNo_oLnnInnFuuEllTllI 
M_      EN_| oB                     ^nO
nUuNlDl 
{       |                       ^ 
                           \
      |           ^~~~
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord&In file included from  s2/s2polyline_measures.ccs:r18c:
,In file included from  ../src/s2/s2polyline_measures.hs:t29d:
:In file included from :../src/s2/s1angle.hs:t28r:
iIn file included from n../src/s2/s2point.hg:*24 :
aIn file included from b/usr/local/clang/include/absl/hash/hash.hs:l89_:
nIn file included from o/usr/local/clang/include/absl/hash/internal/hash.hn:n79u:
lIn file included from l/usr/local/clang/include/absl/base/internal/endian.h :d26s:
t/usr/local/clang/include/absl/base/internal/unaligned_access.h):;45
:      45| :                                                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:    45 | note: iexpanded from macro 'absl_nonnull'n
li  n241e |  #udienfti3n2e_ ta bUsnla_lniognnneudlLlo a_dN3o2n(ncuolnls
t       | v                     ^o
id* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 205../src/s2/s1angle.h::328::
 In file included from ../src/s2/s2point.hwarning: :24passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from   /usr/local/clang/include/absl/hash/internal/hash.h205: | 79 :
 In file included from A/usr/local/clang/include/absl/base/internal/endian.hB:S26L:
_/usr/local/clang/include/absl/base/internal/unaligned_access.hI:N51T:E45R:N Awarning: LIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_s2/s2pointutil.cc
X:(18i   n:
51sIn file included from  | e../src/s2/s2pointutil.hirn:tl25_io:
nreIn file included from _ a../src/s2/s1angle.husi:sn28it:
g6In file included from n4,../src/s2/s2point.h_ t:i n25Usn:
eaIn file included from rlt../src/s2/util/coding/coder.hi_g:on36re:
_daIn file included from Lso../src/s2/base/casts.hsa:id34g6:
n4In file included from _(i/usr/local/clang/include/absl/log/log.hcmo:pn209ls,:
t  In file included from &v&/usr/local/clang/include/absl/log/internal/log_impl.ho,i: d&22*& :
,aIn file included from  b/usr/local/clang/include/absl/log/internal/log_message.hfsa:ll_53sne:
o,n /usr/local/clang/include/absl/types/source_location.hnf:ual113ll:s 19ep:,)
        warning: {| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  ^
      
|                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133  /usr/local/clang/include/absl/base/nullability.h:113:52 | 241: :  22note:  :expanded from macro 'ABSL_INTERNAL_X'  
 note:  expanded from macro 'absl_nonnull'  c
133o   | n241 s |  #t d  ec f hi an er   *aA bBasbSlsLl__n_IonNnTonEnuRlnNlAu lL_l_NAo TnfTnRiulIelB_lU
nTa      Em| e_                     ^ C=
A P_T_UbRuEiDl_tBiYn(_tFhIiLsE)()),)   { 
        |                    ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 In file included from    s2/s2polygon.cc 241:  | 18# :
dIn file included from  In file included from \es2/s2polyline_measures.cc../src/s2/s2polygon.h
f::      i18n29e| :
:
                                                    ^In file included from In file included from a
../src/s2/s2polyline_measures.h/usr/local/clang/include/absl/container/flat_hash_map.hb:s:/usr/local/clang/include/absl/container/internal/common.h29l43::
_:
32In file included from nIn file included from :../src/s2/s1angle.ho/usr/local/clang/include/absl/container/hash_container_defaults.h9:n::28n19 :
u:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined herelIn file included from l../src/s2/s2point.h
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :_:   24N5932:
o:
n | nIn file included from u/usr/local/clang/include/absl/strings/cord.h#:/usr/local/clang/include/absl/hash/hash.hld425:le
:89f      62:
i| :                     ^In file included from n ewarning: 
/usr/local/clang/include/absl/hash/internal/hash.h type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A:B
S79L:
_In file included from I/usr/local/clang/include/absl/base/internal/endian.hN  :T42526E | :
R /usr/local/clang/include/absl/base/internal/unaligned_access.hN :Af57Lr:_i36Ie:Fn _dwarning: f type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]va
olisde   ( i57fC | o_ipsnyalCtioinrsedf ivTooIn file included from eidSs2/s2pointutil.ccd, tU: r.n.18ian.g:
l)i g_(In file included from n_cV../src/s2/s2pointutil.heodnSAt:s_tAo25 RCGr:
oSe_In file included from r1d_&
../src/s2/s1angle.h6 (svr      :oci| 28,d *s        ^:
 ta
In file included from db:s../src/s2/s2point.h:l:s_t25In file included from nro:
s2/s2min_distance_targets.ccinnIn file included from :ngu../src/s2/util/coding/coder.h39*l::
 l36In file included from a b:
../src/s2/s2shape_index_region.hps,In file included from :l _../src/s2/base/casts.h25unio::
nnt34In file included from n/usr/local/clang/include/absl/container/flat_hash_map.hu1:
:l6lIn file included from 45_ t/usr/local/clang/include/absl/log/log.h:
d s:/usr/local/clang/include/absl/container/internal/raw_hash_map.hvt)209:) ;{:
205

In file included from :            /usr/local/clang/include/absl/log/internal/log_impl.h3| |                                                              ^::                                   ^
22 
:
/usr/local/clang/include/absl/base/nullability.hwarning: In file included from /usr/local/clang/include/absl/base/nullability.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/internal/log_message.h:241
:241:53:22  :
22:205:/usr/local/clang/include/absl/types/source_location.h  |  :note:  note:  expanded from macro 'absl_nonnull'133expanded from macro 'absl_nonnull'A
B:
S  25L241_:   | I 241#Ndwarning:  | TeEftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#Ri
dNneAefL   i_nXa133e( ianb | bssesrl lt___o ncnoroonn_snnnuulllatl se __sxNNiporognnn n,ncuo uilnlnlsstl

e             rc| | th                     ^                     ^_a

orr*_ aasbssilg_nn_oinmnpull,In file included from l  s2/s2polygon.cc&f:&i18, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(inl:
e_nIn file included from a../src/s2/s2polygon.hmIn file included from :es2/s2polyline_measures.cc29(::
18)In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.h In file included from c:o../src/s2/s2polyline_measures.h43n::
s29In file included from t:
/usr/local/clang/include/absl/container/hash_container_defaults.h In file included from :n../src/s2/s1angle.h19o::
e28xIn file included from c:
/usr/local/clang/include/absl/container/internal/hash_function_defaults.heIn file included from p:t../src/s2/s2point.h59 ::
{24
:
/usr/local/clang/include/absl/strings/cord.h      In file included from :| /usr/local/clang/include/absl/hash/hash.h437                        ^::
8947:
:In file included from  /usr/local/clang/include/absl/hash/internal/hash.h:warning: 79:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.hIn file included from 
:/usr/local/clang/include/absl/base/internal/endian.h241::2622:
: /usr/local/clang/include/absl/base/internal/unaligned_access.h  :note: 43761expanded from macro 'absl_nonnull' | :
 36 :     warning:  241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  |  
# d e f    i 61n  | e i  na lb is nl e_  n vo no ni ud l  lU  n_ aN lo ni g nn uesldltSd
t:o      :r| se                     ^t3
r2i(nvgo*i da*b salb_snlo_nnnounlnlu ldls tp),; 
u      i| n                                              ^t
32_t/usr/local/clang/include/absl/base/nullability.h :v241): 22{:
       | note:                                    ^In file included from expanded from macro 'absl_nonnull'
s2/s2pointutil.cc
:18/usr/local/clang/include/absl/base/nullability.h:
  :In file included from 241../src/s2/s2pointutil.h241 | ::#2522d:
:eIn file included from  f../src/s2/s1angle.hnote: i:expanded from macro 'absl_nonnull'n28e
:
 In file included from a  ../src/s2/s2point.hb241:s | 25l#:
_dIn file included from ne../src/s2/util/coding/coder.hof:ni36nn:
ueIn file included from l ../src/s2/base/casts.hla: b34_s:
NlIn file included from o/usr/local/clang/include/absl/log/log.h_n:nn209oun:
lnIn file included from lu/usr/local/clang/include/absl/log/internal/log_impl.h
l:      l22|  :
                     ^_In file included from 
N/usr/local/clang/include/absl/log/internal/log_message.ho:n53n:
u/usr/local/clang/include/absl/types/source_location.hl:l142
:      25| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcIn file included from es2/s2polyline_measures.ccp:t18 :
{In file included from 
../src/s2/s2polyline_measures.h      :| 29                        ^:

In file included from In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polygon.cc../src/s2/s1angle.h:::2411828::
:
22In file included from In file included from :../src/s2/s2polygon.h../src/s2/s2point.h ::29note: 24:
expanded from macro 'absl_nonnull':
In file included from 
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/hash/hash.h:  :4324189:
 | :
In file included from #In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hd/usr/local/clang/include/absl/hash/internal/hash.h:e:19f79:
i:
In file included from nIn file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.he/usr/local/clang/include/absl/base/internal/endian.h :a:59b26:
s:
/usr/local/clang/include/absl/strings/cord.hl:_/usr/local/clang/include/absl/base/internal/unaligned_access.h480n::o6539n:n:u36 l:warning: l type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o  
n480n | u     l65 l |  
iu      ns| li                     ^in
nge  pvooiindt eUrn a=l icgonnesdtS tvoarleu6e4_(tvyopied*In file included from * s2/s2pointutil.cc a:ab18bs:
slIn file included from l_../src/s2/s2pointutil.h_n:no25on:
nnIn file included from nu../src/s2/s1angle.hul:ll28l;:
 
In file included from p      ../src/s2/s2point.h,|  :                                      ^u25
i:
nIn file included from t/usr/local/clang/include/absl/base/nullability.h../src/s2/util/coding/coder.h6::424136_::
t22In file included from  :../src/s2/base/casts.hv :)34note:  :
expanded from macro 'absl_nonnull'{In file included from 

/usr/local/clang/include/absl/log/log.h      :  | 209241                                   ^:
 | 
In file included from #/usr/local/clang/include/absl/log/internal/log_impl.hd:/usr/local/clang/include/absl/base/nullability.he22:f:
241iIn file included from :n/usr/local/clang/include/absl/log/internal/log_message.h22e:: 53 a:
note: b/usr/local/clang/include/absl/types/source_location.hexpanded from macro 'absl_nonnull's:
l150_:  n40241o: | n #nwarning: dutype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]el
fli n_  eN150 o | an bn su ll _l n
 o       n | n                      ^u 
l l   _ N o n n u l l 
        |                       ^ 
  const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     exIn file included from ps2/s2pointutil.ccl:i18c:
iIn file included from t../src/s2/s2pointutil.h :C25h:
uIn file included from n../src/s2/s1angle.hk:I28t:
eIn file included from r../src/s2/s2point.ha:t25o:
rIn file included from (../src/s2/util/coding/coder.hc:o36r:
dIn file included from _../src/s2/base/casts.hi:n34t:
eIn file included from r/usr/local/clang/include/absl/log/log.hn:a209l:
:In file included from :/usr/local/clang/include/absl/log/internal/log_impl.hC:o22r:
dIn file included from R/usr/local/clang/include/absl/log/internal/log_message.he:p53*:
 /usr/local/clang/include/absl/types/source_location.ha:b165s:l15_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   165t | r e ec)o;n
s      t|                                                     ^c
har/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dfeiflien_en aambes_l _=n o"n"n;u
l      l|                ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnullIn file included from  s2/s2polygon.cc_:N18o:
nIn file included from n../src/s2/s2polygon.hu:l29l:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h| :                     ^43
:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2polygon.ccs2/s2pointutil.cc::1818:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2pointutil.h::2925:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s1angle.h::4328:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h../src/s2/s2point.h::1925:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h../src/s2/util/coding/coder.h::5936:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/casts.h::52534::
35In file included from :/usr/local/clang/include/absl/log/log.h :209warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:22:
  /usr/local/clang/include/absl/log/internal/log_message.h525: | 71 : 26 :  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l::c   o71r | d _ iLnotgeMrensasla:g:eC(ocrodnRsetp *c haabrs*l _anbuslll_anbolnen uclulr rfeinlte_,l eianft_  l=i nneu,l
l      p| t                         ^r
;
      /usr/local/clang/include/absl/base/nullability.h| :                                  ^241
:22:/usr/local/clang/include/absl/base/nullability.h :257note: :expanded from macro 'absl_nonnull'23
:   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
sert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:582:37In file included from :s2/s2min_distance_targets.cc :39warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2shape_index_region.h
:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3:   warning: 582passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
      211e | x p lAiBcSiLt_ ICNhTuEnRkNRAaLn_gXe((icnosnesrtt _Coorr_da*s saibgsnl,_ nionnsneurltl_ ocro_rads)s i:g nc_oirmdp_l(,c o&r&d,)  &{&},
       t| r                                    ^u
e, true/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22  ^:
 note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hexpanded from macro 'absl_nonnull':
133:52:   241 | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n133e |   a b s l _ n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_In file included from ts2/s2polygon.ccr:u18e:
(In file included from i../src/s2/s2polygon.hf:_29s:
aIn file included from t/usr/local/clang/include/absl/container/flat_hash_map.hi:s43f:
iIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hd:,19 :
.In file included from ./usr/local/clang/include/absl/container/internal/hash_function_defaults.h.:)59 :
i/usr/local/clang/include/absl/strings/cord.hf:_588s:a17t:i swarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ed
        | 588        ^ | 
    const CorIn file included from ds2/s2min_distance_targets.cc*: 39a:
bIn file included from s../src/s2/s2shape_index_region.hl:_25n:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hn:u45l:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.h :c211o:r3d:_ ;warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                 ^
  /usr/local/clang/include/absl/base/nullability.h211: | 241 : 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(ei nasbesrlt__noorn_nauslsli g_nN,o nnull
      |                      ^
bsl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     usIn file included from is2/s2pointutil.ccn:g18 :
pIn file included from o../src/s2/s2pointutil.hi:n25t:
eIn file included from r../src/s2/s1angle.h :=28 :
cIn file included from o../src/s2/s2point.hn:s25t:
 In file included from c../src/s2/util/coding/coder.hh:a36r:
*In file included from  ../src/s2/base/casts.ha:b34s:
lIn file included from _/usr/local/clang/include/absl/log/log.hn:o209n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.hl:l22;:

/usr/local/clang/include/absl/log/internal/log_message.h      :| 190                                ^:
42: /usr/local/clang/include/absl/base/nullability.hwarning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22: note:   expanded from macro 'absl_nonnull'190
 |    241  | L#odgeMfeisnsea gaeb&s lo_pneornantuolrl< <_(Nsotndn:u:lols
t      r| e                     ^a
m& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |  In file included from  s2/s2pointutil.cc : 18e:
xIn file included from p../src/s2/s2pointutil.hl:i25c:
iIn file included from t../src/s2/s1angle.h :C28h:
aIn file included from r../src/s2/s2point.hI:t25e:
rIn file included from a../src/s2/util/coding/coder.ht:o36r:
(In file included from c../src/s2/base/casts.ho:n34s:
tIn file included from  /usr/local/clang/include/absl/log/log.hC:o209r:
dIn file included from */usr/local/clang/include/absl/log/internal/log_impl.h :a22b:
s/usr/local/clang/include/absl/log/internal/log_message.hl:_191n:o43n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 cor  d191) | 
        | L                                      ^o
gM/usr/local/clang/include/absl/base/nullability.he:s241s:a22g:e &note:  expanded from macro 'absl_nonnull'o
pe  r241a | t#odre<f<i(nset da:b:silo_sn_obnansuel&l  (_*Naobnsnlu_lnl
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
onnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
19      |                      ^
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34In file included from :
s2/s2polygon.ccIn file included from :/usr/local/clang/include/absl/log/log.h18::
209In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h29::
22In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/log/internal/log_message.h::43306:
:In file included from 3/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19:
warning: In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
59:
/usr/local/clang/include/absl/strings/cord.h  :306795 | : 43 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n795u | l l  fsrtide:n:du nvique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2min_distance_targets.cc:39:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_IoNiTdE RANbAsLl_FXo(rimnasteFrltu_sohr(_aabsssli:g:nC,o ridn*s earbts_lo_rn_oansnsuilgln _ciomrpdl,,
       &| &                                          ^,
 &&, tr/usr/local/clang/include/absl/base/nullability.hu:e241,: 22t:r unote: eexpanded from macro 'absl_nonnull',

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #  d212e | f i n e   a b s l _ n o n n u l l   _.Nfoinrnsutl,l 
c      o| n                     ^s
t_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURIn file included from Es2/s2polygon.ccD:_18B:
YIn file included from (../src/s2/s2polygon.ht:h29i:
sIn file included from )/usr/local/clang/include/absl/container/flat_hash_map.h,:
43      :
| In file included from                                                          ^~~~/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonn/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l252l:
63      :|                       ^warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSLIn file included from _s2/s2polygon.ccI:N18T:
EIn file included from R../src/s2/s2polygon.hN:A29L:
_In file included from A/usr/local/clang/include/absl/container/flat_hash_map.hT:T43R:
IIn file included from B/usr/local/clang/include/absl/container/hash_container_defaults.hU:T19E:
_In file included from C/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:P59T:
U/usr/local/clang/include/absl/strings/cord.hR:E932D:_17B:Y (warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]h
is)  ,932
 |        |                                                                ^~~~ 
 const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h59::
267/usr/local/clang/include/absl/strings/cord.h::75935:: 11warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  267   | 935  |          c h a r *   a b s l _ n o n n u l lk esye_ta_rdga<tKa>(&s&i zke _AtB SnL)_;I N T/E/R NWArLi_tAeT TdRaItBaU TtEo_ CtAhPeT UrReEsDu_lBtY
(      t| h          ^i
s)/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22                                                                          ^~~~:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h938::28335::64 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  938 |     283  |   a b s l : : c o r d _ i n t e r n a l : : C o r d R eApB*S La_bIsNlT_EnRoNnAnLu_lAlT TaRsI_Btree(U)T Ec_oCnAsPtT;U
R      E| D                                  ^_
BY/usr/local/clang/include/absl/base/nullability.h(:t241h:i22s:) ,note: 
expanded from macro 'absl_nonnull'      
|                                                                ^~~~  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321In file included from  | s2/s2polygon.cc : 18 :
 In file included from  ../src/s2/s2polygon.h :k29e:
yIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.ha:r43g:
<In file included from K/usr/local/clang/include/absl/container/hash_container_defaults.h>:&19&:
 In file included from k/usr/local/clang/include/absl/container/internal/hash_function_defaults.he:y59 :
A/usr/local/clang/include/absl/strings/cord.hB:S950L:_18I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_  A950T | T R I B UCToEr_dCRAePpTFUlRaEtD*_ BaYb(stlh_inso)n)n
u      l| l                                                           ^~~~ 
MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_non/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
null tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(In file included from cs2/s2pointutil.cch:a18r:
*In file included from  ../src/s2/s2pointutil.ha:b25s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l25 :
dIn file included from s../src/s2/util/coding/coder.ht:)36 :
cIn file included from o../src/s2/base/casts.hn:s34t:
;In file included from 
/usr/local/clang/include/absl/log/log.h      :| 209                           ^:

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/base/nullability.h::22241:
:22/usr/local/clang/include/absl/log/internal/log_message.h:: 319note: :expanded from macro 'absl_nonnull'20
:   warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#def  i319n | e   a b sclo_nnsotn nwuclhla r__Nto*n naublsll
_      n| u                     ^l
lable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nIn file included from us2/s2polygon.ccl:l18a:
bIn file included from l../src/s2/s2polygon.he: 29_:
NIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l43a:
bIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.he:
19      :
| In file included from                       ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* abslIn file included from _s2/s2pointutil.ccn:u18l:
lIn file included from a../src/s2/s2pointutil.hb:l25e:
 In file included from c../src/s2/s1angle.ho:r28d:
zIn file included from _../src/s2/s2point.hi:n25f:
oIn file included from (../src/s2/util/coding/coder.h): 36c:
oIn file included from n../src/s2/base/casts.hs:t34 :
{In file included from 
/usr/local/clang/include/absl/log/log.h      :| 209                                    ^:

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:/usr/local/clang/include/absl/base/nullability.h22::
257/usr/local/clang/include/absl/log/internal/log_message.h::23321:: 52:note:  expanded from macro 'absl_nullable'warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  257 | #  d321e | fiinnlei naeb sLlo_gnMuelslsaabglee&  _LNouglMleasbslaeg
e      :| :                      ^o366
p warningesr generateda.
tor<<(wcharIn file included from _s2/s2polygon.cct:*18 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_map.hl:l43a:
bIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.he: 19v:
)In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h{:
59      :
| /usr/local/clang/include/absl/strings/cord.h                                                   ^:
1017:51/usr/local/clang/include/absl/base/nullability.h:: 257warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
: note: expanded from macro 'absl_nullable' 
1017 |    257  |  # dveofiidn es eatb_sclo_rnduzl_lianbfloe( c_oNrudl_lianbtleer
n      a| l                      ^:
:CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.hs2/s2polygon.cc::34018::
46In file included from :../src/s2/s2polygon.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from   /usr/local/clang/include/absl/container/internal/hash_function_defaults.h340: | 59 :
 /usr/local/clang/include/absl/strings/cord.hf:r1049i:e56n:d  warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
id A b1049s | l F osrtmaattiFcl ubsoho(lS tGreitnFgliaftyASuixn(ka*b salb:s:lc_onrodn_niunltle rsnianlk:,:
C      o| r                                             ^d
Rep/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l#define absl_nonnull _Nonnull
      |                      ^
 rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2region_coverer.cc -o s2/s2region_coverer.o
34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :s2/s2polyline_alignment.cc59::
17/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1275../src/s2/s2polyline_alignment.h::5124::
 In file included from warning: ../src/s2/s2polyline.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
In file included from ../src/s2/base/logging.h: 211275:
 | In file included from i/usr/local/clang/include/absl/log/check.hn:l37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :v21o:
iIn file included from d/usr/local/clang/include/absl/log/internal/check_op.h :C41o:
rIn file included from d/usr/local/clang/include/absl/log/internal/strip.h:::26I:
nIn file included from l/usr/local/clang/include/absl/log/internal/log_message.hi:n53e:
Re/usr/local/clang/include/absl/types/source_location.hp::113::E19m:p lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
eTree  (113C | o r d R e p *c oanbsstl _cnhoanrn*u lalb srle_pn,o
n      n| u                                                  ^l
l f/usr/local/clang/include/absl/base/nullability.hi:l241e:_22n:a mnote: eexpanded from macro 'absl_nonnull' 
=   _241_ | b#udielftiinne_ FaIbLsEl(_)n)o n{n
u      l| l                  ^ 
_No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2polyline_alignment.ccs2/s2polygon.cc::1718:
:
In file included from In file included from ../src/s2/s2polyline_alignment.h../src/s2/s2polygon.h::2429:
:
In file included from In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/container/flat_hash_map.h::3143:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/container/hash_container_defaults.h::2119:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::3759:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_impl.h::128221::
47In file included from :/usr/local/clang/include/absl/log/internal/check_op.h :41warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from  /usr/local/clang/include/absl/log/internal/log_message.h1282: | 53i:
n/usr/local/clang/include/absl/types/source_location.hl:i133n:e25 :v owarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
 Cor  d133: | : I ncloinnsetReexpp:r: SceotnTsrte ec(hCaorr*d Raebps*l _anbosnln_unloln nfuillle _rneapm,e
(      )|                                                ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :n22o:e xnote: cexpanded from macro 'absl_nonnull'e
pt   241{ | 
#      d| e                        ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2polygon.cc:18:
  In file included from 142../src/s2/s2polygon.h | : 29 :
cIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:s43t:
eIn file included from x/usr/local/clang/include/absl/container/hash_container_defaults.hp:r19 :
cIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:s59t:
 /usr/local/clang/include/absl/strings/cord.hc:h1290a:r54*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_no n1290n | uilnll ifnuen cvtoiiodn _Cnoarmde:(:)I ncloinnsetR enpo:e:xSceetpTtr e{e
O      r| E                        ^m
pt/usr/local/clang/include/absl/base/nullability.hy:(241C:o22r:d Rnote: eexpanded from macro 'absl_nonnull'p
*   a241b | s#ld_enfuilnlea balbes lr_enpo,n
n      u| l                                                     ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o257n:n23u:l lnote: 
expanded from macro 'absl_nullable'      
|                      ^  
257 | #define absl_nullable In file included from _s2/s2polyline_alignment.ccN:u17l:
lIn file included from a../src/s2/s2polyline_alignment.hb:l24e:

In file included from       ../src/s2/s2polyline.h| :                      ^31
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2polygon.ccn:e18 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:n43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h :_19N:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.h
:      1301| :                     ^56
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep:In file included from :s2/s2polyline_alignment.ccC:o17m:
mIn file included from i../src/s2/s2polyline_alignment.ht:T24r:
eIn file included from e../src/s2/s2polyline.h(:c31o:
nIn file included from s../src/s2/base/logging.ht: 21C:
oIn file included from r/usr/local/clang/include/absl/log/check.hd:R37e:
pIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_op.h_:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.ha:b26l:
eIn file included from  /usr/local/clang/include/absl/log/internal/log_message.ho:l53d:
_/usr/local/clang/include/absl/types/source_location.hr:e165p:,15
:       | warning:                                                        ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  257165: | 23 :  cnote: oexpanded from macro 'absl_nullable'n
st   257c | h#adre*f ianbes la_bnsoln_nnuullll afbillee __nNaumlel_a b=l e"
"      ;| 
                      ^      
|               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2polygon.cc
:18:
  In file included from 241../src/s2/s2polygon.h | #:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* abIn file included from ss2/s2polyline_alignment.ccl:_17n:
uIn file included from l../src/s2/s2polyline_alignment.hl:a24b:
iIn file included from l../src/s2/s2polyline.hi:t31y:
_In file included from u../src/s2/base/logging.hn:k21n:
oIn file included from w/usr/local/clang/include/absl/log/check.hn: 37a:
rIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.h):;21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h            ^:
41:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/strip.h::28926::
34:/usr/local/clang/include/absl/log/internal/log_message.h :306note: :expanded from macro 'absl_nullability_unknown'3
:   warning: 289 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def  i306n | e   aabbssll__nnuolnlnaublill isttyd_:u:nuknnioqwune __pNturl<lL_ougnMsepsescaigfeiDeadt
a      >|                                   ^d
ata_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2predicates.cc
:18:
  In file included from 241../src/s2/s2predicates.h | :#55d:
eIn file included from f/usr/local/clang/include/absl/flags/flag.hi:n42e:
 In file included from a/usr/local/clang/include/absl/flags/internal/flag.hb:s43l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o499n:n35u:l lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
Non  n499u | l l 
v      o| i                     ^d
 EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volaIn file included from ts2/s2polygon.cci:l18e:
 In file included from M../src/s2/s2polygon.hu:t29e:
xIn file included from */usr/local/clang/include/absl/container/flat_hash_map.h :a43b:
sIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.h_:n19u:
lIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:b59l:
e /usr/local/clang/include/absl/strings/cord.h/:*1505i:g41n:o rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
*/) {} 
1505       | | i                                       ^n
li/usr/local/clang/include/absl/base/nullability.hn:e257 :v23o:i dnote:  expanded from macro 'absl_nullable'C
or  d257: | :#CdoepfyiTnoeA rarbasylI_mnpull(lcahbalre*  _aNbuslll_anbolnen
u      l| l                      ^ 
dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialiIn file included from zs2/s2polygon.cce:(18V:
LIn file included from o../src/s2/s2polygon.hg:S29i:
tIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.h*: 43a:
bIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hl:_19n:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.h :v1672):;41
:       | warning:                                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h :1672241 | :i22n:l inote: nexpanded from macro 'absl_nonnull'e
 v  o241i | d# dCeofridn:e: Aadbvsaln_cneo(nCnhualrlI t_eNroantnourl*l 
a      b| s                     ^l
_nonnull it, size_t n_bytes) {
      |                                         ^
In file included from s2/s2polyline.cc/usr/local/clang/include/absl/base/nullability.h::18241:
:In file included from 22../src/s2/s2polyline.h:: 31note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:  22241:
 | In file included from #/usr/local/clang/include/absl/log/log.hd:e209f:
iIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.he: 20a:
bIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.hl:_63n:
o/usr/local/clang/include/absl/log/internal/vlog_config.hn:n63u:l43l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu   l63l | 
        | e                     ^x
plicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexfLroicekn(dM uitnetx &l omgu_ iAnBtSeLr_nIaNlT:E:RRNeAgLi_sAtTeTrRAInBdUITnEi_tCiAaPlTiUzReE(DV_LBoYg(Stihties*) )a
b      s| l                                                                         ^~~~_
nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de/usr/local/clang/include/absl/synchronization/mutex.hf:i718n:e35 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n718u | l l  e_xNpolnincuiltl 
W      r| i                     ^t
erMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(booIn file included from ls2/s2polyline_simplifier.cc :(18*:
aIn file included from b../src/s2/s2polyline_simplifier.hs:l63_:
nIn file included from o../src/s2/s1chord_angle.hn:n29u:
lIn file included from l../src/s2/s1angle.h In file included from :fs2/s2polyline_alignment.ccu28:n:
17cIn file included from :
)../src/s2/s2point.hIn file included from (:../src/s2/s2polyline_alignment.hv25:o:
24iIn file included from :
d../src/s2/util/coding/coder.hIn file included from *:../src/s2/s2polyline.h 36:a:
31bIn file included from :
s../src/s2/base/casts.hIn file included from l:../src/s2/base/logging.h_34:n:
21uIn file included from :
l/usr/local/clang/include/absl/log/log.hIn file included from l:/usr/local/clang/include/absl/log/check.ha209:b:
37iIn file included from :
l/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from i:/usr/local/clang/include/absl/log/internal/check_impl.ht20:y:
21_In file included from :
u/usr/local/clang/include/absl/log/absl_vlog_is_on.hIn file included from n:/usr/local/clang/include/absl/log/internal/check_op.hk63:n:
41o:
/usr/local/clang/include/absl/log/internal/vlog_config.hwIn file included from :n/usr/local/clang/include/absl/log/internal/strip.h49):,:26
37:
      :| /usr/local/clang/include/absl/log/internal/log_message.h                   ^ :
319warning: :/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]20:
:241 :22warning: :   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 49
note:  | expanded from macro 'absl_nonnull'i
  n319t   |  241 R |  e# dg ecifoisntnesert A anwbcdshIlan_rin_ottni*n auallblis zl_e_Nn(ounVlnlLualoblgl
Se       i| c                     ^to
en*s ta&In file included from b s2/s2predicates.ccvs:)l18;_:

nIn file included from       o../src/s2/s2predicates.h| n:                   ^n55
u:
lIn file included from /usr/local/clang/include/absl/base/nullability.hl/usr/local/clang/include/absl/flags/flag.h: :257v42:):
23;In file included from 
:/usr/local/clang/include/absl/flags/internal/flag.h       :| note: 43expanded from macro 'absl_nullable'                                    ^:


/usr/local/clang/include/absl/synchronization/mutex.h  :257801 | /usr/local/clang/include/absl/base/nullability.h:#:45d241:e: f22warning: i:type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n 
enote:  expanded from macro 'absl_nonnull'  a
801b | s   l 241_C | no#undldleiatfbiilnoene  (_babsl_nonnull _Nonnull
N      | u                     ^l
lable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.hIn file included from :s2/s2polyline_alignment.cc34::
17In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :../src/s2/s2polyline_alignment.h209::
24In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :../src/s2/s2polyline.h20::
31In file included from :
/usr/local/clang/include/absl/log/absl_vlog_is_on.hIn file included from :../src/s2/base/logging.h63::
21/usr/local/clang/include/absl/log/internal/vlog_config.h:
:In file included from 63/usr/local/clang/include/absl/log/check.h::4337::
 In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:   4163:
 | In file included from  /usr/local/clang/include/absl/log/internal/strip.h :e26x:
p/usr/local/clang/include/absl/log/internal/log_message.hl:i321c:i52t:  cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
stex  p321r |  iVnLloignSei tLeo(gcMoensssta gceh&a rL*o gaMbessls_angoen:n:uolple rfa)t
o      r| <                                          ^<
(w/usr/local/clang/include/absl/base/nullability.hc:h241a:r22_:t *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  avb)s l{_
n      o| n                                                   ^n
ull/usr/local/clang/include/absl/base/nullability.h :_257N:o23n:n unote: lexpanded from macro 'absl_nullable'l

      |                        ^257
 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitiIn file included from as2/s2polyline_alignment.ccl:i17z:
eIn file included from (../src/s2/s2polyline_alignment.hV:L24o:
gIn file included from S../src/s2/s2polyline.hi:t31e:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
vIn file included from )/usr/local/clang/include/absl/log/internal/check_op.h;:
41      :
| In file included from                                                            ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/log_message.h241::34022::46 :note:  expanded from macro 'absl_nonnull'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e340f | i n ef raibesnld_ nvoonindu lAlb s_lNFoonrnmualtlF
l      u| s                     ^h
(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
ool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecifIn file included from is2/s2polyline_alignment.cce:d17
:
      In file included from | ../src/s2/s2polyline_alignment.h                                 ^:
24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:In file included from 31s2/s2predicates.cc:: 18:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2predicates.h
:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:  42425:
 | In file included from  /usr/local/clang/include/absl/flags/internal/flag.h :L43o:
g/usr/local/clang/include/absl/synchronization/mutex.hM:e802s:s19a:g ewarning: Ftype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
tal  (802c | o n s t   c h a r *   a bvsoli_dn*o nanbuslll_ nfuilllea,b iilnitt yl_iunnek)n oAwBnS La_rAgT)T;R
I      B| U                  ^T
E_/usr/local/clang/include/absl/base/nullability.hC:O289L:D34;:
       | note:                               ^expanded from macro 'absl_nullability_unknown'

/usr/local/clang/include/absl/base/nullability.h  :289241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea baiblsilt_yn_ounnnkunlolw n_ N_oNnunlull_lu
n      s| p                     ^e
cified
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2predicates.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2predicates.h37::
55In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/flags/flag.h21::
42In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h41::
43In file included from :
/usr/local/clang/include/absl/log/internal/strip.h:/usr/local/clang/include/absl/synchronization/mutex.h26::
814:/usr/local/clang/include/absl/log/internal/log_message.h20::426 :31warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |    426  | C o nLdoigtMieosns(abgoeoFla t(a*la(bcsoln_snto ncnhualrl*  faubnscl)_(nTo*n naublsll _fniullel,a biinlti tlyi_nuen,k
n      o| w                              ^n
),/usr/local/clang/include/absl/base/nullability.h
:      241| :                   ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from In file included from s2/s2predicates.cc../src/s2/s2polyline_alignment.h::1824:
:
In file included from In file included from ../src/s2/s2predicates.h../src/s2/s2polyline.h::5531:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h../src/s2/base/logging.h::4221:
:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/log/check.h::4337:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h814::2142:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.h:warning: 41type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
  /usr/local/clang/include/absl/log/internal/log_message.h814: | 427 : 31C:o nwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
tio  n427( | b o o l   ( * a b s l _ n o n n u l lc ofnusntc )c(hTa*r *a basbls_ln_unlolnanbuillli tfya_iulnukrneo_wmns)g,)
       A| B                                         ^S
L_/usr/local/clang/include/absl/base/nullability.hA:T289T:R34I:B Unote: Texpanded from macro 'absl_nullability_unknown'E
_CO  L289D | ;#
d      e| f                              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241i | l#idteyf_iunnek naobwsnl __nNounlnlu_luln s_pNeocninfuileld

            | |                      ^                                 ^

In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknIn file included from os2/s2polyline_alignment.ccw:n17 :
aIn file included from r../src/s2/s2polyline_alignment.hg:)24;:

In file included from       ../src/s2/s2polyline.h| :               ^31
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21289:
:In file included from 34/usr/local/clang/include/absl/log/check.h:: 37:
note: In file included from expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  In file included from 289/usr/local/clang/include/absl/log/internal/check_op.h | :#41d:
eIn file included from f/usr/local/clang/include/absl/log/internal/strip.hi:n26e:
 /usr/local/clang/include/absl/log/internal/log_message.ha:b436s:l36_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abi  l436i | t y _LuongkMneoswsna g_eNDuelblu_guFnastpaelc(icfoinesdt
       c| h                                 ^a
r* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2predicates.cc:18  :
241In file included from  | ../src/s2/s2predicates.h#:d55e:
fIn file included from i/usr/local/clang/include/absl/flags/flag.hn:e42 :
aIn file included from b/usr/local/clang/include/absl/flags/internal/flag.hs:l43_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n830n:u14l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn  u830l | l 
        |                       ^ 
 bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2polyline_alignment.cc22::17 :
In file included from note: ../src/s2/s2polyline_alignment.hexpanded from macro 'absl_nonnull':
24:
In file included from   ../src/s2/s2polyline.h241: | 31#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41 :
_In file included from N/usr/local/clang/include/absl/log/internal/strip.ho:n26n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l446
:      43| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2predicates.cc446: | 18 :
 In file included from L../src/s2/s2predicates.ho:g55M:
eIn file included from s/usr/local/clang/include/absl/flags/flag.hs:a42g:
eIn file included from Q/usr/local/clang/include/absl/flags/internal/flag.hu:i43e:
t/usr/local/clang/include/absl/synchronization/mutex.hl:y830D:e36b:u gwarning: Ftype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
tal  (830c | o n s t   c hbaoro*l  a(b*salb_snlo_nnnounlnlu lfli lfeu,n
c      )| (                                          ^T
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  i241l | i#tdye_fuinnken oawbns)l,_
n      o| n                                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 289_:N34o:n nnote: uexpanded from macro 'absl_nullability_unknown'l
l
        | 289                     ^ | 
#define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2predicates.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2predicates.h37::
55In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/flags/flag.h21::
42In file included from In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hs2/s2polyline.ccIn file included from ::/usr/local/clang/include/absl/flags/internal/flag.h4118::
:
43In file included from In file included from :
/usr/local/clang/include/absl/log/internal/strip.h../src/s2/s2polyline.h/usr/local/clang/include/absl/synchronization/mutex.h:::2631831:
:
/usr/local/clang/include/absl/log/internal/log_message.h:In file included from :46../src/s2/base/logging.h454::: 2238warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:In file included from 
 /usr/local/clang/include/absl/log/log.hwarning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:831
209 | :
   In file included from 454 /usr/local/clang/include/absl/log/internal/log_impl.h |  :  20  L :
otIn file included from gy/usr/local/clang/include/absl/log/absl_vlog_is_on.hMpe:esnsa63amg:
ee Qau/usr/local/clang/include/absl/log/internal/vlog_config.hbis:el133t:l::y37tF:ya ptwarning: eatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_li
(dceonnts  it133t  | yci<nhTta> r:R*: etaygbipsesl*_t naeorbnsnAlnud_lnIlun lfliialbteii,l
ai      tl| y                                     ^i_
zue/usr/local/clang/include/absl/base/nullability.hn(:VkL241no:og22Swi:nt 
enote:       *expanded from macro 'absl_nonnull'|  
                                             ^a
  b241/usr/local/clang/include/absl/base/nullability.hs | :#l289d_:en34fo:ni nnnote: ueexpanded from macro 'absl_nullability_unknown' lla bvs)l;_
n      o| n                                    ^n
ull /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _NIn file included from os2/s2polyline_alignment.ccn:n17u:
lIn file included from l../src/s2/s2polyline_alignment.h
:      24| :
                     ^In file included from 
../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull fIn file included from is2/s2polyline.ccl:e18,:
 In file included from i../src/s2/s2polyline.hn:t31 :
lIn file included from i../src/s2/base/logging.hn:e22,:

In file included from       /usr/local/clang/include/absl/log/log.h| :                                     ^209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/base/nullability.h::20241:
:In file included from 22/usr/local/clang/include/absl/log/absl_vlog_is_on.h:: 63note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/log/internal/vlog_config.h:  157241: | 11#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne   a157b | sVlL_ongoSnintuel*l  a_bNsoln_nnuullll
a      b| l                     ^e
 SetVModulIn file included from es2/s2polyline_alignment.ccL:i17s:
tIn file included from H../src/s2/s2polyline_alignment.he:a24d:
FIn file included from o../src/s2/s2polyline.hr:T31e:
sIn file included from t../src/s2/base/logging.hO:n21l:
yIn file included from (/usr/local/clang/include/absl/log/check.h
:      37| :
          ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/internal/check_op.h::2341::
 In file included from note: /usr/local/clang/include/absl/log/internal/strip.hexpanded from macro 'absl_nullable':
26:
  /usr/local/clang/include/absl/log/internal/log_message.h257: | 457#:d38e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s457l | _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
  constIn file included from  s2/s2polyline.ccc:h18a:
rIn file included from *../src/s2/s2polyline.h :a31b:
sIn file included from l../src/s2/base/logging.h_:n22o:
nIn file included from n/usr/local/clang/include/absl/log/log.hu:l209l:
 In file included from f/usr/local/clang/include/absl/log/internal/log_impl.ha:i20l:
uIn file included from r/usr/local/clang/include/absl/log/absl_vlog_is_on.he:_63m:
s/usr/local/clang/include/absl/log/internal/vlog_config.hg:)158
:      15| :                                     ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:In file included from 22  s2/s2pointutil.cc:158:  | 18note:  :
expanded from macro 'absl_nonnull' In file included from 
 ../src/s2/s2pointutil.h   :241V25 | L:
#oIn file included from gd../src/s2/s1angle.hSei:tf28ie:
*n In file included from ea../src/s2/s2point.h b:as25bl:
s_In file included from ln../src/s2/util/coding/coder.h_u:nl36ol:
naIn file included from nb../src/s2/base/casts.hul:le36l :
v In file included from _)N;o
n      n| u              ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 257                     ^:
23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_In file included from Ps2/s2polyline_simplifier.ccU:R18E:
_In file included from F../src/s2/s2polyline_simplifier.hU:N63C:
TIn file included from I../src/s2/s1chord_angle.hO:N29 :
cIn file included from o../src/s2/s1angle.hn:s28t:
 In file included from c../src/s2/s2point.hh:a25r:
*In file included from  ../src/s2/util/coding/coder.ha:b36s:
lIn file included from _../src/s2/base/casts.hn:o34n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209 :
MIn file included from a/usr/local/clang/include/absl/log/internal/log_impl.hk:e20C:
hIn file included from e/usr/local/clang/include/absl/log/absl_vlog_is_on.hc:k63F:
ai/usr/local/clang/include/absl/log/internal/vlog_config.hl:S133t:r37i:n gwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                          ^
  133 | /usr/local/clang/include/absl/base/nullability.hi:n241t: 22R:e gnote: iexpanded from macro 'absl_nonnull's
te  r241A | n#ddIenfiin
tei aalb  si289lz | _e#nd(oeVnfLniounglelS  ia_btNseol*n_n nuuallbll
sa      bl| i                     ^_l
intoyn_nuunlIn file included from kls2/s2polyline_alignment.ccn :ov17w):
n;In file included from  
../src/s2/s2polyline_alignment.h_      :N| 24u                                    ^:
l
In file included from l../src/s2/s2polyline.h_:u31n/usr/local/clang/include/absl/base/nullability.h:
s:In file included from p241../src/s2/base/logging.he::c2221i::
f In file included from note: iexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/check.he
:d37  
:
241      In file included from  | | #                                 ^/usr/local/clang/include/absl/log/internal/check_impl.hd
:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e181 :a25b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l181l |   _ N o ncnounlslIn file included from t
s2/s2predicates.cc       :a| 18                     ^b:
s
In file included from l../src/s2/s2predicates.h:::55S:
tIn file included from a/usr/local/clang/include/absl/flags/flag.ht:u42s:
*In file included from  /usr/local/clang/include/absl/flags/internal/flag.ha:b43s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n844o:n10n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
sta  t844u | s ,   c o n sTt*  cahbasrl*_ naobnsnlu_lnlo nonbujlelc tp,r
e      f| i         ^x
);
/usr/local/clang/include/absl/base/nullability.h      :| 241                        ^:
22:In file included from  /usr/local/clang/include/absl/base/nullability.hs2/s2polyline_simplifier.ccnote: ::expanded from macro 'absl_nonnull'24118
::
  22In file included from 241:../src/s2/s2polyline_simplifier.h |  :#note: dexpanded from macro 'absl_nonnull'63e
:
fIn file included from   i../src/s2/s1chord_angle.h241n: | e#29 da:
ebIn file included from fs../src/s2/s1angle.hiln:_e28n :
oanIn file included from bns../src/s2/s2point.hul:l_25ln :
o_nIn file included from Nno../src/s2/util/coding/coder.hun:lnl36u l:
_lNIn file included from 
o../src/s2/base/casts.h      n:| n                     ^34u
:
lIn file included from l/usr/local/clang/include/absl/log/log.h
:      209| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:In file included from In file included from 157s2/s2predicates.ccs2/s2polyline_alignment.cc:::111817::
:
 In file included from In file included from warning: ../src/s2/s2predicates.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2polyline_alignment.h:
:5524:
:
In file included from   In file included from /usr/local/clang/include/absl/flags/flag.h157../src/s2/s2polyline.h: | :V4231L:
:
oIn file included from In file included from g/usr/local/clang/include/absl/flags/internal/flag.h../src/s2/base/logging.hS::i4321t:
:
e/usr/local/clang/include/absl/synchronization/mutex.hIn file included from *:/usr/local/clang/include/absl/log/check.h 845:a:37b45:
s:In file included from l /usr/local/clang/include/absl/log/internal/check_impl.h_warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n21u
:
l/usr/local/clang/include/absl/log/internal/check_op.hl:  a181845b: | l58 e:    Swarning:  etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] t
V Mbo  dou181loelL |  i ( sa b tscHlo:ena:stdtFyo../src/s2/base/logging.h par:eb_T21sile:
d:esIn file included from :/usr/local/clang/include/absl/log/check.hSnt:ttaO37ittn:
luyIn file included from ys<*/usr/local/clang/include/absl/log/internal/check_impl.h(T :a
>21:b:      :
stl| /usr/local/clang/include/absl/log/internal/check_op.hy_          ^:pne
180o::n:n/usr/local/clang/include/absl/base/nullability.h42*u:: l257 al:warning: b 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ssl:
t_a ntnote:   ounexpanded from macro 'absl_nullable'180sn,
 | u Ac  lBlS o257Lmne | _#stthAod eTdT)R(c)fIhBaUr)iT*;nE _
Pea      bUs | R                                            ^El_a
_Fnb/usr/local/clang/include/absl/base/nullability.hUos:NnCl241nT_:uIln22Olu:lN  pcr loennote: afsiexpanded from macro 'absl_nonnull'btlx
) ec ;  h_
241aN       | r#u| *                                                         ^ dl
aebl/usr/local/clang/include/absl/base/nullability.hfsia:ln_b241en l:oane22bns
:ull       _l| note: n                       ^expanded from macro 'absl_nonnull'oMn

anku  el241Cl | h# In file included from edcekf_s2/s2polyline_simplifier.ccFiaN:nieo18l na:
Snturlbls
lIn file included from i      n_../src/s2/s2polyline_simplifier.h| g                     ^n:(

o63      n:
| n                                         ^In file included from u
l../src/s2/s1chord_angle.hl: 29/usr/local/clang/include/absl/base/nullability.h_:
:NIn file included from 241o../src/s2/s1angle.h:n:22n28:u:
In file included from  lIn file included from s2/s2predicates.ccnote: l../src/s2/s2point.h:expanded from macro 'absl_nonnull'
:18
      25:
| :
  In file included from                      ^In file included from 241../src/s2/s2predicates.h
../src/s2/util/coding/coder.h | :#:55d36:
e:
In file included from fIn file included from /usr/local/clang/include/absl/flags/flag.hi../src/s2/base/casts.h:n:42e34:
 :
In file included from aIn file included from /usr/local/clang/include/absl/flags/internal/flag.hbIn file included from /usr/local/clang/include/absl/log/log.h:ss2/s2polyline_alignment.cc:43l:_209:
17n:
:
/usr/local/clang/include/absl/synchronization/mutex.hoIn file included from In file included from :n/usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s2polyline_alignment.h850n:::u202416l:
:
:lIn file included from In file included from   /usr/local/clang/include/absl/log/absl_vlog_is_on.h../src/s2/s2polyline.hwarning: _::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N6331
o:
:
n  n/usr/local/clang/include/absl/log/internal/vlog_config.hIn file included from 850u:../src/s2/base/logging.h | l 158:l 
:21        15 :
 | c:In file included from                      ^o /usr/local/clang/include/absl/log/check.h
nwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s37t
:
 In file included from   T/usr/local/clang/include/absl/log/internal/check_impl.h*158:  | 21a :
In file included from /usr/local/clang/include/absl/log/internal/check_op.hb s2/s2pointutil.cc:s :189l 18:_V:
28nLIn file included from :oo../src/s2/s2pointutil.h ng:warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S25iut
:
leIn file included from l*  ../src/s2/s1angle.h  189:oa | 28bbi:
njlsIn file included from leic../src/s2/s2point.ht_n:e, n25
cu:
      olIn file included from | nl../src/s2/util/coding/coder.h               ^sa:
tb36 /usr/local/clang/include/absl/base/nullability.hal:
:beIn file included from 241s ../src/s2/base/casts.h:lv:22:)36::;:
 S
In file included from note: texpanded from macro 'absl_nonnull'      ../src/s2/base/logging.ha
| :t              ^  21u
241:
s | In file included from /usr/local/clang/include/absl/base/nullability.h*# d/usr/local/clang/include/absl/log/check.he:a:bfs25737iln::
_en23In file included from  oa:/usr/local/clang/include/absl/log/internal/check_impl.hnbn :sulnote: 21expanded from macro 'absl_nullable'l_ln o:

/usr/local/clang/include/absl/log/internal/check_op.hAn:  snS181257utla: | l#t25u sd:_(Ne fcoonwarning: nintype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]uns
tle la   
ba181b      s | s| l l                     ^: :_
 S ntcuaoltnulssta&bIn file included from   ls2/s2predicates.ccasbe:)s  18l{:_:

:NIn file included from       Su../src/s2/s2predicates.h| t                           ^l:a
tl55u/usr/local/clang/include/absl/base/nullability.hsa:
b:*In file included from l241 /usr/local/clang/include/absl/flags/flag.hae::b
2242s      ::
l|  In file included from _                      ^note: /usr/local/clang/include/absl/flags/internal/flag.hexpanded from macro 'absl_nonnull'n
:
o43n:
  n241/usr/local/clang/include/absl/synchronization/mutex.hu | :l#851ld: e45sf:ti anwarning: tetype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u 
sa,b s  cl851o_ | nn so tn  n cu hl albr o*_o Nlao bn(snalub_lsnllo
:n      :n| tu                     ^yl
ple _pirdeefnitxi)t;y
<      T| >                        ^:
:t/usr/local/clang/include/absl/base/nullability.hy:p241e::22::*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln em eatbhsold_)nIn file included from (os2/s2polyline_alignment.cc)n:
n17      u:
| lIn file included from                                             ^l../src/s2/s2polyline_alignment.h
 :_24/usr/local/clang/include/absl/base/nullability.hN:
:oIn file included from 241n../src/s2/s2polyline.h:n:22u31:l:
 lIn file included from note: 
../src/s2/base/logging.hexpanded from macro 'absl_nonnull'      :
| 21                     ^:
  
In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 In file included from /usr/local/clang/include/absl/log/internal/check_op.has2/s2pointutil.cc:b:193s18:l:
21_In file included from :n../src/s2/s2pointutil.h o:warning: n25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:

uIn file included from l../src/s2/s1angle.hl:   28193_:
 | NIn file included from co../src/s2/s2point.hon:nn25su:
tlIn file included from  l../src/s2/util/coding/coder.ha
:b      36s| :
l                     ^In file included from :
../src/s2/base/casts.h::S36t:
aIn file included from t../src/s2/base/logging.hu:s21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:In file included from l181s2/s2predicates.cc ::A5818s::
S In file included from t../src/s2/s2predicates.hawarning: :ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]55u
:
sIn file included from (/usr/local/clang/include/absl/flags/flag.hc:  o42181n:
s | In file included from t /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:855: 34: warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl::S  t855a | t u seOxrp<lTi>c&i ts )C o{n
d      i| t                    ^i
on(c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :b onote: oexpanded from macro 'absl_nonnull'l
* a  b241s | l#_dneofninnuel la bcsoln_dn)o;n
n      u| l                                 ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17 :
In file included from ../src/s2/s2polyline_alignment.h: 24 :
cIn file included from o../src/s2/s2polyline.hn:s31t:
 In file included from a../src/s2/base/logging.hb:s21l:
:In file included from :/usr/local/clang/include/absl/log/check.hS:t37a:
tIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hs:*21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s202l:_46n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll s  t202In file included from a | s2/s2predicates.cc t: u18esx:
p,lIn file included from i ../src/s2/s2predicates.hcc:io55tn:
 sIn file included from Ct/usr/local/clang/include/absl/flags/flag.hh e:cc42kh:
aOIn file included from pr/usr/local/clang/include/absl/flags/internal/flag.hM*:e 43sa:
sbas/usr/local/clang/include/absl/synchronization/mutex.hgl:e_886Bn:uo31in:ln duwarning: letype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lr
 (pcro  en886fs | it x  )ce;hx
apr      l*| i                                                          ^ca
ibts lC/usr/local/clang/include/absl/base/nullability.h_o:nn241od:nin22tu:il olnote: n expanded from macro 'absl_nonnull'(e
cxopn  rst241te |  x#Ttd*)e ;fa
ib      nse| l                                              ^_a
nbos/usr/local/clang/include/absl/base/nullability.hnl:n_241un:lo22ln: n ounote: blexpanded from macro 'absl_nonnull'jl
) 
_        N| o241                              ^n | 
n#udle/usr/local/clang/include/absl/base/nullability.hlf:
i241n      :e| 22                      ^:a
 bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _NonnulIn file included from ls2/s2pointutil.cc
:      18| :
                     ^In file included from 
../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline_alignment.cc:17  :
189In file included from  | ../src/s2/s2polyline_alignment.hi:n24l:
iIn file included from n../src/s2/s2polyline.he: 31c:
oIn file included from n../src/s2/base/logging.hs:t21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37::
:In file included from S/usr/local/clang/include/absl/log/internal/check_impl.ht:a21t:
u/usr/local/clang/include/absl/log/internal/check_op.hs:*209 :a15b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u209l | l In file included from   s2/s2predicates.ccAc:so18Sn:
tsIn file included from at../src/s2/s2predicates.ht :uc55sh:
(aIn file included from cr/usr/local/clang/include/absl/flags/flag.ho*:n 42sa:
tb In file included from sa/usr/local/clang/include/absl/flags/internal/flag.hlb:_s43nl:
o:/usr/local/clang/include/absl/synchronization/mutex.hn::nS896ut:la31lt: u Nswarning: e&type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w 
Sst)r   i{896n
 | g       (|  )                           ^e;
x
p      /usr/local/clang/include/absl/base/nullability.hl| :i              ^241c
:i22t:/usr/local/clang/include/absl/base/nullability.h  :C241note: o:expanded from macro 'absl_nonnull'n22
d:i   t241note: i | expanded from macro 'absl_nonnull'o#
nd(e  cf241oi | nn#sedt e afTbi*sn lea_ bnasoblns_nlnu_olnnlon nu_nlNulol nlon bu_jlN)lo

n      n      | u|                               ^l                     ^
l

      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2predicates.cc193: | 18c:
oIn file included from n../src/s2/s2predicates.hs:t55 :
aIn file included from b/usr/local/clang/include/absl/flags/flag.hs:l42::
:In file included from S/usr/local/clang/include/absl/flags/internal/flag.ht:a43t:
u/usr/local/clang/include/absl/synchronization/mutex.hs:*922 :a48b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onnu  l922l |   A ssSttaattiucs (bcooonls tG uaabrsaln:In file included from t:s2/s2polyline_alignment.cceS:et17da:
EtIn file included from qu../src/s2/s2polyline_alignment.hus:aO24lr:
(<In file included from cT../src/s2/s2polyline.ho>:n&31s :
tsIn file included from  )../src/s2/base/logging.hC :o{21n
:
d      In file included from i| /usr/local/clang/include/absl/log/check.ht                    ^:i
37o:
nIn file included from /usr/local/clang/include/absl/base/nullability.h*/usr/local/clang/include/absl/log/internal/check_impl.h: :241a21:b:
22: s/usr/local/clang/include/absl/log/internal/check_op.hnote: l:expanded from macro 'absl_nonnull'_226
n:u59  l:241l  | awarning: #btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]dl
eef ian  ,e226
  |       av| bo                                               ^is
dl _/usr/local/clang/include/absl/base/nullability.hMn:ao257kn:en23Cu:hl elnote: c expanded from macro 'absl_nullable'k_
ONp  Vo257an | ln#uudeleSlft
ir      ni| en                     ^ g
a(bsstld_:n:uolsltarbelaem &_ Nousl,l acbolnes
t       | v                      ^o
id* absl_nuIn file included from ls2/s2predicates.ccl:a18b:
lIn file included from e../src/s2/s2predicates.h :p55):
;In file included from In file included from 
s2/s2pointutil.cc/usr/local/clang/include/absl/flags/flag.h      ::| 1842                                                          ^:
:

In file included from In file included from ../src/s2/s2pointutil.h/usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/base/nullability.h:::2543257:
:
:In file included from /usr/local/clang/include/absl/synchronization/mutex.h23../src/s2/s1angle.h:::923 28::
note: 48In file included from expanded from macro 'absl_nullable':../src/s2/s2point.h
 :25warning:   :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257In file included from 
 | ../src/s2/util/coding/coder.h#:d36  e:
923fIn file included from  | i../src/s2/base/casts.h n:e  36 a:
b In file included from  s../src/s2/base/logging.h l: _21 n:
 uIn file included from  l/usr/local/clang/include/absl/log/check.h l: a37 b:
 lIn file included from  e/usr/local/clang/include/absl/log/internal/check_impl.h  : _21 N:
 u/usr/local/clang/include/absl/log/internal/check_op.h l: l202 a: b46 l: e  
warning:        type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
                       ^ 
c  o202n | s t  eCxopnldiictiito nC*h eacbksOlp_MneuslslaagbelBeu ibl)d;e
r      (| c                                               ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 257c:h23a:r *note:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  eaxbpsrlt_enxutl)l;a
b      l| e                                             ^ 
_N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*abslIn file included from _s2/s2pointutil.ccn:u18l:
lIn file included from a../src/s2/s2pointutil.hb:l25e:
In file included from  In file included from s2/s2polyline_alignment.cce../src/s2/s1angle.hv::a1728l:
:
_In file included from In file included from )../src/s2/s2polyline_alignment.h../src/s2/s2point.h(:c:o2425n:
:
sIn file included from In file included from t../src/s2/s2polyline.h../src/s2/util/coding/coder.h ::C3136o:
:
nIn file included from In file included from d../src/s2/base/logging.h../src/s2/base/casts.hi::t2136i:
:
oIn file included from In file included from n/usr/local/clang/include/absl/log/check.h../src/s2/base/logging.h*:: 3721a:
:
bIn file included from In file included from s/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/check.hl::_2137n:
:
oIn file included from /usr/local/clang/include/absl/log/internal/check_op.hn/usr/local/clang/include/absl/log/internal/check_impl.h:n:276u21:l:
13l:/usr/local/clang/include/absl/log/internal/check_op.h) : 209warning: =:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 15
n:u lwarning:   ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p276
t | rc;  o
209n       | s|  t         ^  
cvoo/usr/local/clang/include/absl/base/nullability.hin:ds257*t:  23ac:bh sanote: lrexpanded from macro 'absl_nullable'_*n
 ual  bl257sa | lb#_ldneeo fnoinpnueelr laa tbNoserlw<_S<nt(urslitlndag:b(:l)oe;s 
t_      rN| eu              ^al
ml&a/usr/local/clang/include/absl/base/nullability.h,b:
l241      e:
| 22            ^      :
|                        ^
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:23  :241In file included from   | s2/s2predicates.ccnote: #:expanded from macro 'absl_nullable'd18
e:
f  In file included from i257../src/s2/s2predicates.hn | :e#55 d:
aeIn file included from bf/usr/local/clang/include/absl/flags/flag.hsi:ln42_e:
n In file included from oa/usr/local/clang/include/absl/flags/internal/flag.hnb:ns43ul:
l_/usr/local/clang/include/absl/synchronization/mutex.hln: u948_l:Nl48oa:nb nlwarning: uetype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
l_
N        u| 948l                     ^l | 
a b lbeo
o      l|                        ^(
*absl_nullabIn file included from ls2/s2polyline_alignment.cce: 17e:
vIn file included from a../src/s2/s2polyline_alignment.hl:_24):
(In file included from c../src/s2/s2polyline.ho:n31s:
tIn file included from  ../src/s2/base/logging.hC:o21n:
dIn file included from i/usr/local/clang/include/absl/log/check.ht:i37o:
nIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_277n:o50n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
) =   277n | u l l p t r ; 
        |                                                 ^  
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
       |                      ^
                        In file included from cs2/s2predicates.cco:n18s:
tIn file included from  ../src/s2/s2predicates.hv:o55i:
dIn file included from */usr/local/clang/include/absl/flags/flag.h :a42b:
sIn file included from l/usr/local/clang/include/absl/flags/internal/flag.h_:n43u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:a956b:l52e:  vwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ue)  ;956 | 
        | s                                                 ^t
atic/usr/local/clang/include/absl/base/nullability.h :b257o:o23l:  Cnote: aexpanded from macro 'absl_nullable's
tAn  d257C | a#ldleFfuinncet iaobns(lc_onnusltl aCbolned i_tNiuolnl*a balbes
l      _| n                      ^o
nnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2polyline_alignment.cc_:n17o:
nIn file included from n../src/s2/s2polyline_alignment.hu:l24l:
 In file included from _../src/s2/s2polyline.hN:o31n:
nIn file included from u../src/s2/base/logging.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                     ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278In file included from  | s2/s2predicates.ccc:o18n:
sIn file included from t../src/s2/s2predicates.h :v55o:
iIn file included from d/usr/local/clang/include/absl/flags/flag.h*: 42a:
bIn file included from s/usr/local/clang/include/absl/flags/internal/flag.hl:_43n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l958a:b50l:e  warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
era  t958o | r < <s(tsattdi:c: obsotorle aCma&s,t AsntddC:a:lnluMleltphtord_(tc)o;n
s      t|              ^C
on/usr/local/clang/include/absl/base/nullability.hd:i257t:i23o:n *note:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  ca)b;s
l      _| n                                                 ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :_ Nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e#
d      e| f                      ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* abIn file included from ss2/s2polyline_alignment.ccl:_17n:
oIn file included from n../src/s2/s2polyline_alignment.hn:u24l:
lIn file included from  ../src/s2/s2polyline.hs:e31l:
fIn file included from )../src/s2/base/logging.h :{21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                                 ^:
37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22:/usr/local/clang/include/absl/log/internal/check_op.h :292note: :expanded from macro 'absl_nonnull'13
:   warning: 241 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n292eIn file included from  |  cs2/s2pointutil.ccao:bns18sl:
t_In file included from  n../src/s2/s2pointutil.hco:hn25an:
ruIn file included from *l../src/s2/s1angle.h l:a 28b_:
sNIn file included from lo_../src/s2/s2point.hnnn:ou25nl:
nlIn file included from u
../src/s2/util/coding/coder.hl      :l| 36                      ^:
o
In file included from p../src/s2/base/casts.he:r36a:
tIn file included from o../src/s2/base/logging.hr:<21<:
(In file included from s/usr/local/clang/include/absl/log/check.ht:d37::
:In file included from b/usr/local/clang/include/absl/log/internal/check_impl.ha:s21i:
c_/usr/local/clang/include/absl/log/internal/check_op.ho:s226t:r59e:a mIn file included from warning: <s2/s2predicates.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c:
h18a:
rIn file included from ,../src/s2/s2predicates.h :  T55226r:
 | aIn file included from vi/usr/local/clang/include/absl/flags/flag.hot:is42d>:
 &In file included from M,/usr/local/clang/include/absl/flags/internal/flag.ha
:k      43eCh| e:
            ^c
/usr/local/clang/include/absl/synchronization/mutex.hk:O975/usr/local/clang/include/absl/base/nullability.hp::V31241a::l 22u:warning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
tnote: expanded from macro 'absl_nonnull'r
  i975n |   g 241(  | si#tnddle:if:nioens etv roaeibadsm l&R_ enoaosdn,Cn aucllollnb sa_tcN kov(noTni*ud l*al b
as      bl| s_                     ^ln
_onnunlullalb lcea lpl)b;a
c      k| )                                                          ^ In file included from 
cs2/s2polyline_alignment.cco:n17/usr/local/clang/include/absl/base/nullability.hs:
:tIn file included from 257 ../src/s2/s2polyline_alignment.h:{:23
24:      :
 | In file included from note:                               ^../src/s2/s2polyline.hexpanded from macro 'absl_nullable'
:
31/usr/local/clang/include/absl/base/nullability.h:
:In file included from   241../src/s2/base/logging.h257:: | 2221#::
d In file included from e/usr/local/clang/include/absl/log/check.hnote: f:expanded from macro 'absl_nonnull'i37
n:
eIn file included from    /usr/local/clang/include/absl/log/internal/check_impl.h241a: | b21#s:
dl/usr/local/clang/include/absl/log/internal/check_op.he_:fn293iu:nl49el: a abwarning: bltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]se
l __nN  ou293nl | nl ua lb ll  e _
 N       o|  n                      ^ n
 u l l 
        |                       ^ 
                   cIn file included from os2/s2predicates.ccn:s18t:
 In file included from c../src/s2/s2predicates.hh:a55r:
*In file included from  /usr/local/clang/include/absl/flags/flag.ha:b42s:
lIn file included from _/usr/local/clang/include/absl/flags/internal/flag.hn:o43n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l979l:)43;:
       | warning:                                                 ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :97922 | :   note: sexpanded from macro 'absl_nonnull't
at  i241c |  #bdoeofli nAel waabysslT_rnuoen(ncuolnls t_ NCoonnnduiltli
o      n| *                     ^ 
absl_nullable) { return In file included from ts2/s2polyline_alignment.ccr:u17e:
;In file included from  ../src/s2/s2polyline_alignment.h}:
24      :
| In file included from                                           ^../src/s2/s2polyline.h
:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h257::2123:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21257:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d295e:f20i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n295u | lcloanbslte  s_iNgunlelda bclhea
r      *|                        ^a
bsl_nonnull operIn file included from as2/s2pointutil.cct:o18r:
<In file included from <../src/s2/s2pointutil.h(:s25t:
dIn file included from :../src/s2/s1angle.h::b28a:
sIn file included from i../src/s2/s2point.hc:_25o:
sIn file included from t../src/s2/util/coding/coder.hr:e36a:
mIn file included from <../src/s2/base/casts.hc:h36a:
rIn file included from ,../src/s2/base/logging.h :T21r:
aIn file included from i/usr/local/clang/include/absl/log/check.ht:s37>:
&In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                   ^
/usr/local/clang/include/absl/log/internal/check_op.h:276/usr/local/clang/include/absl/base/nullability.h::13241:: 22:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241276 |  | #cdoenfsitn ev oaibds*l _anbosnln_unlull l_aNbolnen uolple
r      a| t                     ^o
r<<(std::ostream&In file included from ,s2/s2polyline_alignment.cc
:      17| :
            ^In file included from 
../src/s2/s2polyline_alignment.h:24:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2polyline.h257::3123:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/check.h:  37257:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e296 :a63b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  a296b | l e   _ N u l l a b l e 
        |                        ^ 
           In file included from  s2/s2pointutil.cc : 18 :
 In file included from  ../src/s2/s2pointutil.h : 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.hc:o25n:
sIn file included from t../src/s2/util/coding/coder.h :s36i:
gIn file included from n../src/s2/base/casts.he:d36 :
cIn file included from h../src/s2/base/logging.ha:r21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l277):;50
:       | warning:                                                               ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :27722 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l lc
o      n| s                     ^t
 void* absl_nullable valuIn file included from es2/s2polyline_alignment.cc):;17
:
      In file included from | ../src/s2/s2polyline_alignment.h                                                 ^:
24:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline.h::25731::
23In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/check.h:37  :
257In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
f/usr/local/clang/include/absl/log/internal/check_op.hi:n298e: 22a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a298b | lceo n_sNtu lulnasbilgen
e      d|                        ^c
har* absl_nonnull operIn file included from as2/s2pointutil.cct:o18r:
<In file included from <../src/s2/s2pointutil.h(:s25t:
dIn file included from :../src/s2/s1angle.h::b28a:
sIn file included from i../src/s2/s2point.hc:_25o:
sIn file included from t../src/s2/util/coding/coder.hr:e36a:
mIn file included from <../src/s2/base/casts.hc:h36a:
rIn file included from ,../src/s2/base/logging.h :T21r:
aIn file included from i/usr/local/clang/include/absl/log/check.ht:s37>:
&In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                     ^/usr/local/clang/include/absl/log/internal/check_op.h
:278:/usr/local/clang/include/absl/base/nullability.h13::241 :22warning: : type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'absl_nonnull'
    278241 |  | c#odnesfti nveo iadb*s la_bnsoln_nnuullll a_bNloen nouplelr
a      t| o                     ^r
<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed chIn file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |   In file included from  s2/s2predicates.cc : 18 :
 In file included from  ../src/s2/s2predicates.h : 55 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 43 :
  /usr/local/clang/include/absl/synchronization/mutex.h : 1033 : 20 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1033  |      v o i d   Wcaonsitt (uMnustiegxn*e da bcshla_rn*o nanbuslll_ nmoun)n u{l
l      )| ;                   ^

      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 1069s2/s2polyline_alignment.cc::3217::
 In file included from ../src/s2/s2polyline_alignment.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]24
:
In file included from ../src/s2/s2polyline.h:31 :
1069In file included from  | ../src/s2/base/logging.h : 21b:
oIn file included from o/usr/local/clang/include/absl/log/check.hl: 37W:
aIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.ht:W21i:
t/usr/local/clang/include/absl/log/internal/check_op.hh:D323e:a46d:l iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(Mut  e323x | *   afbrsile_nndo nvnouildl  Ambus,l Faobrsmla:t:FTliumseh (dSetardilnignief)y S{i
n      k| *                               ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   s241i | n#kd,e
f      i| an                                             ^er 
*a ba/usr/local/clang/include/absl/base/nullability.hsb:ls241_l:n_22on:no nnnote: unexpanded from macro 'absl_nonnull'lu
ll l  _ 241No | op#nednreuafltilon
re<       <| a(                     ^bs
stld_:n:obnansuilcl_ o_sNtornenauml<lc
h      a| r                     ^,
 TraIn file included from is2/s2predicates.cct:s18>:
&In file included from ,../src/s2/s2predicates.h
:      55| :
                   ^In file included from 
/usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/base/nullability.h::43241:
:22/usr/local/clang/include/absl/synchronization/mutex.h:: 1088:note: 35expanded from macro 'absl_nonnull':
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
241 | #d e1088f | i n ev oaibds lE_nnaobnlneuDlelb u_gNLoongn(ucloln
s      t|                       ^c
har* absl_nullable name);
      |                                   ^In file included from 
s2/s2pointutil.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2pointutil.h::2325::
 In file included from ../src/s2/s1angle.hnote: :expanded from macro 'absl_nullable'28
:
In file included from ../src/s2/s2point.h  :25725 | :
#In file included from d../src/s2/util/coding/coder.he:f36i:
nIn file included from e../src/s2/base/casts.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:a296b:l63e:
       | warning:                       ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  296 |             In file included from  s2/s2predicates.cc : 18 :
 In file included from  ../src/s2/s2predicates.h : 55 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 43 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1091 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  c o1091n | s t  bsoiogln eWda icthCaorm*m oanb(sMlu_tneoxn*n ualbls)l;_
n      o| n                                                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241m:u22t:e xnote: ,expanded from macro 'absl_nonnull'

      |                            ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:In file included from 25s2/s2predicates.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2predicates.h:
:In file included from 55../src/s2/s2point.h:
:In file included from 25/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42../src/s2/util/coding/coder.h:
:In file included from 36/usr/local/clang/include/absl/flags/internal/flag.h:
:In file included from 43../src/s2/base/casts.h:
:36/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1093../src/s2/base/logging.h::4621::
 In file included from /usr/local/clang/include/absl/log/check.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21 :
1093 | /usr/local/clang/include/absl/log/internal/check_op.h : 298v:o22i:d  warning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
move  (298b | acsoen_sitn tuenrsniagln:e:dP ecrhTahrr*e aadbSsyln_cnho*n naublsll _onpoenrnautlolr <s<)(;s
t      d| :                                             ^:
ba/usr/local/clang/include/absl/base/nullability.hs:i241c:_22o:s tnote: rexpanded from macro 'absl_nonnull'e
am  <241c | h#adre,f iTnrea iatbss>l&_,n
o      n| n                     ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* In file included from as2/s2polyline_alignment.ccb:s17l:
_In file included from n../src/s2/s2polyline_alignment.ho:n24n:
uIn file included from l../src/s2/s2polyline.hl:)31;:

In file included from       ../src/s2/base/logging.h| :                                                                  ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:428:  44241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine   a428b | sAlB_SnLo_nAnTuTlRlI B_UNToEn_nRuElIn file included from Tls2/s2predicates.ccU
:R      18N| :
S                     ^In file included from _
../src/s2/s2predicates.hN:O55N:
NIn file included from U/usr/local/clang/include/absl/flags/flag.hL:L42 :
cIn file included from o/usr/local/clang/include/absl/flags/internal/flag.hn:s43t:
 /usr/local/clang/include/absl/synchronization/mutex.hc:h1109a:r34*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n o1109n | n u lelx pMlaikceiCth eMcuktOepxSLtorciknMga(y
b      e| (                                           ^M
ut/usr/local/clang/include/absl/base/nullability.he:x241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef imnue) 
a      b| s                                 ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  _note: Nexpanded from macro 'absl_nullable'o
nn  u257l | l#
d      e| f                     ^i
ne absl_nullable _In file included from Ns2/s2polyline_alignment.ccu:l17l:
aIn file included from b../src/s2/s2polyline_alignment.hl:e24
:
      In file included from | ../src/s2/s2polyline.h                      ^:
31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1In file included from  s2/s2predicates.ccv:118,:
 In file included from T../src/s2/s2predicates.h2: 55v:
2In file included from ,/usr/local/clang/include/absl/flags/flag.h :c42o:
nIn file included from In file included from s/usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
s2/s2pointutil.ccIn file included from :s2/s2predicates.cc18::
18In file included from :
../src/s2/s2pointutil.hIn file included from :../src/s2/s2predicates.h25::
55In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/flags/flag.h28::
42In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h25::
43In file included from :
../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/synchronization/mutex.h36::
1132In file included from :../src/s2/base/casts.h10::36 :
In file included from warning: ../src/s2/base/logging.h:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h: 371132:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :M21u:
t/usr/local/clang/include/absl/log/internal/check_op.he:x323*: 46a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a323b | l e  fcroinesntd  mvuo_i;d
       A| b         ^s
lFo/usr/local/clang/include/absl/base/nullability.hr:m257a:t23F:l unote: sexpanded from macro 'absl_nullable'h
(S  t257r | i#ndgeiffiynSei nakb*s la_bnsull_lnaobnlneu l_lN uslilnakb,l
e      
|                                                    ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutetxLo cckh(aMru*t eaxb*s la_bnsoln_nnuolnln uelxlp rmtue)x
t      )|                                        ^A
BSL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_  N241O | I#NdLeIfNiEn;e
       a| b                              ^s
l_non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       MutIn file included from es2/s2polyline_alignment.ccx:&17 :
mIn file included from u../src/s2/s2polyline_alignment.h :A24B:
SIn file included from L../src/s2/s2polyline.h_:I31N:
TIn file included from E../src/s2/base/logging.hR:N21A:
LIn file included from _/usr/local/clang/include/absl/log/check.hA:T37T:
RIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hB:U21T:
E/usr/local/clang/include/absl/log/internal/check_op.h_:C432A:P13T:U Rwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]D
_BY  (432t | hciosn)s,t
       c| h                                                    ^~~~a
r* absl_nonnull MakeCheckOpString(T1/usr/local/clang/include/absl/synchronization/mutex.h :v11661:,39 :T 2warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
2,
      |              ^1166
 |  /usr/local/clang/include/absl/base/nullability.h :e241x:p22l:i cnote: iexpanded from macro 'absl_nonnull't
 R  e241l | e#adseafbilneeM uatbesxlL_oncokn(nMuultle x_*N oanIn file included from bns2/s2pointutil.ccsu:ll18_l:
n
In file included from o      ../src/s2/s2pointutil.hn| :n                     ^25u
:
lIn file included from l../src/s2/s1angle.h :m28u:
,In file included from  ../src/s2/s2point.hc:In file included from o25s2/s2polyline_alignment.ccn:
:sIn file included from 17t../src/s2/util/coding/coder.h:
 :In file included from C36../src/s2/s2polyline_alignment.ho:
:nIn file included from 24d../src/s2/base/casts.h:
i:In file included from t36../src/s2/s2polyline.hi:
:oIn file included from 31n../src/s2/base/logging.h:
&:In file included from  21../src/s2/base/logging.hc:
:oIn file included from 21n/usr/local/clang/include/absl/log/check.h:
d:In file included from )37/usr/local/clang/include/absl/log/check.h
:
:      In file included from 37| /usr/local/clang/include/absl/log/internal/check_impl.h:
                                      ^:In file included from 
21/usr/local/clang/include/absl/log/internal/check_impl.h:
:/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h21:::
241428:/usr/local/clang/include/absl/log/internal/check_op.h:22:44:433: : 56note: :warning: expanded from macro 'absl_nonnull' type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 |   #428d |   eA433fB | iS nL e_  A aT bT sR lI _B nU oT nE n_ uR lE lT  U _R NN oS n_ nN uO lN lN 
U       L | L                      ^  
c o n s t   c h a r *   a b sclo_nnsotn ncuhlalr *M aakbesClh_encoknOnpuSltlr ienxgp(r
t      e| In file included from x                                           ^s2/s2predicates.cct
:)18 :
/usr/local/clang/include/absl/base/nullability.h{In file included from :
../src/s2/s2predicates.h241      ::| 5522                                                       ^:
:
In file included from  /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/base/nullability.hnote: ::expanded from macro 'absl_nonnull'42241
:
:In file included from 22/usr/local/clang/include/absl/flags/internal/flag.h:  : 24143 | note: :
#expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.hd
e:f  1179i241:n | 10e#: d aewarning: bftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]sil
n_en  oa1179nb | ns ul l_Mlnu ot_neNnxou*nl nlau bl_slNl
o_      nn| nu                     ^ul
llla
b      l| e                     ^ 
mu_;In file included from 
s2/s2pointutil.cc      :| 18         ^:

In file included from ../src/s2/s2pointutil.h:/usr/local/clang/include/absl/base/nullability.h25::
257In file included from :../src/s2/s1angle.h23::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nullable':
25:
In file included from   ../src/s2/util/coding/coder.h257: | 36#:
dIn file included from e../src/s2/base/casts.hf:i36n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:
 /usr/local/clang/include/absl/log/internal/check_op.h_:N429u:l31l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      |                       ^  
429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2polyline_alignment.ccu:l17l:

In file included from       ../src/s2/s2polyline_alignment.h| :                     ^24
:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LIn file included from Os2/s2pointutil.ccG:_18I:
NIn file included from T../src/s2/s2pointutil.hE:R25N:
AIn file included from L../src/s2/s1angle.h_:D28E:
FIn file included from I../src/s2/s2point.hN:E25_:
MIn file included from A../src/s2/util/coding/coder.hK:E36_:
CIn file included from H../src/s2/base/casts.hE:C36K:
_In file included from O../src/s2/base/logging.hP:_21S:
TIn file included from R/usr/local/clang/include/absl/log/check.hI:N37G:
_In file included from E/usr/local/clang/include/absl/log/internal/check_impl.hX:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:(432b:o13o:l )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      | ^
  432 | /usr/local/clang/include/absl/log/internal/check_op.hc:o449n:s31t:  cnote: hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
r*   a449b | s l _enxotnenrunl lt eMmapkleaCthee cckoOnpsStt rcihnagr(*T 1a bvs1l,_ nTo2n nvu2l,l
       M| a            ^k
eC/usr/local/clang/include/absl/base/nullability.hh:e241c:k22O:p Snote: texpanded from macro 'absl_nonnull'r
in  g241( |  # d e\f
i      n| e                              ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h367 warnings generated.
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from :n/usr/local/clang/include/absl/flags/flag.h453:n:42u1:
l:lIn file included from  
/usr/local/clang/include/absl/flags/internal/flag.h      :warning: | 43type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^:


/usr/local/clang/include/absl/synchronization/mutex.h:1212:52:   453warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL_ L1212O | Gb_oIoNlT ECRoNnAdIn file included from Lis2/s2pointutil.cc_t:Di18Eo:
FnIn file included from I:../src/s2/s2pointutil.hN::EC25_a:
MsIn file included from At../src/s2/s1angle.hKA:En28_d:
CCIn file included from Ha../src/s2/s2point.hEl:Cl25KM:
_eIn file included from tOh../src/s2/util/coding/coder.hPo:_d36S(:
TcIn file included from Ro../src/s2/base/casts.hIn:Ns36Gt:
_ In file included from EC../src/s2/base/logging.hXo:Tn21Ed:
RiIn file included from Nt/usr/local/clang/include/absl/log/check.h(i:uo37in:
n*In file included from  ta/usr/local/clang/include/absl/log/internal/check_impl.h6b:4s21_l:
t_/usr/local/clang/include/absl/log/internal/check_op.h)n:;o433
n:n      u56| l:^l 
 warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])/usr/local/clang/include/absl/log/internal/check_op.h
 :{449
:      31|   :                                                   ^433 
 | note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' /usr/local/clang/include/absl/base/nullability.h
 : 241 :   22449 : |     note:   expanded from macro 'absl_nonnull'e 
x t   e 241r  | n #  dt ee fm ip nl ea  t ae b  sc lo _n ns ot n  nc uh la lr  * _  Na ob ns nl u_ lncloo
nn      ns| ut                     ^l 
lc hMaark*e Cahbesclk_OnpoSntnruilnlg (e x p r\t
e      x| t                              ^)
 {
/usr/local/clang/include/absl/base/nullability.h      :| 241                                                       ^:
22: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsIn file included from uls2/s2predicates.ccl_:ln18 o:
_nIn file included from Nn../src/s2/s2predicates.hou:nl55nl:
u In file included from l_/usr/local/clang/include/absl/flags/flag.hlN:
o42      n:
| nIn file included from                      ^u/usr/local/clang/include/absl/flags/internal/flag.h
l:l43
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221In file included from  | s2/s2polyline_alignment.ccb:o17o:
lIn file included from  ../src/s2/s2polyline_alignment.hC:o24n:
dIn file included from i../src/s2/s2polyline.ht:i31o:
nIn file included from :../src/s2/base/logging.h::C21a:
sIn file included from t/usr/local/clang/include/absl/log/check.hA:n37d:
CIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hl:l21F:
u/usr/local/clang/include/absl/log/internal/check_op.hn:c453t:i1o:n (warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
ns/usr/local/clang/include/absl/log/internal/check_op.ht: 450C:o25n:d inote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
on*   450a | b s l _ n o nxn,u lxl,  cc)o n{s
t       | c                                                     ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l#)d
e      f| i                        ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from In file included from s2/s2polyline_alignment.cc../src/s2/s1angle.h::1728:
:
In file included from In file included from ../src/s2/s2polyline_alignment.h../src/s2/s2point.h::2425:
:
In file included from In file included from In file included from ../src/s2/s2polyline.h../src/s2/util/coding/coder.hs2/s2predicates.cc:::313618:
:
:
In file included from In file included from In file included from ../src/s2/base/logging.h../src/s2/base/casts.h../src/s2/s2predicates.h:::213655:
:
:
In file included from In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/base/logging.h/usr/local/clang/include/absl/flags/flag.h:::372142:
:
:
In file included from In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/flags/internal/flag.h:::213743:
:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/synchronization/mutex.h:::454211230::
:112/usr/local/clang/include/absl/log/internal/check_op.h:::  451warning: :warning: 1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
4541230 |  | A   B 451S  | L A_bBLoSOoLGl__ LI(ON*GTa_EbIRsNNlTA_ELnR_oNDnAEnLFu_IlDNlEE F_fIMuNAnEKc_E)M_(ACTKH*EE _CaCKbH_sEOlCP_K_n_SuOTlPRl_IaSNbTGiR_lIEiNXtGTy_E_ERuXNnT(kEfnRloNow(anbt)o),o;
l
      )      | ;|            ^
^
      
| /usr/local/clang/include/absl/base/nullability.h^/usr/local/clang/include/absl/log/internal/check_op.h:
:241449::/usr/local/clang/include/absl/log/internal/check_op.h2231:::449  :note: 31note: expanded from macro 'absl_nonnull':expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
 
note:   expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'241  
 | 449# | d   e 449fe | ix nt eee rxantb estrlen_m nptolenamntpuell alct oe_n Nscoton nncsuhtla lrc
*h       a| ar                     ^b*
s la_bnsoln_In file included from nns2/s2predicates.ccuo:lnl18n :
uMIn file included from la../src/s2/s2predicates.hlk: e55MC:
ahIn file included from ke/usr/local/clang/include/absl/flags/flag.hec:Ck42hO:
epIn file included from cS/usr/local/clang/include/absl/flags/internal/flag.hkt:Or43pi:
Sn/usr/local/clang/include/absl/synchronization/mutex.htg:r(1230i :n 34g :(\  
warning:        type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
\                              ^

       | 1230/usr/local/clang/include/absl/base/nullability.h                              ^ | :
 241 :/usr/local/clang/include/absl/base/nullability.h 22: :241b :o22onote: :lexpanded from macro 'absl_nonnull'  
note: (expanded from macro 'absl_nonnull'  *
241a |   b#241sd | le#_fdnieonfnein nuaelb lsa lbf_sunlno_cnn)no(unTln*lu  la_lbN so_lnN_nonunulnllul
la      lb| 
i                     ^      l
| i                     ^t
y_unknowIn file included from nIn file included from s2/s2pointutil.cc)s2/s2polyline_alignment.cc:,:
1817      :
:
| In file included from In file included from                                  ^../src/s2/s2pointutil.h../src/s2/s2polyline_alignment.h
::25/usr/local/clang/include/absl/base/nullability.h24:
::
In file included from 289In file included from ../src/s2/s1angle.h:../src/s2/s2polyline.h:34:28:31:
 :
In file included from In file included from note: ../src/s2/s2point.h../src/s2/base/logging.hexpanded from macro 'absl_nullability_unknown'::
2521:
:
In file included from   In file included from ../src/s2/util/coding/coder.h289/usr/local/clang/include/absl/log/check.h: | :36#37:
d:
In file included from eIn file included from f../src/s2/base/casts.h/usr/local/clang/include/absl/log/internal/check_impl.hi::n3621e:
:
 In file included from /usr/local/clang/include/absl/log/internal/check_op.ha../src/s2/base/logging.h:b:454s21:l:
1_In file included from :n/usr/local/clang/include/absl/log/check.h u:warning: l37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:

aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hi/usr/local/clang/include/absl/log/internal/check_impl.hl::i45021t::
y25/usr/local/clang/include/absl/log/internal/check_op.h_::u 451n:knote: 1nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':o
 wwarning: n  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 450
_ | N/usr/local/clang/include/absl/log/internal/check_op.h u: l450 l: _25 u: n xsnote: ,pexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' e
xc,i   f450ci | oe nd s
 t        |  c                                 ^ h
xa,r *x ,a bcsoln_snto ncnhualrlIn file included from *)s2/s2predicates.cc
 :      a18| b:
                        ^sIn file included from 
l../src/s2/s2predicates.h_:/usr/local/clang/include/absl/base/nullability.hn55:o:
241nIn file included from :n/usr/local/clang/include/absl/flags/flag.h22u::l42 l:
note: )In file included from expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/flags/internal/flag.h
      :| 43                          ^:
241
/usr/local/clang/include/absl/synchronization/mutex.h | :/usr/local/clang/include/absl/base/nullability.h#1231:d:241e8:f:22i :nwarning:  etype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]note:  
expanded from macro 'absl_nonnull'a
b s  1231l241 | _ |  n# od ne nfTui*ln lea  b_asNblos_nlnn_uunllollna
nb      ui| ll                     ^li
 t_yN_ounnnkunlolw
n       | a                     ^r
g)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: In file included from note: s2/s2polyline_alignment.ccexpanded from macro 'absl_nullability_unknown':
17:
In file included from   ../src/s2/s2polyline_alignment.h289: | 24#:
define absl_nullability_In file included from unk../src/s2/s2polyline.hn:o31w:
nIn file included from  ../src/s2/base/logging.h_:N21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h_:u37n:
sIn file included from p/usr/local/clang/include/absl/log/internal/check_impl.he:c21i:
fi/usr/local/clang/include/absl/log/internal/check_op.he:d455
:      1| :                                 ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extIn file included from es2/s2predicates.ccr:n18 :
tIn file included from e../src/s2/s2predicates.hm:p55l:
aIn file included from t/usr/local/clang/include/absl/flags/flag.he: 42c:
oIn file included from n/usr/local/clang/include/absl/flags/internal/flag.hs:t43 :
c/usr/local/clang/include/absl/synchronization/mutex.hh:a1241r:*12 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no n1241n | u l l   MbaokoelC h(e*cakbOsplS_tnroinnngu(l l   f\u
n      c| )                              ^(
T* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  i241l | i#tdye_fuinnken oawbns)l,_
n      o| n           ^n
ull/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_In file included from ns2/s2polyline_alignment.cco:n17n:
uIn file included from l../src/s2/s2polyline_alignment.hl: 24_:
NIn file included from o../src/s2/s2polyline.hn:n31u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2predicates.cc::45518::
1In file included from :../src/s2/s2predicates.h :55warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/flags/flag.h:42/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 450/usr/local/clang/include/absl/flags/internal/flag.h::2543::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'1241
:34:   450 | warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
    1241  | x ,   x ,b ocooln s(t* acbhsalr_*n oanbnsull_ln ofnunnucl)l()T
*       | a                        ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: iexpanded from macro 'absl_nonnull'l
it  y241_ | u#ndkenfoiwnne) ,a
b      s| l                                 ^_
no/usr/local/clang/include/absl/base/nullability.hn:n289u:l34l:  _note: Nexpanded from macro 'absl_nullability_unknown'o
nn  u289l | l#
d      e| f                     ^i
ne absl_nullability_unknown _Null_uIn file included from ns2/s2polyline_alignment.ccs:p17e:
cIn file included from i../src/s2/s2polyline_alignment.hf:i24e:
dIn file included from 
../src/s2/s2polyline.h      :| 31                                 ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1In file included from : In file included from warning: s2/s2pointutil.ccIn file included from s2/s2predicates.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::s2/s2polyline_simplifier.cc
1818::
:
18In file included from In file included from   :
../src/s2/s2pointutil.h../src/s2/s2predicates.h456In file included from :: | ../src/s2/s2polyline_simplifier.h2555A::
:
B63In file included from In file included from S:
../src/s2/s1angle.h/usr/local/clang/include/absl/flags/flag.hLIn file included from ::_../src/s2/s1chord_angle.h2842L::
:
O29In file included from In file included from G:
../src/s2/s2point.h/usr/local/clang/include/absl/flags/internal/flag.h_In file included from ::I../src/s2/s1angle.h2543N::
:
T28In file included from /usr/local/clang/include/absl/synchronization/mutex.hE:
../src/s2/util/coding/coder.h:RIn file included from :1242N../src/s2/s2point.h36:A::
44L25In file included from :_:
../src/s2/base/casts.h DIn file included from :warning: E../src/s2/util/coding/coder.h36type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]F::

I36In file included from N:
 ../src/s2/base/logging.hEIn file included from 1242:_../src/s2/base/casts.h | 21 M::
 A 34In file included from K E:
/usr/local/clang/include/absl/log/check.ht_yIn file included from :CpH/usr/local/clang/include/absl/log/log.h37eEn::
Ca209In file included from Km:
/usr/local/clang/include/absl/log/internal/check_impl.h_eOIn file included from : Pa/usr/local/clang/include/absl/log/internal/log_impl.h21_b::
SsT22/usr/local/clang/include/absl/log/internal/check_op.hlR::
:I:NIn file included from 452tGy_/usr/local/clang/include/absl/log/internal/log_message.h:pEe:1X_Ti47:EdRe:
 NnIn file included from warning: (t/usr/local/clang/include/absl/log/internal/structured_proto.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]cih:
tay27r<):
T  >;:In file included from 452
:/usr/local/clang/include/absl/log/internal/proto.h |       AtB:| y^pS34
eL*:
/usr/local/clang/include/absl/log/internal/check_op.h_ :aLb/usr/local/clang/include/absl/types/span.h449OsG::l__21231InN::uTl22 ElR:note: aN expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'bAi
lwarning: L  _iDtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]449tEy
 | F_ Iu NneEx_  ktMe212nAoKwEr_ | nnC 
 Ht       EeCu| mKs                                           ^p_li
OaPn/usr/local/clang/include/absl/base/nullability.ht_g:eS 289 Tcp:oRo34niI:NsGn_ ttEnote: X eexpanded from macro 'absl_nullability_unknown'TcEr
hRaN   r(=289*i   | n#ta6Tdb4s*e_fli t_nna)beo nan;usb
slll      l_ n_| M^aukn
lelu/usr/local/clang/include/absl/log/internal/check_op.hCahl:beicl449lkia:Otb31pySi:_turl niinote: knntexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'goy
(w_ nu     n449_\Nk | n
u lo       lw| e_xn                              ^;u
t
enr      /usr/local/clang/include/absl/base/nullability.hsnp| : et                     ^241ce
:im22fp:ile d/usr/local/clang/include/absl/base/nullability.hanote: t
e:expanded from macro 'absl_nonnull'       289
| c  :                                 ^o241n34
 | s#:td  ecnote: fexpanded from macro 'absl_nullability_unknown'hian
re*    a289abb | ssl#l__dnneoofnnnIn file included from inus2/s2predicates.ccnuel :llla18b  _MNa:
sokIn file included from eln_../src/s2/s2predicates.hnCnh:euu55cll:
lk
lIn file included from O      a/usr/local/clang/include/absl/flags/flag.hp| b:S                     ^i42t
rl:
iiIn file included from nt/usr/local/clang/include/absl/flags/internal/flag.hgIn file included from y:(s2/s2polyline_alignment.cc _43: u:
17 n:
/usr/local/clang/include/absl/synchronization/mutex.h\kIn file included from :
n../src/s2/s2polyline_alignment.h1249      o::| w248                              ^n:
 :
In file included from _ ../src/s2/s2polyline.h/usr/local/clang/include/absl/base/nullability.hN:warning: :u31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241l:

:lIn file included from 22 _../src/s2/base/logging.h:1249u:  | n21note:  s:
expanded from macro 'absl_nonnull' /usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2region_intersection.cc -o s2/s2region_intersection.o
pIn file included from 
 e/usr/local/clang/include/absl/log/check.h   c:T241i37* |  f:
i#adbesfIn file included from eli_/usr/local/clang/include/absl/log/internal/check_impl.hndn
:oen      21 na| :
ubl                                 ^/usr/local/clang/include/absl/log/internal/check_op.hsll
: _456on:bo1jn:en cuwarning: tltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],l

       /usr/local/clang/include/absl/log/internal/check_op.h_| :N       ^450o
:n25n:/usr/local/clang/include/absl/base/nullability.hu :l241lIn file included from note: :
s2/s2polyline_simplifier.ccexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'22      :
:| 18                        ^:
450note: 
expanded from macro 'absl_nonnull'In file included from  | 
 ../src/s2/s2polyline_simplifier.h   :241 63 |  #:
 d In file included from ex../src/s2/s1chord_angle.hf,:i n29xe:
In file included from ,  In file included from s2/s2pointutil.ccacb../src/s2/s1angle.h:osn:18ls_28:
tn :
In file included from ocnIn file included from ../src/s2/s2pointutil.hhna../src/s2/s2point.h:url*:25l  25:
a_:
In file included from bNsIn file included from l../src/s2/s1angle.ho../src/s2/util/coding/coder.h_:nno:28nnu36:
nlu:
In file included from ll
In file included from ../src/s2/s2point.hl      )../src/s2/base/casts.h:| 
:25                     ^      34:

| :
In file included from                         ^In file included from ../src/s2/util/coding/coder.h
/usr/local/clang/include/absl/log/log.h::/usr/local/clang/include/absl/base/nullability.h36209::
:
241In file included from In file included from :../src/s2/base/casts.h/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from 22::22s2/s2predicates.cc:36:
: :
In file included from 18note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/log_message.h:
../src/s2/base/logging.h
:In file included from :47  ../src/s2/s2predicates.h21:
241::
In file included from  | 55#In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:
d/usr/local/clang/include/absl/log/check.he:27:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_id:ent37i:
tIn file included from y/usr/local/clang/include/absl/log/internal/check_impl.h<:T21>:
::/usr/local/clang/include/absl/log/internal/check_op.ht:y452p:e1::: *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl/usr/local/clang/include/absl/log/internal/check_op.h_:n450o:n25n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' m
ethod  )450( | ) ) 
        |                                            ^ 
x, x,/usr/local/clang/include/absl/base/nullability.h :c241o:n22s: tnote:  expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_)n
o      n| n                        ^u
ll _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
      expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from f  s2/s2predicates.cc453: | i18An:
eB In file included from Sa../src/s2/s2predicates.hLb:s_l55L:
_OnGIn file included from _o/usr/local/clang/include/absl/flags/flag.hnI:nN42uT:
ElIn file included from Rl/usr/local/clang/include/absl/flags/internal/flag.hN :A_L43_ND:
oE/usr/local/clang/include/absl/synchronization/mutex.hnF:nI1259uN:lE14l_:
M A      warning: K| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E                     ^
_
CH E1259C | K _ O P _cSoTnRsItN GT_*E XaTbEsRlN_(nuoinnntu6l4In file included from l_s2/s2polyline_alignment.cc t:o)17b;:
j
eIn file included from       c../src/s2/s2polyline_alignment.h| t:^,24

:
      /usr/local/clang/include/absl/log/internal/check_op.hIn file included from | :../src/s2/s2polyline.h             ^449:
:3131:
:/usr/local/clang/include/absl/base/nullability.hIn file included from  :../src/s2/base/logging.h241note: ::expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'2122
:
:In file included from    /usr/local/clang/include/absl/log/check.hnote: 449expanded from macro 'absl_nonnull': | 
37 :
  In file included from  241e/usr/local/clang/include/absl/log/internal/check_impl.h | x#:dt21eef:
ri/usr/local/clang/include/absl/log/internal/check_op.hnn :et457 e:ma1pb:ls alwarning: t_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]en 
coonn  ns457ut | l Alc Bh_SaNLro_*nLn OuaGlbl_
sI      lN| _T                     ^nE
oRnNnAuLl_lD EMFaIkNeEC_hMeAcKkEO_pCSHtEIn file included from rCis2/s2predicates.ccKn:_g18(O:
 PIn file included from  ../src/s2/s2predicates.h_ :S\55T
:
R      In file included from I| /usr/local/clang/include/absl/flags/flag.hN                              ^G:_
42E:
/usr/local/clang/include/absl/base/nullability.hXIn file included from :T/usr/local/clang/include/absl/flags/internal/flag.hE241:R:43N22:
(:u/usr/local/clang/include/absl/synchronization/mutex.hn s:note: i1260gexpanded from macro 'absl_nonnull':n
e43d:    c241warning: h | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a#r
d)e;f 
i1260n       | e|    ^a 
b s/usr/local/clang/include/absl/log/internal/check_op.hbl:o_449on:lo n31(n:au blnote: slexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l 
:_:Nt  oyn449pne | u_ l iled
xe      ntt| ei                     ^t
y<T>::type::*In file included from  s2/s2pointutil.cca:b18s:
lIn file included from _../src/s2/s2pointutil.hn:o25n:
nIn file included from u../src/s2/s1angle.hl:l28 :
mIn file included from e../src/s2/s2point.ht:h25o:
dIn file included from )../src/s2/util/coding/coder.h(:)36
:
      In file included from | ../src/s2/base/casts.h                                          ^:
36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e453f:i1n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n450o:n25n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
_N  o450n | n u l l 
        | x                     ^,
 x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:43:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RIn file included from es2/s2pointutil.ccg:i18s:
tIn file included from e../src/s2/s2pointutil.hr:M25u:
tIn file included from e../src/s2/s1angle.hx:P28r:
oIn file included from f../src/s2/s2point.hi:l25e:
rIn file included from (../src/s2/util/coding/coder.hv:o36i:
dIn file included from  ../src/s2/base/casts.h(:*36a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hf:n21):
(/usr/local/clang/include/absl/log/internal/check_op.hi:n454t:614:_ twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
ait  _454c | yAcBlSeLs_)L)O;G
_      I| N                                  ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22D:E Fnote: Iexpanded from macro 'absl_nonnull'N
E_  M241A | K#Ed_eCfHiEnCeK _aObPs_lS_TnRoInNnGu_lElX T_ENRoNn(nfullola
t      | )                     ^;

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern templaIn file included from ts2/s2predicates.cce: 18c:
oIn file included from n../src/s2/s2predicates.hs:55t:
 In file included from c/usr/local/clang/include/absl/flags/flag.hh:a42r:
*In file included from  /usr/local/clang/include/absl/flags/internal/flag.ha:b43s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n1293o:n33n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Mak e1293 | Cvhoeicdk ORpeSgtirsitnegr(M u t e\x
T      r| a                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: cnote: eexpanded from macro 'absl_nonnull'r
(v  o241i | d# d(e*faibnsel _anbosnln_unloln nfunl)l( c_oNIn file included from onnul/usr/local/clang/include/absl/log/internal/proto.hl:
34      :
|                      ^/usr/local/clang/include/absl/types/span.h
:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   usIn file included from is2/s2pointutil.ccn:g18 :
cIn file included from o../src/s2/s2pointutil.hn:s25t:
In file included from _../src/s2/s1angle.hp:o28i:
nIn file included from t../src/s2/s2point.he:r25 :
=In file included from  ../src/s2/util/coding/coder.hc:o36n:
sIn file included from t../src/s2/base/casts.h :T36*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hi:l21i:
t/usr/local/clang/include/absl/log/internal/check_op.hy:_454u:n1k:n owarning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
;
/usr/local/clang/include/absl/log/internal/check_op.h      :| 450                                 ^:
25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
/usr/local/clang/include/absl/base/nullability.h:289:  34450: |   note:  expanded from macro 'absl_nullability_unknown' 
     x289, |  #xd,e fcionnes ta bcshla_rn*u lalbasbli_lniotnyn_uulnlk)n
o      w| n                        ^ 
_Nu/usr/local/clang/include/absl/base/nullability.hl:l241_:u22n:s pnote: eexpanded from macro 'absl_nonnull'c
if  i241e | d#
d      e| f                                 ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
nIn file included from ../src/s2/s2point.h:25:
In file included from s../src/s2/util/coding/coder.ht: 36:
cIn file included from h../src/s2/base/casts.h:a36r:
In file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 /usr/local/clang/include/absl/log/internal/check_op.hm:s458g:,1:
       | warning:                                 ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  /usr/local/clang/include/absl/base/nullability.h458: | 241A:B22S:L _note: Lexpanded from macro 'absl_nonnull'O
G_I  N241T | E#RdNeAfLi_nDeE FaIbNsEl__MnAoKnEn_uClHlE C_KN_oOnPn_uSlTlR
I      N| G                     ^_
EXTERN(const sIn file included from ts2/s2predicates.ccd::18::
sIn file included from t../src/s2/s2predicates.hr:i55n:
gIn file included from &/usr/local/clang/include/absl/flags/flag.h):;42
:
      In file included from | /usr/local/clang/include/absl/flags/internal/flag.h^:
43:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::4491293::3162::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  449  | 1293  |  veoxitde rRne gtiesmtpelraMtuet ecxoTnrsatc ecrh(avro*i da b(s*la_bnsoln_nnuolnln uMlalk efCnh)e(cckoOnpsStt rcihnagr(*   a b\s
l      _| n                              ^o
n/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :m snote: gexpanded from macro 'absl_nonnull',

        | 241                                                             ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2pointutil.ccIn file included from :s2/s2predicates.cc18::
18In file included from :
../src/s2/s2pointutil.hIn file included from :../src/s2/s2predicates.h25::
55In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/flags/flag.h28::
42In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h25::
43In file included from :
../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/synchronization/mutex.h36::
1294In file included from :../src/s2/base/casts.h62::36 :
In file included from warning: ../src/s2/base/logging.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h: 371294:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 458 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 450 : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |              x ,   x ,   c o n s    constt  cvhoaird**  aabbssll__nnoonnnnuullll) 
o      b| j                        ^,

      /usr/local/clang/include/absl/base/nullability.h| :                                                             ^241
:22/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from In file included from ../src/s2/s1angle.hs2/s2predicates.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2predicates.h::2555:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/flags/flag.h::3642:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/flags/internal/flag.h::3643:
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/synchronization/mutex.h::211309:
:In file included from 35/usr/local/clang/include/absl/log/check.h:: 37:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
 /usr/local/clang/include/absl/log/internal/check_op.h1309: | 459v:o1i:d  warning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
gis  t459e | rACBoSnLd_VLaOrGT_rIaNcTeErR(NvAoLi_dD E(F*IaNbEs_lM_AnKoEn_nCuHlElC Kf_nO)P(_
S      T| R                                  ^I
NG/usr/local/clang/include/absl/base/nullability.h_:E241X:T22E:R Nnote: (expanded from macro 'absl_nonnull'c
on  s241t |  #adbesfli:n:es tarbisnlg__nvoinenwu&l)l; 
_      N| o^n
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l449
:      31| :                     ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
In file included from s2/s2predicates.cc  :44918 | :
 In file included from  ../src/s2/s2predicates.he:x55t:
eIn file included from r/usr/local/clang/include/absl/flags/flag.hn: 42t:
eIn file included from m/usr/local/clang/include/absl/flags/internal/flag.hp:l43a:
t/usr/local/clang/include/absl/synchronization/mutex.he: 1310c:o17n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har *1310  | a b s l _cnoonnsntu lclh aMra*k eaCbhselc_knOopnSnturliln gm(s g ,  \c
o      n| s                              ^t
 v/usr/local/clang/include/absl/base/nullability.ho:i241d:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_  n241o | n#nduelfli ncev )a)b;s
l      _| n                ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnullIn file included from  s2/s2pointutil.cc_:N18o:
nIn file included from n../src/s2/s2pointutil.hu:l25l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:In file included from 36s2/s2predicates.cc:
:In file included from 18../src/s2/base/casts.h:
:In file included from 36../src/s2/s2predicates.h:
:In file included from 55../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/flags/internal/flag.h:
:In file included from 43/usr/local/clang/include/absl/log/internal/check_impl.h:
:/usr/local/clang/include/absl/synchronization/mutex.h21::
1310/usr/local/clang/include/absl/log/internal/check_op.h::47459:: 1warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310/usr/local/clang/include/absl/log/internal/check_op.h | : 450 : 25 :c onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
t   c450h | a r *   a b sxl,_ nxo,n ncuolnls tm scgh,a rc*o nasbts lv_oniodn*n ualbls)l
_      n| o                        ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :c22v:) )note: ;expanded from macro 'absl_nonnull'

      |                                                 ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
rsn tle_mnpolnantuel lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2pointutil.cc:  18241:
 | In file included from ../src/s2/s2pointutil.h#:d25e:
fIn file included from ../src/s2/s1angle.hi:n28e:
 In file included from ../src/s2/s2point.ha:b25s:
lIn file included from _../src/s2/util/coding/coder.hn:o36n:
nIn file included from u../src/s2/base/casts.hl:l36 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460In file included from  | s2/s2polyline_alignment.ccA:B17S:
LIn file included from _../src/s2/s2polyline_alignment.hL:O24G:
_In file included from I../src/s2/s2polyline.hN:T31E:
RIn file included from N../src/s2/base/logging.hA:L21_:
DIn file included from E/usr/local/clang/include/absl/log/check.hF:I37N:
EIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hM:A21K:
E/usr/local/clang/include/absl/log/internal/check_op.h_:C457H:E1C:K _warning: Otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
_S/usr/local/clang/include/absl/log/internal/check_op.hT:R450I:N25G:_ Enote: Xexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'T
ER  N450( | c o n s t   cxh,a rx*,  acbosnls_tn ocnhnaurl*l )a;b
s      | l_^n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u449l:l31):
       note: | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'                        ^

/usr/local/clang/include/absl/base/nullability.h  :449241 | : 22 :e xnote: texpanded from macro 'absl_nonnull'e
rn   241t | e#mdpelfaitnee  caobnsslt_ ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^M
akeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2polyline_alignment.cc22::17 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2polyline_alignment.h
:24  :
241In file included from  | ../src/s2/s2polyline.h#:d31e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 458_:N1o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^458
 | ABSIn file included from Ls2/s2pointutil.cc_:L18O:
GIn file included from _../src/s2/s2pointutil.hI:N25T:
EIn file included from R../src/s2/s1angle.hN:A28L:
_In file included from D../src/s2/s2point.hE:F25I:
NIn file included from E../src/s2/util/coding/coder.h_:M36A:
KIn file included from E../src/s2/base/casts.h_:C36H:
EIn file included from C../src/s2/base/logging.hK:_21O:
PIn file included from _/usr/local/clang/include/absl/log/check.hS:T37R:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hG:_21:
E/usr/local/clang/include/absl/log/internal/check_op.hX:T460E:R1N:( cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st   s460t | dA:B:SsLt_rLiOnGg_&I)N;T
E      | ^
R/usr/local/clang/include/absl/log/internal/check_op.hN:A449L:_31D:E Fnote: Iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'N
E_M  A449K | E _ CeHxEtCeKr_nO Pt_eSmTpRlIaNtGe_ EcXoTnEsRtN (cchoanrs*t  acbhsalr_*n oanbnsull_ln oMnankuelClh)e;c
k      O| p^S
tr/usr/local/clang/include/absl/log/internal/check_op.hi:n450:g25(:   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'\

      |                                 ^450
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :x ,note:  expanded from macro 'absl_nonnull'x
,   c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_)N
o      n| n                        ^u
l/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2polyline_alignment.cc_:n17o:
nIn file included from n../src/s2/s2polyline_alignment.hu:l24l:
 In file included from _../src/s2/s2polyline.hN:o31n:
nIn file included from u../src/s2/base/logging.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                     ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |   In file included from  s2/s2pointutil.cc : 18 :
xIn file included from ,../src/s2/s2pointutil.h :x25,:
 In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from  ../src/s2/s2point.hc:h25a:
rIn file included from *../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
)In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                        ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241/usr/local/clang/include/absl/log/internal/check_op.h::22461:: 1:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 |   #461d | eAfBiSnLe_ LaObGs_lI_NnToEnRnNuAlLl_ D_NonIn file included from nus2/s2polyline_simplifier.ccl:l18
:
      In file included from | ../src/s2/s2polyline_simplifier.h                     ^:
63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from In file included from s2/s2polyline_alignment.cc/usr/local/clang/include/absl/log/internal/proto.h::1734:
:
In file included from ../src/s2/s2polyline_alignment.h/usr/local/clang/include/absl/types/span.h::24733:
:In file included from 31../src/s2/s2polyline.h:: 31warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
EFINE  _M241A | KE#_dCeHfEiCnKe_ OaPb_sSlT_RnIoNnGn_uElXlT E_RNNo(n
n      u| l^l

      |                      ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTER21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_ENAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
XTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
In file included from s2/s2pointutil.cc:/usr/local/clang/include/absl/base/nullability.h18::
241In file included from :../src/s2/s2pointutil.h22::25 :
In file included from note: ../src/s2/s1angle.hexpanded from macro 'absl_nonnull':
28:
  In file included from 241../src/s2/s2point.h | :#25d:
eIn file included from f../src/s2/util/coding/coder.hi:n36e:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
503      :| 1                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absIn file included from ls2/s2predicates.cc_:n18u:
lIn file included from l../src/s2/s2predicates.ha:b55l:
e/usr/local/clang/include/absl/flags/flag.h :n118a:m29e:# #warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl(    118  |  v o i d   S e t F l a g ( a b s\l
:      :| F                               ^l
ag/usr/local/clang/include/absl/base/nullability.h<:T257>:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf ifnlea ga,b sclo_nnsutl lVa&b lve)  _{N
u      l| l                            ^a
bl/usr/local/clang/include/absl/base/nullability.he:
241      :| 22                      ^:
 note: In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IIn file included from Ms2/s2polygon.ccP:L18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:
       | note:                      ^expanded from macro 'absl_nullable'

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from s2/s2polyline_alignment.cc  :48917 | :
 In file included from  ../src/s2/s2polyline_alignment.h : 24 :
 In file included from c../src/s2/s2polyline.ho:n31s:
tIn file included from  ../src/s2/base/logging.hT:121&:
 In file included from v/usr/local/clang/include/absl/log/check.h1:,37 :
cIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:s21t:
 /usr/local/clang/include/absl/log/internal/check_op.hT:2504&: 1v:2 ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
on/usr/local/clang/include/absl/log/internal/check_op.hs:t497 :c32h:a rnote: *expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
absl  _497n | o n niunllli neex pcrotnesxtte)x p{r   c o n s\t
       c| h                                              ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dneafmien#e# Iambpsll(_ n o n n u l l   _ N o n n u l l 
        | \                     ^

      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, constIn file included from  s2/s2pointutil.ccc:h18a:
rIn file included from *../src/s2/s2pointutil.h :a25b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l25l:
 In file included from e../src/s2/util/coding/coder.hx:p36r:
tIn file included from e../src/s2/base/casts.hx:t36):
 In file included from {../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 504 :\1
:       | warning:                                   ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241497::2232::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  241 | #  d497e | f i nien laibnsel _cnoonnsntuelxlp r_ Ncoonnnsutl lc
h      a| r                     ^*
 absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2pointutil.cc::2218::
 In file included from ../src/s2/s2pointutil.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f25i:
nIn file included from e../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullaIn file included from bs2/s2polyline_alignment.ccl:e17 :
nIn file included from a../src/s2/s2polyline_alignment.hm:e24#:
#In file included from I../src/s2/s2polyline.hm:p31l:
(In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 506 : 1\:
       | warning:                                ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::497257::3223::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'absl_nullable'

  257   | 497# | d e fiinnlei naeb sclo_nnsutlelxapbrl ec o_nNsutl lcahbalre*
       a| b                      ^s
l_nullable nameIn file included from #s2/s2pointutil.cc#:I18m:
pIn file included from l../src/s2/s2pointutil.h(: 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h\:
36      :
| In file included from                                ^../src/s2/base/logging.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/check.h257::3723:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:note: 21expanded from macro 'absl_nullable':

/usr/local/clang/include/absl/log/internal/check_op.h:  505257: | 1#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne/usr/local/clang/include/absl/log/internal/check_op.h :a489b:s47l:_ nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
lab  l489e |   _ N u l l acbolnes
t       | T                      ^1
& v1, coIn file included from ns2/s2polyline_alignment.ccs:t17 :
TIn file included from 2../src/s2/s2polyline_alignment.h&: 24v:
2In file included from ,../src/s2/s2polyline.h :c31o:
nIn file included from s../src/s2/base/logging.ht: 21c:
hIn file included from a/usr/local/clang/include/absl/log/check.hr:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n506n:u1l:l  warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
pr/usr/local/clang/include/absl/log/internal/check_op.ht:e498x:t35):  {note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
     \498
 |        |                                                ^ 
  /usr/local/clang/include/absl/base/nullability.h :i241n:t22 :v 1note: ,expanded from macro 'absl_nonnull' 
in  t241  | v#2d,e fcionnes ta bcshla_rn*o nanbuslll_ n_oNnonnunlull le
x      p| r                     ^t
ext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507/usr/local/clang/include/absl/log/internal/check_op.h::1498:: 35:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
/usr/local/clang/include/absl/log/internal/check_op.h:497:32:   498 | note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
      i497n | t   vi1n,l iinnet  cvo2n,s tceoxnpsrt  ccohnasrt*  cahbasrl*_ naobnsnlu_lnlu lelxapbrltee xnta)m e{# # I m p l (                      \ 
        |                                    ^ 
   /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                               ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:23  :241  | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en oanbnsull_ln u_lNloanbnluel l_
N      u| l                     ^l
able
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2polygon.cc21::
18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 513../src/s2/s2polygon.h::1729::
 In file included from warning: /usr/local/clang/include/absl/container/flat_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
45:
  513/usr/local/clang/include/absl/container/internal/raw_hash_map.h | : 143 : 59 :c owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
t cha  r143* |   a b s l _ n o n n u l l   e x p r tfeaxlts)e;,
       f| a                ^l
se/usr/local/clang/include/absl/base/nullability.h,: 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eSfIiNnGeL Ea_bAsRlG_(n)o)n;n
u      l| l                                                          ^ 
_No/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:n120u:l9l:
       | note:                      ^macro 'ABSL_INTERNAL_X' defined here

  120 | #define ABSLIn file included from _s2/s2polyline_alignment.ccI:N17T:
EIn file included from R../src/s2/s2polyline_alignment.hN:A24L:
_In file included from X../src/s2/s2polyline.h(:F31u:
nIn file included from c../src/s2/base/logging.h,: 21C:
aIn file included from l/usr/local/clang/include/absl/log/check.hl:e37e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hK:Q21u:
a/usr/local/clang/include/absl/log/internal/check_op.hl:,514 :V13Q:u awarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 KV  a514l | uceo,n sVtV aclhuaer,*  Taabisll,_ n.u.l.l)a b\l
e       | C        ^h
eckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defi/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:e142 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ulla  b142l | e   _ANBuSlLl_aIbNlTeE
R      N| A                      ^L
_X(insIn file included from es2/s2polyline_alignment.ccr:t17_:
oIn file included from r../src/s2/s2polyline_alignment.h_:a24s:
sIn file included from i../src/s2/s2polyline.hg:n31,:
 In file included from i../src/s2/base/logging.hn:s21e:
rIn file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.ht:_21o:
r/usr/local/clang/include/absl/log/internal/check_op.h_:a515s:s47i:g nwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
mpl  ,515  | c o n s tc&o,n scto ncshta&r,*
       a| b  ^s
l_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:u133l:l52a:b lnote: eexpanded from macro 'ABSL_INTERNAL_X' 
s1,   133c | o n s t   c h a r *  AaBbSsLl__InNuTlElRaNbAlLe_ AsT2T,R
I      B| U                                              ^T
E_/usr/local/clang/include/absl/base/nullability.hC:A257P:T23U:R Enote: Dexpanded from macro 'absl_nullable'_
BY  (257t | h#idse)f)i,n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
\      
|                             ^| 
                                                   ^
In file included from s2/s2polyline_alignment.cc/usr/local/clang/include/absl/container/internal/common.h::1732:
:In file included from 9../src/s2/s2polyline_alignment.h:: 24:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here../src/s2/s2polyline.h
:31:
In file included from    ../src/s2/base/logging.h32: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
L/usr/local/clang/include/absl/log/internal/check_op.h_:I516N:T17E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_I  F516_ | f a l s ec(oinfs_ts acthiasrf*i eadb,s l._.n.o)n n_u_lVlA _eAxRpGrSt_e_x
t      )| ;        ^

      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2polygon.cc  :24118 | :
#In file included from d../src/s2/s2polygon.he:f29i:
nIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.h :a45b:
s/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:_142n:o3n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
 _N  o142n | n u lAlB
S      L| _                     ^I
NTERNAL_X(insIn file included from es2/s2polyline_alignment.ccr:t17_:
oIn file included from r../src/s2/s2polyline_alignment.h_:a24s:
sIn file included from i../src/s2/s2polyline.hg:n31,:
 In file included from i../src/s2/base/logging.hn:s21e:
rIn file included from t/usr/local/clang/include/absl/log/check.h_:o37r:
_In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hs:s21i:
g/usr/local/clang/include/absl/log/internal/check_op.hn:_517i:m13p:l ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
ons  t517& | ,c ocnosnts tc&h,a
r      *|    ^a
bs/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:_135n:u16l:l anote: bexpanded from macro 'ABSL_INTERNAL_X'l
e C  h135e | c k s t r c a s e c mtphtirsu)e)I)m pAlB(S
L      _| A            ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Lnote: Iexpanded from macro 'absl_nullable'F
ET  I257M | E#_dBeOfUiNnDe  {a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
   \In file included from 
s2/s2polyline_alignment.cc      :| 17               ^:

In file included from ../src/s2/s2polyline_alignment.h:/usr/local/clang/include/absl/container/internal/common.h24::
32In file included from :../src/s2/s2polyline.h9::31 :
In file included from note: ../src/s2/base/logging.hmacro 'ABSL_INTERNAL_IF_false' defined here:
21:
In file included from /usr/local/clang/include/absl/log/check.h   :3237 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 518A:B17S:L _warning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
TER  N518A | L _ I F _cfoanlsste (cihfa_rs*a taibssfli_endu,l l.a.b.l)e  _s_1V,A _cAoRnGsSt_ _c
h      a| r        ^*
 abslIn file included from _s2/s2pointutil.ccn:u18l:
lIn file included from a../src/s2/s2pointutil.hb:l25e:
 In file included from s../src/s2/s1angle.h2:,28
:
      In file included from | ../src/s2/s2point.h                ^:
25:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/util/coding/coder.h::25736::
23In file included from :../src/s2/base/casts.h :36note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/logging.h:In file included from 21  s2/s2polygon.cc:
257:In file included from  | 18/usr/local/clang/include/absl/log/check.h#:
:dIn file included from 37e../src/s2/s2polygon.h:
f:In file included from i29/usr/local/clang/include/absl/log/internal/check_impl.hn:
:eIn file included from 21 /usr/local/clang/include/absl/container/flat_hash_map.h:
a:b/usr/local/clang/include/absl/log/internal/check_op.h45s::
l506/usr/local/clang/include/absl/container/internal/raw_hash_map.h_::n1145u::l 58l:warning: a type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
warning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
   _506N   | u145Al | Bl Sa L b_ lL eO 
G _       I|  N                      ^ T
 E R N A LIn file included from  _s2/s2polyline_alignment.cc C: H17fE:
aCIn file included from lK../src/s2/s2polyline_alignment.hs_:eO24,P:
_ IIn file included from tM../src/s2/s2polyline.hrP:uL31e(:
,CIn file included from  h../src/s2/base/logging.hAe:Bc21kS:
_LIn file included from _G/usr/local/clang/include/absl/log/check.hIE:N,37 T>:
E=In file included from R)/usr/local/clang/include/absl/log/internal/check_impl.hN
:A      21L| :
^_/usr/local/clang/include/absl/log/internal/check_op.h
S:I518/usr/local/clang/include/absl/log/internal/check_op.hN::G47488L::E 32_:Awarning:  Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: G
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'(
)  )518; |   
 488        | |                                                            ^  
cion/usr/local/clang/include/absl/container/internal/raw_hash_map.hnl:isn120te:  9cc:ho annote: rsmacro 'ABSL_INTERNAL_X' defined here*t
 eaxb  ps120rl |  _#cndouenlfslitan becl heAa Brs*S1 La,b_ sIlcN_oTnnEsuRtlN lAcaLhb_laXer( *Fn auamnbecs#,#lI m_Cpnalu(ll ll ea eb ,l   e K  Qs 2u ,a 
l        , |                                                 ^ V
 Q u/usr/local/clang/include/absl/base/nullability.h a\:l
257,      : | 23K                               ^V:
a lnote: u/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nullable'e:
,257 :  V23257V: | a #lnote: duexpanded from macro 'absl_nullable'ee
,f i  Tn257ae | i #lad,eb fs.iln.e_. n)au bls\ll
_an      ubl| ll        ^ea
b l_eN u_lNlualbllaeb
l      e| 
                      ^      
|                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:31:
In file included from ../src/s2/base/logging.h:In file included from 21s2/s2pointutil.cc:
:In file included from 18/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2pointutil.h:
:In file included from 25/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s1angle.h:
:/usr/local/clang/include/absl/log/internal/check_op.h28::
519In file included from :../src/s2/s2point.h17::25 :
In file included from warning: ../src/s2/util/coding/coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from   ../src/s2/base/casts.h519: | 36 :
 In file included from  ../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37c:
hIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hr:*21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s506l:_1n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll/usr/local/clang/include/absl/log/internal/check_op.h :e489x:p47r:t enote: xexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
);
        | 489                ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22c:o nnote: sexpanded from macro 'absl_nonnull't
 T  1241& |  #vd1e,f icnoen satb sT/usr/local/clang/include/absl/container/internal/raw_hash_map.hl2:_&144n :ov32n:n,  uwarning: clpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]lo
 n_sNt   o144cn | hn ua lrAl*B
 Sa      Lb| _s                     ^lI_
NnToEnRnNuAlLl_ Xe(xIn file included from ips2/s2polyline_alignment.ccnr:tse17ex:
rtIn file included from t)../src/s2/s2polyline_alignment.h_ :o{24 r:
 _In file included from a ../src/s2/s2polyline.hs :s 31i\:
g
In file included from n      ../src/s2/base/logging.h,| :                                               ^21i
n:
sIn file included from /usr/local/clang/include/absl/base/nullability.he/usr/local/clang/include/absl/log/check.h:r:241t37:_:
22oIn file included from r:/usr/local/clang/include/absl/log/internal/check_impl.h_ a:note: s21expanded from macro 'absl_nonnull's:

i/usr/local/clang/include/absl/log/internal/check_op.hg:  n520241_: | i#13md:pe lfwarning: i,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n e
c oan  bss520tl | &_cn,oo nncsnotunl slct h&_a,Nr
o*n      n u| al  ^bl

s      l| /usr/local/clang/include/absl/container/internal/raw_hash_map.h_                     ^:n
133u:l52l:a bnote: lexpanded from macro 'ABSL_INTERNAL_X'e
 Ch  e133c | k s t r c a s e c m pAfBaSlLs_eIINmTpElR(N
A      L| _            ^A
TT/usr/local/clang/include/absl/base/nullability.hR:I257B:U23T:E _note: Cexpanded from macro 'absl_nullable'A
PT  U257R | E#Dd_eBfYi(nteh iasb)s)l,_ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
   \In file included from 
s2/s2polyline_alignment.cc      :| 17                                                   ^:

In file included from ../src/s2/s2polyline_alignment.h:24/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 32../src/s2/s2polyline.h::931::
 In file included from ../src/s2/base/logging.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here21
:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :   s2/s2pointutil.cc3732::
 | 18In file included from #:
/usr/local/clang/include/absl/log/internal/check_impl.hdIn file included from :e../src/s2/s2pointutil.h21f::
i25/usr/local/clang/include/absl/log/internal/check_op.hn:
:eIn file included from 521 ../src/s2/s1angle.h:A:17B28:S:
 LIn file included from warning: _../src/s2/s2point.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I:
N25T:
  EIn file included from 521R../src/s2/util/coding/coder.h | N: A36 L:
 _In file included from  I../src/s2/base/casts.hcF:o_36nf:
saIn file included from tl../src/s2/base/logging.h s:ce21h(:
aiIn file included from rf/usr/local/clang/include/absl/log/check.h*_: s37aa:
btIn file included from si/usr/local/clang/include/absl/log/internal/check_impl.hls:_f21ni:
ue/usr/local/clang/include/absl/log/internal/check_op.hld:l,506a :b.1.l:.e ) warning:  stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_1
_,V /usr/local/clang/include/absl/log/internal/check_op.hAc:_o497An:Rs32Gt:S  _cnote: _hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
a
      r| *        ^ 
  a497b | s l _innulliIn file included from lns2/s2polygon.ccea: b18cl:
oeIn file included from n ../src/s2/s2polygon.hss:t229e,:
x
In file included from p      /usr/local/clang/include/absl/container/flat_hash_map.hr| :                 ^c45o
:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/base/nullability.hs::t144257 ::c3h23a::r * warning:  note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]aexpanded from macro 'absl_nullable'
b
sl    _257144n |  | u# ld leAafBbiSlnLee_  InaNabTmsEelR#_N#nAIuLml_plXla((bi ln es  e_ rN tu _l ol ra _b al se s
 i       g|  n                      ^ ,
   i n\s
In file included from e      s2/s2polyline_alignment.ccr| :t                               ^17_
:
oIn file included from r/usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline_alignment.h_::a25724s::
s23In file included from i:../src/s2/s2polyline.hg :n31note: _:
expanded from macro 'absl_nullable'iIn file included from 
m../src/s2/base/logging.hp:  l21257,:
 |  In file included from #c/usr/local/clang/include/absl/log/check.hdo:en37fs:
itIn file included from n&/usr/local/clang/include/absl/log/internal/check_impl.he,:  21ac:
bo/usr/local/clang/include/absl/log/internal/check_op.hsn:ls521_t:n&47u,:l
 l      warning: a| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b  ^
l
e /usr/local/clang/include/absl/container/internal/raw_hash_map.h  _:521N135u | l: l16 a: b  lnote: ecexpanded from macro 'ABSL_INTERNAL_X'
o
      n| s                      ^  t
135  | c h a r *   a In file included from b s2/s2pointutil.ccs :l 18_t:
nhIn file included from ui../src/s2/s2pointutil.hsl:)l25)a:
)bIn file included from  l../src/s2/s1angle.hAe:B 28SsL:
1_In file included from ,A../src/s2/s2point.h T:cT25oR:
nIIn file included from sB../src/s2/util/coding/coder.htU: T36cE:
h_In file included from aL../src/s2/base/casts.hrI*:F 36Ea:
TbIn file included from Is../src/s2/base/logging.hMl:E__21nB:
uOIn file included from lU/usr/local/clang/include/absl/log/check.hlN:aD37b :
l{In file included from e /usr/local/clang/include/absl/log/internal/check_impl.h  :s 212 :
, /usr/local/clang/include/absl/log/internal/check_op.h
 :       506 | :                                               ^1 
 :  /usr/local/clang/include/absl/base/nullability.h :warning:  257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
 23 /usr/local/clang/include/absl/log/internal/check_op.h: :  498note:  :expanded from macro 'absl_nullable' 35
 :     257note:   | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' #
 d e f   i498\n | 
e         | a                ^ b 
s l/usr/local/clang/include/absl/container/internal/common.hi_:nn31tu:l 9lv:a1 b,note: l macro 'ABSL_INTERNAL_IF_true' defined hereien
 t_    Nv31u2 | l,# ldcaeobfnlisen
te        c| Ah                      ^Ba
SrL*_ IaNbIn file included from Tss2/s2polyline_alignment.ccEl:R_17Nn:
AoIn file included from nL../src/s2/s2polyline_alignment.h_n:Iu24lFl:
_ In file included from te../src/s2/s2polyline.hxrp:ur31tee:
(xIn file included from it../src/s2/base/logging.hf):_ 21s{:
a In file included from  t /usr/local/clang/include/absl/log/check.hi :s 37f :
i In file included from  e/usr/local/clang/include/absl/log/internal/check_impl.h d :, 21  :
. /usr/local/clang/include/absl/log/internal/check_op.h .: .522 ):  \17i
:f       _| warning: s                                  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
t
i/usr/local/clang/include/absl/base/nullability.hs:  f241522i: | e22 d: 
        note:  | expanded from macro 'absl_nonnull'c        ^
o
n  s241t |  #cdheafri*n ea basbls_ln_onnoIn file included from nns2/s2polygon.ccnu:lu18ll:
l In file included from e ../src/s2/s2polygon.hx_:pN29ro:
tnIn file included from en/usr/local/clang/include/absl/container/flat_hash_map.hxu:tl45)l:
;
/usr/local/clang/include/absl/container/internal/raw_hash_map.h
      :      | 144                     ^| :
                ^3
: /usr/local/clang/include/absl/base/nullability.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]241
:22: note: expanded from macro 'absl_nonnull'
  144 |    241  | A#BdSeLf_iInNeT EaRbNsAlL__nXo(ninnuslelr t__Noorn_nauslsli
g      n| ,                     ^ 
insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:In file included from 3s2/s2pointutil.cc:: 18:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2pointutil.h
:25:
In file included from ../src/s2/s1angle.h  :15128 | :
 In file included from  ../src/s2/s2point.hA:B25S:
LIn file included from _../src/s2/util/coding/coder.hI:N36T:
EIn file included from R../src/s2/base/casts.hN:A36L:
_In file included from X../src/s2/base/logging.h(:i21n:
sIn file included from e/usr/local/clang/include/absl/log/check.hr:t37_:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.h_:a21s:
si/usr/local/clang/include/absl/log/internal/check_op.hg:n507:,1 :i nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
rt_o  r507_ | aAsBsSiLg_nL_OiGm_pIlN,T EcRoNnAsLt_&C,H E&C&K,_ OfPa_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
lse,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprt/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
ext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   In file included from As2/s2polyline_alignment.ccB:S17L:
_In file included from I../src/s2/s2polyline_alignment.hN:T24E:
RIn file included from N../src/s2/s2polyline.hA:L31_:
XIn file included from (../src/s2/base/logging.hi:n22s:
eIn file included from r/usr/local/clang/include/absl/log/log.ht:_209o:
rIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.ha:s20s:
iIn file included from g/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:,63 :
in/usr/local/clang/include/absl/log/internal/vlog_config.hs:e49r:t37_:o rwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ssig   n49_ | iimnptl ,R e&g&i,s tceornAsntd&I,n ittriuael,i
z      e| (  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~V
Log  S201i | t e *   a b s l _ n o n n u l l   v )f;a
l      s| e                                    ^,
 .fi/usr/local/clang/include/absl/base/nullability.hr:s241t:,22 :c onote: nexpanded from macro 'absl_nonnull's
t_  i241t | e#rdaetfoirn eA BaSbLs_lI_NnToEnRnNuAlLl_ C_ONMoMnAn)u;l
l      
|                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
                     ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAIn file included from Ls2/s2polyline_alignment.cc_:A17T:
TIn file included from R../src/s2/s2polyline_alignment.hI:B24U:
TIn file included from E../src/s2/s2polyline.h_:C31A:
PIn file included from T../src/s2/base/logging.hU:R22E:
DIn file included from _/usr/local/clang/include/absl/log/log.hB:Y209(:
tIn file included from h/usr/local/clang/include/absl/log/internal/log_impl.hi:s20):
)In file included from ,/usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 63 : 43 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       63  |      e x p l i c\i
t       | c                                              ^~~~o
nstexpr/usr/local/clang/include/absl/container/internal/raw_hash_map.h :V200L:o3g:S iwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
(c/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n135s:t16 :c hnote: aexpanded from macro 'ABSL_INTERNAL_X'r
* ab  s135l | _ n o n n u l l   f )t
h      i| s                                          ^)
))/usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Anote: Texpanded from macro 'absl_nonnull'T
RI  B241U | T#Ed_eLfIiFnEeT IaMbEs_lB_OnUoNnDn u{l l   _ N o n n u l l 
        |                       ^ 
               \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, In file included from .s2/s2polyline_alignment.cc.:.17):
 In file included from _../src/s2/s2polyline_alignment.h_:V24A:
_In file included from A../src/s2/s2polyline.hR:G31S:
_In file included from _../src/s2/base/logging.h
:      22| :
        ^In file included from 
/usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, inseIn file included from rs2/s2polyline_alignment.cct:_17o:
rIn file included from _../src/s2/s2polyline_alignment.ha:s24s:
iIn file included from g../src/s2/s2polyline.hn:_31i:
mIn file included from p../src/s2/base/logging.hl:,22 :
&In file included from &/usr/local/clang/include/absl/log/log.h,: 209c:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hs:t20&:
,In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.ht:r63u:
e,/usr/local/clang/include/absl/log/internal/vlog_config.h
:      119| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~15
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]203
 |      119  |      c o n s t   c h a r *  tarbusel,_ n.ofninrusltl,  ccoonnsstt _fiitleer_a;t
o      r|                ^A
BSL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_C  O241M | M#Ad)e;f
i      n| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
abs/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:_133n:o47n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 _No  n133n | u l l 
        |                       ^ 
   ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_In file included from os2/s2polyline_alignment.ccr:_17a:
sIn file included from s../src/s2/s2polyline_alignment.hi:g24n:
_In file included from i../src/s2/s2polyline.hm:p31l:
,In file included from  ../src/s2/base/logging.h&:&22,:
 In file included from &/usr/local/clang/include/absl/log/log.h&:,209 :
tIn file included from r/usr/local/clang/include/absl/log/internal/log_impl.hu:e20,:
 In file included from t/usr/local/clang/include/absl/log/absl_vlog_is_on.hr:u63e:
,
/usr/local/clang/include/absl/log/internal/vlog_config.h      :| 133  ^:
37: /usr/local/clang/include/absl/container/internal/raw_hash_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]133
:52: note:   expanded from macro 'ABSL_INTERNAL_X'133
 | in  t133  | R e g i s t e r A n dAIBnSiLt_iIaNlTiEzReN(AVLL_oAgTSTiRtIeB*U TaEb_sClA_PnToUnRnEuDl_lB Yv()t;h
i      s| )                                    ^)
,   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                                   ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l31l: 9_:N onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull   
31       | | #                     ^d
efine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from In file included from s2/s2polyline_alignment.ccs2/s2polygon.cc::1718:
:
In file included from In file included from ../src/s2/s2polyline_alignment.h../src/s2/s2polygon.h::2429:
:
In file included from In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/container/flat_hash_map.h::3145:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/base/logging.h::21122::
3In file included from :/usr/local/clang/include/absl/log/log.h :209warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63  :
211 | /usr/local/clang/include/absl/log/internal/vlog_config.h : 157A:B11S:L _warning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
TER  N157A | LV_LXo(giSnisteer*t _aobrs_la_snsuilglna,b lien sSeerttV_Moord_ualsesLiigsnt_HiemapdlF,o r&T&e,s t&O&n,l yt(r
u      e| ,          ^ 
tr/usr/local/clang/include/absl/base/nullability.hu:e257,:
23      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~note: 
expanded from macro 'absl_nullable'
    212257 |  |  # d e f i n e   a b s l _ n u l l a.bflier s_tN,u lcloanbslte_
i      t| e                      ^r
ator ABIn file included from Ss2/s2polyline_alignment.ccL:_17I:
NIn file included from T../src/s2/s2polyline_alignment.hE:R24N:
AIn file included from L../src/s2/s2polyline.h_:C31O:
MIn file included from M../src/s2/base/logging.hA:)22;:

In file included from       /usr/local/clang/include/absl/log/log.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~209
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/log/internal/log_impl.h::13320::
47In file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h :63note: :
expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/internal/vlog_config.h
:158:15:   133 | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     158  |         AVBLSoLg_SIiNtTeE*R NaAbLs_lA_TnTuRlIlaBbUlTeE _vC)A;P
T      U| R              ^E
D_/usr/local/clang/include/absl/base/nullability.hB:Y257(:t23h:i snote: )expanded from macro 'absl_nullable')
,    257  |  # d e f i n e   a b s l _ n u l l a b l e   _\N
u      l| l                                              ^~~~a
ble
      |                       ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   consIn file included from ts2/s2polyline_measures.cce:x18p:
rIn file included from  ../src/s2/s2polyline_measures.hc:o29n:
sIn file included from t../src/s2/s1angle.h :c28h:
aIn file included from r../src/s2/s2point.h*: 25a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
oIn file included from n../src/s2/base/casts.hn:u34l:
lIn file included from  /usr/local/clang/include/absl/log/log.hf:i209l:
eIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hn:a22m:
eIn file included from (/usr/local/clang/include/absl/log/internal/log_message.h): 47:
cIn file included from o/usr/local/clang/include/absl/log/internal/structured_proto.hn:s27t:
 In file included from n/usr/local/clang/include/absl/log/internal/proto.ho:e34x:
ce/usr/local/clang/include/absl/types/span.hp:t733 :{31
:       | warning:                         ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:22:   733note:  | expanded from macro 'absl_nonnull'c
on  s241t | e#xdperf iSnpea na<bTs>l _MnaoknenSuplaln (_TN*o nanbuslll_
n      u| l                     ^l
able ptr ABSL_ATTIn file included from Rs2/s2polyline_simplifier.ccI:B18U:
TIn file included from E../src/s2/s2polyline_simplifier.h_:L63I:
FIn file included from E../src/s2/s1chord_angle.hT:I29M:
EIn file included from _../src/s2/s1angle.hB:O28U:
NIn file included from D../src/s2/s2point.h,:
25      :
| In file included from                               ^../src/s2/util/coding/coder.h
:36:
In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.h::34257:
:In file included from 23/usr/local/clang/include/absl/log/log.h:: 209note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h:22  :
257In file included from  | /usr/local/clang/include/absl/log/internal/log_message.h#:d53e:
f/usr/local/clang/include/absl/types/source_location.hi:n142e: 25a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nul  l142a | b l ec o_nNsutlelxapbrl ec
o      n| s                      ^t
 char* absl_nonnull function_name() const noexcept {
      |                         ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polyline_measures.cc::24118::
22In file included from :../src/s2/s2polyline_measures.h :note: 29expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f25i:
nIn file included from e../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n34o:
nIn file included from n/usr/local/clang/include/absl/log/log.hu:l209l:
 In file included from _/usr/local/clang/include/absl/log/internal/log_impl.hN:o22n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hl:l47
:
      In file included from | /usr/local/clang/include/absl/log/internal/structured_proto.h                     ^:
27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | SIn file included from ps2/s2polyline_simplifier.cca:n18<:
TIn file included from >../src/s2/s2polyline_simplifier.h :M63a:
kIn file included from e../src/s2/s1chord_angle.hS:p29a:
nIn file included from (../src/s2/s1angle.hT:*28 :
aIn file included from b../src/s2/s2point.hs:l25_:
nIn file included from u../src/s2/util/coding/coder.hl:l36a:
bIn file included from l../src/s2/base/casts.he: 34b:
eIn file included from g/usr/local/clang/include/absl/log/log.hi:n209 :
AIn file included from B/usr/local/clang/include/absl/log/internal/log_impl.hS:L22_:
AIn file included from T/usr/local/clang/include/absl/log/internal/log_message.hT:R53I:
B/usr/local/clang/include/absl/types/source_location.h:150:40:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
LIF  E150T | I M E _ B O U N D , 
        |                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
    c257o | n#sdte fcihnaer *a basbls_ln_unlolnanbullel  _fNiullel_anbalmee
)      
|                             ^| 
                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2polyline_measures.cc241: | 18#:
dIn file included from e../src/s2/s2polyline_measures.hf:i29n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o25n:
nIn file included from u../src/s2/util/coding/coder.hl:l36 :
_In file included from N../src/s2/base/casts.ho:n34n:
uIn file included from l/usr/local/clang/include/absl/log/log.hl:
209      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T*In file included from  s2/s2polyline_simplifier.cca:b18s:
lIn file included from _../src/s2/s2polyline_simplifier.hn:u63l:
lIn file included from a../src/s2/s1chord_angle.hb:l29e:
 In file included from e../src/s2/s1angle.hn:d28):
 In file included from n../src/s2/s2point.ho:e25x:
cIn file included from e../src/s2/util/coding/coder.hp:t36 :
{In file included from 
../src/s2/base/casts.h      :| 34                    ^:

In file included from /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/base/nullability.h::209257:
:In file included from 23/usr/local/clang/include/absl/log/internal/log_impl.h:: 22:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/log_message.h
:53:
  /usr/local/clang/include/absl/types/source_location.h257: | 165#:d15e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s165l | _ n uclolnasbtl ec h_aNru*l laabbslle_
n      o| n                      ^n
ull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polyline_simplifier.cc::25718::
23In file included from :../src/s2/s2polyline_simplifier.h :note: 63expanded from macro 'absl_nullable':

In file included from ../src/s2/s1chord_angle.h:  29257:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 25a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
uIn file included from l../src/s2/base/casts.hl:a34b:
lIn file included from e/usr/local/clang/include/absl/log/log.h :_209N:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl:a22b:
l/usr/local/clang/include/absl/log/internal/log_message.he:
71      :| 26                      ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file,In file included from  s2/s2polyline_measures.cci:n18t:
 In file included from l../src/s2/s2polyline_measures.hi:n29e:
,In file included from 
../src/s2/s1angle.h      :| 28                         ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h25::
241:22: note: In file included from expanded from macro 'absl_nonnull'../src/s2/util/coding/coder.h
:36  :
241In file included from  | ../src/s2/base/casts.h#:d34e:
fIn file included from i/usr/local/clang/include/absl/log/log.hn:e209 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hs:l22_:
nIn file included from o/usr/local/clang/include/absl/log/internal/log_message.hn:n47u:
lIn file included from l/usr/local/clang/include/absl/log/internal/structured_proto.h :_27N:
oIn file included from n/usr/local/clang/include/absl/log/internal/proto.hn:u34l:
l/usr/local/clang/include/absl/types/span.h
:      799| :                     ^32
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begIn file included from is2/s2polyline_simplifier.ccn:
18      :
| In file included from                                ^../src/s2/s2polyline_simplifier.h
:63:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1chord_angle.h257::2923:
:In file included from  ../src/s2/s1angle.h:note: 28expanded from macro 'absl_nullable':

In file included from ../src/s2/s2point.h:  25257:
 | In file included from #../src/s2/util/coding/coder.hd:e36f:
iIn file included from n../src/s2/base/casts.he: 34a:
bIn file included from s/usr/local/clang/include/absl/log/log.hl:_209n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl:a22b:
l/usr/local/clang/include/absl/log/internal/log_message.he: 78_:N26u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le
         78|  |                       ^ 
 LogMessageIn file included from (s2/s2polyline_measures.ccc:o18n:
sIn file included from t../src/s2/s2polyline_measures.h :c29h:
aIn file included from r../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_25n:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from  ../src/s2/base/casts.hf:i34l:
eIn file included from ,/usr/local/clang/include/absl/log/log.h :i209n:
tIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hl:i22n:
eIn file included from ,/usr/local/clang/include/absl/log/internal/log_message.h
:      47| :
                         ^In file included from 
/usr/local/clang/include/absl/log/internal/structured_proto.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/proto.h::2234::
 /usr/local/clang/include/absl/types/span.hnote: :expanded from macro 'absl_nonnull'801
:32  :241  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n801e |   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
  T* absl_nullable end) noexcIn file included from es2/s2polyline_simplifier.ccp:t18 :
{In file included from 
../src/s2/s2polyline_simplifier.h      :| 63                               ^:

In file included from ../src/s2/s1chord_angle.h:/usr/local/clang/include/absl/base/nullability.h29::
257In file included from :../src/s2/s1angle.h23::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nullable':
25:
In file included from   ../src/s2/util/coding/coder.h257: | 36#:
dIn file included from e../src/s2/base/casts.hf:i34n:
eIn file included from  /usr/local/clang/include/absl/log/log.ha:b209s:
lIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hn:u22l:
l/usr/local/clang/include/absl/log/internal/log_message.ha:b80l:e26 :_ Nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab   l80e | 
        | L                      ^o
gMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonIn file included from ns2/s2pointutil.ccu:l18l:
 In file included from f../src/s2/s2pointutil.hi:l25e:
,In file included from  ../src/s2/s1angle.hi:n28t:
 In file included from l../src/s2/s2point.hi:n27e:
)In file included from  ../src/s2/s2coder.hA:B23S:
LIn file included from _/usr/local/clang/include/absl/status/status.hA:T67T:
RIn file included from I/usr/local/clang/include/absl/status/internal/status_internal.hB:U29T:
EIn file included from _/usr/local/clang/include/absl/strings/cord.hC:O82L:
DIn file included from ;/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:      23| :
                              ^In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/str_format.h::2284::
 In file included from note: /usr/local/clang/include/absl/strings/internal/str_format/bind.hexpanded from macro 'absl_nonnull'
  :24129 | :
#d/usr/local/clang/include/absl/strings/internal/str_format/parser.he:f227i:n11e:  awarning: b'enable_if' is a clang extension [-Wgcc-compat]s
l_no  n227n | u l l   _ N o n n u leln
a      b| l                     ^e
_if(str_format_internal::EnsureCIn file included from os2/s2polyline_simplifier.ccn:s18t:
eIn file included from x../src/s2/s2polyline_simplifier.hp:r63(:
fIn file included from o../src/s2/s1chord_angle.hr:m29a:
tIn file included from )../src/s2/s1angle.h,:
28      :
| In file included from           ^../src/s2/s2point.h
:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34/usr/local/clang/include/absl/strings/internal/str_format/parser.h:
:In file included from 229/usr/local/clang/include/absl/log/log.h::11209::
 In file included from /usr/local/clang/include/absl/log/internal/log_impl.hwarning: :'enable_if' is a clang extension [-Wgcc-compat]22
:
/usr/local/clang/include/absl/log/internal/log_message.h:  426229: | 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      426  | e n aLbolgeM_eisfs(asgterF_aftoarlm(acto_nisntt ecrhnaarl*: :aVbaslli_dnFoonrnmualtlI mfpill<eC,. .i.n>t( floirnmea,t
)      ,| 
                              ^      
|           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull fileIn file included from ,s2/s2pointutil.cc
:      18| :
                                     ^In file included from 
../src/s2/s2pointutil.h:25/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n82o:
nIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hu:l23l:
 In file included from _/usr/local/clang/include/absl/crc/crc32c.hN:o32n:
nIn file included from u/usr/local/clang/include/absl/strings/str_format.hl:l84
:
      | /usr/local/clang/include/absl/strings/internal/str_format/bind.h                     ^:
143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enableIn file included from _s2/s2polyline_simplifier.cci:f18(:
sIn file included from t../src/s2/s2polyline_simplifier.hr:_63f:
oIn file included from r../src/s2/s1chord_angle.hm:a29t:
_In file included from i../src/s2/s1angle.hn:t28e:
rIn file included from n../src/s2/s2point.ha:l25::
:In file included from E../src/s2/util/coding/coder.hn:s36u:
rIn file included from e../src/s2/base/casts.hC:o34n:
sIn file included from t/usr/local/clang/include/absl/log/log.he:x209p:
rIn file included from (/usr/local/clang/include/absl/log/internal/log_impl.hs:)22,:
 /usr/local/clang/include/absl/log/internal/log_message.h":c456o:n38s:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
r t  r456a | p " )L,o
g      M| e          ^s
sageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/internal/str_format/bind.h241::14922::22 : note: warning: expanded from macro 'absl_nonnull''enable_if' is a clang extension [-Wgcc-compat]

  241 |   #149d | e f i n e   a_b_salt_tnroinbnuutlel_ __(N(oennnaubllle
_      i| f                     ^(
str_format_In file included from is2/s2polyline_simplifier.ccn:t18e:
rIn file included from n../src/s2/s2polyline_simplifier.ha:l63::
:In file included from E../src/s2/s1chord_angle.hn:s29u:
rIn file included from e../src/s2/s1angle.hC:o28n:
sIn file included from t../src/s2/s2point.he:x25p:
rIn file included from (../src/s2/util/coding/coder.hs:)36,:

In file included from       ../src/s2/base/casts.h| :                     ^34
:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                    /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 158 : 22 :  cwarning: o'enable_if' is a clang extension [-Wgcc-compat]n
st c  h158a | r *   a b s l___naotntnruilblu tfea_i_l(u(reen_ambslge)_
i      f| (                                     ^V
al/usr/local/clang/include/absl/base/nullability.hi:d241F:o22r:m anote: texpanded from macro 'absl_nonnull'I
mp  l241< | A#rdgesf.i.n.e> (asb)s,l _"nboandn uflolr m_aNto ntnrualpl"
)      )| )                     ^

      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2predicates.cc241::1822:
:In file included from  ../src/s2/s2predicates.hnote: :expanded from macro 'absl_nonnull'57
:
In file included from   ../src/s2/s1chord_angle.h241: | 29#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b24s:
lIn file included from _/usr/local/clang/include/absl/hash/hash.hn:o89n:
nIn file included from u/usr/local/clang/include/absl/hash/internal/hash.hl:l79 :
_In file included from N/usr/local/clang/include/absl/base/internal/endian.ho:n26n:
ul/usr/local/clang/include/absl/base/internal/unaligned_access.hl:
39      :| 45                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h   :3963 | :
iIn file included from n../src/s2/s1chord_angle.hl:i29n:
eIn file included from  ../src/s2/s1angle.hu:i28n:
tIn file included from 1../src/s2/s2point.h6:_25t:
 In file included from U../src/s2/util/coding/coder.hn:a36l:
iIn file included from g../src/s2/base/casts.hn:e36d:
LIn file included from o../src/s2/base/logging.ha:d211:
6In file included from (/usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :v21o:
i/usr/local/clang/include/absl/log/internal/check_op.hd:*460 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u460l | lA BpS)L _{L
O      G| _                                            ^I
NTER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22D:E Fnote: Iexpanded from macro 'absl_nonnull'N
E_  M241A | K#Ed_eCfHiEnCeK _aObPs_lS_TnRoInNnGu_lElX T_ENRoNn(ncuolnls
t       | c                     ^h
ar* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2predicates.ccn:n18u:
lIn file included from l../src/s2/s2predicates.h :_57N:
oIn file included from n../src/s2/s1chord_angle.hn:u29l:
lIn file included from 
../src/s2/s1angle.h      :| 28                     ^:

In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | In file included from is2/s2polyline_simplifier.ccn:l18i:
nIn file included from e../src/s2/s2polyline_simplifier.h :u63i:
nIn file included from t../src/s2/s1chord_angle.h3:229_:
tIn file included from  ../src/s2/s1angle.hU:n28a:
lIn file included from i../src/s2/s2point.hg:n25e:
dIn file included from L../src/s2/util/coding/coder.ho:a36d:
3In file included from 2../src/s2/base/casts.h(:c36o:
nIn file included from s../src/s2/base/logging.ht: 21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n461n:u1l:l  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
        461|  |                                             ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241L:O22G:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dDeEfFiInNeE _aMbAsKlE__nCoHnEnCuKl_lO P__NSoTnRnIuNlGl_
E      X| T                     ^E
RN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpSIn file included from ts2/s2predicates.ccr:i18n:
gIn file included from (../src/s2/s2predicates.h : 57 :
\In file included from 
../src/s2/s1chord_angle.h      :| 29                              ^:

In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 24note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/hash/hash.h:  89241:
 | In file included from #/usr/local/clang/include/absl/hash/internal/hash.hd:e79f:
iIn file included from n/usr/local/clang/include/absl/base/internal/endian.he: 26a:
b/usr/local/clang/include/absl/base/internal/unaligned_access.hs:l51_:n45o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _   N51o | ninnulliln
e       | u                     ^i
nt64_In file included from ts2/s2polyline_simplifier.cc :U18n:
aIn file included from l../src/s2/s2polyline_simplifier.hi:g63n:
eIn file included from d../src/s2/s1chord_angle.hL:o29a:
dIn file included from 6../src/s2/s1angle.h4:(28c:
oIn file included from n../src/s2/s2point.hs:t25 :
vIn file included from o../src/s2/util/coding/coder.hi:d36*:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37p:
)In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h{:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                                            ^:
462:24:/usr/local/clang/include/absl/base/nullability.h :warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22:   462note:  | expanded from macro 'absl_nonnull' 
     241c | o#ndsetf isnieg naebds lc_hnaorn*n ualbls l__Nnoonnnnuullll
)      ;| 
                     ^      
|                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25In file included from :
s2/s2predicates.ccIn file included from :../src/s2/util/coding/coder.h18::
36In file included from :
../src/s2/s2predicates.hIn file included from :../src/s2/base/casts.h57::
36In file included from :
../src/s2/s1chord_angle.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/check.h28::
37In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h24::
21In file included from :
/usr/local/clang/include/absl/hash/hash.h/usr/local/clang/include/absl/log/internal/check_op.h::89462:
:In file included from 24/usr/local/clang/include/absl/hash/internal/hash.h:: 79warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/base/internal/endian.h:/usr/local/clang/include/absl/base/nullability.h26::
241:/usr/local/clang/include/absl/base/internal/unaligned_access.h22::57 :note: 36expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def   i57n | ei nalbisnle_ nvoonindu lUln a_lNiognnneudlSlt
o      r| e                     ^1
6(voIn file included from is2/s2polyline_simplifier.ccd:*18 :
aIn file included from b../src/s2/s2polyline_simplifier.hs:l63_:
nIn file included from o../src/s2/s1chord_angle.hn:n29u:
lIn file included from l../src/s2/s1angle.h :p28,:
 In file included from u../src/s2/s2point.hi:n25t:
1In file included from 6../src/s2/util/coding/coder.h_:t36 :
vIn file included from )../src/s2/base/casts.h :{36
:
      In file included from | ../src/s2/base/logging.h                                   ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :note: 21expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/log/internal/check_op.h:  461241: | 1#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a461b | sAlB_SnLo_nLnOuGl_lI N_TNEoRnNnAuLl_lD
E      F| I                     ^N
E_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, cIn file included from os2/s2predicates.ccn:s18t:
 In file included from c../src/s2/s2predicates.hh:a57r:
*In file included from  ../src/s2/s1chord_angle.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l24):

In file included from       /usr/local/clang/include/absl/hash/hash.h| :                        ^89
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/hash/internal/hash.h::24179::
22In file included from :/usr/local/clang/include/absl/base/internal/endian.h :note: 26expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/base/internal/unaligned_access.h:  61241: | 36#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a   b61s | li_nnloinnneu lvlo i_dN oUnnnaullilg
n      e| d                     ^S
tore32(void* absl_nonnull p, uIn file included from is2/s2polyline_simplifier.ccn:t183:
2In file included from _../src/s2/s2polyline_simplifier.ht: 63v:
)In file included from  ../src/s2/s1chord_angle.h{:
29      :
| In file included from                                    ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2522:
:In file included from  ../src/s2/util/coding/coder.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from   ../src/s2/base/casts.h241: | 36#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l463l: 1_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  
463       | | A                     ^B
SL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 449s2/s2predicates.cc::3118::
 In file included from note: ../src/s2/s2predicates.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
57:
In file included from ../src/s2/s1chord_angle.h  :44929 | :
 In file included from  ../src/s2/s1angle.he:x28t:
eIn file included from r../src/s2/s2point.hn: 24t:
eIn file included from m/usr/local/clang/include/absl/hash/hash.hp:l89a:
tIn file included from e/usr/local/clang/include/absl/hash/internal/hash.h :c79o:
nIn file included from s/usr/local/clang/include/absl/base/internal/endian.ht: 26c:
h/usr/local/clang/include/absl/base/internal/unaligned_access.ha:r65*: 36a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u65l | li nMlaikneeC hveocikdO pUSntarliinggn(e d S t\o
r      e| 6                              ^4
(v/usr/local/clang/include/absl/base/nullability.ho:i241d:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ipn,e  uaibnstl6_4n_otn nvu)l l{ 
_      N| o                                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2polyline_simplifier.cc | :#18d:
eIn file included from f../src/s2/s2polyline_simplifier.hi:n63e:
 In file included from a../src/s2/s1chord_angle.hb:s29l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 25_:
NIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h
:      36| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:In file included from 32s2/s2pointutil.cc:: 18In file included from note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's2/s2predicates.ccIn file included from 
:../src/s2/s2pointutil.h18::
25  In file included from :
497../src/s2/s2predicates.hIn file included from  | :../src/s2/s1angle.h 57: :
28iIn file included from :
nl../src/s2/s1chord_angle.hIn file included from i:../src/s2/s2point.hn29:e:
 27cIn file included from :
o../src/s2/s1angle.hIn file included from n:../src/s2/s2coder.hs28:t:
23eIn file included from :
x../src/s2/s2point.hIn file included from p:/usr/local/clang/include/absl/status/status.hr24: :
67cIn file included from :
o/usr/local/clang/include/absl/hash/hash.hIn file included from n:/usr/local/clang/include/absl/status/internal/status_internal.hs89:t:
29 In file included from :
c/usr/local/clang/include/absl/hash/internal/hash.hIn file included from h:/usr/local/clang/include/absl/strings/cord.ha79:r:
*86 :
a/usr/local/clang/include/absl/base/internal/endian.hb/usr/local/clang/include/absl/strings/cord_analysis.hs::l16032_::n3647u::l  lwarning: warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b

le n     a16032m |  | eis#ni#lzIienme_pt l u(Gi en tt1 E6 _st  t Li mo aa d 1t6 e( dc M oe nms to  r vy oUi\ds
*a       ga| e                               ^b(
scl/usr/local/clang/include/absl/base/nullability.h_o:nn257so:tn23n u:Cl olnote: r expanded from macro 'absl_nullable'pd
)R  e 257p{ | 
*#       d| ae                                   ^bfs
iln_/usr/local/clang/include/absl/base/nullability.hen :oan241bns:ull22_ln :ur lenote: lexpanded from macro 'absl_nonnull'pa)
b;l  
e241        | | #_                                              ^dN
eufl/usr/local/clang/include/absl/base/nullability.hil:nae241 b:al22bes:
l _note: n      expanded from macro 'absl_nonnull'o| n
n                      ^u  
l241l |  #_dNeofIn file included from nis2/s2polyline_simplifier.ccnn:ue18 l:
alIn file included from b
../src/s2/s2polyline_simplifier.hs      :l| 63                     ^_:

nIn file included from o../src/s2/s1chord_angle.hn:n29u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u25l:
lIn file included from 
../src/s2/util/coding/coder.h      :| 36                     ^:

In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: In file included from note: s2/s2pointutil.ccexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
18:
In file included from In file included from ../src/s2/s2pointutil.h  s2/s2predicates.cc:498:25 | 18:
 :
In file included from  In file included from ../src/s2/s1angle.h ../src/s2/s2predicates.h: :28 57:
 :
In file included from iIn file included from ../src/s2/s2point.hn../src/s2/s1chord_angle.h:t:27 29:
v:
In file included from 1In file included from ../src/s2/s2coder.h,../src/s2/s1angle.h: :23i28:
n:
In file included from tIn file included from /usr/local/clang/include/absl/status/status.h ../src/s2/s2point.h:v:67224:
,:
In file included from  In file included from /usr/local/clang/include/absl/status/internal/status_internal.hc/usr/local/clang/include/absl/hash/hash.h:o:29n89:
s:
In file included from tIn file included from /usr/local/clang/include/absl/strings/cord.h /usr/local/clang/include/absl/hash/internal/hash.h:c:86h79:
a:
/usr/local/clang/include/absl/strings/cord_analysis.hr:*/usr/local/clang/include/absl/base/internal/endian.h50 ::a16449b::s27 l:warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] nwarning: 
otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
n   u50l   | l164s i | eiznxelpi_rntte  eGvxoeittd) M So{tr oe rPe r1 e6 c( vi os ei dM e *m  o arb ys Ul s_ an\go
en      (n| c                                  ^uo
nl/usr/local/clang/include/absl/base/nullability.hls: t241p :,C22 o:ur idnote: nRtexpanded from macro 'absl_nonnull'1e6
_p  *t241   | av#b)sd le_{fn
ion      nen|  u                          ^al
lb s/usr/local/clang/include/absl/base/nullability.hrle:_pn241)o:;n
22n      u:| l                                                ^ l
 note: _/usr/local/clang/include/absl/base/nullability.hNexpanded from macro 'absl_nonnull':o
241n:  n22u241:l |  #lnote: 
dexpanded from macro 'absl_nonnull'      e
f| i                       ^n241
e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: In file included from warning: s2/s2predicates.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2predicates.h:   5756:
 | In file included from s../src/s2/s1chord_angle.hi:z29e:
_In file included from t../src/s2/s1angle.h :G28e:
tIn file included from E../src/s2/s2point.hs:t24i:
mIn file included from a/usr/local/clang/include/absl/hash/hash.ht:e89d:
FIn file included from a/usr/local/clang/include/absl/hash/internal/hash.hi:r79S:
h/usr/local/clang/include/absl/base/internal/endian.ha:r168e:M36e:m owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
Usa  g168e | (icnolnisnte  CuoirndtR3e2p_*t  aLbosald_3n2o(ncnounlslt  rveopi)d;*
       a| b                                                       ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'p
)   {241
 |       #| d                                   ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* In file included from as2/s2polyline_simplifier.ccb:s18l:
_In file included from n../src/s2/s2polyline_simplifier.ho:n63n:
uIn file included from l../src/s2/s1chord_angle.hl: 29p:
)In file included from  ../src/s2/s1angle.h{:
28      :
| In file included from                                    ^../src/s2/s2point.h
:25:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/util/coding/coder.h::24136::
22In file included from :../src/s2/base/casts.h :36note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:  21241:
 | In file included from #/usr/local/clang/include/absl/log/check.hd:e37f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he: 21a:
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_503n:o1n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _No  n503n | uAlBlS
L      _| L                     ^O
G_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2/s2predicates.cc488: | 18 :
 In file included from i../src/s2/s2predicates.hn:l57i:
nIn file included from e../src/s2/s1chord_angle.h :c29o:
nIn file included from s../src/s2/s1angle.ht:e28x:
pIn file included from r../src/s2/s2point.h :c24o:
nIn file included from s/usr/local/clang/include/absl/hash/hash.ht: 89c:
hIn file included from a/usr/local/clang/include/absl/hash/internal/hash.hr:*79 :
a/usr/local/clang/include/absl/base/internal/endian.hb:s254l:_27n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   254n | aimnel#i#nIem pvlo(i d   S t o r e 1 6 ( v o i d *   a b s\l
_      n| o                               ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 257p:,23 :u inote: nexpanded from macro 'absl_nullable't
16  _257t |  #vd)e f{i
n      e|                            ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   _241N | u#ldleafbilnee
       a| b                      ^s
l_nonnull _NoIn file included from ns2/s2polyline_simplifier.ccn:u18l:
lIn file included from 
../src/s2/s2polyline_simplifier.h      :| 63                     ^:

In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |   In file included from  s2/s2predicates.cc : 18 :
cIn file included from o../src/s2/s2predicates.hn:s57t:
 In file included from T../src/s2/s1chord_angle.h1:&29 :
vIn file included from 1../src/s2/s1angle.h,: 28c:
oIn file included from n../src/s2/s2point.hs:t24 :
TIn file included from 2/usr/local/clang/include/absl/hash/hash.h&: 89v:
2In file included from ,/usr/local/clang/include/absl/hash/internal/hash.h :c79o:
n/usr/local/clang/include/absl/base/internal/endian.hs:t258 :c36h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _258n | oinnnluilnle  euxipnrtt3e2x_tt)  L{o a d 3 2 (\c
o      n| s                                              ^t
 v/usr/local/clang/include/absl/base/nullability.ho:i241d:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ipn)e  {a
b      s| l                                   ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inlIn file included from is2/s2polyline_simplifier.ccn:e18 :
vIn file included from o../src/s2/s2polyline_simplifier.hi:d63 :
SIn file included from t../src/s2/s1chord_angle.ho:r29e:
3In file included from 2../src/s2/s1angle.h(:v28o:
iIn file included from d../src/s2/s2point.h*: 25a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
oIn file included from n../src/s2/base/casts.hn:u36l:
lIn file included from  ../src/s2/base/logging.hp:,21 :
uIn file included from i/usr/local/clang/include/absl/log/check.hn:t373:
2In file included from _/usr/local/clang/include/absl/log/internal/check_impl.ht: 21v:
)/usr/local/clang/include/absl/log/internal/check_op.h :{503
:      1| :                          ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/log/internal/check_op.h22::497 :32note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'  
241 | #d  e497f | i n ei nalbisnle_ ncoonnnsutlelx p_rN ocnonnusltl 
c      h| a                     ^r
* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2predicates.ccexpanded from macro 'absl_nullable':
18:
  In file included from 257../src/s2/s2predicates.h | :#57d:
eIn file included from f../src/s2/s1chord_angle.hi:n29e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.hu:l24l:
aIn file included from b/usr/local/clang/include/absl/hash/hash.hl:e89 :
_In file included from N/usr/local/clang/include/absl/hash/internal/hash.hu:l79l:
a/usr/local/clang/include/absl/base/internal/endian.hb:l266e:
36      :|                        ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inIn file included from ls2/s2polyline_simplifier.cci:n18e:
 In file included from u../src/s2/s2polyline_simplifier.hi:n63t:
6In file included from 4../src/s2/s1chord_angle.h_:t29 :
LIn file included from o../src/s2/s1angle.ha:d286:
4In file included from (../src/s2/s2point.hc:o25n:
sIn file included from t../src/s2/util/coding/coder.h :v36o:
iIn file included from d../src/s2/base/casts.h*: 36a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hp:)21 :
{/usr/local/clang/include/absl/log/internal/check_op.h
:      503| :                                   ^1
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 498:note: 35expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' | 
#de  f498i | n e   a b s li_nnto nvn1u,l li n_tN ovn2n,u lclo
n      s| t                     ^ 
char* absl_nonnull exprtext) {                 \
      | In file included from                                   ^s2/s2predicates.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2predicates.h::2257::
 In file included from note: ../src/s2/s1chord_angle.hexpanded from macro 'absl_nonnull':
29:
  In file included from 241../src/s2/s1angle.h | :#28d:
eIn file included from f../src/s2/s2point.hi:n24e:
 In file included from a/usr/local/clang/include/absl/hash/hash.hb:s89l:
_In file included from n/usr/local/clang/include/absl/hash/internal/hash.ho:n79n:
u/usr/local/clang/include/absl/base/internal/endian.hl:l270 :_27N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 270                     ^ | 
inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2polyline_simplifier.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2polyline_simplifier.h21::
63In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s1chord_angle.h41::
29In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :../src/s2/s1angle.h26::
28In file included from :
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :../src/s2/s2point.h:25:
In file included from 53../src/s2/util/coding/coder.h:
:36:
/usr/local/clang/include/absl/types/source_location.hIn file included from :../src/s2/base/casts.h113::3619:
:In file included from  ../src/s2/base/logging.h:warning: 21:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :11321 | :
 /usr/local/clang/include/absl/log/internal/check_op.h : 505 : 1 :c owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
t /usr/local/clang/include/absl/log/internal/check_op.hc:h497a:r32*:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
l_no  n497n | u l li nfliilnee_ ncaomnes t=e x_p_rb uciolntsitn _cFhIaLrE*( )a)b s{l
_      n| u                  ^l
lable name##Impl(            /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: \expanded from macro 'absl_nonnull'

      |                                ^
  /usr/local/clang/include/absl/base/nullability.h241: | 257#:d23e:f inote: nexpanded from macro 'absl_nullable'e
 a  b257s | l#_dneofninnuel la b_sNlo_nnnuulllla
b      l| e                     ^ 
_Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 498s2/s2polygon.cc::3518::
 In file included from ../src/s2/s2polygon.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'32
:
In file included from ../src/s2/base/logging.h:21  :
498In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :i21n:
tIn file included from  /usr/local/clang/include/absl/log/internal/check_op.hv:141,:
 In file included from i/usr/local/clang/include/absl/log/internal/strip.hn:t26 :
vIn file included from 2/usr/local/clang/include/absl/log/internal/log_message.h,: 53c:
o/usr/local/clang/include/absl/types/source_location.hn:s133t: 25c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l133_ | n o ncnounlslt eexxpprr tceoxnts)t  {c h a r *   a b s l _ n o n n u l l\ 
f      i| l                                  ^e
_n/usr/local/clang/include/absl/base/nullability.ha:m241e:(22):  cnote: oexpanded from macro 'absl_nonnull'n
st   241n | o#edxecfeipnte  {a
b      s| l                        ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2polyline_simplifier.ccn:u18l:
lIn file included from  ../src/s2/s2polyline_simplifier.h_:N63o:
nIn file included from n../src/s2/s1chord_angle.hu:l29l:

In file included from       ../src/s2/s1angle.h| :28                     ^:

In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2polygon.cc
:18:
In file included from ../src/s2/s2polygon.h  :50632 | :
AIn file included from B../src/s2/base/logging.hS:L21_:
LIn file included from O/usr/local/clang/include/absl/log/check.hG:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_op.h_:C41H:
EIn file included from C/usr/local/clang/include/absl/log/internal/strip.hK:_26O:
P/usr/local/clang/include/absl/log/internal/log_message.h_:I82M:P26L:( Cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ck_   G82E | ,   >L=o)g
M      e| s^s
age/usr/local/clang/include/absl/log/internal/check_op.h(:c488o:n32s:t  note: cexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'h
ar*   488a | b s li_nnloinnneu lclo nfsitleex,p ri ncto nlsitn ec,h
a      r| *                         ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241n | a#mdee#f#iInmep la(b s l _ n o n n u l l   _ N o n n u l l\

            | |                      ^                               ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2polygon.ccn:u18l:
lIn file included from 
../src/s2/s2polygon.h      :| 32                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2polyline_simplifier.ccl:_18n:
oIn file included from n../src/s2/s2polyline_simplifier.hn:u63l:
lIn file included from  ../src/s2/s1chord_angle.h_:N29o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^25
:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: In file included from warning: s2/s2polygon.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2polygon.h::49732::
32In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h497: | 21 :
 In file included from i/usr/local/clang/include/absl/log/internal/check_op.hn:l41i:
nIn file included from e/usr/local/clang/include/absl/log/internal/strip.h :c26o:
n/usr/local/clang/include/absl/log/internal/log_message.hs:t121e:x41p:r  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst   121c | h a rL*o gaMbessls_anguel&l aTbolSei nnkaOmnel#y#(Iambpsll(: : L o g S i n k *   a b s l _ n o n n\u
l      l|                                 ^s
in/usr/local/clang/include/absl/base/nullability.hk:)257;:
23      :|                                          ^note: 
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/base/nullability.h:  241257: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fniunlel aabblsel __nNounlnlualbll e_
N      o| n                      ^n
ull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2polygon.cce:f18i:
nIn file included from e../src/s2/s2polygon.h :a32b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41
:
      In file included from | /usr/local/clang/include/absl/log/internal/strip.h                     ^:
26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2polygon.cc::48818::
32In file included from :../src/s2/s2polygon.h :32note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/base/logging.h:21:
In file included from   /usr/local/clang/include/absl/log/check.h488: | 37 :
 In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:l21i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_op.h :c41o:
nIn file included from s/usr/local/clang/include/absl/log/internal/strip.ht:e26x:
pr/usr/local/clang/include/absl/log/internal/log_message.h :c306o:n3s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   a306b | s l _anbuslll_anbolnen unlalm es#t#dI:m:puln(i q u e _ p t r < L o g M e s s a g e D\a
t      a| >                               ^ 
da/usr/local/clang/include/absl/base/nullability.ht:a257_:;23
:       | note:   ^expanded from macro 'absl_nullable'

  /usr/local/clang/include/absl/base/nullability.h257: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneuflilnaeb laeb s_lN_unlolnanbullel
       _| N                      ^o
nnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nuIn file included from ls2/s2polygon.ccl:a18b:
lIn file included from e../src/s2/s2polygon.h :s321:
,In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h :c37h:
aIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_op.hl:_41n:
uIn file included from l/usr/local/clang/include/absl/log/internal/strip.hl:a26b:
le/usr/local/clang/include/absl/log/internal/log_message.h :s3192:,20
:       | warning:                 ^
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23  :319  | note:  expanded from macro 'absl_nullable' 
    c257o | n#sdte fwicnhea ra_bts*l _anbuslll_anbullel a_bNluel lcaobnlset
&       | v                      ^)
;
      |                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polyline_simplifier.cc::25718::
23In file included from :../src/s2/s2polyline_simplifier.h :63note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s1chord_angle.h:29  :
257In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e25 :
aIn file included from b../src/s2/util/coding/coder.hs:l36_:
nIn file included from u../src/s2/base/casts.hl:l36a:
bIn file included from l../src/s2/base/logging.he: 21_:
NIn file included from u/usr/local/clang/include/absl/log/check.hl:l37a:
bIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.he:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                      ^:
518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullabIn file included from ls2/s2polygon.cce: 18s:
2In file included from ,../src/s2/s2polygon.h
:      32| :
                                              ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/log/check.h::2337::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hnote: :expanded from macro 'absl_nullable'21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h  :25741 | :
#In file included from d/usr/local/clang/include/absl/log/internal/strip.he:f26i:
n/usr/local/clang/include/absl/log/internal/log_message.he: 321a:b52s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
llab  l321e |  i_nNluilnlea bLloeg
M      e| s                      ^s
age& In file included from Ls2/s2polyline_simplifier.cco:g18M:
eIn file included from s../src/s2/s2polyline_simplifier.hs:a63g:
eIn file included from :../src/s2/s1chord_angle.h::o29p:
eIn file included from r../src/s2/s1angle.ha:t28o:
rIn file included from <../src/s2/s2point.h<:(25w:
cIn file included from h../src/s2/util/coding/coder.ha:r36_:
tIn file included from *../src/s2/base/casts.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hv:)21 :
{/usr/local/clang/include/absl/log/internal/check_op.h
:      519| :                                                   ^17
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
257:23  :519  | note:  expanded from macro 'absl_nullable' 
    c257o | n#sdte fcihnaer *a basbls_ln_unlolnanbullel  _eNxuplrltaebxlte)
;      
|                             ^| 
                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25In file included from :
s2/s2polygon.ccIn file included from :../src/s2/util/coding/coder.h18::
36In file included from :
../src/s2/s2polygon.hIn file included from :../src/s2/base/casts.h32::
36In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/base/logging.h21::
21In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/log/check.h37::
37In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h21::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h::41521:
:In file included from 17/usr/local/clang/include/absl/log/internal/strip.h:: 26:
warning: /usr/local/clang/include/absl/log/internal/log_message.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
340:46:   521 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  co  n340s | t   cfhraire*n da bvsoli_dn uAlblsalbFloer msa1t,F lcuosnhs(tS tcrhianrg*i faybSsiln_kn*u lalbasbll_en osn2n,u
l      l|                  ^s
in/usr/local/clang/include/absl/base/nullability.hk:,257
:      23| :                                              ^
note: expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/base/nullability.h:  241257: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fniunlel aabblsel __nNounlnlualbll e_
N      o| n                      ^n
ull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull In file included from es2/s2pointutil.ccx:p18r:
tIn file included from e../src/s2/s2pointutil.hx:t25):
 In file included from A../src/s2/s1angle.hB:S28L:
_In file included from A../src/s2/s2point.hT:T27R:
IIn file included from B../src/s2/s2coder.hU:T23E:
_In file included from N/usr/local/clang/include/absl/status/status.hO:I67N:
LIn file included from I/usr/local/clang/include/absl/status/internal/status_internal.hN:E29;:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                              ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:22:/usr/local/clang/include/absl/synchronization/mutex.h :489note: :expanded from macro 'absl_nonnull'14
:   warning: 241 | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
defi  n489e |   a b s l _ nvoonindu l(l* a_bNsoln_nnuullll
a      b| l                     ^e
 invariant)(void* absl_nullability_unknowIn file included from ns2/s2polygon.cc):,18
:
      In file included from | ../src/s2/s2polygon.h             ^:
32:
In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
257In file included from :/usr/local/clang/include/absl/log/check.h23::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nullable':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h257: | 432#:d13e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s432l | _cnounlslta bclhea r_*N ualblsalb_lneo
n      n| u                      ^l
l MakeCIn file included from hs2/s2pointutil.cce:c18k:
OIn file included from p../src/s2/s2pointutil.hS:t25r:
iIn file included from n../src/s2/s1angle.hg:(28T:
1In file included from  ../src/s2/s2point.hv:127,:
 In file included from T../src/s2/s2coder.h2: 23v:
2In file included from ,/usr/local/clang/include/absl/status/status.h
:      67| :
            ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2294::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
/usr/local/clang/include/absl/synchronization/mutex.h:  489241: | 45#:d ewarning: ftype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]i
ne a  b489s | l _ n o n n uvloli d_ N(o*nanbuslll_
n      u| l                     ^l
able invaIn file included from rs2/s2polygon.cci:a18n:
tIn file included from )../src/s2/s2polygon.h(:v32o:
iIn file included from d../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
i/usr/local/clang/include/absl/log/internal/check_op.hl:i433t:y56_:u nwarning: ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
own  )433, | 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # d e f i n e   a b s l _ n u l l a b i l i t yc_ounnsktn ocwhna r_*N ualbls_lu_nnsopnencuilfli eedx
p      r| t                                 ^e
xt) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2pointutil.cc
:18:
  In file included from 241../src/s2/s2pointutil.h | :#25d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(coIn file included from ns2/s2polygon.ccs:t18 :
cIn file included from h../src/s2/s2polygon.ha:r32*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21 :
n/usr/local/clang/include/absl/log/internal/check_op.ha:m451e:)1;:
       | warning:                                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:257  :45123 | :A Bnote: Sexpanded from macro 'absl_nullable'L
_L  O257G | _#IdNeTfEiRnNeA La_bDsElF_InNuEl_lMaAbKlEe_ C_HNEuClKl_aObPl_eS
T      R| I                      ^N
G_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const chaIn file included from rs2/s2pointutil.cc*: 18a:
bIn file included from s../src/s2/s2pointutil.hl:_25n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hM:a27k:
eIn file included from C../src/s2/s2coder.hh:e23c:
kIn file included from O/usr/local/clang/include/absl/status/status.hp:S67t:
rIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:g29(:
 In file included from  /usr/local/clang/include/absl/strings/cord.h :\94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                              ^:
31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241549::2240::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #549d | e f isntea taibcs lv_oniodn nIunlclr e_mNeonntnSuylnlc
h      S| e                     ^m
(Mutex* In file included from as2/s2polygon.ccb:s18l:
_In file included from n../src/s2/s2polygon.ho:n32n:
uIn file included from l../src/s2/base/logging.hl: 21m:
uIn file included from ,/usr/local/clang/include/absl/log/check.h
:      37| :
                                       ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/log/internal/check_op.h::22451:: 1:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241/usr/local/clang/include/absl/log/internal/check_op.h | :#450d:e25f:i nnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
ab  s450l | _ n o n n u lxl,  _xN,o ncnounlslt
       c| h                     ^a
r* absl_nonnuIn file included from ls2/s2pointutil.ccl:)18
:
      In file included from | ../src/s2/s2pointutil.h                        ^:
25:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 550_:N64o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^550
 |                                 base_internal::PIn file included from es2/s2polygon.ccr:T18h:
rIn file included from e../src/s2/s2polygon.ha:d32S:
yIn file included from n../src/s2/base/logging.hc:h21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l452 :w1):; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                               ^

/usr/local/clang/include/absl/base/nullability.h:  241452: | 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
LO  G241_ | I#NdTeEfRiNnAeL _aDbEsFlI_NnEo_nMnAuKlEl_ C_HNEoCnKn_uOlPl_
S      T| R                     ^I
NG_EXTERN(int64_t);In file included from 
s2/s2pointutil.cc      :| 18^:

In file included from ../src/s2/s2pointutil.h:/usr/local/clang/include/absl/log/internal/check_op.h25::
449In file included from :../src/s2/s1angle.h31::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
27:
In file included from ../src/s2/s2coder.h  :44923 | :
 In file included from  /usr/local/clang/include/absl/status/status.he:x67t:
eIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hn: 29t:
eIn file included from m/usr/local/clang/include/absl/strings/cord.hp:l94a:
tIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t551 :c40h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l551_ | n o nsntualtli cM abkoeoClh eDcekcOrpeSmternitnSgy(n c h S\e
m      (| M                              ^u
te/usr/local/clang/include/absl/base/nullability.hx:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld emfui,n
e       | a                                       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _In file included from Ns2/s2polygon.cco:n18n:
uIn file included from l../src/s2/s2polygon.hl:
32      :
| In file included from                      ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452In file included from :s2/s2pointutil.cc1::18 :
In file included from warning: ../src/s2/s2pointutil.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s1angle.h450::2825:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from ../src/s2/s2coder.h:  23450:
 | In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hx:,29 :
xIn file included from ,/usr/local/clang/include/absl/strings/cord.h :c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht: 31c:
h/usr/local/clang/include/absl/synchronization/mutex.ha:r552*: 64a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u552l | l ) 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b sbla_sneo_ninnutlelr n_aNlo:n:nPuelrlT
h      r| e                     ^a
dSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2polygon.cc241: | 18#:
dIn file included from e../src/s2/s2polygon.hf:i32n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
_/usr/local/clang/include/absl/log/internal/check_op.hN:o453n:n1u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  453 | ABSL_LOG_INTERNAL_DEFIn file included from Is2/s2pointutil.ccN:E18_:
MIn file included from A../src/s2/s2pointutil.hK:E25_:
CIn file included from H../src/s2/s1angle.hE:C28K:
_In file included from O../src/s2/s2point.hP:_27S:
TIn file included from R../src/s2/s2coder.hI:N23G:
_In file included from E/usr/local/clang/include/absl/status/status.hX:T67E:
RIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.h(:u29i:
nIn file included from t/usr/local/clang/include/absl/strings/cord.h6:494_:
tIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h^:
556:38/usr/local/clang/include/absl/log/internal/check_op.h:: 449:warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  556 |     449v | o i de xLtoecrknS ltoewmLpoloapt(eS ycnocnhsWta icthPaarr*a masb*s la_bnsoln_nnuolnln uMlalk ewCahietcpk,O piSnttr ifnlga(g s ) ;\

            | |                                      ^                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21In file included from :
s2/s2pointutil.ccIn file included from :/usr/local/clang/include/absl/log/check.h18::
37In file included from :
../src/s2/s2pointutil.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h25::
21In file included from :
../src/s2/s1angle.h:/usr/local/clang/include/absl/log/internal/check_op.h28::
453In file included from :../src/s2/s2point.h1::27 :
In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h450::6725:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from /usr/local/clang/include/absl/strings/cord.h  :45094 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hx:,558 :x35,:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st   c558h | a r *b oaobls lL_oncoknSnluolwlW)i
t      h| D                        ^e
ad/usr/local/clang/include/absl/base/nullability.hl:i241n:e22(:M unote: Hexpanded from macro 'absl_nonnull'o
w   a241b | s#ld_enfoinnneu lalb shlo_wn,o
n      n| u                                  ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2polygon.ccs2/s2pointutil.cc::1818:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2pointutil.h::3225:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s1angle.h::2128:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2point.h::3727:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2coder.h::2123:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::45467::
1In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h454: | 31A:
B/usr/local/clang/include/absl/synchronization/mutex.hS:L559_:L46O:G _warning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
TER  N559A | L _ D E F I N E _ M A K E _ C H E C K _ O P _ S T R I N Gc_oEnXsTtE RCNo(nfdliotaito)n;*
       a| b^s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:u449l:l31a:b lnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
con  d449, | 
        | e                                             ^x
te/usr/local/clang/include/absl/base/nullability.hr:n257 :t23e:m pnote: lexpanded from macro 'absl_nullable'a
te   257c | o#ndsetf icnhea ra*b salb_snlu_lnloanbnluel l_ NMualkleaCbhleec
k      O| p                      ^S
tring(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2pointutil.cce:f18i:
nIn file included from e../src/s2/s2pointutil.h :a25b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2polygon.cc::3118:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2polygon.h::56232::
23In file included from :../src/s2/base/logging.h :21warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :56221 | :
 /usr/local/clang/include/absl/log/internal/check_op.h :v454o:i1d:  Lwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
k/usr/local/clang/include/absl/log/internal/check_op.hS:l450o:w25(:M unote: Hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
w   a450b | s l _ n o n nxu,l lx ,h ocwo,n scto ncshta rC*o nadbistli_onno*n naublsll)_
n      u| l                        ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241 :c22o:n dnote: ,expanded from macro 'absl_nonnull'

      |                         ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:In file included from 18s2/s2polygon.cc:
:In file included from 18../src/s2/s2pointutil.h:
:In file included from 25../src/s2/s2polygon.h:
:In file included from 32../src/s2/s1angle.h:
:In file included from 28../src/s2/base/logging.h:
:In file included from 21../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 455/usr/local/clang/include/absl/status/internal/status_internal.h::129::
 In file included from /usr/local/clang/include/absl/strings/cord.hwarning: :94type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
455 | /usr/local/clang/include/absl/synchronization/mutex.hA:B562S:L58_:L Owarning: Gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
INTE  R562N | A L _vDoEiFdI NLEo_cMkASKlEo_wC(HMEuCHKo_wO Pa_bSsTlR_InNoGn_nEuXlTlE RhNo(wd,o ucbolnes)t; 
C      o| n^d
it/usr/local/clang/include/absl/log/internal/check_op.hi:o449n:*31 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
_nu  l449l | a b leex tceornnd ,t
e      m| p                                                         ^l
at/usr/local/clang/include/absl/base/nullability.he: 257c:o23n:s tnote:  expanded from macro 'absl_nullable'c
ha  r257* |  #adbesfli_nneo nanbuslll_ nMualkleaCbhleec k_ONpuSltlraibnlge(
        |                        ^\

      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2pointutil.ccl:_18n:
oIn file included from n../src/s2/s2pointutil.hn:u25l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2polygon.cc29::
18In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2polygon.h94::
32In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/base/logging.h31::
21:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/check.h565::3736:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/log/internal/check_op.h:455:1  :565  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
v/usr/local/clang/include/absl/log/internal/check_op.ho:i450d: 25U:n lnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'c
kS  l450o | w ( S y n c hxW,a ixt,P acroanmsst*  cahbasrl*_ naublslla_bnloen nwualilt)p
)       | A                        ^B
SL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_  C241O | L#Dd;e
f      i| n                                   ^e
 absl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
_N  o257n | n#udlelf
i      n| e                     ^ 
absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKIn file included from Es2/s2pointutil.cc_:C18H:
EIn file included from C../src/s2/s2pointutil.hK:_25O:
PIn file included from _../src/s2/s1angle.hS:T28R:
IIn file included from N../src/s2/s2point.hG:_27E:
XIn file included from T../src/s2/s2coder.hE:R23N:
(In file included from c/usr/local/clang/include/absl/status/status.hh:a67r:
)In file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 449/usr/local/clang/include/absl/strings/internal/cordz_info.h::3131::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'576
:49:   449warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 e  x576t | e r nv otiedm pTlraytRee mcoovnes(tb acshea_ri*n taebrsnla_ln:o:nPneurlTlh rMeaakdeSCyhnecchk*O paSbtsrli_nngo(n n u l\l
       s| )                              ^;

      | /usr/local/clang/include/absl/base/nullability.h                                                ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21In file included from :
s2/s2pointutil.ccIn file included from :/usr/local/clang/include/absl/log/check.h18::
37In file included from :
../src/s2/s2pointutil.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h25::
21In file included from :
../src/s2/s1angle.h:/usr/local/clang/include/absl/log/internal/check_op.h28::
456In file included from :../src/s2/s2point.h1::27 :
In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h450::6725:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94450:
 | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :x578,: 45x:,  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst   578c | h a rv*o iadb sBll_oncokn(nbualsle)_
i      n| t                        ^e
rn/usr/local/clang/include/absl/base/nullability.ha:l241:::22P:e rnote: Texpanded from macro 'absl_nonnull'h
re  a241d | S#ydnecfhi*n ea basbls_ln_onnonnunlull ls )_;N
o      n| n                                            ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:In file included from 32s2/s2pointutil.cc:
:In file included from 18../src/s2/base/logging.h:
:In file included from 21../src/s2/s2pointutil.h:
:In file included from 25/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2point.h:
:27/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 457../src/s2/s2coder.h::123::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
457In file included from  | /usr/local/clang/include/absl/strings/cord.hA:B94S:
LIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hL:O31G:
_/usr/local/clang/include/absl/synchronization/mutex.hI:N580T:E34R:N Awarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
DEF  I580N | E _ MbAaKsEe__CiHnEtCeKr_nOaPl_:S:TPReIrNTGh_rEeXaTdESRyNn(cuhn*s iagbnseld_ ncuhlalra)b;l
e       | W^a
ke/usr/local/clang/include/absl/log/internal/check_op.hu:p449(:
31      :|                                   ^
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/base/nullability.h
:257:23  :449  | note:  expanded from macro 'absl_nullable' 
ex  t257e | r#nd etfeimnpel aatbes lc_onnusltl acbhlaer *_ Naublslla_bnloen
n      u| l                      ^l
 MakeChIn file included from es2/s2pointutil.ccc:k18O:
pIn file included from S../src/s2/s2pointutil.ht:r25i:
nIn file included from g../src/s2/s1angle.h(: 28 :
 In file included from \../src/s2/s2point.h
:      27| :
                              ^In file included from 
../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b581s:l38_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   581_ | N o n n u l lb
a      s| e                     ^_
internaIn file included from ls2/s2polygon.cc:::18P:
eIn file included from r../src/s2/s2polygon.hT:h32r:
eIn file included from a../src/s2/base/logging.hd:S21y:
nIn file included from c/usr/local/clang/include/absl/log/check.hh:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n457n:u1l:l  warning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
/usr/local/clang/include/absl/log/internal/check_op.h      :| 450                                     ^:
25: /usr/local/clang/include/absl/base/nullability.h:note: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
22:   450note:  | expanded from macro 'absl_nonnull' 
     241  |  #xd,e fxi,n ec oanbsstl _cnhoanrn*u lalb s_lN_onnonnunlull
l      )| 
                     ^      
|                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2pointutil.ccn:u18l:
lIn file included from  ../src/s2/s2pointutil.h_:N25o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: In file included from warning: s2/s2polygon.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2polygon.h:32  :
585In file included from  | ../src/s2/base/logging.h : 21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd: 37T:
rIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hn:s21(:
M/usr/local/clang/include/absl/log/internal/check_op.hu:H458o:w1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n458u | lAlB ShLo_wL)O;G _ I/N/T EuRsNeAdL _fDoErF ICNoEn_dMVAaKrE-_>CMHuEtCeKx_ OtPr_aSnTsRfIeNrG
_      E| X                   ^T
ER/usr/local/clang/include/absl/base/nullability.hN:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull's
td  :241: | s#tdreifnign&e) ;a
b      s| l^_
no/usr/local/clang/include/absl/log/internal/check_op.hn:n449u:l31l:  _note: Nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
nnu  l449l | 
        | e                     ^x
tern template const cIn file included from hs2/s2pointutil.cca:r18*:
 In file included from a../src/s2/s2pointutil.hb:s25l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27M:
aIn file included from k../src/s2/s2coder.he:C23h:
eIn file included from c/usr/local/clang/include/absl/status/status.hk:O67p:
SIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hr:i29n:
gIn file included from (/usr/local/clang/include/absl/strings/cord.h : 94 :
\In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                              ^:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/base/nullability.h586::24143::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 586# | d e fvionied  aFbesrl(_bnaosnen_uilnlt e_rNnoanln:u:lPle
r      T| h                     ^r
eadSynch* absl_nonIn file included from ns2/s2polygon.ccu:l18l:

In file included from       ../src/s2/s2polygon.h| :                                          ^32
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22/usr/local/clang/include/absl/log/check.h:: 37:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  241/usr/local/clang/include/absl/log/internal/check_op.h | :#458d:e1f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
a/usr/local/clang/include/absl/log/internal/check_op.hb:450s:l25_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
ul  l450  | _ N o n n u lxl,
       x| ,                     ^ 
const char* absl_nonIn file included from ns2/s2pointutil.ccu:l18l:
)In file included from 
../src/s2/s2pointutil.h      :| 25                        ^:

In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l590l: 40_:N owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull
        590|  |                      ^ 
 explicit Mutex(const volatile MIn file included from us2/s2polygon.cct:e18x:
*In file included from  ../src/s2/s2polygon.ha:b32s:
lIn file included from _../src/s2/base/logging.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/log/check.hb:l37e:
 In file included from //usr/local/clang/include/absl/log/internal/check_impl.h*:i21g:
n/usr/local/clang/include/absl/log/internal/check_op.ho:r459e:d1*:/ )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{
}
      |                                          ^459
 | A/usr/local/clang/include/absl/base/nullability.hB:S257L:_23L:O Gnote: _expanded from macro 'absl_nullable'I
NT  E257R | N#AdLe_fDiEnFeI NaEb_sMlA_KnEu_lClHaEbClKe_ O_PN_uSlTlRaIbNlGe_
E      X| T                      ^E
RN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2pointutil.ccN:o18n:
nIn file included from u../src/s2/s2pointutil.hl:l25
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2polygon.cc23::
18In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2polygon.h67::
32In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h94::
37In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h31::
21:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::624460::6866::  warning: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:22:   624 | note:  expanded from macro 'absl_nonnull' 
ex  p241l | i#cdietf iMnuet eaxbLsolc_kn(oMnuntuelxl&  _mNuo nAnBuSlLl_
I      N| T                     ^E
RNALIn file included from _s2/s2polygon.ccA:T18T:
RIn file included from I../src/s2/s2polygon.hB:U32T:
EIn file included from _../src/s2/base/logging.hC:A21P:
TIn file included from U/usr/local/clang/include/absl/log/check.hR:E37D:
_In file included from B/usr/local/clang/include/absl/log/internal/check_impl.hY:(21t:
h/usr/local/clang/include/absl/log/internal/check_op.hi:s460):)1
:       | warning:                                                                    ^~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP/usr/local/clang/include/absl/synchronization/mutex.h_:S635T:R29I:N Gwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
XTERN(  c635o | n s te xcphlairc*i ta bMsult_enxoLnoncukl(lM)u;t
e      x| *^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l450_:n25o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
l   m450u | )   A B S L _xE,X CxL,U ScIoVnEs_tL OcChKa_rF*U NaCbTsIlO_Nn(omnun)u
l      l| )                            ^

      |                         ^/usr/local/clang/include/absl/base/nullability.h
:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.hIn file included from :s2/s2polygon.cc25::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2polygon.h28::
32In file included from :
../src/s2/s2point.hIn file included from :../src/s2/base/logging.h27::
21In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/log/check.h23::
37In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h67::
21In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/log/internal/check_op.h29::
461In file included from :/usr/local/clang/include/absl/strings/cord.h1::94 :
In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
/usr/local/clang/include/absl/synchronization/mutex.h  :461641 | :A68B:S Lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
OG_IN  T641E | R N AeLx_pDlEiFcIiNtE _MMuAtKeEx_LCoHcEkC(KM_uOtPe_xS&T RmIuN GA_BESXLT_EIRNNT(E
R      N| A^L
_A/usr/local/clang/include/absl/log/internal/check_op.hT:T449R:I31B:U Tnote: Eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
CAP  T449U | R E De_xBtYe(rtnh itse)m,p
l      a| t                                                                   ^~~~e
 const char* absl_nonnull MakeCheckOpSt/usr/local/clang/include/absl/synchronization/mutex.hr:i649n:g29(:   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                               ^
  649/usr/local/clang/include/absl/base/nullability.h | : 241 :e22x:p lnote: iexpanded from macro 'absl_nonnull'c
it   241M | u#tdeexfLioncek (aMbustle_xn*o nanbuslll_ n_oNnonnunlull lm
u      ,|                       ^c
onstIn file included from  s2/s2polygon.ccC:o18n:
dIn file included from i../src/s2/s2polygon.ht:i32o:
In file included from nIn file included from s2/s2polyline_alignment.cc&../src/s2/base/logging.h: :17c21:
o:
In file included from nIn file included from ../src/s2/s2polyline_alignment.hd/usr/local/clang/include/absl/log/check.h:):
2437      :
:
| In file included from In file included from                             ^../src/s2/s2polyline.h/usr/local/clang/include/absl/log/internal/check_impl.h
::3321:
/usr/local/clang/include/absl/base/nullability.h:
In file included from :/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1angle.h241:::4622822::
:24In file included from  :../src/s2/s2point.h note: :warning: expanded from macro 'absl_nonnull'24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:

In file included from /usr/local/clang/include/absl/hash/hash.h:    89462241:
 |  | In file included from # /usr/local/clang/include/absl/hash/internal/hash.hd :e 79f :
icIn file included from no/usr/local/clang/include/absl/base/internal/endian.hen: s26at:
b ss/usr/local/clang/include/absl/base/internal/unaligned_access.hli:_g39nn:oe45nd:n  ucwarning: hltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]al
r *_ Nao   bns39nl | u_ilnnlol
ni      nn| eu                     ^ l
lu)i;n
t      1| 6                       ^_
t /usr/local/clang/include/absl/base/nullability.hU:n241a:l22i:g nnote: eexpanded from macro 'absl_nonnull'd
Lo  a241d | 1#6d(ecfoinnset  avbosild_*n oanbnsull_ln o_nNnounlnlu lpl)
       {| 
                     ^      
|                                             ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2polygon.cc::2218::
 In file included from ../src/s2/s2polygon.hnote: :expanded from macro 'absl_nonnull'32
:
In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_462n:o24n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CIn file included from Hs2/s2polyline_alignment.ccE:C17K:
_In file included from O../src/s2/s2polyline_alignment.hP:_24S:
TIn file included from R../src/s2/s2polyline.hI:N33G:
_In file included from E../src/s2/s1angle.hX:T28E:
RIn file included from N../src/s2/s2point.h(:
24      :
| In file included from ^/usr/local/clang/include/absl/hash/hash.h
:89:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h450::7925:
:In file included from  /usr/local/clang/include/absl/base/internal/endian.h:note: 26expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
In file included from 
/usr/local/clang/include/absl/base/internal/unaligned_access.hs2/s2pointutil.cc::  4518450::
 | 45In file included from  :../src/s2/s2pointutil.h  : 25warning:  :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] In file included from  
../src/s2/s1angle.hx:,28 :
   xIn file included from 45,../src/s2/s2point.h  | :ci27on:
nlIn file included from si../src/s2/s2coder.htn: e23c :
huIn file included from ai/usr/local/clang/include/absl/status/status.hrn:*t67 3:
a2In file included from b_/usr/local/clang/include/absl/status/internal/status_internal.hst:l 29_U:
nnIn file included from oa/usr/local/clang/include/absl/strings/cord.hnl:ni94ug:
lnIn file included from le/usr/local/clang/include/absl/strings/internal/cordz_info.h)d:
L31      o:
| a/usr/local/clang/include/absl/synchronization/mutex.h                        ^d:
36702:/usr/local/clang/include/absl/base/nullability.h(74:c:241o :nwarning: 22s:t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  
note: vexpanded from macro 'absl_nonnull'o
id    *241670  |  | a# bd seelfx_ipnnloein cnaiubtls llR _epna)od ne{nr
uM      lu| lt                                            ^ e
_xNL/usr/local/clang/include/absl/base/nullability.hoo:nc241nk:u(22lM:lu 
t      note: e| expanded from macro 'absl_nonnull'x                     ^&

   m241u |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oAnTnTuRlIlB UIn file included from _Ts2/s2polygon.ccNE:o_18nC:
nAIn file included from uP../src/s2/s2polygon.hlT:lU32
R:
      EIn file included from | D../src/s2/base/logging.h                     ^_:
B21Y:
(In file included from t/usr/local/clang/include/absl/log/check.hh:i37s:
)In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                                                         ^~~~/usr/local/clang/include/absl/log/internal/check_op.h
:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFI/usr/local/clang/include/absl/synchronization/mutex.hN:E678_:M35A:K Ewarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
HECK  _678O | P _ SeTxRpIn file included from IlNs2/s2polyline_alignment.cciG:c_17iE:
tXIn file included from  T../src/s2/s2polyline_alignment.hRE:eR24aN:
d(In file included from e
../src/s2/s2polyline.hr      :M| 33u^t:

eIn file included from x../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.hL::o28449c:
:kIn file included from 31(../src/s2/s2point.h:M: u24note: t:
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'eIn file included from 
x/usr/local/clang/include/absl/hash/hash.h*: 89  a:
449bIn file included from  | s/usr/local/clang/include/absl/hash/internal/hash.h l: _79en:
xoIn file included from tn/usr/local/clang/include/absl/base/internal/endian.hen:ru26nl:
 l/usr/local/clang/include/absl/base/internal/unaligned_access.ht :em51mu:p)45l :aA tBwarning: eStype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] L
c_oSnH   sA51tR |  EicDnh_laLirOn*Ce K a_ubFisUnlNt_C6nT4oI_nOtnN u(Ulmnlua )lM
ia      gk| ne                                  ^eC
dhLeo/usr/local/clang/include/absl/base/nullability.hac:dk2416O:4p22(S:cto rnnote: isexpanded from macro 'absl_nonnull'nt
g (v   o241 i |  d#\*d
 e      af| bi                              ^sn
le_ /usr/local/clang/include/absl/base/nullability.hna:ob241ns:nl22u_:ln lonote:  nexpanded from macro 'absl_nonnull'pn
)u l  {l241
  |       _#| Nd                                            ^oe
nfni/usr/local/clang/include/absl/base/nullability.hun:le241l :
a22      b:| s l                     ^note: _
expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnulIn file included from ls2/s2polygon.cc :_18N:
oIn file included from n../src/s2/s2polygon.hn:In file included from u32s2/s2pointutil.ccl:
:lIn file included from 18
../src/s2/base/logging.h:
      :In file included from | 21../src/s2/s2pointutil.h                     ^:
:
In file included from 25/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2point.h:
:/usr/local/clang/include/absl/log/internal/check_op.h27::
464In file included from :../src/s2/s2coder.h26::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h464: | 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht: 31u:
n/usr/local/clang/include/absl/synchronization/mutex.hs:i681g:n74e:d  warning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
ar* a  b681s | l _ neoxnpnluIn file included from ils2/s2polyline_alignment.cclc:)i17;t:

 In file included from       R../src/s2/s2polyline_alignment.h| e:                         ^a24
d:
eIn file included from /usr/local/clang/include/absl/base/nullability.hr../src/s2/s2polyline.h:M:241u33:t:
22eIn file included from :x../src/s2/s1angle.h L:note: o28expanded from macro 'absl_nonnull'c:
k
In file included from (../src/s2/s2point.h  M:241u24 | t:
#eIn file included from xd/usr/local/clang/include/absl/hash/hash.he&f: i89mn:
ueIn file included from   /usr/local/clang/include/absl/hash/internal/hash.hAa:Bb79Ss:
LlIn file included from __/usr/local/clang/include/absl/base/internal/endian.hnIo:Nn26Tn:
Eu/usr/local/clang/include/absl/base/internal/unaligned_access.hRl:Nl57A :L_36_N:Ao Tnwarning: Tntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ru
lIlB
U         T| 57E                     ^ | _
iCnAlPiTnUeIn file included from  Rs2/s2polygon.ccvE:oD18_i:
BdIn file included from Y ../src/s2/s2polygon.h(U:tn32ha:
ilIn file included from si../src/s2/base/logging.h)g:,n21
e:
      dIn file included from | S/usr/local/clang/include/absl/log/check.h                                                                         ^~~~t:
o37r:
eIn file included from 1/usr/local/clang/include/absl/log/internal/check_impl.h6:(21v:
o/usr/local/clang/include/absl/log/internal/check_op.hi:d464*: 26a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: pexpanded from macro 'absl_nonnull',
 /usr/local/clang/include/absl/synchronization/mutex.hu  :i241689n | t:#135d6:e_f tiwarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ve
)  a{b  
s689l       | _|  n                                   ^ o
enxn/usr/local/clang/include/absl/base/nullability.hpu:ll241il:c 22i_:tN  onote: Rnexpanded from macro 'absl_nonnull'en
audl  el241
r |       M#| ud                     ^te
efxiLnoIn file included from ces2/s2polygon.cck :(a18Mb:
usIn file included from tl../src/s2/s2polygon.he_:xn32*o:
 nIn file included from an../src/s2/base/logging.hbu:sl21ll_:
 nIn file included from _o/usr/local/clang/include/absl/log/check.hNn:on37nun:
luIn file included from ll/usr/local/clang/include/absl/log/internal/check_impl.h l:m
21u      :
,| /usr/local/clang/include/absl/log/internal/check_op.h                      ^:c
463o:n1s:t  warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
ndi  t463i | oAnB&S Lc_oLnOdG)_
I      N| TE                                  ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:D241E:F22I:N Enote: _expanded from macro 'absl_nonnull'M
AK  E241_ | C#HdEeCfKi_nOeP _aSbTsRIn file included from lI_s2/s2polyline_alignment.ccNn:oGn17_n:
EuXIn file included from Tl../src/s2/s2polyline_alignment.hEl:R 24N_(:
N
oIn file included from       n../src/s2/s2polyline.h| n:^u33
l:
lIn file included from /usr/local/clang/include/absl/log/internal/check_op.h
../src/s2/s1angle.h:      :450| 28:                     ^:
25
In file included from :../src/s2/s2point.h :24note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/hash/hash.h:89  :
450In file included from  | /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h :x26,:
 /usr/local/clang/include/absl/base/internal/unaligned_access.hx:,61 :c36o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
char   *61  | aibnslli_nneo nvnouildl )U
n      a| l                        ^i
gn/usr/local/clang/include/absl/base/nullability.he:d241S:t22o:r enote: 3expanded from macro 'absl_nonnull'2
(v  o241i | d#*d eafbisnle_ naobnsnlu_lnlo npn,u luli n_tN3o2n_ntu lvl)
       {| 
                     ^      
|                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2polygon.cc :_18N:
oIn file included from n../src/s2/s2polygon.hn:u32l:
lIn file included from 
../src/s2/base/logging.h      :| 21                     ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECKIn file included from _s2/s2polyline_alignment.ccO:P17_:
SIn file included from T../src/s2/s2polyline_alignment.hR:I24N:
GIn file included from _../src/s2/s2polyline.hE:X33T:
EIn file included from R../src/s2/s1angle.hN:(28c:
oIn file included from n../src/s2/s2point.hs:t24 :
vIn file included from o/usr/local/clang/include/absl/hash/hash.hi:d89*:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
In file included from _/usr/local/clang/include/absl/base/internal/endian.hn:o26n:
nIn file included from /usr/local/clang/include/absl/base/internal/unaligned_access.hus2/s2pointutil.ccl::l6518)::
;36In file included from 
:../src/s2/s2pointutil.h       :| 25warning: ^:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from 
../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.h::28449   :
:65In file included from 31 | ../src/s2/s2point.h:i: n27note: l:
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'iIn file included from 
n../src/s2/s2coder.he: 23  v:
449oIn file included from  | i/usr/local/clang/include/absl/status/status.h d:  67eU:
xnIn file included from ta/usr/local/clang/include/absl/status/internal/status_internal.hel:ri29ng:
 nIn file included from te/usr/local/clang/include/absl/strings/cord.hed:mS94pt:
loIn file included from ar/usr/local/clang/include/absl/strings/internal/cordz_info.hte:e631 4:
c(/usr/local/clang/include/absl/synchronization/mutex.hvo:on710is:dt74* : c ahwarning: ab'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]rs
*l _anbos  ln710_n | nu ol nlen xuppl,ll i ucMiiantkt e6WC4rh_iettc ekvrO)Mp uS{tt
er      xiL| no                                   ^gc
(k (/usr/local/clang/include/absl/base/nullability.h M: u241\t:
e22      x:| &                               ^ 
note: mexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.hu
: 241  A:241B22 | S:#L d_note: eIexpanded from macro 'absl_nonnull'fN
iTnE  eR241 N | aA#bLds_elAf_TinTnoRenI nBauUblTslEl ___CnNAooPnnTnnUuuRllEllD 
__      BN| Yo                     ^(n
tnhuilsl)
)      
|                            ^| 
                                                                         ^~~~
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/synchronization/mutex.h465: | 718A:B35S:L _warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O
G_I  N718T | E R NeAxLp_lDiEcFiItN EW_rMiAtKeEr_MCuHtEeCxKL_oOcPk_(SMTuRtIeNxG*_ EaXbTsElR_Nn(ocnonnusltl  vmoui)d
*       | a                                  ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote: )expanded from macro 'absl_nonnull';

      |                                                                    ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2pointutil.cc/usr/local/clang/include/absl/log/internal/check_op.h::18465:
:In file included from 66../src/s2/s2pointutil.h:: 25:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u722l:l74 :_ Nwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
null
        722|  |                      ^ 
 expIn file included from ls2/s2polygon.cci:c18i:
tIn file included from  ../src/s2/s2polygon.hW:r32i:
tIn file included from e../src/s2/base/logging.hr:M21u:
tIn file included from e/usr/local/clang/include/absl/log/check.hx:L37o:
cIn file included from k/usr/local/clang/include/absl/log/internal/check_impl.h(:M21u:
t/usr/local/clang/include/absl/log/internal/check_op.he:x465&: 1m:u  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_  I465N | TAEBRSNLA_LL_OAGT_TIRNITBEURTNEA_LC_ADPETFUIRNEED__MBAYK(Et_hCiHsE)C,K
_      O| P                                                                         ^~~~_
STRING_EXTERN(const void* absl_nonnull)/usr/local/clang/include/absl/synchronization/mutex.h;:
731      :| 35^:
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :450type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25: note:   expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'731
 |     450e | x p l i c i tx ,W rxi,t ecroMnustte xcLhoacrk*( Maubtselx_*n oanbnsull_ln)o
n      n| u                        ^l
l /usr/local/clang/include/absl/base/nullability.hm:u241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 C  o241n | d#idteifoinn&e  caobnsdl)_
n      o| n                                  ^n
ull/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25In file included from :
s2/s2polygon.ccIn file included from :../src/s2/s1angle.h18::
28In file included from :
../src/s2/s2polygon.hIn file included from :../src/s2/s2point.h32::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 502/usr/local/clang/include/absl/strings/cord.h::194::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::489801::4720::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  489   | 801  |      C o ncdointsito nT(1b&o ovl1 ,( *caobnsslt_ nTo2n&n uvl2l,  fcuonncs)t( vcohiadr**  aabbssll__nnuolnlnaublill ietxyp_rutnekxnto)w n{) , 
        |                     ^\

      | /usr/local/clang/include/absl/base/nullability.h                                              ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32In file included from :
s2/s2pointutil.ccIn file included from :../src/s2/base/logging.h18::
21In file included from :
../src/s2/s2pointutil.hIn file included from :/usr/local/clang/include/absl/log/check.h25::
37In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h28::
21In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/log/internal/check_op.h27::
502In file included from :../src/s2/s2coder.h1::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.h::49729::
32In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h497: | 802 : 19i:n lwarning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
e c  o802n | s t e x p r   c o n s t  vcohiadr**  aabbssll__nnuullllaabbillei tnya_muen#k#nIomwpnl (a r g ) ; 
        |                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown'\

      |                                  ^289
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | u#ldleafbiinlei tayb_suln_knnuolwlna b_lNeu l_lN_uulnlsapbelcei
f      i| e                      ^d

      |                                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2pointutil.cc
:18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 498../src/s2/s2pointutil.h::3525::
 In file included from ../src/s2/s1angle.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'28
:
In file included from ../src/s2/s2point.h:  27498:
 | In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.hi:n67t:
 In file included from v/usr/local/clang/include/absl/status/internal/status_internal.h1:,29 :
iIn file included from n/usr/local/clang/include/absl/strings/cord.ht: 94v:
2In file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t814 :c20h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _814n | o n nCuolnld ietxipornt(ebxoto)l  {( * a b s l _ n o n n u l l   f u n\c
)      (| T                                  ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bi  l241i | t#yd_eufniknneo wanb)s,l
_      n| o                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unkIn file included from ns2/s2polyline_alignment.cco:w17n:
)In file included from ,../src/s2/s2polyline_alignment.h
:      | 24                                         ^:

In file included from ../src/s2/s2polyline.h:/usr/local/clang/include/absl/base/nullability.h33::
289In file included from :../src/s2/s1angle.h34::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nullability_unknown':
24:
In file included from /usr/local/clang/include/absl/hash/hash.h  :28989 | :
#In file included from d/usr/local/clang/include/absl/hash/internal/hash.he:f79i:
ne/usr/local/clang/include/absl/base/internal/endian.h :a160b:s36l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
labi  l160i | tiyn_luinnken ouwinn t_1N6u_ltl _Luonasdp1e6c(icfoinesdt
       v| o                                 ^i
d* absl_nonnull In file included from ps2/s2pointutil.cc): 18{:

In file included from       ../src/s2/s2pointutil.h| :                                   ^25
:
In file included from ../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u815l:l16 :_ Nwarning: otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
nul  l815
 |        |                       ^ 
         T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #In file included from ds2/s2polyline_alignment.cce:f17i:
nIn file included from e../src/s2/s2polyline_alignment.h :a24b:
sIn file included from l../src/s2/s2polyline.h_:n33u:
lIn file included from l../src/s2/s1angle.ha:b28i:
lIn file included from i../src/s2/s2point.ht:y24_:
uIn file included from n/usr/local/clang/include/absl/hash/hash.hk:n89o:
wIn file included from n/usr/local/clang/include/absl/hash/internal/hash.h :_79N:
u/usr/local/clang/include/absl/base/internal/endian.hl:l164_:u27n:s pwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ifi  e164d | 
i      n| l                                 ^i
ne void Store16(void* absIn file included from ls2/s2pointutil.cc_:n18o:
nIn file included from n../src/s2/s2pointutil.hu:l25l:
 In file included from p../src/s2/s1angle.h,: 28u:
iIn file included from n../src/s2/s2point.ht:1276:
_In file included from t../src/s2/s2coder.h :v23):
 In file included from {/usr/local/clang/include/absl/status/status.h
:      67| :
                          ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2294::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
/usr/local/clang/include/absl/synchronization/mutex.h  :241830 | :#14d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b830s | l _ n o n n ublolo l_ N(o*nanbuslll_
n      o| n                     ^n
ull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2polyline_alignment.ccf:i17n:
eIn file included from  ../src/s2/s2polyline_alignment.ha:b24s:
lIn file included from _../src/s2/s2polyline.hn:o33n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n24n:
uIn file included from l/usr/local/clang/include/absl/hash/hash.hl:
89      :
| In file included from                      ^/usr/local/clang/include/absl/hash/internal/hash.h
:79:
/usr/local/clang/include/absl/base/internal/endian.h:168In file included from :s2/s2pointutil.cc36::18 :
In file included from warning: ../src/s2/s2pointutil.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/s1angle.h:  28168:
 | In file included from i../src/s2/s2point.hn:l27i:
nIn file included from e../src/s2/s2coder.h :u23i:
nIn file included from t/usr/local/clang/include/absl/status/status.h3:267_:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hL:o29a:
dIn file included from 3/usr/local/clang/include/absl/strings/cord.h2:(94c:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hs:t31 :
v/usr/local/clang/include/absl/synchronization/mutex.ho:i830d:*36 :a bwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
_no  n830n | u l l   p )  b{o
o      l|                                     ^(
*a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241f | u#ndce)f(iTn*e  aabbssll__nnuolnlnaublill i_tNyo_nunnuklnlo
w      n| )                     ^,

      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown In file included from _s2/s2polyline_alignment.ccN:u17l:
lIn file included from _../src/s2/s2polyline_alignment.hu:n24s:
pIn file included from e../src/s2/s2polyline.hc:i33f:
iIn file included from e../src/s2/s1angle.hd:
28      :
| In file included from                                  ^../src/s2/s2point.h
:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inIn file included from ls2/s2pointutil.cci:n18e:
 In file included from v../src/s2/s2pointutil.ho:i25d:
 In file included from S../src/s2/s1angle.ht:o28r:
eIn file included from 3../src/s2/s2point.h2:(27v:
oIn file included from i../src/s2/s2coder.hd:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :p94,:
 In file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31t:
3/usr/local/clang/include/absl/synchronization/mutex.h2:_831t: 46v:)  warning: {type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

      |                           ^
  831 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  tnote: yexpanded from macro 'absl_nonnull'p
en  a241m | e# daebfsiln:e: taybpsel__indoennntuiltly <_TN>o:n:ntuylple
*       | a                     ^b
sl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nIn file included from us2/s2polyline_alignment.ccl:l17a:
bIn file included from i../src/s2/s2polyline_alignment.hl:i24t:
yIn file included from _../src/s2/s2polyline.hu:n33k:
nIn file included from o../src/s2/s1angle.hw:n28 :
_In file included from N../src/s2/s2point.hu:l24l:
_In file included from u/usr/local/clang/include/absl/hash/hash.hn:s89p:
eIn file included from c/usr/local/clang/include/absl/hash/internal/hash.hi:f79i:
e/usr/local/clang/include/absl/base/internal/endian.hd:
176      :| 36                                 ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_tIn file included from  s2/s2pointutil.ccL:o18a:
dIn file included from 6../src/s2/s2pointutil.h4:(25c:
oIn file included from n../src/s2/s1angle.hs:t28 :
vIn file included from o../src/s2/s2point.hi:d27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29p:
)In file included from  /usr/local/clang/include/absl/strings/cord.h{:
94      :
| In file included from                                    ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h241::84422::10 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241   | 844# | d e f i n e  Ta*b salb_snlo_nnnounlnlu l_lN oonbnjuelclt
,      
|                            ^| 
         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2pointutil.cc24::
18In file included from :
/usr/local/clang/include/absl/hash/hash.hIn file included from :../src/s2/s2pointutil.h:8925:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h../src/s2/s1angle.h::7928:
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/s2point.h::18027::
27In file included from :../src/s2/s2coder.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h180: | 29i:
nIn file included from l/usr/local/clang/include/absl/strings/cord.hi:n94e:
 In file included from v/usr/local/clang/include/absl/strings/internal/cordz_info.ho:i31d:
 /usr/local/clang/include/absl/synchronization/mutex.hS:t845o:r45e:6 4warning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
oid  *845  | a b s l _ n obnonoull l( apb,s lu:i:ntty6p4e__ti dve)n t{i
t      y| <                          ^T
>:/usr/local/clang/include/absl/base/nullability.h::t241y:p22e:: :note: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  ambestlh_ondo)n(n)u)l;l
       _| N                                            ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   In file included from ss2/s2polygon.cct:a18t:
iIn file included from c../src/s2/s2polygon.h :b32o:
oIn file included from l../src/s2/base/logging.h :G21u:
aIn file included from r/usr/local/clang/include/absl/log/check.ha:n37t:
eIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hd:E21q:
ua/usr/local/clang/include/absl/log/internal/check_op.hl:(503c:o1n:s twarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C
ond  i503t | iAoBnS*L _aLbOsGl__InNuTlElRaNbAlLe_ CaH,E
C      K| _                                               ^O
P_/usr/local/clang/include/absl/base/nullability.hI:M257P:L23(:C hnote: eexpanded from macro 'absl_nullable'c
k_  N257E | ,# d!e=f)i
n      e|  ^a
bsl/usr/local/clang/include/absl/log/internal/check_op.h_:n488u:l32l:a bnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 _N  u488l | l a bilnel
i      n| e                      ^ 
constexpIn file included from rs2/s2polyline_alignment.ccIn file included from  :s2/s2pointutil.ccc17:o:
18nIn file included from :
s../src/s2/s2polyline_alignment.hIn file included from t:../src/s2/s2pointutil.h 24:c:
25hIn file included from :
a../src/s2/s2polyline.hrIn file included from *: ../src/s2/s1angle.h33a::
b28In file included from s:
../src/s2/s1angle.hlIn file included from :_../src/s2/s2point.h28n::
u27In file included from l:
../src/s2/s2point.hlIn file included from :a../src/s2/s2coder.h24b::
l23In file included from e:
/usr/local/clang/include/absl/hash/hash.h In file included from :n/usr/local/clang/include/absl/status/status.h89a::
m67In file included from e:
/usr/local/clang/include/absl/hash/internal/hash.h#In file included from :#/usr/local/clang/include/absl/status/internal/status_internal.h79I::
m29/usr/local/clang/include/absl/base/internal/endian.hp:
:lIn file included from 250(/usr/local/clang/include/absl/strings/cord.h: :36 94: :
  In file included from warning:  /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :
 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h   :250 923 |  :i 48n :l  i warning:  ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] e
  \u
i        n923| t |                                ^1 
6 _ t /usr/local/clang/include/absl/base/nullability.h  :L 257o :a 23d :1  6 note: ( expanded from macro 'absl_nullable'c 
o n   s 257t  |   #v do ei fd i* n  ea  b as bl s_ ln _ocnnounnluslltal b Clpoe)n  d_{iN
tu      ilo| ln                                   ^a*
b laeb/usr/local/clang/include/absl/base/nullability.h
s:      l241| _:                      ^n22
u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241b | )#In file included from ;ds2/s2polygon.cc
e:      f18| i:
                                               ^nIn file included from 
e../src/s2/s2polygon.h :/usr/local/clang/include/absl/base/nullability.ha32:b:
257sIn file included from :l../src/s2/base/logging.h23_::n21 o:
note: nIn file included from expanded from macro 'absl_nullable'n/usr/local/clang/include/absl/log/check.h
u:l37  l:
257 In file included from  | _/usr/local/clang/include/absl/log/internal/check_impl.h#N:do21en:
fn/usr/local/clang/include/absl/log/internal/check_op.hiu:nl503el: 
1a      :b|  s                     ^warning: l
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l489a:b47l:e  note: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
ull  a489b | l e 
        |                        ^ 
const T1& v1, const T2& vIn file included from 2s2/s2polyline_alignment.cc,: 17c:
oIn file included from n../src/s2/s2polyline_alignment.hs:t24 :
cIn file included from h../src/s2/s2polyline.ha:r33*:
 In file included from a../src/s2/s1angle.hb:In file included from s28s2/s2pointutil.ccl:
:_In file included from 18n../src/s2/s2point.h:
o:In file included from n24../src/s2/s2pointutil.hn:
:uIn file included from 25l/usr/local/clang/include/absl/hash/hash.h:
l:In file included from  89../src/s2/s1angle.he:
:xIn file included from 28p/usr/local/clang/include/absl/hash/internal/hash.h:
r:In file included from t79e../src/s2/s2point.h:
x:/usr/local/clang/include/absl/base/internal/endian.ht27:):
254 In file included from :{../src/s2/s2coder.h27 :: 23  :
warning:  In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] /usr/local/clang/include/absl/status/status.h
\:
67      :
|   In file included from                                               ^254/usr/local/clang/include/absl/status/internal/status_internal.h
 | :i/usr/local/clang/include/absl/base/nullability.h29n::
l241In file included from i:/usr/local/clang/include/absl/strings/cord.hn22:e:94  :
vIn file included from note: o/usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull'i:
d31 :
  S241/usr/local/clang/include/absl/synchronization/mutex.ht | :o#948rd:ee101f:6i (nwarning: vetype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o 
iadb*s   l948a_ | bn so lnb_nonuoollnl n (u_*lNalob nspnl,u_ lnului
ln      lt| a1                     ^b6
l_et  evv)a l{_
)      (| c                          ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241C:o22n:d inote: texpanded from macro 'absl_nonnull'i
on  *241  | a#bdself_innoen naublsll)_ n=o nnnuullllp t_rN;o
n      n| u         ^l
l
      /usr/local/clang/include/absl/base/nullability.h| :                     ^257
:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.hIn file included from :s2/s2polyline_alignment.cc25::
17In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2polyline_alignment.h28::
24In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2polyline.h27:In file included from :
33s2/s2polygon.ccIn file included from :
:../src/s2/s2coder.hIn file included from 18:../src/s2/s1angle.h:
23:In file included from :
28../src/s2/s2polygon.hIn file included from :
:/usr/local/clang/include/absl/status/status.hIn file included from 32:../src/s2/s2point.h:
67:In file included from :
24../src/s2/base/logging.hIn file included from :
:/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from 21:/usr/local/clang/include/absl/hash/hash.h:
29:In file included from :
89/usr/local/clang/include/absl/log/check.hIn file included from :
:/usr/local/clang/include/absl/strings/cord.hIn file included from 37:/usr/local/clang/include/absl/hash/internal/hash.h:
94:In file included from :
79/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :
:/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/internal/endian.h21:::
31258:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/synchronization/mutex.h:36:503:948: :148warning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  
258/usr/local/clang/include/absl/log/internal/check_op.h | :i  497n948:l | 32i :n  ebnote:  oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'uo
iln t(3*  2a497_b | ts  l L_ionnauldli3ln2ae(b clcoeon nsestvt aevlxo_pi)rd( *cc ooannbsssttl  _Ccnohonandrni*ut lialob snpl*)_  na{ub
ls      ll| a_                                   ^bn
loen/usr/local/clang/include/absl/base/nullability.h n:nu241al:ml22e):#  #=note: I expanded from macro 'absl_nonnull'mn
pul  l(241l  | p #t dr e; f
 i       n|  e                                               ^  
 a /usr/local/clang/include/absl/base/nullability.h b :s 241l :_ 22n :o  n note: n\expanded from macro 'absl_nonnull'u

l      l|                                   ^241_
 | N#o/usr/local/clang/include/absl/base/nullability.hdn:en257fu:il23nl:e
        note: a| expanded from macro 'absl_nullable'b                     ^
s
l  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18In file included from :
In file included from s2/s2polyline_alignment.ccIn file included from s2/s2polygon.cc:../src/s2/s2pointutil.h:17:18:
25:
In file included from :
In file included from ../src/s2/s2polyline_alignment.hIn file included from ../src/s2/s2polygon.h:../src/s2/s1angle.h:24:32:
28:
In file included from :
In file included from ../src/s2/s2polyline.hIn file included from ../src/s2/base/logging.h:../src/s2/s2point.h:33:21:
27:
In file included from :
In file included from ../src/s2/s1angle.hIn file included from /usr/local/clang/include/absl/log/check.h:../src/s2/s2coder.h:28:37:
23:
In file included from :
In file included from ../src/s2/s2point.hIn file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/status/status.h:24:21:
67:
In file included from :
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/hash/hash.hIn file included from ::/usr/local/clang/include/absl/status/internal/status_internal.h50389:::
291In file included from :
:/usr/local/clang/include/absl/hash/internal/hash.hIn file included from  :/usr/local/clang/include/absl/strings/cord.h79warning: ::
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]94
/usr/local/clang/include/absl/base/internal/endian.h:
:/usr/local/clang/include/absl/log/internal/check_op.hIn file included from 262:/usr/local/clang/include/absl/strings/internal/cordz_info.h:498:27:31:35:
 :/usr/local/clang/include/absl/synchronization/mutex.hwarning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]951note: 
:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'9
:   262warning:  |   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i498
n | l   i 951n  | e     v voioinidtd  *Sv t1ao,br seil3n_2tn( uvvlo2li,ad b*cl oean bsastrl g_c_nh oa=nr n*nu ulallbls plpt_,rn ;ou
ni      nn| ut        ^l3
l2 _/usr/local/clang/include/absl/base/nullability.het:x 257pv:r)23t :e{ x
note: t      expanded from macro 'absl_nullable')| 
                           ^{
   257  |  /usr/local/clang/include/absl/base/nullability.h# :d 241e :f 22i :n  e note:   expanded from macro 'absl_nonnull'a 
b s  l 241_  | n #u dl\el
fa      ib| nl                                  ^ee
  a_/usr/local/clang/include/absl/base/nullability.hbN:su241ll:_l22na:ob nlnote: neexpanded from macro 'absl_nonnull'u

l      l|                          ^241_
 | N#odnenfuilnle
       a| bIn file included from                      ^ss2/s2pointutil.cc
l:_18n:
oIn file included from n../src/s2/s2pointutil.hn:u25l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 954s2/s2polyline_alignment.cc | : 17 :
sIn file included from t../src/s2/s2polyline_alignment.ha:t24i:
cIn file included from  ../src/s2/s2polyline.hb:o33o:
lIn file included from  ../src/s2/s1angle.hC:a28l:
lIn file included from V../src/s2/s2point.ho:i24d:
PIn file included from t/usr/local/clang/include/absl/hash/hash.hr:F89u:
nIn file included from c/usr/local/clang/include/absl/hash/internal/hash.ht:i79o:
n/usr/local/clang/include/absl/base/internal/endian.h(:c266o:n36s:t  warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
ndi  t266i | oinn*l ianbes lu_innotn6n4u_ltl  Lco)a;d
6      4| (                                                   ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :v22o:i dnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  apb)s l{_
n      o| n                                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnullIn file included from  s2/s2pointutil.cc_:N18o:
nIn file included from n../src/s2/s2pointutil.hu:l25l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CIn file included from as2/s2polyline_alignment.ccs:t17A:
nIn file included from d../src/s2/s2polyline_alignment.hC:a24l:
lIn file included from F../src/s2/s2polyline.hu:n33c:
tIn file included from i../src/s2/s1angle.ho:n28(:
cIn file included from o../src/s2/s2point.hn:s24t:
 In file included from C/usr/local/clang/include/absl/hash/hash.ho:n89d:
iIn file included from t/usr/local/clang/include/absl/hash/internal/hash.hi:o79n:
*/usr/local/clang/include/absl/base/internal/endian.h :a270b:s27l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l270  | ci)n;l
i      n| e                                                   ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d241 :S22t:o rnote: eexpanded from macro 'absl_nonnull'6
4(  v241o | i#dd*e faibnsel _anbosnln_unloln npu,l lu i_nNto6n4n_utl lv
)       | {                     ^

      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2pointutil.ccb:s18l:
_In file included from n../src/s2/s2pointutil.ho:n25n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polygon.cc::24118::
22In file included from :../src/s2/s2polygon.h :32note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/base/logging.h:21  :
241In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l504_:n1o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l _  N504o | nAnBuSlLl_
L      O| G                     ^_
INTERNAL_CHECK_OP_IMPL(CheckIn file included from _s2/s2pointutil.ccL:E18,:
 In file included from <../src/s2/s2pointutil.h=:)25
:
      In file included from | ../src/s2/s1angle.h^:
28:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h::27488:
:In file included from 32../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :48829 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.hi:n94l:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31c:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s1069t:e32x:p rwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst  1069c | h a rb*o oalb sWla_intuWliltahbDleea dnlaimnee#(#MIumtpelx(*   a b s l _ n o n n u l l   m u ,   a\b
s      l| :                               ^:
Tim/usr/local/clang/include/absl/base/nullability.he: 257d:e23a:d lnote: iexpanded from macro 'absl_nullable'n
e)   257{ | 
#      d| e                               ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _NonnulIn file included from ls2/s2polygon.cc
:      18| :
                     ^In file included from 
../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
s2/s2pointutil.cc:18:
In file included from   ../src/s2/s2pointutil.h489: | 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
cIn file included from o../src/s2/s2point.hn:s27t:
 In file included from T../src/s2/s2coder.h1:&23 :
vIn file included from 1/usr/local/clang/include/absl/status/status.h,: 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
TIn file included from 2/usr/local/clang/include/absl/strings/cord.h&: 94v:
2In file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t1088 :c35: hwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
* a b1088s | l _ nvoonindu lEln aebxlperDteebxutg)L o{g ( c o n s\t
       c| h                                              ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dneafmien)e; 
a      b| s                                  ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: _expanded from macro 'absl_nullable'N
on  n257u | l#ld
e      f| i                     ^n
e absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mIn file included from us2/s2polygon.cct:e18x:
,In file included from 
../src/s2/s2polygon.h      :| 32                         ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  241/usr/local/clang/include/absl/log/internal/check_op.h | :#504d:e1f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l497_:n32o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l _N  o497n | n u liln
l      i| n                     ^e
 constexpr const char* absl_In file included from ns2/s2pointutil.ccu:l18l:
aIn file included from b../src/s2/s2pointutil.hl:e25 :
nIn file included from a../src/s2/s1angle.hm:e28#:
#In file included from I../src/s2/s2point.hm:p27l:
(In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
\In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                               ^:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/base/nullability.h1093::25746::23 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

  257  | 1093# | d e fvionied  aRbesmlo_vneu(lblaasbel_ei n_tNeurlnlaalb:l:eP
e      r| T                      ^h
readSynch* aIn file included from bs2/s2polygon.ccs:l18_:
nIn file included from o../src/s2/s2polygon.hn:n32u:
lIn file included from l../src/s2/base/logging.h :s21):
;In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                                             ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241/usr/local/clang/include/absl/log/internal/check_op.h::22504:: 1:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241/usr/local/clang/include/absl/log/internal/check_op.h | :#498d:e35f:i nnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
abs  l498_ | n o n n u l li n_tN ovn1n,u liln
t       | v                     ^2
, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 | In file included from  s2/s2polygon.cc : 18 :
cIn file included from o../src/s2/s2polygon.hn:s32t:
 In file included from c../src/s2/base/logging.hh:a21r:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l505 :m1s:g ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
ons  t505  | vAoBiSdL*_ LaObGs_lI_NnToEnRnNuAlLl_ CcHvE)C)K;_
O      P| _                                              ^I
MP/usr/local/clang/include/absl/base/nullability.hL:(241C:h22e:c knote: _expanded from macro 'absl_nonnull'L
T,   241< | )#
d      e| f^i
ne /usr/local/clang/include/absl/log/internal/check_op.ha:b488s:l32_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
ull   488_ | N o ninnulliln
e       | c                     ^o
nstexpr const char* absl_nullable name##Impl(     In file included from  s2/s2polyline_measures.cc : 18 :
 In file included from  ../src/s2/s2polyline_measures.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
\In file included from 
../src/s2/s2point.h      :| 25                               ^:

In file included from ../src/s2/util/coding/coder.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/base/casts.h::2334::
 In file included from note: /usr/local/clang/include/absl/log/log.hexpanded from macro 'absl_nullable':
209:
In file included from   /usr/local/clang/include/absl/log/internal/log_impl.h257: | 22#:
dIn file included from e/usr/local/clang/include/absl/log/internal/log_message.hf:i53n:
e a/usr/local/clang/include/absl/types/source_location.hb:s113l:_19n:u llwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le _Nu  l113l | a b l e 
        | c                      ^o
nst char* aIn file included from bs2/s2polygon.ccs:l18_:
nIn file included from o../src/s2/s2polygon.hn:n32u:
lIn file included from l../src/s2/base/logging.h :f21i:
lIn file included from e/usr/local/clang/include/absl/log/check.h_:n37a:
mIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :=21 :
_/usr/local/clang/include/absl/log/internal/check_op.h_:b505u:i1l:t iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
FI/usr/local/clang/include/absl/log/internal/check_op.hL:E489(:)47):  {note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'      
|                   ^
  489 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :c onote: nexpanded from macro 'absl_nonnull's
t   T2411 | &# dve1f,i nceo nasbts lT_2n&o nvn2u,l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2polyline_measures.cce:f18i:
nIn file included from e../src/s2/s2polyline_measures.h :a29b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l25l:
 In file included from _../src/s2/util/coding/coder.hN:o36n:
nIn file included from u../src/s2/base/casts.hl:l34
:
      In file included from | /usr/local/clang/include/absl/log/log.h                     ^:
209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2polygon.ccn:o18n:
nIn file included from u../src/s2/s2polygon.hl:l32 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
s2/s2polyline_measures.cc:18:
In file included from   ../src/s2/s2polyline_measures.h497: | 29 :
 In file included from i../src/s2/s1angle.hn:l28i:
nIn file included from e../src/s2/s2point.h :c25o:
nIn file included from s../src/s2/util/coding/coder.ht:e36x:
pIn file included from r../src/s2/base/casts.h :c34o:
nIn file included from s/usr/local/clang/include/absl/log/log.ht: 209c:
hIn file included from a/usr/local/clang/include/absl/log/internal/log_impl.hr:*22 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_message.hs:l53_:
n/usr/local/clang/include/absl/types/source_location.hu:l142l:a25b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ame#  #142I | m p lc(o n s t e x p r   c o n s t   c h a r *\ 
a      b| s                               ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: fexpanded from macro 'absl_nullable'u
nc  t257i | o#nd_enfaimnee( )a bcsoln_sntu lnloaebxlcee p_tN u{l
l      a| b                        ^l
e
/usr/local/clang/include/absl/base/nullability.h      :| 241                      ^:
22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2polygon.cc | :#18d:
eIn file included from f../src/s2/s2polygon.hi:n32e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n505n:u1l:l 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       intIn file included from  s2/s2polyline_measures.ccv:118,:
 In file included from i../src/s2/s2polyline_measures.hn:t29 :
vIn file included from 2../src/s2/s1angle.h,: 28c:
oIn file included from n../src/s2/s2point.hs:t25 :
cIn file included from h../src/s2/util/coding/coder.ha:r36*:
 In file included from a../src/s2/base/casts.hb:s34l:
_In file included from n/usr/local/clang/include/absl/log/log.ho:n209n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl: 22e:
xIn file included from p/usr/local/clang/include/absl/log/internal/log_message.hr:t53e:
x/usr/local/clang/include/absl/types/source_location.ht:)150 :{40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       150  |             \ 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #cdoenfsitn ec haabrs*l _anbosnln_unloln n_uNloln nfuillle
_      n| a                     ^m
e)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2polyline_measures.cc21::
18:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2polyline_measures.h506::291:
:In file included from  ../src/s2/s1angle.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:25  :
506In file included from  | ../src/s2/util/coding/coder.hA:B36S:
LIn file included from _../src/s2/base/casts.hL:O34G:
_In file included from I/usr/local/clang/include/absl/log/log.hN:T209E:
RIn file included from N/usr/local/clang/include/absl/log/internal/log_impl.hA:L22_:
C/usr/local/clang/include/absl/log/internal/log_message.hH:E121C:K41_:O Pwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
MPL  (121C | h e cLko_gGMEe,s s>a=g)e
&       | T^o
Si/usr/local/clang/include/absl/log/internal/check_op.hn:k488O:n32l:y (note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl:  :488L | o g Siinnlki*n ea bcsoln_sntoenxnpurl lc osnisntk )c;h
a      r| *                                        ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241n | a#mdee#f#iInmep la(b s l _ n o n n u l l   _ N o n n u l l\

            | |                      ^                               ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, In file included from cs2/s2polyline_measures.cco:n18s:
tIn file included from  ../src/s2/s2polyline_measures.hT:229&:
 In file included from v../src/s2/s1angle.h2:,28 :
cIn file included from o../src/s2/s2point.hn:s25t:
 In file included from c../src/s2/util/coding/coder.hh:a36r:
*In file included from  ../src/s2/base/casts.ha:b34s:
lIn file included from _/usr/local/clang/include/absl/log/log.hn:o209n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_impl.hl:l22 :
e/usr/local/clang/include/absl/log/internal/log_message.hx:p158r:t32e:x twarning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
{     158  |   \ 
L      o| g                                              ^M
es/usr/local/clang/include/absl/base/nullability.hs:a241g:e22&:  onote: pexpanded from macro 'absl_nonnull'e
ra  t241o | r#<d<e(fvionied *a basbls_ln_onnunlullalb l_eN o nvn)u l{l

            | |                      ^                               ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2polygon.cc161: | 18 :
 In file included from L../src/s2/s2polygon.ho:g32M:
eIn file included from s../src/s2/base/logging.hs:a21g:
eIn file included from &/usr/local/clang/include/absl/log/check.h :o37p:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.ha:t21o:
r/usr/local/clang/include/absl/log/internal/check_op.h<:<506(:c1o:n swarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
vo/usr/local/clang/include/absl/log/internal/check_op.hi:d497*: 32a:b snote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
nul  l497a | b l ei n lvi)n e{ 
c      o| n                                     ^s
te/usr/local/clang/include/absl/base/nullability.hx:p257r: 23c:o nnote: sexpanded from macro 'absl_nullable't
 c  h257a | r#*d eafbisnle_ naublslla_bnluel lnaabmlee# #_INmuplll(a b l e 
        |                        ^ 
           \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullabIn file included from ls2/s2pointutil.cce:
18      :
| In file included from                       ^../src/s2/s2pointutil.h
:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:In file included from 27s2/s2polygon.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2polygon.h:
:In file included from 32/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/log/check.h:
:37/usr/local/clang/include/absl/strings/cord.h:
:In file included from 109/usr/local/clang/include/absl/log/internal/check_impl.h::5321::
 /usr/local/clang/include/absl/log/internal/check_op.h:warning: 506:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]109
 | v/usr/local/clang/include/absl/log/internal/check_op.ho:i498d: In file included from 35Cs2/s2polyline_measures.cc:o: p18note: yexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
C
In file included from o../src/s2/s2polyline_measures.hr  d:498T29 | o :
S In file included from t ../src/s2/s1angle.hr :i 28n :
giIn file included from (nc../src/s2/s2point.hto :nvs251t:
,  In file included from Cio../src/s2/util/coding/coder.hnrt:d &36v :
2s,In file included from r c../src/s2/base/casts.hc,:o n34sst:
td In file included from :c/usr/local/clang/include/absl/log/log.h:h:sat209rr:
*i In file included from nag/usr/local/clang/include/absl/log/internal/log_impl.hb*s: la22_b:
ns/usr/local/clang/include/absl/log/internal/log_message.holn:_n179nu:oln35ln :uel xlwarning: p rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]dts
etx)t;)
         {179|                                                      ^ |   
  L /usr/local/clang/include/absl/base/nullability.ho g:M e241s : s22a g: e &note:   oexpanded from macro 'absl_nonnull'p e
r a  t 241o  | r #< <d\(ew
cfh      ai| rn                                  ^e_
 ta/usr/local/clang/include/absl/base/nullability.hb*: sa241lb:s_22nl:_o nnnote: unlexpanded from macro 'absl_nonnull'ul
alb  lle241  v | _)#;N
do      enf| ni                                  ^unl
el 
a/usr/local/clang/include/absl/base/nullability.h      b:| s                     ^257l
_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
In file included from e      s2/s2pointutil.cc | :a                     ^b18
s:
lIn file included from _../src/s2/s2pointutil.hn:u25l:
lIn file included from a../src/s2/s1angle.hb:l28e:
 In file included from _../src/s2/s2point.hN:u27l:
lIn file included from a../src/s2/s2coder.hb:l23e:

In file included from       /usr/local/clang/include/absl/status/status.h| :                      ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& srcIn file included from ,s2/s2polyline_measures.cc :s18t:
dIn file included from :../src/s2/s2polyline_measures.h::s29t:
rIn file included from i../src/s2/s1angle.hn:g28*:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 34d:
sIn file included from t/usr/local/clang/include/absl/log/log.h):;209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                                                      ^:
22:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::241190::2242::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | #  d190e | f i nLeo gaMbessls_angoen&n uolple r_aNtoonrn<u<l(ls
t      d| :                     ^:
ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2polyline_measures.ccn:u18l:
lIn file included from ../src/s2/s2polyline_measures.h
:      29| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: In file included from warning: s2/s2pointutil.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2pointutil.h:  25306:
 | In file included from  ../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from s/usr/local/clang/include/absl/status/status.ht:d67::
:In file included from u/usr/local/clang/include/absl/status/internal/status_internal.hn:i29q:
u/usr/local/clang/include/absl/strings/cord.he:_437p:t47r:< Lwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
Mes  s437a | g e D a t a >   d a t a _ ; 
        |    ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :       note:  expanded from macro 'absl_nonnull's
td  :241: | s#tdreifnign*e  aabbssll__nnoonnnnuullll  d_sNto)n;n
u      l| l                                              ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2pointutil.cc
:18  :
507In file included from  | ../src/s2/s2pointutil.hA:B25S:
LIn file included from _../src/s2/s1angle.hL:O28G:
_In file included from I../src/s2/s2point.hN:T27E:
RIn file included from N../src/s2/s2coder.hA:L23_:
CIn file included from H/usr/local/clang/include/absl/status/status.hE:C67K:
_In file included from O/usr/local/clang/include/absl/status/internal/status_internal.hP:_29I:
M/usr/local/clang/include/absl/strings/cord.hP:L501(:C52h:e cwarning: ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
GT,   >501) | 
        |  ^ 
exp/usr/local/clang/include/absl/log/internal/check_op.hl:i488c:i32t:  Cnote: hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
nkI  t488e | r a tionrl(icnoer dc_oinnstteerxnparl :c:oCnosrtd Rcehpa*r *a basbls_ln_onnunlullalb lter enea)m;e
#      #| I                                                   ^m
pl/usr/local/clang/include/absl/base/nullability.h(: 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                               ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: _expanded from macro 'absl_nullable'N
on  n257u | l#ld
e      f| i                     ^n
e absl_nullable _NullablIn file included from es2/s2pointutil.cc
:      18| :
                      ^In file included from 
../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2polygon.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h32::
29In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/strings/cord.h21::
504In file included from :/usr/local/clang/include/absl/log/check.h40::37 :
In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:  507504: | 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
xp/usr/local/clang/include/absl/log/internal/check_op.hl:i489c:i47t:  Cnote: hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
nkI  t489e | r a t o r ( ccoonnsstt  CTo1r&d *v 1a,b sclo_nnsotn nTu2l&l  vc2o,r dc)o;n
s      t|                                         ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld eefxipnret eaxbts)l _{n o n n u l\l
       _| N                                              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2pointutil.ccn:u18l:
lIn file included from  ../src/s2/s2pointutil.h_:N25o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2polygon.ccn:n18u:
lIn file included from l../src/s2/s2polygon.h
:      32| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr coIn file included from ns2/s2pointutil.ccs:t18 :
cIn file included from h../src/s2/s2pointutil.ha:r25*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23 :
nIn file included from a/usr/local/clang/include/absl/status/status.hm:e67#:
#In file included from I/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
(/usr/local/clang/include/absl/strings/cord.h : 525 : 35 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       525  |         \a
b      s| l                               ^:
:c/usr/local/clang/include/absl/base/nullability.ho:r257d:_23i:n tnote: eexpanded from macro 'absl_nullable'r
na  l257: | :#CdoerfdiRneep *a basbls_ln_unlullalbalbel e_ Ncuulrlraebnlte_
l      e| a                      ^f
_ = nullpIn file included from ts2/s2polygon.ccr:;18
:
      In file included from | ../src/s2/s2polygon.h                                  ^:
32:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::25721::
23In file included from :/usr/local/clang/include/absl/log/check.h :37note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
257/usr/local/clang/include/absl/log/internal/check_op.h | :#507d:e1f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l498_:n35u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
le   _498N | u l l a b l ei
n      t|                        ^v
1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2polyline_measures.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2polyline_measures.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2point.h:
:In file included from 25/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/util/coding/coder.h:
:/usr/local/clang/include/absl/strings/cord.h36::
736In file included from :../src/s2/base/casts.h17::34 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/log.h
:209:
  In file included from 736/usr/local/clang/include/absl/log/internal/log_impl.h | : 22 :
  /usr/local/clang/include/absl/log/internal/log_message.hc:o319n:s20t:  Cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
d* a  b319sIn file included from  | ls2/s2polygon.cc_ : n18o :
n In file included from nc../src/s2/s2polygon.huo:ln32slt:
  In file included from cw../src/s2/base/logging.hoc:hra21rd:
__tIn file included from *;/usr/local/clang/include/absl/log/check.h
 :      a37b| :
                ^sIn file included from l
_/usr/local/clang/include/absl/log/internal/check_impl.hn:u/usr/local/clang/include/absl/base/nullability.h21l:l:
a241/usr/local/clang/include/absl/log/internal/check_op.hb::l22511e: :c 13onote: n:sexpanded from macro 'absl_nonnull' t
warning: &   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]v241)
 | ;#
d        e511f|  | i                   ^cn
oen s/usr/local/clang/include/absl/base/nullability.hatb: s257clh:_a23nr:o* n nnote: aublsllexpanded from macro 'absl_nullable' __nN
uolnl  na257ub | l#ldleef
 i      nC| h                     ^ee
 cakbsstlr_cnmupltlraubelIem p_lN(u
l      l| a            ^b
le
/usr/local/clang/include/absl/base/nullability.h      :| 257                      ^:
23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32In file included from :
s2/s2polyline_measures.ccIn file included from :../src/s2/base/logging.h18::
21In file included from :
../src/s2/s2polyline_measures.hIn file included from :/usr/local/clang/include/absl/log/check.h29::
37In file included from :
../src/s2/s1angle.hIn file included from In file included from :/usr/local/clang/include/absl/log/internal/check_impl.hs2/s2pointutil.cc28:::
2118In file included from :
:
/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2point.hIn file included from ::../src/s2/s2pointutil.h51225:::
2517In file included from :
:../src/s2/util/coding/coder.hIn file included from  :../src/s2/s1angle.hwarning: 36:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
28
In file included from :
../src/s2/base/casts.hIn file included from   :../src/s2/s2point.h51234: | :
27 In file included from :
 /usr/local/clang/include/absl/log/log.hIn file included from  :../src/s2/s2coder.h 209:c:
23oIn file included from :
n/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from s:/usr/local/clang/include/absl/status/status.ht22: :
67c:
h/usr/local/clang/include/absl/log/internal/log_message.hIn file included from a:/usr/local/clang/include/absl/status/internal/status_internal.hr321:*:29 52:
a:/usr/local/clang/include/absl/strings/cord.hb :s795warning: l:_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]43n
:u lwarning: l  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a321
b | lie  n 795sl | i 1 n,ef  LrocgiMoeensnssdta  vgcoheiad&r  L*A basblsFlo_rnomuaglMtelFaslbuslasgehe (:sa:2obp,esr
la      t:| :o                ^Cr
o<r/usr/local/clang/include/absl/base/nullability.hd<:(*257w :cah23ab:rs l_note: t_*expanded from macro 'absl_nullable'n 
oan  nb257sul | _ln#ulld lecfaobirlned ev, )a
 b{      
s| l                                                ^_| 
                                                   ^n
/usr/local/clang/include/absl/base/nullability.hu:l/usr/local/clang/include/absl/base/nullability.h241l::a25722b::l23 e:note:  expanded from macro 'absl_nonnull' _
note: Nexpanded from macro 'absl_nullable'  u
241l |   l#257ad | b#edlefeif
in      ne| e                       ^ a
basbls_ln_onnuIn file included from nls2/s2polygon.cclu:la18lb:
l In file included from e_../src/s2/s2polygon.h N:_o32Nn:
nuIn file included from lu../src/s2/base/logging.hll:al21
b:
l      In file included from e| /usr/local/clang/include/absl/log/check.h
                     ^:      
37| :
                      ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const chIn file included from as2/s2polyline_measures.ccr:*18 :
aIn file included from b../src/s2/s2polyline_measures.hs:l29_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :e25x:
pIn file included from r../src/s2/util/coding/coder.ht:e36x:
tIn file included from )../src/s2/base/casts.h;:
34      :
| In file included from                 ^/usr/local/clang/include/absl/log/log.h
:209/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h::2222::
 /usr/local/clang/include/absl/log/internal/log_message.hnote: :expanded from macro 'absl_nonnull'340
:46  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e340  | a b sflr_ineonIn file included from nds2/s2pointutil.ccn :uv18lo:
ilIn file included from d  ../src/s2/s2pointutil.hA_:bN25os:
lnFIn file included from no../src/s2/s1angle.hru:lm28al:

tIn file included from       F../src/s2/s2point.h| l:                     ^u27
s:
hIn file included from (../src/s2/s2coder.hS:t23r:
iIn file included from n/usr/local/clang/include/absl/status/status.hg:i67f:
yIn file included from S/usr/local/clang/include/absl/status/internal/status_internal.hi:n29k:
*In file included from /usr/local/clang/include/absl/strings/cord.h s2/s2polygon.cc:a:898b18s:l:
27_In file included from n:o../src/s2/s2polygon.hn nwarning: :utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]32l
:
lIn file included from  ../src/s2/base/logging.hs  :i898n21 | k:
 ,In file included from 
 /usr/local/clang/include/absl/log/check.h      f:r| 37                                             ^i:
e
In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hd:/usr/local/clang/include/absl/base/nullability.h 21c::
o241/usr/local/clang/include/absl/log/internal/check_op.hn::s22514t::  13C:note: o rexpanded from macro 'absl_nonnull'warning: d
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]z
  I241  n | 514f# | odc*oe fniansbet s albc_shnlaur_ln*l oananbublslell _ G_nNeoutnlnCulloalr
bdlz      eI | n                     ^Cfh
oeFcokrsTtersctmipnfga(l
s      e| I                          ^m
pl(/usr/local/clang/include/absl/base/nullability.h
:      257| :            ^23
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'257
:23:   257 | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en ualblsalb_lneu l_lNaublllea b_lNeu
l      l| a                      ^b
le
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 | In file included from  s2/s2pointutil.cc : 18 :
cIn file included from o../src/s2/s2pointutil.hn:s25t:
 In file included from c../src/s2/s1angle.hh:a28r:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:
 In file included from s/usr/local/clang/include/absl/status/internal/status_internal.h1:,29 :
c/usr/local/clang/include/absl/strings/cord.ho:n927s:t43 :c hwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
* ab  s927l | _ n u l l a b l e   s 2 , 
        |                                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  #CdoerfdiRneep *a basbls_ln_unlullalbalbel e_ Nruelpl)a;b
l      e| 
                                          ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2/s2polygon.cc:18  :
257In file included from  | ../src/s2/s2polygon.h#:d32e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e516 :_17N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bl  e516
 |        |                        ^ 
 const char* absl_nonnullIn file included from  s2/s2pointutil.cce:x18p:
rIn file included from t../src/s2/s2pointutil.he:x25t:
)In file included from ;../src/s2/s1angle.h
:      28| :
                ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e929f:i26n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n929o | n n u l lv o_iNdo nSnwualpl(
I      n| l                     ^i
neRep* absl_nIn file included from os2/s2polygon.ccn:n18u:
lIn file included from l../src/s2/s2polygon.h :r32h:
sIn file included from )../src/s2/base/logging.h;:
21      :
| In file included from                          ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
: /usr/local/clang/include/absl/log/internal/check_op.h:note: 517expanded from macro 'absl_nonnull':
13:   241warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
def  i517n | ec oanbsstl _cnhoanrn*u lalb s_lN_onnunlullalb
l      e|                       ^C
heckstrcasecmptrueImpl(
      |             ^In file included from 
s2/s2pointutil.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2pointutil.h::2325::
 In file included from ../src/s2/s1angle.hnote: :expanded from macro 'absl_nullable'28
:
In file included from ../src/s2/s2point.h  :25727 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
l/usr/local/clang/include/absl/strings/cord.hlIn file included from :as2/s2polyline_measures.cc932b::l1817e:
: In file included from  _../src/s2/s2polyline_measures.hwarning: N:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u29
l:
lIn file included from   a../src/s2/s1angle.h932b: | l 28e :

 In file included from        ../src/s2/s2point.h| c:                      ^o25
n:
sIn file included from t../src/s2/util/coding/coder.hIn file included from  :s2/s2polygon.ccc36:h:
18aIn file included from :
r../src/s2/base/casts.hIn file included from *:../src/s2/s2polygon.h 34:a:
32bIn file included from :
s/usr/local/clang/include/absl/log/log.hIn file included from l:../src/s2/base/logging.h_209:n:
21uIn file included from :
l/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from l:/usr/local/clang/include/absl/log/check.ha22:b:
37l:
e/usr/local/clang/include/absl/log/internal/log_message.h In file included from d:/usr/local/clang/include/absl/log/internal/check_impl.ha398:t:21a11:
(/usr/local/clang/include/absl/log/internal/check_op.h:):  518c:owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]17s
:t ;  warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]398      
 | |                   ^ 518
  |  /usr/local/clang/include/absl/base/nullability.h  v: o257i :d *23 c:oa nbnote: ssexpanded from macro 'absl_nullable'lt
 _  ncu257lhl | aab#lred *e cfaoinbsntse&l _ avnbu)s;lll
_a      nbul| l          ^el 
asb1l,e /usr/local/clang/include/absl/base/nullability.h c:_oN257nu:slt23l :acb hlnote: aer
*expanded from macro 'absl_nullable'       
| a                      ^b
  s257l | _#nduelflianbIn file included from els2/s2pointutil.cc e: a18sb:
s2In file included from ,l../src/s2/s2pointutil.h
_:n      25u| :
                ^lIn file included from 
l../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.ha:b:28l257:
e:In file included from  23_../src/s2/s2point.h:N:u 27l:
lnote: aIn file included from bexpanded from macro 'absl_nullable'l../src/s2/s2coder.he
:
23        :
257| In file included from                       ^ | /usr/local/clang/include/absl/status/status.h
#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s934l:_31n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
ble   934_ | N u In file included from l s2/s2polyline_measures.ccl a:vbo18lie:
d
In file included from        ../src/s2/s2polyline_measures.hs| e:                      ^t29
_:
dIn file included from a../src/s2/s1angle.ht:In file included from a28s2/s2polygon.cc(:
:cIn file included from 18o../src/s2/s2point.h:
n:In file included from s25../src/s2/s2polygon.ht:
: In file included from 32c../src/s2/util/coding/coder.h:
h:In file included from a36../src/s2/base/logging.hr:
:*In file included from 21 ../src/s2/base/casts.h:
a:In file included from b34/usr/local/clang/include/absl/log/check.hs:
:lIn file included from 37_/usr/local/clang/include/absl/log/log.h:
n:In file included from u209/usr/local/clang/include/absl/log/internal/check_impl.hl:
:lIn file included from a21b/usr/local/clang/include/absl/log/internal/log_impl.h:
l:/usr/local/clang/include/absl/log/internal/check_op.he22: :
518d:a/usr/local/clang/include/absl/log/internal/log_message.ht47a::,400  :swarning: 17itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:z
e _  warning: t518type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  | 
n ) ;   
 400      c | |  o                              ^n 
s t/usr/local/clang/include/absl/base/nullability.h  :cc257oh:an23srt:*   vnote: aexpanded from macro 'absl_nullable'ob
isd  l*257_  | n#audlbeslfalib_nnleue  lalsba1bsl,el _c ncouonlsnltas bctl&hea  vr_)*N ;ua
lbl      sal| b                ^_l
neu
l/usr/local/clang/include/absl/base/nullability.h      l:| a                      ^257b
l:e23 :s 2note: ,expanded from macro 'absl_nullable'

      |                                                 ^257
 | In file included from /usr/local/clang/include/absl/base/nullability.h#s2/s2pointutil.cc:d:257e18:f:
23iIn file included from :n../src/s2/s2pointutil.h enote: : expanded from macro 'absl_nullable'25a
b:
  sIn file included from 257l../src/s2/s1angle.h | _:#n28udl:
elIn file included from fa../src/s2/s2point.hbil:en 27e_:
N uIn file included from al../src/s2/s2coder.hlb:asb23ll:
e_In file included from 
n/usr/local/clang/include/absl/status/status.h      u:| l67                      ^l:
a
In file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
_/usr/local/clang/include/absl/strings/cord.hN:u935l:l11a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                       ^
  935 |     cIn file included from hs2/s2polygon.cca:r18*:
 In file included from a../src/s2/s2polygon.hb:s32l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37s:
eIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h_:d21a:
t/usr/local/clang/include/absl/log/internal/check_op.ha:(519s:i17z:e _warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
n)  ;519  |   / /   Wcrointset  dcahtaar *t oa btshle_ nroensnuulltl
       e| x          ^p
rt/usr/local/clang/include/absl/base/nullability.he:x241t:)22;:
       | note:                 ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.hIn file included from :s2/s2polygon.cc25::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2polygon.h28::
32In file included from :
../src/s2/s2point.hIn file included from :../src/s2/base/logging.h27::
21In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/log/check.h23::
37In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h67::
21In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/log/internal/check_op.h29::
520:/usr/local/clang/include/absl/strings/cord.h13::937 :35warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | c  o937n | s t   c haabrs*l :a:bcsolr_dn_uilnltaebrlnea lC:h:eCcokrsdtRrecpa*s eacbmsplf_anluslelIambplle( 
t      r| e            ^e
()/usr/local/clang/include/absl/base/nullability.h :c257In file included from o:s2/s2polyline_measures.ccn23:s:18t :
note: ;expanded from macro 'absl_nullable'In file included from 

../src/s2/s2polyline_measures.h      :  | 29257                                  ^:
 | 
#In file included from d/usr/local/clang/include/absl/base/nullability.he../src/s2/s1angle.h:f:257i28:n:
23eIn file included from : ../src/s2/s2point.h a:note: bexpanded from macro 'absl_nullable'25s
l:
  _In file included from 257n../src/s2/util/coding/coder.h | u#:ld36le:
afbIn file included from iln../src/s2/base/casts.hee : _34aN:
busIn file included from lll/usr/local/clang/include/absl/log/log.h_a:nb209ul:
leIn file included from l
/usr/local/clang/include/absl/log/internal/log_impl.ha      b:| l                      ^22e
 :
_/usr/local/clang/include/absl/log/internal/log_message.hNIn file included from :us2/s2polygon.ccl425:l:18a31:
b:In file included from l ../src/s2/s2polygon.he:
warning: 32      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
| 
In file included from                       ^../src/s2/base/logging.h
:21  :
425In file included from  | /usr/local/clang/include/absl/log/check.h : 37L:
oIn file included from /usr/local/clang/include/absl/log/internal/check_impl.hgIn file included from :Ms2/s2pointutil.cc21e::
s18/usr/local/clang/include/absl/log/internal/check_op.hs:
:aIn file included from 521g../src/s2/s2pointutil.h:e:17F25:a:
 tIn file included from warning: a../src/s2/s1angle.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l:
(28c  o:
521nIn file included from  | s../src/s2/s2point.h t:  27c :
h In file included from ac../src/s2/s2coder.hro:*n23s :
taIn file included from  b/usr/local/clang/include/absl/status/status.hscl:h_67nao:
rnIn file included from *n/usr/local/clang/include/absl/status/internal/status_internal.h u:la29lb:
s /usr/local/clang/include/absl/strings/cord.hlf:i_938ln:ue35,l :li anwarning: bttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
lei   sn9381e | ),   A BcS Lo n_aAsTbTtsR IlBcU:Th:aEcro*_rC OdaL_bDi;s
nlt_      enr| u                              ^nl
alla:/usr/local/clang/include/absl/base/nullability.hb::lCe241o :rsd222R,:e
p       *|  note:                 ^aexpanded from macro 'absl_nonnull'
b
s/usr/local/clang/include/absl/base/nullability.hl:_  257n241:o | 23n#:dn uenote: lexpanded from macro 'absl_nullable'fl
i   naes 257_a | tb#srld_eneoenfn(iu)nl le c _oanNbosnstnlu;l_l
n
      u      | l|                                   ^l                     ^
a
b/usr/local/clang/include/absl/base/nullability.hl:e241 :_22N:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241
 |       #| d                      ^e
fine abIn file included from ss2/s2polygon.ccl:_18n:
In file included from oIn file included from s2/s2polyline_measures.ccn../src/s2/s2polygon.hn::u1832l:
:
lIn file included from In file included from  ../src/s2/s2polyline_measures.h../src/s2/base/logging.h_::N2921o:
:
nIn file included from In file included from n../src/s2/s1angle.h/usr/local/clang/include/absl/log/check.hu::l2837l:
:

In file included from In file included from       ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_impl.h| ::                     ^2521
:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/util/coding/coder.h::52136::
47In file included from :../src/s2/base/casts.h :warning: 34In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
s2/s2pointutil.cc
In file included from :/usr/local/clang/include/absl/log/log.h18  ::
521209In file included from  | :
../src/s2/s2pointutil.h In file included from : /usr/local/clang/include/absl/log/internal/log_impl.h25 ::
 22In file included from c:
../src/s2/s1angle.ho:n/usr/local/clang/include/absl/log/internal/log_message.h28s::
t426In file included from  :../src/s2/s2point.hc31:h:27a :
rwarning: In file included from *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h 
:a23b:
s  In file included from l426/usr/local/clang/include/absl/status/status.h_ | : n 67Luo:
lgIn file included from Mle/usr/local/clang/include/absl/status/internal/status_internal.has:sba29lg:
ee/usr/local/clang/include/absl/strings/cord.h F:as939t1a:l,17 (:cc owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]so
tn   cs939th |  a rc *h  aa brc*sol na_sbnts olncn_uhnaulrll*l  aafbblisleel _,s ni2not, n
ln      iun| el                                              ^,l

       /usr/local/clang/include/absl/base/nullability.ha| :s                              ^257_
:c23h/usr/local/clang/include/absl/base/nullability.h:a: r241note: s:expanded from macro 'absl_nullable'(22
):    c257note: oexpanded from macro 'absl_nonnull' | n#
sdt  e;f
i241      n | | e                ^# dae
fbi/usr/local/clang/include/absl/base/nullability.hsn:le241_ :na22bu:ls lnote: _lnexpanded from macro 'absl_nonnull'oa
bnl  en241 u | l_l# Nd_uNeolfnliannublel lea

b            s| |                      ^l                      ^
_
nonnullIn file included from  s2/s2polygon.cc_:NIn file included from 18os2/s2polyline_measures.cc:
n:In file included from n18../src/s2/s2polygon.hu:
:lIn file included from 32l../src/s2/s2polyline_measures.h:

:In file included from       29../src/s2/base/logging.h| :
:                     ^In file included from 21
../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2point.h:
:In file included from 25/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/util/coding/coder.h:
In file included from :/usr/local/clang/include/absl/log/internal/check_op.hs2/s2pointutil.cc36:::
52218In file included from ::
../src/s2/base/casts.h17In file included from ::../src/s2/s2pointutil.h34 :warning: :
25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :

/usr/local/clang/include/absl/log/log.hIn file included from :  ../src/s2/s1angle.h209522::
 | 28In file included from  :
 /usr/local/clang/include/absl/log/internal/log_impl.hIn file included from  :../src/s2/s2point.h 22:c:
27o/usr/local/clang/include/absl/log/internal/log_message.h:
n:In file included from s427../src/s2/s2coder.ht:: 3123c::
h In file included from awarning: /usr/local/clang/include/absl/status/status.hrtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:*
67 :
aIn file included from b  /usr/local/clang/include/absl/status/internal/status_internal.hs427:l | 29 _:
n /usr/local/clang/include/absl/strings/cord.ho : n941n :u 35 l:l   warning:    type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e 
x p    r941t  | e x  t )  ;cao
nb      ss| lt                ^: 
:cc/usr/local/clang/include/absl/base/nullability.hho:ar241dr:_*22i :an tbnote: eexpanded from macro 'absl_nonnull'sr
ln  _a241ln | :o#:ndnCueoflrild nfReea ipa*lbu rseal_bm_ssgn)lo _nAnBnuSullLlla _bA_TlNTeRoI ncBnUluTeEl_aClr
O(      L)| D;;                     ^


            | |                               ^                                  ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241257::2223::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullable'

    241257 |  | ##ddeeffiinnee  aabbssll__nnoullnanbullel  __NNuolnlnaubllle

            | |                      ^                      ^

In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/log_impl.h::6722:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/status/internal/status_internal.h::44629::
43:/usr/local/clang/include/absl/strings/cord.h :950warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]446
 |   Lo  g950M | e s s a gCeoQrudiReetplFylDaetb*u gaFbastla_ln(ocnonnusltl  cMhaakre*F laabtsWli_tnhoEnxnturlalC afpialcei,t
y      (| s                                          ^i
ze/usr/local/clang/include/absl/base/nullability.h_:t241 :e22x:t rnote: aexpanded from macro 'absl_nonnull')
;
        241|  |                  ^#
def/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n|                      ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2polyline_measures.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2polyline_measures.h::2329:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1angle.h::6728:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.h::2925:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/util/coding/coder.h957::3627:
:In file included from  ../src/s2/base/casts.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]34
:
In file included from /usr/local/clang/include/absl/log/log.h:209  :
957In file included from  | /usr/local/clang/include/absl/log/internal/log_impl.h : 22:
 /usr/local/clang/include/absl/log/internal/log_message.h :v454o:i38d:  Swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
Tree  (454C | o r dLRoegpM*e sasbasgle_QnuoinentullylF arteapl,( ccoonnsstt  cChoarrd*z Uapbdsalt_enSocnonpuel&l  sfciolpee,)
;      
|                                            ^| 
                          ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from In file included from s2/s2pointutil.ccs2/s2polyline_measures.cc::1818:
:
In file included from In file included from ../src/s2/s2pointutil.h../src/s2/s2polyline_measures.h::2529:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1angle.h::2828:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2725:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/coding/coder.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/casts.h::6734:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/log.h::29209:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h961::2234:
:/usr/local/clang/include/absl/log/internal/log_message.h :warning: 456type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
38:   warning: 961type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      456v | o i dL oSgeMteTsrseaegOerQEumipettyl(yCFoartdaRle(pc*o nasbts lc_hnaurl*l aabblsel _rneopn,n
u      l| l                                 ^ 
fi/usr/local/clang/include/absl/base/nullability.hl:e257,: 23i:n tnote:  expanded from macro 'absl_nullable'l
in  e257, | 
#      d| e                                     ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from In file included from ../src/s2/s1angle.hs2/s2polyline_measures.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2polyline_measures.h::2729:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6725:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/util/coding/coder.h::2936:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/base/casts.h968::3431:
:In file included from  /usr/local/clang/include/absl/log/log.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:  22968:
 | /usr/local/clang/include/absl/log/internal/log_message.h : 457 : 38v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Emp  l457a | c e T r e e ( C o r d R e p *   a b s l _ n o n n ucloln srte pc,h aMre*t haobdsIld_ennotninfuilelr  fmaeitlhuorde)_;m
s      g| )                              ^

      | /usr/local/clang/include/absl/base/nullability.h                                     ^:
241:/usr/local/clang/include/absl/base/nullability.h22::241 :note: 22expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* abslIn file included from _s2/s2pointutil.ccn:o18n:
nIn file included from u../src/s2/s2pointutil.hl:l25 :
vIn file included from )../src/s2/s1angle.h;:
28      :
| In file included from                                     ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  241/usr/local/clang/include/absl/strings/cord.h | :#1049d:e56f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl _1049n | o n nsutlalt i_cN obnonoull lG
e      t| F                     ^l
atAux(absl::cord_internal::CordRepIn file included from *s2/s2polygon.cc :a18b:
sIn file included from l../src/s2/s2polygon.h_:n32o:
nIn file included from n../src/s2/base/logging.hu:l22l:
 In file included from r/usr/local/clang/include/absl/log/log.he:p209,:

In file included from       /usr/local/clang/include/absl/log/internal/log_impl.h| :                                                       ^20
:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/base/nullability.h::63241:
:22/usr/local/clang/include/absl/log/internal/vlog_config.h:: 63:note: 43expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #d   e63f | i n ee xapblsilc_into ncnounlslt e_xNporn nVuLlolg
S      i| t                     ^e
(const char*In file included from  s2/s2pointutil.cca:b18s:
lIn file included from _../src/s2/s2pointutil.hn:o25n:
nIn file included from u../src/s2/s1angle.hl:l28 :
fIn file included from )../src/s2/s2point.h
:      27| :
                                          ^In file included from 
../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
/usr/local/clang/include/absl/strings/cord.h  :2411050 | :#45d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a b1050s | l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
   absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ll _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CorIn file included from ds2/s2polygon.ccR:e18p:
*In file included from  ../src/s2/s2polygon.ha:b32s:
lIn file included from _../src/s2/base/logging.hn:o22n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209 :
rIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.hp:,20
:
      In file included from | /usr/local/clang/include/absl/log/absl_vlog_is_on.h                                    ^:
63:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/vlog_config.h::241119::2215::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #119d | e f icnoen satb sclh_anro*n naublsll __nNoonnnnuullll 
c      o| n                     ^s
t file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2pointutil.ccn:u18l:
lIn file included from  ../src/s2/s2pointutil.h_:N25o:
nnIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:32:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnulIn file included from ls2/s2pointutil.cc :o18u:
tIn file included from )../src/s2/s2pointutil.h;:
25      :
| In file included from                                         ^../src/s2/s1angle.h
:28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fi/usr/local/clang/include/absl/strings/cord.hn:e1140 :a49b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu l1140l |   _ N o n n u l l 
        |                       ^ 
                  CordRepExternal* absl_noIn file included from ns2/s2polygon.ccn:u18l:
lIn file included from  ../src/s2/s2polygon.hr:e34p:
)In file included from ;../src/s2/mutable_s2shape_index.h
:      30| :
                                                ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h::24170::
22In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n77e: 61a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u77l | l[ [_nNoodninsuclalr
d      ]| ]                     ^ 
bool SimpleAtof(absl::stIn file included from rs2/s2pointutil.cci:n18g:
_In file included from v../src/s2/s2pointutil.hi:e25w:
 In file included from s../src/s2/s1angle.ht:r28,:
 In file included from f../src/s2/s2point.hl:o27a:
tIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 /usr/local/clang/include/absl/strings/cord.ho:u1146t:)10;:
       | warning:                                                             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241 :114622 | :C onote: rexpanded from macro 'absl_nonnull'd
Re  p241* |  #adbesfli_nneo nanbuslll_ nNoenwnEuxltle r_nNaolnRneupl(la
b      s| l                     ^:
:string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2polygon.cc::2218::
 In file included from ../src/s2/s2polygon.hnote: :expanded from macro 'absl_nonnull'34
:
In file included from ../src/s2/mutable_s2shape_index.h  :24130 | :
#In file included from d/usr/local/clang/include/absl/container/btree_map.he:f66i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :a70b:
sIn file included from l/usr/local/clang/include/absl/container/internal/layout.h_:n198o:
nIn file included from n/usr/local/clang/include/absl/strings/str_cat.hu:l116l:
 In file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:o23n:
n/usr/local/clang/include/absl/strings/numbers.hu:l88l:
62      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2pointutil.cc_:N18o:
nIn file included from n../src/s2/s2pointutil.hu:l25l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CIn file included from os2/s2polygon.ccr:d18R:
eIn file included from p../src/s2/s2polygon.h*: 34a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_30n:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from  /usr/local/clang/include/absl/container/internal/btree.hN:e70w:
EIn file included from x/usr/local/clang/include/absl/container/internal/layout.ht:e198r:
nIn file included from a/usr/local/clang/include/absl/strings/str_cat.hl:R116e:
pIn file included from (/usr/local/clang/include/absl/strings/internal/stringify_sink.h
:      23| :
                ^/usr/local/clang/include/absl/strings/numbers.h
:98:60/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
   98 |   [241[ | n#oddeifsicnaer da]b]s lb_onooln nSuilmlp l_eNAotnonbu(lalb
s      l| :                     ^:
string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2pointutil.cc                     ^:
18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2polygon.cc1183: | 18 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h: 23 :
 /usr/local/clang/include/absl/strings/numbers.h :C116o:r55d:R ewarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l116_ | n u l l a b l e   r e p ) 
        |                                                ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n ea basbls:l:_innutl1l2a8b*l ea b_sNlu_lnloanbnluel
l       | o                      ^u
t);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32In file included from _s2/s2pointutil.cct: 18i:
,In file included from  ../src/s2/s2pointutil.hc:h25a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from b/usr/local/clang/include/absl/status/status.hu:f67):
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                    ^:

/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h1222::24152::22 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 |  #1222d | eifnilnien ea bvsoli_dn oCnonrudl:l: I_nNloinnneuRlelp
:      :| S                     ^w
ap(Cord::InlineRep* absl_noIn file included from ns2/s2polygon.ccn:u18l:
lIn file included from  ../src/s2/s2polygon.hr:h34s:
)In file included from  ../src/s2/mutable_s2shape_index.h{:
30      :
| In file included from                                                    ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h::24170::
22In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116  :
241In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.h#:d23e:
f/usr/local/clang/include/absl/strings/numbers.hi:n156e: 55a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u156l | lb o_oNlo nsnauflel_
s      t| r                     ^t
o8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230In file included from :s2/s2polygon.cc20::18 :
In file included from warning: ../src/s2/s2polygon.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
34:
In file included from ../src/s2/mutable_s2shape_index.h: 301230:
 | In file included from i/usr/local/clang/include/absl/container/btree_map.hn:l66i:
nIn file included from e/usr/local/clang/include/absl/container/internal/btree.h :c70o:
nIn file included from s/usr/local/clang/include/absl/container/internal/layout.ht: 198c:
hIn file included from a/usr/local/clang/include/absl/strings/str_cat.hr:*116 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:l23_:
n/usr/local/clang/include/absl/strings/numbers.hu:l158l:a57b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ord:  :158I | nbloionle Rseapf:e:_dsattrat(o)1 6c_obnasste ({a
b      s| l                   ^:
:s/usr/local/clang/include/absl/base/nullability.ht:r257i:n23g:_ vnote: iexpanded from macro 'absl_nullable'e
w   t257e | x#td,e fiinnte1 6a_bts*l _anbuslll_anbolnen u_lNlu lvlaalbulee,

            | |                       ^                                                        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2polygon.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h34::
29In file included from :
../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/strings/cord.h30::
1234In file included from :/usr/local/clang/include/absl/container/btree_map.h20::66 :
In file included from warning: /usr/local/clang/include/absl/container/internal/btree.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h: 1981234:
 | In file included from i/usr/local/clang/include/absl/strings/str_cat.hn:l116i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :c23o:
n/usr/local/clang/include/absl/strings/numbers.hs:t160 :c57h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _160n | obnonoull ls aCfoer_ds:t:rItnol3i2n_ebRaespe:(:aabss_lc:h:asrtsr(i)n gc_ovnisetw  {t
e      x| t                   ^,
 in/usr/local/clang/include/absl/base/nullability.ht:32412:_22t:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ev aalbusel,_
n      o| n                                                        ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from In file included from ../src/s2/s2pointutil.hs2/s2polygon.cc::2518:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2polygon.h::2834:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/mutable_s2shape_index.h::2730:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/btree_map.h::2366:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/btree.h::6770:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/layout.h::29198:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/str_cat.h::1239116::
38In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/numbers.h
:162:57:  1239warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nlin  e162  | abbosoll: :scaofred__sitnrtteor6n4a_lb:a:sCeo(radbRselp:*: satbrsiln_gn_ovnineuwl lt eCxotr,d :i:nItn6l4i_nte*R eapb:s:la_sn_otnrneuel(l) 
v      a| l                                     ^u
e,/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                        ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.hs2/s2pointutil.cc::11618:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2pointutil.h::2325:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s1angle.h::16528::
39In file included from :../src/s2/s2point.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h165: | 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1245 : 38 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1245  |  i nalbisnle: :aibnstl1:2:8c*o radb_siln_tneornnnaull:l: CvoarlduRee,p *i natb sbla_sneu)l;l
a      b| l                                      ^e
 C/usr/local/clang/include/absl/base/nullability.ho:r241d::22::I nnote: lexpanded from macro 'absl_nonnull'i
ne  R241e | p#:d:etfrienee( )a
b      s| l                                     ^_
no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  _note: Nexpanded from macro 'absl_nullable'o
nn  u257l | l#
d      e| f                     ^i
ne absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_In file included from ts2/s2pointutil.cc*: 18a:
bIn file included from s../src/s2/s2pointutil.hl:_25n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hv:a27l:
uIn file included from e../src/s2/s2coder.h,:
23      :
| In file included from                                                         ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
: /usr/local/clang/include/absl/strings/cord.h:note: 1258expanded from macro 'absl_nonnull':
36:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def i1258n | ei nalbisnle_ ncoonrndu_liln t_eNronnanlu:l:lC
o      r| d                     ^R
epFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2polygon.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2polygon.h241: | 34#:
dIn file included from e../src/s2/mutable_s2shape_index.hf:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198 :
_In file included from N/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:
23      :
| /usr/local/clang/include/absl/strings/numbers.h:168:59:                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:In file included from 34s2/s2pointutil.cc:
:In file included from 18../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s2pointutil.h:
:In file included from 25/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/strings/numbers.h:
:170/usr/local/clang/include/absl/strings/cord.h::591268:: 51:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 |  b1268o | oiln lsianfee _vsotirdt oCuo3r2d_:b:aIsnel(ianbesRle:p::s:tErmipnlga_cveiTerwe et(eCxotr,d Rueipn*t 3a2b_stl*_ naobnsnlu_lnlo nrneupl,l
       v| a                                                  ^l
ue,/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                          ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou6In file included from 4s2/s2pointutil.cc_:b18a:
sIn file included from e../src/s2/s2pointutil.h(:a25b:
sIn file included from l../src/s2/s1angle.h:::28s:
tIn file included from r../src/s2/s2point.hi:n27g:
_In file included from v../src/s2/s2coder.hi:e23w:
 In file included from t/usr/local/clang/include/absl/status/status.he:x67t:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hu:i29n:
t/usr/local/clang/include/absl/strings/cord.h6:41275_:t51*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no n1275n | uilnll ivnael uveo,i
d       | C                                                          ^o
rd/usr/local/clang/include/absl/base/nullability.h:::241I:n22l:i nnote: eexpanded from macro 'absl_nonnull'R
ep  :241: | E#mdpelfaicneeT raebes(lC_onrodnRneupl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2polygon.ccs:l18_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                     ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnullIn file included from  s2/s2pointutil.ccv:a18l:
uIn file included from e../src/s2/s2pointutil.h,: 25i:
nIn file included from t../src/s2/s1angle.h :b28a:
sIn file included from e../src/s2/s2point.h):;27
:
      In file included from | ../src/s2/s2coder.h                                        ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/cord.h:1282  :24147 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine  a1282b | siln_lnionnen uvloli d_ NCoonrndu:l:lI
n      l| i                     ^n
eRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2polygon.cc
:18  :
241In file included from  | ../src/s2/s2polygon.h#:d34e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e30 :
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hs:l66_:
nIn file included from o/usr/local/clang/include/absl/container/internal/btree.hn:n70u:
lIn file included from l/usr/local/clang/include/absl/container/internal/layout.h :_198N:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hn:u116l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23                     ^:

/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_In file included from ns2/s2pointutil.cco:n18n:
uIn file included from l../src/s2/s2pointutil.hl: 25b:
uIn file included from f../src/s2/s1angle.hf:e28r:
)In file included from ;../src/s2/s2point.h
:      27| :
      ^In file included from 
../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
/usr/local/clang/include/absl/strings/cord.h  :2411290 | :#54d:e fwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
e ab s1290l | _innolninnuel lv o_iNdo nCnourldl:
:      I| n                     ^l
ineRep::In file included from Ss2/s2polygon.cce:t18T:
rIn file included from e../src/s2/s2polygon.he:O34r:
EIn file included from m../src/s2/mutable_s2shape_index.hp:t30y:
(In file included from C/usr/local/clang/include/absl/container/btree_map.ho:r66d:
RIn file included from e/usr/local/clang/include/absl/container/internal/btree.hp:*70 :
aIn file included from b/usr/local/clang/include/absl/container/internal/layout.hs:l198_:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116a:
bIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23r:
e/usr/local/clang/include/absl/strings/numbers.hp:,182
:      60| :                                                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:   182 | note: cexpanded from macro 'absl_nullable'h
ar  *257  | a#bdself_innoen naublsll _RnouulnldaTbrliep D_oNuubllleaTbolBeu
f      f| e                      ^r
(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.hIn file included from :s2/s2polygon.cc25::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2polygon.h28::
34In file included from :
../src/s2/s2point.hIn file included from :../src/s2/mutable_s2shape_index.h27::
30In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h23::
66In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h67::
70In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h29::
198:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h1301::11656:
:In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h:warning: 23type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/numbers.h:183:7 :1301  | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
line   183v | ocihda rC*o radb:s:lI_nnloinnneuRlelp :R:oCuonmdmTirtiTprFeleo(actoTnosBtu fCfoerrd(Rfelpo*a ta bfs,l _cnhualrl*a balbes lo_lndo_nrneupl,l
       b| u                                                       ^f
fe/usr/local/clang/include/absl/base/nullability.hr:)257;:
23      :|        ^
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      | In file included from                      ^s2/s2pointutil.cc
:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2polygon.ccIn file included from :../src/s2/s2point.h18::
27In file included from :
../src/s2/s2polygon.hIn file included from :../src/s2/s2coder.h34::
23In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/status/status.h30::
67In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h66::
29In file included from :
/usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/strings/cord.h70::
1302In file included from :/usr/local/clang/include/absl/container/internal/layout.h50::198 :
In file included from warning: /usr/local/clang/include/absl/strings/str_cat.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h: 231302:
 | /usr/local/clang/include/absl/strings/numbers.h : 183 : 58 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      183  |  c h a r *   a b s l _ n o n n u l l   R o u n d T rCioprFdlRoeapt*T oaBbusflf_enro(nfnluolalt  rfe,p ,c
h      a| r                                                 ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241b | u#fdfeefri)n;e
       a| b                                                         ^s
l_nonnul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from In file included from s2/s2pointutil.cc/usr/local/clang/include/absl/strings/internal/stringify_sink.h::1823:
:
In file included from ../src/s2/s2pointutil.h/usr/local/clang/include/absl/strings/numbers.h::25191:
:In file included from 42../src/s2/s1angle.h:: 28:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h  :19123 | :
sIn file included from i/usr/local/clang/include/absl/status/status.hz:e67_:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hS:i29x:
D/usr/local/clang/include/absl/strings/cord.hi:g1312i:t38s:T owarning: Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ffer (1312d | oiunbllien ed ,a bcshla:r:*c oarbds_li_nntoenrnnualll: :bCuofrfdeRre)p;*
       a| b                                         ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
Co  r241d | :#:dIenfliinnee Raebps:l:_cnloenanru(l)l  {_
N      o| n                                     ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
257      :| 23                     ^:
 note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2polygon.ccs:l18_:
nIn file included from u../src/s2/s2polygon.hl:l34a:
bIn file included from l../src/s2/mutable_s2shape_index.he: 30_:
NIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66a:
bIn file included from l/usr/local/clang/include/absl/container/internal/btree.he:
70      :
| In file included from                       ^/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2pointutil.ccexpanded from macro 'absl_nonnull':
  241 | #de18f:
iIn file included from n../src/s2/s2pointutil.he: 25a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polygon.cc:18:
In file included from  ../src/s2/s2polygon.h1321: | 34i:
nIn file included from l../src/s2/mutable_s2shape_index.hi:n30e:
 In file included from v/usr/local/clang/include/absl/container/btree_map.ho:i66d:
 In file included from C/usr/local/clang/include/absl/container/internal/btree.ho:r70d:
:In file included from :/usr/local/clang/include/absl/container/internal/layout.hI:n198l:
iIn file included from n/usr/local/clang/include/absl/strings/str_cat.he:R116e:
pIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h::C23o:
p/usr/local/clang/include/absl/strings/numbers.hy:T198o:A53r:r awarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
cha  r198* |  cahbasrl*_ naobnsnlu_lnlo ndnsutl)l  cFoanssttI n{t
T      o| B                                               ^u
ffe/usr/local/clang/include/absl/base/nullability.hr:(241i:n22t:3 2note: _expanded from macro 'absl_nonnull't
 i  ,241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu lblu f_fNeorn)n
u      l| l                                                    ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_objectIn file included from _s2/s2projections.ccs:i18z:
eIn file included from (../src/s2/s2projections.hO:b27j:
,In file included from  ../src/s2/r2.h0:)22 :
<In file included from  ../src/s2/util/math/vector.hN:,36 :
\In file included from 
../src/s2/base/logging.h      :| 21                 ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2polygon.cc::4018:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/nullstream.h../src/s2/s2polygon.h::3734:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/string_view.h::3053:
:In file included from 54/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from    /usr/local/clang/include/absl/strings/internal/stringify_sink.h53: | 23c:
o/usr/local/clang/include/absl/strings/numbers.hn:s208t:e7x:p rwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
tri  n208g | _cvhiaerw*  NaublsllS_anfoenSnturliln gFVaisetwI(nctoTnosBtu fcfhearr(*u ianbts1l2_8n uil,l acbhlaer *p )a b{s
l      _| n                                                     ^o
nnull b/usr/local/clang/include/absl/base/nullability.hu:f257f:e23r:) 
note:       expanded from macro 'absl_nullable'| 
      ^
  /usr/local/clang/include/absl/base/nullability.h257: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneuflilnaeb laeb s_lN_unlolnanbullel
       _| N                      ^o
nnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49In file included from :s2/s2polyline_measures.cc :warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2polyline_measures.h:29  :
216In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h : 180 : 42 :   warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   a180b | sAlB_SnLo_nAnTuTlRlI BbUuTfEf_ePrU)R
E      _| F                                                ^U
NC/usr/local/clang/include/absl/base/nullability.hT:I241O:N22 :c onote: nexpanded from macro 'absl_nonnull's
t   c241h | a#rd*e faibnsel _anbosnln_unloln nMualkle C_hNeocnknFualill
S      t| r                     ^i
ng(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2polyline_measures.ccs2/s2polygon.cc::1818:
:
In file included from In file included from ../src/s2/s2polyline_measures.h../src/s2/s2polygon.h::2934:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/mutable_s2shape_index.h::2830:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/btree_map.h::2566:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/container/internal/btree.h::3670:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/container/internal/layout.h::36198:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/str_cat.h::21116:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::3723:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/log/internal/check_impl.h::21721::
5/usr/local/clang/include/absl/log/internal/check_op.h:: 181warning: :'diagnose_if' is a clang extension [-Wgcc-compat]25
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]217
 |      181  | A B S L _cIoNnTsEtR NaAbLs_lN:E:ESDt_aMtIuNs_*S IaZbEs(l
_      n| o    ^n
nu/usr/local/clang/include/absl/base/macros.hl:l251 :s18t:a tnote: uexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE's
, c  o251n | s t  _c_haatrt*r iabbustle__n_o(n(nduilalg nporseef_iixf)(;_
_      b| u                        ^i
lt/usr/local/clang/include/absl/base/nullability.hi:n241_:o22b:j enote: cexpanded from macro 'absl_nonnull't
_s  i241z | e#(dOebfji,n e0 )a b<s lN_,n o\n
n      u| l                 ^l
 _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* abIn file included from ss2/s2polygon.ccl:_18n:
oIn file included from n../src/s2/s2polygon.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.hA:s30S:
tIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:u66s:
(In file included from c/usr/local/clang/include/absl/container/internal/btree.ho:n70s:
tIn file included from  /usr/local/clang/include/absl/container/internal/layout.ha:b198s:
lIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::S116t:
aIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:s23&:
 /usr/local/clang/include/absl/strings/numbers.hs:)247 :{47
:       | warning:                            ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:  22247: |   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l li
n      t| _                     ^t
ype* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2polyline_measures.ccb:s18l:
_In file included from n../src/s2/s2polyline_measures.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n25u:
lIn file included from l../src/s2/util/coding/coder.h
:      36| :
In file included from                      ^In file included from s2/s2pointutil.cc
../src/s2/base/casts.h::1836:
:
In file included from In file included from ../src/s2/s2pointutil.h../src/s2/base/logging.h::2521:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/check.h::2837:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_impl.h::2721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2coder.h::19323::
21In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
  /usr/local/clang/include/absl/strings/cord.h193: | 1505c:o41n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl: :1505S | tiantluisn*e  avbosild_ nCoonrndu:l:lC oApsySTtoaAtrursa(ycIomnpslt( cahbasrl*: :aSbtsalt_unsoOnrn<uTl>l&  dss)t ){ 
c      o| n                    ^s
t /usr/local/clang/include/absl/base/nullability.h{:
241      :| 22                                        ^:
 note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fine a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2pointutil.cc
:18:
In file included from ../src/s2/s2pointutil.h  :20225 | :
 In file included from  ../src/s2/s1angle.he:x28p:
lIn file included from i../src/s2/s2point.hc:i27t:
 In file included from C../src/s2/s2coder.hh:e23c:
kIn file included from O/usr/local/clang/include/absl/status/status.hp:M67e:
sIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ha:g29e:
B/usr/local/clang/include/absl/strings/cord.hu:i1514l:d29e:r (warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst  1514c | h a r *  caobrsdl__innotnenrunlall :e:xCporrtdeRxetp)*; 
a      b| s                                             ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: texpanded from macro 'absl_nonnull'r
ee  )241  | {#
d      e| f                            ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| lIn file included from                      ^_s2/s2polygon.ccn
:o18n:
nIn file included from u../src/s2/s2polygon.hl:l34 :
_In file included from N../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl:
66      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | In file included from is2/s2polyline_measures.ccn:l18i:
nIn file included from e../src/s2/s2polyline_measures.h :s29i:
zIn file included from e../src/s2/s1angle.h_:t28 :
FIn file included from a../src/s2/s2point.hs:t25H:
eIn file included from x../src/s2/util/coding/coder.hT:o36B:
uIn file included from f../src/s2/base/casts.hf:e36r:
ZIn file included from e../src/s2/base/logging.hr:o21P:
aIn file included from d/usr/local/clang/include/absl/log/check.h1:637(:
uIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:t216:
4/usr/local/clang/include/absl/log/internal/check_op.h_:t209 :v15a:l ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har  *209  | a b sclo_nnsotn ncuhlalr *o uatb)s l{_
n      o| n                                                           ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241N:e22w:S tnote: rexpanded from macro 'absl_nonnull'i
ng  (241) | ;#
d      e| f              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void In file included from Ms2/s2polygon.cca:k18e:
CIn file included from h../src/s2/s2polygon.he:c34k:
OIn file included from p../src/s2/mutable_s2shape_index.hV:a30l:
uIn file included from e/usr/local/clang/include/absl/container/btree_map.hS:t66rIn file included from :
is2/s2pointutil.ccnIn file included from :g/usr/local/clang/include/absl/container/internal/btree.h(18:s:
70tIn file included from :
d../src/s2/s2pointutil.hIn file included from ::/usr/local/clang/include/absl/container/internal/layout.h:25o:s:
198tIn file included from r:
../src/s2/s1angle.heIn file included from :a/usr/local/clang/include/absl/strings/str_cat.h28m::
&116In file included from  :
../src/s2/s2point.hoIn file included from :s/usr/local/clang/include/absl/strings/internal/stringify_sink.h,27 :c:
o23In file included from n:
../src/s2/s2coder.hs:/usr/local/clang/include/absl/strings/numbers.ht23: :
v330In file included from o:i/usr/local/clang/include/absl/status/status.hd41*: :67a :
bIn file included from warning: s/usr/local/clang/include/absl/status/internal/status_internal.hltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_:n
u29l:
  l/usr/local/clang/include/absl/strings/cord.ha330b: | l1530e  :p )55 ;:
         warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
                                                           ^ 
   1530/usr/local/clang/include/absl/base/nullability.h  |  :i 257n :l i23 n: e    Cnote:  oexpanded from macro 'absl_nullable' r 
d :   : 257C  | h# ud ne kfiInittnee_ rataybtsploe_rn*: u:alClbahbsullne_ k_nNIuoltlneanbrluaelt
lo       ro(u| ct                      ^o)
n s{t
       C| o                                        ^r
d* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | c#odredf)i n{e
       a| b                                                      ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull In file included from os2/s2polyline_measures.ccu:t18):
 In file included from {../src/s2/s2polyline_measures.h
:      29| :
                                                   ^In file included from 
../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2225::
 In file included from note: ../src/s2/util/coding/coder.hexpanded from macro 'absl_nonnull':
36:
  In file included from 241../src/s2/base/casts.h | :#36d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l276 :_13N:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll
        | 276                     ^ | 
const void* absl_nullable operator<<(stdIn file included from :s2/s2polyline_simplifier.cc::o18s:
tIn file included from r../src/s2/s2polyline_simplifier.he:a63m:
&In file included from ,../src/s2/s1chord_angle.h
:      29| :
            ^In file included from 
../src/s2/s1angle.h:28In file included from /usr/local/clang/include/absl/base/nullability.h:
s2/s2polygon.cc:In file included from :257../src/s2/s2point.h18:::
2327In file included from ::
../src/s2/s2polygon.h In file included from :note: ../src/s2/s2coder.h34expanded from macro 'absl_nullable'::

23In file included from :
../src/s2/mutable_s2shape_index.h  In file included from :257/usr/local/clang/include/absl/status/status.h30 | :#:
d67eIn file included from f:
i/usr/local/clang/include/absl/container/btree_map.hIn file included from n:e/usr/local/clang/include/absl/status/internal/status_internal.h66 :a:
b29In file included from s:
/usr/local/clang/include/absl/container/internal/btree.hlIn file included from _:/usr/local/clang/include/absl/strings/cord.hn70u:l:
82lIn file included from :
a/usr/local/clang/include/absl/container/internal/layout.hbIn file included from :l/usr/local/clang/include/absl/crc/internal/crc_cord_state.h198e: :
23_In file included from N:
/usr/local/clang/include/absl/strings/str_cat.huIn file included from :l/usr/local/clang/include/absl/crc/crc32c.hl116a:b:
l32In file included from e:
/usr/local/clang/include/absl/strings/internal/stringify_sink.h
In file included from :      /usr/local/clang/include/absl/strings/str_format.h23| :                      ^:
84
/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 340/usr/local/clang/include/absl/strings/internal/str_format/bind.h::5329::
 /usr/local/clang/include/absl/strings/internal/str_format/parser.hwarning: :In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]227s2/s2polyline_measures.cc
::1118  ::
340 In file included from  | warning: ../src/s2/s2polyline_measures.h 'enable_if' is a clang extension [-Wgcc-compat]: 
29 :
 In file included from    ../src/s2/s1angle.h227 : |  28  :
  In file included from   ../src/s2/s2point.h  :  57725    warning:
  sIn file included from      e generated../src/s2/util/coding/coder.h n .
:a b36 l :
e In file included from _ ../src/s2/base/casts.hi f: (36 s:
 t In file included from r _../src/s2/base/logging.h f: o 21r :
m In file included from a t/usr/local/clang/include/absl/log/check.h _a:ib37ns:
tlIn file included from e:/usr/local/clang/include/absl/log/internal/check_impl.hr::nu21ai:
ln:/usr/local/clang/include/absl/log/internal/check_op.ht:1E:2n8277s*u: ra50eb:Cs oln_warning: snttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]oen
xnpur  l(l277f o | oru mt a )t  ) {, 

              | |                                                      ^           ^ 

 /usr/local/clang/include/absl/base/nullability.h : 241 :/usr/local/clang/include/absl/strings/internal/str_format/parser.h 22: :229  : note:  11 expanded from macro 'absl_nonnull': 
    warning:  241'enable_if' is a clang extension [-Wgcc-compat]  | 
 #   d 229e  | f  i  n e     a  b  s  l _  cneoonnnansbutllel _ vi_ofiN(odsn*tn rua_lbflso
lr_      mn| a                     ^ut
_lilnatbelren avla:l:uVea)l;i
d      F| o                                                 ^r
ma/usr/local/clang/include/absl/base/nullability.ht:I257m:p23l:< Cnote: .expanded from macro 'absl_nullable'.
.>  (257f | o#rdmeaftIn file included from i)ns2/s2polygon.cce, :
a18      b:
s| lIn file included from _          ^../src/s2/s2polygon.hn
u:l34l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e30 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.hu:l66l:
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hl:e70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                      ^:
198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |   In file included from  s2/s2polyline_measures.cc : 18 :
 In file included from  ../src/s2/s2polyline_measures.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.hi:n21t:
_In file included from t/usr/local/clang/include/absl/log/check.hy:p37e:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n278o:n13n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
out)   278{ | 
c      o| n                                           ^s
t /usr/local/clang/include/absl/base/nullability.hv:o241i:d22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien eo paebrsalt_onro<n<n(usltld :_:Noosntnruelalm
&      ,|                       ^s
td::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullaIn file included from bs2/s2polygon.ccl:e18 :
_In file included from N../src/s2/s2polygon.hu:l34l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                      ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polyline_measures.cc::24118::
22In file included from :../src/s2/s2polyline_measures.h :note: 29expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f25i:
nIn file included from e../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                     ^292
:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostreIn file included from as2/s2polygon.ccm:<18c:
hIn file included from a../src/s2/s2polygon.hr:,34 :
TIn file included from r../src/s2/mutable_s2shape_index.ha:i30t:
sIn file included from >/usr/local/clang/include/absl/container/btree_map.h&:,66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h            ^:
70:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.h::241198::
22In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:  23241:
 | /usr/local/clang/include/absl/strings/numbers.h#:d356e:f56i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_  n356o | n n u l l   _ N o n n u l l 
        |                       ^ 
               In file included from  s2/s2polyline_measures.cc : 18 :
 In file included from  ../src/s2/s2polyline_measures.h :a29b:
sIn file included from l../src/s2/s1angle.h:::28u:
iIn file included from n../src/s2/s2point.ht:1252:
8In file included from *../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from o/usr/local/clang/include/absl/log/check.hu:t37):
 In file included from {/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                                       ^/usr/local/clang/include/absl/log/internal/check_op.h
:293:/usr/local/clang/include/absl/base/nullability.h49::241 :warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'  
293 | In file included from    s2/s2polyline_simplifier.cc241 : |  18 #:
 d In file included from e ../src/s2/s2polyline_simplifier.hf :i 63n :
e In file included from   ../src/s2/s1chord_angle.h a: 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/strings/cord.hc:h82a:
rIn file included from */usr/local/clang/include/absl/crc/internal/crc_cord_state.h :a23b:
sIn file included from l/usr/local/clang/include/absl/crc/crc32c.h_:nb32so:
lnIn file included from n_u/usr/local/clang/include/absl/strings/str_format.hnl:lo)84n;:

n      /usr/local/clang/include/absl/strings/internal/str_format/bind.hu| :                                                ^l143
l: 11_/usr/local/clang/include/absl/base/nullability.h:N: o241warning: n'enable_if' is a clang extension [-Wgcc-compat]:n
22u:l l  
note: 143expanded from macro 'absl_nonnull'       | 
|                       ^   
 241  |  # d e f i neen aabblsel__info(nsnturl_lf o_rNmoantn_uilnlt
e      r| n                     ^a
l::EnsureConstexpr(s), "coIn file included from ns2/s2polyline_measures.ccs:t18e:
xIn file included from p../src/s2/s2polyline_measures.hr: 29t:
rIn file included from a../src/s2/s1angle.hp:"28):
,In file included from 
../src/s2/s2point.h      :| 25In file included from           ^:
s2/s2pointutil.cc
In file included from :../src/s2/util/coding/coder.h18::
36In file included from :
../src/s2/s2pointutil.hIn file included from :../src/s2/base/casts.h25::
36In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/base/logging.h28::
21In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/log/check.h27::
37In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h23::
21In file included from :
/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/check_op.h::67295:
:In file included from 20/usr/local/clang/include/absl/status/internal/status_internal.h:: 29/usr/local/clang/include/absl/strings/internal/str_format/bind.h:
warning: :/usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]149:
:166622::48   warning: :295'enable_if' is a clang extension [-Wgcc-compat]  | 
warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
  n149s |   t1666  s | i ig nn le di_n _cea htCatrorr*i dab busCltoe_r_ndo_n:(:n(uAeldnvla aobnplceerea_tAionrfd<(<Rs(etsardt_(dfC:oh:rambraaIstti_eci_ronsatttreorerna*ma< clha:ba:srE,l nT_srnuoarnientusC>lo&l,n 
sit      te| ,                   ^x

p      r| (/usr/local/clang/include/absl/base/nullability.h                                               ^s:
)241,:/usr/local/clang/include/absl/base/nullability.h
22:      :241|  :                     ^22note: 
:expanded from macro 'absl_nonnull' 
note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln/usr/local/clang/include/absl/strings/internal/str_format/bind.h u:_lN158lo:n 22n_:Nu olwarning: nl'enable_if' is a clang extension [-Wgcc-compat]
n
u      l| l                       ^
158
       | |                       ^ 
    __attribIn file included from us2/s2polyline_measures.cct:e18_:
_In file included from (../src/s2/s2polyline_measures.h(:e29n:
aIn file included from b../src/s2/s1angle.hl:e28_:
iIn file included from f../src/s2/s2point.h(:V25a:
lIn file included from i../src/s2/util/coding/coder.hd:F36o:
rIn file included from m../src/s2/base/casts.ha:t36I:
mIn file included from p../src/s2/base/logging.hlIn file included from :<s2/s2pointutil.ccA21:r:
18gIn file included from :
s/usr/local/clang/include/absl/log/check.hIn file included from .:../src/s2/s2pointutil.h.37:.:
25>In file included from :
(/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from s:../src/s2/s1angle.h)21:,:
28 /usr/local/clang/include/absl/log/internal/check_op.h:
":In file included from b296../src/s2/s2point.ha::d6327 ::
f In file included from owarning: ../src/s2/s2coder.hrtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:m
23a:
tIn file included from    /usr/local/clang/include/absl/status/status.ht296:r | 67a :
p In file included from  "/usr/local/clang/include/absl/status/internal/status_internal.h ):) 29 ):
 
 /usr/local/clang/include/absl/strings/cord.h       : |  1672                     ^ : 
 41 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1672  |  i n l i n e   /usr/local/clang/include/absl/strings/internal/str_format/bind.hv :o 162 i :d 22  : C  warning: o 'enable_if' is a clang extension [-Wgcc-compat]r 
cdo:n  :s162tA | d  v sa ni gcn ee (_dC _hcahaatrr*tI rtiaebbrusatlt_eno_orn_n*( u(laleb)n;sal
b_l      ne| o                                                              ^_ni
nfu(/usr/local/clang/include/absl/base/nullability.hlV:la241 l:iit22d,F: os rinote: mzexpanded from macro 'absl_nonnull'ae
t_I  tm241 pn | l_#b<dyeAtrfeignss)e.  .{a.
>b      (s| ls_                                        ^n)o
n,n/usr/local/clang/include/absl/base/nullability.hu l:"l241b :a_22dN: o fnnote: onexpanded from macro 'absl_nonnull'url
lm
  a      241t|  |                      ^ #t
dreafpi"n)e) )a
b      s| l                     ^_
nonnull _NonIn file included from ns2/s2polyline_measures.ccu:l18l:

In file included from       ../src/s2/s2polyline_measures.h| :                     ^29
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnullIn file included from )s2/s2polygon.cc
:      18| :
                        ^In file included from 
../src/s2/s2polygon.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :../src/s2/mutable_s2shape_index.h22::30 :
In file included from note: /usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nonnull':
66:
  In file included from 241/usr/local/clang/include/absl/container/internal/btree.h | :#70d:
eIn file included from f/usr/local/clang/include/absl/container/internal/layout.hi:n198e:
 a/usr/local/clang/include/absl/strings/str_cat.hb:s398l:_24n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll _  N398o | n n uAlllp
h      a| N                     ^u
m(const char* absl_nullable c_str In file included from  s2/s2polyline_measures.cc/:/18 :
NIn file included from O../src/s2/s2polyline_measures.hL:I29N:
TIn file included from (../src/s2/s1angle.hr:u28n:
tIn file included from i../src/s2/s2point.hm:e25/:
eIn file included from x../src/s2/util/coding/coder.hp:l36i:
cIn file included from i../src/s2/base/casts.ht:)36
:
      In file included from | ../src/s2/base/logging.h                       ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37257:
:In file included from 23/usr/local/clang/include/absl/log/internal/check_impl.h:: 21note: :
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LO  G257_ | I#NdTeEfRiNnAeL _aDbEsFlI_NnEu_lMlAaKbEl_eC H_ENCuKl_lOaPb_lSeT
R      I| N                      ^G
_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
In file included from   s2/s2polygon.cc450: | 18 :
 In file included from  ../src/s2/s2polygon.h : 34 :
xIn file included from ,../src/s2/mutable_s2shape_index.h :x30,:
 In file included from c/usr/local/clang/include/absl/container/btree_map.ho:n66s:
tIn file included from  /usr/local/clang/include/absl/container/internal/btree.hc:h70a:
rIn file included from */usr/local/clang/include/absl/container/internal/layout.h :a198b:
s/usr/local/clang/include/absl/strings/str_cat.hl:_431n:o15n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
)
      |                           ^431
 |  /usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innuel laabbslle_ ndoantnau(l)l  c_oNnosntn u{l lr
e      t| u                     ^r
n piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 257s2/s2polyline_measures.cc::2318::
 In file included from note: ../src/s2/s2polyline_measures.hexpanded from macro 'absl_nullable':
29:
In file included from   ../src/s2/s1angle.h257: | 28#:
dIn file included from e../src/s2/s2point.hf:i25n:
eIn file included from  ../src/s2/util/coding/coder.ha:b36s:
lIn file included from _../src/s2/base/casts.hn:u36l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from _/usr/local/clang/include/absl/log/check.hN:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:

      /usr/local/clang/include/absl/log/internal/check_op.h| :                      ^455
:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_M/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2region_term_indexer.cc -o s2/s2region_term_indexer.o
AKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2polyline_simplifier.cc::45518::
1In file included from :../src/s2/s2polyline_simplifier.h :63warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1chord_angle.h:/usr/local/clang/include/absl/log/internal/check_op.h29::
450In file included from :../src/s2/s1angle.h25::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
27:
In file included from   ../src/s2/s2coder.h450: | 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
xIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :x29,:
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:n82s:
tIn file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hc:h23a:
rIn file included from */usr/local/clang/include/absl/crc/crc32c.h :a32b:
sl/usr/local/clang/include/absl/strings/str_format.h_:n115o:n52n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |                         ^
  115/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :   note: cexpanded from macro 'absl_nonnull'o
ns  t241  | s#tdre_ffionrem aatb_siln_tneornnnaull:l: P_aNrosnenduFlolr
m      a| t                     ^B
ase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2polyline_measures.cc241::1822:
:In file included from  ../src/s2/s2polyline_measures.h:note: 29expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f25i:
nIn file included from e../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                     ^456
:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2polyline_simplifier.cce: 18a:
bIn file included from s../src/s2/s2polyline_simplifier.hl:_63n:
oIn file included from n../src/s2/s1chord_angle.hn:u29l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2polyline_measures.cc29::
18In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2polyline_measures.h82::
29In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :../src/s2/s1angle.h23::
28In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :../src/s2/s2point.h32::
25/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 155../src/s2/util/coding/coder.h::3636::
 In file included from warning: ../src/s2/base/casts.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/base/logging.h:  21155:
 | In file included from  /usr/local/clang/include/absl/log/check.h :e37x:
pIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hi:c21i:
t/usr/local/clang/include/absl/log/internal/check_op.h :F456o:r1m:a twarning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
un/usr/local/clang/include/absl/log/internal/check_op.ht:C450a:p25t:u rnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'(
in  t450* |   a b s l _ nxo,n nxu,l lc opn)s t:  cph_a(rp*)  a{b}s
l      _| n                                   ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:)22
:       | note:                         ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.hIn file included from In file included from :s2/s2polyline_measures.ccs2/s2pointutil.cc29:::
1818In file included from :
:
../src/s2/s1angle.hIn file included from In file included from :../src/s2/s2polyline_measures.h../src/s2/s2pointutil.h28:::
2925In file included from :
:
../src/s2/s2point.hIn file included from In file included from :../src/s2/s1angle.h../src/s2/s1angle.h27:::
2828In file included from :
:
../src/s2/s2coder.hIn file included from In file included from :../src/s2/s2point.h../src/s2/s2point.h23:::
2527In file included from :
:
/usr/local/clang/include/absl/status/status.hIn file included from In file included from :../src/s2/util/coding/coder.h../src/s2/s2coder.h67:::
3623In file included from :
:
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from In file included from :../src/s2/base/casts.h/usr/local/clang/include/absl/status/status.h29:::
3667In file included from :
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h82:::
11921In file included from ::
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h14In file included from ::/usr/local/clang/include/absl/log/check.h23 :warning: :
37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :

/usr/local/clang/include/absl/crc/crc32c.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h32  ::
11921/usr/local/clang/include/absl/strings/str_format.h | :
: 164 /usr/local/clang/include/absl/log/internal/check_op.h:S:8t457:a: twarning: 1utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:
R e  warning: p164*type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] |   
a bis  nlt457_* | n oAaBnSbLn_suLlOl_Gl_nI oCNnTlEnRounNlelA(L _
UD      EnF| u             ^Is
eNdE(/usr/local/clang/include/absl/base/nullability.h_):M A241K{: E22_r:Ce tHnote: Euexpanded from macro 'absl_nonnull'Cr
nK   _pO241P__ | ;S#T RdI}NeG
_f      iE| XnT       ^Ee
R N/usr/local/clang/include/absl/base/nullability.ha(:ubn241ss:ilg22_n:ne donote:  nexpanded from macro 'absl_nonnull'cnh
au  rl241)l | ; 
#_d      Ne| of^ni
nnue/usr/local/clang/include/absl/log/internal/check_op.hl l:a
b449      s:| l                     ^31_
n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
ll   _449N | o n neuxltle
r      n|                       ^t
empIn file included from ls2/s2pointutil.ccat:e18 :
cIn file included from o../src/s2/s2pointutil.hn:s25tIn file included from :
 s2/s2polyline_simplifier.ccIn file included from c:../src/s2/s1angle.hh18a::
r28In file included from *:
 ../src/s2/s2polyline_simplifier.haIn file included from b:s../src/s2/s2point.h63l::
_27nIn file included from :
o../src/s2/s1chord_angle.hIn file included from n:n../src/s2/s2coder.h29u:l:
l23In file included from  :
../src/s2/s1angle.hMIn file included from a:/usr/local/clang/include/absl/status/status.hk28e:C:
h67eIn file included from c:
k/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.hO:p:S125t27r::
i14nIn file included from g:../src/s2/s2coder.h(  warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 23
 :
\In file included from 
  /usr/local/clang/include/absl/status/status.h      125:|  |                               ^67 
:
 In file included from S/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.ht::a24129t::
u22In file included from s:/usr/local/clang/include/absl/strings/cord.hR :e82note: p:
expanded from macro 'absl_nonnull'*In file included from 
 /usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:b  23s241:
l | In file included from #_d/usr/local/clang/include/absl/crc/crc32c.henf:ion32ne:
 na/usr/local/clang/include/absl/strings/str_format.hub:ls165ll_:n o8nCn:ull lowarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e_
NAonn  dn165uU | nlr le 
fi      (n
| t                     ^      *
|               ^a
bs/usr/local/clang/include/absl/base/nullability.hlIn file included from :_s2/s2polyline_measures.cc241n::o1822n:
:nIn file included from  u../src/s2/s2polyline_measures.hnote: lexpanded from macro 'absl_nonnull':l
29 :
  pIn file included from 241_../src/s2/s1angle.h | ;#:
d28      e:
| f       ^In file included from i
../src/s2/s2point.hn:/usr/local/clang/include/absl/base/nullability.he25: :
241aIn file included from :b../src/s2/util/coding/coder.h22s::l36 _:
note: nIn file included from expanded from macro 'absl_nonnull'o../src/s2/base/casts.h
n:n  36u241l:
 | l#In file included from  d../src/s2/base/logging.h_eN:foi21nn:
neIn file included from u /usr/local/clang/include/absl/log/check.hla:lb37
s:
      lIn file included from | _/usr/local/clang/include/absl/log/internal/check_impl.h                     ^n:
o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l457l: 1_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ul/usr/local/clang/include/absl/log/internal/check_op.hl:
In file included from 450      s2/s2pointutil.cc:| :                     ^2518
::
 In file included from ../src/s2/s2pointutil.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'25
:
In file included from ../src/s2/s1angle.h  :45028 | :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from x../src/s2/s2coder.h,: 23x:
,In file included from  /usr/local/clang/include/absl/status/status.hc:o67n:
s/usr/local/clang/include/absl/status/internal/status_internal.ht: 128c:h14a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _128n | o n nSutlalt)u
s      R| e                        ^p
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | C#ldoenfeiAnned Uanbrself_(n)o ncnounlslt ;_
N      o| n             ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2polyline_simplifier.ccn:e18 :
aIn file included from b../src/s2/s2polyline_simplifier.hs:l63_:
nIn file included from In file included from o../src/s2/s1chord_angle.hs2/s2polyline_measures.ccn::n2918u:
:
lIn file included from In file included from l../src/s2/s1angle.h../src/s2/s2polyline_measures.h ::_2829N:
:
oIn file included from In file included from n../src/s2/s2point.h../src/s2/s1angle.hn::u2728l:
:
lIn file included from In file included from 
../src/s2/s2coder.h../src/s2/s2point.h      ::| 2325                     ^:
:

In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/util/coding/coder.h::6736:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/casts.h::2936:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/logging.h::8221:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/log/check.h::2337:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/log/internal/check_impl.h::3221:
:
/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/log/internal/check_op.h::380458::431::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    380458 |  | sAtBdS:L:_sLtOrGi_nIgN&T ESRtNrAALp_pDeEnFdIFNoEr_mMaAtK(Es_tCdH:E:CsKt_rOiPn_gS*T RaIbNsGl__EnXoTnEnRuNl(lc odnsstt, 
s      t| d                                          ^:
:s/usr/local/clang/include/absl/base/nullability.ht:r241i:n22g:& )note: ;expanded from macro 'absl_nonnull'

      |   ^241
 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e449f:i31n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl_  n449o | n n uelxlt e_rNno ntneumlpll
a      t| e                     ^ 
const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
In file included from   s2/s2polyline_simplifier.cc450: | 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h : 63 :
xIn file included from ,../src/s2/s1chord_angle.h :x29,:
 In file included from c../src/s2/s1angle.ho:n28s:
tIn file included from  ../src/s2/s2point.hc:h27a:
rIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
)In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 82                        ^:

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/crc/crc32c.h:: 32:
note: /usr/local/clang/include/absl/strings/str_format.hexpanded from macro 'absl_nonnull':
440:24  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e440  | aibnstl _FnPorninnutlFl( s_tNdo:n:nFuIlLlE
*       | a                     ^b
sl_nonnull output, const ForIn file included from ms2/s2polyline_measures.cca:t18S:
pIn file included from e../src/s2/s2polyline_measures.hc:<29A:
rIn file included from g../src/s2/s1angle.hs:.28.:
.In file included from >../src/s2/s2point.h&: 25f:
oIn file included from r../src/s2/util/coding/coder.hm:a36t:
,In file included from 
../src/s2/base/casts.h      :| 36                       ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h
:21  :
241/usr/local/clang/include/absl/log/internal/check_op.h | :#459d:e1f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _459n | oAnBnSuLl_lL O_GN_onnulIlN
T      E| R                     ^N
AL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::stringIn file included from _s2/s2polyline_simplifier.ccv:i18e:
wIn file included from &../src/s2/s2polyline_simplifier.h):;63
:
      In file included from | ../src/s2/s1chord_angle.h^:
29:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1angle.h::44928::
31In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
../src/s2/s2coder.h:23:
  In file included from 449/usr/local/clang/include/absl/status/status.h | : 67 :
eIn file included from x/usr/local/clang/include/absl/status/internal/status_internal.ht:e29r:
nIn file included from  /usr/local/clang/include/absl/strings/cord.ht:e82m:
pIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:t23e:
 In file included from c/usr/local/clang/include/absl/crc/crc32c.ho:n32s:
t/usr/local/clang/include/absl/strings/str_format.h :c469h:a20r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n469o | ninnutl lS NMParkienCthFe(cckhOaprS*t raibnsgl(_ n o n\n
u      l| l                              ^ 
ou/usr/local/clang/include/absl/base/nullability.ht:p241u:t22,:  snote: texpanded from macro 'absl_nonnull'd
::  s241i | z#ed_etf isniez ea,b
s      l| _                   ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnullIn file included from  s2/s2polyline_measures.cc_:N18o:
nIn file included from n../src/s2/s2polyline_measures.hu:l29l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2polyline_simplifier.ccd:e18f:
iIn file included from n../src/s2/s2polyline_simplifier.he: 63a:
bIn file included from s../src/s2/s1chord_angle.hl:_29n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FoIn file included from rs2/s2polyline_measures.ccm:a18t:
RIn file included from a../src/s2/s2polyline_measures.hw:S29i:
nIn file included from k../src/s2/s1angle.h(:T28*:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 36r:
aIn file included from w../src/s2/base/logging.h): 21 :
/In file included from //usr/local/clang/include/absl/log/check.h :N37O:
LIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                   ^460
:1:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
460 |   A241B | S#Ld_eLfOiGn_eI NaTbEsRlN_AnLo_nDnEuFlIlN E__NMoAnKnEu_lClH
E      C| K                     ^_
OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFIIn file included from Ns2/s2polygon.ccE:_18M:
AIn file included from K../src/s2/s2polygon.hE:_34C:
HIn file included from E../src/s2/mutable_s2shape_index.hC:K30_:
OIn file included from P/usr/local/clang/include/absl/container/btree_map.h_:S66T:
RIn file included from I/usr/local/clang/include/absl/container/internal/btree.hN:G70_:
EIn file included from X/usr/local/clang/include/absl/container/internal/layout.hT:E198R:
N/usr/local/clang/include/absl/strings/str_cat.h(:c501o:n32s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   501a | bvsoli_dn oAnpnpuelnld)P;i
e      c| e^s
(s/usr/local/clang/include/absl/log/internal/check_op.ht:d450:::25s:t rnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
g*   450a | b s l _ n o nxn,u lxl,  dceosnts,t
       c| h                               ^a
r* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241) | 
#      d| e                        ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, constIn file included from  s2/s2polyline_simplifier.ccc:h18a:
rIn file included from *../src/s2/s2polyline_simplifier.h :a63b:
sIn file included from l../src/s2/s1chord_angle.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
)In file included from 
../src/s2/s2point.h      :| 27                        ^:

In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e82f:
iIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.he: 23a:
bIn file included from s/usr/local/clang/include/absl/crc/crc32c.hl:_32n:
o/usr/local/clang/include/absl/strings/str_format.hn:n860u:l43l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l860l | 
        | f                     ^r
iend void AbslFormatFlush(FormIn file included from as2/s2polyline_measures.cct:S18i:
nIn file included from k../src/s2/s2polyline_measures.h*: 29a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u25l:
lIn file included from  ../src/s2/util/coding/coder.hs:i36n:
kIn file included from ,../src/s2/base/casts.h
:      36| :
                                          ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/check.h::2237::
 In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 463#:d1e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s463l | _AnBoSnLn_uLlOlG __INNoTnEnRuNlAlL
_      D| E                     ^F
INE_MAKE_CHECK_OP_STRING_EXTERIn file included from Ns2/s2polyline_simplifier.cc(:
18      :
| In file included from ^../src/s2/s2polyline_simplifier.h
:63:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s1chord_angle.h449::2931:
:In file included from  ../src/s2/s1angle.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'28
:
In file included from ../src/s2/s2point.h:  27449:
 | In file included from  ../src/s2/s2coder.h :e23x:
tIn file included from e/usr/local/clang/include/absl/status/status.hr:n67 :
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
aIn file included from t/usr/local/clang/include/absl/strings/cord.he: 82c:
oIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:t23 :
cIn file included from h/usr/local/clang/include/absl/crc/crc32c.ha:r32*:
 /usr/local/clang/include/absl/strings/str_format.ha:b867s:l60_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   M867a | k e CehxepclkiOcpiStt rFionrgm(a t S i\n
k      (| s                              ^t
r_/usr/local/clang/include/absl/base/nullability.hf:o241r:m22a:t _note: iexpanded from macro 'absl_nonnull'n
te  r241n | a#ld:e:fFionrem aatbSsiln_knIomnpnlIn file included from u*s2/s2polygon.ccl l: a_18bN:
soIn file included from ln../src/s2/s2polygon.h_n:un34lo:
lnIn file included from 
n../src/s2/mutable_s2shape_index.h      u:| l30l                     ^:
 
In file included from s/usr/local/clang/include/absl/container/btree_map.h):
66      :
| In file included from In file included from                                                            ^s2/s2polyline_measures.cc/usr/local/clang/include/absl/container/internal/btree.h
::1870/usr/local/clang/include/absl/base/nullability.h:
:
:In file included from In file included from 241../src/s2/s2polyline_measures.h/usr/local/clang/include/absl/container/internal/layout.h:::2229198::
:
 In file included from /usr/local/clang/include/absl/strings/str_cat.hnote: ../src/s2/s1angle.h:expanded from macro 'absl_nonnull':635
28::
  36In file included from 241:../src/s2/s2point.h |  :#warning: 25dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
e
fIn file included from i../src/s2/util/coding/coder.hn  :e635 36 | ai:
bnslIn file included from li../src/s2/base/casts.h_nn:eo 36nv:
nouIn file included from ildl../src/s2/base/logging.h  S:_t21Nr:
oAnIn file included from pnp/usr/local/clang/include/absl/log/check.huel:nld37
(:
      sIn file included from | t                     ^/usr/local/clang/include/absl/log/internal/check_impl.hd
::21::
s/usr/local/clang/include/absl/log/internal/check_op.ht:r464i:n26g:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sIn file included from l  s2/s2polyline_simplifier.cc_464:n | 18 o:
 nIn file included from  n ../src/s2/s2polyline_simplifier.huc:ol63ln:
)sIn file included from  t../src/s2/s1chord_angle.h{ :}u29
n:
      sIn file included from | i../src/s2/s1angle.h                                   ^g:
n28e:
d/usr/local/clang/include/absl/base/nullability.h In file included from c:../src/s2/s2point.hh241a:r:27*22:
 :aIn file included from  ../src/s2/s2coder.hbnote: :expanded from macro 'absl_nonnull's23l
:
_In file included from n  /usr/local/clang/include/absl/status/status.ho241n:n | u67l#l:
)d;e
In file included from In file included from f      s2/s2predicates.cc/usr/local/clang/include/absl/status/internal/status_internal.hi| :                         ^:n18
29e:
/usr/local/clang/include/absl/base/nullability.h:
 In file included from :In file included from a../src/s2/s2predicates.h241/usr/local/clang/include/absl/strings/cord.hb:::s572282l:
::
_In file included from  In file included from n../src/s2/s1chord_angle.hnote: /usr/local/clang/include/absl/crc/internal/crc_cord_state.hexpanded from macro 'absl_nonnull'o::
n2923n  u:
:
241lIn file included from In file included from  | l../src/s2/s1angle.h/usr/local/clang/include/absl/crc/crc32c.h# d::_e28f32iN:
:
n/usr/local/clang/include/absl/strings/str_format.heoIn file included from : n../src/s2/s2point.h869anb:s:u25l40l:
_:nloIn file included from n nwarning: u
l../src/s2/util/coding/coder.hltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      : 
| 36_                     ^:
  N
oIn file included from n869../src/s2/base/casts.hn | :u 34l :
lsIn file included from 
t/usr/local/clang/include/absl/log/log.h      r:| _                     ^209f
:
oIn file included from In file included from rs2/s2polygon.ccm/usr/local/clang/include/absl/log/internal/log_impl.h:In file included from a:18s2/s2polyline_measures.cct20:
:_:
In file included from 18iIn file included from ../src/s2/s2polygon.h:
n/usr/local/clang/include/absl/log/absl_vlog_is_on.h:In file included from t:34../src/s2/s2polyline_measures.he63:
:r:
In file included from 29n../src/s2/mutable_s2shape_index.ha/usr/local/clang/include/absl/log/internal/vlog_config.h:
:l:In file included from 30:49../src/s2/s1angle.h:
:::In file included from F3728/usr/local/clang/include/absl/container/btree_map.ho::
:r In file included from 66m../src/s2/s2point.hwarning: :
a:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from t25
/usr/local/clang/include/absl/container/internal/btree.hS:
:iIn file included from    70n../src/s2/util/coding/coder.h49:
k: | In file included from I36i/usr/local/clang/include/absl/container/internal/layout.hm:
n:pIn file included from t198l../src/s2/base/casts.h :
*:R/usr/local/clang/include/absl/strings/str_cat.h 36e:a:
g636bIn file included from i:s../src/s2/base/logging.hs29l:t:_21e nwarning: :
rotype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from An
n/usr/local/clang/include/absl/log/check.hnu:  dl37636Il:
 | n In file included from vis/usr/local/clang/include/absl/log/internal/check_impl.hoti:iin21dak:
 l_/usr/local/clang/include/absl/log/internal/check_op.hSi;:tz
464re      :A(| 26pV                                       ^:pL
 eo/usr/local/clang/include/absl/base/nullability.hwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g:d
S241(/usr/local/clang/include/absl/base/nullability.hi:s:t22t241e:d:* :22 note: a::expanded from macro 'absl_nonnull'bs 
st  rnote: lexpanded from macro 'absl_nonnull'241i_
n | on  #ng241dn* | eu #fladilben sfevl)i;n
e _       aan| bbo                                    ^ssn
lln__/usr/local/clang/include/absl/base/nullability.hnun:olo241nln ndu:neul22sll:tl  , _note:  _Nexpanded from macro 'absl_nonnull'cNo
oo  nnn241nnsu | utl #llA
ldl      pe
f| h                     ^a      i
N| nu                     ^em
&  aab)sIn file included from ;l
s2/s2polyline_measures.cc_      :n| 18                            ^o:

nIn file included from n../src/s2/s2polyline_measures.hu/usr/local/clang/include/absl/base/nullability.h:l:29l241:
 :In file included from _22../src/s2/s1angle.hN::o 28nnote: :
nexpanded from macro 'absl_nonnull'In file included from u
../src/s2/s2point.hl:  l25
241:
       | In file included from #| ../src/s2/util/coding/coder.hd                     ^:e
36f:
iIn file included from n../src/s2/base/casts.he: 36a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21In file included from o:
s2/s2predicates.ccn/usr/local/clang/include/absl/log/internal/check_op.h:n:18u463:
l:In file included from l1../src/s2/s2predicates.h
::       57| :
warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 

../src/s2/s1chord_angle.h:29:
  In file included from 463../src/s2/s1angle.h | :A28B:
SIn file included from L../src/s2/s2point.h_:L25O:
GIn file included from _../src/s2/util/coding/coder.hI:N36T:
EIn file included from R../src/s2/base/casts.hIn file included from N:s2/s2polygon.ccA34L::
_18In file included from D:
/usr/local/clang/include/absl/log/log.hEIn file included from :F../src/s2/s2polygon.h209I::
N34In file included from E:
/usr/local/clang/include/absl/log/internal/log_impl.h_In file included from :M../src/s2/mutable_s2shape_index.h20A::
K30In file included from E:
/usr/local/clang/include/absl/log/absl_vlog_is_on.h_In file included from :C/usr/local/clang/include/absl/container/btree_map.h63H::
E66/usr/local/clang/include/absl/log/internal/vlog_config.hC:
:KIn file included from 63_/usr/local/clang/include/absl/container/internal/btree.h:O:43P70:_:
 SIn file included from Twarning: R/usr/local/clang/include/absl/container/internal/layout.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I:
N198G:
   _/usr/local/clang/include/absl/strings/str_cat.h63E: | X 637T :EeR29xNp:(l 
iwarning:       ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| i
^t
 c  /usr/local/clang/include/absl/log/internal/check_op.ho637:n | 450sv:to25ei:xd p note: rSexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' t
VrL  oA450gp | S pi t ee ( nc oxd,n( sxst,  tcchodanrs:*t:  acsbhsatlr_r*ni oannbnsgull_*l n aofnb)ns
ul      l_l| )n                                          ^
o
      n| /usr/local/clang/include/absl/base/nullability.hn                        ^:u
241l/usr/local/clang/include/absl/base/nullability.h:l:22 241:d: e22note: s:expanded from macro 'absl_nonnull't 
,note:    expanded from macro 'absl_nonnull'241c
 | o#  dn241es | ft#id neAef lianpbes hla_abnsNoln_unnumoln&ln  u_laN,lo 
n_      nNuo| lnl                            ^n
u
      l| l/usr/local/clang/include/absl/base/nullability.h                     ^
:
      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2polyline_measures.ccl: 18_:
NIn file included from o../src/s2/s2polyline_measures.hn:n29u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465In file included from :s2/s2predicates.cc1::In file included from 18 s2/s2polygon.cc:
warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 18
../src/s2/s2predicates.h:
:In file included from   57../src/s2/s2polygon.h465:
: | In file included from A34../src/s2/s1chord_angle.hB:
:SIn file included from L29../src/s2/mutable_s2shape_index.h_:
:LIn file included from O30../src/s2/s1angle.hG:
:_In file included from 28I/usr/local/clang/include/absl/container/btree_map.h:
N:In file included from T66../src/s2/s2point.hE:
:RIn file included from 25N/usr/local/clang/include/absl/container/internal/btree.h:
A:In file included from L70_../src/s2/util/coding/coder.hD:
:EIn file included from 36F/usr/local/clang/include/absl/container/internal/layout.h:
I:In file included from N198../src/s2/base/casts.hE:
:_/usr/local/clang/include/absl/strings/str_cat.h34M::
A639In file included from K:/usr/local/clang/include/absl/log/log.hE29:_:209C :
warning: Htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from E
/usr/local/clang/include/absl/log/internal/log_impl.hC:K20  _:
639OIn file included from  | P/usr/local/clang/include/absl/log/absl_vlog_is_on.h_v:oS63Ti:
R/usr/local/clang/include/absl/log/internal/vlog_config.hdI:N 96SG:t_60Er:XA Tpwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]pRe
nNd((c   os96nt | s dt  :fv:roisiedtn*rdi  anibgnstl* _ lnaoobngs_nli_unnltIn file included from ole)s2/s2pointutil.ccnr;n:n
a18u      l:
l| :^In file included from l: 
../src/s2/s2pointutil.hRd:e/usr/local/clang/include/absl/log/internal/check_op.he25s:tg:
449,iIn file included from : s../src/s2/s1angle.h31cto::en28s r:
tnote:  AIn file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'An../src/s2/s2point.h
ld:p  hI27449an:
 | NiIn file included from  utm../src/s2/s2coder.h i&a l:eai23x,z
e:
t      (In file included from e| V/usr/local/clang/include/absl/status/status.hr                            ^L:n
o67 gtSe/usr/local/clang/include/absl/base/nullability.h:
im:t/usr/local/clang/include/absl/status/internal/status_internal.hp241e:l:*149a22 :t:ea13  bc:onote: s nexpanded from macro 'absl_nonnull'lwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
_tn 
c  ho241  anr | 149#n* | du lacelb ofsvl)_nni;son
tne       n u| c                                                           ^alh
blasr/usr/local/clang/include/absl/base/nullability.h lM*:_a 241nka:oeb22nCs:nhle cu_lnote: knlexpanded from macro 'absl_nonnull'Oop 
nS_  ntN241uro | lin#lnnd gueM(lfa lik e 
nC\      eh
|  e                           ^ac| 
bk                              ^sF
la_/usr/local/clang/include/absl/base/nullability.hin:ol241nS:nt22ur:lIn file included from i nls2/s2polygon.ccnote: g :expanded from macro 'absl_nonnull'(_18

N:
        oIn file included from | 241n../src/s2/s2polygon.h            ^ | n:
#ud34lel/usr/local/clang/include/absl/base/nullability.h:
f
i:nIn file included from       241e../src/s2/mutable_s2shape_index.h| : :                     ^22a30
:b:
 sIn file included from note: l/usr/local/clang/include/absl/container/btree_map.hexpanded from macro 'absl_nonnull'_:
n66  o:
241nIn file included from  | n/usr/local/clang/include/absl/container/internal/btree.hu#l:dl70e :
f_In file included from iN/usr/local/clang/include/absl/container/internal/layout.hno:en198n :
au/usr/local/clang/include/absl/strings/str_cat.hbl:ls641
l:_      29n| :o                     ^ n
warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lIn file included from l   s2/s2polyline_measures.cc641_: | Nv18ooni:
nduIn file included from  lS../src/s2/s2polyline_measures.hlt:
r29      A:
| pIn file included from                      ^p../src/s2/s1angle.h
e:n28d:
(In file included from s../src/s2/s2point.ht:d25::
:In file included from s../src/s2/util/coding/coder.ht:r36In file included from i:
s2/s2pointutil.ccnIn file included from :g../src/s2/base/casts.h18*::
 36In file included from a:
../src/s2/s2pointutil.hbIn file included from :s../src/s2/base/logging.h25l::
_21In file included from n:
../src/s2/s1angle.hoIn file included from :n/usr/local/clang/include/absl/log/check.h28n::
u37In file included from l:
../src/s2/s2point.hlIn file included from : /usr/local/clang/include/absl/log/internal/check_impl.h27d::
e21In file included from s:
../src/s2/s2coder.ht/usr/local/clang/include/absl/log/internal/check_op.h:,:23 465:
c:In file included from o66/usr/local/clang/include/absl/status/status.hn::s 67t:
 /usr/local/clang/include/absl/status/internal/status_internal.hAwarning: :ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]150p
:h25a:N   u465warning: m | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A&B
S La_,  
L150      O | G|                              ^_ 
I N/usr/local/clang/include/absl/base/nullability.hT :cE241RoNn:sA22tL:_  Dnote: aEexpanded from macro 'absl_nonnull'Fb
Is  Nl241:E | :_#MSAdteaftiunse* K Ea_aCbHbEsCslKl__n_nooOnnnPn_uulSlTlRl I _NsGN_tEoaXntnTuEusRl,Nl 
(cc      oo| nns                     ^ts
t  vcohiadr**  aabbssll__nnoonnnnuullll) In file included from ;p
s2/s2polygon.ccr      :e| 18f                                                                 ^:
i
In file included from x../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h):;:34
241:
      :In file included from | 22../src/s2/mutable_s2shape_index.h                        ^::
 30/usr/local/clang/include/absl/base/nullability.h:
note: :In file included from expanded from macro 'absl_nonnull'241/usr/local/clang/include/absl/container/btree_map.h
::2266  ::
241 In file included from  | note: #/usr/local/clang/include/absl/container/internal/btree.hdexpanded from macro 'absl_nonnull':In file included from e
70s2/s2predicates.ccf:
i  :In file included from n24118/usr/local/clang/include/absl/container/internal/layout.he | :
: #In file included from 198ad../src/s2/s2predicates.h:
be:/usr/local/clang/include/absl/strings/str_cat.hsf57:li:
646_nIn file included from :ne../src/s2/s1chord_angle.h36o ::na29 nwarning: ub:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lsIn file included from 
ll../src/s2/s1angle.h _  n:_646No28 | on:
innIn file included from nnu../src/s2/s2point.hlull:li
l25n       :
e| _In file included from                       ^N../src/s2/util/coding/coder.hv
o:oni36ndu:
In file included from  lIn file included from s2/s2polyline_measures.ccSlt../src/s2/base/casts.h:
r:18      A34:
| p                     ^p:
In file included from 
eIn file included from n../src/s2/s2polyline_measures.h/usr/local/clang/include/absl/log/log.hd::(29209In file included from s:
:
s2/s2pointutil.cctIn file included from In file included from :d../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/log_impl.h18::::
:28s20In file included from :
t:
../src/s2/s2pointutil.hIn file included from rIn file included from :../src/s2/s2point.hi/usr/local/clang/include/absl/log/absl_vlog_is_on.h25:n::
25g63In file included from :
*:
../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/vlog_config.hIn file included from  :a:../src/s2/util/coding/coder.h28b119::
s:36In file included from l15:
../src/s2/s2point.h_:In file included from :n ../src/s2/base/casts.h27owarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
n36
In file included from n:
../src/s2/s2coder.hu  In file included from :l119../src/s2/base/logging.h23l | : :
 21 In file included from d:
c/usr/local/clang/include/absl/status/status.heIn file included from o:s/usr/local/clang/include/absl/log/check.hn67t:,:
 s37t/usr/local/clang/include/absl/status/internal/status_internal.hc:
 :oIn file included from c150n/usr/local/clang/include/absl/log/internal/check_impl.hh:s:a58t21r: :
* A/usr/local/clang/include/absl/log/internal/check_op.h warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:ap
h465ba:  sN66150lu: | _m  n&warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o  
na ,n/usr/local/clang/include/absl/base/nullability.hc
oun:      ls241| lt:                                   ^  22
ca:bo/usr/local/clang/include/absl/base/nullability.h sn:note: ls241expanded from macro 'absl_nonnull':t:
: 22S  f:t241i a | lnote: texpanded from macro 'absl_nonnull'#eu
d_es  ;f*i241n
e  | a       #b| adse              ^blf
s_iln/usr/local/clang/include/absl/base/nullability.hn_o:enn241 onn:nau22ubls:lll  l_snnote:  expanded from macro 'absl_nonnull'toa_
Nntn  ouu241nsl, | n#ul  dlec_olf
Nnoi      nsn| e                     ^tn  
aubclhsIn file included from lals2/s2polyline_measures.cc_
r:n      *18o|                       ^:
na
bIn file included from ns../src/s2/s2polyline_measures.hul:l_29ln:
 oIn file included from _n../src/s2/s1angle.hNn:ou28nl:
nlIn file included from  u../src/s2/s2point.hlp:lr25
e:
      fIn file included from | i../src/s2/util/coding/coder.h                     ^x:
)36;:

In file included from       ../src/s2/base/casts.h| :                                                         ^36
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e465f:i1n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
s  l465_ | nAoBnSnLu_lLlO G__NIoNnTnEuRlNlA
L      _| D                     ^E
FINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyStrinIn file included from gs2/s2predicates.cc(:)18;:

In file included from       ../src/s2/s2predicates.h| :                            ^57
:
In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22../src/s2/s1angle.h:: 28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:  25241:
 | In file included from #../src/s2/util/coding/coder.hd:e36f:
iIn file included from n../src/s2/base/casts.he: 34a:
bIn file included from s/usr/local/clang/include/absl/log/log.hl:_209n:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hn:u20l:
lIn file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h_:N63o:
n/usr/local/clang/include/absl/log/internal/vlog_config.hn:u133l:l37
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  133 | int RegisterAndIIn file included from ns2/s2pointutil.cci:t18i:
aIn file included from l../src/s2/s2pointutil.hi:z25e:
(In file included from V../src/s2/s1angle.hL:o28g:
SIn file included from i../src/s2/s2point.ht:e27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_/usr/local/clang/include/absl/status/status.hn:o733n:n29u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
);  733
 |        |                                      ^s
tat/usr/local/clang/include/absl/base/nullability.hi:c241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
st  d241: | :#sdterfiinnge*  aabbssll__nnoonnnnuullll  _MNoovnenduFlrlo
m      S| t                     ^r
ing();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 157s2/s2pointutil.cc | :V18L:
oIn file included from g../src/s2/s2pointutil.hS:i25t:
eIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
e/usr/local/clang/include/absl/status/status.h :S751e:t61V:M owarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
leLi  s751t | H e asdtFaotriTce sutiOnntlpyt(r
_      t|            ^P
oi/usr/local/clang/include/absl/base/nullability.hn:t257e:r23T:o Rnote: eexpanded from macro 'absl_nullable'p
(s  t257a | t#udse_fiinntee ranbasll:_:nSutlaltaubslRee p_*N ualblsalb_lneo
n      n| u                      ^l
l r);
      | In file included from                                                             ^s2/s2predicates.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2predicates.h241::5722:
:In file included from  ../src/s2/s1chord_angle.hnote: :expanded from macro 'absl_nonnull'29
:
In file included from   ../src/s2/s1angle.h241: | 28#:
dIn file included from e../src/s2/s2point.hf:i25n:
eIn file included from  ../src/s2/util/coding/coder.ha:b36s:
lIn file included from _../src/s2/base/casts.hn:o34n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209 :
_In file included from N/usr/local/clang/include/absl/log/internal/log_impl.ho:n20n:
uIn file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.hl:
63      :
| /usr/local/clang/include/absl/log/internal/vlog_config.h                     ^:
158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSiIn file included from ts2/s2pointutil.cce:*18 :
aIn file included from b../src/s2/s2pointutil.hs:l25_:
nIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he: 27v:
)In file included from ;../src/s2/s2coder.h
:      23| :
              ^
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h752::25744::23 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nullable'
    257752 |  | # d esftiantei ca bcsoln_sntu lsltaabtlues __iNnutlelranballe:
:      S| t                      ^a
tusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from ../src/s2/base/casts.hs2/s2polyline_measures.cc::3418:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h../src/s2/s2polyline_measures.h::20929:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s1angle.h::2228:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2point.h::4725:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h../src/s2/util/coding/coder.h::2736:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/proto.h../src/s2/base/casts.h::3436:
:
In file included from /usr/local/clang/include/absl/types/span.h../src/s2/base/logging.h::21221::
22In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  /usr/local/clang/include/absl/log/internal/check_op.h212: | 504 : 1u:s iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]g
 poi  n504t | eArB S=L _TL*O Ga_bIsNlT_EnRuNlAlLa_bCiHlEiCtKy__OuPn_kInMoPwLn(;C
h      e| c                     ^k
_LE/usr/local/clang/include/absl/base/nullability.h,: 289<:=34):
       | note: ^expanded from macro 'absl_nullability_unknown'

/usr/local/clang/include/absl/log/internal/check_op.h  :289488 | :#32d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
e a  b488s | l _ niunlllianbei lciotnys_tuenxkpnro wcno n_sNtu lclh_aurn*s paebcsilf_ineudl
l      a| b                                 ^l
e name##ImplIn file included from (s2/s2predicates.cc : 18 :
 In file included from  ../src/s2/s2predicates.h : 57 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from \../src/s2/s2point.h
:      25| :
                               ^In file included from 
../src/s2/util/coding/coder.h:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/casts.h257::3423:
:In file included from  /usr/local/clang/include/absl/log/log.h:note: 209expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:  22257:
 | In file included from #/usr/local/clang/include/absl/log/internal/log_message.hd:e47f:
iIn file included from n/usr/local/clang/include/absl/log/internal/structured_proto.he: 27a:
bIn file included from s/usr/local/clang/include/absl/log/internal/proto.hl:_34n:
u/usr/local/clang/include/absl/types/span.hl:l213a:b34l:e  warning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
ull  a213b | l e 
u      s| i                      ^n
g const_pointeIn file included from rs2/s2polyline_measures.cc :=18 :
cIn file included from o../src/s2/s2polyline_measures.hn:s29t:
 In file included from T../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_25n:
uIn file included from l../src/s2/util/coding/coder.hl:a36b:
iIn file included from l../src/s2/base/casts.hi:t36y:
_In file included from u../src/s2/base/logging.hn:k21n:
oIn file included from w/usr/local/clang/include/absl/log/check.hn:;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                                 ^:
21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::289504::341::  note: warning: expanded from macro 'absl_nullability_unknown'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/log/internal/check_op.h289: | 489#:d47e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 abs  l489_ | n u l l a b iclointsyt_ uTn1k&n ovw1n,  _cNounlslt_ uTn2s&p evc2i,f iceodn
s      t|                                   ^c
har* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2polyline_measures.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h18::
41In file included from :
../src/s2/s2polyline_measures.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h29::
26In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/internal/log_message.h28::
47In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/log/internal/structured_proto.h25::
27In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/log/internal/proto.h36::
34In file included from :
../src/s2/base/casts.h:/usr/local/clang/include/absl/types/span.h36::
799In file included from :../src/s2/base/logging.h32::21 :
In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :79921 | :
S/usr/local/clang/include/absl/log/internal/check_op.hp:a505n:<1c:o nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
 T>   M505a | kAeBCSoLn_sLtOSGp_aInN(TTE*R NaAbLs_lC_HnEuClKl_aObPl_eI MbPeLg(iCnh
e      c| k                               ^_
LT/usr/local/clang/include/absl/base/nullability.h,: 257<:)23
:       | note: ^expanded from macro 'absl_nullable'

  /usr/local/clang/include/absl/log/internal/check_op.h257: | 488#:d32e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 ab  s488l | _ n uilnllaibnlee  c_oNnusltleaxbplre 
c      o| n                      ^s
t charIn file included from *s2/s2predicates.cc :In file included from a18s2/s2projections.ccb:
:sIn file included from 18l../src/s2/s2predicates.h:
_:In file included from n57../src/s2/s2projections.hu:
:lIn file included from 27l../src/s2/s1chord_angle.h:
a:In file included from b29../src/s2/r2.hl:
:eIn file included from 22 ../src/s2/s1angle.h:
n:In file included from a28../src/s2/util/math/vector.hm:
:eIn file included from 36#../src/s2/s2point.h:
#:In file included from I25../src/s2/base/logging.hm:
:pIn file included from 21l../src/s2/util/coding/coder.h:
(:In file included from  36/usr/local/clang/include/absl/log/check.h :
: In file included from 37 ../src/s2/base/casts.h:
 :In file included from  34/usr/local/clang/include/absl/log/internal/check_impl.h :
: In file included from 21 /usr/local/clang/include/absl/log/log.h:
 :In file included from  209/usr/local/clang/include/absl/log/internal/check_op.h :
: In file included from 41 /usr/local/clang/include/absl/log/internal/log_impl.h:
 :In file included from  22/usr/local/clang/include/absl/log/internal/strip.h :
: In file included from 26 /usr/local/clang/include/absl/log/internal/log_message.h:
\:In file included from 
47/usr/local/clang/include/absl/log/internal/log_message.h      :
:| In file included from 47                               ^/usr/local/clang/include/absl/log/internal/structured_proto.h:

:In file included from 27/usr/local/clang/include/absl/log/internal/structured_proto.h:
/usr/local/clang/include/absl/base/nullability.h:In file included from :27/usr/local/clang/include/absl/log/internal/proto.h257:
::In file included from 3423/usr/local/clang/include/absl/log/internal/proto.h:
:: /usr/local/clang/include/absl/types/span.h34note: ::
expanded from macro 'absl_nullable'733/usr/local/clang/include/absl/types/span.h
::31801  ::257 32 | :warning: # type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
warning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
i  n733  e | 801 c | ao bn ss lt _e nx up lr l  aS bp la en  < _T N> u  lM la ak be lS ep 
a       n | (                       ^T *
  Ta*b salb_snlu_lnlualbllaebIn file included from  ls2/s2polyline_measures.ccpe: te18rn:
 dIn file included from )A../src/s2/s2polyline_measures.h B:nS29oL:
_eIn file included from Ax../src/s2/s1angle.hTc:TeR28Ip:
BtIn file included from U ../src/s2/s2point.hT{:E
25_      :
L| In file included from I                               ^../src/s2/util/coding/coder.hF
:E36T:
/usr/local/clang/include/absl/base/nullability.hIIn file included from :M../src/s2/base/casts.h257E::_3623B:
:OIn file included from U ../src/s2/base/logging.hN:note: D21expanded from macro 'absl_nullable',:


In file included from       /usr/local/clang/include/absl/log/check.h  | :257                              ^37 | 
#:
dIn file included from e/usr/local/clang/include/absl/base/nullability.hf/usr/local/clang/include/absl/log/internal/check_impl.h:i:n25721e::
 23/usr/local/clang/include/absl/log/internal/check_op.ha::b 505s:note: l1expanded from macro 'absl_nullable'_:n
 uwarning: l  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l257
a | b#/usr/local/clang/include/absl/log/internal/check_op.hld:ee489 f:_i47Nn:ue l note: laexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'ab
bslle_  
n489      u | | l                       ^l 
a b l e  c_oNnusltl aTb1l&e 
v      1| ,                      ^ 
const T2& v2, const char* absl_nonnull exprtext) { In file included from  s2/s2predicates.cc : 18 :
\In file included from 
../src/s2/s2predicates.h      :| 57                                              ^:

In file included from ../src/s2/s1chord_angle.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :../src/s2/s1angle.h22::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
25:
In file included from   ../src/s2/util/coding/coder.h241: | 36#:
dIn file included from e../src/s2/base/casts.hf:i34n:
eIn file included from  /usr/local/clang/include/absl/log/log.ha:b209s:
lIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hn:o22n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hl:l47 :
_In file included from N/usr/local/clang/include/absl/log/internal/structured_proto.ho:n27n:
uIn file included from l/usr/local/clang/include/absl/log/internal/proto.hl:
34      :
| /usr/local/clang/include/absl/types/span.h                     ^:
739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullableIn file included from  s2/s2polyline_measures.cc_:N18u:
lIn file included from l../src/s2/s2polyline_measures.ha:b29l:
eIn file included from 
../src/s2/s1angle.h      :| 28                      ^:

In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from In file included from ../src/s2/base/logging.hs2/s2predicates.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2predicates.h::3757:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1chord_angle.h::2129:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1angle.h::50528::
1In file included from :../src/s2/s2point.h :25warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/util/coding/coder.h
:36:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/base/casts.h497::3432:
:In file included from  /usr/local/clang/include/absl/log/log.h:note: 209expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from   /usr/local/clang/include/absl/log/internal/log_message.h497: | 47 :
 In file included from i/usr/local/clang/include/absl/log/internal/structured_proto.hn:l27i:
nIn file included from e/usr/local/clang/include/absl/log/internal/proto.h :c34o:
n/usr/local/clang/include/absl/types/span.hs:t740e:x21p:r  warning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
ns  t740  | c h a r *   a b s l _ n u l l a b lTe*  naabmsel#_#nIumlplla(b l e   e n d )   n o e x c e p t   { 
\      
|                           ^| 
                               ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h257::25723::23 : note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nullable'

    257257 |  | ##ddeeffiinnee  aabbssll__nnuullllaabbllee  __NNuullllaabbllee

            | |                       ^                      ^

In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2pointutil.cc
:18  :
257In file included from  | ../src/s2/s2pointutil.h#:d25e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from u../src/s2/s2coder.hl:l23a:
bl/usr/local/clang/include/absl/status/status.he: 1031_:N42u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le
      |                       ^ 
1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |  In file included from  s2/s2polyline_measures.cc : 18   :
 In file included from  ../src/s2/s2polyline_measures.h :e29n:
aIn file included from b../src/s2/s1angle.hl:e28_:
iIn file included from f../src/s2/s2point.h(:s25t:
rIn file included from _../src/s2/util/coding/coder.hf:o36r:
mIn file included from a../src/s2/base/casts.ht:_36i:
nIn file included from t../src/s2/base/logging.he:r21n:
aIn file included from l/usr/local/clang/include/absl/log/check.h:::37E:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hu:r21e:
C/usr/local/clang/include/absl/log/internal/check_op.ho:n506s:t1e:x pwarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
form  a506t | )A,B
S      L| _          ^L
OG_INTE/usr/local/clang/include/absl/strings/internal/str_format/parser.hR:N229A:L11_:C Hwarning: E'enable_if' is a clang extension [-Wgcc-compat]C
K_O  P229_ | I M P L ( C h e c k _eGnEa,b l>e=_)i
f      (| s^t
r_/usr/local/clang/include/absl/log/internal/check_op.hf:o488r:m32a:t _note: iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
ter  n488a | l : :iVnalliindeF ocromnasttIemxpplr< Cc.o.n.s>t( fcohramra*t )a,b
s      l| _          ^n
ullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     In file included from cs2/s2polyline.cco:n18s:
tIn file included from  ../src/s2/s2polyline.hc:h33a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from e/usr/local/clang/include/absl/status/status.hx:p67r:
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:t29):
;In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 82                ^:

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22/usr/local/clang/include/absl/crc/crc32c.h:: 32:
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/str_format.h
:115  :24152 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine ab  s115l | _ n o n n u lclo n_sNto nsnturl_lf
o      r| m                     ^a
t_internal::PaIn file included from rs2/s2polyline_measures.ccs:e18d:
FIn file included from o../src/s2/s2polyline_measures.hr:m29a:
tIn file included from B../src/s2/s1angle.ha:s28e:
*In file included from  ../src/s2/s2point.ha:b25s:
lIn file included from _../src/s2/util/coding/coder.hn:o36n:
nIn file included from u../src/s2/base/casts.hl:l36 :
pIn file included from c../src/s2/base/logging.h):
21      :
| In file included from                                                    ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241/usr/local/clang/include/absl/log/internal/check_op.h::22517:: 13note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #d  e517f | icnoen satb sclh_anro*n naublsll __nNuolnlnaubllle
       C| h                     ^e
ckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nIn file included from us2/s2polyline.ccl:l18a:
bIn file included from l../src/s2/s2polyline.he: 33s:
2In file included from ,../src/s2/s1angle.h
:      28| :
                ^In file included from 
../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
257In file included from :../src/s2/s2coder.h23::23 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/status/status.h
:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e82 :
aIn file included from b/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/crc/crc32c.hl:l32a:
b/usr/local/clang/include/absl/strings/str_format.hl:e155 :_36N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble
        155|  |                       ^ 
 explicIn file included from is2/s2polyline_measures.cct: 18F:
oIn file included from r../src/s2/s2polyline_measures.hm:a29t:
CIn file included from o../src/s2/s1angle.hu:n28t:
CIn file included from a../src/s2/s2point.hp:t25u:
rIn file included from e../src/s2/util/coding/coder.h(:i36n:
tIn file included from *../src/s2/base/casts.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from p/usr/local/clang/include/absl/log/internal/check_impl.h): 21::
 /usr/local/clang/include/absl/log/internal/check_op.hp:_518(:p47):  {warning: }type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                                    ^
  518 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naublslla_bnloen nsu1l, lc o_nNsotn ncuhlalr
*       | a                     ^b
In file included from ss2/s2polyline_simplifier.ccl:_18n:
uIn file included from l../src/s2/s2polyline_simplifier.hl:a63b:
lIn file included from e../src/s2/s1chord_angle.h :s292:
,In file included from 
In file included from ../src/s2/s1angle.h      s2/s2polyline.cc:| :                                              ^2818
:
:
In file included from /usr/local/clang/include/absl/base/nullability.hIn file included from ../src/s2/s2point.h:../src/s2/s2polyline.h:257:27:33:
23:
In file included from :In file included from ../src/s2/s2coder.h ../src/s2/s1angle.h::note: 2328expanded from macro 'absl_nullable':
:

In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h  ::2576727 | :
:
#In file included from In file included from d/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2coder.he::f2923i:
n:
In file included from eIn file included from  /usr/local/clang/include/absl/strings/cord.ha/usr/local/clang/include/absl/status/status.h:b:s86l67_:
n:
u/usr/local/clang/include/absl/strings/cord_analysis.hlIn file included from :l/usr/local/clang/include/absl/status/internal/status_internal.ha32b:l:29e47 :
_:In file included from N /usr/local/clang/include/absl/strings/cord.huwarning: :ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]82l
a:
bIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.he   :
3223       | :
s| In file included from                       ^i/usr/local/clang/include/absl/crc/crc32c.hz
:e32_:
t/usr/local/clang/include/absl/strings/str_format.h :G164e:In file included from t8Es2/s2polyline_measures.cc:s: t18warning: i:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]mIn file included from 
a../src/s2/s2polyline_measures.ht:  e29164d:
 | M In file included from e m../src/s2/s1angle.hion:rty28*U:
 saIn file included from ab../src/s2/s2point.hgse:l(_25cn:
ooIn file included from nns../src/s2/util/coding/coder.hnt:u l36Clo:
 rUIn file included from dnR../src/s2/base/casts.hue:spe36*d :
(a)In file included from b s../src/s2/base/logging.h{l: _r21neo:
tnIn file included from un/usr/local/clang/include/absl/log/check.hru:nl 37lp :
_rIn file included from ;e /usr/local/clang/include/absl/log/internal/check_impl.hp}):
;21      
:
|              ^/usr/local/clang/include/absl/log/internal/check_op.h| 
                                              ^:
/usr/local/clang/include/absl/base/nullability.h519::241/usr/local/clang/include/absl/base/nullability.h17:::22241 :: warning: 22note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:expanded from macro 'absl_nonnull'
 
note:     expanded from macro 'absl_nonnull'519241
 |  |    #241d  | e # fcdioennfesit n acehba rs*al ba_bssnllo__nnnonnounnullnlul l _lNe xop_rntNenxoutnln)l;u

l            l| 
|                      ^                ^      

|                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2polyline.cc#:d18e:
fIn file included from i../src/s2/s2polyline.hn:e33 :
aIn file included from In file included from b../src/s2/s1angle.hss2/s2polyline_simplifier.ccl:_:28n18:
o:
nIn file included from In file included from n../src/s2/s2point.hu../src/s2/s2polyline_simplifier.hl:l:27 63_:
:
NIn file included from In file included from o../src/s2/s2coder.h../src/s2/s1chord_angle.hn:n:u23l29:
l:
In file included from 
In file included from /usr/local/clang/include/absl/status/status.h      ../src/s2/s1angle.h:| :67                     ^28:

:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.h::2927:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2coder.h::8223:
:
In file included from In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/status/status.hs2/s2polyline_measures.cc:::236718:
:
:
In file included from In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2polyline_measures.h:::322929:
:
:
/usr/local/clang/include/absl/strings/str_format.hIn file included from In file included from :/usr/local/clang/include/absl/strings/cord.h../src/s2/s1angle.h165:::86288:
:
:/usr/local/clang/include/absl/strings/cord_analysis.hIn file included from  :../src/s2/s2point.hwarning: 50type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
2549:
  :In file included from 165 ../src/s2/util/coding/coder.h | warning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 36
i:
nIn file included from t   ../src/s2/base/casts.h*50 : | as36bi:
szlIn file included from e__../src/s2/base/logging.hnto: n21Gne:
utlIn file included from Mlo/usr/local/clang/include/absl/log/check.h rp:e_P37;r
:
e      cIn file included from | i/usr/local/clang/include/absl/log/internal/check_impl.h       ^s:
e21M:
/usr/local/clang/include/absl/base/nullability.he:m/usr/local/clang/include/absl/log/internal/check_op.h241o::r52022y::U13 s:note: aexpanded from macro 'absl_nonnull' g
warning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  (
241c | o#n  dse520tf  | iCncoeorn dsaRtb escphla*_ nra*ob nsnalbus_ll_nlno u_lnNnlounalbnlul elr lCeh
epc      )k| s;                     ^t

r      c| a                                                ^s
ec/usr/local/clang/include/absl/base/nullability.hm:p241f:a22l:s enote: Iexpanded from macro 'absl_nonnull'm
pl  (241
 |       #| d            ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
on  n257u | l#ld e_fNionnen ualbls
l      _| n                     ^u
llable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.ccIn file included from :s2/s2polyline_measures.cc18::
18In file included from :
../src/s2/s2polyline_simplifier.hIn file included from :../src/s2/s2polyline_measures.h63::
29In file included from :
../src/s2/s1chord_angle.hIn file included from :../src/s2/s1angle.h29::
28In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2point.h28::
25In file included from :
../src/s2/s2point.hIn file included from :../src/s2/util/coding/coder.h27::
36In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/base/casts.h23::
36In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/base/logging.h67::
21In file included from In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hs2/s2polyline.ccIn file included from ::/usr/local/clang/include/absl/log/check.h2918::
:
37In file included from In file included from :
/usr/local/clang/include/absl/strings/cord.h../src/s2/s2polyline.hIn file included from ::/usr/local/clang/include/absl/log/internal/check_impl.h8633::
:
21/usr/local/clang/include/absl/strings/cord_analysis.hIn file included from :
:/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1angle.h56:::5212856::
:17In file included from  :../src/s2/s2point.hwarning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27warning: 
:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h   :5623   | :
s521In file included from i | /usr/local/clang/include/absl/status/status.h z :e 67_ :
ctIn file included from  o/usr/local/clang/include/absl/status/internal/status_internal.hGn:es29tt :
EcIn file included from sh/usr/local/clang/include/absl/strings/cord.hta:ir82m*:
a In file included from at/usr/local/clang/include/absl/crc/internal/crc_cord_state.heb:ds23lF_:
anIn file included from iu/usr/local/clang/include/absl/crc/crc32c.hrl:lSa32bh:
la/usr/local/clang/include/absl/strings/str_format.hre:e 380sM:e143m,: oc owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ny
Ussta  g 380ec | (shcatord*n :asb:sts lt_CroniurlnldagR&bel ep Ss*2t, 
raAb      psp| le                ^_nn
doFn/usr/local/clang/include/absl/base/nullability.honr:umla257lt :(r23set:pd) :;:note: 
sexpanded from macro 'absl_nullable'      t
| r                                                       ^  i
n257g/usr/local/clang/include/absl/base/nullability.h* | : #241ad:be22fs:li n_enote: n expanded from macro 'absl_nonnull'oa
nbn  su241ll | l#_ nddesftiu,n
lel       a| bal                                          ^eb 
_sN/usr/local/clang/include/absl/base/nullability.hlu:_l241nl:oa22bnl:ne 
note: uexpanded from macro 'absl_nonnull'      l
l|                         ^ 241_
 | N#odnenfuilIn file included from nle
 s2/s2polyline_measures.cc      a:| b                     ^18s
l:
_In file included from n../src/s2/s2polyline_measures.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n25u:
lIn file included from l../src/s2/util/coding/coder.h
:      36| :
                     ^In file included from 
../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from s2/s2polyline.cc../src/s2/base/casts.h::1836:
:
In file included from In file included from ../src/s2/s2polyline.h../src/s2/base/logging.h::3321:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/check.h::2837:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_impl.h::2721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2coder.h::52223::
17In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
522In file included from  | /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from c/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/crc/crc32c.hc:h32a:
r/usr/local/clang/include/absl/strings/str_format.h*: 440a:b24s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul  l440  | eixnptr tFePxrti)n;t
F      (| s                ^t
d:/usr/local/clang/include/absl/base/nullability.h::F241I:L22E:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln eo uatbpsult_,n ocnonnusltl  F_oNromnantuSlple
c      <| A                     ^r
gs...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2pointutil.cc:18:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2polygon.cc23::18 :
In file included from note: ../src/s2/s2polygon.hexpanded from macro 'absl_nullable':
34:
In file included from   ../src/s2/mutable_s2shape_index.h257: | 30#:
dIn file included from e/usr/local/clang/include/absl/container/btree_map.hf:i67n:
e /usr/local/clang/include/absl/container/internal/btree_container.ha:b523s:31l:_ nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
labl  e523  | _ N u l l a b l e 
        |                        ^ 
     false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQIn file included from us2/s2pointutil.cca:l18,:
 In file included from M../src/s2/s2pointutil.hQ:u27a:
l../src/s2/util/math/matrix3x3.h,: 276K:V5a:l uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 M../src/s2/base/logging.hV:a37l:u21e:,  note: .expanded from macro 'S2_CHECK_NE'.
.)     37  |  # d\e
f      i| n        ^e
 S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=,/usr/local/clang/include/absl/container/internal/btree_container.h :v522a:l31:,  warning: vpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
l1_t  e522x | t ,  AvBaSlL2_,I NvTaElR2N_AtLe_xXt()i
n      s| e  ^r
t_/usr/local/clang/include/absl/log/internal/check_op.ho:r75_:a61s:s inote: gexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
, i   n75s | e r tA_BoSrL__aLsOsGi_gInN_TiEmRpNlA,L _cCoHnEsCtK (&:,: acbosnls:t: i&m,p
l      i| c  ^i
t_/usr/local/clang/include/absl/container/internal/btree_container.hc:a509s:t52<:c onote: nexpanded from macro 'ABSL_INTERNAL_X's
t c  h509a | r *   a b s l _ n o nAnBuSlLl_>I(N T E R N A\L
_      A| T                                                            ^T
RI/usr/local/clang/include/absl/base/nullability.hB:U241T:E22_:C Anote: Pexpanded from macro 'absl_nonnull'T
UR  E241D | _#BdYe(ftihnies )a)b,s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::551241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

  241   | 551# | d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uXl(li n_sNeorntn_uolrl_
a      s| s                     ^i
gn, insert_or_assign_impl, &In file included from &s2/s2polyline.cc,: 18&:
&In file included from ,../src/s2/s2polyline.h :f33a:
lIn file included from s../src/s2/s1angle.he:,28 :
tIn file included from r../src/s2/s2point.hu:e27):
;In file included from 
../src/s2/s2coder.h      :| 23  ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/container/internal/btree_container.h67::
509In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h52::29 :
In file included from note: /usr/local/clang/include/absl/strings/cord.h:expanded from macro 'ABSL_INTERNAL_X'86
:
/usr/local/clang/include/absl/strings/cord_analysis.h:50  :50949 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        50  | AsBiSzLe__ItN TGEeRtNMAoLr_eAPTrTeRcIiBsUeTMEe_mCoArPyTUUsRaEgDe_(BcYo(ntshti sC)o)r,d R e p *   a b s l _ n o n n u l l   r e p ) ; 
\      
|                                                       ^| 
                                                   ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/common.h241::3222::9 : note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_false' defined here

  241    | 32# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_uflall
s      e| (                     ^i
f_satisfied, ...) _In file included from _s2/s2polyline.ccV:A18_:
AIn file included from R../src/s2/s2polyline.hG:S33_:
_In file included from 
../src/s2/s1angle.h      :| 28        ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86In file included from :
s2/s2polygon.cc/usr/local/clang/include/absl/strings/cord_analysis.h::1856:
:In file included from 56../src/s2/s2polygon.h:: 34:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h   :5667 | :
s/usr/local/clang/include/absl/container/internal/btree_container.hi:z551e:_3t:  Gwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
Esti  m551a | t e dAFBaSiLr_SIhNaTrEeRMNeAmLo_rXy(Uisnasgeer(tc_oonrs_ta sCsoirgdnR,e pi*n saebrstl__onro_nansuslilg nr_eipm)p;l
,       | &                                                       ^&
, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22f:a lnote: sexpanded from macro 'absl_nonnull'e
,   t241r | u#ed)e;f
i      n| e  ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l511_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N511o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2polyline_simplifier.cc::50918::
47In file included from :../src/s2/s2polyline_simplifier.h :63note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s1chord_angle.h:29:
In file included from   ../src/s2/s1angle.h509: | 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23A:
BIn file included from S/usr/local/clang/include/absl/status/status.hL:_67I:
NIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hE:R29N:
AIn file included from L/usr/local/clang/include/absl/strings/cord.h_:A94T:
TIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hI:B31U:
TE/usr/local/clang/include/absl/synchronization/mutex.h_:C489A:P14T:U Rwarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]D
_BY(  t489h | i s ) ) ,    v o i d   ( * a b s l _ n u l l a b l e   i n\v
a      r| i                                              ^~~~a
nt)(voi/usr/local/clang/include/absl/container/internal/btree_container.hd:*553 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l511a:b52i:l inote: texpanded from macro 'ABSL_INTERNAL_X'y
_un  k511n | o w n ) , 
        |               ^ 
 ABS/usr/local/clang/include/absl/base/nullability.hL:_257I:N23T:E Rnote: Nexpanded from macro 'absl_nullable'A
L_  A257T | T#RdIeBfUiTnEe_ CaAbPsTlU_RnEuDl_lBaYb(lteh i_sN)u)l)l a b l e 
        |                        ^ 
       In file included from  s2/s2polyline_simplifier.cc : 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h : 63\:

In file included from       ../src/s2/s1chord_angle.h| :                                                   ^29
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/common.h::2831:
:In file included from 9../src/s2/s2point.h:: 27:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/s2coder.h
:23:
In file included from    /usr/local/clang/include/absl/status/status.h31: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.hA:B94S:
LIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hI:N31T:
E/usr/local/clang/include/absl/synchronization/mutex.hR:N489:A45L:_ Iwarning: Ftype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
tru  e489( | i f _ s a t ivsofiide d(,* a.b.s.l)_ niufl_lsaabtlies fiinevda
r      i| a        ^n
t)(void* absIn file included from ls2/s2polygon.cc_:n18u:
lIn file included from l../src/s2/s2polygon.ha:b34i:
lIn file included from i../src/s2/mutable_s2shape_index.ht:y30_:
uIn file included from n/usr/local/clang/include/absl/container/btree_map.hk:n67o:
w/usr/local/clang/include/absl/container/internal/btree_container.hn:)553,:
3      :|                                              ^
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/base/nullability.h
:289:34:   note: 553expanded from macro 'absl_nullability_unknown' | 
    A289B | S#Ld_eIfNiTnEeR NaAbLs_lX_(niunlslearbti_loirt_ya_susnikgnno,w ni n_sNeurltl__ourn_sapsesciigfni_eidm
p      l| ,                                 ^ 
&&, &&, true, truIn file included from es2/s2polyline_simplifier.cc):;18
:
      In file included from | ../src/s2/s2polyline_simplifier.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
63:
In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/container/internal/btree_container.h::29511:
:In file included from 47../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h  :51123 | :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L94_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hT:E31R:
N/usr/local/clang/include/absl/synchronization/mutex.hA:L490_:A13T:T Rwarning: Itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]B
UTE  _490C | A P T U R E Dv_oBiYd(*t haibss)l)_)n u l l a b i l i t y _ u n k n o w n   a r g ) ;\

            | |             ^                                              ^~~~

/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(inseIn file included from rs2/s2polyline_simplifier.cct:_18o:
rIn file included from _../src/s2/s2polyline_simplifier.ha:s63s:
iIn file included from g../src/s2/s1chord_angle.hn:,29 :
iIn file included from n../src/s2/s1angle.hs:e28r:
tIn file included from _../src/s2/s2point.ho:r27_:
aIn file included from s../src/s2/s2coder.hs:i23g:
nIn file included from _/usr/local/clang/include/absl/status/status.hh:i67n:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hi:m29p:
lIn file included from ,/usr/local/clang/include/absl/strings/cord.h :c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht: 31&:
,/usr/local/clang/include/absl/synchronization/mutex.h
:      549| :  ^40
: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]509
:52:   note: 549expanded from macro 'ABSL_INTERNAL_X' | 
  s  t509a | t i c   v o i d   I nAcBrSeLm_eInNtTSEyRnNcAhLS_eAmT(TMRuItBeUxT*E _aCbAsPlT_UnRoEnDn_uBlYl( tmhui,s
)      )| ,                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n32u:l9l:  _note: Nmacro 'ABSL_INTERNAL_IF_false' defined hereo
nnu   l32l | 
#      d| e                     ^f
ine ABSL_INTEIn file included from Rs2/s2polyline_simplifier.ccN:A18L:
_In file included from I../src/s2/s2polyline_simplifier.hF:_63f:
aIn file included from l../src/s2/s1chord_angle.hs:e29(:
iIn file included from f../src/s2/s1angle.h_:s28a:
tIn file included from i../src/s2/s2point.hs:f27i:
eIn file included from d../src/s2/s2coder.h,: 23.:
.In file included from ./usr/local/clang/include/absl/status/status.h): 67_:
_In file included from V/usr/local/clang/include/absl/status/internal/status_internal.hA:_29A:
RIn file included from G/usr/local/clang/include/absl/strings/cord.hS:_94_:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :        ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |    In file included from  s2/s2polygon.cc : 18 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 555 : 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
bas  e555_ | i n tAeBrSnLa_lI:N:TPEeRrNTAhLr_eXa(diSnysnecrht*_ oarb_sals_sniognnn,u liln swe)r;t
_      o| r                                                               ^_
as/usr/local/clang/include/absl/base/nullability.hs:i241g:n22_:h inote: nexpanded from macro 'absl_nonnull't
_i  m241p | l#,d ecfoinnset  a&b,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l: 52_:N onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull  
511       | |                       ^ 
        ABSL_INTERNAIn file included from Ls2/s2polyline_simplifier.cc_:A18T:
TIn file included from R../src/s2/s2polyline_simplifier.hI:B63U:
TIn file included from E../src/s2/s1chord_angle.h_:C29A:
PIn file included from T../src/s2/s1angle.hU:R28E:
DIn file included from _../src/s2/s2point.hB:Y27(:
tIn file included from h../src/s2/s2coder.hi:s23):
)In file included from )/usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 551 : 40 :\ 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                                   ^
  /usr/local/clang/include/absl/container/internal/common.h551: | 32 : 9s:t anote: tmacro 'ABSL_INTERNAL_IF_false' defined herei
c b   o32o | l# dDeefcirneem eAnBtSSLy_nIcNhTSEeRmN(AMLu_tIeFx_*f aalbssel(_info_nsnautlils fmiue,d
,       | .                                       ^.
.)/usr/local/clang/include/absl/base/nullability.h :_241_:V22A:_ Anote: Rexpanded from macro 'absl_nonnull'G
S_  _241
 |       #| d        ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2polygon.cc241: | 18#:
dIn file included from e../src/s2/s2polygon.hf:i34n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l558l: 3_:N owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ull
        558|  |                      ^ 
 ABSL_INTERNAL_X(inserIn file included from ts2/s2polyline_simplifier.cc_:o18r:
_In file included from a../src/s2/s2polyline_simplifier.hs:s63i:
gIn file included from n../src/s2/s1chord_angle.h,: 29i:
nIn file included from s../src/s2/s1angle.he:r28t:
_In file included from o../src/s2/s2point.hr:_27a:
sIn file included from s../src/s2/s2coder.hi:g23n:
_In file included from h/usr/local/clang/include/absl/status/status.hi:n67t:
_In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
,In file included from  /usr/local/clang/include/absl/strings/cord.hc:o94n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h :&31,:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 556  ^:
38: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]509
:52:   note: 556expanded from macro 'ABSL_INTERNAL_X' | 
  v  o509i | d   L o c k S l o w LAoBoSpL(_SIyNnTcEhRWNaAiLt_PAaTrTaRmIsB*U TaEb_sClA_PnToUnRnEuDl_lB Yw(atihtips,) )i,n t   f l a g s ) ; 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

        | 241                                                   ^ | 
#def/usr/local/clang/include/absl/container/internal/common.hi:n32e: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNAL_IF_false(if_sIn file included from s2/s2polyline_simplifier.cca:t18i:
sIn file included from f../src/s2/s2polyline_simplifier.hi:e63d:
,In file included from  ../src/s2/s1chord_angle.h.:.29.:
)In file included from  ../src/s2/s1angle.h_:_28V:
AIn file included from _../src/s2/s2point.hA:R27G:
SIn file included from _../src/s2/s2coder.h_:
23      :
| In file included from         ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2polygon.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1831:
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/synchronization/mutex.h::34558:
:In file included from 35../src/s2/mutable_s2shape_index.h:: 30:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/btree_container.h  :558558 | : 3 :b owarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
 Lo  c558k | S l oAwBWSiLt_hIDNeTaEdRlNiAnLe_(XM(uiHnoswe ratb_solr__naosnsniuglnl,  hionws,e
r      t| _                                  ^o
r_/usr/local/clang/include/absl/base/nullability.ha:s241s:i22g:n _note: hexpanded from macro 'absl_nonnull'i
nt  _241i | m#pdle,f icnoen satb s&l,_
n      o| n  ^n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl: 511_:N52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l
      |                        ^511
 |           In file included from As2/s2polyline_simplifier.ccB:S18L:
_In file included from I../src/s2/s2polyline_simplifier.hN:T63E:
RIn file included from N../src/s2/s1chord_angle.hA:L29_:
AIn file included from T../src/s2/s1angle.hT:R28I:
BIn file included from U../src/s2/s2point.hT:E27_:
CIn file included from A../src/s2/s2coder.hP:T23U:
RIn file included from E/usr/local/clang/include/absl/status/status.hD:_67B:
YIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.ht:h29i:
sIn file included from )/usr/local/clang/include/absl/strings/cord.h):)94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 559 : 46 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      559  |       \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h : 31 : 9 :   note:  macro 'ABSL_INTERNAL_IF_true' defined here 
       31  |  # d e fcionnes tA BCSoLn_dIiNtTiEoRnN*A La_bIsFl__tnruulel(aibfl_es actoinsdf,i
e      d| ,                                             ^ 
../usr/local/clang/include/absl/base/nullability.h.:)257 :i23f:_ snote: aexpanded from macro 'absl_nullable't
is  f257i | e#dd
e      f| i        ^n
e absl_nullabIn file included from ls2/s2polygon.cce: 18_:
NIn file included from u../src/s2/s2polygon.hl:l34a:
bIn file included from l../src/s2/mutable_s2shape_index.he:
30      :
| In file included from                       ^/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 | In file included from  s2/s2polyline_simplifier.cc :A18B:
SIn file included from L../src/s2/s2polyline_simplifier.h_:I63N:
TIn file included from E../src/s2/s1chord_angle.hR:N29A:
LIn file included from _../src/s2/s1angle.hX:(28i:
nIn file included from s../src/s2/s2point.he:r27t:
_In file included from o../src/s2/s2coder.hr:_23a:
sIn file included from s/usr/local/clang/include/absl/status/status.hi:g67n:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hi:n29s:
eIn file included from r/usr/local/clang/include/absl/strings/cord.ht:_94o:
rIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.ha:s31s:
i/usr/local/clang/include/absl/synchronization/mutex.hg:n562_:h23i:n twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
mpl,   562c | o n svto i&d, 
L      o| c  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~k
Sl  o559w | ( M u H o w   a b s l _ n o n n u l lc ohnoswt,  &c,o nfsatl sCeo,n dtirtuieo,n
*       | a                  ~~~~~~~~~~~~~~~~~~~~~b
sl_  n560u | l l a b l e   c o n d , 
        |                        ^ 
  /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:_ inote: texpanded from macro 'absl_nonnull'e
ra  t241o | r#(dheifnitn)e  AaBbSsLl__InNoTnEnRuNlAlL __CNOoMnMnAu)l;l

            | |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~                     ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'In file included from 
s2/s2polyline_simplifier.cc:18:
In file included from   ../src/s2/s2polyline_simplifier.h511: | 63 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:A67T:
TIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hI:B29U:
TIn file included from E/usr/local/clang/include/absl/strings/cord.h_:C94A:
PIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hU:R31E:
D/usr/local/clang/include/absl/synchronization/mutex.h_:B562Y:(58t:h iwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
))    562  |      v o i d   L o c k S l o w ( M u H o w\ 
a      b| s                                              ^~~~l
_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUT/usr/local/clang/include/absl/container/internal/btree_container.hE:_561C:O3L:D ;warning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                                   ^
/usr/local/clang/include/absl/base/nullability.h  :561257 | : 23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nXe( ianbsselr_tn_uolrl_aabslsei g_nN,u lilnasbelret
_      o| r                      ^_
assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBIn file included from Us2/s2polyline_simplifier.ccT:E18_:
CIn file included from A../src/s2/s2polyline_simplifier.hP:T63U:
RIn file included from E../src/s2/s1chord_angle.hD:_29B:
YIn file included from (../src/s2/s1angle.ht:h28i:
sIn file included from )../src/s2/s2point.h):,27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :\31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                                                   ^:
576:49:/usr/local/clang/include/absl/container/internal/common.h :31warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]9
: note: macro 'ABSL_INTERNAL_IF_true' defined here  
576 |      31v | o#idde fTirnyeR eAmBoSvLe_(IbNaTsEeR_NiAnLt_eIrFn_atlr:u:eP(eirfT_hsraetaidsSfyinecdh,*  .a.b.s)l _info_nsnautlils fsi)e;d

            | |                                                 ^        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2polygon.cce:f18i:
nIn file included from e../src/s2/s2polygon.h :a34b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:
 /usr/local/clang/include/absl/container/internal/btree_container.h_:N561o:n3n:u lwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                      ^
  561 |   ABSL_INTERNAL_XIn file included from (s2/s2polyline_simplifier.cci:n18s:
eIn file included from r../src/s2/s2polyline_simplifier.ht:_63o:
rIn file included from _../src/s2/s1chord_angle.ha:s29s:
iIn file included from g../src/s2/s1angle.hn:,28 :
iIn file included from n../src/s2/s2point.hs:e27r:
tIn file included from _../src/s2/s2coder.ho:r23_:
aIn file included from s/usr/local/clang/include/absl/status/status.hs:i67g:
nIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hh:i29n:
tIn file included from _/usr/local/clang/include/absl/strings/cord.hi:m94p:
lIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t578 :&45,:
       | warning:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  562 |    578  |      v o i d   B l o c k ( b a sceo_nisntt e&r,n atlr:u:eP,e rfTahlrseea,d
S      y| n                  ~~~~~~~~~~~~~~~~~~~~~c
h*   a563b | s l _ n o n n u l l   s ) ; 
        |                                              ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t:_22i:t enote: rexpanded from macro 'absl_nonnull'a
to  r241( | h#idnetf)i nAeB SaLb_sIlN_TnEoRnNnAuLl_lC O_MNMoAn)n;u
l      l| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |    In file included from  s2/s2polyline_simplifier.cc : 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h :A63B:
SIn file included from L../src/s2/s1chord_angle.h_:I29N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hA:T27T:
RIn file included from I../src/s2/s2coder.hB:U23T:
EIn file included from _/usr/local/clang/include/absl/status/status.hC:A67P:
TIn file included from U/usr/local/clang/include/absl/status/internal/status_internal.hR:E29D:
_In file included from B/usr/local/clang/include/absl/strings/cord.hY:(94t:
hIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hs:)31):
,/usr/local/clang/include/absl/synchronization/mutex.h : 580 : 34 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      580  |      b a s  e _ i n\t
e      r| n                                              ^~~~a
l::PerT/usr/local/clang/include/absl/container/internal/btree_container.hh:r561e:a3d:S ywarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __hV*A _aAbRsGlS__n_u
l      l| a        ^b
le Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/s2polyline_simplifier.cc564: | 18 :
 In file included from A../src/s2/s2polyline_simplifier.hB:S63L:
_In file included from I../src/s2/s1chord_angle.hN:T29E:
RIn file included from N../src/s2/s1angle.hA:L28_:
XIn file included from (../src/s2/s2point.hi:n27s:
eIn file included from r../src/s2/s2coder.ht:_23o:
rIn file included from _/usr/local/clang/include/absl/status/status.ha:s67s:
iIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.hn:,29 :
iIn file included from n/usr/local/clang/include/absl/strings/cord.hs:e94r:
tIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31_:
a/usr/local/clang/include/absl/synchronization/mutex.hs:s585i:g20n:_ hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
t_im  p585l | ,   cvoonisdt  T&r,a
n      s| (  ^M
uH/usr/local/clang/include/absl/container/internal/btree_container.ho:w509 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onn  u509l | l   h o w ) ;     / /A BuSsLe_dI NfToErR NCAoLn_dAVTaTrR-I>BMUuTtEe_xC AtPrTaUnRsEfDe_rB
Y      (| t                   ^h
is/usr/local/clang/include/absl/base/nullability.h):)241,: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u                                                   ^l
l /usr/local/clang/include/absl/container/internal/common.h_:N31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here

      |                      ^   
31 | #define ABSL_INTERNAIn file included from Ls2/s2polyline_simplifier.cc_:I18F:
_In file included from t../src/s2/s2polyline_simplifier.hr:u63:
eIn file included from (../src/s2/s1chord_angle.hi:f29_:
sIn file included from a../src/s2/s1angle.ht:i28s:
fIn file included from i../src/s2/s2point.he:d27,:
 In file included from .../src/s2/s2coder.h.:.23):
 In file included from i/usr/local/clang/include/absl/status/status.hf:_67s:
aIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hi:s29f:
iIn file included from e/usr/local/clang/include/absl/strings/cord.hd:
94      :
| In file included from         ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586In file included from  | s2/s2polygon.cc : 18v:
oIn file included from i../src/s2/s2polygon.hd: 34F:
eIn file included from r../src/s2/mutable_s2shape_index.h(:b30a:
sIn file included from e/usr/local/clang/include/absl/container/btree_map.h_:i67n:
t/usr/local/clang/include/absl/container/internal/btree_container.he:r564n:a3l:: :warning: P'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
rThre  a564d | S y nAcBhS*L _aIbNsTlE_RnNoAnLn_uXl(li
n      s| e                                          ^r
t_/usr/local/clang/include/absl/base/nullability.ho:r241_:a22s:s inote: gexpanded from macro 'absl_nonnull'n
,   i241n | s#edretf_ionre_ aasbssilg_nn_ohninnutl_li m_pNlo,n ncuolnls
t       | &                     ^,

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |            In file included from  s2/s2polyline_simplifier.cc : 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h :c63o:
nIn file included from s../src/s2/s1chord_angle.ht: 29&:
,In file included from  ../src/s2/s1angle.ht:r28u:
eIn file included from ,../src/s2/s2point.h :t27r:
uIn file included from e../src/s2/s2coder.h,:
23      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/status/status.h
:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h566: | 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 590 : 40 :  cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
st_  i590t | e r aetxoprl(ihciintt )M uAtBeSxL(_cIoNnTsEtR NvAoLl_aCtOiMlMeA )M;u
t      e| x                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
 ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n47u:l lnote: aexpanded from macro 'ABSL_INTERNAL_X'b
le /  *509i | g n o r e d * / )   {A}B
S      L| _                                       ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R257N:A23L:_ Anote: Texpanded from macro 'absl_nullable'T
RI  B257U | T#Ed_eCfAiPnTeU RaEbDs_lB_Yn(utlhliasb)l)e,  _ N u l l a b l e 
        |                        ^ 
          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]568
:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
624 |     e568x | p l iAcBiStL _MIuNtTeExRLNoAcLk_(XM(uitnesxe&r tm_uo rA_BaSsLs_iIgNnT,E RiNnAsLe_rAtT_ToRrI_BaUsTsEi_gCnA_PhTiUnRtE_Di_mBpYl(,t hciosn)s)t
       &| ,                                                                   ^~~~ 
&&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL/usr/local/clang/include/absl/synchronization/mutex.h_:A635T:T29R:I Bwarning: Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
E_CA  P635T | U R EeDx_pBlYi(ctihti sM)u)t,e x L o c k ( M u t e x *   a b s l _ n o n n u l\l
       m| u                                                   ^)
 A/usr/local/clang/include/absl/container/internal/common.hB:S32L:_9E:X Cnote: Lmacro 'ABSL_INTERNAL_IF_false' defined hereU
SIV   E32_ | L#OdCeKf_iFnUeN CATBISOLN_(ImNuT)E
R      N| A                            ^L
_I/usr/local/clang/include/absl/base/nullability.hF:_241f:a22l:s enote: (expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende,  a.b.s.l)_ n_o_nVnAu_lAlR G_SN_o_n
n      u| l        ^l

      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_In file included from Is2/s2polyline_simplifier.ccN:T18E:
RIn file included from N../src/s2/s2polyline_simplifier.hA:L63_:
XIn file included from (../src/s2/s1chord_angle.hi:n29s:
eIn file included from r../src/s2/s1angle.ht:_28o:
rIn file included from _../src/s2/s2point.ha:s27s:
iIn file included from g../src/s2/s2coder.hn:,23 :
iIn file included from n/usr/local/clang/include/absl/status/status.hs:e67r:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ho:r29_:
aIn file included from s/usr/local/clang/include/absl/strings/cord.hs:i94g:
nIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hh:i31n:
t/usr/local/clang/include/absl/synchronization/mutex.h_:i641m:p68l:,  warning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nst &  ,641  | & & ,e
x      p| l  ^i
ci/usr/local/clang/include/absl/container/internal/btree_container.ht: 511M:u52t:e xnote: Lexpanded from macro 'ABSL_INTERNAL_X'o
ck(  M511u | t e x &   m u   A B SALB_SILN_TIENRTNEARLN_AALT_TARTITBRUITBEU_TCEA_PCTAUPRTEUDR_EBDY_(BtYh(itsh)i,s
)      )| )                                                                   ^~~~ 
                       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
/usr/local/clang/include/absl/synchronization/mutex.h   :32649 | :#29d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e A  B649S | L _ IeNxTpElRiNcAiLt_ IMFu_tfeaxlLsoec(ki(fM_ustaetxi*s faibesdl,_ n.o.n.n)u l_l_ VmAu_,A RcGoSn_s_t
       C| o        ^n
dition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAIn file included from Ps2/s2polyline_simplifier.ccT:U18R:
EIn file included from D../src/s2/s2polyline_simplifier.h_:B63Y:
(In file included from t../src/s2/s1chord_angle.hh:i29s:
)In file included from )../src/s2/s1angle.h,: 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h\:
94      :
| In file included from                                                    ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/container/internal/common.h:/usr/local/clang/include/absl/synchronization/mutex.h32::6709::74 : note: warning: macro 'ABSL_INTERNAL_IF_false' defined here'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

   32 | #  d670e | f i neex pAlBiScLi_tI NRTeEaRdNeArLM_uItFe_xfLaolcske((Miuft_esxa&t imsuf iAeBdS,L _.I.N.T)E R_N_AVLA__AATRTGRSI_B_U
T      E| _        ^C
APTURED_BYIn file included from (s2/s2polygon.cct:h18i:
sIn file included from )../src/s2/s2polygon.h):
34      :
| In file included from                                                                          ^~~~../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X/usr/local/clang/include/absl/synchronization/mutex.h(:i678n:s35e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_as  s678i | g n ,e xipnlsiecritt_ oRre_aadsesriMgunt_ehxiLnotc_ki(mMpult,e xc*o nasbts l&_,n o&n&n,u
l      l|    ^m
u)/usr/local/clang/include/absl/container/internal/btree_container.h :A511B:S52L:_ Snote: Hexpanded from macro 'ABSL_INTERNAL_X'A
RED  _511L | O C K _ F U N C T I OANB(SmLu_)I
N      T| E                                  ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_  C241A | P#TdUeRfEiDn_eB Ya(btshli_sn)o)n)n u l l   _ N o n n u l l 
        |                       ^ 
       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_In file included from Is2/s2polyline_simplifier.ccN:T18E:
RIn file included from N../src/s2/s2polyline_simplifier.hA:L63_:
IIn file included from F../src/s2/s1chord_angle.h_:t29r:
uIn file included from e../src/s2/s1angle.h(:i28f:
_In file included from s../src/s2/s2point.ha:t27i:
sIn file included from f../src/s2/s2coder.hi:e23d:
,In file included from  /usr/local/clang/include/absl/status/status.h.:.67.:
)In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hi:f29_:
sIn file included from a/usr/local/clang/include/absl/strings/cord.ht:i94s:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.he:d31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h        ^:
681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681In file included from  | s2/s2polygon.cc : 18e:
xIn file included from p../src/s2/s2polygon.hl:i34c:
iIn file included from t../src/s2/mutable_s2shape_index.h :R30e:
aIn file included from d/usr/local/clang/include/absl/container/btree_map.he:r67M:
u/usr/local/clang/include/absl/container/internal/btree_container.ht:e570x:L3o:c kwarning: ('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]M
utex&   570m | u   AABBSSLL__IINNTTEERRNNAALL__AXT(TiRnIsBeUrTtE__oCrA_PaTsUsRiEgDn_,B Yi(ntsheirst)_,o
r      _| a                                                                         ^~~~s
sign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 | /usr/local/clang/include/absl/synchronization/mutex.h : 689 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       689  |      efxapllsiec,i tt rRueea,d ecroMnustte_xiLtoecrka(tMourt(ehxi*n ta)b sAlB_SnLo_nInNuTlElR NmAuL,_ CcOoMnMsAt) ;C
o      n| d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
tio/usr/local/clang/include/absl/container/internal/btree_container.hn:&511 :c47o:n dnote: )expanded from macro 'ABSL_INTERNAL_X'

      |                                   ^
  511 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his)))                        \
      |                                               ^~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2polyline_simplifier.cc::57218::
3In file included from :../src/s2/s2polyline_simplifier.h :63warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s1chord_angle.h:29:
In file included from   ../src/s2/s1angle.h572: | 28 :
 In file included from A../src/s2/s2point.hB:S27L:
_In file included from I../src/s2/s2coder.hN:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.hA:L67_:
XIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hi:n29s:
eIn file included from r/usr/local/clang/include/absl/strings/cord.ht:_94o:
rIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.ha:s31s:
i/usr/local/clang/include/absl/synchronization/mutex.hg:n710,: 74i:n swarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
t_or_a  s710s | i g ne_xhpilnitc_iitm pWlr,i tceornMsutt e&x,L o&c&k,(
M      u| t  ^e
x&/usr/local/clang/include/absl/container/internal/btree_container.h :m509u: 52A:B Snote: Lexpanded from macro 'ABSL_INTERNAL_X'_
INT  E509R | N A L _ A T T R I B UATBES_LC_AIPNTTUERRENDA_LB_YA(TtThRiIsB)U)T
E      _| C                                                                         ^~~~A
PTURED_BY(this)),                  /usr/local/clang/include/absl/synchronization/mutex.h : 718 : 35 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                                    ^
  718 | /usr/local/clang/include/absl/container/internal/common.h : 31e:x9p:l inote: cmacro 'ABSL_INTERNAL_IF_true' defined herei
t W   r31i | t#define ABSL_IeNrTMEuRtNeAxLL_oIcFk_(tMruutee(xi*f _asbastli_snfoinendu,l l. .m.u)) 
i      f| _                                  ^s
ati/usr/local/clang/include/absl/base/nullability.hs:f241i:e22d:
       | note:         ^expanded from macro 'absl_nonnull'

  241 | #define abIn file included from ss2/s2polygon.ccl:_18n:
oIn file included from n../src/s2/s2polygon.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.h_:N30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 572                     ^:
3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_orIn file included from _s2/s2polyline_simplifier.cca:s18s:
iIn file included from g../src/s2/s2polyline_simplifier.hn:,63 :
iIn file included from n../src/s2/s1chord_angle.hs:e29r:
tIn file included from _../src/s2/s1angle.ho:r28_:
aIn file included from s../src/s2/s2point.hs:i27g:
nIn file included from _../src/s2/s2coder.hh:i23n:
tIn file included from _/usr/local/clang/include/absl/status/status.hi:m67p:
lIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht: 94&:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h&:&31,:

      /usr/local/clang/include/absl/synchronization/mutex.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~722
:74:  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(in sewarning: rt'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
or_ass  i722g | n ,  eixnpsleircti_to rW_raistseirgMnu_theixnLto_cikm(pMlu,t ecxo&n smtu  &A,B S&L&_,I
N      T| E  ^R
NA/usr/local/clang/include/absl/container/internal/btree_container.hL:_509A:T52T:R Inote: Bexpanded from macro 'ABSL_INTERNAL_X'U
TE_  C509A | P T U R E D _ B Y ( tAhBiSsL)_,I
N      T| E                                                                         ^~~~R
NAL_ATTRIBUTE_CAPTURED_BY(this)),                /usr/local/clang/include/absl/synchronization/mutex.h : 731 : 35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                                                    ^
  731 | /usr/local/clang/include/absl/container/internal/common.h : 31e:x9p:l inote: cmacro 'ABSL_INTERNAL_IF_true' defined herei
t W   r31i | t#edreMfuitneex LAoBcSkL(_MIuNtTeExR*N AaLb_sIlF__ntornuneu(lilf _msua,t icsofnisetd ,C o.n.d.i)t iiofn_&s actoinsdf)i
e      d| 
                                  ^      
|         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2polygon.cci:n18e:
 In file included from a../src/s2/s2polygon.hb:s34l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 67_:
N/usr/local/clang/include/absl/container/internal/btree_container.ho:n574n:u3l:l 
      warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]                     ^

  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2polyline_simplifier.cc::57418::
3In file included from :../src/s2/s2polyline_simplifier.h :63warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s1chord_angle.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
511In file included from :../src/s2/s1angle.h52::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'ABSL_INTERNAL_X':
27:
In file included from ../src/s2/s2coder.h:  23511:
 | In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A801L:_20A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUTE  _801C | A P TCUoRnEdDi_tBiYo(nt(hbioso)l) )( * a b s l _ n o n n u l l   f u n c ) ( v o i d\*
       a| b                                                   ^s
l_/usr/local/clang/include/absl/container/internal/common.hn:u31l:l9a:b inote: lmacro 'ABSL_INTERNAL_IF_true' defined herei
ty_   u31n | k#ndoewfni)n,e
       A| B                   ^S
L_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'I
F_  t241r | u#ed(eiffi_nsea taibssfli_endo,n n.u.l.l)  _iNfo_nsnautlils
f      i| e                     ^d

      |         ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.hIn file included from :s2/s2polygon.cc29::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2polygon.h28::
34In file included from :
../src/s2/s2point.hIn file included from :../src/s2/mutable_s2shape_index.h27::
30In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h23::
67In file included from :
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/container/internal/btree_container.h67::
574In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h3::29 :
In file included from warning: /usr/local/clang/include/absl/strings/cord.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h574: | 801 : 45A:B Swarning: Ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
INT  E801R | N A LC_oXn(diintsieornt(_booro_la s(s*iagbns,l _innosnenrutl_lo rf_uanscs)i(gvno_ihdi*n ta_bismlp_ln,u lcloanbsitl i&t,y _&u&n,k
n      o| w  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
),
        575|  |                                             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # dterfuien,e  tarbusel,_ ncuolnlsatb_iiltietrya_tuonrk(nhoiwnnt )_ NAuBlSlL__uInNsTpEeRcNiAfLi_eCdO
M      M| A                                 ^)
;
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'In file included from 
s2/s2polyline_simplifier.cc:18:
In file included from   ../src/s2/s2polyline_simplifier.h511: | 63 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:A67T:
TIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hI:B29U:
TIn file included from E/usr/local/clang/include/absl/strings/cord.h_:C94A:
PIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hU:R31E:
D/usr/local/clang/include/absl/synchronization/mutex.h_:B802Y:(19t:h iwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension])
))    802  |                          v o i d *   a b s\l
_      n| u                                              ^~~~l
lability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_non/usr/local/clang/include/absl/container/internal/btree_container.hn:u577l:l3 :_ Nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null  
577       | |                       ^ 
ABSL_INIn file included from Ts2/s2polyline_simplifier.ccE:R18N:
AIn file included from L../src/s2/s2polyline_simplifier.h_:X63(:
iIn file included from n../src/s2/s1chord_angle.hs:e29r:
tIn file included from _../src/s2/s1angle.ho:r28_:
aIn file included from s../src/s2/s2point.hs:i27g:
nIn file included from ,../src/s2/s2coder.h :i23n:
sIn file included from e/usr/local/clang/include/absl/status/status.hr:t67_:
oIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h_:a29s:
sIn file included from i/usr/local/clang/include/absl/strings/cord.hg:n94_:
hIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:t31_:
i/usr/local/clang/include/absl/synchronization/mutex.hm:p814l:,42 :& &warning: ,type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
con  s814t |   & ,C
o      n| d  ^i
ti/usr/local/clang/include/absl/container/internal/btree_container.ho:n509(:b52o:o lnote:  expanded from macro 'ABSL_INTERNAL_X'(
*ab  s509l | _ n o n n u l l   f uAnBcS)L(_TI*N TaEbRsNlA_Ln_uAlTlTaRbIiBlUiTtEy__CuAnPkTnUoRwEnD)_,B
Y      (| t                                         ^h
is/usr/local/clang/include/absl/base/nullability.h):)289,: 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # d e f i n e   a b s l _ n\u
l      l| a                                                   ^b
ili/usr/local/clang/include/absl/container/internal/common.ht:y32_:u9n:k nnote: omacro 'ABSL_INTERNAL_IF_false' defined herew
n _   N32u | l#ld_eufnisnpee cAiBfSiLe_dI
N      T| E                                 ^R
NAL_IF_false(iIn file included from fs2/s2polyline_simplifier.cc_:s18a:
tIn file included from i../src/s2/s2polyline_simplifier.hs:f63i:
eIn file included from d../src/s2/s1chord_angle.h,: 29.:
.In file included from .../src/s2/s1angle.h): 28_:
_In file included from V../src/s2/s2point.hA:_27A:
RIn file included from G../src/s2/s2coder.hS:_23_:

In file included from       /usr/local/clang/include/absl/status/status.h| :        ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2polygon.cc::3118:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2polygon.h815::3416:
:In file included from  ../src/s2/mutable_s2shape_index.h:warning: 30type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:In file included from   67s2/s2predicates.cc815:
: | /usr/local/clang/include/absl/container/internal/btree_container.h 18: :
577 In file included from : ../src/s2/s2predicates.h3 :: 57  :
warning:  In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] ../src/s2/s1chord_angle.h
 : 29   :
T577*In file included from  |   ../src/s2/s1angle.ha :bAs28Bl:
S_LIn file included from n_../src/s2/s2point.huIl:NlT25aEbR:
NiAIn file included from lLi../src/s2/util/coding/coder.h_t:Xy(36_i:
unnIn file included from ske../src/s2/base/casts.hnro:tw_34no :
ra_In file included from ra/usr/local/clang/include/absl/log/log.hgs):s;i209
g:
      nIn file included from | ,               ^/usr/local/clang/include/absl/log/internal/log_impl.h 
i:/usr/local/clang/include/absl/base/nullability.hn22:s:
289eIn file included from :r/usr/local/clang/include/absl/log/internal/log_message.h34t::_53 o:
note: rexpanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/types/source_location.h_
a:s113  s:289i19 | g#:nd_ ehfiwarning: inntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]te_
 iambpsl  l,_113 n& | u&l , l   ac bo icnolnssittt  y&c_,hu
na      rk| *n  ^ o
awb/usr/local/clang/include/absl/container/internal/btree_container.hns:l 511__:Nn52uo:nln ulnote: l_expanded from macro 'ABSL_INTERNAL_X'lu
n sfp  ie511lc | ie _f ni ae dm e
         =|                                    ^_ 
 _AbBuSiLl_tIiNnT_EFRINLAEL(_)A)T TIn file included from {R
s2/s2polyline_simplifier.ccI      :B| 18                  ^U:
T
In file included from E../src/s2/s2polyline_simplifier.h_:/usr/local/clang/include/absl/base/nullability.hC63A::
P241In file included from T:../src/s2/s1chord_angle.hU22:R:29E :
Dnote: In file included from expanded from macro 'absl_nonnull'_../src/s2/s1angle.h
B:Y28(  :
t241In file included from h | ../src/s2/s2point.hi#:dse27f)i:
)nIn file included from )e  ../src/s2/s2coder.h a: b23 s:
 lIn file included from  _/usr/local/clang/include/absl/status/status.h n: o67 n:
 nIn file included from u l/usr/local/clang/include/absl/status/internal/status_internal.hl  : _29 N:
o In file included from  n/usr/local/clang/include/absl/strings/cord.hn :u 94l :
l 
In file included from        /usr/local/clang/include/absl/strings/internal/cordz_info.h | :                      ^31 
:
\/usr/local/clang/include/absl/synchronization/mutex.h
:      830| :                                                   ^14
: /usr/local/clang/include/absl/container/internal/common.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32
:9:   note: 830macro 'ABSL_INTERNAL_IF_false' defined here | 
       32  |  #bdoeofli n(e* aAbBsSlL__nIoIn file included from NnTs2/s2predicates.ccnE:uR18lNlA :
Lf_In file included from uIn../src/s2/s2predicates.hFc_:)f(57aTl:
*sIn file included from  ea../src/s2/s1chord_angle.h(bi:sf29l_:
_sIn file included from na../src/s2/s1angle.hut:lil28saf:
biiIn file included from eld../src/s2/s2point.hi,t: y._25.u.n):
k nIn file included from _o_../src/s2/util/coding/coder.hwV:nA36)_,:
A
RIn file included from       G../src/s2/base/casts.h| S             ^:_
_34
/usr/local/clang/include/absl/base/nullability.h:
      :In file included from | 241        ^/usr/local/clang/include/absl/log/log.h:
:22209::
 In file included from note: /usr/local/clang/include/absl/log/internal/log_impl.hexpanded from macro 'absl_nonnull':
22:
In file included from   /usr/local/clang/include/absl/log/internal/log_message.h241: | 53#:
d/usr/local/clang/include/absl/types/source_location.he:f133i:n25e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o133n | n u lclo _Nonnnsutlelx
p      r|                       ^c
onst cIn file included from hs2/s2polyline_simplifier.cca:r18*:
 In file included from a../src/s2/s2polyline_simplifier.hb:s63l:
_In file included from n../src/s2/s1chord_angle.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28f:
iIn file included from l../src/s2/s2point.he:_27n:
aIn file included from m../src/s2/s2coder.he:(23):
 In file included from c/usr/local/clang/include/absl/status/status.ho:n67s:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hn:o29e:
xIn file included from c/usr/local/clang/include/absl/strings/cord.he:p94t:
 In file included from {/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                        ^/usr/local/clang/include/absl/synchronization/mutex.h
:830:/usr/local/clang/include/absl/base/nullability.h36::241 :warning: 22type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:In file included from 
 s2/s2polygon.ccnote: :expanded from macro 'absl_nonnull'  18
830:
 | In file included from    ../src/s2/s2polygon.h 241:  | 34# :
 dIn file included from e f../src/s2/mutable_s2shape_index.hibn:oe30o :
laIn file included from b /usr/local/clang/include/absl/container/btree_map.hs(:l*_67an:
bo/usr/local/clang/include/absl/container/internal/btree_container.hsn:nl579u_:ln3lo:n  _warning: nNpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]uoln
ln ufl  ul579
n | c       ) (| ATB                     ^*S
 La_bIsNlT_EnRuNlAlLa_bXi(liIn file included from ints2/s2predicates.ccsye:_r18ut:
n_In file included from ko../src/s2/s2predicates.hnro:_wa57ns:
)s,In file included from i
g../src/s2/s1chord_angle.h      n:| ,                                   ^29 
:
i/usr/local/clang/include/absl/base/nullability.hIn file included from n:s../src/s2/s1angle.h289e::r2834t:
_:oIn file included from  rnote: ../src/s2/s2point.h_expanded from macro 'absl_nullability_unknown'a:
s25s:
  iIn file included from 289g../src/s2/util/coding/coder.h | n#:_dh36eif:
nitIn file included from n_e../src/s2/base/casts.hi ma:pbl34s,l:
 _&In file included from n&u/usr/local/clang/include/absl/log/log.h,l :lca209obn:
islIn file included from ti/usr/local/clang/include/absl/log/internal/log_impl.h t&:y,_22
u:
      nIn file included from | k/usr/local/clang/include/absl/log/internal/log_message.h  ^n:
o53/usr/local/clang/include/absl/container/internal/btree_container.hw:
:n/usr/local/clang/include/absl/types/source_location.h509 ::_14252N::u25 l:note: lexpanded from macro 'ABSL_INTERNAL_X' _
uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  s
509p | e c   i142 f  | i e   d c
 o       n| s                                  ^tAe
xBpSrL _cIoNnTsEtR NcAhLa_rA*T TIn file included from aRs2/s2polyline_simplifier.ccIb:sB18lU_:
nTIn file included from oEn../src/s2/s2polyline_simplifier.h_n:uClAl63P :
TfIn file included from Uu../src/s2/s1chord_angle.hRn:Ec29Dt:
_iIn file included from Bo../src/s2/s1angle.hYn:(_28nt:
haIn file included from im../src/s2/s2point.hse:)(27)):
, In file included from  c../src/s2/s2coder.ho :n 23s :
 tIn file included from   /usr/local/clang/include/absl/status/status.h n: o67 e:
 xIn file included from  c/usr/local/clang/include/absl/status/internal/status_internal.h e: p29 t:
  {In file included from  
/usr/local/clang/include/absl/strings/cord.h       : | 94                         ^:
 
In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h /usr/local/clang/include/absl/base/nullability.h: :31 241:
\:/usr/local/clang/include/absl/synchronization/mutex.h
22:      :831|                                                     ^:note: 
46expanded from macro 'absl_nonnull':
/usr/local/clang/include/absl/container/internal/common.h :  32warning: 241:type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 9
#:d   enote: 831macro 'ABSL_INTERNAL_IF_false' defined heref | 
 i     n32 e |  #  dteayfbpiesnnela _mAneBo SanLb_nsIluN:lT:lEtR yN_pANeL_o_inIdnFeu_nlflta
ilts      ye<| (T                     ^i>f
:_:staytpies*f iaebds,l _.n.u.l)l a_b_In file included from iVlAis2/s2predicates.cc_tA:yR_18GuSn:
_kIn file included from _n../src/s2/s2predicates.h
o:      w57| n        ^:


In file included from       ../src/s2/s1chord_angle.h| :                                             ^29
:
In file included from In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polygon.cc../src/s2/s1angle.h:::2891828::
:
34In file included from In file included from :../src/s2/s2polygon.h../src/s2/s2point.h ::note: 34expanded from macro 'absl_nullability_unknown'25:

:
In file included from In file included from   ../src/s2/mutable_s2shape_index.h../src/s2/util/coding/coder.h289:: | 30#36:
d:
In file included from eIn file included from /usr/local/clang/include/absl/container/btree_map.hf../src/s2/base/casts.h:i:67n34:
e/usr/local/clang/include/absl/container/internal/btree_container.h:
 :aIn file included from 579b/usr/local/clang/include/absl/log/log.hs:l:3_209:n:
 uIn file included from warning: l/usr/local/clang/include/absl/log/internal/log_impl.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l:
a22b:
  iIn file included from 579l/usr/local/clang/include/absl/log/internal/log_message.h | i :t 53yA_:
BuS/usr/local/clang/include/absl/types/source_location.hnLk_:nIo150NwT:nE 40R_N:NAu Ll_warning: lXtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_(
uinnssp  eerc150ti_ | foi re _d a
 s       s|  i                                 ^g 
n ,   i n s e r t _ o r _ a s sIn file included from  is2/s2polyline_simplifier.ccg :n 18_ h icnotn_sitm pclh,a r&*& ,a bcsoln_st n&o,n
n      u| l  ^l
 f/usr/local/clang/include/absl/container/internal/btree_container.hi:l511e:_52n:a mnote: eexpanded from macro 'ABSL_INTERNAL_X')

      |                                        ^  
511 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 A  B241S | L#_dIeNfTiEnReN AaLb_sAlT_TnRoInBnUuTlEl_ C_ANPoTnUnRuElDl_
B      Y| (                     ^t
his)))   :
 In file included from  ../src/s2/s2polyline_simplifier.h : 63 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from \../src/s2/s2coder.h
:      23| :
                                                   ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/container/internal/common.h:
In file included from :In file included from s2/s2predicates.cc31/usr/local/clang/include/absl/status/internal/status_internal.h:::18929:
::
In file included from  In file included from ../src/s2/s2predicates.hnote: /usr/local/clang/include/absl/strings/cord.hmacro 'ABSL_INTERNAL_IF_true' defined here::
5794:
   :
In file included from 31In file included from ../src/s2/s1chord_angle.h | /usr/local/clang/include/absl/strings/internal/cordz_info.h#::d2931e:
:
fIn file included from i/usr/local/clang/include/absl/synchronization/mutex.hn../src/s2/s1angle.h:e:844 28:A:
10BIn file included from :S../src/s2/s2point.h L:_warning: 25Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:

TIn file included from E../src/s2/util/coding/coder.hR  N:844A36 | L :
_ IIn file included from  F../src/s2/base/casts.h _ :t 34rTu:
*eIn file included from  (a/usr/local/clang/include/absl/log/log.hibf:s_l209s_:
antIn file included from oin/usr/local/clang/include/absl/log/internal/log_impl.hsnf:uil22el:
d ,oIn file included from  b.j./usr/local/clang/include/absl/log/internal/log_message.he.c:)t 53,i:

f      _/usr/local/clang/include/absl/types/source_location.h| s         ^a:
t165i:/usr/local/clang/include/absl/base/nullability.hs15:f:241i :ewarning: 22dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

       note: |   expanded from macro 'absl_nonnull'        ^165

 |    241  | c#odnesfti ncIn file included from ehs2/s2polygon.cc a:ar18*b:
 saIn file included from bl../src/s2/s2polygon.hs_l:_nn34oo:
nnIn file included from nnu../src/s2/mutable_s2shape_index.hul:ll30 l:
f iIn file included from l_e/usr/local/clang/include/absl/container/btree_map.h_Nn:oa67mne:
_n/usr/local/clang/include/absl/container/internal/btree_container.h u:=l579 l:
"3      ":| ;                      ^
warning: 
      'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]| 
              ^
/usr/local/clang/include/absl/base/nullability.h:241  :57922 | :   note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#In file included from TdEs2/s2polyline_simplifier.cceR:Nf18Ai:
LnIn file included from e_../src/s2/s2polyline_simplifier.hX :a(63ib:
nsIn file included from ls../src/s2/s1chord_angle.he_:nr29to_n:
onIn file included from ru_../src/s2/s1angle.hla:ls28s :
i_In file included from gN../src/s2/s2point.hno:,n27 n:
uiIn file included from ln../src/s2/s2coder.hsl:e
23r      :
t| In file included from _                     ^/usr/local/clang/include/absl/status/status.ho
:r67_:
aIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hs:i29g:
nIn file included from _/usr/local/clang/include/absl/strings/cord.hh:i94n:
tIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hi:m31p:
l/usr/local/clang/include/absl/synchronization/mutex.h,: 845&:&45,:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st &  ,845
 |        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
     b580o | o l   ( a b s l : : t y p e _ i d e nftailtsye<,T >t:r:utey,p ec:o:n*s ta_bistle_rnaotnonru(lhli nmte)t hAoBdS)L(_)I)N;T
E      R| N                                            ^A
L_/usr/local/clang/include/absl/base/nullability.hC:O241M:M22A:) ;note: 
expanded from macro 'absl_nonnull'      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #d/usr/local/clang/include/absl/container/internal/btree_container.he:f511i:n47e:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_no  n511n | u l l   _ N o n n u lAlB
S      L| _                     ^I
NTERNAL_ATTRIBUTE_CAPTURED_BY(this)))In file included from  s2/s2polyline_simplifier.cc : 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h : 63 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
\In file included from 
../src/s2/s2coder.h      :| 23                                              ^~~~:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull oIn file included from bs2/s2predicates.ccj:e18c:
tIn file included from ,../src/s2/s2predicates.h
:      57| :
               ^In file included from 
../src/s2/s1chord_angle.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
25:
  In file included from 241../src/s2/util/coding/coder.h | :#36d:
eIn file included from f../src/s2/base/casts.hi:n34e:
 In file included from a/usr/local/clang/include/absl/log/log.hb:s209l:
_In file included from n/usr/local/clang/include/absl/log/internal/log_impl.ho:n22n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l71 :_26N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
         | 71                     ^ | 
  LogMessage(const cIn file included from hs2/s2polyline_simplifier.cca:r18*:
 In file included from a../src/s2/s2polyline_simplifier.hb:s63l:
_In file included from n../src/s2/s1chord_angle.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28f:
iIn file included from l../src/s2/s2point.he:,27 :
iIn file included from n../src/s2/s2coder.ht: 23l:
iIn file included from n/usr/local/clang/include/absl/status/status.he:,67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/btree_container.h                         ^::
29581:
:In file included from /usr/local/clang/include/absl/base/nullability.h3/usr/local/clang/include/absl/strings/cord.h:::241 94:warning: :
22passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h :note: 31expanded from macro 'absl_nonnull'  :

/usr/local/clang/include/absl/synchronization/mutex.h581:   | 851241 : |  #45dAe:Bf iSwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_n
IeN   Ta851Eb | R sN lA _L n_ oX n(bnionuosllel r (t_a_Nboosrnl_n:au:sltsly
ipg      en| _                     ^,i 
diennsteirtty_<oTr>_:a:stsyipgen:_:h*i natb_silm_pnlo,n n&u&l,l  cmoentshto d&),(
)      
      |                                             ^
|   ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/container/internal/btree_container.h::22509:: 52In file included from :note: s2/s2predicates.cc expanded from macro 'absl_nonnull':note: 
expanded from macro 'ABSL_INTERNAL_X'18
  :
241In file included from  |   #../src/s2/s2predicates.h509d: | e 57f i:
 nIn file included from  e../src/s2/s1chord_angle.h   :a b29 s:
 l In file included from _An../src/s2/s1angle.hBoS:nLn28_uI:
lNIn file included from lT../src/s2/s2point.h E_R:NNoAn25Ln_:
uAIn file included from lTl../src/s2/util/coding/coder.hT
:R      I36| B                     ^:
U
TIn file included from E../src/s2/base/casts.h_:C34A:
PIn file included from T/usr/local/clang/include/absl/log/log.hU:R209E:
DIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hB:Y22(:
t/usr/local/clang/include/absl/log/internal/log_message.hh:iIn file included from 78ss2/s2polyline_simplifier.cc)::)2618,::
  In file included from  warning: ../src/s2/s2polyline_simplifier.h type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: 
63 :
 In file included from     ../src/s2/s1chord_angle.h 78:  | 29  :
  In file included from  L../src/s2/s1angle.ho :g 28 M:
 eIn file included from  s../src/s2/s2point.h s: a27 g:
 eIn file included from  (../src/s2/s2coder.hc o: n23\s:
t
 In file included from       c/usr/local/clang/include/absl/status/status.h| h:                                                   ^a67
r:
*In file included from /usr/local/clang/include/absl/container/internal/common.h /usr/local/clang/include/absl/status/internal/status_internal.h:a:31b29:s:
9lIn file included from :_/usr/local/clang/include/absl/strings/cord.h n:note: o94macro 'ABSL_INTERNAL_IF_true' defined heren:

nIn file included from u   /usr/local/clang/include/absl/strings/internal/cordz_info.hl31:l |  31#f:
di/usr/local/clang/include/absl/synchronization/mutex.hel:fe855i,: ni34en: t A warning: lBtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iS
nLe_,  I
855N       | T|                           ^E R
eNxApL/usr/local/clang/include/absl/base/nullability.hl_iI:cFi241_tt: rC22uoe:n(d iinote: ft_iexpanded from macro 'absl_nonnull'soan
t(i  cso241fni | se#td d,eb of.o.il.n*) e a ibfas_lbs_santloi_nsnnfuiolenlnd u
cl      ol| n        ^ d
_)N;o
nnul      l
      | In file included from                      ^s2/s2polygon.cc
:18:
In file included from | ../src/s2/s2polygon.h                                 ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.h::30241:
:In file included from 22/usr/local/clang/include/absl/container/btree_map.h:: 67:
note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
581:3  :241  | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efine   In file included from 581as2/s2predicates.cc | b :s l18A_B:
nSoIn file included from Ln../src/s2/s2predicates.h_n:Iu57NlT:
lE In file included from R_N../src/s2/s1chord_angle.hNAo:Ln29_nX:
u(lIn file included from il../src/s2/s1angle.hn
s:      e28| r                     ^t:

_In file included from o../src/s2/s2point.hr:_25a:
sIn file included from s../src/s2/util/coding/coder.hi:g36n:
,In file included from  ../src/s2/base/casts.hi:n34s:
eIn file included from r/usr/local/clang/include/absl/log/log.ht:_209o:
rIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.ha:s22s:
i/usr/local/clang/include/absl/log/internal/log_message.hg:n80_:h26i:n twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iIn file included from 
ms2/s2polyline_simplifier.ccp:l18,   :
 80In file included from & | ../src/s2/s2polyline_simplifier.h &:, 63 L:
ocgIn file included from Moe../src/s2/s1chord_angle.hsn:ss29ta:
 gIn file included from e&(../src/s2/s1angle.hc,o:
n28      s:
| tIn file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../src/s2/s2point.h
c:h  27a582r:
 | *In file included from   ../src/s2/s2coder.h a: b23 s:
l _In file included from  n/usr/local/clang/include/absl/status/status.h o:n n67u l:
l In file included from   /usr/local/clang/include/absl/status/internal/status_internal.hf i: l29 e:
 ,In file included from   /usr/local/clang/include/absl/strings/cord.h i: n94tt:
r In file included from ul/usr/local/clang/include/absl/strings/internal/cordz_info.hei:,n31e ,:
f
a/usr/local/clang/include/absl/synchronization/mutex.hl      :s| 886e                         ^:,
31 :c/usr/local/clang/include/absl/base/nullability.h o:warning: n241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:
t22_:  i 886t | enote:  expanded from macro 'absl_nonnull'r 
aet  xop241rl( | i#hdciienftit )nC oeAn BdaSiLbts_iIlo_NnnoT(EncnRoNunlAlsLt __ CTNO*oMn nMualAb)ls;
l
_            n| |                      ^o                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n

nul/usr/local/clang/include/absl/container/internal/btree_container.hl: 509o:b47j:) 
note:       expanded from macro 'ABSL_INTERNAL_X'| 
                              ^
  /usr/local/clang/include/absl/base/nullability.h509: | 241 : 22 : In file included from   s2/s2predicates.ccnote:  expanded from macro 'absl_nonnull': 
 18  :
 241In file included from   | ../src/s2/s2predicates.hA#:BdS57eL:
f_iIn file included from In../src/s2/s1chord_angle.hNeT: Ea29RbN:
sAlIn file included from L_../src/s2/s1angle.h_nA:oTnT28nR:
uIIn file included from lBl../src/s2/s2point.hU T:_E25N_oCnA:
nPuIn file included from TUl../src/s2/util/coding/coder.hRl:E
36D      :
_| In file included from B                     ^Y../src/s2/base/casts.h
(:t34h:
iIn file included from s/usr/local/clang/include/absl/log/log.h):)209,:
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 82 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       82  |      L o\g
M      e| s                                              ^~~~s
age(con/usr/local/clang/include/absl/container/internal/btree_container.hs:t581 :c3h:a rwarning: *In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] s2/s2polyline_simplifier.cc
a:/usr/local/clang/include/absl/container/internal/btree_container.hb18:s:
l511In file included from _:../src/s2/s2polyline_simplifier.hn52o::n63 nnote: :
uexpanded from macro 'ABSL_INTERNAL_X'In file included from l
../src/s2/s1chord_angle.hl:   29f511:
i | In file included from l ../src/s2/s1angle.h e :, 28  :
i In file included from n ../src/s2/s2point.h t:  27 l:
iAIn file included from nB../src/s2/s2coder.heS,:L
23_      :
I| In file included from N                         ^/usr/local/clang/include/absl/status/status.hT
:E67/usr/local/clang/include/absl/base/nullability.hR:
N:In file included from A241/usr/local/clang/include/absl/status/internal/status_internal.hL::_2229A::
T In file included from Tnote: /usr/local/clang/include/absl/strings/cord.hRexpanded from macro 'absl_nonnull':I
94B:
  UIn file included from T241/usr/local/clang/include/absl/strings/internal/cordz_info.hE | :#_d31Ce:
Af/usr/local/clang/include/absl/synchronization/mutex.hPi:nTe896U :aRb31Es:Dl __warning: Bntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Yo
(ntn  hu896lil | s  ) )_e)Nx po l ni cn iu lt  l C 
o n       d i|  t                     ^ i 
o n ( c o n s t   T\*
       a| b                                                   ^s
l_/usr/local/clang/include/absl/container/internal/common.hn:o32n:n9u:l lnote:  macro 'ABSL_INTERNAL_IF_false' defined hereo
bj)   
32       | | #                              ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iInFe_ faablssle_(niofn_nsualtli s_fNioendn,u l.l.
.      )|                       ^_
_VA_ARGS__
      |         ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from In file included from ../src/s2/s2polyline_simplifier.hs2/s2predicates.cc::6318:
:
In file included from In file included from ../src/s2/s1chord_angle.h../src/s2/s2predicates.h::2957:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1chord_angle.h::2829:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2325:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/util/coding/coder.h::6736:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/casts.h::2934:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/log.h::94209:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/log_impl.h::3122:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/log_message.h::922119::4841::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    922119 |  |     sLtoagtMiecs sbaogoel&  GTuoaSriannktAelesdoE(qaubasll(:c:oLnosgtS iCnokn*d iatbisoln_*n oanbnsull_ln uslilnaIn file included from kb)s2/s2polygon.ccl;:e
18       :
a| In file included from ,                                        ^../src/s2/s2polygon.h

:      34| /usr/local/clang/include/absl/base/nullability.h:
                                               ^:In file included from 
241../src/s2/mutable_s2shape_index.h::/usr/local/clang/include/absl/base/nullability.h2230:::
257 In file included from :note: /usr/local/clang/include/absl/container/btree_map.h23expanded from macro 'absl_nonnull'::
67 :
  note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nullable'241:
 | 583  #:257d3 | e:#f diwarning: enpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]fe
i na  eb583 s | a bl _sAlnB_oSnnLu_lnIlNauTblElRleN  A__LNN_ounXln(luianlbslleert_or

_            a| | s                      ^                     ^s
i
gn, insert_oIn file included from rs2/s2polyline_simplifier.cc_:a18s:
sIn file included from i../src/s2/s2polyline_simplifier.hg:n63_:
hIn file included from iIn file included from ../src/s2/s1chord_angle.hns2/s2predicates.cc:t:29_18:
i:
In file included from mIn file included from ../src/s2/s1angle.hp../src/s2/s2predicates.h:l:28,57:
 :
In file included from &In file included from ../src/s2/s2point.h&../src/s2/s1chord_angle.h:,:27 29c:
:
oIn file included from In file included from n../src/s2/s1angle.h../src/s2/s2coder.hs::t2823 :
:
&In file included from In file included from ,../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h
::      2567| :
:
  ^In file included from In file included from 
../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/btree_container.h:36:29:
509:
In file included from :In file included from ../src/s2/base/casts.h52/usr/local/clang/include/absl/strings/cord.h:::34 94:
note: :
In file included from expanded from macro 'ABSL_INTERNAL_X'In file included from /usr/local/clang/include/absl/log/log.h
/usr/local/clang/include/absl/strings/internal/cordz_info.h::209  31:
509:
In file included from  | /usr/local/clang/include/absl/synchronization/mutex.h /usr/local/clang/include/absl/log/internal/log_impl.h: :923 22: :
48 /usr/local/clang/include/absl/log/internal/log_message.h: :  121warning:  :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 41
 :A   Bwarning: 923Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | L 
_ I N   T121 E  | R  N  A LLo g_ AM T eT Rs I sB Ua T gE e_ &C A  PT oT US R iE Dn _ BkcYoO(ntnshtli ys(C)ao)n,bd is t li o: n :*L   oa gb Ss il n_ n ku *l  l aa bb ls e l  b_ ) n;\o
n
n            u| | l                                               ^                                                   ^l

 /usr/local/clang/include/absl/base/nullability.hs/usr/local/clang/include/absl/container/internal/common.h:i:257n31:k:23)9:;: 
note:        note: expanded from macro 'absl_nullable'macro 'ABSL_INTERNAL_IF_true' defined here| 

                                        ^  
   25731 | /usr/local/clang/include/absl/base/nullability.h | ##d:deef241fii:nne22e  :aAb Bsnote: Sexpanded from macro 'absl_nonnull'lL_
_nI  uNl241Tl | EaR#bdNlAeeL f__INiFun_ltelr aaubelb(eis
fl      __| nso                      ^an
tniuslfli e_dN,o n.n.u.l)l 
i      f| _                     ^s
atisfied
      |         ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2polygon.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2polygon.h:
:In file included from 34../src/s2/s2coder.h:
:In file included from 23../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 583/usr/local/clang/include/absl/strings/cord.h::394::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]31
:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10  :583  | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
ABSL  _948I | N T EbRoNoAlL _(X*(aibnssle_rntu_lolra_balses iegvna,l _i)n(sceornts_to In file included from rC_os2/s2predicates.ccans:dsiitgin18o_n:
h*iIn file included from  n../src/s2/s2predicates.hatb:_si57lm_p:
nlIn file included from o,n../src/s2/s1chord_angle.h n:&u&29l,:
l In file included from )c../src/s2/s1angle.h o:=n 28sn:
tu In file included from l&l../src/s2/s2point.h,p:
t25      r:
| ;  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 

../src/s2/util/coding/coder.h      :|            ^36584
:
 | In file included from /usr/local/clang/include/absl/base/nullability.h ../src/s2/base/casts.h: :257 34: :
23 In file included from : /usr/local/clang/include/absl/log/log.h  :note:  expanded from macro 'absl_nullable'209 
 :
    In file included from 257 /usr/local/clang/include/absl/log/internal/log_impl.h |  :# d22 e :
f i/usr/local/clang/include/absl/log/internal/log_message.htnr:eu158 ea:,b 32stl:r_u newarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],l 
lcaob  nls158et  | __ iN tueLlrolgaatMboelres(
hs      ai| gn                      ^te)
&  AoBpIn file included from SeLrs2/s2polyline_simplifier.cc_a:It18No:
TrIn file included from <E<../src/s2/s2polyline_simplifier.hR(:Nv63Ao:
LiIn file included from _d../src/s2/s1chord_angle.hC*:O 29Ma:
MbIn file included from sA../src/s2/s1angle.hl):_;28n
u:
l      In file included from l| ../src/s2/s2point.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a:
b27l:
/usr/local/clang/include/absl/container/internal/btree_container.heIn file included from  :../src/s2/s2coder.h 509:v:23)47:
 :In file included from { 
/usr/local/clang/include/absl/status/status.hnote:       :expanded from macro 'ABSL_INTERNAL_X'| 67
                               ^:

In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h509/usr/local/clang/include/absl/base/nullability.h: | :29 257:
 :In file included from  23/usr/local/clang/include/absl/strings/cord.h ::  94 note: :
expanded from macro 'absl_nullable' In file included from 
 /usr/local/clang/include/absl/strings/internal/cordz_info.h :   31A257:
B | /usr/local/clang/include/absl/synchronization/mutex.hS#:Ld948e_:fIi48nN:eT  Ewarning: aRtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]bNs
lA_Ln  _u948Al | T lT aRbIboBloUelT  _E(N_u*lClaaAbPbsTllUe_
RnE      uDl| _                      ^lBa
Yb(lteh iesv)a)l,_ ) ( c o n s t   C o In file included from n ds2/s2predicates.cc i: t 18i o:
 nIn file included from  * ../src/s2/s2predicates.h  a: b57 s :
l _In file included from \n
../src/s2/s1chord_angle.ho      :n| n                                              ^~~~29u
l:
lIn file included from )../src/s2/s1angle.h :=/usr/local/clang/include/absl/container/internal/btree_container.h28 ::
n583uIn file included from :l../src/s2/s2point.h3l::p25 t:
warning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from ;

../src/s2/util/coding/coder.h      /usr/local/clang/include/absl/container/internal/btree_container.h:| :36                                               ^511:

:In file included from 52/usr/local/clang/include/absl/base/nullability.h../src/s2/base/casts.h::: 24134note: :expanded from macro 'ABSL_INTERNAL_X':
22
In file included from :/usr/local/clang/include/absl/log/log.h :note:   expanded from macro 'absl_nonnull'209511
:
 | In file included from    /usr/local/clang/include/absl/log/internal/log_impl.h241 : |  22# d:
 e /usr/local/clang/include/absl/log/internal/log_message.hf i :n e161  AaB:bSs38Ll_:_I nNwarning: oTtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nE
nRuNl  AlL161 __ | AN To TnRLnIougBlMUelsTs
aEg      _e| C&                     ^A 
PoTpUeRrEaDt_oBrY<(<t(hIn file included from cios2/s2polyline_simplifier.ccsn:)s18)t:
) In file included from  v../src/s2/s2polyline_simplifier.h o: i63d *:
  aIn file included from b ../src/s2/s1chord_angle.hs : l29 _:
 nIn file included from u ../src/s2/s1angle.h l:l 28a :
b In file included from  l../src/s2/s2point.h e:  27  v:
) In file included from   ../src/s2/s2coder.h{ 
:       23 | :
\                                     ^In file included from 

/usr/local/clang/include/absl/status/status.h      :/usr/local/clang/include/absl/base/nullability.h| 67                                                   ^
:
:In file included from /usr/local/clang/include/absl/container/internal/common.h257/usr/local/clang/include/absl/status/internal/status_internal.h:::312329:::
9 In file included from :note: /usr/local/clang/include/absl/strings/cord.h :expanded from macro 'absl_nullable'note: 94macro 'ABSL_INTERNAL_IF_true' defined here
:

In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h257   : | 31#31 | d:
e/usr/local/clang/include/absl/synchronization/mutex.h#f:di951ne:fe9i :na bewarning: s type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lA
_Bn  Su951Ll | _l Ia bNvlToeEi Rd_N*NA uLla_bIlsFalb__ltnreuu
le      l(| aib                      ^fl_
es aatrigs_f i=e dn,u l.l.p.t)r ;i
f      _| s        ^a
ti/usr/local/clang/include/absl/base/nullability.hs:f257i:e23d:
       | note:         ^expanded from macro 'absl_nullable'

  257 | #define In file included from as2/s2polygon.ccb:s18l:
_In file included from n../src/s2/s2polygon.hu:l34l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e30 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.hu:l67l:
a/usr/local/clang/include/absl/container/internal/btree_container.hb:l583e:
3      :|                        ^
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   AIn file included from Bs2/s2polyline_simplifier.ccS:L18_:
IIn file included from N../src/s2/s2polyline_simplifier.hT:E63R:
NIn file included from In file included from As2/s2predicates.cc../src/s2/s1chord_angle.hL:_:X1829(:
:
iIn file included from In file included from n../src/s2/s2predicates.h../src/s2/s1angle.hs::e5728r:
:
tIn file included from In file included from _../src/s2/s1chord_angle.h../src/s2/s2point.ho::r2927_:
a:
sIn file included from In file included from s../src/s2/s1angle.h../src/s2/s2coder.hi::g2823n:
:
,In file included from In file included from  ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.hi::n2567s:
:
eIn file included from In file included from r../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.ht::_3629o:
:
rIn file included from In file included from _../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.ha::s3494s:
:
iIn file included from In file included from g/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/strings/internal/cordz_info.hn::_20931h:
:
iIn file included from /usr/local/clang/include/absl/synchronization/mutex.hn/usr/local/clang/include/absl/log/internal/log_impl.ht:_:954i22:m:
52p/usr/local/clang/include/absl/log/internal/log_message.h:l: ,179 warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:&
,35 :  c 954owarning:  | ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] s 
ts t&  a,t179
i |        c |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Lb
oogo  Ml584e  | sC as la lg eV &o  i od pPe rt ar tF uo rn <c <t (i wo cnt(hrcuaoren_,ts *tt  raCuboens,d lic_toninuolsnlt*a_b ilatebe srvla)_tn;oo
rn      (nh| ui                                  ^lnl
t )/usr/local/clang/include/absl/base/nullability.hc ):A;257B
:S      L23| _:                                                   ^I 
note: Nexpanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.hT
:E241  R:N25722A | :L# _dnote: Ceexpanded from macro 'absl_nonnull'Of
iMn  Me241 A | )a#;bd
sel      f_| i                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~nnu
lel/usr/local/clang/include/absl/container/internal/btree_container.h a:bal511be: s47_lN:u_ nlnote: loaexpanded from macro 'ABSL_INTERNAL_X'nb
nluel  l
511        | _ | N                      ^ o 
n n u l l 
        | A                     ^B
SL_INTERNAL_ATTRIBUTE_CIn file included from As2/s2polyline_simplifier.ccP:T18U:
RIn file included from E../src/s2/s2polyline_simplifier.hD:_63B:
YIn file included from (../src/s2/s1chord_angle.ht:h29i:
sIn file included from )../src/s2/s1angle.h):)28 :
 In file included from  ../src/s2/s2point.h In file included from : s2/s2predicates.cc27 ::
 18In file included from  :
../src/s2/s2coder.h In file included from : ../src/s2/s2predicates.h23 ::
 57In file included from  :
/usr/local/clang/include/absl/status/status.h In file included from : ../src/s2/s1chord_angle.h67 ::
 29In file included from  :
/usr/local/clang/include/absl/status/internal/status_internal.h In file included from : ../src/s2/s1angle.h29 ::
 28In file included from  :
/usr/local/clang/include/absl/strings/cord.h In file included from :\../src/s2/s2point.h94
::
      25In file included from | :
/usr/local/clang/include/absl/strings/internal/cordz_info.h                                              ^~~~In file included from :
../src/s2/util/coding/coder.h31::
36/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 956../src/s2/base/casts.h::5234::
 In file included from warning: /usr/local/clang/include/absl/log/log.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h  :95622 | :
 /usr/local/clang/include/absl/log/internal/log_message.h :s190t:a42t:i cwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ool   C190a | s t ALnodgCMaelslsFaugnec&t ioopne(rcaotnosrt< <C(osntddi:t:ioosnt*r eaabms&l _(n*oanbnsull_ln ocn)n;u
l      l|                                                     ^m
)(/usr/local/clang/include/absl/base/nullability.hs:t241d::22::o snote: texpanded from macro 'absl_nonnull'r
ea  m241& |  #odse)f)i;n
e       | a                                         ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _NonnulIn file included from ls2/s2polyline_simplifier.cc
:      18| :
                     ^In file included from 
../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/internal/status_internal.h::58629::
3In file included from :/usr/local/clang/include/absl/strings/cord.h :94warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:  958In file included from 586:s2/s2predicates.cc | 50 :: 18 A:
warning: BIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S../src/s2/s2predicates.h
L:_57I  N:
958TIn file included from  | E ../src/s2/s1chord_angle.hR N:sAt29La_:
tXiIn file included from (ci../src/s2/s1angle.h nbs:oeo28rlt:
 _CIn file included from oa../src/s2/s2point.hrs_:taA25sn:
sdIn file included from iCg../src/s2/util/coding/coder.han:l,36l M:
ienIn file included from ts../src/s2/base/casts.hheo:rd34t(_:
coIn file included from or/usr/local/clang/include/absl/log/log.hn_s:ats209 sC:
iogIn file included from nn/usr/local/clang/include/absl/log/internal/log_impl.hd_i:htiin22otn:
_*/usr/local/clang/include/absl/log/internal/log_message.hi m:ap191bl:s,l43 _&:n& o,nwarning:  ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&u&
l,l  f  ca)l191;s
 | e       , | 
L                                                 ^      o
| g  ^/usr/local/clang/include/absl/base/nullability.hM
:e241s/usr/local/clang/include/absl/container/internal/btree_container.h:s:22a509g::e &note: 52 expanded from macro 'absl_nonnull':o
 p  note: e241expanded from macro 'ABSL_INTERNAL_X'r | 
a#tdo  re509<f< | i( sn ted  : a :bi os sl __ bn aoAsneBn&Su L(l_l*I aN_bTNsEoRnNlnAu_Lnl_olAn
Tn      Tu| Rl                     ^Il
 BmU)T(Es_tCdA:P:TiUoRsE_Db_aIn file included from Bss2/s2polyline_simplifier.ccYe:(&18t :
hoisIn file included from s)../src/s2/s2polyline_simplifier.h)):);63,
:
       In file included from  | ../src/s2/s1chord_angle.h                                           ^: 
29 :
/usr/local/clang/include/absl/base/nullability.h In file included from  :../src/s2/s1angle.h 241: :28 22:
 :In file included from   ../src/s2/s2point.h : note: 27expanded from macro 'absl_nonnull' :

 In file included from    ../src/s2/s2coder.h 241:  | 23 #:
 dIn file included from  e/usr/local/clang/include/absl/status/status.h f: i67\n:

eIn file included from        /usr/local/clang/include/absl/status/internal/status_internal.h| a:                                                   ^b29
s:
l/usr/local/clang/include/absl/container/internal/common.hIn file included from _:/usr/local/clang/include/absl/strings/cord.hn32o:n:94n9:
u:In file included from l /usr/local/clang/include/absl/strings/internal/cordz_info.hlnote:  :_macro 'ABSL_INTERNAL_IF_false' defined hereN31
o:
n   /usr/local/clang/include/absl/synchronization/mutex.hn32:u | l961l#:
d34e      :f|  i                     ^warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
e
 AB  S961L | _ I NsTtEaRtNiAcL _bIoFo_lf aClaslel(BiyfR_esfa(tciosnfsite dT,*  .a.b.s)l __n_oVnAn_uAlRlG Ss_e_l
f      )|          ^{

      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2polygon.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2polygon.h  :24134 | :
#In file included from d../src/s2/mutable_s2shape_index.he:f30i:
nIn file included from e/usr/local/clang/include/absl/container/btree_map.h :a67b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_586n:o3n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
 _No  n586n | u l lA
B      S| L                     ^_
INTERNAL_X(insert_or_assign, insert_In file included from os2/s2polyline_simplifier.ccr:_18a:
sIn file included from s../src/s2/s2polyline_simplifier.hi:g63n:
_In file included from h../src/s2/s1chord_angle.hi:n29t:
_In file included from i../src/s2/s1angle.hm:p28l:
,In file included from  ../src/s2/s2point.h&:&27,:
 In file included from &../src/s2/s2coder.h&:,23 :
fIn file included from a/usr/local/clang/include/absl/status/status.hl:s67e:
,In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29  ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/btree_container.h94::
511In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h52::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_INTERNAL_X':
975:31:   511warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      975  |      i nAlBiSnLe_ IvNoTiEdR NRAeLa_dACTaTlRlIbBaUcTkE(_TC*A PaTbUsRlE_Dn_oBnYn(utlhli sc)a)l)l b a c k )   c o n s t   { 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:                                                    ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/common.h  :24132 | :#9d:e fnote: imacro 'ABSL_INTERNAL_IF_false' defined heren
e a   b32s | l#_dneofninnuel lA B_SNLo_nInNuTlElR
N      A| L                     ^_
IF_false(if_satisfieIn file included from ds2/s2polyline_simplifier.cc,: 18.:
.In file included from .../src/s2/s2polyline_simplifier.hIn file included from ):s2/s2predicates.cc 63:_:
_18In file included from V:
../src/s2/s1chord_angle.hAIn file included from :_../src/s2/s2predicates.h29A::
R57In file included from G:
../src/s2/s1angle.hSIn file included from :_../src/s2/s1chord_angle.h28_::

29In file included from       :
../src/s2/s2point.h| In file included from :        ^../src/s2/s1angle.h27
::
28In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2point.h23::
25In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/util/coding/coder.h67::
36In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/casts.h29::
34In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/log.h94::
209In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h31::
22/usr/local/clang/include/absl/synchronization/mutex.h:
:979/usr/local/clang/include/absl/log/internal/log_message.h::43306:: 3warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |     306s | t a taibcs lb_onooln nAullwla ysstTdr:u:eu(ncioqnuset_ pCtorn<dLiotgiMoens*s aagbesDla_tnau>l ldaabtlae_); 
{       | r  ^e
In file included from t/usr/local/clang/include/absl/base/nullability.hs2/s2polygon.ccu::r24118n::
 22In file included from t:../src/s2/s2polygon.hr :u34note: eexpanded from macro 'absl_nonnull':
;
In file included from  ../src/s2/mutable_s2shape_index.h}  :
24130       | | #                                          ^d
e:
f/usr/local/clang/include/absl/base/nullability.hIn file included from i:/usr/local/clang/include/absl/container/btree_map.hn257:e:67 23a:
b:s/usr/local/clang/include/absl/container/internal/btree_container.h lnote: :_expanded from macro 'absl_nullable'n588
o:  n3257n:u |  l#lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d_
Neofn  in588un | le l  
aAb      BsS| lL                     ^__n
IuNlTlEaRbNlAeL __XN(uilnlsaebrlte_
o      r| _                      ^a
ssign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARIn file included from Gs2/s2polyline_simplifier.ccS:_18_:

In file included from       ../src/s2/s2polyline_simplifier.h| :        ^63
:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2polygon.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/status/status.h34::
67In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h30::
29In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/strings/cord.h67::
94/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 588/usr/local/clang/include/absl/strings/internal/cordz_info.h::331::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]1033
:20:   warning: 588type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  A B1033S | L _ IvNoTiEdR NWAaLi_tX((Miuntseexr*t _aobrs_la_snsoingnnu,l li nmsue)r t{_
o      r| _                   ^a
ssi/usr/local/clang/include/absl/base/nullability.hg:n241_:h22i:n tnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #&d&e,f i&n&e,  afbaslls_en,o
n      n| u  ^l
l /usr/local/clang/include/absl/container/internal/btree_container.h_:N511o:n52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X'

      |                      ^
  511 |           ABSL_INTERNALIn file included from _s2/s2polyline_simplifier.ccA:T18T:
RIn file included from I../src/s2/s2polyline_simplifier.hB:U63T:
EIn file included from _../src/s2/s1chord_angle.hC:A29P:
TIn file included from U../src/s2/s1angle.hR:E28D:
_In file included from B../src/s2/s2point.hY:(27t:
hIn file included from i../src/s2/s2coder.hs:)23):
)In file included from  /usr/local/clang/include/absl/status/status.h :  67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1050 :\31
:       | warning:                                                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/common.h:31 :10509 | :   note: bmacro 'ABSL_INTERNAL_IF_true' defined hereo
ol    W31a | i#tdWeiftihnTei mAeBoSuLt_(IMNuTtEeRxN*A La_bIsFl__ntornuneu(lilf _msua,t iasbfsile:d:,D u.r.a.t)i oinf _tsiamteiosufti)e d{

            | |         ^                              ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2polygon.ccd:e18f:
iIn file included from n../src/s2/s2polygon.he: 34a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_30n:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h :_588N:o3n:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l

      |                      ^
  588 |   ABSL_INTERNAL_X(insert_or_aIn file included from ss2/s2polyline_simplifier.ccs:i18g:
nIn file included from ,../src/s2/s2polyline_simplifier.h :i63n:
sIn file included from e../src/s2/s1chord_angle.hr:t29_:
oIn file included from r../src/s2/s1angle.h_:a28s:
sIn file included from i../src/s2/s2point.hg:n27_:
hIn file included from i../src/s2/s2coder.hn:t23_:
iIn file included from m/usr/local/clang/include/absl/status/status.hp:l67,:
 In file included from &/usr/local/clang/include/absl/status/internal/status_internal.h&:,29 :
&In file included from &/usr/local/clang/include/absl/strings/cord.h,: 94f:
aIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hs:e31,:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 1069  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
32:   warning: 589type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      1069  |      b o o l   W a i t WtirtuheD,e acdolnisnte_(iMtuetreaxt*o ra(bhsiln_tn)o nAnBuSlLl_ ImNuT,E RaNbAsLl_:C:OTMiMmAe) ;d
e      a| d                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
ine/usr/local/clang/include/absl/container/internal/btree_container.h): 511{:
47      :|                                 ^
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/base/nullability.h
:241:22:   511 | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uAlTlT R_INBoUnTnEu_lClA
P      T| U                     ^R
ED_BY(this)))                  In file included from  s2/s2polyline_simplifier.cc : 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h\:
63      :
| In file included from                                               ^~~~../src/s2/s1chord_angle.h
:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
590:3  :241  | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
efin  e590  | a b sAlB_SnLo_nInNuTlElR N_ANLo_nXn(uilnls
e      r| t                     ^_
or_assign, insert_or_asIn file included from ss2/s2polyline_simplifier.cci:g18n:
_In file included from h../src/s2/s2polyline_simplifier.hi:n63t:
_In file included from i../src/s2/s1chord_angle.hm:p29l:
,In file included from  ../src/s2/s1angle.h&:&28,:
 In file included from &../src/s2/s2point.h&:,27 :
tIn file included from r../src/s2/s2coder.hu:e23,:

In file included from       /usr/local/clang/include/absl/status/status.h| :  ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/btree_container.h::29509:
:In file included from 52/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h  :5091093 | : 46 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1093A | B S Lv_oIiNdT ERReNmAoLv_eA(TbTaRsIeB_UiTnEt_eCrAnPaTlU:R:EPDe_rBTYh(rtehaidsS)y)n,c h *   a b s l _ n o n n u l l   s ) ; 
        |                                               ^ 
\
/usr/local/clang/include/absl/base/nullability.h      :| 241                                                   ^:
22: /usr/local/clang/include/absl/container/internal/common.hnote: :expanded from macro 'absl_nonnull'31
:9:   241 | note: #macro 'ABSL_INTERNAL_IF_true' defined hered
efi   n31e |  #adbesfli_nneo nAnBuSlLl_ I_NNToEnRnNuAlLl_
I      F| _                     ^t
rue(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_In file included from Cs2/s2polyline_simplifier.ccO:M18M:
AIn file included from )../src/s2/s2polyline_simplifier.h;:
63      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s1chord_angle.h
:29:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s1angle.h::50928::
47In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h509: | 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94A:
BIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.hL:_31I:
N/usr/local/clang/include/absl/synchronization/mutex.hT:E1109R:N34A:L _warning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
TRI B1109U | T E _eCxApPlTiUcRiEtD _MBuYt(etxhLiosc)k)M,a y b e ( M u t e x *   a b s l _ n u l l a b l e\ 
m      u| )                                              ^~~~

      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257/usr/local/clang/include/absl/container/internal/btree_container.h::23590:: 3:note:  expanded from macro 'absl_nullable'warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  257/usr/local/clang/include/absl/container/internal/btree_container.h | :#511d:e52f:i nnote: eexpanded from macro 'ABSL_INTERNAL_X' 
abs  l511_ | n u l l a b l e   _ NAuBlSlLa_bIlNeT
E      R| N                      ^A
L_ATTRIBUTE_CAPTURED_BY(this)))   In file included from  s2/s2polyline_simplifier.cc : 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h : 63 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h\:
27      :
| In file included from                                                    ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/status/status.h32::679:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from /usr/local/clang/include/absl/strings/cord.h:94   :
32In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1117e: 34A:B Swarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
INTE R1117N | A L _eIxFp_lfiacliste (Miuft_esxaLtoicskfMiaeydb,e (.M.u.t)e x_*_ VaAb_sAlR_GnSu_l_l
a      b| l        ^e
 mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullabIn file included from ls2/s2polygon.cce: 18_:
NIn file included from u../src/s2/s2polygon.hl:l34a:
bIn file included from l../src/s2/mutable_s2shape_index.he:
30      :
| In file included from                       ^/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define In file included from As2/s2polyline_simplifier.ccB:S18L:
_In file included from I../src/s2/s2polyline_simplifier.hN:T63E:
RIn file included from N../src/s2/s1chord_angle.hA:L29_:
IIn file included from F../src/s2/s1angle.h_:t28r:
uIn file included from e../src/s2/s2point.h(:i27f:
_In file included from s../src/s2/s2coder.hIn file included from a:s2/s2predicates.cct23:i:
18sIn file included from :
f/usr/local/clang/include/absl/status/status.hIn file included from i:e../src/s2/s2predicates.h67d::
,57In file included from  :
/usr/local/clang/include/absl/status/internal/status_internal.h.In file included from :.../src/s2/s1chord_angle.h29.:):
29 In file included from i:
/usr/local/clang/include/absl/strings/cord.hfIn file included from :_../src/s2/s1angle.h94s::
a28In file included from t:
/usr/local/clang/include/absl/strings/internal/cordz_info.hiIn file included from :s../src/s2/s2point.h31f::
i25/usr/local/clang/include/absl/synchronization/mutex.he:
:dIn file included from 1146
../src/s2/util/coding/coder.h:      :7| 36:        ^:
 
In file included from warning: ../src/s2/base/casts.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
34:
In file included from /usr/local/clang/include/absl/log/log.h: 2091146:
 | In file included from In file included from  /usr/local/clang/include/absl/log/internal/log_impl.hs2/s2polygon.cc :: 2218 :
:
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2polygon.ht::h31934i::
s20In file included from ):../src/s2/mutable_s2shape_index.h) : 30warning: A:
Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from S
L/usr/local/clang/include/absl/container/btree_map.h_:E67X  :
C319/usr/local/clang/include/absl/container/internal/btree_container.hL | :U 592S :I 3V :cE o_warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]sL
tO CwK  _c592Fh | aU rN _CAtTB*IS OLNa_b(IsmNluT)_E
Rn      Nu| Al      ^~~~Ll
_aXb(lien sceornts_to&r _va)s;s
i      g| n                   ^,
 in/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.hs::e2571153r::t2339_::o  rnote: warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'a

ss i  1153g257 | n |  #_ dheeifxniptnl_eii cmaiptbl s,lR _e&ln&e,ual s&la&abb,lle et M_rNuuutele,lx
La      ob| lce  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~k

(      M|   u                      ^593t
 | e x *   a b s l _ n o n n u l l   m ut)r
u      e| ,                                      ^ 
con/usr/local/clang/include/absl/base/nullability.hs:t241_:i22t:e rnote: aexpanded from macro 'absl_nonnull't
or  (241h | i#ndte)f iAIn file included from nBs2/s2predicates.ccSeL: _18aIb:
NsTIn file included from lE_../src/s2/s2predicates.hRn:No57AnLn:
_uCIn file included from lOl../src/s2/s1chord_angle.hM M:_AN29)o;:
n
In file included from n      ../src/s2/s1angle.hu| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:l

28      :
| /usr/local/clang/include/absl/container/internal/btree_container.hIn file included from                      ^:../src/s2/s2point.h
509::2547:
:In file included from  ../src/s2/util/coding/coder.hnote: :expanded from macro 'ABSL_INTERNAL_X'36
:
In file included from ../src/s2/base/casts.h:34  :
509In file included from  | /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 /usr/local/clang/include/absl/log/internal/log_message.hIn file included from  :s2/s2polyline_simplifier.ccA321:B:18S52:
L:In file included from _ ../src/s2/s2polyline_simplifier.hIwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N63T
:
EIn file included from R../src/s2/s1chord_angle.hN:A  29L321:
_ | In file included from Ai../src/s2/s1angle.hTn:Tl28RiI:
BnIn file included from eU../src/s2/s2point.h T:EL27_o:
CgIn file included from AM../src/s2/s2coder.hPe:Ts23Us:
RaIn file included from Eg/usr/local/clang/include/absl/status/status.hDe:_&67 BL:
oYIn file included from (g/usr/local/clang/include/absl/status/internal/status_internal.htM:he29is:
ssIn file included from )a/usr/local/clang/include/absl/strings/cord.h)g:,e94 ::
 :In file included from  o/usr/local/clang/include/absl/strings/internal/cordz_info.h p:e r31 a:
 t/usr/local/clang/include/absl/synchronization/mutex.h o: r1158 <: <53 (: w  cwarning:  h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] a
 r _  t 1158 * |      a b \ s
 l      _ | Mn                                              ^~~~uu
tlelxa&b/usr/local/clang/include/absl/container/internal/btree_container.h l:me592u :v) {
       3| A:                                                   ^B 
warning: Spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]L/usr/local/clang/include/absl/base/nullability.h
_:/usr/local/clang/include/absl/container/internal/btree_container.hI257:N:511T23:E:52R :N note: note: In file included from Aexpanded from macro 'absl_nullable'expanded from macro 'ABSL_INTERNAL_X's2/s2polyline.ccL

:_18    A:
257511TIn file included from  |  | T../src/s2/s2polyline.hR# :Id 33 B e:
U fIn file included from T Ei../src/s2/s1angle.h _n: C e28A P :
ATBaIn file included from USRb../src/s2/s2point.hLE_s:DI_l27NBT_:
YE(nIn file included from RtNu../src/s2/s2coder.hhAil:Ls_l23)A,a:
T
TbIn file included from       Rl/usr/local/clang/include/absl/status/status.h| Ie:                                                    ^~~~B 67_
U:
TNIn file included from uE/usr/local/clang/include/absl/status/internal/status_internal.hl_:Cl29Aa:
PbIn file included from Tl/usr/local/clang/include/absl/strings/cord.hUe:
R94E      :
D| In file included from _                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.hB
:Y31(:
th/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/synchronization/mutex.hi::s4891166)::)1439)::    warning: warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 

         4891166  |  |         e  x  p  l vi oc ii dt    (R *e\al
be      sa| ls                                                   ^_a
nbul/usr/local/clang/include/absl/container/internal/common.hel:lM31au:bt9le:ex  Lnote: iomacro 'ABSL_INTERNAL_IF_true' defined herecn
kv(a   Mr31uit | ea#xnd*te )fa(ibvnsoeli _dAn*Bo SnanLbu_slIllN_ TnmEuRulN,lA aLcb_oiInlFsi_ttt yrC_uouenn(dkiinfto_iwsonan)t&,i 
sc      fo| in             ^ed
d),
       /usr/local/clang/include/absl/base/nullability.h.| .:                                      ^.257
): 23/usr/local/clang/include/absl/base/nullability.hi:In file included from :f s2/s2predicates.ccnote: 241expanded from macro 'absl_nullable'_::
s1822a  t:
:257iIn file included from   | s../src/s2/s2predicates.hnote: #fdi:expanded from macro 'absl_nonnull'eef57
di  n:

241eIn file included from        |  ../src/s2/s1chord_angle.ha| b        ^#:s
ld_29enfu:
ilnIn file included from lea In file included from ../src/s2/s1angle.hbals2/s2polygon.cc:be: 28s18l_:
:
_NIn file included from In file included from nuol../src/s2/s2point.h../src/s2/s2polygon.hnl::na2534ubl:
:
lle In file included from In file included from 
_../src/s2/util/coding/coder.h../src/s2/mutable_s2shape_index.h      N::| o                      ^3630n
:
:
nIn file included from In file included from u../src/s2/base/casts.h/usr/local/clang/include/absl/container/btree_map.hlIn file included from ::ls2/s2polyline.cc3467
::
:
      18In file included from /usr/local/clang/include/absl/container/internal/btree_container.h| :
/usr/local/clang/include/absl/log/log.h:                     ^In file included from :592
../src/s2/s2polyline.h209:::
333In file included from ::
/usr/local/clang/include/absl/log/internal/log_impl.h In file included from :warning: ../src/s2/s1angle.h22'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]::

28/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 340  ../src/s2/s2point.h:592:46 | 27 ::
  In file included from Awarning: ../src/s2/s2coder.hBtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:S
23L:
_In file included from I  /usr/local/clang/include/absl/status/status.hN340:T | In file included from 67E s2/s2polyline_simplifier.cc:
R :In file included from Nf18/usr/local/clang/include/absl/status/internal/status_internal.hAr:
:LiIn file included from 29_e../src/s2/s2polyline_simplifier.h:
Xn:In file included from (d63/usr/local/clang/include/absl/strings/cord.hi :
:nvIn file included from 94so../src/s2/s1chord_angle.h:
ei:In file included from rd29 /usr/local/clang/include/absl/strings/internal/cordz_info.ht:
_A:In file included from ob31../src/s2/s1angle.hrs:
:/usr/local/clang/include/absl/synchronization/mutex.h_l28:aF:
489soIn file included from :sr../src/s2/s2point.hm45i:ga:27nt :
,FIn file included from lwarning:  ../src/s2/s2coder.hiutype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:ns
23sh:
e  (In file included from r489tS/usr/local/clang/include/absl/status/status.ht | _ : ro67r _ i:
a snIn file included from  sg/usr/local/clang/include/absl/status/internal/status_internal.hvii:ogf29indy:
_ hSIn file included from (ii/usr/local/clang/include/absl/strings/cord.hn*natb:k_s94l*i:
_ mIn file included from pnla/usr/local/clang/include/absl/strings/internal/cordz_info.hu,b :&ls31&l,l:
a _/usr/local/clang/include/absl/synchronization/mutex.hb&n:l1179e& ,o:i n10ntn:uvlrl aur warning: sei,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
ia
n      tn|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)k1179
(, | v 
  o i      593Mdu|  |                                              ^*t eax *
b s /usr/local/clang/include/absl/base/nullability.h la_b :ns l241u l l a _ :bn 22iul i:l t y  l_aubnl enote: kexpanded from macro 'absl_nonnull'  nm
 otur  w_n;)u,e
241
,        |       | c                                            ^#| o
nd         ^s/usr/local/clang/include/absl/base/nullability.hte
:_f289/usr/local/clang/include/absl/base/nullability.hii::tn34257ee::r  23aanote: :expanded from macro 'absl_nullability_unknown'tb 
osnote: rexpanded from macro 'absl_nullable'(  hl
_289in   | n#o257td)n | e#fdi nAneuelBfSiLn_e  lI aabbsNl_sNT_lnoE_unRnlunNlAaLb_illuClilOaMbMltelAy) ;
__
N      u      nuk| | ln                     ^                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~loa

wbnl e/usr/local/clang/include/absl/container/internal/btree_container.h_
:N      511u| :l                      ^47l
:_ unote: nexpanded from macro 'ABSL_INTERNAL_X's
pec  i511f | i e d 
        |                                   ^ 
   ABSL_INTERNAIn file included from Ls2/s2polyline.cc_:A18T:
TIn file included from R../src/s2/s2polyline.hI:B33U:
TIn file included from E../src/s2/s1angle.h_:C28A:
PIn file included from T../src/s2/s2point.hU:R27E:
DIn file included from _../src/s2/s2coder.hB:Y23(:
tIn file included from h/usr/local/clang/include/absl/status/status.hi:s67):
)In file included from )/usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 490 : 13 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
 \
        490|  |                                               ^~~~ 
     void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/btree_container.h::67618:
:In file included from 64/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :61831 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :A499B:S35L:_ Iwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERN  A499L | _ X (vtoriyd_ eEmnpalbalceeD,e bturgyL_oegm(pcloancset_ icmhpalr,*  caobnsslt_ n&u,l lfaabllsee )n;a
m      e| )                                                               ^;

      | /usr/local/clang/include/absl/container/internal/btree_container.h                                  ^:
596:9/usr/local/clang/include/absl/base/nullability.h:: 257:note: 23macro 'ABSL_INTERNAL_X' defined here:
 note: expanded from macro 'absl_nullable'  
596 |   #257d | e#fdienfei nAeB SaLb_sIlN_TnEuRlNlAaLb_lXe( F_uNnucl,l aCballel
e      e| ,                      ^ 
KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2polyline.cc:18In file included from :
s2/s2polyline_simplifier.ccIn file included from :../src/s2/s2polyline.h18::
33In file included from :
../src/s2/s2polyline_simplifier.hIn file included from :../src/s2/s1angle.h63::
28In file included from :
../src/s2/s1chord_angle.hIn file included from :../src/s2/s2point.h29::
27In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2coder.h28::
23In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/cord.h67::
94In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h29::
31In file included from :
/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/synchronization/mutex.h94::
549In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h40::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1212:52:   warning: 549type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  st a1212t | ibco ovlo iCdo nIdnictrieomne:n:tCSaysntcAhnSdeCma(lMluM/usr/local/clang/include/absl/container/internal/btree_container.hte:et618xh:*o3 d:(ac boswarning: lnpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s_
tn oCno  nn618ud | li lt  iAmoBunS,*L
 _a      Ib| Ns                                       ^lT
_EnR/usr/local/clang/include/absl/base/nullability.hNo:An241Ln:_u22Xl:(l t note: cr)expanded from macro 'absl_nonnull'y 
_{e  
m241      p | l| #ad                                                   ^ce
ef,i/usr/local/clang/include/absl/base/nullability.h n:ter241 ya:_b22es:ml p_note: lnexpanded from macro 'absl_nonnull'ao
cnen_  iu241ml | pll# ,d_ eNcofoinIn file included from nnsntus2/s2predicates.cce l&: la,b18
 s:
      flaIn file included from | _                     ^nlo../src/s2/s2predicates.h
sne:n)57u;:
l
lIn file included from       In file included from  ../src/s2/s1chord_angle.h| s2/s2polyline.cc  ^_::
N2918o:
/usr/local/clang/include/absl/container/internal/btree_container.h:
nIn file included from :In file included from n../src/s2/s1angle.h611../src/s2/s2polyline.hu:::l285233l:
::

In file included from  In file included from       ../src/s2/s2point.h../src/s2/s1angle.hnote: | expanded from macro 'ABSL_INTERNAL_X'::                     ^
2528
:
:
  In file included from In file included from 611../src/s2/util/coding/coder.h../src/s2/s2point.h | :: 3627 :
:
 In file included from In file included from  ../src/s2/base/casts.h../src/s2/s2coder.h :: 3423 :
:
 In file included from In file included from  /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/status/status.h ::A20967B:
:
SIn file included from In file included from L/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/status/internal/status_internal.h_::I2229N:
:
TIn file included from E/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/strings/cord.hR::N39894A::
L11In file included from _In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.hAs2/s2polyline_simplifier.ccT ::T31Rwarning: 18:
Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
/usr/local/clang/include/absl/synchronization/mutex.hB
In file included from :U../src/s2/s2polyline_simplifier.h550T:E  :63_39864:
C | :In file included from A  ../src/s2/s1chord_angle.hP :warning: T 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U :
v
RIn file included from Eo  ../src/s2/s1angle.hDi550:_d | *28B Y :
a b(sIn file included from  t l../src/s2/s2point.hh _:i sn27 ) u:
l)l aIn file included from b, ../src/s2/s2coder.h l :   e23     :
   cIn file included from    o/usr/local/clang/include/absl/status/status.h  n:   s67t  :
 &  In file included from    v/usr/local/clang/include/absl/status/internal/status_internal.h   ):   ;29   
:
            In file included from   b| /usr/local/clang/include/absl/strings/cord.h          ^ a:s
 94 e:
_/usr/local/clang/include/absl/base/nullability.h In file included from \i
:/usr/local/clang/include/absl/strings/internal/cordz_info.hn      257:t| e                                                   ^:31r
n23:
a:/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/synchronization/mutex.hl :::note: 32expanded from macro 'absl_nullable'1221::P
:9e54r:T  : h257r enote:  | warning: amacro 'ABSL_INTERNAL_IF_false' defined hered#type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
Sd
y   en32cf  | h#*d ei1221naf | ibebnoe so alblsA_ nlB_CnoSoLunlnl_nduaIiltbNli lToEnR:N:wCeA)a; Ls_tIA
n_F      dN_| Cuf                                                               ^alal
llla/usr/local/clang/include/absl/base/nullability.hsFeb:lue(241n
i:fc_      22tsi| :aot                      ^ ni(
note: sexpanded from macro 'absl_nonnull'fc
ioe  dn241,s |  #t.d .e.Cf)oi nn_de_i VatAbi_sAlIn file included from oR_GnSos2/s2predicates.ccn_n:*_n18 
u:
a      blsIn file included from | l        ^ l_../src/s2/s2predicates.h
_Nn:oo57nnnnu:
ulIn file included from ll../src/s2/s1chord_angle.hl
 :      c29| )                     ^:
 
{In file included from 
../src/s2/s1angle.h      :| 28                                                     ^:

In file included from ../src/s2/s2point.h:25/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/util/coding/coder.h::2236In file included from ::
s2/s2polyline.cc In file included from note: :../src/s2/base/casts.hexpanded from macro 'absl_nonnull'18:
:
34In file included from   :
../src/s2/s2polyline.h241In file included from :In file included from  | /usr/local/clang/include/absl/log/log.h#33ds2/s2polygon.cc::
e:209In file included from f18:
../src/s2/s1angle.hi:
nIn file included from :In file included from e/usr/local/clang/include/absl/log/internal/log_impl.h28../src/s2/s2polygon.h ::
:aIn file included from 2234b../src/s2/s2point.h:
:
/usr/local/clang/include/absl/log/internal/log_message.hs:lIn file included from _:27../src/s2/mutable_s2shape_index.hn400:
:o:In file included from 30n17../src/s2/s2coder.h:
n::In file included from u 23/usr/local/clang/include/absl/container/btree_map.hl:
lwarning: :In file included from  67type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h_:
N
:/usr/local/clang/include/absl/container/internal/btree_container.ho67n:n  :
619u400In file included from :l | /usr/local/clang/include/absl/status/internal/status_internal.h 63l: :
29        :
 | warning: In file included from c                     ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/strings/cord.ho

:n94s:
  tIn file included from 619 /usr/local/clang/include/absl/strings/internal/cordz_info.h | v: o31i :
Ad/usr/local/clang/include/absl/synchronization/mutex.hB*:S 551La:_b40Is:Nl T_warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Eu
RlNl  Aa551bL | l_e  X (cstotraytn_iIn file included from secs2/s2polyline_simplifier.cc tm:b&p18loa :
oclvIn file included from e ,)../src/s2/s2polyline_simplifier.hD e;:tcr
63rye      :
_me| In file included from emn                ^../src/s2/s1chord_angle.hptl
:Sa29y/usr/local/clang/include/absl/base/nullability.hc:
en_ci:In file included from hmS257../src/s2/s1angle.hpel::m,2328( M::
cuo In file included from note: tn../src/s2/s2point.hexpanded from macro 'absl_nullable'esxt*: 
 27a&:
  b,s ltIn file included from r257_../src/s2/s2coder.hu | n:e#od23)n;ne:

ufIn file included from       li/usr/local/clang/include/absl/status/status.h| ln:                                                              ^ e67 
am:
b/usr/local/clang/include/absl/container/internal/btree_container.huIn file included from ,s:/usr/local/clang/include/absl/status/internal/status_internal.h
l596:      _:29| n9u:
                                       ^:lIn file included from 
 l/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.hnote: a::macro 'ABSL_INTERNAL_X' defined hereb94241
l:
:eIn file included from   22 /usr/local/clang/include/absl/strings/internal/cordz_info.h596:_: |  #note: N31dexpanded from macro 'absl_nonnull'eu:

fl/usr/local/clang/include/absl/synchronization/mutex.hi  l:n241ea1230b |  :Al#12dBee:SfL
 i_      warning: nIe| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N T                      ^
aE
bR sN1230lA | _L n_ oX n( nFbuuolnolcl , _ (NC*oaanlbnlsuelle_l,n
 o      Kn| Qn                     ^uu
alll,  fKuVnacl)In file included from u(s2/s2polyline.cce:,18 :
.In file included from T.../src/s2/s2polyline.h*. :)a33 b:
 sIn file included from  l../src/s2/s1angle.h _: n 28u l:
 lIn file included from  a../src/s2/s2point.h b: i27 l:
 iIn file included from  t../src/s2/s2coder.h y: _23 u:
 nIn file included from  k/usr/local/clang/include/absl/status/status.h n: o67 w:
\nIn file included from 
)/usr/local/clang/include/absl/status/internal/status_internal.h      ,:| 
29        ^      :

| In file included from            ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22/usr/local/clang/include/absl/synchronization/mutex.h:: 552:note: 64expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f552i | n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
    baseIn file included from _s2/s2polyline_simplifier.cci:n18t:
eIn file included from r../src/s2/s2polyline_simplifier.hn:a63l:
:In file included from :../src/s2/s1chord_angle.hP:e29r:
TIn file included from h../src/s2/s1angle.hr:e28a:
dIn file included from S../src/s2/s2point.hy:n27c:
hIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from /usr/local/clang/include/absl/container/internal/btree_container.hn/usr/local/clang/include/absl/status/internal/status_internal.h:u:619l29:l:
3 In file included from :w/usr/local/clang/include/absl/strings/cord.h ,:warning: 
94passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      :

| In file included from                                                                ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:  31619/usr/local/clang/include/absl/base/nullability.h:
 | :/usr/local/clang/include/absl/synchronization/mutex.h 241: :A123022B:S:34L :_ note: Iwarning: expanded from macro 'absl_nonnull'Ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
T
E  R241N |  A#1230Ld | _e Xf ( it nrebyo _aoebmlpslIn file included from  la_cs2/s2predicates.cc(neo:*,n 18anbt:
uslll_ nroIn file included from _yN_oenn../src/s2/s2predicates.hmnpn:ulu57lall
:
cle _fiu      In file included from mnp| l                     ^,../src/s2/s1chord_angle.hc
) (:cTo29*n :
satIn file included from b s../src/s2/s1angle.h&l:,_28 ntu:
In file included from rlIn file included from s2/s2polyline.cculea../src/s2/s2point.h:)b:18;i25:

l:
In file included from       iIn file included from ../src/s2/s2polyline.h| t  ^y../src/s2/util/coding/coder.h:
_:33u/usr/local/clang/include/absl/container/internal/btree_container.hn36:
:k:
In file included from 611nIn file included from ../src/s2/s1angle.h:o../src/s2/base/casts.h:52w:28:n34:
 ):
In file included from note: ,expanded from macro 'ABSL_INTERNAL_X'In file included from ../src/s2/s2point.h

/usr/local/clang/include/absl/log/log.h:      :27|                                    ^209:
611
:
In file included from /usr/local/clang/include/absl/base/nullability.h | In file included from ../src/s2/s2coder.h: /usr/local/clang/include/absl/log/internal/log_impl.h:289 :23: 22:
34 :
In file included from : /usr/local/clang/include/absl/status/status.h /usr/local/clang/include/absl/log/internal/log_message.h : :note: 67expanded from macro 'absl_nullability_unknown' 425:

 :In file included from  31  /usr/local/clang/include/absl/status/internal/status_internal.hA:289:B  | 29Swarning: #:
Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dIn file included from e_f
/usr/local/clang/include/absl/strings/cord.hIi:nN94T  e:
 E425In file included from aR | /usr/local/clang/include/absl/strings/internal/cordz_info.h b N:sLAo31lL_g:
M_n/usr/local/clang/include/absl/synchronization/mutex.hueAs:lTls556aTaR:Igb38Bei:UFl TaEtiawarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]CtAl
(yPc_o  TuUn556nRs | tkE D nc _oBhvwoni d_Ya N(rL*utoh lcikalbssS_)u)ll_onn,swo pLn eon cou ipl f(l i eS yfn d ic
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t P a r na mt  In file included from s *   ls2/s2polyline_simplifier.cca i:b s n18l\_
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n      o)In file included from | n                                                   ^ ../src/s2/s2polyline_simplifier.hn
uA:Bl/usr/local/clang/include/absl/container/internal/common.h63Sl::
L _31In file included from wA:../src/s2/s1chord_angle.haT9:iT:R29t I:
pnote: ,macro 'ABSL_INTERNAL_IF_true' defined here BIn file included from 
iU../src/s2/s1angle.h   nT:E31t28 _ | :
fClO#In file included from aLd../src/s2/s2point.hgDe:s;f27)
i:
;      nIn file included from e
| ../src/s2/s2coder.h       A                              ^:| B                                     ^
23S
L:
_/usr/local/clang/include/absl/base/nullability.hIn file included from /usr/local/clang/include/absl/base/nullability.hI:N/usr/local/clang/include/absl/status/status.h:241T:E241:67R:22:
N22A:In file included from :L /usr/local/clang/include/absl/status/internal/status_internal.h _:note: note: expanded from macro 'absl_nonnull'I29Fexpanded from macro 'absl_nonnull'_
:

tIn file included from r  /usr/local/clang/include/absl/strings/cord.h  u241:241e | 94 | (#i#:
dfe_fsiantei sadIn file included from fbie/usr/local/clang/include/absl/strings/internal/cordz_info.hself:id_31nn,:
 o.ne/usr/local/clang/include/absl/synchronization/mutex.h.n.u)l  :ali1231fb :_s_8slN:a_o tnnwarning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]ons
fnuniu lel1231ld
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_nulIn file included from lIn file included from s2/s2polygon.ccas2/s2polyline.ccb:i:18l18i:
:
tIn file included from yIn file included from ../src/s2/s2polygon.h_../src/s2/s2polyline.hu::n3433k:
n:
oIn file included from In file included from w../src/s2/mutable_s2shape_index.hnIn file included from ../src/s2/s1angle.h: s2/s2predicates.cc:30a:28:
r18:
In file included from g:
In file included from /usr/local/clang/include/absl/container/btree_map.h)In file included from ../src/s2/s2point.h:
../src/s2/s2predicates.h:67      :27:
| 57:
/usr/local/clang/include/absl/container/internal/btree_container.h       ^:
In file included from :
In file included from ../src/s2/s2coder.h619../src/s2/s1chord_angle.h/usr/local/clang/include/absl/base/nullability.h::::23329289:
::
:In file included from  In file included from 34/usr/local/clang/include/absl/status/status.hwarning: ../src/s2/s1angle.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:::
 6728note: :
expanded from macro 'absl_nullability_unknown':
In file included from   
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h619../src/s2/s2point.h:   | :29289 25:
 |  :
In file included from #AdIn file included from /usr/local/clang/include/absl/strings/cord.hBeS../src/s2/util/coding/coder.h:fL:94i_n36:
IeN:
In file included from  TIn file included from /usr/local/clang/include/absl/strings/internal/cordz_info.haE../src/s2/base/casts.hR:NbA:31sLl34:
__Xn:
/usr/local/clang/include/absl/synchronization/mutex.h(In file included from u:ltl/usr/local/clang/include/absl/log/log.h558ray::b_i20935elm:
:iptIn file included from  lya/usr/local/clang/include/absl/log/internal/log_impl.hwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ucn:
ek,22n  o w:
558tnr/usr/local/clang/include/absl/log/internal/log_message.h |  y_: _Ne426 ublolm:o_lu p31nLlo:sapce ckcSwarning: ei_fiimeldtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]polw,W
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       ct| hoDne                                   ^sat426
d l&i, | n  e t(LrMougueMH)o;we
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_Fnaot/usr/local/clang/include/absl/container/internal/btree_container.hna:nl611u(:cl47lo:n s htnote:  oexpanded from macro 'ABSL_INTERNAL_X'wc
,h
a        r| 611                                  ^* | 
   /usr/local/clang/include/absl/base/nullability.h aIn file included from : bs2/s2polyline_simplifier.cc241 s:: l18_22 :
n: In file included from  o ../src/s2/s2polyline_simplifier.h nnote: :Anexpanded from macro 'absl_nonnull'63Bu
:
SlIn file included from   Ll../src/s2/s1chord_angle.h241_ : | I#f29NdTi:
eEfRiNnAeLlIn file included from e _../src/s2/s1angle.h,aA:T b28Tis:
lR_InnIn file included from BoUnTnEt../src/s2/s2point.hu_lClA  :lPi_n27TNUoRe:
nEnDu,In file included from _lBlY

../src/s2/s2coder.h(      t      :| h                     ^| 23                              ^i
:

sIn file included from )/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h):,:67 241:
 In file included from :In file included from  s2/s2polyline.cc22/usr/local/clang/include/absl/status/internal/status_internal.h : ::18  29:
 note: :
expanded from macro 'absl_nonnull'In file included from  In file included from  
../src/s2/s2polyline.h/usr/local/clang/include/absl/strings/cord.h : :   3394 241:
:
  | In file included from In file included from  #../src/s2/s1angle.h/usr/local/clang/include/absl/strings/internal/cordz_info.h d:: e2831 f:
:
 iIn file included from n/usr/local/clang/include/absl/synchronization/mutex.he  ../src/s2/s2point.h: a:1241 b27s: :
 l12_In file included from  : n../src/s2/s2coder.ho \:
nwarning: 23      ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
| u
In file included from                                               ^~~~l/usr/local/clang/include/absl/status/status.hl
  :_124167N | :
 oIn file included from  n/usr/local/clang/include/absl/status/internal/status_internal.hn :u 29lb:
loIn file included from o
/usr/local/clang/include/absl/strings/cord.hl      : | 94(                     ^:
*
In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o559n:n46u:l lwarning:  In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]fs2/s2predicates.cc
u:n18  c:
559)In file included from  | ( ../src/s2/s2predicates.hT *:   57a b:
 sIn file included from  l ../src/s2/s1chord_angle.h_ n: u 29l l:
 a In file included from /usr/local/clang/include/absl/container/internal/btree_container.hb i ../src/s2/s1angle.h:l :620i 28:t :
59y _ In file included from :u ../src/s2/s2point.h n :warning: k n25passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] o :

w nIn file included from    c)o../src/s2/util/coding/coder.h620,n: | 
 s 36      tA :
| BCSoIn file included from            ^Ln_../src/s2/base/casts.h
dIi:/usr/local/clang/include/absl/base/nullability.hNtTiEoR34:nN*A La_:
241bXIn file included from :s(l/usr/local/clang/include/absl/log/log.h22t_r::nyu209 _le:
note: lexpanded from macro 'absl_nonnull'ambIn file included from 
pll/usr/local/clang/include/absl/log/internal/log_impl.h  ea:241 cc22 | eo:
#/usr/local/clang/include/absl/log/internal/log_message.h,n dd,:terf
i427y      n:_| e                                             ^mep31
 la:/usr/local/clang/include/absl/base/nullability.habc :sewarning: 257l__type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:inm
23op:nl   note: nexpanded from macro 'absl_nullable'u,l427
 l& |    & 257 _, |  # Nfd oaelfsien)e; n 
a n       busl | ll_                                                           ^ 
n
u       l/usr/local/clang/include/absl/container/internal/btree_container.h |  l:                     ^ a 596
b : l9e : In file included from c onote: n_ss2/s2polyline_simplifier.ccmacro 'ABSL_INTERNAL_X' defined hereNt:
u 18lc  :
lh596In file included from aa | ../src/s2/s2polyline_simplifier.hbr#:l*d 63aee
:
bfs      In file included from il| ../src/s2/s1chord_angle.h                      ^n_:
en29o :
nAnIn file included from Bu../src/s2/s1angle.hSl:Ll28_ :
IfIn file included from Na../src/s2/s2point.hTIn file included from i:lEus2/s2polyline.cc27Rr::
Ne18In file included from A_:
../src/s2/s2coder.hLmIn file included from s:g_../src/s2/s2polyline.h23)X :A:
(33FBIn file included from :
uS/usr/local/clang/include/absl/status/status.hIn file included from nL:../src/s2/s1angle.hc_67:,A:
T28 In file included from CT:
/usr/local/clang/include/absl/status/internal/status_internal.haRlIIn file included from :lB../src/s2/s2point.h29eU:T:
Ee_27In file included from ,C:
O/usr/local/clang/include/absl/strings/cord.h In file included from KL:D../src/s2/s2coder.hQ94u;::
a
23In file included from l      :
/usr/local/clang/include/absl/strings/internal/cordz_info.h,| In file included from :                               ^/usr/local/clang/include/absl/status/status.h31K
::
V67a/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h:
l::In file included from u2411241/usr/local/clang/include/absl/status/internal/status_internal.he:::,223429 :::
.  In file included from .note: warning: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h.type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension])
:
 94   :
  241In file included from 1241  | /usr/local/clang/include/absl/strings/internal/cordz_info.h# |  : d 31 e f:
   i/usr/local/clang/include/absl/synchronization/mutex.h  n:eb 562  o: ao23l  b:s ( *l warning: a_ ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b so
 l n_    nn562\uo | 
 ln      n ul|  vlo        ^i_lN
d  ofLnuonnccuk)Sl(llTo
*w       (aM| bu                     ^sHl
o_wn ualblsalb_inlointnyu_luln khnooww,n )c,o
n      s| t                                 ^ 
Co/usr/local/clang/include/absl/base/nullability.hn:d289i:t34i:o nnote: *expanded from macro 'absl_nullability_unknown' 
ab  s289l | _#nduelflianbel ea bcsoln_dn,u
      l| l                      ^In file included from a
bs2/s2predicates.cc/usr/local/clang/include/absl/container/internal/btree_container.hi/usr/local/clang/include/absl/base/nullability.h::l:i18620241t:
::yIn file included from 322_../src/s2/s2predicates.h::u:  n57warning: note: kexpanded from macro 'absl_nonnull':
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
oIn file included from 
w  n../src/s2/s1chord_angle.h241   : | 620#_d29 | N ue:
 lAlB_SufnIn file included from Lisn../src/s2/s1angle.h_pee c:IaNi28bTsEfR:
li_eNdIn file included from nAoLn_n
../src/s2/s2point.hXu      l:(| t                                 ^l25r
y _:
_eIn file included from Nmo../src/s2/util/coding/coder.hpnln:aucl36el,:

 In file included from       tIn file included from ../src/s2/base/casts.h| r                     ^ys2/s2polyline_simplifier.cc_:
:e3418m:
:
pIn file included from In file included from l/usr/local/clang/include/absl/log/log.h../src/s2/s2polyline_simplifier.hIn file included from a::s2/s2polyline.ccc209e63::
_:
i18In file included from In file included from m:
p/usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s1chord_angle.hIn file included from l::../src/s2/s2polyline.h,2229: :
:
33&/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :
&:../src/s2/s1angle.hIn file included from ,436:../src/s2/s1angle.h :28:f36:
28a:In file included from :
l ../src/s2/s2point.hIn file included from swarning: :../src/s2/s2point.hetype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27:)
:
27;In file included from :

../src/s2/s2coder.h  In file included from       :436../src/s2/s2coder.h| 23 | :   ^ :
23
LIn file included from :
o/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/status.hIn file included from g:M:e/usr/local/clang/include/absl/status/status.hs611s67::a:
6752gIn file included from :
:e/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from  Dnote: :/usr/local/clang/include/absl/status/internal/status_internal.heexpanded from macro 'ABSL_INTERNAL_X'b29u:
:
g29In file included from F  :
/usr/local/clang/include/absl/strings/cord.ha611tIn file included from : | a/usr/local/clang/include/absl/strings/cord.h94 l::
 (94In file included from  c:
/usr/local/clang/include/absl/strings/internal/cordz_info.h oIn file included from : n/usr/local/clang/include/absl/strings/internal/cordz_info.h31 s::
 t31/usr/local/clang/include/absl/synchronization/mutex.h  :
: c/usr/local/clang/include/absl/synchronization/mutex.h1242 h::Aa562r44B:S*:58L  :_a bwarning: warning: Itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lN_

TnEo R  n1242N562An | u | lL  l_ A   fTv oiTltei,R
ydpIeB       nUa| LTmE                                   ^oe_ 
cCakbSsAl/usr/local/clang/include/absl/base/nullability.hlP::oT:U241wtR:(yE22MpDe:u__Bi HYd(note: oetnexpanded from macro 'absl_nonnull'whti
 ist  a)bys241)<,T > l _ | :# n:od etn nfy uipn lele *   a b  hsoa lw_b ,n s ucll oln_ asn bto i nC lno n iud t yli _ ltuin\k o
n_n      *o wN| anbo                                                   ^
sn
      ln_| n                                           ^u/usr/local/clang/include/absl/container/internal/common.hu
ll:ll/usr/local/clang/include/absl/base/nullability.h32a
::b      2899l| :                     ^:e34 
 :c note: onote: macro 'ABSL_INTERNAL_IF_false' defined herenexpanded from macro 'absl_nullability_unknown'
d
,
           32289|  |  |                                                          ^##
ddee/usr/local/clang/include/absl/base/nullability.hff:ii257nn:ee23  :Aa Bbnote: Ssexpanded from macro 'absl_nullable'Ll
__I  nN257Tu | El#RldNaeAbfLii_lnIieFt _yaf_bauslnlsk_enn(ouiwlfnl_ as_baNlteiIn file included from u s_s2/s2predicates.cclfNi:lueldl18_,a :
ubnlsep.eIn file included from 
.c../src/s2/s2predicates.h      .i):| f 57                      ^i_e:

_dVIn file included from 
A../src/s2/s1chord_angle.h_      A:| R29                                 ^G:

SIn file included from _../src/s2/s1angle.h_:
28      :
| In file included from         ^../src/s2/s2point.h
In file included from :s2/s2polyline.cc25::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2polyline.h36::
33In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s1angle.h34::
28In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :../src/s2/s2point.h209::
27In file included from In file included from :
s2/s2polyline_simplifier.cc/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from ::../src/s2/s2coder.h1822::
:
23In file included from /usr/local/clang/include/absl/log/internal/log_message.h:
../src/s2/s2polyline_simplifier.h:In file included from :446/usr/local/clang/include/absl/status/status.h63:::
4367In file included from ::
../src/s2/s1chord_angle.h In file included from :warning: /usr/local/clang/include/absl/status/internal/status_internal.h29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:In file included from :

29s2/s2polygon.ccIn file included from :
:  ../src/s2/s1angle.hIn file included from 18446:/usr/local/clang/include/absl/strings/cord.h:
 | 28:In file included from  :
94../src/s2/s2polygon.h In file included from :
:L../src/s2/s2point.hIn file included from 34o:/usr/local/clang/include/absl/strings/internal/cordz_info.h:
g27:In file included from M:
31../src/s2/mutable_s2shape_index.heIn file included from :
:/usr/local/clang/include/absl/synchronization/mutex.hs../src/s2/s2coder.h30:s::
565a23In file included from :g:
/usr/local/clang/include/absl/container/btree_map.h36eIn file included from ::Q/usr/local/clang/include/absl/status/status.h67 u::
warning: i67/usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e:
:
tIn file included from 621l/usr/local/clang/include/absl/status/internal/status_internal.h:  y:58565D29: | e :
  vbIn file included from warning: ou/usr/local/clang/include/absl/strings/cord.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ig:
dF94a :
U  tIn file included from n621la/usr/local/clang/include/absl/strings/internal/cordz_info.h | o l:c k(31ASBc:
lSo/usr/local/clang/include/absl/synchronization/mutex.hoLwn:_(Is1249tSNy:n cT8Echh:RWNa rwarning: aAiLt_P*type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Xa( 
rtaar ym_sb1249e*ms |  pal l a cbe_ s,nTl _o*t rayn_nbuslle_mnlnpoualnalbncullee_ il wmlpfa lo,iib jlet&pec&),,t  A
,t
rBu            SeL| |                                           ^)_;A       ^

T
      T/usr/local/clang/include/absl/base/nullability.h| R/usr/local/clang/include/absl/base/nullability.hI:                                                         ^:B241
241U::/usr/local/clang/include/absl/container/internal/btree_container.hT2222:E::596_  :Cnote: 9note: Oexpanded from macro 'absl_nonnull'Lexpanded from macro 'absl_nonnull':
D
   ;241  note: 
 | 241macro 'ABSL_INTERNAL_X' defined here      # | 
#| d                                   ^d  e
fe596i/usr/local/clang/include/absl/base/nullability.hf | in:e# n257daee:bfs 23ilna:_eb n snote: oAnlexpanded from macro 'absl_nullable'_BnS
nu  lLo257l_ n | I_Nn#NdoenTufniEnluRlNlA
elL      _  | Xa(_                     ^bFsN
ulno_cnn,u nlCluaallblIn file included from lles2/s2polyline_simplifier.cc
ee:,       18_ | :
                     ^NKuQlulIn file included from 
aa../src/s2/s2polyline_simplifier.hbl:l,63e :

KIn file included from V      ../src/s2/s1chord_angle.ha| :l                      ^u29
e:
,In file included from  ../src/s2/s1angle.h.:.28.:
)In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :\94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h        ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: In file included from warning: s2/s2predicates.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2predicates.h: 57In file included from 1250:
s2/s2polyline.cc | In file included from : ../src/s2/s1chord_angle.h18 ::
 29In file included from  :
../src/s2/s2polyline.hbIn file included from :o../src/s2/s1angle.h33o::
l28In file included from  :
../src/s2/s1angle.h(In file included from :a../src/s2/s2point.h28b::
s25In file included from l:
../src/s2/s2point.h:In file included from ::../src/s2/util/coding/coder.h27t::
y36In file included from p:
../src/s2/s2coder.heIn file included from :_../src/s2/base/casts.h23i::
d34In file included from e:
/usr/local/clang/include/absl/status/status.hnIn file included from :t/usr/local/clang/include/absl/log/log.h67i::
t209In file included from y:
/usr/local/clang/include/absl/status/internal/status_internal.h<In file included from :T/usr/local/clang/include/absl/log/internal/log_impl.h29>/usr/local/clang/include/absl/container/internal/btree_container.h::
:::22In file included from 621t:
/usr/local/clang/include/absl/strings/cord.h:y:/usr/local/clang/include/absl/log/internal/log_message.h3p94::e:
454 :In file included from :warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/strings/internal/cordz_info.h38*
:: 31   a:
bwarning: 621type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.hs | 
:l 576 _An  :BoS45449nL | : n_ I uwarning: NLltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Tol
Eg RM  mNee576AtLs | h_os Xd(a g)t(r)yv_e)oeiQ
mdp lu      iTa| cer                                          ^ety
,lR /usr/local/clang/include/absl/base/nullability.hyet:rFm241yao:_tv22eae:ml( pnote: (bclexpanded from macro 'absl_nonnull'aosna
es  tc_241i e | n#c_htdieaemfprriln*n,e a  &alba&:,: sbPtelsrru_lTehn_o)nrn;neoandnSu
uylnl      lcl  | h  ^*_ f
iN/usr/local/clang/include/absl/container/internal/btree_container.hoal:nbe611,ns:l
u52_      l:ln|                                       ^
onote: nexpanded from macro 'ABSL_INTERNAL_X'
      n
| u                     ^/usr/local/clang/include/absl/base/nullability.hl
l   :611s241) | ; 
:       22 |                                                  ^: 
   /usr/local/clang/include/absl/base/nullability.h note: :expanded from macro 'absl_nonnull' 241 
:A22  B:S241 L | note: _#expanded from macro 'absl_nonnull'Id
NeT  Ef241Ri | Nn#AdeLe _fAaiTnbTsIn file included from eR Ils2/s2polyline_simplifier.ccaBbU_:nsTlE__nC18Aoo:
PnnIn file included from Tnn../src/s2/s2polyline_simplifier.hUuul:lRl63l E_:
 DNIn file included from __No../src/s2/s1chord_angle.hBoYn:n(ntn29uhlu:
ilslIn file included from 
)l../src/s2/s1angle.h      )
:| ,                     ^      28 
 | :
                      ^In file included from  
../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.hIn file included from  : s2/s2polyline.cc67 ::
 18In file included from  :
/usr/local/clang/include/absl/status/internal/status_internal.h In file included from : In file included from ../src/s2/s2polyline.h29 s2/s2predicates.cc::
 :33In file included from  18:
/usr/local/clang/include/absl/strings/cord.h :
In file included from : In file included from ../src/s2/s1angle.h94\../src/s2/s2predicates.h::

:28In file included from       57:
/usr/local/clang/include/absl/strings/internal/cordz_info.h| :
In file included from :                                                   ^In file included from ../src/s2/s2point.h31
../src/s2/s1chord_angle.h::
:/usr/local/clang/include/absl/container/internal/common.h2729/usr/local/clang/include/absl/synchronization/mutex.h::
:
:31In file included from In file included from 1259:../src/s2/s2coder.h../src/s2/s1angle.h:9::14:2328: :
:
 note: In file included from In file included from warning: macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/status/status.h../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
::
6725   :
 :
31In file included from 1259In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h# | d../src/s2/util/coding/coder.h: e:29 f36:
 i:
In file included from  ncIn file included from /usr/local/clang/include/absl/strings/cord.heo ../src/s2/base/casts.h:nAs:94BtS34:
 L:
In file included from T_*In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hI /usr/local/clang/include/absl/log/log.h:Na:31TbE209:
sRlN:
/usr/local/clang/include/absl/synchronization/mutex.h_AIn file included from :nL/usr/local/clang/include/absl/log/internal/log_impl.h578o_::nIn2245Fu_:
:lt/usr/local/clang/include/absl/log/internal/log_message.h lr:warning:  u456type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oeb:
(ji38e  f:c578t_,  | s 
 warning: a      vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t| o             ^
ii
sd  /usr/local/clang/include/absl/base/nullability.hf i456:Bel | 241 d o:,Lc22k (o:.b.ag .s)Mnote: ee expanded from macro 'absl_nonnull'is_
fs  aig_e241nstaQ | ueit#idsefrefinetiadllny
:e:F      a tP| a        ^aeb
slr(lcTo_nhnsrto encIn file included from anhs2/s2polygon.ccduSa:rl*y 18aln:
cb In file included from hs_../src/s2/s2polygon.hN*ol: na_34nnb:
sounIn file included from lln../src/s2/mutable_s2shape_index.hu_l:lnlo 
f30n      ni:
l| euIn file included from                      ^,l /usr/local/clang/include/absl/container/btree_map.hi
l: n67ts:
 /usr/local/clang/include/absl/container/internal/btree_container.hl):i;n621
e:      ,3| In file included from 
:                                            ^s2/s2polyline_simplifier.cc       
:| warning: 18/usr/local/clang/include/absl/base/nullability.h                                     ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
:

In file included from 241/usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline_simplifier.h:::22  24163:621::
  | 22In file included from note:  :../src/s2/s1chord_angle.hexpanded from macro 'absl_nonnull'  :
Anote:   expanded from macro 'absl_nonnull'29B241S
:
 | LIn file included from   #_dI../src/s2/s1angle.hN241e:T | f28E#i:
RdnIn file included from Nee../src/s2/s2point.hAf i:La_bXs(lt_rn27eny:
_ oaIn file included from besn../src/s2/s2coder.hmln:p_u23lnl:
aolIn file included from cn n/usr/local/clang/include/absl/status/status.he_,N u:lot67rln :
yn__In file included from ueN/usr/local/clang/include/absl/status/internal/status_internal.hlmo:lp
n29nlu      l:
la| In file included from                      ^
c/usr/local/clang/include/absl/strings/cord.h
      e:_| 94i                     ^:
m
pIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31&:
&In file included from /usr/local/clang/include/absl/synchronization/mutex.hIn file included from ,s2/s2polyline.cc:s2/s2predicates.cc :1260:t18r:u18:
43e:
In file included from :)In file included from ../src/s2/s2polyline.h ;../src/s2/s2predicates.h:warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:33      
57:
| :
In file included from    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from ../src/s2/s1angle.h1260
../src/s2/s1chord_angle.h: | :28/usr/local/clang/include/absl/container/internal/btree_container.h 29:
: :
In file included from 611 In file included from ../src/s2/s2point.h: ../src/s2/s1angle.h:47b:27:o28:
 o:
In file included from note: lexpanded from macro 'ABSL_INTERNAL_X'In file included from ../src/s2/s2coder.h 
../src/s2/s2point.h:(:23  a25:
611b:
In file included from  | s In file included from /usr/local/clang/include/absl/status/status.hl ../src/s2/util/coding/coder.h:: ::67 t 36:
y p:
In file included from  e In file included from /usr/local/clang/include/absl/status/internal/status_internal.h_ i../src/s2/base/casts.h: dA:29eBn34:
StL:
In file included from i_tIn file included from /usr/local/clang/include/absl/strings/cord.hIyN/usr/local/clang/include/absl/log/log.h:<T:94TE209:
>R::
In file included from N:AIn file included from /usr/local/clang/include/absl/strings/internal/cordz_info.htLy/usr/local/clang/include/absl/log/internal/log_impl.h:_pA:31eT:22:
T:R:
/usr/local/clang/include/absl/synchronization/mutex.h*I /usr/local/clang/include/absl/log/internal/log_message.h:BaU:580bT457:sEl:34__C38:nA: oP warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Twarning: n
Utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ru
  El580Dl |   _ BmYe t457( hb | tohda i )s(e)_si 
)n)       t,e |  r n                                            ^a    
l /usr/local/clang/include/absl/base/nullability.h : : P:e    241r  :T   22 h r e a:d S y n   note: c h expanded from macro 'absl_nonnull' * 
      a b 241 s   | l#_  dn  eu\cfl
oilnaeb      ln | esat                                              ^~~~ b 
cWsahlka_ernu*opn( n
ua      lb| l                                 ^s l
__/usr/local/clang/include/absl/base/nullability.hnN:oo257nnn:nu23ul:ll l note: 
expanded from macro 'absl_nullable'f      
a|   i                     ^l257
u | r#ed_emfsign)e
       a| b                                     ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
_N  u241l | l#adbelfei
n      e|                        ^a
bsIn file included from ls2/s2polyline_simplifier.cc_:In file included from n18s2/s2polyline.cco:
:nIn file included from 18n../src/s2/s2polyline_simplifier.h:
u:In file included from l63l../src/s2/s2polyline.h :
:_In file included from 33N../src/s2/s1chord_angle.ho:
n:In file included from n29u../src/s2/s1angle.h:
l:lIn file included from 28
../src/s2/s1angle.h:
      :In file included from | 28../src/s2/s2point.h                     ^:
:
In file included from 27../src/s2/s2point.h:
:In file included from 27../src/s2/s2coder.h:
:In file included from 23../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:/usr/local/clang/include/absl/synchronization/mutex.h31::
581:/usr/local/clang/include/absl/synchronization/mutex.h38::1279 :35warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
/usr/local/clang/include/absl/container/internal/btree_container.hwarning: :  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]622581
: | 3 :    warning: 1279  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]v o
 ibda   sR622ee | _g i inAstBteSerLrn_MaIulNt:Te:ExPRPeNrrAoTLfh_irXle(eatrdr(Syvy_oneicmdhp *l( a*acabebs,sl l_t_nrnoyon_nnenumulpllll a wcf)en;_)
h(      ii| nn                                     ^tt
_6i/usr/local/clang/include/absl/base/nullability.h4m:_p241tl: ,22w :ac ionote: ntexpanded from macro 'absl_nonnull's_
tc   &y241,c |  l#fedasel)fs)ie;n,
e
             | a|                                   ^b  ^s

l_/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.hn::o241611n::n2252u::l  lnote: note: expanded from macro 'absl_nonnull' expanded from macro 'ABSL_INTERNAL_X'
_
N  o241n |   #nd611ue | fl li 
n e        | a b                     ^ s
 l _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lA
T      T| R                     ^In file included from I
s2/s2polyline.ccB:U18T:
EIn file included from _../src/s2/s2polyline.hC:A33P:
TIn file included from U../src/s2/s1angle.hR:E28D:
_In file included from B../src/s2/s2point.hY:(27t:
hIn file included from i../src/s2/s2coder.hs:)23):
,In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from In file included from  s2/s2polyline_simplifier.cc/usr/local/clang/include/absl/status/internal/status_internal.h :: 1829 :
:
 In file included from In file included from  ../src/s2/s2polyline_simplifier.h/usr/local/clang/include/absl/strings/cord.h : : 6394 :
:
 In file included from In file included from  ../src/s2/s1chord_angle.h /usr/local/clang/include/absl/strings/internal/cordz_info.h: : 2931 :
:
 In file included from /usr/local/clang/include/absl/synchronization/mutex.h ../src/s2/s1angle.h: : 585 28:\:
20
In file included from :      ../src/s2/s2point.h | :warning:                                                    ^27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:

In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/common.h::2332  :
:585In file included from 9 | /usr/local/clang/include/absl/status/status.h: :  67note: v:
macro 'ABSL_INTERNAL_IF_false' defined hereoIn file included from 
i/usr/local/clang/include/absl/status/internal/status_internal.hd:    2932T:
 | rIn file included from #a/usr/local/clang/include/absl/strings/cord.hdn:es94f(:
iMIn file included from nu/usr/local/clang/include/absl/strings/internal/cordz_info.heH :oAw31B :
Sa/usr/local/clang/include/absl/synchronization/mutex.hLb_:sI1293lN:_T33nE:oR nNwarning: nAtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]uLl
_lI Fh o_1293wf | )a;vl osi de/ (/Ri efug_isssetadet rifsMoufrit eeCxdoT,nr d.aVc.a.er)-r >(_vM_ouVitAde_ xA( R*tGarSba_snl_s_
fn      eorn| n
        ^u      
l| l                   ^ 
fn/usr/local/clang/include/absl/base/nullability.h):(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_ nmosngn,u
l      l|                                  ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _NonIn file included from ns2/s2polyline.ccu:l18l:

In file included from       ../src/s2/s2polyline.h| :                     ^33
:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2polyline_simplifier.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2polyline_simplifier.h::2363:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1chord_angle.h::6729:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s1angle.h::2928:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2point.h::9427:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2coder.h::3123:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/status/status.h::58667::
43In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h586: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hv:o1293i:d62 :F ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
bas eIn file included from 1293_s2/s2polygon.cc | i:nv18to:
eiIn file included from rd../src/s2/s2polygon.hn :Rae34lg:
:iIn file included from :s../src/s2/mutable_s2shape_index.hPt:ee30rr:
TMIn file included from hu/usr/local/clang/include/absl/container/btree_map.hrt:ee67ax:
dT/usr/local/clang/include/absl/container/internal/btree_container.hrSa:yc624ne:cr3h(:*v  owarning: aipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]bd
s l(_*  na624ob | ns nl u_AlnBloS
nL      n_| uI                                          ^lN
lT E/usr/local/clang/include/absl/base/nullability.hfR:nN241)A:(L22c_:oX n(note: stexpanded from macro 'absl_nonnull'tr
 yc  _h241ea | mr#p*dl eaafcbiesn,le _ tnarobyns_nleu_mlnplol namncsuegl_,lh
 i      _n| Nt                                                             ^o_
ninm/usr/local/clang/include/absl/base/nullability.hup:ll241l,
:       22c| o:                     ^n 
snote: texpanded from macro 'absl_nonnull' 
&,   241t | r#udee,f
i      n| e  ^ 
In file included from as2/s2polyline.cc/usr/local/clang/include/absl/container/internal/btree_container.hb:s:18l611:
_:In file included from n52../src/s2/s2polyline.ho::n 33n:
unote: In file included from lexpanded from macro 'ABSL_INTERNAL_X'../src/s2/s1angle.hl
 :_28N  o:
n611In file included from n | ../src/s2/s2point.hu :l 27l :

 In file included from        ../src/s2/s2coder.h|  :                     ^ 23
 :
 In file included from  /usr/local/clang/include/absl/status/status.hA:B67S:
LIn file included from In file included from _s2/s2polyline_simplifier.cc/usr/local/clang/include/absl/status/internal/status_internal.hI::N1829T:
:
EIn file included from In file included from R../src/s2/s2polyline_simplifier.h/usr/local/clang/include/absl/strings/cord.hN::A6394L:
:
_In file included from In file included from A../src/s2/s1chord_angle.h/usr/local/clang/include/absl/strings/internal/cordz_info.hT::T2931R:
:
IIn file included from /usr/local/clang/include/absl/synchronization/mutex.hB../src/s2/s1angle.h:U:590T28:E:
40_In file included from :C../src/s2/s2point.h A:warning: P27type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T:

UIn file included from R../src/s2/s2coder.hE:  D23590_:
 | B In file included from Y /usr/local/clang/include/absl/status/status.h(e:tx67hp:
ilIn file included from si/usr/local/clang/include/absl/status/internal/status_internal.h)c:)i29,t:
  In file included from  M/usr/local/clang/include/absl/strings/cord.h u: t94 e:
 xIn file included from  (/usr/local/clang/include/absl/strings/internal/cordz_info.h c: o31 n:
 s/usr/local/clang/include/absl/synchronization/mutex.h t:  1294 v: o62 l: a  twarning:  itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] l
 e    M1294 u |   t e \x 
*         | a                                                    ^b 
s l /usr/local/clang/include/absl/container/internal/common.h _: n 31u :l 9l :a  b note: l macro 'ABSL_INTERNAL_IF_true' defined heree 
  / *    i31 g |  n# od re ef di *n /e )   A {B }S 
L       _ | I                                        ^N 
T E /usr/local/clang/include/absl/base/nullability.hR :N 257A :L 23_ :I  F note:  _expanded from macro 'absl_nullable'ct
ornu  se257t( |  i#vfdo_eisfdai*tn ieas bfasibles_dln,_o nn.un.lu.ll)al b ilofeb_ js_,aN
tu      il| sl                                                             ^fa
ibe/usr/local/clang/include/absl/base/nullability.hld:e
241
      :      | 22|         ^:                      ^
 
note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2polygon.ccb:s18l:
_In file included from n../src/s2/s2polygon.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30_:
NIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl:
624      :| 3                     ^:
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_XIn file included from (s2/s2polyline_simplifier.cct:r18y:
_In file included from e../src/s2/s2polyline_simplifier.hm:p63l:
aIn file included from c../src/s2/s1chord_angle.he:,29 :
tIn file included from r../src/s2/s1angle.hy:_28e:
mIn file included from p../src/s2/s2point.hl:a27c:
eIn file included from _../src/s2/s2coder.hh:i23n:
tIn file included from _/usr/local/clang/include/absl/status/status.hi:m67p:
lIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht: 94&:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ht:r31u:
e/usr/local/clang/include/absl/synchronization/mutex.h,:
1309      :| 35  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]625
 |     1309  |  v o i d   R e g i s t e r CcoonndsVta_riTtrearcaetro(rv(ohiidn t()* aAbBsSlL__nIoNnTnEuRlNlA Lf_nC)O(M
M      A| )                                  ^;

      | /usr/local/clang/include/absl/base/nullability.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
241:22:/usr/local/clang/include/absl/container/internal/btree_container.h :611note: :expanded from macro 'absl_nonnull'47
:   note: 241expanded from macro 'ABSL_INTERNAL_X' | 
#de  f611i | n e   a b s l _ n o nAnBuSlLl_ I_NNToEnRnNuAlLl_
A      T| T                     ^R
IBUTIn file included from Es2/s2polyline_simplifier.cc_:C18A:
PIn file included from T../src/s2/s2polyline_simplifier.hU:R63E:
DIn file included from _../src/s2/s1chord_angle.hB:Y29(:
tIn file included from h../src/s2/s1angle.hi:s28):
)In file included from ,../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :\31
:
      /usr/local/clang/include/absl/synchronization/mutex.h| :                                              ^~~~1310
:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_non/usr/local/clang/include/absl/container/internal/btree_container.hn:u626l:l3 :c vwarning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
;
      |                                                 ^626
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(ftirnye_ eambpslla_cneo,n nturlyl_ e_mNpolnancuel_lh
i      n| t                     ^_
impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(thisIn file included from )s2/s2polyline.cc):,18 :
 In file included from  ../src/s2/s2polyline.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
\In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                                   ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/container/internal/common.h94::
32In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h9::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hmacro 'ABSL_INTERNAL_IF_false' defined here:
624:68:    32 | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efine   624A | B S Le_xIpNlTiEcRiNtA LM_uItFe_xfLaolcske((Miuft_esxa&t imsuf iAeBdS,L _.I.N.T)E R_N_AVLA__AATRTGRSI_B_U
T      E| _        ^C
APTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2polygon.cce: 18a:
bIn file included from s../src/s2/s2polygon.hl:_34n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.h_:N67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u628l:l3
:       | warning:                      ^
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_empIn file included from ls2/s2polyline.cca:c18e:
_In file included from h../src/s2/s2polyline.hi:n33t:
_In file included from i../src/s2/s1angle.hm:p28l:
,In file included from  ../src/s2/s2point.h&:&27,:
 In file included from t../src/s2/s2coder.hr:u23e:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67  ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
611In file included from :/usr/local/clang/include/absl/strings/cord.h52::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'ABSL_INTERNAL_X':
31:
/usr/local/clang/include/absl/synchronization/mutex.h:  641611: | 68 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
       A641B | S L _eIxNpTlEiRcNiAtL _MAuTtTeRxILBoUcTkE(_MCuAtPeTxU&R EmDu_ BAYB(StLh_iIsN)T)E,R N A L _ A T T R I B U T E _ C A P T U R E D _ B Y (\t
h      i| s                                                   ^)
,
      /usr/local/clang/include/absl/container/internal/common.h| :                                                                   ^~~~31
:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF/usr/local/clang/include/absl/synchronization/mutex.h_:t649r:u29e:( iwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
sati  s649f | i e de,x p.l.i.c)i ti fM_ustaetxiLsofcike(dM
u      t| e        ^x
* absl_nonnullIn file included from  s2/s2polygon.ccm:u18,:
 In file included from c../src/s2/s2polygon.ho:n34s:
tIn file included from  ../src/s2/mutable_s2shape_index.hC:o30n:
dIn file included from i/usr/local/clang/include/absl/container/btree_map.ht:i67o:
n/usr/local/clang/include/absl/container/internal/btree_container.h&: 628c:o3n:d )warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                             ^
/usr/local/clang/include/absl/base/nullability.h  :628241 | : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_INT  E241R | N#AdLe_fXi(nter ya_besmlp_lnaocnen,u ltlr y__Neomnpnlualcle
_      h| i                     ^n
t_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explici/usr/local/clang/include/absl/container/internal/btree_container.ht: 638R:e63a:d ewarning: r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]M
utexL  o638c | k ( M u t e xc*o nasbts lk_enyo_nanrugl<lK >m u&)k  AABBSSLL__SIHNATREERDN_ALLO_CAKT_TFRUINBCUTTIEO_NC(AmPuT)U
R      E| D                                  ^_
BY(/usr/local/clang/include/absl/base/nullability.ht:h241i:s22):) 
      note: | expanded from macro 'absl_nonnull'                                                              ^~~~

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) AB/usr/local/clang/include/absl/synchronization/mutex.hS:L689_:A35T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE_  L689I | F E TeIxMpEl_iBcOiUtN DR e{a
d      e| r      ^~~~M
utexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown In file included from _s2/s2polyline_simplifier.ccN:u18l:
lIn file included from _../src/s2/s2polyline_simplifier.hu:n63s:
pIn file included from e../src/s2/s1chord_angle.hc:i29f:
iIn file included from e../src/s2/s1angle.hd:
28      :
| In file included from                                  ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:In file included from 109s2/s2polyline.cc::5318::
 In file included from ../src/s2/s2polyline.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]33
:
In file included from ../src/s2/s1angle.h:28:
  In file included from 109../src/s2/s2point.h | :v27o:
iIn file included from d../src/s2/s2coder.h :C23o:
pIn file included from y/usr/local/clang/include/absl/status/status.hC:o67r:
dIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.ho:S29t:
rIn file included from i/usr/local/clang/include/absl/strings/cord.hn:g94(:
cIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:s31t:
 /usr/local/clang/include/absl/synchronization/mutex.hC:o815r:d16&:  swarning: rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]c
, s  t815d | : : s t r i n g *   a b sTl*_ naobnsnlu_lnlu ldlsatb)i;l
i      t| y                                                    ^_
unk/usr/local/clang/include/absl/base/nullability.hn:o241w:n22 :a rnote: gexpanded from macro 'absl_nonnull')
;
        | 241               ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f289i:n34e:  anote: bexpanded from macro 'absl_nullability_unknown's
l_  n289o | n#nduelfli n_eN oanbnsull_ln
u      l| l                     ^a
bility_unknown _Null_unspecifieIn file included from ds2/s2polyline_simplifier.cc
:      18| :
                                 ^In file included from 
../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2polyline.cc
:18:
In file included from ../src/s2/s2polyline.h  :11033 | :
vIn file included from o../src/s2/s1angle.hi:d28 :
AIn file included from p../src/s2/s2point.hp:e27n:
dIn file included from C../src/s2/s2coder.ho:r23d:
TIn file included from o/usr/local/clang/include/absl/status/status.hS:t67r:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hg:(29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t94 :
CIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hr:d31&:
 /usr/local/clang/include/absl/synchronization/mutex.hs:r830c:,14 :s twarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:st  r830i | n g *   a b sblo_onlo n(n*ualbls ld_snto)n;n
u      l| l                                                      ^ 
fu/usr/local/clang/include/absl/base/nullability.hn:c241):(22T:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbiinlei tayb_suln_knnoonwnnu)l,l
       _| N             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from In file included from s2/s2polyline_simplifier.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2polyline_simplifier.h../src/s2/s2point.h::6327:
:
In file included from In file included from ../src/s2/s1chord_angle.h../src/s2/s2coder.h::2923:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/status.h::2867:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/internal/status_internal.h::2729:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/cord.h::2394:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::6731:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/synchronization/mutex.h::29845:
:45/usr/local/clang/include/absl/strings/cord.h:: 425:warning: 62type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
845 |       425  |   b oforli e(nadb svlo:i:dt yCpoep_yiCdoerndtTiotSyt<rTi>n:g:(tcyopnes:t: *C oarbds&l _snrocn,n usltld :m:estthroidn)g(*) )a;b
s      l| _                                            ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :d snote: texpanded from macro 'absl_nonnull')
;
        241|  |                                                              ^#
def/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2polyline_simplifier.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2polyline_simplifier.hIn file included from :/usr/local/clang/include/absl/status/status.h63::
67In file included from :
../src/s2/s1chord_angle.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h29::
29In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/strings/cord.h28::
94In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h27::
31In file included from :
../src/s2/s2coder.h:/usr/local/clang/include/absl/synchronization/mutex.h23::
850In file included from :/usr/local/clang/include/absl/status/status.h16::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
/usr/local/clang/include/absl/strings/cord.h  :850437 | : 47 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons  t437  | T *   a b s l _ n o n n u l l   o b j e c t , 
        |                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22s:t dnote: :expanded from macro 'absl_nonnull':
st  r241i | n#gd*e faibnsel _anbosnln_unloln ndusltl) ;_
N      o| n                                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2polyline.cc_:n18o:
nIn file included from n../src/s2/s2polyline.hu:l33l:
 In file included from _../src/s2/s1angle.hN:o28n:
nIn file included from u../src/s2/s2point.hl:l27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::*In file included from  s2/s2polyline_simplifier.cca:b18s:
lIn file included from _../src/s2/s2polyline_simplifier.hn:o63n:
nIn file included from u../src/s2/s1chord_angle.hl:l29 :
mIn file included from e../src/s2/s1angle.ht:h28o:
dIn file included from )../src/s2/s2point.h(:)27
:
      In file included from | ../src/s2/s2coder.h                                            ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h:67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
480:39  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e480  | a b s l _unsoinnngu lplo i_nNtoenrn u=l lc
o      n| s                     ^t
 value_type* absl_nonnullIn file included from ;s2/s2polyline.cc
:      18| :
                                      ^In file included from 
../src/s2/s2polyline.h:33/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.h_:N855o:n34n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2polyline_simplifier.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2polyline_simplifier.h:
:In file included from 63/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s1chord_angle.h:
:In file included from 29/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s1angle.h:
:28/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 886../src/s2/s2point.h::3127::
 In file included from ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
886In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29e:
x/usr/local/clang/include/absl/strings/cord.hp:l504i:c40i:t  warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
ndi  t504i | o n ( c oenxsptl iTc*i ta bCshlu_nnkoIntneurlalt oorb(jc)o
n      s| t                              ^ 
Cor/usr/local/clang/include/absl/base/nullability.hd:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld ecfoirnde) ;a
b      s| l                                       ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2polyline.cc507::1843:
:In file included from  ../src/s2/s2polyline.h:warning: 33type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
  In file included from 507../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.hv:o23i:
dIn file included from  /usr/local/clang/include/absl/status/status.hI:n67i:
tIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hr:e29e:
(In file included from c/usr/local/clang/include/absl/strings/cord.ho:r94d:
_In file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:t31e:
r/usr/local/clang/include/absl/synchronization/mutex.hn:a896l::31::C owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
Rep  *896  | a b selx_pnloincniutl lC otnrdeiet)i;o
n      (| c                                          ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241T:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ionbej )a
b      s| l                              ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
nIn file included from es2/s2polyline_measures.cc :a18b:
sIn file included from l../src/s2/s2polyline_measures.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82In file included from :
s2/s2polyline_simplifier.ccIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h18::
23In file included from :
../src/s2/s2polyline_simplifier.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h63::
32In file included from :
../src/s2/s1chord_angle.hIn file included from :/usr/local/clang/include/absl/strings/str_format.h29::
84In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/strings/internal/str_format/bind.h28::
29In file included from :
../src/s2/s2point.h:27/usr/local/clang/include/absl/strings/internal/str_format/parser.h:
In file included from :In file included from s2/s2polyline.cc227../src/s2/s2coder.h:::182311:
:
:In file included from In file included from  ../src/s2/s2polyline.h/usr/local/clang/include/absl/status/status.h:warning: :3367'enable_if' is a clang extension [-Wgcc-compat]:
:

In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/internal/status_internal.h::2829:
  :
In file included from 227/usr/local/clang/include/absl/strings/cord.h../src/s2/s2point.h | :: 52527 ::
 35In file included from  :../src/s2/s2coder.h  : warning: 23 :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] In file included from  
/usr/local/clang/include/absl/status/status.h In file included from :e  s2/s2polygon.cc67n525::
a | b18lIn file included from e _:
i/usr/local/clang/include/absl/status/internal/status_internal.hf (In file included from : s../src/s2/s2polygon.ht29 :ar:
34b_In file included from :
sf/usr/local/clang/include/absl/strings/cord.hoIn file included from l::r../src/s2/mutable_s2shape_index.h94:m:a:
tc33oIn file included from _:
irn/usr/local/clang/include/absl/strings/internal/cordz_info.htIn file included from ed:../src/s2/base/commandlineflags.hr_n31:ial21:n:
:tE:
nIn file included from e/usr/local/clang/include/absl/synchronization/mutex.hs/usr/local/clang/include/absl/flags/flag.hr:u:rne92240aC:o:
nls48/usr/local/clang/include/absl/flags/commandlineflag.h:t:e:: Cx163warning: op:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]rr56(
d:fRo rwarning: m  etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]pa922
*t |   )  a bsst,163la_
 | tni       uc|  lbl a          ^oboolb lPe
oa lrc suGeruFar/usr/local/clang/include/absl/strings/internal/str_format/parser.hrro:eanntm_(l229taeee:basfl_d E11:=q ::una sutlrlwarning: l'enable_if' is a clang extension [-Wgcc-compat]i(ncp
got_nrs;t  v
 229i      eCwo | |                                    ^vnadli 
 u t/usr/local/clang/include/absl/base/nullability.he i :,o  257ns : *t23  da::: be ssnnote: tlaexpanded from macro 'absl_nullable'brl_e
_iin  unlgf257l*a b( | a#bdlsselfei t_nae,rn 
a_o      nbnsuf| l                                               ^_lo
rn/usr/local/clang/include/absl/base/nullability.hullm:a tl257aeb_:irnlt23reo re:_)r nN;note: 
expanded from macro 'absl_nullable'aul      :
l| l:  V                                                       ^a257ba
l | il#deFdo
er      /usr/local/clang/include/absl/base/nullability.hfm| a:i                      ^t241n
eI: m22pa:lb< sCnote: lexpanded from macro 'absl_nonnull'_.
n.u.  l>241l( | afbo#lrdmeae ft_i)Nn,u
el l      aab| b          ^sll
e_
n      o| n                      ^n
ull _NonnuIn file included from ls2/s2polyline.ccl:
18      :
| In file included from                      ^../src/s2/s2polyline.h
:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const ConditIn file included from is2/s2polyline_simplifier.cco:n18*:
 In file included from a../src/s2/s2polyline_simplifier.hb:s63l:
_In file included from In file included from n../src/s2/s1chord_angle.hs2/s2polygon.ccu::l2918l:
:
aIn file included from In file included from b../src/s2/s1angle.h../src/s2/s2polygon.hl::e2834 :
:
bIn file included from In file included from )../src/s2/s2point.h../src/s2/mutable_s2shape_index.h;::
2733      :
:
| In file included from In file included from                                                ^../src/s2/s2coder.h../src/s2/base/commandlineflags.h
::2321/usr/local/clang/include/absl/base/nullability.h:
:
:In file included from In file included from 257/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/flags/flag.h:::236740::
:
 In file included from /usr/local/clang/include/absl/flags/commandlineflag.h/usr/local/clang/include/absl/status/internal/status_internal.hnote: ::expanded from macro 'absl_nullable'19329
::
27  :/usr/local/clang/include/absl/strings/cord.h257 : | 582warning: #:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d37
e:f i  nwarning: 193etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] |  
 a bvsi  rl582t_u | na ul l l v aeobxilpdel  iRc_eiNautdl (lvCaohbiuldne*k
 R      aa| bn                      ^sg
le_(ncoonnnsutl lC odrsdt*)  acbosnls_tn o=n n0u;l
l       | c                          ^o
rd)/usr/local/clang/include/absl/base/nullability.h ::241 :c22o:r dnote: _expanded from macro 'absl_nonnull'(
In file included from   cs2/s2polyline.cco241:r | d18#):
d In file included from e{../src/s2/s2polyline.hf}:i
33n      :
e| In file included from                                      ^../src/s2/s1angle.ha
:b28s/usr/local/clang/include/absl/base/nullability.h:
l:In file included from _241../src/s2/s2point.hn:o:n2227n::
u In file included from l../src/s2/s2coder.hlnote: : expanded from macro 'absl_nonnull'23_
:
NIn file included from   o/usr/local/clang/include/absl/status/status.hn241:n | 67u#:
ldIn file included from le/usr/local/clang/include/absl/status/internal/status_internal.hf
i:      n29e| :
                     ^ In file included from a
/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l948 :_10N:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll
        | 948                     ^ | 
  bool (*absl_nullable eval_)(constIn file included from  s2/s2polyline_simplifier.ccC:o18n:
dIn file included from i../src/s2/s2polyline_simplifier.ht:i63o:
nIn file included from *../src/s2/s1chord_angle.h :a29b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
)In file included from  ../src/s2/s2coder.h=: 23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:p67t:
rIn file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
         ^/usr/local/clang/include/absl/strings/cord.h
:588:/usr/local/clang/include/absl/base/nullability.h17::257 :23warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
  588 |    257  |  # dceofnisnte  Caobrsdl*_ naublslla_bnloen n_uNlull lcaobrlde_
;      
|                             ^| 
                ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2polyline.cc:: 18:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2polyline.h
:33:
  In file included from 241../src/s2/s1angle.h | :#28d:
eIn file included from f../src/s2/s2point.hi:n27e:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29_:
NIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                     ^/usr/local/clang/include/absl/synchronization/mutex.h
:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const ConditioIn file included from ns2/s2polyline_simplifier.cc*: 18a:
bIn file included from s../src/s2/s2polyline_simplifier.hl:_63n:
oIn file included from n../src/s2/s1chord_angle.hn:u29l:
lIn file included from )../src/s2/s1angle.h :=28 :
nIn file included from u../src/s2/s2point.hl:l27p:
tIn file included from r../src/s2/s2coder.h;:
23      :
| In file included from                                                ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
: /usr/local/clang/include/absl/strings/cord.h:note: 641expanded from macro 'absl_nonnull':
33:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def  i641n | e   a b suls_innogn npuoliln t_eNro n=n ucloln
s      t|                       ^c
har* absl_nonnull;
In file included from       s2/s2polyline.cc| :                                ^18
:
In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/base/nullability.h::33241:
:In file included from 22../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2point.h
:27:
  In file included from 241../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31_:
N/usr/local/clang/include/absl/synchronization/mutex.ho:n951n:u9l:l 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^

  951 |   void* absl_nullablIn file included from es2/s2polyline_measures.cc :a18r:
gIn file included from _../src/s2/s2polyline_measures.h :=29 :
nIn file included from u../src/s2/s1angle.hl:l28p:
tIn file included from r../src/s2/s2point.h;:
27      :
| In file included from         ^../src/s2/s2coder.h
:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/status/status.h::2367::
 In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from expanded from macro 'absl_nullable':s2/s2polyline_simplifier.cc
29::
  18In file included from 257:
/usr/local/clang/include/absl/strings/cord.h | In file included from :#../src/s2/s2polyline_simplifier.hd82:e:
63fIn file included from :
i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from n:../src/s2/s1chord_angle.he23: :
29aIn file included from :
b/usr/local/clang/include/absl/crc/crc32c.hIn file included from s:../src/s2/s1angle.hl32:_:
28nIn file included from :
u/usr/local/clang/include/absl/strings/str_format.hIn file included from l:In file included from ../src/s2/s2point.hl84as2/s2r2rect.cc::
b:27/usr/local/clang/include/absl/strings/internal/str_format/bind.hl18:
:e:
In file included from 143 In file included from ../src/s2/s2coder.h:_../src/s2/s2r2rect.h:11N:23:u24:
 l:
In file included from warning: In file included from l/usr/local/clang/include/absl/status/status.h'enable_if' is a clang extension [-Wgcc-compat]../src/s2/base/logging.ha:b
:67l21:
e:
  In file included from 
In file included from 143/usr/local/clang/include/absl/status/internal/status_internal.h      /usr/local/clang/include/absl/log/check.h | : | :29                       ^37:
 /usr/local/clang/include/absl/strings/cord.h 
:
: In file included from  655/usr/local/clang/include/absl/log/internal/check_impl.h :: 3921 : In file included from :
 ewarning: ns2/s2polyline.ccIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:/usr/local/clang/include/absl/log/internal/check_op.h
b18:l:
e  40In file included from _655:
../src/s2/s2polyline.hi | In file included from :f /usr/local/clang/include/absl/log/internal/nullstream.h33( ::
s 37In file included from t :
../src/s2/s1angle.hre/usr/local/clang/include/absl/strings/string_view.h:_x:28fp53:
ol:In file included from ri54../src/s2/s2point.hmc::ai 27ttwarning: :
_ type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from iC
../src/s2/s2coder.hnht:ear23nr   :
aI53In file included from lt | /usr/local/clang/include/absl/status/status.h:ec::ro67Ean:
ntsIn file included from sot/usr/local/clang/include/absl/status/internal/status_internal.hure:r(x29ecp:
CorIn file included from on /usr/local/clang/include/absl/strings/cord.hnss:stt94t r:
eCiIn file included from xon/usr/local/clang/include/absl/strings/internal/cordz_info.hprg:rd_31(*v:
s/usr/local/clang/include/absl/synchronization/mutex.h) i:,ae954 bw:"s 52clN:o_u nnlwarning: soltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tnS
enaxfu  perl954S tl | t r asptr "aic)tno,igr
cVd       i)| be
          ^ow      
o(| lc                                      ^o 
nCs/usr/local/clang/include/absl/base/nullability.hat:l 241clh:Va22ro*:i  danote: Pexpanded from macro 'absl_nonnull'bt
sr  Fl241u_ | nnu#cldt/usr/local/clang/include/absl/strings/internal/str_format/bind.hleif:aoin149bnl(:eec22  o:apn bwarning: )s s'enable_if' is a clang extension [-Wgcc-compat]t{l
 
_Cn        oon| 149ndn                                                     ^ | i u
t l i lo  /usr/local/clang/include/absl/base/nullability.hn _:*_N257 _o:aan23btn:stu lnote: rexpanded from macro 'absl_nullable'l_i
ln
ob  u      n257t| en |                      ^_u#
_ld(el( fecinn)ae;b
 la      eb_| s                                                   ^ilf
_(ns/usr/local/clang/include/absl/base/nullability.hutlr:l_a241fboIn file included from :lres2/s2polyline_simplifier.cc22m a::_tN_18i u:
nnote: lIn file included from texpanded from macro 'absl_nonnull'l../src/s2/s2polyline_simplifier.he
a:brl  63nea241l:

 | :In file included from       #:../src/s2/s1chord_angle.h| dE:                      ^en29
fs:
uiIn file included from nr../src/s2/s1angle.hee: C28oa:
bnIn file included from sst../src/s2/s2point.hle:x_27np:
roIn file included from (ns../src/s2/s2coder.h)n,:
u23      l:
l| In file included from                      ^ /usr/local/clang/include/absl/status/status.h
_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

      /usr/local/clang/include/absl/strings/cord.h| :                     ^667
:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static CIn file included from os2/s2polyline.ccr:/usr/local/clang/include/absl/strings/internal/str_format/bind.hd18 ::
A158In file included from d:../src/s2/s2polyline.hv22:a:33n :
cIn file included from warning: e../src/s2/s1angle.hA'enable_if' is a clang extension [-Wgcc-compat]:n
28d:
RIn file included from e../src/s2/s2point.ha  :d15827( | :
C In file included from  h../src/s2/s2coder.h a:r 23 I :
_t_In file included from aet/usr/local/clang/include/absl/status/status.htr:ra67ti:
bouIn file included from rt/usr/local/clang/include/absl/status/internal/status_internal.he*:_ _a(b(seln_anbolnen_uilfl( Viatl,i dsFiozrem_att Inm_pbly<tAersg)s;.
.      29.| >:
(                                           ^In file included from s
)/usr/local/clang/include/absl/strings/cord.h,: /usr/local/clang/include/absl/base/nullability.h94"::
b241In file included from a:/usr/local/clang/include/absl/strings/internal/cordz_info.hd22 ::f31o rnote: :
mexpanded from macro 'absl_nonnull'a/usr/local/clang/include/absl/synchronization/mutex.h
t:   956t241:r | a52p#:d" )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])e

f      i| n                       ^e956
  | a b sslt_antoincn ublolo l_ NCoansntuAlnld
C      a| l                     ^l
Func/usr/local/clang/include/absl/strings/internal/str_format/bind.ht:i162o:n22(:c owarning: n'enable_if' is a clang extension [-Wgcc-compat]s
t Co  nIn file included from 162ds2/s2polyline_simplifier.cc | i :t 18i :
 oIn file included from  n../src/s2/s2polyline_simplifier.h* :_ _63aa:
btIn file included from st../src/s2/s1chord_angle.hlr:i_b29nu:
toeIn file included from _n../src/s2/s1angle.hn_:(u(28el:
lnIn file included from a b../src/s2/s2point.hcl:e)_27i;:

fIn file included from (      V../src/s2/s2coder.h| a:l                                                   ^23i
:
dIn file included from F/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.ho::r24167m::
a22In file included from t:I/usr/local/clang/include/absl/status/internal/status_internal.h mnote: p:expanded from macro 'absl_nonnull'l29<
:
A  r/usr/local/clang/include/absl/strings/cord.hg241:s | .674#.:.d37e>:(f iwarning: sn)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],e
  a"  bba674sd | l  _f nsotnaontuirlmcalt   vt_oNiodrna pnAu"dl)vla
)n      c)| 
e                     ^      (
| C                     ^h
arIterator* absl_nonnuIn file included from ls2/s2polyline.ccl: 18i:
tIn file included from ,../src/s2/s2polyline.h :s33i:
zIn file included from e../src/s2/s1angle.h_:t28 :
nIn file included from _../src/s2/s2point.hb:y27t:
eIn file included from s../src/s2/s2coder.h):;23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                    ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22In file included from :In file included from /usr/local/clang/include/absl/strings/cord.h s2/s2polygon.cc::note: 9418expanded from macro 'absl_nonnull':
:

In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2polygon.h  ::2413134 | :
#:
/usr/local/clang/include/absl/synchronization/mutex.hdIn file included from e:../src/s2/mutable_s2shape_index.hf958i::n3350e:
: In file included from  a../src/s2/base/commandlineflags.hwarning: b:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s21
l:
_In file included from n/usr/local/clang/include/absl/flags/flag.h  o:n95842n | u:
 lIn file included from  l/usr/local/clang/include/absl/flags/internal/flag.hs :t_30Na:
otni/usr/local/clang/include/absl/base/call_once.hnc: u52bl:ol24o
:l        | warning: C                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a

stAn   d52C | asltldM:e:tahtoodm(icco<nusitn tC3o2n_dti>t*i oanb*s la_bnsoln_nnuolnln uCloln tcr)o;l
W      o| r                                                 ^d
(
/usr/local/clang/include/absl/base/nullability.h      :| 241                       ^:
22: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
In file included from e  s2/s2polyline_simplifier.ccf241:i | 18n#:
edIn file included from  e../src/s2/s2polyline_simplifier.haf:bi63sn:
le_In file included from  n../src/s2/s1chord_angle.hao:bn29sn:
lu_In file included from lnl../src/s2/s1angle.ho :n_28nN:
uoIn file included from ln../src/s2/s2point.hln: u27_l:
NlIn file included from o
n../src/s2/s2coder.h      n:| u23                     ^l:

lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2polygon.cc
:In file included from 18s2/s2polyline.cc:
  :In file included from 73018../src/s2/s2polygon.h | :
: In file included from  34../src/s2/s2polyline.h :
 :eIn file included from x33../src/s2/mutable_s2shape_index.hp:
l:In file included from i33c../src/s2/s1angle.hi:
t:In file included from  28C../src/s2/base/commandlineflags.h:
h:In file included from a21../src/s2/s2point.hr:
:RIn file included from a27n/usr/local/clang/include/absl/flags/flag.h:
g:eIn file included from (42c../src/s2/s2coder.ho:
:nIn file included from s23/usr/local/clang/include/absl/flags/internal/flag.ht:
: In file included from C30o/usr/local/clang/include/absl/status/status.h:
r:/usr/local/clang/include/absl/base/call_once.hd67:*:
 53aIn file included from b:/usr/local/clang/include/absl/status/internal/status_internal.hs22:l:29_ :
nIn file included from owarning: n/usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nu:
l94l:
    In file included from c53o/usr/local/clang/include/absl/strings/internal/cordz_info.hr | :d 31) :
  /usr/local/clang/include/absl/synchronization/mutex.h ::a 961bc:osr34ld::_ :(warning: octype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]no
rcde)   _961{f} | l
 a       g| s*                                   ^t 
aatb/usr/local/clang/include/absl/base/nullability.his:cl241 _:bn22oo:on nlnote: u expanded from macro 'absl_nonnull'lC
la   lf241ll | a#Bgdy)eR;ef
fi      (n| ce                     ^o 
anbss/usr/local/clang/include/absl/base/nullability.htl: _241nT:*o22n na:ub slnote: llexpanded from macro 'absl_nonnull'_ 
_nNo  no241nn | un#ludlel lf
si      en| l                     ^ef 
a)b s{l
_      n| o                                 ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
In file included from es2/s2polyline_simplifier.ccf:i18n:
eIn file included from  ../src/s2/s2polyline_simplifier.ha:b63s:
lIn file included from _../src/s2/s1chord_angle.hn:o29n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* abslIn file included from _s2/s2polyline.ccn:o18n:
nIn file included from u../src/s2/s2polyline.hl:l33 :
cIn file included from o../src/s2/s1angle.hr:d28_:
;In file included from 
../src/s2/s2point.h      :| 27                ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
In file included from 241In file included from s2/s2polygon.cc:/usr/local/clang/include/absl/status/status.h:22:18:67:
 :
In file included from In file included from note: ../src/s2/s2polygon.h/usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull'::
3429:
:
  In file included from In file included from 241../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/cord.h | :#:33d94e:
f:
iIn file included from In file included from n../src/s2/base/commandlineflags.h/usr/local/clang/include/absl/strings/internal/cordz_info.he:: 21a31:
b:
sIn file included from /usr/local/clang/include/absl/synchronization/mutex.hl/usr/local/clang/include/absl/flags/flag.h_:n:o975n42n::
u31lIn file included from :l/usr/local/clang/include/absl/flags/internal/flag.h  :warning: _30type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:
o
/usr/local/clang/include/absl/base/call_once.hn:n96u  l:l97533
 | :        |  warning:                      ^itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
n
line    96v | o i df rRieeanddC asltldb:a:cakt(oTm*i ca<busiln_tn3o2n_ntu>l*l  acbaslll_bnaocnkn)u lclo nbsats e{_
i      n| t                              ^e
rn/usr/local/clang/include/absl/base/nullability.ha:l241:::22C:o nnote: texpanded from macro 'absl_nonnull'r
ol  W241o | r#dd(e
f      i| n                                ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nIn file included from note: ns2/s2polyline_simplifier.ccexpanded from macro 'absl_nonnull'u:
l18l  :
 241In file included from _ | N../src/s2/s2polyline_simplifier.h#o:dn63en:
fuIn file included from ilnl../src/s2/s1chord_angle.h
e:       29| a                     ^:
b
In file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from nIn file included from /usr/local/clang/include/absl/status/status.hus2/s2polyline.cc:l:67l18:

:
In file included from       In file included from /usr/local/clang/include/absl/status/internal/status_internal.h| ../src/s2/s2polyline.h:                     ^:29
33:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s1angle.h::79528::
43In file included from :In file included from ../src/s2/s2point.h s2/s2polygon.cc::warning: 2718type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:

In file included from In file included from ../src/s2/s2coder.h../src/s2/s2polygon.h::  2334795:
:
 | In file included from In file included from  /usr/local/clang/include/absl/status/status.h../src/s2/mutable_s2shape_index.h :f:67r33i:
e:
nIn file included from In file included from d/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/commandlineflags.h ::v29o21:
i:
In file included from dIn file included from  /usr/local/clang/include/absl/strings/cord.hA/usr/local/clang/include/absl/flags/flag.h:b:s94l42:
F:
In file included from oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/flags/internal/flag.hm:a:31t30:
F:
/usr/local/clang/include/absl/synchronization/mutex.hl/usr/local/clang/include/absl/base/call_once.h:u:979s97h:(:a43b18s::l  :warning: warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C

or     d97979* |   | a  b  ss l t_ an otonincncu elb_olfo llc aAgo*rl wdaab,yss
lT_      rn| uoe                                          ^n(
ncuo/usr/local/clang/include/absl/base/nullability.hln:ls241 t:f 22lC:ao gnnote: )d;iexpanded from macro 'absl_nonnull'
t
      i|   o                 ^n241
* |  /usr/local/clang/include/absl/base/nullability.ha#:bd241se:lf_22ni:nu elnote: l expanded from macro 'absl_nonnull'aa
bbls  el241_)n |  o#n{nd uelrfle it_nNueor nnan btusrlllu_e
n;o       n}n| 
                     ^u      l
| l                                          ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
      note: | expanded from macro 'absl_nullable'                     ^

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2polyline.ccn:u18l:
lIn file included from  ../src/s2/s2polyline.h_:N33o:
In file included from nIn file included from s2/s2polyline_simplifier.ccn../src/s2/s1angle.hu:l:18l28:

:
In file included from       In file included from ../src/s2/s2polyline_simplifier.h| ../src/s2/s2point.h:                     ^:63
27:
:
In file included from In file included from ../src/s2/s1chord_angle.h../src/s2/s2coder.h::2923:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/status.h::2867:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/internal/status_internal.h::2729:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/cord.h::2394:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::6731:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/synchronization/mutex.h::291033:
:20/usr/local/clang/include/absl/strings/cord.h:: 898:warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]1033
 |   v  o898i | d   Wfariite(nMdu tceoxn*s ta bCsolr_dnzoInnnfuol*l  ambus)l _{n
u      l| l                   ^a
ble/usr/local/clang/include/absl/base/nullability.h :G241e:t22C:o rnote: dexpanded from macro 'absl_nonnull'z
In  f241o | F#odreTfeisntei nagb(s
l      _| n                          ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l257 :_23N:o nnote: nexpanded from macro 'absl_nullable'u
ll  
257       | | #                     ^d
efine absl_nullable _NulIn file included from ls2/s2polyline.cca:b18l:
eIn file included from 
../src/s2/s2polyline.h      :| 33                      ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polygon.cc:18:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41In file included from :In file included from s2/s2polyline_simplifier.cc s2/s2polyline.cc::warning: 1818type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:

In file included from In file included from ../src/s2/s2polyline_simplifier.h../src/s2/s2polyline.h::63  33:
153:
In file included from  | In file included from ../src/s2/s1chord_angle.h ../src/s2/s1angle.h :: 2928 :
:
CIn file included from In file included from a../src/s2/s1angle.h../src/s2/s2point.hl:l:28O27:
n:
In file included from cIn file included from ../src/s2/s2point.he../src/s2/s2coder.hI::m2723p:
:
lIn file included from In file included from (../src/s2/s2coder.h/usr/local/clang/include/absl/status/status.hs::t2367d:
:
:In file included from In file included from :/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/internal/status_internal.ha::t6729o:
:
mIn file included from In file included from i/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/cord.hc::<2994u:
:
iIn file included from n/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/internal/cordz_info.ht::3927312::
_43/usr/local/clang/include/absl/synchronization/mutex.ht::> 1069*warning: : type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]32a
:b swarning: l  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_927
n | o n   n1069 u  |  l l   b co o on l t  r W o al i,t 
 W       i | t                                         ^ h
D e /usr/local/clang/include/absl/base/nullability.ha d :l 241i :n e22 ( : MC uonote: trexpanded from macro 'absl_nonnull'ed
xR*e   p241a* | b #asdblsel__fnniuolnnlean bulaelbl sr lme_pun),;o
 n      an| bu                                          ^sl
ll: :_/usr/local/clang/include/absl/base/nullability.hTN:io257mn:en23 u:dl elnote: a
expanded from macro 'absl_nullable'd      
l| i                     ^  n
e257) |  #{d
e      f| i                               ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2polyline.cc::92918::
26In file included from :../src/s2/s2polyline.h :33warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
  In file included from 929../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.hv:o23i:
dIn file included from  /usr/local/clang/include/absl/status/status.hS:w67a:
pIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hI:n29l:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he:R94e:
pIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_1088n:o35n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 rh s1088) | ; 
       v| o                         ^i
d /usr/local/clang/include/absl/base/nullability.hE:n241a:b22l:e Dnote: eexpanded from macro 'absl_nonnull'b
ug  L241o | g#(dceofnisnte  cahbasrl*_ naobnsnlu_lnlu l_lNaobnlneu lnla
m      e| )                     ^;

      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abIn file included from ss2/s2polyline_simplifier.ccl:_18n:
uIn file included from l../src/s2/s2polyline_simplifier.hl:a63b:
lIn file included from e../src/s2/s1chord_angle.h :_29N:
uIn file included from l../src/s2/s1angle.hl:a28b:
lIn file included from e../src/s2/s2point.h
:      27| :
                      ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2polyline.cc
:18:
In file included from   ../src/s2/s2polyline.h932: | 33 :
 In file included from  ../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27c:
hIn file included from a../src/s2/s2coder.hr:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he: 94d:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.ha:(31):
 /usr/local/clang/include/absl/synchronization/mutex.hc:o1091n:s26t:; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                ^

/usr/local/clang/include/absl/base/nullability.h :1091257 | : 23 :b onote: oexpanded from macro 'absl_nullable'l
 W  a257i | t#Cdoemfmionne( Maubtselx_*n ualblsalb_lneo n_nNuullll ambultee
x      ,| 
                      ^      
|                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2polyline_simplifier.ccd:e18f:
iIn file included from n../src/s2/s2polyline_simplifier.he: 63a:
bIn file included from s../src/s2/s1chord_angle.hl:_29n:
oIn file included from n../src/s2/s1angle.h:n28u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
In file included from lIn file included from s2/s2polygon.cc
/usr/local/clang/include/absl/status/status.h:      :18| 67:
                     ^:
In file included from 
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/status/internal/status_internal.h::3429:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/cord.h::33934:
:In file included from 31../src/s2/base/commandlineflags.h:: 21:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/flags/flag.h
:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h  :93430In file included from  | :
s2/s2polyline.cc : /usr/local/clang/include/absl/base/call_once.h 18 :v:
o194iIn file included from d: ../src/s2/s2polyline.h31s:e:33t _:
warning: dIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a../src/s2/s1angle.h
t:a28(:
  cIn file included from o194../src/s2/s2point.hn | :si27nt:
l In file included from ic../src/s2/s2coder.hnh:ea23 r:
s*In file included from  ta/usr/local/clang/include/absl/status/status.hbds::l67:_:
nauIn file included from tl/usr/local/clang/include/absl/status/internal/status_internal.hlo:ma29ib:
lceIn file included from < /usr/local/clang/include/absl/strings/cord.hdu:ia94nt:
taIn file included from ,3 /usr/local/clang/include/absl/strings/internal/cordz_info.h2s:_i31zte:
_>/usr/local/clang/include/absl/synchronization/mutex.ht* : n1093)a:b;46s
:l       _| warning: n                              ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o

nn/usr/local/clang/include/absl/base/nullability.hu: l257l1093:  | 23C :o  nvnote: toexpanded from macro 'absl_nullable'ri
odl   WR257oe | r#dm(od
ev      fei| (n                              ^eb
 aasb/usr/local/clang/include/absl/base/nullability.hes:l__241in:nu22tl:le ranote: bnexpanded from macro 'absl_nonnull'lae
l :  _:N241Pue | rl#lTdhaerfbeliaed
nS      ey|                        ^an
bcshl*_ naobnsnlu_lnlo n_nNuolnln usIn file included from l)s2/s2polyline_simplifier.ccl;:

18            :
| | In file included from                      ^                                             ^../src/s2/s2polyline_simplifier.h

:63:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1chord_angle.h241::2922:
In file included from :In file included from s2/s2polygon.cc ../src/s2/s1angle.h::note: 1828expanded from macro 'absl_nonnull':
:

In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2point.h  ::2413427 | :
:
#In file included from In file included from d../src/s2/mutable_s2shape_index.h../src/s2/s2coder.he::f3323i:
:
nIn file included from In file included from e../src/s2/base/commandlineflags.h/usr/local/clang/include/absl/status/status.h ::a2167b:
:
sIn file included from In file included from l/usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/status/internal/status_internal.h_::n4229o:
:
nIn file included from /usr/local/clang/include/absl/strings/cord.hn/usr/local/clang/include/absl/flags/internal/flag.h:u:935l30:l:
11 /usr/local/clang/include/absl/base/call_once.h:_: N195warning: o:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n16
n:u lwarning:   ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]935

 |        |                         ^ 195 
 | c h a r *o nacbes_lf_lnaogn*n ualbls ls_ento_ndnautlal( sfilzaeg_)t  {n
)      ;|                 ^ 
///usr/local/clang/include/absl/base/nullability.h :W241r:i22t:e  note: dexpanded from macro 'absl_nonnull'a
ta   241t | o# dtehfei nree saublstl
_      n| o          ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2polygon.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h34::
29In file included from :
../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/strings/cord.h33::
937In file included from :../src/s2/base/commandlineflags.h35::21 :
In file included from warning: /usr/local/clang/include/absl/flags/flag.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:  30937:
 | /usr/local/clang/include/absl/base/call_once.h : 200 : 40a:In file included from b s2/s2polyline.ccs:warning: l18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::

:In file included from c../src/s2/s2polyline.ho:r  33d200:
_ | In file included from iv../src/s2/s1angle.hno:ti28ed:
r nIn file included from Lao../src/s2/s2point.hlw::L:27eC:
voerIn file included from dl../src/s2/s2coder.hRCe:apl23l*O:
 nIn file included from ac/usr/local/clang/include/absl/status/status.hbes:(l67a_:
bnIn file included from su/usr/local/clang/include/absl/status/internal/status_internal.hll::l29:a:
obIn file included from lne/usr/local/clang/include/absl/strings/cord.hc :ter94_e:
efIn file included from l(/usr/local/clang/include/absl/strings/internal/cordz_info.h)a :gc*31o n:
as/usr/local/clang/include/absl/synchronization/mutex.hbt:s;1109l
:_      34n| :o                                  ^ n
warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u/usr/local/clang/include/absl/base/nullability.h
l:l257 : f231109l: | a  gnote:  ,expanded from macro 'absl_nullable'e x
Cpa  ll257li | ac#bdilete f&Mi&un tefenx ,La
ob      csk| lM                                       ^_a
nyubl/usr/local/clang/include/absl/base/nullability.hle:(a241Mb:ult22ee:x  *_note:  Nexpanded from macro 'absl_nonnull'ual
bls  alb241l_ | en#
ud      le| lf                      ^ia
nbel ea bmsul)_
n      o| n                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257_In file included from :Ns2/s2polyline_simplifier.cc23o::n18 n:
note: uIn file included from expanded from macro 'absl_nullable'l../src/s2/s2polyline_simplifier.h
l:
63        :
257| In file included from  |                      ^../src/s2/s1chord_angle.h#
:d29e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/status/status.he: 67_:
NIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
b/usr/local/clang/include/absl/strings/cord.hl:e938
:      35| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::In file included from Cs2/s2polyline.cco:r18d:
RIn file included from e../src/s2/s2polyline.hp:*33 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :a23s:
_In file included from t/usr/local/clang/include/absl/status/status.hr:e67e:
(In file included from )/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht:;94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                  ^:
31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::2411117::2234::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241 |  #1117d | e f ienxep laibcsilt_ nMountneuxlLlo c_kNMoanynbuel(lM
u      t| e                     ^x
* absl_nullablIn file included from es2/s2polyline_simplifier.cc :m18u:
,In file included from  ../src/s2/s2polyline_simplifier.hc:o63n:
sIn file included from t../src/s2/s1chord_angle.h :C29o:
nIn file included from d../src/s2/s1angle.hi:t28i:
oIn file included from n../src/s2/s2point.h&: 27c:
oIn file included from n../src/s2/s2coder.hd:)23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                 ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::25729::
23:/usr/local/clang/include/absl/strings/cord.h :939note: :expanded from macro 'absl_nullable'17
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de  f939i | n e   a bcsoln_sntu lclhaabrl*e  a_bNsull_lnaobnlneu
l      l|                        ^a
s_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2polyline.ccn:u18l:
lIn file included from  ../src/s2/s2polyline.h_:N33o:
nIn file included from n../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2polyline_simplifier.cc1132::1810:
:In file included from  ../src/s2/s2polyline_simplifier.h:warning: 63type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1chord_angle.h:29 :
1132In file included from  | ../src/s2/s1angle.h : 28M:
uIn file included from t../src/s2/s2point.he:x27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
c/usr/local/clang/include/absl/strings/cord.ho:n941s:t35 :m uwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension];

      |          ^  
941 |  /usr/local/clang/include/absl/base/nullability.h : 257 :a23b:s lnote: :expanded from macro 'absl_nullable':
co  r257d | _#idnetfeirnnea la:b:sClo_rnduRlelpa*b laeb s_lN_unlullalbalbel
e       | c                      ^l
ear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extIn file included from rs2/s2polyline.cca:)18;:

In file included from       ../src/s2/s2polyline.h| :                 ^33
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1146 :_7N:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll
      |                       ^1146
 |       this)) ABSL_EXIn file included from Cs2/s2polyline_simplifier.ccL:U18S:
IIn file included from V../src/s2/s2polyline_simplifier.hE:_63L:
OIn file included from C../src/s2/s1chord_angle.hK:_29F:
UIn file included from N../src/s2/s1angle.hC:T28I:
OIn file included from N../src/s2/s2point.h(:m27u:
)In file included from 
../src/s2/s2coder.h      :| 23      ^~~~:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2polyline_measures.cc
:      18|                      ^
:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/s2polyline_simplifier.cc::6718:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2polyline_simplifier.h::2963:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s1chord_angle.h::8229:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h../src/s2/s2point.h::3227:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/str_format.h::23115:
:In file included from 52/usr/local/clang/include/absl/status/status.h:: 67:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:972:31  :115  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      972c | o n s t  vsotird_ fEomrpmlaatc_eiTnrteeer(nCaolr:d:RPeapr*s eadbFsolr_mnaotnBnauslel*  raebps,l _cnoonnsntu lIln lpicn)e
D      a| t                                                   ^a
& pa/usr/local/clang/include/absl/base/nullability.hr:e241n:t22,:
       | note:                               ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h:  241241: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fnionnen ualbls l__Nnoonnnnuullll
       _| N                     ^o
nnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicIn file included from is2/s2polyline_simplifier.cct: 18R:
eIn file included from l../src/s2/s2polyline_simplifier.he:a63s:
aIn file included from b../src/s2/s1chord_angle.hl:e29M:
uIn file included from t../src/s2/s1angle.he:x28L:
oIn file included from c../src/s2/s2point.hk:(27M:
uIn file included from t../src/s2/s2coder.he:x23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l978 :m36u:) 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                      ^

  /usr/local/clang/include/absl/base/nullability.h978: | 241 : 22 :  vnote: oexpanded from macro 'absl_nonnull'i
d   C241o | m#mdietfTirneee (acbosnls_tn oCnonrudlRle p_*N oanbnsull_ln
u      l| l                     ^a
ble old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | In file included from #s2/s2polyline_measures.ccd:e18f:
iIn file included from n../src/s2/s2polyline_measures.he: 29a:
In file included from bIn file included from s2/s2polyline.ccs../src/s2/s1angle.h:l:18_28:
n:
In file included from uIn file included from ../src/s2/s2polyline.hl../src/s2/s2point.h:l:33a27:
b:
In file included from lIn file included from ../src/s2/s1angle.he../src/s2/s2coder.h: :28_23:
N:
In file included from uIn file included from ../src/s2/s2point.hl/usr/local/clang/include/absl/status/status.h:l:27a67:
b:
In file included from lIn file included from ../src/s2/s2coder.he/usr/local/clang/include/absl/status/internal/status_internal.h:
:23      29:
| :
In file included from                       ^In file included from /usr/local/clang/include/absl/status/status.h
/usr/local/clang/include/absl/strings/cord.h::6782:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from ::s2/s2polyline_simplifier.cc2923::
:
18In file included from In file included from :
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/crc/crc32c.hIn file included from ::../src/s2/s2polyline_simplifier.h9432::
:
63In file included from :
/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from ::../src/s2/s1chord_angle.h15531:::
2936/usr/local/clang/include/absl/synchronization/mutex.h:
::In file included from  1158../src/s2/s1angle.h:warning: :53type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28:
:
 In file included from ../src/s2/s2point.h  warning: :155'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]27 | 
:
 In file included from  ../src/s2/s2coder.h e:x115823p | :
 lIn file included from  i/usr/local/clang/include/absl/status/status.h c: i67 t:
  In file included from FM/usr/local/clang/include/absl/status/internal/status_internal.huo:tr29mea:
x/usr/local/clang/include/absl/strings/cord.ht&:C 979mo:uu30 n:At Cwarning: aBptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tS
Lu_rIe  (Ni979Tn | Et R*  Na bA Ls l__ An oT nT Rn Iu B lU Tl  Ep )_ C  :A  pP T_ U(CRopE)r D{d}_R
BeY      p(*| t                                    ^ha
ibss/usr/local/clang/include/absl/base/nullability.h)l,:_
241n      :o| 22n                                                    ^~~~:n
u lnote: lexpanded from macro 'absl_nonnull' 
re  p241, |  #cdoenfsitn eC oarbdszlU_pndoantneuSlclo p_eN&o nsncuolple
,      
|                            ^| 
                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2polyline_measures.ccl: 18_:
NIn file included from o../src/s2/s2polyline_measures.hn:n29u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :s2/s2polyline_simplifier.cc164::188:
:In file included from  ../src/s2/s2polyline_simplifier.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]63
:
In file included from ../src/s2/s1chord_angle.h:  29164:
 | In file included from  ../src/s2/s1angle.h :i28n:
tIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from U/usr/local/clang/include/absl/status/internal/status_internal.hn:u29s:
e/usr/local/clang/include/absl/strings/cord.hd:(982): 39{:  rwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
urn   982p | _ ;   } 
v      o| i       ^d
 A/usr/local/clang/include/absl/base/nullability.hp:p241e:n22d:T rnote: eexpanded from macro 'absl_nonnull'e
To  I241n | l#idneefdi(nCeo radbRselp_*n oanbnsull_ln o_nNnounlnlu ltlr
e      e| ,                     ^

      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2polyline_measures.ccd:e18f:
iIn file included from n../src/s2/s2polyline_measures.he/usr/local/clang/include/absl/synchronization/mutex.h: :29a1166b:
:sIn file included from 39l../src/s2/s1angle.h:_: n28warning: o:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nIn file included from 
n../src/s2/s2point.hu:l 27l1166:
  | _In file included from  N ../src/s2/s2coder.hoen:xn23pu:
lliIn file included from lc/usr/local/clang/include/absl/status/status.h
i:      t67|                       ^:
R
eIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he:a29s:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e82M:
uIn file included from In file included from ts2/s2polyline_simplifier.cce/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:x:18L23:
o:
In file included from cIn file included from ../src/s2/s2polyline_simplifier.hk/usr/local/clang/include/absl/crc/crc32c.h:(:63M32:
u:
In file included from t/usr/local/clang/include/absl/strings/str_format.h../src/s2/s1chord_angle.he::x16529*::
 8In file included from a:../src/s2/s1angle.hb :s28lwarning: :
_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from n
../src/s2/s2point.ho:  n27n165:
u | In file included from  l../src/s2/s2coder.hl :i 23nm:
tu*In file included from  ,/usr/local/clang/include/absl/status/status.h a:cb67so:
nlIn file included from s_/usr/local/clang/include/absl/status/internal/status_internal.hnt:o n29nCu:
ol/usr/local/clang/include/absl/strings/cord.hln :pd_984i;:t
36i      :o|  n       ^warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 
c/usr/local/clang/include/absl/base/nullability.ho:n  d241984: | 22 :   note:  expanded from macro 'absl_nonnull'v
)o  
i241      d | | #                                      ^ d
eAf/usr/local/clang/include/absl/base/nullability.hpi:pn241ee :na22bds:Tl _note: nrexpanded from macro 'absl_nonnull'eo
enT  on241Tu | r#edlee(flC i_onNroend Ranebups*ll l_
anb      osn| ln                     ^u_l
nlo n_nNuolnln utlrle
e      ,|                       ^M
ethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2polyline.ccn:n18u:
lIn file included from l../src/s2/s2polyline.h
:      33| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2/s2polyline_simplifier.cc:
:In file included from 18/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2polyline_simplifier.h:
:63/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1179../src/s2/s1chord_angle.h::1029::
 In file included from ../src/s2/s1angle.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h: 271179:
 | In file included from  ../src/s2/s2coder.h :M23u:
tIn file included from e/usr/local/clang/include/absl/status/status.hx:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.hu:l985l:a30b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
u_;
        985|  |          ^ 
  /usr/local/clang/include/absl/base/nullability.h In file included from :vs2/s2polyline_measures.cc257o::i1823d:
: In file included from  A../src/s2/s2polyline_measures.hnote: pexpanded from macro 'absl_nullable':p
e29n  d:
257TIn file included from  | r../src/s2/s1angle.h#ed:ee28(f:
CiIn file included from onr../src/s2/s2point.hed: R27aeb:
psIn file included from *l _../src/s2/s2coder.han:bu23sll:
l_In file included from anb/usr/local/clang/include/absl/status/status.holn:en67 u:
_lIn file included from Nl/usr/local/clang/include/absl/status/internal/status_internal.hu l:tl29rae:
beIn file included from l,e /usr/local/clang/include/absl/strings/cord.h
M:      e82| t                      ^:
h
oIn file included from d/usr/local/clang/include/absl/crc/internal/crc_cord_state.hI:d23e:
nIn file included from t/usr/local/clang/include/absl/crc/crc32c.hi:f32i:
er/usr/local/clang/include/absl/strings/str_format.h :m380e:t43h:o dwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                              ^
  380/usr/local/clang/include/absl/base/nullability.h | :s241t:d22::: snote: texpanded from macro 'absl_nonnull'r
in  g241& |  #SdterfAipnpee nadbFsolr_mnaotn(nsutldl :_:Nsotnrniunlgl*
       a| b                     ^s
l_nonnull dst,
      | In file included from                                           ^s2/s2polyline_simplifier.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline_simplifier.h::24163::
22In file included from :../src/s2/s1chord_angle.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 986_:N40o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
        | 986                     ^ | 
    void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrepIn file included from es2/s2polyline_measures.ccn:d18T:
rIn file included from e../src/s2/s2polyline_measures.he:T29o:
TIn file included from r../src/s2/s1angle.he:e28(:
CIn file included from o../src/s2/s2point.hr:d27R:
eIn file included from p../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.ht:r82e:
eIn file included from ,/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :M23e:
tIn file included from In file included from hs2/s2polyline.cco/usr/local/clang/include/absl/crc/crc32c.h:d:18I32:
d:
In file included from e../src/s2/s2polyline.hn/usr/local/clang/include/absl/strings/str_format.h:t:33i440:
f:In file included from i24../src/s2/s1angle.he:r  warning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
thod  )440; | 
i      n| t                                    ^ 
FP/usr/local/clang/include/absl/base/nullability.hr:i241n:t22F:( snote: texpanded from macro 'absl_nonnull'd
::  F241I | L#Ed*e faibnsel _anbosnln_unloln nouultlp u_tN,o: n28cn:
uoIn file included from ln../src/s2/s2point.hsl:
t27       F:
| oIn file included from r                     ^../src/s2/s2coder.hm
:a23t:
SIn file included from p/usr/local/clang/include/absl/status/status.he:c67<:
AIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hgIn file included from :ss2/s2polyline_simplifier.cc29.::
.18In file included from .:
/usr/local/clang/include/absl/strings/cord.h>In file included from &:../src/s2/s2polyline_simplifier.h 94:f:
63oIn file included from r:
m/usr/local/clang/include/absl/strings/internal/cordz_info.haIn file included from t:,../src/s2/s1chord_angle.h31
::
      29/usr/local/clang/include/absl/synchronization/mutex.h| :
:                       ^In file included from 1212
../src/s2/s1angle.h::5228/usr/local/clang/include/absl/base/nullability.h::
: In file included from 241warning: ../src/s2/s2point.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:22
27::
 In file included from  ../src/s2/s2coder.hnote: 1212expanded from macro 'absl_nonnull': | 
23b:
  oIn file included from 241o/usr/local/clang/include/absl/status/status.hl | :# d67eC:
foiIn file included from nn/usr/local/clang/include/absl/status/internal/status_internal.hed: ia29bts:
i/usr/local/clang/include/absl/strings/cord.hlo_:nn989:o::n31Cn:au lslwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] A_
Nnod  nCn989au | lll 
l M       e|  t                     ^vh
ooidd( cPornespte nCdoTnrdeiet(iCoonr*d Raebps*l _anbosnln_unloln ncu)l l{ 
t      r| e                                                   ^e
, M/usr/local/clang/include/absl/base/nullability.he:t241h:o22d:I In file included from dnote: s2/s2polyline_measures.cceexpanded from macro 'absl_nonnull':n
t18i  f:
241iIn file included from  | e../src/s2/s2polyline_measures.h#r:d e29mf:
eitIn file included from nh../src/s2/s1angle.heo :da)28b;s:

lIn file included from       _../src/s2/s2point.h| n                              ^:o
27n:
/usr/local/clang/include/absl/base/nullability.hnIn file included from :u../src/s2/s2coder.h241l::l2322 :
:_In file included from  N/usr/local/clang/include/absl/status/status.hnote: o:expanded from macro 'absl_nonnull'n67
n:
  uIn file included from 241l/usr/local/clang/include/absl/status/internal/status_internal.h | l:#
29d      e:
| f                     ^In file included from i
/usr/local/clang/include/absl/strings/cord.hn:e82 :
aIn file included from b/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/crc/crc32c.hn:n32u:
l/usr/local/clang/include/absl/strings/str_format.hl: 469_:N20o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^469
 | int SNPrintF(char* absl_nonnuIn file included from lIn file included from s2/s2polyline_simplifier.ccls2/s2polyline.cc ::o1818u:
t:
In file included from pIn file included from u../src/s2/s2polyline_simplifier.h../src/s2/s2polyline.ht::,6333 :
s:
In file included from tIn file included from ../src/s2/s1chord_angle.hd../src/s2/s1angle.h::::29s28i:
:
zIn file included from In file included from e../src/s2/s1angle.h_../src/s2/s2point.h:t: 28s27i:
z:
In file included from eIn file included from ,../src/s2/s2point.h../src/s2/s2coder.h
::      2723| :
:
                   ^In file included from In file included from 
../src/s2/s2coder.h/usr/local/clang/include/absl/status/status.h::/usr/local/clang/include/absl/base/nullability.h2367::
:
241In file included from In file included from :/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/internal/status_internal.h22:::6729 :
:
In file included from note: In file included from /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h:
:2994:
  /usr/local/clang/include/absl/strings/cord.h:
241:In file included from  | 994/usr/local/clang/include/absl/strings/internal/cordz_info.h#:d:e3031f:i:
n ewarning:  /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:
b1221s:  l54_994n:o | n nwarning: u type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l 
l   _ Nv1221oo | ibndo nouClolp
y      T| o                     ^(
std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_ln oCnonnudlilt i_oNno:n:nCualslt
A      n| d                     ^C
allFunction(const CoIn file included from ns2/s2polyline_measures.ccd:i18In file included from t:
s2/s2polyline_simplifier.cciIn file included from :o../src/s2/s2polyline_measures.h18n::
*29In file included from  :
../src/s2/s2polyline_simplifier.haIn file included from :b../src/s2/s1angle.h63s::
l28In file included from _:
../src/s2/s1chord_angle.hnIn file included from :o../src/s2/s2point.h29n::
n27In file included from u:
../src/s2/s1angle.hlIn file included from :l../src/s2/s2coder.h28 ::
c23In file included from ):
../src/s2/s2point.h In file included from :{/usr/local/clang/include/absl/status/status.h27
::
      67In file included from | :
../src/s2/s2coder.h                                                     ^In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h23::
29/usr/local/clang/include/absl/base/nullability.hIn file included from :
:/usr/local/clang/include/absl/status/status.hIn file included from 241:/usr/local/clang/include/absl/strings/cord.h:67:22:
82:In file included from :
 /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from note: :/usr/local/clang/include/absl/crc/internal/crc_cord_state.hexpanded from macro 'absl_nonnull'29:
:
23/usr/local/clang/include/absl/strings/cord.h:
  :In file included from 241999/usr/local/clang/include/absl/crc/crc32c.h | :#:28d32:e:
 f/usr/local/clang/include/absl/strings/str_format.hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:n
e503 :  a20999b: | s  l _ nwarning:  ovtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]non
iudl   lC 503o_p | Ny oT nFoonrAmurlarlta
yR      (a| wcS                     ^ih
nakr(*T *a basbls_ln_onnonnunlull ld srta)w )c o n/s/t ;N
O      L| I                           ^N
T
/usr/local/clang/include/absl/base/nullability.h      :| 241                   ^:
22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22  :241  | In file included from note: #expanded from macro 'absl_nonnull's2/s2polyline.ccd
:e18  f:
i241In file included from n | ../src/s2/s2polyline.he#:d 33eaf:
biIn file included from sn../src/s2/s1angle.hl:_e28 n:
aobIn file included from sn../src/s2/s2point.hln:_un27oln:
nluIn file included from l l../src/s2/s2coder.h _:N_23Noo:
nnIn file included from nn/usr/local/clang/include/absl/status/status.huu:ll67ll:


In file included from             /usr/local/clang/include/absl/status/internal/status_internal.h| |                      ^:                     ^
29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonIn file included from ns2/s2polyline_simplifier.ccu:l18l:
 In file included from f../src/s2/s2polyline_simplifier.hu:n63c:
)In file included from (../src/s2/s1chord_angle.hT:*29 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from i../src/s2/s2coder.hl:i23t:
yIn file included from _/usr/local/clang/include/absl/status/status.hu:n67k:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hw:n29):
,/usr/local/clang/include/absl/strings/cord.h
:      1012| :           ^37
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:  note: 1012expanded from macro 'absl_nonnull' | 
     241  | a#bdself:i:nceo radb_siln_tneornnnaull:l: C_oNrodnznIunlflo
*       | a                     ^b
sl_nullaIn file included from bs2/s2polyline.ccl:e18 :
cIn file included from o../src/s2/s2polyline.hr:d33z:
_In file included from i../src/s2/s1angle.hn:f28o:
(In file included from )../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.ht: 23{:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                    ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29257:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h257: | 1230#:d34e:f iwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
 ab s1230l | _ n u l lbaobolle  (_*Naublslla_bnloen
n      u| l                      ^l
 func)(T* absl_nullabIn file included from is2/s2polyline_simplifier.ccl:i18t:
yIn file included from _../src/s2/s2polyline_simplifier.hu:n63k:
nIn file included from o../src/s2/s1chord_angle.hw:n29):
,In file included from 
../src/s2/s1angle.h      :| 28                                 ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
289In file included from :../src/s2/s2coder.h34::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullability_unknown':
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :28929 | :
#/usr/local/clang/include/absl/strings/cord.hd:e1017f:i51n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n u1017l | l a b i lviotiyd_ usnektn_ocwonr d_zN_uilnlf_ou(ncsopredc_iifniteedr
n      a| l                                 ^:
:CordzInfo* absIn file included from ls2/s2polyline.cc_:n18o:
nIn file included from n../src/s2/s2polyline.hu:l33l:
 In file included from c../src/s2/s1angle.ho:r28d:
zIn file included from _../src/s2/s2point.hi:n27f:
oIn file included from )../src/s2/s2coder.h :{23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                                  ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
241/usr/local/clang/include/absl/synchronization/mutex.h | :#1231d:e8f:i nwarning: etype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
ab s1231l | _ n o n nTu*l la b_sNlo_nnnuulllla
b      i| l                     ^i
ty_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static booIn file included from ls2/s2polyline.cc :G18e:
tIn file included from F../src/s2/s2polyline.hl:a33t:
AIn file included from u../src/s2/s1angle.hx:(28a:
bIn file included from s../src/s2/s2point.hl::27::
cIn file included from o../src/s2/s2coder.hr:d23_:
iIn file included from n/usr/local/clang/include/absl/status/status.ht:e67r:
nIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl::29::
CIn file included from o/usr/local/clang/include/absl/strings/cord.hr:d94R:
eIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.h*: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l1241_:n12o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l re p1241, | 
        |                                                         ^ 
boo/usr/local/clang/include/absl/base/nullability.hl: 241(:*22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle ffiunnec )a(bTs*l _anbosnln_unlull l_aNboinlniutlyl_
u      n| k                     ^n
own),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2polyline_simplifier.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2polyline_simplifier.h:  63241:
 | In file included from #../src/s2/s1chord_angle.hd:e29f:
iIn file included from n../src/s2/s1angle.he: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

/usr/local/clang/include/absl/strings/cord.h      :| 1050                     ^:
45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline.cc:18 :
1050In file included from  | ../src/s2/s2polyline.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from :/usr/local/clang/include/absl/strings/cord.h::s94t:
rIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:g31_:
v/usr/local/clang/include/absl/synchronization/mutex.hi:e1241w:*34 :a bwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
_no n1241n | u l l   fbroaoglm e(n*ta)b;s
l      _| n                                            ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22f:u nnote: cexpanded from macro 'absl_nonnull')
(T  *241  | a#bdself_innuel laabbsill_intoyn_nuunlkln o_wNno)n,n
u      l| l                                 ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nuIn file included from ls2/s2polyline_simplifier.ccl:a18b:
iIn file included from l../src/s2/s2polyline_simplifier.hi:t63y:
_In file included from u../src/s2/s1chord_angle.hn:k29n:
oIn file included from w../src/s2/s1angle.hn: 28_:
NIn file included from u../src/s2/s2point.hl:l27_:
uIn file included from n../src/s2/s2coder.hs:p23e:
cIn file included from i/usr/local/clang/include/absl/status/status.hf:i67e:
dIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                 ^:

/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl:In file included from :s2/s2polyline.ccc:o18r:
dIn file included from _../src/s2/s2polyline.hi:n33t:
eIn file included from r../src/s2/s1angle.hn:a28l:
:In file included from :../src/s2/s2point.hC:o27r:
dIn file included from R../src/s2/s2coder.he:p23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94r:
eIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.h,:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                    ^:
1242:44/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
 1242 |    241  |  # dteyfpiennea maeb salb_snlo:n:ntuylple __iNdoennntuiltly
<      T| >                     ^:
:type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 289s2/s2polyline_simplifier.cc::3418::
 In file included from ../src/s2/s2polyline_simplifier.hnote: :expanded from macro 'absl_nullability_unknown'63
:
In file included from ../src/s2/s1chord_angle.h:  29289:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
iIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hi:t29y:
_/usr/local/clang/include/absl/strings/cord.hu:n1061k:n34o:w nwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nul l1061_ | u n svpoeicdi fCioepdy
T      o| A                                 ^r
raySlowPath(char* absl_nonnull dst) const;
      |                                  ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polyline.cc::24118::
22In file included from :../src/s2/s2polyline.h :33note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :_94N:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h
:      1249| :                     ^8
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull obIn file included from js2/s2polyline_measures.cce:c18t:
,In file included from 
../src/s2/s2polyline_measures.h      :| 29       ^:

In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l82_:
nIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h :_32N:
o/usr/local/clang/include/absl/strings/str_format.hn:n860u:lIn file included from 43ls2/s2polyline_simplifier.cc
::       18| :
                     ^warning: In file included from 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2polyline_simplifier.h
:63:
In file included from ../src/s2/s1chord_angle.h  :86029 | :
 In file included from  ../src/s2/s1angle.hf:r28In file included from i:
s2/s2polyline.cceIn file included from n:d../src/s2/s2point.h 18v::
o27In file included from i:
d../src/s2/s2polyline.hIn file included from  :A../src/s2/s2coder.hb33:s:
l23FIn file included from :
o../src/s2/s1angle.hIn file included from r:m/usr/local/clang/include/absl/status/status.ha28:t:
F67In file included from l:
../src/s2/s2point.huIn file included from s:/usr/local/clang/include/absl/status/internal/status_internal.hh27(:F:
o29In file included from r:
../src/s2/s2coder.hm/usr/local/clang/include/absl/strings/cord.ha:t:S23i1078:
n:In file included from k33*/usr/local/clang/include/absl/status/status.h: : awarning: b67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:

lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.h n:o107829n | n:
u In file included from l /usr/local/clang/include/absl/strings/cord.hal: b94ss:
liIn file included from n:k/usr/local/clang/include/absl/strings/internal/cordz_info.h,::
c31      o:
r| /usr/local/clang/include/absl/synchronization/mutex.h                                          ^d:
_1250i:n/usr/local/clang/include/absl/base/nullability.h43t::e241 r:warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22a
l::  :1250Cnote:  | oexpanded from macro 'absl_nonnull' r 
d R   e241bpo | *#od elfa bi(snalbe_ sanblos:n:nltuyl_plen _ToiadnkneenuRtelilpt( y)< Tc_>oN:onn:nsuttyl&lp
;e      
:|                            ^:| *
                                ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 m  e241t | h#odde)f(i)n)e
       a| b                                          ^s
l_/usr/local/clang/include/absl/base/nullability.hn:oIn file included from 241ns2/s2polyline_measures.cc:n:22u18:l:
 lIn file included from note:  ../src/s2/s2polyline_measures.hexpanded from macro 'absl_nonnull'_:
N29o  n:
241nIn file included from  | u../src/s2/s1angle.h#ld:le28
f:
      iIn file included from | n                     ^../src/s2/s2point.he
: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2polyline_simplifier.cc_::N2918o:
:
nIn file included from In file included from n/usr/local/clang/include/absl/strings/cord.h../src/s2/s2polyline_simplifier.hu::l8263l:
:

In file included from In file included from       /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/s1chord_angle.h| ::                     ^2329
:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h../src/s2/s1angle.h::3228:
:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :../src/s2/s2point.h867::2760:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h867: | 29 :
 /usr/local/clang/include/absl/strings/cord.he:x1079p:l33i:c iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
For m1079a | t S ianbks(ls:t:rcIn file included from _ofs2/s2polyline.ccorr:md18_a:
itIn file included from n_../src/s2/s2polyline.hti:net33re:
nrIn file included from an../src/s2/s1angle.hal::l28:::
C:In file included from Foo../src/s2/s2point.hrrm:adt27SRi:
neIn file included from kpI../src/s2/s2coder.h*: m23ap:
blIn file included from *s/usr/local/clang/include/absl/status/status.hl :_a67bns:
loIn file included from _n/usr/local/clang/include/absl/status/internal/status_internal.hnn:oun29ln:
ullIn file included from l  /usr/local/clang/include/absl/strings/cord.hsT:a)94
k:
e      In file included from R| /usr/local/clang/include/absl/strings/internal/cordz_info.h                                                           ^e:p
31(:
)/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h &::&2411259;::
2214      ::|                                   ^note: 
expanded from macro 'absl_nonnull'warning: /usr/local/clang/include/absl/base/nullability.h
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241  : 241221259 | : | # d enote: f iexpanded from macro 'absl_nonnull' n
e    ca241ob | sn#ls_dntoen nfTiu*nl le a_ Nboasbnlnsu_llln
_on      no| nnu                     ^nlu
ll lo b_jNeocntn,u
l      l| 
             ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2polyline_measures.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2polyline_measures.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      82| :
                     ^In file included from 
/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 869s2/s2polyline.cc | : 18 :
sIn file included from t../src/s2/s2polyline.hr:_33f:
oIn file included from r../src/s2/s1angle.hm:a28t:
_In file included from i../src/s2/s2point.hn:t27e:
rIn file included from n../src/s2/s2coder.ha:In file included from l23:s2/s2polyline_simplifier.cc:
::FIn file included from 18o/usr/local/clang/include/absl/status/status.h:
r:mIn file included from a67t../src/s2/s2polyline_simplifier.hS:
i:In file included from n63/usr/local/clang/include/absl/status/internal/status_internal.hk:
:IIn file included from m29p../src/s2/s1chord_angle.hl:
*:In file included from  29/usr/local/clang/include/absl/strings/cord.ha:
:bIn file included from 94s../src/s2/s1angle.h:
l:_In file included from n28o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:
n:In file included from u31l../src/s2/s2point.hl:
:/usr/local/clang/include/absl/synchronization/mutex.h 27s:i:
1260nIn file included from :k../src/s2/s2coder.h_43:;:
23       :
warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                       ^In file included from 

/usr/local/clang/include/absl/status/status.h:67 /usr/local/clang/include/absl/base/nullability.h:
1260:In file included from  | 241/usr/local/clang/include/absl/status/internal/status_internal.h :: 2229 ::
  b/usr/local/clang/include/absl/strings/cord.hnote: o:expanded from macro 'absl_nonnull'o1116
l: 37  (:241a b | swarning: #ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d:e
:ftiy pn1116ee  | a_b si dcelo_nnnotnsnittu lycl<rTc >_:_i:nNttoynepnrenu:lal:l
*:       :a| C                     ^brs
clC_onrodnSntualtle *m eatbhsold_)n(u)l
l      a| b                                          ^l
e /usr/local/clang/include/absl/base/nullability.hM:a241y:b22e:G enote: texpanded from macro 'absl_nonnull'C
rc  C241o | r#ddSetfaitnee( )a bcsoln_snto;n
n      u| l                                    ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o257n:n23u:l lnote: 
expanded from macro 'absl_nullable'      
|                      ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2polyline.ccs2/s2polyline_simplifier.cc::1818:
:
In file included from In file included from ../src/s2/s2polyline.h../src/s2/s2polyline_simplifier.h::3363:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1chord_angle.h::2829:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2327:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2coder.h::6723:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/status/status.h::2967:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/internal/status_internal.h::9429:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::112031::
30:/usr/local/clang/include/absl/synchronization/mutex.h :1279warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]35
: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1120
 |   v o1279i | dv oCiodp yRTeogAirsrtaeyrIMmuptle(xcPhraorf*i laebrs(lv_onionnull dst) conds t(;*
a      b| s                             ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: fexpanded from macro 'absl_nonnull'n
)(  i241n | t#6d4e_fti nwea iatb_scly_cnloensn)u)l;l
       _| N                                  ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2polygon.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2polygon.h25::
34In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/mutable_s2shape_index.h36::
33In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/base/commandlineflags.h36::
21In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/flags/flag.h21::
110In file included from :/usr/local/clang/include/absl/log/check.h29::37 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :110180 | :v42o:i dwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
etFlag  (180a | bAsBlS:L:_FAlTaTgR<ITB>U*T Ea_bPsUlR_En_oFnUnNuClTlI OfNl acgo,n scto ncshta rT*&  avb)s l{_
n      o| n                            ^n
ull/usr/local/clang/include/absl/base/nullability.h :M241a:k22e:C hnote: eexpanded from macro 'absl_nonnull'c
kF  a241i | l#Sdterfiinnge( 
a      b| s                                         ^l
_non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from In file included from s2/s2polygon.cc../src/s2/util/coding/coder.h::1836:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/base/casts.h::3436:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/base/logging.h::3321:
:
In file included from In file included from ../src/s2/base/commandlineflags.h/usr/local/clang/include/absl/log/check.h::2137:
:
/usr/local/clang/include/absl/flags/flag.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h118::2129:
:/usr/local/clang/include/absl/log/internal/check_op.h :warning: 181type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]118
 | vo  i181d |   S e t Fcloangs(ta basbls:l::F:lSatga<tTu>s**  aabbssll__nnoonnnnuullll  fsltaagt,u sc,In file included from o s2/s2polyline_simplifier.ccnc:so18tn:
 sIn file included from Vt../src/s2/s2polyline_simplifier.h& :c h63va:
)rIn file included from *  ../src/s2/s1chord_angle.h{a:
b29s      :
l| In file included from _                            ^../src/s2/s1angle.hn
on:nu28l:
lIn file included from  ../src/s2/s2point.hp:r27e:
fIn file included from i../src/s2/s2coder.hx:)23;:

In file included from       /usr/local/clang/include/absl/status/status.h| :                        ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/strings/cord.h::221140:: 49note: :expanded from macro 'absl_nonnull' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #de f1140i | n e   a b s l _ n o n n u l l   _ N o /usr/local/clang/include/absl/base/nullability.hn n In file included from :s2/s2polyline.ccu 241:l :18l 
22:
       :In file included from  |                       ^../src/s2/s2polyline.h 
note: : expanded from macro 'absl_nonnull'33 
:
 In file included from  ../src/s2/s1angle.hC:  o28241r:
d | In file included from R#ed../src/s2/s2point.heIn file included from p:fs2/s2predicates.ccE27i:x:
n18tIn file included from ee:
../src/s2/s2coder.hr nIn file included from :aab../src/s2/s2predicates.h23ls*::
l _57In file included from anbo:
/usr/local/clang/include/absl/status/status.hsnlIn file included from :n_u../src/s2/s1chord_angle.h67nl::
oln29In file included from  n_:
/usr/local/clang/include/absl/status/internal/status_internal.huNlIn file included from :oln../src/s2/s1angle.h29 nr::
uel28/usr/local/clang/include/absl/strings/cord.hpl):
:
;In file included from 109      
../src/s2/s2point.h:|                            ^:53| 
                                                ^25:
:
 In file included from warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/util/coding/coder.h:
:24136::
22  In file included from :109../src/s2/base/casts.h  | :note: vexpanded from macro 'absl_nonnull'36o
:
i  In file included from d241../src/s2/base/logging.h  | :C#21odp:
eyfIn file included from Cio/usr/local/clang/include/absl/log/check.hnr:ed 37Tao:
bSsIn file included from tl/usr/local/clang/include/absl/log/internal/check_impl.hr_in:nog21n(n:
cuo/usr/local/clang/include/absl/log/internal/check_op.hlnl:s t181_ N:Coo58nrn:du& l warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
r
      c| ,                     ^   
s181t | d : : s tcroinnsgt*  aabbssll:_:nSotnantIn file included from uus2/s2polyline_simplifier.ccls:l*18  :
daIn file included from sb../src/s2/s2polyline_simplifier.hts:)l63;_:
n
In file included from o      ../src/s2/s1chord_angle.hn| n:                                                    ^u29
l:
lIn file included from  ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.hs:t:28a241:
t:In file included from u22../src/s2/s2point.hs::, 27 note: c:
expanded from macro 'absl_nonnull'oIn file included from 
n../src/s2/s2coder.hs  t:241 23 | c:
#hIn file included from da/usr/local/clang/include/absl/status/status.her:f*67 i:
anIn file included from be/usr/local/clang/include/absl/status/internal/status_internal.hs :al29b_:
s/usr/local/clang/include/absl/strings/cord.hnlo:_n1146nn:ou10nl:nl u lwarning: pltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] r
_eNf oi1146xn | )nCu;olrld
R      e| p                     ^*
 absl_nonnull NewExternalRep(absl:In file included from :s2/s2polyline.ccs:t18r:
iIn file included from n../src/s2/s2polyline.hg:_33v:
iIn file included from e../src/s2/s1angle.hw: 28d:
aIn file included from t../src/s2/s2point.ha:,27
:
      In file included from | ../src/s2/s2coder.h         ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:110:  55241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine   110a | bvsoli_dn oAnpnpuelnld C_oNrodnTnouSltlr
i      n| g                     ^(
const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from 
s2/s2polyline_simplifier.cc      :| 18                                                         ^:

In file included from ../src/s2/s2polyline_simplifier.h:/usr/local/clang/include/absl/base/nullability.h63::
241In file included from :../src/s2/s1chord_angle.h22::29 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s1angle.h
:28:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l1159 :_17N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
       1159|  |                      ^i
nline CordRep* absl_nonnull NewExternIn file included from as2/s2predicates.ccl:R18e:
pIn file included from (../src/s2/s2predicates.h
:      57| :
                ^In file included from 
../src/s2/s1chord_angle.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from   ../src/s2/util/coding/coder.h241: | 36#:
dIn file included from e../src/s2/base/casts.hf:i36n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
_/usr/local/clang/include/absl/log/internal/check_op.hN:o189n:n28u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StIn file included from as2/s2polyline_simplifier.cct:u18s:
OIn file included from r../src/s2/s2polyline_simplifier.h<:T63>:
&In file included from  ../src/s2/s1chord_angle.hs:)29 :
{In file included from 
../src/s2/s1angle.h      :| 28                    ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27In file included from ::
s2/s2polyline.cc241In file included from ::../src/s2/s2coder.h1822::
:23In file included from  :
../src/s2/s2polyline.hnote: In file included from :expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h33
::
67In file included from   :
../src/s2/s1angle.h241In file included from : | /usr/local/clang/include/absl/status/internal/status_internal.h28#::
d29In file included from e:
../src/s2/s2point.hf/usr/local/clang/include/absl/strings/cord.h:i:27n1183:
e:In file included from  47../src/s2/s2coder.ha::b 23swarning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lIn file included from 
_/usr/local/clang/include/absl/status/status.hn: o671183n:
 | nIn file included from  u/usr/local/clang/include/absl/status/internal/status_internal.h l: l29  :
 _/usr/local/clang/include/absl/strings/cord.h N: o425 n: n62 u: l  l warning: 
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]       
 |                       ^   
 425  |      f r i e n d   v o i d   C o pCyoCrodrRdeTpo*S tarbisnlg_(ncuolnlsatb lCIn file included from eos2/s2predicates.cc r:rd18e&p :
)sIn file included from 
r../src/s2/s2predicates.h      c:| ,                                              ^57 
s:
t/usr/local/clang/include/absl/base/nullability.hIn file included from d:../src/s2/s1chord_angle.h:257:::s2923t:
:rIn file included from  i../src/s2/s1angle.hnote: nexpanded from macro 'absl_nullable':g
28*:
   In file included from 257a../src/s2/s2point.h:25:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
oIn file included from n | ../src/s2/base/casts.h#nd:ue36lf:
liIn file included from  nd../src/s2/base/logging.hes :ta)21b;:
s
lIn file included from       _/usr/local/clang/include/absl/log/check.h| n:                                                             ^u37
l:
lIn file included from /usr/local/clang/include/absl/base/nullability.ha/usr/local/clang/include/absl/log/internal/check_impl.h:b:241l21:e:
22 /usr/local/clang/include/absl/log/internal/check_op.h:_: N202note: uexpanded from macro 'absl_nonnull':l
l46a  :b241 l | ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^
  202 |   exp#ldiecfiitn eC haebcsklO_pnMoensnsualgle B_uNiolndneurl(lc
o      n| s                     ^t
 char* absl_nonnull exprtext);
      In file included from | s2/s2polyline.cc                                             ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline.h::24133::
22In file included from :../src/s2/s1angle.h :note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h:  27241:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
o/usr/local/clang/include/absl/strings/cord.hn:n437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2polyline_simplifier.cc
:18:
  In file included from 241../src/s2/s2polyline_simplifier.h | :#63d:
eIn file included from f../src/s2/s1chord_angle.hi:n29e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23_:
NIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                     ^
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2polyline.cco:n18n:
uIn file included from l../src/s2/s2polyline.hl:
33      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2polyline_simplifier.ccf:i18n:
eIn file included from  ../src/s2/s2polyline_simplifier.ha:b63s:
lIn file included from _../src/s2/s1chord_angle.hn:o29n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inIn file included from ls2/s2polyline.cci:n18e:
 In file included from c../src/s2/s2polyline.ho:n33s:
tIn file included from  ../src/s2/s1angle.hc:h28a:
rIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hC:o29r:
d/usr/local/clang/include/absl/strings/cord.h:::504I:n40l:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ep:  :504d | a t a ( )e xcpolniscti t{ 
C      h| u                   ^n
kI/usr/local/clang/include/absl/base/nullability.ht:e257r:a23t:o rnote: (expanded from macro 'absl_nullable'c
on  s257t |  #Cdoerfdi*n ea basbls_ln_onnunlullalb lceo r_dN)u;l
l      a| b                                       ^l
e
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.ccIn file included from :s2/s2polyline.cc18::
18In file included from :
../src/s2/s2polyline_simplifier.hIn file included from :../src/s2/s2polyline.h63::
33In file included from :
../src/s2/s1chord_angle.hIn file included from :../src/s2/s1angle.h29::
28In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2point.h28::
27In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2coder.h27::
23In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/status.h23::
67In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h67::
29In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/strings/cord.h29::
507:/usr/local/clang/include/absl/strings/cord.h43::1234 :20warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |    1234  |  ivnoliidn eI nciotnTsrte ec(hcaorr*d _aibnstle_rnnoanln:u:lClo rCdoRredp:*: Ianblsiln_enRoenpn:u:lals _tcrheaer)s;(
)       | c                                          ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241{:
22      :|                     ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:  241241: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fnionnen ualbls l__Nnoonnnnuullll
       _| N                     ^o
nnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2polyline_simplifier.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2polyline_simplifier.h27::
63In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s1chord_angle.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s1angle.h67::
28In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
27:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2coder.h525::2335:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  /usr/local/clang/include/absl/strings/cord.h525: | 1239 : 38 :  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l::c o1239r | di_nilnitneer naabls:l::C:ocrodrRde_pi*n taebrsnla_ln:u:lCloarbdlRee pc*u rarbesnlt__nloenanfu_l l=  Cnourldl:p:tIrn;l
i      n| e                                  ^R
ep/usr/local/clang/include/absl/base/nullability.h:::257a:s23_:t rnote: eexpanded from macro 'absl_nullable'e
()  
257       | | #                                     ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef i_nNeu lalbasbll_en
o      n| n                      ^u
ll _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::trIn file included from es2/s2polyline.cce:(18):

In file included from       ../src/s2/s2polyline.h| :                                     ^33
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28257:
:In file included from 23../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2coder.h
:23:
  In file included from 257/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 /usr/local/clang/include/absl/strings/cord.ha:b582s:l37_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
able   582_ | N u l l aebxlpel
i      c| i                      ^t
 ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241u | l#dle f_iNnoen naublsll
_      n| o                     ^n
nulIn file included from ls2/s2polyline_simplifier.cc :_18N:
oIn file included from n../src/s2/s2polyline_simplifier.hn:u63l:
lIn file included from 
../src/s2/s1chord_angle.h      :| 29                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inlinIn file included from es2/s2polyline.cc :cIn file included from 18os2/s2predicates.cc:
r:In file included from d18../src/s2/s2polyline.h_:
:iIn file included from 33n../src/s2/s2predicates.h:
t:In file included from e57../src/s2/s1angle.hr:
:nIn file included from 28a../src/s2/s1chord_angle.h:
l:In file included from :29../src/s2/s2point.h::
:CIn file included from 27o../src/s2/s1angle.h:
r:In file included from d28../src/s2/s2coder.hR:
:eIn file included from 23p../src/s2/s2point.h:
F:In file included from l25/usr/local/clang/include/absl/status/status.ha:
:tIn file included from 67*../src/s2/util/coding/coder.h:
 :In file included from a36/usr/local/clang/include/absl/status/internal/status_internal.hb:
:sIn file included from 29l../src/s2/base/casts.h:
_/usr/local/clang/include/absl/strings/cord.h:n:o36588n:
:nIn file included from 17u../src/s2/base/logging.h:l: l21warning: 
:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      In file included from 
| /usr/local/clang/include/absl/log/check.h                                   ^:
  37588:
/usr/local/clang/include/absl/base/nullability.h | In file included from : /usr/local/clang/include/absl/log/internal/check_impl.h:21:
241 /usr/local/clang/include/absl/log/internal/check_op.h: : 22c209:o: n15note: sexpanded from macro 'absl_nonnull':t
    C241owarning:  | rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#dd
*e fai  bns209el  | _ an bocsnoln_nunslotl nc nhcuoalrrl*d  __;Na
ob      ns| n                ^lu
_ln/usr/local/clang/include/absl/base/nullability.hlo:
n241      n:| u22                     ^l:l
  note: Nexpanded from macro 'absl_nonnull'e
wS  t241r | i#ndge(f)i;n
e       | a              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pIn file included from os2/s2polyline_simplifier.cci:nter = 18c:
oIn file included from n../src/s2/s2polyline_simplifier.hs:t63 :
cIn file included from h../src/s2/s1chord_angle.ha:r29*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:;23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                ^:
67:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.h::24129::
22:/usr/local/clang/include/absl/strings/cord.h :1268note: :expanded from macro 'absl_nonnull'51
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def i1268n | ei nalbisnle_ nvoIn file included from ons2/s2predicates.ccin:du18 l:
CloIn file included from  r_../src/s2/s2predicates.hdN::o57:n:
InnIn file included from ull../src/s2/s1chord_angle.hiln:
e29      R:
| eIn file included from                      ^p../src/s2/s1angle.h
:::28E:
mIn file included from p../src/s2/s2point.hl:a25c:
eIn file included from T../src/s2/util/coding/coder.hr:e36e:
(In file included from C../src/s2/base/casts.ho:r36d:
RIn file included from e../src/s2/base/logging.hp:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 226r:e59p:, 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                                                  ^

In file included from s2/s2polyline.cc/usr/local/clang/include/absl/base/nullability.h:  :18226241:
 | :vIn file included from o22../src/s2/s2polyline.hi::d  note: 33expanded from macro 'absl_nonnull'M:
a
In file included from k../src/s2/s1angle.h  e:C24128h | :
e#cIn file included from kd../src/s2/s2point.hOe:fp27Via:
nlIn file included from uee../src/s2/s2coder.h S:at23br:
siIn file included from ln/usr/local/clang/include/absl/status/status.h_g:n(67so:
tnIn file included from dn/usr/local/clang/include/absl/status/internal/status_internal.hu:::l29ol:
s /usr/local/clang/include/absl/strings/cord.ht_r:Ne655oa:nm39n&:u  owarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l,
l 
c        o| 655n                     ^ | s
 t   v oeixdp*l iacbistl _CnhualrlIatbelrea tpo)r;(
c      o| n                                                          ^s
t /usr/local/clang/include/absl/base/nullability.hC:o257r:d23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli nceo radbIn file included from )ss2/s2polyline_simplifier.cc
l:      _18| n:
u                                      ^lIn file included from 
l../src/s2/s2polyline_simplifier.ha:/usr/local/clang/include/absl/base/nullability.hb63l:e:
 241_In file included from :N../src/s2/s1chord_angle.hu22:l:l29 a:
note: bIn file included from lexpanded from macro 'absl_nonnull'e../src/s2/s1angle.h

:        28| 241:
                      ^ | In file included from #
../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :_1275N:o51n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
 1275 | inline void Cord::InlineRep::EmplaceTreIn file included from s2/s2polyline.cc:18:
In file included from e../src/s2/s2polyline.h(:C33o:
rIn file included from d../src/s2/s1angle.hR:e28p:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
rIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hp:,29
:
      | /usr/local/clang/include/absl/strings/cord.h                                                  ^:
667:44:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'
  667 |    241  | s#tdaetfiicn eC oarbds lA_dnvoannncuelAln d_RNeoandn(uClhla
r      I| t                     ^e
rator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2polyline_simplifier.ccn:n18u:
lIn file included from l../src/s2/s2polyline_simplifier.h
:      63| :
                     ^In file included from 
../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline.cc:18 :
1282In file included from  | ../src/s2/s2polyline.hi:n33l:
iIn file included from n../src/s2/s1angle.he: 28v:
oIn file included from i../src/s2/s2point.hd: 27C:
oIn file included from r../src/s2/s2coder.hd::23::
IIn file included from n/usr/local/clang/include/absl/status/status.hl:i67n:
eIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.he:p29::
:/usr/local/clang/include/absl/strings/cord.hS:e674t:T37r:e ewarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ordR  e674p | *   asbtsalt_inco nvnouildl  Ardevpa,n
c      e| (                                              ^C
ha/usr/local/clang/include/absl/base/nullability.hr:I241t:e22r:a tnote: oexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb silt_,n osninzuel_lt  _nN_obnyntuelsl)
;      
|                            ^| 
                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | In file included from is2/s2polyline.ccn:l18i:
nIn file included from e../src/s2/s2polyline.h :v33o:
iIn file included from d../src/s2/s1angle.h :C28o:
rIn file included from d../src/s2/s2point.h:::27I:
nIn file included from l../src/s2/s2coder.hi:n23e:
RIn file included from e/usr/local/clang/include/absl/status/status.hp::67::
SIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.ht:T29r:
e/usr/local/clang/include/absl/strings/cord.he:O730r:E36m:p twarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
Cord  R730e | p *   a besxlp_lniuclilta bClhea rrReapn,g
e      (| c                                                     ^o
nst/usr/local/clang/include/absl/base/nullability.h :C257o:r23d:*  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln ec oarbds)l _:n uclolradb_l(ec o_rNdu)l l{a}b
l      e| 
                                   ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2polyline_simplifier.cc736::1817:
:In file included from  ../src/s2/s2polyline_simplifier.h:warning: 63type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1chord_angle.h:29  :
736In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from  ../src/s2/s2coder.hC:o23r:
dIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
n/usr/local/clang/include/absl/strings/cord.hn:u1301l:l56 :c owarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
_;
      |                  ^1301
 | i/usr/local/clang/include/absl/base/nullability.hn:l241i:n22e:  vnote: oexpanded from macro 'absl_nonnull'i
d   C241o | r#dd:e:fIinnlei naebRselp_:n:oCnonmumlilt T_rNeoen(ncuolnls
t       | C                     ^o
rdRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2polyline.cc27::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2polyline.h23::
33In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s1angle.h67::
28In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
27/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1302../src/s2/s2coder.h::5023::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h: 291302:
 | /usr/local/clang/include/absl/strings/cord.h : 795 : 43 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       795  |      f r i e n d   v o i d   A bslF o r m a t F l u sCho(radbRselp:*: Caobrsdl*_ naobnsnlu_lnlo nrneupl,l
       c| o                                                 ^r
d,/usr/local/clang/include/absl/base/nullability.h
:      241| :                                          ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CoIn file included from rs2/s2polyline_simplifier.ccd:z18I:
nIn file included from f../src/s2/s2polyline_simplifier.ho:*63 :
aIn file included from b../src/s2/s1chord_angle.hs:l29_:
nIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he: 27G:
eIn file included from t../src/s2/s2coder.hC:o23r:
dIn file included from z/usr/local/clang/include/absl/status/status.hI:n67f:
oIn file included from F/usr/local/clang/include/absl/status/internal/status_internal.ho:r29T:
e/usr/local/clang/include/absl/strings/cord.hs:t1321i:n48g:( 
warning:       | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                          ^

/usr/local/clang/include/absl/base/nullability.h:257 :132123 | :i nnote: lexpanded from macro 'absl_nullable'i
ne   257v | o#idde fCionred :a:bIsnll_innuelRleapb:l:eC o_pNyuTlolAarbrlaey
(      c| h                      ^a
r* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 276s2/s2polyline.cc::1318::
 In file included from warning: ../src/s2/s2polyline.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
33:
In file included from ../src/s2/s1angle.h:28  :
276In file included from  | ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :v23o:
iIn file included from d/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
u/usr/local/clang/include/absl/strings/cord.hl:l927a:b43l:e  warning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]p
erat  o927r | < < ( s t d : : o s t r e a m & , 
        |              ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
Co  r257d | R#edpe*f ianbes la_bnsull_lnaublllea brleep )_;N
u      l| l                                          ^a
bl/usr/local/clang/include/absl/base/nullability.he:
257      :| 23                      ^:
 note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2/s2predicates.cci:n18e:
 In file included from a../src/s2/s2predicates.hb:s57l:
_In file included from n../src/s2/s1chord_angle.hu:l29l:
aIn file included from b../src/s2/s1angle.hl:e28 :
_In file included from N../src/s2/s2point.hu:l25l:
aIn file included from b../src/s2/util/coding/coder.hl:e36
:
      In file included from | ../src/s2/base/casts.h                      ^:
36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2polyline.cc
:18:
In file included from ../src/s2/s2polyline.h  :27733 | :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 929 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  c  o929n | s t   v oviodi*d  aSbwsalp_(nIunlllianbelRee pv*a laubes)l;_
n      o| n                                                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257r:h23s:) ;note: 
expanded from macro 'absl_nullable'      
|                          ^  
257 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  a_bNsull_lnaobnlneu
l      | l                      ^ 
_Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2polyline.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2polyline.h25::
33In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s1angle.h36::
28In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2point.h36::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/strings/cord.h278::93213::17 : warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

    278932 |  | c o n s tc ovnositd *c haabrs*l _anbuslll_anbullel aobpleer adtaotra<(<)( sctodn:s:to;s
t      r| e                ^a
m&/usr/local/clang/include/absl/base/nullability.h,: 257s:t23d:: :note: nexpanded from macro 'absl_nullable'u
ll  p257t | r#_dte)f;i
n      e|              ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:u23l:l anote: bexpanded from macro 'absl_nullable'l
e   _257N | u#ldleafbilnee
       a| b                      ^s
l_nullable _NulIn file included from ls2/s2polyline.cca:b18l:
eIn file included from 
../src/s2/s2polyline.h      :| 33                      ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2predicates.cc257: | 18#:
dIn file included from e../src/s2/s2predicates.hf:i57n:
eIn file included from  ../src/s2/s1chord_angle.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:l25e:
 In file included from _../src/s2/util/coding/coder.hN:u36l:
lIn file included from a../src/s2/base/casts.hb:l36e:

In file included from       ../src/s2/base/logging.h| :                      ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline.cc:  18292:
 | In file included from c../src/s2/s2polyline.ho:n33s:
tIn file included from  ../src/s2/s1angle.hc:h28a:
rIn file included from *In file included from ../src/s2/s2point.h s2/s2projections.cc:a:b2718s:
:
lIn file included from In file included from _../src/s2/s2coder.h../src/s2/s2projections.hn::o2327n:
:
nIn file included from In file included from u/usr/local/clang/include/absl/status/status.h../src/s2/r2.hl::l6722 :
:
oIn file included from In file included from p/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/util/math/vector.he::r2936a:
:
/usr/local/clang/include/absl/strings/cord.htIn file included from o:../src/s2/base/logging.hr935:<:21<11:
(:In file included from s /usr/local/clang/include/absl/log/check.htwarning: :dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37:
:
:In file included from b/usr/local/clang/include/absl/log/internal/check_impl.ha  :s93521i | :
c In file included from  _ /usr/local/clang/include/absl/log/internal/check_op.h oc:shta41rr:
*e In file included from aab/usr/local/clang/include/absl/log/internal/strip.hms:<l26c_:
hnIn file included from ao/usr/local/clang/include/absl/log/internal/log_message.hnrn:,u53 l:
lT/usr/local/clang/include/absl/types/source_location.h rs:eat113i_:td19sa:>t a&warning: (,stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
i
z      e| _              ^t113
  | n ) ;/usr/local/clang/include/absl/base/nullability.h  :  241/ :/  22Wcr:oi tnenote: s expanded from macro 'absl_nonnull'td
a t  ac ht241ao | r# *td heaef briessnulle_ tn
aob      nsn| l          ^u_
lnlo /usr/local/clang/include/absl/base/nullability.hnfn:iul241lel:_ n22_aN:moe n note: n=uexpanded from macro 'absl_nonnull' l_l
_
b      u  | i241                     ^l | 
#tdienf_iFnIeL Ea(b)s)l _In file included from {ns2/s2predicates.cco
n:      n18u| :
                  ^lIn file included from l
 ../src/s2/s2predicates.h_:N/usr/local/clang/include/absl/base/nullability.h57o:n:
n241uIn file included from l:l../src/s2/s1chord_angle.h22
::      29 | :
                     ^note: In file included from expanded from macro 'absl_nonnull'
../src/s2/s1angle.h
:28:
  In file included from 241../src/s2/s2point.h | :#25d:
eIn file included from f../src/s2/util/coding/coder.hi:n36e:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.hoIn file included from :ns2/s2polyline.cc21n::
u18In file included from l:
/usr/local/clang/include/absl/log/check.hlIn file included from : ../src/s2/s2polyline.h37_::
N33In file included from o:
/usr/local/clang/include/absl/log/internal/check_impl.hnIn file included from :n../src/s2/s1angle.h21u::
l/usr/local/clang/include/absl/log/internal/check_op.h28l:
:
293      In file included from :| ../src/s2/s2point.h                     ^49:
:27 :
In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h  :29367 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 937 : 35 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      In file included from 937 s2/s2projections.cc  | :   18   :
 aIn file included from b ../src/s2/s2projections.h s:l :27: c:
o In file included from  r../src/s2/r2.h d: _22 i:
 nIn file included from  t../src/s2/util/math/vector.h e:rc36noa:
nlIn file included from s:../src/s2/base/logging.h:tC: o21rc:
dhRIn file included from ea/usr/local/clang/include/absl/log/check.hpr*: *a37b s:
la_In file included from nbu/usr/local/clang/include/absl/log/internal/check_impl.hls:ll21a_b:
lneIn file included from  ot/usr/local/clang/include/absl/log/internal/check_op.hrne:en(41)u :
cloIn file included from ln/usr/local/clang/include/absl/log/internal/strip.h)s:t;;26

:
            In file included from | |                                   ^/usr/local/clang/include/absl/log/internal/log_message.h                                                ^
:
53/usr/local/clang/include/absl/base/nullability.h:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/types/source_location.h:257:241:133:23::22 25note: :expanded from macro 'absl_nullable' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #d  e133f | i n ec oanbsstle_xnpurl lcaobnlset  _cNhualrl*a balbes
l      _| n                      ^o
nnull file_name() constIn file included from  s2/s2polyline.ccn:o18e:
xIn file included from c../src/s2/s2polyline.he:p33t:
 In file included from {../src/s2/s1angle.h
:      28| :
                        ^In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
d/usr/local/clang/include/absl/strings/cord.he:f938i:n35e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o938n | n u l l  a_bNsoln:n:uclolr
d      _| i                     ^n
ternal::CordRep* abIn file included from ss2/s2projections.ccl:_18n:
oIn file included from n../src/s2/s2projections.hn:u27l:
lIn file included from  ../src/s2/r2.ha:s22_:
tIn file included from r../src/s2/util/math/vector.he:e36(:
)In file included from  ../src/s2/base/logging.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/log/check.h;:
37      :
| In file included from                                   ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h241::4122:
:In file included from  /usr/local/clang/include/absl/log/internal/strip.hnote: :expanded from macro 'absl_nonnull'26
:
In file included from   /usr/local/clang/include/absl/log/internal/log_message.h241: | 53#:
d/usr/local/clang/include/absl/types/source_location.he:f142i:25: warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s142l | _ n ocnonnusltle x_pNro ncnounlslt
       c| h                     ^a
r* absl_nonIn file included from ns2/s2polyline.ccu:l18l:
 In file included from f../src/s2/s2polyline.hu:n33c:
tIn file included from i../src/s2/s1angle.ho:n28_:
nIn file included from a../src/s2/s2point.hm:e27(:
)In file included from  ../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h :n67o:
eIn file included from x/usr/local/clang/include/absl/status/internal/status_internal.hc:e29p:
t/usr/local/clang/include/absl/strings/cord.h :{939
:      17| :                        ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22  :939  | note:  expanded from macro 'absl_nonnull' 
    c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_ Naosn_ncuhlalr
s      (| )                     ^ 
const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2projections.cc#:d18e:
fIn file included from i../src/s2/s2projections.hn:e27 :
aIn file included from b../src/s2/r2.hs:l22_:
nIn file included from o../src/s2/util/math/vector.hn:n36u:
lIn file included from l../src/s2/base/logging.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37In file included from l:
s2/s2polyline_alignment.cclIn file included from :
      /usr/local/clang/include/absl/log/internal/check_impl.h17| ::
                     ^21In file included from 
:
../src/s2/s2polyline_alignment.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h24::
41In file included from :
../src/s2/s2polyline.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h33::
26In file included from :
../src/s2/s1angle.hIn file included from In file included from :s2/s2polyline.cc/usr/local/clang/include/absl/log/internal/log_message.h28:::
1853In file included from :
:
../src/s2/s2point.hIn file included from /usr/local/clang/include/absl/types/source_location.h:../src/s2/s2polyline.h:27:150:
33:In file included from :
40../src/s2/s2coder.hIn file included from ::../src/s2/s1angle.h 23:warning: :
28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :

/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2point.h67:  :
27150In file included from :
 | /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from  :../src/s2/s2coder.h 29: :
23 In file included from :
 /usr/local/clang/include/absl/strings/cord.hIn file included from  :/usr/local/clang/include/absl/status/status.h 82: :
67 In file included from :
 /usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from  :/usr/local/clang/include/absl/status/internal/status_internal.h 23: :
29 In file included from :
 /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/crc/crc32c.h :: 94132 ::
 35In file included from  :/usr/local/clang/include/absl/strings/str_format.h  : warning: 84 type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 
In file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.h   : 94129c | :
 o/usr/local/clang/include/absl/strings/internal/str_format/parser.h n: s227 t:a 11bc:sh lawarning: :r'enable_if' is a clang extension [-Wgcc-compat]*:
c oar  db227_s | i ln t_ en r on an l n:u l: Ceonlrad bRlefepi_*i lfae(bs_stlnr__anfmueol)rlm
aab      tl_| e                                       ^i n
ctl/usr/local/clang/include/absl/base/nullability.heer:anr241a(l)::;:22
E:      n | snote:                                   ^expanded from macro 'absl_nonnull'u
r
e/usr/local/clang/include/absl/base/nullability.hC:o  257n241:s | 23t#:ed xenote: pexpanded from macro 'absl_nullable'fr
i(  fn257oe | r# mdaaetfb)i,sn
el       _| nao          ^bn
snlu_lnlu /usr/local/clang/include/absl/strings/internal/str_format/parser.hl_:lN229ao:bn11ln:uel lwarning:  'enable_if' is a clang extension [-Wgcc-compat]
_
N      u|   l                     ^229l
 | a b l e 
        |                        ^ 
  enable_if(str_format_internal::ValiIn file included from ds2/s2projections.ccF:o18r:
mIn file included from a../src/s2/s2projections.htIn file included from :Is2/s2polyline.ccm27:p:
18lIn file included from :
<../src/s2/r2.hIn file included from C:../src/s2/s2polyline.h.22:.:
33.In file included from :
>../src/s2/util/math/vector.hIn file included from (:../src/s2/s1angle.hf36:o:
28rIn file included from :
m../src/s2/base/logging.hIn file included from a:../src/s2/s2point.ht21:):
27,In file included from :

/usr/local/clang/include/absl/log/check.hIn file included from       :../src/s2/s2coder.h| 37:          ^:
23
In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/status.h21::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h41::
29In file included from :
/usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/strings/cord.h::26950:
:In file included from 18/usr/local/clang/include/absl/log/internal/log_message.h:: 53warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/types/source_location.h
:165:15:   950warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     C165o | r d RceopnFslta tc*h aarb*s la_bnsoln_nnuolnln uMlalk efFillaet_WniatmheE_x t=r a"C"a;p
a      c| i              ^t
y(/usr/local/clang/include/absl/base/nullability.hs:i241z:e22_:t  note: eexpanded from macro 'absl_nonnull'x
tr  a241) | ;#
d      e| f                 ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2projections.ccn:e:18  a:
note: bIn file included from expanded from macro 'absl_nonnull's../src/s2/s2projections.h
l:_27  n:
241uIn file included from  | l../src/s2/r2.h#l:da22be:
flIn file included from ie../src/s2/util/math/vector.h n_:eN36u :
alIn file included from bl../src/s2/base/logging.has:lb21_l:
neIn file included from o
/usr/local/clang/include/absl/log/check.hn      :n| 37u                      ^:
l
In file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26                     ^In file included from :

s2/s2polyline.cc/usr/local/clang/include/absl/log/internal/log_message.h::1871:
:In file included from 26../src/s2/s2polyline.h:: 33:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h   :7127 | :
 In file included from  ../src/s2/s2coder.hL:o23g:
In file included from MIn file included from s2/s2predicates.cce/usr/local/clang/include/absl/status/status.h:s:18s67:
a:
In file included from gIn file included from ../src/s2/s2predicates.he/usr/local/clang/include/absl/status/internal/status_internal.h:(:57c29:
o:
In file included from n/usr/local/clang/include/absl/strings/cord.h../src/s2/s1chord_angle.hs::t96829 ::
c31In file included from h:../src/s2/s1angle.ha :rwarning: 28*type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 
In file included from a../src/s2/s2point.hb:s  25l968:
_ | In file included from  n ../src/s2/util/coding/coder.h o :vno36ind:
 uEIn file included from ml../src/s2/base/casts.hpll: a36fc:
ieIn file included from Tl../src/s2/base/logging.hre:e,e21( C:
oirIn file included from nd/usr/local/clang/include/absl/log/check.htR: e37pl*:
i naIn file included from bes/usr/local/clang/include/absl/log/internal/check_impl.h,l:
_21n      o:
n/usr/local/clang/include/absl/log/internal/check_op.hn| u                         ^:l
l295 :r/usr/local/clang/include/absl/base/nullability.he20:p:241,  :Mwarning: In file included from 22etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2polyline_alignment.cc:t
: h17note: o  :
expanded from macro 'absl_nonnull'd295In file included from 
I | ../src/s2/s2polyline_alignment.hcd  :oe24124nn | t#:
sidIn file included from tfe../src/s2/s2polyline.h if:sei33irn:
g eIn file included from nm ../src/s2/s1angle.heea:dtb28 hs:
colIn file included from hd_../src/s2/s2point.ha)n:r;o27*
n:
       nIn file included from a| u../src/s2/s2coder.hb                              ^l:s
l23l _/usr/local/clang/include/absl/base/nullability.h:
_nN:In file included from oon241/usr/local/clang/include/absl/status/status.hnnn::uull22l67l:
:
        In file included from onote: | /usr/local/clang/include/absl/status/internal/status_internal.hpexpanded from macro 'absl_nonnull'                     ^:e

29r  :
a241In file included from t | /usr/local/clang/include/absl/strings/cord.ho#r:d<82<e:
(fIn file included from sit/usr/local/clang/include/absl/crc/internal/crc_cord_state.hnd:e:23 :ab:
baIn file included from ss/usr/local/clang/include/absl/crc/crc32c.hil:_c32n_:
ooIn file included from ns/usr/local/clang/include/absl/strings/str_format.hnt:ur84le:
la/usr/local/clang/include/absl/strings/internal/str_format/bind.h m:_<143Nc:oh11na:nr u,warning:  'enable_if' is a clang extension [-Wgcc-compat]lTIn file included from 
lr
as2/s2projections.cci        :t| 14318s                     ^ | :
 >
In file included from  & ../src/s2/s2projections.h , :
 27       :
|  In file included from                    ^ ../src/s2/r2.h 
:In file included from /usr/local/clang/include/absl/base/nullability.he22s2/s2polyline.cc:n:
:241aIn file included from 18:b../src/s2/util/math/vector.h:
22l:In file included from :e36../src/s2/s2polyline.h _:
:note: iIn file included from 33expanded from macro 'absl_nonnull'f../src/s2/base/logging.h:

(:In file included from s  21../src/s2/s1angle.ht241:
:r | In file included from 28_#/usr/local/clang/include/absl/log/check.hd:
f:eIn file included from o37f../src/s2/s2point.hr:
mi:In file included from an27/usr/local/clang/include/absl/log/internal/check_impl.hte:
:_ In file included from 21ia../src/s2/s2coder.h:
nb:In file included from ts23/usr/local/clang/include/absl/log/internal/check_op.hel:
:r_In file included from 41nn/usr/local/clang/include/absl/status/status.h:
ao:In file included from ln67/usr/local/clang/include/absl/log/internal/strip.h:n:
::uIn file included from 26El/usr/local/clang/include/absl/status/internal/status_internal.h:
nls :/usr/local/clang/include/absl/log/internal/log_message.hu_29:rN:
78eo/usr/local/clang/include/absl/strings/cord.h:Cn:26on972:nu: sl31warning: tl:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 
x      warning: p|    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r                     ^78
(
s | )   ,972   | L"o cg oM neIn file included from  svss2/s2predicates.ccsto:aei18gxd:
ep rIn file included from (E ../src/s2/s2predicates.hcmt:oprlaap57nc"e:
s)T,r
eIn file included from t      e../src/s2/s1chord_angle.h | (:c          ^C29h
o:
radIn file included from Rre../src/s2/s1angle.h*p: *28 aab:
bssIn file included from ll_../src/s2/s2point.hn_o:nnn25uol:
ln In file included from rn../src/s2/util/coding/coder.heup:l,36 lc:
o nfIn file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.hsitl ../src/s2/base/casts.h:eI:149,n36: l:
22iiIn file included from :nn../src/s2/base/logging.h twarning: e'enable_if' is a clang extension [-Wgcc-compat]: D
a21tlai&n e:
  In file included from p,aIn file included from 149s2/s2polyline_simplifier.cc
r/usr/local/clang/include/absl/log/check.h | :       e:18 | n37:
                          ^t:
In file included from  
,In file included from ../src/s2/s2polyline_simplifier.h 
 /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h:      _::63| _                              ^24121:
a
t:/usr/local/clang/include/absl/base/nullability.h:
In file included from t22:/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1chord_angle.hr:241::i :29629bnote: 22::
uexpanded from macro 'absl_nonnull':63In file included from t
 :../src/s2/s1angle.he  note:  :_241expanded from macro 'absl_nonnull'warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_ | 
:

(#In file included from   (d  e../src/s2/s2point.h241e296f: | n# | i 27adbelfn e:
ei_  In file included from nie a ../src/s2/s2coder.hf (asbb s:tsr l 23l___ n:
fno o In file included from orn /usr/local/clang/include/absl/status/status.hnmnn u:aut l 67l_ll  :
i n _ In file included from _tN o/usr/local/clang/include/absl/status/internal/status_internal.hNeo n :rnnn u29nau l:
ll l :/usr/local/clang/include/absl/strings/cord.hl

 ::             E1505n| |  :s                     ^                     ^ 41u

 :r  e warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] o 
n s t  e1505x  | p In file included from irn s2/s2polyline.ccIn file included from (ls :s2/s2projections.cci)n, 18:e
 :
18       vIn file included from o:
| ../src/s2/s2polyline.h                     ^iIn file included from :
d../src/s2/s2projections.h33 ::
C27In file included from o:
../src/s2/s1angle.hrIn file included from d::../src/s2/r2.h28:::
C22In file included from o:
../src/s2/s2point.hpIn file included from y:T../src/s2/util/math/vector.h27o::
A36In file included from r:
../src/s2/s2coder.h/usr/local/clang/include/absl/strings/internal/str_format/bind.hrIn file included from ::a../src/s2/base/logging.h23158y::
:I21In file included from 22m:
/usr/local/clang/include/absl/status/status.h:pIn file included from : l/usr/local/clang/include/absl/log/check.h67warning: ('enable_if' is a clang extension [-Wgcc-compat]::
c
h37In file included from a  :
/usr/local/clang/include/absl/status/internal/status_internal.hr158*In file included from : |   /usr/local/clang/include/absl/log/internal/check_impl.h29a b::
 s 21/usr/local/clang/include/absl/strings/cord.hl _:
: n_In file included from 978o_n/usr/local/clang/include/absl/log/internal/check_op.h:ant:36ut41:lrl:
 i In file included from warning: bdu/usr/local/clang/include/absl/log/internal/strip.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]stte:
)_ _26  c(o:
978(n/usr/local/clang/include/absl/log/internal/log_message.h | e s:n a bt80 lv :eo_ii{f26d
 (:      CVo | a                                        ^mwarning: l
imdtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]iFtoT/usr/local/clang/include/absl/base/nullability.hr
r:me241   aet(:c80I22mop | : nl  note: sexpanded from macro 'absl_nonnull't< L
ACro  ogrg241sd.R.e.M | ep>#(s*dss e)faa,i gbn"eesb a(lcad_ obnfunssotllr_ lmnacahotb anrltnr*eual  pl"ao )_bl)N)sdo
nl_      n_unro| l                     ^le
n
p      ,n| 
                     ^u      
l| l                                   ^ 
fi/usr/local/clang/include/absl/base/nullability.hl:e257,: 23i:n tnote:  /usr/local/clang/include/absl/strings/internal/str_format/bind.hexpanded from macro 'absl_nullable'l:
i162  n:257e22, | :
# d      warning: e'enable_if' is a clang extension [-Wgcc-compat]| f                         ^
i
ne  /usr/local/clang/include/absl/base/nullability.h 162a: | b 241s :l _22 n :u l _l_note: aexpanded from macro 'absl_nonnull'abt
In file included from lter i_  s2/s2polyline_simplifier.ccbNuu241:tl | 18el#:
_adIn file included from _be../src/s2/s2polyline_simplifier.h(lf:(ei63nee
:
n       In file included from aa| b../src/s2/s1chord_angle.hb                      ^s:l
l29e_:
_nIn file included from io../src/s2/s1angle.hfn:In file included from (n28s2/s2polyline.ccVu:
l:aIn file included from ll18 ../src/s2/s2point.hi:
_:dIn file included from N27F../src/s2/s2polyline.ho:
o:nIn file included from r33n../src/s2/s2coder.hm:
u:aIn file included from l23t../src/s2/s1angle.hl:
I:
In file included from m28      /usr/local/clang/include/absl/status/status.hp:
| :lIn file included from                      ^67<../src/s2/s2point.h
:
A:rIn file included from 27g/usr/local/clang/include/absl/status/internal/status_internal.h:
s:In file included from .29../src/s2/s2coder.h.:
:.23:
/usr/local/clang/include/absl/strings/cord.h>In file included from :(/usr/local/clang/include/absl/status/status.h1514s::)6729,:
: In file included from  "/usr/local/clang/include/absl/status/internal/status_internal.hwarning: b:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a29
d:
 /usr/local/clang/include/absl/strings/cord.hf: o979rIn file included from 1514:ms2/s2projections.cc | 30 a ::t  18  t:
warning: croIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]arp../src/s2/s2projections.h
d"_:)i  27)n979t:
) | 
 e In file included from       r n../src/s2/r2.h|  a:                     ^ l 22
: :
: C In file included from o r../src/s2/util/math/vector.h d :R 36e p:
 * In file included from   ../src/s2/base/logging.ha b: s 21lC_:
onrIn file included from odnR/usr/local/clang/include/absl/log/check.hneu:pl37*l:
  atbIn file included from rs/usr/local/clang/include/absl/log/internal/check_impl.hele:_)n21 o{n:

nIn file included from       u/usr/local/clang/include/absl/log/internal/check_op.h| l                            ^:l
 41r:
/usr/local/clang/include/absl/base/nullability.heIn file included from :p/usr/local/clang/include/absl/log/internal/strip.h241,:: 2622c:
:o/usr/local/clang/include/absl/log/internal/log_message.h n:note: sexpanded from macro 'absl_nonnull'82t
 :  C26241o: | r# ddzwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ufp
idnae   t e82aSb | cs ol pL_oeng&o Mnsencsuoslpaleg ,_e
N(      oc| on                             ^nn
us/usr/local/clang/include/absl/base/nullability.htl: l241c
:h      a22| r:                     ^* 
 note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ef ialbes,l _innotn nluilnle ,_
N      o| n                         ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2polyline.ccn:n18u:
lIn file included from l../src/s2/s2polyline.h :_33N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2polyline_simplifier.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2polyline_simplifier.h27::
63In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s1chord_angle.hIn file included from :23s2/s2projections.cc29:
::
In file included from 18In file included from /usr/local/clang/include/absl/status/status.h:
../src/s2/s1angle.h:In file included from :67../src/s2/s2projections.h28:
::
In file included from 27In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:
../src/s2/s2point.h:In file included from :29../src/s2/r2.h27:
::
/usr/local/clang/include/absl/strings/cord.h22In file included from ::
../src/s2/s2coder.h984In file included from ::../src/s2/util/math/vector.h2336::
:36In file included from  :
/usr/local/clang/include/absl/status/status.hwarning: In file included from :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h67
::
21In file included from   :
/usr/local/clang/include/absl/status/internal/status_internal.h984In file included from : | /usr/local/clang/include/absl/log/check.h29 ::
 37/usr/local/clang/include/absl/strings/cord.h :
: In file included from 1525v/usr/local/clang/include/absl/log/internal/check_impl.h:o:29i21:d:
  In file included from Awarning: p/usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p:
e41n:
d TIn file included from 1525r/usr/local/clang/include/absl/log/internal/strip.h | e: e 26T o:
 T/usr/local/clang/include/absl/log/internal/log_message.hcro:ere119d(_:Cio41nrtd:eR renwarning: pa*type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l :
a:bCsol  r_d119nRo | e np n*Lu loalbg sMtlre_esnceoso,nnna gsuMlete tshilg&o  TndtIoerdSde ec)heai nnr{*kt
i fA      lasi| ebrso                            ^ l(_a
bmsne/usr/local/clang/include/absl/base/nullability.hlot:h:n:241onLuo:dl)g22l;)
S:i;      
       n| note: | expanded from macro 'absl_nonnull'k                                   ^                                                              ^
*
  
 241/usr/local/clang/include/absl/base/nullability.ha | b:/usr/local/clang/include/absl/base/nullability.h#s241:dl:241e_22:fn:22ionn :en note:  expanded from macro 'absl_nonnull'unote: a
blexpanded from macro 'absl_nonnull's  l
l241 _ | s  n#odi241nenn | k#)fudl;ielf
n e_ Ni      aobnn| s                                        ^neull
 _anlo/usr/local/clang/include/absl/base/nullability.hb
snl:      n_u241| n                     ^oln:
ln 22u_l:Nlo  nnote: _expanded from macro 'absl_nonnull'nNu
olnl  n
u241      l | | l#                     ^
d
      e| f                     ^i
ne absl_nonIn file included from ns2/s2polyline.ccu:l18l:
 In file included from _../src/s2/s2polyline.hN:o33n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 985s2/s2predicates.cc | :In file included from  18s2/s2polyline_simplifier.cc :
In file included from : In file included from s2/s2projections.cc18 ../src/s2/s2predicates.hv::
:o18In file included from 57i:
../src/s2/s2polyline_simplifier.h:
dIn file included from :In file included from  ../src/s2/s2projections.h63../src/s2/s1chord_angle.hA::
:p27In file included from 29p:
../src/s2/s1chord_angle.h:
eIn file included from :In file included from n../src/s2/r2.h29../src/s2/s1angle.hd::
:T2228r:
:
eIn file included from In file included from eIn file included from ../src/s2/util/math/vector.h../src/s2/s2point.h(../src/s2/s1angle.hC:::o362528r:
:
:
dIn file included from In file included from In file included from R../src/s2/base/logging.h../src/s2/util/coding/coder.h../src/s2/s2point.he:::p213627*:
:
:
 In file included from In file included from In file included from a/usr/local/clang/include/absl/log/check.h../src/s2/base/casts.h../src/s2/s2coder.hb:::s373623l:
:
:
_In file included from In file included from In file included from n/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.ho:::n212167n:
:
:
uIn file included from In file included from In file included from l/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/internal/status_internal.hl::: 413729t:
:
:
rIn file included from In file included from /usr/local/clang/include/absl/strings/cord.he/usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/log/internal/check_impl.h:e::1530,2621: :
:
55M/usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/log/internal/check_op.he: :t121298warning: h::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o4122
d::I   dwarning: 1530warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | n

itnil  i  f298ine121 | er | c  C o monrLesdtot: gh:oudMCn)seh;i
sugnn      esk| d                             ^aIg 
cthe/usr/local/clang/include/absl/base/nullability.hear&:ra* 241t oT:aro22b:sS::lCi _hnnote: nukexpanded from macro 'absl_nonnull'OonnknI
tnuel  lryl(241a a | t#odro(bespcfoleirna:n:steoLt  aCbrsoo<l<gr_dn*( Sosntadinb:snu:lllkb*_ a_ nsNiaoonncn_bnuullllo s
sctl      _onr| r                     ^oed
)na mn{<
uc      hl| a                                                      ^lIn file included from r
, s2/s2polyline.cc /usr/local/clang/include/absl/base/nullability.hTs::ri18241an:
:ikIn file included from 22t)../src/s2/s2polyline.h:s;:
 >33      note: &:
,| 
                                        ^expanded from macro 'absl_nonnull'In file included from       

../src/s2/s1angle.h| :/usr/local/clang/include/absl/base/nullability.h                       ^28:241
:
241 | In file included from #:/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.hd22::e:24127f ::
inote: 22In file included from nexpanded from macro 'absl_nonnull':../src/s2/s2coder.he
 :   note: 23a241expanded from macro 'absl_nonnull':
b | 
In file included from s#/usr/local/clang/include/absl/status/status.h  ld:e241_67nf | :
oiIn file included from #ndn/usr/local/clang/include/absl/status/internal/status_internal.hnee:uf 29lila:
n eb/usr/local/clang/include/absl/strings/cord.h_ Ns:aobnl986snl_:u_ln40nlo:o
nn       nn| warning: uu                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ll

ll    __986NN | oo n nn u lnvlou
il      dl|                       ^
P
r      e| p                     ^e
ndTreeToInlined(CordRep*In file included from  s2/s2predicates.cca:b18s:
lIn file included from _../src/s2/s2predicates.hn:o57n:
nIn file included from u../src/s2/s1chord_angle.hl:l29 :
tIn file included from r../src/s2/s1angle.he:e28,:

In file included from       ../src/s2/s2point.h| :                                       ^25
:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36241:
:In file included from 22../src/s2/base/casts.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b299s:l67_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   _299N | o n n u l l 
        |                       ^ 
                In file included from  In file included from s2/s2polyline.cc s2/s2projections.cc: :18 18:
 :
In file included from  In file included from ../src/s2/s2polyline.h ../src/s2/s2projections.h: :33 27:
 :
In file included from  In file included from ../src/s2/s1angle.h ../src/s2/r2.h: :28 22:
 :
In file included from  In file included from ../src/s2/s2point.h ../src/s2/util/math/vector.h: :27 36:
c:
In file included from oIn file included from ../src/s2/s2coder.hn../src/s2/base/logging.h:s:23t21:
 :
In file included from uIn file included from /usr/local/clang/include/absl/status/status.hn/usr/local/clang/include/absl/log/check.h:s:67i37:
g:
In file included from nIn file included from /usr/local/clang/include/absl/status/internal/status_internal.he/usr/local/clang/include/absl/log/internal/check_impl.h:d:29 21:
c:
/usr/local/clang/include/absl/strings/cord.hhIn file included from :a/usr/local/clang/include/absl/log/internal/check_op.h988r::*4137 :
:aIn file included from  b/usr/local/clang/include/absl/log/internal/strip.hswarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:_
26n:
o  n/usr/local/clang/include/absl/log/internal/log_message.h988n: | u158 l l :) ;v
32o      i:| d                                                                  ^  
Pwarning: r/usr/local/clang/include/absl/base/nullability.hetype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:p
241e:n22  d:T158 r | e note: eexpanded from macro 'absl_nonnull' T
Lo  oT241gr | e#ed(eMCfoirnedseRs eapabg*es la&b _sonlpo_ennnounrlanltu l_olNr ot<n<r(nveouel,l 
iM      de| t                     ^h*
o daIbdseln_tniuflilearb lmee t hvo)d ){;

            | |                                ^                                    ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257241::2322::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaubllle  __NNounlnlualbll
e      
|                            ^| 
                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2projections.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2projections.h:
:In file included from 27../src/s2/s2coder.h:
:In file included from 23../src/s2/r2.h:
:In file included from 22/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/util/math/vector.h:
:In file included from 36/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/base/logging.h:
:/usr/local/clang/include/absl/strings/cord.h21::
989In file included from :/usr/local/clang/include/absl/log/check.h31::37 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h  :98941 | :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26v:
o/usr/local/clang/include/absl/log/internal/log_message.hi:d161 :P38r:e pwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
dTr  e161e | ( C oLrodgRMeeps*s aIn file included from ags2/s2predicates.ccbe:s&18l :
o_pIn file included from ne../src/s2/s2predicates.hor:na57nt:
ourlIn file included from l<../src/s2/s1chord_angle.h <:(t29cro:
enIn file included from es../src/s2/s1angle.h,t:  28vM:
oeiIn file included from dt../src/s2/s2point.h*h :oa25db:
IsIn file included from ld_../src/s2/util/coding/coder.hen:nu36tl:
ilIn file included from fa../src/s2/base/casts.hib:lee36r :
  In file included from mv../src/s2/base/logging.h)e:t 21{h
:
o      In file included from d| )/usr/local/clang/include/absl/log/check.h                                     ^;:

37      :
| /usr/local/clang/include/absl/base/nullability.hIn file included from                               ^:/usr/local/clang/include/absl/log/internal/check_impl.h
257::/usr/local/clang/include/absl/base/nullability.h2123::
:241/usr/local/clang/include/absl/log/internal/check_op.h ::note: 22323expanded from macro 'absl_nullable'::
 46:note:    expanded from macro 'absl_nonnull'257
warning:  |   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#241
d | e#f  id323ne | f ei  nfaerb sialeb_nsndlu _lvnlooindna buAllbels  _l_FNNoourlnmlnaaubtllFlel

u      s      | h                     ^| (
S                      ^t
ringifySink* absl_nonnull sink,
      |                                              ^
In file included from s2/s2polyline.cc/usr/local/clang/include/absl/base/nullability.h::18241:
:In file included from 22../src/s2/s2polyline.h:: 33:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s1angle.h
:28:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l994 :_30N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 994                     ^ | 
    void CopyTo(std::string* absIn file included from ls2/s2projections.cc_:n18o:
nIn file included from n../src/s2/s2projections.hu:l27l:
 In file included from d../src/s2/r2.hs:t22):
 In file included from c../src/s2/util/math/vector.ho:n36s:
tIn file included from  ../src/s2/base/logging.h{:
21      :
| In file included from                              ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'41
:
In file included from   /usr/local/clang/include/absl/log/internal/strip.h241: | 26#:
d/usr/local/clang/include/absl/log/internal/log_message.he:f179i:n35e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n  o179n | n u lLlo g_MNeosnsnauglel&
       o| p                     ^e
rator<<(wchar_t* aIn file included from bs2/s2polyline.ccs:l18_:
nIn file included from u../src/s2/s2polyline.hl:l33a:
bIn file included from l../src/s2/s1angle.he: 28v:
)In file included from ;../src/s2/s2point.h
:      27| :
                                  ^In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h257::6723:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nullable':

/usr/local/clang/include/absl/strings/cord.h:999  :25728 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   999a | b s l _ nvuolilda bCloep y_TNouAlrlraabyl(ec
h      a| r                      ^*
 absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2projections.cc
:      18| :
                     ^In file included from 
../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190In file included from  | s2/s2polyline.cc : 18L:
oIn file included from g../src/s2/s2polyline.hM:e33s:
sIn file included from a../src/s2/s1angle.hg:e28&:
 In file included from o../src/s2/s2point.hp:e27r:
aIn file included from t../src/s2/s2coder.ho:r23<:
<In file included from (/usr/local/clang/include/absl/status/status.hs:t67d:
:In file included from :/usr/local/clang/include/absl/status/internal/status_internal.ho:s29t:
r/usr/local/clang/include/absl/strings/cord.he:a1012m:&37 :( *warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_n o1012n | n u l l  amb)s(ls:t:dc:o:rods_tirnetaemr&n aols:):)C;o
r      d| z                                         ^I
nf/usr/local/clang/include/absl/base/nullability.ho:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee fcionred za_bisnlf_on(o)n ncuolnls t_ N{o
n      n| u                                    ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 257                     ^:
23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullaIn file included from bs2/s2projections.ccl:e18
:
      In file included from | ../src/s2/s2projections.h                      ^:
27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:In file included from 41s2/s2polyline.cc:
:In file included from 18/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26../src/s2/s2polyline.h:
:/usr/local/clang/include/absl/log/internal/log_message.h33::
191In file included from :../src/s2/s1angle.h43::28 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:  23191:
 | In file included from  /usr/local/clang/include/absl/status/status.h :L67o:
gIn file included from M/usr/local/clang/include/absl/status/internal/status_internal.he:s29s:
a/usr/local/clang/include/absl/strings/cord.hg:e1017&: 51o:p ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tor< <1017( | s t d : :viooisd_ bsaeste_&c o(r*dazb_siln_fnoo(ncnourldl_ imn)t(esrtnda:l::i:oCso_rbdazsIen&f oo*s )a)b;s
l      _| n                                          ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22c:o rnote: dexpanded from macro 'absl_nonnull'z
_In file included from i  s2/s2predicates.ccIn file included from n241:s2/s2polyline_simplifier.ccf | o#18:)d:
18 eIn file included from :
{f../src/s2/s2predicates.hIn file included from 
i:../src/s2/s2polyline_simplifier.h      n57:| e:
63                                                  ^ In file included from :

a../src/s2/s1chord_angle.hIn file included from b/usr/local/clang/include/absl/base/nullability.hs:l../src/s2/s1chord_angle.h_:n29:241o:
29:nIn file included from :
22n../src/s2/s1angle.hIn file included from :u:../src/s2/s1angle.h lnote: 28expanded from macro 'absl_nonnull':l:

28 In file included from :
  _../src/s2/s2point.hIn file included from 241N:../src/s2/s2point.h | o#n25n:ud:
27lelIn file included from :
f
../src/s2/util/coding/coder.hIn file included from i      :../src/s2/s2coder.hn| 36:e                     ^:
23 
In file included from :
a../src/s2/base/casts.hIn file included from b:/usr/local/clang/include/absl/status/status.hs36:l:
_67In file included from n:
../src/s2/base/logging.hoIn file included from :n/usr/local/clang/include/absl/status/internal/status_internal.h21n::
u29In file included from l:
l/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h ::_371666N:
o:In file included from n48/usr/local/clang/include/absl/log/internal/check_impl.hn::u 21l:
lwarning: 
/usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      :
| 428                     ^:
44 :1666  | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
line   428C | oArBdS LC_oArTdT:R:IABdUvTaEn_cReEATnUdRRNeSa_dN(OCNhNaUrLILt ecroantsotr *c haabrs*l _anbosnln_unloln niutl,l
       M| a                                               ^k
eCh/usr/local/clang/include/absl/base/nullability.he:c241k:O22p:S tnote: rexpanded from macro 'absl_nonnull'i
ng  (241
 |       #| d                                           ^e
fiIn file included from n/usr/local/clang/include/absl/base/nullability.hes2/s2polyline.cc: :241a18:b:
s22In file included from l:_../src/s2/s2polyline.h n:note: o33expanded from macro 'absl_nonnull'n:

nIn file included from u../src/s2/s1angle.hl  l:241 28_ | N:
#oIn file included from nd../src/s2/s2point.hen:fu27lil:
n
In file included from e      ../src/s2/s2coder.h | :a                     ^23b
:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 /usr/local/clang/include/absl/strings/cord.h_:N1049o:n56n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1049 |   staticIn file included from  s2/s2predicates.ccb:o18o:
lIn file included from  ../src/s2/s2predicates.hG:e57t:
FIn file included from l../src/s2/s1chord_angle.ha:t29A:
uIn file included from x../src/s2/s1angle.h(:a28b:
sIn file included from l../src/s2/s2point.h:::25c:
oIn file included from r../src/s2/util/coding/coder.hd:_36In file included from i:
ns2/s2polyline_simplifier.ccIn file included from t:../src/s2/base/casts.he18:r:
36nIn file included from :
a../src/s2/s2polyline_simplifier.hIn file included from l:../src/s2/base/logging.h:63:::
21CIn file included from :
o../src/s2/s1chord_angle.hIn file included from r:/usr/local/clang/include/absl/log/check.hd29:R:
37eIn file included from :
p../src/s2/s1angle.hIn file included from *:/usr/local/clang/include/absl/log/internal/check_impl.h 28:a:
21bIn file included from :
s../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.hl::_27429n:
:oIn file included from 31n../src/s2/s2coder.h:n: u23warning: l:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lIn file included from 
 /usr/local/clang/include/absl/status/status.hr:e  67pIn file included from 429:
,s2/s2polyline_measures.cc | In file included from 
: /usr/local/clang/include/absl/status/internal/status_internal.h       18: |  :
                                                       ^TIn file included from 
291../src/s2/s2polyline_measures.h:
 /usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.hv:29:1241,:
1672: In file included from :22T../src/s2/s1angle.h41:2::  28 note: v:
warning: expanded from macro 'absl_nonnull'2In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
,../src/s2/s2point.h  
 :241c27 |  #odn:
1672esfti ncIn file included from  | In file included from eh../src/s2/s2coder.his2/s2projections.cc aarb*:n:s la_bnsoln23l18_nn:
i:
uolnlIn file included from nIn file included from n /usr/local/clang/include/absl/status/status.he../src/s2/s2projections.hu_lN: :lo nenx67v27upl:
o:
rlIn file included from iIn file included from t
e/usr/local/clang/include/absl/status/internal/status_internal.hd../src/s2/r2.h      x: :| t29C22                     ^):
o:

 In file included from rIn file included from A/usr/local/clang/include/absl/strings/cord.hd../src/s2/util/math/vector.hB:::S86:36In file included from L:
A:
s2/s2polyline.cc_/usr/local/clang/include/absl/strings/cord_analysis.hdIn file included from A:v../src/s2/base/logging.hT32a:T:n21R47c:
I:eIn file included from B (/usr/local/clang/include/absl/log/check.hCUhwarning: :TaEtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37r_I
:
NtOIn file included from eI   /usr/local/clang/include/absl/log/internal/check_impl.hrNa32:LtI | 21oNrs:
E*;iIn file included from  
z/usr/local/clang/include/absl/log/internal/check_op.hea      :_b| 41                              ^ts:

 l/usr/local/clang/include/absl/base/nullability.hIn file included from G_:n/usr/local/clang/include/absl/log/internal/strip.he241to::En2622sn:
:tu/usr/local/clang/include/absl/log/internal/log_message.h il:note: ml306expanded from macro 'absl_nonnull'a :
ti3  et:241d,  | M warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]es
miozr  yeU306_s | ta : gne_ 18(ba:
cybIn file included from ots../src/s2/s2polyline.hnel:ss_33t)n:
  oIn file included from C{n../src/s2/s1angle.ho
n:r      u28d| l:
Rd                                        ^elIn file included from e
f ../src/s2/s2point.hpi*/usr/local/clang/include/absl/base/nullability.hs:n :td::u27ea241n:
 b:iIn file included from as22q../src/s2/s2coder.hbl:u:s_ e23lnnote: _:
_oexpanded from macro 'absl_nonnull'pIn file included from nn
t/usr/local/clang/include/absl/status/status.hon  r:nu241<67nl | L:
ul#odIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hfl g:ilnrMe29p ee:
)_; s/usr/local/clang/include/absl/strings/cord.hN
as:o      ba1050n| sg:n                                              ^le_D45u
na:lolt /usr/local/clang/include/absl/base/nullability.hn
awarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n      u>241 
d| l:a                      ^l22t1050
 :a | _  _N onote: ; nexpanded from macro 'absl_nonnull'
 n 
      u |    ^   l
 241l  | /usr/local/clang/include/absl/base/nullability.h
 #:       d241e| f :                     ^i 22
n : e  note:  aexpanded from macro 'absl_nonnull' b 
 s l  In file included from _241s2/s2predicates.ccn | :o#18nd:
n ueIn file included from  l l f../src/s2/s2predicates.h ai:_bn57Nse:
ol In file included from n:a../src/s2/s1chord_angle.hn:b:uss29ltl:
lr_In file included from 
in../src/s2/s1angle.h      no:| gn28                     ^_n:

vuIn file included from il../src/s2/s2point.hel: w25_*:
 NIn file included from ao../src/s2/util/coding/coder.hbn:ns36ul:
In file included from l_In file included from ns2/s2polyline_measures.ccl../src/s2/base/casts.h
o::      n1836| n:
:
                     ^uIn file included from In file included from 
l../src/s2/s2polyline_measures.h../src/s2/base/logging.hl:: 2921f:
:
rIn file included from In file included from a../src/s2/s1angle.h/usr/local/clang/include/absl/log/check.hg::m2837e:
:
nIn file included from In file included from t../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_impl.h)::;27
21:
      :
In file included from /usr/local/clang/include/absl/log/internal/check_op.h| ../src/s2/s2coder.h:                                            ^:432
23::
13In file included from /usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/status/status.h: :warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67:
:
22In file included from :  /usr/local/clang/include/absl/status/internal/status_internal.h 432:note:  | expanded from macro 'absl_nonnull'29c
o:
n  sIn file included from 241t/usr/local/clang/include/absl/strings/cord.h |  #c:dheafri*86n ea:
 ba/usr/local/clang/include/absl/strings/cord_analysis.hsbls:_ln_onnonn50unl:ull lM a_kNe49oCnhn:euclk lO
warning: p      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S| t                     ^r

ing   (50T | 1s ivz1e,_ tT 2G evt2M,o
r      e| P            ^r
ec/usr/local/clang/include/absl/base/nullability.hi:sIn file included from 241es2/s2polyline.ccM::e2218m::
o In file included from r../src/s2/s2polyline.hynote: U:sexpanded from macro 'absl_nonnull'33a
:
gIn file included from e  (../src/s2/s1angle.h241c:o | 28#n:
sdtIn file included from  eC../src/s2/s2point.hofr:di27nR:
eeIn file included from  p../src/s2/s2coder.ha*: ba23bss:
ll_In file included from _n/usr/local/clang/include/absl/status/status.hon:on67nn:
nuIn file included from ul/usr/local/clang/include/absl/status/internal/status_internal.hll:l 29r e:
p/usr/local/clang/include/absl/strings/cord.h_):N;1054o
In file included from :n      s2/s2polyline_alignment.cc37n| ::u                                                ^17 l
:
warning: lIn file included from 
/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2polyline_alignment.h      :
:| 24124                     ^: :

221054In file included from : | ../src/s2/s2polyline.h  : 33 note: In file included from :
 expanded from macro 'absl_nonnull's2/s2predicates.ccIn file included from  
 :a../src/s2/s1angle.h18  b:s:
l24128In file included from : | :
#../src/s2/s2predicates.h:In file included from cd:e../src/s2/s2point.ho57rf::
di27In file included from _n:
e../src/s2/s1chord_angle.hiIn file included from n :a../src/s2/s2coder.ht29eb::
rs23lIn file included from n:
a_../src/s2/s1angle.hnIn file included from onl::/usr/local/clang/include/absl/status/status.hn28::Cu:
l67loIn file included from r:
d ../src/s2/s2point.h_In file included from NR:/usr/local/clang/include/absl/status/internal/status_internal.hoe25p:*n:
n29u lIn file included from :
al../src/s2/util/coding/coder.h
In file included from b/usr/local/clang/include/absl/strings/cord.hs:      :l36_| 82                     ^:
n:
o
In file included from In file included from n../src/s2/base/casts.hn/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:u:36l23:
l:
In file included from  In file included from ../src/s2/base/logging.hr/usr/local/clang/include/absl/crc/crc32c.h:e:21p32:
,:

In file included from       /usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/log/check.h| :In file included from :                                    ^115s2/s2polyline_measures.cc37
:::
52/usr/local/clang/include/absl/base/nullability.h18In file included from :::
/usr/local/clang/include/absl/log/internal/check_impl.h 241In file included from :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2polyline_measures.h2122
::
:29/usr/local/clang/include/absl/log/internal/check_op.h   :
note: :115In file included from expanded from macro 'absl_nonnull'433 | ../src/s2/s1angle.h
: :56   28:241 :
  |  In file included from warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d ../src/s2/s2point.h
e f:cionnes  27 t433 :
a | bssIn file included from  tlr../src/s2/s2coder.h _ n o _:n nf23 u o :
lrlm  _In file included from a t _ N /usr/local/clang/include/absl/status/status.hion t:n n u e67l lr
:
 n       In file included from a |                       ^/usr/local/clang/include/absl/status/internal/status_internal.hl : : 
:P a29 r :
s eIn file included from  d /usr/local/clang/include/absl/strings/cord.hF o:  86 :
 /usr/local/clang/include/absl/strings/cord_analysis.h : r56 m: a t56 B:In file included from cao s2/s2polyline.ccsn:swarning: e18*t type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 ac
In file included from bh../src/s2/s2polyline.hsa:r   l33_*n56:
 oa | In file included from nbns../src/s2/s1angle.hiszue:_ll28t_l:
  nIn file included from pGo../src/s2/s2point.hcen:)tnE27s
tui:
m      lIn file included from l|                                                     ^a../src/s2/s2coder.he
xt:epd23/usr/local/clang/include/absl/base/nullability.hrF:
a:itIn file included from 241reS/usr/local/clang/include/absl/status/status.hh:axr:e22Mt67:e):
 m oIn file included from rnote: {/usr/local/clang/include/absl/status/internal/status_internal.h
yexpanded from macro 'absl_nonnull'U:      
s29a| :
  g                                                       ^e241(/usr/local/clang/include/absl/strings/cord.hc
o | n:s/usr/local/clang/include/absl/base/nullability.h#1061:td :C241oe34:rfd:22iR ewarning: p:*n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] ea
bnote: s expanded from macro 'absl_nonnull'a bl
_1061nso  n | l241_n u | n ol#lvnodi nedfrue ilpCnle)o; 
 p_      ayNToo| bnAnru                                                       ^srla
ll_y
S/usr/local/clang/include/absl/base/nullability.hn      olnonwuP:| lalt h_241                     ^(Nc:
oh22nan:ru *lnote:  lexpanded from macro 'absl_nonnull'a
b
      s|   l                     ^_241
n | o#ndneufliln ed satb)s lc_onnosntn;u
l      l|                                   ^_
No/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:
       note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from In file included from s2/s2predicates.cc/usr/local/clang/include/absl/crc/crc32c.h::1832:
:
In file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/strings/str_format.h::57155:
:In file included from 36../src/s2/s1chord_angle.h:: 29:
warning: In file included from ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h:  25In file included from 155:
s2/s2polyline.cc | In file included from : ../src/s2/util/coding/coder.h18 ::
e36In file included from x:
../src/s2/s2polyline.hpIn file included from :l../src/s2/base/casts.h33i::
c36In file included from i:
../src/s2/s1angle.htIn file included from : ../src/s2/base/logging.h28F::
o21In file included from r:
../src/s2/s2point.hmIn file included from :a/usr/local/clang/include/absl/log/check.h27t:C:
37oIn file included from :
u../src/s2/s2coder.hIn file included from n:/usr/local/clang/include/absl/log/internal/check_impl.ht23:C:
21aIn file included from :
p/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/check_op.ht::u67451r:
:eIn file included from 1(/usr/local/clang/include/absl/status/internal/status_internal.h:i: n29warning: t:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
/usr/local/clang/include/absl/strings/cord.h :a1078b:  s33451l: | _ Anwarning: Botype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]SnL
n_uLlO lG1078 _ | pI )N  Ta:Eb RspNl_A:(L:p_c)Do Er{Fd}I_
Ni      En| _t                                   ^MeA
rKnEa/usr/local/clang/include/absl/base/nullability.hl_:C:241H::EC22Co:Kr _dnote: ORexpanded from macro 'absl_nonnull'Pe
_pS*  T 241Ra | Ib#NsdGle__fEniXonTneEn RuaNlb(lsb loT_oanlko)en;Rn
eu      pl| (l^) 
 _cN/usr/local/clang/include/absl/log/internal/check_op.hoo:nn449ns:ut31l&:l; 

      note:       | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'|                      ^
                                ^

  449/usr/local/clang/include/absl/base/nullability.h | : 241 :e22x:t enote: rexpanded from macro 'absl_nonnull'n
 temp  l241a | t#ed ecfoinnset In file included from  as2/s2polyline_alignment.ccbc:sh17la:
_rIn file included from n*../src/s2/s2polyline_alignment.ho :na24nb:
usIn file included from ll../src/s2/s2polyline.hl_: n33_o:
NnIn file included from on../src/s2/s1angle.hnu:nl28ul:
l In file included from lM../src/s2/s2point.h
a:      k27| e:
                     ^CIn file included from 
h../src/s2/s2coder.he:c23k:
OIn file included from p/usr/local/clang/include/absl/status/status.hS:t67r:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hg:(29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h\:In file included from 
82s2/s2polyline.cc      :
:| In file included from 18                              ^/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:

:In file included from 23../src/s2/s2polyline.h/usr/local/clang/include/absl/base/nullability.h:
::In file included from 33241/usr/local/clang/include/absl/crc/crc32c.h:
::In file included from 2232../src/s2/s1angle.h::
: 28/usr/local/clang/include/absl/strings/str_format.h:
note: :In file included from expanded from macro 'absl_nonnull'164../src/s2/s2point.h
::8  27:241:
  | In file included from warning: #../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d:
e23f:
i  In file included from n164/usr/local/clang/include/absl/status/status.he | :  67a :
biIn file included from sn/usr/local/clang/include/absl/status/internal/status_internal.hlt:_*29n :
oa/usr/local/clang/include/absl/strings/cord.hnb:ns1079ul:l_33ln: o _nwarning: Nntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ou
nlnlu  lU1079ln | 
u       s | ea                     ^db
(s)l :{: croerIn file included from tds2/s2predicates.ccu_:ri18nn:
 tIn file included from pe../src/s2/s2predicates.h_r:;n57 a:
}lIn file included from 
:../src/s2/s1chord_angle.h      ::C| o29       ^r:

dIn file included from R../src/s2/s1angle.he/usr/local/clang/include/absl/base/nullability.hp::*28241 :
:aIn file included from 22b../src/s2/s2point.h:s: l25note: _:
expanded from macro 'absl_nonnull'nIn file included from o
../src/s2/util/coding/coder.hn:n  36u241:
l | lIn file included from # ../src/s2/base/casts.hdT:ea36fk:
ieIn file included from nR../src/s2/base/logging.hee: p21a(:
b)In file included from s /usr/local/clang/include/absl/log/check.hl&:_&37n;:
o
In file included from n      /usr/local/clang/include/absl/log/internal/check_impl.hn| :u                                ^21l
:
l/usr/local/clang/include/absl/log/internal/check_op.h /usr/local/clang/include/absl/base/nullability.h:_:451N241:o:1n22:n: u warning: lnote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lexpanded from macro 'absl_nonnull'


      /usr/local/clang/include/absl/log/internal/check_op.h| :                       ^450241
: | 25#:d enote: fexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
ne   450a | b s l _ n o In file included from nxs2/s2polyline_alignment.ccn,:u 17lx:
l,In file included from   ../src/s2/s2polyline_alignment.h_c:No24onn:
snIn file included from tu../src/s2/s2polyline.h l:cl33h
:
a      In file included from r| ../src/s2/s1angle.h*                     ^: 
28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from )/usr/local/clang/include/absl/status/status.h
:      67| :
                        ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2282::
 In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h  :24132 | :
#/usr/local/clang/include/absl/strings/str_format.hd:e165f:i8n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl  _165n | o n niunltl*  _aNbosnln_unloln
n      u| l                     ^l
 p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2predicates.ccn:o18n:
nIn file included from u../src/s2/s2predicates.hl:l57 :
_In file included from In file included from N../src/s2/s1chord_angle.hs2/s2polyline.cco::n2918n:
:
uIn file included from In file included from l../src/s2/s1angle.h../src/s2/s2polyline.hl::
2833      :
:
| In file included from In file included from                      ^../src/s2/s2point.h../src/s2/s1angle.h
::2528:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2point.h::3627:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.h::2167:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/internal/status_internal.h::3729:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/cord.h::211116:
:37/usr/local/clang/include/absl/log/internal/check_op.h:: 452:warning: 1:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1116 |    452  | cAoBnSsLt_ LcOrGc__IiNnTtEeRrNnAaLl_:D:ECFrIcNCEo_rMdASKtEa_tCeH*E CaKb_sOlP__nSuTlRlIaNbGl_eE XMTaEyRbNe(GienttC6r4c_Cto)r;d
S      t| a^t
e(/usr/local/clang/include/absl/log/internal/check_op.h): 449c:o31n:s tnote: ;expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

      |                                     ^
  449 | /usr/local/clang/include/absl/base/nullability.h : 257e:x23t:e rnote: nexpanded from macro 'absl_nullable' 
te  m257p | l#adteef icnoen satb sclh_anru*l laabbslIn file included from le_s2/s2polyline_alignment.cc n_:oN17un:
lnIn file included from lu../src/s2/s2polyline_alignment.hal:bl24l :
eMIn file included from 
a../src/s2/s2polyline.h      k:| e33                      ^C:

hIn file included from e../src/s2/s1angle.hc:k28O:
pIn file included from S../src/s2/s2point.ht:r27i:
nIn file included from g../src/s2/s2coder.h(: 23 :
 In file included from \/usr/local/clang/include/absl/status/status.h
:      67| :
                              ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2282::
 In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hnote: :In file included from expanded from macro 'absl_nonnull'23s2/s2polyline.cc
:
:In file included from 18  /usr/local/clang/include/absl/crc/crc32c.h:
241:In file included from  | 32../src/s2/s2polyline.h#:
:d/usr/local/clang/include/absl/strings/str_format.h33e::
f380In file included from i:../src/s2/s1angle.hn43:e:28  :
aIn file included from bwarning: ../src/s2/s2point.hs:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l27
_:
nIn file included from o../src/s2/s2coder.h  n:380n23 | u:
slIn file included from tl/usr/local/clang/include/absl/status/status.hd ::_67:N:
soIn file included from tn/usr/local/clang/include/absl/status/internal/status_internal.hrn:iu29nl:
gl/usr/local/clang/include/absl/strings/cord.h&
:       1120S| :                     ^t30
r:A pwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ndF o1120r | In file included from m s2/s2predicates.cca :tv18(o:
siIn file included from td../src/s2/s2predicates.hd ::C57:os:
ptIn file included from yr../src/s2/s1chord_angle.hTi:on29Ag:
r*In file included from r ../src/s2/s1angle.haa:yb28Is:
mlIn file included from p_../src/s2/s2point.hln:(o25cn:
hnIn file included from au../src/s2/util/coding/coder.hrl:*l36  :
adIn file included from bs../src/s2/base/casts.hst:l,36_
:
n      In file included from o| ../src/s2/base/logging.hn                                          ^:n
21u:
lIn file included from /usr/local/clang/include/absl/base/nullability.hl/usr/local/clang/include/absl/log/check.h: :d24137s::
t22In file included from ):/usr/local/clang/include/absl/log/internal/check_impl.h  :c21onote: :
nexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.hs
:t452;  :
2411       | :| #                              ^d
warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f/usr/local/clang/include/absl/base/nullability.h
i:n/usr/local/clang/include/absl/log/internal/check_op.h241e:: 45022a::b25 s:note: l expanded from macro 'absl_nonnull'_
note: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'  o
241n | n#  ud450le | lf  i _n Ne o  nanb usxll,l_ 
nx      o,| n                      ^nc
uolnls t_ Ncohnanru*l la
b      s| l                     ^_
nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFIn file included from Is2/s2polyline_alignment.ccN:E17_:
MIn file included from A../src/s2/s2polyline_alignment.hK:E24_:
CIn file included from H../src/s2/s2polyline.hE:C33K:
_In file included from O../src/s2/s1angle.hP:_28S:
TIn file included from R../src/s2/s2point.hI:N27G:
_In file included from E../src/s2/s2coder.hX:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.h(:u67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h6:429_:
tIn file included from )/usr/local/clang/include/absl/strings/cord.h;:
82      :
| In file included from ^/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h449::3231:
: /usr/local/clang/include/absl/strings/str_format.h:note: 440expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
24:   warning: 449type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  ex  t440e | rinn tt eFmPprliantteF (csotnds:t: FcIhLaEr**  aabbssll__nnoonnnnuullll  oMuatkpeuCth,e cckoOnpsStt rFionrgm(a t S p\e
c      <| A                              ^r
gs/usr/local/clang/include/absl/base/nullability.h.:.241.:>22&:  fnote: oexpanded from macro 'absl_nonnull'r
ma  t241, | 
#      d| e                       ^f
ine/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _NIn file included from os2/s2predicates.ccn:n18u:
lIn file included from l../src/s2/s2predicates.h
:      57| :
                     ^In file included from 
../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const cIn file included from hs2/s2polyline_alignment.cca:r17*:
 In file included from a../src/s2/s2polyline_alignment.hb:s24l:
_In file included from n../src/s2/s2polyline.ho:n33n:
uIn file included from l../src/s2/s1angle.hl:)28
:
      In file included from | ../src/s2/s2point.h                        ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f82i:
nIn file included from e/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :a23b:
sIn file included from l/usr/local/clang/include/absl/crc/crc32c.h_:n32o:
n/usr/local/clang/include/absl/strings/str_format.hn:u469l:l20 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null  
469       | | i                     ^n
t SNPrintF(char* absl_nonnull outputIn file included from ,s2/s2predicates.cc :s18t:
dIn file included from :../src/s2/s2predicates.h::s57i:
zIn file included from e../src/s2/s1chord_angle.h_:t29 :
sIn file included from i../src/s2/s1angle.hz:e28,:

In file included from       ../src/s2/s2point.h| :                   ^25
:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36241:
:In file included from 22../src/s2/base/casts.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b454s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   454_ | NAoBnSnLu_lLlO
G      _| I                     ^N
TERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakIn file included from es2/s2polyline_alignment.ccC:h17e:
cIn file included from k../src/s2/s2polyline_alignment.hO:p24S:
tIn file included from r../src/s2/s2polyline.hi:n33g:
(In file included from  ../src/s2/s1angle.h : 28\:

In file included from       ../src/s2/s2point.h| :                              ^27
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241In file included from  | /usr/local/clang/include/absl/strings/cord.h#:d82e:
fIn file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/crc/crc32c.hs:l32_:
n/usr/local/clang/include/absl/strings/str_format.ho:n503n:u20l:l  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
onn  u503l | l 
       F| o                     ^r
matRawSIn file included from is2/s2predicates.ccn:k18(:
TIn file included from *../src/s2/s2predicates.h :a57b:
sIn file included from l../src/s2/s1chord_angle.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from r../src/s2/s2point.ha:w25):
 In file included from  ../src/s2/util/coding/coder.h/:/36 :
NIn file included from O../src/s2/base/casts.hL:I36N:
TIn file included from 
../src/s2/base/logging.h      :| 21                   ^:

In file included from /usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h::2221::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'454
:1:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
e/usr/local/clang/include/absl/log/internal/check_op.hf:i450n:e25 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
_n  o450n | n u l l   _ Nxo,n nxu,l lc
o      n| s                     ^t
 char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2projections.ccs2/s2predicates.cc::1818:
:
In file included from In file included from ../src/s2/s2projections.h../src/s2/s2predicates.h::2757:
:
In file included from In file included from ../src/s2/r2.h../src/s2/s1chord_angle.h::2229:
:
In file included from In file included from ../src/s2/util/math/vector.h../src/s2/s1angle.h::3628:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2point.h::2125:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/util/coding/coder.h::3736:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/base/casts.h::2136:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/base/logging.h::4121:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/log/check.h::2637:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/log_message.h::21319:
:/usr/local/clang/include/absl/log/internal/check_op.h20::458 :1warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
    319458 |  |  A B S Lc_oLnOsGt_ IwNcThEaRIn file included from rNs2/s2polyline_simplifier.cc_A:tL*18_ :
DaIn file included from Eb../src/s2/s2polyline_simplifier.hFs:Il63N_:
EnIn file included from _u../src/s2/s1chord_angle.hMl:Al29Ka:
EbIn file included from _l../src/s2/s1angle.hCe:H 28Ec:
CoIn file included from Kn../src/s2/s2point.h_s:tO&27P :
_vIn file included from )S../src/s2/s2coder.h;T
:R      23I| :
N                   ^In file included from G
/usr/local/clang/include/absl/status/status.h_:E67X/usr/local/clang/include/absl/base/nullability.h:
T:E/usr/local/clang/include/absl/status/internal/status_internal.h257R:N:119(23:c:14o :n snote: warning: texpanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 

s  t257d | :#:dsetfri  in119en  | ga & b)sS;lt
_an      tu| lu^lsa
bR/usr/local/clang/include/absl/log/internal/check_op.hel:ep449 *_: N31au:bl lsnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_a
nbo  lne449
n |       u | l                      ^ le
 In file included from xCs2/s2polyline_alignment.cctl:eo17nre:
n( In file included from 
t../src/s2/s2polyline_alignment.he      :m| p24l             ^:
a
In file included from t../src/s2/s2polyline.he: 33/usr/local/clang/include/absl/base/nullability.hc:
:oIn file included from n241../src/s2/s1angle.hs::t2228 ::
c In file included from h../src/s2/s2point.hanote: :rexpanded from macro 'absl_nonnull'27*
:
 In file included from a../src/s2/s2coder.h  b:s24123l | :
_#In file included from d/usr/local/clang/include/absl/status/status.hen:In file included from foi67s2/s2projections.ccnn:
:neuIn file included from 18 la/usr/local/clang/include/absl/status/internal/status_internal.h:
lb sMl:In file included from a_kne29../src/s2/s2projections.hoC:
h:nIn file included from neu27/usr/local/clang/include/absl/strings/cord.hclk:
:lO In file included from 82p_../src/s2/r2.h:
SNt:In file included from orn22/usr/local/clang/include/absl/crc/internal/crc_cord_state.hinn:
:ugl(In file included from 23l 
../src/s2/util/math/vector.h:
        :In file included from | \                     ^
36/usr/local/clang/include/absl/crc/crc32c.h
      :
:| In file included from 32                              ^../src/s2/base/logging.h:

:/usr/local/clang/include/absl/strings/str_format.h21/usr/local/clang/include/absl/base/nullability.h::
:860In file included from 241:/usr/local/clang/include/absl/log/check.h:43:22:37: :
 warning: In file included from note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull'
:
21:
In file included from     /usr/local/clang/include/absl/log/internal/check_op.h241860: |  | #41In file included from  d eff:
s2/s2polyline_simplifier.ccriinIn file included from :een da b/usr/local/clang/include/absl/log/internal/strip.h18vsol::
i_dn oAn26In file included from bnsu:
../src/s2/s2polyline_simplifier.hllFlo :/usr/local/clang/include/absl/log/internal/log_message.hr_m63:Na:
t321oIn file included from nFn:../src/s2/s1chord_angle.hluu52:lslh:29
( :
      FIn file included from owarning: | ../src/s2/s1angle.h                     ^rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
m
28a:
tIn file included from S  ../src/s2/s2point.hi321:n | 27ki:
*nIn file included from  l../src/s2/s2coder.hIn file included from ai:ns2/s2predicates.cceb 23:sL:
18loIn file included from :
_g/usr/local/clang/include/absl/status/status.hMIn file included from ens:../src/s2/s2predicates.hos67:na:
57ng:
/usr/local/clang/include/absl/status/internal/status_internal.hueIn file included from &:l../src/s2/s1chord_angle.hl 125: L:29so14g:
Mie:In file included from ns swarning: ../src/s2/s1angle.hkatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g:e,
28:
  :
:      125In file included from o| p | ../src/s2/s2point.h                                          ^e r:
 a25St:
/usr/local/clang/include/absl/base/nullability.htoIn file included from :ar../src/s2/util/coding/coder.h241t<::u<3622s(:
:RwIn file included from  ec../src/s2/base/casts.hhnote: pexpanded from macro 'absl_nonnull'*: a
r36a  _:
b241tIn file included from *s  | ../src/s2/base/logging.hla#:_bd21nsel:
_ofIn file included from innu/usr/local/clang/include/absl/log/check.hlnn:ule37la :
lbaIn file included from  lb/usr/local/clang/include/absl/log/internal/check_impl.hCes:l l21ov_:
n)n /usr/local/clang/include/absl/log/internal/check_op.heoA{:
nnnduU458n      l:lr | 1                                                   ^e_f:(
N o
/usr/local/clang/include/absl/base/nullability.hwarning: n      n:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| u             ^257
l
l:/usr/local/clang/include/absl/log/internal/check_op.h
/usr/local/clang/include/absl/base/nullability.h23:      ::450| 241                     ^ ::
25note: 22expanded from macro 'absl_nullable'::
  note:   note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'expanded from macro 'absl_nonnull'257

 | #    d450e241 | f |  #i nd ee  fIn file included from  aibs2/s2polyline_alignment.ccs ln_:xen17u, :
l axIn file included from ,lba../src/s2/s2polyline_alignment.h sb:lcl24_eo :
nn_In file included from osnN../src/s2/s2polyline.htnu: ucl33lhl:
la aIn file included from r_*b../src/s2/s1angle.hlNe 
:oa      28nb| :
nsu                      ^In file included from ll_
../src/s2/s2point.hln
:o      27n| :
n                     ^In file included from u
../src/s2/s2coder.hl:l23):

In file included from       /usr/local/clang/include/absl/status/status.h| :                        ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 82:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
  In file included from 241/usr/local/clang/include/absl/crc/crc32c.h | :#32d:
eIn file included from /usr/local/clang/include/absl/strings/str_format.hfs2/s2polyline_simplifier.cc:i:867n18:e:
60 In file included from :a../src/s2/s2polyline_simplifier.h b:warning: s63type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:

_In file included from n../src/s2/s1chord_angle.ho:n  29n867:
u | lIn file included from  l../src/s2/s1angle.h  :e_28xN:
poIn file included from ln../src/s2/s2point.hinc:uil27lt:

 In file included from       F../src/s2/s2coder.h| o:                     ^r23
m:
aIn file included from t/usr/local/clang/include/absl/status/status.hS:iIn file included from 67ns2/s2polyline.cc:
k:/usr/local/clang/include/absl/status/internal/status_internal.h(18:s:
128tIn file included from :r../src/s2/s2polyline.h_14:f:33o :
rIn file included from mwarning: a../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tIn file included from :
_s2/s2predicates.cc28i::
n  18In file included from t128:
../src/s2/s2point.he | In file included from :r ../src/s2/s2predicates.h27n :S:
ta57lIn file included from a:
t:../src/s2/s2coder.h:In file included from u:F../src/s2/s1chord_angle.hs23Ro:r:
e29mIn file included from p:
a/usr/local/clang/include/absl/status/status.h*In file included from  t:S../src/s2/s1angle.ha67bi:n:
s28kIn file included from l:
_In/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from mo:../src/s2/s2point.hpn29:ln:
25*u :
a/usr/local/clang/include/absl/strings/cord.hlIn file included from lb:s../src/s2/util/coding/coder.h 1140Cl:_:l36onn49e:
Ao:nIn file included from n dn../src/s2/base/casts.huwarning: U:ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ln36r
e f:
s(In file included from ))  ../src/s2/base/logging.h
c1140:      o | n21|  s:
t                                                           ^; 
In file included from 
       /usr/local/clang/include/absl/log/check.h /usr/local/clang/include/absl/base/nullability.h| :             ^ :37
 241:
 : In file included from /usr/local/clang/include/absl/base/nullability.h22 /usr/local/clang/include/absl/log/internal/check_impl.h:: :241  21:note:  :
22expanded from macro 'absl_nonnull' :/usr/local/clang/include/absl/log/internal/check_op.h
  :   459note: 241 : expanded from macro 'absl_nonnull' | 1 
#:   d  241ewarning:   | f#type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] id
e n fe   i 459 na |  ebAs  Balb sSl__ nLn_ ooLnCnoOnnruGluld __lNRIloenNn upTE_lElx
NRt      oNe| nAnr                     ^Lun
_laDllE
*F       I| aN                     ^bE
s_lM_AnKoEn_nCuHlElC Kr_eOpP)_;S
T      R| I                                                ^N
G_EIn file included from X/usr/local/clang/include/absl/base/nullability.hTs2/s2polyline_alignment.cc:E:241R17:N:
22(In file included from :c../src/s2/s2polyline_alignment.h o:note: n24expanded from macro 'absl_nonnull's:

tIn file included from  ../src/s2/s2polyline.h  a:241b33 | s:
#lIn file included from :d../src/s2/s1angle.h:e:sf28ti:
rnIn file included from ie../src/s2/s2point.hn :ag27b_:
svIn file included from li../src/s2/s2coder.h_e:nw23o&:
n)In file included from n;/usr/local/clang/include/absl/status/status.hu
:l      67l| :
 ^In file included from _
/usr/local/clang/include/absl/status/internal/status_internal.hN:o/usr/local/clang/include/absl/log/internal/check_op.h29n::
n449In file included from u:/usr/local/clang/include/absl/strings/cord.hl31:l:82
 :
      In file included from note: | /usr/local/clang/include/absl/crc/internal/crc_cord_state.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'                     ^:

23:
In file included from   /usr/local/clang/include/absl/crc/crc32c.h449: | 32 :
 /usr/local/clang/include/absl/strings/str_format.he:x869t:e40r:n  warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
mplatIn file included from es2/s2polyline.cc :c18o:
nIn file included from s../src/s2/s2polyline.ht: 33c:
hIn file included from a../src/s2/s1angle.hr:*28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :M67a:
kIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hC:h29e:
c/usr/local/clang/include/absl/strings/cord.hk:O1146p:S10t:r iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
(    1146\ | 
C      o| r                              ^d
Re/usr/local/clang/include/absl/base/nullability.hp:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld eNfeiwnEex taebrsnla_lnRoenpn(ualbls l_:N:osntnruilnlg
_      v| i                     ^e
w data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2predicates.cc241: | 18#:
dIn file included from e../src/s2/s2predicates.hf:i57n:
eIn file included from  ../src/s2/s1chord_angle.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l25 :
_In file included from N../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl:
36      :
| In file included from                      ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2predicates.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2predicates.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h57::
29In file included from :
../src/s2/s1chord_angle.h:/usr/local/clang/include/absl/strings/cord.h29::
1159In file included from :../src/s2/s1angle.h17::28 :
In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/util/coding/coder.h: 361159:
 | In file included from i../src/s2/base/casts.hn:l36i:
nIn file included from e../src/s2/base/logging.h :C21o:
rIn file included from d/usr/local/clang/include/absl/log/check.hR:e37p:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n460o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
NewE  x460t | eArBnSaLl_RLeOpG(_
I      N| T                ^E
RNA/usr/local/clang/include/absl/base/nullability.hL:_241D:E22F:I Nnote: Eexpanded from macro 'absl_nonnull'_
MA  K241E | _#CdHeEfCiKn_eO Pa_bSsTlR_InNoGn_nEuXlTlE R_NN(ocnonnusltl 
c      h| a                     ^r
* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2projections.cce:f18i:
nIn file included from e../src/s2/s2projections.h :a27b:
sIn file included from l../src/s2/r2.h_:n22o:
nIn file included from n../src/s2/util/math/vector.hu:l36l:
 In file included from _../src/s2/base/logging.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from In file included from s2/s2predicates.cc/usr/local/clang/include/absl/log/internal/strip.h::1826:
:
In file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/log/internal/log_message.h::57340:
:In file included from 46../src/s2/s1chord_angle.h:: 29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h  :34025 | :
 In file included from  ../src/s2/util/coding/coder.hf:r36i:
eIn file included from n../src/s2/base/casts.hd: 36v:
oIn file included from i../src/s2/base/logging.hd: 21A:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:F37o:
rIn file included from m/usr/local/clang/include/absl/log/internal/check_impl.ha:t21F:
l/usr/local/clang/include/absl/log/internal/check_op.hu:s460h:(66S:t rwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
gif  y460In file included from S | s2/s2polyline.ccAi:Bn18kS:
*LIn file included from    _../src/s2/s2polyline.h869aLOG_INTER: | bN As lLs_33_tDn:
rE_oIn file included from FfIn../src/s2/s1angle.hoNrEmn:_aMu28tA_l:
KiElIn file included from  n_../src/s2/s2point.hCst:Hie27Enrk:
,C
nIn file included from aKl      ../src/s2/s2coder.h_:O| :                                             ^:PF_oSrT23R
m:
aIIn file included from NtGS/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h_i::EnXk24167TI::
EmRpN22In file included from l(*:/usr/local/clang/include/absl/status/internal/status_internal.hc  :oannote: 29expanded from macro 'absl_nonnull'bs:

/usr/local/clang/include/absl/strings/cord.ht:  1183241 : | c47#hs:dal er_warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]of*
 niann busle1183ll_  |   n asbos i n kn_l _nn;o
n nu      l l ) ;u|                                         ^
l l  
_       N| /usr/local/clang/include/absl/base/nullability.h                                                                 ^ o:
 n241n u /usr/local/clang/include/absl/base/nullability.h:l l:22 
241:       :  | 22                     ^note:  : 
expanded from macro 'absl_nonnull'  
note:  expanded from macro 'absl_nonnull' 
   241    |  241#  | d #e df ei fn ie n Ceao brasdblRs_elnp_o*nn onanubnlsulll _l_n Nu_olNnlonanubnllulel
 l      r
| e                           ^p| 
)                     ^

      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2predicates.cc:: 18:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2predicates.h
:57:
  In file included from 257../src/s2/s1chord_angle.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.hu:l36l:
aIn file included from b../src/s2/base/casts.hl:e36 :
_In file included from N../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                      ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const charIn file included from *s2/s2polyline.cc :a18b:
sIn file included from l../src/s2/s2polyline.h_:n33o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from M../src/s2/s2point.ha:k27e:
CIn file included from h../src/s2/s2coder.he:c23k:
OIn file included from p/usr/local/clang/include/absl/status/status.hS:t67r:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hg:(29 :
 /usr/local/clang/include/absl/strings/cord.h :\1222
:      52| :                              ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:  note: 1222expanded from macro 'absl_nonnull' | 
in  l241i | n#ed evfoiinde  Caobrsdl:_:nIonnlniunlelR e_pN:o:nSnwualpl(
C      o| r                     ^d
::InlIn file included from is2/s2predicates.ccn:e18R:
eIn file included from p../src/s2/s2predicates.h*: 57a:
bIn file included from s../src/s2/s1chord_angle.hl:_29n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hr:h25s:
)In file included from  ../src/s2/util/coding/coder.h{:
36      :
| In file included from                                                    ^../src/s2/base/casts.h
:36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :37note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
241/usr/local/clang/include/absl/log/internal/check_op.h | :#462d:e24f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab  s462l | _ n o n ncuolnls t_ Nsoingnnueldl 
c      h| a                     ^r
* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2polyline.ccd:e18f:
iIn file included from n../src/s2/s2polyline.he: 33a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2predicates.cc
:18:
In file included from ../src/s2/s2predicates.h: 571230:
 | In file included from i../src/s2/s1chord_angle.hn:l29i:
nIn file included from e../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 25c:
hIn file included from a../src/s2/util/coding/coder.hr:*36 :
aIn file included from b../src/s2/base/casts.hs:l36_:
nIn file included from u../src/s2/base/logging.hl:l21a:
bIn file included from l/usr/local/clang/include/absl/log/check.he: 37C:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hd::21::
I/usr/local/clang/include/absl/log/internal/check_op.hn:l461i:n1e:R ewarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:da  t461a | (A)B ScLo_nLsOtG _{I
N      T| E                   ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:D257E:F23I:N Enote: _expanded from macro 'absl_nullable'M
AK  E257_ | C#HdEeCfKi_nOeP _aSbTsRlI_NnGu_lElXaTbElReN (_
N      u| l^l
ab/usr/local/clang/include/absl/log/internal/check_op.hl:e450
:      25| :                      ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2polyline.ccd:e18f:
iIn file included from n../src/s2/s2polyline.he: 33a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const In file included from cs2/s2predicates.cch:a18r:
*In file included from  ../src/s2/s2predicates.ha:b57s:
lIn file included from _../src/s2/s1chord_angle.hn:o29n:
nIn file included from u../src/s2/s1angle.hl:l28 :
CIn file included from o../src/s2/s2point.hr:d25::
:In file included from I../src/s2/util/coding/coder.hn:l36i:
nIn file included from e../src/s2/base/casts.hR:e36p:
:In file included from :../src/s2/base/logging.ha:s21_:
cIn file included from h/usr/local/clang/include/absl/log/check.ha:r37s:
(In file included from )/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t463 :{1
:       | warning:                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  241463: | 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
LO  G241_ | I#NdTeEfRiNnAeL _aDbEsFlI_NnEo_nMnAuKlEl_ C_HNEoCnKn_uOlPl_
S      T| R                     ^I
NG_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* In file included from as2/s2polyline.ccb:s18l:
_In file included from n../src/s2/s2polyline.ho:n33n:
uIn file included from l../src/s2/s1angle.hl M:a28k:
eIn file included from C../src/s2/s2point.hh:e27c:
kIn file included from O../src/s2/s2coder.hp:S23t:
rIn file included from i/usr/local/clang/include/absl/status/status.hn:g67(:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :\29
:
      | /usr/local/clang/include/absl/strings/cord.h                              ^:
1239:38/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
   1239241 |  | i#ndleifnien ea basbls:l:_cnoorndn_uilnlt e_rNnoanln:u:lClo
r      d| R                     ^e
p* abIn file included from ss2/s2predicates.ccl:_18n:
oIn file included from n../src/s2/s2predicates.hn:u57l:
lIn file included from  ../src/s2/s1chord_angle.hC:o29r:
dIn file included from :../src/s2/s1angle.h::I28n:
lIn file included from i../src/s2/s2point.hn:e25R:
eIn file included from p../src/s2/util/coding/coder.h:::36a:
sIn file included from _../src/s2/base/casts.ht:r36e:
eIn file included from (../src/s2/base/logging.h):
21      :
| In file included from                                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22:/usr/local/clang/include/absl/log/internal/check_op.h :464note: :expanded from macro 'absl_nonnull'26
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#d  e464f | i n e   acbosnls_tn ounnnsuilgln e_dN ocnhnaurl*l 
a      b| s                     ^l
_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2polyline.cc| :                     ^18
:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2predicates.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2predicates.h../src/s2/s2coder.h::5723:
:
In file included from In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/status/status.h::2967:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/internal/status_internal.h::2829:
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::251245:
:In file included from 38In file included from ../src/s2/util/coding/coder.h:s2/s2projections.cc: :warning: 3618type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:

In file included from In file included from ../src/s2/base/casts.h../src/s2/s2projections.h: :36124527:
 | :
In file included from iIn file included from ../src/s2/base/logging.hn../src/s2/r2.h:l:21i22:
n:
In file included from eIn file included from /usr/local/clang/include/absl/log/check.h ../src/s2/util/math/vector.h:a:37b36:
s:
In file included from lIn file included from /usr/local/clang/include/absl/log/internal/check_impl.h:../src/s2/base/logging.h::c:21o21:
r:
/usr/local/clang/include/absl/log/internal/check_op.hdIn file included from :_/usr/local/clang/include/absl/log/check.h464i::n3726t:
:eIn file included from  r/usr/local/clang/include/absl/log/internal/check_impl.hwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:a
l21/usr/local/clang/include/absl/base/nullability.h::
::In file included from 241C/usr/local/clang/include/absl/log/internal/check_op.h:o:22r41:d:
 RIn file included from note: eexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/strip.hp
*:   a26241b:
 | s#/usr/local/clang/include/absl/log/internal/log_message.hld:_en398fui:lnl11ea b:alb eswarning:  lCtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_on
rodn:  n:398uIln | l l  i _n NevooRneinpdu:l*:l ta
rb      es| e                     ^l(
_)n
u      In file included from l| s2/s2predicates.cc                                     ^l:
a18b:
/usr/local/clang/include/absl/base/nullability.hlIn file included from e: ../src/s2/s2predicates.h257c:o:57n23s:
:tIn file included from & ../src/s2/s1chord_angle.h note: v:expanded from macro 'absl_nullable')29;

:
        In file included from 257| ../src/s2/s1angle.h |           ^:#
28d:
eIn file included from /usr/local/clang/include/absl/base/nullability.hf../src/s2/s2point.hi::n25725e::
 23In file included from a:../src/s2/util/coding/coder.hb :s36lnote: :
expanded from macro 'absl_nullable'_In file included from n
../src/s2/base/casts.hu:l  36l257:
a | In file included from b#../src/s2/base/logging.hld:ee21f :
i_In file included from nN/usr/local/clang/include/absl/log/check.hue:l 37la:
abIn file included from bs/usr/local/clang/include/absl/log/internal/check_impl.hll:e_21
n:
      /usr/local/clang/include/absl/log/internal/check_op.hu| :l                      ^l463a
:b1l:e  warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
ull  a463b | lAeB
S      L| _                      ^L
OG_INTERNAL_DEFINE_MAKE_CHECK_In file included from Os2/s2projections.ccP:_18S:
TIn file included from R../src/s2/s2projections.hI:N27G:
_In file included from E../src/s2/r2.hX:T22E:
RIn file included from N../src/s2/util/math/vector.h(:
36      :
| In file included from ^../src/s2/base/logging.h
:21/usr/local/clang/include/absl/log/internal/check_op.h:
In file included from :In file included from s2/s2polyline.cc450/usr/local/clang/include/absl/log/check.h:::182537:
::
In file included from  In file included from ../src/s2/s2polyline.hnote: /usr/local/clang/include/absl/log/internal/check_impl.h:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':33
21:
:
  In file included from In file included from 450../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.h | : :28 41:
 :
In file included from  In file included from ../src/s2/s2point.h /usr/local/clang/include/absl/log/internal/strip.h: :27x26:
,:
In file included from  /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2coder.hx::,40023 ::
c17In file included from o:/usr/local/clang/include/absl/status/status.hn :swarning: 67ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 
In file included from c/usr/local/clang/include/absl/status/internal/status_internal.hh:a  29r400:
* |  /usr/local/clang/include/absl/strings/cord.ha : b1258s :l 36c_:no onwarning: nstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nt
 uvl lo1258)i | 
id      n*| l                        ^ i
nae/usr/local/clang/include/absl/base/nullability.h b:cs241ol:r_22dn:_u ilnote: nexpanded from macro 'absl_nonnull'lt
ea  rb241nl | ea #cld:oe:fnCiosntr&e d Rva)ebp;sF
ll_      anto| *n                 ^nau
blsll/usr/local/clang/include/absl/base/nullability.h __:nNo257on:nnn23uu:llll 

note:       expanded from macro 'absl_nullable'      | 
|                                    ^                     ^
  
257/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | In file included from _#s2/s2predicates.ccnd:eu18fl:
ilIn file included from na../src/s2/s2predicates.heb: l57ae:
b In file included from s_../src/s2/s1chord_angle.hlN:_u29ln:
olIn file included from na../src/s2/s1angle.hbnl:eu28
l:
      lIn file included from  | ../src/s2/s2point.h_                      ^:N
25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:

In file included from       ../src/s2/base/casts.h| :                     ^36
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheIn file included from cs2/s2polyline.cck:O18p:
SIn file included from t../src/s2/s2polyline.hr:i33n:
gIn file included from (../src/s2/s1angle.h   :\28
:
      In file included from | ../src/s2/s2point.h                              ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241 | /usr/local/clang/include/absl/strings/cord.h#:d1268e:f51i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_ n1268o | ninnulliln e_ Nvoonindu lClo
r      d| :                     ^:
InlinIn file included from es2/s2predicates.ccR:e18p:
:In file included from :../src/s2/s2predicates.hE:m57p:
lIn file included from a../src/s2/s1chord_angle.hc:e29T:
rIn file included from e../src/s2/s1angle.he:(28C:
oIn file included from r../src/s2/s2point.hd:R25e:
pIn file included from *../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from r/usr/local/clang/include/absl/log/check.he:p37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                                  ^21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.hs2/s2projections.cc:::46524118:::
6622In file included from ::../src/s2/s2projections.h  :note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27

:
  In file included from 241../src/s2/r2.h |   #:465d22 | eA:
fBiIn file included from SnL../src/s2/util/math/vector.he_ :LaObGs_36lI:
_NIn file included from nT../src/s2/base/logging.hoEn:Rn21Nu:
AlLIn file included from l_ /usr/local/clang/include/absl/log/check.hD_EN:FoI37nNn:
Eu_In file included from lMlA/usr/local/clang/include/absl/log/internal/check_impl.h
K:      E21| _                     ^:
C
HIn file included from E/usr/local/clang/include/absl/log/internal/check_op.hC:K41_:
OIn file included from P/usr/local/clang/include/absl/log/internal/strip.h_:S26T:
R/usr/local/clang/include/absl/log/internal/log_message.hI:N425G:_31E:X Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
N(co  n425s | t   vLooigdM*e sasbasgle_Fnaotnanlu(lclo)nIn file included from ;ss2/s2polyline_simplifier.cc
In file included from t:      s2/s2polyline.cc 18c| ::
h                                                                 ^a18In file included from 
r:
/usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline_simplifier.h*In file included from :: ../src/s2/s2polyline.h24163a:::
b3322In file included from s:
:../src/s2/s1chord_angle.hlIn file included from  :note: _../src/s2/s1angle.hn29expanded from macro 'absl_nonnull':o:
n
28In file included from n:
  ../src/s2/s1angle.huIn file included from 241:l../src/s2/s2point.h | 28l: #:
d27efIn file included from i:
lfe../src/s2/s2point.h,In file included from i: ../src/s2/s2coder.hin27:ne:
23t  In file included from :
al../src/s2/s2coder.hIn file included from bi:n/usr/local/clang/include/absl/status/status.hs23le::
_)67In file included from n :
/usr/local/clang/include/absl/status/status.hoAIn file included from :nB/usr/local/clang/include/absl/status/internal/status_internal.h67nS::
u29l/usr/local/clang/include/absl/status/internal/status_internal.h:
l:/usr/local/clang/include/absl/strings/cord.h 149_::N127513o::n51 n:warning: u type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

        | 149                     ^ | 
 c1275o | nisntl In file included from ics2/s2predicates.ccnh:ea18 r:
v*In file included from o ../src/s2/s2predicates.hia:db57 s:
ClIn file included from o_../src/s2/s1chord_angle.hrn:do29:n:
:nIn file included from Iu../src/s2/s1angle.hnl:ll28i :
nMIn file included from ea../src/s2/s2point.hRk:ee25pC:
:hIn file included from :e../src/s2/util/coding/coder.hEc:mk36pF:
laIn file included from ai../src/s2/base/casts.hcl:eS36Tt:
rrIn file included from ei../src/s2/base/logging.hen:(g21C(:

o      r| d            ^R
ep* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | r#edpe,f
i      n| e                                                  ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _In file included from Ns2/s2polyline_simplifier.cco:n18n:
uIn file included from l../src/s2/s2polyline_simplifier.hl:
63      :
| In file included from                      ^../src/s2/s1chord_angle.h
:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const chIn file included from as2/s2polyline.ccr:*18 :
aIn file included from b../src/s2/s2polyline.hs:l33_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :p27r:
eIn file included from f../src/s2/s2coder.hi:x23):
;In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                        ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241:/usr/local/clang/include/absl/strings/cord.h22::1282 :47note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de f1282i | nien laibnsel _vnooindn uClolr d_:N:oInnnluilnle
R      e| p                     ^:
:SetTree(CoIn file included from rs2/s2polyline_simplifier.ccd:R18e:
pIn file included from *../src/s2/s2polyline_simplifier.h :a63b:
sIn file included from l../src/s2/s1chord_angle.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from r../src/s2/s2point.he:p27,:

In file included from       ../src/s2/s2coder.h| :                                              ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:/usr/local/clang/include/absl/status/internal/status_internal.h22::150 :58note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f150i | n e   a bcsoln_snto nanbuslll: :_SNtoantnuusl*l 
a      b| s                     ^l
_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2polyline.cca:b18s:
lIn file included from _../src/s2/s2polyline.hn:o33n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullabIn file included from l/usr/local/clang/include/absl/log/check.he: 37r:
eIn file included from p/usr/local/clang/include/absl/log/internal/check_impl.h,:
21      :
|                                                      ^/usr/local/clang/include/absl/log/internal/check_op.h
:465:66: /usr/local/clang/include/absl/base/nullability.h:warning: 257:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
: note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fine   241a | b#sdle_fniunlel aabblsel __nNounlnlualbll e_
N      o| n                      ^n
ull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CIn file included from Hs2/s2polyline.ccE:C18K:
_In file included from O../src/s2/s2polyline.hP:_33S:
TIn file included from R../src/s2/s1angle.hI:N28G:
_In file included from E../src/s2/s2point.hX:T27E:
RIn file included from N../src/s2/s2coder.h(:c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67v:
oIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hd:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s1301l:_56n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll); 
1301       | | i^n
li/usr/local/clang/include/absl/log/internal/check_op.hn:e450 :v25o:i dnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'C
or  d450: | : I n l i n exR,e px:,: Ccoomnmsitt Tcrheaer(*c oanbsstl _CnoorndnRuelpl*) 
a      b| s                        ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull'o
ld  _241r | e#pd,e
f      i| n                                                       ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257_ | N#odnenfuilnle
       a| b                     ^s
l_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2predicates.cc1302: | 18 :
 In file included from  ../src/s2/s2predicates.h : 57 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37C:
oIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hd:R21e:
p/usr/local/clang/include/absl/log/internal/check_op.h*: 502a:b1s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l502l |  ArBeSpL,_
L      O| G                                                 ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Cexpanded from macro 'absl_nonnull'H
EC  K241_ | O#Pd_eIfMiPnLe( Cahbesclk__nEoQn,n u=l=l) 
_      N| o^n
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l488
:      32| :                     ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullaLbl_eA TnTaRmIeBIn file included from #Us2/s2polyline.ccT#:IE18m_:
CpIn file included from Ol../src/s2/s2polyline.hL(D: ;33
 :
       In file included from |  ../src/s2/s1angle.h                              ^ : 
28 :
 In file included from  /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h :: 24127 ::
 22In file included from  :../src/s2/s2coder.h  : note: 23 expanded from macro 'absl_nonnull':
 
In file included from  /usr/local/clang/include/absl/status/status.h\  :
24167       | :
#| In file included from                                ^d/usr/local/clang/include/absl/status/internal/status_internal.h
e:f29i/usr/local/clang/include/absl/base/nullability.h:
n:/usr/local/clang/include/absl/strings/cord.he257: :1312a23:b:s38 l:note: _ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'n

nu   l2571312l |  |  #i_dNnelofiinnee  anabnbsuslll:l_:
ncuolrlda_bilne      t e| _r                     ^Nnu
alll:a:bCloer
d      R| e                      ^p
* absl_nullableIn file included from  s2/s2predicates.ccC:o18r:
dIn file included from :../src/s2/s2predicates.h::I57n:
lIn file included from i../src/s2/s1chord_angle.hIn file included from n:es2/s2projections.cc29R::
e18In file included from p:
../src/s2/s1angle.h:In file included from ::../src/s2/s2projections.h28c::
l27In file included from e:
../src/s2/s2point.haIn file included from :r../src/s2/r2.h25(::
)22In file included from  :
../src/s2/util/coding/coder.h{In file included from :
../src/s2/util/math/vector.h36      ::
| 36In file included from                                      ^:
../src/s2/base/casts.h
In file included from :../src/s2/base/logging.h36/usr/local/clang/include/absl/base/nullability.h::
:21In file included from 257:
../src/s2/base/logging.h:In file included from :23/usr/local/clang/include/absl/log/check.h21:::
 37In file included from note: :
/usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nullable'In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h37:  :
21257In file included from :
 | /usr/local/clang/include/absl/log/internal/check_impl.h#In file included from :d/usr/local/clang/include/absl/log/internal/check_op.h21e::
f41/usr/local/clang/include/absl/log/internal/check_op.hi:
:nIn file included from 502e/usr/local/clang/include/absl/log/internal/strip.h: :1a26:b:
 /usr/local/clang/include/absl/log/internal/log_message.hwarning: s:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l426_
:n31/usr/local/clang/include/absl/log/internal/check_op.hu::l 489l:awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]47l
:e  note: _  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N426
u | l    l489aL | bo gl eM 
 e      s |  s                      ^ca
ognesFta tTa1l&( cvonst1 ,c hcaorn*s ta bTs2l&_ nvo2n,n ucloln sfti lceh,a ri*n ta blsiln_en,o
n      n| u                              ^l
l /usr/local/clang/include/absl/base/nullability.he:x241p:r22t:e xnote: texpanded from macro 'absl_nonnull')
 {   In file included from 241 s2/s2polyline.cc  | : #18d :
\eIn file included from f
../src/s2/s2polyline.hi      n:| e33                                              ^ :

aIn file included from b/usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.hs:l:241_28n::
o22In file included from n:../src/s2/s2point.hn unote: :lexpanded from macro 'absl_nonnull'l27 
:
_In file included from N  ../src/s2/s2coder.ho241:n | n23#u:
ldIn file included from le/usr/local/clang/include/absl/status/status.hf
:i      67n| :
                     ^eIn file included from  
/usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l/usr/local/clang/include/absl/strings/cord.h_:n1321o:n48In file included from n:us2/s2projections.cc l:warning: l18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] :

_In file included from N../src/s2/s2projections.ho: n271321n:
 | uiIn file included from ln../src/s2/r2.hll
:i      n22e|                       ^v:
o
iIn file included from d../src/s2/util/math/vector.h :C36o:
rIn file included from d../src/s2/base/logging.h:::21I:
nIn file included from l/usr/local/clang/include/absl/log/check.hi:n37e:
RIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hp::21::
CIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hp:y41T:
oIn file included from A/usr/local/clang/include/absl/log/internal/strip.hr:r26a:
y/usr/local/clang/include/absl/log/internal/log_message.h(:c427h:a31r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o427n | n u l l   d s t )   c oIn file included from  n s2/s2polyline_simplifier.ccs :t 18  :
{ In file included from  
../src/s2/s2polyline_simplifier.hc      :o| n63s                                               ^:
t
In file included from  ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/base/nullability.hc::In file included from h29241s2/s2predicates.cca:
::rIn file included from 2218*../src/s2/s1angle.h :a:
: bIn file included from 28note: s../src/s2/s2predicates.hl:
_expanded from macro 'absl_nonnull':In file included from n
o57  ../src/s2/s2point.hn:
241:nIn file included from u | l27../src/s2/s1chord_angle.h#l:
:d In file included from 29ef../src/s2/s2coder.h:
fa:In file included from ii23../src/s2/s1angle.hnl:
u:e/usr/local/clang/include/absl/status/status.h r28e:_am:
s725gb)In file included from  :As../src/s2/s2point.h38BlS::_25nL _warning: :
oAtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from nT
../src/s2/util/coding/coder.hnT:uR36  lI:
B725lIn file included from U |  ../src/s2/base/casts.h_T E:_NC 36oOs:
nLtDIn file included from ;n
a../src/s2/base/logging.hu      t:ilc| 21l 
                              ^:
s      
In file included from t| /usr/local/clang/include/absl/log/check.ha/usr/local/clang/include/absl/base/nullability.h                     ^:t:
37u241:
s:In file included from _22/usr/local/clang/include/absl/log/internal/check_impl.hi::n 21tnote: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.he
:r502  n:a2411l | ::# :dwarning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]et
afti/usr/local/clang/include/absl/log/internal/check_op.hun:se497R :ae32pb:*s lnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_a
nbosn  nl497_u | nl ol  n_inNnuollninnulle l P
cro      enp| sa                     ^tre
exTporM ocdoinfsyt( 
c      h| a                                     ^r
* a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241  | n#admeef#i#nIem palb(s    l _ n o n null _ N o n n u ll
      |                      ^
   In file included from  s2/s2projections.cc\:
18      :
| In file included from                                ^../src/s2/s2projections.h
:27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/r2.h::25722::
23In file included from :../src/s2/util/math/vector.h :note: 36expanded from macro 'absl_nullable':

In file included from ../src/s2/base/logging.h:  21257:
 | In file included from #/usr/local/clang/include/absl/log/check.hIn file included from d:s2/s2polyline_simplifier.cce37:f:
18iIn file included from :
n/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from e:../src/s2/s2polyline_simplifier.h 21:a:
63bIn file included from :
s/usr/local/clang/include/absl/log/internal/check_op.hIn file included from l:../src/s2/s1chord_angle.h_41:n:
29uIn file included from :
l/usr/local/clang/include/absl/log/internal/strip.hIn file included from l:../src/s2/s1angle.ha26:b:
28l/usr/local/clang/include/absl/log/internal/log_message.h:
e:In file included from  436../src/s2/s2point.h_::N3627u::
l In file included from l../src/s2/s2coder.hawarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b23l
:
e/usr/local/clang/include/absl/status/status.h
  :      436732|  | :                       ^29 
:L owarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
esIn file included from s  s2/s2predicates.cca732:g | 18 e:
D In file included from es../src/s2/s2predicates.htb:au57tg:
iFcIn file included from a ../src/s2/s1chord_angle.htc:aol29(n:
scIn file included from ot../src/s2/s1angle.hn :ss28tt:
d In file included from :c:../src/s2/s2point.hhs:ta25rr:
i*In file included from n ../src/s2/util/coding/coder.hag:*b36 s:
alIn file included from b_../src/s2/base/casts.hsn:lo36_n:
nnIn file included from ou../src/s2/base/logging.hnl:ln21u :
lfIn file included from li/usr/local/clang/include/absl/log/check.h l:Ee37,m:
p
In file included from t      /usr/local/clang/include/absl/log/internal/check_impl.hy| :S                                   ^t21r
:
i/usr/local/clang/include/absl/log/internal/check_op.hn/usr/local/clang/include/absl/base/nullability.h:g:502(241:):1;22:
:        warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note:                             ^expanded from macro 'absl_nonnull'


/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h  498:241:241 | 35#::d22 e:note: f expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'inote: n
eexpanded from macro 'absl_nonnull' 
a  b  498s241l |  | _ n# do en nfu il nli en _tNa bovnsn1lu,_l nlio
nnt      n u| vl                     ^2l,
  _cNoonnsntu lclh
a      r| *                     ^ 
absl_nonnull exprtext)In file included from  s2/s2polyline_simplifier.cc{: 18 :
 In file included from  ../src/s2/s2polyline_simplifier.h : 63 :
 In file included from  ../src/s2/s1chord_angle.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
\In file included from 
../src/s2/s2point.h      :| 27                                  ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241:/usr/local/clang/include/absl/status/status.h22::733 :29note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #d  e733f | i n es taabtsilc_ ncoonnnsutl ls t_dN:o:nsnturliln
g      *|                       ^a
bsl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_simplifier.cc:18:
In file included from ../src/s2/s2polyline_simplifier.h:63:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2predicates.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2predicates.h37::
57In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s1chord_angle.h21::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s1angle.h41::
28In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :../src/s2/s2point.h26::
25/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 456../src/s2/util/coding/coder.h::3836::
 In file included from warning: ../src/s2/base/casts.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/base/logging.h  :45621 | :
 In file included from  /usr/local/clang/include/absl/log/check.hL:o37g:
MIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hs:s21a:
g/usr/local/clang/include/absl/log/internal/check_op.he:Q503u:i1e:t lwarning: ytype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]F
ata  l503( | cAoBnSsLt_ LcOhGa_rI*N TaEbRsNlA_Ln_oCnHnEuClKl_ OfPi_lIeM,P Li(nCth elcikn_eN,E
,       | !                                     ^=
)
      /usr/local/clang/include/absl/base/nullability.h| :^241
:22: /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'488
:32  :241  | note: #expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'd
efi  n488e |   a bisnll_innoen ncuolnls t_eNxopnrn ucloln
s      t|                       ^c
har* absl_nIn file included from us2/s2projections.ccl:l18a:
bIn file included from l../src/s2/s2projections.he: 27n:
aIn file included from m../src/s2/r2.he:#22#:
IIn file included from m../src/s2/util/math/vector.hp:l36(:
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41\:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                               ^26
:
/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/base/nullability.h::457257::3823::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

    257457 |  | # d e f i n e   a b s l _ n u l l a b l e   _ N u lcloanbslte 
c      h| a                      ^r
* absl_nonnullIn file included from  s2/s2predicates.ccf:a18i:
lIn file included from uIn file included from ../src/s2/s2predicates.hrs2/s2polyline.cc:e:57_18:
m:
In file included from sIn file included from ../src/s2/s1chord_angle.hg../src/s2/s2polyline.h:):29
33:
      :
In file included from | In file included from ../src/s2/s1angle.h                                     ^../src/s2/s1angle.h:
:2828:
/usr/local/clang/include/absl/base/nullability.h:
In file included from :In file included from ../src/s2/s2point.h241../src/s2/s2point.h:::252227:
::
In file included from  In file included from ../src/s2/util/coding/coder.h../src/s2/s2coder.hnote: ::expanded from macro 'absl_nonnull'3623
:
:
In file included from   In file included from ../src/s2/base/casts.h241/usr/local/clang/include/absl/status/status.h: | :36#67:
d:
In file included from eIn file included from f../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.hi::n2129e:
 :
In file included from a/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.hb::s37l1505:
_:nIn file included from 41o/usr/local/clang/include/absl/log/internal/check_impl.h:n: n21warning: u:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.hl
:l503 :_ 1N1505o: | n inwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ul
il/usr/local/clang/include/absl/log/internal/check_op.hnl:e
489       :v| 47o                     ^:i
 dnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'C
ord  :489: | C o p y T o AcrornasytI mTp1l&( cvh1a,r *c oanbsstl _Tn2o&n nvu2l,l  cdosnts)t  ccohnasrt*  {a
b      s| l                                        ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :e xnote: pexpanded from macro 'absl_nonnull'r
te  x241t | )# d{e f i n e  \a
b      s| l                                              ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordIn file included from Rs2/s2predicates.cce:p18*:
 In file included from a../src/s2/s2predicates.hb:s57l:
_In file included from n../src/s2/s1chord_angle.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28t:
rIn file included from e../src/s2/s2point.he:)25 :
{In file included from 
../src/s2/util/coding/coder.h      :| 36                            ^:

In file included from ../src/s2/base/casts.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/logging.h::2221::
 In file included from /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nonnull'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :24121 | :
#/usr/local/clang/include/absl/log/internal/check_op.hd:e503f:i1n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n497o:n32n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
_Non  n497u | l l 
i      n| l                     ^i
ne constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, inIn file included from ts2/s2projections.cc :v182:
,In file included from  ../src/s2/s2projections.hc:o27n:
sIn file included from t../src/s2/r2.h :c22h:
aIn file included from r* absl_nonnull exprtext) {          In file included from  s2/s2polyline.cc : 18 :
 In file included from  ../src/s2/s2polyline.h :\33
:
      In file included from | ../src/s2/s1angle.h                                  ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n1525e: 29a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn u1525l | l   _ N ocnonrudl_li
n      t| e                     ^r
nal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
In file included from       s2/s2predicates.cc| :                        ^18
:
In file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/base/nullability.h::57241:
:In file included from 22../src/s2/s1chord_angle.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s1angle.h
:28:
  In file included from 241../src/s2/s2point.h | :#25d:
eIn file included from f../src/s2/util/coding/coder.hi:n36e:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:
504      :| 1                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABIn file included from Ss2/s2projections.ccL:_18L:
OIn file included from G../src/s2/s2projections.h_:I27N:
TIn file included from E../src/s2/r2.hR:N22A:
LIn file included from _../src/s2/util/math/vector.hC:H36E:
CIn file included from K../src/s2/base/logging.h_:O21P:
_In file included from I/usr/local/clang/include/absl/log/check.hM:P37L:
(In file included from C/usr/local/clang/include/absl/log/internal/check_impl.hh:e21c:
k/usr/local/clang/include/absl/log/internal/check_op.h_:L181E:,58 :< =warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      | ^
  181 | /usr/local/clang/include/absl/log/internal/check_op.h : 488 : 32c:o nnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't
 ab  s488l | : : Sitnaltiunse*  caobnsslt_enxopnrn ucloln sstt acthuasr,*  caobnsslt_ ncuhlalra*b laeb snla_mneo#n#nIumlpll (p r e f i x) ; 
        |                                                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                                ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:In file included from 57s2/s2projections.cc:
:In file included from 18../src/s2/s1chord_angle.h:
:In file included from 29../src/s2/s2projections.h:
:In file included from 27../src/s2/s1angle.h:
:In file included from 28../src/s2/r2.h:
:In file included from 22../src/s2/s2point.h:
:In file included from 25../src/s2/util/math/vector.h:
:In file included from 36../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/base/logging.h:
:In file included from 21../src/s2/base/casts.h:
:In file included from 36/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/check.h:
:/usr/local/clang/include/absl/log/internal/check_op.h37::
189In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h28::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
504:1:   warning: 189type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
in/usr/local/clang/include/absl/log/internal/check_op.hl:i489n:47e:  cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
st   a489b | s l ::Sta t u s *c oanbsstl _Tn1o&n nvu1l,l  cAosnSstta tTu2s&( cvo2n,s tc oanbsstl :c:hSatra*t uasb&s ls_)n o{n
n      u| l                           ^l
 e/usr/local/clang/include/absl/base/nullability.hx:p241r:t22e:x tnote: )expanded from macro 'absl_nonnull' 
{    241  |  # d\e
f      i| n                                              ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2polyline.ccs2/s2projections.cc::1818:
:
In file included from In file included from ../src/s2/s2polyline.h../src/s2/s2projections.h::3327:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/r2.h::2822:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/util/math/vector.h::2736:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/base/logging.h::2321:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.h::6737:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.h::2921:
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h::1666193::4821::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1666193 | In file included from  | icns2/s2predicates.ccol:ni18sn:
teIn file included from   ../src/s2/s2predicates.haC:bo57sr:
ldIn file included from : :../src/s2/s1chord_angle.hCS:ot29ar:
tduIn file included from :s../src/s2/s1angle.h:*:A 28da:
vbIn file included from as../src/s2/s2point.hnl:c_e25An:
noIn file included from dn../src/s2/util/coding/coder.hRn:eu36al:
ldIn file included from  (../src/s2/base/casts.hAC:sh36aS:
trIn file included from aIt../src/s2/base/logging.htu:se21(r:
caIn file included from ot/usr/local/clang/include/absl/log/check.hno:sr37t*:
  aIn file included from bas/usr/local/clang/include/absl/log/internal/check_impl.hlb::s:21lS:
_tn/usr/local/clang/include/absl/log/internal/check_op.hao:tn504un:us1lO:lr  <warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Tt>
&, 
/usr/local/clang/include/absl/log/internal/check_op.hs      ):|  497                                               ^{:

32      :/usr/local/clang/include/absl/base/nullability.h|                      ^note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'241
:/usr/local/clang/include/absl/base/nullability.h22::  241 497:note:  | expanded from macro 'absl_nonnull'22 
 :i  n 241lnote:  | expanded from macro 'absl_nonnull'i#n
dee   fci241onn | eIn file included from s# s2/s2polygon.cctda:eeb18sxlf:
p_riIn file included from n on../src/s2/s2polygon.hec na:onnb34susltl:
 l _In file included from _cNn../src/s2/mutable_s2shape_index.hhoao:nrnn41*u n:
laluIn file included from b
sl../src/s2/s2cell_id.h      ll: | _43n_                     ^:
uN
In file included from lo../src/s2/s1angle.hnl:nau28bl:
llIn file included from 
e../src/s2/s2point.h       :n| 27                     ^a:
m
In file included from e../src/s2/s2coder.h#:#23I:
mIn file included from p/usr/local/clang/include/absl/status/status.hl:(67 :
  /usr/local/clang/include/absl/status/internal/status_internal.h : 119 : 14 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       119  |   \ 
S      t| a                               ^t
us/usr/local/clang/include/absl/base/nullability.hR:e257pIn file included from :*s2/s2polyline.cc23 :a:bIn file included from 18 ss2/s2projections.cc:
note: l:In file included from expanded from macro 'absl_nullable'_18../src/s2/s2polyline.h
n:
  :oIn file included from n25733../src/s2/s2projections.hn | u#ld:
:leIn file included from f27 ../src/s2/s1angle.hCil:
:noeIn file included from 28n e../src/s2/r2.h:
a(:In file included from b
s22l../src/s2/s2point.h      :
_:n| u             ^In file included from 27l
l../src/s2/util/math/vector.h:
a:In file included from b36../src/s2/s2coder.hl:
:/usr/local/clang/include/absl/base/nullability.heIn file included from 23: ../src/s2/base/logging.h:
241_:In file included from :N21/usr/local/clang/include/absl/status/status.h22u:
::lIn file included from 67 l/usr/local/clang/include/absl/log/check.h:
note: aexpanded from macro 'absl_nonnull':In file included from b
37/usr/local/clang/include/absl/status/internal/status_internal.hl:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  241In file included from  | s2/s2projections.cc:18#:
dIn file included from e../src/s2/s2projections.hf:i27n:
eIn file included from  ../src/s2/r2.ha:b22s:
lIn file included from _../src/s2/util/math/vector.hn:o36n:
nIn file included from u../src/s2/base/logging.hl:l21 :
_In file included from N/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const: ch29a:
r*/usr/local/clang/include/absl/strings/cord.h :a1672b:s41l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null N e1672w | Sitnrliinnge( )v;oIn file included from 
is2/s2polygon.cc      d:|  18              ^C:

oIn file included from r../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.hd:::34241::
:AIn file included from 22d../src/s2/mutable_s2shape_index.h:v: a41note: n:
expanded from macro 'absl_nonnull'cIn file included from 
e../src/s2/s2cell_id.h(  :C24143h | :
a#In file included from rd../src/s2/s1angle.hIe:tf28ei:
rnIn file included from ae../src/s2/s2point.ht :oa27rb:
*sIn file included from  l../src/s2/s2coder.ha_:bn23so:
lnIn file included from _n/usr/local/clang/include/absl/status/status.hnu:ol67nl:
n /usr/local/clang/include/absl/status/internal/status_internal.hu_:lN125lo: n14in:tu ,lwarning:  ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s

i      z| e                       ^_125
t |   n _Sbtyatteuss)R e{p
*       | a                                        ^b
sl_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: Cexpanded from macro 'absl_nonnull'l
on  e241A | n#ddUenfrienfe( 
a      b| s             ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  In file included from _s2/s2polyline_simplifier.ccnote: N:expanded from macro 'absl_nonnull'o18
nn:
  uIn file included from 241l../src/s2/s2polyline_simplifier.h | l:#
63d      :
e| In file included from f                     ^../src/s2/s1chord_angle.hi
:n29e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.h:27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 /usr/local/clang/include/absl/status/status.h_:N1031o:n42n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
 1031 | inline const status_internalIn file included from :s2/s2polygon.cc::S18t:
In file included from aIn file included from s2/s2projections.cct../src/s2/s2polygon.h:u:18s34:
R:
In file included from eIn file included from ../src/s2/s2projections.hp../src/s2/mutable_s2shape_index.h:*:27 41:
a:
In file included from bIn file included from s../src/s2/r2.h../src/s2/s2cell_id.hl::_2243n:
:
oIn file included from In file included from n../src/s2/util/math/vector.h../src/s2/s1angle.hn::u3628l:
:
lIn file included from In file included from  ../src/s2/base/logging.h../src/s2/s2point.hS::t2127a:
:
tIn file included from In file included from u/usr/local/clang/include/absl/log/check.h../src/s2/s2coder.hs:::3723::
:
RIn file included from In file included from e/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/status.hp::T2167o:
:
P/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.ho::i226128n::t5914e::r  (warning: warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      

|                                          ^
    128226 | /usr/local/clang/include/absl/base/nullability.h |  :v 241oS:it22da: t Munote: asexpanded from macro 'absl_nonnull'kR
eeCp  h*241e  | ca#kbdOseplfV_iannloeun enaSubtlsrlli _nCnglo(onsnnteudAl:nl:d oU_snNtrorenefna(um)l& l c
oo      sn| ,s                     ^ t
c;o
n      s| t             ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef ipn)e; 
a      b| s                                                          ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: _expanded from macro 'absl_nullable'N
on  n257u | l#ld
In file included from e      s2/s2polyline_simplifier.ccf| :i                     ^18n
:
eIn file included from  ../src/s2/s2polyline_simplifier.ha:b63s:
lIn file included from _../src/s2/s1chord_angle.hn:u29l:
lIn file included from a../src/s2/s1angle.hb:l28e:
 In file included from _../src/s2/s2point.hN:u27l:
lIn file included from a../src/s2/s2coder.hb:l23e:

/usr/local/clang/include/absl/status/status.h      :| 1038                      ^:
33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2polyline_simplifier.ccb:s18l:
_In file included from n../src/s2/s2polyline_simplifier.hu:l63l:
aIn file included from b../src/s2/s1chord_angle.hl:e29 :
_In file included from N../src/s2/s1angle.hu:l28l:
aIn file included from b../src/s2/s2point.hl:e27
:
      In file included from | ../src/s2/s2coder.h                      ^:
23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2projections.cc: 181063:
 | In file included from c../src/s2/s2projections.ho:n27s:
tIn file included from  ../src/s2/r2.hc:h22a:
rIn file included from *../src/s2/util/math/vector.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from S/usr/local/clang/include/absl/log/internal/check_impl.ht:a21t:
u/usr/local/clang/include/absl/log/internal/check_op.hs:M277e:s50s:a gwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
sCS  t277r | ( 
        |              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n ncuolnls t_ Nvoonindu*l la
b      s| l                     ^_
nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defeine a
b      s| l                      ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57In file included from :
s2/s2projections.ccIn file included from :../src/s2/s1chord_angle.h18::
29In file included from :
../src/s2/s2projections.hIn file included from :../src/s2/s1angle.h27::
28In file included from :
../src/s2/r2.hIn file included from :../src/s2/s2point.h22::
25In file included from :
../src/s2/util/math/vector.hIn file included from :../src/s2/util/coding/coder.h36::
36In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/base/casts.h21::
36In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h293::2149:
: /usr/local/clang/include/absl/log/internal/check_op.h:warning: 504type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]293
 |   /usr/local/clang/include/absl/log/internal/check_op.h : 498 : 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
        498  |              i n t   v 1 ,   i n t  cvo2n,s tc ocnhsatr *c haabrs*l _anbosnln_unloln)n;u
l      l|                                                  ^e
xp/usr/local/clang/include/absl/base/nullability.hr:t241e:x22t:)  note: {expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l\_
n      o| n                                  ^n
ull/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        241|  |                      ^#
define absl_nonnull _Nonnull
      In file included from | s2/s2projections.cc                     ^:
18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2polygon.cc37::
18In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2polygon.h21::
34/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 451../src/s2/mutable_s2shape_index.h::141::
 In file included from ../src/s2/s2cell_id.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]43
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s1angle.h::45028::
25In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
../src/s2/s2coder.h:23  :
450In file included from  | /usr/local/clang/include/absl/status/status.h : 67 :
  /usr/local/clang/include/absl/status/internal/status_internal.h :x149,: 13x:,  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst   c149h | acro*n satb sclh_anro*n naublsll)_
n      o| n                        ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241M:a22k:e Cnote: hexpanded from macro 'absl_nonnull'e
ck  F241a | i#ldSetfriinneg (a
b      s| l            ^_
nonn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from In file included from In file included from s2/s2predicates.cc../src/s2/s2projections.hs2/s2polygon.cc:::182718:
:
:
In file included from In file included from In file included from ../src/s2/s2predicates.h../src/s2/r2.h../src/s2/s2polygon.h:::572234:
:
:
In file included from In file included from In file included from ../src/s2/s1chord_angle.h../src/s2/util/math/vector.h../src/s2/mutable_s2shape_index.h:::293641:
:
:
In file included from In file included from In file included from ../src/s2/s1angle.h../src/s2/base/logging.h../src/s2/s2cell_id.h:::282143:
:
:
In file included from In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/check.h../src/s2/s1angle.h:::253728:
:
:
In file included from In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h:::362127:
:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/base/casts.h../src/s2/s2coder.h:::4523623::
:
1In file included from In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/status/status.h: :2167warning: :
:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from /usr/local/clang/include/absl/status/internal/status_internal.h
/usr/local/clang/include/absl/log/check.h::15037::
  25In file included from 452:/usr/local/clang/include/absl/log/internal/check_impl.h |  :A21warning: B:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
/usr/local/clang/include/absl/log/internal/check_op.hL:_505L:  O1150G: | _ I Nwarning: T type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]E R
 NcAoL  n_505sD | EtAF BIaSNbLEs__lLM:OA:GKS_EtI_aNCtTHuEEsRC*NK A_aLOb_PsC_lHS_ETnCRoKIn_NnOGuP_l_ElIX MTsPEtLRa(NtC(uhisen,ct k6c_4oL_nTts,)t ; <
c)      h
| a      ^r| 
*^ 
/usr/local/clang/include/absl/log/internal/check_op.ha:b449/usr/local/clang/include/absl/log/internal/check_op.hs::l31488_::n o32note: n:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n 
unote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l  
 449p | r   e 488fe | ix xt )ei;nr
ln       it| ne                        ^me
p lc/usr/local/clang/include/absl/base/nullability.hao:tn241es: t22ce:oxn psnote: rtexpanded from macro 'absl_nonnull'  c
cohn  as241rt | * # cdahebafsril*n_ ena obansbnlsu_lln_lun loMlaankbneluCelh len ca_kmNOeopn#Sn#tuIrlmilpn
lg      ((|                        ^  
   \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : In file included from 22 s2/s2polygon.cc: :  18note:  :
expanded from macro 'absl_nonnull'\In file included from 

../src/s2/s2polygon.h      :  | 34241                               ^:
 | 
#In file included from d../src/s2/mutable_s2shape_index.he:/usr/local/clang/include/absl/base/nullability.hf41:i:
257nIn file included from e:../src/s2/s2cell_id.h 23:a:43b s:
note: lIn file included from expanded from macro 'absl_nullable'_../src/s2/s1angle.h
n:o28  n:
257nIn file included from  | u../src/s2/s2point.h#l:dl27e :
f_In file included from iN../src/s2/s2coder.hno:en23 n:
auIn file included from bl/usr/local/clang/include/absl/status/status.hsl:l
67_      :
n| /usr/local/clang/include/absl/status/internal/status_internal.hu                     ^:l
150l:a58b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
NuIn file included from l  ls2/s2projections.cc150a: | b18 l:
 eIn file included from  
../src/s2/s2projections.h       :c| 27o                      ^:
n
In file included from s../src/s2/r2.ht: 22a:
bIn file included from s../src/s2/util/math/vector.hl::36::
SIn file included from t../src/s2/base/logging.ha:t21In file included from u:
s2/s2predicates.ccsIn file included from :*/usr/local/clang/include/absl/log/check.h18 ::
a37bIn file included from s:
../src/s2/s2predicates.hlIn file included from :_/usr/local/clang/include/absl/log/internal/check_impl.h57n:o:
n21In file included from n:
../src/s2/s1chord_angle.hu/usr/local/clang/include/absl/log/internal/check_op.h:l:29l452:
 :In file included from s1t../src/s2/s1angle.h:a:t 28u:
warning: sIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],../src/s2/s2point.h
 :c/usr/local/clang/include/absl/log/internal/check_op.h25o::
n450In file included from s:../src/s2/util/coding/coder.ht25: :36c :
hIn file included from anote: ../src/s2/base/casts.hrexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':*
36 :
aIn file included from   b../src/s2/base/logging.h450s: | l21 _:
 nIn file included from  o/usr/local/clang/include/absl/log/check.h n: n37 u:
xlIn file included from ,l/usr/local/clang/include/absl/log/internal/check_impl.h  :xp21,r:
 e/usr/local/clang/include/absl/log/internal/check_op.hcf:oi505nx:s)1t;: 
 c      warning: h| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a                                                         ^
r
*/usr/local/clang/include/absl/log/internal/check_op.h :/usr/local/clang/include/absl/base/nullability.ha489:b:241s47:l:22_ :n note: onote: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'nexpanded from macro 'absl_nonnull'
n
ul    l241489) |  | 
#       d | e                         ^f 
i n /usr/local/clang/include/absl/base/nullability.hec: o241an:bs22st:l  _Tnote: n1expanded from macro 'absl_nonnull'o&
n n  vu2411l | ,l#  dc_eoNfnoisnntne u Tla2lb&
s       lv| _2                     ^n,
o ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
onnull exprtext) {     \
      | In file included from                                               ^s2/s2projections.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2projections.h241::2722:
:In file included from  ../src/s2/r2.h:note: 22expanded from macro 'absl_nonnull':

In file included from ../src/s2/util/math/vector.h:  36241:
 | In file included from #../src/s2/base/logging.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n453u:l1l:  _Nonnulwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakIn file included from es2/s2predicates.ccC:h18e:
cIn file included from k../src/s2/s2predicates.hO:p57S:
tIn file included from r../src/s2/s1chord_angle.hi:n29g:
(In file included from  ../src/s2/s1angle.h : 28\:

In file included from       ../src/s2/s2point.h| :                              ^25
:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36241:
:In file included from 22../src/s2/base/casts.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b505s:l1_:n owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 497_:N32o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l
      |                      ^  
497 |   inline cIn file included from os2/s2projections.ccn:s18t:
eIn file included from x../src/s2/s2projections.hp:r27 :
cIn file included from o../src/s2/r2.hn:s22t:
 In file included from c../src/s2/util/math/vector.hh:a36r:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:
 /usr/local/clang/include/absl/log/internal/check_op.hn:a453m:e1#:# Iwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
l(/usr/local/clang/include/absl/log/internal/check_op.h : 450 : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |             \x
,       | x                               ^,
 co/usr/local/clang/include/absl/base/nullability.hn:s257t: 23c:h anote: rexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la)b
s      l| _                        ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  _note: Nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed
e      f| i                      ^n
e absl_nonIn file included from ns2/s2predicates.ccu:l18l:
 In file included from _../src/s2/s2predicates.hN:o57n:
nIn file included from u../src/s2/s1chord_angle.hl:l29
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1:In file included from  s2/s2projections.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2projections.h::49827::
35In file included from :../src/s2/r2.h :22note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/util/math/vector.h:36:
In file included from   ../src/s2/base/logging.h498: | 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ht: 21v:
1/usr/local/clang/include/absl/log/internal/check_op.h,: 454i:n1t:  vwarning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 co  n454s | tA BcShLa_rL*O Ga_bIsNlT_EnRoNnAnLu_lDlE FeIxNpEr_tMeAxKtE)_ C{H E C K _ O P _ S T R I N G _ E X T\E
R      N| (                                  ^f
lo/usr/local/clang/include/absl/base/nullability.ha:t241):;22
:       | note: ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/log/internal/check_op.h  :241449 | :#31d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e a  b449s | l _ neoxntneurlnl  t_eNmopnlnautlel 
c      o| n                     ^s
t char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const In file included from cs2/s2polyline_measures.cch:a18r:
*In file included from  ../src/s2/s2polyline_measures.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
MIn file included from a../src/s2/s2coder.hk:e23C:
hIn file included from e/usr/local/clang/include/absl/status/status.hc:k67O:
pIn file included from S/usr/local/clang/include/absl/status/internal/status_internal.ht:r29i:
nIn file included from g/usr/local/clang/include/absl/strings/cord.h(: 94 :
 In file included from \/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                              ^
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::489241::1422::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 | #d  e489f | i n e   a b svlo_indo n(n*ualbls l__Nnounlnlualbll
e       | i                     ^n
varianIn file included from ts2/s2projections.cc):(18v:
oIn file included from i../src/s2/s2projections.hd:*27 :
aIn file included from b../src/s2/r2.hs:l22_:
nIn file included from u../src/s2/util/math/vector.hl:l36a:
bIn file included from i../src/s2/base/logging.hl:i21t:
yIn file included from _/usr/local/clang/include/absl/log/check.hu:n37k:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hw:n21):
,/usr/local/clang/include/absl/log/internal/check_op.h
:      455| :             ^1
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257/usr/local/clang/include/absl/log/internal/check_op.h::23450:: 25:note:  expanded from macro 'absl_nullable'note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  257   | 450# | d e f i n e  xa,b sxl,_ ncuolnlsatb lceh a_rN*u lalbasbll_en
o      n| n                      ^u
ll)
      |                         ^
In file included from s2/s2polyline_measures.cc/usr/local/clang/include/absl/base/nullability.h::18241:
:In file included from 22../src/s2/s2polyline_measures.h:: 29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:  28241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.h_:N94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 489                     ^:
45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*aIn file included from bs2/s2projections.ccs:l18_:
nIn file included from u../src/s2/s2projections.hl:l27a:
bIn file included from l../src/s2/r2.he: 22i:
nIn file included from v../src/s2/util/math/vector.ha:In file included from r36is2/s2polygon.cc:
a:nIn file included from t18../src/s2/base/logging.h):
(:In file included from v21../src/s2/s2polygon.ho:
In file included from :iIn file included from s2/s2r2rect.cc34d/usr/local/clang/include/absl/log/check.h::
*:18In file included from  37:
../src/s2/mutable_s2shape_index.ha:
In file included from :bIn file included from ../src/s2/s2r2rect.h41s/usr/local/clang/include/absl/log/internal/check_impl.h::
l:24In file included from _21:
../src/s2/s2cell_id.hn:
In file included from :u/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/base/logging.h43l:::
l45621In file included from a::
../src/s2/s1angle.hb1In file included from :i:/usr/local/clang/include/absl/log/check.h28l ::
iwarning: 37In file included from ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
../src/s2/s2point.hy
In file included from :_/usr/local/clang/include/absl/log/internal/check_impl.hu27  :n:
45621kIn file included from  | :
An../src/s2/s2coder.hIn file included from Bo:/usr/local/clang/include/absl/log/internal/check_op.hSw23:Ln:
41/usr/local/clang/include/absl/status/status.h_):
:L,O
GIn file included from 725      _/usr/local/clang/include/absl/log/internal/strip.h:| I:38                                            ^N26:
T:
 EIn file included from /usr/local/clang/include/absl/base/nullability.hwarning: R/usr/local/clang/include/absl/log/internal/log_message.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N:289
A47L::
_34  In file included from D:725/usr/local/clang/include/absl/log/internal/structured_proto.hE  | :27note:  :
expanded from macro 'absl_nullability_unknown' In file included from 
FsI/usr/local/clang/include/absl/log/internal/proto.ht  N:a289E34t | _:
i#M/usr/local/clang/include/absl/types/span.hcdA: eK212sfE:ti_22anCe:tH EaC uwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]bK__
siOl  nPt_212_eSn | urTn l lRaauIblsNi:iGl:n_iSgEtt XyapT_tuonEuiskRnRnNteo(epwcr*nh   a=a_r bN)Tsu;*ll
 _l      an_| bou^snn
lns_p/usr/local/clang/include/absl/log/internal/check_op.hunle:ulc449l i:lPf31ariee:bpd inote: la
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'ir      te| 
yT                                 ^_  o
Mu449on | d ki nfeoyxw(In file included from tn
s2/s2polyline_measures.cce;      :r
| 18n                                           ^:
 | 
In file included from t                     ^../src/s2/s2polyline_measures.he/usr/local/clang/include/absl/base/nullability.hm
p::l29241/usr/local/clang/include/absl/base/nullability.ha:
::tIn file included from 22289e../src/s2/s1angle.h:: : 34note: cexpanded from macro 'absl_nonnull'28:o
n:
 st char* abs  In file included from note: l../src/s2/s2point.hexpanded from macro 'absl_nullability_unknown'_:
n27241o:
   | nIn file included from 289#n../src/s2/s2coder.h | due:#lf23dli:
ne In file included from efM/usr/local/clang/include/absl/status/status.h ia:ank67bee:
s CIn file included from lah/usr/local/clang/include/absl/status/internal/status_internal.h_be:nsc29olk:
n_OIn file included from nnp/usr/local/clang/include/absl/strings/cord.huuS:llt94llr:
 aiIn file included from _bn/usr/local/clang/include/absl/strings/internal/cordz_info.hNig:ol(31ni :
nt /usr/local/clang/include/absl/synchronization/mutex.huy :l_\490lu
:
n      13      k| :| n                              ^                      ^o
warning: 
wtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.hn
 :_241  N:490u22 | l l :_ u  nnote:  s expanded from macro 'absl_nonnull'pve
oci  idf*241i ea | db
s#      In file included from ld| s2/s2polygon.cc_e                                 ^:nf
18ui:
lnIn file included from le../src/s2/s2polygon.h a:baIn file included from 34ibs2/s2r2rect.cc:
ls:In file included from il18../src/s2/mutable_s2shape_index.ht_:
:ynIn file included from 41_o../src/s2/s2r2rect.h:
un:In file included from nn24../src/s2/s2cell_id.hku:
:nlIn file included from 43ol../src/s2/base/logging.h:
w :In file included from n_21../src/s2/s1angle.h N:
:aoIn file included from 28rn/usr/local/clang/include/absl/log/check.h:
gn:In file included from )u37../src/s2/s2point.h;l:
:
lIn file included from 27      
/usr/local/clang/include/absl/log/internal/check_impl.h:
|       :In file included from             ^| 21../src/s2/s2coder.h
                     ^:
:
/usr/local/clang/include/absl/base/nullability.hIn file included from 23:/usr/local/clang/include/absl/log/internal/check_op.h:
289:/usr/local/clang/include/absl/status/status.h:41In file included from :34:
s2/s2projections.cc732:In file included from :: /usr/local/clang/include/absl/log/internal/strip.h1829:note: :
:26expanded from macro 'absl_nullability_unknown'In file included from  :

../src/s2/s2projections.hwarning: In file included from :  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/log_message.h27289
::
 |   47In file included from #732:
../src/s2/r2.hd | In file included from :e /usr/local/clang/include/absl/log/internal/structured_proto.h22f ::
is27In file included from nt:
../src/s2/util/math/vector.heaIn file included from : t/usr/local/clang/include/absl/log/internal/proto.h36ai::
bc34In file included from s :
../src/s2/base/logging.hlc/usr/local/clang/include/absl/types/span.h:_o:21nn213s:
tu:lIn file included from  34l/usr/local/clang/include/absl/log/check.hs:a:t b37dwarning: i:
:type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]lIn file included from :
i/usr/local/clang/include/absl/log/internal/check_impl.hs  tt:213ry21 | i_:
 /usr/local/clang/include/absl/log/internal/check_op.hnug :n*u456k s:nai1obn:wsg nl warning:  _ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_no
Non/usr/local/clang/include/absl/log/internal/check_op.huns:lnt450lu_:_lp25ulo:n i sEnnote: pmtexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'epe
ctryi   Sf450=ti |  re cid on
 n g      s ( | t                                 ^)x;,
  
T      x*| ,                            ^  
acb/usr/local/clang/include/absl/base/nullability.hos:nl241s_:In file included from tn22s2/s2polyline_measures.cc u::cl 18hlnote: :
aaexpanded from macro 'absl_nonnull'In file included from rb
../src/s2/s2polyline_measures.h*i:l   29ai241:
bt | In file included from sy#../src/s2/s1angle.hl_d:_ue28nnf:
okiIn file included from nnn../src/s2/s2point.hnoe:uwln 27l;a:
)
bIn file included from 
      s../src/s2/s2coder.h      | l:|                                  ^_23                        ^
n:
/usr/local/clang/include/absl/base/nullability.h
oIn file included from :n/usr/local/clang/include/absl/base/nullability.hn/usr/local/clang/include/absl/status/status.h289:u::241l6734:l:
:22 In file included from  :note: _/usr/local/clang/include/absl/status/internal/status_internal.h expanded from macro 'absl_nullability_unknown'N:note: 
o29expanded from macro 'absl_nonnull'n  :

n289uIn file included from    | l/usr/local/clang/include/absl/strings/cord.h241#l: | d#e
94df      :
ei| In file included from fn                     ^/usr/local/clang/include/absl/strings/internal/cordz_info.hie
:n 31ea:
 b/usr/local/clang/include/absl/synchronization/mutex.has:lb499_s:nl35uIn file included from _:ls2/s2polygon.ccn l:owarning: a18ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b:
n
iIn file included from ul../src/s2/s2polygon.h  li:499lt34 |   y :
v__In file included from oNu../src/s2/mutable_s2shape_index.hion:dnk41 nn:
EuoIn file included from nlw../src/s2/s2cell_id.haln:b
 43l      _:
e| NIn file included from D                     ^u../src/s2/s1angle.he
l:blu28_gu:
LnIn file included from osg../src/s2/s2point.hp(e:cco27infs:
itIn file included from e In file included from ../src/s2/s2coder.hdc
hs2/s2projections.cc:      a:23| r18:
                                 ^*:
/usr/local/clang/include/absl/status/status.h
 In file included from a:../src/s2/s2projections.hb733:s:27l29:
_:In file included from n ../src/s2/r2.hu:warning: l22ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:

bIn file included from l../src/s2/util/math/vector.he  : 73336n | :
 a mIn file included from es)../src/s2/base/logging.ht;:
a21t      :
i| In file included from c                                  ^/usr/local/clang/include/absl/log/check.h 
:c37o/usr/local/clang/include/absl/base/nullability.h:
n:In file included from s257/usr/local/clang/include/absl/log/internal/check_impl.ht:: 2321s::
t /usr/local/clang/include/absl/log/internal/check_op.hdnote: :expanded from macro 'absl_nullable':457:
:s1t  :r257 i | warning: #ndtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ge
*f i  an457be | sA laB_SbnsLlo__nLnOunGul_lI lNMlToEavbRleeN dAFL_rN_oDumElSFltIarbNlieE
n_      gM| (                      ^A)
K;E
_      C| H                            ^E
CK/usr/local/clang/include/absl/base/nullability.h_:O241P:_22S:T Rnote: Iexpanded from macro 'absl_nonnull'N
G_  E241X | T#EdReNf(iunnes iagbnseld_ ncohnanru)l;l
       _| N^o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l449l:
31      :In file included from |                       ^s2/s2polyline_measures.ccnote: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
18:
In file included from   ../src/s2/s2polyline_measures.h449: | 29 :
 In file included from e../src/s2/s1angle.hx:t28e:
rIn file included from n../src/s2/s2point.h :t27e:
mIn file included from p../src/s2/s2coder.hl:a23t:
eIn file included from  /usr/local/clang/include/absl/status/status.hc:o67n:
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h :c29h:
aIn file included from r/usr/local/clang/include/absl/strings/cord.h*: 94aIn file included from :
bs2/s2polygon.ccIn file included from s:/usr/local/clang/include/absl/strings/internal/cordz_info.hl18_::
n31In file included from o:
../src/s2/s2polygon.hn/usr/local/clang/include/absl/synchronization/mutex.h:n:34u549:
l:In file included from l40../src/s2/mutable_s2shape_index.h ::M 41a:
kwarning: In file included from etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2cell_id.hC
:h43e:
  cIn file included from k549../src/s2/s1angle.hO | :p 28 Ss:
ttIn file included from art../src/s2/s2point.hii:nc27g :
(vIn file included from o i../src/s2/s2coder.h d:  I23\n:

c      /usr/local/clang/include/absl/status/status.hr| e:m                              ^e751
n:t/usr/local/clang/include/absl/base/nullability.hS61y:n:241c hwarning: :Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22e
:m (  note: M751expanded from macro 'absl_nonnull'u | t
e   x *241 sa | bts#adltei_fncio nneun uianlblt spmlut_,rn
o_n      tn | uPl                                       ^oli
 n_t/usr/local/clang/include/absl/base/nullability.hNeo:rnT241nou:R22e:p (note: sexpanded from macro 'absl_nonnull't
la  tl241u
 | s      #_| di                     ^en
ftienren aaIn file included from lbs2/s2projections.cc:s:l:_18nS:
otnIn file included from an../src/s2/s2projections.hut:lul27 s:
_RIn file included from eN../src/s2/r2.hpo:n*22 n:
uaIn file included from bl../src/s2/util/math/vector.hls:
l36_      :
n| In file included from o                     ^../src/s2/base/logging.hn
:21:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
rIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h;:
21      :
| In file included from /usr/local/clang/include/absl/log/internal/check_op.h                                                            ^s2/s2polyline_measures.cc:
:45718/usr/local/clang/include/absl/base/nullability.h::
:1In file included from 241:../src/s2/s2polyline_measures.h: :22warning: 29:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 
note: In file included from /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull'../src/s2/s1angle.h:
:450  28:241:
25 | In file included from :#../src/s2/s2point.h d:note: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'f27
i:
nIn file included from   e../src/s2/s2coder.h450 : | a 23b s l:
 _ In file included from n o/usr/local/clang/include/absl/status/status.hxn,:n 67ux:
l,In file included from l /usr/local/clang/include/absl/status/internal/status_internal.h c_:oNno29sn:
tnIn file included from  u/usr/local/clang/include/absl/strings/cord.hclh:la
94r      *:
|                       ^In file included from a
/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o550n:n64u:l lIn file included from warning: )s2/s2polygon.cc
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:      
18| :
                        ^In file included from 
../src/s2/s2polygon.h:/usr/local/clang/include/absl/base/nullability.h  34:550:
241 | In file included from : ../src/s2/mutable_s2shape_index.h 22 : : 41  note: :
expanded from macro 'absl_nonnull' In file included from In file included from 
 s2/s2predicates.cc../src/s2/s2cell_id.h   :: 241 1843 |  :
 :
 #In file included from In file included from  d ../src/s2/s2predicates.h../src/s2/s1angle.he : : f 57 28i:
In file included from  :
nIn file included from es2/s2polyline_alignment.cc In file included from  ../src/s2/s1chord_angle.h :../src/s2/s2point.h : a 17 :29b:
s 27:
In file included from l :
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rnn23a:
In file included from n:
u/usr/local/clang/include/absl/status/status.hlIn file included from :../src/s2/s2polyline.h:lP:../src/s2/s2point.h:le752:33 r:T25:
_44Nh:
rIn file included from e:onnIn file included from ../src/s2/s1angle.ha duS../src/s2/util/coding/coder.hy:nwarning: l:28ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l36
:
h
:
      In file included from *In file included from  | a../src/s2/s2point.hb  s../src/s2/base/casts.h                     ^:752l:_
n27o | 36 :
 n:
In file included from snIn file included from u../src/s2/s2coder.hlt../src/s2/base/logging.ha:tl:23i 21w:
c:
 )In file included from ;In file included from 
cIn file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.h      os2/s2projections.cc::| n                                                               ^:6737s
18:
:
t:
 /usr/local/clang/include/absl/base/nullability.hIn file included from In file included from In file included from s:/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2projections.ht241:::a:292127t22:
:
:
u:In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.hs /usr/local/clang/include/absl/strings/cord.h../src/s2/r2.h:_note: :expanded from macro 'absl_nonnull':506i86n
22::
t:
1  e/usr/local/clang/include/absl/strings/cord_analysis.hrIn file included from n:a241:../src/s2/util/math/vector.h l | 32#:dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]::36f
:47S:
ti:nIn file included from e  a t../src/s2/base/logging.h 506awarning: u: | btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ss21A
BlR:
S_enIn file included from    Lp_o/usr/local/clang/include/absl/log/check.hn32n*uL: |  slO37aibzlG:
sel __In file included from N_o_I/usr/local/clang/include/absl/log/internal/check_impl.hNtTnnn:u EGoentn21ulRlE
:
lNlA Ls      /usr/local/clang/include/absl/log/internal/check_op.hR_eCt| :                     ^pHiE458C
Tmo:KaP1_to:Oeid MPn_warning: etItype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Mme
rPo(rL
(  yIn file included from       C458hUess2/s2polyline_measures.cc|  | cAaB:                                           ^kg_SGLE_18
e,( c>oL:
/usr/local/clang/include/absl/base/nullability.h=n)OIn file included from :s
tG../src/s2/s2polyline_measures.h241       _C::| I^NoT2922
rEd:
:R/usr/local/clang/include/absl/log/internal/check_op.hNRIn file included from  :A../src/s2/s1angle.he488note: Lexpanded from macro 'absl_nonnull':p:*_
D2832 E  F:
:a241bIsNlE_In file included from   | _nMoAn../src/s2/s2point.hnote: #KdEn_uClHlE:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e friCnK27
eep_:
 )a  bOIn file included from ;488sP../src/s2/s2coder.h
 | l _ Si:      _TnRnIlNi23| oGn_n:
                                              ^nEuXeT In file included from 
lElc/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.hR No::_(Ncnos67241onts:
:nenxuptIn file included from 22lrl  /usr/local/clang/include/absl/status/internal/status_internal.h:
csotn:       ds29| note: :t:
                     ^expanded from macro 'absl_nonnull': scIn file included from 

thr/usr/local/clang/include/absl/strings/cord.h  air:241n*94 | g#& :
d)e;a
bIn file included from f      is/usr/local/clang/include/absl/strings/internal/cordz_info.h| nl:^e_31
 n:
a/usr/local/clang/include/absl/log/internal/check_op.hu/usr/local/clang/include/absl/synchronization/mutex.hb:slll_an:449bol551:ne:31n un40:lal: m  note: e_warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'#N#otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
Inmn
  pul449(l l   |     
551 e x      t |  |                       ^ e   
r  ns  t t aet mi pc  l ab ot\oelIn file included from 
  s2/s2polyline_alignment.cc      cD:| o                               ^e17n
sc:
rt/usr/local/clang/include/absl/base/nullability.hIn file included from e :../src/s2/s2polyline_alignment.hmc257h:ae:n24tr23:
S*:In file included from y  ../src/s2/s2polyline.hnote: nexpanded from macro 'absl_nullable'a:c
hbSs33l  _e:
m257(nIn file included from  | Mou../src/s2/s1angle.ht#en:ndx28uel*:
 fli nMeIn file included from  aab../src/s2/s2point.hsakbe:Cls_27hlen:
o_ncIn file included from nnku../src/s2/s2coder.huOll:pll23Sat :
brlmIn file included from ienu/usr/local/clang/include/absl/status/status.h, g_(N:u
 67l       :
l|                                         ^In file included from a\b
/usr/local/clang/include/absl/status/internal/status_internal.h
l/usr/local/clang/include/absl/base/nullability.h:      e:29| 
                              ^241:
      
:In file included from /usr/local/clang/include/absl/base/nullability.h| 22/usr/local/clang/include/absl/strings/cord.h:                      ^::241
 86:note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord_analysis.h22
::50   :note: 24149expanded from macro 'absl_nonnull' | :#
In file included from    ds2/s2predicates.cc241warning: e: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f18#
di:
neeIn file included from    f ../src/s2/s2predicates.h50ia:b | sn57es iazbes_ll__:
tn nIn file included from oGno../src/s2/s1chord_angle.hnen:unt29Mlou:
lrlIn file included from  el../src/s2/s1angle.h_PN :_rNoo28nen:
nncuIn file included from luil../src/s2/s2point.hlls
e:M
      25e      m| :
                     ^| oIn file included from r
                     ^../src/s2/util/coding/coder.hy
:U36s:
aIn file included from g../src/s2/base/casts.he:(36c:
oIn file included from nIn file included from ../src/s2/base/logging.hss2/s2polyline_measures.cc:t:21 18In file included from :
C:
s2/s2projections.ccIn file included from oIn file included from :/usr/local/clang/include/absl/log/check.hr../src/s2/s2polyline_measures.h18:d::
37R29In file included from :
e:
../src/s2/s2projections.hIn file included from pIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h*../src/s2/s1angle.h27: ::
21a28In file included from :
b/usr/local/clang/include/absl/log/internal/check_op.h:
../src/s2/r2.hs:lIn file included from :506_../src/s2/s2point.h22:n::
1o27In file included from :n:
../src/s2/util/math/vector.h nIn file included from :warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h36l
l::
 /usr/local/clang/include/absl/log/internal/check_op.hr23In file included from :e:
../src/s2/base/logging.h489pIn file included from ::)/usr/local/clang/include/absl/status/status.h2147;::
:
67In file included from        :
/usr/local/clang/include/absl/log/check.hnote: | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'                                                ^In file included from :

/usr/local/clang/include/absl/status/internal/status_internal.h37::
/usr/local/clang/include/absl/base/nullability.h  29In file included from :489:
/usr/local/clang/include/absl/log/internal/check_impl.h241 | In file included from :: /usr/local/clang/include/absl/strings/cord.h2122 ::
: 94 /usr/local/clang/include/absl/log/internal/check_op.h :
:note:  expanded from macro 'absl_nonnull'In file included from 458 
c/usr/local/clang/include/absl/strings/internal/cordz_info.h:o  n:1241s31: | t#:
  d/usr/local/clang/include/absl/synchronization/mutex.hwarning: Te1:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f&i552
 nv:/usr/local/clang/include/absl/log/internal/check_op.he1 64:,a:450 bc :soln_s25twarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: oTn2n&
 u note: lvexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l  2
,  552_  Ncoo | 450 n n | s n t u l    l   c 
   h      x a| r                     ^*,  axb, 
 s  c lonst char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2polyline.cc
:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatuIn file included from ss2/s2projections.ccR:e18p:
*In file included from  ../src/s2/s2projections.ha:b27s:
lIn file included from _../src/s2/r2.hn:o22n:
nIn file included from u../src/s2/util/math/vector.hl:l36 :
CIn file included from l../src/s2/base/logging.ho:n21e:
(In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37             ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::241459::221::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #459d | eAfBiSnLe_ LaObGs_lI_NnToEnRnNuAlLl_ D_ENFoInNnEu_lMlA
K      E| _                     ^C
HECK_OP_STRING_EXTERN(const absl::strinIn file included from gs2/s2polyline.cc_:v18i:
eIn file included from w../src/s2/s2polyline.h&:)33;:

In file included from       ../src/s2/s1angle.h| :^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h::27449:
:In file included from 31../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/status/status.h
:67:
  /usr/local/clang/include/absl/status/internal/status_internal.h449: | 125 : 14e:x twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
n t  e125m | p l aSttea tcuosnRsetp *c haabrs*l _anbosnln_unloln nCulloln eMAankdeUCnhreecfk(O
p      S| t             ^r
in/usr/local/clang/include/absl/base/nullability.hg:(241 : 22 :\ 
note:       expanded from macro 'absl_nonnull'| 
                              ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from In file included from s2/s2projections.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2projections.h../src/s2/s2point.h::2727:
:
In file included from In file included from ../src/s2/r2.h../src/s2/s2coder.h::2223:
:
In file included from In file included from ../src/s2/util/math/vector.h/usr/local/clang/include/absl/status/status.h::3667:
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::21128:
:In file included from 14/usr/local/clang/include/absl/log/check.h:: 37:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :128459 | : 1 :S twarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
us/usr/local/clang/include/absl/log/internal/check_op.hR:e450p:*25 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
_n  o450n | n u l l   C lxo,n exA,n dcUonnrsetf (c)h acro*n satb;s
l      _| n             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:)22
:       | note:                         ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* ab sl _ n o n n u l l ) 
       |                          ^ 
 /usr/local/clang/include/absl/base/nullability.h : 241:b22:a snote: eexpanded from macro 'absl_nonnull'_
i  n241 | t#edrenfailn:e: PaebrsTlh_rneoandnSuylnlc h_*N oanbnsull_ln
o      n| n                     ^u
ll w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2projections.cc:  18241:
 | In file included from #../src/s2/s2projections.hd:27e:
In file included from f../src/s2/r2.hi:22n:
In file included from e../src/s2/util/math/vector.h: 36a:
In file included from b../src/s2/base/logging.hs:21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.h:o461n:n1u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  461 | ABSL_LOG_INTERNAL_DEFINE__noIn file included from nns2/s2polyline_alignment.ccu:lIn file included from 17ls2/s2polyline_measures.cc:
 :In file included from e18../src/s2/s2polyline_alignment.hx:
:pIn file included from 24r../src/s2/s2polyline_measures.h:
t:In file included from e29../src/s2/s2polyline.hx:
:tIn file included from 33)../src/s2/s1angle.h:
: In file included from {28../src/s2/s1angle.h:
 :In file included from  28../src/s2/s2point.h :
: In file included from  27../src/s2/s2point.h\:
:In file included from 
27../src/s2/s2coder.h      In file included from :
:| In file included from                                               ^s2/s2r2rect.cc23../src/s2/s2coder.h
::
:18In file included from 23:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h:
In file included from ::In file included from ../src/s2/s2r2rect.h24167/usr/local/clang/include/absl/status/status.h:::
:2422In file included from 67:
:/usr/local/clang/include/absl/status/internal/status_internal.h:
In file included from  :note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h29/usr/local/clang/include/absl/status/internal/status_internal.h
::
:21In file included from   29:
/usr/local/clang/include/absl/strings/cord.h241:
In file included from : | In file included from #/usr/local/clang/include/absl/log/check.h94/usr/local/clang/include/absl/strings/cord.hd::
:e37In file included from 86f:
/usr/local/clang/include/absl/strings/internal/cordz_info.h:
iIn file included from :/usr/local/clang/include/absl/strings/cord_analysis.hn/usr/local/clang/include/absl/log/internal/check_impl.h31:e::
56 21:/usr/local/clang/include/absl/synchronization/mutex.ha:
56:bIn file included from :556s/usr/local/clang/include/absl/log/internal/check_op.h :warning: l:38type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_41:
n:
 oIn file included from warning:    n/usr/local/clang/include/absl/log/internal/strip.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]56n:
 | u26sli:
  lz e__Nto nIn file included from n556G/usr/local/clang/include/absl/log/internal/log_message.hu | e:l t47l E:

vsIn file included from       ot/usr/local/clang/include/absl/log/internal/structured_proto.h| ii:                     ^dm27
 a:
LtIn file included from oe/usr/local/clang/include/absl/log/internal/proto.hcd:kF34Sa:
liorwS/usr/local/clang/include/absl/types/span.hhL:ao733orpe(M:eS31my:no crhwarning: ytype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]WU
asiatgP  ea733(r | accmosno*sn satt besClx_onpornrdn RuSleplpa nw*<aTi >ta pbM,a skienlSt_p afnlIn file included from noas2/s2predicates.cc(ng:Tns18*u):
 l;In file included from al
../src/s2/s2predicates.hb       :sr| 57le                                     ^:
_p
In file included from n)../src/s2/s1chord_angle.hu/usr/local/clang/include/absl/base/nullability.h;:l:l
29241a      :
:b| In file included from                                                        ^22l../src/s2/s1angle.h
:e:/usr/local/clang/include/absl/base/nullability.h  28:note: p:
241expanded from macro 'absl_nonnull'tIn file included from :
r../src/s2/s2point.h22   A::241B25  | S#:
note: Lexpanded from macro 'absl_nonnull'dIn file included from _
e../src/s2/util/coding/coder.hA  f:T241i36T | n:
R#eIn file included from Id ../src/s2/base/casts.hBea:Ufb36Tis:
EnlIn file included from _e_../src/s2/base/logging.hL n:Iao21Fbn:
EsnIn file included from Tlu/usr/local/clang/include/absl/log/check.hI_l:Mnl37Eo :
_n_In file included from BnN/usr/local/clang/include/absl/log/internal/check_impl.hOuo:Uln21Nln:
D/usr/local/clang/include/absl/log/internal/check_op.h u,:_l
506Nl      :o
n| 1      n                              ^:| u
                      ^lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h

:      /usr/local/clang/include/absl/log/internal/check_op.h257| :                     ^:497
23::32 : note: note: expanded from macro 'absl_nullable'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

  257 | In file included from   #s2/s2polyline_measures.ccd497:e | 18f :
i In file included from ni../src/s2/s2polyline_measures.hen: l29ai:
bnIn file included from se../src/s2/s1angle.hl :_c28no:
unIn file included from ls../src/s2/s2point.hlt:ae27bx:
lpIn file included from er../src/s2/s2coder.h  :_c23No:
unIn file included from ls/usr/local/clang/include/absl/status/status.hlt:a char*67 bal:
ebIn file included from 
s/usr/local/clang/include/absl/status/internal/status_internal.h      l:| _29n                      ^u:

lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94l:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hn:a31m:
e/usr/local/clang/include/absl/synchronization/mutex.h#:#558I:m35p:l (warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      558  |      b o o l   L o c k S\l
o      w| W                               ^i
th/usr/local/clang/include/absl/base/nullability.hD:e257a:d23l:i In file included from nnote: s2/s2r2rect.cceexpanded from macro 'absl_nullable':(
18M:
u  In file included from H257../src/s2/s2r2rect.ho | :#w24 d:
aeIn file included from fb../src/s2/base/logging.his:ln21e_:
 nIn file included from oa/usr/local/clang/include/absl/log/check.hnb:sn37lu:
_lnIn file included from ul/usr/local/clang/include/absl/log/internal/check_impl.hl :hl21oa:
wbIn file included from ,l/usr/local/clang/include/absl/log/internal/check_op.h
e:       41| _:
                                  ^NIn file included from 
u/usr/local/clang/include/absl/log/internal/strip.hl:/usr/local/clang/include/absl/base/nullability.hl26:a:
241bIn file included from :l/usr/local/clang/include/absl/log/internal/log_message.he22:
:47       :
note: | In file included from expanded from macro 'absl_nonnull'                      ^/usr/local/clang/include/absl/log/internal/structured_proto.h

:  27241:
 | In file included from #/usr/local/clang/include/absl/log/internal/proto.hd:e34f:
iIn file included from /usr/local/clang/include/absl/types/span.hns2/s2predicates.cc:e:739 18:a:
21bIn file included from :s../src/s2/s2predicates.h l:warning: _57ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
o
In file included from n../src/s2/s1chord_angle.hn:  u29739l:
 | lSIn file included from  p_../src/s2/s1angle.haN:no<n28Tn>u:
 lMlIn file included from a
../src/s2/s2point.hk      e:| S                     ^25p
a:
nIn file included from (../src/s2/util/coding/coder.hT:*36 :
aIn file included from In file included from b../src/s2/base/casts.hs2/s2polyline_measures.ccs::l3618_:
:
nIn file included from In file included from u../src/s2/base/logging.h../src/s2/s2polyline_measures.hl::l2129a:
:
bIn file included from In file included from l/usr/local/clang/include/absl/log/check.h../src/s2/s1angle.he:: 3728b:
:
eIn file included from In file included from g/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.hi::n2127 :
:
/usr/local/clang/include/absl/log/internal/check_op.hAIn file included from B:../src/s2/s2coder.hS506:L:23_1:
A:In file included from T /usr/local/clang/include/absl/status/status.hwarning: T:Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67I
:
BIn file included from /usr/local/clang/include/absl/log/internal/check_op.hU/usr/local/clang/include/absl/status/internal/status_internal.hT::E49829_::
L35In file included from I:/usr/local/clang/include/absl/strings/cord.hF :Enote: 94expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'T:
I
In file included from M/usr/local/clang/include/absl/strings/internal/cordz_info.hE:  _31B498:
O | /usr/local/clang/include/absl/synchronization/mutex.hU :N 559 D :, 46
 :      i n| warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^
v
1  ,/usr/local/clang/include/absl/base/nullability.h 559i: | n257 t:  23 v: 2  , note:   expanded from macro 'absl_nullable' c
o n   s t257   | c h# adr e *f i  n ae b  as b ls _l _n on nu lnclouanlbls tl eeCx o_pnNdrutielxtti)o lna{b l e 
        |                        ^ 
          \
      | In file included from                                   ^s2/s2r2rect.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2r2rect.h241::2422:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b41s:
lIn file included from _/usr/local/clang/include/absl/log/internal/strip.hn:o26n:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hl:l47 :
_In file included from N/usr/local/clang/include/absl/log/internal/structured_proto.ho:n27n:
uIn file included from l/usr/local/clang/include/absl/log/internal/proto.hl:
34      :
| /usr/local/clang/include/absl/types/span.h                     ^:
740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31*:  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl  _449n | u l leaxbtleer nc otnedm,p
l      a| t                                             ^e
 const/usr/local/clang/include/absl/base/nullability.h :c257h:a23r:*  note: aexpanded from macro 'absl_nullable'b
sl_n  o257n | n#udlelf iMnaek eaCbhselc_knOuplSltarbilneg (_ N u l\l
a      b| l                              ^e

      /usr/local/clang/include/absl/base/nullability.h| :                      ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.hIn file included from :s2/s2polyline_measures.cc27::
18In file included from :
../src/s2/r2.hIn file included from :../src/s2/s2polyline_measures.h22::
29In file included from :
../src/s2/util/math/vector.hIn file included from :../src/s2/s1angle.h36::
28In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2point.h21::
27In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2coder.h37::
23In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/status.h21::
67/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 465/usr/local/clang/include/absl/status/internal/status_internal.h::6629::
 In file included from warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :46531 | :
A/usr/local/clang/include/absl/synchronization/mutex.hB:S562L:_23L:O Gwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTERN  A562L_ | DEFI N Ev_oMiAdK EL_oCcHkESClKo_wO(PM_uSHToRwI NaGb_sElXT_EnRoNn(ncuolnls th ovwo,i dc*o nIn file included from asbs2/s2r2rect.cctsIn file included from : l18s2/s2polygon.ccC_:
:onIn file included from 18no../src/s2/s2r2rect.h:
dn:In file included from in24../src/s2/s2polygon.htu:
:iloIn file included from 34ln../src/s2/base/logging.h:
)*:In file included from ; 
21../src/s2/mutable_s2shape_index.ha      b:
:| s                                                                 ^In file included from 41l
/usr/local/clang/include/absl/log/check.h:
_:In file included from n/usr/local/clang/include/absl/base/nullability.h37../src/s2/s2cell_id.hu::
:l241In file included from 43l:/usr/local/clang/include/absl/log/internal/check_impl.h:
a22:In file included from b:21../src/s2/s1angle.hl e:
:note:  expanded from macro 'absl_nonnull'In file included from 28c
o/usr/local/clang/include/absl/log/internal/check_op.h:
n:  In file included from d41241../src/s2/s2point.h,:
 | :
In file included from #27d      /usr/local/clang/include/absl/log/internal/strip.h:
e| :In file included from f                      ^26../src/s2/s2coder.hi
:
:nIn file included from 23e/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/base/nullability.h:
 :/usr/local/clang/include/absl/status/status.h:a47:241b:
1031:sIn file included from :22l/usr/local/clang/include/absl/log/internal/structured_proto.h42:_:: n27 note: warning: o:
expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nIn file included from 

n/usr/local/clang/include/absl/log/internal/proto.hu:  l34 241l:
1031 |   | /usr/local/clang/include/absl/types/span.hi#_:ndN794leo:ifn8ninn:eue  l warning: clo
atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n      b
s| ts                     ^ l  
s_t794an | to un sn_ uiIn file included from  lnls2/s2projections.ccTt :*e r_18anN:
baoIn file included from sln../src/s2/s2projections.hl:n:_:u27nSl:
utlIn file included from la
../src/s2/r2.hlt      :au| 22bs                     ^:
lR
In file included from ee../src/s2/util/math/vector.hp :*p36 t:
arIn file included from b ../src/s2/base/logging.hsA:lB21S_LIn file included from :
n_s2/s2polyline_measures.ccIn file included from :oA/usr/local/clang/include/absl/log/check.h18nT::
nT37In file included from uR:
../src/s2/s2polyline_measures.hlIIn file included from :lB/usr/local/clang/include/absl/log/internal/check_impl.h29 U::
ST21In file included from tE:
../src/s2/s1angle.ha_/usr/local/clang/include/absl/log/internal/check_op.h:tL:In file included from 28uI465:
sF:Es2/s2polyline_simplifier.ccIn file included from :66:T:../src/s2/s2point.h:RI18: eM:
27warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]EIn file included from :
T
o_../src/s2/s2polyline_simplifier.hIn file included from /usr/local/clang/include/absl/base/nullability.hPB:../src/s2/s2coder.h:oO63:241iU:
23:nNIn file included from :
22tD../src/s2/s1chord_angle.hIn file included from :/usr/local/clang/include/absl/status/status.he,:  :note: 67expanded from macro 'absl_nonnull'r31s:

(:

iIn file included from   In file included from       z/usr/local/clang/include/absl/status/internal/status_internal.h241../src/s2/s2pointutil.h| e                                         ^: | :_
29#27dte:
:
In file included from /usr/local/clang/include/absl/base/nullability.h fs../src/s2/util/math/matrix3x3.h/usr/local/clang/include/absl/strings/cord.h::ii:24194nz276e::
e:)22In file included from  5 :/usr/local/clang/include/absl/strings/internal/cordz_info.ha:n :note: b o31expanded from macro 'absl_nonnull'swarning: le:

type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_xn/usr/local/clang/include/absl/synchronization/mutex.h
  co:241en  n562 | p276tu:# | d l58 e{l: f 
  _i       warning: NnS| type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]oen2n       ^
 _au
Cb  lHsE562/usr/local/clang/include/absl/base/nullability.hll
C | :_      K 257n| _ :o                     ^NvE23n
no(:uid lIn file included from ldenote: s2/s2projections.cc  texpanded from macro 'absl_nullable':_L,
18No cV:
  okTIn file included from 257nSylp../src/s2/s2projections.he | no:(#uw270dl(:
)elMIn file included from u)f
i../src/s2/r2.hH       n:o<w| e22<                      ^ :
 a
aIn file included from "bb../src/s2/util/math/vector.hs s:llC_an36_nu:
n'lIn file included from otl../src/s2/base/logging.hn a:niub21nll:
vleIn file included from  e /usr/local/clang/include/absl/log/check.h_rh:Nso37uIn file included from ew:
ls2/s2polygon.cc.,In file included from l:a  /usr/local/clang/include/absl/log/internal/check_impl.hc18bDl:o:
ee21nIn file included from t
:
s../src/s2/s2polygon.hte      /usr/local/clang/include/absl/log/internal/check_op.h: r| :                      ^34Cmo465n
:
iIn file included from :dn../src/s2/mutable_s2shape_index.h1ia::tn41 iwarning: t:
otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] In file included from =
 n../src/s2/s2cell_id.h0:  *.43465 ":
 | a;In file included from 
Ab../src/s2/s1angle.hs      B:l| S    ^28_Ln
u:
_../src/s2/base/logging.hlIn file included from L:l../src/s2/s2point.hO37:aG:27b_21I:
l:eN TcIn file included from In file included from  Eo../src/s2/s2coder.hns2/s2r2rect.ccnote: R:N23d:expanded from macro 'S2_CHECK_NE'A:
,18
:
L/usr/local/clang/include/absl/status/status.h
In file included from    ../src/s2/s2r2rect.h_:      37:D1038|  |                                                          ^24E:#
:
F33dIn file included from /usr/local/clang/include/absl/base/nullability.hI:N:e../src/s2/base/logging.h257E: f:_23warning: i21M:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:
A 
eIn file included from Knote:  expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/check.h ES_
:10382C37   | _H:
257 CEHIn file included from  |  # CE/usr/local/clang/include/absl/log/internal/check_impl.hd eKfC:s_tiK21Oan_:
Pt_eN In file included from auSE/usr/local/clang/include/absl/log/internal/check_op.hbsT :s_RCI41liHNE:
_nGtCIn file included from n_uEeK/usr/local/clang/include/absl/log/internal/strip.hlXr_n:lTNaE26aEl
::
bR      :In file included from lN| (                    ^S/usr/local/clang/include/absl/log/internal/log_message.hec
t: oa/usr/local/clang/include/absl/log/check.h47_nNt:u:
su120sIn file included from tl:lR/usr/local/clang/include/absl/log/internal/structured_proto.h 3ae:v:obp27 il*:
note: dexpanded from macro 'CHECK_NE'e In file included from *

a/usr/local/clang/include/absl/log/internal/proto.h         b:a| 120s34b                      ^s | l:

l _/usr/local/clang/include/absl/types/span.h_ nno:Aon799Bnnn:SuLu32l_l:lLl )O; 
warning: Gr_      Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e| In file included from N
p^s2/s2polyline_measures.ccT)E
  : R{799/usr/local/clang/include/absl/log/internal/check_op.h18N
A | ::
      LS450In file included from | ../src/s2/s2polyline_measures.h_p:                                ^:C29a25
H:
n:E/usr/local/clang/include/absl/base/nullability.hIn file included from < C:K../src/s2/s1angle.hcnote: 241_:oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':N28n
22E:
s:t  _In file included from   450I../src/s2/s2point.hnote: T | > M :expanded from macro 'absl_nonnull' P 27
ML (  a ( 241xkv | a,le# 1xC,od)e fn,cis ont#nveSsat  placa1b,h nsalr((_*nvoT an*aln ba2bus)sll,ll_ In file included from _ nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
#vs2/s2predicates.ccal2:)18
:
      In file included from | ../src/s2/s2predicates.h  ^:
57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1angle.h::5128::
3In file included from :../src/s2/s2point.h :25note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'In file included from 
../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h   :5136 | :
 In file included from  ../src/s2/base/logging.hA:B21S:
LIn file included from _/usr/local/clang/include/absl/log/check.hL:O37G:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hN:T21E:
R/usr/local/clang/include/absl/log/internal/check_op.hN:A507L:_1C:H Ewarning: Ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]K
_OP(C  h507e | cAkB_SNLE_,L O!G=_,I NvTaEl1R,N AvLa_lC1H_EtCeKx_tO,P _vIaMlP2L,( Cvhaelc2k__tGeTx,t )>
)      
|         ^| 
^
/usr/local/clang/include/absl/log/internal/check_op.h:68/usr/local/clang/include/absl/log/internal/check_op.h::22488:: 32:note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
   68   | 488  |   w hiinllei n(ec ocnosnts tcehxaprr*  caobnsslt_ ncuhlalra*b laeb salb_snlu_llloagb_lien tnearmnea#l#_Icmhpelc(k _ o p _ r e s u l t                  \ 
       \| 
                               ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:257:/usr/local/clang/include/absl/base/nullability.h23::257 :23note: :expanded from macro 'absl_nullable' 
note: expanded from macro 'absl_nullable'  
257 | #  d257e | f#idneef ianbes la_bnsull_lnaublllea b_lNeu l_lNaublllea
b      l| e                      ^

      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const TIn file included from 1s2/s2polyline_simplifier.cc&: 18v:
1In file included from ,../src/s2/s2polyline_simplifier.h :c63o:
nIn file included from s../src/s2/s1chord_angle.ht: 31T:
2In file included from &../src/s2/s2pointutil.h :v272:
,../src/s2/util/math/matrix3x3.h :c276o:n5s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*../src/s2/base/logging.h :a37b:s21l:_ nnote: oexpanded from macro 'S2_CHECK_NE'n
nul   l37  | e#xdperftienxet )S 2{_ C H E C K\__
NE       | C                                              ^NH
oEnC/usr/local/clang/include/absl/base/nullability.hnK:u_241lN:lE22

:             | | note:                      ^                    ^expanded from macro 'absl_nonnull'


  /usr/local/clang/include/absl/log/check.h241: | 120#:d3e:f inote: nexpanded from macro 'CHECK_NE'e
 ab  s120l | _ n oAnBnSuLl_lL O_GN_oInNnTuElRlN
A      L| _                     ^C
HECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text,In file included from  s2/s2predicates.ccv:a18l:
2In file included from ,../src/s2/s2predicates.h :v57a:
lIn file included from 2../src/s2/s1chord_angle.h_:t29e:
xIn file included from t../src/s2/s1angle.h):
28      :
| In file included from   ^../src/s2/s2point.h
:25:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/util/coding/coder.h75::3661:
:In file included from  ../src/s2/base/casts.h:note: 36expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP':

In file included from ../src/s2/base/logging.h:21:
   In file included from 75/usr/local/clang/include/absl/log/check.h | : 37 :
AIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hS:L21_:
L/usr/local/clang/include/absl/log/internal/check_op.hO:G507_:I1N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL/usr/local/clang/include/absl/log/internal/check_op.h_:In file included from C497s2/s2polygon.ccH::E3218C::
K In file included from (note: ../src/s2/s2polygon.h:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'::
34a:
bIn file included from s  ../src/s2/mutable_s2shape_index.hl497:: | 41: :
i In file included from mi../src/s2/s2cell_id.hpn:ll43ii:
cnIn file included from ie../src/s2/s1angle.ht :_c28co:
anIn file included from ss../src/s2/s2point.htt:<e27cx:
opIn file included from nr../src/s2/s2coder.hs :tc23 o:
n/usr/local/clang/include/absl/status/status.hsc:th1063 a:cr13h*:a  rawarning: *btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s
alb_sn lo1063_n | nncuuollnllsa>tb( l ce h  an ra *m\ e
a#      b#| sI                                                            ^lm
_pnl/usr/local/clang/include/absl/base/nullability.ho(:n 241n :u 22l l:    Snote:  texpanded from macro 'absl_nonnull' a
 t u   s241 M |  e# sd se af gi en Ae\s 
Ca      Sb| ts                               ^rl
(_
n/usr/local/clang/include/absl/base/nullability.h      o:| n257            ^n:
u23l:l /usr/local/clang/include/absl/base/nullability.h :note: _241expanded from macro 'absl_nullable'N:
o22n:  n 257u | note: l#expanded from macro 'absl_nonnull'ld

e      f  | i241                     ^n | 
e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nonnu:
ll)In file included from 
../src/s2/s2coder.h      :| 23                        ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  565241: | 36#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne absl_n  o565n | n u lvlo i_dN oUnnnluolclk
S      l| o                     ^w
(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2/s2projections.cci:n18e:
 In file included from a../src/s2/s2projections.hb:s27l:
_In file included from n../src/s2/r2.hu:l22l:
aIn file included from b../src/s2/util/math/vector.hl:e36 :
_In file included from N../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                      ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr constIn file included from  s2/s2polyline_measures.ccc:h18a:
rIn file included from *../src/s2/s2polyline_measures.h :a29b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hn:a23m:
eIn file included from #/usr/local/clang/include/absl/status/status.h#:I67m:
pIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h(: 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 576 : 49 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                ^
  /usr/local/clang/include/absl/base/nullability.h576: | 257 : 23v:o inote: dexpanded from macro 'absl_nullable' 
Tr  y257R | e#mdoevfei(nbea saeb_siln_tneurlnlaalb:l:eP e_rNTuhlrleaabdlSey
n      c| h                      ^*
 absl_nonnullIn file included from  s2/s2projections.ccs:)18;:

In file included from       ../src/s2/s2projections.h| :                                                ^27
:
In file included from ../src/s2/r2.h/usr/local/clang/include/absl/base/nullability.h::22241:
:In file included from 22../src/s2/util/math/vector.hIn file included from ::s2/s2polyline.cc 36:note: :
expanded from macro 'absl_nonnull'18In file included from 
:
../src/s2/base/logging.hIn file included from :  ../src/s2/s2polyline.h21241::
 | 33#In file included from :
d/usr/local/clang/include/absl/log/check.hIn file included from e:f../src/s2/s1angle.h37i::
n28eIn file included from :
 /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from a:b../src/s2/s2point.hs21l::
_27n/usr/local/clang/include/absl/log/internal/check_op.ho:
n:nIn file included from 502u../src/s2/s2coder.h:l:l1 23_::
N In file included from warning: o/usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:n
u67/usr/local/clang/include/absl/log/internal/check_op.hl:
l:/usr/local/clang/include/absl/status/internal/status_internal.h
489:      :149| 47                     ^::
13 : note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  489 |    149  |  c o n scto ncshtaIn file included from  rs2/s2polyline_measures.ccT*:1 18&a:
 bIn file included from vs../src/s2/s2polyline_measures.h1l:,_29 n:
coIn file included from onn../src/s2/s1angle.hns:ut28l :
lT In file included from 2M../src/s2/s2point.h&a :kve272C:
,hIn file included from  ec../src/s2/s2coder.hco:knF23sat:
i lIn file included from cS/usr/local/clang/include/absl/status/status.hht:ar67ri:
*n In file included from ga/usr/local/clang/include/absl/status/internal/status_internal.h(b
:s      l29| _            ^:
n
In file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :e31x:
p/usr/local/clang/include/absl/synchronization/mutex.hr:t578e:x45t:)  warning: {type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/base/nullability.h :   241\578:
 | 22       : |  vnote:                                               ^oexpanded from macro 'absl_nonnull'
i
d/usr/local/clang/include/absl/base/nullability.h :B241l:o  c22k241(:b |  anote: #sexpanded from macro 'absl_nonnull'ed
e_  fi241ni | nt#eedr eanfabils:nle:_ nPaeobrnTnsuhlrl_eln aod_nSNynnocunlhnl*u l _alN
bo      ns| n                     ^lu_
lnlo
n      n| u                     ^l
l s);In file included from 
s2/s2polyline.cc      :| 18                                            ^:

In file included from ../src/s2/s2polyline.h:/usr/local/clang/include/absl/base/nullability.h33::
241In file included from :../src/s2/s1angle.h22::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
e/usr/local/clang/include/absl/status/internal/status_internal.h :a150b:s25l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l150  | _ N o n ncuolnls
t       | a                     ^b
sl::Status* absl_noIn file included from ns2/s2polyline_measures.ccn:u18l:
lIn file included from  ../src/s2/s2polyline_measures.hs:t29a:
In file included from tIn file included from s2/s2projections.ccu../src/s2/s1angle.h:s:18,28:
 :
In file included from cIn file included from ../src/s2/s2projections.ho../src/s2/s2point.h:n:27s27:
t:
In file included from  In file included from ../src/s2/r2.hc../src/s2/s2coder.h:h:22a23:
r:
In file included from *In file included from ../src/s2/util/math/vector.h /usr/local/clang/include/absl/status/status.h:a:36b67:
s:
In file included from lIn file included from ../src/s2/base/logging.h_/usr/local/clang/include/absl/status/internal/status_internal.h:n:21o29:
n:
In file included from nIn file included from /usr/local/clang/include/absl/log/check.hu/usr/local/clang/include/absl/strings/cord.h:l:37l94:
 :
In file included from pIn file included from /usr/local/clang/include/absl/log/internal/check_impl.hr/usr/local/clang/include/absl/strings/internal/cordz_info.h:e:21f31:
i:
/usr/local/clang/include/absl/log/internal/check_op.hx/usr/local/clang/include/absl/synchronization/mutex.h:):502;580:
:1      34:| :                         ^ warning: 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
:
241/usr/local/clang/include/absl/log/internal/check_op.h::22497  ::580 32 | : note:   bexpanded from macro 'absl_nonnull'anote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
e
  _241i |   n#t497de | e rf niailn:ne:l PianebreTsh lc_onnosntneurxelaplr  _dcNooSnynnscntuh lclh
*a       r| a*                     ^ b
asbls_ln_unlullalbalbIn file included from els2/s2polyline.cc eW: a18nk:
aeIn file included from mu../src/s2/s2polyline.hep:(#33#
:
I      In file included from m| ../src/s2/s1angle.h                                 ^p:
l28(:
/usr/local/clang/include/absl/base/nullability.h In file included from : ../src/s2/s2point.h 257: :27 23:
 :In file included from   ../src/s2/s2coder.h : note: 23 expanded from macro 'absl_nullable':
 
In file included from  /usr/local/clang/include/absl/status/status.h   :257 67  | :
#/usr/local/clang/include/absl/status/internal/status_internal.hd e:f i150 n: e58\ :a
b       warning: s| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                               ^l

_n/usr/local/clang/include/absl/base/nullability.hu  l:l150a257b | :l 23e  : _  Ncunote: lolexpanded from macro 'absl_nullable'na
sbt   l257ea
 | b#sdl      e:f| :                      ^iSntea 
taubss*l _anbusllIn file included from l_s2/s2polyline_measures.ccanbo:lnen u_lNl18u :
lsIn file included from ltaabt../src/s2/s2polyline_measures.hlues
,:       29| c                      ^o:

nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from In file included from a../src/s2/s2point.hrs2/s2projections.cc*:: 2718a:
:
bIn file included from In file included from s../src/s2/s2coder.h../src/s2/s2projections.hl::_2327n:
:
oIn file included from In file included from n/usr/local/clang/include/absl/status/status.h../src/s2/r2.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hp:29r:
In file included from /usr/local/clang/include/absl/strings/cord.he:f94i:
xIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
|                                                          ^/usr/local/clang/include/absl/synchronization/mutex.h
:581:38:/usr/local/clang/include/absl/base/nullability.h :241warning: :22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
    581241 |  |  # d e f i nbea saeb_siln_tneornnnaull:l: P_eNroTnhnruelald
S      y| n                     ^c
h* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.hIn file included from :s2/s2polyline_measures.cc36::
18In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2polyline_measures.h36::
29In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s1angle.h21::
28In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2point.h37::
27In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2coder.h21::
23/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 513/usr/local/clang/include/absl/status/status.h::1767: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: :22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
efi/usr/local/clang/include/absl/synchronization/mutex.hn:e624 :a68b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
onnull _N  o624n | n u lelx
p      l| i                     ^c
it MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_noIn file included from ns2/s2projections.ccn:u18l:
lIn file included from  ../src/s2/s2projections.hm:u27):
 In file included from A../src/s2/r2.hB:S22L:
_In file included from S../src/s2/util/math/vector.hH:A36R:
EIn file included from D../src/s2/base/logging.h_:L21O:
CIn file included from K/usr/local/clang/include/absl/log/check.h_:F37U:
NIn file included from C/usr/local/clang/include/absl/log/internal/check_impl.hT:I21O:
N/usr/local/clang/include/absl/log/internal/check_op.h(:m503u:)1
:       | warning:                                   ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  241503: | 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
LO  G241_ | I#NdTeEfRiNnAeL _aCbHsElC_Kn_oOnPn_uIlMlP L_(NCohnencukl_lN
E      ,|                       ^!
=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexprIn file included from  s2/s2polyline_measures.ccc:o18n:
sIn file included from t../src/s2/s2polyline_measures.h :c29h:
aIn file included from r../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
uIn file included from l../src/s2/s2coder.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/status/status.h :n67a:
mIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h#:#29I:
mIn file included from p/usr/local/clang/include/absl/strings/cord.hl:(94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
  /usr/local/clang/include/absl/synchronization/mutex.h : 681 : 74 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
  \
      |                                  ^681
 |   /usr/local/clang/include/absl/base/nullability.he:x257p:l23i:c inote: texpanded from macro 'absl_nullable' 
Re  a257d | e#rdMeuftienxeL oacbks(lM_untuelxl&a bmlue  A_BNSuLl_lIaNbTlEeR
N      A| L                      ^_
ATTRIBUTE_In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
CAPTUREDIn file included from _s2/s2predicates.ccB:Y18(:
tIn file included from h../src/s2/s2predicates.hi:s57):
,In file included from 
../src/s2/s1chord_angle.h      :| 29                                                                         ^~~~:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nu/usr/local/clang/include/absl/synchronization/mutex.hl:l689a:b35l:e  warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
eckst  r689c | a s eecxmpplfiacliste IRmepald(e
r      M| u            ^t
ex/usr/local/clang/include/absl/base/nullability.hL:o257c:k23(:M unote: texpanded from macro 'absl_nullable'e
x*   257a | b#sdle_fnionnen ualbls lm_un,u lcloanbslte  C_oNnudliltaibolne&
       c| o                      ^n
d)
      | In file included from                                   ^s2/s2predicates.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2predicates.h::24157::
22In file included from :../src/s2/s1chord_angle.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d25e:
fIn file included from i../src/s2/util/coding/coder.hn:e36 :
aIn file included from b../src/s2/base/casts.hs:l36_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h
:      521| :                     ^17
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :s2/s2polyline_measures.cc522::1817:
:In file included from  ../src/s2/s2polyline_measures.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from ../src/s2/s1angle.h  :52228 | :
 In file included from  ../src/s2/s2point.h : 27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
cIn file included from h/usr/local/clang/include/absl/status/status.ha:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31e:
xp/usr/local/clang/include/absl/synchronization/mutex.hr:t710e:x74t:) ;warning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                 ^
  /usr/local/clang/include/absl/base/nullability.h710: | 241 : 22e:x pnote: lexpanded from macro 'absl_nonnull'i
c  i241t |  #WdreiftienreM uatbesxlL_oncokn(nMuultle x_&N omnun uAlBlS
L      _| I                     ^N
TERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1:/usr/local/clang/include/absl/synchronization/mutex.h :warning: 731type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
35: warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
498:35:   note: 731expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' | 
  ex  p498l | i c i t   W riintte rvM1u,t eixnLto cvk2(,M uctoenxs*t  acbhsalr_*n oanbnsull_ln omnun,u lclo nesxtp rCtoenxdti)t i{o n &   c o n d ) 
        |                                    ^ 
   /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                                  ^ 
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
In file included from   s2/s2projections.cc289: | 18#:
dIn file included from e../src/s2/s2projections.hf:i27n:
eIn file included from  ../src/s2/r2.ha:b22s:
lIn file included from _../src/s2/util/math/vector.hn:u36l:
lIn file included from a../src/s2/base/logging.hb:i21l:
iIn file included from t/usr/local/clang/include/absl/log/check.hy:_37u:
nIn file included from k/usr/local/clang/include/absl/log/internal/check_impl.hn:o21w:
n /usr/local/clang/include/absl/log/internal/check_op.h_:N504u:l1l:_ uwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
peci  f504i | eAdB
S      L| _                                 ^L
OG_INTERNAL_CHECK_OP_IMPL(ChIn file included from es2/s2polyline_measures.ccc:k18_:
LIn file included from E../src/s2/s2polyline_measures.h,: 29<:
=In file included from )../src/s2/s1angle.h
:      28| :
^In file included from 
../src/s2/s2point.h:27:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h488::2332:
:In file included from  /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29488:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h :i94n:
lIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hn:e31 :
c/usr/local/clang/include/absl/synchronization/mutex.ho:n830s:t14e:x pwarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con  s830t |   c h a r *  baobosll _(n*ualblsalb_lneo nnnaumlel# #fIumnpcl)(( T *   a b s l            \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit CondiIn file included from ts2/s2polyline_alignment.cci:o17n:
(In file included from c../src/s2/s2polyline_alignment.ho:n24s:
tIn file included from  ../src/s2/s2polyline.hb:o33o:
lIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from c/usr/local/clang/include/absl/status/status.ho:n67d:
)In file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                                 ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
489:14  :241  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efin  e489  | a b s l _ n ovnoniudl l( *_aNbosnln_unlull
l      a| b                     ^l
e invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2polyline_measures.cc:: 18note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2polyline_measures.h:29  :
257In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29_:
NIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94a:
bIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.he:
31      :
|                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from In file included from s2/s2polyline.cc../src/s2/util/math/vector.h::1836:
:
In file included from In file included from ../src/s2/s2polyline.h../src/s2/base/logging.h::3321:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/check.h::2837:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_impl.h::2721:
:
In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/log/internal/check_op.h23::
505:/usr/local/clang/include/absl/status/status.h1::1031 :In file included from 42warning: s2/s2polyline_alignment.cc:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]: 
17warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2polyline_alignment.h  
:50524 | :
AIn file included from B../src/s2/s2polyline.hS:L33_:
 LIn file included from 1031O../src/s2/s1angle.h | G:i_28nI:
lNIn file included from iT../src/s2/s2point.hnE:eR27 N:
cAIn file included from oL../src/s2/s2coder.hn_:sC23tH:
 EIn file included from sC/usr/local/clang/include/absl/status/status.htK:a_67tO:
uPIn file included from s_/usr/local/clang/include/absl/status/internal/status_internal.h_I:iM29nP:
tLIn file included from e(/usr/local/clang/include/absl/strings/cord.hrC:nh94ae:
lcIn file included from :k/usr/local/clang/include/absl/strings/internal/cordz_info.h:_:SL31tT:
a,/usr/local/clang/include/absl/synchronization/mutex.h t:<u549)s:
R40      e:| p ^*warning: 
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
b/usr/local/clang/include/absl/log/internal/check_op.hs:l488  _:549n32 | o: n  nnote: suexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'tl
alt iS  ct488 a | vt ou isid:n :lIRinencperT eocmPoeonnistntSteyexnrpc(rh Sceomn(sMt
u       tc| eh                                         ^xa
*r *a ba/usr/local/clang/include/absl/base/nullability.hsb:ls241_l:n_o22nnu:nl ulnote: laexpanded from macro 'absl_nonnull'lb
 lme  u 241,n | 
a#      md| ee                                       ^#f
#iIn/usr/local/clang/include/absl/base/nullability.hme:p 241la:(b22 s: l  _note:  nexpanded from macro 'absl_nonnull' o
 n n   u 241l  | l #  d_ eN fo in nn eu  l al\b

s            l| | _                     ^                               ^n

onnu/usr/local/clang/include/absl/base/nullability.hl:l257 :_23N:o nnote: nexpanded from macro 'absl_nullable'u
ll  
257       | | #                     ^d
efine absl_nullIn file included from as2/s2polyline_alignment.ccb:l17e:
 In file included from _../src/s2/s2polyline_alignment.hN:u24l:
lIn file included from a../src/s2/s2polyline.hb:l33e:

In file included from       ../src/s2/s1angle.h| :                      ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2projections.ccIn file included from :/usr/local/clang/include/absl/strings/cord.h18::
In file included from 94In file included from s2/s2polyline.cc:
../src/s2/s2projections.h:In file included from :18/usr/local/clang/include/absl/strings/internal/cordz_info.h27:
::
In file included from 31In file included from ../src/s2/s2polyline.h:
../src/s2/r2.h:/usr/local/clang/include/absl/synchronization/mutex.h:33:22:
550:
In file included from :In file included from ../src/s2/s1angle.h64../src/s2/util/math/vector.h:::28 36:
:
warning: In file included from In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h../src/s2/base/logging.h
::2721:
:
In file included from In file included from   ../src/s2/s2coder.h/usr/local/clang/include/absl/log/check.h550:: | 2337 :
:
 In file included from /usr/local/clang/include/absl/status/status.h /usr/local/clang/include/absl/log/internal/check_impl.h: :1038 21 ::
 33/usr/local/clang/include/absl/log/internal/check_op.h ::  505 : warning: 1 :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
 warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  1038/usr/local/clang/include/absl/log/internal/check_op.h  |  :  489  :  47  :s   tnote:  aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' t
 u s _   i489 n | bt ae sr en _a il n:ct:oeSnrtsnatat luT:s1:RPeepr*T harbesald_Snyonncnhu*l la brselp_)n o{n
n      u| l                                ^l
 w)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22                                                               ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 886../src/s2/s2coder.hIn file included from ::s2/s2polyline.cc3123:::
18 In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from warning: :../src/s2/s2polyline.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67:
:
33In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from   :../src/s2/s1angle.h88629: | :
28 In file included from :
 /usr/local/clang/include/absl/strings/cord.hIn file included from e:../src/s2/s2point.hx94:p:
27lIn file included from :
i/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from c:../src/s2/s2coder.hi31:t:
23 /usr/local/clang/include/absl/synchronization/mutex.h:
C:/usr/local/clang/include/absl/status/status.ho552:n:d106364i::t13i :owarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
c  o552 n | 1063 s | t c o n  Ts t*    ca h ba r *s  l a_ b ns oln _ n o n nn u lu ll   lS t  a to u sbbMaejsses_)aign
etA      esr| Cn                              ^Satlr:(:
P
      e| r            ^T
h/usr/local/clang/include/absl/base/nullability.hr:/usr/local/clang/include/absl/base/nullability.he241:a:241d22:S:22y :n cnote: note: hexpanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'*

   a241b   | s#241ld | _e#nfoidnneneu lfalbi swl,n_
ne      o | na                                                               ^nb
us/usr/local/clang/include/absl/base/nullability.hll:l_241 n:_o22Nn:on unnote: nexpanded from macro 'absl_nonnull'lu
lll   
_241      N | | #                     ^od
enfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SIn file included from ys2/s2polyline_measures.ccn:c18h:
WIn file included from a../src/s2/s2polyline_measures.hi:t29P:
aIn file included from r../src/s2/s1angle.ha:m28s:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
wIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hi:t29p:
,In file included from  /usr/local/clang/include/absl/strings/cord.hi:n94t:
 In file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hl:a31g:
s/usr/local/clang/include/absl/synchronization/mutex.h):;896
:      31| :                                     ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   note: 896expanded from macro 'absl_nonnull' | 
    e241x | p#ldiecfiitn eC oanbdsilt_inoonn(ncuolnls t_ NTo*n naublsll
_      n| o                     ^n
null obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2polyline_alignment.cc
:17:
  In file included from 241../src/s2/s2polyline_alignment.h | :#24d:
eIn file included from f../src/s2/s2polyline.hi:n33e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23_:
NIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHoIn file included from ws2/s2polyline_measures.cc :a18b:
sIn file included from l../src/s2/s2polyline_measures.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from h../src/s2/s2point.ho:w27,:

In file included from       ../src/s2/s2coder.h| :                                  ^23
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e922 :a48b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onnu  l922l |   _ Nsotnantuilcl 
b      o| o                     ^l
 GuaranteeIn file included from ds2/s2polyline_alignment.ccE:q17u:
aIn file included from l../src/s2/s2polyline_alignment.h(:c24o:
nIn file included from s../src/s2/s2polyline.ht: 33C:
oIn file included from n../src/s2/s1angle.hd:i28t:
iIn file included from o../src/s2/s2point.hn:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
,In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                                               ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/base/nullability.h31::
257/usr/local/clang/include/absl/synchronization/mutex.h::23559:: 46note: :expanded from macro 'absl_nullable' 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
257 | #  d559e | f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
c      o| n                      ^s
t ConditionIn file included from *s2/s2polyline_measures.cc :a18b:
sIn file included from l../src/s2/s2polyline_measures.h_:n29u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from  ../src/s2/s2point.hc:o27n:
dIn file included from ,../src/s2/s2coder.h
:      23| :
                                             ^In file included from 
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
257In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::29 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/cord.h
:94  :
257In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n923e: 48a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nul  l923a | b l e   _ N u l l a b l e 
        |                        ^ 
             const CondIn file included from is2/s2polyline_alignment.cct:i17o:
nIn file included from *../src/s2/s2polyline_alignment.h :a24b:
sIn file included from l../src/s2/s2polyline.h_:n33u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from  ../src/s2/s2point.hb:)27;:

In file included from       ../src/s2/s2coder.h| :                                               ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67257:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 257/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i562n:e23 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l562l | a b lveo i_dN uLlolcakbSlleo
w      (| M                      ^u
How a&bs lv_1n,o ncnounlslt  hTo2w&,  vc2o,n scto nCsotn dcihtairo*n *a basbls_lIn file included from n_ons2/s2polyline_measures.ccnu:nlulla18lb :
leeIn file included from x ../src/s2/s2polyline_measures.hpcr:ot29nedx:
,tIn file included from 
)../src/s2/s1angle.h       :| {                      ^28 
 :
/usr/local/clang/include/absl/base/nullability.h In file included from : ../src/s2/s2point.h:27 :
\In file included from 
../src/s2/s2coder.h      :| 23                                              ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e948f:i10n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_n  o948n | n u lblo o_lN o(n*naublsll
_      n| u                     ^241l
:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
eva  l241_ | )#(dceofnisnte  Caobnsdli_tnioonnn*u lalb s_lN_onnonnunlull
l      )|                       ^=
 nullptr;
      |          ^
In file included from s2/s2polyline_alignment.cc/usr/local/clang/include/absl/base/nullability.h::17257:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58:In file included from  s2/s2projections.cc:warning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2projections.h:27:
  In file included from 562../src/s2/r2.h | : 22 :
vIn file included from o../src/s2/util/math/vector.hi:d36 :
LIn file included from o../src/s2/base/logging.hc:k21S:
lIn file included from o/usr/local/clang/include/absl/log/check.hw:(37M:
uIn file included from H/usr/local/clang/include/absl/log/internal/check_impl.ho:w21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s505l:_1n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll/usr/local/clang/include/absl/log/internal/check_op.h :h497o:w32,:  cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
st C  o497n | d i tiinolni*n ea cbosnls_tneuxlplra bcloen scto ncdh,a
r      *|                                                           ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:u23l:l anote: bexpanded from macro 'absl_nullable'l
e   n257a | m#ed#e#fIimnpel (a b s l _ n u l l a b l e   _ N u l l a\b
l      e| 
                               ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      | In file included from                       ^s2/s2polyline_alignment.cc
:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2projections.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2projections.h27::
27In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/r2.h23::
22In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/util/math/vector.h67::
36In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h94::
37In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h31::
21:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::565505::361::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:498  :56535 | :   note: vexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'o
id   U498n | l o c k S l oiwn(tS yvn1c,h Wianitt Pva2r,a mcso*n satb sclh_anru*l laabbslle_ nwoanintupl)l  AeBxSpLr_tAeTxTtR)I B{U T E _ C O L D ; 
        |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257\:
23      :|                                    ^note: 
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/base/nullability.h:  241257: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fniunlel aabblsel __nNounlnlualbll e_
N      o| n                      ^n
ull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2polyline_measures.h:
:In file included from 29/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94In file included from ../src/s2/s2point.h:
s2/s2projections.cc:In file included from :27/usr/local/clang/include/absl/strings/internal/cordz_info.h18:
::
In file included from 31In file included from ../src/s2/s2coder.h:
../src/s2/s2projections.h::/usr/local/clang/include/absl/synchronization/mutex.h2327::
:
586In file included from In file included from :/usr/local/clang/include/absl/status/status.h../src/s2/r2.h43:::6722 :
warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from /usr/local/clang/include/absl/status/internal/status_internal.h
../src/s2/util/math/vector.h::2936:
  :
In file included from 586In file included from /usr/local/clang/include/absl/strings/cord.h | ../src/s2/base/logging.h :: 9421v:
:
oIn file included from In file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/check.hd:: 3137F:
:
eIn file included from /usr/local/clang/include/absl/synchronization/mutex.hr/usr/local/clang/include/absl/log/internal/check_impl.h(::b94821a::
s48/usr/local/clang/include/absl/log/internal/check_op.he::_ 506i:warning: nternal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const vola1ti:l e warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Mtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
u
tex*     948506a |  | b As BlSb_Lno_uLollOl G(a*_baIblNseT lE/_R*NinAgLnu_oClrlHaeEbdCl*Ke/_ )O eP{_}I
Mv      Pa| Ll                                       ^_(
C)h/usr/local/clang/include/absl/base/nullability.h(e:cc257ko:_n23sG:Et  note: ,expanded from macro 'absl_nullable'C o
>n=  d)257
i | t      #i| do^efn
*i n/usr/local/clang/include/absl/log/internal/check_op.hea: b488as:bl32s_:nlo _nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'nu
ulll  al488b) | l  e  =i_ nNlnuilunlela lbcploetn
sr      t;| e                      ^
x
p      r|                                                 ^c
onst/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl_  n241u | l#ldaebflien en aambes#l#_Inmopnln(u l l   _ N o n n u l l 
        |                       ^ 
   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define In file included from as2/s2polyline_measures.ccb:s18l:
_In file included from n../src/s2/s2polyline_measures.hu:l29l:
aIn file included from b../src/s2/s1angle.hl:e28 :
_In file included from N../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                      ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: In file included from warning: s2/s2projections.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2projections.h  :95127 | :
 In file included from  ../src/s2/r2.hv:o22i:
dIn file included from *../src/s2/util/math/vector.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:r21g:
_/usr/local/clang/include/absl/log/internal/check_op.h :=506 :n1u:l lwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
r;/usr/local/clang/include/absl/log/internal/check_op.h
:      489| :        ^47
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'257
:23:   note: 489expanded from macro 'absl_nullable' | 
     257  |  # dceofnisnte  Ta1b&s lv_1n,u lcloanbslte  T_2N&u lvl2367a, warningb slc generatedeo.
n
s      t|                        ^c
har* absl_noIn file included from ns2/s2polyline_measures.ccn:u18l:
lIn file included from  ../src/s2/s2polyline_measures.he:x29p:
rIn file included from t../src/s2/s1angle.he:x28t:
)In file included from  ../src/s2/s2point.h{: 27 :
 In file included from  ../src/s2/s2coder.h :\23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                              ^:
67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f954i:n52e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n954n | u l ls t_aNtoincn ublolo
l       | C                     ^a
llVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2polyline_measures.cc::50618::
1In file included from :../src/s2/s2polyline_measures.h :warning: 29type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.h::28497:
:In file included from 32../src/s2/s2point.h:: 27note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h497: | 67 :
 In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:l29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht:e31x:
p/usr/local/clang/include/absl/synchronization/mutex.hr: 956c:o52n:s tIn file included from warning:  s2/s2polyline_alignment.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:h
17a:
rIn file included from *  ../src/s2/s2polyline_alignment.h 956:a | 24b :
s In file included from ls../src/s2/s2polyline.ht_:ant33iu:
lcIn file included from  l../src/s2/s1angle.hab:bo28lo:
elIn file included from   ../src/s2/s2point.hCna:as27mt:
eAIn file included from #n../src/s2/s2coder.h#d:IC23ma:
plIn file included from ll/usr/local/clang/include/absl/status/status.h(F: u67n :
c tIn file included from  i/usr/local/clang/include/absl/status/internal/status_internal.h o: n29( :
 cIn file included from  o/usr/local/clang/include/absl/strings/cord.h n: s94 t:
  In file included from  C/usr/local/clang/include/absl/strings/internal/cordz_info.h o: n31 d:
i /usr/local/clang/include/absl/synchronization/mutex.h t:\i624
o:n      68*| :                               ^  
awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s/usr/local/clang/include/absl/base/nullability.hl
:_257n:o23  n:n624 u | lnote:  expanded from macro 'absl_nullable'l 
e x  pc257l) | ;i#
cdi      etf|  i                                                   ^Mnu
et ea/usr/local/clang/include/absl/base/nullability.hxbLsolc_:kn(uMl241ultaeb:xl&e 22 m_:uN  uAlnote: Blexpanded from macro 'absl_nonnull'SaLb_l
IeN  
T241      E | | R                      ^#N
dAeLf_iAnTeT RaIbBsIn file included from Uls2/s2projections.ccT_:En18_o:
CnIn file included from An../src/s2/s2projections.huP:Tl27Ul:
RE In file included from _D../src/s2/r2.h_N:oBn22Yn:
(uIn file included from ltl../src/s2/util/math/vector.h
h:i      36s| :
                     ^)In file included from )
../src/s2/base/logging.h
:      21| :
                                                                   ^~~~In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:In file included from 1s2/s2polyline_measures.cc:: 18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2polyline_measures.h:/usr/local/clang/include/absl/log/internal/check_op.h29::
498In file included from :../src/s2/s1angle.h35::28 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'../src/s2/s2point.h
:27:
In file included from   ../src/s2/s2coder.h498: | 23 :
 /usr/local/clang/include/absl/synchronization/mutex.hIn file included from  : /usr/local/clang/include/absl/status/status.h635 :: 6729i:
:nIn file included from  t/usr/local/clang/include/absl/status/internal/status_internal.hwarning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v29
1:
,In file included from  /usr/local/clang/include/absl/strings/cord.h  i:635n94 | t :
  veIn file included from 2x,p/usr/local/clang/include/absl/strings/internal/cordz_info.h lci:ocn31istt:
  /usr/local/clang/include/absl/synchronization/mutex.hMcuh:ta958erx:*L 50oac:bk s(warning: lM_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]unt
oenxn  *u 958lal | b   ssetlaxt_ipcnro tbnoenxoult )l Cla{s  m ut ) A n A dBC aSl L _l ME eX Ct Lh oU dS( Ic oVn\sEt
_       LC| oOn                                  ^dCi
Kt_/usr/local/clang/include/absl/base/nullability.hFi:Uo241nN:*C 22Ta:Ib Osnote: lN_expanded from macro 'absl_nonnull'n(o
nm  nu241)u | 
l#l       dc| )                            ^;e

f      i/usr/local/clang/include/absl/base/nullability.hn| :e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   exIn file included from ps2/s2projections.ccl:i18c:
iIn file included from t../src/s2/s2projections.h :R27e:
aIn file included from d../src/s2/r2.he:r22M:
uIn file included from t../src/s2/util/math/vector.he:x36L:
oIn file included from c../src/s2/base/logging.hk:(21M:
uIn file included from t/usr/local/clang/include/absl/log/check.he:x37&:
 In file included from m/usr/local/clang/include/absl/log/internal/check_impl.hu: 21A:
B/usr/local/clang/include/absl/log/internal/check_op.hS:L507_:I1N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL_  A507T | TARBISBLU_TLEO_GC_AIPNTTUERRENDA_LB_YC(HtEhCiKs_)O)P
_      I| M                                                                         ^~~~P
L(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inl/usr/local/clang/include/absl/synchronization/mutex.hi:n678e: 35c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
expr   678c | o n setx pclhiacri*t  aRbesald_enruMlultaebxlLeo cnka(mMeu#t#eIxm*p la(b s l _ n o n n u l l   m u )   A B S L\_
S      H| A                               ^R
ED/usr/local/clang/include/absl/base/nullability.h_:L257O:C23K:_ Fnote: Uexpanded from macro 'absl_nullable'N
CT  I257O | N#(dmeuf)i
n      e|                                    ^a
bsl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 _  N241u | l#ldaebflien
e       | a                      ^b
sl_nonnull _NIn file included from os2/s2projections.ccn:n18u:
lIn file included from l../src/s2/s2projections.h
:      27| :
                     ^In file included from 
../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |   In file included from  s2/s2polyline_alignment.cc : 17 :
cIn file included from o../src/s2/s2polyline_alignment.hn:s24t:
 In file included from T../src/s2/s2polyline.h1:&33 :
vIn file included from 1../src/s2/s1angle.h,: 28c:
oIn file included from n../src/s2/s2point.hs:t27 :
TIn file included from 2../src/s2/s2coder.h&: 23v:
2In file included from ,/usr/local/clang/include/absl/status/status.h :c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29c:
hIn file included from a/usr/local/clang/include/absl/strings/cord.hr:*94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.ho:n681n:u74l:l  warning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]x
prtex  t681) |   {  e x p l i\c
i      t|                                                ^R
ea/usr/local/clang/include/absl/base/nullability.hd:e241r:M22u:t enote: xexpanded from macro 'absl_nonnull'L
oc  k241( | M#udteefxi&n em ua bAsBlS_Ln_oInNnTuElRlN A_LN_oAnTnTuRlIlB
U      T| E                     ^_
CAPTURED_BY(this),
      |                                                                          ^~~~
                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/synchronization/mutex.h :689note: :expanded from macro 'absl_nonnull'35
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #  d689e | f i neex palbiscli_tn oRnenaudlelr In file included from M_s2/s2projections.ccuN:to18en:
xnIn file included from Lu../src/s2/s2projections.hol:cl27k
:
(      In file included from M| ../src/s2/r2.hu                     ^:t
22e:
xIn file included from *../src/s2/util/math/vector.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from m/usr/local/clang/include/absl/log/internal/check_impl.hu:,21 :
c/usr/local/clang/include/absl/log/internal/check_op.ho:n507s:t1 :C owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
it/usr/local/clang/include/absl/log/internal/check_op.hi:o497nIn file included from :&s2/s2polyline_measures.cc32 ::c18 o:
note: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from d
)../src/s2/s2polyline_measures.h
:        29497| :
 |                                   ^ In file included from 
 ../src/s2/s1angle.hi:/usr/local/clang/include/absl/base/nullability.hn28:l:
241iIn file included from :n../src/s2/s2point.h22e:: 27 c:
note: oexpanded from macro 'absl_nonnull'In file included from n
s../src/s2/s2coder.ht  e:241x23 | p#:
rd In file included from ecf/usr/local/clang/include/absl/status/status.hoin:nse67t  :
acbIn file included from hs/usr/local/clang/include/absl/status/internal/status_internal.halr_:*n 29oan:
bnIn file included from su/usr/local/clang/include/absl/strings/cord.hll_:ln 94u_l:
NloaIn file included from nbn/usr/local/clang/include/absl/strings/internal/cordz_info.hluel :ln
31a      :
m| /usr/local/clang/include/absl/synchronization/mutex.he                     ^:#
961#:I34m:p lwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       961  |      s t a t i c   b o o\l
       C| a                               ^l
lB/usr/local/clang/include/absl/base/nullability.hy:R257e:f23(:c onote: nexpanded from macro 'absl_nullable's
t   T257* |  #adbesfli_nneo nanbuslll_ nsuelllfa)b l{e
       _| N                                 ^u
lla/usr/local/clang/include/absl/base/nullability.hb:l241e:
22      :|                        ^
note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2projections.cce:f18i:
nIn file included from e../src/s2/s2projections.h :a27b:
sIn file included from l../src/s2/r2.h_:n22o:
nIn file included from n../src/s2/util/math/vector.hu:l36l:
 In file included from _../src/s2/base/logging.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                     ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, cIn file included from os2/s2polyline_measures.ccn:s18t:
 In file included from cIn file included from ../src/s2/s2polyline_measures.hhs2/s2polyline_alignment.cc:a:r2917*:
:
 In file included from In file included from a../src/s2/s1angle.h../src/s2/s2polyline_alignment.hb::s2824l:
:
_In file included from In file included from n../src/s2/s2point.h../src/s2/s2polyline.ho::n2733n:
:
uIn file included from In file included from l../src/s2/s2coder.h../src/s2/s1angle.hl:: 2328e:
:
xIn file included from In file included from p/usr/local/clang/include/absl/status/status.h../src/s2/s2point.hr::t6727e:
:
xIn file included from In file included from t/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit Writ) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:s2/s2region_intersection.cc29::
17In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2region_intersection.h94::
25In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/base/logging.h31::
21/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 979/usr/local/clang/include/absl/log/check.h::4337::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40  :
979In file included from  | /usr/local/clang/include/absl/log/internal/nullstream.h : 37s:
ta/usr/local/clang/include/absl/strings/string_view.ht:i53c: 54b:o owarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
AlwaysTru   e53( | ccoonenrsstMtu eCtoxnepdxirL toiscotknr*(iM naugbts_evlxi&_en uwm lulN uaAblBllSeS)L a{_ fIreNeStTtuErRrinN ntArgLVu_eiA;e T}w
T(      Rc| Io                                          ^BnU
sTtE/usr/local/clang/include/absl/base/nullability.h _:cC257hAaP:rT*U23 RaE:bD s_note: lexpanded from macro 'absl_nullable'B_Y
n(u  tlh257li | a#sbd)le)ef
 i      pn| e                                                                         ^~~~) 
a b{s
l      _| n                                                     ^u
llable/usr/local/clang/include/absl/base/nullability.h :_257N:u23l:l anote: bexpanded from macro 'absl_nullable'l
e
        | 257/usr/local/clang/include/absl/synchronization/mutex.h                      ^ | :#
718d:e35f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _718n | u l leaxbpllei c_iNtu lWlraibtleer
M      u| t                      ^e
xLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WIn file included from rs2/s2polyline_measures.cci:t18e:
rIn file included from M../src/s2/s2polyline_measures.hu:t29e:
xIn file included from L../src/s2/s1angle.ho:c28k:
(In file included from M../src/s2/s2point.hu:t27e:
xIn file included from &../src/s2/s2coder.h :m23u:
 In file included from A/usr/local/clang/include/absl/status/status.hB:S67L:
_In file included from I/usr/local/clang/include/absl/status/internal/status_internal.hN:T29E:
RIn file included from N/usr/local/clang/include/absl/strings/cord.hA:L94_:
AIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hT:R31I:
B/usr/local/clang/include/absl/synchronization/mutex.hU:T1033E:_20C:A Pwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]U
RED _1033B | Y ( tvhoiisd) ,W
a      i| t                                                                         ^~~~(
Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h241::73122::35 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #731d | e f ienxep laibcsilt_ nWornintuelrlM u_tNeoxnLnouclkl(
M      u| t                     ^e
x* absl_nonnull mu, const In file included from Cs2/s2polyline_measures.cco:n18d:
iIn file included from t../src/s2/s2polyline_measures.hi:o29n:
&In file included from  ../src/s2/s1angle.hc:o28n:
dIn file included from )../src/s2/s2point.h
:      27| :
                                  ^In file included from 
../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull':
29:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h | :#94d:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31e:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b1050s:l31_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  _1050N | o n nbuololl
       W| a                     ^i
tWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deIn file included from as2/s2polyline_alignment.ccd:l17i:
nIn file included from e../src/s2/s2polyline_alignment.h): 24{:

In file included from       ../src/s2/s2polyline.h| :                               ^33
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l801 :_20N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 801                     ^ | 
  Condition(bool (*absl_nonnull funcIn file included from )s2/s2polyline_measures.cc(:v18o:
iIn file included from d../src/s2/s2polyline_measures.h*: 29a:
bIn file included from s../src/s2/s1angle.hl:_28n:
uIn file included from l../src/s2/s2point.hl:a27b:
iIn file included from l../src/s2/s2coder.hi:t23y:
_In file included from u/usr/local/clang/include/absl/status/status.hn:k67n:
oIn file included from w/usr/local/clang/include/absl/status/internal/status_internal.hn:)29,:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                   ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:/usr/local/clang/include/absl/synchronization/mutex.h22::1088 :note: 35expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#de f1088i | n e  vaoid EnableDebugLog(conbst cshla_rn*o nanbuslll_ n_uNl/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2region_union.cc -o s2/s2region_union.o
olnanbullel 
n      a| m                     ^e
);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 257s2/s2polyline_alignment.cc::2317::
 In file included from ../src/s2/s2polyline_alignment.hnote: :24expanded from macro 'absl_nullable':

In file included from ../src/s2/s2polyline.h:33:
In file included from   ../src/s2/s1angle.h257: | 28#:
dIn file included from e../src/s2/s2point.hf:i27n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:l29e:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:u94l:
lIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:l31e:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 801                      ^:
45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(In file included from vs2/s2polyline_measures.cco:i18d:
*In file included from  ../src/s2/s2polyline_measures.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:i27l:
iIn file included from t../src/s2/s2coder.hy:_23u:
nIn file included from k/usr/local/clang/include/absl/status/status.hn:o67w:
nIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h,:
29      :
| In file included from                                             ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091/usr/local/clang/include/absl/base/nullability.h::26289:: 34:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nullability_unknown'
 1091   | 289  |  #bdoeofli nWea iatbCsolm_mnounl(lMaubtielxi*t ya_busnlk_nnoownnn u_lNlu lmlu_tuenxs,p
e      c| i                         ^f
ie/usr/local/clang/include/absl/base/nullability.hd:
241      :| 22                                 ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2polyline_alignment.cco:n17n:
uIn file included from l../src/s2/s2polyline_alignment.hl: 24_:
NIn file included from o../src/s2/s2polyline.hn:n33u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  In file included from 802s2/s2polyline_measures.cc | : 18 :
 In file included from  ../src/s2/s2polyline_measures.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
vIn file included from o../src/s2/s2point.hi:d27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hi:l29i:
tIn file included from y/usr/local/clang/include/absl/strings/cord.h_:u94n:
kIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:w31n:
 /usr/local/clang/include/absl/synchronization/mutex.ha:r1093g:)46;:
       | warning:                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:289 :109334 | :   note: vexpanded from macro 'absl_nullability_unknown'o
id   289R | e#mdoevfei(nbea saeb_siln_tneurlnlaalb:i:lPietryT_hurnekandoSwynn c_hN*u lalb_suln_snpoencniuflile ds
)      ;| 
                                 ^      
|                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2polyline_alignment.ccn:n17u:
lIn file included from l../src/s2/s2polyline_alignment.h :_24N:
oIn file included from n../src/s2/s2polyline.hn:u33l:
lIn file included from 
../src/s2/s1angle.h      :| 28                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absIn file included from ls2/s2polyline_measures.cc_:n18u:
lIn file included from l../src/s2/s2polyline_measures.ha:b29l:
eIn file included from  ../src/s2/s1angle.h_:N28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from 
../src/s2/s2coder.h      :| 23                      ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2projections.cc31::
18:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2projections.h1109::2734:
:In file included from  ../src/s2/r2.h:warning: 22:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/util/math/vector.h:36:
In file included from  ../src/s2/base/logging.h1109: | 21 :
 In file included from e/usr/local/clang/include/absl/log/check.hx:p37l:
iIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hi:t21 :
M/usr/local/clang/include/absl/log/internal/check_op.hu:t512e:x17L:o cwarning: ktype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]M
ayb  e512( | M u t e xc*o nasbts lc_hnaurl*l aabblsel _mnuu)l
l      a| b                                 ^l
e s/usr/local/clang/include/absl/base/nullability.h1:,257 :c23o:n snote: texpanded from macro 'absl_nullable' 
ch  a257r | *# daebfsiln_en ualblsalb_lneu lsl2a,b
l      e|                  ^_
Nu/usr/local/clang/include/absl/base/nullability.hl:l257a:b23l:e 
      note: | expanded from macro 'absl_nullable'                      ^

  257 | #define absl_nullable _NullableIn file included from 
s2/s2polyline_measures.cc      :| 18                      ^:

In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2projections.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2projections.h/usr/local/clang/include/absl/status/status.h::2767:
:
In file included from In file included from ../src/s2/r2.h/usr/local/clang/include/absl/status/internal/status_internal.h::2229:
:
In file included from In file included from ../src/s2/util/math/vector.h/usr/local/clang/include/absl/strings/cord.h::3694:
:
In file included from In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/internal/cordz_info.hs2/s2polygon.cc:::213118:
:
:
In file included from In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/check.h../src/s2/s2polygon.h:::11173734::
:
34In file included from In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/mutable_s2shape_index.h ::21warning: 44:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
/usr/local/clang/include/absl/log/internal/check_op.h
In file included from :../src/s2/s2pointutil.h512::2747 :
:1117  | ../src/s2/util/math/matrix3x3.hwarning:  :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 276
e:x5p:l   i512warning: c | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i 
t   M uc  to276en | xs Lt o  cc khSMa2ar_y*Cb HeaE(bCMsKul_t_NenExu(*ld leaatbb,sl leV_ Tnsyu1pl,el (ac0bo)ln)es  t<m <uc ,h" a crCo*an nsa'tbt s Clio_nnnvdueilrtlsiaeob.nl &eD  ecsto2en,rd
m)      i
| n                                                    ^a| 
n                                 ^t
/usr/local/clang/include/absl/base/nullability.h :=257/usr/local/clang/include/absl/base/nullability.h ::023257.::" 23;:note: 
 expanded from macro 'absl_nullable'      
note: | expanded from macro 'absl_nullable'    ^  

257 |   #257d | ../src/s2/base/logging.he#:fd37ie:nf21ei: n aebnote:  sexpanded from macro 'S2_CHECK_NE'al
b_sn   lu37_l | nl#uadlbellfaeib nl_eeN  uS_l2Nl_uaClbHllEaeCb
Kl      _e| N
                      ^E      
 | C                      ^H
ECIn file included from Ks2/s2projections.cc_:N18E:

In file included from       ../src/s2/s2projections.h| :                    ^27
:
In file included from ../src/s2/r2.h:/usr/local/clang/include/absl/log/check.h22::
120In file included from :../src/s2/util/math/vector.h3::36 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'CHECK_NE':
21:
In file included from /usr/local/clang/include/absl/log/check.h  :12037 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
L/usr/local/clang/include/absl/log/internal/check_op.h_:L513O:G17_:I Nwarning: TIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Es2/s2polyline_measures.cc
R:N18  A:
513LIn file included from  | _../src/s2/s2polyline_measures.h C: H29 E :
CcIn file included from Ko../src/s2/s1angle.h_n:Ns28Et:
_ In file included from Ic../src/s2/s2point.hMh:Pa27Lr:
(*In file included from ( ../src/s2/s2coder.hva:ab23ls:
1lIn file included from )_/usr/local/clang/include/absl/status/status.h,n: o67#n:
vnIn file included from au/usr/local/clang/include/absl/status/internal/status_internal.hll:1l29, :
 eIn file included from (x/usr/local/clang/include/absl/strings/cord.hvp:ar94lt:
2eIn file included from )x/usr/local/clang/include/absl/strings/internal/cordz_info.h,t: )31#;:
v
/usr/local/clang/include/absl/synchronization/mutex.ha      :l| 11322                ^:)
10
:      /usr/local/clang/include/absl/base/nullability.h | :warning:   ^241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
:
22:/usr/local/clang/include/absl/log/internal/check_impl.h : 51note: 1132:expanded from macro 'absl_nonnull' | 3
 :  M  note: u241expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL't | 
e#xd*e    f51ai | bn se l A_aBnbSusLll_l_LanOboGln_enI uNclTolEn Rs_NtNA oLmn_unC_uH;lE
lC      
K|       _         ^| O
P                     ^(
/usr/local/clang/include/absl/base/nullability.hC:h257e:c23k:_ Nnote: Eexpanded from macro 'absl_nullable',
 !  =257, |  #vdIn file included from aes2/s2projections.cclf:1i18,n:
 eIn file included from v ../src/s2/s2projections.haa:lb271s:
_lIn file included from t_../src/s2/r2.hen:xu22tl:
,lIn file included from  a../src/s2/util/math/vector.hvb:al36le:
2 In file included from ,_../src/s2/base/logging.h N:vu21al:
llIn file included from 2a/usr/local/clang/include/absl/log/check.h_b:tl37ee:
x
In file included from t      /usr/local/clang/include/absl/log/internal/check_impl.h)| :
                      ^21      
:
| /usr/local/clang/include/absl/log/internal/check_op.h  ^:
514:13/usr/local/clang/include/absl/log/internal/check_op.h:: 68:warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'  
514 | co   n68s | t   cwhhairl*e  a(bcsoln_sntu lclhaabrl*e  aCbhselc_knsutlrlcambplfea lasbesIlm_pllo(g
_      i| n            ^t
er/usr/local/clang/include/absl/base/nullability.hn:a257l:_23c:h enote: cexpanded from macro 'absl_nullable'k
_o  p257_ | r#edseuflitn e   a b s l _ n u l l\a
b      l| e                     ^ 
_Nullable
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from s2/s2projections.ccnote: :expanded from macro 'absl_nullable'18
:
In file included from ../src/s2/s2projections.h  :25727 | :
#In file included from d../src/s2/r2.he:f22i:
nIn file included from e../src/s2/util/math/vector.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.ha:b37l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl:a515b:l17e:
       | warning:                       ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  515 |     const char* absl_nullable sIn file included from 1s2/s2polyline_measures.cc,: 18c:
oIn file included from n../src/s2/s2polyline_measures.hs:t29 :
cIn file included from h../src/s2/s1angle.ha:r28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
In file included from sIn file included from s2/s2polygon.cc2/usr/local/clang/include/absl/status/internal/status_internal.h:,:18
29:
      :
In file included from | In file included from ../src/s2/s2polygon.h                ^/usr/local/clang/include/absl/strings/cord.h:
:3494:
/usr/local/clang/include/absl/base/nullability.h:
In file included from :In file included from ../src/s2/mutable_s2shape_index.h257/usr/local/clang/include/absl/strings/internal/cordz_info.h:::442331:
::
In file included from  /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2pointutil.h:note: :1146expanded from macro 'absl_nullable'27:
:
7:../src/s2/util/math/matrix3x3.h   :257276warning:  | :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]#5
d:e fwarning: i type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n1146
e |   ../src/s2/base/logging.ha :b 37s :l 21_ :nt uhnote: liexpanded from macro 'S2_CHECK_NE'ls
a)b)l    eA37 B | _S#NLdu_elEflXiaCnbLelU eSS
I2      V_| EC                      ^_H
LEOCCKK__NFEIn file included from U s2/s2projections.ccNC:CH18TE:
ICIn file included from OK../src/s2/s2projections.hN_:(N27mE:
u
In file included from )      ../src/s2/r2.h
| :                          ^22| 
:
      ^~~~In file included from 
../src/s2/util/math/vector.h/usr/local/clang/include/absl/log/check.h::36120:
:In file included from 3../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'CHECK_NE'/usr/local/clang/include/absl/log/check.h
:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h120: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.hA:B515S:L47_:L Owarning: Gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
INT  E515R | N A/usr/local/clang/include/absl/synchronization/mutex.h L:_ 1153CH :Ec39Co:Kn _swarning: Nttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E 
_cIhMa Pr1153L* | (  (a vbeasxllp1_l)ni,uc li#ltva abRlle1el, e sa(1sv,aa blcl2oe)nM,su tt# evcxahLlao2rc)*k
 (      aM| bu  ^st
le_x/usr/local/clang/include/absl/log/internal/check_impl.hn*:u 51la:lb3as:bl l_note: enexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' o
sn2n,u
   l      51l|  |                                                ^ m
 uA)/usr/local/clang/include/absl/base/nullability.hB
:S      257L| :_                                      ^23L
:O G/usr/local/clang/include/absl/base/nullability.hnote: _:Iexpanded from macro 'absl_nullable'241N
:T22  E:R257 N | note: A#expanded from macro 'absl_nonnull'Ld
_eCf  Hi241En | Ce#K d_aeObfPsi(lnC_ehn euaclbkls_alNb_Eln,eo  n!_n=Nu,ul llvl aa_lbN1lo,en 
nv      ua| ll                      ^l1

_      t| e                     ^x
In file included from ts2/s2projections.cc,: 18v:
aIn file included from l../src/s2/s2projections.h2:,27 :
vIn file included from a../src/s2/r2.hl:222_:
tIn file included from e../src/s2/util/math/vector.hx:t36):

In file included from       ../src/s2/base/logging.h| :  ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_op.h::3775:
:In file included from 61/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: In file included from /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP's2/s2polyline_measures.cc:
:51618::
17In file included from    :../src/s2/s2polyline_measures.h75 : | 29warning:  :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] In file included from 
A../src/s2/s1angle.hB:  S28516L:
 | _In file included from  L../src/s2/s2point.h O: G27 _:
cIIn file included from oN../src/s2/s2coder.hnT:sE23tR:
 NIn file included from cA/usr/local/clang/include/absl/status/status.hhL:a_67rC:
*HIn file included from  E/usr/local/clang/include/absl/status/internal/status_internal.haC:bK29s(:
l:In file included from _:/usr/local/clang/include/absl/strings/cord.hna:ob94ns:
nlIn file included from u:/usr/local/clang/include/absl/strings/internal/cordz_info.hl::li31 m:
ep/usr/local/clang/include/absl/synchronization/mutex.hxl:pi1158rc:ti53et:x_ tcwarning: )a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes];s

t      <| c                ^ o
1158n | /usr/local/clang/include/absl/base/nullability.hs :t 241  :c 22h :a  rMnote: *uexpanded from macro 'absl_nonnull' t
aebx  s&241l  | _m#nudo enAfnBiuSnlLel_ >Ia(Nb Ts E R N A\Ln
_u      Al| Tl                                                            ^T

R      I| /usr/local/clang/include/absl/base/nullability.hB                     ^:U
241T:E22_:C Anote: Pexpanded from macro 'absl_nonnull'T
In file included from Us2/s2polyline_alignment.cc  R:E24117D | :
_#In file included from Bd../src/s2/s2polyline_alignment.hYe:(f24ti:
hnIn file included from ie../src/s2/s2polyline.hs :)a33,b:

sIn file included from       l../src/s2/s1angle.h| _:                                                    ^~~~n28
o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42:/usr/local/clang/include/absl/synchronization/mutex.h :1166warning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]39
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
814 |    C1166o | n d ietxipolni(cbioto lR e(l*eaabssalb_lneoMnuntuelxlL ofcukn(cM)u(tTe*x *a basbls_ln_unlolnanbuillli tmyu_,u nckonnoswtn )C,o
n      d| i                                         ^t
ion/usr/local/clang/include/absl/base/nullability.h&: 289c:o34n:d )note: 
expanded from macro 'absl_nullability_unknown'      
|                                       ^
  289 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibniel iatbys_lu_nnkonnonwunl l_ N_uNloln_nuunlslp
e      c| i                     ^f
ied
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2polyline_measures.cc::81518::
16In file included from :../src/s2/s2polyline_measures.h :29warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
  In file included from 815../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
TIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31i:
l/usr/local/clang/include/absl/synchronization/mutex.hi:t1179y:_10u:n kwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
wn  a1179r | g ) ;M
u      t| e               ^x
* /usr/local/clang/include/absl/base/nullability.ha:b289s:l34_:n unote: lexpanded from macro 'absl_nullability_unknown'l
ab  l289e |  #mdue_f;i
n      e|           ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:u23l:l anote: bexpanded from macro 'absl_nullable'i
li  t257y | _#udnekfnionwen  a_bNsull_ln_uulnlsapbelcei f_iNeudl
l      a| b                                 ^l
e
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* abIn file included from ss2/s2polyline_measures.ccl:_18n:
uIn file included from l../src/s2/s2polyline_measures.hl:a29b:
iIn file included from l../src/s2/s1angle.hi:t28y:
_In file included from u../src/s2/s2point.hn:k27n:
oIn file included from w../src/s2/s2coder.hn:
23      :
| In file included from                                              ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h289::2934:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:note: 94expanded from macro 'absl_nullability_unknown':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31289:
 | /usr/local/clang/include/absl/synchronization/mutex.h#:d1212e:f52i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_ n1212u | lbloaobli lCiotnyd_iutnikonno:w:nC a_sNtuAlnld_CuanlslpMeectihfoide(dc
o      n| s                                 ^t
 Condition* absl_nonnull c) {
      |                                                    ^In file included from 
s2/s2polyline_alignment.cc:17/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2polyline_alignment.h::2224::
 In file included from ../src/s2/s2polyline.hnote: :expanded from macro 'absl_nonnull'33
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2polyline_measures.ccu:l18l:
 In file included from _../src/s2/s2polyline_measures.hN:o29n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:In file included from 54s2/s2polyline_alignment.cc:: 17:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2polyline_alignment.h
:24:
In file included from ../src/s2/s2polyline.h :122133 | :
bIn file included from o../src/s2/s1angle.ho:l28 :
CIn file included from o../src/s2/s2point.hn:d27itilon_:n:oCnansutlAln d_CNaolnlnFuulnlc
t      i| o                     ^n
(const Condition* absl_In file included from ns2/s2projections.cco:n18n:
uIn file included from l../src/s2/s2projections.hl: 27c:
)In file included from  ../src/s2/r2.h{:
22      :
| In file included from                                                      ^../src/s2/util/math/vector.h
:36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :37note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
241 | /usr/local/clang/include/absl/log/internal/check_op.h#:d517e:f13i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _517n | ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^u
llable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
In file included from       s2/s2polyline_measures.cc| :                      ^18
:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2projections.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2projections.h27::
27In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/r2.h23::
22In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/util/math/vector.h67::
36In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h94::
37In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h31::
21:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::1230518::1217::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

   5181230 |  |         cboonoslt  (c*haabrs*l _anbosnln_unlull lfaubnlce) (sT1*,  acbosnls_tn uclhlaarb*i laibtsyl__unnuklnloawbnl)e, 
s      2| ,           ^

      |                 ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::257 :23note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nullable'  
241 |   #257d | e#fdienfei naeb salb_snlo_nnnuulllla b_lNeo n_nNuullll
a      b| l                     ^e

      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from In file included from s2/s2projections.cc../src/s2/s2polyline_measures.h::1829:
:
In file included from In file included from ../src/s2/s2projections.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/r2.h../src/s2/s2point.h::2227:
:
In file included from In file included from ../src/s2/util/math/vector.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.h::2167:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/internal/status_internal.h::3729:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/cord.h::2194:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h518::3147:
:/usr/local/clang/include/absl/synchronization/mutex.h :1230warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]34
: warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]518
 |     1230  | c o n s tb ocohla r(** aabbssll__nnounlnlualbll ef usn1c,) (cTo*n satb sclh_anru*l laabbsill_intuyl_luanbklneo wsn2),,

            | |                                               ^                                 ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257289::2334::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nullability_unknown'

  257   | 289# | d#edfeifnien ea basbls_ln_unlullalbalbei l_iNtuyl_luanbklneo
w      n|                        ^_
Null_unIn file included from ss2/s2projections.ccp:e18c:
iIn file included from f../src/s2/s2projections.hi:e27d:

In file included from       ../src/s2/r2.h| :                                 ^22
:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 519s2/s2polyline_measures.cc::1718::
 In file included from ../src/s2/s2polyline_measures.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from ../src/s2/s1angle.h  :51928 | :
 In file included from  ../src/s2/s2point.h : 27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
cIn file included from h/usr/local/clang/include/absl/status/status.ha:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31e:
x/usr/local/clang/include/absl/synchronization/mutex.hp:r1231t:e8x:t )warning: ;type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

      |                 ^ 
1231 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22T:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbiinlei tayb_suln_knnoonwnnu lalr g_)N
o      n| n       ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      289| :                     ^34
: note: expanded from macro 'absl_nullability_unknown'
  289 | #defIn file included from is2/s2projections.ccn:e18 :
aIn file included from b../src/s2/s2projections.hs:l27_:
nIn file included from u../src/s2/r2.hl:l22a:
bIn file included from i../src/s2/util/math/vector.hl:i36t:
yIn file included from _../src/s2/base/logging.hu:n21k:
nIn file included from o/usr/local/clang/include/absl/log/check.hw:n37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
_/usr/local/clang/include/absl/log/internal/check_op.hu:n520s:p13e:c iwarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ed
        520|  |                                  ^c
onst char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _In file included from Ns2/s2polyline_measures.ccu:l18l:
aIn file included from b../src/s2/s2polyline_measures.hl:e29
:
      In file included from | ../src/s2/s1angle.h                      ^:
28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2projections.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2projections.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/r2.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::
29In file included from :
../src/s2/util/math/vector.hIn file included from :/usr/local/clang/include/absl/strings/cord.h36::
94In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h21::
31In file included from :
/usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/synchronization/mutex.h37::
1241In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h12::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]521
:17:  warning: 1241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
      521b | o o l   (c*oanbsstl _cnhoanrn*u lalb sflu_nncu)l(lTa*b laeb ssl1_,n uclolnasbti lcihtayr_*u nakbnsolw_nn)u,l
l      a| b           ^l
e /usr/local/clang/include/absl/base/nullability.hs:2241,:
22      :|                  ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel 
_      N| u                     ^l
lable
      In file included from | s2/s2polyline_measures.cc                      ^:
18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2projections.cc28::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2projections.h27::
27In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/r2.h23::
22In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/util/math/vector.h67::
36In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h94::
37In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h31::
21/usr/local/clang/include/absl/synchronization/mutex.h:
:/usr/local/clang/include/absl/log/internal/check_op.h1241::52134::47 : warning: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

   1241521 |  |         bcooonls t( *cahbasrl*_ naobnsnlu_lnlu lfluanbcl)e( Ts*1 ,a bcsoln_sntu lclhaabri*l iatbys_lu_nnkunlolwanb)l,e
       s| 2                                 ^,

      | /usr/local/clang/include/absl/base/nullability.h                                              ^:
289:34/usr/local/clang/include/absl/base/nullability.h:: 257:note: 23expanded from macro 'absl_nullability_unknown':
 note:   expanded from macro 'absl_nullable'289
 | #  d257e | f#idneef ianbes la_bnsull_lnaublillaibtlye_ u_nNkunlolwanb l_eN
u      l| l                      ^_
unspecIn file included from is2/s2projections.ccf:i18e:
dIn file included from 
../src/s2/s2projections.h      :| 27                                 ^:

In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2polyline_measures.cc522: | 18 :
 In file included from  ../src/s2/s2polyline_measures.h :c29o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :e29x:
pIn file included from r/usr/local/clang/include/absl/strings/cord.ht:e94x:
tIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                ^:
1242:/usr/local/clang/include/absl/base/nullability.h44::241 :22warning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
 1242   | 241  |  # d etfyipneen aambes la_bnsoln:n:utlylp e__Niodnennutlilt
y      <| T                     ^>
::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2coder.h1249::238:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
 In file included from 1249/usr/local/clang/include/absl/strings/cord.h | : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hT:*31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s845l:_45n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll ob  j845e | c t , 
        |         ^b
oo/usr/local/clang/include/absl/base/nullability.hl: 241(:a22b:s lnote: :expanded from macro 'absl_nonnull':
ty  p241e | _#iddeefnitniet ya<bTs>l:_:ntoynpneu:l:l*  _aNbosnln_unloln
n      u| l                     ^l
 method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2polyline_measures.cc::2218::
 In file included from ../src/s2/s2polyline_measures.hnote: :expanded from macro 'absl_nonnull'29
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identiIn file included from ts2/s2polyline_alignment.ccy:<17T:
>In file included from :../src/s2/s2polyline_alignment.h::t24y:
pIn file included from e../src/s2/s2polyline.h:::33*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23m:
eIn file included from t/usr/local/clang/include/absl/status/status.hh:o67d:
)In file included from (/usr/local/clang/include/absl/status/internal/status_internal.h):)29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                                          ^:
94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22:/usr/local/clang/include/absl/synchronization/mutex.h :850note: :expanded from macro 'absl_nonnull'16
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de  f850i | n e   a b s lc_onnosntn uTl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:In file included from 18s2/s2polyline_alignment.cc:
:In file included from 17../src/s2/s2polyline_measures.h:
:In file included from 29../src/s2/s2polyline_alignment.h:
:In file included from 24../src/s2/s1angle.h:
:In file included from 28../src/s2/s2polyline.h:
:In file included from 33../src/s2/s2point.h:
:In file included from 27../src/s2/s1angle.h:
:In file included from 28../src/s2/s2coder.h:
:In file included from 23../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/strings/cord.h:
:94/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1259/usr/local/clang/include/absl/strings/internal/cordz_info.h::1431::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]851
:45:  1259warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     c851o | n s t   T *  baobosll _(naobnsnlu:l:lt yopbej_eicdte,n
t      i| t             ^y
<T/usr/local/clang/include/absl/base/nullability.h>::241::t22y:p enote: :expanded from macro 'absl_nonnull':
*   a241b | s#ld_enfoinnneu lalb smle_tnhoondn)u(l)l
       _| N                                            ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2polyline_measures.cco:n18n:
uIn file included from l../src/s2/s2polyline_measures.hl: 29_:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2polyline_alignment.cc: 171260:
 | In file included from  ../src/s2/s2polyline_alignment.h : 24 :
bIn file included from o../src/s2/s2polyline.ho:l33 :
(In file included from a../src/s2/s1angle.hb:s28l:
:In file included from :../src/s2/s2point.ht:y27p:
eIn file included from _../src/s2/s2coder.hi:d23e:
nIn file included from t/usr/local/clang/include/absl/status/status.hi:t67y:
<In file included from T/usr/local/clang/include/absl/status/internal/status_internal.h>::29::
tIn file included from y/usr/local/clang/include/absl/strings/cord.hp:e94::
:In file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_855n:o34n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 me  t855h | o d )e(x)p
l      i| c                                          ^i
t /usr/local/clang/include/absl/base/nullability.hC:o241n:d22i:t inote: oexpanded from macro 'absl_nonnull'n
(c  o241n | s#td ebfoionle*  aabbssll__nnoonnnnuullll  _cNoonndn)u;l
l      
|                                        ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2polyline_alignment.cc::127917::
35In file included from :../src/s2/s2polyline_alignment.h :24warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2polyline.h
:33:
In file included from ../src/s2/s1angle.h: 281279:
 | In file included from v../src/s2/s2point.ho:i27d:
 In file included from R../src/s2/s2coder.he:g23i:
sIn file included from t/usr/local/clang/include/absl/status/status.he:r67M:
uIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:x29P:
rIn file included from o/usr/local/clang/include/absl/strings/cord.hf:i94l:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.h(:v31o:
i/usr/local/clang/include/absl/synchronization/mutex.hd: 886(:*31a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n886u | l l  efxnp)l(iicnitt6 4C_otn dwiatiito_nc(yccolnesst) )T;*
       a| b                                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'o
bj  )241
 |       #| d                              ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTraceIn file included from rs2/s2polyline_alignment.cc(:v17o:
iIn file included from d../src/s2/s2polyline_alignment.h :(24*:
aIn file included from b../src/s2/s2polyline.hs:l33_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :f27n:
)In file included from (../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h :c67h:
aIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :m896s:g31,:
       | warning:                                 ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :89622 | :   note: eexpanded from macro 'absl_nonnull'x
p  241 | #ldiecfiitn eC oanbdsilt_inoonn(ncuolnls t_ NTo*n naublsll
_      n| o                     ^n
null In file included from os2/s2polyline_measures.ccb:j18):

In file included from       ../src/s2/s2polyline_measures.h| :                              ^29
:
In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l1293l: 62_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull 
      |                      ^
1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(constIn file included from  s2/s2polyline_alignment.ccc:h17a:
rIn file included from *../src/s2/s2polyline_alignment.h :a24b:
sIn file included from l../src/s2/s2polyline.h_:n33o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from m../src/s2/s2point.hs:g27,:

In file included from       ../src/s2/s2coder.h| :                                                             ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i922n:e48 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_no  n922n | u l ls t_aNtoincn ublolo
l       | G                     ^u
aranteeIn file included from ds2/s2polyline_measures.ccE:q18u:
aIn file included from l../src/s2/s2polyline_measures.h(:c29o:
nIn file included from s../src/s2/s1angle.ht: 28C:
oIn file included from n../src/s2/s2point.hd:i27t:
iIn file included from o../src/s2/s2coder.hn:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he: 94a:
,In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                                               ^:

/usr/local/clang/include/absl/synchronization/mutex.h:1294/usr/local/clang/include/absl/base/nullability.h::62257:: 23:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nullable'
   1294257 |  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
          In file included from  s2/s2polyline_alignment.cc : 17c:
oIn file included from n../src/s2/s2polyline_alignment.hs:t24 :
vIn file included from o../src/s2/s2polyline.hi:d33*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23o:
bIn file included from j/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from                                                              ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  923241: | 48#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne   a923b | s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
       const Condition* abIn file included from ss2/s2polyline_measures.ccl:_18n:
uIn file included from l../src/s2/s2polyline_measures.hl:a29b:
lIn file included from e../src/s2/s1angle.h :b28):
;In file included from 
../src/s2/s2point.h      :| 27                                               ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
257In file included from :/usr/local/clang/include/absl/status/status.h23::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nullable':
29:
In file included from   /usr/local/clang/include/absl/strings/cord.h257: | 94#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hf:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a1309b:s35l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab l1309e |  v_oNiudl lRaebglies
t      e| r                      ^C
ondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const CordIn file included from &s2/s2polyline_alignment.cc :s17r:
cIn file included from ,../src/s2/s2polyline_alignment.h :s24t:
dIn file included from :../src/s2/s2polyline.h::s33t:
rIn file included from i../src/s2/s1angle.hn:g28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67d:
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                                                             ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:22/usr/local/clang/include/absl/synchronization/mutex.h:: 1033:note: 20expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #d e1033f | i n ev oaibds lW_aniotn(nMuultle x_*N oanbnsull_ln
o      n| n                     ^u
ll mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2polyline_measures.ccd:e18f:
iIn file included from n../src/s2/s2polyline_measures.he: 29a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |             In file included from  s2/s2polyline_alignment.cc : 17 :
 In file included from  ../src/s2/s2polyline_alignment.h : 24 :
 In file included from  ../src/s2/s2polyline.h : 33 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.hs:t27d:
:In file included from :../src/s2/s2coder.hs:t23r:
iIn file included from n/usr/local/clang/include/absl/status/status.hg:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :d31s:
t/usr/local/clang/include/absl/synchronization/mutex.h):;1050
:      31| :                                              ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:  1050note:  | expanded from macro 'absl_nonnull' 
 b  o241o | l# dWeafiitnWei tahbTsilm_enoountn(uMlult e_xN*o nanbuslll_
n      o| n                     ^n
ull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2polyline_measures.ccu:l18l:
 In file included from _../src/s2/s2polyline_measures.hN:o29n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     In file included from us2/s2polyline_alignment.ccs:i17n:
gIn file included from  ../src/s2/s2polyline_alignment.hp:o24i:
nIn file included from t../src/s2/s2polyline.he:r33 :
=In file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :v27a:
lIn file included from u../src/s2/s2coder.he:_23t:
yIn file included from p/usr/local/clang/include/absl/status/status.he:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                      ^:
1069:32/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
 1069   | 241  |  #bdoeofli nWea iatbWsilt_hnDoenandulliln e_(NMountneuxl*l 
a      b| s                     ^l
_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2polyline_alignment.cc27::
17In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2polyline_alignment.h23::
24In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2polyline.h67::
33In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s1angle.h29::
28:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2point.h501::2752:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h501: | 29:
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94e:
xIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.hl:i31c:
i/usr/local/clang/include/absl/synchronization/mutex.ht: 1088C:h35u:n kwarning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
era t1088o | r ( cvooridd_ iEnntaebrlneaDle:b:uCgoLrodgR(ecpo*n satb sclh_anro*n naublsll _tnruelel)a;b
l      e|                                                     ^n
ame/usr/local/clang/include/absl/base/nullability.h):;241
:      22| :                                  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel 
_      N| u                     ^l
lable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2polyline_alignment.cc:
:In file included from 17../src/s2/s2point.h:
:In file included from 27../src/s2/s2polyline_alignment.h:
:In file included from 24../src/s2/s2coder.h:
:In file included from 23../src/s2/s2polyline.h:
:In file included from 33/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2point.h:
:27/usr/local/clang/include/absl/strings/cord.h:
:In file included from 504../src/s2/s2coder.h::4023::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
504In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hx:p31l:
i/usr/local/clang/include/absl/synchronization/mutex.hc:i1091t: 26C:h uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
Ite r1091a | t o rb(ocooln sWta iCtoCrodm*m oanb(sMlu_tneoxn*n ualbls lc_onrodn)n;u
l      l|                                         ^m
ut/usr/local/clang/include/absl/base/nullability.he:x241,:
22      :|                           ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.hIn file included from :s2/s2polyline_alignment.cc29::
17In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2polyline_alignment.h28::
24In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2polyline.h27::
33In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s1angle.h23::
28In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2point.h67::
27In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2coder.h29::
23:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/status.h507::6743:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 507/usr/local/clang/include/absl/strings/internal/cordz_info.h | : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :v1093o:i46d:  Iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
tTr e1093e | ( c ovrodi_di nRteemronvael(:b:aCsoer_diRnetpe*r naabls:l:_PneornTnhurlela dtSryenec)h;*
       a| b                                          ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull's
);  
241       | | #                                             ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2polyline_measures.cc:/usr/local/clang/include/absl/synchronization/mutex.h18::
1109In file included from :../src/s2/s2polyline_measures.h34::29 :
In file included from warning: ../src/s2/s1angle.h:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:27:
 In file included from 1109../src/s2/s2coder.h | : 23 :
eIn file included from x/usr/local/clang/include/absl/status/status.hp:l67i:
cIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.ht: 29M:
u/usr/local/clang/include/absl/strings/cord.ht:e795x:L43o:c kwarning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ybe(  M795u | t e xf*r iaebnsdl _vnouildl aAbblsel Fmour)m
a      t| F                                 ^l
ush/usr/local/clang/include/absl/base/nullability.h(:a257b:s23l:: :note: Cexpanded from macro 'absl_nullable'o
rd  *257  | a#bdself_innoen naublsll _cnourldl,a
b      l| e                                          ^ 
_N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
In file included from       s2/s2polyline_measures.cc| :         ^18
:
In file included from ../src/s2/s2polyline_measures.h/usr/local/clang/include/absl/base/nullability.h::29257:
:In file included from 23../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2point.h
:27:
  In file included from 257../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_/usr/local/clang/include/absl/strings/cord.hn:u898l:l27a:b lwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
_Nul  l898a | b l ef
r      i| e                      ^n
d const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLIn file included from Us2/s2polyline_measures.ccS:I18V:
EIn file included from _../src/s2/s2polyline_measures.hL:O29C:
KIn file included from _../src/s2/s1angle.hF:U28N:
CIn file included from T../src/s2/s2point.hI:O27N:
(In file included from m../src/s2/s2coder.hu:)23
:
      In file included from | /usr/local/clang/include/absl/status/status.h      ^~~~:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                  /usr/local/clang/include/absl/synchronization/mutex.h : 1153 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1153  |     CeoxrpdlRiecpi*t  aRbeslle_ansuallablbel erMeupt)e;x
L      o| c                                          ^k
(Mu/usr/local/clang/include/absl/base/nullability.ht:e257x:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf imnue) 
a      b| sl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                                      ^In file included from 
s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
In file included from ../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
b/usr/local/clang/include/absl/strings/cord.hs:l961_:34n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll   _961N | o n n u lvlo
i      d|                       ^S
etTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2polyline_alignment.cc257: | 17#:
dIn file included from e../src/s2/s2polyline_alignment.hf:i24n:
eIn file included from  ../src/s2/s2polyline.ha:b33s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from _../src/s2/s2coder.hN:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                      ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158In file included from  | s2/s2polyline_measures.cc : 18 :
 In file included from  ../src/s2/s2polyline_measures.h :M29u:
tIn file included from e../src/s2/s1angle.hx:&28 :
mIn file included from u../src/s2/s2point.h :A27B:
SIn file included from L../src/s2/s2coder.h_:I23N:
TIn file included from E/usr/local/clang/include/absl/status/status.hR:N67A:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hA:T29T:
R/usr/local/clang/include/absl/strings/cord.hI:B968U:T31E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TURE  D968_ | B Y ( t hviosi)d, 
E      m| p                                                    ^~~~l
aceTree(CordRep* absl_nonnull rep, MethodId/usr/local/clang/include/absl/synchronization/mutex.he:n1166t:i39f:i ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
meth o1166d | ) ; 
e      x| p                              ^l
ic/usr/local/clang/include/absl/base/nullability.hi:t241 :R22e:l enote: aexpanded from macro 'absl_nonnull's
ab  l241e | M#udteefxiLnoec ka(bMsult_enxo*n naublsll __nNoonnnnuullll 
m      u| ,                     ^ 
const Condition& cIn file included from os2/s2polyline_measures.ccn:d18):

In file included from       ../src/s2/s2polyline_measures.h| :                                      ^29
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 /usr/local/clang/include/absl/strings/cord.ha:b972s:l31_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   972_ | N o n n uvloli
d       | E                     ^m
placeTree(CordRep* absl_nonnull rep, const InlineData& pareIn file included from ns2/s2polyline_alignment.cct:,17
:
      In file included from | ../src/s2/s2polyline_alignment.h                              ^:
24:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline.h::24133::
22In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n1179u:l10l:
       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

 1179 |   Mutex* absl_nulIn file included from ls2/s2polyline_measures.cca:b18l:
eIn file included from  ../src/s2/s2polyline_measures.hm:u29_:
;In file included from 
../src/s2/s1angle.h      :| 28         ^:

In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2coder.h::2323::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nullable'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :25729 | :
#/usr/local/clang/include/absl/strings/cord.hd:e978f:i36n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_  n978u | l l a b lveo i_dN uClolmambilteT
r      e| e                      ^(
const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordReIn file included from ps2/s2polyline_alignment.cc*: 17a:
bIn file included from s../src/s2/s2polyline_alignment.hl:_24n:
oIn file included from n../src/s2/s2polyline.hn:u33l:
lIn file included from  ../src/s2/s1angle.ht:r28e:
eIn file included from ,../src/s2/s2point.h :M27e:
tIn file included from h../src/s2/s2coder.ho:d23I:
dIn file included from e/usr/local/clang/include/absl/status/status.hn:t67i:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.he:r29 :
mIn file included from e/usr/local/clang/include/absl/strings/cord.ht:h94o:
dIn file included from )/usr/local/clang/include/absl/strings/internal/cordz_info.h;:
31      :
|                                    ^/usr/local/clang/include/absl/synchronization/mutex.h
:1212:/usr/local/clang/include/absl/base/nullability.h52::241 :22warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'absl_nonnull'
   2411212 |  | #bdoeofli nCeo nadbistli_onno:n:nCualslt A_nNdoCnanlullMle
t      h| o                     ^d
(const Condition* In file included from as2/s2polyline_measures.ccb:s18l:
_In file included from n../src/s2/s2polyline_measures.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28c:
)In file included from  ../src/s2/s2point.h{:
27      :
| In file included from                                                    ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:985:  30241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine   985a | b s l _ nvoonindu lAlp p_eNnodnTnruelel(
C      o| r                     ^d
Rep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2polyline_alignment.cca:b17s:
lIn file included from _../src/s2/s2polyline_alignment.hn:o24n:
nIn file included from u../src/s2/s2polyline.hl:l33 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2polyline_measures.cc::122118::
54In file included from :../src/s2/s2polyline_measures.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
In file included from  ../src/s2/s2point.h1221: | 27b:
oIn file included from o../src/s2/s2coder.hl: 23C:
oIn file included from n/usr/local/clang/include/absl/status/status.hd:i67t:
iIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn::29::
C/usr/local/clang/include/absl/strings/cord.ha:s986t:A40n:d Cwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lFu  n986c | t i o n (vcooinds tP rCeopnednidtTiroene*T oaInlibnseld_(nCoonrnduRlelp *c )a b{s
l      _| n                                                     ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l241 :t22r:e enote: ,expanded from macro 'absl_nonnull'

      |                                        ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrepIn file included from es2/s2polyline_alignment.ccn:d17T:
rIn file included from e../src/s2/s2polyline_alignment.he:T24o:
TIn file included from r../src/s2/s2polyline.he:e33(:
CIn file included from o../src/s2/s1angle.hr:d28R:
eIn file included from p../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ht:r29e:
eIn file included from ,/usr/local/clang/include/absl/strings/cord.h :M94e:
tIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.ho:d31I:
d/usr/local/clang/include/absl/synchronization/mutex.he:n1230t:i12f:i ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
met h1230o | d ) ; 
       b| o                                    ^o
l /usr/local/clang/include/absl/base/nullability.h(:*241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
a      b| s                     ^l
_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2polyline_measures.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2polyline_measures.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/synchronization/mutex.h:
:1230/usr/local/clang/include/absl/strings/cord.h::341078:: 33:warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |   1078  |     baobosll :(:*caobrsdl__innotnenrunlall :f:uCnocr)d(RTe*p *a basbls_ln_unlolnanbuillli tTya_kuenRkenpo(w)n )c,o
n      s| t                                 ^&
;
      /usr/local/clang/include/absl/base/nullability.h| :                                ^289
:34:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'absl_nullability_unknown'22
: note:   expanded from macro 'absl_nonnull'289
 | #  d241e | f#idneef ianbes la_bnsull_lnaobninluiltly __uNnoknnnouwlnl 
_      N| u                     ^l
l_unspecified
      |                                  ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2polyline_alignment.cc:
:In file included from 17/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2polyline_alignment.h:
:In file included from 24/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2polyline.h:
:33/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1079../src/s2/s1angle.h::3328::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23 :
1079In file included from  | /usr/local/clang/include/absl/status/status.h : 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl::29::
cIn file included from o/usr/local/clang/include/absl/strings/cord.hr:d94_:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ht:e31r:
n/usr/local/clang/include/absl/synchronization/mutex.ha:l1231:::8C:o rwarning: dtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]R
ep*  1231a | b s l _ nTo*n naublsll _TnauklelRaebpi(l)i t&y&_;u
n      k| n                                ^o
wn/usr/local/clang/include/absl/base/nullability.h :a241r:g22):
       | note:        ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241289 | :#34d:e fnote: iexpanded from macro 'absl_nullability_unknown'n
e   a289b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
i      l| i                     ^t
y_unknown _Null_unspecified
      |                                  ^
In file included from In file included from s2/s2polyline_measures.ccs2/s2polyline_alignment.cc::1817:
:
In file included from In file included from ../src/s2/s2polyline_measures.h../src/s2/s2polyline_alignment.h::2924:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2polyline.h::2833:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2327:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2coder.h::6723:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/status/status.h::2967:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/internal/status_internal.h::111629::
37In file included from :/usr/local/clang/include/absl/strings/cord.h :94warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h :11161241 | : 12 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t cr c1241_ | i n t e rbnoaoll: :(C*racbCsolr_dnSotnantuel*l  afbusnlc_)n(uTl*l aabblsel _MnauylbleaGbeitlCirtcyC_ourndkSntoawtne)(,)
       c| o           ^n
st;/usr/local/clang/include/absl/base/nullability.h
:      241| :                                    ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'257
:23:   241 | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en oanbnsull_ln u_lNloanbnluel l_
N      u| l                     ^l
able
      | In file included from                       ^s2/s2polyline_alignment.cc
:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from 31s2/s2polyline_measures.cc:
:/usr/local/clang/include/absl/synchronization/mutex.h18::
1241In file included from :../src/s2/s2polyline_measures.h34::29 :
In file included from warning: ../src/s2/s1angle.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h :124127 | :
 In file included from  ../src/s2/s2coder.h : 23b:
oIn file included from o/usr/local/clang/include/absl/status/status.hl: 67(:
*In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_/usr/local/clang/include/absl/strings/cord.hn:o1120n:n30u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
unc )1120( | T *  vaobisdl _CnouplylTaobAirlriatyyI_mupnlk(ncohwanr)*, 
a      b| s                                 ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n289n:u34l:l  note: dexpanded from macro 'absl_nullability_unknown's
t)   289c | o#ndsetf;i
n      e|                               ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'i
li  t241y | _#udnekfnionwen  a_bNsull_ln_ounnnsuplelc i_fNioendn
u      l| l                                 ^

      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2polyline_measures.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2polyline_measures.h::9429:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s1angle.h::3128:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2point.h1309::2735:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67 :
1309In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.hv:o29i:
d /usr/local/clang/include/absl/strings/cord.hR:e1140g:i49s:t ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ondV a1140r | T r a c e r ( v o i d   ( * a b s l _ n o n n u l l   f n ) ( 
C      o| r                                  ^d
Re/usr/local/clang/include/absl/base/nullability.hp:E241x:t22e:r nnote: aexpanded from macro 'absl_nonnull'l
*   a241b | s#ld_enfoinnneu lalb srle_pn)o;n
n      u| l                                                ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | In file included from #s2/s2polyline_alignment.ccd:e17f:
iIn file included from n../src/s2/s2polyline_alignment.he: 24a:
bIn file included from s../src/s2/s2polyline.hl:_33n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2polyline_measures.cc1310: | 18 :
 In file included from  ../src/s2/s2polyline_measures.h :c29o:
nIn file included from s../src/s2/s1angle.ht: 28c:
hIn file included from a../src/s2/s2point.hr:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :m29s:
g/usr/local/clang/include/absl/strings/cord.h,: 1146c:o10n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
o 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
id* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2polyline_measures.cc  :24118 | :
#In file included from d../src/s2/s2polyline_measures.he:f29i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      | /usr/local/clang/include/absl/strings/cord.h                     ^:
1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inIn file included from ls2/s2polyline_alignment.cci:n17e:
 In file included from c../src/s2/s2polyline_alignment.ho:n24s:
tIn file included from  ../src/s2/s2polyline.hc:h33a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from C/usr/local/clang/include/absl/status/status.ho:r67d:
:In file included from :/usr/local/clang/include/absl/status/internal/status_internal.hI:n29l:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he:R94e:
pIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h::a31s:
_/usr/local/clang/include/absl/synchronization/mutex.hc:h1310a:r47s:( )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ons t1310  | { 
        |                     ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  ambssgl,_ ncoonnnsutl lv o_iNdo*n naublsll
_      n| o                     ^n
null cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2predicates.ccn:n18u:
lIn file included from l../src/s2/s2predicates.h
:      57| :
                     ^In file included from 
../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82In file included from :
s2/s2polyline_alignment.ccIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h17::
23In file included from :
../src/s2/s2polyline_alignment.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h24::
32In file included from :
../src/s2/s2polyline.hIn file included from :/usr/local/clang/include/absl/strings/str_format.h33::
84In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/strings/internal/str_format/bind.h28::
29In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/strings/internal/str_format/parser.h27::
227In file included from :../src/s2/s2coder.h11::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.h'enable_if' is a clang extension [-Wgcc-compat]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  /usr/local/clang/include/absl/strings/cord.h227: | 957 : 27 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   e  n957a | b l e _ ivfo(isdt rS_eftoTrrmeaet(_CionrtdeRrenpa*l :a:bEsnls_unroenCnounlslt erxeppr,( fcoornmsatt )C,o
r      d| z          ^U
pdateSco/usr/local/clang/include/absl/strings/internal/str_format/parser.hp:e229&: 11s:c owarning: p'enable_if' is a clang extension [-Wgcc-compat]e
);
        229|  |                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: eexpanded from macro 'absl_nonnull'n
ab  l241e | _#idfe(fsitnre_ faobrsmla_tn_oinnntuelrln a_lN:o:nVnaullild
F      o| r                     ^m
atImpl<C...>(format),
      | In file included from           ^s2/s2polyline_alignment.cc
:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^

In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2polyline_measures.ccs2/s2polyline_alignment.cc::1817:
:
In file included from In file included from ../src/s2/s2polyline_measures.h../src/s2/s2polyline_alignment.h::2924:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2polyline.h::2833:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2327:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2coder.h::6723:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/status/status.h::11967::
14In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |     984S | t a t u svRoeipd*  Aapbpseln_dnTorneneuTlolT rCeleo(nCeo(r
d      R| e             ^p
* absl_nonnull tree, Method/usr/local/clang/include/absl/base/nullability.hI:d241e:n22t:i fnote: iexpanded from macro 'absl_nonnull'e
r meth  o241d | )#;d
e      f| i                                   ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2polyline_measures.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h18::
29In file included from :
../src/s2/s2polyline_measures.h:/usr/local/clang/include/absl/strings/cord.h29::
985In file included from :../src/s2/s1angle.h30::28 :
In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s2coder.h:  23985:
 | In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
v/usr/local/clang/include/absl/status/internal/status_internal.ho:i125d: 14A:p pwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
dTr  e125e | ( Co rSdtRaetpu*s Raebps*l _anbosnln_unloln nturlele ,C lMoentehAonddIUdnernetfi(f
i      e| r             ^ 
me/usr/local/clang/include/absl/base/nullability.ht:h241o:d22):; 
      note: | expanded from macro 'absl_nonnull'                             ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.hIn file included from :s2/s2polyline_measures.cc24::
18In file included from :
../src/s2/s2polyline.hIn file included from :../src/s2/s2polyline_measures.h33::
29In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s1angle.h28::
28In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2point.h27::
27In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2coder.h23::
23In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/status/status.h67::
67In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/status/internal/status_internal.h29::
128:/usr/local/clang/include/absl/strings/cord.h14::986 :40warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |     986S | t a t u svRoeipd*  Parbesple_nndoTnrneuelTlo ICnlloinneeAdn(dCUonrrdeRfe(p)*  caobnsslt_;n
o      n| n             ^u
ll/usr/local/clang/include/absl/base/nullability.h :t241r:e22e:, 
      note: | expanded from macro 'absl_nonnull'                                       ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crcIn file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:In file included from 32s2/s2region_term_indexer.cc:
:75/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 115../src/s2/s2region_term_indexer.h::52103::
 /usr/local/clang/include/absl/strings/string_view.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]53
:54: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]115
 |       co   n53s | tc osntsrt_efxoprrm astt_riinntge_rvniaelw: :NPualrlsSeadfFeoSrtmraitnBgaVsiee*w (acbosnls_tn ocnhnaurl*l  apbcs)l
_      n| u                                                   ^l
labl/usr/local/clang/include/absl/base/nullability.he: 241p:)22 :{ 
note:       expanded from macro 'absl_nonnull'| 
                                                     ^
  241 | #de/usr/local/clang/include/absl/base/nullability.hf:i257n:e23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf i_nNeo nanbuslll_
n      u| l                     ^l
able _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #defineIn file included from  s2/s2predicates.cca:b18s:
lIn file included from _../src/s2/s2predicates.hn:u57l:
lIn file included from a../src/s2/s1chord_angle.hb:i29l:
iIn file included from t../src/s2/s1angle.hy:_28u:
nIn file included from k../src/s2/s2point.hn:o27w:
nIn file included from  ../src/s2/s2coder.h_:N23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h_:u67n:
sIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.he:c29i:
fIn file included from i/usr/local/clang/include/absl/strings/cord.he:d82
:
      In file included from | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h                                 ^:
23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2region_intersection.cc
:17:
In file included from ../src/s2/s2region_intersection.h  :15525 | :
 In file included from  ../src/s2/base/logging.he:x21p:
lIn file included from i/usr/local/clang/include/absl/log/check.hc:i37t:
 In file included from F/usr/local/clang/include/absl/log/internal/check_impl.ho:r21m:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_op.hC:o41u:
nIn file included from t/usr/local/clang/include/absl/log/internal/strip.hC:a26p:
tIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hr:e47(:
iIn file included from n/usr/local/clang/include/absl/log/internal/structured_proto.ht:*27 :
aIn file included from b/usr/local/clang/include/absl/log/internal/proto.hs:l34_:
n/usr/local/clang/include/absl/types/span.ho:n213n:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknowunl l_N upl)l :_ upn_s(ppe)c i{f}i
e      d| 
                                   ^      
|                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:_23i:
nIn file included from t/usr/local/clang/include/absl/crc/crc32c.he:r32n:
a/usr/local/clang/include/absl/strings/str_format.hl::165::C8r:c Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
dS  t165a | t e *i natb*s la_bnsull_lnaobnlneu lMla ypb_e;G
e      t| C       ^r
cC/usr/local/clang/include/absl/base/nullability.ho:r241d:S22t:a tnote: eexpanded from macro 'absl_nonnull'(
)   c241o | n#sdte;f
i      n| e                                    ^ 
absl_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'_
Non  n257u | l#ld
e      f| i                     ^n
e absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2predicates.cc241: | 18#:
dIn file included from e../src/s2/s2predicates.hf:i57n:
eIn file included from  ../src/s2/s1chord_angle.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep*In file included from  s2/s2polyline_alignment.cca:b17s:
lIn file included from _../src/s2/s2polyline_alignment.hn:o24n:
nIn file included from u../src/s2/s2polyline.hl:l33 :
PIn file included from r../src/s2/s1angle.he:p28a:
rIn file included from e../src/s2/s2point.hT:o27M:
oIn file included from d../src/s2/s2coder.hi:f23y:
(In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67:
                                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::2411159::2217::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241  | 1159# | dienfliinnee  aCbosrld_Rneopn*n ualbls l__Nnoonnnnuullll
       N| e                     ^w
ExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2polyline_alignment.cc::24117::
22In file included from :../src/s2/s2polyline_alignment.h :note: 24expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2polyline.h:  33241:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
n/usr/local/clang/include/absl/strings/cord.hn:u1183l:l47
:       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nIn file included from us2/s2polyline_measures.ccl:l18a:
bIn file included from l../src/s2/s2polyline_measures.he: 29_:
NIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he:
27      :
| In file included from                       ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ll _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_measures.cc:18:
In file included from ../src/s2/s2polyline_measures.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:27:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_non/usr/local/clang/include/absl/status/status.hn:u67l:
l /usr/local/clang/include/absl/status/internal/status_internal.hc:o150r:d58): :  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
rd_(c  o150r | d )   { }c
o      n| s                                    ^t
 ab/usr/local/clang/include/absl/base/nullability.hs:l241:::22S:t anote: texpanded from macro 'absl_nonnull'u
s*   241a | b#sdle_fnionnen ualbls ls_tnaotnunsu,l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2predicates.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2predicates.h241: | 57#:
dIn file included from e../src/s2/s1chord_angle.hf:i29n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o27n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| /usr/local/clang/include/absl/strings/cord.h                     ^:
588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:33:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725In file included from :s2/s2predicates.cc38::18 :
In file included from warning: ../src/s2/s2predicates.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
57:
In file included from ../src/s2/s1chord_angle.h:29:
  In file included from 725../src/s2/s1angle.h | : 28 :
sIn file included from t../src/s2/s2point.ha:t27i:
cIn file included from  ../src/s2/s2coder.hs:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:_67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:r29n:
a/usr/local/clang/include/absl/strings/cord.hl::937::S35t:a twarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
Rep  *937  | a b s l _anbosnln:u:lclo rPdr_eipnatreerTnoaMlo:d:iCfoyr(d
R      e| p                                     ^*
 abs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   t241r | e#ed(e)f icnoen satb;s
l      _| n                                  ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:In file included from 18s2/s2polyline_alignment.cc:
:In file included from 17../src/s2/s2predicates.h:
:In file included from 57../src/s2/s2polyline_alignment.h:
:In file included from 24../src/s2/s1chord_angle.h:
:In file included from 29../src/s2/s2polyline.h:
:In file included from 33../src/s2/s1angle.h:
:In file included from 28../src/s2/s1angle.h:
:In file included from 28../src/s2/s2point.h:
:In file included from 27../src/s2/s2point.h:
:In file included from 27../src/s2/s2coder.h:
:In file included from 23../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/status/status.h:
:In file included from 732/usr/local/clang/include/absl/status/internal/status_internal.h::2929::
 /usr/local/clang/include/absl/strings/cord.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]938
:35:   warning: 732type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  s  t938a | t i c   caobnsslt: :sctodr:d:_sitnrtienrgn*a la:b:sClo_rndoRnenpu*l la bEsmlp_tnyoSntnruilnlg (a)s;_
t      r| e                            ^e
() /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:; 
      note: | expanded from macro 'absl_nonnull'                                  ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:In file included from 17s2/s2predicates.cc:
:In file included from 18../src/s2/s2polyline_alignment.h:
:In file included from 24../src/s2/s2predicates.h:
:In file included from 57../src/s2/s2polyline.h:
:In file included from 33../src/s2/s1chord_angle.h:
:In file included from 29../src/s2/s1angle.h:
:In file included from 28../src/s2/s1angle.h:
:In file included from 28../src/s2/s2point.h:
:In file included from 27../src/s2/s2point.h:
:In file included from 27../src/s2/s2coder.h:
:In file included from 23../src/s2/s2coder.h:
:23/usr/local/clang/include/absl/status/status.h:
:In file included from 733/usr/local/clang/include/absl/status/status.h::2967::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
/usr/local/clang/include/absl/strings/cord.h:939  :73317 | :   warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ati  c939  | c o n s tc osntsdt: :cshtarri*n ga*b salb_snlo_nnnounlnlu lals _McohvaerdsF(r)o mcSotnrsitn;g
(      )| ;                ^

      | /usr/local/clang/include/absl/base/nullability.h                            ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     abIn file included from ss2/s2polyline_alignment.ccl::17::
cIn file included from o../src/s2/s2polyline_alignment.hr:d24_:
iIn file included from n../src/s2/s2polyline.ht:e33r:
nIn file included from a../src/s2/s1angle.hl::28::
CIn file included from o../src/s2/s2point.hr:d27R:
eIn file included from p../src/s2/s2coder.h*: 23a:
b/usr/local/clang/include/absl/status/status.hs:l751_:n61u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le c  l751e | a r (s)t;a
t      i| c                                  ^ 
ui/usr/local/clang/include/absl/base/nullability.hn:t257p:t23r:_ tnote:  expanded from macro 'absl_nullable'P
oi  n257t | e#rdTeofRienpe( satbastlu_sn_uilnltaebrlnea l_:N:uSltlaatbulseR
e      p| *                      ^ 
absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2predicates.ccl: 18_:
NIn file included from o../src/s2/s2predicates.hn:n57u:
lIn file included from l../src/s2/s1chord_angle.h
:      29| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18In file included from :s2/s2polyline_alignment.cc :17warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2polyline_alignment.h:24:
In file included from   ../src/s2/s2polyline.h950: | 33 :
 In file included from  ../src/s2/s1angle.h :C28o:
rIn file included from d../src/s2/s2point.hR:e27p:
FIn file included from l../src/s2/s2coder.ha:t23*:
 /usr/local/clang/include/absl/status/status.ha:b752s:l44_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   M752a | k e FsltaattWiict hcEoxntsrta Csatpaatcuist_yi(nstiezren_atl :e:xSttraat)u;s
R      e| p                 ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241R | e#pdTeofPinoei natbesrl(_
n      o| n                                           ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        | 241                     ^ | 
#define absl_nonnull _NIn file included from os2/s2predicates.ccn:n18u:
lIn file included from l../src/s2/s2predicates.h
:      57| :
                     ^In file included from 
../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absIn file included from ls2/s2predicates.cc_:n18o:
nIn file included from n../src/s2/s2predicates.hu:l57l:
 In file included from R../src/s2/s1chord_angle.ho:u29n:
dIn file included from T../src/s2/s1angle.hr:i28p:
DIn file included from o../src/s2/s2point.hu:b27l:
eIn file included from T../src/s2/s2coder.ho:B23u:
fIn file included from f/usr/local/clang/include/absl/status/status.he:67:
rIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hd:o29u:
bl/usr/local/clang/include/absl/strings/cord.he: 1505d:,41 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* abs l1505_ | nionnlniunlel  vbouifdf eCro)r;d
:      :| C                                                           ^o
py/usr/local/clang/include/absl/base/nullability.hT:o241A:r22r:a ynote: Iexpanded from macro 'absl_nonnull'm
pl  (241c | h#adre*f ianbes la_bnsoln_nnuolnln udlslt )_ Nocnonnusltl 
{      
|                            ^| 
                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2polyline.ccn:u18l:
lIn file included from  ../src/s2/s2polyline.h_:N34o:
nIn file included from n../src/s2/s2builder.hu:l36l:

In file included from       ../src/s2/mutable_s2shape_index.h| :                     ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnIn file included from us2/s2predicates.ccl:l18 :
bIn file included from u../src/s2/s2predicates.hf:f57e:
rIn file included from )../src/s2/s1chord_angle.h;:
29      :
| In file included from       ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h:  67241:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
i/usr/local/clang/include/absl/strings/cord.hn:e1514 :a29b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn u1514l | l   _ N ocnonrudl_li
n      t| e                     ^r
nal::CordRIn file included from es2/s2polyline.ccp:*18 :
aIn file included from b../src/s2/s2polyline.hs:l34_:
nIn file included from o../src/s2/s2builder.hn:n36u:
lIn file included from l../src/s2/mutable_s2shape_index.h :t30r:
eIn file included from e/usr/local/clang/include/absl/container/btree_map.h): 66{:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                            ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/base/nullability.h198::
241In file included from :/usr/local/clang/include/absl/strings/str_cat.h22::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'absl_nonnull':
23:
  /usr/local/clang/include/absl/strings/numbers.h241: | 183#:d58e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l183_ | ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^R
oundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffIn file included from es2/s2predicates.ccr:)18
:
      In file included from | ../src/s2/s2predicates.h      ^:
57:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1chord_angle.h::24129::
22In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
no/usr/local/clang/include/absl/strings/cord.hn:n1525u:l29l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul l1525
 |        |                       ^ 
 cord_inteIn file included from rs2/s2polyline.ccn:a18l:
:In file included from :../src/s2/s2polyline.hC:o34r:
dIn file included from R../src/s2/s2builder.he:p36*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 70t:
rIn file included from e/usr/local/clang/include/absl/container/internal/layout.he:)198 :
{In file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116                            ^:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/strings/numbers.h241::20222::53 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #202d | ecfhianre*  aabbssll__nnoonnnnuullll  _FNaosntnIunltlT
o      B| u                     ^f
fer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from In file included from s2/s2predicates.cc/usr/local/clang/include/absl/container/btree_map.h::1866:
:
In file included from In file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/container/internal/btree.h::5770:
:
In file included from In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/container/internal/layout.h::29198:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/strings/str_cat.h::28116:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2723:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/numbers.h::23203:
:In file included from 5/usr/local/clang/include/absl/status/status.h:: 67:
warning: In file included from 'diagnose_if' is a clang extension [-Wgcc-compat]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h  :2031530 | : 55 :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_I N1530T | EiRnNlAiLn_eN ECEoDr_dM:I:NC_hSuInZkEI(tbeurfafteorr,: :kCFhausntkTIotBeurfafteorSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:r18(:c onote: nexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE's
t C  o251r | d *  _a_bastlt_rniobnuntuel_l_ (c(odrida)g n{o
s      e| _                                                      ^i
f(_/usr/local/clang/include/absl/base/nullability.h_:b241u:i22l:t inote: nexpanded from macro 'absl_nonnull'_
ob  j241e | c#td_esfiiznee( Oabbjs,l _0n)o n<n uNl,l  \_
N      o| n                 ^n
ull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) In file included from {s2/s2polyline_alignment.cc
:      17| :
                                                    ^In file included from 
../src/s2/s2polyline_alignment.h:24:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polyline.h::24133::
22In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27:
  In file included from 241../src/s2/s2coder.h | :#23d:
ef/usr/local/clang/include/absl/status/status.hi:n1031e: 42a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonnu l1031l |  i_nNloinnneu lclo
n      s| t                     ^ 
status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/btree.h::2270::
 In file included from /usr/local/clang/include/absl/container/internal/layout.hnote: :expanded from macro 'absl_nonnull'198
:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h241: | 23#:
d/usr/local/clang/include/absl/strings/numbers.he:f346i:n44e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n346n | u l l   _ N o n null
      |                       ^ 
                       int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2polyline_alignment.ccn:o17n:
nIn file included from u../src/s2/s2polyline_alignment.hl:l24 :
_In file included from N../src/s2/s2polyline.ho:n33n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* abslIn file included from _s2/s2polyline.ccn:o18n:
nIn file included from u../src/s2/s2polyline.hl:l34 :
rIn file included from e../src/s2/s2builder.hp:)36 :
{In file included from 
../src/s2/mutable_s2shape_index.h      :| 30                                ^:

In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24166::
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :70note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198  :
241In file included from  | /usr/local/clang/include/absl/strings/str_cat.h#:d116e:
fIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:e23 :
a/usr/local/clang/include/absl/strings/numbers.hb:s351l:_55n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _  N351o | n n u l l 
        |                       ^ 
                               absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                    In file included from  s2/s2polyline_alignment.cc : 17 :
 In file included from a../src/s2/s2polyline_alignment.hb:s24l:
:In file included from :../src/s2/s2polyline.hu:i33n:
tIn file included from 1../src/s2/s1angle.h2:828*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
u/usr/local/clang/include/absl/status/status.hl:l1063 :o13u:t )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{

      |                                                        ^ 
1063 | c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ar* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2predicates.cc:18:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const In file included from &s2/s2r2rect.cc,:
18      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2r2rect.h
:24  :
529In file included from  | ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
tIn file included from r/usr/local/clang/include/absl/log/internal/strip.hu:e26,:
 In file included from t/usr/local/clang/include/absl/log/internal/log_message.hr:u53e:
);
/usr/local/clang/include/absl/types/source_location.h      :| 113                  ~~~~~~~~~~~:
19: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]511
:47: note: expanded from macro 'ABSL_INTERNAL_X'  
113 |     511  |       c o n s t   c hAaBrS*L _aIbNsTlE_RnNoAnLn_uAlTlT RfIiBlUeT_En_aCmAeP T=U R_E_Db_uBiYl(ttihni_sF)I)L)E ( ) )   { 
        |                    ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 \  
241       | | #                                              ^~~~d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:/usr/local/clang/include/absl/container/internal/btree_container.h133::53225::24 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
    133532 |  |     c o n s t e x p r   c o n s t   cfhaalrs*e )a;b
s      l| _                       ^n
on/usr/local/clang/include/absl/container/internal/btree_container.hn:u496l:l9 :f inote: lmacro 'ABSL_INTERNAL_X' defined heree
_na  m496e | (#)d ecfoinnset  AnBoSeLx_cIeNpTtE R{N
A      L| _                        ^X
(F/usr/local/clang/include/absl/base/nullability.hu:n241c:,22 :C anote: lexpanded from macro 'absl_nonnull'l
In file included from e  s2/s2projections.cce241:, |  #18Kd:
QeIn file included from fu../src/s2/s2projections.hian:le28, :
 aIn file included from Mb../src/s2/s2latlng.hQs:lu27_a:
lnIn file included from ,o/usr/local/clang/include/absl/hash/hash.h n:Kn89Vu:
alIn file included from ll/usr/local/clang/include/absl/hash/internal/hash.hu :_eN79,o:
 nIn file included from Mn/usr/local/clang/include/absl/base/internal/endian.hVu:al26ll:
u
/usr/local/clang/include/absl/base/internal/unaligned_access.he      :,| 39                      ^:.
45.:. )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   \   
39       | | i        ^n
In file included from ls2/s2r2rect.cci:n18e:
 In file included from u../src/s2/s2r2rect.hi:n24t:
1In file included from 6../src/s2/base/logging.h_:t21 :
UIn file included from n/usr/local/clang/include/absl/log/check.ha:l37i:
gIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.he:d21L:
oIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hd:1416:
(In file included from c/usr/local/clang/include/absl/log/internal/strip.ho:n26s:
tIn file included from  /usr/local/clang/include/absl/log/internal/log_message.hv:o53i:
d/usr/local/clang/include/absl/types/source_location.h*: 142a:b25s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l142l |   p )c o{n
s      t| e                                            ^x
pr c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sflu_nncotninounl/usr/local/clang/include/absl/container/internal/btree_container.h_l:n 531_a:mNe3o(:)n  ncwarning: uopassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]ln
slt
         n531| o |                      ^ e
 xAcBeSpLt_ I{N
T      E| R                        ^N
AL/usr/local/clang/include/absl/base/nullability.h_:X241(:i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn,e  ianbsselr_tn_oonrn_ualsls i_gNno_ninmuplll,
       c| o                     ^n
stIn file included from  s2/s2projections.cc&:,18 :
&In file included from &../src/s2/s2projections.h,: 28f:
aIn file included from l../src/s2/s2latlng.hs:e27,:
In file included from 
In file included from s2/s2r2rect.cc      /usr/local/clang/include/absl/hash/hash.h:| :18  ^89:

:
In file included from In file included from ../src/s2/s2r2rect.h/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/hash/internal/hash.h:::2450979:
::
In file included from 52In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/internal/endian.h: :21note: 26:
expanded from macro 'ABSL_INTERNAL_X':
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h
/usr/local/clang/include/absl/log/check.h::45  37:509:
45 | In file included from : /usr/local/clang/include/absl/log/internal/check_impl.h  : warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21 
:
 In file included from      /usr/local/clang/include/absl/log/internal/check_op.h45 :  | A41iBn:
SlIn file included from Li_/usr/local/clang/include/absl/log/internal/strip.hnI:eN TuEi26Rn:
NtAIn file included from 3L/usr/local/clang/include/absl/log/internal/log_message.h2_:_A53tT T:
URn/usr/local/clang/include/absl/types/source_location.hIaB:lUiTgEn150_eCdALP:oTa40UdR:3E 2D(warning: _ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Bo
Yn(stth   ivs150o)i)d | , *     a  b   s   l _  n   o  n   n  u  l  l     p )   {  
          |                                              ^  
   /usr/local/clang/include/absl/base/nullability.h\ :
 241c      :o| 22                                                   ^n:
s t/usr/local/clang/include/absl/container/internal/common.hnote:  :expanded from macro 'absl_nonnull'c32
h:  a9241r: | *  note: #macro 'ABSL_INTERNAL_IF_false' defined heread
bes   lf32i_ | nno#edn neaufbilsnlle _ fniAoBlneSnL_u_nlIalNm Te_E)N
RoN      nA| n                                       ^Lu_
lIlF/usr/local/clang/include/absl/base/nullability.h
_:      f241| a:                     ^l22
s:e (note: iexpanded from macro 'absl_nonnull'f
_s  a241t | i#sdfeifeidn,e  .a.b.s)l __n_oVnAn_uAlRlG S__N_o
n      n| u        ^l
l
      |                      ^
In file included from s2/s2polyline.cc:18In file included from :
s2/s2projections.ccIn file included from :../src/s2/s2polyline.h18::
34In file included from :
../src/s2/s2projections.hIn file included from :../src/s2/s2builder.h28::
36In file included from :
../src/s2/s2latlng.hIn file included from :../src/s2/mutable_s2shape_index.h27::
30In file included from :
/usr/local/clang/include/absl/hash/hash.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h89::
67In file included from :
/usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/container/internal/btree_container.h::79531:
:In file included from 3/usr/local/clang/include/absl/base/internal/endian.h:: 26:
warning: In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2r2rect.cc:
:5118:  :
45531In file included from : | ../src/s2/s2r2rect.h  :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]24A
:
BIn file included from S../src/s2/base/logging.h   L:51_21 | I:
iNIn file included from nTl/usr/local/clang/include/absl/log/check.hEi:RnN37eA:
 LIn file included from u_iXn/usr/local/clang/include/absl/log/internal/check_impl.h(ti:6n4s21_e:
trIn file included from  tU_/usr/local/clang/include/absl/log/internal/check_op.hno:ar41l_:
iagsnsIn file included from eidg/usr/local/clang/include/absl/log/internal/strip.hLn:o,a di6n264s:
(ecrotIn file included from n_so/usr/local/clang/include/absl/log/internal/log_message.htr _v:aosi53sdi:
*g/usr/local/clang/include/absl/types/source_location.h na_bi:sml165p_l:n,15o nc:noun lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
p)   {165
 |        |                                              ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  afbislle__nnoanmneu_l l=  _"N"o;n
n      u| l              ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2r2rect.cc :a18b:
sIn file included from l../src/s2/s2r2rect.h_:n24o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 | s t  L&o,g M&e&s,s afgael(sceo,n
s      t|    ^c
In file included from hs2/s2projections.cca:/usr/local/clang/include/absl/container/internal/btree_container.hr18*::
 511aIn file included from b:s../src/s2/s2projections.hl52:_:28n :
onote: In file included from expanded from macro 'ABSL_INTERNAL_X'n../src/s2/s2latlng.h
n:u27l  :
l511In file included from   | /usr/local/clang/include/absl/hash/hash.h f i: l89 e:
 ,In file included from   /usr/local/clang/include/absl/hash/internal/hash.h i:n t79  :
l iIn file included from An/usr/local/clang/include/absl/base/internal/endian.hBe:S,26L
:
_      /usr/local/clang/include/absl/base/internal/unaligned_access.hI| :N                         ^65T
:E36R/usr/local/clang/include/absl/base/nullability.h:N: A241Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:A
T22T:R   I 65Bnote:  | expanded from macro 'absl_nonnull'UiT
nEl  _iCnA241eP |  T#vdUeoRfiEidD n_UBenYa(lt ihagibnssle)_d)S)nto on nr uel 6l 4  ( _v Noo in dn *u  l a lb s
 l       _|  n                     ^ o
 n n u l l\ 
p      ,|                                                     ^u
int/usr/local/clang/include/absl/container/internal/common.h6:432_:t9 :v )note:  macro 'ABSL_INTERNAL_IF_false' defined here{

      |                                    ^   
32 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ IaFb_sfla_lnsoen(niufl_ls a_tNiosnfniueldl,
       .| .                     ^.
) __VAIn file included from _s2/s2r2rect.ccA:R18G:
SIn file included from _../src/s2/s2r2rect.h_:
24      :
| In file included from         ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonIn file included from ns2/s2polyline.ccu:l18l:
 file, int linIn file included from e../src/s2/s2polyline.h,:
34      :
| In file included from                          ^../src/s2/s2builder.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/mutable_s2shape_index.h241::3022:
:In file included from  /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'absl_nonnull'67
:
  /usr/local/clang/include/absl/container/internal/btree_container.h241: | 534#:d23e:f iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
 abs  l534_ | n o n n u l l   _ N o n n u l l 
        | t                     ^r
ue);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSLIn file included from _s2/s2r2rect.ccI:N18T:
EIn file included from R../src/s2/s2r2rect.hN:A24L:
_In file included from X../src/s2/base/logging.h(:F21u:
nIn file included from c/usr/local/clang/include/absl/log/check.h,: 37C:
aIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:e21e:
,In file included from  /usr/local/clang/include/absl/log/internal/check_op.hK:Q41u:
aIn file included from l/usr/local/clang/include/absl/log/internal/strip.h,: 26M:
Q/usr/local/clang/include/absl/log/internal/log_message.hu:a80l:,26 :K Vwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ue,    80M | V a lLuoeg,M e.s.s.a)g e ( c o n\s
t       | c        ^h
ar* absl_nonnulIn file included from ls2/s2predicates.cc :f18i:
lIn file included from e../src/s2/s2predicates.h,: 57i:
nIn file included from t../src/s2/s1chord_angle.h :l31i:
nIn file included from e../src/s2/s2pointutil.h,:
27      :
|                          ^../src/s2/util/math/matrix3x3.h
:276:/usr/local/clang/include/absl/base/nullability.h5::241 :warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
  276   | 241   |   S2#_dCeHfEiCnKe_ NaEb(sdle_tn,o nVnTuylple (_0N)o)n n<u<l l"
       C| a                     ^n
't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: In file included from expanded from macro 'S2_CHECK_NE's2/s2r2rect.cc
:18:
In file included from    ../src/s2/s2r2rect.h37: | 24#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.hS:237_:
CIn file included from H/usr/local/clang/include/absl/log/internal/check_impl.hE:C21K:
_In file included from N/usr/local/clang/include/absl/log/internal/check_op.hE: 41C:
HIn file included from E/usr/local/clang/include/absl/log/internal/strip.hC:K26_:
NE/usr/local/clang/include/absl/log/internal/log_message.h
:      82| :                    ^26
: /usr/local/clang/include/absl/log/check.hwarning: :120type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
3: note:    expanded from macro 'CHECK_NE'82
 |   Log  M120e | s s aAgBeS(Lc_oLnOsGt_ IcNhTaErR*N AaLb_sClH_EnCoKn_nNuEl_lI MfPiLl(e(,v ailn1t) ,l i#nvea,l
1      ,|                           ^(
val/usr/local/clang/include/absl/base/nullability.h2:)241,: 22#:v anote: lexpanded from macro 'absl_nonnull'2
)
        241|  |   ^#
de/usr/local/clang/include/absl/log/internal/check_impl.hf:i51n:e3 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'l
_no   n51n | u l lA B_SNLo_nLnOuGl_lI
NIn file included from       Ts2/s2projections.ccE| :R                     ^18N
:
AIn file included from L../src/s2/s2projections.h_:C28H:
EIn file included from C../src/s2/s2latlng.hK:_27O:
PIn file included from (/usr/local/clang/include/absl/hash/hash.hC:h89e:
cIn file included from k/usr/local/clang/include/absl/hash/internal/hash.h_:N79E:
,/usr/local/clang/include/absl/base/internal/endian.h :!160=:,36 :v awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1
, va  l1601 | _itnelxitn,e  vuailn2t,1 6v_atl 2L_otaedx1t6)(
c      o| n  ^s
t voi/usr/local/clang/include/absl/log/internal/check_op.hd:*68 :a22b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
onn   u68l | l   pw)h i{l
e       | (                                   ^c
ons/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  aabbssll__nIn file included from loos2/s2r2rect.ccgn:_ni18nu:
tleIn file included from lr../src/s2/s2r2rect.h n:_aN24lo:
_nIn file included from cnh../src/s2/base/logging.hue:lcl21k
:
_      oIn file included from | p/usr/local/clang/include/absl/log/check.h                     ^_:
r37e:
sIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:t21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
\/usr/local/clang/include/absl/log/internal/log_message.h
:      119| :                     ^41
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |  /usr/local/clang/include/absl/base/nullability.h :L257o:g23MIn file included from :es2/s2projections.cc snote: :sexpanded from macro 'absl_nullable'a18
g:
e  &In file included from 257 ../src/s2/s2projections.h | T:o#28dSe:
ifnIn file included from ik../src/s2/s2latlng.hnAe:l s27oa:
b(In file included from sa/usr/local/clang/include/absl/hash/hash.hlb:s_89ln::
:uLIn file included from olg/usr/local/clang/include/absl/hash/internal/hash.hSli:a79nb:
kl/usr/local/clang/include/absl/base/internal/endian.he*:  164a_b:sN27lu_l:nl oawarning: bnltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ne
u
      l  l| 164                       ^s | i
nikn)l;i
n      e|                                          ^v
oid/usr/local/clang/include/absl/base/nullability.h :S241t:o22r:e 1note: 6expanded from macro 'absl_nonnull'(
vo  i241d | *# daebfsiln_en oanbnsull_ln opn,n uuliln t_1N6o_ntn uvl)l 
{      
|                            ^| 
                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2r2rect.cca:b18s:
lIn file included from _../src/s2/s2r2rect.hIn file included from n:s2/s2predicates.cco24:n:
18nIn file included from u:
../src/s2/base/logging.hlIn file included from l:../src/s2/s2predicates.h21 ::
_57In file included from N:
/usr/local/clang/include/absl/log/check.hoIn file included from n../src/s2/s1chord_angle.hn::u3731l:
:
lIn file included from In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2pointutil.h      ::| 2127                     ^:
:

In file included from ../src/s2/util/math/matrix3x3.h/usr/local/clang/include/absl/log/internal/check_op.h::27641::
5In file included from :/usr/local/clang/include/absl/log/internal/strip.h :26warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/log_message.h
:121:../src/s2/base/logging.h41::37 :warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'S2_CHECK_NE'  
121 |      37L | o#gdMeefsisnIn file included from aegs2/s2projections.cc e:&S18 2T_:
oCSIn file included from Hi../src/s2/s2projections.hE:Cn28Kk:
_OIn file included from Nn../src/s2/s2latlng.hlE:y (Cab27sH:
ElIn file included from C:/usr/local/clang/include/absl/hash/hash.hK::L_o89gN:
SEiIn file included from n
/usr/local/clang/include/absl/hash/internal/hash.hk      :*|  79                    ^a:

b/usr/local/clang/include/absl/base/internal/endian.hs:/usr/local/clang/include/absl/log/check.hl168_::120n36:o:3n :nwarning:  utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lnote: 
lexpanded from macro 'CHECK_NE' 
  s168  i | 120innk | l ) i;A
Bn      SeL| _                                         ^LuO
iGn_/usr/local/clang/include/absl/base/nullability.htI3:N2241T_E:tR 22LN:oAa Ldnote: _expanded from macro 'absl_nonnull'3C
2H(E  cCoK241n_ | NsE#t_d IevMofiidnPe* La b(a(svblas_lln_1no)onnn,un l#ulvla ll _1Npo)n ,{n 
u(      lv| al                                   ^l
2      
)| ,/usr/local/clang/include/absl/base/nullability.h                     ^ :#
241v:a22l:2 )note: 
expanded from macro 'absl_nonnull'      
|   ^  
241 | /usr/local/clang/include/absl/log/internal/check_impl.h#:d51e:f3i:n enote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'a
bsl   _51n | o n nAuBlSlL __LNOoGn_nIuNlTlE
R      N| A                     ^L
_CHECK_OP(Check_NE, !=, val1, val1_text, val2, vaIn file included from ls2/s2projections.cc2:_18t:
eIn file included from x../src/s2/s2projections.ht:In file included from )28
s2/s2r2rect.cc:
      :In file included from 18| ../src/s2/s2latlng.h  ^:
:
In file included from 27../src/s2/s2r2rect.h/usr/local/clang/include/absl/log/internal/check_op.h:
::24In file included from :
75/usr/local/clang/include/absl/hash/hash.hIn file included from ::../src/s2/base/logging.h6189:::
21 In file included from :
note: /usr/local/clang/include/absl/hash/internal/hash.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'In file included from :/usr/local/clang/include/absl/log/check.h
79::
37   :
/usr/local/clang/include/absl/base/internal/endian.hIn file included from 75:/usr/local/clang/include/absl/log/internal/check_impl.h | :172 21: :
27In file included from A/usr/local/clang/include/absl/log/internal/check_op.h:B:/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from s2/s2region_intersection.cc:17:
In file included from  ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.hwarning: :21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21172:
 | In file included from i/usr/local/clang/include/absl/log/internal/check_op.hn:l41i:
nIn file included from e/usr/local/clang/include/absl/log/internal/strip.h :v26o:
iIn file included from d/usr/local/clang/include/absl/log/internal/log_message.h :S53t:
or/usr/local/clang/include/absl/types/source_location.he:31132:(19v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 absl_  n113o | n n u l l   pc,o nusti ncth3a2r_*t  avb)s l{_
n      o| n                          ^n
ull /usr/local/clang/include/absl/base/nullability.hf:i241l:e22_:n anote: mexpanded from macro 'absl_nonnull'e
 =   241_ | _#bdueiflitnien _aFbIsLlE_(n)o)n n{u
l      l|                    ^_
Nonn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
SL_LOG_INTERNAL_CHECK(::absl:In file included from :s2/s2projections.cci:m18p:
lIn file included from i../src/s2/s2projections.hc:i28t:
_In file included from c../src/s2/s2latlng.ha:s27t:
<In file included from c/usr/local/clang/include/absl/hash/hash.ho:n89s:
tIn file included from  /usr/local/clang/include/absl/hash/internal/hash.hc:h79aIn file included from :
rs2/s2region_intersection.cc/usr/local/clang/include/absl/base/internal/endian.h*:: 17176a:
:bIn file included from 36s../src/s2/s2region_intersection.h:l: _25warning: n:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oIn file included from 
n../src/s2/base/logging.hn:u  l21176l:
 | >i(In file included from n l/usr/local/clang/include/absl/log/check.h i :n 37e  :
\uIn file included from 
i/usr/local/clang/include/absl/log/internal/check_impl.h      n:| t21                                                            ^6:

4In file included from _/usr/local/clang/include/absl/log/internal/check_op.ht: 41/usr/local/clang/include/absl/base/nullability.hL:
:oIn file included from 241a/usr/local/clang/include/absl/log/internal/strip.h:d:22626:4:
( cIn file included from note: o/usr/local/clang/include/absl/log/internal/log_message.hexpanded from macro 'absl_nonnull'n:
s53t:
   /usr/local/clang/include/absl/types/source_location.hv241o: | i133#d:d*e25 fa:ibn selwarning:  _atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nb
osnln_u  nlo133ln  | npu )l  l{ c
_o      Nn| o                                   ^sn
ntu/usr/local/clang/include/absl/base/nullability.hle:xl241
p:      r22|  :                     ^c 
onote: nexpanded from macro 'absl_nonnull's
t   c241h | a#rd*e faibnsel _anbosnln_unloln nfuillle __nNaomnen(u)l lc
o      n| s                     ^t
 noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89In file included from :
s2/s2region_intersection.ccIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h17::
79In file included from :
../src/s2/s2region_intersection.h/usr/local/clang/include/absl/base/internal/endian.h::25180:
:In file included from 27../src/s2/base/logging.h:: 21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
  In file included from 180/usr/local/clang/include/absl/log/internal/check_impl.h | :i21n:
lIn file included from i/usr/local/clang/include/absl/log/internal/check_op.hn:e41 :
vIn file included from o/usr/local/clang/include/absl/log/internal/strip.hi:d26 :
SIn file included from t/usr/local/clang/include/absl/log/internal/log_message.ho:r53e:
6/usr/local/clang/include/absl/types/source_location.h4:142:25: (warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
id*   142a | b s lc_onnosntneuxlplr  pc,o nusitn tc6h4a_rt*  va)b s{l
_      n| o                          ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :f22u:n cnote: texpanded from macro 'absl_nonnull'i
on  _241n | a#mdee(f)i nceo nasbts ln_oneoxncneupltl  {_
N      o| n                        ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inlinIn file included from es2/s2r2rect.cc :u18i:
nIn file included from t../src/s2/s2r2rect.h1:624_:
tIn file included from  ../src/s2/base/logging.hL:o21a:
dIn file included from 1/usr/local/clang/include/absl/log/check.h6:(37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
vIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hi:d41*:
 In file included from a/usr/local/clang/include/absl/log/internal/strip.hb:s26l:
_/usr/local/clang/include/absl/log/internal/log_message.hn:o190n:n42u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
) {
        190|  |                                    ^ 
 Lo/usr/local/clang/include/absl/base/nullability.hg:M241e:s22s:a gnote: eexpanded from macro 'absl_nonnull'&
 o  p241e | r#adteofri<n<e( satbds:l:_onsotnrneualml&  _(N*oanbnsull_ln
o      n| n                     ^u
ll m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2projections.cc :_18N:
oIn file included from n../src/s2/s2projections.hn:u28l:
lIn file included from 
../src/s2/s2latlng.h      :| 27                     ^:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(voIn file included from is2/s2r2rect.ccd:*18 :
aIn file included from b../src/s2/s2r2rect.hs:l24_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :p37,:
 In file included from u/usr/local/clang/include/absl/log/internal/check_impl.hi:n21t:
1In file included from 6/usr/local/clang/include/absl/log/internal/check_op.h_:t41 :
vIn file included from )/usr/local/clang/include/absl/log/internal/strip.h :{26
:
      /usr/local/clang/include/absl/log/internal/log_message.h| :                          ^191
:43:/usr/local/clang/include/absl/base/nullability.h :warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'191
 |     241L | o#gdMeefsisnaeg ea&b solp_enroantnourl<l< (_sNtodn:n:uilols
_      b| a                     ^s
e& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2projections.ccf:i18n:
eIn file included from  ../src/s2/s2projections.ha:b28s:
lIn file included from _../src/s2/s2latlng.hn:o27n:
nIn file included from u/usr/local/clang/include/absl/hash/hash.hl:l89 :
_In file included from N/usr/local/clang/include/absl/hash/internal/hash.ho:n79n:
u/usr/local/clang/include/absl/base/internal/endian.hl:l258
:      36| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absIn file included from ls2/s2r2rect.cc_:n18o:
nIn file included from n../src/s2/s2r2rect.hu:l24l:
 In file included from p../src/s2/base/logging.h): 21{:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                   ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:22: In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
note: In file included from /usr/local/clang/include/absl/log/internal/strip.h:In file included from 26:
/usr/local/clang/include/absl/log/internal/log_message.h:../src/s2/s2polyline.h306::343:
:In file included from  ../src/s2/s2builder.h:warning: 36type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h306: | 67 :
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s535l:_3n:o nwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
ll std::un  i535q | u e _ApBtSrL<_LIoNgTMEeRsNsAaLg_eXD(aitnas>e rdta_toar__;a
s      s| i  ^g
n, /usr/local/clang/include/absl/base/nullability.hi:n241s:e22r:t _note: oexpanded from macro 'absl_nonnull'r
_a  s241s | i#gdne_fiimnpel a,b sclo_nnsotn n&u,l l& &_,N otnrnuuel,l

            | |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~                     ^

  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if367_ warningssa generatedt.
isfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUIn file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
TE_CAPTURED_expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2r2rect.ccn:u18l:
lIn file included from  ../src/s2/s2r2rect.h_:N24o:
nIn file included from n../src/s2/base/logging.hu:l21l:

In file included from       /usr/local/clang/include/absl/log/check.h| :                     ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     conIn file included from ss2/s2region_intersection.cct: 17w:
cIn file included from h../src/s2/s2region_intersection.ha:r25_:
tIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_op.hc:o41n:
sIn file included from t/usr/local/clang/include/absl/log/internal/strip.h&: 26v:
)/usr/local/clang/include/absl/log/internal/log_message.h;:
191      :B| 43                   ^:Y
 (warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h/usr/local/clang/include/absl/base/nullability.h
i:s257):  )23191): |     note:  expanded from macro 'absl_nullable' L 
o g   M 257e  | s# ds ea gf ei &n  e  o apb se lr _a nt uo lr l< a<b\(l
es       t| _                                                   ^dN
:u:liloasb/usr/local/clang/include/absl/container/internal/common.h_l:be31a
:s      9e| :&                      ^  
note: (macro 'ABSL_INTERNAL_IF_true' defined here*
absl   _31n | o#ndneufliln em )A(BsStLd_:I:NiToEsR_NbAaLs_eI&F _otsr)u)e;(
i      f| _                                          ^s
at/usr/local/clang/include/absl/base/nullability.hiIn file included from :ss2/s2r2rect.cc241f::i1822e:
:dIn file included from  ,note: ../src/s2/s2r2rect.h expanded from macro 'absl_nonnull':.
24.  :
.241In file included from ) | ../src/s2/base/logging.h #i:dfe21_f:
siIn file included from ant/usr/local/clang/include/absl/log/check.hei: s37afb:
iseIn file included from ld/usr/local/clang/include/absl/log/internal/check_impl.h_
n:      o21| n        ^:
n
uIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hl: 41_:
NIn file included from o/usr/local/clang/include/absl/log/internal/strip.hn:n26u:
l/usr/local/clang/include/absl/log/internal/log_message.hl:
321      :| 52                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | iIn file included from ns2/s2polyline.ccl:i18n:
eIn file included from  ../src/s2/s2polyline.hL:o34g:
MIn file included from e../src/s2/s2builder.hs:s36a:
gIn file included from e../src/s2/mutable_s2shape_index.h&: 30L:
oIn file included from g/usr/local/clang/include/absl/container/btree_map.hM:e67s:
s/usr/local/clang/include/absl/container/internal/btree_container.ha:g537e::3::o pwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
ator<<(  w537c | h a rA_tB*S La_bIsNlT_EnRuNlAlLa_bXl(ei nvs)e r{t
_      o| r                                                   ^_
as/usr/local/clang/include/absl/base/nullability.hs:i257g:n23,:  inote: nexpanded from macro 'absl_nullable's
er  t257_ | o#rd_eafsisnieg na_bismlp_ln,u lcloanbslte  &_,N u&l&l,a btlreu
e      ,| 
                      ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2region_intersection.cc:17:
In file included from   ../src/s2/s2region_intersection.h340: | 25 :
 In file included from f../src/s2/base/logging.hr:i21e:
nIn file included from d/usr/local/clang/include/absl/log/check.h :v37o:
iIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h :A21b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hF:o41r:
mIn file included from a/usr/local/clang/include/absl/log/internal/strip.ht:F26l:
us/usr/local/clang/include/absl/log/internal/log_message.hh:(306S:t3r:i nwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
fySi  n306k | *   aabbssl/usr/local/clang/include/absl/container/internal/btree_container.hl_:_n541no:on24nn:unl ulwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] l
 ssi  tn541dk | : ,: 
u       n i|                                               ^q 
u e /usr/local/clang/include/absl/base/nullability.h_ p :t r241 < :L o22 g: M  e note: sfsaexpanded from macro 'absl_nonnull'alg
see  D)a241;t | 
#a      d>e|  f                       ^di
ant/usr/local/clang/include/absl/container/internal/btree_container.hea: _496a;b:s
9l      :_|    ^nnote: 
omacro 'ABSL_INTERNAL_X' defined heren
/usr/local/clang/include/absl/base/nullability.hn:  u241496l: | l22# d_:eN onote: fnexpanded from macro 'absl_nonnull'in
nue   l241lA | B#
Sd      Le_| fIi                     ^NnT
eE RaNbAsLl__Xn(oFnunnucl,l  C_aNlolneneu,l lK
Q      u| a                     ^l
, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from In file included from s2/s2polyline.cc:18:
s2/s2r2rect.ccIn file included from :../src/s2/s2polyline.h18::
34In file included from :
../src/s2/s2r2rect.hIn file included from :../src/s2/s2builder.h24::
36In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/mutable_s2shape_index.h21::
30In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/btree_container.h::21543:
:In file included from 23/usr/local/clang/include/absl/log/internal/check_op.h:: 41warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26  :
543 |   /usr/local/clang/include/absl/log/internal/log_message.h : 398 : 11 :    warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      t  r398u | e ) ; 
       | v                      ^o
id/usr/local/clang/include/absl/container/internal/btree_container.h*:496 :a9b:s lnote: _macro 'ABSL_INTERNAL_X' defined heren
ull  a496b | l#ed ecfoinnset &A BvS)L;_
I      N| T          ^E
RNAL_/usr/local/clang/include/absl/base/nullability.hX:(257F:u23n:c ,note:  expanded from macro 'absl_nullable'C
all  e257e | ,# dKeQfuianle,  aMbQsula_ln,u lKlVaablluee ,_ NMuVlallaubel,e 
.      .| .                      ^)
     \
      |         ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);/usr/local/clang/include/absl/container/internal/btree_container.h
:      542| :                ^3
: warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
257:23:   542note:  | expanded from macro 'absl_nullable' 
 A  B257S | L#_dIeNfTiEnReN AaLb_sXl(i_nnsuelrlta_bolre_ a_sNsuilglna,b lien
s      e| r                      ^t
_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_orIn file included from _s2/s2r2rect.cca:s18s:
iIn file included from g../src/s2/s2r2rect.hn:_24i:
mIn file included from p../src/s2/base/logging.hl:,21 :
&In file included from &/usr/local/clang/include/absl/log/check.h,: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
&In file included from ,/usr/local/clang/include/absl/log/internal/check_op.h :f41a:
lIn file included from s/usr/local/clang/include/absl/log/internal/strip.he:,26
:
      | /usr/local/clang/include/absl/log/internal/log_message.h  ^:
425:/usr/local/clang/include/absl/container/internal/btree_container.h31::511 :52warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  425   | 511 |     L o g M e s s a gAeBFSaLt_aIlN(TcEoRnNsAtL _cAhTaTrR*I BaUbTsEl__CnAoPnTnUuRlElD _fBiYl(et,h iisn)t) )l i n e )   A B S L _ A T T R I B U T E _ C O L D\;
      
|                                                          ^| 
                              ^
/usr/local/clang/include/absl/container/internal/common.h:31/usr/local/clang/include/absl/base/nullability.h::9241:: 22note: :macro 'ABSL_INTERNAL_IF_true' defined here 
note:    expanded from macro 'absl_nonnull'31
 | /usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2region.cc -o s2/s2region.o
#  d241e | f#idneef iAnBeS La_bIsNlT_EnRoNnAnLu_lIlF __tNrounen(uilfl_
s      a| t                     ^i
sfied, ...) if_satisfied
      |         ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2polyline.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from In file included from ../src/s2/s2polyline.h/usr/local/clang/include/absl/log/internal/check_op.h::3441:
:
In file included from In file included from ../src/s2/s2builder.h/usr/local/clang/include/absl/log/internal/strip.h::3626:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/mutable_s2shape_index.h::42630::
31In file included from :/usr/local/clang/include/absl/container/btree_map.h :warning: 67type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/container/internal/btree_container.h:542:  3426: |   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
ogMess  a542g | e F aAtBaSlL(_cIoNnTsEtR NcAhLa_rX*( ianbsselr_tn_oonrn_ualsls ifginl,e ,i nisnetr tl_ionre_,a
s      s| i                              ^g
n_/usr/local/clang/include/absl/base/nullability.hi:m241p:l22,:  &note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | &, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from   s2/s2region_intersection.cc511: | 17 :
 In file included from  ../src/s2/s2region_intersection.h : 25 :
 In file included from  ../src/s2/base/logging.h : 21A:
BIn file included from S/usr/local/clang/include/absl/log/check.hL:_37I:
NIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_op.h_:A41T:
TIn file included from R/usr/local/clang/include/absl/log/internal/strip.hI:B26U:
TE/usr/local/clang/include/absl/log/internal/log_message.h_:C319A:P20T:U Rwarning: Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]D
_BY(  t319h | i s ) ) )c o n s t   w c h a r _ t *   a b s l _ n u l l a\b
l      e|                                                ^~~~c
onst& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | in/usr/local/clang/include/absl/container/internal/btree_container.hl:i545n:e24 :L owarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]M
ess  a545g | e &   L o g M e s s a g e : : o p e rfaatlosre<)<;(
w      c| h                       ^ar
                     ^_/usr/local/clang/include/absl/container/internal/btree_container.ht:*496 
:a9b:s lnote: _macro 'ABSL_INTERNAL_X' defined heren
ull  a496b | l#ed evf)i n{e
       A| B                                                   ^S
L_I/usr/local/clang/include/absl/base/nullability.hN:T257E:R23N:A Lnote: _expanded from macro 'absl_nullable'X
(F  u257n | c#,d eCfailnlee ea,b sKlQ_unaull,l aMbQluea l_,N uKlVlaalbulee,
       M| V                      ^a
lue, ...)     \
      |         ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 544expanded from macro 'absl_nonnull':
3:   241warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
defi  n544e |   a bAsBlS_In file included from Lns2/s2region_intersection.cc_o:nI17nN:
uTIn file included from lE../src/s2/s2region_intersection.hlR: N_25AN:
LoIn file included from _n../src/s2/base/logging.hXn:(u21il:
nlIn file included from 
s/usr/local/clang/include/absl/log/check.he      :r| 37t                     ^_:
o
In file included from r/usr/local/clang/include/absl/log/internal/check_impl.h_:a21s:
sIn file included from i/usr/local/clang/include/absl/log/internal/check_op.hg:n41,:
 In file included from i/usr/local/clang/include/absl/log/internal/strip.hn:s26e:
r/usr/local/clang/include/absl/log/internal/log_message.ht:_340o:r46_:a swarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
gn_i  m340p | l ,  f&r&i,e ncdo nvsoti d& ,A btsrluFeo,r
m      aIn file included from | ts2/s2r2rect.cc  ^F:
l18u/usr/local/clang/include/absl/container/internal/btree_container.h:
s:In file included from h509../src/s2/s2r2rect.h(::S5224t::
r In file included from note: iexpanded from macro 'ABSL_INTERNAL_X'../src/s2/base/logging.hn
g:i21  f:
509yIn file included from  | S/usr/local/clang/include/absl/log/check.h i :n 37k :
* In file included from   /usr/local/clang/include/absl/log/internal/check_impl.ha :b s21 l:
 _AIn file included from nBo/usr/local/clang/include/absl/log/internal/check_op.hSnLn:_uI41lN:
lTIn file included from  Es/usr/local/clang/include/absl/log/internal/strip.hRiN:nA26kL:
,_
/usr/local/clang/include/absl/log/internal/log_message.hA      T:| T                                             ^446R
:I/usr/local/clang/include/absl/base/nullability.h43B:U:241T :E22_warning: :Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] A
note: Pexpanded from macro 'absl_nonnull'T
U  R  446E241D |  | _ #B dYLeo(fgtiMhnieess )as)ba,s gl e_ Qn ou ni ne u tl ll y  D_ eN ob n un gu lF la 
t       a | l                      ^( 
c o\n
s      t|                                                     ^c
har/usr/local/clang/include/absl/container/internal/common.h*: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l |  #fdielfei,n
e       | A                                          ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_I  F241_ | t#rdueef(iinfe_ saabtsils_fnioendn,u l.l. ._)N oinfn_uslalt
i      s| f                     ^i
ed
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 | In file included from  s2/s2r2rect.cc :A18B:
SIn file included from L../src/s2/s2r2rect.h_:I24N:
TIn file included from E../src/s2/base/logging.hR:N21A:
LIn file included from _/usr/local/clang/include/absl/log/check.hX:(37i:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.he:r21t:
_In file included from o/usr/local/clang/include/absl/log/internal/check_op.hr:_41a:
sIn file included from s/usr/local/clang/include/absl/log/internal/strip.hi:g26n:
,/usr/local/clang/include/absl/log/internal/log_message.h :i454n:s38e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_a  s454s | i g nL_oigmMpels,s a&g&e,Q ucioentslty F&a,t atlr(uceo,n
s      t|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
ha  r545* |   a b s l _ n o n n u l l   f i l e ,f
a      l| s                                     ^e
);/usr/local/clang/include/absl/base/nullability.h
:      241| :                  ~~~~~~22
: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
509:47  :241  | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n509e |   a b s l _ n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBUTE_CAPTURED_BY(this)), In file included from  s2/s2r2rect.cc : 18 :
 In file included from  ../src/s2/s2r2rect.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21\:

In file included from       /usr/local/clang/include/absl/log/internal/check_op.h| :                                              ^~~~41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38/usr/local/clang/include/absl/container/internal/btree_container.h:: 544warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]3
: warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]456
 | /usr/local/clang/include/absl/container/internal/btree_container.h : 511L:o52g:M enote: sexpanded from macro 'ABSL_INTERNAL_X's
ageQ  uietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.hIn file included from :s2/s2region_intersection.cc24::
17In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2region_intersection.h21::
25In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h41::
21In file included from :
/usr/local/clang/include/absl/log/internal/strip.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h26::
41/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 457/usr/local/clang/include/absl/log/internal/strip.h::3826::
 /usr/local/clang/include/absl/log/internal/log_message.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]398
:11:   warning: 457type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
      398  |          v o i d *   a b s l _ n u l l acbolnes tc ocnhsatr&*  va)b;s
l      _| n          ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23f:a inote: lexpanded from macro 'absl_nullable'u
re  _257m | s#gd)e
f      i| n                                     ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241  | _#Nduelflianbel ea
b      s| l                      ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:In file included from 25s2/s2polyline.cc:
:In file included from 18../src/s2/base/logging.h:
:In file included from 21../src/s2/s2polyline.h:
:In file included from 34/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2builder.h:
:In file included from 36/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/strip.h:
:26/usr/local/clang/include/absl/container/internal/btree_container.h:
:547/usr/local/clang/include/absl/log/internal/log_message.h::23425:: 31:warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  547 |     425  |      L o g M e s s a g e F a ttarlu(ec)o;n
s      t|                        ^c
ha/usr/local/clang/include/absl/container/internal/btree_container.hr:*496 :a9b:s lnote: _macro 'ABSL_INTERNAL_X' defined heren
onn  u496l | l# dfeiflien,e  iAnBtS Ll_iInNeT)E RANBASLL__XA(TFTuRnIcB,U TCEa_lClOeLeD,; 
K      Q| u                              ^a
l, /usr/local/clang/include/absl/base/nullability.hM:Q241u:a22l:,  note: Kexpanded from macro 'absl_nonnull'V
al  u241e | ,# dMeVfailnuee ,a b.s.l._)n o n n  u\l
l       | _        ^N
onnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnul/usr/local/clang/include/absl/container/internal/btree_container.hl: 546f:i3l:e ,warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
nt l  i546n | e , 
A      B| S                              ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'X
(i  n241s | e#rdte_foirn_ea sasbisgln_,n oinnnsuelrlt __oNro_nansuslilg
n      _| i                     ^m
pl, &&, conIn file included from ss2/s2region_intersection.cct: 17&:
,In file included from  ../src/s2/s2region_intersection.ht:r25u:
eIn file included from ,../src/s2/base/logging.h
:      21| :
  ^In file included from 
/usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 509/usr/local/clang/include/absl/log/internal/check_impl.h::5221::
 In file included from /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'ABSL_INTERNAL_X'41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26  :
509 | /usr/local/clang/include/absl/log/internal/log_message.h : 427 : 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 ABS  L427_ | I N T E R N A L _ A T T R I B U T E _cCoAnPsTtU RcEhDa_rB*Y (atbhsils_)n)o,n n u l l   f a i l u r e _ m s g )   A B S L _ A\T
T      R| I                                                   ^B
UT/usr/local/clang/include/absl/container/internal/common.hE:_31C:O9L:D ;note: 
macro 'ABSL_INTERNAL_IF_true' defined here      
|                               ^
   31/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bIsFl__tnrounen(uilfl_ s_aNtoinsnfuileld
,       | .                     ^.
.) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSIn file included from Ls2/s2region_intersection.cc_:I17N:
TIn file included from E../src/s2/s2region_intersection.hR:N25A:
LIn file included from _../src/s2/base/logging.hX:(21i:
nIn file included from s/usr/local/clang/include/absl/log/check.he:r37t:
_In file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:_21a:
sIn file included from s/usr/local/clang/include/absl/log/internal/check_op.hi:g41n:
,In file included from  /usr/local/clang/include/absl/log/internal/strip.hi:n26s:
e/usr/local/clang/include/absl/log/internal/log_message.hr:t436_:o36r:_ awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ign  _436i | m p lL,o g&M&e,s scaognesDte b&u,g Ftartuael,(
c      o| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
t   c547h | a r *   a b s l _ n o n n u l l   f itlreu,e
)      ;| 
                                   ^      
|                   ~~~~~
/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/container/internal/btree_container.h22::509 :47note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'ABSL_INTERNAL_X'  
241 | #d  e509f | i n e   a b s l _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lA
T      T| R                     ^I
BUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3:In file included from  s2/s2region_intersection.cc:warning: 17passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2region_intersection.h/usr/local/clang/include/absl/container/internal/btree_container.h::25511:
:In file included from 52../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :51121 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
A/usr/local/clang/include/absl/log/internal/log_message.hB:S446L:_43I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL  _446A | T T RLIoBgUMTeEs_sCaAgPeTQUuRiEeDt_lByYD(etbhuigsF)a)t)a l ( c o n s t   c h a r *   a b s l _ n o n n u\l
l       | f                                                   ^i
le/usr/local/clang/include/absl/container/internal/common.h,:
31      :| 9                                          ^:
 note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_true' defined here:
241:22:    31 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_ltlr u_eN(oinfn_uslalt
i      s| f                     ^i
ed, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  In file included from 546s2/s2region_intersection.cc | : 17 :
AIn file included from B../src/s2/s2region_intersection.hS:L25_:
IIn file included from N../src/s2/base/logging.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37X:
(In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:s21e:
rIn file included from t/usr/local/clang/include/absl/log/internal/check_op.h_:o41r:
_In file included from a/usr/local/clang/include/absl/log/internal/strip.hs:s26i:
g/usr/local/clang/include/absl/log/internal/log_message.hn:,454 :i38n:s ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
_or  _454a | s s iLgong_Miemspsla,g e&Q&u,i ectolnysFta t&a,l (tcrounes,t
       c| h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
r*   547a | b s l _ n o n n u l l   f i l e , 
       t| r                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.hIn file included from :s2/s2region_intersection.cc24::
17In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2region_intersection.h21::
25In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 181/usr/local/clang/include/absl/log/internal/check_impl.h::2521::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]180
:42:   warning: 181type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      c180o | nAsBtS La_bAsTlT:R:ISBtUaTtEu_sP*U RaEb_sFlU_NnCoTnInOuNl lc osntsatt ucsh,a rc*o nasbts lc_hnaorn*n ualbls lM_ankoenCnhuelclk FparielfSitxr)i;n
g      (| 
                        ^      
|                                          ^/usr/local/clang/include/absl/base/nullability.h
:241:22/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:In file included from 24s2/s2region_intersection.cc:
:In file included from 17../src/s2/base/logging.h:
:In file included from 21../src/s2/s2region_intersection.h:
:In file included from 25/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/check.h:
:/usr/local/clang/include/absl/log/internal/check_op.h37::
181In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h58::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
181:25:   warning: 181type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      181c | o n s t  caobnsslt: :aSbtsalt:u:sS*t aatbussl*_ naobnsnlu_lnlo nsntuatluls ,s utecao)tn;su
ts       ,c|  h                  ~~~~~ca
orn*s ta/usr/local/clang/include/absl/container/internal/btree_container.h b:cs511hl:a_47rn:*o  note: nanexpanded from macro 'ABSL_INTERNAL_X'bu
slll_   np511or | en fni xu )l; l 
  p       r e|  f                                                         ^ iA
xB)/usr/local/clang/include/absl/base/nullability.hS;:L
_241      I:| N22                        ^T:
E R/usr/local/clang/include/absl/base/nullability.hnote: Nexpanded from macro 'absl_nonnull':A
241L:  _22241A:T |  #Tnote: dRexpanded from macro 'absl_nonnull'eI
fBi  nUe241T  | Ea#_bdsCelA_PnfTioUnnRneEu lDla_ bB_sNYoln(_ntnhuoinlsn)lu)
l)      l  |  _                      ^N o
 n n u l l 
        |                       ^ 
          \In file included from 
s2/s2region_intersection.cc      :| 17                                              ^~~~:
In file included from 
In file included from s2/s2r2rect.cc../src/s2/s2region_intersection.h::1825:
:
In file included from In file included from ../src/s2/s2r2rect.h../src/s2/base/logging.h::2421:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_impl.h::3721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_impl.h::18121::
58/usr/local/clang/include/absl/log/internal/check_op.h:: 189warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]181
 |       189c | oinnslti naeb sclo:n:sStt aatbussl*: :aSbtsalt_unso*n naublsll _sntoantnuusl,l  cAosnSstta tcuhsa(rc*o nasbts la_bnsoln:n:uSltla t/usr/local/clang/include/absl/container/internal/btree_container.hpu:rs550&e :fs24)i: x{ )
warning: ;      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
| 
                                 ^| 
                                                           ^550
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e ffianles ea)b;s
l      _| n                       ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l496l: 9_:N onote: nmacro 'ABSL_INTERNAL_X' defined heren
ull  
496       | | #                     ^d
efine ABSL_INTERNAL_X(Func,In file included from  s2/s2region_intersection.ccC:a17l:
lIn file included from e../src/s2/s2region_intersection.he:,25:
 In file included from K../src/s2/base/logging.hQ:u21a:
lIn file included from ,/usr/local/clang/include/absl/log/check.h :M37Q:
uIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hl:,21 :
K/usr/local/clang/include/absl/log/internal/check_op.hV:a189l:u28e:,  warning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]V
alue  ,189  | .i.n.l)i n e   c o\n
s      t|          ^a
bsl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2region_intersection.h::54925::
3In file included from :../src/s2/base/logging.h :21warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h549: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.hA:B193S:L21_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL  _193X | (cionnssetr ta_bosrl_:a:sSstiagtnu,s *i nasbesrlt__noorn_nauslsli gAns_Sitmaptlu,s (&c&o,n s&t& ,a bfsall:s:eS,t
a      t| u  ^s
Or/usr/local/clang/include/absl/container/internal/btree_container.h<:T509>:&52 :s )note:  expanded from macro 'ABSL_INTERNAL_X'{

      |                     ^  
509 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bAsTlT_RnIoBnUnTuEl_lC A_PNToUnRnEuDl_lB
Y      (| t                     ^h
is)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #deIn file included from fs2/s2region_intersection.cci:n17e:
 In file included from A../src/s2/s2region_intersection.hB:S25L:
_In file included from I../src/s2/base/logging.hN:T21E:
RIn file included from N/usr/local/clang/include/absl/log/check.hA:L37_:
IIn file included from F/usr/local/clang/include/absl/log/internal/check_impl.h_:f21a:
l/usr/local/clang/include/absl/log/internal/check_op.hs:e202(:i46f:_ swarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
isfi  e202d | ,   .e.x.p)l i_c_iVtA _CAhReGcSk_O_p
M      e| s        ^s
ageBuilder(cIn file included from os2/s2polyline.ccn:s18t:
 In file included from c../src/s2/s2polyline.hh:a34r:
*In file included from  ../src/s2/s2builder.ha:b36s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:o30n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l67 :
e/usr/local/clang/include/absl/container/internal/btree_container.hx:p549r:t3e:x twarning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted];

      |                                              ^  
549 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(fiinnsee ratb_solr__naosnsniuglnl,  _iNnosnenrutl_lo
r      _| a                     ^s
sign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |          In file included from  s2/s2region_intersection.ccA:B17S:
LIn file included from _../src/s2/s2region_intersection.hI:N25T:
EIn file included from R../src/s2/base/logging.hN:A21L:
_In file included from A/usr/local/clang/include/absl/log/check.hT:T37R:
IIn file included from B/usr/local/clang/include/absl/log/internal/check_impl.hU:T21E:
_/usr/local/clang/include/absl/log/internal/check_op.hC:A209P:T15U:R Ewarning: Dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
BY(  t209h | i s )c)o)n s t   c h a r *   a b s l _ n o n n u l l   N e\w
S      t| r                                                   ^i
ng/usr/local/clang/include/absl/container/internal/common.h(:)32;:
9      :|                ^note: 
macro 'ABSL_INTERNAL_IF_false' defined here
/usr/local/clang/include/absl/base/nullability.h:241   :3222 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | A#BdSeLf_iInNeT EaRbNsAlL__nIoFn_nfuallls e_(Niofn_nsualtli
s      f| i                     ^e
d, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &In file included from &s2/s2region_intersection.cc,: 17&:
&In file included from ,../src/s2/s2region_intersection.h :f25a:
lIn file included from s../src/s2/base/logging.he:,21 :
tIn file included from r/usr/local/clang/include/absl/log/check.hu:e37):
;In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                                                              ^:

/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/container/internal/btree_container.h226::49659::9 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                    
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(stIn file included from d::s2/s2region_coverer.cco:s18t:
reIn file included from a../src/s2/s2region_coverer.hm:&31,:

In file included from       ../src/s2/s2cell.h| :            ^24
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21257:
:In file included from 23/usr/local/clang/include/absl/log/check.h:: 37note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
257In file included from  | /usr/local/clang/include/absl/log/internal/check_op.h#:d40e:
fIn file included from i/usr/local/clang/include/absl/log/internal/nullstream.hn:e37 :
ab/usr/local/clang/include/absl/strings/string_view.hs:l53_:n54u:l lwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
le _Nullabl   e53
 |       c| o                      ^n
stexpr striIn file included from ns2/s2region_intersection.ccg:_17v:
iIn file included from e../src/s2/s2region_intersection.hw: 25N:
uIn file included from ../src/s2/base/logging.hl:l21:
SIn file included from a/usr/local/clang/include/absl/log/check.hf:e37S:
tIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hi:n21g:
V/usr/local/clang/include/absl/log/internal/check_op.hi:e277w:(50c:o nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
t c  h277a | r *   a b s l _ n u l l a b l e   p )   { 
        |                                                       ^ 
       /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :c onote: nexpanded from macro 'absl_nullable's
t v  o257i | d#*d eafbisnle_ naublslla_bnluel lvaablluee )_;N
u      l| l                                                 ^a
bl/usr/local/clang/include/absl/base/nullability.he:
257      :| 23                      ^:
 note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:27:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.hIn file included from :s2/s2region_intersection.cc89::
17In file included from :
/usr/local/clang/include/absl/numeric/int128.hIn file included from :../src/s2/s2region_intersection.h41::
25:
/usr/local/clang/include/absl/types/compare.hIn file included from :../src/s2/base/logging.h78::2122:
:In file included from  /usr/local/clang/include/absl/log/check.h:warning: 37'enable_if' is a clang extension [-Wgcc-compat]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
   /usr/local/clang/include/absl/log/internal/check_op.h78: | 292 : 13 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
_att  r292i | bcuotnes_t_ (c(heanra*b laeb_silf_(nno n=n=u l0l,  o"pOenrlayt olri<t<e(rsatld :`:0b`a siisc _aolsltorweeadm.<"c)h)a)r ,{ }T
r      a| i                     ^t
s>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull     \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67/usr/local/clang/include/absl/base/nullability.h:
/usr/local/clang/include/absl/container/internal/btree_container.h::551241::322::  warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]note: 
expanded from macro 'absl_nonnull'
  551   | 241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oXn(niunlsle r_tN_oonrn_ualsls
i      g| n                     ^,
 insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           In file included from As2/s2r2rect.ccB:S18L:
_In file included from I../src/s2/s2r2rect.hN:T24E:
RIn file included from N../src/s2/base/logging.hA:L21_:
AIn file included from T/usr/local/clang/include/absl/log/check.hT:R37I:
BIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hT:E21_:
C/usr/local/clang/include/absl/log/internal/check_op.hA:P193T:U21R:E Dwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
Y(th  i193s | )c)o)n s t  a bsl::S t a t u s *   a b s l _ n o n n u l l  \A
s      S| t                                              ^~~~a
tus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
_Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2r2rect.cc296: | 18 :
 In file included from  ../src/s2/s2r2rect.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 226 : 59 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       226  |  v o i d   McaoknesCth escikgOnpeVda lcuheaSrt*r ianbgs(ls_tndo:n:nousltlr)e;a
m      &|                                                                ^o
s, /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  vnote: oexpanded from macro 'absl_nonnull'i
d*   241a | b#sdle_fniunlel aabblsel _pn)o;n
n      u| l                                                          ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
      note: | expanded from macro 'absl_nullable'                     ^

  257 | #define absl_nullable _NullIn file included from as2/s2region_intersection.ccb:l17e:

In file included from       ../src/s2/s2region_intersection.h| :                      ^25
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |         In file included from  s2/s2r2rect.cc : 18 :
 In file included from  ../src/s2/s2r2rect.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 276 : 13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false)        const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
;
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2polyline.cc::27818::
13In file included from :../src/s2/s2polyline.h :34warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:  30278:
 | In file included from c/usr/local/clang/include/absl/container/btree_map.ho:n67s:
t/usr/local/clang/include/absl/container/internal/btree_container.h :v553o:i78d:*  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l553l | a b lAeB SoLp_eIrNaTtEoRrN<A<L(_sXt(di:n:soesrttr_eoarm_&a,s ssitgdn:,: niunlsleprttr__otr)_;a
s      s| i            ^g
n_im/usr/local/clang/include/absl/base/nullability.hp:l257,: 23&:& ,note:  expanded from macro 'absl_nullable'&
&,   257t | r#udee,f itnreu ea)b;s
l      _| n                                                                             ^u
ll/usr/local/clang/include/absl/container/internal/btree_container.ha:b496l:e9 :_ Nnote: umacro 'ABSL_INTERNAL_X' defined herel
lab  l496e | 
#      d| e                      ^f
ine ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char/usr/local/clang/include/absl/container/internal/btree_container.h,: 553T:r3a:i twarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]>
&,
        | 553            ^ | 
  A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | X#(dienfsienret _aobrs_la_snsoingnnu,l li n_sNeorntn_uolrl_
a      s| s                     ^i
gn_impl, &&, &&, In file included from ts2/s2r2rect.ccr:u18e:
,In file included from  ../src/s2/s2r2rect.ht:r24u:
eIn file included from )../src/s2/base/logging.h;:
21      :
| In file included from   ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h509::2152:
:/usr/local/clang/include/absl/log/internal/check_op.h :note: 293expanded from macro 'ABSL_INTERNAL_X':
49:   warning: 509type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      293  |           A B S L _ I N T E R N A L _ A T T R I B U T E _ C A P T U R E Dc_oBnYs(tt hcihsa)r)*,  a b s l _ n o n n u l l ) ; 
        |                                                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 :\22
:       | note:                                                    ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/common.h  :24131 | :#9d:e fnote: imacro 'ABSL_INTERNAL_IF_true' defined heren
e a   b31s | l#_dneofninnuel lA B_SNLo_nInNuTlElR
N      A| L                     ^_
IF_true(if_satisfied, ...In file included from )s2/s2r2rect.cc :i18f:
_In file included from s../src/s2/s2r2rect.ha:t24i:
sIn file included from f../src/s2/base/logging.hi:e21d:

In file included from       /usr/local/clang/include/absl/log/check.h| :        ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | In file included from cs2/s2polyline.cco:nst 18s:
iIn file included from g../src/s2/s2polyline.hn:e34d:
 In file included from c../src/s2/s2builder.hh:a36r:
*In file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
nulIn file included from ls2/s2region_intersection.cc :o17p:
eIn file included from r../src/s2/s2region_intersection.ha:t25o:
rIn file included from <../src/s2/base/logging.h<:(21s:
tIn file included from d/usr/local/clang/include/absl/log/check.h:::37b:
aIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hi:c21_:
os/usr/local/clang/include/absl/log/internal/check_op.ht:r429e:a31m:< cwarning: htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
r, Tr  a429i | t s > & ,T
1       | v                   ^1
, T2/usr/local/clang/include/absl/base/nullability.h :v2412:,22 :c onote: nexpanded from macro 'absl_nonnull's
t c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo nenxuplrlt e_xNto)n nAuBlSlL
_      A| T                     ^T
RIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2r2rect.cc :note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2r2rect.h:  24241:
 | In file included from #../src/s2/base/logging.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/check.he: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n296u:l63l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul  l296
 |        |                       ^ 
                                        const signed cIn file included from hs2/s2region_intersection.cca:r17*:
 In file included from a../src/s2/s2region_intersection.hb:s25l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:)37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                                              ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::432241::1322::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

    241432 |  | #cdoenfsitn ec haabrs*l _anbosnln_unloln n_uNloln nMualkle
C      h| e                     ^c
kOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2r2rect.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2r2rect.h | :#24d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l298 :_22N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
      |                        ^298
 | const unsIn file included from is2/s2region_intersection.ccg:n17e:
dIn file included from  ../src/s2/s2region_intersection.hc:h25a:
rIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 /usr/local/clang/include/absl/log/internal/check_op.ho:p433e:r56a:t owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]<
<(s  t433d | : :basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
                                                const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STIn file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h|                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern temRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(plate const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOGIn file included from _s2/s2region_intersection.ccI:N17T:
EIn file included from R../src/s2/s2region_intersection.hN:A25L:
_In file included from D../src/s2/base/logging.hE:F21I:
NIn file included from E/usr/local/clang/include/absl/log/check.h_:M37A:
KIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.h_:C21H:
EC/usr/local/clang/include/absl/log/internal/check_op.hK:_458O:P1_:S Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NG_EX  T458E | RANB(SfLl_oLaOtG)_;I
N      T| E^R
NA/usr/local/clang/include/absl/log/internal/check_op.hL:_449D:E31F:I Nnote: Eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
MAK  E449_ | C H EeCxKt_eOrPn_ StTeRmIpNlGa_tEeX TcEoRnNs(tc ocnhsatr *s tadb:s:ls_tnroinnngu&l)l; 
M      a| k^e
Che/usr/local/clang/include/absl/log/internal/check_op.hc:k449O:p31S:t rnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
g(     449\ | 
        | e                              ^x
te/usr/local/clang/include/absl/base/nullability.hr:n241 :t22e:m pnote: lexpanded from macro 'absl_nonnull'a
te   241c | o#ndsetf icnhea ra*b salb_snlo_nnnounlnlu l_lN oMnankuelClh
e      c| k                     ^O
pStrinIn file included from gs2/s2r2rect.cc(: 18 :
 In file included from \../src/s2/s2r2rect.h
:      24| :
                              ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
454:1  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
e/usr/local/clang/include/absl/log/internal/check_op.hf:i450n:e25 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
_n  o450n | n u l l   _ Nxo,n nxu,l lc
o      n| s                     ^t
 char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2region_intersection.cc::2217::
 In file included from ../src/s2/s2region_intersection.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n458o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_N/usr/local/clang/include/absl/log/internal/check_op.ho:n450n:u25l:l 
      note: | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'                     ^

  450 |       x, x, const char*In file included from  s2/s2r2rect.cca:b18s:
lIn file included from _../src/s2/s2r2rect.hn:o24n:
nIn file included from u../src/s2/base/logging.hl:l21):

In file included from       /usr/local/clang/include/absl/log/check.h| :                        ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:22/usr/local/clang/include/absl/log/internal/check_op.h:: 455:note: 1expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f455i | nAeB SaLb_sLlO_Gn_oInNnTuElRlN A_LN_oDnEnFuIlNlE
_      M| A                     ^K
E_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 449s2/s2region_intersection.cc::3117::
 In file included from ../src/s2/s2region_intersection.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'25
:
In file included from ../src/s2/base/logging.h:  21449:
 | In file included from  /usr/local/clang/include/absl/log/check.h :e37x:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:n21 :
t/usr/local/clang/include/absl/log/internal/check_op.he:m459p:l1a:t ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst   459c | hAaBrS*L _aLbOsGl__InNoTnEnRuNlAlL _MDaEkFeICNhEe_cMkAOKpES_tCrHiEnCgK(_ O P _\S
T      R| I                              ^N
G_/usr/local/clang/include/absl/base/nullability.hE:X241T:E22R:N (note: cexpanded from macro 'absl_nonnull'o
ns  t241  | a#bdself:i:nset raibnsgl__vnioenwn&u)l;l
       _| N^o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l449l:
31      :|                       ^note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 | In file included from  s2/s2r2rect.cc :e18x:
tIn file included from e../src/s2/s2r2rect.hr:n24 :
tIn file included from e../src/s2/base/logging.hm:p21l:
aIn file included from t/usr/local/clang/include/absl/log/check.he: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
c/usr/local/clang/include/absl/log/internal/check_op.hh:a455r:*1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_/usr/local/clang/include/absl/log/internal/check_op.hn:o450n:n25u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'M
ak  e450C | h e c k O p Sxt,r ixn,g (c o n s\t
       c| h                              ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | )#
d      e| f                        ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2r2rect.cc::45918::
1In file included from :../src/s2/s2r2rect.h :24warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:/usr/local/clang/include/absl/log/internal/check_op.h21::
450In file included from :/usr/local/clang/include/absl/log/check.h25::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
21:
/usr/local/clang/include/absl/log/internal/check_op.h  :450456 | : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
x,   x456, |  AcBoSnLs_tL OcGh_aIrN*T EaRbNsAlL__nDoEnFnIuNlEl_)M
A      K| E                        ^_
CH/usr/local/clang/include/absl/base/nullability.hE:C241K:_22O:P _note: Sexpanded from macro 'absl_nonnull'T
RI  N241G | _#EdXeTfEiRnNe( cahbasrl)_;n
o      n| n^u
ll/usr/local/clang/include/absl/log/internal/check_op.h :_449N:o31n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l

      |                      ^  
449 |   extern template const char*In file included from  s2/s2region_intersection.cca:b17s:
lIn file included from _../src/s2/s2region_intersection.hn:o25:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from M/usr/local/clang/include/absl/log/check.ha:k37e:
CIn file included from h/usr/local/clang/include/absl/log/internal/check_impl.he:c21k:
O/usr/local/clang/include/absl/log/internal/check_op.hp:S460t:r1i:n gwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \
        460|  |                               ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241L:O22G:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dDeEfFiInNeE _aMbAsKlE__nCoHnEnCuKl_lO P__NSoTnRnIuNlGl_
E      X| T                     ^E
RN(conIn file included from ss2/s2r2rect.cct: 18c:
hIn file included from a../src/s2/s2r2rect.hr:*24 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h):;21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :^456
:1:/usr/local/clang/include/absl/log/internal/check_op.h :449warning: :31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'450
:25:   note: 449expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
    e450x | t e r n   t exm,p lxa,t ec ocnosnts tc hcahra*r *a basbls_ln_onnonnunlull)l
       M| a                        ^k
eC/usr/local/clang/include/absl/base/nullability.hh:e241c:k22O:p Snote: texpanded from macro 'absl_nonnull'r
in  g241( |  # d e\f
i      n| e                              ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2r2rect.ccs2/s2region_intersection.cc::1817:
:
In file included from In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/s2region_intersection.h:25:
In file included from i../src/s2/base/logging.h:21:
nIn file included from s/usr/local/clang/include/absl/log/check.he:r37t:
_In file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:_21a:
s/usr/local/clang/include/absl/log/internal/check_op.hs:i460g:n66,:  iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ert_o  r460_ | aAsBsSiLg_nL_OhGi_nItN_TiEmRpNlA,L _cDoEnFsItN E&_,M
A      K| E  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
CHECK  _565O | P _ S T R I N G _ E X T E R N ( c o ncsotn scth a&r,*  tarbusel,_ ntornuneu,l
l      )| ;                  ~~~~~~~~~~~~~~~~~~~~

        | 566 |                                                                  ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
      241c | o#ndsetf_iintee raabtsolr_(nhoinnntul)l  A_BNSoL_InNnTuElRlN
A      L| _                     ^C
OMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2region_intersection.cc::51117::
47In file included from :../src/s2/s2region_intersection.h :25note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:  37511:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 460 : 66 :A Bwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'A
TT  R241I | B#UdTeEf_iCnAeP TaUbRsElD__nBoYn(ntuhlils )_)N)o n n u l l 
        |                       ^ 
      In file included from  s2/s2region_intersection.cc : 17 :
 In file included from  ../src/s2/s2region_intersection.h : 25\:

In file included from       ../src/s2/base/logging.h| :                                              ^~~~21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_In file included from Es2/s2polyline.ccX:T18E:
RIn file included from N../src/s2/s2polyline.h(:
34      :
| In file included from ^../src/s2/s2builder.h
:36:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/mutable_s2shape_index.h::44930::
31In file included from :/usr/local/clang/include/absl/container/btree_map.h :67note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/container/internal/btree_container.h
:570:3:   449 | warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
exte  r570n |   t eAmBpSlLa_tIeN TcEoRnNsAtL _cXh(airn*s earbts_lo_rn_oansnsuilgln ,M aiknesCehretc_koOrp_Satsrsiinggn(_ h i n\t
_      i| m                              ^p
l, /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  &note: ,expanded from macro 'absl_nonnull' 
&&  ,241
 |       #| d  ^e
fi/usr/local/clang/include/absl/container/internal/btree_container.hn:e509 :a52b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onn  u509l | l   _ N o n n u l l 
A      B| S                     ^L
_INTERNALIn file included from _s2/s2region_intersection.ccA:T17T:
RIn file included from I../src/s2/s2region_intersection.hB:U25T:
EIn file included from _../src/s2/base/logging.hC:A21P:
TIn file included from U/usr/local/clang/include/absl/log/check.hR:E37D:
_In file included from B/usr/local/clang/include/absl/log/internal/check_impl.hY:(21t:
h/usr/local/clang/include/absl/log/internal/check_op.hi:s462):)24,:   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      462  |          c onst signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2r2rect.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2r2rect.h241: | 24#:
dIn file included from e../src/s2/base/logging.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l460l: 1_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
        | 460                     ^ | 
ABSL_LOG_INIn file included from Ts2/s2region_intersection.ccE:R17N:
AIn file included from L../src/s2/s2region_intersection.h_:D25E:
FIn file included from I../src/s2/base/logging.hN:E21_:
MIn file included from A/usr/local/clang/include/absl/log/check.hK:E37_:
CIn file included from H/usr/local/clang/include/absl/log/internal/check_impl.hE:C21K:
_/usr/local/clang/include/absl/log/internal/check_op.hO:P462_:S24T:R Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G
_E/usr/local/clang/include/absl/base/nullability.hX:T241E:R22N:( cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsoln_nnuolnln)u;l
l       _| N^o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l449l:
31      :|                       ^
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |  In file included from  s2/s2region_intersection.cce:x17t:
eIn file included from r../src/s2/s2region_intersection.hn: 25t:
eIn file included from m../src/s2/base/logging.hp:l21a:
tIn file included from e/usr/local/clang/include/absl/log/check.h :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht: 21c:
h/usr/local/clang/include/absl/log/internal/check_op.ha:r461*: 1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n461u | lAlB SMLa_kLeOCGh_eIcNkTOEpRSNtArLi_nDgE(F I N E\_
M      A| K                              ^E
_CH/usr/local/clang/include/absl/base/nullability.hE:C241K:_22O:P _note: Sexpanded from macro 'absl_nonnull'T
RI  N241G | _#EdXeTfEiRnNe( 
a      b| s^l
_n/usr/local/clang/include/absl/log/internal/check_op.ho:n450n:u25l:l  note: _expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'N
on  n450u | l l 
        |                       ^ 
x, x, In file included from cs2/s2r2rect.cco:n18s:
tIn file included from  ../src/s2/s2r2rect.hc:h24a:
rIn file included from *../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
)/usr/local/clang/include/absl/log/internal/check_op.h
:      460| :                        ^66
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 460expanded from macro 'absl_nonnull' | 
AB  S241L | _#LdOeGf_iInNeT EaRbNsAlL__nDoEnFnIuNlEl_ M_ANKoEn_nCuHlElC
K      _| O                     ^P
_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2region_intersection.cc:: 17:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2region_intersection.h
:25:
  In file included from 241../src/s2/base/logging.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/log/check.hi:n37e:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o463n:n1u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non  n463u | lAlB
S      L| _                     ^L
OG_INTERIn file included from Ns2/s2r2rect.ccA:L18_:
DIn file included from E../src/s2/s2r2rect.hF:I24N:
EIn file included from _../src/s2/base/logging.hM:A21K:
EIn file included from _/usr/local/clang/include/absl/log/check.hC:H37E:
CIn file included from K/usr/local/clang/include/absl/log/internal/check_impl.h_:O21P:
_/usr/local/clang/include/absl/log/internal/check_op.hS:T460R:I66N:G _warning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]X
TE/usr/local/clang/include/absl/base/nullability.hR:N241(:
22      :|  ^
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:449:  31241: |  #note: dexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
fin  e449  | a b selx_tneornnn utlelm p_lNaotnen ucloln
s      t|                       ^c
har*In file included from  s2/s2r2rect.cca:b18s:
lIn file included from _../src/s2/s2r2rect.hn:o24n:
nIn file included from u../src/s2/base/logging.hl:l21 :
MIn file included from a/usr/local/clang/include/absl/log/check.hk:e37C:
hIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hc:k21O:
p/usr/local/clang/include/absl/log/internal/check_op.hS:t460r:i1n:g (      \ 
        |                                ^ 
 \/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                   ^22
: note: /usr/local/clang/include/absl/container/internal/common.hexpanded from macro 'absl_nonnull':
32:9  :241  | note: #macro 'ABSL_INTERNAL_IF_false' defined hered
efi   n32e |  #adbesfli_nneo nAnBuSlLl_ I_NNToEnRnNuAlLl_
I      F| _                     ^f
alse(In file included from is2/s2region_intersection.ccf:_17s:
aIn file included from t../src/s2/s2region_intersection.hi:s25f:
iIn file included from e../src/s2/base/logging.hd:,21 :
.In file included from ./usr/local/clang/include/absl/log/check.h.:)37 :
_In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hV:A21_:
A/usr/local/clang/include/absl/log/internal/check_op.hR:G464S:_26_:
       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  464 |     consIn file included from ts2/s2polyline.cc :u18n:
sIn file included from i../src/s2/s2polyline.hg:n34e:
dIn file included from  ../src/s2/s2builder.hc:h36a:
rIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u570l:l3):; 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                         ^

/usr/local/clang/include/absl/base/nullability.h:  241570: | 22 :  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eX (aibnssle_rnto_nonru_lals s_iNgonn,n uilnls
e      r| t                     ^_
or_assiIn file included from gs2/s2region_intersection.ccn:_17h:
iIn file included from n../src/s2/s2region_intersection.ht:_25i:
mIn file included from p../src/s2/base/logging.hl:,21 :
cIn file included from o/usr/local/clang/include/absl/log/check.hn:s37t:
 In file included from &/usr/local/clang/include/absl/log/internal/check_impl.h,: 21&:
&/usr/local/clang/include/absl/log/internal/check_op.h,:
464      :| 26  ^:
 warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
511:/usr/local/clang/include/absl/base/nullability.h52::241 :22note: :expanded from macro 'ABSL_INTERNAL_X' 
note: expanded from macro 'absl_nonnull'
  511   | 241  | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
   In file included from  s2/s2region_intersection.cc : 17 :
 In file included from  ../src/s2/s2region_intersection.hA:B25S:
LIn file included from _../src/s2/base/logging.hI:N21T:
EIn file included from R/usr/local/clang/include/absl/log/check.hN:A37L:
_In file included from A/usr/local/clang/include/absl/log/internal/check_impl.hT:T21R:
I/usr/local/clang/include/absl/log/internal/check_op.hB:U465T:E1_:C Awarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
URED  _465B | YA(BtShLi_sL)O)G)_ I N T E R N A L _ D E F I N E _ M A K E _ C H E\C
K      _| O                                                   ^P
_STRI/usr/local/clang/include/absl/container/internal/common.hN:G31_:E9X:T Enote: Rmacro 'ABSL_INTERNAL_IF_true' defined hereN
(con   s31t |  #vdoeifdi*n ea bAsBlS_Ln_oInNnTuElRlN)A;L
_      I| F^_
tr/usr/local/clang/include/absl/log/internal/check_op.hu:e449(:i31f:_ snote: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't
isf  i449e | d ,  e.x.t.e)r ni ft_esmaptliastfei ecdo
n      s| t        ^ 
char* absl_nonnull MakeCheckOpStrIn file included from is2/s2polyline.ccn:g18(:
 In file included from  ../src/s2/s2polyline.h :\34
:
      In file included from | ../src/s2/s2builder.h                              ^:
36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h::24130::
22In file included from :/usr/local/clang/include/absl/container/btree_map.h :67note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.h
:570:  3241: |  #warning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
fine a  b570s | l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lXl(
i      n| s                     ^e
rt_or_In file included from as2/s2region_intersection.ccs:s17i:
gIn file included from n../src/s2/s2region_intersection.h,: 25i:
nIn file included from s../src/s2/base/logging.he:r21t:
_In file included from o/usr/local/clang/include/absl/log/check.hr:_37a:
sIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hi:g21n:
_/usr/local/clang/include/absl/log/internal/check_op.hh:i465n:t66_:i mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, c  o465n | sAtB S&L,_ L&O&G,_
I      N| T  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E
RNA  L571_ | D E F I N E _ M A K E _ C H E C K _ OfPa_lSsTeR,I NtGr_uEeX,T EcRoNn(scto_nistte rvaotiodr*( haibnstl)_ nAoBnSnLu_lIlN)T;E
R      N| A                                                                 ^L
_C/usr/local/clang/include/absl/base/nullability.hO:M241M:A22):; 
note:       expanded from macro 'absl_nonnull'| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  241 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e511f:i47n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n511o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATIn file included from Ts2/s2region_intersection.ccR:I17B:
UIn file included from T../src/s2/s2region_intersection.hE:_25C:
AIn file included from P../src/s2/base/logging.hT:U21R:
EIn file included from D/usr/local/clang/include/absl/log/check.h_:B37Y:
(In file included from t/usr/local/clang/include/absl/log/internal/check_impl.hh:i21s:
)/usr/local/clang/include/absl/log/internal/check_op.h):)465 : 66 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e\f
i      n| e                                              ^~~~ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/base/logging.h572:365:21 warning3:
s:In file included from  generated /usr/local/clang/include/absl/log/check.h.
warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
572 | /usr/local/clang/include/absl/log/internal/check_op.h : 502A:B1S:L _warning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
TER  N502A | LA_BXS(Li_nLsOeGr_tI_NoTrE_RaNsAsLi_gCnH,E CiKn_sOePr_tI_MoPrL_(aCshseicgkn__EhQi,n t=_=i)m
p      l| ,^ 
co/usr/local/clang/include/absl/log/internal/check_op.hn:s488t: 32&:,  note: &expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'&
,
      |     ^488
 |  /usr/local/clang/include/absl/container/internal/btree_container.h :i509n:l52i:n enote:  expanded from macro 'ABSL_INTERNAL_X'c
ons  t509e | x p r   c o n s t   cAhBaSrL*_ IaNbTsElR_NnAuLl_lAaTbTlReI BnUaTmEe_#C#AIPmTpUlR(E D _ B Y ( t h i s ) ) ,              \ 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
 \  
257       | | #                                                   ^d
ef/usr/local/clang/include/absl/container/internal/common.hi:n31e: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_true' defined here_
nul   l31a | b#ldee f_iNnuel lAaBbSlLe_
I      N| T                      ^E
RNAL_IF_true(In file included from is2/s2region_intersection.ccf:_17s:
aIn file included from t../src/s2/s2region_intersection.hi:s25f:
iIn file included from e../src/s2/base/logging.hd:,21 :
.In file included from ./usr/local/clang/include/absl/log/check.h.:)37 :
iIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.h_:s21a:
t/usr/local/clang/include/absl/log/internal/check_op.hi:s502f:i1e:d 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
        ^
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |   In file included from  s2/s2polyline.cc : 18 :
cIn file included from o../src/s2/s2polyline.hn:s34t:
 In file included from T../src/s2/s2builder.h1:&36 :
vIn file included from 1../src/s2/mutable_s2shape_index.h,: 30c:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hs:t67 :
T/usr/local/clang/include/absl/container/internal/btree_container.h2:&572 :v32:,  warning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nst c  h572a | r *  AaBbSsLl__InNoTnEnRuNlAlL _eXx(pirntseexrtt)_ o{r _ a s s i\g
n      ,|                                                ^i
ns/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | _#hdienfti_niem palb,s lc_onnosntn u&l,l  &_&N,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l
      |                        ^573
 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           Awarning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFIn file included from Is2/s2region_intersection.ccN:E17_:
MIn file included from A../src/s2/s2region_intersection.hK:E25_:
CIn file included from H../src/s2/base/logging.hE:C21K:
_In file included from O/usr/local/clang/include/absl/log/check.hP:_37S:
TIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hI:N21G:
_E/usr/local/clang/include/absl/log/internal/check_op.hX:T502E:R1N:( cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
st/usr/local/clang/include/absl/log/internal/check_op.h :c497h:a32r:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_n  o497n | n u liln)l;i
n      e|  ^c
ons/usr/local/clang/include/absl/log/internal/check_op.ht:e450x:p25r:  cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
st   c450h | a r *   a b sxl,_ nxu,l lcaobnlset  ncahmaer#*# Iambpsll(_ n o n n u l l ) 
        |                          ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 :\22
:       | note:                                ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
l      e|                       ^_
Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from s2/s2r2rect.cc:  18498:
 | In file included from  ../src/s2/s2r2rect.h : 24 :
 In file included from  ../src/s2/base/logging.hi:n21t:
 In file included from v/usr/local/clang/include/absl/log/check.h1:,37 :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ht: 21v:
2/usr/local/clang/include/absl/log/internal/check_op.h,: 461c:o1n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har  *461  | aAbBsSlL__nLoOnGn_uIlNlT EeRxNpArLt_eDxEtF)I N{E _ M A K E _ C H E C K _ O P _ S T\R
I      N| G                                  ^_
EX/usr/local/clang/include/absl/base/nullability.hT:E241R:N22(:
       | note: ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/log/internal/check_op.h  :241449 | :#31d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e a  b449s | l _ neoxntneurlnl  t_eNmopnlnautlel 
c      o| n                     ^s
t char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shape_index_buffered_region.cc -o s2/s2shape_index_buffered_region.o
BSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))   In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                     \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURIn file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/container/internal/raw_hash_set.h212: | 2734 : 65u:s iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]g
 poi n2734t | e r   =   T *   a b s l _ n u l l a bTi&l&i tvyal_uuen kAnBoSwLn_;I
N      T| E                     ^R
NAL/usr/local/clang/include/absl/base/nullability.h_:A289T:T34R:I Bnote: Uexpanded from macro 'absl_nullability_unknown'T
E_C  A289P | T#UdReEfDi_nBeY (atbhsils_)n)u
l      l| a                                                                ^~~~b
ility_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define abslIn file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),          In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
_nullability_unknown _Null_unspecified
      |                                  ^
              \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
s2/s2polygon.cc:96:1: warning: '__COUNTER__' is a C2y extension [-Wc2y-extensions]
   96 | S2_DEFINE_bool(
      | ^
../src/s2/base/commandlineflags.h:27:3: note: expanded from macro 'S2_DEFINE_bool'
   27 |   ABSL_FLAG(bool, name, default_value, description)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:170:3: note: expanded from macro 'ABSL_FLAG'
  170 |   ABSL_FLAG_IMPL(Type, name, default_value, help)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:272:3: note: expanded from macro 'ABSL_FLAG_IMPL'
  272 |   ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help)                     \
      |   ^
/usr/local/clang/include/absl/flags/flag.h:250:44: note: expanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'
  250 |   constexpr auto FLAGS_help_storage_##name ABSL_INTERNAL_UNIQUE_SMALL_NAME() \
      |                                            ^
/usr/local/clang/include/absl/base/optimization.h:306:46: note: expanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'
  306 |   asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__In file included from )s2/s2region_intersection.cc):
17      :
| In file included from                                              ^../src/s2/s2region_intersection.h
:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/s2polygon.cc:104:1: warning: '__COUNTER__' is a C2y extension [-Wc2y-extensions]
  104 | S2_DEFINE_int32(
      | ^
../src/s2/base/commandlineflags.h:33:3: note: expanded from macro 'S2_DEFINE_int32'
   33 |   ABSL_FLAG(int32, name, default_value, description)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:170:3: note: expanded from macro 'ABSL_FLAG'
  170 |   ABSL_FLAG_IMPL(Type, name, default_value, help)
      |   ^
/usr/local/clang/include/absl/flags/flag.h:272:3: note: expanded from macro 'ABSL_FLAG_IMPL'
  272 |   ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help)                     \
      |   ^
/usr/local/clang/include/absl/flags/flag.h:250:44: note: expanded from macro 'ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER'
  250 |   constexpr auto FLAGS_help_storage_##name ABSL_INTERNAL_UNIQUE_SMALL_NAME() \
      |                                            ^
/usr/local/clang/include/absl/base/optimization.h:306:46: note: expanded from macro 'ABSL_INTERNAL_UNIQUE_SMALL_NAME'
  306 |   asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__))
      |                                              ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _N/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2region_intersection.cc
:17:
In file included from ../src/s2/s2region_intersection.h:25   :
66In file included from  | ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
  /usr/local/clang/include/absl/log/internal/check_op.h : 511 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      511  |  cionnts_tt ycphea*r *a basbls_ln_onnunlullalb loeu tC)h;e
c      k| s                                        ^t
rcmptrueI/usr/local/clang/include/absl/base/nullability.hm:p241l:(22
:       | note:             ^expanded from macro 'absl_nonnull'

  241/usr/local/clang/include/absl/base/nullability.h | :#257d:e23f:i nnote: eexpanded from macro 'absl_nullable' 
ab  s257l | _#ndoenfniunlel  a_bNsoln_nnuullll
a      b| l                     ^e
 _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2polyline_alignment.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2polyline_alignment.h::51224::
17In file included from :../src/s2/s2polyline.h :warning: 34type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2builder.h:36:
  In file included from 512../src/s2/mutable_s2shape_index.h | : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hc:o66n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h :c70h:
aIn file included from r/usr/local/clang/include/absl/container/internal/layout.h*: 198a:
bIn file included from s/usr/local/clang/include/absl/strings/str_cat.hl:_116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:a23b:
l/usr/local/clang/include/absl/strings/numbers.he: 77s:161,:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st c   h77a | r[*[ naobdsils_cnaurldl]a]b lbeo osl2 ,S
i      m| p                ^l
eA/usr/local/clang/include/absl/base/nullability.ht:o257f:(23a:bsl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_ononnnnuullll
       v| a                     ^l
ue,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2r2rect.cc241: | 18#:
dIn file included from e../src/s2/s2r2rect.hf:i24n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
_N/usr/local/clang/include/absl/log/internal/check_op.ho:n511n:u13l:l 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^

  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* abIn file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      | /usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #definesl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                 ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
 absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
s2/s2polygon.cc:1474:3: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1474 |   S2_CHECK_GE(snap_level, 0);
      |   ^
../src/s2/base/logging.h:41:21: note: expanded from macro 'S2_CHECK_GE'
   41 | #define S2_CHECK_GE CHECK_GE
      |                     ^
/usr/local/clang/include/absl/log/check.h:126:3: note: expanded from macro 'CHECK_GE'
  126 |   ABSL_LOG_INTERNAL_CHECK_GE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:57:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_GE_IMPL'
   57 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_GE, >=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
s2/s2polygon.cc:1474:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:41:21: note: expanded from macro 'S2_CHECK_GE'
   41 | #define S2_CHECK_GE CHECK_GE
      |                     ^
/usr/local/clang/include/absl/log/check.h:126:3: note: expanded from macro 'CHECK_GE'
  126 |   ABSL_LOG_INTERNAL_CHECK_GE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:57:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_GE_IMPL'
   57 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_GE, >=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const charIn file included from *s2/s2projections.cc :a18b:
sIn file included from l../src/s2/s2projections.h_:n28o:
nIn file included from n../src/s2/s2latlng.hu:l32l:
>In file included from (../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h\:
27      :
| In file included from                                                             ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h  :24182 | :
#In file included from d/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:f23i:
nIn file included from e/usr/local/clang/include/absl/crc/crc32c.h :a32b:
sl/usr/local/clang/include/absl/strings/str_format.h_:n115o:n52n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Nonn  u115l | l 
        |                       ^ 
 const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknowIn file included from ns2/s2r2rect.cc):,18
:
      In file included from | ../src/s2/s2r2rect.h                                            ^:
24:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h289::2234:
:In file included from  /usr/local/clang/include/absl/log/log.hnote: :expanded from macro 'absl_nullability_unknown'209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h  :28920 | :
#In file included from d/usr/local/clang/include/absl/log/absl_vlog_is_on.he:f63i:
ne/usr/local/clang/include/absl/log/internal/vlog_config.h :a133b:s37l:_ nuwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abili  t133y | _iunntk nRoewgni s_tNeurlAln_duInnsipteicailfiizeed(
V      L| o                                 ^g
Site* absl_nonnullIn file included from  s2/s2projections.ccv:)18;:

In file included from       ../src/s2/s2projections.h| :                                    ^28
:
In file included from ../src/s2/s2latlng.h:32/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
  In file included from 241../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31_:
N/usr/local/clang/include/absl/synchronization/mutex.ho:n490n:u13l:l 
warning:       type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]| 
                     ^
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_In file included from ns2/s2r2rect.ccu:l18l:
aIn file included from b../src/s2/s2r2rect.hi:l24i:
tIn file included from y../src/s2/base/logging.h_:u22n:
kIn file included from n/usr/local/clang/include/absl/log/log.ho:w209n:
 In file included from _/usr/local/clang/include/absl/log/internal/log_impl.hN:u20l:
lIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hu:n63s:
p/usr/local/clang/include/absl/log/internal/vlog_config.he:c157i:f11i:e dwarning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                  ^
  157 | VLogSite* absl_nIn file included from us2/s2projections.ccl:l18a:
bIn file included from l../src/s2/s2projections.he: 28S:
eIn file included from t../src/s2/s2latlng.hV:M32o:
dIn file included from u../src/s2/s1angle.hl:e28L:
iIn file included from s../src/s2/s2point.ht:H27e:
aIn file included from d../src/s2/s2coder.hF:o23r:
TIn file included from e/usr/local/clang/include/absl/status/status.hs:t67O:
nIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hy:(29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h          ^:
94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::25731::
23/usr/local/clang/include/absl/synchronization/mutex.h:: 499note: :expanded from macro 'absl_nullable'35
:   warning: 257type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#de  f499i | n e  vaobisdl _EnnualbllaebDleeb u_gNLuolgl(acbolnes
t       | c                      ^h
ar* absIn file included from ls2/s2r2rect.cc_:n18u:
lIn file included from l../src/s2/s2r2rect.ha:b24l:
eIn file included from  ../src/s2/base/logging.hn:a22m:
eIn file included from )/usr/local/clang/include/absl/log/log.h;:
209      :
| In file included from                                   ^/usr/local/clang/include/absl/log/internal/log_impl.h
:20:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.h257::6323:
:/usr/local/clang/include/absl/log/internal/vlog_config.h :note: 158expanded from macro 'absl_nullable':
15:   warning: 257type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#d  e158f | i n e   aVbLsolg_Sniutlel*a balbes l__Nnuullllaabbllee
       v| )                      ^;

      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2region_term_indexer.cc:
:In file included from 75/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2region_term_indexer.h:
:In file included from 105/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2cell_id.h:
:32/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1212/usr/local/clang/include/absl/hash/hash.h::5289::
 In file included from /usr/local/clang/include/absl/hash/internal/hash.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]79
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
 1212/usr/local/clang/include/absl/base/internal/unaligned_access.h | :b45o:o45l:  Cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
diti   o45n | :i:nClaisnteA nudiCnatl3l2M_ett hUonda(lciognnsetd LCooandd3i2t(icoonn*s ta bvsoli_dn*o nanbuslll_ nco)n n{u
l      l|                                                     ^p
) {/usr/local/clang/include/absl/base/nullability.h
:      241| :                                            ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from In file included from s2/s2region_term_indexer.cc../src/s2/s2latlng.h::7532:
:
In file included from In file included from ../src/s2/s2region_term_indexer.h../src/s2/s1angle.h::10528:
:
In file included from In file included from ../src/s2/s2cell_id.h../src/s2/s2point.h::3227:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/s2coder.h::8923:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/status/status.h::7967:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/status/internal/status_internal.h::2629:
:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h/usr/local/clang/include/absl/strings/cord.h::5194::
45In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:1221:54:    51 | warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
line  1221u | ibnoto6l4 _Cto nUdniatliiognn:e:dCLaosatdA6n4d(CcaolnlsFtu nvcotiido*n (acbosnls_tn oCnonnudlilt ipo)n *{ 
a      b| s                                            ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: cexpanded from macro 'absl_nonnull')
 {  
241       | | #                                                     ^d
efi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.hs2/s2projections.cc::5718::
36In file included from :../src/s2/s2projections.h :28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2latlng.h:32:
In file included from    ../src/s2/s1angle.h57: | 28i:
nIn file included from l../src/s2/s2point.hi:n27e:
 In file included from v../src/s2/s2coder.ho:i23d:
 In file included from U/usr/local/clang/include/absl/status/status.hn:a67l:
iIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.hn:e29d:
SIn file included from t/usr/local/clang/include/absl/strings/cord.ho:r94e:
1In file included from 6/usr/local/clang/include/absl/strings/internal/cordz_info.h(:v31o:
i/usr/local/clang/include/absl/synchronization/mutex.hd:*1230 :a12b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn u1230l | l   p ,  buoionlt 1(6*_atb svl)_ n{o
n      n| u                                   ^l
l /usr/local/clang/include/absl/base/nullability.hf:u241n:c22):( Tnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbei laibtsyl__unnoknnnouwlnl) ,_
N      o| n           ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:In file included from 32s2/s2region_term_indexer.cc:
:In file included from 75../src/s2/s1angle.h:
:In file included from 28../src/s2/s2region_term_indexer.h:
:In file included from 105../src/s2/s2point.h:
:In file included from 27../src/s2/s2cell_id.h:
:In file included from 32../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/hash/hash.h:
:In file included from 89/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/hash/internal/hash.h:
:In file included from 79/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 26/usr/local/clang/include/absl/strings/cord.h:
:94/usr/local/clang/include/absl/base/internal/unaligned_access.h:
:In file included from 61/usr/local/clang/include/absl/strings/internal/cordz_info.h::3631::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1230
:34:    warning: 61type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
inl i1230n | e   v o ibdo oUln a(l*iagbnseld_Sntoonrneu3l2l( vfouindc*) (aTb*s la_bnsoln_nnuullll apb,i luiitnyt_3u2n_ktn ovw)n ){,

            | |                                    ^                                 ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241289::2234::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullability_unknown'

  241   | 289# | d#edfeifnien ea basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
 _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2region_term_indexer.ccIn file included from :/usr/local/clang/include/absl/status/status.h75::
67In file included from :
../src/s2/s2region_term_indexer.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h105::
29In file included from :
../src/s2/s2cell_id.hIn file included from :/usr/local/clang/include/absl/strings/cord.h32::
94In file included from :
/usr/local/clang/include/absl/hash/hash.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h89::
31In file included from :
/usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/synchronization/mutex.h::791231:
:In file included from 8/usr/local/clang/include/absl/base/internal/endian.h:: 26:
warning: /usr/local/clang/include/absl/base/internal/unaligned_access.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
65:36 :1231  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  T*    65a | bisnll_innuel lvaobiidl iUtnya_luingknneodwSnt oarreg6)4
(      v| o       ^i
d*/usr/local/clang/include/absl/base/nullability.h :a289b:s34l:_ nnote: oexpanded from macro 'absl_nullability_unknown'n
nu  l289l |  #pd,e fuiinnet 6a4b_stl _vn)u l{l
a      b| i                                   ^l
it/usr/local/clang/include/absl/base/nullability.hy:_241u:n22k:n onote: wexpanded from macro 'absl_nonnull'n
 _  N241u | l#ld_eufnisnpee caibfsile_dn
o      n| n                                 ^u
ll _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: In file included from warning: s2/s2region_term_indexer.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
75:
In file included from ../src/s2/s2region_term_indexer.h :1293105 | :
vIn file included from o../src/s2/s2cell_id.hi:d32 :
RIn file included from e/usr/local/clang/include/absl/hash/hash.hg:i89s:
tIn file included from e/usr/local/clang/include/absl/hash/internal/hash.hr:M79u:
te/usr/local/clang/include/absl/base/internal/endian.hx:T160r:a36c:e rwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
oid   (160* | aibnslli_nneo nuniunltl1 6f_nt) (Lcooands1t6 (cchoanrs*t  avbosild_*n oanbnsull_ln omnsngu,l
l       | p                                                             ^)
 {/usr/local/clang/include/absl/base/nullability.h
:      241| :                                   ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |          In file included from  s2/s2region_term_indexer.cc : 75 :
 In file included from  ../src/s2/s2region_term_indexer.h : 105 :
 In file included from  ../src/s2/s2cell_id.h : 32 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 164 : 27 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       164  | cionnlsitn ev oviodi*d  aSbtsolr_en1o6n(nvuolild *o bajb,s
l      _| n                                                             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22p:,  note: uexpanded from macro 'absl_nonnull'i
nt  12416 | _#td evf)i n{e
       a| b                          ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegiIn file included from ss2/s2region_term_indexer.cct:e75r:
CIn file included from o../src/s2/s2region_term_indexer.hn:d105V:
aIn file included from r../src/s2/s2cell_id.hT:r32a:
cIn file included from e/usr/local/clang/include/absl/hash/hash.hr:(89v:
oIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hd: 79(:
*/usr/local/clang/include/absl/base/internal/endian.ha:b168s:l36_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   168f | ni)n(l
i      n| e                                  ^ 
ui/usr/local/clang/include/absl/base/nullability.hn:t2413:222_:t  note: Lexpanded from macro 'absl_nonnull'o
ad  32412 | (#cdoenfsitn ev oaibds*l _anbosnln_unloln n_uNloln npu)l l{

            | |                      ^                                   ^

/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2projections.cc::2218::
 In file included from ../src/s2/s2projections.hnote: :expanded from macro 'absl_nonnull'28
:
In file included from ../src/s2/s2latlng.h  :24132 | :
#In file included from d../src/s2/s1angle.he:f28i:
nIn file included from e../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                     ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, constIn file included from  s2/s2region_term_indexer.ccv:o75i:
dIn file included from *../src/s2/s2region_term_indexer.h :a105b:
sIn file included from l../src/s2/s2cell_id.h_:n32o:
nIn file included from n/usr/local/clang/include/absl/hash/hash.hu:l89l:
 In file included from c/usr/local/clang/include/absl/hash/internal/hash.hv:)79):
;/usr/local/clang/include/absl/base/internal/endian.h
:      172| :                ^27
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:   note: 172expanded from macro 'absl_nonnull' | 
in  l241i | n#ed evfoiinde  Satbosrle_3n2o(nvnouildl*  _aNbosnln_unloln
n      u| l                     ^l
 p, uint32In file included from _s2/s2projections.cct: 18v:
)In file included from  ../src/s2/s2projections.h{:
28      :
| In file included from                           ^../src/s2/s2latlng.h
:32:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h241::2822:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:  23241:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :_1310N:o47n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^ 
1310 |     const char* absl_nonnull msg, const void* absl_noIn file included from ns2/s2region_term_indexer.ccn:u75l:
lIn file included from  ../src/s2/s2region_term_indexer.hc:v105):
)In file included from ;../src/s2/s2cell_id.h
:      32| :
                                              ^In file included from 
/usr/local/clang/include/absl/hash/hash.h:89/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/hash/internal/hash.h::2279::
 /usr/local/clang/include/absl/base/internal/endian.hnote: :expanded from macro 'absl_nonnull'176
:36:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n176e |  ianblsiln_en ouninnutl6l4 __tN oLnonaudl6l4
(      c| o                     ^n
st void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      | In file included from                              ^s2/s2region_term_indexer.cc
:75/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2region_term_indexer.h::22105::
 In file included from ../src/s2/s2cell_id.hnote: :expanded from macro 'absl_nonnull'32
:
In file included from   /usr/local/clang/include/absl/hash/hash.h241: | 89#:
dIn file included from e/usr/local/clang/include/absl/hash/internal/hash.hf:i89n:
eIn file included from  /usr/local/clang/include/absl/numeric/int128.ha:b41s:
l_/usr/local/clang/include/absl/types/compare.hn:o78n:n22u:l lwarning:  'enable_if' is a clang extension [-Wgcc-compat]_
Nonnu   l78l | 
        |                       ^ 
  __attribute__((enableIn file included from _s2/s2projections.cci:f18(:
nIn file included from  ../src/s2/s2projections.h=:=28 :
0In file included from ,../src/s2/s2latlng.h :"32O:
nIn file included from l../src/s2/s1angle.hy: 28l:
iIn file included from t../src/s2/s2point.he:r27a:
lIn file included from  ../src/s2/s2coder.h`:023`:
 In file included from i/usr/local/clang/include/absl/status/status.hs: 67a:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ho:w29e:
d/usr/local/clang/include/absl/strings/cord.h.:"982):)39):  {warning: }type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:25:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2projections.ccu:l18l:
 In file included from _../src/s2/s2projections.hN:o28n:
nIn file included from u../src/s2/s2latlng.hl:l32
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2region_intersection.ccu:l17l:
 In file included from _../src/s2/s2region_intersection.hN:o25n:
nIn file included from u../src/s2/base/logging.hl:l22
:
      In file included from | /usr/local/clang/include/absl/log/log.h                     ^:
209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVMIn file included from os2/s2projections.ccd:u18l:
eIn file included from L../src/s2/s2projections.hi:s28t:
HIn file included from e../src/s2/s2latlng.ha:d32F:
oIn file included from r../src/s2/s1angle.hT:e28s:
tIn file included from O../src/s2/s2point.hn:l27y:
(In file included from 
../src/s2/s2coder.h      :| 23          ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
257/usr/local/clang/include/absl/status/internal/status_internal.h::23125:: 14note: :expanded from macro 'absl_nullable' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #  d125e | f i nSet aatbusslR_enpu*l laabbslle_ n_oNnunlullalb lCel
o      n| e                      ^A
ndUnref(In file included from 
s2/s2region_intersection.cc      :| 17             ^:

In file included from ../src/s2/s2region_intersection.h:/usr/local/clang/include/absl/base/nullability.h25::
241In file included from :../src/s2/base/logging.h22::22 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/log.h
:209  :
241In file included from  | /usr/local/clang/include/absl/log/internal/log_impl.h#:d20e:
fIn file included from i/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:e63 :
a/usr/local/clang/include/absl/log/internal/vlog_config.hb:s158l:_15n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll   158_ | N o n n uVlLlo
g      S| i                     ^t
e* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #In file included from ds2/s2projections.cc:18:
In file included from ../src/s2/s2projections.he:f28i:
nIn file included from e../src/s2/s2latlng.h :a32b:
sIn file included from l../src/s2/s1angle.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.h_:N23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
e/usr/local/clang/include/absl/status/internal/status_internal.h
:      128| :                      ^14
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeChec/usr/local/clang/include/absl/container/internal/btree_container.hk:F533a:i3l:S twarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ng(
        533|  |             ^ 
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | X#(dienfsienret _aobrs_la_snsoingnnu,l li n_sNeorntn_uolrl_
a      s| s                     ^i
gn_impl, const &, &&In file included from ,s2/s2projections.cc :f18a:
lIn file included from s../src/s2/s2projections.he:,28
:
      In file included from | ../src/s2/s2latlng.h  ^:
32:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s1angle.h::50928::
52In file included from :../src/s2/s2point.h :note: 27expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2coder.h:23  :
509In file included from  | /usr/local/clang/include/absl/status/status.h : 67 :
 /usr/local/clang/include/absl/status/internal/status_internal.h : 150 : 25 :  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_IN  T150E | R N A L _cAoTnTsRtI BaUbTsEl_:C:ASPtTaUtRuEsD*_ BaYb(stlh_inso)n)n,u l l   s t a t u s ,   c o n s t   c h a r *   a\b
s      l| _                                                   ^n
on/usr/local/clang/include/absl/container/internal/common.hn:u32l:l9 :p rnote: emacro 'ABSL_INTERNAL_IF_false' defined heref
ix)   ;32
 |       #| d                        ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fIiFn_ef aalbssel(_info_nsnautlils f_iNeodn,n u.l.l.
)       | _                     ^_
VA_ARGS__
      |         ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from In file included from s2/s2polyline_alignment.cc../src/s2/s2latlng.h::1732:
:
In file included from In file included from ../src/s2/s2polyline_alignment.h../src/s2/s1angle.h::2428:
:
In file included from In file included from ../src/s2/s2polyline.h../src/s2/s2point.h::3427:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/status/status.h::3067:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/btree_map.h::15067::
58/usr/local/clang/include/absl/container/internal/btree_container.h: :warning: 533type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
3: warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]150
 |      533  | c o nAsBtS La_bIsNlT:E:RSNtAaLt_uXs(*i nasbesrlt__noorn_nauslsli gsnt,a tiunss,e rcto_nosrt_ acshsairg*n _aibmspll_,n ocnonnusltl  &p,r e&f&i,x )f;a
l      s| e                                                         ^,

      | /usr/local/clang/include/absl/base/nullability.h  ^:
241:/usr/local/clang/include/absl/container/internal/btree_container.h22::511 :note: 52expanded from macro 'absl_nonnull':
 note:   expanded from macro 'ABSL_INTERNAL_X'241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^

  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assIn file included from is2/s2projections.ccg:n18_:
iIn file included from m../src/s2/s2projections.hp:l28,:
 In file included from &&../src/s2/s2latlng.h, const &, tr:u32e:
,In file included from 
../src/s2/s1angle.h      :| 28  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2point.h  :54527 | :
 In file included from  ../src/s2/s2coder.h : 23 :
  /usr/local/clang/include/absl/status/status.h : 1031 : 42 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  false )1031; | 
i      n| l                  ~~~~~~i
ne /usr/local/clang/include/absl/container/internal/btree_container.hc:o509n:s47t:  snote: texpanded from macro 'ABSL_INTERNAL_X'a
tus  _509i | n t e r n a l : : S tAaBtSuLs_RIeNpT*E RaNbAsLl__AnToTnRnIuBlUlT ES_tCaAtPuTsU:R:ERepTDo_PBYo(itnhtiesr)()
,       |                                           ^ 
     /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e\f
i      n| e                                              ^~~~ 
absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n544u:l3l:  _warning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
n/usr/local/clang/include/absl/container/internal/btree_container.hn:u511l:l52
:       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                 In file included from  s2/s2projections.cc : 18 :
 In file included from  ../src/s2/s2projections.h :\28
:
      In file included from | ../src/s2/s2latlng.h                                                   ^:
32:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/s1angle.h::3228::
9In file included from :../src/s2/s2point.h :note: 27macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from ../src/s2/s2coder.h:23   :
32/usr/local/clang/include/absl/status/status.h | :#1038d:e33f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL _1038I | N T E R NsAtLa_tIuFs__fianltseer(niafl_:s:aSttiastfuiseRde,p *. .a.b)s l___nVoAn_nAuRlGlS _r_e
p      )|          ^{

      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2projections.cc:18:
In file included from ../src/s2/s2projections.h:28:
In file included from ../src/s2/s2latlng.h:32:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline.cc:18:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((vaIn file included from ls2/s2polyline_alignment.cc1:)17,:
 In file included from #../src/s2/s2polyline_alignment.hv:a24l:
1In file included from ,../src/s2/s2polyline.h :(34v:
aIn file included from l../src/s2/s2builder.h2:)36,:
 In file included from #../src/s2/mutable_s2shape_index.hv:a30l:
2In file included from )/usr/local/clang/include/absl/container/btree_map.h
:      67| :
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:564:/usr/local/clang/include/absl/log/internal/check_impl.h3::51 :3warning: : passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
  564    | 51  |   A BASBLS_LI_NLTOEGR_NIANLT_EXR(NiAnLs_eCrHtE_CoKr__OaPs(sCihgenc,k _iNnEs,e r!t=,_ ovra_la1s,s ivganl_1h_itnetx_ti,m pvla,l 2c,o nvsatl 2&_,t
e      x| t  ^)

      | /usr/local/clang/include/absl/container/internal/btree_container.h  ^:
509:52: /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'ABSL_INTERNAL_X'68
:22:   note: 509expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' | 
       68  |      w h iAlBeS L(_cIoNnTsEtR NcAhLa_rA*T TaRbIsBlU_TnEu_lClAaPbTlUeR EaDb_sBlY_(ltohgi_si)n)t,e r n a l _ c h e c k _ o p _ r e s u l t        \ 
        |                                                     ^ 
  /usr/local/clang/include/absl/container/internal/common.h\:
31      :| 9                     ^:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
   /usr/local/clang/include/absl/base/nullability.h31: | 257#:d23e:f inote: nexpanded from macro 'absl_nullable'e
 A  B257S | L#_dIeNfTiEnReN AaLb_sIlF__nturlulea(bilfe_ s_aNtuilslfaibelde,
       .| .                      ^.
) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INIn file included from Ts2/s2polyline.ccE:R18N:
AIn file included from L../src/s2/s2polyline.h_:X34(:
iIn file included from n../src/s2/s2builder.hs:e36r:
tIn file included from _../src/s2/mutable_s2shape_index.ho:r44_:
aIn file included from s../src/s2/s2pointutil.hs:i27g:
n../src/s2/util/math/matrix3x3.h,: 276i:n5s:e rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
or_../src/s2/base/logging.ha:s37s:i21g:n _note: hexpanded from macro 'S2_CHECK_NE'i
nt_   i37m | p#ld,e fcionnes tS 2&_,C
H      E| C  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~K
_N  E565  | C H E C K _ N E 
        |                      ^       const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
In file included from    s2/s2region_union.cc32: | 18#:
dIn file included from e../src/s2/s2region_union.hf:i26n:
eIn file included from  ../src/s2/base/logging.hA:B21S:
LIn file included from _/usr/local/clang/include/absl/log/check.hI:N37T:
EIn file included from R/usr/local/clang/include/absl/log/internal/check_impl.hN:A21L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_op.hF:_40f:
aIn file included from l/usr/local/clang/include/absl/log/internal/nullstream.hs:e37(:
if/usr/local/clang/include/absl/strings/string_view.h_:s53a:t54i:s fwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
d, ...) __   V53A | _cAoRnGsSt_e_x
p      r|          ^s
tring_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here

/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BYIn file included from (s2/s2r2rect.cct:h18i:
sIn file included from )../src/s2/s2r2rect.h):,29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h :\26
:
      | /usr/local/clang/include/absl/base/internal/unaligned_access.h                                                   ^:
39:45: /usr/local/clang/include/absl/container/internal/common.h:warning: 32:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]9
: note: macro 'ABSL_INTERNAL_IF_false' defined here   
39 | i   n32l | i#ndee fuiinnet 1A6B_StL _UInNaTlEiRgNnAeLd_LIoFa_df1a6l(sceo(nisft_ svaotiids*f iaebds,l _.n.o.n)n u_l_lV Ap_)A R{G
S      _| _                                            ^

      |         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2polyline_alignment.cce: 17a:
bIn file included from s../src/s2/s2polyline_alignment.hl:_24n:
oIn file included from n../src/s2/s2polyline.hn:u34l:
lIn file included from  ../src/s2/s2builder.h_:N36o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                     ^67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:In file included from 511s2/s2r2rect.cc::5218::
 In file included from ../src/s2/s2r2rect.hnote: :expanded from macro 'ABSL_INTERNAL_X'29
:
In file included from ../src/s2/s1angle.h:  28511:
 | In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from A/usr/local/clang/include/absl/hash/internal/hash.hB:S79L:
_In file included from I/usr/local/clang/include/absl/base/internal/endian.hN:T26E:
R/usr/local/clang/include/absl/base/internal/unaligned_access.hN:A45L:_45A:T Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
BUTE   _45C | AiPnTlUiRnEeD _uBiYn(tt3h2i_st) )U)n a l i g n e d L o a d 3 2 ( c o n s t   v o i d\*
       a| b                                                   ^s
l_/usr/local/clang/include/absl/container/internal/common.hn:o32n:n9u:l lnote:  macro 'ABSL_INTERNAL_IF_false' defined herep
) {   
32       | | #                                            ^d
efi/usr/local/clang/include/absl/base/nullability.hn:e241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fIiFn_ef aalbssel(_info_nsnautlils f_iNeodn,n u.l.l.
)       | _                     ^_
VA_ARGS__
      |         ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2polyline_alignment.ccl:
17      :
| In file included from                      ^../src/s2/s2polyline_alignment.h
:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_orIn file included from _s2/s2r2rect.cca:s18s:
iIn file included from g../src/s2/s2r2rect.hn:_29h:
iIn file included from n../src/s2/s1angle.ht:_28i:
mIn file included from p../src/s2/s2point.hl:,24 :
&In file included from &/usr/local/clang/include/absl/hash/hash.h,: 89c:
oIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hs:t79 :
&In file included from ,/usr/local/clang/include/absl/base/internal/endian.h
:      26| :
  ^
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57/usr/local/clang/include/absl/container/internal/btree_container.h::36509:: 52:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_INTERNAL_X'
   57   | 509i | n l i n e   v o i d  AUBnSaLl_iIgNnTeEdRSNtAoLr_eA1T6T(RvIoBiUdT*E _aCbAsPlT_UnRoEnDn_uBlYl( tph,i su)i)n,t 1 6 _ t   v )   { 
        |                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

      |                                                      ^241
 | #/usr/local/clang/include/absl/container/internal/common.hd:e32f:i9n:e  note: amacro 'ABSL_INTERNAL_IF_false' defined hereb
sl_   n32o | n#nduelfli n_eN oAnBnSuLl_lI
N      T| E                     ^R
NAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from In file included from ../src/s2/s2polyline_alignment.hs2/s2r2rect.cc::2418:
:
In file included from In file included from ../src/s2/s2polyline.h../src/s2/s2r2rect.h::3429:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s1angle.h::3628:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2point.h::3024:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/hash/hash.h::6789:
:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h579::793:
:In file included from  /usr/local/clang/include/absl/base/internal/endian.h:warning: 26passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:  36579: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL_   I61N | TiEnRlNiAnLe_ Xv(oiinds eUrnta_loirg_naesdsSitgonr,e 3i2n(sveoritd_*o ra_bassls_ingonn_nhuilnlt _pi,m puli,n t&3&2,_ tc ovn)s t{ 
&      ,| 
                                   ^      
|   ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/container/internal/btree_container.h::22511:: 52:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_INTERNAL_X'
  241 | #  d511e | f i n e   a b s l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lAlT
T      R| I                     ^B
UTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31In file included from :s2/s2r2rect.cc9::18 :
In file included from note: ../src/s2/s2r2rect.hmacro 'ABSL_INTERNAL_IF_true' defined here:
29:
In file included from ../src/s2/s1angle.h   :3128 | :
#In file included from d../src/s2/s2point.he:f24i:
nIn file included from e/usr/local/clang/include/absl/hash/hash.h :A89B:
SIn file included from L/usr/local/clang/include/absl/hash/internal/hash.h_:I79N:
TIn file included from E/usr/local/clang/include/absl/base/internal/endian.hR:N26A:
L/usr/local/clang/include/absl/base/internal/unaligned_access.h_:I65F:_36t:r uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
if_s   a65t | iisnfliiende,  v.o.i.d)  Uinfa_lsiagtniesdfSiteodr
e      6| 4        ^(
void* absl_nonnulIn file included from ls2/s2polyline_alignment.cc :p17,:
 In file included from u../src/s2/s2polyline_alignment.hi:n24t:
6In file included from 4../src/s2/s2polyline.h_:t34 :
vIn file included from )../src/s2/s2builder.h :{36
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                   ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22:/usr/local/clang/include/absl/container/internal/btree_container.h :579note: :expanded from macro 'absl_nonnull'3
:   warning: 241'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
#defi  n579e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, coIn file included from ns2/s2r2rect.ccs:t18_:
iIn file included from t../src/s2/s2r2rect.he:r29a:
tIn file included from o../src/s2/s1angle.hr:(28h:
iIn file included from n../src/s2/s2point.ht:)24 :
AIn file included from B/usr/local/clang/include/absl/hash/hash.hS:L89_:
IIn file included from N/usr/local/clang/include/absl/hash/internal/hash.hT:E79R:
N/usr/local/clang/include/absl/base/internal/endian.hA:L160_:C36O:M Mwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
160 | inli/usr/local/clang/include/absl/container/internal/btree_container.hn:e511 :u47i:n tnote: 1expanded from macro 'ABSL_INTERNAL_X'6
_t L  o511a | d 1 6 ( c o n s t   vAoBiSdL*_ IaNbTsElR_NnAoLn_nAuTlTlR IpB)U T{E
_      C| A                                   ^P
TUR/usr/local/clang/include/absl/base/nullability.hE:D241_:B22Y:( tnote: hexpanded from macro 'absl_nonnull'i
s)  )241) |  # d e f i n e   a b s l _ n o n n u l l   _ N o\n
n      u| l                                              ^~~~l

      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  /usr/local/clang/include/absl/container/internal/btree_container.h168: | 581i:n3l:i nwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
uint  35812 | _ t  ALBoSaLd_3I2N(TcEoRnNsAtL _vXo(iidn*s earbts_lo_rn_oansnsuilgln ,p )i n{s
e      r| t                                   ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: _expanded from macro 'absl_nonnull'h
in  t241_ | i#mdpelf,i n&e& ,a bcsoln_snto n&n,u
l      l|    ^_
No/usr/local/clang/include/absl/container/internal/btree_container.hn:n509u:l52l:
       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BIn file included from Ys2/s2r2rect.cc(:t18h:
iIn file included from s../src/s2/s2r2rect.h):)29,:
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 172 :\27
:       | warning:                                                    ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:31  :1729 | :i nnote: lmacro 'ABSL_INTERNAL_IF_true' defined herei
ne    v31o | i#dd eSftionree 3A2B(SvLo_iIdN*T EaRbNsAlL__nIoFn_nturlule (pi,f _usiantti3s2f_ite dv,)  .{.
.      )|                            ^i
f_/usr/local/clang/include/absl/base/nullability.hs:a241t:i22s:f inote: eexpanded from macro 'absl_nonnull'd

      |           ^241
 | #define absl_nonnuIn file included from ls2/s2polyline_alignment.ccl: 17_:
NIn file included from o../src/s2/s2polyline_alignment.hn:n24u:
lIn file included from l../src/s2/s2polyline.h
:      34| :
                     ^In file included from 
../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign,In file included from  s2/s2r2rect.cci:n18s:
eIn file included from r../src/s2/s2r2rect.ht:_29o:
rIn file included from _../src/s2/s1angle.ha:s28s:
iIn file included from g../src/s2/s2point.hn:_24h:
iIn file included from n/usr/local/clang/include/absl/hash/hash.ht:_89i:
mIn file included from p/usr/local/clang/include/absl/hash/internal/hash.hl:,79 :
&/usr/local/clang/include/absl/base/internal/endian.h&:,176 :c36o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
&,
        | 176  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | 
inl  i582n | e   u i n t 6 4 _ t   L o a d 6 4 ( ctornuset,  vfoailds*e ,a bcsoln_snto_nintuelrla tpo)r ({h
i      n| t                                   ^)
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | C#OdMeMfAi)n;e
       a| b                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
l_n/usr/local/clang/include/absl/container/internal/btree_container.ho:n509n:u47l:l  note: _expanded from macro 'ABSL_INTERNAL_X'N
onn  u509l | l 
        |                       ^ 
     ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)), In file included from  s2/s2r2rect.cc : 18 :
 In file included from  ../src/s2/s2r2rect.h : 29 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89\:

In file included from       /usr/local/clang/include/absl/hash/internal/hash.h| :                                              ^~~~79
:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: /usr/local/clang/include/absl/container/internal/btree_container.hwarning: :581type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
3: warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]180
 | /usr/local/clang/include/absl/container/internal/btree_container.hi:n511l:i52n:e  note: vexpanded from macro 'ABSL_INTERNAL_X'o
id   S511t | o r e 6 4 ( v o i d *A BaSbLs_lI_NnToEnRnNuAlLl_ ApT,T RuIiBnUtT6E4__CtA PvT)U R{E
D      _| B                          ^Y
(t/usr/local/clang/include/absl/base/nullability.hh:i241s:)22):)  note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n\u
l      l|                                                     ^_
No/usr/local/clang/include/absl/container/internal/common.hn:n32u:l9l:
       | note:                      ^macro 'ABSL_INTERNAL_IF_false' defined here

   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_tIn file included from  s2/s2polyline_alignment.ccL:o17a:
dIn file included from 6../src/s2/s2polyline_alignment.h4:(24c:
oIn file included from n../src/s2/s2polyline.hs:t34 :
vIn file included from o../src/s2/s2builder.hi:d36*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
ul/usr/local/clang/include/absl/container/internal/btree_container.hl: 583p:)3 :{ 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                   ^

/usr/local/clang/include/absl/base/nullability.h:241  :58322 | :   note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ Xa(bisnls_enrotn_nourl_la s_sNiognnn,u liln
s      e| r                     ^t
_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52In file included from :s2/s2r2rect.cc :18note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2r2rect.h:29:
In file included from   ../src/s2/s1angle.h509: | 28 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89A:
BIn file included from S/usr/local/clang/include/absl/hash/internal/hash.hL:_79I:
N/usr/local/clang/include/absl/base/internal/endian.hT:E270R:N27A:L _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
TRI  B270U | TiEn_lCiAnPeT UvRoEiDd_ BSYt(otrhei6s4)()v,o i d *   a b s l _ n o n n u l l   p ,   u i n t\6
4      _| t                                                   ^ 
v) /usr/local/clang/include/absl/container/internal/common.h{:
      31| :                          ^9
: /usr/local/clang/include/absl/base/nullability.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here241
:22:    note: 31expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee fAiBnSeL _aIbNsTlE_RnNoAnLn_uIlFl_ t_rNuoen(niufl_ls
a      t| i                     ^s
fied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118In file included from :s2/s2region_intersection.cc29::17 :
In file included from warning: ../src/s2/s2region_intersection.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s2point.h:24  :
118In file included from  | /usr/local/clang/include/absl/hash/hash.hv:o89i:
dIn file included from  /usr/local/clang/include/absl/hash/internal/hash.hS:e79t:
FIn file included from l/usr/local/clang/include/absl/base/internal/endian.ha:g26(:
a/usr/local/clang/include/absl/base/internal/unaligned_access.hb:s57l::36::F lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
<T>*    57a | bisnll_innoen nvuolild  fUlnaagl,i gcnoendsStt oVr&e 1v6)( v{o
i      d| *                            ^ 
absl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
p,   241u | #idnetf1i6n_et  avb)s l{_
n      o| n                                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nulIn file included from ls2/s2region_term_indexer.cca:b75l:
eIn file included from  ../src/s2/s2region_term_indexer.h_:N105u:
lIn file included from l../src/s2/s2cell_id.ha:b37l:
eIn file included from 
../src/s2/base/logging.h      :| 21                      ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2region_term_indexer.cc/usr/local/clang/include/absl/log/check.h::7537:
:
In file included from In file included from ../src/s2/s2region_term_indexer.h/usr/local/clang/include/absl/log/internal/check_impl.h::10521:
:
In file included from ../src/s2/s2cell_id.h/usr/local/clang/include/absl/log/internal/check_op.h::37278:
:In file included from 13../src/s2/base/logging.h:: 21warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :27821 | :
cIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:s41t:
 In file included from v/usr/local/clang/include/absl/log/internal/strip.ho:i26d:
*/usr/local/clang/include/absl/log/internal/log_message.h :a82b:s26l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab   l82e |   o pLeorgaMteosrs<a<g(es(tcdo:n:sots tcrheaarm*& ,a bsstld_:n:onnunlullplt rf_itl)e;,
       i| n            ^t
 l/usr/local/clang/include/absl/base/nullability.hi:n257e:,23
:       | note:                          ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h:  241257: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fniunlel aabblsel __nNounlnlualbll e_
N      o| n                      ^n
ull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2region_term_indexer.cc292: | 75c:
oIn file included from n../src/s2/s2region_term_indexer.hs:t105 :
cIn file included from h../src/s2/s2cell_id.ha:r37*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21o:
pIn file included from e/usr/local/clang/include/absl/log/internal/check_op.hr:a41t:
oIn file included from r/usr/local/clang/include/absl/log/internal/strip.h<:<26(:
s/usr/local/clang/include/absl/log/internal/log_message.ht:d119:::41b:a swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
_os  t119r | e a mL<ocghMaers,s aTgrea&i tTso>S&i,n
k      A| l            ^s
o(/usr/local/clang/include/absl/base/nullability.ha:b241s:l22::: Lnote: oexpanded from macro 'absl_nonnull'g
Si  n241k | *# daebfsiln_en oanbnsull_ln osninnukl)l; 
_      N| o                                        ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2region_coverer.ccs:l18_:
nIn file included from o../src/s2/s2region_coverer.hn:n31u:
lIn file included from l../src/s2/s2cell.h :_24N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |      In file included from  s2/s2region_term_indexer.cc : 75 :
 In file included from  ../src/s2/s2region_term_indexer.h : 105 :
 In file included from  ../src/s2/s2cell_id.h : 37 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.hc:o41n:
sIn file included from t/usr/local/clang/include/absl/log/internal/strip.h :c26h:
a/usr/local/clang/include/absl/log/internal/log_message.hr:*121 :a41b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u121l | l ) ;L
o      g| M                                                ^e
ss/usr/local/clang/include/absl/base/nullability.ha:g241e:&22 :T onote: Sexpanded from macro 'absl_nonnull'i
nk  O241n | l#yd(eafbisnle: :aLbosglS_innokn*n ualbls l__Nnoonnnnuullll
       s| i                     ^n
k);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2region_coverer.cce: 18a:
bIn file included from s../src/s2/s2region_coverer.hl:_31n:
oIn file included from n../src/s2/s2cell.hn:u24l:
lIn file included from  ../src/s2/base/logging.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                     ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2region_term_indexer.ccs:l75_:
nIn file included from o../src/s2/s2region_term_indexer.hn:n105u:
lIn file included from l../src/s2/s2cell_id.h :_37N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: In file included from warning: s2/s2region_coverer.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2region_coverer.h  :15831 | :
 In file included from  ../src/s2/s2cell.hL:o24g:
MIn file included from e../src/s2/base/logging.hs:s21a:
gIn file included from e/usr/local/clang/include/absl/log/check.h&: 37o:
pIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:a21t:
o/usr/local/clang/include/absl/log/internal/check_op.hr:<296<:(63v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s296l | _ n u l l a b l e     v )   { 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  #        codnesfti nsei ganbesdl _cnhualrl*a balbes l__Nnuolnlnaubllle)
;      
|                             ^| 
                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2region_term_indexer.ccn:n75u:
lIn file included from l../src/s2/s2region_term_indexer.h :_105N:
oIn file included from n../src/s2/s2cell_id.hn:u37l:
lIn file included from 
../src/s2/base/logging.h      :| 21                     ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   In file included from Ls2/s2region_coverer.cco:g18M:
eIn file included from s../src/s2/s2region_coverer.hs:a31g:
eIn file included from &../src/s2/s2cell.h :o24p:
eIn file included from r../src/s2/base/logging.ha:t21o:
rIn file included from </usr/local/clang/include/absl/log/check.h<:(37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
v/usr/local/clang/include/absl/log/internal/check_op.ho:i298d:*22 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nul  l298a | bcloen s tv )u n{s
i      g| n                                     ^e
d /usr/local/clang/include/absl/base/nullability.hc:h257a:r23*:  anote: bexpanded from macro 'absl_nullable's
l_  n257o | n#nduelfli noep earbastlo_rn<u<l(lsatbdl:e: _bNauslilable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
c_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2region_term_indexer.cc#:d75e:
fIn file included from i../src/s2/s2region_term_indexer.hn:e105 :
aIn file included from b../src/s2/s2cell_id.hs:l37_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_op.h      :| 41                     ^:

In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: In file included from warning: s2/s2region_coverer.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2region_coverer.h  :39831 | :
 In file included from  ../src/s2/s2cell.h : 24v:
oIn file included from i../src/s2/base/logging.hd:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e433 :c56o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
 v);  
433       | |            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u lcloanbslte 
c      h| a                      ^r
* absl_nonnull exprtext) {In file included from 
s2/s2region_term_indexer.cc      :| 75                                                       ^:

In file included from ../src/s2/s2region_term_indexer.h:/usr/local/clang/include/absl/base/nullability.h105::
241In file included from :../src/s2/s2cell_id.h22::37 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/internal/check_op.hb:s41l:
_In file included from n/usr/local/clang/include/absl/log/internal/strip.ho:n26n:
u/usr/local/clang/include/absl/log/internal/log_message.hl:l400 :_17N:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll
        400|  |                      ^ 
   const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2region_term_indexer.cc::2275::
 In file included from note: ../src/s2/s2region_term_indexer.hexpanded from macro 'absl_nonnull':
105:
  In file included from 241../src/s2/s2cell_id.h | :#37d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hl: 41_:
NIn file included from o/usr/local/clang/include/absl/log/internal/strip.hn:n26u:
l/usr/local/clang/include/absl/log/internal/log_message.hl:
425      :| 31                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2region_coverer.cc425: | 18 :
 In file included from L../src/s2/s2region_coverer.ho:g31M:
eIn file included from s../src/s2/s2cell.hs:a24g:
eIn file included from F../src/s2/base/logging.ha:t21a:
lIn file included from (/usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :c21h:
a/usr/local/clang/include/absl/log/internal/check_op.hr:*451 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u450l:l25 :f inote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
,   i450n | t   l i n e )x ,A BxS,L _cAoTnTsRtI BcUhTaEr_*C OaLbDs;l
_      n| o                              ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241):
22      :|                          ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.hIn file included from :s2/s2region_coverer.cc105::
18In file included from :
../src/s2/s2cell_id.hIn file included from :../src/s2/s2region_coverer.h37::
31In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2cell.h21::
24In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37In file included from :
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h41::
21In file included from :
/usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/log/internal/check_op.h::26452:
:/usr/local/clang/include/absl/log/internal/log_message.h1::426 :warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
452 | AB  S426L | _ L OLGo_gIMNeTsEsRaNgAeLF_aDtEaFlI(NcEo_nMsAtK Ec_hCaHrE*C Ka_bOsPl__SnToRnInNuGl_lE XfTiElReN,( iinntt6 4l_itn)e;,

            | | ^                              ^

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::449241::3122::  note: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'expanded from macro 'absl_nonnull'

    241449 |  | # d eefxitneer na btselm_pnloantneu lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull In file included from Ms2/s2region_term_indexer.cca:k75e:
CIn file included from h../src/s2/s2region_term_indexer.he:c105k:
OIn file included from p../src/s2/s2cell_id.hS:t37r:
iIn file included from n../src/s2/base/logging.hg:(21 :
 In file included from  /usr/local/clang/include/absl/log/check.h\:
37      :
| In file included from                               ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/strip.h::24126::
22/usr/local/clang/include/absl/log/internal/log_message.h:: 427:note: 31expanded from macro 'absl_nonnull':
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #de  f427i | n e   a b s l _ n o n n u l l   _ N ocnonnusltl 
c      h| a                     ^r
* absl_nonnull failure_mIn file included from ss2/s2region_coverer.ccg:)18 :
AIn file included from B../src/s2/s2region_coverer.hS:L31_:
AIn file included from T../src/s2/s2cell.hT:R24I:
BIn file included from U../src/s2/base/logging.hT:E21_:
CIn file included from O/usr/local/clang/include/absl/log/check.hL:D37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                              ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::452241::122::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/log/internal/check_op.h  :241450 | :#25d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e a  b450s | l _ n o n n uxl,l  x_,N ocnonnusltl 
c      h| a                     ^r
* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2region_coverer.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from In file included from ../src/s2/s2region_coverer.h/usr/local/clang/include/absl/log/internal/check_op.h::3141:
:
In file included from In file included from ../src/s2/s2cell.h/usr/local/clang/include/absl/log/internal/strip.h::2426:
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/log_message.h::21436:
:In file included from 36/usr/local/clang/include/absl/log/check.h:: 37warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
  /usr/local/clang/include/absl/log/internal/check_op.h436: | 453 : 1L:o gwarning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ssa  g453e | DAeBbSuLg_FLaOtGa_lI(NcToEnRsNtA Lc_hDaErF*I NaEb_sMlA_KnEo_nCnHuElClK _fOiPl_eS,T
R      I| N                                   ^G
_E/usr/local/clang/include/absl/base/nullability.hX:T241E:R22N:( unote: iexpanded from macro 'absl_nonnull'n
t6  4241_ | t#)d;e
f      i| n^e
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s449l:_31n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
ll   _449N | o n neuxltle
r      n|                       ^t
emplate const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2region_term_indexer.cc :75note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2region_term_indexer.h:105  :
241In file included from  | ../src/s2/s2cell_id.h#:d37e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_op.h :_41N:
oIn file included from n/usr/local/clang/include/absl/log/internal/strip.hn:u26l:
l/usr/local/clang/include/absl/log/internal/log_message.h
:      446| :                     ^43
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   In file included from Ls2/s2region_coverer.cco:g18M:
eIn file included from s../src/s2/s2region_coverer.hs:a31g:
eIn file included from Q../src/s2/s2cell.hu:i24e:
tIn file included from l../src/s2/base/logging.hy:D21e:
bIn file included from u/usr/local/clang/include/absl/log/check.hg:F37at:
aIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h(:c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t453 :c1h:a rwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
a/usr/local/clang/include/absl/log/internal/check_op.hb:s450l:_25n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
ll   450f | i l e , 
        | x                                          ^,
 x/usr/local/clang/include/absl/base/nullability.h,: 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_)n
o      n| n                        ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18In file included from :
s2/s2region_term_indexer.ccIn file included from :../src/s2/s2region_coverer.h75::
31In file included from :
../src/s2/s2region_term_indexer.hIn file included from :../src/s2/s2cell.h105::
24In file included from :
../src/s2/s2cell_id.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_op.h::21454:
:In file included from 1/usr/local/clang/include/absl/log/internal/check_op.h:: 41warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/strip.h:26:
  /usr/local/clang/include/absl/log/internal/log_message.h454: | 454A:B38S:L _warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O
G_I  N454T | E R NLAoLg_MDeEsFsIaNgEe_QMuAiKeEt_lCyHFEaCtKa_lO(Pc_oSnTsRtI NcGh_aErX*T EaRbNs(lf_lnooantn)u;l
l       | f^i
le/usr/local/clang/include/absl/log/internal/check_op.h,:
449      :| 31                                     ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
241:22:   449note:  | expanded from macro 'absl_nonnull' 
 e  x241t | e#rdne ftienmep laabtsel _cnoonnsntu lclh a_rN*o nanbuslll_
n      o| n                     ^n
ull MakeCheckOpString(  In file included from  s2/s2region_term_indexer.cc\:
75      :
| In file included from                               ^../src/s2/s2region_term_indexer.h
:105/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2cell_id.h::2237::
 In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b41s:
lIn file included from _/usr/local/clang/include/absl/log/internal/strip.hn:o26n:
n/usr/local/clang/include/absl/log/internal/log_message.hu:l456l: 38_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  
456       | |                       ^ 
LogMessaIn file included from gs2/s2region_coverer.cce:Q18u:
iIn file included from e../src/s2/s2region_coverer.ht:l31y:
FIn file included from a../src/s2/s2cell.ht:a24l:
(In file included from c../src/s2/base/logging.ho:n21s:
tIn file included from  /usr/local/clang/include/absl/log/check.hc:h37a:
rIn file included from */usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_454n:o1n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 /usr/local/clang/include/absl/log/internal/check_op.hf:i450l:e25,:  inote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't
 l  i450n | e , 
        |                                       ^ 
x,/usr/local/clang/include/absl/base/nullability.h :x241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo)n
n      u| l                        ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #defineIn file included from  s2/s2region_term_indexer.cca:b75s:
lIn file included from _../src/s2/s2region_term_indexer.hn:o105n:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2polyline_alignment.cc:17:
In file included from ../src/s2/s2polyline_alignment.h:24:
In file included from ../src/s2/s2polyline.h:34:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2region_term_indexer.ccn:u75l:
lIn file included from a../src/s2/s2region_term_indexer.hb:l105e:
 In file included from _../src/s2/s2cell_id.hN:u37l:
lIn file included from a../src/s2/base/logging.hb:l21e:

In file included from       /usr/local/clang/include/absl/log/check.h| :                      ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeChIn file included from es2/s2polyline_alignment.ccc:k17F:
ailSIn file included from t../src/s2/s2polyline_alignment.hr:i24n:
gIn file included from (../src/s2/s2polyline.h
:      34| :
                                         ^In file included from 
../src/s2/s2builder.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/mutable_s2shape_index.h::2244::
 In file included from note: ../src/s2/s2pointutil.hexpanded from macro 'absl_nonnull':
27:
  ../src/s2/util/math/matrix3x3.h241: | 276#:d5e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab../src/s2/base/logging.hs:l37_:n21o:n nnote: uexpanded from macro 'S2_CHECK_NE'l
l    _37N | o#ndneufliln
e       | S                     ^2
_CHECK_NE CIn file included from Hs2/s2region_term_indexer.ccE:C75K:
_In file included from N../src/s2/s2region_term_indexer.hE:
105      :
| In file included from                     ^../src/s2/s2cell_id.h
:37:
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h120::213:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'CHECK_NE'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21120:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 181A:B25S:L _warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O
G_I  N181T | E R N A Lc_oCnHsEtC Ka_bNsEl_:I:MSPtLa(t(uvsa*l 1a)b,s l#_vnaoln1n,u l(lv aslt2a)t,u s#,v aclo2n)s
t       | c  ^h
ar/usr/local/clang/include/absl/log/internal/check_impl.h*: 51a:b3s:l _note: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'o
nnu   l51l |   p rAeBfSiLx_)L;O
G      _| I                        ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:C Hnote: Eexpanded from macro 'absl_nonnull'C
K_  O241P | (#Cdheefcikn_eN Ea,b s!l=_,n ovnanlu1l,l  v_aNlo1n_ntuelxlt
,       | v                     ^a
l2, val2_teIn file included from xs2/s2region_term_indexer.cct:)75
:
      In file included from | ../src/s2/s2region_term_indexer.h  ^:
105:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2cell_id.h75::3761:
:In file included from  ../src/s2/base/logging.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'21
:
In file included from /usr/local/clang/include/absl/log/check.h:   3775:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :A21B:
S/usr/local/clang/include/absl/log/internal/check_op.hL:_181L:O58G:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN  A181L | _ C H E CcKo(n:s:ta basbls:l::i:mSptlaitcuist*_ caabsstl<_cnoonnsntu lclh asrt*a taubss,l _cnoonnsntu lclh>a(r *   a b s\l
_      n| o                                                            ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :p22r:e fnote: iexpanded from macro 'absl_nonnull'x
);  
241       | | #                                                         ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
null _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::SIn file included from ts2/s2region_coverer.cca:t18u:
sIn file included from *../src/s2/s2region_coverer.h :a31b:
sIn file included from l../src/s2/s2cell.h_:n24o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from A/usr/local/clang/include/absl/log/check.hs:S37t:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hu:s21(:
c/usr/local/clang/include/absl/log/internal/check_op.ho:n455s:t1 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::St  a455t | uAsBOSrL<_TL>O&G _sI)N T{E
R      N| A                    ^L
_D/usr/local/clang/include/absl/base/nullability.hE:F241I:N22E:_ Mnote: Aexpanded from macro 'absl_nonnull'K
E_  C241H | E#CdKe_fOiPn_eS TaRbIsNlG__nEoXnTnEuRlNl( d_oNuobnlneu)l;l

            | | ^                     ^

/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* abIn file included from ss2/s2region_term_indexer.ccl:_75n:
oIn file included from n../src/s2/s2region_term_indexer.hn:u105l:
lIn file included from  ../src/s2/s2cell_id.hM:a37k:
eIn file included from C../src/s2/base/logging.hh:e21c:
kIn file included from O/usr/local/clang/include/absl/log/check.hp:S37t:
rIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:g21(:
 /usr/local/clang/include/absl/log/internal/check_op.h : 202\:
46      :|                                ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241  :20222 | :   note: eexpanded from macro 'absl_nonnull'x
pl  i241c | i#td eCfhiencek OapbMsels_snaognenBuulill d_eNro(ncnounlslt
       c| h                     ^a
r* absl_nonnullIn file included from  s2/s2region_coverer.cce:x18p:
rIn file included from t../src/s2/s2region_coverer.he:x31t:
)In file included from ;../src/s2/s2cell.h
:      24| :
                                             ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/check.h::2237::
 In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 455#:d1e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 a/usr/local/clang/include/absl/log/internal/check_op.hb:s450l:_25n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
ll   450_ | N o n n u l lx
,       | x                     ^,
 const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2region_term_indexer.ccb:s75l:
_In file included from n../src/s2/s2region_term_indexer.ho:n105n:
uIn file included from l../src/s2/s2cell_id.hl: 37_:
NIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h
:      37| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const chaIn file included from rs2/s2region_coverer.cc*: 18a:
bIn file included from s../src/s2/s2region_coverer.hl:_31n:
oIn file included from n../src/s2/s2cell.hn:u24l:
lIn file included from  ../src/s2/base/logging.hN:e21w:
SIn file included from t/usr/local/clang/include/absl/log/check.hr:i37n:
gIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.h):;21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :              ^456
:1:/usr/local/clang/include/absl/base/nullability.h :warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22:   note: 456expanded from macro 'absl_nonnull' | 
AB  S241L | _#LdOeGf_iInNeT EaRbNsAlL__nDoEnFnIuNlEl_ M_ANKoEn_nCuHlElC
K      _| O                     ^P
_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from In file included from ../src/s2/s2cell.hs2/s2region_term_indexer.cc::2475:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2region_term_indexer.h::21105:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2cell_id.h::3737:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/base/logging.h::2121:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/log/check.h456::371:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h::226450::5925::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

  450   | 226  |  v o i d  xM,a kxe,C hceocnksOtp Vcahlaure*S tarbisnlg_(nsotndn:u:lols)t
r      e| a                        ^m
& /usr/local/clang/include/absl/base/nullability.ho:s241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 v  o241i | d#*d eafbisnle_ naublslla_bnloen npu)l;l
       _| N                                                          ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l257
:      23| :                     ^ 
note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NuIn file included from ls2/s2region_coverer.ccl:a18b:
lIn file included from e../src/s2/s2region_coverer.h
:      31| :
                      ^In file included from 
../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2region_term_indexer.ccN:o75n:
nIn file included from u../src/s2/s2region_term_indexer.hl:l105
:
      In file included from | ../src/s2/s2cell_id.h                     ^:
37:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from /usr/local/clang/include/absl/log/check.hs2/s2region_coverer.cc::3718:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2region_coverer.h::2131:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2cell.h::27624::
13In file included from :../src/s2/base/logging.h :warning: 21type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37:
  In file included from 276/usr/local/clang/include/absl/log/internal/check_impl.h | :c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t457 :v1o:i dwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l450_:n25u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
le   450o | p e r a t o rx<,< (xs,t dc:o:nosstt rcehaamr&*, 
a      b| s            ^l
_n/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
oIn file included from ns2/s2region_term_indexer.ccn:u75l:
lIn file included from )../src/s2/s2region_term_indexer.h
:      105| :
                        ^In file included from 
../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
/usr/local/clang/include/absl/log/internal/check_op.h:  323241: | 46#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a323b | s l _fnroinennudl lv o_iNdo nAnbuslllF
o      r| m                     ^a
tFlush(StringifySink* absl_nonnull sink,
      |                                              ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2region_coverer.cc::24118::
22In file included from :../src/s2/s2region_coverer.h :note: 31expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2cell.h  :24124 | :
#In file included from d../src/s2/base/logging.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u458l:l1 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null  
458       | | A                     ^B
SL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.hIn file included from :s2/s2region_term_indexer.cc31::
75In file included from :
../src/s2/s2cell.hIn file included from :../src/s2/s2region_term_indexer.h24::
105In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2cell_id.h21::
37In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/logging.h37::
21In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/check.h21::
37/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 459/usr/local/clang/include/absl/log/internal/check_impl.h::121::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]428
:44/usr/local/clang/include/absl/log/internal/check_op.h:: 450warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  428 |   A450B | S L _ A T T RxI,B UxT,E _cRoEnTsUtR NcSh_aNrO*N NaUbLsLl _cnoonnsntu lclh)a
r      *|                          ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 M  a241k | e#CdheefciknOep Satbrsiln_gn(o
n      n| u                                           ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                        ^241
 | #define absl_nonnull _NoIn file included from ns2/s2region_coverer.ccn:u18l:
lIn file included from 
../src/s2/s2region_coverer.h      :| 31                     ^:

In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hs2/s2region_term_indexer.cc::2175:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2region_term_indexer.h460::1051:
:In file included from  ../src/s2/s2cell_id.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37
:
In file included from ../src/s2/base/logging.h:21  :
460In file included from  | /usr/local/clang/include/absl/log/check.hA:B37S:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hL:O21G:
_/usr/local/clang/include/absl/log/internal/check_op.hI:N429T:E31R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
DEFI  N429E | _ M A K ET_1C HvE1C,K _TO2P _vS2T,R IcNoGn_sEtX TcEhRaNr(*c oanbsstl _cnhoanrn*u lalb selx_pnrotnenxutl)l )A;B
S      L| _^A
TT/usr/local/clang/include/absl/log/internal/check_op.hR:I449B:U31T:E _note: Nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'O
INL  I449N | E ; 
e      x| t                              ^e
rn/usr/local/clang/include/absl/base/nullability.h :t241e:m22p:l anote: texpanded from macro 'absl_nonnull'e
 c  o241n | s#td ecfhianre*  aabbssll__nnoonnnnuullll  _MNaoknenCuhlelc
k      O| p                     ^S
tring(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/s2region_term_indexer.cc :a75b:
sIn file included from l../src/s2/s2region_term_indexer.h_:n105o:
nIn file included from n../src/s2/s2cell_id.hu:l37l:
 In file included from _../src/s2/base/logging.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                     ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:432In file included from :s2/s2region_coverer.cc13::18 :
In file included from warning: ../src/s2/s2region_coverer.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
In file included from ../src/s2/s2cell.h  :43224 | :
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from c/usr/local/clang/include/absl/log/check.hh:a37r:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n460o:n66n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Mak  e460C | hABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:eckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(               nnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
    \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
365   warning465s |  generatedA.
BSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inli/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shape_index_measures.cc -o s2/s2shape_index_measures.o
ne constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl( In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                  \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char*In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nuIn file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext)llable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noex c{e p t   { 
        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                                   ^  
241 | #define/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
null   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      In file included from | s2/s2region_union.cc                     ^:
18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrIn file included from us2/s2region_union.cce:I18m:
pIn file included from l../src/s2/s2region_union.h(:
26      :
| In file included from             ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/base/nullability.h37::
257In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h23::21 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/check_op.h
:41:
  In file included from 257/usr/local/clang/include/absl/log/internal/strip.h | :#26d:
e/usr/local/clang/include/absl/log/internal/log_message.hf:i306n:e3 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l306l | a b laeb s_lN_unlolnanbullel
       s| t                      ^d
::uniqueIn file included from _s2/s2region_term_indexer.ccp:t75r:
<In file included from L../src/s2/s2region_term_indexer.ho:g105M:
eIn file included from s../src/s2/s2cell_id.hs:a37g:
eIn file included from D../src/s2/base/logging.ha:t21a:
>In file included from  /usr/local/clang/include/absl/log/check.hd:a37t:
aIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.h;:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h  ^:
512:17/usr/local/clang/include/absl/base/nullability.h:: 241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'512
 |     241  |  #cdoenfsitn ec haabrs*l _anbosnln_unlull l_aNbolnen usl1l,
       c| o                     ^n
st char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
380 warnings generated.
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shape_index.cc -o s2/s2shape_index.o
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(sIn file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
td::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2region_term_indexer.cc241: | 75#:
dIn file included from e../src/s2/s2region_term_indexer.hf:i105n:
eIn file included from  ../src/s2/s2cell_id.ha:b37s:
lIn file included from _../src/s2/base/logging.hn:o22n:
nIn file included from u/usr/local/clang/include/absl/log/log.hl:l209 :
_In file included from N/usr/local/clang/include/absl/log/internal/log_impl.ho:n20n:
uIn file included from In file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.hls2/s2region_union.cc:
:63      18:
| :
/usr/local/clang/include/absl/log/internal/vlog_config.h                     ^In file included from :
../src/s2/s2region_union.h49::2637:
:In file included from  ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
:
In file included from /usr/local/clang/include/absl/log/log.h:209   :
49In file included from  | /usr/local/clang/include/absl/log/internal/log_impl.hi:n20t:
 In file included from R/usr/local/clang/include/absl/log/absl_vlog_is_on.he:g63i:
st/usr/local/clang/include/absl/log/internal/vlog_config.he:r133A:n37d:I nwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ialize  (133V | LiongtS iRteeg*i satbesrlA_nndoInnniutlila lvi)z;e
(      V| L                                    ^o
gSit/usr/local/clang/include/absl/base/nullability.he:*In file included from 241 s2/s2region_intersection.cc:a:22b17:s:
 lIn file included from note: _../src/s2/s2region_intersection.hexpanded from macro 'absl_nonnull'n:
o27  n:
n241In file included from u | ../src/s2/s2point.hl#:ld27 e:
vfIn file included from )i../src/s2/s2coder.hn;:e
23       :
a| In file included from b                                    ^/usr/local/clang/include/absl/status/status.hs
:l67_:
n/usr/local/clang/include/absl/base/nullability.hIn file included from o:n/usr/local/clang/include/absl/status/internal/status_internal.h241n:u:29l22:
l:In file included from   /usr/local/clang/include/absl/strings/cord.h_note: :expanded from macro 'absl_nonnull'N82
o:
nIn file included from n  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hu241:l | 23l#:

dIn file included from       e/usr/local/clang/include/absl/crc/crc32c.h| f:                     ^i32
n:
e/usr/local/clang/include/absl/strings/str_format.h :a503b:s20l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l503  | _ N oFnoIn file included from nrs2/s2region_term_indexer.ccmu:al75tl:

RIn file included from a      ../src/s2/s2region_term_indexer.hw| :S                     ^105i
:
nIn file included from k../src/s2/s2cell_id.h(:T37*:
 In file included from a../src/s2/base/logging.hb:s22l:
_In file included from n/usr/local/clang/include/absl/log/log.ho:n209n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl: 20r:
aIn file included from w/usr/local/clang/include/absl/log/absl_vlog_is_on.h): 63 :
//usr/local/clang/include/absl/log/internal/vlog_config.h/: 63N:O43L:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                    ^
   63 | /usr/local/clang/include/absl/base/nullability.h :241 :e22x:p lnote: iexpanded from macro 'absl_nonnull'c
it   241c | o#ndsetfeixnper  aVbLsIn file included from olgs2/s2region_union.cc_S:ni18ot:
nenIn file included from (u../src/s2/s2region_union.hcl:oln26 s:
_tNIn file included from  o../src/s2/base/logging.hcn:hna22ur:
l*lIn file included from  
/usr/local/clang/include/absl/log/log.ha      :b| 209s                     ^:
l
_In file included from n/usr/local/clang/include/absl/log/internal/log_impl.ho:n20n:
uIn file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.hl: 63f:
)/usr/local/clang/include/absl/log/internal/vlog_config.h
:      157| :                                          ^11
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
:22:   note: 157expanded from macro 'absl_nonnull' | 
VL  o241g | S#idteef*i naeb salb_snlu_lnloanbnluel lS e_tNVoMnonduullle
L      i| s                     ^t
HeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:26:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:In file included from 209s2/s2region_term_indexer.cc:
:In file included from 75/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 20../src/s2/s2region_term_indexer.h:
:In file included from 105/usr/local/clang/include/absl/log/absl_vlog_is_on.h:
:In file included from 63../src/s2/s2cell_id.h:
:/usr/local/clang/include/absl/log/internal/vlog_config.h37::
158In file included from :../src/s2/base/logging.h15::22 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/log.h
:209:
  In file included from 158/usr/local/clang/include/absl/log/internal/log_impl.h | : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.hV:L63o:
g/usr/local/clang/include/absl/log/internal/vlog_config.hS:i96t:e60*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_nu   l96l | a b lfer ive)n;d
       i| n              ^t
 l/usr/local/clang/include/absl/base/nullability.ho:g257_:i23n:t enote: rexpanded from macro 'absl_nullable'n
al  :257: | R#edgeifsitneer AanbdsIln_intuilallaibzlee( V_LNouglSliatbel*e 
a      b| s                      ^l
_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2region.cc  :44018 | :
iIn file included from n../src/s2/s2region.ht: 24F:
PIn file included from r../src/s2/s1angle.hi:n28t:
FIn file included from (../src/s2/s2point.hs:t24d:
:In file included from :/usr/local/clang/include/absl/hash/hash.hF:I89L:
EIn file included from */usr/local/clang/include/absl/hash/internal/hash.h :a79b:
sIn file included from l/usr/local/clang/include/absl/base/internal/endian.h_:n26onnul:
l /usr/local/clang/include/absl/base/internal/unaligned_access.ho:u39t:p45u:t ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst Form   a39t | Sipnelci<nAer gusi.n.t.1>6&_ tf oUrnmaalti,g
n      e| d                       ^L
oad/usr/local/clang/include/absl/base/nullability.h1:6241(:c22o:n snote: texpanded from macro 'absl_nonnull' 
vo  i241d | *# daebfsiln_en oanbnsull_ln opn)n u{l
l       | _                                            ^N
onnull
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* abIn file included from ss2/s2region.ccl:_18n:
oIn file included from n../src/s2/s2region.hn:u24l:
lIn file included from  ../src/s2/s1angle.ho:u28t:
pIn file included from u../src/s2/s2point.ht:,24 :
sIn file included from t/usr/local/clang/include/absl/hash/hash.hd::89::
sIn file included from i/usr/local/clang/include/absl/hash/internal/hash.hz:e79_:
tIn file included from  /usr/local/clang/include/absl/base/internal/endian.hs:i26z:
e/usr/local/clang/include/absl/base/internal/unaligned_access.h,:
45      :| 45                   ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:    note: 45expanded from macro 'absl_nonnull' | 
in  l241i | n#ed eufiinnte3 2a_bts lU_nnaolningunleld L_oNaodn3n2u(lclo
n      s| t                     ^ 
void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:In file included from 20s2/s2region.cc:: 18:
warning: In file included from ../src/s2/s2region.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
24:
In file included from ../src/s2/s1angle.h:  28503:
 | In file included from  ../src/s2/s2point.h :F24o:
rIn file included from m/usr/local/clang/include/absl/hash/hash.ha:t89R:
aIn file included from w/usr/local/clang/include/absl/hash/internal/hash.hS:i79n:
kIn file included from (/usr/local/clang/include/absl/base/internal/endian.hT:*26 :
a/usr/local/clang/include/absl/base/internal/unaligned_access.hb:s51l:_45n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll    r51a | wi)n l i/n/e  NuOiLnItN6T4
_      t|                     ^U
na/usr/local/clang/include/absl/base/nullability.hl:i241g:n22e:d Lnote: oexpanded from macro 'absl_nonnull'a
d  241 | #def6i4n(ec oanbsstl _vnooindn*u lalb s_lN_onnonnunlull
l       | p                     ^)
 {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:37:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull In file included from ps2/s2r2rect.cc): 18{:

In file included from       ../src/s2/s2r2rect.h| :                                   ^29
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2coder.h
:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s82l:
_In file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/crc/crc32c.hl: 32_:
No/usr/local/clang/include/absl/strings/str_format.hn:n860u:l43l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  860 |   friend void AbslFormatFlush(FormatSink*In file included from  s2/s2region.cca:b18s:
In file included from l../src/s2/s2region.h_:n24o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from s../src/s2/s2point.hi:n24k:
,In file included from 
/usr/local/clang/include/absl/hash/hash.h      :| 89                                          ^:

In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/internal/endian.h241::18022::27 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #180d | eifnilnien ea bvsoli_dn oSntnourlel6 4_(Nvoonindu*l la
b      s| l                     ^_
nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2r2rect.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2r2rect.h241: | 29#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
82      :
| In file included from                      ^/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | In file included from ss2/s2region_coverer.cci:z18e:
_In file included from t../src/s2/s2region_coverer.h :G31e:
tIn file included from E../src/s2/s2cell.hs:t25i:
mIn file included from a../src/s2/util/coding/coder.ht:e40d:
MIn file included from e../src/s2/util/coding/varint.hm:o44r:
yIn file included from U../src/s2/util/bits/bits.hs:a21g:
eIn file included from (/usr/local/clang/include/absl/numeric/bits.hc:o52n:
st/usr/local/clang/include/absl/base/internal/endian.h :C254o:r27d:R ewarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l254_ | nionnlniunlel  vroeipd) ;S
t      o| r                                              ^e
16(v/usr/local/clang/include/absl/base/nullability.ho:i241d:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ipn,e  uaibnstl1_6n_otn nvu)l l{ 
_      N| o                          ^n
nul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2region_intersection.cco:n17n:
uIn file included from l../src/s2/s2region_intersection.hl:
27      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const In file included from Cs2/s2region_coverer.cco:r18d:
RIn file included from e../src/s2/s2region_coverer.hp:*31 :
aIn file included from b../src/s2/s2cell.hs:l25_:
nIn file included from o../src/s2/util/coding/coder.hn:n40u:
lIn file included from l../src/s2/util/coding/varint.h :r44e:
pIn file included from )../src/s2/util/bits/bits.h;:
21      :
| In file included from                                                 ^/usr/local/clang/include/absl/numeric/bits.h
:52:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/internal/endian.h::241258::2236::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #258d | eifnilnien ea busiln_tn3o2n_ntu lLlo a_dN3o2n(ncuolnls
t       | v                     ^o
id* absl_nonnull pIn file included from )s2/s2region_intersection.cc :{17
:
      In file included from | ../src/s2/s2region_intersection.h                                   ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e86 :
a/usr/local/clang/include/absl/strings/cord_analysis.hb:s56l:_56n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _   N56o | nsniuzlel_
t       | G                     ^e
tEstimatedFairShareMemoryUsage(const CordRep* absl_nIn file included from os2/s2region_coverer.ccn:n18u:
lIn file included from l../src/s2/s2region_coverer.h :r31e:
pIn file included from )../src/s2/s2cell.h;:
25      :
| In file included from                                                        ^../src/s2/util/coding/coder.h
:40:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/util/coding/varint.h241::4422:
:In file included from  ../src/s2/util/bits/bits.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/numeric/bits.h:  52241:
 | /usr/local/clang/include/absl/base/internal/endian.h#:d262e:f27i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _262n | oinnnluilnle  _vNooindn uSltlo
r      e| 3                     ^2
(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:25:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define abslIn file included from _s2/s2r2rect.ccn:u18l:
lIn file included from a../src/s2/s2r2rect.hb:i29l:
iIn file included from t../src/s2/s1angle.hy:_28u:
nIn file included from k../src/s2/s2point.hn:o27w:
nIn file included from  ../src/s2/s2coder.h_:N23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h_:u67n:
sIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.he:c29i:
fIn file included from i/usr/local/clang/include/absl/strings/cord.he:d94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                 ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 489s2/s2region_intersection.cc | : 17 :
 In file included from  ../src/s2/s2region_intersection.h : 27v:
oIn file included from i../src/s2/s2point.hd: 27(:
*In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
iIn file included from n/usr/local/clang/include/absl/strings/cord.hv:a94r:
iIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hn:t31):
(/usr/local/clang/include/absl/synchronization/mutex.hv:o802i:d19*:  awarning: btype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s
l_n  u802l | l a b i l i t y _ u n k nvoowind)*, 
a      b| s             ^l
_nu/usr/local/clang/include/absl/base/nullability.hl:l257a:b23i:l inote: texpanded from macro 'absl_nullable'y
_u  n257k | n#odwenf ianreg )a;b
s      l| _                  ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a289b:l34e:  _note: Nexpanded from macro 'absl_nullability_unknown'u
lla  b289l | e#
d      e| f                      ^i
ne abslIn file included from _s2/s2r2rect.ccn:u18l:
lIn file included from a../src/s2/s2r2rect.hb:i29l:
iIn file included from t../src/s2/s1angle.hy:_28u:
nIn file included from k../src/s2/s2point.hn:o27w:
nIn file included from  ../src/s2/s2coder.h_:N23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h_:u67n:
sIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.he:c29i:
fIn file included from i/usr/local/clang/include/absl/strings/cord.he:d94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                 ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void In file included from (s2/s2region_intersection.cc*:a17b:
sIn file included from l../src/s2/s2region_intersection.h_:n27u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hi:n23v:
aIn file included from r/usr/local/clang/include/absl/status/status.hi:a67n:
tIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h(:v29o:
iIn file included from d/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l814a:b20i:l iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
_unk  n814o | w n )C,o
n      d| i                                            ^t
io/usr/local/clang/include/absl/base/nullability.hn:(289b:o34o:l  note: (expanded from macro 'absl_nullability_unknown'*
abs  l289_ | n#odnenfuilnle  faubnscl)_(nTu*l laabbsill_intuyl_luanbkinloiwn _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* abtsl_nyo_nunnuklnlo wmnu),,

            | |                                        ^                   ^

/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2region_intersection.cc28::
17In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2region_intersection.h27::
27In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2point.h23::
27In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2coder.h67::
23In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/status/status.h29::
67In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h94::
29In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/strings/cord.h31::
94:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h550::3164:
: /usr/local/clang/include/absl/synchronization/mutex.h:warning: 814type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
42: warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]550
 |       814  |      C o n d i t i o n ( b o o l   ( * a b s l _ n o nbnauslel_ ifnutnecr)n(aTl*: :aPbesrlT_hnruelaldaSbyinlciht*y _aubnskln_onwonn)n,u
l      l|                                           ^w
);/usr/local/clang/include/absl/base/nullability.h
:      289| :                                                               ^34
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullability_unknown'241
:22:   289note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naublslla_bniolnintuyl_lu n_kNnoonwnnu l_lN
u      l| l                     ^_
unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2region_intersection.ccIn file included from :../src/s2/s2coder.h17::
23In file included from :
../src/s2/s2region_intersection.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h27::
29In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/strings/cord.h23::
94In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h67::
31In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/synchronization/mutex.h29::
551In file included from :/usr/local/clang/include/absl/strings/cord.h40::94 :
In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:  815551: | 16 :  swarning: ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
tic   815b | o o l   D e c r e m e n tTS*y nacbhsSle_mn(uMlultaebxi*l iatbys_lu_nnkonnonwunl la rmgu),;

            | |                                        ^               ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241289::2234::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullability_unknown'

  241   | 289# | d#edfeifnien ea basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
 _Null_unsIn file included from ps2/s2r2rect.cce:c18i:
fIn file included from i../src/s2/s2r2rect.he:d29
:
      In file included from | ../src/s2/s1angle.h                                 ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 | In file included from  s2/s2region_intersection.cc : 17 :
 In file included from  ../src/s2/s2region_intersection.h : 27 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :b94a:
sIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h_:i31n:
t/usr/local/clang/include/absl/synchronization/mutex.he:r830n:a14l:: :warning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rThr  e830a | d S y n c h *b oaobls l(_*naobnsnlu_lnlo nwn,u
l      l|                                                                 ^f
un/usr/local/clang/include/absl/base/nullability.hc:)241(:T22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebfiilniet ya_busnlk_nnoownnn)u,l
l       | _             ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnullIn file included from  s2/s2r2rect.cc_:N18o:
nIn file included from n../src/s2/s2r2rect.hu:l29l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2region_intersection.ccIn file included from :/usr/local/clang/include/absl/status/status.h17::
67In file included from :
../src/s2/s2region_intersection.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h27::
29In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/strings/cord.h27::
94In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h23::
31In file included from :
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/synchronization/mutex.h67::
556In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h38::29 :
In file included from warning: /usr/local/clang/include/absl/strings/cord.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :55631 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :v830o:i36d:  Lwarning: otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]c
kSl  o830w | L o o p ( S ybnocohlW a(i*taPbasrla_mnso*n naublsll _fnuonncn)u(lTl*  waabistlp_,n uilnlta bfillaigtsy)_;u
n      k| n                                     ^o
wn/usr/local/clang/include/absl/base/nullability.h):,241
:      22| :                                   ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:289:  34241: |  #note: dexpanded from macro 'absl_nullability_unknown'e
fi  n289e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbuillli
t      y| _                     ^u
nknown _Null_unspecified
In file included from       s2/s2r2rect.cc| :                                 ^18
:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:In file included from 35s2/s2region_intersection.cc:: 17:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2region_intersection.h
:27:
In file included from   ../src/s2/s2point.h558: | 27 :
 In file included from b../src/s2/s2coder.ho:o23l:
 In file included from L/usr/local/clang/include/absl/status/status.ho:c67k:
SIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ho:w29W:
iIn file included from t/usr/local/clang/include/absl/strings/cord.hh:D94e:
aIn file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.hl:i31n:
e/usr/local/clang/include/absl/synchronization/mutex.h(:M831u:H46o:w  warning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]b
sl_  n831o | n n u l l   htoywp,e
n      a| m                                  ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::t ynote: pexpanded from macro 'absl_nonnull'e
_i  d241e | n#tdietfyi<nTe> :a:btsylp_en*o nanbuslll_ n_uNlolnanbuillli
t      y| _                     ^u
nknown
      |                                              ^
In file included from s2/s2r2rect.cc/usr/local/clang/include/absl/base/nullability.h::18289:
:In file included from 34../src/s2/s2r2rect.h:: 29:
note: In file included from expanded from macro 'absl_nullability_unknown'../src/s2/s1angle.h
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                     ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                         f  i n ec oanbsstl _Cnoonndniutlilo n_*N oanbnsull_ln
u      l| l                     ^a
ble cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2region_union.cc#:In file included from d18s2/s2region_intersection.cce:
:fIn file included from 17i../src/s2/s2region_union.h:
n:In file included from e28../src/s2/s2region_intersection.h :
:aIn file included from 27b../src/s2/s2point.h:
s:In file included from l24../src/s2/s2point.h_:
:nIn file included from 27u/usr/local/clang/include/absl/hash/hash.h:
l:lIn file included from a89../src/s2/s2coder.hb:
:lIn file included from 23e/usr/local/clang/include/absl/hash/internal/hash.h:
 :In file included from _79/usr/local/clang/include/absl/status/status.hN:
:uIn file included from 67l/usr/local/clang/include/absl/base/internal/endian.h:
l:In file included from a26/usr/local/clang/include/absl/status/internal/status_internal.hb:
:l29/usr/local/clang/include/absl/base/internal/unaligned_access.he:
:
In file included from 45      /usr/local/clang/include/absl/strings/cord.h:| :45                      ^94:
:
 In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:   85145: | 45i:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e ui  n851t | 3 2 _ t   U nIn file included from bas2/s2r2rect.ccol:oi18gl:
n In file included from e(../src/s2/s2r2rect.hda:bL29so:
laIn file included from :d../src/s2/s1angle.h:3:t228y(:
pcIn file included from eo../src/s2/s2point.h_n:is27dt:
e In file included from nv../src/s2/s2coder.hto:ii23td:
y*In file included from < /usr/local/clang/include/absl/status/status.hTa:>b67:s:
:lIn file included from _t/usr/local/clang/include/absl/status/internal/status_internal.hny:op29ne:
n:In file included from u:/usr/local/clang/include/absl/strings/cord.hl*:l 94 a:
pbIn file included from s)/usr/local/clang/include/absl/strings/internal/cordz_info.hl :_{31n
:
o      /usr/local/clang/include/absl/synchronization/mutex.hn| :n                                            ^562u
:l23l/usr/local/clang/include/absl/base/nullability.h: : m241warning: e:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t22
h:o d  note: )562expanded from macro 'absl_nonnull'( | 
) 
         v241| o |                                             ^i#
dd /usr/local/clang/include/absl/base/nullability.hLe:of241ci:kn22Se:l  oawnote: (bexpanded from macro 'absl_nonnull'Ms
ul  _H241no | wo# ndanebufslilnl_en  oa_nbNnsoulln_lnn uohlnonlwu,l
 lc       o_| nNs                     ^otn
 nCuolnld
i      t| i                     ^o
n* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2region_intersection.cc241: | 17#:
dIn file included from e../src/s2/s2region_intersection.hf:i27n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from In file included from Ns2/s2region_union.cc/usr/local/clang/include/absl/status/internal/status_internal.ho::n1829n:
:
uIn file included from In file included from l../src/s2/s2region_union.h/usr/local/clang/include/absl/strings/cord.hl::
2894      :
:
| In file included from In file included from                      ^../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/cordz_info.h
::2431:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/hash/hash.h::85589::
In file included from 34In file included from s2/s2r2rect.cc:/usr/local/clang/include/absl/hash/internal/hash.h: :18warning: 79:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
In file included from 
In file included from ../src/s2/s2r2rect.h/usr/local/clang/include/absl/base/internal/endian.h::  2926855:
:
 | In file included from  /usr/local/clang/include/absl/base/internal/unaligned_access.h../src/s2/s1angle.h ::e5128x::
p45In file included from l:../src/s2/s2point.hi :cwarning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i:

tIn file included from  ../src/s2/s2coder.hC:o   23n51:
d | In file included from ii/usr/local/clang/include/absl/status/status.htn:il67oi:
nnIn file included from (e/usr/local/clang/include/absl/status/internal/status_internal.hc :ou29in:
nsIn file included from tt/usr/local/clang/include/absl/strings/cord.h6 :4b_94ot:
 oIn file included from Ul/usr/local/clang/include/absl/strings/internal/cordz_info.hn*: a31al:
bi/usr/local/clang/include/absl/synchronization/mutex.hsg:ln562_e:nd58oL:no nawarning: udtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l6
l4 (c  oc562no | d n)s ;tv
o       iv| d                                 ^o 
Lio/usr/local/clang/include/absl/base/nullability.hdc:k*241S :la22bo:ws (lnote: Mexpanded from macro 'absl_nonnull'_un
Ho  on241wn |  u#aldbelsfli _nnpeo )nan bus{lll
_       nh| oo                                            ^nw
n,u lc/usr/local/clang/include/absl/base/nullability.hlo :n_s241Nt:o n22Cno:un ldlnote: i
texpanded from macro 'absl_nonnull'      i
| o                     ^  n
241* |  #adbesfli_nneu lalbasbll_en ocnonnudl,l
       _| N                                                         ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l:
23      :|                       ^
In file included from note: s2/s2region_intersection.ccexpanded from macro 'absl_nullable':
17:
In file included from   ../src/s2/s2region_intersection.h257: | 27#:
dIn file included from e../src/s2/s2point.hf:i27n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:l29e:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:u94l:
lIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:l31e:

      /usr/local/clang/include/absl/synchronization/mutex.h| :                      ^886
:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   expIn file included from ls2/s2region_union.cci:c18i:
tIn file included from  ../src/s2/s2region_union.hC:o28In file included from n:
s2/s2r2rect.ccdIn file included from :i../src/s2/s2point.h18t::
i24In file included from o:
../src/s2/s2r2rect.hnIn file included from :(/usr/local/clang/include/absl/hash/hash.h29c::
o89In file included from n:
../src/s2/s1angle.hsIn file included from :t/usr/local/clang/include/absl/hash/internal/hash.h28 ::
T79In file included from *:
../src/s2/s2point.h In file included from :a/usr/local/clang/include/absl/base/internal/endian.h27b::
s26In file included from l:
../src/s2/s2coder.h_/usr/local/clang/include/absl/base/internal/unaligned_access.h:n:23o57:
n:In file included from n36/usr/local/clang/include/absl/status/status.hu::l 67l:
 warning: In file included from otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.hb
:j29):

   In file included from       57/usr/local/clang/include/absl/strings/cord.h|  | :                              ^i94
n:
l/usr/local/clang/include/absl/base/nullability.hIn file included from i:/usr/local/clang/include/absl/strings/internal/cordz_info.hn241:e:31 22:
v:/usr/local/clang/include/absl/synchronization/mutex.ho :inote: 565dexpanded from macro 'absl_nonnull': 
36U:  n 241awarning:  | ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#i
dgenfe  id565nS | e t  oavbroseild1_ 6nUo(nnlvnouocliklSd l_*oNw o(anSnbyusnlcllh
_W      an| i                     ^ot
nPnaurlalm sp*,  aubisnlt_1n6u_ltl avb)l e{ 
w      a| i                                   ^t
p)/usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Anote: Texpanded from macro 'absl_nonnull'T
RI  B241U | T#Ed_eCfOiLnDe; 
a      b| s                                   ^lIn file included from 
_s2/s2region_intersection.cc/usr/local/clang/include/absl/base/nullability.hn::o17257n:
:nIn file included from 23u../src/s2/s2region_intersection.h:l: l27note:  :
expanded from macro 'absl_nullable'_In file included from 
N../src/s2/s2point.h  o:257n27 | n:
#uIn file included from dl../src/s2/s2coder.hel:f
23i      :
n| In file included from e                     ^/usr/local/clang/include/absl/status/status.h 
:a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94l:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h_:N31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:a896b:l31e:
       |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from warning: /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
578:45:   warning: 896type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  e  x578p | l i cvioti dC oBnldoictki(obna(sceo_nisntt eTr*n aalb:s:lP_enroTnhnruelald Soybnjc)h
*       | a                              ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  s)expanded from macro 'absl_nonnull';

      |                                               ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2region_intersection.cc::58017::
34In file included from :../src/s2/s2region_intersection.h :27warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from   ../src/s2/s2coder.h580: | 23 :
 In file included from b/usr/local/clang/include/absl/status/status.ha:s67e:
_In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:t29e:
rIn file included from n/usr/local/clang/include/absl/strings/cord.ha:l94::
:In file included from P/usr/local/clang/include/absl/strings/internal/cordz_info.he:r31T:
h/usr/local/clang/include/absl/synchronization/mutex.hr:e922a:d48S:y nwarning: ctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]h
* a  b922s | l _ nsutlaltaibcl eb oWoalk eGuupa(r
a      n| t                                 ^e
ed/usr/local/clang/include/absl/base/nullability.hE:q257u:a23l:( cnote: oexpanded from macro 'absl_nullable'n
st   257C | o#nddeiftiinoen *a basbls_ln_unlullalbalbel e_ Nau,l
l      a| b                                               ^l
e
      /usr/local/clang/include/absl/base/nullability.h| :                      ^257
:23: note: expanded from macro 'absl_nullable'
In file included from s2/s2r2rect.cc  :25718 | :
#In file included from d../src/s2/s2r2rect.he:f29i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from  /usr/local/clang/include/absl/status/status.h_:N67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:b29l:
eIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                      ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2region_intersection.cc:17:
  In file included from 581../src/s2/s2region_intersection.h | : 27 :
 In file included from  ../src/s2/s2point.h : 27b:
aIn file included from s../src/s2/s2coder.he:_23i:
nIn file included from t/usr/local/clang/include/absl/status/status.he:r67n:
aIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h:::29P:
eIn file included from r/usr/local/clang/include/absl/strings/cord.hT:h94r:
eIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hd:S31y:
n/usr/local/clang/include/absl/synchronization/mutex.hc:h923*: 48a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n923u | l l   w ) ; 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f icnoen satb sClo_nndointniuolnl*  _aNbosnln_unlull
l      a| b                     ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:In file included from 36s2/s2r2rect.cc:: 18:
warning: In file included from ../src/s2/s2r2rect.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h   :6127 | :
iIn file included from n../src/s2/s2coder.hl:i23n:
eIn file included from  /usr/local/clang/include/absl/status/status.hv:o67i:
dIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hU:n29a:
lIn file included from i/usr/local/clang/include/absl/strings/cord.hg:n94e:
dIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.ht:o31r:
e/usr/local/clang/include/absl/synchronization/mutex.h3:2585(:v20o:i dwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _585n | o n nvuolild  pT,r aunisn(tM3u2H_otw  va)b s{l
_      n| o                                   ^n
null/usr/local/clang/include/absl/base/nullability.h :h241o:w22):;  note:  expanded from macro 'absl_nonnull'/
/   u241s | e#dd effoirn eC oanbdsVla_rn-o>nMnuutlelx  _tNroannnsuflelr

            | |                      ^                   ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2region_union.cc29::
18In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2region_union.h94::
28In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2point.h31::
24:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/hash/hash.h586::8943:
:In file included from  /usr/local/clang/include/absl/hash/internal/hash.h:warning: 79type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
  586/usr/local/clang/include/absl/base/internal/unaligned_access.h | : 65 :v36o:i dwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
er(b   a65s | ei_nilnitneer nvaoli:d: PUenraTlhirgenaeddSSytnocrhe*6 4a(bvsoli_dn*o nanbuslll_
n      o| n                                          ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241p:,22 :u inote: nexpanded from macro 'absl_nonnull't
64  _241t |  #vd)e f{i
n      e|                                     ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _NonnulIn file included from ls2/s2r2rect.cc
:      18| :
                     ^In file included from 
../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
le b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2r2rect.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2r2rect.h31::
29:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s1angle.h956::2852:
:In file included from  ../src/s2/s2point.h:warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23:
  In file included from 956/usr/local/clang/include/absl/status/status.h | : 67 :
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.ha:t29i:
cIn file included from  /usr/local/clang/include/absl/strings/cord.hb:o94o:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hC:a31s:
tA/usr/local/clang/include/absl/synchronization/mutex.hn:d624C:a68l:l Fwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ction  (624c | o n setx pCloincdiitt iMount*e xaLbosclk_(nMountneuxl&l  mcu) ;A
B      S| L                                                   ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Aexpanded from macro 'absl_nonnull'T
TR  I241B | U#TdEe_fCiAnPeT UaRbEsDl__BnYo(ntnhuilsl) )_
N      o| n                                                                   ^~~~n
ull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 635/usr/local/clang/include/absl/status/internal/status_internal.h::2929::
 In file included from /usr/local/clang/include/absl/strings/cord.hwarning: :94type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h635: | 958 : 50e:x pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
cit   958M | u t esxtLaotcikc( Mbuotoelx *C aasbtsAln_dnCoanlnluMlelt hmoud)( cAoBnSsLt_ ECXoCnLdUiStIiVoEn_*L OaCbKs_lF_UnNoCnTnIuOlNl( mcu));

            | |                             ^                                                 ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NoNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961In file included from :s2/s2r2rect.cc34::18 :
In file included from warning: ../src/s2/s2r2rect.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
In file included from ../src/s2/s1angle.h:  28961:
 | In file included from  ../src/s2/s2point.h :s27t:
aIn file included from t../src/s2/s2coder.hi:c23 :
bIn file included from o/usr/local/clang/include/absl/status/status.ho:l67 :
CIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl:l29B:
yIn file included from R/usr/local/clang/include/absl/strings/cord.he:f94(:
cIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:s31t:
 /usr/local/clang/include/absl/synchronization/mutex.hT:* 641a:b68s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nnull   s641e | l f )e x{p
l      i| c                                 ^i
t /usr/local/clang/include/absl/base/nullability.hM:u241t:e22x:L onote: cexpanded from macro 'absl_nonnull'k
(M  u241t | e#xd&e fmiun eA BaSbLs_lI_NnToEnRnNuAlLl_ A_TNToRnInBuUlTlE
_      C| A                     ^P
TURED_BY(this),
      |                                                                    ^~~~
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h649::3129:
: /usr/local/clang/include/absl/synchronization/mutex.hwarning: :975type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]649
 |     e975x | p l iicnilti nMeu tveoxiLdo cRke(aMduCtaelxl*b aacbks(lT_*n oanbnsull_ln omnun,u lclo ncsatl lCboancdki)t icoonn&s tc o{n
d      )| 
                              ^      
|                             ^
/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note:   expanded from macro 'absl_nonnull'241
 | #de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNALIn file included from _s2/s2region_intersection.ccA:T17T:
RIn file included from I../src/s2/s2region_intersection.hB:U27T:
EIn file included from _../src/s2/s2point.hC:A27P:
TIn file included from U../src/s2/s2coder.hR:E23D:
_In file included from B/usr/local/clang/include/absl/status/status.hY:(67t:
hIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hs:)29):

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                                                                         ^~~~94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl/usr/local/clang/include/absl/synchronization/mutex.h_:n678o:n35n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
mu)   {678
 |        |                     ^e
xp/usr/local/clang/include/absl/base/nullability.hl:i241c:i22t:  Rnote: eexpanded from macro 'absl_nonnull'a
de  r241M | u#tdeexfLioncek (aMbustle_xn*o nanbuslll_ n_oNnonnunlull lm
u      )|                       ^A
BSL_SHARED_LOCK_FUNCTIONIn file included from (s2/s2region_intersection.ccm:u17):

In file included from       ../src/s2/s2region_intersection.h| :                                  ^27
:
In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n1050o:n31n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Non n1050u | l l 
b      o| o                     ^l
 WaitWithTimeout(Mutex* absl_nonnull mIn file included from us2/s2r2rect.cc,: 18a:
bIn file included from s../src/s2/s2r2rect.hl::29::
DIn file included from u../src/s2/s1angle.hr:a28t:
iIn file included from o../src/s2/s2point.hn: 27t:
iIn file included from m../src/s2/s2coder.he:o23u:
tIn file included from )/usr/local/clang/include/absl/status/status.h :{67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                              ^:
29:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/synchronization/mutex.h:681  :24174 | :# dwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]f
ine a  b681s | l _ neoxnpnluilcli t_ NRoenanduelrlM
u      t| e                     ^x
Lock(Mutex& mu ABSL_INTERNIn file included from As2/s2region_intersection.ccL:_17A:
TIn file included from T../src/s2/s2region_intersection.hR:I27B:
UIn file included from T../src/s2/s2point.hE:_27C:
AIn file included from P../src/s2/s2coder.hT:U23R:
EIn file included from D/usr/local/clang/include/absl/status/status.h_:B67Y:
(In file included from t/usr/local/clang/include/absl/status/internal/status_internal.hh:i29s:
)In file included from ,/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                                                         ^~~~In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadl/usr/local/clang/include/absl/synchronization/mutex.hi:n689e:(35M:u twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
* ab  s689l | _ n oenxnpullilc imtu ,R eaabdselr:M:uTtiemxeL odceka(dMluitneex)*  {a
b      sl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
|                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2r2rect.ccf:i18n:
eIn file included from  ../src/s2/s2r2rect.ha:b29s:
lIn file included from ../src/s2/s1angle.h:28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23_:
NIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he:
29      :
| In file included from                       ^/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2region_intersection.cc710: | 17 :
 In file included from e../src/s2/s2region_intersection.hx:p27l:
iIn file included from c../src/s2/s2point.hi:t27 :
WIn file included from r../src/s2/s2coder.hi:t23e:
rIn file included from M/usr/local/clang/include/absl/status/status.hu:t67e:
xIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.ho:c29k:
(In file included from M/usr/local/clang/include/absl/strings/cord.hu:t94e:
xIn file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h :m31u:
 /usr/local/clang/include/absl/synchronization/mutex.hA:B1091S:L26_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA L1091_ | A T TbRoIoBlU TWEa_iCtACPoTmUmRoEnD(_MBuYt(etxh*i sa)b)s
l      _| n                                                                         ^~~~o
nnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define ab/usr/local/clang/include/absl/synchronization/mutex.hs:l718_:n35o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _N  o718n | n u lelx
p      l| i                     ^c
it WriterMutexLock(MutIn file included from es2/s2region_intersection.ccx:*17 :
aIn file included from b../src/s2/s2region_intersection.hs:l27_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :m23u:
)In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                  ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2294::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
/usr/local/clang/include/absl/synchronization/mutex.h  :2411093 | :#46d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a b1093s | l _ nvoonindu lRle m_oNvoen(nbualsle
_      i| n                     ^t
ernal::PerThreadSynch* absl_nonnull s);
      In file included from | s2/s2r2rect.cc                                             ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2r2rect.h::24129::
22In file included from :../src/s2/s1angle.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n722u:l74l:
       | warning:                      ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  722 |   explicit WrIn file included from is2/s2region_union.cct:e18r:
MIn file included from u../src/s2/s2region_union.ht:e28x:
LIn file included from o../src/s2/s2point.hc:k24(:
MIn file included from u/usr/local/clang/include/absl/hash/hash.ht:e89x:
&In file included from  /usr/local/clang/include/absl/hash/internal/hash.hm:u79 :
A/usr/local/clang/include/absl/base/internal/endian.hB:S250L:_36I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL  _250A | TiTnRlIiBnUeT Eu_iCnAtP1T6U_RtE DL_oBaYd(1t6h(icso)n,s
t       | v                                                                         ^~~~o
id* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de/usr/local/clang/include/absl/synchronization/mutex.hf:i731n:e35 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n731u | l l  e_xNpolnincuiltl 
W      r| i                     ^t
erMutexLock(Mutex* absl_nIn file included from os2/s2region_intersection.ccn:n17u:
lIn file included from l../src/s2/s2region_intersection.h :m27u:
,In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :C23In file included from o:
s2/s2region_union.ccnIn file included from :d/usr/local/clang/include/absl/status/status.h18i::
t67In file included from i:
../src/s2/s2region_union.hoIn file included from :n/usr/local/clang/include/absl/status/internal/status_internal.h28&::
 29In file included from c:
../src/s2/s2point.hoIn file included from :n/usr/local/clang/include/absl/strings/cord.h24d::
)94In file included from 
:
/usr/local/clang/include/absl/hash/hash.h      In file included from :| /usr/local/clang/include/absl/strings/internal/cordz_info.h89                                  ^::

31In file included from :
/usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h:::792411109:
::22/usr/local/clang/include/absl/base/internal/endian.h34::: 254 note: :warning: expanded from macro 'absl_nonnull'27type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
:
   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] |  
#1109d | e   f 254ie | nxiepn llaiibcnsielt _ vnMoouintdne uxSlLtloo cr_keNM1oa6ny(nbvueol(ilMd
u*      t | ea                     ^xb
*s la_bnsoln_nnuullll apb,l eu imnut)1
6      _| t                                 ^ 
v)/usr/local/clang/include/absl/base/nullability.h :{257
:      23| :                          ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from 31s2/s2region_union.cc:
:18/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1117../src/s2/s2region_union.h::3428::
 In file included from ../src/s2/s2point.hwarning: :24type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from  /usr/local/clang/include/absl/hash/internal/hash.h1117: | 79 :
 /usr/local/clang/include/absl/base/internal/endian.he:x258p:l36i:c iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Mut  e258x | LionclkiMnaey buei(nMtu3t2e_xt*  Laobasdl3_2n(uconst void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2r2rect.ccb:s18l:
_In file included from n../src/s2/s2r2rect.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*abslIn file included from _s2/s2region_union.ccn:o18n:
nIn file included from u../src/s2/s2region_union.hl:l28 :
fIn file included from u../src/s2/s2point.hn:c24):
(In file included from v/usr/local/clang/include/absl/hash/hash.ho:i89d:
*In file included from  /usr/local/clang/include/absl/hash/internal/hash.ha:b79s:
l/usr/local/clang/include/absl/base/internal/endian.h_:n262u:l27l:a bwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ity  _262u | niknnloiwnne) ,v
o      i| d                   ^ 
St/usr/local/clang/include/absl/base/nullability.ho:r241e:3222:( vnote: oexpanded from macro 'absl_nonnull'i
d*   241a | b#sdle_fnionnen ualbls lp_,n ouninnutl3l2 __tN ovn)n u{l
l      
|                                 ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2r2rect.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2r2rect.h241: | 29#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:
94      :
| In file included from                      ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absIn file included from ls2/s2region_union.cc_:n18u:
lIn file included from l../src/s2/s2region_union.ha:b28i:
lIn file included from i../src/s2/s2point.ht:y24_:
uIn file included from n/usr/local/clang/include/absl/hash/hash.hk:n89o:
wIn file included from n/usr/local/clang/include/absl/hash/internal/hash.h):,79
:
      | /usr/local/clang/include/absl/base/internal/endian.h                                            ^:
266:36/usr/local/clang/include/absl/base/nullability.h:: 289:warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nullability_unknown'  
266 | i  n289l | i#ndee fuiinnet 6a4b_stl _Lnoualdl6a4b(iclointsyt_ uvnokindo*w na b_sNlu_lnlo_nunnuslple cpi)f i{e
d
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:l22: note: lexpanded from macro 'absl_nonnull'a
ble   m241u | ,# dceofnisnte  Caobnsdli_tnioonnn&u lclo n_dN)o
n      n| u                                 ^l
l
      |                      ^/usr/local/clang/include/absl/base/nullability.h
:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inIn file included from ls2/s2region_intersection.cci:n17e:
 In file included from v../src/s2/s2region_intersection.ho:i27d:
 In file included from S../src/s2/s2point.ht:o27r:
eIn file included from 6../src/s2/s2coder.h4:(23v:
oIn file included from i/usr/local/clang/include/absl/status/status.hd:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :p31,:
 /usr/local/clang/include/absl/synchronization/mutex.hu:i1132n:t106:4 _warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
v)  1132{ | 
        | M                          ^u
tex/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#dee fcionnes ta bmsul__;n
o      n| n         ^u
ll/usr/local/clang/include/absl/base/nullability.h :_257N:o23n:n unote: lexpanded from macro 'absl_nullable'l

      |                        ^257
 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from In file included from s2/s2r2rect.cc../src/s2/s2region_intersection.h::1827:
:
In file included from In file included from ../src/s2/s2r2rect.h../src/s2/s2point.h::2927:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2coder.h::2823:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2767:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::2329:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/cord.h::6794:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2931:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/synchronization/mutex.h::941212:
:In file included from 52/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
851:45:  warning: 1212type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
bool   851C | o n d i t i obno:o:lC a(satbAsnld:C:atlylpMee_tihdoedn(tciotnys<tT >C:o:ntdyiptei:o:n**  aabbssll__nnoonnnnuullll  mce)t h{o
d      )| (                                                   ^)

      | /usr/local/clang/include/absl/base/nullability.h                                            ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from 855s2/s2region_intersection.cc::3417::
 In file included from ../src/s2/s2region_intersection.hwarning: :27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27:
  In file included from 855../src/s2/s2coder.h | : 23 :
eIn file included from x/usr/local/clang/include/absl/status/status.hp:l67i:
cIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.ht: 29C:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hd:i94t:
iIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:(31c:
o/usr/local/clang/include/absl/synchronization/mutex.hn:s1221t: 54b:o owarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab s1221l | _bnooonln uCloln dciotnido)n;:
:      C| a                                 ^s
tA/usr/local/clang/include/absl/base/nullability.hn:d241C:a22l:l Fnote: uexpanded from macro 'absl_nonnull'n
ct  i241o | n#(dceofnisnte  Caobnsdli_tnioonnn*u lalb s_lN_onnonnunlull
l       | c                     ^)
 {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(In file included from cs2/s2region_intersection.cco:n17s:
tIn file included from  ../src/s2/s2region_intersection.hT:*27 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :o67b:
jIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                              ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'1230
:12:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi n1230e |   a b s lb_onooln n(u*lalb s_lN_onnonnunlull
l       | f                     ^u
nc)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29In file included from :
s2/s2region_intersection.ccIn file included from :../src/s2/s1angle.h17::
28In file included from :
../src/s2/s2region_intersection.hIn file included from :../src/s2/s2point.h27::
27In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2coder.h27::
23In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/status.h23::
67In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h67::
29In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/cord.h29::
94In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h94::
31In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/synchronization/mutex.h31::
896/usr/local/clang/include/absl/synchronization/mutex.h::311230:: 34:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  896  | 1230  |   e x p lbiocoilt  (C*oanbdsilt_inoonn(ncuolnls tf uTn*c )a(bTs*l _anbosnln_unlull loabbji)l
i      t| y                              ^_
un/usr/local/clang/include/absl/base/nullability.hk:n241o:w22n:) ,note: 
expanded from macro 'absl_nonnull'      
|                                  ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d289e:f34i:n enote:  expanded from macro 'absl_nullability_unknown'a
bs  l289_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^i
lity_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_intersection.cc:17:
In file included from In file included from s2/s2r2rect.cc../src/s2/s2region_intersection.h::1827:
:
In file included from In file included from ../src/s2/s2r2rect.h../src/s2/s2point.h::2927:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2coder.h::2823:
In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/cord.h67::
94In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h29::
31In file included from :
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/synchronization/mutex.h::941231:
:In file included from 8/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
922:48:  1231 | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  T*   922a | b s ls_tnautlilca bbioloilt yG_uuanrkannotwene daErqgu)a
l      (| c       ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 289C:o34n:d inote: texpanded from macro 'absl_nullability_unknown'i
on  *289  | a#bdself_innuel laabbslle_ nau,l
l      a| b                                               ^i
li/usr/local/clang/include/absl/base/nullability.ht:y257_:u23n:k nnote: oexpanded from macro 'absl_nullable'w
n   _257N | u#ldle_fuinnsep eacbisfli_endu
l      l| a                                 ^b
le _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |   In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _N o n n u l l 
        |                       ^ 
                 const Condition*In file included from  s2/s2region_intersection.cca:b17s:
lIn file included from _../src/s2/s2region_intersection.hn:u27l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from b../src/s2/s2coder.h):;23:

In file included from       /usr/local/clang/include/absl/status/status.h| :67                                               ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94257:
:In file included from 23/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nullable':
1293:33:   257warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def i1293n | ev oaibds lR_enguilsltaebrlMeu t_eNxuTlrlaacbelre(
v      o| i                      ^d
 (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2r2rect.ccs:l18_:
nIn file included from o../src/s2/s2r2rect.hn:n29u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2region_intersection.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1729:
:
In file included from In file included from ../src/s2/s2region_intersection.h/usr/local/clang/include/absl/strings/cord.h::2794:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2731:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/synchronization/mutex.h::23948:
:In file included from 10/usr/local/clang/include/absl/status/status.h:: 67:
warning: In file included from /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
948In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31b:
o/usr/local/clang/include/absl/synchronization/mutex.ho:l1293 :(62*:a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu l1293l | avbolied  eRveagli_s)t(ecroMnustte xCTornadcietri(ovno*i da b(s*la_bnsoln_nnuolnln)u ll =f n)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
n/usr/local/clang/include/absl/base/nullability.h:241u:l22l:p tnote: rexpanded from macro 'absl_nonnull';

        | 241         ^ | 
#def/usr/local/clang/include/absl/base/nullability.hi:n257e: 23a:b snote: lexpanded from macro 'absl_nullable'_
nonn  u257l | l# d_eNfoinnneu lalb
s      l| _                     ^n
ullaIn file included from bs2/s2region_intersection.ccl:e17 :
_In file included from N../src/s2/s2region_intersection.hu:l27l:
aIn file included from b../src/s2/s2point.hl:e27
:
      In file included from | ../src/s2/s2coder.h                      ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2r2rect.cc::131018::
17In file included from :../src/s2/s2r2rect.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
 In file included from 1310../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h :c67h:
aIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :m948s:g48,:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
st v  o948i | d *  baobosll _(n*oanbnsull_ln uclvl)a)b;l
e       | e                ^v
al/usr/local/clang/include/absl/base/nullability.h_:)241(:c22o:n snote: texpanded from macro 'absl_nonnull' 
Co  n241d | i#tdieofni*n ea basbls_ln_onnonnunlull)l  =_ Nnounlnlupltlr
;      
|                            ^| 
                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2region_intersection.cc
:17:
  In file included from 241../src/s2/s2region_intersection.h | :#27d:
eIn file included from f../src/s2/s2point.hi:n27e:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29_:
NIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                     ^/usr/local/clang/include/absl/synchronization/mutex.h
:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const charIn file included from *s2/s2r2rect.cc :a18b:
sIn file included from l../src/s2/s2r2rect.h_:n29o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from m../src/s2/s2point.hs:g27,:
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/status/status.hv:o67i:
dIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hc:v951):)9;:
       | warning:                                               ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  241951: | 22 :  vnote: oexpanded from macro 'absl_nonnull'i
d*   241a | b#sdle_fniunlel aabblsel _anrogn_n u=l ln u_lNlopntnru;l
l      
|               ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:
1241:      34| :                      ^warning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      | In file included from                                           ^s2/s2region_intersection.cc
:17/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2region_intersection.h::2227::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sl/usr/local/clang/include/absl/strings/cord.h_:n425o:n62n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Nonn  u425l | l 
       f| r                     ^i
end void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2r2rect.cc::24118::
22In file included from :../src/s2/s2r2rect.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from _/usr/local/clang/include/absl/strings/cord.hN:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nIn file included from os2/s2region_intersection.ccn:n17u:
lIn file included from l../src/s2/s2region_intersection.h :o27b:
jIn file included from e../src/s2/s2point.hc:t27,:

In file included from       ../src/s2/s2coder.h| :             ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
437:47  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e437  | a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
        std::string*In file included from  s2/s2r2rect.cca:b18s:
lIn file included from _../src/s2/s2r2rect.hn:o29n:
nIn file included from u../src/s2/s1angle.hl:l28 :
dIn file included from s../src/s2/s2point.ht:)27;:

In file included from       ../src/s2/s2coder.h| :                                              ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | s2/s2polyline_alignment.cc:#:31d351e:
:f/usr/local/clang/include/absl/synchronization/mutex.h3i::n1260e : 43awarning: :btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s l
warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
  o351n |  n u l1260Sl |  2 __N CoH E nCbKn_ouGoTll(l n
(ua      mb| _s                     ^pl
o:l:ytlyipnee_si,d e0n)t;i
t      y| <  ^T
>::t../src/s2/base/logging.hy:p40e::21::*  note: aexpanded from macro 'S2_CHECK_GT'b
sl   _40n | o#ndneufliln em eSt2h_oCdH)E(C)K
_      G| T                                          ^ 
CH/usr/local/clang/include/absl/base/nullability.hE:C241In file included from K:s2/s2region_intersection.cc_22G::T17
 :
      In file included from note: | ../src/s2/s2region_intersection.hexpanded from macro 'absl_nonnull'                    ^:

27:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l480 :_39N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
        | 480                     ^ | 
    using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2r2rect.cc
:18:
  In file included from 241../src/s2/s2r2rect.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2region_intersection.cca:b17s:
lIn file included from _../src/s2/s2region_intersection.hn:o27n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChuIn file included from ns2/s2r2rect.cck:I18t:
eIn file included from r../src/s2/s2r2rect.ha:t29o:
rIn file included from (../src/s2/s1angle.hc:o28r:
dIn file included from _../src/s2/s2point.hi:n27t:
eIn file included from r../src/s2/s2coder.hn:a23l:
:In file included from :/usr/local/clang/include/absl/status/status.hC:o67r:
dIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.he:p29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1293 :t33r:e ewarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                    ^
 1293 | /usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | v                     ^/usr/local/clang/include/absl/log/check.h
o:i128d: 3R:e gnote: iexpanded from macro 'CHECK_GT's
terM  u128t | e x TArBaScLe_rL(OvGo_iIdN T(E*RaNbAsLl__CnHoEnCnKIn file included from u_s2/s2region_intersection.ccGl:Tl_17 I:
fMIn file included from nP../src/s2/s2region_intersection.h)L:((27c(:
ovIn file included from na../src/s2/s2point.hsl:t127 ):
,c In file included from h#../src/s2/s2coder.hav:ra23*l:
 1In file included from a,/usr/local/clang/include/absl/status/status.hb :s(67lv:
_aIn file included from nl/usr/local/clang/include/absl/status/internal/status_internal.h2o):n,29n :
u#/usr/local/clang/include/absl/strings/cord.hlv:la667 l:m244s):g
 ,      warning: 
| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]        ^
| 
                                ^
  /usr/local/clang/include/absl/log/internal/check_impl.h667: | 59/usr/local/clang/include/absl/base/nullability.h :: 3241s::t a22note: t:iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_GT_IMPL' c
note:  expanded from macro 'absl_nonnull'C
   o59r |   d 241   | AA#dBdSvLaen_fLcieOnGAen_ dIRaeNbTasEdlR(_NCnAhoaLnr_nCIuHtlEelrC aK_t_NOoorPn*(n Cuahleblcs
lk_      _n| oG                     ^nTn
u,l l> ,i tv,a lsIn file included from 1i,s2/s2r2rect.ccz :ev18_at:
l 1In file included from n__../src/s2/s2r2rect.hbt:eyx29tte:
s,)In file included from ; ../src/s2/s1angle.h
v:a      l282| :
                                           ^,In file included from  
../src/s2/s2point.hv:a/usr/local/clang/include/absl/base/nullability.h27l::
2241In file included from _:../src/s2/s2coder.ht22:e:23x :
tnote: )In file included from expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/status/status.h
      :| 67  ^  :

241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_op.h#:d:29e68:
f:In file included from i22n/usr/local/clang/include/absl/strings/cord.h:e:  94anote: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'bIn file included from s
/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n   o:
n68/usr/local/clang/include/absl/synchronization/mutex.hn | : u l1293lw: h_62iN:lo newarning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u(l
lc
o      n| s t                     ^1293 
 | cvhoaird*  Raebgsils_tneurlMluatbelxeT In file included from ras2/s2region_intersection.ccab:scl17e_:
rlIn file included from (o../src/s2/s2region_intersection.hgv_:oi27nit:
deIn file included from r n../src/s2/s2point.h(a:*l27a_:
cbhIn file included from se../src/s2/s2coder.hlc:_k23n_:
ooIn file included from pn_/usr/local/clang/include/absl/status/status.hnr:ue67ls:
luIn file included from l t/usr/local/clang/include/absl/status/internal/status_internal.h f :n 29) :
( /usr/local/clang/include/absl/strings/cord.hc :o 674 n :s 37t : \ 
c      warning: h| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a                     ^
r
*   a674b | s/usr/local/clang/include/absl/base/nullability.h l :_s257nt:oa23nt:ni ucnote: l expanded from macro 'absl_nullable'lv
 omi  sd257g  | ,A#
dd      ev| fa                                                             ^ni
ncee/usr/local/clang/include/absl/base/nullability.h( :aCb241sh:al22r_:nIu tlnote: elexpanded from macro 'absl_nonnull'arb
laet   _o241Nru | l*# ldaaebbflsilen_
en       o| an                      ^bn
sull_ln ointn,u lsli z_eN_otn nnu_lbly
t      e| s                     ^)
;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2r2rect.cc
:18:
  In file included from 241../src/s2/s2r2rect.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h
:      94| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                               s2/s2polyline_alignment.cc : 351 : 3 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
   ../src/s2/base/logging.h : 40 : 21 :   note: cexpanded from macro 'S2_CHECK_GT'o
nsIn file included from    ts2/s2region_intersection.cc40 : | v17#od:
ieIn file included from df../src/s2/s2region_intersection.hi*:n 27ea :
bSIn file included from 2s_../src/s2/s2point.hlC:_H27nE:
CoKIn file included from n_../src/s2/s2coder.hnG:Tu 23lC:
lHIn file included from  E/usr/local/clang/include/absl/status/status.hoC:Kb67_jG:
,TIn file included from 

/usr/local/clang/include/absl/status/internal/status_internal.h            :| | 29                                                             ^                    ^:


/usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h730/usr/local/clang/include/absl/log/check.h:::24136128:::22 3::warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: note: 
expanded from macro 'absl_nonnull'expanded from macro 'CHECK_GT'

      730241128 |  |  |  #    dA BeexSfpiLl_incLeOi tGa_ bCIshNlTa_rEnRRoNannAnLgue_lC(lcH Eo_CNKno_sGtnT nC_uIolMlPr
Ld(*       (| va                     ^bas
ll_1n)o,n n#uvlall 1c,o r(dv)a l:2 )c,o r#dv_a(lc2o)rIn file included from 
ds2/s2r2rect.cc)      : | {18}  ^:


In file included from       ../src/s2/s2r2rect.h| /usr/local/clang/include/absl/log/internal/check_impl.h:                                   ^:29
59:
:In file included from /usr/local/clang/include/absl/base/nullability.h3../src/s2/s1angle.h:::241 28:note: :
22expanded from macro 'ABSL_LOG_INTERNAL_CHECK_GT_IMPL'In file included from :
../src/s2/s2point.h :27note:    :
expanded from macro 'absl_nonnull'59In file included from 
 | ../src/s2/s2coder.h :   A23B241:
S | In file included from L#/usr/local/clang/include/absl/status/status.h_d:LeOf67Gi:
_nIIn file included from eN /usr/local/clang/include/absl/status/internal/status_internal.hTa:EbR29sN:
lAIn file included from _Ln/usr/local/clang/include/absl/strings/cord.h_oCn:HnEu94lCl:
K _In file included from O_/usr/local/clang/include/absl/strings/internal/cordz_info.hNPo:n(n31uC:
lh/usr/local/clang/include/absl/synchronization/mutex.hel:
c1309k      _:| G35                     ^T:,
  warning: >type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 val 11309, |  vvoaild1 _Rteegxits,t evraClIn file included from o2s2/s2region_intersection.cc,n :dv17Va:
laIn file included from 2r../src/s2/s2region_intersection.h_Tt:re27ax:
tc)In file included from 
e../src/s2/s2point.h      r:| (27  ^v:

oIn file included from i../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_op.hd:: 2375(:
:*In file included from 61a/usr/local/clang/include/absl/status/status.h:b: s67note: l:
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'_In file included from 
n/usr/local/clang/include/absl/status/internal/status_internal.ho:n   29n75:
u | /usr/local/clang/include/absl/strings/cord.hl :l 736A B:fS17nL:_) L(warning: O
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G      _
I| N                                  ^  T
E736R | /usr/local/clang/include/absl/base/nullability.h N: A241L _ :CcHo22nE:sC Ktnote: ( :C:oaexpanded from macro 'absl_nonnull'br
ds*l  : :241abis | ml#p_dnleifcoinintne_u lcaalb sstclo<r_dcno_o;nn
snt      u | l                ^clh a
_rN*/usr/local/clang/include/absl/base/nullability.h oa:nb241ns:ul22l_:nlo n
note: n      uexpanded from macro 'absl_nonnull'l| l
                     ^>
  (241  |  # dIn file included from  es2/s2r2rect.cc f:i\18
n:
      eIn file included from |  ../src/s2/s2r2rect.ha                                                            ^:b
s29l:
/usr/local/clang/include/absl/base/nullability.h_In file included from n:../src/s2/s1angle.ho241:n:28n22u:
l:In file included from l ../src/s2/s2point.h note: _:Nexpanded from macro 'absl_nonnull'o27n
:
nIn file included from   u../src/s2/s2coder.h241l:l | 
23#      :
d| In file included from                      ^e/usr/local/clang/include/absl/status/status.h
f:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:o1310n:n17u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2region_intersection.cc241: | 17#:
dIn file included from e../src/s2/s2region_intersection.hf:i27n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l795
:      43| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 795s2/s2r2rect.cc | : 18 :
fIn file included from r../src/s2/s2r2rect.hi:e29n:
dIn file included from  ../src/s2/s1angle.hv:o28i:
dIn file included from  ../src/s2/s2point.hA:b27s:
lIn file included from F../src/s2/s2coder.ho:r23m:
aIn file included from t/usr/local/clang/include/absl/status/status.hF:l67u:
sIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.h(:a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h:::94C:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hd:*31 :
a/usr/local/clang/include/absl/synchronization/mutex.hb:s1310l:_47n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll  c1310o | r d , 
       c| o                                          ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln em sagb,s lc_onnosntn uvloli d_*N oanbnsull_ln
o      n| n                     ^u
ll cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
s2/s2polyline_alignment.cc:388:3: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  388 |   S2_CHECK_GT(num_polylines, 0);
      |   ^
../src/s2/base/logging.h:40:21: note: expanded from macro 'S2_CHECK_GT'
   40 | #define S2_CHECK_GT CHECK_GT
      |                     ^
/usr/local/clang/include/absl/log/check.h:128:3: note: expanded from macro 'CHECK_GT'
  128 |   ABSL_LOG_INTERNAL_CHECK_GT_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:59:3: In file included from note: s2/s2r2rect.ccexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_GT_IMPL':
18:
In file included from ../src/s2/s2r2rect.h   :5929 | :
 In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hL:O27G:
_In file included from I../src/s2/s2coder.hN:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.hA:L67_:
CIn file included from H/usr/local/clang/include/absl/status/internal/status_internal.hE:C29K:
_O/usr/local/clang/include/absl/strings/cord.hP:(109C:h53e:c kwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]G
T, >,   109v | avlo1i,d  vCaolp1y_CtoerxdtT,o Svtarli2n,g (vcaoln2s_tt eCxotr)d
&       | s  ^r
c, /usr/local/clang/include/absl/log/internal/check_op.hs:t68d::22::s tnote: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'i
In file included from ns2/s2region_term_indexer.cc   g:*6875  | :
a In file included from  b../src/s2/s2region_term_indexer.hws:lh105_i:
lnIn file included from oe../src/s2/s2cell_id.hn :n(43cu:
olIn file included from nl../src/s2/s1angle.hs :td28 s:
ctIn file included from h../src/s2/s2point.h)a:;r27
*:
       In file included from a| ../src/s2/s2coder.hb                                                    ^:s
23l:
_In file included from n/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.hu:l:l24167a::
In file included from b22/usr/local/clang/include/absl/status/internal/status_internal.hl::e 29 :
anote: In file included from bexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.hs
:l82_:
  lIn file included from o241/usr/local/clang/include/absl/crc/internal/crc_cord_state.hg | :_#23id:
enIn file included from tf/usr/local/clang/include/absl/crc/crc32c.hei:rn32ne:
a In file included from la/usr/local/clang/include/absl/strings/str_format.h_b:sc84hl:
_enc/usr/local/clang/include/absl/strings/internal/str_format/bind.hok:n_143on:pu11l_:lr  ewarning: _s'enable_if' is a clang extension [-Wgcc-compat]Nu
olntn u   l143 l |  
          |                        ^   
     \ 
        | e                     ^n
abl/usr/local/clang/include/absl/base/nullability.he:_257i:f23(:s tnote: rexpanded from macro 'absl_nullable'_
fo  r257mIn file included from  | as2/s2r2rect.cc#td:_e18if:
niIn file included from tn../src/s2/s2r2rect.hee:r 29na:
basIn file included from ll../src/s2/s1angle.h:_::n28Eu:
nlIn file included from lsa../src/s2/s2point.hub:rl27ee :
C_In file included from oN../src/s2/s2coder.hnu:sl23tl:
eaIn file included from xb/usr/local/clang/include/absl/status/status.hpl:re67(
:
s      In file included from )| /usr/local/clang/include/absl/status/internal/status_internal.h,                      ^: 
29":
c/usr/local/clang/include/absl/strings/cord.ho:n110s:t55e:x pwarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
trap  "110) | ,v
o      i| d          ^ 
AppendCordToString(const Cord& src, std::string* absl_nonnul/usr/local/clang/include/absl/strings/internal/str_format/bind.hl: 149d:s22t:) ;warning: 
'enable_if' is a clang extension [-Wgcc-compat]      
|                                                       ^
  /usr/local/clang/include/absl/base/nullability.h149: | 241 : 22 :   note:  expanded from macro 'absl_nonnull'_
_s2/s2polyline_alignment.cca  :t241388t | :r#3id:be ufwarning: titype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]en
_e_ ../src/s2/base/logging.h(a:(b40es:nl21a_:bnl oenote: n_expanded from macro 'S2_CHECK_GT'ni
ufl(   ls40 t | _r#N_dofenofnriunmleal t
_SIn file included from       i2ns2/s2region.cc| In file included from _tC:H                     ^Es2/s2region_intersection.cce18
C:Kr_:
G17nIn file included from aT:
../src/s2/s2region.hl In file included from ::C../src/s2/s2region_intersection.hH24E:C:K:
_EG27TIn file included from 
n:
../src/s2/s1angle.h      sIn file included from :| u                    ^../src/s2/s2point.h28r
::
e27In file included from /usr/local/clang/include/absl/log/check.hC:
../src/s2/s2point.h:oIn file included from :128n../src/s2/s2coder.h25:s::
3t23In file included from :e:
../src/s2/util/coding/coder.h xIn file included from :note: p/usr/local/clang/include/absl/status/status.hr36(expanded from macro 'CHECK_GT'::
s
67In file included from ):
../src/s2/base/casts.h  ,In file included from :128
/usr/local/clang/include/absl/status/internal/status_internal.h34 |        ::
|  29In file included from                      ^A:
B/usr/local/clang/include/absl/log/log.hS
/usr/local/clang/include/absl/strings/cord.h:L:209_1140:
L:OIn file included from G49/usr/local/clang/include/absl/log/internal/log_impl.h_::I N20warning: T:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]EIn file included from R
N/usr/local/clang/include/absl/log/absl_vlog_is_on.hA:L63_:
 C1140/usr/local/clang/include/absl/log/internal/vlog_config.hH | :E 49 C: K37_ :G  T _warning: I /usr/local/clang/include/absl/strings/internal/str_format/bind.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M :
P L ( 158     (:v49al1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:59:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_GT_IMPL'
   59 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_GT, >, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 22 :    | warning:   'enable_if' is a clang extension [-Wgcc-compat] 
i n t     R 158e  | g  i  s  t  e  rC Ao_nr_ddaIRtnetiprtEiixbatuletirezn_ea_(l(V*(L eoangbaSsbillt_een_*oi nfan(buVslalll_ inrdoeFnpon)ru;ml
al      t | Iv                                                ^m)
p;l
<      A| /usr/local/clang/include/absl/base/nullability.hr                                    ^:g
241s:.22.:. /usr/local/clang/include/absl/base/nullability.h>note: :(expanded from macro 'absl_nonnull'241s
:)22,:    241" | note: b#expanded from macro 'absl_nonnull'ad
de ff  io241nr | em# adateb fstilrn_aenp o"an)bn)su)ll
_l      n|  o                     ^_nN
onnunlull l_
N      o| n                     ^n
ull
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |   In file included from  s2/s2region_intersection.cc : 17 :
_In file included from _../src/s2/s2region_intersection.ha:t27t:
rIn file included from In file included from i../src/s2/s2point.hs2/s2region.ccb::u2718t:
:
eIn file included from In file included from _../src/s2/s2coder.h../src/s2/s2region.h_::(2324(:
:
eIn file included from In file included from n/usr/local/clang/include/absl/status/status.h../src/s2/s1angle.ha::b6728l:
:
eIn file included from In file included from _/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2point.hi::f2925(:
:
V/usr/local/clang/include/absl/strings/cord.hIn file included from a:../src/s2/util/coding/coder.hl1146:i:36d10:
F:In file included from o../src/s2/base/casts.h r:warning: m34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:

tIn file included from I/usr/local/clang/include/absl/log/log.hm: p2091146l:
 | <In file included from CA/usr/local/clang/include/absl/log/internal/log_impl.hor:rg20ds:
R.In file included from e./usr/local/clang/include/absl/log/absl_vlog_is_on.hp.:*>63 (:
as/usr/local/clang/include/absl/log/internal/vlog_config.hb):s,63l :_"43nb:oa ndwarning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
flolr    m63Na | et w  Etexrxtapeplr"in)ca)il)tR
 e      cp| o(                     ^na
sbtselx:p:rs tVrLionggS_ivtiee(wc odnastta ,c
h      a| r         ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: In file included from nexpanded from macro 'absl_nonnull'u
s2/s2r2rect.ccl:  l18241 :
 | fIn file included from #)../src/s2/s2r2rect.hd
:e      29f| :
i                                          ^In file included from n
../src/s2/s1angle.he: 28/usr/local/clang/include/absl/base/nullability.ha:
:bIn file included from 241s../src/s2/s2point.h:l:22_27:n:
 oIn file included from note: n../src/s2/s2coder.hexpanded from macro 'absl_nonnull'n:
u23l:
l  In file included from  241/usr/local/clang/include/absl/status/status.h_ | :N#67od:
enIn file included from nfu/usr/local/clang/include/absl/status/internal/status_internal.hli:nl29
e:
       a/usr/local/clang/include/absl/strings/cord.hb| :s                     ^425l
:_62n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _No  n425n | u l lf
r      i| e                     ^n
d void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2region.ccd:e18f:
iIn file included from n../src/s2/s2region.he: 24a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u25l:
lIn file included from  ../src/s2/util/coding/coder.h_:N36o:
nIn file included from n../src/s2/base/casts.hu:l34l:

In file included from       /usr/local/clang/include/absl/log/log.h| :                     ^209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.hs2/s2region_intersection.cc::6317:
:
In file included from /usr/local/clang/include/absl/log/internal/vlog_config.h../src/s2/s2region_intersection.h::9627::
60In file included from :../src/s2/s2point.h :27warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:   6796:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :f29r:
i/usr/local/clang/include/absl/strings/cord.he:n1159d:In file included from  17s2/s2r2rect.cci::n 18twarning: :
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from l
../src/s2/s2r2rect.ho:g29 _:
1159iIn file included from  | n../src/s2/s1angle.hitn:le28ir:
nnIn file included from ea ../src/s2/s2point.hlC::o27r::
dRRIn file included from eep../src/s2/s2coder.hg*:i 23sa:
tbIn file included from es/usr/local/clang/include/absl/status/status.hrl:A_67nn:
doIn file included from In/usr/local/clang/include/absl/status/internal/status_internal.hnn:iu29tl:
il/usr/local/clang/include/absl/strings/cord.ha :lN437ie:zw47eE:(x Vtwarning: eLtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ro
gnSail  tR437ee | p* (  a
 b       s | l                 ^ _ 
n o /usr/local/clang/include/absl/base/nullability.hn :n u241l l :  22v :)   ;note:  
expanded from macro 'absl_nonnull'       
 |                                                             ^   
241  |  /usr/local/clang/include/absl/base/nullability.h# : d241e : f22 i: n  enote:   expanded from macro 'absl_nonnull'sa
tbds  l:241:_ | sn#tdorneinfnuigln*el   aab_bssNllo__nnnononnunnluulll
ll        | d_s                     ^tN)
o;n
n      u| l                                              ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullabIn file included from ls2/s2r2rect.cce: 18_:
NIn file included from u../src/s2/s2r2rect.hl:l29a:
bIn file included from l../src/s2/s1angle.he:
28      :
| In file included from                       ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |  In file included from  s2/s2region.cc : 18e:
xIn file included from p../src/s2/s2region.hl:i24c:
iIn file included from t../src/s2/s1angle.h :C28h:
uIn file included from n../src/s2/s2point.hk:I25t:
eIn file included from r../src/s2/util/coding/coder.ha:t36o:
rIn file included from (../src/s2/base/casts.hc:o34r:
dIn file included from _/usr/local/clang/include/absl/log/log.hi:n209t:
eIn file included from r/usr/local/clang/include/absl/log/internal/log_impl.hn:a20l:
:In file included from :/usr/local/clang/include/absl/log/absl_vlog_is_on.hC:o63r:
d/usr/local/clang/include/absl/log/internal/vlog_config.hR:e119p:*15 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n119n | u l lc otnrsete )c;h
a      r| *                                                   ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 c  o241n | s#td effiilnee_ ;a
b      s| l              ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _NonnullIn file included from 
s2/s2r2rect.cc      :| 18                     ^:

In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull treIn file included from es2/s2region_intersection.cc):;17
:
      In file included from | ../src/s2/s2region_intersection.h                                          ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n1222e: 52a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn u1222l | li n_lNionnen uvll
      o| i                     ^d
 Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2r2rect.cc::24118::
22In file included from :../src/s2/s2r2rect.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 525_:N35o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l
      |                      ^  
525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullableIn file included from 
s2/s2region_intersection.cc      :| 17                      ^:

In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SIn file included from es2/s2r2rect.cct:T18r:
eIn file included from e../src/s2/s2r2rect.h(:C29o:
rIn file included from d../src/s2/s1angle.hR:e28p:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
rIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hp:,29
:
      | /usr/local/clang/include/absl/strings/cord.h                                              ^:
582:37/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
    582241 |  |  # d e feixnpel iacbistl _CnhounnnkuRlaln g_eN(ocnonnusltl 
C      o| r                     ^d
* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2region_intersection.ccl:l17
:
      In file included from | ../src/s2/s2region_intersection.h                     ^:
27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline vIn file included from os2/s2r2rect.cci:d18 :
CIn file included from o../src/s2/s2r2rect.hr:d29::
:In file included from I../src/s2/s1angle.hn:l28i:
nIn file included from e../src/s2/s2point.hR:e27p:
:In file included from :../src/s2/s2coder.hS:e23t:
TIn file included from r/usr/local/clang/include/absl/status/status.he:e67O:
rIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.hm:p29t:
y/usr/local/clang/include/absl/strings/cord.h(:C588o:r17d:R ewarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s588l | _ n u l lcaobnlset  rCeopr,d
*       | a                                                     ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
co  r257d | _#;d
e      f| i                ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2region_intersection.cc
:17:
In file included from   ../src/s2/s2region_intersection.h641: | 27 :
 In file included from  ../src/s2/s2point.h :u27s:
iIn file included from n../src/s2/s2coder.hg: 23p:
oIn file included from i/usr/local/clang/include/absl/status/status.hn:t67e:
rIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h=: 29c:
o/usr/local/clang/include/absl/strings/cord.hn:s1301t: 56c:h awarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 absl_ n1301o | ninnulliln;e
       v| o                                ^i
d /usr/local/clang/include/absl/base/nullability.hC:o241r:d22::: Inote: nexpanded from macro 'absl_nonnull'l
in  e241R | e#pd:e:fCionmem iatbTsrle_en(ocnonnusltl  C_oNrodnRneupl*l 
a      b| s                     ^l
_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:In file included from 18s2/s2region_intersection.cc:
:In file included from 17../src/s2/s2r2rect.h:
:In file included from 29../src/s2/s2region_intersection.h:
:In file included from 27../src/s2/s1angle.h:
:In file included from 28../src/s2/s2point.h:
:In file included from 27../src/s2/s2point.h:
:In file included from 27../src/s2/s2coder.h:
:In file included from 23../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/strings/cord.h29::
1302:/usr/local/clang/include/absl/strings/cord.h50::655 :39warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |     655  |          e x p l i c i t   C h a r I t e r a t o r ( c o n s t   C o r d *C oarbdsRle_pn*o nanbuslll_ ncoonrndu)l
l       | r                                      ^e
p,/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                 ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2region_intersection.cc
:17:
In file included from ../src/s2/s2region_intersection.h:  27667:
 | In file included from  ../src/s2/s2point.h :s27t:
aIn file included from t../src/s2/s2coder.hi:c23 :
CIn file included from o/usr/local/clang/include/absl/status/status.hr:d67 :
AIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.hv:a29n:
c/usr/local/clang/include/absl/strings/cord.he:A1312n:d38R:e awarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
Char I1312t | eirnaltionre*  aabbssll:_:ncoonrndu_liln tietr,n asli:z:eC_otr dnR_ebpy*t easb)s;l
_      n| u                                           ^l
la/usr/local/clang/include/absl/base/nullability.hb:l241e: 22C:o rnote: dexpanded from macro 'absl_nonnull':
:I  n241l | i#ndeeRfeipn:e: calbesalr_(n)o n{n
u      l| l                                     ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
      note: | expanded from macro 'absl_nullable'                     ^

  257 | #define absl_nullable _In file included from Ns2/s2r2rect.ccu:l18l:
aIn file included from b../src/s2/s2r2rect.hl:e29
:
      In file included from | ../src/s2/s1angle.h                      ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2region_intersection.cc:note: 17expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2region_intersection.h:  27241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :_1321N:o48n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2r2rect.ccf:i18n:
eIn file included from  ../src/s2/s2r2rect.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable dataIn file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* a,bs ls_inzoen_ntu lnl) ;p
c      )| 
                              ^      
|                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:/usr/local/clang/include/absl/base/nullability.h23::241 :22note: :expanded from macro 'absl_nullable' 
note: expanded from macro 'absl_nonnull'
  257 |   #241d | e#fdienfei naeb salb_snlu_lnloanbnluel l_ N_uNlolnanbullel

            | |                       ^                     ^

In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2region.ccN:o18n:
nIn file included from u../src/s2/s2region.hl:l24
:
      In file included from In file included from | ../src/s2/s1angle.hs2/s2region_term_indexer.cc                     ^::
2875:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2region_term_indexer.h::25105:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2cell_id.h::3643:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s1angle.h::3428:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h../src/s2/s2point.h::20927:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s2coder.h:In file included from :20s2/s2r2rect.cc23:
::
In file included from 18In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:
/usr/local/clang/include/absl/status/status.h:In file included from :63../src/s2/s2r2rect.h67:
::
29In file included from /usr/local/clang/include/absl/log/internal/vlog_config.h:
/usr/local/clang/include/absl/status/internal/status_internal.h:In file included from :133../src/s2/s1angle.h29:::
3728In file included from ::
/usr/local/clang/include/absl/strings/cord.h In file included from :warning: ../src/s2/s2point.h82:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27
In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :../src/s2/s2coder.h23:  :
23133In file included from :
 | /usr/local/clang/include/absl/crc/crc32c.hIn file included from i:/usr/local/clang/include/absl/status/status.hn32:t:
67 :
/usr/local/clang/include/absl/strings/str_format.hRIn file included from :e/usr/local/clang/include/absl/status/internal/status_internal.h155g::i2936s:
:t /usr/local/clang/include/absl/strings/cord.he:warning: r937type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A:
n35d:I nwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
ial  i937z | e ( V L oagbSsilt:e:*c oarbds_li_nntoenrnnualll: :vC)o;r
d      R| e                                    ^p
* ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241t | r#edee(f)i nceo nasbts;l
_      n| o                                  ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :_23N:o nnote: nexpanded from macro 'absl_nullable'u
ll  
257       | | #                     ^d
efine absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2region.cc938: | 18 :
 In file included from  ../src/s2/s2region.h :a24b:
sIn file included from l../src/s2/s1angle.h:::28c:
oIn file included from r../src/s2/s2point.hd:_25i:
nIn file included from t../src/s2/util/coding/coder.he:r36n:
aIn file included from l../src/s2/base/casts.h:::34C:
oIn file included from r/usr/local/clang/include/absl/log/log.hd:R209e:
pIn file included from */usr/local/clang/include/absl/log/internal/log_impl.h :a20b:
sIn file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.h_:n63o:
n/usr/local/clang/include/absl/log/internal/vlog_config.hn:u157l:l11 :a swarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
ree(  )157  | cVoLnosgtS;i
t      e| *                                  ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241S | e#tdVeMfoidnuel eaLbisslt_HneoandnFuolrlT e_sNtoOnnnluyl(l

            | |           ^                     ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2r2rect.cc#:d18e:
fIn file included from i../src/s2/s2r2rect.hn:e29 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23_:
NIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he:
29      :
| /usr/local/clang/include/absl/strings/cord.h                      ^:
939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2region.cc  :93918 | :
 In file included from  ../src/s2/s2region.h : 24c:
oIn file included from n../src/s2/s1angle.hs:t28 :
cIn file included from h../src/s2/s2point.ha:r25*:
 In file included from a../src/s2/util/coding/coder.hb:s36l:
_In file included from n../src/s2/base/casts.ho:n34n:
uIn file included from l/usr/local/clang/include/absl/log/log.hl: 209a:
sIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hc:h20a:
rIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.h(:)63 :
c/usr/local/clang/include/absl/log/internal/vlog_config.ho:n158s:t15;:
       | warning:                 ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  241158: | 22 :   note:  expanded from macro 'absl_nonnull'V
Lo  g241S | i#tdee*f ianbes la_bnsull_lnaobnlneu lvl) ;_
N      o| n              ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
257      :| 23                     ^:
 note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2r2rect.ccs:l18_:
nIn file included from u../src/s2/s2r2rect.hl:l29a:
bIn file included from l../src/s2/s1angle.he: 28_:
NIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he:
23      :
| In file included from                       ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2region_intersection.ccIn file included from :../src/s2/s2point.h17::
27In file included from :
../src/s2/s2region_intersection.hIn file included from :../src/s2/s2coder.h27::
23In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h27::
67In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/cord.h67::
82In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h29::
23:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h1666::3248:
: /usr/local/clang/include/absl/strings/str_format.h:warning: 164type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1666 | in  l164i | n e  iCnotr*d  aCbosrld_:n:oAndnvualnlc eUAnnudsReeda(d)( C{h arreIttuerrna tpo_r;*  }a
b      s| l       ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  inote: texpanded from macro 'absl_nonnull',

      |                                                  ^241
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnIn file included from us2/s2region_intersection.ccl:l17 :
pIn file included from _../src/s2/s2region_intersection.h;:
27      :
| In file included from        ^../src/s2/s2point.h
:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | #define absl_nonnull _Nonn/usr/local/clang/include/absl/strings/cord.hu:l1672l:
41      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/cord.h:  941241: | 35#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne ab  s941l | _ n o n naublsll :_:Ncoonrndu_liln
t      e| r                     ^n
al::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257In file included from :s2/s2region_term_indexer.cc23::75 :
In file included from note: ../src/s2/s2region_term_indexer.hexpanded from macro 'absl_nullable':
105:
In file included from   ../src/s2/s2cell_id.h257: | 43#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:u29l:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hb:l82e:

In file included from       /usr/local/clang/include/absl/crc/internal/crc_cord_state.h| :                      ^23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dsIn file included from ts2/s2r2rect.cc,:
18      :
| In file included from                                           ^../src/s2/s2r2rect.h
:29:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h:28::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :a950b:s18l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   950_ | N o n n uClolr
d      R| e                     ^p
Flat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SeIn file included from ts2/s2region_term_indexer.ccT:r75e:
eIn file included from (../src/s2/s2region_term_indexer.hC:o105r:
dIn file included from R../src/s2/s2cell_id.he:p43*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23r:
eIn file included from p/usr/local/clang/include/absl/status/status.h,: 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
CIn file included from o/usr/local/clang/include/absl/strings/cord.hr:d82z:
UIn file included from p/usr/local/clang/include/absl/crc/internal/crc_cord_state.hd:a23t:
eIn file included from S/usr/local/clang/include/absl/crc/crc32c.hc:o32p:
e/usr/local/clang/include/absl/strings/str_format.h&: 440s:c24o:p ewarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                           ^
  440 | /usr/local/clang/include/absl/base/nullability.hi:n241t: F22P:r inote: nexpanded from macro 'absl_nonnull't
F(  s241t | d#:d:eFfIiLnEe*  aabbssll__nnoonnnnuullll  _oNuotnpnuutl,l 
c      o| n                     ^s
t FormatSpec<Args...>& In file included from fs2/s2r2rect.cco:r18m:
aIn file included from t../src/s2/s2r2rect.h,:
29      :
| In file included from                        ^../src/s2/s1angle.h
:28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
241In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
f/usr/local/clang/include/absl/strings/cord.hi:n961e: 34a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
non  n961u | l l   _ Nvoonindu lSle
t      T| r                     ^e
eOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2region_term_indexer.ccn:u75l:
lIn file included from a../src/s2/s2region_term_indexer.hb:l105e:
 In file included from _../src/s2/s2cell_id.hN:u43l:
lIn file included from a../src/s2/s1angle.hb:l28e:

In file included from       ../src/s2/s2point.h| :                      ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:In file included from 32s2/s2r2rect.cc:
:18/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 469../src/s2/s2r2rect.h::2029::
 In file included from ../src/s2/s1angle.hwarning: :28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27:
  In file included from 469../src/s2/s2coder.h | :i23n:
tIn file included from  /usr/local/clang/include/absl/status/status.hS:N67P:
rIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:t29F:
(/usr/local/clang/include/absl/strings/cord.hc:h968a:r31*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n968n | u l l   ovuotipdu tE,m psltadc:e:Tsriezee(_Cto rsdiRzeep,*
       a| b                   ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'r
ep  ,241  | M#edtehfoidnIed eanbtsilf_ineorn nmueltlh o_dN)o;n
n      u| l                              ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(In file included from Cs2/s2region_term_indexer.cco:r75d:
RIn file included from e../src/s2/s2region_term_indexer.hp:*105 :
aIn file included from b../src/s2/s2cell_id.hs:l43_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :r27e:
pIn file included from ,../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67I:
nIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
DIn file included from a/usr/local/clang/include/absl/strings/cord.ht:a82&:
 In file included from p/usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:r23e:
nIn file included from t/usr/local/clang/include/absl/crc/crc32c.h,:
32      :
|                               ^/usr/local/clang/include/absl/strings/str_format.h
:503:/usr/local/clang/include/absl/base/nullability.h20::241 :22warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'absl_nonnull'
    503241 |  |  # dFeofrimnaet RaabwsSli_nnko(nTn*u lalb s_lN_onnonnunlull
l       | r                     ^a
w)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2r2rect.cc
:18:
  In file included from 241../src/s2/s2r2rect.h | :#29d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl:
978      :| 36                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:In file included from 43s2/s2r2rect.cc:
:In file included from 18../src/s2/s1angle.h:
:In file included from 28../src/s2/s2r2rect.h:
:In file included from 29../src/s2/s2point.h:
:In file included from 27../src/s2/s1angle.h:
:In file included from 28../src/s2/s2coder.h:
:In file included from 23../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/cord.h:
:In file included from 82/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
:23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 999/usr/local/clang/include/absl/crc/crc32c.h::2832::
 /usr/local/clang/include/absl/strings/str_format.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]860
:43:   warning: 999type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
      v860o | i d  fCroipeynTdo Avroriady (AcbhsalrF*o rambastlF_lnuosnhn(uFlolr mdasttS)i ncko*n satb;s
l      _| n                           ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22s:i nnote: kexpanded from macro 'absl_nonnull',

        | 241                                          ^ | 
#de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2region_term_indexer.cc28::
75In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2region_term_indexer.h27::
105In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2cell_id.h23::
43In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s1angle.h67::
28In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
27:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2coder.h1012::2337:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
 In file included from 1012/usr/local/clang/include/absl/strings/cord.h | : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:b23s:
lIn file included from :/usr/local/clang/include/absl/crc/crc32c.h::c32o:
r/usr/local/clang/include/absl/strings/str_format.hd:_867i:n60t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l::C  o867r | d z Ienxfpol*i caibts lF_onrumlaltaSbilnek (csotrrd_zf_oirnmfaot(_)i nctoenrsnta l{:
:      F| o                                    ^r
mIn file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
atSi/usr/local/clang/include/absl/base/nullability.hn:k257I:m23p:l *note:  expanded from macro 'absl_nullable'a
bsl  _257n | o#ndneufliln es )a
b      s| l                                                           ^_
null/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :_ Nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e#
d      e| f                      ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2region_term_indexer.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h75::
29In file included from :
../src/s2/s2region_term_indexer.h/usr/local/clang/include/absl/strings/cord.h::1051017:
:In file included from 51../src/s2/s2cell_id.h:: 43:
warning: In file included from ../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2point.h:27 :
1017In file included from  | ../src/s2/s2coder.h : 23 :
 In file included from v/usr/local/clang/include/absl/status/status.ho:i67d:
 In file included from s/usr/local/clang/include/absl/status/internal/status_internal.he:t29_:
cIn file included from o/usr/local/clang/include/absl/strings/cord.hr:d82z:
_In file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:f23o:
(In file included from c/usr/local/clang/include/absl/crc/crc32c.ho:r32d:
_/usr/local/clang/include/absl/strings/str_format.hi:n869t:e40r:n awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:Co  r869d | z I nsftor*_ faobrsmla_tn_oinnntuelrln aclo:r:dFzo_rimnaftoS)i n{k
I      m| p                                                  ^l
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | s#idnekf_i;n
e       | a                                       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   voIn file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix)i;
d       | C                        ^o
py/usr/local/clang/include/absl/base/nullability.hT:o241A:r22r:a ynote: Iexpanded from macro 'absl_nonnull'm
pl  (241c | h#adre*f ianbes la_bnsoln_nnuolnln udlslt )_ Ncoonnnsutl;l

            | |                              ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2region_intersection.cc241: | 17#:
dIn file included from e../src/s2/s2region_intersection.hf:i27n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_/usr/local/clang/include/absl/status/internal/status_internal.hN:o150n:n58u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineIn file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
Rep::CopyToArray(char* absl_noIn file included from ns2/s2region_intersection.ccn:u17l:
lIn file included from  ../src/s2/s2region_intersection.hd:s27t:
)In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h :{23
:
      | /usr/local/clang/include/absl/status/status.h                                               ^:
1038:33: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:  note: 1038 | expanded from macro 'absl_nonnull' 
     s241t | a#tduesf_iinnet earbnsall_:nonn:uSltla t_uNsoRnenpu*l la
b      s| l                     ^_
nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:17:
In file included from ../src/s2/s2region_intersection.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.hIn file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) cons:t24 :
{In file included from 
../src/s2/s1angle.h      :| 28                                        ^:

In file included from ../src/s2/s2point.h:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/util/coding/coder.h241::3622:
:In file included from  ../src/s2/base/casts.h:note: 34expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/log.h:  209241:
 | In file included from #/usr/local/clang/include/absl/log/internal/log_impl.hd:e22f:
iIn file included from n/usr/local/clang/include/absl/log/internal/log_message.he: 47a:
bIn file included from s/usr/local/clang/include/absl/log/internal/structured_proto.hl:_27n:
oIn file included from n/usr/local/clang/include/absl/log/internal/proto.hn:u34l:
l /usr/local/clang/include/absl/types/span.h_:N733o:n31n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                      ^
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      | In file included from                               ^s2/s2r2rect.cc
:18:
In file included from ../src/s2/s2r2rect.h:/usr/local/clang/include/absl/base/nullability.h29::
257In file included from :../src/s2/s1angle.h23::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nullable':
27:
In file included from ../src/s2/s2coder.h  :25723 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
s/usr/local/clang/include/absl/strings/cord.hl:_1514n:u29l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e _ N1514u | l l a b lceo
r      d| _                      ^i
nternal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2region.ccn:u18l:
lIn file included from 
../src/s2/s2region.h      :| 24                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcepIn file included from ts2/s2r2rect.cc :{18
:
      In file included from | ../src/s2/s2r2rect.h                    ^:
29:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s1angle.h::25728::
23In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2coder.h:23  :
257In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s1525l:_29n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble  1525_ | N u l l acbolred
_      i| n                      ^t
ernal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIteratoIn file included from rs2/s2region.cc:::18C:
hIn file included from u../src/s2/s2region.hn:k24I:
tIn file included from e../src/s2/s1angle.hr:a28t:
oIn file included from r../src/s2/s2point.h(:c25o:
nIn file included from s../src/s2/util/coding/coder.ht: 36C:
oIn file included from r../src/s2/base/casts.hd:*34 :
aIn file included from b/usr/local/clang/include/absl/log/log.hs:l209_:
nIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hn:n22u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_message.h :c47o:
rIn file included from d/usr/local/clang/include/absl/log/internal/structured_proto.h): 27{:

In file included from       /usr/local/clang/include/absl/log/internal/proto.h| :                                                      ^34
:
/usr/local/clang/include/absl/types/span.h/usr/local/clang/include/absl/base/nullability.h::794241::822::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 |   #794d | e f i n eT *a basbls_ln_onnunlullalb l_eN opntnru lAlB
S      L| _                     ^A
TTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* abIn file included from ss2/s2r2rect.ccl:_18n:
oIn file included from n../src/s2/s2r2rect.hn:u29l:
lIn file included from  ../src/s2/s1angle.hr:e28p:
)In file included from ;../src/s2/s2point.h
:      27| :
                                                       ^In file included from 
../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'119
:14:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n119e |   a bSstla_tnuosnRneupl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_intersection.cc:23:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_intersection.cc:23:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2r2rect.cc:18:
In file included from ../src/s2/s2r2rect.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnIn file included from us2/s2r2rect.ccl:l23 :
mIn file included from u../src/s2/s2cap.h):
31      :
| In file included from                                       ^../src/s2/s1chord_angle.h
:31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2pointutil.h241::2722:
: ../src/s2/util/math/matrix3x3.hnote: :expanded from macro 'absl_nonnull'276
:5:   241 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efine   276a | b s l _ nSo2n_nCuHlElC K__NNoEn(ndueltl,
       V| T                     ^y
pe(0)) << " Can't inverse. Determinant = 0In file included from .s2/s2region_term_indexer.cc":;75
:
      In file included from | ../src/s2/s2region_term_indexer.h    ^:
105:
In file included from ../src/s2/s2cell_id.h:43../src/s2/base/logging.h:
:In file included from 37../src/s2/s1angle.h::2128::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'S2_CHECK_NE'27
:
In file included from ../src/s2/s2coder.h   :3723 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :S292:
_In file included from C/usr/local/clang/include/absl/strings/cord.hH:E94C:
KIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hN:E31 :
C/usr/local/clang/include/absl/synchronization/mutex.hH:E1158C:K53_:N Ewarning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                     ^
 /usr/local/clang/include/absl/log/check.h1158: | 120 : 3 :   note:  expanded from macro 'CHECK_NE'M
ute  x120& |   m uA BASBLS_LL_OIGN_TIENRTNEARLN_AALT_TCRHIEBCUKT_EN_EC_AIPMTPULR(E(Dv_aBlY1()t,h i#sv)a,l
1      ,|                                                      ^~~~(
val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL/usr/local/clang/include/absl/synchronization/mutex.h_:L1166O:G39_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNAL _1166C | H E CeKx_pOlPi(cCihte cRke_lNeEa,s a!b=l,e Mvuatle1x,L ovcakl(1M_utteexxt*,  avbasll2_,n ovnanlu2l_lt emxut,) 
c      o| n  ^s
t C/usr/local/clang/include/absl/log/internal/check_op.ho:n68d:i22t:i onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'&
 co   n68d | ) 
       w| h                                      ^i
le /usr/local/clang/include/absl/base/nullability.h(:c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innuel laabbslle_ naobnsnlu_lllo g__Nionntneurlnla
l      _| c                     ^h
eck_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2region_term_indexer.ccs:l75_:
nIn file included from u../src/s2/s2region_term_indexer.hl:l105a:
bIn file included from l../src/s2/s2cell_id.he: 43_:
NIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he:
27      :
| In file included from                       ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2r2rect.ccf:i23n:
eIn file included from  ../src/s2/s2cap.ha:b31s:
lIn file included from _../src/s2/s1chord_angle.hn:u31l:
lIn file included from a../src/s2/s2pointutil.hb:l27e:
 ../src/s2/util/math/matrix3x3.h_:N276u:l5l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      | ../src/s2/base/logging.h                      ^:
37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.hIn file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::241::t22y:p enote: *expanded from macro 'absl_nonnull' 
abs  l241_ | n#udlelfaibniel iatbys_lu_nnkonnonwunl
l       | _                                           ^N
on/usr/local/clang/include/absl/base/nullability.hn:u289l:l34
:       | note:                      ^expanded from macro 'absl_nullability_unknown'

  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2region_union.cc:: 18:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2region_union.h
:28:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 82_:
NIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h
:      32| :
                     ^In file included from 
/usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal:In file included from :s2/s2region_term_indexer.ccV:a75l:
iIn file included from d../src/s2/s2region_term_indexer.hF:o105r:
mIn file included from a../src/s2/s2cell_id.ht:I43m:
pIn file included from l../src/s2/s1angle.h<:C28.:
.In file included from .../src/s2/s2point.h>:(27f:
oIn file included from r../src/s2/s2coder.hm:a23t:
)In file included from ,/usr/local/clang/include/absl/status/status.h
:      67| :
          ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_iIn file included from fs2/s2region_term_indexer.cc(:s75t:
rIn file included from _../src/s2/s2region_term_indexer.hf:o105r:
mIn file included from a../src/s2/s2cell_id.ht:_43i:
nIn file included from t../src/s2/s1angle.he:r28n:
aIn file included from l../src/s2/s2point.h:::27E:
nIn file included from s../src/s2/s2coder.hu:r23e:
CIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
eIn file included from x/usr/local/clang/include/absl/status/internal/status_internal.hp:r29(:
s/usr/local/clang/include/absl/strings/cord.h):,1301 :"56c:o nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
expr  1301t | rianpl"i)n,e
       v| o          ^i
d Cord::InlineRep::CommitTree(const CordRep* absl_nullabl/usr/local/clang/include/absl/strings/internal/str_format/bind.he: 149o:l22d:_ rwarning: e'enable_if' is a clang extension [-Wgcc-compat]p
,
      |                                                        ^  
149 |  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :_ _note: aexpanded from macro 'absl_nullable't
tr  i257b | u#tdee_f_i(n(ee naabbslle__niufl(lsatbrl_ef o_rNmualtl_aibnltee
r      n| a                      ^l
::EnsureCoIn file included from ns2/s2region_term_indexer.ccs:t75e:
xIn file included from p../src/s2/s2region_term_indexer.hr:(105s:
)In file included from ,../src/s2/s2cell_id.h
:      43| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |          /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 158 : 22 :   warning:  'enable_if' is a clang extension [-Wgcc-compat] 
       158  |              _ _ a t t r i b u tCeo_r_d(R(eepn*a balbes_li_fn(oVnanluildlF orrempa,t
I      m| p                                                 ^l
<A/usr/local/clang/include/absl/base/nullability.hr:g241s:.22.:. >note: (expanded from macro 'absl_nonnull's
),   241" | b#adde ffionrem aatb stlr_anpo"n)n)u)l
l       | _                     ^N
onnull
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(In file included from Vs2/s2region_term_indexer.cca:l75i:
dIn file included from F../src/s2/s2region_term_indexer.ho:r105m:
aIn file included from t../src/s2/s2cell_id.hI:m43p:
lIn file included from <../src/s2/s1angle.hA:r28g:
sIn file included from .../src/s2/s2point.h.:.27>:
(In file included from s../src/s2/s2coder.h):,23 :
"In file included from b/usr/local/clang/include/absl/status/status.ha:d67 :
fIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hr:m29a:
t/usr/local/clang/include/absl/strings/cord.h :t1312r:a38p:" )warning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])

      |                      ^
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2region_union.cco:n18n:
uIn file included from l../src/s2/s2region_union.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:In file included from 75s2/s2region_union.cc:
:In file included from 18../src/s2/s2region_term_indexer.h:
:In file included from 105../src/s2/s2region_union.h:
:In file included from 28../src/s2/s2cell_id.h:
:In file included from 43../src/s2/s2point.h:
:In file included from 27../src/s2/s1angle.h:
:In file included from 28../src/s2/s2coder.h:
:In file included from 23../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/cord.h:
:In file included from 82/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
:23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1666/usr/local/clang/include/absl/crc/crc32c.h::4832::
 /usr/local/clang/include/absl/strings/str_format.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]503
:20:  warning: 1666 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nli  n503e |   C oFrodr mCaotrRda:w:SAidnvka(nTc*e AanbdsRle_ando(nCnhualrlI trearwa)t o r/*/  aNbOsLlI_NnTo
n      n| u                   ^l
l /usr/local/clang/include/absl/base/nullability.hi:t241,:
22      :|                                                 ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/str_format/bind.h::27149:
:In file included from 22../src/s2/s2coder.h:: 23warning: :
'enable_if' is a clang extension [-Wgcc-compat]
/usr/local/clang/include/absl/status/status.h:1031:42  :149  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    _ _1031a | titnrliibnuet ec_o_n(s(te nsatbalteu_si_fi(nstterr_nfaolr:m:aStt_aitnutseRrenpa*l :a:bEsnls_unroenCnounlslt eSxtpart(uss):,:
R      e| p                     ^T
oPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl/usr/local/clang/include/absl/strings/internal/str_format/bind.h_:n158o:n22n:u lwarning: l'enable_if' is a clang extension [-Wgcc-compat] 
_Non  n158u | l l 
        |                       ^ 
__attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")In file included from )s2/s2region_term_indexer.cc):
75      :
| In file included from                      ^../src/s2/s2region_term_indexer.h
:105:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |  /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 162 :s22t:a twarning: u'enable_if' is a clang extension [-Wgcc-compat]s
_int  e162r | n a l : : S t_a_tautstRreipb*u taeb_s_l(_(neonnanbullel_ irfe(pV)a l{i
d      F| o                                ^r
ma/usr/local/clang/include/absl/base/nullability.ht:I241m:p22l:< Anote: rexpanded from macro 'absl_nonnull'g
s.  .241. | >#(dse)f,i n"eb aadb sflo_rnmoantn utlrla p_"N)o)n)n
u      l| l                     ^

      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2region_term_indexer.cca:b75s:
lIn file included from _../src/s2/s2region_term_indexer.hn:u105l:
lIn file included from a../src/s2/s2cell_id.hb:l43e:
 In file included from _../src/s2/s1angle.hN:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:

In file included from       ../src/s2/s2coder.h| :                      ^23
:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | cIn file included from os2/s2shape_index_buffered_region.ccn:s18t:
 In file included from c../src/s2/s2shape_index_buffered_region.hh:a23r:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o25n:
nIn file included from u../src/s2/util/coding/coder.hl:l36 :
SIn file included from t../src/s2/base/casts.ha:t34u:
sIn file included from M/usr/local/clang/include/absl/log/log.he:s209s:
aIn file included from g/usr/local/clang/include/absl/log/internal/log_impl.he:A22s:
C/usr/local/clang/include/absl/log/internal/log_message.hS:t161r:(38
:       | warning:             ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  161 |   LogMessage/usr/local/clang/include/absl/base/nullability.h&: 241o:p22e:r anote: texpanded from macro 'absl_nonnull'o
r<<(cons  t241  | v#odiedf*i naeb salb_snlu_lnloanbnluel l  v_)N o{n
n      u| l                                     ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2region_union.cc:  18241:
 | In file included from #../src/s2/s2region_union.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l86l:

      | /usr/local/clang/include/absl/strings/cord_analysis.h                     ^:
32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemIn file included from os2/s2shape_index_buffered_region.ccr:y18U:
sIn file included from a../src/s2/s2shape_index_buffered_region.hg:e23(:
cIn file included from o../src/s2/s1angle.hn:s28t:
 In file included from C../src/s2/s2point.ho:r25d:
RIn file included from ../src/s2/util/coding/coder.he:p36*:
 In file included from a../src/s2/base/casts.hb:s34l:
_In file included from n/usr/local/clang/include/absl/log/log.ho:n209n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl: 22r:
e/usr/local/clang/include/absl/log/internal/log_message.hp:)306;:
3      :|                                                         ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:  22306: |   note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  satbds:l:_unnoinqnuuel_lp t_rN<oLnonguMlels
s      a| g                     ^e
Data> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)In file included from  s2/s2shape_index_buffered_region.cc :/18/:
 In file included from N../src/s2/s2shape_index_buffered_region.hO:L23I:
NIn file included from T../src/s2/s1angle.h
:      28| :
                   ^In file included from 
../src/s2/s2point.h:25/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/util/coding/coder.h::2236::
 In file included from note: ../src/s2/base/casts.hexpanded from macro 'absl_nonnull':
34:
  In file included from 241/usr/local/clang/include/absl/log/log.h | :#209d:
eIn file included from f/usr/local/clang/include/absl/log/internal/log_impl.hi:n22e:
 a/usr/local/clang/include/absl/log/internal/log_message.hb:s319l:_20n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll _N  o319n | n u l l 
c      o| n                     ^s
t wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2region_coverer.cca:b18s:
lIn file included from _../src/s2/s2region_coverer.hn:u31l:
lIn file included from a../src/s2/s2cell.hb:l28e:
 In file included from _../src/s2/s1chord_angle.hN:u29l:
lIn file included from a../src/s2/s1angle.hb:l28e:

In file included from       ../src/s2/s2point.h| :                      ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: In file included from warning: s2/s2shape_index_buffered_region.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23  :
860In file included from  | ../src/s2/s1angle.h : 28f:
rIn file included from i../src/s2/s2point.he:n25d:
 In file included from v../src/s2/util/coding/coder.ho:i36d:
 In file included from A../src/s2/base/casts.hb:s34l:
FIn file included from o/usr/local/clang/include/absl/log/log.hr:m209a:
tIn file included from F/usr/local/clang/include/absl/log/internal/log_impl.hl:u22s:
h/usr/local/clang/include/absl/log/internal/log_message.h(:F400o:r17m:a twarning: Stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
nk*   400a | b s l _ ncoonnnsutl lv osiidn*k ,a
b      s| l                                          ^_
nul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  cnote: oexpanded from macro 'absl_nonnull'n
st  &241  | v#)d;e
f      i| n                ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257_ | N#odnenfuilnle
       a| b                     ^s
l_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::ForIn file included from ms2/s2shape_index_buffered_region.cca:t18S:
iIn file included from n../src/s2/s2shape_index_buffered_region.hk:I23m:
pIn file included from l../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_25n:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from  ../src/s2/base/casts.hs:i34n:
kIn file included from _/usr/local/clang/include/absl/log/log.h;:
209      :
| In file included from                                        ^/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/log_message.h241::42522::31 :note:  expanded from macro 'absl_nonnull'
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e425f | i n eL oagbMsels_snaognenFualtla l_(Ncoonnnsutl lc
h      a| r                     ^*
 absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullableIn file included from 
s2/s2region_coverer.cc      :| 18                      ^:

In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from In file included from ../src/s2/s1angle.hs2/s2shape_index_buffered_region.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2shape_index_buffered_region.h::2723:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6725:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/util/coding/coder.h::2936:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/casts.h::8636:
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/cord_analysis.h::2132:
:In file included from 47/usr/local/clang/include/absl/log/check.h:: 37:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:   5032: |  swarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]z
e_t   277G | e t E s t i m a t e d M e m o r y U s a g e ( c o n s t   C o r d R e p *  caobnsslt_ nvoonindu*l la brselp_)n;u
l      l| a                                              ^b
le /usr/local/clang/include/absl/base/nullability.hv:a241l:u22e:) ;note: 
expanded from macro 'absl_nonnull'      
|                                                  ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  _aNbosnln_unlull
l      a| b                     ^l
e _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.hIn file included from :s2/s2shape_index_buffered_region.cc28::
18In file included from :
../src/s2/s1chord_angle.hIn file included from :../src/s2/s2shape_index_buffered_region.h29::
23In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s1angle.h28::
28In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2point.h27::
25In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/util/coding/coder.h23::
36In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/base/casts.h67::
36In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h86::
37/usr/local/clang/include/absl/strings/cord_analysis.h:
:In file included from 50/usr/local/clang/include/absl/log/internal/check_impl.h::4921::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]278
:13:    warning: 50type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
siz  e278_ | tc oGnesttM ovroeiPdr*e caibsselM_enmuolrlyaUbslaeg eo(pceornastto rC<o<r(dsRtedp:*: oasbtsrle_anmo&n,n usltld :r:enpu)l;l
p      t| r                                                ^_
t)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22            ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:  23241: |  #note: dexpanded from macro 'absl_nullable'e
fi  n257e |  #adbesfli_nneo nanbuslll_ n_uNlolnanbullel 
_      N| u                     ^l
lable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(conIn file included from ss2/s2shape_index_buffered_region.cct: 18C:
oIn file included from r../src/s2/s2shape_index_buffered_region.hd:R23e:
pIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:
 In file included from r../src/s2/base/casts.he:p36):
;In file included from 
../src/s2/base/logging.h      :| 21                                                       ^:

In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/base/nullability.h37::
241In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h22::21 :
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
292:  13241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine   292a | bcsoln_snto ncnhualrl*  _aNbosnln_unloln
n      u| l                     ^l
 operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebuIn file included from gs2/s2shape_index_buffered_region.ccL:o18g:
(In file included from c../src/s2/s2shape_index_buffered_region.ho:23n:
sIn file included from t../src/s2/s1angle.h :c28h:
aIn file included from r../src/s2/s2point.h*: 25a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
uIn file included from l../src/s2/base/casts.hl:a36b:
lIn file included from e../src/s2/base/logging.h :n21a:
mIn file included from e/usr/local/clang/include/absl/log/check.h):;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                                  ^:
21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::257428::2344::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  257 | #  d428e | fAiBnSeL _aAbTsTlR_InBuUlTlEa_bRlEeT U_RNNuSl_lNaObNlNeU
L      L|                        ^c
onst char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2region_union.cce: 18a:
bIn file included from s../src/s2/s2region_union.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549In file included from :s2/s2shape_index_buffered_region.cc40::18 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2shape_index_buffered_region.h
:23:
In file included from ../src/s2/s1angle.h  :54928 | :
 In file included from  ../src/s2/s2point.hs:t25a:
tIn file included from i../src/s2/util/coding/coder.hc: 36v:
oIn file included from i../src/s2/base/casts.hd: 36I:
nIn file included from c../src/s2/base/logging.hr:e21m:
eIn file included from n/usr/local/clang/include/absl/log/check.ht:S37y:
nIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hh:S21e:
m/usr/local/clang/include/absl/log/internal/check_op.h(:M429u:t31e:x *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _429n | o    Tn1n uvl1l,  mTu2, 
v      2| ,                                       ^ 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la besxlp_rntoenxntu)l lA B_SNLo_nAnTuTlRlI
B      U| T                     ^E
_NOINLINE;
      |                               ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2region_union.cc::24118::
22In file included from :../src/s2/s2region_union.h :note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2point.h  :24127 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
 In file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hN:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l550l:
64      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                        In file included from  s2/s2shape_index_buffered_region.cc : 18 :
 In file included from  ../src/s2/s2shape_index_buffered_region.h : 23 :
bIn file included from a../src/s2/s1angle.hs:e28_:
iIn file included from n../src/s2/s2point.ht:e25r:
nIn file included from a../src/s2/util/coding/coder.hl::36::
PIn file included from e../src/s2/base/casts.hr:T36h:
rIn file included from e../src/s2/base/logging.ha:d21S:
yIn file included from n/usr/local/clang/include/absl/log/check.hc:h37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o432n:n13u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
);
        432|  |                                                                ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  aMbaskle_CnhoencnkuOlplS t_rNionngn(uTl1l 
v      1| ,                     ^ 
T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2region_union.cc:18:
In file included from   ../src/s2/s2region_union.h241: | 28#:
dIn file included from e../src/s2/s2point.hf:i27n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
_In file included from N/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shape_index_buffered_region.cc  :55118 | :
 In file included from  ../src/s2/s2shape_index_buffered_region.hs:t23a:
tIn file included from i../src/s2/s1angle.hc: 28b:
oIn file included from o../src/s2/s2point.hl: 25D:
eIn file included from c../src/s2/util/coding/coder.hr:e36m:
eIn file included from n../src/s2/base/casts.ht:S36y:
nIn file included from c../src/s2/base/logging.hh:S21e:
mIn file included from (/usr/local/clang/include/absl/log/check.hM:u37t:
eIn file included from x/usr/local/clang/include/absl/log/internal/check_impl.h*: 21a:
b/usr/local/clang/include/absl/log/internal/check_op.hs:l433_:n56o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l m  u433, | 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N ocnonnusltl 
c      h| a                     ^r
* absl_nonnIn file included from us2/s2region_union.ccl:l18 :
eIn file included from x../src/s2/s2region_union.hp:r28t:
eIn file included from x../src/s2/s2point.ht:)27 :
{In file included from 
../src/s2/s2coder.h      :| 23                                                       ^:

In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e552 :a64b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l552l |   _ N o n n u l l 
        |                       ^ 
                   base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: In file included from warning: s2/s2shape_index_buffered_region.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2shape_index_buffered_region.h:  23556:
 | In file included from  ../src/s2/s1angle.h :v28o:
iIn file included from d../src/s2/s2point.h :L25o:
cIn file included from k../src/s2/util/coding/coder.hS:l36o:
wIn file included from L../src/s2/base/casts.ho:o36p:
(In file included from S../src/s2/base/logging.hy:n21c:
hIn file included from W/usr/local/clang/include/absl/log/check.ha:i37t:
PIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hr:a21m:
s/usr/local/clang/include/absl/log/internal/check_op.h*: 451a:b1s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l451l |  AwBaSiLt_pL,O Gi_nItN TfElRaNgAsL)_;D
E      F| I                                     ^N
E_/usr/local/clang/include/absl/base/nullability.hM:A241K:E22_:C Hnote: Eexpanded from macro 'absl_nonnull'C
K_  O241P | _#SdTeRfIiNnGe_ EaXbTsElR_Nn(obnonoull)l; 
_      N| o^n
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l449
:      31| :                     ^ 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template cIn file included from os2/s2region_union.ccn:s18t:
 In file included from c../src/s2/s2region_union.hh:a28r:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
MIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hk:e29C:
hIn file included from e/usr/local/clang/include/absl/strings/cord.hc:k94O:
pIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.ht:r31i:
n/usr/local/clang/include/absl/synchronization/mutex.hg:(558 : 35 :\ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                              ^

/usr/local/clang/include/absl/base/nullability.h  :558241 | : 22 :b onote: oexpanded from macro 'absl_nonnull'l
 L  o241c | k#SdleofwiWniet haDbesald_lnionnen(uMlulH o_wN oanbnsull_ln
o      n| n                     ^u
ll how,In file included from 
s2/s2shape_index_buffered_region.cc      :| 18                                  ^:

In file included from ../src/s2/s2shape_index_buffered_region.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :../src/s2/s1angle.h22::28 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
25:
  In file included from 241../src/s2/util/coding/coder.h | :#36d:
eIn file included from f../src/s2/base/casts.hi:n36e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n451n:u1l:l 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  In file included from 450s2/s2region_union.cc | : 18 :
 In file included from  ../src/s2/s2region_union.h : 28x:
,In file included from  ../src/s2/s2point.hx:,27 :
cIn file included from o../src/s2/s2coder.hn:s23t:
 In file included from c/usr/local/clang/include/absl/status/status.hh:a67r:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31):

/usr/local/clang/include/absl/synchronization/mutex.h      :| 559                        ^:
46:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
559 |    241  |  # d e f in e   a b s l _ n o n n u l l   _ N o n n ucloln
s      t|                       ^C
ondition* absl_nullable cond,
      |                                              ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shape_index_buffered_region.cc::25718::
23In file included from :../src/s2/s2shape_index_buffered_region.h :23note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s1angle.h:28  :
257In file included from  | ../src/s2/s2point.h#:d25e:
fIn file included from i../src/s2/util/coding/coder.hn:e36 :
aIn file included from b../src/s2/base/casts.hs:l36_:
nIn file included from u../src/s2/base/logging.hl:l21a:
bIn file included from l/usr/local/clang/include/absl/log/check.he: 37_:
NIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e452
:      1| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DIn file included from Es2/s2region_union.ccF:I18N:
EIn file included from _../src/s2/s2region_union.hM:A28K:
EIn file included from _../src/s2/s2point.hC:H27E:
CIn file included from K../src/s2/s2coder.h_:O23P:
_In file included from S/usr/local/clang/include/absl/status/status.hT:R67I:
NIn file included from G/usr/local/clang/include/absl/status/internal/status_internal.h_:E29X:
TIn file included from E/usr/local/clang/include/absl/strings/cord.hR:N94(:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ht:6314:
_/usr/local/clang/include/absl/synchronization/mutex.ht:)562;:
23      :|  ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:449:31:   562note:  | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
 v  o449i | d   LeoxctkeSrlno wt(eMmupHloawt ea bcsoln_snto ncnhualrl*  haobws,l _cnoonnsntu lClo nMdaikteiCohne*c kaObpsSlt_rniunlgl(a b l e\ 
c      o| n                              ^d
,
/usr/local/clang/include/absl/base/nullability.h      :| 241                      ^:
22: /usr/local/clang/include/absl/base/nullability.h:note: 241expanded from macro 'absl_nonnull':
22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from In file included from s2/s2region_union.cc../src/s2/s2shape_index_buffered_region.h::1823:
:
In file included from In file included from ../src/s2/s2region_union.h../src/s2/s1angle.h::2828:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2725:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/util/coding/coder.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/casts.h::6736:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::9437:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::562452::581::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:  450562: | 25 :  vnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
d   L450o | c k S l o w (xM,u Hxo,w  caobnsslt_ ncohnanru*l la bhsolw_,n ocnonnusltl )C
o      n| d                        ^i
t/usr/local/clang/include/absl/base/nullability.hi:o241n:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#adbelfei nceo nadb,s
l      _| n                                                         ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nullable _NullIn file included from as2/s2shape_index_buffered_region.ccb:l18e:

In file included from       ../src/s2/s2shape_index_buffered_region.h| :                      ^23
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1In file included from :s2/s2region_union.cc :warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2region_union.h:28  :
453In file included from  | ../src/s2/s2point.hA:B27S:
LIn file included from _../src/s2/s2coder.hL:O23G:
_In file included from I/usr/local/clang/include/absl/status/status.hN:T67E:
RIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hA:L29_:
DIn file included from E/usr/local/clang/include/absl/strings/cord.hF:I94N:
EIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hM:A31K:
E/usr/local/clang/include/absl/synchronization/mutex.h_:C565H:E36C:K _warning: Otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]P
_STR  I565N | G _ EvXoTiEdR NU(nulionctk6S4l_otw)(;S
y      n| c^h
Wa/usr/local/clang/include/absl/log/internal/check_op.hi:t449P:a31r:a mnote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'*
 a  b449s | l _ neuxltlearbnl et ewmapiltapt)e  AcBoSnLs_tA TcThRaIrB*U TaEb_sClO_LnDo;n
n      u| l                                   ^l
 M/usr/local/clang/include/absl/base/nullability.ha:k257e:C23h:e cnote: kexpanded from macro 'absl_nullable'O
pS  t257r | i#ndge(f i n e\ 
a      b| s                              ^l
_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
_N  u241l | l#adbelfei
n      e|                        ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2region_union.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2region_union.h::45328::
1In file included from :../src/s2/s2point.h :warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_op.h::23450:
:In file included from 25/usr/local/clang/include/absl/status/status.h:: 67note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
450In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :x31,:
 /usr/local/clang/include/absl/synchronization/mutex.hx:,576 :c49o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
char  *576  | a b svlo_indo nTnruylRle)m
o      v| e                        ^(
b/usr/local/clang/include/absl/base/nullability.ha:s241e:_22i:n tnote: eexpanded from macro 'absl_nonnull'r
na  l241: | :#PdeerfTihnree aadbSsyln_cnho*n naublsll __nNoonnnnuullll 
s      )| ;                     ^

      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2shape_index_buffered_region.ccn:o18n:
nIn file included from u../src/s2/s2shape_index_buffered_region.hl:l23 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
25      :
| In file included from                      ^../src/s2/util/coding/coder.h
:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1In file included from :s2/s2region_union.cc :warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2region_union.h:28  :
454In file included from  | ../src/s2/s2point.hA:B27S:
LIn file included from _../src/s2/s2coder.hL:O23G:
_In file included from I/usr/local/clang/include/absl/status/status.hN:T67E:
RIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hA:L29_:
DIn file included from E/usr/local/clang/include/absl/strings/cord.hF:I94N:
EIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hM:A31K:
E/usr/local/clang/include/absl/synchronization/mutex.h_:C578H:E45C:K _warning: Otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
_ST  R578I | N G _vEoXiTdE RBNl(ofclko(abta)s;e
_      i| n^t
er/usr/local/clang/include/absl/log/internal/check_op.hn:a449l::31::P enote: rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'T
hre  a449d | S y necxht*e ranb stle_mnpolnantuel lc osn)s;t
       c| h                                            ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #MdaekfeiCnhee cakbOsplS_tnroinnngu(l l   _\N
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2region_union.ccl:_18n:
oIn file included from n../src/s2/s2region_union.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2shape_index_buffered_region.cc31::
18/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 580../src/s2/s2shape_index_buffered_region.h::3423::
 In file included from ../src/s2/s1angle.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:  25580:
 | In file included from  ../src/s2/util/coding/coder.h :b36a:
sIn file included from e../src/s2/base/casts.h_:i36n:
tIn file included from e../src/s2/base/logging.hr:n21a:
lIn file included from :/usr/local/clang/include/absl/log/check.h::P37e:
rIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hh:r21e:
a/usr/local/clang/include/absl/log/internal/check_op.hd:S454y:n1c:h *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
b/usr/local/clang/include/absl/log/internal/check_op.hs:l450_:n25u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
le   450W | a k e u p ( 
x      ,|                                   ^x
, /usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  cnote: hexpanded from macro 'absl_nullable'a
r*   257a | b#sdle_fnionnen ualbls)l
_      n| u                        ^l
l/usr/local/clang/include/absl/base/nullability.ha:b241l:e22 :_ Nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e#
d      e| f                      ^i
ne abslIn file included from _s2/s2region_union.ccn:o18n:
nIn file included from u../src/s2/s2region_union.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shape_index_buffered_region.cc581: | 18 :
 In file included from  ../src/s2/s2shape_index_buffered_region.h : 23 :
bIn file included from a../src/s2/s1angle.hs:e28_:
iIn file included from n../src/s2/s2point.ht:e25r:
nIn file included from a../src/s2/util/coding/coder.hl::36::
PIn file included from e../src/s2/base/casts.hr:T36h:
rIn file included from e../src/s2/base/logging.ha:d21S:
yIn file included from n/usr/local/clang/include/absl/log/check.hc:h37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o455n:n1u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
);
        455|  |                                      ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241L:O22G:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dDeEfFiInNeE _aMbAsKlE__nCoHnEnCuKl_lO P__NSoTnRnIuNlGl_
E      X| T                     ^E
RN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 | In file included from  s2/s2region_union.cc :e18x:
tIn file included from e../src/s2/s2region_union.hr:n28 :
tIn file included from e../src/s2/s2point.hm:p27l:
aIn file included from t../src/s2/s2coder.he: 23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67 :
cIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.ha:r29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l585 :M20a:k ewarning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
eckO  p585S | t r ivnogi(d   T r\a
n      s| (                              ^M
uH/usr/local/clang/include/absl/base/nullability.ho:w241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld ehfoiwn)e;  a b/s/l _unsoendn uflolr  _CNoonndnVualrl-
>      M| u                     ^t
ex traIn file included from ns2/s2shape_index_buffered_region.ccs:f18e:
rIn file included from 
../src/s2/s2shape_index_buffered_region.h      :| 23                   ^:

In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::25 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/util/coding/coder.h
:36  :
241In file included from  | ../src/s2/base/casts.h#:d36e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 455_:N1o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l/usr/local/clang/include/absl/log/internal/check_op.h
:      450| :                     ^25
: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, coIn file included from ns2/s2region_union.ccs:t18 :
cIn file included from h../src/s2/s2region_union.ha:r28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:)67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                        ^:
29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 586#:d43e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s586l | _ n ovnoniudl lF e_rN(obnansuel_li
n      t| e                     ^r
nal::PerThreadSynch* In file included from as2/s2shape_index_buffered_region.ccb:s18l:
_In file included from n../src/s2/s2shape_index_buffered_region.ho:n23n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                                           ^../src/s2/s2point.h
:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/util/coding/coder.h241::3622:
:In file included from  ../src/s2/base/casts.h:note: 36expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_456n:o1n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _N  o456n | nAuBlSlL
_      L| O                     ^G
_INTERNAL_DEFINE_MAKE_CIn file included from Hs2/s2region_union.ccE:C18K:
_In file included from O../src/s2/s2region_union.hP:_28S:
TIn file included from R../src/s2/s2point.hI:N27G:
_In file included from E../src/s2/s2coder.hX:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.h(:c67h:
aIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.h):;29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h^:
94:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h449::3131:
:/usr/local/clang/include/absl/synchronization/mutex.h :note: 590expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
40:   warning: 449type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
  e  x590t | e r ne xtpelmipcliatt eM uctoenxs(tc ocnhsatr *v oalbastli_lneo nMnuutlelx *M aakbesClh_encuklOlpaSbtlrei n/g*(i g n o\r
e      d| *                              ^/
) /usr/local/clang/include/absl/base/nullability.h{:}241
:      22| :                                       ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257  :24123 | :# dnote: eexpanded from macro 'absl_nullable'f
in  e257  | a#bdself_innoen naublsll __nNuolnlnaubllle
       _| N                     ^
ullablIn file included from es2/s2shape_index_buffered_region.cc
:      18| :
                      ^In file included from 
../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2region_union.ccd:e18f:
iIn file included from n../src/s2/s2region_union.he: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                     ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2shape_index_buffered_region.cc:  18624:
 | In file included from  ../src/s2/s2shape_index_buffered_region.h :e23x:
pIn file included from l../src/s2/s1angle.hi:c28i:
tIn file included from  ../src/s2/s2point.hM:u25t:
eIn file included from x../src/s2/util/coding/coder.hL:o36c:
kIn file included from (../src/s2/base/casts.hM:u36t:
eIn file included from x../src/s2/base/logging.h&: 21m:
In file included from u/usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:I21N:
T/usr/local/clang/include/absl/log/internal/check_op.hE:R458N:A1L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
R/usr/local/clang/include/absl/log/internal/check_op.hI:B450U:T25E:_ Cnote: Aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'P
TU  R450E | D _ B Y ( t hxi,s )x),
       c| o                                                                   ^~~~n
st char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define a/usr/local/clang/include/absl/synchronization/mutex.hb:s635l:_29n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _  N635o | n n uelxlp
l      i| c                     ^i
t MutexLock(Mutex* absl_nonnIn file included from us2/s2shape_index_buffered_region.ccl:l18 :
mIn file included from u../src/s2/s2shape_index_buffered_region.h): 23A:
BIn file included from S../src/s2/s1angle.hL:_28E:
XIn file included from C../src/s2/s2point.hL:U25S:
IIn file included from V../src/s2/util/coding/coder.hE:_36L:
OIn file included from C../src/s2/base/casts.hK:_36F:
UIn file included from N../src/s2/base/logging.hC:T21I:
OIn file included from N/usr/local/clang/include/absl/log/check.h(:m37u:
)In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                            ^:

/usr/local/clang/include/absl/log/internal/check_op.h:459/usr/local/clang/include/absl/base/nullability.h::1241:: 22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  459   | 241A | B#SdLe_fLiOnGe_ IaNbTsElR_NnAoLn_nDuElFlI N_EN_oMnAnKuEl_lC
H      E| C                     ^K
_OP_STRING_EXTERN(const absl::string_view&In file included from )s2/s2region_union.cc;:
18      :
| In file included from ^../src/s2/s2region_union.h
:28/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 449../src/s2/s2point.h::3127::
 In file included from note: ../src/s2/s2coder.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
23:
In file included from   /usr/local/clang/include/absl/status/status.h449: | 67 :
 In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:t29e:
rIn file included from n/usr/local/clang/include/absl/strings/cord.h :t94e:
mIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.hl:a31t:
e/usr/local/clang/include/absl/synchronization/mutex.h :c641o:n68s:t  warning: c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h
ar* absl  _641n | o n neuxlpll iMcaikte CMhuetcekxOLpoSctkr(iMnugt(e x &  \m
u       | A                              ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_A  T241T | R#IdBeUfTiEn_eC AaPbTsUlR_EnDo_nBnYu(ltlh i_sN)o,n
n      u| l                                                                   ^~~~l

      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 649/usr/local/clang/include/absl/log/check.h::2937::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
/usr/local/clang/include/absl/log/internal/check_op.h:459  :6491 | :   warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
p/usr/local/clang/include/absl/log/internal/check_op.hl:i450c:i25t:  Mnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
te  x450L | o c k ( M u txe,x *x ,a bcsoln_snto ncnhualrl*  maub,s lc_onnosntn uCloln)d
i      t| i                        ^o
n&/usr/local/clang/include/absl/base/nullability.h :c241o:n22d:) 
note:       expanded from macro 'absl_nonnull'| 
                            ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bsl_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:In file included from 25s2/s2region_union.cc:
:In file included from 18../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/s2region_union.h:
:In file included from 28../src/s2/base/casts.h:
:In file included from 36../src/s2/s2point.h:
:In file included from 27../src/s2/base/logging.h:
:In file included from 21../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/log/internal/check_op.h29::
460In file included from :/usr/local/clang/include/absl/strings/cord.h66::94 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h460: | 670A:B74S:L _warning: L'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]O
G_INT  E670R | N A Le_xDpElFiIcNiEt_ MRAeKaEd_eCrHMEuCtKe_xOLPo_cSkT(RMIuNtGe_xE&X TmEuR NA(BcSoLn_sItN TcEhRaNrA*L _aAbTsTlR_InBoUnTnEu_lClA)P;T
U      R| E                                                                 ^D
_B/usr/local/clang/include/absl/base/nullability.hY:(241t:h22i:s )note: )expanded from macro 'absl_nonnull'

      |                                                                            ^~~~241
 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2shape_index_buffered_region.cc678::1835:
:In file included from  ../src/s2/s2shape_index_buffered_region.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
In file included from   ../src/s2/s2point.h678: | 25 :
 In file included from e../src/s2/util/coding/coder.hx:p36l:
iIn file included from c../src/s2/base/casts.hi:t36 :
RIn file included from e../src/s2/base/logging.ha:d21e:
rIn file included from M/usr/local/clang/include/absl/log/check.hu:t37e:
xIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.ho:c21k:
(/usr/local/clang/include/absl/log/internal/check_op.hM:u460t:e66x:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
s/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 m  u241) |  #AdBeSfLi_nSeH AaRbsl_nEoDn_nLuOlClK __FNUoNnCnTuIlOlN
(      m| u                     ^)

      |                                   ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2shape_index_buffered_region.cc241::1822:
:In file included from  ../src/s2/s2shape_index_buffered_region.h:note: 23expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h:  28241:
 | In file included from #../src/s2/s2point.hd:e25f:
iIn file included from n../src/s2/util/coding/coder.he: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.h_:N37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 460                     ^:
1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAIn file included from Ks2/s2region_union.ccE:_18C:
HIn file included from E../src/s2/s2region_union.hC:K28_:
OIn file included from P../src/s2/s2point.h_:S27T:
RIn file included from I../src/s2/s2coder.hN:G23_:
EIn file included from X/usr/local/clang/include/absl/status/status.hT:E67R:
NIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h :c94h:
aIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.h*: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l681_:n74o:n nwarning: u'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
l);
        | 681^ | 
  /usr/local/clang/include/absl/log/internal/check_op.he:x450p:l25i:c inote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
Re  a450d | e r M u t e xxL,o cxk,( Mcuotnesxt&  cmhua rA*B SaLb_sIlN_TnEoRnNnAuLl_lA)T
T      R| I                        ^B
UT/usr/local/clang/include/absl/base/nullability.hE:_241C:A22P:T Unote: Rexpanded from macro 'absl_nonnull'E
D_  B241Y | (#tdheifsi)n,e
       a| b                                                                         ^~~~s
l_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shape_index_buffered_region.cc:  18689:
 | In file included from  ../src/s2/s2shape_index_buffered_region.h :e23x:
pIn file included from l../src/s2/s1angle.hi:c28i:
tIn file included from  ../src/s2/s2point.hR:e25a:
dIn file included from e../src/s2/util/coding/coder.hr:M36u:
tIn file included from e../src/s2/base/casts.hx:L36o:
cIn file included from k../src/s2/base/logging.h(:M21u:
tIn file included from e/usr/local/clang/include/absl/log/check.hx:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:461n:n1u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
u,   c461o | nAsBtS LC_oLnOdGi_tIiNoTnE&R NcAoLn_dD)E
F      I| N                                  ^E
_M/usr/local/clang/include/absl/base/nullability.hA:K241E:_22C:H Enote: Cexpanded from macro 'absl_nonnull'K
_O  P241_ | S#TdReIfNiGn_eE XaTbEsRlN_(n
o      n| n^u
ll/usr/local/clang/include/absl/log/internal/check_op.h :_449N:o31n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l

      |                        ^449
 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from ../src/s2/base/casts.hs2/s2region_union.cc::3618:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2region_union.h::2128:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2point.h::3727:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2coder.h::2123:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h462::6724:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::24194::
22In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  710241: | 74#:d ewarning: f'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
ne ab  s710l | _ n oenxnpullilc i_tN oWnrniutlelr
M      u| t                     ^e
xLocIn file included from ks2/s2shape_index_buffered_region.cc(:M18u:
tIn file included from e../src/s2/s2shape_index_buffered_region.hx:&23 :
mIn file included from u../src/s2/s1angle.h :A28B:
SIn file included from L../src/s2/s2point.h_:I25N:
TIn file included from E../src/s2/util/coding/coder.hR:N36A:
LIn file included from _../src/s2/base/casts.hA:T36T:
RIn file included from I../src/s2/base/logging.hB:U21T:
EIn file included from _/usr/local/clang/include/absl/log/check.hC:A37P:
TIn file included from U/usr/local/clang/include/absl/log/internal/check_impl.hR:E21D:
_/usr/local/clang/include/absl/log/internal/check_op.hB:Y461(:t1h:i swarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      |                                                                            ^~~~461
 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHEC/usr/local/clang/include/absl/synchronization/mutex.hK:_718O:P35_:S Twarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NG_  E718X | T E ReNx(p
l      i| c^i
t/usr/local/clang/include/absl/log/internal/check_op.h :W450:r25i:t enote: rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'M
ut  e450x | L o c k ( M uxt,e xx*,  acbosnls_tn ocnhnaurl*l  ambus)l
_      n| o                                  ^n
nul/usr/local/clang/include/absl/base/nullability.hl:)241
:      22| :                        ^ 
note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23In file included from :
s2/s2region_union.ccIn file included from :../src/s2/s1angle.h18::
28In file included from :
../src/s2/s2region_union.hIn file included from :../src/s2/s2point.h28::
25In file included from :
../src/s2/s2point.hIn file included from :../src/s2/util/coding/coder.h27::
36In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/base/casts.h23:In file included from :
36s2/s2region.ccIn file included from :
:/usr/local/clang/include/absl/status/status.hIn file included from 18:../src/s2/base/logging.h:
67:In file included from :
21../src/s2/s2region.hIn file included from :
:/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from 24:/usr/local/clang/include/absl/log/check.h:
29:In file included from :
37../src/s2/s1angle.hIn file included from :
:/usr/local/clang/include/absl/strings/cord.hIn file included from 28:/usr/local/clang/include/absl/log/internal/check_impl.h:
94:In file included from :
21../src/s2/s2point.hIn file included from :
:/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_op.h25:::
31463In file included from :
:/usr/local/clang/include/absl/synchronization/mutex.h../src/s2/util/coding/coder.h1:::72236 ::
warning: 74In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:../src/s2/base/casts.h
 :34warning: :
  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 463
/usr/local/clang/include/absl/log/log.h | :A209B  :
S722In file included from L | /usr/local/clang/include/absl/log/internal/log_impl.h_ : L22eO:
xGIn file included from p_l/usr/local/clang/include/absl/log/internal/log_message.hiI:cN53iT:
tE RW/usr/local/clang/include/absl/types/source_location.hNrA:Li113t_:eD19rE:MF uIwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Ne
Ex_LMo  Ac113kK | ( ME u _tC eH xE &cC omKnu_s tOA BPcShL_a_SrIT*N TRaEbRIsNlAN_Ln_GoAn_TnTEuRXlIlBT UfTEiERl_NeC(_An
P      T| U^R
ED/usr/local/clang/include/absl/log/internal/check_op.h_:B449Y:(31t:h inote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN')
,
        | 449                                                                         ^~~~ | 
  extern template const char* absl_/usr/local/clang/include/absl/synchronization/mutex.hn:o731n:n35u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
akeC  h731e | c k OepxSptlriicnigt(  W r i\t
e      r| M                              ^u
t/usr/local/clang/include/absl/base/nullability.he:x241L:o22c:k (note: Mexpanded from macro 'absl_nonnull'u
te  x241* |  #adbesfli_nneo nanbuslll_ nmoun,n ucloln s_tN oCnonnudlilt
i      o| n                     ^&
 condIn file included from )s2/s2shape_index_buffered_region.cc
:      18| :
                                  ^In file included from 
../src/s2/s2shape_index_buffered_region.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from ../src/s2/util/coding/coder.h  :24136 | :
#In file included from d../src/s2/base/casts.he:f36i:
nIn file included from e../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 /usr/local/clang/include/absl/log/internal/check_op.h_:N464o:n26n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                        ^464
 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRIn file included from Is2/s2region_union.ccN:G18_:
EIn file included from X../src/s2/s2region_union.hT:E28R:
NIn file included from (../src/s2/s2point.h
:      27| :
^In file included from 
../src/s2/s2coder.h:/usr/local/clang/include/absl/log/internal/check_op.h23::
450In file included from :/usr/local/clang/include/absl/status/status.h25::67 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/status/internal/status_internal.h
:29  :
450In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h :x31,:
 x/usr/local/clang/include/absl/synchronization/mutex.h,: 801c:o20n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
har*   801a | b s lC_onnodnintuiloln)(
b      o| o                        ^l
 /usr/local/clang/include/absl/base/nullability.h(:*absl241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   241f | u#ndce)f(ivnoei da*b salb_snlo_nnnuulllla b_iNlointnyu_luln
k      n| o                     ^w
n),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2shape_index_buffered_region.cci:n18e:
 In file included from a../src/s2/s2shape_index_buffered_region.hb:s23l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 25_:
NIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h
:      36| :
                     ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2region_union.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2region_union.h::46528::
1In file included from :../src/s2/s2point.h :warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23:
  In file included from 465/usr/local/clang/include/absl/status/status.h | :A67B:
SIn file included from L/usr/local/clang/include/absl/status/internal/status_internal.h_:L29O:
GIn file included from _/usr/local/clang/include/absl/strings/cord.hI:N94T:
EIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hN:A31L:
_/usr/local/clang/include/absl/synchronization/mutex.hD:E801F:I45N:E _warning: Mtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]A
KE_  C801H | E C KC_oOnPd_iStTiRoInN(Gb_oEoXlT E(R*Na(bcsoln_snto nvnouildl*  faubnscl)_(nvoonindu*l la)b;s
l      _| n^u
ll/usr/local/clang/include/absl/log/internal/check_op.ha:b449i:l31i:t ynote: _expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'u
nkn  o449w | n ) ,e
x      t| e                                            ^r
n /usr/local/clang/include/absl/base/nullability.ht:e289m:p34l:a tnote: eexpanded from macro 'absl_nullability_unknown' 
co  n289s | t# dcehfairn*e  aabbssll__nnounlnlualbli lMiatkye_CuhnekcnkoOwpnS t_rNiunlgl(_ u n s\p
e      c| i                              ^f
ie/usr/local/clang/include/absl/base/nullability.hd:
241      :| 22                                 ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2region_union.ccs:l18_:
nIn file included from o../src/s2/s2region_union.hn:n28u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2shape_index_buffered_region.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2shape_index_buffered_region.h::3123:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s1angle.h802::2819:
:In file included from  ../src/s2/s2point.h:warning: 25:
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
  In file included from 802../src/s2/base/logging.h | : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
v/usr/local/clang/include/absl/log/internal/check_op.ho:i465d:*66 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l465l | aAbBiSlLi_tLyO_Gu_nIkNnToEwRnN AaLr_gD)E;F
I      N| E                  ^_
MA/usr/local/clang/include/absl/base/nullability.hK:E289_:C34H:E Cnote: Kexpanded from macro 'absl_nullability_unknown'_
OP  _289S | T#RdIeNfGi_nEeX TaEbRsNl(_cnounlslta bvioliidt*y _aubnskln_onwonn n_uNlull)l;_
u      n| s                                                                 ^p
ec/usr/local/clang/include/absl/base/nullability.hi:f241i:e22d:
       note: | expanded from macro 'absl_nonnull'                                 ^

  241 | #define absl_nonnull _NoIn file included from ns2/s2region_union.ccn:u18l:
lIn file included from 
../src/s2/s2region_union.h      :| 28                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2shape_index_buffered_region.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2shape_index_buffered_region.h/usr/local/clang/include/absl/status/internal/status_internal.h::2329:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/strings/cord.h::2894:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2531:
:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/synchronization/mutex.h::36814:
:In file included from 20../src/s2/base/casts.h:: 36:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :81437 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hC:o21n:
d/usr/local/clang/include/absl/log/internal/check_op.hi:t465i:o66n:( bwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
l/usr/local/clang/include/absl/base/nullability.h :(241*:a22b:s lnote: _expanded from macro 'absl_nonnull'n
oanm  neu241 l=l |   #_fd_ubnecuf)ii(lTnt*ie na basb_lFs_lIn_LuEnl(oln)an)b ui{ll
il      t | y                  ^__
uNnoknn/usr/local/clang/include/absl/base/nullability.hon:wu241nl:)l22,
:
             | note: | expanded from macro 'absl_nonnull'                   ^                     ^


/usr/local/clang/include/absl/base/nullability.h  :241241In file included from  | :s2/s2shape_index_buffered_region.cc#22d::e18 f:
note: iexpanded from macro 'absl_nonnull'In file included from n
e../src/s2/s2shape_index_buffered_region.h   :241a23 | b#:
sdlIn file included from e_f../src/s2/s1angle.hnio:nne28 n:
aubIn file included from l../src/s2/s2point.hsll: _25_nNo:
onIn file included from nnn../src/s2/util/coding/coder.huul:lll36 
_:
      NIn file included from | o                     ^n../src/s2/base/casts.h
n:u36l:
lIn file included from 
../src/s2/base/logging.h      :| 21                     ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2region_union.cc::46518::
1In file included from :../src/s2/s2region_union.h :warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27  :
465In file included from  | ../src/s2/s2coder.hA:B23S:
LIn file included from _/usr/local/clang/include/absl/status/status.hL:OIn file included from 67Gs2/s2region.cc:
_:In file included from I/usr/local/clang/include/absl/status/internal/status_internal.hN:18T29:
E:
In file included from RIn file included from ../src/s2/s2region.hN/usr/local/clang/include/absl/strings/cord.h:A:24L94:
_:
In file included from DIn file included from ../src/s2/s1angle.hE/usr/local/clang/include/absl/strings/internal/cordz_info.h:F:28I31:
N:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hE../src/s2/s2point.h:_:814M25:A:
42KIn file included from :E../src/s2/util/coding/coder.h _:Cwarning: 36type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]H:

EIn file included from C../src/s2/base/casts.hK  :_814O34 | P :
 _In file included from CS/usr/local/clang/include/absl/log/log.hoTn:Rd209Ii:
tNIn file included from iG/usr/local/clang/include/absl/log/internal/log_impl.ho_:nE22(X:
bTIn file included from oE/usr/local/clang/include/absl/log/internal/log_message.hoR:lN53 (:
(/usr/local/clang/include/absl/types/source_location.hc*:ao133bn:ss25lt:_  nvowarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oniu
ldl*    fa133ub | n sc )lc(o_Tn*n osatnbesnxlup_lrn lucl)oln;asb
ti       l| cih^tay
r_*u/usr/local/clang/include/absl/log/internal/check_op.h na:kbn450sol:w_n25n):o,n
 n      unote: | expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l                                         ^l

   f/usr/local/clang/include/absl/base/nullability.hi450:l | 289e :_ 34n :a  m note: e expanded from macro 'absl_nullability_unknown'(x
),  c  xo289,n |  #sdcteof innnosee txac becsplht_a nr{u
*l      l | a                        ^ab
ibls/usr/local/clang/include/absl/base/nullability.hil:t_241yn:_o22un:nn kunnote: loexpanded from macro 'absl_nonnull'wl
n)   _
241N       | u#| ldl                        ^e_f
ui/usr/local/clang/include/absl/base/nullability.hnn:se241p e:acb22isf:li _ennote: doexpanded from macro 'absl_nonnull'
n
      n|   u                                 ^l241
l |  #_dNeofninnuel lIn file included from a
s2/s2region_union.ccb      :s| 18                     ^l:

_In file included from n../src/s2/s2region_union.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27_:
In file included from NIn file included from s2/s2region.cco../src/s2/s2coder.h:n:18n23:
u:
lIn file included from lIn file included from ../src/s2/s2region.h
/usr/local/clang/include/absl/status/status.h:      :24| 67:
                     ^:
In file included from 
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/internal/status_internal.h::2829:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::2594:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::3631:
:
In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/synchronization/mutex.h::34815:
:In file included from 16/usr/local/clang/include/absl/log/log.h:: 209:
warning: In file included from /usr/local/clang/include/absl/log/internal/log_impl.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h  :81553 | :
 /usr/local/clang/include/absl/types/source_location.h : 142 : 25 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  T  *142  | a b sclo_nnsutIn file included from les2/s2shape_index_buffered_region.cclx:apb18ri :
lciIn file included from otn../src/s2/s2shape_index_buffered_region.hys_:tu23 nc:
khnIn file included from aor../src/s2/s1angle.hw*:n  aa28brsg:
l)_In file included from ;n
../src/s2/s2point.ho      n:| n               ^25u
l:
/usr/local/clang/include/absl/base/nullability.hlIn file included from : ../src/s2/util/coding/coder.h289f::u3634n:
:cIn file included from  t../src/s2/base/casts.hinote: o:expanded from macro 'absl_nullability_unknown'n36
_:
nIn file included from   a../src/s2/base/logging.h289m: | e21#(:
d)In file included from e f/usr/local/clang/include/absl/log/check.hci:onn37es:
 taIn file included from  bn/usr/local/clang/include/absl/log/internal/check_impl.hso:le_21xn:
c/usr/local/clang/include/absl/log/internal/check_op.hue:lpl502ta b:{i
1l      i:| t                         ^ywarning: 
_type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
/usr/local/clang/include/absl/base/nullability.hn:k241  n:502o22 | w:nA Bnote:  S_expanded from macro 'absl_nonnull'L
N_  uL241lOl | G_#u_dneIsfpNieTncEei faRibNesdAl
_L      n_| oC                                 ^nH
nEuClKl_ O_PN_oInMnPuLl(lC
h      In file included from e| s2/s2region_union.cc                     ^c:
k18_:
EIn file included from Q../src/s2/s2region_union.h,: 28=:
=In file included from )../src/s2/s2point.h
:      27| :
^In file included from 
In file included from ../src/s2/s2coder.hs2/s2region.cc/usr/local/clang/include/absl/log/internal/check_op.h:::2318488:
:
:In file included from In file included from 32/usr/local/clang/include/absl/status/status.h../src/s2/s2region.h::: 6724note: :
:
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s1angle.h::29  28:
488:
In file included from  | In file included from /usr/local/clang/include/absl/strings/cord.h ../src/s2/s2point.h: :94i25:
n:
In file included from lIn file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hi../src/s2/util/coding/coder.h:n:31e36:
 :
/usr/local/clang/include/absl/synchronization/mutex.hcIn file included from :o../src/s2/base/casts.h830n::s3414t:
:eIn file included from  x/usr/local/clang/include/absl/log/log.hwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:r
209 :
cIn file included from   o/usr/local/clang/include/absl/log/internal/log_impl.h830n: | s22 t:
  In file included from  c/usr/local/clang/include/absl/log/internal/log_message.h h: a53 rb:
*/usr/local/clang/include/absl/types/source_location.ho :oa150lb: s40(l:*_ anbwarning: ustype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ll
l_an  bo150ln | ne u l nl a  mfe u n#c #) (I T *m   ap b sl l _( n u  l l  a  b i  l  i t  yc_ ounn s kt n  oc wh na) ,r 
*         | a             ^ b
 s\/usr/local/clang/include/absl/base/nullability.hl
:_      241n| :o                               ^22n
:n u/usr/local/clang/include/absl/base/nullability.hnote: l:expanded from macro 'absl_nonnull'l257
 :f  i23241l: | e _#nnote: daeexpanded from macro 'absl_nullable'mfe
i)  n
257e       |  | a#                                       ^bd
sel/usr/local/clang/include/absl/base/nullability.h_f:ni241no:ne22n :ua lblnote:  sexpanded from macro 'absl_nonnull'_l
N_o  nn241un | ul#ldllea
fb      il|                      ^
e _NulIn file included from ls2/s2region_union.cca:b18l:
eIn file included from 
../src/s2/s2region_union.h      :| 28                      ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2shape_index_buffered_region.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2shape_index_buffered_region.h::3123:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s1angle.h830::2836:
:In file included from  ../src/s2/s2point.h:warning: 25type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/coding/coder.h:36  :
830In file included from  | ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h :b21o:
oIn file included from l/usr/local/clang/include/absl/log/check.h :(37*:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n502n:u1l:l  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
n/usr/local/clang/include/absl/log/internal/check_op.hc:)489(:T47*:  anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
l_n  u489l | l a b i l i tcyo_nusntk nTo1w&n )v,1
,       | c                                   ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 289T:234&:  vnote: 2expanded from macro 'absl_nullability_unknown',
 c  o289n | s#td ecfhianre*  aabbssll__nnuolnlnaublill ietxyp_rutnekxnto)w n{  _ N u l l\_
u      n| s                                              ^p
ec/usr/local/clang/include/absl/base/nullability.hi:f241i:e22d:
       note: | expanded from macro 'absl_nonnull'                                 ^

  241 | #define absl_nonnull _NonnIn file included from us2/s2region_union.ccl:l18
:
      In file included from | ../src/s2/s2region_union.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nulIn file included from ls2/s2shape_index_buffered_region.cca:b18i:
lIn file included from i../src/s2/s2shape_index_buffered_region.ht:y23_:
uIn file included from n../src/s2/s1angle.hk:n28o:
wIn file included from n../src/s2/s2point.h :_25N:
uIn file included from l../src/s2/util/coding/coder.hl:_36u:
nIn file included from s../src/s2/base/casts.hp:e36c:
iIn file included from f../src/s2/base/logging.hi:e21d:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                 ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |  In file included from  s2/s2region_union.cci:n18l:
iIn file included from n../src/s2/s2region_union.he: 28c:
oIn file included from n../src/s2/s2point.hs:t27e:
xIn file included from p../src/s2/s2coder.hr: 23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67 :
cIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.ha:r29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l844e: 10n:a mwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
#Im  p844l | (            T *   a b s l _ n o n n u l\l
       o| b                               ^j
ec/usr/local/clang/include/absl/base/nullability.ht:,257
:      23| :         ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241  :25722 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innuel laabbslle_ n_oNnunlullalb l_eN
o      n| n                      ^u
ll
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from s2/s2region_union.cc../src/s2/base/casts.h::1836:
:
In file included from In file included from ../src/s2/s2region_union.h../src/s2/base/logging.h::2821:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/check.h::2737:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::50267::
1In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h::94498:
:In file included from 35/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/synchronization/mutex.h
:845:45  :498  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      845i |  n t   v 1 ,b oionlt  (va2b,s lc:o:ntsytp ec_hiadre*n taibtsyl<_Tn>o:n:ntuylple :e:x*p ratbesxlt_)n o{n n u l l   m e t h o d ) ( ) ) ; 
\      
|                                                   ^| 
                                  ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulln _Neo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2region.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2region.h::9424:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s1angle.h::3128:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2point.h::88625::
31In file included from :../src/s2/util/coding/coder.h :36warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/casts.h
:34:
In file included from /usr/local/clang/include/absl/log/log.h  :886209 | :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.he:x22p:
lIn file included from i/usr/local/clang/include/absl/log/internal/log_message.hc:i53t:
 /usr/local/clang/include/absl/types/source_location.hC:o165n:d15i:t iwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
(co  n165s | t   Tc*o nasbts lc_hnaorn*n ualbls lo_bnjo)n
n      u| l                              ^l
 f/usr/local/clang/include/absl/base/nullability.hi:l241e:_22n:a mnote: eexpanded from macro 'absl_nonnull'_
 =   241" | "#;d
e      f| i              ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GIn file included from us2/s2region.cca:r18a:
nIn file included from t../src/s2/s2region.he:e24d:
EIn file included from q../src/s2/s1angle.hu:a28l:
(In file included from c../src/s2/s2point.ho:n25s:
tIn file included from  ../src/s2/util/coding/coder.hC:o36n:
dIn file included from i../src/s2/base/casts.ht:i34o:
nIn file included from */usr/local/clang/include/absl/log/log.h :a209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h_:n22u:
l/usr/local/clang/include/absl/log/internal/log_message.hl:a71b:l26e:  awarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                ^
   71 | /usr/local/clang/include/absl/base/nullability.h : 257L:o23g:M enote: sexpanded from macro 'absl_nullable's
ag  e257( | c#odnesfti nceh aarb*s la_bnsull_lnaobnlneu l_lN uflillaeb,l ei
n      t|                        ^l
ine,
      |                          ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2region_union.cc::24118::
22In file included from :../src/s2/s2region_union.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n923u:l48l:
       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  923 |                               const Condition* absl_nuIn file included from ls2/s2region.ccl:a18b:
lIn file included from e../src/s2/s2region.h :b24):
;In file included from 
../src/s2/s1angle.h      :| 28                                               ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h25::
257In file included from :../src/s2/util/coding/coder.h23::36 :
In file included from note: ../src/s2/base/casts.hexpanded from macro 'absl_nullable':
34:
In file included from   /usr/local/clang/include/absl/log/log.h257: | 209#:
dIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.hf:i22n:
e/usr/local/clang/include/absl/log/internal/log_message.h :a78b:s26l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab   l78e |   _ NLuolglMaebslsea
g      e| (                      ^c
onst char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2region_union.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2region_union.h | :#28d:
eIn file included from f../src/s2/s2point.hi:n27e:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29_:
NIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                     ^/usr/local/clang/include/absl/synchronization/mutex.h
:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullaIn file included from bs2/s2region.ccl:e18 :
eIn file included from v../src/s2/s2region.ha:l24_:
)In file included from (../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :C25o:
nIn file included from d../src/s2/util/coding/coder.hi:t36i:
oIn file included from n../src/s2/base/casts.h*: 34a:
bIn file included from s/usr/local/clang/include/absl/log/log.hl:_209n:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hn:u22l:
l/usr/local/clang/include/absl/log/internal/log_message.h): 80=: 26n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
tr;   
80       | |           ^ 
Log/usr/local/clang/include/absl/base/nullability.hM:e257s:s23a:g enote: (expanded from macro 'absl_nullable'c
on  s257t |  #cdheafri*n ea basbls_ln_onnunlullalb lfei l_eN,u lilnatb llei
n      e| ,                      ^

      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2region_union.cc:: 18:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2region_union.h
:28:
  In file included from 241../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94_:
NIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:
948      :| 48                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nIn file included from us2/s2region.ccl:l18a:
bIn file included from l../src/s2/s2region.he: 24e:
vIn file included from a../src/s2/s1angle.hl:_28):
(In file included from c../src/s2/s2point.ho:n25s:
tIn file included from  ../src/s2/util/coding/coder.hC:o36n:
dIn file included from i../src/s2/base/casts.ht:i34o:
nIn file included from */usr/local/clang/include/absl/log/log.h :a209b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h_:n22o:
n/usr/local/clang/include/absl/log/internal/log_message.hn:u82l:l26):  =warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   p82t | r ; 
L      o| g                                               ^M
es/usr/local/clang/include/absl/base/nullability.hs:a241g:e22(:c onote: nexpanded from macro 'absl_nonnull's
t   c241h | a#rd*e faibnsel _anbosnln_unloln nfuillle ,_ Nionntn ulliln
e      ,| 
                     ^      
|                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2region_union.ccn:e18 :
aIn file included from b../src/s2/s2region_union.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2region.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2region.h:
:In file included from 24/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2point.h:
:25/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defi954ne a:b52s:l _nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null _N  o954n | n u lslt
a      t| i                     ^c
 bool CallVoidPtrFunction(const ConditionIn file included from *s2/s2region.cc :a18b:
sIn file included from l../src/s2/s2region.h_:n24o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from c../src/s2/s2point.h):;25
:
      In file included from | ../src/s2/util/coding/coder.h                                                   ^:
36:
In file included from ../src/s2/base/casts.h:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/log.h::22209::
 In file included from /usr/local/clang/include/absl/log/internal/log_impl.hnote: :expanded from macro 'absl_nonnull'22
:
/usr/local/clang/include/absl/log/internal/log_message.h  :241121 | :#41d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
eIn file included from    s2/s2region_term_indexer.cca121:b75 | s:
 lIn file included from  ../src/s2/s2region_term_indexer.h_L:no106og:
nMIn file included from ne../src/s2/s2cell_union.hus:ls29la:
 gIn file included from _e/usr/local/clang/include/absl/flags/flag.hN&:o 40nT:
nou/usr/local/clang/include/absl/flags/commandlineflag.hSl:il163n
:k      56O| :n                     ^ l
warning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
absl  :163: | L o gbSoionlk *P aarbsselF_rnoomn(naublsll :s:isntkr)iIn file included from ;ns2/s2region_union.cc
g:      _18| v:
                                        ^iIn file included from 
e../src/s2/s2region_union.hw:/usr/local/clang/include/absl/base/nullability.h 28:v:
241aIn file included from :l../src/s2/s2point.h22u::e27 ,:
note:  In file included from expanded from macro 'absl_nonnull's../src/s2/s2coder.h
t:d  23:241:
: | In file included from s#/usr/local/clang/include/absl/status/status.htd:re67if:
niIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.hn*:e 29 a:
abIn file included from bs/usr/local/clang/include/absl/strings/cord.hsl:l_94_n:
noIn file included from on/usr/local/clang/include/absl/strings/internal/cordz_info.hnn:nu31ul:
ll/usr/local/clang/include/absl/synchronization/mutex.hl : e956_r:Nr52oo:nr n)warning: ;utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
l
      l| 
                                                       ^        
| 956                     ^ | 
  static /usr/local/clang/include/absl/base/nullability.hb:o241o:l22 :C anote: sexpanded from macro 'absl_nonnull't
An  d241C | a#ldleFfuinncet iaobns(lc_onnosntn uCloln d_iNtoinonnu*l la
b      s| l                     ^_
nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2region.cca:b18s:
lIn file included from _../src/s2/s2region.hn:o24n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl:
36      :
| In file included from                      ^../src/s2/base/casts.h
:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 | In file included from  s2/s2region_union.cc :L18o:
gIn file included from M../src/s2/s2region_union.he:s28s:
aIn file included from g../src/s2/s2point.he:&27 :
oIn file included from p../src/s2/s2coder.he:r23a:
tIn file included from o/usr/local/clang/include/absl/status/status.hr:<67<:
(In file included from v/usr/local/clang/include/absl/status/internal/status_internal.ho:i29d:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.ha:b958l:e50 :  vwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
In file included from {s2/s2region_term_indexer.cc
  :      95875|  | :
                               ^ In file included from 
 ../src/s2/s2region_term_indexer.hs:/usr/local/clang/include/absl/base/nullability.ht106:a:
257tIn file included from :i../src/s2/s2cell_union.h23c:: 29 b:
note: oIn file included from expanded from macro 'absl_nullable'o/usr/local/clang/include/absl/flags/flag.h
l:   40C257:
a | /usr/local/clang/include/absl/flags/commandlineflag.hs#:td193Ae:nf27di:Cn aewarning: l type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]la
Mbest  lh193_o | nd u( lcvloianrbstltue a Cl_o Nnvudoliiltdai boRlnee*a
 d      a(| bv                      ^so
li_dn*o nanbuslll_ nco)n;n
u      l| l                                                 ^ 
In file included from d/usr/local/clang/include/absl/base/nullability.hs2/s2region.ccs::t24118)::
 22In file included from c:../src/s2/s2region.ho :n24note: s:
expanded from macro 'absl_nonnull'tIn file included from 
 ../src/s2/s1angle.h=  : 241280 | :
;#In file included from 
d../src/s2/s2point.h      e:| f25                          ^i:

nIn file included from e../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h ::a36241b:
:sIn file included from 22l../src/s2/base/casts.h:_: n34note: o:
expanded from macro 'absl_nonnull'nIn file included from 
n/usr/local/clang/include/absl/log/log.hu:  l209241l:
 |  In file included from #_/usr/local/clang/include/absl/log/internal/log_impl.hdN:eo22fn:
in/usr/local/clang/include/absl/log/internal/log_message.hnu:el161 l:a
38b      :s|  l                     ^warning: _
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u161l | l   _LNoognMneuslsla
In file included from gs2/s2region_union.cc      e:| &18                     ^ :

oIn file included from p../src/s2/s2region_union.he:r28a:
tIn file included from o../src/s2/s2point.hr:<27<:
(In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/status/status.hv:o67i:
dIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31l:
e/usr/local/clang/include/absl/synchronization/mutex.h : 961v:)34 :{ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                     ^

/usr/local/clang/include/absl/base/nullability.h  :961257 | : 23 :s tnote: aexpanded from macro 'absl_nullable't
ic   257b | o#odle fCianlel BaybRself_(ncuolnlsatb lTe*  _aNbuslll_anbolnen
u      l| l                      ^ 
self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from In file included from s2/s2region.cc../src/s2/s2region_union.h::1828:
:
In file included from In file included from ../src/s2/s2region.h../src/s2/s2point.h::2427:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2coder.h::2823:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/status/status.h::2567:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::3629:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.h::3494:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::20931:
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/synchronization/mutex.h::22975:
:31/usr/local/clang/include/absl/log/internal/log_message.h:: 179:warning: 35:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  975 |    179  | i n lLiongeM evsosiadg eR&e aodpCearlaltboarc<k<((Tw*c haabrs_lt_*n oanbnsull_ln uclallalbblaec kv)) ;c
o      n| s                                  ^t
 {/usr/local/clang/include/absl/base/nullability.h
:      257| :                              ^23
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'241
:22:   257 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2region.cc979::1843:
:In file included from  ../src/s2/s2region.h:warning: 24type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
  In file included from 979../src/s2/s2point.h | : 25 :
sIn file included from t../src/s2/util/coding/coder.ha:t36i:
cIn file included from  ../src/s2/base/casts.hb:o34o:
lIn file included from  /usr/local/clang/include/absl/log/log.hA:l209w:
aIn file included from y/usr/local/clang/include/absl/log/internal/log_impl.hs:T22r:
u/usr/local/clang/include/absl/log/internal/log_message.he:(190c:o42n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ond  i190t | i o nL*o gaMbessls_anguel&l aobpleer)a t{o rr<e<t(usrtnd :t:rouset;r e}a
m      &|                                            ^(
*a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257m | )#(dsefine absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:106:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:106:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2region_term_indexer.ccIn file included from :/usr/local/clang/include/absl/strings/cord.h75::
94In file included from :
../src/s2/s2region_term_indexer.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h106::
31In file included from :
../src/s2/s2cell_union.h:/usr/local/clang/include/absl/synchronization/mutex.h29::
489In file included from :/usr/local/clang/include/absl/flags/flag.h14::42 :
In file included from warning: /usr/local/clang/include/absl/flags/internal/flag.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
30:
/usr/local/clang/include/absl/base/call_once.h:96  :48933 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  vo   i96d |   ( *farbiseln_dn usltlda:b:laet oimnivca<ruiianntt3)2(_vto>i*d *a basbls_ln_onnunlullalb iblaistey__iunntkenronwanl):,:
C      o| n             ^t
rol/usr/local/clang/include/absl/base/nullability.hW:o257r:d23(:
       | note:                                 ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea balbes l__Nnuolnlnaubllle 
_      N| o                      ^n
null
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.hIn file included from :s2/s2region_term_indexer.cc28::
75In file included from :
../src/s2/s1chord_angle.hIn file included from :../src/s2/s2region_term_indexer.h29::
106:
In file included from ../src/s2/s2cell_union.h:In file included from 29../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/flags/internal/flag.h:
:In file included from 30../src/s2/s2coder.h:
:/usr/local/clang/include/absl/base/call_once.h23::
97In file included from :/usr/local/clang/include/absl/status/status.h18::67 :
In file included from warning: /usr/local/clang/include/absl/status/internal/status_internal.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
29:
In file included from    /usr/local/clang/include/absl/strings/cord.h97: | 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
o/usr/local/clang/include/absl/synchronization/mutex.hn:c489e:_45f:l awarning: gtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]*
 ab  s489l | _ n o n n u lvlo ifdl a(g*)a;b
s      l| _                 ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  inote: nexpanded from macro 'absl_nonnull'v
ar  i241a | n#td)e(fvionied *a basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* abIn file included from ss2/s2region_term_indexer.ccl:_75n:
uIn file included from l../src/s2/s2region_term_indexer.hl:a106b:
iIn file included from l../src/s2/s2cell_union.hi:t29y:
_In file included from u/usr/local/clang/include/absl/flags/flag.hn:k42n:
oIn file included from w/usr/local/clang/include/absl/flags/internal/flag.hn: 30a:
r/usr/local/clang/include/absl/base/call_once.hg:)111;:
40      :|              ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:289:34:   111note:  | expanded from macro 'absl_nullability_unknown'v
oi  d289  | L#odweLfeivneel CaablsllO_nncuel(laabbsill:i:toyn_cuen_kfnloawgn*  _aNbuslll__nuonnsnpuelcli ffileadg
,       | C                                 ^a
llable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2region_coverer.cc241::1822:
:In file included from  ../src/s2/s2region_coverer.h:note: 31expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2cell.h:  28241:
 | In file included from #../src/s2/s1chord_angle.hd:e29f:
iIn file included from n../src/s2/s1angle.he: 28a:
bIn file included from s../src/s2/s2point.hl:_27n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                     ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      t|                      ^
d::ostream& osIn file included from )s2/s2region_coverer.cc):;18
:
      In file included from | ../src/s2/s2region_coverer.h:                                         ^31
:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22../src/s2/s1angle.h:: 28:
note: In file included from ../src/s2/s2point.hexpanded from macro 'absl_nonnull':
27:
In file included from ../src/s2/s2coder.h:  23241:
In file included from  | In file included from s2/s2region_term_indexer.cc#/usr/local/clang/include/absl/status/status.h:d:75e67:
f:
In file included from iIn file included from ../src/s2/s2region_term_indexer.hn/usr/local/clang/include/absl/status/internal/status_internal.h:e:106 29:
a:
In file included from bIn file included from ../src/s2/s2cell_union.hs/usr/local/clang/include/absl/strings/cord.h:l:29_94:
n:
In file included from oIn file included from /usr/local/clang/include/absl/flags/flag.hn/usr/local/clang/include/absl/strings/internal/cordz_info.h:n:42u31:
l:
In file included from l/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/flags/internal/flag.h ::_55030N::
o64/usr/local/clang/include/absl/base/call_once.hn::n 153u:warning: l41type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l:

       | warning:                      ^  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
550
 |       153  |          C a l l O n c e I m p l ( s t d : : a t o m ibca<suei_nitn3t2e_rtn>a*l :a:bPselr_TIn file included from nhs2/s2region.ccor:ne18an:
duIn file included from Sl../src/s2/s2region.hyl:n 24cc:
hoIn file included from *n../src/s2/s1angle.h t:ar28bo:
slIn file included from l,../src/s2/s2point.h_
:n      25o| :
n                                        ^In file included from n
../src/s2/util/coding/coder.hu:l36/usr/local/clang/include/absl/base/nullability.hl:
: In file included from 241w../src/s2/base/casts.h)::;2234
::
       In file included from | note: /usr/local/clang/include/absl/log/log.h                                                               ^expanded from macro 'absl_nonnull':

209:
/usr/local/clang/include/absl/base/nullability.hIn file included from   :/usr/local/clang/include/absl/log/internal/log_impl.h241241: | :22#22:
d:/usr/local/clang/include/absl/log/internal/log_message.he :f191note: i:expanded from macro 'absl_nonnull'n43
e:    a241warning: b | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s#
ld_enfo  in191nn | eu  l alLb os_glNM_oennsonsnuanlgulel
&l        | o_                     ^pN
eornantuolrl<
<      (| s                     ^t
d::ios_base& (*absl_nIn file included from os2/s2region_coverer.ccn:n18u:
lIn file included from l../src/s2/s2region_coverer.h :m31):
(In file included from s../src/s2/s2cell.ht:d28::
:In file included from i../src/s2/s1chord_angle.ho:s29_:
bIn file included from a../src/s2/s1angle.hs:e28&:
 In file included from o../src/s2/s2point.hs:)27):
;In file included from 
../src/s2/s2coder.h      :| 23                                          ^:

In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f551i:n40e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o551n | n u lslt a_tNiocn nbuololl
       D| e                     ^c
rementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2region_coverer.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2region_coverer.h/usr/local/clang/include/absl/status/internal/status_internal.h::3129:
:
In file included from In file included from ../src/s2/s2cell.h/usr/local/clang/include/absl/strings/cord.h::2894:
:
In file included from In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2931:
:
In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/synchronization/mutex.h28::
1033In file included from :../src/s2/s2point.h20::27 :
In file included from warning: ../src/s2/s2coder.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h: 291033:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h :v94o:
iIn file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.h :W31a:
i/usr/local/clang/include/absl/synchronization/mutex.ht:(556M:u38t:e xwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l556_ | n o nvnouildIn file included from l s2/s2region.cc L:mo18uc:
)kIn file included from  S../src/s2/s2region.hl{oIn file included from :
ws2/s2region_term_indexer.cc24      L:o:
o| p75(In file included from                    ^:
S../src/s2/s1angle.h
In file included from y:../src/s2/s2region_term_indexer.hn28c:/usr/local/clang/include/absl/base/nullability.h:
h106:In file included from W:
241../src/s2/s2point.haIn file included from ::i../src/s2/s2cell_union.h2225t:::
P29 In file included from a:
../src/s2/util/coding/coder.hnote: rIn file included from a:mexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/flags/flag.h36s
::
*42In file included from    :
../src/s2/base/casts.h241aIn file included from : | b/usr/local/clang/include/absl/flags/internal/flag.h34#s::
dl30In file included from e_:
/usr/local/clang/include/absl/log/log.hfn:/usr/local/clang/include/absl/base/call_once.hio209:nn:
194enIn file included from : u/usr/local/clang/include/absl/log/internal/log_impl.h31al::bl22 s warning: :
lwtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a/usr/local/clang/include/absl/log/internal/log_message.h_
i:nt306op  ,:n194 3n | i:uin tlnwarning:  lltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f i
l_naNeg  so 306)ns | ;n
t u      d :l| a:bl                                     ^as

tlo      m_/usr/local/clang/include/absl/base/nullability.h| in:                     ^co241
<n:un22iu:nl tlnote: 3 expanded from macro 'absl_nonnull'2s
_ttd  >:241*: |  ua#nbdiseqfluIn file included from i_nees2/s2region_union.ccn_ p:toanb18rnsul:
_<nloIn file included from Lln../src/s2/s2region_union.ho gCnou:lMnet28ls r:
s_oNIn file included from oalg../src/s2/s2point.hnWe:Dnou27arld:
(tlaIn file included from 

>../src/s2/s2coder.h             :| | d                     ^23                              ^a
:

tIn file included from a/usr/local/clang/include/absl/status/status.h_/usr/local/clang/include/absl/base/nullability.h;::
67241      :
:| In file included from 22  ^/usr/local/clang/include/absl/status/internal/status_internal.h:
: 29:
note: /usr/local/clang/include/absl/base/nullability.hIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/strings/cord.h
241::94  22:
241:In file included from  | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h#s2/s2region_coverer.cc:note: d:e31fexpanded from macro 'absl_nonnull'i18:

n:
/usr/local/clang/include/absl/synchronization/mutex.heIn file included from   : ../src/s2/s2region_coverer.h2411050a: | :b31#31s:
d:lIn file included from e _../src/s2/s2cell.hfwarning: n:itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o28n
n:
en In file included from  ua../src/s2/s1chord_angle.h1050lb:s | l29 l _:
_ NnIn file included from boo../src/s2/s1angle.honn:non28ullull :
_ lIn file included from 
NWo../src/s2/s2point.h      an:n| i                     ^27ut
:
lWIn file included from li../src/s2/s2coder.h
t:      h23| T:
In file included from                      ^iIn file included from s2/s2region_term_indexer.cc
m/usr/local/clang/include/absl/status/status.h:e:75o67:
u:
In file included from tIn file included from ../src/s2/s2region_term_indexer.h(/usr/local/clang/include/absl/status/internal/status_internal.h:M:106u29:
t:
In file included from eIn file included from ../src/s2/s2cell_union.hx/usr/local/clang/include/absl/strings/cord.h:*:29 94:
a:
In file included from bIn file included from /usr/local/clang/include/absl/flags/flag.hs/usr/local/clang/include/absl/strings/internal/cordz_info.h:l:42_31:
n:
In file included from o/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/flags/internal/flag.hn::n55830u::
l35/usr/local/clang/include/absl/base/call_once.hl::  195m:warning: u16type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],:
  awarning: b  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s558
l | :   : 195Db | uo ro al t  iLooonncc ket_SiflmoleawogWui*tt )ha Db{es
la      _d| nl                              ^oi
nnne/usr/local/clang/include/absl/base/nullability.hu(:lM241lu :fH22lo:wa  ganote: b)expanded from macro 'absl_nonnull' s
l{_
n        o241n| n |                ^u#
ldl/usr/local/clang/include/absl/base/nullability.he :fh241io:nw22e,: 
 a      note: b| expanded from macro 'absl_nonnull's                                  ^
l
_  n241/usr/local/clang/include/absl/base/nullability.ho | :n#241nd:ue22lf:li  nnote: _eexpanded from macro 'absl_nonnull'N 
oan  bns241ul | l_#lnd
eo      fni| nn                     ^ue
 lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from In file included from s2/s2region_coverer.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2region_coverer.h../src/s2/s2coder.h::3123:
:
In file included from In file included from ../src/s2/s2cell.h/usr/local/clang/include/absl/status/status.h::2867:
:
In file included from In file included from ../src/s2/s1chord_angle.h/usr/local/clang/include/absl/status/internal/status_internal.h::2929:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/strings/cord.h::2894:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2731:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/synchronization/mutex.h::231069:
:In file included from 32/usr/local/clang/include/absl/status/status.h:: 67:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h :106994 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hb:o31In file included from o:
s2/s2region_term_indexer.ccl/usr/local/clang/include/absl/synchronization/mutex.h: :75W559:
a:In file included from i46../src/s2/s2region_term_indexer.ht::W 106i:
warning: tIn file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]h../src/s2/s2cell_union.h
D:e29a  :
d559In file included from l | /usr/local/clang/include/absl/flags/flag.hi :n 42e :
( In file included from M /usr/local/clang/include/absl/flags/internal/flag.hu :t 30e :
x /usr/local/clang/include/absl/base/call_once.h* :  200a : b 40s :l  _ warning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o 
n n u   l 200l  |   vm ou i,d  c aoLbnoswslLt: e:CvToeinlmdCeia tldileoOannd*lc iean(besa)lb _s{nl
u:l      l:a| bo                               ^nl
cee /usr/local/clang/include/absl/base/nullability.h_c:ofn241dl,:
a22      g:| *                                              ^ 
note: aexpanded from macro 'absl_nonnull'b/usr/local/clang/include/absl/base/nullability.hs
:l257_  n:o241n23 | n:#u dlnote: elexpanded from macro 'absl_nullable'f 
ifn  le257a  | ga#,bd sCelfa_ilnnloean nbaubllsell& _&_n Nufolnnl,na
ub      ll| el                                       ^ 
_
N      u| /usr/local/clang/include/absl/base/nullability.hl                     ^l:
a241b:l22e:
       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull In file included from _s2/s2region_coverer.ccN:In file included from o18s2/s2region_union.ccn:
:nIn file included from 18u../src/s2/s2region_coverer.h:
l:In file included from l31../src/s2/s2region_union.h
:
:      In file included from 28| ../src/s2/s2cell.h:
                     ^:In file included from 
28../src/s2/s2point.h:
:In file included from 27../src/s2/s1chord_angle.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1088/usr/local/clang/include/absl/strings/cord.h::3594::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/synchronization/mutex.h:562:23 :1088  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
voi  d562  | E n avboliedD eLboucgkLSolgo(wc(oMnusHto wc haabrs*l _anbosnln_unlull lhaobwl,e  cnoanmset) ;C
o      n| d                                  ^i
ti/usr/local/clang/include/absl/base/nullability.ho:n257*: 23a:b snote: lexpanded from macro 'absl_nullable'_
nu  l257l | a#bdleef icnoen da,b
s      l| _                      ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  _note: Nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed
e      f| i                      ^n
e absl_nonnull _NonnIn file included from us2/s2region_union.ccl:l18
:
      In file included from | ../src/s2/s2region_union.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2region_coverer.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2region_coverer.h:
:In file included from 31/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2cell.h:
:In file included from 28/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s1chord_angle.h:
:29/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1091../src/s2/s1angle.h::2628::
 In file included from ../src/s2/s2point.hwarning: :27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23 :
1091In file included from  | /usr/local/clang/include/absl/status/status.h : 67b:
oIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hl: 29W:
aIn file included from i/usr/local/clang/include/absl/strings/cord.ht:C94o:
mIn file included from m/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31(:
M/usr/local/clang/include/absl/synchronization/mutex.hu:t562e:x58*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n  o562n | n u lvlo imdu tLeoxc,k
S      l| o                         ^w
(M/usr/local/clang/include/absl/base/nullability.hu:H241o:w22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ihnoew ,a bcsoln_snto nCnounldli t_iNoonn*n ualbls
l      _| n                     ^u
llable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2region_union.cc#:d18e:
fIn file included from i../src/s2/s2region_union.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2shape_index_buffered_region.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2shape_index_buffered_region.h31::
23:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s1angle.h1132::2810:
:In file included from  ../src/s2/s2point.h:warning: 25type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/coding/coder.h: 361132:
 | In file included from  ../src/s2/base/casts.h :M36u:
tIn file included from e../src/s2/base/logging.hx:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
bl/usr/local/clang/include/absl/log/internal/check_op.he: 504c:o1n:s twarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]m
u_;
        504|  |          ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_257L:O23G:_ Inote: Nexpanded from macro 'absl_nullable'T
ER  N257A | L#_dCeHfEiCnKe_ OaPb_sIlM_PnLu(lClhaebclke_ L_EN,u l<l=a)b
l      e| 
^      
|                       ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504In file included from :s2/s2region_union.cc1::18 :
In file included from warning: ../src/s2/s2region_union.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h::27489:
:In file included from 47../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :48929 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31s:
t/usr/local/clang/include/absl/synchronization/mutex.h :T11461:&7 :v 1warning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
cons et1146  | T  2_ &N  u vl 2 l,at bhclioesn
)s      )t|                         ^Ac
BhSaLr_*E XaCbLsUlS_InVE_LOCK_FUNCTION(omnun)u
l      l|        ^~~~e
xIn file included from ps2/s2region_coverer.ccr:t18e:
xIn file included from t../src/s2/s2region_coverer.h): 31{:
 In file included from  ../src/s2/s2cell.h: 28 :
 In file included from \../src/s2/s1chord_angle.h
:      29| :
                                              ^In file included from 
../src/s2/s1angle.h:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
/usr/local/clang/include/absl/synchronization/mutex.h:In file included from : ../src/s2/s2coder.h1153:note: :23expanded from macro 'absl_nonnull'39:

:In file included from  /usr/local/clang/include/absl/status/status.h  :warning: 24167type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | :

#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he: f291153i:
 | nIn file included from  e/usr/local/clang/include/absl/strings/cord.h  :ea94xb:
psIn file included from ll/usr/local/clang/include/absl/strings/internal/cordz_info.hi_:cn31io:
tn/usr/local/clang/include/absl/synchronization/mutex.h n:Ru565el:ll36e :a_ sNwarning: aotype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]bn
lneuMlu  lt565
e |       x |  L                     ^voo
icdk (UMnultoecxk*S laobws(lS_ynnocnhnWualilt Pmaur)a
m      s| *                                      ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   w241a | i#tdpe)f iAnBeS La_bAsTlT_RnIoBnUnTuEl_lC O_LNDo;n
n      u| l                                   ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullablIn file included from es2/s2shape_index_buffered_region.cc :_18N:
uIn file included from lIn file included from ../src/s2/s2shape_index_buffered_region.hls2/s2region_union.cc:a:23b18:
l:
eIn file included from In file included from 
../src/s2/s1angle.h../src/s2/s2region_union.h      ::| 2828                      ^:
:

In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2527:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/status/status.h::3667:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::3794:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::5041158::153::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/log/internal/check_op.h:497: 321158: |   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
   M  u497t | e x &i nmluIn file included from i s2/s2region_coverer.ccnA:eB18 S:
cLIn file included from o_../src/s2/s2region_coverer.hnI:sN31tT:
eEIn file included from xR../src/s2/s2cell.hpN:rA28 L:
c_In file included from oA../src/s2/s1chord_angle.hnT:sT29tR:
 IIn file included from cB../src/s2/s1angle.hhU:aT28rE:
*_In file included from  C../src/s2/s2point.haA:bP27sT:
lUIn file included from _R../src/s2/s2coder.hnE:uD23l_:
lBIn file included from aY/usr/local/clang/include/absl/status/status.hb(:lt67eh:
 iIn file included from ns/usr/local/clang/include/absl/status/internal/status_internal.ha):m,29e
:
#      In file included from #| /usr/local/clang/include/absl/strings/cord.hI                                                    ^~~~:m
94p:
lIn file included from (/usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 576 : 49 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      576  |   \ 
v      o| i                               ^d/usr/local/clang/include/absl/synchronization/mutex.h
 :T1166r/usr/local/clang/include/absl/base/nullability.hy::R39257e::m 23o:vwarning:  etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: (
expanded from macro 'absl_nullable'b
as   e257_1166 | i | #n d teeefrxinpnlaeli :ca:ibPtse lrR_TenhlurelealasadabSblylene cM_huN*tu elaxlbLasoblcl_ken(
oMn      nuu| tl                      ^el
 xs*) ;a
b      s| l                                                ^_
noIn file included from /usr/local/clang/include/absl/base/nullability.hns2/s2shape_index_buffered_region.cc:n:241u18:l:
22lIn file included from : ../src/s2/s2shape_index_buffered_region.h m:note: u23expanded from macro 'absl_nonnull',:

 In file included from c../src/s2/s1angle.h  o:241n28 | s#:
tdIn file included from e ../src/s2/s2point.hfC:io25nn:
deIn file included from i ../src/s2/util/coding/coder.hta:bis36lo_:
nnIn file included from o&../src/s2/base/casts.h n:cn36uo:
lnlIn file included from d ../src/s2/base/logging.h_):N
o21n      :
n| In file included from u                                      ^l/usr/local/clang/include/absl/log/check.hl
:
37      :
/usr/local/clang/include/absl/base/nullability.h| In file included from                      ^:/usr/local/clang/include/absl/log/internal/check_impl.h
241::2122:
: /usr/local/clang/include/absl/log/internal/check_op.h:note: 504expanded from macro 'absl_nonnull':
1:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
de/usr/local/clang/include/absl/log/internal/check_op.hf:i498n:e35 In file included from :as2/s2region_coverer.cc b:note: s18expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l:

_In file included from n../src/s2/s2region_coverer.ho:  n31498n:
 | uIn file included from  l../src/s2/s2cell.h l:  28 _:
 NIn file included from  o../src/s2/s1chord_angle.hin:nn29tu:
 lIn file included from vl../src/s2/s1angle.h1
:,      28 | :
i                     ^In file included from n
../src/s2/s2point.ht: 27v:
2In file included from ,../src/s2/s2coder.h :c23o:
nIn file included from s/usr/local/clang/include/absl/status/status.ht: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 578e:x45p:r twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
t)In file included from    s2/s2region_union.cc{578:  | 18  :
  vIn file included from  o../src/s2/s2region_union.h i: d28  :
 BIn file included from  l../src/s2/s2point.h o: c27 k:
 (In file included from  b../src/s2/s2coder.ha s: e23 _:
\iIn file included from 
n/usr/local/clang/include/absl/status/status.ht      e:r| n67                                  ^a:

lIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::P:e29r241:
T:In file included from h22r/usr/local/clang/include/absl/strings/cord.he::a 94d:
Snote: In file included from yexpanded from macro 'absl_nonnull'n/usr/local/clang/include/absl/strings/internal/cordz_info.h
c:h  31*241:
  | /usr/local/clang/include/absl/synchronization/mutex.ha#b:ds1179el:f_10in:no enwarning:  ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]au
blsl l 1179_s | n) o; n
Mn      uu| tle                                            ^lx
 *_/usr/local/clang/include/absl/base/nullability.h N:ao241bn:sn22lu:_l nlnote: u
expanded from macro 'absl_nonnull'l      
l| a                       ^b241
l | e# dmeuf_i;n
e       | a         ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257o:n23n:u lnote: lexpanded from macro 'absl_nullable' 
_N  o257n | n#udlelf
i      n| e                     ^ 
absl_nullable _NullIn file included from as2/s2region_coverer.ccb:l18e:

In file included from       ../src/s2/s2region_coverer.h| :                      ^31
:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2region_union.ccn:n18u:
lIn file included from l../src/s2/s2region_union.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52In file included from :s2/s2region_coverer.cc :18warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2region_coverer.h
:31:
In file included from ../src/s2/s2cell.h: 281212:
 | In file included from b../src/s2/s1chord_angle.ho:o29l:
 In file included from C../src/s2/s1angle.ho:n28d:
iIn file included from t../src/s2/s2point.hi:o27n:
:In file included from :../src/s2/s2coder.hC:a23s:
tIn file included from A/usr/local/clang/include/absl/status/status.hn:d67C:
aIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:M29e:
tIn file included from h/usr/local/clang/include/absl/strings/cord.ho:d94(:
cIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:s31t:
 /usr/local/clang/include/absl/synchronization/mutex.hC:o586n:d43i:t iwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
* a  b586s | l _ nvoonindu ll c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHEIn file included from Cs2/s2region_union.ccK:_18O:
PIn file included from _../src/s2/s2region_union.hI:M28P:
LIn file included from (../src/s2/s2point.hC:h27e:
cIn file included from k../src/s2/s2coder.h_:L23T:
,In file included from  /usr/local/clang/include/absl/status/status.h<:)67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h:94::
488In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h32::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
1241:12:   warning: 488type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  i n1241l | i n e   cboonoslt e(x*parb sclo_nnsotn ncuhlalr *f uanbcs)l(_Tn*u lalbasbll_en unlalmaeb#i#lIimtpyl_(u n k n o w n ) , 
        |             ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22\:
       | note:                                ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 257#:d23e:f inote: nexpanded from macro 'absl_nullable'e
 a  b257s | l#_dneofninnuel la b_sNlo_nnnuulllla
b      l| e                     ^ 
_NullIn file included from as2/s2region_union.ccb:l18e:

In file included from       ../src/s2/s2region_union.h| :                      ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2shape_index_buffered_region.ccIn file included from :/usr/local/clang/include/absl/strings/cord.h18::
94In file included from :
../src/s2/s2shape_index_buffered_region.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h23::
31In file included from :
../src/s2/s1angle.h/usr/local/clang/include/absl/synchronization/mutex.h::281241:
:In file included from 34../src/s2/s2point.h:: 25:
warning: In file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]../src/s2/util/coding/coder.h
:36:
In file included from  ../src/s2/base/casts.h1241: | 36 :
 In file included from  ../src/s2/base/logging.h :b21o:
oIn file included from l/usr/local/clang/include/absl/log/check.h :(37*:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n505n:u1l:l  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
nc/usr/local/clang/include/absl/log/internal/check_op.h):(489T:*47 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
_nul  l489 |   a b i l ictoyn_sutn kTn1o&w nv)1,,
       c| o                                 ^n
st/usr/local/clang/include/absl/base/nullability.h :T2892:&34 :v 2note: ,expanded from macro 'absl_nullability_unknown' 
co  n289s | t# dcehfairn*e  aabbssll__nnounlnlualbli leixtpyr_tuenxktn)o w{n   _ N u l\l
_      u| n                                              ^s
pe/usr/local/clang/include/absl/base/nullability.hc:i241f:i22e:d 
      note: | expanded from macro 'absl_nonnull'                                 ^

  241 | #define absl_nonnull In file included from _s2/s2region_union.ccN:o18n:
nIn file included from u../src/s2/s2region_union.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define abslIn file included from _s2/s2shape_index_buffered_region.ccn:u18l:
lIn file included from a../src/s2/s2shape_index_buffered_region.hb:i23l:
iIn file included from t../src/s2/s1angle.hy:_28u:
nIn file included from k../src/s2/s2point.hn:o25w:
nIn file included from  ../src/s2/util/coding/coder.h_:N36u:
lIn file included from l../src/s2/base/casts.h_:u36n:
sIn file included from p../src/s2/base/logging.he:c21i:
fIn file included from i/usr/local/clang/include/absl/log/check.he:d37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                                 ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexIn file included from ps2/s2region_union.ccr: 18c:
oIn file included from n../src/s2/s2region_union.hs:t28 :
cIn file included from h../src/s2/s2point.ha:r27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
nIn file included from a/usr/local/clang/include/absl/strings/cord.hm:e94#:
#In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hm:p31l:
F(/usr/local/clang/include/absl/synchronization/mutex.h :e 1249r :( 8b :a  s warning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_ 
i n  t 1249e  | r  n a  l  :  :T P*\e 
ra      Tb| hs                               ^rl
e_an/usr/local/clang/include/absl/base/nullability.hdo:Sn257yn:nu23cl:hl * note:  oexpanded from macro 'absl_nullable'ab
bjse  lc257_t | n,#o
dn      en| fu       ^il
nle
/usr/local/clang/include/absl/base/nullability.h       :a| 241b                                          ^:s
22l:_ n/usr/local/clang/include/absl/base/nullability.hnote: u:expanded from macro 'absl_nonnull'l241
l:a22  b:241l  | enote: # expanded from macro 'absl_nonnull'd_
eNfui  ln241le | a #badlbeesf
li      _n| ne                      ^o 
nanbuslll_ n_oNnIn file included from ons2/s2shape_index_buffered_region.ccun:ln18lu:
 lIn file included from _l../src/s2/s2shape_index_buffered_region.hN
:o      23n| :
n                     ^In file included from u
../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from 37s2/s2region_union.cc:
:In file included from 18/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2region_union.h:
:28/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 505../src/s2/s2point.h::127::
 In file included from ../src/s2/s2coder.hwarning: In file included from :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2region_coverer.cc23
::
18/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :
:/usr/local/clang/include/absl/status/status.hIn file included from 498:../src/s2/s2region_coverer.h:67:35:
31:In file included from :
 /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :note: ../src/s2/s2cell.h29expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'::

28In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from   :../src/s2/s1chord_angle.h49894: | :
29 In file included from :
 /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from  :../src/s2/s1angle.h 31: :
28 :
/usr/local/clang/include/absl/synchronization/mutex.hiIn file included from :n../src/s2/s2point.h1250t:: 2743:
vIn file included from 1../src/s2/s2coder.h,: 23i:
nIn file included from t/usr/local/clang/include/absl/status/status.h ::v67 2:
warning: ,In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] /usr/local/clang/include/absl/status/internal/status_internal.h
c:o29n:
 sIn file included from 1250t/usr/local/clang/include/absl/strings/cord.h |  : c94 h:
 aIn file included from  r/usr/local/clang/include/absl/strings/internal/cordz_info.hb*:o 31oa:
lb/usr/local/clang/include/absl/synchronization/mutex.h s:(l590a_:bn40so:ln :nwarning: :utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]tl
ylp ee  _x590ip | dr et neetxxitpt)ly i<{cT i> t:  : Mt uy tp ee x: (: c* o  na sb ts  l v_ on\lo
an      tn| iu                                  ^ll
el  /usr/local/clang/include/absl/base/nullability.hMmu:te241etx:h*22o :da )bnote: s(expanded from macro 'absl_nonnull'l)_
)n
u        l241| l |                                           ^a#
bdlee/usr/local/clang/include/absl/base/nullability.hf :i/241n*:ei22 g:an bonote: srexpanded from macro 'absl_nonnull'le
_dn  *o/241n) | n #u{dl}el
f       i_| nN                                       ^eo
 nan/usr/local/clang/include/absl/base/nullability.hbu:sl257ll:_
23n      :o|  n                     ^note: n
uexpanded from macro 'absl_nullable'l
l   _257N | o#ndneufliln
e       | a                     ^b
sl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2region_coverer.cc241: | 18#:
dIn file included from e../src/s2/s2region_coverer.hf:i31n:
eIn file included from  ../src/s2/s2cell.ha:b28s:
lIn file included from _../src/s2/s1chord_angle.hn:o29n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2region_union.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2region_union.h:
:In file included from 28/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2point.h:
:27/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 624../src/s2/s2coder.h::6823::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :67'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h  :62494 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.he:x31p:
l/usr/local/clang/include/absl/synchronization/mutex.hi:c1293i:t62 :M uwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
xLo c1293k | (vMouitde xR&e gmius tAeBrSMLu_tIeNxTTErRaNcAeLr_(AvToTiRdI B(U*TaEb_sClA_PnToUnRnEuDl_lB Yf(nt)h(icso)n)s
t       | c                                                                   ^~~~h
ar* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abs/usr/local/clang/include/absl/synchronization/mutex.hl:_635n:o29n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _No  n635n | u l le
x      p| l                     ^i
cit MuteIn file included from xs2/s2region_union.ccL:o18c:
kIn file included from (../src/s2/s2region_union.hM:u28t:
eIn file included from x../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hm:u29):
 In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hX:C31L:
U/usr/local/clang/include/absl/synchronization/mutex.hS:I1294V:E62_:L Owarning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]K
_FU N1294C | T I O N ( m u ) 
        |                              ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l  c_oNnosntn uvllo
i      d| *                     ^ 
absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2region_coverer.cc_:N18o:
nIn file included from n../src/s2/s2region_coverer.hu:l31l:

In file included from       ../src/s2/s2cell.h| :                     ^28
:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2region_union.cc:/usr/local/clang/include/absl/synchronization/mutex.h18::
641In file included from :../src/s2/s2region_union.h68::28 :
In file included from warning: ../src/s2/s2point.h:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]27
:
In file included from ../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h641: | 67 :
 In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:p29l:
iIn file included from c/usr/local/clang/include/absl/strings/cord.hi:t94 :
MIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.ht:e31x:
L/usr/local/clang/include/absl/synchronization/mutex.ho:c1309k:(35M:u twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
& m u1309  | AvBoSiLd_ IRNeTgEiRsNtAeLr_CAoTnTdRVIaBrUTTrEa_cCeArP(TvUoRiEdD _(B*Ya(btshli_sn)o,n
n      u| l                                                                   ^~~~l
 fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull /usr/local/clang/include/absl/synchronization/mutex.h_:N649o:n29n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  649 | In file included from  s2/s2region_union.cc :e18x:
pIn file included from l../src/s2/s2region_union.hi:c28i:
tIn file included from  ../src/s2/s2point.hM:u27t:
eIn file included from x../src/s2/s2coder.hL:o23c:
kIn file included from (/usr/local/clang/include/absl/status/status.hM:u67t:
eIn file included from x/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h :m1310u:,17 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t C o1310n | d i t i ocno&n scto ncdh)a
r      *|                              ^a
bsl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
msg,   241c | o#ndsetf ivnoei da*b salb_snlo_nnnounlnlu l_lN ocnvn)u)l;l

            | |                 ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/util/coding/coder.h::68936::
35In file included from :../src/s2/base/casts.h :34warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/log.h
:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h  :68922 | :
 /usr/local/clang/include/absl/log/internal/log_message.h :e319x:p20l:i cwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
 Re  a319d | e r M u tceoxnLsotc kw(cMhuatre_xt**  aabbssll__nnounlnlualbll em uc,o ncsotn&s tv )C;o
n      d| i                   ^t
ion/usr/local/clang/include/absl/base/nullability.h&: 257c:o23n:d )note: 
expanded from macro 'absl_nullable'      
|                                   ^  
257 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.hIn file included from :209:
s2/s2shape_index_buffered_region.ccIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h18::
22In file included from :
../src/s2/s2shape_index_buffered_region.h:/usr/local/clang/include/absl/log/internal/log_message.h23::
321In file included from :../src/s2/s1angle.h52::28 :
In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/util/coding/coder.h:  36321:
 | In file included from i../src/s2/base/casts.hn:l36i:
nIn file included from e../src/s2/base/logging.h :L21o:
gIn file included from M/usr/local/clang/include/absl/log/check.he:s37s:
aIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.he:&21 :
Lo/usr/local/clang/include/absl/log/internal/check_op.hg:M506e:s1s:a gwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:ope  r506a | tAoBrS<L<_(LwOcGh_aIrN_TtE*R NaAbLs_lC_HnEuClKl_aObPl_eI MvP)L ({C
h      e| c                                                   ^k
_GE/usr/local/clang/include/absl/base/nullability.h,: 257>:=23):
       | note: ^expanded from macro 'absl_nullable'

  /usr/local/clang/include/absl/log/internal/check_op.h257: | 488#:d32e:f inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'e
 abs  l488_ | n u lilnalbilnee  _cNounlsltaebxlper
       c| o                      ^n
st char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2region.cc:18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 489../src/s2/s2region.h::4724::
 In file included from ../src/s2/s1angle.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'28
:
In file included from ../src/s2/s2point.h:25  :
489In file included from  | ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h :c34o:
nIn file included from s/usr/local/clang/include/absl/log/log.ht: 209T:
1In file included from &/usr/local/clang/include/absl/log/internal/log_impl.h :v221:
,/usr/local/clang/include/absl/log/internal/log_message.h :c340o:n46s:t  warning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]2
& v  2340, |   c ofnrsite ncdh avro*i da bAsbls_lnFoonrnmualtlF leuxsphr(tSetxrti)n g{i f y S i n\k
*       | a                                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
si  n241k | ,#
d      e| f                                             ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2region_coverer.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2region_coverer.h/usr/local/clang/include/absl/status/internal/status_internal.h::3129:
:
In file included from ../src/s2/s2cell.h/usr/local/clang/include/absl/strings/cord.h::28109:
:In file included from 53../src/s2/s1chord_angle.h:: 29:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:  27109:
 | In file included from v../src/s2/s2coder.ho:i23d:
 In file included from C/usr/local/clang/include/absl/status/status.ho:p67y:
CIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hr:d29T:
oIn file included from S/usr/local/clang/include/absl/strings/cord.ht:r94i:
nIn file included from g/usr/local/clang/include/absl/strings/internal/cordz_info.h(:c31o:
n/usr/local/clang/include/absl/synchronization/mutex.hs:t801 :C20o:r dwarning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
src,   801s | t d :C:osntdriitnigo*n (abbosoll_ n(o*nanbuslll_ ndosntn)u;l
l       | f                                                    ^u
nc)/usr/local/clang/include/absl/base/nullability.h(:v241o:i22d:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | u#ldleafbiinlei tayb_suln_knnoonwnnu)l,l
       _| N                   ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2region_union.cc_:N18o:
nIn file included from n../src/s2/s2region_union.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^27
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2region_coverer.cc::2918:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2region_coverer.h::11031::
55In file included from :../src/s2/s2cell.h :28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1chord_angle.h:29:
In file included from   ../src/s2/s1angle.h110: | 28v:
oIn file included from i../src/s2/s2point.hd: 27A:
pIn file included from p../src/s2/s2coder.he:n23d:
CIn file included from o/usr/local/clang/include/absl/status/status.hr:d67T:
oIn file included from S/usr/local/clang/include/absl/status/internal/status_internal.ht:r29i:
nIn file included from g/usr/local/clang/include/absl/strings/cord.h(:c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht: 31C:
o/usr/local/clang/include/absl/synchronization/mutex.hr:d801&: 45s:r cwarning: ,type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
std:  :801s | t r iCnogn*d iatbisoln_(nboononlu l(l* adbsstl)_;n
o      n| n                                                      ^u
ll/usr/local/clang/include/absl/base/nullability.h :f241u:n22c:) (note: vexpanded from macro 'absl_nonnull'o
id  *241  | a#bdself_innuel laabbsill_intoyn_nuunlkln o_wNno)n,n
u      l| l                                            ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unIn file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* abslIn file included from _s2/s2shape_index_buffered_region.ccn:o18n:
nIn file included from u../src/s2/s2shape_index_buffered_region.hl:l23;:

In file included from       ../src/s2/s1angle.h| :                                      ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::25241:
:In file included from 22../src/s2/util/coding/coder.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/casts.h
:36:
  In file included from 241../src/s2/base/logging.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/log/check.hi:n37e:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_n/usr/local/clang/include/absl/log/internal/check_op.ho:n507n:u1l:l  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
onnu  l507l | 
A      B| S                     ^L
_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullIn file included from as2/s2region_union.ccb:l18e:
 In file included from n../src/s2/s2region_union.ha:m28e:
#In file included from #../src/s2/s2point.hI:m27p:
lIn file included from (../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 501 : 52 :\ 
warning:       | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                               ^

/usr/local/clang/include/absl/base/nullability.h  :501257 | : 23 :   note: eIn file included from expanded from macro 'absl_nullable'xs2/s2region.ccp
:l18i  :
c257iIn file included from  | t../src/s2/s2region.h# :dC24eh:
fuIn file included from in../src/s2/s1angle.hnk:eI28 t:
aeIn file included from br../src/s2/s2point.hsa:lt25_o:
nrIn file included from u(../src/s2/util/coding/coder.hlc:lo36ar:
bdIn file included from l_../src/s2/base/casts.hei: n34_t:
NeIn file included from ur/usr/local/clang/include/absl/log/log.hln:la209al:
b:In file included from l:/usr/local/clang/include/absl/log/internal/log_impl.heC:
o22      r:
| d                      ^/usr/local/clang/include/absl/log/internal/log_message.hR
:e398p:*11 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_noIn file included from   ns2/s2shape_index_buffered_region.cc398n: | u18 l:
 lIn file included from   ../src/s2/s2shape_index_buffered_region.h t:vr23oei:
edIn file included from )*../src/s2/s1angle.h; :
a28      b:
| sIn file included from                                                    ^l../src/s2/s2point.h
_:n25/usr/local/clang/include/absl/base/nullability.hu:
:lIn file included from 241l../src/s2/util/coding/coder.h:a:22b36:l:
 eIn file included from note:  ../src/s2/base/casts.hexpanded from macro 'absl_nonnull'c:
o36n:
  sIn file included from 241t../src/s2/base/logging.h | &:# 21vd:
)eIn file included from ;f/usr/local/clang/include/absl/log/check.h
i:      n37| e:
          ^ In file included from 
a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21/usr/local/clang/include/absl/base/nullability.hl:
:_257/usr/local/clang/include/absl/log/internal/check_op.hn::o23507n::n 1u:note: l expanded from macro 'absl_nullable'lwarning: 
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
  N257o/usr/local/clang/include/absl/log/internal/check_op.h | n:#n489du:le47lf:
i       n| enote:                      ^ expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
a
bsl_  n489u | l l a b l e  c_oNnusltl In file included from aTs2/s2region_union.ccb1:l&18e :

vIn file included from       1../src/s2/s2region_union.h| ,:                      ^ 28
c:
oIn file included from n../src/s2/s2point.hs:t27 :
TIn file included from 2../src/s2/s2coder.h&: 23v:
2In file included from ,/usr/local/clang/include/absl/status/status.h :c67o:
nIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht: 29c:
In file included from h/usr/local/clang/include/absl/strings/cord.hs2/s2region.cca::r50418*::
 40In file included from a:../src/s2/s2region.hb :swarning: 24l:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_In file included from 
n../src/s2/s1angle.ho:n  28n504:
u | In file included from l ../src/s2/s2point.hl :  25e :
xeIn file included from px../src/s2/util/coding/coder.hrp:tl36ei:
xcIn file included from ti../src/s2/base/casts.h)t:  34{C:
 hIn file included from  u/usr/local/clang/include/absl/log/log.h n: k209 I:
\tIn file included from 
e/usr/local/clang/include/absl/log/internal/log_impl.h      r:| a22                                              ^t:

o/usr/local/clang/include/absl/log/internal/log_message.hr:/usr/local/clang/include/absl/base/nullability.h(400:c:241o17:n:22s :t warning:  note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C
expanded from macro 'absl_nonnull'o
r  d  400*241 |   |  a# bd se lfc_ionnnoesn tnabsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 void*u ablskll _cnnoourwldnl) a;_b
Nl      ue| l                                        ^lc
_ounns/usr/local/clang/include/absl/base/nullability.hst:p&241e :cv22i):f; i
note: e      expanded from macro 'absl_nonnull'd| 

                ^      
  | 241                                 ^ | 
#/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'bIn file included from 
ss2/s2region_term_indexer.ccl:_75  n:
257oIn file included from  | n../src/s2/s2region_term_indexer.h#n:du106el:
flIn file included from In file included from i ../src/s2/s2cell_union.hs2/s2region_coverer.ccn_::eN2918 o:
:
anIn file included from /usr/local/clang/include/absl/flags/flag.hbn../src/s2/s2region_coverer.h:su:110ll31:_l:
29n
In file included from :u      ../src/s2/s2cell.h l| :                     ^warning: l28
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:

bIn file included from l../src/s2/s1chord_angle.he:   29_110:
N | In file included from uv../src/s2/s1angle.hlo:li28ad:
b In file included from l../src/s2/s2point.hSee:
t27      F:
| lIn file included from                       ^a../src/s2/s2coder.h
g:(23In file included from a:
s2/s2region_union.ccbIn file included from s:l/usr/local/clang/include/absl/status/status.h18:::
:67In file included from F:
../src/s2/s2region_union.hlIn file included from :a/usr/local/clang/include/absl/status/internal/status_internal.h28g::
<29In file included from T:
../src/s2/s2point.h>In file included from :*/usr/local/clang/include/absl/strings/cord.h27 ::
a94In file included from b:
../src/s2/s2coder.hsIn file included from :l/usr/local/clang/include/absl/strings/internal/cordz_info.h23_::
n31In file included from o:
/usr/local/clang/include/absl/status/status.hn/usr/local/clang/include/absl/synchronization/mutex.h:n:67u802:
l:In file included from l19/usr/local/clang/include/absl/status/internal/status_internal.h :f: l29warning: a:
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]g/usr/local/clang/include/absl/strings/cord.h,
: 507c:o43  n:802s t | warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T 
&   v   ) 507   | {  
          |                               ^ v
vooiidd *I na/usr/local/clang/include/absl/base/nullability.hib:ts241Tl:r_22en:eu (lnote: clexpanded from macro 'absl_nonnull'oa
rbdi_liin  tt241ye | _r#undnaeklfn:io:nwCeno  raadbrRsgel)p_;*n
 o      an| bn                  ^su
ll_ln /usr/local/clang/include/absl/base/nullability.ho_:nN289no:un34ln:lu  lnote: ltexpanded from macro 'absl_nullability_unknown'
r
      e| e                     ^  )
289; | 
#      d| e                                          ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | i#ldietfyi_nuen kanboswln_ n_oNnunlull_lu n_sNpoencniuflile
d      In file included from 
| s2/s2region_term_indexer.cc                           ^:| 
75                                 ^:

In file included from ../src/s2/s2region_term_indexer.h:106:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlagIn file included from (s2/s2region_coverer.cca:b18s:
lIn file included from :../src/s2/s2region_coverer.h::F31l:
aIn file included from g../src/s2/s2cell.h<:T28>:
*In file included from  ../src/s2/s1chord_angle.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hIn file included from l:s2/s2region_union.ccl27: :
18fIn file included from ../src/s2/s2coder.h:
l:In file included from a23../src/s2/s2region_union.hg:
:,In file included from 28 /usr/local/clang/include/absl/status/status.h:
c:In file included from o67../src/s2/s2point.hn:
:sIn file included from In file included from 27t/usr/local/clang/include/absl/status/internal/status_internal.hs2/s2region.cc:
 ::In file included from V2918../src/s2/s2coder.h&:
:
: In file included from In file included from 23v/usr/local/clang/include/absl/strings/cord.h../src/s2/s2region.h:
)::In file included from  9424/usr/local/clang/include/absl/status/status.h{:
:
:
In file included from In file included from 67      /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s1angle.h:
:| :In file included from 31                            ^28/usr/local/clang/include/absl/status/internal/status_internal.h:

:
:/usr/local/clang/include/absl/synchronization/mutex.hIn file included from 29:/usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h:
814:::/usr/local/clang/include/absl/strings/cord.h2412520:::
:52522In file included from  ::warning: ../src/s2/util/coding/coder.h35 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
note: 36 expanded from macro 'absl_nonnull':

warning: In file included from   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/base/casts.h  814
:241 | 34 |  :
#   In file included from d525C/usr/local/clang/include/absl/log/log.he | o:f n209i d:
n iIn file included from e t/usr/local/clang/include/absl/log/internal/log_impl.h ai:abo22bsnl:
s(/usr/local/clang/include/absl/log/internal/log_message.h:lb::_on425coo:oln31r n:d(u _*lwarning: ialtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nb 
ts_elNr_o  nnn425aon | lnu : nl:LulCoolr
gld      M R| e                     ^fes
supan*gc e)aF(baTst*la _lan(bucslolln_asnbtul lecl hacaburir*lr ieatnbyts__lul_nenkaonfno_nw un=l) l,n 
uf      li| ll                   ^pe
t,r /usr/local/clang/include/absl/base/nullability.h;i:
n241      t:|  22                                  ^l:
i n/usr/local/clang/include/absl/base/nullability.hnote: e:expanded from macro 'absl_nonnull')257
 :A23  B:241S  | Lnote: #_expanded from macro 'absl_nullable'dA
eTfT  iR257nI | eB# UdaTebEfs_ilCn_OenL oDan;bn
su      ll_| ln                              ^ u
_lNlo/usr/local/clang/include/absl/base/nullability.han:bn241lu:el22 l:_
 N      note: u| expanded from macro 'absl_nonnull'l                     ^
l
a  b241l | e#
d      e| fIn file included from                       ^is2/s2region_coverer.cc
n:e18 :
aIn file included from b../src/s2/s2region_coverer.hs:l31_:
nIn file included from o../src/s2/s2cell.hn:n28u:
lIn file included from l../src/s2/s1chord_angle.h :_29N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |  In file included from  s2/s2region.ccC:o18n:
dIn file included from i../src/s2/s2region.ht:i24o:
nIn file included from (../src/s2/s1angle.hb:o28o:
lIn file included from  ../src/s2/s2point.h(:*25a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
oIn file included from n../src/s2/base/casts.hn:u34l:
lIn file included from  /usr/local/clang/include/absl/log/log.hf:u209n:
cIn file included from )/usr/local/clang/include/absl/log/internal/log_impl.h(:T22*:
 /usr/local/clang/include/absl/log/internal/log_message.ha:b426s:l31_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abi  l426i | t y _LuongkMneoswsna)g,e
F      a| t                                         ^a
l(/usr/local/clang/include/absl/base/nullability.hc:o289n:s34t:  cnote: hexpanded from macro 'absl_nullability_unknown'a
r*   a289b | s#ld_enfoinnneu laIn file included from lbs2/s2region_union.cc s:fl18i_:
lnIn file included from eu../src/s2/s2region_union.h,l: l28ia:
nbIn file included from ti../src/s2/s2point.h l:li27it:
nyIn file included from e_../src/s2/s2coder.h,u:
n23      k:
| nIn file included from                               ^o/usr/local/clang/include/absl/status/status.h
w:n/usr/local/clang/include/absl/base/nullability.h67 ::
_241In file included from N:/usr/local/clang/include/absl/status/internal/status_internal.hu22:l:29l :
_note: /usr/local/clang/include/absl/strings/cord.huexpanded from macro 'absl_nonnull':n
582s:  p37241e: | c #iwarning: dftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ei
feidn
e         582a|  | b                                 ^ s
 l _ neoxnpnluilcli t_ NCohnunIn file included from nus2/s2region_coverer.cckl:Rl18a
:
n      In file included from g| ../src/s2/s2region_coverer.he                     ^:(
31c:
oIn file included from n../src/s2/s2cell.hs:t28 :
CIn file included from oIn file included from ../src/s2/s1chord_angle.hrs2/s2region.cc:d:29*18:
 :
In file included from aIn file included from ../src/s2/s1angle.hb../src/s2/s2region.h:s:28l24_:
:
nIn file included from In file included from o../src/s2/s2point.h../src/s2/s1angle.hn::28n27:
u:
In file included from lIn file included from ../src/s2/s2point.hl../src/s2/s2coder.h: :25c23:
o:
In file included from rIn file included from ../src/s2/util/coding/coder.hd/usr/local/clang/include/absl/status/status.h:):36 67:
::
In file included from  In file included from ../src/s2/base/casts.hc/usr/local/clang/include/absl/status/internal/status_internal.h:o:34r29:
d:
In file included from _In file included from /usr/local/clang/include/absl/log/log.h(/usr/local/clang/include/absl/strings/cord.h:c:209o94:
r:
dIn file included from In file included from )/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/strings/internal/cordz_info.h ::{2231}:
:

/usr/local/clang/include/absl/log/internal/log_message.h      /usr/local/clang/include/absl/synchronization/mutex.h:| :427                                    ^815:
:3116:: /usr/local/clang/include/absl/base/nullability.h :warning: warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
22
:   note:   427expanded from macro 'absl_nonnull'815 | 
 |        241   |   #  d  e  f  i  n  e     aT b* s  la _b nscolon_nnnsuutll llc ah_baNirol*ni ntauybl_slul
n_      kn| no                     ^on
wnnu lalr gf)a;i
l      u| r               ^e
_m/usr/local/clang/include/absl/base/nullability.hs:g289): 34A:B Snote: Lexpanded from macro 'absl_nullability_unknown'_
ATT  R289I | In file included from B#s2/s2region_union.ccUd:Te18Ef:
_iIn file included from Cn../src/s2/s2region_union.hOe:L 28Da:
;bIn file included from 
s../src/s2/s2point.h      l:| _27                              ^n:

uIn file included from l../src/s2/s2coder.h/usr/local/clang/include/absl/base/nullability.hl::a23241b:
:iIn file included from 22l/usr/local/clang/include/absl/status/status.h:i: t67note: y:
expanded from macro 'absl_nonnull'_In file included from 
u/usr/local/clang/include/absl/status/internal/status_internal.hn:  k29241n:
 | o/usr/local/clang/include/absl/strings/cord.h#w:dn588e :f_17iN:nu elwarning:  ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a_
busnl  s_588pn | eo cn in fu ilcelod n
_s      Nt| o                                  ^nC
nourldl*
       a| b                     ^s
l_nonnull cord_;
      | In file included from                 ^s2/s2region_coverer.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2region_coverer.h241::3122:
:In file included from  ../src/s2/s2cell.h:note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1chord_angle.h:  29241:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                     ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14:In file included from  s2/s2region.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2region.h:24:
  In file included from 830../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.h : 25b:
oIn file included from o../src/s2/util/coding/coder.hl: 36(:
*In file included from a../src/s2/base/casts.hb:s34l:
_In file included from n/usr/local/clang/include/absl/log/log.ho:n209n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.hl: 22f:
u/usr/local/clang/include/absl/log/internal/log_message.hn:cIn file included from 436)s2/s2region_union.cc:(:36T18:*:
  In file included from warning: a../src/s2/s2region_union.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b:
s28l:
_In file included from   n../src/s2/s2point.h436u: | l27 l:
 aIn file included from Lb../src/s2/s2coder.ho:ig23lM:
ieIn file included from ts/usr/local/clang/include/absl/status/status.hys:_a67ug:
neIn file included from kD/usr/local/clang/include/absl/status/internal/status_internal.hne:ob29wu:
ng/usr/local/clang/include/absl/strings/cord.h)F:,a641
t:      a33| l:             ^( 
cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n/usr/local/clang/include/absl/base/nullability.h
s:t241 :  c22641h: | a  rnote: * expanded from macro 'absl_nonnull'  
a b  us241sl | i_#nndgoe nfpniounilenl t aefbris ll=e_ ,nc
oo      nn| ns                                   ^ut
l lc/usr/local/clang/include/absl/base/nullability.h h:_a241Nr:o*22n :na ubnote: lsexpanded from macro 'absl_nonnull'll

_      n  | o241                     ^n | 
n#udlelf;i
nIn file included from       es2/s2region_coverer.cc | :                                ^
18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2region_coverer.h241::3122:
:In file included from  ../src/s2/s2cell.h:note: 28expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1chord_angle.h:  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abasl_bnsoln_nnuolnnull29 _:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullabiliIn file included from ts2/s2region.ccy:_18u:
nIn file included from k../src/s2/s2region.hn:o24w:
nIn file included from )../src/s2/s1angle.h,:
28      :
| In file included from                                    ^../src/s2/s2point.h
:25:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/util/coding/coder.h::28936::
34In file included from :../src/s2/base/casts.h :34note: :
expanded from macro 'absl_nullability_unknown'In file included from 
/usr/local/clang/include/absl/log/log.h:209  :
289In file included from  | /usr/local/clang/include/absl/log/internal/log_impl.h#:d22e:
f/usr/local/clang/include/absl/log/internal/log_message.hi:n446e: 43a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a446b | i l iLtoyg_MuensksnaogwenQ u_iNeutllly_DuenbsupgeFcaitfaile(dc
o      n| s                                 ^t
 char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2region_coverer.cc:note: 18expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2region_coverer.h:  31241:
 | In file included from #../src/s2/s2cell.hd:e28f:
iIn file included from n../src/s2/s1chord_angle.he: 29a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::tIn file included from ys2/s2region.ccp:e18*:
 In file included from a../src/s2/s2region.hb:s24l:
_In file included from n../src/s2/s1angle.hu:l28l:
aIn file included from b../src/s2/s2point.hi:l25i:
tIn file included from y../src/s2/util/coding/coder.h_:u36n:
kIn file included from n../src/s2/base/casts.ho:w34n:

In file included from       /usr/local/clang/include/absl/log/log.h| :                                             ^209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/base/nullability.h::22289:
:34/usr/local/clang/include/absl/log/internal/log_message.h:: 454:note: 38expanded from macro 'absl_nullability_unknown':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]289
 | #d  e454f | i n eL oagbMsels_snauglelQaubiieltiltyyF_autnakln(ocwonn s_tN uclhla_ru*n sapbescli_fnioendn
u      l| l                                 ^ 
file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2region_coverer.cci:n18e:
 In file included from a../src/s2/s2region_coverer.hb:s31l:
_In file included from n../src/s2/s2cell.ho:n28n:
uIn file included from l../src/s2/s1chord_angle.hl: 29_:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      27| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2region.cc844: | 18 :
 In file included from  ../src/s2/s2region.h : 24 :
TIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:
 In file included from o../src/s2/base/casts.hb:j34e:
cIn file included from t/usr/local/clang/include/absl/log/log.h,:
209      :
| In file included from          ^/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/log_message.h241::45622::38 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #456d | e f iLnoeg Maebsssla_gneoQnuniueltll y_FNaotnanlu(lclo
n      s| t                     ^ 
char* absl_nonnulIn file included from ls2/s2region_coverer.cc :f18i:
lIn file included from e../src/s2/s2region_coverer.h,: 31i:
nIn file included from t../src/s2/s2cell.h :l28i:
nIn file included from e../src/s2/s1chord_angle.h,:
29      :
| In file included from                                      ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u845l:l45 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l845
 |        |                       ^ 
   bool In file included from (s2/s2region.cca:b18s:
lIn file included from :../src/s2/s2region.h::t24y:
pIn file included from e../src/s2/s1angle.h_:i28d:
eIn file included from n../src/s2/s2point.ht:i25t:
yIn file included from <../src/s2/util/coding/coder.hT:>36::
:In file included from t../src/s2/base/casts.hy:p34e:
:In file included from :/usr/local/clang/include/absl/log/log.h*: 209a:
bIn file included from s/usr/local/clang/include/absl/log/internal/log_impl.hl:_22n:
o/usr/local/clang/include/absl/log/internal/log_message.hn:n457u:l38l:  mwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ho  d457) | ( ) ) ; 
        |                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dceofnisnte  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln uflali
l      u| r                     ^e
_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2region_coverer.cca:b18s:
lIn file included from _../src/s2/s2region_coverer.hn:o31n:
nIn file included from u../src/s2/s2cell.hl:l28 :
_In file included from N../src/s2/s1chord_angle.ho:n29n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
lIn file included from /usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31                     ^:

/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.hIn file included from :s2/s2region_union.cc25::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2region_union.h36::
28In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2point.h36::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/cord.h::511795::1343::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  795   | 511  |  cfornisetn dc hvaori*d  aAbbssll_FnourlmlaatbFlleu sChh(eacbksslt:r:cCmoprtdr*u eaIbmspll_(n
o      n| n            ^u
ll co/usr/local/clang/include/absl/base/nullability.hr:d257,:
23      :|                                            ^
note: expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/base/nullability.h:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullIn file included from as2/s2region_union.ccb:l18e:
 In file included from s../src/s2/s2region_union.h2:,28
:
      In file included from | ../src/s2/s2point.h                                              ^:
27:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::25723::
23In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
257 | /usr/local/clang/include/absl/strings/cord.h#:d898e:f27i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _898n | u l lfarbileen d_ Ncuolnlsatb lCeo
r      d| z                      ^I
nfo* absIn file included from ls2/s2shape_index_buffered_region.cc_:n18u:
lIn file included from l../src/s2/s2shape_index_buffered_region.ha:b23l:
eIn file included from  ../src/s2/s1angle.hG:e28t:
CIn file included from o../src/s2/s2point.hr:d25z:
IIn file included from n../src/s2/util/coding/coder.hf:o36F:
oIn file included from r../src/s2/base/casts.hT:e36s:
tIn file included from i../src/s2/base/logging.hn:g21(:

In file included from       /usr/local/clang/include/absl/log/check.h| :                          ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21257:
:23/usr/local/clang/include/absl/log/internal/check_op.h:: 513:note: 17expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #d  e513f | i n e   acbosnls_tn uclhlaarb*l ea b_sNlu_lnloanbnluel
l       | e                      ^x
prtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2region_union.cc::25718::
23In file included from :../src/s2/s2region_union.h :28note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2point.h:27  :
257In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.hu:l927l:a43b:l ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
Null  a927b | l e 
        |                        ^ 
     In file included from  s2/s2shape_index_buffered_region.cc : 18 :
 In file included from  ../src/s2/s2shape_index_buffered_region.h : 23 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h :C36o:
rIn file included from d../src/s2/base/casts.hR:e36p:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:
 /usr/local/clang/include/absl/log/internal/check_op.hr:e515p:)17;:
       | warning:                                           ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:  257515: | 23 :   note:  expanded from macro 'absl_nullable'c
on  s257t |  #cdheafri*n ea basbls_ln_unlullalbalbel es 1_,N uclolnasbtl ec
h      a| r                      ^*
 absl_nullable s2,
      | In file included from                 ^s2/s2region_union.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2region_union.h257::2823:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'absl_nullable':

In file included from ../src/s2/s2coder.h:  23257:
 | In file included from #/usr/local/clang/include/absl/status/status.hd:e67f:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29a:
b/usr/local/clang/include/absl/strings/cord.hs:l929_:n26u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le   _929N | u l l a bvloei
d       | S                      ^w
ap(InlineIn file included from Rs2/s2shape_index_buffered_region.cce:p18*:
 In file included from a../src/s2/s2shape_index_buffered_region.hb:s23l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 25r:
hIn file included from s../src/s2/util/coding/coder.h):;36
:
      In file included from | ../src/s2/base/casts.h                         ^:
36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/logging.h::24121::
22In file included from :/usr/local/clang/include/absl/log/check.h :37note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21  :
241 | /usr/local/clang/include/absl/log/internal/check_op.h#:d515e:f47i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl  _515n | o n n u lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nullable s1, const charIn file included from *s2/s2region_union.cc :a18b:
sIn file included from l../src/s2/s2region_union.h_:n28u:
lIn file included from l../src/s2/s2point.ha:b27l:
eIn file included from  ../src/s2/s2coder.hs:223,:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                              ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29257:
:23/usr/local/clang/include/absl/strings/cord.h:: 932:note: 17expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257
 | #d  e932f | i n e   acbosnls_tn uclhlaarb*l ea b_sNlu_lnlualbllaeb
l      e|                        ^d
ata() In file included from cs2/s2shape_index_buffered_region.cco:n18:
In file included from s../src/s2/s2shape_index_buffered_region.ht:;23
:
      In file included from | ../src/s2/s1angle.h                ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::25725::
23In file included from :../src/s2/util/coding/coder.h :36note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/casts.h:36  :
257In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l516l:a17b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Nu  l516l | a b l e 
c      o| n                      ^s
t char* absl_nIn file included from os2/s2region_union.ccn:n18u:
lIn file included from l../src/s2/s2region_union.h :e28x:
pIn file included from r../src/s2/s2point.ht:e27x:
tIn file included from )../src/s2/s2coder.h;:
23      :
| In file included from                 ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
: /usr/local/clang/include/absl/strings/cord.h:note: 934expanded from macro 'absl_nonnull':
31:   241warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]#
def  i934n | e   a b svlo_indo nsneutl_ld a_tNao(ncnounlslt
       c| h                     ^a
r* absl_nullabIn file included from ls2/s2shape_index_buffered_region.cce: 18d:
aIn file included from t../src/s2/s2shape_index_buffered_region.ha:,23 :
sIn file included from i../src/s2/s1angle.hz:e28_:
tIn file included from  ../src/s2/s2point.hn:)25;:

In file included from       ../src/s2/util/coding/coder.h| :                              ^36
:
In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.h::36257:
:In file included from 23../src/s2/base/logging.h:: 21:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/check.h
:37:
  In file included from 257/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i517n:e13 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_nulla  b517l | ec o_nNsutl lcahbalre*
       a| b                      ^s
l_nullable ChecIn file included from ks2/s2region_union.ccs:t18r:
cIn file included from a../src/s2/s2region_union.hs:e28c:
mIn file included from p../src/s2/s2point.ht:r27u:
eIn file included from I../src/s2/s2coder.hm:p23l:
(In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67            ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
257:/usr/local/clang/include/absl/strings/cord.h23::935 :11note: :expanded from macro 'absl_nullable' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
257 | #d  e935f | i n e   acbhsalr_*n ualblsalb_lneo n_nNuullll asbelte_
d      a| t                      ^a
(sizeIn file included from _s2/s2shape_index_buffered_region.cct: 18n:
)In file included from ;../src/s2/s2shape_index_buffered_region.h : 23/:
/In file included from  ../src/s2/s1angle.hW:r28i:
tIn file included from e../src/s2/s2point.h :d25a:
tIn file included from a../src/s2/util/coding/coder.h :t36o:
 In file included from t../src/s2/base/casts.hh:e36 :
rIn file included from e../src/s2/base/logging.hs:u21l:
tIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37          ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241:/usr/local/clang/include/absl/log/internal/check_op.h22::518 :17note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]241
 | #d  e518f | i n e   acbosnls_tn ocnhnaurl*l  a_bNsoln_nnuullll
a      b| l                     ^e
 s1, const char* absIn file included from ls2/s2region_union.cc_:n18u:
lIn file included from l../src/s2/s2region_union.ha:b28l:
eIn file included from  ../src/s2/s2point.hs:227,:

In file included from       ../src/s2/s2coder.h| :                ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67257:
:In file included from 23/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nullable':
937:35  :257  | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n937e |   a b s la_bnsull:l:acbolredn_uilnlt e_rNnoanln:u:lClo
r      d| R                     ^e
p* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullabIn file included from ls2/s2region_coverer.cce: 18_:
NIn file included from u../src/s2/s2region_coverer.hl:l31a:
bIn file included from l../src/s2/s2cell.he:
28      :
| In file included from                       ^../src/s2/s1chord_angle.h
:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2region_union.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2region_union.h31::
28:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2point.h886::2731:
:In file included from  ../src/s2/s2coder.h:warning: 23:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h886: | 29 :
 /usr/local/clang/include/absl/strings/cord.he:x938p:l35i:c iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Con  d938i | t i o n (acbosnls:t: cTo*r da_bisnlt_enronnanlu:l:lC oorbdjR)e
      | p                              ^*
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   a241s | _#tdreefei(n)e  caobnsslt_;n
o      n| n                                  ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     constIn file included from  s2/s2region_coverer.ccc:h18a:
rIn file included from *../src/s2/s2region_coverer.h :a31b:
sIn file included from l../src/s2/s2cell.h_:n28o:
nIn file included from n../src/s2/s1chord_angle.hu:l29l:
 In file included from a../src/s2/s1angle.hs:_28c:
hIn file included from a../src/s2/s2point.hr:s27(:
)In file included from  ../src/s2/s2coder.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/status/status.h;:
67      :
| In file included from                 ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  896241: | 31#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a896b | s l _enxopnlniuclilt  _CNoonndniutlilo
n      (| c                     ^o
nst T* absl_noIn file included from ns2/s2region_union.ccn:u18l:
lIn file included from  ../src/s2/s2region_union.ho:b28j:
)In file included from 
../src/s2/s2point.h      :| 27                              ^:

In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nonnull'29
:
  241/usr/local/clang/include/absl/strings/cord.h | :#941d:e35f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l941_ | n o n n ualbls l_:N:ocnonrudl_li
n      t| e                     ^r
nal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2/s2region_coverer.cci:n18e:
 In file included from a../src/s2/s2region_coverer.hb:s31l:
_In file included from n../src/s2/s2cell.hu:l28l:
aIn file included from b../src/s2/s1chord_angle.hl:e29 :
_In file included from N../src/s2/s1angle.hu:l28l:
aIn file included from b../src/s2/s2point.hl:e27
:
      In file included from | ../src/s2/s2coder.h                      ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuarIn file included from as2/s2region_union.ccn:t18e:
eIn file included from d../src/s2/s2region_union.hE:q28u:
aIn file included from l../src/s2/s2point.h(:c27o:
nIn file included from s../src/s2/s2coder.ht: 23C:
oIn file included from n/usr/local/clang/include/absl/status/status.hd:i67t:
iIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s950l:_18n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   950a | , 
        |                                                 ^C
or/usr/local/clang/include/absl/base/nullability.hd:R257e:p23F:l anote: texpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bMsalk_enFullaltaWbilteh E_xNturlalCaabplaec
i      t| y                      ^(
size_t extrIn file included from as2/s2region_coverer.cc):;18
:
      In file included from | ../src/s2/s2region_coverer.h                 ^:
31:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2cell.h::24128::
22In file included from :../src/s2/s1chord_angle.h :29note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :_94N:
oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.h
:      923| :                     ^48
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |           In file included from  s2/s2region_union.cc : 18 :
 In file included from  ../src/s2/s2region_union.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from c/usr/local/clang/include/absl/status/status.ho:n67s:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hC:o29n:
d/usr/local/clang/include/absl/strings/cord.hi:t957i:o27n:*  warning: abtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  u957l | l a b l ev obi)d; 
S      e| t                                               ^T
re/usr/local/clang/include/absl/base/nullability.he:(257C:o23r:d Rnote: eexpanded from macro 'absl_nullable'p
*   a257b | s#ld_enfoinnneu lalb srle_pn,u lcloanbslte  C_oNrudlzlUapbdlaet
e      S| c                      ^o
pe& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2region_coverer.ccn:u18l:
lIn file included from 
../src/s2/s2region_coverer.h      :| 31                     ^:

In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2region_union.cc29::
18In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2region_union.h94::
28In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2point.h31::
27:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2coder.h948::2310:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h  :948961 | :34 :  bwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
l (  *961a | b s l _ nvuolilda bSleet TerveaelO_r)E(mcpotnys(tC oCrodnRdeipt*i oanb*s la_bnsull_lnaobnlneu lrle)p ,=
       n| u                                 ^l
lp/usr/local/clang/include/absl/base/nullability.ht:r257;:
23      :|           ^note: 
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/base/nullability.h  :257257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfuilnlea balbes l__Nnuullllaabbllee
       _| N                      ^u
llable
      |                       ^
In file included from s2/s2region_coverer.cc:18In file included from :
s2/s2region_union.ccIn file included from :../src/s2/s2region_coverer.h18::
31In file included from :
../src/s2/s2region_union.hIn file included from :../src/s2/s2cell.h28::
28In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s1chord_angle.h27::
29In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s1angle.h23::
28In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2point.h67::
27In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2coder.h29::
23:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/status.h968::6731:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 968/usr/local/clang/include/absl/strings/internal/cordz_info.h | : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :v948o:i48d:  Ewarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
lac  e948T | r e eb(oCoolr d(R*eapb*s la_bnsull_lnaobnlneu lelv arle_p),( cMoentshto dCIodnednittiifoine*r  ambestlh_ondo)n;n
u      l| l                              ^)
 =/usr/local/clang/include/absl/base/nullability.h :n241u:l22l:p tnote: rexpanded from macro 'absl_nonnull';

        | 241                                               ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:In file included from 67s2/s2region_coverer.cc:
:In file included from 18/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2region_coverer.h:
:31/usr/local/clang/include/absl/strings/cord.h:
:In file included from 972../src/s2/s2cell.h::3128::
 In file included from ../src/s2/s1chord_angle.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
In file included from ../src/s2/s1angle.h:28  :
972In file included from  | ../src/s2/s2point.h : 27 :
 In file included from v../src/s2/s2coder.ho:i23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29d:
  E_mNpullalcaebTlree
e      (| C                      ^o
rdRep* absl_nonnull rep,In file included from  s2/s2shape_index_buffered_region.ccc:o18n:
sIn file included from t../src/s2/s2shape_index_buffered_region.h :I23n:
lIn file included from i../src/s2/s1angle.hn:e28D:
aIn file included from t../src/s2/s2point.ha:&25 :
pIn file included from a../src/s2/util/coding/coder.hr:e36n:
tIn file included from ,../src/s2/base/casts.h
:      36| :
                              ^In file included from 
../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
518:47:   241 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efine   518a | b s l _ ncoonnnsutl lc h_aNro*n naublsll
_      n| u                     ^l
lable s1, const char* absl_nullable s2,
In file included from       s2/s2region_union.cc| :                                              ^18
:
In file included from ../src/s2/s2region_union.h:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h257::2723:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/status/status.h:  67257:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
i/usr/local/clang/include/absl/strings/cord.hn:e978 :a36b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ull  a978b | l e   _ Nvuolilda bCloem
m      i| t                      ^T
ree(conIn file included from ss2/s2shape_index_buffered_region.cct: 18C:
oIn file included from r../src/s2/s2shape_index_buffered_region.hd:R23e:
pIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n25u:
lIn file included from l../src/s2/util/coding/coder.ha:b36l:
eIn file included from  ../src/s2/base/casts.ho:l36d:
_In file included from r../src/s2/base/logging.he:p21,:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                   ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21257:
:23/usr/local/clang/include/absl/log/internal/check_op.h:: 519:note: 17expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #d  e519f | i n e   acbosnls_tn uclhlaarb*l ea b_sNlu_lnloanbnluel
l       | e                      ^x
prtext);
      In file included from | s2/s2region_union.cc                ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2region_union.h::24128::
22In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s979l:_30n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   _979N | o n n u l l 
        |                       ^ 
          CordRep* aIn file included from bs2/s2shape_index_buffered_region.ccs:l18_:
nIn file included from o../src/s2/s2shape_index_buffered_region.hn:n23u:
lIn file included from l../src/s2/s1angle.h :r28e:
pIn file included from ,../src/s2/s2point.h :c25o:
nIn file included from s../src/s2/util/coding/coder.ht: 36C:
oIn file included from r../src/s2/base/casts.hd:z36U:
pIn file included from d../src/s2/base/logging.ha:t21e:
SIn file included from c/usr/local/clang/include/absl/log/check.ho:p37e:
&In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hs:c21o:
p/usr/local/clang/include/absl/log/internal/check_op.he:,520
:      13| :                             ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:   520 | note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlu_lnloanbnluel lC h_eNcoknsnturlcla
s      e| c                     ^m
pfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2region_union.ccexpanded from macro 'absl_nullable':
18:
In file included from   ../src/s2/s2region_union.h257: | 28#:
dIn file included from e../src/s2/s2point.hf:i27n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:l29e:
 /usr/local/clang/include/absl/strings/cord.h_:N982u:l39l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      |                       ^  
982 |     In file included from vs2/s2shape_index_buffered_region.cco:i18d:
 In file included from A../src/s2/s2shape_index_buffered_region.hp:p23e:
nIn file included from d../src/s2/s1angle.hT:r28e:
eIn file included from T../src/s2/s2point.ho:I25n:
lIn file included from i../src/s2/util/coding/coder.hn:e36d:
(In file included from C../src/s2/base/casts.ho:r36d:
RIn file included from e../src/s2/base/logging.hp:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 521t:r17e:e ,warning: 
      type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 
                                      ^
  /usr/local/clang/include/absl/base/nullability.h521: | 241 : 22 :  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsull_lnaobnlneu lsl1 ,_ Ncoonnnsutl lc
h      a| r                     ^*
 absl_nullable s2In file included from ,s2/s2region_union.cc
:      18| :
                ^In file included from 
../src/s2/s2region_union.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2point.h::2327::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nullable'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :25767 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
n/usr/local/clang/include/absl/strings/cord.he: 984a:b36s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b984l | e   _ N uvloliadb lAep
p      e| n                      ^d
TreeToTreIn file included from es2/s2shape_index_buffered_region.cc(:C18o:
rIn file included from d../src/s2/s2shape_index_buffered_region.hR:e23p:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o25n:
nIn file included from u../src/s2/util/coding/coder.hl:l36 :
tIn file included from r../src/s2/base/casts.he:e36,:
 In file included from M../src/s2/base/logging.he:t21h:
oIn file included from d/usr/local/clang/include/absl/log/check.hI:d37e:
nIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hi:f21i:
e/usr/local/clang/include/absl/log/internal/check_op.hr: 521m:e47t:h owarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
;
      |                                      ^521
 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en ualblsalb_lneo nsn1u,l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullable s2,
      |                                               ^In file included from 
s2/s2region_union.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/s2region_union.h::2328::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nullable'27
:
In file included from ../src/s2/s2coder.h  :25723 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
s/usr/local/clang/include/absl/strings/cord.hl:_985n:u30l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e _  N985u | l l a b lveo
i      d|                        ^A
ppendIn file included from Ts2/s2shape_index_buffered_region.ccr:e18e:
(In file included from C../src/s2/s2shape_index_buffered_region.ho:r23d:
RIn file included from e../src/s2/s1angle.hp:*28 :
aIn file included from b../src/s2/s2point.hs:l25_:
nIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h :t36r:
eIn file included from e../src/s2/base/logging.h,: 21M:
eIn file included from t/usr/local/clang/include/absl/log/check.hh:o37d:
IIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:n21t:
i/usr/local/clang/include/absl/log/internal/check_op.hf:i522e:r17 :m ewarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
od  )522; | 
        |                               ^ 
co/usr/local/clang/include/absl/base/nullability.hn:241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb selx_pnrotnenxutl)l; 
_      N| o                ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2region_union.ccb:s18l:
_In file included from n../src/s2/s2region_union.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 | In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:    void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2region_union.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2region_union.h:
:In file included from 28/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1033/usr/local/clang/include/absl/status/internal/status_internal.h::2029::
 /usr/local/clang/include/absl/strings/cord.hwarning: :999type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
1033 |     999v | o i d   Wvaoiitd( MCuotpeyxT*o Aarbrsaly_(ncohnanru*l la bmsul)_ n{o
n      n| u                   ^l
l d/usr/local/clang/include/absl/base/nullability.hs:t241): 22c:o nnote: sexpanded from macro 'absl_nonnull't
;
        241|  |                            ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:In file included from 27s2/s2region_union.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2region_union.h:
:In file included from 28/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/synchronization/mutex.h:
:1050/usr/local/clang/include/absl/strings/cord.h::311012:: 37:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1050  | 1012  |   b o o la bWsali:t:WciotrhdT_iimnetoeurtn(aMlu:t:eCxo*r dazbIsnlf_on*o nanbuslll_ nmuul,l aabblsel :c:oDrudrza_tiinofno (t)i mceoonustt)  {{

            | |                                     ^                              ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257241::2322::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nonnull'

    257241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaubllle  __NNounlnlualbll
e      
|                            ^| 
                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2region_coverer.cc::2718:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2region_coverer.h::2331:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2cell.h::6728:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s1chord_angle.h::2929:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s1angle.h1017::2851:
:In file included from  ../src/s2/s2point.h:warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23:
 In file included from 1017/usr/local/clang/include/absl/status/status.h | : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hv:o29i:
dIn file included from  /usr/local/clang/include/absl/strings/cord.hs:e94t:
_In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31d:
z/usr/local/clang/include/absl/synchronization/mutex.h_:i1069n:f32o:( cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
d_in t1069e | r n ablo:o:lC oWradiztIWniftoh*D eaabdslli_nneo(nMnuutlelx *c oarbdszl__innofnon)u l{l
       m| u                                                  ^,
 a/usr/local/clang/include/absl/base/nullability.hb:s241l::22::T inote: mexpanded from macro 'absl_nonnull'e
 d  e241a | d#ldienfei)n e{ 
a      b| s                               ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2region_union.cc1088: | 18 :
 In file included from v../src/s2/s2region_union.ho:i28d:
 In file included from E../src/s2/s2point.hn:a27b:
lIn file included from e../src/s2/s2coder.hD:e23b:
uIn file included from g/usr/local/clang/include/absl/status/status.hL:o67g:
(In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
t/usr/local/clang/include/absl/strings/cord.h :c1049h:a56r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n u1049l | l a bsltea tniacm eb)o;o
l       | G                                  ^e
tF/usr/local/clang/include/absl/base/nullability.hl:a257t:A23u:x (note: aexpanded from macro 'absl_nullable'b
sl  :257: | c#odredf_iinnet earbnsall_:n:uClolradbRleep *_ Naublslla_bnloen
n      u| l                      ^l
 rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2region_coverer.cc241: | 18#:
dIn file included from e../src/s2/s2region_coverer.hf:i31n:
eIn file included from  ../src/s2/s2cell.ha:b28s:
lIn file included from _../src/s2/s1chord_angle.hn:o29n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26In file included from :s2/s2region_union.cc :18warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2region_union.h
:28:
In file included from  ../src/s2/s2point.h1091: | 27 :
 In file included from b../src/s2/s2coder.ho:o23l:
 In file included from W/usr/local/clang/include/absl/status/status.ha:i67t:
CIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hm:m29o:
n/usr/local/clang/include/absl/strings/cord.h(:M1050u:t45e:x *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl _1050n | o n n u l l   m u t e x , 
        |                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  anote: bexpanded from macro 'absl_nonnull's
l:  :241s | t#rdienfgi_nvei eawb*s la_bnsoln_nnuolnln u_lNlo nfnrualglm
e      n| t                     ^)
;
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2region_coverer.ccb:s18l:
_In file included from n../src/s2/s2region_coverer.ho:n31n:
uIn file included from l../src/s2/s2cell.hl: 28_:
NIn file included from o../src/s2/s1chord_angle.hn:n29u:
lIn file included from l../src/s2/s1angle.h
:      28| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: In file included from warning: s2/s2region_union.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2region_union.h:28 :
1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h :105431 | :
 In file included from  ../src/s2/s2cell.h : 28 :
 In file included from a../src/s2/s1chord_angle.hb:s29l:
:In file included from :../src/s2/s1angle.hc:o28r:
dIn file included from _../src/s2/s2point.hi:n27t:
eIn file included from r../src/s2/s2coder.hn:a23l:
:In file included from :/usr/local/clang/include/absl/status/status.hC:o67r:
dIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.he:p29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1146 :r7e:p ,warning: 
      'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]| 
                                    ^
 /usr/local/clang/include/absl/base/nullability.h1146: | 241: 22 :   note:  expanded from macro 'absl_nonnull' 
th  i241s | )#)d eAfBiSnLe_ EaXbCsLlU_SnIoVnEn_uLlOlC K__NFoUnNnCuTlIlO
N      (| m                     ^u
)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 In file included from 1153s2/s2region_union.cc | : 18 :
eIn file included from x../src/s2/s2region_union.hp:l28i:
cIn file included from i../src/s2/s2point.ht: 27R:
eIn file included from l../src/s2/s2coder.he:a23s:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67M:
uIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:x29L:
o/usr/local/clang/include/absl/strings/cord.hc:k1061(:M34u:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab s1061l | _ n ovnoniudl lC ompuy)T
o      A| r                                      ^r
ayS/usr/local/clang/include/absl/base/nullability.hl:o241w:P22a:t hnote: (expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_ ndosntn)u lclo n_sNto;n
n      u| l                                 ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2region_coverer.cc                     ^:
18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   abs/usr/local/clang/include/absl/synchronization/mutex.hl::1166::c39o:r dwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nter n1166a | l : :eCxoprldiRceipt*  Raeblsela_snaobnlneuMlult eTxaLkoecRke(pM(u)t ecxo*n satb&s;l
_      n| o                                ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :m22u:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | C#odnedfiitnieo na&b sclo_nndo)n
n      u| l                                      ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
      expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_nonnIn file included from us2/s2region_union.ccl:l18 :
_In file included from N../src/s2/s2region_union.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nIn file included from os2/s2region_coverer.ccn:n18u:
lIn file included from l../src/s2/s2region_coverer.h :T31a:
kIn file included from e../src/s2/s2cell.hR:e28p:
(In file included from )../src/s2/s1chord_angle.h :&29&:
;In file included from 
../src/s2/s1angle.h      :| 28                                ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n1179o:n10n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
_No n1179n | u l lM
u      t| e                     ^x
* absl_nullaIn file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ble mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnullIn file included from  s2/s2region_union.ccf:n18):
(In file included from 
../src/s2/s2region_union.h      :| 28                                  ^:

In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e1222f:i52n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n o1222n | niunllli n_eN ovnoniudl lC
o      r| d                     ^:
:InlinIn file included from es2/s2region_coverer.ccR:e18p:
:In file included from :../src/s2/s2region_coverer.hS:w31a:
pIn file included from (../src/s2/s2cell.hC:o28r:
dIn file included from :../src/s2/s1chord_angle.h::I29n:
lIn file included from i../src/s2/s1angle.hn:e28R:
eIn file included from p../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hr:h29s:
)In file included from  /usr/local/clang/include/absl/strings/cord.h{:
94      :
| In file included from                                                    ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::2411310::2217::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |  #1310d | e f i n ec oanbsstl char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:109:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:75:
In file included from ../src/s2/s2region_term_indexer.h:109:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                      In file included from   s2/s2region.cc : 18 :
 In file included from  ../src/s2/s2region.h : 24 :
 In file included from  ../src/s2/s1angle.hs:t28d:
:In file included from :../src/s2/s2point.hs:t25r:
iIn file included from n../src/s2/util/coding/coder.hg:*36 :
aIn file included from b../src/s2/base/casts.hs:l36_:
nIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :d37s:
tIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h;:21
:
      | /usr/local/clang/include/absl/log/internal/check_op.h                                              ^:
180:42: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22: note: expanded from macro 'absl_nonnull'  
180 | A  B241S | L#_dAeTfTiRnIeB UaTbEs_lP_UnRoEn_nFuUlNlC T_INOoNn ncuolnls
t       | c                     ^h
ar* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2region_coverer.cc| :                     ^18
:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2region.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2region.hIn file included from :/usr/local/clang/include/absl/status/status.h24::
67In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h28::
29In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/strings/cord.h25::
480In file included from :../src/s2/util/coding/coder.h39::36 :
In file included from warning: ../src/s2/base/casts.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
:
In file included from ../src/s2/base/logging.h:21  :
480In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from u/usr/local/clang/include/absl/log/internal/check_impl.hs:i21n:
g/usr/local/clang/include/absl/log/internal/check_op.h :p181o:i25n:t ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
= c  o181n | s t   v aclounes_tt yapbes*l :a:bSstla_tnuosn*n ualbls;l
_      n| o                                      ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241s:t22a:t unote: sexpanded from macro 'absl_nonnull',
 c  o241n | s#td ecfhianre*  aabbssll__nnoonnnnuullll  _pNroenfniuxl)l;

            | |                      ^                        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::In file included from Ss2/s2region_coverer.cct:a18t:
uIn file included from s../src/s2/s2region_coverer.h*: 31a:
bIn file included from s../src/s2/s2cell.hl:_28n:
oIn file included from n../src/s2/s1chord_angle.hn:u29l:
lIn file included from  ../src/s2/s1angle.hs:t28a:
tIn file included from u../src/s2/s2point.hs:,27 :
cIn file included from o../src/s2/s2coder.hn:s23t:
 In file included from c/usr/local/clang/include/absl/status/status.hh:a67r:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l/usr/local/clang/include/absl/strings/cord.h_:n501o:n52n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
pref  i501x | ) ; 
        | e                                                         ^x
pl/usr/local/clang/include/absl/base/nullability.hi:c241i:t22 :C hnote: uexpanded from macro 'absl_nonnull'n
kI  t241e | r#adteofri(nceo radb_siln_tneornnnaull:l: C_oNrodnRneupl*l 
a      b| s                     ^l
_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2region.cc
:18:
  In file included from 241../src/s2/s2region.h | :#24d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.ho:n36n:
uIn file included from l../src/s2/base/casts.hl: 36_:
NIn file included from o../src/s2/base/logging.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h
:      37| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline cIn file included from os2/s2region_coverer.ccn:s18t:
In file included from  ../src/s2/s2region_coverer.ha:b31s:
lIn file included from :../src/s2/s2cell.h::S28t:
aIn file included from t../src/s2/s1chord_angle.hu:s29*:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23A:
sIn file included from S/usr/local/clang/include/absl/status/status.ht:a67t:
uIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.h(:c29o:
n/usr/local/clang/include/absl/strings/cord.hs:t504 :a40b:s lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
Sta  t504u | s &   s )e x{p
l      i| c                           ^i
t /usr/local/clang/include/absl/base/nullability.hC:h241u:n22k:I tnote: eexpanded from macro 'absl_nonnull'r
at  o241r | (#cdoenfsitn eC oarbds*l _anbosnln_unloln n_uNloln ncuolrld
)      ;| 
                     ^      
|                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2region_coverer.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from ../src/s2/s2region_coverer.h/usr/local/clang/include/absl/log/internal/check_op.h::31193:
:In file included from 21../src/s2/s2cell.h:: 28:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1chord_angle.h
:29:
In file included from ../src/s2/s1angle.h  :19328 | :
cIn file included from o../src/s2/s2point.hn:s27t:
 In file included from a../src/s2/s2coder.hb:s23l:
:In file included from :/usr/local/clang/include/absl/status/status.hS:t67a:
tIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hs:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s507l:_43n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   A507s | S t a t uvso(icdo nIsnti taTbrsele:(:cSotradt_uisnOtre<rTn>a&l :s:)C o{r
d      R| e                    ^p
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | t#rdeeef)i;n
e       | a                                          ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2region_coverer.cc:18:
In file included from   ../src/s2/s2region_coverer.h202: | 31 :
 In file included from e../src/s2/s2cell.hx:p28l:
iIn file included from c../src/s2/s1chord_angle.hi:t29 :
CIn file included from h../src/s2/s1angle.he:c28k:
OIn file included from p../src/s2/s2point.hM:e27s:
sIn file included from a../src/s2/s2coder.hg:e23B:
uIn file included from i/usr/local/clang/include/absl/status/status.hl:d67e:
rIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
s/usr/local/clang/include/absl/strings/cord.ht: 525c:h35a:r *warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_  n525o | n n u l la besxlp:r:tceoxrtd)_;i
n      t| e                                             ^r
na/usr/local/clang/include/absl/base/nullability.hl::241::C22o:r dnote: Rexpanded from macro 'absl_nonnull'e
p*   241a | b#sdle_fniunlel aabblsel _cnuornrneunltl_ l_eNaofn_n u=l ln
u      l| l                     ^p
tr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullabIn file included from ls2/s2region.cce:
18      :
| In file included from                       ^../src/s2/s2region.h
:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostrIn file included from es2/s2region_coverer.cca:m18&:
 In file included from o../src/s2/s2region_coverer.hs:,31 :
cIn file included from o../src/s2/s2cell.hn:s28t:
 In file included from v../src/s2/s1chord_angle.ho:i29d:
*In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:u27l:
lIn file included from a../src/s2/s2coder.hb:l23e:
 In file included from p/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                                                          ^:
29:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::582257::3723::  warning: note: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable's2/s2region_union.cc

:18:
  In file included from 257  ../src/s2/s2region_union.h | 582:# | 28d :
e In file included from f ../src/s2/s2point.hi :ne27ex:
 pIn file included from al../src/s2/s2coder.hbi:sc23li:
_tIn file included from n /usr/local/clang/include/absl/status/status.huC:lh67lu:
anIn file included from bk/usr/local/clang/include/absl/status/internal/status_internal.hlR:ea29 n:
_g/usr/local/clang/include/absl/strings/cord.hNe:u(1525lc:lo29an:bs ltwarning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
C
      o| r                      ^d
 *1525  | a b s l _cnoorndn_uilnlt ecronradl): ::C ocrodrRde_p(*c oarbds)l _{n}o
n      n| u                                    ^l
l t/usr/local/clang/include/absl/base/nullability.hr:e241e:)22 :{ 
      note: | expanded from macro 'absl_nonnull'                            ^

  241/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  a_bNsoln_nnuolnln
u      l| l                     ^ 
_Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nIn file included from os2/s2region.ccn:n18u:
In file included from lIn file included from s2/s2region_union.ccl../src/s2/s2region.h: :18c24:
o:
In file included from rIn file included from ../src/s2/s2region_union.hd../src/s2/s1angle.h:_:28;28:

:
In file included from       In file included from ../src/s2/s2point.h| ../src/s2/s2point.h:                ^:27
25:
:
In file included from /usr/local/clang/include/absl/base/nullability.hIn file included from ../src/s2/s2coder.h:../src/s2/util/coding/coder.h:241:23:36:
22:
In file included from :In file included from /usr/local/clang/include/absl/status/status.h ../src/s2/base/casts.h:note: :67expanded from macro 'absl_nonnull'36:

:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  ../src/s2/base/logging.h:241:29 | 21:
#:
/usr/local/clang/include/absl/strings/cord.hdIn file included from :e/usr/local/clang/include/absl/log/check.h1530f::i3755n:
:eIn file included from   /usr/local/clang/include/absl/log/internal/check_impl.hwarning: a:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b21
s:
l/usr/local/clang/include/absl/log/internal/check_op.h_: n2761530o: | n13in:nu llwarning: iltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n 
e_ NC  oo276nr | ndcu:ol:nlCs
ht      u | nv                     ^ko
Iitde*r aatbosrl:_:nCuhlulnakbIltee roapteorra(tcoorn<s<t( sCtodr:d:*o satbrsela_mn&o,n
n      u| l            ^l
 co/usr/local/clang/include/absl/base/nullability.hr:d257In file included from ):s2/s2region_coverer.cc 23:{:18
 :
      note: In file included from | expanded from macro 'absl_nullable'../src/s2/s2region_coverer.h                                                      ^
:
31  :
257In file included from /usr/local/clang/include/absl/base/nullability.h | ../src/s2/s2cell.h:#:241d28:e:
22fIn file included from :i../src/s2/s1chord_angle.h n:enote: 29 expanded from macro 'absl_nonnull':
a
In file included from b../src/s2/s1angle.h  s:241l28 | _:
#nIn file included from du../src/s2/s2point.hel:fl27ia:
nbIn file included from el../src/s2/s2coder.h e:a 23b_:
sNIn file included from lu/usr/local/clang/include/absl/status/status.h_l:nl67oa:
nbIn file included from nlu/usr/local/clang/include/absl/status/internal/status_internal.hel:
l29       :
| _/usr/local/clang/include/absl/strings/cord.h                      ^N:
o641n:n33u:l lwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| In file included from 
                     ^s2/s2region.cc
:18  :
641In file included from  | ../src/s2/s2region.h : 24 :
 In file included from u../src/s2/s1angle.hs:i28n:
gIn file included from  ../src/s2/s2point.hp:o25i:
nIn file included from t../src/s2/util/coding/coder.he:r36 :
=In file included from  ../src/s2/base/casts.hc:o36n:
sIn file included from t../src/s2/base/logging.h :c21h:
aIn file included from r/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n277u:l50l:; 
warning:       type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 
                                ^
  /usr/local/clang/include/absl/base/nullability.h277: | 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n ncuolnls
t       | v                     ^o
id* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from In file included from ../src/s2/s2region_coverer.hs2/s2region.cc::3118:
:
In file included from In file included from ../src/s2/s2cell.h../src/s2/s2region.h::2824:
:
In file included from In file included from ../src/s2/s1chord_angle.h../src/s2/s1angle.h::2928:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2point.h::2825:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/util/coding/coder.h::2736:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/base/casts.h::2336:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/base/logging.h::6721:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/check.h::2937:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_impl.h::65521::
39:/usr/local/clang/include/absl/log/internal/check_op.h :278warning: :13type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
655 |      278  | ecxopnlsitc ivto iCdh*a raIbtselr_antuolrl(acbolnes to pCeorradt*o ra<b<s(ls_tndo:n:nousltlr ecaomr&d,) 
s      t| d                                      ^:
:nu/usr/local/clang/include/absl/base/nullability.hl:l241p:t22r:_ tnote: )expanded from macro 'absl_nonnull';

      |               ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static CIn file included from os2/s2region.ccr:d18 :
AIn file included from d../src/s2/s2region.hv:a24n:
cIn file included from e../src/s2/s1angle.hA:n28d:
RIn file included from e../src/s2/s2point.ha:d25(:
CIn file included from h../src/s2/util/coding/coder.ha:r36I:
tIn file included from e../src/s2/base/casts.hr:a36t:
oIn file included from r../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l/usr/local/clang/include/absl/log/internal/check_op.h :i292t:,13 :s iwarning: ztype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
_t   n292_ | bcyotnesst) ;c
h      a| r                                           ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241o | p#edreaftionre< <a(bsstld_:n:obnansuilcl_ o_sNtornenauml<lc
h      a| r                     ^,
 Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2region_coverer.cc | :#18d:
eIn file included from f../src/s2/s2region_coverer.hi:n31e:
 In file included from a../src/s2/s2cell.hb:s28l:
_In file included from n../src/s2/s1chord_angle.ho:n29n:
uIn file included from l../src/s2/s1angle.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2region.cc674: | 18 :
 In file included from s../src/s2/s2region.ht:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2region_union.ccl:l18 :
_In file included from N../src/s2/s2region_union.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvancIn file included from es2/s2region.ccA:n18d:
RIn file included from e../src/s2/s2region.ha:d24(:
CIn file included from h../src/s2/s1angle.ha:r28I:
tIn file included from e../src/s2/s2point.hr:a25t:
oIn file included from r../src/s2/util/coding/coder.h*: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hi:t37,:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                               ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:295/usr/local/clang/include/absl/base/nullability.h::20241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241295 |  | #cdoenfsitn es iagbnseld_ ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^o
perator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.ha:241:22: tnote: iIn file included from expanded from macro 'absl_nonnull'cs2/s2region_union.cc
 :v18  o:
241iIn file included from  | d../src/s2/s2region_union.h# :dA28ed:
fvIn file included from ia../src/s2/s2point.hnn:ec27 e:
a(In file included from bC../src/s2/s2coder.hsh:la23_r:
nIIn file included from ot/usr/local/clang/include/absl/status/status.hne:nr67ua:
ltIn file included from lo/usr/local/clang/include/absl/status/internal/status_internal.h r:_*29N :
oa/usr/local/clang/include/absl/strings/cord.hnb:ns1672ul:l_41ln:
o       n| warning: n                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u

ll i t1672, |  isnilzien_et  vno_ibdy tCeIn file included from oss2/s2region.ccr):d;18:
:
:      AIn file included from d| ../src/s2/s2region.hv:a                                    ^24n
:
cIn file included from e../src/s2/s1angle.h(:C28h:
/usr/local/clang/include/absl/base/nullability.haIn file included from r:../src/s2/s2point.hI241:t:e2522r:
:aIn file included from t ../src/s2/util/coding/coder.ho:rnote: 36*expanded from macro 'absl_nonnull':
 
In file included from a../src/s2/base/casts.hb:s36  l:
_241In file included from n | ../src/s2/base/logging.ho#:nd21ne:
ufIn file included from li/usr/local/clang/include/absl/log/check.hln: e37i :
taIn file included from ,b/usr/local/clang/include/absl/log/internal/check_impl.h s:sl21i_:
zn/usr/local/clang/include/absl/log/internal/check_op.heo:_n296tn: u63nl:_l b warning: y_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]tN
eosn)n   u296{l | 
l       
 |                                                ^|  
                     ^ 
 /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N ocnonnusltl 
s      i| g                     ^n
ed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2region_coverer.cc
:      18| :
                     ^In file included from 
../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2region.cc::73018::
36In file included from :../src/s2/s2region.h :24warning: :
In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:  25730:
 | In file included from  ../src/s2/util/coding/coder.h : 36 :
eIn file included from x../src/s2/base/casts.hp:l36i:
cIn file included from i../src/s2/base/logging.ht: 21C:
hIn file included from a/usr/local/clang/include/absl/log/check.hr:R37a:
nIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.he:(21c:
o/usr/local/clang/include/absl/log/internal/check_op.hn:s298t: 22C:o rwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l298_ | ncoonnnsutl lu ncsoirgdn)e d:  cchoard_r(*c oarbds)l _{n}o
n      n| u                                   ^l
l o/usr/local/clang/include/absl/base/nullability.hp:e241r:a22t:o rnote: <expanded from macro 'absl_nonnull'<
(s  t241d | :#:dbeafsiince_ oasbtsrle_anmo<ncnhualrl,  _TNroanintusl>l&
,      
|                            ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2region_coverer.cc_:N18o:
nIn file included from n../src/s2/s2region_coverer.hu:l31l:

In file included from       ../src/s2/s2cell.h| :                     ^28
:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2region.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h18::
29In file included from :
../src/s2/s2region.h:/usr/local/clang/include/absl/strings/cord.h24::
736In file included from :../src/s2/s1angle.h17::28 :
In file included from warning: ../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
25:
In file included from ../src/s2/util/coding/coder.h  :73636 | :
 In file included from  ../src/s2/base/casts.h : 36c:
oIn file included from n../src/s2/base/logging.hs:t21 :
CIn file included from o/usr/local/clang/include/absl/log/check.hr:d37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:o299n:n67u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ord  _299; | 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n ncuolnls
t       | u                     ^n
signed char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2region.cc      :| 18                     ^:

In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECKIn file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 | :
 In file included from  ../src/s2/s2coder.he:x23t:
eIn file included from r/usr/local/clang/include/absl/status/status.hn: 67t:
eIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.hp:l29a:
te/usr/local/clang/include/absl/strings/cord.h :c984o:n36s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar* ab  s984l | _ n o n nvuolild  MAapkpeeCnhdeTcrkeOepTSotTrrieneg((C o r d\R
e      p| *                              ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   t241r | e#ed,e fMienteh oadbIsdle_nntoinfniuelrl  m_eNtohnondu)l;l

            | |                                    ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2region.cc241: | 18#:
dIn file included from e../src/s2/s2region.hf:i24n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o25n:
nIn file included from u../src/s2/util/coding/coder.hl:l36 :
_In file included from N../src/s2/base/casts.ho:n36n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, In file included from xs2/s2region_coverer.cc,: 18c:
oIn file included from n../src/s2/s2region_coverer.hs:t31 :
cIn file included from h../src/s2/s2cell.ha:r28*:
 In file included from a../src/s2/s1chord_angle.hb:s29l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:)27
:
      In file included from | ../src/s2/s2coder.h                        ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/cord.h:985  :24130 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   a985b | s l _ n ovnoniudl lA p_pNeonndnTurlele
(      C| o                     ^r
dRep* absl_nonnull tree, MetIn file included from hs2/s2region.cco:d18I:
dIn file included from e../src/s2/s2region.hn:t24i:
fIn file included from i../src/s2/s1angle.he:r28 :
mIn file included from e../src/s2/s2point.ht:h25o:
dIn file included from )../src/s2/util/coding/coder.h;:
36      :
| In file included from                              ^../src/s2/base/casts.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21241:
 | /usr/local/clang/include/absl/log/internal/check_op.h#:d453e:f1i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _453n | oAnBnSuLl_lL O_GN_oInNnTuElRlN
A      L| _                     ^D
EFINE_MAKE_CHECK_OP_In file included from Ss2/s2region_coverer.ccT:R18I:
NIn file included from G../src/s2/s2region_coverer.h_:E31X:
TIn file included from E../src/s2/s2cell.hR:N28(:
uIn file included from i../src/s2/s1chord_angle.hn:t296:
4In file included from _../src/s2/s1angle.ht:)28;:

In file included from       ../src/s2/s2point.h| :^27
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_op.h::23449:
:In file included from 31/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  /usr/local/clang/include/absl/strings/cord.h449: | 986 : 40e:x twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
n t  e986m | p l a t ev ociodn sPtr ecpheanrd*T raebesTlo_Inonnlniunleld (MCaokredCRheepc*k OapbSstlr_innogn(n u l l\ 
t      r| e                              ^e
,
/usr/local/clang/include/absl/base/nullability.h      :| 241                                       ^:
22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from In file included from ../src/s2/util/coding/coder.hs2/s2region_coverer.cc::3618:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2region_coverer.h::3631:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2cell.h::2128:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s1chord_angle.h::3729:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s1angle.h::2128:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h453::271:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/check_op.h::67450:
:In file included from 25/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
988:37  :450  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      x988, |   x ,   cvoonisdt  Pcrheapre*n daTbrsele_TnooTnrneuel(lC)o
r      d| R                        ^e
p*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #tdreefei,n eM eatbhsold_Indoennntuilfli e_rN omnentuhlold
)      ;| 
                     ^      
|                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2region.ccn:o18n:
nIn file included from u../src/s2/s2region.hl:l24 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
25      :
| In file included from                      ^../src/s2/util/coding/coder.h
:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:In file included from 454s2/s2region_coverer.cc::118::
 In file included from ../src/s2/s2region_coverer.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
In file included from ../src/s2/s2cell.h:  28454:
 | In file included from A../src/s2/s1chord_angle.hB:S29L:
_In file included from L../src/s2/s1angle.hO:G28_:
IIn file included from N../src/s2/s2point.hT:E27R:
NIn file included from A../src/s2/s2coder.hL:_23D:
EIn file included from F/usr/local/clang/include/absl/status/status.hI:N67E:
_In file included from M/usr/local/clang/include/absl/status/internal/status_internal.hA:K29E:
_/usr/local/clang/include/absl/strings/cord.hC:H989E:C31K:_ Owarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
STRI  N989G | _ E X T EvRoNi(df lPoraetp)e;n
d      T| r^e
e(/usr/local/clang/include/absl/log/internal/check_op.hC:o449r:d31R:e pnote: *expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
ab  s449l | _ n oenxntuelrln  ttreemep,l aMteet hcoodnIsdte ncthiafri*e ra bmselt_hnoodn)n;u
l      l|                                ^M
ak/usr/local/clang/include/absl/base/nullability.he:C241h:e22c:k Onote: pexpanded from macro 'absl_nonnull'S
tr  i241n | g#(d e f i\n
e       | a                              ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:nnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::C22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EIn file included from Xs2/s2region_term_indexer.ccT:E80R:
N(/usr/local/clang/include/absl/strings/ascii.hc:h79a:r28):; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]^

/usr/local/clang/include/absl/log/internal/check_op.h:449:   3179: |  vnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'i
d A  s449c | i i SetxrtTeorLno wteerm(pclhaatre*  caobnsslt_ ncohnanru*l la bdsslt_,n ocnonnusltl  cMhaakre*C haebcsklO_pnSutlrlianbgl(e   s r\c
,      
|                                     ^| 
                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2region_term_indexer.cc../src/s2/s2point.h::8025:
:
/usr/local/clang/include/absl/strings/ascii.hIn file included from :../src/s2/util/coding/coder.h79::3658:
:In file included from  ../src/s2/base/casts.h:warning: 36type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:21:
   In file included from 79/usr/local/clang/include/absl/log/check.h | :v37o:
iIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h :A21s:
c/usr/local/clang/include/absl/log/internal/check_op.hi:i456S:t1r:T owarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
w/usr/local/clang/include/absl/log/internal/check_op.he:r450(:c25h:a rnote: *expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
ab  s450l | _ n o n n u lxl,  dxs,t ,c ocnosnts tc hcahra*r *a basbls_ln_onnunlullalb)l
e       | s                        ^r
c,/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                         ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'257
:23:   241 | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en oanbnsull_ln u_lNloanbnluel l_
N      u| l                     ^l
able
      |                       ^
In file included from s2/s2region.cc:18:
In file included from In file included from s2/s2region_term_indexer.cc../src/s2/s2region.h::8024:
:
In file included from /usr/local/clang/include/absl/strings/ascii.h../src/s2/s1angle.h::8228::
28In file included from :../src/s2/s2point.h :25warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/util/coding/coder.h:36:
In file included from    ../src/s2/base/casts.h82: | 36v:
oIn file included from i../src/s2/base/logging.hd: 21A:
sIn file included from c/usr/local/clang/include/absl/log/check.hi:i37S:
tIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hT:21o:
U/usr/local/clang/include/absl/log/internal/check_op.hp:p457e:r1(:c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* a  b457s | lA_BnSoLn_nLuOlGl_ IdNsTtE,R NcAoLn_sDtE FcIhNaEr_*M AaKbEs_lC_HnEuClKl_aObPl_eS TsRrIcN,G
_      E| X                           ^T
ER/usr/local/clang/include/absl/base/nullability.hN:(241u:n22s:i gnote: nexpanded from macro 'absl_nonnull'e
d   c241h | a#rd)e;f
i      n| e^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l449_:n31o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
l _  N449o | n n uelxlt
e      r| n                     ^ 
template In file included from cs2/s2region_term_indexer.cco:n80s:
t/usr/local/clang/include/absl/strings/ascii.h :c82h:a58r:*  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_   n82o | nvnouildl  AMsackieiCShtercTkoOUppSpterri(ncgh(a r *  \a
b      s| l                              ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  dnote: sexpanded from macro 'absl_nonnull't
,   c241o | n#sdte fcihnaer *a basbls_ln_onnunlullalb l_eN osnrncu,l
l      
|                                                                ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2region.cc
:18:
  In file included from 257../src/s2/s2region.h | :#24d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.hu:l36l:
aIn file included from b../src/s2/base/casts.hl:e36 :
_In file included from N../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                      ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:ordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18In file included from :
s2/s2region_term_indexer.ccIn file included from :../src/s2/s2region_coverer.h80::
31:
/usr/local/clang/include/absl/strings/ascii.hIn file included from :../src/s2/s2cell.h188::2835:
:In file included from  ../src/s2/s1chord_angle.h:warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
  In file included from 188../src/s2/s2point.h | :v27o:
iIn file included from d../src/s2/s2coder.h :A23s:
cIn file included from i/usr/local/clang/include/absl/status/status.hi:S67t:
rIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.ho:L29o:
w/usr/local/clang/include/absl/strings/cord.he:r1116(:s37t:d :warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
trin g1116* |   a bcsoln_snto ncnrucl_li nst)e;r
n      a| l                                  ^:
:C/usr/local/clang/include/absl/base/nullability.hr:c241C:o22r:d Snote: texpanded from macro 'absl_nonnull'a
te  *241  | a#bdself_innuel laabbslle_ nMoanynbuelGle t_CNrocnCnourldlS
t      a| t                     ^e
() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:80:
/usr/local/clang/include/absl/strings/ascii.h:219:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  219 | void AsciiStrToUpper(std::string* absl_nonnull s);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRepIn file included from *s2/s2region_term_indexer.cc :a80b:
sl/usr/local/clang/include/absl/strings/ascii.h_:n250o:n54n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Clo  n250e | (i
n      l| i             ^n
e void StripLeadingAsciiWhitespace(std::str/usr/local/clang/include/absl/base/nullability.hi:n241g:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_nonnu  l241l |  #sdterf)i n{e
       a| b                                                     ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LIn file included from Os2/s2region_term_indexer.ccG:_80I:
NT/usr/local/clang/include/absl/strings/ascii.hE:R264N:A55L:_ Dwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
INE_  M264A | KiEn_lCiHnEeC Kv_oOiPd_ SSTtRrIiNpGT_rEaXiTlEiRnNg(AcsocnisitW hcihtaers*p aacbes(ls_tndo:n:nsutlrli)n;g
*       | a^b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n450o:n25n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
st  r450) |   { 
        |                                                        ^ 
x, x, c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb)s
l      _| n                        ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonn367u warninglsl generated
.
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString( In file included from  s2/s2region_coverer.cc :\18
:
      In file included from | ../src/s2/s2region_coverer.h                              ^:
31:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2cell.h241::2822:
:In file included from  ../src/s2/s1chord_angle.h:note: 29expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 _/usr/local/clang/include/absl/strings/cord.hN:o1140n:n49u:l lwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
 1140 | In file included from  s2/s2region.cc : 18 :
 In file included from  ../src/s2/s2region.h : 24 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.hC:o21r:
dIn file included from R/usr/local/clang/include/absl/log/check.he:p37E:
xIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.he:r21n:
a/usr/local/clang/include/absl/log/internal/check_op.hl:*464 :a26b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
on  n464u | l l   r ecpo)n;s
t       | u                                                ^n
sig/usr/local/clang/include/absl/base/nullability.hn:e241d: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la)b;s
l      _| n                         ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _NonnullIn file included from 
s2/s2region_coverer.cc      :| 18                     ^:

In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29In file included from :
s2/s2region.ccIn file included from :../src/s2/s1angle.h18::
28In file included from :
../src/s2/s2region.hIn file included from :../src/s2/s2point.h24::
27In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2coder.h28::
23In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h25::
67In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h36::
29In file included from :
../src/s2/base/casts.h:/usr/local/clang/include/absl/strings/cord.h36::
1146In file included from :../src/s2/base/logging.h10::21 :
In file included from warning: /usr/local/clang/include/absl/log/check.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21 :
1146 | /usr/local/clang/include/absl/log/internal/check_op.hC:o464r:d26R:e pwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   N241e | w#Edxetfeirnnea laRbespl(_anbosnln:u:lslt r_iNnogn_nvuilelw
       d| a                     ^t
a,
      |          ^
In file included from s2/s2region.cc:/usr/local/clang/include/absl/base/nullability.h18::
241In file included from :../src/s2/s2region.h22::24 :
In file included from note: ../src/s2/s1angle.hexpanded from macro 'absl_nonnull':
28:
In file included from   ../src/s2/s2point.h241: | 25#:
dIn file included from e../src/s2/util/coding/coder.hf:i36n:
eIn file included from  ../src/s2/base/casts.ha:b36s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l463
:      1| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2region_coverer.cc:  18241:
 | In file included from #../src/s2/s2region_coverer.hd:e31f:
iIn file included from n../src/s2/s2cell.he: 28a:
bIn file included from s../src/s2/s1chord_angle.hl:_29n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.huIn file included from s2/s2region_term_indexer.cc:80:
/usr/local/clang/include/absl/strings/ascii.h:277:47: :warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^277
 | inline void StripAsciiWhitespace(std::string* absl_In file included from ns2/s2region.cco:n18n:
uIn file included from l../src/s2/s2region.hl: 24s:
tIn file included from r../src/s2/s1angle.h): 28{:

In file included from       ../src/s2/s2point.h| :                                              ^25
:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/base/casts.h::24136::
22In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/check.h:37  :
241In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
fi/usr/local/clang/include/absl/log/internal/check_op.hn:e465 :a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnul  l465  | _ANBoSnLn_uLlOlG
_      I| N                     ^T
ERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 | In file included from  s2/s2region_term_indexer.cc :e80x:
t/usr/local/clang/include/absl/strings/ascii.he:r283n: 46t:e mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ate   283c | ovnositd  cRheamro*v eaEbxstlr_anAosncniuilWlh iMtaekesCphaeccek(OsptSdt:r:isntgr(i n g *\ 
a      b| s                              ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  snote: texpanded from macro 'absl_nonnull'r
);  
241       | | #                                             ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _In file included from Ns2/s2region.cco:n18n:
uIn file included from l../src/s2/s2region.hl:
24      :
| In file included from                      ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* abIn file included from ss2/s2region_term_indexer.ccl:_81n:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hn:u116l:
lIn file included from )/usr/local/clang/include/absl/strings/internal/stringify_sink.h;:
23      :
| ^/usr/local/clang/include/absl/strings/numbers.h
:66:/usr/local/clang/include/absl/log/internal/check_op.h41::450 :25warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
   66   | 450  |              x ,   x ,   c o n s t   c h a r *   a b s l _innotn_ntuylple)*
       a| b                        ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'o
ut  )241; | 
#      d| e                                        ^f
ine/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :s2/s2region.cc77::1861:
:In file included from  ../src/s2/s2region.h:warning: 24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
   In file included from 77../src/s2/s2point.h | :[25[:
nIn file included from o../src/s2/util/coding/coder.hd:i36s:
cIn file included from a../src/s2/base/casts.hr:d36]:
]In file included from  ../src/s2/base/logging.hb:o21o:
lIn file included from  /usr/local/clang/include/absl/log/check.hS:i37m:
pIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.he:A21t:
o/usr/local/clang/include/absl/log/internal/check_op.hf:(502a:b1s:l :warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
tri  n502g | _AvBiSeLw_ LsOtGr_,I NfTlEoRaNtA*L _aCbHsElC_Kn_oOnPn_uIlMlP Lo(uCth)e;c
k      _| E                                                            ^Q
, /usr/local/clang/include/absl/base/nullability.h=:=241):
22      :|  ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/log/internal/check_op.h  :241488 | :#32d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
e a  b488s | l _ nionnlniunlel  c_oNnosntneuxlplr
       c| o                     ^n
st char* absl_nullable name#In file included from #s2/s2region_term_indexer.ccI:m81p:
lIn file included from (/usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 88 : 62 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 \
         | 88                               ^ | 
[[/usr/local/clang/include/absl/base/nullability.hn:o257d:i23s:c anote: rexpanded from macro 'absl_nullable'd
]]   257b | o#odle fSiinmep laebAstlo_dn(ualblsalb:l:es t_rNiunlgl_avbileew
       s| t                      ^r
, double* absIn file included from ls2/s2region.cc_:n18o:
nIn file included from n../src/s2/s2region.hu:l24l:
 In file included from o../src/s2/s1angle.hu:t28):
;In file included from 
../src/s2/s2point.h      :| 25                                                             ^:

In file included from ../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/base/nullability.h36::
241In file included from :../src/s2/base/casts.h22::36 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :a502b:s1l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l489 :_47N:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
ll
        | 489                     ^ | 
      const T1& v1In file included from ,s2/s2region_term_indexer.cc :c81o:
nIn file included from s/usr/local/clang/include/absl/strings/str_cat.ht: 116T:
2In file included from &/usr/local/clang/include/absl/strings/internal/stringify_sink.h :v232:
,/usr/local/clang/include/absl/strings/numbers.h :c98o:n60s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*    98a | b[s[ln_ondoinsncualrld ]e]x pbrotoelx tS)i m{p l e A t o\b
(      a| b                                              ^s
l:/usr/local/clang/include/absl/base/nullability.h::s241t:r22i:n gnote: _expanded from macro 'absl_nonnull'v
ie  w241  | s#tdre,f ibnoeo la*b salb_snlo_nnnounlnlu l_lN oonuntu)l;l

            | |                                                            ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonn/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shape_measures.cc -o s2/s2shape_measures.o
ull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from In file included from ../src/s2/s2region_union.hs2/s2region_coverer.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2region_coverer.h::2731:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2cell.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s1chord_angle.h::6729:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s1angle.h::14928::
13In file included from :../src/s2/s2point.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h149: | 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
c/usr/local/clang/include/absl/strings/cord.hh:a1183r:*47 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_non n1183u | l l   M a k e C   h e c k F a i l S t r i n g ( 
        |              ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :C onote: rexpanded from macro 'absl_nonnull'd
Re  p241* |  #adbesfli_nneu lalbasbll_en ornenpu)l
l       | _                                              ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l257l:
23      :|                       ^note: 
expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2region_union.ccn:e18 :
aIn file included from b../src/s2/s2region_union.hs:l28_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23_:
NIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
b/usr/local/clang/include/absl/status/internal/status_internal.hl:e150
:      25| :                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull statnus, ncuolnls
t       | c                     ^h
ar* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2region_term_indexer.ccb:s81l:
_In file included from n/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl: 23_:
N/usr/local/clang/include/absl/strings/numbers.ho:n112n:u44l:l 
warning:       | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  112 |                           In file included from  s2/s2region_union.cc : 18 :
 In file included from  ../src/s2/s2region_union.h :i28n:
tIn file included from _../src/s2/s2point.ht:y27p:
eIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
n/usr/local/clang/include/absl/status/internal/status_internal.hn:u150l:l58 :o uwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
      |                                              ^150
 |   /usr/local/clang/include/absl/base/nullability.h : 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'a
bs  l241: | :#Sdteaftiunse*  aabbssll__nnoonnnnuullll  _sNtoantnuusl,l 
c      o| n                     ^s
t char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2region_term_indexer.cc:note: 81expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e116 :a55b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l116l |   _ N o n n u l l 
        |                       ^ 
                           absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2region_coverer.ccnote: :expanded from macro 'absl_nonnull'18
:
In file included from   ../src/s2/s2region_coverer.h241: | 31#:
dIn file included from e../src/s2/s2cell.hf:i28n:
eIn file included from  ../src/s2/s1chord_angle.ha:b29s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline voidIn file included from  s2/s2region_term_indexer.ccC:o81r:
dIn file included from :/usr/local/clang/include/absl/strings/str_cat.h::I116n:
lIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:e23R:
e/usr/local/clang/include/absl/strings/numbers.hp::118::S56w:a pwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ord  :118: | I n l i n e R e p *   a b s l _ n o n n u l l   r h s )   { 
        |                                                     ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 :a22b:s lnote: :expanded from macro 'absl_nonnull':
ui  n241t | 1#2d8e*f ianbes la_bnsoln_nnuolnln uolult )_;N
o      n| n                                                       ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inlineIn file included from  s2/s2region_term_indexer.ccc:o81n:
sIn file included from t/usr/local/clang/include/absl/strings/str_cat.h :c116h:
aIn file included from r/usr/local/clang/include/absl/strings/internal/stringify_sink.h*: 23a:
b/usr/local/clang/include/absl/strings/numbers.hs:l152_:n37u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le   C152o | rvdo:i:dI nPluitnTewRoeDpi:g:idtast(au(i)n tc3o2n_stt  i{,
       c| h                   ^a
r*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #bdueff)i;n
e       | a                                    ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 _  N241u | l#ldaebflien
e       | a                      ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from In file included from s2/s2region_term_indexer.cc../src/s2/s1angle.h::8128:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2point.h::11625:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/util/coding/coder.h::2336:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/base/casts.h::15636::
55In file included from :../src/s2/base/logging.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h156: | 21b:
oo/usr/local/clang/include/absl/log/internal/check_op.hl: 502s:a1f:e _warning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
rto/usr/local/clang/include/absl/log/internal/check_op.h8:_497b:a32s:e (note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl::s  t497r | i n gi_nvliienwe  tceoxnts,t eixnptr8 _cto*n satb sclh_anro*n naublsll _vnaullulea,b
l      e|                                                        ^n
am/usr/local/clang/include/absl/base/nullability.he:#241#:I22m:p lnote: (expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u                               ^l
l _N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
      note: | expanded from macro 'absl_nullable'                     ^

  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2region_term_indexer.cc21::
81/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 502/usr/local/clang/include/absl/strings/str_cat.h::1116::
 In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/log/internal/check_op.h::158498::5735::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

    158498 |  | b o o l   s aifnet_ svt1r,t oi1n6t_ bva2s,e (caobnsslt: :cshtarri*n ga_bvsile_wn otnenxutl,l  ienxtp1r6t_etx*t )a b{s l _ n o n n u l l   v a l u e , 
\      
|                                                               ^| 
                                  ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2region_union.ccl:
18      :
| In file included from                      ^../src/s2/s2region_union.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   sIn file included from ts2/s2region_term_indexer.cca:t81i:
cIn file included from  /usr/local/clang/include/absl/strings/str_cat.hs:t116a:
tIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hs:_23i:
n/usr/local/clang/include/absl/strings/numbers.ht:e172r:n59a:l :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
tatu  s172R | ebpo*o la bssalf_en_osntnrutlolu 6P4r_ebpaasree(TaobMsold:i:fsyt(r
i      n| g                                     ^_
vie/usr/local/clang/include/absl/base/nullability.hw: 241t:e22x:t ,note:  expanded from macro 'absl_nonnull'u
in  t2416 | 4#_dte*f ianbes la_bnsoln_nnuolnln uvlall u_eN,o
n      n| u                                                          ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from In file included from s2/s2region_term_indexer.cc../src/s2/s2coder.hs2/s2region_coverer.cc:::812318:
:
:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from /usr/local/clang/include/absl/strings/str_cat.h:../src/s2/s2region_coverer.h:732:116:31:
29:
In file included from :In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h ../src/s2/s2cell.h::warning: 2328type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:

/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s1chord_angle.h175::  2941732:
: | In file included from   ../src/s2/s1angle.hwarning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s28
t:
aIn file included from t../src/s2/s2point.h  i:175c27 |  :
 cIn file included from  o../src/s2/s2coder.h n: s23 t:
  In file included from  s/usr/local/clang/include/absl/status/status.h t: d67 ::
 :In file included from  s/usr/local/clang/include/absl/status/internal/status_internal.h t: r29 i:
 n /usr/local/clang/include/absl/strings/cord.h g: *1234  : a20 b: s  lwarning:  _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]an
bosnln:u :l1234ul | i inEntml1pi2tn8ye*S  tcarobinsnslgt_( n)co;hn
a      r| *                            ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lnexpanded from macro 'absl_nonnull'l
u lCl  o 241rv | da#:ld:ueIefn,il niienn etaR bebspal:s_:ena)os;n_
nc      uh| la                                        ^lr
 s_(N/usr/local/clang/include/absl/base/nullability.h)o: n241cn:ou22nl:sl t
note:        expanded from macro 'absl_nonnull'{| 

                     ^      
  | 241                   ^ | 
#de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
In file included from n      s2/s2region_union.cco| :n                     ^18n
:
uIn file included from l../src/s2/s2region_union.hl: 28_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^/usr/local/clang/include/absl/status/status.h
:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::In file included from ss2/s2region_term_indexer.cct:r81i:
nIn file included from g/usr/local/clang/include/absl/strings/str_cat.h*: 116a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:_23n:
o/usr/local/clang/include/absl/strings/numbers.hn:n182u:l7l:  Mwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
edFIn file included from r  s2/s2region_coverer.cco182:m | 18Sct:
hrIn file included from ai../src/s2/s2region_coverer.hrn:*g31 (:
a)In file included from b;../src/s2/s2cell.hs
:l      28_| :
n                            ^In file included from o
../src/s2/s1chord_angle.hn/usr/local/clang/include/absl/base/nullability.h:n:29u241:
l:In file included from l22../src/s2/s1angle.h ::R 28o:
note: uIn file included from expanded from macro 'absl_nonnull'n../src/s2/s2point.h
d:T27  r:
241iIn file included from  | p../src/s2/s2coder.h#D:do23eu:
fbIn file included from li/usr/local/clang/include/absl/status/status.hen:Te67o :
BaIn file included from ub/usr/local/clang/include/absl/status/internal/status_internal.hfs:fl29e_:
rn/usr/local/clang/include/absl/strings/cord.ho(:nd1239no:uu38lb:ll  ewarning: _ type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Nd
o,n ncuh la1239lr | 
*      i | na                     ^lb
isnle_ naobnsnlu:l:lc obrudf_fienrt)e;r
n      a| l      ^:
:C/usr/local/clang/include/absl/base/nullability.ho:r241d:R22e:p *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  Caobrsdl:_:nIonnlniunlelR e_pN:o:nansu_ltlr
e      e| (                     ^)

      |                                      ^
In file included from In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2region_union.ccs2/s2region_term_indexer.cc:::2411881::
:
22In file included from In file included from :../src/s2/s2region_union.h/usr/local/clang/include/absl/strings/str_cat.h ::28note: 116:
expanded from macro 'absl_nonnull':
In file included from 
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::  2723241:
:
 | In file included from /usr/local/clang/include/absl/strings/numbers.h#../src/s2/s2coder.h:d:182e23:f:
60i:/usr/local/clang/include/absl/status/status.hn :ewarning: 751 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:a
61b:s   lwarning: 182_ | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nc
ohnanr  u*751l  | la  b _ssNlto_anntnoiuncln luu
li      ln|  t                     ^Rp
oturn_dtT rPiopiDnotuebrlTeoTRoeBpu(fsfteart(udso_uibnltee rdn,a lc:h:aSrt*a taubssRle_pn*o nanbusllIn file included from l_s2/s2region_coverer.cc n:bo18un:
fnIn file included from fu../src/s2/s2region_coverer.hel:rl31) :
;rIn file included from 
)../src/s2/s2cell.h      ;:| 
28                                                           ^      :

| In file included from                                                             ^../src/s2/s1chord_angle.h/usr/local/clang/include/absl/base/nullability.h
::29241:
/usr/local/clang/include/absl/base/nullability.h:In file included from :22../src/s2/s1angle.h241::: 2822note: :
:expanded from macro 'absl_nonnull'In file included from  
../src/s2/s2point.hnote: :  expanded from macro 'absl_nonnull'27241
:
 | In file included from #  ../src/s2/s2coder.hd241:e | 23f#:
idIn file included from ne/usr/local/clang/include/absl/status/status.hef: i67an:
beIn file included from s /usr/local/clang/include/absl/status/internal/status_internal.hla:_b29ns:
ol/usr/local/clang/include/absl/strings/cord.hn_:nn1245uo:ln38ln: u _lwarning: Nltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o 
n_nNuoln ln1245
u |       li| ln                     ^
l
      i| n                     ^e
 absl::cordIn file included from _s2/s2region_term_indexer.cci:n81t:
eIn file included from r/usr/local/clang/include/absl/strings/str_cat.hn:a116l:
:In file included from In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.hs2/s2region_union.ccC::o2318r:
:
dIn file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2region_union.h:R:183e28:p:
7*In file included from : ../src/s2/s2point.h a:warning: b27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s:

lIn file included from _../src/s2/s2coder.hn:  u23183l:
 | l/usr/local/clang/include/absl/status/status.hca:hb752al:re44* : C aowarning: brtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sd
l:_:nI  on752nl | ni un leslRt eaRpto:iu:cnt drcTeoreni(sp)tF
 l      so| ta                                     ^at
tTuosB/usr/local/clang/include/absl/base/nullability.h_u:fi257fn:et23re:(r fnnote: laexpanded from macro 'absl_nullable'ol
a:t:   S257ft | ,a# tdcuehsfaRiren*pe * a ababsbslsl_l_n_nonunolnnlunalublll leb  uR_feNfpueTlrol)Pa;ob
il      ne| t
      ^e      
r| (/usr/local/clang/include/absl/base/nullability.h                      ^
:
      241| :                                           ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFlIn file included from os2/s2region_coverer.cca:t18T:
oIn file included from B../src/s2/s2region_coverer.hu:f31f:
eIn file included from r../src/s2/s2cell.h(:f28l:
oIn file included from a../src/s2/s1chord_angle.ht: 29f:
,In file included from  ../src/s2/s1angle.hc:h28a:
rIn file included from *../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from b/usr/local/clang/include/absl/status/internal/status_internal.hu:f29f:
e/usr/local/clang/include/absl/strings/cord.hr:)1258;:
36      :|                                                           ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:  1258 | note: iexpanded from macro 'absl_nonnull'n
li  n241e |  #cdoerfdi_nien taebrsnla_ln:o:nCnourldlR e_pNFolnantu*l la
b      s| l                     ^_
nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2region_term_indexer.ccexpanded from macro 'absl_nonnull':
81:
In file included from   /usr/local/clang/include/absl/strings/str_cat.h241: | 116#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hf:i23n:
e/usr/local/clang/include/absl/strings/numbers.h :a191b:s42l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l191  | _sNioznen_utl lS
i      x| D                     ^i
gitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t iIn file included from ,s2/s2region_coverer.cc :c18h:
aIn file included from r../src/s2/s2region_coverer.h*: 31a:
bIn file included from s../src/s2/s2cell.hl:_28n:
oIn file included from n../src/s2/s1chord_angle.h:29:
In file included from n../src/s2/s1angle.hu:l28l:
 In file included from b../src/s2/s2point.hu:f27f:
eIn file included from r../src/s2/s2coder.h):
23      :
| In file included from       ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
: /usr/local/clang/include/absl/strings/cord.h:note: 1268expanded from macro 'absl_nonnull':
51:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi n1268e |  ianblsiln_en ovnoniudl lC o_rNdo:n:nIunllli
n      e| R                     ^e
p::EmplaIn file included from cs2/s2region_term_indexer.cce:T81r:
eIn file included from e/usr/local/clang/include/absl/strings/str_cat.h(:C116ordRe:
p* In file included from a/usr/local/clang/include/absl/strings/internal/stringify_sink.hb:23s:
In file included from ls2/s2region.cc/usr/local/clang/include/absl/strings/numbers.h_::n18198o:
:nIn file included from 53n../src/s2/s2region.h:u: l24warning: l:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] In file included from 
r../src/s2/s1angle.he:p28,:
In file included from 
  ../src/s2/s2point.h      198:|  | 25                                                  ^c:

hIn file included from a../src/s2/util/coding/coder.hr:/usr/local/clang/include/absl/base/nullability.h*36: :
241aIn file included from b:../src/s2/base/casts.hs22:l:36_ :
nnote: In file included from oexpanded from macro 'absl_nonnull'../src/s2/base/logging.hn
:n21u:
  lIn file included from l241/usr/local/clang/include/absl/log/check.h  | :F#37ad:
seIn file included from tf/usr/local/clang/include/absl/log/internal/check_impl.hIi:nn21te:
T o/usr/local/clang/include/absl/log/internal/check_op.haB:bu503sf:lf1_e:nr o(warning: nitype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nn
utl3l2   _503_t | N AoiBn,Sn Luc_lhLlaO
rG      *_|  I                     ^aN
bTsElR_NnAoLn_nCuHlElC Kb_uOfPf_eIrM)P
L      (| C                                                    ^h
eck/usr/local/clang/include/absl/base/nullability.h_:N241E:,22 :! =note: )expanded from macro 'absl_nonnull'

      | ^  
241 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e488f:i32n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_n  o488n | n u liln l_iNnoen ncuolnls
t      e| x                     ^p
r const char* aIn file included from bs2/s2region_coverer.ccs:l18_:
nIn file included from u../src/s2/s2region_coverer.hl:l31a:
bIn file included from l../src/s2/s2cell.he: 28n:
aIn file included from m../src/s2/s1chord_angle.he:#29#:
IIn file included from m../src/s2/s1angle.hp:l28(:
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29\:

      /usr/local/clang/include/absl/strings/cord.h| :                               ^1275
:51: /usr/local/clang/include/absl/base/nullability.hwarning: :257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23: note:  expanded from macro 'absl_nullable'1275
 | i  n257l | i#ndee fvionieIn file included from d s2/s2region_term_indexer.cc a:Cb81os:
rlIn file included from d_/usr/local/clang/include/absl/strings/str_cat.h:n::u116Il:
nlIn file included from la/usr/local/clang/include/absl/strings/internal/stringify_sink.hib:nl23ee:
R /usr/local/clang/include/absl/strings/numbers.he_:pN199:u::l5El:ma pbwarning: ll'diagnose_if' is a clang extension [-Wgcc-compat]ae
c
e      T|   r                      ^199e
 | e ( C o rAdBRSeLp_*I NIn file included from as2/s2region.ccT:bE18sR:
lNIn file included from _A../src/s2/s2region.hnL:o_24nN:
nEIn file included from uE../src/s2/s1angle.hlD:l_28 M:
rIIn file included from eN../src/s2/s2point.hp_:,S25
I:
      ZIn file included from | E../src/s2/util/coding/coder.h                                                  ^(:
b36u:
fIn file included from /usr/local/clang/include/absl/base/nullability.hf../src/s2/base/casts.he::r24136,::
 22In file included from k:../src/s2/base/logging.hF :anote: 21sexpanded from macro 'absl_nonnull':
t
In file included from T/usr/local/clang/include/absl/log/check.ho:  B37241u:
 | fIn file included from #f/usr/local/clang/include/absl/log/internal/check_impl.hde:er21fS:
ii/usr/local/clang/include/absl/log/internal/check_op.hnz:ee503 ):a;1b
:s       l| warning: _    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n

on/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/macros.hn::u489251l::l4718 ::_  Nnote: note: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'n

nul    l489251
 |  |          |                        ^_ _
a t tcroinbsutt eT_1_&( (vd1i,a gcnoonsset_ iTf2(&_ _vb2u,i lctoinns_to bcjheacrt*_ saibzsel(_Onbojn,n u0l)l  <e xNp,r t\e
x      t| )                 ^ 
{     \
      In file included from | s2/s2region_coverer.cc                                              ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2region_coverer.h::24131::
In file included from 22In file included from s2/s2region_term_indexer.cc:../src/s2/s2cell.h: :8128note: :
:
expanded from macro 'absl_nonnull'In file included from In file included from 
/usr/local/clang/include/absl/strings/str_cat.h../src/s2/s1chord_angle.h:  :11624129:
 | :
In file included from #In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hd../src/s2/s1angle.h:e:23f28:
i:
/usr/local/clang/include/absl/strings/numbers.hnIn file included from :e../src/s2/s2point.h200 ::a277b:
s:In file included from l ../src/s2/s2coder.h_:warning: n23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:

nIn file included from n/usr/local/clang/include/absl/status/status.hu:  l67200l:
 |  In file included from c_/usr/local/clang/include/absl/status/internal/status_internal.hNhoa:nr29n*:
u /usr/local/clang/include/absl/strings/cord.hla:bl1282s
:l      47_| :n                     ^ o
warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  F1282a | sitnIlnitnTeo Bvuofifde rC(ouridn:t:3I2n_lti nne,R ecph:a:rS*e taTbrsele_(nCoonrnduRlelp *o uatb_sslt_rn)o
n      n| u      ^l
l /usr/local/clang/include/absl/base/nullability.hr:e241p:,22
:       | note:                                               ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_In file included from dns2/s2region.cceo:fn18in:
nuIn file included from el../src/s2/s2region.h l:a 24b_:
sNIn file included from lo../src/s2/s1angle.h_n:nn28ou:
nlIn file included from nl../src/s2/s2point.hu
:l      25l| :
                      ^In file included from _
../src/s2/util/coding/coder.hN:o36n:
nIn file included from u../src/s2/base/casts.hl:l36
:
      In file included from In file included from | s2/s2region_term_indexer.cc../src/s2/base/logging.h                     ^::
8121:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/log/check.h::11637:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
/usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/log/internal/check_op.h::200503::541::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:  497200: | 32c:h anote: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'*
 abs  l497_ | n o ninnulliln eF acsotnIsntteTxopBru fcfoenrs(tu icnhtIn file included from a3s2/s2region_coverer.ccr2:*_18t :
a bIn file included from ns../src/s2/s2region_coverer.h,l: _31cn:
huIn file included from al../src/s2/s2cell.hrl:*a28 b:
alIn file included from be../src/s2/s1chord_angle.hs :ln29_a:
nmIn file included from oe../src/s2/s1angle.hn#:n#28uI:
lmIn file included from lp../src/s2/s2point.h lo(u t _ s t r ) 
        |                                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  \note: 
expanded from macro 'absl_nonnull'      
|                                ^  
241 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1:In file included from  s2/s2region_term_indexer.cc:warning: 81type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/str_cat.h/usr/local/clang/include/absl/log/internal/check_op.h::116498:
:In file included from 35/usr/local/clang/include/absl/strings/internal/stringify_sink.h:: 23:
note: /usr/local/clang/include/absl/strings/numbers.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
201:5:   498warning:  | 'diagnose_if' is a clang extension [-Wgcc-compat] 
       201i | n t   v 1A,B SiLn_tI NvT2E,R NcAoLn_sNtE EcDh_aMrI*N _aSbIsZlE_(noountn_usltlr ,e xkpFratsetxTto)B u{f f e r S i z e ) ; 
        |      ^ 
  /usr/local/clang/include/absl/base/macros.h :\251
:      18| :                                  ^ 
note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'/usr/local/clang/include/absl/base/nullability.h
:241:22  :251  | note:  expanded from macro 'absl_nonnull' 
__  a241t | t#rdiebfuitnee_ _a(b(sdli_angonnonsuel_li f_(N_o_nbnuuilllt
i      n| _                     ^o
bject_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnu:l27l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpIn file included from ts2/s2region_term_indexer.ccy:(81C:
oIn file included from r/usr/local/clang/include/absl/strings/str_cat.hd:R116e:
pIn file included from */usr/local/clang/include/absl/strings/internal/stringify_sink.h :a23b:
s/usr/local/clang/include/absl/strings/numbers.hl:_217n:u5l:l awarning: b'diagnose_if' is a clang extension [-Wgcc-compat]l
e   r217e | p , 
       |                                                       ^A
BSL_/usr/local/clang/include/absl/base/nullability.hI:N257T:E23R:N Anote: Lexpanded from macro 'absl_nullable'_
NEE  D257_ | M#IdNe_fSiInZeE (a
b      s| l    ^_
nu/usr/local/clang/include/absl/base/macros.hl:l251a:b18l:e  note: _expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'N
ull  a251b | l e 
_      _| a                      ^t
tribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.hs2/s2region_coverer.cc::11618:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2region_coverer.h::2331:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2cell.h::24728::
47In file included from :../src/s2/s1chord_angle.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h  :24727 | :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1302 : 50 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1302  |             i n t _ t y p e *   a b s l _ n o n n u l l   o u t ,   i n t   b a sCeo)r d{R
e      p| *                                              ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   r241e | p#,d
e      f| i                                                 ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2region.cc1312: | 18i:
nIn file included from l../src/s2/s2region.hi:n24e:
 In file included from a../src/s2/s1angle.hb:s28l:
:In file included from :../src/s2/s2point.hc:o25r:
dIn file included from _../src/s2/util/coding/coder.hi:n36t:
eIn file included from r../src/s2/base/casts.hn:a36l:
:In file included from :../src/s2/base/logging.hC:o21r:
dIn file included from R/usr/local/clang/include/absl/log/check.he:p37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_/usr/local/clang/include/absl/log/internal/check_op.hn:u504l:l1a:b lwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
Cor  d504: | :AIBnSlLi_nLeORGe_pI:N:TcElReNaArL(_)C H{E
C      K| _                                     ^O
P_I/usr/local/clang/include/absl/base/nullability.hM:P257L:(23C:h enote: cexpanded from macro 'absl_nullable'k
_L  E257, |  #<d=e)f
i      n| e^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l488_:n32u:l lnote: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
le   _488N | u l lianbllien
e       | c                      ^o
nstexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.hIn file included from :s2/s2region.cc28::
18In file included from :
../src/s2/s1chord_angle.hIn file included from :../src/s2/s2region.h29::
24In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s1angle.h28::
28In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2point.h27::
25In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/util/coding/coder.h23::
36In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/base/casts.h67::
36In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21:
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h1321::3748:
:In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h:warning: 21:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:504:1:  warning: 1321type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
i/usr/local/clang/include/absl/log/internal/check_op.hn:l489i:n47e:  vnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
d C  o489r | d : : I nIn file included from  l s2/s2region_term_indexer.ccic:no81en:
RsIn file included from et/usr/local/clang/include/absl/strings/str_cat.hp ::T116:1:
C&In file included from o /usr/local/clang/include/absl/strings/internal/stringify_sink.hpv:y123T,:
o /usr/local/clang/include/absl/strings/numbers.hAc:ro303rn:as60yt:(  cTwarning: h2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a&
r *v 2  a,303b  | scilon_nlnsiotnn enc uhslailrz *ed _sattb )sF lac_sontnoHsnetnx uT{lo
lB       u| ef                                               ^xf
eprr/usr/local/clang/include/absl/base/nullability.hZt:ee241rx:to22)P:a  {dnote:  1expanded from macro 'absl_nonnull' 6
 ( u  i 241n\ | t
#6      d4| e_                                              ^ft
 v/usr/local/clang/include/absl/base/nullability.ha:l241,: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bosult_)n o{n
n      u| l                                                           ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2region_term_indexer.cc:note: 81expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116257:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e330 :a41b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ulla  b330l | e   _ N u l l a b l e 
        |                        ^ 
            In file included from  s2/s2region.cc : 18i:
nIn file included from t../src/s2/s2region.h_:t24y:
pIn file included from e../src/s2/s1angle.h*: 28a:
bIn file included from s../src/s2/s2point.hl:_25n:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from  ../src/s2/base/casts.ho:u36t:
)In file included from  ../src/s2/base/logging.h{:
21      :
| In file included from                                         ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_impl.h::24121::
22/usr/local/clang/include/absl/log/internal/check_op.h:: 504:note: 1expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #/usr/local/clang/include/absl/log/internal/check_op.hd:e498f:i35n:e  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'b
sl_  n498o | n n u l l   _iNnotn nvu1l,l 
i      n| t                     ^ 
v2, const char* absl_nonnull exprtext) {               In file included from  s2/s2region_term_indexer.cc :\81
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h                                  ^:
116:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::24123::
22:/usr/local/clang/include/absl/strings/numbers.h :335note: :expanded from macro 'absl_nonnull'52
:   warning: 241 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n335e |   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
           absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:18:
In file included from ../src/s2/s2region_union.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_noIn file included from ns2/s2region_term_indexer.ccn:u81l:
l /usr/local/clang/include/absl/strings/str_cat.hS:t398a:t24u:s Mwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
sage  A398s | C S tArl(p
h      a| N            ^u
m(c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfuilnlea balbes lc__nsotnrn u l/l/  _NNOoLnInNuTl(lr
u      n| t                     ^i
me/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
In file included from       s2/s2region.cc| :                      ^18
:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)In file included from s2/s2region_term_indexer.cc:81:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525In file included from  | s2/s2region_term_indexer.cc : 81 :
 /usr/local/clang/include/absl/strings/str_cat.hc:o501r:d32_:i nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rna  l501: | :vCooirdd RAeppp*e nadbPsile_cneosn(nsutldl: :tsrterei)n g{*
       a| b                            ^s
l_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2region_term_indexer.cc::50681::
1:/usr/local/clang/include/absl/strings/str_cat.h :635warning: :36type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
506 | AB  S635L | _iLnOlGi_nIeN TvEoRiNdA LS_tCrHAEpCpKe_nOdP(_sItMdP:L:(sCthreicnkg_*G Ea,b s>l=_)n
o      n| n^u
ll)/usr/local/clang/include/absl/log/internal/check_op.h :{488}:
32      :|                                     ^note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
/usr/local/clang/include/absl/base/nullability.h:241  :48822 | :   note: iexpanded from macro 'absl_nonnull'n
li  n241e |  #cdoenfsitneex parb sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlu
l      l| a                     ^b
le name##Impl(              In file included from  s2/s2region_term_indexer.cc : 81 :
 /usr/local/clang/include/absl/strings/str_cat.h\:
636      :| 29                               ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:   636 | note: vexpanded from macro 'absl_nullable'o
id   257S | t#rdAepfpienned (asbtsdl:_:nsutlrlianbgl*e  a_bNsull_lnaobnlneu
l      l|                        ^d
est, const AlpIn file included from hs2/s2region.cca:N18u:
mIn file included from &../src/s2/s2region.h :a24):
;In file included from 
../src/s2/s1angle.h      :| 28                            ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h25::
241In file included from :../src/s2/util/coding/coder.h22::36 :
In file included from note: ../src/s2/base/casts.hexpanded from macro 'absl_nonnull':
36:
In file included from   ../src/s2/base/logging.h241: | 21#:
dIn file included from e/usr/local/clang/include/absl/log/check.hf:i37n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n506o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_N/usr/local/clang/include/absl/log/internal/check_op.ho:nnul489l:
47      :|                       ^
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1,In file included from  s2/s2region_term_indexer.ccc:o81n:
s/usr/local/clang/include/absl/strings/str_cat.ht: 637T:229&:  vwarning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 con  s637t |  vcohiadr *S tarbAsplp_ennodn(nsutldl: :esxtprritnegx*t )a b{s l _ n o n\n
u      l| l                                              ^ 
de/usr/local/clang/include/absl/base/nullability.hs:t241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 A  l241p | h#adNeufmi&n ea ,a
b      s| l                            ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  /usr/local/clang/include/absl/base/nullability.hu241:l | 241l#:
d22      e:| f i                     ^note: n
expanded from macro 'absl_nonnull'e
 ab  s241l | _#ndoenfniunlel  a_bNsoln_nnuolnln
u      l| l                     ^ 
_Nonnull
      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, cIn file included from os2/s2region.ccn:s18t:
 In file included from A../src/s2/s2region.hl:p24h:
aIn file included from N../src/s2/s1angle.hu:m28&:
 In file included from a../src/s2/s2point.h,:
25      :
| In file included from                             ^../src/s2/util/coding/coder.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/casts.h241::3622:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:eIn file included from 21fs2/s2region_coverer.cc:
i:/usr/local/clang/include/absl/log/internal/check_op.hn18:e:
506 In file included from :a../src/s2/s2region_coverer.h1b::s31 l:
warning: _In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n../src/s2/s2cell.h
o:n28/usr/local/clang/include/absl/log/internal/check_op.hn:
:uIn file included from 497l../src/s2/s1chord_angle.hl:: 3229_::
N In file included from o../src/s2/s1angle.hnote: n:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n28
u:
lIn file included from l../src/s2/s2point.h
  :      49727|  | :
                     ^ In file included from 
 ../src/s2/s2coder.hi:n23l:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29e:
x/usr/local/clang/include/absl/strings/cord.hp:r1530 :c55o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
chIn file included from as2/s2region_term_indexer.cc r:1530*81 |  :
ia/usr/local/clang/include/absl/strings/str_cat.hnb:ls641il:n_29en: u Clwarning: oltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ra
db:l:e  C 641hn | uavnmokeiI#dt# eISrmtaprtlAo(pr p: e: nC dh (u sn tk dI :t :e sr ta rt io nr g( *c  o an\bs
st      l | _C                               ^no
ornd/usr/local/clang/include/absl/base/nullability.hn*:u 257la:lb23 s:dl e_note: snexpanded from macro 'absl_nullable'to
,n   nc257uo | ln#lsd tec foAirlndpe)h  aa{Nb
us      ml| &_                                                      ^ n
ual,l
/usr/local/clang/include/absl/base/nullability.ha      :b| 241l                            ^:e
22 :_/usr/local/clang/include/absl/base/nullability.h N:note: u241expanded from macro 'absl_nonnull'l:
l22a:  b 241l | enote: #
expanded from macro 'absl_nonnull'd      
e| f                        ^i241
n | e# daebfsilnIn file included from _es2/s2region.ccn :oa18nb:
nsIn file included from ul../src/s2/s2region.h_:n24lo:
lnIn file included from  n../src/s2/s1angle.h_u:Nl28ol:
n In file included from n_../src/s2/s2point.huNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2region_term_indexer.cc:81:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_union.cc:24:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_union.cc:24:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from In file included from ../src/s2/s1chord_angle.hs2/s2shape_index_buffered_region.cc::2918:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2shape_index_buffered_region.h::2823:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2327:
:
In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2coder.h::75123::
61In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h751: | 82 :
 In file included from s/usr/local/clang/include/absl/crc/internal/crc_cord_state.ht:a23t:
iIn file included from c/usr/local/clang/include/absl/crc/crc32c.h :u32i:
nIn file included from t/usr/local/clang/include/absl/strings/str_format.hp:t84r:
_t/usr/local/clang/include/absl/strings/internal/str_format/bind.h :P143o:i11n:t erwarning: T'enable_if' is a clang extension [-Wgcc-compat]o
Rep(  s143t | a t u s _ i n t e r neanla:b:lSet_aitfu(ssRetpr*_ faobrsmla_tn_oinnntuelrln arl):;:
E      n| s                                                            ^u
re/usr/local/clang/include/absl/base/nullability.hC:o241n:s22t:e xnote: pexpanded from macro 'absl_nonnull'r
(s  )241, |  #"dceofnisntee xapbsrl _tnroanpn"u)l,l
       _| N          ^o
nnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/strings/internal/str_format/bind.h752::14944::22 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]'enable_if' is a clang extension [-Wgcc-compat]

  752   | 149  |   s t a t i c_ _caotntst status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2shape_index_measures.ccu:l18l:
 In file included from _../src/s2/s2shape_index_measures.hN:o25n:
nIn file included from ../src/s2/s1angle.hu:l28l:

In file included from       ../src/s2/s2point.h| :                     ^24
:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39In file included from  | s2/s2shape_index_buffered_region.cci:n18l:
iIn file included from n../src/s2/s2shape_index_buffered_region.he: 23u:
iIn file included from n../src/s2/s1angle.ht:1286:
_In file included from t../src/s2/s2point.h :U27n:
aIn file included from l../src/s2/s2coder.hi:g23n:
eIn file included from d/usr/local/clang/include/absl/status/status.hL:o67a:
dIn file included from 1/usr/local/clang/include/absl/status/internal/status_internal.h6:(29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t82 :
vIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hi:d23*:
 In file included from a/usr/local/clang/include/absl/crc/crc32c.hb:s32l:
_/usr/local/clang/include/absl/strings/str_format.hn:o164n:n8u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
) {  
164       | |                                              ^ 
int* a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241U | n#udseefdi(n)e  {a brselt_unronn npu_l;l  }_
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const voIn file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
id* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:29:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:31:
In file included from ../src/s2/s2cell.h:28:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h:75:
In file included from /usr/local/clang/include/absl/synchronization/internal/kernel_timeout.h:30:
In file included from /usr/local/clang/include/absl/time/clock.h:29:
In file included from /usr/local/clang/include/absl/time/time.h:101:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
367 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shape_nesting_query.cc -o s2/s2shape_nesting_query.o
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:33:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.hIn file included from :s2/s2shape_index_measures.cc163::1856:
:In file included from  In file included from ../src/s2/s2shape_index_measures.hwarning: s2/s2shape_index_buffered_region.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:25
18:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2shape_index_buffered_region.h:  :2816323:
 | :
In file included from  In file included from ../src/s2/s2point.h ../src/s2/s1angle.hb::o24o28:
l:
 In file included from In file included from P/usr/local/clang/include/absl/hash/hash.ha../src/s2/s2point.h:r:s89e27:
F:
In file included from rIn file included from o/usr/local/clang/include/absl/hash/internal/hash.h../src/s2/s2coder.hm::(9023a:
b:
s/usr/local/clang/include/absl/strings/string_view.hIn file included from l::/usr/local/clang/include/absl/status/status.h53::s:67t54:
r:In file included from i n/usr/local/clang/include/absl/status/internal/status_internal.hwarning: g:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_29v
:
iIn file included from e/usr/local/clang/include/absl/strings/cord.hw:    94v53:
a | In file included from lc/usr/local/clang/include/absl/strings/internal/cordz_info.hou:en31s,:
t esx/usr/local/clang/include/absl/synchronization/mutex.htpdr: :s549:t:rs40it:rni ngwarning: _gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*v
i eawb   s549lN | _u ln losnStanauftelilSc t revriorniogdrV i)Ie;nw
c(      rc| eo                                                       ^mn
esntt/usr/local/clang/include/absl/base/nullability.h Sc:yh241na:cr22h*:S  eanote: mbexpanded from macro 'absl_nonnull'(s
Mlu_  tn241eu | xl#*lda beafliben spel) _ an{bo
snl      n_| un                                                     ^lo
ln nmu/usr/local/clang/include/absl/base/nullability.hul:,l257
 :      23: _| note: N                                       ^oexpanded from macro 'absl_nullable'n
n
u/usr/local/clang/include/absl/base/nullability.hl  :l257
241 |       #:| d                     ^e22f
i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  a_bNsull_lnaobnlneu
l      l|                        ^_
Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2region_coverer.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2region_coverer.h::9433:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2cell_union.h::3129:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/flags/flag.h::55040::
64:/usr/local/clang/include/absl/flags/commandlineflag.h :193warning: :27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |     193  |      v i r t u a l   v o i d   Re a d ( v o i d *   a b s lb_ansoen_niunltle rdnsatl): :cPoenrsTth r=e a0d;S
y      n| c                          ^h
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | w#)d;e
f      i| n                                                               ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:In file included from 28s2/s2region_coverer.cc:
:In file included from 18../src/s2/s2point.h:
:In file included from 27../src/s2/s2region_coverer.h:
:In file included from 33../src/s2/s2coder.h:
:In file included from 23../src/s2/s2cell_union.h:
:In file included from 29/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/flags/flag.h:
:In file included from 42/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/flags/internal/flag.h:
:In file included from 30/usr/local/clang/include/absl/strings/cord.h:
:94/usr/local/clang/include/absl/base/call_once.h:
:In file included from 52/usr/local/clang/include/absl/strings/internal/cordz_info.h::2431::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]578
:45:    warning: 52 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
td:  :578a | t o mvioci<du iBnlto3c2k_(tb>a*s ea_bisnlt_enronnanlu:l:lP eCroTnhtrreoaldWSoyrndc(h
*       | a                       ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull's
);  
241       | | #                                            ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _NonIn file included from ns2/s2region_coverer.ccu:l18l:

In file included from       ../src/s2/s2region_coverer.h| :                     ^33
:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: In file included from warning: s2/s2shape_index_buffered_region.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from    ../src/s2/s2shape_index_buffered_region.h53: | 23 :
 In file included from  ../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h:::27o:
nIn file included from c../src/s2/s2coder.he:_23f:
lIn file included from a/usr/local/clang/include/absl/status/status.hg:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :f31l:
a/usr/local/clang/include/absl/synchronization/mutex.hg:)580;:
34      :|                       ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:   580 | note:  expanded from macro 'absl_nonnull' 
ba  s241e | _#idnetfeirnnea la:b:sPle_rnTohnrneualdlS y_nNcohn*n ualbls
l      _| n                     ^u
llable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2region_coverer.cc94::
18In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2region_coverer.h31::
33:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2cell_union.h581::2938:
:In file included from  /usr/local/clang/include/absl/flags/flag.h:warning: 42:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h:30:
  581/usr/local/clang/include/absl/base/call_once.h | : 96 : 33 :   warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
se_i   n96t | ernal:: P efrrTiherneda dsStydn:c:ha*t oambiscl<_unionntn3u2l_lt >w*) ;a
b      s| l                                     ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  bnote: aexpanded from macro 'absl_nonnull's
e_  i241n | t#edrenfailn:e: Caobnstlr_onloWnonrudl(l
       _| N                                ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2shape_index_buffered_region.ccu:l18l:

In file included from       ../src/s2/s2shape_index_buffered_region.h| :                     ^23
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2region_coverer.cc23::
18In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2region_coverer.h67::
33In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2cell_union.h29::
29In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/flags/flag.h94::
42In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h31::
30:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/call_once.h::58597::2018::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

     97585 |  |      v o i do nTcrea_nfsl(aMgu*H oawb salb_snlo_nnnounlnlu lfll ahgo)w;)
;       |                   ^/
/ /usr/local/clang/include/absl/base/nullability.hu:s241e:d22 :f onote: rexpanded from macro 'absl_nonnull' 
Co  n241d | V#adre-f>iMnuet eaxb stlr_annosnfneurl
l       | _                   ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2region_coverer.cc586: | 18 :
 In file included from v../src/s2/s2region_coverer.ho:i33d:
 In file included from F../src/s2/s2cell_union.he:r29(:
bIn file included from a/usr/local/clang/include/absl/flags/flag.hs:e42_:
iIn file included from n/usr/local/clang/include/absl/flags/internal/flag.ht:e30r:
n/usr/local/clang/include/absl/base/call_once.ha:l111:::40P:e rwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
rea  d111S | yvnocihd*  LaobwsLle_vneolnCnaullllO
n      c| e                                          ^(
ab/usr/local/clang/include/absl/base/nullability.hs:l241:::22o:n cnote: eexpanded from macro 'absl_nonnull'_
fl  a241g | *# daebfsiln_en oanbnsull_ln ofnlnaugl,l  C_aNlolnanbullel&
&       | f                     ^n
,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2shape_index_buffered_region.ccf:i18n:
eIn file included from  ../src/s2/s2shape_index_buffered_region.ha:b23s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:33:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68:In file included from  s2/s2region_coverer.cc:warning: 18:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2region_coverer.h:33:
In file included from ../src/s2/s2cell_union.h:29  :
624In file included from  | /usr/local/clang/include/absl/flags/flag.h: 42 :
eIn file included from x/usr/local/clang/include/absl/flags/internal/flag.hp:l30i:
c/usr/local/clang/include/absl/base/call_once.hi:t194 :M31u:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
ock  (194M | uitnelxi&n em us tAdB:S:La_tIoNmTiEcR<NuAiLn_tA3T2T_RtI>B*U TaEb_sClA_PnToUnRnEuDl_lB YC(otnhtirso)l)W
o      r| d                                                                   ^~~~(

      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnul/usr/local/clang/include/absl/synchronization/mutex.hl:
635      :| 29                     ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635In file included from  | s2/s2region_coverer.cc : 18e:
xIn file included from p../src/s2/s2region_coverer.hl:i33c:
iIn file included from t../src/s2/s2cell_union.h :M29u:
tIn file included from e/usr/local/clang/include/absl/flags/flag.hx:L42o:
cIn file included from k/usr/local/clang/include/absl/flags/internal/flag.h(:M30u:
t/usr/local/clang/include/absl/base/call_once.he:x195*: 16a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
no  n195n | u l l   omnuc)e _AfBlSaLg_*E XaCbLsUlS_InVoEn_nLuOlClK _fFlUaNgC)T I{O
N      (| m               ^u
)
/usr/local/clang/include/absl/base/nullability.h      :| 241                            ^:
22: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:  22241: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneo nanbuslll_ n_oNnonnunlull l_
N      o| n                     ^n
ull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2region_coverer.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2region_coverer.h/usr/local/clang/include/absl/status/internal/status_internal.h::3329:
:
In file included from In file included from ../src/s2/s2cell_union.h/usr/local/clang/include/absl/strings/cord.h::2994:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::4231:
:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/synchronization/mutex.h::30641:
:68/usr/local/clang/include/absl/base/call_once.h:: 200:warning: 40:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |    200  | evxopildi cLiotw LMeuvteelxCLaolclkO(nMcuet(eaxb&s lm:u: oAnBcSeL__fIlNaTgE*R NaAbLs_lA_TnToRnInBuUlTlE _fClAaPgT,U RCEaDl_lBaYb(lteh&i&s )f,n
,      
|                                                                          ^~~~| 
                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No/usr/local/clang/include/absl/synchronization/mutex.hn:n649u:l29l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2shape_index.ccexpanded from macro 'absl_nullable':
18:
  In file included from 257../src/s2/s2shape_index.h | :#54d:
ef/usr/local/clang/include/absl/synchronization/mutex.hi:n489e: 14a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nulla  b489l | e   _ N u l lvaobilde 
(      *| a                      ^b
sl_nullable invariant)(void* absl_nullability_uIn file included from ns2/s2shape_index_buffered_region.cck:n18o:
wIn file included from n../src/s2/s2shape_index_buffered_region.h):,23
:
      In file included from | ../src/s2/s1angle.h             ^:
28:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27257:
:In file included from 23../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hs:l31_:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l948l:a10b:l ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
Nul  l948a | b l eb
o      o| l                      ^ 
(*absIn file included from ls2/s2shape_index.cc_:n18u:
lIn file included from l../src/s2/s2shape_index.ha:b54l:
e/usr/local/clang/include/absl/synchronization/mutex.h :e489v:a45l:_ )warning: (type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]c
ons  t489  | C o n d i t ivooni*d  a(b*salb_snlo_nnnuulllla)b l=e  niunlvlaprtira;n
t      )| (         ^v
oi/usr/local/clang/include/absl/base/nullability.hd:*257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
ul  l257a | b#idleiftiyn_eu nakbnsolw_nn)u,l
l      a| b                                            ^l
e /usr/local/clang/include/absl/base/nullability.h_:289:34: note: Nexpanded from macro 'absl_nullability_unknown'u
ll  a289b | l#ed
e      f| i                      ^n
e absl_In file included from ns2/s2shape_index_buffered_region.ccu:l18l:
aIn file included from b../src/s2/s2shape_index_buffered_region.hi:l23i:
tIn file included from y../src/s2/s1angle.h_:u28n:
kIn file included from n../src/s2/s2point.ho:w27n:
 In file included from _../src/s2/s2coder.hN:u23l:
lIn file included from _/usr/local/clang/include/absl/status/status.hu:n67s:
pIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hc:i29f:
iIn file included from e/usr/local/clang/include/absl/strings/cord.hd:
94      :
| In file included from                                  ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |  In file included from  s2/s2shape_index.ccb:o18o:
lIn file included from  ../src/s2/s2shape_index.h(:*54a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l490_:n13u:l lwarning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]b
le   490e | v a l _ ) ( cvoonisdt*  Caobnsdli_tniuolnl*a baiblsilt_yn_ounnnkunlolw)n  =a rngu)l;l
p      t| r            ^;

      /usr/local/clang/include/absl/base/nullability.h| :                                               ^289
:34/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nullability_unknown'22
:   note: 289expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbuslll_anboinlniutlyl_ u_nNkonnonwunl l_
N      u| l                     ^l
_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:In file included from 27s2/s2shape_index.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2shape_index.h:
:In file included from 54/usr/local/clang/include/absl/status/status.h:
:/usr/local/clang/include/absl/synchronization/mutex.h67::
499In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h35::29 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h499: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hv:o951i:d9 :E nwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
leD  e951b | u g Lvoogi(dc*o nasbts lc_hnaurl*l aabblsel _anrugl_l a=b lneu lnlapmter);;

            | |         ^                                  ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::257257::2323::  note: note: expanded from macro 'absl_nullable'expanded from macro 'absl_nullable'

    257257 |  | ##ddeeffiinnee  aabbssll__nnuullllaabbllee  __NNuullllaabbllee

            | |                       ^                      ^

In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bIn file included from os2/s2shape_index.cco:l18 :
WIn file included from a../src/s2/s2shape_index.hi:t54W:
i/usr/local/clang/include/absl/synchronization/mutex.ht:h549T:i40m:e owarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
(Mut  e549x | *   asbtsalt_inco nvnouildl  Imnuc,r eambesnlt:S:yDnucrhaSteimo(nM uttiemxe*o uatb)s l{_
n      o| n                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241m:u22,:
       | note:                                        ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2shape_index.cc23::
18In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2shape_index.h67::
54In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/synchronization/mutex.h::29550:
:In file included from 64/usr/local/clang/include/absl/strings/cord.h:: 94warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  /usr/local/clang/include/absl/synchronization/mutex.h550: | 1069 : 32 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1069  |      b o o l   W a i t W i t h D e a dblaisnee_(iMnutteerxn*a la:b:sPle_rnTohnrneualdlS ymnuc,h *a basbls:l:_Tniomnen udlela dwl)i;n
e      )|                                                                 ^{

      | /usr/local/clang/include/absl/base/nullability.h                               ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'absl_nonnull'22
:   note: 241expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbosnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40In file included from :s2/s2shape_index_buffered_region.cc :warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2shape_index_buffered_region.h:23  :
551In file included from  | ../src/s2/s1angle.h : 28s:
tIn file included from a../src/s2/s2point.ht:i27c:
 In file included from b../src/s2/s2coder.ho:o23l:
 In file included from D/usr/local/clang/include/absl/status/status.he:c67r:
eIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.he:n29t:
SIn file included from y/usr/local/clang/include/absl/strings/cord.hn:c94h:
SIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hm:(31M:
u/usr/local/clang/include/absl/synchronization/mutex.ht:e1088x:*35 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_no n1088n | u l lv omiud, 
E      n| a                                       ^b
le/usr/local/clang/include/absl/base/nullability.hD:e241b:u22g:L onote: gexpanded from macro 'absl_nonnull'(
co  n241s | t# dcehfairn*e  aabbssll__nnuolnlnaubllle  _nNaomnen)u;l
l      
|                                         ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2shape_index.cc257: | 18#:
dIn file included from e../src/s2/s2shape_index.hf:i54n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a552b:s64l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
lab  l552e |   _ N u l l a b l e 
        |                        ^ 
                  basIn file included from es2/s2shape_index_buffered_region.cc_:i18n:
tIn file included from e../src/s2/s2shape_index_buffered_region.hr:n23a:
lIn file included from :../src/s2/s1angle.h::P28e:
rIn file included from T../src/s2/s2point.hh:r27e:
aIn file included from d../src/s2/s2coder.hS:y23n:
cIn file included from h/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hn:u94l:
lIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hw:,31
:
      /usr/local/clang/include/absl/synchronization/mutex.h| :                                                               ^1091
:26/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note:  expanded from macro 'absl_nonnull'1091
 |   b  o241o | l# dWeafiitnCeo mambosnl(_Mnuotnenxu*l la b_sNlo_nnnounlnlu
l      l|                       ^m
utex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2shape_index.ccd:e18f:
iIn file included from n../src/s2/s2shape_index.he: 54a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l556_:n38o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _  N556o | n n uvloli
d       | L                     ^o
ckSlowLoop(SynchWaitParams* aIn file included from bs2/s2shape_index_buffered_region.ccs:l18_:
nIn file included from o../src/s2/s2shape_index_buffered_region.hn:n23u:
lIn file included from l../src/s2/s1angle.h :w28a:
iIn file included from t../src/s2/s2point.hp:,27 :
iIn file included from n../src/s2/s2coder.ht: 23f:
lIn file included from a/usr/local/clang/include/absl/status/status.hg:s67):
;In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::94241:
:In file included from 22/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/synchronization/mutex.h:  1093241: | 46#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne  a1093b | s l _vnooindn uRlelm o_vNeo(nbnauslel_
i      n| t                     ^e
rnal::PerThreadSyncIn file included from hs2/s2shape_index.cc*: 18a:
bIn file included from s../src/s2/s2shape_index.hl:_54n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n558u:l35l:  swarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                                                ^558
 |  /usr/local/clang/include/absl/base/nullability.h :b241o:o22l:  Lnote: oexpanded from macro 'absl_nonnull'c
kS  l241o | w#WdietfhiDneea dalbisnle_(nMounHnouwl la b_sNlo_nnnounlnlu
l      l|                       ^h
ow,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |  In file included from  s2/s2shape_index_buffered_region.ccv:o18i:
dIn file included from  ../src/s2/s2shape_index_buffered_region.hL:o23c:
kIn file included from S../src/s2/s1angle.hl:o28w:
(In file included from M../src/s2/s2point.hu:H27o:
wIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
hIn file included from o/usr/local/clang/include/absl/strings/cord.hw, co:n94s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hC:o31n:
d/usr/local/clang/include/absl/synchronization/mutex.hi:t1109i:o34n:*  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_ n1109u | l l aebxlpel iccointd ,M
u      t| e                      ^x
Lo/usr/local/clang/include/absl/base/nullability.hc:241k:M22a:y bnote: eexpanded from macro 'absl_nonnull'(
Mu  t241e | x#*d eafbisnle_ naublslla_bnloen nmuul)l
       _| N                                 ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l257
:      23| :                     ^ 
note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2shape_index.ccf:i18n:
eIn file included from  ../src/s2/s2shape_index.ha:b54s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n562u:l58l:a bwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 _N  u562l | l a bvloei
d       | L                      ^o
ckSlow(MuHow absl_nonnull how, cIn file included from os2/s2shape_index_buffered_region.ccn:s18t:
 In file included from C../src/s2/s2shape_index_buffered_region.ho:n23d:
iIn file included from t../src/s2/s1angle.hi:o28n:
*In file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29d:
,In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                                                         ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31257:
:23/usr/local/clang/include/absl/synchronization/mutex.h:: 1117note: :expanded from macro 'absl_nullable'34
:   warning: 257type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#def i1117n | e   aebxspll_incuiltl aMbultee x_LNouclklMaabylbee
(      M| u                      ^t
ex* absl_nullable mu, constIn file included from  s2/s2shape_index.ccC:o18n:
dIn file included from i../src/s2/s2shape_index.h:t54i:
o/usr/local/clang/include/absl/synchronization/mutex.hn:&565 :c36o:n dwarning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                                  ^
  565 | /usr/local/clang/include/absl/base/nullability.h : 257v:o23i:d  note: Uexpanded from macro 'absl_nullable'n
lo  c257k | S#ldoewf(iSnyen cahbWsali_tnPualrlaambsl*e  a_bNsull_lnaublllea
b      l| e                      ^ 
waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2shape_index_buffered_region.ccn:e18 :
aIn file included from b../src/s2/s2shape_index_buffered_region.hs:l23_:
nIn file included from u../src/s2/s1angle.hl:l28a:
bIn file included from l../src/s2/s2point.he: 27_:
NIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/status/status.he:
67      :
| In file included from                       ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable constIn file included from  s2/s2shape_index.ccm:u18_:
;In file included from 
../src/s2/s2shape_index.h      :| 54         ^:

/usr/local/clang/include/absl/synchronization/mutex.h:576/usr/local/clang/include/absl/base/nullability.h::49257:: 23warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
  576   | 257  |  #vdoeifdi nTer yaRbesmlo_vneu(lblaasbel_ei n_tNeurlnlaalb:l:eP
e      r| T                      ^h
readSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2shape_index.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2shape_index.h/usr/local/clang/include/absl/status/status.h::5467:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h580::2934:
:In file included from  /usr/local/clang/include/absl/strings/cord.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :58031 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :b1146a:s7e:_ iwarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
erna l1146: | : P e r T h rtehaidsS)y)n cAhB*S La_bEsXlC_LnUuSlIlVaEb_lLeO CWKa_kFeUuNpC(T
I      O| N                                 ^(
mu/usr/local/clang/include/absl/base/nullability.h):
257      :| 23      ^~~~:
 note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^/usr/local/clang/include/absl/synchronization/mutex.h
:1153:39: In file included from warning: s2/s2shape_index.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2shape_index.h :115354 | :
 /usr/local/clang/include/absl/synchronization/mutex.h :e581x:p38l:i cwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 R  e581l | e a s a b l ebMaustee_xiLnotcekr(nMault:e:xP*e raTbhsrle_andoSnynnuclhl*  maub)s
l      _| n                                      ^o
nnu/usr/local/clang/include/absl/base/nullability.hl:l241 :w22):; 
      note: | expanded from macro 'absl_nonnull'                                     ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:In file included from 18s2/s2shape_index.cc:
:In file included from 18../src/s2/s2shape_index_buffered_region.h:
:In file included from 23../src/s2/s2shape_index.h:
:In file included from 54../src/s2/s1angle.h:
:/usr/local/clang/include/absl/synchronization/mutex.h28::
585In file included from :../src/s2/s2point.h20::27 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :58567 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hv:o29i:
dIn file included from  /usr/local/clang/include/absl/strings/cord.hT:r94a:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.h(:M31u:
H/usr/local/clang/include/absl/synchronization/mutex.ho:w1158 :a53b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
onnu l1158l |   h o w ) ;  M u/t/e xu&s emdu  fAoBrS LC_oInNdTVEaRrN-A>LM_uAtTeTxR ItBrUaTnEs_fCeArP
T      U| R                   ^E
D_/usr/local/clang/include/absl/base/nullability.hB:Y241(:t22h:i snote: )expanded from macro 'absl_nonnull',

        | 241                                                    ^~~~ | 
#define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166In file included from  | s2/s2shape_index.cc : 18e:
xIn file included from p../src/s2/s2shape_index.hl:i54c:
i/usr/local/clang/include/absl/synchronization/mutex.ht: 586R:e43l:e awarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble  M586u | t e xvLooicdk (FMeurt(ebxa*s ea_bisnlt_enronnanlu:l:lP emruT,h rceoandsSty nCcohn*d iatbisoln_&n ocnonnudl)l

            | |                                       ^                                          ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(coIn file included from ns2/s2shape_index_buffered_region.ccs:t18 :
vIn file included from o../src/s2/s2shape_index_buffered_region.hl:a23t:
iIn file included from l../src/s2/s1angle.he: 28M:
uIn file included from t../src/s2/s2point.he:x27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
/In file included from */usr/local/clang/include/absl/strings/cord.hi:g94n:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.he:d31*:
In file included from //usr/local/clang/include/absl/synchronization/mutex.hs2/s2region_coverer.cc):: 117918{::
}10In file included from 
:../src/s2/s2region_coverer.h       :| 33                                       ^warning: :

type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/base/nullability.h../src/s2/s2cell_union.h:: 257291179::
 | 23/usr/local/clang/include/absl/flags/flag.h ::  110note: Mexpanded from macro 'absl_nullable':u
29t:e   x257*warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | a
#bdsel  _f110ni | unvloeli adba lSebes tmlFul__a;ng
(u      al| b         ^ls
alb/usr/local/clang/include/absl/base/nullability.h:l::e257F :l_23aN:gu <lnote: Tlexpanded from macro 'absl_nullable'>a
*b   al257be | s
#l      d_| e                      ^nfo
innneul la bfslla_gn,u lcloanbslte  T_&N uvl)l a{b
l      e| 
                            ^      
|                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region_coverer.cc:18:
In file included from ../src/s2/s2region_coverer.h:33:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |  In file included from  s2/s2shape_index_buffered_region.cce:x18p:
lIn file included from i../src/s2/s2shape_index_buffered_region.hc:i23t:
 In file included from M../src/s2/s1angle.hu:t28e:
xIn file included from L../src/s2/s2point.ho:c27k:
(In file included from M../src/s2/s2coder.hu:t23e:
xIn file included from &/usr/local/clang/include/absl/status/status.h :m67u:
 In file included from A/usr/local/clang/include/absl/status/internal/status_internal.hB:S29L:
_In file included from I/usr/local/clang/include/absl/strings/cord.hN:T94E:
RIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hA:L31_:
A/usr/local/clang/include/absl/synchronization/mutex.hT:T1221R:I54B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
CAPT U1221R | EbDo_oBlY (Ctohnidsi)t)i
o      n| :                                                                   ^~~~:
CastAndCallFunction(const Condition* absl_non/usr/local/clang/include/absl/synchronization/mutex.hn:u635l:l29 :c )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{

      |                                                      ^
  635 | /usr/local/clang/include/absl/base/nullability.h : 241e:x22p:l inote: cexpanded from macro 'absl_nonnull'i
t   M241u | t#edxeLfoicnke( Maubtselx_*n oanbnsull_ln o_nNnounlnlu lmlu
)       | A                     ^B
SL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shape_index.cc
:18:
In file included from  ../src/s2/s2shape_index.h1230: | 54 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 641b:o68o:l  warning: ('lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*
absl  _641n | o n neuxlpll ifcuintc )M(uTt*e xaLbosclk_(nMuultleaxb&i lmiut yA_BuSnLk_nIoNwTnE)R,N
A      L| _           ^A
TT/usr/local/clang/include/absl/base/nullability.hR:I241B:U22T:E _note: Cexpanded from macro 'absl_nonnull'A
PT  U241R | E#Dd_eBfYi(nteh iasb)s,l
_      n| o                                                                   ^~~~n
null _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/synchronization/mutex.h::23649:
:In file included from 29/usr/local/clang/include/absl/status/status.h:: 67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 649/usr/local/clang/include/absl/strings/cord.h | : 94 :
eIn file included from x/usr/local/clang/include/absl/strings/internal/cordz_info.hp:l31i:
c/usr/local/clang/include/absl/synchronization/mutex.hi:t1230 :M34u:t ewarning: xtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]L
ock (1230M | u t e x *b oaobls l(_*naobnsnlu_lnlo nmnuu,l lc ofnusntc )C(oTn*d iatbisoln_&n uclolnadb)i
l      i| t                            ^y
_u/usr/local/clang/include/absl/base/nullability.hn:k241n:o22w:n )note: ,expanded from macro 'absl_nonnull'

      |                                    ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e289f:i34n:e  note: aexpanded from macro 'absl_nullability_unknown'b
sl_  n289o | n#nduelfli n_eN oanbnsull_ln
u      l| l                     ^a
bility_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2shape_index_buffered_region.cc670: | 18 :
 In file included from e../src/s2/s2shape_index_buffered_region.hx:p23l:
iIn file included from c../src/s2/s1angle.hi:t28 :
RIn file included from e../src/s2/s2point.ha:d27e:
rIn file included from M../src/s2/s2coder.hu:t23e:
xIn file included from L/usr/local/clang/include/absl/status/status.ho:c67k:
(In file included from M/usr/local/clang/include/absl/status/internal/status_internal.hu:t29e:
xIn file included from &/usr/local/clang/include/absl/strings/cord.h :m94u:
 In file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hB:S31L:
_I/usr/local/clang/include/absl/synchronization/mutex.hN:T1241E:R12N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
TTRI B1241U | T E _ C AbPoToUlR E(D*_aBbYs(lt_hniosn)n)u
l      l|                                                                           ^~~~f
unc)(T* absl_nullability_unknown/usr/local/clang/include/absl/synchronization/mutex.h):,678
:      35| :           ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:   678 | note:  expanded from macro 'absl_nonnull' 
ex  p241l | i#cdietf iRneea daebrsMlu_tneoxnLnouclkl( M_uNtoenxn*u lalb
s      l| _                     ^n
onnullIn file included from  s2/s2shape_index_buffered_region.ccm:u18):
 In file included from A../src/s2/s2shape_index_buffered_region.hB:S23L:
_In file included from S../src/s2/s1angle.hH:A28R:
EIn file included from D../src/s2/s2point.h_:L27O:
CIn file included from K../src/s2/s2coder.h_:F23U:
NIn file included from C/usr/local/clang/include/absl/status/status.hT:I67O:
NIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hm:u29):

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                                  ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:/usr/local/clang/include/absl/synchronization/mutex.h22::1241 :note: 34expanded from macro 'absl_nonnull':
   warning: 241type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
#de f1241i | n e   a bbsolo_ln o(n*naublsll __nNoonnnnuullll 
f      u| n                     ^c
)(T* absl_nullability_unknown),
      | In file included from                                  ^s2/s2shape_index.cc
:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289../src/s2/s2shape_index.h::3454::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nullability_unknown'681
:74:   289warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]#
defi  n681e |   a besxlp_lniuclilta bRielaidteyr_MuuntkenxoLwonck(Mu t_eNxu&l lm_uu nAsBpSeLc_iIfNiTeEdR
N      A| L                                 ^_
ATTRIBUTE_CAPTURED_BY(this)In file included from ,s2/s2shape_index_buffered_region.cc
:      18| :
                                                                         ^~~~In file included from 
../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
689:35:  1242warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     t689y | p e neaxmpel iacbistl :R:etaydpeer_MiudteenxtLiotcyk<(TM>u:t:etxy*p ea*b salb_snlo_nnnuulllla bmiul,i tcyo_nusntk nCoownnd
i      t| i                                           ^o
n&/usr/local/clang/include/absl/base/nullability.h :c289o:n34d:) 
      note: | expanded from macro 'absl_nullability_unknown'                                  ^

  /usr/local/clang/include/absl/base/nullability.h289: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneuflilnaeb ialbistly__nuonnknnuolwln  __NNounlnlu_luln
s      p| e                     ^c
ified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 In file included from 1250s2/s2shape_index.cc | : 18 :
 In file included from  ../src/s2/s2shape_index.hb:o54o:
l/usr/local/clang/include/absl/synchronization/mutex.h :(710a:b74s:l :warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
ype_i  d710e | n t ietxyp<lTi>c:i:tt yWprei:t:e*r Maubtselx_Lnoocnkn(uMlult emxe&t hmoud )A(B)S)L
_      I| N                                          ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22A:T Tnote: Rexpanded from macro 'absl_nonnull'I
BU  T241E | _#CdAePfTiUnReE Da_bBsYl(_tnhoinsn)u)l
l       | _                                                                         ^~~~N
onnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnuIn file included from ls2/s2shape_index_buffered_region.ccl: 18m:
uIn file included from )../src/s2/s2shape_index_buffered_region.h
:      23| :
                                  ^In file included from 
../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1259 :_14N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll
       1259|  |                      ^ 
   const T* absl_nonnull object,
      |              ^
In file included from s2/s2shape_index.cc/usr/local/clang/include/absl/base/nullability.h::18241:
:In file included from 22../src/s2/s2shape_index.h:: 54:
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
722:74  :241  | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efin  e722  | a b selx_pnonnluilcli t_ NWornintuelrlM
u      t| e                     ^x
Lock(Mutex& mu ABSL_In file included from Is2/s2shape_index_buffered_region.ccN:T18E:
RIn file included from N../src/s2/s2shape_index_buffered_region.hA:L23_:
AIn file included from T../src/s2/s1angle.hT:R28I:
BIn file included from U../src/s2/s2point.hT:E27_:
CIn file included from A../src/s2/s2coder.hP:T23U:
RIn file included from E/usr/local/clang/include/absl/status/status.hD:_67B:
YIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.ht:h29i:
sIn file included from )/usr/local/clang/include/absl/strings/cord.h,:
94      :
| In file included from                                                                          ^~~~/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (ab/usr/local/clang/include/absl/synchronization/mutex.hs:l731:::35t:y pwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
ide  n731t | i t ye<xTp>l:i:ctiytp eW:r:i*t earbMsult_enxoLnoncukl(lM umteetxh*o da)b(s)l
_      n| o                                          ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :m22u:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | C#odnedfiitnieo na&b sclo_nndo)n
n      u| l                                  ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from In file included from ../src/s2/s2shape_index.hs2/s2shape_index_buffered_region.cc::5418:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2shape_index_buffered_region.h801::2320:
:In file included from  ../src/s2/s1angle.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:  23801:
 | In file included from  /usr/local/clang/include/absl/status/status.h :C67o:
nIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.hi:t29i:
oIn file included from n/usr/local/clang/include/absl/strings/cord.h(:b94o:
oIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :(31*:
a/usr/local/clang/include/absl/synchronization/mutex.hb:s1293l:_33n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll  f1293u | nvco)i(dv oRiedg*i satbesrlM_untuelxlTarbaicleirt(yv_ouindk n(o*wanb)s,l
_      n| o                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :f22n:) (note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu lmls g_,N
o      n| n                                ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shape_index.cc241: | 18#:
dIn file included from e../src/s2/s2shape_index.hf:i54n:
e/usr/local/clang/include/absl/synchronization/mutex.h :a801b:s45l:_ nwarning: otype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]n
nul  l801  | _ N oCnonnudlilt
i      o| n                     ^(
bool In file included from (s2/s2shape_index_buffered_region.cc*:a18b:
sIn file included from l../src/s2/s2shape_index_buffered_region.h_:n23o:
nIn file included from n../src/s2/s1angle.hu:l28l:
 In file included from f../src/s2/s2point.hu:n27c:
)In file included from (../src/s2/s2coder.hv:o23i:
dIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94i:
lIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.ht:y31_:
u/usr/local/clang/include/absl/synchronization/mutex.hn:k1293n:o62w:n )warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                             ^
 1293/usr/local/clang/include/absl/base/nullability.h | :v289o:i34d:  Rnote: eexpanded from macro 'absl_nullability_unknown'g
is  t289e | r#MduetfeixnTer aacbesrl(_vnouildl a(b*ialbistly__nuonnknnuolwln  f_nN)u(lclo_nusnts pcehcairf*i eadb
s      l| _                                 ^n
onnull msg,
      In file included from | s2/s2shape_index.cc                                                             ^:
18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2shape_index.h241::5422:
:/usr/local/clang/include/absl/synchronization/mutex.h :note: 802expanded from macro 'absl_nonnull':
19:   241warning:  | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]#
de  f802i | n e   a b s l _ n o n n uvloli d_*N oanbnsull_ln
u      l| l                     ^a
bility_uIn file included from ns2/s2shape_index_buffered_region.cck:n18o:
wIn file included from n../src/s2/s2shape_index_buffered_region.h :a23r:
gIn file included from )../src/s2/s1angle.h;:
28      :
| In file included from                   ^../src/s2/s2point.h
:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289../src/s2/s2coder.h::3423::
 In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullability_unknown':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h289: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n1294u:l62l:a bwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ity_ u1294n | k n o w n   _ N u l l _ u n s p e c i f i e d 
        |                                   ^
                      In file included from  s2/s2shape_index.ccc:o18n:
sIn file included from t../src/s2/s2shape_index.h :v54o:
i/usr/local/clang/include/absl/synchronization/mutex.hd:*814 :a20b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u814l | l   oCbojn,d
i      t| i                                                             ^o
n(/usr/local/clang/include/absl/base/nullability.hb:o241o:l22 :( *note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ef uanbcs)l(_Tn*o nanbuslll_ n_uNlolnanbuillli
t      y| _                     ^u
nknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2shape_index_buffered_region.cca:b18s:
lIn file included from _../src/s2/s2shape_index_buffered_region.hn:o23n:
nIn file included from u../src/s2/s1angle.hl:l28 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2shape_index.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2shape_index.h:
:In file included from 54/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:/usr/local/clang/include/absl/synchronization/mutex.h31::
814/usr/local/clang/include/absl/synchronization/mutex.h::421309:: 35warning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |    1309C | ovnodiidt iRoeng(ibsotoelr C(o*nadbVsalr_Tnroancneurl(lv ofiudn c()*(aTb*s la_bnsoln_nnuullll afbni)l(i
t      y| _                                  ^u
nk/usr/local/clang/include/absl/base/nullability.hn:o241w:n22):, 
      note: | expanded from macro 'absl_nonnull'                                         ^

  /usr/local/clang/include/absl/base/nullability.h241: | 289#:d34e:f inote: nexpanded from macro 'absl_nullability_unknown'e
 a  b289s | l#_dneofninnuel la b_sNlo_nnnuulllla
b      i| l                     ^i
ty_uIn file included from ns2/s2shape_index_buffered_region.cck:n18o:
wIn file included from n../src/s2/s2shape_index_buffered_region.h :_23N:
uIn file included from l../src/s2/s1angle.hl:_28u:
nIn file included from s../src/s2/s2point.hp:e27c:
iIn file included from f../src/s2/s2coder.hi:e23d:

In file included from       /usr/local/clang/include/absl/status/status.h| :                                 ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310In file included from :s2/s2shape_index.cc17::18 :
In file included from warning: ../src/s2/s2shape_index.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
54:
/usr/local/clang/include/absl/synchronization/mutex.h :1310815 | : 16 :   warning: ctype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
ns  t815  | c h a r *   a b s l _ n oTn*n ualbls lm_sngu,l lcaobnislti tvyo_iudn*k naobwsnl _anrogn)n;u
l      l|                 ^c
v)/usr/local/clang/include/absl/base/nullability.h):;289
:      34| :                ^ 
note: expanded from macro 'absl_nullability_unknown'/usr/local/clang/include/absl/base/nullability.h
:241:  22289: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbli_lniotnyn_uulnlk n_oNwonn n_uNlull
l      _| u                     ^n
specifiIn file included from es2/s2shape_index_buffered_region.ccd:
18      :
| In file included from                                  ^../src/s2/s2shape_index_buffered_region.h
:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94In file included from :
s2/s2shape_index.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h18::
31In file included from :
../src/s2/s2shape_index.h/usr/local/clang/include/absl/synchronization/mutex.h::541310:
:/usr/local/clang/include/absl/synchronization/mutex.h47::830 :warning: 14type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1310
 |      830  | c o n s t   cbhoaorl*  (a*basbls_ln_onnonnunlull lm sfgu,n cc)o(nTs*t  avbosild_*n ualblsalb_inlointnyu_luln kcnvo)w)n;)
,      
|                                                     ^| 
             ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shape_index_buffered_region.ccs2/s2shape_index.cc::1818:
:
In file included from In file included from ../src/s2/s2shape_index_buffered_region.h../src/s2/s2shape_index.h::2354:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s1angle.h::109328::
46In file included from :../src/s2/s2point.h :warning: 27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2coder.h:23 :
1093In file included from  | /usr/local/clang/include/absl/status/status.h : 67v:
oIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hd: 29R:
em/usr/local/clang/include/absl/strings/cord.ho:v109e:(53b:a swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
intern  a109l | :v:oPiedr TChorpeyaCdoSrydnTcohS*t raibnsgl(_cnoonnnsutl lC osr)d;&
       s| r                                             ^c
, /usr/local/clang/include/absl/base/nullability.hs:t241d::22::s tnote: rexpanded from macro 'absl_nonnull'i
ng  *241  | a#bdself_innoen naublsll _dnsotn)n;u
l      l|                                                      ^_
Nonnu/usr/local/clang/include/absl/base/nullability.hl:l241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
In file included from       s2/s2shape_index.cc| :                     ^18
:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: In file included from warning: s2/s2shape_index.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2shape_index.h:54  :
425/usr/local/clang/include/absl/synchronization/mutex.h | : 1146 :f7r:i ewarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
 voi d1146  | C o p y C o rtdhTiosS)t)r iAnBgS(Lc_oEnXsCtL UCSoIrVdE&_ LsOrCcK,_ FsUtNdC:T:IsOtNr(imnug)*
       a| b      ^~~~s
l_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #/usr/local/clang/include/absl/synchronization/mutex.hd:e1153f:i39n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_ n1153o | n n uelxlp l_iNcointn uRlell
e      a| s                     ^a
bleMutexLock(Mutex* absl_nonnIn file included from us2/s2shape_index_buffered_region.ccl:l18 :
mIn file included from u../src/s2/s2shape_index_buffered_region.h):
23      :
| In file included from                                       ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :a437b:s47l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   437_ | N o n n u l l 
        |                       ^ 
                      std::string* absIn file included from ls2/s2shape_index.cc_:n18o:
nIn file included from n../src/s2/s2shape_index.hu:l54l:
 /usr/local/clang/include/absl/synchronization/mutex.hd:s1158t:)53;:
       warning: | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]                                              ^

/usr/local/clang/include/absl/base/nullability.h: 2411158: | 22 :   note:  expanded from macro 'absl_nonnull' 
 M  u241t | e#xd&e fmiun eABSL_ IaNbTsElR_NnAoLn_nAuTlTlR I_BNUoTnEn_uClAlP
T      U| R                     ^E
D_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   exIn file included from ps2/s2shape_index_buffered_region.ccl:i18c:
iIn file included from t../src/s2/s2shape_index_buffered_region.h :R23e:
lIn file included from e../src/s2/s1angle.ha:s28a:
bIn file included from l../src/s2/s2point.he:M27u:
tIn file included from e../src/s2/s2coder.hx:L23o:
cIn file included from k/usr/local/clang/include/absl/status/status.h(:M67u:
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s480l:_39n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   m480u | ,   c o nussti nCgo npdoiitnitoenr&  =c ocnodn)s
t       | v                                      ^a
lu/usr/local/clang/include/absl/base/nullability.he:_241t:y22p:e *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle; 
a      b| s                                      ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullaIn file included from bs2/s2shape_index_buffered_region.ccl:e18
:
      In file included from | ../src/s2/s2shape_index_buffered_region.h                      ^:
23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullabIn file included from ls2/s2shape_index.cce: 18_:
NIn file included from u../src/s2/s2shape_index.hl:l54a:
b/usr/local/clang/include/absl/synchronization/mutex.hl:e1212
:      52| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.ccIn file included from :s2/s2shape_index.cc18::
18In file included from :
../src/s2/s2shape_index_buffered_region.hIn file included from :../src/s2/s2shape_index.h23::
54In file included from :
../src/s2/s1angle.h/usr/local/clang/include/absl/synchronization/mutex.h::281221:
:In file included from 54../src/s2/s2point.h:: 27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from  /usr/local/clang/include/absl/status/status.h1221: | 67b:
oIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hl: 29C:
o/usr/local/clang/include/absl/strings/cord.hn:d582i:t37i:o nwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
Cast  A582n | d C a l leFxupnlcitciiotn (CchounnsktR aCnogned(ictoinosnt*  Caobrsdl*_ naobnsnlu_lnlo ncn)u l{l
       c| o                                                     ^r
d)/usr/local/clang/include/absl/base/nullability.h ::241 :c22o:r dnote: _expanded from macro 'absl_nonnull'(
cord)   241{ | }#
d      e| f                                    ^i
ne /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2shape_index.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2shape_index.h:
:In file included from 54/usr/local/clang/include/absl/status/internal/status_internal.h:
:/usr/local/clang/include/absl/synchronization/mutex.h29::
1230/usr/local/clang/include/absl/strings/cord.h::12588:: 17:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |    588  |     b o oclo n(s*ta bCsolr_dn*o nanbuslll_ nfounnncu)l(lT *c oarbds_l;_
n      u| l                ^l
ab/usr/local/clang/include/absl/base/nullability.hi:l241i:t22y:_ unote: nexpanded from macro 'absl_nonnull'k
no  w241n | )#,d
e      f| i           ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*In file included from as2/s2shape_index_buffered_region.ccb:s18l:
_In file included from n../src/s2/s2shape_index_buffered_region.ho:n23n:
uIn file included from l../src/s2/s1angle.hl: 28f:
uIn file included from n../src/s2/s2point.hc:)27(:
TIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:b29i:
l/usr/local/clang/include/absl/strings/cord.hi:t641y:_33u:n kwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn)  ,641
 |        |                                   ^ 
 u/usr/local/clang/include/absl/base/nullability.hs:i289n:g34 :p onote: iexpanded from macro 'absl_nullability_unknown'n
te  r289  | =# dceofnisnte  cahbasrl*_ naublslla_bniolnintuyl_lu;n
k      n| o                                ^w
n /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:_ unote: nexpanded from macro 'absl_nonnull's
pe  c241i | f#ideedf
i      n| e                                 ^ 
absl_nonnull _In file included from Ns2/s2shape_index.cco:n18n:
uIn file included from l../src/s2/s2shape_index.hl:
54      :
| /usr/local/clang/include/absl/synchronization/mutex.h                     ^:
1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabiIn file included from ls2/s2shape_index_buffered_region.cci:t18y:
_In file included from u../src/s2/s2shape_index_buffered_region.hn:k23n:
oIn file included from w../src/s2/s1angle.hn: 28_:
NIn file included from u../src/s2/s2point.hl:l27_:
uIn file included from n../src/s2/s2coder.hs:p23e:
cIn file included from i/usr/local/clang/include/absl/status/status.hf:i67e:
dIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                                 ^:

/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2shape_index.cc:18  :
241In file included from  | ../src/s2/s2shape_index.h#:d54e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n1241e: 12a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non n1241u | l l   _ Nboononlu l(l*
a      b| s                     ^l
_nonnull func)(T* absl_nullability_unknown),
      |            ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shape_index_buffered_region.cc::24118::
22In file included from :../src/s2/s2shape_index_buffered_region.h :note: 23expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   a667b | s l _sntoantniucl lC o_rNdo nAnduvlaln
c      e| A                     ^n
dRead(ChIn file included from as2/s2shape_index.ccr:I18t:
eIn file included from r../src/s2/s2shape_index.ha:t54o:
r/usr/local/clang/include/absl/synchronization/mutex.h*: 1241a:b34s:l _warning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
nnu l1241l |   i t ,  bsoiozle _(t* anb_sbly_tneosn)n;u
l      l|                                             ^f
un/usr/local/clang/include/absl/base/nullability.hc:)241(:T22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebfiilniet ya_busnlk_nnoownnn)u,l
l       | _                                 ^N
on/usr/local/clang/include/absl/base/nullability.hn:u289l:l34
:       | note:                      ^expanded from macro 'absl_nullability_unknown'

  289 | #define absl_nullabilityIn file included from _s2/s2shape_index_buffered_region.ccu:n18k:
nIn file included from o../src/s2/s2shape_index_buffered_region.hw:n23 :
_In file included from N../src/s2/s1angle.hu:l28l:
_In file included from u../src/s2/s2point.hn:s27p:
eIn file included from c../src/s2/s2coder.hi:f23i:
eIn file included from d/usr/local/clang/include/absl/status/status.h
:      67| :
                                 ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   statiIn file included from cs2/s2shape_index.cc :v18o:
iIn file included from d../src/s2/s2shape_index.h :A54d:
v/usr/local/clang/include/absl/synchronization/mutex.ha:n1242c:e44(:C hwarning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]r
Ite r1242a | t o r *  taybpseln_anmoen naublsll :i:tt,y psei_zied_etn tni_tbyy<tTe>s:):;t
y      p| e                                    ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bi  l241i | t#yd_eufniknneo wanb
s      l| _                                           ^n
on/usr/local/clang/include/absl/base/nullability.hn:u289l:l34 :_ Nnote: oexpanded from macro 'absl_nullability_unknown'n
nu  l289 | l#
d      e| f                     ^i
ne absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from In file included from s2/s2shape_index.cc../src/s2/s2shape_index_buffered_region.h::1823:
:
In file included from In file included from ../src/s2/s2shape_index.h../src/s2/s1angle.h::5428:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2point.h1249::278:
:In file included from  ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h :124967 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29T:
*/usr/local/clang/include/absl/strings/cord.h :a730b:s36l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   730o | b j e c te,x
p      l| i       ^c
it/usr/local/clang/include/absl/base/nullability.h :C241h:a22r:R anote: nexpanded from macro 'absl_nonnull'g
e(  c241o | n#sdte fCionred *a basbls_ln_onnonnunlull l_ Ncoonrndu)l l:
       c| o                     ^r
d_(cord) {}
      |                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shape_index.cc::24118::
22In file included from :../src/s2/s2shape_index.h :54note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/synchronization/mutex.h
:1250:  43241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin e1250  | a b s l _bnooonln u(lalb s_lN:o:ntnyuplel_
i      d| e                     ^n
tity<T>::type::* absl_nonnull meIn file included from ts2/s2shape_index_buffered_region.cch:o18d:
)In file included from (../src/s2/s2shape_index_buffered_region.h):)23
:
      In file included from | ../src/s2/s1angle.h                                          ^:
28:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2point.h241::2722:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :a736b:s17l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l736  | _ N o n ncuolnls
t       | C                     ^o
rd* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2shape_index.cc
:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.hIn file included from :s2/s2shape_index.cc23::
18In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2shape_index.h28::
54In file included from :
../src/s2/s2point.h/usr/local/clang/include/absl/synchronization/mutex.h::271260:
:In file included from 43../src/s2/s2coder.h:: 23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/status.h:67:
 In file included from 1260/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 /usr/local/clang/include/absl/strings/cord.h :b795o:o43l:  (warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl::  t795y | p e _firdieenntdi tvyo<iTd> :A:btsylpFeo:r:m*a taFblsuls_hn(oanbnsull:l: Cmoertdh*o da)b(s)l
_      n| o                                          ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :c22o:r dnote: ,expanded from macro 'absl_nonnull'

      |                                             ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shape_index_buffered_region.cc::24118::
22In file included from :../src/s2/s2shape_index_buffered_region.h :note: 23expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f27i:
nIn file included from e../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 _/usr/local/clang/include/absl/strings/cord.hN:o898n:n27u:l lwarning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                      ^
  898 | In file included from  s2/s2shape_index.cc :f18r:
iIn file included from e../src/s2/s2shape_index.hn:d54 :
c/usr/local/clang/include/absl/synchronization/mutex.ho:n1293s:t62 :C owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
zIn f1293o | *v oaibds lR_enguilsltaebrlMeu tGeextTCroarcdezrI(nvfooiFdo r(T*easbtsiln_gn(o
n      n| u                          ^l
l f/usr/local/clang/include/absl/base/nullability.hn:)257(:c23o:n snote: texpanded from macro 'absl_nullable' 
ch  a257r | *# daebfsiln_en oanbnsull_ln umlslga,b
l      e|                                                               ^_
N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:54:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from ../src/s2/s2point.hs2/s2shape_index.cc::1827:
:
In file included from In file included from ../src/s2/s2shape_index.h../src/s2/s2coder.h::5423:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/status/status.h1309::6735:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]29
:
/usr/local/clang/include/absl/strings/cord.h: 9271309: | 43v:o iwarning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
Regi  s927t | e r C o n d V a r T r a c e r ( v o i d   ( * a b s l _ n o n n u lClo rfdnR)e(p
*       | a                                  ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e
 r  e241p | )#;d
e      f| i                                          ^n
e a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257_ | N#odnenfuilnle
       a| b                     ^s
l_nIn file included from us2/s2shape_index.ccl:l18a:
bIn file included from l../src/s2/s2shape_index.he: 54_:
N/usr/local/clang/include/absl/synchronization/mutex.hu:l1310l:a17b:l ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^
 1310 |     const char* absl_In file included from ns2/s2shape_index_buffered_region.cco:n18n:
uIn file included from l../src/s2/s2shape_index_buffered_region.hl: 23m:
sIn file included from g../src/s2/s1angle.h,: 28c:
oIn file included from n../src/s2/s2point.hs:t27 :
vIn file included from o../src/s2/s2coder.hi:d23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l929 :c26v:) )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                 ^
  929/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :v onote: iexpanded from macro 'absl_nonnull'd
 S  w241a | p#(dIenfliinnee Raebps*l _anbosnln_unloln n_uNloln nruhlsl)
;      
|                            ^| 
                         ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2shape_index.cc22::18 :
In file included from note: ../src/s2/s2shape_index.hexpanded from macro 'absl_nonnull':
54:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 1310#:d47e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 a b1310s | l _ n o ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
onnull msg, const void* abslIn file included from _s2/s2shape_index_buffered_region.ccn:o18n:
nIn file included from u../src/s2/s2shape_index_buffered_region.hl:l23 :
cIn file included from v../src/s2/s1angle.h):)28;:

In file included from       ../src/s2/s2point.h| :                                              ^27
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#/usr/local/clang/include/absl/strings/cord.hd:e932f:i17n:e  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_  n932o | n n u l lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from In file included from ../src/s2/s1angle.hs2/s2region.cc::2818:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2region.h::2724:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s1angle.h::2328:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2point.h::6727:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2coder.h::2923:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::131267::
38In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h: 231312:
 | In file included from i/usr/local/clang/include/absl/crc/crc32c.hn:l32i:
nIn file included from e/usr/local/clang/include/absl/strings/str_format.h :a84b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/str_format/bind.h:::29c:
or/usr/local/clang/include/absl/strings/internal/str_format/parser.hd:_227i:n11t:e rwarning: n'enable_if' is a clang extension [-Wgcc-compat]a
l::C  o227r | d R e p *   a b s l _ennualbllaeb_lief (Csotrrd_:f:oIrnmlaitn_eiRnetpe:r:ncalle:a:rE(n)s u{r
e      C| o                                     ^n
st/usr/local/clang/include/absl/base/nullability.he:x257p:r23(:f onote: rexpanded from macro 'absl_nullable'm
at  )257, | 
#      d| e          ^f
ine abs/usr/local/clang/include/absl/strings/internal/str_format/parser.hl:_229n:u11l:l awarning: b'enable_if' is a clang extension [-Wgcc-compat]l
e _  N229u | l l a b l e 
        |                        ^ 
enable_if(str_format_internal::ValidFormatImpl<C...>(forIn file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
mat),
      |           ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2region.cc../src/s2/s2point.h::1827:
:
In file included from In file included from ../src/s2/s2region.h../src/s2/s2coder.h::2423:
:
In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/status/status.h28::
725In file included from :../src/s2/s2point.h38::27 :
In file included from warning: ../src/s2/s2coder.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h725: | 29 :
 In file included from s/usr/local/clang/include/absl/strings/cord.ht:a82t:
iIn file included from c/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :s23t:
aIn file included from t/usr/local/clang/include/absl/crc/crc32c.hu:s32_:
i/usr/local/clang/include/absl/strings/str_format.hn:t860e:r43n:a lwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
Stat  u860s | R e pf*r iaebnsdl _vnooindn uAlbls lPFroerpmaarteFTlouMsohd(iFfoyr(m
a      t| S                                     ^i
nk* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | s#idnekf,i
n      e|                                            ^a
bsl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27In file included from :
s2/s2region.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2region.h:/usr/local/clang/include/absl/status/status.h24::
732In file included from :../src/s2/s1angle.h29::28 :
In file included from warning: ../src/s2/s2point.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23  :
732In file included from  | /usr/local/clang/include/absl/status/status.h : 67s:
tIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.ht:i29c:
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:n82s:
tIn file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hs:t23d:
:In file included from :/usr/local/clang/include/absl/crc/crc32c.hs:t32r:
i/usr/local/clang/include/absl/strings/str_format.hn:g867*: 60a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn  u867l | l   EemxpptlyiSctirti nFgo(r)m;a
t      S| i                            ^n
k(s/usr/local/clang/include/absl/base/nullability.ht:r241_:f22o:r mnote: aexpanded from macro 'absl_nonnull't
_i  n241t | e#rdneafli:n:eF oarbmsalt_SnionnknIumlpll *_ Naobnsnlu_lnlo
n      n| u                     ^l
l s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2shape_index_buffered_region.ccd:e18f:
iIn file included from ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region_coverer.cc:24:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:23:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2shape_index_measures.ccn:n18u:
lIn file included from l../src/s2/s2shape_index_measures.h :_25N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 25                     ^:

In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37:In file included from  s2/s2shape_index.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h   :4921 | :
iIn file included from n/usr/local/clang/include/absl/log/check.ht: 37R:
eIn file included from g/usr/local/clang/include/absl/log/internal/check_impl.hi:s21t:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_op.hA:n41d:
IIn file included from n/usr/local/clang/include/absl/log/internal/strip.hi:t26i:
aIn file included from l/usr/local/clang/include/absl/log/internal/log_message.hi:z53e:
(/usr/local/clang/include/absl/types/source_location.hV:L150o:g40S:i twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s150l | _ n o n n u l l   v ) ; 
        |                                      ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu lfli l_eN_onnanmuel)l

            | |                                        ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2shape_index_measures.cc                     ^:
18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63In file included from  | s2/s2shape_index.cc : 18e:
xIn file included from p../src/s2/s2shape_index.hl:i57c:
iIn file included from t../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht:e37x:
pIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.h :V21L:
oIn file included from g/usr/local/clang/include/absl/log/internal/check_op.hS:i41t:
eIn file included from (/usr/local/clang/include/absl/log/internal/strip.hc:o26n:
sIn file included from t/usr/local/clang/include/absl/log/internal/log_message.h :c53h:
a/usr/local/clang/include/absl/types/source_location.hr:*165 :a15b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u165l | l   fc)o
n      s| t                                          ^ 
cha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld effiilnee_ naabmsel__ n=o n"n"u;l
l       | _              ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2shape_index_measures.cc#:d18e:
fIn file included from i../src/s2/s2shape_index_measures.hn:e25 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n25u:
lIn file included from l../src/s2/util/coding/coder.h :_36N:
oIn file included from n../src/s2/base/casts.hn:u34l:
lIn file included from 
/usr/local/clang/include/absl/log/log.h      :| 209                     ^:

In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const In file included from cs2/s2shape_index.cch:a18r:
*In file included from  ../src/s2/s2shape_index.ha:b57s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
cIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:s21t:
 In file included from f/usr/local/clang/include/absl/log/internal/check_op.hi:l41e:
_In file included from ;/usr/local/clang/include/absl/log/internal/strip.h
:      26| :
              ^/usr/local/clang/include/absl/log/internal/log_message.h
:80:/usr/local/clang/include/absl/base/nullability.h26::241 :warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'   
80 |    241  | L#odgeMfeisnsea gaeb(sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlo
n      n| u                     ^l
l file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAIn file included from Ls2/s2shape_index_measures.cc_:D18E:
FIn file included from I../src/s2/s2shape_index_measures.hN:E25_:
MIn file included from A../src/s2/s1angle.hK:E28_:
CIn file included from H../src/s2/s2point.hE:C25K:
_In file included from O../src/s2/util/coding/coder.hP:_36S:
TIn file included from R../src/s2/base/casts.hI:N34G:
_In file included from E/usr/local/clang/include/absl/log/log.hX:T209E:
RIn file included from N/usr/local/clang/include/absl/log/internal/log_impl.h(:c22o:
nIn file included from s/usr/local/clang/include/absl/log/internal/log_message.ht: 47c:
hIn file included from a/usr/local/clang/include/absl/log/internal/structured_proto.hr:*27 :
aIn file included from b/usr/local/clang/include/absl/log/internal/proto.hs:l34_:
no/usr/local/clang/include/absl/types/span.hn:n212u:l22l:) ;warning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]      
|                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:  241212: | 22 :  unote: sexpanded from macro 'absl_nonnull'i
ng   241p | o#idnetfeirn e=  aTb*s la_bnsoln_nnuullll a_bNiolnintuyl_lu
n      k| n                     ^o
wn;
      |                      ^In file included from 
s2/s2shape_index.cc:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2shape_index.h::28957::
34In file included from :../src/s2/base/logging.h :note: 21expanded from macro 'absl_nullability_unknown':

In file included from /usr/local/clang/include/absl/log/check.h:  37289:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e460 :a66b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
u/usr/local/clang/include/absl/base/nullability.hl:l241a:b22i:l inote: texpanded from macro 'absl_nonnull'y
_u  n241k | n#odwenf i_nNeu lalb_suln_snpoencniuflile d_
N      o| n                                 ^n
ull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from In file included from ../src/s2/s2shape_index.hs2/s2shape_index_measures.cc::5718:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2shape_index_measures.h::2125:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s1angle.h::3728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2point.h::2125:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/util/coding/coder.h460::361:
:In file included from  ../src/s2/base/casts.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]34
:
In file included from /usr/local/clang/include/absl/log/log.h:  209460:
 | In file included from A/usr/local/clang/include/absl/log/internal/log_impl.hB:S22L:
_In file included from L/usr/local/clang/include/absl/log/internal/log_message.hO:G47_:
IIn file included from N/usr/local/clang/include/absl/log/internal/structured_proto.hT:E27R:
NIn file included from A/usr/local/clang/include/absl/log/internal/proto.hL:_34D:
E/usr/local/clang/include/absl/types/span.hF:I213N:E34_:M Awarning: Ktype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]E
_CH  E213C | K _ OuPs_iSnTgR IcNoGn_sEtX_TpEoRiNn(tceorn s=t  ccohnasrt*  Ta*b salb_snlo_nnnuulllla)b;i
l      i| t^y
_u/usr/local/clang/include/absl/log/internal/check_op.hn:k450n:o25w:n ;note: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      
|                                  ^  
450 | /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :  xnote: ,expanded from macro 'absl_nullability_unknown' 
x,   289c | o#ndsetf icnhea ra*b salb_snlu_lnloanbniullilt)y
_      u| n                        ^k
no/usr/local/clang/include/absl/base/nullability.hw:n241 :_22N:u lnote: lexpanded from macro 'absl_nonnull'_
un  s241p | e#cdieffiiende
       a| b                                 ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       constIn file included from  s2/s2shape_index_measures.ccT:118&:
 In file included from v../src/s2/s2shape_index_measures.h1:,25 :
cIn file included from o../src/s2/s1angle.hn:s28t:
 In file included from T../src/s2/s2point.h2:&25 :
vIn file included from 2../src/s2/util/coding/coder.h,: 36c:
oIn file included from n../src/s2/base/casts.hs:t34 :
cIn file included from h/usr/local/clang/include/absl/log/log.ha:r209*:
 In file included from a/usr/local/clang/include/absl/log/internal/log_impl.hb:s22l:
_In file included from n/usr/local/clang/include/absl/log/internal/log_message.ho:n47n:
uIn file included from l/usr/local/clang/include/absl/log/internal/structured_proto.hl: 27e:
xIn file included from p/usr/local/clang/include/absl/log/internal/proto.hr:t34e:
xt/usr/local/clang/include/absl/types/span.h): 733{: 31 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]\

      |                                               ^
  /usr/local/clang/include/absl/base/nullability.h733: | 241c:o22n:s tnote: eexpanded from macro 'absl_nonnull'x
pr   241S | p#adne<fTi>n eM aakbesSlp_anno(nTn*u lalb s_lN_onnunlullalb
l      e|                       ^p
tr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:In file included from 18s2/s2shape_index_measures.cc:
:In file included from 18../src/s2/s2shape_index.h:
:In file included from 57../src/s2/s2shape_index_measures.h:
:In file included from 25../src/s2/base/logging.h:
:In file included from 21../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2point.h:
:In file included from 25/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/util/coding/coder.h:
:/usr/local/clang/include/absl/log/internal/check_op.h36::
502In file included from :../src/s2/base/casts.h1::34 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/log.h
:209/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 497/usr/local/clang/include/absl/log/internal/log_impl.h::3222::
 In file included from note: /usr/local/clang/include/absl/log/internal/log_message.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:  27497:
 | In file included from  /usr/local/clang/include/absl/log/internal/proto.h :i34n:
l/usr/local/clang/include/absl/types/span.hi:n739e: 21c:o nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
expr   739c | oSnpsatn <cTh>a rM*a kaebSspla_nn(uTl*l aabblsel _nnaumlel#a#bIlmep lb(e g i n   A B S L _ A T T R I B U T E _\L
I      F| E                               ^T
IM/usr/local/clang/include/absl/base/nullability.hE:_257B:O23U:N Dnote: ,expanded from macro 'absl_nullable'

      |                       ^257
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | u#ldleafbilnee  _aNbuslll_anbullel
a      b| l                      ^e
 _NullableIn file included from 
s2/s2shape_index.cc      :| 18                      ^:

In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2shape_index_measures.cc::50218::
1In file included from :../src/s2/s2shape_index_measures.h :warning: 25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.h::28498:
:In file included from 35../src/s2/s2point.h:: 25note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/util/coding/coder.h:36:
In file included from   ../src/s2/base/casts.h498: | 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
iIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.ht: 22v:
1In file included from ,/usr/local/clang/include/absl/log/internal/log_message.h :i47n:
tIn file included from  /usr/local/clang/include/absl/log/internal/structured_proto.hv:227,:
 In file included from c/usr/local/clang/include/absl/log/internal/proto.ho:n34s:
t/usr/local/clang/include/absl/types/span.h :c740h:a21r:*  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_  n740o | n n u l l   e x p r t e x t )   {  T *   a b s l _ n u l l a b l e  \e
n      d| )                                  ^ 
no/usr/local/clang/include/absl/base/nullability.he:x241c:e22p:t  note: {expanded from macro 'absl_nonnull'

      |                       ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e257f:i23n:e  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln e_ Naobnsnlu_lnlu
l      l| a                     ^b
le _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:24:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:24:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unkIn file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
367 warnings generated.
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from :37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shapeutil_build_polygon_boundaries.cc -o s2/s2shapeutil_build_polygon_boundaries.o
),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const CondiIn file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
tion* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
452 warnings generated.
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullabIn file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:57:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
le _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shapeutil_coding.cc -o s2/s2shapeutil_coding.o
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ In file included from =s2/s2shape_index_buffered_region.cc :n18u:
lIn file included from l../src/s2/s2shape_index_buffered_region.hp:t28r:
;In file included from 
../src/s2/s2cell_union.h      :| 29                                  ^:

In file included from /usr/local/clang/include/absl/flags/flag.h:/usr/local/clang/include/absl/base/nullability.h40::
257:23/usr/local/clang/include/absl/flags/commandlineflag.h:: 163:note: 56expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #def  i163n | e   abbosoll_ nPualrlsaebFlreo m_(Naublslla:b:lset
r      i| n                      ^g
_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWoIn file included from rs2/s2region.ccd:(18
:
      In file included from | ../src/s2/s2region.h                       ^:
24:
In file included from ../src/s2/s1angle.h:/usr/local/clang/include/absl/base/nullability.h28::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :a655b:s39l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l655  | _ N o n neuxlpll
i      c| i                     ^t
 CharIterIn file included from as2/s2shape_index_buffered_region.cct:o18r:
(In file included from c../src/s2/s2shape_index_buffered_region.ho:n28s:
tIn file included from  ../src/s2/s2cell_union.hC:o29r:
dIn file included from */usr/local/clang/include/absl/flags/flag.h :a42b:
sIn file included from l/usr/local/clang/include/absl/flags/internal/flag.h_:n30o:
n/usr/local/clang/include/absl/base/call_once.hn:u53l:l22 :c owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
)
         | 53                                      ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241a:b22s:l :note: :expanded from macro 'absl_nonnull'o
nc  e241_ | f#ldaegf*i naeb salb_snlo_nnnounlnlu lfll a_gN)o;n
n      u| l                     ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2shape_index_buffered_region.cce:f18i:
nIn file included from e../src/s2/s2shape_index_buffered_region.h :a28b:
sIn file included from l../src/s2/s2cell_union.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/flags/flag.hu:l42l:
 In file included from _/usr/local/clang/include/absl/flags/internal/flag.hN:o30n:
n/usr/local/clang/include/absl/base/call_once.hu:l96l:
33      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomIn file included from is2/s2region.ccc:<18u:
iIn file included from n../src/s2/s2region.ht:3242:
_In file included from t../src/s2/s1angle.h>:*28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :b67a:
sIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h_:i29n:
t/usr/local/clang/include/absl/strings/cord.he:r674n:a37l:: :warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
ntro  l674W | o r ds(t
a      t| i                                ^c
 vo/usr/local/clang/include/absl/base/nullability.hi:d241 :A22d:v anote: nexpanded from macro 'absl_nonnull'c
e(  C241h | a#rdIetfeirnaet oarb*s la_bnsoln_nnuolnln u_lNlo nintu,l ls
i      z| e                     ^_
t n_bytes)In file included from ;s2/s2shape_index_buffered_region.cc
:      18| :
                                    ^In file included from 
../src/s2/s2shape_index_buffered_region.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2cell_union.h::2229::
 In file included from /usr/local/clang/include/absl/flags/flag.hnote: :expanded from macro 'absl_nonnull'42
:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h  :24130 | :
#/usr/local/clang/include/absl/base/call_once.hd:e97f:i18n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl   _97n | o n n u l l  o_nNcoen_nfullalg
*       | a                     ^b
sl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2shape_index_buffered_region.cc :_18N:
oIn file included from n../src/s2/s2shape_index_buffered_region.hn:u28l:
lIn file included from 
../src/s2/s2cell_union.h      :| 29                     ^:

In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowIn file included from Ls2/s2region.cce:v18e:
lIn file included from C../src/s2/s2region.ha:l24l:
OIn file included from n../src/s2/s1angle.hc:e28(:
aIn file included from b../src/s2/s2point.hs:l27::
:In file included from o../src/s2/s2coder.hn:c23e:
_In file included from f/usr/local/clang/include/absl/status/status.hlag:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
*/usr/local/clang/include/absl/strings/cord.h:736: 17:a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n736 | n u l l  cfolnasgt,  CCoarldl*a bablsel&_&n ofnnn,u
l      l|                                         ^c
ord_;/usr/local/clang/include/absl/base/nullability.h
:      241| :                ^22
: note: /usr/local/clang/include/absl/base/nullability.h:expanded from macro 'absl_nonnull'241
:22:   note: 241expanded from macro 'absl_nonnull' | 
#  d241 | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                           ^| 
                     ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |    In file included from  s2/s2shape_index_measures.ccC:a18l:
lIn file included from O../src/s2/s2shape_index_measures.hn:c25e:
IIn file included from m../src/s2/s1angle.hp:l28(:
sIn file included from t../src/s2/s2point.hd::25::
aIn file included from t../src/s2/util/coding/coder.ho:m36i:
cIn file included from <../src/s2/base/casts.hu:i34n:
tIn file included from 3/usr/local/clang/include/absl/log/log.h2:_209t:
>In file included from */usr/local/clang/include/absl/log/internal/log_impl.h :a22b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_message.h_:n53o:
nn/usr/local/clang/include/absl/types/source_location.hu:l113l: 19c:o nwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ol,
        113|  |                                         ^ 
   /usr/local/clang/include/absl/base/nullability.h :In file included from  241cs2/s2region.cc:o:22n18:s:
t  In file included from note: c../src/s2/s2region.hexpanded from macro 'absl_nonnull'h:a
24r:
  *In file included from 241 ../src/s2/s1angle.ha | b:#s28dl:
e_In file included from nf../src/s2/s2point.hoinn:neu27 l:
la In file included from fb../src/s2/s2coder.hisl:le23__:
nnIn file included from oa/usr/local/clang/include/absl/status/status.hnm:en67 u:
=lIn file included from  l_/usr/local/clang/include/absl/status/internal/status_internal.h _:b_29uN:
io/usr/local/clang/include/absl/strings/cord.hln:tni898un:l_27lF:
I       L| warning: E                     ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
)
) {
        898|  |                   ^ 
 fr/usr/local/clang/include/absl/base/nullability.hi:e241n:d22 :c onote: nexpanded from macro 'absl_nonnull's
t   C241o | r#ddzeIfnifnoe*  aabbssll__nnounlnlualbll e_ NGoentnCuolrld
z      I| n                     ^f
oForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nulIn file included from ls2/s2shape_index_measures.cca:b18l:
eIn file included from  ../src/s2/s2shape_index_measures.h_:N25u:
lIn file included from l../src/s2/s1angle.ha:b28l:
eIn file included from 
../src/s2/s2point.h      :| 25                      ^:

In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h693: warning53s:
 generated.
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from In file included from ../src/s2/util/coding/coder.hs2/s2region.cc::3618:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2region.h::3424:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h../src/s2/s1angle.h::20928:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s2point.h::2227:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2coder.h::5323:
:
In file included from /usr/local/clang/include/absl/types/source_location.h/usr/local/clang/include/absl/status/status.h::14267::
25In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/strings/cord.h:927:43  :142  | warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
cons  t927e | x p r   c o n s t   c h a r *   a b s l _ n o n n u l l   f u n c tCioornd_Rneapm*e (a)b sclo_nnsutl lnaobelxec erpetp ){;

            | |                         ^                                          ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::25722::23 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullable'

    241257 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbll e_ N_oNnunlullalb
l      e| 
                     ^      
|                       ^
In file included from In file included from s2/s2shape_index_measures.ccs2/s2region.cc::1818:
:
In file included from In file included from ../src/s2/s2shape_index_measures.h../src/s2/s2region.h::2524:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1angle.h::2828:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2527:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/status/status.h::3467:
:
In file included from In file included from /usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/status/internal/status_internal.h::20929:
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/strings/cord.hIn file included from ::s2/s2shape_index_buffered_region.cc22929::
:18In file included from 26:
/usr/local/clang/include/absl/log/internal/log_message.h:In file included from : ../src/s2/s2shape_index_buffered_region.h53:warning: :
28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
/usr/local/clang/include/absl/types/source_location.h
In file included from :../src/s2/s2cell_union.h150::  2940929:
: | In file included from   /usr/local/clang/include/absl/flags/flag.hwarning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 42 
:
vIn file included from o/usr/local/clang/include/absl/flags/internal/flag.h  i:150d30 |  :
 S w/usr/local/clang/include/absl/base/call_once.ha :p 194( :I 31 n: l  i warning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
 R e p   *194    |  ai bn s ll i_ n neo  n snctuodnl:slt:  arcthhosamr)i*; ca
<b      us| li_                         ^nn
otn3n/usr/local/clang/include/absl/base/nullability.hu2:l_241lt: >22*f:i  alnote: beexpanded from macro 'absl_nonnull's_
nla  m_241en) | 
o#      nd| neu                                       ^fl
iln /usr/local/clang/include/absl/base/nullability.heC :oa241nb:ts22rl:o_ lnnote: Woexpanded from macro 'absl_nonnull'on
rndu  (l241
l |        #| _d                              ^eN
foinnn/usr/local/clang/include/absl/base/nullability.heu :alb241sl:
l22      _:n| o                      ^n
note: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nIn file included from os2/s2region.ccn:n18u:
lIn file included from l../src/s2/s2region.h :_24N:
oIn file included from n../src/s2/s1angle.hnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.hIn file included from :s2/s2shape_index_measures.cc42::
18In file included from :
/usr/local/clang/include/absl/flags/internal/flag.hIn file included from :../src/s2/s2shape_index_measures.h30::
25:
/usr/local/clang/include/absl/base/call_once.hIn file included from :../src/s2/s1angle.h195::2816:
:In file included from  ../src/s2/s2point.h:warning: 25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/coding/coder.h:  36195:
 | In file included from  ../src/s2/base/casts.h : 34 :
oIn file included from n/usr/local/clang/include/absl/log/log.hc:e209_:
fIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.ha:g22*:
 In file included from a/usr/local/clang/include/absl/log/internal/log_message.hb:s53l:
_/usr/local/clang/include/absl/types/source_location.hn:o165n:n15u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
lag  )165  | { 
       c| o               ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ef ialbes_ln_anmoen_n u=l l" "_;N
o      n| n              ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* a:bs28l:
_In file included from n../src/s2/s2point.hu:l27l:
aIn file included from b../src/s2/s2coder.hl:e23 :
 In file included from v/usr/local/clang/include/absl/status/status.h): 67{:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                               ^29
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::932257::1723::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable'

  257 |   #932d | e f i n ec oanbsstl _cnhualrl*a balbes l__Nnuullllaabbllee
       d| a                      ^t
a() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2shape_index_measures.cc
:18:
  In file included from 257../src/s2/s2shape_index_measures.h | :#25d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s25l:
_In file included from n../src/s2/util/coding/coder.hu:l36l:
aIn file included from b../src/s2/base/casts.hl:e34 :
_In file included from N/usr/local/clang/include/absl/log/log.hu:l209l:
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hl:e22
:
      | /usr/local/clang/include/absl/log/internal/log_message.h                      ^:
161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operIn file included from as2/s2region.cct:o18r:
<In file included from <../src/s2/s2region.h(:c24o:
nIn file included from s../src/s2/s1angle.ht: 28v:
oIn file included from i../src/s2/s2point.hd:*27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29 :
v/usr/local/clang/include/absl/strings/cord.h): 934{:
31      :|                                       ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:257:23:   934 | note:  expanded from macro 'absl_nullable' 
    v257o | i#dd esfeitn_ed aatbas(lc_onnusltl acbhlaer *_ Naublslla_bnluel
l      a| b                      ^l
e data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2shape_index_measures.cc935::1811:
:In file included from  ../src/s2/s2shape_index_measures.h:warning: 25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s1angle.h:28:
  In file included from 935../src/s2/s2point.h | : 25 :
 In file included from  ../src/s2/util/coding/coder.hc:h36a:
rIn file included from *../src/s2/base/casts.h :a34b:
sIn file included from l/usr/local/clang/include/absl/log/log.h_:n209o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hu:l22l:
 /usr/local/clang/include/absl/log/internal/log_message.hs:e179t:_35d:a twarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension](
siz  e179_ | t   nL)o;g M e/s/s aWgrei&t eo pdeartaat otro< <t(hwec hraers_utl*t 
a      b| s          ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull'v
);  
241       | | #                                  ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n257e: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle f_iNnoen naublsll
_      n| u                     ^l
lable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_intIn file included from es2/s2shape_index_measures.ccr:n18a:
lIn file included from :../src/s2/s2shape_index_measures.h::C25o:
rIn file included from d../src/s2/s1angle.hR:e28p:
*In file included from  ../src/s2/s2point.ha:b25s:
lIn file included from _../src/s2/util/coding/coder.hn:u36l:
lIn file included from a../src/s2/base/casts.hb:l34e:
 In file included from t/usr/local/clang/include/absl/log/log.hr:e209e:
(In file included from )/usr/local/clang/include/absl/log/internal/log_impl.h :c22o:
n/usr/local/clang/include/absl/log/internal/log_message.hs:t190;:
42      :|                                    ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:23  :190  | note:  expanded from macro 'absl_nullable' 
Lo  g257M | e#sdseafgien&e  oapbesrla_tnourl<l<a(bslted :_:Nousltlraebalme&
       (| *                      ^a
bsl_nonnull m)(std:In file included from :s2/s2region.cco:s18t:
rIn file included from e../src/s2/s2region.ha:m24&:
 In file included from o../src/s2/s1angle.hs:)28):
;In file included from 
../src/s2/s2point.h      :| 27                                         ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/status/status.h22::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull':
29:
  /usr/local/clang/include/absl/strings/cord.h241: | 938#:d35e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s938l | _ n o n naublsll :_:Ncoonrndu_liln
t      e| r                     ^n
al::CordRep* absl_nonnull as_treeIn file included from (s2/s2shape_index_measures.cc): 18c:
oIn file included from n../src/s2/s2shape_index_measures.hs:t25;:

In file included from       ../src/s2/s1angle.h| :                                  ^28
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::25241:
:In file included from 22../src/s2/util/coding/coder.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/casts.h
:34:
  In file included from 241/usr/local/clang/include/absl/log/log.h | :#209d:
eIn file included from f/usr/local/clang/include/absl/log/internal/log_impl.hi:n22e:
 /usr/local/clang/include/absl/log/internal/log_message.ha:b191s:l43_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   _191N | o n nLuolglM
e      s| s                     ^a
ge& operator<<In file included from (s2/s2region.ccs:t18d:
:In file included from :../src/s2/s2region.hi:o24s:
_In file included from b../src/s2/s1angle.ha:s28e:
&In file included from  ../src/s2/s2point.h(:*27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hm:)29(:
s/usr/local/clang/include/absl/strings/cord.ht:d939:::17i:o swarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
ase  &939  | o s ) ) ;c
o      n| s                                          ^t
 c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf ianse_ cahbasrls_(n)o ncnounlslt ;_
N      o| n                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2shape_index_measures.cc
:      18| :
                     ^In file included from 
../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:In file included from 22s2/s2region.cc:
:18/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 306../src/s2/s2region.h::324::
 In file included from ../src/s2/s1angle.hwarning: :28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:27:
  In file included from 306../src/s2/s2coder.h | : 23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 957s:t27d:: :warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ique  _957p | t r < L ovgoMieds sSaegteTDraee(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* tabsla_>n odnantual_l; 
r      e| p  ^,
 cons/usr/local/clang/include/absl/base/nullability.ht: 241I:n22l:i nnote: eexpanded from macro 'absl_nonnull'D
ata  &241  | p#adreefnitn,e
       a| b                              ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shapeutil_contains_brute_force.cc -o s2/s2shapeutil_contains_brute_force.o
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2shape_index_measures.ccn:n18u:
lIn file included from l../src/s2/s2shape_index_measures.h
:      25| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     In file included from cs2/s2region.cco:n18s:
tIn file included from  ../src/s2/s2region.hw:c24h:
aIn file included from r../src/s2/s1angle.h_:t28*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:s29t:
&/usr/local/clang/include/absl/strings/cord.h :v994):;30
:       | warning:                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h  :994257 | : 23 :   note: vexpanded from macro 'absl_nullable'o
id   257C | o#pdyeTfoi(nset da:b:sslt_rniunlgl*a balbes l__Nnuolnlnaubllle 
d      s| t                      ^)
 const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.hs2/s2region.cc::2218:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2region.h::32124::
52In file included from :../src/s2/s1angle.h :28warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h321: | 23i:
nIn file included from l/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from L/usr/local/clang/include/absl/status/internal/status_internal.ho:g29M:
e/usr/local/clang/include/absl/strings/cord.hs:s999a:g28e:&  warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
gMe  s999s | a g e : :voopiedr aCtoopry<T<o(Awrcrhaayr(_cth*a ra*b salb_snlu_lnloanbnluel lv )d s{t
)       | c                                                   ^o
ns/usr/local/clang/include/absl/base/nullability.ht:;257
:      23| :                           ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2shape_index_measures.ccf:i18n:
eIn file included from  ../src/s2/s2shape_index_measures.ha:b25s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:l25e:
 In file included from _../src/s2/util/coding/coder.hN:u36l:
lIn file included from a../src/s2/base/casts.hb:l34e:

In file included from       /usr/local/clang/include/absl/log/log.h| :                      ^209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |  In file included from  s2/s2region.ccf:r18i:
eIn file included from n../src/s2/s2region.hd: 24v:
oIn file included from i../src/s2/s1angle.hd: 28A:
bIn file included from s../src/s2/s2point.hl:F27o:
rIn file included from m../src/s2/s2coder.ha:t23F:
lIn file included from u/usr/local/clang/include/absl/status/status.hs:h67(:
SIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hr:i29n:
g/usr/local/clang/include/absl/strings/cord.hi:f1017y:S51i:n kwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl _1017n | o n n u lvlo isdi nske,t
_      c| o                                             ^r
dz_/usr/local/clang/include/absl/base/nullability.hi:n241f:o22(:c onote: rexpanded from macro 'absl_nonnull'd
_i  n241t | e#rdneafli:n:eC oarbdszlI_nnfoon*n ualbls l__Nnoonnnnuullll
       c| o                     ^r
dz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMes
s      a| g                                            ^e
Quie/usr/local/clang/include/absl/base/nullability.ht:l241y:F22a:t anote: lexpanded from macro 'absl_nonnull'(
con  s241t |  #cdheafri*n ea basbls_ln_onnonnunlull lf i_lNeo,n
n      u| l                                     ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2region.ccu:l18l:

In file included from       ../src/s2/s2region.h| :                     ^24
:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shape_index_measures.cc: 181054:
 | In file included from  ../src/s2/s2shape_index_measures.h : 25 :
 In file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from :../src/s2/s2point.h::c25o:
rIn file included from d../src/s2/util/coding/coder.h_:i36n:
tIn file included from e../src/s2/base/casts.hr:n34a:
lIn file included from :/usr/local/clang/include/absl/log/log.h::C209o:
rIn file included from d/usr/local/clang/include/absl/log/internal/log_impl.hR:e22p:
*/usr/local/clang/include/absl/log/internal/log_message.h :a456b:s38l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l456  | r e pL,o
g      M| e                                    ^s
sa/usr/local/clang/include/absl/base/nullability.hg:e241Q:u22i:e tnote: lexpanded from macro 'absl_nonnull'y
Fa  t241a | l#(dceofnisnte  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln uflill
e      ,|                       ^i
nt line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2region.cc :_18N:
oIn file included from n../src/s2/s2region.hn:u24l:
lIn file included from 
../src/s2/s1angle.h      :| 28                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2shape_index_measures.cc67::
18In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2shape_index_measures.h29::
25:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s1angle.h1061::2834:
:In file included from  ../src/s2/s2point.h:warning: 25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/coding/coder.h:36:
 In file included from 1061../src/s2/base/casts.h | : 34 :
vIn file included from o/usr/local/clang/include/absl/log/log.hi:d209 :
CIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hp:y22T:
o/usr/local/clang/include/absl/log/internal/log_message.hA:r457r:a38y:S lwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
Pat  h457( | c h a r *   a b s l _ n o n n u l l   d s t )   c ocnosnts;t
       c| h                                 ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #fdaeifliunree _ambssgl)_
n      o| n                                     ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:28:
In file included from ../src/s2/s2cell_union.h:29:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable repIn file included from ,s2/s2shape_index_measures.cc
:      18| :
                                                     ^In file included from 
../src/s2/s2shape_index_measures.h:25:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s1angle.h257::2823:
:In file included from  ../src/s2/s2point.h:note: 25expanded from macro 'absl_nullable':

In file included from ../src/s2/util/coding/coder.h  :25736 | :
#In file included from d../src/s2/base/casts.he:f36i:
nIn file included from e../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.ha:b21l:
e /usr/local/clang/include/absl/log/internal/check_op.h_:N180u:l42l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      |                       ^
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2region.ccN:o18n:
nIn file included from u../src/s2/s2region.hl:l24
:
      In file included from | ../src/s2/s1angle.h                     ^:
28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2shape_index_measures.cc:
:18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1301../src/s2/s2shape_index_measures.h::5625::
 In file included from ../src/s2/s1angle.hwarning: :28type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:25:
In file included from  ../src/s2/util/coding/coder.h1301: | 36i:
nIn file included from l../src/s2/base/casts.hi:n36e:
 In file included from v../src/s2/base/logging.ho:i21d:
 In file included from C/usr/local/clang/include/absl/log/check.ho:r37d:
:In file included from :/usr/local/clang/include/absl/log/internal/check_impl.hI:n21l:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e181R:e25p:: :warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
mmit  T181r | e e ( c ocnosnts tC oarbdsRle:p:*S taabtsuls_*n ualblsalb_lneo nonludl_lr espt,a
t      u| s                                                       ^,
 co/usr/local/clang/include/absl/base/nullability.hn:s257t: 23c:h anote: rexpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bpsrle_fniuxl)l;a
b      l| e                        ^ 
_N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #define abIn file included from ss2/s2region.ccl:_18n:
oIn file included from n../src/s2/s2region.hn:u24l:
lIn file included from  ../src/s2/s1angle.h_:N28o:
nIn file included from n../src/s2/s2point.hu:l27l:

In file included from       ../src/s2/s2coder.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50In file included from :s2/s2shape_index_measures.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2shape_index_measures.h:25:
In file included from  ../src/s2/s1angle.h1302: | 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 181 : 58 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ord  R181e | p *   a bcsoln_snto nanbuslll: :rSetpa,t
u      s| *                                                 ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   s241t | a#tduesf,i nceo nasbts lc_hnaorn*n ualbls l__Nnoonnnnuullll
       p| r                     ^e
fix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from In file included from ../src/s2/s2region.hs2/s2shape_index_measures.cc::2418:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2shape_index_measures.h::2825:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s1angle.h::2728:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2point.h::2325:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/util/coding/coder.h::6736:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/casts.h::2936:
:
In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/logging.h::131221::
38In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h :1312189 | :i28n:l iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l189: | :icnolridn_ei nctoenrsnta la:b:sClo:r:dSRteapt*u sa*b salb_snlu_lnloanbnluel lC oArsdS:t:aItnulsi(nceoRnespt: :acblsela:r:(S)t a{t
u      s| &                                     ^ 
s)/usr/local/clang/include/absl/base/nullability.h :{257
:      23| :                           ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::In file included from Ss2/s2region.cct:a18t:
uIn file included from s../src/s2/s2region.h*: 24a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.hA:s23S:
tIn file included from a/usr/local/clang/include/absl/status/status.ht:u67s:
(In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
t/usr/local/clang/include/absl/strings/cord.h :a1321b:s48l:: :warning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
atusO r1321< | Ti>n&l isn)e  {v
o      i| d                    ^ 
Co/usr/local/clang/include/absl/base/nullability.hr:d241:::22I:n lnote: iexpanded from macro 'absl_nonnull'n
eR  e241p | :#:dCeofpiynTeo Aarbrsaly_(ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^d
st) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2shape_index_measures.ccl:
18      :
| In file included from                      ^../src/s2/s2shape_index_measures.h
:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, In file included from cs2/s2region.cco:n18s:
tIn file included from  ../src/s2/s2region.hc:h24a:
rIn file included from *../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
)In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                        ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:22/usr/local/clang/include/absl/strings/cord.h:: 1505:note: 41expanded from macro 'absl_nonnull':
   warning: 241 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defin e1505  | aibnslli_nneo nvnouildl  C_oNrodn:n:uClolp
y      T| o                     ^A
rrayImpl(char* absl_nonnull In file included from ds2/s2shape_index_measures.ccs:t18):
 In file included from c../src/s2/s2shape_index_measures.ho:n25s:
tIn file included from  ../src/s2/s1angle.h{:
28      :
| In file included from                                         ^../src/s2/s2point.h
:25:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36241:
:In file included from 22../src/s2/base/casts.h:: 36:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b461s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   _461N | oAnBnSuLl_lL
O      G| _                     ^I
NTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const charIn file included from *s2/s2region.cc :a18b:
sIn file included from l../src/s2/s2region.h_n:onnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnul24l:

In file included from       ../src/s2/s1angle.h| :                     ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from In file included from s2/s2shape_index_measures.cc../src/s2/s2coder.h::1823:
:
In file included from In file included from ../src/s2/s2shape_index_measures.h/usr/local/clang/include/absl/status/status.h::2567:
:
In file included from In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/status/internal/status_internal.h::2829:
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::251514:
:In file included from 29../src/s2/util/coding/coder.h:: 36:
warning: In file included from ../src/s2/base/casts.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/base/logging.h:21 :
1514In file included from  | /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from c/usr/local/clang/include/absl/log/internal/check_impl.ho:r21d:
_/usr/local/clang/include/absl/log/internal/check_op.hi:n465t:e1r:n awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:Co  r465d | RAeBpS*L _aLbOsGl__InNoTnEnRuNlAlL _tDrEeFeI)N E{_
M      A| K                            ^E
_CHE/usr/local/clang/include/absl/base/nullability.hC:K241_:O22P:_ Snote: Texpanded from macro 'absl_nonnull'R
IN  G241_ | E#XdTeEfRiNn(ec oanbsstl _vnooindn*u lalb s_lN_onnonnunlull
l      )| ;                     ^

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* abIn file included from ss2/s2region.ccl:_18n:
uIn file included from l../src/s2/s2region.hl:a24b:
lIn file included from e../src/s2/s1angle.h :n28a:
mIn file included from e../src/s2/s2point.h#:#27I:
mIn file included from p../src/s2/s2coder.hl:(23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1525 : 29 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                ^
 1525/usr/local/clang/include/absl/base/nullability.h | : 257 : 23 :c onote: rexpanded from macro 'absl_nullable'd
_i  n257t | e#rdneafli:n:eC oarbdsRle_pn*u lalbasbll_en o_nNnuulllla btlree
e      )|                        ^{

      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2shape_index_measures.cc  :24118 | :
#In file included from d../src/s2/s2shape_index_measures.he:f25i:
nIn file included from e../src/s2/s1angle.h :a28b:
sIn file included from l../src/s2/s2point.h_:n25o:
nIn file included from n../src/s2/util/coding/coder.hu:l36l:
 In file included from _../src/s2/base/casts.hN:o36n:
nIn file included from u../src/s2/base/logging.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                     ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2region.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2region.h241: | 24#:
dIn file included from e../src/s2/s1angle.hf:i28n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
u/usr/local/clang/include/absl/strings/cord.hl:l1530
:      55| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2shape_index_measures.ccn:u18l:
lIn file included from 
../src/s2/s2shape_index_measures.h      :| 25                     ^:

In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2shape_index_buffered_region.ccIn file included from :../src/s2/s2point.h18::
25In file included from :
../src/s2/s2shape_index_buffered_region.hIn file included from :../src/s2/util/coding/coder.h29::
36In file included from :
../src/s2/s2closest_edge_query.hIn file included from :../src/s2/base/casts.h34::
36In file included from :
../src/s2/s2closest_edge_query_base.hIn file included from :../src/s2/base/logging.h32::
21In file included from :
/usr/local/clang/include/absl/container/btree_set.hIn file included from :/usr/local/clang/include/absl/log/check.h65::
37In file included from :
/usr/local/clang/include/absl/container/internal/btree.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h70::
21In file included from :
/usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/log/internal/check_op.h198::
504In file included from :/usr/local/clang/include/absl/strings/str_cat.h1::116 :
In file included from warning: /usr/local/clang/include/absl/strings/internal/stringify_sink.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
23:
/usr/local/clang/include/absl/strings/numbers.h:  77504: | 61A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
LOG_   I77N | T[E[RnNoAdLi_sCcHaErCdK]_]O Pb_oIoMlP LS(iCmhpelcekA_tLoEf,( a<b=s)l
:      :| s^t
ri/usr/local/clang/include/absl/log/internal/check_op.hn:g488_:v32i:e wnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL's
tr,   488f | l o aitn*l ianbes lc_onnosntneuxlplr  ocuotn)s;t
       c| h                                                            ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dneafmei#n#eI mapbls(l _ n o n n u l l   _ N o n n u l l 
       \| 
                     ^      
|                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_In file included from ns2/s2shape_index_buffered_region.ccu:l18l:
aIn file included from b../src/s2/s2shape_index_buffered_region.hl:e29 :
_In file included from N../src/s2/s2closest_edge_query.hu:l34l:
aIn file included from b../src/s2/s2closest_edge_query_base.hl:e32
:
      In file included from | /usr/local/clang/include/absl/container/btree_set.h                      ^:
65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hIn file included from :s2/s2shape_index_measures.cc23::
18:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :../src/s2/s2shape_index_measures.h88::2562:
:In file included from  ../src/s2/s1angle.h:warning: 28type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h:25:
In file included from    ../src/s2/util/coding/coder.h88: | 36[:
[In file included from n../src/s2/base/casts.ho:d36i:
sIn file included from c../src/s2/base/logging.ha:r21d:
]In file included from ]/usr/local/clang/include/absl/log/check.h :b37o:
oIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :S21i:
m/usr/local/clang/include/absl/log/internal/check_op.hp:l504e:A1t:o dwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl::489::s47t:r inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'g
_vi  e489w |   s t r ,   dcoounbslte *T 1a&b svl1_,n ocnonnusltl  To2u&t )v;2
,       | c                                                             ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  eaxbpsrlt_enxotn)n u{l l   _ N o\n
n      u| l                                              ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2shape_index_buffered_region.cco:n18n:
uIn file included from l../src/s2/s2shape_index_buffered_region.hl: 29_:
NIn file included from o../src/s2/s2closest_edge_query.hn:n34u:
lIn file included from l../src/s2/s2closest_edge_query_base.h
:      32| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2shape_index_measures.cc | :#18d:
eIn file included from f../src/s2/s2shape_index_measures.hi:n25e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl: 36_:
NIn file included from o../src/s2/base/casts.hn:n36u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: In file included from note: s2/s2shape_index_buffered_region.ccexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
18:
In file included from ../src/s2/s2shape_index_buffered_region.h:  29497:
 | In file included from  ../src/s2/s2closest_edge_query.h :i34n:
lIn file included from i../src/s2/s2closest_edge_query_base.hn:e32 :
cIn file included from o/usr/local/clang/include/absl/container/btree_set.hn:s65t:
eIn file included from x/usr/local/clang/include/absl/container/internal/btree.hp:r70 :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.hh:a116r:
*In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.ha:b23s:
l/usr/local/clang/include/absl/strings/numbers.h_:n112u:l44l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 nam  e112# | # I m p l (                                       \ 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h :i257n:t23_:t ynote: pexpanded from macro 'absl_nullable'e
*   a257b | s#ld_enfoinnneu lalb solu_tn)u;l
l      a| b                                           ^l
e /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e

      |                         ^241
 | #define aIn file included from bs2/s2shape_index_measures.ccs:l18_:
nIn file included from o../src/s2/s2shape_index_measures.hn:n25u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u25l:
lIn file included from 
../src/s2/util/coding/coder.h      :| 36                     ^:

In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2/s2shape_index_buffered_region.cc498: | 18 :
 In file included from  ../src/s2/s2shape_index_buffered_region.h : 29 :
iIn file included from n../src/s2/s2closest_edge_query.ht: 34v:
1In file included from ,../src/s2/s2closest_edge_query_base.h :i32n:
tIn file included from  /usr/local/clang/include/absl/container/btree_set.hv:265,:
 In file included from c/usr/local/clang/include/absl/container/internal/btree.ho:n70s:
tIn file included from  /usr/local/clang/include/absl/container/internal/layout.hc:h198a:
rIn file included from */usr/local/clang/include/absl/strings/str_cat.h :a116b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h_:n23o:
n/usr/local/clang/include/absl/strings/numbers.hn:u116l:l55 :e xwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
text  )116  | {                                   \ 
        |                                    ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # daebfsiln:e: ianbts1l2_8n*o nanbuslll_ n_oNnonnunlull lo
u      t| )                     ^;

      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int12In file included from 8s2/s2shape_index_measures.cc*: 18a:
bIn file included from s../src/s2/s2shape_index_measures.hl:_25n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hv:a25l:
uIn file included from e../src/s2/util/coding/coder.h,: 36in:
tIn file included from  ../src/s2/base/casts.hb:a36s:
eIn file included from )../src/s2/base/logging.h;:
21      :
| In file included from                                       ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
: /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'505
:1:   241 | warning: #type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d
efi  n505e |  AaBbSsLl__LnOoGn_nIuNlTlE R_NNAoLn_nCuHlElC
K      _| O                     ^P
_IMPL(Check_LT, <)
      In file included from | s2/s2shape_index_buffered_region.cc^:
18:
In file included from ../src/s2/s2shape_index_buffered_region.h/usr/local/clang/include/absl/log/internal/check_op.h::29488:
:In file included from 32../src/s2/s2closest_edge_query.h:: 34:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'../src/s2/s2closest_edge_query_base.h
:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h  :48865 | :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.hi:n70l:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.he: 198c:
oIn file included from n/usr/local/clang/include/absl/strings/str_cat.hs:t116e:
xIn file included from p/usr/local/clang/include/absl/strings/internal/stringify_sink.hr: 23c:
o/usr/local/clang/include/absl/strings/numbers.hn:s166t: 57c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l166_ | nbuololla bslaef en_asmter#t#oIum8p_lb(a s e ( a b s l : : s t r i n g _ v i e\w
       t| e                               ^x
t,/usr/local/clang/include/absl/base/nullability.h :u257i:n23t:8 _note: texpanded from macro 'absl_nullable'*
 a  b257s | l#_dneofninnuel la bvsall_uneu,l
l      a| b                                                        ^l
e /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e

      |                         ^241
 | #define absl_In file included from ns2/s2shape_index_measures.cco:n18n:
uIn file included from l../src/s2/s2shape_index_measures.hl: 25_:
NIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h
:      25| :
                     ^In file included from 
../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1In file included from :s2/s2shape_index_buffered_region.cc :18warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2shape_index_buffered_region.h:/usr/local/clang/include/absl/log/internal/check_op.h29::
489In file included from :../src/s2/s2closest_edge_query.h47::34 :
In file included from note: ../src/s2/s2closest_edge_query_base.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:  65489:
 | In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.hc:o198n:
sIn file included from t/usr/local/clang/include/absl/strings/str_cat.h :T1161:
&In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hv:123,:
 /usr/local/clang/include/absl/strings/numbers.hc:o168n:s59t:  Twarning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
 v2,   168c | obnosotl  cshaafre*_ satbrstlo_un1o6n_nbualsle (eaxbpsrlt:e:xstt)r i{n g _ v i e\w
       t| e                                              ^x
t,/usr/local/clang/include/absl/base/nullability.h :u241i:n22t:1 6note: _expanded from macro 'absl_nonnull't
*   a241b | s#ld_enfoinnneu lalb svla_lnuoen,n
u      l| l                                                          ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool saIn file included from fs2/s2shape_index_measures.cce:_18s:
tIn file included from r../src/s2/s2shape_index_measures.ht:o25u:
3In file included from 2../src/s2/s1angle.h_:b28a:
sIn file included from e../src/s2/s2point.h(:a25b:
sIn file included from l../src/s2/util/coding/coder.h:::36s:
tIn file included from r../src/s2/base/casts.hi:n36g:
_In file included from v../src/s2/base/logging.hi:e21w:
 In file included from t/usr/local/clang/include/absl/log/check.he:x37t:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hu:i21n:
t/usr/local/clang/include/absl/log/internal/check_op.h3:2505_:t1*:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:o497n:n32u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'v
alue  ,497
 |        |                                                            ^i
nl/usr/local/clang/include/absl/base/nullability.hi:n241e: 22c:o nnote: sexpanded from macro 'absl_nonnull't
ex  p241r |  #cdoenfsitn ec haabrs*l _anbosnln_unlull l_aNbolnen unlalm
e      #| #                     ^I
mpl(                  In file included from  s2/s2shape_index_buffered_region.cc\:
18      :
| In file included from                                ^../src/s2/s2shape_index_buffered_region.h
:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2closest_edge_query.h257::3423:
:In file included from  ../src/s2/s2closest_edge_query_base.h:note: 32expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/container/btree_set.h:  65257:
 | In file included from #/usr/local/clang/include/absl/container/internal/btree.hd:e70f:
iIn file included from n/usr/local/clang/include/absl/container/internal/layout.he: 198a:
bIn file included from s/usr/local/clang/include/absl/strings/str_cat.hl:_116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:a23b:
l/usr/local/clang/include/absl/strings/numbers.he: 172_:N59u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le
        | 172                      ^ | 
bool safeIn file included from _s2/s2shape_index_measures.ccs:t18r:
tIn file included from o../src/s2/s2shape_index_measures.hu:6254:
_In file included from b../src/s2/s1angle.ha:s28e:
(In file included from a../src/s2/s2point.hb:s25l:
:In file included from :../src/s2/util/coding/coder.hs:t36r:
iIn file included from n../src/s2/base/casts.hg:_36v:
iIn file included from e../src/s2/base/logging.hw: 21t:
eIn file included from x/usr/local/clang/include/absl/log/check.ht:,37 :
uIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:t216:
4/usr/local/clang/include/absl/log/internal/check_op.h_:t505*: 1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
n/usr/local/clang/include/absl/log/internal/check_op.ho:n498n:u35l:l  note: vexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a
lue  ,498
 |        |                                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h :i241n:t22 :v 1note: ,expanded from macro 'absl_nonnull' 
in  t241  | v#2d,e fcionnes ta bcshla_rn*o nanbuslll_ n_oNnonnunlull le
x      | p                     ^r
text) {                 \In file included from 
s2/s2shape_index_buffered_region.cc      :| 18                                  ^:

In file included from ../src/s2/s2shape_index_buffered_region.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :../src/s2/s2closest_edge_query.h22::34 :
In file included from note: ../src/s2/s2closest_edge_query_base.hexpanded from macro 'absl_nonnull':
32:
In file included from   /usr/local/clang/include/absl/container/btree_set.h241: | 65#:
dIn file included from e/usr/local/clang/include/absl/container/internal/btree.hf:i70n:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.ha:b198s:
lIn file included from _/usr/local/clang/include/absl/strings/str_cat.hn:o116n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:l23 :
_/usr/local/clang/include/absl/strings/numbers.hN:o175n:n41u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:In file included from 1s2/s2shape_index_buffered_region.cc:: 18:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2shape_index_buffered_region.h
:29:
In file included from ../src/s2/s2closest_edge_query.h  :50634 | :
AIn file included from B../src/s2/s2closest_edge_query_base.hS:L32_:
LIn file included from O/usr/local/clang/include/absl/container/btree_set.hG:_65I:
NIn file included from T/usr/local/clang/include/absl/container/internal/btree.hE:R70N:
AIn file included from L/usr/local/clang/include/absl/container/internal/layout.h_:C198H:
EIn file included from C/usr/local/clang/include/absl/strings/str_cat.hK:_116O:
PIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hI:M23P:
L/usr/local/clang/include/absl/strings/numbers.h(:C199h:e5c:k _warning: G'diagnose_if' is a clang extension [-Wgcc-compat]E
, >=  )199
 |        |  ^ 
 A/usr/local/clang/include/absl/log/internal/check_op.hB:S488L:_32I:N Tnote: Eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'R
NAL  _488N | E E Di_nMlIiNn_eS IcZoEn(sbtuefxfperr ,c oknFsats tcThoaBru*f faebrsSli_zneu)l;l
a      b| l    ^e
 n/usr/local/clang/include/absl/base/macros.ha:m251e:#18#:I mnote: pexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'l
(     251  |     _ _ a t t r i b u t e _ _ (\(
d      i| a                               ^g
no/usr/local/clang/include/absl/base/nullability.hs:e257_:i23f:( _note: _expanded from macro 'absl_nullable'b
ui  l257t | i#nd_eofbijneec ta_bssilz_en(uOlblja,b l0e)  _<N uNl,l a\b
l      e| 
                 ^      
|                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from In file included from s2/s2shape_index_buffered_region.cc../src/s2/s1angle.h::1828:
:
In file included from In file included from ../src/s2/s2shape_index_buffered_region.h../src/s2/s2point.h::2925:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h../src/s2/util/coding/coder.h::3436:
:
In file included from In file included from ../src/s2/s2closest_edge_query_base.h../src/s2/base/casts.h::3236:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_set.h../src/s2/base/logging.h::6521:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/check.h::7037:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h/usr/local/clang/include/absl/log/internal/check_impl.h::19821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/str_cat.h::506116::
1In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/numbers.h
:200/usr/local/clang/include/absl/log/internal/check_op.h::7489:: 47:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  200   | 489c | h a r *   a bcsoln_snto nTn1u&l lv 1F,a sctoInnsttT oTB2u&f fve2r,( ucionnts3t2 _cth anr,*  cahbasrl*_ naobnsnlu_lnlo nenxuplrlt eoxutt) _{s t r ) 
       \| 
      ^      
|                                               ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnuIn file included from ls2/s2shape_index_measures.ccl: 18o:
uIn file included from t../src/s2/s2shape_index_measures.h_:s25t:
rIn file included from )../src/s2/s1angle.h
:      28| :
                                                     ^In file included from 
../src/s2/s2point.h:25/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/util/coding/coder.h::2236::
 In file included from ../src/s2/base/casts.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from ../src/s2/base/logging.h  :24121 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
s/usr/local/clang/include/absl/log/internal/check_op.hl:_506n:o1n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 _/usr/local/clang/include/absl/log/internal/check_op.hN:o497n:n32u:l lnote: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'      
|                      ^
  497 |   inline constexpr const char* absl_nullable In file included from ns2/s2shape_index_buffered_region.cca:m18e:
#In file included from #../src/s2/s2shape_index_buffered_region.hI:m29p:
lIn file included from (../src/s2/s2closest_edge_query.h : 34 :
 In file included from  ../src/s2/s2closest_edge_query_base.h : 32 :
 In file included from  /usr/local/clang/include/absl/container/btree_set.h : 65 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from \/usr/local/clang/include/absl/container/internal/layout.h
:      198| :
                               ^In file included from 
/usr/local/clang/include/absl/strings/str_cat.h:116/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2323::
 /usr/local/clang/include/absl/strings/numbers.hnote: :expanded from macro 'absl_nullable'201
:5:   257 | warning: #'diagnose_if' is a clang extension [-Wgcc-compat]d
efin  e201  | a b s l _AnBuSlLl_aIbNlTeE R_NNAuLl_lNaEbElDe_
M      I| N                      ^_
SIZE(out_In file included from ss2/s2shape_index_measures.cct:r18,:
 In file included from k../src/s2/s2shape_index_measures.hF:a25s:
tIn file included from T../src/s2/s1angle.ho:B28u:
fIn file included from f../src/s2/s2point.he:r25S:
iIn file included from z../src/s2/util/coding/coder.he:)36;:

In file included from       ../src/s2/base/casts.h| :    ^36
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/macros.h::21251:
:In file included from 18/usr/local/clang/include/absl/log/check.h:: 37:
note: In file included from expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  /usr/local/clang/include/absl/log/internal/check_op.h251: | 506 : 1_:_ awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ri/usr/local/clang/include/absl/log/internal/check_op.hb:u498t:e35_:_ (note: (expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'd
iag  n498o | s e _ i f ( _i_nbtu ivl1t,i ni_notb jve2c,t _csoinzset( Ocbhja,r *0 )a b<s lN_,n o\n
n      u| l                 ^l
 exprtext) {  In file included from  s2/s2shape_index_buffered_region.cc : 18 :
 In file included from  ../src/s2/s2shape_index_buffered_region.h : 29 :
 In file included from  ../src/s2/s2closest_edge_query.h : 34 :
 In file included from \../src/s2/s2closest_edge_query_base.h
:      32| :
                                  ^In file included from 
/usr/local/clang/include/absl/container/btree_set.h:65/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/internal/btree.h::2270::
 In file included from /usr/local/clang/include/absl/container/internal/layout.hnote: :expanded from macro 'absl_nonnull'198
:
In file included from   /usr/local/clang/include/absl/strings/str_cat.h241: | 116#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hf:i23n:
e/usr/local/clang/include/absl/strings/numbers.h :a202b:s7l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l202  | _cNhoanrn*u lalb
s      l| _                     ^n
onnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from In file included from s2/s2shape_index_buffered_region.cc../src/s2/base/casts.h::1836:
:
In file included from In file included from ../src/s2/s2shape_index_buffered_region.h../src/s2/base/logging.h::2921:
:
In file included from In file included from ../src/s2/s2closest_edge_query.h/usr/local/clang/include/absl/log/check.h::3437:
:
In file included from In file included from ../src/s2/s2closest_edge_query_base.h/usr/local/clang/include/absl/log/internal/check_impl.h::3221:
:
In file included from /usr/local/clang/include/absl/container/btree_set.h/usr/local/clang/include/absl/log/internal/check_op.h::65507:
:In file included from 1/usr/local/clang/include/absl/container/internal/btree.h:: 70:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/layout.h
:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h  :507116 | :
AIn file included from B/usr/local/clang/include/absl/strings/internal/stringify_sink.hS:L23_:
L/usr/local/clang/include/absl/strings/numbers.hO:G207_:I5N:T Ewarning: R'diagnose_if' is a clang extension [-Wgcc-compat]N
AL_  C207H | E C K _ OAPB_SILM_PILN(TCEhReNcAkL__GNTE,E D>_)M
I      N| _^S
IZ/usr/local/clang/include/absl/log/internal/check_op.hE:(488b:u32f:f enote: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL',
 kF  a488s | t T oiBnulfifneer 1c2o8nSsitzeex)p;r
       c| o    ^n
st/usr/local/clang/include/absl/base/macros.h :c251h:a18r:*  note: aexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'b
sl_  n251u | l l a_b_laet tnraimbeu#t#eI_m_p(l((d i a g n o s e _ i f ( _ _ b u i l t i\n
_      o| b                               ^j
ec/usr/local/clang/include/absl/base/nullability.ht:_257s:i23z:e (note: Oexpanded from macro 'absl_nullable'b
j,   2570 | )# d<e fNi,n e\ 
a      bs| l                 ^_
nullable _NuIn file included from ls2/s2shape_index_buffered_region.ccl:a18b:
lIn file included from e../src/s2/s2shape_index_buffered_region.h
:      29| :
                      ^In file included from 
../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70In file included from :
s2/s2shape_index_measures.ccIn file included from :/usr/local/clang/include/absl/container/internal/layout.h18::
198In file included from :
../src/s2/s2shape_index_measures.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h25::
116In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h28::
23In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/strings/numbers.h25::
208In file included from :../src/s2/util/coding/coder.h7::36 :
In file included from warning: ../src/s2/base/casts.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/base/logging.h:  21208:
 | In file included from c/usr/local/clang/include/absl/log/check.hh:a37r:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n507o:n1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Fa/usr/local/clang/include/absl/log/internal/check_op.hs:t489I:n47t:T onote: Bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
ffe  r489( | u i n t 1 2 8c oin,s tc hTa1r&*  va1b,s lc_onnosntn uTl2l&  bvu2f,f ecro)n
s      t|        ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld eefxipnret eaxbts)l _{n o n n u l\l
       _| N                                              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2shape_index_buffered_region.ccn:e18 :
aIn file included from b../src/s2/s2shape_index_buffered_region.hs:l29_:
nIn file included from o../src/s2/s2closest_edge_query.hn:n34u:
lIn file included from l../src/s2/s2closest_edge_query_base.h :_32N:
oIn file included from n/usr/local/clang/include/absl/container/btree_set.hn:u65l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                     ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shape_index_measures.cc241: | 18#:
dIn file included from e../src/s2/s2shape_index_measures.hf:i25n:
eIn file included from  ../src/s2/s1angle.ha:b28s:
lIn file included from _../src/s2/s2point.hn:o25n:
nIn file included from u../src/s2/util/coding/coder.hl:l36 :
_In file included from N../src/s2/base/casts.ho:n36n:
uIn file included from l../src/s2/base/logging.h:l21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                     ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constIn file included from es2/s2shape_index_buffered_region.ccx:p18r:
 In file included from c../src/s2/s2shape_index_buffered_region.ho:n29s:
tIn file included from  ../src/s2/s2closest_edge_query.hc:h34a:
rIn file included from *../src/s2/s2closest_edge_query_base.h :a32b:
sIn file included from l/usr/local/clang/include/absl/container/btree_set.h_:n65u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:b70l:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.hn:a198m:
eIn file included from #/usr/local/clang/include/absl/strings/str_cat.h#:I116m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.h(: 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 209 : 5 :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat] 
      209  |     \ 
       A| B                               ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N257T:E23R:N Anote: Lexpanded from macro 'absl_nullable'_
NE  E257D | _#MdIeNf_iSnIeZ Ea(bbsulf_fneurl,l akbFlaes t_TNouBlulfafbelre1
2      8| S                      ^i
ze);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251In file included from :s2/s2shape_index_measures.cc18::18 :
In file included from note: ../src/s2/s2shape_index_measures.hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
25:
In file included from ../src/s2/s1angle.h  :25128 | :
 In file included from  ../src/s2/s2point.h_:_25a:
tIn file included from t../src/s2/util/coding/coder.hr:i36b:
uIn file included from t../src/s2/base/casts.he:_36_:
(In file included from (../src/s2/base/logging.hd:i21a:
gIn file included from n/usr/local/clang/include/absl/log/check.ho:s37e:
_In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hf:(21_:
_/usr/local/clang/include/absl/log/internal/check_op.hb:u507i:l1t:i nwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
bj/usr/local/clang/include/absl/log/internal/check_op.he:c498t:_35s:i znote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'(
Obj  ,498  | 0 )   <   N ,i n\t
       v| 1                 ^,
 int v2, const chIn file included from as2/s2shape_index_buffered_region.ccr:*18 :
aIn file included from b../src/s2/s2shape_index_buffered_region.hs:l29_:
nIn file included from o../src/s2/s2closest_edge_query.hn:n34u:
lIn file included from l../src/s2/s2closest_edge_query_base.h :e32x:
pIn file included from r/usr/local/clang/include/absl/container/btree_set.ht:e65x:
tIn file included from )/usr/local/clang/include/absl/container/internal/btree.h :{70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h\:
215      :| 7                                  ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22  :215  | note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innoen naublsll _FnaosntnIunltlT o_BNuofnfneurl(li
n      | t                     ^_
type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2region.ccu:l18l:
 In file included from _../src/s2/s2region.hN:o24n:
nIn file included from u../src/s2/s1angle.hl:l28
:
      In file included from | ../src/s2/s2point.h                     ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2shape_index_buffered_region.cc#:d18e:
fIn file included from i../src/s2/s2shape_index_buffered_region.hn:e29 :
aIn file included from b../src/s2/s2closest_edge_query.hs:l34_:
nIn file included from o../src/s2/s2closest_edge_query_base.hn:n32u:
lIn file included from l/usr/local/clang/include/absl/container/btree_set.h :_65N:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hn:u70l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/layout.h      :| 198                     ^:

In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNIn file included from As2/s2region.ccL:_18N:
EIn file included from E../src/s2/s2region.hD:_24M:
IIn file included from N../src/s2/s1angle.h_:S28I:
ZIn file included from E../src/s2/s2point.h(:
27      :
| In file included from     ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/base/macros.hIn file included from :/usr/local/clang/include/absl/status/status.h251::6718:
: /usr/local/clang/include/absl/status/internal/status_internal.h:note: 125expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
14:   warning: 251type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  _  _125a | t t rSitbauttues_R_e(p(*d iaabgsnlo_sneo_ninfu(l_l_ bCuliolnteiAnn_doUbnjreecft(_
s      i| z             ^e
(O/usr/local/clang/include/absl/base/nullability.hb:j241,: 220:)  note: <expanded from macro 'absl_nonnull' 
N,   241\ | 
#      d| e                 ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* aIn file included from bs2/s2shape_index_buffered_region.ccs:l18_:
nIn file included from u../src/s2/s2shape_index_buffered_region.hl:l29a:
bIn file included from l../src/s2/s2closest_edge_query.he: 34C:
hIn file included from e../src/s2/s2closest_edge_query_base.hc:k32s:
tIn file included from r/usr/local/clang/include/absl/container/btree_set.hc:m65p:
tIn file included from r/usr/local/clang/include/absl/container/internal/btree.hu:e70I:
mIn file included from p/usr/local/clang/include/absl/container/internal/layout.hl:(198
:
      In file included from | /usr/local/clang/include/absl/strings/str_cat.h            ^:
116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h/usr/local/clang/include/absl/base/nullability.h::23257:
:23/usr/local/clang/include/absl/strings/numbers.h:: 303:note: 60expanded from macro 'absl_nullable':
 warning:   257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i303n | ei nalbisnle_ nsuilzlea_btl eF a_sNtuHlelxaTbolBeu
f      f| e                      ^r
ZeroPadIn file included from 1s2/s2shape_index_measures.cc6:(18u:
iIn file included from n../src/s2/s2shape_index_measures.ht:6254:
_In file included from t../src/s2/s1angle.h :v28a:
lIn file included from ,../src/s2/s2point.h :c25h:
aIn file included from r../src/s2/util/coding/coder.h*: 36a:
bIn file included from s../src/s2/base/casts.hl:_36n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.ho:u37t:
)In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h{:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                                                           ^:
512:17:/usr/local/clang/include/absl/base/nullability.h :241warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'512
 |     241  |  #cdoenfsitn ec haabrs*l _anbosnln_unlull l_aNbolnen usl1l,
       c| o                     ^n
st char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2shape_index_buffered_region.cca:b18s:
lIn file included from _../src/s2/s2shape_index_buffered_region.hn:u29l:
lIn file included from a../src/s2/s2closest_edge_query.hb:l34e:
 In file included from _../src/s2/s2closest_edge_query_base.hN:u32l:
lIn file included from a/usr/local/clang/include/absl/container/btree_set.hb:l65e:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                      ^70
:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116In file included from :
s2/s2shape_index_measures.ccIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h18::
23In file included from :
../src/s2/s2shape_index_measures.h:/usr/local/clang/include/absl/strings/numbers.h25::
330In file included from :../src/s2/s1angle.h41::28 :
In file included from warning: ../src/s2/s2point.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/util/coding/coder.h:36  :
330In file included from  | ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 513 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    i513n | t _ t y pceo*n satb sclh_anro*n naublsll _onuotn)n u{l
l       | e                                        ^x
prt/usr/local/clang/include/absl/base/nullability.he:x241t:)22;:
       | note:                 ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2shape_index_buffered_region.cc21::
18In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2shape_index_buffered_region.h37::
29In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2closest_edge_query.h21::
34:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2closest_edge_query_base.h514::3213:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/btree_set.hwarning: ::type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]12865
::
14In file included from :/usr/local/clang/include/absl/container/internal/btree.h   :51470 | warning: :
ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from o
/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
   In file included from 128c/usr/local/clang/include/absl/strings/str_cat.h | h: a116 r:
S*In file included from t /usr/local/clang/include/absl/strings/internal/stringify_sink.haa:tb23us:
sl/usr/local/clang/include/absl/strings/numbers.hR_:en335pu:*l52 l:aa bbwarning: sltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]le
 _Cnhoe  nc335nk |    su tlr lc  m Cp lf oa nl es Ae nI dm Up nl r( e
 f       (|  )            ^  
 c o/usr/local/clang/include/absl/base/nullability.h n: s257 t: ; 23
 :        |  note:              ^ expanded from macro 'absl_nullable'
 
    /usr/local/clang/include/absl/base/nullability.h 257:a | b241#s:dl22e::f: iinote: nnexpanded from macro 'absl_nonnull'et
1 2a  8b241s* | l #_anbdsuellf_linanobenl neau bl_slNl u_lonluoatbnl)ne u
{l      
l|                              ^| _
                                                   ^N
onn/usr/local/clang/include/absl/base/nullability.hu:In file included from l241ls2/s2shape_index_measures.cc
::      2218| ::
                     ^ In file included from 
../src/s2/s2shape_index_measures.hnote: :expanded from macro 'absl_nonnull'25
:
In file included from ../src/s2/s1angle.h  :24128 | :
#In file included from d../src/s2/s2point.he:f25i:
nIn file included from e../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      /usr/local/clang/include/absl/log/internal/check_op.h| :                     ^515
:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2shape_index_buffered_region.ccexpanded from macro 'absl_nullable':
18:
In file included from   ../src/s2/s2shape_index_buffered_region.h257: | 29:
#In file included from d../src/s2/s2closest_edge_query.he:f34i:
nIn file included from e../src/s2/s2closest_edge_query_base.h :a32b:
sIn file included from l/usr/local/clang/include/absl/container/btree_set.h_:n65u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:b70l:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.h_:N198u:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.ha:b116l:
eIn file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h      :| 23                      ^:

/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shape_index_measures.cc
:18:
In file included from ../src/s2/s2shape_index_measures.h:  25340:
 | In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 515a:b47s:l :warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
int  15152 | 8 *   a bcsoln_snto ncnhualrl*  oaubts)l _{n
u      l| l                                                    ^a
bl/usr/local/clang/include/absl/base/nullability.he: 241s:122,:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adre*f ianbes la_bnsull_lnaobnlneu lsl2 ,_
N      o| n                                              ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
257      :| 23                     ^:
 note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from In file included from ../src/s2/base/logging.hs2/s2shape_index_buffered_region.cc::2118:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2shape_index_buffered_region.h::3729:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2closest_edge_query.h::2134:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2closest_edge_query_base.h516::3217:
:In file included from  /usr/local/clang/include/absl/container/btree_set.h:warning: 65type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:  70516:
 | In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
cIn file included from o/usr/local/clang/include/absl/strings/str_cat.hn:s116t:
 In file included from c/usr/local/clang/include/absl/strings/internal/stringify_sink.hh:a23r:
*/usr/local/clang/include/absl/strings/numbers.h :a346b:s44l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   346e | x p r t e x t ) ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f iinnet _atbysple_*n oanbnsull_ln o_nNnounlnlu lolu
t      )|                       ^{

      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2shape_index_measures.cc | :#18d:
eIn file included from f../src/s2/s2shape_index_measures.hi:n25e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n25n:
uIn file included from l../src/s2/util/coding/coder.hl: 36_:
NIn file included from o../src/s2/base/casts.hn:n36u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstIn file included from rs2/s2shape_index_buffered_region.ccc:a18s:
eIn file included from c../src/s2/s2shape_index_buffered_region.hm:p29t:
rIn file included from u../src/s2/s2closest_edge_query.he:I34m:
pIn file included from l../src/s2/s2closest_edge_query_base.h(:
32      :
| In file included from             ^/usr/local/clang/include/absl/container/btree_set.h
:65:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h257::7023:
:In file included from  /usr/local/clang/include/absl/container/internal/layout.h:note: 198expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116257:
 | In file included from #/usr/local/clang/include/absl/strings/internal/stringify_sink.hd:e23f:
i/usr/local/clang/include/absl/strings/numbers.hn:e351 :a55b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ulla  b351l | e   _ N u l l a b l e 
        |                        ^ 
     In file included from  s2/s2shape_index_measures.cc : 18 :
 In file included from  ../src/s2/s2shape_index_measures.h : 25 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from a../src/s2/util/coding/coder.hb:s36l:
:In file included from :../src/s2/base/casts.hi:n36t:
1In file included from 2../src/s2/base/logging.h8:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 518o:u17t:)  warning: {
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                                                       ^
  518 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naublslla_bnloen nsu1l,l  c_oNnosntn uclhla
r      *|                       ^a
bsl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18In file included from :
s2/s2shape_index_measures.ccIn file included from :../src/s2/s2shape_index_buffered_region.h18::
29In file included from :
../src/s2/s2shape_index_measures.hIn file included from :../src/s2/s2closest_edge_query.h25::
34In file included from :
../src/s2/s1angle.hIn file included from :../src/s2/s2closest_edge_query_base.h28::
32In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/container/btree_set.h25::
65In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h36::
70In file included from :
../src/s2/base/casts.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h36::
198In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h21::
116In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h37::
23In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/strings/numbers.h21::
356/usr/local/clang/include/absl/log/internal/check_op.h::56518:: 47:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
    356518 |  |          c o n s t   c h a r *   a b s l _ n u l l a b l e   s 1 ,   c o n s t  acbhsalr:*: uaibnstl1_2n8u*l laabbslle_ nso2n,n
u      l| l                                              ^ 
ou/usr/local/clang/include/absl/base/nullability.ht:)257 :{23
:       | note:                                                        ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea balbes l__Nnuolnlnaubllle 
_      N| o                      ^n
null
      | In file included from                      ^s2/s2shape_index_measures.cc
:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:65:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
575 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shapeutil_conversion.cc -o s2/s2shapeutil_conversion.o
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2region.cc:18:
In file included from ../src/s2/s2region.h:24:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERIn file included from Ns2/s2shape_index_measures.ccA:L18_:
IIn file included from F../src/s2/s2shape_index_measures.h_:f25a:
lIn file included from s../src/s2/s1angle.he:(28i:
fIn file included from _../src/s2/s2point.hs:a27t:
iIn file included from s../src/s2/s2coder.hf:i23e:
dIn file included from ,/usr/local/clang/include/absl/status/status.h :.67.:
.In file included from )/usr/local/clang/include/absl/status/internal/status_internal.h :_29_:
VIn file included from A/usr/local/clang/include/absl/strings/cord.h_:A82R:
GIn file included from S/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_:_23
:
      In file included from | /usr/local/clang/include/absl/crc/crc32c.h        ^:
32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) ifIn file included from _s2/s2region.ccs:a22t:
iIn file included from s../src/s2/s2cap.hf:i31e:
dIn file included from 
../src/s2/s1chord_angle.h      :| 31        ^:

In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shape_index_buffered_region.cc276: | 18 :
 In file included from  ../src/s2/s2shape_index_buffered_region.h :S292:
_In file included from C../src/s2/s2closest_edge_query.hH:E34C:
KIn file included from _../src/s2/s2closest_edge_query_base.hN:E32(:
dIn file included from e/usr/local/clang/include/absl/container/btree_set.ht:,66 :
V/usr/local/clang/include/absl/container/internal/btree_container.hT:y574p:e3(:0 )warning: )'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
<< "   C574a | n ' tA BiSnLv_eIrNsTeE.R NDAeLt_eXr(miinnsaenrtt _=o r0_.a"s;s
i      g| n    ^,
 in../src/s2/base/logging.hs:e37r:t21_:o rnote: _expanded from macro 'S2_CHECK_NE'a
ss   i37g | n#_dheifnitn_ei mSp2l_,C HcEoCnKs_tN E& ,C H&E&C,K
_      N| E  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |                     ^
  575 | /usr/local/clang/include/absl/log/check.h : 120 : 3 :   note:  expanded from macro 'CHECK_NE' 
      120  |      A BtSrLu_eL,O Gt_rIuNeT,E RcNoAnLs_tC_HiEtCeKr_aNtEo_rI(MhPiLn(t()v aAlB1S)L,_ I#NvTaElR1N,A L(_vCaOlM2M)A,) ;#
v      a| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2
)
      | /usr/local/clang/include/absl/container/internal/btree_container.h  ^:
509:47/usr/local/clang/include/absl/log/internal/check_impl.h:: 51:note: 3expanded from macro 'ABSL_INTERNAL_X':
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
  509 |      51  |      A B S L _ALBOSGL__IINNTTEERRNNAALL__CAHTETCRKI_BOUPT(EC_hCeAcPkT_UNREE,D _!B=Y,( tvhails1),) ,v a l 1 _ t e x t ,   v a l 2 ,   v a l 2 _ t e x\t
)      
|                                                     ^~~~| 
  ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'574
:3:    warning: 68passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
 /usr/local/clang/include/absl/container/internal/btree_container.h :w511h:i52l:e  note: (expanded from macro 'ABSL_INTERNAL_X'c
ons  t511  | c h a r *   a b s l _AnBuSlLl_aIbNlTeE RaNbAsLl__AlToTgR_IiBnUtTeEr_nCaAlP_TcUhReEcDk__BoYp(_trheissu)l)t)         In file included from    s2/s2shape_index_measures.cc      \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2region.cc:22:
In file included from ../src/s2/s2cap.h:31:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTER:NAL18_:
CIn file included from H../src/s2/s2shape_index_measures.hE:C25K:
_In file included from N../src/s2/s1angle.hE:_28I:
MIn file included from P../src/s2/s2point.hL:(27(:
vIn file included from a../src/s2/s2coder.hl:123):
,In file included from  /usr/local/clang/include/absl/status/status.h#:v67a:
lIn file included from 1/usr/local/clang/include/absl/status/internal/status_internal.h,: 29(:
vIn file included from a/usr/local/clang/include/absl/strings/cord.hl:282):
,In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h#:v23a:
lIn file included from 2/usr/local/clang/include/absl/crc/crc32c.h):
32      :
| In file included from   ^/usr/local/clang/include/absl/strings/str_format.h
:84/usr/local/clang/include/absl/log/internal/check_impl.h:
:51/usr/local/clang/include/absl/strings/internal/str_format/bind.h::3143:: 11:note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'warning: 
'enable_if' is a clang extension [-Wgcc-compat]
   51 |     143A | B S L _ L O G _ I N TeEnRaNbAlLe__CiHfE(CsKt_rO_Pf(oCrhmeactk__iNnEt,e r!n=a,l :v:aEln1s,u rveaClo1n_stteexxtp,r (vsa)l,2 ," cvoanls2t_etxepxrt )t
r      a| p  ^"
),/usr/local/clang/include/absl/log/internal/check_op.h
:      75| :          ^61
: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const /usr/local/clang/include/absl/strings/internal/str_format/bind.hc:h149a:r22*:  awarning: b'enable_if' is a clang extension [-Wgcc-compat]s
l_no  n149n | u l l > (    _ _ a t\t
r      i| b                                                            ^u
te/usr/local/clang/include/absl/base/nullability.h_:_241(:(22e:n anote: bexpanded from macro 'absl_nonnull'l
e_  i241f | (#sdterf_ifnoer maabts_li_nntoenrnnualll: :_ENnosnunruelClo
n      s| t                     ^e
xpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
579 warnings generated.
                 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assi/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shapeutil_edge_iterator.cc -o s2/s2shapeutil_edge_iterator.o
gn_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:32:
In file included from /usr/local/clang/include/absl/container/btree_set.h:66:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*a367b warningssl generated_.
nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool Guar/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shapeutil_get_reference_point.cc -o s2/s2shapeutil_get_reference_point.o
anteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                    In file included from s2/s2shape_index_buffered_region.cc:18:
In file included from ../src/s2/s2shape_index_buffered_region.h:29:
In file included from ../src/s2/s2closest_edge_query.h:34:
In file included from ../src/s2/s2closest_edge_query_base.h:33:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
              const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shape_measures.ccs2/s2shape_index_measures.cc::1818:
:
In file included from In file included from ../src/s2/s2shape_measures.h../src/s2/s2shape_index_measures.h::2725:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s1angle.h::2828:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/s2point.h::2427:
:
In file included from In file included from /usr/local/clang/include/absl/hash/hash.h../src/s2/s2coder.h::8923:
:
In file included from In file included from /usr/local/clang/include/absl/hash/internal/hash.h/usr/local/clang/include/absl/status/status.h::7967:
:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.h/usr/local/clang/include/absl/status/internal/status_internal.h::2629:
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/internal/unaligned_access.h::151439::2945::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1514 |        c39o | ridn_liinntee runianlt:1:6C_otr dURneapl*i ganbesdlL_onaodn1n6u(lclo ntsrte ev)o i{d
*       | a                            ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
p)   241{ | 
#      d| e                                            ^f
ine absl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2shape_index_measures.ccl:
18      :
| In file included from                      ^../src/s2/s2shape_index_measures.h
:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tIn file included from rs2/s2shape_measures.cce:e18):
 In file included from {../src/s2/s2shape_measures.h
:      27| :
                            ^In file included from 
../src/s2/s1angle.h:28/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2224::
 In file included from /usr/local/clang/include/absl/hash/hash.hnote: :expanded from macro 'absl_nonnull'89
:
In file included from   /usr/local/clang/include/absl/hash/internal/hash.h241: | 79#:
dIn file included from e/usr/local/clang/include/absl/base/internal/endian.hf:i26n:
e/usr/local/clang/include/absl/base/internal/unaligned_access.h :a51b:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2shape_index.ccn:o18n:
nIn file included from u../src/s2/s2shape_index.hl:l60 :
_In file included from N../src/s2/s2cell_id.ho:n43n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* In file included from as2/s2shape_index.ccb:s18l:
_In file included from n../src/s2/s2shape_index.ho:n60n:
uIn file included from l../src/s2/s2cell_id.hl: 43R:
eIn file included from p../src/s2/s1angle.hT:o28P:
oIn file included from i../src/s2/s2point.hn:t27e:
rIn file included from (../src/s2/s2coder.h
:      23| :
                                           ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'82
:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/crc/crc32c.he:f32i:
ne/usr/local/clang/include/absl/strings/str_format.h :a115b:s52l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   _115N | o n n u In file included from l ls2/s2shape_measures.cc 
:c      18o| n:
                     ^sIn file included from 
t../src/s2/s2shape_measures.h :s27t:
rIn file included from _../src/s2/s1angle.hf:o28r:
mIn file included from a../src/s2/s2point.ht:_24i:
nIn file included from t/usr/local/clang/include/absl/hash/hash.he:r89n:
aIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h:::90P:
ar/usr/local/clang/include/absl/strings/string_view.hs:e53d:F54o:r mwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
Base*    a53b | sclo_nnsotnenxuplrl  sptcr)i
n      g| _                                                   ^v
iew /usr/local/clang/include/absl/base/nullability.hN:u241l:l22S:a fnote: eexpanded from macro 'absl_nonnull'S
tr  i241n | g#Vdieefwi(nceo nasbts lc_hnaorn*n ualbls l__Nnounlnlualbll
e       | p                     ^)
 {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:25:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_measures.cc:18:
In file included from ../src/s2/s2shape_index_measures.h:27:
In file included from ../src/s2/s2shape_index.h:63:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* In file included from as2/s2shape_index.ccb:s18l:
_In file included from n../src/s2/s2shape_index.hu:l60l:
aIn file included from b../src/s2/s2cell_id.hl:e43 :
aIn file included from b../src/s2/s1angle.hs:l28_:
lIn file included from o../src/s2/s2point.hg:_27i:
nIn file included from t../src/s2/s2coder.he:r23n:
aIn file included from l/usr/local/clang/include/absl/status/status.h_:c67h:
eIn file included from c/usr/local/clang/include/absl/status/internal/status_internal.hk:_29o:
p_/usr/local/clang/include/absl/strings/cord.hr:e1505s:u41l:t  warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        1505  | \i
n      l| i                     ^n
e void Cord::CopyToArrayImpl(c/usr/local/clang/include/absl/base/nullability.hh:a257r:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_nonn  u257l | l# ddesfti)n ec oanbsstl _{n
u      l| l                                        ^a
ble _/usr/local/clang/include/absl/base/nullability.hN:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull'

      |                         ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2shape_index_measures.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2shape_index_measures.h:
:In file included from 27/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2shape_index.h:
:/usr/local/clang/include/absl/strings/cord.h63::
1514In file included from :../src/s2/s2pointutil.h29::27 :
warning: ../src/s2/util/math/matrix3x3.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
276:5:  warning: 1514type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
    co../src/s2/base/logging.hr:d37_:i21n:t enote: rexpanded from macro 'S2_CHECK_NE'n
al:   :37C | o#rddeRfeipn*e  aSb2s_lC_HnEoCnKn_uNlEl  CtHrEeCeK)_ N{E

            | |                             ^                    ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::241120::223::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'CHECK_NE'

  241   | 120# | d e fAiBnSeL _aLbOsGl__InNoTnEnRuNlAlL __CNHoEnCnKu_lNlE
_      I| M                     ^P
L((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:60:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...In file included from )s2/s2shape_index.cc :i18f:
_In file included from s../src/s2/s2shape_index.ha:t60i:
sIn file included from f../src/s2/s2cell_id.hi:e43d:

In file included from       ../src/s2/s1angle.h| :        ^28
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42:In file included from  s2/s2shape_index_buffered_region.cc:warning: 33type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h :103145 | :
i/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:l148i:n3e:  cwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
st st  a148t | u s _AiBnStLe_rInNaTlE:R:NSAtLa_tXu(siRnespe*r ta_bosrl__ansosningunl,l  iSntsaetruts_:o:rR_eapsTsoiPgno_iinmtpelr,( 
c      o| n                                         ^s
t&, /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:& ,note:  expanded from macro 'absl_nonnull't
ru  e241, | 
#      d| e  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
ine   149a | b s l                true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define AB_SLn_oInNnTuElRlN A_LN_oInFn_uflall
s      e| (                     ^i
f_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assIn file included from is2/s2shape_index.ccg:n18_:
iIn file included from m../src/s2/s2shape_index.hp:l60,:
 In file included from c../src/s2/s2cell_id.ho:n43s:
tIn file included from &../src/s2/s1angle.h,: 28&:
&In file included from ,../src/s2/s2point.h :f27a:
lIn file included from s../src/s2/s2coder.he:,23
:
      | /usr/local/clang/include/absl/status/status.h  ^:
1038:33/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 135:warning: 16:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
 1038 |    135  |     s t a t u s _ i nttheirsn)a)l): :ASBtSaLt_uAsTRTeRpI*B UaTbEs_lL_InFoEnTnIuMlEl_ BrOeUpN)D  {{
        |                                  ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n               ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l31l: 9_:N onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ul   l31
 |       #| d                     ^e
fine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |   In file included from  s2/s2shape_index.cc : 18 :
 In file included from  ../src/s2/s2shape_index.h : 60t:
hIn file included from i../src/s2/s2cell_id.hs:)43):
)In file included from  ../src/s2/s1angle.hA:B28S:
LIn file included from _../src/s2/s2point.hA:T27T:
RIn file included from I../src/s2/s2coder.hB:U23T:
E/usr/local/clang/include/absl/status/status.h_:L1063I:F13E:T Iwarning: ME_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
OUND  1063{ |  c o n s t   c h a r *   a    b s l _ n o n n u l l   S t\a
t      u| s          ^~~~M
essageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2/s2shape_measures.cc::16518::
52In file included from :../src/s2/s2shape_measures.h :warning: 27passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s1angle.h:28  :
165In file included from  | ../src/s2/s2point.h : 25 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
fIn file included from a/usr/local/clang/include/absl/log/internal/log_impl.hl:s20e:
,In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.hA:B63S:
L_/usr/local/clang/include/absl/log/internal/vlog_config.hI:N49T:E37R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
SINGL   E49_ | AiRnGt( )R)e;g
i      s| t                                                   ^e
rA/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:d120I:n9i:t inote: amacro 'ABSL_INTERNAL_X' defined herel
ize  (120V | L#odgeSfiitnee*  AaBbSsLl__InNoTnEnRuNlAlL _vX)(;F
u      n| c                                    ^,
 Cal/usr/local/clang/include/absl/base/nullability.hl:e241e:,22 :K Qnote: uexpanded from macro 'absl_nonnull'a
l,   241V | Q#udaelf,i nKeV aalbusel,_ nVoVnanluulel,  _TNaoinln,u l.l.
.      )|                       ^\

      |         ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnu/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:l164 :f3):
       warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                                          ^

/usr/local/clang/include/absl/base/nullability.h  :164241 | : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nXe( ianbsselr_tn_oonrn_ualsls i_gNno,n niunlsle
r      t| _                     ^o
r_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTIn file included from Es2/s2shape_measures.cc_:C18A:
PIn file included from T../src/s2/s2shape_measures.hU:R27E:
DIn file included from _../src/s2/s1angle.hB:Y28(:
tIn file included from h../src/s2/s2point.hi:s25):
)In file included from ,../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 96\:
60      :|                                                     ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:31:9   :96  | note:  macro 'ABSL_INTERNAL_IF_true' defined here 
fri   e31n | d# dienfti nleo gA_BiSnLt_eIrNnTaElR:N:ARLe_gIiFs_tterruAen(diIfn_istaitailsifziee(dV,L o.g.S.i)t ei*f _asbastli_snfoinendu
l      l|          ^v
);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2shape_index_buffered_region.cc22::33 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2shape_index_region.h
:25  :
241In file included from  | /usr/local/clang/include/absl/container/flat_hash_map.h#:d45e:
f/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:n164e: 3a:b swarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
nonnu  l164l |   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnullIn file included from  s2/s2shape_index_buffered_region.ccc:o33n:
sIn file included from t../src/s2/s2shape_index_region.h :f25i:
lIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.h_:;45
:
      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h              ^:
167:51/usr/local/clang/include/absl/base/nullability.h:: 241warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]22
: note:   expanded from macro 'absl_nonnull'167
 |     241  |  # d e f i n e   a b s l _ n otnrnuuel,l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSIn file included from Ls2/s2shape_measures.cc_:A18T:
TIn file included from R../src/s2/s2shape_measures.hI:B27U:
TIn file included from E../src/s2/s1angle.h_:L28I:
FIn file included from E../src/s2/s2point.hT:I25M:
EIn file included from _../src/s2/util/coding/coder.hB:O36U:
NIn file included from D../src/s2/base/casts.h :{34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
  /usr/local/clang/include/absl/log/internal/vlog_config.h : 133 : 37 :    warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \
      |             ^~~~133
 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:In file included from 120s2/s2shape_measures.cc::918::
 In file included from note: ../src/s2/s2shape_measures.hmacro 'ABSL_INTERNAL_X' defined here:
27:
In file included from ../src/s2/s1angle.h  :12028 | :
#In file included from d../src/s2/s2point.he:f25i:
nIn file included from e../src/s2/util/coding/coder.h :A36B:
SIn file included from L../src/s2/base/casts.h_:I34N:
TIn file included from E/usr/local/clang/include/absl/log/log.hR:N209A:
LIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hX:(20F:
uIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.hc:,63 :
C/usr/local/clang/include/absl/log/internal/vlog_config.ha:l157l:e11e:,  warning: Ktype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]Q
ual  ,157  | VVQLuoaglS,i tKeV*a laubes,l _VnVuallluaeb,l eT aSielt,V M.o.d.u)l e\L
i      s| t        ^H
eadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_null/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b173l:e3 :v )warning: ;passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

      |               ^
  173/usr/local/clang/include/absl/base/nullability.h | : 257 :A23B:S Lnote: _expanded from macro 'absl_nullable'I
NT  E257R | N#AdLe_fXi(nien saebrstl__onru_lalsasbilgen ,_ Niunlslearbtl_eo
r      _| a                      ^s
sign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                    In file included from  s2/s2shape_nesting_query.cc : 17 :
 In file included from  ../src/s2/s2shape_nesting_query.h : 24 :
 In file included from \/usr/local/clang/include/absl/container/inlined_vector.h
:      56| :
          ^~~~In file included from 
/usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #d/usr/local/clang/include/absl/container/internal/raw_hash_map.he:f196i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l196l | a b iAlBiStLy__IuNnTkEnRoNwAnL __XN(uilnls_eurnts_poerc_iafsiseidg
n      ,|                                   ^i
nsert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_In file included from Cs2/s2shape_nesting_query.ccA:P17T:
UIn file included from R../src/s2/s2shape_nesting_query.hE:D24_:
BIn file included from Y/usr/local/clang/include/absl/container/inlined_vector.h(:t56h:
iIn file included from s/usr/local/clang/include/absl/container/internal/inlined_vector.h):)35,:
  /usr/local/clang/include/absl/types/span.h : 733 : 31 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
        733  |  c on s t e x p r\ 
S      p| a                                              ^~~~n
<T> Make/usr/local/clang/include/absl/container/internal/raw_hash_map.hS:p200a:n3(:T *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bs/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:_135n:u16l:l anote: bexpanded from macro 'ABSL_INTERNAL_X'l
e pt  r135  | A B S L _ A T T R I BtUhTiEs_)L)I)F EATBISMLE__ABTOTURNIDB,U
T      E| _                              ^L
IFE/usr/local/clang/include/absl/base/nullability.hT:I257M:E23_:B Onote: Uexpanded from macro 'absl_nullable'N
D   {257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b\l
e      
|                      ^| 
                      ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfiedIn file included from ,s2/s2shape_nesting_query.cc :.17.:
.In file included from )../src/s2/s2shape_nesting_query.h :_24_:
VIn file included from A/usr/local/clang/include/absl/container/inlined_vector.h_:A56R:
GIn file included from S/usr/local/clang/include/absl/container/internal/inlined_vector.h_:_35
:
      | /usr/local/clang/include/absl/types/span.h        ^:
739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nuIn file included from ls2/s2shape_index_buffered_region.ccl:a33b:
lIn file included from e../src/s2/s2shape_index_region.h :_25N:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:a45b:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.he:
202      :| 3                      ^:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, In file included from .s2/s2shape_nesting_query.cc.:.17):
 In file included from i../src/s2/s2shape_nesting_query.hf:_24s:
aIn file included from t/usr/local/clang/include/absl/container/inlined_vector.hi:s56f:
iIn file included from e/usr/local/clang/include/absl/container/internal/inlined_vector.hd:
35      :
|         ^/usr/local/clang/include/absl/types/span.h
:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |  In file included from  s2/s2shape_index_buffered_region.cc : 33T:
*In file included from  ../src/s2/s2shape_index_region.ha:b25s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_map.hn:u45l:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b202l:e3 :p twarning: r'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
ABSL_  A202T | T R IABBUSTLE__ILNITFEERTNIAMLE__XB(OiUnNsDe,r ts_iozre__ats ssiigzne,)  innoseexrcte_potr _{a
s      s| i       ^g
n_/usr/local/clang/include/absl/base/nullability.hi:m257p:l23,:  &note: &expanded from macro 'absl_nullable',
 c  oIn file included from 257ns2/s2shape_measures.cc | s#t:d&e,f18 it:
nrIn file included from eu ../src/s2/s2shape_measures.hea,b:
s27      l:
| _In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n../src/s2/s1angle.h
u:l28  l:
203aIn file included from  | b../src/s2/s2point.h l :e  25 _ :
N In file included from u ../src/s2/util/coding/coder.hl l: a36 b :
l eIn file included from  
 ../src/s2/base/casts.h       :|  34                      ^ :

 In file included from t/usr/local/clang/include/absl/log/log.hr:u209e:
,In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h.:f22i:
rIn file included from s/usr/local/clang/include/absl/log/internal/log_message.ht:,47 :
cIn file included from o/usr/local/clang/include/absl/log/internal/structured_proto.hn:s27t:
_In file included from i/usr/local/clang/include/absl/log/internal/proto.ht:e34r:
at/usr/local/clang/include/absl/types/span.ho:r212 In file included from :As2/s2shape_nesting_query.ccB22:S:17L :
_In file included from Iwarning: ../src/s2/s2shape_nesting_query.hN:Ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]24E
:
RIn file included from N/usr/local/clang/include/absl/container/inlined_vector.hA:L56_:
C  In file included from O212/usr/local/clang/include/absl/container/internal/inlined_vector.hM | :M 35A :
)u/usr/local/clang/include/absl/types/span.h;s:
i799      n:| g32                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ :
p o/usr/local/clang/include/absl/container/internal/raw_hash_map.hwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:n
133t:e  47r799:  | =  note: STexpanded from macro 'ABSL_INTERNAL_X'*p
 aanb  <s133cl | o _n ns ut l l T >a   bM ai kAleBiCtSoyLn_s_ItNuSTpnEaRknNn(ATLo*_ AwaTbTnsR;lI_
BnUu      Tl| El                     ^_aC
AbPlTeU/usr/local/clang/include/absl/base/nullability.h R:bEe289Dg:_iB34nY:
(       tnote: | expanded from macro 'absl_nullability_unknown'                               ^h

is  /usr/local/clang/include/absl/base/nullability.h)289:) | 257,#: d23 e:f   note:  iexpanded from macro 'absl_nullable' n
 e     257 a |  # bd es fl _i n ne   ua lb sl l _a nb ui l\ll
ia      bt| ly                                              ^~~~e_
 u_nNkunl/usr/local/clang/include/absl/container/internal/raw_hash_map.hol:wa202nb:l 3e_:
N       uwarning: | l                      ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l

_/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:n135s:p16eIn file included from :cs2/s2shape_nesting_query.cc i:note: f17iexpanded from macro 'ABSL_INTERNAL_X'e:

dIn file included from 
../src/s2/s2shape_nesting_query.h        :| 13524                                 ^ | :
 
In file included from  /usr/local/clang/include/absl/container/inlined_vector.h : 56 :
 In file included from  /usr/local/clang/include/absl/container/internal/inlined_vector.h : 35 :
t/usr/local/clang/include/absl/types/span.hh:iIn file included from 801ss2/s2shape_measures.cc:):32)18:):
  In file included from warning: A../src/s2/s2shape_measures.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B:
S27L:
  _In file included from 801A../src/s2/s1angle.h | T: T R I28 B :
U In file included from T ../src/s2/s2point.hE :_ L25 I :
F E In file included from T I../src/s2/util/coding/coder.h M: E 36_ B:
 O UIn file included from  N../src/s2/base/casts.h D  : { 34   :
    In file included from T /usr/local/clang/include/absl/log/log.h*   a :b 209s l:
 _ In file included from n u/usr/local/clang/include/absl/log/internal/log_impl.h l l :a b 22l e :
  e In file included from n /usr/local/clang/include/absl/log/internal/log_message.hd ) :  n 47o e:
 x In file included from c\e/usr/local/clang/include/absl/log/internal/structured_proto.h
p:      t27|                 ^:
{

In file included from       /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/log/internal/proto.h| ::                               ^3134
::
9/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/types/span.h::: 257213note: ::macro 'ABSL_INTERNAL_IF_true' defined here2334
::     note: warning: 31expanded from macro 'absl_nullable'type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
#
d  e257f | i  #nd213ee  | fAi BnS eL u_asIbNsiTlEn_RngNu AlLcl_aoIbFnl_est r_utNeu_(lilpfa_obsliaet
ni      ts| f                      ^e
ire d=,  c.o.n.s)t  iTf*_ saabtsils_fniueldl
a      b| i        ^l
ity_unknown;In file included from 
s2/s2shape_index_buffered_region.cc      :| 33                                 ^:

In file included from ../src/s2/s2shape_index_region.h:/usr/local/clang/include/absl/base/nullability.h25::
289In file included from :/usr/local/clang/include/absl/container/flat_hash_map.h34::45 :
note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hexpanded from macro 'absl_nullability_unknown':
202:3  :289  | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efin  e202  | a b sAlB_SnLu_lIlNaTbEiRlNiAtLy__Xu(niknnsoewrnt __oNru_lals_suingsnp,e ciinfsieerdt
_      o| r                                 ^_
assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/util/coding/coder.h209::363:
:In file included from  ../src/s2/base/casts.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]34
:
In file included from /usr/local/clang/include/absl/log/log.h:209  :
209In file included from  | /usr/local/clang/include/absl/log/internal/log_impl.h : 22A:
BIn file included from S/usr/local/clang/include/absl/log/internal/log_message.hL:_47I:
NIn file included from T/usr/local/clang/include/absl/log/internal/structured_proto.hE:R27N:
AIn file included from L/usr/local/clang/include/absl/log/internal/proto.h_:X34(:
in/usr/local/clang/include/absl/types/span.hs:e733r:t31_:o rwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
ssign  ,733  | icnosnesrtte_xoprr_ aSspsaing<nT_>i mMpalk,e S&p&a,n (&T&*,  atbrsule_,n uflallasbel,e
       p| t  ^r
 A/usr/local/clang/include/absl/container/internal/raw_hash_map.hB:S133L:_52A:T Tnote: Rexpanded from macro 'ABSL_INTERNAL_X'I
BUT  E133_ | L I F E T I M E _ B OAUBNSDL,_
I      N| T                              ^E
RNAL/usr/local/clang/include/absl/base/nullability.h_:A257T:T23R:I Bnote: Uexpanded from macro 'absl_nullable'T
E_  C257A | P#TdUeRfEiDn_eB Ya(btshli_sn)u)l,l a b l e   _ N u l l a b l e 
        |                        ^ 
       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satIn file included from is2/s2shape_measures.ccs:f18i:
eIn file included from d../src/s2/s2shape_measures.h,: 27.:
.In file included from .../src/s2/s1angle.h): 28i:
fIn file included from _../src/s2/s2point.hs:a25t:
iIn file included from s../src/s2/util/coding/coder.hf:i36e:
dIn file included from 
../src/s2/base/casts.h      :| 34        ^:

In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27In file included from :
s2/s2shape_index_buffered_region.ccIn file included from :/usr/local/clang/include/absl/log/internal/proto.h33::
34In file included from :
../src/s2/s2shape_index_region.h/usr/local/clang/include/absl/types/span.h::25739:
:In file included from 21/usr/local/clang/include/absl/container/flat_hash_map.h:: 45warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:209:3:   739warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]S
pan<T  >209  | M a kAeBSSpLa_nI(NTT*E RaNbAsLl__Xn(uilnlsaebrlte_ obre_gaisns iAgBnS,L _iAnTsTeRrItB_UoTrE__aLsIsFiEgTnI_MiEm_pBlO,U N&D&,,
       &| &                    ^,
 t/usr/local/clang/include/absl/base/nullability.hr:u257e:,23 :f anote: lexpanded from macro 'absl_nullable's
e,  
257       | | #  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
efi  n210e |   a b s l _ n u l l a b l e   _ N u l.lfaibrlset
,       | c                      ^o
nst_iterator In file included from As2/s2shape_measures.ccB:S18L:
_In file included from I../src/s2/s2shape_measures.hN:T27E:
RIn file included from N../src/s2/s1angle.hA:L28_:
CIn file included from O../src/s2/s2point.hM:M25A:
)In file included from ;../src/s2/util/coding/coder.h
:      36| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/base/casts.h:34:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/log/log.h133::20947:
:In file included from  /usr/local/clang/include/absl/log/internal/log_impl.hnote: :expanded from macro 'ABSL_INTERNAL_X'22
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47  :
133In file included from  | /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
 In file included from  /usr/local/clang/include/absl/log/internal/proto.h : 34 :
 /usr/local/clang/include/absl/types/span.h :A740B:S21L:_ Iwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERN  A740L | _ A T T R I B U T E _ C A P T U R ETD*_ BaYb(stlh_insu)l)l,a b l e   e n d )   n o e x c e p t   { 
        |                      ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
257      :| 23                                              ^~~~:
 note: expanded from macro 'absl_nullable'
  257 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h#:d209e:f3i:n ewarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
b/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l135_:n16u:l lnote: aexpanded from macro 'ABSL_INTERNAL_X'b
le   _135N | u l l a b l e 
        |                        ^t
his))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullablIn file included from es2/s2shape_index_buffered_region.cc :_33N:
uIn file included from l../src/s2/s2shape_index_region.hl:a25b:
lIn file included from e/usr/local/clang/include/absl/container/flat_hash_map.h
:      45| :
                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, In file included from is2/s2shape_measures.ccn:s18e:
rIn file included from t../src/s2/s2shape_measures.h_:o27r:
_In file included from a../src/s2/s1angle.hs:s28i:
gIn file included from n../src/s2/s2point.h_:i25m:
pIn file included from l../src/s2/util/coding/coder.h,: 36&:
&In file included from ,../src/s2/base/casts.h :&34&:
,In file included from  /usr/local/clang/include/absl/log/log.ht:r209u:
eIn file included from ,/usr/local/clang/include/absl/log/internal/log_impl.h :t22r:
uIn file included from e/usr/local/clang/include/absl/log/internal/log_message.h,:
47      :
| In file included from   ^/usr/local/clang/include/absl/log/internal/structured_proto.h
:27:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/log/internal/proto.h133::3452:
:/usr/local/clang/include/absl/types/span.h :799note: :expanded from macro 'ABSL_INTERNAL_X'32
: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]133
 |      799  |  S p a n < cAoBnSsLt_ ITN>T EMRaNkAeLC_oAnTsTtRSIpBaUnT(ET_*C AaPbTsUlR_EnDu_lBlYa(btlhei sb)e)g,i n 
        |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257 |  # d e f i n\e
       a| b                                                   ^s
l_nulla/usr/local/clang/include/absl/container/internal/common.hb:l31e: 9_:N unote: lmacro 'ABSL_INTERNAL_IF_true' defined herel
abl   e31
 |       #| d                      ^e
fine ABSL_INTEIn file included from Rs2/s2shape_measures.ccN:A18L:
_In file included from I../src/s2/s2shape_measures.hF:_27t:
rIn file included from u../src/s2/s1angle.he:(28i:
fIn file included from _../src/s2/s2point.hs:a25t:
iIn file included from s../src/s2/util/coding/coder.hf:i36e:
dIn file included from ,../src/s2/base/casts.h :.34.:
.In file included from )/usr/local/clang/include/absl/log/log.h :i209f:
_In file included from s/usr/local/clang/include/absl/log/internal/log_impl.ha:t22i:
sIn file included from f/usr/local/clang/include/absl/log/internal/log_message.hi:e47d:

In file included from       /usr/local/clang/include/absl/log/internal/structured_proto.h| :        ^27
:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shape_index_buffered_region.cc801: | 33 :
 In file included from  ../src/s2/s2shape_index_region.h : 25 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 45 :
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 211 : 3 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
        211  | T *  AaBbSsLl__InNuTlElRaNbAlLe_ Xe(nidn)s enrote_xocre_pats s{i
g      n| ,                               ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e257r:t23_:o rnote: _expanded from macro 'absl_nullable'a
ss  i257g | n#_diemfpiln,e  &a&b,s l&_&n,u ltlraubel,e  t_rNuuel,l
a      b| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e

      |                         ^212
 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shape_index_buffered_region.cc:33:
In file included from ../src/s2/s2shape_index_region.h:25:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:63:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_index.cc:18:
In file included from ../src/s2/s2shape_index.h:63:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const cIn file included from hs2/s2shapeutil_edge_iterator.cca:r16*:
 In file included from a../src/s2/s2shapeutil_edge_iterator.hb:s22l:
_In file included from n../src/s2/s2shape.ho:n24n:
uIn file included from l../src/s2/base/logging.hl: 21e:
xIn file included from p/usr/local/clang/include/absl/log/check.hr:t37e:
xIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h): 21{:
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 47 :
 In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h\:
27      :
| In file included from                                   ^/usr/local/clang/include/absl/log/internal/proto.h
:34:
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/types/span.h::22212:: 22:note:  expanded from macro 'absl_nonnull'
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]  
241 | #de  f212i | n e  uasbisnlg_ npooninnutlelr  _=N oTn*n ualbls
l      _| n                     ^u
llability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absIn file included from ls2/s2shape_measures.cc_:n18u:
lIn file included from l../src/s2/s2shape_measures.ha:b27l:
eIn file included from  ../src/s2/s1angle.h_:N28u:
lIn file included from l../src/s2/s2point.ha:b25l:
eIn file included from 
../src/s2/util/coding/coder.h      :| 36                      ^:

In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_edge_iterator.cc
:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h  :50622 | :
AIn file included from B../src/s2/s2shape.hS:L24_:
LIn file included from O../src/s2/base/logging.hG:_21I:
NIn file included from T/usr/local/clang/include/absl/log/check.hE:R37N:
AIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:C21H:
EIn file included from C/usr/local/clang/include/absl/log/internal/check_op.hK:_41O:
PIn file included from _/usr/local/clang/include/absl/log/internal/strip.hI:M26P:
LIn file included from (/usr/local/clang/include/absl/log/internal/log_message.hC:h47e:
cIn file included from k/usr/local/clang/include/absl/log/internal/structured_proto.h_:G27E:
,In file included from  /usr/local/clang/include/absl/log/internal/proto.h>:=34):

/usr/local/clang/include/absl/types/span.h      :| 801^:
32: /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]488
:32:   note: 801expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' | 
      488  |      i n l i n e   c o n s t e x p r   c o n sTt*  cahbasrl*_ naublslla_bnluel leanbdl)e  nnoaemxec#e#pItm p{l
(       |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  #\d
e      f| i                               ^n
e /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n unote: lexpanded from macro 'absl_nullable'l
ab  l257e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
ullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
367 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2shapeutil_visit_crossing_edge_pairs.cc -o s2/s2shapeutil_visit_crossing_edge_pairs.o
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
In file included from /usr/local/clang/include/absl/log/internal/vlog_config.h:40:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
383 warnings generated.
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2text_format.cc -o s2/s2text_format.o
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2shape_nesting_query.cc:/usr/local/clang/include/absl/synchronization/mutex.h17::
549In file included from :../src/s2/s2shape_nesting_query.h40::26 :
In file included from warning: ../src/s2/s2shape.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
24:
In file included from ../src/s2/base/logging.h:21:
  In file included from 549/usr/local/clang/include/absl/log/check.h | : 37 :
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.ha:t21i:
cIn file included from  /usr/local/clang/include/absl/log/internal/check_op.hv:o41i:
dIn file included from  /usr/local/clang/include/absl/log/internal/strip.hI:n26c:
rIn file included from e/usr/local/clang/include/absl/log/internal/log_message.hm:e53n:
tS/usr/local/clang/include/absl/types/source_location.hy:n113c:h19S:e mwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
utex*   113a | b s l _ n o ncnounlslt  mcuh,a
r      *|                                         ^a
bsl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'f
il  e241_ | n#admeef i=n e_ _abbusill_tnionn_nFuIlLlE (_)N)o n{n
u      l| l                  ^

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2shape_measures.cce: 18a:
bIn file included from s../src/s2/s2shape_measures.hl:_27n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |              In file included from  s2/s2shape_nesting_query.cc : 17 :
 In file included from  ../src/s2/s2shape_nesting_query.h : 26 :
 In file included from  ../src/s2/s2shape.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
bIn file included from a/usr/local/clang/include/absl/log/check.hs:e37_:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ht:e21r:
nIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hl::41::
PIn file included from e/usr/local/clang/include/absl/log/internal/strip.hr:T26h:
rIn file included from e/usr/local/clang/include/absl/log/internal/log_message.ha:d53S:
y/usr/local/clang/include/absl/types/source_location.hn:c133h:*25 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_no  n133n | u l lc own)s;t
e      x| p                                                               ^r
 co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bfsill_en_onnanmuel(l)  _cNoonnsntu lnlo
e      x| c                     ^e
pt {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2shape_measures.cci:n18e:
 In file included from a../src/s2/s2shape_measures.hb:s27l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: In file included from warning: s2/s2shape_nesting_query.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
17:
In file included from ../src/s2/s2shape_nesting_query.h  :55126 | :
 In file included from  ../src/s2/s2shape.hs:t24a:
tIn file included from i../src/s2/base/logging.hc: 21b:
oIn file included from o/usr/local/clang/include/absl/log/check.hl: 37D:
eIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hr:e21m:
eIn file included from n/usr/local/clang/include/absl/log/internal/check_op.ht:S41y:
nIn file included from c/usr/local/clang/include/absl/log/internal/strip.hh:S26e:
mIn file included from (/usr/local/clang/include/absl/log/internal/log_message.hM:u53t:
e/usr/local/clang/include/absl/types/source_location.hx:*142 :a25b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u142l | l   mcuo,n
s      t| e                                       ^x
pr/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innoen naublsll _fnuonncntuiloln __nNaomnen(u)l lc
o      n| s                     ^t
 noexcept In file included from {s2/s2shape_measures.cc
:      18| :
                        ^In file included from 
../src/s2/s2shape_measures.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s1angle.h::2228::
 In file included from ../src/s2/s2point.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from   ../src/s2/s2coder.h241: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o94n:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:o552n:n64u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  552 |                  In file included from  s2/s2shape_nesting_query.cc : 17 :
 In file included from  ../src/s2/s2shape_nesting_query.h : 26 :
 In file included from  ../src/s2/s2shape.h : 24 :
 In file included from b../src/s2/base/logging.ha:s21e:
_In file included from i/usr/local/clang/include/absl/log/check.hn:t37e:
rIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ha:l21::
:In file included from P/usr/local/clang/include/absl/log/internal/check_op.he:r41T:
hIn file included from r/usr/local/clang/include/absl/log/internal/strip.he:a26d:
SIn file included from y/usr/local/clang/include/absl/log/internal/log_message.hn:c53h:
*/usr/local/clang/include/absl/types/source_location.h :a150b:s40l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l150  | w , 
        |                                                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i nceo nasbts lc_hnaorn*n ualbls l__Nnoonnnnuullll
       f| i                     ^l
e_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2shape_measures.cci:n18e:
 In file included from a../src/s2/s2shape_measures.hb:s27l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSIn file included from ls2/s2shape_nesting_query.cco:w17L:
oIn file included from o../src/s2/s2shape_nesting_query.hp:(26S:
yIn file included from n../src/s2/s2shape.hc:h24W:
aIn file included from i../src/s2/base/logging.ht:P21a:
rIn file included from a/usr/local/clang/include/absl/log/check.hm:s37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_op.ho:n41n:
uIn file included from l/usr/local/clang/include/absl/log/internal/strip.hl: 26w:
aIn file included from i/usr/local/clang/include/absl/log/internal/log_message.ht:p53,:
 /usr/local/clang/include/absl/types/source_location.hi:n165t: 15f:l awarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
);
        165|  |                                      ^ 
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :c hnote: aexpanded from macro 'absl_nonnull'r
*   a241b | s#ld_enfoinnneu lalb sfli_lneo_nnnaumlel_  _=N o"n"n;u
l      l| 
              ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2shape_measures.ccl:l18 :
_In file included from N../src/s2/s2shape_measures.ho:n27n:
uIn file included from l../src/s2/s1angle.hl:
28      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char*: 22a:b slnote: _expanded from macro 'absl_nonnull'n
onnul  l241  | f#idleef_innaem ea b=s l___nbouninlutliln __FNIoLnEn(u)l)l 
{      
|                            ^| 
                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_edge_iterator.cc:  16585:
 | In file included from  ../src/s2/s2shapeutil_edge_iterator.h :v22o:
iIn file included from d../src/s2/s2shape.h :T24r:
aIn file included from n../src/s2/base/logging.hs:(21M:
uIn file included from H/usr/local/clang/include/absl/log/check.ho:w37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.h :h26o:
wIn file included from )/usr/local/clang/include/absl/log/internal/log_message.h;: 53 :
//usr/local/clang/include/absl/types/source_location.h/: 133u:s25e:d  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r Co  n133d | V a rc-o>nMsutteexxp rt rcaonnssfte rc
h      a| r                   ^*
 abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 f  i241l | e#_dneafmien(e)  absclo_nnsotn nnuolelx c_eNpotn n{ull

            | |                         ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2shape_measures.ccn:n18u:
lIn file included from l../src/s2/s2shape_measures.h :_27N:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2shapeutil_edge_iterator.cc586::1643:
:In file included from  ../src/s2/s2shapeutil_edge_iterator.h:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2shape.h:24:
  In file included from 586../src/s2/base/logging.h | : 21 :
vIn file included from o/usr/local/clang/include/absl/log/check.hi:d37 :
FIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:(21b:
aIn file included from s/usr/local/clang/include/absl/log/internal/check_op.he:_41i:
nIn file included from t/usr/local/clang/include/absl/log/internal/strip.he:r26n:
aIn file included from l/usr/local/clang/include/absl/log/internal/log_message.h:::53P:
e/usr/local/clang/include/absl/types/source_location.hr:T142h:r25e:a dwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]y
nch*   142a | b s lc_onnosntneuxlplr
       c| o                                          ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ef uanbcstli_onno_nnnaumlel( )_ Ncoonnnsutl ln
o      e| x                     ^c
ept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2shape_measures.cce:18f:
iIn file included from n../src/s2/s2shape_measures.he: 27a:
bIn file included from s../src/s2/s1angle.hl:_28n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   expIn file included from ls2/s2shapeutil_edge_iterator.cci:c16i:
tIn file included from  ../src/s2/s2shapeutil_edge_iterator.hM:u22t:
eIn file included from x../src/s2/s2shape.h(:c24o:
nIn file included from s../src/s2/base/logging.ht: 21v:
oIn file included from l/usr/local/clang/include/absl/log/check.ha:t37i:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :M21u:
tIn file included from e/usr/local/clang/include/absl/log/internal/check_op.hx:*41 :
aIn file included from b/usr/local/clang/include/absl/log/internal/strip.hs:l26_:
nIn file included from u/usr/local/clang/include/absl/log/internal/log_message.hl:l53a:
b/usr/local/clang/include/absl/types/source_location.hl:e150 :/40*:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
red  *150/ | )   { } 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e fcionnes ta bcshla_rn*u lalbasbll_en o_nNnuulllla bfliel
e      _| n                      ^a
me)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from   ../src/s2/s2shapeutil_edge_iterator.h624: | 22 :
 In file included from e../src/s2/s2shape.hx:p24l:
iIn file included from c../src/s2/base/logging.hi:t21 :
MIn file included from u/usr/local/clang/include/absl/log/check.ht:e37x:
LIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hc:k21(:
MIn file included from u/usr/local/clang/include/absl/log/internal/check_op.ht:e41x:
&In file included from  /usr/local/clang/include/absl/log/internal/strip.hm:u26 :
A/usr/local/clang/include/absl/log/internal/log_message.hB:S78L:_26I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL   _78A | T T RLIoBgUMTeEs_sCaAgPeT(UcRoEnDs_tB Yc(htahri*s )a)b
s      l| _                                                                   ^~~~n
onnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shape_nesting_query.cc::24117::
22In file included from :../src/s2/s2shape_nesting_query.h :26note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shape.h:24  :
241In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.h :_26N:
on/usr/local/clang/include/absl/log/internal/log_message.hn:u179l:l35
:       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  179 |   LogMessage& operatoIn file included from rs2/s2shapeutil_edge_iterator.cc<:<16(:
wIn file included from c../src/s2/s2shapeutil_edge_iterator.hh:a22r:
_In file included from t../src/s2/s2shape.h*: 24a:
bIn file included from s../src/s2/base/logging.hl:_21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :v21):
;In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h      :| 41                                  ^:

In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::25782::2326::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  257    | 82# | d e fLiongeM easbssalg_en(uclolnasbtl ec h_aNru*l laabbslle_
n      o| n                      ^n
ull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2shape_nesting_query.ccu:l17l:

In file included from       ../src/s2/s2shape_nesting_query.h| :                     ^26
:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2shapeutil_edge_iterator.ccu:l16l:

In file included from       ../src/s2/s2shapeutil_edge_iterator.h| :                     ^22
:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogIn file included from Ms2/s2shape_nesting_query.cce:s17s:
aIn file included from g../src/s2/s2shape_nesting_query.he:&26 :
TIn file included from o../src/s2/s2shape.h:24S:
iIn file included from n../src/s2/base/logging.hk:A21l:
sIn file included from o/usr/local/clang/include/absl/log/check.h(:a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h:::21L:
oIn file included from g/usr/local/clang/include/absl/log/internal/check_op.hS:i41n:
kIn file included from */usr/local/clang/include/absl/log/internal/strip.h :a26b:
s/usr/local/clang/include/absl/log/internal/log_message.hl:_191n:o43n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 sin  k191) | ; 
       L| o                                        ^g
Me/usr/local/clang/include/absl/base/nullability.hs:s241a:g22e:&  note: oexpanded from macro 'absl_nonnull'p
er  a241t | o#rd<e<f(isnted :a:bisols__nboansneu&l l( *_aNbosnln_unloln
n      u| l                     ^l
 m)(std::ios_base& os)In file included from )s2/s2shapeutil_edge_iterator.cc;:
16      :
| In file included from                                           ^../src/s2/s2shapeutil_edge_iterator.h
:22:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2shape.h241::2422:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_op.he: 41a:
bIn file included from s/usr/local/clang/include/absl/log/internal/strip.hl:_26n:
o/usr/local/clang/include/absl/log/internal/log_message.hn:n121u:l41l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l121l | 
        | L                     ^o
gMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   In file included from Ls2/s2shape_nesting_query.cco:g17M:
eIn file included from s../src/s2/s2shape_nesting_query.hs:a26g:
eIn file included from &../src/s2/s2shape.h :o24p:
eIn file included from r../src/s2/base/logging.ha:t21o:
rIn file included from </usr/local/clang/include/absl/log/check.h<:(37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
vIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hi:d41*:
 In file included from a/usr/local/clang/include/absl/log/internal/strip.hb:s26l:
_/usr/local/clang/include/absl/log/internal/log_message.hn:u306l:l3a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 v)   {306
 |        |                                       ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 s  t257d | :#:duenfiiqnuee _apbtsrl<_LnouglMleasbslaeg e_DNautlal>a bdlaet
a      _| ;                      ^

      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:/usr/local/clang/include/absl/synchronization/mutex.h11::718 :35warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  398 |     718  |   v oeixdp*l iacbistl _WnruiltlearbMluet ecxoLnosctk&( Mvu)t;e
x      *|            ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 m  u257) | 
#      d| e                                  ^f
ine /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shape_measures.cc:18:
  In file included from 400../src/s2/s2shape_measures.h | : 27 :
 In file included from  ../src/s2/s1angle.hc:o28n:
sIn file included from t../src/s2/s2point.h :v27o:
iIn file included from d../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:a29b:
lIn file included from e/usr/local/clang/include/absl/strings/cord.h :c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht:&31 :
v/usr/local/clang/include/absl/synchronization/mutex.h):;722
:      74| :                ^ 
warning: /usr/local/clang/include/absl/base/nullability.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
257:23: note:   expanded from macro 'absl_nullable'722
 |     257e | x#pdleifciinte  Warbistle_rnMuultleaxbLloec k_(NMuultleaxb&l em
u       | A                      ^B
SL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2shapeutil_edge_iterator.cc../src/s2/s2point.h::1627:
:
In file included from In file included from ../src/s2/s2shapeutil_edge_iterator.h../src/s2/s2coder.h::2223:
:
In file included from In file included from ../src/s2/s2shape.h/usr/local/clang/include/absl/status/status.h::2467:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/strings/cord.h::3794:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::41801:
:In file included from 20/usr/local/clang/include/absl/log/internal/strip.h:: 26:
warning: /usr/local/clang/include/absl/log/internal/log_message.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
426:31:   warning: 801type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  C  o426n | d i tLioognM(ebsosoalg e(F*aatbasll(_cnoonnsntu lclh afru*n ca)b(svlo_indo*n naublsll _fniullel,a biinlti tlyi_nuen,k
n      o| w                              ^n
),/usr/local/clang/include/absl/base/nullability.h
:      241| :                   ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:In file included from 16s2/s2shape_measures.cc:
:In file included from 18../src/s2/s2shapeutil_edge_iterator.h:
:In file included from 22../src/s2/s2shape_measures.h:
:In file included from 27../src/s2/s2shape.h:
:In file included from 24../src/s2/s1angle.h:
:In file included from 28../src/s2/base/logging.h:
:In file included from 21../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/log/internal/log_message.h94::
427In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h31::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
801:45:   427warning:  | type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      801  |      C o n d i t i o n (cboonoslt  (c*haabrs*l _anbosnln_unloln nfuulnlc )f(avioliudr*e _ambssgl)_ nAuBlSlLa_bAiTlTiRtIyB_UuTnEk_nCoOwLnD);,

            | |                               ^                                            ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241289::2234::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullability_unknown'

  241   | 289# | d#edfeifnien ea basbls_ln_onnunlullalb i_lNiotnyn_uulnlk
n      o| w                     ^n
 _Null_unspecified
      |                                  ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802In file included from  | s2/s2shapeutil_edge_iterator.cc  : 16 :
 In file included from  ../src/s2/s2shapeutil_edge_iterator.h : 22 :
 In file included from  ../src/s2/s2shape.h :v24o:
iIn file included from d../src/s2/base/logging.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/check.hl:_37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:a21b:
iIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hi:t41y:
_In file included from u/usr/local/clang/include/absl/log/internal/strip.hn:k26n:
ow/usr/local/clang/include/absl/log/internal/log_message.hn: 436a:r36g:) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                   ^
  436 | /usr/local/clang/include/absl/base/nullability.h : 289L:o34g:M enote: sexpanded from macro 'absl_nullability_unknown's
ageD  e289b | u#gdFeaftianle( caobnsslt_ ncuhlalra*b ialbistly__nuonnknnuolwln  f_iNluel,l
_      u| n                                   ^s
pec/usr/local/clang/include/absl/base/nullability.hi:f241i:e22d:
       | note:                                  ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull In file included from fs2/s2shapeutil_edge_iterator.ccu:n16c:
)In file included from (../src/s2/s2shapeutil_edge_iterator.hT:*22 :
aIn file included from b../src/s2/s2shape.hs:l24_:
nIn file included from u../src/s2/base/logging.hl:l21a:
bIn file included from i/usr/local/clang/include/absl/log/check.hl:i37t:
yIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hu:n21k:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hw:n41):
,In file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26                   ^:

/usr/local/clang/include/absl/log/internal/log_message.h:446/usr/local/clang/include/absl/base/nullability.h::43241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    446241 |  |  # dLeofgiMnees saabgselQ_unioentnluylDle b_uNgoFnantualll(
c      o| n                     ^s
t char*In file included from  s2/s2shape_measures.cca:b18s:
lIn file included from _../src/s2/s2shape_measures.hn:o27n:
nIn file included from u../src/s2/s1angle.hl:l28 :
fIn file included from i../src/s2/s2point.hl:e27,:

In file included from       ../src/s2/s2coder.h| :                                          ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i814n:e42 :a bwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
_no  n814n | u l lC o_nNdointniuolnl(
b      o| o                     ^l
 (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2shapeutil_edge_iterator.cc289::1634:
:In file included from  ../src/s2/s2shapeutil_edge_iterator.h:note: 22expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/s2shape.h:24  :
289In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41a:
bIn file included from i/usr/local/clang/include/absl/log/internal/strip.hl:i26t:
y/usr/local/clang/include/absl/log/internal/log_message.h_:u454n:k38n:o wwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_Nu  l454l | _ u nLsopgeMceisfsiaegde
Q      u| i                                 ^e
tlyFatal(const chaIn file included from rs2/s2shape_measures.cc*: 18a:
bIn file included from s../src/s2/s2shape_measures.hl:_27n:
oIn file included from n../src/s2/s1angle.hn:u28l:
lIn file included from  ../src/s2/s2point.hf:i27l:
eIn file included from ,../src/s2/s2coder.h
:      23| :
                                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e815f:i16n:e  warning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]b
sl_  n815o | n n u l l   _ N o n n u lTl*
       a| b                     ^s
l_nullability_unknown arg);
      |                ^In file included from 
s2/s2shapeutil_edge_iterator.cc:16/usr/local/clang/include/absl/base/nullability.h:
:In file included from 289../src/s2/s2shapeutil_edge_iterator.h::3422::
 In file included from ../src/s2/s2shape.hnote: :expanded from macro 'absl_nullability_unknown'24
:
In file included from ../src/s2/base/logging.h  :28921 | :
#In file included from d/usr/local/clang/include/absl/log/check.he:f37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_op.h_:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.ha:b26i:
l/usr/local/clang/include/absl/log/internal/log_message.hi:t456y:_38u:n kwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
wn   _456N | u l lL_ougnMsepsescaigfeiQeudi
e      t| l                                 ^y
Fatal(const char* absl_noIn file included from ns2/s2shape_measures.ccn:u18l:
lIn file included from  ../src/s2/s2shape_measures.hf:i27l:
eIn file included from ,../src/s2/s1angle.h :i28n:
tIn file included from  ../src/s2/s2point.hl:i27n:
eIn file included from ,../src/s2/s2coder.h
:      23| :
                                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :24131 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e830f:i14n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n830o | n n u l l   _bNooonln u(l*la
b      s| l                     ^_
nonnull fIn file included from us2/s2shapeutil_edge_iterator.ccn:c16):
(In file included from T../src/s2/s2shapeutil_edge_iterator.h*: 22a:
bIn file included from s../src/s2/s2shape.hl:_24n:
uIn file included from l../src/s2/base/logging.hl:a21b:
iIn file included from l/usr/local/clang/include/absl/log/check.hi:t37y:
_In file included from u/usr/local/clang/include/absl/log/internal/check_impl.hn:k21n:
oIn file included from w/usr/local/clang/include/absl/log/internal/check_op.hn:)41,:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :             ^26
:
/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/base/nullability.h::457241::3822::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

    241457 |  | # d e f i n e   a b s l _ n o n n u l l   _ N o n ncuolnls
t       | c                     ^h
ar* In file included from as2/s2shape_measures.ccb:s18l:
_In file included from n../src/s2/s2shape_measures.ho:n27n:
uIn file included from l../src/s2/s1angle.hl: 28f:
aIn file included from i../src/s2/s2point.hl:u27r:
eIn file included from _../src/s2/s2coder.hm:s23g:
)In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 830#:d36e:f iwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
 ab  s830l | _ n o n n u lblo o_lN o(n*naublsll
_      n| o                     ^n
null func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2shape_measures.ccexpanded from macro 'absl_nullable':
18:
  In file included from 257../src/s2/s2shape_measures.h | :#27d:
eIn file included from f../src/s2/s1angle.hi:n28e:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/strings/cord.hl:e94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                      ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<TIn file included from >s2/s2shape_nesting_query.cc:::17t:
yIn file included from p../src/s2/s2shape_nesting_query.he::26::
*In file included from  ../src/s2/s2shape.ha:b24s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
mIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.ht:h21o:
dIn file included from )/usr/local/clang/include/absl/log/internal/check_op.h(:)41):
;In file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26                                            ^:

/usr/local/clang/include/absl/log/internal/log_message.h:340/usr/local/clang/include/absl/base/nullability.h::46241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241340 |  | # d effriineen da bvsoli_dn oAnbnsullFlo r_mNaotnFnluulslh
(      SIn file included from | ts2/s2shapeutil_edge_iterator.cc                     ^r:i
n16g:
iIn file included from f../src/s2/s2shapeutil_edge_iterator.hy:S22i:
nIn file included from k../src/s2/s2shape.h*: 24a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hs:i21n:
kIn file included from ,/usr/local/clang/include/absl/log/internal/check_op.h
s2/s2shape_measures.cc:      :180| 18:                                             ^:
42
In file included from :../src/s2/s2shape_measures.h /usr/local/clang/include/absl/base/nullability.h::warning: 27241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:
In file included from 22../src/s2/s1angle.h:: 28:
note:   expanded from macro 'absl_nonnull'In file included from 180
../src/s2/s2point.h | :A27  B:
241SIn file included from  | L../src/s2/s2coder.h_#:Ad23Te:
fTiIn file included from Rn/usr/local/clang/include/absl/status/status.hIe:B 67Ua:
TbIn file included from Es/usr/local/clang/include/absl/status/internal/status_internal.hl__:Pn29Uo:
RnIn file included from En/usr/local/clang/include/absl/strings/cord.hu_l:Fl94U :
N_In file included from CN/usr/local/clang/include/absl/strings/internal/cordz_info.hTo:In31On:
Nu/usr/local/clang/include/absl/synchronization/mutex.hl l:c
850o      :n| 16s                     ^:t
  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   850a | b s l _ n o ncnounlslt  MTa*k eaCbhselc_knFoaninluSltlr ionbgj(e
c      t| ,                                         ^

      |                ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:In file included from 24s2/s2shape_measures.cc:
:In file included from 18../src/s2/base/logging.h:
:In file included from 21../src/s2/s2shape_measures.h:
:In file included from 27/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2point.h:
:/usr/local/clang/include/absl/log/internal/check_op.h27::
181In file included from :../src/s2/s2coder.h25::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29181:
 | In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
cIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:s31t:
 /usr/local/clang/include/absl/synchronization/mutex.ha:b851s:l45::: Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tus  *851  | a b s l _ n obnonoull l( asbtsalt:u:st,y pceo_nisdte ncthiatry*< Ta>b:s:lt_ynpoen:n:u*l la bpsrle_fnioxn)n;u
l      l|                          ^m
et/usr/local/clang/include/absl/base/nullability.hh:o241d:)22(:) 
      note: | expanded from macro 'absl_nonnull'                                            ^

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shape_measures.cc:18:
In file included from   ../src/s2/s2shape_measures.h181: | 27 :
 In file included from  ../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27a:
bIn file included from s../src/s2/s2coder.hl::23::
SIn file included from t/usr/local/clang/include/absl/status/status.ha:t67u:
sIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hs:t855a:t34u:s ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ons  t855  | c h aerx*p laibcsilt_ nCoonnnduiltli opnr(ecfoinxs)t; 
b      o| o                                                         ^l
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | c#odnedf)i;n
e       | a                                 ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
_N  o241n | n#udlelf
i      n| e                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const In file included from as2/s2shape_measures.ccb:s18l:
:In file included from :../src/s2/s2shape_measures.hS:t27a:
tIn file included from u../src/s2/s1angle.hs:*28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :A67s:
SIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.ha:t29u:
sIn file included from (/usr/local/clang/include/absl/strings/cord.hc:o94n:
sIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl::886::S31t:a twarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
& s  )886  | { 
       e| x                           ^p
li/usr/local/clang/include/absl/base/nullability.hc:i241t: 22C:o nnote: dexpanded from macro 'absl_nonnull'i
ti  o241n | (#cdoenfsitn eT *a basbls_ln_onnonnunlull l_ NoobnjnIn file included from )us2/s2shape_nesting_query.ccl
l:      
17|       :
                              ^| In file included from 
                     ^../src/s2/s2shape_nesting_query.h
:/usr/local/clang/include/absl/base/nullability.h26::
241In file included from :../src/s2/s2shape.h22::24 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
In file included from   /usr/local/clang/include/absl/log/check.h241: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_op.ha:b41s:
lIn file included from _non/usr/local/clang/include/absl/log/internal/strip.hn:u26l:
l/usr/local/clang/include/absl/log/internal/log_message.h In file included from :_s2/s2shapeutil_edge_iterator.cc398N::o1611n:
:nIn file included from  u../src/s2/s2shapeutil_edge_iterator.hwarning: l:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l22

:
      In file included from | ../src/s2/s2shape.h                       ^:398
24 | :
 In file included from  ../src/s2/base/logging.h : 21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l193l:a21b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
onst  &193  | vc)o;n
s      t|            ^a
bsl/usr/local/clang/include/absl/base/nullability.h:::257S:t23a:t unote: expanded from macro 'absl_nullable's
*   a257b | s#ld_enfoinnneu lalb sIn file included from Als2/s2shape_measures.ccs_:Sn18utl:
laIn file included from atb../src/s2/s2shape_measures.hul:es27 (_:
cNIn file included from uol../src/s2/s1angle.hnl:sa28tb:
 lIn file included from ea
../src/s2/s2point.hb      :s| 27                      ^l:

:In file included from :../src/s2/s2coder.hS:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:O67r:
<In file included from T/usr/local/clang/include/absl/status/internal/status_internal.h>:&29 :
sIn file included from )/usr/local/clang/include/absl/strings/cord.h :{94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                    ^:
31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241896In file included from ::s2/s2shape_nesting_query.cc2231:::17  :
note: In file included from warning: expanded from macro 'absl_nonnull'../src/s2/s2shape_nesting_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:
26  :
241In file included from  |   ../src/s2/s2shape.h#896:d | 24e :
f In file included from ie../src/s2/base/logging.hnx:ep21 l:
aiIn file included from bc/usr/local/clang/include/absl/log/check.hsi:lt37_ :
nCIn file included from oo/usr/local/clang/include/absl/log/internal/check_impl.hnn:nd21ui:
ltIn file included from li/usr/local/clang/include/absl/log/internal/check_op.h o:_n41N(o:
cnIn file included from on/usr/local/clang/include/absl/log/internal/strip.hnu:sl26tl:
 
/usr/local/clang/include/absl/log/internal/log_message.hT      :*| 400                      ^:a
17b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u400l | l   o b jc)o
n      s| t                              ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdIn file included from lees2/s2shapeutil_edge_iterator.cc fc:io16nn:
esIn file included from  t../src/s2/s2shapeutil_edge_iterator.ha&:b 22sv:
l)In file included from ;_
../src/s2/s2shape.hn      :| 24                ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
257In file included from :/usr/local/clang/include/absl/log/check.h23::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nullable':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h257: | 202#:d46e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l202_ | n u lelxapblliec i_tN uClhleacbklOep
M      e| s                      ^s
ageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
onnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2shape_nesting_query.ccf:i17n:
eIn file included from  ../src/s2/s2shape_nesting_query.ha:b26s:
lIn file included from _../src/s2/s2shape.hn:u24l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from _/usr/local/clang/include/absl/log/check.hN:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:

In file included from       /usr/local/clang/include/absl/log/internal/check_op.h| :                      ^41
:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425In file included from :s2/s2shape_measures.cc31::18 :
In file included from warning: ../src/s2/s2shape_measures.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s1angle.h:28:
  In file included from 425../src/s2/s2point.h | : 27 :
LIn file included from o../src/s2/s2coder.hg:M  e209s | s a gceoFnastta l23c(:
hcIn file included from ao/usr/local/clang/include/absl/status/status.hnr:*s67 t:
 acIn file included from bh/usr/local/clang/include/absl/status/internal/status_internal.hsa:lr29*_ :
naIn file included from ob/usr/local/clang/include/absl/strings/cord.hsnl:n_94un:
loIn file included from ln/usr/local/clang/include/absl/strings/internal/cordz_info.h n:Nu31lel:
w /usr/local/clang/include/absl/synchronization/mutex.hfSi:tl948re:i,48n :ign (twarning:  )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l;i

n      e| )              ^   
A948B | S /usr/local/clang/include/absl/base/nullability.hL :_bA241oT:ToR22lI: B (Unote: T*expanded from macro 'absl_nonnull'Ea_
bCsO  lL241D_; | n
#u      dl| el                              ^fa
ibnlee/usr/local/clang/include/absl/base/nullability.h  :ae241bv:sa22ll:__ n)note: o(expanded from macro 'absl_nonnull'nc
nounl  sl241t  |  _#CNdooennfdniiuntleil o
anb      *s| l                      ^_an
bosnln_unloln n_uNloln)n u=l ln
u      l| l                     ^p
tr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2shape_nesting_query.ccl:l17 :
_In file included from N../src/s2/s2shape_nesting_query.ho:n26n:
uIn file included from l../src/s2/s2shape.hl:
24      :
| In file included from                      ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shape_measures.cc:18  :
426In file included from  | ../src/s2/s2shape_measures.h : 27L:
oIn file included from g../src/s2/s1angle.hM:e28s:
sIn file included from a../src/s2/s2point.hg:e27F:
aIn file included from t../src/s2/s2coder.ha:l23(:
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.hh:a29r:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l951l: 9f:i lwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 in  t951  | l i nveo,i
d      *|                                ^a
In file included from b/usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_edge_iterator.ccs::l24116_::
n22In file included from u:../src/s2/s2shapeutil_edge_iterator.hl :l22note: a:
bexpanded from macro 'absl_nonnull'In file included from l
../src/s2/s2shape.he:   24a241:
r | In file included from #g../src/s2/base/logging.hd_: e21f=:
i In file included from nn/usr/local/clang/include/absl/log/check.hue:l 37la:
bpsIn file included from lt/usr/local/clang/include/absl/log/internal/check_impl.hr_:;n21o
:
n      n/usr/local/clang/include/absl/log/internal/check_op.hu| :l        ^l226
 :_/usr/local/clang/include/absl/base/nullability.h59N::o257 n:warning: n23type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u:
l lnote: 
expanded from macro 'absl_nullable'        
| 226                     ^ |   
v257o | i#dd eMfaiIn file included from kns2/s2shape_nesting_query.ccee:C 17ha:
ebIn file included from cs../src/s2/s2shape_nesting_query.hkl:O_26pn:
VuIn file included from al../src/s2/s2shape.hll:ua24eb:
SlIn file included from te../src/s2/base/logging.hr :i_21nN:
guIn file included from (l/usr/local/clang/include/absl/log/check.hsl:ta37db:
:lIn file included from :e/usr/local/clang/include/absl/log/internal/check_impl.ho
:s      21t| :
r                      ^In file included from e
/usr/local/clang/include/absl/log/internal/check_op.ha:m41&:
 In file included from o/usr/local/clang/include/absl/log/internal/strip.hs:,26 :
In file included from c/usr/local/clang/include/absl/log/internal/log_message.hs2/s2shape_measures.cco::n42718s::
t31In file included from  :../src/s2/s2shape_measures.hv :o27warning: i:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]dIn file included from 
*../src/s2/s1angle.h :a28  b:
427sIn file included from  | l../src/s2/s2point.h _ : n 27u :
l In file included from l ../src/s2/s2coder.ha :b 23 l :
e In file included from   /usr/local/clang/include/absl/status/status.hp :) 67; :

 In file included from        c/usr/local/clang/include/absl/status/internal/status_internal.ho| n:                                                          ^s29
t:
In file included from  /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.hc::h94257a:
:rIn file included from 23*/usr/local/clang/include/absl/strings/internal/cordz_info.h: : a31note: b:
expanded from macro 'absl_nullable's/usr/local/clang/include/absl/synchronization/mutex.h
l:_954n  o:n25752n | u:#l dlwarning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ff
ianie  l u954ar | be s_ lms_stngau)tl ilAcaB bbSloLeo_ lA_ TNCTuaRllIllBaVUbTolEie_d
CP      Ot| rL                      ^FD
u;n
c      t| i                              ^o
n(/usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  Cnote: oexpanded from macro 'absl_nonnull'n
di  t241i | o#nd*e faibnsel _anbosnln_unloln ncu)l;l
       _| N                                                   ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from 31s2/s2shape_nesting_query.cc:
:17/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 956../src/s2/s2shape_nesting_query.h::5226::
 In file included from ../src/s2/s2shape.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]24
:
In file included from ../src/s2/base/logging.h:21  :
956In file included from  | /usr/local/clang/include/absl/log/check.h : 37s:
tIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.ht:i21c:
 In file included from b/usr/local/clang/include/absl/log/internal/check_op.ho:o41l:
 In file included from C/usr/local/clang/include/absl/log/internal/strip.ha:s26t:
A/usr/local/clang/include/absl/log/internal/log_message.hn:d436C:a36l:l Fwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
cti  o436n | ( c oLnosgtM eIn file included from Css2/s2shapeutil_edge_iterator.ccos:ang16de:
DieIn file included from bt../src/s2/s2shapeutil_edge_iterator.hiu:og22Fn:
*aIn file included from t a../src/s2/s2shape.hal:b(24cs:
loIn file included from n_../src/s2/base/logging.hns:to 21cn:
nhIn file included from aur/usr/local/clang/include/absl/log/check.hl*:l 37 a:
cbIn file included from s)/usr/local/clang/include/absl/log/internal/check_impl.hl;:_
n21o      :
| /usr/local/clang/include/absl/log/internal/check_op.h                                                   ^:
n276n:u/usr/local/clang/include/absl/base/nullability.h13l::l241  :warning: f22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i:l
e ,note: 
  expanded from macro 'absl_nonnull'      276
|  |                                    ^  c
241o | n#/usr/local/clang/include/absl/base/nullability.hsd:te241 f:vi22on:ied  *note: a expanded from macro 'absl_nonnull'ba
sbls  _l241n_ | on#ndunelulflialnb le_ eNa obosnpln_enuorlnanltu
ol      rl|  <                     ^<_
(Nsotndn:u:lols
t      r| e                     ^a
m&,
      In file included from | s2/s2shape_measures.cc            ^:
18:
In file included from ../src/s2/s2shape_measures.h/usr/local/clang/include/absl/base/nullability.h::27257:
:In file included from 23../src/s2/s1angle.h:: 28:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2point.h
:27:
  In file included from 257../src/s2/s2coder.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/status/status.hi:n67e:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31 :
_/usr/local/clang/include/absl/synchronization/mutex.hN:u958l:l50a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                       ^
  958 |   staticIn file included from  s2/s2shapeutil_edge_iterator.ccb:o16o:
lIn file included from  ../src/s2/s2shapeutil_edge_iterator.hC:a22s:
tIn file included from A../src/s2/s2shape.hn:d24C:
aIn file included from l../src/s2/base/logging.hl:M21e:
tIn file included from h/usr/local/clang/include/absl/log/check.ho:d37(:
cIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:s21t:
 /usr/local/clang/include/absl/log/internal/check_op.hC:o277n:d50i:t iwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
* ab  s277l | _ n o n n u l l   c ) ; 
        |                                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i nceo nasbts lv_oniodn*n ualbls l__Nnounlnlualbll
e       | v                     ^a
lue);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'In file included from 
s2/s2shape_measures.cc:18  :
257In file included from  | ../src/s2/s2shape_measures.h#:d27e:
fIn file included from i../src/s2/s1angle.hn:e28 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from u../src/s2/s2coder.hl:l23a:
bIn file included from l/usr/local/clang/include/absl/status/status.he: 67_:
NIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a:
bIn file included from l/usr/local/clang/include/absl/strings/cord.he:
94      :
| In file included from                       ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   statiIn file included from cs2/s2shapeutil_edge_iterator.cc :b16o:
oIn file included from l../src/s2/s2shapeutil_edge_iterator.h :C22a:
lIn file included from l../src/s2/s2shape.hB:y24R:
eIn file included from f../src/s2/base/logging.h(:c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37T:
*In file included from  /usr/local/clang/include/absl/log/internal/check_impl.ha:b21s:
l/usr/local/clang/include/absl/log/internal/check_op.h_:n278o:n13n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
self  )278  | {c
o      n| s                                 ^t
 v/usr/local/clang/include/absl/base/nullability.ho:i241dIn file included from :*s2/s2shape_nesting_query.cc22 :a:17b :
sIn file included from note: l../src/s2/s2shape_nesting_query.hexpanded from macro 'absl_nonnull'_:
n26u:
  lIn file included from 241l../src/s2/s2shape.h | a:#b24dlee:
f In file included from io../src/s2/base/logging.hnp:ee21 r:
aabIn file included from ts/usr/local/clang/include/absl/log/check.hol:r_<37n<:
o(In file included from ns/usr/local/clang/include/absl/log/internal/check_impl.hnt:ud21l::
l:In file included from  o/usr/local/clang/include/absl/log/internal/check_op.h_s:Nt41or:
neIn file included from na/usr/local/clang/include/absl/log/internal/strip.hum:l&26l,:

       /usr/local/clang/include/absl/log/internal/log_message.hs| :t                     ^446d
:::43n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
tr_t  )446; | 
        | L            ^o
gM/usr/local/clang/include/absl/base/nullability.he:s257s:a23g:e Qnote: uexpanded from macro 'absl_nullable'i
et  lIn file included from 257ys2/s2shape_measures.cc | D:#e18db:
euIn file included from gf../src/s2/s2shape_measures.hiF:na27et:
 aIn file included from la(../src/s2/s1angle.hcbo:sn28ls:
_tIn file included from  nc../src/s2/s2point.hhua:lr27l*:
a In file included from ba../src/s2/s2coder.hlb:es23l :
__In file included from nN/usr/local/clang/include/absl/status/status.huo:ln67nlu:
lalIn file included from b /usr/local/clang/include/absl/status/internal/status_internal.hlf:ei29l
:
e      In file included from ,| /usr/local/clang/include/absl/strings/cord.h
                      ^:      
94| :
                                          ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/synchronization/mutex.h241::97522::31 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #975d | e f iinnel ianbes lv_oniodn nRuelald C_aNlolnbnauclkl(
T      *|                       ^a
bsl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2shape_nesting_query.ccl:l17
:
      In file included from | ../src/s2/s2shape_nesting_query.h                     ^:
26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2shapeutil_edge_iterator.cc                     ^:
16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: In file included from warning: s2/s2shape_measures.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2shape_measures.h:27:
  In file included from 292../src/s2/s1angle.h | :c28o:
nIn file included from s../src/s2/s2point.ht: 27c:
In file included from h../src/s2/s2coder.ha:r23*:
 In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94o:
pIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hr:a31t:
o/usr/local/clang/include/absl/synchronization/mutex.hr:<1093<:(46s:t dwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
bas i1093c | _ o svtorieda mR<ecmhoavre,( bTarsaei_tisn>t&e,r
n      a| l            ^:
:Pe/usr/local/clang/include/absl/base/nullability.hr:T241h:r22e:a dnote: Sexpanded from macro 'absl_nonnull'y
nc  h241* |  #adbesfli_nneo nanbuslll_ nso)n;n
u      l| l                                             ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
note:       expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_In file included from ns2/s2shapeutil_edge_iterator.cco:n16n:
uIn file included from l../src/s2/s2shapeutil_edge_iterator.hl: 22_:
NIn file included from o../src/s2/s2shape.hn:n24u:
lIn file included from l../src/s2/base/logging.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  41295:
 | In file included from c/usr/local/clang/include/absl/log/internal/strip.ho:n26s:
t/usr/local/clang/include/absl/log/internal/log_message.h :s454i:g38n:In file included from e s2/s2shape_measures.ccd:warning:  18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:

hIn file included from a../src/s2/s2shape_measures.hr:*27   :
454aIn file included from  | b../src/s2/s1angle.h s :lL28_o:
ngIn file included from oM../src/s2/s2point.hne:ns27us:
laIn file included from lg../src/s2/s2coder.h e:oQ23pu:
eiIn file included from re/usr/local/clang/include/absl/status/status.hat:tl67oy:
rFIn file included from <a/usr/local/clang/include/absl/status/internal/status_internal.h<t:(a29sl:
t(In file included from dc/usr/local/clang/include/absl/strings/cord.h:o:n:s94bt :
cIn file included from ah/usr/local/clang/include/absl/strings/internal/cordz_info.hsa:ir31c*:
_ /usr/local/clang/include/absl/synchronization/mutex.hoa:sb1109ts:rl34e_:an mowarning: <ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]cn
hualr l, 1109 f | Ti rl aeei,xt
psl      >i| &c                                     ^,i

t       | M/usr/local/clang/include/absl/base/nullability.h                   ^u:
t241e:/usr/local/clang/include/absl/base/nullability.hx22:L:241o :cnote: 22kexpanded from macro 'absl_nonnull':M
 anote: y  expanded from macro 'absl_nonnull'b241
e | (#  Md241ue | tf#eidxne*ef  iaanbbess lla__bnnsuolln_lnnauoblnllne u _lmNluo )n_
nN      uo| ln                                 ^ln

u      l| /usr/local/clang/include/absl/base/nullability.hl                     ^:

257      :| 23                     ^:
 note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2shapeutil_edge_iterator.ccs:l16_:
nIn file included from u../src/s2/s2shapeutil_edge_iterator.hl:l22a:
bIn file included from l../src/s2/s2shape.he: 24_:
In file included from NIn file included from s2/s2shape_nesting_query.ccu../src/s2/base/logging.h:l:17l21:
a:
bIn file included from In file included from l../src/s2/s2shape_nesting_query.h/usr/local/clang/include/absl/log/check.he::
2637      :
:
| In file included from In file included from                       ^../src/s2/s2shape.h/usr/local/clang/include/absl/log/internal/check_impl.h
::2421:
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/check_op.h::21296:
:In file included from 63/usr/local/clang/include/absl/log/check.h:: 37:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h  :29641 | :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h :In file included from  456s2/s2shape_measures.cc :: 38 18: :
  In file included from  ../src/s2/s2shape_measures.hwarning:  :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 27
 :
 In file included from  ../src/s2/s1angle.h   :456 28 |  :
  In file included from   ../src/s2/s2point.h L: o27 g:
 MIn file included from  e../src/s2/s2coder.h s: s23 a:
 gIn file included from  e/usr/local/clang/include/absl/status/status.h Q: u67 i:
 eIn file included from  t/usr/local/clang/include/absl/status/internal/status_internal.h l: y29 F:
 aIn file included from ct/usr/local/clang/include/absl/strings/cord.hoa:nl94s(:
tcIn file included from  o/usr/local/clang/include/absl/strings/internal/cordz_info.hsn:is31gt:
n /usr/local/clang/include/absl/synchronization/mutex.hec:dh1117 a:cr34h*:a  rawarning: *btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] s
alb_sn oln1117_n | nu o lnelnx ufplilllie)c,;i
 t       i| nM                                                              ^tu 
tle/usr/local/clang/include/absl/base/nullability.hix:nL241eo:,c22k
:M       a| note: y                                     ^expanded from macro 'absl_nonnull'b

e(/usr/local/clang/include/absl/base/nullability.h  M:241u241 | t:#e22dx:e* f note: iaexpanded from macro 'absl_nonnull'nb
es   la241_b | ns#uldl_elnfaoibnnlneeu  lamlbu s,l_ _Ncnooonnnnsnuutll llC 
o_      Nno| dni                     ^ntu
ill
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from In file included from s2/s2shapeutil_edge_iterator.cc../src/s2/base/logging.h::1621:
:
In file included from In file included from ../src/s2/s2shapeutil_edge_iterator.h/usr/local/clang/include/absl/log/check.h::2237:
:
In file included from In file included from ../src/s2/s2shape.h/usr/local/clang/include/absl/log/internal/check_impl.h::2421:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/internal/check_op.h::2141:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/strip.h::3726:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/log/internal/check_impl.h::45721::
38:/usr/local/clang/include/absl/log/internal/check_op.h :298warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]457
 |       298  |  c o n s t   u n s i g n e d   c h a r *c oanbsstlo _cnnh&oa rnc*n oaunblsdll)_ n
oo      pn| en                                 ^url
alt o/usr/local/clang/include/absl/base/nullability.hrf:<a257<i:(l23su:rte d_note: :mexpanded from macro 'absl_nullable's:g
b)a
s  i      257c|  | _                                     ^#o
dset/usr/local/clang/include/absl/base/nullability.hrf:ei241an:me<22 c:ah banote: srexpanded from macro 'absl_nonnull'l,_
 nTu  rl241al | iat#bsld>e&e ,f_
iNn      ue|  la                     ^lb
salb_/usr/local/clang/include/absl/base/nullability.hln:oe241
n:n      22u| l:                      ^l 
 note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18In file included from :
s2/s2shapeutil_edge_iterator.ccIn file included from :../src/s2/s2shape_measures.h16::
27In file included from :
../src/s2/s2shapeutil_edge_iterator.hIn file included from :../src/s2/s1angle.h22::
28In file included from :
../src/s2/s2shape.hIn file included from :../src/s2/s2point.h24::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/cord.h299::9467:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/synchronization/mutex.h:1132:  10299: |   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     1132  |      M u t e x *   a b s l _ n u l l a b l e   c o n s t   m u _ ; 
        |           ^c
on/usr/local/clang/include/absl/base/nullability.hs:t257 :u23n:s inote: gexpanded from macro 'absl_nullable'n
ed   257c | h#adre*f ianbes la_bnsoln_nnuullll)a;b
l      e|                                                                    ^_
Nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e 
      note: | expanded from macro 'absl_nonnull'                      ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2shape_nesting_query.cca:b17s:
lIn file included from _../src/s2/s2shape_nesting_query.hn:o26n:
nIn file included from u../src/s2/s2shape.hl:l24 :
_In file included from N../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:
37      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42:In file included from  s2/s2shape_measures.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2shape_measures.h:27:
In file included from   ../src/s2/s1angle.h180: | 28A:
BIn file included from S../src/s2/s2point.hL:_27A:
TIn file included from T../src/s2/s2coder.hR:I23B:
UIn file included from TIn file included from /usr/local/clang/include/absl/status/status.hEs2/s2shapeutil_edge_iterator.cc_:P:U67R16E:
:
_In file included from FIn file included from ../src/s2/s2shapeutil_edge_iterator.hU/usr/local/clang/include/absl/status/internal/status_internal.hN::C22T29:
I:
OIn file included from In file included from N../src/s2/s2shape.h/usr/local/clang/include/absl/strings/cord.h :c:24o94n:
s:
tIn file included from  In file included from ../src/s2/base/logging.hc/usr/local/clang/include/absl/strings/internal/cordz_info.hh::a21r31:
*:
 In file included from /usr/local/clang/include/absl/synchronization/mutex.ha/usr/local/clang/include/absl/log/check.hb::s1230l37:_:
n34In file included from o:n/usr/local/clang/include/absl/log/internal/check_impl.hn :uwarning: l21type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l:
 
M/usr/local/clang/include/absl/log/internal/check_op.ha:k323 e:C123046h | e: c k warning:  Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a 
bioloSlt   r323(i | n* ag (bf
sr      li_| en                                         ^no
dn nv/usr/local/clang/include/absl/base/nullability.huol:il241d : f22Au:bn scnote: l)expanded from macro 'absl_nonnull'F(
oTr*  m 241aa | t#bFdslelu_fsinhnue(l Saltbarsbiiln_lgniiotfnyyn_Suuilnnlkk n_*oN woannbn)su,ll
_l      n
| o                                       ^n| 
n                     ^u
/usr/local/clang/include/absl/base/nullability.hl:l289 :s34i:n knote: ,expanded from macro 'absl_nullability_unknown'
In file included from 
      s2/s2shape_nesting_query.cc| :                                               ^17289
:
 | In file included from #../src/s2/s2shape_nesting_query.h/usr/local/clang/include/absl/base/nullability.hd::e26f241:
i:In file included from n22../src/s2/s2shape.he::  24a:
note: bIn file included from expanded from macro 'absl_nonnull's../src/s2/base/logging.h
l:_21  n:
241uIn file included from  | l/usr/local/clang/include/absl/log/check.h#l:da37eb:
fiIn file included from il/usr/local/clang/include/absl/log/internal/check_impl.hni:et21 y:
a_/usr/local/clang/include/absl/log/internal/check_op.hbu:sn181lk:_n25no:ow nnwarning: n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u_
lNlu l  _l181N_ | ou nnn su p lcelocn
is      tf|  ia                     ^bes
dl
:      :| S                                 ^t
atus* absl_nonnIn file included from us2/s2shape_measures.ccl:l18 :
sIn file included from t../src/s2/s2shape_measures.ha:t27u:
sIn file included from ,../src/s2/s1angle.h :c28o:
nIn file included from s../src/s2/s2point.ht: 27c:
hIn file included from a../src/s2/s2coder.hr:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :p94r:
eIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:x31):
;/usr/local/clang/include/absl/synchronization/mutex.h
:      1231| :                        ^8
: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]241
:22:  1231note:  | expanded from macro 'absl_nonnull' 
     241T | *# daebfsiln_en ualblsalb_inlointnyu_luln k_nNoownnn ualrlg
)      
|                            ^| 
       ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'In file included from 
s2/s2shape_nesting_query.cc:17:
  In file included from 289../src/s2/s2shape_nesting_query.h | :#26d:
eIn file included from f../src/s2/s2shape.hi:n24e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hi:l21i:
t/usr/local/clang/include/absl/log/internal/check_op.hy:_181u:n58k:n owarning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
 _Nu  l181l | _ u n s pceocnisfti eadb
s      l| :                                 ^:
Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2shape_measures.ccs:l18_:
nIn file included from o../src/s2/s2shape_measures.hn:n27u:
lIn file included from l../src/s2/s1angle.h :_28N:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from 
../src/s2/s2coder.h      :| 23                     ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2shape_nesting_query.cc1241: | 17 :
 In file included from  ../src/s2/s2shape_nesting_query.h :b26o:
oIn file included from l../src/s2/s2shape.h :(24*:
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :f21u:
n/usr/local/clang/include/absl/log/internal/check_op.hc:)189(:T28*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_nu  l189l | aibnilliintey _cuonnksnto wanb)s,l
:      :| S           ^t
at/usr/local/clang/include/absl/base/nullability.hu:s241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fAisnSet aatbussl(_cnoonnsntu labsl::Status& s) {
l       | _                           ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #defIn file included from ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnullIn file included from  s2/s2shapeutil_edge_iterator.ccA:s16S:
tIn file included from a../src/s2/s2shapeutil_edge_iterator.ht:u22s:
(In file included from c../src/s2/s2shape.ho:n24s:
tIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from :/usr/local/clang/include/absl/log/check.h::S37t:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hu:s21O:
r</usr/local/clang/include/absl/log/internal/check_op.hT:>428&: 44s:)  warning: {type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                     ^
  /usr/local/clang/include/absl/base/nullability.h428: | 241A:B22S:L _note: Aexpanded from macro 'absl_nonnull'T
TR  I241B | U#TdEe_fRiEnTeU RaNbSs_lN_OnNoNnUnLuLl lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2shape_nesting_query.ccs:l17_:
nIn file included from o../src/s2/s2shape_nesting_query.hn:n26u:
lIn file included from l../src/s2/s2shape.h :_24N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_edge_iterator.cc
:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h  :20222 | :
 In file included from  ../src/s2/s2shape.he:x24p:
lIn file included from i../src/s2/base/logging.hc:i21t:
 In file included from C/usr/local/clang/include/absl/log/check.hh:e37c:
kIn file included from O/usr/local/clang/include/absl/log/internal/check_impl.hp:M21e:
s/usr/local/clang/include/absl/log/internal/check_op.hs:a429g:e31B:u iwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
er(c  o429n | s t   c hTa1r *v 1a,b sTl2_ nvo2n,n ucloln setx pcrhtaerx*t )a;b
s      l| _                                             ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :e xnote: pexpanded from macro 'absl_nonnull'r
te  x241t | )# dAeBfSiLn_eA TaTbRsIlB_UnToEn_nNuOlIlN L_INNoEn;n
u      l| l                              ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.hIn file included from :s2/s2shapeutil_edge_iterator.cc37::
16In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2shapeutil_edge_iterator.h21::
22:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2shape.h209::2415:
:In file included from  ../src/s2/base/logging.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/check.h:37  :
209In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h : 21c:
o/usr/local/clang/include/absl/log/internal/check_op.hn:s432t: 13c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s432l | _cnoonnsntu lclh aNre*w Satbrsiln_gn(o)n;n
u      l| l              ^ 
Ma/usr/local/clang/include/absl/base/nullability.hk:e241C:h22e:c knote: Oexpanded from macro 'absl_nonnull'p
St  r241i | n#gd(eTf1i nve1 ,a bTs2l _vn2o,n
n      u| l            ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.hs2/s2shape_measures.cc:24::
18In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2shape_measures.h21::
27In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s1angle.h37::
28In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2point.h21::
27:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2coder.h433::2356:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:  94433:
 | In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h In file included from : 31s2/s2shape_nesting_query.cc :
: 17/usr/local/clang/include/absl/synchronization/mutex.h :
: In file included from 1241 ../src/s2/s2shape_nesting_query.h: : 3426 ::
  In file included from  warning: ../src/s2/s2shape.h :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 24
 :
 In file included from  ../src/s2/base/logging.h :  211241 :
 |  In file included from   /usr/local/clang/include/absl/log/check.h  :  37  :
b In file included from o /usr/local/clang/include/absl/log/internal/check_impl.ho :l 21  :
( */usr/local/clang/include/absl/log/internal/check_op.h a: b226 s: l59 _: n  owarning:  ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] n
 u lclo n  fs226ut | n vcco)hi(adT r**M  aakabebCsshlle__cnnkuoOlnplnVauablluilelS tiretixynpg_(rustntekdx:nt:o)ow sn{t)
r,e      
a| m                                                             ^&|  
                                 ^o
s,/usr/local/clang/include/absl/base/nullability.h :/usr/local/clang/include/absl/base/nullability.hc241:o:n289s22t:: 34v :o inote: dnote: expanded from macro 'absl_nonnull'*expanded from macro 'absl_nullability_unknown'
 
a  b241  s | l289#_ | dn#eudlfelifnaiebnl eea  baps)b;l
s_      ln| _o                                                          ^nn
unlul/usr/local/clang/include/absl/base/nullability.hla:lb257 i:_l23Ni:ot nynote: n_expanded from macro 'absl_nullable'uu
lnlk  
n257      o | | w#                     ^nd
e f_iNnuel la_busnls_pneuclilfaibelde
       _| N                                 ^u
llable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #dIn file included from es2/s2shapeutil_edge_iterator.ccf:i16n:
eIn file included from  ../src/s2/s2shapeutil_edge_iterator.ha:b22s:
lIn file included from _../src/s2/s2shape.hn:u24l:
lIn file included from a../src/s2/base/logging.hb:i21l:
iIn file included from t/usr/local/clang/include/absl/log/check.hy:_37u:
nIn file included from k/usr/local/clang/include/absl/log/internal/check_impl.hn:o21w:
n/usr/local/clang/include/absl/log/internal/check_op.h :_451N:u1l:l _warning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
spec  i451f | iAeBdS
L      _| L                                 ^O
In file included from Gs2/s2shape_nesting_query.cc_:I17N:
TIn file included from E../src/s2/s2shape_nesting_query.hR:N26A:
LIn file included from _../src/s2/s2shape.hD:E24F:
IIn file included from N../src/s2/base/logging.hE:_21M:
AIn file included from K/usr/local/clang/include/absl/log/check.hE:_37C:
HIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.hC:K21_:
O/usr/local/clang/include/absl/log/internal/check_op.hP:_276S:T13R:I Nwarning: Gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
EXTIn file included from   Es2/s2shape_measures.cc276R: | N18c(:
obnIn file included from os../src/s2/s2shape_measures.hot: lv27)o:
;iIn file included from 
d../src/s2/s1angle.h*      : | a28^b:
s
lIn file included from _../src/s2/s2point.hn/usr/local/clang/include/absl/log/internal/check_op.h:u:l27l449:
a:bIn file included from l31e../src/s2/s2coder.h ::o 23p:
enote: In file included from rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a/usr/local/clang/include/absl/status/status.h
t:o67r:
  <In file included from <449(/usr/local/clang/include/absl/status/internal/status_internal.hs | t: d29 ::
e:In file included from xo/usr/local/clang/include/absl/strings/cord.hts:et94rr:
neIn file included from  a/usr/local/clang/include/absl/strings/internal/cordz_info.htm:e&31m,:
p
/usr/local/clang/include/absl/synchronization/mutex.hl      :| 1249            ^:a
8t:e /usr/local/clang/include/absl/base/nullability.h :warning: c257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:
n23s: t 1249  | cnote:  hexpanded from macro 'absl_nullable' a
 r *  T 257a* | b #sdalebf_sinnloe_ nnanobunslln_lnu ullMlla akobeblCej h_eNecuctlkl,Oa
pb      lSe| t       ^
r
      i| n/usr/local/clang/include/absl/base/nullability.hg                      ^:(
241 : 22 :\ 
note:       expanded from macro 'absl_nonnull'| In file included from 
                              ^s2/s2shape_nesting_query.cc
:  17241:
/usr/local/clang/include/absl/base/nullability.h | In file included from :#../src/s2/s2shape_nesting_query.h241d:e:26f22:
i:In file included from n ../src/s2/s2shape.he:note:  24expanded from macro 'absl_nonnull'a:

bIn file included from s../src/s2/base/logging.h  l:241_21n | :
o#In file included from nd/usr/local/clang/include/absl/log/check.hne:uf37li:
lnIn file included from  e/usr/local/clang/include/absl/log/internal/check_impl.h_ :Na21ob:
ns/usr/local/clang/include/absl/log/internal/check_op.hnl:u_277ln:lo50
n:      n | uwarning:                      ^ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
l
 _N  o277n | n u l l 
        |                       ^ 
  In file included from  s2/s2shape_measures.cc : 18 :
In file included from  In file included from  s2/s2shapeutil_edge_iterator.cc ../src/s2/s2shape_measures.h: : 1627 :
 :
In file included from  In file included from  ../src/s2/s2shapeutil_edge_iterator.h ../src/s2/s1angle.h : : 2228 :
 :
In file included from  In file included from  ../src/s2/s2shape.h../src/s2/s2point.h : : 24 27:
 :
 In file included from In file included from c../src/s2/base/logging.ho../src/s2/s2coder.hn:s:21t23:
 :
vIn file included from oIn file included from /usr/local/clang/include/absl/log/check.hi/usr/local/clang/include/absl/status/status.hd::*37 67a:
b:
sIn file included from lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/internal/status_internal.hn::u21l29:
l:
/usr/local/clang/include/absl/log/internal/check_op.haIn file included from b:l/usr/local/clang/include/absl/strings/cord.h451e: :94v1a:
:lIn file included from u /usr/local/clang/include/absl/strings/internal/cordz_info.he:)warning: 31;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
:

      /usr/local/clang/include/absl/synchronization/mutex.h| /usr/local/clang/include/absl/log/internal/check_op.h:                                                 ^:1250
450::43/usr/local/clang/include/absl/base/nullability.h25::: 257 :warning: 23note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
 
note: expanded from macro 'absl_nullable'   
4501250 |  |     257    |   #  bd eoxof,li n ex(, a abbcssolln_s:tn: utlcylhpaaebr_*li ed ae_bNnsutlllia_tbnlyoe<nT
n>      u:| l                      ^:l
t)y
p      e| :                        ^:
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
In file included from u  s2/s2shape_nesting_query.ccl241:l | 17 #:
mdIn file included from ee../src/s2/s2shape_nesting_query.htf:hi26no:
edIn file included from  )../src/s2/s2shape.ha(:b)24s):
l
In file included from _      ../src/s2/base/logging.hn| :o                                          ^21n
n:
uIn file included from l/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.hl:: 24137_::
N22In file included from o:/usr/local/clang/include/absl/log/internal/check_impl.hn :n21note: u:
expanded from macro 'absl_nonnull'l/usr/local/clang/include/absl/log/internal/check_op.h
l:
278        :241| 13 |                      ^:#
 dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine   278a | cbosnls_tn ovnoniudl*l  a_bNsoln_nnuullllIn file included from 
as2/s2shapeutil_edge_iterator.ccb      l:e|  16                     ^o:
p
eIn file included from r../src/s2/s2shapeutil_edge_iterator.ha:t22o:
rIn file included from <../src/s2/s2shape.h<:(24s:
tIn file included from d../src/s2/base/logging.h:::21o:
sIn file included from t/usr/local/clang/include/absl/log/check.hr:e37a:
mIn file included from &/usr/local/clang/include/absl/log/internal/check_impl.h,: 21s:
t/usr/local/clang/include/absl/log/internal/check_op.hd::452::n1u:l lwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
r_t)  ;452
 |       A| B            ^S
L_/usr/local/clang/include/absl/base/nullability.hL:O257G:_23I:N Tnote: Eexpanded from macro 'absl_nullable'R
NA  L257_ | D#EdFeIn file included from Ifs2/s2shape_measures.ccNi:nE18e_ :
MaIn file included from AbK../src/s2/s2shape_measures.hsEl:__27nCu:
lHIn file included from El../src/s2/s1angle.haC:bKl28_e:
O In file included from _PN../src/s2/s2point.h_uS:lTl27Ra:
bIIn file included from Nl../src/s2/s2coder.hGe:_
23E      :
X| In file included from T                      ^/usr/local/clang/include/absl/status/status.hE
:R67N:
(In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:t296:
4In file included from /usr/local/clang/include/absl/strings/cord.h_:t94):
;In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31^:

/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/log/internal/check_op.h1259::44914::31 : warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'

   1259449 |  |      e xctoenrsnt  tTe*m palbastle_ ncoonnnsutl lc hoabrj*e catb,s
l      _| n             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22M:a knote: eexpanded from macro 'absl_nonnull'C
he  c241k | O#pdSetfriinneg (a In file included from b s2/s2shape_nesting_query.ccs :l\17_
:
n      In file included from o| ../src/s2/s2shape_nesting_query.hn                              ^:n
26u:
/usr/local/clang/include/absl/base/nullability.hlIn file included from :l../src/s2/s2shape.h241 ::_2422N:
:oIn file included from  n../src/s2/base/logging.hnote: n:expanded from macro 'absl_nonnull'u21
l:
lIn file included from   
/usr/local/clang/include/absl/log/check.h241      : | | 37#                     ^:
d
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b292s:l13_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nIn file included from 
us2/s2shape_measures.ccl:l18   :
292_In file included from  | N../src/s2/s2shape_measures.hoc:on27nn:
suIn file included from tl../src/s2/s1angle.h lc:h
a28r      :
*| In file included from                      ^ ../src/s2/s2point.ha
:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hIn file included from l:s2/s2shapeutil_edge_iterator.ccl67 ::
o16In file included from p:
/usr/local/clang/include/absl/status/internal/status_internal.heIn file included from :r../src/s2/s2shapeutil_edge_iterator.h29a::
t22In file included from o:
/usr/local/clang/include/absl/strings/cord.hrIn file included from :<../src/s2/s2shape.h94<::
(24In file included from s:
/usr/local/clang/include/absl/strings/internal/cordz_info.htIn file included from :d../src/s2/base/logging.h31:::
:21/usr/local/clang/include/absl/synchronization/mutex.hb:
:aIn file included from 1260s/usr/local/clang/include/absl/log/check.h:i:43c37:_:
 oIn file included from warning: s/usr/local/clang/include/absl/log/internal/check_impl.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t:
r21e:
a/usr/local/clang/include/absl/log/internal/check_op.h m:1260<452 | c: h1 a: r  ,warning: b type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oT
orl/usr/local/clang/include/absl/log/internal/check_op.ha i:(t450sa>:b&25s,:l
 :      note: :| expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN't            ^
y
p  e/usr/local/clang/include/absl/base/nullability.h450_: | i241 d: e22 n: t  inote:  texpanded from macro 'absl_nonnull'y
<T  >241: | :#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21t:
In file included from /usr/local/clang/include/absl/log/check.h:37y:
pIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h:::21*:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b293s:l49_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull m  e293t | h o d ) ( ) 
        |                                            ^ 
     /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
       241  |  # d e f i nceo nasbts lc_hnaorn*n ualbls l__Nnoonnnnuullll
)      ;| 
                     ^      
|                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shape_nesting_query.ccs2/s2shape_measures.cc::1718:
:
In file included from In file included from ../src/s2/s2shape_nesting_query.h../src/s2/s2shape_measures.h::2627:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s1angle.h::2428:
:
xIn file included from In file included from ../src/s2/base/logging.h../src/s2/s2point.h,:: 2127x:
:
,In file included from In file included from  /usr/local/clang/include/absl/log/check.h../src/s2/s2coder.hc::o3723n:
:
sIn file included from In file included from t/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/status.h ::c2167h:
:
aIn file included from /usr/local/clang/include/absl/log/internal/check_op.hr/usr/local/clang/include/absl/status/internal/status_internal.h:*:295 29:a:
20bIn file included from :s/usr/local/clang/include/absl/strings/cord.h l:warning: _94type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n:

oIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hn:  u31295l:
 | l/usr/local/clang/include/absl/synchronization/mutex.hc)o:
n1279s      :t|  35                        ^s:i
g nwarning: e/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d: 
c241h:a22r: * 1279 note: a | expanded from macro 'absl_nonnull'vb
soli_  dn241 o | nR#nedugeliflsit noeepr eMarubatsetlox_rPn<ro<on(fnsiutlldel:r (:_vbNaoosinidnc u_(l*olsa
tb      sr| le                     ^_a
nmo<ncnhualrl,  fTnr)a(iitnst>6&4,_
t       | w                   ^a
it/usr/local/clang/include/absl/base/nullability.h_:c241y:c22l:e snote: )expanded from macro 'absl_nonnull')
In file included from ;  s2/s2shapeutil_edge_iterator.cc
241:       | 16#| :
                                  ^dIn file included from e
../src/s2/s2shapeutil_edge_iterator.hf:i/usr/local/clang/include/absl/base/nullability.h22n::
e241In file included from  :../src/s2/s2shape.ha22:b:s24 l:
note: _In file included from expanded from macro 'absl_nonnull'n../src/s2/base/logging.ho
:n21n  u:
l241In file included from l | /usr/local/clang/include/absl/log/check.h# :_d37eN:
ofIn file included from in/usr/local/clang/include/absl/log/internal/check_impl.hnn:eu21l :
al/usr/local/clang/include/absl/log/internal/check_op.hb
:s      453l| :                     ^_1n
:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _  N453o | nAnBuSlLl_
L      O| G                     ^_
In file included from Is2/s2shape_nesting_query.ccN:T17E:
RIn file included from N../src/s2/s2shape_nesting_query.hA:L26_:
DIn file included from E../src/s2/s2shape.hF:I24N:
EIn file included from _../src/s2/base/logging.hM:A21K:
EIn file included from _/usr/local/clang/include/absl/log/check.hC:H37E:
In file included from CIn file included from s2/s2shape_measures.ccK/usr/local/clang/include/absl/log/internal/check_impl.h:_:18O21:
P:
In file included from _/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2shape_measures.hS::T29627R::
I63In file included from N:../src/s2/s1angle.hG :_28warning: E:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]XIn file included from 
T../src/s2/s2point.hE:R27  N:
296(In file included from  | u ../src/s2/s2coder.hi :n 23t :
 6 In file included from 4 /usr/local/clang/include/absl/status/status.h_ :t 67) :
; In file included from 
 /usr/local/clang/include/absl/status/internal/status_internal.h        : |  29^ :
 
 In file included from  /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h :: 94 449 :
 : In file included from  31/usr/local/clang/include/absl/strings/internal/cordz_info.h : :  31note:  :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' /usr/local/clang/include/absl/synchronization/mutex.h 
: 1293 :   33 449:  |     warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
x tceo rn1293ns |  tvto esimidp glnRaeetgde i sccthoeanrrs*Mt u atcebhsxalTrr_*na coanebnrsu(llv_olni)o;dn 
n(      u*| la                                                              ^lb
 sMl/usr/local/clang/include/absl/base/nullability.ha_:kn241eo:Cn22hn:eu clnote: klexpanded from macro 'absl_nonnull'O 
pfS  nt)241r( | ic#nodgne(sf it n  ec\ h
aa      rb| *s                              ^ l
_anb/usr/local/clang/include/absl/base/nullability.hosn:nlu241l_l:n 22_oN:no nnnote: unexpanded from macro 'absl_nonnull'ul
ll l  m
241s      g | ,| #
                     ^d      
e| f                                ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeIn file included from ofs2/s2shape_nesting_query.ccni:nn17ue:
l In file included from la../src/s2/s2shape_nesting_query.h
b:      s26| l:
                     ^_In file included from 
n../src/s2/s2shape.ho:n24n:
uIn file included from l../src/s2/base/logging.hl: 21_:
NIn file included from o/usr/local/clang/include/absl/log/check.hIn file included from n:s2/s2shapeutil_edge_iterator.ccn37:u:
16lIn file included from :
l/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from 
:../src/s2/s2shapeutil_edge_iterator.h      21:| :
22                     ^/usr/local/clang/include/absl/log/internal/check_op.h:

:In file included from 298../src/s2/s2shape.h::2224:In file included from :
 s2/s2shape_measures.ccIn file included from :warning: ../src/s2/base/logging.h18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::

21In file included from :
../src/s2/s2shape_measures.hIn file included from :/usr/local/clang/include/absl/log/check.h  27:298:
37 | In file included from :
c../src/s2/s1angle.hIn file included from o:n/usr/local/clang/include/absl/log/internal/check_impl.h28s::
t21 In file included from u:
../src/s2/s2point.hn:s/usr/local/clang/include/absl/log/internal/check_op.hi27g::
n453eIn file included from :d../src/s2/s2coder.h 1:c:h23 a:
warning: rIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*/usr/local/clang/include/absl/status/status.h
 :a67b/usr/local/clang/include/absl/log/internal/check_op.h:
s:lIn file included from 450_/usr/local/clang/include/absl/status/internal/status_internal.h:n:25o29n:n:
u In file included from l/usr/local/clang/include/absl/strings/cord.hnote: l:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 94
o:
pIn file included from   e/usr/local/clang/include/absl/strings/internal/cordz_info.hr450a: | t31 o:
 r/usr/local/clang/include/absl/synchronization/mutex.h <: <1293 (: s62xt:,d  :warning: x:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],b
 acso inc1293s_ | tvo osctihrda eraR*me <gacibhssatlre,_ rnMToruntaneiutxlTsl>r)&a,

c      e      | r|                         ^                     ^(
v
o/usr/local/clang/include/absl/base/nullability.hi:d/usr/local/clang/include/absl/base/nullability.h241 ::(24122*::a22 b:note: s expanded from macro 'absl_nonnull'l
_note: n  expanded from macro 'absl_nonnull'o241n
 | n  #u241dl | el#f difennfe)i (nacebo sanlbs_stn loc_nhnnaournl*nl u la_blNs ol_n_Nnonuonlnnlun
lul      
l|       l                     ^ | 
                     ^m
sg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shape_nesting_query.cc241: | 17#:
dIn file included from e../src/s2/s2shape_nesting_query.hf:i26n:
eIn file included from In file included from  s2/s2shapeutil_edge_iterator.cc../src/s2/s2shape.ha::b1624s:
:
lIn file included from In file included from _../src/s2/s2shapeutil_edge_iterator.h../src/s2/base/logging.hn::o2221n:
:
nIn file included from In file included from u../src/s2/s2shape.h/usr/local/clang/include/absl/log/check.hl::l2437 :
:
_In file included from NIn file included from ../src/s2/base/logging.ho/usr/local/clang/include/absl/log/internal/check_impl.h:n:21n21:
u:
In file included from l/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/check.hl::
29937      ::
| 67In file included from                      ^:/usr/local/clang/include/absl/log/internal/check_impl.h
 :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:454:In file included from 1s2/s2shape_measures.cc  ::299 18 | :
 warning:  In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] ../src/s2/s2shape_measures.h 
 : 27 :
   In file included from 454 ../src/s2/s1angle.h |  :A 28B :
S In file included from L ../src/s2/s2point.h _: L 27O :
 G In file included from _ ../src/s2/s2coder.hI :N 23 T :
 EIn file included from  R /usr/local/clang/include/absl/status/status.hN :A 67 L :
 _In file included from D /usr/local/clang/include/absl/status/internal/status_internal.h E:F 29I :
 N In file included from  E/usr/local/clang/include/absl/strings/cord.h_ :M 94A :
 K In file included from Ec/usr/local/clang/include/absl/strings/internal/cordz_info.h_o:Cn31sH:
tE/usr/local/clang/include/absl/synchronization/mutex.h C:uKn1294_s:iOg62nP:_e dSwarning:  Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Rc
hIaNrG* _ 1294aE | Xb Ts lE _R nN o( fn ln uo la tl )) ;; 
 
             |  | ^                                                                   ^ 

  /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h :: 449241 :: 3122 ::    note: note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' expanded from macro 'absl_nonnull'
 
       449241  |  |   #  d ee fx it ne er  na  b t sel m _pn lo nanctuolenl s cto_ nNvosnotni udcl*hl a
ar      b*| s                     ^ la
_bnsoln_nnuolnln uolblj ,M
a      k| e                                                             ^C
he/usr/local/clang/include/absl/base/nullability.hc:k241O:p22S:t rnote: iexpanded from macro 'absl_nonnull'n
g(   241  |  #\d
e      f| i                              ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shape_measures.ccs2/s2shapeutil_edge_iterator.cc::1816:
:
In file included from In file included from ../src/s2/s2shape_measures.h../src/s2/s2shapeutil_edge_iterator.h::2722:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/s2shape.h::2824:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/base/logging.h::2721:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/check.h::2337:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/check_impl.h::6721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/internal/status_internal.h::45429::
1In file included from :/usr/local/clang/include/absl/strings/cord.h :94warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/log/internal/check_op.h31::
450:/usr/local/clang/include/absl/synchronization/mutex.h25::1309 :35note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
450 |     1309  |  v oxi,d  xR,e gciosntsetr CcohnadrV*a raTbrsalc_enro(nvnouildl )(
*      a| b                        ^s
l/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abs_l_nnoonnnnuullll  _fNno)n(n
u      l| l                                  ^

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shapeutil_edge_iterator.cc241: | 16#:
dIn file included from e../src/s2/s2shapeutil_edge_iterator.hf:i22n:
eIn file included from  ../src/s2/s2shape.ha:b24s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l455
:      1| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'In file included from 
s2/s2shape_measures.cc:18:
  In file included from 450../src/s2/s2shape_measures.h | : 27 :
 In file included from  ../src/s2/s1angle.h : 28x:
,In file included from  ../src/s2/s2point.hx:,27:
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/status/status.hc:h67a:
rIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
)/usr/local/clang/include/absl/synchronization/mutex.h
:      1310| :                        ^17
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:  1310 | note:  expanded from macro 'absl_nonnull' 
    c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_ Nmosngn,u lclo
n      s| t                     ^ 
void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shapeutil_edge_iterator.cc241: | 16#:
dIn file included from e../src/s2/s2shapeutil_edge_iterator.hf:i22n:
eIn file included from  ../src/s2/s2shape.ha:b24s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l456
:      1| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSLIn file included from _s2/s2shape_measures.ccL:O18G:
_In file included from I../src/s2/s2shape_measures.hN:T27E:
RIn file included from N../src/s2/s1angle.hA:L28_:
DIn file included from E../src/s2/s2point.hF:I27N:
EIn file included from _../src/s2/s2coder.hM:A23K:
EIn file included from _/usr/local/clang/include/absl/status/status.hC:H67E:
CIn file included from K/usr/local/clang/include/absl/status/internal/status_internal.h_:O29P:
_In file included from S/usr/local/clang/include/absl/strings/cord.hT:R94I:
NIn file included from G/usr/local/clang/include/absl/strings/internal/cordz_info.h_:E31X:
T/usr/local/clang/include/absl/synchronization/mutex.hE:R1310N:(47c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
       | 1310^ | 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449c:o31n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'c
har  *449  | a b selx_tneornnn utlelm pmlsagt,e  ccoonnsstt  vcohiadr**  aabbssll__nnoonnnnuullll  cMva)k)e;C
h      e| c                                              ^k
Op/usr/local/clang/include/absl/base/nullability.hS:t241r:i22n:g (note:  expanded from macro 'absl_nonnull' 
 \  
241       | | #                              ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  nIn file included from 241n | s2/s2shape_nesting_query.ccu#:ld17le :
f_In file included from iN../src/s2/s2shape_nesting_query.hno:en26 n:
auIn file included from bl../src/s2/s2shape.hsl:l
24_      :
n| In file included from o                     ^../src/s2/base/logging.hn
:n21u:
lIn file included from l/usr/local/clang/include/absl/log/check.h :_37N:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
l
/usr/local/clang/include/absl/log/internal/check_op.h      :| 323                     ^:
46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_edge_iterator.cc:16:
  In file included from 323../src/s2/s2shapeutil_edge_iterator.h | : 22 :
fIn file included from r../src/s2/s2shape.hi:e24n:
dIn file included from  ../src/s2/base/logging.hv:o21i:
dIn file included from  /usr/local/clang/include/absl/log/check.hA:b37s:
lIn file included from F/usr/local/clang/include/absl/log/internal/check_impl.ho:r21m:
a/usr/local/clang/include/absl/log/internal/check_op.ht:F456l:u1s:h (warning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ri/usr/local/clang/include/absl/log/internal/check_op.hn:g450i:f25y:S inote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'k
* a  b450s | l _ n o n n uxl,l  xs,i ncko,n
s      t|                                               ^c
har*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | )#
d      e| f                        ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shapeutil_build_polygon_boundaries.ccs2/s2shapeutil_edge_iterator.cc::1816:
:
In file included from In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h../src/s2/s2shapeutil_edge_iterator.h::2322:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s2shape.h::2424:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/base/logging.h::2121:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/check.h::3737:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_impl.h::2121:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h::45741::
1In file included from :/usr/local/clang/include/absl/log/internal/strip.h :warning: 26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47  :
457In file included from  | /usr/local/clang/include/absl/log/internal/structured_proto.hA:B27S:
LIn file included from _/usr/local/clang/include/absl/log/internal/proto.hL:O34G:
_IN/usr/local/clang/include/absl/types/span.hT:E212R:N22A:L _warning: Dtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]E
FINE_  M212A | K E _uCsHiEnCgK _pOoPi_nStTeRrI N=G _TE*X TaEbRsNl(_unnuslilganbeidl icthya_ru)n;k
n      o| w^n
;
/usr/local/clang/include/absl/log/internal/check_op.h      :| 449                     ^:
31: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
289:34:   449note:  | expanded from macro 'absl_nullability_unknown' 
 ex  t289e | r#nd etfeimnpel aatbes lc_onnusltl acbhialri*t ya_busnlk_nnoownnn u_lNlu lMla_kuenCshpeecckiOfpiSetdr
i      n| g                                 ^(
   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2shapeutil_build_polygon_boundaries.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2shapeutil_build_polygon_boundaries.h | :#23d:
eIn file included from f../src/s2/s2shape.hi:n24e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
NIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.h
:      26| :
                     ^In file included from 
/usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from In file included from s2/s2shapeutil_edge_iterator.cc/usr/local/clang/include/absl/log/internal/proto.h::1634:
:
In file included from /usr/local/clang/include/absl/types/span.h../src/s2/s2shapeutil_edge_iterator.h::21322::
34In file included from :../src/s2/s2shape.h :24warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
  In file included from 213/usr/local/clang/include/absl/log/check.h | : 37 :
uIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hi:n21g:
 /usr/local/clang/include/absl/log/internal/check_op.hc:o457n:s1t:_ pwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
n/usr/local/clang/include/absl/log/internal/check_op.ht:e450r: 25=:  cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
st   450T | *   a b s l _xn,u lxl,a bciolnistty _cuhnakrn*o wanb;s
l      _| n                                 ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l289l:)34
:       | note:                         ^expanded from macro 'absl_nullability_unknown'

/usr/local/clang/include/absl/base/nullability.h:  241289: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle_fniunlel aabbislli_tnyo_nunnuklnlo w_nN o_nNnuullll_
u      n| s                     ^p
ecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_IIn file included from Ns2/s2shape_nesting_query.ccT:E17R:
NIn file included from A../src/s2/s2shape_nesting_query.hL:_26D:
EIn file included from F../src/s2/s2shape.hI:N24E:
_In file included from M../src/s2/base/logging.hA:K21E:
_In file included from C/usr/local/clang/include/absl/log/check.hH:E37C:
KIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hO:P21_:
S/usr/local/clang/include/absl/log/internal/check_op.hT:R428I:N44G:_ Ewarning: Xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN(  c428o | nAsBtS Ls_tAdT::TstrRiInBgU&T)E;_
R      E| T^U
RNS/usr/local/clang/include/absl/log/internal/check_op.h_:N449O:N31N:U Lnote: Lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
cons  t449  | c h aerx*t earbns lt_enmopnlnautlel  cMoanksetC hcehcakrO*p Satbrsiln_gn(o
n      n| u                                           ^l
l Ma/usr/local/clang/include/absl/base/nullability.hk:e241C:h22e:c knote: Oexpanded from macro 'absl_nonnull'p
Str  i241n | g#(d e f i\n
e       | a                              ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _NIn file included from os2/s2shape_nesting_query.ccn:n17u:
lIn file included from l../src/s2/s2shape_nesting_query.h
:      26| :
                     ^In file included from 
../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_edge_iterator.cc:16:
In file included from   ../src/s2/s2shapeutil_edge_iterator.h429: | 22 :
 In file included from  ../src/s2/s2shape.h :T241:
 In file included from v../src/s2/base/logging.h1:,21 :
TIn file included from 2/usr/local/clang/include/absl/log/check.h :v372:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 458c:h1a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/log/internal/check_op.hl:_450n:o25n:n unote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
 ex  p450r | t e x t )   AxB,S Lx_,A TcToRnIsBtU TcEh_aNrO*I NaLbIsNlE_;n
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h):
241      :| 22                        ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from In file included from s2/s2shapeutil_edge_iterator.ccs2/s2shape_nesting_query.cc::1617:
:
In file included from In file included from ../src/s2/s2shapeutil_edge_iterator.h../src/s2/s2shape_nesting_query.h::2226:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s2shape.h::2424:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/base/logging.h::2121:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/check.h::3737:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_impl.h::2121:
:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h::459432::113::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    432459 |  | cAoBnSsLt_ LcOhGa_rI*N TaEbRsNlA_Ln_oDnEnFuIlNlE _MMaAkKeEC_hCeHcEkCOKp_SOtPr_iSnTgR(ITN1G _vE1X,T ETR2N (vc2o,n
s      t|              ^a
bs/usr/local/clang/include/absl/base/nullability.hl::241::s22t:r inote: nexpanded from macro 'absl_nonnull'g
_v  i241e | w#&d)e;f
i      n| e^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l449_:n31o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
l _  N449o | n n uelxlt
e      r| n                     ^ 
template In file included from cs2/s2shape_nesting_query.cco:n17s:
tIn file included from  ../src/s2/s2shape_nesting_query.hc:h26a:
rIn file included from *../src/s2/s2shape.h :a24b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from M/usr/local/clang/include/absl/log/internal/check_impl.ha:k21e:
C/usr/local/clang/include/absl/log/internal/check_op.hh:e433c:k56O:p Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ing  (433  |     \ 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l  c_oNnosntn uclhla
r      *|                       ^a
bsl_nonnull exprtIn file included from es2/s2shapeutil_edge_iterator.ccx:t16):
 In file included from {../src/s2/s2shapeutil_edge_iterator.h
:      22| :
                                                       ^In file included from 
../src/s2/s2shape.h:24/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/logging.h::2221::
 In file included from /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nonnull'37
:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h241: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f459i:n1e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:o450n:n25u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
Non  n450u | l l 
        |                       ^ 
x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnuIn file included from ls2/s2shapeutil_build_polygon_boundaries.ccl:
18      :
| In file included from                      ^../src/s2/s2shapeutil_build_polygon_boundaries.h
:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIIn file included from Fs2/s2shape_nesting_query.ccE:T17I:
MIn file included from E../src/s2/s2shape_nesting_query.h_:B26O:
UIn file included from N../src/s2/s2shape.hD:,24
:
      In file included from | ../src/s2/base/logging.h                              ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37257:
:In file included from 23/usr/local/clang/include/absl/log/internal/check_impl.h:: 21note: :
expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/check_op.h
:451:  1257: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin  e451  | aAbBsSlL__nLuOlGl_aIbNlTeE R_NNAuLl_lDaEbFlIeN
E      _| M                      ^A
KE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   exterIn file included from ns2/s2shapeutil_build_polygon_boundaries.cc In file included from :ts2/s2shapeutil_edge_iterator.cc18e:m:
16pIn file included from :
l../src/s2/s2shapeutil_build_polygon_boundaries.hIn file included from a:../src/s2/s2shapeutil_edge_iterator.ht23:e:
22 In file included from :
c../src/s2/s2shape.hIn file included from o:../src/s2/s2shape.hn24:s:
24tIn file included from :
 ../src/s2/base/logging.hIn file included from c:../src/s2/base/logging.hh21:a:
21rIn file included from :
*/usr/local/clang/include/absl/log/check.hIn file included from  :/usr/local/clang/include/absl/log/check.ha37:b:
37sIn file included from :
l/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from _:/usr/local/clang/include/absl/log/internal/check_impl.hn21:o:
21nIn file included from :
n/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.hu::l41460l:
: In file included from 1M/usr/local/clang/include/absl/log/internal/strip.h:a: k26warning: e:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]CIn file included from 
h/usr/local/clang/include/absl/log/internal/log_message.he:c47  k:
460OIn file included from  | pA/usr/local/clang/include/absl/log/internal/structured_proto.hSBt:SrL27i_n:
LgOIn file included from (G/usr/local/clang/include/absl/log/internal/proto.h _ :I N34\T
:
E      /usr/local/clang/include/absl/types/span.hR| N:                              ^A739
L:_/usr/local/clang/include/absl/base/nullability.hD21:E:241F :warning: I22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N:E
 _note: Mexpanded from macro 'absl_nonnull'  A
K739E   | _241SC | Hp#EdaCneK<f_TiO>nP eM_ SaaTkbRseIlSN_Gpna_onEn(XTnT*E uRalbNl(s lc_o_Nnonsntunl ulclhalab
rl      *e|                       ^ ab
besgli_nn In file included from oAs2/s2shape_nesting_query.ccBn:nS17Lu_:
AlIn file included from Tl../src/s2/s2shape_nesting_query.hT):R;26I
:
B      In file included from U| T../src/s2/s2shape.h^E:
_24L:
/usr/local/clang/include/absl/log/internal/check_op.hIIn file included from :F../src/s2/base/logging.h449E:T:21I31:
M:EIn file included from  _note: /usr/local/clang/include/absl/log/check.hBexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':O
37U:
N  In file included from D449,/usr/local/clang/include/absl/log/internal/check_impl.h
 | :       21 | :
                    ^e/usr/local/clang/include/absl/log/internal/check_op.h
x:t451/usr/local/clang/include/absl/base/nullability.he:r:1n257: : t23warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:m
p l/usr/local/clang/include/absl/log/internal/check_op.hnote: a:expanded from macro 'absl_nullable't450e
: 25c  :o257 n | note: #sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'dt
ef  i450n | e      x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_IN TERaNbAsLl__DnEuFlIlNaEb_lMeA K_EN_uClHlEaCbKl_eO
P      _| S                      ^T
RING_EXTERN(uint64_t);
In file included from       s2/s2shapeutil_build_polygon_boundaries.cc| :^18
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2shapeutil_build_polygon_boundaries.h::44923::
31In file included from :../src/s2/s2shape.h :note: 24expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from ../src/s2/base/logging.h:21  :
449In file included from  | /usr/local/clang/include/absl/log/check.h : 37e:
xIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.he:r21n:
 In file included from t/usr/local/clang/include/absl/log/internal/check_op.he:m41p:
lIn file included from a/usr/local/clang/include/absl/log/internal/strip.ht:e26 :
cIn file included from o/usr/local/clang/include/absl/log/internal/log_message.hn:s47t:
 In file included from c/usr/local/clang/include/absl/log/internal/structured_proto.hh:a27r:
*In file included from  /usr/local/clang/include/absl/log/internal/proto.ha:b34s:
l/usr/local/clang/include/absl/types/span.h_:n740:o21n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 Mak  e740C | h e c k O p S t r i n g (       \ 
T      *|                                ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   e 241n | cd#h)dae rf*ni oaenbxesc lea_bnpsotln_n nu{ol
nln       uMl| alk                    ^ e
_CNhoe/usr/local/clang/include/absl/base/nullability.hnc:nku257Olp:lS
t23      r:| i                      ^n
gnote: (expanded from macro 'absl_nullable' 
    \257
 |       #In file included from | ds2/s2shape_nesting_query.cc                              ^e:
f17i:
nIn file included from /usr/local/clang/include/absl/base/nullability.he../src/s2/s2shape_nesting_query.h: :a24126b::
s22lIn file included from :_../src/s2/s2shape.h nnote: u:expanded from macro 'absl_nonnull'l24
l:
aIn file included from   b../src/s2/base/logging.h241l:e | 21# :
d_In file included from eN/usr/local/clang/include/absl/log/check.hfu:il37nl:
eaIn file included from  b/usr/local/clang/include/absl/log/internal/check_impl.hal:be21s
:
l/usr/local/clang/include/absl/log/internal/check_op.h      _:n| 453                      ^o:n
1n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_/usr/local/clang/include/absl/log/internal/check_op.hN:o450n:n25u:l lnote: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      
|                      ^  
450 |       x,In file included from  s2/s2shapeutil_edge_iterator.ccx:,16 :
cIn file included from o../src/s2/s2shapeutil_edge_iterator.hn:s22t:
 In file included from c../src/s2/s2shape.hh:a24r:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21):

/usr/local/clang/include/absl/log/internal/check_op.h      :| 460                        ^:
66: /usr/local/clang/include/absl/base/nullability.h:warning: 241:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull'  
460 |   A241B | S#Ld_eLfOiGn_eI NaTbEsRlN_AnLo_nDnEuFlIlN E__NMoAnKnEu_lClH
E      C| K                     ^_
OP_STRING_EXTERN(const charIn file included from *s2/s2shape_nesting_query.cc :a17b:
sIn file included from l../src/s2/s2shape_nesting_query.h_:n26o:
nIn file included from n../src/s2/s2shape.hu:l24l:
)In file included from ;../src/s2/base/logging.h
:      21| :
                                                                 ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
: /usr/local/clang/include/absl/log/internal/check_op.h:note: 454expanded from macro 'absl_nonnull':
1:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def  i454n | eA BaSbLs_lL_OnGo_nInNuTlElR N_ANLo_nDnEuFlIlN
E      _| M                     ^A
KE_CHECKIn file included from _In file included from s2/s2shapeutil_build_polygon_boundaries.ccOs2/s2shapeutil_edge_iterator.cc:P:_1816S:
:
TIn file included from In file included from R../src/s2/s2shapeutil_build_polygon_boundaries.h../src/s2/s2shapeutil_edge_iterator.hI::N2322G:
:
_In file included from In file included from E../src/s2/s2shape.h../src/s2/s2shape.hX::T2424E:
:
RIn file included from In file included from N../src/s2/base/logging.h../src/s2/base/logging.h(::f2121l:
:
oIn file included from In file included from a/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/check.ht::)3737;:
:

In file included from In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_impl.h| ::^2121
:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/check_op.h:::46044941:::
6631In file included from ::/usr/local/clang/include/absl/log/internal/strip.h  :warning: note: 26type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':


In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h:  :24144947: | :
22 In file included from : /usr/local/clang/include/absl/log/internal/structured_proto.h e:note: xexpanded from macro 'absl_nonnull'27t
:
eIn file included from   r/usr/local/clang/include/absl/log/internal/proto.h241n: |  #34td:
ee/usr/local/clang/include/absl/types/span.hmfp:il794nae:t 8ea: b cswarning: olntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_sn
to ncn  hua794lr | l*    _a Nb osnTln*_u nlaolbns
nl      u_| nl                     ^lu
 lMlaakbIn file included from els2/s2shapeutil_edge_iterator.ccCe:h 16ep:
ctIn file included from kr../src/s2/s2shapeutil_edge_iterator.hO :pA22SB:
tSIn file included from Lr_../src/s2/s2shape.hiA:Tn24T:
RIn file included from I../src/s2/base/logging.hB:U21T:
EIn file included from _/usr/local/clang/include/absl/log/check.hL:I37F:
EIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hI:M21E:
_/usr/local/clang/include/absl/log/internal/check_op.hB:O460U:N1D:,  warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ze_t   460s | iAzBeS)L _nLoOeGx_cIeNpTtE R{N
A      L| _       ^D
EF/usr/local/clang/include/absl/base/nullability.hI:N257E:_23M:A Knote: Eexpanded from macro 'absl_nullable'_
CH  E257C | K#_dOePf_iSnTeR IaNbGs_lE_XnTuElRlNa(bcloen s_tN uclhlaarb*l ea
b      s| l                      ^_
nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnullIn file included from )s2/s2shapeutil_build_polygon_boundaries.cc
:      18| :
                        ^In file included from 
../src/s2/s2shapeutil_build_polygon_boundaries.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :../src/s2/s2shape.h22::24 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/base/logging.h
:21  :
241In file included from  | /usr/local/clang/include/absl/log/check.h#:d37e:
fIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_op.hs:l41_:
nIn file included from o/usr/local/clang/include/absl/log/internal/strip.hn:n26u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_message.h :_N47o:
nIn file included from n/usr/local/clang/include/absl/log/internal/structured_proto.hu:l27l:

In file included from       /usr/local/clang/include/absl/log/internal/proto.h| :                     ^34
:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeIn file included from Cs2/s2shapeutil_edge_iterator.cco:n16s:
tIn file included from S../src/s2/s2shapeutil_edge_iterator.hp:a22n:
(In file included from T../src/s2/s2shape.h*: 24a:
bIn file included from s../src/s2/base/logging.hl:_In file included from 21ns2/s2shape_measures.cc:
u:In file included from l18/usr/local/clang/include/absl/log/check.hl:
:aIn file included from b37../src/s2/s2shape_measures.hl:
:eIn file included from 27 /usr/local/clang/include/absl/log/internal/check_impl.h:
b:In file included from e21../src/s2/s1angle.hg:
:i/usr/local/clang/include/absl/log/internal/check_op.hn28
::
      461In file included from | :                               ^../src/s2/s2point.h1
::27 /usr/local/clang/include/absl/base/nullability.hwarning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:In file included from 
257../src/s2/s2coder.h::  2323461::
 |  In file included from note: A/usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullable'B:S
67L:
  _In file included from L257/usr/local/clang/include/absl/status/internal/status_internal.hO | :G#29_d:
Ie/usr/local/clang/include/absl/strings/cord.hNf:Ti109En:Re53N :Aa Lbwarning: _stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Dl
_EnFuIl  Nl109Ea | _bvMloAeiK dE __CNCouHplElyCCKaob_rlOdePT
_oS      ST| t                      ^Rr
IiNnGg_(EcXoTnEsRtN (C
oIn file included from       rs2/s2shapeutil_build_polygon_boundaries.cc| d^&
 sr/usr/local/clang/include/absl/log/internal/check_op.hc:,449 ::s31t18:d:
 :In file included from note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'../src/s2/s2shapeutil_build_polygon_boundaries.hs
:t23  r:
449iIn file included from  | n../src/s2/s2shape.h g: *e 24xa:
tbeIn file included from srl../src/s2/base/logging.hn_ :nt21oe:
nmIn file included from np/usr/local/clang/include/absl/log/check.hull:alt37 ed:
 scIn file included from to)/usr/local/clang/include/absl/log/internal/check_impl.hn;s:
t21       :
| c                                                    ^In file included from h
a/usr/local/clang/include/absl/log/internal/check_op.hr:/usr/local/clang/include/absl/base/nullability.h*41: :
241aIn file included from :b/usr/local/clang/include/absl/log/internal/strip.h22s::l26 _:
note: nexpanded from macro 'absl_nonnull'In file included from o
n/usr/local/clang/include/absl/log/internal/log_message.hn  :u24147l | l:
# dIn file included from Mea/usr/local/clang/include/absl/log/internal/structured_proto.hfk:ien27Ceh:
 eIn file included from acb/usr/local/clang/include/absl/log/internal/proto.hksO:lp_34Snt:
onnullr _Noinnngu(l l 
       \| 
                     ^      
|                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2shape_measures.ccl:l18
:
      In file included from | ../src/s2/s2shape_measures.h                     ^:
27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2shapeutil_edge_iterator.cc/usr/local/clang/include/absl/status/status.h::1667:
:
In file included from In file included from ../src/s2/s2shapeutil_edge_iterator.h/usr/local/clang/include/absl/status/internal/status_internal.h::2229:
:
In file included from ../src/s2/s2shape.h/usr/local/clang/include/absl/strings/cord.h::24110:
:In file included from 55../src/s2/base/logging.h:: 21:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21110:
 | /usr/local/clang/include/absl/log/internal/check_op.hv:o462i:d24 :A pwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ndC  o462r | d T o S tcroinnsgt( csoingsnte dC ocrhda&r *s racb,s ls_tndo:n:nsutlrli)n;g
*       | a                       ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
ds  t241) | ;#
d      e| f                                                      ^i
ne /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull In file included from _s2/s2shapeutil_edge_iterator.ccN:o16n:
nIn file included from u../src/s2/s2shapeutil_edge_iterator.hl:l22
:
      In file included from | ../src/s2/s2shape.h                     ^:
24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/types/span.hIn file included from :s2/s2shapeutil_edge_iterator.cc801g::1632:
:(In file included from   ../src/s2/s2shapeutil_edge_iterator.h : warning: 22\type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:


In file included from       ../src/s2/s2shape.h| :                              ^24
:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37  :
801In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h :: 21 241:
 /usr/local/clang/include/absl/log/internal/check_op.h:: 46322 :: 1  :note:  expanded from macro 'absl_nonnull'  warning: 
 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    241    |  463#  | d Ae Bf S iL n _e L  OaG b_ sI lNT_Tn*E oRnaNbnsAuLll__lnD uE_lFlNIaoNnbEnl_ueMl AleK
nE      d_| )                     ^ C
nHoEeCxKc_eOpPt_ S{T
R      I| N                               ^In file included from G
s2/s2shape_nesting_query.cc_:E17X:
T/usr/local/clang/include/absl/base/nullability.hIn file included from E:../src/s2/s2shape_nesting_query.hR257:N:26(23:

:In file included from        ../src/s2/s2shape.h| note: :^expanded from macro 'absl_nullable'24

:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/base/logging.h  449:257:21 | 31:
#:In file included from d /usr/local/clang/include/absl/log/check.henote: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'f37
i:
nIn file included from   e/usr/local/clang/include/absl/log/internal/check_impl.h449 : | a21 b:
 s/usr/local/clang/include/absl/log/internal/check_op.hel:xIn file included from _454ts2/s2shape_measures.ccn:e:u1r18l:n:
l  In file included from awarning: t../src/s2/s2shape_measures.hbtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e:l
m27ep/usr/local/clang/include/absl/log/internal/check_op.hl:
a :In file included from t_450../src/s2/s1angle.heN:: u2528cl::
ol In file included from nanote: ../src/s2/s2point.hsbexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':tl
27 e:
  c
In file included from 450h      ../src/s2/s2coder.h | a | :r                       ^23*  
:
 aIn file included from b /usr/local/clang/include/absl/status/status.hs :lx67_,:
n In file included from ox/usr/local/clang/include/absl/status/internal/status_internal.hn,:n 29uc:
lo/usr/local/clang/include/absl/strings/cord.hln: s425Mt:a 62kc:eh Cawarning: hrtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e*
c kaObp  sS425lt | _r ni onfngrn(iu el nl d)\ 

v            o| | i                        ^                              ^d

 C/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.ho::p241241y::C2222o::r  dnote: note: Texpanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'o

S  t  241r241 | i | #n#dgd(eecffioinnnese t a abCbsoslrl_d_&nn oonsnnrnucul,ll l s _t_NdNo:o:nnsnntuulrllil
n
      g      | *|                      ^                      ^
a
bsl_nIn file included from os2/s2shapeutil_edge_iterator.ccn:n16u:
lIn file included from l../src/s2/s2shapeutil_edge_iterator.h :d22s:
tIn file included from )../src/s2/s2shape.h;:
24      :
| In file included from                                                              ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.hIn file included from 
:s2/s2shape_nesting_query.cc464::  1726241: |  :
#In file included from warning: d../src/s2/s2shape_nesting_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e:
f26i:
  nIn file included from 464e../src/s2/s2shape.h |  : a24 b:
 sIn file included from  lc../src/s2/base/logging.h_o:nn21os:
ntIn file included from n /usr/local/clang/include/absl/log/check.huu:ln37ls:
 iIn file included from _g/usr/local/clang/include/absl/log/internal/check_impl.hNn:oe21nd:
n /usr/local/clang/include/absl/log/internal/check_op.huc:lh455la:
r1      *:|                        ^a
warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o455n | nAuBlSlL)_;L
O      G| _                         ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:AIn file included from 22Ls2/s2shape_measures.cc:_:D 18E:
note: FIn file included from expanded from macro 'absl_nonnull'I../src/s2/s2shape_measures.hN
E:_  27M241A:
 | KIn file included from E#../src/s2/s1angle.hd_:Ce28fH:
iEIn file included from CnK../src/s2/s2point.he_: O27aP:
_bSIn file included from sT../src/s2/s2coder.hlR:_I23nN:
oGIn file included from _nE/usr/local/clang/include/absl/status/status.hnX:uT67lE:
RlNIn file included from  (/usr/local/clang/include/absl/status/internal/status_internal.h_d:oNu29ob:
ln/usr/local/clang/include/absl/strings/cord.hen):u;437l
:l      47
| :      ^ | 
warning:                      ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:449:31:   437 | note: In file included from  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's2/s2shapeutil_edge_iterator.cc 
: 16 :
   In file included from 449 ../src/s2/s2shapeutil_edge_iterator.h |  :   22 e:
 xIn file included from t e../src/s2/s2shape.h r:n  24 t:
 eIn file included from  m../src/s2/base/logging.hp l: a21t :
e  In file included from c o/usr/local/clang/include/absl/log/check.h n:s t37  :
 cIn file included from  h/usr/local/clang/include/absl/log/internal/check_impl.h a: r21 *:
  /usr/local/clang/include/absl/log/internal/check_op.ha b:s l464 _:ns26ot:nd n:warning: u:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lsl
t r/usr/local/clang/include/absl/base/nullability.hMi:ank241egC:*h22e c:kaObpsSlt_rnionngn( u lnote:  lexpanded from macro 'absl_nonnull'  \
d
s        t| 241)                              ^ | ;
#
d      /usr/local/clang/include/absl/base/nullability.he| :f                                              ^241i
:n22e:/usr/local/clang/include/absl/base/nullability.h  :a241note: b:sexpanded from macro 'absl_nonnull'22l
:_   n241note: o | expanded from macro 'absl_nonnull'n#
ndu  elf241li | n #e_d Naeobfnsinnlu_enl loa
nbn      usl| ll                     ^_ 
_nNoonnnnuuIn file included from lls2/s2shapeutil_edge_iterator.ccll:
 16      _:
| N                     ^In file included from o
../src/s2/s2shapeutil_edge_iterator.hn:n22u:
lIn file included from l../src/s2/s2shape.hIn file included from 
:s2/s2shape_nesting_query.cc      24:| :
17                     ^In file included from :

../src/s2/base/logging.hIn file included from :../src/s2/s2shape_nesting_query.h21::
26In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2shape.h37::
24In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/base/logging.h21::
21/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 463/usr/local/clang/include/absl/log/check.h::137::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
/usr/local/clang/include/absl/log/internal/check_op.h:  455463: | 1A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
L/usr/local/clang/include/absl/log/internal/check_op.hO:G450_:I25N:T Enote: Rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'N
AL  _450D | E F I N E _ MxIn file included from A,s2/s2shape_measures.cc Kx:E,_18 C:
HcIn file included from oE../src/s2/s2shape_measures.hnC:sK27_t:
 OIn file included from Pc../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = c_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #har* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cconst char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() coIn file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {   nst;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from :
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from   s2/s2shapeutil_edge_iterator.cc489: | 16 :
 In file included from  ../src/s2/s2shapeutil_edge_iterator.h : 22 :
cIn file included from o../src/s2/s2shape.hn:s24t:
 In file included from T../src/s2/base/logging.h1:&21 :
vIn file included from 1/usr/local/clang/include/absl/log/check.h,: 37c:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:t21 :
T2/usr/local/clang/include/absl/log/internal/check_op.h&: 505v:21,:  cwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
st c  h505a | rA*B SaLb_sLlO_Gn_oInNnTuElRlN AeLx_pCrHtEeCxKt_)O P{_ I M P L (\C
h      e| c                                              ^k
_LT,/usr/local/clang/include/absl/base/nullability.h :<241):
22      :|  ^
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/log/internal/check_op.h:488  :24132 | :# dnote: eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'f
ine   488a | b s li_nnloinnneu lclo n_sNtoenxnpurl lc
o      n| s                     ^t
 char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505In file included from :s2/s2shape_nesting_query.cc1::17 :
In file included from warning: ../src/s2/s2shape_nesting_query.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
26:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2shape.h::48924::
47In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :48921 | :
 /usr/local/clang/include/absl/log/internal/check_op.h : 503 : 1 :c owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
t /usr/local/clang/include/absl/log/internal/check_op.hT:1497&: 32v:1 ,note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'c
onst   497T | 2 &  ivn2l,i nceo ncsotn sctheaxrp*r  acbosnls_tn ocnhnaurl*l  aebxsplr_tneuxltl)a b{l e   n a m\e
#      #| I                                              ^m
pl/usr/local/clang/include/absl/base/nullability.h(: 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                               ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n257u:l23l:  _note: Nexpanded from macro 'absl_nullable'o
nn  u257l | l#
d      e| f                     ^i
ne absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* aIn file included from bs2/s2shapeutil_edge_iterator.ccs:l16_:
nIn file included from o../src/s2/s2shapeutil_edge_iterator.hn:n22u:
lIn file included from l../src/s2/s2shape.h :e24x:
pIn file included from r../src/s2/base/logging.ht:e21x:
tIn file included from )/usr/local/clang/include/absl/log/check.h :{37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 505 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 \/usr/local/clang/include/absl/log/internal/check_op.h
:      497| :                                  ^32
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'241
:22: note:   expanded from macro 'absl_nonnull'497
 |     241i | n#ldienfei nceo nasbtselx_pnro ncnounlslt  _cNhoanrn*u lalb
s      l| _                     ^n
ullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.hIn file included from :s2/s2shapeutil_conversion.cc26::
18In file included from :
../src/s2/s2shape.hIn file included from :../src/s2/s2shapeutil_conversion.h24::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2point.h21::
25In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/util/coding/coder.h37::
36In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/base/casts.h21::
34/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 504/usr/local/clang/include/absl/log/log.h::1209::
 In file included from /usr/local/clang/include/absl/log/internal/log_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]20
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h::48963::
47: /usr/local/clang/include/absl/log/internal/vlog_config.h:note: 49expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
37: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]489
 |        49  |  icnotn sRte gTi1s&t evr1A,n dcIonnistti aTl2i&z ev(2V,L ocgoSnistte *c haabrs*l _anbosnln_unloln nvu)l;l
       e| x                                    ^p
rtex/usr/local/clang/include/absl/base/nullability.ht:)241 :{22 :   note:  expanded from macro 'absl_nonnull' 
\
        241|  |                                               ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull In file included from fs2/s2shape_nesting_query.cc):
17      :
| In file included from                                           ^../src/s2/s2shape_nesting_query.h
:26:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2shape.h241::2422:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 504a:b1s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nn/usr/local/clang/include/absl/log/internal/check_op.hu:l497l: 32_:N onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
ull
        497|  |                      ^ 
 inline constexpr const char* absl_nullable nameIn file included from #s2/s2shapeutil_edge_iterator.cc#:I16m:
pIn file included from l../src/s2/s2shapeutil_edge_iterator.h(: 22 :
 In file included from  ../src/s2/s2shape.h : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h\:
21      In file included from :
| s2/s2shapeutil_conversion.cc/usr/local/clang/include/absl/log/internal/check_op.h                               ^::
18507:
:/usr/local/clang/include/absl/base/nullability.hIn file included from 1:../src/s2/s2shapeutil_conversion.h:257: :2723warning: :
:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from  
../src/s2/s2point.hnote: :expanded from macro 'absl_nullable'25  
:
507In file included from    | ../src/s2/util/coding/coder.h257A: | B36S#:
LdIn file included from _e../src/s2/base/casts.hLf:Oi34Gn:
e_ In file included from aI/usr/local/clang/include/absl/log/log.hNb:Ts209El:
R_In file included from Nn/usr/local/clang/include/absl/log/internal/log_impl.hAu:lLl20a_b:
lCIn file included from He/usr/local/clang/include/absl/log/absl_vlog_is_on.hE :_CN63uK:
_l/usr/local/clang/include/absl/log/internal/vlog_config.hOl:aPb_96lI:eM60
P:      L | (warning:                       ^Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h

eck_   G96T | ,   >f)r
i      In file included from e| s2/s2shape_nesting_query.ccn^d:
 17i:
/usr/local/clang/include/absl/log/internal/check_op.hnIn file included from :t../src/s2/s2shape_nesting_query.h488 ::l26o32:
g:In file included from _ ../src/s2/s2shape.hi:note: n24expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL't:
e
In file included from r../src/s2/base/logging.hn:  a21488l:
 | :In file included from  :/usr/local/clang/include/absl/log/check.h R:iengliisntee rcAonndsItneixtpira lcioznes(tV LcohgaSri*t ea*b salb_snlu_lnloanbnluel ln avm)e;#
#      I| m                                                           ^p
l(/usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                               ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: _expanded from macro 'absl_nullable'N
on  n257u | l#ld
e      f| i                     ^n
e absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2shapeutil_conversion.cc257: | 18#:
dIn file included from e../src/s2/s2shapeutil_conversion.hf:i27n:
eIn file included from  ../src/s2/s2point.ha:b25s:
lIn file included from _../src/s2/util/coding/coder.hn:u36l:
lIn file included from a../src/s2/base/casts.hb:l34e:
 In file included from _/usr/local/clang/include/absl/log/log.hN:u209l:
lIn file included from a/usr/local/clang/include/absl/log/internal/log_impl.hb:l20e:

In file included from       /usr/local/clang/include/absl/log/absl_vlog_is_on.h| :                      ^63
:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_edge_iterator.cc
:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h  :11922 | :
 In file included from  ../src/s2/s2shape.hc:o24n:
sIn file included from t../src/s2/base/logging.h :c21h:
aIn file included from r/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n507u:l1l:  cwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
s/usr/local/clang/include/absl/log/internal/check_op.ht: 498f:i35l:e _note: ;expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

      |               ^
  498 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  inote: nexpanded from macro 'absl_nonnull't
 v  1241, |  #idnetf ivn2e,  acbosnls_tn ocnhnaurl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2shape_measures.ccn:n18u:
lIn file included from l../src/s2/s2shape_measures.h
:      27| :
                     ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2shapeutil_edge_iterator.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1629:
:
In file included from ../src/s2/s2shapeutil_edge_iterator.h/usr/local/clang/include/absl/strings/cord.h::221140:
:In file included from 49../src/s2/s2shape.h:: 24:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h: 371140:
 | In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 517 : 13 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      517  |  c o n s t   c h a r *  CaobrsdlR_enpuElxltaebrlnea lC*h eacbksslt_rncoansneuclmlp trreupe)I;m
p      l| (                                                ^

      |             ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241257::2223::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullable'

    241257 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbll e_ N_oNnunlullalb
l      e| 
                     ^      
|                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2shape_measures.cc21::
18/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 518../src/s2/s2shape_measures.h::1727::
 In file included from ../src/s2/s1angle.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]28
:
In file included from ../src/s2/s2point.h:27  :
518In file included from  | ../src/s2/s2coder.h : 23 :
 In file included from c/usr/local/clang/include/absl/status/status.ho:n67s:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:h29a:
r/usr/local/clang/include/absl/strings/cord.h*: 1146a:b10s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab l1146e |  Cso1r,d Rceopn*s ta bcshla_rn*o nanbuslll_ nNuelwlEaxbtleer nsa2l,R
e      p| (                ^a
bs/usr/local/clang/include/absl/base/nullability.hl::257::s23t:r inote: nexpanded from macro 'absl_nullable'g
_v  i257e | w# ddeaftian,e
       a| b         ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
_N  u241l | l#adbelfei
n      e|                        ^a
bsl_nonIn file included from ns2/s2shapeutil_edge_iterator.ccu:l16l:
 In file included from _../src/s2/s2shapeutil_edge_iterator.hN:o22n:
nIn file included from u../src/s2/s2shape.hl:l24
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^In file included from 
s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:In file included from 27s2/s2shapeutil_edge_iterator.cc:
:In file included from 16../src/s2/s1angle.h:
:In file included from 28../src/s2/s2shapeutil_edge_iterator.h:
:In file included from 22../src/s2/s2point.h:
:In file included from 27../src/s2/s2shape.h:
In file included from ../src/s2/s2coder.h::2423:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.h::2167:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/internal/status_internal.h::3729:
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/strings/cord.h::211159:
:/usr/local/clang/include/absl/log/internal/check_op.h17::519 :17warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 In file included from 1159  s2/s2shapeutil_conversion.cc | 519:i | 18n :
l In file included from  i../src/s2/s2shapeutil_conversion.h nc:eo27n :
CsIn file included from to../src/s2/s2point.h r:cd25Rhea:
rpIn file included from ** ../src/s2/util/coding/coder.h a:abb36ss:
ll_In file included from _n../src/s2/base/casts.hon:on34nn:
unlIn file included from lu/usr/local/clang/include/absl/log/log.h l:le 209Nx:
perIn file included from wt/usr/local/clang/include/absl/log/internal/log_impl.hEe:xx20tt:
)eIn file included from r;/usr/local/clang/include/absl/log/absl_vlog_is_on.hn
:a      63l| :
R                ^e/usr/local/clang/include/absl/log/internal/vlog_config.h
p:(133/usr/local/clang/include/absl/base/nullability.h
::      37241| ::                ^ 22
:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.hnote: 
:expanded from macro 'absl_nonnull'241
:22  :  133 241 |  | note: i#expanded from macro 'absl_nonnull'nd
te   fR241ien | ge#i daesbftsienlre_A nnaodbnInsnluil_tlni o_anlNnoiunznlelu( V_lLNloo
gn      Sn| iu                     ^tl
el*
       a| b                     ^s
l_nonIn file included from ns2/s2shapeutil_edge_iterator.ccu:l16l:
 In file included from v../src/s2/s2shapeutil_edge_iterator.h):;22:

In file included from       ../src/s2/s2shape.h| :                                    ^24
:
In file included from ../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/check.h::2237::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hnote: :21expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/log/internal/check_op.h:520  :24113 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine   520a | bcsoln_snto ncnhualrl*  _aNbosnln_unlull
l      a| b                     ^l
e CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.ccIn file included from :s2/s2shapeutil_conversion.cc16::
18In file included from :
../src/s2/s2shapeutil_edge_iterator.hIn file included from :../src/s2/s2shapeutil_conversion.h22::
27In file included from :
../src/s2/s2shape.hIn file included from :../src/s2/s2point.h24::
25In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/util/coding/coder.h21::
36In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/base/casts.h37::
34In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/log.h21::
209/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 521/usr/local/clang/include/absl/log/internal/log_impl.h::1720::
 In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]63
:
/usr/local/clang/include/absl/log/internal/vlog_config.h:  157521: | 11 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
ons  t157  | cVhLaorg*S iatbes*l _anbuslll_anbullel asb1l,e  cSoentsVtM ocdhualre*L iasbtsHIn file included from les2/s2shape_measures.cca_:dn18uF:
loIn file included from lr../src/s2/s2shape_measures.haT:be27ls:
etIn file included from  O../src/s2/s1angle.hsn:2l28,y:

(In file included from       
../src/s2/s2point.h|       :                ^| 27
          ^:

In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::/usr/local/clang/include/absl/base/nullability.h25723:::
25723In file included from ::/usr/local/clang/include/absl/status/status.h23 ::67note:  :
expanded from macro 'absl_nullable'In file included from note: 
/usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nullable':
  29257  :
 | 257/usr/local/clang/include/absl/strings/cord.h# | :d#1183ed:fe47if:ni enwarning:  etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a 
basbls_l n_1183un | lu ll alb al be l  e _ N  u_ lN lu al bl lae b 
l       e |  
                       ^       
|                        ^ 
   In file included from  s2/s2shapeutil_edge_iterator.cc : In file included from 16 s2/s2shapeutil_conversion.cc:
 :In file included from  18../src/s2/s2shapeutil_edge_iterator.h :
: In file included from 22 ../src/s2/s2shapeutil_conversion.h:
 :In file included from  27../src/s2/s2shape.hC:
o:rIn file included from 24d../src/s2/s2point.h:
R:In file included from e25../src/s2/base/logging.hp:
:*In file included from  21a../src/s2/util/coding/coder.h:
b:In file included from s36/usr/local/clang/include/absl/log/check.hl:
:_In file included from 37n../src/s2/base/casts.h:
u:In file included from l34/usr/local/clang/include/absl/log/internal/check_impl.hl:
:aIn file included from 21b/usr/local/clang/include/absl/log/log.h:
l:/usr/local/clang/include/absl/log/internal/check_op.he209: :
r521eIn file included from :p/usr/local/clang/include/absl/log/internal/log_impl.h47)::
20       :
| warning: In file included from                                               ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/absl_vlog_is_on.h

:63:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/vlog_config.h  ::521257158 | :: 23 15: :   cnote: warning: oexpanded from macro 'absl_nullable'ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
s
t   257  c | h158#ad | re f*i  na eb s VlaLbo_sngluS_lilntuela*bl laaebbl ssel1 __,nN uuclolllnaasbbtll eceh
 a      vr| )*                      ^; 

a      b| s              ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l257l:a23b:l enote:  expanded from macro 'absl_nullable's
2,  
257       | | #                                              ^d
efi/usr/local/clang/include/absl/base/nullability.hn:e257 :a23b:s lnote: _expanded from macro 'absl_nullable'n
ul  l257a | b#ldee f_iNnuel albasbll_en
u      l| l                      ^a
ble _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_interIn file included from ns2/s2shape_measures.cca:l18::
:In file included from R../src/s2/s2shape_measures.he:g27i:
sIn file included from t../src/s2/s1angle.he:r28A:
nIn file included from d../src/s2/s2point.hI:n27i:
tIn file included from i../src/s2/s2coder.ha:l23i:
zIn file included from e/usr/local/clang/include/absl/status/status.h(:V67L:
og/usr/local/clang/include/absl/status/internal/status_internal.hS:i119t:e14*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n119n | u l lS tva)t;u
s      R| e                                                           ^p
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | C#ldoenfei(n
e       | a             ^b
sl_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullablIn file included from es2/s2shape_measures.cc
:      18| :
                      ^In file included from 
../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix)In file included from ;s2/s2shapeutil_conversion.cc
:      18| :
                        ^In file included from 
../src/s2/s2shapeutil_conversion.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2225::
 In file included from ../src/s2/util/coding/coder.hnote: :expanded from macro 'absl_nonnull'36
:
In file included from ../src/s2/base/casts.h  :24134 | :
#In file included from d/usr/local/clang/include/absl/log/log.he:f209i:
nIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.h :a22b:
sIn file included from l/usr/local/clang/include/absl/log/internal/log_message.h_:n47o:
nIn file included from n/usr/local/clang/include/absl/log/internal/structured_proto.hu:l27l:
 In file included from _/usr/local/clang/include/absl/log/internal/proto.hN:o34n:
n/usr/local/clang/include/absl/types/span.hu:l794l:
8      :|                       ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |  In file included from  s2/s2shape_measures.cc : 18T:
*In file included from  ../src/s2/s2shape_measures.ha:b27s:
lIn file included from _../src/s2/s1angle.hn:u28l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from p../src/s2/s2coder.ht:r23 :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
A/usr/local/clang/include/absl/status/internal/status_internal.hT:T150R:I58B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
LIFE  T150I | M E _ B OcUoNnDs,t  saibzsel_:t: Sstiazteu)s *n oaebxscle_pnto n{n
u      l| l       ^ 
sta/usr/local/clang/include/absl/base/nullability.ht:u257s:,23 :c onote: nexpanded from macro 'absl_nullable's
t   c257h | a#rd*e faibnsel _anbosnln_unlull lparbelfei x_)N;u
l      l| a                                                         ^b
le/usr/local/clang/include/absl/base/nullability.h
:      241| :                      ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:27:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 319s2/s2shape_measures.cc | : 18 :
 In file included from  ../src/s2/s2shape_measures.hc:o27n:
sIn file included from t../src/s2/s1angle.h :w28c:
hIn file included from a../src/s2/s2point.hr:_27t:
*In file included from  ../src/s2/s2coder.ha:b23s:
l/usr/local/clang/include/absl/status/status.h_:n1063u:l13l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 co n1063s | tc&o nvs)t; 
c      h| a                   ^r
* ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   S257t | a#tduesfMienses aagbesAls_CnSutlrl(a
b      l| e            ^ 
_Nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22l:e 
note:       expanded from macro 'absl_nonnull'| 
                      ^
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* abIn file included from ss2/s2shape_nesting_query.ccl:_17n:
oIn file included from n../src/s2/s2shape_nesting_query.hn:u26l:
lIn file included from  ../src/s2/s2shape.hf:i24l:
eIn file included from ,../src/s2/base/logging.h
:      22| :
                                   ^In file included from 
/usr/local/clang/include/absl/log/log.h:209/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h::2220::
 In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.hnote: :expanded from macro 'absl_nonnull'63
:
  /usr/local/clang/include/absl/log/internal/vlog_config.h241: | 49#:d37e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 absl   _49n | oinnntu lRle g_iNsotnenruAlnld
I      n| i                     ^t
ialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2shapeutil_get_reference_point.ccu:l18l:
 In file included from _../src/s2/s2shapeutil_get_reference_point.hN:o21n:
nIn file included from u../src/s2/s2shape.hl:l24
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuieIn file included from ts2/s2shape_nesting_query.ccl:y17D:
eIn file included from b../src/s2/s2shape_nesting_query.hu:g26F:
aIn file included from t../src/s2/s2shape.ha:l24(:
cIn file included from o../src/s2/base/logging.hn:s22t:
 In file included from c/usr/local/clang/include/absl/log/log.hh:a209r:
*In file included from  /usr/local/clang/include/absl/log/internal/log_impl.ha:b20s:
lIn file included from _/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:o63n:
n/usr/local/clang/include/absl/log/internal/vlog_config.hu:l63l: 43f:i lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                                           ^   
63 | /usr/local/clang/include/absl/base/nullability.h : 241e:x22p:l inote: cexpanded from macro 'absl_nonnull'i
t   c241o | n#sdteefxipnre  VaLbosglS_intoen(ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* abIn file included from ss2/s2shape_nesting_query.ccl:_17n:
oIn file included from n../src/s2/s2shape_nesting_query.hn:u26l:
lIn file included from  ../src/s2/s2shape.hf:i24l:
eIn file included from ,../src/s2/base/logging.h
:      22| :
                                     ^In file included from 
/usr/local/clang/include/absl/log/log.h:209/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h::2220::
 In file included from note: /usr/local/clang/include/absl/log/absl_vlog_is_on.hexpanded from macro 'absl_nonnull':
63:
  /usr/local/clang/include/absl/log/internal/vlog_config.h241: | 96#:d60e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs   l96_ | n o nfnruileln d_ Nionntn ullolg
_      i| n                     ^t
ernal::RegisterAndInitializIn file included from es2/s2shapeutil_get_reference_point.cc(:V18L:
oIn file included from g../src/s2/s2shapeutil_get_reference_point.hS:i21t:
eIn file included from *../src/s2/s2shape.h :a24b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from v/usr/local/clang/include/absl/log/internal/check_impl.h):;21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                                                           ^:
41:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/strip.h::24126::
22/usr/local/clang/include/absl/log/internal/log_message.h:: 456note: :expanded from macro 'absl_nonnull'38
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#de  f456i | n e  LaobgsMle_snsoangneuQluli e_tNloynFnautlall
(      c| o                     ^n
st char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2shapeutil_edge_iterator.ccn:u16l:
lIn file included from 
../src/s2/s2shapeutil_edge_iterator.h      :| 22                     ^:

In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45:In file included from  s2/s2shapeutil_get_reference_point.ccwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
   In file included from 39../src/s2/s2shape.h | :i24n:
lIn file included from i../src/s2/base/logging.hn:e21 :
uIn file included from i/usr/local/clang/include/absl/log/check.hn:t371:
6In file included from _/usr/local/clang/include/absl/log/internal/check_impl.ht: 21U:
n/usr/local/clang/include/absl/log/internal/check_op.ha:l189i:g28n:e dwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
ad16  (189c | oinnslti nveo icdo*n satb salb_snlo:n:nSutlalt ups)*  {a
b      s| l                                            ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :A snote: Sexpanded from macro 'absl_nonnull't
at  u241s | (#cdoenfsitn ea basbls:l:_Sntoantnuusl&l  s_)N o{n
n      u| l                           ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.ccIn file included from :s2/s2shapeutil_edge_iterator.cc18::
16In file included from :
../src/s2/s2shapeutil_get_reference_point.hIn file included from :../src/s2/s2shapeutil_edge_iterator.h21::
22In file included from :
../src/s2/s2shape.hIn file included from :../src/s2/s2shape.h24::
25In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 193/usr/local/clang/include/absl/strings/cord.h::2177::
 In file included from warning: /usr/local/clang/include/absl/base/internal/endian.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:  45193: | 45c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 abs   l45: | :iSntlaitnues *u ianbts3l2__nto nUnnuallli gAnseSdtLaotauds3(2c(ocnosnts ta bvsoli:d:*S taabtsuls_Onro<nTn>u&l ls )p ){ 
{      
|                           ^| 
                                            ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: In file included from warning: s2/s2shapeutil_edge_iterator.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:  22202:
 | In file included from  ../src/s2/s2shape.h :e25x:
pIn file included from l../src/s2/s2coder.hi:c23i:
tIn file included from  /usr/local/clang/include/absl/status/status.hC:h67e:
cIn file included from k/usr/local/clang/include/absl/status/internal/status_internal.hO:p29M:
eIn file included from s/usr/local/clang/include/absl/strings/cord.hs:a77g:
eIn file included from B/usr/local/clang/include/absl/base/internal/endian.hu:i26l:
d/usr/local/clang/include/absl/base/internal/unaligned_access.he:r51(:c45o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
char   *51  | aibnslli_nneo nuniunltl6 4e_xtp rUtneaxlti)g;n
e      d| L                                             ^o
ad/usr/local/clang/include/absl/base/nullability.h6:4241(:c22o:n snote: texpanded from macro 'absl_nonnull' 
vo  i241d | *# daebfsiln_en oanbnsull_ln opn)n u{l
l       | _                                            ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewSIn file included from ts2/s2shapeutil_edge_iterator.ccr:i16n:
gIn file included from (../src/s2/s2shapeutil_edge_iterator.h):;22
:
      In file included from | ../src/s2/s2shape.h              ^:
25:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f77i:
nIn file included from e/usr/local/clang/include/absl/base/internal/endian.h :a26b:
s/usr/local/clang/include/absl/base/internal/unaligned_access.hl:_57n:o36n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 _No   n57n | uilnll
i      n| e                     ^ 
void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:In file included from 22s2/s2shapeutil_get_reference_point.cc:
:In file included from 18../src/s2/s2shape.h:
:In file included from 25../src/s2/s2shapeutil_get_reference_point.h:
:In file included from 21../src/s2/s2coder.h:
:In file included from 23../src/s2/s2shape.h:
:In file included from 24/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/strings/cord.h:
:In file included from 77/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/base/internal/endian.h:
:26/usr/local/clang/include/absl/log/internal/check_op.h:
:/usr/local/clang/include/absl/base/internal/unaligned_access.h226::6159::36 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
     22661 |  | vionildi nMea kveoCihde cUknOaplViaglnueedSSttroirneg3(2s(tvdo:i:do*s tarbesalm_&n oonsn,u lclo nps,t  uvionitd3*2 _atb svl)_ n{u
l      l| a                                   ^b
le/usr/local/clang/include/absl/base/nullability.h :p241):;22
:       | note:                                                           ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
l      e|                       ^_
Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char,In file included from  s2/s2shape_nesting_query.ccT:r17a:
iIn file included from t../src/s2/s2shape_nesting_query.hs:>26&:
,In file included from 
../src/s2/s2shape.h      :| 24                   ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h22::
241In file included from :/usr/local/clang/include/absl/log/log.h22::209 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/log_impl.h
:20  :
241In file included from  | /usr/local/clang/include/absl/log/absl_vlog_is_on.h#:d63e:
fi/usr/local/clang/include/absl/log/internal/vlog_config.hn:e133 :a37b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l133l |  i_nNto nRneuglils
t      e| r                     ^A
ndInitialize(VLIn file included from os2/s2shapeutil_get_reference_point.ccg:S18i:
tIn file included from e../src/s2/s2shapeutil_get_reference_point.h*: 21a:
bIn file included from s../src/s2/s2shape.hl:_24n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hv:)37;:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                                    ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:296/usr/local/clang/include/absl/base/nullability.h::63241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    241296 |  | # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
          const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2shape_nesting_query.ccn:u17l:
lIn file included from 
../src/s2/s2shape_nesting_query.h      :| 26                     ^:

In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11:In file included from  s2/s2shapeutil_get_reference_point.ccwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]18
:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:  21157:
 | In file included from V../src/s2/s2shape.hL:o24g:
SIn file included from i../src/s2/base/logging.ht:e21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
a/usr/local/clang/include/absl/log/internal/check_op.hb:l298e: 22S:e twarning: Vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
odu  298l | ecLoinssttH euandsFiogrnTeeds tcOhnalry*( 
a      b| s          ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l  note: oexpanded from macro 'absl_nullable'p
er  a257t | o#rd<e<f(isnted :a:bbsals_incu_lolsatbrleea m_<Ncuhlalra,b lTer
a      i| t                      ^s
>&,
      |                      ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shape_nesting_query.cc::24117::
22In file included from :../src/s2/s2shape_nesting_query.h :26note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shape.h:24  :
241In file included from  | ../src/s2/base/logging.h#:d22e:
fIn file included from i/usr/local/clang/include/absl/log/log.hn:e209 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hs:l20_:
nIn file included from o/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:n63u:
l/usr/local/clang/include/absl/log/internal/vlog_config.hl: 158_:N15o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l
        158|  |                      ^ 
   VLogSite* absl_nIn file included from us2/s2shapeutil_get_reference_point.ccl:l18a:
bIn file included from l../src/s2/s2shapeutil_get_reference_point.he: 21v:
)In file included from ;../src/s2/s2shape.h
:      24| :
              ^In file included from 
../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
257In file included from :/usr/local/clang/include/absl/log/check.h23::37 :
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/log/internal/check_impl.h
:21  :
257/usr/local/clang/include/absl/log/internal/check_op.h | :#299d:e67f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl  _299n | u l l a b l e   _ N u l l a b l e 
        |                        ^ 
           In file included from  s2/s2shapeutil_edge_iterator.cc : 16 :
 In file included from  ../src/s2/s2shapeutil_edge_iterator.h : 22 :
 In file included from  ../src/s2/s2shape.h : 25c:
oIn file included from n../src/s2/s2coder.hs:t23 :
uIn file included from n/usr/local/clang/include/absl/status/status.hs:i67g:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hd: 29c:
hIn file included from a/usr/local/clang/include/absl/strings/cord.hr:*77 :
a/usr/local/clang/include/absl/base/internal/endian.hb:s160l:_36n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll);  
160       | | i                                                                  ^n
li/usr/local/clang/include/absl/base/nullability.hn:e241 :u22i:n tnote: 1expanded from macro 'absl_nonnull'6
_t   241L | o#adde1f6i(nceo nasbts lv_oniodn*n ualbls l__Nnoonnnnuullll
       p| )                     ^ 
{
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) In file included from {s2/s2shapeutil_get_reference_point.cc
:      18| :
                          ^In file included from 
../src/s2/s2shapeutil_get_reference_point.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2shape.h::2224::
 In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b323s:l46_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull   _323N | o n nfurlile
n      d|                       ^v
oid AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2shapeutil_edge_iterator.cc:note: 16expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2shapeutil_edge_iterator.h:  22241:
 | In file included from #../src/s2/s2shape.hd:e25f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.h_:N77o:
n/usr/local/clang/include/absl/base/internal/endian.hn:u168l:l36
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.hIn file included from :s2/s2shapeutil_edge_iterator.cc24::
16In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2shapeutil_edge_iterator.h21::
22In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2shape.h37::
25In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2coder.h21::
23/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 452:/usr/local/clang/include/absl/status/status.h1::67 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h452: | 77A:
B/usr/local/clang/include/absl/base/internal/endian.hS:L250_:L36O:G _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN  A250L | _iDnElFiInNeE _uMiAnKtE1_6C_HtE CLKo_aOdP1_6S(TcRoInNsGt_ EvXoTiEdR*N (aibnstl6_4n_otn)n;u
l      l|  ^p
) /usr/local/clang/include/absl/log/internal/check_op.h{:
449      :| 31                                   ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/base/nullability.h
:241:22  :449  | note:  expanded from macro 'absl_nonnull' 
ex  t241e | r#nd etfeimnpel aatbes lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2shapeutil_edge_iterator.ccn:u16l:
l _NonnulIn file included from l../src/s2/s2shapeutil_edge_iterator.h
:      22| :
                     ^In file included from 
../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2shapeutil_get_reference_point.cc::2918:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2shapeutil_get_reference_point.h::7721:
:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :../src/s2/s2shape.h254::2427:
:In file included from  ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h:37  :
254In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.hi:n21l:
i/usr/local/clang/include/absl/log/internal/check_op.hn:e452 :v1o:i dwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
to/usr/local/clang/include/absl/log/internal/check_op.hr:e4501:625(:v onote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'd
*   a450b | s l _ n o n nxu,l lx ,p ,c ounisntt 1c6h_atr *v )a b{s
l      _| n                          ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:)22
:       | note:                         ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2shapeutil_edge_iterator.cc/usr/local/clang/include/absl/log/internal/check_op.h::16453::
1In file included from :../src/s2/s2shapeutil_edge_iterator.h :warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2shape.h:25:
  In file included from 453../src/s2/s2coder.h | :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:L67O:
GIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hI:N29T:
EIn file included from R/usr/local/clang/include/absl/strings/cord.hN:A77L:
_/usr/local/clang/include/absl/base/internal/endian.hD:E258F:I36N:E _warning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
KE_  C258H | EiCnKl_iOnPe_ SuTiRnItN3G2__EtX TLEoRaNd(3u2i(ncto6n4s_tt )v;o
i      d| *^ 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l449_:n31o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'l
l p  )449  | { 
       e| x                                   ^t
er/usr/local/clang/include/absl/base/nullability.hn: 241t:e22m:p lnote: aexpanded from macro 'absl_nonnull't
e   c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_ NMoankneuClhle
c      k| O                     ^p
String(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2shapeutil_edge_iterator.ccN:o16n:
nIn file included from u../src/s2/s2shapeutil_edge_iterator.hl:l22
:
      In file included from | ../src/s2/s2shape.h                     ^:
25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2shapeutil_get_reference_point.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 77../src/s2/s2shapeutil_get_reference_point.h:
:/usr/local/clang/include/absl/base/internal/endian.h21::
262In file included from :../src/s2/s2shape.h27::24 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from   /usr/local/clang/include/absl/log/check.h262: | 37i:
nIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.hv:o453i:d1 :S twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
e3/usr/local/clang/include/absl/log/internal/check_op.h2:(450v:o25i:d *note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
bs  l450_ | n o n n u l lx ,p ,x ,u icnotn3s2t_ tc hva)r *{ 
a      b| s                          ^l
_nonnu/usr/local/clang/include/absl/base/nullability.hl:l241):
22      :|                          ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1:In file included from  s2/s2shapeutil_edge_iterator.ccwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]16
:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22  :
454In file included from  | ../src/s2/s2shape.hA:B25S:
LIn file included from _../src/s2/s2coder.hL:O23G:
_In file included from I/usr/local/clang/include/absl/status/status.hN:T67E:
RIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hA:L29_:
DIn file included from E/usr/local/clang/include/absl/strings/cord.hF:I77N:
E/usr/local/clang/include/absl/base/internal/endian.h_:M266A:K36E:_ Cwarning: Htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
CK_  O266P | _iSnTlRiInNeG _uEiXnTtE6R4N_(tf lLooaatd)6;4
(      c| o^n
st/usr/local/clang/include/absl/log/internal/check_op.h :v449o:i31d:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl_  n449o | n n uelxlt epr)n  {t
e      m| p                                   ^l
at/usr/local/clang/include/absl/base/nullability.he: 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_ nMoankneuClhle c_kNOopnSnturliln
g      (|                       ^ 
 \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2shapeutil_edge_iterator.cc                     ^:
16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.hIn file included from :s2/s2shapeutil_get_reference_point.cc25::
18In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2shapeutil_get_reference_point.h23::
21In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2shape.h67::
24In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/base/logging.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/check.h77::
37/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 270/usr/local/clang/include/absl/log/internal/check_impl.h::2721::
 /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]454
:1:   warning: 270type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
in/usr/local/clang/include/absl/log/internal/check_op.hl:i450n:e25 :v onote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'd
 S  t450o | r e 6 4 ( v oxi,d *x ,a bcsoln_snto ncnhualrl*  pa,b suli_nnto6n4n_utl lv))
       {| 
                        ^      
|                           ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::241 :22note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'absl_nonnull'  
241 |   #241d | e#fdienfei naeb salb_snlo_nnnounlnlu l_lN o_nNnounlnlu
l      l| 
                     ^      
|                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int In file included from vs2/s2shape_measures.cc1:,18 :
iIn file included from n../src/s2/s2shape_measures.ht: 29v:
2In file included from ,../src/s2/s2shape.h :c27o:
nIn file included from s../src/s2/s2pointutil.ht: 27c:
ha../src/s2/util/math/matrix3x3.hr:*276 :a5b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onnull   276e | x p r t eSx2t_)C H{E C K _ N E ( d e t ,   V T y p e (\0
)      )|                                    ^<
< /usr/local/clang/include/absl/base/nullability.h": 241C:a22n:' tnote:  expanded from macro 'absl_nonnull'i
nv  e241r | s#ed.e fDientee rambisnla_nnto n=n u0l.l" ;_
N      o| n    ^n
ull
../src/s2/base/logging.h      :| 37                     ^:
21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_measures.cc:18:
In file included from ../src/s2/s2shape_measures.h:29:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.hIn file included from :s2/s2shape_nesting_query.cc24::
17In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2shape_nesting_query.h21::
26In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2shape.h37::
25In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2coder.h21::
23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h506::671:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:77:
  In file included from 506/usr/local/clang/include/absl/base/internal/endian.h | :A26B:
S/usr/local/clang/include/absl/base/internal/unaligned_access.hL:_65L:O36G:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA   L65_ | CiHnElCiKn_eO Pv_oIiMdP LU(nCahleicgkn_eGdES,t o>r=e)6
4      (| v^o
id*/usr/local/clang/include/absl/log/internal/check_op.h :a488b:s32l:_ nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
nul  l488  | p ,  iunilnitn6e4 _cto nvs)t e{x
p      r|                                     ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241 :c22h:a rnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea bnsalm_en#o#nInmuplll(  _ N o n n u l l 
        |                       ^ 
      \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2shapeutil_get_reference_point.ccexpanded from macro 'absl_nonnull':
18:
  In file included from 241../src/s2/s2shapeutil_get_reference_point.h | :#21d:
eIn file included from f../src/s2/s2shape.hi:n24e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
No/usr/local/clang/include/absl/log/internal/check_op.hn:n507u:l1l:
       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
In file included from s2/s2shape_nesting_query.cc  :48817 | :
 In file included from  ../src/s2/s2shape_nesting_query.hi:n26l:
iIn file included from n../src/s2/s2shape.he: 25c:
oIn file included from n../src/s2/s2coder.hs:t23e:
xIn file included from p/usr/local/clang/include/absl/status/status.hr: 67c:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:t29 :
cIn file included from h/usr/local/clang/include/absl/strings/cord.ha:r77*:
 /usr/local/clang/include/absl/base/internal/endian.ha:b168s:l36_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
abl  e168  | nianmlei#n#eI mupiln(t 3 2 _ t   L o a d 3 2 ( c o n s t   v\o
i      d| *                               ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l   p257) |  #{d
e      f| i                                   ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _Nonnull
In file included from       s2/s2shapeutil_get_reference_point.cc| :                     ^18
:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       cIn file included from os2/s2shape_nesting_query.ccn:s17t:
 In file included from T../src/s2/s2shape_nesting_query.h1:&26 :
vIn file included from 1../src/s2/s2shape.h,: 25c:
oIn file included from n../src/s2/s2coder.hs:t23 :
TIn file included from 2/usr/local/clang/include/absl/status/status.h&: 67v:
2In file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :c29o:
nIn file included from s/usr/local/clang/include/absl/strings/cord.ht: 77c:
h/usr/local/clang/include/absl/base/internal/endian.ha:r172*: 27a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n172u | liln leixnper tveoxitd)  S{t o r e 3 2\(
v      o| i                                              ^d
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | p#,d eufiinnte3 2a_bts lv_)n o{n
n      u| l                          ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2shapeutil_get_reference_point.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 77../src/s2/s2shapeutil_get_reference_point.h:
:21/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 176../src/s2/s2shape.h::3624::
 In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/log/check.h  :17637 | :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hl:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :u507i:n1t:6 4warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
 L/usr/local/clang/include/absl/log/internal/check_op.ho:a497d:6324:( cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
st v  o497i | d *  ianblsiln_en ocnonnusltle xpp)r  {c
o      n| s                                   ^t
 c/usr/local/clang/include/absl/base/nullability.hh:a241r:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#adbelfei nnea maeb#s#lI_mnpoln(n u l l   _ N o n n u l l 
        |                       ^ 
  \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullablIn file included from es2/s2shape_nesting_query.cc
:      17| :
                      ^In file included from 
../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2shapeutil_get_reference_point.cc67::
18In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2shapeutil_get_reference_point.h29::
21In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2shape.h77::
24/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 180../src/s2/base/logging.h::2721::
 In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :18021 | :
i/usr/local/clang/include/absl/log/internal/check_op.hn:l507i:n1e:  vwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
d /usr/local/clang/include/absl/log/internal/check_op.hS:t498o:r35e:6 4note: (expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'v
oid  *498  | a b s l _ n oinnntu lvl1 ,p ,i nuti nvt26,4 _cto nvs)t  {c
h      a| r                          ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241e | x#pdretfeixnte)  a{b s l _ n o n n u l l   _ N o n n u\l
l      
|                                         ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:83:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/arg.h:36:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
367 warnings generated.
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void StoIn file included from rs2/s2shapeutil_get_reference_point.cce:1186:
(In file included from v../src/s2/s2shapeutil_get_reference_point.ho:i21d:
*In file included from  ../src/s2/s2shape.ha:b24s:
lIn file included from _../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l511 :p13,:  uwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
t16_  t511  | vc)o n{s
t       | c                          ^h
ar*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# dCehfeicnkes tarbcsmlp_tnrounenIumlpll (_
N      o| n            ^n
ull/usr/local/clang/include/absl/base/nullability.h
:      257| :                     ^23
: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24In file included from :
s2/s2shape_nesting_query.ccIn file included from :../src/s2/base/logging.h17::
21In file included from :
../src/s2/s2shape_nesting_query.hIn file included from :/usr/local/clang/include/absl/log/check.h26::
37In file included from :
../src/s2/s2shape.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h25::
21In file included from :
../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_op.h::23512:
:In file included from 17/usr/local/clang/include/absl/status/status.h:: 67warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 512/usr/local/clang/include/absl/strings/cord.h | : 77 :
 /usr/local/clang/include/absl/base/internal/endian.h :c258o:n36s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   258a | bisnll_innuel luaibnlte3 2s_1t,  Lcooands3t2 (cchoanrs*t  avbosild_*n ualblsalb_lneo nsn2u,l
l       | p                ^)
 {/usr/local/clang/include/absl/base/nullability.h
:      257| :                                   ^23
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'241
:22  :257  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     constIn file included from  s2/s2shape_nesting_query.ccc:h17a:
rIn file included from *../src/s2/s2shape_nesting_query.h :a26b:
sIn file included from l../src/s2/s2shape.h_:n25u:
lIn file included from l../src/s2/s2coder.ha:b23l:
eIn file included from  /usr/local/clang/include/absl/status/status.hs:167,:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
tIn file included from  /usr/local/clang/include/absl/strings/cord.hc:h77a:
r/usr/local/clang/include/absl/base/internal/endian.h*: 262a:b27s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b262l | ei nsl2i,n
e       | v                                              ^o
id/usr/local/clang/include/absl/base/nullability.h :S257t:o23r:e 3note: 2expanded from macro 'absl_nullable'(
vo  i257d | *# daebfsiln_en oanbnsull_ln upl,l aubilnet 3_2N_utl lva)b l{e

            | |                           ^                      ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2shapeutil_get_reference_point.cc
:18:
  In file included from 241../src/s2/s2shapeutil_get_reference_point.h | :#21d:
eIn file included from f../src/s2/s2shape.hi:n24e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n513n:u17l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2shape_nesting_query.ccd:e17f:
iIn file included from n../src/s2/s2shape_nesting_query.he: 26a:
bIn file included from s../src/s2/s2shape.hl:_25n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                     ^77
:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inlineIn file included from  s2/s2shapeutil_get_reference_point.ccu:i18n:
tIn file included from 6../src/s2/s2shapeutil_get_reference_point.h4:_21t:
 In file included from L../src/s2/s2shape.ho:a24d:
6In file included from 4../src/s2/base/logging.h(:c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37v:
oIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hd:*21 :
a/usr/local/clang/include/absl/log/internal/check_op.hb:s514l:_13n:o nwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
ll   p514) |  c{o
n      s| t                                   ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef iCnhee cakbsstlr_cnmopnfnaullsle I_mNpoln(n
u      l| l            ^

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2shape_nesting_query.ccs2/s2shapeutil_get_reference_point.cc::1718:
:
In file included from In file included from ../src/s2/s2shape_nesting_query.h../src/s2/s2shapeutil_get_reference_point.h::2621:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s2shape.h::2524:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/base/logging.h::2321:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.h::6737:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.h::2921:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/cord.h::51577::
17/usr/local/clang/include/absl/base/internal/endian.h:: 270:warning: 27type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]515
 |      270  | cionnlsitn ec hvaori*d  aSbtsolr_en6u4l(lvaobilde*  sa1b,s lc_onnosntn uclhla rp*,  aubisnlt_6n4u_ltl avb)l e{ 
s      2| ,                          ^

      | /usr/local/clang/include/absl/base/nullability.h                ^:
241:22/usr/local/clang/include/absl/base/nullability.h:: 257note: :expanded from macro 'absl_nonnull'23
:   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
697 warnings generated.
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2wedge_relations.cc -o s2/s2wedge_relations.o
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/s2winding_operation.cc -o s2/s2winding_operation.o
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:83:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/arg.h:36:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_measures.cc:25:
In file included from ../src/s2/s2loop_measures.h:34:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2shapeutil_get_reference_point.cc | :#18d:
eIn file included from f../src/s2/s2shapeutil_get_reference_point.hi:n21e:
 In file included from a../src/s2/s2shape.hb:s24l:
_In file included from n../src/s2/base/logging.ho:n22n:
uIn file included from l/usr/local/clang/include/absl/log/log.hl: 209_:
NIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hn:n20u:
lIn file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.h
:      63| :
                     ^
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209In file included from :
s2/s2shapeutil_get_reference_point.ccIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h18::
22In file included from :
../src/s2/s2shapeutil_get_reference_point.h/usr/local/clang/include/absl/log/internal/log_message.h::21158:
:In file included from 32../src/s2/s2shape.h:: 24warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:22:
  In file included from 158/usr/local/clang/include/absl/log/log.h | : 209 :
LIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hg:M20e:
sIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.ha:g63e:
&/usr/local/clang/include/absl/log/internal/vlog_config.h :o63p:e43r:a twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
<<(   v63o | i d *e xapblsilc_intu lcloanbsltee x pvr)  V{L
o      g| S                               ^i
te/usr/local/clang/include/absl/base/nullability.h(:c257o:n23s:t  note: cexpanded from macro 'absl_nullable'h
ar  *257  | a#bdself_innoen naublsll _fn)u
l      l| a                                          ^b
le/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        241|  |                       ^#
define absl_nonnull In file included from _s2/s2shapeutil_conversion.ccN:o18n:
nIn file included from u../src/s2/s2shapeutil_conversion.hl:l27
:
      In file included from | ../src/s2/s2point.h                     ^:
25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable In file included from  s2/s2shapeutil_get_reference_point.ccv:)18 :
{In file included from 
../src/s2/s2shapeutil_get_reference_point.h      :| 21                                     ^:

In file included from ../src/s2/s2shape.h/usr/local/clang/include/absl/base/nullability.h::24257:
:In file included from 23../src/s2/base/logging.h:: 22note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/log.h:  209257:
 | In file included from #/usr/local/clang/include/absl/log/internal/log_impl.hd:e20f:
iIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.he: 63a:
b/usr/local/clang/include/absl/log/internal/vlog_config.hs:l96_:n60u:l lwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
le _   N96u | l l afbrliee
n      d|                        ^i
nt log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.hIn file included from :s2/s2shapeutil_get_reference_point.cc209::
18In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :../src/s2/s2shapeutil_get_reference_point.h22::
21/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 191../src/s2/s2shape.h::4324::
 In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22:
In file included from /usr/local/clang/include/absl/log/log.h:  209191:
 | In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h :L20o:
gIn file included from M/usr/local/clang/include/absl/log/absl_vlog_is_on.he:s63s:
a/usr/local/clang/include/absl/log/internal/vlog_config.hg:e119&: 15o:p ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tor  <119< | ( s tcdo:n:sito sc_hbaars*e &a b(s*la_bnsoln_nnuolnln ucloln smt) (fsitlde:_:;i
o      s| _              ^b
ase/usr/local/clang/include/absl/base/nullability.h&: 241o:s22):) ;note: 
expanded from macro 'absl_nonnull'      
|                                           ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnuIn file included from ls2/s2shapeutil_conversion.ccl: 18v:
)In file included from ;../src/s2/s2shapeutil_conversion.h
:      27| :
                                    ^In file included from 
../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h::36241:
:In file included from 22../src/s2/base/casts.h:: 34:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/log.h
:209:
  In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h | :#22d:
e/usr/local/clang/include/absl/log/internal/log_message.hf:i340n:e46 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non  n340u | l l  f_rNioennndu lvlo
i      d|                       ^A
bslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2shapeutil_get_reference_point.ccn:n18u:
lIn file included from l../src/s2/s2shapeutil_get_reference_point.h
:      21| :
                     ^In file included from 
../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2shapeutil_get_reference_point.ccl:l18 :
_In file included from N../src/s2/s2shapeutil_get_reference_point.ho:n21n:
uIn file included from l../src/s2/s2shape.hl:
25      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnaliIn file included from gs2/s2shapeutil_conversion.ccn:e18d:
LIn file included from o../src/s2/s2shapeutil_conversion.ha:d271:
6In file included from (../src/s2/s2point.hc:o25n:
sIn file included from t../src/s2/util/coding/coder.h :v36o:
iIn file included from d../src/s2/base/casts.h*: 36a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hp:)21 :
{/usr/local/clang/include/absl/log/internal/check_op.h
:      502| :                                            ^1
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
241:22:   502 | note: Aexpanded from macro 'absl_nonnull'B
SL  _241L | O#Gd_eIfNiTnEeR NaAbLs_lC_HnEoCnKn_uOlPl_ I_MNPoLn(nCuhlelc
k      _| E                     ^Q
, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                In file included from  s2/s2shapeutil_get_reference_point.cc : 18\:

In file included from       ../src/s2/s2shapeutil_get_reference_point.h| :                               ^21
:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2shape.h::25725::
23In file included from :../src/s2/s2coder.h :note: 23expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/status/status.h  :25767 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
nIn file included from e/usr/local/clang/include/absl/strings/cord.h :a77b:
sIn file included from l/usr/local/clang/include/absl/base/internal/endian.h_:n26u:
l/usr/local/clang/include/absl/base/internal/unaligned_access.hl:a45b:l45e:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab   l45e | 
i      n| l                      ^i
ne uint32_t In file included from Us2/s2shapeutil_conversion.ccn:a18l:
iIn file included from g../src/s2/s2shapeutil_conversion.hn:e27d:
LIn file included from o../src/s2/s2point.ha:d25:
In file included from ../src/s2/util/coding/coder.h3:236(:
cIn file included from o../src/s2/base/casts.hn:s36t:
 In file included from v../src/s2/base/logging.ho:i21d:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l502l: 1p:)  warning: {type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      | /usr/local/clang/include/absl/log/internal/check_op.h                                            ^:
489:47/usr/local/clang/include/absl/base/nullability.h:: 241note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'22
: note:   expanded from macro 'absl_nonnull'489
 |     241  |  # d ecfoinnset  aTb1s&l _vn1o,n ncuolnls t_ NTo2n&n uvl2l,
       c| o                     ^n
st char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2shapeutil_get_reference_point.ccl:l18
:
      In file included from | ../src/s2/s2shapeutil_get_reference_point.h                     ^:
21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2shapeutil_conversion.ccn:u18l:
lIn file included from  ../src/s2/s2shapeutil_conversion.h_:N27o:
nIn file included from n../src/s2/s2point.hu:l25l:

In file included from       ../src/s2/util/coding/coder.h| :                     ^36
:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* In file included from as2/s2shapeutil_get_reference_point.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_get_reference_point.hu:l21l:
aIn file included from b../src/s2/s2shape.hl:e25 :
nIn file included from a../src/s2/s2coder.hm:e23#:
#In file included from I/usr/local/clang/include/absl/status/status.hm:p67l:
(In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 77 :
 In file included from  /usr/local/clang/include/absl/base/internal/endian.h : 26 :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h : 57 : 36\:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                               ^

/usr/local/clang/include/absl/base/nullability.h:   25757: | 23i:n lnote: iexpanded from macro 'absl_nullable'n
e   v257o | i#dd eUfnianlei ganbesdlS_tnourlel1a6b(lveo i_dN*u lalbasbll_en
o      n| n                      ^u
ll p, uinIn file included from ts2/s2shapeutil_conversion.cc1:618_:
tIn file included from  ../src/s2/s2shapeutil_conversion.hv:)27 :
{In file included from 
../src/s2/s2point.h      :| 25                                   ^:

In file included from ../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/base/nullability.h36::
241In file included from :../src/s2/base/casts.h22::36 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
  In file included from 241/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b502s:l1_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 498_:N35o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
l
      |                        ^498
 |       int v1, int v2, const char* absl_nonnull exprtext) {  In file included from  s2/s2shapeutil_get_reference_point.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_get_reference_point.h : 21 :
 In file included from  ../src/s2/s2shape.h : 25 :
 In file included from \../src/s2/s2coder.h
:      23| :
                                  ^In file included from 
/usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:77  :
241In file included from  | /usr/local/clang/include/absl/base/internal/endian.h#:d26e:
f/usr/local/clang/include/absl/base/internal/unaligned_access.hi:n61e: 36a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u61l | li n_lNionnen uvloli
d       | U                     ^n
alignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^In file included from 
s2/s2shapeutil_conversion.cc:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2shapeutil_conversion.h241::2722:
:In file included from  ../src/s2/s2point.h:note: 25expanded from macro 'absl_nonnull':

In file included from ../src/s2/util/coding/coder.h  :24136 | :
#In file included from d../src/s2/base/casts.he:f36i:
nIn file included from e../src/s2/base/logging.h :a21b:
sIn file included from l/usr/local/clang/include/absl/log/check.h_:n37o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
 _/usr/local/clang/include/absl/log/internal/check_op.hN:o503n:n1u:l lwarning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                      ^
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: In file included from note: s2/s2shapeutil_get_reference_point.ccexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h  :48821 | :
 In file included from  ../src/s2/s2shape.hi:n25l:
iIn file included from n../src/s2/s2coder.he: 23c:
oIn file included from n/usr/local/clang/include/absl/status/status.hs:t67e:
xIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.hr: 29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t77 :
c/usr/local/clang/include/absl/base/internal/endian.hh:a164r:*27 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nu  l164l | aibnllei nnea mveo#i#dI mSptlo(r e 1 6 ( v o i d *   a b s l _ n o n n\u
l      l|                                 ^p
, /usr/local/clang/include/absl/base/nullability.hu:i257n:t231:6 _note: texpanded from macro 'absl_nullable' 
v)   257{ | 
#      d| e                          ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _NonnullIn file included from 
s2/s2shapeutil_conversion.cc      :| 18                     ^:

In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       coIn file included from ns2/s2shapeutil_get_reference_point.ccs:t18 :
TIn file included from 1../src/s2/s2shapeutil_get_reference_point.h&: 21v:
1In file included from ,../src/s2/s2shape.h :c25o:
nIn file included from s../src/s2/s2coder.ht: 23T:
2In file included from &/usr/local/clang/include/absl/status/status.h :v672:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h :c77h:
a/usr/local/clang/include/absl/base/internal/endian.hr:*168 :a36b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn  u168l | li nelxipnret euxitn)t 3{2 _ t   L o\a
d      3| 2                                              ^(
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22v:o inote: dexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bps)l _{n
o      n| n                                   ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

      |                        ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from s2/s2shapeutil_conversion.cc/usr/local/clang/include/absl/strings/cord.h::1877:
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/s2shapeutil_conversion.h::17227::
27In file included from :../src/s2/s2point.h :warning: 25type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/coding/coder.h:36  :
172In file included from  | ../src/s2/base/casts.hi:n36l:
iIn file included from n../src/s2/base/logging.he: 21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd: 37S:
tIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hr:e213:
2/usr/local/clang/include/absl/log/internal/check_op.h(:v503o:i1d:*  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n497o:n32n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
p, u  i497n | t 3 2i_ntl ivn)e  {c
o      n| s                          ^t
ex/usr/local/clang/include/absl/base/nullability.hp:r241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ch  a241r | *# daebfsiln_en ualblsalb_lneo nnnaumlel# #_INmopnln(u l l 
        |                       ^ 
            \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullaIn file included from bs2/s2shapeutil_get_reference_point.ccl:e18
:
      In file included from | ../src/s2/s2shapeutil_get_reference_point.h                      ^:
21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2shapeutil_conversion.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2shapeutil_conversion.h/usr/local/clang/include/absl/status/internal/status_internal.h::2729:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/strings/cord.h::2577:
:
In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/internal/endian.h::36176:
:In file included from 36../src/s2/base/casts.h:: 36:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h  :17637 | :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hl:i21n:
e/usr/local/clang/include/absl/log/internal/check_op.h :u503i:n1t:6 4warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 L/usr/local/clang/include/absl/log/internal/check_op.ho:a498d:6354:( cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
st   v498o | i d *   a b siln_tn ovn1n,u liln tp )v 2{,
       c| o                                   ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ee xapbrstle_xnto)n n{u l l   _ N o n n u l l 
        |                       ^ 
 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* In file included from as2/s2shapeutil_conversion.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_conversion.ho:n27n:
uIn file included from l../src/s2/s2point.hl: 25p:
)In file included from  ../src/s2/util/coding/coder.h{:
36      :
| In file included from                                    ^../src/s2/base/casts.h
:36:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/base/logging.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nonnull'37
:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h241: | 21#:
d/usr/local/clang/include/absl/log/internal/check_op.he:f504i:n1e:  awarning: bIn file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]ss2/s2shapeutil_coding.cc
l:_18n:
o  In file included from n504../src/s2/s2shapeutil_coding.hn | :AuBlSl41L :
__LIn file included from NO../src/s2/base/casts.hoG:n_34nI:
NuIn file included from lT/usr/local/clang/include/absl/log/log.hEl:
R209      N:
| AIn file included from L                     ^/usr/local/clang/include/absl/log/internal/log_impl.h_
:C22H:
EIn file included from C/usr/local/clang/include/absl/log/internal/log_message.hK:_53O:
P_/usr/local/clang/include/absl/types/source_location.hI:M113P:L19(:C hwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
k_LE  ,113  | < = ) 
        |  ^c
on/usr/local/clang/include/absl/log/internal/check_op.hsIn file included from :ts2/s2shapeutil_get_reference_point.cc 488:c:18h32:
a:In file included from r ../src/s2/s2shapeutil_get_reference_point.h*note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 21
a:
bIn file included from s../src/s2/s2shape.h  l:488_25 | n :
 oIn file included from ni../src/s2/s2coder.hnn:ul23li:
lnIn file included from  e/usr/local/clang/include/absl/status/status.hf :ic67lo:
enIn file included from s_/usr/local/clang/include/absl/status/internal/status_internal.hnt:ae29mx:
peIn file included from r /usr/local/clang/include/absl/strings/cord.h =: c77_o:
_n/usr/local/clang/include/absl/base/internal/endian.hbs:ut254i :lc27th:air n*warning:  _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aF
bIsL  lE_254(n | )iu)lnlla bi{nl
ee        | v                  ^no
iadm/usr/local/clang/include/absl/base/nullability.h e:S#241#t:Iom22rp:el (1note: 6expanded from macro 'absl_nonnull' (
 v   o 241 i | d #*d   e a f ibn s el   _ anbo sn ln_ un\lol
n n      pu,| l                               ^ l
u i_n/usr/local/clang/include/absl/base/nullability.hNto:1In file included from n2576s2/s2shapeutil_contains_brute_force.ccn:_:tu2318 l::
vl)
 In file included from        {note: ../src/s2/s2shapeutil_contains_brute_force.hexpanded from macro 'absl_nullable'| 
:
                     ^      21
  | :
257                          ^In file included from  | 
../src/s2/s2point.h#:/usr/local/clang/include/absl/base/nullability.hd24e::
f241In file included from i:/usr/local/clang/include/absl/hash/hash.hn22:e:89  :
anote: In file included from expanded from macro 'absl_nonnull'b/usr/local/clang/include/absl/hash/internal/hash.h
s:  l79241_:
 | nIn file included from #u/usr/local/clang/include/absl/base/internal/endian.hIn file included from dl:s2/s2shapeutil_coding.ccel26a:f:
ib18n/usr/local/clang/include/absl/base/internal/unaligned_access.hel:
: eIn file included from ../src/s2/s2shapeutil_coding.ha :b_41sN:
luIn file included from _l../src/s2/base/casts.hnl:ao34bn:
nlIn file included from ue/usr/local/clang/include/absl/log/log.hl
:l      209 | :
_                      ^In file included from N
/usr/local/clang/include/absl/log/internal/log_impl.ho:n22n:
uIn file included from l/usr/local/clang/include/absl/log/internal/log_message.hl:
53      :
| /usr/local/clang/include/absl/types/source_location.h                     ^:
In file included from 133s2/s2shapeutil_conversion.cc::2518::
 In file included from warning: ../src/s2/s2shapeutil_conversion.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
27:
In file included from ../src/s2/s2point.h:  25133:
 | In file included from  ../src/s2/util/coding/coder.h :c36o:
nIn file included from s../src/s2/base/casts.ht:e36x:
pIn file included from r../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht: 37c:
hIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hrIn file included from :*s2/s2shapeutil_get_reference_point.cc 21:a:
18b/usr/local/clang/include/absl/log/internal/check_op.h:
s:In file included from l504../src/s2/s2shapeutil_get_reference_point.h_::n121o::
n In file included from n../src/s2/s2shape.hwarning: u:ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25l
:
 In file included from f/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2coder.hi::l48923e::
_47In file included from n:/usr/local/clang/include/absl/status/status.ha m:note: e67(expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
)
In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:  o29n489:
s | In file included from t /usr/local/clang/include/absl/strings/cord.h  :n o 77e :
x /usr/local/clang/include/absl/base/internal/endian.hcc:eo258pn:ts36 t:{  
Twarning:       1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| &
                        ^ 
v  1/usr/local/clang/include/absl/base/nullability.h258,: |  241ic:no22ln:is ntnote: e expanded from macro 'absl_nonnull' T
u2i&n  t 2413v | 2#2_dt,e  fLicoonaends 3at2 bc(schlo_anrnso*t n anvbuolsildl*_  _naNobosnnlnn_uunllolln 
ne      ux| lp                     ^lr
 tpe)x t{)
       {|                                     ^ 
  In file included from /usr/local/clang/include/absl/base/nullability.h s2/s2shapeutil_coding.cc\::
24118      ::
| 22In file included from                                               ^:../src/s2/s2shapeutil_coding.h
 :/usr/local/clang/include/absl/base/nullability.h41note: ::
expanded from macro 'absl_nonnull'241In file included from 
:../src/s2/base/casts.h  22:241:34 |  :
#note: In file included from dexpanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/log.he
:f209  i:
n241In file included from e | /usr/local/clang/include/absl/log/internal/log_impl.h #:ad22be:
sfIn file included from li/usr/local/clang/include/absl/log/internal/log_message.h_n:en53o :
n/usr/local/clang/include/absl/types/source_location.hna:ub142ls:ll25 _:_n Nowarning: ontype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nn
unlul  l 142_l | 
N        o| nc                     ^no
nusltle
x      p| r                     ^ 
const char* absl_nonnull function_name() In file included from cs2/s2shapeutil_get_reference_point.cco:18n:
sIn file included from t../src/s2/s2shapeutil_get_reference_point.h :n21o:
eIn file included from x../src/s2/s2shape.hc:e25p:
tIn file included from  ../src/s2/s2coder.h{:
23      :
| In file included from                         ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:note: 77expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/base/internal/endian.h:  262241: | 27#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne   a262b | siln_lnionnen uvloli d_ NSotnonIn file included from rues2/s2shapeutil_conversion.ccl3l2:
(18      v:
| o                     ^In file included from i
d../src/s2/s2shapeutil_conversion.h*: 27a:
bIn file included from s../src/s2/s2point.hl:_25n:
oIn file included from n../src/s2/util/coding/coder.hn:uIn file included from 36ls2/s2shapeutil_coding.ccl:
: In file included from 18p../src/s2/base/casts.h:
,:In file included from  36../src/s2/s2shapeutil_coding.hu:
:iIn file included from 41n../src/s2/base/logging.h:
t:In file included from 321../src/s2/base/casts.h2:
:_In file included from 34t/usr/local/clang/include/absl/log/check.h:
 :In file included from v37/usr/local/clang/include/absl/log/log.h):
: In file included from 209{/usr/local/clang/include/absl/log/internal/check_impl.h:

:In file included from       21/usr/local/clang/include/absl/log/internal/log_impl.h| :
:                          ^/usr/local/clang/include/absl/log/internal/check_op.h22
::
504/usr/local/clang/include/absl/base/nullability.hIn file included from ::/usr/local/clang/include/absl/log/internal/log_message.h1241:::53 22:
warning: :/usr/local/clang/include/absl/types/source_location.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :
note: 150expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/log/internal/check_op.h
40::  497 241:warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32#
d:e   fnote: 150expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i | n
 e    a   b 497s l |   _ n  io nn ln ui nl le    _c oN on n sn tue xl lp 
r         c| c                     ^oon
nsstt  cchhaarr**  aabbssll__nnuolnlnaubllle  fnialmee_#n#aImmepIn file included from )ls2/s2shapeutil_get_reference_point.cc
(:       18|  :
                                        ^In file included from  
../src/s2/s2shapeutil_get_reference_point.h : /usr/local/clang/include/absl/base/nullability.h 21 ::
 241In file included from  :../src/s2/s2shape.h 22: : 25  :
 note: In file included from  expanded from macro 'absl_nonnull'../src/s2/s2coder.h 
 :   23\241
:
 |       In file included from #| /usr/local/clang/include/absl/status/status.hd                               ^:e
67f:
iIn file included from n/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/internal/status_internal.he:: 25729a::
b23In file included from s:/usr/local/clang/include/absl/strings/cord.hl :_note: 77expanded from macro 'absl_nullable'n:
o
/usr/local/clang/include/absl/base/internal/endian.hn:  n266257u: | l#36ld: e _fwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ion
nen u  alb266ls | 
il      n_| ln                     ^iu
lnlea bulien t_6N4u_ltl aLbolaed
6      4| (                      ^c
onst voidIn file included from *In file included from s2/s2shapeutil_conversion.cc s2/s2shapeutil_coding.cca::b1818s:
:
lIn file included from In file included from _../src/s2/s2shapeutil_conversion.h../src/s2/s2shapeutil_coding.hn::o2741n:
:
nIn file included from In file included from u../src/s2/s2point.h../src/s2/base/casts.hl::l2534 :
:
pIn file included from In file included from )../src/s2/util/coding/coder.h/usr/local/clang/include/absl/log/log.h ::{36209
:
:
      In file included from In file included from | ../src/s2/base/casts.h/usr/local/clang/include/absl/log/internal/log_impl.h                                   ^::
3622:
/usr/local/clang/include/absl/base/nullability.h:
In file included from :In file included from ../src/s2/base/logging.h241/usr/local/clang/include/absl/log/internal/log_message.h:::212253:
::
In file included from  /usr/local/clang/include/absl/types/source_location.h/usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'absl_nonnull':165
37::
  15In file included from 241:/usr/local/clang/include/absl/log/internal/check_impl.h |  #:warning: d21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e:

/usr/local/clang/include/absl/log/internal/check_op.hf:i504  n:165e1 |   :a b csowarning: lntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_sn
to /usr/local/clang/include/absl/log/internal/check_op.hncn:hu498al:rl*35  :_aN bonote: snexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'ln
_unlo  ln
498n      u | |  l                     ^ l 
  f i lien_tn avm1e,_  i=n t" "v;2
,       | c              ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r In file included from *note: s2/s2shapeutil_get_reference_point.ccexpanded from macro 'absl_nonnull' :
a18b  :
s241In file included from l | ../src/s2/s2shapeutil_get_reference_point.h_#n:do21en:
fnIn file included from iu../src/s2/s2shape.hnl:el25 :
e In file included from ax../src/s2/s2coder.hbp:rs23lt:
e_In file included from xnt/usr/local/clang/include/absl/status/status.ho): n67{n :
u In file included from l /usr/local/clang/include/absl/status/internal/status_internal.h l:  29_ :
N In file included from o /usr/local/clang/include/absl/strings/cord.hn :n 77 u:
l /usr/local/clang/include/absl/base/internal/endian.hl :
 270       :|  27                     ^ :
\ 
warning:       type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                                  ^
/usr/local/clang/include/absl/base/nullability.h  :270241 | :i22n:l inote: nexpanded from macro 'absl_nonnull'e
 v  o241i | d# dSetfoirnee6 4a(bvsoli_dn*o nanbuslll_ n_oNnonnunlull lp
,       | u                     ^i
nt64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shapeutil_contains_brute_force.cc241: | 18#:
dIn file included from e../src/s2/s2shapeutil_contains_brute_force.hf:i21n:
eIn file included from  ../src/s2/s2point.ha:b24s:
lIn file included from _/usr/local/clang/include/absl/hash/hash.hn:o89n:
nIn file included from u/usr/local/clang/include/absl/hash/internal/hash.hl:l79 :
_In file included from N/usr/local/clang/include/absl/base/internal/endian.ho:n26n:
u/usr/local/clang/include/absl/base/internal/unaligned_access.hl:l45
:      45| :                      ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2shapeutil_coding.cc241::1822:
:In file included from  ../src/s2/s2shapeutil_coding.h:note: 41expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/casts.h:  34241:
 | In file included from #/usr/local/clang/include/absl/log/log.hd:e209f:
iIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.he: 22a:
b/usr/local/clang/include/absl/log/internal/log_message.hs:l78_:n26o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _   N78o | n n uLlolg
M      e| s                     ^s
age(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2shapeutil_contains_brute_force.cc :_18N:
oIn file included from n../src/s2/s2shapeutil_contains_brute_force.hn:u21l:
lIn file included from 
../src/s2/s2point.h      :| 24                     ^:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inlinIn file included from es2/s2shapeutil_coding.cc :u18i:
nIn file included from t../src/s2/s2shapeutil_coding.h6:441_:
tIn file included from  ../src/s2/base/casts.hU:n34a:
lIn file included from i/usr/local/clang/include/absl/log/log.hg:n209e:
dIn file included from L/usr/local/clang/include/absl/log/internal/log_impl.ho:a22d:
6/usr/local/clang/include/absl/log/internal/log_message.h4:(80c:o26n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]v
oid   *80  | a b sLlo_gnMoensnsualgle (pc)o n{s
t       | c                                            ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dfeiflien,e  ianbts ll_innoen,n
u      l| l                         ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:In file included from 34s2/s2shapeutil_contains_brute_force.cc:
:In file included from 18/usr/local/clang/include/absl/log/log.h:
:In file included from 209../src/s2/s2shapeutil_contains_brute_force.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/log_impl.h:
:In file included from 22../src/s2/s2point.h:
:24/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 82/usr/local/clang/include/absl/hash/hash.h::2689::
 In file included from /usr/local/clang/include/absl/hash/internal/hash.hwarning: :79type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
   82/usr/local/clang/include/absl/base/internal/unaligned_access.h | : 57 :L36o:g Mwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sage   (57c | oinnslti nceh avro*i da bUsnla_lniognnneudlSlt ofriel1e6,( vionitd *l ianbes,l
_      n| o                         ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :p22,:  unote: iexpanded from macro 'absl_nonnull'n
t1  6241_ | t# dve)f i{n
e       | a                                   ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22nu:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32In file included from (s2/s2shapeutil_coding.ccv:o18i:
dIn file included from *../src/s2/s2shapeutil_coding.h :a41b:
sIn file included from l../src/s2/base/casts.h_:n34o:
nIn file included from n/usr/local/clang/include/absl/log/log.hu:l209l:
 In file included from p/usr/local/clang/include/absl/log/internal/log_impl.h,: 22u:
i/usr/local/clang/include/absl/log/internal/log_message.hn:t1193:241_:t  warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 {
        | 119                                   ^ | 
  /usr/local/clang/include/absl/base/nullability.hL:o241g:M22e:s snote: aexpanded from macro 'absl_nonnull'g
e&   241T | o#SdienfkiAnles oa(basbls_ln:o:nLnouglSli n_kN*o nanbuslll_
n      o| n                     ^n
ull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from In file included from /usr/local/clang/include/absl/base/internal/endian.hs2/s2shapeutil_coding.cc::2618:
:
In file included from /usr/local/clang/include/absl/base/internal/unaligned_access.h../src/s2/s2shapeutil_coding.h::6541::
36In file included from :../src/s2/base/casts.h :34warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/log.h:209:
In file included from    /usr/local/clang/include/absl/log/internal/log_impl.h65: | 22i:
n/usr/local/clang/include/absl/log/internal/log_message.hl:i121n:e41 :v owarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
 Un  a121l | i g nLeodgSMteosrsea6g4e(&v oTiodS*i nakbOsnll_yn(oanbnsull:l: Lpo,g Suiinnkt*6 4a_bts lv_)n o{n
n      u| l                                   ^l
 s/usr/local/clang/include/absl/base/nullability.hi:n241k:)22;:
       | note:                                         ^expanded from macro 'absl_nonnull'
In file included from 
/usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_conversion.cc  ::24124118 | :#:
22dIn file included from :e../src/s2/s2shapeutil_conversion.h fnote: :iexpanded from macro 'absl_nonnull'27n
e:
   In file included from 241a../src/s2/s2point.h | b:#sd25le_:
fniIn file included from on../src/s2/util/coding/coder.hne:n 36ua:
lblIn file included from s l../src/s2/base/casts.h__:Nno36on:
nnnIn file included from uul../src/s2/base/logging.hll:l
21       _:
| N                     ^In file included from o
n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                     ^:

/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable namIn file included from es2/s2shapeutil_coding.cc#:#18I:
mIn file included from p../src/s2/s2shapeutil_coding.hl:(41 :
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 158\:
32      :|                                 ^warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257:  23158: |   note:  expanded from macro 'absl_nullable'L
og  M257e | s#sdaegfei&n eo paebrsalt_onru<l<l(avbolied *_ Naullabblsel
_      n| u                      ^l
lable  v) {
      In file included from | s2/s2shapeutil_conversion.cc                               ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2shapeutil_conversion.h::25727::
23In file included from :../src/s2/s2point.h :25note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/util/coding/coder.h:36  :
257In file included from  | ../src/s2/base/casts.h#:d36e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
b/usr/local/clang/include/absl/log/internal/check_op.hl:e505 :_1N:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bl/usr/local/clang/include/absl/log/internal/check_op.he:
489      :| 47                      ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       constIn file included from  s2/s2shapeutil_coding.ccT:118&:
 In file included from v../src/s2/s2shapeutil_coding.h1:,41 :
cIn file included from o../src/s2/base/casts.hn:s34t:
 In file included from T/usr/local/clang/include/absl/log/log.h2:&209 :
vIn file included from 2/usr/local/clang/include/absl/log/internal/log_impl.h,: 22c:
o/usr/local/clang/include/absl/log/internal/log_message.hn:s161t: 38c:h awarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 ab  s161l | _ n oLnonguMlels seaxgper&t eoxpte)r a{t o r < < (\c
o      n| s                                              ^t
 v/usr/local/clang/include/absl/base/nullability.ho:i241:22:d *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  a bvs)l _{n
o      n| n                                     ^u
ll/usr/local/clang/include/absl/base/nullability.h :_257N:o23n:n unote: lexpanded from macro 'absl_nullable'l

      |                        ^257
 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: In file included from warning: s2/s2shapeutil_coding.cctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
18:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2shapeutil_coding.h497::4132:
:In file included from  ../src/s2/base/casts.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'34
:
In file included from /usr/local/clang/include/absl/log/log.h:209  :
497In file included from  | /usr/local/clang/include/absl/log/internal/log_impl.h : 22i:
n/usr/local/clang/include/absl/log/internal/log_message.hl:i179n:e35 :c owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
tex  p179r |   c oLnosgtM ecshsaarg*e &a bosple_rnautlolra<b<l(ew cnhaamre_#t#*I mapbls(l _ n u l l a b l e   v ) ; 
        |                                    ^ 
 \/usr/local/clang/include/absl/base/nullability.h
:      257| :                               ^23
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullable'257
:23:   257note:  | expanded from macro 'absl_nullable'#
de  f257i | n#ed eafbisnle_ naublslla_bnluel l_aNbullel a_bNluel
l      a| b                      ^l
e
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498In file included from :s2/s2shapeutil_coding.cc35::18 :
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'../src/s2/s2shapeutil_coding.h
:41:
In file included from   ../src/s2/base/casts.h498: | 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
iIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.ht: 22v:
1/usr/local/clang/include/absl/log/internal/log_message.h,: 190i:n42t:  vwarning: 2type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 con  s190t |   c hLaorg*M easbssalg_en&o nonpuelrla teoxrp<r<t(esxttd): :{o s t r e a m &   ( * a b s l _ n o\n
n      u| l                                  ^l
 m/usr/local/clang/include/absl/base/nullability.h):(241s:t22d:: :note: oexpanded from macro 'absl_nonnull's
tr  e241a | m#&d eofsi)n)e; 
a      bs| l                                         ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(      In file included from  s2/s2shapeutil_coding.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_coding.h : 41 :
 In file included from  ../src/s2/base/casts.h : 34\:

In file included from       /usr/local/clang/include/absl/log/log.h| :                               ^209
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_impl.h::25722::
23/usr/local/clang/include/absl/log/internal/log_message.h:: 340note: :expanded from macro 'absl_nullable'46
:   warning: 257type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i340n | e   afbrsile_nndu lvloaibdl eA b_sNluFlolrambalteF
l      u| s                      ^h
(StringifySiIn file included from ns2/s2shapeutil_conversion.cck:*18 :
aIn file included from b../src/s2/s2shapeutil_conversion.hs:l27_:
nIn file included from o../src/s2/s2point.hn:n25u:
lIn file included from l../src/s2/util/coding/coder.h :s36i:
nIn file included from k../src/s2/base/casts.h,:
36      :
| In file included from                                              ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :note: 21expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/log/internal/check_op.h:507  :2411 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
in/usr/local/clang/include/absl/log/internal/check_op.he: 489a:b47s:l _note: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'o
nnu  l489l |   _ N o n n uclolnIn file included from 
ss2/s2shapeutil_contains_brute_force.cc      t:|  18                     ^T:

1In file included from &../src/s2/s2shapeutil_contains_brute_force.h :v211:
,In file included from  ../src/s2/s2point.hc:o24n:
sIn file included from t/usr/local/clang/include/absl/hash/hash.h :T892:
&In file included from  /usr/local/clang/include/absl/hash/internal/hash.hv:279,:
 c/usr/local/clang/include/absl/base/internal/endian.ho:n160s:t36 :c hwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
* ab  s160l | _innolninnuel lu ienxtp1r6t_etx tL)o a{d 1 6 ( c o\n
s      t|                                                ^v
oi/usr/local/clang/include/absl/base/nullability.hd:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld epf)i n{e
       a| b                                   ^s
l_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_conversion.cc
:18:
In file included from   ../src/s2/s2shapeutil_conversion.h164: | 27i:
nIn file included from l../src/s2/s2point.hi:n25e:
 In file included from v../src/s2/util/coding/coder.ho:i36d:
 In file included from S../src/s2/base/casts.ht:o36r:
eIn file included from 1../src/s2/base/logging.h6:(21v:
oIn file included from i/usr/local/clang/include/absl/log/check.hd:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
n/usr/local/clang/include/absl/log/internal/check_op.ho:n507n:u1l:l  warning: ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension],
 u/usr/local/clang/include/absl/log/internal/check_op.hi:n497t:1326:_ tnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'v
) {
        497|  |                           ^ 
 i/usr/local/clang/include/absl/base/nullability.hn:l241i:n22e:  cnote: oexpanded from macro 'absl_nonnull'n
st  e241x | p#rd ecfoinnset  acbhsalr_*n oanbnsull_ln u_lNloanbnluel ln
a      m| e                     ^#
#Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullableIn file included from  s2/s2shapeutil_contains_brute_force.cc_:N18u:
lIn file included from l../src/s2/s2shapeutil_contains_brute_force.ha:b21l:
eIn file included from 
../src/s2/s2point.h      :| 24                      ^:

In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from :s2/s2shapeutil_conversion.cc168::1836:
:In file included from  ../src/s2/s2shapeutil_conversion.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2point.h:25  :
168In file included from  | ../src/s2/util/coding/coder.hi:n36l:
iIn file included from n../src/s2/base/casts.he: 36u:
iIn file included from n../src/s2/base/logging.ht:3212:
_In file included from t/usr/local/clang/include/absl/log/check.h :L37o:
aIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h3:221(:
c/usr/local/clang/include/absl/log/internal/check_op.ho:n507s:t1 :v owarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
* /usr/local/clang/include/absl/log/internal/check_op.ha:b498s:l35_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
ull   498p | ) In file included from   s2/s2shapeutil_coding.cc{ :
 18       :
|  In file included from                                    ^i../src/s2/s2shapeutil_coding.h
n:t41/usr/local/clang/include/absl/base/nullability.h :
v:1In file included from ,241../src/s2/base/casts.h ::i2234n::
t In file included from  note: /usr/local/clang/include/absl/log/log.hexpanded from macro 'absl_nonnull'v:
2209,  :
 241In file included from c | /usr/local/clang/include/absl/log/internal/log_impl.ho#:nds22te:
f /usr/local/clang/include/absl/log/internal/log_message.hic:nh398ea:r 11a*:b  asbwarning: lstype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l_
_nnoo  nn398nn | uu lll l   e x_vNpooirndtn*eu xlatlb
)s       l| {_                     ^n 
u l l a b l e   c o n s t &   v )\;

            | |                                   ^          ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::25722::23 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nullable'In file included from 
  s2/s2shapeutil_contains_brute_force.cc241  : | 25718# | d:
#eIn file included from df../src/s2/s2shapeutil_contains_brute_force.hien:fe21i :
naIn file included from eb../src/s2/s2point.h s:al24b_:
snIn file included from lo/usr/local/clang/include/absl/hash/hash.h_n:nn89uu:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h :_79N:
o/usr/local/clang/include/absl/base/internal/endian.hn:n172u:l27l:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inlillable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^In file included from 
s2/s2shapeutil_conversion.cc:/usr/local/clang/include/absl/base/nullability.h18::
241In file included from :../src/s2/s2shapeutil_conversion.h22::27 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2point.h
:25  :
241In file included from  | ../src/s2/util/coding/coder.h#:d36e:
fIn file included from i../src/s2/base/casts.hn:e36 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :_21N:
on/usr/local/clang/include/absl/log/internal/check_op.hn:u511l:l13
:       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define aIn file included from bs2/s2shapeutil_coding.ccs:l18_:
nIn file included from u../src/s2/s2shapeutil_coding.hl:l41a:
bIn file included from l../src/s2/base/casts.he: 34_:
NIn file included from u/usr/local/clang/include/absl/log/log.hl:l209a:
bIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.he:
22      :
| /usr/local/clang/include/absl/log/internal/log_message.h                      ^:
436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_conversion.cc:18:
In file included from   ../src/s2/s2shapeutil_conversion.h436: | 27 :
 In file included from L../src/s2/s2point.ho:g25M:
eIn file included from s../src/s2/util/coding/coder.hs:a36g:
eIn file included from D../src/s2/base/casts.he:b36u:
gIn file included from F../src/s2/base/logging.ha:t21a:
lIn file included from (/usr/local/clang/include/absl/log/check.hc:o37n:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h :c21h:
a/usr/local/clang/include/absl/log/internal/check_op.hr:*512 :a17b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u512l | l   f i lceo,n
s      t|                                     ^c
ha/usr/local/clang/include/absl/base/nullability.hr:*241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | b#ldee fsi1n,e  caobnsslt_ ncohnanr* abuslll_ n_uNlolnanbullel 
s      2| ,                     ^

      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25In file included from :
s2/s2shapeutil_coding.ccIn file included from :../src/s2/util/coding/coder.h18::
36In file included from :
../src/s2/s2shapeutil_coding.hIn file included from :../src/s2/base/casts.h41::
36In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/base/logging.h34::
21In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :/usr/local/clang/include/absl/log/check.h209::
37In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h22::
21:
/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/log/internal/check_op.h::446512::4347::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

    446512 |  |     L o gcMoensssta gcehQauri*e talbysDle_bnuuglFlaatballe( cso1n,s tc ocnhsatr *c haabrs*l _anbosnln_unlull lfaibllee, 
s      2| ,                                          ^

      n| /usr/local/clang/include/absl/base/nullability.h                                              ^e: 
241v:/usr/local/clang/include/absl/base/nullability.ho22i::d257  note: S:expanded from macro 'absl_nonnull't23
o:  r 241enote:  | 6expanded from macro 'absl_nullable'#4d
(e  voi257d | *# daebfsiln_en oanbnsull_ln upl,l aubilnet 6_4N_utl lva)b l{e

            | |                           ^                      ^

/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2shapeutil_conversion.cc::2218::
 In file included from ../src/s2/s2shapeutil_conversion.hnote: :expanded from macro 'absl_nonnull'27
:
In file included from ../src/s2/s2point.h:  25241:
 | In file included from #../src/s2/util/coding/coder.hd:e36f:
iIn file included from n../src/s2/base/casts.he: 36a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u513l:l17
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from In file included from ../src/s2/util/coding/coder.hs2/s2shapeutil_contains_brute_force.cc::3618:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2shapeutil_contains_brute_force.h::3621:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2point.h::2124:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/hash/hash.h::3789:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/hash/internal/hash.h::2179:
:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/internal/endian.h520::25013::36 :warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  520 | c  o250n | sitn lcihnaer *u ianbts1l6__ntu lLloaabdl1e6 (Cchoencskts tvrociads*e cambpsfla_lnsoeImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_fnonniunlel  aebxsplr_tneoxntn)u;l
l       | _                ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from In file included from s2/s2shape_nesting_query.cc/usr/local/clang/include/absl/hash/hash.h::1789:
:
In file included from In file included from ../src/s2/s2shape_nesting_query.h/usr/local/clang/include/absl/hash/internal/hash.h::2679:
:
In file included from /usr/local/clang/include/absl/base/internal/endian.h../src/s2/s2shape.h::25425::
27In file included from :../src/s2/s2coder.h :warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67  :
254In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.hi:n29l:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he: 82v:
oIn file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hd: 23S:
tIn file included from o/usr/local/clang/include/absl/crc/crc32c.hr:e321:
6In file included from (/usr/local/clang/include/absl/strings/str_format.hv:o84i:
dIn file included from */usr/local/clang/include/absl/strings/internal/str_format/bind.h :a29b:
sl/usr/local/clang/include/absl/strings/internal/str_format/parser.h_:n227o:n11n:u lwarning: l'enable_if' is a clang extension [-Wgcc-compat] 
p, ui  n227t | 1 6 _ t   v )   { 
       e| n                          ^a
bl/usr/local/clang/include/absl/base/nullability.he:_241i:f22(:s tnote: rexpanded from macro 'absl_nonnull'_
fo  r241m | a#td_eifnitneer naabls:l:_EnnosnunruelClo n_sNtoenxnpurl(lf
o      r| m                     ^a
t),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::In file included from Vs2/s2shapeutil_contains_brute_force.cca:l18i:
dIn file included from F../src/s2/s2shapeutil_contains_brute_force.ho:r21m:
aIn file included from t../src/s2/s2point.hI:m24p:
lIn file included from </usr/local/clang/include/absl/hash/hash.hC:.89.:
.In file included from >/usr/local/clang/include/absl/hash/internal/hash.h(:f79o:
rm/usr/local/clang/include/absl/base/internal/endian.ha:t258):,36
:       | warning:           ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using cIn file included from os2/s2shapeutil_get_reference_point.ccn:s18t:
_In file included from p../src/s2/s2shapeutil_get_reference_point.ho:i21n:
tIn file included from e../src/s2/s2shape.hr: 25=:
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/status/status.hT:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l82a:
bIn file included from i/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:i23t:
yIn file included from _/usr/local/clang/include/absl/crc/crc32c.hu:n32k:
nIn file included from o/usr/local/clang/include/absl/strings/str_format.hw:n83;:

In file included from       /usr/local/clang/include/absl/strings/internal/str_format/arg.h| :                                 ^36
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/numeric/int128.h::28941::
34: /usr/local/clang/include/absl/types/compare.hnote: :expanded from macro 'absl_nullability_unknown'78
:22:   289 | warning: #'enable_if' is a clang extension [-Wgcc-compat]d
efine    a78b | s l _ n u l l_a_baitltirtiyb_uutnek_n_o(w(ne n_aNbullel__iufn(snp e=c=i f0i,e d"
O      n| l                                 ^y
 literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:27:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.ccIn file included from :s2/s2shapeutil_contains_brute_force.cc18::
18In file included from :
../src/s2/s2shapeutil_coding.hIn file included from :../src/s2/s2shapeutil_contains_brute_force.h41::
21In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2point.h36::
24In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/hash/hash.h21::
89In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/hash/internal/hash.h37::
89In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/numeric/int128.h21::
41:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/types/compare.h226::7859::22 : warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]'enable_if' is a clang extension [-Wgcc-compat]

  226    | 78v | o i d   M a k_e_CahtetcrkiObpuVtael_u_e(S(ternianbgl(es_tidf:(:no s=t=r e0a,m &" Oonsl,y  clointsetr avlo i`d0*`  aibss la_lnluolwleadb.l"e) )p)) ;{
}      
|                                                                 ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:41:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attrIn file included from is2/s2shapeutil_get_reference_point.ccb:u18t:
eIn file included from _../src/s2/s2shapeutil_get_reference_point.h_:(21(:
eIn file included from n../src/s2/s2shape.ha:b25l:
eIn file included from _../src/s2/s2coder.hi:f23(:
VIn file included from a/usr/local/clang/include/absl/status/status.hl:i67d:
FIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hr:m29a:
tIn file included from I/usr/local/clang/include/absl/strings/cord.hm:p82l:
<In file included from A/usr/local/clang/include/absl/crc/internal/crc_cord_state.hr:g23s:
.In file included from ./usr/local/clang/include/absl/crc/crc32c.h.:>32(:
s)/usr/local/clang/include/absl/strings/str_format.h,: 115":b52a:d  warning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
rmat   t115r | a p " ) ) ) 
c      o| n                     ^s
t str_format_internal::ParsedFormatB/usr/local/clang/include/absl/strings/internal/str_format/bind.ha:s162e:*22 :a bwarning: s'enable_if' is a clang extension [-Wgcc-compat]l
_non  n162u | l l   p c ) 
_      _| a                                                   ^t
trib/usr/local/clang/include/absl/base/nullability.hu:t241e:_22_:( (note: eexpanded from macro 'absl_nonnull'n
ab  l241e | _#idfe(fVianlei daFbosrlm_antoInmnpull<lA r_gNso.n.n.u>l(ls
)      ,|                       ^"
bad format trap")))
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_build_polygon_boundaries.cc::24118::
22In file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shape.h:24  :
241In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.h :_26N:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hn:u53l:
l
/usr/local/clang/include/absl/types/source_location.h      :| 113                     ^:
19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE(In file included from )s2/s2shapeutil_coding.cc): 18{:

In file included from       ../src/s2/s2shapeutil_coding.h| :                  ^42
:
In file included from ../src/s2/util/coding/coder.h:40/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/util/coding/varint.h::2244::
 In file included from ../src/s2/util/bits/bits.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from /usr/local/clang/include/absl/numeric/bits.h  :24152 | :
#In file included from d/usr/local/clang/include/absl/base/internal/endian.he:f26i:
n/usr/local/clang/include/absl/base/internal/unaligned_access.he: 57a:b36s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu   l57 | li n_lNionnen uvloli
d       | U                     ^n
alignedStore16(void* absl_nonnull p, uint16_t v)In file included from  s2/s2shapeutil_build_polygon_boundaries.cc{:
18      :
| In file included from                                    ^../src/s2/s2shapeutil_build_polygon_boundaries.h
:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2shape.h241::2422:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_op.he: 41a:
bIn file included from s/usr/local/clang/include/absl/log/internal/strip.hl:_26n:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hn:u53l:
l/usr/local/clang/include/absl/types/source_location.h :_133N:o25n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  133 |   constexpr const char* absl_nonnull file_name() const noIn file included from es2/s2shapeutil_coding.ccx:c18e:
pIn file included from t../src/s2/s2shapeutil_coding.h :{42
:
      In file included from | ../src/s2/util/coding/coder.h                        ^:
40:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/util/coding/varint.h::24144::
22In file included from :../src/s2/util/bits/bits.h :21note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/numeric/bits.h:52  :
241In file included from  | /usr/local/clang/include/absl/base/internal/endian.h#:d26e:
f/usr/local/clang/include/absl/base/internal/unaligned_access.hi:n61e: 36a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u61l | li n_lNionnen uvloli
d       | U                     ^n
alignedStore32(voIn file included from is2/s2shapeutil_build_polygon_boundaries.ccd:*18 :
aIn file included from b../src/s2/s2shapeutil_build_polygon_boundaries.hs:l23_:
nIn file included from o../src/s2/s2shape.hn:n24u:
lIn file included from l../src/s2/base/logging.h :p21,:
 In file included from u/usr/local/clang/include/absl/log/check.hi:n37t:
3In file included from 2/usr/local/clang/include/absl/log/internal/check_impl.h_:t21 :
vIn file included from )/usr/local/clang/include/absl/log/internal/check_op.h :{41
:
      In file included from | /usr/local/clang/include/absl/log/internal/strip.h                                   ^:
26:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::24153::
22/usr/local/clang/include/absl/types/source_location.h:: 142:note: 25expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f142i | n e  caobnsslt_enxopnrn ucloIn file included from lns2/s2shapeutil_get_reference_point.ccs t:_ 18Nc:
hoIn file included from anr../src/s2/s2shapeutil_get_reference_point.h*n:u 21alb:
slIn file included from 
l../src/s2/s2shape.h      _:| n25o                     ^n:

nIn file included from u../src/s2/s2coder.hl:l23 :
fIn file included from u/usr/local/clang/include/absl/status/status.hn:c67t:
iIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:_29n:
aIn file included from m/usr/local/clang/include/absl/strings/cord.he:(82):
 In file included from c/usr/local/clang/include/absl/crc/internal/crc_cord_state.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/crc/crc32c.hn:o32e:
x/usr/local/clang/include/absl/strings/str_format.hc:e860p:t43 :{ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                        ^

In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_coding.cc  ::86024118 | ::
 22In file included from  :../src/s2/s2shapeutil_coding.hf :r42note: i:
expanded from macro 'absl_nonnull'eIn file included from 
n../src/s2/util/coding/coder.hd:   40241v:
 | oIn file included from #i../src/s2/util/coding/varint.hdd:e 44fAi:
bnIn file included from se../src/s2/util/bits/bits.hl :Fa21ob:
rsIn file included from ml/usr/local/clang/include/absl/numeric/bits.ha_:tn52Fo:
lnIn file included from un/usr/local/clang/include/absl/base/internal/endian.hsu:hl26(l:
F /usr/local/clang/include/absl/base/internal/unaligned_access.ho_:rN65omn:na36tu:Sl liwarning: 
ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      k
| *                     ^ 
a   b65s | li_nnloinnneu lvlo isdi nUkn,a
l      i| In file included from g                                          ^s2/s2shapeutil_build_polygon_boundaries.ccn
:e18d:
/usr/local/clang/include/absl/base/nullability.hSIn file included from :t../src/s2/s2shapeutil_build_polygon_boundaries.h241o::r2322e:
:6In file included from  4../src/s2/s2shape.hnote: (:expanded from macro 'absl_nonnull'v24
o:
iIn file included from   d../src/s2/base/logging.h241*:  | 21a#b:
dsIn file included from el/usr/local/clang/include/absl/log/check.hf_:in37no:
enIn file included from  n/usr/local/clang/include/absl/log/internal/check_impl.hau:bl21sl:
l In file included from _p/usr/local/clang/include/absl/log/internal/check_op.hn,:o 41nu:
niIn file included from un/usr/local/clang/include/absl/log/internal/strip.hlt:l626 4:
__In file included from Nt/usr/local/clang/include/absl/log/internal/log_message.ho :nv53n):
u /usr/local/clang/include/absl/types/source_location.hl{:l
150
      :      | 40|                                    ^:                     ^
 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   150note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n In file included from u s2/s2shapeutil_get_reference_point.ccl :l 18  :
_cIn file included from oN../src/s2/s2shapeutil_get_reference_point.hno:ns21nt:
u In file included from clh../src/s2/s2shape.hal:r
*25       :
| aIn file included from                      ^b../src/s2/s2coder.h
s:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :f29i:
lIn file included from e/usr/local/clang/include/absl/strings/cord.h_:n82a:
mIn file included from e/usr/local/clang/include/absl/crc/internal/crc_cord_state.h):
23      :
| In file included from                                        ^/usr/local/clang/include/absl/crc/crc32c.h
:32:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/str_format.h241::86722::60 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 | #  d867e | f i neex palbiscli_tn oFnonrumlalt S_iNnokn(nsutlrl_
f      o| r                     ^m
at_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_build_polygon_boundaries.cc::24118::
22In file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shape.h:24  :
241In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_op.hn:n41u:
lIn file included from l/usr/local/clang/include/absl/log/internal/strip.h :_26N:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_message.hn:u53l:
l/usr/local/clang/include/absl/types/source_location.h
:      165| :                     ^15
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char*In file included from  s2/s2shapeutil_get_reference_point.cca:b18s:
lIn file included from _../src/s2/s2shapeutil_get_reference_point.hn:o21n:
nIn file included from u../src/s2/s2shape.hl:l25 :
fIn file included from i../src/s2/s2coder.hl:e23_:
nIn file included from a/usr/local/clang/include/absl/status/status.hm:e67_:
 In file included from =/usr/local/clang/include/absl/status/internal/status_internal.h :"29":
;In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 82              ^:

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/crc/crc32c.h22::32 :
note: /usr/local/clang/include/absl/strings/str_format.hexpanded from macro 'absl_nonnull':
869:40  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n869e |   a bsstlr__nfoonrnmualtl_ i_nNtoenrnnualll:
:      F| o                     ^r
matSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2shapeutil_conversion.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_conversion.ho:n27n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shapeutil_build_polygon_boundaries.cc115: | 18 :
 In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h : 23 :
cIn file included from o../src/s2/s2shape.hn:s24t:
 In file included from s../src/s2/base/logging.ht:r21_:
fIn file included from o/usr/local/clang/include/absl/log/check.hr:m37a:
tIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hi:n21t:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_op.hn:a41l:
:In file included from :/usr/local/clang/include/absl/log/internal/strip.hP:a26r:
s/usr/local/clang/include/absl/log/internal/log_message.he:d80F:o26r:m awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
ase   *80  | a b sLlo_gnMoensnsualgle (pcco)n
s      t|                                                     ^c
har*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #fdielfei,n ei natb slli_nneo,n
n      u| l                         ^l
 _N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
      note: | expanded from macro 'absl_nonnull'                     ^

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2shapeutil_conversion.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_conversion.ho:n27n:
uIn file included from l../src/s2/s2point.hl: 27_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42In file included from :
s2/s2shapeutil_build_polygon_boundaries.ccIn file included from :../src/s2/util/coding/coder.h18::
40In file included from :
../src/s2/s2shapeutil_build_polygon_boundaries.hIn file included from :../src/s2/util/coding/varint.h23::
44In file included from :
../src/s2/s2shape.hIn file included from In file included from :../src/s2/util/bits/bits.hs2/s2shapeutil_conversion.cc24:::
2118In file included from :
:
../src/s2/base/logging.hIn file included from In file included from :/usr/local/clang/include/absl/numeric/bits.h../src/s2/s2shapeutil_conversion.h21:::
5227In file included from :
:
/usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/internal/endian.hIn file included from ::../src/s2/s2point.h37160::
:27In file included from 36:
/usr/local/clang/include/absl/log/internal/check_impl.h:In file included from : ../src/s2/s2coder.h21:warning: :
23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from :

/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h  41:160:
67 | In file included from :
i/usr/local/clang/include/absl/log/internal/strip.hIn file included from n:l/usr/local/clang/include/absl/status/internal/status_internal.h26i::
n29/usr/local/clang/include/absl/log/internal/log_message.he:
: In file included from 119u/usr/local/clang/include/absl/strings/cord.h:i:41n82:t:
 1In file included from warning: 6type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
t: 23L:
  oIn file included from 119a/usr/local/clang/include/absl/crc/crc32c.h | d :1 632L(o:
cg/usr/local/clang/include/absl/strings/str_format.hoMn:ess164ts :avg8oei:&d  *Twarning:  oatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Sb
isnlk  _An164los | n on( ualiblns ltp:)*: L {ao
gb      Ss| l                                   ^i_
nnokn*n/usr/local/clang/include/absl/base/nullability.hu l:la241 b:sU22ln:_u nsnote: oexpanded from macro 'absl_nonnull'ne
ndu(  )l241 l |  {# sdrieenftkiu)n;re
 n      a | bp                                        ^s_
l;_ /usr/local/clang/include/absl/base/nullability.hn}:o
n241n      :u| 22l       ^:l
  note: _/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull'N:
o241  n:241n22 | u:#ld le
note: fexpanded from macro 'absl_nonnull'      i
| n                     ^  e
241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
nullIn file included from 
s2/s2shapeutil_coding.cc      :| 18                     ^:

In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from In file included from s2/s2shapeutil_build_polygon_boundaries.cc../src/s2/util/bits/bits.h::1821:
:
In file included from In file included from In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h/usr/local/clang/include/absl/numeric/bits.hs2/s2shapeutil_conversion.cc:::235218:
:
:
/usr/local/clang/include/absl/base/internal/endian.hIn file included from In file included from :../src/s2/s2shape.h../src/s2/s2shapeutil_conversion.h164:::242727:
:
:In file included from In file included from  ../src/s2/base/logging.h../src/s2/s2point.hwarning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]2127
:
:
In file included from In file included from   /usr/local/clang/include/absl/log/check.h../src/s2/s2coder.h164:: | 3723i:
n:
In file included from lIn file included from /usr/local/clang/include/absl/log/internal/check_impl.hi/usr/local/clang/include/absl/status/status.h:n:21e67:
 :
In file included from vIn file included from /usr/local/clang/include/absl/log/internal/check_op.ho/usr/local/clang/include/absl/status/internal/status_internal.h:i:41d29:
 :
In file included from SIn file included from /usr/local/clang/include/absl/log/internal/strip.ht/usr/local/clang/include/absl/strings/cord.h:o:26r82:
e:
/usr/local/clang/include/absl/log/internal/log_message.h1In file included from :6/usr/local/clang/include/absl/crc/internal/crc_cord_state.h121(::v2341o:
:iIn file included from  d/usr/local/clang/include/absl/crc/crc32c.hwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: 
32a:
b  /usr/local/clang/include/absl/strings/str_format.hs121l: | _ 165n :oLn8ong:uMl els warning: spatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],g
 eu&  i 165nTt | o 1 S6ii_nntkt *Ov n)l ay{(b
sa      lb| _s                          ^nl
o:n:/usr/local/clang/include/absl/base/nullability.hLn:uo241lg:lS22i :np knote: _*expanded from macro 'absl_nonnull' ;

a        b241| s       ^ | l#
_dn/usr/local/clang/include/absl/base/nullability.heof:ni241nn:uel22 la: bs silnote: n_expanded from macro 'absl_nonnull'kn
)o;n  
n241      u | | l                                        ^#l
 d_/usr/local/clang/include/absl/base/nullability.hNe:of241ni:nnue22l :la 
bnote:       expanded from macro 'absl_nonnull's| 
                     ^l
  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2shapeutil_build_polygon_boundaries.ccN:o18n:
nIn file included from u../src/s2/s2shapeutil_build_polygon_boundaries.hl:l23
:
      In file included from | ../src/s2/s2shape.h                     ^:
24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_conversion.cc  :15818 | :
 In file included from  ../src/s2/s2shapeutil_conversion.hL:o27g:
MIn file included from e../src/s2/s2point.hs:sIn file included from 27as2/s2shapeutil_coding.ccg:
:eIn file included from 18&../src/s2/s2coder.h:
 :In file included from o23../src/s2/s2shapeutil_coding.hp:
:eIn file included from 42r/usr/local/clang/include/absl/status/status.h:
a:In file included from t67../src/s2/util/coding/coder.ho:
:rIn file included from 40</usr/local/clang/include/absl/status/internal/status_internal.h:
<:In file included from (29../src/s2/util/coding/varint.hv:
:oIn file included from 44i/usr/local/clang/include/absl/strings/cord.h:
d:In file included from *82../src/s2/util/bits/bits.h :
:aIn file included from 21b/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
s:In file included from l23/usr/local/clang/include/absl/numeric/bits.h_:
:nIn file included from 52u/usr/local/clang/include/absl/crc/crc32c.h:
l:/usr/local/clang/include/absl/base/internal/endian.hl32:a:
172b/usr/local/clang/include/absl/strings/str_format.h:l:27e380: :  43warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:)
  warning: {  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
172
       | | i                               ^  n
l380i | /usr/local/clang/include/absl/base/nullability.hns:et257 d:v:23:os:it drnote:  expanded from macro 'absl_nullable'iS
ntg  o&257r  | eS#3dt2re(Afpvpieonined d*Fa obarsmbasltl(__snnutodl:nl:nausbltllrei  pn_,gN u*ul ilanabtb3sl2el_
_t      n o| vn                      ^)n
 u{l
l       | d                          ^s
t,/usr/local/clang/include/absl/base/nullability.h
:      241| :                                          ^22
: In file included from /usr/local/clang/include/absl/base/nullability.hnote: s2/s2shapeutil_build_polygon_boundaries.ccexpanded from macro 'absl_nonnull'::
24118  ::
24122In file included from  | :../src/s2/s2shapeutil_build_polygon_boundaries.h# :note: dexpanded from macro 'absl_nonnull'23e
:
fIn file included from   i../src/s2/s2shape.h241n:e | 24 #:
adIn file included from be../src/s2/base/logging.hsf:li21n_:
en In file included from oa/usr/local/clang/include/absl/log/check.hbn:sn37lu:
l_In file included from ln/usr/local/clang/include/absl/log/internal/check_impl.h o:_n21Nn:
ouIn file included from nl/usr/local/clang/include/absl/log/internal/check_op.hnl:u 41l_:
lNIn file included from 
o/usr/local/clang/include/absl/log/internal/strip.h      n:n| 26                     ^u:

/usr/local/clang/include/absl/log/internal/log_message.hl:l161
:      38| :                     ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* In file included from as2/s2shapeutil_coding.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_coding.hu:l42l:
aIn file included from b../src/s2/util/coding/coder.hl:e40 :
 In file included from v../src/s2/util/coding/varint.h): 44{:

In file included from       ../src/s2/util/bits/bits.h| :                                     ^21
:
In file included from /usr/local/clang/include/absl/numeric/bits.h/usr/local/clang/include/absl/base/nullability.h::52257:
:23/usr/local/clang/include/absl/base/internal/endian.h:: 176:note: 36expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #d  e176f | iinnel ianbes lu_innutl6l4a_btl eL o_aNdu6l4l(acbolnes
t       | v                      ^o
id* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/s2shapeutil_conversion.cc#:d18e:
fIn file included from i../src/s2/s2shapeutil_conversion.hn:e27 :
aIn file included from b../src/s2/s2point.hs:l27_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 82                     ^:

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(stdIn file included from :s2/s2shapeutil_build_polygon_boundaries.cc::F18I:
LIn file included from E../src/s2/s2shapeutil_build_polygon_boundaries.hIn file included from *:s2/s2shapeutil_coding.cc 23:a:
18bIn file included from :
s../src/s2/s2shape.hIn file included from l:../src/s2/s2shapeutil_coding.h_24:n:
42oIn file included from :
n../src/s2/base/logging.hIn file included from n:../src/s2/util/coding/coder.hu21:l:
40lIn file included from :
 /usr/local/clang/include/absl/log/check.hIn file included from o:../src/s2/util/coding/varint.hu37:t:
44pIn file included from :
u/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from t:../src/s2/util/bits/bits.h,21: :
c21In file included from o:
/usr/local/clang/include/absl/log/internal/check_op.hnIn file included from :s/usr/local/clang/include/absl/numeric/bits.ht41: :
52FIn file included from :
o/usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/base/internal/endian.hr::m26180a:
:t/usr/local/clang/include/absl/log/internal/log_message.h27S::p179 e:warning: c35type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]<:
A rwarning:   gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]180s
 | .i.  n.179l> | i&  nfeo  rLvmoaotig,d
M e      Ss| ts                       ^oar
gee6/usr/local/clang/include/absl/base/nullability.h&4: (o241vpo:eir22da:*t  oarnote: bexpanded from macro 'absl_nonnull'<s<
l(_wn  coh241nan | r#udl_elft *ipn ,ea  busailnb_tsn6lu4_l_lnta obvln)ne u {vl
)l      ; | _
                          ^N      o
n| n/usr/local/clang/include/absl/base/nullability.hu                                  ^l:
l241
:/usr/local/clang/include/absl/base/nullability.h      22:| :                     ^257 
:note: 23expanded from macro 'absl_nonnull':
 note:   expanded from macro 'absl_nullable'241
 | #  d257e | f#idneef ianbes la_bnsoln_nnuullll a_bNloen n_uNlull
l      a| b                     ^l
e
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | intIn file included from  s2/s2shapeutil_build_polygon_boundaries.ccS:N18P:
rIn file included from i../src/s2/s2shapeutil_build_polygon_boundaries.hn:t23F:
(In file included from c../src/s2/s2shape.hh:a24r:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
oIn file included from u/usr/local/clang/include/absl/log/internal/check_op.ht:p41u:
tIn file included from ,/usr/local/clang/include/absl/log/internal/strip.h :s26t:
d/usr/local/clang/include/absl/log/internal/log_message.h:::190s:i42z:e _warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
size  ,190
 |        |                     ^L
og/usr/local/clang/include/absl/base/nullability.hM:e241s:s22a:g enote: expanded from macro 'absl_nonnull'
  &241  | o#pdeerfaitnoer <a<b(sslt_dn:o:nonsutlrle a_mN&o n(n*ualbls
l      _| n                     ^o
nnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.hIn file included from :s2/s2shapeutil_build_polygon_boundaries.cc27::
18In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h27::
23In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2shape.h23::
24In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/base/logging.h67::
21In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/log/check.h29::
37In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h82::
21In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h23::
41In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h32::
26:
/usr/local/clang/include/absl/strings/str_format.h/usr/local/clang/include/absl/log/internal/log_message.h::503191::2043::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  503   | 191  |   F oLromgaMteRsaswaSgien&k (oTp*e raabtsolr_<n<o(nsntudl:l: iroasw_)b a s/e/&  N(O*LaIbNsTl
_      n| o                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :m22):( snote: texpanded from macro 'absl_nonnull'd
::  i241o | s#_dbeafsien&e  oasb)s)l;_
n      o| n                                          ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:42:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2shapeutil_conversion.ccu:l18l:

In file included from       ../src/s2/s2shapeutil_conversion.h| :                     ^27
:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   frieIn file included from ns2/s2shapeutil_coding.ccd: 18v:
oIn file included from i../src/s2/s2shapeutil_coding.hd: 42A:
bIn file included from s../src/s2/util/coding/coder.hl:F40o:
rIn file included from m../src/s2/util/coding/varint.ha:t44F:
lIn file included from u../src/s2/util/bits/bits.hs:h21(:
FIn file included from o/usr/local/clang/include/absl/numeric/bits.hr:m52a:
t/usr/local/clang/include/absl/base/internal/endian.hS:i270n:k27*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o270n | niunllli nsei nvko,i
d       | S                                          ^t
ore6/usr/local/clang/include/absl/base/nullability.h4:(void241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fpi,n eu ianbts6l4__nto nvn)u l{l
       _| N                          ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2shapeutil_conversion.cc      :| 18                     ^:

In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2shapeutil_build_polygon_boundaries.ccn:u18l:
lIn file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h_:N23o:
nIn file included from n../src/s2/s2shape.hu:l24l:

In file included from       ../src/s2/base/logging.h| :                     ^22
:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialiIn file included from zs2/s2shapeutil_conversion.cce:(18V:
LIn file included from o../src/s2/s2shapeutil_conversion.hg:S27i:
tIn file included from e../src/s2/s2point.h*: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hv:)29;:

/usr/local/clang/include/absl/strings/cord.h      :| 667                                    ^:
44: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   note: 667expanded from macro 'absl_nonnull' | 
    s241t | a#tdiecf iCnoer da bAsdlv_annocnenAunldlR e_aNdo(nCnhualrlI
t      e| r                     ^a
tor* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2shapeutil_build_polygon_boundaries.ccn:u18l:
lIn file included from 
../src/s2/s2shapeutil_build_polygon_boundaries.h      :| 23                     ^:

In file included from ../src/s2/s2shape.h:24:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_conversion.cc:  18157:
 | In file included from V../src/s2/s2shapeutil_conversion.hL:o27g:
SIn file included from i../src/s2/s2point.ht:e27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
S/usr/local/clang/include/absl/strings/cord.he:t674V:M37o:d uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
List  H674e | a d FsotraTteisct Ovnoliy(
      |           ^d
 A/usr/local/clang/include/absl/base/nullability.hd:v257a:n23c:e (note: Cexpanded from macro 'absl_nullable'h
ar  I257t | e#rdaetfoirn*e  aabbssll__nnounlnlualbll ei t_,N uslilzaeb_lte 
n      _| b                      ^y
tes);
      In file included from | s2/s2shapeutil_build_polygon_boundaries.cc                                    ^:
18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2shapeutil_build_polygon_boundaries.h::24123::
22In file included from :../src/s2/s2shape.h :note: 24expanded from macro 'absl_nonnull':

In file included from ../src/s2/base/logging.h  :24122 | :
#In file included from d/usr/local/clang/include/absl/log/log.he:f209i:
nIn file included from e/usr/local/clang/include/absl/log/internal/log_impl.h :a20b:
sIn file included from l/usr/local/clang/include/absl/log/absl_vlog_is_on.h_:n63o:
n/usr/local/clang/include/absl/log/internal/vlog_config.hn:u158l:l15 :_ Nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nu  l158l | 
        |                       ^ 
VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shapeutil_edge_iterator.cc999: | 16 :
 In file included from  ../src/s2/s2shapeutil_edge_iterator.h :v22o:
iIn file included from d../src/s2/s2shape.h :C25o:
pIn file included from y../src/s2/s2coder.hT:o23A:
rIn file included from r/usr/local/clang/include/absl/status/status.ha:y67(:
cIn file included from h/usr/local/clang/include/absl/status/internal/status_internal.ha:r29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s86l:
_n/usr/local/clang/include/absl/strings/cord_analysis.ho:n32n:u47l:l  warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t) c   o32n | ssti;z
e      _| t                           ^ 
Ge/usr/local/clang/include/absl/base/nullability.ht:E241s:t22i:m anote: texpanded from macro 'absl_nonnull'e
dM  e241m | o#rdyeUfsiangee (acbosnls_tn oCnonrudlRle p_*N oanbnsull_ln
o      n| n                     ^u
ll rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2shapeutil_conversion.cc_:n18o:
nIn file included from n../src/s2/s2shapeutil_conversion.hu:l27l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absIn file included from ls2/s2shapeutil_edge_iterator.cc:::16c:
oIn file included from r../src/s2/s2shapeutil_edge_iterator.hd:_22i:
nIn file included from t../src/s2/s2shape.he:r25n:
aIn file included from l../src/s2/s2coder.h:::23C:
oIn file included from r/usr/local/clang/include/absl/status/status.hd:z67I:
nIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.ho:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l86_:
n/usr/local/clang/include/absl/strings/cord_analysis.hu:l50l:a49b:l ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ordz   _50i | nsfioz(e)_ tc oGnesttM o{r
e      P| r                                    ^e
ci/usr/local/clang/include/absl/base/nullability.hs:e257M:e23m:o rnote: yexpanded from macro 'absl_nullable'U
sa  g257e | (#cdoenfsitn eC oarbdsRle_pn*u lalbasbll_en o_nNnuulllla brleep
)      ;| 
                      ^      
|                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2shapeutil_conversion.cce: 18a:
bIn file included from s../src/s2/s2shapeutil_conversion.hl:_27n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     In file included from vs2/s2shapeutil_edge_iterator.cco:i16d:
 In file included from s../src/s2/s2shapeutil_edge_iterator.he:t22_:
cIn file included from o../src/s2/s2shape.hr:d25z:
_In file included from i../src/s2/s2coder.hn:f23o:
(In file included from c/usr/local/clang/include/absl/status/status.ho:r67d:
_In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:t29e:
rIn file included from n/usr/local/clang/include/absl/strings/cord.ha:l86::
:/usr/local/clang/include/absl/strings/cord_analysis.hC:o56r:d56z:I nwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
* ab   s56l | _snioznen_utl lG ectoErsdtzi_miantfeod)F a{i
r      S| h                                                  ^a
re/usr/local/clang/include/absl/base/nullability.hM:e241m:o22r:y Unote: sexpanded from macro 'absl_nonnull'a
ge  (241c | o#ndsetf iCnoer daRbespl*_ naobnsnlu_lnlo n_nNuolnln urlelp
)      ;| 
                     ^      
|                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
380 warnings generated.
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/util/bits/bit-interleave.cc -o s2/util/bits/bit-interleave.o
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: In file included from warning: s2/s2shapeutil_build_polygon_boundaries.cc'enable_if' is a clang extension [-Wgcc-compat]:
18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23  :
143In file included from  | ../src/s2/s2shape.h : 25 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.he:n67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he:_29i:
fIn file included from (/usr/local/clang/include/absl/strings/cord.hs:t77r:
_In file included from f/usr/local/clang/include/absl/base/internal/endian.hIn file included from o:s2/s2shapeutil_conversion.ccr26m::
a18/usr/local/clang/include/absl/base/internal/unaligned_access.ht:
:_In file included from 57i../src/s2/s2shapeutil_conversion.h:n:36t27:e:
 rIn file included from warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.ha
l::27:   E:
57nIn file included from  | si../src/s2/s2coder.hun:rle23iC:
noeIn file included from n s/usr/local/clang/include/absl/status/status.hvt:oe67ix:
dp /usr/local/clang/include/absl/status/internal/status_internal.hrU(:ns149a)l:,i13 g":nc eowarning: dntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Sst
toerxep1  r6 149(tv | rcooanipsd"t*)  ,a
cb      hs| al          ^r_*
 naobnsnlu_lnlo npn,u luli nMta1k6e_Cth evc)k F{a
i      l| S                                   ^t
ri/usr/local/clang/include/absl/base/nullability.hn:g241(:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h22      ::| 149             ^note: :expanded from macro 'absl_nonnull'
22
:   warning: 241/usr/local/clang/include/absl/base/nullability.h'enable_if' is a clang extension [-Wgcc-compat] | :
#241d:e  f22149i: | n  e   note: aexpanded from macro 'absl_nonnull' b
 s l_  __241na | ot#ntdnruielbflui tn_eNe_o _n(an(buelsnlla_
bn      olnen_| ui                     ^lfl
( s_tNro_nfnourlmla
t      _| i                     ^n
ternal::EnsIn file included from us2/s2shapeutil_conversion.ccr:e18C:
oIn file included from n../src/s2/s2shapeutil_conversion.hs:t27e:
xIn file included from p../src/s2/s2point.hr:(27s:
In file included from )In file included from s2/s2shapeutil_build_polygon_boundaries.cc,../src/s2/s2coder.h:
:18      23:
| :
In file included from                      ^In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h
/usr/local/clang/include/absl/status/status.h::2367:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2shape.h::15025::
25In file included from :../src/s2/s2coder.h :warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67:
  In file included from 150/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 In file included from  /usr/local/clang/include/absl/strings/internal/str_format/bind.h/usr/local/clang/include/absl/strings/cord.hc::o15877n::
s22tIn file included from : /usr/local/clang/include/absl/base/internal/endian.h a:warning: b'enable_if' is a clang extension [-Wgcc-compat]26s
l:
:/usr/local/clang/include/absl/base/internal/unaligned_access.h:  S:158t61 | a: t36 u: s  *   a_b_swarning: altype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_t
tnroi   bn61un | tiuen_ll_li(n( ee snvtaaobitludes _U,in fac(olVnisagtl nicedhdaFrSot*r omraabet3sI2lm(_pvnloo<niAndr*ug sla.lb .s.pl>r_(ensfo)in,nx u")lbl;a d
p       ,f|  o                        ^uri
mnat/usr/local/clang/include/absl/base/nullability.ht3: 2t241_rt:a 22pv:"))  ){note: )expanded from macro 'absl_nonnull'


            | |                                    ^                       ^
241
 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuil/usr/local/clang/include/absl/strings/internal/str_format/bind.hnl:e 162 _:aN22ob:sn nluwarning: _'enable_if' is a clang extension [-Wgcc-compat]nl
oln
n  u      162l|  |                      ^l  
 _ N o n n_u_laltIn file included from 
ts2/s2shapeutil_conversion.cc      r:| i                     ^18b
u:
tIn file included from e../src/s2/s2shapeutil_conversion.h_:_27(:
(In file included from e../src/s2/s2point.hn:a27b:
lIn file included from e../src/s2/s2coder.h_:i23f:
(In file included from V/usr/local/clang/include/absl/status/status.ha:l67i:
d/usr/local/clang/include/absl/status/internal/status_internal.hF:o150r:m58a:t Iwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
l<A  r150gIn file included from  | s . s2/s2shapeutil_build_polygon_boundaries.cc. :. 18>c:
(oIn file included from sn../src/s2/s2shapeutil_build_polygon_boundaries.hs):,t23  a:
"bIn file included from sb../src/s2/s2shape.hla::d25 ::
fSIn file included from ot../src/s2/s2coder.hra:mt23au:
tsIn file included from *  /usr/local/clang/include/absl/status/status.hta:rb67as:
lp_In file included from "n/usr/local/clang/include/absl/status/internal/status_internal.h)o:)n29)n:

uIn file included from       l/usr/local/clang/include/absl/strings/cord.h| l:                      ^77s
:
tIn file included from a/usr/local/clang/include/absl/base/internal/endian.ht:u26s:
,/usr/local/clang/include/absl/base/internal/unaligned_access.h :c65o:n36s:t  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*    a65b | siln_lnionnen uvloli dp rUenfailxi)g;n
e      d| S                                                         ^t
or/usr/local/clang/include/absl/base/nullability.he:62414:(22v:o inote: dexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bps,l _unionntn6u4l_lt  _vN)o n{n
u      l| l                                   ^

      |                      ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullableIn file included from  s2/s2shapeutil_conversion.cc_:N18u:
lIn file included from l../src/s2/s2shapeutil_conversion.ha:b27l:
eIn file included from 
../src/s2/s2point.h      :| 27                      ^:

In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nIn file included from os2/s2shapeutil_edge_iterator.ccn:n16u:
lIn file included from l../src/s2/s2shapeutil_edge_iterator.h :P22r:
eIn file included from p../src/s2/s2shape.ha:r25e:
TIn file included from o../src/s2/s2coder.hM:o23d:
iIn file included from f/usr/local/clang/include/absl/status/status.hy:(67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h:                                     ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'549
:40:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n549e |   a bsstla_tniocn nvuolild  _INnocnrneumleln
t      S| y                     ^n
chSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2shapeutil_conversion.cce:f18i:
nIn file included from e../src/s2/s2shapeutil_conversion.h :a27b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 /usr/local/clang/include/absl/status/status.h_:N732o:n29n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  732 |   static coIn file included from ns2/s2shapeutil_edge_iterator.ccs:t16 :
sIn file included from t../src/s2/s2shapeutil_edge_iterator.hd::22::
sIn file included from t../src/s2/s2shape.hr:i25n:
gIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from E/usr/local/clang/include/absl/strings/cord.hm:p94t:
yIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.ht:r31i:
n/usr/local/clang/include/absl/synchronization/mutex.hg:(550):;64
:       | warning:                             ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241  :55022 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u In file included from l s2/s2shapeutil_build_polygon_boundaries.ccl   :_ N18 ob:
nanIn file included from su../src/s2/s2shapeutil_build_polygon_boundaries.hel:_l23i
:
n      In file included from t| ../src/s2/s2shape.he                     ^:r
n25a:
lIn file included from :../src/s2/s2coder.h::P23e:
rIn file included from T/usr/local/clang/include/absl/status/status.hh:r67e:
aIn file included from In file included from ds2/s2shapeutil_conversion.ccS/usr/local/clang/include/absl/status/internal/status_internal.h:y:18n29:
c:
In file included from hIn file included from ../src/s2/s2shapeutil_conversion.h*/usr/local/clang/include/absl/strings/cord.h: :27a77:
b:
In file included from s../src/s2/s2point.hl/usr/local/clang/include/absl/base/internal/endian.h:_:27n160:
o:In file included from n36../src/s2/s2coder.hn::u 23lwarning: :
ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h 
:w733):;29  
:160        | warning: i| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                               ^n

li/usr/local/clang/include/absl/base/nullability.h  n:733e241 |  : u22 i:sn tnote: 1t6expanded from macro 'absl_nonnull'a_
tti  c 241 L | c#oodanesdft1i 6nse(t cdao:nb:sssltt_r niovnnogn*iud *la labb ss_llN__onnnoonnunnnlulull
ll        | Mp                     ^o)
 v{e
d      F| r                                   ^o
mSt/usr/local/clang/include/absl/base/nullability.hr:i241nIn file included from :gs2/s2shapeutil_edge_iterator.cc22(:):16; :

note: In file included from       expanded from macro 'absl_nonnull'../src/s2/s2shapeutil_edge_iterator.h| 
:                            ^22
  :
241/usr/local/clang/include/absl/base/nullability.hIn file included from  | :#../src/s2/s2shape.h241d:e:25f22:
i:In file included from n ../src/s2/s2coder.henote: : expanded from macro 'absl_nonnull'23a
:
b  sIn file included from 241l/usr/local/clang/include/absl/status/status.h | _:#n67odn:
neIn file included from uf/usr/local/clang/include/absl/status/internal/status_internal.hil:nl29e :
 _In file included from aN/usr/local/clang/include/absl/strings/cord.hob:snln94_u:
nlIn file included from ol/usr/local/clang/include/absl/strings/internal/cordz_info.hn
:n      31u| :
l                     ^/usr/local/clang/include/absl/synchronization/mutex.hl
: 551_:N40o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                        ^551
 |   static bool DecrementSynchSem(Mutex*In file included from  s2/s2shapeutil_build_polygon_boundaries.cca:b18s:
lIn file included from _../src/s2/s2shapeutil_build_polygon_boundaries.hn:o23n:
nIn file included from u../src/s2/s2shape.hl:lIn file included from 25 s2/s2shapeutil_conversion.ccm:
:uIn file included from 18,../src/s2/s2coder.h:

:In file included from       23../src/s2/s2shapeutil_conversion.h| :
:                                       ^In file included from 27
/usr/local/clang/include/absl/status/status.h:
:/usr/local/clang/include/absl/base/nullability.hIn file included from 67:../src/s2/s2point.h:
241:In file included from :27/usr/local/clang/include/absl/status/internal/status_internal.h22:
::In file included from 29 ../src/s2/s2coder.h:
note: :In file included from expanded from macro 'absl_nonnull'23/usr/local/clang/include/absl/strings/cord.h
:
:  /usr/local/clang/include/absl/status/status.h77241::
 | 751#/usr/local/clang/include/absl/base/internal/endian.h:d:61e164:f: i27warning: n:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
 warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
  s751l |   _ n164 os | ntinanultilinlc e _ uNvioonnitndpu tSlrtlo_r
te       1| P                     ^o6
i(nvtoeirdT*o In file included from Ras2/s2shapeutil_edge_iterator.cceb:ps16(l:
s_In file included from tna../src/s2/s2shapeutil_edge_iterator.hotn:un22us:
l_In file included from il../src/s2/s2shape.h np:t,25 e:
ruIn file included from ni../src/s2/s2coder.han:lt23:1:
:6In file included from _St/usr/local/clang/include/absl/status/status.ht :av67t):
u In file included from {s/usr/local/clang/include/absl/status/internal/status_internal.hR
:e      29p| :
                          ^*In file included from 
 /usr/local/clang/include/absl/strings/cord.ha:b/usr/local/clang/include/absl/base/nullability.h94s::
l241In file included from _:/usr/local/clang/include/absl/strings/internal/cordz_info.hn22:o:31n :
nnote: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull'u:
l552l  : 24164r | :)# ;dwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e      
f| i                                                            ^n  
e552 /usr/local/clang/include/absl/base/nullability.h | a: b241 s: l22_ : n onote:  expanded from macro 'absl_nonnull'n 
 n  u l241l  |   #_ d Neo f ni nn ue l  la 
b s       l _|                       ^n 
o n n u l l   _bNaosnen_uilnlt
e      r| n                     ^a
l::PerThreadSynch*In file included from  s2/s2shapeutil_conversion.cca:b18s:
lIn file included from _../src/s2/s2shapeutil_conversion.hn:o27n:
nIn file included from u../src/s2/s2point.hl:l27 :
wIn file included from ,../src/s2/s2coder.hIn file included from 
:s2/s2shapeutil_build_polygon_boundaries.cc      23:| :
                                                               ^/usr/local/clang/include/absl/status/status.h18
::
752/usr/local/clang/include/absl/base/nullability.hIn file included from ::../src/s2/s2shapeutil_build_polygon_boundaries.h44241:::23 22:
:warning: In file included from  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2shape.hnote: 
expanded from macro 'absl_nonnull':
25    :
752241In file included from  |  | ../src/s2/s2coder.h # :dse23tfa:
itIn file included from niec/usr/local/clang/include/absl/status/status.h  ac:bos67nl:
s_tIn file included from n /usr/local/clang/include/absl/status/internal/status_internal.hosnt:nau29tl:
ulsIn file included from  __/usr/local/clang/include/absl/strings/cord.hiN:not77nen:
ru/usr/local/clang/include/absl/base/internal/endian.hnla:ll
168:      ::| S36                     ^t:
a twarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
Rep  *168  | aibnslli_nneo In file included from nus2/s2shapeutil_edge_iterator.ccni:nu16lt:
l3In file included from  2../src/s2/s2shapeutil_edge_iterator.hR_:et22 pL:
ToIn file included from oa../src/s2/s2shape.hPd:o325i2:
n(In file included from tceo../src/s2/s2coder.hnr:(s23t
:
       In file included from v| /usr/local/clang/include/absl/status/status.ho                                           ^:i
d67/usr/local/clang/include/absl/base/nullability.h*:
 :In file included from a241/usr/local/clang/include/absl/status/internal/status_internal.hb::s2229l:_:
 nnote: In file included from oexpanded from macro 'absl_nonnull'n/usr/local/clang/include/absl/strings/cord.h
n:  u94241l:
l | In file included from # /usr/local/clang/include/absl/strings/internal/cordz_info.hdp:e)31f :
{/usr/local/clang/include/absl/synchronization/mutex.h
i:      n556e| :                                   ^ 38a
:b s/usr/local/clang/include/absl/base/nullability.hwarning: l:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_241
n:o22n  n:556u  | lnote:  l expanded from macro 'absl_nonnull' v_
oNio  dn241 nL | uo#lcldk
Se      lf| o                     ^iw
nLeo oapb(sSly_nncohnWnauiltlP a_rNaomnsn*u lalb
s      l| _                     ^n
onnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2shapeutil_build_polygon_boundaries.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_build_polygon_boundaries.ho:n23n:
uIn file included from l../src/s2/s2shape.hl: 25_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:77:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | iIn file included from ns2/s2shapeutil_edge_iterator.ccl:i16n:
eIn file included from  ../src/s2/s2shapeutil_edge_iterator.hv:o22i:
dIn file included from  ../src/s2/s2shape.hS:t25o:
rIn file included from e../src/s2/s2coder.h3:223(:
vIn file included from o/usr/local/clang/include/absl/status/status.hi:d67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31p:
,/usr/local/clang/include/absl/synchronization/mutex.h :u558i:n35t:3 2warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 v)   558{ | 
        | b                          ^o
ol /usr/local/clang/include/absl/base/nullability.hL:o241c:k22S:l onote: wexpanded from macro 'absl_nonnull'W
it  h241D | e#addelfiinnee( MaubHsolw_ naobnsnlu_lnlo n_nNuolnln uhlolw
,      
|                            ^| 
                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.ccIn file included from :s2/s2shapeutil_edge_iterator.cc18::
16In file included from :
../src/s2/s2shapeutil_build_polygon_boundaries.hIn file included from :../src/s2/s2shapeutil_edge_iterator.h23::
22In file included from :
../src/s2/s2shape.hIn file included from :../src/s2/s2shape.h25::
25In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2coder.h23::
23In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/status/status.h67::
67In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h29::
29In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/strings/cord.h77::
94/usr/local/clang/include/absl/base/internal/endian.h:
:In file included from 176/usr/local/clang/include/absl/strings/internal/cordz_info.h::3631::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]559
:46:   warning: 176type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
inl  i559n | e   u i n t 6 4 _ t   L o a d 6 4 ( c o n s t   v o i d *c oanbsstl _Cnoonndniutlilo np*)  a{b
s      l| _                                   ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:l22e:  cnote: oexpanded from macro 'absl_nonnull'n
d,  
241       | | #                                             ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n257e: 23a:b snote: lexpanded from macro 'absl_nullable'_
no  n257n | u#ldle f_iNnoen naublsll
_      n| u                     ^l
lable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25In file included from :
s2/s2shapeutil_build_polygon_boundaries.ccIn file included from :../src/s2/s2coder.h18::
23In file included from :
../src/s2/s2shapeutil_build_polygon_boundaries.hIn file included from :/usr/local/clang/include/absl/status/status.h23::
67In file included from :
../src/s2/s2shape.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h25::
29In file included from :
../src/s2/s2coder.hIn file included from :/usr/local/clang/include/absl/strings/cord.h23::
94In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h67::
31In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/synchronization/mutex.h::29562:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:: 77warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/internal/endian.h
:180:27:   562warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 vo  i180d |  iLnolciknSel ovwo(iMdu HSotwo raeb6s4l(_vnooindn*u lalb shlo_wn,o ncnounlslt  pC,o nudiintti6o4n_*t  avb)s l{_
n      u| l                          ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241 :c22o:n dnote: ,expanded from macro 'absl_nonnull'

      |                         ^241
 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LoIn file included from cs2/s2shapeutil_coding.cck:S18l:
oIn file included from w../src/s2/s2shapeutil_coding.h(:M44u:
HIn file included from o../src/s2/s2coder.hw: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hh:o82w:
,In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hc:o23n:
sIn file included from t/usr/local/clang/include/absl/crc/crc32c.h :C32o:
nd/usr/local/clang/include/absl/strings/str_format.hi:t115i:o52n:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  u115l | l a b l e   ccoonnds,t
       s| t                                                         ^r
_f/usr/local/clang/include/absl/base/nullability.ho:r257m:a23t:_ inote: nexpanded from macro 'absl_nullable't
er  n257a | l#:d:ePfairnsee daFbosrlm_antuBlalsaeb*l ea b_sNlu_lnloanbnluel
l       | p                      ^c
)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2shapeutil_edge_iterator.ccb:s16l:
_In file included from n../src/s2/s2shapeutil_edge_iterator.ho:n22n:
uIn file included from l../src/s2/s2shape.hl: 25_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2shapeutil_edge_iterator.cc::8216:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h../src/s2/s2shapeutil_edge_iterator.h::2322:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h../src/s2/s2shape.h::3225:
:
In file included from /usr/local/clang/include/absl/strings/str_format.h../src/s2/s2coder.h::15523::
36In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h155: | 94 :
 In file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hx:p31l:
i/usr/local/clang/include/absl/synchronization/mutex.hc:i576t: 49F:o rwarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tCo  u576n | t C avpotiudr eT(riynRte*m oavbes(lb_ansoen_niunltle rpn)a l:: :pP_e(rpT)h r{e}a
d      S| y                                   ^n
ch*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #sd)e;f
i      n| e                                                ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.hIn file included from :s2/s2shapeutil_edge_iterator.cc44::
16In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2shapeutil_edge_iterator.h23::
22In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2shape.h67::
25In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2coder.h29::
23In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/status.h82::
67In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h23::
29In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :/usr/local/clang/include/absl/strings/cord.h32::
94/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 164/usr/local/clang/include/absl/strings/internal/cordz_info.h::831::
 /usr/local/clang/include/absl/synchronization/mutex.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]578
:45:   warning: 164type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  i  n578t | *   avbosild_ nBolnoncukl(lb aUsneu_siendt(e)r n{a lr:e:tPuerrnT hpr_e;a d}S
y      n| c       ^h
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | s#)d;e
f      i| n                                            ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _NonnullIn file included from 
s2/s2shapeutil_coding.cc      :| 18                     ^:

In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from In file included from s2/s2shapeutil_edge_iterator.cc/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::1623:
:
In file included from In file included from ../src/s2/s2shapeutil_edge_iterator.h/usr/local/clang/include/absl/crc/crc32c.h::2232:
:
In file included from /usr/local/clang/include/absl/strings/str_format.h../src/s2/s2shape.h::16525::
8In file included from :../src/s2/s2coder.h :warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:  67165:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :i29n:
tIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u580l:l34 :p _warning: In file included from ;type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_build_polygon_boundaries.cc

:      18| :
       ^  In file included from 
580../src/s2/s2shapeutil_build_polygon_boundaries.h/usr/local/clang/include/absl/base/nullability.h | :: 23241 :
:bIn file included from 22a../src/s2/s2shape.h:s: e25note: _:
expanded from macro 'absl_nonnull'iIn file included from 
n../src/s2/s2coder.ht  :e24123r | :
#nIn file included from da/usr/local/clang/include/absl/status/status.hel:f:67i::
nPIn file included from ee/usr/local/clang/include/absl/status/internal/status_internal.h r:aT29bh:
srIn file included from le/usr/local/clang/include/absl/strings/cord.h_a:nd77oS:
ny/usr/local/clang/include/absl/base/internal/endian.hnn:uc250hl:l*36  :a_ Nbwarning: ostype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nl
n_un  ul250ll | 
li      na| l                     ^bi
lnee  Wuaiknetu1p6(_
t       | L                                 ^o
ad/usr/local/clang/include/absl/base/nullability.h1:6257(:c23o:n snote: texpanded from macro 'absl_nullable' 
vo  i257d | *# daebfsiln_en oanbnsull_ln upl)l a{b
l      e|                                     ^_
Nu/usr/local/clang/include/absl/base/nullability.hl:l241a:b22:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #definIn file included from es2/s2shapeutil_edge_iterator.cc :a16b:
sIn file included from l../src/s2/s2shapeutil_edge_iterator.h_:n22o:
nIn file included from n../src/s2/s2shape.hu:l25l:
 In file included from _../src/s2/s2coder.hN:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                     ^:
In file included from 29s2/s2shapeutil_coding.cc:
:In file included from 18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2shapeutil_coding.h:
:In file included from 44/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2coder.h:
:/usr/local/clang/include/absl/synchronization/mutex.h23::
581In file included from :/usr/local/clang/include/absl/status/status.h38::67 :
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h581: | 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from  :s2/s2shapeutil_build_polygon_boundaries.cc 23: :
18bIn file included from :
a/usr/local/clang/include/absl/crc/crc32c.hIn file included from s:../src/s2/s2shapeutil_build_polygon_boundaries.he32:_:
23i/usr/local/clang/include/absl/strings/str_format.h:
n:In file included from t380../src/s2/s2shape.he::r4325n::
a In file included from lwarning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
:23P:
e  In file included from r380/usr/local/clang/include/absl/status/status.hT | :sh67tr:
edIn file included from a:/usr/local/clang/include/absl/status/internal/status_internal.hd::Ss29yt:
rnIn file included from ic/usr/local/clang/include/absl/strings/cord.hnh:g*77& :
 a/usr/local/clang/include/absl/base/internal/endian.hSb:ts254rl:A_27pn:op enwarning: nntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ud
Flolr  m 254wa | ti)(ns;lti
dn:      e: | sv                                     ^to
riidn/usr/local/clang/include/absl/base/nullability.h gS:*t241 oa:rb22es1:l6 _(note: nexpanded from macro 'absl_nonnull'vo
oni  ndu241*l |  l#a dbdsesltf_,ni
on      ne| n                                          ^ u
albl/usr/local/clang/include/absl/base/nullability.h s:pl241,_: n22uo:in nnnote: tuexpanded from macro 'absl_nonnull'1l
6l_   t_241 N | v#o)d ne{nf
ui      nl| el                          ^ 

a      b| /usr/local/clang/include/absl/base/nullability.hs                     ^:l
241_:n22:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^sIn file included from 
ls2/s2shapeutil_edge_iterator.cc_:n16o:
nIn file included from n../src/s2/s2shapeutil_edge_iterator.hu:l22l:
 In file included from _../src/s2/s2shape.hN:o25n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);In file included from  s2/s2shapeutil_build_polygon_boundaries.cc :/18/:
 In file included from u../src/s2/s2shapeutil_build_polygon_boundaries.hs:e23d:
 In file included from f../src/s2/s2shape.ho:r25 :
CIn file included from o../src/s2/s2coder.hn:d23V:
aIn file included from r/usr/local/clang/include/absl/status/status.h-:>67M:
uIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.he:x29 :
tIn file included from r/usr/local/clang/include/absl/strings/cord.ha:n77s:
f/usr/local/clang/include/absl/base/internal/endian.he:r258
:      36In file included from | :s2/s2shapeutil_coding.cc                   ^ :
warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
/usr/local/clang/include/absl/base/nullability.h
In file included from :../src/s2/s2shapeutil_coding.h241:  :4425822:
 | :In file included from i ../src/s2/s2coder.hnnote: :expanded from macro 'absl_nonnull'l23
i:
  nIn file included from e241/usr/local/clang/include/absl/status/status.h  | :u#67id:
neIn file included from tf/usr/local/clang/include/absl/status/internal/status_internal.h3i:2n29_e:
 tIn file included from a /usr/local/clang/include/absl/strings/cord.hLb:os82al:
d_In file included from 3n/usr/local/clang/include/absl/crc/internal/crc_cord_state.h2o:n(23cn:
ouIn file included from ln/usr/local/clang/include/absl/crc/crc32c.hsl: t_32N o:
vn/usr/local/clang/include/absl/strings/str_format.hon:iu440dl:*l24
 :a       b| warning: s                     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

_non  n440u | liln tp )F P{r
i      n| t                                   ^In file included from F
(s2/s2shapeutil_edge_iterator.cc/usr/local/clang/include/absl/base/nullability.hs::t16241d:
::In file included from 22:../src/s2/s2shapeutil_edge_iterator.h:F: I22note: Lexpanded from macro 'absl_nonnull':
E
In file included from *   ../src/s2/s2shape.h241a: | b#sd25le_:
fnIn file included from io../src/s2/s2coder.hnnen: u23al:
blsIn file included from  lo/usr/local/clang/include/absl/status/status.h_un:top67nun:
tuIn file included from ,l /usr/local/clang/include/absl/status/internal/status_internal.hlc :o_n29Nso:
tnIn file included from  nF/usr/local/clang/include/absl/strings/cord.huo:lr94lm
a:
      tIn file included from | S                     ^/usr/local/clang/include/absl/strings/internal/cordz_info.hp
e:c31<:
A/usr/local/clang/include/absl/synchronization/mutex.hr:g586s:.43.:. >warning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
for  m586a | t , 
v      o| i                       ^d
 F/usr/local/clang/include/absl/base/nullability.he:rIn file included from 241(s2/s2shapeutil_build_polygon_boundaries.cc:b:22a18:s:
 eIn file included from note: _expanded from macro 'absl_nonnull'../src/s2/s2shapeutil_build_polygon_boundaries.hi
:n23  t:
241eIn file included from  | r../src/s2/s2shape.h#n:da25le::
f:In file included from iP../src/s2/s2coder.hnee: r23aT:
bhIn file included from sr/usr/local/clang/include/absl/status/status.hle:a_67nd:
oSIn file included from ny/usr/local/clang/include/absl/status/internal/status_internal.hnn:uc29lh:
l*In file included from   /usr/local/clang/include/absl/strings/cord.h_a:Nb77os:
nl/usr/local/clang/include/absl/base/internal/endian.h_n:un262lo:nl27
n:      u | lwarning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l


      |                                           ^  
262 | /usr/local/clang/include/absl/base/nullability.hi:n241l:i22n:e  note: vexpanded from macro 'absl_nonnull'o
id   241S | t#odreef3i2n(ev oaibds*l _anbosnln_unlIn file included from ols2/s2shapeutil_coding.ccn :n_18Nu:
loIn file included from ln../src/s2/s2shapeutil_coding.h n:pu44,l:
 lIn file included from u
../src/s2/s2coder.hi      :n| 23t                     ^:
3
In file included from 2/usr/local/clang/include/absl/status/status.h_:t67 :
vIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h :{29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                          ^:
82:
In file included from In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.hs2/s2shapeutil_edge_iterator.cc:::2412316::
:
22In file included from In file included from :/usr/local/clang/include/absl/crc/crc32c.h../src/s2/s2shapeutil_edge_iterator.h ::note: 3222expanded from macro 'absl_nonnull':
:

/usr/local/clang/include/absl/strings/str_format.hIn file included from   :../src/s2/s2shape.h241469: | :#2520d:
:eIn file included from  f../src/s2/s2coder.hwarning: i:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n23
e:
 In file included from a  b/usr/local/clang/include/absl/status/status.h469s: | li67_n:
ntoIn file included from  n/usr/local/clang/include/absl/status/internal/status_internal.hSnN:uPl29rl:
i nIn file included from _t/usr/local/clang/include/absl/strings/cord.hNF:o(n94cn:
huaIn file included from lr/usr/local/clang/include/absl/strings/internal/cordz_info.hl*
:       31a| b:
                     ^s/usr/local/clang/include/absl/synchronization/mutex.h
l:_590n:o40n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
 ou  t590p | u t ,e xsptldi:c:isti zMeu_tte xs(iczoIn file included from ens2/s2shapeutil_build_polygon_boundaries.cc,s:
t18       :
| vIn file included from                    ^o../src/s2/s2shapeutil_build_polygon_boundaries.h
l:a23/usr/local/clang/include/absl/base/nullability.ht:
:iIn file included from 241l../src/s2/s2shape.h:e:22 25:M:
 unote: In file included from expanded from macro 'absl_nonnull't../src/s2/s2coder.h
e:  x23241*:
 |  In file included from #a/usr/local/clang/include/absl/status/status.hdb:se67fl:
_iIn file included from nn/usr/local/clang/include/absl/status/internal/status_internal.heu: l29al:
baIn file included from sb/usr/local/clang/include/absl/strings/cord.hll:_e77 n:
o//usr/local/clang/include/absl/base/internal/endian.hn*:in266ug:nl36lo: r _ewarning: Ndtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o*
n/n)u  l 266l{ | 
i}      n
| l                     ^      i
| n                                       ^e
 u/usr/local/clang/include/absl/base/nullability.hi:n257t:6234:_ tnote:  expanded from macro 'absl_nullable'L
oa  d2576 | 4#(dceofnisnte  vaobisdl*_ naublslla_bnloen n_uNlull lpa)b l{e

            | |                                    ^                      ^

/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2shapeutil_coding.cc::2218::
 In file included from ../src/s2/s2shapeutil_coding.hnote: :expanded from macro 'absl_nonnull'44
:
In file included from ../src/s2/s2coder.h  :24123 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n82o:
nIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hu:l23l:
 In file included from _/usr/local/clang/include/absl/crc/crc32c.hN:o32n:
n/usr/local/clang/include/absl/strings/str_format.hu:l503l:
20      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NIn file included from Os2/s2shapeutil_build_polygon_boundaries.ccL:I18N:
TIn file included from 
../src/s2/s2shapeutil_build_polygon_boundaries.h      :| 23                   ^:

In file included from ../src/s2/s2shape.h:/usr/local/clang/include/absl/base/nullability.h25::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i77n:
e/usr/local/clang/include/absl/base/internal/endian.h :a270b:s27l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l270  | _iNnolninnuel lv
o      i| d                     ^ 
Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_edge_iterator.cc:16:
In file included from   ../src/s2/s2shapeutil_edge_iterator.h860: | 22 :
 In file included from f../src/s2/s2shape.hr:i25e:
nIn file included from d../src/s2/s2coder.h :v23o:
iIn file included from d/usr/local/clang/include/absl/status/status.h :A67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hF:o29r:
mIn file included from a/usr/local/clang/include/absl/strings/cord.ht:F94l:
uIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hh:(31F:
o/usr/local/clang/include/absl/synchronization/mutex.hr:m670a:t74S:i nwarning: k'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*
 absl  _670n | o n neuxlpll isciintk ,R
e      a| d                                          ^e
rMu/usr/local/clang/include/absl/base/nullability.ht:e241x:L22o:c knote: (expanded from macro 'absl_nonnull'M
ut  e241x | &# dmeuf iAnBeS La_bIsNlT_EnRoNnAnLu_lAlT T_RNIoBnUnTuEl_lC
A      P| T                     ^U
RED_BY(this))
      |                                                                          ^~~~
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::67823::
35In file included from :/usr/local/clang/include/absl/crc/crc32c.h :warning: 32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/str_format.h:867:60  :678  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
expl  i867c | i t  eRxepaldiecriMtu tFeoxrLmoactkS(iMnukt(esxt*r _afbosrlm_anto_ninnutlelr nmaul): :AFBoSrLm_aStHSAiRnEkDI_mLpOlC*K _aFbUsNlC_TnIoOnNn(umlul) 
s      )| 
                                  ^      
|                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/base/nullability.h::22241:: 22note: :expanded from macro 'absl_nonnull' 
note:   expanded from macro 'absl_nonnull'241
 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from In file included from ../src/s2/s2coder.hs2/s2shapeutil_edge_iterator.cc::2316:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2shapeutil_edge_iterator.h::6722:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2shape.h::2925:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/s2coder.h::8223:
:
In file included from In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h/usr/local/clang/include/absl/status/status.h::2367:
:
In file included from In file included from /usr/local/clang/include/absl/crc/crc32c.h/usr/local/clang/include/absl/status/internal/status_internal.h::3229:
:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :/usr/local/clang/include/absl/strings/cord.h869::9440:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
/usr/local/clang/include/absl/synchronization/mutex.h:681  :86974 | :   warning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
r_for  m681a | t _ ienxtpelrincailt: :RFeoardmeartMSuitnekxILmopclk*( Maubtselx_&n omnun uAlBlS Ls_iInNkT_E;R
N      A| L                                       ^_
AT/usr/local/clang/include/absl/base/nullability.hT:R241I:B22U:T Enote: _expanded from macro 'absl_nonnull'C
AP  T241U | R#EdDe_fBiYn(et haibss)l,_
n      o| n                                                                         ^~~~n
ull _Nonnull
      |                      ^
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/synchronization/mutex.h :1031718 | :i35n:l iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 co  n718s | t   setxaptluisc_iitn tWerrintaelr:M:uStteaxtLuoscRke(pM*u taebxs*l _anbosnln_unloln nSutlalt umsu:):
R      e| p                                  ^T
oP/usr/local/clang/include/absl/base/nullability.ho:i241n:t22e:r (note: 
expanded from macro 'absl_nonnull'      
|                                          ^  
241 | #d/usr/local/clang/include/absl/base/nullability.he:241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2shapeutil_conversion.cc  :72218 | :
 In file included from  ../src/s2/s2shapeutil_conversion.he:x27p:
lIn file included from i../src/s2/s2point.hc:i27t:
 In file included from W../src/s2/s2coder.hr:i23t:
e/usr/local/clang/include/absl/status/status.hr:M1038u:t33e:x Lwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
k(Mu t1038e | x &   m us tAaBtSuLs__IiNnTtEeRrNnAaLl_:A:TSTtRaItBuUsTREe_pC*A PaTbUsRlE_Dn_oBnYn(utlhli sr)e,p
)       | {                                                                         ^~~~

      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull/usr/local/clang/include/absl/synchronization/mutex.h :_731N:o35n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:27:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from In file included from /usr/local/clang/include/absl/strings/str_format.hs2/s2shapeutil_edge_iterator.cc::8316:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/str_format/arg.h../src/s2/s2shapeutil_edge_iterator.h::3622:
:
In file included from In file included from /usr/local/clang/include/absl/numeric/int128.h../src/s2/s2shape.h::4125:
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/types/compare.h::2378:
:In file included from 22/usr/local/clang/include/absl/status/status.h:: 67warning: :
'enable_if' is a clang extension [-Wgcc-compat]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:   10978: | 53 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 __att  r109i | bvuotied_ _C(o(peynCaobrldeT_oiSft(rni n=g=( c0o,n s"tO nCloyr dl&i tserrca,l  s`t0d`: :isst railnlgo*w eadb.s"l)_)n)o n{n}u
l      l|                       ^d
st);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     expliIn file included from cs2/s2shape_nesting_query.cci:t17 :
CIn file included from h../src/s2/s2shape_nesting_query.ha:r26R:
aIn file included from n../src/s2/s2shape.hg:e25(:
cIn file included from o../src/s2/s2coder.hn:s23t:
 In file included from C/usr/local/clang/include/absl/status/status.ho:r67d:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o86n:
nu/usr/local/clang/include/absl/strings/cord_analysis.hl:l32 :c47o:r dwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
: cor   d32_ | (sciozred_)t  {G}e
t      E| s                                   ^t
im/usr/local/clang/include/absl/base/nullability.ha:t241e:d22M:e mnote: oexpanded from macro 'absl_nonnull'r
yU  s241a | g#ed(ecfoinnset  aCbosrld_Rneopn*n ualbls l__Nnoonnnnuullll
       r| e                     ^p
);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2shapeutil_edge_iterator.ccs:l16_:
nIn file included from o../src/s2/s2shapeutil_edge_iterator.hn:n22u:
lIn file included from l../src/s2/s2shape.h :_25N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const CIn file included from os2/s2shape_nesting_query.ccr:d17*:
 In file included from a../src/s2/s2shape_nesting_query.hb:s26l:
_In file included from n../src/s2/s2shape.ho:n25n:
uIn file included from l../src/s2/s2coder.hl: 23c:
oIn file included from r/usr/local/clang/include/absl/status/status.hd:_67;:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::86241:
:22/usr/local/clang/include/absl/strings/cord_analysis.h:: 50:note: 49expanded from macro 'absl_nonnull':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de   f50i | nsei zaeb_stl _GneotnMnourlelP r_eNcoinsneuMlelm
o      r| y                     ^U
sage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shape_nesting_query.ccs2/s2shapeutil_edge_iterator.cc::1716:
:
In file included from In file included from ../src/s2/s2shape_nesting_query.h../src/s2/s2shapeutil_edge_iterator.h::2622:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s2shape.h::2525:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2coder.h::2323:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/status.h::6767:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/status/internal/status_internal.h::2929:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::86795:
:43/usr/local/clang/include/absl/strings/cord_analysis.h:: 56:warning: 56:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |      56f | rsiiezned_ tv oGiedt EAsbtsilmFaotremdaFtaFilruSshha(raebMselm:o:rCyoUrsda*g ea(bcsoln_snto nCnourldlR ecpo*r da,b
s      l| _                                          ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :r enote: pexpanded from macro 'absl_nonnull')
;
        241|  |                                                        ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/util/coding/coder.cc -o s2/util/coding/coder.o
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
693 warnings generated.
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clon/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/util/coding/varint.cc -o s2/util/coding/varint.o
e(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INIn file included from Ts2/s2shapeutil_edge_iterator.ccE:R16N:
AIn file included from L../src/s2/s2shapeutil_edge_iterator.h_:A22T:
TIn file included from R../src/s2/s2shape.hI:B25U:
TIn file included from E../src/s2/s2coder.h_:C23A:
PT/usr/local/clang/include/absl/status/status.hU:R725E:D38_:B Ywarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
his)  ,725
 |        |                                                                           ^~~~s
tatic status_internal::StatusRep*/usr/local/clang/include/absl/synchronization/mutex.h :a689b:s35l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   689P | r e peaxrpelTiocMiotd iRfeya(d
e      r| M                                     ^u
tex/usr/local/clang/include/absl/base/nullability.hL:o241c:k22(:M unote: texpanded from macro 'absl_nonnull'e
x*   241a | b#sdle_fnionnen ualbls lm_un,o ncnounlslt  _CNoonndniutlilo
n      &|                       ^c
ond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2shapeutil_edge_iterator.ccn:u16l:
lIn file included from 
../src/s2/s2shapeutil_edge_iterator.h      :| 22                     ^:

In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2shape_nesting_query.ccu:l17l:
 In file included from _../src/s2/s2shape_nesting_query.hN:o26n:
nIn file included from u../src/s2/s2shape.hl:l25
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(MIn file included from us2/s2shapeutil_edge_iterator.cct:e16x:
&In file included from  ../src/s2/s2shapeutil_edge_iterator.hm:u22 :
AIn file included from B../src/s2/s2shape.hS:L25_:
IIn file included from N../src/s2/s2coder.hT:E23R:
N/usr/local/clang/include/absl/status/status.hA:L751_:A61T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE_  C751A | P T UsRtEaDt_iBcY (utihnitsp)t)r
_      t|                                                                           ^~~~P
ointerToRep(status_internal::Stat/usr/local/clang/include/absl/synchronization/mutex.hu:s718R:e35p:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n718o | n n uelxlp lri)c;i
t       | W                                                            ^r
it/usr/local/clang/include/absl/base/nullability.he:r241M:u22t:e xnote: Lexpanded from macro 'absl_nonnull'o
ck  (241M | u#tdeexf*i naeb salb_snlo_nnnounlnlu lmlu )_
N      o| n                                  ^n
ull/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2shapeutil_edge_iterator.ccl:_16n:
oIn file included from n../src/s2/s2shapeutil_edge_iterator.hn:u22l:
lIn file included from  ../src/s2/s2shape.h_:N25o:
nIn file included from n../src/s2/s2coder.hu:l23l:

/usr/local/clang/include/absl/status/status.h      :| 752                     ^:
44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_intIn file included from es2/s2shape_nesting_query.ccr:n17a:
lIn file included from :../src/s2/s2shape_nesting_query.h::S26t:
aIn file included from t../src/s2/s2shape.hu:s25R:
eIn file included from p../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hR:e94p:
TIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hP:o31i:
n/usr/local/clang/include/absl/synchronization/mutex.ht:e722r:(74
:       | warning:                                            ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/base/nullability.h:241:22  :722  | note:  expanded from macro 'absl_nonnull' 
ex  p241l | i#cdietf iWnrei taebrsMlu_tneoxnLnouclkl( M_uNtoenx& mnu ABSL_INTERuNlAlL
_      A| T                     ^T
RIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2shape_nesting_query.cc:
:17/usr/local/clang/include/absl/status/status.h:
:In file included from 1031../src/s2/s2shape_nesting_query.h::4226::
 In file included from ../src/s2/s2shape.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/s2coder.h:23:
In file included from  /usr/local/clang/include/absl/status/status.h1031: | 67i:
nIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:n94s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hs:t31a:
t/usr/local/clang/include/absl/synchronization/mutex.hu:s1132_:i10n:t ewarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
al: :1132S | t a tMuustReexp**  aabbssll__nnuolnlnaubllle  Sctoantsuts :m:uR_e;p
T      o| P         ^o
in/usr/local/clang/include/absl/base/nullability.ht:e257r:(23
:       | note:                                          ^expanded from macro 'absl_nullable'

  257/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea b_sNlu_lnloanbnluel
l       | _                      ^N
onnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2shapeutil_edge_iterator.cce: 16a:
bIn file included from s../src/s2/s2shapeutil_edge_iterator.hl:_22n:
oIn file included from n../src/s2/s2shape.hn:u25l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
n/usr/local/clang/include/absl/status/status.hn:u1063l:l13
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1063 | const char* absl_nonnull StatusMesIn file included from ss2/s2shape_nesting_query.cca:g17e:
AIn file included from s../src/s2/s2shape_nesting_query.hC:S26t:
rIn file included from (../src/s2/s2shape.h
:      25| :
            ^In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e1158 :a53b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
onnu l1158l |   _ N o n n uMlult
e      x| &                     ^ 
mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: In file included from 'enable_if' is a clang extension [-Wgcc-compat]s2/s2shape_nesting_query.cc
:17:
In file included from ../src/s2/s2shape_nesting_query.h:26  :
227In file included from  | ../src/s2/s2shape.h : 25 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.he:n67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he:_29i:
fIn file included from (/usr/local/clang/include/absl/strings/cord.hs:t94r:
_In file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.ho:r31m:
a/usr/local/clang/include/absl/synchronization/mutex.ht:_1259i:n14t:e rwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l:: E1259n | s u r e Ccoonnsstte xTp*r (afbosrlm_anto)n,n
u      l| l          ^ 
object,/usr/local/clang/include/absl/strings/internal/str_format/parser.h
:      229| :             ^11
: /usr/local/clang/include/absl/base/nullability.hwarning: :'enable_if' is a clang extension [-Wgcc-compat]241
:22:   note: 229expanded from macro 'absl_nonnull' | 
     241  |  # d e f i neen aabblsel__info(nsnturl_lf o_rNmoantn_uilnlt
e      r| n                     ^a
l::ValidFormatImpl<C...>(fIn file included from os2/s2shape_nesting_query.ccr:m17a:
tIn file included from )../src/s2/s2shape_nesting_query.h,:
26      :
| In file included from           ^../src/s2/s2shape.h
:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: In file included from warning: s2/s2text_format.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
16:
In file included from ../src/s2/s2text_format.h :126031 | :
  /usr/local/clang/include/absl/strings/string_view.h : 53b:o54o:l  warning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl::typ   e53_ | icdoennsttietxyp<rT >s:t:rtiynpge_:v:i*e wa bNsull_lnSoanfneuSltlr imnegtVhioedw)((c)o
n      s| t                                          ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef ipn)e  {a
b      s| l                                                     ^_
nonnul/usr/local/clang/include/absl/base/nullability.hl: 257_:N23o:n nnote: uexpanded from macro 'absl_nullable'l
l
        | 257                     ^ | 
#define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from In file included from s2/s2shape_nesting_query.cc../src/s2/s2shapeutil_build_polygon_boundaries.h::1723:
:
In file included from In file included from ../src/s2/s2shape_nesting_query.h../src/s2/s2shape.h::2625:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s2coder.h::2523:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/status/status.h::2367:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/internal/status_internal.h::6729:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/strings/cord.h::2982:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::9423:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/crc/crc32c.h::3132:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/strings/str_format.h1294::8462:
: /usr/local/clang/include/absl/strings/internal/str_format/bind.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]143
:11:  warning: 1294'enable_if' is a clang extension [-Wgcc-compat] | 
       143  |                      e n a b l e _ i f ( s t r _ f o r m a t _ i n t e r n a l : : E ncsounrsetC ovnositde*x parb(ssl)_,n o"ncnounlslt eoxbpjr, 
t      r| a                                                             ^p
")/usr/local/clang/include/absl/base/nullability.h,:
241      :| 22          ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |  In file included from  s2/s2shape_nesting_query.cc : 17 :
 In file included from _../src/s2/s2shape_nesting_query.h_:a26t:
tIn file included from r../src/s2/s2shape.hi:b25u:
tIn file included from e../src/s2/s2coder.h_:_23(:
(In file included from e/usr/local/clang/include/absl/status/status.hn:a67b:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h_:i29f:
(In file included from s/usr/local/clang/include/absl/strings/cord.ht:r94_:
fIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hr:m31a:
t/usr/local/clang/include/absl/synchronization/mutex.h_:i1309n:t35e:r nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::E n1309s | uvroeiCdo nRsetgeixsptre(rsC)o,n
d      V| a                     ^r
Tracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/strings/internal/str_format/bind.h::22158:: 22note: :expanded from macro 'absl_nonnull' 
warning:   'enable_if' is a clang extension [-Wgcc-compat]241
 | #de  f158i | n e   a b s l___naotntnruilblu t_Neo_n_n(u(leln
a      b| l                     ^e
_if(VIn file included from as2/s2shape_nesting_query.ccl:i17d:
FIn file included from o../src/s2/s2shape_nesting_query.hr:m26a:
tIn file included from I../src/s2/s2shape.hm:p25l:
<In file included from A../src/s2/s2coder.hr:g23s:
.In file included from ./usr/local/clang/include/absl/status/status.h.:>67(:
sIn file included from )/usr/local/clang/include/absl/status/internal/status_internal.h,: 29":
bIn file included from a/usr/local/clang/include/absl/strings/cord.hd: 94f:
oIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hm:a31t:
 /usr/local/clang/include/absl/synchronization/mutex.ht:r1310a:p17":) )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^ 
1310 |     const char* absl_nonnull m/usr/local/clang/include/absl/strings/internal/str_format/bind.hs:g162,: 22c:o nwarning: s'enable_if' is a clang extension [-Wgcc-compat]t
 voi  d162* |   a b s l _ n_o_nantutlrli bcuvt)e)_;_
(      (| e                ^n
ab/usr/local/clang/include/absl/base/nullability.hl:e241_:i22f:( Vnote: aexpanded from macro 'absl_nonnull'l
id  F241o | r#mdaetfIimnpel <aAbrsgls_.n.o.n>n(usl)l,  _"Nboandn uflolr
m      a| t                     ^ 
trap"))In file included from )s2/s2shape_nesting_query.cc
:      17| :
                     ^In file included from 
../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shape_nesting_query.cc::24117::
22In file included from :../src/s2/s2shape_nesting_query.h :note: 26expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2shape.h  :24125 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
nn/usr/local/clang/include/absl/strings/cord.hu:l425l: 62_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
        | 425                     ^ | 
  friend void CopyCordToString(coIn file included from ns2/s2shapeutil_build_polygon_boundaries.ccs:t18 :
CIn file included from o../src/s2/s2shapeutil_build_polygon_boundaries.hr:d23&:
 In file included from s../src/s2/s2shape.hr:c25,:
 In file included from s../src/s2/s2coder.ht:d23::
:In file included from s/usr/local/clang/include/absl/status/status.ht:r67i:
nIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_82n:
oIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/crc/crc32c.hd:s32t:
)/usr/local/clang/include/absl/strings/str_format.h;:
164      :| 8                                                             ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   164note:  | expanded from macro 'absl_nonnull' 
 i  n241t | *# daebfsiln_en oanbnsull_ln oUnnnuusleld (_)N o{n nrueltlu
r      n|                       ^p
_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2shape_nesting_query.ccb:s17l:
_In file included from n../src/s2/s2shape_nesting_query.ho:n26n:
uIn file included from l../src/s2/s2shape.hl: 25_:
NIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437In file included from  | s2/s2shapeutil_build_polygon_boundaries.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h : 23 :
 In file included from  ../src/s2/s2shape.h : 25 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
sIn file included from t/usr/local/clang/include/absl/crc/internal/crc_cord_state.hd::23::
sIn file included from t/usr/local/clang/include/absl/crc/crc32c.hr:i32n:
g/usr/local/clang/include/absl/strings/str_format.h*: 165a:b8s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nn  u165l | l   disntt)*; 
a      b| s                                              ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: pexpanded from macro 'absl_nonnull'_
;
        241|  |        ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2shapeutil_build_polygon_boundaries.ccl: 18_:
NIn file included from o../src/s2/s2shapeutil_build_polygon_boundaries.hn:n23u:
lIn file included from l../src/s2/s2shape.h
:      25| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2shape_nesting_query.cce:f17i:
nIn file included from e../src/s2/s2shape_nesting_query.h :a26b:
sIn file included from l../src/s2/s2shape.h_:n25o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      | /usr/local/clang/include/absl/strings/cord.h                     ^:
501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2shapeutil_build_polygon_boundaries.cc::2918:
:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h504::2340:
:In file included from  ../src/s2/s2shape.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]25
:
In file included from ../src/s2/s2coder.h:  23504:
 | In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
eIn file included from x/usr/local/clang/include/absl/status/internal/status_internal.hp:29l:
iIn file included from c/usr/local/clang/include/absl/strings/cord.hi:t82 :
CIn file included from h/usr/local/clang/include/absl/crc/internal/crc_cord_state.hu:n23k:
IIn file included from t/usr/local/clang/include/absl/crc/crc32c.he:r32a:
t/usr/local/clang/include/absl/strings/str_format.ho:r440(:c24o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
Cord  *440  | aibnstl _FnPorninnutlFl( sctodr:d:)F;I
L      E| *                                       ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   o241u | t#pduetf,i nceo nasbts lF_onromnantuSlple c_<NAorngnsu.l.l.
>      &|                       ^f
ormat,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2shape_nesting_query.cce:f17i:
nIn file included from e../src/s2/s2shape_nesting_query.h :a26b:
sIn file included from l../src/s2/s2shape.h_:n25o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      /usr/local/clang/include/absl/strings/cord.h| :                     ^507
:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnIn file included from us2/s2shapeutil_build_polygon_boundaries.ccl:l18 :
tIn file included from r../src/s2/s2shapeutil_build_polygon_boundaries.he:e23):
;In file included from 
../src/s2/s2shape.h      :| 25                                          ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/status/status.h22::67 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  In file included from 241/usr/local/clang/include/absl/strings/cord.h | :#82d:
eIn file included from f/usr/local/clang/include/absl/crc/internal/crc_cord_state.hi:n23e:
 In file included from a/usr/local/clang/include/absl/crc/crc32c.hb:s32l:
_/usr/local/clang/include/absl/strings/str_format.hn:o469n:n20u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non  n469u | liln
t       | S                     ^N
PrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2shape_nesting_query.cce:f17i:
nIn file included from e../src/s2/s2shape_nesting_query.h :a26b:
sIn file included from l../src/s2/s2shape.h_:n25o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      /usr/local/clang/include/absl/strings/cord.h| :                     ^525
:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2shapeutil_build_polygon_boundaries.cc
:18  :
257In file included from  | ../src/s2/s2shapeutil_build_polygon_boundaries.h#:d23e:
fIn file included from i../src/s2/s2shape.hn:e25 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67a:
bIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.he: 29_:
NIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l82a:
bIn file included from l/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:
23      :
| In file included from                       ^/usr/local/clang/include/absl/crc/crc32c.h
:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shapeutil_build_polygon_boundaries.ccs2/s2shape_nesting_query.cc::1817:
:
In file included from In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h../src/s2/s2shape_nesting_query.h::2326:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s2shape.h::2525:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/s2coder.h::2323:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/status/status.h::6767:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/status/internal/status_internal.h::2929:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::73682::
17In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/crc/crc32c.h:32  :
736 | /usr/local/clang/include/absl/strings/str_format.h : 860 : 43c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
 Cor  d860* |   a bfsrli_ennodn nvuolild  cAobrsdl_F;o
r      m| a                ^t
Fl/usr/local/clang/include/absl/base/nullability.hu:s241h:(22F:o rnote: mexpanded from macro 'absl_nonnull'a
tS  i241n | k#*d eafbisnle_ naobnsnlu_lnlo nsniunlkl, 
_      N| o                                          ^n
nul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shape_nesting_query.cc867: | 17 :
 In file included from e../src/s2/s2shape_nesting_query.hx:p26l:
iIn file included from c../src/s2/s2shape.hi:t25 :
FIn file included from o../src/s2/s2coder.hr:m23a:
tIn file included from S/usr/local/clang/include/absl/status/status.hi:n67k:
(In file included from s/usr/local/clang/include/absl/status/internal/status_internal.ht:r29_:
f/usr/local/clang/include/absl/strings/cord.ho:r795m:a43t:_ iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
erna  l795: | : F ofrrmiaetnSdi nvkoIimdp lA*b salbFsolr_mnaotnFnluulslh (sa)b
s      l| :                                                           ^:
Co/usr/local/clang/include/absl/base/nullability.hr:d241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fcionred ,a
b      s| l                                          ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      In file included from | s2/s2shapeutil_build_polygon_boundaries.cc                     ^:
18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRep* absl_nullable old_rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:143:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  143 |                   false, false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                           ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_In file included from ss2/s2shapeutil_edge_iterator.cca:t16i:
sIn file included from f../src/s2/s2shapeutil_edge_iterator.hi:e22d:
,In file included from  ../src/s2/s2shape.h.:.27.:
)In file included from  ../src/s2/s2pointutil.hi:f27_:
sa../src/s2/util/math/matrix3x3.ht:i276s:f5i:e dwarning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|         ^
  276 |     S2_CHECK_NEIn file included from (s2/s2shapeutil_conversion.ccd:e18t:
,In file included from  ../src/s2/s2shapeutil_conversion.hV:T28y:
pIn file included from e../src/s2/s2polygon.h(:029):
)In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h<:<45 :
"/usr/local/clang/include/absl/container/internal/raw_hash_map.h :C146a:n3':t  warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
verse.   146D | e t eArBmSiLn_aInNtT E=R N0A.L"_;X
(      i| n    ^s
ert_../src/s2/base/logging.ho:r37_:a21s:s inote: gexpanded from macro 'S2_CHECK_NE'n
,    i37n | s#edretf_ionre_ aSs2s_iCgHnE_CiKm_pNlE,  CcHoEnCsKt_&N,E 
c      o| n                    ^s
t&,/usr/local/clang/include/absl/log/check.h :t120r:u3e:, 
note:       expanded from macro 'CHECK_NE'| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  120   | 147  |   A B S L _ L O G _ I N T E R N A L _fCaHlEsCeK,_ NAEB_SILM_PILN(T(EvRaNlA1L)_,S I#NvGaLlE1_,A R(Gv(a)l)2;)
,       | #                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~v
al2/usr/local/clang/include/absl/container/internal/raw_hash_map.h):
133      :| 47  ^:
 note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'ABSL_INTERNAL_X':
51:3:   133note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
       51  |      A BASBLS_LL_OIGN_TIENRTNEARLN_AALT_TCRHIEBCUKT_EO_PC(ACPhTeUcRkE_DN_EB,Y (!t=h,i sv)a)l,1 ,   v a l 1 _ t e x t ,   v a l 2 ,   v a l 2 _ t e\x
t      )| 
                                              ^~~~      
|   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:/usr/local/clang/include/absl/container/internal/raw_hash_map.h22::146 :3note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
   68/usr/local/clang/include/absl/container/internal/raw_hash_map.h | : 135 :w16h:i lnote: eexpanded from macro 'ABSL_INTERNAL_X' 
(co  n135s | t   c h a r *   a b stlh_insu)l)l)a bAlBeS La_bAsTlT_RlIoBgU_TiEn_tLeIrFnEaTlI_McEh_eBcOkU_NoDp _{r e s u l t                       \ 
        |                       ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :\ 
note:       expanded from macro 'absl_nullable'| 
               ^
  257/usr/local/clang/include/absl/container/internal/common.h | :#32d:e9f:i nnote: emacro 'ABSL_INTERNAL_IF_false' defined here 
abs   l32_ | n#udlelfaibnlee  A_BNSuLl_lIaNbTlEeR
N      A| L                      ^_
IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_edge_iterator.cc:16:
In file included from ../src/s2/s2shapeutil_edge_iterator.h:22:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:In file included from 3s2/s2shapeutil_conversion.cc:: 18:
note: In file included from expanded from macro 'CHECK_NE'../src/s2/s2shapeutil_conversion.h
:28:
In file included from   ../src/s2/s2polygon.h120: | 29 :
 In file included from A/usr/local/clang/include/absl/container/flat_hash_map.hB:S45L:
_/usr/local/clang/include/absl/container/internal/raw_hash_map.hL:O149G:_51I:N Twarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R
NAL  _149C | H E C K _ N E _ I M P L ( ( v a l 1 )t,r u#ev,a lA1B,S L(_vIaNlT2E)R,N A#Lv_aSlI2N)G
L      E| _  ^A
RG/usr/local/clang/include/absl/log/internal/check_impl.h(:)51):;3
:       | note:                                                   ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:   12051: | 9 :  Anote: Bmacro 'ABSL_INTERNAL_X' defined hereS
L_L  O120G | _#IdNeTfEiRnNeA LA_BCSHLE_CIKN_TOEPR(NCAhLe_cXk(_FNuEn,c ,! =C,a lvlaele1,,  KvQaula1l_,t eVxQtu,a lv,a lK2V,a lvuael,2 _VtVeaxltu)e
,       | T  ^a
il/usr/local/clang/include/absl/log/internal/check_op.h,: 75.:.61.:)  note: \expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'

      |         ^
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 152:note: 52expanded from macro 'absl_nonnull':
 warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #d  e152f | i n e   a b s l _ n o n n u l l   _ Nfoanlnsuel,l 
A      B| S                     ^L
_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: In file included from macro 'ABSL_INTERNAL_X' defined heres2/s2shape_nesting_query.cc
:17:
In file included from ../src/s2/s2shape_nesting_query.h  :12026 | :
#In file included from d../src/s2/s2shape.he:f25i:
nIn file included from e../src/s2/s2coder.h :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:I67N:
T/usr/local/clang/include/absl/status/internal/status_internal.hE:R125N:A14L:_ Xwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]F
unc  ,125  | C a lSlteaet,u sKRQeupa*l ,a bVsQlu_anlo,n nKuVlall uCel,o nVeVAanlduUen,r eTfa(i
l      ,|               ^.
../usr/local/clang/include/absl/base/nullability.h): 241\:
22      :|          ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_non/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:u151l:l3 :_ Nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null  
151       | |                       ^ 
ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assignIn file included from ,s2/s2shape_nesting_query.cc :i17n:
sIn file included from e../src/s2/s2shape_nesting_query.hr:t26_:
oIn file included from r../src/s2/s2shape.h_:a25s:
sIn file included from i../src/s2/s2coder.hg:n23_:
iIn file included from m/usr/local/clang/include/absl/status/status.hp:l67,:
 &/usr/local/clang/include/absl/status/internal/status_internal.h&:,149 :c13o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
, fa  l149s | ec,o
n      s| t  ^ 
ch/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:r133*: 52a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n133u | l l   M a k e C h e cAkBFSaLi_lISNtTrEiRnNgA(L
_      A| T            ^T
RIBU/usr/local/clang/include/absl/base/nullability.hT:E241_:C22A:P Tnote: Uexpanded from macro 'absl_nonnull'R
ED  _241B | Y#(dtehfiisn)e) ,a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
 \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9In file included from :s2/s2shape_nesting_query.cc :17note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
../src/s2/s2shape_nesting_query.h:26:
   In file included from 32../src/s2/s2shape.h | :#25d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from A/usr/local/clang/include/absl/status/status.hB:S67L:
_/usr/local/clang/include/absl/status/internal/status_internal.hI:N150T:E25R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
IF_  f150a | l s e ( icfo_nssatt iasbfsile:d:,S t.a.t.u)s *_ _aVbAs_lA_RnGoSn_n_u
l      l|          ^s
tatus, conIn file included from ss2/s2shapeutil_conversion.cct: 18c:
hIn file included from a../src/s2/s2shapeutil_conversion.hr:*28 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:n45u:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 162p:r3e:f iwarning: xpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
;
      |                           ^162
 |  /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dXe(fiinnsee ratb_solr__naosnsniuglnl,  _iNnosnenrutl_lo
r      _| a                     ^s
sign_impl, In file included from &s2/s2shape_nesting_query.cc&:,17 :
cIn file included from o../src/s2/s2shape_nesting_query.hn:s26t:
&In file included from ,../src/s2/s2shape.h :f25a:
lIn file included from s../src/s2/s2coder.he:,23
:
      In file included from | /usr/local/clang/include/absl/status/status.h  ^:
67:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/status/internal/status_internal.h::135150::1658::  note: warning: expanded from macro 'ABSL_INTERNAL_X'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    135150 |  |          c o n s t  tahbissl):):)S tAaBtSuLs_*A TaTbRsIlB_UnToEn_nLuIlFlE TsItMaEt_uBsO,U NcDo n{s t   c h a r *   a b s l _ n o n n u l l   p r e f i x ) ; 
\      
|                                                                ^| 
               ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/common.h241::3122::9 : note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_true' defined here

  241    | 31# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_utlrlu
e      (| i                     ^f
_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, In file included from &s2/s2shapeutil_visit_crossing_edge_pairs.cc&:,18 :
cIn file included from o../src/s2/s2shapeutil_visit_crossing_edge_pairs.hn:s23t:
&In file included from ,../src/s2/s2crossing_edge_query.h :t29r:
uIn file included from e../src/s2/r2.h,:
22      :
| In file included from   ^../src/s2/util/math/vector.h
:36:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/base/logging.h133::2152:
:In file included from  /usr/local/clang/include/absl/log/check.h:note: 37expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
  In file included from 133/usr/local/clang/include/absl/log/internal/check_op.h | : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h :A53B:
SL/usr/local/clang/include/absl/types/source_location.h_:I113N:T19E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_ATT  R113I | B U T E _ C AcPoTnUsRtE Dc_hBaYr(*t haibss)l)_,n o n n u l l   f i l e _ n a m e   =   _ _ b u i l t\i
n      _| F                                                   ^I
LE/usr/local/clang/include/absl/container/internal/common.h(:)31): 9{:
       | note:                   ^macro 'ABSL_INTERNAL_IF_true' defined here

/usr/local/clang/include/absl/base/nullability.h   :31241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   A241B | S#Ld_eIfNiTnEeR NaAbLs_lI_Fn_otnrnuuel(li f__Nsoantniuslfli
e      d| ,                     ^ 
...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.hIn file included from :s2/s2shapeutil_visit_crossing_edge_pairs.cc29::
18In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :../src/s2/s2shapeutil_visit_crossing_edge_pairs.h45::
23:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/s2crossing_edge_query.h164::293:
:In file included from  ../src/s2/r2.h:warning: 22:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:  21164:
 | In file included from  /usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:I21N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_op.hR:N41A:
LIn file included from _/usr/local/clang/include/absl/log/internal/strip.hX:(26i:
nIn file included from s/usr/local/clang/include/absl/log/internal/log_message.he:r53t:
_/usr/local/clang/include/absl/types/source_location.ho:r133_:a25s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
, in  s133e | r t _coorn_satsesxipgrn _ciomnpslt,  c&h&a,r *c oanbsstl&_,n otnrnuuel,l
       f| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
e_  n165a | m e ( )   c o n s t   n  o e x c e pfta l{s
e      ,|                          ^A
BS/usr/local/clang/include/absl/base/nullability.hL:_241I:N22T:E Rnote: Nexpanded from macro 'absl_nonnull'A
L_  S241I | N#GdLeEf_iAnReG (a)b)s;l
_      n| o                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 133_:N47o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l
      |                        ^133
 |           ABSL_INIn file included from Ts2/s2shapeutil_visit_crossing_edge_pairs.ccE:R18N:
AIn file included from L../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:A23T:
TIn file included from R../src/s2/s2crossing_edge_query.hI:B29U:
TIn file included from E../src/s2/r2.h_:C22A:
PIn file included from T../src/s2/util/math/vector.hU:R36E:
DIn file included from _../src/s2/base/logging.hB:Y21(:
tIn file included from h/usr/local/clang/include/absl/log/check.hi:s37):
)In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 53 :
 /usr/local/clang/include/absl/types/source_location.h : 142 : 25 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                               ^~~~
  142 |   co/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:s164t:e3x:p rwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
o/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:s135t: 16c:h anote: rexpanded from macro 'ABSL_INTERNAL_X'*
 ab  s135l | _ n o n n u l l   f utnhcitsi)o)n)_ nAaBmSeL(_)A TcToRnIsBtU TnEo_eLxIcFeEpTtI M{E
_      B| O                        ^U
ND/usr/local/clang/include/absl/base/nullability.h :{241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l\l
       _| N               ^In file included from o
ns2/s2shape_nesting_query.ccn:/usr/local/clang/include/absl/container/internal/common.hu17:l:
32lIn file included from :
../src/s2/s2shape_nesting_query.h9      ::| 26                     ^ :

In file included from note: ../src/s2/s2shape.hmacro 'ABSL_INTERNAL_IF_false' defined here:
25:
In file included from ../src/s2/s2coder.h   :3223 | :
#/usr/local/clang/include/absl/status/status.hd:e725f:i38n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from B
s2/s2shapeutil_visit_crossing_edge_pairs.ccS:L18_:
  IIn file included from 725N../src/s2/s2shapeutil_visit_crossing_edge_pairs.h | T: E23 R:
sNIn file included from tA../src/s2/s2crossing_edge_query.haL:t_29iI:
cF In file included from _s../src/s2/r2.hft:aa22lt:
suIn file included from es../src/s2/util/math/vector.h(_:ii36fn:
_tIn file included from se../src/s2/base/logging.har:tn21ia:
slfIn file included from :i:/usr/local/clang/include/absl/log/check.heS:dt37,a:
 tIn file included from .u/usr/local/clang/include/absl/log/internal/check_impl.h.s:.R21)e:
 pIn file included from _*/usr/local/clang/include/absl/log/internal/check_op.h_ V:aA41b_:
sAIn file included from lR/usr/local/clang/include/absl/log/internal/strip.h_G:nS26o_:
n_In file included from n
/usr/local/clang/include/absl/log/internal/log_message.hu      l:| l        ^53 
:
P/usr/local/clang/include/absl/types/source_location.hr:e150p:a40r:e Twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]M
odi  f150y | ( 
        |                                       ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i nceo nasbts lc_hnaorn*n ualbls l__Nnoonnnnuullll
       f| i                     ^l
e_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2shapeutil_conversion.cc:: 18:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2shapeutil_conversion.h
:28:
  In file included from 241../src/s2/s2polygon.h | :#29d:
eIn file included from f/usr/local/clang/include/absl/container/flat_hash_map.hi:n45e:
 /usr/local/clang/include/absl/container/internal/raw_hash_map.ha:b167s:l51_In file included from :ns2/s2shape_nesting_query.cc o:warning: n17passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n:

uIn file included from l../src/s2/s2shape_nesting_query.hl:   26167_:
N | oIn file included from  n../src/s2/s2shape.h n: u25l l:
 
In file included from        ../src/s2/s2coder.h | :                      ^23 
 :
 /usr/local/clang/include/absl/status/status.h : 732 : 29 :   warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue,   A732B | S L _sItNaTtEiRcN AcLo_nSsItN GsLtEd_:A:RIn file included from sGs2/s2shapeutil_visit_crossing_edge_pairs.cct(r:)i18)n;:
g
*In file included from        ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h| a:                                                  ^b23
s:
lIn file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h_../src/s2/s2crossing_edge_query.h:n:120o29:n:
9nIn file included from :u../src/s2/r2.h l:note: l22macro 'ABSL_INTERNAL_X' defined here :

EIn file included from m../src/s2/util/math/vector.hp:  t36120y:
 | SIn file included from #td../src/s2/base/logging.hrei:fn21ig:
n(In file included from e)/usr/local/clang/include/absl/log/check.h ;:A
B37      S:
| LIn file included from                             ^_/usr/local/clang/include/absl/log/internal/check_impl.h
I:N21/usr/local/clang/include/absl/base/nullability.hT:
:EIn file included from R241/usr/local/clang/include/absl/log/internal/check_op.hN::A2241L::
_ In file included from X/usr/local/clang/include/absl/log/internal/strip.hnote: (:expanded from macro 'absl_nonnull'F26
u:
nIn file included from c  /usr/local/clang/include/absl/log/internal/log_message.h,241:  | 53C#:
ad/usr/local/clang/include/absl/types/source_location.hle:lf165ei:en15,e : K aQwarning: butype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sa
ll  _,165n  | oV nQ nucuaollnls,t   _KcNhVoaanrln*uu ela,bl s
Vl      _Vn| ao                     ^nln
uuel,l  Tfaiille,_ n.a.m.e)_  \=
       "| In file included from "        ^s2/s2shape_nesting_query.cc;

:      17| :
              ^In file included from 
../src/s2/s2shape_nesting_query.h:26/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2shape.h::2225::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
/usr/local/clang/include/absl/status/status.h  :241733 | :#29d:e fwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e a  b733s | l _ nsotnantuilcl  c_oNnosntn usltld
:      :| s                     ^t
ring* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 166a:b3s:l _warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nnul  l166  | _ N oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, truIn file included from es2/s2shape_nesting_query.cc,:
17      :
| In file included from   ^../src/s2/s2shape_nesting_query.h
:26:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/s2shape.h133::2552:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/status/status.h:751:  61133: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       751  |   A BsStLa_tIiNcT EuRiNnAtLp_tArT_TtR IPBoUiTnEt_eCrATPoTRUeRpE(Ds_tBaYt(utsh_iisn)t)e,r n a l : : S t a t u s R e p *   a b s l _ n o n n u\l
l       | r                                                   ^)
;
/usr/local/clang/include/absl/container/internal/common.h      :| 31                                                            ^:
9: /usr/local/clang/include/absl/base/nullability.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here241
:22:    31note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eAfBiSnLe_ IaNbTsElR_NnAoLn_nIn file included from Ius2/s2shapeutil_visit_crossing_edge_pairs.cclF:l_18 t:
_rIn file included from Nu../src/s2/s2shapeutil_visit_crossing_edge_pairs.hoe:n(23ni:
ufIn file included from l_../src/s2/s2crossing_edge_query.hls:
a29      t:
| iIn file included from                      ^s../src/s2/r2.h
f:i22e:
dIn file included from ,../src/s2/util/math/vector.h :.36.:
.In file included from )../src/s2/base/logging.h :i21f:
_In file included from s/usr/local/clang/include/absl/log/check.ha:t37i:
sIn file included from fIn file included from /usr/local/clang/include/absl/log/internal/check_impl.his2/s2shape_nesting_query.cc:e:21d17:

:
In file included from       In file included from /usr/local/clang/include/absl/log/internal/check_op.h| ../src/s2/s2shape_nesting_query.h:        ^:41
26:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h../src/s2/s2shape.h::2625:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2coder.h::7123::
26In file included from :/usr/local/clang/include/absl/status/status.hs2/s2shapeutil_conversion.cc ::752warning: 18:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
44
In file included from :../src/s2/s2shapeutil_conversion.h :28warning:    :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]71In file included from 
 | ../src/s2/s2polygon.h : 29  L:
752oIn file included from g | M/usr/local/clang/include/absl/container/flat_hash_map.h e: s45ss:
ta/usr/local/clang/include/absl/container/internal/raw_hash_map.hag:te166i(:cc3 o:cn oswarning: nt'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] sc
th asrt*  a 166ta | ub ss _lAi_BnnSotnLen_ruInlNalTl E:fRi:NlSAetL,a _tiXnu(tsi Rnlesipen*er ,ta
_bo      sr| l                         ^__
ansosn/usr/local/clang/include/absl/base/nullability.hin:gu241nl:,l22  :iR nenote: spexpanded from macro 'absl_nonnull'eT
rotP  _o241oi | rn#_tdaeesrfs(iin
ge      n | _a                                           ^ib
mspl/usr/local/clang/include/absl/base/nullability.h_l:n,o241n n:&u22&l:,l   note: c_expanded from macro 'absl_nonnull'oN
nosn  ntu241&l | l,#
 d      te| rf                     ^ui
en,e
       a| b  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s
l_  n167o | n n u l l   _ N o n n u l l 
        |                       ^ 
true, ABSL_INTERNAL_SINGLE_AIn file included from Rs2/s2shapeutil_visit_crossing_edge_pairs.ccG:(18):
)In file included from ;../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
:      23| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/s2crossing_edge_query.h:29:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/r2.h133::2247:
:In file included from  ../src/s2/util/math/vector.h:note: 36expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/base/logging.h:21:
  In file included from 133/usr/local/clang/include/absl/log/check.h | : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h :A41B:
SIn file included from L/usr/local/clang/include/absl/log/internal/strip.h_:I26N:
T/usr/local/clang/include/absl/log/internal/log_message.hE:R78N:A26L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIB   U78T | E _ CLAoPgTMUeRsEsDa_gBeY((ctohnisst) )c,h a r *   a b s l _ n o n n u l l   f i l e ,   i n t\ 
l      i| n                                              ^~~~e
,
      |                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/base/nullability.h::166241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/raw_hash_map.h:  135241: | 16#:d enote: fexpanded from macro 'ABSL_INTERNAL_X'i
ne   a135b | s l _ n o n n u l l  t_hNiosn)n)u)l lA
B      S| L                     ^_
ATTRIBUTE_LIFETIME_BOUND {          In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 29 :
 In file included from  ../src/s2/r2.h : 22 :
 In file included from \../src/s2/util/math/vector.h
:      36| :
               ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31/usr/local/clang/include/absl/log/check.h::937::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here21
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:   4131:
 | In file included from #/usr/local/clang/include/absl/log/internal/strip.hd:e26f:
i/usr/local/clang/include/absl/log/internal/log_message.hn:e80 :A26B:S Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTE   R80N | A L _LIoFg_Mtersusea(gief(_csoantsits fciheadr,*  .a.b.s)l _info_nsnautlils ffiielde
,       | i        ^n
t line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2shapeutil_conversion.cc::2218::
 In file included from ../src/s2/s2shapeutil_conversion.hnote: :expanded from macro 'absl_nonnull'28
:
In file included from ../src/s2/s2polygon.h  :24129 | :
#In file included from d/usr/local/clang/include/absl/container/flat_hash_map.he:f45i:
n/usr/local/clang/include/absl/container/internal/raw_hash_map.he: 166a:b3s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
nnull   166_ | N o nAnBuSlLl_
I      N| T                     ^E
RNAL_X(insert_or_assign, insIn file included from es2/s2shapeutil_visit_crossing_edge_pairs.ccr:t18_:
oIn file included from r../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:a23s:
sIn file included from i../src/s2/s2crossing_edge_query.hg:n29_:
iIn file included from m../src/s2/r2.hp:l22,:
 In file included from &../src/s2/util/math/vector.h&:,36 :
cIn file included from o../src/s2/base/logging.hn:s21t:
&In file included from ,/usr/local/clang/include/absl/log/check.h :t37r:
uIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h,:
21      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/log/internal/check_op.h
:41:
  In file included from 167/usr/local/clang/include/absl/log/internal/strip.h | : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 82 : 26 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       82  |   t rLuoeg,M eAsBsSaLg_eI(NcToEnRsNtA Lc_hSaIrN*G LaEb_sAlR_Gn(o)n)n;u
l      l|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~f
ile/usr/local/clang/include/absl/container/internal/raw_hash_map.h,: 135i:n11t:  lnote: iexpanded from macro 'ABSL_INTERNAL_X'n
e,
        | 135                         ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull't
hi  s241) | )#)d eAfBiSnLe_ AaTbTsRlI_BnUoTnEn_uLlIlF E_TNIoMnEn_uBlOlU
N      D|                       ^{
                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45:In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc:warning: 18passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23  :
170In file included from  | ../src/s2/s2crossing_edge_query.h : 29 :
 In file included from  ../src/s2/r2.h : 22 :
 In file included from  ../src/s2/util/math/vector.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
AIn file included from B/usr/local/clang/include/absl/log/check.hS:L37_:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/internal/check_op.hL:_41S:
IIn file included from N/usr/local/clang/include/absl/log/internal/strip.hG:L26E:
_/usr/local/clang/include/absl/log/internal/log_message.hA:R119G:(41):) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                             ^
  /usr/local/clang/include/absl/container/internal/raw_hash_map.h119: | 120 : 9L:o gnote: Mmacro 'ABSL_INTERNAL_X' defined heree
ssa  g120e | &# dTeofSiinnek AAlBsSoL(_aIbNsTlE:R:NLAoLg_SXi(nFku*n ca,b sCla_lnloenen,u lKlQ usailn,k )V;Q
u      a| l                                        ^,
 K/usr/local/clang/include/absl/base/nullability.hV:a241l:u22e:,  note: Vexpanded from macro 'absl_nonnull'V
al  u241e | ,# dTeafiiln,e  .a.b.s)l _\n
o      n| n        ^u
ll _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink)/usr/local/clang/include/absl/container/internal/raw_hash_map.h;:
169      :| 3                                        ^:
 warning: /usr/local/clang/include/absl/base/nullability.h:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
:22: note:   expanded from macro 'absl_nonnull'169
 |     241A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(oinnnsuelrlt __oNro_nansuslilg
n      ,|                       ^i
nsert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),   In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 29 :
 In file included from  ../src/s2/r2.h : 22 :
 In file included from  ../src/s2/util/math/vector.h : 36\:

In file included from       ../src/s2/base/logging.h| :                                                   ^21
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/internal/common.h::3732:
:In file included from 9/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/log/internal/check_op.h
:41:
In file included from    /usr/local/clang/include/absl/log/internal/strip.h32: | 26#:
d/usr/local/clang/include/absl/log/internal/log_message.he:f158i:n32e:  Awarning: Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S
L_I  N158T | E R NLAoLg_MIeFs_sfaagles&e (oipfe_rsaattoirs<f<i(evdo,i d.*. .a)b s_l__VnAu_lAlRaGbSl_e_ 
       v| )        ^ 
{
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2shapeutil_conversion.cc:note: 18expanded from macro 'absl_nullable':

In file included from ../src/s2/s2shapeutil_conversion.h:  28257:
 | In file included from #../src/s2/s2polygon.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.he: 45a:
b/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l169_:n3u:l lwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
le   _169N | u l lAaBbSlLe_
I      N| T                      ^E
RNAL_X(insert_or_assign,In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cci:n18s:
eIn file included from r../src/s2/s2shapeutil_visit_crossing_edge_pairs.ht:_23o:
rIn file included from _../src/s2/s2crossing_edge_query.ha:s29s:
iIn file included from g../src/s2/r2.hn:_22i:
mIn file included from p../src/s2/util/math/vector.hl:,36 :
&In file included from &../src/s2/base/logging.h,: 21&:
&In file included from ,/usr/local/clang/include/absl/log/check.h :f37a:
lIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.he:,21 :
fIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hl:s41e:
,In file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26  ^:

/usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h161::13538::16 : warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

    161135 |  |     L o g M e s s a gteh&i so)p)e)r aAtBoSrL<_<A(TcToRnIsBtU TvEo_iLdI*F EaTbIsMlE__nBuOlUlNaDb l{e     v )   { 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f\i
n      e|                 ^a
bs/usr/local/clang/include/absl/container/internal/common.hl:_32n:u9l:l anote: bmacro 'ABSL_INTERNAL_IF_false' defined herel
e _   N32u | l#ldaebflien
e       | A                      ^B
SL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172In file included from  | s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 29 :
 In file included from  ../src/s2/r2.h : 22 :
AIn file included from B../src/s2/util/math/vector.hS:L36_:
IIn file included from N../src/s2/base/logging.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37S:
IIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hG:L21E:
_In file included from A/usr/local/clang/include/absl/log/internal/check_op.hR:G41(:
)In file included from )/usr/local/clang/include/absl/log/internal/strip.h;:
26      :
| /usr/local/clang/include/absl/log/internal/log_message.h                                            ^:
179:35/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 120:warning: 9:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
note: macro 'ABSL_INTERNAL_X' defined here
  179 |     120L | o#gdMeefsisnaeg eA&B SoLp_eIrNaTtEoRrN<A<L(_wXc(hFaurn_ct,*  Caablslle_en,u lKlQauballe,  vV)Q;u
a      l| ,                                  ^ 
KV/usr/local/clang/include/absl/base/nullability.ha:l257u:e23,:  Vnote: Vexpanded from macro 'absl_nullable'a
lu  e257, |  #Tdaeifli,n e. .a.b)s l\_
n      u| l        ^l
able _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   Lo/usr/local/clang/include/absl/container/internal/raw_hash_map.hg:M171e:s3s:a gwarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]&
 ope  r171a | t o rA<B<S(Ls_tIdN:T:EoRsNtArLe_aXm(&i n(s*earbts_lo_rn_oansnsuilgln ,m )i(nsstedr:t:_oosrt_raesasmi&g no_si)m)p;l
,       | &                                         ^&
, /usr/local/clang/include/absl/base/nullability.h&:&241,: 22f:a lnote: sexpanded from macro 'absl_nonnull'e
,   t241r | u#ed,e
f      i| n  ^e
 a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:s133l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   _133N | o n n u l l 
        |                       ^ 
ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(In file included from ts2/s2shapeutil_visit_crossing_edge_pairs.cch:i18s:
)In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h):,23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 29 :
 In file included from  ../src/s2/r2.h : 22 :
 In file included from  ../src/s2/util/math/vector.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
\In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                                   ^:

In file included from /usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/container/internal/common.h41::
32In file included from :/usr/local/clang/include/absl/log/internal/strip.h9::26 :
note: /usr/local/clang/include/absl/log/internal/log_message.hmacro 'ABSL_INTERNAL_IF_false' defined here:
191:43:    32 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e191  | A B SLLo_gIMNeTsEsRaNgAeL&_ IoFp_efraaltsoer(<i<f(_sstadt:i:sifoise_db,a s.e.&. )( *_a_bVsAl__AnRoGnSn_u_l
l       | m        ^)
(std::iIn file included from os2/s2shapeutil_conversion.ccs:_18b:
aIn file included from s../src/s2/s2shapeutil_conversion.he:&28 :
oIn file included from s../src/s2/s2polygon.h):)29;:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h| :                                          ^45
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/base/nullability.h::171241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

  241   | 171# | d e fAiBnSeL _aIbNsTlE_RnNoAnLn_uXl(li n_sNeorntn_uolrl_
a      s| s                     ^i
gn, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |       In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
tIn file included from h../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:s23):
)In file included from )../src/s2/s2crossing_edge_query.h :A29B:
SIn file included from L../src/s2/r2.h_:A22T:
TIn file included from R../src/s2/util/math/vector.hI:B36U:
TIn file included from E../src/s2/base/logging.h_:L21I:
FIn file included from E/usr/local/clang/include/absl/log/check.hT:I37M:
EIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hB:O21U:
NIn file included from D/usr/local/clang/include/absl/log/internal/check_op.h :{41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 306 : 3 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       306  |      a  b s l _\n
o      n| n          ^~~~u
ll std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable con/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:t178&: 3v:) ;warning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                   ^
  /usr/local/clang/include/absl/base/nullability.h178: | 257 : 23A:B Snote: Lexpanded from macro 'absl_nullable'_
IN  T257E | R#NdAeLf_iXn(ei nasbesrlt__nourl_laasbslieg n_,N uilnlsaebrlte_
o      r| _                      ^a
ssign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERIn file included from Ns2/s2shapeutil_visit_crossing_edge_pairs.ccA:L18_:
AIn file included from T../src/s2/s2shapeutil_visit_crossing_edge_pairs.hT:R23I:
BIn file included from U../src/s2/s2crossing_edge_query.hT:E29_:
CIn file included from A../src/s2/r2.hP:T22U:
RIn file included from E../src/s2/util/math/vector.hD:_36B:
YIn file included from (../src/s2/base/logging.ht:h21i:
sIn file included from )/usr/local/clang/include/absl/log/check.h):,37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 321 : 52 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
\
      |                                                    ^  
321 | i/usr/local/clang/include/absl/container/internal/common.hn:l32i:n9e:  Lnote: omacro 'ABSL_INTERNAL_IF_false' defined hereg
Mes   s32a | g#ed&e fLiongeM eAsBsSaLg_eI:N:ToEpReNrAaLt_oIrF<_<f(awlcshea(ri_ft_*s aatbisslf_ineuldl,a b.l.e. )v )_ _{V
A      _| A                                                   ^R
GS/usr/local/clang/include/absl/base/nullability.h_:_257
:      23| :        ^ 
note: expanded from macro 'absl_nullable'
  257 | #definIn file included from e as2/s2shapeutil_conversion.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_conversion.hu:l28l:
aIn file included from b../src/s2/s2polygon.hl:e29 :
_In file included from N/usr/local/clang/include/absl/container/flat_hash_map.hu:l45l:
a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:l178e:
3      :|                        ^
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                      In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23\:

In file included from       ../src/s2/s2crossing_edge_query.h| :               ^29
:
In file included from ../src/s2/r2.h/usr/local/clang/include/absl/container/internal/common.h::2232:
:In file included from 9../src/s2/util/math/vector.h:: 36:
note: In file included from macro 'ABSL_INTERNAL_IF_false' defined here../src/s2/base/logging.h
:21:
In file included from    /usr/local/clang/include/absl/log/check.h32: | 37#:
dIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/log/internal/check_op.hA:B41S:
LIn file included from _/usr/local/clang/include/absl/log/internal/strip.hI:N26T:
E/usr/local/clang/include/absl/log/internal/log_message.hR:N340A:L46_:I Fwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
alse  (340i | f _ sfartiiesnfdi evdo,i d. .A.b)s l_F_oVrAm_aAtRFGlSu_s_h
(      S| t        ^r
ingifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, coIn file included from ns2/s2shape_nesting_query.ccs:t17&:
,In file included from 
../src/s2/s2shape_nesting_query.h      :| 26  ^:

In file included from ../src/s2/s2shape.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::25135:
:In file included from 16../src/s2/s2coder.h:: 23:
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/status/status.h
:1031:42:   135 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       1031  |  itnhliisn)e) )c oAnBsStL _sAtTaTtRuIsB_UiTnEt_eLrInFaElT:I:MSEt_aBtOuUsNRDe p{*   a b s l _ n o n n u l l   S t a t u s : : R e p T o P o i\n
t      e| r               ^(

      /usr/local/clang/include/absl/container/internal/common.h| :                                         ^31
:9: note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_IF_true' defined here:
241:22:    31 | note: #expanded from macro 'absl_nonnull'd
efi  n241e |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oInFn_utlrlu e_(Niofn_nsualtli
s      f| i                     ^e
d, ...) if_satisfied
      |         ^
In file included from In file included from s2/s2shapeutil_visit_crossing_edge_pairs.ccs2/s2shapeutil_conversion.cc::1818:
:
In file included from In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h../src/s2/s2shapeutil_conversion.h::2328:
:
In file included from In file included from ../src/s2/s2crossing_edge_query.h../src/s2/s2polygon.h::2929:
:
In file included from In file included from ../src/s2/r2.h/usr/local/clang/include/absl/container/flat_hash_map.h::2245:
:
In file included from ../src/s2/util/math/vector.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::36In file included from 180:
s2/s2shape_nesting_query.cc:In file included from :3../src/s2/base/logging.h17:::
 21In file included from :
warning: ../src/s2/s2shape_nesting_query.hIn file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:/usr/local/clang/include/absl/log/check.h
26::
37In file included from :
../src/s2/s2shape.hIn file included from :  /usr/local/clang/include/absl/log/internal/check_impl.h25180::
 | 21In file included from  :
../src/s2/s2coder.h In file included from :A/usr/local/clang/include/absl/log/internal/check_op.h23B::
S41/usr/local/clang/include/absl/status/status.hL:
:_In file included from 1038I/usr/local/clang/include/absl/log/internal/strip.h:N:33T26:E:
 R/usr/local/clang/include/absl/log/internal/log_message.hwarning: N:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A398
L:_11X: ( 1038iwarning:  | ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] s
 e r   ts398_t | oa rt _u as s_vsioinigtdne*,r  naiabnlss:le:_rSnttu_alotlrua_sbalRsees pci*og nnas_bitsm&lp _lvn,)o ;nc
no      un| ls          ^lt
 &r,/usr/local/clang/include/absl/base/nullability.h e:cp257o):n 23s{:t
 &      note: ,| expanded from macro 'absl_nullable'
                                ^
      
|     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~257
/usr/local/clang/include/absl/base/nullability.h | :#241  d:181e22 | f: i  nnote:  eexpanded from macro 'absl_nonnull'  
 a   b s241 l |  _# nd ue lf li an be l  ea  bf_saNllu_slneol,na nbtulrleul
e       ,_|  N                      ^.o
fninrusltl,
       c| o                     ^n
st_iterator ABSIn file included from Ls2/s2shapeutil_visit_crossing_edge_pairs.cc_:I18N:
TIn file included from E../src/s2/s2shapeutil_visit_crossing_edge_pairs.hR:N23A:
LIn file included from _../src/s2/s2crossing_edge_query.hC:O29M:
MIn file included from A../src/s2/r2.h):;22
:
In file included from       ../src/s2/util/math/vector.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~36
:
In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h21::
135In file included from :/usr/local/clang/include/absl/log/check.h11::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'ABSL_INTERNAL_X':
21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:  41135:
 | In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h : 400 : 17 :t hwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
)))   400A | B S L _ AcToTnRsItB UvToEi_dL*I FaEbTsIlM_En_uBlOlUaNbDl e{  c o n s t &   v ) ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | \#
d      e| f          ^~~~i
ne absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:      182| :                     ^3
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |  In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.ccA:B18S:
LIn file included from _../src/s2/s2shapeutil_visit_crossing_edge_pairs.hI:N23T:
EIn file included from R../src/s2/s2crossing_edge_query.hN:A29L:
_In file included from X../src/s2/r2.h(:i22n:
sIn file included from e../src/s2/util/math/vector.hr:t36_:
oIn file included from r../src/s2/base/logging.h_:a21s:
sIn file included from i/usr/local/clang/include/absl/log/check.hg:n37,:
 In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:s21e:
rIn file included from t/usr/local/clang/include/absl/log/internal/check_op.h_:o41r:
_In file included from a/usr/local/clang/include/absl/log/internal/strip.hs:s26i:
g/usr/local/clang/include/absl/log/internal/log_message.hn:_427i:m31p:l ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ons  t427& | ,   c o n s t & ,   t r u e , 
        |    ^c
on/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:t133 :c52h:a rnote: *expanded from macro 'ABSL_INTERNAL_X' 
abs  l133_ | n o n n u l l   f a iAlBuSrLe__ImNsTgE)R NAABLS_LA_TATTRTIRBIUBTUET_EC_ACPOTLUDR;E
D      _| B                              ^Y
(t/usr/local/clang/include/absl/base/nullability.hh:i241s:)22):,  note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l\l
       _| N                                                   ^o
nnu/usr/local/clang/include/absl/container/internal/common.hl:l31
:      9| :                     ^ 
note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from In file included from s2/s2shapeutil_conversion.cc../src/s2/base/logging.h::1821:
:
In file included from In file included from ../src/s2/s2shapeutil_conversion.h/usr/local/clang/include/absl/log/check.h::2837:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/log/internal/check_impl.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/log/internal/check_op.h::4541:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/log/internal/strip.h::18226::
3:/usr/local/clang/include/absl/log/internal/log_message.h :436warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]36
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 |    436  | A B SLLo_gIMNeTsEsRaNgAeLD_eXb(uignFsaetratl_(ocro_nassts icghna,r *i nasbesrlt__noorn_nauslsli gfni_liem,p
l      ,|                                     ^c
on/usr/local/clang/include/absl/base/nullability.hs:t241&:,22 :c onote: nexpanded from macro 'absl_nonnull's
t&  ,241  | t#rdueef,i
n      e|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bsl  _183n | o n n u l l   _ N o n n u l l 
        |                       ^f
alse, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |  In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18:
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from A../src/s2/s2crossing_edge_query.hB:S29L:
_In file included from I../src/s2/r2.hN:T22E:
RIn file included from N../src/s2/util/math/vector.hA:L36_:
AIn file included from T../src/s2/base/logging.hT:R21I:
BIn file included from U/usr/local/clang/include/absl/log/check.hT:E37_:
CIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hP:T21U:
RIn file included from E/usr/local/clang/include/absl/log/internal/check_op.hD:_41B:
YIn file included from (/usr/local/clang/include/absl/log/internal/strip.ht:h26i:
s/usr/local/clang/include/absl/log/internal/log_message.h):)446,: 43 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      446  |      L o g M e s s a g e Q u i\e
t      l| y                                              ^~~~D
ebugFat/usr/local/clang/include/absl/container/internal/raw_hash_map.ha:l182(:c3o:n swarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
c/usr/local/clang/include/absl/container/internal/raw_hash_map.hh:a135r:*16 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_no  n135n | u l l   f i l e , 
       t| h                                          ^i
s)/usr/local/clang/include/absl/base/nullability.h):)241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'A
TT  R241I | B#UdTeEf_iLnIeF EaTbIsMlE__nBoOnUnNuDl l{  _ N o n n u l l 
        |                       ^ 
                 \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(In file included from is2/s2shapeutil_visit_crossing_edge_pairs.ccf:_18s:
aIn file included from t../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:s23f:
iIn file included from e../src/s2/s2crossing_edge_query.hd:,29 :
.In file included from .../src/s2/r2.h.:)22 :
_In file included from _../src/s2/util/math/vector.hV:A36_:
AIn file included from R../src/s2/base/logging.hG:S21_:
_In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37        ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull fIn file included from is2/s2shapeutil_conversion.ccl:e18,:
 In file included from i../src/s2/s2shapeutil_conversion.hn:t28 :
lIn file included from i../src/s2/s2polygon.hn:e29,:

In file included from       /usr/local/clang/include/absl/container/flat_hash_map.h| :                                     ^45
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/base/nullability.h::184241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

  241 |   #184d | e f iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( i_nNsoenrntu_lolr
_      a| s                     ^s
ign, inseIn file included from rs2/s2shapeutil_visit_crossing_edge_pairs.cct:_18o:
rIn file included from _../src/s2/s2shapeutil_visit_crossing_edge_pairs.ha:s23s:
iIn file included from g../src/s2/s2crossing_edge_query.hn:_29i:
mIn file included from p../src/s2/r2.hl:,22 :
cIn file included from o../src/s2/util/math/vector.hn:s36t:
&In file included from ,../src/s2/base/logging.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/check.ht:&37,:
 In file included from t/usr/local/clang/include/absl/log/internal/check_impl.hr:u21e:
,In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h      :| 41  ^:

In file included from /usr/local/clang/include/absl/log/internal/strip.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h26::
133/usr/local/clang/include/absl/log/internal/log_message.h::52457:: 38:note:  expanded from macro 'ABSL_INTERNAL_X'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133   | 457  |                   A B S L _ I N T E R N A L _ A T TcRoInBsUtT Ec_hCaArP*T UaRbEsDl__BnYo(ntnhuilsl) )f,a i l u r e _ m s g ) 
        |                                       ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
\
        241|  |                                                    ^#
de/usr/local/clang/include/absl/container/internal/common.hf:i31n:e9 :a bnote: smacro 'ABSL_INTERNAL_IF_true' defined herel
_no   n31n | u#ldle f_iNnoen nAuBlSlL
_      I| N                     ^T
ERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                  In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
            \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                        s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char      \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   tru* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:e, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   3136:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::st | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAring&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpStringL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) In file included from _s2/s2shapeutil_get_reference_point.cc_:V18A:
_In file included from A../src/s2/s2shapeutil_get_reference_point.hR:G21S:
_In file included from _../src/s2/s2shape.h
:      25| :
        ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2shapeutil_conversion.cc::8618:
:
In file included from ../src/s2/s2shapeutil_conversion.h/usr/local/clang/include/absl/strings/cord_analysis.h::2832:
:In file included from 47../src/s2/s2polygon.h:: 29:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/flat_hash_map.h
:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:   332: |  swarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]z
e_t   205G | e t EAsBtSiLm_aItNeTdEMReNmAoLr_yXU(siangsee(rcto_or_nast(  C o r\d
R      e| p                              ^*
 abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 re  p241) | ;#
d      e| f                                              ^i
ne a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnullIn file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc_:N18o:
nIn file included from n../src/s2/s2shapeutil_visit_crossing_edge_pairs.hu:l23l:

In file included from       ../src/s2/s2crossing_edge_query.h| :                     ^29
:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 462s2/s2shapeutil_get_reference_point.cc | : 18 :
 In file included from  ../src/s2/s2shapeutil_get_reference_point.hc:o21n:
sIn file included from t../src/s2/s2shape.h :s25i:
gIn file included from n../src/s2/s2coder.he:d23 :
cIn file included from h/usr/local/clang/include/absl/status/status.ha:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n86n:
u/usr/local/clang/include/absl/strings/cord_analysis.hl:l50):;49
:       | warning:                        ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:   2250: |  snote: iexpanded from macro 'absl_nonnull'z
e_  t241  | G#edteMfoirneeP raebcsils_enMoenmnourlylU s_aNgoen(ncuolnls
t       | C                     ^o
rdRep* abIn file included from ss2/s2shapeutil_visit_crossing_edge_pairs.ccl:_18n:
oIn file included from n../src/s2/s2shapeutil_visit_crossing_edge_pairs.hn:u23l:
lIn file included from  ../src/s2/s2crossing_edge_query.hr:e29p:
)In file included from ;../src/s2/r2.h
:      22| :
                                                ^In file included from 
../src/s2/util/math/vector.h:36/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/base/logging.h::2221::
 In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nonnull':
37:
  In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h | :#21d:
e/usr/local/clang/include/absl/log/internal/check_op.hf:i462n:e24 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: _expanded from macro 'absl_nonnull'N
on  n241u | l#ld
e      f| i                     ^n
e absl_nonnull _NonIn file included from ns2/s2shapeutil_get_reference_point.ccu:l18l:

In file included from       ../src/s2/s2shapeutil_get_reference_point.h| :                     ^21
:
In file included from ../src/s2/s2shape.h:25:
In file included from In file included from ../src/s2/s2coder.hs2/s2shapeutil_visit_crossing_edge_pairs.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::6723:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2crossing_edge_query.h::2929:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/r2.h::8622:
:
/usr/local/clang/include/absl/strings/cord_analysis.hIn file included from :../src/s2/util/math/vector.h56::3656:
:In file included from  ../src/s2/base/logging.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
In file included from /usr/local/clang/include/absl/log/check.h:37   :
56In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.hs:i21z:
e/usr/local/clang/include/absl/log/internal/check_op.h_:t461 :G1e:t Ewarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ima  t461e | dAFBaSiLr_SLhOaGr_eIMNeTmEoRrNyAULs_aDgEeF(IcNoEn_sMtA KCEo_rCdHREeCpK*_ OaPb_sSlT_RnIoNnGn_uElXlT ErReNp()
;      
|       ^| 
                                                       ^
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/base/nullability.h450::24125::22 :note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'note: 
expanded from macro 'absl_nonnull'
    450241 |  |  # d e f i nxe,  axb,s lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckssign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(OpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       xIn file included from ,s2/s2shapeutil_edge_iterator.cc :x20,:
 In file included from c/usr/local/clang/include/absl/strings/str_cat.ho:n116s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:h23a:
r*/usr/local/clang/include/absl/strings/numbers.h :a66b:s41l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   )66
 |        |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s li_nnto_ntnyuplel*  _aNbosnln_unloln
n      u| l                     ^l
 out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37In file included from :
s2/s2shapeutil_edge_iterator.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h20::
21In file included from :
/usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/log/internal/check_op.h116::
502In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h1::23 :
warning: /usr/local/clang/include/absl/strings/numbers.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
77:61:   502 | warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_L   O77G | _[I[NnToEdRiNsAcLa_rCdH]E]C Kb_oOoPl_ ISMiPmLp(lCehAetcokf_(EaQb,s l=:=:)s
t      r| i^n
g_/usr/local/clang/include/absl/log/internal/check_op.hv:i488e:w32 :s tnote: rexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL',
 fl  o488a | t *  ianblsiln_en ocnonnusltle xopurt )c;o
n      s| t                                                            ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdleef innaem ea#b#sIlm_pnlo(n n u l l   _ N o n n u l l 
        |                       ^ 
 \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abIn file included from ss2/s2shapeutil_edge_iterator.ccl:_20n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl:a116b:
lIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23_:
N/usr/local/clang/include/absl/strings/numbers.hu:l88l:a62b:l ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^
   88 | [[nodiscIn file included from as2/s2shapeutil_visit_crossing_edge_pairs.ccr:d18]:
]In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hb:o23o:
lIn file included from  ../src/s2/s2crossing_edge_query.hS:i29m:
pIn file included from l../src/s2/r2.he:A22t:
oIn file included from d../src/s2/util/math/vector.h(:a36b:
sIn file included from l../src/s2/base/logging.h:::21s:
tIn file included from r/usr/local/clang/include/absl/log/check.hi:n37g:
_In file included from v/usr/local/clang/include/absl/log/internal/check_impl.hi:e21w:
 /usr/local/clang/include/absl/log/internal/check_op.hs:t502r:,1 :d owarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
l/usr/local/clang/include/absl/log/internal/check_op.he:*489 :a47b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
onn  u489l | l   o u t ) ;c
o      n| s                                                             ^t
 T/usr/local/clang/include/absl/base/nullability.h1:&241 :v221:,  note: cexpanded from macro 'absl_nonnull'o
ns  t241  | T#2d&e fvi2n,e  caobnsslt_ ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^e
xprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2shapeutil_edge_iterator.cc:: 20:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/str_cat.h
:116:
  In file included from 241/usr/local/clang/include/absl/strings/internal/stringify_sink.h | :#23d:
e/usr/local/clang/include/absl/strings/numbers.hf:i98n:e60 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non   n98u | l[l[ n_oNdoinsncualrld
]      ]|                       ^b
ool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:In file included from 29s2/s2shapeutil_edge_iterator.cc:
:In file included from 20../src/s2/r2.h:
:In file included from 22/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116../src/s2/util/math/vector.h:
:In file included from 36/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:In file included from 23../src/s2/base/logging.h:
:21/usr/local/clang/include/absl/strings/numbers.h:
:In file included from 112/usr/local/clang/include/absl/log/check.h::4437::
 In file included from /usr/local/clang/include/absl/log/internal/check_impl.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
/usr/local/clang/include/absl/log/internal/check_op.h:502  :1121 | :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
  /usr/local/clang/include/absl/log/internal/check_op.h : 497 : 32 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
       497  |      i n l i n e   c o nisntte_xtpyrp ec*o nasbts lc_hnaorn*n ualbls lo_untu)l;l
a      b| l                                           ^e
 n/usr/local/clang/include/absl/base/nullability.ha:m241e:#22#:I mnote: pexpanded from macro 'absl_nonnull'l
(    241  |  # d e f i n e   a b s l _ n o n\n
u      l| l                               ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n257n:u23l:l 
      note: | expanded from macro 'absl_nullable'                     ^

  257 | #define absl_nullable In file included from _s2/s2shapeutil_edge_iterator.ccN:u20l:
lIn file included from a/usr/local/clang/include/absl/strings/str_cat.hb:l116e:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                      ^23
:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from   ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h116: | 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h :29 :
 In file included from  ../src/s2/r2.h : 22 :
 In file included from  ../src/s2/util/math/vector.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 502 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ab/usr/local/clang/include/absl/log/internal/check_op.hs:l498:::35i:n tnote: 1expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'2
8*   a498b | s l _ n o n niunltl  vo1u,t )i;n
t       | v                                                      ^2
, /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  cnote: hexpanded from macro 'absl_nonnull'a
r*   241a | #definien saebrstl__onro_nansuslilg n_,N oinnnsuelrlt
_      o| r                     ^_
assign_impl, &&, &&, true, faIn file included from ls2/s2shapeutil_edge_iterator.ccs:e20,:

In file included from       /usr/local/clang/include/absl/strings/str_cat.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
210 | /usr/local/clang/include/absl/strings/numbers.h : 118 : 56 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       118  |       . f i r s t ,   c o n s t _ i t e r a t o r   A B S L _ I N T E R N A L _ CaObMsMlA:):;u
i      n| t                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~1
28* a/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:s133l:_47n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll o  u133t | ) ; 
        |                                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eAfTiTnReI BaUbTsEl__CnAoPnTnUuRlElD __BNYo(ntnhuilsl)
)      ,|                       ^ 
                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {          In file included from  s2/s2shapeutil_edge_iterator.cc : 20 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 152 : 37 :\ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]               ^

/usr/local/clang/include/absl/container/internal/common.h  :15232 | :v9o:i dnote:  macro 'ABSL_INTERNAL_IF_false' defined hereP
utT   w32o | D#idgeiftisn(eu iAnBtS3L2__ItN TiE,R NcAhLa_rI*F _afbaslls_en(oinfn_uslalt ibsuffi)e;d
,       | .                                    ^.
.)/usr/local/clang/include/absl/base/nullability.h :_241_:V22A:_ Anote: Rexpanded from macro 'absl_nonnull'G
S_  _241
 |       #| d        ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::stIn file included from rs2/s2shapeutil_conversion.cci:n18g:
_In file included from v../src/s2/s2shapeutil_conversion.hi:e28w:
 In file included from t../src/s2/s2polygon.he:x29t:
,In file included from  /usr/local/clang/include/absl/container/flat_hash_map.hi:n45t:
1/usr/local/clang/include/absl/container/internal/raw_hash_map.h6:_211t:*3 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_non  n211u | l l  AvBaSlLu_eI,N
T      E| R                                                        ^N
AL/usr/local/clang/include/absl/base/nullability.h_:X241(:i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn,e  ianbsselr_tn_oonrn_ualsls i_gNno_ninmuplll,
       &| &                     ^,
 &&, true, true,
      |   ^
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2/s2shapeutil_edge_iterator.cc::13320::
52In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h  :13323 | :
 /usr/local/clang/include/absl/strings/numbers.h : 160 : 57 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _160I | NbToEoRlN AsLa_fAeT_TsRtIrBtUoT3E2__CbAaPsTeU(RaEbDs_lB:Y:(stthriisn)g)_,v i e w   t e x t ,   i n t 3 2 _ t *   a b s l _ n o\n
n      u| l                                                   ^l
 v/usr/local/clang/include/absl/container/internal/common.ha:l31u:e9,:
       | note:                                                         ^macro 'ABSL_INTERNAL_IF_true' defined here

/usr/local/clang/include/absl/base/nullability.h:   24131: | 22#:d enote: fexpanded from macro 'absl_nonnull'i
ne   241A | B#SdLe_fIiNnTeE RaNbAsLl__InFo_ntnruulel( i_fN_osnantuilslf
i      e| d                     ^,
 ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_conversion.cc:18:
In file included from   ../src/s2/s2shapeutil_conversion.h162: | 28b:
oIn file included from o../src/s2/s2polygon.hl: 29s:
aIn file included from f/usr/local/clang/include/absl/container/flat_hash_map.he:_45s:
t/usr/local/clang/include/absl/container/internal/raw_hash_map.hr:t211o:634:_ bwarning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s
e(abs  l211: | : s tArBiSnLg__IvNiTeEwR NtAeLx_tX,( iinnste6r4t__to*r _aabsssli_gnno,n niunlsle rvta_loure_,a
s      s| i                                                        ^g
n_/usr/local/clang/include/absl/base/nullability.hi:m241p:l22,:  &note: expanded from macro 'absl_nonnull'&
,   &241& | ,# dterfuien,e  tarbusel,_
n      o| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
ull   212_ | N o n n u l l 
        |                       ^ 
       .first, const_iteratorIn file included from  s2/s2shapeutil_edge_iterator.ccA:B20S:
LIn file included from _/usr/local/clang/include/absl/strings/str_cat.hI:N116T:
EIn file included from R/usr/local/clang/include/absl/strings/internal/stringify_sink.hN:A23L:
_/usr/local/clang/include/absl/strings/numbers.hC:O165M:M39A:) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 133 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
       133  |                   a bAsBlS:L:_iInNtT1E2R8N*A La_bAsTlT_RnonInBuUlTlE _vCaAlPuTeU,R EiDn_tB Yb(atshei)s;)
)      ,|                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a\b
s      l| _                                              ^~~~n
onnull _/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:o211n:n3u:l lwarning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|                      ^/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           In file included from ts2/s2shapeutil_edge_iterator.cch:i20s:
)In file included from )/usr/local/clang/include/absl/strings/str_cat.h): 116A:
BIn file included from S/usr/local/clang/include/absl/strings/internal/stringify_sink.hL:_23A:
T/usr/local/clang/include/absl/strings/numbers.hT:R166I:B57U:T Ewarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
IFET  I166M | Eb_oBoOlU NsDa f{e _ s t r t o u 8 _ b a s e ( a b s l : : s t r i n g _ v i e\w
       t| e               ^x
t,/usr/local/clang/include/absl/container/internal/common.h :u31i:n9t:8 _note: tmacro 'ABSL_INTERNAL_IF_true' defined here*
 ab   s31l | _#ndoenfniunlel  AvBaSlLu_eI,N
T      E| R                                                        ^N
AL_I/usr/local/clang/include/absl/base/nullability.hF:_241t:r22u:e (note: iexpanded from macro 'absl_nonnull'f
_s  a241t | i#sdfeifeidn,e  .a.b.s)l _info_nsnautlils f_iNeodn
n      u| l        ^l

      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:29In file included from :
s2/s2shapeutil_edge_iterator.ccIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h20::
45In file included from :
/usr/local/clang/include/absl/strings/str_cat.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h116::
211In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h3::23 :
warning: /usr/local/clang/include/absl/strings/numbers.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
168:59: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]211
 |   A  B168S | Lb_oIoNlT EsRaNfAeL__sXt(ritnosue1r6t__boars_ea(sasbisgln:,: sitnrsienrgt__voire_wa stseixgtn,_ iumipnlt,16_tb*s la_bnsoln_nnuolnln uelxlp rvtaelxute), 
{       |                                                            ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241\ | 
#      d| e                                  ^f
ine /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_no n&n&u,l l& &b,u ftfreure),
       t| r                                                    ^u
e,/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~22
: note: expanded from macro 'absl_nonnull'
  212 |    241  |  # d e f i n e   a b s l _ n o n.nfuilrls t_,N ocnonnusltl_
i      t| e                     ^r
ator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           thiIn file included from ss2/s2shapeutil_edge_iterator.cc):)20):
 In file included from A/usr/local/clang/include/absl/strings/str_cat.hB:S116L:
_In file included from A/usr/local/clang/include/absl/strings/internal/stringify_sink.hT:T23R:
I/usr/local/clang/include/absl/strings/numbers.hB:U199T:E5_:L Iwarning: F'diagnose_if' is a clang extension [-Wgcc-compat]E
TIM  E199_ | B O U N DA B{S L _ I N T E R N A L _ N E E D _ M I N _ S I Z E ( b u f f e\r
,       | k          ^~~~F
astToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       keyIn file included from _s2/s2shapeutil_edge_iterator.cca:r20g:
<In file included from K/usr/local/clang/include/absl/strings/str_cat.h>:&116&:
 In file included from k/usr/local/clang/include/absl/strings/internal/stringify_sink.h :A23B:
S/usr/local/clang/include/absl/strings/numbers.hL:_201I:N5T:E Rwarning: N'diagnose_if' is a clang extension [-Wgcc-compat]A
L_AT  T201R | I B U T EA_BCSALP_TIUNRTEEDR_NBAYL(_tNhEiEsD)_,M
I      N| _                                                         ^~~~S
IZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: /usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
252:63:   202warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]c
har*   a252b | s l _ n o n ncuolnls tF aksetyI_natrTgo<BKu>f&f ekr (AiBnStL6_4I_NtT EiR,N AcLh_aArT*T RaIbBsUlT_En_oCnAnPuTlUlR EbDu_fBfYe(rt)h
i      s| )                                                    ^,

      /usr/local/clang/include/absl/base/nullability.h| :                                                              ^~~~241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0/usr/local/clang/include/absl/container/internal/raw_hash_map.h): 267<: 75N:,  warning: \'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                  ^
  267 |         In file included from  s2/s2shapeutil_edge_iterator.cc : 20 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.hk:e204y:_7a:r gwarning: <type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]K
>&&   k204  | AcBhSaLr_*I NaTbEsRlN_AnLo_nAnTuTlRlI BFUaTsEt_ICnAtPTToUBRuEfDf_eBrY((utihnits6)4,_
t       | i                                                                          ^~~~,
 char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buIn file included from fs2/s2shapeutil_visit_crossing_edge_pairs.ccf:e18r:
,In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hk:F23a:
sIn file included from t../src/s2/s2crossing_edge_query.hT:o29B:
uIn file included from f../src/s2/r2.hf:e22r:
1In file included from 2../src/s2/util/math/vector.h8:S36i:
zIn file included from e../src/s2/base/logging.h):;21
:
      In file included from | /usr/local/clang/include/absl/log/check.h    ^:
37:
In file included from /usr/local/clang/include/absl/base/macros.h/usr/local/clang/include/absl/log/internal/check_impl.h::25121::
18:/usr/local/clang/include/absl/log/internal/check_op.h :503note: :expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'1
: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]251
 |   _  _503a | tAtBrSiLb_uLtOeG___I(N(TdEiRaNgAnLo_sCeH_EiCfK(__O_Pb_uIiMlPtLi(nC_hoebcjke_cNtE_,s i!z=e)(
O      b| j^,
 0)/usr/local/clang/include/absl/log/internal/check_op.h :<488 :N32,:  \note: 
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'      
|                  ^
  488 |   inline conIn file included from ss2/s2shapeutil_edge_iterator.cct:e20x:
pIn file included from r/usr/local/clang/include/absl/strings/str_cat.h :c116o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.ht: 23c:
h/usr/local/clang/include/absl/strings/numbers.ha:r208*: 7a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a208b | lceh anra*m ea#b#sIlm_pnlo(n n u l l   F a s t I n t T o B u f f e\r
(      u| i                               ^n
t12/usr/local/clang/include/absl/base/nullability.h8: 257i:,23 :c hnote: aexpanded from macro 'absl_nullable'r
*   a257b | s#ld_enfoinnneu lalb sblu_fnfuelrl)a
b      l| e      ^ 
_N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #define abslIn file included from _s2/s2shapeutil_visit_crossing_edge_pairs.ccn:o18n:
nIn file included from u../src/s2/s2shapeutil_visit_crossing_edge_pairs.hl:l23 :
_In file included from N../src/s2/s2crossing_edge_query.ho:n29n:
uIn file included from l../src/s2/r2.hl:
22      :
| In file included from                      ^../src/s2/util/math/vector.h
:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2shapeutil_edge_iterator.cc/usr/local/clang/include/absl/log/internal/check_impl.h::2021:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/str_cat.h::503116::
1In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/numbers.h
:208:/usr/local/clang/include/absl/log/internal/check_op.h53::489 :47warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  208 | c  h489a | r *   a b s lc_onnosntn uTl1l&  Fva1s,t IcnotnTsotB uTf2f&e rv(2u,i ncto1n2s8t  ic,h acrh*a ra*b salb_snlo_nnnounlnlu lelx pbrutfefxetr)) 
{       |                                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                                              ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128SizIn file included from es2/s2shapeutil_visit_crossing_edge_pairs.cc):;18
:
      In file included from | ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h    ^:
23:
In file included from /usr/local/clang/include/absl/base/macros.h../src/s2/s2crossing_edge_query.h::25129::
18In file included from :../src/s2/r2.h :22note: :
expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'In file included from 
../src/s2/util/math/vector.h:36:
  In file included from 251../src/s2/base/logging.h | : 21 :
_In file included from _/usr/local/clang/include/absl/log/check.ha:t37t:
rIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hb:u21t:
e/usr/local/clang/include/absl/log/internal/check_op.h_:_503(:(1d:i awarning: gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
os/usr/local/clang/include/absl/log/internal/check_op.he:_497i:f32(:_ _note: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'u
ilti  n497_ | o b jienclti_nsei zceo(nOsbtje,x p0r)  c<o nNs,t  \c
h      a| r                 ^*
 absl_nullable nIn file included from as2/s2shapeutil_edge_iterator.ccm:e20#:
#In file included from I/usr/local/clang/include/absl/strings/str_cat.hm:p116l:
(In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 215 : 7 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      215  | \c
h      a| r                               ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257F | a#sdteIfnitnTeo Baubfsfle_rn(uilnlta_btlyep e_ Niu,l
l      a| b      ^l
e
/usr/local/clang/include/absl/base/nullability.h      :| 241                      ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2shapeutil_visit_crossing_edge_pairs.cce:f18i:
nIn file included from e../src/s2/s2shapeutil_visit_crossing_edge_pairs.h :a23b:
sIn file included from l../src/s2/s2crossing_edge_query.h_:n29o:
nIn file included from n../src/s2/r2.hu:l22l:
 In file included from _../src/s2/util/math/vector.hN:o36n:
nIn file included from ull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_IIn file included from Ns2/s2shapeutil_edge_iterator.ccT:E20R:
NIn file included from A/usr/local/clang/include/absl/strings/str_cat.hL:_116A:
TIn file included from T/usr/local/clang/include/absl/strings/internal/stringify_sink.hR:I23B:
U/usr/local/clang/include/absl/strings/numbers.hT:E217_:C5A:P Twarning: U'diagnose_if' is a clang extension [-Wgcc-compat]R
ED_  B217Y | ( t h i sA)B,S
L      _| I                                                               ^~~~N
TERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2/s2shapeutil_edge_iterator.cc
:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:  116321:
 | In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h :k247e:y47_:a rwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]<
K>&&   247k | e y   A B S L _ I N T E R N A L _ A T T R I B U T E _ C A P T U R E D _ BiYn(tt_htiysp)e)*
       a| b                                                           ^~~~s
l_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
../src/s2/base/logging.hIn file included from :s2/s2shapeutil_edge_iterator.cc21::
20In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h37::
116In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h21::
23:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/strings/numbers.h503::3301::41 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:  498330: | 35 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
       498  |              i n t   v 1 ,   i n t   vi2n,t _ctoynpset*  cahbasrl*_ naobnsnlu_lnlo nonuutl)l  {e
x      p| r                                        ^t
ext/usr/local/clang/include/absl/base/nullability.h): 241{: 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                                  ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define ab66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::isl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_edge_iterator.cc:20:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nt128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2shapeutil_edge_iterator.cce: 20a:
b/usr/local/clang/include/absl/strings/str_cat.hs:l635_:n36o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _N  o635n | niunllli
n      e|                       ^v
oid StrAppend(std::string* abIn file included from ss2/s2shapeutil_conversion.ccl:_18n:
oIn file included from n../src/s2/s2shapeutil_conversion.hn:u28l:
lIn file included from )../src/s2/s2polygon.h :{34}:

In file included from       ../src/s2/mutable_s2shape_index.h| :                                   ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/base/nullability.h66::
241In file included from :/usr/local/clang/include/absl/container/internal/btree.h22::70 :
In file included from note: /usr/local/clang/include/absl/container/internal/layout.hexpanded from macro 'absl_nonnull':
198:
In file included from   /usr/local/clang/include/absl/strings/str_cat.h241: | 116#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hf:i23n:
e/usr/local/clang/include/absl/strings/numbers.h :a168b:s59l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   168_ | Nboononlu lsla
f      e| _                     ^s
trtou16_base(absl::string_viewIn file included from  s2/s2shapeutil_edge_iterator.cct:e20x:
t/usr/local/clang/include/absl/strings/str_cat.h,: 636u:i29n:t 1warning: 6type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
t* a  b636s | lv_oniodn nSutlrlA pvpaelnude(,s
t      d| :                                                          ^:
st/usr/local/clang/include/absl/base/nullability.hr:i241n:g22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli ndee satb,s lc_onnosntn uAlllp h_aNNounmn&ull
      |                       ^a
);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2shapeutil_conversion.ccn:e18 :
aIn file included from b../src/s2/s2shapeutil_conversion.hs:l28_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                     ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bIn file included from os2/s2shapeutil_edge_iterator.cco:l20 :
s/usr/local/clang/include/absl/strings/str_cat.ha:f637e:_29s:t rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
u32_  b637a | sveo(iadb sSlt:r:Asptpreinndg(_svtide:w: stterxitn,g *u ianbts3l2__nto*n naublsll _dneosntn,u lclo nvsatl uAel,p
h      a| N                                                          ^u
m&/usr/local/clang/include/absl/base/nullability.h :a241,:
22      :|                              ^
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from In file included from ../src/s2/s2polygon.hs2/s2shapeutil_edge_iterator.cc::3420:
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/str_cat.h::30639:
:In file included from 29/usr/local/clang/include/absl/container/btree_map.h:: 66:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h  :639198 | :
vIn file included from o/usr/local/clang/include/absl/strings/str_cat.hi:d116 :
SIn file included from t/usr/local/clang/include/absl/strings/internal/stringify_sink.hr:A23p:
p/usr/local/clang/include/absl/strings/numbers.he:n172d:(59s:t dwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
stri  n172g | *b oaobls ls_anfoen_nsutlrlt odue6s4t_,b acsoen(satb sAll:p:hsatNruimn&g _av,i
e      w|                              ^t
ex/usr/local/clang/include/absl/base/nullability.ht:,241 :u22i:n tnote: 6expanded from macro 'absl_nonnull'4
_t  *241  | a#bdself_innoen naublsll _vnaolnuneu,l
l       | _                                                          ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnulIn file included from ls2/s2shapeutil_edge_iterator.cc :_20N:
o/usr/local/clang/include/absl/strings/str_cat.hn:n641u:l29l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  641 | void StrAppend(stdIn file included from :s2/s2shapeutil_conversion.cc::s18t:
rIn file included from i../src/s2/s2shapeutil_conversion.hn:g28*:
 In file included from a../src/s2/s2polygon.hb:s34l:
_In file included from n../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl: 66d:
eIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht:,70 :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
 In file included from A/usr/local/clang/include/absl/strings/str_cat.hl:p116h:
aIn file included from N/usr/local/clang/include/absl/strings/internal/stringify_sink.hu:m23&:
 /usr/local/clang/include/absl/strings/numbers.ha:,175
:      41| :                            ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:   175note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l la b_sNlo:n:nuuilnlt
1      2| 8                     ^*
 absl_nonnull value, int base);
      |                                         ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_edge_iterator.cc::24120::
22:/usr/local/clang/include/absl/strings/str_cat.h :646note: :expanded from macro 'absl_nonnull'36
:   warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
#def  i646n | ei nalbisnle_ nvoonindu lSlt r_ANpopnennudl(ls
t      d| :                     ^:
string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_conversion.cc::24118::
22In file included from :../src/s2/s2shapeutil_conversion.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2polygon.h:34  :
241In file included from  | ../src/s2/mutable_s2shape_index.h#:d30e:
fIn file included from i/usr/local/clang/include/absl/container/btree_map.hn:e66 :
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hs:l70_:
nIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:n198u:
lIn file included from l/usr/local/clang/include/absl/strings/str_cat.h :_116N:
oIn file included from n/usr/local/clang/include/absl/strings/internal/stringify_sink.hn:u23l:
l/usr/local/clang/include/absl/strings/numbers.h
:      182| :                     ^7
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^In file included from 
s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from /usr/local/clang/include/absl/base/macros.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::25123::
18In file included from :../src/s2/s2crossing_edge_query.h :29note: :
In file included from expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'../src/s2/r2.h
:22:
In file included from ../src/s2/util/math/vector.h:  36251:
 | In file included from  ../src/s2/base/logging.h :_21_:
aIn file included from t/usr/local/clang/include/absl/log/check.ht:r37i:
bIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.ht:e21_:
_(/usr/local/clang/include/absl/log/internal/check_op.h(:d507i:a1g:n owarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
_if  (507_ | _AbBuSiLl_tLiOnG__oIbNjTeEcRtN_AsLi_zCeH(EOCbKj_,O P0_)I M<P LN(,C h\e
c      k| _                 ^G
T, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   In file included from is2/s2shapeutil_conversion.ccn:l18i:
nIn file included from e../src/s2/s2shapeutil_conversion.h :c28o:
nIn file included from s../src/s2/s2polygon.ht:e34x:
pIn file included from r../src/s2/mutable_s2shape_index.h :c30o:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.ht: 66c:
hIn file included from a/usr/local/clang/include/absl/container/internal/btree.hr:*70 :
aIn file included from b/usr/local/clang/include/absl/container/internal/layout.hs:l198_:
nIn file included from u/usr/local/clang/include/absl/strings/str_cat.hl:l116a:
bIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.he: 23n:
a/usr/local/clang/include/absl/strings/numbers.hm:e202#:#7I:m pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
      202  |  c h a r *   a b s l _ n o n\n
u      l| l                               ^ 
Fas/usr/local/clang/include/absl/base/nullability.ht:I257n:t23T:o Bnote: uexpanded from macro 'absl_nullable'f
fe  r257( | i#ndte6f4i_nte  ia,b sclh_anru*l laabbslle_ n_oNnunlullalb lbeu
f      f| e                      ^r
)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2shapeutil_visit_crossing_edge_pairs.ccexpanded from macro 'absl_nonnull':
18:
In file included from   ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h241: | 23#:
dIn file included from e../src/s2/s2crossing_edge_query.hf:i29n:
eIn file included from  ../src/s2/r2.ha:b22s:
lIn file included from _../src/s2/util/math/vector.hn:o36n:
nIn file included from u../src/s2/base/logging.hl:l21 :
_In file included from N/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl:
21      :
| /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: In file included from note: s2/s2shapeutil_conversion.ccexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
18:
In file included from ../src/s2/s2shapeutil_conversion.h  :48928 | :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from c../src/s2/mutable_s2shape_index.ho:n30s:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hT:166&:
 In file included from v/usr/local/clang/include/absl/container/internal/btree.h1:,70 :
cIn file included from o/usr/local/clang/include/absl/container/internal/layout.hn:s198t:
 In file included from T/usr/local/clang/include/absl/strings/str_cat.h2:&116 :
vIn file included from 2/usr/local/clang/include/absl/strings/internal/stringify_sink.h,: 23c:
o/usr/local/clang/include/absl/strings/numbers.hn:s202t: 53c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 ab  s202l | _cnhoanrn*u lalb selx_pnrotnenxutl)l  {F a s t I n\t
T      o| B                                              ^u
ff/usr/local/clang/include/absl/base/nullability.he:r241(:i22n:t 6note: 4expanded from macro 'absl_nonnull'_
t   i241, |  #cdheafri*n ea basbls_ln_onnonnunlull lb u_fNfoenrn)u
l      l| 
                                                    ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.hIn file included from :s2/s2shapeutil_visit_crossing_edge_pairs.cc30:18:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::6623:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2crossing_edge_query.h::7029:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h../src/s2/r2.h::19822:
In file included from /usr/local/clang/include/absl/strings/str_cat.h::
116In file included from :
../src/s2/util/math/vector.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h36::
23In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/strings/numbers.h21::
203In file included from :/usr/local/clang/include/absl/log/check.h5::37 :
In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.h'diagnose_if' is a clang extension [-Wgcc-compat]:
21:
/usr/local/clang/include/absl/log/internal/check_op.h:  507203: | 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]A
BS/usr/local/clang/include/absl/log/internal/check_op.hL:_497I:N32T:E Rnote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'A
L_NE  E497D | _ M IiNn_lSiInZeE (cbounfsfteerx,p rk FcaosntsTto Bcuhfafre*r Saibzsel)_;n
u      l| l    ^a
bl/usr/local/clang/include/absl/base/macros.he: 251n:a18m:e #note: #expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'I
mpl  (251  |      _ _ a t t r i b u t e _ _ ( ( d\i
a      g| n                               ^o
se/usr/local/clang/include/absl/base/nullability.h_:i257f:(23_:_ bnote: uexpanded from macro 'absl_nullable'i
lt  i257n | _#odbejfeicnte_ saibzsel(_Onbujl,l a0b)l e<  _NN,u l\l
a      b| l                 ^e

      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.ccIn file included from :s2/s2shapeutil_conversion.cc18::
18In file included from :
../src/s2/s2shapeutil_visit_crossing_edge_pairs.hIn file included from :../src/s2/s2shapeutil_conversion.h23::
28In file included from :
../src/s2/s2crossing_edge_query.hIn file included from :../src/s2/s2polygon.h29::
34In file included from :
../src/s2/r2.hIn file included from :../src/s2/mutable_s2shape_index.h22::
30In file included from :
../src/s2/util/math/vector.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h36::
66In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h21::
70In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h37::
198In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h21::
116/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 507/usr/local/clang/include/absl/strings/internal/stringify_sink.h::123::
 /usr/local/clang/include/absl/strings/numbers.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]204
:7/usr/local/clang/include/absl/log/internal/check_op.h:: 498:warning: 35type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  204 | c  h498a | r *   a b s li_nnto nvn1u,l li nFta svt2I,n tcToonBsutf fcehra(ru*i natb6s4l__tn oin,n uclhla re*x parbtselx_tn)o n{n u l l   b u f f e r ) 
        |        ^ 
 \/usr/local/clang/include/absl/base/nullability.h
:      241| :                                  ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute_In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:17:
In file included from ../src/s2/s2shape_nesting_query.h:26:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defi_n(e( daibasgln_onsoen_niufl(l_ __bNuoinlntuilnl_
o      b| j                     ^e
ct_size(Obj, 0) < NIn file included from ,s2/s2shapeutil_visit_crossing_edge_pairs.cc :\18:

In file included from       ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h| :                 ^23
:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :s2/s2shapeutil_conversion.cc514::1813:
:In file included from  ../src/s2/s2shapeutil_conversion.h:warning: 28type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2polygon.h:34  :
514In file included from  | ../src/s2/mutable_s2shape_index.hc:o30n:
sIn file included from t/usr/local/clang/include/absl/container/btree_map.h :c66h:
aIn file included from r/usr/local/clang/include/absl/container/internal/btree.h*: 70a:
bIn file included from s/usr/local/clang/include/absl/container/internal/layout.hl:_198n:
uIn file included from l/usr/local/clang/include/absl/strings/str_cat.hl:a116b:
lIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.h :C23h:
e/usr/local/clang/include/absl/strings/numbers.hc:k206s:t7r:c mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
alse  I206m | pclh(a
r      *|              ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note:  expanded from macro 'absl_nullable'F
as  t257I | n#tdTeofBiunfef earb(siln_tn1u2l8l aib,l ec h_aNru*l laabbslle_
n      o| n                      ^n
ull bIn file included from us2/s2shapeutil_visit_crossing_edge_pairs.ccf:f18e:
rIn file included from )../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:
23      :
| In file included from       ^../src/s2/s2crossing_edge_query.h
:29:
In file included from ../src/s2/r2.h:/usr/local/clang/include/absl/base/nullability.h22::
241In file included from :../src/s2/util/math/vector.h22::36 :
In file included from note: ../src/s2/base/logging.hexpanded from macro 'absl_nonnull':
21:
In file included from /usr/local/clang/include/absl/log/check.h  :24137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 518a:b17s:l _warning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnu  l518l |   _ N o ncnounlslt
       c| h                     ^a
r* absl_nullableIn file included from  s2/s2shapeutil_conversion.ccs:118,:
 In file included from c../src/s2/s2shapeutil_conversion.ho:n28s:
tIn file included from  ../src/s2/s2polygon.hc:h34a:
rIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:b70l:
eIn file included from  /usr/local/clang/include/absl/container/internal/layout.hs:2198,:

In file included from       /usr/local/clang/include/absl/strings/str_cat.h| :                ^116
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/stringify_sink.h::25723::
23/usr/local/clang/include/absl/strings/numbers.h:: 206:note: 52expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257
 | #de  f206i | nceh aarb*s la_bnsull_lnaobnlneu l_lN uFlalsatbIlnet
T      o| B                      ^u
ffer(iIn file included from ns2/s2shapeutil_visit_crossing_edge_pairs.cct:1182:
8In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:,23 :
cIn file included from h../src/s2/s2crossing_edge_query.ha:r29*:
 In file included from a../src/s2/r2.hb:s22l:
_In file included from n../src/s2/util/math/vector.ho:n36n:
uIn file included from l../src/s2/base/logging.hl: 21b:
uIn file included from f/usr/local/clang/include/absl/log/check.hf:e37r:
)In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                                   ^:

/usr/local/clang/include/absl/log/internal/check_op.h:518/usr/local/clang/include/absl/base/nullability.h::47241:: 22:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    518241 |  |  # d e fcionnes ta bcshla_rn*o nanbuslll_ n_uNlolnanbullel 
s      1| ,                     ^ 
const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullIn file included from as2/s2shapeutil_conversion.ccb:l18e:
 In file included from _../src/s2/s2shapeutil_conversion.hN:u28l:
lIn file included from a../src/s2/s2polygon.hb:l34e:

In file included from       ../src/s2/mutable_s2shape_index.h| :                      ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.hs2/s2shapeutil_visit_crossing_edge_pairs.cc::7018:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::19823:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2crossing_edge_query.h::11629:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/r2.h::2322:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/util/math/vector.h::20736::
5In file included from :../src/s2/base/logging.h :21warning: :
'diagnose_if' is a clang extension [-Wgcc-compat]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h207: | 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 519A:B17S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TE  R519N | A L _ N EcEoDn_sMtI Nc_hSaIrZ*E (abbusflf_enro,n nkuFlals teTxopBrutfefxetr)1;2
8      S| i                ^z
e)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22    ^:
 note: /usr/local/clang/include/absl/base/macros.hexpanded from macro 'absl_nonnull':
251  :24118 | :# dnote: eexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'f
ine   251a | b s l___naotntnruilblu t_eN_o_n(n(udlila
g      n| o                     ^s
e_if(__builtiIn file included from ns2/s2shapeutil_visit_crossing_edge_pairs.cc_:o18b:
jIn file included from e../src/s2/s2shapeutil_visit_crossing_edge_pairs.hc:t23_:
sIn file included from i../src/s2/s2crossing_edge_query.hz:e29(:
OIn file included from b../src/s2/r2.hj:,22 :
0In file included from )../src/s2/util/math/vector.h :<36 :
NIn file included from ,../src/s2/base/logging.h :\21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                 ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 520s2/s2shapeutil_conversion.cc | :c18o:
nIn file included from s../src/s2/s2shapeutil_conversion.ht: 28c:
hIn file included from a../src/s2/s2polygon.hr:*34 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l30_:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66a:
bIn file included from l/usr/local/clang/include/absl/container/internal/btree.he: 70C:
hIn file included from e/usr/local/clang/include/absl/container/internal/layout.hc:k198s:
tIn file included from r/usr/local/clang/include/absl/strings/str_cat.hc:a116s:
eIn file included from c/usr/local/clang/include/absl/strings/internal/stringify_sink.hm:p23f:
a/usr/local/clang/include/absl/strings/numbers.hl:s208e:I7m:p lwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |             ^
  208/usr/local/clang/include/absl/base/nullability.h | :c257h:a23r:*  note: aexpanded from macro 'absl_nullable'b
sl  _257n | o#ndneufliln eF aasbtsIln_tnTuolBluafbfleer (_uNiunltl1a2b8l ei
,       | c                      ^h
ar* In file included from as2/s2shapeutil_visit_crossing_edge_pairs.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_visit_crossing_edge_pairs.ho:n23n:
uIn file included from l../src/s2/s2crossing_edge_query.hl: 29b:
uIn file included from f../src/s2/r2.hf:e22r:
)In file included from 
../src/s2/util/math/vector.h      :| 36      ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 521#:d17e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 ab  s521l | _ n o n ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nullable sIn file included from 1s2/s2shapeutil_conversion.cc,: 18c:
oIn file included from n../src/s2/s2shapeutil_conversion.hs:t28 :
cIn file included from h../src/s2/s2polygon.ha:r34*:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:
aIn file included from b/usr/local/clang/include/absl/container/internal/btree.hl:e70 :
sIn file included from 2/usr/local/clang/include/absl/container/internal/layout.h,:
198      :
| In file included from                 ^/usr/local/clang/include/absl/strings/str_cat.h
:116/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/strings/internal/stringify_sink.h::2323::
 /usr/local/clang/include/absl/strings/numbers.hnote: :expanded from macro 'absl_nullable'208
:53:   257 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n208e |  cahbasrl*_ naublslla_bnloen n_uNlull lFaabslteI
n      t| T                      ^o
Buffer(uiIn file included from ns2/s2shapeutil_visit_crossing_edge_pairs.cct:1182:
8In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:,23 :
cIn file included from h../src/s2/s2crossing_edge_query.ha:r29*:
 In file included from a../src/s2/r2.hb:s22l:
_In file included from n../src/s2/util/math/vector.ho:n36n:
uIn file included from l../src/s2/base/logging.hl: 21b:
uIn file included from f/usr/local/clang/include/absl/log/check.hf:e37r:
)In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                                                    ^:

/usr/local/clang/include/absl/log/internal/check_op.h:521/usr/local/clang/include/absl/base/nullability.h::47241:: 22:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
    521241 |  |  # d e fcionnes ta bcshla_rn*o nanbuslll_ n_uNlolnanbullel 
s      1| ,                     ^ 
const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defiIn file included from ns2/s2shapeutil_conversion.cce: 18a:
bIn file included from s../src/s2/s2shapeutil_conversion.hl:_28n:
uIn file included from l../src/s2/s2polygon.hl:a34b:
lIn file included from e../src/s2/mutable_s2shape_index.h :_30N:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl:a66b:
lIn file included from e/usr/local/clang/include/absl/container/internal/btree.h
:      70| :
                      ^In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hs2/s2shapeutil_visit_crossing_edge_pairs.cc::2318:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::20923::
5In file included from :../src/s2/s2crossing_edge_query.h :29warning: :
'diagnose_if' is a clang extension [-Wgcc-compat]In file included from 
../src/s2/r2.h:22:
In file included from   ../src/s2/util/math/vector.h209: | 36 :
 In file included from  ../src/s2/base/logging.h :A21B:
SIn file included from L/usr/local/clang/include/absl/log/check.h_:I37N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.hR:N21A:
L/usr/local/clang/include/absl/log/internal/check_op.h_:N522E:E17D:_ Mwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
_S  I522Z | E ( b u fcfoenrs,t  kcFhaasrt*T oaBbusflf_enro1n2n8uSlilz ee)x;p
r      t| e    ^x
t)/usr/local/clang/include/absl/base/macros.h;:
251      :| 18                ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE':
241:22:   251 | note:  expanded from macro 'absl_nonnull' 
__  a241t | t#rdiebfuitnee_ _a(b(sdli_angonnonsuel_li f_(N_o_nbnuuilllt
i      n| _                     ^o
bject_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:32:
/usr/local/clang/include/absl/types/span.h:801:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknowIn file included from ns2/s2shapeutil_conversion.cc :_18N:
uIn file included from l../src/s2/s2shapeutil_conversion.hl:_28u:
nIn file included from s../src/s2/s2polygon.hp:e34c:
iIn file included from f../src/s2/mutable_s2shape_index.hi:e30d:

In file included from       /usr/local/clang/include/absl/container/btree_map.h| :                                 ^66
:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_get_reference_point.cc:18  :
635In file included from  | ../src/s2/s2shapeutil_get_reference_point.hi:n21l:
iIn file included from n../src/s2/s2shape.he: 25v:
oIn file included from i../src/s2/s2coder.hd: 23S:
tIn file included from r/usr/local/clang/include/absl/status/status.hA:p67p:
eIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hd:(29s:
tIn file included from d/usr/local/clang/include/absl/strings/cord.h:::94s:
tIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.hi:n31g:
*/usr/local/clang/include/absl/synchronization/mutex.h :a499b:s35l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l499) |   { }v
o      i| d                                   ^ 
Ena/usr/local/clang/include/absl/base/nullability.hb:l241e:D22e:b unote: gexpanded from macro 'absl_nonnull'L
og  (241c | o#ndsetf icnhea ra*b salb_snlo_nnnuulllla b_lNeo nnnaumlel)
;      
|                            ^| 
                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullablnnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& coen di)n
v      a| r                                  ^i
ant/usr/local/clang/include/absl/base/nullability.h):(241v:o22i:d *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibniel iatbys_lu_nnkonnonwunl)l, 
_      N| o             ^n
null
/usr/local/clang/include/absl/base/nullability.h      :| 257                     ^:
23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: In file included from warning: s2/s2shapeutil_visit_crossing_edge_pairs.cctype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h  :48923 | :
 In file included from  ../src/s2/s2crossing_edge_query.h : 29 :
 In file included from v../src/s2/r2.ho:i22d:
 In file included from (../src/s2/util/math/vector.h*:a36b:
sIn file included from l../src/s2/base/logging.h_:n22u:
lIn file included from l/usr/local/clang/include/absl/log/log.ha:b209l:
eIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hi:n20v:
aIn file included from r/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:a63n:
t)/usr/local/clang/include/absl/log/internal/vlog_config.h(:v49o:i37d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_nu   l49l | aibnitl iRteyg_iusntkenroAwnnd)I,n
i      t| i                                            ^a
li/usr/local/clang/include/absl/base/nullability.hz:e289(:V34L:o gnote: Sexpanded from macro 'absl_nullability_unknown'i
te  *289  | a#bdself_iIn file included from nns2/s2shapeutil_get_reference_point.ccoe:n 18na:
ubIn file included from ls../src/s2/s2shapeutil_get_reference_point.hll: _21nv:
u)In file included from l;../src/s2/s2shape.hl
:a      25b| :
In file included from i                                    ^../src/s2/s2coder.hl
:i23t:
yIn file included from _/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.hu::n24167k::
n22In file included from o:/usr/local/clang/include/absl/status/internal/status_internal.hw :nnote: 29expanded from macro 'absl_nonnull' :
_
In file included from N/usr/local/clang/include/absl/strings/cord.h  u:l24194l | :
_#In file included from ud/usr/local/clang/include/absl/strings/internal/cordz_info.hne:sf31pi:
en/usr/local/clang/include/absl/synchronization/mutex.hec: i710fa:ib74es:dl 
_      warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]| o
                                 ^n
nul  l710  | _ N oenxnpulIn file included from lis2/s2shapeutil_coding.cccl:i
18t      :
 | In file included from W                     ^../src/s2/s2shapeutil_coding.hr
:i44t:
eIn file included from r../src/s2/s2coder.hM:u23t:
eIn file included from x/usr/local/clang/include/absl/status/status.hL:o67:
cIn file included from k/usr/local/clang/include/absl/status/internal/status_internal.h(:M29u:
tIn file included from e/usr/local/clang/include/absl/strings/cord.hx:&94 :
mIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.h :A31B:
S/usr/local/clang/include/absl/synchronization/mutex.hL:In file included from _490s2/s2shapeutil_visit_crossing_edge_pairs.ccI::N13T18:E:
 Rwarning: In file included from Ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]A../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
L:_23  A:
490TIn file included from  | T ../src/s2/s2crossing_edge_query.hR I: B 29U T:
 EvIn file included from _oC../src/s2/r2.hiAd:P*T22 Ua:
RbEIn file included from sDl../src/s2/util/math/vector.h__:BnY36u(l:
tlhIn file included from aib../src/s2/base/logging.hsi):l)i22
t:
      yIn file included from | _/usr/local/clang/include/absl/log/log.h                                                                         ^~~~u:
n209k:
nIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hw:n20 :
aIn file included from r/usr/local/clang/include/absl/log/absl_vlog_is_on.hg:)63;:

/usr/local/clang/include/absl/log/internal/vlog_config.h      :| 63            ^:
43/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/base/nullability.h: :718289warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:35
34::     warning: note: 63expanded from macro 'absl_nullability_unknown'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 

      289e718 | x | # pd leefixipcnliei tc acibtos nlWs_rtneixutplelrraM buiVLolgiSttieyxt_Lueonc(kknc(oMownunts e_txN* u clahlb_asulrn_*snp oenacnibufslille_ dmn
uo      )n| 
n                                 ^      u
| l                                  ^l
 f)/usr/local/clang/include/absl/base/nullability.h
:      241| :                                          ^22
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:In file included from 22  s2/s2shapeutil_coding.cc:241:  | 18note: #:
dexpanded from macro 'absl_nonnull'In file included from e
../src/s2/s2shapeutil_coding.hf:i  44n241:
e | In file included from  #../src/s2/s2coder.had:be23sf:
iln_en oIn file included from na/usr/local/clang/include/absl/status/status.hnb:us67ll:
l_In file included from  n/usr/local/clang/include/absl/status/internal/status_internal.h_o:nN29on:
nuIn file included from nl/usr/local/clang/include/absl/strings/cord.hlu:l 94l_:

NIn file included from       o/usr/local/clang/include/absl/strings/internal/cordz_info.h| n:                     ^n31
u:
l/usr/local/clang/include/absl/synchronization/mutex.hl:
499      :| 35                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebIn file included from us2/s2shapeutil_get_reference_point.ccg:L18o:
gIn file included from (../src/s2/s2shapeutil_get_reference_point.hc:o21n:
sIn file included from t../src/s2/s2shape.h :c25h:
aIn file included from r../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:a29b:
lIn file included from e/usr/local/clang/include/absl/strings/cord.h :n94a:
mIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h):;31
:
      | /usr/local/clang/include/absl/synchronization/mutex.h                                  ^:
722:74/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
In file included from note: s2/s2shapeutil_visit_crossing_edge_pairs.ccexpanded from macro 'absl_nullable':  
18722:
   | In file included from 257 ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h |  :#edx23epf:
liiIn file included from nc../src/s2/s2crossing_edge_query.hei: ta29 bW:
srIn file included from li../src/s2/r2.h_tn:eur22lM:
luIn file included from atb../src/s2/util/math/vector.helx:eL 36o_:
cNkIn file included from u(l../src/s2/base/logging.hMlu:at22bel:
xeIn file included from &
/usr/local/clang/include/absl/log/log.h       :m| u209                      ^ :

AIn file included from B/usr/local/clang/include/absl/log/internal/log_impl.hS:L20_:
IIn file included from N/usr/local/clang/include/absl/log/absl_vlog_is_on.hT:E63R:
N/usr/local/clang/include/absl/log/internal/vlog_config.hA:L96_:A60T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE_   C96A | P T UfRrEiDe_nBdY (itnhti sl)o,g
_      In file included from i| s2/s2shapeutil_coding.ccn                                                                         ^~~~:t
18e:
rIn file included from n../src/s2/s2shapeutil_coding.ha:l44::
:In file included from R../src/s2/s2coder.he:g23i:
sIn file included from t/usr/local/clang/include/absl/status/status.he:r67A:
nIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.hI:/usr/local/clang/include/absl/synchronization/mutex.hn29:i:
731tIn file included from :i/usr/local/clang/include/absl/strings/cord.h35a::l94 iwarning: :
ztype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from e
/usr/local/clang/include/absl/strings/internal/cordz_info.h(:V31  L:
731o/usr/local/clang/include/absl/synchronization/mutex.h | g: S549 i:et40xe:p* lwarning:  itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ca
ibts   l549W_ | r ni otsentrnaMutuiltlce  xvvLo)oic;dk 
(IM      nu| ct                                                           ^re
exm/usr/local/clang/include/absl/base/nullability.h*e :nat241bSs:yln22_c:nho Snenote: nmuexpanded from macro 'absl_nonnull'(l
Mlu   tm241eu | x,#*  cdaobenssflt_i nnCooenn nduailbtlsi olmn_u&n, o
cn      on| nu                                       ^dl
l) /usr/local/clang/include/absl/base/nullability.h_
:N      241o| :n                                  ^22n
:u /usr/local/clang/include/absl/base/nullability.hlnote: :lexpanded from macro 'absl_nonnull'241

:      22  | :241                     ^  | 
note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(MIn file included from us2/s2shapeutil_get_reference_point.cct:e18x:
*In file included from  ../src/s2/s2shapeutil_get_reference_point.ha:b21s:
lIn file included from _../src/s2/s2shape.hn:o25n:
nIn file included from u../src/s2/s2coder.hl:l23 :
mIn file included from u/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from                                        ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:  801241: | 20#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a  b801s | l _ nCoonnnduiltli o_nN(obnonoull l(
*      a| b                     ^s
l_nonnull In file included from fs2/s2shapeutil_coding.ccu:n18c:
)In file included from (../src/s2/s2shapeutil_coding.hv:o44i:
dIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:In file included from b29is2/s2shapeutil_visit_crossing_edge_pairs.cc:
l:In file included from i18/usr/local/clang/include/absl/strings/cord.ht:
:yIn file included from 94_../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:
u:In file included from n23/usr/local/clang/include/absl/strings/internal/cordz_info.hk:
:nIn file included from 31o../src/s2/s2crossing_edge_query.h:
w:/usr/local/clang/include/absl/synchronization/mutex.hn29:):
552,In file included from :
../src/s2/r2.h64      ::| 22                    ^:
warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/util/math/vector.h/usr/local/clang/include/absl/base/nullability.h:  :36552241:
 | : In file included from 22 ../src/s2/base/logging.h: :  22note:  :
expanded from macro 'absl_nonnull' In file included from 
 /usr/local/clang/include/absl/log/log.h    :241 209 |  :
# In file included from d e/usr/local/clang/include/absl/log/internal/log_impl.h f: i 20n :
e  In file included from  a/usr/local/clang/include/absl/log/absl_vlog_is_on.h b :s l63 _:
 n/usr/local/clang/include/absl/log/internal/vlog_config.h o :n n119 u :l l15  : _b Nawarning: osntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]en
_uiln  lt
119e      r | | n                     ^ a
 lc:o:nPsIn file included from ets2/s2shapeutil_get_reference_point.ccr :cT18hh:
raIn file included from er../src/s2/s2shapeutil_get_reference_point.ha*:d 21Sa:
ybIn file included from ns../src/s2/s2shape.hlc:_h25n*:
 oIn file included from an../src/s2/s2coder.hnb:su23ll:
_lIn file included from n /usr/local/clang/include/absl/status/status.hoc:no67nn:
suIn file included from lt/usr/local/clang/include/absl/status/internal/status_internal.hl : f29wi:
,lIn file included from 
e/usr/local/clang/include/absl/strings/cord.h      _:| ;94                                                               ^
:

      In file included from | /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h              ^::
24131::
22/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::: 241note: 801:expanded from macro 'absl_nonnull':22
45:  : 241  | note: warning: #type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'd
e
f  i801n   | e 241   | aCb#osdnelfd_iintonine naublsll __nNoonnnnuullll 
_      | N                     ^o
nnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynoch*n (abbosoll_ n(o*nanbuslll_ nwo)n;n
u      l| l                                     ^ 
fu/usr/local/clang/include/absl/base/nullability.hn:c241):(22v:o inote: dexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneuflilnaeb ialbistly__nuonnknnuolwln )_,N
o      n| n                                            ^u
ll
      | /usr/local/clang/include/absl/base/nullability.h                     ^:
289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nuIn file included from ls2/s2shapeutil_coding.ccl:a18b:
iIn file included from l../src/s2/s2shapeutil_coding.hi:t44y:
_In file included from u../src/s2/s2coder.hn:k23n:
oIn file included from w/usr/local/clang/include/absl/status/status.hn: 67_:
NIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29_:
uIn file included from n/usr/local/clang/include/absl/strings/cord.hs:p94e:
cIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hf:i31e:
d/usr/local/clang/include/absl/synchronization/mutex.h
:      585| :                                 ^20
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(In file included from Ms2/s2shapeutil_get_reference_point.ccu:H18o:
wIn file included from  ../src/s2/s2shapeutil_get_reference_point.ha:b21s:
lIn file included from _../src/s2/s2shape.hn:o25n:
nIn file included from u../src/s2/s2coder.hl:l23 :
hIn file included from o/usr/local/clang/include/absl/status/status.hw:)67;:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h/:/29 :
uIn file included from s/usr/local/clang/include/absl/strings/cord.he:d94 :
fIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hr: 31C:
o/usr/local/clang/include/absl/synchronization/mutex.hn:d802V:a19r:- >warning: Mtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]u
tex   802t | r a n s f e r 
        |                     ^ 
 v/usr/local/clang/include/absl/base/nullability.ho:i241d:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#adbeifliintey _aubnskln_onwonn naurlgl) ;_
N      o| n                  ^n
u/usr/local/clang/include/absl/base/nullability.hl:l289
:      34| :                     ^ 
note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nIn file included from us2/s2shapeutil_coding.ccl:l18a:
bIn file included from i../src/s2/s2shapeutil_coding.hl:i44t:
yIn file included from _../src/s2/s2coder.hu:n23k:
nIn file included from o/usr/local/clang/include/absl/status/status.hw:n67 :
_In file included from N/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
_In file included from u/usr/local/clang/include/absl/strings/cord.hn:s94p:
eIn file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.hi:f31i:
e/usr/local/clang/include/absl/synchronization/mutex.hd:
586      :| 43                                 ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_interIn file included from ns2/s2shapeutil_get_reference_point.cca:l18::
:In file included from P../src/s2/s2shapeutil_get_reference_point.he:r21T:
hIn file included from r../src/s2/s2shape.he:a25d:
SIn file included from y../src/s2/s2coder.hn:c23h:
*In file included from  /usr/local/clang/include/absl/status/status.ha:b67s:
lIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hn:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                                          ^:
31:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/synchronization/mutex.h::241814::2220::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #814d | e f iCnoen daibtsilo_nn(obnonoull l( *_aNbosnln_unloln
n      u| l                     ^l
 func)(T* absl_nullIn file included from as2/s2shapeutil_coding.ccb:i18l:
iIn file included from t../src/s2/s2shapeutil_coding.hy:_44u:
nIn file included from k../src/s2/s2coder.hn:o23w:
nIn file included from )/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from                    ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:590  :24140 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine   590a | b s le_xnpolnincuiltl  M_uNtoenxn(ucloln
s      t|                       ^v
olatileIn file included from  s2/s2shapeutil_get_reference_point.ccM:u18t:
eIn file included from x../src/s2/s2shapeutil_get_reference_point.h*: 21a:
bIn file included from s../src/s2/s2shape.hl:_25n:
uIn file included from l../src/s2/s2coder.hl:a23b:
lIn file included from e/usr/local/clang/include/absl/status/status.h :/67*:
iIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.hn:o29r:
eIn file included from d/usr/local/clang/include/absl/strings/cord.h*:/94):
 In file included from {/usr/local/clang/include/absl/strings/internal/cordz_info.h}:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h                                       ^:
814:42/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nullable'  
814 |    257  | C#odnedfiitnieo na(bbsolo_ln u(l*laabbslle_ n_oNnunlullalb lfeu
n      c| )                      ^(
T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.hIn file included from :s2/s2shapeutil_contains_brute_force.cc23::
18In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :../src/s2/s2shapeutil_contains_brute_force.h67::
21In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2point.h29::
25In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/util/coding/coder.h94::
36In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/base/casts.h31::
34:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/log.h831::20946:
:In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h:warning: 20type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
  831 | /usr/local/clang/include/absl/log/internal/vlog_config.h : 49 : 37 :  twarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
enam   e49  | aibnstl :R:etgyipse_itdeernAtnidtIyn<iTt>i:a:ltiyzpee(*V LaIn file included from obgs2/s2shapeutil_coding.ccsS:li18_t:
neuIn file included from *l ../src/s2/s2shapeutil_coding.hla:ab44bs:
ilIn file included from l_../src/s2/s2coder.hi:nt23oyn:
_nuIn file included from un/usr/local/clang/include/absl/status/status.hlkl:n 67ov:
w)In file included from ;n
/usr/local/clang/include/absl/status/internal/status_internal.h
      :      | 29|                                     ^                                             ^:


In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h94:::
289241In file included from ::/usr/local/clang/include/absl/strings/internal/cordz_info.h3422:::31  :
note: note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nullability_unknown'expanded from macro 'absl_nonnull':

624:68    :289241  |  | warning: ##'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]dd
eeffiinn  ee624   | aab b sselxlp__nlnioucnilnluatlbl  Miu_lNitotnenyux_lLuolnck
kn(      oM| wu                     ^tne
 x_&N umlIn file included from us2/s2shapeutil_visit_crossing_edge_pairs.cc :A18B:
SIn file included from L../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:I23N:
TIn file included from E../src/s2/s2crossing_edge_query.hR:N29A:
In file included from LIn file included from s2/s2shapeutil_contains_brute_force.cc_../src/s2/r2.h:A:18T22:
T:
In file included from RIn file included from ../src/s2/s2shapeutil_contains_brute_force.hI../src/s2/util/math/vector.h:B:21U36:
T:
In file included from EIn file included from ../src/s2/s2point.h_../src/s2/base/logging.h:C:25A22:
P:
In file included from TIn file included from ../src/s2/util/coding/coder.hU/usr/local/clang/include/absl/log/log.h:R:36E209:
D:
In file included from _In file included from ../src/s2/base/casts.hB/usr/local/clang/include/absl/log/internal/log_impl.h:Y:34(20:
t:
In file included from hIn file included from /usr/local/clang/include/absl/log/log.hi/usr/local/clang/include/absl/log/absl_vlog_is_on.h:s:209)63:
):
In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h      /usr/local/clang/include/absl/log/internal/vlog_config.h:| :20                                                                   ^~~~133:

:In file included from 37/usr/local/clang/include/absl/log/absl_vlog_is_on.h:: 63:
warning: /usr/local/clang/include/absl/log/internal/vlog_config.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
133 | i   n63t |   R eegxipsltiecriA/usr/local/clang/include/absl/synchronization/mutex.htn: d635cI:on29ni:st tiwarning: eaxtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lp
ri zVe  L(635oVg | SL i oteegx(Spcilotinecsi*tt   caMhbuastrle*_x Lnaoobcnskln(_unMolunltne uxvl*)l ; af
b)s      
l|       _                                    ^| n                                          ^
o
nn/usr/local/clang/include/absl/base/nullability.hu/usr/local/clang/include/absl/base/nullability.h:l:l241241 ::m2222u::)   note: ABSLexpanded from macro 'absl_nonnull'note: _
expanded from macro 'absl_nonnull'E
  X241  C | L241#Ud | Se#IfdVieEn_feL iOanCbKes_l F_aUnbNoCsnTlnI_uOnlNlo( mn_unN)uo
ln      nl| u                            ^ l
l_
N/usr/local/clang/include/absl/base/nullability.h      o:241:nn22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_noIn file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:29:
In file included from ../src/s2/r2.h:22:
In file included from ../src/s2/util/math/vector.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
l_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de| fine                     ^ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nu  l851l |   _ N o n n ublolo
l       | (                     ^a
bslIn file included from :s2/s2shapeutil_contains_brute_force.cc::t18y:
pIn file included from e../src/s2/s2shapeutil_contains_brute_force.h_:i21d:
eIn file included from n../src/s2/s2point.ht:i25t:
yIn file included from <../src/s2/util/coding/coder.hT:>36::
:In file included from t../src/s2/base/casts.hy:p34e:
:In file included from :/usr/local/clang/include/absl/log/log.h*: 209a:
bIn file included from s/usr/local/clang/include/absl/log/internal/log_impl.hl:_20n:
oIn file included from n/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:u63l:
l/usr/local/clang/include/absl/log/internal/vlog_config.h :m96e:t60h:o dwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](In file included from 
)s2/s2shapeutil_coding.cc
:      18| :
                                               ^In file included from 96
../src/s2/s2shapeutil_coding.h | :/usr/local/clang/include/absl/base/nullability.h 44 ::
f241In file included from r:../src/s2/s2coder.hi22:e:23n d:
note:  In file included from expanded from macro 'absl_nonnull'i/usr/local/clang/include/absl/status/status.h
n:t67   :
241lIn file included from  | o#/usr/local/clang/include/absl/status/internal/status_internal.hdge:_f29ii:
nnIn file included from et/usr/local/clang/include/absl/strings/cord.he ra:nb94as:
llIn file included from :_/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o:Rn31en:
gu/usr/local/clang/include/absl/synchronization/mutex.hil:ls641 t_:eN68orn:An nuwarning: ld'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]lI

n      i| t                     ^i
a  l641i | z e (eVxLpolgiSciitte *M uatbesxlL_oncoIn file included from kns2/s2shapeutil_get_reference_point.cc(n:Mu18ult:
leIn file included from x &v../src/s2/s2shapeutil_get_reference_point.h ):m;21u
:
       In file included from A| ../src/s2/s2shape.hB                                                           ^:S
25L:
_In file included from /usr/local/clang/include/absl/base/nullability.hI../src/s2/s2coder.h:N:241T23:E:
22RIn file included from :N/usr/local/clang/include/absl/status/status.h A:note: L67expanded from macro 'absl_nonnull'_:

AIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.h  T:241R29 | I:
#BIn file included from dU/usr/local/clang/include/absl/strings/cord.heT:fE94i_:
nCIn file included from eA/usr/local/clang/include/absl/strings/internal/cordz_info.h P:aT31bU:
sR/usr/local/clang/include/absl/synchronization/mutex.hlE_:Dn_855oB:nY34n(:ut lhwarning: litype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] s
_)N,o
  n      855n|  | u                                                                   ^~~~ l 
le
x      p| l                     ^i
cit Condition(const bool* absl_nonnull co/usr/local/clang/include/absl/synchronization/mutex.hn:d649):;29
:       | warning:                                  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241:  22649: |   note:  expanded from macro 'absl_nonnull'e
xp  l241i | c#idte fMiuntee xaLbosclk_(nMountneuxl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2shapeutil_get_reference_point.ccn:e18 :
aIn file included from b../src/s2/s2shapeutil_get_reference_point.hs:l21_:
nIn file included from o../src/s2/s2shape.hn:n25u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                     ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2shapeutil_contains_brute_force.cc | :#18d:
In file included from eIn file included from fs2/s2shapeutil_coding.cc../src/s2/s2shapeutil_contains_brute_force.hi::n1821e:
:
 In file included from In file included from a../src/s2/s2shapeutil_coding.h../src/s2/s2point.hb::s4425l:
:
_In file included from In file included from n../src/s2/s2coder.h../src/s2/util/coding/coder.ho::n2336n:
:
uIn file included from In file included from l/usr/local/clang/include/absl/status/status.h../src/s2/base/casts.hl:: 6734_:
:
NIn file included from oIn file included from /usr/local/clang/include/absl/status/internal/status_internal.hn/usr/local/clang/include/absl/log/log.h:n:29u209:
l:
In file included from lIn file included from /usr/local/clang/include/absl/strings/cord.h
/usr/local/clang/include/absl/log/internal/log_impl.h:      :94| 20:
                     ^:
In file included from 
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/absl_vlog_is_on.h::3163:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/vlog_config.h::670119::7415::  warning: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  119 |   const char* absl_nonnulIn file included from ls2/s2shapeutil_get_reference_point.cc :c18o:
nIn file included from s../src/s2/s2shapeutil_get_reference_point.ht: 21f:
iIn file included from l../src/s2/s2shape.he:_25;:

In file included from       ../src/s2/s2coder.h| :              ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
In file included from note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f922i:n48e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_no  n922n | u l ls t_aNtoincn ublolo
l       | G                     ^u
aranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.hs2/s2shapeutil_conversion.cc:18In file included from :
s2/s2shapeutil_coding.ccIn file included from :../src/s2/s2shapeutil_conversion.h18::
28In file included from :
../src/s2/s2shapeutil_coding.hIn file included from :../src/s2/s2polygon.h44::
34In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/mutable_s2shape_index.h23::
30In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h67::
67In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 523/usr/local/clang/include/absl/strings/cord.h::3194::
 In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hwarning: :31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]523
 |       801  |      C o n dIn file included from  is2/s2shapeutil_contains_brute_force.cc t: i18 o:
n In file included from ( ../src/s2/s2shapeutil_contains_brute_force.hb :of21oa:
llIn file included from  s../src/s2/s2point.h(e:*,25 a:
bfIn file included from sa../src/s2/util/coding/coder.hll:_s36ne:
o)In file included from n;../src/s2/base/casts.hn
:u      34l| :
                              ^lIn file included from  
/usr/local/clang/include/absl/log/log.hf:u209n:
c/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from ):/usr/local/clang/include/absl/log/internal/log_impl.h(496:v:20o9:
i:In file included from d /usr/local/clang/include/absl/log/absl_vlog_is_on.h*note: :macro 'ABSL_INTERNAL_X' defined here 63a
:
bs/usr/local/clang/include/absl/log/internal/vlog_config.h  l:496_133 | n:#ud37le:lf aiwarning: bntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ie
l iAt  By133_SuL | nik_nnItNoT wERnRe)gN,i
As      Lt| e_                   ^rX
A(nF/usr/local/clang/include/absl/base/nullability.hudn:Ic241n,:i 22tC:ia alnote: lexpanded from macro 'absl_nonnull'li
eze  e,241(  | V#KLdoQegfuSiainlte,e  aMbQsula_ln,o nKnVualllu e_,N oMnVnaullule
,       | .                     ^.
.)     \In file included from 
s2/s2shapeutil_coding.cc      :| 18        ^:

In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 522                                 ^:
3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   AIn file included from Bs2/s2shapeutil_coding.ccS:L18_:
IIn file included from N../src/s2/s2shapeutil_coding.hT:E44R:
NIn file included from A../src/s2/s2coder.hL:_23X:
(In file included from i/usr/local/clang/include/absl/status/status.hn:s67e:
rIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h_:o29r:
_In file included from a/usr/local/clang/include/absl/strings/cord.hs:s94i:
gIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31i:
n/usr/local/clang/include/absl/synchronization/mutex.hs:e802r:t19_:o rwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
ssi  g802n | _ i m p l ,   c o n s t  v&o,i dc*o nasbts l&_,n
u      l| l  ^a
bil/usr/local/clang/include/absl/container/internal/btree_container.hi:t509y:_52u:n knote: nexpanded from macro 'ABSL_INTERNAL_X'o
wn   a509r | g ) ; 
        |                    ^ 
  /usr/local/clang/include/absl/base/nullability.h :A289B:S34L:_ Inote: Nexpanded from macro 'absl_nullability_unknown'T
ER  N289A | L#_dAeTfTiRnIeB UaTbEs_lC_AnPuTlUlRaEbDi_lBiYt(yt_huinsk)n)o,w n   _ N u l l _ u n s p e c i f i e d 
        |                                   ^ 
\
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #definIn file included from es2/s2shapeutil_coding.cc :A18B:
SIn file included from L../src/s2/s2shapeutil_coding.h_:I44N:
TIn file included from E../src/s2/s2coder.hR:N23A:
LIn file included from _/usr/local/clang/include/absl/status/status.hI:F67_:
fIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl:s29e:
(In file included from i/usr/local/clang/include/absl/strings/cord.hf:_94s:
aIn file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.hi:s31f:
i/usr/local/clang/include/absl/synchronization/mutex.he:d814,: 20.:. .warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
__VA  _814A | R G SC_o_n
d      i| t        ^i
on(bool (*absl_In file included from ns2/s2shapeutil_conversion.cco:n18n:
uIn file included from l../src/s2/s2shapeutil_conversion.hl: 28f:
uIn file included from n../src/s2/s2polygon.hc:)34(:
TIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl:a522b:i3l:i twarning: ypassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
unk  n522o | w n )A,B
S      L| _                   ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Xnote: (expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns,l _innosnenrutl_lo r__Naosnsniuglnl_
i      m| p                     ^l
, consIn file included from ts2/s2shapeutil_coding.cc :&18,:
 In file included from c../src/s2/s2shapeutil_coding.ho:n44s:
tIn file included from  ../src/s2/s2coder.h&:,23
:
      In file included from | /usr/local/clang/include/absl/status/status.h  ^:
67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/internal/status_internal.h::51129::
52In file included from :/usr/local/clang/include/absl/strings/cord.h :note: 94expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
511/usr/local/clang/include/absl/synchronization/mutex.h | : 814 : 42 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
  A  B814S | L _ ICNoTnEdRiNtAiLo_nA(TbToRoIlB U(T*Ea_bCsAlP_TnUoRnEnDu_lBlY (ftuhnics))()T)*   a b s l _ n u l l a b i l i t y _ u n k n o w\n
)      ,| 
                                                   ^      
|                                          ^/usr/local/clang/include/absl/container/internal/common.h
:32:/usr/local/clang/include/absl/base/nullability.h9::289 :note: 34macro 'ABSL_INTERNAL_IF_false' defined here:
 note:    expanded from macro 'absl_nullability_unknown'32
 | #d  e289f | i#ndee fAiBnSeL _aIbNsTlE_RnNuAlLl_aIbFi_lfiatlys_eu(nikfn_oswant i_sNfuileld_,u n.s.p.e)c i_f_iVeAd_
A      R| G                                 ^S
__
      |         ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |           In file included from  s2/s2shapeutil_conversion.cc :T18*:
 In file included from a../src/s2/s2shapeutil_conversion.hb:s28l:
_In file included from n../src/s2/s2polygon.hu:l34l:
aIn file included from b../src/s2/mutable_s2shape_index.hi:l30i:
tIn file included from y/usr/local/clang/include/absl/container/btree_map.h_:u67n:
k/usr/local/clang/include/absl/container/internal/btree_container.hn:o525w:n30 :a rwarning: gpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
;
        | 525               ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # d effailnsee ,a btsrlu_en)u;l
l      a| b                             ^i
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
l:29*:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from  :/usr/local/clang/include/absl/strings/cord.ha524:b:94s3:
l:In file included from _ /usr/local/clang/include/absl/strings/internal/cordz_info.hnwarning: :opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]31n
:
nu/usr/local/clang/include/absl/synchronization/mutex.hl:  l979 524:v | 43 ):;  
Awarning:       Btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| S
L                                    ^_
INT  E979R | /usr/local/clang/include/absl/base/nullability.h N: A241sL:t_22aX:(t inote: icexpanded from macro 'absl_nonnull' n
bsoe  ro241tl |  _#Adolerwfai_ynseaT rsaubseis(lgc_nno,onn snitun slCleor n_tdNi_ootrn_inaousnl*sl 
ia      gb| ns                     ^_l
_inmuplll,a bcloen)s t{  &r,e tcuornns tt r&u,e
;       | }  ^

      |                                           ^/usr/local/clang/include/absl/container/internal/btree_container.h
:509:52:/usr/local/clang/include/absl/base/nullability.h :note: 257expanded from macro 'ABSL_INTERNAL_X':
23: note:   expanded from macro 'absl_nullable'509
 |     257  |  # d e f i n eA BaSbLs_lI_NnTuElRlNaAbLIn file included from l_s2/s2shapeutil_contains_brute_force.cceA: T18_T:
NRIn file included from uI../src/s2/s2shapeutil_contains_brute_force.hlB:lU21aT:
bEIn file included from _l../src/s2/s2point.hCe:A
25P      :
T| In file included from U                      ^../src/s2/util/coding/coder.hR
:E36D:
_In file included from B../src/s2/base/casts.hY:(34t:
hIn file included from i/usr/local/clang/include/absl/log/log.hs:)209):
,In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 157 : 11 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
       157\ | 
V      L| o                                                   ^g
Sit/usr/local/clang/include/absl/container/internal/common.he:*32 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_false' defined heren
ul   l32a | b#ldeefine  SAeBtSVLM_oIdNuTlEeRLNiAsLt_HIeFa_dfFaolrsTee(sitfO_nslayt(i
s      f| i          ^e
d, /usr/local/clang/include/absl/base/nullability.h.:.257.:)23 :_ _note: Vexpanded from macro 'absl_nullable'A
_A  R257G | S#_d_e
f      i| n        ^e
 absl_nullaIn file included from bs2/s2shapeutil_conversion.ccl:e18 :
_In file included from N../src/s2/s2shapeutil_conversion.hu:l28l:
aIn file included from b../src/s2/s2polygon.hl:e34
:
In file included from       In file included from s2/s2shapeutil_get_reference_point.cc| ../src/s2/mutable_s2shape_index.h:                      ^:18
30:
:
In file included from In file included from ../src/s2/s2shapeutil_get_reference_point.h/usr/local/clang/include/absl/container/btree_map.h::2167In file included from :
:
s2/s2shapeutil_contains_brute_force.ccIn file included from /usr/local/clang/include/absl/container/internal/btree_container.h:../src/s2/s2shape.h:18:524:
25:In file included from :
3../src/s2/s2shapeutil_contains_brute_force.hIn file included from ::../src/s2/s2coder.h 21:warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]23In file included from 
:
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/status/status.h  25:524:
67 | In file included from :
 ../src/s2/util/coding/coder.hIn file included from  :/usr/local/clang/include/absl/status/internal/status_internal.hA36:B:
29SIn file included from :
L../src/s2/base/casts.hIn file included from _:/usr/local/clang/include/absl/strings/cord.hI34:N:
94TIn file included from :
E/usr/local/clang/include/absl/log/log.hIn file included from R:/usr/local/clang/include/absl/strings/internal/cordz_info.hN209:A:
31LIn file included from :
_/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/synchronization/mutex.hX:(:20i1033n:
:sIn file included from 20e/usr/local/clang/include/absl/log/absl_vlog_is_on.h:r: t63warning: _:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/vlog_config.ho
:r158_ :a103315s | : s  iwarning: vtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]go
ind  ,  158Wi | a ni ts ( eMVruLttoe_gxSo*ir ta_eb*ass las_bingsonn_ln_iumnpull,ll lc oambnul)se  t{ v
&)      ;,| 
                    ^      c
o| n              ^/usr/local/clang/include/absl/base/nullability.hs
t: 241&/usr/local/clang/include/absl/base/nullability.h:,:22
257:      : | 23note:   ^:expanded from macro 'absl_nonnull'
 
note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nullable'  :
241511 |   #:257d52 | e:#fd ienote: nexpanded from macro 'ABSL_INTERNAL_X'fei
 naeb   sa511lb_ | snl o _nn nuul ll la  b_ lNe o  n_ nANuuBlSlllL
a_      bI| lN                     ^eT

E      R| N                      ^A
L_ATTRIBUTE_CAPTUIn file included from Rs2/s2shapeutil_get_reference_point.ccE:D18_:
BIn file included from Y../src/s2/s2shapeutil_get_reference_point.h(:t21h:
iIn file included from s../src/s2/s2shape.h):)25):
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31\:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 1050                                                   ^:
31: /usr/local/clang/include/absl/container/internal/common.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:9:  note: 1050macro 'ABSL_INTERNAL_IF_true' defined here | 
  b   o31o | l# dWeafiitnWei tAhBTSiLm_eIoNuTtE(RMNuAtLe_xI*F _atbrsule_(niofn_nsualtli smfui,e da,b s.l.:.:)D uirfa_tsiaotni stfiimeedo
u      t| )        ^ 
{
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2shapeutil_conversion.ccf:i18n:
eIn file included from  ../src/s2/s2shapeutil_conversion.ha:b28s:
lIn file included from _../src/s2/s2polygon.hn:o34n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l524
:      3| :                     ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(inserIn file included from ts2/s2shapeutil_get_reference_point.cc_:o18r:
_In file included from a../src/s2/s2shapeutil_get_reference_point.hs:s21i:
gIn file included from n../src/s2/s2shape.h,: 25i:
nIn file included from s../src/s2/s2coder.he:r23t:
_In file included from o/usr/local/clang/include/absl/status/status.hr:_67a:
sIn file included from sign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INT/usr/local/clang/include/absl/status/internal/status_internal.hERN:A29L:
_In file included from A/usr/local/clang/include/absl/strings/cord.hT:T94R:
IIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hU:T31E:
_C/usr/local/clang/include/absl/synchronization/mutex.hA:P1069T:U32R:E Dwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
Y(this )1069) | ,    b o o l   W a i t W i t h D e a d l i n e ( M\u
t      e| x                                              ^~~~*
 absl_n/usr/local/clang/include/absl/container/internal/btree_container.ho:n526n:u3l:l  warning: mpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
,/usr/local/clang/include/absl/container/internal/btree_container.h :a511b:s52l:: :note: Texpanded from macro 'ABSL_INTERNAL_X'i
me   d511e | a d l i n e )   { 
       A| B                               ^S
L_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'A
TT  R241I | B#UdTeEf_iCnAeP TaUbRsElD__nBoYn(ntuhlils )_)N)o n n u l l 
        |                       ^ 
              \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNALIn file included from _s2/s2shapeutil_get_reference_point.ccI:F18_:
fIn file included from a../src/s2/s2shapeutil_get_reference_point.hl:s21e:
(In file included from i../src/s2/s2shape.hf:_25s:
aIn file included from t../src/s2/s2coder.hi:s23f:
iIn file included from e/usr/local/clang/include/absl/status/status.hd:,67 :
.In file included from ./usr/local/clang/include/absl/status/internal/status_internal.h.:)29 :
_In file included from _/usr/local/clang/include/absl/strings/cord.hV:A94_:
AIn file included from R/usr/local/clang/include/absl/strings/internal/cordz_info.hG:S31_:
_/usr/local/clang/include/absl/synchronization/mutex.h
:      1088| :        ^35
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |               In file included from  s2/s2shapeutil_get_reference_point.cc : 18 :
tIn file included from r../src/s2/s2shapeutil_get_reference_point.hu:e21,:
 In file included from t../src/s2/s2shape.hr:u25e:
)In file included from ;../src/s2/s2coder.h
:      23| :
                            ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 496/usr/local/clang/include/absl/status/internal/status_internal.h::929::
 In file included from note: /usr/local/clang/include/absl/strings/cord.hmacro 'ABSL_INTERNAL_X' defined here:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h  :49631 | :
#/usr/local/clang/include/absl/synchronization/mutex.hd:e1109f:i34n:e  warning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B
SL_ I1109N | T E ReNxApLl_iXc(iFtu nMcu,t eCxaLlolcekeM,a yKbQeu(aMlu,t eMxQ*u aalb,s lK_Vnaullulea,b lMeV amluu)e
,       | .                                 ^.
.)/usr/local/clang/include/absl/base/nullability.h : 257 : 23 :\ 
note:       expanded from macro 'absl_nullable'| 
        ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit/usr/local/clang/include/absl/container/internal/btree_container.h :M528u:t3e:x Lwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]c
kMay  b528e | ( M uAtBeSxL*_ IaNbTsElR_NnAuLl_lXa(bilnes emrut,_ ocro_nassts iCgonn,d iitnisoenr&t _coorn_da)s
s      i| g                                 ^n
_i/usr/local/clang/include/absl/base/nullability.hm:p257l:,23 :c onote: nexpanded from macro 'absl_nullable's
t   &257ity_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       const T* absl_nonnull object,
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | # | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
e absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit CoIn file included from ns2/s2shapeutil_get_reference_point.ccd:i18t:
iIn file included from o../src/s2/s2shapeutil_get_reference_point.hn:(21c:
oIn file included from n../src/s2/s2shape.hs:t25 :
TIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:
 In file included from o/usr/local/clang/include/absl/strings/cord.hb:j94):

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                              ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/base/nullability.h1146::2417::22 : warning: note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]expanded from macro 'absl_nonnull'

  241 |  #1146d | e f i n e   atbhsils_)n)o nAnBuSlLl_ E_XNCoLnUnSuIlVlE
_      L| O                     ^C
K_FUNCTION(mu)
      |       ^~~~
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2shapeutil_coding.cc::115318::
39In file included from :../src/s2/s2shapeutil_coding.h :44warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from  /usr/local/clang/include/absl/status/status.h1153: | 67 :
 In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:p29l:
iIn file included from c/usr/local/clang/include/absl/strings/cord.hi:t94 :
RIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31a:
s/usr/local/clang/include/absl/synchronization/mutex.ha:b922l:e48M:u twarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]x
Lock  (922M | u t esxt*a taibcs lb_onooln nGuulalr amnut)e
e      d| E                                      ^q
ua/usr/local/clang/include/absl/base/nullability.hl:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'C
on  d241i | t#idoenf*i naeb salb_snlu_lnloanbnluel la ,_
N      o| n                                               ^n
ul/usr/local/clang/include/absl/base/nullability.hl:
257      :| 23                     ^:
 note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NullablIn file included from es2/s2shapeutil_get_reference_point.cc
:      18| :
                      ^In file included from 
../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2shapeutil_coding.cc/usr/local/clang/include/absl/status/status.h::1867:
:
In file included from In file included from ../src/s2/s2shapeutil_coding.h/usr/local/clang/include/absl/status/internal/status_internal.h::4429:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/cord.h::2394:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::6731:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/synchronization/mutex.h::291158:
:In file included from 53/usr/local/clang/include/absl/strings/cord.h:: 94:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h: 9231158: | 48 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 Mu  t923e | x &   m u   A B S L _ I N T E R N A L _ A T T R I B U T E _ CcAoPnTsUtR ECDo_nBdYi(ttihoins*) ,a
b      s| l                                                    ^~~~_
nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define/usr/local/clang/include/absl/synchronization/mutex.h :a1166b:s39l:_ nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
labl e1166  | _ N uelxlpalbilcei
t       | R                      ^e
leasableMutexLock(Mutex* absl_nonnull mu, const ConditiIn file included from os2/s2shapeutil_coding.ccn:&18 :
cIn file included from o../src/s2/s2shapeutil_coding.hn:d44):

In file included from       ../src/s2/s2coder.h| :                                      ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i948n:e10 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_non  n948u | l l  b_oNooln n(u*lalb
s      l| _                     ^n
ullable eval_)(const Condition* absl_nonnull) = nullptrIn file included from ;s2/s2shapeutil_get_reference_point.cc
:      18| :
         ^In file included from 
../src/s2/s2shapeutil_get_reference_point.h:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2shape.h257::2523:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'absl_nullable':

In file included from /usr/local/clang/include/absl/status/status.h:  67257:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1179a:b10l:e  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
ull a1179b | l e 
M      u| t                      ^e
x* abslIn file included from _s2/s2shapeutil_coding.ccn:u18l:
lIn file included from a../src/s2/s2shapeutil_coding.hb:l44e:
 In file included from m../src/s2/s2coder.hu:_23;:

In file included from       /usr/local/clang/include/absl/status/status.h| :         ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29257:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
  /usr/local/clang/include/absl/synchronization/mutex.h257: | 948#:d48e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s948l | _ n ubloloalb l(e* a_bNsull_lnaublllea
b      l| e                      ^ 
eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(iIn file included from fs2/s2shapeutil_get_reference_point.cc_:s18a:
tIn file included from i../src/s2/s2shapeutil_get_reference_point.hs:f21i:
eIn file included from d../src/s2/s2shape.h,: 25.:
.In file included from .../src/s2/s2coder.h): 23_:
_In file included from V/usr/local/clang/include/absl/status/status.hA:_67A:
RIn file included from G/usr/local/clang/include/absl/status/internal/status_internal.hS:_29_:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :        ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_conversion.cc
:18:
In file included from ../src/s2/s2shapeutil_conversion.h: 281212:
 | In file included from b../src/s2/s2polygon.ho:o34l:
 In file included from C../src/s2/mutable_s2shape_index.ho:n30d:
iIn file included from t/usr/local/clang/include/absl/container/btree_map.hi:o67n:
:/usr/local/clang/include/absl/container/internal/btree_container.h::C533a:s3t:A nwarning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]C
allM  e533t | h o dA(BcSoLn_sItN TCEoRnNdAiLt_iXo(ni*n saebrstl__onro_nansuslilg nc,)  i{n
s      e| r                                                   ^t
_or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #cdoenfsitn e& ,a b&s&l,_ nfoanlnsuel,l
       _| N  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:
52      :|                       ^note: 
expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))               In file included from  s2/s2shapeutil_get_reference_point.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_get_reference_point.h : 21 :
\In file included from 
../src/s2/s2shape.h      :| 25                                                   ^:

In file included from ../src/s2/s2coder.h:/usr/local/clang/include/absl/container/internal/common.h23::
31In file included from :/usr/local/clang/include/absl/status/status.h9::67 :
In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hmacro 'ABSL_INTERNAL_IF_true' defined here:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h   :3194 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.he:f31i:
n/usr/local/clang/include/absl/synchronization/mutex.he: 1221A:B54S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN A1221L | _bIoFo_lt rCuoen(diift_isoant:i:sCfaisetdA,n d.C.a.l)l Fiufn_cstaitoins(fcioends
t       | C        ^o
ndition* absl_noIn file included from ns2/s2shapeutil_conversion.ccn:u18l:
lIn file included from  ../src/s2/s2shapeutil_conversion.hc:)28 :
{In file included from 
../src/s2/s2polygon.h      :| 34                                                     ^:

In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/base/nullability.h30::
241In file included from :/usr/local/clang/include/absl/container/btree_map.h22::67 :
note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
533:3  :241  | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efine   a533b | s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uXl(li
n      s| e                     ^r
t_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |               In file included from  s2/s2shapeutil_get_reference_point.cc : 18 :
tIn file included from r../src/s2/s2shapeutil_get_reference_point.hu:e21):
;In file included from 
../src/s2/s2shape.h      :| 25                  ~~~~~:

In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511/usr/local/clang/include/absl/status/status.h::4767::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'ABSL_INTERNAL_X'29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
511 | In file included from           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #de:
fi/usr/local/clang/include/absl/synchronization/mutex.hn:e958 :a50b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnull   958_ | N o nsntualtli
c       | b                     ^o
ol CastAndCalIn file included from ls2/s2shapeutil_get_reference_point.ccM:e18t:
hIn file included from o../src/s2/s2shapeutil_get_reference_point.hd:(21c:
oIn file included from n../src/s2/s2shape.hs:t25 :
CIn file included from o../src/s2/s2coder.hn:d23i:
tIn file included from i/usr/local/clang/include/absl/status/status.ho:n67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31c:
)/usr/local/clang/include/absl/synchronization/mutex.h;:
1230      :| 34                                                 ^:
 warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22 :1230  | note:  expanded from macro 'absl_nonnull' 
    b241o | o#ld e(f*ianbes la_bnsoln_nnuolnln ufluln c_)N(oTn*n ualbls
l      _| n                     ^u
llability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | In file included from #s2/s2shapeutil_coding.ccd:e18f:
iIn file included from n../src/s2/s2shapeutil_coding.he: 44a:
bIn file included from s../src/s2/s2coder.hl:_23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:a67b:
iIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hi:t29y:
_In file included from u/usr/local/clang/include/absl/strings/cord.hn:k94n:
oIn file included from w/usr/local/clang/include/absl/strings/internal/cordz_info.hn: 31_:
N/usr/local/clang/include/absl/synchronization/mutex.hu:l961l:_34u:n swarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
cif  i961e | d 
       s| t                                 ^a
tic bool CallByRef(In file included from cs2/s2shapeutil_get_reference_point.cco:n18s:
tIn file included from  ../src/s2/s2shapeutil_get_reference_point.hT:*21 :
aIn file included from b../src/s2/s2shape.hs:l25_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :s67e:
lIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.h): 29{:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                                 ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:22/usr/local/clang/include/absl/synchronization/mutex.h:: 1231:note: 8expanded from macro 'absl_nonnull':
 warning:   241type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
#de f1231i | n e   a bTs*l _anbosnln_unlull l_aNboinlniutlyl_
u      n| k                     ^n
own arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_In file included from ns2/s2shapeutil_coding.ccu:l18l:
aIn file included from b../src/s2/s2shapeutil_coding.hi:l44i:
tIn file included from y../src/s2/s2coder.h_:u23n:
kIn file included from n/usr/local/clang/include/absl/status/status.ho:w67n:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:u29l:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hu:n94s:
pIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hc:i31f:
i/usr/local/clang/include/absl/synchronization/mutex.he:d975
:      31| :                                 ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2shapeutil_get_reference_point.ccn:o18n:
nIn file included from u../src/s2/s2shapeutil_get_reference_point.hl:l21 :
_In file included from N../src/s2/s2shape.ho:n25n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_coding.cc :124118 | :
 In file included from  ../src/s2/s2shapeutil_coding.h : 44b:
oIn file included from o../src/s2/s2coder.hl: 23(:
*In file included from a/usr/local/clang/include/absl/status/status.hb:s67l:
_In file included from n/usr/local/clang/include/absl/status/internal/status_internal.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 94f:
uIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hc:)31(:
/usr/local/clang/include/absl/synchronization/mutex.hT:*979 :a43b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
ulla  b979i | l i tsyt_autnikcn obwono)l, 
A      l| w           ^a
ys/usr/local/clang/include/absl/base/nullability.hT:r241u:e22(:c onote: nexpanded from macro 'absl_nonnull's
t   C241o | n#ddietfiionne*  aabbssll__nnounlnlualbll e_)N o{n nrueltlu
r      n|                       ^t
rue; }
In file included from       s2/s2shapeutil_get_reference_point.cc| :                                          ^18
:
In file included from ../src/s2/s2shapeutil_get_reference_point.h/usr/local/clang/include/absl/base/nullability.h::21257:
:In file included from 23../src/s2/s2shape.h:: 25:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2coder.h
:23:
  In file included from 257/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
a/usr/local/clang/include/absl/synchronization/mutex.hb:l1241e: 34_:N uwarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
abl e1241
 |        |                        ^ 
 bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::In file included from ts2/s2shapeutil_coding.ccy:p18e:
_In file included from i../src/s2/s2shapeutil_coding.hd:e44n:
tIn file included from i../src/s2/s2coder.ht:y23<:
TIn file included from >/usr/local/clang/include/absl/status/status.h:::67t:
yIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.he:*29 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from u/usr/local/clang/include/absl/strings/internal/cordz_info.hl:l31a:
b/usr/local/clang/include/absl/synchronization/mutex.hi:l1033i:t20y:_ uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]k
now n1033
 |        |                                             ^v
oi/usr/local/clang/include/absl/base/nullability.hd: 289W:a34i:t (note: Mexpanded from macro 'absl_nullability_unknown'u
te  x289* |  #adbesfl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   v/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
ine absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |         In file included from  s2/s2shapeutil_get_reference_point.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_get_reference_point.h : 21 :
 In file included from t../src/s2/s2shape.hr:u25e:
)In file included from ;../src/s2/s2coder.h
:      23| :
                      ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 496/usr/local/clang/include/absl/status/internal/status_internal.h::929::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :macro 'ABSL_INTERNAL_X' defined here94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:  31496:
 | #/usr/local/clang/include/absl/synchronization/mutex.hd:e1249f:i8n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_ I1249N | T E R N ATL*_ Xa(bFsuln_cn,o nCnaulllle eo,b jKeQcuta,l
,       | M       ^Q
ual/usr/local/clang/include/absl/base/nullability.h,: 241K:V22a:l unote: eexpanded from macro 'absl_nonnull',
 M  V241a | l#udee,f i.n.e. )a b s l _ n\o
n      n| u        ^l
l _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* a/usr/local/clang/include/absl/container/internal/btree_container.hb:s537l:_3n:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll m  e537t | h o dA)B(S)L)_
I      N| T                                          ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L241_:X22(:i nnote: sexpanded from macro 'absl_nonnull'e
rt  _241o | r#_daesfsiingen ,a bisnls_enrotn_nourl_la s_sNiognnn_uilmlp
l      ,|                       ^c
onst &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERIn file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2shape_nesting_query.cc::126026::
43: ../src/s2/util/bitmap/bitmap.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]131
:5:  warning: 1260type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
    bo  o131l |   ( a b sSl2:_:CtHyEpCeK__iLdTe(natrirtayy<_Ti>n:d:etxy,p ea:r:r*a ya_bssilz_en(o)n)n;u
l      l|      ^m
etho../src/s2/base/logging.hd:)38(:)21
:       | note:                                           ^expanded from macro 'S2_CHECK_LT'

/usr/local/clang/include/absl/base/nullability.h   :38241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   S2412 | _#CdHeEfCiKn_eL Ta bCsHlE_CnKo_nLnTu
l      l|                      ^_
No/usr/local/clang/include/absl/log/check.hn:n124u:l3l:
       note: | expanded from macro 'CHECK_LT'                     ^

  124 |   ABSL_LOG_INTERNAL_CHECK_LT_IMPL((val1), #val1, (val2), #val2)
      |   ^In file included from 
s2/s2shapeutil_get_reference_point.cc:18/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 55../src/s2/s2shapeutil_get_reference_point.h::321::
 In file included from note: ../src/s2/s2shape.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LT_IMPL':
25:
In file included from ../src/s2/s2coder.h   :5523 | :
 In file included from  /usr/local/clang/include/absl/status/status.hA:B67S:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hL:O29G:
_In file included from I/usr/local/clang/include/absl/strings/cord.hN:T94E:
RIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hA:L31_:
C/usr/local/clang/include/absl/synchronization/mutex.hH:E1279C:K35_:O Pwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
heck _1279L | Tv,o i<d,  Rveagli1s,t evraMlu1t_etxePxrto,f ivlaelr2(,v oviadl 2(_*taebxstl)_
n      o| n  ^n
ul/usr/local/clang/include/absl/log/internal/check_op.hl: 68f:n22):( inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP't
64_   t68  | w a iwth_iclyec l(ecso)n)s;t
       c| h                                  ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# daebfsiln_el oagb_siln_tneornnnaull_lc h_eNcokn_noupl_lr
e      s| u                     ^l
t           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2/s2shapeutil_get_reference_point.cci:n18e:
 In file included from a../src/s2/s2shapeutil_get_reference_point.hb:s21l:
_In file included from n../src/s2/s2shape.hu:l25l:
aIn file included from b../src/s2/s2coder.hl:e23 :
_In file included from N/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                      ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
In file included from       s2/s2shape_nesting_query.cc| :                                ^26
:
../src/s2/util/bitmap/bitmap.h/usr/local/clang/include/absl/base/nullability.h::131241::522::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

../src/s2/base/logging.h  :24138 | :#21d:e fnote: iexpanded from macro 'S2_CHECK_LT'n
e a   b38s | l#_dneofninnuel lS 2__NCoHnEnCuKl_lL
T       | C                     ^H
ECK_In file included from Ls2/s2shapeutil_get_reference_point.ccT:
18      :
| In file included from                     ^../src/s2/s2shapeutil_get_reference_point.h
:21:
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2shape.h124::253:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'CHECK_LT'23
:
In file included from /usr/local/clang/include/absl/status/status.h:  67124:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :A29B:
SIn file included from L/usr/local/clang/include/absl/strings/cord.h_:L94O:
GIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hI:N31T:
E/usr/local/clang/include/absl/synchronization/mutex.hR:N1293A:L62_:C Hwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
K_L T1293_ | IvMoPiLd( (Rveagli1s)t,e r#Mvuatle1x,Tracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 (voal2i)d,  E#nvaabll2e)D
e      b| u  ^g
Log(c/usr/local/clang/include/absl/log/internal/check_impl.ho:n55s:t3 :c hnote: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LT_IMPL'r
* ab   s55l | _ n uAlBlSaLb_lLeO Gn_aImNeT)E;R
N      A| L                                  ^_
CHECK_/usr/local/clang/include/absl/base/nullability.hO:P257(:C23h:e cnote: kexpanded from macro 'absl_nullable'_
LT,   257< | ,# dveafli1n,e  vaabls1l__tneuxltl,a bvlael 2_,N uvlalla2b_ltee
x      t| )                      ^

      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CIn file included from Hs2/s2shapeutil_coding.ccE:C18K:
(In file included from :../src/s2/s2shapeutil_coding.h::a44b:
sIn file included from l../src/s2/s2coder.h:::23i:
mIn file included from p/usr/local/clang/include/absl/status/status.hl:i67c:
iIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h_:c29a:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h<:c94o:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.ht: 31c:
h/usr/local/clang/include/absl/synchronization/mutex.ha:r1091*: 26a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non n1091u | l l >b(o o l   W a\i
t      C| o                                                            ^m
mo/usr/local/clang/include/absl/base/nullability.hn:(241M:u22t:e xnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  ambustle_xn,o
n      n| u                         ^l
l /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

        | 241                     ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:26:
../src/s2/util/bitmap/bitmap.h:145:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  145 |     S2_CHECK_LT(array_index, array_size());
      |     ^
../src/s2/base/logging.h:38:21: note: expanded from macro 'S2_CHECK_LT'
   38 | #define S2_CHECK_LT CHECK_LT
      |                     ^
/usr/local/clang/include/absl/log/check.h:124:3: note: expanded from macro 'CHECK_LT'
  124 |   ABSL_LOG_INTERNAL_CHECK_LT_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:55:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_LT_IMPL'
   55 |   ABSL_LOG_In file included from Is2/s2shapeutil_coding.ccN:T18E:
RIn file included from N../src/s2/s2shapeutil_coding.hA:L44_:
CIn file included from H../src/s2/s2coder.hE:C23K:
_In file included from O/usr/local/clang/include/absl/status/status.hP:(67C:
hIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hc:k29_:
LIn file included from T/usr/local/clang/include/absl/strings/cord.h,: 94<:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hv:a31l:
1/usr/local/clang/include/absl/synchronization/mutex.h,: 1109v:a34l:1 _warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
xt,  1109v | a l 2e,x pvlailc2i_tt eMxutt)e
x      | L  ^o
ck/usr/local/clang/include/absl/log/internal/check_op.hM:a68y:b22e:( Mnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP't
ex*    68a | b s lw_hniullel a(bcloen smtu )c
h      a| r                                 ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:u lnote: lexpanded from macro 'absl_nullable'a
ble   257a | b#sdle_flionge_ ianbtselr_nnaull_lcahbelcek __oNpu_lrleasbullet
        |                        ^ 
       \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2shapeutil_coding.ccn:u18l:
lIn file included from a../src/s2/s2shapeutil_coding.hb:l44e:
 In file included from _../src/s2/s2coder.hN:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                      ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const CoIn file included from ns2/s2shape_nesting_query.ccd:i26t:
i../src/s2/util/bitmap/bitmap.ho:n145&: 5c:o nwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])

      | ../src/s2/base/logging.h                                 ^:
38:21/usr/local/clang/include/absl/base/nullability.h:: 257note: :expanded from macro 'S2_CHECK_LT'23
:    note: 38expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee fSi2n_eC HaEbCsKl__LnTu lClHaEbClKe_ L_TN
u      l| l                    ^a
bl/usr/local/clang/include/absl/log/check.he:
124      :| 3                      ^:
 note: expanded from macro 'CHECK_LT'
  124 |   ABSL_LOG_INTERNAL_CHECK_LT_IMPL((valIn file included from 1s2/s2shapeutil_coding.cc):,18 :
#In file included from v../src/s2/s2shapeutil_coding.ha:l441:
,In file included from  ../src/s2/s2coder.h(:v23a:
lIn file included from 2/usr/local/clang/include/absl/status/status.h):,67 :
#In file included from v/usr/local/clang/include/absl/status/internal/status_internal.ha:l292:
)In file included from 
/usr/local/clang/include/absl/strings/cord.h      :94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10NAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(| in  ^s
ert_/usr/local/clang/include/absl/log/internal/check_impl.ho:r55_:a3s:s inote: gexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LT_IMPL'n
, in   s55e | r t _AoBrS_La_sLsOiGg_nI_NiTmEpRlN,A Lc_oCnHsEtC K&_,O P&(&C,h etcrku_eL,T
,       | <  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~,
 v  a538l | 1 ,   v a l 1 _ t e x t ,   v a l 2 ,t rvuael)2;_
t      e| x                  ~~~~~t
)
      | /usr/local/clang/include/absl/container/internal/btree_container.h  ^:
511:47/usr/local/clang/include/absl/log/internal/check_op.h:: 75note: :expanded from macro 'ABSL_INTERNAL_X'61
: note:   expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'511
 |       75  |      A B S LA_BLSOLG__IINNTTEERRNNAALL__ACTHTERCIKB(U:T:Ea_bCsAlP:T:UiRmEpDl_iBcYi(tt_hciass)t)<)c o n s t   c h a r *   a b s l _ n o n n u l l >\(
        |                                                ^~~~ 
 \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_fal: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _In file included from Ns2/s2shapeutil_get_reference_point.ccu:l18l:
aIn file included from b../src/s2/s2shapeutil_get_reference_point.hl:e21
:
      In file included from | ../src/s2/s2shape.h                      ^:
25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(conIn file included from ss2/s2shapeutil_coding.cct: 18C:
oIn file included from r../src/s2/s2shapeutil_coding.hd:&44 :
sIn file included from r../src/s2/s2coder.hc:,23 :
sIn file included from t/usr/local/clang/include/absl/status/status.hd::67::
sIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.hr:i29n:
gIn file included from */usr/local/clang/include/absl/strings/cord.h :a94b:
sIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h_:n31o:
n/usr/local/clang/include/absl/synchronization/mutex.hn:u1146l:l7 :d swarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes])
;
       | 1146                                                      ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22t:h inote: sexpanded from macro 'absl_nonnull')
)   A241B | S#Ld_eEfXiCnLeU SaIbVsEl__LnOoCnKn_uFlUlN C_TNIoOnNn(umlul)

            | |                      ^      ^~~~

/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable In file included from ms2/s2shapeutil_get_reference_point.ccu:_18;:

In file included from       ../src/s2/s2shapeutil_get_reference_point.h| :         ^21
:
In file included from ../src/s2/s2shape.h/usr/local/clang/include/absl/base/nullability.h::25257:
:In file included from 23../src/s2/s2coder.h:: 23note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fi/usr/local/clang/include/absl/strings/cord.hn:e425 :a62b:s lwarning: _ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llabl  e425  | _ N uflrliaebnlde 
v      o| i                      ^d
 CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2shape_nesting_query.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h26::
29:
../src/s2/util/bitmap/bitmap.h/usr/local/clang/include/absl/strings/cord.h::385437::547::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  385   | 437  |       S 2 _ C H E C K _ E Q ( b i t s ( ) ,   o t h e r . b i t s (s)t)d;:
:      s| t    ^r
ing*../src/s2/base/logging.h :a36b:s21l:_ nnote: oexpanded from macro 'S2_CHECK_EQ'n
nu   l36l |  #ddsetf)i;n
e       | S                                              ^2
_C/usr/local/clang/include/absl/base/nullability.hH:E241C:K22_:E Qnote:  expanded from macro 'absl_nonnull'C
HE  C241K | _#EdQe
f      i| n                    ^e
 a/usr/local/clang/include/absl/log/check.hb:s118l:_3n:o nnote: nexpanded from macro 'CHECK_EQ'u
ll   _118N | o n nAuBlSlL
_      L| O                     ^G
_INTERNAL_CHECK_EQ_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:49:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'
   49 | In file included from  s2/s2shapeutil_get_reference_point.cc :A18B:
SIn file included from L../src/s2/s2shapeutil_get_reference_point.h_:L21O:
GIn file included from _../src/s2/s2shape.hI:N25T:
EIn file included from R../src/s2/s2coder.hN:A23L:
_In file included from C/usr/local/clang/include/absl/status/status.hH:E67C:
KIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hO:P29(:
C/usr/local/clang/include/absl/strings/cord.hh:e480c:k39_:E Qwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
==,   480v | a l 1 ,  uvsailn1g_ tpeoxitn,t evra l=2 ,c ovnaslt2 _vtaelxute)_
t      y| p  ^e
* /usr/local/clang/include/absl/log/internal/check_op.ha:b68s:l22_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
ull   ;68
 |        |                                        ^w
hi/usr/local/clang/include/absl/base/nullability.hl:e241 :(22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naublslla_bnloen naublsll __lNoogn_niunltle
r      n| a                     ^l
_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     expIn file included from ls2/s2shape_nesting_query.cci:c26i:
t../src/s2/util/bitmap/bitmap.h ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:s21:
In file included from ../src/s2/s2shape.h:25:
eIn file included from (../src/s2/s2coder.hi:f23_:
sIn file included from a/usr/local/clang/include/absl/status/status.ht:i67s:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.he:d29,:
 /usr/local/clang/include/absl/strings/cord.h.:.655.:)39 :_ _warning: Vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
_AR  G655S | _ _ 
        | e        ^x
plicit CharIterator(const CorIn file included from ds2/s2shapeutil_conversion.cc*: 18a:
bIn file included from s../src/s2/s2shapeutil_conversion.hl:_28n:
oIn file included from n../src/s2/s2polygon.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.hc:o30r:
dIn file included from )/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540/usr/local/clang/include/absl/base/nullability.h::3241:: 22warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
note: expanded from macro 'absl_nonnull'
    241540 |  | # d eAfBiSnLe_ IaNbTsElR_NnAoLn_nXu(liln s_eNrotn_nourl_la
s      s| i                     ^g
n, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: In file included from note: s2/s2shapeutil_get_reference_point.ccexpanded from macro 'ABSL_INTERNAL_X':
18::
  385In file included from 511:../src/s2/s2shapeutil_get_reference_point.h | 5: :21  :
 In file included from  warning: ../src/s2/s2shape.h type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] : 
 25 :
 In file included from A../src/s2/base/logging.h../src/s2/s2coder.hB:S:36L23:_:
I21In file included from N:/usr/local/clang/include/absl/status/status.hT :Enote: R67Nexpanded from macro 'S2_CHECK_EQ'A:
L
_In file included from A/usr/local/clang/include/absl/status/internal/status_internal.h   T:36T29 | R:
#I/usr/local/clang/include/absl/strings/cord.hdB:eU667fT:Ei44_n:Ce A Pwarning: Stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T2
U_RCE  HD667E_ | CB YK (_stEhtiQas t)Ci)Hc)E  C CKo _r d E  Q A 
d       v | a                     ^n 
c e /usr/local/clang/include/absl/log/check.hA :n 118d : R 3e :a  d note: (expanded from macro 'CHECK_EQ' C 
\h
a  r      118I|  | t                                                   ^ e
 rAaBtS/usr/local/clang/include/absl/container/internal/common.hoLr:_*32L O:aGb9_sIl:N_ Tnnote: Emacro 'ABSL_INTERNAL_IF_false' defined hereoRn
NnAu   Ll32_lC |  #HidEteC,fK i_snEieQz _AeBI_SMtLP _LInN(_T(bEvyRatNleA1sL)_)I,;F _
#f      v| aa                                           ^ll
s1e/usr/local/clang/include/absl/base/nullability.h,(: i241(f:_vs22aa:tl i2note: s)expanded from macro 'absl_nonnull'f,
i   #e241dv | ,a# ld.2e.).f)
 i      n_| _e  ^V A
_aA/usr/local/clang/include/absl/log/internal/check_impl.hbR:sG49lS:__3_n
:o       n| note: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'        ^u

ll    49_ | N o nAnBuSlLl_
L      O| G                     ^_
INTERNAL_CHECK_OP(Check_EQIn file included from ,s2/s2shapeutil_get_reference_point.cc :=18=:
,In file included from  ../src/s2/s2shapeutil_get_reference_point.hv:a21l:
1In file included from ,../src/s2/s2shape.h :v25a:
lIn file included from 1../src/s2/s2coder.h_:t23e:
xIn file included from t/usr/local/clang/include/absl/status/status.h,: 67v:
aIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h2In file included from :,s2/s2shapeutil_conversion.cc29 ::
v18/usr/local/clang/include/absl/strings/cord.ha:
:lIn file included from 6742../src/s2/s2shapeutil_conversion.h:_:37t28:e:
 xIn file included from warning: t../src/s2/s2polygon.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]):

34      :
|     ^In file included from 674
../src/s2/mutable_s2shape_index.h | : /usr/local/clang/include/absl/log/internal/check_op.h30 :s:
75tIn file included from :a/usr/local/clang/include/absl/container/btree_map.h61t::i67 c:
note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'/usr/local/clang/include/absl/container/internal/btree_container.hv
:o543i:   d2375 : | A  d vwarning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]aBn
ScLe  _(543LCOh | G a _r I I N t TeE r Ra Nt Ao Lr_ *C  H aE b C sKtl(r_u:en:o)an;b
nsu      ll:| l:                       ^iimt
p,l/usr/local/clang/include/absl/container/internal/btree_container.h is:cii496zte:__c9ta :snt _<bnote: cmacro 'ABSL_INTERNAL_X' defined hereyot
nesst  ) ;496c
h |       a#| rd                                    ^*e
 fa/usr/local/clang/include/absl/base/nullability.hib:sn241le:_ 22nA:oB nSnote: nexpanded from macro 'absl_nonnull'Lu
l_l  >I241(N |  #T dE eR f Ni\nA
Le      _ X| a                                                            ^(bF
usn/usr/local/clang/include/absl/base/nullability.hlc:_,241n :oC22an:ln luenote: leexpanded from macro 'absl_nonnull',l 
 K_  NQ241ou | anl#,n dueMlQfuli
anl      e,|                        ^aK
bVsall_uneo,n nMuVlall u_eN,o n.n.u.l)l 
        |                       ^ 
\
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
542:3  :241  | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
efin  e542  | a b sAlB_SnLo_nInNuTlElR N_ANLo_nXn(uilnls
e      r| t                     ^_
or_assign, insert_or_assign_iIn file included from ms2/s2shape_nesting_query.ccIn file included from p:s2/s2shapeutil_get_reference_point.ccl26:,:
 18../src/s2/util/bitmap/bitmap.h&:
:&In file included from ,394../src/s2/s2shapeutil_get_reference_point.h ::c521o::
n In file included from swarning: ../src/s2/s2shape.httype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]: 
25&:
  ,In file included from 394 ../src/s2/s2coder.h | f: a23 l:
 sIn file included from  e/usr/local/clang/include/absl/status/status.hS,:
267      _:
C| In file included from   ^H/usr/local/clang/include/absl/status/internal/status_internal.h
E:C29K/usr/local/clang/include/absl/container/internal/btree_container.h:
_:/usr/local/clang/include/absl/strings/cord.hE509:Q:736(52:b:17i :tnote:  sexpanded from macro 'ABSL_INTERNAL_X'warning: (
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
,     o509736t |  |  h e  r  .  bc iot ns s( t)  )C ;Ao
rB      dS*L|      ^a_
bIsN../src/s2/base/logging.hlT:_E36nR:oN21nA:n unote: lexpanded from macro 'S2_CHECK_EQ'l
 c   o36r | d#_d;e
f      i| n                ^e
 S/usr/local/clang/include/absl/base/nullability.h2:_241C:HIn file included from 22Es2/s2shapeutil_coding.cc:C: K18note: _:
expanded from macro 'absl_nonnull'EIn file included from 
Q../src/s2/s2shapeutil_coding.h   :241C44 | H#:
EdIn file included from Ce../src/s2/s2coder.hKf:_iE23nQe:

 In file included from       a/usr/local/clang/include/absl/status/status.h| b:                    ^s67
l:
_/usr/local/clang/include/absl/log/check.hIn file included from n:o/usr/local/clang/include/absl/status/internal/status_internal.h118n::n293u:
:lIn file included from  l/usr/local/clang/include/absl/strings/cord.hnote:  :expanded from macro 'CHECK_EQ'_94
N:
oIn file included from   n/usr/local/clang/include/absl/strings/internal/cordz_info.h118n: | u 31l :
lA
/usr/local/clang/include/absl/synchronization/mutex.hB      S:| L                     ^1212_
:L52O:G _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERNA L1212_ | CbHoEoClK _CEoQn_dIiMtPiLo(n(:v:aCla1s)t,A n#dvCaall1l,M e(tvhaold2()c,o n#svta lC2o)n
d      i| t  ^i
on/usr/local/clang/include/absl/log/internal/check_impl.h*: 49a:b3s:In file included from l s2/s2shapeutil_get_reference_point.cc_note: n:expanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'o18n
:
nIn file included from u   ../src/s2/s2shapeutil_get_reference_point.hl:l21 :
cIn file included from )../src/s2/s2shape.h :{25
:
      In file included from | ../src/s2/s2coder.h                                                   ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:/usr/local/clang/include/absl/base/nullability.h67::
241In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h22::29 :
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
795:43  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e795  | a b sflr_ineonndn uvloli d_ NAobnsnluFlolr
m      a| t                     ^F
lush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:In file included from 44s2/s2shapeutil_get_reference_point.cc:
:In file included from 18../src/s2/s2coder.h:
:In file included from 23../src/s2/s2shapeutil_get_reference_point.h:
:In file included from 21/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2shape.h:
:In file included from 25/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31/usr/local/clang/include/absl/status/internal/status_internal.h:
:29/usr/local/clang/include/absl/synchronization/mutex.h:
:1230/usr/local/clang/include/absl/strings/cord.h::12898:: 27warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 |     898  |   b oforli e(n*da bcsoln_snto nCnourldlz Ifnufnoc*) (aTb*s la_bnsull_lnaublllea bGieltiCtoyr_duznIknnfoowFno)r,T
e      s| t           ^i
ng/usr/local/clang/include/absl/base/nullability.h(:
241      :| 22                          ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
257:23  :241  | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en oanbnsull_ln u_lNloanbnluel l_
N      u| l                     ^l
able
      |                       ^In file included from 
s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from In file included from s2/s2shapeutil_get_reference_point.cc/usr/local/clang/include/absl/strings/internal/cordz_info.h::1831:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2shapeutil_get_reference_point.h::123121::
8In file included from :../src/s2/s2shape.h :25warning: :
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23 :
1231In file included from  | /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from T/usr/local/clang/include/absl/status/internal/status_internal.h*: 29a:
b/usr/local/clang/include/absl/strings/cord.hs:l927_:n43u:l lwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
ilit  y927_ | u n k n o w n   a r g ) 
        |         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
     289  |  # dCeofridnRee pa*b salb_snlu_lnlualblialbiltey _ruenpk)n;o
w      n|                                            ^_
Nul/usr/local/clang/include/absl/base/nullability.hl:_257u:n23s:p enote: cexpanded from macro 'absl_nullable'i
fi  e257d | 
#      d| e                                 ^f
ine absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     voIn file included from is2/s2shapeutil_coding.ccd: 18S:
wIn file included from ../src/s2/s2shapeutil_coding.ha:p44(:
IIn file included from n../src/s2/s2coder.hl:i23n:
eIn file included from R/usr/local/clang/include/absl/status/status.he:p67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31r:
hs/usr/local/clang/include/absl/synchronization/mutex.h):;1241
:      12| :                         ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:  1241note:  | expanded from macro 'absl_nonnull' 
     241b | o#odle f(i*naeb salb_snlo_nnnounlnlu lflu n_cN)o(nTn*u lalb
s      l| _                     ^n
ullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2shapeutil_get_reference_point.cc22::18 :
In file included from note: ../src/s2/s2shapeutil_get_reference_point.hexpanded from macro 'absl_nonnull':
21:
In file included from   ../src/s2/s2shape.h241: | 25#:
dIn file included from e../src/s2/s2coder.hf:i23n:
eIn file included from  /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:4918:
In file included from  | ../src/s2/s2shapeutil_get_reference_point.h:21 :
 In file included from A../src/s2/s2shape.hB:S25L:
_In file included from L../src/s2/s2coder.hO:G23_:
IIn file included from N/usr/local/clang/include/absl/status/status.hT:E67R:
NIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hL:_29C:
H/usr/local/clang/include/absl/strings/cord.hE:C935K:_11O:P (warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
eck_  E935Q | ,   = = ,c hvaarl*1 ,a bvsall_1n_otnenxutl,l  vsaelt2_,d avtaal(2s_itzeex_tt) 
n      )|   ^;
  // /usr/local/clang/include/absl/log/internal/check_op.hW:rite 68d:a22t:a  note: texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'o
 the    68r | e s uwlhti
l      e|            ^(
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneuflilnaeb laeb salb_snlo_nlnougl_li n_tNeornnnaull_lc
h      e| c                     ^k
_op_result           \
      | In file included from                      ^s2/s2shapeutil_get_reference_point.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2shapeutil_get_reference_point.h::25721::
23In file included from :../src/s2/s2shape.h :25note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2coder.h:23  :
257In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s937l:_35n:u lwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
ble   937_ | N u l l aabblsel
:      :| c                      ^o
rd_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shape_nesting_query.cc:26:
../src/s2/util/bitmap/bitmap.h:394:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_get_reference_point.cc../src/s2/base/logging.h::1836:
:In file included from 21../src/s2/s2shapeutil_get_reference_point.h:: 21:
note: In file included from expanded from macro 'S2_CHECK_EQ'../src/s2/s2shape.h
:25:
In file included from    ../src/s2/s2coder.h36: | 23#:
dIn file included from e/usr/local/clang/include/absl/status/status.hf:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hS:229_:
C/usr/local/clang/include/absl/strings/cord.hH:E938C:K35_:E Qwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
HEC  K938_ | E Q 
        | a                    ^b
sl/usr/local/clang/include/absl/log/check.h:::118c:o3r:d _note: iexpanded from macro 'CHECK_EQ'n
ter  n118a | l : :ACBoSrLd_RLeOpG*_ IaNbTsElR_NnAoLn_nCuHlElC Ka_sE_Qt_rIeMeP(L)( (cvoanls1t);,
       #| v                                  ^a
l1/usr/local/clang/include/absl/base/nullability.h,: 241(:v22a:l 2note: )expanded from macro 'absl_nonnull',
 #  v241a | l#2d)e
f      i| n  ^e
 a/usr/local/clang/include/absl/log/internal/check_impl.hb:s49l:_3n:o nnote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'u
ll    _49N | o n nAuBlSlL
_      L| O                     ^G
_INTERNAL_CHEIn file included from Cs2/s2shapeutil_get_reference_point.ccK:_18O:
PIn file included from (../src/s2/s2shapeutil_get_reference_point.hC:h21e:
cIn file included from k../src/s2/s2shape.h_:E25Q:
,In file included from  ../src/s2/s2coder.h=:=23,:
 In file included from v/usr/local/clang/include/absl/status/status.ha:l671:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hv:a29l:
1/usr/local/clang/include/absl/strings/cord.h_:t939e:x17t:,  warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l2,   939v | a l 2 _ tceoxnts)t
       c| h  ^a
r*/usr/local/clang/include/absl/log/internal/check_op.h :a75b:s61l:_ nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'n
nul   l75  | a s _AcBhSaLr_sL(O)G _cIoNnTsEtR;N
A      L| _                ^C
HE/usr/local/clang/include/absl/base/nullability.hC:K241(::22::a bnote: sexpanded from macro 'absl_nonnull'l
::  i241m | p#ldiecfiitn_ec aasbts<lc_onnosntn uclhla r_*N oanbnsull_ln
o      n| n                     ^u
ll>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2shapeutil_get_reference_point.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shapeutil_get_reference_point.h:21  :
241In file included from  | ../src/s2/s2shape.h#:d25e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 941_:N35o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l
      |                        ^941
 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34L: _warning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
TRI  B961U | T E _ C AvPoTiUdR ESDe_tBTYr(etehOirsE)m)p,t y ( C o r d R e p *   a b s l _ n u l l a b l e\ 
r      e| p                                                   ^,

      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:/usr/local/clang/include/absl/container/internal/common.h23::32 :note: 9expanded from macro 'absl_nullable':
   note: 257macro 'ABSL_INTERNAL_IF_false' defined here | 
#defi   n32e |  #adbesfli_nneu lAlBaSbLl_eI N_TNEuRlNlAaLb_lIeF
_      f| a                      ^l
se(if_satisfied, ...In file included from )s2/s2shapeutil_get_reference_point.cc :_18_:
VIn file included from A../src/s2/s2shapeutil_get_reference_point.h_:A21R:
GIn file included from S../src/s2/s2shape.h_:_25
:
      In file included from | ../src/s2/s2coder.h        ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     voIn file included from is2/s2shapeutil_conversion.ccd: 18E:
mIn file included from p../src/s2/s2shapeutil_conversion.hl:a28c:
eIn file included from T../src/s2/s2polygon.hr:e34e:
(In file included from C../src/s2/mutable_s2shape_index.ho:r30d:
RIn file included from e/usr/local/clang/include/absl/container/btree_map.hp:*67 :
a/usr/local/clang/include/absl/container/internal/btree_container.hb:s542l:_3n:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll r  e542p | ,   MAeBtShLo_dIINdTeEnRtNiAfLi_eXr( imnestehrotd_)o;r
_      a| s                              ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,241 :i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn_ei mapbls,l _&n&o,n ncuolnls t_ N&o,n nfuallls
e      ,| 
                     ^      
|   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |   In file included from  s2/s2shapeutil_get_reference_point.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_get_reference_point.h : 21A:
BIn file included from S../src/s2/s2shape.hL:_25I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:A67T:
TIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hI:B29U:
T/usr/local/clang/include/absl/strings/cord.hE:_972C:A31P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_BY  (972t | h i s ) )v)o i d   E m p l a c e T r e e ( C o r d R e p *  \a
b      s| l                                                   ^_
no/usr/local/clang/include/absl/container/internal/common.hn:n31u:l9l:  rnote: emacro 'ABSL_INTERNAL_IF_true' defined herep
, c   o31n | s#td eIfnilnien eADBaStLa_&I NpTaErReNnAtL,_
I      F| _                              ^t
ru/usr/local/clang/include/absl/base/nullability.he:(241i:f22_:s anote: texpanded from macro 'absl_nonnull'i
sf  i241e | d#,d e.f.i.n)e  iafb_ssla_tniosnfniueldl
       _| N        ^o
nnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30In file included from :
s2/s2shapeutil_get_reference_point.ccIn file included from :/usr/local/clang/include/absl/container/btree_map.h18::
67In file included from :
../src/s2/s2shapeutil_get_reference_point.h/usr/local/clang/include/absl/container/internal/btree_container.h::21542:
:In file included from 3../src/s2/s2shape.h:: 25warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
542In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29A:
B/usr/local/clang/include/absl/strings/cord.hS:L978_:I36N:T Ewarning: Rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
AL_  X978( | i n s e rvto_iodr _CaosmsmiigtnT,r eien(sceornts_to rC_oarsdsRiegpn*_ iambpsll,_ n&u&l,l acbolnes to l&d,_ rfeapl,s
e      ,| 
                                   ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/base/nullability.h
:257:  23543: |   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b stlr_uneu)l;l
a      b| l                  ~~~~~e
 _N/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:a47b:l enote: 
expanded from macro 'ABSL_INTERNAL_X'      
|                       ^
  511 |      In file included from  s2/s2shapeutil_get_reference_point.cc : 18 :
 In file included from A../src/s2/s2shapeutil_get_reference_point.hB:S21L:
_In file included from I../src/s2/s2shape.hN:T25E:
RIn file included from N../src/s2/s2coder.hA:L23_:
AIn file included from T/usr/local/clang/include/absl/status/status.hT:R67I:
BIn file included from U/usr/local/clang/include/absl/status/internal/status_internal.hT:E29_:
C/usr/local/clang/include/absl/strings/cord.hA:P979T:U30R:ED _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(thi  s979) | ) )                                      C o r d R e\p
*       | a                                              ^~~~b
sl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlin/usr/local/clang/include/absl/container/internal/btree_container.he:d545(:C24o:r dwarning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
p*   a545b | s l _ n o n n u l l   t r e e , 
        | f                                      ^a
ls/usr/local/clang/include/absl/base/nullability.he:)241;:
22      :|                         ^note: 
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/btree_container.h:  496241: | 9#:d enote: fmacro 'ABSL_INTERNAL_X' defined herei
ne   a496b | s#ld_enfoinnneu lAlB S_LN_oInNnTuElRlN
A      L| _                     ^X
(Func, Callee, KQIn file included from us2/s2shapeutil_get_reference_point.cca:l18,:
 In file included from M../src/s2/s2shapeutil_get_reference_point.hQ:u21a:
lIn file included from ,../src/s2/s2shape.h :K25V:
aIn file included from l../src/s2/s2coder.hu:e23,:
 In file included from M/usr/local/clang/include/absl/status/status.hV:a67l:
uIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h,: 29.:
./usr/local/clang/include/absl/strings/cord.h.:)984 : 36 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |         ^
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnulalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/s2shapeutil_coding.cc/usr/local/clang/include/absl/strings/cord.h::18985:
:In file included from 30../src/s2/s2shapeutil_coding.h:: 44warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h985: | 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :v29o:
iIn file included from d/usr/local/clang/include/absl/strings/cord.h :A94p:
pIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hn:d31T:
r/usr/local/clang/include/absl/synchronization/mutex.he:e1241(:C34o:r dwarning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
p* a b1241s | l _ n o nbnouolll  (t*raebes,l _MneotnhnoudlIld efnutnicf)i(eTr*  maebtshlo_dn)u;l
l      a| b                             ^i
li/usr/local/clang/include/absl/base/nullability.ht:y241_:u22n:k nnote: oexpanded from macro 'absl_nonnull'w
n)  ,241
 |       #| d                                 ^e
fine/usr/local/clang/include/absl/base/nullability.h :a289b:s34l:_ nnote: oexpanded from macro 'absl_nullability_unknown'n
nul  l289  | _#Ndoenfniunlel 
a      b| s                     ^l
_nullability_unkIn file included from ns2/s2shapeutil_get_reference_point.cco:w18n:
 In file included from _../src/s2/s2shapeutil_get_reference_point.hN:u21l:
lIn file included from _../src/s2/s2shape.hu:n25s:
pIn file included from e../src/s2/s2coder.hc:i23f:
iIn file included from e/usr/local/clang/include/absl/status/status.hd:
67      :
| In file included from                                  ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrepeIn file included from ns2/s2shapeutil_coding.ccd:T18r:
eIn file included from e../src/s2/s2shapeutil_coding.hT:o44I:
nIn file included from l../src/s2/s2coder.hi:n23e:
dIn file included from (/usr/local/clang/include/absl/status/status.hC:o67r:
dIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.he:p29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l1242 :t44r:e ewarning: ,type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

      |                                        ^
 1242/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :t ynote: pexpanded from macro 'absl_nonnull'e
na  m241e |  #adbesfli:n:et yapbes_li_dneonntniutlyl< T_>N:o:ntnyuplel*
       a| b                     ^s
l_nullability_unIn file included from ks2/s2shapeutil_get_reference_point.ccn:o18w:
nIn file included from 
../src/s2/s2shapeutil_get_reference_point.h      :| 21                                           ^:

In file included from ../src/s2/s2shape.h:/usr/local/clang/include/absl/base/nullability.h25::
289In file included from :../src/s2/s2coder.h34::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nullability_unknown':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h289: | 29#:
d/usr/local/clang/include/absl/strings/cord.he:f988i:n37e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_nu  l988l | a b i l ivtoyi_du nPkrneopwenn d_TNruelelT_ouTnrsepee(cCiofrideRde
p      *|                                   ^a
bsl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2shapeutil_coding.ccd:e18f:
iIn file included from n../src/s2/s2shapeutil_coding.he: 44a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                     ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     In file included from Ts2/s2shapeutil_get_reference_point.cc*: 18a:
bIn file included from s../src/s2/s2shapeutil_get_reference_point.hl:_21n:
oIn file included from n../src/s2/s2shape.hn:u25l:
lIn file included from  ../src/s2/s2coder.ho:b23j:
eIn file included from c/usr/local/clang/include/absl/status/status.ht:,67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h       ^:
29:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h::241989::2231::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #989d | e f i n ev oaibds lP_rneopnennudlTlr e_eN(oCnonrudlRle
p      *|                       ^a
bsl_nonnull tree, MethodIIn file included from ds2/s2shapeutil_coding.cce:n18t:
iIn file included from f../src/s2/s2shapeutil_coding.hi:e44r:
 In file included from m../src/s2/s2coder.he:t23h:
oIn file included from d/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                              ^:
29:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hnote: :expanded from macro 'absl_nonnull'31
:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 1250#:d43e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab s1250l | _ n o n nbuololl  _(Naobnsnlu:l:lt
y      p| e                     ^_
identity<T>::type::* absl_nonnullIn file included from  s2/s2shapeutil_get_reference_point.ccm:e18t:
hIn file included from o../src/s2/s2shapeutil_get_reference_point.hd:)21(:
)In file included from )../src/s2/s2shape.h
:      25| :
                                          ^In file included from 
../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/status.h::2267::
 In file included from note: /usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull':
29:
  /usr/local/clang/include/absl/strings/cord.h241: | 994#:d30e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s994l | _ n o n nvuolild  _CNoopnynTuol(ls
t      d| :                     ^:
string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2shapeutil_coding.cc      :| 18                     ^:

In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14:In file included from  s2/s2shapeutil_get_reference_point.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2shapeutil_get_reference_point.h:21 :
1259In file included from  | ../src/s2/s2shape.h : 25 :
 In file included from c../src/s2/s2coder.ho:n23s:
tIn file included from  /usr/local/clang/include/absl/status/status.hT:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n999n:u28l:l  warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
jec  t999, | 
        |               ^ 
vo/usr/local/clang/include/absl/base/nullability.hi:d241 :C22o:p ynote: Texpanded from macro 'absl_nonnull'o
Ar  r241a | y#(dcehfairn*e  aabbssll__nnoonnnnuullll  d_sNto)n ncuolnls
t      ;| 
                     ^      
|                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2shapeutil_coding.cce: 18a:
bIn file included from s../src/s2/s2shapeutil_coding.hl:_44n:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from  /usr/local/clang/include/absl/status/status.h_:N67o:
nIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hu:l29l:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                     ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identIn file included from is2/s2shapeutil_get_reference_point.cct:y18<:
TIn file included from >../src/s2/s2shapeutil_get_reference_point.h:::21t:
yIn file included from p../src/s2/s2shape.he::25::
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
m/usr/local/clang/include/absl/strings/cord.he:t1012h:o37d:) (warning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |                                           ^
 1012/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :absl::cord_internal::CordzInfo* absl_nuIn file included from ls2/s2shape_nesting_query.ccl:a26b:
le../src/s2/util/bitmap/bitmap.h :c766o:r3d:z _warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
fo()   766c | o n sSt2 _{C
H      E| C                                    ^K
_E/usr/local/clang/include/absl/base/nullability.hQ:(257b:i23t:s (note: )expanded from macro 'absl_nullable',
 o  t257h | e#rd.ebfiitnse( )a)b;s
l      _| n  ^u
lla../src/s2/base/logging.hb:l36e: 21_:N unote: lexpanded from macro 'S2_CHECK_EQ'l
ab   l36e | 
#      d| e                      ^f
ine S2_CHECK_EQ CHECK_In file included from Es2/s2shapeutil_get_reference_point.ccQ:
18      :
| In file included from                     ^../src/s2/s2shapeutil_get_reference_point.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2shape.h::11825::
3In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'CHECK_EQ'In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h118: | 29 :
 /usr/local/clang/include/absl/strings/cord.hA:B1017S:L51_:L Owarning: Gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INTE R1017N | A L _ C HvEoCiKd_ EsQe_tI_McPoLr(d(zv_ailn1f)o,( c#ovradl_1i,n t(evranla2l):,: C#ovradlz2I)n
f      o| *  ^ 
ab/usr/local/clang/include/absl/log/internal/check_impl.hs:l49_:n3o: nnote: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'n
ull c   o49r | d z _AiBnSfLo_)L O{G
_      I| N                                                  ^T
ERN/usr/local/clang/include/absl/base/nullability.hA:L241_:C22H:E Cnote: Kexpanded from macro 'absl_nonnull'_
OP(  C241h | e#cdke_fEiQn,e  =a=b,s lv_anlo1n,n uvlall 1__Ntoenxntu,l lv
a      l| 2                     ^,
 val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nIn file included from us2/s2shapeutil_get_reference_point.ccl:l18a:
bIn file included from l../src/s2/s2shapeutil_get_reference_point.he: 21_:
NIn file included from u../src/s2/s2shape.hl:l25a:
bIn file included from l../src/s2/s2coder.he:
23      :
| In file included from                       ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull repIn file included from ,s2/s2shape_nesting_query.cc
:      26| :
                                                       ^
../src/s2/util/bitmap/bitmap.h:766/usr/local/clang/include/absl/base/nullability.h::3241:: 22:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nonnull'
../src/s2/base/logging.h  :24136 | :#21d:e fnote: iexpanded from macro 'S2_CHECK_EQ'n
e a   b36s | l#_dneofninnuel lS 2__NCoHnEnCuKl_lE
Q       | C                     ^H
ECK_EQ
      |                     ^
/usr/local/clang/include/absl/log/check.h:118In file included from :s2/s2shapeutil_get_reference_point.cc3::18 :
In file included from note: ../src/s2/s2shapeutil_get_reference_point.hexpanded from macro 'CHECK_EQ':
21:
In file included from   ../src/s2/s2shape.h118: | 25 :
 In file included from A../src/s2/s2coder.hB:S23L:
_In file included from L/usr/local/clang/include/absl/status/status.hO:G67_:
IIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hT:E29R:
N/usr/local/clang/include/absl/strings/cord.hA:L1050_:C45H:E Cwarning: Ktype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
EQ_I M1050P | L ( ( v a l 1 ) ,   # v a l 1 ,   ( v a l 2 ) ,   #avbasll2:):
s      t| r  ^i
ng/usr/local/clang/include/absl/log/internal/check_impl.h_:v49i:e3w:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'b
sl_   n49o | n n uAlBlS Lf_rLaOgGm_eInNtT)E;R
N      A| L                                            ^_
CH/usr/local/clang/include/absl/base/nullability.hE:C241K:_22O:P (note: Cexpanded from macro 'absl_nonnull'h
ec  k241_ | E#Qd,e f=i=n,e  vaabls1l,_ nvoanln1u_ltle x_tN,o nvnaull2l,
       v| a                     ^l
2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |  In file included from  s2/s2shapeutil_get_reference_point.ccA:B18S:
LIn file included from _../src/s2/s2shapeutil_get_reference_point.hL:O21G:
_In file included from I../src/s2/s2shape.hN:T25E:
RIn file included from N../src/s2/s2coder.hA:L23_:
CIn file included from H/usr/local/clang/include/absl/status/status.hE:C67K:
(In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h::a29b:
s/usr/local/clang/include/absl/strings/cord.hl::1054::i37m:p lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
it_ c1054a | s t < c o n satb sclh:a:rc*o radb_siln_tneornnnaull:l:>C(o r d R e p\*
       a| b                                                            ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'r
ep  ,241
 |       #| d                                    ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509In file included from  | s2/s2shapeutil_get_reference_point.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_get_reference_point.h : 21 :
 In file included from  ../src/s2/s2shape.hA:B25S:
LIn file included from _../src/s2/s2coder.hI:N23T:
EIn file included from R/usr/local/clang/include/absl/status/status.hN:A67L:
_In file included from A/usr/local/clang/include/absl/status/internal/status_internal.hT:T29R:
I/usr/local/clang/include/absl/strings/cord.hB:U1078T:E33_:C Awarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
U R1078E | D _ BaYb(stlh:i:sc)o)r,d _ i n t e r n a l : : C o r d R e p *   a b s l\_
n      o| n                                                   ^n
ull /usr/local/clang/include/absl/container/internal/common.hT:a31k:e9R:e pnote: (macro 'ABSL_INTERNAL_IF_true' defined here)
 co   n31s | t#&d;e
f      i| n                                ^e
 A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NA  L241_ | I#Fd_etfriunee( iafb_ssla_tniosnfniueldl,  _.N.o.n)n uilfl_
s      a| t                     ^i
sfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2shapeutil_conversion.cc29::
18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1079../src/s2/s2shapeutil_conversion.h::3328::
 In file included from warning: ../src/s2/s2polygon.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
34:
In file included from ../src/s2/mutable_s2shape_index.h :107930 | :
 In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h:::544c:o3r:d _warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ternal  :544: | C o rAdBRSeLp_*I NaTbEsRlN_AnLo_nXn(uilnls eTratk_eoRre_pa(s)s i&g&n;,
       i| n                                ^s
er/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  _241i | m#pdle,f i&n&e,  acbosnls_tn o&n,n utlrlu e_,N
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll  
545       | |                       ^ 
                false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3In file included from :s2/s2shapeutil_get_reference_point.cc :warning: 18passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2shapeutil_get_reference_point.h/usr/local/clang/include/absl/container/internal/btree_container.h::21511:
:In file included from 52../src/s2/s2shape.h:: 25:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :51167 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1116 : 37A:B Swarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
INTE R1116N | A L _cAoTnTsRtI BcUrTcE__iCnAtPeTrUnRaElD:_:BCYr(ctChoirsd)S)t)a t e* ab s l _ n u l l a b l e   M a y b e G e t C r\c
C      o| r                                                   ^d
St/usr/local/clang/include/absl/container/internal/common.ha:t32e:(9):  cnote: omacro 'ABSL_INTERNAL_IF_false' defined heren
st;   
32       | | #                                    ^d
efi/usr/local/clang/include/absl/base/nullability.hn:e257 :A23B:S Lnote: _expanded from macro 'absl_nullable'I
NT  E257R | N#AdLe_fIiFn_ef aalbssel(_infu_lslaatbilsef i_eNdu,l l.a.b.l)e 
_      _| V                      ^A
_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this) note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2shape_nesting_query.cc:: 26note: :
expanded from macro 'absl_nonnull'
../src/s2/util/bitmap/bitmap.h:  889241: | 3#:d ewarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ne   a889b | s l _Sn2o_nCnHuElClK __LNEo(nennudl,l 
s      i| z                     ^e
_);
      In file included from | s2/s2shapeutil_coding.cc  ^:
18:
In file included from ../src/s2/base/logging.h../src/s2/s2shapeutil_coding.h::3944::
21In file included from :../src/s2/s2coder.h :note: 23expanded from macro 'S2_CHECK_LE':

In file included from /usr/local/clang/include/absl/status/status.h:   6739:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
iIn file included from n/usr/local/clang/include/absl/strings/cord.he: 94S:
2In file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hC:H31E:
C/usr/local/clang/include/absl/synchronization/mutex.hK:_1293L:E62 :C Hwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
K_L E1293
 |       v| o                    ^i
d /usr/local/clang/include/absl/log/check.hR:e122g:i3s:t enote: rexpanded from macro 'CHECK_LE'M
ute  x122T | r a cAeBrS(Lv_oLiOdG _(I*NaTbEsRlN_AnLo_nCnHuElClK _fLnE)_(IcMoPnLs(t( vcahla1r)*,  a#bvsall_1n,o n(nvualll2 )m,s g#,v
a      l| 2                                                             ^)

      | /usr/local/clang/include/absl/base/nullability.h  ^:
241:/usr/local/clang/include/absl/log/internal/check_impl.h22::53 :3note: :expanded from macro 'absl_nonnull' 
note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL'  
241 | #   d53e | f i nAeB SaLb_sLlO_Gn_oInNnTuElRlN A_LN_oCnHnEuClKl_
O      P| (                     ^C
heck_LE,In file included from  s2/s2shapeutil_coding.cc<:=18,:
 In file included from v../src/s2/s2shapeutil_coding.ha:l441:
,In file included from  ../src/s2/s2coder.hv:a23l:
1In file included from _/usr/local/clang/include/absl/status/status.ht:e67x:
tIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :v29a:
lIn file included from 2/usr/local/clang/include/absl/strings/cord.h,: 94v:
aIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h2:_31t:
e/usr/local/clang/include/absl/synchronization/mutex.hx:t1294):
62      :|    ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:68:22:  1294note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' 
       68  |      w h i l e   ( c o n s t   c h a r *   a b s l _ n u l l a b l e   a b s l _ l o gc_oinnstte rvnoaild_*c haebcskl__onpo_nrneuslull to b j , 
        |                                                               ^ 
  /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                     ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/base/nullability.h
:257  :24123 | :# dnote: eexpanded from macro 'absl_nullable'f
in  e257  | a#bdself_innoen naublsll __nNuolnlnaubllle
       _| N                     ^u
llable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
) 1146, |  C o r d R e p *   a b s l _ n o n n u l l   N e\w
E      x| t                                                   ^e
rnalRep(/usr/local/clang/include/absl/container/internal/common.ha:b31s:l9::: snote: tmacro 'ABSL_INTERNAL_IF_true' defined herer
ing_v   i31e | w# ddeaftian,e
       A| B         ^S
L_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'I
F_  t241r | u#ed(eiffi_nsea taibssfli_endo,n n.u.l.l)  _iNfo_nsnautlils
f      i| e                     ^d

      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &In file included from &s2/s2shapeutil_get_reference_point.cc,: 18c:
oIn file included from n../src/s2/s2shapeutil_get_reference_point.hs:t21 :
&In file included from ,../src/s2/s2shape.h :t25r:
uIn file included from e../src/s2/s2coder.h,:
23      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/status/status.h
:67  :
547In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1159 : 17 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1159  | tirnulei)n;e
       C| o                  ~~~~~r
dRe/usr/local/clang/include/absl/container/internal/btree_container.hp:*509 :a47b:s lnote: _expanded from macro 'ABSL_INTERNAL_X'n
onnu  l509l |   N e w E x t e r n aAlBRSeLp_(I
N      T| E                ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241A:T22T:R Inote: Bexpanded from macro 'absl_nonnull'U
TE  _241C | A#PdTeUfRiEnDe_ BaYb(stlh_inso)n)n,u l l   _ N o n n u l l 
        |                       ^ 
        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_In file included from os2/s2shapeutil_get_reference_point.ccr:_18a:
sIn file included from s../src/s2/s2shapeutil_get_reference_point.hi:g21n:
_In file included from i../src/s2/s2shape.hm:p25l:
,In file included from  ../src/s2/s2coder.h&:&23,:
 In file included from c/usr/local/clang/include/absl/status/status.ho:n67s:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h&:,29 :
tr/usr/local/clang/include/absl/strings/cord.hu:e1183,:
47      :|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  547 |    1183  |                               t r u e ) ; 
        |                    ~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
Cor  d511R | e p *   a b s l _ n uAlBlSaLb_lIeN TrEeRpN)A
L      _| A                                              ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Cnote: Aexpanded from macro 'absl_nullable'P
TU  R257E | D#_dBeYf(itnhei sa)b)s)l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
\
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_aIn file included from ss2/s2shapeutil_get_reference_point.ccs:i18g:
nIn file included from _../src/s2/s2shapeutil_get_reference_point.hi:m21p:
lIn file included from ,../src/s2/s2shape.h :&25&:
,In file included from  &../src/s2/s2coder.h&, f:a23l:
sIn file included from e/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from   ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/btree_container.h::1222509::5252::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

  509 |    1222  |  i n l i n e  AvBoSiLd_ ICNoTrEdR:N:AILn_lAiTnTeRRIeBpU:T:ES_wCaApP(TCUoRrEdD:_:BIYn(ltihniesR)e)p,*   a b s l _ n o n n u l l   r h s )   { 
        |                                                     ^\

      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/container/internal/common.h:: 32:note: 9expanded from macro 'absl_nonnull':
 note:   macro 'ABSL_INTERNAL_IF_false' defined here241
 | #d   e32f | i#ndee faibnsel _AnBoSnLn_uIlNlT E_RNNoAnLn_uIlFl_
f      a| l                     ^s
e(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impIn file included from ls2/s2shapeutil_get_reference_point.cc,: 18&:
&In file included from ,../src/s2/s2shapeutil_get_reference_point.h :&21&:
,In file included from  ../src/s2/s2shape.hf:a25l:
sIn file included from e../src/s2/s2coder.h,:
23      :
| In file included from   ^/usr/local/clang/include/absl/status/status.h
:67/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511/usr/local/clang/include/absl/status/internal/status_internal.h::5229::
 /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'ABSL_INTERNAL_X'1230
:20:   511warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     1230  |  i n l iAnBeS Lc_oInNsTtE RcNhAaLr_*A TaTbRsIlB_UnTuEl_lCaAbPlTeU RCEoDr_dB:Y:(Itnhliisn)e)R)e p : : d a t a ( )   c o n s t   { 
        |                     ^ 
  /usr/local/clang/include/absl/base/nullability.h\:257
:      23| :                                                   ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/common.h
:32  :2579 | :# dnote: emacro 'ABSL_INTERNAL_IF_false' defined heref
ine    32a | b#sdle_fniunlel aAbBlSeL __INNuTlElRaNbAlLe_
I      F| _                      ^f
alse(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const chIn file included from as2/s2shapeutil_conversion.ccr:*18 :
aIn file included from b../src/s2/s2shapeutil_conversion.hs:l28_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :C30o:
rIn file included from d/usr/local/clang/include/absl/container/btree_map.h:::67I:
n/usr/local/clang/include/absl/container/internal/btree_container.hl:i551n:e79R:e pwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
as_c  h551a | r s (A)B ScLo_nIsNtT E{R
N      A| L                   ^_
X(/usr/local/clang/include/absl/base/nullability.hi:n241s:e22r:t _note: oexpanded from macro 'absl_nonnull'r
_a  s241s | i#gdne,f iinnes earbts_lo_rn_oansnsuilgln __iNmopnln,u l&l&
,       | &                     ^&
, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(FunIn file included from cs2/s2shapeutil_get_reference_point.cc,: 18C:
aIn file included from l../src/s2/s2shapeutil_get_reference_point.hl:e21e:
,In file included from  ../src/s2/s2shape.hK:Q25u:
aIn file included from l../src/s2/s2coder.h,: 23M:
QIn file included from u/usr/local/clang/include/absl/status/status.ha:l67,:
 In file included from K/usr/local/clang/include/absl/status/internal/status_internal.hV:a29l:
u/usr/local/clang/include/absl/strings/cord.he:,1239 :M38V:a lwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
, . .1239. | )i n l i n e\ 
a      b| s        ^l
::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTIn file included from Es2/s2shapeutil_get_reference_point.ccR:N18A:
LIn file included from ../src/s2/s2shapeutil_get_reference_point.h_:X21(:
iIn file included from n../src/s2/s2shape.hs:e25r:
tIn file included from _../src/s2/s2coder.ho:r23_:
aIn file included from s/usr/local/clang/include/absl/status/status.hs:i67:
gIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.h,: 29i:
n/usr/local/clang/include/absl/strings/cord.hs:e1245r:t38_:o rwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
ssig n1245_ | iimnplli,n e& &a,b s&l&:,: cfoarlds_ei,n tterrunea)l;:
:      C| o  ^r
dR/usr/local/clang/include/absl/container/internal/btree_container.he:p509*: 52a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
nul  l509a | b l e   C o r d : : IAnBlSiLn_eIRNeTpE:R:NtArLe_eA(T)T
R      I| B                                     ^U
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
TEIn file included from _CAPTs2/s2shape_nesting_query.ccU:R26E:
D_B../src/s2/util/bitmap/bitmap.hY:(889t:h3i:s )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
      ../src/s2/base/logging.h : 39 : 21 :   note:  expanded from macro 'S2_CHECK_LE' 
         39  |  # d\e
f      i| n                                                   ^e
 S2_C/usr/local/clang/include/absl/container/internal/common.hH:E32C:K9_:L Enote:  macro 'ABSL_INTERNAL_IF_false' defined hereC
HECK   _32L | E#
d      e| f                    ^i
ne /usr/local/clang/include/absl/log/check.hA:B122S:L3_:I Nnote: Texpanded from macro 'CHECK_LE'E
RNA  L122_ | I F _AfBaSlLs_eL(OiGf__IsNaTtEiRsNfAiLe_dC,H E.C.K._)L E___IVMAP_LA(R(GvSa_l_1
)      ,|          ^#
val1, (val2), #val2In file included from )s2/s2shapeutil_conversion.cc
:      18| :
  ^In file included from 
../src/s2/s2shapeutil_conversion.h:28/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 53../src/s2/s2polygon.h::334::
 In file included from note: ../src/s2/mutable_s2shape_index.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL':
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h   :5367 | :
 /usr/local/clang/include/absl/container/internal/btree_container.h :A551B:S3L:_ Lwarning: Opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]G
_INT  E551R | N A LA_BCSHLE_CIKN_TOEPR(NCAhLe_cXk(_iLnEs,e r<t=_,o rv_aals1s,i gvna,l 1i_ntseexrtt,_ ovra_la2s,s ivganl_2i_mtpelx,t )&
&      ,|    ^&
&,/usr/local/clang/include/absl/log/internal/check_op.h :f75a:l61s:e ,note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP't
rue   )75; | 
        | A  ^B
SL_/usr/local/clang/include/absl/container/internal/btree_container.hL:O511G:_52I:N Tnote: Eexpanded from macro 'ABSL_INTERNAL_X'R
NAL_  C511H | E C K ( : : a b s l :A:BiSmLp_lIiNcTiEtR_NcAaLs_tA<TcToRnIsBtU TcEh_aCrA*P TaUbRsElD__nBoYn(ntuhlils>)() )        \ 
        |                                                              ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  | \#
d      e| f                                                   ^i
ne/usr/local/clang/include/absl/container/internal/common.h :a31b:s9l:_ nnote: omacro 'ABSL_INTERNAL_IF_true' defined heren
nul   l31  | _#Ndoenfniunlel 
A      B| S                     ^L
_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CIn file included from As2/s2shape_nesting_query.ccP:T26U:
R../src/s2/util/bitmap/bitmap.hE:D890_:B3Y:( twarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
s))  )890  |      S 2 _ C H E C K _ L E ( s t a r t ,   e n\d
)      ;| 
                                              ^~~~      
|   ^
../src/s2/base/logging.h:39:21: note: expanded from macro 'S2_CHECK_LE'
   39 | #define S2_CHECK_LE CHECK_LE
      |                     ^
/usr/local/clang/include/absl/log/check.h:122:3: note: expanded from macro 'CHECK_LE'
  122 |   ABSL_LOG_INTERNAL_CHECK_LE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:53:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL'
   53 |   ABSL_LOG_INTERN/usr/local/clang/include/absl/container/internal/btree_container.hA:L552_:C79H:E Cwarning: Kpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
OP(C  h552e | c k _ALBES,L _<I=N,T EvRaNlA1L,_ Xv(ailn1s_etretx_to,r _vaasls2i,g nv,a li2n_steerxtt_)o
r      _| a  ^s
si/usr/local/clang/include/absl/log/internal/check_op.hg:n68_:i22m:p lnote: ,expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' 
&&,    68& | & ,  wthriulee,  (fcaolnsset) ;c
h      a| r                                                                              ^*
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s496l:_9n:u lnote: lmacro 'ABSL_INTERNAL_X' defined herea
ble   496a | b#sdle_flionge_ iAnBtSeLr_nIaNlT_EcRhNeAcLk__Xo(pF_urnecs,u lCta l l e e ,   K Q u a l\,
       M| Q                     ^u
al/usr/local/clang/include/absl/base/nullability.h,: 257K:V23a:l unote: eexpanded from macro 'absl_nullable',
 M  V257a | l#udee,f i.n.e. )a b s l _ n\u
l      l| a        ^b
le _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INIn file included from Ts2/s2shape_nesting_query.ccE:R26N:
A../src/s2/util/bitmap/bitmap.hL:_890X:(3i:n swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
t_o../src/s2/base/logging.hr:_39a:s21s:i gnote: nexpanded from macro 'S2_CHECK_LE',
 in   s39e | r#td_eofri_naes sSi2g_nC_HiEmCpK_LE CHECK_LE
      |                     ^
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 109s2/s2shapeutil_get_reference_point.cc | :v18o:
iIn file included from d../src/s2/s2shapeutil_get_reference_point.h :C21o:
pIn file included from y../src/s2/s2shape.hC:o25r:
dIn file included from T../src/s2/s2coder.ho:S23t:
rIn file included from i/usr/local/clang/include/absl/status/status.hn:g67(:
cIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:s29t:
 /usr/local/clang/include/absl/strings/cord.hC:o1268r:d51&:  swarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
, st d1268: | :isntlriinneg *v oaibds lC_onrodn:n:uIlnll idnsetR)e;p
:      :| E                                                    ^m
plac/usr/local/clang/include/absl/base/nullability.he:T241r:e22e:( Cnote: oexpanded from macro 'absl_nonnull'r
dR  e241p | *# daebfsiln_en oanbnsull_ln ornenpu,l
l       | _                                                  ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2shapeutil_coding.ccn:n18u:
lIn file included from l../src/s2/s2shapeutil_coding.h
:      44| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:110:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
In file included from       s2/s2shapeutil_get_reference_point.cc| :                                                      ^18
:
In file included from ../src/s2/s2shapeutil_get_reference_point.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22../src/s2/s2shape.h:: 25note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2coder.h:23  :
241In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
a/usr/local/clang/include/absl/strings/cord.hb:s1275l:_51n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _ N1275o | ninnulliln
e       | v                     ^o
id Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const In file included from Cs2/s2shapeutil_get_reference_point.cco:r18d:
&In file included from  ../src/s2/s2shapeutil_get_reference_point.hs:r21c:
,In file included from  ../src/s2/s2shape.hs:t25d:
:In file included from :../src/s2/s2coder.hs:t23r:
ing* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from /usr/local/clang/include/absl/log/check.h../src/s2/s2coder.h::12223::
3In file included from :/usr/local/clang/include/absl/status/status.h :note: 67expanded from macro 'CHECK_LE':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h  :122588 | : 17 :A BSwarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
LOG  _588I | N T E R NcAoLn_sCtH ECCoKr_dL*E _aIbMsPlL_(n(ovnanlu1l)l,  c#ovradl_1;,
       (| v                ^a
l2/usr/local/clang/include/absl/base/nullability.h):,241 :#22v:a lnote: 2expanded from macro 'absl_nonnull')

        | 241  ^ | 
#de/usr/local/clang/include/absl/log/internal/check_impl.hf:i53n:e3 :a bnote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL'l
_no   n53n | u l lA B_SNLo_nLnOuGl_lI
N      T| E                     ^R
NAL_CHECK_OP(Check_LE, <=, val1, val1_text, val2, valIn file included from 2s2/s2shapeutil_coding.cc_:t18e:
xIn file included from t../src/s2/s2shapeutil_coding.h):
44      :
| In file included from   ^../src/s2/s2coder.h
:23:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/status.h75::6761:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'29
:
/usr/local/clang/include/absl/strings/cord.h:   64175: | 33 :  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_L  O641G | _ I N T EuRsNiAnLg_ CpHoEiCnKt(e:r: a=b sclo:n:sitm pclhiacri*t _acbasslt_<ncoonnnsutl lc;h
a      r| *                                ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nunote: lexpanded from macro 'absl_nonnull'l
>(   241  |  # d e\f
i      n| e                                                            ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_build_polygon_boundaries.cc::24118::
22In file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shape.h:25  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n86u:
ll/usr/local/clang/include/absl/strings/cord_analysis.h :_32N:o47n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
   32 | size_t GetEstimatedMemIn file included from oIn file included from s2/s2shapeutil_coding.ccrs2/s2shape_nesting_query.cc:y:18U26:
s:
In file included from a../src/s2/s2shapeutil_coding.h../src/s2/util/bitmap/bitmap.hg:e:44(921:
c:In file included from o3../src/s2/s2coder.hn::s 23twarning: :
 type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from C
/usr/local/clang/include/absl/status/status.ho:r67  d:
R921In file included from e | p/usr/local/clang/include/absl/status/internal/status_internal.h *  S:a229b_:
sC/usr/local/clang/include/absl/strings/cord.hlH:_E674nC:Ko37_nLn:uE (llwarning: litype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] m
rietp  ,)674;  | 
s       i z| es_                                              ^t)
a;t
/usr/local/clang/include/absl/base/nullability.hi      :c| 241   ^:v
22o:i../src/s2/base/logging.h d:note:  39expanded from macro 'absl_nonnull'A:
d21v  :a241 n | note: c#expanded from macro 'S2_CHECK_LE'e
(C   dh39ea | fr#iIdnteefei nraea btSs2ol_r_Cn*Ho EnaCnbKsu_llL_lEn  o_CnNHnEoCunKnl_uLlEl 
li      
t|                           ^,| 
                      ^s
/usr/local/clang/include/absl/log/check.hi:z122e:_3t:  nnote: _expanded from macro 'CHECK_LE'b
yte  s122) | ; 
       AIn file included from | Bs2/s2shapeutil_build_polygon_boundaries.ccS                                    ^L:
_18L:
/usr/local/clang/include/absl/base/nullability.hOIn file included from :G../src/s2/s2shapeutil_build_polygon_boundaries.h_241:I:23N22T:
E:In file included from R ../src/s2/s2shape.hNnote: A:expanded from macro 'absl_nonnull'L25
_:
C  HIn file included from 241E../src/s2/s2coder.h | C:K#_23dL:
EIn file included from e_/usr/local/clang/include/absl/status/status.hIf:Mi67Pn:
LeIn file included from ( (/usr/local/clang/include/absl/status/internal/status_internal.hav:ab29ls1l:
)_In file included from ,n/usr/local/clang/include/absl/strings/cord.h o#:n86vnau:
ll/usr/local/clang/include/absl/strings/cord_analysis.h1l,:  (50_v:aNl492o):n,  n#warning: uvtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]la
ll
2   )      50
|  |                            ^s| 
  ^i
ze/usr/local/clang/include/absl/log/internal/check_impl.h_:t53 :G3e:t Mnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL'r
ePr   e53c | i s eAMBeSmLo_rLyOUGs_aIgNeT(EcRoNnAsLt_ CCHoErCdKR_eOpP*( CaIn file included from hbs2/s2shapeutil_coding.ccescl:_kn_18oL:
nEnIn file included from ,u../src/s2/s2shapeutil_coding.hl:l44 :
In file included from rIn file included from ep);
      /usr/local/clang/include/absl/status/status.hl| :                                                ^67
,:
 /usr/local/clang/include/absl/base/nullability.hIn file included from &:&/usr/local/clang/include/absl/status/internal/status_internal.h241,:: 2922&:
:& /usr/local/clang/include/absl/strings/cord.h,note: : expanded from macro 'absl_nonnull'1301t
:r  56u241:e |  ,warning: # type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]df
eaflisnee) ;a
b       s1301| l  ^ | _i
nnolnin/usr/local/clang/include/absl/container/internal/btree_container.hnu:el509l :v 52_o:iNd o note: nCexpanded from macro 'ABSL_INTERNAL_X'no
urd::lIln
  l      509i|  |                      ^n 
e         ABSL_INTERNAL_ATTIn file included from Rs2/s2shapeutil_build_polygon_boundaries.ccI:B18U:
TIn file included from E../src/s2/s2shapeutil_build_polygon_boundaries.h_:C23A:
PIn file included from T../src/s2/s2shape.hU:R25E:
DIn file included from _../src/s2/s2coder.hB:Y23(:
tIn file included from h/usr/local/clang/include/absl/status/status.hi:s67):
)In file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 86 :
 /usr/local/clang/include/absl/strings/cord_analysis.h : 56 : 56 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        56  | \s
i      z| e                                                   ^_
t GetE/usr/local/clang/include/absl/container/internal/common.hs:t31i:m9a:t enote: dmacro 'ABSL_INTERNAL_IF_true' defined hereF
air   S31h | a#rdeeMfeimnoer yAUBsSaLg_eI(NcToEnRsNtA LC_oIrFd_Rterpu*e (aibfs_ls_antoinsnfuileld ,r e.p.).;)
       i| f                                                       ^_
sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: 
expanded from macro 'absl_nonnull'      
|         ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
Rep::CommitTree(const CordRep* absIn file included from ls2/s2shapeutil_coding.cc_:n18u:
lIn file included from l../src/s2/s2shapeutil_coding.ha:b44l:
eIn file included from  ../src/s2/s2coder.ho:l23d:
_In file included from r/usr/local/clang/include/absl/status/status.he:p67,:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :29                                                       ^:

/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257  :23736: |   note:  expanded from macro 'absl_nullable' 
 cons  t257  | C#odredf*i naeb salb_snlo_nnnuulllla bcloer d__N;u
l      l| a                ^b
le/usr/local/clang/include/absl/base/nullability.h
:      241| :                      ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2shapeutil_get_reference_point.ccl:l18
:
      In file included from | ../src/s2/s2shapeutil_get_reference_point.h                     ^:
21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2shapeutil_coding.ccl:_18n:
oIn file included from n../src/s2/s2shapeutil_coding.hn:u44l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^29
:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2shapeutil_get_reference_point.cca:b18s:
lIn file included from _../src/s2/s2shapeutil_get_reference_point.hn:o21n:
nIn file included from u../src/s2/s2shape.hl:l25 :
_In file included from N../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl:
67      :
| In file included from                      ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2shapeutil_coding.cc67::
18In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2shapeutil_coding.h29::
44:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2coder.h1321::2348:
:In file included from  /usr/local/clang/include/absl/status/status.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h :1321898 | :i27n:l iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 voi  d898  | C o rfdr:i:eInndl icnoenRsetp :C:oCrodpzyITnofAor*r aayb(sclh_anru*l laabbslle_ nGoentnCuolrld zdIsntf)o FcoornTsets t{i
n      g| (                                               ^

      |                           ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::257 :note: 23expanded from macro 'absl_nonnull':
   note: 241expanded from macro 'absl_nullable' | 
#d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnote: expanded from macro 'ABSL_INTERNAL_X'
   <509= | ,   v a l 1 ,   v a lA1B_StLe_xItN,T EvRaNlA2L,_ AvTaTlR2I_BtUeTxEt_)C
A      P| T  ^U
RED_BY(t/usr/local/clang/include/absl/log/internal/check_op.hh:i68s:)22):,  note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' 
         68  |      w h i l e   ( c o n s t\ 
c      h| a                                              ^~~~r
* absl_nullable/usr/local/clang/include/absl/container/internal/btree_container.h :a553b:s3l:_ lwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
g_/usr/local/clang/include/absl/container/internal/btree_container.hi:n511t:e52r:n anote: lexpanded from macro 'ABSL_INTERNAL_X'_
chec  k511_ | o p _ r e s u l t    A B S L _ I N T E R\N
A      L| _                     ^A
TTR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Cnote: Aexpanded from macro 'absl_nullable'P
TU  R257E | D_BY(#tdheifsi)n)e)  a b s l _ n u l l a b l e   _ N u l l a b l e 
\      
|                             ^| 
                                                   ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNALIn file included from _s2/s2shape_nesting_query.ccX:(26i:
n../src/s2/util/bitmap/bitmap.hs:e921r:t3_:o rwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ssi../src/s2/base/logging.hg:n39,: 21i:n snote: eexpanded from macro 'S2_CHECK_LE'r
t_o   r39_ | a#sdseifginn_ei mSp2l_,C H&E&C,K _&L&E,  CtHrEuCeK,_ LtEr
u      e| )                    ^;

      | /usr/local/clang/include/absl/log/check.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
122:3:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 511expanded from macro 'CHECK_LE':
47:   note: 122expanded from macro 'ABSL_INTERNAL_X' | 
  A  B511S | L _ L O G _ I N T E RANBASLL__CIHNETCEKR_NLAEL__IAMTPTLR(I(BvUaTlE1_)C,A P#TvUaRlE1D,_ B(Yv(atlh2i)s,) )#)v a l 2 ) 
        |    ^ 
  /usr/local/clang/include/absl/log/internal/check_impl.h : 53 : 3 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL' 
       53\ | 
        | A                                              ^~~~B
SL_LOG_INTERNAL_CHECK_OP(Check_LE, <=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9In file included from :s2/s2shape_nesting_query.cc :note: 26macro 'ABSL_INTERNAL_IF_false' defined here:

../src/s2/util/bitmap/bitmap.h:933   :323 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine   933A | B S LS_2I_NCTHEERCNKA_LL_EI(Fl_ifmailts,e (siifz_es_a)t;i
s      f| i  ^e
d,../src/s2/base/logging.h :.39.:.21):  _note: _expanded from macro 'S2_CHECK_LE'V
A_   A39R | G#Sd_e_f
i      n| e        ^ 
S2_CHECK_LIn file included from Es2/s2shapeutil_conversion.cc :C18H:
EIn file included from C../src/s2/s2shapeutil_conversion.hK:_28L:
EIn file included from 
../src/s2/s2polygon.h      :| 34                    ^:

In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/check.h::30122:
:In file included from 3/usr/local/clang/include/absl/container/btree_map.h:: 67note: :
expanded from macro 'CHECK_LE'/usr/local/clang/include/absl/container/internal/btree_container.h
:555:3  :122  | warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
ABS  L555_ | L O GA_BISNLT_ERNALI_NCTHEERCNKA_LL_EX_(IiMnPsLe(r(tv_aolr1_)a,s s#ivganl,1 ,i n(svearlt2_)o,r _#avsasli2g)n
_      h| i  ^n
t_/usr/local/clang/include/absl/log/internal/check_impl.hi:m53p:l3,:  cnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL'n
st    &53, | 
        | A  ^B
SL/usr/local/clang/include/absl/container/internal/btree_container.h_:L511O:G52_:I Nnote: Texpanded from macro 'ABSL_INTERNAL_X'E
RNA  L511_ | C H E C K _ O P ( C hAeBcSkL__LIEN,T E<R=N,A Lv_aAlT1T,R IvBaUnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968TE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_sa:31l: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
1_  t968e | x t ,   vvaoli2d,  Evmapll2a_cteeTxrte)e
(      C| o  ^r
dRep* ab/usr/local/clang/include/absl/log/internal/check_op.hs:l68_:n22o:n nnote: uexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'l
l rep,    68M | e t hwohdiIldee n(tciofnisetr  cmheatrh*o da)b;s
l      _| n                              ^u
lla/usr/local/clang/include/absl/base/nullability.hb:l241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
lo  g241_ | i#ndteefrinnael _acbhselc_kn_oonpn_urlels u_lNto n n u l l 
        |                       ^ 
 \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abslIn file included from _s2/s2shapeutil_coding.ccn:u18l:
lIn file included from a../src/s2/s2shapeutil_coding.hb:l44e:
 In file included from _../src/s2/s2coder.hN:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                      ^29
:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:26:
../src/s2/util/bitmap/bitmap.h:933:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_coding.cc:18:
../src/s2/base/logging.hIn file included from :../src/s2/s2shapeutil_coding.h39::4421:
:In file included from  ../src/s2/s2coder.hnote: :expanded from macro 'S2_CHECK_LE'23
:
In file included from /usr/local/clang/include/absl/status/status.h:   6739:
 | In file included from #/usr/local/clang/include/absl/status/internal/status_internal.hd:e29f:
i/usr/local/clang/include/absl/strings/cord.hn:e978 :S362:_ Cwarning: Htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]E
CK_  L978E |   C H E CvKo_iLdE 
C      o| m                    ^m
it/usr/local/clang/include/absl/log/check.hT:r122e:e3(:c onote: nexpanded from macro 'CHECK_LE's
t C  o122r | d R eApB*S La_bLsOlG__nIuNlTlEaRbNlAeL _oClHdE_CrKe_pL,E
_      I| M                                   ^P
L(/usr/local/clang/include/absl/base/nullability.h(:v257a:l231:) ,note:  expanded from macro 'absl_nullable'#
va  l2571 | ,# d(evfailn2e) ,a b#svla_ln2u)l
l      a| b  ^l
e /usr/local/clang/include/absl/log/internal/check_impl.h_:N53u:l3l:a bnote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL'e

      |                       ^   
53 |   ABSL_LOIn file included from Gs2/s2shapeutil_coding.cc_:I18N:
TIn file included from E../src/s2/s2shapeutil_coding.hR:N44A:
LIn file included from _../src/s2/s2coder.hC:H23E:
CIn file included from K/usr/local/clang/include/absl/status/status.h_:O67P:
(In file included from C/usr/local/clang/include/absl/status/internal/status_internal.hh:e29c:
k/usr/local/clang/include/absl/strings/cord.h_:L979E:,30 :< =warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
val  1979, |   v a l 1 _ t e x t ,   v a l 2 ,   v a lC2o_rtdeRxetp)*
       a| b  ^s
l_/usr/local/clang/include/absl/log/internal/check_op.hn:o75n:n61u:l lnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'r
ep,    75c | o n sAtB SCLo_rLdOzGU_pIdNaTtEeRSNcAoLp_eC&H EsCcKo(p:e:,a
b      s| l                             ^:
:i/usr/local/clang/include/absl/base/nullability.hm:p241l:i22c:i tnote: _expanded from macro 'absl_nonnull'c
as  t241< | c#odnesfti nceh aarb*s la_bnsoln_nnuolnln u_lNlo>n(n u l l 
       \| 
                     ^      
|                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2shapeutil_coding.cca:b18s:
lIn file included from _../src/s2/s2shapeutil_coding.hn:o44n:
nIn file included from u../src/s2/s2coder.hl:l23 :
_In file included from N/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl:
29      :
| /usr/local/clang/include/absl/strings/cord.h                     ^:
982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
tisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assiIn file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:gn_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                 In file included from  s2/s2shapeutil_get_reference_point.cc :c18o:
nIn file included from s../src/s2/s2shapeutil_get_reference_point.ht: 21&:
,In file included from  ../src/s2/s2shape.ht:r25u:
eIn file included from ,../src/s2/s2coder.h :t23r:
uIn file included from e/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
  566 | /usr/local/clang/include/absl/strings/cord.h : 1505 : 41 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
         1505  | cionnlsitn_ei tveoriadt oCro(rhdi:n:tC)o pAyBTSoLA_rIrNaTyEIRmNpAlL(_cChOaMrM*A )a;b
s      l| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
onnu/usr/local/clang/include/absl/container/internal/btree_container.hl:l511 :d47s:t )note:  expanded from macro 'ABSL_INTERNAL_X'c
onst   511{ | 
        |                                          ^ 
     /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ERN  A241L | _#AdTeTfRiInBeU TaEb_sClA_PnToUnRnEuDl_lB Y_(Ntohninsu)l)l)
        |                       ^ 
                    \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cIn file included from os2/s2shapeutil_get_reference_point.ccr:d18_:
iIn file included from n../src/s2/s2shapeutil_get_reference_point.ht:e21r:
nIn file included from a../src/s2/s2shape.hl::25::
CIn file included from o../src/s2/s2coder.hr:d23R:
eIn file included from p/usr/local/clang/include/absl/status/status.h*: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
onn/usr/local/clang/include/absl/strings/cord.hu:l1514l: 29T:a kwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ep() & &1514; | 
        |                                  ^ 
co/usr/local/clang/include/absl/base/nullability.hr:d241_:i22n:t enote: rexpanded from macro 'absl_nonnull'n
al  :241: | C#odredfRienpe*  aabbssll__nnoonnnnuullll  _tNroenen)u l{l

            | |                             ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2shapeutil_get_reference_point.cc1120: | 18 :
 In file included from v../src/s2/s2shapeutil_get_reference_point.ho:i21d:
 In file included from C../src/s2/s2shape.ho:p25y:
TIn file included from o../src/s2/s2coder.hA:r23r:
aIn file included from y/usr/local/clang/include/absl/status/status.hI:m67p:
lIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hc:h29a:
r*/usr/local/clang/include/absl/strings/cord.h :a1525b:s29l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null  1525d | s t )   ccoonrsdt_;i
n      t| e                             ^r
na/usr/local/clang/include/absl/base/nullability.hl::241::C22o:r dnote: Rexpanded from macro 'absl_nonnull'e
p*   241a | b#sdle_fnionnen ualbls lt_rneoen)n u{l
l       | _                            ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTIn file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
URED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERIn file included from Ns2/s2shapeutil_build_polygon_boundaries.ccA:L18_:
IIn file included from F../src/s2/s2shapeutil_build_polygon_boundaries.h_:f23a:
lIn file included from s../src/s2/s2shape.he:(25i:
fIn file included from _../src/s2/s2coder.hs:a23t:
iIn file included from s/usr/local/clang/include/absl/status/status.hf:i67e:
dIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :.29.:
.In file included from )/usr/local/clang/include/absl/strings/cord.h :_94_:
VIn file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.h_:A31R:
GS/usr/local/clang/include/absl/synchronization/mutex.h_:_489
:      14| :        ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullabIn file included from ls2/s2shapeutil_coding.cce: 18_:
NIn file included from u../src/s2/s2shapeutil_coding.hl:l44a:
bIn file included from l../src/s2/s2coder.he:
23      :
| In file included from                       ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.hIn file included from :s2/s2shapeutil_build_polygon_boundaries.cc1159::1817:
:In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h:warning: 23:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h :115923 | :
iIn file included from n/usr/local/clang/include/absl/status/status.hl:i67n:
eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hC:o29r:
dIn file included from R/usr/local/clang/include/absl/strings/cord.he:p94*:
 In file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hb:s31l:
_/usr/local/clang/include/absl/synchronization/mutex.hn:o489n:n45u:l lwarning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
ewE  x489t | e r n a l R evpo(i
d       | (                ^*
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   i241n | v#adreifainnte)In file included from  (s2/s2shapeutil_conversion.ccvao:bi18ds*:
 lIn file included from a_b../src/s2/s2shapeutil_conversion.hsn:lo_28nn:
unIn file included from ul../src/s2/s2polygon.hll:al34b i:
l_In file included from Ni../src/s2/mutable_s2shape_index.hto:ny30_n:
uuIn file included from nl/usr/local/clang/include/absl/container/btree_map.hkln:
o67w      :
n| )/usr/local/clang/include/absl/container/internal/btree_container.h                     ^,:

579      :| 3                                            ^:
 warning: /usr/local/clang/include/absl/base/nullability.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
289:34:   note: 579expanded from macro 'absl_nullability_unknown' | 
    A289B | S#Ld_eIfNiTnEeR NaAbLs_lX_(niunlslearbti_loirt_ya_susnikgnno,w ni n_sNeurltl__ourn_sapsesciigfni_ehdi
n      t| _                                 ^i
mpl, &&, const &,
      In file included from | s2/s2shapeutil_build_polygon_boundaries.cc  ^:
18:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2shapeutil_build_polygon_boundaries.h::50923::
52In file included from :../src/s2/s2shape.h :25note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h509: | 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94A:
BIn file included from S/usr/local/clang/include/absl/strings/internal/cordz_info.hL:_31I:
N/usr/local/clang/include/absl/synchronization/mutex.hT:E490R:N13A:L _warning: Atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]T
TRI  B490U | T E _ C A P TvUoRiEdD*_ BaYb(stlh_insu)l)l,a b i l i t y _ u n k n o w n   a r g ) ; 
        |              ^\

      | /usr/local/clang/include/absl/base/nullability.h                                                   ^:
289:34/usr/local/clang/include/absl/container/internal/common.h:: 32:note: 9expanded from macro 'absl_nullability_unknown':
 note:   macro 'ABSL_INTERNAL_IF_false' defined here289
 | #d   e32f | i#ndee faibnsel _AnBuSlLl_aIbNiTlEiRtNyA_Lu_nIkFn_ofwanIn file included from l s2/s2shapeutil_coding.ccs_:eN18u(:
liIn file included from fl../src/s2/s2shapeutil_coding.h__:su44an:
tsIn file included from pie../src/s2/s2coder.hsc:fi23if:
ieeIn file included from dd/usr/local/clang/include/absl/status/status.h,
:       67.| :
                                 ^.In file included from 
./usr/local/clang/include/absl/status/internal/status_internal.h): 29_:
_/usr/local/clang/include/absl/strings/cord.hV:A1183_:A47R:G Swarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
In file included from 
s2/s2shapeutil_build_polygon_boundaries.cc      : | 181183        ^:
 | 
In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h : 23 :
 In file included from  ../src/s2/s2shape.h :In file included from  25s2/s2shapeutil_conversion.cc :
: In file included from 18 ../src/s2/s2coder.h:
 :In file included from  23../src/s2/s2shapeutil_conversion.h :
: In file included from 28 /usr/local/clang/include/absl/status/status.h:
 :In file included from  67../src/s2/s2polygon.h :
 : In file included from 34 /usr/local/clang/include/absl/status/internal/status_internal.h:
 :In file included from  29../src/s2/mutable_s2shape_index.h :
: In file included from 30 /usr/local/clang/include/absl/strings/cord.h:
 :In file included from  94/usr/local/clang/include/absl/container/btree_map.h :
: In file included from 67 /usr/local/clang/include/absl/strings/internal/cordz_info.h:
 :/usr/local/clang/include/absl/container/internal/btree_container.h 31: :
579 /usr/local/clang/include/absl/synchronization/mutex.h: :3C499:o: r35warning: d:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R 
ewarning: ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
   579a |   b 499s  | Al B_ SnvLu_olIliNdaT bEElnReaN bArlLee_DpXe)(b
iu      ng| sL                                              ^eo
rgt(_c/usr/local/clang/include/absl/base/nullability.hoo:rn257_s:at23s :sc ihnote: gaexpanded from macro 'absl_nullable'nr
*,    ia257nb | ss#eldr_entfu_ilolnareb_ laea sbnssailgm_nne_u)hl;il
na      tb_| li                                  ^em
 p_l/usr/local/clang/include/absl/base/nullability.hN,:u 257l&:l&a23b,:l  ecnote: 
oexpanded from macro 'absl_nullable'      n
s| t                         ^257&
 | ,#
d      e| f  ^i
ne/usr/local/clang/include/absl/container/internal/btree_container.h :a511b:s52l:_ nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
lab  l511e |   _ N u l l a b l e 
A      B| S                      ^L
_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                     In file included from  s2/s2shapeutil_build_polygon_boundaries.cc : 18\:

In file included from       ../src/s2/s2shapeutil_build_polygon_boundaries.h| :                                                   ^23
:
In file included from ../src/s2/s2shape.h/usr/local/clang/include/absl/container/internal/common.h::2531:
:In file included from 9../src/s2/s2coder.h:: 23:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/status/status.h
:67:
In file included from    /usr/local/clang/include/absl/status/internal/status_internal.h31: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:I549N:T40E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_IF  _549t | r u es(tiaft_isca tviosifdi eIdn,c r.e.m.e)n tiSfy_nscahtSiesmf(iMeudt
e      x| *        ^ 
absl_nonnull mu,
In file included from       s2/s2shapeutil_conversion.cc| :                                       ^18
:
In file included from ../src/s2/s2shapeutil_conversion.h/usr/local/clang/include/absl/base/nullability.h::28241:
:In file included from 22../src/s2/s2polygon.h:: 34:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/mutable_s2shape_index.h
:30:
  In file included from 241/usr/local/clang/include/absl/container/btree_map.h | :#67d:
e/usr/local/clang/include/absl/container/internal/btree_container.hf:i579n:e3 :a bwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
_nonnu  l579l |   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_X(insert_In file included from os2/s2shapeutil_build_polygon_boundaries.ccr:_18a:
sIn file included from s../src/s2/s2shapeutil_build_polygon_boundaries.hi:g23n:
,In file included from  ../src/s2/s2shape.hi:nsert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s2shape_nesting_query.cc:29:
  In file included from 581../src/s2/s2predicates.h | : 55 :
AIn file included from B/usr/local/clang/include/absl/flags/flag.hS:L42_:
IIn file included from N/usr/local/clang/include/absl/flags/internal/flag.hT:E30R:
N/usr/local/clang/include/absl/base/call_once.hA:L53_:X22(:i nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
rt_   o53r | _ a s s iagbns,l :i:nosnecret__folra_ga*s saibgsnl__hnionntn_uilmlp lf,l a&g&),; 
c      o| n                     ^s
t /usr/local/clang/include/absl/base/nullability.h&:,241
:      22| :  ^ 
note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.h
:509:  52241: |  #note: dexpanded from macro 'ABSL_INTERNAL_X'e
fin  e509  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:In file included from 64s2/s2shape_nesting_query.cc:: 29:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2predicates.h
:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42  :
550In file included from  | /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 96 : 33 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
        96  |      f r i e n d   s t d :b:aasteo_miinct<eurinnatl3:2:_Pte>r*T harbesald_Snyonncnhu*l la bbsals_en_oinnntuelrln awl):;:
C      o| n                                                               ^t
rol/usr/local/clang/include/absl/base/nullability.hW:o241r:d22(:
       | note:                                 ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:In file included from 97s2/s2shapeutil_build_polygon_boundaries.cc::1818::
 In file included from warning: ../src/s2/s2shapeutil_build_polygon_boundaries.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from    ../src/s2/s2shape.h97: | 25 :
 In file included from  ../src/s2/s2coder.h : 23 :
oIn file included from n/usr/local/clang/include/absl/status/status.hc:e67_:
fIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:g29*:
 In file included from a/usr/local/clang/include/absl/strings/cord.hb:s94l:
_In file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l551 :f40l:a gwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension];

      |                  ^  
551 | /usr/local/clang/include/absl/base/nullability.h : 241s:t22a:t inote: cexpanded from macro 'absl_nonnull' 
bo  o241l |  #Ddeecfrienmee natbSsyln_cnhoSnenmu(lMlu t_eNxo*n naublsll
_      n| o                     ^n
null mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:In file included from 64s2/s2shape_nesting_query.cc:: 29:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2predicates.h
:55:
In file included from /usr/local/clang/include/absl/flags/flag.h  :55242 | :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 111 : 40 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       111  |  v o i d   L o w L e vbealsCealIn file included from _liOs2/s2shapeutil_coding.ccnn:tc18ee:
(rIn file included from an../src/s2/s2shapeutil_coding.hba:sl44l:::
::In file included from oP../src/s2/s2coder.hne:cr23eT:
_hIn file included from fr/usr/local/clang/include/absl/status/status.hle:aa67gd:
*SIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.hya:nb29cs:
hl*/usr/local/clang/include/absl/strings/cord.h_ :na1222ob:ns52nl:u_ lnwarning: lotype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] n
fnlualg l,1222   | wCi,an
ll      li| an                                                               ^be
l ev&/usr/local/clang/include/absl/base/nullability.ho&:i 241df: n22C,:o
 r      note: d| expanded from macro 'absl_nonnull':                                       ^
:
I  n241/usr/local/clang/include/absl/base/nullability.hl | :i#241nd:ee22Rf:ei pnnote: :eexpanded from macro 'absl_nonnull': 
Sawb  as241pl | (_#Cndooernfdni:un:leIl n al_biNsnolen_Rnneuopln*ln 
ua      lb| ls                     ^ l
__Nnoonnnnuullll
       r| h                     ^s
) {
      |                                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_build_polygon_boundaries.cc::24118::
22In file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shape.h:25  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
o/usr/local/clang/include/absl/synchronization/mutex.hn:556n:u38l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonIn file included from ns2/s2shapeutil_coding.ccu:l18l:

In file included from       ../src/s2/s2shapeutil_coding.h| :                     ^44
:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18 :
1230In file included from  | ../src/s2/s2shapeutil_build_polygon_boundaries.hi:n23l:
iIn file included from n../src/s2/s2shape.he: 25c:
oIn file included from n../src/s2/s2coder.hs:t23 :
cIn file included from h/usr/local/clang/include/absl/status/status.ha:r67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31 :
C/usr/local/clang/include/absl/synchronization/mutex.ho:r558d::35::I nwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
neR  e558p | : : dbaotoal( )L occoknSslto w{W
i      t| h                   ^D
ea/usr/local/clang/include/absl/base/nullability.hd:l257i:n23e:( Mnote: uexpanded from macro 'absl_nullable'H
ow   257a | b#sdle_fnionIn file included from nes2/s2shape_nesting_query.ccn :ua29lb:
lsIn file included from  l../src/s2/s2predicates.hh_:on55wu:
,lIn file included from In file included from 
l/usr/local/clang/include/absl/flags/flag.hs2/s2shapeutil_contains_brute_force.cc      a::| b4218                                  ^l:
:

eIn file included from In file included from  /usr/local/clang/include/absl/flags/internal/flag.h/usr/local/clang/include/absl/base/nullability.h../src/s2/s2shapeutil_contains_brute_force.h_:::N3024121u:
::
/usr/local/clang/include/absl/base/call_once.hl22In file included from :l:../src/s2/s2point.h153a ::bnote: 25expanded from macro 'absl_nonnull'41l:

:eIn file included from    
../src/s2/util/coding/coder.h241warning:       : | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 36#
                      ^:
d
eIn file included from   f../src/s2/base/casts.h153i: | n34 e :
  In file included from a /usr/local/clang/include/absl/log/log.hbC:sa209ll:
_lIn file included from nO/usr/local/clang/include/absl/log/internal/log_impl.hon:nc22enI:
umIn file included from lp/usr/local/clang/include/absl/log/internal/log_message.hll: (47_s:
NtIn file included from od/usr/local/clang/include/absl/log/internal/structured_proto.hn::n:27ua:
tloIn file included from ml/usr/local/clang/include/absl/log/internal/proto.hi
c:      <34| u:
                     ^i
/usr/local/clang/include/absl/types/span.hn:t2123:222_:t In file included from >warning: *s2/s2shapeutil_coding.ccIn file included from type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] :s2/s2shapeutil_build_polygon_boundaries.cc
a18:b:
s18In file included from l:
_  ../src/s2/s2shapeutil_coding.hIn file included from n212:../src/s2/s2shapeutil_build_polygon_boundaries.ho | 44:n n:
u23l In file included from u:
l../src/s2/s2coder.h sIn file included from :ci../src/s2/s2shape.hn23o:ng:
25t In file included from p:
r/usr/local/clang/include/absl/status/status.hoIn file included from ion:t../src/s2/s2coder.hl67,e:r:

23 In file included from =       :
/usr/local/clang/include/absl/status/internal/status_internal.h| TIn file included from *:                                        ^/usr/local/clang/include/absl/status/status.h 29a
::
b67s/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h:
l::In file included from _2411234/usr/local/clang/include/absl/status/internal/status_internal.hn:u::22l2029:l:a:
b  In file included from inote: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull'warning: l:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i94t
  :
y241In file included from _ |  #/usr/local/clang/include/absl/strings/internal/cordz_info.hdue1234:nf | i31nkin:
oen /usr/local/clang/include/absl/synchronization/mutex.hwlna:i;b
s559n      l:_e|  46n                     ^c:o
no nnswarning: t/usr/local/clang/include/absl/base/nullability.hutype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] :l
lc 289_hN:  ao34n559r:n | u*l   lnote: 
 aexpanded from macro 'absl_nullability_unknown'b       
s|  l                       ^ _ 289 
n |  o #n n due lf il n  eC  o ar bd s: l: _In n ul il nl e aR ebcpio:lni:satts _yC_cohunandrkisnt(oi)ow nn c*_o Nanubslstll_ _{nu
nus      lp| le                   ^ac
bilf/usr/local/clang/include/absl/base/nullability.hie:e 241dc:o
22n      :d|  ,                                 ^note: 

expanded from macro 'absl_nonnull'      
|                                              ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bsIn file included from   ls2/s2shapeutil_contains_brute_force.cc257_: | n18#o:
dneIn file included from nf../src/s2/s2shapeutil_contains_brute_force.hui:lnl21e  :
_aIn file included from Nbo../src/s2/s2point.hsnl:n_u25nl:
ulIn file included from l
../src/s2/util/coding/coder.hl      a:| b                     ^l36
e:
 In file included from _../src/s2/base/casts.hN:u34l:
lIn file included from a/usr/local/clang/include/absl/log/log.hb:l209e:

In file included from       /usr/local/clang/include/absl/log/internal/log_impl.h| :                      ^22
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 | In file included from s2/s2shapeutil_build_polygon_boundaries.cc: 18:
IIn file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
NIn file included from T../src/s2/s2shape.hE:R25N:
AIn file included from L../src/s2/s2coder.h_:I23F:
_In file included from t/usr/local/clang/include/absl/status/status.hr:u67e:
(In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hf:_29s:
aIn file included from t/usr/local/clang/include/absl/strings/cord.hi:s94f:
iIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hd:,31 :
./usr/local/clang/include/absl/synchronization/mutex.h.:.562): 23i:f _warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tisfi  e562d | 
        | v        ^o
id LockSlow(MuHow absl_nonIn file included from ns2/s2shapeutil_conversion.ccu:l18l:
 In file included from h../src/s2/s2shapeutil_conversion.ho:w28,:
 In file included from c../src/s2/s2polygon.ho:n34s:
tIn file included from  ../src/s2/mutable_s2shape_index.hC:o30n:
dIn file included from i/usr/local/clang/include/absl/container/btree_map.ht:i67o:
n/usr/local/clang/include/absl/container/internal/btree_container.h*: 581a:b3s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
llable   581c | o n dA,B
S      L| _                      ^I
NTE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:X (note: iexpanded from macro 'absl_nonnull'n
se  r241t | _#odre_faisnsei ganb,s li_nnsoenrntu_lolr __aNsosningunl_lh
i      n| t                     ^_
impl, &&, constIn file included from  s2/s2shapeutil_build_polygon_boundaries.cc&:,18
:
      In file included from | ../src/s2/s2shapeutil_build_polygon_boundaries.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
23:
In file included from ../src/s2/s2shape.h  :58225 | :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :t94r:
uIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31f:
a/usr/local/clang/include/absl/synchronization/mutex.hl:s562e:,58 :c owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
t_i  t562e | r a tvoori(dh iLnotc)k SAlBoSwL(_MIuNHTEoRwN AaLb_sClO_MnMoAn)n;u
l      l|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~h
ow,/usr/local/clang/include/absl/container/internal/btree_container.h :c509o:n47s:t  note: Cexpanded from macro 'ABSL_INTERNAL_X'o
ndit  i509o | n *   a b s l _ n u lAlBaSbLl_eI NcToEnRdN,A
L      _| A                                                         ^T
TRI/usr/local/clang/include/absl/base/nullability.hB:U257T:E23_:C Anote: Pexpanded from macro 'absl_nullable'T
UR  E257D | _#BdYe(ftihnies )a)b,s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^\

      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |   In file included from  s2/s2shapeutil_build_polygon_boundaries.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h : 23A:
BIn file included from S../src/s2/s2shape.hL:_25I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:A67T:
TIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hI:B29U:
TIn file included from E/usr/local/clang/include/absl/strings/cord.h_:C94A:
PIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hU:R31E:
D/usr/local/clang/include/absl/synchronization/mutex.h_:B565Y:(36t:h iwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
))     565  |      v o i d   U n l o c k S l o w ( S y\n
c      h| W                                                   ^a
it/usr/local/clang/include/absl/container/internal/common.hP:a32r:a9m:s *note:  macro 'ABSL_INTERNAL_IF_false' defined herea
bsl   _32n | u#ldleafbIn file included from ilnes2/s2shapeutil_coding.cce : w18Aa:
iBtIn file included from Sp../src/s2/s2shapeutil_coding.hL):_ 44IA:
NBIn file included from TS../src/s2/s2coder.hEL:R_23NA:
ATIn file included from LT/usr/local/clang/include/absl/status/status.h_R:II67FB:
_UIn file included from fT/usr/local/clang/include/absl/status/internal/status_internal.haE:l_29sC:
eO/usr/local/clang/include/absl/strings/cord.hL:(D1239i;:f
38_      :s|  a                                   ^warning: t
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
s/usr/local/clang/include/absl/base/nullability.hf:i257 e:1239d23 | ,:i  n.note: l.expanded from macro 'absl_nullable'i.
n)e    _257a_ | bV#sAdl_e:Af:RicGnoSer_ d_a_
bi      sn| lt        ^_e
nrunlalla:b:lCeo r_dNRuelpl*a balbes
l      _| n                      ^o
nnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2shapeutil_build_polygon_boundaries.ccs:l18_:
nIn file included from o../src/s2/s2shapeutil_build_polygon_boundaries.hn:n23u:
lIn file included from l../src/s2/s2shape.h :_25N:
oIn file included from n../src/s2/s2coder.hn:u23l:
l
      |                      ^
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerIn file included from Ts2/s2shapeutil_coding.cch:r18e:
aIn file included from d../src/s2/s2shapeutil_coding.hS:y44n:
cIn file included from h../src/s2/s2coder.h*: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :s1245):;38
:       | warning:                                                 ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241 :124522 | :i nnote: lexpanded from macro 'absl_nonnull'i
ne   241a | b#sdle:f:icnoer da_bisnlt_enronnanlu:l:lIn file included from C s2/s2shapeutil_conversion.cco_:rN18do:
RnIn file included from en../src/s2/s2shapeutil_conversion.hpu:*l28 l:
a
In file included from b      ../src/s2/s2polygon.hs| :l                     ^34_
:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30a:
bIn file included from l/usr/local/clang/include/absl/container/btree_map.he: 67C:
o/usr/local/clang/include/absl/container/internal/btree_container.hr:d583:::3In file included from I:s2/s2shapeutil_build_polygon_boundaries.ccn :lwarning: 18ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
n
In file included from e../src/s2/s2shapeutil_build_polygon_boundaries.hR:e23  p:
583:In file included from  | :../src/s2/s2shape.h t: r25Ae:
BeIn file included from S(../src/s2/s2coder.hL):_
23I      :
N| In file included from T                                     ^/usr/local/clang/include/absl/status/status.hE
:R67N:
/usr/local/clang/include/absl/base/nullability.hAIn file included from :L/usr/local/clang/include/absl/status/internal/status_internal.h257_::X2923(:
:iIn file included from  n/usr/local/clang/include/absl/strings/cord.hnote: s:expanded from macro 'absl_nullable'e94
r:
tIn file included from   _/usr/local/clang/include/absl/strings/internal/cordz_info.h257o: | r31#_:
da/usr/local/clang/include/absl/synchronization/mutex.hes:fs578ii:ng45en: , a warning: bitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sn
ls_In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #d eufsiinneg  acbosnls_tn_opnoniunltle r_ N=o ncnounlslt
       T| *                     ^ 
absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_In file included from us2/s2shape_nesting_query.ccn:k29n:
oIn file included from w../src/s2/s2predicates.hn: 55_:
NIn file included from u/usr/local/clang/include/absl/flags/flag.hl:l42_:
uIn file included from n/usr/local/clang/include/absl/flags/internal/flag.hs:p30e:
c/usr/local/clang/include/absl/base/call_once.hi:f200i:e40d:
       | warning:                                  ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
429 warnings generated.
e  rt_578o | r_as s ivgoni_dh iBnlto_cikm(pbla,s e&_&i,n tceornnsatl :&:,P
e      r| T  ^h
rea/usr/local/clang/include/absl/container/internal/btree_container.hd:S509y:n52c:h *note:  expanded from macro 'ABSL_INTERNAL_X'a
bsl_  n509o | n n u l l   s ) ; 
       A| B                                            ^S
L_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Aexpanded from macro 'absl_nonnull'T
TRI  B241U | T#Ed_eCfAiPnTeU RaEbDs_lB_Yn(otnhniusl)l) ,_ N o n n u l l 
        |                       ^ 
            \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
In file included from    s2/s2shapeutil_build_polygon_boundaries.cc31: | 18#:
dIn file included from e../src/s2/s2shapeutil_build_polygon_boundaries.hf:i23n:
eIn file included from  ../src/s2/s2shape.hA:B25In file included from S:
In file included from L../src/s2/s2coder.hs2/s2shapeutil_get_reference_point.cc_::I2318N:
:
TIn file included from In file included from ../src/s2/s2shapeutil_get_reference_point.hE/usr/local/clang/include/absl/status/status.h:R:21N67:
A:
In file included from LIn file included from ../src/s2/s2shape.h_/usr/local/clang/include/absl/status/internal/status_internal.h:I:25F29:
_:
In file included from tIn file included from ../src/s2/s2coder.hr/usr/local/clang/include/absl/strings/cord.h:u:23e94:
(:
In file included from iIn file included from /usr/local/clang/include/absl/status/status.hf/usr/local/clang/include/absl/strings/internal/cordz_info.h:_:67s31:
a:
t/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/synchronization/mutex.hi::s119580f::i1434e:d: , warning:  warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
.
.)   i  119f580 | _ |  s  a Stbtiaasstfeui_seiRdne
tp      e*| r         ^na
abls:l:_PneornTnhurlela dCSlyonncehIn file included from (*s2/s2shapeutil_conversion.cc
 :      a18| b:
             ^sIn file included from 
l../src/s2/s2shapeutil_conversion.h_:n28/usr/local/clang/include/absl/base/nullability.hu:
:l241l:a22b:l enote:  expanded from macro 'absl_nonnull'W
ak  e241u | p#(d
e      f| i                                 ^n
e /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | _#Ndoenfniunlel 
a      b| s                     ^l
_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from In file included from ../src/s2/s2coder.hs2/s2shapeutil_get_reference_point.cc::2318:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h../src/s2/s2shapeutil_get_reference_point.h::6721:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/s2shape.h::2529:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/strings/cord.h::2394:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::6731:
:
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/synchronization/mutex.h::125581::1438::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    125581 |  |     S t a t ubsaRseep_*i natbesrln_anlo:n:nPuelrlT hCrleoandeSAynndcUhn*r eafb(s
l      _| n             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22w:) ;note: 
expanded from macro 'absl_nonnull'      
|                                      ^  
241 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  _aNbosnln_unloln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2shapeutil_build_polygon_boundaries.ccIn file included from :/usr/local/clang/include/absl/status/status.h18::
67In file included from :
../src/s2/s2shapeutil_build_polygon_boundaries.h:/usr/local/clang/include/absl/status/internal/status_internal.h23::
128In file included from :../src/s2/s2shape.h14::25 :
In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h  :12867 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hS:t29a:
tIn file included from u/usr/local/clang/include/absl/strings/cord.hs:R94e:
pIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_585n:o20n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 Cl  o585n | e A nvdoUindr eTfr(a)n sc(oMnusHto;w
       a| b             ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'h
ow  )241; |  # d/e/f iunsee da bfsolr_ nCoonnnduVlalr -_>NMountneuxl lt
r      a| n                     ^s
fer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18In file included from :
../src/s2/s2polygon.hIn file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h34::
23In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2shape.h30::
25In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :../src/s2/s2coder.h67::
23:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/status/status.h583::673:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:warning: 29'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
  583/usr/local/clang/include/absl/synchronization/mutex.h | : 624 :A68B:S Lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]I
NTERN  A624L | _ X (eixnpsleircti_to rM_uatsesxiLgonc,k (iMnusteerxt&_ omru_ aAsBsSiLg_nI_NhTiEnRtN_AiLm_pAlT,T R&I&B,U TcEo_nCsAtP T&U,R
E      D| _  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~B
Y(t  h584i | s ) ) 
        |                                                                     ^~~~ 
           true, true, const_iterator(hint) A/usr/local/clang/include/absl/synchronization/mutex.hB:S635L:_29I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL_  C635O | M M Ae)x;p
l      i| c                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
t M/usr/local/clang/include/absl/container/internal/btree_container.hu:t509e:x47L:o cnote: kexpanded from macro 'ABSL_INTERNAL_X'(
Mut  e509x | *   a b s l _ n o n nAuBlSlL _mIuN)T EARBNSALL__EAXTCTLRUISBIUVTEE__LCOACPKT_UFRUENDC_TBIYO(Nt(hmius))
)      ,|                              ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                                              ^~~~s
l_nonnull _/usr/local/clang/include/absl/container/internal/btree_container.hN:o583n:n3u:l lwarning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|                      ^/usr/local/clang/include/absl/container/internal/btree_container.h
:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIn file included from Is2/s2shapeutil_build_polygon_boundaries.ccB:U18T:
EIn file included from _../src/s2/s2shapeutil_build_polygon_boundaries.hC:A23P:
TIn file included from U../src/s2/s2shape.hR:E25D:
_In file included from B../src/s2/s2coder.hY:(23t:
hIn file included from i/usr/local/clang/include/absl/status/status.hs:)67):
)In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 641 : 68 :   warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
\
      |                                                    ^  
641 |  /usr/local/clang/include/absl/container/internal/common.h :e31x:p9l:i cnote: imacro 'ABSL_INTERNAL_IF_true' defined heret
 Mu   t31e | x#Ldoecfki(nMeu tAeBxS&L _mIuN TAEBRSNLA_LI_NITFE_RtNrAuLe_(AiTfT_RsIaBtUiTsEf_iCeAdP,T U.R.E.D)_ BiYf(_tshaitsi)s,f
i      e| d                                                                   ^~~~

      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/synchronization/mutex.h::67649:
:29/usr/local/clang/include/absl/container/internal/btree_container.h:: 583:warning: 3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]  
649 |   e  x583p | l i cAiBtS LM_uItNeTxELRoNcAkL(_MXu(tienxs*e ratb_solr__naosnsniuglnl,  miun,s ecrotn_sotr _Caosnsdiigtni_ohni&n tc_oinmdp)l
,       | &                            ^&
, /usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  &note: ,expanded from macro 'absl_nonnull'

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  241 |   #584d | e f i n e   a b s l _ n o n n u l l  t_rNuoen,n utlrlu
e      ,|                       ^c
onst_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSIn file included from Ls2/s2shapeutil_coding.cc_:I18N:
TIn file included from E../src/s2/s2shapeutil_coding.hR:N44A:
LIn file included from _../src/s2/s2coder.hA:T23T:
RIn file included from I/usr/local/clang/include/absl/status/status.hB:U67T:
EIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hC:A29P:
TU/usr/local/clang/include/absl/strings/cord.hR:E1258D:_36B:Y (warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
is)) 
1258       | | i                                                                         ^~~~n
line cord_internal::CordRepFlat* abs/usr/local/clang/include/absl/synchronization/mutex.hl:_678n:o35n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                                    ^
  678 |  /usr/local/clang/include/absl/base/nullability.h :e241x:p22l:i cnote: iexpanded from macro 'absl_nonnull't
 R  e241a | /usr/local/clang/include/absl/container/internal/btree_container.hd#e:rd586eM:fu3it:ne xeL warning: oapassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]bc
ks(lM_  un586toe | nx n* uA laBlbS sL_l_N_IonNnoTnEnRnuulNlllA
L _      Xm| u(                     ^i)
n sAeBrStL__oSrH_AaRsEsDi_gLnO,C Ki_nFsUeNrCtT_IoOrN_(amsus)i
g      n| _                                  ^h
int/usr/local/clang/include/absl/base/nullability.h_:i241m:p22l:,  note: &expanded from macro 'absl_nonnull'&
,   &241& | ,# dfeaflisnee, 
a      b| s  ^l
_n/usr/local/clang/include/absl/container/internal/btree_container.ho:n509n:u52l:l  note: _expanded from macro 'ABSL_INTERNAL_X'N
onn  u509l | l 
        |                       ^ 
     ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BIn file included from Ys2/s2shapeutil_build_polygon_boundaries.cc(:t18h:
iIn file included from s../src/s2/s2shapeutil_build_polygon_boundaries.h):)23,:
 In file included from  ../src/s2/s2shape.h : 25 :
 In file included from  ../src/s2/s2coder.h : 23 :
In file included from  In file included from  s2/s2shapeutil_coding.cc/usr/local/clang/include/absl/status/status.h : : 18 67:
 :
In file included from  In file included from ../src/s2/s2shapeutil_coding.h /usr/local/clang/include/absl/status/internal/status_internal.h :: 44 29:
 :
In file included from  In file included from ../src/s2/s2coder.h\/usr/local/clang/include/absl/strings/cord.h:
:23      94:
| :
In file included from                                                    ^In file included from /usr/local/clang/include/absl/status/status.h
/usr/local/clang/include/absl/strings/internal/cordz_info.h::6731:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/util/math/exactfloat/exactfloat.cc -o s2/util/math/exactfloat/exactfloat.o
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from In file included from /usr/local/clang/include/absl/log/log.hs2/s2shapeutil_build_polygon_boundaries.cc::20918:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/s2shapeutil_build_polygon_boundaries.h::2223:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2shape.h::4725:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h../src/s2/s2coder.h::2723:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/proto.h/usr/local/clang/include/absl/status/status.h::3467:
:
In file included from /usr/local/clang/include/absl/types/span.h/usr/local/clang/include/absl/status/internal/status_internal.h::73329::
31In file included from :/usr/local/clang/include/absl/strings/cord.h :94warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:  722733: | 74c:o nwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
expr   722S | p a ne<xTp>l iMcaikte SWpraint(eTr*M uatbesxlL_oncukl(lMaubtleex &p tmru  AABBSSLL__AITNTTREIRBNUATLE__ALTITFREITBIUMTEE__BCOAUPNTDU,R
E      D| _                              ^B
Y(t/usr/local/clang/include/absl/base/nullability.hh:i257s:)23,:
       | note:                                                                          ^~~~expanded from macro 'absl_nullable'

  257 | #define absl_nullable _Nullab/usr/local/clang/include/absl/synchronization/mutex.hl:e731
:      35| :                      ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnulIn file included from ls2/s2shapeutil_contains_brute_force.cc :m18u:
,In file included from  ../src/s2/s2shapeutil_contains_brute_force.hc:o21n:
sIn file included from t../src/s2/s2point.h :C25o:
nIn file included from d../src/s2/util/coding/coder.hi:t36i:
oIn file included from n../src/s2/base/casts.h&: 34c:
oIn file included from n/usr/local/clang/include/absl/log/log.hd:)209
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_impl.h                                  ^:
22:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::24147::
22In file included from :/usr/local/clang/include/absl/log/internal/structured_proto.h :27note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/proto.h:34  :
241 | /usr/local/clang/include/absl/types/span.h#:d739e:f21i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_  n739o | nSnpualnl< T_>N oMnankuelSlp
a      n| (                     ^T
* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2shapeutil_build_polygon_boundaries.cc :a18b:
sIn file included from l../src/s2/s2shapeutil_build_polygon_boundaries.h_:n23u:
lIn file included from l../src/s2/s2shape.ha:b25l:
eIn file included from  ../src/s2/s2coder.h_:N23u:
lIn file included from l/usr/local/clang/include/absl/status/status.ha:b67l:
eIn file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                      ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull obje/usr/local/clang/include/absl/container/internal/common.hct,:
32      :| 9         ^:
 /usr/local/clang/include/absl/base/nullability.hnote: :241macro 'ABSL_INTERNAL_IF_false' defined here:
22: note: expanded from macro 'absl_nonnull'
   32   | 241# | d#:
defIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
ab/usr/local/clang/include/absl/strings/cord.hs:l1268_:n51o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l _Non n1268u | liln
l      i| n                     ^e
 void Cord::InlineRIn file included from es2/s2shapeutil_build_polygon_boundaries.ccp::18::
EIn file included from m../src/s2/s2shapeutil_build_polygon_boundaries.hp:l23a:
cIn file included from e../src/s2/s2shape.hT:r25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<Te>e:(:CtoyrpdeR:e:p**  aabbssll__nnoonnnnuullll  mreetph,o
d      )| (                                                  ^)In file included from 
)s2/s2shapeutil_contains_brute_force.cc;:
18      /usr/local/clang/include/absl/base/nullability.h:
| :In file included from 241                                            ^../src/s2/s2shapeutil_contains_brute_force.h:
:2221:/usr/local/clang/include/absl/base/nullability.h:
 :In file included from 241note: ../src/s2/s2point.h:expanded from macro 'absl_nonnull':22
25::
 In file included from   note: ../src/s2/util/coding/coder.h241expanded from macro 'absl_nonnull': | 
36#:
  dIn file included from 241e../src/s2/base/casts.h | f:#i34dn:
eeIn file included from f i/usr/local/clang/include/absl/log/log.hna:eb209 s:
alIn file included from b_/usr/local/clang/include/absl/log/internal/log_impl.hsn:lo22_n:
nnIn file included from ou/usr/local/clang/include/absl/log/internal/log_message.hnl:nl47u :
l_In file included from lN/usr/local/clang/include/absl/log/internal/structured_proto.h o:_n27Nn:
ouIn file included from nl/usr/local/clang/include/absl/log/internal/proto.hnl:u
34l      :
l| /usr/local/clang/include/absl/types/span.h
                     ^:      
794| :                     ^8
: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nulIn file included from ls2/s2shapeutil_build_polygon_boundaries.cca:b18l:
eIn file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.hp:t23r:
 In file included from A../src/s2/s2shape.hB:S25L:
_In file included from A../src/s2/s2coder.hT:T23R:
IIn file included from B/usr/local/clang/include/absl/status/status.hU:T67E:
_In file included from L/usr/local/clang/include/absl/status/internal/status_internal.hI:F29E:
TIn file included from I/usr/local/clang/include/absl/strings/cord.hM:E94_:
BIn file included from O/usr/local/clang/include/absl/strings/internal/cordz_info.hU:N31D:
,/usr/local/clang/include/absl/synchronization/mutex.h :s850i:z16e:_ twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
ize  )850  | n In file included from o s2/s2shapeutil_coding.cce :x 18c :
e In file included from pc../src/s2/s2shapeutil_coding.hto: n44{s:

tIn file included from        ../src/s2/s2coder.h| T:       ^*23
 :
aIn file included from b/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.hs::l25767_::
n23In file included from o:/usr/local/clang/include/absl/status/internal/status_internal.hn :nnote: 29uexpanded from macro 'absl_nullable':
l
/usr/local/clang/include/absl/strings/cord.hl:   1275o257:b | 51j#:ed cewarning: tftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],i

n      e|                 ^ a
1275b | /usr/local/clang/include/absl/base/nullability.hsi:ln241_l:ni22un:le l note: avexpanded from macro 'absl_nonnull'bo
lie  d 241 _ | CN#oudrledlf:ai:bnIlene l
ai      bn| se                      ^lR
_enpo:n:nEumlpll a_cNeoTnrneuel(lC
o      r| d                     ^R
ep* absl_nonnull In file included from rs2/s2shapeutil_build_polygon_boundaries.cce:p18,:

In file included from In file included from       s2/s2shapeutil_contains_brute_force.cc../src/s2/s2shapeutil_build_polygon_boundaries.h| ::                                                  ^1823
:
:
In file included from In file included from ../src/s2/s2shapeutil_contains_brute_force.h/usr/local/clang/include/absl/base/nullability.h../src/s2/s2shape.h:::2124125:
::
In file included from 22In file included from ../src/s2/s2point.h:../src/s2/s2coder.h: :2523note: :
:
expanded from macro 'absl_nonnull'In file included from In file included from 
../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/status.h::  3667241:
:
 | In file included from In file included from #../src/s2/base/casts.h/usr/local/clang/include/absl/status/internal/status_internal.hd::e3429f:
:
iIn file included from In file included from n/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/strings/cord.he:: 20994a:
:
bIn file included from In file included from s/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/strings/internal/cordz_info.hl::_2231n:
:
oIn file included from /usr/local/clang/include/absl/synchronization/mutex.hn/usr/local/clang/include/absl/log/internal/log_message.h:n:851u47:l:
45lIn file included from : /usr/local/clang/include/absl/log/internal/structured_proto.h _:warning: N27type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o:

nIn file included from n/usr/local/clang/include/absl/log/internal/proto.hu:  l34851l:
 | 
/usr/local/clang/include/absl/types/span.h       : | 799                      ^: 
32 :  bwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
l (  a799b | sSlp:a:nt<ycpoen_sitd eTn>t iMtayk<eTC>o:n:sttySppea:n:(*T *a basbls_ln_onnunlullalb lmee In file included from tbs2/s2shapeutil_coding.cche:og18di:
)In file included from n(../src/s2/s2shapeutil_coding.h
):      
44|       :
                               ^| In file included from 
                                            ^../src/s2/s2coder.h
:/usr/local/clang/include/absl/base/nullability.h23/usr/local/clang/include/absl/base/nullability.h::
:257In file included from 241:/usr/local/clang/include/absl/status/status.h:23:22:67: :
 note: In file included from note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/status/internal/status_internal.hexpanded from macro 'absl_nonnull'
:
29  :
257  /usr/local/clang/include/absl/strings/cord.h | 241:# | 1282d#d:e47ef:fi inwarning: netype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e 
 aabbs sl1282l_ | _ninonunllnilunalebl l ve_o Ni_odNn unCluollrald
b:      l:| eI                     ^
n
      l| i                      ^n
eRep::SetTreeIn file included from (s2/s2shapeutil_contains_brute_force.ccC:o18r:
dIn file included from In file included from R../src/s2/s2shapeutil_contains_brute_force.hs2/s2shapeutil_build_polygon_boundaries.cce::p2118*:
:
 In file included from In file included from a../src/s2/s2point.h../src/s2/s2shapeutil_build_polygon_boundaries.hb::s2523l:
:
_In file included from In file included from n../src/s2/util/coding/coder.h../src/s2/s2shape.ho::n3625n:
:
uIn file included from In file included from l../src/s2/base/casts.h../src/s2/s2coder.hl:: 3423r:
:
eIn file included from In file included from p/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/status/status.h,::
20967      :
:
| In file included from In file included from                                               ^/usr/local/clang/include/absl/log/internal/log_impl.h/usr/local/clang/include/absl/status/internal/status_internal.h
::2229:
/usr/local/clang/include/absl/base/nullability.h:
In file included from :In file included from /usr/local/clang/include/absl/log/internal/log_message.h241/usr/local/clang/include/absl/strings/cord.h:::472294:
::
In file included from  In file included from /usr/local/clang/include/absl/log/internal/structured_proto.hnote: /usr/local/clang/include/absl/strings/internal/cordz_info.h:expanded from macro 'absl_nonnull':27
31:
:
In file included from   /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/proto.h241:: | 85534#::
d34/usr/local/clang/include/absl/types/span.he::f 801i:warning: n32type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e:
  awarning: b  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s855
l | _ n   oe801nx | np ul li lc  i _t N  oC no nn ud li lt 
i       o | n                      ^( 
c o n s t   b o o l *  Ta*b salb_snlo_nnnuulllla bcloen de)n;d
)       | n                                 ^o
ex/usr/local/clang/include/absl/base/nullability.hc:e241p:t22 :{ 
note:       expanded from macro 'absl_nonnull'| 
                               ^
  241 | /usr/local/clang/include/absl/base/nullability.h#:d257e:f23i:n enote:  expanded from macro 'absl_nullable'a
bIn file included from s  s2/s2shapeutil_coding.ccl257:_ | 18n#:
odIn file included from ne../src/s2/s2shapeutil_coding.hnf:ui44lnl:
e In file included from  _../src/s2/s2coder.haN:bo23sn:
lnIn file included from _u/usr/local/clang/include/absl/status/status.hnl:ul67l
:
l      In file included from a| /usr/local/clang/include/absl/status/internal/status_internal.hb                     ^:l
29e:
 /usr/local/clang/include/absl/strings/cord.h_:N1290u:l54l:a bwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e

      |                       ^
 1290 | inline void Cord::InlineRep:In file included from :s2/s2shapeutil_build_polygon_boundaries.ccS:e18t:
TIn file included from r../src/s2/s2shapeutil_build_polygon_boundaries.he:e23O:
rIn file included from E../src/s2/s2shape.hm:p25t:
yIn file included from (../src/s2/s2coder.hC:o23r:
dIn file included from R/usr/local/clang/include/absl/status/status.he:p67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
aIn file included from b/usr/local/clang/include/absl/strings/internal/cordz_info.hl:e31 :
r/usr/local/clang/include/absl/synchronization/mutex.he:p886,:
31      :|                                                       ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257  :88623 | :   note: eexpanded from macro 'absl_nullable'x
pl  i257c | i#td eCfoinndei taibosnl(_cnounlslta bTl*e  a_bNsull_lnaobnlneu
l      l|                        ^o
bj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | iIn file included from ns2/s2shapeutil_build_polygon_boundaries.ccl:i18n:
eIn file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.hv:o23i:
dIn file included from  ../src/s2/s2shape.hC:o25r:
dIn file included from :../src/s2/s2coder.h::I23n:
lIn file included from i/usr/local/clang/include/absl/status/status.hn:e67R:
eIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.h:::29C:
oIn file included from m/usr/local/clang/include/absl/strings/cord.hm:i94t:
TIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.he:e31(:
c/usr/local/clang/include/absl/synchronization/mutex.ho:n896s:t31 :C owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
Rep  *896  | a b selx_pnluilcliatb lCeo nodlidt_iroenp(,c
o      n| s                                                       ^t
 T/usr/local/clang/include/absl/base/nullability.h*: e257a:b23sf:li n_ennote: o expanded from macro 'absl_nullable'nAn
uBlS  lL 257_o | bIj#)N
dTe      EfRi| Nn                              ^AeL 
_aIb/usr/local/clang/include/absl/base/nullability.hsF:l__fna241ul:s22e:( inote: fexpanded from macro 'absl_nonnull'_
sa  t241i | s#fdieefdi,n e. .a.b)s l___nVoAn_nAuRlGlS ___N
o      n| n        ^u
ll
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18  :
586In file included from  | ../src/s2/s2shapeutil_build_polygon_boundaries.h : 23A:
BIn file included from S../src/s2/s2shape.hL:_25I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:X67(:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hs:e29r:
tIn file included from _/usr/local/clang/include/absl/strings/cord.ho:r94_:
aIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hs:i31g:
n/usr/local/clang/include/absl/synchronization/mutex.h,: 922i:n48s:e rwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
or_a  s922s | i g ns_thaitnitc_ ibmopoll,  G&u&a,r a&n&t,e efdaElqsue,a
l      (| c  ^o
nst/usr/local/clang/include/absl/container/internal/btree_container.h :C511o:n52d:i tnote: iexpanded from macro 'ABSL_INTERNAL_X'o
n* a  b511s | l _ n u l l a b l e  AaB,S
L      _| I                                               ^N
TE/usr/local/clang/include/absl/base/nullability.hR:N257A:L23_:A Tnote: Texpanded from macro 'absl_nullable'R
IB  U257T | E#_dCeAfPiTnUeR EaDb_sBlY_(ntuhlilsa)b)l)e   _ N u l l a b l e 
        |                        ^ 
         \
      |                                                    ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:/usr/local/clang/include/absl/container/internal/common.h18::
32In file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h9::23 :
In file included from note: ../src/s2/s2shape.hmacro 'ABSL_INTERNAL_IF_false' defined here:
25:
In file included from ../src/s2/s2coder.h   :3223 | :
#In file included from d/usr/local/clang/include/absl/status/status.he:f67i:
nIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h :A29B:
SIn file included from L/usr/local/clang/include/absl/strings/cord.h_:I94N:
TIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hR:N31A:
L/usr/local/clang/include/absl/synchronization/mutex.h_:I923F:_48f:a lwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
(if  _923s | a t i s f i e d ,   . . . )   _ _ V A _ A R G S _ _ 
        |          ^ 
const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2shapeutil_conversion.cc257::1823:
:In file included from  ../src/s2/s2shapeutil_conversion.h:note: 28expanded from macro 'absl_nullable':

In file included from ../src/s2/s2polygon.h:  34257:
 | In file included from #../src/s2/mutable_s2shape_index.hd:e30f:
iIn file included from n/usr/local/clang/include/absl/container/btree_map.he: 67a:
b/usr/local/clang/include/absl/container/internal/btree_container.hs:l588_:n3u:l lwarning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
le _  N588u | l l aAbBlSeL
_      I| N                      ^T
ERNAL_In file included from Xs2/s2shapeutil_build_polygon_boundaries.cc(:i18n:
sIn file included from e../src/s2/s2shapeutil_build_polygon_boundaries.hr:t23_:
oIn file included from r../src/s2/s2shape.h_:a25s:
sIn file included from i../src/s2/s2coder.hg:n23,:
 In file included from i/usr/local/clang/include/absl/status/status.hn:s67e:
rIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h_:o29r:
_In file included from a/usr/local/clang/include/absl/strings/cord.hs:s94i:
gIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.h_:h31i:
n/usr/local/clang/include/absl/synchronization/mutex.ht:_948i:m48p:l ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
&,   &948& | ,   fbaolosle ,(
*      a| b  ^s
l_/usr/local/clang/include/absl/container/internal/btree_container.hn:u509l:l52a:b lnote: eexpanded from macro 'ABSL_INTERNAL_X' 
eva  l509_ | ) ( c o n s t   C o nAdBiStLi_oInN*T EaRbNsAlL__nAoTnTnRuIlBlU)T E=_ CnAuPlTlUpRtErD;_
B      Y| (                                               ^t
hi/usr/local/clang/include/absl/base/nullability.hs:)241):,22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o\n
n      u| l                                                   ^l
 _/usr/local/clang/include/absl/container/internal/common.hN:o32n:n9u:l lnote: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                      ^
   32 | #define ABSL_INTIn file included from Es2/s2shapeutil_build_polygon_boundaries.ccR:N18A:
LIn file included from _../src/s2/s2shapeutil_build_polygon_boundaries.hI:F23_:
fIn file included from a../src/s2/s2shape.hl:s25e:
(In file included from i../src/s2/s2coder.hf:_23s:
aIn file included from t/usr/local/clang/include/absl/status/status.hi:s67f:
iIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hd:,29 :
.In file included from ./usr/local/clang/include/absl/strings/cord.h.:)94 :
_In file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hV:A31_:
A/usr/local/clang/include/absl/synchronization/mutex.hR:G951S:_9_:
       | warning:         ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  951 |   voiIn file included from ds2/s2shapeutil_conversion.cc*: 18a:
bIn file included from s../src/s2/s2shapeutil_conversion.hl:_28n:
uIn file included from l../src/s2/s2polygon.hl:a34b:
lIn file included from e../src/s2/mutable_s2shape_index.h :a30r:
gIn file included from _/usr/local/clang/include/absl/container/btree_map.h :=67 :
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l588l:p3t:r ;warning: 
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]      
|         ^
  /usr/local/clang/include/absl/base/nullability.h588: | 257 : 23A:B Snote: Lexpanded from macro 'absl_nullable'_
IN  T257E | R#NdAeLf_iXn(ei nasbesrlt__nourl_laasbslieg n_,N uilnlsaebrlte_
o      r| _                      ^a
ssign_hint_In file included from is2/s2shapeutil_build_polygon_boundaries.ccm:p18l:
,In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h&:&23,:
 In file included from &../src/s2/s2shape.h&:,25 :
fIn file included from a../src/s2/s2coder.hl:s23e:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67  ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/btree_container.h29::
511In file included from :/usr/local/clang/include/absl/strings/cord.h52::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'ABSL_INTERNAL_X':
31:
/usr/local/clang/include/absl/synchronization/mutex.h:  954511: | 52 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      954  | A B SsLt_aItNiTcE RbNoAoLl_ ACTaTlRlIVBoUiTdEP_tCrAFPuTnUcRtEiDo_nB(Yc(otnhsits )C)o)n d i t i o n *   a b s l _ n o n n u l l   c ) ;\

            | |                                                    ^                                                   ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/common.h::24131::229::  note: note: expanded from macro 'absl_nonnull'macro 'ABSL_INTERNAL_IF_true' defined here

  241    | 31# | d#edfeifnien ea bAsBlS_Ln_oInNnTuElRlN A_LN_oInFn_utlrlu
e      (| i                     ^f
_satisfied, ...) if_sIn file included from as2/s2shapeutil_build_polygon_boundaries.cct:i18s:
fIn file included from i../src/s2/s2shapeutil_build_polygon_boundaries.he:d23
:
      In file included from | ../src/s2/s2shape.h        ^:
25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2shapeutil_conversion.cc31::
18:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :../src/s2/s2shapeutil_conversion.h956::2852:
:In file included from  ../src/s2/s2polygon.h:warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:  30956:
 | In file included from  /usr/local/clang/include/absl/container/btree_map.h :s67t:
a/usr/local/clang/include/absl/container/internal/btree_container.ht:i588c: 3b:o owarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
CastAn  d588C | a l lAFBuSnLc_tIiNoTnE(RcNoAnLs_tX (Cionnsdeirtti_oonr*_ aasbssilg_nn,o ninnuslelr tc_)o;r
_      a| s                                                   ^s
ig/usr/local/clang/include/absl/base/nullability.hn:_241h:i22n:t _note: iexpanded from macro 'absl_nonnull'm
pl  ,241  | &#&d,e f&&, faIn file included from ls2/s2shapeutil_get_reference_point.ccs:e18,:

In file included from       ../src/s2/s2shapeutil_get_reference_point.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~21
:
In file included from ../src/s2/s2shape.h:25  :
589In file included from  | ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
  /usr/local/clang/include/absl/status/internal/status_internal.h : 149 : 13 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
rue  ,149  | ccoonnsstt_ icthearra*t oarb(shli_nnto)n nAuBlSlL _MIaNkTeECRhNeAcLk_FCaOiMlMSAt)r;i
n      g| (                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/base/nullability.h511::24147::22 : note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'absl_nonnull'

  241 |   #511d | e f i n e   a b s l _AnBoSnLn_uIlNlT E_RNNoAnLn_uAlTlT
R      I| B                     ^U
TE_CAPTUREIn file included from Ds2/s2shapeutil_get_reference_point.cc_:B18Y:
(In file included from t../src/s2/s2shapeutil_get_reference_point.hh:i21s:
)In file included from )../src/s2/s2shape.h): 25 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 /usr/local/clang/include/absl/status/internal/status_internal.h : 150 : 25 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \  
150       | |                                                ^~~~ 
  const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assigIn file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ilne albasbll_en o_nNnuulllla b_lNeo
n      n| u                      ^l
l
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: In file included from warning: s2/s2shapeutil_build_polygon_boundaries.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23 :
1302In file included from  | ../src/s2/s2shape.h : 25 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 958 : 50 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  Co  r958d | R e ps*t aatbiscl _bnooonln uClals trAenpd,C
a      l| l                                                 ^M
etho/usr/local/clang/include/absl/base/nullability.hd:(241c:o22n:s tnote:  expanded from macro 'absl_nonnull'C
on  d241i | t#idoenf*i naeb salb_snlo_nnnounlnlu lcl) ;_
N      o| n                                                 ^n
ull
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2shapeutil_coding.cc:/usr/local/clang/include/absl/synchronization/mutex.h18::
961In file included from :../src/s2/s2shapeutil_coding.h34::44 :
In file included from warning: ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h  :96167 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hs:t29a:
t/usr/local/clang/include/absl/strings/cord.hi:c1312 :b38o:o lwarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C
allB y1312R | eifn(lcionnes ta bTs*l :a:bcsolr_dn_oinnntuelrln asle:l:fC)o r{d
R      e| p                                 ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:u lnote: lexpanded from macro 'absl_nonnull'a
bl  e241  | C#odredf:i:nIen laibnselR_enpo:n:ncullela r_(N)o n{n
u      l| l                                     ^

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NulIn file included from ls2/s2shapeutil_build_polygon_boundaries.cca:b18l:
eIn file included from 
../src/s2/s2shapeutil_build_polygon_boundaries.h      :| 23                      ^:

In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2shapeutil_coding.ccn:e18 :
aIn file included from b../src/s2/s2shapeutil_coding.hs:l44_:
nIn file included from o../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :_67N:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h
:      1321| :                     ^48
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline voiIn file included from ds2/s2shapeutil_build_polygon_boundaries.cc :C18o:
rIn file included from d../src/s2/s2shapeutil_build_polygon_boundaries.h:::23I:
nIn file included from l../src/s2/s2shape.hi:n25e:
RIn file included from e../src/s2/s2coder.hp::23::
CIn file included from o/usr/local/clang/include/absl/status/status.hp:y67T:
oIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hr:r29a:
yIn file included from (/usr/local/clang/include/absl/strings/cord.hc:h94a:
rIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.h:l979_:n43o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l ds  t979) |   c osntsatt i{c
       b| o                                               ^o
l A/usr/local/clang/include/absl/base/nullability.hl:w241a:y22s:T rnote: uexpanded from macro 'absl_nonnull'e
(c  o241n | s#td eCfoinndei taibosnl*_ naobnsnlu_lnlu l_lNaobnlneu)l l{
       r| e                     ^t
urn true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
n, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:/usr/local/clang/include/absl/container/internal/btree_container.h55::
618:/usr/local/clang/include/absl/flags/flag.h3::110 :29warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  618 |     110A | BvSoLi_dI NSTeEtRFNlAaLg_(Xa(btsrly:_:eFmlpalga<cTe>,*  tarbys_le_mnpolnancuel_li mfplla,g ,c ocnosnts t& ,T &f avl)s e{)
;      
|       |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shape_nesting_query.cc:29:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonIn file included from ns2/s2shapeutil_build_polygon_boundaries.ccu:l18l:
 In file included from S../src/s2/s2shapeutil_build_polygon_boundaries.ht:a23t:
uIn file included from s../src/s2/s2shape.h:::25R:
eIn file included from p../src/s2/s2coder.hT:o23P:
oIn file included from i/usr/local/clang/include/absl/status/status.hn:t67e:
rIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                                         ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::24131::
22:/usr/local/clang/include/absl/synchronization/mutex.h :1088note: :expanded from macro 'absl_nonnull'35
:   warning: 241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
#def i1088n | e   avbosild_ nEonnanbullelD e_bNuognLnougl(lc
o      n| s                     ^t
 char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable In file included from _s2/s2shapeutil_get_reference_point.ccN:u18l:
lIn file included from a../src/s2/s2shapeutil_get_reference_point.hb:l21e:

In file included from       ../src/s2/s2shape.h| :                      ^25
:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     sIn file included from ts2/s2shapeutil_build_polygon_boundaries.cca:t18u:
sIn file included from _../src/s2/s2shapeutil_build_polygon_boundaries.hi:n23t:
eIn file included from r../src/s2/s2shape.hn:a25l:
:In file included from :../src/s2/s2coder.hS:t23a:
tIn file included from u/usr/local/clang/include/absl/status/status.hs:R67e:
pIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hr:e1091p:)26 :{ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                ^

 /usr/local/clang/include/absl/base/nullability.h1091: | 241 : 22b:o onote: lexpanded from macro 'absl_nonnull' 
Wa  i241t | C#odmemfoinn(eM uatbesxl*_ naobnsnlu_lnlo n_nNuolnln umlult
e      x| ,                     ^

      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2shapeutil_build_polygon_boundaries.cc29::
18:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2shapeutil_build_polygon_boundaries.h1505::2341:
:In file included from  ../src/s2/s2shape.h:warning: 25:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h :150567 | :
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hl:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.hv:o94i:
dIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hC:o31r:
d/usr/local/clang/include/absl/synchronization/mutex.h:::1093C:o46p:y Twarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
rra y1093I | m p lv(ocihda rR*e maobvsel(_bnaosnen_uilnlt edrsnta)l :c:oPnesrtT h{r
e      a| d                                        ^S
ynch/usr/local/clang/include/absl/base/nullability.h*: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# dse)f;i
n      e|  a                                             ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:In file included from n22n:u lnote: lexpanded from macro 'absl_nonnull's2/s2shapeutil_get_reference_point.cc 
:_18  N:
241oIn file included from  | n../src/s2/s2shapeutil_get_reference_point.h#n:du21elf:
liIn file included from 
n../src/s2/s2shape.he      : | 25a                     ^b:
s
lIn file included from _../src/s2/s2coder.hn:o23n:
n/usr/local/clang/include/absl/status/status.hu:l1063l: 13_:N owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull
       1063|  |                      ^c
onst char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shapeutil_coding.cc241: | 18#:
dIn file included from e../src/s2/s2shapeutil_coding.hf:i44n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
_/usr/local/clang/include/absl/strings/cord.hN:o1514n:n29u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                In file included from  s2/s2shapeutil_coding.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_coding.h : 44 :
 In file included from \../src/s2/s2coder.h
:      23| :
                                                   ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/container/internal/common.h:
:32/usr/local/clang/include/absl/strings/cord.h::91530:: 55:note:  macro 'ABSL_INTERNAL_IF_false' defined here
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | # d1530e | fiinnlei nAeB SCLo_rIdN:T:ECRhNuAnLk_IItFe_rfaatlosre:(:iCfh_usnaktIitsefriaetdo,r (.c.o.n)s t_ _CVoAr_dA*R GaSb_s_l
_      n| o        ^n
null cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]31
:
/usr/local/clang/include/absl/synchronization/mutex.h  :6211146 | : 7 :A Bwarning: S'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
_INTERN A1146L | _ X ( t r y_em ptlhaicse),)  tArByS_Le_mEpXlCaLcUeS_IiVmEp_lL,O C&K&_,F UtNrCuTeI)O;N
(      m| u                                                         ^)

      | /usr/local/clang/include/absl/container/internal/btree_container.h      ^~~~:
596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual/usr/local/clang/include/absl/synchronization/mutex.h,: 1153K:V39a:l uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 .. .1153) |      e x p l i c i t   R e l e a s a b l e M\u
t      e| x        ^L
ock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3In file included from :s2/s2shapeutil_build_polygon_boundaries.cc :18warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from   ../src/s2/s2shape.h621: | 25 :
 In file included from A../src/s2/s2coder.hB:S23L:
_In file included from I/usr/local/clang/include/absl/status/status.hN:T67E:
RIn file included from N/usr/local/clang/include/absl/status/internal/status_internal.hA:L29_:
XIn file included from (/usr/local/clang/include/absl/strings/cord.ht:r94y:
_In file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hm:p31l:
a/usr/local/clang/include/absl/synchronization/mutex.hc:e1158,: 53t:r ywarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
mpla c1158e | _ i m p l ,  M&u&t,e xt&r umeu) ;A
B      S| L  ^_
IN/usr/local/clang/include/absl/container/internal/btree_container.hTE:R611N:A52L:_ Anote: Texpanded from macro 'ABSL_INTERNAL_X'T
RIB  U611T | E _ C A P T U R E D _ABBYS(Lt_hIiNsT)E,R
N      A| L                                                    ^~~~_
ATTRIBUTE_CAPTURED_BY(this)),            /usr/local/clang/include/absl/synchronization/mutex.h : 1166 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1166\ | 
        | e                                                   ^x
pl/usr/local/clang/include/absl/container/internal/common.hi:c31i:t9 :R enote: lmacro 'ABSL_INTERNAL_IF_true' defined heree
asa   b31l | e#MduetfeixnLeo cAkB(SMLu_tIeNxT*E RaNbAsLl__InFo_ntnruulel( imfu_,s actoinssfti eCdo,n d.i.t.i)o ni&f _csoantdi)s
f      i| e                                      ^d

      | /usr/local/clang/include/absl/base/nullability.h        ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2shapeutil_conversion.cce: 18a:
bIn file included from s../src/s2/s2shapeutil_conversion.hl:_28n:
oIn file included from n../src/s2/s2polygon.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.h_:N30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l67l:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 621                     ^:
3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&In file included from ,s2/s2shapeutil_build_polygon_boundaries.cc :t18r:
uIn file included from e../src/s2/s2shapeutil_build_polygon_boundaries.h):;23
:
      In file included from | ../src/s2/s2shape.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
25:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/btree_container.h::23611:
:In file included from 47/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h  :61194 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1179 : 10A:B Swarning: Ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
INT E1179R | N A LM_uAtTeTxR*I BaUbTsEl__CnAuPlTlUaRbElDe_ BmYu(_t;h
i      s| )         ^)
, /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l\_
n      u| l                                              ^~~~l
able _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      | In file included from                                                    ^s2/s2shapeutil_conversion.cc
:18:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2shapeutil_conversion.h::24128::
22In file included from :../src/s2/s2polygon.h :34note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/mutable_s2shape_index.h:30  :
241In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d67e:
f/usr/local/clang/include/absl/container/internal/btree_container.hi:n624e: 3a:b swarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
nonn  u624l | l   _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |   In file included from  s2/s2shapeutil_build_polygon_boundaries.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h : 23A:
BIn file included from In file included from Ss2/s2shapeutil_coding.ccL:_18I:
NIn file included from T../src/s2/s2shapeutil_coding.hE:R44N:
AIn file included from L../src/s2/s2coder.h_:A23T:
TIn file included from R/usr/local/clang/include/absl/status/status.hI:B67U:
TIn file included from E/usr/local/clang/include/absl/status/internal/status_internal.h_:C29A:
PT/usr/local/clang/include/absl/strings/cord.hU:R1666E:D48_:B Ywarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
his) )1666, |  i n l i n e   C o r d   C o r d : : A d v a n c e A\n
d      R| e                                                   ^a
d(/usr/local/clang/include/absl/container/internal/common.hC:h31a:r9I:t enote: rmacro 'ABSL_INTERNAL_IF_true' defined herea
tor   *31  | a#bdself_innoen nAuBlSlL _iItN,T
E      R| N                                               ^A
L_I/usr/local/clang/include/absl/base/nullability.hF:_241t:r22u:e (note: iexpanded from macro 'absl_nonnull'f
_s  a241t | i#sdfeifeidn,e  .a.b.s)l _info_nsnautlils f_iNeodn
n      u| l        ^l

      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplaIn file included from cs2/s2shapeutil_coding.cce:,18 :
tIn file included from r../src/s2/s2shapeutil_coding.hy:_44e:
mIn file included from p../src/s2/s2coder.hl:a23c:
eIn file included from _/usr/local/clang/include/absl/status/status.hh:i67n:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hi:m29p:
l/usr/local/clang/include/absl/strings/cord.h,: 1672c:o41n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
, tr u1672e | ,i
n      l| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
e v  o625i | d   C o r d : : A d v a n c e ( C h acroIntsetr_aittoerr*a taobrs(lh_innotn)n uAlBlS Li_tI,N TsEiRzNeA_Lt_ CnO_MbMyAt)e;s
)       | {                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      |                                         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:/usr/local/clang/include/absl/base/nullability.h47::241 :22note: :expanded from macro 'ABSL_INTERNAL_X' 
note: expanded from macro 'absl_nonnull'
  611   | 241  |  # d e f i n e   aAbBsSlL__nIoNnTnEuRlNlA L__ANToTnRnIuBlUlT
E      _| C                     ^A
PTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
null _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | vIn file included from os2/s2shapeutil_conversion.cci:d18 :
RIn file included from e../src/s2/s2shapeutil_conversion.hg:i28s:
tIn file included from e../src/s2/s2polygon.hr:M34u:
tIn file included from e../src/s2/mutable_s2shape_index.hx:P33r:
oIn file included from f../src/s2/base/commandlineflags.hi:l21e:
rIn file included from (/usr/local/clang/include/absl/flags/flag.hv:o42i:
dIn file included from  /usr/local/clang/include/absl/flags/internal/flag.h(:*30a:
bs/usr/local/clang/include/absl/base/call_once.hl:_52n:o24n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 fn)   (52i | nstt6d4:_:ta twoamiitc_<cuyicnlte3s2)_)t;>
*       | a                                  ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n241o:n22n:u lnote: lexpanded from macro 'absl_nonnull' 
Co  n241t | r#odleWfoirnde( 
a      b| s                       ^l
_no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^In file included from 
s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2shapeutil_conversion.cc:
:In file included from 18/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2shapeutil_conversion.h:
:In file included from 28/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2polygon.h:
:In file included from 34/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/mutable_s2shape_index.h:
:In file included from 33/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/base/commandlineflags.h:
:21/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 1293/usr/local/clang/include/absl/flags/flag.h::3342::
 In file included from /usr/local/clang/include/absl/flags/internal/flag.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]30
:
/usr/local/clang/include/absl/base/call_once.h:53: 221293: |  vwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
d R   e53g | i s t e raMbustle:x:Tornaccee_rf(lvaogi*d  a(b*salb_snlo_nnnounlnlu lfll afgn));(
c      o| n                     ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli nmes ga,b
s      l| _                                ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(voiIn file included from ds2/s2shapeutil_conversion.cc :(18*:
aIn file included from b../src/s2/s2shapeutil_conversion.hs:l28_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :f33n:
)In file included from (../src/s2/base/commandlineflags.hc:o21n:
sIn file included from t/usr/local/clang/include/absl/flags/flag.h :c42h:
aIn file included from r/usr/local/clang/include/absl/flags/internal/flag.h*: 30a:
b/usr/local/clang/include/absl/base/call_once.hs:l96_:n33o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l ms   g96, | 
        | f                                                             ^r
ie/usr/local/clang/include/absl/base/nullability.hn:d241 :s22t:d :note: :expanded from macro 'absl_nonnull'a
to  m241i | c#<dueifnitn3e2 _atb>s*l _anbosnln_unloln n_uNloln nbualsle
_      i| n                     ^t
ernal::CIn file included from os2/s2shapeutil_build_polygon_boundaries.ccn:t18r:
oIn file included from l../src/s2/s2shapeutil_build_polygon_boundaries.hW:o23r:
dIn file included from (../src/s2/s2shape.h
:      25| :
                                ^In file included from 
../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/strings/cord.h:  94241:
 | In file included from #/usr/local/clang/include/absl/strings/internal/cordz_info.hd:e31f:
i/usr/local/clang/include/absl/synchronization/mutex.hn:e1294 :a62b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onn u1294l | l   _ N o n n u l l 
        |                       ^ 
        In file included from  s2/s2shapeutil_conversion.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_conversion.h : 28 :
 In file included from  ../src/s2/s2polygon.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 33 :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h :c42o:
nIn file included from s/usr/local/clang/include/absl/flags/internal/flag.ht: 30v:
o/usr/local/clang/include/absl/base/call_once.hi:d97*: 18a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non   n97u | l l   o b j ,o
n      c| e                                                             ^_
fl/usr/local/clang/include/absl/base/nullability.ha:g241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle ffilnaeg )a;b
s      l| _                 ^n
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :_ Nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine absl_nonnull _NonnullIn file included from 
s2/s2shapeutil_build_polygon_boundaries.cc      :| 18                     ^:

In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #deIn file included from fs2/s2shapeutil_conversion.cci:n18e:
 In file included from a../src/s2/s2shapeutil_conversion.hb:s28l:
_In file included from n../src/s2/s2polygon.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 33_:
NIn file included from o../src/s2/base/commandlineflags.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/flags/flag.h
:      42| :
                     ^In file included from 
/usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.hIn file included from :s2/s2shapeutil_build_polygon_boundaries.cc111::1840:
:In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h:warning: 23:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h  :11123 | :
vIn file included from o/usr/local/clang/include/absl/status/status.hi:d67 :
LIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hw:L29e:
vIn file included from e/usr/local/clang/include/absl/strings/cord.hl:C94a:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hO:n31c:
e/usr/local/clang/include/absl/synchronization/mutex.h(:a1310b:s17l:: :warning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ce_ f1310l | a g *   acbosnls_tn ocnhnaurl*l  afblsalg_,n oCnanlullalb lmes&g& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shapeutil_coding.cc153: | 18 :
 In file included from  ../src/s2/s2shapeutil_coding.h :C44a:
lIn file included from l../src/s2/s2coder.hO:n23c:
eIn file included from I/usr/local/clang/include/absl/status/status.hm:p67l:
(s/usr/local/clang/include/absl/status/internal/status_internal.ht:d119:::14a:t owarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
c<u  i119n | t 3 2S_tta>t*u saRbespl*_ naobnsnlu_lnlo ncnounltlr oCll,o
n      e| (                                        ^

      |              ^/usr/local/clang/include/absl/base/nullability.h
:241:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | voiIn file included from ds2/s2shapeutil_visit_crossing_edge_pairs.cc :S18e:
tIn file included from F../src/s2/s2shapeutil_visit_crossing_edge_pairs.hl:a23g:
(In file included from a../src/s2/s2crossing_edge_query.hb:s31l:
:In file included from :../src/s2/s2padded_cell.hF:l23a:
gIn file included from <../src/s2/s2cell_id.hT:>32*:
 In file included from a/usr/local/clang/include/absl/hash/hash.hb:s89l:
_In file included from n/usr/local/clang/include/absl/hash/internal/hash.ho:n79n:
u/usr/local/clang/include/absl/base/internal/endian.hl:l172 :f27l:a gwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
con  s172t |  iTn&l ivn)e  {v
o      i| d                            ^ 
Store/usr/local/clang/include/absl/base/nullability.h3:2241(:v22o:i dnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  apb,s lu_innotn3n2u_ltl  v_)N o{n
n      u| l                          ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFIn file included from ls2/s2shapeutil_visit_crossing_edge_pairs.cca:g18(:
aIn file included from b../src/s2/s2shapeutil_visit_crossing_edge_pairs.hs:l23::
:In file included from F../src/s2/s2crossing_edge_query.hl:a31g:
<In file included from T../src/s2/s2padded_cell.h>:*23 :
aIn file included from b../src/s2/s2cell_id.hs:l32_:
nIn file included from o/usr/local/clang/include/absl/hash/hash.hn:n89u:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h :f79l:
a/usr/local/clang/include/absl/base/internal/endian.hg:,176 :c36o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
V&   v176) |  i{n
l      i| n                            ^e
 u/usr/local/clang/include/absl/base/nullability.hi:n241t:6224:_ tnote:  expanded from macro 'absl_nonnull'L
oa  d2416 | 4#(dceofnisnte  vaobisdl*_ naobnsnlu_lnlo n_nNuolnln upl)l 
{      
|                            ^| 
                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(cIn file included from os2/s2shapeutil_coding.ccn:s18t:
 In file included from v../src/s2/s2shapeutil_coding.ho:i44d:
*In file included from  ../src/s2/s2coder.ha:b23s:
l_/usr/local/clang/include/absl/status/status.hn:o725n:n38u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
) {
        | 725                                   ^ | 
  /usr/local/clang/include/absl/base/nullability.hs:t241a:t22i:c  note: sexpanded from macro 'absl_nonnull't
at  u241s | _#idnetfeirnnea la:b:sSlt_antounsnRuelpl*  _aNbosnln_unloln
n      u| l                     ^l
 PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2shapeutil_visit_crossing_edge_pairs.ccn:u18l:
lIn file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:N23o:
nIn file included from n../src/s2/s2crossing_edge_query.hu:l31l:

In file included from       ../src/s2/s2padded_cell.h| :                     ^23
:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void*In file included from  s2/s2shapeutil_coding.cca:b18s:
lIn file included from _../src/s2/s2shapeutil_coding.hn:o44n:
nIn file included from u../src/s2/s2coder.hl:l23 :
p/usr/local/clang/include/absl/status/status.h,: 732u:i29n:t 1In file included from warning: 6s2/s2shapeutil_build_polygon_boundaries.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_:t
 18v:
)In file included from    ../src/s2/s2shapeutil_build_polygon_boundaries.h{732:
 | 23       :
|  In file included from                           ^s../src/s2/s2shape.h
t:a25/usr/local/clang/include/absl/base/nullability.ht:
:iIn file included from c241 ../src/s2/s2coder.h:c:o2223n::
s tIn file included from note:  expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.hs
:t67  d:
241:In file included from : | /usr/local/clang/include/absl/status/internal/status_internal.h#sd:te29rf:
iin/usr/local/clang/include/absl/strings/cord.hng:e* 109a :ab53bs:ls_ lnwarning: o_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nnn
ounlnlu   l_109lN |  ovEonminpdutl yClS
otp      ryi| Cno                     ^gr
(d)T;o
S      t| r                            ^i
ng/usr/local/clang/include/absl/base/nullability.h(:c241o:n22s:t  note: Cexpanded from macro 'absl_nonnull'o
rd  &241  | s#rdce,f isnted :a:bsstlr_innogn*n ualblsIn file included from  ls2/s2shapeutil_visit_crossing_edge_pairs.cc__n:No18no:
nnuIn file included from nlu../src/s2/s2shapeutil_visit_crossing_edge_pairs.hll :ld
23s      :
t| )In file included from ;                     ^../src/s2/s2crossing_edge_query.h

:      31| :
                                                    ^In file included from 
../src/s2/s2padded_cell.h:23:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2cell_id.h::24132::
22In file included from :/usr/local/clang/include/absl/hash/hash.h :89note: :
In file included from expanded from macro 'absl_nonnull'In file included from s2/s2shapeutil_coding.cc
/usr/local/clang/include/absl/hash/internal/hash.h::18  79:
241:
In file included from  | ../src/s2/s2shapeutil_coding.h/usr/local/clang/include/absl/base/internal/endian.h#::d44258e:
:fIn file included from 36i../src/s2/s2coder.hn:e:  a23warning: b:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
/usr/local/clang/include/absl/status/status.hl:_733n  :o258n29n | :iu lnwarning: lltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i n
_eN ou  ni733nn | ut 3l 2ls_
tt      a t| Li                     ^oca
 dc3o2n(scto nssttd :v:ositdr*i nagb*s la_bnIn file included from sos2/s2shapeutil_build_polygon_boundaries.ccln:_n18nu:
olIn file included from nl../src/s2/s2shapeutil_build_polygon_boundaries.hn up:l)l23  {M:

oIn file included from v      ../src/s2/s2shape.he| :                                   ^d25F
:
rIn file included from o/usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.hm::23:
In file included from /usr/local/clang/include/absl/status/status.h241::6722:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/strings/cord.h:  110241: | 55#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a  b110s | lv_oniodn nAuplple n_dNCoonrnduTlolS
t      r| i                     ^n
g(const Cord& src, std::string* absl_nonnull dst);
      In file included from | s2/s2shapeutil_visit_crossing_edge_pairs.cc                                                      ^:
18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22../src/s2/s2crossing_edge_query.h:: 31:
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2padded_cell.h
:23:
  In file included from 241../src/s2/s2cell_id.h | :#32d:
eIn file included from f/usr/local/clang/include/absl/hash/hash.hi:n89e:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
_/usr/local/clang/include/absl/base/internal/endian.hn:o262n:n27u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
Non  n262u | liln
l      i| n                     ^e
 void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
String();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defiIn file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:32:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:18:
In file included from ../src/s2/s2shapeutil_get_reference_point.h:21:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absnle_ naobnsnlu_lnlu>l(l a b l e  \_
N      u| l                                                            ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241
:      22| :                      ^ 
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // In file included from Ws2/s2shapeutil_coding.ccr:i18t:
eIn file included from  ../src/s2/s2shapeutil_coding.hd:a44t:
aIn file included from  ../src/s2/s2coder.ht:o23 :
th/usr/local/clang/include/absl/status/status.he: 1031r:e42s:u lwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |           ^
 1031 | i/usr/local/clang/include/absl/base/nullability.hn:l241i:n22e:  cnote: oexpanded from macro 'absl_nonnull'n
st   s241t | a#tduesf_iinnet earbnsall_:n:oSntnautluls R_eNpo*n naublsll
_      n| o                     ^n
null Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2shapeutil_build_polygon_boundaries.cc | :#18d:
eIn file included from f../src/s2/s2shapeutil_build_polygon_boundaries.hi:n23e:
 In file included from a../src/s2/s2shape.hb:s25l:
_In file included from n../src/s2/s2coder.ho:n23n:
uIn file included from l/usr/local/clang/include/absl/status/status.hl: 67_:
NIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl:
937      :| 35                     ^:
 warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2shapeutil_coding.cc:: 18:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2shapeutil_coding.h
:44:
  In file included from 257../src/s2/s2coder.h | :#23d:
e/usr/local/clang/include/absl/status/status.hf:i1038n:e33 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nul l1038a | b l e   _sNtualtluasb_lien
t      e| r                      ^n
al::StatusRep* absl_noIn file included from ns2/s2shapeutil_build_polygon_boundaries.ccn:u18l:
lIn file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.hr:e23p:
)In file included from  ../src/s2/s2shape.h{:
25      :
| In file included from                                 ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/status/status.h::24167::
22In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h
:938:  35241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin  e938  | a b s l _anbosnln:u:lclo r_dN_oinnntuelrln
a      l| :                     ^:
CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2shapeutil_coding.cc
:18:
In file included from ../src/s2/s2shapeutil_coding.h:44:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_build_polygon_boundaries.cc :106318 | :
cIn file included from o../src/s2/s2shapeutil_build_polygon_boundaries.hn:s23t:
 In file included from c../src/s2/s2shape.hh:a25r:
*In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29 :
S/usr/local/clang/include/absl/strings/cord.ht:a941t:u35s:M ewarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
age  A941s | C S t r (a
b      s| l            ^:
:co/usr/local/clang/include/absl/base/nullability.hr:d241_:i22n:t enote: rexpanded from macro 'absl_nonnull'n
al  :241: | C#odredfRienpe*  aabbssll__nnounlnlualbll e_ Ncolnenaurl(l)
;      
|                            ^| 
                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from l_s2/util/coding/varint.ccn:o17n:
nIn file included from u../src/s2/util/coding/varint.hl:l44 :
_In file included from N../src/s2/util/bits/bits.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/numeric/bits.hl:
52      :
| In file included from                      ^/usr/local/clang/include/absl/base/internal/endian.h
:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2shapeutil_build_polygon_boundaries.cco:n18n:
uIn file included from l../src/s2/s2shapeutil_build_polygon_boundaries.hl:
23      :
| In file included from                      ^../src/s2/s2shape.h
:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      In file included from | s2/util/coding/varint.cc                                                       ^:
17:
In file included from ../src/s2/util/coding/varint.h/usr/local/clang/include/absl/base/nullability.h::44241:
:In file included from 22../src/s2/util/bits/bits.h:: 21:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/numeric/bits.h
:52:
  In file included from 241/usr/local/clang/include/absl/base/internal/endian.h | :#26d:
e/usr/local/clang/include/absl/base/internal/unaligned_access.hf:i45n:e45 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_non   n45u | liln l_iNnoen nuuilnlt
3      2| _                     ^t
 UnalignedLoad3In file included from 2s2/s2shapeutil_build_polygon_boundaries.cc(:c18o:
nIn file included from s../src/s2/s2shapeutil_build_polygon_boundaries.ht: 23v:
oIn file included from i../src/s2/s2shape.hd:*25 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :p29):
 /usr/local/clang/include/absl/strings/cord.h{:
1050      :| 45                                            ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:  1050note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l la b_sNlo:n:nsutlrli
n      g| _                     ^v
iew* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_build_polygon_boundaries.cc
:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h   :5123 | :
iIn file included from n../src/s2/s2shape.hl:i25n:
eIn file included from  ../src/s2/s2coder.hu:i23n:
tIn file included from 6/usr/local/clang/include/absl/status/status.h4:_67t:
 In file included from U/usr/local/clang/include/absl/status/internal/status_internal.hn:a29l:
i/usr/local/clang/include/absl/strings/cord.hg:n1054e:d37L:o awarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]6
4(co n1054s | t   v o i d *a basbls:l:_cnoorndn_uilnlt epr)n a{l
:      :| C                                            ^o
rd/usr/local/clang/include/absl/base/nullability.hR:e241p:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf irneep ,a
b      s| l                                    ^_
no/usr/local/clang/include/absl/base/nullability.hn:n241u:l22l:  _note: Nexpanded from macro 'absl_nonnull'o
nn  u241l | l#
d      e| f                     ^i
ne absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23In file included from :
s2/util/coding/varint.ccIn file included from :../src/s2/s2shape.h17::
25In file included from :
../src/s2/util/coding/varint.hIn file included from :../src/s2/s2coder.h44::
23In file included from :
../src/s2/util/bits/bits.hIn file included from :/usr/local/clang/include/absl/status/status.h21::
67In file included from :
/usr/local/clang/include/absl/numeric/bits.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h52::
29In file included from :
/usr/local/clang/include/absl/base/internal/endian.h:/usr/local/clang/include/absl/strings/cord.h26::
1061:/usr/local/clang/include/absl/base/internal/unaligned_access.h34::57 :36warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |      57v | oiindl iCnoep yvTooiAdr rUanyaSlliogwnPeadtSht(ocrhea1r6*( vaobisdl*_ naobnsnlu_lnlo ndnsutl)l  cpo,n suti;n
t      1| 6                                 ^_
t /usr/local/clang/include/absl/base/nullability.hv:)241 :{22
:       | note:                                    ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfoinnneu lalb s_lN_onnonnunlull
l       | _                     ^N
onnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline voiIn file included from ds2/s2shapeutil_build_polygon_boundaries.cc :U18n:
aIn file included from l../src/s2/s2shapeutil_build_polygon_boundaries.hi:g23n:
eIn file included from d../src/s2/s2shape.hS:tore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_conversion.cc::24118::
22In file included from :../src/s2/s2shapeutil_conversion.h :28note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2polygon.h:34  :
241In file included from  | ../src/s2/mutable_s2shape_index.h#:d44e:
fIn file included from i../src/s2/s2pointutil.hn:e27 :
ab../src/s2/util/math/matrix3x3.hs:l276_:n5o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l _No  n276n | u l l 
       S| 2                     ^_
CHECK_NE(det, VType(0)) << " Can't inverse. Determinant =In file included from  s2/util/coding/varint.cc0:.17":
;In file included from 
../src/s2/util/coding/varint.h      :| 44    ^:

In file included from ../src/s2/util/bits/bits.h:21:
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/numeric/bits.h37::5221:
:In file included from  /usr/local/clang/include/absl/base/internal/endian.h:note: 26expanded from macro 'S2_CHECK_NE':

/usr/local/clang/include/absl/base/internal/unaligned_access.h:   6537: | 36#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne S   265_ | CiHnElCiKn_eN Ev oCiHdE CUKn_aNlEi
g      n| e                    ^d
Sto/usr/local/clang/include/absl/log/check.hr:e1206:43(:v onote: iexpanded from macro 'CHECK_NE'd
* a  b120s | l _ nAoBnSnLu_lLlO Gp_,I NuTiEnRtN6A4L__tC HvE)C K{_
N      E| _                                   ^I
MP/usr/local/clang/include/absl/base/nullability.hL:(241(:v22a:l 1note: )expanded from macro 'absl_nonnull',
 #  v241a | l#1d,e f(ivnael 2a)b,s l#_vnaoln2n)u
l      l|    ^_
No/usr/local/clang/include/absl/log/internal/check_impl.hn:n51u:l3l:
       | note:                      ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'

   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_conversion.cc:18:
In file included from ../src/s2/s2shapeutil_conversion.h:28:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullablIn file included from es2/util/coding/varint.cc :M17a:
yIn file included from b../src/s2/util/coding/varint.heGe:t44:
In file included from ../src/s2/util/bits/bits.hC:r21c:
CIn file included from o/usr/local/clang/include/absl/numeric/bits.hr:d52S:
ta/usr/local/clang/include/absl/base/internal/endian.ht:e160(:)36 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t;
      |                                       ^160
 | inl/usr/local/clang/include/absl/base/nullability.hi:n257e: 23u:i nnote: texpanded from macro 'absl_nullable'1
6_t   257L | o#adde1f6i(nceo nasbts lv_oniudl*l aabblsel __nNounlnlualbll ep
)       | {                      ^

      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(chaIn file included from rs2/util/coding/varint.cc*: 17a:
bIn file included from s../src/s2/util/coding/varint.hl:_44n:
oIn file included from n../src/s2/util/bits/bits.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/numeric/bits.hd:s52t:
)/usr/local/clang/include/absl/base/internal/endian.h :c164o:n27s:t ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                              ^
  164/usr/local/clang/include/absl/base/nullability.h | :i241n:l22i:n enote:  expanded from macro 'absl_nonnull'v
oi  d241  | S#tdoerfei1n6e( vaobisdl*_ naobnsnlu_lnlo n_nNuolnln upl,l 
u      i| n                     ^t
16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:17:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 156s2/s2shapeutil_build_polygon_boundaries.cc | :b18o:
oIn file included from l../src/s2/s2shapeutil_build_polygon_boundaries.h :s23a:
fIn file included from e../src/s2/s2shape.h_:s25t:
rIn file included from t../src/s2/s2coder.ho:823_:
bIn file included from a/usr/local/clang/include/absl/status/status.hs:e67(:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29::
:s/usr/local/clang/include/absl/strings/cord.ht:r1268i:n51g:_ vwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
w tex t1268, |  iinnlti8n_et *v oaibds lC_onrodn:n:uIlnll ivnaelRueep,:
:      E| m                                                      ^p
la/usr/local/clang/include/absl/base/nullability.hc:e241T:r22e:e (note: Cexpanded from macro 'absl_nonnull'o
rd  R241e | p#*d eafbisnle_ naobnsnlu_lnlo nrneupl,l
       _| N                                                  ^o
nnul/usr/local/clang/include/absl/base/nullability.hl:
241      :| 22                     ^:
 note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2shapeutil_get_reference_point.ccu:l23l:
 In file included from _../src/s2/s2contains_vertex_query.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                     ^:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnulIn file included from ls2/s2shapeutil_build_polygon_boundaries.cc :v18a:
lIn file included from u../src/s2/s2shapeutil_build_polygon_boundaries.he:,23
:
      In file included from | ../src/s2/s2shape.h                                                        ^:
25:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2coder.h::24123::
22In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29  :
241 | /usr/local/clang/include/absl/strings/cord.h#:d1275e:f51i:n ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_ n1275o | ninnulliln e_ Nvoonindu lClo
r      d| :                     ^:
InlineRep::EmplaceTree(CorIn file included from ds2/s2shapeutil_get_reference_point.ccR:e23p:
*In file included from  ../src/s2/s2contains_vertex_query.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.h:n66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l70l:
 In file included from r/usr/local/clang/include/absl/container/internal/layout.he:p198,:

In file included from       /usr/local/clang/include/absl/strings/str_cat.h| :                                                  ^116
:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:/usr/local/clang/include/absl/base/nullability.h23::
241:/usr/local/clang/include/absl/strings/numbers.h22::160 :57note: :expanded from macro 'absl_nonnull' 
warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
 | #de  f160i | nbeo oalb ssla_fneo_nsnturltlo 3_2N_obnansuel(la
b      s| l                     ^:
:string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnuIn file included from ls2/s2shapeutil_build_polygon_boundaries.ccl: 18_:
NIn file included from o../src/s2/s2shapeutil_build_polygon_boundaries.hn:n23u:
lIn file included from l../src/s2/s2shape.h
:      25| :
                     ^In file included from 
../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from  s2/s2shapeutil_get_reference_point.cc1282: | 23i:
nIn file included from l../src/s2/s2contains_vertex_query.hi:n21e:
 In file included from v/usr/local/clang/include/absl/container/btree_map.ho:i66d:
 In file included from C/usr/local/clang/include/absl/container/internal/btree.ho:r70d:
:In file included from :/usr/local/clang/include/absl/container/internal/layout.hI:n198l:
iIn file included from n/usr/local/clang/include/absl/strings/str_cat.he:R116e:
pIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h::S23e:
t/usr/local/clang/include/absl/strings/numbers.hT:r162e:e57(:C owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
Rep*   162a | bbsolo_ln osnanfuel_ls trretpo,6
4      _| b                                              ^a
se/usr/local/clang/include/absl/base/nullability.h(:a241b:s22l:: :note: sexpanded from macro 'absl_nonnull't
ri  n241g | _#vdieefwi ntee xatb,s li_nnto6n4n_utl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:In file included from 23s2/s2shapeutil_build_polygon_boundaries.cc:
:In file included from 18../src/s2/s2contains_vertex_query.h:
:In file included from 21../src/s2/s2shapeutil_build_polygon_boundaries.h:
:In file included from 23/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/s2shape.h:
:In file included from 25/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198/usr/local/clang/include/absl/status/status.h:
:In file included from 67/usr/local/clang/include/absl/strings/str_cat.h:
:In file included from 116/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29/usr/local/clang/include/absl/strings/internal/stringify_sink.h:
:23/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/strings/numbers.h1290::16554::39 : warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

   1290165 |  | i n l i n e   v o i d   C o r d : : I n l i n e Raebps:l::S:eitnTtr1e2e8O*r Eambpstly_(nCoonrnduRlelp *v aalbusel,_ niunltl abbalsee )r;e
p      ,| 
                                      ^      
|                                                      ^/usr/local/clang/include/absl/base/nullability.h
:241:/usr/local/clang/include/absl/base/nullability.h22::257 :note: 23expanded from macro 'absl_nonnull': note: expanded from macro 'absl_nullable'
  
257 | #  d241e | f#idneef ianbes la_bnsull_lnaobnlneu l_lN u_lNloanbnluel
l      
|                             ^| 
                     ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view In file included from ts2/s2shapeutil_build_polygon_boundaries.cce:x18t:
,In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.hu:i23n:
tIn file included from 8../src/s2/s2shape.h_:t25*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
uIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hl: 29v:
a/usr/local/clang/include/absl/strings/cord.hl:u1301e:,56
:       | warning:                                                         ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241: 221301: |  inote: nexpanded from macro 'absl_nonnull'l
in  e241 In file included from  | v#s2/s2shapeutil_coding.ccod:ie18fd:
 iCIn file included from no../src/s2/s2shapeutil_coding.her :adb45:s::
IlnIn file included from _ln../src/s2/s2shape.hion:nenR27eup:
l:In file included from :l../src/s2/s2pointutil.h C:o_m27mN:
oin../src/s2/util/math/matrix3x3.hntu:lT276lr:e
e5      (:c|  o                     ^nwarning: s
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
 Cord  R276e | p *   a bSs2l__CnHuElClKIn file included from a_bNls2/s2shapeutil_get_reference_point.cceE :(o23ldd:
_erIn file included from te../src/s2/s2contains_vertex_query.h,p ,:V
T21      y:
| pIn file included from                                                        ^e/usr/local/clang/include/absl/container/btree_map.h
(:066/usr/local/clang/include/absl/base/nullability.h):
:)In file included from  257/usr/local/clang/include/absl/container/internal/btree.h<::<2370 ::
" In file included from  /usr/local/clang/include/absl/container/internal/layout.hnote: C:expanded from macro 'absl_nullable'a198
n:
'In file included from   t/usr/local/clang/include/absl/strings/str_cat.h 257:i | 116#n:
dvIn file included from ee/usr/local/clang/include/absl/strings/internal/stringify_sink.hfri:sn23ee:
. /usr/local/clang/include/absl/strings/numbers.h a:Db168estl:e_59rn:mu ilwarning: nltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aa
nbtl e   =168_ N0 | u.bl"lo;aob
ll       e| 
s    ^a      f
e| _                      ^s
../src/s2/base/logging.ht:r37t:o21u:1 note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:18:
In file included from ../src/s2/s2shapeutil_coding.h:45:
In file included from ../src/s2/s2shape.h:27:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
6_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonIn file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlineRep::CopyToArray(char* absl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
null buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INIn file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
TERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
null _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
nnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | voiIn file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
d AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnulIn file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   l dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:18:
In file included from ../src/s2/s2shapeutil_build_polygon_boundaries.h:23:
In file included from ../src/s2/s2shape.h:25:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:33:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25In file included from :
s2/util/coding/varint.ccIn file included from :../src/s2/util/coding/coder.h24::
36In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/base/casts.h21::
34In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/log/log.h37::
209In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h21::
22In file included from :
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/log/internal/log_message.h41::
190In file included from :/usr/local/clang/include/absl/log/internal/strip.h42::26 :
In file included from warning: /usr/local/clang/include/absl/log/internal/log_message.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:  27190:
 | In file included from  /usr/local/clang/include/absl/log/internal/proto.h :L34o:
gM/usr/local/clang/include/absl/types/span.he:s212s:a22g:e &warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
pera  t212o | r < <u(ssitndg: :poositnrteearm &=  (T**a basbls_ln_onnunlullalb iml)i(tsyt_du:n:konsotwrne;a
m      &|                       ^o
s));/usr/local/clang/include/absl/base/nullability.h
:      289| :                                         ^34
: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nullability_unknown'241
:22:   289note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naublslla_bniolnintuyl_lu n_kNnoonwnnu l_lN
u      l| l                     ^
_unspecified
      |                                  ^
In file included from In file included from s2/util/coding/varint.cc:24::
 In file included from ../src/s2/base/logging.h:warning: 21:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21  :
542In file included from  | /usr/local/clang/include/absl/log/internal/check_op.h : 41A:
BIn file included from S/usr/local/clang/include/absl/log/internal/strip.hL:_26I:
NIn file included from T/usr/local/clang/include/absl/log/internal/log_message.hE:R47N:
AIn file included from L/usr/local/clang/include/absl/log/internal/structured_proto.h_:X27(:
iIn file included from n/usr/local/clang/include/absl/log/internal/proto.hs:e34r:
t/usr/local/clang/include/absl/types/span.h_:o213r:_34a:s swarning: itype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]g
n,   i213n | s e ruts_ionrg_ acsosnisgtn__piomipnlt,e r& &=,  ccoonnsstt  T&*,  afbaslls_en,u
l      l| a  ^b
ilit/usr/local/clang/include/absl/container/internal/btree_container.hy:_511u:n52k:n onote: wexpanded from macro 'ABSL_INTERNAL_X'n
;
      |                                  ^  
511 |  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :   note:  expanded from macro 'absl_nullability_unknown' 
ABS  L289_ | I#NdTeEfRiNnAeL _aAbTsTlR_InBuUlTlEa_bCiAlPiTtUyR_EuDn_kBnYo(wtnh i_sN)u)l)l _ u n s p e c i f i e d 
        |                                   ^ 
       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void*/usr/local/clang/include/absl/container/internal/btree_container.h :a544b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null   544p | )   {A
B      S| L                                            ^_
INTERNAL_X/usr/local/clang/include/absl/base/nullability.h(:i241n:s22e:r tnote: _expanded from macro 'absl_nonnull'o
r_  a241s | s#idgenf,i nien saebrstl__onro_nanull s_sNiognnn_uilmlp
l      ,|                       ^&
&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                   In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from \../src/s2/s2wedge_relations.h
:      24| :
                                                   ^In file included from 
../src/s2/s2point.h:24/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31/usr/local/clang/include/absl/hash/hash.h::989::
 In file included from note: /usr/local/clang/include/absl/hash/internal/hash.hmacro 'ABSL_INTERNAL_IF_true' defined here:
79:
In file included from    /usr/local/clang/include/absl/base/internal/endian.h31: | 26#:
d/usr/local/clang/include/absl/base/internal/unaligned_access.he:f45i:n45e:  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_IN   T45E | RiNnAlLi_nIeF _utirnute3(2i_ft_ sUantailsifgineedd,L o.a.d.3)2 (icfo_nssatt ivsofiide*d 
a      b| s        ^l
_nonnull pIn file included from )s2/s2shapeutil_get_reference_point.cc :{23
:
      In file included from | ../src/s2/s2contains_vertex_query.h                                            ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22/usr/local/clang/include/absl/container/internal/btree_container.h:: 544note: :expanded from macro 'absl_nonnull'3
:   warning: 241'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
#defi  n544e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   falseIn file included from )s2/s2wedge_relations.cc;:
18      :
| In file included from                   ~~~~~~../src/s2/s2wedge_relations.h
:24:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2point.h::50924::
47In file included from :/usr/local/clang/include/absl/hash/hash.h :note: 89expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79  :
509In file included from  | /usr/local/clang/include/absl/base/internal/endian.h : 26 :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h : 51 : 45 :  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_IN   T51E | RiNnAlLi_nAeT TuRiInBtU6T4E__tC AUPnTaUlRiEgDn_eBdYLoad64(s2/s2shapeutil_contains_brute_force.ccc:o18n:
sIn file included from t../src/s2/s2shapeutil_contains_brute_force.h :v21o:
iIn file included from d../src/s2/s2point.h*: 25a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
oIn file included from n../src/s2/base/casts.hn:u34l:
lIn file included from  /usr/local/clang/include/absl/log/log.hp:)209 :
{In file included from 
/usr/local/clang/include/absl/log/internal/log_impl.h      :| 22                                            ^:

/usr/local/clang/include/absl/log/internal/log_message.h:191/usr/local/clang/include/absl/base/nullability.h::43241:: 22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  241   | 191# | d e fLiongeM easbssalg_en&o nonpuelrla t_oNro<n<n(usltld
:      :| i                     ^o
s_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2wedge_relations.ccb:s18l:
_In file included from n../src/s2/s2wedge_relations.ho:n24n:
uIn file included from l../src/s2/s2point.hl: 24_:
NIn file included from o/usr/local/clang/include/absl/hash/hash.hn:n89u:
lIn file included from l/usr/local/clang/include/absl/hash/internal/hash.h
:      79| :
                     ^In file included from 
/usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonIn file included from ns2/s2shapeutil_contains_brute_force.ccu:l18l:
 In file included from p../src/s2/s2shapeutil_contains_brute_force.h,: 21u:
iIn file included from n../src/s2/s2point.ht:6254:
_In file included from t../src/s2/util/coding/coder.h :v36):
 In file included from {../src/s2/base/casts.h
:      34| :
                                   ^In file included from 
/usr/local/clang/include/absl/log/log.h:209/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/log_impl.h::2222::
 /usr/local/clang/include/absl/log/internal/log_message.hnote: :expanded from macro 'absl_nonnull'306
:3:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e306  | a b salb_snlo_nnnounlnlu l_lN osntndu:l:lu
n      i| q                     ^u
e_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MakeSpan(T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:739:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  739 | Span<T> MakeSpan(T* absl_nullable begin ABSL_ATTRIBUTE_LIFETIME_BOUND,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTEIn file included from _s2/util/coding/varint.ccC:A24P:
TIn file included from U../src/s2/base/logging.hR:E21D:
_In file included from B/usr/local/clang/include/absl/log/check.hY:(37t:
hIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hs:)21):
)In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h : 47 :
 In file included from  /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
 In file included from  /usr/local/clang/include/absl/log/internal/proto.h : 34 :
\/usr/local/clang/include/absl/types/span.h
:      794| :                                                   ^8
: warning: /usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
32:  9794: |   note:  macro 'ABSL_INTERNAL_IF_false' defined here 
 T   *32  | a#bdself_innuel lAaBbSlLe_ IpNtTrE RANBASLL__IAFT_TfRaIlBsUeT(Ei_fL_IsFaEtTiIsMfEi_eBdO,U N.D.,. )s i_z_eV_At_ AsRiGzSe_)_ 
n      o| e        ^x
cept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<coIn file included from ns2/s2shapeutil_get_reference_point.ccs:t23 :
TIn file included from >../src/s2/s2contains_vertex_query.h :M21a:
kIn file included from e/usr/local/clang/include/absl/container/btree_map.hC:o67n:
s/usr/local/clang/include/absl/container/internal/btree_container.ht:S547p:a23n:( Twarning: *passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
abs  l547_ | n u l l a b l e   b e g i n 
        |                                 ^ 
tr/usr/local/clang/include/absl/base/nullability.hu:e257):;23
:       | note:                       ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/container/internal/btree_container.h  :257496 | :#9d:e fnote: imacro 'ABSL_INTERNAL_X' defined heren
e a  b496s | l#_dneuflilnaeb lAeB S_LN_uIlNlTaEbRlNeA
L      _| X                      ^(
Func, CalleIn file included from es2/util/coding/varint.cc,: 24K:
QIn file included from u../src/s2/base/logging.ha:l21,:
 In file included from M/usr/local/clang/include/absl/log/check.hQ:u37a:
lIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :K21V:
aIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hu:e41,:
 In file included from M/usr/local/clang/include/absl/log/internal/strip.hV:a26l:
uIn file included from e/usr/local/clang/include/absl/log/internal/log_message.h,: 47.:
.In file included from ./usr/local/clang/include/absl/log/internal/structured_proto.h): 27 :
 In file included from  /usr/local/clang/include/absl/log/internal/proto.h :\34
:
      /usr/local/clang/include/absl/types/span.h| :        ^801
:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 | In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89t:
rIn file included from u/usr/local/clang/include/absl/hash/internal/hash.he:)79;:

      /usr/local/clang/include/absl/base/internal/endian.h| :                  ~~~~~160
:36: /usr/local/clang/include/absl/container/internal/btree_container.h:warning: 509type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
47: note: expanded from macro 'ABSL_INTERNAL_X'  
160 | i  n509l | i n e   u i n t 1 6 _AtB SLLo_aIdN1T6E(RcNoAnLs_tA TvToRiIdB*U TaEb_sClA_PnToUnRnEuDl_lB Yp()t h{i
s      )| )                                   ^,
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e\ 
a      b| s                                              ^~~~l
_nonnul/usr/local/clang/include/absl/container/internal/btree_container.hl: 546_:N3o:n nwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
l
/usr/local/clang/include/absl/container/internal/btree_container.h      :| 511                     ^:
52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(tIn file included from hs2/s2wedge_relations.cci:s18):
)In file included from )../src/s2/s2wedge_relations.h : 24 :
 In file included from  ../src/s2/s2point.h : 24 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h : 164 : 27 :\ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                   ^

/usr/local/clang/include/absl/container/internal/common.h  :16431 | :i9n:l inote: nmacro 'ABSL_INTERNAL_IF_true' defined heree
 vo   i31d |  #Sdteofrien1e6 (AvBoSiLd_*I NaTbEsRlN_AnLo_nInFu_ltlr upe,( iufi_nsta1t6i_stf ive)d ,{ 
.      .| .                          ^)
 i/usr/local/clang/include/absl/base/nullability.hf:_241s:a22t:i snote: fexpanded from macro 'absl_nonnull'i
ed  
241       | | #        ^d
efine absl_noIn file included from ns2/s2shapeutil_get_reference_point.ccnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/container/internal/btree_container.h :note: 550expanded from macro 'absl_nonnull':
24:   241warning:  | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]#
def  i550n | e   a b s l _ n o n n u l l   _ N o nfnaullsle
)      ;| 
                     ^      
|                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQuIn file included from as2/s2wedge_relations.ccl:,18 :
MIn file included from Q../src/s2/s2wedge_relations.hu:a24l:
,In file included from  ../src/s2/s2point.hK:V24a:
lIn file included from u/usr/local/clang/include/absl/hash/hash.he:,89 :
MIn file included from V/usr/local/clang/include/absl/hash/internal/hash.ha:l79u:
e/usr/local/clang/include/absl/base/internal/endian.h,: 254.:.27.:)  warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \  
254       | | i        ^n
line void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
s2/s2wedge_relations.cc:18:
In file included from   ../src/s2/s2wedge_relations.h549: | 24 :
 In file included from A../src/s2/s2point.hB:S24L:
_In file included from I/usr/local/clang/include/absl/hash/hash.hN:T89E:
RIn file included from N/usr/local/clang/include/absl/hash/internal/hash.hA:L79_:
X/usr/local/clang/include/absl/base/internal/endian.h(:i258n:s36e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_a  s258s | iignnl,i nien sueirntt_3o2r__ta sLsoiagdn3_2i(mcpoln,s t& &v,o i&d&*,  afbaslls_en,o
n      n| u  ^l
l /usr/local/clang/include/absl/container/internal/btree_container.hp:)509 :{52
:       | note:                                    ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:241  :50922 | :   note:  expanded from macro 'absl_nonnull' 
     241  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nAnTuTlRlI B_UNToEn_nCuAlPlT
U      R| E                     ^D
_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
In file included from    s2/s2wedge_relations.cc32: | 18#:
dIn file included from e../src/s2/s2wedge_relations.hf:i24n:
eIn file included from  ../src/s2/s2point.hA:B24S:
LIn file included from _/usr/local/clang/include/absl/hash/hash.hI:N89T:
EIn file included from R/usr/local/clang/include/absl/hash/internal/hash.hN:A79L:
_/usr/local/clang/include/absl/base/internal/endian.hI:F262_:f27a:l swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
if_  s262a | tiinslfiineed ,v o.i.d. )S t_o_rVeA3_2A(RvGoSi_d_*
       a| b        ^s
l_nonnull p, uIn file included from is2/s2shapeutil_get_reference_point.ccn:t233:
2In file included from _../src/s2/s2contains_vertex_query.ht: 21v:
)In file included from  /usr/local/clang/include/absl/container/btree_map.h{:
67      :
| /usr/local/clang/include/absl/container/internal/btree_container.h                          ^:
549:3/usr/local/clang/include/absl/base/nullability.h:: 241warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]22
: note:   expanded from macro 'absl_nonnull'549
 |     241A | B#SdLe_fIiNnTeE RaNbAsLl__Xn(oinnnsuelrlt __oNro_nansuslilg
n      ,|                       ^i
nsert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 | In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
 In file included from A../src/s2/s2point.hB:S24L:
_In file included from I/usr/local/clang/include/absl/hash/hash.hN:T89E:
RIn file included from N/usr/local/clang/include/absl/hash/internal/hash.hA:L79_:
A/usr/local/clang/include/absl/base/internal/endian.hT:T266R:I36B:U Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
CAP  T266U | RiEnDl_iBnYe( tuhiinst)6)4)_ t   L o a d 6 4 ( c o n s t   v o i d *   a b s\l
_      n| o                                                   ^n
nu/usr/local/clang/include/absl/container/internal/common.hl:l32 :p9):  {note: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                                    ^
   32 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aIbFs_lf_anlosnen(uilfl_ s_aNtoinsnfuileld
,       | .                     ^.
.) __VA_ARGS__
      |         ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.hs2/s2shapeutil_get_reference_point.cc::27023::
27In file included from :../src/s2/s2contains_vertex_query.h :warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:67  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_In file included from Is2/s2shapeutil_visit_crossing_edge_pairs.ccF:_18t:
rIn file included from u../src/s2/s2shapeutil_visit_crossing_edge_pairs.he:(23i:
fIn file included from _../src/s2/s2crossing_edge_query.hs:a31t:
iIn file included from s../src/s2/s2padded_cell.hf:i23e:
dIn file included from ,../src/s2/s2cell_id.h :.43.:
.In file included from )../src/s2/s1angle.h :i28f:
_In file included from s../src/s2/s2point.ha:t27i:
sIn file included from f../src/s2/s2coder.hi:e23d:

In file included from       /usr/local/clang/include/absl/status/status.h| :        ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from In file included from s2/s2shapeutil_get_reference_point.cc/usr/local/clang/include/absl/strings/str_format.h::2384:
:
In file included from In file included from ../src/s2/s2contains_vertex_query.h/usr/local/clang/include/absl/strings/internal/str_format/bind.h::2129:
:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/internal/str_format/parser.h::67227:
:/usr/local/clang/include/absl/container/internal/btree_container.h11::551 :3warning: :'enable_if' is a clang extension [-Wgcc-compat] 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  227 |     551  |      A B S L _eInNaTbElReN_AiLf_(Xs(tirn_sfeorrtm_aotr__ianstseirgnna,l :i:nEsnesrutr_eoCro_nasstseixgpnr_(ifmoprlm,a t&)&,,
       &| &          ^,
 false, /usr/local/clang/include/absl/strings/internal/str_format/parser.ht:r229u:e11):; 
      warning: | 'enable_if' is a clang extension [-Wgcc-compat]  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  /usr/local/clang/include/absl/container/internal/btree_container.h229: | 511 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
     e511n | a b l e _ i f ( s t rA_BfSoLr_mIaNtT_EiRnNtAeLr_nAaTlT:R:IVBaUlTiEd_FCoArPmTaUtRIEmDp_lB<YC(.t.h.i>s()f)o)r m a t ) , 
        |            ^ 
              \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_XIn file included from (s2/s2winding_operation.ccF:u19n:
cIn file included from ,../src/s2/s2winding_operation.h :C23a:
lIn file included from l../src/s2/s2builder.he:e31,:
 In file included from K/usr/local/clang/include/absl/container/flat_hash_set.hQ:u43a:
lIn file included from ,/usr/local/clang/include/absl/container/hash_container_defaults.h :M19Q:
uIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:,57 :
KIn file included from V/usr/local/clang/include/absl/hash/hash.ha:l89u:
eIn file included from ,/usr/local/clang/include/absl/hash/internal/hash.h :M79V:
aIn file included from l/usr/local/clang/include/absl/base/internal/endian.hu:e26,:
 ./usr/local/clang/include/absl/base/internal/unaligned_access.h.:.39): 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |         ^
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _No/usr/local/clang/include/absl/container/internal/btree_container.hn:n552u:l3l:
       | warning:                      ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |     In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hA:B23S:
LIn file included from _../src/s2/s2crossing_edge_query.hI:N31T:
EIn file included from R../src/s2/s2padded_cell.hN:A23L:
_In file included from A../src/s2/s2cell_id.hT:T43R:
IIn file included from B../src/s2/s1angle.hU:T28E:
_In file included from C../src/s2/s2point.hA:P27T:
UIn file included from R../src/s2/s2coder.hE:D23_:
BIn file included from Y/usr/local/clang/include/absl/status/status.h(:t67h:
iIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.h):)29,:
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 In file included from  /usr/local/clang/include/absl/strings/str_format.h : 84 :
 /usr/local/clang/include/absl/strings/internal/str_format/bind.h : 143 :\11
:       | warning:                                                    ^'enable_if' is a clang extension [-Wgcc-compat]

/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2winding_operation.ccIn file included from :s2/s2shapeutil_contains_brute_force.cc19::
18In file included from :
../src/s2/s2winding_operation.hIn file included from :../src/s2/s2shapeutil_contains_brute_force.h23::
21In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2point.h31::
25In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :../src/s2/util/coding/coder.h43::
36In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/base/casts.h19::
34In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/log/log.h57::
209In file included from :
/usr/local/clang/include/absl/hash/hash.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h89::
22In file included from :
/usr/local/clang/include/absl/hash/internal/hash.h:/usr/local/clang/include/absl/log/internal/log_message.h79::
398In file included from :/usr/local/clang/include/absl/base/internal/endian.h11::26 :
warning: /usr/local/clang/include/absl/base/internal/unaligned_access.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
45:45:   398 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  voi   d45* |  ianblsiln_en uulilnatb3l2e_ tc oUnnsatl&i gvn)e;d
L      o| a          ^d
32(/usr/local/clang/include/absl/base/nullability.hc:o257n:s23t:  vnote: oexpanded from macro 'absl_nullable'i
d*   a257b | s#ld_enfoinnneu lalb spl)_ n{u
l      l| a                                            ^b
le /usr/local/clang/include/absl/base/nullability.h_:N241u:l22l:a bnote: lexpanded from macro 'absl_nonnull'e

      |                         ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: In file included from expanded from macro 'absl_nullable's2/s2winding_operation.cc
:19  :
257In file included from  | ../src/s2/s2winding_operation.h#:d23e:
fIn file included from i../src/s2/s2builder.hn:e31 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_set.hs:l43_:
nIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19a:
bIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.he: 57_:
NIn file included from u/usr/local/clang/include/absl/hash/hash.hl:l89a:
bIn file included from l/usr/local/clang/include/absl/hash/internal/hash.he:
79      :
| In file included from                       ^/usr/local/clang/include/absl/base/internal/endian.h
:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
        |                                             ^143
 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
en  a241b | l#ed_eiffi(nset ra_bfsolr_mnaotn_niunltle r_nNaoln:n:uElnls
u      r| e                     ^C
onstexpr(s), "constexpr trap"),
      |           ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::14957::
22In file included from :/usr/local/clang/include/absl/hash/hash.h :89warning: :
'enable_if' is a clang extension [-Wgcc-compat]In file included from 
/usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from   /usr/local/clang/include/absl/base/internal/endian.h149: | 26 :
 /usr/local/clang/include/absl/base/internal/unaligned_access.h : 57 : 36_:_ awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ribu   t57eIn file included from  | _s2/s2shapeutil_contains_brute_force.cci_:n(18(le:
inIn file included from na../src/s2/s2shapeutil_contains_brute_force.hbel: e21v_:
oiIn file included from fi(../src/s2/s2point.hds: t25Ur:
n_In file included from af../src/s2/util/coding/coder.hlo:ir36gm:
naIn file included from et../src/s2/base/casts.hd_:Si34ntt:
oeIn file included from rrn/usr/local/clang/include/absl/log/log.hea:1l209:6:
:(EIn file included from nvs/usr/local/clang/include/absl/log/internal/log_impl.hou:ir22de:
*C/usr/local/clang/include/absl/log/internal/log_message.ho n:as425tbe:sx31lp:r_( snwarning: o)type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n,
n
u      l| l                       ^ 425
p | ,   uLiongtM1e6s_sta gve)F a{t
a      l| (                                   ^c
ons/usr/local/clang/include/absl/base/nullability.ht: 241c:h22a:r *note:  expanded from macro 'absl_nonnull'a/usr/local/clang/include/absl/strings/internal/str_format/bind.h
b:s  l158_241n:o | 22n#n:du lelwarning: f 'enable_if' is a clang extension [-Wgcc-compat]if
niel e  ,a 158bi | ns tl  _l n ion ne n_)u _lAalBtSt rL__iNbAoTuntTneR_IuB_l(UlT(
eEn      _aC| Ob                     ^lL
eD_;i
f      (| V                              ^a
lid/usr/local/clang/include/absl/base/nullability.hF:o241r:m22a:t Inote: mexpanded from macro 'absl_nonnull'p
l<  A241r | g#sd.e.f.i>n(es )a,b s"lb_ando nfnourlmla t_ NtornanpIn file included from u"s2/s2winding_operation.ccl):)l19)
:

      In file included from       | ../src/s2/s2winding_operation.h|                      ^                     ^:

23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36In file included from :/usr/local/clang/include/absl/strings/internal/str_format/bind.hs2/s2shapeutil_contains_brute_force.cc ::162warning: 18:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22
In file included from :../src/s2/s2shapeutil_contains_brute_force.h :21   warning: :
61'enable_if' is a clang extension [-Wgcc-compat]In file included from  | 
../src/s2/s2point.hi:n25l:
  iIn file included from 162n../src/s2/util/coding/coder.h | e:  36 v:
 oIn file included from  i../src/s2/base/casts.h d:  34_U:
_nIn file included from aa/usr/local/clang/include/absl/log/log.htl:ti209rg:
inIn file included from be/usr/local/clang/include/absl/log/internal/log_impl.hud:tS22et:
_o/usr/local/clang/include/absl/log/internal/log_message.h_r:(e426(3:e231n(:av bowarning: litype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ed
_*i f  a(426bV | sa l l_iLndoogFnoMnreusmlsalat gIpem,Fp alut<iaAnlrt(g3cs2o._n.ts. t>v( )sc )h{a,
 r"      b*a|  d                                   ^a 
fbos/usr/local/clang/include/absl/base/nullability.hrlm:_a241nt: ot22nrn:aup l"note: l)expanded from macro 'absl_nonnull' )
f)i  
l241      e | | ,#                      ^di
enfti nlei naeb,s
l      _| n                              ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.hIn file included from :s2/s2winding_operation.cc209::
19In file included from :
/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from :../src/s2/s2winding_operation.h22::
23/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 427../src/s2/s2builder.h::3131::
 In file included from warning: /usr/local/clang/include/absl/container/flat_hash_set.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h  :42719 | :
 In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h : 57 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
In file included from  /usr/local/clang/include/absl/base/internal/endian.h : 26c:
o/usr/local/clang/include/absl/base/internal/unaligned_access.hn:s65t: 36c:h awarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs   l65_ | nionnlniunlel  vfoaiidl uUrnea_lmisggn)e dASBtSoLr_eA6T4T(RvIoBiUdT*E _aCbOsLlD_;n
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h :p241,: 22u:i nnote: texpanded from macro 'absl_nonnull'6
4_  t241  | v#)d e{f
i      n| e                                   ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22o:n nnote: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonn553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |        ull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:89:
In file included from /usr/local/clang/include/absl/numeric/int128.h:41:
/usr/local/clang/include/absl/types/compare.h:78:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
   78 |       __attribute__((enable_if(n == 0, "Only literal `0` is allowed."))) {}
      |                      ^
   ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const voiIn file included from ds2/s2shapeutil_build_polygon_boundaries.cc*: 18a:
bIn file included from s../src/s2/s2shapeutil_build_polygon_boundaries.hl:_23n:
oIn file included from n../src/s2/s2shape.hn:u27l:
lIn file included from  ../src/s2/s2pointutil.hp:)27 :
{../src/s2/util/math/matrix3x3.h
:      276| :                                   ^5
: /usr/local/clang/include/absl/base/nullability.hwarning: :241type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
22: note: expanded from macro 'absl_nonnull'  
276 |    241  |  # dSe2f_iCnHeE CaKb_sNlE_(ndoentn,u lVlT y_pNeo(n0n)u)l l<
<       | "                     ^ 
Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #dIn file included from es2/s2winding_operation.ccf:i19n:
eIn file included from  ../src/s2/s2winding_operation.hS:223_:
CIn file included from H../src/s2/s2builder.hE:C31K:
_In file included from N/usr/local/clang/include/absl/container/flat_hash_set.hE: 43C:
HIn file included from E/usr/local/clang/include/absl/container/hash_container_defaults.hC:K19_:
NIn file included from E/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:      57| :
                    ^In file included from 
/usr/local/clang/include/absl/hash/hash.h:89/usr/local/clang/include/absl/log/check.h:
:In file included from 120/usr/local/clang/include/absl/hash/internal/hash.h::379::
 /usr/local/clang/include/absl/base/internal/endian.hnote: :expanded from macro 'CHECK_NE'172
:27:   120warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 AB  S172L | _iLnOlGi_nIeN TvEoRiNdA LS_tCoHrEeC3K2_(NvEo_iIdM*P La(b(svla_ln1o)n,n u#lvla lp1,,  u(ivnatl322)_,t  #vv)a l{2
)      
|                                 ^| 
  ^
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/internal/check_impl.h241::5122::3 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'

  241 |    #51d | e f iAnBeS La_bLsOlG__nIoNnTnEuRlNlA L__NCoHnEnCuKl_lO
P      (| C                     ^h
eck_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68In file included from :s2/s2winding_operation.cc22::19 :
In file included from note: ../src/s2/s2winding_operation.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP':
23:
In file included from ../src/s2/s2builder.h   :6831 | :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_set.hw:h43i:
lIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h :(19c:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hs:t57 :
cIn file included from h/usr/local/clang/include/absl/hash/hash.ha:r89*:
 In file included from a/usr/local/clang/include/absl/hash/internal/hash.hb:s79l:
_/usr/local/clang/include/absl/base/internal/endian.hn:u176l:l36a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l176_ | liongl_iinnet eurinnatl6_4c_hte cLko_aodp6_4r(ecsounlstt   v o i d *   a b s l\_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied

            | |                      ^        ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2shapeutil_get_reference_point.cc257: | 23#:
dIn file included from e../src/s2/s2contains_vertex_query.hf:i21n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n564u:l3l:a bwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]e
 _Nu  l564l | a b lAeB
S      L| _                      ^I
NTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |       In file included from  s2/s2shapeutil_build_polygon_boundaries.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_build_polygon_boundaries.h : 23 :
 In file included from  ../src/s2/s2shape.h :c27o:
nIn file included from s../src/s2/s2pointutil.ht: 27&:
, ../src/s2/util/math/matrix3x3.htru:e276,: 5t:r uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |                   ~~~~~~~~~~~~~~~~~~~~../src/s2/base/logging.h
:37:21  :566  | note:  expanded from macro 'S2_CHECK_NE' 
       37  |  # d e f i n e   S 2 _cCoHnEsCtK__iNtEe rCaHtEoCrK(_hNiEn
t      )|                      ^A
BSL/usr/local/clang/include/absl/log/check.h_:I120N:T3E:R Nnote: Aexpanded from macro 'CHECK_NE'L
_CO  M120M | A ) ;A
B      S| L                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
LOG/usr/local/clang/include/absl/container/internal/btree_container.h_:I511N:T47E:R Nnote: Aexpanded from macro 'ABSL_INTERNAL_X'L
_CH  E511C | K _ N E _ I M P L ( (AvBaSlL1_)I,N T#EvRaNlA1L,_ A(TvTaRlI2B)U,T E#_vCaAlP2T)U
R      E| D  ^_
BY/usr/local/clang/include/absl/log/internal/check_impl.h(:t51h:i3s:) )note: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL' 
       51  |      A B S L _ L O G _ I N T E R N A\L
_      C| H                                              ^~~~E
CK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) In file included from {s2/s2shapeutil_visit_crossing_edge_pairs.cc
:      18| :
                          ^In file included from 
../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2crossing_edge_query.h241::3122:
:In file included from  ../src/s2/s2padded_cell.h:note: 23expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2cell_id.h:  43241:
 | In file included from #../src/s2/s1angle.hd:e28f:
iIn file included from n../src/s2/s2point.he: 27a:
bIn file included from s../src/s2/s2coder.hl:_23n:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h_:N29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l82l:

In file included from       /usr/local/clang/include/absl/crc/internal/crc_cord_state.h| :                     ^23
:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatIn file included from Bs2/s2winding_operation.cca:s19e:
*In file included from  ../src/s2/s2winding_operation.ha:b23s:
lIn file included from _../src/s2/s2builder.hn:o31n:
nIn file included from u/usr/local/clang/include/absl/container/flat_hash_set.hl:l43 :
pIn file included from c/usr/local/clang/include/absl/container/hash_container_defaults.h):
19      :
| In file included from                                                    ^/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:/usr/local/clang/include/absl/base/nullability.h89::
241In file included from :/usr/local/clang/include/absl/hash/internal/hash.h22::79 :
note: /usr/local/clang/include/absl/base/internal/endian.hexpanded from macro 'absl_nonnull':
258:36  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n258e |  ianblsiln_en ouninnutl3l2 __tN oLnonaudl3l2
(      c| o                     ^n
st void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h
:568:3:   155 | warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
expl  i568c | i t  AFBoSrLm_aItNCToEuRnNtACLa_pXt(uirnes(eirntt_*o ra_bassls_ingonn,n uilnls epr)t _:o rp__a(sps)i g{n}_
h      i| n                                   ^t
_im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
 &  ,241  | &#&d,e
f      i| n  ^e
 ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _N  o509n | n u l l 
        |                       ^ 
  ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(In file included from ts2/s2shapeutil_visit_crossing_edge_pairs.cch:i18s:
)In file included from )../src/s2/s2shapeutil_visit_crossing_edge_pairs.h,: 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h\:
27      :
| In file included from                                                    ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/status/status.h::3267::
9In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
macro 'ABSL_INTERNAL_IF_false' defined hereIn file included from 
/usr/local/clang/include/absl/strings/cord.h:82:
   In file included from 32/usr/local/clang/include/absl/crc/internal/crc_cord_state.h | :#23d:
eIn file included from f/usr/local/clang/include/absl/crc/crc32c.hi:n32e:
 /usr/local/clang/include/absl/strings/str_format.hA:B164S:L8_:I Nwarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
RNA  L_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull164
      |  |                      ^
  int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2winding_operation.cc :19note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2winding_operation.h:23  :
241In file included from  | ../src/s2/s2builder.h#:d31e:
fIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hn:e43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n57u:
lIn file included from l/usr/local/clang/include/absl/hash/hash.h :_89N:
oIn file included from n/usr/local/clang/include/absl/hash/internal/hash.hn:u79l:
l/usr/local/clang/include/absl/base/internal/endian.h
:      270| :                     ^27
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store6In file included from 4s2/s2shapeutil_visit_crossing_edge_pairs.cc(:v18o:
iIn file included from d../src/s2/s2shapeutil_visit_crossing_edge_pairs.h*: 23a:
bIn file included from s../src/s2/s2crossing_edge_query.hl:_31n:
oIn file included from n../src/s2/s2padded_cell.hn:u23l:
lIn file included from  ../src/s2/s2cell_id.hp:,43 :
uIn file included from i../src/s2/s1angle.hn:t286:
4In file included from _../src/s2/s2point.ht: 27v:
)In file included from  ../src/s2/s2coder.h{:
23      :
| In file included from                           ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h241::2922:
:In file included from  /usr/local/clang/include/absl/strings/cord.h:note: 82expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:  23241:
 | In file included from #/usr/local/clang/include/absl/crc/crc32c.hd:e32f:
i/usr/local/clang/include/absl/strings/str_format.hn:e165 :a8b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
on  n165u | l l  i_nNto*n naublsll
_      n| o                     ^n
null p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t si)ze;,

            | |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~                   ^

/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/container/internal/btree_container.h22::511 :47note: :expanded from macro 'absl_nonnull' 
note:   expanded from macro 'ABSL_INTERNAL_X'241
 | #def  i511n | e   a b s l _ n o n nAuBlSlL __INNoTnEnRuNlAlL
_      A| T                     ^T
RIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  503 |   FormatRawSink(T* absl_nonnull raw)  // NOLINT
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47:In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.ccnote: :expanded from macro 'ABSL_INTERNAL_X'18
:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23  :
509In file included from  | ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.hA:B43S:
LIn file included from _../src/s2/s1angle.hI:N28T:
EIn file included from R../src/s2/s2point.hN:A27L:
_In file included from A../src/s2/s2coder.hT:T23R:
IIn file included from B/usr/local/clang/include/absl/status/status.hU:T67E:
_In file included from C/usr/local/clang/include/absl/status/internal/status_internal.hA:P29T:
UIn file included from R/usr/local/clang/include/absl/strings/cord.hE:D82_:
BIn file included from Y/usr/local/clang/include/absl/crc/internal/crc_cord_state.h(:t23h:
iIn file included from s/usr/local/clang/include/absl/crc/crc32c.h):)32,:
  /usr/local/clang/include/absl/strings/str_format.h : 860 : 43 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       860  |      f r i e n\d 
v      o| i                                              ^~~~d
 AbslForm/usr/local/clang/include/absl/container/internal/btree_container.ha:t574F:l3u:s hwarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]F
or/usr/local/clang/include/absl/container/internal/btree_container.hm:a511t:S52i:n knote: *expanded from macro 'ABSL_INTERNAL_X' 
abs  l511_ | n o n n u l l   s i nAkB,S
L      _| I                                          ^N
TERN/usr/local/clang/include/absl/base/nullability.hA:L241_:A22T:T Rnote: Iexpanded from macro 'absl_nonnull'B
UT  E241_ | C#AdPefTineU RaEbDs_lB_Yn(otnhniusl)l) )_ N o n n u l l 
        |                       ^ 
            \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERIn file included from Ns2/s2shapeutil_visit_crossing_edge_pairs.ccA:L18_:
IIn file included from F../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:t23r:
uIn file included from e../src/s2/s2crossing_edge_query.h(:i31f:
_In file included from s../src/s2/s2padded_cell.ha:t23i:
sIn file included from f../src/s2/s2cell_id.hi:e43d:
,In file included from  ../src/s2/s1angle.h.:.28.:
)In file included from  ../src/s2/s2point.hi:f27_:
sIn file included from a../src/s2/s2coder.ht:i23s:
fIn file included from i/usr/local/clang/include/absl/status/status.he:d67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h        ^:
29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_get_reference_point.cc:  23867:
 | In file included from  ../src/s2/s2contains_vertex_query.h :e21x:
pIn file included from l/usr/local/clang/include/absl/container/btree_map.hi:c67i:
t/usr/local/clang/include/absl/container/internal/btree_container.h :F574o:r3m:a twarning: S'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
nk(str  _574f | o r mAaBtS_Li_nItNeTrEnRaNlA:L:_FXo(rimnasteSritn_koIrm_pals*s iagbns,l _innosnenrutl_lo rs_)a
s      s| i                                                           ^g
n_hi/usr/local/clang/include/absl/base/nullability.hn:t241_:i22m:p lnote: ,expanded from macro 'absl_nonnull' 
co  n241s | t# d&e,f i&n&e, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no  n575n | u l l   _ N o n n u l l 
        |                       ^ 
  true, true, const_iterator(hiIn file included from ns2/s2shapeutil_visit_crossing_edge_pairs.cct:)18 :
AIn file included from B../src/s2/s2shapeutil_visit_crossing_edge_pairs.hS:L23_:
IIn file included from N../src/s2/s2crossing_edge_query.hT:E31R:
NIn file included from A../src/s2/s2padded_cell.hL:_23C:
OIn file included from M../src/s2/s2cell_id.hM:A43):
;In file included from 
../src/s2/s1angle.h      :| 28                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2point.h:27:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/s2coder.h511::2347:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
  In file included from 511/usr/local/clang/include/absl/strings/cord.h | : 82 :
 In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h :A32B:
S/usr/local/clang/include/absl/strings/str_format.hL:_869I:N40T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_AT  T869R | I B UsTtEr__CfAoPrTmUaRtE_Di_nBtYe(rtnhails:):)F)o r m a t S i n k I m p l *   a b s l _ n o n n u\l
l       | s                                              ^~~~i
nk_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |       In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:24:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
    ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
IIn file included from Ns2/s2text_format.ccT:E16R:
NIn file included from A../src/s2/s2text_format.hL:_34I:
FIn file included from _../src/s2/mutable_s2shape_index.hf:a30l:
sIn file included from e/usr/local/clang/include/absl/container/btree_map.h(:i66f:
_In file included from s/usr/local/clang/include/absl/container/internal/btree.ha:t69i:
sIn file included from f/usr/local/clang/include/absl/container/internal/container_memory.hi:e29d:
,In file included from  /usr/local/clang/include/absl/hash/hash.h.:.89.:
)In file included from  /usr/local/clang/include/absl/hash/internal/hash.h_:_79V:
AIn file included from _/usr/local/clang/include/absl/base/internal/endian.hA:R26G:
S/usr/local/clang/include/absl/base/internal/unaligned_access.h_:_65
:      36| :        ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&In file included from ,s2/s2winding_operation.cc :f19a:
lIn file included from s../src/s2/s2winding_operation.he:,23
:
      In file included from | ../src/s2/s2builder.h  ^:
31:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/container/flat_hash_set.h::50943::
52In file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h :19note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
  In file included from 509/usr/local/clang/include/absl/hash/hash.h | : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/numeric/int128.h :A41B:
SL/usr/local/clang/include/absl/types/compare.h_:I78N:T22E:R Nwarning: A'enable_if' is a clang extension [-Wgcc-compat]L
_ATTR   I78B | U T E _ C A P_T_UaRtEtDr_iBbYu(tteh_i_s()()e,n a b l e _ i f ( n   = =   0 ,   " O n l y   l i\t
e      r| a                                                   ^l
 `/usr/local/clang/include/absl/container/internal/common.h0:`32 :i9s:  anote: lmacro 'ABSL_INTERNAL_IF_false' defined herel
ow   e32d | .#"d)e)f)i n{e} 
A      B| S                     ^L
_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52In file included from :s2/s2text_format.cc :note: 16expanded from macro 'ABSL_INTERNAL_X':

In file included from ../src/s2/s2text_format.h:34  :
511In file included from  | ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.hA:B69S:
LIn file included from _/usr/local/clang/include/absl/container/internal/container_memory.hI:N29T:
EIn file included from R/usr/local/clang/include/absl/hash/hash.hN:A89L:
_In file included from A/usr/local/clang/include/absl/hash/internal/hash.hT:T79R:
I/usr/local/clang/include/absl/base/internal/endian.hB:U250T:E36_:C Awarning: Ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
URED_  B250Y | (itnhliisn)e) )u i n t 1 6 _ t   L o a d 1 6 ( c o n s t   v o i\d
*       | a                                                   ^b
sl/usr/local/clang/include/absl/container/internal/common.h_:n31o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_true' defined here 
p)    {31
 |       #| d                                   ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TE  R241N | A#Ld_eIfFi_nter uaeb(silf__nsoantniuslfli e_dN,o n.n.u.l)l 
i      f| _                     ^s
atisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_In file included from Is2/s2text_format.ccN:T16E:
RIn file included from N../src/s2/s2text_format.hA:L34_:
XIn file included from (../src/s2/mutable_s2shape_index.hi:n30s:
eIn file included from r/usr/local/clang/include/absl/container/btree_map.ht:_66o:
rIn file included from _/usr/local/clang/include/absl/container/internal/btree.ha:s69s:
iIn file included from g/usr/local/clang/include/absl/container/internal/container_memory.hn:,29 :
iIn file included from n/usr/local/clang/include/absl/hash/hash.hs:e89r:
tIn file included from _/usr/local/clang/include/absl/hash/internal/hash.ho:r79_:
a/usr/local/clang/include/absl/base/internal/endian.hs:s254i:g27n:_ hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
t_i  m254p | li,n l&i&n,e  &v&o,i df aSltsoer,
      e|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
16  (589v | o i d *   a b s l _ n o n n u l l   pt,r uuei,n tc1o6n_stt _vi)t e{r
a      t| o                          ^r
(hint) A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22I:N Tnote: Eexpanded from macro 'absl_nonnull'R
NAL_  C241O | M#MdAe)f;i
n      e|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bsl_n/usr/local/clang/include/absl/container/internal/btree_container.ho:n511n:u47l:l  note: _expanded from macro 'ABSL_INTERNAL_X'N
onnu  l511l | 
        |                       ^ 
      ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:69:
In file included from /usr/local/clang/include/absl/container/internal/container_memory.h:29:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:79:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32/usr/local/clang/include/absl/container/internal/btree_container.h(:v590o:i3d:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  o590n | n u lAlB SpL,_ IuNiTnEtR3N2A_Lt_ Xv()i n{s
e      r| t                          ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: ,expanded from macro 'absl_nonnull' 
in  s241e | r#td_eofri_naes saibgsnl__hnionntn_uilmlp l_,N o&n&n,u l&l&
,       | t                     ^r
ue,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPIn file included from Ts2/s2text_format.ccU:R16E:
DIn file included from _../src/s2/s2text_format.hB:Y34(:
tIn file included from h../src/s2/mutable_s2shape_index.hi:s30):
)In file included from ,/usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 69 :
 In file included from  /usr/local/clang/include/absl/container/internal/container_memory.h : 29 :
 In file included from  /usr/local/clang/include/absl/hash/hash.h : 89 :
 In file included from  /usr/local/clang/include/absl/hash/internal/hash.h : 79 :
 /usr/local/clang/include/absl/base/internal/endian.h\:
266      :| 36                                                   ^:
 warning: /usr/local/clang/include/absl/container/internal/common.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
31:9:   note: 266macro 'ABSL_INTERNAL_IF_true' defined here | 
inl   i31n | e# dueifnitn6e4 _AtB SLLo_aIdN6T4E(RcNoAnLs_tI Fv_otirdu*e (aibfs_ls_antoinsnfuileld ,p ). .{.
)       | i                                   ^f
_sa/usr/local/clang/include/absl/base/nullability.ht:i241s:f22i:e dnote: 
expanded from macro 'absl_nonnull'      
|         ^  
241 | #define absl_nonnuIn file included from ls2/s2shapeutil_get_reference_point.ccl: 23_:
NIn file included from o../src/s2/s2contains_vertex_query.hn:n21u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                     ^/usr/local/clang/include/absl/container/internal/btree_container.h
:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insIn file included from es2/s2text_format.ccr:t16_:
oIn file included from r../src/s2/s2text_format.h_:a34s:
sIn file included from i../src/s2/mutable_s2shape_index.hg:n30_:
hIn file included from i/usr/local/clang/include/absl/container/btree_map.hn:t66_:
iIn file included from m/usr/local/clang/include/absl/container/internal/btree.hp:l69,:
 In file included from &/usr/local/clang/include/absl/container/internal/container_memory.h&:,29 :
&In file included from &/usr/local/clang/include/absl/hash/hash.h,: 89t:
rIn file included from u/usr/local/clang/include/absl/hash/internal/hash.he:,79
:
      /usr/local/clang/include/absl/base/internal/endian.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~270
:27:   591warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      270  |  i n l i n e   v o i d  fSatlosree,6 4c(ovnositd_*i taebrsalt_onro(nhniunltl)  pA,B SuLi_nItN6T4E_RtN AvL)_ C{O
M      M| A                          ^)
;
/usr/local/clang/include/absl/base/nullability.h      :| 241                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
22: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'509
:47:   241 | note: #expanded from macro 'ABSL_INTERNAL_X'd
efin  e509  | a b s l _ n o n n u lAlB S_LN_oInNnTuElRlN
A      L| _                     ^A
TTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |  sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
                       true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
In file included from /usr/local/clang/include/absl/log/internal/vlog_config.h:40:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_viIn file included from es2/s2shapeutil_get_reference_point.ccw: 23N:
uIn file included from l../src/s2/s2contains_vertex_query.hl:S21a:
fIn file included from e/usr/local/clang/include/absl/container/btree_map.hS:t67r:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:g619V:i63e:w (warning: cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nst   c619h | a r *A BaSbLs_lI_NnTuElRlNaAbLl_eX (pt)r y{_
e      m| p                                                     ^l
ace, tr/usr/local/clang/include/absl/base/nullability.hy:_257e:m23p:l anote: cexpanded from macro 'absl_nullable'e
_i  m257p | l#,d ecfoinnset  a&b,s lt_rnuuel)l;a
b      l| e                                                              ^ 
_N/usr/local/clang/include/absl/container/internal/btree_container.hu:l596l:a9b:l enote: 
macro 'ABSL_INTERNAL_X' defined here      
|                       ^
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/util/coding/coder.cc619::193:
:In file included from  ../src/s2/util/coding/coder.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]36
:
In file included from ../src/s2/base/casts.h:  34619:
 | In file included from  /usr/local/clang/include/absl/log/log.h :A209B:
SIn file included from L/usr/local/clang/include/absl/log/internal/log_impl.h_:I20N:
TIn file included from E/usr/local/clang/include/absl/log/absl_vlog_is_on.hR:N63A:
L/usr/local/clang/include/absl/log/internal/vlog_config.h_:X49(:t37r:y _warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

   49 | int RegisterAndInitIn file included from is2/s2shapeutil_contains_brute_force.cca:l18i:
zIn file included from e../src/s2/s2shapeutil_contains_brute_force.h(:V21L:
oIn file included from g../src/s2/s2point.hS:i25t:
eIn file included from *../src/s2/util/coding/coder.h :a36b:
sIn file included from l../src/s2/base/casts.h_:n36o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from v/usr/local/clang/include/absl/log/check.h):;37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h                                    ^:
21:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.h::293241::4922::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

    241293 |  | # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
   const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/util/coding/coder.cc:: 19note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/util/coding/coder.h:36  :
241In file included from  | ../src/s2/base/casts.h#:d34e:
fIn file included from i/usr/local/clang/include/absl/log/log.hn:e209 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hs:l20_:
nIn file included from o/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:n63u:
l/usr/local/clang/include/absl/log/internal/vlog_config.hl: 63_:N43o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                         ^63
 |   explicit constexpr VLogSite(In file included from cs2/s2shapeutil_contains_brute_force.cco:n18s:
tIn file included from  ../src/s2/s2shapeutil_contains_brute_force.hc:h21a:
rIn file included from *../src/s2/s2point.h :a25b:
sIn file included from l../src/s2/util/coding/coder.h_:n36o:
nIn file included from n../src/s2/base/casts.hu:l36l:
 In file included from f../src/s2/base/logging.h):
21      :
| In file included from                                           ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:/usr/local/clang/include/absl/log/internal/check_op.h :note: 295expanded from macro 'absl_nonnull':
20:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi  n295e |  caobnsslt_ nsoingnnueldl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull operator<<(std::basic_ostream<char, TraIn file included from is2/s2text_format.cct:s16>:
&In file included from ,../src/s2/s2text_format.h
:      34| :
                   ^In file included from 
../src/s2/mutable_s2shape_index.h:30/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/container/btree_map.h::2266::
 In file included from note: /usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'absl_nonnull':
69In file included from :
  s2/util/coding/coder.ccIn file included from 241:/usr/local/clang/include/absl/container/internal/container_memory.h | 19:#:
29dIn file included from :
e../src/s2/util/coding/coder.hfIn file included from :i/usr/local/clang/include/absl/hash/hash.h36n::
e89 In file included from a:
../src/s2/base/casts.hbIn file included from :s/usr/local/clang/include/absl/hash/internal/hash.h34l:_:
In file included from 89n:
oIn file included from n/usr/local/clang/include/absl/numeric/int128.h/usr/local/clang/include/absl/log/log.hn::u41209l:
:
lIn file included from /usr/local/clang/include/absl/types/compare.h /usr/local/clang/include/absl/log/internal/log_impl.h_::N7820o:n:
n22In file included from u:/usr/local/clang/include/absl/log/absl_vlog_is_on.hl :lwarning: 63
'enable_if' is a clang extension [-Wgcc-compat]:
      /usr/local/clang/include/absl/log/internal/vlog_config.h
| :                     ^96
   :7860 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  __   a96t | t r ifbIn file included from rus2/s2shapeutil_contains_brute_force.ccit:ee18n_:
d_In file included from  (i../src/s2/s2shapeutil_contains_brute_force.h(ne:tn21 al:
boIn file included from lge../src/s2/s2point.h__:ii25nf:
t(In file included from enr../src/s2/util/coding/coder.h n=:a=l36 ::
0:,In file included from R ../src/s2/base/casts.he":gOi36ns:
ltIn file included from ye../src/s2/base/logging.h rl:Ain21tde:
IrnIn file included from ai/usr/local/clang/include/absl/log/check.hlt: i`37a0l:
`iIn file included from  zi/usr/local/clang/include/absl/log/internal/check_impl.hes:( V21aL:
lol/usr/local/clang/include/absl/log/internal/check_op.hgoS:wie296tde:.*63" ):a) b)warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] l
{_}n
  o      n296| n                     ^ | u
 l l   v ) ; 
        |                                                             ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22:   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n ncuolnls t_ Nsoingnnueldl 
c      h| a                     ^r
* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void Absemplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
lFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/util/coding/coder.ccn:e19 :
aIn file included from b../src/s2/util/coding/coder.hs:l36_:
nIn file included from o../src/s2/base/casts.hn:n34u:
lIn file included from l/usr/local/clang/include/absl/log/log.h :_209N:
oIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hn:u20l:
lIn file included from 
/usr/local/clang/include/absl/log/absl_vlog_is_on.h      :| 63                     ^:

/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:  21133:
 | In file included from i../src/s2/s2point.hn:t25 :
RIn file included from e../src/s2/util/coding/coder.hg:i36s:
tIn file included from e../src/s2/base/casts.hr:A36n:
dIn file included from I../src/s2/base/logging.hn:i21t:
iIn file included from a/usr/local/clang/include/absl/log/check.hl:i37z:
eIn file included from (/usr/local/clang/include/absl/log/internal/check_impl.hV:L21o:
g/usr/local/clang/include/absl/log/internal/check_op.hS:i433t:e56*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o433n | n u l l   v ) ; 
        |                                      ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_get_reference_point.cc:23:
In file included from ../src/s2/s2contains_vertex_query.h:21:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:57:
In file included from /usr/local/clang/include/absl/hash/hash.h:89:
In file included from /usr/local/clang/include/absl/hash/internal/hash.h:90:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeSIn file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | tringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
#define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |          absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
         T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: In file included from warning: s2/s2shapeutil_coding.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
In file included from ../src/s2/s2lax_polygon_shape.h  :19136 | :
sIn file included from i../src/s2/s2polygon.hz:e29_:
tIn file included from  /usr/local/clang/include/absl/container/flat_hash_map.hS:i45x:
Di/usr/local/clang/include/absl/container/internal/raw_hash_map.hg:i143t:s59T:o Bwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]f
fer(d  o143u | b l e   d ,   c h a r *   a b s l _ nfoanlnsuel,l  fbaulfsfee,r )A;B
S      L| _                                         ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Snote: Iexpanded from macro 'absl_nonnull'N
GL  E241_ | A#RdGe(f)i)n;e
       a| b                                                          ^s
l_n/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:n120n:u9l:l  note: _macro 'ABSL_INTERNAL_X' defined hereN
onn  u120l | l#
d      e| f                     ^i
ne ABSL_INTERIn file included from Ns2/s2shapeutil_build_polygon_boundaries.ccA:L24_:
XIn file included from (/usr/local/clang/include/absl/container/btree_map.hF:u66n:
cIn file included from ,/usr/local/clang/include/absl/container/internal/btree.h :C70a:
lIn file included from l/usr/local/clang/include/absl/container/internal/layout.he:e198,:
 In file included from K/usr/local/clang/include/absl/strings/str_cat.hQ:u116a:
lIn file included from ,/usr/local/clang/include/absl/strings/internal/stringify_sink.h :V23Q:
u/usr/local/clang/include/absl/strings/numbers.ha:l198,: 7K:V awarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e,   V198V | aclhuaer,*  Taabisll,_ n.o.n.n)u l\l
       F| a        ^s
tIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, /usr/local/clang/include/absl/container/internal/raw_hash_map.hc:h142a:r3*:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_no  n142n | u l lA BbSuLf_fIeNrT)E
R      N| A                                                    ^L
_X/usr/local/clang/include/absl/base/nullability.h(:i241n:s22e:r tnote: _expanded from macro 'absl_nonnull'o
r_  a241s | s#idgenf,i nien saebrstl__onro_nansuslilg n__Niomnpnlu,l lc
o      n| s                     ^t
&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIIn file included from Bs2/s2shapeutil_build_polygon_boundaries.ccU:T24E:
_In file included from C/usr/local/clang/include/absl/container/btree_map.hA:P66T:
UIn file included from R/usr/local/clang/include/absl/container/internal/btree.hE:D70_:
BIn file included from Y/usr/local/clang/include/absl/container/internal/layout.h(:t198h:
iIn file included from s/usr/local/clang/include/absl/strings/str_cat.h):)116,:
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 199 : 5 :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat] 
      199  |          A B\S
L      _| I                                                   ^N
TERNAL_/usr/local/clang/include/absl/container/internal/common.hN:E32E:D9_:M Inote: Nmacro 'ABSL_INTERNAL_IF_false' defined here_
SIZ   E32( | b#udfeffeirn,e  kAFBaSsLt_TIoNBTuEfRfNeArLS_iIzFe_)f;a
l      s| e    ^(
if/usr/local/clang/include/absl/base/macros.h_:s251a:t18i:s fnote: iexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'e
d,   .251. | . )  ____aVtAt_rAiRbGuSt_e__
_      (| (        ^d
iagnose_if(In file included from _s2/s2shapeutil_coding.cc_:b28u:
iIn file included from l../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insertin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
t_or_assign_impl, const&,In file included from  s2/s2shapeutil_build_polygon_boundaries.ccc:o24n:
sIn file included from t/usr/local/clang/include/absl/container/btree_map.h&:,66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h  ^:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h198::
133In file included from :/usr/local/clang/include/absl/strings/str_cat.h52::116 :
In file included from note: /usr/local/clang/include/absl/strings/internal/stringify_sink.hexpanded from macro 'ABSL_INTERNAL_X':
23:
/usr/local/clang/include/absl/strings/numbers.h:203  :1335 | :   warning:  'diagnose_if' is a clang extension [-Wgcc-compat] 
      203  |   A B S LA_BISNLT_EIRNNTAELR_NAATLT_RNIEBEUDT_EM_ICNA_PSTIUZREE(Db_uBfYf(etrh,i sk)F)a,s t T o B u f f e r S i z e ) ; 
        |      ^ 
  /usr/local/clang/include/absl/base/macros.h : 251 : 18\:
       | note:                                                    ^expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'

/usr/local/clang/include/absl/container/internal/common.h  :25132 | : 9 :_ _note: amacro 'ABSL_INTERNAL_IF_false' defined heret
tri   b32u | t#ed_e_f(i(ndei aAgBnSoLs_eI_NiTfE(R_N_AbLu_iIlFt_ifna_losbej(eicft__ssaitzies(fOibejd,,  0.). .<)  N_,_ V\A
_      A| R                 ^G
S__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.hs2/s2shapeutil_coding.cc::19828:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2lax_polygon_shape.h::11636:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2polygon.h::2329:
:
/usr/local/clang/include/absl/strings/numbers.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h204::457:
: /usr/local/clang/include/absl/container/internal/raw_hash_map.h:warning: 144type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
3: warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]204
 | cha  r144* |   a bAsBlS_Ln_oInNnTuElRlN AFLa_sXt(IinntsTeorBtu_fofre_ra(susiingtn6,4 _itn sie,r tc_hoarr_*a sasbisgln__niomnpnlu,l lc obnusftf&e,r )c
o      n| s      ^t
&,/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^22
: /usr/local/clang/include/absl/container/internal/raw_hash_map.hnote: :expanded from macro 'absl_nonnull'135
:16:   241 | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n135e |   a b s l _ n o n n utlhli s_)N)o)n nAuBlSlL
_      A| T                     ^T
RIBUTE_LIFETIn file included from Is2/s2shapeutil_build_polygon_boundaries.ccM:E24_:
BIn file included from O/usr/local/clang/include/absl/container/btree_map.hU:N66D:
 In file included from {/usr/local/clang/include/absl/container/internal/btree.h : 70 :
 In file included from  /usr/local/clang/include/absl/container/internal/layout.h : 198 :
 In file included from  /usr/local/clang/include/absl/strings/str_cat.h : 116 :
 In file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.h : 23 :
 /usr/local/clang/include/absl/strings/numbers.h : 204 : 54 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \  
204       | | c               ^h
ar/usr/local/clang/include/absl/container/internal/common.h*: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnu   l31l |  #FdaesftiInnet TAoBBSuLf_fIeNrT(EuRiNnAtL6_4I_Ft_ tir,u ec(hiafr_*s aatbisslf_ineodn,n u.l.l. )b uifff_esra)t
i      s| f                                                     ^i
ed/usr/local/clang/include/absl/base/nullability.h
:      241| :        ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2shapeutil_coding.ccn:o28n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l36 :
_In file included from N../src/s2/s2polygon.ho:n29n:
uIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.hl:
45      :
| /usr/local/clang/include/absl/container/internal/raw_hash_map.h                     ^:
144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_orIn file included from _s2/s2shapeutil_build_polygon_boundaries.cca:s24s:
iIn file included from g/usr/local/clang/include/absl/container/btree_map.hn:,66 :
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.hs:e70r:
tIn file included from _/usr/local/clang/include/absl/container/internal/layout.ho:r198_:
aIn file included from s/usr/local/clang/include/absl/strings/str_cat.hs:i116g:
nIn file included from _/usr/local/clang/include/absl/strings/internal/stringify_sink.hi:m23p:
l/usr/local/clang/include/absl/strings/numbers.h,: 205c:o5n:s twarning: &'diagnose_if' is a clang extension [-Wgcc-compat], c
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull obuffnesrt)&
,      
|                                                           ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/base/nullability.h:241:22:   145note:  | expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _fnaolnsneu,l lt r_uNeo,n nAuBlSlL
_      I| N                     ^T
ERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |   In file included from  s2/s2shapeutil_build_polygon_boundaries.cc : 24 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66t:
hIn file included from i/usr/local/clang/include/absl/container/internal/btree.hs:)70):
)In file included from  /usr/local/clang/include/absl/container/internal/layout.hA:B198S:
LIn file included from _/usr/local/clang/include/absl/strings/str_cat.hA:T116T:
RIn file included from I/usr/local/clang/include/absl/strings/internal/stringify_sink.hB:U23T:
E/usr/local/clang/include/absl/strings/numbers.h_:L209I:F5E:T Iwarning: M'diagnose_if' is a clang extension [-Wgcc-compat]E
_BOU  N209D |   {      A B S L _ I N T E R N A L _ N E E D _ M I N _ S I Z E (\b
u      f| f          ^~~~e
r, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :147warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]52
: warning:   215passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
cha  r147* |   a b s l _ n o n n u l l   F a s t IfnatlTsoeB,u fAfBeSrL(_iInNtT_EtRyNpAeL _iS,I
N      G| L      ^E
_A/usr/local/clang/include/absl/base/nullability.hR:G241(:)22):; 
      note: | expanded from macro 'absl_nonnull'                                                   ^

  241/usr/local/clang/include/absl/container/internal/raw_hash_map.h | :#120d:e9f:i nnote: emacro 'ABSL_INTERNAL_X' defined here 
abs  l120_ | n#odnenfuilnle  _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_X(FuncIn file included from ,s2/s2shapeutil_build_polygon_boundaries.cc :C24a:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.he:e66,:
 In file included from K/usr/local/clang/include/absl/container/internal/btree.hQ:u70a:
lIn file included from ,/usr/local/clang/include/absl/container/internal/layout.h :V198Q:
uIn file included from a/usr/local/clang/include/absl/strings/str_cat.hl:,116 :
KIn file included from V/usr/local/clang/include/absl/strings/internal/stringify_sink.ha:l23u:
e/usr/local/clang/include/absl/strings/numbers.h,: 216V:V49a:l uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 Ta  i216l | ,   . . . )   \ 
        |          ^ 
                              char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h                                                           ^:
148:3:/usr/local/clang/include/absl/base/nullability.h :241warning: :22passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 note: expanded from macro 'absl_nonnull'
  148   | 241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oXn(niunlsle r_tN_oonrn_ualsls
i      | g                     ^n
, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisIn file included from fs2/s2shapeutil_build_polygon_boundaries.cci:e24d:
,In file included from  /usr/local/clang/include/absl/container/btree_map.h.:.66.:
)In file included from  /usr/local/clang/include/absl/container/internal/btree.hi:f70_:
sIn file included from a/usr/local/clang/include/absl/container/internal/layout.ht:i198s:
fIn file included from i/usr/local/clang/include/absl/strings/str_cat.he:d116
:
      In file included from | /usr/local/clang/include/absl/strings/internal/stringify_sink.h        ^:
23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |       In file included from  s2/s2shapeutil_coding.cc : 28 :
 In file included from  ../src/s2/s2lax_polygon_shape.h : 36 :
 In file included from  ../src/s2/s2polygon.h : 29 :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.h : 45 :
 /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 148 : 3i:n twarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
ype* a  b148s | l _ nAoBnSnLu_lIlN ToEuRtN)A L{_
X      (| i                                        ^n
ser/usr/local/clang/include/absl/base/nullability.ht:_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 151../src/s2/s2crossing_edge_query.h::331::
 In file included from ../src/s2/s2padded_cell.hwarning: :23passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/s2cell_id.h:43:
In file included from   ../src/s2/s1angle.h151: | 28 :
 In file included from A../src/s2/s2point.hB:S27L:
_In file included from I../src/s2/s2coder.hN:T23E:
RIn file included from N/usr/local/clang/include/absl/status/status.hA:L67_:
XIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hi:n29s:
eIn file included from r/usr/local/clang/include/absl/strings/cord.ht:_94o:
rIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.ha:s31s:
ig/usr/local/clang/include/absl/synchronization/mutex.hn:,489 :i14n:s ewarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
_or_a  s489s | i g n _ i m pvlo,i dc o(n*satb&s,l _&n&u,l lfaabllsee ,i
n      v| a  ^r
ia/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:t133):(52v:o inote: dexpanded from macro 'ABSL_INTERNAL_X'*
 ab  s133l | _ n u l l a b i l i tAyB_SuLn_kInNoTwEnR)N,A
L      _| A             ^T
TRIBU/usr/local/clang/include/absl/base/nullability.hT:E257_:C23A:P Tnote: Uexpanded from macro 'absl_nullable'R
ED_  B257Y | (#tdheifsi)n)e,  a b s l _ n u l l a b l e   _ N u l l a b l e 
        | \                      ^

      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32In file included from :s2/s2shapeutil_visit_crossing_edge_pairs.cc9::18 :
In file included from note: ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hmacro 'ABSL_INTERNAL_IF_false' defined here:
23:
In file included from ../src/s2/s2crossing_edge_query.h   :3231 | :
#In file included from d../src/s2/s2padded_cell.he:f23i:
nIn file included from e../src/s2/s2cell_id.h :A43B:
SIn file included from L../src/s2/s1angle.h_:I28N:
TIn file included from E../src/s2/s2point.hR:N27A:
LIn file included from _../src/s2/s2coder.hI:F23_:
fIn file included from a/usr/local/clang/include/absl/status/status.hl:s67e:
(In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hf:_29s:
aIn file included from t/usr/local/clang/include/absl/strings/cord.hi:s94f:
iIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hd:,31 :
./usr/local/clang/include/absl/synchronization/mutex.h.:.489): 45_:_ Vwarning: Atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_
ARG  S489_ | _ 
        |          ^ 
 void (*abslIn file included from _s2/s2shapeutil_coding.ccn:u28l:
lIn file included from a../src/s2/s2lax_polygon_shape.hb:l36e:
 In file included from i../src/s2/s2polygon.hn:v29a:
rIn file included from i/usr/local/clang/include/absl/container/flat_hash_map.ha:n45t:
)/usr/local/clang/include/absl/container/internal/raw_hash_map.h(:v151o:i3d:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  u151l | l a bAiBlSiLt_yI_NuTnEkRnNoAwLn_)X,(
i      n| s                                            ^e
rt/usr/local/clang/include/absl/base/nullability.h_:o289r:_34a:s snote: iexpanded from macro 'absl_nullability_unknown'g
n,   i289n | s#edretf_ionre_ aasbssilg_nn_uilmlpalb,i lciotnys_tu&n,k n&o&w,n  f_aNluslel,_
u      n| s  ^p
ec/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:f135i:e16d:
       | note:                                  ^expanded from macro 'ABSL_INTERNAL_X'

  135 |           thIn file included from is2/s2shapeutil_visit_crossing_edge_pairs.ccs:)18):
)In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hA:B23S:
LIn file included from _../src/s2/s2crossing_edge_query.hA:T31T:
RIn file included from I../src/s2/s2padded_cell.hB:U23T:
EIn file included from _../src/s2/s2cell_id.hL:I43F:
EIn file included from T../src/s2/s1angle.hI:M28E:
_In file included from B../src/s2/s2point.hO:U27N:
DIn file included from  ../src/s2/s2coder.h{: 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 490 : 13 :   warning: \type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

      |                ^  
490 | /usr/local/clang/include/absl/container/internal/common.h : 32 : 9 :  vnote: omacro 'ABSL_INTERNAL_IF_false' defined herei
d*    a32b | s#ld_enfuilnlea bAiBlSiLt_yI_NuTnEkRnNoAwLn_ IaFr_gf)a;l
s      e| (            ^i
f_/usr/local/clang/include/absl/base/nullability.hs:a289t:i34s:f inote: eexpanded from macro 'absl_nullability_unknown'd
,   .289. | .#)d e_f_iVnAe_ AaRbGsSl___n
u      l| l        ^a
bility_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc../src/s2/s2polygon.h::1829:
:
In file included from In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h/usr/local/clang/include/absl/container/flat_hash_map.h::2345:
:
In file included from ../src/s2/s2crossing_edge_query.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::31154:
:In file included from 51../src/s2/s2padded_cell.h:: 23:
warning: In file included from ../src/s2/s2cell_id.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
43:
In file included from ../src/s2/s1angle.h:  28154:
 | In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29t:
rIn file included from u/usr/local/clang/include/absl/strings/cord.he:,94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T499E:R35N:A Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]S
ING  L499E | _ A RvGo(i)d) ;E
n      a| b                                                  ^l
eD/usr/local/clang/include/absl/container/internal/raw_hash_map.he:b120u:g9L:o gnote: (macro 'ABSL_INTERNAL_X' defined herec
ons  t120  | c#hdaerf*i naeb sAlB_SnLu_lIlNaTbElReN AnLa_mXe()F;u
n      c| ,                                  ^ 
Ca/usr/local/clang/include/absl/base/nullability.hl:l257e:e23,:  KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRnote: Iexpanded from macro 'absl_nullable'B
UTE_  L257I | F#EdTeIfMiEn_eB OaUbNsDl _{n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
        \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:In file included from 23s2/s2shapeutil_coding.cc:
:In file included from 28/usr/local/clang/include/absl/status/status.h:
:In file included from 67../src/s2/s2lax_polygon_shape.h:
:In file included from 36/usr/local/clang/include/absl/status/internal/status_internal.h:
:In file included from 29../src/s2/s2polygon.h:
:In file included from 29/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94/usr/local/clang/include/absl/container/flat_hash_map.h:
:In file included from 45/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:31/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:153/usr/local/clang/include/absl/synchronization/mutex.h::3549:: 40:warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549   | 153  |   s tAaBtSiLc_ IvNoTiEdR NIAnLc_rXe(miennsteSrytn_cohrS_eams(sMiugtne,x *i nasbesrlt__noorn_nauslsli gmnu_,i
m      p| l                                       ^,
 co/usr/local/clang/include/absl/base/nullability.hn:s241t:&22,:  &note: &expanded from macro 'absl_nonnull',
 f  a241l | s#ed,e
f      i| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
 ab  s154l | _ n o n n u l l   _ N o n n u l l 
       t| r                     ^u
e, ABSL_INTERNIn file included from As2/s2shapeutil_visit_crossing_edge_pairs.ccL:_18S:
IIn file included from N../src/s2/s2shapeutil_visit_crossing_edge_pairs.hG:L23E:
_In file included from A../src/s2/s2crossing_edge_query.hR:G31(:
)In file included from )../src/s2/s2padded_cell.h;:
23      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2cell_id.h
:43:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::28135:
:In file included from 11../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :13567 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
tIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.hi:s31):
)/usr/local/clang/include/absl/synchronization/mutex.h): 550A:B64S:L _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
TRIB  U550T | E _ L I F E T I M E _ B O U N D   {                              b a s e _ i n t e r n a l : : P\e
r      T| h          ^~~~r
eadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::94156:
:In file included from 52/usr/local/clang/include/absl/strings/internal/cordz_info.h:: 31:
warning: /usr/local/clang/include/absl/synchronization/mutex.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
551:40:   156warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      551  |      s t a t i c   b o ofla lDseec,r eAmBeSnLt_SIyNnTcEhRSNeAmL(_MSuItNeGxL*E _aAbRsGl(_)n)o;n
n      u| l                                                   ^l
 m/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:,120
:      9| :                                       ^ 
note: macro 'ABSL_INTERNAL_X' defined here/usr/local/clang/include/absl/base/nullability.h
:241:22:   120 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nXn(uFluln c_,N oCnanlullele
,       | K                     ^Q
ual, VQual, In file included from Ks2/s2shapeutil_visit_crossing_edge_pairs.ccV:a18l:
uIn file included from e../src/s2/s2shapeutil_visit_crossing_edge_pairs.h,: 23V:
VIn file included from a../src/s2/s2crossing_edge_query.hl:u31e:
,In file included from  ../src/s2/s2padded_cell.hT:a23i:
lIn file included from ,../src/s2/s2cell_id.h :.43.:
.In file included from )../src/s2/s1angle.h :\28
:
      In file included from | ../src/s2/s2point.h        ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_/usr/local/clang/include/absl/container/internal/raw_hash_map.hn:o155n:n3u:l lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
Nonn  u155l | l 
       A| B                     ^S
L_INTERNAL_X(insert_or_In file included from as2/s2shapeutil_visit_crossing_edge_pairs.ccs:s18i:
gIn file included from n../src/s2/s2shapeutil_visit_crossing_edge_pairs.h,: 23i:
nIn file included from s../src/s2/s2crossing_edge_query.he:r31t:
_In file included from o../src/s2/s2padded_cell.hr:_23a:
sIn file included from s../src/s2/s2cell_id.hi:g43n:
_In file included from i../src/s2/s1angle.hm:p28l:
,In file included from  ../src/s2/s2point.hc:o27n:
sIn file included from t../src/s2/s2coder.h&:,23 :
&In file included from &/usr/local/clang/include/absl/status/status.h,: 67t:
rIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.he:,29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h  ^:
94:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::13331::
52:/usr/local/clang/include/absl/synchronization/mutex.h :556note: :expanded from macro 'ABSL_INTERNAL_X'38
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]133
 |       556  |      v o iAdB SLLo_cIkNSTlEoRwNLAoLo_pA(TSTyRnIcBhUWTaEi_tCPAaPrTaUmRsE*D _aBbYs(lt_hniosn)n)u,l l   w a i t p ,   i n t   f l a g s ) ; 
        |                                       ^ 
 \/usr/local/clang/include/absl/base/nullability.h
:      241| :                                                   ^22
: /usr/local/clang/include/absl/container/internal/common.hnote: :expanded from macro 'absl_nonnull'31
:9:   241 | note: #macro 'ABSL_INTERNAL_IF_true' defined hered
efin   e31  | a#bdself_innoen nAuBlSlL __INNoTnEnRuNlAlL
_      I| F                     ^_
true(if_satisfied, ...)In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cci:f18_:
sIn file included from a../src/s2/s2shapeutil_visit_crossing_edge_pairs.ht:i23s:
fIn file included from i../src/s2/s2crossing_edge_query.he:d31
:
      In file included from | ../src/s2/s2padded_cell.h        ^:
23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23In file included from :
s2/s2shapeutil_coding.ccIn file included from :/usr/local/clang/include/absl/status/status.h28::
67In file included from :
../src/s2/s2lax_polygon_shape.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h36::
29In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/strings/cord.h29::
94In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h45::
31:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:/usr/local/clang/include/absl/synchronization/mutex.h155::5583::35 : warning: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  558 |    155  | b o oAlB SLLo_cIkNSTlEoRwNWAiLt_hXD(eiandsleirnte_(oMru_Haosws iagbns,l _innosnenrutl_lo rh_oaws,s
i      g| n                                  ^_
im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22c:o nnote: sexpanded from macro 'absl_nonnull't
&,   241& | &#,d etfriunee, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_no  n156n | u l l   _ N o n n u l l 
        |                       ^ 
  false, ABSIn file included from Ls2/s2shapeutil_visit_crossing_edge_pairs.cc_:I18N:
TIn file included from E../src/s2/s2shapeutil_visit_crossing_edge_pairs.hR:N23A:
LIn file included from _../src/s2/s2crossing_edge_query.hS:I31N:
GIn file included from L../src/s2/s2padded_cell.hE:_23A:
RIn file included from G../src/s2/s2cell_id.h(:)43):
;In file included from 
../src/s2/s1angle.h      :| 28                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 133../src/s2/s2coder.h::4723::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'ABSL_INTERNAL_X'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29  :
133In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :A559B:S46L:_ Iwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERN  A559L | _ A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) )const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitPar,am s *   a b s l _ n u l l a b l e   w a i t In file included from p s2/s2shapeutil_build_polygon_boundaries.cc) :  24A :
\BIn file included from 
S/usr/local/clang/include/absl/container/btree_map.hL      _:A| 66T                                              ^~~~T:

RIn file included from I/usr/local/clang/include/absl/container/internal/btree.hB:U70T:
EIn file included from _/usr/local/clang/include/absl/container/internal/layout.hC:O198L:
D;/usr/local/clang/include/absl/strings/str_cat.h
:      /usr/local/clang/include/absl/container/internal/raw_hash_map.h223| :                                   ^:155
25::3/usr/local/clang/include/absl/base/nullability.h :: warning: 257warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
23
: /usr/local/clang/include/absl/container/internal/raw_hash_map.hnote: :  expanded from macro 'absl_nullable'135223
: | 16   :257   | enote: #xexpanded from macro 'ABSL_INTERNAL_X'dpe
lfiicn  ie135t  | a b Hs le _x n( Pu lol ia bn lte e te_hN*uil sal)ab)bs)lle 
_An      Bu| Sl                      ^Ll
_aAbTlTeR IvB,U TPEa_dLSIpFeEcT IsMpEe_cB O=U NaDb s{l : : k N o P a d ) 
        |                          ^ 
    /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
    In file included from  257s2/s2shapeutil_visit_crossing_edge_pairs.cc\ | 
:#      18d| e:
               ^fIn file included from 
i../src/s2/s2shapeutil_visit_crossing_edge_pairs.hn:/usr/local/clang/include/absl/container/internal/common.he23: :
32aIn file included from b:../src/s2/s2crossing_edge_query.hs9:l:31_ n:
note: uIn file included from macro 'ABSL_INTERNAL_IF_false' defined herel../src/s2/s2padded_cell.hl
:a23b:
   lIn file included from 32e../src/s2/s2cell_id.h |  :#_43dN:
eufIn file included from lil../src/s2/s1angle.hna:eb28 lA:
eBIn file included from 
S../src/s2/s2point.h      L:| _27                      ^I:

NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:I67F:
_In file included from f/usr/local/clang/include/absl/status/internal/status_internal.ha:l29s:
eIn file included from (/usr/local/clang/include/absl/strings/cord.hi:f94_:
sIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.ht:i31s:
f/usr/local/clang/include/absl/synchronization/mutex.hi:e576d:,49 :. .warning: .type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
 __V  A576_ | A R GvSo_i_d
       T| r        ^y
Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from In file included from s2/s2shapeutil_coding.cc../src/s2/s2padded_cell.h::2823:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/s2cell_id.h::3643:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s1angle.h::2928:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2point.h::4527:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/s2coder.h::15823::
51In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h  :15894 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 578 : 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     t578r | u e ,v oAiBdS LB_lIoNcTkE(RbNaAsLe__SiInNtGeLrEn_aAlR:G:(P)e)r;T
h      r| e                                                  ^a
dS/usr/local/clang/include/absl/container/internal/raw_hash_map.hy:n120c:h9*:  anote: bmacro 'ABSL_INTERNAL_X' defined heres
l_n  o120n | n#udlelf isn)e; 
A      B| S                                            ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T241E:R22N:A Lnote: _expanded from macro 'absl_nonnull'X
(F  u241n | c#,d eCfailnlee ea,b sKlQ_unaoln,n uVlQlu a_lN,o nKnVualllu
e      ,|                       ^V
Value, Tail, ...)In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc\:
18      :
| In file included from         ^../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nulla/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:l157e: 3_:N uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
able  
157       | |                        ^ 
ABSL_INIn file included from Ts2/s2shapeutil_visit_crossing_edge_pairs.ccE:R18N:
AIn file included from L../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:X23(:
iIn file included from n../src/s2/s2crossing_edge_query.hs:e31r:
tIn file included from _../src/s2/s2padded_cell.ho:r23_:
aIn file included from s../src/s2/s2cell_id.hs:i43g:
nIn file included from ,../src/s2/s1angle.h :i28n:
sIn file included from e../src/s2/s2point.hr:t27_:
oIn file included from r../src/s2/s2coder.h_:a23s:
sIn file included from i/usr/local/clang/include/absl/status/status.hg:n67_:
iIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.hp:l29,:
 In file included from c/usr/local/clang/include/absl/strings/cord.ho:n94s:
tIn file included from &/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31&:
&/usr/local/clang/include/absl/synchronization/mutex.h,: 581t:r38u:e ,warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|   ^
  581 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 133 : 52 :  bnote: aexpanded from macro 'ABSL_INTERNAL_X's
e_i  n133t | e r n a l : : P e r TAhBrSeLa_dISNyTnEcRhN*A La_bAsTlT_RnIoBnUnTuEl_lC AwP)T;U
R      E| D                                     ^_
BY/usr/local/clang/include/absl/base/nullability.h(:t241h:i22s:) )note: ,expanded from macro 'absl_nonnull' 
     241  | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18 :
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28\:

In file included from       ../src/s2/s2point.h| :27                                                   ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31/usr/local/clang/include/absl/status/internal/status_internal.h::929::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
   31/usr/local/clang/include/absl/synchronization/mutex.h | :#590d:e40f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
ABSL  _590I | N T EeRxNpAlLi_cIiFt_ tMruuteex((ciofn_ssta tvioslfaiteidl,e  .M.u.t)e xi*f _asbastli_snfuilelda
b      l| e        ^ 
/*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #deIn file included from fs2/s2shapeutil_coding.cci:n28e:
 In file included from a../src/s2/s2lax_polygon_shape.hb:s36l:
_In file included from n../src/s2/s2polygon.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hl:e45 :
_/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:u157l:l3a:b lwarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

      |                       ^
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit /usr/local/clang/include/absl/container/internal/raw_hash_map.hM:u161t:e52x:L owarning: cpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]k
(Mu  t161e | x &   m u   A B S L _ I N T E R N A Lf_aAlTsTeR,I BAUBTSEL__CIANPTTEURRNEADL__BSYI(NtGhLiEs_)A)R
G      (| )                                                                   ^~~~)
;
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullabl/usr/local/clang/include/absl/synchronization/mutex.he: 635d:a29t:a (warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
const   635{ |   r eetxuprlni cpiite cMeu_t.edxaLtoac(k)(;M u}t
e      x| *              ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n ul/usr/local/clang/include/absl/container/flat_hash_map.hnote: l:expanded from macro 'absl_nullable' 45
m:
u  )/usr/local/clang/include/absl/container/internal/raw_hash_map.h257 : | A160#B:dS3eL:f_ EiXwarning: nCpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]eL
U SaIbVsEl  __L160nO | uC lK l_AaFBbSUlNLeC_T II_ONNNT(uEmluRl)NaA
bL      l_| e                            ^X

(      i| n                      ^s
e/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ign  ,241  | i#ndseefritn_eo ra_bassls_ingonn_niumlpll ,_ N&o&n,n ucloln
s      t| &                     ^,
 false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTEIn file included from _s2/s2shapeutil_visit_crossing_edge_pairs.ccL:I18F:
EIn file included from T../src/s2/s2shapeutil_visit_crossing_edge_pairs.hI:M23E:
_In file included from B../src/s2/s2crossing_edge_query.hO:U31N:
DIn file included from  ../src/s2/s2padded_cell.h{: 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h :\29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h               ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/container/internal/common.h31::
32:/usr/local/clang/include/absl/synchronization/mutex.h9::641 :68note: :macro 'ABSL_INTERNAL_IF_false' defined here 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
   32 | #de  f641i | n e  eAxBpSlLi_cIiNtT EMRuNtAeLx_LIoFc_kf(aMlustee(xi&f _msua tAiBsSfLi_eIdN,T E.R.N.A)L __A_TVTAR_IABRUGTSE___C
A      P| T        ^U
RED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:In file included from 29s2/s2shapeutil_coding.cc:: 28:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2lax_polygon_shape.h
:36:
In file included from ../src/s2/s2polygon.h  :64929 | :
 In file included from  /usr/local/clang/include/absl/container/flat_hash_map.he:x45p:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:c163i:t51 :M uwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
xLo  c163k | ( M u t e x *   a b s l _ n o n n u ltlr umeu,,  AcBoSnLs_tI NCToEnRdNiAtLi_oSnI&N GcLoEn_dA)R
G      (| )                            ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :                                                  ^241
:22:/usr/local/clang/include/absl/container/internal/raw_hash_map.h :120note: :expanded from macro 'absl_nonnull'9
: note: macro 'ABSL_INTERNAL_X' defined here  
241 | #d  e120f | i#ndee faibnsel _AnBoSnLn_uIlNlT E_RNNoAnLn_uXl(lF
u      n| c                     ^,
 Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, falseIn file included from ,s2/s2shapeutil_visit_crossing_edge_pairs.cc
:      18| :
  ^In file included from 
../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 133../src/s2/s2crossing_edge_query.h::5231::
 In file included from ../src/s2/s2padded_cell.hnote: :expanded from macro 'ABSL_INTERNAL_X'23
:
In file included from ../src/s2/s2cell_id.h:43  :
133In file included from  | ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.hA:B23S:
LIn file included from _/usr/local/clang/include/absl/status/status.hI:N67T:
EIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hN:A29L:
_In file included from A/usr/local/clang/include/absl/strings/cord.hT:T94R:
IIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hU:T31E:
_/usr/local/clang/include/absl/synchronization/mutex.hC:A670P:T74U:R Ewarning: D'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_
BY(thi  s670) | ) ,  e x p l i c i t   R e a d e r M u t e x L o c k ( M\u
t      e| x                                                   ^&
 m/usr/local/clang/include/absl/container/internal/common.hu: 32A:B9S:L _note: Imacro 'ABSL_INTERNAL_IF_false' defined hereN
TER   N32A | L#_dAeTfTiRnIeB UATBES_LC_AIPNTTUERRENDA_LB_YI(Ft_hfiasl)s)e
(      i| f                                                                         ^~~~_
satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/synchronization/mutex.h:678In file included from :s2/s2shapeutil_coding.cc35::28 :
In file included from warning: ../src/s2/s2lax_polygon_shape.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/s2polygon.h:29  :
678In file included from  | /usr/local/clang/include/absl/container/flat_hash_map.h : 45e:
x/usr/local/clang/include/absl/container/internal/raw_hash_map.hp:l162i:c3i:t  warning: Rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
ader  M162u | t e xALBoScLk_(IMNuTtEeRxN*A La_bXs(li_nnsoenrntu_lolr _maus)s iAgBnS,L _iSnHsAeRrEtD__oLrO_CaKs_sFiUgNnC_TiImOpNl(,m u&)&
,       | c                                  ^o
nst/usr/local/clang/include/absl/base/nullability.h&:,241 :f22a:l snote: eexpanded from macro 'absl_nonnull',

      |     ^241
 | #/usr/local/clang/include/absl/container/internal/raw_hash_map.hd:e135f:i16n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n135o | n n u l l   _ N o n ntuhlils
)      )| )                     ^ 
ABSL_ATTRIBUTE_LIFETIME_BOUND {         In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h\:
43      :
| In file included from                ^../src/s2/s1angle.h:28:
In file included from 
../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/common.h:
:In file included from 31../src/s2/s2coder.h::923::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:   2931:
 | In file included from #/usr/local/clang/include/absl/strings/cord.hd:e94f:
iIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31A:
B/usr/local/clang/include/absl/synchronization/mutex.hS:L681_:I74N:T Ewarning: R'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]N
AL_IF  _681t | r u ee(xipfl_iscaitti sRfeiaedde,r M.u.t.e)x Liofc_ks(aMtuitsefxi&e dm
u       | A        ^B
SL_INTERNAL_ATTRIIn file included from Bs2/s2shapeutil_coding.ccU:T28E:
_In file included from C../src/s2/s2lax_polygon_shape.hA:P36T:
UIn file included from R../src/s2/s2polygon.hE:D29_:
BIn file included from Y/usr/local/clang/include/absl/container/flat_hash_map.h(:t45h:
i/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:)162,:
3      :|                                                                           ^~~~
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu/usr/local/clang/include/absl/container/internal/raw_hash_map.h :A165B:S52L:_ Iwarning: Npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
ERN  A165L | _ A T T R I B U T E _ C A P T U R E Df_aBlYs(et,h iAsB)S)L
_      I| N                                                                         ^~~~T
ERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120/usr/local/clang/include/absl/synchronization/mutex.h | :#718d:e35f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABS  L718_ | I N TeExRpNlAiLc_iXt( FWurnict,e rCMaultleexeL,o cKkQ(uMault,e xV*Q uaabls,l _KnVoanlnuuel,l  VmVua)l
u      e| ,                                  ^ 
Tai/usr/local/clang/include/absl/base/nullability.hl:,241 :.22.:. )note:  expanded from macro 'absl_nonnull'\

      |           ^241
 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explic/usr/local/clang/include/absl/container/internal/raw_hash_map.hi:t164 :W3r:i twarning: epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]r
Mute  x164L | o c kA(BMSuLt_eIxN&T EmRuN AALB_SXL(_iInNsTeErRtN_AoLr__AaTsTsRiIgBnU,T Ei_nCsAePrTtU_RoErD__aBsYs(itghni_si)m,p
l      ,|                                                                           ^~~~&
&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |         /usr/local/clang/include/absl/synchronization/mutex.h : 731A:B35S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERN  A731L | _ A TeTxRpIlBiUcTiEt_ CWArPiTtUeRrEMDu_tBeYx(Ltohciks()M)u,t e x *   a b s l _ n o n n u l l   m u ,   c o n s t\ 
C      o| n                                                   ^d
iti/usr/local/clang/include/absl/container/internal/common.ho:n31&: 9c:o nnote: dmacro 'ABSL_INTERNAL_IF_true' defined here)

      |                                      ^31
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eI Fa_btsrlu_en(oinfn_uslalt i_sNfoinendu,l l.
.      .| )                     ^ 
if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBIn file included from Us2/s2shapeutil_visit_crossing_edge_pairs.ccT:E18_:
CIn file included from A../src/s2/s2shapeutil_visit_crossing_edge_pairs.hP:T23U:
RIn file included from E../src/s2/s2crossing_edge_query.hD:_31B:
YIn file included from (../src/s2/s2padded_cell.ht:h23i:
sIn file included from )../src/s2/s2cell_id.h):,43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
\In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                                              ^~~~:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 164:warning: 3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  801/usr/local/clang/include/absl/container/internal/raw_hash_map.h | : 135 :C16o:n dnote: iexpanded from macro 'ABSL_INTERNAL_X't
ion(  b135o | o l   ( * a b s l _ ntohninsu)l)l)  fAuBnScL)_(AvToTiRdI*B UaTbEs_lL_InFuElTlIaMbEi_lBiOty_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullIn file included from as2/s2shapeutil_build_polygon_boundaries.ccb:i24l:
iIn file included from t/usr/local/clang/include/absl/container/btree_map.hy:_66u:
nIn file included from k/usr/local/clang/include/absl/container/internal/btree.hn:o70w:
nIn file included from  /usr/local/clang/include/absl/container/internal/layout.h_:N198u:
ll/usr/local/clang/include/absl/strings/str_cat.h_:u501n:s32p:e cwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied
        501|  |                                  ^v
oid AppendPieces(std::stIn file included from rs2/s2shapeutil_visit_crossing_edge_pairs.cci:n18g:
*In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.ha:b23s:
lIn file included from _../src/s2/s2crossing_edge_query.hn:o31n:
nIn file included from u../src/s2/s2padded_cell.hl:l23 :
dIn file included from e../src/s2/s2cell_id.hs:t43,:

In file included from       ../src/s2/s1angle.h| :                               ^28
:
In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2coder.h::2223::
 In file included from /usr/local/clang/include/absl/status/status.hnote: :expanded from macro 'absl_nonnull'67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :24129 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_802n:o19n:n uwarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
 _N  o802n | n u l l 
        |                       ^ 
    void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabilityU_unkNnDo w{n   _ N u l l _ u n s p e c i f i e d 
        |                                   ^ 
       \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define AIn file included from Bs2/s2shapeutil_visit_crossing_edge_pairs.ccS:L18_:
IIn file included from N../src/s2/s2shapeutil_visit_crossing_edge_pairs.hT:E23R:
NIn file included from A../src/s2/s2crossing_edge_query.hL:_31I:
FIn file included from _../src/s2/s2padded_cell.hf:a23l:
sIn file included from e../src/s2/s2cell_id.h(:i43f:
_In file included from s../src/s2/s1angle.ha:t28i:
sIn file included from f../src/s2/s2point.hi:e27d:
,In file included from  ../src/s2/s2coder.h.:.23.:
)In file included from  /usr/local/clang/include/absl/status/status.h_:_67V:
AIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hA:R29G:
SIn file included from _/usr/local/clang/include/absl/strings/cord.h_:
94      :
| In file included from         ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from In file included from s2/s2shapeutil_coding.cc../src/s2/s2point.h::2827:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/s2coder.h::3623:
:
In file included from In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/status/status.h::2967:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h/usr/local/clang/include/absl/status/internal/status_internal.h::4529:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/strings/cord.h::16794::
51In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/synchronization/mutex.h
:814:42:   167 | warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      814  |      C o n d i t i o nt(rbuoeo,l  A(B*SaLb_sIlN_TnEoRnNnAuLl_lS IfNuGnLcE)_(ATR*G (a)b)s;l
_      n| u                                                  ^l
la/usr/local/clang/include/absl/container/internal/raw_hash_map.hb:i120l:i9t:y _note: umacro 'ABSL_INTERNAL_X' defined heren
kno  w120n | )#,d
e      f| i                                         ^n
e /usr/local/clang/include/absl/base/nullability.hA:B289S:L34_:I Nnote: Texpanded from macro 'absl_nullability_unknown'E
RNA  L289_ | X#(dFeufnicn,e  Caablslle_en,u lKlQaubaill,i tVyQ_uuanlk,n oKwVna l_uNeu,l lV_Vuanlsupee,c iTfaiield,
       .| .                                 ^.
) \
      |         ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabi/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:i166t:y3_:u nwarning: kpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
own   _166N | u l lA_BuSnLs_pIeNcTiEfRiNeAdL
_      X| (                                 ^i
nsert_or_assign, insert_or_aIn file included from ss2/s2shapeutil_visit_crossing_edge_pairs.ccs:i18g:
nIn file included from _../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:m23p:
lIn file included from ,../src/s2/s2crossing_edge_query.h :&31&:
,In file included from  ../src/s2/s2padded_cell.hc:o23n:
sIn file included from t../src/s2/s2cell_id.h&:,43 :
tIn file included from r../src/s2/s1angle.hu:e28,:

In file included from       ../src/s2/s2point.h| :  ^27
:
In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::23133:
:In file included from 52/usr/local/clang/include/absl/status/status.h:: 67:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
In file included from /usr/local/clang/include/absl/strings/cord.h  :13394 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 830 : 14A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INT  E830R | N A L _ A T TbRoIoBlU T(E*_aCbAsPlT_UnRoEnDn_uBlYl( tfhuinsc)))(,T *   a b s l _ n u l l a b i l i t y _ u n k n o w n\)
,      
|                                                          ^| 
             ^
/usr/local/clang/include/absl/container/internal/common.h:/usr/local/clang/include/absl/base/nullability.h31::2419::22 : note: note: macro 'ABSL_INTERNAL_IF_true' defined hereexpanded from macro 'absl_nonnull'

     24131 |  | ##ddeeffiinnee  aAbBsSlL__nIoNnTnEuRlNlA L__NIoFn_nturlule
(      i| f                     ^_
satisfIn file included from is2/s2shapeutil_visit_crossing_edge_pairs.cce:d18,:
 In file included from .../src/s2/s2shapeutil_visit_crossing_edge_pairs.h.:.23):
 In file included from i../src/s2/s2crossing_edge_query.hf:_31s:
aIn file included from t../src/s2/s2padded_cell.hi:s23f:
iIn file included from e../src/s2/s2cell_id.hd:
43      :
| In file included from         ^../src/s2/s1angle.h
:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :s2/s2shapeutil_coding.cc31::
28/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 830../src/s2/s2lax_polygon_shape.h::3636::
 In file included from ../src/s2/s2polygon.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]29
:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:  45830:
 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 166 : 3 :  bwarning: o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
l (*ab  s166l | _ n oAnBnSuLl_lI NfTuEnRcN)A(LT_*X (aibnssle_rntu_lor_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SIIn file included from Ns2/s2shapeutil_build_polygon_boundaries.ccG:L24E:
_In file included from A/usr/local/clang/include/absl/container/btree_map.hR:G66(:
)In file included from )/usr/local/clang/include/absl/container/internal/btree.h;:
70      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/container/internal/layout.h
:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36/usr/local/clang/include/absl/container/internal/raw_hash_map.h:: 135:warning: 11:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  635 | i  n135l | i n e   v o i d   S ttrhAipsp)e)n)d (AsBtSdL:_:AsTtTrRiInBgU*T Ea_bLsIlF_EnToInMnEu_lBlO)U N{D} 
{       |                                     ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
       241  |  # d e f i n e  \a
b      s| l          ^~~~_
nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, lcoanbsitl iAtlyp_huanNkunmo&w na)),;
/usr/local/clang/include/absl/container/internal/raw_hash_map.h
      :      | 170|                                    ^:                            ^
45
: /usr/local/clang/include/absl/base/nullability.hwarning: :241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
/usr/local/clang/include/absl/base/nullability.h22::289   :17034note:  | :expanded from macro 'absl_nonnull'  
 note:     expanded from macro 'absl_nullability_unknown'241 
 |  # d   e 289f  | i# nd ee  f ai bn se l  _aAnbBosSnlLn__unIluNlTl El_RaNNboAinLln_iuStlIylN_
Gu      Ln| Ek                     ^_n
AoRwGn( )_)N;u
l      l| _                                            ^u
ns/usr/local/clang/include/absl/container/internal/raw_hash_map.hp:e120c:i9f:iIn file included from  es2/s2shapeutil_build_polygon_boundaries.ccnote: d:macro 'ABSL_INTERNAL_X' defined here
24
      :
| In file included from                                  ^/usr/local/clang/include/absl/container/btree_map.h  
:12066 | :
#In file included from d/usr/local/clang/include/absl/container/internal/btree.he:f70i:
nIn file included from e/usr/local/clang/include/absl/container/internal/layout.h :A198B:
S/usr/local/clang/include/absl/strings/str_cat.hL:_637I:N29T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_X(  F637u | nvco,i dC aSltlreAep,p eKnQdu(aslt,d :V:In file included from Qss2/s2shapeutil_visit_crossing_edge_pairs.ccuta:lr18,i:
 nIn file included from Kg../src/s2/s2shapeutil_visit_crossing_edge_pairs.hV*:a 23lau:
beIn file included from s../src/s2/s2crossing_edge_query.h,l: _31Vn:
VoIn file included from an../src/s2/s2padded_cell.hlnu:ue23l,:
l In file included from  T../src/s2/s2cell_id.hda:ei43sl:
t,In file included from , ../src/s2/s1angle.h .:c.28o.:
n)In file included from s ../src/s2/s2point.ht\: 
27A      :
l| In file included from p        ^../src/s2/s2coder.hh
:a23N:
uIn file included from m/usr/local/clang/include/absl/status/status.h&: 67a:
,In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29                            ^:

In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h94::
241In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
831:46  :241  | warning: #type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]d
efin  e831  | a b s l _ n otnynpuelnla m_eN oanbnsull:l:
t      y| p                     ^e
_identity<T>::type* absl_nuIn file included from ls2/s2shapeutil_build_polygon_boundaries.ccl:a24b:
iIn file included from l/usr/local/clang/include/absl/container/btree_map.hi:t66y:
_In file included from u/usr/local/clang/include/absl/container/internal/btree.hn:k70n:
oIn file included from w/usr/local/clang/include/absl/container/internal/layout.hn:
198      :
| /usr/local/clang/include/absl/strings/str_cat.h                                             ^:
639:29/usr/local/clang/include/absl/base/nullability.h:: 289:warning: 34:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullability_unknown'
  639   | 289v | o#idde fSitnreA papbe/usr/local/clang/include/absl/container/internal/raw_hash_map.hsn:ld_169(n:us3tl:ld a:warning: b:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]si
ltirtiy  n_169gu | *n  k naAboBswSnlL ___nINoNnuTnlEuRll_NluA nLds_epXse(tci,inf siceeodrnt
s_to       r| A                                 ^_l
apshsaiNgunm,&  ian,s
e      r| t                            ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #In file included from &ds2/s2shapeutil_visit_crossing_edge_pairs.cc&e:,f18 i:
&nIn file included from &e../src/s2/s2shapeutil_visit_crossing_edge_pairs.h, : a23fb:
aslIn file included from ls../src/s2/s2crossing_edge_query.h_e:n,o31 n:
fnIn file included from au../src/s2/s2padded_cell.hll:ls23 e:
_,In file included from N
../src/s2/s2cell_id.ho      :n| 43n  ^:
u
lIn file included from l../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h
::      28133| :
:                     ^In file included from 52
../src/s2/s2point.h:: 27:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :13367 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from In file included from  /usr/local/clang/include/absl/strings/cord.hs2/s2shapeutil_build_polygon_boundaries.cc :: 9424 :
:
AIn file included from In file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/container/btree_map.hS::L3166_:
:
IIn file included from /usr/local/clang/include/absl/synchronization/mutex.hN/usr/local/clang/include/absl/container/internal/btree.h:T:844E70:R:
10NIn file included from :A/usr/local/clang/include/absl/container/internal/layout.h L:warning: _198type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A:

T/usr/local/clang/include/absl/strings/str_cat.hT:R  641I844:B | 29U :T  E warning: _ type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C A
 PTT*U  R 641aEb | Dsv_lo_BniYdo(n tnShutilrlsA )opb)p,jee cn td, (
 s       t|  d         ^ :
 : s/usr/local/clang/include/absl/base/nullability.h t: r241 i: n 22g :*    note: a expanded from macro 'absl_nonnull'b 
s l   _ 241n  | o# dne nf ui\nl
el        a| db                                                   ^es
ls_tn/usr/local/clang/include/absl/container/internal/common.h,o: n32ncu:lo9nl: s t_note: N macro 'ABSL_INTERNAL_IF_false' defined hereoAn
lnpu   lhl32a
 | N      #u| dm                     ^e&
f ian,e
       A| B                            ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
IFIn file included from   _s2/s2shapeutil_visit_crossing_edge_pairs.cc241f: | a18#l:
dsIn file included from ee../src/s2/s2shapeutil_visit_crossing_edge_pairs.hf(i:in23fe_:
 sIn file included from aa../src/s2/s2crossing_edge_query.hbt:si31ls:
_fIn file included from ni../src/s2/s2padded_cell.hoen:dn23,u:
 lIn file included from .l../src/s2/s2cell_id.h. :._43)N:
 oIn file included from _n../src/s2/s1angle.h_n:Vu28Al:
_lAIn file included from 
R../src/s2/s2point.h      G:| S27                     ^_:

_In file included from 
../src/s2/s2coder.h      :| 23        ^:

In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31In file included from :
s2/s2shapeutil_coding.cc:/usr/local/clang/include/absl/synchronization/mutex.h28::
845In file included from :../src/s2/s2lax_polygon_shape.h45::36 In file included from :
warning: s2/s2shapeutil_build_polygon_boundaries.ccIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:../src/s2/s2polygon.h
24::
29In file included from :
/usr/local/clang/include/absl/container/btree_map.h  In file included from :845/usr/local/clang/include/absl/container/flat_hash_map.h66 | ::
 45In file included from  :
/usr/local/clang/include/absl/container/internal/btree.h /usr/local/clang/include/absl/container/internal/raw_hash_map.h: :70 169 :
b:In file included from o3/usr/local/clang/include/absl/container/internal/layout.ho:l:  (198warning: a:
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
/usr/local/clang/include/absl/strings/str_cat.hs:l646:::  36t169:y |  p warning: e type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_Ai
BdSeLn  _t646Ii | NtTiyE<nRTlN>iA:nL:e_t Xyv(poiein:ds: *eS rtatrb_Aosplrp__enaonsndsn(iusgltnld, : m:isenttsrheirondtg)_(*o) r)a_;b
as      sl| _                                            ^sn
iogn/usr/local/clang/include/absl/base/nullability.hnn:_u241il:ml22p :ld ,enote:  sexpanded from macro 'absl_nonnull'&t
&,,    c241&o | &n#,sd etff iaAnllesp eahb,as lNf_uanmlo&sn ean,u,
l
l             | |   ^_                                   ^N

o/usr/local/clang/include/absl/container/internal/raw_hash_map.hn/usr/local/clang/include/absl/base/nullability.hn::u135l241l::
1622      ::|                       ^ 
note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'absl_nonnull'

  241   | 135# | d e f i n e   a b s lt_hniosn)n)u)l lA B_In file included from SNs2/s2shapeutil_visit_crossing_edge_pairs.ccLo:_n18An:
TuIn file included from Tl../src/s2/s2shapeutil_visit_crossing_edge_pairs.hRl:I
23B      :
U| In file included from T                     ^../src/s2/s2crossing_edge_query.hE
:_31L:
IIn file included from F../src/s2/s2padded_cell.hE:T23I:
MIn file included from E../src/s2/s2cell_id.h_:B43O:
UIn file included from N../src/s2/s1angle.hD: 28{:
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
\/usr/local/clang/include/absl/synchronization/mutex.h
:      850| :               ^16
: /usr/local/clang/include/absl/container/internal/common.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32
:9:   850note:  | macro 'ABSL_INTERNAL_IF_false' defined here 
       32  | c#odnesfti nTe*  AaBbSsLl__InNoTnEnRuNlAlL _oIbFj_efcatl,s
e      (| i               ^f
_s/usr/local/clang/include/absl/base/nullability.ha:t241i:s22f:i enote: dexpanded from macro 'absl_nonnull',
 .  .241. | )# d_e_fViAn_eA RaGbSs_l__
n      o| n        ^n
ull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:851:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  851 |       bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnullIn file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 cIn file included from os2/util/coding/varint.ccn:d24):
;In file included from 
../src/s2/base/logging.h      :| 21                                 ^:

In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/internal/check_op.h22::41 :
In file included from note: /usr/local/clang/include/absl/log/internal/strip.hexpanded from macro 'absl_nonnull':
26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h  :24153 | :
#/usr/local/clang/include/absl/types/source_location.hd:e142f:i25n:e  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_  n142o | n n ucloln s_tNeoxnpnru lclo
n      s| t                     ^ 
char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2shapeutil_visit_crossing_edge_pairs.ccn:u18l:
lIn file included from 
../src/s2/s2shapeutil_visit_crossing_edge_pairs.h      :| 23                     ^:

In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from /usr/local/clang/include/absl/status/status.hs2/util/coding/varint.cc::6724:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h../src/s2/base/logging.h::2921:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/check.h::9437:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/internal/check_impl.h::3121:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/check_op.h::88641::
31In file included from :/usr/local/clang/include/absl/log/internal/strip.h :26warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/log_message.h:53:
  /usr/local/clang/include/absl/types/source_location.h886: | 150 : 40e:x pwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
cit   150C | o n d i t i o n ( c o n s t   T *   a b s l _ n o n n ucloln sotb jc)h
a      r| *                              ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 f  i241l | e#_dneafmien)e
       a| b                                       ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2/util/coding/varint.cc::17224::
45In file included from :../src/s2/base/logging.h :21warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21In file included from 172:
s2/s2shapeutil_visit_crossing_edge_pairs.cc | In file included from : /usr/local/clang/include/absl/log/internal/check_op.h18 ::
 41In file included from  :
../src/s2/s2shapeutil_visit_crossing_edge_pairs.h In file included from  :/usr/local/clang/include/absl/log/internal/strip.h 23: :
26 In file included from :
 ../src/s2/s2crossing_edge_query.h In file included from  : /usr/local/clang/include/absl/log/internal/log_message.h 31 ::
 53In file included from  :
../src/s2/s2padded_cell.h :/usr/local/clang/include/absl/types/source_location.hA23B::
S165In file included from L:../src/s2/s2cell_id.h_15:I:43N :
TIn file included from warning: E../src/s2/s1angle.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R:
N28A:
L  In file included from _165../src/s2/s2point.hS | I: N27 G:
cLIn file included from Eo../src/s2/s2coder.hn_:sAt23R :
GcIn file included from (h/usr/local/clang/include/absl/status/status.h)a:r)67*;:
 
aIn file included from b      s/usr/local/clang/include/absl/status/internal/status_internal.hl| _:                                            ^n29o
:
nIn file included from n/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/strings/cord.hu:l:120l94: :
9fIn file included from i:l/usr/local/clang/include/absl/strings/internal/cordz_info.h e:note: _31macro 'ABSL_INTERNAL_X' defined heren:
a
/usr/local/clang/include/absl/synchronization/mutex.hm:e896  _: 12031= | : # d"warning: e"type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f;

i      n|   e              ^896 
 | A B /usr/local/clang/include/absl/base/nullability.hSe:Lx241p_l:Ii22cNi:Tt  Enote: RCexpanded from macro 'absl_nonnull'No
AnL  _d241Xi | t(#iFodunenf(cci,n oenCsat la lTeb*es ,alb_s nKoQnulnau_llln,o n n_VNuQloulna nluo,lb jlK)
V
      a      | l|                      ^u                              ^e

, /usr/local/clang/include/absl/base/nullability.hV:V241a:l22u:e ,note:  expanded from macro 'absl_nonnull'T
ai  l241, |  #.d.e.f)i n\e
       a| b        ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condi/usr/local/clang/include/absl/container/internal/raw_hash_map.ht:i171o:n3*:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_nu  l171l | a b lAeB SaL,_
I      N| T                                               ^E
RN/usr/local/clang/include/absl/base/nullability.hA:L257_:X23(:i nnote: sexpanded from macro 'absl_nullable'e
rt  _257o | r#_daesfsiingen ,a bisnls_enrutl_loarb_laes s_iNgunl_liambplle,
       &| &                      ^,
 &&, falseIn file included from ,In file included from s2/util/coding/varint.cc s2/s2shapeutil_visit_crossing_edge_pairs.cc:t:24r18:
u:
In file included from eIn file included from ../src/s2/base/logging.h,../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:
:21      23:
| :
In file included from   ^In file included from /usr/local/clang/include/absl/log/check.h
../src/s2/s2crossing_edge_query.h::3731/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:
:In file included from In file included from 133/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2padded_cell.h:::522123::
:
 In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.hnote: ../src/s2/s2cell_id.h:expanded from macro 'ABSL_INTERNAL_X':41
43:
:
In file included from In file included from   /usr/local/clang/include/absl/log/internal/strip.h../src/s2/s1angle.h133:: | 2628 :
:
 /usr/local/clang/include/absl/log/internal/log_message.hIn file included from  :../src/s2/s2point.h 71 :: 27 26:
 :In file included from   ../src/s2/s2coder.h :warning: A23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B:
S
In file included from L/usr/local/clang/include/absl/status/status.h_:I67   N:
T71In file included from E | /usr/local/clang/include/absl/status/internal/status_internal.hR :N 29AL:
oLIn file included from g_/usr/local/clang/include/absl/strings/cord.hMAe:Ts94Ts:
aRgIn file included from Ie/usr/local/clang/include/absl/strings/internal/cordz_info.hB(:Uc31To:
En/usr/local/clang/include/absl/synchronization/mutex.h_s:Ct923A :Pc48hTa:Ur R*warning:  Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]aDb
_sBlY  _(nto923hn | ni u s l)l )  , f  i   l  e  ,      i n  t    l i n  e  , 
           |                            ^   
    /usr/local/clang/include/absl/base/nullability.h  :  241 c: o 22n :s  t\note:  
Cexpanded from macro 'absl_nonnull'o      
n| d                                                     ^i241t
i | o#/usr/local/clang/include/absl/container/internal/common.hnd:e*f32 ia:nbes9l :a_ nbuslnote: lla_macro 'ABSL_INTERNAL_IF_false' defined herebn
loen n   bu32l)l | ; #
_d      Neo| nfn                                               ^iu
nle/usr/local/clang/include/absl/base/nullability.h l:A
257B      :S| 23L                     ^:_
 Inote: Nexpanded from macro 'absl_nullable'T
ER  N257A | L#_dIeFf_ifnael saeb(silf__nsualtliasbfliee d_,N u.l.l.a)b l_e_
V      A| _                      ^A
RGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.hs2/util/coding/varint.cc::4524:
:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/base/logging.h::17121::
3In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
  s2/s2shapeutil_visit_crossing_edge_pairs.ccIn file included from 171:/usr/local/clang/include/absl/log/internal/check_op.h | 18: :
41 In file included from :
A../src/s2/s2shapeutil_visit_crossing_edge_pairs.hIn file included from B:/usr/local/clang/include/absl/log/internal/strip.hS23:L:
26_In file included from :
I../src/s2/s2crossing_edge_query.h/usr/local/clang/include/absl/log/internal/log_message.hN::T3178E:
:RIn file included from 26N../src/s2/s2padded_cell.h:A: L23warning: _:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]XIn file included from 
(../src/s2/s2cell_id.hi:n43   s:
78eIn file included from  | r../src/s2/s1angle.ht :_ 28oL:
roIn file included from _g../src/s2/s2point.haM:se27ss:
isIn file included from ga../src/s2/s2coder.hng:,e23 (:
icIn file included from no/usr/local/clang/include/absl/status/status.hsn:se67tr :
tcIn file included from _h/usr/local/clang/include/absl/status/internal/status_internal.hoa:rr29_*:
a In file included from sa/usr/local/clang/include/absl/strings/cord.hsb:is94gl:
n_In file included from _n/usr/local/clang/include/absl/strings/internal/cordz_info.hio:mn31npu:
ll/usr/local/clang/include/absl/synchronization/mutex.h,l:  948&f:&i10,l: e &,warning: & type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i,n
 tf al  li948nse | e, , 
 b      toro| lu                         ^ e(,*

a      b| s/usr/local/clang/include/absl/base/nullability.hl  ^:_
n241u:l/usr/local/clang/include/absl/container/internal/raw_hash_map.hl22:a:135b l:note: e16expanded from macro 'absl_nonnull' :e
 vnote:   aexpanded from macro 'ABSL_INTERNAL_X'l241
_ | )#  (d135ecf | oin stn  e C  oan db ist l _i no not*nhn iasubl)sl)l _)_n NoAnoBnnSunlLlu_)lAl T
=T R      nI| uBl                     ^Ul
TpEt_rL;I
F      E| T         ^I
ME/usr/local/clang/include/absl/base/nullability.h_:B257O:U23N:D  note: {expanded from macro 'absl_nullable' 
     257  |  # d eIn file included from  fs2/util/coding/varint.cc i: n24 e :
  aIn file included from  b s../src/s2/base/logging.hl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull  c);
       |                                                     ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

        | 241               ^ | 
#defin/usr/local/clang/include/absl/container/internal/common.he: 31a:b9s:l _note: nmacro 'ABSL_INTERNAL_IF_true' defined hereo
nnul   l31  | _#Ndoenfniunlel 
A      B| S                     ^L
_INTERNAL_IF_true(if_satisfiIn file included from es2/s2shapeutil_visit_crossing_edge_pairs.ccd:,18 :
.In file included from .../src/s2/s2shapeutil_visit_crossing_edge_pairs.h.:)23 :
iIn file included from f../src/s2/s2crossing_edge_query.h_:s31a:
tIn file included from i../src/s2/s2padded_cell.hs:f23i:
eIn file included from d../src/s2/s2cell_id.h
:      43| :
        ^In file included from 
../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_coding.cc
:28:
In file included from ../src/s2/s2lax_polygon_shape.h  :95636 | :
 In file included from  ../src/s2/s2polygon.hs:t29a:
tIn file included from i/usr/local/clang/include/absl/container/flat_hash_map.hc: 45b:
o/usr/local/clang/include/absl/container/internal/raw_hash_map.ho:l171 :C3a:s twarning: A'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
dCallF  u171n | c t iAoBnS(Lc_oInNsTtE RCNoAnLd_iXt(iionns*e ratb_solr__naosnsniuglnl,  ci)n;s
e      r| t                                                   ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #&d&e,f i&n&e,  afbaslls_en,o ntnruulel, 
_      N| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nu  l172l | 
        |                       ^ 
              ABSL_INTERNAIn file included from Ls2/s2shapeutil_visit_crossing_edge_pairs.cc_:S18I:
NIn file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hG:L23E:
_In file included from A../src/s2/s2crossing_edge_query.hR:G31(:
)In file included from )../src/s2/s2padded_cell.h;:
23      :
| In file included from                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~../src/s2/s2cell_id.h
:43:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h../src/s2/s1angle.h::13528::
11In file included from :../src/s2/s2point.h :27note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2coder.h:23:
In file included from   /usr/local/clang/include/absl/status/status.h135: | 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94t:
hIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hs:)31):
)/usr/local/clang/include/absl/synchronization/mutex.h :A958B:S50L:_ Awarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
RIB  U958T | E _ LsItFaEtTiIcM Eb_oBoOlU NCDa s{t A n d C a l l M e t h o d ( c o n s t   C o n d i t i o n *\ 
a      b| s          ^~~~l
_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abs:l_n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41
:
      In file included from | /usr/local/clang/include/absl/log/internal/strip.h                     ^:
26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |  In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.ccL:o18g:
MIn file included from e../src/s2/s2shapeutil_visit_crossing_edge_pairs.hs:s23a:
gIn file included from e../src/s2/s2crossing_edge_query.h(:c31o:
nIn file included from s../src/s2/s2padded_cell.ht: 23c:
hIn file included from a../src/s2/s2cell_id.hr:*43 :
aIn file included from b../src/s2/s1angle.hs:l28_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :f23i:
lIn file included from e/usr/local/clang/include/absl/status/status.h,: 67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h :l29i:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hnIn file included from :e/usr/local/clang/include/absl/strings/cord.h174,::
9445      :
:| In file included from                           ^/usr/local/clang/include/absl/strings/internal/cordz_info.h
warning: :31passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/base/nullability.h::961  241:174:34 | 22: :   warning:  note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] expanded from macro 'absl_nonnull'
 
       961 241 |    |   # sd te af tii nc e   bAaoBboSslLl __CInaNolTnlEnBRuyNlRAleL f__(SNcIooNnnGnsLutEl _lTA
*R       G| a(                     ^b)
s)l;_
n      o| n                                            ^n
ul/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 120s:e9l:f )note:  macro 'ABSL_INTERNAL_X' defined here{

      |                                  ^  
120 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: Aexpanded from macro 'absl_nonnull'B
SL  _241I | N#TdEeRfNiAnLe_ Xa(bFsulIn file included from n_s2/util/coding/varint.ccnc:o,24 n:
CnIn file included from ua../src/s2/base/logging.hll:ll21 e:
e_,In file included from N /usr/local/clang/include/absl/log/check.hoK:nQ37un:
auIn file included from ll/usr/local/clang/include/absl/log/internal/check_impl.h,l: 
21V      :
Q| In file included from                      ^u/usr/local/clang/include/absl/log/internal/check_op.h
a:l41,:
 In file included from K/usr/local/clang/include/absl/log/internal/strip.hV:a26l:
u/usr/local/clang/include/absl/log/internal/log_message.he:,82 :V26V:a lwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
, T   a82i | l ,  L.o.In file included from g.s2/s2shapeutil_visit_crossing_edge_pairs.ccM):e 18s\:
s
In file included from a      ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hg| :e        ^23(
:
cIn file included from o../src/s2/s2crossing_edge_query.hn:s31t:
 In file included from c../src/s2/s2padded_cell.hh:a23r:
*In file included from  ../src/s2/s2cell_id.ha:b43s:
lIn file included from _../src/s2/s1angle.hn:o28n:
nIn file included from u../src/s2/s2point.hl:l27 :
fIn file included from i../src/s2/s2coder.hl:e23,:
 In file included from i/usr/local/clang/include/absl/status/status.hn:t67 :
lIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29,:

In file included from       /usr/local/clang/include/absl/strings/cord.h| :                         ^94
:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31241:
:/usr/local/clang/include/absl/synchronization/mutex.h22::975 :31note: :expanded from macro 'absl_nonnull' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e975f | i n ei nalbisnle_ nvoonindu lRle a_dNCoanlnlubackl(lT
*       | a                     ^b
sl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/synchronization/mutex.h::979173::433::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  979 |    173  | s t aAtIn file included from Bis2/util/coding/varint.cccS :Lb_o24Io:
NlIn file included from T ../src/s2/base/logging.hAEl:Rw21aNy:
sATIn file included from Lr/usr/local/clang/include/absl/log/check.hu_:eX(37(c:
oinIn file included from sn/usr/local/clang/include/absl/log/internal/check_impl.hst: eC21or:
ntdIn file included from _i/usr/local/clang/include/absl/log/internal/check_op.htoi:or41n_:
a*In file included from s /usr/local/clang/include/absl/log/internal/strip.hasbis:lg_26nn:
u,/usr/local/clang/include/absl/log/internal/log_message.h l:il119na:bsl41ee:)r t warning: _{type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] o
rr_eats  su119ir | ng n  _tLriomugepM;le, s s&}a
&g,      e | &&                                          ^ &
T,o /usr/local/clang/include/absl/base/nullability.hSt:ir257nu:ke23A,l :sfoa (lnote: asexpanded from macro 'absl_nullable'be
s,l
  :      257:|  | L#  ^od
egfSi/usr/local/clang/include/absl/container/internal/raw_hash_map.hnie:n 133ak:b*s52l _:an ubnote: slexpanded from macro 'ABSL_INTERNAL_X'll
_anbo  lne133n  | u_ lN lu l  ls aib nl ke 
 )       ;A| 
                      ^B      S
L| _                                        ^I
NTE/usr/local/clang/include/absl/base/nullability.hR:N241A:L22_:A Tnote: Texpanded from macro 'absl_nonnull'R
IB  U241T | E#_dCeAfPiTnUeR EaDb_sBlY_(ntohninsu)l)l,  _ N o n n u l l 
        |                       ^ 
             \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31In file included from :s2/util/coding/varint.cc9::24 :
In file included from note: ../src/s2/base/logging.hmacro 'ABSL_INTERNAL_IF_true' defined here:
21:
In file included from /usr/local/clang/include/absl/log/check.h   :3137 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_op.h :A41B:
SIn file included from L/usr/local/clang/include/absl/log/internal/strip.h_:I26N:
T/usr/local/clang/include/absl/log/internal/log_message.hE:R121N:A41L:_ Iwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
true  (121i | f _ sLaotgiMsefsiseadg,e &. .T.o)S iinfk_Osnaltyi(safbiseld:
:      L| o        ^g
Sink* absl_nonnull sink);
      In file included from | s2/s2shapeutil_coding.cc                                        ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2lax_polygon_shape.h::24136::
22In file included from :In file included from ../src/s2/s2polygon.h s2/s2shapeutil_visit_crossing_edge_pairs.cc::note: 2918expanded from macro 'absl_nonnull':
:

In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:241:45 | 23:
#:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hdIn file included from :e../src/s2/s2crossing_edge_query.h173f::i313n:
:eIn file included from   ../src/s2/s2padded_cell.hwarning: a:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b23
s:
lIn file included from _../src/s2/s2cell_id.hn:  o43173n:
 | nIn file included from  u../src/s2/s1angle.h l:AlB28S L:
__NIIn file included from oN../src/s2/s2point.hnT:nE27uR:
lNIn file included from lA../src/s2/s2coder.h
L:      _23X| (:
                     ^iIn file included from 
n/usr/local/clang/include/absl/status/status.hs:e67r:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ho:r29_:
aIn file included from s/usr/local/clang/include/absl/strings/cord.hs:i94g:
nIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :i31n:
s/usr/local/clang/include/absl/synchronization/mutex.he:r1033t:_20o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sig n1033_ | i m pvlo,i d& &W,a i&t&(,M uttreuxe*,  afbaslls_en,o
n      n| u  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
l   m174u | )   { 
        |                     ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'A
BS  L241_ | I#NdTeEfRiNnAeL _aSbIsNlG_LIn file included from nEs2/util/coding/varint.cc_o:AnRn24Gu(l:
)lIn file included from  )_../src/s2/base/logging.h;N:o
n21      n:
u| lIn file included from l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/log/check.h
      :| 37                     ^:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h
In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h133::2147:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.h:note: 41expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
  133/usr/local/clang/include/absl/log/internal/log_message.h | : 158 : 32 :   warning:  In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] s2/s2shapeutil_visit_crossing_edge_pairs.cc
 : 18A:
  BIn file included from 158S../src/s2/s2shapeutil_visit_crossing_edge_pairs.h | L: _23 I:
NLIn file included from oTg../src/s2/s2crossing_edge_query.hME:eRs31Ns:
aAgIn file included from Le../src/s2/s2padded_cell.h&_: A23oT:
pTIn file included from eRr../src/s2/s2cell_id.hIa:tB43Uo:
rT<In file included from E<_../src/s2/s1angle.h(Cv:oAi28dP:
T*In file included from U ../src/s2/s2point.hRa:Eb27Ds:
_lIn file included from _Bn../src/s2/s2coder.huYl:(l23atb:
hlIn file included from ei/usr/local/clang/include/absl/status/status.hs :) 67)v:
), In file included from  {/usr/local/clang/include/absl/status/internal/status_internal.h 
:       29 | :
                                ^In file included from  
/usr/local/clang/include/absl/strings/cord.h : 94/usr/local/clang/include/absl/base/nullability.h :
: In file included from 257 /usr/local/clang/include/absl/strings/internal/cordz_info.h: :23 31 ::
  /usr/local/clang/include/absl/synchronization/mutex.h note: :expanded from macro 'absl_nullable' 1050
 : 31   :257   |  warning: # type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d e
f i n\ e
 1050a      b | |  s                                              ^~~~l _
nbuololla bWlaei /usr/local/clang/include/absl/container/internal/raw_hash_map.ht_:WNi173tuh:lT3li:amb lewarning: oeu
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t      (
M| u                      ^/usr/local/clang/include/absl/container/internal/raw_hash_map.ht
e:x135*: 16a:b snote: lexpanded from macro 'ABSL_INTERNAL_X'_
non  n135u | l l   m uIn file included from  ,s2/util/coding/varint.cc  :a b24 s:
l :In file included from  :../src/s2/base/logging.htD:hui21rsa:
)tIn file included from )i/usr/local/clang/include/absl/log/check.h)o: n37A :
BtIn file included from Si/usr/local/clang/include/absl/log/internal/check_impl.hLm:e_21oAu:
TtIn file included from T)/usr/local/clang/include/absl/log/internal/check_op.hR :I{B41
U:
      TIn file included from | E                              ^/usr/local/clang/include/absl/log/internal/strip.h_
L:I26/usr/local/clang/include/absl/base/nullability.hF:
:E/usr/local/clang/include/absl/log/internal/log_message.h241T::I16122M::E38 _:note: B expanded from macro 'absl_nonnull'O
warning: Utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  N
241D |  #  d{161e  | f  i  n Le  o ag Mb es sl s_ an go ne n& u  lo lp  e _rN oa nt on ru <l <l 
( c      o n|                       ^s 
t\ 
v      o| i               ^d
* /usr/local/clang/include/absl/container/internal/common.ha:b32s:l9_:n unote: lmacro 'ABSL_INTERNAL_IF_false' defined herel
abl   e32  |  #vd)eIn file included from  f{s2/s2shapeutil_visit_crossing_edge_pairs.cc
i:      n18| e                                     ^:
 
In file included from A../src/s2/s2shapeutil_visit_crossing_edge_pairs.hB/usr/local/clang/include/absl/base/nullability.h:S:23L257:
_:In file included from I23../src/s2/s2crossing_edge_query.hN::T 31E:
note: RIn file included from Nexpanded from macro 'absl_nullable'../src/s2/s2padded_cell.hA
:L23  _:
257IIn file included from  | F../src/s2/s2cell_id.h_#:fd43ae:
lfIn file included from is../src/s2/s1angle.hne:(e28 ia:
bfIn file included from s_l../src/s2/s2point.hs_:an27tu:
ilIn file included from lsa../src/s2/s2coder.hfb:lie23e :
d_In file included from N,/usr/local/clang/include/absl/status/status.hu l:l.67.a:
b.In file included from l)e/usr/local/clang/include/absl/status/internal/status_internal.h 
:_      29_| :
V                      ^In file included from A
_/usr/local/clang/include/absl/strings/cord.hA:R94G:
SIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.h_:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h        ^:
1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/util/coding/varint.cce: 24a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hu:l41l:

In file included from       /usr/local/clang/include/absl/log/internal/strip.h| :                     ^26
:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/s2shapeutil_coding.cc
:28:
In file included from   ../src/s2/s2lax_polygon_shape.h179: | 36 :
 In file included from L../src/s2/s2polygon.ho:g29M:
eIn file included from s/usr/local/clang/include/absl/container/flat_hash_map.hs:a45In file included from g:
s2/s2shapeutil_visit_crossing_edge_pairs.cce/usr/local/clang/include/absl/container/internal/raw_hash_map.h:&:18 176o:
:pIn file included from e45../src/s2/s2shapeutil_visit_crossing_edge_pairs.hr::a 23t:
owarning: rIn file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]<../src/s2/s2crossing_edge_query.h<
(:w31c  :
h176In file included from a | ../src/s2/s2padded_cell.hr :_ t23 *:
  aIn file included from  b../src/s2/s2cell_id.h s: l43 _:
 nIn file included from u l../src/s2/s1angle.h l: a 28:
In file included from ../src/s2/s2point.h:27b:
In file included from ../src/s2/s2coder.h:23:
In file included from l/usr/local/clang/include/absl/status/status.he: 67v:
)In file included from ;/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                                  ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h::31257:
:23:/usr/local/clang/include/absl/synchronization/mutex.h :1088note: :35expanded from macro 'absl_nullable':
 warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]257
 | #defi n1088e |   a bvsoli_dn uElnlaabblleeD e_bNuuglLloagb(lceo
n      s| t                      ^ 
char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |  In file included from                       ^
s2/util/coding/varint.cc:24 :
 In file included from  ../src/s2/base/logging.h :A21B:
SIn file included from L/usr/local/clang/include/absl/log/check.h_:I37N:
TIn file included from E/usr/local/clang/include/absl/log/internal/check_impl.hR:N21A:
LIn file included from _/usr/local/clang/include/absl/log/internal/check_op.hS:I41N:
GIn file included from L/usr/local/clang/include/absl/log/internal/strip.hE:_26A:
RIn file included from /usr/local/clang/include/absl/log/internal/log_message.hs2/s2shapeutil_visit_crossing_edge_pairs.ccG::(19018)::
)42In file included from ;:../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
 :      23warning: | :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                            ^In file included from 

../src/s2/s2crossing_edge_query.h:31:
In file included from   ../src/s2/s2padded_cell.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h190:: | 23120 :
: In file included from 9L../src/s2/s2cell_id.h:o: g43note: M:
macro 'ABSL_INTERNAL_X' defined hereeIn file included from 
s../src/s2/s1angle.hs:a28  g:
120eIn file included from  | &../src/s2/s2point.h# :do27ep:
feIn file included from ir../src/s2/s2coder.hna:et23 o:
ArIn file included from B</usr/local/clang/include/absl/status/status.hS<:L(67_s:
ItIn file included from Nd/usr/local/clang/include/absl/status/internal/status_internal.hT::E:29Ro:
NsIn file included from At/usr/local/clang/include/absl/strings/cord.hLr:_e94Xa:
(mIn file included from F&/usr/local/clang/include/absl/strings/internal/cordz_info.hu :n(31c*:
,a/usr/local/clang/include/absl/synchronization/mutex.h b:Cs1091al:l_26ln:eo enwarning: ,ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] u
KlQlu  a1091ml | ), (  sVbtQuoaoll,  WKaViatlCuoem,m oVnV(aMluutee,x *T aaibls,l _.n.o.n)n u\l
l       | m        ^u
tex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void /usr/local/clang/include/absl/container/internal/raw_hash_map.hR:e175m:o3v:e (warning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
se_i  n175t | e r nAaBlS:L:_PIeNrTTEhRrNeAaLd_SXy(nicnhs*e ratb_solr__naosnsniuglnl,  si)n;s
e      r| t                                             ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: _expanded from macro 'absl_nonnull'i
mp  l241, |  #&d&e,f i&n&e,  atbrsule_,n otnrnuuel,l
       _| N  ^o
nn/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l133l:
52      :|                       ^note: 
expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_In file included from os2/s2shapeutil_visit_crossing_edge_pairs.ccr:_18a:
sIn file included from s../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:g23n:
_In file included from i../src/s2/s2crossing_edge_query.hm:p31l:
,In file included from  ../src/s2/s2padded_cell.h&:&23,:
 In file included from &../src/s2/s2cell_id.h&:,43 :
tIn file included from r../src/s2/s1angle.hu:e28,:
 In file included from t../src/s2/s2point.hr:u27e:
,In file included from 
../src/s2/s2coder.h      :| 23  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from /usr/local/clang/include/absl/status/status.h:  67176:
 | In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1109 :A34B:S Lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]I
NTE R1109N | A L _eSxIpNlGiLcEi_tA RMGu(t)e)x;L
o      c| k                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~M
ayb/usr/local/clang/include/absl/container/internal/raw_hash_map.he:(133M:u47t:e xnote: *expanded from macro 'ABSL_INTERNAL_X' 
abs  l133_ | n u l l a b l e   m uA)B
S      L| _                                 ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R257N:A23L:_ Anote: Texpanded from macro 'absl_nullable'T
RI  B257U | T#Ed_eCfAiPnTeU RaEbDs_lB_Yn(utlhliasb)l)e,  _ N u l l a b l e 
        |                        ^ 
            \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.hs2/s2shapeutil_visit_crossing_edge_pairs.cc::13518::
16In file included from :../src/s2/s2shapeutil_visit_crossing_edge_pairs.h :23note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2crossing_edge_query.h:31:
In file included from   ../src/s2/s2padded_cell.h135: | 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28t:
hIn file included from i../src/s2/s2point.hs:)27):
)In file included from  ../src/s2/s2coder.hA:B23S:
LIn file included from _/usr/local/clang/include/absl/status/status.hA:T67T:
RIn file included from I/usr/local/clang/include/absl/status/internal/status_internal.hB:U29T:
EIn file included from _/usr/local/clang/include/absl/strings/cord.hL:I94F:
EIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hI:M31E:
_/usr/local/clang/include/absl/synchronization/mutex.hB:O1117U:N34D:  {warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      1117  |      e x p l i c i t   M u t e x L o c k M a\y
b      e| (               ^M
ut/usr/local/clang/include/absl/container/internal/common.he:x31*: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_true' defined here_
nul   l31a | b#ldee fmiun,e  cAoBnSsLt_ ICNoTnEdRiNtAiLo_nI&F _ctornude)(
i      f| _                                 ^s
at/usr/local/clang/include/absl/base/nullability.hi:s257f:i23e:d ,note:  expanded from macro 'absl_nullable'.
..  )257  | i#fd_esfaitnies faibesdl
_      n| du        ^:l
:loasbtlree a_mN&u lolsIn file included from a)s2/s2shapeutil_coding.ccb):l;28e
:

      In file included from       | ../src/s2/s2lax_polygon_shape.h|                                          ^                      ^:

36:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/container/flat_hash_map.h:: 45:
note: /usr/local/clang/include/absl/container/internal/raw_hash_map.hexpanded from macro 'absl_nonnull':
175:3:   241 | warning: #'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d
efine   175a | b s lA_BnSoLn_nIuNlTlE R_NNAoLn_nXu(liln
s      e| r                     ^t
_or_assign, insert_or_assign_impl, &&, &&, true, trIn file included from us2/util/coding/varint.cce:,24
:
      In file included from | ../src/s2/base/logging.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
21:
In file included from   /usr/local/clang/include/absl/log/check.h176: | 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_op.h : 41 :
 In file included from  /usr/local/clang/include/absl/log/internal/strip.h : 26 :
 /usr/local/clang/include/absl/log/internal/log_message.h :A191B:S43L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERNA  L191_ | S I NLGoLgEM_eAsRsGa(g)e)&; 
o      p| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~r
ato/usr/local/clang/include/absl/container/internal/raw_hash_map.hr:<135<:(11s:t dnote: :expanded from macro 'ABSL_INTERNAL_X':
ios  _135b | a s e &   ( * a b In file included from s2/s2text_format.cc:16:
sIn file included from ../src/s2/s2text_format.hl:_34n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hm:)66(:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.hd::70::
iIn file included from o/usr/local/clang/include/absl/container/internal/layout.hs:_198b:
aIn file included from s/usr/local/clang/include/absl/strings/str_cat.he:&116 :
oIn file included from s/usr/local/clang/include/absl/strings/internal/stringify_sink.h):)23;:

      /usr/local/clang/include/absl/strings/numbers.h| :                                          ^66
:41: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22: note: expanded from macro 'absl_nonnull'
   66 |    241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u liln
t      _| t                     ^y
pe* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnIn file included from us2/util/coding/varint.ccl:l24 :
oIn file included from u../src/s2/base/logging.ht:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                                             ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_op.h:: 41:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/strip.h
:26:
  241/usr/local/clang/include/absl/log/internal/log_message.h | :#306d:e3f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l306_ | n o nanbuslll_ n_oNnonnunlull ls
t      d| :                     ^:
unique_ptr<LogMessageDatIn file included from as2/s2text_format.cc>: 16d:
aIn file included from t../src/s2/s2text_format.ha:_34;:

In file included from       ../src/s2/mutable_s2shape_index.h| :  ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/base/nullability.h66::
241In file included from :/usr/local/clang/include/absl/container/internal/btree.h22::70 :
In file included from note: /usr/local/clang/include/absl/container/internal/layout.hexpanded from macro 'absl_nonnull':
198:
In file included from   /usr/local/clang/include/absl/strings/str_cat.h241: | 116#:
dIn file included from e/usr/local/clang/include/absl/strings/internal/stringify_sink.hf:i23n:
e/usr/local/clang/include/absl/strings/numbers.h :a98b:s60l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null    98_ | N[o[nnnoudlils
c      a| r                     ^d
]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2text_format.ccs2/s2shapeutil_visit_crossing_edge_pairs.cc::1618:
:
In file included from In file included from ../src/s2/s2text_format.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::3423:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2crossing_edge_query.h::3031:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2padded_cell.h::6623:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2cell_id.h::7043:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h../src/s2/s1angle.h::19828:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h../src/s2/s2point.h::11627:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2coder.h::2323:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h/usr/local/clang/include/absl/status/status.h::15267::
37In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h152: | 31v:
oi/usr/local/clang/include/absl/synchronization/mutex.hd: 1132P:u10t:T wwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]D
igi t1132s | ( u iMnutt3e2x_*t  aib,s lc_hnaurl*l aabblsel _cnoonnsntu lmlu _b;u
f      )| ;         ^

      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257/usr/local/clang/include/absl/base/nullability.h::23241:: 22:note:  expanded from macro 'absl_nullable'note: 
  257 | # dtehfiisn)e) )a bAsBlS_Ln_uAlTlTaRbIlBeU T_EN_uLlIlFaEbTlIeM
E      _| B                      ^O
UND {                              \
      |           ^~~~
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or/usr/local/clang/include/absl/synchronization/mutex.h_:a1153s:s39i:g nwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ins e1153r | t _ oerx_palsisciigtn _Riemlpela,s acbolnesMtu&t,e xcLooncskt(&M,u
t      e| x  ^*
 ab/usr/local/clang/include/absl/container/internal/raw_hash_map.hs:l133_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l m  u133) | 
        |                                        ^ 
   /usr/local/clang/include/absl/base/nullability.h : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| ,                     ^ 
                         \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   In file included from 32s2/s2shapeutil_visit_crossing_edge_pairs.cc | :#18d:
eIn file included from f../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:n23e:
 In file included from A../src/s2/s2crossing_edge_query.hB:S31L:
_In file included from I../src/s2/s2padded_cell.hN:T23E:
RIn file included from N../src/s2/s2cell_id.hA:L43_:
IIn file included from F../src/s2/s1angle.h_:f28a:
lIn file included from s../src/s2/s2point.he:(27i:
fIn file included from _../src/s2/s2coder.hs:a23t:
iIn file included from s/usr/local/clang/include/absl/status/status.hf:i67e:
dIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :.29.:
.In file included from )/usr/local/clang/include/absl/strings/cord.h :_94_:
VIn file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.h_:A31R:
G/usr/local/clang/include/absl/synchronization/mutex.hS:_1158_:
53      :|          ^
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |    In file included from  s2/s2shapeutil_coding.cc : 28M:
uIn file included from t../src/s2/s2lax_polygon_shape.he:x36&:
 In file included from m../src/s2/s2polygon.hu: 29A:
BIn file included from S/usr/local/clang/include/absl/container/flat_hash_map.hL:_45I:
N/usr/local/clang/include/absl/container/internal/raw_hash_map.hT:E178R:N3A:L _warning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
TRI  B178U | T E _ACBASPLT_UIRNETDE_RBNYA(Lt_hXi(si)n,s
e      r| t                                                    ^~~~_
or_assign, insert_or_assign_impl, const&/usr/local/clang/include/absl/synchronization/mutex.h,: 1166c:o39n:s twarning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |   ^
 1166 | /usr/local/clang/include/absl/container/internal/raw_hash_map.h : 135e:x16p:l inote: cexpanded from macro 'ABSL_INTERNAL_X'i
t R  e135l | e a s a b l e M u t etxhLiosc)k)()M uAtBeSxL*_ AaTbTsRlI_BnUoTnEn_uLlIlF EmTuI,M Ec_oBnOsUtN DC o{n d i t i o n &   c o n d ) 
        |                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
 \  
241       | | #               ^d
ef/usr/local/clang/include/absl/container/internal/common.hi:n32e: 9a:b snote: lmacro 'ABSL_INTERNAL_IF_false' defined here_
non   n32u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull v  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: In file included from note: s2/s2shapeutil_visit_crossing_edge_pairs.ccmacro 'ABSL_INTERNAL_IF_true' defined here:
18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h   :3123 | :
#In file included from d../src/s2/s2crossing_edge_query.he:f31i:
nIn file included from e../src/s2/s2padded_cell.h :A23B:
SIn file included from L../src/s2/s2cell_id.h_:I43N:
TIn file included from E../src/s2/s1angle.hR:N28A:
LIn file included from _../src/s2/s2point.hI:F27_:
tIn file included from r../src/s2/s2coder.hu:e23(:
iIn file included from f/usr/local/clang/include/absl/status/status.h_:s67a:
tIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hs:f29i:
eIn file included from d/usr/local/clang/include/absl/strings/cord.h,: 94.:
.In file included from ./usr/local/clang/include/absl/strings/internal/cordz_info.h): 31i:
f_/usr/local/clang/include/absl/synchronization/mutex.hs:a1212t:i52s:f iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d

      |         ^
 1212 | bool Condition::CasIn file included from ts2/s2shapeutil_coding.ccA:n28d:
CIn file included from a../src/s2/s2lax_polygon_shape.hl:l36M:
eIn file included from t../src/s2/s2polygon.hh:o29d:
(In file included from c/usr/local/clang/include/absl/container/flat_hash_map.ho:n45s:
t/usr/local/clang/include/absl/container/internal/raw_hash_map.h :C180o:n3d:i twarning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]o
n* ab  s180l | _ n oAnBnSuLl_lI NcT)E R{N
A      L| _                                                   ^X
(ins/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
sig  n241, |  #idnesfeirnte_ oarb_sals_sniognnn_uilmlp l_,N ocnonnusltl&
,       | c                     ^o
nst&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMIn file included from Ms2/s2shapeutil_visit_crossing_edge_pairs.ccA:)18;:

In file included from       ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~23
:
In file included from ../src/s2/s2crossing_edge_query.h:/usr/local/clang/include/absl/container/internal/raw_hash_map.h31::
135In file included from :../src/s2/s2padded_cell.h11::23 :
In file included from note: ../src/s2/s2cell_id.hexpanded from macro 'ABSL_INTERNAL_X':
43:
In file included from ../src/s2/s1angle.h:28:
  In file included from 135../src/s2/s2point.h | : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h :t67h:
iIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.h):)29):
 In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hT:T31R:
I/usr/local/clang/include/absl/synchronization/mutex.hB:U1221T:E54_:L Iwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
TIME _1221B | ObUoNoDl  {C o n d i t i o n : : C a s t A n d C a l l F u n c t i o n (\c
o      n| s          ^~~~t
 Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h/usr/local/clang/include/absl/base/nullability.h::182241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

  241 |   #182d | e f iAnBeS La_bIsNlT_EnRoNnAnLu_lXl( i_nNsoenrntu_lolr
_      a| s                     ^s
ign, inIn file included from ss2/s2shapeutil_visit_crossing_edge_pairs.cce:r18t:
_In file included from o../src/s2/s2shapeutil_visit_crossing_edge_pairs.hr:_23a:
sIn file included from s../src/s2/s2crossing_edge_query.hi:g31n:
_In file included from i../src/s2/s2padded_cell.hm:p23l:
,In file included from  ../src/s2/s2cell_id.hc:o43n:
sIn file included from t../src/s2/s1angle.h&:,28 :
cIn file included from o../src/s2/s2point.hn:s27t:
&In file included from ,../src/s2/s2coder.h :t23r:
uIn file included from e/usr/local/clang/include/absl/status/status.h,:
67      :
| In file included from   ^/usr/local/clang/include/absl/status/internal/status_internal.h
:29:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/strings/cord.h133::9452:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/synchronization/mutex.h:1230:34  :133  | warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
     1230  |       A BbSoLo_lI N(T*EaRbNsAlL__nAoTnTnRuIlBlU TfEu_nCcA)P(TTU*R EaDb_sBlY_(ntuhlilsa)b)i,l i t y _ u n k n o w n ) , 
        |                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h : 289 : 34 :  \note: 
expanded from macro 'absl_nullability_unknown'      
|                                                    ^
  289 | /usr/local/clang/include/absl/container/internal/common.h#:d31e:f9i:n enote:  macro 'ABSL_INTERNAL_IF_true' defined herea
bsl   _31n | u#ldleafbiinlei tAyB_SuLn_kInNoTwEnR N_ANLu_lIlF__utnrsupee(ciiff_iseadt
i      s| f                                 ^i
ed, ...) if_satisfieIn file included from ds2/s2shapeutil_visit_crossing_edge_pairs.cc
:      18| :
        ^In file included from 
../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/s2shapeutil_coding.ccIn file included from :../src/s2/s2point.h28::
27In file included from :
../src/s2/s2lax_polygon_shape.hIn file included from :../src/s2/s2coder.h36::
23In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/status/status.h29::
67In file included from :
/usr/local/clang/include/absl/container/flat_hash_map.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h45::
29:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :/usr/local/clang/include/absl/strings/cord.h182::943:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:warning: 31:
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8:   warning: 182type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] | 
  A B1231S | L _ I N TTE*R NaAbLs_lX_(niunlslearbti_loirt_ya_susnikgnno,w ni nasregr)t
_      o| r       ^_
as/usr/local/clang/include/absl/base/nullability.hs:i289g:n34_:i mnote: pexpanded from macro 'absl_nullability_unknown'l
,   c289o | n#sdte&f,i nceo nasbts&l,_ nturlulea,b
i      l| i  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t
y_u  n183k | n o w n   _ N u l l _ u n s p e c i ffiaelds
e      ,|                                   ^.
first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #dalue,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/util/coding/varint.cc  :18224 | :
cIn file included from h../src/s2/base/logging.ha:r21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hl: 41R:
oIn file included from u/usr/local/clang/include/absl/log/internal/strip.hn:d26T:
ri/usr/local/clang/include/absl/log/internal/log_message.hp:D319o:u20b:l ewarning: Ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
Buff  e319r | ( d o u bcloen sdt,  wcchhaarr*_ ta*b salb_snlo_nnnuulllla bbluef fceorn)s;t
&       | v      ^)
;
      /usr/local/clang/include/absl/base/nullability.h| :                   ^241
:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'257
:23:   241 | note: #expanded from macro 'absl_nullable'd
ef  i257n | e# daebfsiln_en oanbnsull_ln u_lNloanbnluel l_
N      u| l                     ^l
able
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RIn file included from os2/util/coding/varint.ccu:n24d:
TIn file included from r../src/s2/base/logging.hi:p21D:
oIn file included from u/usr/local/clang/include/absl/log/check.hb:l37e:
TIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hB:u21f:
fIn file included from e/usr/local/clang/include/absl/log/internal/check_op.hr:(41d:
oIn file included from u/usr/local/clang/include/absl/log/internal/strip.hb:l26e:
 /usr/local/clang/include/absl/log/internal/log_message.hd:,321 :c52h:a rwarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl  _321n | oinnnluilnle  bLuofgfMeers)s;a
g      e| &                                                           ^ 
Lo/usr/local/clang/include/absl/base/nullability.hg:M241e:s22s:a gnote: eexpanded from macro 'absl_nonnull':
:o  p241e | r#adteofri<n<e( wacbhsalr__nto*n naublsll __nNuolnlnaubllle
       v| )                     ^ 
{
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2text_format.cc257: | 16#:
dIn file included from e../src/s2/s2text_format.hf:i34n:
eIn file included from  ../src/s2/mutable_s2shape_index.ha:b30s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from a/usr/local/clang/include/absl/container/internal/btree.hb:l70e:
 In file included from _/usr/local/clang/include/absl/container/internal/layout.hN:u198l:
lIn file included from a/usr/local/clang/include/absl/strings/str_cat.hb:l116e:

In file included from       /usr/local/clang/include/absl/strings/internal/stringify_sink.h| :                      ^23
:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/util/coding/varint.cc:24:
  In file included from 183../src/s2/base/logging.h | :c21h:
aIn file included from r/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from  /usr/local/clang/include/absl/log/internal/strip.hR:o26u:
n/usr/local/clang/include/absl/log/internal/log_message.hd:T340r:i46p:F lwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tToB  u340f | f e rf(rfileonadt  vfo,i dc hAabrs*l Faobrsmla_tnFolnunsuhl(lS tbruifnfgeirf)y;S
i      n| k                                                         ^*
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241s | i#ndke,f
i      n| e                                             ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _NonnulIn file included from ls2/s2text_format.cc
:      16| :
                     ^In file included from 
../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: In file included from warning: s2/s2shapeutil_visit_crossing_edge_pairs.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h  :19823 | :
cIn file included from h../src/s2/s2crossing_edge_query.ha:r31*:
 In file included from a../src/s2/s2padded_cell.hb:s23l:
_In file included from n../src/s2/s2cell_id.ho:n43n:
uIn file included from l../src/s2/s1angle.hl: 28F:
aIn file included from s../src/s2/s2point.ht:I27n:
tIn file included from T../src/s2/s2coder.ho:B23u:
fIn file included from f/usr/local/clang/include/absl/status/status.he:r67(:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.ht:3292:
_In file included from t/usr/local/clang/include/absl/strings/cord.h :i94,:
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.hh:a31r:
* /usr/local/clang/include/absl/synchronization/mutex.ha:b1241s:l12_:n owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  b1241u | f f e r )b
o      o| l                                                    ^ 
(*/usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | f#udnecf)i(nTe*  aabbssll__nnounlnlualbli l_iNtoyn_nuull
      |                      ^
nkneowfni)n,e
       A| B           ^S
L_IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Iexpanded from macro 'absl_nonnull'F
_fa  l241s | e#(dieff_isnaet iasbfsile_dn,o n.n.u.l)l  ___NVoAn_nAuRlGlS
_      _| 
                     ^      
|         ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242In file included from  | s2/s2shapeutil_coding.cc : 28 :
 In file included from t../src/s2/s2lax_polygon_shape.hy:p36e:
nIn file included from a../src/s2/s2polygon.hm:e29 :
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hs:l45::
:t/usr/local/clang/include/absl/container/internal/raw_hash_map.hy:p184e:_3i:d ewarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
ity<  T184> | : : tAyBpSeL*_ IaNbTsElR_NnAuLl_lXa(biinlsietryt__uonrk_naoswsni
g      n| ,                                           ^ 
in/usr/local/clang/include/absl/base/nullability.hs:e289r:t34_:o rnote: _expanded from macro 'absl_nullability_unknown'a
ss  i289g | n#_diemfpiln,e  caobnsslt_&n,u lcloanbsitl&i,t yt_ruunek,n
o      w| n  ^ 
_N/usr/local/clang/include/absl/container/internal/raw_hash_map.hu:l133l:_52u:n snote: pexpanded from macro 'ABSL_INTERNAL_X'e
cif  i133e | d 
        |                                   ^ 
     ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),      In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from  ../src/s2/s2padded_cell.h : 23 :
 In file included from \../src/s2/s2cell_id.h
:      43| :
                                                   ^In file included from 
../src/s2/s1angle.h:28:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2point.h31::279:
:In file included from  ../src/s2/s2coder.h:note: 23macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from /usr/local/clang/include/absl/status/status.h:67   :
31In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fIn file included from i/usr/local/clang/include/absl/strings/cord.hn:e94 :
AIn file included from B/usr/local/clang/include/absl/strings/internal/cordz_info.hS:L31_:
I/usr/local/clang/include/absl/synchronization/mutex.hN:T1249E:R8N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
F_t r1249u | e ( i f _Ts*a taibssfli_endo,n n.u.l.l)  oibfj_escatt,i
s      f| i       ^e
d
      /usr/local/clang/include/absl/base/nullability.h| :        ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2shapeutil_coding.ccs:l28_:
nIn file included from o../src/s2/s2lax_polygon_shape.hn:n36u:
lIn file included from l../src/s2/s2polygon.h :_29N:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_map.hn:u45l:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.h
:      184| :                     ^3
: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSLIn file included from _s2/s2shapeutil_visit_crossing_edge_pairs.cc:I18N:
TIn file included from E../src/s2/s2shapeutil_visit_crossing_edge_pairs.hR:N23A:
LIn file included from _../src/s2/s2crossing_edge_query.hX:(31i:
nIn file included from s../src/s2/s2padded_cell.he:r23t:
_In file included from o../src/s2/s2cell_id.hr:_43a:
sIn file included from s../src/s2/s1angle.hi:g28n:
,In file included from  ../src/s2/s2point.hi:n27s:
eIn file included from r../src/s2/s2coder.ht:_23o:
rIn file included from _/usr/local/clang/include/absl/status/status.ha:s67s:
iIn file included from g/usr/local/clang/include/absl/status/internal/status_internal.hn:_29i:
mIn file included from p/usr/local/clang/include/absl/strings/cord.hl:,94 :
cIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:s31t:
&/usr/local/clang/include/absl/synchronization/mutex.h,: 1250c:o43n:s twarning: &type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 tr u1250e | , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
ool   185( | a b s l : : t y p e _ i d e n t i t yt<rTu>e:,: t.yfpier:s:t*,  acbosnls_tn_ointneurlalt omre tAhBoSdL)_(I)N)T
E      R| N                                          ^A
L_/usr/local/clang/include/absl/base/nullability.hC:O241M:M22A:) ;note: 
expanded from macro 'absl_nonnull'      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #d/usr/local/clang/include/absl/container/internal/raw_hash_map.he:f133i:n47e:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_no  n133n | u l l   _ N o n n u lAlB
S      L| _                     ^I
NTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2shapeutil_visit_crossing_edge_pairs.cc
:18/usr/local/clang/include/absl/container/internal/raw_hash_map.h:
:In file included from 135../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::1623::
 In file included from ../src/s2/s2crossing_edge_query.hnote: :expanded from macro 'ABSL_INTERNAL_X'31
:
In file included from ../src/s2/s2padded_cell.h:23  :
135In file included from  | ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.ht:h27i:
sIn file included from )../src/s2/s2coder.h):)23 :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
AIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hT:R29I:
BIn file included from U/usr/local/clang/include/absl/strings/cord.hT:E94_:
LIn file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hF:E31T:
I/usr/local/clang/include/absl/synchronization/mutex.hM:E1259_:B14O:U Nwarning: Dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{    1259  |          c o n s t   T *   a b s l _ n o n n u l l  \o
b      j| e               ^c
t,/usr/local/clang/include/absl/container/internal/common.h
:      31| :             ^9
: /usr/local/clang/include/absl/base/nullability.hnote: :macro 'ABSL_INTERNAL_IF_true' defined here241
:22:    31note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eAfBiSnLe_ IaNbTsElR_NnAoLn_nIuFl_lt r_uNeo(ninfu_lsla
t      i| s                     ^f
ied, ...) if_satisfiIn file included from es2/s2shapeutil_visit_crossing_edge_pairs.ccd:
18      :
| In file included from         ^../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.hIn file included from :s2/s2shapeutil_coding.cc28::
28In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2lax_polygon_shape.h27::
36In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2polygon.h23::
29In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_map.h67::
45In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/raw_hash_map.h::29184:
:In file included from 3/usr/local/clang/include/absl/strings/cord.h:: 94:
warning: In file included from 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260  :18443 | :   warning: ABtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L_I N1260T | E R N A Lb_oXo(li n(saebrstl_:o:rt_yapses_iigdne,n tiintsye<rTt>_:o:rt_yapses:i:g*n _aibmspll_,n ocnonnusltl& ,m ectohnosdt)&(,) 
t      r| u                                          ^e
,
/usr/local/clang/include/absl/base/nullability.h      :| 241  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
22:   note: 185expanded from macro 'absl_nonnull' | 
     241  |  # d e f i n e   a b s l _ ntornuneu,l l. f_iNrosntn,u lclo
n      s| t                     ^_
iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this)))In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.ccA:B18S:
LIn file included from _../src/s2/s2shapeutil_visit_crossing_edge_pairs.hA:T23T:
RIn file included from I../src/s2/s2crossing_edge_query.hB:U31T:
EIn file included from _../src/s2/s2padded_cell.hL:I23F:
EIn file included from T../src/s2/s2cell_id.hI:M43E:
_In file included from B../src/s2/s1angle.hO:U28N:
DIn file included from  ../src/s2/s2point.h{: 27 :
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 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h :   94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h :31In file included from :
s2/s2text_format.cc/usr/local/clang/include/absl/synchronization/mutex.h::In file included from 161279:
:s2/util/coding/varint.ccIn file included from 35:../src/s2/s2text_format.h:24: :
34warning: In file included from :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/base/logging.hIn file included from 
:../src/s2/mutable_s2shape_index.h21::
30In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from : /usr/local/clang/include/absl/container/btree_map.h371279::
 | 66In file included from v:
/usr/local/clang/include/absl/log/internal/check_impl.hoIn file included from :i/usr/local/clang/include/absl/container/internal/btree.hd21: :
70RIn file included from :
e/usr/local/clang/include/absl/log/internal/check_op.hgIn file included from i:s/usr/local/clang/include/absl/container/internal/layout.h41t::
e198In file included from r:
M/usr/local/clang/include/absl/log/internal/strip.hIn file included from u:t/usr/local/clang/include/absl/strings/str_cat.h26e:x:
116P:
/usr/local/clang/include/absl/log/internal/log_message.hrIn file included from :o/usr/local/clang/include/absl/strings/internal/stringify_sink.h398f::i23l11e:
r:(/usr/local/clang/include/absl/strings/numbers.h v:owarning: i199type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]d: 
(5*:a b  warning: s398'diagnose_if' is a clang extension [-Wgcc-compat]l | _
 n o n   n199vu | lol  i d f*n ) (AaiBnbtSs6L4l___tn IuwNalTiltEaR_bcNlyAceLl e_csN)oE)n;EsD
t_      &M| I                                   ^Nv_
)S;I
Z/usr/local/clang/include/absl/base/nullability.h      E:| (241          ^b:u
f22f:e rnote: ,expanded from macro 'absl_nonnull' 
/usr/local/clang/include/absl/base/nullability.hk:F257a  :s24123t | :T#o dBnote: euexpanded from macro 'absl_nullable'ff
ifnee  r 257Sa | i#zbdseel)f_;ni
on      en| n u    ^la
lb s_/usr/local/clang/include/absl/base/macros.hlN:o_n251nn:uu18lll:l
 a      note: b| expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'                     ^l

e   _251N | u l l_a_baltet
r      i| b                      ^u
te__((diagnose_if(__builtin_obIn file included from js2/s2shapeutil_visit_crossing_edge_pairs.cce:c18t:
_In file included from s../src/s2/s2shapeutil_visit_crossing_edge_pairs.hi:z23e:
(In file included from O../src/s2/s2crossing_edge_query.hb:In file included from j31,s2/util/coding/varint.cc :
:0In file included from 24)../src/s2/s2padded_cell.h :
<:In file included from  23../src/s2/base/logging.hN:
:,In file included from  21../src/s2/s2cell_id.h\:

:In file included from       43/usr/local/clang/include/absl/log/check.h| :
:                 ^In file included from 37
../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41../src/s2/s2coder.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26/usr/local/clang/include/absl/status/status.h:
:67/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 400In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:s2/s2text_format.cc:17:29:16:
 :
In file included from In file included from warning: /usr/local/clang/include/absl/strings/cord.h../src/s2/s2text_format.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]::
9434:
:
In file included from   In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h400../src/s2/mutable_s2shape_index.h: | :31 30:
 :
/usr/local/clang/include/absl/synchronization/mutex.h In file included from : /usr/local/clang/include/absl/container/btree_map.h1293c::o6633n:
:sIn file included from t  /usr/local/clang/include/absl/container/internal/btree.hwarning: v:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o70
i:
 dIn file included from 1293*/usr/local/clang/include/absl/container/internal/layout.h |  :va198bos:
li_In file included from dn /usr/local/clang/include/absl/strings/str_cat.hRu:le116gl:
aibIn file included from sl/usr/local/clang/include/absl/strings/internal/stringify_sink.het:e r23cMo:
nu/usr/local/clang/include/absl/strings/numbers.hstt:e&200x :vT)7r;:a
c e      warning: r| type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                ^(
v
oid/usr/local/clang/include/absl/base/nullability.h   :200(257 | *:ac23hb:sal _rnote: n*expanded from macro 'absl_nullable'o n
anbu  sll257l_ |  nf#no)dn(enfcuiolnnels  atFb acsslhta_Inrn*utlT loaaBbbulsfle_f n_eNourlnl(nauublllei nm
ts      g3,| 2
                      ^_      
t|                                  ^n
, /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli noeu ta_bsstlr_)n
o      n| n      ^u
ll /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                      ^  
241 | #defIn file included from is2/s2shapeutil_visit_crossing_edge_pairs.ccn:e18 :
aIn file included from b../src/s2/s2shapeutil_visit_crossing_edge_pairs.hs:l23_:
nIn file included from o../src/s2/s2crossing_edge_query.hn:n31u:
lIn file included from l../src/s2/s2padded_cell.h :_23N:
oIn file included from n../src/s2/s2cell_id.hn:u43l:
lIn file included from 
../src/s2/s1angle.h      :| 28                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from In file included from s2/s2text_format.cc/usr/local/clang/include/absl/status/internal/status_internal.h::1629:
:
In file included from In file included from ../src/s2/s2text_format.h/usr/local/clang/include/absl/strings/cord.h::3494:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::3031:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/btree_map.h::129366::
62In file included from :/usr/local/clang/include/absl/container/internal/btree.h :70warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from  /usr/local/clang/include/absl/strings/str_cat.h1293: | 116v:
oIn file included from i/usr/local/clang/include/absl/strings/internal/stringify_sink.hd: 23R:
e/usr/local/clang/include/absl/strings/numbers.hg:i200s:t54e:r Mwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
exTr  a200c | ecrh(avro*i da b(s*la_bnsoln_nnuolnln uFlals tfInn)t(TcooBnusftf ecrh(auri*n ta3b2s_lt_ nno,n ncuhlalr *m sagb,s
l      _| n                                                             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22o:u tnote: _expanded from macro 'absl_nonnull's
tr  )241
 |       #| d                                                     ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
In file included from l      _s2/util/coding/varint.cc| n                     ^:o
n24n:
uIn file included from l../src/s2/base/logging.hl: 21_:
NIn file included from In file included from o/usr/local/clang/include/absl/log/check.hs2/s2shapeutil_visit_crossing_edge_pairs.ccn::n3718u:
:
lIn file included from In file included from l/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
::      2123| :
:
                     ^In file included from In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2crossing_edge_query.h::4131:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h../src/s2/s2padded_cell.h::2623:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2cell_id.h::42543::
31In file included from :../src/s2/s1angle.h :28warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h  :42523 | :
 In file included from  /usr/local/clang/include/absl/status/status.hL:o67g:
MIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hs:s29a:
gIn file included from e/usr/local/clang/include/absl/strings/cord.hFIn file included from :as2/s2text_format.cct94:a:
l16In file included from (:
c/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from o:n../src/s2/s2text_format.h31s:t:
 34/usr/local/clang/include/absl/synchronization/mutex.hc:
h:aIn file included from r1294*../src/s2/mutable_s2shape_index.h: :a6230b:s:
 lIn file included from _warning: /usr/local/clang/include/absl/container/btree_map.hntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:o
66n:
nIn file included from u l/usr/local/clang/include/absl/container/internal/btree.h1294l:  | 70 f :
 In file included from i /usr/local/clang/include/absl/container/internal/layout.hl : e198 , :
  In file included from  i/usr/local/clang/include/absl/strings/str_cat.hn :t  116l i n :
e )In file included from   /usr/local/clang/include/absl/strings/internal/stringify_sink.h A :B 23S L:
 _ A/usr/local/clang/include/absl/strings/numbers.h T: T 201R I B: U5 T: E  _ C Owarning:  L 'diagnose_if' is a clang extension [-Wgcc-compat]D ;

        |                                   ^201 
 |    /usr/local/clang/include/absl/base/nullability.h  :   241  A B:Sc22Lo:_n Isnote: tNexpanded from macro 'absl_nonnull'T 
vEoRi  dN*241 Aa | L#bd_esfNilE_nEenDo _anMnbIsuNll__lSn oIoZbnEnj(,uol
lu       t_| _N                                                             ^so
ntn/usr/local/clang/include/absl/base/nullability.hur:,l241 l:k
22F      :a|                       ^s
note: texpanded from macro 'absl_nonnull'T
oB  u241f | f#edreSfiiznee) ;a
b      s| l    ^_
no/usr/local/clang/include/absl/base/macros.hn:n251u:l18l:  In file included from _note: s2/util/coding/varint.ccNexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'o:
n24n:
u  In file included from l251../src/s2/base/logging.hl | 
:       21 | :
_                     ^In file included from _
/usr/local/clang/include/absl/log/check.ha:t37t:
rIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hb:u21t:
eIn file included from _/usr/local/clang/include/absl/log/internal/check_op.h_:(41(:
dIn file included from i/usr/local/clang/include/absl/log/internal/strip.ha:g26n:
o/usr/local/clang/include/absl/log/internal/log_message.hs:e426_:i31f:(In file included from  _s2/s2shapeutil_visit_crossing_edge_pairs.ccwarning: _:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b18
u:
iIn file included from l../src/s2/s2shapeutil_visit_crossing_edge_pairs.h  t:426i23 | n:
 _In file included from o ../src/s2/s2crossing_edge_query.hLb:ojg31eM:
ceIn file included from ts_s../src/s2/s2padded_cell.hsaig:ezF23ea:
(tIn file included from aOl../src/s2/s2cell_id.hb(:jc43,o:
 nIn file included from 0s../src/s2/s1angle.h)t:  28<c:
h aIn file included from Nr../src/s2/s2point.h,*:  a27b\s:

lIn file included from _      ../src/s2/s2coder.hn| o                 ^:n
n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h :f67i:
lIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h,: 29In file included from i:
ns2/s2text_format.ccIn file included from t: /usr/local/clang/include/absl/strings/cord.h16l:i:
94nIn file included from e:
../src/s2/s2text_format.h,In file included from 
:/usr/local/clang/include/absl/strings/internal/cordz_info.h      34:| :
                              ^31In file included from 
:
../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/synchronization/mutex.h:/usr/local/clang/include/absl/base/nullability.h:30:1309:
241:In file included from :35/usr/local/clang/include/absl/container/btree_map.h22::: 66 :
warning: In file included from note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree.hexpanded from macro 'absl_nonnull'
:
70:
In file included from    /usr/local/clang/include/absl/container/internal/layout.h1309241: |  | 198v#:
odiIn file included from de /usr/local/clang/include/absl/strings/str_cat.hRf:ien116eg:
i In file included from sa/usr/local/clang/include/absl/strings/internal/stringify_sink.htb:es23lr:
_C/usr/local/clang/include/absl/strings/numbers.hon:onn202nd:Vu7al:lr  T_warning: rNtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]oa
ncneur  l(202lv | 
oc      hi| da                     ^ r(
** aabbssll__nIn file included from nos2/util/coding/varint.ccon:nn24unl:
ulIn file included from l ../src/s2/base/logging.hfl: nF)a21(s
:
t      In file included from I| /usr/local/clang/include/absl/log/check.hn                                  ^:t
T37o:
/usr/local/clang/include/absl/base/nullability.hBIn file included from :u/usr/local/clang/include/absl/log/internal/check_impl.h241f::f2122e:
:rIn file included from  (/usr/local/clang/include/absl/log/internal/check_op.hnote: i:expanded from macro 'absl_nonnull'n41
t:
6In file included from   4/usr/local/clang/include/absl/log/internal/strip.h241_: | t26# :
id/usr/local/clang/include/absl/log/internal/log_message.h,e:f 427icn:eh31a :arb*s  lwarning: _atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nbo
snln_  un427lol |  n_ Nn ounl n l u l lb
 u       f | f                      ^e 
r ) 
        In file included from |        ^s2/s2shapeutil_visit_crossing_edge_pairs.cc 
 :c18/usr/local/clang/include/absl/base/nullability.ho:
n:sIn file included from t241 ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hc::h22a23:r:
* In file included from  ../src/s2/s2crossing_edge_query.hnote: a:expanded from macro 'absl_nonnull'b31s
l:
_In file included from   ../src/s2/s2padded_cell.hn241:o | 23n#:
nduelIn file included from fl../src/s2/s2cell_id.h if:na43ei :
alIn file included from bu../src/s2/s1angle.hsr:le28__:
nmIn file included from os../src/s2/s2point.hng:n)27u :
lAIn file included from lB../src/s2/s2coder.hS L:__23NAoTnTnRuIlBlU
T      E| _                     ^C
OLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22      \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/s2text_format.cc
:16:
In file included from ../src/s2/s2text_format.h:34:
 In file included from 1310../src/s2/mutable_s2shape_index.h | : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hc:o66n:
sIn file included from t/usr/local/clang/include/absl/container/internal/btree.h :c70h:
:aIn file included from r/usr/local/clang/include/absl/container/internal/layout.h *: 198note: a:
expanded from macro 'absl_nonnull'bIn file included from 
s/usr/local/clang/include/absl/strings/str_cat.hl:_116  n:
241oIn file included from  | n/usr/local/clang/include/absl/strings/internal/stringify_sink.h#n:du23el:
fl/usr/local/clang/include/absl/strings/numbers.hi :nme202s :agb53,s: l _cwarning: notype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]onn
sntu lv  lo202i  | dc_*h Naarobn*s nlau_blsln
lo_      nn| no                     ^nun
ullll  cFva)s)t;I
n      t| T                ^o
Buff/usr/local/clang/include/absl/base/nullability.he:r241(:i22n:t 6note: 4expanded from macro 'absl_nonnull'_
t   i241, |  #cdheafri*n ea basbls_ln_onnonnunlull lb u_fNfoenrn)u
l      l| 
                                                    ^      
|                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bIn file included from s2/s2shapeutil_visit_crossing_edge_pairs.ccss2/util/coding/varint.cc:l:_18n:
o24In file included from n:
../src/s2/s2shapeutil_visit_crossing_edge_pairs.hnIn file included from :u../src/s2/base/logging.h23l::
l21In file included from  :
../src/s2/s2crossing_edge_query.h_In file included from :N/usr/local/clang/include/absl/log/check.ho31:n:
n37uIn file included from l:
../src/s2/s2padded_cell.hlIn file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h23      ::
| 21In file included from                      ^:
../src/s2/s2cell_id.h
In file included from :/usr/local/clang/include/absl/log/internal/check_op.h43::
41In file included from :
../src/s2/s1angle.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h28::
26In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/log/internal/log_message.h27::
436In file included from :../src/s2/s2coder.h36::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :43629 | :
 In file included from  /usr/local/clang/include/absl/strings/cord.hL:o94g:
MIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hs:s31a:
g/usr/local/clang/include/absl/synchronization/mutex.he:D1310e:b47u:g In file included from Fwarning: as2/s2text_format.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t:a
l16(:
cIn file included from  o../src/s2/s2text_format.h1310n: | s34 t:
  In file included from  c../src/s2/mutable_s2shape_index.h h:ca30or:
n*In file included from s /usr/local/clang/include/absl/container/btree_map.hta: b66cs:
hlIn file included from a_/usr/local/clang/include/absl/container/internal/btree.hrn:*o70 n:
anIn file included from bu/usr/local/clang/include/absl/container/internal/layout.hsl:ll198_ :
nfIn file included from oi/usr/local/clang/include/absl/strings/str_cat.hnl:ne116u,:
l
In file included from l      /usr/local/clang/include/absl/strings/internal/stringify_sink.h | :m                                   ^23s
:
g/usr/local/clang/include/absl/strings/numbers.h,/usr/local/clang/include/absl/base/nullability.h: :203c241:o:5n22:s: t warning:  note: 'diagnose_if' is a clang extension [-Wgcc-compat]vexpanded from macro 'absl_nonnull'
o
id    *241203  |  | a# bd se lf i_AnnBeoS nLanb_suIllNl_T nEcoRvnN)nA)uL;l_
lN       _EN| oE                                              ^Dn
n_uM/usr/local/clang/include/absl/base/nullability.hIl:Nl241
_:      S22| I                     ^:Z
 Enote: (expanded from macro 'absl_nonnull'b
uf  f241e | r#,d ekfFianset TaobBsulf_fneornSniuzlel) ;_
N      o| n    ^n
ul/usr/local/clang/include/absl/base/macros.hl:
251      :| 18                     ^:
 note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribuIn file included from ts2/util/coding/varint.cce:_24_:
(In file included from (../src/s2/base/logging.hd:i21a:
gIn file included from n/usr/local/clang/include/absl/log/check.ho:s37e:
_In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hf:(21_:
_In file included from b/usr/local/clang/include/absl/log/internal/check_op.hu:i41l:
tIn file included from i/usr/local/clang/include/absl/log/internal/strip.hn:_26o:
b/usr/local/clang/include/absl/log/internal/log_message.hj:e446c:t43_:s iwarning: ztype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
(Ob  j446, |   0 )L o<g MNe,s s\a
g      e| Q                 ^u
ietlyDebugFatal(In file included from cs2/s2text_format.cco:n16s:
tIn file included from  ../src/s2/s2text_format.hc:h34a:
rIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l70l:
 In file included from f/usr/local/clang/include/absl/container/internal/layout.hi:l198e:
,In file included from 
/usr/local/clang/include/absl/strings/str_cat.h      :| 116                                          ^:

In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/strings/numbers.h241::20422::7 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #204d | ecfhianre*  aabbssll__nnoonnnnuullll  _FNaosntnIunltlT
o      B| u                     ^f
fer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/util/coding/varint.cca:b24s:
lIn file included from _../src/s2/base/logging.hn:o21n:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_op.hl:
41      :
| In file included from                      ^/usr/local/clang/include/absl/log/internal/strip.h
:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2text_format.cc:  16454:
 | In file included from  ../src/s2/s2text_format.h :L34o:
gIn file included from M../src/s2/mutable_s2shape_index.he:s30s:
aIn file included from g/usr/local/clang/include/absl/container/btree_map.he:Q66u:
iIn file included from e/usr/local/clang/include/absl/container/internal/btree.ht:l70y:
FIn file included from a/usr/local/clang/include/absl/container/internal/layout.ht:a198l:
(In file included from c/usr/local/clang/include/absl/strings/str_cat.ho:n116s:
tIn file included from  /usr/local/clang/include/absl/strings/internal/stringify_sink.hc:h23a:
r/usr/local/clang/include/absl/strings/numbers.h*: 204a:b54s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnu  l204l |  cfhialre*, 
a      b| s                                     ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: Fexpanded from macro 'absl_nonnull'a
st  I241n | t#TdoeBfuifnfee ra(busiln_tn6o4n_ntu lil,  _cNhoanrn*u lalb
s      l| _                     ^n
onnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/util/coding/varint.cc
:24:
  In file included from 241../src/s2/base/logging.h | :#21d:
eIn file included from f/usr/local/clang/include/absl/log/check.hi:n37e:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_op.ho:n41n:
uIn file included from l/usr/local/clang/include/absl/log/internal/strip.hl: 26_:
N/usr/local/clang/include/absl/log/internal/log_message.ho:n456n:u38l:l 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                     ^

  456 |   LogMessageQuietlyFatal(const char* absl_nonnuIn file included from ls2/s2text_format.ccl: 16f:
iIn file included from l../src/s2/s2text_format.he:,34 :
iIn file included from n../src/s2/mutable_s2shape_index.ht: 30l:
iIn file included from n/usr/local/clang/include/absl/container/btree_map.he:,66
:
      In file included from | /usr/local/clang/include/absl/container/internal/btree.h                                     ^:
70:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/layout.h::241198::
22In file included from :/usr/local/clang/include/absl/strings/str_cat.h :116note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:23  :
241 | /usr/local/clang/include/absl/strings/numbers.h#:d205e:f5i:n ewarning:  'diagnose_if' is a clang extension [-Wgcc-compat]a
bsl_  n205o | n n u l lA B_SNLo_nInNuTlElR
N      A| L                     ^_
NEED_MIIn file included from Ns2/util/coding/varint.cc_:S24I:
ZIn file included from E../src/s2/base/logging.h(:b21u:
fIn file included from f/usr/local/clang/include/absl/log/check.he:r37,:
 In file included from k/usr/local/clang/include/absl/log/internal/check_impl.hF:a21s:
tIn file included from T/usr/local/clang/include/absl/log/internal/check_op.ho:B41u:
fIn file included from f/usr/local/clang/include/absl/log/internal/strip.he:r26S:
i/usr/local/clang/include/absl/log/internal/log_message.hz:e457):;38
:       | warning:     ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/macros.h:  251457: | 18 :   note:  expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE' 
      251  |      _ _ a t t r i b u t e _ _c(o(ndsita gcnhoasre*_ iafb(s_l__bnuoinlntuilnl_ ofbajielcutr_es_imzseg()O
b      j| ,                                     ^ 
0)/usr/local/clang/include/absl/base/nullability.h :<241 :N22,:  \note: 
expanded from macro 'absl_nonnull'      
|                  ^  
241 | #define abslIn file included from _s2/s2text_format.ccn:o16n:
nIn file included from u../src/s2/s2text_format.hl:l34 :
_In file included from N../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl:
66      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/btree.h
:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absIn file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                In file included from  s2/util/coding/varint.cc : 24f:
aIn file included from l../src/s2/base/logging.hs:e21,:
 In file included from ./usr/local/clang/include/absl/log/check.hf:i37r:
sIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.h,: 21c:
on/usr/local/clang/include/absl/log/internal/check_op.hs:t180_:i42t:e rwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
or AB  S180L | _AIBNSTLE_RANTATLR_ICBOUMTMEA_)P;U
R      E| _                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~F
UNC/usr/local/clang/include/absl/container/internal/raw_hash_map.hT:I133O:N47:  cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3s:tl c_hnaorn*n ualbls lb_unfofnenru)l
l       | M                                                   ^a
keCh/usr/local/clang/include/absl/base/nullability.he:c241k:F22a:i lnote: Sexpanded from macro 'absl_nonnull't
rin  g241( | 
#      d| e                                         ^f
ine /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ull   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: In file included from warning: s2/s2text_format.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]16
:
In file included from ../src/s2/s2text_format.h:34:
  In file included from 181../src/s2/mutable_s2shape_index.h | : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h:c66o:
nIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht: 70a:
bIn file included from s/usr/local/clang/include/absl/container/internal/layout.hl::198::
SIn file included from t/usr/local/clang/include/absl/strings/str_cat.ha:t116u:
sIn file included from */usr/local/clang/include/absl/strings/internal/stringify_sink.h :a23b:
s/usr/local/clang/include/absl/strings/numbers.hl:_207n:o5n:n uwarning: l'diagnose_if' is a clang extension [-Wgcc-compat]l
 st  a207t | u s ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sNlE_EnDo_nMnIuNl_lS IpZrEe(fbiuxf)f;er,
       k| F                        ^a
st/usr/local/clang/include/absl/base/nullability.hT:o241B:u22f:f enote: rexpanded from macro 'absl_nonnull'1
28  S241i | z#ed)e;f
i      n| e    ^ 
abs/usr/local/clang/include/absl/base/macros.hl:_251n:o18n:n unote: lexpanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'l
 _N  o251n | n u l_l_
a      t| t                     ^r
ibute__((diaIn file included from gs2/util/coding/varint.ccn:o24s:
eIn file included from _../src/s2/base/logging.hi:f21(:
_In file included from _/usr/local/clang/include/absl/log/check.hb:u37i:
lIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.hi:n21_:
o/usr/local/clang/include/absl/log/internal/check_op.hb:j181e:c58t:_ swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]z
e(O  b181j | ,   0 )  c<o nNs,t  \a
b      s| l                 ^:
:Status* absl_nonIn file included from ns2/s2text_format.ccu:l16l:
 In file included from s../src/s2/s2text_format.ht:a34t:
uIn file included from s../src/s2/mutable_s2shape_index.h,: 30c:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hs:t66 :
cIn file included from h/usr/local/clang/include/absl/container/internal/btree.ha:r70*:
 In file included from a/usr/local/clang/include/absl/container/internal/layout.hb:s198l:
_In file included from n/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl: 23p:
r/usr/local/clang/include/absl/strings/numbers.he:f208i:x7):; 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                         ^

/usr/local/clang/include/absl/base/nullability.h:  241208: | 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bFsals_tnIonntnTuolBlu f_fNeorn(nuuilnlt
1      2| 8                     ^ 
i, char* absl_nonnull buffer)In file included from 
s2/util/coding/varint.cc      :| 24      ^:

In file included from ../src/s2/base/logging.h:/usr/local/clang/include/absl/base/nullability.h21::
241In file included from :/usr/local/clang/include/absl/log/check.h22::37 :
In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 189#:d28e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 abs  l189_ | nionnlniunlel  c_oNnosntn ualbls
l      :| :                     ^S
tatus* absl_In file included from ns2/s2text_format.cco:n16n:
uIn file included from l../src/s2/s2text_format.hl: 34A:
sIn file included from S../src/s2/mutable_s2shape_index.ht:a30t:
uIn file included from s/usr/local/clang/include/absl/container/btree_map.h(:c66o:
nIn file included from s/usr/local/clang/include/absl/container/internal/btree.ht: 70a:
bIn file included from s/usr/local/clang/include/absl/container/internal/layout.hl::198::
SIn file included from t/usr/local/clang/include/absl/strings/str_cat.ha:t116u:
sIn file included from &/usr/local/clang/include/absl/strings/internal/stringify_sink.h :s23):
 /usr/local/clang/include/absl/strings/numbers.h{:
208      :| 53                           ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   208note:  | expanded from macro 'absl_nonnull'c
ha  r241* |  #adbesfli_nneo nanbuslll_ nFoansntuIlnlt T_oNBounfnfuelrl(
u      i| n                     ^t
128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/util/coding/varint.cc :a24b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l193l:
21      :|                       ^
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStaIn file included from ts2/s2text_format.ccu:s16(:
cIn file included from o../src/s2/s2text_format.hn:s34t:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
:In file included from :/usr/local/clang/include/absl/container/btree_map.hS:t66a:
tIn file included from u/usr/local/clang/include/absl/container/internal/btree.hs:O70r:
<In file included from T/usr/local/clang/include/absl/container/internal/layout.h>:&198 :
sIn file included from )/usr/local/clang/include/absl/strings/str_cat.h :{116
:
      In file included from | /usr/local/clang/include/absl/strings/internal/stringify_sink.h                    ^:
23:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/numbers.h::241209::225::  note: warning: expanded from macro 'absl_nonnull''diagnose_if' is a clang extension [-Wgcc-compat]

  241 |   #209d | e f i n eA BaSbLs_lI_NnToEnRnNuAlLl_ N_ENEoDn_nMuIlNl_
S      I| Z                     ^E
(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __atIn file included from ts2/util/coding/varint.ccr:i24b:
uIn file included from t../src/s2/base/logging.he:_21_:
(In file included from (/usr/local/clang/include/absl/log/check.hd:i37a:
gIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:s21e:
_/usr/local/clang/include/absl/log/internal/check_op.hi:f202(:_46_:b uwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
tin_  o202b | j e cetx_psliizcei(tO bCjh,e c0k)O p<M eNs,s a\g
e      B| u                 ^i
lder(const char* aIn file included from bs2/s2text_format.ccs:l16_:
nIn file included from o../src/s2/s2text_format.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :e30x:
pIn file included from r/usr/local/clang/include/absl/container/btree_map.h:t66e:
xIn file included from t/usr/local/clang/include/absl/container/internal/btree.h):;70
:
      In file included from | /usr/local/clang/include/absl/container/internal/layout.h                                             ^:
198:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/str_cat.h::241116::
22In file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h :23note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/numbers.h
:215:  7241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fin  e215  | acbhsalr_*n oanbnsull_ln o_nNnounlnlu lFla
s      t| I                     ^n
tToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/util/coding/varint.ccn:u24l:
lIn file included from  ../src/s2/base/logging.h_:Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diag warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
nose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2text_format.cc
:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NulIn file included from ls2/s2text_format.cca:b16l:
eIn file included from 
../src/s2/s2text_format.h      :| 34                      ^:

In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70In file included from :
s2/util/coding/varint.ccIn file included from :/usr/local/clang/include/absl/container/internal/layout.h24::
198In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/str_cat.h21::
116In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/internal/stringify_sink.h37::
23In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/strings/numbers.h21::
303/usr/local/clang/include/absl/log/internal/check_op.h::60277:: 50:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
    303277 |  | i n l i n e   s i z e _ t   F a s t H e x T o B u f f e r Z e r o P a d 1 6c(ounisntt 6v4o_itd *v aalb,s lc_hnaurl*l aabblsel _vnaolnuneu)l;l
       o| u                                                 ^t
) /usr/local/clang/include/absl/base/nullability.h{:
257      :| 23                                                           ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nullable':
241:22  :257  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en ualblsalb_lneo n_nNuullll a_bNloen
n      u| l                      ^l

      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostIn file included from rs2/s2shapeutil_visit_crossing_edge_pairs.cce:a18m:
&In file included from ,../src/s2/s2shapeutil_visit_crossing_edge_pairs.h :s23t:
dIn file included from :../src/s2/s2crossing_edge_query.h::n31u:
lIn file included from l../src/s2/s2padded_cell.hp:t23r:
_In file included from t../src/s2/s2cell_id.h):;43
:
      In file included from | ../src/s2/s1angle.h            ^:
28:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::25727::
23In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/status/status.h:67  :
257In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h#:d29e:
fi/usr/local/clang/include/absl/strings/cord.hn:e109 :a53b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ullab  l109e |  v_oNiudl lCaobplyeC
o      r| d                      ^T
oString(const Cord& src, std::string* absl_nonnull dst);
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/util/coding/varint.ccl:l24
:
      In file included from | ../src/s2/base/logging.h                     ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const cIn file included from hs2/s2shapeutil_visit_crossing_edge_pairs.cca:r18*:
 In file included from a../src/s2/s2shapeutil_visit_crossing_edge_pairs.hb:s23l:
_In file included from n../src/s2/s2crossing_edge_query.ho:n31n:
uIn file included from l../src/s2/s2padded_cell.hl: 23o:
pIn file included from e../src/s2/s2cell_id.hr:a43t:
oIn file included from r../src/s2/s1angle.h<:<28(:
sIn file included from t../src/s2/s2point.hd::27::
bIn file included from a../src/s2/s2coder.hs:i23c:
_In file included from o/usr/local/clang/include/absl/status/status.hs:t67r:
eIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hm:<29c:
h/usr/local/clang/include/absl/strings/cord.ha:r110,: 55T:r awarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
s>&,  
110       | | v            ^
oid/usr/local/clang/include/absl/base/nullability.h :A241p:p22e:n dnote: Cexpanded from macro 'absl_nonnull'o
  241In file included from  | s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
rdToS#trind/usr/local/clang/include/absl/container/internal/raw_hash_map.hge:(f196cio:nn3es: t a bwarning: Cspassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]lo
r_dn&o   ns196nr | uc l ,l A sB_tSNdL:o:_nsIntNruiTnlgE*l R
aNb      As| Ll                     ^__
nXo(ninnuslelr td_sotr)_;a
s      s| i                                                      ^g
n, in/usr/local/clang/include/absl/base/nullability.hs:e241r:In file included from t22s2/util/coding/varint.cc_::o r24note: _:
expanded from macro 'absl_nonnull'aIn file included from s
../src/s2/base/logging.hs:i21  g:
241nIn file included from _ | /usr/local/clang/include/absl/log/check.hi#:mdpel37f,:
i nIn file included from e&/usr/local/clang/include/absl/log/internal/check_impl.h& :a,21b s:
cl/usr/local/clang/include/absl/log/internal/check_op.h_on:no293sn:tn&49u,l: l f warning: _atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Nlo
nsneu,l
  l      293
|  |   ^       
|                       ^ 
/usr/local/clang/include/absl/container/internal/raw_hash_map.h : 133 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      133  |                   A B S L _ I N T E R N AcLo_nAsTtT RcIhBaUrT*E _aCbAsPlT_UnRoEnDn_uBlYl()t;h
i      s| )                                                ^)
,  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s\l
_      n| o                                                   ^n
nul/usr/local/clang/include/absl/container/internal/common.hl: 32_:N9o:n nnote: umacro 'ABSL_INTERNAL_IF_false' defined herel
l
         | 32                     ^ | 
#define ABSL_INTERNAL_IF_false(if_sIn file included from as2/util/coding/varint.cct:i24s:
fIn file included from i../src/s2/base/logging.he:d21,:
 In file included from ./usr/local/clang/include/absl/log/check.h.:.37):
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.h_:V21A:
_/usr/local/clang/include/absl/log/internal/check_op.hA:R295G:S20_:_ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]        ^

  295 | const signIn file included from es2/s2shapeutil_coding.ccd: 28c:
hIn file included from a../src/s2/s2lax_polygon_shape.hr:*36 :
aIn file included from b../src/s2/s2polygon.hs:l29_:
nIn file included from o/usr/local/clang/include/absl/container/flat_hash_map.hn:n45u:
l/usr/local/clang/include/absl/container/internal/raw_hash_map.hl: 196o:p3e:r awarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
r<<  (196s | t d :A:BbSaLs_iIcN_ToEsRtNrAeLa_mX<(cihnasre,r tT_roari_tass>s&i,g
n      ,|                     ^i
ns/usr/local/clang/include/absl/base/nullability.he:r241t:_22o:r _note: aexpanded from macro 'absl_nonnull's
si  g241n | _#idmepfli,n e& &a,b sclo_nnsotn&n,u lfla l_sNeo,n
n      u| l  ^l

      /usr/local/clang/include/absl/container/internal/raw_hash_map.h| :                     ^135
:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |         In file included from  s2/util/coding/varint.cc :t24h:
iIn file included from s../src/s2/base/logging.h):)21):
 In file included from A/usr/local/clang/include/absl/log/check.hB:S37L:
_In file included from A/usr/local/clang/include/absl/log/internal/check_impl.hT:T21R:
I/usr/local/clang/include/absl/log/internal/check_op.hB:U296T:E63_:L Iwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
TIME  _296B | O U N D   {                                                            \ 
        |                 ^ 
  /usr/local/clang/include/absl/container/internal/common.h :c32o:n9s:t  note: smacro 'ABSL_INTERNAL_IF_false' defined herei
gne   d32  | c#hdaerf*i naeb sAlB_SnLo_nInNuTlElR)N;A
L      _| I                                                              ^F
_f/usr/local/clang/include/absl/base/nullability.ha:l241s:e22(:i fnote: _expanded from macro 'absl_nonnull's
at  i241s | f#ideedf,i n.e. .a)b s_l__VnAo_nAnRuGlSl_ __
N      o| n        ^n
ull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hs2/util/coding/varint.cc::2324:
:
In file included from In file included from ../src/s2/s2crossing_edge_query.h../src/s2/base/logging.h::3121:
:
In file included from In file included from ../src/s2/s2padded_cell.h/usr/local/clang/include/absl/log/check.h::2337:
:
In file included from In file included from ../src/s2/s2cell_id.h/usr/local/clang/include/absl/log/internal/check_impl.h::4321:
:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/log/internal/check_op.h::28298:
:In file included from 22../src/s2/s2point.h:: 27:
warning: In file included from ../src/s2/s2coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
298In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
s/usr/local/clang/include/absl/strings/cord.ht: 425u:n62s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
d ch  a425r | *   afbrsile_nndo nvnouildl  CooppeyrCaotrodrT<o<S(tsrtidn:g:(bcaosnisct_ oCsotrrde&a ms<rcch,a rs,t dT:r:asittrsi>n&g,*In file included from 
 s2/s2shapeutil_coding.cca      b:s| l28                     ^_:

nIn file included from o../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/base/nullability.hn::n36241u:
l:lIn file included from 22 ../src/s2/s2polygon.h:d:s t29note: ):
expanded from macro 'absl_nonnull';In file included from 

/usr/local/clang/include/absl/container/flat_hash_map.h      :  | 45241                                                             ^:
 | 
/usr/local/clang/include/absl/container/internal/raw_hash_map.h#:d198/usr/local/clang/include/absl/base/nullability.he::f3241i::n 22e:warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]anote: 
bexpanded from macro 'absl_nonnull's
l  _  198n241 | o  | n #ndAuBelfSliL n__eI NaNoTbnsEnlRu_NlnAlLo
n_n      uXl| l(                     ^ i_
nNsoenrntu_lolr
_      a| s                     ^s
ignIn file included from ,s2/util/coding/varint.cc :i24n:
sIn file included from e../src/s2/base/logging.hr:t21_:
oIn file included from r/usr/local/clang/include/absl/log/check.h_:a37s:
sIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hg:n21_:
iIn file included from /usr/local/clang/include/absl/log/internal/check_op.hms2/s2shapeutil_visit_crossing_edge_pairs.ccp:l:299,18: :
67&In file included from :&../src/s2/s2shapeutil_visit_crossing_edge_pairs.h ,:warning:  23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:

oIn file included from n../src/s2/s2crossing_edge_query.hs:  t31299&:
, |  In file included from  f../src/s2/s2padded_cell.h a: l s23 e:
 ,In file included from  
../src/s2/s2cell_id.h       : | 43   ^:
 
In file included from  ../src/s2/s1angle.h /usr/local/clang/include/absl/container/internal/raw_hash_map.h: :28 133:
 :In file included from  52../src/s2/s2point.h ::  27 :
note:  In file included from expanded from macro 'ABSL_INTERNAL_X' ../src/s2/s2coder.h
 : 23 :
   In file included from 133 /usr/local/clang/include/absl/status/status.h |  :   67  :
  In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h   :  29    :
 A/usr/local/clang/include/absl/strings/cord.h B : S437 L: _47 I :N  cTwarning: oEtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nRs
NtA  L437_ | A T T R I B U T E _ C A P T U R E D _ B Y ( t h i s ) ) ,          s t d : : s t r i n g *   a b s l _ n o n n\u
l      l|                                                     ^d
st/usr/local/clang/include/absl/container/internal/common.h):;32
:      9| :                                              ^ 
note: macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/base/nullability.h
:241:22   :32  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# dAeBfSiLn_eI NaTbEsRlN_AnLo_nInFu_lfla l_sNeo(ninfu_lsla
t      i| s                     ^f
ied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INIn file included from Ts2/s2shapeutil_visit_crossing_edge_pairs.ccE:R18N:
AIn file included from L../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:X23(:
iIn file included from n../src/s2/s2crossing_edge_query.hs:e31r:
tIn file included from _../src/s2/s2padded_cell.ho:r23_:
aIn file included from s../src/s2/s2cell_id.hs:i43g:
nIn file included from ,../src/s2/s1angle.h :i28n:
sIn file included from e../src/s2/s2point.hr:t27_:
oIn file included from r../src/s2/s2coder.h_:a23s:
sIn file included from i/usr/local/clang/include/absl/status/status.hg:n67_:
iIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.hp:l29,:
 /usr/local/clang/include/absl/strings/cord.h&:&480,: 39c:o nwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
&,   f480a | l s e , 
u      s| i  ^n
g /usr/local/clang/include/absl/container/internal/raw_hash_map.hp:o135i:n16t:e rnote:  expanded from macro 'ABSL_INTERNAL_X'=
 co  n135s | t   v a l u e _ t y pteh*i sa)b)s)l _AnBoSnLn_uAlTlT;R
I      B| U                                      ^T
E_/usr/local/clang/include/absl/base/nullability.hL:I241F:E22T:I Mnote: Eexpanded from macro 'absl_nonnull'_
BO  U241N | D# d{e f i n e   a b s l _ n o n n ull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using                \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   conste xpr ucnosnisgtn ecdh acrh*a ra*b salb_snlo_nnnounlnlu lflu)n;c
t      i| o                                                                  ^n
_name(/usr/local/clang/include/absl/base/nullability.h): 241c:o22n:s tnote:  expanded from macro 'absl_nonnull'n
oexc  e241p | t# d{e
f      i| n                        ^e
 a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241_ | N#odnenfuilnle
       a| b                     ^s
l_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16In file included from :
s2/util/coding/varint.ccIn file included from :../src/s2/s2text_format.h24::
34In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/mutable_s2shape_index.h21::
30In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h37::
66In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h21::
70:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/container/internal/layout.h323::19846:
:In file included from  /usr/local/clang/include/absl/strings/str_cat.h:warning: 116:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/strings/internal/stringify_sink.h:25:
/usr/local/clang/include/absl/types/source_location.h  :323165 | : 15 :f rwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
nd   v165o | i d  cAobnssltF ocrhmaart*F laubsshl(_Sntorninnuglilf yfSiilnek_*n aambes_l _=n o"n"n;u
l      l|                ^s
in/usr/local/clang/include/absl/base/nullability.hk:,241
:      22| :                                             ^ 
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/base/nullability.h:241  :24122 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^_
Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprteIn file included from xs2/s2shapeutil_visit_crossing_edge_pairs.cct:)18 :
{In file included from 
../src/s2/s2shapeutil_visit_crossing_edge_pairs.h      :| 23                                                       ^:

In file included from ../src/s2/s2crossing_edge_query.h:/usr/local/clang/include/absl/base/nullability.h31:
In file included from :../src/s2/s2padded_cell.h241::2322:
:In file included from  ../src/s2/s2cell_id.h:note: 43expanded from macro 'absl_nonnull':

In file included from ../src/s2/s1angle.h:  28241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :_655N:o39n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^  
655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28In file included from :
s2/util/coding/varint.ccIn file included from :../src/s2/s2point.h24::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/strings/cord.h451::6671::44 : warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  451   | 667A | B S Ls_tLaOtGi_cI NCToErRdN AALd_vDaEnFcIeNAEn_dMRAeKaEd_(CCHhEaCrKI_tOePr_aStToRrI*N Ga_bEsXlT_EnRoNn(nbuololl )i;t
,       | s^i
ze_/usr/local/clang/include/absl/log/internal/check_op.ht: 449n:_31b:y tnote: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
);
        449|  |                                            ^ 
 e/usr/local/clang/include/absl/base/nullability.hx:t241e:r22n:  tnote: eexpanded from macro 'absl_nonnull'm
pl  a241t | e# dceofnisnte  cahbasrl*_ naobnsnlu_lnlo n_nNuolnln uMlalk
e      C| h                     ^e
ckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shapeutil_visit_crossing_edge_pairs.cc241: | 18#:
dIn file included from e../src/s2/s2shapeutil_visit_crossing_edge_pairs.hf:i23n:
eIn file included from  ../src/s2/s2crossing_edge_query.ha:b31s:
lIn file included from _../src/s2/s2padded_cell.hn:o23n:
nIn file included from u../src/s2/s2cell_id.hl:l43 :
_In file included from N../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29In file included from :
s2/util/coding/varint.cc:/usr/local/clang/include/absl/strings/cord.h24::
674In file included from :../src/s2/base/logging.h37::21 :
In file included from warning: /usr/local/clang/include/absl/log/check.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21674:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 451s:t1a:t iwarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
vo/usr/local/clang/include/absl/log/internal/check_op.hi:d450 :A25d:v anote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'c
e(  C450h | a r I t e r axt,o rx*,  acbosnls_tn ocnhnaurl*l  aibts,l _snioznen_utl ln)_
b      y| t                        ^e
s)/usr/local/clang/include/absl/base/nullability.h;:
241      :| 22                                    ^:
 note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_SIn file included from Ts2/s2shapeutil_visit_crossing_edge_pairs.ccR:I18N:
GIn file included from _../src/s2/s2shapeutil_visit_crossing_edge_pairs.hE:X23T:
EIn file included from R../src/s2/s2crossing_edge_query.hN:(31i:
nIn file included from t../src/s2/s2padded_cell.h6:423_:
tIn file included from )../src/s2/s2cell_id.h;:
43      :
| In file included from ^../src/s2/s1angle.h
:28:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h449::2731:
:In file included from  ../src/s2/s2coder.h:note: 23expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':

In file included from /usr/local/clang/include/absl/status/status.h:67  :
449In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29e:
x/usr/local/clang/include/absl/strings/cord.ht:e730r:n36 :t ewarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
late   730c | o n s t  ecxhpalri*c iatb sClh_anroRnannuglel( cMoanksetC hCeocrkdIn file included from O*p s2/s2wedge_relations.ccSat:brs18il:
n_gIn file included from n(../src/s2/s2wedge_relations.ho n: n 24u\:
l
In file included from l       ../src/s2/s2point.h| c:                              ^o25
r:
/usr/local/clang/include/absl/base/nullability.hdIn file included from :)../src/s2/util/coding/coder.h241 :::3622 :
:cIn file included from  o../src/s2/base/casts.hnote: rexpanded from macro 'absl_nonnull':d
_34(  :
c241In file included from o | r/usr/local/clang/include/absl/log/log.h#dd:)e 209f{i:
}nIn file included from 
e/usr/local/clang/include/absl/log/internal/log_impl.h       :| a                                   ^b20
s:
lIn file included from /usr/local/clang/include/absl/base/nullability.h_/usr/local/clang/include/absl/log/absl_vlog_is_on.h:n:241o63:n:
n22u:l/usr/local/clang/include/absl/log/internal/vlog_config.h l:note:  expanded from macro 'absl_nonnull'49_
N:o  n37241n: | u# ldwarning: le
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f      i
| n                     ^e
 a   b49s | li_nntoIn file included from  nRs2/util/coding/varint.cceng:ui24sl:
tlIn file included from e ../src/s2/base/logging.h_r:NA21on:
ndIn file included from nI/usr/local/clang/include/absl/log/check.hun:il37lt:

iIn file included from       a/usr/local/clang/include/absl/log/internal/check_impl.hl| :i                     ^21z
e:
(/usr/local/clang/include/absl/log/internal/check_op.hV:L452o:g1S:i twarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 /usr/local/clang/include/absl/log/internal/check_op.ha:b450s:l25_:n onote: nexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'nIn file included from 
us2/s2shapeutil_visit_crossing_edge_pairs.cc  l:450l18 |  :
 vIn file included from  )../src/s2/s2shapeutil_visit_crossing_edge_pairs.h ;: 
23       :
 | In file included from                                     ^x../src/s2/s2crossing_edge_query.h,
: 31x:
,In file included from  /usr/local/clang/include/absl/base/nullability.h../src/s2/s2padded_cell.hc::o24123n::
s22In file included from t:../src/s2/s2cell_id.h  :note: cexpanded from macro 'absl_nonnull'h43a
:
rIn file included from   *../src/s2/s1angle.h 241:a | 28b#:
sdIn file included from le../src/s2/s2point.h_f:in27noe:
n In file included from na../src/s2/s2coder.hub:ls23ll:
)_In file included from n
/usr/local/clang/include/absl/status/status.ho      :n| n                        ^u67
l:
l/usr/local/clang/include/absl/base/nullability.hIn file included from  :/usr/local/clang/include/absl/status/internal/status_internal.h_241N::o2922n:
:/usr/local/clang/include/absl/strings/cord.hn u:lnote: 736expanded from macro 'absl_nonnull'l:

17        :| 241                      ^ | warning: #
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n736e |   a b s lc_onnosntn uClolr d_*N oanbnsull_ln
o      n| n                     ^u
In file included from ls2/s2wedge_relations.ccl: 18c:
oIn file included from r../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from In file included from /usr/local/clang/include/absl/log/log.hs2/util/coding/varint.cc::20924:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_impl.h../src/s2/base/logging.h::2021:
:
In file included from In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h/usr/local/clang/include/absl/log/check.h::6337:
:
/usr/local/clang/include/absl/log/internal/vlog_config.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h63::2143:
:/usr/local/clang/include/absl/log/internal/check_op.h :warning: 453type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
1: warning:    type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]63
 |     e453x | pAlBiScLi_tL OcGo_nIsNtTeExRpNrA LV_LDogSEFiINEtIn file included from _eM(s2/util/coding/coder.ccAcK:oE19_n:
sCIn file included from tH../src/s2/util/coding/coder.h E:cC36hK:
a_In file included from rO../src/s2/base/casts.h*P:_ 34aS:
TbIn file included from Rs/usr/local/clang/include/absl/log/log.hlI:_N209nG:
o_In file included from En/usr/local/clang/include/absl/log/internal/log_impl.hnX:uT22lE:
RlIn file included from N /usr/local/clang/include/absl/log/internal/log_message.hf(:)u47
i:
n      In file included from t| /usr/local/clang/include/absl/log/internal/structured_proto.h6                                          ^:4
_27t:
)In file included from /usr/local/clang/include/absl/base/nullability.h;/usr/local/clang/include/absl/log/internal/proto.h:
:241      34:| :
^22
/usr/local/clang/include/absl/types/span.h:: 212:note: /usr/local/clang/include/absl/log/internal/check_op.h22expanded from macro 'absl_nonnull'::449
 :warning: 31  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:241
  | note: #expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'  d
212e | f i  n 449eu  | sai b negxs ltp_oenrino ntntenmeprul la=tl  eT_ *cNo nosatbnsn ulclh_la
nr      *u|                       ^la
lbasbli_lniotnyn_uulnlk nMoawkne;C
h      e| c                     ^k
OpSt/usr/local/clang/include/absl/base/nullability.hr:i289n:g34:(  note:  expanded from macro 'absl_nullability_unknown' 
\
        289|  |                               ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  In file included from u241s2/s2wedge_relations.ccl | :l#18da:
beIn file included from fii../src/s2/s2wedge_relations.hnle: i24ta:
byIn file included from s_l../src/s2/s2point.hu_:nn25okn:
nnIn file included from uo../src/s2/util/coding/coder.hlwl:n 36 :
__In file included from NN../src/s2/base/casts.huo:ln34ln:
_uIn file included from ul/usr/local/clang/include/absl/log/log.hnl:s
209p      :
e| In file included from                      ^c
/usr/local/clang/include/absl/log/internal/log_impl.hi:f20i:
eIn file included from d/usr/local/clang/include/absl/log/absl_vlog_is_on.h
:      63| :
                                 ^
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/util/coding/varint.cc:24:
In file included from    ../src/s2/base/logging.h96: | 21 In file included from :
 s2/util/coding/coder.ccIn file included from f:/usr/local/clang/include/absl/log/check.hr19:i:
e37In file included from n:
../src/s2/util/coding/coder.hdIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h 36i::
n21In file included from t:
../src/s2/base/casts.h/usr/local/clang/include/absl/log/internal/check_op.h ::l34453o:
:gIn file included from 1_/usr/local/clang/include/absl/log/log.h:i:n 209twarning: :
etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from r
/usr/local/clang/include/absl/log/internal/log_impl.hn:/usr/local/clang/include/absl/log/internal/check_op.ha22l::
:450In file included from ::/usr/local/clang/include/absl/log/internal/log_message.hR25:e:47g :
inote: In file included from sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/log/internal/structured_proto.ht
e:r27A  :
450nIn file included from d | /usr/local/clang/include/absl/log/internal/proto.hI :n 34i :
t /usr/local/clang/include/absl/types/span.hi : ax213,l:i 34xz,e: ( cVwarning: oLntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]os
tg S  ci213ht | aer * *u sai bnsalg_bn solncn_unlooln nnvusl)t;_l
p)      
o|       i                                                           ^| n
                        ^t
/usr/local/clang/include/absl/base/nullability.he:/usr/local/clang/include/absl/base/nullability.hr241 ::=24122 ::c22 o:note: n expanded from macro 'absl_nonnull'snote: 
texpanded from macro 'absl_nonnull'   T
241* |    #241adb | esf#ldie_nnfeu ilnalbeasbl _inaolnbniustlyll__ nu_oNnonnnknunlouwln l;l_
N
      o      | n|                      ^n                                 ^u
l
l/usr/local/clang/include/absl/base/nullability.h
:      289| :                     ^34
: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknIn file included from os2/util/coding/varint.ccw:n24 :
_In file included from N../src/s2/base/logging.hu:l21l:
_In file included from u/usr/local/clang/include/absl/log/check.hn:s37p:
eIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.hi:f21i:
e/usr/local/clang/include/absl/log/internal/check_op.hd:
454      :| 1                                 ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      | d                              ^
/usr/local/clang/include/absl/base/nullability.h:241:_22;: 
note:       expanded from macro 'absl_nonnull'| 
                ^
  241 | #defin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nnul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnulIn file included from ls2/util/coding/varint.cc :_24N:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const charIn file included from * In file included from abss2/s2shapeutil_coding.ccl:_28n:
oIn file included from n../src/s2/s2lax_polygon_shape.hn:u36l:
lIn file included from )../src/s2/s2polygon.h
:      29| :
                        ^In file included from 
/usr/local/clang/include/absl/container/flat_hash_map.h:45/usr/local/clang/include/absl/base/nullability.h:
:241:/usr/local/clang/include/absl/container/internal/raw_hash_map.h22::202 :3note: :expanded from macro 'absl_nonnull' 
warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #defi  n202e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^o
r_assign, inseIn file included from rs2/s2wedge_relations.cct:_18o:
rIn file included from ../src/s2/s2wedge_relations.h_In file included from :as2/util/coding/varint.cc24s::
s24iIn file included from :
g../src/s2/s2point.hIn file included from n:../src/s2/base/logging.h_25:i:
21mIn file included from :
p../src/s2/util/coding/coder.hIn file included from l:/usr/local/clang/include/absl/log/check.h,36: :
37&In file included from :
&../src/s2/base/casts.hIn file included from ,:/usr/local/clang/include/absl/log/internal/check_impl.h 34:c:
21oIn file included from :
n/usr/local/clang/include/absl/log/log.h/usr/local/clang/include/absl/log/internal/check_op.hs::t209455&:
:,In file included from 1 /usr/local/clang/include/absl/log/internal/log_impl.h:tIn file included from : rs2/s2shapeutil_visit_crossing_edge_pairs.cc20warning: u:e:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]18,In file included from 
:

/usr/local/clang/include/absl/log/absl_vlog_is_on.hIn file included from         :../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:| 455  ^6323 | 
A:
:
B/usr/local/clang/include/absl/container/internal/raw_hash_map.hSIn file included from L/usr/local/clang/include/absl/log/internal/vlog_config.h:../src/s2/s2crossing_edge_query.h_:133:L119:31O:52:
G15:In file included from _: ../src/s2/s2padded_cell.hI :note: Nexpanded from macro 'ABSL_INTERNAL_X'warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
:

EIn file included from   R../src/s2/s2cell_id.h133  N:A | 11943L _ | :
 D  In file included from E F ../src/s2/s1angle.h I c:N Eo28 _ n:
M sIn file included from AAKt../src/s2/s2point.hBES :_LCc27_HIh:
ENCaIn file included from ../src/s2/s2coder.hTKEr:_RON*23PA_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/util/coding/coder.cc241: | 19#:
dIn file included from e../src/s2/util/coding/coder.hf:36i:
nIn file included from e../src/s2/base/casts.h :a34b:
sIn file included from l/usr/local/clang/include/absl/log/log.h_:n209o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hu:l22l:
 In file included from _/usr/local/clang/include/absl/log/internal/log_message.hN:o47n:
nIn file included from u/usr/local/clang/include/absl/log/internal/structured_proto.hl:l27
:
      In file included from | /usr/local/clang/include/absl/log/internal/proto.h                     ^:
34:
/usr/local/clang/include/absl/types/span.h:733:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  733 | constexpr Span<T> MaIn file included from ks2/util/coding/varint.cce:S24p:
aIn file included from n../src/s2/base/logging.h(:T21*:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
a/usr/local/clang/include/absl/log/internal/check_op.hb:l456e: 1p:t rwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
BSL  _456A | TATBRSILB_ULTOEG__LIINFTEETRINMAEL__BDOEUFNIDN,E
_      M| A                              ^K
E_C/usr/local/clang/include/absl/base/nullability.hH:E257C:23K: _note: Oexpanded from macro 'absl_nullable'P
_S  T257R | I#NdGe_fEiXnTeE RaNb(sclh_anru)l;l
a      b| l^e
 _/usr/local/clang/include/absl/log/internal/check_op.hN:u449l:l31a:b lenote: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      
|                       ^
  449 |   extern template const char* absl_nonnull MakIn file included from es2/util/coding/coder.cc:C19h:
In file included from e../src/s2/util/coding/coder.hc:k36O:
pIn file included from ../src/s2/base/casts.hS:34t:
rIn file included from i/usr/local/clang/include/absl/log/log.hn:g209(:
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h :\22
:
      In file included from | /usr/local/clang/include/absl/log/internal/log_message.h:                              ^47
:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/structured_proto.h::24127::
22In file included from :/usr/local/clang/include/absl/log/internal/proto.h :note: 34expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/types/span.h:  739241: | 21:# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ine   739a | bSspla_nn<oTn>n uMlalk e_SNpoannn(uTl*l 
a      b| s                     ^l
_nullabIn file included from ls2/util/coding/varint.cce: 24b:
eIn file included from g../src/s2/base/logging.hi:n21 :
AIn file included from B/usr/local/clang/include/absl/log/check.hS:L37_:
AIn file included from T/usr/local/clang/include/absl/log/internal/check_impl.hT:R21I:
B/usr/local/clang/include/absl/log/internal/check_op.hU:T456E:_1L:I Fwarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
I/usr/local/clang/include/absl/log/internal/check_op.hM:E450_:B25O:U Nnote: Dexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN',

      |                       ^450
 |  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :x ,note:  expanded from macro 'absl_nullable'x
,   c257o | n#sdte fcihnaer *a basbls_ln_unlolnanbullel )_
N      u| l                        ^l
ab/usr/local/clang/include/absl/base/nullability.hl:e241
:      22| :                      ^ 
note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/util/coding/coder.cce: 19a:
bIn file included from s../src/s2/util/coding/coder.hl:_36n:
oIn file included from n../src/s2/base/casts.hn:u34l:
lIn file included from  /usr/local/clang/include/absl/log/log.h_:N209o:
nIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.hu:l22:
lIn file included from 
/usr/local/clang/include/absl/log/internal/log_message.h      :| 47                     ^:

In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |       In file included from  s2/util/coding/varint.cc : 24 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.hT:*37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l457a:b1l:e  warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
d)   n457o | eAxBcSeLp_tL O{G
_      I| N                    ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A257L:_23D:E Fnote: Iexpanded from macro 'absl_nullable'N
E_  M257A | K#Ed_eCfHiEnCeK _aObPs_lS_TnRuIlNlGa_bElXeT E_RNNu(lulnasbilgen
e      d|                        ^c
har);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h: absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  :
241 | #In file included from dL/usr/local/clang/include/absl/status/status.he:f67i:
n_In file included from eA/usr/local/clang/include/absl/status/internal/status_internal.h T:aT29bR:
sIl/usr/local/clang/include/absl/strings/cord.hB_:Un795ToIn file included from :Ens2/util/coding/coder.cc43_nC:A:Pu19l T:
Ulwarning: In file included from R type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/util/coding/coder.hE_D
:N_36oB:
n  nYIn file included from 795u(../src/s2/base/casts.ht | l:h l34i 
:
sf      rIn file included from )| i/usr/local/clang/include/absl/log/log.h)                     ^e:,
n209 d:
  In file included from  v /usr/local/clang/include/absl/log/internal/log_impl.ho :i 22d :
  In file included from  A/usr/local/clang/include/absl/log/internal/log_message.h b: s 47l :
F In file included from o /usr/local/clang/include/absl/log/internal/structured_proto.hr :m 27a :
 tIn file included from  F/usr/local/clang/include/absl/log/internal/proto.h l :u 34s :
 h/usr/local/clang/include/absl/types/span.h :(\794a
:b      8s| :                                                   ^l 
:warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]C
o/usr/local/clang/include/absl/container/internal/common.hr:d31  *:794 9 | a:b  s note: l macro 'ABSL_INTERNAL_IF_true' defined here _
Tn*o    na31nb | us#lll_d neufcliolnraedb, l
Ae      B S| pLt                                          ^_r
I NATB/usr/local/clang/include/absl/base/nullability.hES:RLN241_AA:LT22_TIR:FI_B tUnote: Trexpanded from macro 'absl_nonnull'Eu
_eL(  iI241fF | E_T#sIadMtEei_fsBifOinUeeN dDa,,b  s.s.li._z)neo _nitnf _susilzalet )i_ sNnofoneixnecudelp
lt      
 |       {        ^| 

                     ^      
|        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_In file included from ns2/s2shapeutil_coding.ccu:l28l:
aIn file included from b../src/s2/s2lax_polygon_shape.hl:e36 :
_In file included from N../src/s2/s2polygon.hu:l29l:
aIn file included from b/usr/local/clang/include/absl/container/flat_hash_map.hl:e45
:
      | /usr/local/clang/include/absl/container/internal/raw_hash_map.h                      ^:
202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insIn file included from es2/util/coding/coder.ccr:t19_:
oIn file included from r../src/s2/util/coding/coder.h_:a36s:
sIn file included from i../src/s2/base/casts.hg:n34_:
iIn file included from m/usr/local/clang/include/absl/log/log.hp:l209,:
 In file included from &/usr/local/clang/include/absl/log/internal/log_impl.h&:,22 :
cIn file included from o/usr/local/clang/include/absl/log/internal/log_message.hn:s47t:
&In file included from ,/usr/local/clang/include/absl/log/internal/structured_proto.h :t27r:
uIn file included from /usr/local/clang/include/absl/log/internal/proto.he:,34
:
      /usr/local/clang/include/absl/types/span.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~799
:32:   warning: 203type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
      799  |  S p a n < c o n s t   T >t rMuaek,e C.ofnisrtsStp,a nc(In file included from oTs2/s2shapeutil_visit_crossing_edge_pairs.ccn*:s 18ta:
_bIn file included from is../src/s2/s2shapeutil_visit_crossing_edge_pairs.hlt:_en23url:
alIn file included from taob../src/s2/s2crossing_edge_query.hrl: e31A :
BbIn file included from Se../src/s2/s2padded_cell.hLg:i_23In:
N
In file included from T      ../src/s2/s2cell_id.hE| :R                               ^43N
A:
LIn file included from /usr/local/clang/include/absl/base/nullability.h_../src/s2/s1angle.h:C:257O28M::
M23In file included from A:../src/s2/s2point.h) :;note: 27
expanded from macro 'absl_nullable':
      
In file included from | ../src/s2/s2coder.h                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:257
23 | :
#/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from d:/usr/local/clang/include/absl/status/status.he133:f:67i47:
n:eIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h a:bnote: 29sexpanded from macro 'ABSL_INTERNAL_X':
l
/usr/local/clang/include/absl/strings/cord.h_:n898  u:133l27 | l:a  b warning: l etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
 _ N u   l898 l |  a bAl BefS
rL      i_| e                      ^In
NdT EcRoNnAsLt_ In file included from ACTs2/util/coding/coder.ccoT:rRdI19zB:
UIIn file included from Tn../src/s2/util/coding/coder.hEf:_o36C*:
A In file included from Pa../src/s2/base/casts.hTb:sU34lR:
_EIn file included from nD/usr/local/clang/include/absl/log/log.hu_:lB209lY:
a(In file included from bt/usr/local/clang/include/absl/log/internal/log_impl.hlh:ei22s :
G)In file included from e)/usr/local/clang/include/absl/log/internal/log_message.ht,: C 47o :
 rIn file included from  d/usr/local/clang/include/absl/log/internal/structured_proto.h z :I 27n :
f In file included from o /usr/local/clang/include/absl/log/internal/proto.h F: o34 r:
 T/usr/local/clang/include/absl/types/span.h e :s 801t :i 32n :g  ( warning: 
 type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]       
|                            ^\
  
801/usr/local/clang/include/absl/base/nullability.h       | :|  257                                              ^~~~ :
 23 :   note:  expanded from macro 'absl_nullable'/usr/local/clang/include/absl/container/internal/raw_hash_map.h 
: 202    :257 3 |  : #  d warning:  e passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] f
 i /usr/local/clang/include/absl/container/internal/raw_hash_map.hn :e 135  : a16 b: s  lnote: T_expanded from macro 'ABSL_INTERNAL_X'*n 
aubl  sll135a_ | bn lu le l a_ bN lu e l  el na db)t lnhoeie
sx)      c| )e)                      ^p t
A B{S
L      _| A                               ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Lnote: Iexpanded from macro 'absl_nullable'F
ET  I257M | E#_dBeOfUiNnDe  {a b s l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
   \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from In file included from s2/s2shapeutil_coding.cc../src/s2/s2padded_cell.h::2823:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/s2cell_id.h::3643:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s1angle.h::2928:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_map.h../src/s2/s2point.h::4527:
:
/usr/local/clang/include/absl/container/internal/raw_hash_map.hIn file included from :../src/s2/s2coder.h202::233:
:In file included from  /usr/local/clang/include/absl/status/status.h:warning: 67'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
s2/s2text_format.ccIn file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from :2916s2/s2shapeutil_build_polygon_boundaries.cc:
:
:/usr/local/clang/include/absl/strings/cord.hIn file included from 24:../src/s2/s2text_format.h:
927:In file included from :34/usr/local/clang/include/absl/container/btree_map.h43:
::In file included from 67 ../src/s2/mutable_s2shape_index.h:
warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/btree_container.h30
::
523In file included from :/usr/local/clang/include/absl/container/btree_map.h31::66   :
warning: 927In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | /usr/local/clang/include/absl/container/internal/btree.h 
: 70 :
   In file included from 523 /usr/local/clang/include/absl/container/internal/layout.h |  :  198  :
   /usr/local/clang/include/absl/strings/str_cat.h  :  223  :   25  :     warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]   
              223 f | a l see x, p  f l ailCcsoiert)d ;RHeep
x*      ( Pa| bos                              ^il
n_tne/usr/local/clang/include/absl/container/internal/btree_container.hue:l*l496a b:al9be:  snote: rlemacro 'ABSL_INTERNAL_X' defined here_p
n)u;l  
l496      a | | b#                                          ^lde
e fvi,n/usr/local/clang/include/absl/base/nullability.h e:P 257aA:dB23SS:pL e_cnote: Iexpanded from macro 'absl_nullable' N
sTpE  eR257cN |  #Ad=eLf i_naXbe( saFlbus:ln:_cnkuN,ol PlCaaabdllel )_e
Neu      l,| l a                        ^bK
lQeu
a/usr/local/clang/include/absl/base/nullability.h      l:| ,                      ^257 
:M23Q:u anote: lexpanded from macro 'absl_nullable',
 K  V257a | l#udee,f iMnVea laubes,l _.n.u.l)l a b l e  \_
In file included from N      s2/s2shapeutil_visit_crossing_edge_pairs.ccu| :l        ^18l
:
aIn file included from b../src/s2/s2shapeutil_visit_crossing_edge_pairs.hl:e23
:
      In file included from | ../src/s2/s2crossing_edge_query.h                      ^:
31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2shapeutil_visit_crossing_edge_pairs.cc::52218::
3In file included from :../src/s2/s2shapeutil_visit_crossing_edge_pairs.h :23warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2crossing_edge_query.h:31:
In file included from   ../src/s2/s2padded_cell.h522: | 23 :
 In file included from A../src/s2/s2cell_id.hB:S43L:
_In file included from I../src/s2/s1angle.hN:T28E:
RIn file included from N../src/s2/s2point.hA:L27_:
XIn file included from (../src/s2/s2coder.hi:n23s:
eIn file included from r/usr/local/clang/include/absl/status/status.ht:_67o:
rIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ha:s29s:
i/usr/local/clang/include/absl/strings/cord.hg:n932,:17 :i nwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
rt_  o932r | _ a s s icgonn_sitm pclh,a rc*o nasbts l&_,n uclolnasbtl e& ,d
a      t| a  ^(
) /usr/local/clang/include/absl/container/internal/btree_container.hc:o509n:s52t:; 
      note: | expanded from macro 'ABSL_INTERNAL_X'                ^

/usr/local/clang/include/absl/base/nullability.h  :509257 | : 23 :   note:  expanded from macro 'absl_nullable' 
     257  | A#BdSeLf_iInNeT EaRbNsAlL__nAuTlTlRaIbBlUeT E__NCuAlPlTaUbRlEeD
_      B| Y                      ^(
this)),              In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from \../src/s2/s2crossing_edge_query.h
:      31| :
                                                   ^In file included from 
../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s1angle.h32::289:
:In file included from  ../src/s2/s2point.h:note: 27macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from ../src/s2/s2coder.h:23   :
32In file included from  | 21/usr/local/clang/include/absl/status/status.h#::
d67In file included from e:
/usr/local/clang/include/absl/log/check.hfIn file included from :i/usr/local/clang/include/absl/status/internal/status_internal.h37n::
e29In file included from  :
/usr/local/clang/include/absl/log/internal/check_impl.hA/usr/local/clang/include/absl/strings/cord.hB::S21934L:
:_31/usr/local/clang/include/absl/log/internal/check_op.hI::N 457Twarning: :Etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]1R
:N A  warning: L934type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_ | I
 F _ /usr/local/clang/include/absl/log/internal/check_op.hf :va450ol:isd25e :(s eitnote: _fexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'd_a
staat(i  cso450fn | is etd  c,h  a .r .* .x )a, b_s l__xVn,Au l_clAaoRbnGlsSte_  _c
dh      aat| ar        ^,*
  saibzsel__tn In file included from onns2/s2shapeutil_build_polygon_boundaries.cc)n:u;24l
:
l      In file included from )| /usr/local/clang/include/absl/container/btree_map.h
                              ^:      
67| :
/usr/local/clang/include/absl/base/nullability.h                        ^/usr/local/clang/include/absl/container/internal/btree_container.h:
:257522::233::  note: warning: expanded from macro 'absl_nullable'passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

  257 |   #522d | e f iAnBeS La_bIsNlT_EnRuNlAlLa_bXl(ei n_sNeurltl_aobrl_ea
s      s| i                      ^g
n, insert_or_assign_iIn file included from ms2/s2shapeutil_visit_crossing_edge_pairs.ccp:l18,:
 In file included from c../src/s2/s2shapeutil_visit_crossing_edge_pairs.ho:n23s:
tIn file included from  ../src/s2/s2crossing_edge_query.h&:,31 :
cIn file included from o../src/s2/s2padded_cell.hn:s23t:
 In file included from &../src/s2/s2cell_id.h:,43
:
      In file included from | ../src/s2/s1angle.h  ^:
28:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2point.h::51127::
52In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/status/status.h:67:
  In file included from 511/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 935 : 11 :   warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_  I935N | T E R N AcLh_aArT*T RaIbBsUlT_En_oCnAnPuTlUlR EsDe_tB_Yd(atthai(ss)i)z)e _ t   n ) ;     / /   W r i t e   d a t a   t o\ 
t      h| e                                                   ^ 
re/usr/local/clang/include/absl/container/internal/common.hs:u32l:t9
:       | note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::524241::322::  warning: note: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]expanded from macro 'absl_nonnull'

    524241 |  |  # dAeBfSiLn_eI NaTbEsRlN_AnLo_nXn(uilnls e_rNto_nonru_lals
s      i| g                     ^n
, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: In file included from expanded from macro 'ABSL_INTERNAL_X's2/util/coding/varint.cc
:24:
In file included from   ../src/s2/base/logging.h511: | 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21A:
B/usr/local/clang/include/absl/log/internal/check_op.hS:L458_:I1N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_A  T458T | RAIBBSULT_EL_OCGA_PITNUTREERDN_ABLY_(DtEhFiIsN)E)_)M A K E _ C H E C K _ O P _ S T R I N G _ E X T E\R
N      (| c                                                   ^o
ns/usr/local/clang/include/absl/container/internal/common.ht: 31s:t9d:: :note: smacro 'ABSL_INTERNAL_IF_true' defined heret
rin   g31& | )#;d
e      f| i^n
e A/usr/local/clang/include/absl/log/internal/check_op.hB:
S449:L31_          ^:I
 Nnote: T/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'E:
R241N:A  L22449_  : | I 202 F  | note: _expanded from macro 'absl_nonnull'e x tte
ArBrun  SeL _241(tiefmI | _#pNlTaEsRdtaeNet AficsoLnif_iXe(disnte,n s  ceha.rab.t._)orrs *i fa__lbssal_as_sntoniognni,snnnuu flliilln e_ NsodM
ena      krn| e        ^Cthu
l_leo
crk      _Oa| psS                     ^sti
In file included from rgs2/s2shapeutil_build_polygon_boundaries.ccin:n_24gi:
(mIn file included from p /usr/local/clang/include/absl/container/btree_map.hl ,:  \67&
:
&      /usr/local/clang/include/absl/container/internal/btree_container.h,|  :c                              ^o524
n:s3/usr/local/clang/include/absl/base/nullability.ht::& ,In file included from 241 warning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2/s2shapeutil_visit_crossing_edge_pairs.cc:r
u:22e18:,  :
 
524In file included from       note:  | expanded from macro 'absl_nonnull'../src/s2/s2shapeutil_visit_crossing_edge_pairs.h|  
 :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A  B23
241S:
 | L#In file included from   _dI../src/s2/s2crossing_edge_query.h203eNf: | T i 31EnReN  a:
A L b In file included from _sXl _../src/s2/s2padded_cell.h( i n sne: o r 23ntn_uo :
lrl In file included from _ a s../src/s2/s2cell_id.h_ N otsr:ninuu43gel,:
nl 
In file included from ,. fii      ../src/s2/s1angle.hnrss| t:e                     ^,28r
t _:
cooIn file included from rn../src/s2/s2point.h_s:ats27_s:
iiIn file included from tg../src/s2/s2coder.hIn file included from enr:s2/util/coding/varint.cc_ai23:tmop:
24rlIn file included from :
 ,A /usr/local/clang/include/absl/status/status.hIn file included from BcS:../src/s2/base/logging.hoLn67:_sI:
21tN In file included from :
T&/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from E,:/usr/local/clang/include/absl/log/check.hR Nc29:AoL:
37n_s/usr/local/clang/include/absl/strings/cord.h:
Ct:In file included from O M937/usr/local/clang/include/absl/log/internal/check_impl.h&M,::A
)3521      ;::
| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/clang/include/absl/log/internal/check_op.h      
:warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]458                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:525
1 | :     warning: 937type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/internal/raw_hash_map.h  | 
 : /usr/local/clang/include/absl/log/internal/check_op.h  135 : :  450a11b s:l: 25 : : :note:   cexpanded from macro 'ABSL_INTERNAL_X'note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'o
r d
 _  i n  135 t450 |   e | f a r nla l :s: C e ,  xo  t , rr ux ,deR e )ctop;hnisst) *
)c)       h aa| ArBbSs                  ~~~~~~~~~~~~*Ll
_ n_aAbTs/usr/local/clang/include/absl/container/internal/btree_container.hluT:_lRl511nIa:o47nBnb:UuTl note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n526u:l3l:  vwarning: )passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted];

      |                                     ^  
526 |   /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#Xd(eifnisneer ta_bosrl__ansosningunl,l  i_nNsoenrntu_lolr
_      a| s                     ^s
ign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_In file included from Cs2/s2wedge_relations.ccA:P18T:
UIn file included from R../src/s2/s2wedge_relations.hE:D24_:
BIn file included from Y../src/s2/s2point.h(:t25h:
iIn file included from s../src/s2/util/coding/coder.h):)36,:
 In file included from  ../src/s2/base/casts.h : 34 :
 In file included from  /usr/local/clang/include/absl/log/log.h : 209 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h : 20 :
 In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h : 63 :
 /usr/local/clang/include/absl/log/internal/vlog_config.h : 157 :\11
:       | warning:                                                    ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/common.h:  31157: | 9V:L onote: gmacro 'ABSL_INTERNAL_IF_true' defined hereS
ite   *31  | a#bdself_innuel lAaBbSlLe_ ISNeTtEVRMNoAdLu_lIeFL_itsrtuHee(aidfF_osraTteisstfOineldy,( 
.      .| .          ^)
 i/usr/local/clang/include/absl/base/nullability.hf:_257s:a23t:i snote: fexpanded from macro 'absl_nullable'i
ed  
257       | | #        ^d
efine absl_nullableIn file included from  s2/s2shapeutil_build_polygon_boundaries.cc_:N24u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.ha:b67l:
e/usr/local/clang/include/absl/container/internal/btree_container.h
:      526| :                      ^3
: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from s2/s2wedge_relations.cc:18  :
526In file included from  | ../src/s2/s2wedge_relations.h : 24A:
BIn file included from S../src/s2/s2point.hL:_25I:
NIn file included from T../src/s2/util/coding/coder.hE:R36N:
AIn file included from L../src/s2/base/casts.h_:X34(:
iIn file included from n/usr/local/clang/include/absl/log/log.hs:e209r:
tIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.ho:r20_:
aIn file included from s/usr/local/clang/include/absl/log/absl_vlog_is_on.hs:i63g:
n/usr/local/clang/include/absl/log/internal/vlog_config.h,: 158i:n15s:e rwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
or  _158a | s s i g nV_LiomgpSli,t ec*o nasbts l&_,n uclolnasbtl e& ,v
)      ;| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~      
|               ^
  527 | /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f itnreu ea,b sfla_lnsuel)l;a
b      l| e                  ~~~~~~~~~~~~ 
_Nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l509a:b47l:e 
note:       expanded from macro 'ABSL_INTERNAL_X'| 
                      ^
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
lEl)
      | _e                        ^L
 In file included from tres2/s2text_format.cc/usr/local/clang/include/absl/base/nullability.he::(16241):
: In file included from 22c../src/s2/s2text_format.h:o: n34note: sexpanded from macro 'absl_nonnull':
t
In file included from ;../src/s2/mutable_s2shape_index.h
  :      24130|  |                                   ^:
#
In file included from d/usr/local/clang/include/absl/container/btree_map.he:f66i/usr/local/clang/include/absl/base/nullability.h:
n:In file included from e257/usr/local/clang/include/absl/container/internal/btree.h ::a2370b::
s In file included from lnote: /usr/local/clang/include/absl/container/internal/layout.hexpanded from macro 'absl_nullable'_:n
198o:
n  n/usr/local/clang/include/absl/strings/str_cat.h257u:l | 398l#: d24_e:Nf oiwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]nn
uel la
b        s398| l |                      ^ _
 nAullplhaabNluem (_cNounlslta bclhea
r      *|                        ^a
bsl_nullable c_str  In file included from /s2/util/coding/varint.cc/: 24N:
OIn file included from L../src/s2/base/logging.hI:N21T:
(In file included from r/usr/local/clang/include/absl/log/check.hu:n37t:
iIn file included from m/usr/local/clang/include/absl/log/internal/check_impl.heIn file included from :/s2/s2shapeutil_visit_crossing_edge_pairs.cc21e::
x18/usr/local/clang/include/absl/log/internal/check_op.hp:
:lIn file included from 459i../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:c:1i23:t:
 )warning: In file included from 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2crossing_edge_query.h      
:| 31                       ^:
  
In file included from 459../src/s2/s2padded_cell.h | :A/usr/local/clang/include/absl/base/nullability.hB23:S:
257LIn file included from :_../src/s2/s2cell_id.h23L::O43 G:
note: _expanded from macro 'absl_nullable'In file included from I
N../src/s2/s1angle.hT:  E28257R:
 | N#In file included from Ad../src/s2/s2point.hLe_:fDi27EnF:
eI In file included from NaE../src/s2/s2coder.hb_sM:lA_23Knul:
ElIn file included from _aC/usr/local/clang/include/absl/status/status.hbHl:EeC67 K_:
_NOIn file included from uP/usr/local/clang/include/absl/status/internal/status_internal.hl_:lS29aTb:
RlI/usr/local/clang/include/absl/strings/cord.heN:
G938      _:| E                      ^35X
:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
(con  s938t |   a b s la:b:sslt:r:icnogr_dv_iienwt&e)r;n
a      l| :^:
Co/usr/local/clang/include/absl/log/internal/check_op.hr:d449R:e31p:*  note: aexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'b
sl_  n449o | n n uelxlt earsn_ ttreemep(l)a tceo ncsotn;s
t       | ch                                  ^a
r*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #MdaekfeiCnhee cakbOsplS_tnroinnngu(l l   _\N
o      n| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2shapeutil_visit_crossing_edge_pairs.ccb:s18l:
_In file included from n../src/s2/s2shapeutil_visit_crossing_edge_pairs.ho:nIn file included from 23ns2/s2text_format.ccu:
:lIn file included from 16l../src/s2/s2crossing_edge_query.h:
 :In file included from _31../src/s2/s2text_format.hN:
:oIn file included from 34n../src/s2/s2padded_cell.h:
n:In file included from u23../src/s2/mutable_s2shape_index.hl:
l:
In file included from 30      ../src/s2/s2cell_id.h:
| :In file included from                      ^43/usr/local/clang/include/absl/container/btree_map.h
:
:In file included from 66../src/s2/s1angle.h:
:In file included from 28/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70../src/s2/s2point.h:
:In file included from 27/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from In file included from 198s2/util/coding/varint.cc../src/s2/s2coder.h:
::/usr/local/clang/include/absl/strings/str_cat.h2423::
:
431In file included from In file included from :../src/s2/base/logging.h/usr/local/clang/include/absl/status/status.h15:::2167 :
warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from /usr/local/clang/include/absl/log/check.h
/usr/local/clang/include/absl/status/internal/status_internal.h::3729  :
:
431In file included from /usr/local/clang/include/absl/strings/cord.h | /usr/local/clang/include/absl/log/internal/check_impl.h :: 93921c::
o17/usr/local/clang/include/absl/log/internal/check_op.hn::s 459twarning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1c
:h a  warning: r939type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]* | 
   /usr/local/clang/include/absl/log/internal/check_op.ha :b 450sc:lo25_n:ns utnote: l expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'lc
ahb  al450re* |    d aa bt sa (l )_x ,nc ooxnn,s ntc uo{ln lsrt e tacushra_nr c*p hiaaebcrsesl__(.nd)oan tncaou(ln)l;s) 
t}      
;|                               ^
| 
              ^      
/usr/local/clang/include/absl/base/nullability.h| :/usr/local/clang/include/absl/base/nullability.h                ^241:
:25722/usr/local/clang/include/absl/base/nullability.h:::23 241note: :expanded from macro 'absl_nonnull': 
22note: :  expanded from macro 'absl_nullable' 241
note:  | expanded from macro 'absl_nonnull'  #
257d |   #e241dfe | if#niedne eaf baisbnls_eln _onanunbluslllal_b nl_eoN on_nNnnuuulllllla 
_b      Nl| oe                     ^n

n      u| l                      ^l

      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.ccIn file included from :s2/util/coding/varint.cc18::
24In file included from :
../src/s2/s2shapeutil_visit_crossing_edge_pairs.hIn file included from :../src/s2/base/logging.h23::
21In file included from :
../src/s2/s2crossing_edge_query.hIn file included from :/usr/local/clang/include/absl/log/check.h31::
37In file included from :
../src/s2/s2padded_cell.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h23::
21In file included from :
../src/s2/s2cell_id.h/usr/local/clang/include/absl/log/internal/check_op.h::43460:
:In file included from 1../src/s2/s1angle.h:: 28:
warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h  :46023 | :
AIn file included from B/usr/local/clang/include/absl/status/status.hS:L67_:
LIn file included from O/usr/local/clang/include/absl/status/internal/status_internal.hG:_29I:
N/usr/local/clang/include/absl/strings/cord.hT:E941R:N35A:L _warning: Dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]E
FIN  E941_ | M A K E _aCbHsElC:K:_cOoPr_dS_TiRnItNeGr_nEaXlT:E:RCNo(rcdoRnespt*  cahbasrl*_ naublslla_bnloen ncullela)r;(
)      ;| 
^      
|                                   ^/usr/local/clang/include/absl/log/internal/check_op.h
:449:/usr/local/clang/include/absl/base/nullability.h31::257 :23note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
note: expanded from macro 'absl_nullable'
  449   | 257  |  #edxetfeirnne  taebmspll_antuel lcaobnlset  _cNhualrl*a balbes
l      _| n                      ^o
nnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc_:N18o:
nIn file included from n../src/s2/s2shapeutil_visit_crossing_edge_pairs.hu:l23l:

In file included from       ../src/s2/s2crossing_edge_query.h| :                     ^31
:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from In file included from ../src/s2/s2cell_id.hs2/util/coding/varint.cc::4324:
:
In file included from In file included from ../src/s2/s1angle.h../src/s2/base/logging.h::2821:
:
In file included from In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/check.h::2737:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/internal/check_impl.h::2321:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/status/status.h::46067::
66In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :warning: 29type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/cord.h:950:18  :460  | warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_L  O950G | _ I N T ECRoNrAdLR_eDpEFFlIaNtE*_ MaAbKsEl__CnHoEnCnKu_lOlP _MSaTkReIFNlGa_tEWXiTtEhRENx(tcroanCsatp acchiatry*( saibze_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier meItFhEoTdI)M;E
_      B| O                             ^U
ND/usr/local/clang/include/absl/base/nullability.h :{241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l\l
       _| N          ^~~~o
nnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInslli_nneodn(nCuolrld)R;e
p      *|                                                                   ^a
bsl_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: texpanded from macro 'absl_nonnull'r
ee,
        241|  |                                        ^#
de/usr/local/clang/include/absl/base/nullability.hf:i241n:e22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf i_nNeo nanbuslll_
n      o| n                     ^n
ull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1821:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h::46023::
66In file included from :../src/s2/s2crossing_edge_query.h :warning: 31type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2padded_cell.h/usr/local/clang/include/absl/base/nullability.h::23241:
:In file included from 22../src/s2/s2cell_id.h:: 43note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s1angle.h:28  :
241In file included from  | ../src/s2/s2point.h#:d27e:
fIn file included from i../src/s2/s2coder.hn:e23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 988_:N37:o nwarning: n/usr/local/clang/include/absl/container/internal/raw_hash_map.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u:l
205l:
3        :| 988                      ^ | warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
 
  vo  In file included from i205s2/util/coding/varint.ccd | :  24 P:
ArIn file included from Be../src/s2/base/logging.hSp:Le21n_:
dITIn file included from rN/usr/local/clang/include/absl/log/check.heT:eET37Ro:
NTIn file included from Ar/usr/local/clang/include/absl/log/internal/check_impl.hLe:_e21(XC:
(/usr/local/clang/include/absl/log/internal/check_op.hoi:nr460sd:eR1re:tp _*warning: o type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ra
_bas  sl460_s | niAgoBnSn,nLu l_liLn OsGte_rrItNe_ToeEr,R_Na AsMLes_itDgEhnF_oIiNdmEIp_ldMe,A nK&tE&i_f,Ci H&eE&Cr,K  _mfOeaPlt_sSehT,Ro IfdNa)G;l
_sE      eX| ,T
                                    ^E      R
| N  ^(/usr/local/clang/include/absl/base/nullability.h
c:o/usr/local/clang/include/absl/container/internal/raw_hash_map.h241n::s133t22: :52c :hnote:  aexpanded from macro 'absl_nonnull'note: rexpanded from macro 'ABSL_INTERNAL_X'
*
   a241b  s | 133l# | _dn oe n fn ui l nel )  ;a 
 b      As| lB^S_
Ln_o/usr/local/clang/include/absl/log/internal/check_op.hIn:Nn450Tu:El25Rl:N  _Anote: LNexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_o
AnT  nT450Ru | I Bl U lT 
E _       Cx| A,                     ^P T
xU,R EcDo_nBsYt( tchhiasr)*)In file included from  ,s2/s2shapeutil_visit_crossing_edge_pairs.cca b :s l18 _ :
n oIn file included from  n ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hn u :l 23l ):
 
 In file included from        ../src/s2/s2crossing_edge_query.h|                          ^: 
 31/usr/local/clang/include/absl/base/nullability.h :
: In file included from  241 ../src/s2/s2padded_cell.h: :22 23: :
  In file included from note: \expanded from macro 'absl_nonnull'../src/s2/s2cell_id.h

:      43  | :
241                                                   ^In file included from  | 
#../src/s2/s1angle.hd:e/usr/local/clang/include/absl/container/internal/common.hf28:i:
32nIn file included from :e../src/s2/s2point.h9 ::a27 b:
note: sIn file included from macro 'ABSL_INTERNAL_IF_false' defined herel../src/s2/s2coder.h
_:n23   o:
32nIn file included from  | n#/usr/local/clang/include/absl/status/status.hudl:elf67 i_:
nNeIn file included from o n/usr/local/clang/include/absl/status/internal/status_internal.hAn:BuS29lLl:
_
/usr/local/clang/include/absl/strings/cord.hI      :N| T989                     ^E:
R31N:A Lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
F_f  a989l | s e ( i fv_osiadt iPsrfeipeIn file included from eds2/util/coding/varint.ccn,:d 24.T:
.rIn file included from .e../src/s2/base/logging.h)e: (21_C:
_oIn file included from Vr/usr/local/clang/include/absl/log/check.hAd:_R37Ae:
RpIn file included from G*/usr/local/clang/include/absl/log/internal/check_impl.hS :_a21_b:

s/usr/local/clang/include/absl/log/internal/check_op.h      l:| _461        ^n:
o1n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 tr  eIn file included from 461es2/s2shapeutil_coding.cc | ,:A 28BM:
SeIn file included from Lt../src/s2/s2lax_polygon_shape.h_h:Lo36Od:
GIIn file included from _d../src/s2/s2polygon.hIe:Nn29Tt:
EiIn file included from Rf/usr/local/clang/include/absl/container/flat_hash_map.hNi:Ae45Lr:
_ /usr/local/clang/include/absl/container/internal/raw_hash_map.hDm:Ee205tF:Ih3oN:Ed _)warning: M;passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]A

K      E| _                                ^C205
H | E /usr/local/clang/include/absl/base/nullability.hC :KA_241BOS:PL_22_SI:TNR TInote: ENRexpanded from macro 'absl_nonnull'GN_
AEL  X_T241XE( | RiN#n(ds
ee      rf| t^i_
on/usr/local/clang/include/absl/log/internal/check_op.hre:_ 449aa:sb31ss:il g_note: nnexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN',o
 ninn  su449el | rl t  __eoNxrot_nearnsnus iltgelnm_
pil      map| tle                     ^,  
c&o&n,s t& &c,h afra*l saeb,s lf_anlosnen,u
l      l|    ^M
ak/usr/local/clang/include/absl/container/internal/raw_hash_map.he:C135h:e16c:kIn file included from  Os2/s2shapeutil_visit_crossing_edge_pairs.ccpnote: S:expanded from macro 'ABSL_INTERNAL_X't18
r:
iIn file included from n  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hg135(: |    23   :
\ 
In file included from         ../src/s2/s2crossing_edge_query.h|  :                              ^ 31
 :
/usr/local/clang/include/absl/base/nullability.h In file included from :t../src/s2/s2padded_cell.h241h::i2322s:
:)In file included from  )../src/s2/s2cell_id.hnote: )expanded from macro 'absl_nonnull': 
43A:
  BIn file included from 241S../src/s2/s1angle.h | L:#_28dAe:
TfTIn file included from iRn../src/s2/s2point.hIeB: UaT27bEs:
_lLIn file included from _In../src/s2/s2coder.hFoE:nTn23IuM:
lElIn file included from _ /usr/local/clang/include/absl/status/status.hB_O:NUo67NnD:
n uIn file included from {l /usr/local/clang/include/absl/status/internal/status_internal.hl 
:       29 | :
                      ^ /usr/local/clang/include/absl/strings/cord.h
                        \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |      :994:30: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3  :994  |  warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 void   C528o | p y TAoB(SsLt_dI:N:TsEtRrNiAnLg_*X (aibnssle_rnto_nonru_lals sdisgtn),  cionnssetr t{_
o      r| _                             ^a
ssign_/usr/local/clang/include/absl/base/nullability.hi:m241p:l22,:  cnote: oexpanded from macro 'absl_nonnull'n
st   &241, |  #cdoenfsitn e& ,a
b      s| l  ^_
non/usr/local/clang/include/absl/container/internal/btree_container.hn:u509l:l52 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
null  
509       | |                       ^ 
        ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),         In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h : 23 :
 In file included from  ../src/s2/s2crossing_edge_query.h : 31 :
 In file included from \../src/s2/s2padded_cell.h
:      23| :
                                                   ^In file included from 
../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h/usr/local/clang/include/absl/container/internal/common.h::2831:
:In file included from 9../src/s2/s2point.h:: 27:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/s2coder.h
:23:
In file included from    /usr/local/clang/include/absl/status/status.h31: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :A999B:S28L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN  A999L | _ I F _ tvrouied( iCfo_psyaTtoiAsrfriaeyd(,c h.a.r.*)  aibfs_ls_antoinsnfuileld 
d      s| t        ^)
 const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #dIn file included from es2/s2shapeutil_build_polygon_boundaries.ccf:i24n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n528o:n3n:u lwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
_Nonn  u528l | l 
       A| B                     ^S
L_INTERNAL_X(insert_or_assign, insert_or_assign_impIn file included from ls2/s2shapeutil_visit_crossing_edge_pairs.cc,: 18c:
oIn file included from n../src/s2/s2shapeutil_visit_crossing_edge_pairs.hs:t23 :
&In file included from ,../src/s2/s2crossing_edge_query.h :c31o:
nIn file included from s../src/s2/s2padded_cell.ht: 23&:
,In file included from 
../src/s2/s2cell_id.h      :| 43  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s1angle.h:  28529:
 | In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29t:
r/usr/local/clang/include/absl/strings/cord.hu:e1012,: 37t:r uwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
;
      |                    ~~~~~~~~~~~1012
 |   /usr/local/clang/include/absl/container/internal/btree_container.h : 509a:b47s:l :note: :expanded from macro 'ABSL_INTERNAL_X'c
ord_  i509n | t e r n a l : : C o rAdBzSILn_fIoN*T EaRbNsAlL__nAuTlTlRaIbBlUeT Ec_oCrAdPzT_UiRnEfDo_(B)Y (ctohnisst) ){,
        |                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i\n
e       | a                                              ^~~~b
sl_nullab/usr/local/clang/include/absl/container/internal/btree_container.hl:e528 :_3N:u lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bl/usr/local/clang/include/absl/container/internal/btree_container.he:
511      :| 52                      ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_IIn file included from Ns2/s2shapeutil_visit_crossing_edge_pairs.ccT:E18R:
NIn file included from A../src/s2/s2shapeutil_visit_crossing_edge_pairs.hL:_23A:
TIn file included from T../src/s2/s2crossing_edge_query.hR:I31B:
UIn file included from T../src/s2/s2padded_cell.hE:_23C:
AIn file included from P../src/s2/s2cell_id.hT:U43R:
EIn file included from D../src/s2/s1angle.h_:B28Y:
(In file included from t../src/s2/s2point.hh:i27s:
)In file included from )../src/s2/s2coder.h): 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1017 : 51 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \
       1017|  |                                                    ^ 
  /usr/local/clang/include/absl/container/internal/common.h :v31o:i9d:  snote: emacro 'ABSL_INTERNAL_IF_true' defined heret
_co   r31d | z#_dienffion(ec oArBdS_Li_nItNeTrEnRaNlA:L:_CIoFr_dtzrIunef(oi*f _asbastli_snfoinendu,l l. .c.o)r dizf__isnaftoi)s f{i
e      d| 
                                                  ^      
|         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defineIn file included from  s2/s2shapeutil_build_polygon_boundaries.cca:b24s:
lIn file included from _/usr/local/clang/include/absl/container/btree_map.hn:o67n:
n/usr/local/clang/include/absl/container/internal/btree_container.hu:l528l: 3_:N owarning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ull
        | 528                     ^ | 
  ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |     In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hA:B23S:
LIn file included from _../src/s2/s2crossing_edge_query.hI:N31T:
EIn file included from R../src/s2/s2padded_cell.hN:A23L:
_In file included from A../src/s2/s2cell_id.hT:T43R:
IIn file included from B../src/s2/s1angle.hU:T28E:
_In file included from C../src/s2/s2point.hA:P27T:
UIn file included from R../src/s2/s2coder.hE:D23_:
BIn file included from Y/usr/local/clang/include/absl/status/status.h(:t67h:
iIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.h):)29):
 /usr/local/clang/include/absl/strings/cord.h : 1049 : 56 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1049  |      s t a t i c\ 
b      o| o                                              ^~~~l
 GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2point.h::53227::
24In file included from :../src/s2/s2coder.h :23warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/status/status.h
:67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h532: | 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1050 : 45 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1050  |     f a l s e ) ; 
        |                         ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 496 : 9 :   note:  macro 'ABSL_INTERNAL_X' defined here 
 ab  s496l | :#:dsetfriinneg _AvBiSeLw_*I NaTbEsRlN_AnLo_nXn(uFluln cf,r aCgamlelnete),; 
K      Q| u                                            ^a
l,/usr/local/clang/include/absl/base/nullability.h :M241Q:u22a:l ,note:  expanded from macro 'absl_nonnull'K
Va  l241u | e#,d eMfVianleu ea,b s.l._.n)o n n u l l\ 
_      N| o        ^n
null
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_internal::CordRep* absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o531n:n3ull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_visit_crossing_edge_pairs.cc::24118::
22In file included from :../src/s2/s2shapeutil_visit_crossing_edge_pairs.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2crossing_edge_query.h:31:
  In file included from 241../src/s2/s2padded_cell.h | :#23d:
eIn file included from f../src/s2/s2cell_id.hi:n43e:
 In file included from a../src/s2/s1angle.hb:s28l:
_In file included from n../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl: 23_:
NIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                     ^/usr/local/clang/include/absl/strings/cord.h
:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   abIn file included from ss2/util/coding/varint.ccl::24::
cIn file included from o../src/s2/base/logging.hr:d21_:
iIn file included from n/usr/local/clang/include/absl/log/check.ht:e37r:
nIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hl::21::
C/usr/local/clang/include/absl/log/internal/check_op.ho:r462d:R24e:p *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 T  a241k | e#Rdeepf(i)n ec oanbsstl&_;n
o      n| n                                ^u
ll/usr/local/clang/include/absl/base/nullability.h :_241N:o22n:n unote: lexpanded from macro 'absl_nonnull'l

        | 241                     ^ | 
#defiIn file included from ns2/util/coding/varint.cce: 24a:
bIn file included from s../src/s2/base/logging.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h_:N21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u461l:l1
:       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  461 | ABSL_LOG_INTERNAIn file included from Ls2/s2shapeutil_visit_crossing_edge_pairs.cc_:D18E:
FIn file included from I../src/s2/s2shapeutil_visit_crossing_edge_pairs.hN:E23_:
MIn file included from A../src/s2/s2crossing_edge_query.hK:E31_:
CIn file included from H../src/s2/s2padded_cell.hE:C23K:
_In file included from O../src/s2/s2cell_id.hP:_43S:
TIn file included from R../src/s2/s1angle.hI:N28G:
_In file included from E../src/s2/s2point.hX:T27E:
RIn file included from N../src/s2/s2coder.h(:
23      :
| In file included from ^/usr/local/clang/include/absl/status/status.h
:67:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h450::2925:
: /usr/local/clang/include/absl/strings/cord.h:note: 1079expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
33:   warning: 450type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
     1079  |   x ,a bxs,l :c:ocnosrtd _cihnatre*r naabls:l:_CnoorndnRuelpl*) 
a      b| s                        ^l
_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: Texpanded from macro 'absl_nonnull'a
ke  R241e | p#(d)e f&i&n;e
       a| b                                ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern templatIn file included from es2/s2shapeutil_visit_crossing_edge_pairs.cc :c18o:
nIn file included from s../src/s2/s2shapeutil_visit_crossing_edge_pairs.ht: 23c:
hIn file included from a../src/s2/s2crossing_edge_query.hr:*31 :
aIn file included from b../src/s2/s2padded_cell.hs:l23_:
nIn file included from o../src/s2/s2cell_id.hn:n43u:
lIn file included from l../src/s2/s1angle.h :M28a:
kIn file included from e../src/s2/s2point.hC:h27e:
cIn file included from k../src/s2/s2coder.hO:p23S:
tIn file included from r/usr/local/clang/include/absl/status/status.hi:n67g:
(In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29\:

/usr/local/clang/include/absl/strings/cord.h      :| 1116                              ^:
37: /usr/local/clang/include/absl/base/nullability.h:warning: 241:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]22
: note: expanded from macro 'absl_nonnull' 
1116 |    241  | c#odnesfti ncer ca_bisnlt_enronnanlu:l:lC r_cNCoonrnduSltla
t      e| *                     ^ 
absl_In file included from ns2/util/coding/varint.ccu:l24l:
aIn file included from b../src/s2/base/logging.hl:e21 :
MIn file included from a/usr/local/clang/include/absl/log/check.hy:b37e:
GIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.ht:C21r:
c/usr/local/clang/include/absl/log/internal/check_op.hC:o464r:d26S:t awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
()   464c | o n s t ;c
o      n| s                                    ^t
 u/usr/local/clang/include/absl/base/nullability.hn:s257i:g23n:e dnote:  expanded from macro 'absl_nullable'c
ha  r257* |  #adbesfli_nneo nanbuslll_)n;u
l      l| a                         ^b
le/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        241|  |                       ^#
define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23In file included from :
s2/util/coding/varint.ccIn file included from :../src/s2/s2crossing_edge_query.h24::
31In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2padded_cell.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2cell_id.h37::
43In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s1angle.h21::
28:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2point.h464::2726:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
1120:30  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi n1120e |   a bvsoli_dn oCnonpuylTlo A_rNroanynIumlpll
(      c| h                     ^a
r* absIn file included from ls2/util/coding/varint.cc_:n24o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from d/usr/local/clang/include/absl/log/check.hs:t37):
 In file included from c/usr/local/clang/include/absl/log/internal/check_impl.ho:n21s:
t/usr/local/clang/include/absl/log/internal/check_op.h;:
463      :| 1                             ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   463 | note: Aexpanded from macro 'absl_nonnull'BS
L_  L241O | G#_dIeNfTiEnReN AaLb_sDlE_FnIoNnEn_uMlAlK E__NCoHnEnCuKl_lO
P      _| S                     ^T
RING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:In file included from 30s2/util/coding/varint.cc:
:In file included from 24/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 70/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/container/internal/layout.h:
:In file included from 198/usr/local/clang/include/absl/log/internal/check_impl.h:
:21/usr/local/clang/include/absl/strings/str_cat.h:
:501/usr/local/clang/include/absl/log/internal/check_op.h::32465:: 1:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
    501465 |  | vAoBiSdL _ALpOpGe_nIdNPTiEeRcNeAsL(_sDtEdF:I:NsEt_rMiAnKgE*_ CaHbEsClK__nOoPn_nSuTlRlI NdGe_sEtX,T
E      R| N                               ^(
const v/usr/local/clang/include/absl/base/nullability.ho:i241d:*22 :a bnote: sexpanded from macro 'absl_nonnull'l
_n  o241n | n#udlelf)i;n
e       | a^b
sl/usr/local/clang/include/absl/log/internal/check_op.h_:n449o:n31n:u lnote: lexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
_No  n449n | u l le
x      t| e                     ^r
n template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonn     ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(strIn file included from _s2/s2shapeutil_coding.ccf:o28r:
mIn file included from a../src/s2/s2lax_polygon_shape.ht:_36i:
nIn file included from t../src/s2/s2polygon.he:r29n:
aIn file included from l/usr/local/clang/include/absl/container/flat_hash_map.h:::45V:
a/usr/local/clang/include/absl/container/internal/raw_hash_map.hl:i211In file included from ds2/s2text_format.cc:F:3o16:r:
 mIn file included from warning: a../src/s2/s2text_format.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t:
I34m:
pIn file included from   l../src/s2/mutable_s2shape_index.h211<: | C30 .:
 .In file included from A./usr/local/clang/include/absl/container/btree_map.hB>:S(66Lf:
_oIn file included from Ir/usr/local/clang/include/absl/container/internal/btree.hNm:Ta70Et:
R)In file included from ,N/usr/local/clang/include/absl/container/internal/layout.h
A:      L198| _:
          ^X/usr/local/clang/include/absl/strings/str_cat.h
(:i635n:s36e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_as  s635i | ginn,l iinnes evroti_do rS_tarsAspipgenn_di(msptld,: :&s&t,r i&n&g,*  tarbusel,_ ntornuneu,l
l      )|    ^{
}
/usr/local/clang/include/absl/container/internal/raw_hash_map.h      :| 133                                   ^:
52: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'241
:22:   note: 133expanded from macro 'absl_nonnull' | 
     241  |  # d e f i nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this)),              In file included from  s2/s2text_format.cc : 16 :
 In file included from  ../src/s2/s2text_format.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h :\30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                                                   ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/container/internal/btree.h::3170::
9In file included from :/usr/local/clang/include/absl/container/internal/layout.h :198note: :
macro 'ABSL_INTERNAL_IF_true' defined here/usr/local/clang/include/absl/strings/str_cat.h
:636:29   :31  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(th warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
is)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                        In file included from  s2/s2shapeutil_contains_brute_force.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_contains_brute_force.h\:
21      :
| In file included from           ^~~~../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(/usr/local/clang/include/absl/container/internal/btree_container.hV:a536l:i24d:F owarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]m
atI  m536p | l < A r g s . . . > ( s ) ,   " b a df aflosrem)a;t
       t| r                       ^a
p"/usr/local/clang/include/absl/container/internal/btree_container.h):)496):
9      :|                       ^
note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, t  r636u | ev,o
i      d|    ^S
tr/usr/local/clang/include/absl/container/internal/btree_container.hA:p509p:e52n:d (note: sexpanded from macro 'ABSL_INTERNAL_X't
d::  s509t | r i n g *   a b s l _AnBoSnLn_uIlNlT EdReNsAtL,_ AcToTnRsItB UATlEp_hCaANPuTmU&R EaD)_;B
Y      (| t                            ^h
is)),/usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s\l
_      n| o                                                   ^n
nul/usr/local/clang/include/absl/container/internal/common.hl: 31_:N9o:n nnote: umacro 'ABSL_INTERNAL_IF_true' defined herel
l
         | 31                     ^ | 
#define ABSL_INTERNAL_IF_true(if_satisfied, ...) iIn file included from fs2/s2text_format.cc_:s16a:
tIn file included from i../src/s2/s2text_format.hs:f34i:
eIn file included from d../src/s2/mutable_s2shape_index.h
:      30| :
        ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29:In file included from  s2/s2shapeutil_build_polygon_boundaries.cc:warning: 24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
  /usr/local/clang/include/absl/container/internal/btree_container.h637: | 535v:o3i:d  warning: S'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
rAppe  n535d | ( s tAdB:S:Ls_tIrNiTnEgR*N AaLb_sXl(_innosnenrutl_lo rd_eassts,i gcno,n sitn sAelrpth_aoNru_ma&s sai,g
n      _| i                            ^m
pl,/usr/local/clang/include/absl/base/nullability.h :c241o:n22s:t  note: &expanded from macro 'absl_nonnull',
 &  &241, |  #tdreufei,n
e       | a  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~b
sl  _536n | o n n u l l   _ N o n n u l l 
        |                       ^f
alse);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  In file included from 509s2/s2text_format.cc | : 16 :
 In file included from  ../src/s2/s2text_format.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h :A30B:
SIn file included from L/usr/local/clang/include/absl/container/btree_map.h_:I66N:
TIn file included from E/usr/local/clang/include/absl/container/internal/btree.hR:N70A:
LIn file included from _/usr/local/clang/include/absl/container/internal/layout.hA:T198T:
R/usr/local/clang/include/absl/strings/str_cat.hI:B639U:T29E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TURE  D639_ | BvYo(itdh iSst)r)A,p p e n d ( s t d : : s t r i n g *   a b s l _ n\o
n      n| u                                              ^~~~l
l dest, /usr/local/clang/include/absl/container/internal/btree_container.hc:o535n:s3t:  Awarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
ha/usr/local/clang/include/absl/container/internal/btree_container.hN:u511m:&52 :a ,note: 
expanded from macro 'ABSL_INTERNAL_X'      
|                             ^
  511/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lA_TnToRnInBuUlTlE __CNAPoTnUnRuElDl_
B      Y| (                     ^t
his)))                    In file included from  s2/s2text_format.cc : 16 :
\In file included from 
../src/s2/s2text_format.h      :| 34                                                   ^:

In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/container/internal/common.h30::
32In file included from :/usr/local/clang/include/absl/container/btree_map.h9::66 :
In file included from note: /usr/local/clang/include/absl/container/internal/btree.hmacro 'ABSL_INTERNAL_IF_false' defined here:
70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h   :32198 | :
#/usr/local/clang/include/absl/strings/str_cat.hd:e641f:i29n:e  warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_  I641N | TvEoRiNdA LS_tIrFA_pfpalesned((isft_ds:a:tsitsrfiinegd*,  a.b.s.l)_ n_o_nVnAu_lAlR GdSe_s_t
,       | c        ^o
nst AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:In file included from 34s2/s2shapeutil_build_polygon_boundaries.cc:
:In file included from 24../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 67/usr/local/clang/include/absl/container/btree_map.h:
:66/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 538/usr/local/clang/include/absl/container/internal/btree.h::2370::
 In file included from /usr/local/clang/include/absl/container/internal/layout.hwarning: :198passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

/usr/local/clang/include/absl/strings/str_cat.h:646  :53836 | :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       646  |  i n l i n e   vtoriude )S;t
r      A| p                      ^p
en/usr/local/clang/include/absl/container/internal/btree_container.hd:(496s:t9d:: :note: smacro 'ABSL_INTERNAL_X' defined heret
rin  g496* |  #adbesfli_nneo nAnBuSlLl_ IdNeTsEtR,N AcLo_nXs(tF uAnlcp,h aCNaulml&e ea,, 
K      Q| u                                   ^a
l,/usr/local/clang/include/absl/base/nullability.h :M241Q:u22a:l ,note:  expanded from macro 'absl_nonnull'K
Va  l241u | e#,d eMfVianleu ea,b s.l._.n)o n n u l l\ 
_      N| o        ^n
null
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INT/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                ull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
ERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, coIn file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:In file included from 23s2/s2shapeutil_visit_crossing_edge_pairs.cc:
:In file included from 18/usr/local/clang/include/absl/crc/crc32c.h:
:In file included from 32../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:
:23/usr/local/clang/include/absl/strings/str_format.h:
:In file included from 115../src/s2/s2crossing_edge_query.h::5231::
 In file included from ../src/s2/s2padded_cell.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from ../src/s2/s2cell_id.h:43:
  In file included from 115../src/s2/s1angle.h | : 28 :
 In file included from  ../src/s2/s2point.h : 27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
sIn file included from t/usr/local/clang/include/absl/status/status.hr:_67f:
oIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hm:a29t:
_/usr/local/clang/include/absl/strings/cord.hi:n1183t:e47r:n awarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:Par s1183e | d F o r m a t B a s e *   a b s l _ n o n n u l l   p c ) 
        |                                                     ^ 
    /usr/local/clang/include/absl/base/nullability.hC:o241r:d22R:e pnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea brselp_)n
o      n| n                                              ^u
ll /usr/local/clang/include/absl/base/nullability.h_:N257o:n23n:u lnote: lexpanded from macro 'absl_nullable'

      |                      ^  
257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:155:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  155 |   explicit FormatCountCapture(int* absl_nonnull p) : p_(p) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:164:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:165:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   int* absl_nonnull p_;
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
nst &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satIn file included from is2/s2shapeutil_contains_brute_force.ccs:f18i:
eIn file included from d../src/s2/s2shapeutil_contains_brute_force.h,: 21.:
.In file included from .../src/s2/s2point.h): 27_:
_In file included from V../src/s2/s2coder.hA:_23A:
RIn file included from G/usr/local/clang/include/absl/status/status.hS:_67_:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :        ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* In file included from as2/s2shapeutil_build_polygon_boundaries.ccb:s24l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l543 :d23s:t ,warning: 
      passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]| 
                                          ^
  543/usr/local/clang/include/absl/base/nullability.h | : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i nter uaeb)s;l
_      n| o                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name#In file included from #s2/s2shapeutil_contains_brute_force.ccI:m18p:
lIn file included from (../src/s2/s2shapeutil_contains_brute_force.h : 21 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from \/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                               ^In file included from 
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::82257:
:In file included from 23/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:: 23:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/crc/crc32c.h
:32:
  257/usr/local/clang/include/absl/strings/str_format.h | :#440d:e24f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
absl_  n440u | lilnatb lFeP r_iNnutlFl(asbtlde:
:      F| I                      ^L
E* absl_In file included from ns2/util/coding/varint.cco:n24n:
uIn file included from l../src/s2/base/logging.hl: 21o:
uIn file included from t/usr/local/clang/include/absl/log/check.hp:u37t:
,In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hc:o21n:
s/usr/local/clang/include/absl/log/internal/check_op.ht: 503F:o1r:m awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
pe/usr/local/clang/include/absl/log/internal/check_op.hc:<498A:r35g:s .note: .expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'.
>&   f498o | r m a t , 
       i| n                       ^t
 v1/usr/local/clang/include/absl/base/nullability.h,: 241i:n22t:  vnote: 2expanded from macro 'absl_nonnull',
 c  o241n | s#td ecfhianre*  aabbssll__nnoonnnnuullll  _eNxopnrntuelxlt
)       | {                     ^ 
                \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :s2/s2shapeutil_visit_crossing_edge_pairs.cc23::
18In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :../src/s2/s2shapeutil_visit_crossing_edge_pairs.h32::
23:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :../src/s2/s2crossing_edge_query.h503::3120:
:In file included from  ../src/s2/s2padded_cell.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2cell_id.h:43:
  In file included from 503../src/s2/s1angle.h | : 28 :
FIn file included from o../src/s2/s2point.hr:m27a:
tIn file included from R../src/s2/s2coder.ha:w23S:
iIn file included from n/usr/local/clang/include/absl/status/status.hk:(67T:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
l_/usr/local/clang/include/absl/strings/cord.hn:o1222n:n52u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
aw)   /1222/ |  iNnOlLiInNeT 
v      o| i                   ^d
 Co/usr/local/clang/include/absl/base/nullability.hr:d241:::22I:n lnote: iexpanded from macro 'absl_nonnull'n
eR  e241p | :#:dSewfaipn(eC oarbds:l:_InnolninnuelRle p_*N oanbnsull_ln
o      n| n                     ^u
ll rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:77:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   77 | [[nodiscard]] bool SimpleAtof(absl::string_view str, float* absl_nonnull out);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[nodiscard]] bool SimpleAtod(absl::string_view str, double* absl_nonnull out);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |  In file included from  s2/s2shapeutil_contains_brute_force.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_contains_brute_force.h : 21 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h :t23r:
uIn file included from e/usr/local/clang/include/absl/status/status.h):;67
:
      In file included from | /usr/local/clang/include/absl/status/internal/status_internal.h                      ^:
29:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::49682::
9In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h :23note: :
macro 'ABSL_INTERNAL_X' defined hereIn file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32:
  /usr/local/clang/include/absl/strings/str_format.h496: | 860#:d43e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ABS  L860_ | I N TfErRiNeAnLd_ Xv(oFiudn cA,b sClaFlolremea,t FKlQuusahl(,F oMrQmuaatlS,i nKkV*a laubes,l _MnVoanlnuuel,l  .s.i.n)k , 
        |                                            ^\

      |         ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:/usr/local/clang/include/absl/container/internal/btree_container.h60::546 :3warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  867 |     546e | x p lAiBcSiLt_ IFNoTrEmRaNtASLi_nXk((isntsre_rfto_romra_ta_sisnitgenr,n ailn:s:eFrotr_moart_SaisnskiIgmnp_li*m palb,s l&_&n,o ncnounlslt  s&),
       t| r                                                           ^u
e,/usr/local/clang/include/absl/base/nullability.h
:      241| :  ^22
: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'509
:52  :241  | note: #expanded from macro 'ABSL_INTERNAL_X'd
efi  n509e |   a b s l _ n o n n uAlBlS L__NIoNnTnEuRlNlA
L      _| A                     ^T
TRIBUTE_CAPTURED_BY(this)In file included from )s2/s2shapeutil_contains_brute_force.cc,: 18 :
 In file included from  ../src/s2/s2shapeutil_contains_brute_force.h : 21 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h\:
29      :
| In file included from                                                    ^/usr/local/clang/include/absl/strings/cord.h
:82:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h31::239:
:In file included from  /usr/local/clang/include/absl/crc/crc32c.h:note: 32macro 'ABSL_INTERNAL_IF_true' defined here:

/usr/local/clang/include/absl/strings/str_format.h:869   :3140 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   869A | B S Ls_tIrN_TfEoRrNmAaLt__IiFn_tterrunea(li:f:_FsoartmiastfSiiendk,I m.p.l.*)  aibfs_ls_antoinsnfuileld 
s      i| n        ^k
_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2shapeutil_build_polygon_boundaries.cc
:24:
  In file included from 241/usr/local/clang/include/absl/container/btree_map.h | :#67d:
e/usr/local/clang/include/absl/container/internal/btree_container.hf:i546n:e3 :a bwarning: s'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
_nonn  u546l | l   _ANBoSnLn_uIlNlT
E      R| N                     ^A
L_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:112:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  112 |                                  int_type* absl_nonnull out);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::strinIn file included from gs2/s2shapeutil_visit_crossing_edge_pairs.cc_:v18i:
eIn file included from w../src/s2/s2shapeutil_visit_crossing_edge_pairs.h :t23e:
xIn file included from t../src/s2/s2crossing_edge_query.h,: 31i:
nIn file included from t../src/s2/s2padded_cell.h3:223_:
tIn file included from *../src/s2/s2cell_id.h :a43b:
sIn file included from l../src/s2/s1angle.h_:n28o:
nIn file included from n../src/s2/s2point.hu:l27l:
 In file included from v../src/s2/s2coder.ha:l23u:
eIn file included from ,/usr/local/clang/include/absl/status/status.h
:      67| :
                                                        ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/strings/cord.h::221245:: 38:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  241 | #d e1245f | iinnel ianbes la_bnsoln:n:uclolr d__Nionntneurlnla
l:        547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(inser:t_oCro_radsRseipg*n ,a bisnls_enrutl_loarb_laes sCiogrnd_:i:mIpnll,i n&e&R,e p&:&:,t rfeael(s)e
,      
|       |                                      ^  ^

/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_/usr/local/clang/include/absl/base/nullability.hC:A257P:T23U:R Enote: Dexpanded from macro 'absl_nullable'_
BY(thi  s257) | )#,d e f i n e   a b s l _ n u l l a b l e   _ N u l\l
a      b| l                                                   ^e

      | /usr/local/clang/include/absl/container/internal/common.h                      ^:
32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPIn file included from Ts2/s2shapeutil_visit_crossing_edge_pairs.ccU:R18E:
DIn file included from _../src/s2/s2shapeutil_visit_crossing_edge_pairs.hB:Y23(:
tIn file included from h../src/s2/s2crossing_edge_query.hi:s31):
)In file included from )../src/s2/s2padded_cell.h : 23 :
 In file included from  ../src/s2/s2cell_id.h : 43 :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from \/usr/local/clang/include/absl/status/status.h
:      67| :
                                                   ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/container/internal/common.h29::
32:/usr/local/clang/include/absl/strings/cord.h9::1258 :36note: :macro 'ABSL_INTERNAL_IF_false' defined here 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
32 | #d e1258f | iinnel iAnBeS Lc_oIrNdT_EiRnNtAeLr_nIaFl_:f:aClosred(iRfe_psFaltaits*f iaebds,l _.n.o.n)n u_l_lV
A      _| A                                   ^R
GS/usr/local/clang/include/absl/base/nullability.h_:_241
:      22| : note: expanded from macro 'absl_nonnull'1
:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
defi/usr/local/clang/include/absl/log/internal/check_op.hn:e498 :a35b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
onnul  l498  | _ N o n n u liln
t       | v                     ^1
, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:212:22: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  212 |   using pointer = T* absl_nullability_unknown;
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | A|                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2shapeutil_visit_crossing_edge_pairs.cc :18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23  :
241In file included from  | ../src/s2/s2crossing_edge_query.h#:d31e:
fIn file included from i../src/s2/s2padded_cell.hn:e23 :
aIn file included from b../src/s2/s2cell_id.hs:l43_:
nIn file included from o../src/s2/s1angle.hn:n28u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from n../src/s2/s2coder.hn:u23l:
lIn file included from 
/usr/local/clang/include/absl/status/status.h      :| 67                     ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline In file included from vs2/s2shapeutil_coding.cco:i28d:
 In file included from C../src/s2/s2lax_polygon_shape.ho:r36d:
:In file included from :../src/s2/s2polygon.hI:n34l:
iIn file included from n../src/s2/mutable_s2shape_index.he:R30e:
pIn file included from :/usr/local/clang/include/absl/container/btree_map.h::E66m:
pIn file included from l/usr/local/clang/include/absl/container/internal/btree.ha:c70e:
TIn file included from r/usr/local/clang/include/absl/container/internal/layout.he:e198(:
CIn file included from o/usr/local/clang/include/absl/strings/str_cat.hr:d116R:
eIn file included from p/usr/local/clang/include/absl/strings/internal/stringify_sink.h*: 23a:
b/usr/local/clang/include/absl/strings/numbers.hs:l166_:n57o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l re  p166, | 
b      o| o                                                  ^l
 sa/usr/local/clang/include/absl/base/nullability.hf:e241_:s22t:r tnote: oexpanded from macro 'absl_nonnull'u
8_  b241a | s#ed(eafbisnle: :asbtsrli_nngo_nvniuelwl  t_eNxotn,n uuliln
t      8| _                     ^t
* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | In file included from bs2/s2shapeutil_visit_crossing_edge_pairs.cco:o18l:
 In file included from s../src/s2/s2shapeutil_visit_crossing_edge_pairs.ha:f23e:
_In file included from s../src/s2/s2crossing_edge_query.ht:r31t:
oIn file included from u../src/s2/s2padded_cell.h1:623_:
bIn file included from a../src/s2/s2cell_id.hs:e43(:
aIn file included from b../src/s2/s1angle.hs:l28::
:In file included from s../src/s2/s2point.ht:r27i:
nIn file included from g../src/s2/s2coder.h_:v23i:
eIn file included from w/usr/local/clang/include/absl/status/status.h :t67e:
xIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h,: 29u:
i/usr/local/clang/include/absl/strings/cord.hn:t12751:651_:t *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl_ n1275o | ninnulliln ev avlouied, 
C      o| r                                                          ^d
::I/usr/local/clang/include/absl/base/nullability.hn:l241i:n22e:R enote: pexpanded from macro 'absl_nonnull':
:E  m241p | l#adceefTirneee (aCbosrld_Rneopn*n ualbls l__Nnoonnnnuullll
       r| e                     ^p
,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2shapeutil_coding.ccn:e28 :
aIn file included from b../src/s2/s2lax_polygon_shape.hs:l36_:
nIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :_30N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from 
/usr/local/clang/include/absl/container/internal/btree.h      :| 70                     ^:

In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull valIn file included from us2/s2shapeutil_visit_crossing_edge_pairs.cce:,18
:
      In file included from | ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h                                                          ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2crossing_edge_query.h::24131::
22In file included from :../src/s2/s2padded_cell.h :23note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2cell_id.h:43  :
241In file included from  | ../src/s2/s1angle.h#:d28e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h :_29N:
o/usr/local/clang/include/absl/strings/cord.hn:n1282u:l47l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1282 | inline void CordIn file included from :s2/s2shapeutil_coding.cc::I28n:
lIn file included from i../src/s2/s2lax_polygon_shape.hn:e36R:
eIn file included from p../src/s2/s2polygon.h:::34S:
eIn file included from t../src/s2/mutable_s2shape_index.hT:r30e:
eIn file included from (/usr/local/clang/include/absl/container/btree_map.hC:o66r:
dIn file included from R/usr/local/clang/include/absl/container/internal/btree.he:p70*:
 In file included from aIn file included from /usr/local/clang/include/absl/container/internal/layout.hbs2/s2wedge_relations.cc:s:198l18:
_:
In file included from nIn file included from /usr/local/clang/include/absl/strings/str_cat.ho../src/s2/s2wedge_relations.h:n:116n24:
u:
In file included from lIn file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hl../src/s2/s2point.h: :23r25:
e/usr/local/clang/include/absl/strings/numbers.h:
p:In file included from ,172../src/s2/util/coding/coder.h
::      5936| :                                              ^:
 
In file included from warning: ../src/s2/base/casts.h/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::
34241:
:In file included from   22/usr/local/clang/include/absl/log/log.h172 | ::b o209note: o:
expanded from macro 'absl_nonnull'lIn file included from 
 /usr/local/clang/include/absl/log/internal/log_impl.hs  a:241f22 | e#:
d_esIn file included from ft/usr/local/clang/include/absl/log/internal/log_message.hir:nte47o u:
a6In file included from b4s/usr/local/clang/include/absl/log/internal/structured_proto.h_l:b_a27nso:
en(In file included from nau/usr/local/clang/include/absl/log/internal/proto.hbls:ll 34:_::
Nso/usr/local/clang/include/absl/types/span.htnr:ni733unl:gl_31
v:      i | ewarning:                      ^wtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 
text,   u733i | ncto6n4s_tte*x parb sSlp_anno<nTn>u lMla kveaSlpuaen,(
T      *|                                                            ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e   p241t | r# dAeBfSiLn_eA TaTbRsIlB_UnToEn_nLuIlFlE T_INMoEn_nBuOlUlNIn file included from 
Ds2/s2shapeutil_visit_crossing_edge_pairs.cc      ,:
| 18                     ^      :

| In file included from                               ^../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
:23:
In file included from ../src/s2/s2crossing_edge_query.h/usr/local/clang/include/absl/base/nullability.h::31257:
:In file included from 23../src/s2/s2padded_cell.h:: 23note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/s2cell_id.hIn file included from :43  s2/s2shapeutil_coding.cc:
257:In file included from  | 28#../src/s2/s1angle.h:
d:In file included from e28../src/s2/s2lax_polygon_shape.hf:
:iIn file included from n36../src/s2/s2point.he:
: In file included from 27a../src/s2/s2polygon.h:
b:In file included from s34../src/s2/s2coder.hl:
:_In file included from 23n../src/s2/mutable_s2shape_index.h:
u:In file included from l30/usr/local/clang/include/absl/status/status.hl:
:aIn file included from 67b/usr/local/clang/include/absl/container/btree_map.h:
l:In file included from e66/usr/local/clang/include/absl/status/internal/status_internal.h :
:_In file included from 29N/usr/local/clang/include/absl/container/internal/btree.h:
u:/usr/local/clang/include/absl/strings/cord.hl70:l:
1290aIn file included from :b/usr/local/clang/include/absl/container/internal/layout.h54l::e198 
warning: :
      type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from | 
/usr/local/clang/include/absl/strings/str_cat.h                      ^:
116 :
1290In file included from  | /usr/local/clang/include/absl/strings/internal/stringify_sink.hi:n23l:
i/usr/local/clang/include/absl/strings/numbers.hn:e175 :v41o:i dwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ord:  :175I | n l i n e R e p::Set        ^Tr
eeOrEmpty(CordIn file included from Rs2/s2wedge_relations.cce:p18*:
 In file included from a../src/s2/s2wedge_relations.hb:s24l:
_In file included from n../src/s2/s2point.hu:l25l:
aIn file included from b../src/s2/util/coding/coder.hl:e36 :
rIn file included from e../src/s2/base/casts.hp:,34
:
      In file included from | /usr/local/clang/include/absl/log/log.h                                                     ^:
209:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_impl.h::25722::
23In file included from :/usr/local/clang/include/absl/log/internal/log_message.h :note: 47expanded from macro 'absl_nullable':

In file included from In file included from   s2/s2shapeutil_build_polygon_boundaries.cc/usr/local/clang/include/absl/log/internal/structured_proto.h257:: | 2427#:
d:
In file included from eIn file included from /usr/local/clang/include/absl/container/btree_map.hf/usr/local/clang/include/absl/log/internal/proto.h:i:67n34:
e:
 /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/types/span.ha::b551s739:l:79_21:n: u warning: lwarning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
a
ble     551_739 | N |  Su lpAlaBaSnb<lTL>e_ 
IM      Na| T                      ^kE
eRSNpAaLn_(XT(*i nasbesrlt__nourl_laasbslieg nb,e giinns eArBtS_Lo_rA_TaTsRsIiBgUnT_Ei_mLpIlF,E T&I&M,E _&B&O,U NfDa,l
s      e| ,                    ^ 
tru/usr/local/clang/include/absl/base/nullability.he:)257;:
23      :|                                                                                ^note: 
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/container/internal/btree_container.h  :257496 | :#9d:e fnote: imacro 'ABSL_INTERNAL_X' defined heren
e a  b496s | l#_dneuflilnaeb lAeB S_LN_uIlNlTaEbRlNeA
L      _| X                      ^(
Func, Callee, KQuIn file included from as2/s2wedge_relations.ccl:,18 :
MIn file included from Q../src/s2/s2wedge_relations.hu:a24l:
,In file included from  ../src/s2/s2point.hK:V25a:
lIn file included from u../src/s2/util/coding/coder.he:,36 :
MIn file included from V../src/s2/base/casts.ha:l34u:
eIn file included from ,/usr/local/clang/include/absl/log/log.h :.209.:
.In file included from )/usr/local/clang/include/absl/log/internal/log_impl.h : 22 :
 In file included from  /usr/local/clang/include/absl/log/internal/log_message.h\:
47      :
| In file included from         ^/usr/local/clang/include/absl/log/internal/structured_proto.h
:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_fIn file included from as2/s2wedge_relations.ccl:s18e:
(In file included from i../src/s2/s2wedge_relations.hf:_24s:
aIn file included from t../src/s2/s2point.hi:s25f:
iIn file included from e../src/s2/util/coding/coder.hd:,36 :
.In file included from .../src/s2/base/casts.h.:)34 :
_In file included from _/usr/local/clang/include/absl/log/log.hV:A209_:
AIn file included from R/usr/local/clang/include/absl/log/internal/log_impl.hG:S22_:
_In file included from 
/usr/local/clang/include/absl/log/internal/log_message.h      :| 47        ^:

In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794In file included from :s2/s2shapeutil_build_polygon_boundaries.cc8::24 :
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:  551794: | 3 :   warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
* a  b551s | l _ nAuBlSlLa_bIlNeT EpRtNrA LA_BXS(Li_nAsTeTrRtI_BoUrT_Ea_sLsIiFgEnT,I MiEn_sBeOrUtN_Do,r _saiszsei_gtn _siimzpel),  n&o&e,x c&e&p,t  f{a
l      s| e       ^,
 t/usr/local/clang/include/absl/base/nullability.hr:u257e:)23;:
       note: | expanded from macro 'absl_nullable'  ^

  /usr/local/clang/include/absl/container/internal/btree_container.h257: | 511#:d52e:f inote: nexpanded from macro 'ABSL_INTERNAL_X'e
 ab  s511l | _ n u l l a b l e   _ANBuSlLl_aIbNlTeE
R      N| A                      ^L
_ATTRIBUTE_CAPTURED_BY(this)))                 In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h :\24
:
      In file included from | ../src/s2/s2point.h                                                   ^:
25:
In file included from /usr/local/clang/include/absl/container/internal/common.h../src/s2/util/coding/coder.h::3136::
9In file included from :../src/s2/base/casts.h :note: 34macro 'ABSL_INTERNAL_IF_true' defined here:

In file included from /usr/local/clang/include/absl/log/log.h:   20931:
 | In file included from #/usr/local/clang/include/absl/log/internal/log_impl.hd:e22f:
iIn file included from n/usr/local/clang/include/absl/log/internal/log_message.he: 47A:
BIn file included from S/usr/local/clang/include/absl/log/internal/structured_proto.hL:_27I:
NIn file included from T/usr/local/clang/include/absl/log/internal/proto.hE:R34N:
A/usr/local/clang/include/absl/types/span.hL:_799I:F32_:t rwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
(if  _799s | aStpiasnf<iceodn,s t. .T.>)  Miafk_esCaotnisstfSipeadn
(      T| *        ^ 
absl_nullable beIn file included from gIn file included from s2/s2shapeutil_build_polygon_boundaries.cci:s2/s2shapeutil_visit_crossing_edge_pairs.ccn24:
:
18      In file included from :
| /usr/local/clang/include/absl/container/btree_map.hIn file included from                                ^:../src/s2/s2shapeutil_visit_crossing_edge_pairs.h
67::
23/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree_container.h:
::In file included from 257551../src/s2/s2crossing_edge_query.h:::23331:::
  In file included from note: ../src/s2/s2padded_cell.hexpanded from macro 'absl_nullable'warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]23
:
  In file included from 257../src/s2/s2cell_id.h | :  #43d551:
e | fIn file included from  i../src/s2/s1angle.h n:Ae28 B:
aSIn file included from bL../src/s2/s2point.h_s:Il27N_:
TnIn file included from Eu../src/s2/s2coder.hRl:Nl23Aa:
LbIn file included from _l/usr/local/clang/include/absl/status/status.hXe:( 67i_:
nNIn file included from su/usr/local/clang/include/absl/status/internal/status_internal.hel:rl29ta:
_b/usr/local/clang/include/absl/strings/cord.hlo:er
1301_      :a| 56s                      ^:s
 iwarning: gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
, inse r1301In file included from t | _s2/s2wedge_relations.ccion:rl18_ia:
nsIn file included from es../src/s2/s2wedge_relations.h iv:gon24i_:
diIn file included from  m../src/s2/s2point.hCp:ol25r,d:
 :&In file included from :&I../src/s2/util/coding/coder.h,n :l&36i&n:
,e In file included from Rfe../src/s2/base/casts.hapl::s:34eC,:
o mIn file included from tmr/usr/local/clang/include/absl/log/log.hiu:teT209)r:
;e
In file included from e      (/usr/local/clang/include/absl/log/internal/log_impl.h| c:  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o22
n:
sIn file included from /usr/local/clang/include/absl/container/internal/btree_container.ht/usr/local/clang/include/absl/log/internal/log_message.h: :511C47:o:
47rIn file included from :d/usr/local/clang/include/absl/log/internal/structured_proto.h R:note: e27p:
*In file included from  /usr/local/clang/include/absl/log/internal/proto.ha:Bb34SsL:
l__/usr/local/clang/include/absl/types/span.hLnO:uGl801_lI:aNb32TlE:eR  Nowarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lLd
__CrH  eEpC801,K | 
_       O | P                                                       ^_ 
I M /usr/local/clang/include/absl/base/nullability.h P:L 257( :C 23h :e c  k note: _expanded from macro 'absl_nullable' L
 T   , 257   | < #)d 
e       f | i^ n
 e   a/usr/local/clang/include/absl/log/internal/check_op.hb :s 488lT:_*32n :ua lbnote: lsexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'la
_bnluel l  _a488Nb | ul le li anbellniend
e)        | c                      ^no
onesxtceexpptr  {c
o      n| s                               ^In file included from t
s2/s2shapeutil_visit_crossing_edge_pairs.cc :c/usr/local/clang/include/absl/base/nullability.h18h::
a257In file included from r:../src/s2/s2shapeutil_visit_crossing_edge_pairs.h*23: :23a :
bnote: In file included from sexpanded from macro 'absl_nullable'../src/s2/s2crossing_edge_query.hl
:_31  n:
257uIn file included from l | ../src/s2/s2padded_cell.h#l:da23eb:
lfIn file included from ei../src/s2/s2cell_id.h n:ne43a :
maIn file included from eb../src/s2/s1angle.h#s:#l28I_:
nmIn file included from pu../src/s2/s2point.hll:(l27 a:
 bIn file included from  l../src/s2/s2coder.he :  23_ :
 NIn file included from  u/usr/local/clang/include/absl/status/status.h l: l67 a:
 bIn file included from  l/usr/local/clang/include/absl/status/internal/status_internal.h e: 
29       :
 | /usr/local/clang/include/absl/strings/cord.h                       ^: 
1302\:
50      :|                                 ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257: 231302: |   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l l a b l e 
       C| o                      ^r
dRep* absl_nonnull rIn file included from es2/util/coding/varint.ccp:,24
:
      In file included from | ../src/s2/base/logging.h                                                 ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/check.h::24137::
22In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.h
:505:  1241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fi/usr/local/clang/include/absl/log/internal/check_op.hn:e489 :a47b:s lnote: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
onnu  l489l |   _ N o n n ucloln
s      t|                       ^T
1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2shapeutil_visit_crossing_edge_pairs.cc      :| 18                     ^:

In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/util/coding/varint.cc::25724::
23In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/check.h:37  :
257In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
f/usr/local/clang/include/absl/log/internal/check_op.hi:n505e: 1a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nu/usr/local/clang/include/absl/log/internal/check_op.hl:l497a:b32l:e  note: _expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'N
ulla  b497l | e 
       i| n                      ^l
ine constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, In file included from is2/s2shapeutil_visit_crossing_edge_pairs.ccn:t18 :
vIn file included from 2../src/s2/s2shapeutil_visit_crossing_edge_pairs.h,: 23c:
oIn file included from n../src/s2/s2crossing_edge_query.hs:t31 :
cIn file included from h../src/s2/s2padded_cell.ha:r23*:
 In file included from a../src/s2/s2cell_id.hb:s43l:
_In file included from n../src/s2/s1angle.ho:n28n:
uIn file included from l../src/s2/s2point.hl: 27e:
xIn file included from p../src/s2/s2coder.hr:t23e:
xIn file included from t/usr/local/clang/include/absl/status/status.h): 67{:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1321 : 48 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  \
      |                                   ^ 
1321 | i/usr/local/clang/include/absl/base/nullability.hn:l241i:n22e:  vnote: oexpanded from macro 'absl_nonnull'i
d   C241o | r#dd:e:fIinnlei naebRselp_:n:oCnonpuylTlo A_rNroanyn(uclhla
r      *|                       ^a
bsl_nonnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                  absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'555
:3:   241 | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
efi  n555e |   a bAsBlS_Ln_oInNnTuElRlN A_LN_oXn(niunlsle
r      t| _                     ^
or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNIn file included from As2/s2shapeutil_visit_crossing_edge_pairs.ccL:_18A:
TIn file included from T../src/s2/s2shapeutil_visit_crossing_edge_pairs.hR:I23B:
UIn file included from T../src/s2/s2crossing_edge_query.hE:_31C:
AIn file included from P../src/s2/s2padded_cell.hT:U23R:
EIn file included from D../src/s2/s2cell_id.h_:B43Y:
(In file included from t../src/s2/s1angle.hh:i28s:
)In file included from )../src/s2/s2point.h,: 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1514 : 29 :  \warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                                                    ^
 1514/usr/local/clang/include/absl/container/internal/common.h | : 32 : 9 :c onote: rmacro 'ABSL_INTERNAL_IF_false' defined hered
_in   t32e | r#ndaelf:i:nCeo rAdBRSeLp_*I NaTbEsRlN_AnLo_nInFu_lfla ltsree(ei)f _{s
a      t| i                            ^s
fi/usr/local/clang/include/absl/base/nullability.he:d241,: 22.:. .note: )expanded from macro 'absl_nonnull' 
__  V241A | _#AdReGfSi_n_e
       a| b        ^s
l_nonnulIn file included from ls2/s2shapeutil_build_polygon_boundaries.cc :_24N:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u67l:
l/usr/local/clang/include/absl/container/internal/btree_container.h
:      555| :                     ^3
: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, constIn file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |   In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.cc : 18 :
cIn file included from o../src/s2/s2shapeutil_visit_crossing_edge_pairs.hn:s23t:
 In file included from T../src/s2/s2crossing_edge_query.h1:&31 :
vIn file included from 1../src/s2/s2padded_cell.h,: 23c:
oIn file included from n../src/s2/s2cell_id.hs:t43 :
TIn file included from 2../src/s2/s1angle.h&: 28v:
2In file included from ,../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.ht: 23c:
hIn file included from a/usr/local/clang/include/absl/status/status.hr:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n1525n:u29l:l  warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
prt e1525x | t )   {  c o r d _\i
n      t| e                                              ^r
na/usr/local/clang/include/absl/base/nullability.hl::241::C22o:r dnote: Rexpanded from macro 'absl_nonnull'e
p*   241a | b#sdle_fnionnen ualbls lt_rneoen)n u{l
l       | _                            ^N
on/usr/local/clang/include/absl/base/nullability.hn:u241l:l22
:       | note:                      ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | charIn file included from *s2/s2shapeutil_visit_crossing_edge_pairs.cc :a18b:
sIn file included from l../src/s2/s2shapeutil_visit_crossing_edge_pairs.h_:n23o:
nIn file included from n../src/s2/s2crossing_edge_query.hu:l31l:
 In file included from F../src/s2/s2padded_cell.ha:s23t:
IIn file included from n../src/s2/s2cell_id.ht:T43o:
BIn file included from u../src/s2/s1angle.hf:f28e:
rIn file included from (../src/s2/s2point.hu:i27n:
tIn file included from 3../src/s2/s2coder.h2:_23t:
 In file included from n/usr/local/clang/include/absl/status/status.h,: 67c:
hIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hr:*29 :
a/usr/local/clang/include/absl/strings/cord.hb:s1530l:_55n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll o u1530t | _isntlri)n
e       | C      ^o
rd::/usr/local/clang/include/absl/base/nullability.hC:h241u:n22k:I tnote: eexpanded from macro 'absl_nonnull'r
ato  r241: | :#dCehfuinnkeI taebrsalt_onro(ncnounlslt  _CNoorndn*u lalb
s      l| _                     ^n
onnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2shapeutil_coding.cc22::28 :
In file included from note: ../src/s2/s2lax_polygon_shape.hexpanded from macro 'absl_nonnull':
36:
In file included from   ../src/s2/s2polygon.h241: | 34#:
dIn file included from e../src/s2/mutable_s2shape_index.hf:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o70n:
nIn file included from u/usr/local/clang/include/absl/container/internal/layout.hl:l198 :
_In file included from N/usr/local/clang/include/absl/strings/str_cat.ho:n116n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/stringify_sink.hl:
23      :
| /usr/local/clang/include/absl/strings/numbers.h                     ^:
200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),            5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
            \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const charIn file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/varint.cc:24:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl,In file included from  s2/s2shapeutil_visit_crossing_edge_pairs.ccc:o18n:
sIn file included from t../src/s2/s2shapeutil_visit_crossing_edge_pairs.h :&23,:
 In file included from &../src/s2/s2crossing_edge_query.h&:,31
:
      In file included from | ../src/s2/s2padded_cell.h  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
23:
In file included from ../src/s2/s2cell_id.h  :57543 | :
 In file included from  ../src/s2/s1angle.h : 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 /usr/local/clang/include/absl/status/status.h : 725t:r38u:e ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
rue,   725c | o n sstt_aittiecr asttoart(uhsi_nitn)t eArBnSaLl_:I:NSTtEaRtNuAsLR_eCpO*M MaAb)s;l
_      n| o                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~n
nul/usr/local/clang/include/absl/container/internal/btree_container.hl: 511P:r47e:p anote: rexpanded from macro 'ABSL_INTERNAL_X'e
ToMo  d511i | f y ( 
        |                                       ^ 
   /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#AdTeTfRiInBeU TaEb_sClA_PnToUnRnEuDl_lB Y_(Ntohninsu)l)l)
        |                       ^ 
                    \
      |                                               ^~~~
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string*/usr/local/clang/include/absl/container/internal/btree_container.h :a577b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null   577M | o v eAdBFSrLo_mISNtTrEiRnNgA(L)_;X
(      i| n                            ^s
er/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  ,241  | i#ndseefritn_eo ra_bassls_ingonn_nhuilnlt __iNmopnln,u l&l&
,       | c                     ^o
nst &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),        In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   sIn file included from ts2/s2shapeutil_contains_brute_force.cca:t18i:
cIn file included from  ../src/s2/s2shapeutil_contains_brute_force.hc:o21n:
sIn file included from t../src/s2/s2point.h :s27t:
aIn file included from t../src/s2/s2coder.hu:s23_:
iIn file included from n/usr/local/clang/include/absl/status/status.ht:e67r:
nIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl::29::
SIn file included from t/usr/local/clang/include/absl/strings/cord.ha:t86u:
sR/usr/local/clang/include/absl/strings/cord_analysis.he:p32*: 47a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn   u32l | ls iRzeep_Tto PGoeitnEtsetri(m
a      t| e                                           ^d
Me/usr/local/clang/include/absl/base/nullability.hm:o241r:y22U:s anote: gexpanded from macro 'absl_nonnull'e
(c  o241n | s#td eCfoirndeR eapb*s la_bnsoln_nnuolnln u_lNlo nrneupl)l;

            | |                      ^                                              ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ne abIn file included from ss2/util/coding/coder.ccl:_19n:
oIn file included from n../src/s2/util/coding/coder.hn:u36l:
lIn file included from  ../src/s2/base/casts.h_:N34o:
nIn file included from n/usr/local/clang/include/absl/log/log.hu:l209l:

In file included from       /usr/local/clang/include/absl/log/internal/log_impl.h| :                     ^22
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnIn file included from us2/s2shapeutil_contains_brute_force.ccl:l18 :
fIn file included from i../src/s2/s2shapeutil_contains_brute_force.hl:e21_:
nIn file included from a../src/s2/s2point.hm:e27_:
 In file included from =../src/s2/s2coder.h :"23":
;In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67              ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/base/nullability.h::29241:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:: 86note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/cord_analysis.h:  50241: | 49#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a   b50s | ls_inzoen_ntu lGle t_MNoornenPurlelc
i      s| e                     ^M
emoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
                \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) _In file included from _s2/util/coding/coder.ccV:A19_:
AIn file included from R../src/s2/util/coding/coder.hG:S36_:
_In file included from 
../src/s2/base/casts.h      :| 34        ^:

In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:  24119:
 | In file included from  /usr/local/clang/include/absl/container/btree_map.h :L67o:
g/usr/local/clang/include/absl/container/internal/btree_container.hM:e577s:s3a:g ewarning: &passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
ToSi  n577k | A l sAoB(SaLb_sIlN:T:ELRoNgASLi_nXk(*i nasbesrlt__noorn_nauslsli gsni,n ki)n;s
e      r| t                                        ^_
or/usr/local/clang/include/absl/base/nullability.h_:a241s:s22i:g nnote: _expanded from macro 'absl_nonnull'h
in  t241_ | i#mdpelf,i n&e& ,a bcsoln_snto n&n,u
l      l|    ^_
No/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l52l:
       note: | expanded from macro 'ABSL_INTERNAL_X'                     ^

  511 |           ABSL_INTERIn file included from Ns2/util/coding/coder.ccA:L19_:
AIn file included from T../src/s2/util/coding/coder.hT:R36I:
BIn file included from U../src/s2/base/casts.hT:E34_:
CIn file included from A/usr/local/clang/include/absl/log/log.hP:T209U:
RIn file included from E/usr/local/clang/include/absl/log/internal/log_impl.hD:_22B:
Y/usr/local/clang/include/absl/log/internal/log_message.h(:t121h:i41s:) )warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      121  |      L o g M e s s a g e &   T o S i\n
k      O| n                                                   ^l
y(/usr/local/clang/include/absl/container/internal/common.ha:b32s:l9::: Lnote: omacro 'ABSL_INTERNAL_IF_false' defined hereg
Sin   k32* |  #adbesfli_nneo nAnBuSlLl_ IsNiTnEkR)N;A
L      _| I                                        ^F
_f/usr/local/clang/include/absl/base/nullability.ha:l241s:e22(:i fnote: _expanded from macro 'absl_nonnull's
at  i241s | f#ideedf,i n.e. .a)b s_l__VnAo_nAnRuGlSl_ __
N      o| n        ^n
ull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23:In file included from  s2/s2shapeutil_build_polygon_boundaries.ccnote: :expanded from macro 'absl_nullable'24
:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :25767 | :
#/usr/local/clang/include/absl/container/internal/btree_container.hd:e579f:i3n:e  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
sl_n  u579l | l a bAlBeS L__NIuNlTlEaRbNlAeL
_      X| (                      ^i
nsert_or_assign, insert_or_In file included from as2/util/coding/coder.ccs:s19i:
gIn file included from n../src/s2/util/coding/coder.h_:h36i:
nIn file included from t../src/s2/base/casts.h_:i34m:
pIn file included from l/usr/local/clang/include/absl/log/log.h,: 209&:
&In file included from ,/usr/local/clang/include/absl/log/internal/log_impl.h :c22o:
n/usr/local/clang/include/absl/log/internal/log_message.hs:t161 :&38,:
       warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  ^

/usr/local/clang/include/absl/container/internal/btree_container.h  :161509 | : 52 :L onote: gexpanded from macro 'ABSL_INTERNAL_X'M
ess  a509g | e &   o p e r a t o rA<B<S(Lc_oInNsTtE RvNoAiLd_*A TaTbRsIlB_UnTuEl_lCaAbPlTeU R EvD)_ B{Y
(      t| h                                     ^i
s)/usr/local/clang/include/absl/base/nullability.h):,257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _\n
u      l| l                                                   ^a
bl/usr/local/clang/include/absl/container/internal/common.he: 32_:N9u:l lnote: amacro 'ABSL_INTERNAL_IF_false' defined hereb
le
         32|  |                       ^#
define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assIn file included from is2/util/coding/coder.ccg:n19,:
 In file included from i../src/s2/util/coding/coder.hn:s36e:
rIn file included from t../src/s2/base/casts.h_:o34r:
_In file included from a/usr/local/clang/include/absl/log/log.hs:s209i:
gIn file included from n/usr/local/clang/include/absl/log/internal/log_impl.h_:h22i:
n/usr/local/clang/include/absl/log/internal/log_message.ht:_179i:m35p:l ,warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]&
&,   c179o | n s tL o&g,M
e      s| s  ^a
ge/usr/local/clang/include/absl/container/internal/btree_container.h&: 511o:p52e:r anote: texpanded from macro 'ABSL_INTERNAL_X'o
r<<  (511w | c h a r _ t *   a b sAlB_SnLu_lIlNaTbElReN AvL)_;A
T      T| R                                  ^I
BU/usr/local/clang/include/absl/base/nullability.hT:E257_:C23A:P Tnote: Uexpanded from macro 'absl_nullable'R
ED  _257B | Y#(dtehfiisn)e) )a b s l _ n u l l a b l e   _ N u l l a b l e 
       \| 
                      ^      
|                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) iIn file included from fs2/util/coding/coder.cc_:s19a:
tIn file included from i../src/s2/util/coding/coder.hs:f36i:
eIn file included from d../src/s2/base/casts.h
:      34| :
        ^In file included from 
/usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190In file included from  | s2/s2shapeutil_build_polygon_boundaries.cc : 24L:
oIn file included from g/usr/local/clang/include/absl/container/btree_map.hM:e67s:
s/usr/local/clang/include/absl/container/internal/btree_container.ha:g579e& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from In file included from s2/s2shapeutil_coding.ccs2/util/coding/coder.cc::2819:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/util/coding/coder.h::3636:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/base/casts.h::3434:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/log.h::30209:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/log/internal/log_impl.h::6622:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/container/internal/btree.h::30670::
3In file included from :/usr/local/clang/include/absl/container/internal/layout.h :warning: 198type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/str_cat.h:431:  15306: |   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_  n431o | n n ucloln sstt dc:h:aurn*i qaubes_lp_tnru<lLloagbMlees sdaagteaD(a)t ac>o ndsatt a{_ ;r
e      t| u  ^r
n p/usr/local/clang/include/absl/base/nullability.hi:e241c:e22_:. dnote: aexpanded from macro 'absl_nonnull't
a(  )241; |  #}d
e      f| i              ^n
e a/usr/local/clang/include/absl/base/nullability.hb:s257l:_23n:o nnote: nexpanded from macro 'absl_nullable'u
ll   257_ | N#odnenfuilnle
       a| b                     ^s
l_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from   s2/util/coding/coder.cc581: | 19 :
 In file included from A../src/s2/util/coding/coder.hB:S36L:
_In file included from I../src/s2/base/casts.hN:T34E:
RIn file included from N/usr/local/clang/include/absl/log/log.hA:L209_:
XIn file included from (/usr/local/clang/include/absl/log/internal/log_impl.hi:n22s:
e/usr/local/clang/include/absl/log/internal/log_message.hr:t321_:o52r:_ awarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
ign,   321i | nisnelritn_eo rL_oagsMseisgsna_ghei&n tL_oigmMpels,s a&g&e,: :coopnesrta t&o,r
<      <| (  ^w
ch/usr/local/clang/include/absl/container/internal/btree_container.ha:r509_:t52*:  anote: bexpanded from macro 'ABSL_INTERNAL_X's
l_n  u509l | l a b l e   v )   { 
A      B| S                                                   ^L
_I/usr/local/clang/include/absl/base/nullability.hN:T257E:R23N:A Lnote: _expanded from macro 'absl_nullable'A
TT  R257I | B#UdTeEf_iCnAeP TaUbRsElD__nBuYl(ltahbilse) )_,N u l l a b l e 
        |                        ^ 
            \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_In file included from os2/util/coding/coder.ccr:_19a:
sIn file included from s../src/s2/util/coding/coder.hi:g36n:
_In file included from h../src/s2/base/casts.hi:n34t:
_In file included from i/usr/local/clang/include/absl/log/log.hm:p209l:
,In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h&:&22,:
 /usr/local/clang/include/absl/log/internal/log_message.hc:o340n:s46t:  &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  340 |    582  | f r i e n d   v o i d   A b s l F o rtmrauteF,l ufsahl(sSet,r icnognisfty_Siitnekr*a taobrs(lh_innotn)n uAlBlS Ls_iInNkT,E
R      N| A                                             ^L
_CO/usr/local/clang/include/absl/base/nullability.hM:M241A:)22;:
       note: | expanded from macro 'absl_nonnull'                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d509e:f47i:n enote:  expanded from macro 'ABSL_INTERNAL_X'a
bsl_  n509o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnullIn file included from  s2/util/coding/coder.ccS:t19a:
tIn file included from u../src/s2/util/coding/coder.hs::36::
RIn file included from e../src/s2/base/casts.hp:T34o:
PIn file included from o/usr/local/clang/include/absl/log/log.hi:n209t:
eIn file included from r/usr/local/clang/include/absl/log/internal/log_impl.h(:
22      :
| /usr/local/clang/include/absl/log/internal/log_message.h                                         ^:
425:31: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22: note:   expanded from macro 'absl_nonnull'425
 |     241L | o#gdMeefsisnaeg eaFbastla_ln(ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^o
nnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2shapeutil_visit_crossing_edge_pairs.ccu:l18l:
 In file included from _../src/s2/s2shapeutil_visit_crossing_edge_pairs.hN:o23n:
nIn file included from u../src/s2/s2crossing_edge_query.hl:l31
:
      In file included from | ../src/s2/s2padded_cell.h                     ^:
23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |   In file included from  s2/util/coding/coder.cc :s19t:
aIn file included from t../src/s2/util/coding/coder.hu:s36_:
iIn file included from n../src/s2/base/casts.ht:e34r:
nIn file included from a/usr/local/clang/include/absl/log/log.hl::209::
SIn file included from t/usr/local/clang/include/absl/log/internal/log_impl.ha:t22u:
s/usr/local/clang/include/absl/log/internal/log_message.hR:e426p:*31:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_no  n426n | u l lL orgeMpe)s s{a
g      e| F                                ^a
tal/usr/local/clang/include/absl/base/nullability.h(:c241o:n22s:t  note: cexpanded from macro 'absl_nonnull'h
ar  *241  | a#bdself_innoen naublsll _fniolnen,u liln t_ Nloinnneu,l
l      
|                                     ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:18:
In file included from ../src/s2/s2shapeutil_visit_crossing_edge_pairs.h:23:
In file included from ../src/s2/s2crossing_edge_query.h:31:
In file included from ../src/s2/s2padded_cell.h:23:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonIn file included from ns2/util/coding/coder.ccu:l19l:
 In file included from S../src/s2/util/coding/coder.ht:a36t:
uIn file included from s../src/s2/base/casts.hM:e34s:
sIn file included from a/usr/local/clang/include/absl/log/log.hg:e209A:
sIn file included from C/usr/local/clang/include/absl/log/internal/log_impl.hS:t22r:
(/usr/local/clang/include/absl/log/internal/log_message.h
:      436| :            ^36
: warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
241:22:   436 | note:  expanded from macro 'absl_nonnull' 
Lo  g241M | e#sdseafgienDee baubgsFla_tnaoln(ncuolnls t_ Ncohnanru*l la
b      s| l                     ^_
nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERIn file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
NAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:29:
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:227:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  227 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(str_format_internal::ValidFormatImpl<C...>(format),
      |           ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_if(str_format_internal: :EAnBsSuLr_eICNoTnEsRtNeAxLp_rI(Fs_)t,r u"ec(oinfs_tseaxtpirs ftireadp," ).,.
.      )|            ^i
f_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3/usr/local/clang/include/absl/strings/internal/str_format/bind.h:: 149:warning: 22:'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
warning: 'enable_if' is a clang extension [-Wgcc-compat]  
592 |     A149B | S L _ I N T E_R_NaAtLt_rXi(biuntsee_r_t(_(oern_aabslsei_ginf,( sitnrs_efrotr_moart__aisnstiegrnn_ahli:n:tE_nismuprle,C o&n&s,t e&x&p,r (tsr)u,e
,      
|                            ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_ite/usr/local/clang/include/absl/strings/internal/str_format/bind.hr:a158t:o22r:( hwarning: i'enable_if' is a clang extension [-Wgcc-compat]n
t) A  B158S | L _ I N T E R_N_AaLt_tCrOiMbMuAt)e;_
_      (| (                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
nabl/usr/local/clang/include/absl/container/internal/btree_container.he:_511i:f47(:V anote: lexpanded from macro 'ABSL_INTERNAL_X'i
dFor  m511a | t I m p l < A r g s .A.B.S>L(_sI)N,T E"RbNaAdL _fAoTrTmRaItB UtTrEa_pC"A)P)T)U
R      E| D                     ^_
BY(this)))                        \
/usr/local/clang/include/absl/strings/internal/str_format/bind.h      :| 162                                              ^~~~:
22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTEIn file included from Rs2/util/coding/coder.ccN:A19L:
_In file included from X../src/s2/util/coding/coder.h(:t36r:
yIn file included from _../src/s2/base/casts.he:m36p:
lIn file included from a../src/s2/base/logging.hc:e21,:
 In file included from t/usr/local/clang/include/absl/log/check.hr:y37_:
eIn file included from m/usr/local/clang/include/absl/log/internal/check_impl.hp:l21a:
ce/usr/local/clang/include/absl/log/internal/check_op.h_:i180m:p42l:,  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst &,   180f | aAlBsSeL)_;A
T      T| R                                                               ^I
BUT/usr/local/clang/include/absl/container/internal/btree_container.hE:_596P:U9R:E _note: Fmacro 'ABSL_INTERNAL_X' defined hereU
NCT  I596O | N# dceofnisnte  cAhBaSrL*_ IaNbTsElR_NnAoLn_nXu(lFlu nMca,k eCCahlelcekeF,a iKlQSutarli,n gK(V
a      l| u                                         ^e
, ../usr/local/clang/include/absl/base/nullability.h.:)241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s\l
_      n| o        ^n
null _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonn/usr/local/clang/include/absl/container/internal/btree_container.hu:l618l: 3p:r ewarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
x);  
618       | |                          ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241X | (#tdreyf_ienmep laabcsel,_ ntornyn_uelmlp l_aNcoen_niumlpll
,       | c                     ^o
nst &, falseIn file included from )s2/util/coding/coder.cc;:
19      :
| In file included from   ^../src/s2/util/coding/coder.h
:36:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :../src/s2/base/casts.h611::3652:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'ABSL_INTERNAL_X':

In file included from /usr/local/clang/include/absl/log/check.h  :61137 | :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 181 : 58A:B Swarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
INTE  R181N | A L _ A TcToRnIsBtU TaEb_sClA:P:TSUtRaEtDu_sB*Y (atbhsils_)n)o,n n u l l   s t a t u s ,   c o n s t   c h a r *   a\b
s      l| _                                                   ^n
onn/usr/local/clang/include/absl/container/internal/common.hu:l32l: 9p:r enote: fmacro 'ABSL_INTERNAL_IF_false' defined herei
x);   
32       | | #                                                         ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iInFe_ faablssle_(niofn_nsualtli s_fNioendn,u l.l.
.      )|                       ^_
_VA_ARGS__
      |         ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absIn file included from ls2/s2shapeutil_build_polygon_boundaries.cc:::24S:
tIn file included from a/usr/local/clang/include/absl/container/btree_map.ht:u67s:
*/usr/local/clang/include/absl/container/internal/btree_container.h :a619b:s63l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null   619A | s S tAaBtSuLs_(IcNoTnEsRtN AaLb_sXl(:t:rSyt_aetmupsl&a cse),  {t
r      y| _                           ^e
mp/usr/local/clang/include/absl/base/nullability.hl:a241c:e22_:i mnote: pexpanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from  s2/util/math/exactfloat/exactfloat.cc_:N18o:
nIn file included from n../src/s2/util/math/exactfloat/exactfloat.hu:l126l:

In file included from       ../src/s2/base/logging.h| :                     ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.hIn file included from :s2/util/coding/coder.cc27::
19In file included from :
/usr/local/clang/include/absl/log/internal/proto.hIn file included from :../src/s2/util/coding/coder.h34::
36:
/usr/local/clang/include/absl/types/span.hIn file included from :../src/s2/base/casts.h212::3622:
:In file included from  ../src/s2/base/logging.h:warning: 21:
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h  :21221 | :
 /usr/local/clang/include/absl/log/internal/check_op.h :u293s:i49n:g  warning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
int  e293r |   =   T *   a b s l _ n u l l a b i l i t y _ u n k n o w n ; 
        |                       ^ 
 co/usr/local/clang/include/absl/base/nullability.hn:s289t: 34c:h anote: rexpanded from macro 'absl_nullability_unknown'*
 ab  s289l | _#ndoenfniunlel )a;b
s      l| _                                                ^n
ul/usr/local/clang/include/absl/base/nullability.hl:a241b:i22l:i tnote: yexpanded from macro 'absl_nonnull'_
un  k241n | o#wdne f_iNnuel la_busnls_pneocninfuileld 
_      N| o                                 ^n
null
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:In file included from 41s2/util/coding/coder.cc:
:In file included from 19/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26../src/s2/util/coding/coder.h:
:In file included from 36/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 47../src/s2/base/casts.h:
:In file included from 36/usr/local/clang/include/absl/log/internal/structured_proto.h:
:In file included from 27../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/proto.h:
:In file included from 34/usr/local/clang/include/absl/log/check.h:
:/usr/local/clang/include/absl/types/span.h37::
213In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h34::21 :
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]:
295:20:   213 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
usin  g295  | ccoonnsstt_ psoiignnteedr  c=h acro*n satb sTl*_ naobnsnlu_lnlu lolpaebrialtiotry<_<u(nsktndo:w:nb;a
s      i| c                                 ^_
os/usr/local/clang/include/absl/base/nullability.ht:r289e:a34m:< cnote: hexpanded from macro 'absl_nullability_unknown'a
r,   289T | r#adietfsi>n&e, 
a      b| s                   ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:i lnote: iexpanded from macro 'absl_nonnull't
y_  u241n | k#ndoewfni n_eN ualbls_lu_nnsopnencuilfli e_dN
o      n| n                                 ^u
ll
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
l, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
In file included from   s2/s2text_format.cc596: | 16#:
dIn file included from e../src/s2/s2text_format.hf:i34n:
eIn file included from  ../src/s2/mutable_s2shape_index.hA:B30S:
LIn file included from _/usr/local/clang/include/absl/container/btree_map.hI:N66T:
EIn file included from R/usr/local/clang/include/absl/container/internal/btree.hN:A73L:
_In file included from X/usr/local/clang/include/absl/strings/cord.h(:F82u:
nIn file included from c/usr/local/clang/include/absl/crc/internal/crc_cord_state.h,: 23C:
aIn file included from l/usr/local/clang/include/absl/crc/crc32c.hl:e32e:
,/usr/local/clang/include/absl/strings/str_format.h :K115Q:u52a:l ,warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]K
Valu  e115, |   . . . )    c o n s t   s t r _ f o r m a t _ i n t e\r
n      a| l        ^:
:ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNALIn file included from _s2/s2text_format.ccA:T16T:
RIn file included from I../src/s2/s2text_format.hB:U34T:
EIn file included from _../src/s2/mutable_s2shape_index.hC:A30P:
TIn file included from U/usr/local/clang/include/absl/container/btree_map.hR:E66D:
_In file included from B/usr/local/clang/include/absl/container/internal/btree.hY:(73t:
hIn file included from i/usr/local/clang/include/absl/strings/cord.hs:)82):
,In file included from  /usr/local/clang/include/absl/crc/internal/crc_cord_state.h : 23 :
 In file included from  /usr/local/clang/include/absl/crc/crc32c.h : 32 :
 /usr/local/clang/include/absl/strings/str_format.h : 155 : 36 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       155  |   \ 
e      x| p                                                   ^l
ici/usr/local/clang/include/absl/container/internal/common.ht: 31F:o9r:In file included from m s2/util/coding/coder.ccanote: :tmacro 'ABSL_INTERNAL_IF_true' defined here19C
o:
u   In file included from n31../src/s2/util/coding/coder.ht | C:#a36dpe:
tfuIn file included from ir../src/s2/base/casts.hnee:( i36An:
BtIn file included from S*L../src/s2/base/logging.h _:aIb21NsT:
lE_In file included from RnN/usr/local/clang/include/absl/log/check.hoA:nL37n_u:
IlIn file included from Fl_/usr/local/clang/include/absl/log/internal/check_impl.h t:pr)21u e:
:(/usr/local/clang/include/absl/log/internal/check_op.h ip:f__428(sp:a)t44 i{:s}f 
iwarning:       etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| d                                   ^
,
 ..  /usr/local/clang/include/absl/base/nullability.h.428:) | 241A :iB22fS:_L s_note: aexpanded from macro 'absl_nonnull'At
iTsT  fR241iI | e#Bdd
Ue      Tf| Ei        ^n_
eR EaTbUsRlN_Sn_oNnOnNuIn file included from Nls2/s2shapeutil_build_polygon_boundaries.ccUl: L24_L:
N In file included from oc/usr/local/clang/include/absl/container/btree_map.hno:nn67us:
lt/usr/local/clang/include/absl/container/internal/btree_container.hl :c
619h      :a| 3                     ^r:
*  warning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
sl_no  n619n | u l lA BMSaLk_eIn file included from ICs2/s2text_format.ccNh:eT16Ec:
RkIn file included from NOA../src/s2/s2text_format.hIn file included from pL:_s2/s2winding_operation.ccS34X:(t:
19trIn file included from :
ri../src/s2/mutable_s2shape_index.hIn file included from yn:../src/s2/s2winding_operation.h_g30:e(:

23mIn file included from p      :
/usr/local/clang/include/absl/container/btree_map.hl| In file included from :a                                           ^../src/s2/s2builder.h66c
::
e31In file included from /usr/local/clang/include/absl/base/nullability.h,:
 /usr/local/clang/include/absl/container/internal/btree.h:In file included from t:241/usr/local/clang/include/absl/container/flat_hash_set.hr73y:::
_2243In file included from e::
/usr/local/clang/include/absl/strings/cord.hm In file included from :pnote: /usr/local/clang/include/absl/container/hash_container_defaults.h82lexpanded from macro 'absl_nonnull'::
a
19In file included from c:
e/usr/local/clang/include/absl/crc/internal/crc_cord_state.h_  In file included from :i241/usr/local/clang/include/absl/container/internal/hash_function_defaults.h23m | :#:
p59ldIn file included from :
,e/usr/local/clang/include/absl/crc/crc32c.hIn file included from  f:/usr/local/clang/include/absl/strings/cord.hci32:on:
82ne:
/usr/local/clang/include/absl/strings/str_format.hs In file included from :ta/usr/local/clang/include/absl/crc/internal/crc_cord_state.h164 b::&s238,l:
: _In file included from n t/usr/local/clang/include/absl/crc/crc32c.howarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:nu
e32)n:
  ;uIn file included from 164
l/usr/local/clang/include/absl/strings/str_format.h |       l:  |  84i_  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
nN
oIn file included from tn/usr/local/clang/include/absl/strings/internal/str_format/bind.h/usr/local/clang/include/absl/container/internal/btree_container.h*n:: u24611al:
:blIn file included from 47s
/usr/local/clang/include/absl/container/inlined_vector.h:l      : _| 56note: nexpanded from macro 'ABSL_INTERNAL_X'                     ^:
o

In file included from n/usr/local/clang/include/absl/container/internal/inlined_vector.hn:u  35l611l:
 |   /usr/local/clang/include/absl/types/span.hUIn file included from  :ns2/util/coding/coder.cc 212u: :s19 22 e :
:d In file included from  ( ../src/s2/util/coding/coder.hwarning: )  :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]A{B36
 S:
rLIn file included from   e_../src/s2/base/casts.h212tIu: | NrT36 n  Ep:
uR_NIn file included from s;i A}../src/s2/base/logging.hnLg_ Ap
o:T      TiRn21| I       ^t:
B
UeTIn file included from r/usr/local/clang/include/absl/base/nullability.hE/usr/local/clang/include/absl/log/check.h :_:=241 CTA37:*P :
22TaUIn file included from :bRs/usr/local/clang/include/absl/log/internal/check_impl.h ElD:note: _expanded from macro 'absl_nonnull'n_u21
BlY:
  l(a/usr/local/clang/include/absl/log/internal/check_op.h241tbh: | i#id429lse:i)f)31tiy,_:n u  en kwarning:   n type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aob s
w nl ;  _ n 
 429o      n  | |  n In file included from                      ^ u s2/util/math/exactfloat/exactfloat.cc
 l l: /usr/local/clang/include/absl/base/nullability.h   18T:_ N:
1289 o In file included from  :n n../src/s2/util/math/exactfloat/exactfloat.hv34 u :1:l 126 , l:

  note: In file included from       \Texpanded from macro 'absl_nullability_unknown'../src/s2/base/logging.h| 
2
:                     ^
       21v  | :
2289                                              ^~~~In file included from , | 
#/usr/local/clang/include/absl/log/check.h In file included from d:cs2/s2text_format.cce37o:f:
n16iIn file included from s:
n/usr/local/clang/include/absl/log/internal/check_impl.htIn file included from e:  ../src/s2/s2text_format.h21ac::
bh34In file included from sa:
/usr/local/clang/include/absl/log/internal/check_op.hlrIn file included from :_*n../src/s2/mutable_s2shape_index.hu41 :al:
30blIn file included from :
sa/usr/local/clang/include/absl/log/internal/strip.hIn file included from lb:/usr/local/clang/include/absl/container/btree_map.h_i26:nl:
66oiIn file included from :
nt/usr/local/clang/include/absl/log/internal/log_message.hIn file included from ny:/usr/local/clang/include/absl/container/internal/btree.hu_47:lu:
73lnIn file included from :
 /usr/local/clang/include/absl/container/internal/btree_container.hk/usr/local/clang/include/absl/log/internal/structured_proto.hIn file included from e:n:/usr/local/clang/include/absl/strings/cord.hx620o27:p:w:
82r59nIn file included from :
t: /usr/local/clang/include/absl/log/internal/proto.hIn file included from e _:/usr/local/clang/include/absl/crc/internal/crc_cord_state.hxwarning: N34:tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u:
23)
l/usr/local/clang/include/absl/types/span.h:
 l:In file included from   A_733/usr/local/clang/include/absl/crc/crc32c.h620Bu:: | Sn3132 Ls::
 _AAp /usr/local/clang/include/absl/strings/str_format.hBTewarning: :STctype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]165LRi
:_If8IB  i:eNdU733 T
T | Ewarning: E      c_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R| oN
N                                 ^nOsA
L  ItN_165XeL | (xI tpNIn file included from  rrEs2/s2winding_operation.cciyn ;S:_te
p19*m       a:
pal| n                              ^In file included from bas<
../src/s2/s2winding_operation.hcl/usr/local/clang/include/absl/base/nullability.hT:e_,:>23no try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,241:22: note:  expanded from macro 'absl_nonnull'
Ma  k241e | S#pdaenf(iTn*e  aabbssll__nnuolnlnaubllle  _pNtorn nAuBlSlL
_      A| T                     ^T
RIBUTE_LIFETIME_BOUND,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nuIn file included from ls2/util/coding/coder.ccl:a19b:
lIn file included from e../src/s2/util/coding/coder.h :_36N:
uIn file included from l../src/s2/base/casts.hl:a36b:
lIn file included from e../src/s2/base/logging.h
:      21| :
                      ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1In file included from ,s2/util/math/exactfloat/exactfloat.cc :T182:
 In file included from v../src/s2/util/math/exactfloat/exactfloat.h2:,126
:
      In file included from | ../src/s2/base/logging.h            ^:
21:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/base/nullability.h::37241:
:In file included from 22/usr/local/clang/include/absl/log/internal/check_impl.h:: 21note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h:  41241:
 | In file included from #/usr/local/clang/include/absl/log/internal/strip.hd:e26f:
iIn file included from n/usr/local/clang/include/absl/log/internal/log_message.he: 47a:
bIn file included from s/usr/local/clang/include/absl/log/internal/structured_proto.hl:_27n:
oIn file included from n/usr/local/clang/include/absl/log/internal/proto.hn:u34l:
l/usr/local/clang/include/absl/types/span.h :_739N:o21n:n uwarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l

      |                      ^  
739 | Span<T> MaIn file included from ks2/util/coding/coder.cce:S19p:
aIn file included from n../src/s2/util/coding/coder.h(:T36*:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.hu:l21l:
aIn file included from b/usr/local/clang/include/absl/log/check.hl:e37 :
bIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hg:i21n:
 /usr/local/clang/include/absl/log/internal/check_op.hA:B433S:L56_:A Twarning: Ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
IBU  T433E | _ L I F E T I M E _ B O U N D , 
        |                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23:   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   acbosnls_tn uclhlaarb*l ea b_sNlu_lnloanbnluel
l       | e                      ^x
prtext) {
      | In file included from                                                        ^s2/util/math/exactfloat/exactfloat.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/util/math/exactfloat/exactfloat.h241::12622:
:In file included from  ../src/s2/base/logging.h:note: 21expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/log/check.h:  37241:
 | In file included from #/usr/local/clang/include/absl/log/internal/check_impl.hd:e21f:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_op.he: 41:
aIn file included from b/usr/local/clang/include/absl/log/internal/strip.h:s26l:
_In file included from n/usr/local/clang/include/absl/log/internal/log_message.ho:n47n:
uIn file included from l/usr/local/clang/include/absl/log/internal/structured_proto.hl: 27_:
In file included from N/usr/local/clang/include/absl/log/internal/proto.ho:n34n:
u/usr/local/clang/include/absl/types/span.hl:l740
:      21| :                     ^ 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpIn file included from Ss2/util/math/exactfloat/exactfloat.cct:r18i:
nIn file included from g../src/s2/util/math/exactfloat/exactfloat.h(: 126 :
 In file included from \../src/s2/base/logging.h
:      21| :
In file included from                               ^/usr/local/clang/include/absl/log/check.h
:37:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h241::2122:
:In file included from  /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'41
:
In file included from   /usr/local/clang/include/absl/log/internal/strip.h241: | 26#:
dIn file included from e/usr/local/clang/include/absl/log/internal/log_message.hf:i47n:
eIn file included from  /usr/local/clang/include/absl/log/internal/structured_proto.ha:b27s:
In file included from l/usr/local/clang/include/absl/log/internal/proto.h_:n34o:
n/usr/local/clang/include/absl/types/span.hn:u794:l8l:  _warning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]o
nnul  l794
 |        |                       ^ 
 T* abIn file included from ss2/util/coding/coder.ccl:_19n:
uIn file included from l../src/s2/util/coding/coder.hl:a36b:
lIn file included from e../src/s2/base/casts.h :p36t:
rIn file included from  ../src/s2/base/logging.hA:B21S:
LIn file included from _/usr/local/clang/include/absl/log/check.hA:T37T:
RIn file included from I/usr/local/clang/include/absl/log/internal/check_impl.hB:U21T:
E/usr/local/clang/include/absl/log/internal/check_op.h_:L451I:F1E:T Iwarning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
_B/usr/local/clang/include/absl/log/internal/check_op.hO:U450N:D25,:  snote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'z
e_  t450  | s i z e )   nxo,e xxc,e pcto n{s
t       | c       ^h
ar/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'o
nn  u257l | l#)d
e      f| i                        ^n
e /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n unote: lexpanded from macro 'absl_nonnull'l
ab  l241e |  #_dNeuflilnaeb laeb
s      l| _                      ^n
onnull _Nonnull
      |                      ^
In file included from In file included from s2/util/coding/coder.ccs2/util/math/exactfloat/exactfloat.cc::1918:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/util/math/exactfloat/exactfloat.h::36126:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/base/logging.h::3621:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_impl.h::3721:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_op.h::2141:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/strip.h::45226::
1In file included from :/usr/local/clang/include/absl/log/internal/log_message.h :47warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/structured_proto.h:27:
  In file included from 452/usr/local/clang/include/absl/log/internal/proto.h | :A34:
B/usr/local/clang/include/absl/types/span.hS:L799_:L32O:G _warning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
TE:
RNALIn file included from _../src/s2/s2builder.hD:E31F:
IIn file included from N/usr/local/clang/include/absl/container/flat_hash_set.hE:43_:
MIn file included from A/usr/local/clang/include/absl/container/hash_container_defaults.hK:E19_:
CIn file included from H/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:C59K:
_In file included from O/usr/local/clang/include/absl/strings/cord.hP:_82S:
TIn file included from R/usr/local/clang/include/absl/crc/internal/crc_cord_state.hI:N23G:
_In file included from E/usr/local/clang/include/absl/crc/crc32c.hX:T32E:
RIn file included from N/usr/local/clang/include/absl/strings/str_format.h(:i84n:
tIn file included from 6/usr/local/clang/include/absl/strings/internal/str_format/bind.h4:24_:
tIn file included from )/usr/local/clang/include/absl/container/inlined_vector.h;:
56      :
| In file included from ^/usr/local/clang/include/absl/container/internal/inlined_vector.h
:35:
/usr/local/clang/include/absl/log/internal/check_op.h:/usr/local/clang/include/absl/types/span.h449::21331::34 : note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]

  449 |    213  | e x tuesrinn gt ecmopnlsatt_ep ocionntsetr  c=h acro*n satb sTl*_ naobnsnlu_lnlu lMlaakbeiClhietcyk_OupnSktnroiwnng;(
        |                                   ^\

      |                               ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::289241::3422::  note: note: expanded from macro 'absl_nullability_unknown'expanded from macro 'absl_nonnull'

    241289 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbli l_iNtoyn_nuunlkln
o      w| n                     ^ 
_Null_unspeIn file included from cs2/util/coding/coder.cci:f19i:
eIn file included from d../src/s2/util/coding/coder.h
:      36| :
                                 ^In file included from 
../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: nnote: expanded from macro 'absl_nonnull'
  241 | #nduelfli npe_ ;a
b      s| l       ^_
nonnull /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                      ^
  241 | #define absl_nonnull _NoIn file included from ns2/util/coding/coder.ccn:u19l:
lIn file included from 
../src/s2/util/coding/coder.h      :| 36                     ^:

In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:In file included from 19s2/s2text_format.cc:
:In file included from 16../src/s2/util/coding/coder.h:
:In file included from 36../src/s2/s2text_format.h:
:In file included from 34../src/s2/base/casts.h:
:In file included from 36../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/log/internal/check_op.h82::
456In file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h1::23 :
In file included from warning: /usr/local/clang/include/absl/crc/crc32c.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
32:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/str_format.h::450380::2543::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  450 |    380  |  s t d :x:,s txr,i ncgo&n sStt rcAhpapre*n daFbosrlm_anto(nsntudl:l:)s
t      r| i                        ^n
g*/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'In file included from ns2/s2shapeutil_visit_crossing_edge_pairs.cc
n:  u18l:
l241In file included from   | ../src/s2/s2shapeutil_visit_crossing_edge_pairs.hd#:sd23te:
,fIn file included from 
i../src/s2/s2crossing_edge_query.h      n:e| 33                                          ^ :

aIn file included from b../src/s2/s2shape.hs/usr/local/clang/include/absl/base/nullability.hl::_27241n:
o:In file included from n22n../src/s2/s2pointutil.h:u: l27lnote: :
 expanded from macro 'absl_nonnull'_
../src/s2/util/math/matrix3x3.hN:  o276241n: | n5#u:dl elf
warning: i      type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n| e
                      ^a
b  s276l | _ n o n nSu2l_lC H_ENIn file included from CoKs2/util/coding/coder.ccn_:nNu19El:
l(
In file included from d      ../src/s2/util/coding/coder.he| :                     ^t36
,:
 In file included from V../src/s2/base/casts.hT:y36p:
eIn file included from (../src/s2/base/logging.h0:)21):
 In file included from </usr/local/clang/include/absl/log/check.h<: 37":
 In file included from C/usr/local/clang/include/absl/log/internal/check_impl.ha:n21':
t/usr/local/clang/include/absl/log/internal/check_op.h :i457n:v1e:r swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension].
 De  t457e | rAmBiSnLa_nLtO G=_ I0N.T"E;R
N      A| L    ^_
DEFINE_MAK../src/s2/base/logging.hE:_37C:H21E:C Knote: _expanded from macro 'S2_CHECK_NE'O
P_STR   I37N | G#_dEeXfTiEnReN (Su2n_sCiHgEnCeKd_ NcEh aCrH)E;C
K      _| N^E

      | /usr/local/clang/include/absl/log/internal/check_op.h                    ^:
449:31/usr/local/clang/include/absl/log/check.h:: 120:note: 3expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
 note: expanded from macro 'CHECK_NE'  
449 |   ex  t120e | r n  AtIn file included from BeSs2/s2text_format.ccmL:p_16Ll:
OaIn file included from Gt../src/s2/s2text_format.h_e:I 34Nc:
ToIn file included from nE../src/s2/mutable_s2shape_index.hsR:tN30 A:
cLIn file included from h_/usr/local/clang/include/absl/container/btree_map.haC:rH66E*C:
 KIn file included from a_/usr/local/clang/include/absl/container/internal/btree.hNb:Es_73lI:
_MIn file included from nP/usr/local/clang/include/absl/strings/cord.hLo:(n82(n:
vuaIn file included from ll/usr/local/clang/include/absl/crc/internal/crc_cord_state.h1l:) 23M,:
 aIn file included from #k/usr/local/clang/include/absl/crc/crc32c.hve:aCl32h1:
e,/usr/local/clang/include/absl/strings/str_format.hc :(k440Ov:pa24Sl:2t) ,rwarning: i type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n#
vga(l 2   )440 
 | \      i
| n        ^t| 
                               ^F/usr/local/clang/include/absl/log/internal/check_impl.h
P:r/usr/local/clang/include/absl/base/nullability.hi51:n:241t3:F:22( :snote:  texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'note: dexpanded from macro 'absl_nonnull'
:
:   F  51I241 | L |  E #*Ad eBfaibnSseLl __aLbnOsoGln__InnNuoTlnElnR uNoluAtlLp _u_CtN,HoE CcnonKn_usOltlP (F
Co      r| hm                     ^ea
ctkS_pNIn file included from Es2/util/coding/coder.cce,: c!19<=:
A,In file included from r ../src/s2/util/coding/coder.hgv:sa36l.:
1.In file included from ,. ../src/s2/base/casts.h>v:&a36l 1:
fIn file included from _o../src/s2/base/logging.htr:em21ax:
tt,In file included from ,
/usr/local/clang/include/absl/log/check.h       :v| 37a                       ^:
l
2In file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/base/nullability.h :v:21a241:
l:/usr/local/clang/include/absl/log/internal/check_op.h222:_:457t e:note: x1texpanded from macro 'absl_nonnull':)
 
        warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  ^241

 | /usr/local/clang/include/absl/log/internal/check_op.h#:d/usr/local/clang/include/absl/log/internal/check_op.h450e::f6825i::n22 e:note:   expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a
note: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'  s
450l | _    n 68o n n u lxl,  _xN,o ncnounlslt
       c| h                     ^a
r* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnullIn file included from 
s2/s2text_format.cc      :| 16                     ^:

In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :s2/util/coding/coder.cc469::1920:
:In file included from  ../src/s2/util/coding/coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]36
:
In file included from ../src/s2/base/casts.h:  36469:
 | In file included from i../src/s2/base/logging.hn:t21 :
SIn file included from N/usr/local/clang/include/absl/log/check.hP:r37i:
nIn file included from t  799
 | S      p| a  ^n
<const/usr/local/clang/include/absl/container/internal/btree_container.h :T611>: 52M:a knote: eexpanded from macro 'ABSL_INTERNAL_X'C
onstS  p611a | n ( T *   a b s l _ nAuBlSlLa_bIlNeT EbReNgAiLn_
A      T| T                               ^R
IBUTE_/usr/local/clang/include/absl/base/nullability.hC:A257P:T23U:R Enote: Dexpanded from macro 'absl_nullable'_
BY(  t257h | i#sd)e)f,i n e   a b s l _ n u l l a b l e   _ N u l l a b l e\

            | |                       ^                                                   ^

/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_IIn file included from Ns2/util/math/exactfloat/exactfloat.ccT:E18R:
NIn file included from A../src/s2/util/math/exactfloat/exactfloat.hL:_126I:
FIn file included from _../src/s2/base/logging.hf:a21l:
sIn file included from e/usr/local/clang/include/absl/log/check.h(:37i:
fIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hs:a21t:
iIn file included from s/usr/local/clang/include/absl/log/internal/check_op.hf:i41e:
dIn file included from ,/usr/local/clang/include/absl/log/internal/strip.h :.26.:
.In file included from )/usr/local/clang/include/absl/log/internal/log_message.h :_47_:
VIn file included from A/usr/local/clang/include/absl/log/internal/structured_proto.h_:A27R:
GIn file included from S/usr/local/clang/include/absl/log/internal/proto.h_:_34
:
      /usr/local/clang/include/absl/types/span.h| :801        ^:
32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  801 |                             T* absl_nullable end) noexcept {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:24:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   | 459 | ABS L _wLhOiGl_eI N(TcEoRnNsAtL _cDhEaFrI*N Ea_bMsAlK_En_uClHlEaCbKl_eO Pa_bSsTlR_IlNoGg__EiXnTtEeRrNn(aclo_ncshte cakb_solp:_:rsetsruilntg _ v i e w & ) ; 
        | \^

      | /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   e/usr/local/clang/include/absl/base/nullability.hx:t257e:r23n:  tnote: eexpanded from macro 'absl_nullable'm
pla  t257e |  #cdoenfsitn ec haabrs*l _anbuslll_anbolnen u_lNlu lMlaakbelCeh
e      c| k                      ^O
pString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2winding_operation.cc241: | 19#:
dIn file included from e../src/s2/s2winding_operation.hf:i23n:
eIn file included from  ../src/s2/s2builder.ha:b31s:
lIn file included from _/usr/local/clang/include/absl/container/flat_hash_set.hn:o43n:
nIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.hl:l19:
 In file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hN:o59n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l82
:
      In file included from | /usr/local/clang/include/absl/crc/internal/crc_cord_state.h                     ^:
23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
In file included from /usr/local/clang/include/absl/strings/internal/str_format/bind.h:24:
In file included from /usr/local/clang/include/absl/container/inlined_vector.h:56:
In file included from /usr/local/clang/include/absl/container/internal/inlined_vector.h:35:
In file included from In file included from /usr/local/clang/include/absl/types/span.hs2/util/coding/coder.ccs2/s2shapeutil_visit_crossing_edge_pairs.cc:::7331918::
:
31In file included from In file included from :../src/s2/util/coding/coder.h../src/s2/s2shapeutil_visit_crossing_edge_pairs.h ::warning: 3623type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
:

In file included from In file included from ../src/s2/base/casts.h../src/s2/s2crossing_edge_query.h::3633:
  :
In file included from 733In file included from ../src/s2/base/logging.h | ../src/s2/s2shape.h:c:21o27n:
:
sIn file included from In file included from t/usr/local/clang/include/absl/log/check.h../src/s2/s2pointutil.he::x3727p:
:
rIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/util/math/matrix3x3.hS::p21276a:
:n/usr/local/clang/include/absl/log/internal/check_op.h5<::T459>  :warning: M1type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:
k e../src/s2/base/logging.hSwarning: :ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]37a
:n/usr/local/clang/include/absl/log/internal/check_op.h21(:T:*450  note: a:bexpanded from macro 'S2_CHECK_NE'25s
:l _   note: n37uexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | l
#ld  aebf450li | en  e p  tSr 2  _A CBxSHL,E_ CAxKT,_T NRcEIo BnCUsHTtEEC _KLc_IhNaFErE
*T       I| aM                    ^Eb
_sBlO_/usr/local/clang/include/absl/log/check.hUn:No120Dn:,n3
u:      l | l                              ^note: )
expanded from macro 'CHECK_NE'

      | /usr/local/clang/include/absl/base/nullability.h                        ^  :
120257 | /usr/local/clang/include/absl/base/nullability.h: :23 241A::B 22Snote: L:expanded from macro 'absl_nullable'_ 
Lnote: O  expanded from macro 'absl_nonnull'G257
_ | I  #N241Td | EeRf#NidAneeLf _aiCbnHsEleC_K n_auNlbEl_saIblMlPe_ nL_(o(Nnvunalullalbl1l e_)
,N       o| n                      ^#n
vualll1
,       | (                     ^v
al2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   AIn file included from Bs2/util/coding/coder.ccS:L19_:
LIn file included from O../src/s2/util/coding/coder.hG:_36I:
NIn file included from T../src/s2/base/casts.hE:R36N:
In file included from AIn file included from s2/s2winding_operation.ccL../src/s2/base/logging.h_::C1921H:
:
EIn file included from In file included from C../src/s2/s2winding_operation.h/usr/local/clang/include/absl/log/check.hK::_2337O:
:
PIn file included from In file included from (../src/s2/s2builder.h/usr/local/clang/include/absl/log/internal/check_impl.hC::h31e21:
c:
In file included from k/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/flat_hash_set.h_::N46043E::
,1 In file included from :!/usr/local/clang/include/absl/container/hash_container_defaults.h =:warning: ,19 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
v
In file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:  159460,:
  | In file included from vA/usr/local/clang/include/absl/strings/cord.haB:lS821L:
__In file included from tLe/usr/local/clang/include/absl/crc/internal/crc_cord_state.hOx:Gt23_,:
I In file included from Nv/usr/local/clang/include/absl/crc/crc32c.haT:lE322R:
,NIn file included from  A/usr/local/clang/include/absl/strings/str_format.hLv:_84aD:
lEIn file included from 2F/usr/local/clang/include/absl/strings/internal/str_format/bind.h_I:tN24eE:
x_In file included from tM/usr/local/clang/include/absl/container/inlined_vector.h)A
:K      56E| :
_  ^In file included from C
/usr/local/clang/include/absl/container/internal/inlined_vector.hH:/usr/local/clang/include/absl/log/internal/check_op.hE35C::
K75/usr/local/clang/include/absl/types/span.h_::O61739P::_ 21Snote: :Texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' R
warning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
   G75_ |   E 739X  | TSAEpBRaNSn(L<c_TLo>O nMsGa_tkI ecNShTpEaarnR*N( TAaLb_sClH_EnCoKn(n:u:lalb)s;l
:      :| i^m
pl/usr/local/clang/include/absl/log/internal/check_op.hi:c449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aFbsl_n(ocnhnaurl*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
outpIn file included from us2/util/coding/coder.cct:,19 :
sIn file included from t../src/s2/util/coding/coder.hd::36::
sIn file included from i../src/s2/base/casts.hz:e36_:
tIn file included from  ../src/s2/base/logging.hs:i21ze:
,In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37:
                   ^In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:/usr/local/clang/include/absl/base/nullability.h1::241 :22warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nonnull'
  460 | A  B241S | L#_dLeOfGi_nIeN TaEbRsNlA_Ln_oDnEnFuIlNlE __MNAoKnEn_uClHlE
C      K| _                     ^O
P_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2text_format.cc
:      16| :
                     ^In file included from 
../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:503In file included from :s2/util/coding/coder.cc20::19 :
In file included from warning: ../src/s2/util/coding/coder.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/base/casts.h:  36503:
 | In file included from  ../src/s2/base/logging.h :F21o:
rIn file included from m/usr/local/clang/include/absl/log/check.ha:t37R:
aIn file included from w/usr/local/clang/include/absl/log/internal/check_impl.hS:i21n:
k/usr/local/clang/include/absl/log/internal/check_op.h(:T461*: 1a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
non  n461u | lAlB SrLa_wL)O G _/I/N TNEORLNIANLT_
D      E| F                   ^I
NE/usr/local/clang/include/absl/base/nullability.h_:M241A:K22E:_ Cnote: Hexpanded from macro 'absl_nonnull'E
CK  _241O | P#_dSeTfRiInNeG _aEbXsTlE_RnNo(n
n      u| l^l
 _/usr/local/clang/include/absl/log/internal/check_op.hN:o449n:n31u:l lnote: 
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'      
|                      ^
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern templ*a taeb sclo_nnsutl lcahbalre*  baebgsiln_ nAoBnSnLu_lAlT TMRaIkBeUCThEe_cLkIOFpESTtIrMiEn_BgO(U N D ,\

            | |                     ^                              ^

/usr/local/clang/include/absl/base/nullability.h:241:/usr/local/clang/include/absl/base/nullability.h22::257 :23note: :expanded from macro 'absl_nonnull' 
note:   expanded from macro 'absl_nullable'241
 | #d  e257f | i#ndee faibnsel _anbosnln_unlull l_aNbolnen u_lNlu
l      l| a                     ^b
le
      | In file included from                       ^s2/util/coding/coder.cc
:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     In file included from cs2/s2winding_operation.cco:n19s:
tIn file included from  ../src/s2/s2winding_operation.hu:n23s:
iIn file included from g../src/s2/s2builder.hn:e31d:
 In file included from c/usr/local/clang/include/absl/container/flat_hash_set.hh:a43r:
*In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o59n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:82l:
)In file included from ;/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:      23| :
                         ^In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/str_format.h::2284::
 In file included from note: /usr/local/clang/include/absl/strings/internal/str_format/bind.hexpanded from macro 'absl_nonnull':
24:
In file included from   /usr/local/clang/include/absl/container/inlined_vector.h241: | 56#:
dIn file included from e/usr/local/clang/include/absl/container/internal/inlined_vector.hf:i35n:
e/usr/local/clang/include/absl/types/span.h :a740b:s21l:_ nwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
nul  l740  | _ N o n n u l l 
        |                       ^ 
     TIn file included from *s2/util/coding/coder.cc :a19b:
sIn file included from l../src/s2/util/coding/coder.h_:n36u:
lIn file included from l../src/s2/base/casts.ha:b36l:
eIn file included from  ../src/s2/base/logging.he:n21d:
)In file included from  /usr/local/clang/include/absl/log/check.hn:o37e:
xIn file included from c/usr/local/clang/include/absl/log/internal/check_impl.he:p21t:
 /usr/local/clang/include/absl/log/internal/check_op.h{:
464      :| 26                    ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
257:/usr/local/clang/include/absl/base/nullability.h23::i241 note: :expanded from macro 'absl_nullable't22
_:c   a257note: s | expanded from macro 'absl_nonnull't#
<dc  oe241nf | s#itdn eec fahibanserl *_an buaslblsl_lan_bnlooenn nn_uNluull>ll(la   b_l N eo 
n\      n
| u                            ^l| 
l                                                            ^

      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/util/coding/coder.cc22::19 :
In file included from note: In file included from expanded from macro 'absl_nonnull's2/s2shapeutil_build_polygon_boundaries.cc
:24:
In file included from   /usr/local/clang/include/absl/container/btree_map.h241: | 67#:
d/usr/local/clang/include/absl/container/internal/btree_container.he:f628i:n3e:  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_no  n628n | u l lA B_SNLo_nInNuTlElR
N      A| L                     ^_
X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31In file included from :
s2/s2shapeutil_build_polygon_boundaries.ccIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h24::
43In file included from :
/usr/local/clang/include/absl/container/btree_map.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h67::
19/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 628/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::359::
 In file included from /usr/local/clang/include/absl/strings/cord.hwarning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]82
:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from   /usr/local/clang/include/absl/crc/crc32c.h628: | 32 :
 In file included from A/usr/local/clang/include/absl/strings/str_format.hB:S84L:
_In file included from I/usr/local/clang/include/absl/strings/internal/str_format/bind.hN:T24E:
RIn file included from N/usr/local/clang/include/absl/container/inlined_vector.hA:L56_:
XIn file included from (/usr/local/clang/include/absl/container/internal/inlined_vector.ht:r35y:
_/usr/local/clang/include/absl/types/span.he:m794p:l8a:c ewarning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
try_  empl794a | c e _ h iTn*t _aibmspll_,n u&l&l,a btlreu In file included from eps2/s2shapeutil_contains_brute_force.cc,t:
r18       :
| AIn file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~B../src/s2/s2shapeutil_contains_brute_force.h
S:L21  _:
629AIn file included from  | T../src/s2/s2point.h T: R27 I:
 BIn file included from  U../src/s2/s2coder.h T: E23 _:
 LIn file included from  I/usr/local/clang/include/absl/status/status.h F: E67 T:
 IIn file included from  M/usr/local/clang/include/absl/status/internal/status_internal.h E: _29 B:
cOIn file included from oU/usr/local/clang/include/absl/strings/cord.hnN:sD94t,:
_ In file included from is/usr/local/clang/include/absl/strings/internal/cordz_info.hit:ze31er:
a_/usr/local/clang/include/absl/synchronization/mutex.htt:o 489rs:(i14hz:ie n)warning: t type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])n
o eAxBc  eS489Lp | _t I N T E R NvAoLi_dC O(M*MaAb)s;l
_      n| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
lab/usr/local/clang/include/absl/container/internal/btree_container.hl:e611 :i47n:v anote: rexpanded from macro 'ABSL_INTERNAL_X'i
ant)  (611v | o i d *   a b s l _ nAuBlSlLa_bIiNlTiEtRyN_AuLn_kAnToTwRnI)B,U
T      E| _             ^C
APTU/usr/local/clang/include/absl/base/nullability.hR:E257D:_23B:Y (note: texpanded from macro 'absl_nullable'h
is)  )257, |  # d e f i n e   a b s l _ n u l l a b l e   _ N u l\l
a      b| l                                              ^~~~e

      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/base/nullability.h::638289::6334::  warning: note: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]expanded from macro 'absl_nullability_unknown'

  289 |   #638d | e f i n e   acbosnls_tn uklelya_bairlgi<tKy>_ u&nkk nAoBwSnL __INNuTlElR_NuAnLs_pAeTcTiRfIiBeUdT
E      _| C                                 ^A
PTURED_BY(this))
      | In file included from                                                               ^~~~s2/s2shapeutil_contains_brute_force.cc
:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 | In file included from  s2/s2shapeutil_contains_brute_force.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_contains_brute_force.ht:h21i:
sIn file included from )../src/s2/s2point.h): 27A:
BIn file included from S../src/s2/s2coder.hL:_23A:
TIn file included from T/usr/local/clang/include/absl/status/status.hR:I67B:
UIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hE:_29L:
IIn file included from F/usr/local/clang/include/absl/strings/cord.hE:T94I:
MIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.h_:B31O:
U/usr/local/clang/include/absl/synchronization/mutex.hN:D549 :{40
:       | warning:       ^~~~type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      | ../src/s2/util/coding/coder.h                     ^:
36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:In file included from 1s2/s2shapeutil_contains_brute_force.cc:: 18:
warning: In file included from ../src/s2/s2shapeutil_contains_brute_force.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from ../src/s2/s2point.h:27:
  In file included from 463../src/s2/s2coder.h | :A23B:
SIn file included from L/usr/local/clang/include/absl/status/status.h_:L67O:
GIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hI:N29T:
EIn file included from R/usr/local/clang/include/absl/strings/cord.hN:A94L:
_In file included from D/usr/local/clang/include/absl/strings/internal/cordz_info.hE:F31I:
N/usr/local/clang/include/absl/synchronization/mutex.hE:_551M:A40K:E _warning: Ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]H
ECK  _551O | P _ SsTtRaItNiGc_ EbXoTol DeEcRrNe(m
e      n| t^S
ync/usr/local/clang/include/absl/log/internal/check_op.hh:S450e:m25(:M unote: texpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'e
x*   a450b | s l _ n o n nxu,l lx ,m uc,o
n      s| t                                       ^ 
ch/usr/local/clang/include/absl/base/nullability.ha:r241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle)f
i      n| e                        ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 _  N241o | n#nduelfli
n      e|                       ^a
bsl_nonnull _NoIn file included from ns2/s2shapeutil_contains_brute_force.ccn:u18l:
lIn file included from 
../src/s2/s2shapeutil_contains_brute_force.h      :| 21                     ^:

In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |       In file included from  s2/util/coding/coder.cc : 19 :
 In file included from  ../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hb:a21s:
e/usr/local/clang/include/absl/log/internal/check_op.h_:i465n:t1e:r nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::Pe  r465T | hArBeSaLd_SLyOnGc_hI*N TaEbRsNlA_Ln_oDnEnFuIlNlE _wM,A
K      E| _                                                               ^C
HE/usr/local/clang/include/absl/base/nullability.hC:K241_:O22P:_ Snote: Texpanded from macro 'absl_nonnull'R
IN  G241_ | E#XdTeEfRiNn(ec oanbsstl _vnooindn*u lalb s_lN_onnonnunlull
l      )| ;                     ^

      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   externIn file included from  s2/s2shapeutil_contains_brute_force.cct:e18m:
pIn file included from l../src/s2/s2shapeutil_contains_brute_force.ha:t21e:
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from  ../src/s2/s2coder.hc:h23a:
rIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:
 In file included from M/usr/local/clang/include/absl/strings/internal/cordz_info.ha:k31e:
C/usr/local/clang/include/absl/synchronization/mutex.hh:e556c:k38O:p Swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ing  (556  |     \v
o      i| d                              ^ 
Lo/usr/local/clang/include/absl/base/nullability.hc:k241S:l22o:w Lnote: oexpanded from macro 'absl_nonnull'o
p(  S241y | n#cdheWfaiinteP aarbasmls_*n oanbnsull_ln o_nNnounlnlu lwla
i      t| p                     ^,
 i nIn file included from {t
s2/util/coding/coder.cc       :f| 19       ^l:
a
In file included from g../src/s2/util/coding/coder.hs:)36;:
/usr/local/clang/include/absl/base/nullability.h
In file included from :      ../src/s2/base/casts.h257| ::                                     ^3623
:
:In file included from /usr/local/clang/include/absl/base/nullability.h ../src/s2/base/logging.h:note: :expanded from macro 'absl_nullable'24121
::
22In file included from :/usr/local/clang/include/absl/log/check.h   :257note: 37 | expanded from macro 'absl_nonnull':
#
In file included from d  /usr/local/clang/include/absl/log/internal/check_impl.he241:f | 21i#:
d/usr/local/clang/include/absl/log/internal/check_op.hne:ef465i :na66eb: s alwarning: b_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sn
lu_l  ln465oa | nAbBnlSuLe_lL OlG_ _N_IuNNolTnElnaRubNlAllL
e_      
D| E                           ^F| 
                      ^I
NE_MAKE_CHECK_OP_SIn file included from Ts2/s2shapeutil_contains_brute_force.ccR:I18N:
GIn file included from _../src/s2/s2shapeutil_contains_brute_force.hE:X21T:
EIn file included from R../src/s2/s2point.hN:(27c:
oIn file included from n../src/s2/s2coder.hs:t23 :
vIn file included from o/usr/local/clang/include/absl/status/status.hi:d67*:
 In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:s29l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:)31;:

/usr/local/clang/include/absl/synchronization/mutex.h      :| 558                                                                 ^:
35: /usr/local/clang/include/absl/base/nullability.h:warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22In file included from :  s2/s2winding_operation.cc 558:note:  | expanded from macro 'absl_nonnull'19 
:
 In file included from   b../src/s2/s2winding_operation.h241o: | o#23ld :
eLfIn file included from oic../src/s2/s2builder.hnke:S l31aob:
wsWIn file included from li_/usr/local/clang/include/absl/container/flat_hash_set.htnh:oD43ne:
nauIn file included from dll/usr/local/clang/include/absl/container/hash_container_defaults.hli: n19_eN:
(oMIn file included from nun/usr/local/clang/include/absl/container/internal/hash_function_defaults.hHuo:lwl59 
a:
      bIn file included from | s                     ^/usr/local/clang/include/absl/strings/cord.hl
_:n82o:
nIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.huIn file included from :ls2/util/coding/coder.ccl23: :
19hIn file included from :
o/usr/local/clang/include/absl/crc/crc32c.hIn file included from w:../src/s2/util/coding/coder.h,32:
:
36      In file included from :
| /usr/local/clang/include/absl/strings/str_format.hIn file included from                                   ^:../src/s2/base/casts.h
84:/usr/local/clang/include/absl/base/nullability.h:
36:In file included from :
241/usr/local/clang/include/absl/strings/internal/str_format/bind.hIn file included from ::../src/s2/base/logging.h2224:::
21 In file included from :
note: /usr/local/clang/include/absl/container/inlined_vector.hIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/log/check.h
56::
  37In file included from 241:
/usr/local/clang/include/absl/container/internal/inlined_vector.h | In file included from :#/usr/local/clang/include/absl/log/internal/check_impl.hd35:e:
21f/usr/local/clang/include/absl/types/span.h:
i:/usr/local/clang/include/absl/log/internal/check_op.hn799:e:465 32:a:66b :swarning:  lwarning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n

on/usr/local/clang/include/absl/base/nullability.h  n:799u241 | lS:lp22 a:_n N<note: oexpanded from macro 'absl_nonnull'cn
no  un241ls | tl#
 d      Te| f>                     ^i 
nMea kaebCsoIn file included from lns2/s2shapeutil_contains_brute_force.cc_s:nt18oS:
npIn file included from na../src/s2/s2shapeutil_contains_brute_force.hun:l(21Tl:
 *In file included from _ ../src/s2/s2point.hNa:ob27ns:
nlIn file included from u_../src/s2/s2coder.hln:lu23
l:
      lIn file included from | a/usr/local/clang/include/absl/status/status.h                     ^b:
l67e:
 In file included from In file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs2/util/coding/coder.cce::g2919i:
n:
In file included from 
In file included from /usr/local/clang/include/absl/strings/cord.h      ../src/s2/util/coding/coder.h:| :94                               ^36:

:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.h../src/s2/base/casts.h:::3125736:
In file included from ../src/s2/base/logging.h:
:/usr/local/clang/include/absl/synchronization/mutex.h:23:21:559:
 :In file included from note: 46/usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nullable'::
 37:
  warning: In file included from 257type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_impl.h | 
:#21d:
  /usr/local/clang/include/absl/log/internal/check_op.he559:f | 465i :n 1 e:    awarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b 
 s l   _465 n |  uA lB Sl La _b Ll Oe G  __ I NN Tu E lR Nl Aa Lcb_oDlnEesF
tI       NC| E                      ^o_
nMdAiKtEi_oCnH*E CaKb_sOlP__nSuTIn file included from lRs2/s2winding_operation.cclIa:NbG19l_e:
E XIn file included from cTo../src/s2/s2winding_operation.hEnR:dN23,(:

cIn file included from       o../src/s2/s2builder.h| n:                                             ^s31
t:
 /usr/local/clang/include/absl/base/nullability.hvIn file included from :o/usr/local/clang/include/absl/container/flat_hash_set.h257i::d4323*:
: In file included from  a/usr/local/clang/include/absl/container/hash_container_defaults.hnote: bexpanded from macro 'absl_nullable':s
l19_  n:
257oIn file included from  | n#ndue/usr/local/clang/include/absl/container/internal/hash_function_defaults.hlfl:i)59n;e:

 In file included from       a/usr/local/clang/include/absl/strings/cord.h| b^:s
l82_/usr/local/clang/include/absl/log/internal/check_op.h:
n:uIn file included from 450l/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:l:25a23:b:
 lIn file included from note: eexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/crc/crc32c.h 
:_32  N:
450uIn file included from  | l /usr/local/clang/include/absl/strings/str_format.hl a: b 84l :
e In file included from 
x/usr/local/clang/include/absl/strings/internal/str_format/bind.h      ,:|  24                      ^x:

,In file included from  /usr/local/clang/include/absl/container/inlined_vector.hc:o56n:
sIn file included from t/usr/local/clang/include/absl/container/internal/inlined_vector.h :c35h:
a/usr/local/clang/include/absl/types/span.hr:*801 :a32In file included from b:s2/s2shapeutil_contains_brute_force.ccs :lwarning: 18type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_:
n
In file included from o../src/s2/s2shapeutil_contains_brute_force.hn:n  21u801:
l | In file included from l ../src/s2/s2point.h) :
 27       :
|  In file included from                         ^ ../src/s2/s2coder.h
 :/usr/local/clang/include/absl/base/nullability.h 23: :
241 In file included from : /usr/local/clang/include/absl/status/status.h22 :: 67  note: :
expanded from macro 'absl_nonnull' In file included from 
 /usr/local/clang/include/absl/status/internal/status_internal.h   :241 29 |  :
# In file included from d /usr/local/clang/include/absl/strings/cord.he :f 94i :
n In file included from e /usr/local/clang/include/absl/strings/internal/cordz_info.h  :a 31bT:
s/usr/local/clang/include/absl/synchronization/mutex.h*l:_ 562na:bo23sn:nl u_warning: lntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lu
 l_lNa  ob562nl | n eu l vloe
in      dd|  )                     ^L 
oncokeSxlcoewp(tM u{H
o      w|                                 ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_257n:o23n:n unote: lexpanded from macro 'absl_nullable'l
 h  o257w | ,# dceofnisnte  Caobnsdli_tniuolnl*a balbes l__Nnuullllaabbllee
       c| o                      ^n
d,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nuIn file included from ls2/s2text_format.ccl:a16b:
le wIn file included from a../src/s2/s2text_format.hi:t34p:
)In file included from  ../src/s2/mutable_s2shape_index.hA:B30S:
LIn file included from _/usr/local/clang/include/absl/container/btree_map.hA:T66T:
RIn file included from I/usr/local/clang/include/absl/container/internal/btree.hB:U73T:
EIn file included from _/usr/local/clang/include/absl/strings/cord.hC:O82L:
DIn file included from ;/usr/local/clang/include/absl/crc/internal/crc_cord_state.h
:      23| :
                                   ^In file included from 
/usr/local/clang/include/absl/crc/crc32c.h:32/usr/local/clang/include/absl/base/nullability.h:
:257/usr/local/clang/include/absl/strings/str_format.h::23860:: 43:note:  expanded from macro 'absl_nullable'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  257 | #d  e860f | i n ef raibesnld_ nvuolilda bAlbes l_FNourlmlaatbFlleu
s      h| (                      ^F
ormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/s2shapeutil_contains_brute_force.ccs:l18_:
nIn file included from o../src/s2/s2shapeutil_contains_brute_force.hn:n21u:
lIn file included from l../src/s2/s2point.h :_27N:
oIn file included from ../src/s2/s2coder.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/status/status.h
:      67| :
                     ^In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemIn file included from os2/s2text_format.ccv:e16(:
bIn file included from a../src/s2/s2text_format.hs:e34_:
iIn file included from n../src/s2/mutable_s2shape_index.ht:e30r:
nIn file included from a/usr/local/clang/include/absl/container/btree_map.hl::66::
PIn file included from e/usr/local/clang/include/absl/container/internal/btree.hr:T73h:
rIn file included from e/usr/local/clang/include/absl/strings/cord.ha:d82S:
yIn file included from n/usr/local/clang/include/absl/crc/internal/crc_cord_state.hc:h23*:
 In file included from a/usr/local/clang/include/absl/crc/crc32c.hb:s32l:
_/usr/local/clang/include/absl/strings/str_format.hn:o867n:n60u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
);
      |                                                   ^867
 |  /usr/local/clang/include/absl/base/nullability.h :e241x:p22l:i cnote: iexpanded from macro 'absl_nonnull't
 F  o241r | m#adteSfiinnke( satbrs_lf_onromnantu_liln t_eNronnanlu:l:lF
o      r| m                     ^a
tSinkImpl* absl_nonnuIn file included from ls2/s2shapeutil_contains_brute_force.ccl: 18s:
)In file included from 
../src/s2/s2shapeutil_contains_brute_force.h      :| 21                                                           ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
dIn file included from e/usr/local/clang/include/absl/strings/cord.hf:i94n:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n578o:n45n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
_No  n578n | u l lv
o      i| d                     ^ 
Block(base_internal::PerThreIn file included from as2/s2text_format.ccd:S16y:
nIn file included from c../src/s2/s2text_format.hh:*34 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l30_:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n66u:
lIn file included from l/usr/local/clang/include/absl/container/internal/btree.h :s73):
;In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 82                                            ^:

In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:/usr/local/clang/include/absl/base/nullability.h23::
241In file included from :/usr/local/clang/include/absl/crc/crc32c.h22::32 :
note: /usr/local/clang/include/absl/strings/str_format.hexpanded from macro 'absl_nonnull':
869:40  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi  n869e |   a bsstlr__nfoonrnmualtl_ i_nNtoenrnnualll:
:      F| o                     ^r
matSinkImpl* absIn file included from ls2/s2shapeutil_contains_brute_force.cc_:n18o:
nIn file included from n../src/s2/s2shapeutil_contains_brute_force.hu:l21l:
 In file included from s../src/s2/s2point.hi:n27k:
_In file included from ;../src/s2/s2coder.h
:      23| :
                                       ^In file included from 
/usr/local/clang/include/absl/status/status.h:67/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::2229::
 In file included from /usr/local/clang/include/absl/strings/cord.hnote: :expanded from macro 'absl_nonnull'94
:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h241: | 31#:
d/usr/local/clang/include/absl/synchronization/mutex.he:f580i:n34e:  awarning: btype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
l_n  o580n | n u lbla s_eN_oinnntuelrln
a      l| :                     ^:
PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27In file included from :
s2/util/coding/coder.ccIn file included from :../src/s2/s2coder.h19::
23In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/status/status.h36::
67In file included from :
../src/s2/base/casts.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h36::
29In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/strings/cord.h21::
94In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h37::
31In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/synchronization/mutex.h21::
590:/usr/local/clang/include/absl/log/internal/check_op.h40::502 :1warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |     502e | xApBlSiLc_iLtO GM_utIeNxT(EcRoNnAsLt_ CvHoElCaKt_iOlPe_ IMMuPtLe(xC*h eacbks_lE_Qn,u l=l=a)b
l      e|  ^/
*ig/usr/local/clang/include/absl/log/internal/check_op.hn:o488r:e32d:* /note: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
{}
      |                                          ^488
 |  /usr/local/clang/include/absl/base/nullability.h :i257n:l23i:n enote:  expanded from macro 'absl_nullable'c
on  s257t | e#xdperf icnoen satb sclh_anru*l laabbslle_ n_uNlullalbalbel en
a      m| e                      ^#
#Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlIn file included from is2/util/coding/varint.ccn:e24 :
cIn file included from o../src/s2/base/logging.hn:s22t:
eIn file included from x/usr/local/clang/include/absl/log/log.hp:r209 :
cIn file included from o/usr/local/clang/include/absl/log/internal/log_impl.hn:s20t:
 In file included from c/usr/local/clang/include/absl/log/absl_vlog_is_on.hh:a63r:
* /usr/local/clang/include/absl/log/internal/vlog_config.ha:b49s:l37_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
able    49n | aimnet# #RIemgpils(t e r A n d I n i t i a l i z e ( V L o\g
S      i| t                               ^e
* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | v#)d;e
f      i| n                                    ^e
 ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241_ | N#udlelfaibnlee 
a      b| s                      ^l
_In file included from ns2/s2wedge_relations.cco:In file included from n18s2/util/coding/coder.ccn:
:uIn file included from 19l../src/s2/s2wedge_relations.h:
l:In file included from  24../src/s2/util/coding/coder.h_:
:NIn file included from 36o../src/s2/s2point.h:
n:In file included from n25../src/s2/base/casts.hu:
:lIn file included from 36l../src/s2/util/coding/coder.h:

:In file included from       36../src/s2/base/logging.h| :
:                     ^In file included from 21
../src/s2/base/casts.h:
:In file included from 34/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/log/log.h:
:In file included from 209/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/log_impl.h:
:/usr/local/clang/include/absl/log/internal/check_op.h22::
502In file included from :/usr/local/clang/include/absl/log/internal/log_message.h1::53In file included from  :
warning: s2/util/coding/varint.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:/usr/local/clang/include/absl/types/source_location.h
24::
/usr/local/clang/include/absl/log/internal/check_op.h113In file included from ::../src/s2/base/logging.h49819:::2235 :
:In file included from warning:  /usr/local/clang/include/absl/log/log.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
209
:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20  :
498In file included from    | /usr/local/clang/include/absl/log/absl_vlog_is_on.h113 : |  63In file included from   :
s2/s2shapeutil_contains_brute_force.cc  /usr/local/clang/include/absl/log/internal/vlog_config.h:   :18  63:
i :In file included from nc43../src/s2/s2shapeutil_contains_brute_force.hto:: n 21vswarning: :
1ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from , 
../src/s2/s2point.h c:i   nh2763ta:
 |   rIn file included from v 2*../src/s2/s2coder.he, :x a23pcb:
loisIn file included from ncl/usr/local/clang/include/absl/status/status.h_sitt :n cch67ooa:
rnnIn file included from s*tn/usr/local/clang/include/absl/status/internal/status_internal.h eau:xbl29psrl:
_ In file included from Vn/usr/local/clang/include/absl/strings/cord.hLo:on94gn:
SuIn file included from il/usr/local/clang/include/absl/strings/internal/cordz_info.htl:e 31(e:
cx/usr/local/clang/include/absl/synchronization/mutex.hop:nr624st:te68 x:ct h)warning: a 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r{
*   a b s   l624 _ |  n  o  ne nx pu ll il c  if t)  
\M      
u|       t                                          ^e| 
x                                  ^L/usr/local/clang/include/absl/base/nullability.h
o:c241/usr/local/clang/include/absl/base/nullability.hk::(22241M::u 22t:enote:  xexpanded from macro 'absl_nonnull'note: &
expanded from macro 'absl_nonnull' 
  m241  u | 241 # | Ad#BedSfeLif_niIenN eTa EbaRsblNs_AlnL_o_nnAonTnuTnlRulIl Bl_U NT_oENn_onCnuAnlPulTl
Ul      R
| E                           ^D| 
_                     ^B
Y(this))
      |                                                                    ^~~~
l file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/util/coding/varint.cco:n24n:
uIn file included from l../src/s2/base/logging.hl: 22_:
NIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h
693:       warning20| s:
                     ^ generatedIn file included from 
.
/usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndIniIn file included from ts2/s2wedge_relations.cci:a18l:
iIn file included from z../src/s2/s2wedge_relations.he:(24V:
LIn file included from o../src/s2/s2point.hg:S25i:
tIn file included from e../src/s2/util/coding/coder.h*: 36a:
bIn file included from s../src/s2/base/casts.hl:_34n:
oIn file included from n/usr/local/clang/include/absl/log/log.hn:u209l:
lIn file included from  /usr/local/clang/include/absl/log/internal/log_impl.hv:)22;:

In file included from       /usr/local/clang/include/absl/log/internal/log_message.h| :                                                           ^53
:
/usr/local/clang/include/absl/types/source_location.h/usr/local/clang/include/absl/base/nullability.h::133241::2522::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241   | 133# | d e fcionnes taebxsplr_ ncoonnnsutl lc h_aNro*n naublsll
_      n| o                     ^n
null file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/util/coding/varint.cco:n24n:
uIn file included from l../src/s2/base/logging.hl: 22_:
NIn file included from o/usr/local/clang/include/absl/log/log.hn:n209u:
lIn file included from l/usr/local/clang/include/absl/log/internal/log_impl.h
:      20| :
                     ^In file included from 
/usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnuIn file included from ls2/s2wedge_relations.ccl: 18c:
oIn file included from n../src/s2/s2wedge_relations.hs:t24 :
fIn file included from i../src/s2/s2point.hl:e25_:
;In file included from 
../src/s2/util/coding/coder.h      :| 36              ^:

In file included from ../src/s2/base/casts.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :/usr/local/clang/include/absl/log/log.h22::209 :
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/log_impl.h
:22:
  In file included from 241/usr/local/clang/include/absl/log/internal/log_message.h | :#53d:
e/usr/local/clang/include/absl/types/source_location.hf:i165n:e15 /usr/local/clang/include/absl/synchronization/mutex.h:a: b635swarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l29
_:n   owarning: 165ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | n
 u lc  lo635 n | _ sN toe nxcnphulalirl*c
i       ta|                       ^bM
sult_enxoLnoncukl(lM uftielxe*_ naabmsel__ n=o n"n"u;l
l       | m              ^u
) /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:E Xnote: Cexpanded from macro 'absl_nonnull'L
US  I241V | E#_dLeOfCiKn_eF UaNbCsTlI_OnNo(nmnuu)l
l       | _                            ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_/usr/local/clang/include/absl/synchronization/mutex.hn:o678n:n35u:l lwarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ile,   678i | n t  elxipnlei,c
i      t|                           ^R
ea/usr/local/clang/include/absl/base/nullability.hd:e241r:M22u:t enote: xexpanded from macro 'absl_nonnull'L
oc  k241( | M#udteefxi*n ea basbls_ln_onnonnunlull lm u_)N oAnBnSuLl_lS
H      A| R                     ^E
D_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2wedge_relations.cc681: | 18 :
 In file included from e../src/s2/s2wedge_relations.hx:p24l:
iIn file included from c../src/s2/s2point.hi:t25 :
RIn file included from e../src/s2/util/coding/coder.ha:d36e:
rIn file included from M../src/s2/base/casts.hu:t34e:
xIn file included from L/usr/local/clang/include/absl/log/log.ho:c209k:
(In file included from M/usr/local/clang/include/absl/log/internal/log_impl.hu:tIn file included from 22es2/util/coding/coder.cc:
x:&/usr/local/clang/include/absl/log/internal/log_message.h19 ::
m119In file included from u:../src/s2/util/coding/coder.h 41:A:36B :
SIn file included from Lwarning: ../src/s2/base/casts.h_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:I
36N:
TIn file included from   E../src/s2/base/logging.hR119:N | 21A :
L In file included from _L/usr/local/clang/include/absl/log/check.hAo:gT37TM:
ReIn file included from Is/usr/local/clang/include/absl/log/internal/check_impl.hBs:Ua21Tg:
Ee/usr/local/clang/include/absl/log/internal/check_op.h_&:C 503AT:Po1TS:Ui Rnwarning: Ektype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]DA
l_sB  oY(503(a | tAbhBisSsLl)_,:L
O:      GL| _o                                                                         ^~~~Ig
NSTiEnRkN*A La_bCsHlE_CnKo_nOnPu_lIlM PsLi(nCkh)e/usr/local/clang/include/absl/synchronization/mutex.h;c:
k689      _:N| 35E                                        ^:,
  warning: !/usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]=:
)241
:        22| 689:^ |  
 note:  expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_op.he
:x488In file included from   p:s2/util/coding/varint.cc241l32i: | :#c24 di:
tnote:  eIn file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'Rf../src/s2/base/logging.h
ei:an  e22d488 :
e | raIn file included from  Mb/usr/local/clang/include/absl/log/log.h uis:tnel209lxi_:
LnonIn file included from ec o/usr/local/clang/include/absl/log/internal/log_impl.hkcn:(oMn20nusu:
ttelIn file included from exxl/usr/local/clang/include/absl/log/absl_vlog_is_on.h *p :a_rN63ob s:
lnc/usr/local/clang/include/absl/log/internal/vlog_config.ho_nn:nsou133tn l:ncl37uh
:la       lr| warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m*u                     ^
 ,a
   bc133so | lni_sntnt  uCRleolngdaiibstliteeorIn file included from  nnAas2/s2wedge_relations.cc&nmd: eI#18cn#i:
oItmIn file included from nida)lp../src/s2/s2wedge_relations.h
ilz:      (e 24| (                                  ^V L:

 o In file included from g/usr/local/clang/include/absl/base/nullability.hS i../src/s2/s2point.h: t:241 e 25:*  :
22 a In file included from :b s../src/s2/util/coding/coder.h  l :note: _ n36expanded from macro 'absl_nonnull' o :

n nIn file included from    u\../src/s2/base/casts.h241l
l: |       # d34| ve):
                               ^f;iIn file included from 

n/usr/local/clang/include/absl/log/log.h      e/usr/local/clang/include/absl/base/nullability.h:|  :a209                                    ^257b:

:sIn file included from 23l/usr/local/clang/include/absl/base/nullability.h_/usr/local/clang/include/absl/log/internal/log_impl.h::n: 241o22:note: n:
22/usr/local/clang/include/absl/log/internal/log_message.hexpanded from macro 'absl_nullable'n:u:
 l121note:   l:expanded from macro 'absl_nonnull'257 41
 | _#:  Ndo 241enwarning:  | fnitype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#udleln
f
ei      n e  | a                     ^b s121
alb | _ s nLloug_lnMleosasnabgnel&u eTlo Sli_n kN_OuNlnollyn(anabbusllle:l:

L            o| | g                      ^                     ^S

ink* absl_nonIn file included from ns2/util/coding/coder.ccu:l19l:
 In file included from s../src/s2/util/coding/coder.hi:n36k:
)In file included from ;../src/s2/base/casts.h
:      36| :
                                        ^In file included from 
../src/s2/base/logging.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/check.h::2237::
 In file included from note: /usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nonnull':
21:
  /usr/local/clang/include/absl/log/internal/check_op.h241: | 503#:d1e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 In file included from a/usr/local/clang/include/absl/log/internal/check_op.hs2/util/coding/varint.ccb::s48924l::
_47nIn file included from :o../src/s2/base/logging.h nnote: :nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'22u
:
lIn file included from l/usr/local/clang/include/absl/log/log.h   :489_209 | N:
 oIn file included from  n/usr/local/clang/include/absl/log/internal/log_impl.h n: u20l :
l In file included from 
c/usr/local/clang/include/absl/log/absl_vlog_is_on.h      o:n| 63s                     ^:
t
/usr/local/clang/include/absl/log/internal/vlog_config.h :T1571:&11 :v 1warning: ,type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr conIn file included from ss2/s2wedge_relations.cctIn file included from : s2/s2shapeutil_build_polygon_boundaries.cc18c::
h25In file included from a:
../src/s2/s2wedge_relations.hIn file included from r:*../src/s2/mutable_s2shape_index.h24 :a:
33bIn file included from :
s../src/s2/s2point.hIn file included from l:../src/s2/base/commandlineflags.h_25:n:
21uIn file included from :
l../src/s2/util/coding/coder.hlIn file included from :a/usr/local/clang/include/absl/flags/flag.h36b::
l40In file included from e:
../src/s2/base/casts.h /usr/local/clang/include/absl/flags/commandlineflag.h:n:34a163:
m:eIn file included from 56#/usr/local/clang/include/absl/log/log.h:#:I 209m:
warning: pIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l/usr/local/clang/include/absl/log/internal/log_impl.h
(: 22 :
   /usr/local/clang/include/absl/log/internal/log_message.h163 :  |  158  :  32b :o   owarning:  ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]  
 P a   r 158s  | e  F \rL
oog      mM(| ea                               ^sb
ssal/usr/local/clang/include/absl/base/nullability.hg::e:257&s: to23rp:ei nrnote: agt_expanded from macro 'absl_nullable'ovr
i<  <e257(w | v #vdoaiedfl*ui ena,eb  salbss_tlnd_un:lul:alsblltearb i nlveg )_* N{ 
ua      lb| ls                               ^al
b_lne/usr/local/clang/include/absl/base/nullability.ho
:n      257n| :u                      ^23l
:l  note: eexpanded from macro 'absl_nullable'r
rIn file included from o  s2/util/coding/coder.ccr257:) | 19#;:
d
eIn file included from f      ../src/s2/util/coding/coder.hi| n:e                                                       ^36 
a:
bIn file included from /usr/local/clang/include/absl/base/nullability.hs../src/s2/base/casts.hl::_24136n::
u22In file included from l:../src/s2/base/logging.hl :anote: 21bexpanded from macro 'absl_nonnull':
l
In file included from e/usr/local/clang/include/absl/log/check.h   :_24137N | :
u#lIn file included from ld/usr/local/clang/include/absl/log/internal/check_impl.haeb:lf21ei:

/usr/local/clang/include/absl/log/internal/check_op.hn      :e| 503                      ^ :
a1b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
on/usr/local/clang/include/absl/log/internal/check_op.hn:u498l:l35 :_ Nnote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
In file included from ns2/s2wedge_relations.cc  u:498l18 | l :

 In file included from        ../src/s2/s2wedge_relations.h|  :                      ^24 
:
iIn file included from n../src/s2/s2point.ht: 25v:
1In file included from ,../src/s2/util/coding/coder.h :i36n:
tIn file included from  ../src/s2/base/casts.hv:234,:
 In file included from c/usr/local/clang/include/absl/log/log.h:o209n:
sIn file included from t/usr/local/clang/include/absl/log/internal/log_impl.h :c22h:
a/usr/local/clang/include/absl/log/internal/log_message.hr:*161 :a38b:s lwarning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
onn  u161l | l   eLxopgrMteeIn file included from sxss2/s2shapeutil_build_polygon_boundaries.ccta:)g25 e:
&{ In file included from  o../src/s2/mutable_s2shape_index.h p: e33r :
a In file included from t o../src/s2/base/commandlineflags.h r: <21 <:
( cIn file included from o n/usr/local/clang/include/absl/flags/flag.h s: t40  :
 v /usr/local/clang/include/absl/flags/commandlineflag.ho :i\193d
:*      27 | :a                                  ^ b
warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l/usr/local/clang/include/absl/base/nullability.h_
n:u241l  l:193a22 | b: l  enote: v expanded from macro 'absl_nonnull' iv
r)  t 241{u
 | In file included from a      l#s2/s2shapeutil_coding.cc|                                       ^d:v
e28of:
/usr/local/clang/include/absl/base/nullability.hiiIn file included from :dn../src/s2/s2lax_polygon_shape.h257 e: :R36a23e:
ab:sIn file included from l../src/s2/s2polygon.hd _:(note: vn34expanded from macro 'absl_nullable'oo:

inIn file included from ndu  ../src/s2/mutable_s2shape_index.h*l257: l |  #30a_d:
bIn file included from Non/usr/local/clang/include/absl/container/btree_map.hsn:lu67l_:
ln
/usr/local/clang/include/absl/container/internal/btree_container.ho      :n| 523                     ^n:
u31l:l  warning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
t  )  523 157 | cIn file included from  |  o Vs2/s2shapeutil_contains_brute_force.ccen L o:gfsi 18 S itn:
 t e *eIn file included from  =    ../src/s2/s2shapeutil_contains_brute_force.h a0b;s la:
 _b21       n s:
| u llIn file included from                           ^ lf_../src/s2/s2point.hn
aabll:eu/usr/local/clang/include/absl/base/nullability.hs27e ,l::
S l241In file included from efta:../src/s2/s2coder.haVlb22:Msol:23ed)ue :
;l
 note: In file included from e      _expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.hL| iN
:                              ^su67
  tl:
241H/usr/local/clang/include/absl/container/internal/btree_container.helIn file included from  | :#aa/usr/local/clang/include/absl/status/internal/status_internal.h496ddeb::Ffoil299rnTe:

:ee In file included from        satbOs/usr/local/clang/include/absl/strings/cord.h| note: nmacro 'ABSL_INTERNAL_X' defined herelly:                      ^
_(n
o94
        n:
| 496          ^nIn file included from  | 
u/usr/local/clang/include/absl/strings/internal/cordz_info.h#l:d/usr/local/clang/include/absl/base/nullability.hel31 :f:
_257/usr/local/clang/include/absl/synchronization/mutex.hiN:o:nnn23u710e:l:  l74Anote: 
:Bexpanded from macro 'absl_nullable'       S
| warning: L                     ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]_  

I257N | T#EdRe  fN710iAn | eL  a_ Xb(seFxlu_pnlnciu,lcl iaCbatl el Wl_reNeui,l ltKaebQlrueMau
lt      ,e| x L                      ^oMc
Qku(aMlu,t eKxV&In file included from a s2/util/coding/varint.ccmlu:u 24Ae:
B,SIn file included from  LMIn file included from ../src/s2/base/logging.h_Vs2/s2wedge_relations.cc:Ia:22NlT18:
uEe:
In file included from R,In file included from /usr/local/clang/include/absl/log/log.hN/usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/util/math/mathutil.cc -o s2/util/math/mathutil.o
 ../src/s2/s2wedge_relations.h:A.:209L._24:
.A):
In file included from T TIn file included from /usr/local/clang/include/absl/log/internal/log_impl.h R ../src/s2/s2point.h:I B:20 U\25:
T
E:
In file included from       _In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h| C        ^../src/s2/util/coding/coder.h:A
P:63T36:
U/usr/local/clang/include/absl/log/internal/vlog_config.h:
R:EIn file included from 158D../src/s2/base/casts.h:_:15B34:Y:
 (In file included from warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/log.hh
:i209  s:
158)In file included from  | ) /usr/local/clang/include/absl/log/internal/log_impl.h
 :       22|  :
                                                                         ^~~~V/usr/local/clang/include/absl/log/internal/log_message.h
L:o179g:S35i:t ewarning: *type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l179_ | n u lLloagbMlees sva)g;e&
       /usr/local/clang/include/absl/synchronization/mutex.ho| :p              ^718e
:r/usr/local/clang/include/absl/base/nullability.h35a::t257 o:warning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23<
:< (  note: w718expanded from macro 'absl_nullable'c | 
 h a  /usr/local/clang/include/absl/container/internal/btree_container.her257:x_ | 522#pt:dle*3ifc :iina tebwarning:   Wspassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]arl
bis_tl  _ne522nur | u lMlultaebx llLeA aoB_SbcNLlkeu_(I lMNuvlTaEtR)beNx;l
A*L _aXe      b(s
| i                                  ^l      _nn
| s                      ^oe
r/usr/local/clang/include/absl/base/nullability.hntn:_uo257lrl:_ a23msu:s)i 
gnote:       expanded from macro 'absl_nullable'n| ,
                                  ^ 
  i257n/usr/local/clang/include/absl/base/nullability.h | s#:ed241re:tf22_i:on renote: _ expanded from macro 'absl_nonnull'aa
sbs  is241gl | n_#_dnieumfplilnl,e a cbaoblnseslt  __&nN,o uncnlounllslat  b_&Nl,o
en      
n|       u  ^| l
l                      ^

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 509                     ^:
52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUIn file included from Ts2/s2shapeutil_contains_brute_force.ccE:_18C:
AIn file included from P../src/s2/s2shapeutil_contains_brute_force.hT:UIn file included from 21Rs2/s2wedge_relations.cc:
E:In file included from D18../src/s2/s2point.h_:
:BIn file included from 27Y../src/s2/s2wedge_relations.h:
(:In file included from t24../src/s2/s2coder.hh:
:iIn file included from 23s../src/s2/s2point.h:
):In file included from )25/usr/local/clang/include/absl/status/status.h,:
: In file included from 67 ../src/s2/util/coding/coder.h:
 :In file included from  36/usr/local/clang/include/absl/status/internal/status_internal.h :
: In file included from 29 ../src/s2/base/casts.h:
 :In file included from  34/usr/local/clang/include/absl/strings/cord.h :
: In file included from 94 /usr/local/clang/include/absl/log/log.h:
 :In file included from  209/usr/local/clang/include/absl/strings/internal/cordz_info.h :
: In file included from 31 /usr/local/clang/include/absl/log/internal/log_impl.h:
 :/usr/local/clang/include/absl/synchronization/mutex.h 22: :
722 /usr/local/clang/include/absl/log/internal/log_message.h: :74 190: : \42
warning: :      'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] | 
warning:                                                    ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  722/usr/local/clang/include/absl/container/internal/common.h | :   32 190:e | 9x :p  lLnote: iomacro 'ABSL_INTERNAL_IF_false' defined herecg
iMt    e32Ws | r#sidtaeegfrieMn&uet  eAoxBLpSoLec_krI(NaMTutEtRoeNxrA&L< _m<IuF( _AsfBatSdlLs:_eI:(NioTfEs_RtsNraAteLi_asAmfTi&TeR dI,(B* U.aT.Eb._) CAPTUs_Rl_EV_DAn__oBAnYRn(GtuSh_li_ls
)       ,m| 
        ^)      
(| s                                                                         ^~~~t
d::ostrIn file included from es2/s2shapeutil_coding.cca:m28&:
 In file included from o../src/s2/s2lax_polygon_shape.hs:)36):
;In file included from 
../src/s2/s2polygon.h      :| 34                                         ^:

In file included from ../src/s2/mutable_s2shape_index.h:/usr/local/clang/include/absl/base/nullability.h30::
241/usr/local/clang/include/absl/synchronization/mutex.hIn file included from ::/usr/local/clang/include/absl/container/btree_map.h22731:::67 35:
note: :/usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull' :
warning: 522type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:  
3241: |    warning: #731passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d | 
e f i  en522xe | p  l aiAbcBisStlL __WIrnNiTotEenRrNnMAuuLtl_elXx( Li_oncNskoe(rnMtun_touerxl_*la 
sas      bis| gln                     ^_,
n oinnnsuelrlt _mour,_ acsosnisgtn _Ciomnpdli,t icoonn&s tc o&n,dIn file included from  )s2/s2wedge_relations.ccc
o:      n18| s:
                                  ^tIn file included from 
 ../src/s2/s2wedge_relations.h&:/usr/local/clang/include/absl/base/nullability.h,24:
:
241      In file included from :| ../src/s2/s2point.h22  ^::
25 :
/usr/local/clang/include/absl/container/internal/btree_container.hnote: In file included from :expanded from macro 'absl_nonnull'../src/s2/util/coding/coder.h511
::  3652241:
: | In file included from  #../src/s2/base/casts.hnote: dexpanded from macro 'ABSL_INTERNAL_X':e
f34i  :
n511In file included from e | /usr/local/clang/include/absl/log/log.h  a: b209 s :
l _In file included from  n /usr/local/clang/include/absl/log/internal/log_impl.ho n: n 22uAl:
BlS/usr/local/clang/include/absl/log/internal/log_message.h L:__191NIo:Nn43TnE:uR lNlwarning: A
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L      _
| A                     ^T
T  R191I | B U TLEo_gCMAePsTsUaRgEeD&_ BoYp(etrhaitso)r)<)< ( s t d : : i o s _ b a s e &   ( * a b s l _ n\o
n      n| u                                                   ^l
l /usr/local/clang/include/absl/container/internal/common.hm:)32(:s9t:d :note: :macro 'ABSL_INTERNAL_IF_false' defined herei
os_   b32a | s#ed&e foisn)e) ;A
B      S| L                                          ^_
IN/usr/local/clang/include/absl/base/nullability.hT:E241R:N22A:L _note: Iexpanded from macro 'absl_nonnull'F
_f  a241l | s#ed(eiffi_nsea taibssfli_endo,n n.u.l.l)  __N_oVnAn_uAlRlG
S      _| _                     ^

      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2shapeutil_build_polygon_boundaries.cc:25:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnu/usr/local/clang/include/absl/container/internal/btree_container.hl:l524 :_3N:o nwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]u
ll
        | 524                     ^ | 
  ABSL_INIn file included from Ts2/s2shapeutil_build_polygon_boundaries.ccE:R25N:
AIn file included from L../src/s2/mutable_s2shape_index.h_:X33(:
iIn file included from n../src/s2/base/commandlineflags.hs:e21r:
tIn file included from _/usr/local/clang/include/absl/flags/flag.ho:r42_:
aIn file included from s/usr/local/clang/include/absl/flags/internal/flag.hs:i30g:
n/usr/local/clang/include/absl/base/call_once.h,: 53i:n22s:e rwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
or_   a53s | s i g n _aibmspll:,: ocnocnes_tf l&a,g *c oanbsstl _&nIn file included from ,o
s2/s2wedge_relations.ccn      :n| u  ^l18
l:
 In file included from /usr/local/clang/include/absl/container/internal/btree_container.hf../src/s2/s2wedge_relations.h:l:509a24:g:
52)In file included from :;../src/s2/s2point.h 
:note:       expanded from macro 'ABSL_INTERNAL_X'25| 
:
                     ^In file included from 
  ../src/s2/util/coding/coder.h509:/usr/local/clang/include/absl/base/nullability.h | 36: :
241 In file included from : ../src/s2/base/casts.h22 :: 34  :
note:  expanded from macro 'absl_nonnull'In file included from  
 /usr/local/clang/include/absl/log/log.h   :241A209 | B#:
SdLIn file included from e_/usr/local/clang/include/absl/log/internal/log_impl.hfIi:NnT22eE :
Ra/usr/local/clang/include/absl/log/internal/log_message.hNbAs:Ll_306_An:ToT3nRn:IuB lUwarning: lT type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E_
_NCoAnP  nTu306Ul | R lE 
Da      _b| Bs                     ^Yl
(_tnhoinsn)u)l,l   s t d : : u n i q u e _ p t r < L o g M e s s\a
g      e| D                                                   ^a
ta/usr/local/clang/include/absl/container/internal/common.h>: 32d:a9t:a _note: ;macro 'ABSL_INTERNAL_IF_false' defined here

      |   ^   
32 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:eIn file included from   s2/s2shapeutil_build_polygon_boundaries.ccAnote: :Bexpanded from macro 'absl_nonnull'25S
:
LIn file included from   _../src/s2/mutable_s2shape_index.h241I: | N33T#:
EdIn file included from Re../src/s2/base/commandlineflags.hNf:Ai21Ln:
_eIn file included from I /usr/local/clang/include/absl/flags/flag.hFa:_b42fs:
alIn file included from l_/usr/local/clang/include/absl/flags/internal/flag.hsn:eo30(n:
in/usr/local/clang/include/absl/base/call_once.hfu:_l96sl:a 33t_:iN sowarning: fntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]in
eudl,l    
96.       | . | . )                     ^f r
_i_eVnAd_ AsRtGdS:_:_a
t      o| m        ^i
c<uint32_tIn file included from >s2/s2shapeutil_coding.cc*: 28a:
bIn file included from s../src/s2/s2lax_polygon_shape.hl:_36n:
oIn file included from n../src/s2/s2polygon.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.hb:a30s:
eIn file included from _/usr/local/clang/include/absl/container/btree_map.hi:n67t:
e/usr/local/clang/include/absl/container/internal/btree_container.hr:n524a:l3::: Cwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
tro  l524W | o r dA(B
S      L| _                                ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Xnote: (expanded from macro 'absl_nonnull'i
ns  e241r | t#_doerf_ianses iagbns,l _innosnenrutl_lo r__Naosnsniuglnl_
i      m| p                     ^l
, const &In file included from ,s2/s2shapeutil_build_polygon_boundaries.cc :c25o:
nIn file included from s../src/s2/mutable_s2shape_index.ht: 33&:
,In file included from 
../src/s2/base/commandlineflags.h      :| 21  ^:

In file included from /usr/local/clang/include/absl/flags/flag.h:/usr/local/clang/include/absl/container/internal/btree_container.h42::
511In file included from :/usr/local/clang/include/absl/flags/internal/flag.h52::30 :
note: /usr/local/clang/include/absl/base/call_once.hexpanded from macro 'ABSL_INTERNAL_X':
97:18:   511warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      97  |           A BoSnLc_eI_NfTlEaRgN*A La_bAsTlT_RnIoBnUnTuEl_lC AfPlTaUgR)E;D
_      B| Y                 ^(
th/usr/local/clang/include/absl/base/nullability.hi:s241):)22):   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n\n
u      l| l                                                   ^ 
_N/usr/local/clang/include/absl/container/internal/common.ho:n31n:u9l:l 
      note: | macro 'ABSL_INTERNAL_IF_true' defined here                     ^

   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524In file included from :s2/s2shapeutil_build_polygon_boundaries.cc3::25 :
In file included from warning: ../src/s2/mutable_s2shape_index.h'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from   /usr/local/clang/include/absl/flags/flag.h524: | 42 :
 In file included from A/usr/local/clang/include/absl/flags/internal/flag.hB:S30L:
_/usr/local/clang/include/absl/base/call_once.hI:N111T:E40R:N Awarning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
X(in  s111e | rvto_iodr _LaoswsLiegvne,l CianlsleOrntc_eo(ra_bassls:i:gonn_ciem_pfll,a gc*o nasbts l&_,n ocnonnusltl  &f,l
a      g| ,  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Ca  l525l | a b l e & &   f n , 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241f:a22l:s enote: ,expanded from macro 'absl_nonnull' 
tr  u241e | )#;d
e      f| i                  ~~~~~~~~~~~~n
e a/usr/local/clang/include/absl/container/internal/btree_container.hb:s511l:_47n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll _  N511o | n n u l l 
        |                       ^ 
 ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/s2shapeutil_build_polygon_boundaries.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h25::
29In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/strings/cord.h33::
94In file included from :
../src/s2/base/commandlineflags.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h21::
31In file included from :
/usr/local/clang/include/absl/flags/flag.h:/usr/local/clang/include/absl/synchronization/mutex.h42::
801In file included from :/usr/local/clang/include/absl/flags/internal/flag.h20::30 :
warning: /usr/local/clang/include/absl/base/call_once.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
153:41:   warning: 801type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
  Co  n153d | i t i o nC(abloloOln c(e*Iambpsll(_sntodn:n:ualtlo mfiucn<cu)i(nvto3i/usr/local/clang/include/absl/container/internal/btree_container.h2d:*_ 526ta:>b3s*: l _awarning: nbpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]usl
ll_anb  io526nl | ni utl yl_Au nBkcSnoLonw_tInrN)oT,lE,
R
      N      | A| L                   ^                                        ^_

X(i/usr/local/clang/include/absl/base/nullability.hn/usr/local/clang/include/absl/base/nullability.h:s:241e241:r:22t22:_: o note: rnote: expanded from macro 'absl_nonnull'_expanded from macro 'absl_nonnull'
a
s  s241  i | g241#n | d,#e dfeifinnisnee er aatbb_sslol_r_n_noanonsnuslnli ugl_nNl_ oin_nmNupollnl,
n u      cl| ol                     ^n
s
      t|                       ^&
, In file included from cs2/s2shapeutil_contains_brute_force.cco:n18s:
tIn file included from  ../src/s2/s2shapeutil_contains_brute_force.h&:,21
:
      In file included from | ../src/s2/s2point.h  ^:
27:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2coder.h::50923::
52In file included from :/usr/local/clang/include/absl/status/status.h :67note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from   /usr/local/clang/include/absl/strings/cord.h509: | 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 801 :A45B:S Lwarning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]I
NTE  R801N | A L _CAoTnTdRiItBiUoTnE(_bCoAoPlT U(R*EaDb_sBlY_(ntohninsu)l)l,  f u n c ) ( v o i d *   a b s l _ n u l l a b i\l
i      t| y                                                   ^_
un/usr/local/clang/include/absl/container/internal/common.hk:n31o:w9n:) ,note: 
macro 'ABSL_INTERNAL_IF_true' defined here      
|                                             ^
   31/usr/local/clang/include/absl/base/nullability.h | :#289d:e34f:i nnote: eexpanded from macro 'absl_nullability_unknown' 
AB  S289L | _#IdNeTfEiRnNeA La_bIsFl__tnruulel(aibfi_lsiattyi_sufnikendo,w n. ._.N)u lilf__usnastpiescfiifeide
d      
|               ^| 
                                 ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from In file included from s2/s2shapeutil_coding.cc../src/s2/s2shapeutil_contains_brute_force.h::2821:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h../src/s2/s2point.h::3627:
:
In file included from In file included from ../src/s2/s2polygon.h../src/s2/s2coder.h::3423:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/status/status.h::3067:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/status/internal/status_internal.h::6729:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/cord.h::52694::
3In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/synchronization/mutex.h
:802:19: warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]526
 |   ABSL_INTER  N802A | L _ X ( i n s e r t _ o rv_oaisds*i ganb,s li_nnsuelrlta_boirl_iatsys_iugnnk_niomwpnl ,a rcgo)n;s
t       | &                  ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n289s:t34 :& ,note: 
expanded from macro 'absl_nullability_unknown'      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  289 |   #527d | e f i n e   a b s l _ n u l l a b i ltirtuye_,u nfkanloswen) ;_
N      u| l                  ~~~~~~~~~~~~l
_un/usr/local/clang/include/absl/container/internal/btree_container.hs:p509e:c47i:fIn file included from  is2/s2shapeutil_build_polygon_boundaries.ccnote: e:expanded from macro 'ABSL_INTERNAL_X'd25

:
      In file included from | ../src/s2/mutable_s2shape_index.h                                   ^:509
33 | :
 In file included from  ../src/s2/base/commandlineflags.h : 21 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
AIn file included from B/usr/local/clang/include/absl/flags/internal/flag.hS:L30_:
I/usr/local/clang/include/absl/base/call_once.hN:T194E:R31NIn file included from :As2/s2shapeutil_contains_brute_force.cc L:warning: _18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A:

TIn file included from T../src/s2/s2shapeutil_contains_brute_force.hR:  I21194B:
U | TIn file included from iE../src/s2/s2point.hn_:lCi27AnP:
eT In file included from UsR../src/s2/s2coder.htEd:D:23_::
BaYIn file included from t(/usr/local/clang/include/absl/status/status.hot:mhi67ic:
s<)uIn file included from )i,/usr/local/clang/include/absl/status/internal/status_internal.hn :t 329 2:
 _ In file included from t /usr/local/clang/include/absl/strings/cord.h> *:  94 a:
 b sIn file included from l _/usr/local/clang/include/absl/strings/internal/cordz_info.h n: o 31n n:
 u/usr/local/clang/include/absl/synchronization/mutex.h l: l   814C :o 20n t:\r o
warning: l      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]W| 
o                                              ^~~~r
d  (814
 |        |                                ^C/usr/local/clang/include/absl/container/internal/btree_container.h
o:n526d/usr/local/clang/include/absl/base/nullability.h:i:3t241:i:o n22warning: (:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b o
note: o/usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull'l: 
(511*:  a52b241s:l |  #_note: ndexpanded from macro 'ABSL_INTERNAL_X'oen
fniun  lel511  af | b usn l c_ )n( To n*  n au lb lA s_In file included from BlNs2/util/coding/coder.ccoSn_nn:Lu_uI19NlTlE:
llRIn file included from N
a../src/s2/util/coding/coder.hbAi      l:L| i36t_yA_                     ^u:
T
TnIn file included from kR../src/s2/base/casts.hnIo:wB36UIn file included from n:
)T,s2/s2shapeutil_build_polygon_boundaries.cc
In file included from E:      ../src/s2/base/logging.h_25| :C:
                   ^21AIn file included from 
:
P../src/s2/mutable_s2shape_index.hIn file included from T/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/log/check.hU:33:R241:
37E:In file included from :
D22_../src/s2/base/commandlineflags.hIn file included from :B:Y/usr/local/clang/include/absl/log/internal/check_impl.h 21(::
note: t21hIn file included from iexpanded from macro 'absl_nonnull':
/usr/local/clang/include/absl/flags/flag.hs
:/usr/local/clang/include/absl/log/internal/check_op.h)42:  ):
504241)In file included from  : | /usr/local/clang/include/absl/flags/internal/flag.h 1#:d e:30 f i:
 warning: n/usr/local/clang/include/absl/base/call_once.he  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]: a
195 b:s 16  l _:n504  o |  A Bwarning: SnL type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] n_uLl
 O G l  _  195_IN  |  N ToE   nR N An\ 
oLu_l      lnCcH| 
eE                                                   ^C      K__
| f                     ^O/usr/local/clang/include/absl/container/internal/common.hPl_
I:MaP32gL:(*CIn file included from 9 hs2/s2shapeutil_contains_brute_force.cc:aebc: sk18note: l_:
macro 'ABSL_INTERNAL_IF_false' defined here_LIn file included from E
n../src/s2/s2shapeutil_contains_brute_force.h,o :   n<2132n=:
 | u)In file included from #l
../src/s2/s2point.hdl      :e f| 27fil^:
na
In file included from eg../src/s2/s2coder.h) /usr/local/clang/include/absl/log/internal/check_op.hA: :B23S{488:
L
_:In file included from       I32/usr/local/clang/include/absl/status/status.h| N               ^::T
E 67R/usr/local/clang/include/absl/base/nullability.h:
note: N:AIn file included from expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'241L/usr/local/clang/include/absl/status/internal/status_internal.h
:_:22I29F:  :
_ f488In file included from note: a | /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull'l : 
isn  94el241i:
( | inIn file included from e# f/usr/local/clang/include/absl/strings/internal/cordz_info.h_dce:fsoa31tiinsnf:
esit/usr/local/clang/include/absl/synchronization/mutex.he ea:bxdp814s,l r.:._ nc42o.nos:)ntn u l_ _cwarning: hlV type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]_aAr
N_o*A na  bRn814usGl | l S _Cl_
no_      un
| ldl      a                     ^bil| 
te        ^i 
noanm(eb#o#oIlm p(l*(a b s l _ n o n n u l l   f u n c ) ( T\*
       a| b                               ^s
l_n/usr/local/clang/include/absl/base/nullability.hu:l257l:a23b:i lnote: iexpanded from macro 'absl_nullable't
y_  u257n | k#ndIn file included from oes2/s2shapeutil_build_polygon_boundaries.ccfw:ni25n):
,e
In file included from        ../src/s2/mutable_s2shape_index.ha| :                                         ^b33s
:
lIn file included from /usr/local/clang/include/absl/base/nullability.h_../src/s2/base/commandlineflags.hn::u28921l::
l34aIn file included from b:/usr/local/clang/include/absl/flags/flag.hl :e42 note: :
_expanded from macro 'absl_nullability_unknown'In file included from N
/usr/local/clang/include/absl/flags/internal/flag.hu:l  30l289aIn file included from :
 | bs2/s2shapeutil_coding.ccl/usr/local/clang/include/absl/base/call_once.h#:e:d28e
200:
f      :In file included from i| 40                      ^../src/s2/s2lax_polygon_shape.hn:e
:  36awarning: b:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sIn file included from l
_../src/s2/s2polygon.hn:34:
  In file included from 200../src/s2/mutable_s2shape_index.h | In file included from :vs2/util/coding/coder.cc30o:i:
d19In file included from  :
/usr/local/clang/include/absl/container/btree_map.hLIn file included from :o67w:
L/usr/local/clang/include/absl/container/internal/btree_container.he:v529e:l29C:a lwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]O
nce  (529a | b s l : : o n c e _ f l a g *   a b stlr_uneo,n nturlule )f;l
a      g| ,                            ^ 
Ca/usr/local/clang/include/absl/container/internal/btree_container.hl:l496a:b9l:e &note: &macro 'ABSL_INTERNAL_X' defined here 
fn,  
496       | | #                                       ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22A:B Snote: Lexpanded from macro 'absl_nonnull'_
IN  T241E | R#NdAeLf_iXn(eF uanbcs,l _Cnaolnlneuel,l  K_QNuoanln,u lMlQ
u      a| l                     ^,
 KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, inserIn file included from ts2/s2wedge_relations.cc_:o18r:
_In file included from a../src/s2/s2wedge_relations.hs:s24i:
gIn file included from n../src/s2/s2point.h_:i25m:
pIn file included from l../src/s2/util/coding/coder.h,: 36c:
oIn file included from n../src/s2/base/casts.hs:t34 :
&In file included from ,/usr/local/clang/include/absl/log/log.h :c209o:
nIn file included from s/usr/local/clang/include/absl/log/internal/log_impl.ht: 22&:
,
/usr/local/clang/include/absl/log/internal/log_message.h      :| 319  ^:
20: /usr/local/clang/include/absl/container/internal/btree_container.h:warning: 509type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
52: note: expanded from macro 'ABSL_INTERNAL_X'  
319 |     509  |   c o n s t   w c h aArB_StL*_ IaNbTsElR_NnAuLl_lAaTbTlReI BcUoTnEs_t../src/s2/util/coding/coder.hC:&A P36vT:
)UIn file included from ;R../src/s2/base/casts.h
E:D      36_| :
B                   ^In file included from Y
../src/s2/base/logging.h(:t21h:
/usr/local/clang/include/absl/base/nullability.hiIn file included from s:/usr/local/clang/include/absl/log/check.h)257:):37,23:
 :In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h note: :expanded from macro 'absl_nullable' 21
 :
   /usr/local/clang/include/absl/log/internal/check_op.h 257:  | 504 #:d 1e f: i  nwarning:  etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   a
 b /usr/local/clang/include/absl/log/internal/check_op.h s: l489 _ :n 47u :l\ 
note: l      expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'a| 
b                                                   ^l
e   489/usr/local/clang/include/absl/container/internal/common.h_ | : N31 u: l9 l: a  bnote: lcemacro 'ABSL_INTERNAL_IF_true' defined here
o
n      s   | t31                       ^ | T#
1d&e fvi1n,e  cAoBnSsLt_ ITN2T&E RvN2A,L _cIoFn_sttr uceh(airf*_ saabtsils_fnioendn,u l.l. .e)x pirfIn file included from t_es2/s2wedge_relations.ccsxa:tt18)i:
 sIn file included from {f ../src/s2/s2wedge_relations.hi :e d24 
 :
      \In file included from | 
        ^../src/s2/s2point.h      
:| 25                                              ^:

In file included from ../src/s2/util/coding/coder.h:/usr/local/clang/include/absl/base/nullability.h36::
241In file included from :../src/s2/base/casts.h22::34 In file included from :
note: s2/s2shapeutil_coding.ccIn file included from expanded from macro 'absl_nonnull':/usr/local/clang/include/absl/log/log.h
28::
  209In file included from 241:
../src/s2/s2lax_polygon_shape.h | In file included from :#/usr/local/clang/include/absl/log/internal/log_impl.h36d::
e22In file included from f:
../src/s2/s2polygon.hi/usr/local/clang/include/absl/log/internal/log_message.h:n:34e321:
 :In file included from a52../src/s2/mutable_s2shape_index.hb::s 30l:
_warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n/usr/local/clang/include/absl/container/btree_map.ho
:n67n:
u  /usr/local/clang/include/absl/container/internal/btree_container.hl321:l | 528 i:_n3Nl:oi nnwarning: ne'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u 
Llolg
  M      528e|  |                      ^s 
s aAgBeS&L _LIoNgTMEeRsNsAaLg_eX:(:ionpseerratt_oorr<_<a(swscihganr,_ ti*n saebrstl__onru_lalsasbilgen _vi)m p{l
,       | c                                                   ^o
nst/usr/local/clang/include/absl/base/nullability.h :&257,: 23c:o nnote: sexpanded from macro 'absl_nullable't
 In file included from &  s2/util/coding/coder.cc,257:
 | 19      #:
| dIn file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e../src/s2/util/coding/coder.h
f:  i36529n:
 | eIn file included from   ../src/s2/base/casts.h a: b36s :
 lIn file included from  _../src/s2/base/logging.h n: u21 l:
 lIn file included from  a/usr/local/clang/include/absl/log/check.h b: l37 e:
  In file included from  _/usr/local/clang/include/absl/log/internal/check_impl.h N: u21tl:
rl/usr/local/clang/include/absl/log/internal/check_op.hua:eb504,l: e1t
:r       u| warning: e                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])

;
/usr/local/clang/include/absl/log/internal/check_op.h      :| 497                  ~~~~~~~~~~~:
32: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'509
:47: note:   expanded from macro 'ABSL_INTERNAL_X'497
 |     i509n | l i n e   c o n s t eAxBpSrL _cIoNnTsEtR NcAhLa_rA*T TaRbIsBlU_TnEu_lClAaPbTlUeR EnDa_mBeY#(#tIhmipsl)() ,                                    \ 
        |                                 ^ 
 \/usr/local/clang/include/absl/base/nullability.h
:      257| :                                              ^~~~23
: note: expanded from macro 'absl_nullable'
  /usr/local/clang/include/absl/container/internal/btree_container.h257: | 528#:d3e:f iwarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s511l:_52n:u lnote: lexpanded from macro 'ABSL_INTERNAL_X'a
ble   511_ | N u l l a b l e 
        | A                      ^BIn file included from 
Ss2/s2wedge_relations.ccL:_18I:
NIn file included from T../src/s2/s2wedge_relations.hIn file included from E:s2/util/coding/coder.ccR24:N:
19AIn file included from :
L../src/s2/s2point.hIn file included from _:../src/s2/util/coding/coder.hA25:T:
36TIn file included from :
R../src/s2/util/coding/coder.hIn file included from I:../src/s2/base/casts.hB36:U:
36TIn file included from :
E../src/s2/base/casts.hIn file included from _:../src/s2/base/logging.hC34:A:
21PIn file included from :
T/usr/local/clang/include/absl/log/log.hIn file included from U:/usr/local/clang/include/absl/log/check.hR209:E:
37DIn file included from :
_/usr/local/clang/include/absl/log/internal/log_impl.hIn file included from B:/usr/local/clang/include/absl/log/internal/check_impl.hY22:(:
21t:
h/usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/log/internal/check_op.hi::s340504)::)461)::    warning: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 

  /usr/local/clang/include/absl/log/internal/check_op.h :   498 340:  | 35  :    fnote:  riexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' e n d   v o i d   A\b
s      l| F                                                   ^o
rm/usr/local/clang/include/absl/container/internal/common.ha:t31F:l9u:s hnote: (macro 'ABSL_INTERNAL_IF_true' defined hereS
tri   n31g | i#fdyeSfiinnke*  AaBbSsLl__InNoTnEnRuNlAlL _sIiFn_kt,r
u      e| (                                             ^i
f_s/usr/local/clang/include/absl/base/nullability.ha:t241i:s22f:i enote: dexpanded from macro 'absl_nonnull',
 .  .241. | )# dieff_isnaet iasbfsile_dn
o      n| n        ^u
ll _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:u3l:l awarning: b'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
lity_  u528n | k n oAwBnS L__NIuNlTlE_RuNnAsLp_eXc(iifniseedr
t      _| o                                 ^r
_assign, insert_or_assign_impl, In file included from cs2/s2shapeutil_contains_brute_force.cco:n18s:
tIn file included from  ../src/s2/s2shapeutil_contains_brute_force.h&:,21 :
cIn file included from o../src/s2/s2point.hn:s27t:
 In file included from &../src/s2/s2coder.h,:
23      :
| In file included from   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 529/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 815 : 16 :t rwarning: utype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
, t  r815u | e ) ; 
        |                    ~~~~~~~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 511T:*47 :a bnote: sexpanded from macro 'ABSL_INTERNAL_X'l
_nu  l511l | a b i l i t y _ u n kAnBoSwLn_ IaNrTgE)R;N
A      L| _               ^A
TTR/usr/local/clang/include/absl/base/nullability.hI:B289U:T34E:_ Cnote: Aexpanded from macro 'absl_nullability_unknown'P
TU  R289E | D#_dBeYf(itnhei sa)b)s)l _ n u l l a b i l i t y _ u n k n o w n   _ N u\l
l      _| u                                              ^~~~n
specified
      |                                  ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull fu/usr/local/clang/include/absl/container/internal/btree_container.hn:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABIn file included from Ss2/s2wedge_relations.ccL:_18I:
NIn file included from T../src/s2/s2wedge_relations.hE:R24N:
AIn file included from L../src/s2/s2point.h_:X25(:
iIn file included from n../src/s2/util/coding/coder.hs:e36r:
tIn file included from _../src/s2/base/casts.ho:r34_:
aIn file included from s/usr/local/clang/include/absl/log/log.hs:i209g:
nIn file included from ,/usr/local/clang/include/absl/log/internal/log_impl.h :i22n:
se/usr/local/clang/include/absl/log/internal/log_message.hr:t398_:o11r:_ awarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
ign  _398i | m p l ,  vcooinds*t  a&b,s l&_&n,u lflaalbslee, 
c      o| n  ^s
t&/usr/local/clang/include/absl/container/internal/btree_container.h :v509):;52
:       | note:           ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:  257509: | 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_uAlTlTaRbIlBeU T_EN_uClAlPaTbUlReE
D      _| B                      ^Y
(this)),                  In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h\:
24      :
| In file included from                                                    ^../src/s2/s2point.h
:25:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/util/coding/coder.h32::369:
:In file included from  ../src/s2/base/casts.hnote: :macro 'ABSL_INTERNAL_IF_false' defined here34
:
In file included from /usr/local/clang/include/absl/log/log.h   :32209 | :
#In file included from d/usr/local/clang/include/absl/log/internal/log_impl.he:f22i:
n/usr/local/clang/include/absl/log/internal/log_message.he: 400A:B17S:L _Iwarning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERN  A400L | _ I F _ fcaolnsset( ivfo_isda*t iasbfsile_dn,u l.l.a.b)l e_ _cVoAn_sAtR&G Sv_)_;

            | |         ^                ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/s2shapeutil_coding.cc257: | 28#:
dIn file included from e../src/s2/s2lax_polygon_shape.hf:i36n:
eIn file included from  ../src/s2/s2polygon.ha:b34s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from a/usr/local/clang/include/absl/container/btree_map.hb:l67e:
 /usr/local/clang/include/absl/container/internal/btree_container.h_:N531u:l3l:a bwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]e

      |                       ^
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25In file included from :
s2/s2shapeutil_coding.ccIn file included from :../src/s2/util/coding/coder.h28::
36In file included from :
../src/s2/s2lax_polygon_shape.hIn file included from :../src/s2/base/casts.h36::
34In file included from :
../src/s2/s2polygon.hIn file included from :/usr/local/clang/include/absl/log/log.h34::
209In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :/usr/local/clang/include/absl/log/internal/log_impl.h30
::
22In file included from :
/usr/local/clang/include/absl/container/btree_map.h  /usr/local/clang/include/absl/log/internal/log_message.h:498:67 | 425:
 :/usr/local/clang/include/absl/container/internal/btree_container.h 31: :534  : warning: 23 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:i
 nwarning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]   
v4251 |    ,534   | Li on gt  M v e2 s,s   ac go en sF t a t ca h la( rc *ot rnausbest)l; _
nc      oh| n                      ^na
url*/usr/local/clang/include/absl/container/internal/btree_container.hl : a496be:sxl9p_:rn tonote: emacro 'ABSL_INTERNAL_X' defined herenx
tn)u   l496{l |  #  d fe if il n ee  , A  B Si Ln _t I  Nl T iE\Rn
Ne      A)| L                                  ^ _
AXB(SF/usr/local/clang/include/absl/base/nullability.huL:n_241cA:,T22 T:CR aIlnote: Blexpanded from macro 'absl_nonnull'Ue
eT,E   _241KC | Q#OudaLelfD,i ;nMe
Q u      aab| ls,                              ^l _
KnVo/usr/local/clang/include/absl/base/nullability.hanl:nu241uel:,l 22 M_:VNa olnnote: unexpanded from macro 'absl_nonnull'eu,
l l.
  .      .241| ) |                      ^ #
 d e f i\n
e       | a        ^b
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char*/usr/local/clang/include/absl/container/internal/btree_container.h :a533b:s3l:_ nwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
null   533f | i l eA,B SiLn_tI NlTiEnReN,A
L      _| X                              ^(
in/usr/local/clang/include/absl/base/nullability.hs:e241r:t22_:o rnote: _expanded from macro 'absl_nonnull'a
cs)  s(i241Tg* | n ,#a dbisnelsf_einruntel_ loaarb_ibalssistilyg__nnu_niokmnnponlwu,nl )lc,o
 n      _| sN             ^to
 n&n,u/usr/local/clang/include/absl/base/nullability.h l:&l241&
:,      22 | :f                     ^ a
note: lexpanded from macro 'absl_nonnull's
e,
        241|  |   ^In file included from #
ds2/s2wedge_relations.cc/usr/local/clang/include/absl/container/internal/btree_container.he::f18509i:
:nIn file included from 52e../src/s2/s2wedge_relations.h: : a24note: bexpanded from macro 'ABSL_INTERNAL_X':
s
lIn file included from _../src/s2/s2point.hn  o:509n25 | n :
u lIn file included from  l../src/s2/util/coding/coder.h  _: N36 o :
n n In file included from u lA../src/s2/base/casts.hlB
:S      34L| _                     ^:
I
NIn file included from T/usr/local/clang/include/absl/log/log.hE:R209N:
AIn file included from L/usr/local/clang/include/absl/log/internal/log_impl.h_:A22In file included from T:
s2/s2shapeutil_contains_brute_force.ccT/usr/local/clang/include/absl/log/internal/log_message.h:R:18I427:
B:In file included from U31T../src/s2/s2shapeutil_contains_brute_force.h:E:_ 21Cwarning: :
Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from P
../src/s2/s2point.hT:U27R  :
E427In file included from D | ../src/s2/s2coder.h_ :B 23Y :
( In file included from t /usr/local/clang/include/absl/status/status.hh :i 67s :
) In file included from ) /usr/local/clang/include/absl/status/internal/status_internal.h, :  29  :
  In file included from   /usr/local/clang/include/absl/strings/cord.h  :  94  :
 cIn file included from  o/usr/local/clang/include/absl/strings/internal/cordz_info.h n: s31 t:
  /usr/local/clang/include/absl/synchronization/mutex.h c: h830 a: r36 *:    awarning:  btype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] s
 l _  \n830
o |       n |  n                                                   ^ u
 l /usr/local/clang/include/absl/container/internal/common.hl :b 32of:oa9li:l  (unote: r*macro 'ABSL_INTERNAL_IF_false' defined hereae
b_s   lm32_s | n#ogdne)nfu ilnAleB  fSAuBLnS_cLA)_T(ITTNR*T IEaRBbNUsATlL_E_nI_uFlC_lfOaabLliDs;lei(
tiy      f_| _u                              ^sna
ktn/usr/local/clang/include/absl/base/nullability.hios:wf241ni):e,d22
,:        | .note:                                    ^.expanded from macro 'absl_nonnull'
.
)/usr/local/clang/include/absl/base/nullability.h   :_241289_ | :V#34Ad:_e AfRnote: iGexpanded from macro 'absl_nullability_unknown'nS
_e_   
a289      b | | #s        ^dl
e_fnionnen uaIn file included from lbs2/s2shapeutil_coding.ccsl:l 28__:
nNIn file included from uo../src/s2/s2lax_polygon_shape.hln:ln36ua:
blIn file included from il../src/s2/s2polygon.hl
:i      34t| :
y                     ^In file included from _
../src/s2/mutable_s2shape_index.hu:n30k:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hw:n67 :
_/usr/local/clang/include/absl/container/internal/btree_container.hN:u533l:l3_:u nwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]p
eci  f533i | e d 
A      B| S                                 ^L
_INTERNAL_X(insert_or_assign, inserIn file included from ts2/s2shapeutil_contains_brute_force.ccIn file included from _:os2/s2wedge_relations.cc18r::
_18In file included from a:
../src/s2/s2shapeutil_contains_brute_force.hsIn file included from :s../src/s2/s2wedge_relations.h21i::
g24In file included from n:
../src/s2/s2point.h_In file included from :i../src/s2/s2point.h27m::
p25In file included from l:
../src/s2/s2coder.h,In file included from : ../src/s2/util/coding/coder.h23c::
o36In file included from n:
/usr/local/clang/include/absl/status/status.hsIn file included from :t../src/s2/base/casts.h67 ::
&34In file included from ,:
/usr/local/clang/include/absl/status/internal/status_internal.h In file included from :&/usr/local/clang/include/absl/log/log.h29&::
,209In file included from  :
/usr/local/clang/include/absl/strings/cord.hfIn file included from :a/usr/local/clang/include/absl/log/internal/log_impl.h94l::
s22In file included from e:
/usr/local/clang/include/absl/strings/internal/cordz_info.h,/usr/local/clang/include/absl/log/internal/log_message.h:
:31      436:
| :/usr/local/clang/include/absl/synchronization/mutex.h  ^36:
:831 /usr/local/clang/include/absl/container/internal/btree_container.h:warning: :46type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]511:
: 52:warning:    type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]436note: 
expanded from macro 'ABSL_INTERNAL_X' | 
    831  L | 511 o | g   M   e  s  ts y ap e gn eaAmDBeeS bLa_ubIsgNlTF:Ea:RttNyaApLle__(AicTdToeRnnItsBitUt TycE<_hTC>aA:Pr:Tt*UyR pEeaDb*_s BlaYb_(stnlho_innsnu)l)ul)al bl  i fl ii t ly _e u ,n k
 n       o w|                                     ^n 

        /usr/local/clang/include/absl/base/nullability.h|  :                                             ^ 241
 : 22/usr/local/clang/include/absl/base/nullability.h ::  289 note: :\expanded from macro 'absl_nonnull'34

:       |                                                      ^note: 241
expanded from macro 'absl_nullability_unknown' | 
/usr/local/clang/include/absl/container/internal/common.h#:  d31289e: | f9#i:dn eenote: fmacro 'ABSL_INTERNAL_IF_true' defined here i
nae    b31as | bl#sd_le_nfnoiunnleln aAubBilSlLli_ tI_yN_NTuEonRknNnnAoLuw_lnI lF__
Ntu      rlu| le                     ^_(u
infs_pseactisfiifeide,d 
.      .| .                                 ^)
 if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28In file included from :
s2/s2shapeutil_contains_brute_force.ccIn file included from :../src/s2/s2lax_polygon_shape.h18:36:
In file included from In file included from :
s2/s2wedge_relations.cc../src/s2/s2polygon.hIn file included from ::../src/s2/s2shapeutil_contains_brute_force.h1834::
:
21In file included from In file included from :
../src/s2/s2wedge_relations.h../src/s2/mutable_s2shape_index.hIn file included from ::../src/s2/s2point.h2430::
:
27In file included from In file included from :
../src/s2/s2point.h/usr/local/clang/include/absl/container/btree_map.hIn file included from ::../src/s2/s2coder.h2567::
:
23In file included from /usr/local/clang/include/absl/container/internal/btree_container.h:
../src/s2/util/coding/coder.h:In file included from :533/usr/local/clang/include/absl/status/status.h36:::
367In file included from ::
../src/s2/base/casts.h In file included from :warning: /usr/local/clang/include/absl/status/internal/status_internal.h34'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]::

29In file included from :
/usr/local/clang/include/absl/log/log.hIn file included from :/usr/local/clang/include/absl/strings/cord.h  209:533:
94 | In file included from :
 /usr/local/clang/include/absl/log/internal/log_impl.hIn file included from  :/usr/local/clang/include/absl/strings/internal/cordz_info.hA22:B:
31S/usr/local/clang/include/absl/log/internal/log_message.h:
L:/usr/local/clang/include/absl/synchronization/mutex.h_446:I:844N43:T:10E :Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] A
warning: Ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
X  (446  i | 844 n | s  e rL t o_ og rMT_*ea sassbissglna_,ng oiennnsQuueilerltt _olobyrj_Deacestsb,iu
gg      Fn| _a         ^it
mapl/usr/local/clang/include/absl/base/nullability.hl(:,c241 o:cn22sot: n snote: cthexpanded from macro 'absl_nonnull'a 
&r,   *241&  | &#a,d beffsaillnse_en ,ao
bn      sn| ul  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_l
nl  o 534nf | n iu ll l e  _, N 
o n       n | u l                                          ^ l 

        /usr/local/clang/include/absl/base/nullability.h|                       ^: 
 241t:r22u:e )note: ;expanded from macro 'absl_nonnull'

      |                     ~~~~~241
 | #In file included from d/usr/local/clang/include/absl/container/internal/btree_container.hs2/s2shapeutil_contains_brute_force.cce::f51118i::
n47In file included from e:../src/s2/s2shapeutil_contains_brute_force.h  :anote: 21expanded from macro 'ABSL_INTERNAL_X'b:

sIn file included from l../src/s2/s2point.h  _:511n27 | o:
 nIn file included from  n../src/s2/s2coder.hu : l23 l:
  In file included from  _/usr/local/clang/include/absl/status/status.h N: o67 n:
nAIn file included from uB/usr/local/clang/include/absl/status/internal/status_internal.hSl:Ll29_
:
I      In file included from N| /usr/local/clang/include/absl/strings/cord.hT                     ^:E
94R:
NIn file included from A/usr/local/clang/include/absl/strings/internal/cordz_info.hL:_31A:
T/usr/local/clang/include/absl/synchronization/mutex.hT:R845I:B45U:T Ewarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
APT  U845R | E D _ B Y ( tbhoiosl) )()a b s l                   In file included from  s2/s2wedge_relations.cc :\18
:
      In file included from | ../src/s2/s2wedge_relations.h                                              ^~~~:
24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _N/usr/local/clang/include/absl/container/internal/btree_container.ho:n536n:u24l:l 
      warning: | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]                     ^

  536 |                   falIn file included from ss2/s2wedge_relations.cce:)18;:

In file included from       ../src/s2/s2wedge_relations.h| :                       ^24
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2point.h::49625::
9In file included from :../src/s2/util/coding/coder.h :note: 36macro 'ABSL_INTERNAL_X' defined here:

In file included from ../src/s2/base/casts.h:34  :
496In file included from  | /usr/local/clang/include/absl/log/log.h#:d209e:
fIn file included from i/usr/local/clang/include/absl/log/internal/log_impl.hn:e22 :
A/usr/local/clang/include/absl/log/internal/log_message.hB:S456L:_38I:N Twarning: Etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
NAL  _456X | ( F uLnocg,M eCsaslalgeeeQ,u iKeQtulaylF,a tMaQlu(aclo,n sKtV aclhuaer,*  MaVbasllu_en,o n.n.u.l)l   f i l e\,
       i| n        ^t
 line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:34:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:22:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                    /usr/local/clang/include/absl/container/internal/btree_container.h : 535 : 3 :  cwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
st c  h535a | r *  AaBbSsLl__InNoTnEnRuNlAlL _fXa(iilnusreer_tm_sogr)_
a      s| s                                     ^i
gn/usr/local/clang/include/absl/base/nullability.h,: 241i:n22s:e rnote: texpanded from macro 'absl_nonnull'_
or  241_ | a#sdseifginn_ei mapbls,l _cnoonnsntu l&l,  _&N&o,n nturlule
,      
|                            ^| 
  ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:::9t:y pnote: emacro 'ABSL_INTERNAL_IF_false' defined here_
ide   n32t | i#tdye<fTi>n:e: tAyBpSeL:_:I*N TaEbRsNlA_Ln_oInFn_uflall smee(tihfo_ds)a(t)i)s;f
i      e| d                                            ^,
 .../usr/local/clang/include/absl/base/nullability.h): 241_:_22V:A _note: Aexpanded from macro 'absl_nonnull'R
GS_  _241
 |       #| d        ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shapeutil_contains_brute_force.ccs2/util/coding/coder.cc::1819:
:
In file included from In file included from ../src/s2/s2shapeutil_contains_brute_force.h../src/s2/util/coding/coder.h::2136:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/base/casts.h::2736:
:
In file included from In file included from ../src/s2/s2coder.h../src/s2/base/logging.h::2321:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.h::6737:
:
In file included from In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.h::2921In file included from :
:
s2/s2shapeutil_coding.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/cord.h28:::
50594In file included from ::
../src/s2/s2lax_polygon_shape.h1In file included from ::/usr/local/clang/include/absl/strings/internal/cordz_info.h36 ::
31warning: In file included from :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2polygon.h
/usr/local/clang/include/absl/synchronization/mutex.h::34850:
:  In file included from 16505../src/s2/mutable_s2shape_index.h: | : A30warning: B:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]SIn file included from L
/usr/local/clang/include/absl/container/btree_map.h_:L67O  :
G850/usr/local/clang/include/absl/container/internal/btree_container.h_ | I: N538T E:R 23N :A   Lc_warning: Copassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]Hn
sEtC  K 538T_ | O* P  a_ Ib MsPl _L n( Co nh ne cu kl _l L  To ,b  j <e )ct
tr,      u
| e      ^)| 
;               ^

      /usr/local/clang/include/absl/log/internal/check_op.h| :/usr/local/clang/include/absl/base/nullability.h                      ^488:
:24132:/usr/local/clang/include/absl/container/internal/btree_container.h:22: :496 note: :note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'9expanded from macro 'absl_nonnull'
:
 note:     macro 'ABSL_INTERNAL_X' defined here241488
 |  | # d  e 496if | in#nldei eanfeb scioln_nesn otAenBnxSpuLrl_ lIc o_nNNsotTn EcnRuhNalAlr
*L       _a| Xb(                     ^sFl
_unnucl,l aCballel enea,m eK#Q#uIamlIn file included from p,ls2/s2shapeutil_contains_brute_force.cc (: M 18 Q :
u In file included from  a../src/s2/s2shapeutil_contains_brute_force.hl , :  21K :
 V In file included from  a l ../src/s2/s2point.hu : e 27, :
\ 
In file included from M      ../src/s2/s2coder.hV| :a                               ^23l
:
uIn file included from e/usr/local/clang/include/absl/status/status.h,/usr/local/clang/include/absl/base/nullability.h ::.67.257:
.:In file included from )23 /usr/local/clang/include/absl/status/internal/status_internal.h: :  29note:  :
expanded from macro 'absl_nullable' In file included from 
\/usr/local/clang/include/absl/strings/cord.h
:        94257| :
 |         ^#In file included from 
d/usr/local/clang/include/absl/strings/internal/cordz_info.he:f31i:
n/usr/local/clang/include/absl/synchronization/mutex.he: 851a:b45s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab  l851e |   _ N u l l abboloel
       (| a                      ^b
sl::type_identIn file included from is2/util/coding/coder.cct:y19<:
TIn file included from >../src/s2/util/coding/coder.h:::36type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defin/usr/local/clang/include/absl/container/internal/btree_container.he: 537a:b3s:l _warning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
nnul  l537  | _ N oAnBnSuLl_lI
N      T| E                     ^R
NAL_X(insert_or_assign, inseIn file included from rs2/s2shapeutil_contains_brute_force.cct:_18o:
rIn file included from _../src/s2/s2shapeutil_contains_brute_force.ha:s21s:
iIn file included from g../src/s2/s2point.hn:_27i:
mIn file included from p../src/s2/s2coder.hl:,23 :
cIn file included from o/usr/local/clang/include/absl/status/status.hn:s67t:
 In file included from &/usr/local/clang/include/absl/status/internal/status_internal.h,: 29&:
&In file included from ,/usr/local/clang/include/absl/strings/cord.h :t94r:
uIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h,:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h  ^:
855:34/usr/local/clang/include/absl/container/internal/btree_container.h:: 509:warning: 52type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'ABSL_INTERNAL_X'  
855 |     e509x | p l i c i t   C o n dAiBtSiLo_nI(NcToEnRsNtA Lb_oAoTlT*R IaBbUsTlE__nCoAnPnTuUlRlE Dc_oBnYd()t;h
i      s| )                                 ^)
, /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b\s
l      _| n                                                   ^o
nn/usr/local/clang/include/absl/container/internal/common.hu:l31l: 9_:N onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull   
31       | | #                     ^d
efine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      In file included from | s2/s2shapeutil_contains_brute_force.cc        ^:
18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:In file included from 29s2/s2shapeutil_coding.cc:
:In file included from 28/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2lax_polygon_shape.h:
:In file included from 36/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2polygon.h:
:34/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 886../src/s2/mutable_s2shape_index.h::3130::
 In file included from /usr/local/clang/include/absl/container/btree_map.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:537  :8863 | :   warning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]x
plici  t537  | C o nAdBiStLi_oInN(TcEoRnNsAtL _TX*( ianbsselr_tn_oonrn_ualsls iogbnj,) insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 511                              ^:
47: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'ABSL_INTERNAL_X'241
:22:   note: 511expanded from macro 'absl_nonnull' | 
      241  |  # d e f iAnBeS La_bIsNlT_EnRoNnAnLu_lAlT T_RNIoBnUnTuEl_lC
A      P| T                     ^U
RED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Conditio/usr/local/clang/include/absl/container/internal/btree_container.hn:(541c:o24n:s twarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]T
* a  b541s | l _ n o n n u l l   o b j ) 
        |                                ^ 
fal/usr/local/clang/include/absl/base/nullability.hs:e241):;22
:       | note:                        ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/container/internal/btree_container.h  :241496 | :#9d:e fnote: imacro 'ABSL_INTERNAL_X' defined heren
e a  b496s | l#_dneofninnuel lA B_SNLo_nInNuTlElR
N      A| L                     ^_
X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Null/usr/local/clang/include/absl/container/internal/btree_container.ha:b540l:e3
:       | warning:                       ^
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   AIn file included from Bs2/s2shapeutil_contains_brute_force.ccS:L18_:
IIn file included from N../src/s2/s2shapeutil_contains_brute_force.hT:E21R:
NIn file included from A../src/s2/s2point.hL:_27X:
(In file included from i../src/s2/s2coder.hn:s23e:
rIn file included from t/usr/local/clang/include/absl/status/status.h_:o67r:
_In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hs:s29i:
gIn file included from n/usr/local/clang/include/absl/strings/cord.h,: 94i:
nIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.he:r31t:
_/usr/local/clang/include/absl/synchronization/mutex.ho:r923_:a48s:s iwarning: gtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n
_im  p923l | ,   & & ,   c o n s t   & ,   f a l s e , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 :c52o:n snote: texpanded from macro 'ABSL_INTERNAL_X' 
Con  d509i | t i o n *   a b s l _AnBuSlLl_aIbNlTeE Rb:
N)AIn file included from ;L../src/s2/base/casts.h_
A:T      T36| R:
I                                               ^In file included from B
../src/s2/base/logging.hU:/usr/local/clang/include/absl/base/nullability.hT21E::
_257CIn file included from A:/usr/local/clang/include/absl/log/check.hP23:T:37U :
RIn file included from note: E/usr/local/clang/include/absl/log/internal/check_impl.hexpanded from macro 'absl_nullable'D:
_21B:
  Y257/usr/local/clang/include/absl/log/internal/check_op.h( | t:#hd505ie:sf1)i:)n,e   warning:  atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b s
 l _ n/usr/local/clang/include/absl/log/internal/check_op.h u:l l489a b: l47e :  _  Nnote: u expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l l 
a b l e   
 489        | |                         ^  
\ 
        |                                                     ^c
on/usr/local/clang/include/absl/container/internal/common.hs:t32 :T91:&  note: vmacro 'ABSL_INTERNAL_IF_false' defined here1
, c   o32n | s#td eTf2i&n ev 2A,B ScLo_nIsNtIn file included from T s2/s2shapeutil_contains_brute_force.cccE:hRaNr18A*:
L _aIn file included from bIs../src/s2/s2shapeutil_contains_brute_force.hFl:__21fn:
aoIn file included from lns../src/s2/s2point.hneu:(l27il:
 feIn file included from x_../src/s2/s2coder.hps:rat23etx:
its)In file included from f /usr/local/clang/include/absl/status/status.hi{: e 67d :
, In file included from   \/usr/local/clang/include/absl/status/internal/status_internal.h.
:.      29.| :
)                                              ^In file included from  
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h_::_94241V:
A:In file included from _22/usr/local/clang/include/absl/strings/internal/cordz_info.hA::R 31G:
note: S/usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull'_:
_948
:        10241| : |         ^ #
warning: dtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
fine   948a | bIn file included from  ss2/s2shapeutil_coding.cc l:_bn28oo:
onIn file included from nl../src/s2/s2lax_polygon_shape.hu l:(l36* :
a_In file included from bN../src/s2/s2polygon.hso:ln34n_unlul:
l
In file included from l      ../src/s2/mutable_s2shape_index.ha| :b                     ^l30e
:
 In file included from e/usr/local/clang/include/absl/container/btree_map.hv:a67l:
_/usr/local/clang/include/absl/container/internal/btree_container.h):(540c:o3n:s twarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]C
ondi  t540i | o n *A BaSbLs_lI_NnToEnRnNuAlLl_)X (=i nnsuelrltp_torr;_
a      s| s         ^i
gn/usr/local/clang/include/absl/base/nullability.h,: 257i:n23s:e rnote: texpanded from macro 'absl_nullable'_
or  _257a | s#sdiegfni_niem palb,s l&_&n,u lcloanbslte  &_,N uflallasbel,e

            | |   ^                      ^

/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: In file included from note: s2/s2shapeutil_contains_brute_force.ccexpanded from macro 'ABSL_INTERNAL_X'In file included from :
s2/util/coding/coder.cc18::
19In file included from   :
../src/s2/s2shapeutil_contains_brute_force.h511In file included from : | ../src/s2/util/coding/coder.h21 ::
 36In file included from  :
../src/s2/s2point.h In file included from : ../src/s2/base/casts.h27 ::
 36 In file included from :
 ../src/s2/s2coder.hIn file included from  :../src/s2/base/logging.hA23B::
S21In file included from L:
_/usr/local/clang/include/absl/status/status.hIn file included from I:/usr/local/clang/include/absl/log/check.hN67:T:
37EIn file included from :
R/usr/local/clang/include/absl/status/internal/status_internal.hNIn file included from :A/usr/local/clang/include/absl/log/internal/check_impl.h29L::
_21AIn file included from :
T/usr/local/clang/include/absl/strings/cord.hT/usr/local/clang/include/absl/log/internal/check_op.h:R:94I505:
B:UIn file included from 1T/usr/local/clang/include/absl/strings/internal/cordz_info.hE::_ C31warning: A:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]P/usr/local/clang/include/absl/synchronization/mutex.h
T:U948/usr/local/clang/include/absl/log/internal/check_op.hR:E:48D497:_: B32warning: Y:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]( 
tnote: hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'i
  s948) | )  ) 497  b |  o o  il n  (l *ianb se   l c_ on nusltlea xbp rl  e  ce vo nas lt  _ )c h( ca or\*n s
atb       Cs| lo                                                   ^_nn
udli/usr/local/clang/include/absl/container/internal/common.htli:ao32nb*l :ea 9nb:salm e_note: n#macro 'ABSL_INTERNAL_IF_false' defined here#o
nInm   pul32(l | l #) d  e= f  in n u e l l pA tBr S ; L 
_ I       N |  T\                                               ^E

R      N| /usr/local/clang/include/absl/base/nullability.h                               ^A:L
241_:I22/usr/local/clang/include/absl/base/nullability.hF::_ 257f:note: a23lexpanded from macro 'absl_nonnull':s
 e  note: (expanded from macro 'absl_nullable'241i
 | f#_  ds257ea | fti#niedse ffaiibesndel,_ n oa.n.n.b)usll _l_ _n_VNuAloln_aAbnluelRl G_
SN      _u| _                     ^l
l
a      b| l        ^e

      |                       ^
In file included from s2/util/coding/coder.ccIn file included from :s2/s2shapeutil_contains_brute_force.cc19::
18In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2shapeutil_contains_brute_force.h36::
21In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2point.h36::
27In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/s2coder.h21::
23In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/status/status.hIn file included from 37:s2/s2shapeutil_coding.cc:
67:In file included from :
28/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :
:/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from 21:../src/s2/s2lax_polygon_shape.h:
29:/usr/local/clang/include/absl/log/internal/check_op.h:
36:In file included from :
505/usr/local/clang/include/absl/strings/cord.hIn file included from ::../src/s2/s2polygon.h194:::
34 In file included from :
warning: /usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:../src/s2/mutable_s2shape_index.h
31::
/usr/local/clang/include/absl/log/internal/check_op.h30/usr/local/clang/include/absl/synchronization/mutex.h::
:498In file included from 951:/usr/local/clang/include/absl/container/btree_map.h:35:9:67: :
 note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]543
:23  :498    | 951warning:   | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]  
   v  o 543i  | id n* t  avb s1 ,l _  in unl lt  av 2b l,  e c  o anrsgt _  c  h=t anrurul*lep)t; r
a;b      s
l|       _                      ^n| o
n        ^n/usr/local/clang/include/absl/container/internal/btree_container.h
u:l496l/usr/local/clang/include/absl/base/nullability.h: :e9x257:p: r23note: t:macro 'ABSL_INTERNAL_X' defined heree x
note: texpanded from macro 'absl_nullable')
   496  { |  257#  | d# ed e f fi inn e  e   A a B S L _ I\N
T      E| R                                  ^N
AL/usr/local/clang/include/absl/base/nullability.h_:X241(:F22u:n cnote: ,expanded from macro 'absl_nonnull' 
Ca  l241l | e#ed,e fKiQnuea la,b sMlQ_unaoln,n uKlVla l_uNeo,n nMuVlall
u      e| ,                     ^ 
...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:b544:3s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
llabl  e544  | _ N uAlBlSaLb_lIeN
T      E| R                      ^N
AL_X(insert_or_assign, inserIn file included from ts2/s2shapeutil_contains_brute_force.cc_:o18r:
_In file included from a../src/s2/s2shapeutil_contains_brute_force.hIn file included from s:s2/s2shapeutil_build_polygon_boundaries.ccs21:i:
25gIn file included from :
n../src/s2/s2point.hIn file included from _:../src/s2/mutable_s2shape_index.hi27:m:
p33lIn file included from ,:
 ../src/s2/s2coder.hIn file included from &:../src/s2/base/commandlineflags.h&23:,:
21 In file included from :
c/usr/local/clang/include/absl/status/status.ho/usr/local/clang/include/absl/flags/flag.hn::s67t110 :
&:In file included from ,29 /usr/local/clang/include/absl/status/internal/status_internal.ht::r 29u:
ewarning: In file included from ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h

:      94| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from   
/usr/local/clang/include/absl/strings/internal/cordz_info.h110:   | 31545v:
o | /usr/local/clang/include/absl/synchronization/mutex.hi d:  954 S: e52 t: F  lwarning:  atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] g
 ( a b s   l954: : |  F  l  sfatagal<tTsi>c*e  )ab;ob
os      ll|  _                  ~~~~~~Cn
aolnln/usr/local/clang/include/absl/container/internal/btree_container.hVu:ol509li :df47Pl:ta grnote: ,Fexpanded from macro 'ABSL_INTERNAL_X' uc
nocnt  is509ot |  n T( & c  ov n) s  t{  
 C       oA| Bn                            ^SdL
i_tIi/usr/local/clang/include/absl/base/nullability.hNoT:nE241*R: N22aA:bL s_note: lAexpanded from macro 'absl_nonnull'_T
nTo  Rn241In | B#uUdlTelfEi _ncCeA) P;aT
bUs      Rl| E_                                                   ^Dn_
oBnYn/usr/local/clang/include/absl/base/nullability.hu(:ltl241h i:_sN22)o):n,n  unote:  lexpanded from macro 'absl_nonnull' l 

        |                         ^ 241
  |  # d e f i n e   a b s l _ n o\n
n      u| l                                              ^~~~l
 _Nonnu/usr/local/clang/include/absl/container/internal/btree_container.hl:l544
:      3| :                     ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2shapeutil_build_polygon_boundaries.cc  :51125 | :
 In file included from  ../src/s2/mutable_s2shape_index.h : 33 :
 In file included from  ../src/s2/base/commandlineflags.h :In file included from  21 s2/s2shapeutil_contains_brute_force.ccA:
:B18/usr/local/clang/include/absl/flags/flag.hSL:
:_In file included from 118I../src/s2/s2shapeutil_contains_brute_force.h:N:T2921E:R:
 NIn file included from warning: A../src/s2/s2point.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L:
_27A:
TIn file included from   T../src/s2/s2coder.hR:118I23B | :
UvIn file included from To/usr/local/clang/include/absl/status/status.hEi:_d67C :
ASIn file included from Pe/usr/local/clang/include/absl/status/internal/status_internal.hTt:UF29Rl:
EaIn file included from Dg/usr/local/clang/include/absl/strings/cord.h_(:Ba94Yb:
s(lIn file included from t:/usr/local/clang/include/absl/strings/internal/cordz_info.hh::iF31sl:
)a/usr/local/clang/include/absl/synchronization/mutex.h)g:)< 956T :> 52* :   a warning: b type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s 
l _ n o   n 956n  | u  l  l s  tf al ta ig c,    bc\oo
on      ls|  t                                                   ^C 
aVs&/usr/local/clang/include/absl/container/internal/common.ht :Av32n):d 9C{:a
 l      note: l| macro 'ABSL_INTERNAL_IF_false' defined hereF                            ^
u
n   c/usr/local/clang/include/absl/base/nullability.h32t: | i#241od:ne22(f:ci onnote: neexpanded from macro 'absl_nonnull's 
tA   BC241So | Ln#_ddIieNtfTiiEonRneN* A aLab_bsIslFl___nfnoaonlnnsnueul(llil f __cNs)oa;nt
ni      us| lf                                                   ^li

e      d/usr/local/clang/include/absl/base/nullability.h| ,                     ^: 
241.:.22.:)  note: _expanded from macro 'absl_nonnull'_
VA  _241A | R#GdSe_f_i
n      e|          ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CaIn file included from ss2/s2shapeutil_coding.cct:A28n:
dIn file included from C../src/s2/s2lax_polygon_shape.ha:l36l:
MIn file included from e../src/s2/s2polygon.ht:h34o:
dIn file included from (../src/s2/mutable_s2shape_index.hc:o30n:
sIn file included from t/usr/local/clang/include/absl/container/btree_map.h :C67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hd:i547t:i23o:n *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bs  l547_ | n o n n u l l   c ) ; 
        |                                                   ^ 
  /usr/local/clang/include/absl/base/nullability.h :t241r:u22e:) ;note: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | /usr/local/clang/include/absl/container/internal/btree_container.h#:d496e:f9i:n enote:  macro 'ABSL_INTERNAL_X' defined herea
bsl  _496n | o#ndneufliln e_ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_X(Func, Callee, In file included from Ks2/s2shapeutil_contains_brute_force.ccQ:u18a:
lIn file included from ,../src/s2/s2shapeutil_contains_brute_force.h :M21Q:
uIn file included from a../src/s2/s2point.hl:,27 :
KIn file included from V../src/s2/s2coder.ha:l23u:
eIn file included from ,/usr/local/clang/include/absl/status/status.h :M67V:
aIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.hu:e29,:
 In file included from ./usr/local/clang/include/absl/strings/cord.h.:.94):
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
\/usr/local/clang/include/absl/synchronization/mutex.h
:      961| :        ^34
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      /usr/local/clang/include/absl/container/internal/btree_container.h| :                     ^546
:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_In file included from as2/s2shapeutil_contains_brute_force.ccs:s18i:
gIn file included from n../src/s2/s2shapeutil_contains_brute_force.h,: 21i:
nIn file included from s../src/s2/s2point.he:r27t:
_In file included from o../src/s2/s2coder.hr:_23a:
sIn file included from s/usr/local/clang/include/absl/status/status.hi:g67n:
_In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
,In file included from  /usr/local/clang/include/absl/strings/cord.h&:&94,:
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31s:
t/usr/local/clang/include/absl/synchronization/mutex.h :&975,: 31t:r uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],

      |   ^  
975 |  /usr/local/clang/include/absl/container/internal/btree_container.h :i509n:l52i:n enote:  expanded from macro 'ABSL_INTERNAL_X'v
oid   509R | e a d C a l l b a c kA(BTS*L _aIbNsTlE_RnNoAnLn_uAlTlT RcIaBlUlTbEa_cCkA)P TcUoRnEsDt_ B{Y
(      t| h                              ^i
s)/usr/local/clang/include/absl/base/nullability.h):,241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _\n
o      n| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.h :_31N:o9n:n unote: lmacro 'ABSL_INTERNAL_IF_true' defined herel

      |                         ^31
 | #define ABSL_INTERNAL_IF_truIn file included from es2/s2shapeutil_contains_brute_force.cc(:i18f:
_In file included from s../src/s2/s2shapeutil_contains_brute_force.ha:t21i:
sIn file included from f../src/s2/s2point.hi:e27d:
,In file included from  ../src/s2/s2coder.h.:.23.:
)In file included from  /usr/local/clang/include/absl/status/status.hi:f67_:
sIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.ht:i29s:
fIn file included from i/usr/local/clang/include/absl/strings/cord.he:d94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h        ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 979s2/s2shapeutil_coding.cc | : 28 :
sIn file included from t../src/s2/s2lax_polygon_shape.ha:t36i:
cIn file included from  ../src/s2/s2polygon.hb:o34o:
lIn file included from  ../src/s2/mutable_s2shape_index.hA:l30w:
aIn file included from y/usr/local/clang/include/absl/container/btree_map.hs:T67r:
u/usr/local/clang/include/absl/container/internal/btree_container.he:(546c:o3n:s twarning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]C
ondit  i546o | n *  AaBbSsLl__InNuTlElRaNbAlLe_)X ({i nrseetrutr_no rt_rauses;i g}n
,       | i                                          ^n
se/usr/local/clang/include/absl/base/nullability.hr:t257_:o23r:_ anote: sexpanded from macro 'absl_nullable's
ig  n257_ | i#mdpelf,i n&e& ,a bcsoln_sntu l&l,a btlreu e_,N
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a
bl  e547
 |        |                        ^ 
               true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/util/coding/coder.cc::54619::
3In file included from :../src/s2/util/coding/coder.h :36warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/base/casts.h
:36/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/base/logging.h::5221::
 In file included from /usr/local/clang/include/absl/log/check.hnote: :expanded from macro 'ABSL_INTERNAL_X'37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21511:
 |  /usr/local/clang/include/absl/log/internal/check_op.h : 506 : 1 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
ABSL  _506I | NATBESRLN_ALLO_GA_TITNRTIEBRUNTAEL__CCAHPETCUKR_EODP__BIYM(PtLh(iCsh)e)c)k _ G E ,   > = ) 
        |  ^ 
   /usr/local/clang/include/absl/log/internal/check_op.h : 488 : 32 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'\

      |                                                    ^  
488 | /usr/local/clang/include/absl/container/internal/common.h : 31i:n9l:i nnote: emacro 'ABSL_INTERNAL_IF_true' defined here 
con   s31t | e#xdperf icnoen sAtB ScLh_aIrN*T EaRbNsAlL__nIuFl_ltarbulee( infa_msea#t#iIsmfpile(d ,   . . . )   i f _ s a t i s f i e d\

            | |         ^                               ^

/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257In file included from  | s2/s2shapeutil_coding.cc#:d28e:
fIn file included from i../src/s2/s2lax_polygon_shape.hn:e36 :
aIn file included from b../src/s2/s2polygon.hs:l34_:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30a:
bIn file included from l/usr/local/clang/include/absl/container/btree_map.he: 67_:
N/usr/local/clang/include/absl/container/internal/btree_container.hu:l546l:a3b:l ewarning: 
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]      
|                       ^
  546 |   ABSL_INIn file included from Ts2/util/coding/coder.ccE:R19N:
AIn file included from L../src/s2/util/coding/coder.h_:X36(:
iIn file included from n../src/s2/base/casts.hs:e36r:
tIn file included from _../src/s2/base/logging.ho:r21_:
aIn file included from s/usr/local/clang/include/absl/log/check.hs:i37g:
nIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :i21n:
s/usr/local/clang/include/absl/log/internal/check_op.he:r506t:_1o:r _warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
si/usr/local/clang/include/absl/log/internal/check_op.hg:n489_:i47m:p lnote: ,expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
&&,   489c | o n s t   & ,c otnrsute ,T
1      &|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~v
1,   547c | o n s t   T 2 &   v 2 ,   c o n s t  tcrhuaer)*; 
a      b| s                  ~~~~~l
_no/usr/local/clang/include/absl/container/internal/btree_container.hn:n511u:l47l:  enote: xexpanded from macro 'ABSL_INTERNAL_X'p
rte  x511t |    )   {          A\B
S      L| _                                              ^I
NT/usr/local/clang/include/absl/base/nullability.hE:R241N:A22L:_ Anote: Texpanded from macro 'absl_nonnull'T
RI  B241U | T#Ed_eCfAiPnTeU RaEbDs_lB_Yn(otnhniusl)l) )_ N o n n u l l 
        |                       ^ 
            \
      |                                               ^~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/util/coding/coder.cc::55019::
24In file included from :../src/s2/util/coding/coder.h :36warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/base/casts.h:36:
  In file included from 550../src/s2/base/logging.h | : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 506 : 1 :f awarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
e)/usr/local/clang/include/absl/log/internal/check_op.h;:
497      :| 32                       ^:
 note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL':
496:9:   note: 497macro 'ABSL_INTERNAL_X' defined here | 
  i  n496l | i#ndee fcionnes tAeBxSpLr_ IcNoTnEsRtN AcLh_aXr(*F uanbcs,l _Cnaulllleaeb,l eK Qnuaamle,# #MIQmupall(,   K V a l u e ,   M V a l u e ,   . .\.
)       |                                 ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
257      :| 23        ^:
 note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exp/usr/local/clang/include/absl/container/internal/btree_container.hr:t549e:x3t:)  warning: {passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
       549  |      A B S L _ I N T\E
R      N| A                                  ^L
_X/usr/local/clang/include/absl/base/nullability.h(:i241n:s22e:r tnote: _expanded from macro 'absl_nonnull'o
r_  a241s | s#idgenf,i nien saebrstl__onro_nansuslilg n__Niompl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_/usr/local/clang/include/absl/container/internal/btree_container.hn:o551n:n3u:l lwarning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
Nonn  u551l | l 
       A| B                     ^S
L_INTERNAL_X(insert_or_assigIn file included from ns2/s2shapeutil_contains_brute_force.cc,: 18i:
nIn file included from s../src/s2/s2shapeutil_contains_brute_force.he:r21t:
_In file included from o../src/s2/s2point.hr:_27a:
sIn file included from s../src/s2/s2coder.hi:g23n:
_In file included from i/usr/local/clang/include/absl/status/status.hm:p67l:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h&:&29,:
 In file included from &/usr/local/clang/include/absl/strings/cord.h&:,94 :
fIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.hl:s31e:
,/usr/local/clang/include/absl/synchronization/mutex.h :t1050r:u31e:) ;warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|   ^
 /usr/local/clang/include/absl/container/internal/btree_container.h1050: | 509 : 52b:o onote: lexpanded from macro 'ABSL_INTERNAL_X' 
Wai  t509W | i t h T i m e o u t (AMBuStLe_xI*N TaEbRsNlA_Ln_oAnTnTuRlIlB UmTuE,_ CaAbPsTlU:R:EDDu_rBaYt(itohni st)i)m,e o u t )   { 
        |                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    \241
 |       #| d                                                   ^e
fi/usr/local/clang/include/absl/container/internal/common.hn:e32 :a9b:s lnote: _macro 'ABSL_INTERNAL_IF_false' defined heren
on   n32u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNAL_IF_false(if_satisfied, ..In file included from .s2/s2shapeutil_contains_brute_force.cc): 18_:
_In file included from V../src/s2/s2shapeutil_contains_brute_force.hA:_21A:
RIn file included from G../src/s2/s2point.hS:_27_:

In file included from       ../src/s2/s2coder.h| :        ^23
:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94In file included from :
s2/s2shapeutil_coding.ccIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h28::
31In file included from :
../src/s2/s2lax_polygon_shape.h:/usr/local/clang/include/absl/synchronization/mutex.h36::
1069In file included from :../src/s2/s2polygon.h32::34 :
In file included from warning: ../src/s2/mutable_s2shape_index.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
 /usr/local/clang/include/absl/container/internal/btree_container.h1069: | 551 : 3b:o owarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
Wai  t551W | i t hADBeSaLd_lIiNnTeE(RMNuAtLe_xX*( ianbsselr_tn_oonrn_ualsls imgun,,  aibnssle:r:tT_iomre_ adsesaidglni_niem)p l{,
       &| &                               ^,
 &/usr/local/clang/include/absl/base/nullability.h&:,241 :f22a:l snote: eexpanded from macro 'absl_nonnull',
 t  r241u | e#)d;e
f      i| n  ^e
 a/usr/local/clang/include/absl/container/internal/btree_container.hb:s511l:_52n:o nnote: nexpanded from macro 'ABSL_INTERNAL_X'u
ll   _511N | o n n u l l 
        |                       ^ 
ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(tIn file included from hs2/s2shapeutil_contains_brute_force.cci:s18):
)In file included from )../src/s2/s2shapeutil_contains_brute_force.h : 21 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from \/usr/local/clang/include/absl/strings/cord.h
:      94| :
                                                   ^In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31/usr/local/clang/include/absl/container/internal/common.h:
:31/usr/local/clang/include/absl/synchronization/mutex.h::91088:: 35:note:  macro 'ABSL_INTERNAL_IF_true' defined herewarning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   31 |  #1088d | e f ivnoei dA BESnLa_bIlNeTDEeRbNuAgLL_oIgF(_ctornuset( icfh_asra*t iasbfsile_dn,u l.l.a.b)l ei fn_asmaet)i;s
f      i| e                                  ^d

      | /usr/local/clang/include/absl/base/nullability.h        ^:
257:23: note: expanded from macro 'absl_nullable'
  257 | #defIn file included from is2/s2shapeutil_coding.ccn:e28 :
aIn file included from b../src/s2/s2lax_polygon_shape.hs:l36_:
nIn file included from u../src/s2/s2polygon.hl:l34a:
bIn file included from l../src/s2/mutable_s2shape_index.he: 30_:
NIn file included from u/usr/local/clang/include/absl/container/btree_map.hl:l67a:
b/usr/local/clang/include/absl/container/internal/btree_container.hl:e551
:      3| :                      ^ 
warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INIn file included from Ts2/s2shapeutil_contains_brute_force.ccE:R18N:
AIn file included from L../src/s2/s2shapeutil_contains_brute_force.h_:X21(:
iIn file included from n../src/s2/s2point.hs:e27r:
tIn file included from _../src/s2/s2coder.ho:r23_:
aIn file included from s/usr/local/clang/include/absl/status/status.hs:i67g:
nIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :i29nn:
nsIn file included from ue/usr/local/clang/include/absl/strings/cord.hlr:lt94
_:
      oIn file included from r| _/usr/local/clang/include/absl/strings/internal/cordz_info.h                     ^a:
s31s:
i/usr/local/clang/include/absl/synchronization/mutex.hg:n1091_:i26m:p lwarning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
&&,  1091& | & ,  bfoaolls eW,a ittrCuoem)m;o
n      (| M  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
tex/usr/local/clang/include/absl/container/internal/btree_container.h*: 511a:b47s:l _note: nexpanded from macro 'ABSL_INTERNAL_X'o
nnul  l511  | m u t e x , 
        |                           ^ 
AB/usr/local/clang/include/absl/base/nullability.hS:L241_:I22N:T Enote: Rexpanded from macro 'absl_nonnull'N
AL  _241A | T#TdReIfBiUnTeE _aCbAsPlT_UnRoEnDn_uBlYl( t_hNiosn)n)u)l l 
        |                       ^ 
                  \
      |                                               ^~~~
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nonnull':
552:79  :241  | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
efin  e552  | a b sAlB_SnLo_nInNuTlElR N_ANLo_nXn(uilnls
e      r| t                     ^_
or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBIn file included from Us2/s2shapeutil_contains_brute_force.ccT:E18_:
CIn file included from A../src/s2/s2shapeutil_contains_brute_force.hP:T21U:
RIn file included from E../src/s2/s2point.hD:_27B:
YIn file included from (../src/s2/s2coder.ht:h23i:
sIn file included from )/usr/local/clang/include/absl/status/status.h):)67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
  /usr/local/clang/include/absl/synchronization/mutex.h : 1109 : 34 :  \warning: 
      type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 
                                                   ^
/usr/local/clang/include/absl/container/internal/common.h :110931 | : 9 :e xnote: pmacro 'ABSL_INTERNAL_IF_true' defined herel
ic   i31t |  #MduetfeixnLeo cAkBMSaLy_bIeN(TMEuRtNeAxL*_ IaFb_stlr_uneu(lilfa_bslaet imsuf)i
e      d| ,                                 ^ 
.../usr/local/clang/include/absl/base/nullability.h): 257i:f23_:s anote: texpanded from macro 'absl_nullable'i
sfi  e257d | 
#      d| e        ^f
ine absl_nullabIn file included from ls2/s2shapeutil_coding.cce: 28_:
NIn file included from u../src/s2/s2lax_polygon_shape.hl:l36a:
bIn file included from l../src/s2/s2polygon.he:
34      :
| In file included from                       ^../src/s2/mutable_s2shape_index.h
:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insIn file included from es2/s2shapeutil_contains_brute_force.ccr:t18_:
oIn file included from r../src/s2/s2shapeutil_contains_brute_force.h_:a21s:
sIn file included from i../src/s2/s2point.hg:n27,:
 In file included from i../src/s2/s2coder.hn:s23e:
rIn file included from t/usr/local/clang/include/absl/status/status.h_:o67r:
_In file included from a/usr/local/clang/include/absl/status/internal/status_internal.hs:s29i:
gIn file included from n/usr/local/clang/include/absl/strings/cord.h_:i94m:
pIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h,: 31&:
&/usr/local/clang/include/absl/synchronization/mutex.h,: 1117&:&34,:  twarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
e, t r1117u | e ) ;e
x      p| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
cit/usr/local/clang/include/absl/container/internal/btree_container.h :M511u:t47e:x Lnote: oexpanded from macro 'ABSL_INTERNAL_X'c
kMa  y511b | e ( M u t e x *   a bAsBlS_Ln_uIlNlTaEbRlNeA Lm_uA,T TcRoInBsUtT EC_oCnAdPiTtUiRoEnD&_ BcYo(ntdh)i
s      )| )                                 ^)
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a\b
s      l| _                                              ^~~~n
ullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define AIn file included from Bs2/s2shapeutil_contains_brute_force.ccS:L18_:
IIn file included from N../src/s2/s2shapeutil_contains_brute_force.hT:E21R:
NIn file included from A../src/s2/s2point.hL:_27I:
FIn file included from _../src/s2/s2coder.hf:a23l:
sIn file included from e/usr/local/clang/include/absl/status/status.h(:i67f:
_In file included from s/usr/local/clang/include/absl/status/internal/status_internal.ha:t29i:
sIn file included from f/usr/local/clang/include/absl/strings/cord.hi:e94d:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h.:.31.:
)/usr/local/clang/include/absl/synchronization/mutex.h :_1146_:V7A:_ Awarning: R'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]G
S__
       1146|  |         ^ 
     this)In file included from )s2/s2shapeutil_coding.cc :A28B:
SIn file included from L../src/s2/s2lax_polygon_shape.h_:E36X:
CIn file included from L../src/s2/s2polygon.hU:S34I:
VIn file included from E../src/s2/mutable_s2shape_index.h_:L30O:
CIn file included from K/usr/local/clang/include/absl/container/btree_map.h_:F67U:
N/usr/local/clang/include/absl/container/internal/btree_container.hC:T555I:O3N:( mwarning: upassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])

      |       ^~~~  
555 |   ABSL_INTERNAL_X(insert_or_assign, i/usr/local/clang/include/absl/synchronization/mutex.hnIn file included from :ss2/util/coding/coder.cce1153:r:t1939_:
:oIn file included from  r../src/s2/util/coding/coder.hwarning: _:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a36
s:
sIn file included from i../src/s2/base/casts.hg :n1153_36h | :
 iIn file included from  n../src/s2/base/logging.hte_:ix21mppl:
ilIn file included from ,c/usr/local/clang/include/absl/log/check.hi t: c37oRne:
slIn file included from te/usr/local/clang/include/absl/log/internal/check_impl.h a:&s21a,b:
l
e/usr/local/clang/include/absl/log/internal/check_op.hM      u:| t  ^e507
x:L1o/usr/local/clang/include/absl/container/internal/btree_container.hc:k:( 511M:uwarning: 52ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e:
x *note:    expanded from macro 'ABSL_INTERNAL_X'a507
b | sAl  _B511Sn | Lo n_nL uOlG l_  ImNuT)E 
R N       A| L _                                      ^C H
 EAC/usr/local/clang/include/absl/base/nullability.hBK:_SO241PL:__II22NM:TP ELnote: R(expanded from macro 'absl_nonnull'CNh
AeL  c_k241_AG | T#TT,dRe I>fBi)Un
eT       Ea| _^bCs
AlP_TnUo/usr/local/clang/include/absl/log/internal/check_op.hnRn:EuDl488_l: B_32NY:(o ntnote: nhexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'uil
sl)
)        )| 488                      ^  | 
    i n l i n e   c o n s t e x p r   c o n s\t
       c| h                                                   ^a
r*/usr/local/clang/include/absl/container/internal/common.h :In file included from a32bs2/s2shapeutil_contains_brute_force.cc:s:l9_18:n:
 uIn file included from lnote: ../src/s2/s2shapeutil_contains_brute_force.hlmacro 'ABSL_INTERNAL_IF_false' defined herea:
b21l:
   eIn file included from  32../src/s2/s2point.hn | :a#m27ed#:
#eIn file included from Ifm../src/s2/s2coder.hpil:n(23e :
  In file included from A /usr/local/clang/include/absl/status/status.h B : S 67L :
_ I In file included from N /usr/local/clang/include/absl/status/internal/status_internal.hT :E R29 N :
 A L In file included from  _/usr/local/clang/include/absl/strings/cord.h\I
:F      94_| :
f                               ^aIn file included from 
l/usr/local/clang/include/absl/strings/internal/cordz_info.hs:e31/usr/local/clang/include/absl/base/nullability.h(:
:i257/usr/local/clang/include/absl/synchronization/mutex.hf::_231158s::a 53t:note: i expanded from macro 'absl_nullable's
fwarning: i  e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]d257
, |  #.d. e.f1158)i |  n _e _  Va Ab _s AlMR_uGtnSeu_lx_&l
 a      mb| ul        ^ e
 A_BNSuLl_lIaNbTlEeR
N      A| L                      ^_
ATTRIBUTE_CAPTIn file included from Us2/util/coding/coder.ccR:E19D:
_In file included from B../src/s2/util/coding/coder.hY:(36t:
hIn file included from i../src/s2/base/casts.hs:)36,:

In file included from       ../src/s2/base/logging.h| :                                                    ^~~~21
:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const/usr/local/clang/include/absl/synchronization/mutex.h :T11661:&39 :v 1warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons t1166  | T 2 &e xvp2l,i cciotn sRte lcehaasra*b laebMsult_enxoLnoncukl(lM uetxepxr*t eaxbts)l In file included from _{s2/s2shapeutil_coding.cc n: o28n n:
 u In file included from \../src/s2/s2lax_polygon_shape.h
:      36| :
                                              ^In file included from 
../src/s2/s2polygon.h:34/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/mutable_s2shape_index.h::2230::
 In file included from /usr/local/clang/include/absl/container/btree_map.hnote: :expanded from macro 'absl_nonnull'67
:
/usr/local/clang/include/absl/container/internal/btree_container.h  :241558 | :#3d:e fwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
e ab  s558l | _ n oAnBnSuLl_lI N_TNEoRnNnAuLl_lX
(      i| n                     ^s
ert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BYIn file included from (s2/util/coding/coder.cct:h19i:
sIn file included from )../src/s2/util/coding/coder.h):,36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h : 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 507\:
1      :|                                                     ^warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/common.h:/usr/local/clang/include/absl/log/internal/check_op.h32::4979::32 : note: note: macro 'ABSL_INTERNAL_IF_false' defined hereexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

   32 |   #497d | e f iinnel iAnBeS Lc_oInNsTtEeRxNpArL _cIoFn_sfta lcshea(ri*f _asbastli_snfuilelda,b l.e. .n)a m_e_#V#AI_mApRlG(S _ _ 
        |          ^ 
     In file included from  s2/s2shapeutil_coding.cc : 28 :
 In file included from  ../src/s2/s2lax_polygon_shape.h :\36
:
      In file included from | ../src/s2/s2polygon.h                               ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.h::30257:
:In file included from 23/usr/local/clang/include/absl/container/btree_map.h:: 67:
note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'absl_nullable':
558:3  :257  | warning: #passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
efi  n558e |   a bAsBlS_Ln_uIlNlTaEbRlNeA L__NXu(lilnasbelret
_      o| r                      ^_
assign, iIn file included from ns2/util/coding/coder.ccs:e19r:
tIn file included from _../src/s2/util/coding/coder.ho:r36_:
aIn file included from s../src/s2/base/casts.hs:i36g:
nIn file included from _../src/s2/base/logging.hh:i21n:
tIn file included from _/usr/local/clang/include/absl/log/check.hi:m37p:
lIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t507 :&1,:
       | warning:   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.h::511498::5235::  note: note: expanded from macro 'ABSL_INTERNAL_X'expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

    511498 |  |                i nAtB SvL1_,I NiTnEtR NvA2L,_ AcToTnRsItB UcThEa_rC*A PaTbUsRlE_Dn_oBnYn(utlhli se)x)p)r t e x t )   {                                  \\

            | |                                                    ^                                  ^

/usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/base/nullability.h::31241::922::  note: note: macro 'ABSL_INTERNAL_IF_true' defined hereexpanded from macro 'absl_nonnull'

     24131 |  | ##ddeeffiinnee  aAbBsSlL__nIoNnTnEuRlNlA L__NIoFn_nturlule
(      i| f                     ^_
satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
l  563 |  l   m u ,   c o n s t   C o n d i tcioonns&t _ciotnedr)a
t      o| r                                      ^(
hint/usr/local/clang/include/absl/base/nullability.h): 241A:B22S:L _note: Iexpanded from macro 'absl_nonnull'N
TER  N241A | L#_dCeOfMiMnAe) ;a
b      s| l                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
non/usr/local/clang/include/absl/container/internal/btree_container.hn:u509l:l47 :_ Nnote: oexpanded from macro 'ABSL_INTERNAL_X'n
null  
509       | |                       ^ 
        ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
In file included from       s2/s2shapeutil_contains_brute_force.cc| :                                              ^~~~18
:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 561../src/s2/s2coder.h::323::
 In file included from /usr/local/clang/include/absl/status/status.hwarning: :67passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/container/internal/btree_container.h::29511:
:In file included from 52/usr/local/clang/include/absl/strings/cord.h:: 94:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/strings/internal/cordz_info.h
:31:
/usr/local/clang/include/absl/synchronization/mutex.h  :5111179 | : 10 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     1179A | B S LM_uItNeTxE*R NaAbLs_lA_TnTuRlIlBaUbTlEe_ CmAuP_T;U
R      E| D         ^_
BY/usr/local/clang/include/absl/base/nullability.h(:t257h:i23s:) )note: )expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ n u l l a b\l
e       | _                                                   ^N
ul/usr/local/clang/include/absl/container/internal/common.hl:a32b:l9e:
       | note:                       ^macro 'ABSL_INTERNAL_IF_false' defined here

   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
398 warnings generated.
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                    In file included from  s2/s2shapeutil_contains_brute_force.cc : 18 :
\In file included from 
../src/s2/s2shapeutil_contains_brute_force.h      :| 21                                                   ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/container/internal/common.h27::
31In file included from :../src/s2/s2coder.h9::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hmacro 'ABSL_INTERNAL_IF_true' defined here:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h   :3129 | :
#In file included from d/usr/local/clang/include/absl/strings/cord.he:f94i:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :A31B:
S/usr/local/clang/include/absl/synchronization/mutex.hL:_1212I:N52T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_IF _1212t | rbuoeo(li fC_osnadtiitsifoine:d:,C a.s.t.A)n diCfa_lslaMteitshfoide(dc
o      n| s        ^t
 Condition* abslIn file included from _s2/s2shapeutil_coding.ccn:o28n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l36 :
cIn file included from )../src/s2/s2polygon.h :{34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                                   ^:
30:
In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::67241:
:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 564:note: 3expanded from macro 'absl_nonnull':
 warning: In file included from   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]s2/s2wedge_relations.cc241
: | 18#:
d  eIn file included from 564f../src/s2/s2wedge_relations.h | i: n 24eA:
 BaIn file included from SbL../src/s2/s2point.hs_:lI_25NnT:
oEnIn file included from Rn../src/s2/util/coding/coder.hNuA:Ll_36lX :
(_iIn file included from Nn../src/s2/base/casts.hosn:en36rut:
l_lIn file included from o
../src/s2/base/logging.hr      _:| a                     ^21s
s:
iIn file included from g/usr/local/clang/include/absl/log/check.hn:,37 :
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:e21r:
t_o/usr/local/clang/include/absl/log/internal/check_op.hr:_180a:s42s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
hint_im  p180l | ,A BcSoLn_sAtT T&R,I
B      U| T  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E
In file included from _  s2/s2shapeutil_contains_brute_force.ccP565:U | 18R E:
_ In file included from  F../src/s2/s2shapeutil_contains_brute_force.h U: N21 C:
 TIn file included from  I../src/s2/s2point.h O: N27  :
 cIn file included from  o../src/s2/s2coder.h n: s23 t:
  In file included from  c/usr/local/clang/include/absl/status/status.hch:oa67nr:
s*In file included from  t/usr/local/clang/include/absl/status/internal/status_internal.ha :In file included from b&29,s2/s2text_format.ccs:
 :tlIn file included from _16r/usr/local/clang/include/absl/strings/cord.hun:
:eoIn file included from 94,n../src/s2/s2text_format.h:
 n:In file included from tu34/usr/local/clang/include/absl/strings/internal/cordz_info.hrl:
:ulIn file included from 31e ../src/s2/mutable_s2shape_index.h:
,M:/usr/local/clang/include/absl/synchronization/mutex.h
a30:      k:
e1221| In file included from                   ~~~~~~~~~~~~~~~~~~~~C:/usr/local/clang/include/absl/container/btree_map.h
h54:e:c  k66 566F:
warning:  | aIn file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] i/usr/local/clang/include/absl/container/internal/btree.h
 l: S73  t:
1221 rIn file included from  |  i/usr/local/clang/include/absl/strings/cord.hb n:o og86 l (:

        /usr/local/clang/include/absl/strings/cord_analysis.hC o| :                                         ^ n32d
 :i t47i o:/usr/local/clang/include/absl/base/nullability.h n :c: Cwarning: :oanstype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t241s
tA_:n   diCt2232ael: | rl saFtnote: iexpanded from macro 'absl_nonnull'uonz
rc(  et_ito nh(241Gienttc) | E#o sAdntsitBem SCfaLtoei_nIdNidtMnTiEoRnNee*Am  La_boaCsrlbOyMU_ssMaAg)en(l;o
nc_      non| u                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~lnlo
ns tn/usr/local/clang/include/absl/container/internal/btree_container.hc )u:C ol509{r
l:d      R 47| e                                                     ^_:p
*N  /usr/local/clang/include/absl/base/nullability.honote: a:bnexpanded from macro 'ABSL_INTERNAL_X'241sn
:lu22_  l:n509l o | 
note: nexpanded from macro 'absl_nonnull'n u      
 l |   l                      ^241  r
 |  # e pd) ;e f
Ai      BIn file included from n| eSs2/s2wedge_relations.cc                                              ^L:
_18I:
N/usr/local/clang/include/absl/base/nullability.hTIn file included from :E../src/s2/s2wedge_relations.h241R::N2422A:
:LIn file included from  _../src/s2/s2point.hnote: A:expanded from macro 'absl_nonnull'T25
T:
R  In file included from I241../src/s2/util/coding/coder.hB | U:#T36dEe:
_fIn file included from CiA../src/s2/base/casts.hnPe:T U36aRb:
EsIn file included from Dl../src/s2/base/logging.h__:BnY21o(n:
tnhIn file included from uil/usr/local/clang/include/absl/log/check.hsl): )_37,N :
o nIn file included from  n /usr/local/clang/include/absl/log/internal/check_impl.hu l: l 21
 :
       /usr/local/clang/include/absl/log/internal/check_op.h|  :                     ^ 181
 : 25 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      181  |   \ 
        In file included from | cs2/s2text_format.cc                                              ^~~~o:
n16s:
tIn file included from  ../src/s2/s2text_format.h/usr/local/clang/include/absl/container/internal/btree_container.ha::b34564s:
:lIn file included from 3:../src/s2/mutable_s2shape_index.h::: S30warning: tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
a
In file included from t/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/container/internal/btree_container.hu::s66511*:
: In file included from 52a/usr/local/clang/include/absl/container/internal/btree.h:b: snote: 73lexpanded from macro 'ABSL_INTERNAL_X':
_
In file included from n/usr/local/clang/include/absl/strings/cord.ho  :n51186n | :
 u/usr/local/clang/include/absl/strings/cord_analysis.h l: l50  : s49 t: a  twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u 
sA,B   S 50Lc | _osnIiNszTteE_ RctN AhGLa_eArtTM*ToR rIeaBPUbrTselEc__iCsnAePoMTnenUmRouErDly_UBlsYa (gtpeh(riceso)fn)is)xt )   ;C 
o r       d | R e                        ^ p *
   /usr/local/clang/include/absl/base/nullability.ha b: s 241l _: n 22o n: n  u lnote:  l expanded from macro 'absl_nonnull' \r

e      p  | )241                                                   ^; | 

#      /usr/local/clang/include/absl/container/internal/common.hd| :e                                                ^31f
:i9/usr/local/clang/include/absl/base/nullability.hn::e 241 :note: a22macro 'ABSL_INTERNAL_IF_true' defined hereb:
s l   _note: 31nexpanded from macro 'absl_nonnull' | o
#nd  en241fu | il#ndlee  f_iNAnBeoS Lna_bnIsNullTl_
En      Ro| NnA                     ^nLu
_lIlF __tNrounen(uilfl_
sIn file included from       as2/s2wedge_relations.cc| t:                     ^i18
s:
fIn file included from i../src/s2/s2wedge_relations.he:d24,:
 In file included from .../src/s2/s2point.h.:.25):
 In file included from i../src/s2/util/coding/coder.hf:_36s:
aIn file included from t../src/s2/base/casts.hi:s36f:
iIn file included from e../src/s2/base/logging.hd:
21      :
| In file included from         ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/s2shapeutil_coding.cc:28:
In file included from   ../src/s2/s2lax_polygon_shape.h181: | 36 :
 In file included from  ../src/s2/s2polygon.h :c34o:
nIn file included from s../src/s2/mutable_s2shape_index.ht: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl::67::
S/usr/local/clang/include/absl/container/internal/btree_container.ht:a564t:u3s:*  warning: a'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]b
sl_no  n564n | u l lA BsStLa_tIuNsT,E RcNoAnLs_tX (cihnasre*r ta_bosrl__ansosningunl,l  ipnrseefritx_)o;r
_      a| s                                                         ^s
ig/usr/local/clang/include/absl/base/nullability.hn:_241h:i22n:t _note: iexpanded from macro 'absl_nonnull'm
pl  ,241  | c#odnesfti n&e, 
a      b| s  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
_n  o565n | n u l l   _ N o n n u l l 
        |                       ^ 
 const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |    In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
 In file included from  ../src/s2/s2point.h : 25 :
 In file included from c../src/s2/util/coding/coder.ho:n36s:
tIn file included from _../src/s2/base/casts.hi:t36e:
rIn file included from a../src/s2/base/logging.ht:o21r:
(In file included from h/usr/local/clang/include/absl/log/check.hi:n37t:
)In file included from  /usr/local/clang/include/absl/log/internal/check_impl.hA:B21S:
L/usr/local/clang/include/absl/log/internal/check_op.h_:I189N:T28E:R Nwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]L
_CO  M189M | Ai)n;l
i      n| e                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
con/usr/local/clang/include/absl/container/internal/btree_container.hs:t511 :a47b:s lnote: :expanded from macro 'ABSL_INTERNAL_X':
Sta  t511u | s *   a b s l _ n o nAnBuSlLl_ IANsTSEtRaNtAuLs_(AcToTnRsItB UaTbEs_lC:A:PSTtUaREtDu_sB&Y (st)h i{s
)      )| )                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e  \a
b      s| l                                              ^~~~_
nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_In file included from os2/s2wedge_relations.ccr:_18a:
sIn file included from s../src/s2/s2wedge_relations.hi:g24n:
_In file included from h../src/s2/s2point.hi:n25t:
_In file included from i../src/s2/util/coding/coder.hm:p36l:
,In file included from  ../src/s2/base/casts.hc:o36n:
sIn file included from t../src/s2/base/logging.h :&21,:
 In file included from &/usr/local/clang/include/absl/log/check.h&:,37
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_impl.h  ^:
21:
/usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/log/internal/check_op.h::509202::5246::  note: warning: expanded from macro 'ABSL_INTERNAL_X'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  509   | 202  |      e x p l i c iAtB SCLh_eIcNkTOEpRMNeAsLs_aAgTeTBRuIiBlUdTeEr_(CcAoPnTsUtR EcDh_aBrY*( tahbissl) _)n,ao bn sn lu _l nl o  n en u xl p rl t  e_ Nx o tn) n; u
 l       l 
|                                                     ^ | 
\                     ^
/usr/local/clang/include/absl/base/nullability.h
      :| 241                                                   ^:
22: /usr/local/clang/include/absl/container/internal/common.hnote: :expanded from macro 'absl_nonnull'32
:9:   241note:  | macro 'ABSL_INTERNAL_IF_false' defined here#
def   i32n | e# daebfsiln_en oAnBnSuLl_lI N_TNEoRnNnAuLl_lI
F      _| f                     ^a
lse(if_satisfied, ...) _In file included from _s2/s2shapeutil_contains_brute_force.ccV:A18_:
AIn file included from R../src/s2/s2shapeutil_contains_brute_force.hG:S21_:
_In file included from 
../src/s2/s2point.h      :| 27        ^:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from In file included from In file included from s2/s2shapeutil_coding.cc/usr/local/clang/include/absl/strings/cord.hs2/s2wedge_relations.cc:::289418:
:
:
In file included from In file included from In file included from ../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2wedge_relations.h:::363124:
:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hIn file included from ../src/s2/s2polygon.h:../src/s2/s2point.h:1230:34:25:
12:
In file included from :In file included from ../src/s2/mutable_s2shape_index.h ../src/s2/util/coding/coder.hwarning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]3036
:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/base/casts.h ::12306736 | :
 /usr/local/clang/include/absl/container/internal/btree_container.h:
 :In file included from  568 ../src/s2/base/logging.h:b:3o21:o:
 lIn file included from warning:  /usr/local/clang/include/absl/log/check.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted](:
*37a:
  bIn file included from 568s/usr/local/clang/include/absl/log/internal/check_impl.h | l :_ n21Ao:
Bn/usr/local/clang/include/absl/log/internal/check_op.hSnL:u_l209IlN: Tf15Eu:Rn Ncwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])L(
_TX*  ( 209ian | bs sel r_tcn_ounolrsl_ta abcsihsliaigtrny,*_ u inanksbneosrwtln_)_o,rn
_o      an| s           ^ns
iugl/usr/local/clang/include/absl/base/nullability.hnl:_ 241hN:ie22nw:tS _tnote: irexpanded from macro 'absl_nonnull'im
np  lg241,( |  #)cdo;enf
si      tn | e&               ^,a
 b&/usr/local/clang/include/absl/base/nullability.hs&l:,_241
n:      o22| n:  ^n 
unote: /usr/local/clang/include/absl/container/internal/btree_container.hlexpanded from macro 'absl_nonnull':l
511 :  _52N241:o |  n#note: nexpanded from macro 'ABSL_INTERNAL_X'du
lel  
f511In file included from       i | s2/util/coding/coder.cc |  n:                     ^ e19
  :
 aIn file included from  b../src/s2/util/coding/coder.hsIn file included from  : ls2/s2shapeutil_contains_brute_force.cc36 _::
 n18In file included from Ao:
../src/s2/base/casts.hBnIn file included from :In file included from Sn../src/s2/s2shapeutil_contains_brute_force.h36s2/s2text_format.ccLu::
:_l21In file included from 16Il:
../src/s2/base/logging.h:
N In file included from :In file included from T_../src/s2/s2point.h21../src/s2/s2text_format.hEN::
:Ro27In file included from 34Nn:
/usr/local/clang/include/absl/log/check.h:
AnIn file included from :In file included from Lu../src/s2/s2coder.h37../src/s2/mutable_s2shape_index.h_l::
:Al23
In file included from 30T:
T      /usr/local/clang/include/absl/log/internal/check_impl.h:
In file included from R| :In file included from /usr/local/clang/include/absl/status/status.hI                     ^21/usr/local/clang/include/absl/container/btree_map.h:B
:
:67U66T/usr/local/clang/include/absl/log/internal/check_op.h:
:
E:In file included from In file included from _511C/usr/local/clang/include/absl/status/internal/status_internal.hA/usr/local/clang/include/absl/container/internal/btree.h::P:1329T73::
U:
 In file included from RIn file included from /usr/local/clang/include/absl/strings/cord.hwarning: E/usr/local/clang/include/absl/strings/cord.h:type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]D:94
_86:
B:
In file included from Y  (/usr/local/clang/include/absl/strings/internal/cordz_info.ht/usr/local/clang/include/absl/strings/cord_analysis.h511:h: | 31i56sc:
o:)/usr/local/clang/include/absl/synchronization/mutex.hn56):)s:t1230     c:warning:  h34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] a : 
r * warning:   type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]   a b
56 s | l  s_ 1230 in |  z u l l aeb l e_      t Cb o hGeo\ectkEls t
is(t      rm*aa| ctbes                                                   ^mdpl
Fta_i/usr/local/clang/include/absl/container/internal/common.hrrSnh:uoenan32uIlmrp:lle M9e(m
of:      ru | ynUnote: s            ^cmacro 'ABSL_INTERNAL_IF_false' defined here)a(
T
g*e /usr/local/clang/include/absl/base/nullability.h   (a:b32c257os | l:_n#23nsd:eIn file included from ut fs2/s2wedge_relations.ccl note: Cion:lexpanded from macro 'absl_nullable'red18a
b R:
i  lAieIn file included from 257BtSyL__p../src/s2/s2wedge_relations.h | uI*:#nN 24dkTnao:
eEfbisnlwIn file included from Re_n../src/s2/s2point.hN nao):Abn,n25Ls
lu_:
_      lnlIn file included from I| u                                 ^l l../src/s2/util/coding/coder.hF
rae:_/usr/local/clang/include/absl/base/nullability.hbp36f:l)e:
a289; 
_In file included from l:      N../src/s2/base/casts.hs34| u                                                       ^l:e:
l36( a:
/usr/local/clang/include/absl/base/nullability.hinote: fb_In file included from :expanded from macro 'absl_nullability_unknown'ls../src/s2/base/logging.h241
ea
::t  i      s2122289| f                      ^:
: | i#
dIn file included from  eed/usr/local/clang/include/absl/log/check.hnote: f,:In file included from expanded from macro 'absl_nonnull'i n37s2/util/coding/coder.cc
.e.:
:   .In file included from 19241a)/usr/local/clang/include/absl/log/internal/check_impl.h:
 | b :In file included from #sdle__21../src/s2/util/coding/coder.hfniu_:
:nlV36A/usr/local/clang/include/absl/log/internal/check_op.hel:
a_b: In file included from AiR226a../src/s2/base/casts.hlG:b:iS59s36t_:l:
y_ _In file included from n_ounnn
uwarning: ../src/s2/base/logging.hk      nlotype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:| l        ^ w_
21
nN:
 o_nNnuIn file included from l  u/usr/local/clang/include/absl/log/check.hl226l:_ | l37uv
:
no      In file included from si| /usr/local/clang/include/absl/log/internal/check_impl.h                     ^pd:
e 21cM:
i/usr/local/clang/include/absl/log/internal/check_op.haf:ki512ee:Cd17
h:      e |                                  ^cwarning: ktype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
O
pVa  l512u | e S t r icnIn file included from ogs2/s2shapeutil_contains_brute_force.ccn(:ss18tt:
 dIn file included from c:../src/s2/s2shapeutil_contains_brute_force.hh::oa21rs:
*tIn file included from  r../src/s2/s2point.hae:ab27ms:
l&In file included from _ ../src/s2/s2coder.hno:us23l,:
l In file included from ac/usr/local/clang/include/absl/status/status.hbo:ln67es:
 tIn file included from s /usr/local/clang/include/absl/status/internal/status_internal.h1v:,o29 In file included from i:
cs2/s2shapeutil_coding.ccodIn file included from :n*/usr/local/clang/include/absl/strings/cord.h28s ::
ta94In file included from  b:
../src/s2/s2lax_polygon_shape.hcsIn file included from :hl/usr/local/clang/include/absl/strings/internal/cordz_info.h36a_::
rn31In file included from *u:
l../src/s2/s2polygon.h /usr/local/clang/include/absl/synchronization/mutex.hl:a:ba341231sb:
:llIn file included from 8_e../src/s2/mutable_s2shape_index.h:n : up30warning: l):
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l;In file included from 
a
/usr/local/clang/include/absl/container/btree_map.hb l      :1231e| 67 |                                                            ^:
 s
 /usr/local/clang/include/absl/container/internal/btree_container.h2 :,/usr/local/clang/include/absl/base/nullability.h 570
:T:*       2573| a                ^::b
23 s:/usr/local/clang/include/absl/base/nullability.hwarning: l :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_note: 257
nexpanded from macro 'absl_nullable':u  
23l570:l   |   a 257note: bAi | expanded from macro 'absl_nullable'BlS#
iLtd  _yIe257f_iN | u#nTnEkdneReNfAiLnoe _wXn(  aianrabsgb)sesrl
_lt      _no_| nurl_laa       ^usbsl
li/usr/local/clang/include/absl/base/nullability.hgenl: ,_a289 Nib:unlsll34eare:btl  _e_note: No
rexpanded from macro 'absl_nullability_unknown'_u      
al| lsa  b                      ^s289l
i | ge#nd
_ehIn file included from       fis2/util/coding/coder.ccn| i:t                      ^n19_
e:
 iIn file included from ma../src/s2/util/coding/coder.hpb:ls36,l:
_ In file included from cn../src/s2/base/casts.hou:nls36tl:
 a&In file included from b,../src/s2/base/logging.hi :&&li21ty:
_In file included from u/usr/local/clang/include/absl/log/check.hn:k37n:
oIn file included from w/usr/local/clang/include/absl/log/internal/check_impl.hn: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.hu:l512l:_47u:n swarning: ptype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
cifi  e512d | 
        |                                   ^ 
const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      In file included from | s2/s2shapeutil_contains_brute_force.cc                      ^:
18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67In file included from :
s2/util/coding/coder.ccIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h19::
29In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/strings/cord.h36::
94In file included from :
../src/s2/base/casts.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h36::
31In file included from :
../src/s2/base/logging.h:/usr/local/clang/include/absl/synchronization/mutex.h21::
1241In file included from :/usr/local/clang/include/absl/log/check.h12::37 :
In file included from warning: /usr/local/clang/include/absl/log/internal/check_impl.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]21
:
/usr/local/clang/include/absl/log/internal/check_op.h:513: 171241: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 b  o513o | l   ( * acbosnls_tn ocnhnaurl*l  afbusnlc_)n(oTn*n ualbls le_xnpurltleaxbti)l;i
t      y| _                ^u
nk/usr/local/clang/include/absl/base/nullability.hn:o241w:n22):, 
note:       expanded from macro 'absl_nonnull'| 
           ^
  241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from In file included from s2/util/coding/coder.ccs2/s2shapeutil_contains_brute_force.cc::1918:
:
In file included from In file included from ../src/s2/util/coding/coder.h../src/s2/s2shapeutil_contains_brute_force.h::3621:
:
In file included from In file included from ../src/s2/base/casts.h../src/s2/s2point.h::3627:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2coder.h::2123:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/status/status.h::3767:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/status/internal/status_internal.h::2129:
:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :/usr/local/clang/include/absl/strings/cord.h514::9413:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:warning: 31type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/synchronization/mutex.h:1241  :51434 | :c owarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]s
t c h1241a | r *   a bbsolo_ln u(l*laabbslle_ nCohnencuklslt rfcumnpcf)a(lTs*e Iambpsll(_
n      u| l            ^l
ab/usr/local/clang/include/absl/base/nullability.hi:l257i:t23y:_ unote: nexpanded from macro 'absl_nullable'k
no  w257n | )#,d
e      f| i                                 ^n
e absl/usr/local/clang/include/absl/base/nullability.h_:n289u:l34l:a bnote: lexpanded from macro 'absl_nullability_unknown'e
 _N  u289l | l#adbelfei
n      e|                        ^a
bsl_nIn file included from us2/util/coding/coder.ccl:l19a:
bIn file included from i../src/s2/util/coding/coder.hl:i36t:
yIn file included from _../src/s2/base/casts.hu:n36k:
nIn file included from o../src/s2/base/logging.hw:n21 :
_In file included from N/usr/local/clang/include/absl/log/check.hu:l37l:
_In file included from u/usr/local/clang/include/absl/log/internal/check_impl.hn:s21p:
e/usr/local/clang/include/absl/log/internal/check_op.hc:i515f:i17e:d 
warning:       type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| 
                                 ^
  515 |     const char* absl_nulIn file included from ls2/s2shapeutil_contains_brute_force.cca:b18l:
eIn file included from  ../src/s2/s2shapeutil_contains_brute_force.hs:121,:
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from  ../src/s2/s2coder.hc:h23a:
rIn file included from */usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.ha:b94l:
eIn file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hs:231,:

      /usr/local/clang/include/absl/synchronization/mutex.h| :                ^1242
:44/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23:type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'absl_nullable'
 1242   | 257  |  # d etfyipneen aambes la_bnsull:l:atbylpee __iNduelnltaibtlye<
T      >| :                      ^:
type* abIn file included from ss2/util/coding/coder.ccl:_19n:
uIn file included from l../src/s2/util/coding/coder.hl:a36b:
iIn file included from l../src/s2/base/casts.hi:t36y:
_In file included from u../src/s2/base/logging.hn:k21n:
oIn file included from w/usr/local/clang/include/absl/log/check.hn:
37      :
| In file included from                                            ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/check_op.h::289515::3447::  note: warning: expanded from macro 'absl_nullability_unknown'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  289   | 515# | d e f i nceo nasbts lc_hnaurl*l aabbislli_tnyu_lulnakbnloew ns 1_,N ucloln_sutn scpheacri*f iaebds
l      _| n                                 ^u
llable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _In file included from Ns2/s2shapeutil_contains_brute_force.ccu:l18l:
aIn file included from b../src/s2/s2shapeutil_contains_brute_force.hl:e21
:
      In file included from | ../src/s2/s2point.h                      ^:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/util/coding/coder.cc/usr/local/clang/include/absl/status/status.h::1967:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::3629:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.h::3694:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/synchronization/mutex.h::371249:
:In file included from 8/usr/local/clang/include/absl/log/internal/check_impl.h:: 21:
warning: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
516:17:  1249 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
    T516* |   a b s lc_onnosntn uclhla ro*b jaebcstl,_
n      o| n       ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241e:x22p:r tnote: eexpanded from macro 'absl_nonnull'x
t)  ;241
 |       #| d                ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
on  n241u | l#ld e_fNionnen ualbls
l      _| n                     ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/util/coding/coder.cc/usr/local/clang/include/absl/status/status.h::1967:
:
In file included from In file included from ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/status/internal/status_internal.h::3629:
:
In file included from In file included from ../src/s2/base/casts.h/usr/local/clang/include/absl/strings/cord.h::3694:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2131:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/check.h::125037::
43In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
:517:, 131250: |  
 warning:        type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] | 
   ^b
o  o517l |  c/usr/local/clang/include/absl/container/internal/btree_container.h(o:n509asb:ts 52lc::h: atnote: yrexpanded from macro 'ABSL_INTERNAL_X'p*
e _aibd  se509ln | _t in tuy l< lT a> :b :l tey  p CeAh:Be:S*cL k_asIbtNsTIn file included from rlEc_aRnNs2/s2wedge_relations.ccsoA:encLm18n_uAlpl:
Tt In file included from TrRuIeBImm../src/s2/s2wedge_relations.hUep:Ttlh24E(_
CoA:
      dPIn file included from | )T../src/s2/s2point.h            ^(U:
)R)25/usr/local/clang/include/absl/base/nullability.hE
:
:D      _In file included from 257| B                                          ^../src/s2/util/coding/coder.h:Y
:23(36/usr/local/clang/include/absl/base/nullability.h:t:
: hIn file included from 241note: iexpanded from macro 'absl_nullable'../src/s2/base/casts.h:s
):22)  36:,257 :
  |  #In file included from note:  expanded from macro 'absl_nonnull' d ../src/s2/base/logging.h
e f:   i 21241n e:
 |   In file included from # dae/usr/local/clang/include/absl/log/check.h bfs: il37 n_e:
 n uIn file included from  alb/usr/local/clang/include/absl/log/internal/check_impl.h lsa: lb_21 lne:
 o n /usr/local/clang/include/absl/log/internal/check_op.h_n :Nuulll  276l a_:\bNl13
oen:      
n |                                                          ^uwarning: | 
ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                      ^l/usr/local/clang/include/absl/container/internal/common.h

:32:9: In file included from note: s2/util/coding/coder.ccmacro 'ABSL_INTERNAL_IF_false' defined here:
  19276:
    | 32c | o#ndsetf ivnoei dA*B SaLb_sIlN_TnEuRlNlAaLb_lIeF _ofpaelrsaet(oirf<_<s(asttids:f:ioesdt,r e.a.m.&), 
_      _| V            ^A
_ARGS_/usr/local/clang/include/absl/base/nullability.h_:
257      :| 23        ^:
 note: expanded from macro 'absl_nullable'
  257 | #define absl_In file included from ns2/s2shapeutil_coding.ccu:l28l:
aIn file included from b../src/s2/s2lax_polygon_shape.hl:e36 :
_In file included from N../src/s2/s2polygon.hu:l34l:
aIn file included from b../src/s2/mutable_s2shape_index.hl:e30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                      ^:
67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(iIn file included from ns2/s2wedge_relations.ccs:e18r:
tIn file included from _../src/s2/s2wedge_relations.ho:r24_:
aIn file included from s../src/s2/s2point.hs:i25g:
nIn file included from ,../src/s2/util/coding/coder.h :i36n:
sIn file included from e../src/s2/base/casts.hr:t36_:
oIn file included from r../src/s2/base/logging.h_:a21s:
sIn file included from i/usr/local/clang/include/absl/log/check.hg:n37_:
hIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:t21_:
i/usr/local/clang/include/absl/log/internal/check_op.hm:p277l:,50 :c owarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
t &,   277& | & , 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 511 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      511  |                      A B S L _cIoNnTsEtR NvAoLi_dA*T TaRbIsBlU_TnEu_lClAaPbTlUeR EvDa_lBuYe()t;h
i      s| )                                                 ^)
) /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
      257  |  # d e f i n e   a\b
s      l| _                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl:a31b:l9e:  _note: Nmacro 'ABSL_INTERNAL_IF_true' defined hereu
lla   b31l | e#
d      e| f                      ^i
ne ABSL_INTERNAL_IF_true(if_satisfIn file included from is2/s2wedge_relations.cce:d18,:
 In file included from .../src/s2/s2wedge_relations.h.:.24):
 In file included from i../src/s2/s2point.hf:_25s:
aIn file included from t../src/s2/util/coding/coder.hi:s36f:
iIn file included from e../src/s2/base/casts.hd:
36      :
| In file included from         ^../src/s2/base/logging.h
:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | coIn file included from ns2/s2shapeutil_coding.ccs:t28 :
vIn file included from o../src/s2/s2lax_polygon_shape.hi:d36*:
 In file included from a../src/s2/s2polygon.hb:s34l:
_In file included from n../src/s2/mutable_s2shape_index.hu:l30l:
aIn file included from b/usr/local/clang/include/absl/container/btree_map.hl:e67 :
o/usr/local/clang/include/absl/container/internal/btree_container.hp:e570r:a3t:o rwarning: <'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]<
(std::  o570s | t r eAaBmS&L,_ IsNtTdE:R:NnAuLl_lXp(tirn_ste)r;t
_      o| r            ^_
as/usr/local/clang/include/absl/base/nullability.hs:i257g:n23,:  inote: nexpanded from macro 'absl_nullable's
er  /usr/local/clang23/bin/clang++ -std=gnu++17 -I"/data/localhost/ripley/R/R-clang-trunk/include" -DNDEBUG -I../src -DSTRICT_R_HEADERS -DRCPP_NO_MASK_RF_ERROR -I'/data/localhost/ripley/R/test-clang/Rcpp/include' -I'/data/localhost/ripley/R/test-clang/wk/include' -isystem /usr/local/clang23/include -I/usr/local/clang/include   -I/usr/local/clang/include  -pthread -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 -Wno-missing-template-arg-list-after-template-kw   -c s2/util/units/length-units.cc -o s2/util/units/length-units.o
t257_ | o#rd_eafsisnieg na_bhsiln_tn_uilmlpalb,l ec o_nNsutl l&a,b l&e&
,      
|                             ^| 
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           AIn file included from Bs2/s2wedge_relations.ccS:L18_:
IIn file included from N../src/s2/s2wedge_relations.hT:E24R:
NIn file included from A../src/s2/s2point.hL:_25A:
TIn file included from T../src/s2/util/coding/coder.hR:I36B:
UIn file included from T../src/s2/base/casts.hE:_36C:
AIn file included from P../src/s2/base/logging.hT:U21R:
EIn file included from D/usr/local/clang/include/absl/log/check.h_:B37Y:
(In file included from t/usr/local/clang/include/absl/log/internal/check_impl.hh:i21s:
)/usr/local/clang/include/absl/log/internal/check_op.h):)292 : 13 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       292  |  c o n s t   c h a r *\ 
a      b| s                                              ^~~~l
_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: In file included from warning: s2/s2wedge_relations.ccpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define
 a      b| sl                     ^_
nonnIn file included from u../src/s2/util/coding/coder.hl:l36 :
_In file included from N../src/s2/base/casts.ho:n36n:
uIn file included from l../src/s2/base/logging.hl:
21      :
| In file included from                      ^/usr/local/clang/include/absl/log/check.h
:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     In file included from cs2/s2wedge_relations.cco:n18s:
tIn file included from  ../src/s2/s2wedge_relations.hc:h24a:
rIn file included from *../src/s2/s2point.h :a25b:
sIn file included from l../src/s2/util/coding/coder.h_:n36u:
lIn file included from l../src/s2/base/casts.ha:b36In file included from l:
s2/s2shapeutil_contains_brute_force.cceIn file included from : ../src/s2/base/logging.h18s::
121In file included from ,:
../src/s2/s2shapeutil_contains_brute_force.h In file included from :c/usr/local/clang/include/absl/log/check.h21o::
n37In file included from s:
../src/s2/s2point.htIn file included from : /usr/local/clang/include/absl/log/internal/check_impl.h27c::
h21In file included from a:
../src/s2/s2coder.hr/usr/local/clang/include/absl/log/internal/check_op.h:*:23 298:
a:In file included from b22/usr/local/clang/include/absl/status/status.hs::l 67_:
warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from u
/usr/local/clang/include/absl/status/internal/status_internal.hl:l29a  :
b298In file included from l | /usr/local/clang/include/absl/strings/cord.hec: o94sn:
s2In file included from t,/usr/local/clang/include/absl/strings/internal/cordz_info.h
 :      u31| n:
                ^s
i/usr/local/clang/include/absl/synchronization/mutex.hg:/usr/local/clang/include/absl/base/nullability.hn1259:e:257d14: :c23 h:awarning:  rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: *
expanded from macro 'absl_nullable' 
a b  s1259257l | _ |  # nd oe fcnionnnuelsl  toap ebTrs*l a_anbtusollrl_an<b<(std::olnbeans iuc__loNsltur elaoml<bcahjabre,l cTert
,a      
i|                             ^t| s
>             ^&
,
      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22:/usr/local/clang/include/absl/base/nullability.h :In file included from note: 241s2/util/coding/coder.ccexpanded from macro 'absl_nonnull'::
2219:  :
 241In file included from note:  | ../src/s2/util/coding/coder.h#expanded from macro 'absl_nonnull':d
36e:
f  In file included from i241../src/s2/base/casts.hn | :e#36 d:
aeIn file included from bf../src/s2/base/logging.hsi:ln21_e:
n In file included from oa/usr/local/clang/include/absl/log/check.hnb:ns37ul:
_lIn file included from nl/usr/local/clang/include/absl/log/internal/check_impl.h o:_n21Nn:
uo/usr/local/clang/include/absl/log/internal/check_op.hln:ln518u :_l47lN:
o       nwarning: | ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^u

ll  
518       | |                       ^ 
  const char*In file included from  s2/s2shapeutil_contains_brute_force.cca:bIn file included from 18ss2/s2wedge_relations.cc:
l:In file included from _18../src/s2/s2shapeutil_contains_brute_force.hn:
:uIn file included from 21l../src/s2/s2wedge_relations.h:
l:In file included from a24../src/s2/s2point.hb:
:lIn file included from 27e../src/s2/s2point.h:
 :In file included from s25../src/s2/s2coder.h1:
:,In file included from 23 ../src/s2/util/coding/coder.h:
c:In file included from o36/usr/local/clang/include/absl/status/status.hn:
:sIn file included from 67t../src/s2/base/casts.h:
 :In file included from c36/usr/local/clang/include/absl/status/internal/status_internal.hh:
:aIn file included from 29r../src/s2/base/logging.h:
*:In file included from  21/usr/local/clang/include/absl/strings/cord.ha:
:bIn file included from 94s/usr/local/clang/include/absl/log/check.h:
l:In file included from _37/usr/local/clang/include/absl/strings/internal/cordz_info.hn:
:uIn file included from 31l/usr/local/clang/include/absl/log/internal/check_impl.h:
l:/usr/local/clang/include/absl/synchronization/mutex.ha21:b:
1260l/usr/local/clang/include/absl/log/internal/check_op.h:e:43 299:s: 267warning: ,:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]       
warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                              ^
 
1260 |    /usr/local/clang/include/absl/base/nullability.h 299:  | 257  :b 23o :o   note: lexpanded from macro 'absl_nullable'  
 (   a 257b  | s# ld :e :f tiy np ee  _a ibd se ln _ tn iu tl yl <aT b> l: e : t _yN p u el: l:a *b  lae b
s        l| _                       ^n 
o n n ucloIn file included from lns2/util/coding/coder.cc s:mt19 e:
tuIn file included from hn../src/s2/util/coding/coder.hos:di36)g:
(nIn file included from )e../src/s2/base/casts.h
d:       36| c:
                                          ^hIn file included from 
a../src/s2/base/logging.hr:/usr/local/clang/include/absl/base/nullability.h*21: :
241aIn file included from :b/usr/local/clang/include/absl/log/check.h22s::l37 _:
note: nIn file included from expanded from macro 'absl_nonnull'o/usr/local/clang/include/absl/log/internal/check_impl.h
n:n  21u241:
l | /usr/local/clang/include/absl/log/internal/check_op.hl#:d)519e;:
f17      i:| n                                                                  ^ e
warning:  /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a:
b241s:  l22519_: | n  o nnote:  nexpanded from macro 'absl_nonnull' uc
lol  n s241_tN |  o#cndhnaeurfl*li 
an      be| s                      ^la
_bnsoln_nnuolnln uelxlp r_tNeoxntn)u;l
l      
|                       ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2shapeutil_contains_brute_force.cco:n18n:
uIn file included from l../src/s2/s2shapeutil_contains_brute_force.hl:
21      :
| In file included from                      ^../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/util/coding/coder.cc1279::1935:
:In file included from  ../src/s2/util/coding/coder.h:warning: 36type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/casts.h:36:
 In file included from 1279../src/s2/base/logging.h | :v21o:
iIn file included from d/usr/local/clang/include/absl/log/check.h :R37e:
gIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hs:t21e:
r/usr/local/clang/include/absl/log/internal/check_op.hM:u520t:e13x:P rwarning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ile  r520( | vcooinds t( *cahbasrl*_ naobnsnlu_lnlu lflna)b(lien tC6h4e_ctk swtaricta_sceyccmlpefsa)l)s;e
I      m| p                                  ^l
(
      /usr/local/clang/include/absl/base/nullability.h| :            ^241
:22:/usr/local/clang/include/absl/base/nullability.h :257note: :expanded from macro 'absl_nonnull'23
: In file included from   note: s2/s2wedge_relations.cc241expanded from macro 'absl_nullable': | 
18#:
  dIn file included from 257e../src/s2/s2wedge_relations.h | f#:id24ne:
ef In file included from ian../src/s2/s2point.hbes: la25_bn:
solIn file included from n_n../src/s2/util/coding/coder.hnuu:lll36l a:
_bIn file included from Nlo../src/s2/base/casts.hen :n_36uN:
luIn file included from ll../src/s2/base/logging.h
l  :      a57221| b                     ^l | e:

 
In file included from        A/usr/local/clang/include/absl/log/check.h| B:                      ^S37
L:
_In file included from I/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from N:s2/util/coding/coder.ccT21:E:
19R:
/usr/local/clang/include/absl/log/internal/check_op.hNIn file included from :AIn file included from ../src/s2/util/coding/coder.h323Ls2/s2shapeutil_contains_brute_force.cc::_:X36(4618:
i::
In file included from n In file included from ../src/s2/base/casts.hswarning: ../src/s2/s2shapeutil_contains_brute_force.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:e:r
3621t:
:
_In file included from o  In file included from ../src/s2/base/logging.hr323../src/s2/s2point.h:_ | : 21a27 :
s:
sfIn file included from In file included from ir/usr/local/clang/include/absl/log/check.h../src/s2/s2coder.hgi::ne3723,n:
:
 dIn file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.hi /usr/local/clang/include/absl/status/status.h:nv:21so67:
e/usr/local/clang/include/absl/log/internal/check_op.hi:
r:tdIn file included from 521_ /usr/local/clang/include/absl/status/internal/status_internal.h:oA:17rb29:_s:
 alIn file included from warning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]F/usr/local/clang/include/absl/strings/cord.hs
io:g  nr94521_m:
 | h aIn file included from i nt/usr/local/clang/include/absl/strings/internal/cordz_info.h t F:_cil31omnu:
psls/usr/local/clang/include/absl/synchronization/mutex.ht,h:  (1293ccS:hot33anr:rsi *tnwarning:   gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
&ib,f s y1293Sl&_ | i&n,uvln
olik      adb*|  lR   ^ee a
gsib1s,t e/usr/local/clang/include/absl/container/internal/btree_container.hrsc:oMnl509ustt_:e xn52cTo:hran acer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23r:
In file included from /usr/local/clang/include/absl/status/status.h:*67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94a:
bIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.he: 31s:
2/usr/local/clang/include/absl/synchronization/mutex.h,:
1309      :| 35                ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:257: 231309: |  vnote: oexpanded from macro 'absl_nullable'i
d R  e257g | i#sdteefriCnoen daVbasrlT_rnauclelra(bvloei d_ N(u*lalbasbll_en
o      n| n                      ^u
ll fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/util/coding/coder.cc
:19  :
241In file included from  | ../src/s2/util/coding/coder.h#:d36e:
fIn file included from i../src/s2/base/casts.hn:e36 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :_21N:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n521u:l47l:
       | warning:                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  521In file included from  | s2/s2shapeutil_contains_brute_force.cc : 18 :
 In file included from c../src/s2/s2shapeutil_contains_brute_force.ho:n21s:
tIn file included from  ../src/s2/s2point.hc:h27a:
rIn file included from *../src/s2/s2coder.h :a23b:
sIn file included from l/usr/local/clang/include/absl/status/status.h_:n67u:
lIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.ha:b29l:
eIn file included from  /usr/local/clang/include/absl/strings/cord.hs:194,:
 In file included from c/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31s:
t/usr/local/clang/include/absl/synchronization/mutex.h :c1310h:a17r:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_ n1310u | l l a b lceo nss2t, 
c      h| a                                              ^r
* /usr/local/clang/include/absl/base/nullability.ha:b257s:l23_:n onote: nexpanded from macro 'absl_nullable'n
ul  l257  | m#sdge,f icnoen satb svlo_indu*l laabbslle_ n_oNnunlullalb lcev
)      )| ;                      ^

      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/util/coding/coder.cc22::19 :
In file included from note: ../src/s2/util/coding/coder.hexpanded from macro 'absl_nonnull':
36:
  In file included from 241../src/s2/base/casts.h | :#36d:
eIn file included from f../src/s2/base/logging.hi:n21e:
 In file included from a/usr/local/clang/include/absl/log/check.hb:s37l:
_In file included from n/usr/local/clang/include/absl/log/internal/check_impl.ho:n21n:
u/usr/local/clang/include/absl/log/internal/check_op.hl:l522 :_17N:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll  
522       | |                       ^ 
  constIn file included from  s2/s2shapeutil_contains_brute_force.ccc:h18a:
rIn file included from *../src/s2/s2shapeutil_contains_brute_force.h :a21b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from e/usr/local/clang/include/absl/status/status.hx:p67r:
tIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hx:t29):
;In file included from 
/usr/local/clang/include/absl/strings/cord.h      :| 94                ^:

In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/base/nullability.h31::
241/usr/local/clang/include/absl/synchronization/mutex.h::221310:: 47:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | # d1310e | f i n e  caobnsslt_ ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^m
sg, const void* absl_nonnull cv));
      |                                               ^n
/usr/local/clang/include/absl/base/nullability.h:241:22note: :u lexpanded from macro 'ABSL_INTERNAL_X'note: l
expanded from macro 'absl_nonnull' 
si  n241  k | ,509#
 | d       e | f                                             ^ i 
n e   a b s /usr/local/clang/include/absl/base/nullability.hlA:_Bn241SoL:n_22nIu:NlT lE note: Rexpanded from macro 'absl_nonnull'_NN
AoLn_nAu  TlT241lR | 
I#      Bd| U                     ^eT
fEi_nCeA PaTbUsRlE_Dn_oBnYn(utlhli s_)N)o,n n u l l 
        |                       ^ 
               \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: In file included from macro 'ABSL_INTERNAL_IF_false' defined heres2/s2winding_operation.cc
:19:
   In file included from 32../src/s2/s2winding_operation.h | :#23d:
eIn file included from f../src/s2/s2builder.hi:n31e:
 In file included from A/usr/local/clang/include/absl/container/flat_hash_set.hB:S43L:
_In file included from I/usr/local/clang/include/absl/container/hash_container_defaults.hN:T19E:
RIn file included from N/usr/local/clang/include/absl/container/internal/hash_function_defaults.hA:L59_:
IIn file included from F/usr/local/clang/include/absl/strings/cord.h_:f82a:
lIn file included from s/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:(23i:
fIn file included from _/usr/local/clang/include/absl/crc/crc32c.hs:a32t:
iIn file included from s/usr/local/clang/include/absl/strings/str_format.hf:i84e:
dIn file included from ,/usr/local/clang/include/absl/strings/internal/str_format/bind.h :.29.:
.)/usr/local/clang/include/absl/strings/internal/str_format/parser.h :_227_:V11A:_ Awarning: R'enable_if' is a clang extension [-Wgcc-compat]G
S__
      |           ^227
 |           enable_if(str_format_internal::EnsureConstexpr(format),
      |           ^
/usr/local/clang/include/absl/strings/internal/str_format/parser.h:229:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  229 |           enable_if(stIn file included from rs2/s2wedge_relations.cc_:f18o:
rIn file included from m../src/s2/s2wedge_relations.ha:t24_:
iIn file included from n../src/s2/s2point.ht:e25r:
nIn file included from a../src/s2/util/coding/coder.hl::36::
VIn file included from a../src/s2/base/casts.hl:i36d:
FIn file included from o../src/s2/base/logging.hr:m21a:
tIn file included from I/usr/local/clang/include/absl/log/check.hm:p37l:
<In file included from C/usr/local/clang/include/absl/log/internal/check_impl.h.:.21.:
>(/usr/local/clang/include/absl/log/internal/check_op.hf:o428r:m44a:t )warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |           ^
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2shapeutil_coding.ccN:o28n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l36
:
      In file included from | ../src/s2/s2polygon.h                     ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :s2/s2wedge_relations.cc574::183:
:In file included from  ../src/s2/s2wedge_relations.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]24
:
In file included from ../src/s2/s2point.h:25  :
574In file included from  | ../src/s2/util/coding/coder.h : 36A:
BIn file included from S../src/s2/base/casts.hL:_36I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:X37(:
iIn file included from n/usr/local/clang/include/absl/log/internal/check_impl.hs:e21r:
t/usr/local/clang/include/absl/log/internal/check_op.h_:o429r:_31a:s swarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
n, i  n429s | e r t _ oTr1_ avs1s,i gTn2_ hvi2n,t _ciomnpslt,  cchoanrs*t  a&b,s l&_&n,o
n      n| u  ^l
l e/usr/local/clang/include/absl/container/internal/btree_container.hx:p509r:t52e:x tnote: )expanded from macro 'ABSL_INTERNAL_X' 
ABS  L509_ | A T T R I B U T E _ NAOBISNLL_IINNET;E
R      N| A                              ^L
_A/usr/local/clang/include/absl/base/nullability.hT:T241R:I22B:U Tnote: Eexpanded from macro 'absl_nonnull'_
CA  P241T | U#RdEeDf_iBnYe( tahbissl)_)n,o n n u l l   _ N o n n u l l 
        |                       ^ 
     \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INIn file included from Ts2/s2wedge_relations.ccE:R18N:
AIn file included from L../src/s2/s2wedge_relations.h_:I24F:
_In file included from t../src/s2/s2point.hr:u25e:
(In file included from i../src/s2/util/coding/coder.hf:_36s:
aIn file included from t../src/s2/base/casts.hi:s36f:
iIn file included from e../src/s2/base/logging.hd:,21 :
.In file included from ./usr/local/clang/include/absl/log/check.h.:)37 :
iIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.h_:s21a:
t/usr/local/clang/include/absl/log/internal/check_op.hi:s432f:i13e:d 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]        ^

  432 | const char* abslIn file included from _s2/s2shapeutil_coding.ccn:o28n:
nIn file included from u../src/s2/s2lax_polygon_shape.hl:l36 :
MIn file included from a../src/s2/s2polygon.hk:e34C:
hIn file included from e../src/s2/mutable_s2shape_index.hc:k30O:
pIn file included from S/usr/local/clang/include/absl/container/btree_map.ht:r67i:
n/usr/local/clang/include/absl/container/internal/btree_container.hg:(574T:13 :v 1warning: ,'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
T2 v2  ,574
 |        |              ^A
BS/usr/local/clang/include/absl/base/nullability.hL_I:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.hN:36:
TIn file included from E../src/s2/base/logging.hR:N21A:
LIn file included from _/usr/local/clang/include/absl/log/check.hX:(37i:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.he:r21t:
_/usr/local/clang/include/absl/log/internal/check_op.ho:r433_:a56s:s iwarning: gtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
, i  n433s | e r t _ o r _ a s s i g n _ h i n t _ i m p l ,   c o n s t   & ,   & & , 
        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
  co  n575s | t   c h a r *   a b s l _ n o n n u ltlr ueex,p rttreuxet,)  c{o
n      s| t                                                       ^_
ite/usr/local/clang/include/absl/base/nullability.hr:a241t:o22r:( hnote: iexpanded from macro 'absl_nonnull'n
t)   241A | B#SdLe_fIiNnTeE RaNbAsLl__CnOoMnMnAu)l;l
       _| N                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o
nnul/usr/local/clang/include/absl/container/internal/btree_container.hl:
509      :| 47                     ^:
 note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
In file included from /usr/local/clang/include/absl/container/internal/common.hs2/s2wedge_relations.cc::3118::
9In file included from :../src/s2/s2wedge_relations.h :24note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
../src/s2/s2point.h:25:
   In file included from 31../src/s2/util/coding/coder.h | :#36d:
eIn file included from f../src/s2/base/casts.hi:n36e:
 In file included from A../src/s2/base/logging.hB:S21L:
_In file included from I/usr/local/clang/include/absl/log/check.hN:T37E:
RIn file included from N/usr/local/clang/include/absl/log/internal/check_impl.hA:L21_:
I/usr/local/clang/include/absl/log/internal/check_op.hF:_451t:r1u:e (warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
_sa  t451i | sAfBiSeLd_,L O.G._.I)N TiEfR_NsAaLt_iDsEfFiIeNdE
_      M| A        ^K
E_CHECK_OP_STRING_In file included from Es2/s2shapeutil_coding.ccX:T28E:
RIn file included from N../src/s2/s2lax_polygon_shape.h(:b36o:
oIn file included from l../src/s2/s2polygon.h):;34
:
      In file included from | ../src/s2/mutable_s2shape_index.h^:
30:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::44967::
31/usr/local/clang/include/absl/container/internal/btree_container.h:: 574note: :expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'3
: warning:   'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]449
 |   ex  t574e | r n  AtBeSmLp_lIaNtTeE RcNoAnLs_tX (cihnasre*r ta_bosrl__ansosningunl,l  iMnaskeerCth_eocrk_OapsSstirginn_gh(i n t _\i
m      p| l                              ^,
 c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :& ,note:  expanded from macro 'absl_nonnull'&
&,  
241       | | #  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d
efi  n575e |   a b s l _ n o n n u l l   _ N o n nturlule
,       | t                     ^r
ue, conIn file included from ss2/s2wedge_relations.cct:_18i:
tIn file included from e../src/s2/s2wedge_relations.hr:a24t:
oIn file included from r../src/s2/s2point.h(:h25:
iIn file included from n../src/s2/util/coding/coder.ht:)36 :
AIn file included from B../src/s2/base/casts.hS:L36_:
IIn file included from N../src/s2/base/logging.hT:E21R:
NIn file included from A/usr/local/clang/include/absl/log/check.hL:_37C:
OIn file included from M/usr/local/clang/include/absl/log/internal/check_impl.hM:A21):
;/usr/local/clang/include/absl/log/internal/check_op.h
:      451| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~1
: warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
511:/usr/local/clang/include/absl/log/internal/check_op.h47::450 :note: 25expanded from macro 'ABSL_INTERNAL_X':
 note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'  
511 |    450  |              x ,A BxS,L _cIoNnTsEtR NcAhLa_rA*T TaRbIsBlU_TnEo_nCnAuPlTlU)R
E      D| _                        ^B
Y(/usr/local/clang/include/absl/base/nullability.ht:h241i:s22):) )note:  expanded from macro 'absl_nonnull' 
    241  |  # d e f i n e   a b s l _ nIn file included from  o s2/util/coding/coder.cc n: n 19u\:
l
In file included from l      ../src/s2/util/coding/coder.h | :_                                              ^~~~40N
:
oIn file included from n../src/s2/util/coding/varint.hn:u44l:
lIn file included from 
../src/s2/util/bits/bits.h      :| 21                     ^:

In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint1In file included from 6s2/s2wedge_relations.cc_:t18 :
UIn file included from n../src/s2/s2wedge_relations.ha:l24i:
gIn file included from n../src/s2/s2point.he:d25L:
oIn file included from a../src/s2/util/coding/coder.hd:1366:
(In file included from c../src/s2/base/casts.ho:n36s:
tIn file included from  ../src/s2/base/logging.hv:o21i:
dIn file included from */usr/local/clang/include/absl/log/check.h :a37b:
sIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h_:n21o:
n/usr/local/clang/include/absl/log/internal/check_op.hn:u452l:l1 :p )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{

      |                                             ^  
452 | A/usr/local/clang/include/absl/base/nullability.hB:S241L:_22L:O Gnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fDiEnFeI NaEb_sMlA_KnEo_nCnHuElClK __ONPo_nSnTuRlIlN
G      _| E                     ^X
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc/usr/local/clang/include/absl/strings/cord.h::2982:
:
In file included from In file included from ../src/s2/s2edge_crosser.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::2323:
:
In file included from In file included from ../src/s2/s2edge_crossings.h/usr/local/clang/include/absl/crc/crc32c.h::4732:
:
In file included from In file included from ../src/s2/s2predicates.h/usr/local/clang/include/absl/strings/str_format.h::5584:
:
In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/strings/internal/str_format/bind.h::40143:
:11/usr/local/clang/include/absl/flags/commandlineflag.h:: 163:warning: 56'enable_if' is a clang extension [-Wgcc-compat]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  143 |    163  |      b o o l   PeanrasbelFer_oimf((asbtsrl_:f:osrtmraitn_gi_nvtieerwn avla:l:uEen,s usrtedC:o:nssttreixnpgr*( sa)b,s l"_cnoonnsntuelxlp re rtrroarp)";)
,      
|                                                              ^| 
          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:149:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  149 |       __attribute__((enable_if(str_format_internalIn file included from :s2/s2shapeutil_visit_crossing_edge_pairs.cc::E29n:
sIn file included from u../src/s2/s2edge_crosser.hr:e23C:
oIn file included from n../src/s2/s2edge_crossings.hs:t47e:
xIn file included from p../src/s2/s2predicates.hr:(55s:
)In file included from ,/usr/local/clang/include/absl/flags/flag.h
:      40| :
                     ^/usr/local/clang/include/absl/flags/commandlineflag.h
:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* abs/usr/local/clang/include/absl/strings/internal/str_format/bind.hl:_158n:o22n:n uwarning: l'enable_if' is a clang extension [-Wgcc-compat]l
 dst  )158  | c o n s t   =_ _0a;t
t      r| i                          ^b
ut/usr/local/clang/include/absl/base/nullability.he:_241_:(22(:e nnote: aexpanded from macro 'absl_nonnull'b
le  _241i | f#(dVeafliindeF oarbmsalt_Inmopnln<uAlrlg s_.N.o.n>n(usl)l,
       "| b                     ^a
d format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
TERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | /usr/local/clang/include/absl/container/internal/btree_container.h#d:e577f:i3n:e  awarning: bpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
l_non  n577u | l l  A_BNSoLn_nIuNlTlE
R      N| A                     ^L
_X(insert_oIn file included from rs2/s2wedge_relations.cc_:a18s:
sIn file included from i../src/s2/s2wedge_relations.hg:n24,:
 In file included from i../src/s2/s2point.hn:s25e:
rIn file included from t../src/s2/util/coding/coder.h_:o36r:
_In file included from a../src/s2/base/casts.hs:s36i:
gIn file included from n../src/s2/base/logging.h_:h21i:
nIn file included from t/usr/local/clang/include/absl/log/check.h_:i37m:
pIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h,: 21&:
&/usr/local/clang/include/absl/log/internal/check_op.h,: 453c:o1n:s twarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
,
/usr/local/clang/include/absl/log/internal/check_op.h      :| 450  ^:
25: note: /usr/local/clang/include/absl/container/internal/btree_container.hexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
509:52  :450  | note:  expanded from macro 'ABSL_INTERNAL_X' 
      x509, |   x ,   c o n s t   cAhBaSrL*_ IaNbTsElR_NnAoLn_nAuTlTlR)I
B      U| T                        ^E
_C/usr/local/clang/include/absl/base/nullability.hA:P241T:U22R:E Dnote: _expanded from macro 'absl_nonnull'B
Y(  t241h | i#sd)e)f,i n e   a b s l _ n o n n u l l   _ N o n n u l l\

            | |                      ^                                                   ^

/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNIn file included from As2/s2wedge_relations.ccL:_18I:
FIn file included from _../src/s2/s2wedge_relations.hf:a24l:
sIn file included from e../src/s2/s2point.h(:i25f:
_In file included from s../src/s2/util/coding/coder.ha:t36i:
sIn file included from fIn file included from ../src/s2/base/casts.his2/s2shapeutil_visit_crossing_edge_pairs.cc:e:d3629,:
:
 In file included from In file included from .../src/s2/base/logging.h.../src/s2/s2edge_crosser.h:.:21)23:
 :
In file included from _In file included from /usr/local/clang/include/absl/log/check.h_../src/s2/s2edge_crossings.h:V:A3747_:
:
AIn file included from In file included from R/usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/s2predicates.hG::S2155_:
:
_In file included from /usr/local/clang/include/absl/log/internal/check_op.h
/usr/local/clang/include/absl/flags/flag.h:      :454| 42:        ^:
1
In file included from :/usr/local/clang/include/absl/flags/internal/flag.h :30warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/call_once.h:52:  24454: |  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]SIn file included from 
Ls2/s2shapeutil_coding.cc_:L28O   G:
52_In file included from  | I../src/s2/s2lax_polygon_shape.hNsT:EtR36Nd:
:AIn file included from L:_../src/s2/s2polygon.haDt:EoF34mI:
NiIn file included from Ec../src/s2/mutable_s2shape_index.h<_:Mu30Ai:
KnIn file included from tE3/usr/local/clang/include/absl/container/btree_map.h2_:C_67tH:
E>/usr/local/clang/include/absl/container/internal/btree_container.hC*:K 577a_:Ob3sP:_l _SnTowarning: nRpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]nIu
NlGl_   EC577Xo | nT EtR Nr(ofAlBWSolLora_dI(tN)
T;      
E|       R                       ^| N^
A
L_/usr/local/clang/include/absl/base/nullability.hX/usr/local/clang/include/absl/log/internal/check_op.h(::i241449n::s22e31r:t: _ note: onote: expanded from macro 'absl_nonnull'rexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
_
a  s241  s | 449i# | d ge nef,x tiienrsnne e tarebtsm_lop_lran_otaensn sciounlglsn __tNh ocnhnairu*nlt l_
aib      sml| _                     ^pn
oln,n u&l&l,  McaoknesCth In file included from e&cs2/s2shapeutil_visit_crossing_edge_pairs.cck,O:p
S29t      r:
i| In file included from n  ^../src/s2/s2edge_crosser.hg
:(23/usr/local/clang/include/absl/container/internal/btree_container.h :
 :In file included from  511../src/s2/s2edge_crossings.h\:
:52      47:| :
                              ^ In file included from 
../src/s2/s2predicates.hnote: :/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_INTERNAL_X'55:
:
241In file included from :/usr/local/clang/include/absl/flags/flag.h22  ::51142  | :
note:  In file included from expanded from macro 'absl_nonnull' /usr/local/clang/include/absl/flags/internal/flag.h
 : 30   :
 241/usr/local/clang/include/absl/base/call_once.h  | : #53 d:e f22iAn:BeS  Lawarning: b_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]sI
lN_Tn   oEn53nR | Nu Al Ll _  a_bNAosTln:nTu:RloIlnB
cU      Te| _Ef                     ^_l
aCgA*P TaUbIn file included from Rss2/s2wedge_relations.cclE_D:n_o18nB:
nYuIn file included from (lt../src/s2/s2wedge_relations.hlh :ifs24l):
a)gIn file included from ));../src/s2/s2point.h
 :       25|                       ^:
 
 In file included from  ../src/s2/util/coding/coder.h/usr/local/clang/include/absl/base/nullability.h :: 36241 :
 :In file included from  22../src/s2/base/casts.h ::   36note:  expanded from macro 'absl_nonnull':
 
In file included from  ../src/s2/base/logging.h   :241 21 |  #:
 dIn file included from e /usr/local/clang/include/absl/log/check.h f:i 37\n:

eIn file included from        a/usr/local/clang/include/absl/log/internal/check_impl.h| b:                                                   ^s21lIn file included from 
:
_s2/s2shapeutil_contains_brute_force.cc/usr/local/clang/include/absl/log/internal/check_op.hn/usr/local/clang/include/absl/container/internal/common.ho:::n18n45432:
u:l:lIn file included from  19../src/s2/s2shapeutil_contains_brute_force.h_:N:: o 21warning: n:
nnote: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from umacro 'ABSL_INTERNAL_IF_false' defined herel
l../src/s2/s2point.h

/usr/local/clang/include/absl/log/internal/check_op.h:      :   27| 45032:
                     ^: | In file included from 
25#../src/s2/s2coder.hd::e 23f:
note: iIn file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n/usr/local/clang/include/absl/status/status.he
: 67A  :
B450In file included from S | /usr/local/clang/include/absl/status/internal/status_internal.h L: _29 I:
N T /usr/local/clang/include/absl/strings/cord.h E:xR109,N: Ax53L,_: I cFwarning: _otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]fn
satl sce  h(109ai | rfv*_ osaibadst liC_sonfpoinyenCduo,lr ld.)T
.o      .S| )t                        ^ r_
i_n/usr/local/clang/include/absl/base/nullability.hgV:(A241c_:oA22nR:sG tSnote:  _expanded from macro 'absl_nonnull'C_
o
r        d| 241In file included from &        ^ | s2/s2shapeutil_visit_crossing_edge_pairs.cc 
#:dse29fri:
nceIn file included from , ../src/s2/s2edge_crosser.h a:sb23st:
ld_In file included from n:o../src/s2/s2edge_crossings.h:n:ns47ut:
lrlIn file included from  i_../src/s2/s2predicates.hnN:go55*n:
 nIn file included from ual/usr/local/clang/include/absl/flags/flag.hlb
:s      42l| :
                     ^_In file included from 
n/usr/local/clang/include/absl/flags/internal/flag.ho:n30n:
u/usr/local/clang/include/absl/base/call_once.hl:l96 :d33s:t )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                     ^
   96 |  In file included from /usr/local/clang/include/absl/base/nullability.h s2/s2wedge_relations.cc:f:241r18i::
e22nIn file included from :d../src/s2/s2wedge_relations.h  s:tnote: 24dexpanded from macro 'absl_nonnull'::

:In file included from a../src/s2/s2point.h  t:241o25 | m:
#iIn file included from cd<eufiinnte3 2a_bts>l*_ naobnsnlu_lnlo n_nNuolnln ublals
e      _| i                     ^n
ternal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2shapeutil_contains_brute_force.cc
:18  :
241In file included from  | ../src/s2/s2shapeutil_contains_brute_force.h#:d21e:
fIn file included from i../src/s2/s2point.hn:e27 :
aIn file included from b../src/s2/s2coder.hs:l23_:
nIn file included from o/usr/local/clang/include/absl/status/status.hn:n67uIn file included from :
ls2/s2shapeutil_coding.cclIn file included from : /usr/local/clang/include/absl/status/internal/status_internal.h28_:N:
29oIn file included from :
n../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/strings/cord.hn:u:l36l110:

:In file included from       55../src/s2/s2polygon.h| :                     ^: 
34warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h  In file included from :110s2/s2shapeutil_visit_crossing_edge_pairs.cc67 | ::
v29/usr/local/clang/include/absl/container/internal/btree_container.ho:
:iIn file included from 579d../src/s2/s2edge_crosser.h: :A323p:p:
 eIn file included from warning: n../src/s2/s2edge_crossings.hpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d:
C47o:
rIn file included from   d../src/s2/s2predicates.h579T: | o55S :
t In file included from rA/usr/local/clang/include/absl/flags/flag.hiB:nS42Lg_:
(IIn file included from cN/usr/local/clang/include/absl/flags/internal/flag.hToE:RnN30sA:
Lt/usr/local/clang/include/absl/base/call_once.h_ :XC(97oi:rn18sde:&r t warning: _stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]orr
c_,a    s97ssi | t gdn :,  :i s nts eornrictne__ogrf*l_ aaagsbs*s ila_bgsnlno__nhnniunoltnln_ iumldlps ltf,l)a ;g&)
&;      
,|                                                              ^c| o
n                 ^s
t/usr/local/clang/include/absl/base/nullability.h :/usr/local/clang/include/absl/base/nullability.h&241,:
:241      22:| :22  ^ :
 note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree_container.h

:509  :  24152241 | #d | e:f# idnote: neefexpanded from macro 'ABSL_INTERNAL_X' ia
bnsel   _509naob | n ns u ll l  __ N n oonnn unl lA uBl_SlLN_
IoNn      TnEu| lRl                     ^
N
      A| L                     ^_
ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, .In file included from .s2/s2shapeutil_visit_crossing_edge_pairs.cc.:)29 :
_In file included from _../src/s2/s2edge_crosser.hV:A23_:
AIn file included from R../src/s2/s2edge_crossings.hG:S47_:
_In file included from 
../src/s2/s2predicates.h      :| 55        ^:

In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111In file included from :s2/s2shapeutil_coding.cc40::28 :
In file included from warning: ../src/s2/s2lax_polygon_shape.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
36:
In file included from ../src/s2/s2polygon.h:  34111:
 | In file included from v../src/s2/mutable_s2shape_index.ho:i30d:
 In file included from L/usr/local/clang/include/absl/container/btree_map.ho:w67L:
e/usr/local/clang/include/absl/container/internal/btree_container.hv:e579l:C3a:l lwarning: Opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ce(  a579b | s l :A:BoSnLc_eI_Nflag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friIn file included from es2/s2shapeutil_visit_crossing_edge_pairs.ccn:d29 :
vIn file included from o../src/s2/s2edge_crosser.hi:d23 :
CIn file included from o../src/s2/s2edge_crossings.hp:y47C:
oIn file included from r../src/s2/s2predicates.hd:T55o:
SIn file included from t/usr/local/clang/include/absl/flags/flag.hr:i42n:
gIn file included from (/usr/local/clang/include/absl/flags/internal/flag.hc:o30n:
s/usr/local/clang/include/absl/base/call_once.ht: 153C:o41r:d &warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
rc,   s153t | d : : s tCrailnlgO*n caebIsmlp_ln(osntndu:l:la tdosmti)c;<
u      i| n                                                             ^t
32_/usr/local/clang/include/absl/base/nullability.ht:>241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle fcionnet raobls,l
_      n| o                                        ^n
nul/usr/local/clang/include/absl/base/nullability.hl: 241_:N22o:n nnote: uexpanded from macro 'absl_nonnull'l
l
        241|  |                      ^#
define absl_nonnull _Nonnull
      | In file included from                      ^s2/s2shapeutil_contains_brute_force.cc
:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                               In file included from   s2/util/coding/coder.cc :s19t:
dIn file included from :../src/s2/util/coding/coder.h::s40t:
rIn file included from i../src/s2/util/coding/varint.hn:g44*:
 In file included from a../src/s2/util/bits/bits.hb:s21l:
_In file included from n/usr/local/clang/include/absl/numeric/bits.ho:n52n:
uIn file included from l/usr/local/clang/include/absl/base/internal/endian.hl: 26d:
s/usr/local/clang/include/absl/base/internal/unaligned_access.ht:)45;:
45      :|                                                ^warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:   2245: |  inote: nexpanded from macro 'absl_nonnull'l
in  e241  | u#idnetfi3n2e_ ta bUsnla_lniognnneudlLlo a_dN3o2n(ncuolnls
t       | v                     ^o
id* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_typeIn file included from *s2/util/coding/coder.cc :a19b:
sIn file included from l../src/s2/util/coding/coder.h_:n40o:
nIn file included from n../src/s2/util/coding/varint.hu:l44l:
;In file included from 
../src/s2/util/bits/bits.h      :| 21                                      ^:

In file included from /usr/local/clang/include/absl/numeric/bits.h:52/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/base/internal/endian.h::2226::
 /usr/local/clang/include/absl/base/internal/unaligned_access.hnote: :expanded from macro 'absl_nonnull'51
:45:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efi   n51e |  ianblsiln_en ouninnutl6l4 __tN oUnnnaullilg
n      e| d                     ^L
oad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     In file included from es2/util/coding/coder.ccx:p19l:
iIn file included from c../src/s2/util/coding/coder.hi:t40 :
CIn file included from h../src/s2/util/coding/varint.hu:n44k:
IIn file included from t../src/s2/util/bits/bits.he:r21a:
tIn file included from o/usr/local/clang/include/absl/numeric/bits.hr:(52c:
oIn file included from r/usr/local/clang/include/absl/base/internal/endian.hd:_26i:
n/usr/local/clang/include/absl/base/internal/unaligned_access.ht:e57r:n36a:l :warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
ord   R57e | pi*n laibnsel _vnooindn uUlnla ltirgenee)d;S
t      o| r                                                   ^e
16/usr/local/clang/include/absl/base/nullability.h(:v241o:i22d:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ep ,a busiln_tn1o6n_ntu lvl)  _{N
o      n| n                                   ^u
ll/usr/local/clang/include/absl/base/nullability.h
:      241| :                     ^22
: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2shapeutil_contains_brute_force.ccl:l18 :
_In file included from N../src/s2/s2shapeutil_contains_brute_force.ho:n21n:
uIn file included from l../src/s2/s2point.hl:
27      :
| In file included from                      ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(consIn file included from ts2/util/coding/coder.cc :C19o:
rIn file included from d../src/s2/util/coding/coder.h*: 40a:
bIn file included from s../src/s2/util/coding/varint.hl:_44n:
oIn file included from n../src/s2/util/bits/bits.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/numeric/bits.hc:o52r:
dIn file included from )/usr/local/clang/include/absl/base/internal/endian.h;:
26      :
| /usr/local/clang/include/absl/base/internal/unaligned_access.h                                       ^:
61:36/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'   
61 |   i241n | l#idneef ivnoei da bUsnla_lniognnneudlSlt o_rNeo3n2n(uvloli
d      *|                       ^a
bsl_nonnull p, uint32_tIn file included from  s2/s2shapeutil_contains_brute_force.ccv:)18 :
{In file included from 
../src/s2/s2shapeutil_contains_brute_force.h      :| 21                                   ^:

In file included from ../src/s2/s2point.h:/usr/local/clang/include/absl/base/nullability.h27::
241In file included from :../src/s2/s2coder.h22::23 :
In file included from note: /usr/local/clang/include/absl/status/status.hexpanded from macro 'absl_nonnull':
67:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h241: | 29#:
d/usr/local/clang/include/absl/strings/cord.he:f507i:n43e:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o507n | n u l l  v_oNiodn nIunlilt
T      r| e                     ^e
(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/util/coding/coder.ccexpanded from macro 'absl_nonnull':
19:
In file included from   ../src/s2/util/coding/coder.h241: | 40#:
dIn file included from e../src/s2/util/coding/varint.hf:i44n:
eIn file included from  ../src/s2/util/bits/bits.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/numeric/bits.hn:o52n:
nIn file included from u/usr/local/clang/include/absl/base/internal/endian.hl:l26 :
_/usr/local/clang/include/absl/base/internal/unaligned_access.hN:o65n:n36u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t In file included from vs2/s2shapeutil_contains_brute_force.cc): 18{:

In file included from       ../src/s2/s2shapeutil_contains_brute_force.h| :                                   ^21
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/base/nullability.h::27241:
:In file included from 22../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h | :#29d:
e/usr/local/clang/include/absl/strings/cord.hf:i525n:e35 :a bwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
_non  n525u | l l   _ Naobnsnlu:l:lc
o      r| d                     ^_
internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:29:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:29:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _../src/s2/util/coding/coder.hNonnT:u36lE:
lIn file included from R
N../src/s2/base/casts.hA      :L| _                     ^36X
(:
iIn file included from n../src/s2/base/logging.hs:e21r:
tIn file included from _/usr/local/clang/include/absl/log/check.ho:r37_:
aIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hs:i21g:
n,/usr/local/clang/include/absl/log/internal/check_op.h :i455n:s1e:r twarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
r_assi  g455n | _AhBiSnLt__LiOmGp_lI,N T&E&R,N AcLo_nDsEtF I&N,E
_      M| A  ^K
E_CH/usr/local/clang/include/absl/container/internal/btree_container.hEIn file included from :Cs2/s2shapeutil_visit_crossing_edge_pairs.cc511K::_2952O:
P:In file included from _ S../src/s2/s2edge_crosser.hnote: T:expanded from macro 'ABSL_INTERNAL_X'R23
I:
NIn file included from G../src/s2/s2edge_crossings.h_:  E47X511T:
E | RIn file included from  N../src/s2/s2predicates.h (: d55 o:
 uIn file included from  b/usr/local/clang/include/absl/flags/flag.hl e :) ;42 
:
A      In file included from B| /usr/local/clang/include/absl/flags/internal/flag.hS^:L
30_:
I/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/call_once.hN::T449200E::R3140N:A: L note: _warning: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
T
TR  I449  B | 200U  | T vEeo_ixCdtAe PrLnT oUwtRLeEemDvp_leBalYCt(eatl hcliOosnnc)es)(ta )cb hs al r: :* o  anb sc e l_ f_ nl ao ng *n u  l la b  Ms la k_ ne oC hn\neu
lc      kl|  O                                                   ^fp
Sltarg/usr/local/clang/include/absl/container/internal/common.hi,: n31gC:a(9l :l   anote: b\lmacro 'ABSL_INTERNAL_IF_true' defined here
e
      &| &                              ^    f
n31, | 
#      /usr/local/clang/include/absl/base/nullability.hd| :e                                       ^f241
i:n22/usr/local/clang/include/absl/base/nullability.he::  241A:Bnote: 22Sexpanded from macro 'absl_nonnull':L
 _note: I  expanded from macro 'absl_nonnull'N241T
 | E#Rd  Ne241Af | Li#_ndIeF e_aftbirsnule_e(ni ofna_nbssuallt_li nso_fNninounenldlu,l l 
_.N.o      .n| )                     ^n u
ilfl_
s      a| t                     ^i
sfied
      |         ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2shapeutil_coding.cc21::
28/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 455../src/s2/s2lax_polygon_shape.h::136::
 In file included from ../src/s2/s2polygon.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]34
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/mutable_s2shape_index.h::45030::
25In file included from :/usr/local/clang/include/absl/container/btree_map.h :67note: :
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/container/internal/btree_container.h
:579:3  :450  | warning:  'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
    x,   579x | ,   cAoBnSsLt_ IcNhTaErR*N AaLb_sXl(_innosnenrutl_lo)r
_      a| s                        ^s
ig/usr/local/clang/include/absl/base/nullability.hn:,241 :i22n:s enote: rexpanded from macro 'absl_nonnull't
_o  r241_ | a#sdseifginn_eh ianbts_li_mnpoln,n u&l&l,  _cNoonnsntu l&l,

            | |                      ^  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  580 |                   false, true, conIn file included from ss2/s2wedge_relations.cct:_18i:
tIn file included from e../src/s2/s2wedge_relations.hr:a24t:
oIn file included from r../src/s2/s2point.h(:h25i:
nIn file included from t../src/s2/util/coding/coder.h): 36A:
BIn file included from S../src/s2/base/casts.hL:_36I:
NIn file included from T../src/s2/base/logging.hE:R21N:
AIn file included from L/usr/local/clang/include/absl/log/check.h_:C37O:
MIn file included from M/usr/local/clang/include/absl/log/internal/check_impl.hA:)21;:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 456                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
1: warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
511:47:   456note:  | expanded from macro 'ABSL_INTERNAL_X'A
BSL_  L511O | G _ I N T E R N A L _ADBESFLI_NIEN_TMEARKNEA_LC_HAETCTKR_IOBPU_TSET_RCIANPGT_UERXETDE_RBNY((cthhairs));)
)       |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449 : 31 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
      449  |      e x t\e
r      n|                                                ^~~~t
emplate const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2point.h::58125::
3In file included from :../src/s2/util/coding/coder.h :36warning: :
In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/base/casts.h
:36:
In file included from ../src/s2/base/logging.h:  21581:
 | In file included from  /usr/local/clang/include/absl/log/check.h :A37B:
SIn file included from L/usr/local/clang/include/absl/log/internal/check_impl.h_:I21N:
T/usr/local/clang/include/absl/log/internal/check_op.hE:R457N:A1L:_ Xwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
nser  t457_ | oArB_SaLs_sLiOgGn_,I NiTnEsReNrAtL__oDrE_FaIsNsEi_gMnA_KhEi_nCtH_EiCmKp_lO,P _&S&T,R IcNoGn_sEtX T&E,R
N      (| u  ^n
si/usr/local/clang/include/absl/container/internal/btree_container.hg:n509e:d52 :c hnote: aexpanded from macro 'ABSL_INTERNAL_X'r
);
        | 509^ | 
  /usr/local/clang/include/absl/log/internal/check_op.h : 449 : 31 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'A
BSL  _449I | N T EeRxNtAeLr_nA TtTeRmIpBlUaTtEe_ CcAoPnTsUtR EcDh_aBrY*( tahbissl)_)n,o n n u l l   M a k e C h e c k O p S t r i n g (\ 
        | \                                                   ^

      |                               ^/usr/local/clang/include/absl/container/internal/common.h
In file included from :/usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_contains_brute_force.cc31:::241189::
:22In file included from  :../src/s2/s2shapeutil_contains_brute_force.h note: :note: macro 'ABSL_INTERNAL_IF_true' defined here21expanded from macro 'absl_nonnull'
:

In file included from ../src/s2/s2point.h     :3124127 |  | :
##In file included from dd../src/s2/s2coder.hee:ffii23nn:
eeIn file included from   /usr/local/clang/include/absl/status/status.haAb:BsSl67_L:
n_oInIn file included from nNu/usr/local/clang/include/absl/status/internal/status_internal.hlTl: E_29NR:
oN/usr/local/clang/include/absl/strings/cord.hAn:Ln582u_l:lI
37F      :_|                       ^t
warning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
e(ifIn file included from _  ss2/s2wedge_relations.cc582a: | t18 i:
 sIn file included from  f../src/s2/s2wedge_relations.h iee:xd24p,:
l In file included from i.c../src/s2/s2point.h.i:.t)25  :
iCfIn file included from h_../src/s2/util/coding/coder.hus:ant36kiRs:
afIn file included from ni../src/s2/base/casts.hgeed:(
36c      :
o| In file included from         ^n../src/s2/base/logging.h
s:t21 :
CIn file included from o/usr/local/clang/include/absl/log/check.hr:d37*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:s21l:
_In file included from /usr/local/clang/include/absl/log/internal/check_op.hns2/s2shapeutil_coding.cc:o:457n28:n:
1uIn file included from :l../src/s2/s2lax_polygon_shape.h l:warning:  36ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
o
In file included from r/usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2polygon.hd::)450 34:::
 25In file included from In file included from c:os2/s2winding_operation.cc../src/s2/mutable_s2shape_index.h r:d:_note: 1930(expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN':
:
c
In file included from In file included from o../src/s2/s2winding_operation.h/usr/local/clang/include/absl/container/btree_map.h  r::450d2367 | ) :
 :
 In file included from  ../src/s2/s2builder.h/usr/local/clang/include/absl/container/internal/btree_container.h{ } ::
 31x581,       :
:| xIn file included from ,3                                     ^c/usr/local/clang/include/absl/container/flat_hash_set.h:
o:n 43s/usr/local/clang/include/absl/base/nullability.ht:
warning: : In file included from c'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]h241/usr/local/clang/include/absl/container/hash_container_defaults.h
a:r:*2219 :a:
   bIn file included from 581note: s/usr/local/clang/include/absl/container/internal/hash_function_defaults.h | expanded from macro 'absl_nonnull'l: 
 _59An  :
Bo241nIn file included from nS | /usr/local/clang/include/absl/strings/cord.huL#_:ldlI82NeT)E:
Rf
In file included from N/usr/local/clang/include/absl/crc/internal/crc_cord_state.hi      nA:| e                        ^L23 
_:
aXIn file included from /usr/local/clang/include/absl/base/nullability.hb(/usr/local/clang/include/absl/crc/crc32c.hi:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABsSL_lL:_OG32n_:
oIn/usr/local/clang/include/absl/strings/str_format.hNnT:uE115lR:lN52 A:_L N_warning: oDtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]nE
FnIuNlE  l_115
M |       A | K                      ^E 
_ C H EcCoKn_sOtP _sStTrR_IfNoGr_mEaXtT_EiRnNt(ecronnaslt: :aPbasrlIn file included from ss2/s2shapeutil_contains_brute_force.cc:e::d18sF:
toIn file included from rr../src/s2/s2shapeutil_contains_brute_force.him:na21gt:
_BIn file included from va../src/s2/s2point.his:ee27w*:
& In file included from )a../src/s2/s2coder.h;b:
s23      l:
| _In file included from ^n/usr/local/clang/include/absl/status/status.h
o:n67/usr/local/clang/include/absl/log/internal/check_op.hn:
:uIn file included from 449l/usr/local/clang/include/absl/status/internal/status_internal.h:l:31 29:p:
 c/usr/local/clang/include/absl/strings/cord.hnote: ):expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
588
      :| 17                                                   ^  :
449  | warning:  /usr/local/clang/include/absl/base/nullability.h type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:e
241x:t22  e:588r  | nnote:   expanded from macro 'absl_nonnull' t
 e m  pc241lo | an#tsdete  fcCioonnresd t*a  bcashblas_rln*_o nnaonbnusnllul_l nl_o Nncononurnldul_l ;lM

a            k| | e                ^                     ^C
h
ec/usr/local/clang/include/absl/base/nullability.hk:O241p:S22t:r inote: nexpanded from macro 'absl_nonnull'g
(    241  | \#
d      e| f                              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :s2/s2shapeutil_contains_brute_force.cc459::181:
:In file included from  ../src/s2/s2shapeutil_contains_brute_force.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/log/internal/check_op.h::27450:
:In file included from 25../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'/usr/local/clang/include/absl/status/status.h
:67:
  In file included from 450/usr/local/clang/include/absl/status/internal/status_internal.h | : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 641 :x33,:In file included from   s2/s2winding_operation.ccx:,warning: 19 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c:

oIn file included from n../src/s2/s2winding_operation.hs:  t23641 :
c | In file included from h ../src/s2/s2builder.h a: r31*  :
uaIn file included from bs/usr/local/clang/include/absl/container/flat_hash_set.hsi:ln43_gn:
 oIn file included from pn/usr/local/clang/include/absl/container/hash_container_defaults.hon:iu19nl:
lt)In file included from e
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr      : | 59                        ^=:

 In file included from c/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.ho::n24182s::
t22In file included from  :/usr/local/clang/include/absl/crc/internal/crc_cord_state.hc :hnote: 23aexpanded from macro 'absl_nonnull':
r
In file included from */usr/local/clang/include/absl/crc/crc32c.h   :241a32 | b:
#s/usr/local/clang/include/absl/strings/str_format.hdle:_f155ni:on36ne:n  uawarning: lbtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ls
l;_
n      o  n| n155                                ^u | 
l l  /usr/local/clang/include/absl/base/nullability.he_:xN241po:nl22ni:uc linote: lt
expanded from macro 'absl_nonnull'       
F| o                     ^  r
241m | a#tdCeofuinnteC aapbtsulr_en(oinnntu*l laIn file included from  bs2/s2wedge_relations.cc_s:Nl18o_:
nnIn file included from no../src/s2/s2wedge_relations.hun:ln24lu:

lIn file included from       l../src/s2/s2point.h|  :                     ^p25
):
 In file included from :../src/s2/util/coding/coder.h :p36_:
(In file included from p../src/s2/base/casts.h): 36{:
}In file included from 
../src/s2/base/logging.h      :| 21                                   ^:

In file included from /usr/local/clang/include/absl/log/check.h:37/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/check_impl.h::2221::
 /usr/local/clang/include/absl/log/internal/check_op.hnote: :expanded from macro 'absl_nonnull'460
:1:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e460  | aAbBsSlL__nLoOnGn_uIlNlT E_RNNoAnIn file included from Ln_s2/s2shapeutil_contains_brute_force.ccuD:lE18lF:

IIn file included from N      ../src/s2/s2shapeutil_contains_brute_force.hE| :_                     ^21M
:
AIn file included from K../src/s2/s2point.hE:_27C:
HIn file included from E../src/s2/s2coder.hC:K23_:
OIn file included from P/usr/local/clang/include/absl/status/status.h_:S67T:
RIn file included from I/usr/local/clang/include/absl/status/internal/status_internal.hN:G29_:
E/usr/local/clang/include/absl/strings/cord.hXIn file included from :Ts2/s2winding_operation.cc655E:R:19N39(:
:cIn file included from  o../src/s2/s2winding_operation.hwarning: n:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s23t
:
 In file included from c../src/s2/s2builder.hh  :a65531r | :
* In file included from   /usr/local/clang/include/absl/container/flat_hash_set.ha :b 43se:
lxIn file included from _p/usr/local/clang/include/absl/container/hash_container_defaults.hnl:oin19nc:
uiIn file included from ltl/usr/local/clang/include/absl/container/internal/hash_function_defaults.h ):C;59
h:
      aIn file included from | r/usr/local/clang/include/absl/strings/cord.h^I:
t82e:
/usr/local/clang/include/absl/log/internal/check_op.hrIn file included from :a/usr/local/clang/include/absl/crc/internal/crc_cord_state.h449t::o2331r:
:(In file included from  c/usr/local/clang/include/absl/crc/crc32c.hnote: o:expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n32
s:
t/usr/local/clang/include/absl/strings/str_format.h   :449C164 | o: r8 d:e* x warning: tatype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]eb
rsnl   _t164en | mo pn lniauntletl *c  ocnaosbrts dcl)h_
anr      o*| n                                       ^na
ubls/usr/local/clang/include/absl/base/nullability.hll: _241Un:on22nu:ns uenote: ldexpanded from macro 'absl_nonnull'l(
 )M   a{241k  | er#CedhteeufcriknnO epp S_a;tb rsi}ln
_g      n(| o        ^n 
n u\/usr/local/clang/include/absl/base/nullability.hl
:l      241 | :_                              ^22N
:o /usr/local/clang/include/absl/base/nullability.hn:note: n241expanded from macro 'absl_nonnull'u:
l22l:  
 241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.hIn file included from :s2/s2shapeutil_contains_brute_force.cc23::
18In file included from :
../src/s2/s2builder.hIn file included from :../src/s2/s2shapeutil_contains_brute_force.h31::
21In file included from :
/usr/local/clang/include/absl/container/flat_hash_set.hIn file included from :../src/s2/s2point.h43::
27In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2coder.h19::
23In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :/usr/local/clang/include/absl/status/status.h59::
67In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h82:
:In file included from 29/usr/local/clang/include/absl/crc/internal/crc_cord_state.h:
:23/usr/local/clang/include/absl/strings/cord.h:
:In file included from 667/usr/local/clang/include/absl/crc/crc32c.h::4432::
 /usr/local/clang/include/absl/strings/str_format.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]165
:8: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]667
 |     165s | t a tiinct *C oarbds lA_dnvoannncuelAln dpR_e;a
d      (| C       ^h
ar/usr/local/clang/include/absl/base/nullability.hI:t241e:r22a:t onote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bistl,_ nsoinzneu_ltl  n__Nboyntneusl)l;

            | |                      ^                                           ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2winding_operation.cc22::19 :
note: In file included from expanded from macro 'absl_nonnull'../src/s2/s2winding_operation.h
:23:
  In file included from 241../src/s2/s2builder.h | :#31d:
eIn file included from f/usr/local/clang/include/absl/container/flat_hash_set.hi:n43e:
 In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:s19l:
_In file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:n59n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl: 82_:
NIn file included from o/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:n23u:
lIn file included from l/usr/local/clang/include/absl/crc/crc32c.h
:      32| :
                     ^
/usr/local/clang/include/absl/strings/str_format.h:380:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  380 | std::string& StrAppendFormat(std::string* absl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: In file included from expanded from macro 'absl_nonnull's2/s2shapeutil_contains_brute_force.cc
:18:
  In file included from 241../src/s2/s2shapeutil_contains_brute_force.h | :#21definnsert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   truIn file included from e,s2/util/coding/coder.cc :f19a:
lIn file included from s../src/s2/util/coding/coder.he:,40 :
cIn file included from o../src/s2/util/coding/varint.hn:s44t:
_In file included from i../src/s2/util/bits/bits.ht:e21r:
aIn file included from t/usr/local/clang/include/absl/numeric/bits.ho:r52(:
hi/usr/local/clang/include/absl/base/internal/endian.hn:t160): 36A:B Swarning: L_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]I
NTERN  A160L | _iCnOlMiMnAe) ;u
i      n| t                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~1
6_t L/usr/local/clang/include/absl/container/internal/btree_container.ho:a509d:1476:( cnote: oexpanded from macro 'ABSL_INTERNAL_X'n
st vo  i509d | *   a b s l _ n o n nAuBlSlL _pI)N T{E
R      N| A                                   ^L
_ATT/usr/local/clang/include/absl/base/nullability.hR:I241B:U22T:E _note: Cexpanded from macro 'absl_nonnull'A
PT  U241R | E#Dd_eBfYi(nteh iasb)s)l,_ n o n n u l l   _ N o n n u l l 
        |                       ^ 
   \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNIn file included from As2/util/coding/coder.ccL:_19A:
TIn file included from T../src/s2/util/coding/coder.hR:I40B:
UIn file included from T../src/s2/util/coding/varint.hE:_44C:
AIn file included from P../src/s2/util/bits/bits.hT:U21R:
EIn file included from D/usr/local/clang/include/absl/numeric/bits.h_:B52Y:
(/usr/local/clang/include/absl/base/internal/endian.ht:h164i:s27):) )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      164  |  i n l i n e   v o i d   S t o r e\1
6      (| v                                                   ^o
id*/usr/local/clang/include/absl/container/internal/common.h :a32b:s9l:_ nnote: omacro 'ABSL_INTERNAL_IF_false' defined heren
nul   l32  | p#,d eufiinnte1 6A_BtS Lv_)I N{T
E      R| N                          ^A
L_/usr/local/clang/include/absl/base/nullability.hI:F241_:f22a:l snote: eexpanded from macro 'absl_nonnull'(
if  _241s | a#tdiesffiineed ,a b.s.l._)n o_n_nVuAl_lA R_GNSo_n_n
u      l| l        ^

      |                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:40:
In file included from ../src/s2/util/coding/varint.h:44:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241 | #  d241e | f#idneef ianbes la_bnsoln_nnuolnln u_lNlo n_nNuolnln
u      l| l                     ^

      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 460s2/util/coding/coder.cc | :A19B:
SIn file included from L../src/s2/util/coding/coder.h_:L40O:
GIn file included from _../src/s2/util/coding/varint.hI:N44T:
EIn file included from R../src/s2/util/bits/bits.hN:A21L:
_In file included from In file included from D/usr/local/clang/include/absl/numeric/bits.hs2/s2shapeutil_coding.ccE::F5228I:
:
NIn file included from E/usr/local/clang/include/absl/base/internal/endian.h_../src/s2/s2lax_polygon_shape.h:M:A17236K:E:
27_In file included from C:../src/s2/s2polygon.hH E:warning: C34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]K:

_In file included from O../src/s2/mutable_s2shape_index.hP:  _30S172T:
R | IIn file included from iN/usr/local/clang/include/absl/container/btree_map.hGn:l_67Ei:
nXe/usr/local/clang/include/absl/container/internal/btree_container.h T:vEo583Ri:dN3( :cS towarning: onpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]sr
et3 2c(h  va583or | *i d  a*Ab sBalS_bLsn_oInlnN_uTlnEolR)n;Nn
Au      lL| l_                                                                  ^Xp
(,i /usr/local/clang/include/absl/base/nullability.hnu:si241net:3r222t_:_t  onote: vr)expanded from macro 'absl_nonnull'_ 
a{s
  s      i241| g                          ^ | n#
,d e/usr/local/clang/include/absl/base/nullability.hifn:isn241eer :ta22_b:os lrnote: __expanded from macro 'absl_nonnull'nao
sns  niu241lg | ln #_d_hNeifonnitnn_eu ialmlpb
sll      ,_| n                      ^&o
n&n,u lclo n_sNIn file included from tos2/s2wedge_relations.cc n:&n18,u:
l
lIn file included from       
../src/s2/s2wedge_relations.h|       :  ^| 24                     ^
:

In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2point.h::50925::
52In file included from :../src/s2/util/coding/coder.h :36note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/base/casts.h:36:
In file included from   ../src/s2/base/logging.h509: | 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h : 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h : 21A:
B/usr/local/clang/include/absl/log/internal/check_op.hS:L460_:I66N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I BIn file included from note: Us2/util/coding/coder.ccexpanded from macro 'absl_nonnull'T:
E19_  :
C241In file included from A | ../src/s2/util/coding/coder.hP#:Td40Ue:
RfIn file included from iEn../src/s2/util/coding/varint.heD :_a44Bb:
Ys(In file included from lt_../src/s2/util/bits/bits.hhn:io21sn:
)nIn file included from )u/usr/local/clang/include/absl/numeric/bits.h,l :l  52 _:
 N/usr/local/clang/include/absl/base/internal/endian.h o: n176 n:u l36l 
:         | warning:                      ^ type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 
      176 In file included from  |  s2/s2wedge_relations.cc i: n18l i:
 nIn file included from e  ../src/s2/s2wedge_relations.h\u:i
24n      :
t| 6In file included from                                                    ^4../src/s2/s2point.h_
t: 25/usr/local/clang/include/absl/container/internal/common.hL:
:oIn file included from a31../src/s2/util/coding/coder.hd:6:4936(::
c In file included from onote: ../src/s2/base/casts.hnmacro 'ABSL_INTERNAL_IF_true' defined here:s
t36 :
   vIn file included from o31../src/s2/base/logging.hi | d:*#21 d:
eaIn file included from fb/usr/local/clang/include/absl/log/check.his:nl37e_:
n oIn file included from An/usr/local/clang/include/absl/log/internal/check_impl.hnBu:Sl21lL :
_p/usr/local/clang/include/absl/log/internal/check_op.hI):N 460{T:E
1R      :N|  A                                   ^warning: L
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
I/usr/local/clang/include/absl/base/nullability.hF:_241  460t::
 | rAu22In file included from BeS(L:../src/s2/s2point.hi_f _:sLnote: 27expanded from macro 'absl_nonnull'aO:

tGIn file included from i  _../src/s2/s2coder.hIsN241T:f | E23RiN#AdL:
_eedf,iIn file included from D n./usr/local/clang/include/absl/status/status.hEe.:.F I67)aNbE:
 s_In file included from Milf__/usr/local/clang/include/absl/status/internal/status_internal.hAnso:Kant29iEn_:
CsuHl/usr/local/clang/include/absl/strings/cord.hfElC:i K730_e_d:ON
36Po_      S:n| nTuRl         ^Iwarning: NlG

type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_      E
| X                     ^T
ER  N730( | c o n s te xcphlaiIn file included from rcs2/s2shapeutil_coding.cc*i: ta28 b:
sClIn file included from h_../src/s2/s2lax_polygon_shape.han:ro36nRn:
auIn file included from nl../src/s2/s2polygon.hlg):e;34
(:
      cIn file included from | o^../src/s2/mutable_s2shape_index.hn
:In file included from s30/usr/local/clang/include/absl/log/internal/check_op.hs2/util/coding/coder.cct:
:: In file included from 45019C/usr/local/clang/include/absl/container/btree_map.h::
o:25In file included from r67:../src/s2/util/coding/coder.hd:
 :*/usr/local/clang/include/absl/container/internal/btree_container.h40note:  ::
expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'a583In file included from 
b:../src/s2/util/coding/varint.hs3  :l:45044_  | :
nwarning:  In file included from  o'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n../src/s2/util/bits/bits.h 
 n: u 21xl,:
   lIn file included from x583, /usr/local/clang/include/absl/numeric/bits.h |  c: coo52n srt:
AdB /usr/local/clang/include/absl/base/internal/endian.hc)S:h aL180_:Ir:* Nc27 ToE:Rarb NdAswarning: l_L(_type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_cnXo
no(nrid  )unl180 sl | ){ei
n}lri      
tn|       _e                        ^ | vo
r                                   ^_o
i/usr/local/clang/include/absl/base/nullability.had:s/usr/local/clang/include/absl/base/nullability.hs 241S:ti:g241o22rne::,622  4:(note: i vexpanded from macro 'absl_nonnull'oninote: 
sdexpanded from macro 'absl_nonnull'*e  r
 241t  _a | 241ob# | r#sdl__deafniesfonnensuil li nagbps,en l _a_unhbioinsnltnntu_l_6ilm n_4p_oNlotn,n  &vnn&)uu ll{ll

       _      | eN| o                          ^                      ^n
a
nb/usr/local/clang/include/absl/base/nullability.hus:ll241l_:
n22      o:| n                     ^ n
note: uexpanded from macro 'absl_nonnull'l
l   _241N | o#ndneufliln
e       | a                     ^b
sl_In file included from ns2/s2wedge_relations.cco:n18n:
uIn file included from l../src/s2/s2wedge_relations.hl: 24_:
NIn file included from o../src/s2/s2point.hn:n25u:
In file included from lIn file included from ls2/s2shapeutil_contains_brute_force.cc
../src/s2/util/coding/coder.h:      :18| 36                     ^:
:

In file included from In file included from ../src/s2/s2shapeutil_contains_brute_force.h../src/s2/base/casts.h::2136:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/base/logging.h::2721:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/log/check.h::2337:
:
In file included from In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/internal/check_impl.h::6721:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_op.h::29461:
:1/usr/local/clang/include/absl/strings/cord.h:: 736:warning: 17type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
461 | A  B736S | L _ L O Gc_oInNsTtE RCNoArLd_*D EaFbIsNlE__nMoAnKnEu_lClH EcCoKr_dO_P;_
S      T| R                ^I
NG_EX/usr/local/clang/include/absl/base/nullability.hT:E241R:N22(:
       | note: ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/log/internal/check_op.h  :241449 | :#31d:e fnote: iexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'n
e a  b449s | l _ neoxntneurIn file included from lns2/s2winding_operation.cc lt:e m19p:
l_aIn file included from Nto../src/s2/s2winding_operation.hen:n u23cl:
olIn file included from n
s../src/s2/s2builder.h      t: | 31                     ^c:
h
In file included from a/usr/local/clang/include/absl/container/flat_hash_set.hr:*43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
lIn file included from l/usr/local/clang/include/absl/strings/cord.h :M82a:
kIn file included from e/usr/local/clang/include/absl/crc/internal/crc_cord_state.hC:h23e:
cIn file included from k/usr/local/clang/include/absl/crc/crc32c.hO:p32S:
t/usr/local/clang/include/absl/strings/str_format.hr:i440n:g24(:   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]\

      |                               ^
  440/usr/local/clang/include/absl/base/nullability.h | :i241n:t22 :F Pnote: rexpanded from macro 'absl_nonnull'i
nt  F241( | s#tdde:f:iFnIeL Ea*b salb_snlo_nnnounlnlu l_lN oonuntuplult
,       | c                     ^o
nst FIn file included from os2/s2wedge_relations.ccIn file included from r:s2/s2shapeutil_contains_brute_force.ccm18:a:
18tIn file included from :
S../src/s2/s2wedge_relations.hIn file included from p:../src/s2/s2shapeutil_contains_brute_force.he24:c:
21<In file included from :
A../src/s2/s2point.hIn file included from r:../src/s2/s2point.hg25:s:
.27In file included from .:
../src/s2/util/coding/coder.h.In file included from :>../src/s2/s2coder.h36&::
 23In file included from f:
o../src/s2/base/casts.hrIn file included from :m/usr/local/clang/include/absl/status/status.h36a::
t67,In file included from :

../src/s2/base/logging.hIn file included from       :/usr/local/clang/include/absl/status/internal/status_internal.h| 21:                       ^:
29
In file included from :
/usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h37:::
795241In file included from ::/usr/local/clang/include/absl/log/internal/check_impl.h4322:::21  :
warning: note: /usr/local/clang/include/absl/log/internal/check_op.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull':

462:24  :  241 795 | warning:  | #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] d
 effr  iie462nn | d  e  v a ocboisdnls t_ AsbnsioglnnFnoerumdl altc Fhl_aurNso*hn (naaubbsslll_l:n
:oC      nonrudl*l | a                     ^)b;
s
l      _| n                       ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22c:o rnote: dexpanded from macro 'absl_nonnull',

        | 241                                          ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_lnIn file included from 
os2/s2winding_operation.cc      n:n| 19                     ^u:
l
In file included from l../src/s2/s2winding_operation.h :_23N:
oIn file included from n../src/s2/s2builder.hIn file included from n:us2/s2wedge_relations.cc31l::
l18In file included from 
:
/usr/local/clang/include/absl/container/flat_hash_set.h      In file included from :| ../src/s2/s2wedge_relations.h43                     ^::

24In file included from :
/usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :../src/s2/s2point.h19::
25In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/util/coding/coder.h59::
36In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/base/casts.h82::
36In file included from :
/usr/local/clang/include/absl/crc/internal/crc_cord_state.hIn file included from :../src/s2/base/logging.h23::
21In file included from :
/usr/local/clang/include/absl/crc/crc32c.hIn file included from :/usr/local/clang/include/absl/log/check.h32::
37:
/usr/local/clang/include/absl/strings/str_format.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h469::2120:
:/usr/local/clang/include/absl/log/internal/check_op.h :462warning: :24type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* absl_nonnull output, std::size_t size,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82In file included from :
s2/s2shapeutil_contains_brute_force.ccIn file included from :/usr/local/clang/include/absl/crc/internal/crc_cord_state.h18::
23In file included from :
../src/s2/s2shapeutil_contains_brute_force.hIn file included from :/usr/local/clang/include/absl/crc/crc32c.h21::
32In file included from :
../src/s2/s2point.h:/usr/local/clang/include/absl/strings/str_format.h27::
503In file included from :../src/s2/s2coder.h20::23 :
In file included from warning: /usr/local/clang/include/absl/status/status.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29503:
 | /usr/local/clang/include/absl/strings/cord.h : 898F:o27r:m awarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]R
awSi  n898k | ( T *f raibesnld_ ncoonnnsutl lC orradwz)I n f/o/*  NaObLsIlN_Tn
u      l| l                   ^a
ble/usr/local/clang/include/absl/base/nullability.h :G241e:t22C:o rnote: dexpanded from macro 'absl_nonnull'z
In  f241o | F#odreTfeisntei nagb(s
l      _| n                          ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l257l: 23_:N onote: nexpanded from macro 'absl_nullable'n
ul  l257
 |       #| d                     ^e
fine absl_nullable _Nullable
      |                       ^
, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3In file included from :s2/s2wedge_relations.cc :18warning: :
passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h  :58625 | :
 In file included from  ../src/s2/util/coding/coder.hA:B36S:
LIn file included from _../src/s2/base/casts.hI:N36T:
EIn file included from R../src/s2/base/logging.hN:A21L:
_In file included from X/usr/local/clang/include/absl/log/check.h(:i37n:
sIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hr:t21_:
o/usr/local/clang/include/absl/log/internal/check_op.hr:_461a:s1s:i gwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 in  s461e | rAtB_SoLr__LaOsGs_iIgNnT_EhRiNnAtL__iDmEpFlI,N E&_&M,A K&E&_,C HfEaClKs_eO,P
_      S| T  ^R
IN/usr/local/clang/include/absl/container/internal/btree_container.hG:_509E:X52T:E Rnote: Nexpanded from macro 'ABSL_INTERNAL_X'(

      | ^  
509 |  /usr/local/clang/include/absl/log/internal/check_op.h : 450 : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
AB  S450L | _ I N T E R NxA,L _xA,T TcRoInBsUtT Ec_hCaArP*T UaRbEsDl__BnYo(ntnhuilsl)))
,       |                          ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n\e
       a| b                                                   ^s
l_/usr/local/clang/include/absl/container/internal/common.hn:o32n:n9u:l lnote:  macro 'ABSL_INTERNAL_IF_false' defined here_
Non   n32u | l#ld
e      f| i                     ^n
e ABSL_INTERNAL_IF_false(if_satisfiIn file included from es2/s2wedge_relations.ccd:,18 :
.In file included from .../src/s2/s2wedge_relations.h.:)24 :
_In file included from _../src/s2/s2point.hV:A25_:
AIn file included from R../src/s2/util/coding/coder.hG:S36_:
_In file included from 
../src/s2/base/casts.h      :| 36        ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2shapeutil_coding.cc:/usr/local/clang/include/absl/log/internal/check_op.h28::
463In file included from :../src/s2/s2lax_polygon_shape.h1::36 :
In file included from warning: ../src/s2/s2polygon.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
34:
In file included from ../src/s2/mutable_s2shape_index.h:  30463:
 | In file included from A/usr/local/clang/include/absl/container/btree_map.hB:S67L:
_/usr/local/clang/include/absl/container/internal/btree_container.hL:O586G:_3I:N Twarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]R
NAL  _586D | E F IANBES_LM_AIKNET_ECRHNEACLK__XO(Pi_nSsTeRrItN_Go_rE_XaTsEsRiNg(n
,       | i^n
se/usr/local/clang/include/absl/log/internal/check_op.hr:t449_:o31r:_ anote: sexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN's
ign  _449h | i n te_xitmeprln,  t&e&m,p l&a&t,e  fcaolnsset, 
c      h| a  ^r
* /usr/local/clang/include/absl/container/internal/btree_container.ha:b511s:l52_:n onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ul  l511  | M a k e C h e c k O pASBtSrLi_nIgN(T E R N\A
L      _| A                              ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B241U:T22E:_ Cnote: Aexpanded from macro 'absl_nonnull'PIn file included from 
TIn file included from s2/s2shapeutil_contains_brute_force.ccU  s2/util/coding/coder.cc:R241:18E | 19#:
D:
dIn file included from e_fBiYnIn file included from e../src/s2/s2shapeutil_contains_brute_force.h (../src/s2/util/coding/coder.h:atb:21hs40l:
_in:
In file included from soIn file included from n../src/s2/s2point.h)../src/s2/util/coding/varint.hn:u):)27l44 :
 l:
 In file included from _ In file included from  ../src/s2/s2coder.hN../src/s2/util/bits/bits.ho n:n: 23 u l21:
 l:

In file included from  In file included from       /usr/local/clang/include/absl/status/status.h /usr/local/clang/include/absl/numeric/bits.h| :                     ^ :67
 52:
 :
 In file included from /usr/local/clang/include/absl/base/internal/endian.h /usr/local/clang/include/absl/status/internal/status_internal.h In file included from :: s2/s2wedge_relations.cc25029 :::
 1836 /usr/local/clang/include/absl/strings/cord.h:
: : In file included from  927 ../src/s2/s2wedge_relations.h:warning: \:43type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
24:
      :
 | In file included from warning:                                                    ^../src/s2/s2point.h  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
:250
/usr/local/clang/include/absl/container/internal/common.h25 | ::
i32In file included from   n:../src/s2/util/coding/coder.h927l9: | i:36 n e:
  note: In file included from u macro 'ABSL_INTERNAL_IF_false' defined here../src/s2/base/casts.hi n
t: 1   636 32_:
  | tIn file included from  # ../src/s2/base/logging.hL oda: ed211 6f:
 (iIn file included from n ec /usr/local/clang/include/absl/log/check.h oA: nB37S Ls_:
 tI In file included from v oNi/usr/local/clang/include/absl/log/internal/check_impl.hd *T:E R 21a N:
Ab s/usr/local/clang/include/absl/log/internal/check_op.hL _l: I_F464 n_ofn:n ua26 lll:  ps  )ewarning: ( i type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]{ f 

_       s  C| a464o                                   ^rt | i
sdf iRe/usr/local/clang/include/absl/base/nullability.hd e:, p241  *:.c o22n.a.:sbt)  us note: nls_expanded from macro 'absl_nonnull'__ing
Vun  Al_e241dl A | Rac#hGabdSerfl_*_ie 
anbe       s ra| blse        ^_lp_
n)on;on
nn      nu| ul                                          ^lll
 )_;N/usr/local/clang/include/absl/base/nullability.h
o:n      257n| :                         ^u23
l:l 
/usr/local/clang/include/absl/base/nullability.h      note: :| expanded from macro 'absl_nullable'241
:22:                     ^ 
  note: 257expanded from macro 'absl_nonnull' | 
#d  e241f | i#ndee faibnsel _anbuslll_anbolnen u_lNlu l_lNaobnlneu
l      l| 
                      ^      
|                      ^
In file included from s2/util/coding/coder.cc:19:
In file included from ../src/s2/util/coding/coder.h:40In file included from :
s2/s2wedge_relations.ccIn file included from :../src/s2/util/coding/varint.h18::
44In file included from :
../src/s2/s2wedge_relations.hIn file included from :../src/s2/util/bits/bits.h24::
21In file included from :
../src/s2/s2point.hIn file included from :/usr/local/clang/include/absl/numeric/bits.h25::
52In file included from :
../src/s2/util/coding/coder.hIn file included from :/usr/local/clang/include/absl/base/internal/endian.hs2/s2shapeutil_contains_brute_force.cc36:::
25418In file included from ::
../src/s2/base/casts.h27: In file included from warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]../src/s2/s2shapeutil_contains_brute_force.h
:21:
In file included from ../src/s2/s2point.h:  27254:
 | In file included from i../src/s2/s2coder.hn:l23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :v67o:
iIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h :S29t:
or/usr/local/clang/include/absl/strings/cord.he:19296:(26v:o iwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]*
 abs  l929_ | n o n n uvloli dp ,S wuaipn(tI1n6l_itn evR)e p{*
       a| b                          ^s
l_n/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l  note: rexpanded from macro 'absl_nonnull'h
s)  ;241
 |       #| d                         ^e
fin/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21In file included from :
s2/util/coding/coder.ccIn file included from :../src/s2/s2point.h19::
27In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2coder.h40::
23In file included from :
../src/s2/util/coding/varint.hIn file included from :/usr/local/clang/include/absl/status/status.h44::
67In file included from :
../src/s2/util/bits/bits.hIn file included from :/usr/local/clang/include/absl/status/internal/status_internal.h21::
29In file included from :
/usr/local/clang/include/absl/numeric/bits.h:/usr/local/clang/include/absl/strings/cord.h52::
932:/usr/local/clang/include/absl/base/internal/endian.h17::258 :36warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  932 |     258  |  icnolnisnte  cuhianrt*3 2a_bts lL_onaudl3l2a(bcloen sdta tvao(i)d *c oanbsstl;_
n      o| n                ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 257p:)23 :{ 
note:       expanded from macro 'absl_nullable'| 
                                   ^
  257 | /usr/local/clang/include/absl/base/nullability.h#:d241e:f22i:n enote:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#udlelfaibnlee  a_bNsull_lnaobnlneu
l      l|                        ^_
Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     voIn file included from is2/util/coding/coder.ccd: 19s:
eIn file included from t../src/s2/util/coding/coder.h_:d40a:
tIn file included from a../src/s2/util/coding/varint.h(:c44o:
nIn file included from s../src/s2/util/bits/bits.ht: 21c:
hIn file included from a/usr/local/clang/include/absl/numeric/bits.hr:*52 :
a/usr/local/clang/include/absl/base/internal/endian.hb:s262l:_27n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
ble   262d | aitnal,i nsei zveo_itd  nS)t;o
r      e| 3                              ^2
(v/usr/local/clang/include/absl/base/nullability.ho:i257d:*23 :a bnote: sexpanded from macro 'absl_nullable'l
_n  o257n | n#udlelf ipn,e  uaibnstl3_2n_utl lva)b l{e
       _| N                          ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241l:e22
:       | note:                       ^expanded from macro 'absl_nonnull'

  241 | #define absl_nonIn file included from ns2/s2shapeutil_contains_brute_force.ccu:l18l:
 In file included from _../src/s2/s2shapeutil_contains_brute_force.hN:o21n:
nIn file included from u../src/s2/s2point.hl:l27
:
      In file included from | ../src/s2/s2coder.h                     ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_dataIn file included from (s2/util/coding/coder.ccs:i19z:
eIn file included from _../src/s2/util/coding/coder.ht: 40n:
)In file included from ;../src/s2/util/coding/varint.h : 44/:
/In file included from  ../src/s2/util/bits/bits.hW:r21i:
tIn file included from e/usr/local/clang/include/absl/numeric/bits.h :d52a:
t/usr/local/clang/include/absl/base/internal/endian.ha: 266t:o36 :t hwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
res  u266l | ti
n      l| i          ^n
e /usr/local/clang/include/absl/base/nullability.hu:i241n:t226:4 _note: texpanded from macro 'absl_nonnull' 
Lo  a241d | 6#4d(ecfoinnset  avbosild_*n oanbnsull_ln o_nNnounlnlu lpl)
       {| 
                     ^      
|                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from ss2/s2shapeutil_contains_brute_force.ccl:_18n:
oIn file included from n../src/s2/s2shapeutil_contains_brute_force.hn:u21l:
lIn file included from  ../src/s2/s2point.h_:N27o:
nIn file included from n../src/s2/s2coder.hu:l23l:

In file included from       /usr/local/clang/include/absl/status/status.h| :                     ^67
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* In file included from as2/util/coding/coder.ccb:s19l:
_In file included from n../src/s2/util/coding/coder.hu:l40l:
aIn file included from b../src/s2/util/coding/varint.hl:e44 :
tIn file included from r../src/s2/util/bits/bits.he:e21(:
)In file included from  /usr/local/clang/include/absl/numeric/bits.hc:o52n:
s/usr/local/clang/include/absl/base/internal/endian.ht:;270
:      27| :                                  ^ 
warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
257:23:   note: 270expanded from macro 'absl_nullable' | 
in  l257i | n#ed evfoiinde  Satbosrle_6n4u(lvloaibdl*e  a_bNsull_lnaobnlneu
l      l|                        ^p
, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:In file included from 241s2/s2shapeutil_contains_brute_force.cc::2218::
 In file included from ../src/s2/s2shapeutil_contains_brute_force.hnote: :expanded from macro 'absl_nonnull'21
:
In file included from ../src/s2/s2point.h  :24127 | :
#In file included from d../src/s2/s2coder.he:f23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
n/usr/local/clang/include/absl/strings/cord.hn:u938l:l35 :_ Nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
nul  l938
 |        |                       ^ 
 absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
:36:
In file included from In file included from ../src/s2/base/logging.h:s2/s2shapeutil_coding.cc21::
28In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2lax_polygon_shape.h37::
36In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2polygon.h21::
34:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/mutable_s2shape_index.h464::3026:
:In file included from  /usr/local/clang/include/absl/container/btree_map.h:warning: 67:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22:passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
note: expanded from macro 'absl_nonnull'
  588   | 241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oXn(niunlsle r_tN_oonrn_ualsls
i      g| n                     ^,
 insert_or_assiIn file included from gs2/s2wedge_relations.ccn:_18h:
iIn file included from n../src/s2/s2wedge_relations.ht:_24i:
mIn file included from p../src/s2/s2point.hl:,25 :
&In file included from &../src/s2/util/coding/coder.h,: 36&:
&In file included from ,../src/s2/base/casts.h :f36a:
lIn file included from s../src/s2/base/logging.he:,21
:
      In file included from | /usr/local/clang/include/absl/log/check.h  ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/btree_container.h::21509:
:/usr/local/clang/include/absl/log/internal/check_op.h52::463 :1note: :expanded from macro 'ABSL_INTERNAL_X' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
    509463 |  |  A B S L _ L O G _ IANBTSELR_NIANLT_EDRENFAILN_EA_TMTARKIEB_UCTHEE_CCKA_POTPU_RSETDR_IBNYG(_tEhXiTsE)R)N,( 
        |  ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 450 : 25 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' 
     450  |         \ 
       x| ,                                                   ^ 
x, /usr/local/clang/include/absl/container/internal/common.hc:o32n:s9t:  cnote: hmacro 'ABSL_INTERNAL_IF_false' defined herea
r*    32a | b#sdle_fnionnen uAlBlS)L
_      I| N                        ^T
ER/usr/local/clang/include/absl/base/nullability.hN:A241L:_22I:F _note: fexpanded from macro 'absl_nonnull'a
ls  e241( | i#fd_esfaitnies faibesdl,_ n.o.n.n)u l_l_ V_AN_oAnRnGuSl_l_

            | |                      ^        ^

In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s2/s2wedge_relations.cc
:18:
In file included from   ../src/s2/s2wedge_relations.h588: | 24 :
 In file included from A../src/s2/s2point.hB:S25L:
_In file included from I../src/s2/util/coding/coder.hN:T36E:
RIn file included from N../src/s2/base/casts.hA:L36_:
XIn file included from (../src/s2/base/logging.hi:n21s:
eIn file included from r/usr/local/clang/include/absl/log/check.ht:_37o:
rIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.ha:s21s:
i/usr/local/clang/include/absl/log/internal/check_op.hg:n465,: 1i:n swarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
t_or  _465a | sAsBiSgLn__LhOiGn_tI_NiTmEpRlN,A L&_&D,E F&I&N,E _fMaAlKsEe_,C
H      E| C  ^K
_O/usr/local/clang/include/absl/container/internal/btree_container.hP:_511S:T52R:I Nnote: Gexpanded from macro 'ABSL_INTERNAL_X'_
EXT  E511R | N ( c o n s t   v o iAdB*S La_bIsNlT_EnRoNnAnLu_lAlT)T;R
I      B| U^T
E_/usr/local/clang/include/absl/log/internal/check_op.hC:A449P:T31U:R Enote: Dexpanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'_
BY(  t449h | i s )e)x)t e r n   t e m p l a t e   c o n s t   c h a r *\ 
a      b| s                                                   ^l
_n/usr/local/clang/include/absl/container/internal/common.ho:n31n:u9l:l  note: Mmacro 'ABSL_INTERNAL_IF_true' defined herea
ke   C31h | e#cdkeOfpiSnter iAnBgS(L _ I N\T
E      R| N                              ^A
L_/usr/local/clang/include/absl/base/nullability.hI:F241_:t22r:u enote: (expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende,  a.b.s.l)_ niofn_nsualtli s_fNioendn
u      l| l        ^

      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.hIn file included from :s2/s2shapeutil_coding.cc25::
28In file included from :
../src/s2/util/coding/coder.hIn file included from :../src/s2/s2lax_polygon_shape.h36::
36In file included from :
../src/s2/base/casts.hIn file included from :../src/s2/s2polygon.h36::
34In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/mutable_s2shape_index.h21::
30In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h37::
67In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/btree_container.h::21588:
:/usr/local/clang/include/absl/log/internal/check_op.h3::465 :66warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
588 |     A465B | SALB_SILN_TLEORGN_AILN_TXE(RiNnAsLe_rDtE_FoIrN_Ea_sMsAiKgEn_,C HiEnCsKe_rOtP__oSrT_RaIsNsGi_gEnX_ThEiRnNt(_ciomnpslt,  v&o&i,d *& &a,b sfla_lnsoen,n
u      l| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)
;
        | 589                                                                 ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d etfriunee,  acbosnls_tn_ointneurlalt o_rN(ohninnutl)l 
A      B| S                     ^L
_INTERNIn file included from As2/s2wedge_relations.ccL:_18C:
OIn file included from M../src/s2/s2wedge_relations.hM:A24):
;In file included from 
../src/s2/s2point.h      :| 25                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/util/coding/coder.h:36/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 511../src/s2/base/casts.h::4736::
 In file included from ../src/s2/base/logging.hnote: :expanded from macro 'ABSL_INTERNAL_X'21
:
In file included from /usr/local/clang/include/absl/log/check.h:37  :
511In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h : 21 :
 /usr/local/clang/include/absl/log/internal/check_op.h : 465 : 66 :  Awarning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]S
L/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_A  T241T | R#IdBeUfTiEn_eC AaPbTsUlR_EnDo_nBnYu(ltlh i_sN)o)n)n u l l 
        |                       ^ 
       In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
\In file included from 
../src/s2/s2point.h      :| 25                                              ^~~~:

In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18/usr/local/clang/include/absl/container/internal/btree_container.h:
:In file included from 590../src/s2/s2wedge_relations.h::324::
 In file included from ../src/s2/s2point.hwarning: :25passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:

In file included from ../src/s2/util/coding/coder.h:36:
  In file included from 590../src/s2/base/casts.h | : 36 :
AIn file included from B../src/s2/base/logging.hS:L21_:
IIn file included from N/usr/local/clang/include/absl/log/check.hT:E37R:
NIn file included from A/usr/local/clang/include/absl/log/internal/check_impl.hL:_21X:
(/usr/local/clang/include/absl/log/internal/check_op.hi:n502s:e1r:t _warning: otype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
_as  s502i | gAnB,S Li_nLsOeGr_tI_NoTrE_RaNsAsLi_In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:29:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_visit_crossing_edge_pairs.cc:29:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
gIn file included from n_s2/s2shapeutil_contains_brute_force.cch:i18n:
tIn file included from _../src/s2/s2shapeutil_contains_brute_force.hi:m21p:
lIn file included from ,../src/s2/s2point.h :&27&:
,In file included from  ../src/s2/s2coder.h&:&23,:
 In file included from t/usr/local/clang/include/absl/status/status.hr:u67e:
,In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h      :| 29  ^:

/usr/local/clang/include/absl/strings/cord.h:950:18/usr/local/clang/include/absl/container/internal/btree_container.h:: 509:warning: 52:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'
  950 |    509  |     C o r d R e p F lAaBtS*L _aIbNsTlE_RnNoAnLn_uAlTlT RMIaBkUeTFEl_aCtAWPiTtUhREExDt_rBaYC(atphaicsi)t)y,( s i z e _ t   e x t r a ) ; 
        |                   ^ 
    /usr/local/clang/include/absl/base/nullability.h :\241
:      22| :                                                   ^ 
note: expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/container/internal/common.h:  31241: | 9#:d enote: fmacro 'ABSL_INTERNAL_IF_true' defined herei
ne    a31b | s#ld_enfoinnneu lAlB S_LN_oInNnTuElRlN
A      L| _                     ^I
F_true(if_satisfied, ...) if_satisfieIn file included from ds2/s2shapeutil_contains_brute_force.cc
:      18| :
        ^In file included from 
../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 957s2/s2shapeutil_coding.cc | : 28 :
 In file included from  ../src/s2/s2lax_polygon_shape.hv:o36i:
dIn file included from  ../src/s2/s2polygon.hS:e34t:
TIn file included from r../src/s2/mutable_s2shape_index.he:e30(:
CIn file included from o/usr/local/clang/include/absl/container/btree_map.hr:d67R:
e/usr/local/clang/include/absl/container/internal/btree_container.hp:*590 :a3b:s lwarning: _'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
onnull   590r | e p ,A BcSoLn_sItN TCEoRrNdAzLU_pXd(aitnesSecrotp_eo&r _sacsospieg)n;,
       i| n                          ^s
er/usr/local/clang/include/absl/base/nullability.ht:_241o:r22_:a snote: sexpanded from macro 'absl_nonnull'i
gn  _241h | i#ndte_fiimnpel ,a b&s&l,_ n&o&n,n utlrlu e_,N
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll
        591|  |                      ^ 
                 false, constIn file included from _s2/s2shapeutil_contains_brute_force.cci:t18e:
rIn file included from a../src/s2/s2shapeutil_contains_brute_force.ht:o21r:
(In file included from h../src/s2/s2point.hi:n27t:
)In file included from  ../src/s2/s2coder.hA:B23S:
LIn file included from _/usr/local/clang/include/absl/status/status.hI:N67T:
EIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hN:A29L:
_/usr/local/clang/include/absl/strings/cord.hC:O961M:M34A:) ;warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  961 | /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47v:o inote: dexpanded from macro 'ABSL_INTERNAL_X' 
SetT  r509e | e O r E m p t y ( C oArBdSRLe_pI*N TaEbRsNlA_Ln_uAlTlTaRbIlBeU TrEe_pC,A
P      T| U                                 ^R
ED/usr/local/clang/include/absl/base/nullability.h_:B257Y:(23t:h inote: sexpanded from macro 'absl_nullable')
),   257  |  # d e f i n e   a b s l _ n u l l a b l e  \_
N      u| l                                              ^~~~l
able
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  In file included from 511s2/s2shapeutil_contains_brute_force.cc | : 18 :
 In file included from  ../src/s2/s2shapeutil_contains_brute_force.h : 21 :
 In file included from  ../src/s2/s2point.h :A27B:
SIn file included from L../src/s2/s2coder.h_:I23N:
TIn file included from E/usr/local/clang/include/absl/status/status.hR:N67A:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hA:T29T:
R/usr/local/clang/include/absl/strings/cord.hI:B968U:T31E:_ Cwarning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]P
TUR  E968D | _ B Y ( tvhoiisd) )E)m p l a c e T r e e ( C o r d R e p *   a b s l _\n
o      n| n                                                   ^u
ll/usr/local/clang/include/absl/container/internal/common.h :r32e:p9,:  Mnote: emacro 'ABSL_INTERNAL_IF_false' defined heret
hod   I32d | e#ndteiffiineer  AmBeStLh_oIdN)T;E
R      N| A                              ^L
_I/usr/local/clang/include/absl/base/nullability.hF:_241f:a22l:s enote: (expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende,  a.b.s.l)_ n_o_nVnAu_lAlR G_SN_o_n
n      u| l        ^l

      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable In file included from os2/s2shapeutil_coding.ccl:d28_:
rIn file included from e../src/s2/s2lax_polygon_shape.hp:,36
:
      In file included from | ../src/s2/s2polygon.h                                   ^:
34:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h::25730::
23In file included from :/usr/local/clang/include/absl/container/btree_map.h :67note: :
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/container/internal/btree_container.h:  592257: | 3#:d ewarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ne a  b592s | l _ nAuBlSlLa_bIlNeT E_RNNuAlLl_aXb(lien
s      e| r                      ^t
_or_assigIn file included from ns2/s2shapeutil_contains_brute_force.cc,: 18i:
nIn file included from s../src/s2/s2shapeutil_contains_brute_force.he:r21t:
_In file included from o../src/s2/s2point.hr:_27a:
sIn file included from s../src/s2/s2coder.hi:g23n:
_In file included from h/usr/local/clang/include/absl/status/status.hi:n67t:
_In file included from i/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
,/usr/local/clang/include/absl/strings/cord.h :&979&:,30 :& &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
tru  e979, | 
        |    ^ 
  /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 52 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  | C o r d R e p *   a bAsBlS_Ln_oInNnTuElRlN ArLe_pA,T TcRoInBsUtT EC_oCrAdPzTUUpRdEaDt_eBSYc(otphei&s )s)c,o p e , 
        |                               ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #\d
e      f| i                                                   ^n
e /usr/local/clang/include/absl/container/internal/common.ha:b31s:l9_:n onote: nmacro 'ABSL_INTERNAL_IF_true' defined heren
ull    31_ | N#odnenfuilnle
       A| B                     ^S
L_INTERNAL_IF_true(iIn file included from fs2/s2shapeutil_contains_brute_force.cc_:s18a:
tIn file included from iCsfieHdE,C K._.O.P)_ IiMfP_Ls(aCthiescfki_eEdQ
,       | =        ^=
)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inIn file included from ls2/s2shapeutil_coding.cci:n28e:
 In file included from c../src/s2/s2lax_polygon_shape.ho:n36s:
tIn file included from e../src/s2/s2polygon.hx:p34r:
 In file included from c../src/s2/mutable_s2shape_index.ho:n30s:
tIn file included from  /usr/local/clang/include/absl/container/btree_map.hc:h67a:
r/usr/local/clang/include/absl/container/internal/btree_container.h*: 592a:b3s:l _warning: n'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]u
llable   592n | a m eA#B#SILm_pIlN(T E R N A L _ X ( i n s e r t _ o r _ a\s
s      i| g                               ^n
, in/usr/local/clang/include/absl/base/nullability.hs:e257r:t23_:o rnote: _expanded from macro 'absl_nullable'a
ss  i257g | n#_dheifnitn_ei mapbls,l _&n&u,l l&a&b,l et r_uNeu,l
l      a| b  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
e
        | 593                      ^ | 
                  true, const_In file included from is2/s2wedge_relations.cct:e18r:
aIn file included from t../src/s2/s2wedge_relations.ho:r24(:
hIn file included from i../src/s2/s2point.hn:t25):
 In file included from A../src/s2/util/coding/coder.hB:S36L:
_In file included from I../src/s2/base/casts.hN:T36E:
RIn file included from N../src/s2/base/logging.hA:L21_:
CIn file included from O/usr/local/clang/include/absl/log/check.hM:M37A:
)In file included from ;/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/usr/local/clang/include/absl/log/internal/check_op.h
:502:1:/usr/local/clang/include/absl/container/internal/btree_container.h:509 :47warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
note: expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/log/internal/check_op.h
:489:47:   509note:  | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL' 
       489  |       A B S Lc_oInNsTtE RTN1A&L _vA1T,T RcIoBnUsTtE _TC2A&P TvU2R,E Dc_oBnYs(tt hcihsa)r)*,  a b s l _ n o n n u l l   e x p r t e x t )   {\ 
        |                                                ^~~~ 
\
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/container/internal/btree_container.h:: 592:note: 3expanded from macro 'absl_nonnull':
 warning:   passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
 | #/usr/local/clang/include/absl/container/internal/btree_container.hd:e511f:i52n:e  note: aexpanded from macro 'ABSL_INTERNAL_X'b
sl_  n511o | n n u l l   _ N o n nAuBlSlL
_      I| N                     ^T
ERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfIn file included from is2/s2wedge_relations.cce:d18
:
      In file included from | ../src/s2/s2wedge_relations.h        ^:
24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/s2shapeutil_coding.cc/usr/local/clang/include/absl/log/check.h::2837:
:
In file included from In file included from ../src/s2/s2lax_polygon_shape.h/usr/local/clang/include/absl/log/internal/check_impl.h::3621:
:
In file included from ../src/s2/s2polygon.h/usr/local/clang/include/absl/log/internal/check_op.h::34502:
:In file included from 1../src/s2/mutable_s2shape_index.h:: 30:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/container/btree_map.h
:67:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree_container.h::497592::323::  note: warning: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL''lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  497   | 592  |   i nAlBiSnLe_ IcNoTnEsRtNeAxLp_rX (cionnssetr tc_hoarr_*a sasbisgln_,n uilnlsaebrlte_ onra_maes#s#iIgmnp_lh(i n t _ i m p l ,   & & ,   & & ,   t r\u
e      ,| 
                               ^      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/base/nullability.h:257:  23593: |   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b stlr_uneu,l lcaobnlset __iNtuelrlaatbolre(
h      i| n                      ^t
) ABSL_INIn file included from Ts2/s2wedge_relations.ccE:R18N:
AIn file included from L../src/s2/s2wedge_relations.h_:C24O:
MIn file included from M../src/s2/s2point.hA:)25;:

In file included from       ../src/s2/util/coding/coder.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~36
:
In file included from ../src/s2/base/casts.h:/usr/local/clang/include/absl/container/internal/btree_container.h36::
511In file included from :../src/s2/base/logging.h47::21 :
In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'ABSL_INTERNAL_X':
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:  21511:
 | /usr/local/clang/include/absl/log/internal/check_op.h : 502 : 1 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
 A/usr/local/clang/include/absl/log/internal/check_op.hB:S498L:_35I:N Tnote: Eexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'R
NAL  _498A | T T R I B U TiEn_tC AvP1T,U RiEnDt_ BvY2(,t hciosn)s)t)  c h a r *   a b s l _ n o n n u l l   e x p r t\e
x      t| )                                              ^~~~ 
{                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h: | 27:
In file included from ../src/s2/s2coder.h : 23A:
BIn file included from S/usr/local/clang/include/absl/status/status.hL:_67I:
NIn file included from T/usr/local/clang/include/absl/status/internal/status_internal.hE:R29N:
AL/usr/local/clang/include/absl/strings/cord.h_:X982(:t39r:y _warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
place,   t982r | y _ e m pvloaicde _Aipmppeln,d TcroenesTto I&n,l ifnaelds(eC)o;r
d      R| e  ^p
* ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l611_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l tre  e611, | 
        |                                        ^ 
     /usr/local/clang/include/absl/base/nullability.h :A241B:S22L:_ Inote: Nexpanded from macro 'absl_nonnull'T
ER  N241A | L#_dAeTfTiRnIeB UaTbEs_lC_AnPoTnUnRuElDl_ B_YN(otnhniusl)l)
,       |                       ^ 
                       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #defIn file included from is2/s2shapeutil_contains_brute_force.ccn:e18 :
AIn file included from B../src/s2/s2shapeutil_contains_brute_force.hS:L21_:
IIn file included from N../src/s2/s2point.hT:E27R:
NIn file included from A../src/s2/s2coder.hL:_23I:
FIn file included from _/usr/local/clang/include/absl/status/status.hf:a67l:
sIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h(:i29f:
_/usr/local/clang/include/absl/strings/cord.hs:a984t:i36s:f iwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
, ..  .984) |   _ _ V Av_oAiRdG SA_p_p
e      n| d        ^T
reeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_In file included from ns2/s2shapeutil_coding.cco:n28n:
uIn file included from l../src/s2/s2lax_polygon_shape.hl: 36_:
NIn file included from o../src/s2/s2polygon.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h
:      30| :
                     ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619In file included from  | s2/s2shapeutil_contains_brute_force.cc : 18A:
BIn file included from S../src/s2/s2shapeutil_contains_brute_force.hL:_21I:
NIn file included from T../src/s2/s2point.hE:R27N:
AIn file included from L../src/s2/s2coder.h_:X23(:
tIn file included from r/usr/local/clang/include/absl/status/status.hy:_67e:
mIn file included from p/usr/local/clang/include/absl/status/internal/status_internal.hl:a29c:
e/usr/local/clang/include/absl/strings/cord.h,: 985t:r30y:_ ewarning: mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
lace  _985i | m p l ,  vcooinds tA p&p,e ntdrTuree)e;(
C      o| r                                                              ^d
Re/usr/local/clang/include/absl/container/internal/btree_container.hp:*596 :a9b:s lnote: _macro 'ABSL_INTERNAL_X' defined heren
onnu  l596l |  #tdreefei,n eM eAtBhSoLd_IIdNeTnEtRiNfAiLe_rX (mFeutnhco,d )C;a
l      l| e                             ^e
, /usr/local/clang/include/absl/base/nullability.hK:Q241u:a22l:,  note: Kexpanded from macro 'absl_nonnull'V
al  u241e | ,# d.e.f.i)n e   a b s l _ n o n n u l l   _ N o n n u l\l

            | |         ^                     ^

In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_619n:o3n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
 _No  n619n | u l lA
B      S| L                     ^_
INTERNAL_X(try_emIn file included from ps2/s2shapeutil_contains_brute_force.ccl:a18c:
eIn file included from ,../src/s2/s2shapeutil_contains_brute_force.h :t21r:
yIn file included from _../src/s2/s2point.he:m27p:
lIn file included from a../src/s2/s2coder.hc:e23_:
iIn file included from m/usr/local/clang/include/absl/status/status.hp:l67,:
 In file included from c/usr/local/clang/include/absl/status/internal/status_internal.ho:n29s:
t/usr/local/clang/include/absl/strings/cord.h :&988,: 37t:r uwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension])
;
      |     ^988
 |  /usr/local/clang/include/absl/container/internal/btree_container.h : 611 :v52o:i dnote:  expanded from macro 'ABSL_INTERNAL_X'P
rep  e611n | d T r e e T o T r e eA(BCSoLr_dIRNeTpE*R NaAbLs_lA_TnToRnInBuUlTlE _tCrAePeT,U RMEeDt_hBoYd(Itdheinst)i)f,i e r   m e t h o d ) ; 
        |                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull'\

        | 241                                                   ^ | 
#d/usr/local/clang/include/absl/container/internal/common.he:f31i:n9e:  anote: bmacro 'ABSL_INTERNAL_IF_true' defined heres
l_n   o31n | n#udlelf i_nNeo nAnBuSlLl_
I      N| T                     ^E
RNAL_IF_true(if_In file included from ss2/s2shapeutil_contains_brute_force.cca:t18i:
sIn file included from f../src/s2/s2shapeutil_contains_brute_force.hi:e21d:
,In file included from  ../src/s2/s2point.h.:.27.:
)In file included from  ../src/s2/s2coder.hi:f23_:
sIn file included from a/usr/local/clang/include/absl/status/status.ht:i67s:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.he:d29
:
      | /usr/local/clang/include/absl/strings/cord.h        ^:
989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     voidIn file included from  s2/s2shapeutil_coding.ccP:r28e:
pIn file included from e../src/s2/s2lax_polygon_shape.hn:d36T:
rIn file included from e../src/s2/s2polygon.he:(34C:
oIn file included from r../src/s2/mutable_s2shape_index.hd:R30e:
pIn file included from */usr/local/clang/include/absl/container/btree_map.h :a67b:
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_619n:o3n:n uwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]l
 tr  e619e | ,   MAeBtShLo_dIINdTeEnRtNiAfLi_eXr( tmreyt_heomdp)l;a
c      e| ,                              ^ 
tr/usr/local/clang/include/absl/base/nullability.hy:_241e:m22p:l anote: cexpanded from macro 'absl_nonnull'e
_i  m241p | l#,d ecfoinnset  a&b,s lt_rnuoen)n;u
l      l|    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
Non/usr/local/clang/include/absl/container/internal/btree_container.hn:u611l:l47
:       | note:                      ^expanded from macro 'ABSL_INTERNAL_X'

  611 |           ABSL_INTERNAL_ATTRIBUTE_In file included from Cs2/s2shapeutil_contains_brute_force.ccA:P18T:
UIn file included from R../src/s2/s2shapeutil_contains_brute_force.hE:D21_:
BIn file included from Y../src/s2/s2point.h(:t27h:
iIn file included from s../src/s2/s2coder.h):)23,:
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 994 : 30 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      994  |   \ 
        | v                                              ^~~~o
id CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSLIn file included from _s2/s2shapeutil_contains_brute_force.ccI:N18T:
EIn file included from R../src/s2/s2shapeutil_contains_brute_force.hN:A21L:
_In file included from X../src/s2/s2point.h(:t27r:
yIn file included from _../src/s2/s2coder.he:m23p:
lIn file included from a/usr/local/clang/include/absl/status/status.hc:e67,:
 In file included from t/usr/local/clang/include/absl/status/internal/status_internal.hr:y29_:
e/usr/local/clang/include/absl/strings/cord.hm:p999l:a28c:e _warning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]m
pl,   999& | & ,   f avlosied) ;C
o      p| y                                                          ^T
oA/usr/local/clang/include/absl/container/internal/btree_container.hr:r596a:y9(:c hnote: amacro 'ABSL_INTERNAL_X' defined herer
* a  b596s | l#_dneofninnuel lA BdSsLt_)I NcToEnRsNtA;L
_      X| (                           ^F
un/usr/local/clang/include/absl/base/nullability.hc:,241 :C22a:l lnote: eexpanded from macro 'absl_nonnull'e
,   K241Q | u#adle,f KValue, ...)         In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
ine absl_no nn u l l   _ N o n n u l l\

            | |                      ^        ^

In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cor/usr/local/clang/include/absl/container/internal/btree_container.hd:z620_:i3n:f owarning: (passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted])
 con  s620t |   { 
A      B| S                                    ^L
_IN/usr/local/clang/include/absl/base/nullability.hT:E257R:N23A:L _note: Xexpanded from macro 'absl_nullable'(
tr  y257_ | e#mdpelfaicnee,  atbrsyl__enmuplllaacbel_ei m_pNlu,l l&a&b,l ef
a      l| s                      ^e
);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           AIn file included from Bs2/s2shapeutil_contains_brute_force.ccS:L18_:
IIn file included from N../src/s2/s2shapeutil_contains_brute_force.hT:E21R:
NIn file included from A../src/s2/s2point.hL:_27A:
TIn file included from T../src/s2/s2coder.hR:I23B:
UIn file included from T/usr/local/clang/include/absl/status/status.hE:_67C:
AIn file included from P/usr/local/clang/include/absl/status/internal/status_internal.hT:U29R:
E/usr/local/clang/include/absl/strings/cord.hD:_1017B:Y51(:t hwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
)),   1017  |          v o i d   s e t _ c o r d z _ i n f o\(
c      o| r                                                   ^d
_in/usr/local/clang/include/absl/container/internal/common.ht:e32r:n9a:l :note: :macro 'ABSL_INTERNAL_IF_false' defined hereC
ord   z32I | n#fdoe*f ianbes lA_BnSoLn_nIuNlTlE RcNoArLd_zI_Fi_nffaol)s e{(
i      f| _                                                  ^s
at/usr/local/clang/include/absl/base/nullability.hi:s241f:i22e:d ,note:  expanded from macro 'absl_nonnull'.
..  )241  | _#_dVeAf_iAnReG Sa_b_s
l      _| n        ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplacIn file included from es2/s2shapeutil_contains_brute_force.cc_:i18m:
pIn file included from l../src/s2/s2shapeutil_contains_brute_force.h,: 21&:
&In file included from ,../src/s2/s2point.h :t27r:
uIn file included from e../src/s2/s2coder.h):;23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                                         ^:
67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/internal/status_internal.h::59629::
9:/usr/local/clang/include/absl/strings/cord.h :1049note: :macro 'ABSL_INTERNAL_X' defined here56
: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]596
 | #de f1049i | n e  sAtBaStLi_cI NbToEoRlN AGLe_tXF(lFautnAcu,x (Caablslle:e:,c oKrQdu_ailn,t eKrVnaallu:e:,C o.r.d.R)e p *   a b s l _ n o n n u l l   r e p , 
       \| 
                                                       ^      
|         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                        /usr/local/clang/include/absl/container/internal/btree_container.h : 621a:b3s:l :warning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]s
tri  n621g | _ v iAeBwS*L _aIbNsTlE_RnNoAnLn_uXl(lt rfyr_aegmmpelnatc)e;,
       t| r                                            ^y
_e/usr/local/clang/include/absl/base/nullability.hm:p241l:a22c:e _note: iexpanded from macro 'absl_nonnull'm
pl  ,241  | &#&d,e ftirnuee )a;b
s      l| _  ^n
onn/usr/local/clang/include/absl/container/internal/btree_container.hu:l611l: 52_:N onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull
        611|  |                      ^ 
         ABSL_INTERNAL_ATTRIIn file included from Bs2/s2shapeutil_contains_brute_force.ccU:T18E:
_In file included from C../src/s2/s2shapeutil_contains_brute_force.hA:P21T:
UIn file included from R../src/s2/s2point.hE:D27_:
BIn file included from Y../src/s2/s2coder.h(:t23h:
iIn file included from s/usr/local/clang/include/absl/status/status.h):)67,:
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 1054 : 37 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1054  |             \a
b      s| l                                                   ^:
:c/usr/local/clang/include/absl/container/internal/common.ho:r31d:_9i:n tnote: emacro 'ABSL_INTERNAL_IF_true' defined herer
nal   :31: | C#odredfRienpe*  AaBbSsLl__InNoTnEnRuNlAlL _rIeFp_,t
r      u| e                                    ^(
if/usr/local/clang/include/absl/base/nullability.h_:s241a:t22i:s fnote: iexpanded from macro 'absl_nonnull'e
d,   241. | .#.d)e fiifn_es aatbisslf_ineodn
n      u| l        ^l
 _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
In file included from   s2/s2shapeutil_contains_brute_force.cc621: | 18 :
 In file included from A../src/s2/s2shapeutil_contains_brute_force.hB:S21L:
_In file included from I../src/s2/s2point.hN:T27E:
RIn file included from N../src/s2/s2coder.hA:L23_:
XIn file included from (/usr/local/clang/include/absl/status/status.ht:r67y:
_In file included from e/usr/local/clang/include/absl/status/internal/status_internal.hm:p29l:
a/usr/local/clang/include/absl/strings/cord.hc:e1061,: 34t:r ywarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
mpl a1061c | e _ ivmopild,  C&o&p,y TtorAurer)a;y
S      l| o  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~w
Pat/usr/local/clang/include/absl/container/internal/btree_container.hh:(611c:h47a:r *note:  expanded from macro 'ABSL_INTERNAL_X'a
bsl_  n611o | n n u l l   d s t )  AcBoSnLs_tI;N
T      E| R                                 ^N
AL/usr/local/clang/include/absl/base/nullability.h_:A241T:T22R:I Bnote: Uexpanded from macro 'absl_nonnull'T
E_  C241A | P#TdUeRfEiDn_eB Ya(btshli_sn)o)n,n u l l   _ N o n n u l l 
        |                       ^ 
         \
      |                                               ^~~~
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplaceIn file included from _s2/s2shapeutil_contains_brute_force.cch:i18n:
tIn file included from _../src/s2/s2shapeutil_contains_brute_force.hi:m21p:
lIn file included from ,../src/s2/s2point.h :c27o:
nIn file included from s../src/s2/s2coder.ht: 23&:
,In file included from  /usr/local/clang/include/absl/status/status.ht:r67u:
eIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/strings/cord.h:1078:  33625: |   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      1078  |      a b s l : : ccoornds_ti_nitteerrnaatlo:r:(ChoirndtR)e pA*B SaLb_sIlN_TnEoRnNnAuLl_lC OTMaMkAe)R;e
p      (| )                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
con/usr/local/clang/include/absl/container/internal/btree_container.hs:t611&:;47
:       | note:                                 ^expanded from macro 'ABSL_INTERNAL_X'

/usr/local/clang/include/absl/base/nullability.h:  241611: | 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oAnTnTuRlIlB U_TNEo_nCnAuPlTlU
R      E| D                     ^_
BY(this)),           In file included from  s2/s2shapeutil_contains_brute_force.cc : 18 :
 In file included from  ../src/s2/s2shapeutil_contains_brute_force.h : 21 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from \../src/s2/s2coder.h
:      23| :
                                              ^~~~In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTEIn file included from Rs2/s2shapeutil_contains_brute_force.ccN:A18L:
_In file included from X../src/s2/s2shapeutil_contains_brute_force.h(:t21r:
yIn file included from _../src/s2/s2point.he:m27p:
lIn file included from a../src/s2/s2coder.hc:e23,:
 In file included from t/usr/local/clang/include/absl/status/status.hr:y67_:
eIn file included from m/usr/local/clang/include/absl/status/internal/status_internal.hp:l29a:
c/usr/local/clang/include/absl/strings/cord.he:_1116h:i37n:t _warning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]m
pl,  &1116& | ,   fcaolnsset, 
c      r| c  ^_
in/usr/local/clang/include/absl/container/internal/btree_container.ht:e611r:n52a:l :note: :expanded from macro 'ABSL_INTERNAL_X'C
rcC  o611r | d S t a t e *   a b sAlB_SnLu_lIlNaTbElReN AMLa_yAbTeTGReItBCUrTcEC_oCrAdPSTtUaRtEeD(_)B Yc(otnhsits;)
)      ,|                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a\b
s      l| _                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl:a32b:l9e:  _note: Nmacro 'ABSL_INTERNAL_IF_false' defined hereu
lla   b32l | e#
d      e| f                      ^i
ne ABSL_INTERNAL_IF_false(if_satIn file included from is2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
sfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define ab160s warningls_ generatedn.
onnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2shapeutil_contains_brute_force.cc::9418:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h../src/s2/s2shapeutil_contains_brute_force.h::3121:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h../src/s2/s2point.h::48927::
14In file included from :../src/s2/s2coder.h :23warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29489:
 | /usr/local/clang/include/absl/strings/cord.h : 1146 : 10 :  vwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
d ( *1146a | bCsolr_dnRuelpl*a balbes li_nnvoanrniualnlt )N(evwoEixdt*e ranbasllR_enpu(lalbasbli:l:isttyr_iunngk_nvoiwenw) ,d
a      t| a             ^,

      |          ^
/usr/local/clang/include/absl/base/nullability.h:257/usr/local/clang/include/absl/base/nullability.h::23241:: 22:note:  expanded from macro 'absl_nullable'note: 
expanded from macro 'absl_nonnull'
  257   | 241# | d#edfeifnien ea basbls_ln_unlolnanbullel  __NNuolnlnaubllle

            | |                      ^                      ^

In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: In file included from note: s2/s2shapeutil_contains_brute_force.ccexpanded from macro 'absl_nullability_unknown':
18:
In file included from   ../src/s2/s2shapeutil_contains_brute_force.h289: | 21#:
dIn file included from e../src/s2/s2point.hf:i27n:
eIn file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from _/usr/local/clang/include/absl/status/status.hn:u67l:
lIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hb:i29l:
i/usr/local/clang/include/absl/strings/cord.ht:y1159_:u17n:k nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]w
n _ N1159u | liln_luinnsep eCcoirfdiReedp
*       | a                                 ^b
sl_nonnull NewIn file included from Es2/s2text_format.ccx:t16e:
rIn file included from n../src/s2/s2text_format.ha:l34R:
eIn file included from p../src/s2/mutable_s2shape_index.h(:
30      :
| In file included from                 ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/internal/btree.h::24173::
22In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
241 | /usr/local/clang/include/absl/synchronization/mutex.h#:d490e:f13i:n ewarning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]a
bsl  _490n | o n n u l l  v_oNiodn*n ualbls
l      _| n                     ^u
llability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |         In file included from  s2/s2text_format.cc : 16 :
 In file included from  ../src/s2/s2text_format.h : 34 :
 In file included from  ../src/s2/mutable_s2shape_index.h : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
CIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hr:d31R:
e/usr/local/clang/include/absl/synchronization/mutex.hp:*549 :a40b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ull  a549b | l e  srteapt)i
c       | v                                              ^o
id /usr/local/clang/include/absl/base/nullability.hI:n257c:r23e:m enote: nexpanded from macro 'absl_nullable't
Sy  n257c | h#Sdeemf(iMnuet eaxb*s la_bnsull_lnaobnlneu l_lN umlul,a
b      l| e                                       ^

      |                       ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:552:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  552 |                                 base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2text_format.ccs2/s2wedge_relations.cc::1618:
:
In file included from In file included from ../src/s2/s2text_format.h../src/s2/s2wedge_relations.h::3424:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2point.h::3025:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/util/coding/coder.h::6636:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/base/casts.h::7336:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h../src/s2/base/logging.h::9421:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/log/check.h::3137:
:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h562::2158:
: /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]506
:1:   warning: 562 | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 voi  d506  | LAoBcSkLS_lLoOwG(_MIuNHToEwR NaAbLs_lC_HnEoCnKn_uOlPl_ IhMoPwL,( Cchoencskt_ GCEo,n d>i=t)i
o      n| *^ 
abs/usr/local/clang/include/absl/log/internal/check_op.hl:_488n:u32l:l anote: bexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'l
e c  o488n | d , 
i      n| l                                                         ^i
ne/usr/local/clang/include/absl/base/nullability.h :c257o:n23s:t enote: xexpanded from macro 'absl_nullable'p
r   c257o | n#sdte fcihnaer *a basbls_ln_unlullalbalbel e_ Nnualmlea#b#lIem
p      l| (                      ^ 
                  \
      |                                ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2text_format.cc257::1623:
:In file included from  ../src/s2/s2text_format.h:note: 34expanded from macro 'absl_nullable':

In file included from ../src/s2/mutable_s2shape_index.h:  30257:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e66f:
iIn file included from n/usr/local/clang/include/absl/container/internal/btree.he: 73a:
bIn file included from s/usr/local/clang/include/absl/strings/cord.hl:_94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl:a31b:
l/usr/local/clang/include/absl/synchronization/mutex.he: 565_:N36u:l lwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
le
      |                         ^565
 |   void UnlockSIn file included from ls2/s2wedge_relations.cco:w18(:
SIn file included from y../src/s2/s2wedge_relations.hn:c24h:
WIn file included from a../src/s2/s2point.hi:t25P:
aIn file included from r../src/s2/util/coding/coder.ha:m36s:
*In file included from  ../src/s2/base/casts.ha:b36s:
lIn file included from _../src/s2/base/logging.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/log/check.hb:l37e:
 In file included from w/usr/local/clang/include/absl/log/internal/check_impl.ha:i21t:
p/usr/local/clang/include/absl/log/internal/check_op.h): 506A:B1S:L _warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
TR/usr/local/clang/include/absl/log/internal/check_op.hI:B489U:T47E:_ Cnote: Oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'L
D;
        | 489                                   ^ | 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23c:o nnote: sexpanded from macro 'absl_nullable't
 T  1257& |  #vd1e,f icnoen satb sTl2_&n uvl2l,a bcloen s_tN uclhlaarb*l ea
b      s| l                      ^_
nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abslIn file included from _s2/s2text_format.ccn:o16n:
nIn file included from u../src/s2/s2text_format.hl:l34 :
_In file included from N../src/s2/mutable_s2shape_index.ho:n30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl:
66      :
| In file included from                      ^/usr/local/clang/include/absl/container/internal/btree.h
:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/s2wedge_relations.ccn:u18l:
lIn file included from 
../src/s2/s2wedge_relations.h      :| 24                     ^:

In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2text_format.cc:/usr/local/clang/include/absl/log/internal/check_op.h16::
506In file included from :../src/s2/s2text_format.h1::34 :
In file included from warning: ../src/s2/mutable_s2shape_index.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
30:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/btree_map.h::49766::
32In file included from :/usr/local/clang/include/absl/container/internal/btree.h :73note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h497: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.hi:n578l:i45n:e  warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nst  e578x | p r  vcooinds tB lcohcakr(*b aasbes_li_nntuelrlnaabll:e: PnearmTeh#r#eIamdpSly(n c h *   a b s l _ n o n n u l l   s )\;

            | |                                ^                                            ^

/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241257::2223::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nullable'

    241257 |  | ##ddeeffiinnee  aabbssll__nnounlnlualbll e_ N_oNnunlullalb
l      e| 
                     ^      
|                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:In file included from 24s2/s2text_format.cc:
:In file included from In file included from 16s2/s2shapeutil_contains_brute_force.cc../src/s2/s2point.h:
::In file included from 1825../src/s2/s2text_format.h:
:
:In file included from In file included from 34../src/s2/s2shapeutil_contains_brute_force.h../src/s2/util/coding/coder.h:
::In file included from 2136../src/s2/mutable_s2shape_index.h:
:
:In file included from In file included from 30../src/s2/s2point.h../src/s2/base/casts.h:
::In file included from 2736/usr/local/clang/include/absl/container/btree_map.h:
:
:In file included from In file included from 66../src/s2/s2coder.h../src/s2/base/logging.h:
::In file included from 2321/usr/local/clang/include/absl/container/internal/btree.h:
:
:In file included from In file included from 73/usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/log/check.h:
::In file included from 6737/usr/local/clang/include/absl/strings/cord.h:
:
:In file included from In file included from 94/usr/local/clang/include/absl/status/internal/status_internal.h/usr/local/clang/include/absl/log/internal/check_impl.h:
::In file included from 2921/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:
:/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h31:::
1222506:/usr/local/clang/include/absl/synchronization/mutex.h:52:1:580: : 34warning: warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 

warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h
: 4981222: |   35i580:n |  l inote: n expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'eb
 avs  oei498_d | i  nC to redr: : n Iianntll i:nve:R1P,ee pr:iTn:hStwrae apd(SvC2yo,rndc h:c:*o nIansbtlsi lcn_ehnRaeurl*pl* a aabbblsels _Wnloan_knneuolnlnu uple(lx pr
hr      tse)| x t                                 ^){ 

{      /usr/local/clang/include/absl/base/nullability.h | :                                                   ^ 257 
 : 23 /usr/local/clang/include/absl/base/nullability.h: :  241 note: : expanded from macro 'absl_nullable' 22
 :     note:  257expanded from macro 'absl_nonnull'  |  
#\d  e
241f       | i#| d                                  ^ne
fei n/usr/local/clang/include/absl/base/nullability.haeb s:la241b_s:nl22u_:nlo lnnote: nauexpanded from macro 'absl_nonnull'bl
lle   _ N241o_n | nNu#ldlu
elf      il| n                     ^aeb 
laeb
s      l| _                      ^n
onnullIn file included from  s2/s2text_format.cc_:N16o:
nIn file included from n../src/s2/s2text_format.hu:l34l:

In file included from       ../src/s2/mutable_s2shape_index.h| :                     ^30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2shapeutil_contains_brute_force.cc::24118::
22In file included from :../src/s2/s2shapeutil_contains_brute_force.h :21note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2point.h:27  :
241In file included from  | ../src/s2/s2coder.h#:d23e:
fIn file included from i/usr/local/clang/include/absl/status/status.hn:e67 :
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hs:l29_:
n/usr/local/clang/include/absl/strings/cord.ho:n1230n:u20l:l  warning: _type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]N
onnu l1230l | 
i      n| l                     ^i
ne const char* absl_nullable In file included from Cs2/s2text_format.cco:r16d:
:In file included from :../src/s2/s2text_format.hI:n34l:
iIn file included from n../src/s2/mutable_s2shape_index.he:R30e:
pIn file included from :/usr/local/clang/include/absl/container/btree_map.h::d66a:
tIn file included from a/usr/local/clang/include/absl/container/internal/btree.h(:)73 :
cIn file included from o/usr/local/clang/include/absl/strings/cord.hn:s94t:
 In file included from {/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                   ^/usr/local/clang/include/absl/synchronization/mutex.h
:585:20/usr/local/clang/include/absl/base/nullability.h:: 257:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nullable'
  585 |    257  | v#odiedf iTnrea nasb(sMlu_Hnouwl laabbslle_ n_oNnunlullalb lheo
w      )| ;                      ^ 
 // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absIn file included from ls2/s2shapeutil_contains_brute_force.cc_:n18o:
nIn file included from n../src/s2/s2shapeutil_contains_brute_force.hu:l21l:
 In file included from _../src/s2/s2point.hN:o27n:
nIn file included from u../src/s2/s2coder.hl:l23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                     ^:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234In file included from  | s2/s2text_format.cci:n16l:
iIn file included from n../src/s2/s2text_format.he: 34c:
oIn file included from n../src/s2/mutable_s2shape_index.hs:t30 :
cIn file included from h/usr/local/clang/include/absl/container/btree_map.ha:r66*:
 In file included from a/usr/local/clang/include/absl/container/internal/btree.hb:s73l:
_In file included from n/usr/local/clang/include/absl/strings/cord.ho:n94n:
uIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.hl: 31C:
o/usr/local/clang/include/absl/synchronization/mutex.hr:d586:::43I:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
eRe  p586: | : a sv_ocihda rFse(r)( bcaosnes_ti n{t
e      r| n                   ^a
l:/usr/local/clang/include/absl/base/nullability.h::P241e:r22T:h rnote: eexpanded from macro 'absl_nonnull'a
dS  y241n | c#hd*e faibnsel _anbosnln_unloln
n      u| l                                          ^l
 _/usr/local/clang/include/absl/base/nullability.hN:o241n:n22u:l lnote: 
expanded from macro 'absl_nonnull'      
|                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from In file included from ../src/s2/s2text_format.hs2/s2shapeutil_contains_brute_force.cc::3418:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2shapeutil_contains_brute_force.h::3021:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2point.h::6627:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2coder.h::7323:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.h::9467:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/status/internal/status_internal.h::3129:
:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/strings/cord.h::5901239::4038::  warning: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  590  | 1239  |  ienxlpilniec iatb sMlu:t:ecxo(rcdo_nisntt evronlaalt:i:lCeo rMduRteepx**  aabbssll__nnounlnlualbll eC o/r*di:g:nIonrleidn*e/R)e p{:}:
a      s| _                                       ^t
re/usr/local/clang/include/absl/base/nullability.he:(257):
23      :|                                       ^
note: expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/base/nullability.h:241  :25722 | :# dnote: eexpanded from macro 'absl_nonnull'f
in  e241  | a#bdself_innuel laabbslle_ n_oNnunlullalb l_eN
o      n| n                      ^u
ll
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:In file included from 21s2/s2text_format.cc:
:In file included from 16/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2text_format.h:
:In file included from 34/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/mutable_s2shape_index.h:
:30/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 507/usr/local/clang/include/absl/container/btree_map.h::166::
 In file included from /usr/local/clang/include/absl/container/internal/btree.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]73
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
507In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.hA:B31S:
L/usr/local/clang/include/absl/synchronization/mutex.h_:L624O:G68_:I Nwarning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]E
RNAL_C  H624E | C K _eOxPp_lIiMcPiLt( CMhuetcekx_LGoTc,k (>M)u
t      e| x^&
 mu/usr/local/clang/include/absl/log/internal/check_op.h :A488B:S32L:_ Inote: Nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'T
ERN  A488L | _ A TiTnRlIiBnUeT Ec_oCnAsPtTeUxRpErD _cBoYn(stth icsh)a)r
*       | a                                                                   ^~~~b
sl_nullable name##Impl(                   /usr/local/clang/include/absl/synchronization/mutex.h\:
635      :| 29                               ^:
 warning: /usr/local/clang/include/absl/base/nullability.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
257:23:   note: 635expanded from macro 'absl_nullable' | 
    e257x | p#ldiecfiitn eM uatbesxlL_oncukl(lMaubtleex *_ Naublslla_bnloen
n      u| l                      ^l
 mu) ABSL_EXCIn file included from Ls2/s2wedge_relations.ccU:S18I:
VIn file included from E../src/s2/s2wedge_relations.h_:L24O:
CIn file included from K../src/s2/s2point.h_:F25U:
NIn file included from C../src/s2/util/coding/coder.hT:I36O:
NIn file included from (../src/s2/base/casts.hm:u36):

In file included from       ../src/s2/base/logging.h| :                            ^21
:
In file included from /usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/base/nullability.h37::
241In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h22::21 :
note: /usr/local/clang/include/absl/log/internal/check_op.hexpanded from macro 'absl_nonnull':
507:1  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
ef/usr/local/clang/include/absl/log/internal/check_op.hi:n489e: 47a:b snote: lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'_
non  n489u | l l   _ N o ncnounlslt
       T| 1                     ^&
 v1, const T2& v2, const char* absl_nonIn file included from ns2/s2text_format.ccu:l16l:
 In file included from e../src/s2/s2text_format.hx:p34r:
tIn file included from e../src/s2/mutable_s2shape_index.hx:t30):
 In file included from {/usr/local/clang/include/absl/container/btree_map.h : 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h\:
73      :
| In file included from                                               ^/usr/local/clang/include/absl/strings/cord.h
:94:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h241::3122:
: /usr/local/clang/include/absl/synchronization/mutex.h:note: 641expanded from macro 'absl_nonnull':
68:   241warning:  | 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]#
defin  e641  | a b selx_pnloincniutl lM u_tNeoxnLnouclkl(
M      u| t                     ^e
x& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicIn file included from is2/s2wedge_relations.cct: 18M:
uIn file included from t../src/s2/s2wedge_relations.he:x24L:
oIn file included from c../src/s2/s2point.hk:(25M:
uIn file included from t../src/s2/util/coding/coder.he:x36*:
 In file included from a../src/s2/base/casts.hb:s36l:
_In file included from n../src/s2/base/logging.ho:n21n:
uIn file included from l/usr/local/clang/include/absl/log/check.hl: 37m:
uIn file included from ,/usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
n/usr/local/clang/include/absl/log/internal/check_op.hs:t507 :C1o:n dwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
io/usr/local/clang/include/absl/log/internal/check_op.hn:&497 :c32o:n dnote: )expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

      |                             ^
  497 | /usr/local/clang/include/absl/base/nullability.h : 241i:n22l:i nnote: eexpanded from macro 'absl_nonnull' 
co  n241s | t#edxepfri nceo nasbts lc_hnaorn*n ualbls l__Nnounlnlualbll
e       | n                     ^a
me##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      | In file included from                                   ^s2/s2shapeutil_contains_brute_force.cc
:18:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2shapeutil_contains_brute_force.h241::2122:
:In file included from  ../src/s2/s2point.h:note: 27expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2coder.h:23:
  In file included from 241/usr/local/clang/include/absl/status/status.h | :#67d:
eIn file included from f/usr/local/clang/include/absl/status/internal/status_internal.hi:n29e:
 a/usr/local/clang/include/absl/strings/cord.hb:s1268l:_51n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _ N1268o | ninnulliln
e       | v                     ^o
id Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inlinIn file included from es2/s2text_format.cc :v16o:
iIn file included from d../src/s2/s2text_format.h :C34o:
rIn file included from d../src/s2/mutable_s2shape_index.h:::30I:
nIn file included from l/usr/local/clang/include/absl/container/btree_map.hi:n66e:
RIn file included from e/usr/local/clang/include/absl/container/internal/btree.hp::73::
EIn file included from m/usr/local/clang/include/absl/strings/cord.hp:l94a:
cIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.hT:r31e:
e/usr/local/clang/include/absl/synchronization/mutex.h(:C710o:r74d:R ewarning: p'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]*
 absl  _710n | o n neuxlpll irceipt, 
W      r| i                                                  ^t
erM/usr/local/clang/include/absl/base/nullability.hu:t241e:x22L:o cnote: kexpanded from macro 'absl_nonnull'(
Mu  t241e | x#&d emfui nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriteIn file included from rs2/s2shapeutil_contains_brute_force.ccM:u18t:
eIn file included from x../src/s2/s2shapeutil_contains_brute_force.hL:o21c:
kIn file included from (../src/s2/s2point.hM:u27:
tIn file included from e../src/s2/s2coder.hx:*23 :
aIn file included from b/usr/local/clang/include/absl/status/status.hs:l67_:
nIn file included from o/usr/local/clang/include/absl/status/internal/status_internal.hn:n29u:
l/usr/local/clang/include/absl/strings/cord.hl: 1282m:u47):
       | warning:                                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/base/nullability.h:241 :128222 | :i nnote: lexpanded from macro 'absl_nonnull'i
ne   241v | o#idde fCionred :a:bIsnll_innoenRneupl:l: S_eNtoTnrneuel(lC
o      r| d                     ^R
ep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2text_format.ccd:e16f:
iIn file included from n../src/s2/s2text_format.he: 34a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_30n:
oIn file included from n/usr/local/clang/include/absl/container/btree_map.hn:u66l:
lIn file included from  /usr/local/clang/include/absl/container/internal/btree.h_:N73o:
nIn file included from n/usr/local/clang/include/absl/strings/cord.hu:l94l:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                     ^31
:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BYIn file included from (s2/s2shapeutil_contains_brute_force.cct:h18i:
sIn file included from )../src/s2/s2shapeutil_contains_brute_force.h,:
21      :
| In file included from                                                                          ^~~~../src/s2/s2point.h
:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 In file included from 1290s2/s2wedge_relations.cc | :i18n:
/usr/local/clang/include/absl/synchronization/mutex.hlIn file included from :i../src/s2/s2wedge_relations.h731n::e2435 :
:vIn file included from  o../src/s2/s2point.hwarning: i:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d25
 :
CIn file included from o../src/s2/util/coding/coder.h  r:731d36 | ::
 : In file included from Ien../src/s2/base/casts.hlx:pi36ln:
iecIn file included from Ri../src/s2/base/logging.hte: p21W::
r:In file included from iSt/usr/local/clang/include/absl/log/check.hee:rtM37Tu:
rtIn file included from ee/usr/local/clang/include/absl/log/internal/check_impl.hxeL:Oo21crk:
E(/usr/local/clang/include/absl/log/internal/check_op.hMm:upt511te:yx13(*:C  aobwarning: rstype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]dl
R_enpo  *n511 nIn file included from  | acbouns2/s2shapeutil_coding.ccslsl:lt  28_mc:
nuh,In file included from  ualr../src/s2/s2lax_polygon_shape.h*c la:bosal36nb_:
nsutlllIn file included from a be../src/s2/s2polygon.hCl :roen 34Cehde:
picIn file included from ,tk../src/s2/mutable_s2shape_index.hs
i:t      ro33n| c:
&                                                     ^mIn file included from  
cp../src/s2/base/commandlineflags.hto:n/usr/local/clang/include/absl/base/nullability.hdr21u:):
e257I
In file included from /usr/local/clang/include/absl/flags/flag.h:40:m      p:
l23| (/usr/local/clang/include/absl/flags/commandlineflag.h:                                  ^
: 
      163note: | :/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nullable'            ^56:

:241   :257warning: /usr/local/clang/include/absl/base/nullability.h22 | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]::#
d257e f:inote: n23e   expanded from macro 'absl_nonnull'a:163
b s |   note: l _241nexpanded from macro 'absl_nullable'u  | b
ol#ldoe  albf257i l | enP#a e_dre NsuefailnlFbes aarlo_mnbob(salnel
bn_      sun| l                      ^lull :_
Nlo:anbslnet url_iNln
ug      _l| vl                     ^aib
elwe 
v      a| l                      ^u
e, std:In file included from :s2/s2wedge_relations.ccs:t18r:
iIn file included from n../src/s2/s2wedge_relations.hg:*24 :
aIn file included from b../src/s2/s2point.hs:l25_:
nIn file included from o../src/s2/util/coding/coder.hn:n36u:
lIn file included from l../src/s2/base/casts.h :e36r:
rIn file included from o../src/s2/base/logging.hr:)21;:

In file included from       /usr/local/clang/include/absl/log/check.h| :                                                       ^37
:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/check_op.h241::51222::17 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  241   | 512# | In file included from d s2/s2shapeutil_contains_brute_force.cc e:f i 18nc:
eoIn file included from n s../src/s2/s2shapeutil_contains_brute_force.hta :bc21hs:
laIn file included from r_*../src/s2/s2point.hn :oa27nb:
snlIn file included from u_../src/s2/s2coder.hln:lu23l l:
a_In file included from Nb/usr/local/clang/include/absl/status/status.hol:en 67ns:
1uIn file included from ,l/usr/local/clang/include/absl/status/internal/status_internal.h lc:
o29n      s:
t| /usr/local/clang/include/absl/strings/cord.h                     ^ :
c1301h:a56r:*  warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]b
sl_n u1301l | lianbllien es 2v,o
i      d|                  ^C
or/usr/local/clang/include/absl/base/nullability.hd::257::I23n:l inote: nexpanded from macro 'absl_nullable'e
Re  p257: | :#CdoemfmiinteT raebes(lc_onnusltl aCbolred R_eNpu*l laabIn file included from bsIn file included from s2/s2shapeutil_coding.cclls2/s2text_format.cc:e_:n28
16u:
l      :
In file included from l| a                      ^In file included from ../src/s2/s2lax_polygon_shape.hb
l../src/s2/s2text_format.he:: 3634o:
:
lIn file included from In file included from d../src/s2/s2polygon.h../src/s2/mutable_s2shape_index.hIn file included from _::s2/s2wedge_relations.ccr34e30::
p:
18In file included from ,In file included from :
../src/s2/mutable_s2shape_index.h
/usr/local/clang/include/absl/container/btree_map.hIn file included from :      :../src/s2/s2wedge_relations.h33| 66::
                                                       ^:
24In file included from 
In file included from :
../src/s2/base/commandlineflags.h/usr/local/clang/include/absl/container/internal/btree.hIn file included from /usr/local/clang/include/absl/base/nullability.h::../src/s2/s2point.h:2173:257:
:
25:In file included from In file included from :
23/usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/strings/cord.hIn file included from :::../src/s2/util/coding/coder.h 4094::
note: :
36/usr/local/clang/include/absl/flags/commandlineflag.hexpanded from macro 'absl_nullable'
In file included from   257 | /usr/local/clang/include/absl/strings/internal/cordz_info.h#:d31e:
f/usr/local/clang/include/absl/synchronization/mutex.hi:n801e: 20a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
null  a801b | l e  C_oNnudliltaibolne(
b      o| o                      ^l
 (*absl_nonnull func)(In file included from vs2/s2shapeutil_contains_brute_force.cco:i18d:
*In file included from  ../src/s2/s2shapeutil_contains_brute_force.ha:b21s:
lIn file included from _../src/s2/s2point.hn:u27l:
lIn file included from a../src/s2/s2coder.hb:i23l:
iIn file included from t/usr/local/clang/include/absl/status/status.hy:_67u:
nIn file included from k/usr/local/clang/include/absl/status/internal/status_internal.hn:o29w:
n/usr/local/clang/include/absl/strings/cord.h):,1302
:      50| :                   ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:  1302 | note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
CordRepIn file included from *s2/s2text_format.cc :a16b:
sIn file included from l../src/s2/s2text_format.h_:n34o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from r/usr/local/clang/include/absl/container/btree_map.he:p66,:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                                 ^73
:
In file included from /usr/local/clang/include/absl/strings/cord.h:/usr/local/clang/include/absl/base/nullability.h94::
241In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h22::31 :
note: /usr/local/clang/include/absl/synchronization/mutex.hexpanded from macro 'absl_nonnull':
801:45  :241  | warning: #type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]d
efi  n801e |   a bCsoln_dniotninounl(lb o_oNlo n(n*ualbls
l      _| n                     ^o
nnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullabiliIn file included from ts2/s2shapeutil_contains_brute_force.ccy:_18u:
nIn file included from k../src/s2/s2shapeutil_contains_brute_force.hn:o21w:
nIn file included from  ../src/s2/s2point.h_:N27u:
lIn file included from l../src/s2/s2coder.h_:u23n:
sIn file included from p/usr/local/clang/include/absl/status/status.he:c67i:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.he:d29
:
      | /usr/local/clang/include/absl/strings/cord.h                                 ^:
1312:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1312 | inlineIn file included from  s2/s2text_format.cca:b16s:
lIn file included from :../src/s2/s2text_format.h::c34o:
rIn file included from d../src/s2/mutable_s2shape_index.h_:i30n:
tIn file included from e/usr/local/clang/include/absl/container/btree_map.hr:n66a:
lIn file included from :/usr/local/clang/include/absl/container/internal/btree.h::C73o:
rIn file included from d/usr/local/clang/include/absl/strings/cord.hR:e94p:
*In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.ha:b31s:
l/usr/local/clang/include/absl/synchronization/mutex.h_:n802u:l19l:a bwarning: ltype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
 Co  r802d | : : I n l i n e R e p : :vcolieda*r (a)b s{l
_      n| u                                     ^l
la/usr/local/clang/include/absl/base/nullability.hb:i257l:i23t:y _note: uexpanded from macro 'absl_nullable'n
kn  o257w | n# daerfgi)n;e
       a| b                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u289l:l34a:b lnote: eexpanded from macro 'absl_nullability_unknown' 
_N  u289l | l#adbelfei
n      e|                        ^a
bsl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/s2shapeutil_contains_brute_force.cc814: | 18 :
 In file included from C../src/s2/s2shapeutil_contains_brute_force.ho:n21d:
iIn file included from t../src/s2/s2point.hi:o27n:
(In file included from b../src/s2/s2coder.ho:o23l:
 In file included from (/usr/local/clang/include/absl/status/status.h*:a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h_:n29o:
n/usr/local/clang/include/absl/strings/cord.hn:u1321l:l48 :f uwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
)(T*  a1321b | siln_lniunlel avboiildi tCyo_rudn:k:nIonwlni)n,e
R      e| p                   ^:
:C/usr/local/clang/include/absl/base/nullability.ho:p241y:T22o:A rnote: rexpanded from macro 'absl_nonnull'a
y(  c241h | a#rd*e faibnsel _anbosnln_unloln ndusltl)  _cNoonnsntu l{l

            | |                                                ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2text_format.ccexpanded from macro 'absl_nonnull':
16:
In file included from   ../src/s2/s2text_format.h241: | 34#:
dIn file included from e../src/s2/mutable_s2shape_index.hf:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o73n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l814
:      42| :                     ^ 
warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecifie:
In file included from ../src/s2/base/casts.h::36:
In file included from 193../src/s2/base/logging.h::2721::
 In file included from /usr/local/clang/include/absl/log/check.hwarning: :37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h  :193512 | : 47 :v iwarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
ual vo  i512d |   R e a dc(ovnositd *c haabrs*l _anbosnln_unlull ldasbtl)e  cso1n,s tc o=n s0t; 
c      h| a                          ^r
* ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
le   241s | 2#,d
e      f| i                                              ^n
e ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23o:n nnote: uexpanded from macro 'absl_nullable'l
l _  N257o | n#nduelfli
n      e|                       ^a
bsl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25:
In file included from ../src/s2/util/coding/coder.h:36:
In file included from ../src/s2/base/casts.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:25d
      |                                  ^
In file included from In file included from s2/util/math/exactfloat/exactfloat.ccs2/s2text_format.cc::1816:
:
In file included from In file included from ../src/s2/util/math/exactfloat/exactfloat.h../src/s2/s2text_format.h::12634:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/mutable_s2shape_index.h::2130:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/container/btree_map.h::3766:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/internal/btree.h::2173:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/strings/cord.h::4194:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::2631:
:
In file included from /usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/log/internal/log_message.h::83153::
46: /usr/local/clang/include/absl/types/source_location.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]113
:19:   warning: 831type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
        113t | y p e n a m ec oanbsstl :c:htayrp*e _aibdseln_tniotnyn<uTl>l: :ftiylpee_*n aambes l=_ n_u_lbluaiblitliint_yF_IuLnEk(n)o)w n{

            | |                                              ^                  ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h289::24134::22 :note:  expanded from macro 'absl_nullability_unknown'
note: expanded from macro 'absl_nonnull'  
289 |   #241d | e#fdienfei naeb salb_snlu_lnloanbniullilt y__Nuonnknnuolwln
       _| N                     ^u
ll_unspecified
      |                                  ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from In file included from ../src/s2/util/math/exactfloat/exactfloat.hs2/s2text_format.cc::12616:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2text_format.h::2134:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/mutable_s2shape_index.h::3730:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/container/btree_map.h::2166:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/container/internal/btree.h::4173:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.h/usr/local/clang/include/absl/strings/cord.h::2694:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::5331:
:
/usr/local/clang/include/absl/types/source_location.h/usr/local/clang/include/absl/synchronization/mutex.h::133844::2510::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

    844133 |  |      c o n sTt*e xapbrs lc_onnosntn uclhla ro*b jaebcstl,_
n      o| n         ^n
ul/usr/local/clang/include/absl/base/nullability.hl: 241f:i22l:e _note: nexpanded from macro 'absl_nonnull'a
me  (241) |  #cdoenfsitn en oaebxscle_pnto n{n
u      l| l                        ^ 
_N/usr/local/clang/include/absl/base/nullability.ho:n241n:u22l:l 
note:       expanded from macro 'absl_nonnull'| 
                     ^
  241 | #define absl_nonnIn file included from us2/s2text_format.ccl:l16 :
_In file included from N../src/s2/s2text_format.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl:
30      :
| In file included from                      ^/usr/local/clang/include/absl/container/btree_map.h
:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
s2/util/math/exactfloat/exactfloat.cc:18:
  In file included from 845../src/s2/util/math/exactfloat/exactfloat.h | : 126 :
 In file included from  ../src/s2/base/logging.h : 21b:
oIn file included from o/usr/local/clang/include/absl/log/check.hl: 37(:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21::
:In file included from t/usr/local/clang/include/absl/log/internal/check_op.hy:p41e:
_In file included from i/usr/local/clang/include/absl/log/internal/strip.hd:e26n:
tIn file included from i/usr/local/clang/include/absl/log/internal/log_message.ht:y53<:
T/usr/local/clang/include/absl/types/source_location.h>::142::t25y:p ewarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
* a  b142s | l _ ncoonnnsutlelx pmre tchoonds)t( )c)h;a
r      *|                                              ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 f  u241n | c#tdieofni_nnea maeb(s)l _cnoonnsntu lnlo e_xNcoenpntu l{l

            | |                         ^                     ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonIn file included from ns2/s2text_format.ccu:l16l:
 In file included from _../src/s2/s2text_format.hN:o34n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                     ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from   s2/util/math/exactfloat/exactfloat.cc850: | 18 :
 In file included from  ../src/s2/util/math/exactfloat/exactfloat.h : 126 :
cIn file included from o../src/s2/base/logging.hn:s21t:
 In file included from T/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from  /usr/local/clang/include/absl/log/internal/strip.ho:b26j:
eIn file included from c/usr/local/clang/include/absl/log/internal/log_message.ht:,53
:
      /usr/local/clang/include/absl/types/source_location.h| :               ^150
:40:/usr/local/clang/include/absl/base/nullability.h :warning: 241type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
22: note:   expanded from macro 'absl_nonnull'150
 |     241  |  # d e f i n e   a b s l _ n o n n u l l   _ N ocnonnusltl 
c      h| a                     ^r
* absl_nonnull fiIn file included from ls2/s2text_format.cce:_16n:
aIn file included from m../src/s2/s2text_format.he:)34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                                       ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24166::
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :note: 73expanded from macro 'absl_nonnull':

In file included from s2/util/coding/coder.cc/usr/local/clang/include/absl/strings/cord.h  ::2415194 | ::
#3In file included from d:/usr/local/clang/include/absl/strings/internal/cordz_info.he :fwarning: 31itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
n
/usr/local/clang/include/absl/synchronization/mutex.he: 851   a:51b45 | s: l  _warning: Sntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]2o
_nCnHu  El851Cl |  K __ L NE o( nb unbfuo_ol,ll  l
(ia      mb| i                     ^stl
_:):;t y p/e/_ iCdaetncthi ttyh<eT >b:u:ftfyepre :o:v*e rafblsolw_.n
In file included from o      ns2/util/math/exactfloat/exactfloat.cc| n  ^:u
l18l:
 ../src/s2/base/logging.hmIn file included from :e../src/s2/util/math/exactfloat/exactfloat.h39t::h12621o:
:dIn file included from  )../src/s2/base/logging.hnote: (expanded from macro 'S2_CHECK_LE':)

21         :
39| In file included from  |                                             ^/usr/local/clang/include/absl/log/check.h#
d:e/usr/local/clang/include/absl/base/nullability.h37f:i:
241nIn file included from :e/usr/local/clang/include/absl/log/internal/check_impl.h22 ::S21 2:
note: _expanded from macro 'absl_nonnull'In file included from C
H/usr/local/clang/include/absl/log/internal/check_op.h  E:241C41 | K#:
_dLIn file included from eEf/usr/local/clang/include/absl/log/internal/strip.h iC:nH26eE:
 CaIn file included from Kb_/usr/local/clang/include/absl/log/internal/log_message.hsL:lE53_
n:
      o/usr/local/clang/include/absl/types/source_location.h| n                    ^:n
165u:/usr/local/clang/include/absl/log/check.hl15:l:122  :_3Nwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o nnote: 
nexpanded from macro 'CHECK_LE'u
  l165l   | 
122        |  |                       ^c 
AoBnSsLt_ LcOhGa_rI*N TaEbRsIn file included from Nls2/s2text_format.ccA_:Ln16_o:
nCIn file included from nH../src/s2/s2text_format.hEu:Cl34Kl:
_ In file included from Lf../src/s2/mutable_s2shape_index.hEi:_l30Ie:
M_In file included from Pn/usr/local/clang/include/absl/container/btree_map.hLa:(m66(e:
v_In file included from a /usr/local/clang/include/absl/container/internal/btree.hl=:1 73)":
,"In file included from  ;/usr/local/clang/include/absl/strings/cord.h#
:v      94a| :
l              ^In file included from 1
/usr/local/clang/include/absl/strings/internal/cordz_info.h,:/usr/local/clang/include/absl/base/nullability.h 31(::
v241/usr/local/clang/include/absl/synchronization/mutex.ha::l228552::) 34,note: : expanded from macro 'absl_nonnull' #
warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  a
241l | 2#d)e
f:
      iIn file included from | n../src/s2/util/coding/coder.h  ^e:
 36a/usr/local/clang/include/absl/log/internal/check_impl.h:
b:In file included from s53../src/s2/base/casts.hl::_336n::
o In file included from nnote: ../src/s2/base/logging.hnexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL':u
21l:
lIn file included from     /usr/local/clang/include/absl/log/check.h:3753:
_ | In file included from  N/usr/local/clang/include/absl/log/internal/check_impl.h o:An21Bn:
Su/usr/local/clang/include/absl/log/internal/check_op.hLl:_l521L
:O      17G| :_                     ^ I
warning: Ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]T
ERNA  L521_ | C H E C Kc_oOnPs(tC hcehcakr_*L Ea,b s<l=_,n uvlalla1b,l ev asl11,_ tceoxnts,t  vcahla2r,*  vaabls2l__tneuxltl)a
b      l| e  ^ 
s2/usr/local/clang/include/absl/log/internal/check_op.h,:
68      :| 22                ^:
 note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'/usr/local/clang/include/absl/base/nullability.h
:257:23:    68 | note:  expanded from macro 'absl_nullable' 
wh  i257l | e# d(ecfoinnset  acbhsalr_*n ualblsalb_lneu l_lNaublllea balbes
l      _| l                      ^o
g_internalIn file included from _s2/s2wedge_relations.ccc:h18e:
cIn file included from k../src/s2/s2wedge_relations.h_:o24p:
_In file included from r../src/s2/s2point.he:s25u:
lIn file included from t../src/s2/util/coding/coder.h : 36 :
 In file included from  ../src/s2/base/casts.h : 36 :
 In file included from  ../src/s2/base/logging.h :\21
:
      In file included from | /usr/local/clang/include/absl/log/check.h                     ^:
37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/base/nullability.h:
:/usr/local/clang/include/absl/log/internal/check_op.h257::52123::47 : note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  257 |   #521d | e f i n ec oanbsstl _cnhualrl*a balbes l__Nnuullllaabbllee
       s| 1                      ^,
 const char* absl_nullable In file included from ss2/s2shapeutil_coding.cc2:,28
:
      In file included from | ../src/s2/s2lax_polygon_shape.h                                              ^:
36:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2polygon.h::25734::
23In file included from :../src/s2/mutable_s2shape_index.h :33note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/base/commandlineflags.h:21  :
257In file included from  | /usr/local/clang/include/absl/flags/flag.h#:d42e:
fIn file included from i/usr/local/clang/include/absl/flags/internal/flag.hn:e30 :
ab/usr/local/clang/include/absl/base/call_once.hs:l52_:n24u:lIn file included from  ls2/util/math/exactfloat/exactfloat.ccwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:b
l18e:
    _In file included from 52N../src/s2/util/math/exactfloat/exactfloat.h | u:slt126ld:
a:bIn file included from :la../src/s2/base/logging.het:
o21      m:
| iIn file included from                       ^c/usr/local/clang/include/absl/log/check.h
<:u37i:
nIn file included from tIn file included from /usr/local/clang/include/absl/log/internal/check_impl.h3s2/s2wedge_relations.cc2::_2118t:
:
>In file included from In file included from */usr/local/clang/include/absl/log/internal/check_op.h../src/s2/s2wedge_relations.h ::a4124b:
:
sIn file included from In file included from l/usr/local/clang/include/absl/log/internal/strip.h../src/s2/s2point.h_::n2625o:
:
nIn file included from /usr/local/clang/include/absl/log/internal/log_message.hn../src/s2/util/coding/coder.hu::l7136l::
 26In file included from C:../src/s2/base/casts.ho :n36twarning: :
rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from o
../src/s2/base/logging.hl:W21o   :
r71In file included from d | /usr/local/clang/include/absl/log/check.h (: 
37L      :
o| In file included from g                       ^/usr/local/clang/include/absl/log/internal/check_impl.hM
:e21s:
s/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/base/nullability.ha::g522241e::(1722c::o  nwarning: note: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull't

   c  522h241 | a |  #r d* e  fcaoibnnsset  lacb_hsnalor_*nn onanubnslulll_l n of_niNnlouenln,l u ilelnx
tp       rl| t                     ^ie
xnte),;

            | |                          ^                ^
In file included from 
s2/s2shapeutil_coding.cc/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h:28:241:
241:In file included from :22../src/s2/s2lax_polygon_shape.h22::: 36 note: :
expanded from macro 'absl_nonnull'note: In file included from expanded from macro 'absl_nonnull'
../src/s2/s2polygon.h
:  34  241:
241 | In file included from  | #../src/s2/mutable_s2shape_index.h#d:de33ef:
fiinIn file included from ne../src/s2/base/commandlineflags.he : a21ab:
bsIn file included from sl/usr/local/clang/include/absl/flags/flag.hl_:_n42no:
onIn file included from nn/usr/local/clang/include/absl/flags/internal/flag.hnu:ul30ll:
l /usr/local/clang/include/absl/base/call_once.h _:_N53No:on22nn:un luwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]ll


               | | 53                     ^                     ^ | 
 
   absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #definIn file included from es2/util/math/exactfloat/exactfloat.cc :a18b:
sIn file included from l../src/s2/util/math/exactfloat/exactfloat.h_:n126o:
nIn file included from n../src/s2/base/logging.hu:l21l:
 In file included from _/usr/local/clang/include/absl/log/check.hN:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21
:
      In file included from | /usr/local/clang/include/absl/log/internal/check_op.h                     ^:
41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2shapeutil_coding.ccb:s28l:
_In file included from n../src/s2/s2lax_polygon_shape.ho:n36n:
uIn file included from l../src/s2/s2polygon.hl: 34_:
NIn file included from o../src/s2/mutable_s2shape_index.hn:n33u:
lIn file included from l../src/s2/base/commandlineflags.h
:      21| :
                     ^In file included from 
/usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::In file included from as2/util/math/exactfloat/exactfloat.cct:o18m:
iIn file included from c../src/s2/util/math/exactfloat/exactfloat.h<:u126i:
nIn file included from t../src/s2/base/logging.h3:221_:
tIn file included from >/usr/local/clang/include/absl/log/check.h*: 37a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.hl:_21n:
oIn file included from n/usr/local/clang/include/absl/log/internal/check_op.hn:u41l:
lIn file included from  /usr/local/clang/include/absl/log/internal/strip.hb:a26s:
e/usr/local/clang/include/absl/log/internal/log_message.h_:i80n:t26e:r nwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
::C   o80n | t r oLloWgoMreds(s
a      g| e                                ^(
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneofninnuel la bfsill_en,o ninnutl ll i_nNeo,n
n      u| l                         ^l

      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | In file included from #s2/s2shapeutil_coding.ccd:e28f:
iIn file included from n../src/s2/s2lax_polygon_shape.he: 36a:
bIn file included from s../src/s2/s2polygon.hl:_34n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u33l:
lIn file included from  ../src/s2/base/commandlineflags.h_:N21o:
nIn file included from n/usr/local/clang/include/absl/flags/flag.hu:l42l:

In file included from       /usr/local/clang/include/absl/flags/internal/flag.h| :                     ^30
:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flaIn file included from gs2/util/math/exactfloat/exactfloat.cc*: 18a:
bIn file included from s../src/s2/util/math/exactfloat/exactfloat.hl:_126n:
oIn file included from n../src/s2/base/logging.hn:u21l:
lIn file included from  /usr/local/clang/include/absl/log/check.hf:l37a:
gIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h;:
21      :
| In file included from                  ^/usr/local/clang/include/absl/log/internal/check_op.h
:41/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/log/internal/strip.h::2226::
 /usr/local/clang/include/absl/log/internal/log_message.hnote: :expanded from macro 'absl_nonnull'82
:26:   241warning:  | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]#
def   i82n | e   aLbosglM_ensosnanguel(lc o_nNsotn ncuhlalr
*       | a                     ^b
sl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.hs2/s2text_format.cc::11916::
41In file included from :../src/s2/s2text_format.h :warning: 34type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/mutable_s2shape_index.h:30:
  In file included from 119/usr/local/clang/include/absl/container/btree_map.h | : 66 :
LIn file included from o/usr/local/clang/include/absl/container/internal/btree.hg:M73e:
sIn file included from s/usr/local/clang/include/absl/strings/cord.ha:g94e:
&In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hT:o31S:
i/usr/local/clang/include/absl/synchronization/mutex.hn:k886A:l31s:o (warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl:  :886L | o g Seixnpkl*i caibts lC_onnodnintuiloln (scionnks)t; 
T      *|                                          ^a
bs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 o  b241j | )#
d      e| f                              ^i
ne /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | _#Ndoenfniunlel 
a      b| s                     ^l
_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* abIn file included from ss2/s2text_format.ccl:_16n:
oIn file included from n../src/s2/s2text_format.hn:u34l:
lIn file included from  ../src/s2/mutable_s2shape_index.hs:i30n:
kIn file included from )/usr/local/clang/include/absl/container/btree_map.h;:
66      :
| In file included from                                         ^/usr/local/clang/include/absl/container/internal/btree.h
:73/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/cord.h::2294::
 In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 896#:d31e:f iwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
 ab  s896l | _ n oenxnpullilc i_tN oCnonnudlilt
i      o| n                     ^(
const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from In file included from s2/s2text_format.cc../src/s2/util/math/exactfloat/exactfloat.h::16126:
:
In file included from In file included from ../src/s2/s2text_format.h../src/s2/base/logging.h::3421:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/check.h::3037:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/log/internal/check_impl.h::6621:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/internal/check_op.h::7341:
:
In file included from In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/strip.h::9426:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::15831::
32/usr/local/clang/include/absl/synchronization/mutex.h:: 922warning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]48
: warning:   type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]158
 |   L  o922g | M e ssstaagtei&c  obpoeorla tGoura<r<a(nvtoeiedd*E qaubasll(_cnounlslta bCloen d ivt)i o{n
*       | a                               ^b
sl/usr/local/clang/include/absl/base/nullability.h_:n257u:l23l:a bnote: lexpanded from macro 'absl_nullable'e
 a  ,257
 |       #| d                                               ^e
fin/usr/local/clang/include/absl/base/nullability.he: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'u
ll  a257b | l#ed e_fNiunlel aabblsel
_      n| u                      ^l
lable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:In file included from 126s2/s2text_format.cc:
:In file included from 16../src/s2/base/logging.h:
:In file included from 21../src/s2/s2text_format.h:
:In file included from 34/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/mutable_s2shape_index.h:
:In file included from 30/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26/usr/local/clang/include/absl/strings/cord.h:
:/usr/local/clang/include/absl/log/internal/log_message.h94::
161In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h38::31 :
warning: /usr/local/clang/include/absl/synchronization/mutex.htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
923:48:   161warning:  | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 Lo  g923M | e s s a g e &   o p e r a t o r < < ( c o n s t   v o i d *  caobnsslt_ nCuolnldaibtlieo n s2/util/coding/coder.cc*v: )51a :b{3s
:l       _| warning:                                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n

u/usr/local/clang/include/absl/base/nullability.hl:../src/s2/base/logging.hl257:a:39b23:l:In file included from 21e s2/s2shapeutil_contains_brute_force.cc: note: : bexpanded from macro 'absl_nullable'18note: )expanded from macro 'S2_CHECK_LE'
:
;
In file included from   
../src/s2/s2shapeutil_contains_brute_force.h257         : | 39| 21# |                                                ^#:
d
dIn file included from /usr/local/clang/include/absl/base/nullability.heef../src/s2/s2point.h:fi:257in27:ne:
23e In file included from a: ../src/s2/s2coder.hb S:snote: 2expanded from macro 'absl_nullable'_23l
C:
_H  In file included from nE257/usr/local/clang/include/absl/status/status.huC | K#_dLeE: lf67Cli:
nHeaIn file included from bE CaK/usr/local/clang/include/absl/status/internal/status_internal.hlb_:es L29l_E:

_N      /usr/local/clang/include/absl/strings/cord.hnuu| :                    ^ll1505
ll:aa/usr/local/clang/include/absl/log/check.h41bb::ll122 ee:warning:  
3type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_      :
N|  u                      ^note:  l
expanded from macro 'CHECK_LE'1505l
 | aibn  ll122ei | 
 n eA       BvS| o                      ^iL
d_ LCOoGr_dI:N:TCEoRpNyATLo_ACrHrEaCyKI_mLpEl_(IcMhPaLr(*( vaabls1l)_,n o#nvnIn file included from aus2/s2text_format.ccll:l1 16,d :
s(tIn file included from )v a../src/s2/s2text_format.hlc2o)n:s,34 t:
# In file included from v{../src/s2/mutable_s2shape_index.h
a:l      302| :
                                        ^)In file included from 

/usr/local/clang/include/absl/container/btree_map.h      :| 66  ^:
/usr/local/clang/include/absl/base/nullability.h
In file included from :/usr/local/clang/include/absl/container/internal/btree.h241/usr/local/clang/include/absl/log/internal/check_impl.h:In file included from ::73s2/util/math/exactfloat/exactfloat.cc2253:
:::In file included from 18 3/usr/local/clang/include/absl/strings/cord.h:
:note: :expanded from macro 'absl_nonnull'In file included from  94
../src/s2/util/math/exactfloat/exactfloat.h:
  note: :In file included from 241expanded from macro 'ABSL_LOG_INTERNAL_CHECK_LE_IMPL'126/usr/local/clang/include/absl/strings/internal/cordz_info.h | 
#:
:dIn file included from    31e../src/s2/base/logging.h53:
f: | /usr/local/clang/include/absl/synchronization/mutex.hi21 : nA:
948eB In file included from :SaL/usr/local/clang/include/absl/log/check.h10b_s::LlO37 _G:
warning: n_oIn file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]InN/usr/local/clang/include/absl/log/internal/check_impl.h
nTu:E  l21R948l:
 | N AIn file included from  _LN/usr/local/clang/include/absl/log/internal/check_op.h _oC:bnHn41oEuC:
olKll 
(_*In file included from       OaP/usr/local/clang/include/absl/log/internal/strip.h| b(:                     ^sCl26
h_e:
ncu/usr/local/clang/include/absl/log/internal/log_message.hkl_:lLa179Eb:, <35=:,  warning: vtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
l1,   179v | a l 1L_otgeMxets,s avgaeIn file included from l&s2/s2shapeutil_coding.cc2 :,o28p :
evIn file included from ar../src/s2/s2lax_polygon_shape.hla:2t36_o:
trIn file included from e<../src/s2/s2polygon.hx<:t(34)w:

cIn file included from       h../src/s2/mutable_s2shape_index.h| a:  ^r33
_:
tIn file included from /usr/local/clang/include/absl/log/internal/check_op.h*../src/s2/base/commandlineflags.h ::a7521b::
s61In file included from l:/usr/local/clang/include/absl/flags/flag.h_ :nnote: 42expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'u:

lIn file included from l/usr/local/clang/include/absl/flags/internal/flag.h   a:75b30 | l:
 e/usr/local/clang/include/absl/base/call_once.h  :Av111B):;S40
L:_       L| warning:                                   ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]O

G_/usr/local/clang/include/absl/base/nullability.hI:  N257111T: | EvR23oN:iA dLnote:  _Lexpanded from macro 'absl_nullable'CoHw
ELC  eKv257(e: | l#:dCaaeblsfllOi:n:ncieem(p alabisbcsli:lt_:n_uolcnaclste<a_cfbolnlaseg t*_  Ncuahblaslral*_b lnaoebns
nlu_      lnl| o                       ^nf
nlualgl,> (C a l l a b\l
e      &| &                                                            ^ 
fn,/usr/local/clang/include/absl/base/nullability.h
:      241| :                                       ^22
: note: /usr/local/clang/include/absl/base/nullability.hexpanded from macro 'absl_nonnull':
241:22  :241  | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnIn file included from sus2/util/math/exactfloat/exactfloat.ccll:_ln18 o_:
nNIn file included from no../src/s2/util/math/exactfloat/exactfloat.hunl:nl126u l:
_lNIn file included from 
o../src/s2/base/logging.h      n:| n                     ^21u
l:
lIn file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                     ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag)le eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullpIn file included from tr;s2/s2shapeutil_contains_brute_force.cc
:      18| :
                                               ^In file included from 
../src/s2/s2shapeutil_contains_brute_force.h:21/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2point.h::2227::
 In file included from ../src/s2/s2coder.hnote: :expanded from macro 'absl_nonnull'23
:
In file included from /usr/local/clang/include/absl/status/status.h  :24167 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
ne/usr/local/clang/include/absl/strings/cord.h :a1514b:s29l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null  _1514N | o n n u lclo
r      d| _                     ^i
nternal::CordRep* absl_noIn file included from ns2/s2text_format.ccn:u16l:
lIn file included from  ../src/s2/s2text_format.ht:r34e:
eIn file included from )../src/s2/mutable_s2shape_index.h :{30
:
      In file included from | /usr/local/clang/include/absl/container/btree_map.h                            ^:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:/usr/local/clang/include/absl/base/nullability.h73::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 951#:d9e:f iwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
 ab  s951l | _ n ovnoniudl*l  a_bNsoln_nnuullll
a      b| l                     ^e
 arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from 94s2/s2shapeutil_contains_brute_force.cc:
:In file included from 18/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2shapeutil_contains_brute_force.h:
:21/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 956../src/s2/s2point.h::5227::
 In file included from ../src/s2/s2coder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]23
:
In file included from /usr/local/clang/include/absl/status/status.h:67  :
956In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29s:
t/usr/local/clang/include/absl/strings/cord.ha:t1525i:c29 :b owarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 Ca s1525t | A n d C aclolrFdu_nicnttieornn(aclon:s:tC oCrodnRdeipt*i oanb*s la_bnsoln_nnuolnln utlrle ec)) ;{

            | |                                                    ^                            ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

    241241 |  | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* abIn file included from ss2/s2shapeutil_contains_brute_force.ccl:_18n:
oIn file included from n../src/s2/s2shapeutil_contains_brute_force.hn:u21l:
lIn file included from  ../src/s2/s2point.hc:)27;:

In file included from       ../src/s2/s2coder.h| :                                                 ^23
:
In file included from /usr/local/clang/include/absl/status/status.h/usr/local/clang/include/absl/base/nullability.h::67241:
:In file included from 22/usr/local/clang/include/absl/status/internal/status_internal.h:: 29:
note: /usr/local/clang/include/absl/strings/cord.hexpanded from macro 'absl_nonnull':
1530:55  :241  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin e1530  | aibnslli_nneo nCnourldl: :_CNhIn file included from ous2/util/math/exactfloat/exactfloat.ccnn:kn18Iu:
tlIn file included from elr../src/s2/util/math/exactfloat/exactfloat.h
a:      t126| o                     ^:
r
In file included from :../src/s2/base/logging.h::C21h:
uIn file included from n/usr/local/clang/include/absl/log/check.hk:I37t:
eIn file included from In file included from rs2/s2text_format.cca/usr/local/clang/include/absl/log/internal/check_impl.ht::o1621r:
(:
cIn file included from In file included from ../src/s2/s2text_format.ho/usr/local/clang/include/absl/log/internal/check_op.h:n:34s41:
t:
In file included from  In file included from ../src/s2/mutable_s2shape_index.hC/usr/local/clang/include/absl/log/internal/strip.h:o:30r26:
d:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha/usr/local/clang/include/absl/log/internal/log_message.hb::s66l319_:
:nIn file included from 20o/usr/local/clang/include/absl/container/internal/btree.hn::n 73uwarning: l:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]lIn file included from 
 /usr/local/clang/include/absl/strings/cord.hc:o94r:
  dIn file included from 319/usr/local/clang/include/absl/strings/internal/cordz_info.h) | :  31{ :

 /usr/local/clang/include/absl/synchronization/mutex.h       c| o:                                                      ^n961
s:t34/usr/local/clang/include/absl/base/nullability.h ::w c241hwarning: :atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22r
_:t *  note:  expanded from macro 'absl_nonnull'961a
b | s  l _241n  | u#sldleatfbailtenie c cao bnbsslto_&noo nvln) u;C
la      ll | l_                   ^BN
oynRneu/usr/local/clang/include/absl/base/nullability.hfl:(l257
c:      o23| n:                     ^s t
note:  expanded from macro 'absl_nullable'T
*   a257b | s#ld_enfoinnneu lalb ssle_lnfu)l l{a
b      l| e                                 ^ 
_N/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote: 
expanded from macro 'absl_nonnull'      
|                       ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2text_format.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1621:
:
In file included from In file included from ../src/s2/s2text_format.h/usr/local/clang/include/absl/log/internal/check_op.h::3441:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/strip.h::3026:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/container/btree_map.h::32166::
52In file included from :/usr/local/clang/include/absl/container/internal/btree.h :warning: 73type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h:94:
  In file included from 321/usr/local/clang/include/absl/strings/internal/cordz_info.h | :i31n:
l/usr/local/clang/include/absl/synchronization/mutex.hi:n975e: 31L:o gwarning: Mtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
ssa  g975e | &   LionglMienses avgoei:d: oRpeeardaCtaolrl<b<a(cwkc(hTa*r _atb*s la_bnsoln_nnuullll acballel bva)c k{)
       c| o                                                   ^n
st/usr/local/clang/include/absl/base/nullability.h :{257
:      23| :                              ^ 
note: expanded from macro 'absl_nullable'/usr/local/clang/include/absl/base/nullability.h
:241:  22257: |  #note: dexpanded from macro 'absl_nonnull'e
fi  n241e |  #adbesfli_nneu lalbasbll_en o_nNnuulllla b_lNeo
n      n| In file included from u                      ^
s2/s2winding_operation.cc: 19:
{In file included from 
../src/s2/s2winding_operation.h      :| 23:
               ^In file included from 
../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/base/nullability.h::43241:
:In file included from 22/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
In file included from   /usr/local/clang/include/absl/strings/cord.h241: | 86#:
de/usr/local/clang/include/absl/strings/cord_analysis.hf:i32n:e47 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nonnu   l32l |  s_iNzoen_ntu lGle
t      E| s                     ^t
imatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_noIn file included from ns2/s2shapeutil_coding.ccn:u28l:
lIn file included from  ../src/s2/s2lax_polygon_shape.h_:N36o:
nIn file included from n../src/s2/s2polygon.hu:l34l:

In file included from       ../src/s2/mutable_s2shape_index.h| :                     ^33In file included from 
:
s2/util/math/exactfloat/exactfloat.ccIn file included from :../src/s2/base/commandlineflags.h18::
21In file included from :
../src/s2/util/math/exactfloat/exactfloat.hIn file included from :/usr/local/clang/include/absl/flags/flag.h126::
42In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/flags/internal/flag.h21::
30In file included from :
/usr/local/clang/include/absl/log/check.h:/usr/local/clang/include/absl/base/call_once.h37::
200In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h40:In file included from :21s2/s2winding_operation.cc :
:warning: In file included from 19type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/log/internal/check_op.h:

:In file included from 41../src/s2/s2winding_operation.h:
:  In file included from 23200/usr/local/clang/include/absl/log/internal/strip.h:
 | :In file included from v26../src/s2/s2builder.ho:
i:/usr/local/clang/include/absl/log/internal/log_message.hd31 ::
L340In file included from o:/usr/local/clang/include/absl/container/flat_hash_set.hw46:L:43e :
vwarning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e/usr/local/clang/include/absl/container/hash_container_defaults.h
l:C19a:
  lIn file included from l340/usr/local/clang/include/absl/container/internal/hash_function_defaults.hO | : n cf59er:
(iIn file included from ae/usr/local/clang/include/absl/strings/cord.hbn:sd86l :
:v/usr/local/clang/include/absl/strings/cord_analysis.h:o:oi50nd:c 49eA:_b fswarning: lltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]aF
go*r ma   ba50st | lsF_inlzoeun_snthu( lSGlet tfrMloiargne,Pg rCieacfliylsaSebiMlenem&ko&*r  yfUansb,a
sg      el| (                                       ^_c
onno/usr/local/clang/include/absl/base/nullability.hsn:tn241 u:Cl22ol: r dsnote: Rexpanded from macro 'absl_nonnull'ie
pn*   k241a, | b#
sdl      e_f| nio                                             ^nne
n ua/usr/local/clang/include/absl/base/nullability.hlb:ls 241lr_:enp22o)n:;n
 u      note: l| l                                                ^expanded from macro 'absl_nonnull' 
_
N/usr/local/clang/include/absl/base/nullability.ho:  n241n241:u | 22l#:ld 
enote:       expanded from macro 'absl_nonnull'f| i
                     ^n
  e241  | a#bdself_innoen naublsll __nNoonnnnuullll 
_      N| o                     ^n
null
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
ll
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from In file included from s2/s2text_format.cc/usr/local/clang/include/absl/log/internal/check_impl.h::1621:
:
In file included from In file included from ../src/s2/s2text_format.h/usr/local/clang/include/absl/log/internal/check_op.h::3441:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/log/internal/strip.h::3026:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/container/btree_map.h::42666::
31In file included from :/usr/local/clang/include/absl/container/internal/btree.h :warning: 73type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/strings/cord.h  :42694 | :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.hL:o31g:
Me/usr/local/clang/include/absl/synchronization/mutex.hs:s1033a:g20e:F awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
l(c o1033n | s t  vcohiadr *W aaibts(lM_untoenxn*u lalb sfli_lneo,n niunltl  lmiun)e ,{

            | |                               ^                   ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/base/nullability.h241::24122::22 :note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'absl_nonnull'
  241   | 241# | d#edfeifnien ea basbls_ln_onnonnunlull l_ N_oNnonnunlull
l      
|                            ^| 
                     ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from In file included from s2/s2text_format.cc/usr/local/clang/include/absl/log/internal/check_op.h::1641:
:
In file included from In file included from ../src/s2/s2text_format.h/usr/local/clang/include/absl/log/internal/strip.h::3426:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/mutable_s2shape_index.h::42730::
31In file included from :/usr/local/clang/include/absl/container/btree_map.h :warning: 66type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:73  :
427In file included from  | /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1050 : 31 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
cons t1050  | c h abro*o la bWsali_tnWointnhuTlilm efoauitl(uMruet_emxs*g )a bAsBlS_Ln_oAnTnTuRlIlB UmTuE,_ CaObLsDl;:
:      D| u                              ^r
at/usr/local/clang/include/absl/base/nullability.hi:o241n: 22t:i mnote: eexpanded from macro 'absl_nonnull'o
ut  )241  | {#
d      e| f                              ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069In file included from  | s2/util/math/exactfloat/exactfloat.cc : 18b:
oIn file included from o../src/s2/util/math/exactfloat/exactfloat.hl: 126W:
aIn file included from i../src/s2/base/logging.ht:W21i:
tIn file included from h/usr/local/clang/include/absl/log/check.hD:e37a:
dIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
(In file included from M/usr/local/clang/include/absl/log/internal/check_op.hu:t41e:
xIn file included from */usr/local/clang/include/absl/log/internal/strip.h :a26b:
s/usr/local/clang/include/absl/log/internal/log_message.hl:_436n:o36n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 mu  ,436  | a b sLlo:g:MTeismsea gdeeDaedbluignFea)t a{l
(      c| o                               ^n
st/usr/local/clang/include/absl/base/nullability.h :c241h:a22r:*  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln ef ialbes,l
_      n| o                                   ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l241 :_22N:o nnote: nexpanded from macro 'absl_nonnull'u
ll  
241       | | #                     ^d
efine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(coIn file included from ns2/util/math/exactfloat/exactfloat.ccs:t18 :
cIn file included from h../src/s2/util/math/exactfloat/exactfloat.ha:r126*:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21 :
nIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hm:e41):
;In file included from 
/usr/local/clang/include/absl/log/internal/strip.h      :| 26                                  ^:

/usr/local/clang/include/absl/log/internal/log_message.h:/usr/local/clang/include/absl/base/nullability.h446::25743::23 :warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'absl_nullable'
    446257 |  |  # dLeofgiMnees saabgselQ_uniueltllaybDleeb u_gNFualtlaalb(lceo
n      s| t                      ^ 
char* absl_nonnull fIn file included from is2/s2text_format.ccl:e16,:

In file included from In file included from       ../src/s2/s2text_format.hs2/s2shapeutil_contains_brute_force.cc| ::                                          ^3418
:
:
In file included from In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h../src/s2/s2shapeutil_contains_brute_force.h:::2413021::
:
22In file included from In file included from :/usr/local/clang/include/absl/container/btree_map.h../src/s2/s2point.h ::note: 66expanded from macro 'absl_nonnull'27:

:
In file included from In file included from   /usr/local/clang/include/absl/container/internal/btree.h../src/s2/s2coder.h241:: | 7323#:
:
dIn file included from In file included from e/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/status/status.hf::i9467n:
:
eIn file included from In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/status/internal/status_internal.ha::b3129s:
:
l/usr/local/clang/include/absl/synchronization/mutex.h_/usr/local/clang/include/absl/strings/cord.h:n:1091o1666:n:26n48:u: l warning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning:  
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
N o1091n  | n1666 u |  ill
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFbataolo(lc oWnasitt Ccohmamro*n (aMbustle_xn*o nanbuslll_ nfoinlneu,l li nmtu tleixn,e
,      
|                                ^| 
                                     ^
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.h::241241::2222::  note: note: expanded from macro 'absl_nonnull'expanded from macro 'absl_nonnull'

  241   | 241 | ##ddeeffiinnee  aabbssll__nnoonnnnuullll  __NNoonnnnuullll

            | |                      ^                     ^

In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.hIn file included from :s2/s2text_format.cc457::1638:
:In file included from  ../src/s2/s2text_format.h:warning: 34:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from   /usr/local/clang/include/absl/container/btree_map.h457: | 66 :
 In file included from  /usr/local/clang/include/absl/container/internal/btree.h : 73 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 1093 : 46 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ons t1093  | c h avro*i da bRselm_onvoen(nbualsle _fianitleurrnea_lm:s:gP)e
r      T| h                                     ^r
ea/usr/local/clang/include/absl/base/nullability.hd:S241y:n22c:h *note:  expanded from macro 'absl_nonnull'a
bs  l241_ | n#odnenfuilnle  sa)b;s
l      _| n                                             ^o
nn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22_:N onote: nexpanded from macro 'absl_nonnull'n
ul  l241
 |       #| d                     ^e
fine absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)In file included from 
s2/util/math/exactfloat/exactfloat.cc      :| 18                                 ^:

In file included from ../src/s2/util/math/exactfloat/exactfloat.h:/usr/local/clang/include/absl/base/nullability.h126::
257In file included from :../src/s2/base/logging.h23::21 :
In file included from note: /usr/local/clang/include/absl/log/check.hexpanded from macro 'absl_nullable':
37:
In file included from   /usr/local/clang/include/absl/log/internal/check_impl.h257: | 21#:
de/usr/local/clang/include/absl/log/internal/check_op.hf:i180n:e42 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nul  l180a | bAlBeS L__NAuTlTlRaIbBlUeT
E      _| P                      ^U
RE_FUNCTION const char* absl_nonnull MakeIn file included from Cs2/s2text_format.cch:e16c:
kIn file included from F../src/s2/s2text_format.ha:i34l:
SIn file included from t../src/s2/mutable_s2shape_index.hr:i30n:
gIn file included from (/usr/local/clang/include/absl/container/btree_map.h
:      66| :
                                         ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/strings/cord.h241::9422:
:In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h:note: 31expanded from macro 'absl_nonnull':

/usr/local/clang/include/absl/synchronization/mutex.h:1132  :24110 | :# dwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
in e1132  | a b sMlu_tneoxn*n ualbls l__Nnounlnlualbll
e       | c                     ^o
nst mu_;
      |          ^In file included from 
s2/util/math/exactfloat/exactfloat.cc:18/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257../src/s2/util/math/exactfloat/exactfloat.h::23126::
 In file included from ../src/s2/base/logging.hnote: :expanded from macro 'absl_nullable'21
:
In file included from /usr/local/clang/include/absl/log/check.h  :25737 | :
#In file included from d/usr/local/clang/include/absl/log/internal/check_impl.he:f21i:
n/usr/local/clang/include/absl/log/internal/check_op.he: 181a:b25s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
llab  l181e |   _ N u lcloanbslte 
a      b| s                      ^l
::Status* absl_nonnull status, const char*nline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSLIn file included from _s2/s2shapeutil_contains_brute_force.ccE:X18C:
LIn file included from U../src/s2/s2shapeutil_contains_brute_force.hS:I21V:
EIn file included from _../src/s2/s2point.hL:O27C:
KIn file included from _../src/s2/s2coder.hF:U23N:
CIn file included from T/usr/local/clang/include/absl/status/status.hI:O67N:
(In file included from m/usr/local/clang/include/absl/status/internal/status_internal.hu:)29
:
      | /usr/local/clang/include/absl/strings/cord.h      ^~~~:
1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(/usr/local/clang/include/absl/synchronization/mutex.hC:h1153a:r39I:t ewarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tor *1153  | a b selx_pnloincniutl lR eilte,a ssaibzlee_Mtu tne_xbLyotceks()M u{t
e      x| *                                        ^ 
abs/usr/local/clang/include/absl/base/nullability.hl:_241n:o22n:n unote: lexpanded from macro 'absl_nonnull'l
 m  u241) | 
#      d| e                                      ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
o absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absnln_unloln n_uNloln n_uNloln
n      u| l                     ^l

      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34In file included from :
s2/util/math/exactfloat/exactfloat.ccIn file included from :../src/s2/mutable_s2shape_index.h18::
30In file included from :
../src/s2/util/math/exactfloat/exactfloat.hIn file included from :/usr/local/clang/include/absl/container/btree_map.h126::
66In file included from :
../src/s2/base/logging.hIn file included from :/usr/local/clang/include/absl/container/internal/btree.h21::
73In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/strings/cord.h37::
94In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h21::
31:
/usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/synchronization/mutex.h::1931158::2153::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  193  | 1158c | o n s t   a bMsult:e:xS&t amtuu sA*B SaLb_sIlN_TnEoRnNnAuLl_lA TATsRSItBaUtTuEs_(CcAoPnTsUtR EaDb_sBlY:(:tShtiast)u,s
O      r| <                                                    ^~~~T
>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_no/usr/local/clang/include/absl/synchronization/mutex.hn:n1166u:l39l:  _warning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nnul l1166
 |        |                       ^e
xplicit ReleasableMutexLock(Mutex* absl_nonnull mu, cIn file included from os2/util/math/exactfloat/exactfloat.ccn:s18t:
 In file included from C../src/s2/util/math/exactfloat/exactfloat.ho:n126d:
iIn file included from t../src/s2/base/logging.hi:o21n:
&In file included from  /usr/local/clang/include/absl/log/check.hc:o37n:
dIn file included from )/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                      ^
/usr/local/clang/include/absl/log/internal/check_op.h:202:/usr/local/clang/include/absl/base/nullability.h46::241 :22warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
note: expanded from macro 'absl_nonnull'
    202241 |  |  # deexfpilniec iatb sClh_encoknOnpuMlels s_aNgoenBnuuillld
e      r| (                     ^c
onst char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  In file included from 241s2/s2text_format.cc | :#16d:
eIn file included from f../src/s2/s2text_format.hi:n34e:
 In file included from a../src/s2/mutable_s2shape_index.hb:s30l:
_In file included from n/usr/local/clang/include/absl/container/btree_map.ho:n66n:
uIn file included from l/usr/local/clang/include/absl/container/internal/btree.hl: 73_:
NIn file included from o/usr/local/clang/include/absl/strings/cord.hn:n94u:
lIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.h
:      31| :
                     ^/usr/local/clang/include/absl/synchronization/mutex.h
:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
In file included from   s2/util/math/exactfloat/exactfloat.cc257: | 18#:
dIn file included from e../src/s2/util/math/exactfloat/exactfloat.hf:i126n:
eIn file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:
 /usr/local/clang/include/absl/log/internal/check_op.h_:N209u:l15l:a bwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e

      |                       ^  
209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unkIn file included from nos2/util/math/exactfloat/exactfloat.ccw:n18 :
_In file included from N../src/s2/util/math/exactfloat/exactfloat.hu:l126l:
_In file included from u../src/s2/base/logging.hn:s21p:
eIn file included from c/usr/local/clang/include/absl/log/check.hi:f37i:
eIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                                 ^
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | constIn file included from  s2/s2text_format.ccv:o16i:
dIn file included from *../src/s2/s2text_format.h :a34b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.ha:b66l:
eIn file included from  /usr/local/clang/include/absl/container/internal/btree.ho:p73e:
rIn file included from a/usr/local/clang/include/absl/strings/cord.ht:o94r:
<In file included from </usr/local/clang/include/absl/strings/internal/cordz_info.h(:s31t:
d/usr/local/clang/include/absl/synchronization/mutex.h:::1231o:s8t:r ewarning: atype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]m
&, 
1231       | |              ^ 
  T/usr/local/clang/include/absl/base/nullability.h*: 257a:b23s:l _note: nexpanded from macro 'absl_nullable'u
ll  a257b | i#ldietfyi_nuen kanboswln_ naurlgl)a
b      l| e       ^ 
_N/usr/local/clang/include/absl/base/nullability.hu:l289l:a34b:l enote: 
expanded from macro 'absl_nullability_unknown'      
|                       ^
  289 | #define absl_nIn file included from us2/util/math/exactfloat/exactfloat.ccl:l18a:
bIn file included from i../src/s2/util/math/exactfloat/exactfloat.hl:i126t:
yIn file included from _../src/s2/base/logging.hu:n21k:
nIn file included from o/usr/local/clang/include/absl/log/check.hw:n37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
_/usr/local/clang/include/absl/log/internal/check_op.hu:n277s:p50e:c iwarning: ftype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
ed
        | 277                                 ^ | 
                                     const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: In file included from note: s2/s2text_format.ccexpanded from macro 'absl_nullable':
16:
In file included from   ../src/s2/s2text_format.h257: | 34#:
dIn file included from e../src/s2/mutable_s2shape_index.hf:i30n:
eIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:u73l:
lIn file included from a/usr/local/clang/include/absl/strings/cord.hb:l94e:
 In file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hN:u31l:
l/usr/local/clang/include/absl/synchronization/mutex.ha:b1241l:e12
:       | warning:                       ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

 1241 |     bool (*absl_nonnull In file included from fs2/util/math/exactfloat/exactfloat.ccu:n18c:
)In file included from (../src/s2/util/math/exactfloat/exactfloat.hT:*126 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from u/usr/local/clang/include/absl/log/check.hl:l37a:
bIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hl:i21t:
y/usr/local/clang/include/absl/log/internal/check_op.h_:u278n:k13n:o wwarning: ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
,
      |              ^278
 | c/usr/local/clang/include/absl/base/nullability.ho:n241s:t22 :v onote: iexpanded from macro 'absl_nonnull'd
*   a241b | s#ld_enfuilnlea balbes lo_pneornantuolrl< <_(Nsotndn:u:lols
t      r| e                     ^a
m&, std::In file included from ns2/s2text_format.ccu:l16l:
pIn file included from t../src/s2/s2text_format.hr:_34t:
)In file included from ;../src/s2/mutable_s2shape_index.h
:      30| :
            ^In file included from 
/usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/base/nullability.h::66257:
:In file included from 23/usr/local/clang/include/absl/container/internal/btree.h:: 73:
note: In file included from expanded from macro 'absl_nullable'/usr/local/clang/include/absl/strings/cord.h
:94:
  In file included from 257/usr/local/clang/include/absl/strings/internal/cordz_info.h | :#31d:
e/usr/local/clang/include/absl/synchronization/mutex.hf:i1241n:e34 :a bwarning: stype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]l
_nu l1241l | a b l e  b_oNoull l(a*balbes
l      _| n                      ^o
nnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13:In file included from  s2/s2text_format.cc:warning: 16type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/s2text_format.h:34:
  In file included from 292../src/s2/mutable_s2shape_index.h | :c30o:
nIn file included from s/usr/local/clang/include/absl/container/btree_map.ht: 66c:
hIn file included from a/usr/local/clang/include/absl/container/internal/btree.hr:*73 :
aIn file included from b/usr/local/clang/include/absl/strings/cord.hs:l94_:
nIn file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hn:n31u:
l/usr/local/clang/include/absl/synchronization/mutex.hl: 1242o:p44e:r awarning: ttype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]o
r<< (1242s | t d : : btayspiecn_aomset raebasml<:c:htayrp,e _Tirdaeinttsi>t&y,<
T      >| :            ^:
ty/usr/local/clang/include/absl/base/nullability.hp:e241*: 22a:b snote: lexpanded from macro 'absl_nonnull'_
nu  l241l | a#bdielfiitnye_ uanbksnlo_wnno
n      n| u                                           ^l
l /usr/local/clang/include/absl/base/nullability.h_:N289o:n34n:u lnote: lexpanded from macro 'absl_nullability_unknown'

      |                      ^  
289 | #define absl_nIn file included from us2/util/math/exactfloat/exactfloat.ccl:l18a:
bIn file included from i../src/s2/util/math/exactfloat/exactfloat.hl:i126t:
yIn file included from _../src/s2/base/logging.hu:n21k:
nIn file included from o/usr/local/clang/include/absl/log/check.hw:n37 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_impl.hu:l21l:
_/usr/local/clang/include/absl/log/internal/check_op.hu:n293s:p49e:c iwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ed
        | 293                                 ^ | 
                                    constIn file included from  s2/s2text_format.ccc:h16a:
rIn file included from *../src/s2/s2text_format.h :a34b:
sIn file included from l../src/s2/mutable_s2shape_index.h_:n30o:
nIn file included from n/usr/local/clang/include/absl/container/btree_map.hu:l66l:
)In file included from ;/usr/local/clang/include/absl/container/internal/btree.h
:      73| :
                                                ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:94/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241/usr/local/clang/include/absl/strings/internal/cordz_info.h::2231::
 /usr/local/clang/include/absl/synchronization/mutex.hnote: :expanded from macro 'absl_nonnull'1249
:8:   241 | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
ef i1249n | e   a b sTl*_ naobnsnlu_lnlo n_nNuolnln uolblj
e      c| t                     ^,

      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/util/math/exactfloat/exactfloat.ccb:s18l:
_In file included from n../src/s2/util/math/exactfloat/exactfloat.ho:n126n:
uIn file included from l../src/s2/base/logging.hl: 21_:
NIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                     ^
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const In file included from ss2/s2text_format.cci:g16n:
eIn file included from d../src/s2/s2text_format.h :c34h:
aIn file included from r../src/s2/mutable_s2shape_index.h*: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_66n:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hn:u73l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.ho:p94e:
rIn file included from a/usr/local/clang/include/absl/strings/internal/cordz_info.ht:o31r:
</usr/local/clang/include/absl/synchronization/mutex.h<:(1250s:t43d:: :warning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
sic _1250o | s t r e abmo<oclh a(ra,b sTlr:a:ittysp>e&_,i
d      e| n                   ^t
it/usr/local/clang/include/absl/base/nullability.hy:<241T:>22::: tnote: yexpanded from macro 'absl_nonnull'p
e:  :241* |  #adbesfli_nneo nanbuslll_ nmoentnhuoldl) (_)N)o
n      n| u                                          ^l
l
/usr/local/clang/include/absl/base/nullability.h      :| 241                     ^:
22: note: expanded from macro 'absl_nonnull'
  241 | #define aIn file included from bs2/util/math/exactfloat/exactfloat.ccs:l18_:
nIn file included from o../src/s2/util/math/exactfloat/exactfloat.hn:n126u:
lIn file included from l../src/s2/base/logging.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                     ^:

/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<TIn file included from >s2/util/math/exactfloat/exactfloat.cc:::18t:
yIn file included from p../src/s2/util/math/exactfloat/exactfloat.he::126::
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:o37n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21 :
m/usr/local/clang/include/absl/log/internal/check_op.he:t323h:o46d:) (warning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                           ^
  323/usr/local/clang/include/absl/base/nullability.h | :241 : 22f:r inote: eexpanded from macro 'absl_nonnull'n
d   v241o | i#dd eAfbisnleF oarbmsalt_Fnlounsnhu(lSlt r_iNnogninfuylSli
n      k| *                     ^ 
absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnulIn file included from ls2/s2text_format.cc
:      16| :
                     ^In file included from 
../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: In file included from type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s2/util/math/exactfloat/exactfloat.cc
:18:
In file included from  ../src/s2/util/math/exactfloat/exactfloat.h1309: | 126v:
oIn file included from i../src/s2/base/logging.hd: 21R:
eIn file included from g/usr/local/clang/include/absl/log/check.hi:s37t:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hC:o21n:
d/usr/local/clang/include/absl/log/internal/check_op.hV:a428r:T44r:a cwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
(voi  d428  | (A*BaSbLs_lA_TnToRnInBuUlTlE _fRnE)T(U
R      N| S                                  ^_
NO/usr/local/clang/include/absl/base/nullability.hN:N241U:L22L:  cnote: oexpanded from macro 'absl_nonnull'n
st   241c | h#adr* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const cheafIn file included from is2/s2shapeutil_contains_brute_force.ccn:e18 :
aIn file included from b../src/s2/s2shapeutil_contains_brute_force.hs:l21_:
nIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h :_23N:
oIn file included from n/usr/local/clang/include/absl/status/status.hn:u67l:
l/usr/local/clang/include/absl/status/internal/status_internal.h
:      119| :                     ^14
: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 | In file included from  s2/s2text_format.cc :S16t:
aIn file included from t../src/s2/s2text_format.hu:s34R:
eIn file included from p../src/s2/mutable_s2shape_index.h*: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_66n:
oIn file included from n/usr/local/clang/include/absl/container/internal/btree.hn:u73l:
lIn file included from  /usr/local/clang/include/absl/strings/cord.hC:l94o:
nIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h(:
31      :
| /usr/local/clang/include/absl/synchronization/mutex.h             ^:
1310:17: /usr/local/clang/include/absl/base/nullability.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241
:22:  note: 1310expanded from macro 'absl_nonnull' | 
     241  | c#odnesfti nceh aarb*s la_bnsoln_nnuolnln u_lNlo nmnsugl,l 
c      o| n                     ^s
t void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defiIn file included from ns2/s2shapeutil_contains_brute_force.cce: 18a:
bIn file included from s../src/s2/s2shapeutil_contains_brute_force.hl:_21n:
oIn file included from n../src/s2/s2point.hn:u27l:
lIn file included from  ../src/s2/s2coder.h_:N23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:

      /usr/local/clang/include/absl/status/internal/status_internal.h| :                     ^125
:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  In file included from 125s2/s2text_format.cc | :16 :
 In file included from S../src/s2/s2text_format.ht:a34t:
uIn file included from s../src/s2/mutable_s2shape_index.hR:e30p:
*In file included from  /usr/local/clang/include/absl/container/btree_map.ha:b66s:
lIn file included from _/usr/local/clang/include/absl/container/internal/btree.hn:o73n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
CIn file included from l/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31e:
A/usr/local/clang/include/absl/synchronization/mutex.hn:d1310U:n47r:e fwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |              ^
 1310 | /usr/local/clang/include/absl/base/nullability.h : 241 : 22c:o nnote: sexpanded from macro 'absl_nonnull't
 c  h241a | r#*d eafbisnle_ naobnsnlu_lnlo nmnsugll ,_ Ncoonnnsutl lv
o      i| d                     ^*
 absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from   s2/s2shapeutil_contains_brute_force.cc241: | 18#:
dIn file included from e../src/s2/s2shapeutil_contains_brute_force.hf:i21n:
eIn file included from  ../src/s2/s2point.ha:b27s:
lIn file included from _../src/s2/s2coder.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/status/status.hl:l67 :
_/usr/local/clang/include/absl/status/internal/status_internal.hN:o128n:n14u:l lwarning: 
      type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]| 
                     ^
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
r* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from s2/s2shapeutil_coding.cc:28:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from nnoulln
n      u| l                     ^l
 _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.hIn file included from :s2/s2shapeutil_coding.cc21::
28In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :../src/s2/s2lax_polygon_shape.h37::
36In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :../src/s2/s2polygon.h21::
34:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/mutable_s2shape_index.h458::331:
:In file included from  ../src/s2/base/commandlineflags.h:warning: 21:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/flags/flag.h:118:29:   458 | warning: Atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
SL_L  O118G | _vIoNiTdE RSNeAtLF_lDaEgF(IaNbEs_lM:A:KFEl_aCgH<ETC>K*_ OaPb_sSlT_RnIoNnGn_uElXlT EfRlNa(gc,o ncsotn sstt dV:&: svt)r i{n
g      &| )                            ^;

      | /usr/local/clang/include/absl/base/nullability.h^:
241:22:/usr/local/clang/include/absl/log/internal/check_op.h :449note: :expanded from macro 'absl_nonnull'31
:   note: 241expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN' | 
#de  f449i | n e  eaxbtselr_nn otnenmupllla t_eN ocnonnusltl 
c      h| a                     ^r
* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const chars2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailIn file included from Ss2/s2text_format.cct:r16i:
nIn file included from g../src/s2/s2text_format.h(
:      34| :
            ^In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24166::
22In file included from :/usr/local/clang/include/absl/container/internal/btree.h :73note: :
expanded from macro 'absl_nonnull'
/usr/local/clang/include/absl/strings/cord.h:109:  53241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine   109a | bvsoli_dn oCnonpuylClo r_dNToonSnturliln
g      (| c                     ^o
nst Cord& srcIn file included from ,s2/s2shapeutil_contains_brute_force.cc :s18t:
dIn file included from :../src/s2/s2shapeutil_contains_brute_force.h::s21t:
rIn file included from i../src/s2/s2point.hn:g27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.ho:n67n:
u/usr/local/clang/include/absl/status/internal/status_internal.hl:l150 :d25s:t )warning: ;type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                     ^
  150 |  /usr/local/clang/include/absl/base/nullability.h : 241 :c22o:n snote: texpanded from macro 'absl_nonnull' 
ab  s241l | :#:dSetfaitnues *a basbls_ln_onnonnunlull l_ Nsotnantuulsl,
       c| o                     ^n
st char* absl_nonnull prefIn file included from is2/s2text_format.ccx:)16;:

In file included from       ../src/s2/s2text_format.h| :                        ^34
:
In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/base/nullability.h::30241:
:In file included from 22/usr/local/clang/include/absl/container/btree_map.h:: 66:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/btree.h
:73:
  241/usr/local/clang/include/absl/strings/cord.h | :#110d:e55f:i nwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs  l110_ | nvoonindu lAlp p_eNnodnCnourldlT
o      S| t                     ^r
ing(const In file included from Cs2/s2shapeutil_contains_brute_force.cco:r18d:
&In file included from  ../src/s2/s2shapeutil_contains_brute_force.hs:r21c:
,In file included from  ../src/s2/s2point.hs:t27d:
:In file included from :../src/s2/s2coder.hs:t23r:
iIn file included from n/usr/local/clang/include/absl/status/status.hg:*67 :
a/usr/local/clang/include/absl/status/internal/status_internal.hb:s150l:_58n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll d  s150t | ) ; 
        | c                                                      ^o
ns/usr/local/clang/include/absl/base/nullability.ht: 241a:b22s:l :note: :expanded from macro 'absl_nonnull'S
ta  t241u | s#*d eafbisnle_ naobnsnlu_lnlo nsntualtlu s_,N ocnonnusltl 
c      h| a                     ^r
* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2text_format.cc                     ^:
16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicitIn file included from  s2/util/math/exactfloat/exactfloat.ccC:h18u:
nIn file included from k../src/s2/util/math/exactfloat/exactfloat.hI:t126e:
rIn file included from a../src/s2/base/logging.ht:o21r:
(In file included from c/usr/local/clang/include/absl/log/check.ho:r37d:
_In file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:t21e:
r/usr/local/clang/include/absl/log/internal/check_op.hn:a461l::1::C owarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
Rep*   461a | bAsBlS_Ln_oLnOnGu_lIlN TtErReNeA)L;_
D      E| F                                                   ^I
NE/usr/local/clang/include/absl/base/nullability.h_:M241AKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull Make:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(corIn file included from ds2/s2shapeutil_contains_brute_force.cc_:i18n:
tIn file included from e../src/s2/s2shapeutil_contains_brute_force.hr:n21a:
lIn file included from :../src/s2/s2point.h::C27o:
rIn file included from d../src/s2/s2coder.hR:e23p:
*/usr/local/clang/include/absl/status/status.h :a725b:s38l:_ nwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
null   725t | r e es)t;a
t      i| c                                          ^ 
st/usr/local/clang/include/absl/base/nullability.ha:t241u:s22_:i nnote: texpanded from macro 'absl_nonnull'e
rn  a241l | :#:dSetfaitnues Raebps*l _anbosnln_unloln n_uNloln nPurlelp
a      r| e                     ^T
oModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |  In file included from  s2/s2shapeutil_contains_brute_force.cc : 18a:
bIn file included from s../src/s2/s2shapeutil_contains_brute_force.hl::21::
cIn file included from o../src/s2/s2point.hr:d27_:
iIn file included from n../src/s2/s2coder.ht:e23r:
n/usr/local/clang/include/absl/status/status.ha:l732:::29C:o rwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]R
ep*   a732b | s l _sntualtliacb lceo ncsutr rsetndt:_:lsetarfi_n g=*  naublsllp_tnro;n
n      u| l                                  ^l
 E/usr/local/clang/include/absl/base/nullability.hm:p257t:y23S:t rnote: iexpanded from macro 'absl_nullable'n
g(  )257; | 
#      d| e                            ^f
ine/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: uexpanded from macro 'absl_nonnull'l
la  b241l | e# d_eNfuilnlea balbes
l      _| n                      ^o
nnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2text_format.ccl:l16
:
      In file included from | ../src/s2/s2text_format.h                     ^:
34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* abslIn file included from _s2/s2shapeutil_contains_brute_force.ccn:o18n:
nIn file included from u../src/s2/s2shapeutil_contains_brute_force.hl:l21 :
cIn file included from o../src/s2/s2point.hr:d27):
 In file included from :../src/s2/s2coder.h :c23o:
r/usr/local/clang/include/absl/status/status.hd:_751(:c61o:r dwarning: )type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
{}
      |                                       ^751
 |   /usr/local/clang/include/absl/base/nullability.hs:241t:a22t:i cnote:  expanded from macro 'absl_nonnull'u
in  t241p | t#rd_etf iPnoei natbesrlT_onRoenpn(usltla t_uNso_ninnutlelr
n      a| l                     ^:
:StatusRep* absl_nonnull r);
      |                                                             ^In file included from 
s2/s2text_format.cc:16/usr/local/clang/include/absl/base/nullability.h:
:In file included from 241../src/s2/s2text_format.h::2234::
 In file included from ../src/s2/mutable_s2shape_index.hnote: :expanded from macro 'absl_nonnull'30
:
In file included from /usr/local/clang/include/absl/container/btree_map.h  :24166 | :
#In file included from d/usr/local/clang/include/absl/container/internal/btree.he:f73i:
n/usr/local/clang/include/absl/strings/cord.he: 588a:b17s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
nn  u588l | l   _ N ocnonnusltl 
C      o| r                     ^d
* absl_nonnull corIn file included from ds2/s2shapeutil_contains_brute_force.cc_:;18
:
      In file included from | ../src/s2/s2shapeutil_contains_brute_force.h                ^:
21:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2point.h::24127::
22In file included from :../src/s2/s2coder.h :23note: :
expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/status/status.h
:752:  44241: |  #warning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
fine   752a | b s ls_tnaotnincu lclo n_sNto nsntualtlu
s      _| i                     ^n
ternal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
In file included from /usr/local/clang/include/absl/base/nullability.hs2/s2text_format.cc::24116::
22In file included from :../src/s2/s2text_format.h :34note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/mutable_s2shape_index.h:30  :
241In file included from  | /usr/local/clang/include/absl/container/btree_map.h#:d66e:
fIn file included from i/usr/local/clang/include/absl/container/internal/btree.hn:e73 :
a/usr/local/clang/include/absl/strings/cord.hb:s641l:_33n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   _641N | o n n u luls
i      n| g                     ^ 
pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
CheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2text_format.cc  :24116 | :
#In file included from d../src/s2/s2text_format.he:f34i:
nIn file included from e../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n66o:
nIn file included from n/usr/local/clang/include/absl/container/internal/btree.hu:l73l:
 /usr/local/clang/include/absl/strings/cord.h_:N655o:n39n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                      ^
  655 |     exIn file included from ps2/util/math/exactfloat/exactfloat.ccl:i18c:
iIn file included from t../src/s2/util/math/exactfloat/exactfloat.h :C126h:
aIn file included from r../src/s2/base/logging.hI:t21e:
rIn file included from a/usr/local/clang/include/absl/log/check.ht:o37r:
(In file included from c/usr/local/clang/include/absl/log/internal/check_impl.ho:n21s:
t/usr/local/clang/include/absl/log/internal/check_op.h :C465o:r66d:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_n  o465n | nAuBlSlL _cLoOrGd_)I
N      T| E                                      ^R
NA/usr/local/clang/include/absl/base/nullability.hL:_241D:E22F:I Nnote: Eexpanded from macro 'absl_nonnull'_
MA  K241E | _#CdHeEfCiKn_eO Pa_bSsTlR_InNoGn_nEuXlTlE R_NN(ocnonnusltl 
v      o| i                     ^d
* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nIn file included from os2/s2text_format.ccn:n16u:
lIn file included from l../src/s2/s2text_format.h :_34N:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from 
/usr/local/clang/include/absl/container/btree_map.h      :| 66                     ^:

In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:667:44:In file included from  s2/util/math/exactfloat/exactfloat.cc:warning: 18type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
  In file included from 667../src/s2/base/logging.h | : 21 :
sIn file included from t/usr/local/clang/include/absl/log/check.ha:t37i:
cIn file included from  /usr/local/clang/include/absl/log/internal/check_impl.hC:o21r:
d/usr/local/clang/include/absl/log/internal/check_op.h :A465d:v66a:n cwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
nd/usr/local/clang/include/absl/base/nullability.hR:e241a:d22(:C hnote: aexpanded from macro 'absl_nonnull'r
It  e241r | a#tdoerf*i naeb salb_snlo_nnnounlnlu lilt ,_ Nsoinzneu_ltl 
n      _| b                     ^y
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
tes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScoIn file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
pe& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:988:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  988 |     void PrependTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:989:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  989 |     void PrependTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst) const {
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char* absl_nonnull dst) const;
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1012:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1012 |     absl::cord_internal::CordzInfo* absl_nullable cordz_info() const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1017:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1017 |     void set_cordz_info(cord_internal::CordzInfo* absl_nonnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1054:37:   warning: 488type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | 
   i1054n | l i n e   c oanbsstle:x:pcro rcdo_nisntt ecrhnaarl*: :aCbosrld_Rneupl*lable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
 absl_nonnull rep,
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18In file included from :
s2/s2text_format.ccIn file included from :../src/s2/s2shapeutil_contains_brute_force.h16::
21In file included from :
../src/s2/s2text_format.hIn file included from :../src/s2/s2point.h34::
27In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/s2coder.h30::
23In file included from :
/usr/local/clang/include/absl/container/btree_map.h:/usr/local/clang/include/absl/status/status.h66::
1031In file included from :/usr/local/clang/include/absl/container/internal/btree.h42::73 :
warning: /usr/local/clang/include/absl/strings/cord.h:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1079
:33: warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]1031
 | in l1079i | n e  acbosnls:t: csotradt_uisn_tienrtnearln:a:lC:o:rSdtRaetpu*s Raebps*l _anbosnln_unloln nTualkle RSetpa(t)u s&:&:;R
e      p| T                                ^o
Po/usr/local/clang/include/absl/base/nullability.hi:n241t:e22r:( 
note:       expanded from macro 'absl_nonnull'| 
                                         ^
  241 | #/usr/local/clang/include/absl/base/nullability.hd:e241f:i22n:e  note: aexpanded from macro 'absl_nonnull'b
sl  _241n | o#ndneufliln e_ Naobnsnlu_lnlo
n      n| u                     ^l
l _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:18:
In file included from ../src/s2/s2shapeutil_contains_brute_force.h:21:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     statuIn file included from ss2/s2text_format.cc_:i16n:
tIn file included from e../src/s2/s2text_format.hr:n34a:
lIn file included from :../src/s2/mutable_s2shape_index.h::S30t:
aIn file included from t/usr/local/clang/include/absl/container/btree_map.hu:s66R:
eIn file included from p/usr/local/clang/include/absl/container/internal/btree.h*: 73a:
b/usr/local/clang/include/absl/strings/cord.hs:l1116_:n37o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l re p1116) |   { 
c      o| n                                ^s
t c/usr/local/clang/include/absl/base/nullability.hr:c241_:i22n:t enote: rexpanded from macro 'absl_nonnull'n
al  :241: | C#rdceCfoirndeS taabtsel*_ naobnsnlu_lnlu l_lNaobnlneu lMla
y      b| e                     ^G
etCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulIn file included from ls2/s2shapeutil_contains_brute_force.cc :_18N:
oIn file included from n../src/s2/s2shapeutil_contains_brute_force.hn:u21l:
lIn file included from 
../src/s2/s2point.h      :| 27                     ^:

In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
163 warnings generated.
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1140:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1140 |                                CordRepExternal* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::string_view data,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abIn file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
sl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84In file included from :
s2/s2text_format.ccIn file included from :/usr/local/clang/include/absl/strings/internal/str_format/bind.h16::
29In file included from :
../src/s2/s2text_format.h:/usr/local/clang/include/absl/strings/internal/str_format/parser.h34::
227In file included from :../src/s2/mutable_s2shape_index.h11::30 :
In file included from warning: /usr/local/clang/include/absl/container/btree_map.h'enable_if' is a clang extension [-Wgcc-compat]:
66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73  :
227 | /usr/local/clang/include/absl/strings/cord.h : 1183 : 47 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
 ena b1183l | e _ i f ( s t r _ f o r m a t _ i n t e r n a l : : E n s u r e C o n s t eCxoprrd(Rfeopr*m aatb)s,l
_      n| u          ^l
lable r/usr/local/clang/include/absl/strings/internal/str_format/parser.he:p229):
11      :|                                                ^warning: 
'enable_if' is a clang extension [-Wgcc-compat]
/usr/local/clang/include/absl/base/nullability.h:257  :22923 | :   note:  expanded from macro 'absl_nullable' 
     257  |  # deenfaibnlee _aibfs(ls_tnru_lfloarbmlaet __iNnutlelranballe:
:      V| a                      ^l
idFormatImpl<C...>(format),
      |           ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nuIn file included from ls2/s2wedge_relations.ccl:a18b:
lIn file included from e../src/s2/s2wedge_relations.h :_24N:
uIn file included from l../src/s2/s2point.hl:a27b:
lIn file included from e../src/s2/s2coder.h
:      23| :
                      ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
In file included from /usr/local/clang/include/absl/strings/str_format.h:84:
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:143:11: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  143 |           enable_ifIn file included from (s2/s2text_format.ccs:t16r:
_In file included from f../src/s2/s2text_format.ho:r34m:
aIn file included from t../src/s2/mutable_s2shape_index.h_:i30n:
tIn file included from e/usr/local/clang/include/absl/container/btree_map.hr:n66a:
lIn file included from :/usr/local/clang/include/absl/container/internal/btree.h::E73n:
s/usr/local/clang/include/absl/strings/cord.hu:r1234e:C20o:n swarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
xpr( s1234) | ,i n"lcionnes tceoxnpsrt  tcrhaapr"*) ,a
b      s| l          ^_
nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22:/usr/local/clang/include/absl/strings/internal/str_format/bind.h :149note: :expanded from macro 'absl_nonnull'22
:   warning: 241'enable_if' is a clang extension [-Wgcc-compat] | 
#def  i149n | e   a b s l __n_oantnturlilb u_tNeo_n_n(u(leln
a      b| l                     ^e
_if(str_format_internal::EnsureConstexpr(s),
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:158:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  158 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
/usr/local/clang/include/absl/strings/internal/str_format/bind.h:162:22: warning: 'enable_if' is a clang extension [-Wgcc-compat]
  162 |       __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2text_format.ccs2/util/math/exactfloat/exactfloat.cc::1618:
:
In file included from In file included from ../src/s2/s2text_format.h../src/s2/util/math/exactfloat/exactfloat.h::34126:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/base/logging.h::3021:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/log/check.h::6637:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.h/usr/local/clang/include/absl/log/internal/check_impl.h::7321:
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/log/internal/check_op.h::1282507::471::  warning: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h: 4971282: | 32i:n lnote: iexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'n
e voi  d497  | C o ridn:l:iInnel icnoenRsetpe:x:pSre tcTorneset( CcohradrR*e pa*b salb_snlu_lnloanbnluel ln armeep#,#
I      m| p                                              ^l
( /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i\n
e       | a                               ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'_
No  n257n | u#ldle
f      i| n                     ^e
 absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498In file included from  | s2/s2text_format.cc : 16 :
 In file included from  ../src/s2/s2text_format.h :i34n:
tIn file included from  ../src/s2/mutable_s2shape_index.hv:130,:
 In file included from i/usr/local/clang/include/absl/container/btree_map.hn:t66 :
vIn file included from 2/usr/local/clang/include/absl/container/internal/btree.h,: 73c:
o/usr/local/clang/include/absl/strings/cord.hn:s1290t: 54c:h awarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 ab s1290l | _innolninnuel lv oeixdp rCtoerxdt:): I{n l i n e R e p : : S e t T r e e O\r
E      m| p                                  ^t
y(/usr/local/clang/include/absl/base/nullability.hC:o241r:d22R:e pnote: *expanded from macro 'absl_nonnull' 
ab  s241l | _#nduelflianbel ea brselp_,n
o      n| n                                                     ^u
ll/usr/local/clang/include/absl/base/nullability.h :_257N:o23n:n unote: lexpanded from macro 'absl_nullable'l

        | 257                     ^ | 
#define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:115:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  115 |       const str_format_internal::ParsedFormatBase* absl_nonnull pc)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1301:56: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1301 | inline void Cord::InlineRep::CommitTree(const CordRIn file included from es2/s2wedge_relations.ccp:*18 :
aIn file included from b../src/s2/s2wedge_relations.hs:l24_:
nIn file included from u../src/s2/s2point.hl:l27a:
bIn file included from l../src/s2/s2coder.he: 23o:
lIn file included from d/usr/local/clang/include/absl/status/status.h_:r67e:
pIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h
:      29| :
                                                       ^In file included from 
/usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/crc/internal/crc_cord_state.h::25723::
23In file included from :/usr/local/clang/include/absl/crc/crc32c.h :32note: :
expanded from macro 'absl_nullable'
/usr/local/clang/include/absl/strings/str_format.h:155  :25736 | :# dwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ine   a155b | s l _enxupllliacbilte  F_oNrumlaltaCboluen
t      C| a                      ^p
ture(int* absl_nonnuIn file included from ls2/s2text_format.ccl: 16p:
)In file included from  ../src/s2/s2text_format.h:: 34p:
_In file included from (../src/s2/mutable_s2shape_index.hp:)30 :
{In file included from }/usr/local/clang/include/absl/container/btree_map.h
:      66| :
                                   ^In file included from 
/usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/strings/cord.h241::130222::50 : note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |  #1302d | e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
         CordRep* absl_nonnull rep,In file included from 
s2/s2wedge_relations.cc      :| 18                                                 ^:

In file included from ../src/s2/s2wedge_relations.h:/usr/local/clang/include/absl/base/nullability.h24::
241In file included from :../src/s2/s2point.h22::27 :
In file included from note: ../src/s2/s2coder.hexpanded from macro 'absl_nonnull':
23:
In file included from   /usr/local/clang/include/absl/status/status.h241: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
eIn file included from  /usr/local/clang/include/absl/strings/cord.ha:b82s:
lIn file included from _/usr/local/clang/include/absl/crc/internal/crc_cord_state.hn:o23n:
nIn file included from u/usr/local/clang/include/absl/crc/crc32c.hl:l32 :
_/usr/local/clang/include/absl/strings/str_format.hN:o164n:n8u:l lwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                      ^
  164 |   int* absl_nonnull Unused() { return p_; }
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NonnIn file included from us2/s2text_format.ccl:l16
:
      In file included from |                      ^
../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1312:In file included from 38s2/s2wedge_relations.cc:: 18:
warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2wedge_relations.h
:24:
In file included from ../src/s2/s2point.h: 271312:
 | In file included from i../src/s2/s2coder.hn:l23i:
nIn file included from e/usr/local/clang/include/absl/status/status.h :a67b:
sIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h:::29c:
oIn file included from r/usr/local/clang/include/absl/strings/cord.hd:_82i:
nIn file included from t/usr/local/clang/include/absl/crc/internal/crc_cord_state.he:r23n:
aIn file included from l/usr/local/clang/include/absl/crc/crc32c.h:::32C:
o/usr/local/clang/include/absl/strings/str_format.hr:d165R:e8p:*  warning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl  _165n | u l lianbtl*e  aCbosrld_:n:oInnnluilnle Rpe_p;:
:      c| l       ^e
ar/usr/local/clang/include/absl/base/nullability.h(:)241 :{22
:       | note:                                      ^expanded from macro 'absl_nonnull'

/usr/local/clang/include/absl/base/nullability.h  :241257 | :#23d:e fnote: iexpanded from macro 'absl_nullable'n
e   a257b | s#ld_enfoinnneu lalb s_lN_onnunlullalb
l      e|                       ^_
Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1321:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1321 | inline void Cord::InlIn file included from is2/s2wedge_relations.ccn:e18R:
eIn file included from p../src/s2/s2wedge_relations.h:::24C:
oIn file included from p../src/s2/s2point.hy:T27o:
AIn file included from r../src/s2/s2coder.hr:a23y:
(In file included from c/usr/local/clang/include/absl/status/status.hh:a67r:
*In file included from  /usr/local/clang/include/absl/status/internal/status_internal.ha:b29s:
lIn file included from _/usr/local/clang/include/absl/strings/cord.hn:o82n:
nIn file included from u/usr/local/clang/include/absl/crc/internal/crc_cord_state.hl:l23 :
dIn file included from s/usr/local/clang/include/absl/crc/crc32c.ht:)32 :
c/usr/local/clang/include/absl/strings/str_format.ho:n380s:t43 :{ 
      warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                               ^

/usr/local/clang/include/absl/base/nullability.h  :380241 | :s22t:d :note: :expanded from macro 'absl_nonnull's
tr  i241n | g#&d eSftirnAep paebnsdlF_onromnantu(lslt d_:N:osntnruilnlg
*       | a                     ^b
sl_nonnull dst,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:440:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  440 | int FPrintF(std::FILE* absl_nonnull output, const FormatSpec<Args...>& format,
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:469:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  469 | int SNPrintF(char* aIn file included from bs2/util/math/exactfloat/exactfloat.ccs:l18_:
nIn file included from o../src/s2/util/math/exactfloat/exactfloat.hn:n126u:
lIn file included from l../src/s2/base/logging.h :o21u:
tIn file included from p/usr/local/clang/include/absl/log/check.hu:t37,:
 In file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:d21::
:s/usr/local/clang/include/absl/log/internal/check_op.hi:z511e:_13t:  swarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]z
e,
        | 511                   ^ | 
co/usr/local/clang/include/absl/base/nullability.hn:s241t: 22c:h anote: rexpanded from macro 'absl_nonnull'*
 a  b241s | l#_dneuflilnaeb laeb sClh_encoknsnturlclm p_tNrounenIumlpll
(      
|                            ^| 
            ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     coIn file included from ns2/s2wedge_relations.ccs:t18 :
cIn file included from h../src/s2/s2wedge_relations.ha:r24*:
 In file included from a../src/s2/s2point.hb:s27l:
_In file included from n../src/s2/s2coder.hu:l23l:
aIn file included from b/usr/local/clang/include/absl/status/status.hl:e67 :
sIn file included from 1/usr/local/clang/include/absl/status/internal/status_internal.h,: 29c:
oIn file included from n/usr/local/clang/include/absl/strings/cord.hs:t82 :
cIn file included from h/usr/local/clang/include/absl/crc/internal/crc_cord_state.ha:r23*:
 In file included from a/usr/local/clang/include/absl/crc/crc32c.hb:s32l:
_/usr/local/clang/include/absl/strings/str_format.hn:u503l:l20a:b lwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
s2,  
503       | |                  ^ 
Fo/usr/local/clang/include/absl/base/nullability.hr:m257a:t23R:a wnote: Sexpanded from macro 'absl_nullable'i
nk  (257T | *# daebfsiln_en oanbnsull_ln urlalwa)b l e/ /_ NNuOlLlIaNbTl
e      
|                          ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241In file included from  | s2/util/math/exactfloat/exactfloat.cc#:d18e:
fIn file included from i../src/s2/util/math/exactfloat/exactfloat.hn:e126 :
aIn file included from ../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.ho:n37n:
uIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.hl: 21_:
N/usr/local/clang/include/absl/log/internal/check_op.ho:n512n:u47l:l 
      warning: | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                     ^

  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nuIn file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:860:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  860 |   friend void AbslFormatFlush(FormatSink* absl_nonnull sink,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:867:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  867 |   explicit FormatSink(str_format_internal::FormatSinkImpl* absl_nonnull s)
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:82:
In file included from /usr/local/clang/include/absl/crc/internal/crc_cord_state.h:23:
In file included from /usr/local/clang/include/absl/crc/crc32c.h:32:
/usr/local/clang/include/absl/strings/str_format.h:869:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  869 |   str_format_internal::FormatSinkImpl* absl_nonnull sink_;
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
llable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:14: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:489:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  489 |       void (*absl_nullable invariant)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:490:13: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  490 |       void* absl_nullability_unknown arg);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:499:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  499 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:549:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  549 |   static void IncrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:550:64: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  550 |                                 base_internal::PerThreadSyncIn file included from hs2/s2text_format.cc*: 16a:
bIn file included from s../src/s2/s2text_format.hl:_34n:
oIn file included from n../src/s2/mutable_s2shape_index.hn:u30l:
lIn file included from  /usr/local/clang/include/absl/container/btree_map.hw:)66;:

In file included from       /usr/local/clang/include/absl/container/internal/btree.h| :                                                               ^73
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::1525241::2922::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241  | 1525# | d e f i nceo radb_siln_tneornnnaull:l: C_oNrodnRneupl*l 
a      b| s                     ^l
_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241In file included from :s2/s2winding_operation.cc22::19 :
In file included from note: ../src/s2/s2winding_operation.hexpanded from macro 'absl_nonnull':
23:
In file included from   ../src/s2/s2builder.h241: | 31#:
dIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.hf:i43n:
eIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ha:b19s:
lIn file included from _/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:o59n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94 :
_In file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.ho:n31n:
u/usr/local/clang/include/absl/synchronization/mutex.hl:l551
:      40| :                     ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool DecrementSynchSem(Mutex* absl_nonnull mu,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:In file included from 34s2/s2winding_operation.cc:
:In file included from 19../src/s2/mutable_s2shape_index.h:
:In file included from 30../src/s2/s2winding_operation.h:
:In file included from 23/usr/local/clang/include/absl/container/btree_map.h:
:In file included from 66../src/s2/s2builder.h:
:In file included from 31/usr/local/clang/include/absl/container/internal/btree.h:
:In file included from 73/usr/local/clang/include/absl/container/flat_hash_set.h:
:43/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1530/usr/local/clang/include/absl/container/hash_container_defaults.h::5519::
 In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]59
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
 In file included from 1530/usr/local/clang/include/absl/strings/internal/cordz_info.h | :i31n:
l/usr/local/clang/include/absl/synchronization/mutex.hi:n552e: 64C:o rwarning: dtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
:Ch  u552n | k I t e r a t o r : : C h u n k I t e r a t o r ( c o n s t   C obrads*e _aibnstle_rnnoanln:u:lPle rcTohrrde)a d{S
y      n| c                                                      ^h
* a/usr/local/clang/include/absl/base/nullability.hb:s241l:_22n:o nnote: nexpanded from macro 'absl_nonnull'u
ll   241w | ,#
d      e| f                                                               ^i
ne/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #_dNeofninnuel la
b      s| l                     ^_
nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:556:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  556 |   void LockSlowLoop(SynchWaitParams* absl_nonnull waitp, int flags);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:558:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  558 |   bool LockSlowWithDeadline(MuHow absl_nonnull how,
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:559:46: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  559 |                             const Condition* absl_nullable cond,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:23: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:562:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  562 |   void LockSlow(MuHow absl_nonnull how, const Condition* absl_nullable cond,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlow(SynchWaitParams* absl_nullable waitp) ABSL_ATTRIBUTE_COLD;
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:578:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  578 |   void Block(base_internal::PerThreadSynch* absl_nonnull s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:580:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  580 |   base_internal::PerThreadSynch* absl_nullable Wakeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:581:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  581 |       base_internal::PerThreadSynch* absl_nonnull w);
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:585:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  585 |   void Trans(MuHow absl_nonnull how);  // used for CondVar->Mutex transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586 |   void Fer(base_internal::PerThreadSynch* absl_nonnull
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 |   explicit Mutex(const volatile Mutex* absl_nullable /*ignored*/) {}
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:73:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline In file included from vs2/s2winding_operation.cco:i19d:
 In file included from C../src/s2/s2winding_operation.ho:r23d:
:In file included from :../src/s2/s2builder.hA:d31v:
aIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hc:e43(:
CIn file included from h/usr/local/clang/include/absl/container/hash_container_defaults.ha:r19I:
tIn file included from e/usr/local/clang/include/absl/container/internal/hash_function_defaults.hr:a59t:
oIn file included from r/usr/local/clang/include/absl/strings/cord.h*: 94a:
bIn file included from s/usr/local/clang/include/absl/strings/internal/cordz_info.hl:_31n:
o/usr/local/clang/include/absl/synchronization/mutex.hn:n670u:l74l:  iwarning: t'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes],
 size  _670t |   n _ebxyptleisc)i t{ 
R      e| a                                        ^d
erM/usr/local/clang/include/absl/base/nullability.hu:t241e:x22L:o cnote: kexpanded from macro 'absl_nonnull'(
Mu  t241e | x#&d emfui nAeB SaLb_sIlN_TnEoRnNnAuLl_lA T_TNRoInBnUuTlEl_
C      A| P                     ^T
URED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:801:45: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  801 |   Condition(bool (*absl_nonnull func)(void* absl_nullability_unknown),
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:802:19: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  802 |             void* absl_nullability_unknown arg);
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:814:42: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  814 |   Condition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:830:36: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  830 |       bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:831:46: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  831 |       typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:844:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  844 |       T* absl_nonnull object,
      |          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2shapeutil_contains_brute_force.ccs2/s2winding_operation.cc::1819:
:
In file included from In file included from ../src/s2/s2shapeutil_contains_brute_force.h../src/s2/s2winding_operation.h::2223:
:
In file included from In file included from ../src/s2/s2shape.h../src/s2/s2builder.h::2731:
:
In file included from In file included from ../src/s2/s2pointutil.h/usr/local/clang/include/absl/container/flat_hash_set.h::2743:
:
In file included from ../src/s2/util/math/matrix3x3.h/usr/local/clang/include/absl/container/hash_container_defaults.h::27619::
5In file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :59warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/strings/cord.h
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31  :
276/usr/local/clang/include/absl/synchronization/mutex.h | : 850 : 16 :S 2warning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]C
HE  C850K | _ N E ( d e tc,o nVsTty pTe*( 0a)b)s l<_<n o"n nCualnl' to bijnevcetr,s
e      .|                 ^D
et/usr/local/clang/include/absl/base/nullability.he:r241m:i22n:a nnote: texpanded from macro 'absl_nonnull' 
=   0241. | "#;d
e      f| i    ^n
e ab../src/s2/base/logging.hs:l37_:n21o:n nnote: uexpanded from macro 'S2_CHECK_NE'l
l    _37N | o#ndneufliln
e       | S                     ^2
_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3In file included from :s2/s2winding_operation.cc :19note: :
expanded from macro 'CHECK_NE'In file included from 
../src/s2/s2winding_operation.h:23:
  In file included from 120../src/s2/s2builder.h | : 31 :
AIn file included from B/usr/local/clang/include/absl/container/flat_hash_set.hS:L43_:
LIn file included from O/usr/local/clang/include/absl/container/hash_container_defaults.hG:_19I:
NIn file included from T/usr/local/clang/include/absl/container/internal/hash_function_defaults.hE:R59N:
AIn file included from L/usr/local/clang/include/absl/strings/cord.h:_94C:
HIn file included from E/usr/local/clang/include/absl/strings/internal/cordz_info.hC:K31_:
N/usr/local/clang/include/absl/synchronization/mutex.hE:_851I:45M:P Lwarning: (type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension](
val  1851) | ,   # v a l 1b,o o(lv a(la2b)s,l :#:vtaylp2e)_
i      d| e  ^n
ti/usr/local/clang/include/absl/log/internal/check_impl.ht:y51<:T3>:: :note: texpanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'y
pe:   :51* |   a bAsBlS_Ln_oLnOnGu_lIlN TmEeRtNhAoLd_)C(H)E
C      K| _                                            ^O
P(/usr/local/clang/include/absl/base/nullability.hC:h241e:c22k:_ Nnote: Eexpanded from macro 'absl_nonnull',
 !  =241, |  #vdaelf1i,n ev aalb1s_lt_enxotn,n uvlall 2_,N ovnanlu2l_lt
e      x| t                     ^)

      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   whiIn file included from ls2/s2winding_operation.cce: 19(:
cIn file included from o../src/s2/s2winding_operation.hn:s23t:
 In file included from c../src/s2/s2builder.hh:a31r:
*In file included from  /usr/local/clang/include/absl/container/flat_hash_set.ha:b43s:
lIn file included from _/usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
n  855 | u l leaxbpllei caibts lC_olnodgi_tiinotne(rcnoanls_tc hbeocokl_*o pa_brsels_unlotn n u l l   c o n d ) ;\
      
|                                        ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22/usr/local/clang/include/absl/base/nullability.h:: 257:note: 23expanded from macro 'absl_nonnull':
 note:   241expanded from macro 'absl_nullable' | 
#de  f257i | n#ed eafbisnle_ naobnsnlu_lnlu l_lNaobnlneu l_lN
u      l| l                     ^a
ble
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:In file included from 19s2/s2shapeutil_contains_brute_force.cc:
:In file included from 18/usr/local/clang/include/absl/container/internal/hash_function_defaults.h:
:In file included from 59../src/s2/s2shapeutil_contains_brute_force.h:
:In file included from 22/usr/local/clang/include/absl/strings/cord.h:
:In file included from 94../src/s2/s2shape.h:
:In file included from 27/usr/local/clang/include/absl/strings/internal/cordz_info.h:
:In file included from 31../src/s2/s2pointutil.h:
:27/usr/local/clang/include/absl/synchronization/mutex.h:
:886../src/s2/util/math/matrix3x3.h::31276:: 5:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 | ../src/s2/base/logging.h : 37e:x21p:l inote: cexpanded from macro 'S2_CHECK_NE'i
t C   o37n | d#idteifoinn(ec oSn2s_tC HTE*C Ka_bNsEl _CnHoEnCnKu_lNlE 
o      b| j                    ^)

      | /usr/local/clang/include/absl/log/check.h                              ^:
120:3/usr/local/clang/include/absl/base/nullability.h:: 241:note: 22expanded from macro 'CHECK_NE':
 note: expanded from macro 'absl_nonnull'  
120 |    241  | A#BdSeLf_iLnOeG _aIbNsTlE_RnNoAnLn_uClHlE C_KN_oNnEn_uIlMlP
L      (| (                     ^v
al1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NIn file included from Es2/s2winding_operation.cc,: 19!:
=In file included from ,../src/s2/s2winding_operation.h :v23a:
lIn file included from 1../src/s2/s2builder.h,: 31v:
aIn file included from l/usr/local/clang/include/absl/container/flat_hash_set.h1:_43t:
eIn file included from x/usr/local/clang/include/absl/container/hash_container_defaults.ht:,19 :
vIn file included from a/usr/local/clang/include/absl/container/internal/hash_function_defaults.hl:259,:
 In file included from v/usr/local/clang/include/absl/strings/cord.ha:l942:
_In file included from t/usr/local/clang/include/absl/strings/internal/cordz_info.he:x31t:
)/usr/local/clang/include/absl/synchronization/mutex.h
:      896| :  ^31
: /usr/local/clang/include/absl/log/internal/check_op.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]75
:61:   note: 896expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' | 
  e   x75p | l i cAiBtS LC_oLnOdGi_tIiNoTnE(RcNoAnLs_tC HTE*C Ka(b:s:la_bnsoln:n:uilmlp loibcji)t
_      c| a                              ^s
t</usr/local/clang/include/absl/base/nullability.hc:o241n:s22t:  cnote: hexpanded from macro 'absl_nonnull'a
r*   241a | b#sdle_fnionnen ualbls>l(_ n o n n u\l
l       | _                                                            ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^
note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:922:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  922 |   static bool GuaranteedEqual(const Condition* absl_nullable a,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:923:48: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  923 |                               const Condition* absl_nullable b);
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:948:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  948 |   bool (*absl_nullable eval_)(const Condition* absl_nonnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:951:9: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  951 |   void* absl_nullable arg_ = nullptr;
      |         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:954:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  954 |   static bool CallVoidPtrFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:956:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  956 |   static bool CastAndCallFunction(const Condition* absl_nonnull c);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CastAndCallMethod(const Condition* absl_nonnull c);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:975:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  975 |   inline void ReadCallback(T* absl_nonnull callback) const {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:979:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  979 |   static bool AlwaysTrue(const Condition* absl_nullable) { return true; }
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1033:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1033 |   void Wait(Mutex* absl_nonnull mu) {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1050:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |   bool WaitWithTimeout(Mutex* absl_nonnull mu, absl::Duration timeout) {
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.hIn file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:32:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   32 | size_t GetEstimatedMemoryUsage(const CordRep* absl_nonnull rep);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:50:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   50 | size_t GetMorePreciseMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:86:
/usr/local/clang/include/absl/strings/cord_analysis.h:56:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   56 | size_t GetEstimatedFairShareMemoryUsage(const CordRep* absl_nonnull rep);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1069:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1069 |   bool WaitWithDeadline(Mutex* absl_nonnull mu, absl::Time deadline) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1158:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1158 |       Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                     ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1166:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1166 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1179:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1179 |   Mutex* absl_nullable mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1212:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1212 | bool Condition::CastAndCallMethod(const Condition* absl_nonnull c) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1221:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1221 | bool Condition::CastAndCallFunction(const Condition* absl_nonnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1231:8: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1231 |     T* absl_nullability_unknown arg)
      |        ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1241 |     bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1250:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1250 |     bool (absl::type_identity<T>::type::* absl_nonnull method)())
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1259:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1259 |     const T* absl_nonnull object,
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1260:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1260 |     bool (absl::type_identity<T>::type::* absl_nonnull method)()
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1279:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1279 | void RegisterMutexProfiler(void (*absl_nonnull fn)(int64_t wait_cycles));
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1294:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1294 |                                                  const void* absl_nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:109:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  109 | void CopyCordToString(const Cord& src, std::string* /usr/local/clang/include/absl/container/internal/btree_container.ha:b532s:l24_:n owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ul  l532  | d s t ) ; 
        |                                                      ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :f anote: lexpanded from macro 'absl_nonnull's
e)  ;241
 |       #| d                       ^e
fi/usr/local/clang/include/absl/container/internal/btree_container.hn:e496 :a9b:s lnote: _macro 'ABSL_INTERNAL_X' defined heren
onn  u496l | l# d_eNfoinnneu lAlB
S      L| _                     ^I
NTERNAL_X(Func, Callee, KQual,In file included from  s2/s2winding_operation.ccM:Q19u:
aIn file included from l../src/s2/s2winding_operation.h,: 23K:
VIn file included from a../src/s2/s2builder.hl:u31e:
,In file included from  /usr/local/clang/include/absl/container/flat_hash_set.hM:V43a:
lIn file included from u/usr/local/clang/include/absl/container/hash_container_defaults.he:,19 :
.In file included from ./usr/local/clang/include/absl/container/internal/hash_function_defaults.h.:)59 :
 /usr/local/clang/include/absl/strings/cord.h : 110 :\55
:       | warning:         ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  110 | void AppendCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_AIn file included from RGS_s2/s2winding_operation.cc_:
19      :
| In file included from         ^../src/s2/s2winding_operation.h
:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void In file included from Cs2/s2text_format.cco:p16y:
CIn file included from o../src/s2/s2text_format.hr:d34T:
oIn file included from S../src/s2/mutable_s2shape_index.ht:r30i:
nIn file included from g/usr/local/clang/include/absl/container/btree_map.h(:c67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hs:t534 :C23o:r dwarning: &passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
src  ,534  | s t d : : s t r i n g *   a b s l _ ntornuneu)l;l
       d| s                      ^t
);/usr/local/clang/include/absl/container/internal/btree_container.h
:      496| :                                                             ^9
: note: /usr/local/clang/include/absl/base/nullability.hmacro 'ABSL_INTERNAL_X' defined here:
241:22:   496 | note: #expanded from macro 'absl_nonnull'd
efin  e241  | A#BdSeLf_iInNeT EaRbNsAlL__nXo(nFnuunlcl,  _CNaolnlneuel,l 
K      Q| u                     ^a
l, MQual, KValue, MValue, ...In file included from )s2/s2winding_operation.cc : 19 :
 In file included from  ../src/s2/s2winding_operation.h\:
23      :
| In file included from         ^../src/s2/s2builder.h
:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:437:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  437 |                                  std::string* absl_nonnull dst);
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:480:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  480 |     using pointer = const value_type* absl_nonnull;
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite*In file included from  s2/s2winding_operation.cca:b19s:
lIn file included from _../src/s2/s2winding_operation.hn:o23n:
nIn file included from u../src/s2/s2builder.hl:l31 :
vIn file included from )/usr/local/clang/include/absl/container/flat_hash_set.h;:
43      :
| In file included from                                     ^/usr/local/clang/include/absl/container/hash_container_defaults.h
:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:/usr/local/clang/include/absl/base/nullability.h59::
241:/usr/local/clang/include/absl/strings/cord.h22::582 :37note: :expanded from macro 'absl_nonnull' 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]  
241 | #d  e582f | i n e   aebxspll_incointn uClhlu n_kNRoannnguel(lc
o      n| s                     ^t
 Cord* absl_nonnull cord) : cord_In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/util/math/exactfloat/exactfloat.h::126533:
:In file included from 3../src/s2/base/logging.h:: 22:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]/usr/local/clang/include/absl/log/log.h
:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:  20533:
 | In file included from  /usr/local/clang/include/absl/log/absl_vlog_is_on.h :A63B:
S/usr/local/clang/include/absl/log/internal/vlog_config.hL:_63I:N43T:E Rwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
L_X(   i63n | s e retx_polri_caists icgonn,s tienxsperr tV_Loorg_Saistsei(gcno_nismtp lc,h acro*n satb s&l,_ n&o&n,n uflall sfe),

            | |                                           ^  ^

/usr/local/clang/include/absl/base/nullability.h:/usr/local/clang/include/absl/container/internal/btree_container.h241::50922::52 : note: note: expanded from macro 'absl_nonnull'expanded from macro 'ABSL_INTERNAL_X'

  241   | 509# | d e f i n e   a b s lA_BnSoLn_nIuNlTlE R_NNAoLn_nAuTlTlR
I      B| U                     ^T
E_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_falseIn file included from (s2/util/math/exactfloat/exactfloat.cci:f18_:
sIn file included from a../src/s2/util/math/exactfloat/exactfloat.ht:i126s:
fIn file included from i../src/s2/base/logging.he:d22,:
 In file included from ./usr/local/clang/include/absl/log/log.h.:.209):
 In file included from _/usr/local/clang/include/absl/log/internal/log_impl.h_:V20A:
_In file included from A/usr/local/clang/include/absl/log/absl_vlog_is_on.hR:G63S:
_/usr/local/clang/include/absl/log/internal/vlog_config.h_:
96      :| 60        ^:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friendIn file included from  s2/s2text_format.cci:n16t:
 In file included from l../src/s2/s2text_format.ho:g34_:
iIn file included from n../src/s2/mutable_s2shape_index.ht:e30r:
nIn file included from a/usr/local/clang/include/absl/container/btree_map.hl::67::
R/usr/local/clang/include/absl/container/internal/btree_container.he:g533i:s3t:e rwarning: Apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
dIn  i533t | i a lAiBzSeL(_VILNoTgESRiNtAeL*_ Xa(bisnls_enrotn_nourl_la svs)i;g
n      ,|                                                             ^i
nse/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241_ | i#mdpelf,i nceo nasbts l&_,n o&n&n,u lfla l_sNeo,n
n      u| l  ^l

      /usr/local/clang/include/absl/container/internal/btree_container.h| :                     ^511
:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define abs/usr/local/clang/include/absl/container/internal/btree_container.hl:_536n:o24n:n uwarning: lpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
 _  N536o | n n u l l 
        |                       ^ 
         false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:667:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  667 |   static Cord AdvanceAndRead(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:674:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  674 |   static void Advance(CharIterator* absl_nonnull it, size_t n_bytes);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:730:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  730 |     explicit CharRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:795:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  795 |   friend void AbslFormatFlush(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSIn file included from Ls2/util/math/exactfloat/exactfloat.cc_:I18N:
TIn file included from E../src/s2/util/math/exactfloat/exactfloat.hR:N126A:
LIn file included from _../src/s2/base/logging.hA:T22T:
RIn file included from I/usr/local/clang/include/absl/log/log.hB:U209T:
EIn file included from _/usr/local/clang/include/absl/log/internal/log_impl.hC:A20P:
TIn file included from U/usr/local/clang/include/absl/log/absl_vlog_is_on.hR:E63D:
_B/usr/local/clang/include/absl/log/internal/vlog_config.hY:(133t:h37i:s ))warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       133  |  i n t   R e g i s t e r A n d I n\i
t      i| a                                              ^~~~l
ize(VLo/usr/local/clang/include/absl/container/internal/btree_container.hg:S537i:t3e:*  warning: apassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]b
s/usr/local/clang/include/absl/container/internal/btree_container.hl:_511n:o52n:n unote: lexpanded from macro 'ABSL_INTERNAL_X'l
 v)  ;511
 |        |                                      ^ 
    /usr/local/clang/include/absl/base/nullability.h : 241 :A22B:S Lnote: _expanded from macro 'absl_nonnull'I
NT  E241R | N#AdLe_fAiTnTeR IaBbUsTlE__nCoAnPnTuUlRlE D__NBoYn(ntuhlils
)      )| )                     ^ 
                       \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satiIn file included from ss2/util/math/exactfloat/exactfloat.ccf:i18e:
dIn file included from ,../src/s2/util/math/exactfloat/exactfloat.h :.126.:
.In file included from )../src/s2/base/logging.h :i22f:
_In file included from s/usr/local/clang/include/absl/log/log.ha:t209i:
sIn file included from f/usr/local/clang/include/absl/log/internal/log_impl.hi:e20d:

In file included from       /usr/local/clang/include/absl/log/absl_vlog_is_on.h| :        ^63
:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  In file included from 157s2/s2text_format.cc | :V16L:
oIn file included from g../src/s2/s2text_format.hS:i34t:
eIn file included from *../src/s2/mutable_s2shape_index.h :a30b:
sIn file included from l/usr/local/clang/include/absl/container/btree_map.h_:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl:a537b:l3e:  Swarning: e'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]t
VMod  u537l | e L iAsBtSHLe_aIdNFToErRTNeAsLt_OXn(liyn(s
e      r| t          ^_
or/usr/local/clang/include/absl/base/nullability.h_:a257s:s23i:g nnote: ,expanded from macro 'absl_nullable' 
in  s257e | r#td_eofri_naes saibgsnl__inullable _Nullable
      |                       ^
In file included from s2/util/math/exactfloat/exactfloat.cc:18:
In file included from ../src/s2/util/math/exactfloat/exactfloat.h:126:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullable GetCordzInfoForTesting(
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:927:43: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  927 |                                  CordRep* absl_nullable rep);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:929:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  929 |     void Swap(InlineRep* absl_nonnull rhs);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:932:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  932 |     const char* absl_nullable data() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:935:11: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  935 |     char* absl_nonnull set_data(size_t n);  // Write data to the result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_internal::CordRep* absl_nullable tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:938:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  938 |     absl::cord_internal::CordRep* absl_nonnull as_tree() const;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnulmpl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAl _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |     const char* absl_nonnull as_chars() const;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:941:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  941 |     absl::cord_internal::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:950:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  950 |     CordRepFlat* absl_nonnull MakeFlatWithExtraCapacity(size_t extra);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:957:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  957 |     void SetTree(CordRep* absl_nonnull rep, const CordzUpdateScope& scope);
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:961:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  961 |     void SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:972:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  972 |     void EmplaceTree(CordRep* absl_nonnull rep, const InlineData& parent,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:978:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  978 |     void CommitTree(const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:982:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  982 |     void AppendTreeToInlined(CordRep* absl_nonnull tree,
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: L_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      | note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:984:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  984 |     void AppendTreeToTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:985:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  985 |     void AppendTree(CordRep* absl_nonnull tree, MethodIdentifier method);
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NIn file included from os2/s2wedge_relations.ccn:n18u:
lIn file included from l../src/s2/s2wedge_relations.h
:      24| :
                     ^In file included from 
../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :s2/s2winding_operation.cc489::1914:
:In file included from  ../src/s2/s2winding_operation.h:warning: 23:
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h  :48943 | :
 In file included from  /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from v/usr/local/clang/include/absl/container/internal/hash_function_defaults.ho:i59d:
 /usr/local/clang/include/absl/strings/cord.h(:*986a:b40s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b986l | e   i n vvaoriida nPtr)e(pveoniddT*r eaebTsolI_nnluilnleadb(iCloirtdyR_eupn*k naobwsnl)_,n
o      n| n             ^u
ll t/usr/local/clang/include/absl/base/nullability.hr:e257e:,23
:       | note:                                        ^expanded from macro 'absl_nullable'

/usr/local/clang/include/absl/base/nullability.h  :257241 | :#22d:e fnote: iexpanded from macro 'absl_nonnull'n
e   a241b | s#ld_enfuilnlea balbes l__Nnuolnlnaubllle 
_      N| o                      ^n
null
      | In file included from                      ^s2/s2wedge_relations.cc
:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :s2/s2winding_operation.cc29::
19In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2winding_operation.h94::
23In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :../src/s2/s2builder.h31::
31/usr/local/clang/include/absl/synchronization/mutex.h:
:In file included from 489/usr/local/clang/include/absl/container/flat_hash_set.h::4543::
 In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hwarning: :type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]19
:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59  :
489/usr/local/clang/include/absl/strings/cord.h | : 988 : 37 :   warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
id (  *988a | b s l _ nvuolilda bPlree piennvdaTrrieaenTto)T(rveoei(dC*o radbRselp_*n ualblsalb_inlointnyu_luln ktnroewen,) ,M
e      t| h                                            ^o
dI/usr/local/clang/include/absl/base/nullability.hd:e289n:t34i:f inote: eexpanded from macro 'absl_nullability_unknown'r
 me  t289h | o#dd)e;f
i      n| e                                    ^ 
ab/usr/local/clang/include/absl/base/nullability.hs:l241_:n22u:l lnote: aexpanded from macro 'absl_nonnull'b
il  i241t | y#_duenfkinnoew na b_sNlu_lnlo_nunnuslple c_iNfoinendu
l      l| 
                                 ^      
|                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.hIn file included from :s2/s2winding_operation.cc24::
19In file included from :
../src/s2/s2point.hIn file included from :../src/s2/s2winding_operation.h27::
23In file included from :
../src/s2/s2coder.hIn file included from :../src/s2/s2builder.h23::
31In file included from :
/usr/local/clang/include/absl/status/status.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h67::
43In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h29::
19In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h94::
59In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.h:/usr/local/clang/include/absl/strings/cord.h31::
989/usr/local/clang/include/absl/synchronization/mutex.h::31490:: 13:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
    989490 |  |         v o ivdo iPdr*e paebnsdlT_rneuel(lCaobridlRietpy*_ uanbksnlo_wnno nanrugl)l; 
t      r| e            ^e
, /usr/local/clang/include/absl/base/nullability.hM:e289t:h34o:d Inote: dexpanded from macro 'absl_nullability_unknown'e
nti  f289i | e#rd emfeitnheo da)b;s
l      _| n                              ^u
ll/usr/local/clang/include/absl/base/nullability.ha:b241i:l22i:t ynote: _expanded from macro 'absl_nonnull'u
nk  n241o | w#nd e_fNiunlel _aubnsslp_encoinfniueldl
       _| N                                 ^o
nnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
In file included from /usr/local/clang/include/absl/synchronization/mutex.hs2/s2winding_operation.cc::49919::
35In file included from :../src/s2/s2winding_operation.h :23warning: :
In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]../src/s2/s2builder.h
:31:
In file included from   /usr/local/clang/include/absl/container/flat_hash_set.h499: | 43 :
 In file included from v/usr/local/clang/include/absl/container/hash_container_defaults.ho:i19d:
 In file included from E/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:a59b:
l/usr/local/clang/include/absl/strings/cord.he:D994e:b30u:g Lwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]g
(co  n994s | t   c h avro*i da bCsolp_ynTuol(lsatbdl:e: sntarmien)g;*
       a| b                                  ^s
l_/usr/local/clang/include/absl/base/nullability.hn:o257n:n23u:l lnote:  expanded from macro 'absl_nullable'd
st  )257  | c#odnesfti n{e
       a| b                             ^s
l_/usr/local/clang/include/absl/base/nullability.hn:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull' 
_N  u241l | l#adbelfei
n      e|                        ^a
bsl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.hIn file included from :s2/s2wedge_relations.cc19::
18In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.hIn file included from :../src/s2/s2wedge_relations.h59::
24:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2point.h999::2728:
:In file included from  ../src/s2/s2coder.h:warning: 23type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/status/status.h:67  :
999In file included from  | /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from v/usr/local/clang/include/absl/strings/cord.ho:i94d:
 In file included from C/usr/local/clang/include/absl/strings/internal/cordz_info.ho:p31y:
T/usr/local/clang/include/absl/synchronization/mutex.ho:A549r:r40a:y (warning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]h
ar*   a549b | s l _sntoantniucl lv odisdt )I nccornesmte;n
t      S| y                           ^n
ch/usr/local/clang/include/absl/base/nullability.hS:e241m:(22M:u tnote: eexpanded from macro 'absl_nonnull'x
*   a241b | s#ld_enfoinnneu lalb smlu_,n
o      n| n                                       ^u
ll /usr/local/clang/include/absl/base/nullability.h_:N241o:n22n:u lnote: lexpanded from macro 'absl_nonnull'

      |                      ^  
241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2winding_operation.ccs2/s2wedge_relations.cc::1918:
:
In file included from In file included from ../src/s2/s2winding_operation.h../src/s2/s2wedge_relations.h::2324:
:
In file included from In file included from ../src/s2/s2builder.h../src/s2/s2point.h::3127:
:
In file included from In file included from /usr/local/clang/include/absl/container/flat_hash_set.h../src/s2/s2coder.h::4323:
:
In file included from In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h/usr/local/clang/include/absl/status/status.h::1967:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h/usr/local/clang/include/absl/status/internal/status_internal.h::5929:
:
In file included from /usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/strings/cord.h::101294::
37In file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h :31warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/synchronization/mutex.h
:550:64:  1012 | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
  ab  s550l | : : c o r d _ i n t e r n a l : : C o r d z I n f o *   a b s l _bnauslel_aibnltee rcnoarld:z:_PienrThread        ^S
ynch* absl_nonnull w);
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:551:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  551 |   static bool In file included from Ds2/s2text_format.cce:c16r:
eIn file included from m../src/s2/s2text_format.he:n34t:
SIn file included from y../src/s2/mutable_s2shape_index.hn:c30h:
SIn file included from e/usr/local/clang/include/absl/container/btree_map.hm:(67M:
u/usr/local/clang/include/absl/container/internal/btree_container.ht:e547x:*23 :a bwarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]l
_no  n547n | u l l   m u , 
        |                                         ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :t rnote: uexpanded from macro 'absl_nonnull'e
);  
241       | | #                      ^d
ef/usr/local/clang/include/absl/container/internal/btree_container.hi:n496e: 9a:b snote: lmacro 'ABSL_INTERNAL_X' defined here_
non  n496u | l#ld e_fNionnen uAlBlS
L      _| I                     ^N
TERNAL_X(FIn file included from us2/s2wedge_relations.ccn:c18,:
 In file included from C../src/s2/s2wedge_relations.ha:l24l:
eIn file included from e../src/s2/s2point.h,: 27K:
QIn file included from u../src/s2/s2coder.ha:l23,:
 In file included from M/usr/local/clang/include/absl/status/status.hQ:u67a:
lIn file included from ,/usr/local/clang/include/absl/status/internal/status_internal.h :K29V:
aIn file included from l/usr/local/clang/include/absl/strings/cord.hu:e94,:
 In file included from M/usr/local/clang/include/absl/strings/internal/cordz_info.hV:a31l:
u/usr/local/clang/include/absl/synchronization/mutex.he:,552 :.64.:. )warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     \552
 |        |          ^ 
                             base_internal::PerThreadSynch* absl_nonnull w,
      |                                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_IIn file included from Ns2/s2wedge_relations.ccT:E18R:
NIn file included from A../src/s2/s2wedge_relations.hL:_24X:
(In file included from i../src/s2/s2point.hn:s27e:
rIn file included from t../src/s2/s2coder.h_:o23r:
_In file included from a/usr/local/clang/include/absl/status/status.hs:s67i:
gIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.h,: 29i:
nIn file included from s/usr/local/clang/include/absl/strings/cord.he:r94t:
_In file included from o/usr/local/clang/include/absl/strings/internal/cordz_info.hr:_31a:
s/usr/local/clang/include/absl/synchronization/mutex.hs:i556g:n38_:i mwarning: ptype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
, &&  ,556  | c o nvsoti d& ,L otcrkuSel,o
w      L| o  ^o
p(/usr/local/clang/include/absl/container/internal/btree_container.hS:y509n:c52h:W anote: iexpanded from macro 'ABSL_INTERNAL_X't
Par  a509m | s *   a b s l _ n o nAnBuSlLl_ IwNaTiEtRpN,A Li_nAtT TfRlIaBgUsT)E;_
C      A| P                                     ^T
UR/usr/local/clang/include/absl/base/nullability.hE:D241_:B22Y:( tnote: hexpanded from macro 'absl_nonnull'i
s)  )241, |  # d e f i n e   a b s l _ n o n n u l l   _ N o\n
n      u| l                                                   ^l

      | /usr/local/clang/include/absl/container/internal/common.h                     ^:
31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define AIn file included from Bs2/s2wedge_relations.ccS:L18_:
IIn file included from N../src/s2/s2wedge_relations.hT:E24R:
NIn file included from A../src/s2/s2point.hL:_27I:
FIn file included from _../src/s2/s2coder.ht:r23u:
eIn file included from (/usr/local/clang/include/absl/status/status.hi:f67_:
sIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.ht:i29s:
fIn file included from i/usr/local/clang/include/absl/strings/cord.he:d94,:
 In file included from ./usr/local/clang/include/absl/strings/internal/cordz_info.h.:.31):
 /usr/local/clang/include/absl/synchronization/mutex.hi:f558_:s35a:t iwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f
ied  
558       | |          ^ 
bool LockSlowWitIn file included from hs2/s2text_format.ccD:e16a:
dIn file included from l../src/s2/s2text_format.hi:n34e:
(In file included from M../src/s2/mutable_s2shape_index.hu:H30o:
wIn file included from  /usr/local/clang/include/absl/container/btree_map.ha:b67s:
l/usr/local/clang/include/absl/container/internal/btree_container.h_:n546o:n3n:u lwarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
how,
        | 546                                  ^ | 
  /usr/local/clang/include/absl/base/nullability.hA:B241S:L22_:I Nnote: Texpanded from macro 'absl_nonnull'E
RN  A241L | _#Xd(eifnisneer ta_bosrl__ansosningunl,l  i_nNsoenrntu_lolr
_      a| s                     ^s
ign_impl,In file included from  s2/s2wedge_relations.cc&:&18,:
 In file included from c../src/s2/s2wedge_relations.ho:n24s:
tIn file included from  ../src/s2/s2point.h&:,27 :
tIn file included from r../src/s2/s2coder.hu:e23,:

In file included from       /usr/local/clang/include/absl/status/status.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~67
:
In file included from   /usr/local/clang/include/absl/status/internal/status_internal.h547: | 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 559 : 46 :  twarning: rtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]u
e);  
559       | |                    ~~~~~ 
   /usr/local/clang/include/absl/container/internal/btree_container.h : 509 : 47 :   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |                   c oAnBsStL _CIoNnTdEiRtNiAoLn_*A TaTbRsIlB_UnTuEl_lCaAbPlTeU RcEoDn_dB,Y
(      t| h                                             ^i
sIn file included from )s2/util/math/exactfloat/exactfloat.cc)/usr/local/clang/include/absl/base/nullability.h,: : 35257 :
 :In file included from  23 /usr/local/clang/include/absl/numeric/int128.h: :  41note:  :
expanded from macro 'absl_nullable' 
/usr/local/clang/include/absl/types/compare.h :   78 257:  | 22# : d  e warning: f 'enable_if' is a clang extension [-Wgcc-compat] i n
 e   a\b   s
78l       | _|  n                                              ^~~~ u
 l l a b_l_e/usr/local/clang/include/absl/container/internal/btree_container.ha :t_546tN:ru3il:bl uawarning: tbpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]el
_e/usr/local/clang/include/absl/container/internal/btree_container.h_
:(      511(| :e                      ^52n
:a bnote: lexpanded from macro 'ABSL_INTERNAL_X'e
_if  (511n |   = =   0 ,   " O n lAyBIn file included from  Ss2/s2wedge_relations.ccLl_:iI18tN:
eTIn file included from rE../src/s2/s2wedge_relations.haR:NlA24 L:
`_In file included from 0A../src/s2/s2point.h`T: T27iR:
sIIn file included from  B../src/s2/s2coder.hUaT:lE23l_:
oCIn file included from wA/usr/local/clang/include/absl/status/status.heP:dT67.U:
"RIn file included from )E/usr/local/clang/include/absl/status/internal/status_internal.h)D:)_29 B:
{YIn file included from }(/usr/local/clang/include/absl/strings/cord.h
t:h      i94| s:
)                     ^In file included from )
)/usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 562 : 23 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       562  |      v o i\d
       L| o                                                   ^c
kS/usr/local/clang/include/absl/container/internal/common.hl:o31w:(9M:u Hnote: omacro 'ABSL_INTERNAL_IF_true' defined herew
 ab   s31l | _#ndoenfniunlel  AhBoSwL,_ IcNoTnEsRtN ACLo_nIdFi_ttiroune*( iafb_ssla_tniuslfliaebdl,e  .c.o.n)d ,i
f      _| s                      ^a
ti/usr/local/clang/include/absl/base/nullability.hs:f241i:e22d:
       | note:         ^expanded from macro 'absl_nonnull'

  241 | #define In file included from as2/s2text_format.ccb:s16l:
_In file included from n../src/s2/s2text_format.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30_:
NIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl:
546      :| 3                     ^:
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546In file included from  | s2/s2wedge_relations.cc : 18A:
BIn file included from S../src/s2/s2wedge_relations.hL:_24I:
NIn file included from T../src/s2/s2point.hE:R27N:
AIn file included from L../src/s2/s2coder.h_:X23(:
iIn file included from n/usr/local/clang/include/absl/status/status.hs:e67r:
tIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.ho:r29_:
aIn file included from s/usr/local/clang/include/absl/strings/cord.hs:i94g:
nIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :i31n:
s/usr/local/clang/include/absl/synchronization/mutex.he:r562t:_58o:r _warning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s
sign  _562i | m p lv,o i&d& ,L occoknSslto w&(,M utHrouwe ,a
b      s| l  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
no  n547n | u l l   h o w ,   c o n s t   C o n dtirtuieo)n;*
       a| b                  ~~~~~s
l_n/usr/local/clang/include/absl/container/internal/btree_container.hu:l511l:a47b:l enote:  expanded from macro 'ABSL_INTERNAL_X'c
ond  ,511
 |        |                                                           ^ 
  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nAeT TaRbIsBlU_TnEu_lClAaPbTlUeR E_DN_uBlYl(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_sataiblfe
o      (| )                      ^ 
const {
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2wedge_relations.cca:b18s:
lIn file included from _../src/s2/s2wedge_relations.hn:u24l:
lIn file included from a../src/s2/s2point.hb:l27e:
 In file included from _../src/s2/s2coder.hN:u23l:
lIn file included from a/usr/local/clang/include/absl/status/status.hb:l67e:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                      ^29
:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:565:36: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  565 |   void UnlockSlIn file included from os2/s2winding_operation.ccw:(19S:
yIn file included from n../src/s2/s2winding_operation.hc:h23W:
aIn file included from i../src/s2/s2builder.ht:P31a:
rIn file included from a/usr/local/clang/include/absl/container/flat_hash_set.hm:s43*:
 In file included from a/usr/local/clang/include/absl/container/hash_container_defaults.hb:s19l:
_In file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hu:l59l:
a/usr/local/clang/include/absl/strings/cord.hb:l1017e: 51w:a iwarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]p
) AB S1017L | _ A T T RvIoBiUdT Es_eCtO_LcDo;r
d      z| _                                   ^i
nf/usr/local/clang/include/absl/base/nullability.ho:(257c:o23r:d _note: iexpanded from macro 'absl_nullable'n
te  r257n | a#ld:e:fCionred zaIbnsflo_*n ualblsalb_lneo n_nNuullll acbolred
z      _| i                      ^n
fo) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:576:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  576 |   void TryRemove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22:In file included from  s2/s2winding_operation.cc:note: 19expanded from macro 'absl_nonnull':

In file included from ../src/s2/s2winding_operation.h:  23241:
 | In file included from #../src/s2/s2builder.hd:e31f:
iIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.he: 43a:
bIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.hl:_19n:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:u59l:
l/usr/local/clang/include/absl/strings/cord.h :_1049N:o56n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
 1049 |   static bool GetIn file included from Fs2/s2wedge_relations.ccl:a18t:
AIn file included from u../src/s2/s2wedge_relations.hx:(24a:
bIn file included from s../src/s2/s2point.hl::27::
cIn file included from o../src/s2/s2coder.hr:d23_:
iIn file included from n/usr/local/clang/include/absl/status/status.ht:e67r:
nIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl::29::
CIn file included from o/usr/local/clang/include/absl/strings/cord.hr:d94R:
eIn file included from p/usr/local/clang/include/absl/strings/internal/cordz_info.h*: 31a:
b/usr/local/clang/include/absl/synchronization/mutex.hs:l578_:n45o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l r  e578p | , 
       v| o                                                       ^i
d /usr/local/clang/include/absl/base/nullability.hB:l241o:c22k:( bnote: aexpanded from macro 'absl_nonnull's
e_  i241n | t#edrenfailn:e: PaebrsTlh_rneoandnSuylnlc h_*N oanbnsull_ln
o      n| n                     ^u
ll s);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2winding_operation.cc :19note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2winding_operation.h:23  :
241In file included from  | ../src/s2/s2builder.h#:d31e:
fIn file included from i/usr/local/clang/include/absl/container/flat_hash_set.hn:e43 :
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hs:l19_:
nIn file included from o/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:n59u:
l/usr/local/clang/include/absl/strings/cord.hl: 1050_:N45o:n nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l
      |                       ^1050
 |                  In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24a:
bIn file included from s../src/s2/s2point.hl::27::
sIn file included from t../src/s2/s2coder.hr:i23n:
gIn file included from _/usr/local/clang/include/absl/status/status.hv:i67e:
wIn file included from */usr/local/clang/include/absl/status/internal/status_internal.h :a29b:
sIn file included from l/usr/local/clang/include/absl/strings/cord.h_:n94o:
nIn file included from n/usr/local/clang/include/absl/strings/internal/cordz_info.hu:l31l:
 /usr/local/clang/include/absl/synchronization/mutex.hf:r580a:g34m:e nwarning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension])
;
      |                                               ^580
 |  /usr/local/clang/include/absl/base/nullability.h :b241a:s22e:_ inote: nexpanded from macro 'absl_nonnull't
er  n241a | l#:d:ePfeirnTeh raebasdlS_ynnocnhn*u lalb s_lN_onnunlullalb
l      e|                       ^W
akeup(
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #definIn file included from es2/s2winding_operation.cc :a19b:
sIn file included from l../src/s2/s2winding_operation.h_:n23u:
lIn file included from l../src/s2/s2builder.ha:b31l:
eIn file included from  /usr/local/clang/include/absl/container/flat_hash_set.h_:N43u:
lIn file included from l/usr/local/clang/include/absl/container/hash_container_defaults.ha:b19l:
eIn file included from 
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h      :| 59                      ^:

/usr/local/clang/include/absl/strings/cord.h:1054:37: In file included from warning: s2/s2wedge_relations.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2wedge_relations.h: 241054:
 | In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.ha:b23s:
lIn file included from :/usr/local/clang/include/absl/status/status.h::c67o:
rIn file included from d/usr/local/clang/include/absl/status/internal/status_internal.h_:i29n:
tIn file included from e/usr/local/clang/include/absl/strings/cord.hr:n94a:
lIn file included from :/usr/local/clang/include/absl/strings/internal/cordz_info.h::C31o:
r/usr/local/clang/include/absl/synchronization/mutex.hd:R581e:p38*:  awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
l_n  o581n | n u l l   r ebpa,s
e      _| i                                    ^n
te/usr/local/clang/include/absl/base/nullability.hr:n241a:l22::: Pnote: eexpanded from macro 'absl_nonnull'r
Th  r241e | a#ddSeyfnicnhe*  aabbssll__nnoonnnnuullll  _wN)o;n
n      u| l                                     ^l

      /usr/local/clang/include/absl/base/nullability.h| :                     ^241
:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1061:34: In file included from warning: s2/s2wedge_relations.cctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
18:
In file included from ../src/s2/s2wedge_relations.h: 241061:
 | In file included from  ../src/s2/s2point.h :v27o:
iIn file included from d../src/s2/s2coder.h :C23o:
pIn file included from y/usr/local/clang/include/absl/status/status.hT:o67A:
rIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.ha:y29S:
lIn file included from o/usr/local/clang/include/absl/strings/cord.hw:P94a:
tIn file included from h/usr/local/clang/include/absl/strings/internal/cordz_info.h(:c31h:
a/usr/local/clang/include/absl/synchronization/mutex.hr:*585 :a20b:s lwarning: _type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
onnu  l585l |   d svto)i dc oTnrsatn;s
(      M| u                                 ^H
ow/usr/local/clang/include/absl/base/nullability.h :a241b:s22l:_ nnote: oexpanded from macro 'absl_nonnull'n
nu  l241l |  #hdoewf)i;n e  /a/b suls_endo nfnourl lC o_nNdoVnanru-l>lM
u      t| e                     ^x
 transfer
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:586:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  586In file included from  | s2/s2winding_operation.cc : 19v:
oIn file included from i../src/s2/s2winding_operation.hd: 23F:
eIn file included from r../src/s2/s2builder.h(:b31a:
sIn file included from e/usr/local/clang/include/absl/container/flat_hash_set.h_:i43n:
tIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.hr:n19a:
lIn file included from :/usr/local/clang/include/absl/container/internal/hash_function_defaults.h::P59e:
r/usr/local/clang/include/absl/strings/cord.hT:h1078r:e33a:d Swarning: ytype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
ch*  a1078b | s l _anbosnln:u:lclo
r      d| _                                          ^i
nt/usr/local/clang/include/absl/base/nullability.he:r241n:a22l:: :note: Cexpanded from macro 'absl_nonnull'o
rd  R241e | p#*d eafbisnle_ naobnsnlu_lnlo nTnauklelR e_pN(o)n ncuolnls
t      &| ;                     ^

      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #In file included from ds2/s2wedge_relations.cce:f18i:
nIn file included from e../src/s2/s2wedge_relations.h :a24b:
sIn file included from l../src/s2/s2point.h_:n27o:
nIn file included from n../src/s2/s2coder.hu:l23l:
 In file included from _/usr/local/clang/include/absl/status/status.hN:o67n:
nIn file included from u/usr/local/clang/include/absl/status/internal/status_internal.hl:l29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h                     ^:
94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:590:40: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  590 | In file included from  s2/s2winding_operation.cc :e19x:
pIn file included from l../src/s2/s2winding_operation.hi:c23i:
tIn file included from  ../src/s2/s2builder.hM:u31t:
eIn file included from x/usr/local/clang/include/absl/container/flat_hash_set.h(:c43o:
nIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.ht: 19v:
oIn file included from l/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:t59i:
l/usr/local/clang/include/absl/strings/cord.he: 1079M:u33t:e xwarning: *type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
abs l1079_ | n u lalbsl::corsfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
able /*idg_nionrteedr*n/a)l :{:}C
o      r| d                                       ^R
ep*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l |  #TdaekfeiRneep (a)b s&l&_;n
u      l| l                                ^a
ble/usr/local/clang/include/absl/base/nullability.h :_241N:u22l:l anote: bexpanded from macro 'absl_nonnull'l
e
        | 241                      ^ | 
#define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:624:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:635:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 |   explicit MutexLock(Mutex* absl_nonnull mu) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:641:68: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  641 |   explicit MutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                    ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:649:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  649 |   explicit MutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INIn file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:670:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  670 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:678:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  678 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu) ABSL_SHARED_LOCK_FUNCTION(mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:681:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  681 |   explicit ReaderMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:689:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  689 |   explicit ReaderMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:710:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  710 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:718:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  718 |   explicit WriterMutexLock(Mutex* absl_nonnull mu)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:722:74: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  722 |   explicit WriterMutexLock(Mutex& mu ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                          ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:731:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  731 |   explicit WriterMutexLock(Mutex* absl_nonnull mu, const Condition& cond)
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
TERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^In file included from 
s2/s2wedge_relations.cc:18:
/usr/local/clang/include/absl/container/internal/common.hIn file included from :../src/s2/s2wedge_relations.h32::249:
:In file included from  ../src/s2/s2point.h:note: 27macro 'ABSL_INTERNAL_IF_false' defined here:

In file included from ../src/s2/s2coder.h:23   :
32In file included from  | /usr/local/clang/include/absl/status/status.h#:d67e:
fIn file included from i/usr/local/clang/include/absl/status/internal/status_internal.hn:e29 :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L94_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hT:E31R:
N/usr/local/clang/include/absl/synchronization/mutex.hA:L801_:I20F:_ fwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
se(i  f801_ | s a tCiosnfdiietdi,o n.(.b.o)o l_ _(V*Aa_bAsRlG_Sn_o_n
n      u| l        ^l
 func)(void* absl_nuIn file included from ls2/s2text_format.ccl:a16b:
iIn file included from l../src/s2/s2text_format.hi:t34y:
_In file included from u../src/s2/mutable_s2shape_index.hn:k30n:
oIn file included from w/usr/local/clang/include/absl/container/btree_map.hn:)67,:

/usr/local/clang/include/absl/container/internal/btree_container.h      :| 555                   ^:
3: /usr/local/clang/include/absl/base/nullability.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]241
:22:   note: 555expanded from macro 'absl_nonnull' | 
    A241B | S#Ld_eIfNiTnEeR NaAbLs_lX_(nionnsneurltl_ o_rN_oansnsuilgln
,       | i                     ^n
sert_oIn file included from rs2/s2wedge_relations.cc_:a18s:
sIn file included from i../src/s2/s2wedge_relations.hg:n24_:
hIn file included from i../src/s2/s2point.hn:t27_:
iIn file included from m../src/s2/s2coder.hp:l23,:
 In file included from c/usr/local/clang/include/absl/status/status.ho:n67s:
tIn file included from  /usr/local/clang/include/absl/status/internal/status_internal.h&:,29
:
      In file included from | /usr/local/clang/include/absl/strings/cord.h  ^:
94:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::51131::
52/usr/local/clang/include/absl/synchronization/mutex.h:: 801:note: 45expanded from macro 'ABSL_INTERNAL_X':
 warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]  
511 |      801  |      C o n dAiBtSiLo_nI(NbToEoRNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #definle  (A*BaSbLs_lI_NnToEnRnNuAlLl_ IfFu_ntcr)u(ev(oiifd_*s aatbisslf_ineudl,l a.b.i.l)i tiyf__usnaktnioswfni)e,d

            | |                                             ^        ^

/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | In file included from #s2/s2text_format.ccd:e16f:
iIn file included from n../src/s2/s2text_format.he: 34a:
bIn file included from s../src/s2/mutable_s2shape_index.hl:_30n:
uIn file included from l/usr/local/clang/include/absl/container/btree_map.hl:a67b:
i/usr/local/clang/include/absl/container/internal/btree_container.hl:i561t:y3_:u nwarning: k'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
own _  N561u | l l _AuBnSsLp_eIcNiTfEiReNdA
L      _| X                                 ^(
insert_or_assign, inIn file included from ss2/s2wedge_relations.cce:r18t:
_In file included from o../src/s2/s2wedge_relations.hr:_24a:
sIn file included from s../src/s2/s2point.hi:g27n:
_In file included from h../src/s2/s2coder.hi:n23t:
_In file included from i/usr/local/clang/include/absl/status/status.hm:p67l:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hc:o29n:
sIn file included from t/usr/local/clang/include/absl/strings/cord.h :&94,:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~31
:
/usr/local/clang/include/absl/synchronization/mutex.h  :562802 | : 19 :   warning:  type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension] 
      802  |               c o n s t  v&o,i dt*r uaeb,s lf_anluslel,a
b      i| l                  ~~~~~~~~~~~~~~~~~~~~~i
ty_  u563n | k n o w n   a r g ) ; 
        |                    ^ 
  /usr/local/clang/include/absl/base/nullability.h :c289o:n34s:t _note: iexpanded from macro 'absl_nullability_unknown't
er  a289t | o#rd(ehfiinnte)  aAbBsSlL__nIuNlTlEaRbNiAlLi_tCyO_MuMnAk)n;o
w      n|                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
Nul/usr/local/clang/include/absl/container/internal/btree_container.hl:_509u:n47s:p enote: cexpanded from macro 'ABSL_INTERNAL_X'i
fie  d509
 |        |                                   ^ 
       ABSL_INTERNAL_ATTRIBUTE_CAIn file included from Ps2/s2wedge_relations.ccT:U18R:
EIn file included from D../src/s2/s2wedge_relations.h_:B24Y:
(In file included from t../src/s2/s2point.hh:i27s:
)In file included from )../src/s2/s2coder.h,: 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94 :
 In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h :\814
:      20| :                                              ^~~~ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  814/usr/local/clang/include/absl/container/internal/btree_container.h | : 561 :C3o:n dwarning: ipassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]t
i/usr/local/clang/include/absl/container/internal/btree_container.ho:n511(:b52o:o lnote:  expanded from macro 'ABSL_INTERNAL_X'(
*ab  s511l | _ n o n n u l l   f uAnBcS)L(_TI*N TaEbRsNlA_Ln_uAlTlTaRbIiBlUiTtEy__CuAnPkTnUoRwEnD)_,B
Y      (| t                   ^h
is/usr/local/clang/include/absl/base/nullability.h):)241): 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n\o
n      n| u                                                   ^l
l /usr/local/clang/include/absl/container/internal/common.h_:N32o:n9n:u lnote: lmacro 'ABSL_INTERNAL_IF_false' defined here

      |                      ^   
32 | #defiIn file included from ns2/s2wedge_relations.cce: 18A:
BIn file included from S../src/s2/s2wedge_relations.hL:_24I:
NIn file included from T../src/s2/s2point.hE:R27N:
AIn file included from L../src/s2/s2coder.h_:I23F:
_In file included from f/usr/local/clang/include/absl/status/status.ha:l67s:
eIn file included from (/usr/local/clang/include/absl/status/internal/status_internal.hi:f29_:
sIn file included from a/usr/local/clang/include/absl/strings/cord.ht:i94s:
fIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.he:d31,:
 /usr/local/clang/include/absl/synchronization/mutex.h.:.814.:)42 :_ _warning: Vtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]A
_AR  G814S | _ _ 
C      o| n        ^d
ition(bool (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:815:16: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  815 |             T* absl_nullability_unknown arg);
      |                ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2text_format.cc289::1634:
:In file included from  ../src/s2/s2text_format.h:note: 34expanded from macro 'absl_nullability_unknown':

In file included from ../src/s2/mutable_s2shape_index.h:  30289:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e67f:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:e564 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ulla  b564i | l i tAyB_SuLn_kInNoTwEnR N_ANLu_lXl(_iunnssepretc_iofri_eads
s      i| g                                 ^n
, insert_or_assign_hint_iIn file included from ms2/s2wedge_relations.ccp:l18,:
 In file included from c../src/s2/s2wedge_relations.ho:n24s:
tIn file included from  ../src/s2/s2point.h&:,27
:
      In file included from | ../src/s2/s2coder.h  ^:
23:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/status.h::50967::
52In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/strings/cord.h:94:
In file included from   /usr/local/clang/include/absl/strings/internal/cordz_info.h509: | 31 :
 /usr/local/clang/include/absl/synchronization/mutex.h : 830 : 14 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]A
B  S830L | _ I N T E R NbAoLo_lA T(T*RaIbBsUlT_En_oCnAnPuTlUlR EfDu_nBcY)((tTh*i sa)b)s,l _ n u l l a b i l i t y _ u n k n o w n )   \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |        , 
      In file included from | s2/s2winding_operation.cc             ^:
19:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2winding_operation.h::24123::
22In file included from :../src/s2/s2builder.h :31note: :
expanded from macro 'absl_nonnull'In file included from 
/usr/local/clang/include/absl/container/flat_hash_set.h:43  :
241In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h#:d19e:
fIn file included from i/usr/local/clang/include/absl/container/internal/hash_function_defaults.hn:e59 :
a/usr/local/clang/include/absl/strings/cord.hb:s1140l:_49n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll _ N1140o | n n u l l 
        |                       ^ 
        In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
 In file included from  ../src/s2/s2point.h : 27 :
CIn file included from o../src/s2/s2coder.hr:d23R:
eIn file included from p/usr/local/clang/include/absl/status/status.hE:x67t:
eIn file included from r/usr/local/clang/include/absl/status/internal/status_internal.hn:a29l:
*In file included from  /usr/local/clang/include/absl/strings/cord.ha:b94s:
lIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hn:o31n:
n/usr/local/clang/include/absl/synchronization/mutex.hu:l830l: 36r:e pwarning: )type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension];

      |                                                 ^  
830 |  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :b onote: oexpanded from macro 'absl_nonnull'l
 (  *241a | b#sdle_fnionnen ualbls lf_unnocn)n(uTl*l  a_bNsoln_nnuullll
a      b| i                     ^l
ity_unknown),
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  In file included from 289s2/s2winding_operation.cc | :#19d:
eIn file included from f../src/s2/s2winding_operation.hi:n23e:
 In file included from a../src/s2/s2builder.hb:s31l:
_In file included from n/usr/local/clang/include/absl/container/flat_hash_set.hu:l43l:
aIn file included from b/usr/local/clang/include/absl/container/hash_container_defaults.hi:l19i:
tIn file included from y/usr/local/clang/include/absl/container/internal/hash_function_defaults.h_:u59n:
k/usr/local/clang/include/absl/strings/cord.hn:o1146w:n10 :_ Nwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
l_u n1146s | pCeocridfRieepd*
       a| b                                 ^s
l_nonnull NewExternalRep(absIn file included from ls2/s2wedge_relations.cc:::18s:
tIn file included from r../src/s2/s2wedge_relations.hi:n24g:
_In file included from v../src/s2/s2point.hi:e27w:
 In file included from d../src/s2/s2coder.ha:t23a:
,In file included from 
/usr/local/clang/include/absl/status/status.h      :| 67         ^:

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/base/nullability.h29::
241In file included from :/usr/local/clang/include/absl/strings/cord.h22::94 :
In file included from note: /usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull':
31:
  /usr/local/clang/include/absl/synchronization/mutex.h241: | 831#:d46e:f iwarning: ntype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]e
 abs  l831_ | n o n n u l lt y_pNeonnanmuel la
b      s| l                     ^:
:type_identity<T>::type* absl_nullability_unknown
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:In file included from 59s2/s2wedge_relations.cc:
:18/usr/local/clang/include/absl/strings/cord.h:
:In file included from 1159../src/s2/s2wedge_relations.h::1724::
 In file included from ../src/s2/s2point.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]27
:
In file included from ../src/s2/s2coder.h:23 :
1159In file included from  | /usr/local/clang/include/absl/status/status.hi:n67l:
iIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.he: 29C:
oIn file included from r/usr/local/clang/include/absl/strings/cord.hd:R94e:
pIn file included from */usr/local/clang/include/absl/strings/internal/cordz_info.h :a31b:
s/usr/local/clang/include/absl/synchronization/mutex.hl:_844n:o10n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
 Ne  w844E | x t e r n a lTR*e pa(b
s      l| _                ^n
onn/usr/local/clang/include/absl/base/nullability.hu:l241l: 22o:b jnote: eexpanded from macro 'absl_nonnull'c
t,  
241       | | #         ^d
ef/usr/local/clang/include/absl/base/nullability.hi:n241e: 22a:b snote: lexpanded from macro 'absl_nonnull'_
no  n241n | u#ldle f_iNnoen naublsll
_      n| o                     ^n
null _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:845:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  845 |       bool (absl::type_identity<T>::type::* absl_nonnull method)());
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:850:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  850 |       cIn file included from os2/s2winding_operation.ccn:s19t:
 In file included from T../src/s2/s2winding_operation.h*: 23a:
bIn file included from s../src/s2/s2builder.hl:_31n:
oIn file included from n/usr/local/clang/include/absl/container/flat_hash_set.hn:u43l:
lIn file included from  /usr/local/clang/include/absl/container/hash_container_defaults.ho:b19j:
eIn file included from c/usr/local/clang/include/absl/container/internal/hash_function_defaults.ht:,59
:
      | /usr/local/clang/include/absl/strings/cord.h               ^:
1183:47/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:
 note: expanded from macro 'absl_nonnull'
 1183   | 241  |  # d e f i n e   a b s l _ n o n n u l l   _ N o n n u l l 
        |                       ^ 
  CordRep* absl_nulIn file included from ls2/s2wedge_relations.cca:b18l:
eIn file included from  ../src/s2/s2wedge_relations.hr:e24p:
)In file included from 
../src/s2/s2point.h      :| 27                                              ^:

In file included from ../src/s2/s2coder.h:23/usr/local/clang/include/absl/base/nullability.h:
:In file included from 257/usr/local/clang/include/absl/status/status.h::2367::
 In file included from /usr/local/clang/include/absl/status/internal/status_internal.hnote: :expanded from macro 'absl_nullable'29
:
In file included from /usr/local/clang/include/absl/strings/cord.h  :25794 | :
#In file included from d/usr/local/clang/include/absl/strings/internal/cordz_info.he:f31i:
n/usr/local/clang/include/absl/synchronization/mutex.he: 851a:b45s:l _warning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
lla  b851l | e   _ N u l lbaobolle 
(      a| bs                      ^l
::type_identity<T>::type::* absl_nonnull method)()
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:855:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  855 |   explicit Condition(const bool* absl_nonnull cond);
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:886:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  886 |   explicit Condition(const T* absl_nonnull obj)
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _In file included from Ns2/s2winding_operation.cco:n19n:
uIn file included from l../src/s2/s2winding_operation.hl:
23      :
| In file included from                      ^../src/s2/s2builder.h
:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | in  ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |   line void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:896:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  896 |   explicit Condition(const T* absl_nonnIn file included from us2/s2winding_operation.ccl:l19 :
oIn file included from b../src/s2/s2winding_operation.hj:)23
:
      In file included from | ../src/s2/s2builder.h                              ^:
31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h/usr/local/clang/include/absl/base/nullability.h::43241:
:In file included from 22/usr/local/clang/include/absl/container/hash_container_defaults.h:: 19:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/hash_function_defaults.h
:59:
  241/usr/local/clang/include/absl/strings/cord.h | :#1230d:e20f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
absl _1230n | oinnnluilnle  _cNoonnsntu lclh
a      r| *                     ^ 
absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2wedge_relations.cc257::1823:
:In file included from  ../src/s2/s2wedge_relations.h:note: 24expanded from macro 'absl_nullable':

In file included from ../src/s2/s2point.h:  27257:
 | In file included from #../src/s2/s2coder.hd:e23f:
iIn file included from n/usr/local/clang/include/absl/status/status.he: 67a:
bIn file included from s/usr/local/clang/include/absl/status/internal/status_internal.hl:_29n:
uIn file included from l/usr/local/clang/include/absl/strings/cord.hl:a94b:
lIn file included from e/usr/local/clang/include/absl/strings/internal/cordz_info.h :_31N:
us2/util/math/exactfloat/exactfloat.cc/usr/local/clang/include/absl/synchronization/mutex.hl::l144922a:b:3l48:e: 
       warning: | warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]                      ^type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]


    922144 |  |     sSt2a_tCiHcE CbKo_oElQ (GBuNa_rbann2tleeebdiEnqpuaadl((bcno,n srte iCnotnIn file included from eds2/s2winding_operation.ccri:pt19ri:
eoIn file included from tn../src/s2/s2winding_operation.h_*:c 23aa:
sbIn file included from ts../src/s2/s2builder.h<l:u_31nn:
suIn file included from il/usr/local/clang/include/absl/container/flat_hash_set.hgl:na43eb:
dlIn file included from  ec/usr/local/clang/include/absl/container/hash_container_defaults.h h:aa19,r:

*In file included from       >/usr/local/clang/include/absl/container/internal/hash_function_defaults.h| (:                                               ^&59
r:
)/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/strings/cord.h,::
2571234      ::| 2320  ^::
  note: warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nullable':

36:21  : 257 1234 |  | note: #iexpanded from macro 'S2_CHECK_EQ'dn
elfi   in36ne | e # cdaoebnfssiltn_ enc uhSla2lr_a*Cb HalEbeCs Kl___NEnuQol nlCnaHubEllCleK 
_C      Eo| Qr                      ^
d
      :| :                    ^I
nli/usr/local/clang/include/absl/log/check.hn:e118In file included from R:es2/s2wedge_relations.cc3p::::18 a:
note: sIn file included from expanded from macro 'CHECK_EQ'_../src/s2/s2wedge_relations.h
c:h24a:
  rIn file included from s118(../src/s2/s2point.h | ):  27 c:
AoIn file included from Bn../src/s2/s2coder.hSs:Lt23_ :
L{In file included from O
/usr/local/clang/include/absl/status/status.hG      :_| 67I                   ^:
N
In file included from T/usr/local/clang/include/absl/status/internal/status_internal.hE:/usr/local/clang/include/absl/base/nullability.hR29:N:
In file included from 241A/usr/local/clang/include/absl/strings/cord.h:L:22_94:C:
 HIn file included from note: E/usr/local/clang/include/absl/strings/internal/cordz_info.hexpanded from macro 'absl_nonnull'C:
K31_:
  E/usr/local/clang/include/absl/synchronization/mutex.h241Q: | _#923Id:Me48Pf:Li (nwarning: (etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]v 
aalb1  s)l923,_ |  n # ovn an l u1l , l   ( _vN a oln 2n ) u,l  l #
 v       a | l                     ^ 2 
) 
        |    ^ 
  /usr/local/clang/include/absl/log/internal/check_impl.h : 49c:o3n:s tnote:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'C
ond   i49t | i o nA*B SaLb_sLlO_Gn_uIlNlTaEbRlNeA Lb_)C;H
E      C| K                                               ^_
OP/usr/local/clang/include/absl/base/nullability.hIn file included from (:s2/s2winding_operation.ccC257:h:19e23:
c:In file included from k ../src/s2/s2winding_operation.h_:note: E23expanded from macro 'absl_nullable'Q:

,In file included from  ../src/s2/s2builder.h  =:257=31 | ,:
# In file included from dv/usr/local/clang/include/absl/container/flat_hash_set.hea:fl43i1:
n,eIn file included from   /usr/local/clang/include/absl/container/hash_container_defaults.hva:ab19ls:
1lIn file included from __/usr/local/clang/include/absl/container/internal/hash_function_defaults.htn:eu59xl:
tl/usr/local/clang/include/absl/strings/cord.h,a: b1239vl:ae38l :2_ ,Nwarning:  utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]vl
alla2b _l1239te | e
ixn      tl| )i                      ^
n
e       | a  ^b
sl:/usr/local/clang/include/absl/log/internal/check_op.h::c68o:r22d:_ inote: nexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP't
ern   a68l | : : CwohridlRee p(*c oanbssIn file included from tls2/s2wedge_relations.cc_ n:ocn18hn:
auIn file included from lrl../src/s2/s2wedge_relations.h* :C o24ar:
bdIn file included from s:../src/s2/s2point.hl::_I27nn:
ulIn file included from li../src/s2/s2coder.hln:eaR23be:
lpIn file included from e:/usr/local/clang/include/absl/status/status.h ::aa67sb_:
stIn file included from rle/usr/local/clang/include/absl/status/internal/status_internal.h_e:l(29o):
g
In file included from _      /usr/local/clang/include/absl/strings/cord.hi| :n                                     ^94t
:
eIn file included from r/usr/local/clang/include/absl/strings/internal/cordz_info.h/usr/local/clang/include/absl/base/nullability.hn::a31241l:
:_22c/usr/local/clang/include/absl/synchronization/mutex.h:h: e948note: c:expanded from macro 'absl_nonnull'k10
_:o   p241warning: _ | type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r#
edseu  fl948it | n  e    ba bo so ll _  (n o* na bn\us
lll       __| Nn                     ^oun
nlulla/usr/local/clang/include/absl/base/nullability.hlb:
l257      e:|                       ^23e
v:a lnote: _expanded from macro 'absl_nullable')
(c  o257n | s#td eCfoinndei taibosnl*_ naublslla_bnloen n_uNlull)l a=b lneu
l      l| pIn file included from                       ^ts2/s2winding_operation.cc
r:;19
:
      In file included from | ../src/s2/s2winding_operation.h         ^:
23:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2builder.h::25731::
23In file included from :/usr/local/clang/include/absl/container/flat_hash_set.h :43note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/container/hash_container_defaults.h:19  :
257In file included from  | /usr/local/clang/include/absl/container/internal/hash_function_defaults.h#:d59e:
f/usr/local/clang/include/absl/strings/cord.hi:n1245e: 38a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
null a1245b | lien l_iNnuel laabbslle:
:      c| o                      ^r
d_inteIn file included from rs2/s2wedge_relations.ccn:a18l:
:In file included from :../src/s2/s2wedge_relations.hC:o24r:
dIn file included from R../src/s2/s2point.he:p27*:
 In file included from a../src/s2/s2coder.hb:s23l:
_In file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
aIn file included from b/usr/local/clang/include/absl/status/internal/status_internal.hl:e29 :
CIn file included from o/usr/local/clang/include/absl/strings/cord.hr:d94::
:In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hn:l31i:
n/usr/local/clang/include/absl/synchronization/mutex.he:R948e:p48::: twarning: rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
e()  
948       | |                                       ^ 
bo/usr/local/clang/include/absl/base/nullability.ho:l257 :(23*:a bnote: sexpanded from macro 'absl_nullable'l
_n  u257l | l#adbelfei neev aalb_s)l(_cnounlslta bCloen d_iNtuilolna*b laeb
s      l| _                      ^n
onnull) = nullptr;
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2winding_operation.cc67::
19In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2winding_operation.h29::
23In file included from :
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/s2builder.h94::
31In file included from :
/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from :/usr/local/clang/include/absl/container/flat_hash_set.h31::
43:
/usr/local/clang/include/absl/synchronization/mutex.hIn file included from :/usr/local/clang/include/absl/container/hash_container_defaults.h951::199:
:In file included from  /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:warning: 59type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]:

/usr/local/clang/include/absl/strings/cord.h:1258  :95136 | :   warning: vtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
id*  1258a | bisnll_innuel lcaobrlde_ ianrtge_r n=a ln:u:lCloprtdrR;e
p      F| l        ^a
t*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: oexpanded from macro 'absl_nullable'n
nu  l257l | 
#      d| e                                   ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'u
ll  a241b | l#ed e_fNiunlel aabblsel
_      n| o                      ^n
null _NonnulIn file included from ls2/s2wedge_relations.cc
:      18| :
                     ^In file included from 
../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from  /usr/local/clang/include/absl/status/status.h: 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
AIn file included from B/usr/local/clang/include/absl/strings/cord.hS:L94_:
IIn file included from N/usr/local/clang/include/absl/strings/internal/cordz_info.hT:E31R:
N/usr/local/clang/include/absl/synchronization/mutex.hA:L954_:A52T:T Rwarning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]B
UTE  _954C | A P TsUtRaEtDi_cB Yb(otohli sC)a)l)l V o i d P t r F u n c t i o n ( c o n s t   C \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2shapeutil_contains_brute_force.cc:20:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::striIn file included from ns2/s2text_format.ccg:*16 :
aIn file included from b../src/s2/s2text_format.hs:l34_:
nIn file included from o../src/s2/mutable_s2shape_index.hn:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h :e67r:
r/usr/local/clang/include/absl/container/internal/btree_container.ho:r570):;3
:       | warning:                                                        ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/base/nullability.h  :570241 | : 22 :A Bnote: Sexpanded from macro 'absl_nonnull'L
_I  N241T | E#RdNeAfLi_nXe( ianbsselr_tn_oonrn_ualsls i_gNno,n niunlsle
r      t| _                     ^o
r_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),In file included from  s2/s2shapeutil_contains_brute_force.cc : 20 :
 In file included from  ../src/s2/s2edge_crosser.h : 23 :
 In file included from  ../src/s2/s2edge_crossings.h : 47 :
 In file included from  ../src/s2/s2predicates.h : 55 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 40 :
\/usr/local/clang/include/absl/flags/commandlineflag.h
:      193| :                                                   ^27
: /usr/local/clang/include/absl/container/internal/common.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]32
:9:   note: 193macro 'ABSL_INTERNAL_IF_false' defined here | 
  v   i32r | t#udaelf ivnoei dA BRSeLa_dI(NvToEiRdN*A La_bIsFl__fnaolnsneu(lilf _dssatt)i scfoinesdt,  =. .0.;)
       _| _                          ^V
A_A/usr/local/clang/include/absl/base/nullability.hR:G241S:_22_:
       note: | expanded from macro 'absl_nonnull'        ^

  241 | #defineIn file included from  s2/s2text_format.cca:b16s:
lIn file included from _../src/s2/s2text_format.hn:o34n:
nIn file included from u../src/s2/mutable_s2shape_index.hl:l30 :
_In file included from N/usr/local/clang/include/absl/container/btree_map.ho:n67n:
u/usr/local/clang/include/absl/container/internal/btree_container.hl:l570
:      3| :                     ^ 
warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59s2/util/math/exactfloat/exactfloat.cc:
:144/usr/local/clang/include/absl/strings/cord.h::31268:: 51:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:36 :126821 | :i nnote: lexpanded from macro 'S2_CHECK_EQ'i
ne    v36o | i#dd eCfoirnde: :SI2n_lCiHnEeCRKe_pE:Q: ECmHpElCaKc_eETQr
e      e| (                    ^C
ord/usr/local/clang/include/absl/log/check.hR:e118p:*3 :a bnote: sexpanded from macro 'CHECK_EQ'l
_no  n118n | u ll  oArnBedSipL,t_
iLo      On| G*                                                  ^ _a
IbNsT/usr/local/clang/include/absl/base/nullability.hlE_:Rn241No:An22Ln:_u Clnote: Hlexpanded from macro 'absl_nonnull'E 
CcK  )_;241E
 | Q#      _d| Ie                                                   ^Mf
PiLn(/usr/local/clang/include/absl/base/nullability.he( :va241ab:ls221l:)_ ,nnote:  oexpanded from macro 'absl_nonnull'#n
vnau  ll2411l | , # d_(eNvfoainlnn2eu)l ,la 
b#s      vl| a                     ^_ln
2o)n
n      u| l  ^l
 _N/usr/local/clang/include/absl/log/internal/check_impl.ho:n49n:u3l:l 
      note: | expanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'                     ^

   49 |   ABSL_LOG_INTERNAL_CIn file included from Hs2/s2wedge_relations.ccE:C18K:
_In file included from O../src/s2/s2wedge_relations.hP:(24C:
hIn file included from e../src/s2/s2point.hc:k27_:
EIn file included from Q../src/s2/s2coder.h,: 23=:
=In file included from ,/usr/local/clang/include/absl/status/status.h :v67a:
lIn file included from 1/usr/local/clang/include/absl/status/internal/status_internal.h,: 29v:
aIn file included from l/usr/local/clang/include/absl/strings/cord.hIn file included from 1:s2/s2winding_operation.cc_94:t:
19eIn file included from :
x/usr/local/clang/include/absl/strings/internal/cordz_info.hIn file included from t:../src/s2/s2winding_operation.h,31: :
23v:
/usr/local/clang/include/absl/synchronization/mutex.haIn file included from :l../src/s2/s2builder.h9562::,3152 :
:vIn file included from  a/usr/local/clang/include/absl/container/flat_hash_set.hwarning: l:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]243
_:
tIn file included from e/usr/local/clang/include/absl/container/hash_container_defaults.h  x:956t19 | ):
 
In file included from        /usr/local/clang/include/absl/container/internal/hash_function_defaults.hs| :t  ^59a
:
t/usr/local/clang/include/absl/strings/cord.hi:/usr/local/clang/include/absl/log/internal/check_op.hc1275 :b51:o:75o :lwarning: 61 type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:C
 anote: sexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP't 
A1275n | di   nCl75ai | nl le  FAuvBonSciLdt_i LCoOnoGr(_cdI:oN:nTIsEntR lNiCAnoeLRn_deCipH:tE:iCEoKmn(p*:l :aaacbbesslTlr_:en:eoi(nmCnpuolrlidlcR eipct)*_ ;ca
ab      ss| t                                                   ^l<_
cno/usr/local/clang/include/absl/base/nullability.hon:nsn241tu: l22cl: hr aenote: rpexpanded from macro 'absl_nonnull'*,

         a| 241b                                                  ^ | s
#ld_e/usr/local/clang/include/absl/base/nullability.hnf:oi241nn:ne22u :la lbnote: >expanded from macro 'absl_nonnull's(
l _   n241 o |  #n dn\eu
fli      nle|                                                               ^a_b
sNlo_/usr/local/clang/include/absl/base/nullability.hnn:no241un:nlu22ll:l
        _| N                     ^note: o
expanded from macro 'absl_nonnull'n
nu  l241l | 
#      d| e                     ^f
ine abslIn file included from _s2/s2wedge_relations.ccn:o18n:
nIn file included from u../src/s2/s2wedge_relations.hl:l24 :
_In file included from N../src/s2/s2point.ho:n27n:
uIn file included from l../src/s2/s2coder.hl:
23      :
| In file included from                      ^/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:958:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  958 |   static bool CIn file included from as2/s2winding_operation.ccs:t19A:
nIn file included from d../src/s2/s2winding_operation.hC:a23l:
lIn file included from M../src/s2/s2builder.he:t31h:
oIn file included from d/usr/local/clang/include/absl/container/flat_hash_set.h(:c43o:
nIn file included from s/usr/local/clang/include/absl/container/hash_container_defaults.ht: 19C:
oIn file included from n/usr/local/clang/include/absl/container/internal/hash_function_defaults.hd:i59t:
i/usr/local/clang/include/absl/strings/cord.ho:n1282*: 47a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nonn u1282l | li ncl)i;n
e       | v                                                 ^o
id/usr/local/clang/include/absl/base/nullability.h :C241o:r22d:: :note: Iexpanded from macro 'absl_nonnull'n
li  n241e | R#edpe:f:iSneet Tarbesel(_CnoorndnRuelpl*  _aNbosnln_unloln
n      u| l                     ^l
 rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
In file included from s2/s2wedge_relations.cc  :24118 | :
#In file included from d../src/s2/s2wedge_relations.he:f24i:
nIn file included from e../src/s2/s2point.h :a27b:
sIn file included from l../src/s2/s2coder.h_:n23o:
nIn file included from n/usr/local/clang/include/absl/status/status.hu:l67l:
 In file included from _/usr/local/clang/include/absl/status/internal/status_internal.hN:o29n:
nIn file included from u/usr/local/clang/include/absl/strings/cord.hl:l94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                     ^:
31:
/usr/local/clang/include/absl/synchronization/mutex.h:961:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  961 |   static bool CallByRef(const T* absl_nonnull self) {
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: In file included from note: s2/s2winding_operation.ccexpanded from macro 'absl_nonnull':
19:
In file included from   ../src/s2/s2winding_operation.h241: | 23#In file included from :
ds2/s2shapeutil_contains_brute_force.ccIn file included from e:../src/s2/s2builder.hf20:i:
31nIn file included from :
e../src/s2/s2edge_crosser.hIn file included from  :/usr/local/clang/include/absl/container/flat_hash_set.ha23:b:
43sIn file included from :
l../src/s2/s2edge_crossings.hIn file included from _:/usr/local/clang/include/absl/container/hash_container_defaults.hn47:o:
19nIn file included from :
n../src/s2/s2predicates.hIn file included from u:l/usr/local/clang/include/absl/container/internal/hash_function_defaults.h55l: :
59_In file included from :
N/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/flags/flag.ho::n129042n:u:
54lIn file included from :l/usr/local/clang/include/absl/flags/internal/flag.h 
:warning:       30type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]| :

                     ^/usr/local/clang/include/absl/base/call_once.h
: 521290: | 24i:n lwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]n
e vo   i52d |  sCtodr:d::a:tIoIn file included from nms2/s2wedge_relations.ccli:ci18n<:
euIn file included from Ri../src/s2/s2wedge_relations.hen:tp24:3:
:2In file included from S_../src/s2/s2point.het:t>27T*:
r In file included from ea../src/s2/s2coder.heb:Os23rl:
E_In file included from mn/usr/local/clang/include/absl/status/status.hpo:tn67yn:
(uIn file included from Cl/usr/local/clang/include/absl/status/internal/status_internal.hol:r 29dC:
RoIn file included from en/usr/local/clang/include/absl/strings/cord.hpt:r*94 o:
alIn file included from bW/usr/local/clang/include/absl/strings/internal/cordz_info.hso:lr31_d:
n/usr/local/clang/include/absl/synchronization/mutex.h(u:l
975l      :a| 31                       ^b:l
 ewarning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r/usr/local/clang/include/absl/base/nullability.h
e:p241,  
:975      22 | |                                                       ^: 
i nnote: /usr/local/clang/include/absl/base/nullability.hlexpanded from macro 'absl_nonnull':i
257n:  e23 241:v |  o#note: idexpanded from macro 'absl_nullable'de
 fR  ien257ae | d# Cdaaelblfsbialnce_k (naTbo*s nlan_bnusullll_ln aob_nlNneuo l_nlN nuculallllalbb
la      ec
| k                     ^      )
|                        ^c
onst {
      In file included from | s2/s2shapeutil_contains_brute_force.cc                              ^:
20:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2edge_crosser.h241::2322:
:In file included from  ../src/s2/s2edge_crossings.hnote: :expanded from macro 'absl_nonnull'47
:
In file included from   ../src/s2/s2predicates.h241: | 55#:
dIn file included from e/usr/local/clang/include/absl/flags/flag.hf:i42n:
eIn file included from  /usr/local/clang/include/absl/flags/internal/flag.ha:b30s:
l/usr/local/clang/include/absl/base/call_once.h_:n53o:n22n:u lwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]   
_572N |    o 53n n | Au Bl Sl L 
_a      Ib| N                     ^sT
ElR:N:AoLn_cXe(_ifnlsaegr*t _aobrs_la_In file included from sns2/s2wedge_relations.ccso:in18gn:
nuIn file included from ,l../src/s2/s2wedge_relations.h l:i 24nf:
slIn file included from ea../src/s2/s2point.hrg:t)27_;:
o
In file included from r      ../src/s2/s2coder.h_| :a                     ^23s
:
sIn file included from /usr/local/clang/include/absl/base/nullability.hi/usr/local/clang/include/absl/status/status.h:g:n24167_::
h22In file included from i:/usr/local/clang/include/absl/status/internal/status_internal.hn :tnote: 29_expanded from macro 'absl_nonnull':
i
In file included from m/usr/local/clang/include/absl/strings/cord.h  :p24194l | :
#,In file included from d /usr/local/clang/include/absl/strings/internal/cordz_info.hce:of31ni:
s/usr/local/clang/include/absl/synchronization/mutex.hnt: e979& :,a43b :s& lwarning: _&type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]n,
o
n        n| 979  ^u | 
 l ls/usr/local/clang/include/absl/container/internal/btree_container.ht :a_509tN:io52cn: n bunote: olexpanded from macro 'ABSL_INTERNAL_X'ol
l
         A| 509l                     ^ | w
 a y s T r u e ( c oAnBsStL _CINTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSLIn file included from _s2/s2shapeutil_contains_brute_force.ccI:N20T:
EIn file included from R../src/s2/s2edge_crosser.hN:A23L:
_IIn file included from F_true(if_sa../src/s2/s2edge_crossings.ht:i47s:
fIn file included from i../src/s2/s2predicates.he:d55,:
 In file included from ./usr/local/clang/include/absl/flags/flag.h.:.42):
 In file included from i/usr/local/clang/include/absl/flags/internal/flag.hf:_30s:
a/usr/local/clang/include/absl/base/call_once.ht:i96s:f33i:e dwarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|         ^
   96 |   friend std::atomic<uiIn file included from ns2/s2text_format.cct:3162:
_In file included from t../src/s2/s2text_format.h>:*34 :
aIn file included from b../src/s2/mutable_s2shape_index.hs:l30_:
nIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl: 572b:a3s:e _warning: i'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]n
ternal  :572: | C o nAtBrSoLl_WIoNrTdE(R
N      A| L                                ^_
X(/usr/local/clang/include/absl/base/nullability.hi:n241s:e22r:t _note: oexpanded from macro 'absl_nonnull'r
_a  s241s | i#gdne,f iinnes earbts_lo_rn_oansnsuilgln __hNionntn_uilmlp
l      ,|                       ^c
onst &, &&In file included from ,s2/s2shapeutil_contains_brute_force.cc
:      20| :
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~In file included from 
../src/s2/s2edge_crosser.h:23:
  In file included from 573../src/s2/s2edge_crossings.h | : 47 :
 In file included from  ../src/s2/s2predicates.h : 55 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.ht:r97u:e18,:  fwarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
se,    97c | o n s t _ i toenrcaet_ofrl(ahgi*n ta)b sAlB_SnLo_nInNuTlElR NfAlLa_gC)O;M
M      A| )                 ^;

      /usr/local/clang/include/absl/base/nullability.h| :                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~241
:22: /usr/local/clang/include/absl/container/internal/btree_container.hnote: :expanded from macro 'absl_nonnull'509
:47:   241note:  | expanded from macro 'ABSL_INTERNAL_X'#
def  i509n | e   a b s l _ n o n nAuBlSlL __INNoTnEnRuNlAlL
_      A| T                     ^T
RIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_In file included from Bs2/s2shapeutil_contains_brute_force.ccY:(20t:
hIn file included from i../src/s2/s2edge_crosser.hs:)23):
)In file included from  ../src/s2/s2edge_crossings.h : 47 :
 In file included from  ../src/s2/s2predicates.h : 55 :
 In file included from  /usr/local/clang/include/absl/flags/flag.h : 42 :
 In file included from  /usr/local/clang/include/absl/flags/internal/flag.h : 30 :
 /usr/local/clang/include/absl/base/call_once.h : 111 : 40\:
       warning: | type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]                                                   ^

/usr/local/clang/include/absl/container/internal/common.h  :11132 | :v9o:i dnote:  macro 'ABSL_INTERNAL_IF_false' defined hereL
owL   e32v | e#ldCeaflilnOen cAeB(SaLb_sIlN:T:EoRnNcAeL__fIlFa_gf*a lasbes(li_fn_osnantuilslf ifelda,g ,. .C.a)l l_a_bVlAe_&A&R GfSn_,_

            | |                                        ^        ^

/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3:o nwarning: dpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
tion  *574  | a b sAlB_SnLu_lIlNaTbElReN)A L{_ Xr(eitnusrenr tt_roure_;a s}s
i      g| n                                          ^,
 inse/usr/local/clang/include/absl/base/nullability.hr:t257_:o23r:_ note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _NuIn file included from ls2/s2shapeutil_contains_brute_force.ccl:a20b:
lIn file included from e../src/s2/s2edge_crosser.h
:      23| :
                      ^In file included from 
../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from In file included from /usr/local/clang/include/absl/flags/internal/flag.hs2/s2winding_operation.cc::3019:
:
/usr/local/clang/include/absl/base/call_once.hIn file included from :../src/s2/s2winding_operation.h153::2341:
:In file included from  ../src/s2/s2builder.hwarning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]31
:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43  :
153In file included from  | /usr/local/clang/include/absl/container/hash_container_defaults.h : 19 :
 In file included from C/usr/local/clang/include/absl/container/internal/hash_function_defaults.ha:l59l:
On/usr/local/clang/include/absl/strings/cord.hc:e1301I:m56p:l (warning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]t
d::a t1301o | miincl<iunien tv3o2i_dt >Cs2/util/math/exactfloat/exactfloat.cc*o: r161ad::b3:s:Il n_warning: lntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]oi
nnenR  ue161pl | :l  : CcSo2om_mnCitHtErTCroKe_leE,(Qc
(oB      nN| s                                        ^_tb
 nC2/usr/local/clang/include/absl/base/nullability.holr:edb241Rie:np22p*aIn file included from : das2/s2wedge_relations.cc (note: bexpanded from macro 'absl_nonnull':bsn
18l,:
  _ nIn file included from 241bu../src/s2/s2wedge_relations.hl | y:tle#24asb.d:
ldeeIn file included from a tf../src/s2/s2point.hioal(d:_n)27,re:
 eb In file included from py,a../src/s2/s2coder.ht
eb:      ss23| .                                                       ^l:
s
i_In file included from z/usr/local/clang/include/absl/base/nullability.hn/usr/local/clang/include/absl/status/status.hoe::n(257)67)n::
,u23In file included from  l:/usr/local/clang/include/absl/status/internal/status_internal.hbl :y 29_note: texpanded from macro 'absl_nullable':
Ne
sIn file included from .o/usr/local/clang/include/absl/strings/cord.hn  s:ize25794( | :
)In file included from #)/usr/local/clang/include/absl/strings/internal/cordz_info.hd;:ne
31uf      :
li| n/usr/local/clang/include/absl/synchronization/mutex.hel  ^: 

1033a      :b| 20../src/s2/base/logging.hs                     ^::l
 36_:warning: n21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u:
l lnote: a expanded from macro 'S2_CHECK_EQ'b1033
l | e     _ 36Nv | uo#lidldea fbWilaneie
t       (S| M2                      ^u_
tCeHxE*C Ka_bEsQlIn file included from  _s2/s2winding_operation.ccCn:Ho19En:
CnIn file included from Ku../src/s2/s2winding_operation.h_l:El23Q :

mIn file included from       u../src/s2/s2builder.h)| :                     ^31{
:

In file included from       /usr/local/clang/include/absl/container/flat_hash_set.h| /usr/local/clang/include/absl/log/check.h:                   ^:43
118:
:In file included from 3/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/hash_container_defaults.h::: 24119:note: :
22expanded from macro 'CHECK_EQ'In file included from :
/usr/local/clang/include/absl/container/internal/hash_function_defaults.h :59note: :
  expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/strings/cord.h118
: | 1302   :241 50 | A:#B dSwarning: eLtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]f_
iLnOe G 1302_a | Ib N sTl E _Rn No An L n_ uC lHl E  C_ K N_ oE nQ n_ uI lMl P 
L       ( | (                      ^v 
a l 1 ) ,   # v a l 1 ,   ( v aClo2r)dIn file included from ,Rs2/s2wedge_relations.cce p:#*18v :
aaIn file included from lb../src/s2/s2wedge_relations.h2s:)l24_
n:
o      In file included from n| n../src/s2/s2point.h  ^u:l
l27 :
/usr/local/clang/include/absl/log/internal/check_impl.hrIn file included from :e../src/s2/s2coder.hp49:,:
233      :
:| In file included from                                                  ^ /usr/local/clang/include/absl/status/status.h
:note: 67/usr/local/clang/include/absl/base/nullability.hexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL':
:
In file included from 241/usr/local/clang/include/absl/status/internal/status_internal.h::   222949::
 |  In file included from  /usr/local/clang/include/absl/strings/cord.hnote:  :expanded from macro 'absl_nonnull'A94
B:
SIn file included from   L/usr/local/clang/include/absl/strings/internal/cordz_info.h241_: | L#31Od:
Ge/usr/local/clang/include/absl/synchronization/mutex.h_f:Ii1050Nn:Te31E :Ra Nbwarning: sAtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]lL_
_nCoHn En1050Cu | Kl _l Ob P_o(oNColh nenWcuakil_tlEW
Qi      ,t|                       ^h=
T=i,m evoault1(,M uvtaelx1*_ taebxstl,_ nvoanln2u,l lv amlu2,_ taebxstl):
:      D| u  ^r
ati/usr/local/clang/include/absl/log/internal/check_op.ho:n68 :t22i:m enote: oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'u
t)    {68
 |        |                                ^w
hi/usr/local/clang/include/absl/base/nullability.hIn file included from l:s2/s2winding_operation.cce241: :19(22:
c:oIn file included from  n../src/s2/s2winding_operation.hnote: s:expanded from macro 'absl_nonnull't23
 :
cIn file included from   h../src/s2/s2builder.h241a: | r31#*:
d eIn file included from af/usr/local/clang/include/absl/container/flat_hash_set.hbi:sn43le:
_ In file included from na/usr/local/clang/include/absl/container/hash_container_defaults.hub:ls19ll:
a_In file included from bn/usr/local/clang/include/absl/container/internal/hash_function_defaults.hlo:en59 n:
au/usr/local/clang/include/absl/strings/cord.hbl:sl1312l :__38lN:oo gnwarning: _ntype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]iu
nltle
 r      1312n|  | a                     ^iln
_lcihneec ka_bospl_:r:ecsourldt_ i n t e rIn file included from  ns2/s2wedge_relations.cc a: l18 ::
 :In file included from  C../src/s2/s2wedge_relations.h\o:
r24d      R:
| eIn file included from                      ^p../src/s2/s2point.h*
 :a27b:
s/usr/local/clang/include/absl/base/nullability.hIn file included from l:_../src/s2/s2coder.h257n:u:l23l23In file included from :
a:bs2/s2shapeutil_contains_brute_force.ccIn file included from  l:/usr/local/clang/include/absl/status/status.hnote: eexpanded from macro 'absl_nullable'20: 
C:
67o  rIn file included from :
257d../src/s2/s2edge_crosser.hIn file included from  | :#:/usr/local/clang/include/absl/status/internal/status_internal.h:dI23:enf:
29liiIn file included from :
nne../src/s2/s2edge_crossings.hIn file included from e R:/usr/local/clang/include/absl/strings/cord.haeb47:ps:
94:l:_In file included from :
cnl../src/s2/s2predicates.hIn file included from ue:/usr/local/clang/include/absl/strings/internal/cordz_info.hlal55:rab:
31(l)In file included from :
e  /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/synchronization/mutex.h{_::
N421069      u:
:| lIn file included from 32                                     ^l/usr/local/clang/include/absl/flags/internal/flag.h:
a: b/usr/local/clang/include/absl/base/nullability.hl30warning: :e:
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]257

/usr/local/clang/include/absl/base/call_once.h:      :23 | 194:1069                      ^:  | 
31note:  expanded from macro 'absl_nullable': 
b   owarning: 257otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] | l
# dWea  fii194tn | Wiei ntalhbiDnselea_ dnlsuitlnldea:(b:Mluaet teo_xmN*iuc <lalubaisbnll_ten
3o      2n| n_                      ^ut
l>l*  maub,s la_bnsoln:n:uTlilm eC odnetardolliWnoer)d ({

s2/util/math/exactfloat/exactfloat.cc            :| | 161                              ^                               ^:

3: /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/nullability.hwarning: ::type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]241241
::2222../src/s2/base/logging.h:::  36note: :note: expanded from macro 'absl_nonnull'21expanded from macro 'absl_nonnull'
:
     note: 241241expanded from macro 'S2_CHECK_EQ' |  | 
##d   ed36fe | if#indIn file included from nees2/s2winding_operation.ccfe :i a19bnsea:
l _bIn file included from Sn2s../src/s2/s2winding_operation.ho_nCl:nHuE_23lClKn:
 __EoIn file included from NQo n../src/s2/s2builder.hnCnHn:uElu31ClKl:

_lIn file included from       E /usr/local/clang/include/absl/container/flat_hash_set.h| Q_:                     ^
N43
      o:
| nIn file included from n                    ^/usr/local/clang/include/absl/container/hash_container_defaults.hu
:l19/usr/local/clang/include/absl/log/check.hl:
:
In file included from 118      /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:| :3                     ^59:
:
 /usr/local/clang/include/absl/strings/cord.hnote: :In file included from expanded from macro 'CHECK_EQ'1321s2/s2wedge_relations.cc
::48In file included from 18  :s2/s2shapeutil_contains_brute_force.cc:
118 :In file included from  | 20warning: ../src/s2/s2wedge_relations.h :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]: In file included from 
24A../src/s2/s2edge_crosser.h:
B:SIn file included from  23L../src/s2/s2point.h1321:
_:L | OIn file included from 27iGn../src/s2/s2edge_crossings.h:
_lI:In file included from iNn47../src/s2/s2coder.hTeE:
: RvIn file included from 23NoA../src/s2/s2predicates.h:
iLd:In file included from _ C55/usr/local/clang/include/absl/status/status.hCHo:
ErCIn file included from dK:/usr/local/clang/include/absl/flags/flag.h_::EIQ42n_l:
IiMIn file included from nPe/usr/local/clang/include/absl/flags/internal/flag.hLR(:e(p30v:a:
:/usr/local/clang/include/absl/base/call_once.hlC1:o)p195,y T:#ovA16arl:r1a ,y(char*warning:  atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]b
sl_   n195(avs | asl i2g )n ,_  h#oivnnatcl_2ei)m_
pf      ll,|    ^ac
go*/usr/local/clang/include/absl/log/internal/check_impl.hn :sa49tb: s3&l:,_  nnote: &oexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_EQ_IMPL'&n
n,u
   l      49l|  |   ^  
 fAl/usr/local/clang/include/absl/container/internal/btree_container.hBa:Sg509L):_ 52L{:O
 G      note: _| expanded from macro 'ABSL_INTERNAL_X'               ^I

NT/usr/local/clang/include/absl/base/nullability.h  E:509R241 | N :A L22 _: C H  Enote:  expanded from macro 'absl_nonnull'C K
 _ O  AP241(BC | ShL#ed_cIekNf_TiEEQnR,eN  aA=Lb=_s,A TvlT_aRlnIo1B,nU TnvEua_llC1lA_P tTe_UNxRtoEn,D n_vBuaYll(2lt
,h       iv| s                     ^a)l
2)_,t e x t ) 
        |    ^ 
  /usr/local/clang/include/absl/log/internal/check_op.h : 75 : 61 :   note:  expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP' 
       \75
 |        |                                                     ^A
BSL/usr/local/clang/include/absl/container/internal/common.h_:L31O:G9_:I Nnote: Tmacro 'ABSL_INTERNAL_IF_true' defined hereE
RN   A31L | _#CdHeEfCiKn(e: :AaBbSsLl_:I:NiTmEpRlNiAcLi_tI_FcIn file included from _as2/s2shapeutil_contains_brute_force.ccts:rt20u<:
ecIn file included from (o../src/s2/s2edge_crosser.hinf:s_23ts :
actIn file included from hia../src/s2/s2edge_crossings.hsrf:*i 47ea:
dbIn file included from ,s../src/s2/s2predicates.hl _:.n.55o.n:
)n In file included from uil/usr/local/clang/include/absl/flags/flag.hfl:_>s42(a:
 t In file included from i /usr/local/clang/include/absl/flags/internal/flag.hs :f i30\e
:
d      
/usr/local/clang/include/absl/base/call_once.h|       :                                                            ^| 200
        ^:
40/usr/local/clang/include/absl/base/nullability.h:: 241warning: :type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]22
: note:   expanded from macro 'absl_nonnull'200
 | v  o241iIn file included from  | ds2/s2text_format.cc# :dL16eo:
fwIn file included from iL../src/s2/s2text_format.hne:ev34 e:
alIn file included from bC../src/s2/mutable_s2shape_index.hsa:ll30_l:
nOIn file included from on/usr/local/clang/include/absl/container/btree_map.hnc:ne67(u:
a/usr/local/clang/include/absl/container/internal/btree_container.hbl:ls574l :::_o3nN:co newarning: n_'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]uf
llalg
*         | 574                     ^a | 
 b sAlB_SnLo_nInNuTlElR NfAlLa_gX,( iCnaslelratb_loer&_&a sfsni,g
n      ,|                                         ^i
nse/usr/local/clang/include/absl/base/nullability.hr:t241_:o22r:_ anote: sexpanded from macro 'absl_nonnull's
ig  n241_ | h#idnetf_iinmep la,b sclo_nnsotn n&u,l l& &_,N
o      n| n  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~u
ll
        575|  |                      ^ 
                 true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
onnull dst) const {
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1088:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1088 |   void EnableDebugLog(const char* absl_nullable name);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1091:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1091 |   bool WaitCommon(Mutex* absl_nonnull mutex,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1093:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1093 |   void Remove(base_internal::PerThreadSynch* absl_nonnull s);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1109:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1109 |   explicit MutexLockMaybe(Mutex* absl_nullable mu)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1117:34: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1117 |   explicit MutexLockMaybe(Mutex* absl_nullable mu, const Condition& cond)
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1132:10: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1132 |   Mutex* absl_nullable const mu_;
      |          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1146:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 1146 |       this)) ABSL_EXCLUSIVE_LOCK_FUNCTION(mu)
      |       ^~~~
/usr/local/clang/include/absl/synchronization/mutex.h:1153:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1153 |   explicit ReleasableMutexLock(Mutex* absl_nonnull mu)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defi/usr/local/clang/include/absl/container/internal/btree_container.hn:e577 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
onnu  l577l |   _ NAoBnSL_InNuTlElR
N      A| L                     ^_
X(insert_or_assign, insert_or_assign_hint_In file included from is2/s2wedge_relations.ccm:p18l:
,In file included from  ../src/s2/s2wedge_relations.h&:&24,:
 In file included from c../src/s2/s2point.ho:n27s:
tIn file included from  ../src/s2/s2coder.h&:,23
:
      In file included from | /usr/local/clang/include/absl/status/status.h  ^:
67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/internal/status_internal.h::50929::
52In file included from :/usr/local/clang/include/absl/strings/cord.h :94note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h  :50931 | :
     /usr/local/clang/include/absl/synchronization/mutex.h : 1158 : 53 :A Bwarning: S'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]L
_INTE R1158N | A L _ A T T RMIuBtUeTxE&_ CmAuP TAUBRSELD__IBNYT(EtRhNiAsL)_)A,T T R I B U T E _ C A P T U R E D _ B Y ( t h i s\)
,      
|                                                          ^| 
                                                    ^~~~
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_/usr/local/clang/include/absl/synchronization/mutex.hf:a1166l:s39e:( iwarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
sati s1166f | i e de,x p.l.i.c)i t_ _RVeAl_eAaRsGaSb_l_e
M      u| t        ^e
xLock(Mutex* absIn file included from ls2/s2text_format.cc_:n16o:
nIn file included from n../src/s2/s2text_format.hu:l34l:
 In file included from m../src/s2/mutable_s2shape_index.hu:,30 :
cIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:s67t:
 /usr/local/clang/include/absl/container/internal/btree_container.hC:o577n:d3i:t iwarning: opassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
& co  n577d | ) 
       A| B                                      ^S
L_/usr/local/clang/include/absl/base/nullability.hI:N241T:E22R:N Anote: Lexpanded from macro 'absl_nonnull'_
X(  i241n | s#edretf_ionre_ aasbssilg_nn,o ninnuslelr t__Noorn_nauslsli
g      n| _                     ^h
int_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSIn file included from Ls2/s2wedge_relations.cc_:I18N:
TIn file included from E../src/s2/s2wedge_relations.hR:N24A:
LIn file included from _../src/s2/s2point.hA:T27T:
RIn file included from I../src/s2/s2coder.hB:U23T:
EIn file included from _/usr/local/clang/include/absl/status/status.hC:A67P:
TIn file included from U/usr/local/clang/include/absl/status/internal/status_internal.hR:E29D:
_In file included from B/usr/local/clang/include/absl/strings/cord.hY:(94t:
hIn file included from i/usr/local/clang/include/absl/strings/internal/cordz_info.hs:)31):
)/usr/local/clang/include/absl/synchronization/mutex.h : 1179 : 10 :   warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
     1179  |      M u t e x *   a\b
s      l| _                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl:a32b:l9e:  mnote: umacro 'ABSL_INTERNAL_IF_false' defined here_
;
         | 32         ^ | 
#d/usr/local/clang/include/absl/base/nullability.he:f257i:n23e:  Anote: Bexpanded from macro 'absl_nullable'S
L_  I257N | T#EdReNfAiLn_eI Fa_bfsall_sneu(lilfa_bslaet i_sNfuilelda,b l.e.
.      )|                        ^_
_VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS_In file included from _s2/s2wedge_relations.cc
:      18| :
        ^In file included from 
../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from In file included from s2/s2text_format.cc/usr/local/clang/include/absl/status/status.h::1667:
:
In file included from In file included from ../src/s2/s2text_format.h/usr/local/clang/include/absl/status/internal/status_internal.h::3429:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h/usr/local/clang/include/absl/strings/cord.h::3094:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h/usr/local/clang/include/absl/strings/internal/cordz_info.h::6731:
:
/usr/local/clang/include/absl/container/internal/btree_container.h:/usr/local/clang/include/absl/synchronization/mutex.h579::12123::52 : warning: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  579  | 1212  |  bAoBoSlL _CIoNnTdEiRtNiAoLn_:X:(CianssteArntd_Coarl_laMsestihgond,( cionnssetr tC_oonrd_iatsisoing*n _ahbisnlt__niomnpnlu,l l& &c,)  c{o
n      s| t                                                   ^ 
&,
/usr/local/clang/include/absl/base/nullability.h      :| 241  ^:
22: /usr/local/clang/include/absl/container/internal/btree_container.h:note: 511expanded from macro 'absl_nonnull':
52:   241note:  | expanded from macro 'ABSL_INTERNAL_X'#
def  i511n | e   a b s l _ n o n nAuBlSlL __INNoTnEnRuNlAlL
_      A| T                     ^T
RIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #defineIn file included from  s2/s2wedge_relations.ccA:B18S:
LIn file included from _../src/s2/s2wedge_relations.hI:N24T:
EIn file included from R../src/s2/s2point.hN:A27L:
_In file included from I../src/s2/s2coder.hF:_23t:
rIn file included from u/usr/local/clang/include/absl/status/status.he:(67i:
fIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hs:a29t:
iIn file included from s/usr/local/clang/include/absl/strings/cord.hf:i94e:
dIn file included from ,/usr/local/clang/include/absl/strings/internal/cordz_info.h :.31.:
./usr/local/clang/include/absl/synchronization/mutex.h): 1221i:f54_:s awarning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
sfie d1221
 |       b| o        ^o
l Condition::CaIn file included from ss2/s2text_format.cct:A16n:
dIn file included from C../src/s2/s2text_format.ha:l34l:
FIn file included from u../src/s2/mutable_s2shape_index.hn:c30t:
iIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:(67c:
o/usr/local/clang/include/absl/container/internal/btree_container.hn:s579t: 3C:o nwarning: d'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]i
tion*   579a | b s lA_BnSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
onnull c) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1230:12: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1230 |     bool (*absl_nonnull f/usr/local/clang/include/absl/container/internal/btree_container.hu:n581c:)3(:T *warning:  passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]a
bsl_  n581u | l l aAbBiSlLi_tIyN_TuEnRkNnAoLw_nX)(,i
n      s| e           ^r
t_o/usr/local/clang/include/absl/base/nullability.hr:_241a:s22s:i gnote: nexpanded from macro 'absl_nonnull',
 i  n241s | e#rdte_foirn_ea sasbisgln__nhoinnntu_lilm p_lN,o n&n&u,l lc
o      n| s                     ^t
 &,
      |   ^
In file included from s2/s2wedge_relations.cc:/usr/local/clang/include/absl/container/internal/btree_container.h18::
509In file included from :../src/s2/s2wedge_relations.h52::24 :
In file included from note: ../src/s2/s2point.hexpanded from macro 'ABSL_INTERNAL_X':
27:
In file included from ../src/s2/s2coder.h:  23509:
 | In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from A/usr/local/clang/include/absl/strings/cord.hB:S94L:
_In file included from I/usr/local/clang/include/absl/strings/internal/cordz_info.hN:T31E:
R/usr/local/clang/include/absl/synchronization/mutex.hN:A1230L:_34A:T Twarning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]I
BUT E1230_ | C A P T UbRoEoDl_ B(Y*(atbhsils_)n)o,n n u l l   f u n c ) ( T *   a b s l _ n u l l a\b
i      l| i                                                   ^t
y_u/usr/local/clang/include/absl/container/internal/common.hn:k31n:o9w:n )note: ,macro 'ABSL_INTERNAL_IF_true' defined here

      |                                  ^   
31 | #/usr/local/clang/include/absl/base/nullability.hd:e289f:i34n:e  note: Aexpanded from macro 'absl_nullability_unknown'B
SL_  I289N | T#EdReNfAiLn_eI Fa_btsrlu_en(uilfl_asbaitliistfyi_eudn,k n.o.w.n)  _iNfu_lsla_tuinssfpieecdi
f      i| e        ^d

      |                                  ^
In file included from s2/s2text_format.cc:16:
In file included from In file included from ../src/s2/s2text_format.hs2/s2wedge_relations.cc::3418:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2wedge_relations.h::3024:
:
In file included from In file included from /usr/local/clang/include/absl/container/btree_map.h../src/s2/s2point.h::6727:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h../src/s2/s2coder.h::58123::
3In file included from :/usr/local/clang/include/absl/status/status.h :67warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]In file included from 
/usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94  :
581In file included from  | /usr/local/clang/include/absl/strings/internal/cordz_info.h : 31A:
B/usr/local/clang/include/absl/synchronization/mutex.hS:L1231_:I8N:T Ewarning: Rtype nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]N
AL_ X1231( | i n s e rTt*_ oarb_sals_sniuglnl,a biinlsietryt__uonrk_naoswsni ganr_gh)i
n      t| _       ^i
mpl,/usr/local/clang/include/absl/base/nullability.h :&289&:,34 :c onote: nexpanded from macro 'absl_nullability_unknown's
t &  ,289
 |       #| d  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~e
fin  e582  | a b s l _ n u l l a b i l i t y _ u ntkrnuoew,n  f_aNluslel,_ ucnosnpsetc_iiftieerda
t      o| r                                 ^(
hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BIn file included from Ys2/s2wedge_relations.cc(:t18h:
iIn file included from s../src/s2/s2wedge_relations.h):)24,:
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 In file included from  /usr/local/clang/include/absl/strings/cord.h : 94\:

In file included from       /usr/local/clang/include/absl/strings/internal/cordz_info.h| :                                              ^~~~31
:
/usr/local/clang/include/absl/synchronization/mutex.h:1241:12: warning: /usr/local/clang/include/absl/container/internal/btree_container.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
581:3:  warning: 1241 | passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] 
 /usr/local/clang/include/absl/container/internal/btree_container.h : 511b:o52o:l  note: (expanded from macro 'ABSL_INTERNAL_X'*
abs  l511_ | n o n n u l l   f u nAcB)S(LT_*I NaTbEsRlN_AnLu_lAlTaTbRiIlBiUtTyE__uCnAkPnToUwRnE)D,_
B      Y| (           ^t
hi/usr/local/clang/include/absl/base/nullability.hs:)241):)22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o\n
n      u| l                                                   ^l
 _/usr/local/clang/include/absl/container/internal/common.hN:o32n:n9u:l lnote: 
macro 'ABSL_INTERNAL_IF_false' defined here      
|                      ^
   32 | #defIn file included from is2/s2wedge_relations.ccn:e18 :
AIn file included from B../src/s2/s2wedge_relations.hS:L24_:
IIn file included from N../src/s2/s2point.hT:E27R:
NIn file included from A../src/s2/s2coder.hL:_23I:
FIn file included from _/usr/local/clang/include/absl/status/status.hf:a67l:
sIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h(:i29f:
_In file included from s/usr/local/clang/include/absl/strings/cord.ha:t94i:
sIn file included from f/usr/local/clang/include/absl/strings/internal/cordz_info.hi:e31d:
,/usr/local/clang/include/absl/synchronization/mutex.h :.1241.:.34):  _warning: _type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]V
A_A R1241G | S _ _ 
       b| o        ^o
l (*absl_nonnull func)(T* absl_nullability_unknown),
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1242:44: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
 1242 |     typename absl::type_identity<T>::type* absl_nullability_unknown
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1249:8: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1249 |     T* absl_nonnull object,
      |        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERN94A:
LIn file included from _/usr/local/clang/include/absl/strings/internal/cordz_info.hIF:_31t:
r/usr/local/clang/include/absl/synchronization/mutex.hu:e1250(:i43f:_ swarning: atype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
isfi e1250d | ,   . . .b)o oilf _(saabtsils:f:iteydp
e      _| i        ^d
entity<T>::type::In file included from *s2/s2text_format.cc :a16b:
sIn file included from l../src/s2/s2text_format.h_:n34o:
nIn file included from n../src/s2/mutable_s2shape_index.hu:l30l:
 In file included from m/usr/local/clang/include/absl/container/btree_map.he:t67h:
o/usr/local/clang/include/absl/container/internal/btree_container.hd:)583(:)3):
       | warning:                                           ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

/usr/local/clang/include/absl/base/nullability.h:241:22:   583 | note:  expanded from macro 'absl_nonnull' 
AB  S241L | _#IdNeTfEiRnNeA La_bXs(li_nnsoenrntu_lolr __aNsosningunl,l 
i      n| s                     ^e
rt_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_itIn file included from es2/s2wedge_relations.ccr:a18t:
oIn file included from r../src/s2/s2wedge_relations.h(:h24i:
nIn file included from t../src/s2/s2point.h): 27A:
BIn file included from S../src/s2/s2coder.hL:_23I:
NIn file included from T/usr/local/clang/include/absl/status/status.hE:RN67A:
LIn file included from _/usr/local/clang/include/absl/status/internal/status_internal.hC:O29M:
MIn file included from A/usr/local/clang/include/absl/strings/cord.h):;94
:
      In file included from | /usr/local/clang/include/absl/strings/internal/cordz_info.h                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:
31:
/usr/local/clang/include/absl/synchronization/mutex.h/usr/local/clang/include/absl/container/internal/btree_container.h::1259509::1447::  warning: note: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]expanded from macro 'ABSL_INTERNAL_X'

   1259509 |  |         c o n s t   TA*B SaLb_sIlN_TnERNoAnLn_uAlTlT RoIbBjUeTcEt_,C
A      P| T             ^U
RED/usr/local/clang/include/absl/base/nullability.h_:B241Y:22(:t hnote: iexpanded from macro 'absl_nonnull's
))  ,241  |  # d e f i n e   a b s l _ n o n n u l l   _ N\o
n      n| u                                              ^~~~l
l
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
In file included from s2/s2wedge_relations.cc  :51118 | :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
 In file included from  ../src/s2/s2point.h : 27 :
AIn file included from B../src/s2/s2coder.hS:L23_:
IIn file included from N/usr/local/clang/include/absl/status/status.hT:E67R:
NIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hL:_29A:
TIn file included from T/usr/local/clang/include/absl/strings/cord.hR:I94B:
UIn file included from T/usr/local/clang/include/absl/strings/internal/cordz_info.hE:_31C:
A/usr/local/clang/include/absl/synchronization/mutex.hP:T1260U:R43E:D _warning: Btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]Y
(th i1260s | ) ) )    b o o l   ( a b s l : : t y p e _ i d e n t i\t
y      <| T                                                   ^>
::/usr/local/clang/include/absl/container/internal/common.ht:y31p:e9::: *note:  macro 'ABSL_INTERNAL_IF_true' defined herea
bsl   _31n | o#ndneufliln em eAtBhSoLd_)I(N)T
E      R| N                                          ^A
L_/usr/local/clang/include/absl/base/nullability.hI:F241_:t22r:u enote: (expanded from macro 'absl_nonnull'i
f_  s241a | t#idseffiiende,  a.b.s.l)_ niofn_nsualtli s_fNioendn
u      l| l        ^

      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_In file included from as2/s2wedge_relations.ccs:s18i:
gIn file included from n../src/s2/s2wedge_relations.h,: 24i:
nIn file included from s../src/s2/s2point.he:r27t:
_In file included from o../src/s2/s2coder.hr:_23a:
sIn file included from s/usr/local/clang/include/absl/status/status.hi:g67n:
_In file included from h/usr/local/clang/include/absl/status/internal/status_internal.hi:n29t:
_In file included from i/usr/local/clang/include/absl/strings/cord.hm:p94l:
,In file included from  /usr/local/clang/include/absl/strings/internal/cordz_info.h&:&31,:
 /usr/local/clang/include/absl/synchronization/mutex.hc:o1279n:s35t:  &warning: ,type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1279 |   v584o | i d   R e g i s t e r M u t e x P r otfriulee,r (tvrouied,  (c*oanbsstl__intoenrnautlolr (fhni)n(ti)n tA6B4S_Lt_ IwNaTiEtR_NcAyLc_lCeOsM)M)A;)
;      
|                                         ^| 
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/base/nullability.h:241/usr/local/clang/include/absl/container/internal/btree_container.h::22511:: 47:note:  expanded from macro 'absl_nonnull'note: 
expanded from macro 'ABSL_INTERNAL_X'
  241 | #  d511e | f i n e   a b s l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lAlT
T      R| I                     ^B
UTE_CAPTURED_BY(this)))               In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
\In file included from 
../src/s2/s2point.h      :| 27                                              ^~~~:

In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1293:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1293 | void RegisterMutexTracer(void (*absl_nonnull fn)(const char* absl_nonnull msg,
      | /usr/local/clang/include/absl/container/internal/btree_container.h                                                             ^:
586:3/usr/local/clang/include/absl/base/nullability.h:: 241:warning: 22passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 note: expanded from macro 'absl_nonnull'
  586   | 241  |  #AdBeSfLi_nIeN TaEbRsNlA_Ln_oXn(niunlsle r_tN_oonrn_ualsls
i      g| n                     ^,
 insert_In file included from os2/s2wedge_relations.ccr:_18a:
sIn file included from s../src/s2/s2wedge_relations.hi:g24n:
_In file included from h../src/s2/s2point.hi:n27t:
_In file included from i../src/s2/s2coder.hm:p23l:
,In file included from  /usr/local/clang/include/absl/status/status.h&:&67,:
 In file included from &/usr/local/clang/include/absl/status/internal/status_internal.h&:,29 :
fIn file included from a/usr/local/clang/include/absl/strings/cord.hl:s94e:
,In file included from 
/usr/local/clang/include/absl/strings/internal/cordz_info.h      :| 31  ^:

/usr/local/clang/include/absl/synchronization/mutex.h:1294/usr/local/clang/include/absl/container/internal/btree_container.h::62509:: 52:warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]note: 
expanded from macro 'ABSL_INTERNAL_X'
 1294   | 509  |                      A B S L _ I N T E R N A L _ A T T R I B U T E _ C A P T U R E D _ B Y ( t hciosn)s)t,  v o i d *   a b s l _ nonnull obj,
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1309:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1309 | void RegisterCondVarTracer(void (*absl_nonnull fn)(
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.h:94:
In file included from /usr/local/clang/include/absl/strings/internal/cordz_info.h:31:
/usr/local/clang/include/absl/synchronization/mutex.h:1310:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1310 |     const char* absl_nonnull msg, const void* absl_nonnull cv));
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
            \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:43:
In file included from /usr/local/clang/include/absl/container/hash_container_defaults.h:19:
In file included from /usr/local/clang/include/absl/container/internal/hash_function_defaults.h:59:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:20:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2shapeutil_contains_brute_force.cc:20:
In file included from ../src/s2/s2edge_crosser.h:23:
In file included from ../src/s2/s2edge_crossings.h:47:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:In file included from 22s2/s2wedge_relations.cc:: 18note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2wedge_relations.h:  24241:
 | In file included from #../src/s2/s2point.hd:e27f:
iIn file included from n../src/s2/s2coder.he: 23a:
bIn file included from s/usr/local/clang/include/absl/status/status.hl:_67n:
oIn file included from n/usr/local/clang/include/absl/status/internal/status_internal.hn:u29l:
l/usr/local/clang/include/absl/strings/cord.h :_109N:o53n:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l

      |                      ^
  109 | void C/usr/local/clang/include/absl/container/internal/btree_container.ho:p590y:C3o:r dwarning: Tpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]o
Stri  n590g | ( c oAnBsStL _CIoNrTdE&R NsArLc_,X (sitnds:e:rstt_roirn_ga*s saibgsnl,_ nionnsneurltl_ odrs_ta)ssig;n
_      h| i                                                    ^n
t_im/usr/local/clang/include/absl/base/nullability.hp:l241,: 22&:& ,note:  expanded from macro 'absl_nonnull'&
&,   241t | r#udee,f
i      n| e  ^ 
ab/usr/local/clang/include/absl/container/internal/btree_container.hs:l509_:n52o:n nnote: uexpanded from macro 'ABSL_INTERNAL_X'l
l _  N509o | n n u l l 
          |                       ^A
BSL_INTERNAL_ATTRIBUTE_CAPTURIn file included from Es2/s2wedge_relations.ccD:_18B:
YIn file included from (../src/s2/s2wedge_relations.ht:h24i:
sIn file included from )../src/s2/s2point.h):,27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29 :
 /usr/local/clang/include/absl/strings/cord.h : 110 : 55 :   warning: \type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

      |                                                    ^
  110 | /usr/local/clang/include/absl/container/internal/common.hv:o31i:d9 :A pnote: pmacro 'ABSL_INTERNAL_IF_true' defined heree
ndC   o31r | d#TdoeSftirnien gA(BcSoLn_sItN TCEoRrNdA&L _sIrFc_,t rsuted(:i:fs_tsraitnigs*f iaebds,l _.n.o.n)n uilfl_ sdastti)s;f
i      e| d                                                      ^

      |         ^/usr/local/clang/include/absl/base/nullability.h
:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define In file included from as2/s2text_format.ccb:s16l:
_In file included from n../src/s2/s2text_format.ho:n34n:
uIn file included from l../src/s2/mutable_s2shape_index.hl: 30_:
NIn file included from o/usr/local/clang/include/absl/container/btree_map.hn:n67u:
l/usr/local/clang/include/absl/container/internal/btree_container.hl:
590      :| 3                     ^:
 warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:425:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   friend void CopyCordToString(const Cord& src, std::string* absl_nonnull dst);
      |                                                              ^
/usr/local/clang/include/absl/base/nullability.hIn file included from :s2/s2text_format.cc241::1622:
:In file included from  ../src/s2/s2text_format.h:note: 34expanded from macro 'absl_nonnull':

In file included from ../src/s2/mutable_s2shape_index.h:  30241:
 | In file included from #/usr/local/clang/include/absl/container/btree_map.hd:e67f:
i/usr/local/clang/include/absl/container/internal/btree_container.hn:e592 :a3b:s lwarning: _passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
onnu  l592l |   _ NAoBnSnLu_lIlN
T      E| R                     ^N
AL_X(insert_or_assign, insert_In file included from os2/s2wedge_relations.ccr:_18a:
sIn file included from s../src/s2/s2wedge_relations.hi:g24n:
_In file included from h../src/s2/s2point.hi:n27t:
_In file included from i../src/s2/s2coder.hm:p23l:
,In file included from  /usr/local/clang/include/absl/status/status.h&:&67,:
 In file included from &/usr/local/clang/include/absl/status/internal/status_internal.h&:,29 :
t/usr/local/clang/include/absl/strings/cord.hr:u437e:,47
:       | warning:   ^
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/container/internal/btree_container.h:509:  52437: |   note:  expanded from macro 'ABSL_INTERNAL_X' 
      509  |                      A B S L _ I N T E R N A L _ AsTtTdR:I:BsUtTrEi_nCgA*P TaUbRsElD__nBoYn(ntuhlils )d)s,t ) ; 
        |                                                ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d\e
f      i| n                                                   ^e
 a/usr/local/clang/include/absl/container/internal/common.hb:s31l:_9n:o nnote: nmacro 'ABSL_INTERNAL_IF_true' defined hereu
ll    _31N | o#ndneufliln
e       | A                     ^B
SL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from In file included from s2/s2wedge_relations.ccs2/s2text_format.cc::1816:
:
In file included from In file included from ../src/s2/s2wedge_relations.h../src/s2/s2text_format.h::2434:
:
In file included from In file included from ../src/s2/s2point.h../src/s2/mutable_s2shape_index.h::2730:
:
In file included from In file included from ../src/s2/s2coder.h/usr/local/clang/include/absl/container/btree_map.h::2367:
:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/status.h::59267::
3In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29warning: :
'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]/usr/local/clang/include/absl/strings/cord.h
:480:39: warning:   type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]592
 |     A480B | S L _ I NuTsEiRnNgA Lp_oXi(nitnesre r=t _coorn_sats sviaglnu,e _itnyspeer*t _aobrs_la_snsoingnnu_lhli;n
t      _| i                                      ^m
pl,/usr/local/clang/include/absl/base/nullability.h :&241&:,22 :& &note: ,expanded from macro 'absl_nonnull' 
tr  u241e | ,#
d      e| f  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i
ne   a593b | s l _ n o n n u l l   _ N o n n u l lt
r      u| e                     ^,
 const_iteratorIn file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:501:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 |     explicit ChunkIterator(cord_internal::CordRep* absl_nonnull tree);
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:504:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  504 |     explicit ChunkIterator(const Cord* absl_nonnull cord);
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:507:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |     void InitTree(cord_internal::CordRep* absl_nonnull tree);
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:525:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  525 |     absl::cord_internal::CordRep* absl_nullable current_leaf_ = nullptr;
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:582:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  582 |     explicit ChunkRange(const Cord* absl_nonnull cord) : cord_(cord) {}
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:588:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  588 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:641:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 |     using pointer = const char* absl_nonnull;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:655:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  655 |     explicit CharIterator(const Cord* absl_nonnull cord)
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^(
hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |   In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24A:
BIn file included from S../src/s2/s2point.hL:_27I:
NIn file included from T../src/s2/s2coder.hE:R23N:
AIn file included from L/usr/local/clang/include/absl/status/status.h_:A67T:
TIn file included from R/usr/local/clang/include/absl/status/internal/status_internal.hI:B29U:
T/usr/local/clang/include/absl/strings/cord.hE:_667C:A44P:T Uwarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]E
D_BY  (667t | h i ss)t)a,t i c   C o r d   A d v a n c e A n d R e a d ( C\h
a      r| I                                              ^~~~t
erator* /usr/local/clang/include/absl/container/internal/btree_container.ha:b592s:l3_:n owarning: npassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]n
ul/usr/local/clang/include/absl/container/internal/btree_container.hl: 511i:t52,:  snote: iexpanded from macro 'ABSL_INTERNAL_X'z
e_t   511n | _ b y t e s ) ; 
        | A                                           ^B
SL/usr/local/clang/include/absl/base/nullability.h_:I241N:T22E:R Nnote: Aexpanded from macro 'absl_nonnull'L
_A  T241T | R#IdBeUfTiEn_eC AaPbTsUlR_EnDo_nBnYu(ltlh i_sN)o)n)n u l l 
        |                       ^ 
                \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9In file included from :s2/s2wedge_relations.cc :18note: :
macro 'ABSL_INTERNAL_IF_true' defined hereIn file included from 
../src/s2/s2wedge_relations.h:24:
   In file included from 31../src/s2/s2point.h | :#27d:
eIn file included from f../src/s2/s2coder.hi:n23e:
 In file included from A/usr/local/clang/include/absl/status/status.hB:S67L:
_In file included from I/usr/local/clang/include/absl/status/internal/status_internal.hN:T29E:
R/usr/local/clang/include/absl/strings/cord.hN:A674L:_37I:F _warning: ttype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]r
ue(i  f674_ | s a tsitsaftiiecd ,v o.i.d. )A divfa_nscaet(iCshfaireIdt
e      r| a        ^t
or* absl_nonnull it, In file included from ss2/s2text_format.cci:z16e:
_In file included from t../src/s2/s2text_format.h :n34_:
bIn file included from y../src/s2/mutable_s2shape_index.ht:e30s:
)In file included from ;/usr/local/clang/include/absl/container/btree_map.h
:      67| :
                                    ^/usr/local/clang/include/absl/container/internal/btree_container.h
:592:/usr/local/clang/include/absl/base/nullability.h3::241 :22warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes] 
note: expanded from macro 'absl_nonnull'
    241592 |  | # d eAfBiSnLe_ IaNbTsElR_NnAoLn_nXu(liln s_eNrotn_nourl_la
s      s| i                     ^g
n, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                  In file included from  s2/s2wedge_relations.cct:r18u:
eIn file included from ,../src/s2/s2wedge_relations.h :c24o:
nIn file included from s../src/s2/s2point.ht:_27i:
tIn file included from e../src/s2/s2coder.hr:a23t:
oIn file included from r/usr/local/clang/include/absl/status/status.h(:h67i:
nIn file included from t/usr/local/clang/include/absl/status/internal/status_internal.h): 29A:
B/usr/local/clang/include/absl/strings/cord.hS:L730_:I36N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_C  O730M | M A ) ; 
e      x| p                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l
ici/usr/local/clang/include/absl/container/internal/btree_container.ht: 511C:h47a:r Rnote: aexpanded from macro 'ABSL_INTERNAL_X'n
ge(  c511o | n s t   C o r d *   aAbBsSlL__nIoNnTnEuRlNlA Lc_oArTdT)R I:B UcToEr_dC_A(PcToUrRdE)D _{B}Y
(      t| h                                   ^i
s)/usr/local/clang/include/absl/base/nullability.h):)241 : 22 :   note:  expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _\n
o      n| n                                              ^~~~u
ll _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:736:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  736 |     const Cord* absl_nonnull cord_;
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSLIn file included from _s2/s2wedge_relations.ccI:N18T:
EIn file included from R../src/s2/s2wedge_relations.hN:A24L:
_In file included from X../src/s2/s2point.h(:F27u:
nIn file included from c../src/s2/s2coder.h,: 23C:
aIn file included from l/usr/local/clang/include/absl/status/status.hl:e67e:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hK:Q29u:
a/usr/local/clang/include/absl/strings/cord.hl:,795 :K43V:a lwarning: utype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
, ..  .795) |      f r i e n d   v o i d   A b s l F o r m\a
t      F| l        ^u
sh(absl::Cord* absl_nonnull cord,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...In file included from )s2/s2wedge_relations.cc :_18_:
VIn file included from A../src/s2/s2wedge_relations.h_:A24R:
GIn file included from S../src/s2/s2point.h_:_27
:
      In file included from | ../src/s2/s2coder.h        ^:
23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:898:27: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  898 |   friend const CordzInfo* absl_nullableIn file included from  s2/s2text_format.ccG:e16t:
CIn file included from o../src/s2/s2text_format.hr:d34z:
IIn file included from n../src/s2/mutable_s2shape_index.hf:o30F:
oIn file included from r/usr/local/clang/include/absl/container/btree_map.hT:e67s:
t/usr/local/clang/include/absl/container/internal/btree_container.hi:n619g:(63
:       | warning:                           ^passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]

/usr/local/clang/include/absl/base/nullability.h:257  :61923 | :   note: Aexpanded from macro 'absl_nullable'B
SL  _257I | N#TdEeRfNiAnLe_ Xa(btsrly__neumlpllaabclee, try_emplace_impl, const &, tru e);
_      N| u                                                              ^l
labl/usr/local/clang/include/absl/container/internal/btree_container.he:
596      :| 9                      ^:
 note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h/usr/local/clang/include/absl/container/internal/btree_container.h::24619:
:In file included from 3../src/s2/s2point.h:: 27:
warning: In file included from passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h  :61967 | :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hA:B29S:
L/usr/local/clang/include/absl/strings/cord.h_:I927N:T43E:R Nwarning: Atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]L
_X(t  r927y | _ e m p l a c e ,   t r y _ e m p l a c e _ i m p l ,   c o n s t  C&o,r dtRreupe*) ;a
b      s| l  ^_
nu/usr/local/clang/include/absl/container/internal/btree_container.hl:l611a:b52l:e  note: rexpanded from macro 'ABSL_INTERNAL_X'e
p);  
611       | |                                            ^ 
   /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :A Bnote: Sexpanded from macro 'absl_nullable'L
_I  N257T | E#RdNeAfLi_nAeT TaRbIsBlU_TnEu_lClAaPbTlUeR E_DN_uBlYl(atbhlies
)      )| ,                      ^ 
                         \
      In file included from | s2/s2wedge_relations.cc                                                   ^:
18:
In file included from ../src/s2/s2wedge_relations.h/usr/local/clang/include/absl/container/internal/common.h::2431:
:In file included from 9../src/s2/s2point.h:: 27:
note: In file included from macro 'ABSL_INTERNAL_IF_true' defined here../src/s2/s2coder.h
:23:
In file included from    /usr/local/clang/include/absl/status/status.h31: | 67#:
dIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hf:i29n:
e/usr/local/clang/include/absl/strings/cord.h :A929B:S26L:_ Iwarning: Ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]T
ERN  A929L | _ I F _ tvrouied( iSfw_aspa(tIinslfiineedR,e p.*. .a)b silf__nsoantniuslfli erdh
s      )| ;        ^

      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2text_format.ccn:e16 :
aIn file included from b../src/s2/s2text_format.hs:l34_:
nIn file included from o../src/s2/mutable_s2shape_index.hn:n30u:
lIn file included from l/usr/local/clang/include/absl/container/btree_map.h :_67N:
o/usr/local/clang/include/absl/container/internal/btree_container.hn:n619u:l3l:
       | warning:                      ^'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]

  619 |   ABSL_INTERNAL_X(tryIn file included from _s2/s2wedge_relations.cce:m18p:
lIn file included from a../src/s2/s2wedge_relations.hc:e24,:
 In file included from t../src/s2/s2point.hr:y27_:
eIn file included from m../src/s2/s2coder.hp:l23a:
cIn file included from e/usr/local/clang/include/absl/status/status.h_:i67m:
pIn file included from l/usr/local/clang/include/absl/status/internal/status_internal.h,: 29c:
o/usr/local/clang/include/absl/strings/cord.hn:s932t: 17&:,  warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
ue)  ;932
 |        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 co/usr/local/clang/include/absl/container/internal/btree_container.hn:s611t: 47c:h anote: rexpanded from macro 'ABSL_INTERNAL_X'*
 abs  l611_ | n u l l a b l e   d aAtBaS(L)_ IcNoTnEsRtN;A
L      _| A                ^T
TR/usr/local/clang/include/absl/base/nullability.hI:B257U:T23E:_ Cnote: Aexpanded from macro 'absl_nullable'P
TU  R257E | D#_dBeYf(itnhei sa)b)s,l _ n u l l a b l e   _ N u l l a b l e 
        |                        ^ 
  \
      |                                               ^~~~
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:934:31: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  934 |     void set_data(const char* absl_nullable data, size_t n);/usr/local/clang/include/absl/container/internal/btree_container.h
:      620| :                              ^59
: /usr/local/clang/include/absl/base/nullability.hwarning: :passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]257
:23:   note: 620expanded from macro 'absl_nullable' | 
    A257B | S#Ld_eIfNiTnEeR NaAbLs_lX_(nturlyl_aebmlpel a_cNeu,l ltarbyl_ee
m      p| l                      ^a
ce_impl, &&, false);In file included from 
s2/s2wedge_relations.cc      :| 18                                                          ^:

In file included from ../src/s2/s2wedge_relations.h:/usr/local/clang/include/absl/container/internal/btree_container.h24::
596In file included from :../src/s2/s2point.h9::27 :
In file included from note: ../src/s2/s2coder.hmacro 'ABSL_INTERNAL_X' defined here:
23:
In file included from /usr/local/clang/include/absl/status/status.h  :59667 | :
#In file included from d/usr/local/clang/include/absl/status/internal/status_internal.he:f29i:
n/usr/local/clang/include/absl/strings/cord.he: 935A:B11S:L _warning: Itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
TERNA  L935_ | X ( F u ncch,a rC*a lalbesel,_ nKoQnunaull,l  KsVeatl_udea,t a.(.s.i)z e _ t   n ) ;     / /   W r i t e   d a t a\ 
t      o|          ^t
he result
      |           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:937:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  937 |     absl::cord_inter/usr/local/clang/include/absl/container/internal/btree_container.hn:a620l::3::C owarning: rpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]d
Rep  *620  | a b sAlB_SnLu_lIlNaTbElReN AtLr_eXe((t)r yc_oenmsptl;a
c      e| ,                                  ^ 
tr/usr/local/clang/include/absl/base/nullability.hy:_257e:m23p:l anote: cexpanded from macro 'absl_nullable'e
_i  m257p | l#,d e&f&i,n ef aalbssel)_;n
u      l| l  ^a
bl/usr/local/clang/include/absl/container/internal/btree_container.he: 611_:N52u:l lnote: aexpanded from macro 'ABSL_INTERNAL_X'b
le
        | 611                      ^ | 
          ABSL_INTEIn file included from Rs2/s2wedge_relations.ccN:A18L:
_In file included from A../src/s2/s2wedge_relations.hT:T24R:
IIn file included from B../src/s2/s2point.hU:T27E:
_In file included from C../src/s2/s2coder.hA:P23T:
UIn file included from R/usr/local/clang/include/absl/status/status.hE:D67_:
BIn file included from Y/usr/local/clang/include/absl/status/internal/status_internal.h(:t29h:
i/usr/local/clang/include/absl/strings/cord.hs:)938):,35 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      938  |          a b s l : : c o r d _ i\n
t      e| r                                                   ^n
al/usr/local/clang/include/absl/container/internal/common.h:::32C:o9r:d Rnote: emacro 'ABSL_INTERNAL_IF_false' defined herep
* a   b32s | l#_dneofninnuel lA BaSsL__tIrNeTeE(R)N AcLo_nIsFt_;f
a      l| s                                  ^e
(i/usr/local/clang/include/absl/base/nullability.hf:_241s:a22t:i snote: fexpanded from macro 'absl_nonnull'i
ed  ,241  | .#.d.e)f i_n_eV Aa_bAsRlG_Sn_o_n
n      u| l        ^l
 _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:939:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  939 |    In file included from  s2/s2text_format.ccc:o16n:
sIn file included from t../src/s2/s2text_format.h :c34h:
aIn file included from r../src/s2/mutable_s2shape_index.h*: 30a:
bIn file included from s/usr/local/clang/include/absl/container/btree_map.hl:_67n:
o/usr/local/clang/include/absl/container/internal/btree_container.hn:n621u:l58l:  awarning: spassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]_
char  s621( | )   cAoBnSsLt_;I
N      T| E                ^R
NAL_/usr/local/clang/include/absl/base/nullability.hX:(241t:r22y:_ enote: mexpanded from macro 'absl_nonnull'p
la  c241e | ,# dterfyi_neem palbascle__niomnpnlu,l l& &_,N otnrnuuel)l;

            | |                      ^                                                         ^

/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNIn file included from As2/s2wedge_relations.ccL:_18X:
(In file included from F../src/s2/s2wedge_relations.hu:n24c:
,In file included from  ../src/s2/s2point.hC:a27l:
lIn file included from e../src/s2/s2coder.he:,23 :
KIn file included from Q/usr/local/clang/include/absl/status/status.hu:a67l:
,In file included from  /usr/local/clang/include/absl/status/internal/status_internal.hK:V29a:
l/usr/local/clang/include/absl/strings/cord.hu:e941,: 35.:. .warning: )type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
      941  |          a b s l : : c o r d _ i\n
t      e| r        ^n
al::CordRep* absl_nullable clear();
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   AIn file included from Bs2/s2wedge_relations.ccS:L18_:
IIn file included from N../src/s2/s2wedge_relations.hT:E24R:
NIn file included from A../src/s2/s2point.hL:_27X:
(In file included from t../src/s2/s2coder.hr:y23_:
eIn file included from m/usr/local/clang/include/absl/status/status.hp:l67a:
cIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.h,: 29t:
r/usr/local/clang/include/absl/strings/cord.hy:_950e:m18p:l awarning: ctype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]e
_imp  l950, |   & & ,  CtorrudeR)e;p
F      l| a  ^t
* /usr/local/clang/include/absl/container/internal/btree_container.ha:b611s:l52_:n onote: nexpanded from macro 'ABSL_INTERNAL_X'n
ull   611M | a k e F l a t W i t hAEBxStLr_aICNaTpEaRcNiAtLy_(AsTiTzReI_BtU TeEx_tCrAaP)T;U
R      E| D                 ^_
BY/usr/local/clang/include/absl/base/nullability.h(:t241h:i22s:) )note: ,expanded from macro 'absl_nonnull' 
     241  |  # d e f i n e   a b s l _ n o n n u l l  \_
N      o| n                                                   ^n
ul/usr/local/clang/include/absl/container/internal/common.hl:
31      :| 9                     ^:
 note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INIn file included from Ts2/s2wedge_relations.ccE:R18N:
AIn file included from L../src/s2/s2wedge_relations.h_:I24F:
_In file included from t../src/s2/s2point.hr:u27e:
(In file included from i../src/s2/s2coder.hf:_23s:
aIn file included from t/usr/local/clang/include/absl/status/status.hi:s67f:
iIn file included from e/usr/local/clang/include/absl/status/internal/status_internal.hd:,29 :
./usr/local/clang/include/absl/strings/cord.h.:.957): 27i:f _warning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
tisf  i957e | d 
        |          ^v
oid SetTree(CordRep* aIn file included from bs2/s2text_format.ccs:l16_:
nIn file included from o../src/s2/s2text_format.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :r30e:
pIn file included from ,/usr/local/clang/include/absl/container/btree_map.h :c67o:
n/usr/local/clang/include/absl/container/internal/btree_container.hs:t621 :C3o:r dwarning: z'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]U
pdate  S621c | o p eA&B SsLc_oIpNeT)E;R
N      A| L                          ^_
X(/usr/local/clang/include/absl/base/nullability.ht:r241y:_22e:m pnote: lexpanded from macro 'absl_nonnull'a
ce  ,241  | t#rdye_feimnpel aacbes_li_mnpoln,n u&l&l,  _tNrounen)u;l
l      
|         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
                     ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           In file included from As2/s2wedge_relations.ccB:S18L:
_In file included from I../src/s2/s2wedge_relations.hN:T24E:
RIn file included from N../src/s2/s2point.hA:L27_:
AIn file included from T../src/s2/s2coder.hT:R23I:
BIn file included from U/usr/local/clang/include/absl/status/status.hT:E67_:
CIn file included from A/usr/local/clang/include/absl/status/internal/status_internal.hP:T29U:
R/usr/local/clang/include/absl/strings/cord.hE:D961_:B34Y:( twarning: htype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]i
s))  ,961  |          v o i d   S e t T r e e O r E m p t y ( C\o
r      d| R                                              ^~~~e
p* absl_nullable rep,
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:968:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  968 |     void EmplaceTree(CordRep* absl_nonnull rep, MethodIdentifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]In file included from 
s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h  :62224 | :
 In file included from  ../src/s2/s2point.hA:B27S:
LIn file included from _../src/s2/s2coder.hI:N23T:
EIn file included from R/usr/local/clang/include/absl/status/status.hN:A67L:
_In file included from X/usr/local/clang/include/absl/status/internal/status_internal.h(:t29r:
y/usr/local/clang/include/absl/strings/cord.h_:e972m:p31l:a cwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension],
 try  _972e | m p l a cveo_ihdi nEtm_pilmapcle,T rceoen(sCto r&d,R efpa*l saeb,s
l      _| n  ^o
nn/usr/local/clang/include/absl/container/internal/btree_container.hu:l611l: 52r:e pnote: ,expanded from macro 'ABSL_INTERNAL_X' 
con  s611t |   I n l i n e D a t aA&B SpLa_rIeNnTtE,R
N      A| L                              ^_
AT/usr/local/clang/include/absl/base/nullability.hT:R241I:B22U:T Enote: _expanded from macro 'absl_nonnull'C
AP  T241U | R#EdDe_fBiYn(et haibss)l)_,n o n n u l l   _ N o n n u l l 
        |                       ^ 
      \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #In file included from ds2/s2wedge_relations.cce:f18i:
nIn file included from e../src/s2/s2wedge_relations.h :A24B:
SIn file included from L../src/s2/s2point.h_:I27N:
TIn file included from E../src/s2/s2coder.hR:N23A:
LIn file included from _/usr/local/clang/include/absl/status/status.hI:F67_:
fIn file included from a/usr/local/clang/include/absl/status/internal/status_internal.hl:s29e:
(/usr/local/clang/include/absl/strings/cord.hi:f978_:s36a:t iwarning: stype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]f
ied  ,978  | . . . )  v_o_iVdA _CAoRmGmSi_t_T
r      e| e        ^(
const CordRep* absl_nullable old_rep,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:979:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  979 |                     CordRep* absl_nonnull rep, const CordzUpdateScope& scope,
      |                              ^In file included from 
s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:/usr/local/clang/include/absl/base/nullability.h34::
241In file included from :../src/s2/mutable_s2shape_index.h22::30 :
In file included from note: /usr/local/clang/include/absl/container/btree_map.h:expanded from macro 'absl_nonnull'67
:
/usr/local/clang/include/absl/container/internal/btree_container.h:  624241: | 3#:d ewarning: fpassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]i
ne a  b624s | l _ nAoBnSnLu_lIlN T_ENRoNnAnLu_lXl(
t      r| y                     ^_
emplace, try_emplace_hint_impl, const &, tIn file included from rs2/s2wedge_relations.ccu:e18,:

In file included from       ../src/s2/s2wedge_relations.h| :  ^24
:
In file included from ../src/s2/s2point.h/usr/local/clang/include/absl/container/internal/btree_container.h::27611:
:In file included from 52../src/s2/s2coder.h:: 23:
note: In file included from expanded from macro 'ABSL_INTERNAL_X'/usr/local/clang/include/absl/status/status.h
:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h  :61129 | :
 /usr/local/clang/include/absl/strings/cord.h : 982 : 39 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
ABSL  _982I | N T E R NvAoLi_dA TATpRpIeBnUdTTEr_eCeATPoTIUnRlEiDn_eBdY((CtohridsR)e)p,*   a b s l _ n o n n u l l   t r e e , 
        |                                        ^ 
  /usr/local/clang/include/absl/base/nullability.h\:
241      :| 22                                                   ^:
 note: expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/container/internal/common.h
:31:  9241: |  #note: dmacro 'ABSL_INTERNAL_IF_true' defined heree
fin   e31  | a#bdself_innoen nAuBlSlL __INNoTnEnRuNlAlL
_      I| F                     ^_
true(if_satisfied, ...) In file included from is2/s2wedge_relations.ccf:_18s:
aIn file included from t../src/s2/s2wedge_relations.hi:s24f:
iIn file included from e../src/s2/s2point.hd:
27      :
| In file included from         ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:984:36: In file included from warning: s2/s2text_format.cc:type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]16
:
In file included from ../src/s2/s2text_format.h:34:
  In file included from 984../src/s2/mutable_s2shape_index.h | : 30 :
 In file included from  /usr/local/clang/include/absl/container/btree_map.hv:o67i:
d/usr/local/clang/include/absl/container/internal/btree_container.h :A624p:p3e:n dwarning: T'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]r
eeToT  r624e | e ( CAoBrSdLR_eIpN*T EaRbNsAlL__nXo(ntnruyl_le mtprleaec,e ,M ettrhyo_deImdpelnatcief_iheirn tm_eitmhpold,) ;c
o      n| s                                   ^t
 &/usr/local/clang/include/absl/base/nullability.h,: 241t:r22u:e ,note: 
expanded from macro 'absl_nonnull'      
|   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
241 | #  d625e | f i n e   a b s l _ n o n n u l l   _cNoonnsntu_lilt
e      r| a                     ^t
or(hint) ABSL_INTERNIn file included from As2/s2wedge_relations.ccL:_18C:
OIn file included from M../src/s2/s2wedge_relations.hM:A24):
;In file included from 
../src/s2/s2point.h      :| 27                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:

In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/container/internal/btree_container.hIn file included from :/usr/local/clang/include/absl/status/status.h611::6747:
:In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h:note: 29expanded from macro 'ABSL_INTERNAL_X':

/usr/local/clang/include/absl/strings/cord.h:985:30  :611  | warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
       985  |     A B SvLo_iIdN TAEpRpNeAnLd_TArTeTeR(ICBoUrTdER_eCpA*P TaUbRsElD__nBoYn(ntuhlils )t)r,e e ,   M e t h o d I d e n t i f i e r   m e t h o d\)
;      
|                                                     ^~~~| 
                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:986:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  986 |     void PrependTreeToInlined(CordRep* absl_nonnull tree,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/container/internal/btree_container.h/usr/local/clang/include/absl/status/internal/status_internal.h::62629::
3:/usr/local/clang/include/absl/strings/cord.h :988warning: :37passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]:
 warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  626 |     988A | B S L _ IvNoTiEdR NPArLe_pXe(ntdrTyr_eeemTpolTarceee,( Ctorryd_Reempp*l aacbes_lh_innotn_niumlpll ,t r&e&e,,  fMaeltsheo,d
I      d| e  ^n
ti/usr/local/clang/include/absl/container/internal/btree_container.hf:i611e:r52 :m enote: texpanded from macro 'ABSL_INTERNAL_X'h
od);  
611       | |                                      ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :  Anote: Bexpanded from macro 'absl_nonnull'S
L_  I241N | T#EdReNfAiLn_eA TaTbRsIlB_UnToEn_nCuAlPlT U_RNEoDn_nBuYl(lt
h      i| s                     ^)
),               In file included from  s2/s2wedge_relations.cc : 18 :
 In file included from  ../src/s2/s2wedge_relations.h : 24 :
 In file included from  ../src/s2/s2point.h\:
27      :
| In file included from                                                    ^../src/s2/s2coder.h
:23:
In file included from /usr/local/clang/include/absl/container/internal/common.h/usr/local/clang/include/absl/status/status.h::3267::
9In file included from :/usr/local/clang/include/absl/status/internal/status_internal.h :29note: :
macro 'ABSL_INTERNAL_IF_false' defined here/usr/local/clang/include/absl/strings/cord.h
:989:31   :32  | warning: #type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]d
efin  e989  | A B S L _vIoNiTdE RPNrAeLp_eInFd_Tfraeles(eC(oirfd_Rseapt*i safbiseld_,n o.n.n.u)l l_ _tVrAe_eA,R GMSe_t_h
o      d| I        ^d
entifier method);
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:994:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  994 |     void CopyTo(std::string* absl_nonnull dst)In file included from  s2/s2text_format.ccc:o16n:
sIn file included from t../src/s2/s2text_format.h :{34
:
      In file included from | ../src/s2/mutable_s2shape_index.h                             ^:
30:
In file included from /usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/container/btree_map.h::24167::
22:/usr/local/clang/include/absl/container/internal/btree_container.h :628note: :expanded from macro 'absl_nonnull'3
:   warning: 241passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted] | 
#def  i628n | e   aAbBsSlL__nIoNnTnEuRlNlA L__NXo(ntnruyl_le
m      p| l                     ^a
ce, try_emplace_hint_impIn file included from ls2/s2wedge_relations.cc,: 18&:
&In file included from ,../src/s2/s2wedge_relations.h :t24r:
uIn file included from e../src/s2/s2point.h,:
27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:999:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  999 |     void CopyToArray(char      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNA*L_ AaTbTsRlI_BnUoTnEn_uClAlP TdUsRtE)D _cBoYn(stth;i
s      )| )                           ^,
    /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
      241  |  # d e f i n e  \a
b      s| l                                                   ^_
non/usr/local/clang/include/absl/container/internal/common.hn:u31l:l9 :_ Nnote: omacro 'ABSL_INTERNAL_IF_true' defined heren
nul   l31
 |       #| d                     ^e
fine ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
In file included from       s2/s2wedge_relations.cc| :        ^18
:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
In file included from /usr/local/clang/include/absl/strings/cord.hs2/s2text_format.cc::101216::
37In file included from :../src/s2/s2text_format.h :34warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/mutable_s2shape_index.h:30:
In file included from  /usr/local/clang/include/absl/container/btree_map.h1012: | 67 :
 /usr/local/clang/include/absl/container/internal/btree_container.h : 628a:b3s:l :warning: :'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]c
ord_i  n628t | e r nAaBlS:L:_CIoNrTdEzRINnAfLo_*X (atbrsyl__enmuplllaacbel,e  tcroyr_dezm_pilnafcoe(_)h icnotn_sitm p{l
,       | &                                    ^&
, t/usr/local/clang/include/absl/base/nullability.hr:u257e:,23
:       | note:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~expanded from macro 'absl_nullable'

    629257 |  |  # d e f i n e   a b s l _ n u l l acbolnes t__Niutlelraabtloer
(      h| i                      ^n
t) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/clang/include/absl/container/internal/btree_container.hs2/s2wedge_relations.cc::61118::
47In file included from :../src/s2/s2wedge_relations.h :24note: :
expanded from macro 'ABSL_INTERNAL_X'In file included from 
../src/s2/s2point.h:27:
In file included from   ../src/s2/s2coder.h611: | 23 :
 In file included from  /usr/local/clang/include/absl/status/status.h : 67 :
 In file included from  /usr/local/clang/include/absl/status/internal/status_internal.h : 29A:
B/usr/local/clang/include/absl/strings/cord.hS:L1017_:I51N:T Ewarning: Rtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]N
AL_A T1017T | R I B U TvEo_iCdA PsTeUtR_EcDo_rBdYz(_tihnifso)()c,o r d _ i n t e r n a l : : C o r d z I n f o *   a b\s
l      _| n                                              ^~~~o
nnull cordz_info) {
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1049:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1049 |   static bool GetFlatAux(absl::cord_internal::CordRep* absl_nonnull rep,
      | /usr/local/clang/include/absl/container/internal/btree_container.h                                                       ^:
638:63:/usr/local/clang/include/absl/base/nullability.h :241warning: :22'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
 note: expanded from macro 'absl_nonnull'
  638   | 241  |  # d e f icnoen satb skle_yn_oanrngu<lKl>  _&Nko nAnBuSlLl_
I      N| T                     ^E
RNAL_ATTRIBUTE_In file included from Cs2/s2wedge_relations.ccA:P18T:
UIn file included from R../src/s2/s2wedge_relations.hE:D24_:
BIn file included from Y../src/s2/s2point.h(:t27h:
iIn file included from s../src/s2/s2coder.h):)23
:
      In file included from | /usr/local/clang/include/absl/status/status.h                                                              ^~~~:
67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1050:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1050 |                          absl::string_view* absl_nonnull fragment);
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1054:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1054 |       absl::cord_/usr/local/clang/include/absl/container/internal/btree_container.hi:n648t:e7r:n awarning: l'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]:
:Cor  d648R | e p *   a b stlh_inso)n)n uAlBlS Lr_eApT,T
R      I| B                                    ^U
TE/usr/local/clang/include/absl/base/nullability.h_:L241I:F22E:T Inote: Mexpanded from macro 'absl_nonnull'E
_B  O241U | N#Dd e{f
i      n| e      ^~~~ 
absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1061:34: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1061 |   void CopyToArraySlowPath(char* absl_nonnull dst) const;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1078:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1078 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() const&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1079:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1079 |   absl::cord_internal::CordRep* absl_nonnull TakeRep() &&;
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1116:37: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1116 |   const crc_internal::CrcCordState* absl_nullable MaybeGetCrcCordState() const;
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1120:30: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1120 |   void CopyToArrayImpl(char* absl_nonnull dst) const;
      |                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from In file included from s2/s2text_format.ccs2/s2wedge_relations.cc::1618:
:
In file included from In file included from ../src/s2/s2text_format.h../src/s2/s2wedge_relations.h::3424:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2point.h::3327:
:
In file included from In file included from ../src/s2/base/commandlineflags.h../src/s2/s2coder.h::2123:
:
In file included from In file included from /usr/local/clang/include/absl/flags/flag.h/usr/local/clang/include/absl/status/status.h::6740:
:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:/usr/local/clang/include/absl/flags/commandlineflag.h29::
163:/usr/local/clang/include/absl/strings/cord.h56::1140 :49warning: : type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163  | 1140  |   b o o l   P a r s e F r o m ( a b s l : : s t r i n g _ v i eCwo rvdaRleupeE,x tsetrdn:a:ls*t raibnsgl*_ naobnsnlu_lnlo nrneupl)l; 
e      r| r                                                ^o
r);
      /usr/local/clang/include/absl/base/nullability.h| :                                                       ^241
:22: /usr/local/clang/include/absl/base/nullability.hnote: :expanded from macro 'absl_nonnull'241
:22:   241 | note: #expanded from macro 'absl_nonnull'd
ef  i241n | e# daebfsiln_en oanbnsull_ln o_nNnounlnlu l_lN
o      n| n                     ^u
ll
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1146:10: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1146 | CordRep* absl_nonnull NewExternalRep(absl::sIn file included from ts2/s2text_format.ccr:i16n:
gIn file included from _../src/s2/s2text_format.hv:i34e:
wIn file included from  ../src/s2/mutable_s2shape_index.hd:a33t:
aIn file included from ,../src/s2/base/commandlineflags.h
:      21| :
         ^In file included from 
/usr/local/clang/include/absl/flags/flag.h:40/usr/local/clang/include/absl/base/nullability.h:
:241/usr/local/clang/include/absl/flags/commandlineflag.h::22193:: 27:note:  expanded from macro 'absl_nonnull'warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  241 | #  d193e | f i nvei ratbusall_ nvoonindu lRle a_dN(ovnoniudl*l 
a      b| s                     ^l
_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1159:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1159 | inline CordRep* absl_nonnull NewExternalRep(
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1183:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1183 |                                      CordRep* absl_nullable rep)
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1222:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1222 | inline void Cord::InlineRep::Swap(Cord::InlineRep* absl_nonnull rhs) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1230:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1230 | inline const char* absl_nullable Cord::InlineRep::data() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1234:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1234 | inline const char* absl_nonnull Cord::InlineRep::as_chars() const {
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1239:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1239 | inline absl::cord_internal::CordRep* absl_nonnull Cord::InlineRep::as_tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1245:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1245 | inline absl::cord_internal::CordRep* absl_nullable Cord::InlineRep::tree()
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1258 | inline cord_internal::CordRepFlat* absl_nonnull
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1268:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1268 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1275:51: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1275 | inline void Cord::InlineRep::EmplaceTree(CordRep* absl_nonnull rep,
      |                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1282:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1282 | inline void Cord::InlineRep::SetTree(CordRep* absl_nonnull rep,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1290:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
 1290 | inline void Cord::InlineRep::SetTreeOrEmpty(CordRep* absl_nullable rep,
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlIn file included from Ws2/s2wedge_relations.cco:r18d:
(In file included from 
../src/s2/s2wedge_relations.h      :| 24                       ^:

In file included from ../src/s2/s2point.h:27:
/usr/local/clang/include/absl/base/nullability.hIn file included from :../src/s2/s2coder.h241::2322:
:In file included from  /usr/local/clang/include/absl/status/status.h:note: 67expanded from macro 'absl_nonnull':

In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:  29241:
 | /usr/local/clang/include/absl/strings/cord.h#:d1301e:f56i:n ewarning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]a
bsl_ n1301o | ninnulliln e_ Nvoonindu lClo
r      d| :                     ^:
InlineRep:In file included from :s2/s2text_format.ccC:o16m:
mIn file included from i../src/s2/s2text_format.ht:T34r:
eIn file included from e../src/s2/mutable_s2shape_index.h(:c33o:
nIn file included from s../src/s2/base/commandlineflags.ht: 21C:
oIn file included from r/usr/local/clang/include/absl/flags/flag.hd:R42e:
pIn file included from */usr/local/clang/include/absl/flags/internal/flag.h :a30b:
s/usr/local/clang/include/absl/base/call_once.hl:_53n:u22l:l awarning: btype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
e    o53l | d _ r e pa,b
s      l| :                                                       ^:
onc/usr/local/clang/include/absl/base/nullability.he:_257f:l23a:g *note:  expanded from macro 'absl_nullable'a
bs  l257_ | n#odnenfuilnle  falbasgl)_;n
u      l| l                     ^a
ble _/usr/local/clang/include/absl/base/nullability.hN:u241l:l22a:b lnote: eexpanded from macro 'absl_nonnull'

      |                         ^241
 | #define absl_In file included from ns2/s2wedge_relations.cco:n18n:
uIn file included from l../src/s2/s2wedge_relations.hl: 24_:
NIn file included from o../src/s2/s2point.hn:n27u:
lIn file included from l../src/s2/s2coder.h
:      23| :
                     ^In file included from 
/usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1302:50: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1302 |                                         CordRep* absl_nonnull rep,
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnullIn file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
       | _                                ^N
onn/usr/local/clang/include/absl/base/nullability.hu:l241l:
22      :|                       ^note: 
expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flagIn file included from *s2/s2wedge_relations.cc :a18b:
sIn file included from l../src/s2/s2wedge_relations.h_:n24o:
nIn file included from n../src/s2/s2point.hu:l27l:
In file included from ../src/s2/s2coder.h: 23f:
lIn file included from a/usr/local/clang/include/absl/status/status.hg:)67;:

In file included from       /usr/local/clang/include/absl/status/internal/status_internal.h| :                 ^29
:
/usr/local/clang/include/absl/strings/cord.h/usr/local/clang/include/absl/base/nullability.h::1312241::3822::  warning: note: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]expanded from macro 'absl_nonnull'

  241 |  #1312d | eifnilnien ea basbls_ln:o:ncnourldl_ i_nNtoenrnnualll:
:      C| o                     ^r
dRep* absl_nullable Cord::InlineRep::clear() {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.hIn file included from :s2/s2text_format.cc67::
16In file included from :
/usr/local/clang/include/absl/status/internal/status_internal.hIn file included from :../src/s2/s2text_format.h29::
34:
/usr/local/clang/include/absl/strings/cord.hIn file included from :../src/s2/mutable_s2shape_index.h1321::3348:
:In file included from  ../src/s2/base/commandlineflags.h:warning: 21type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h :132130 | :
i/usr/local/clang/include/absl/base/call_once.hn:l111i:n40e:  vwarning: otype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
d Co  r111d | :v:oIindl iLnoewRLeepv:e:lCCoaplylTOonAcrer(aayb(sclh:a:ro*n caeb_sfll_ango*n naublsll _dnsotn)n ucloln sftl a{g
,       | C                                               ^a
lla/usr/local/clang/include/absl/base/nullability.hb:l241e:&22&:  fnote: nexpanded from macro 'absl_nonnull',

      |                                          ^241
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1505:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1505 | inline void Cord::CopyToArrayImpl(char* absl_nonnull dst) const {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1514:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1514 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1525:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1525 |     cord_internal::CordRep* absl_nonnull tree) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1530:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1530 | inline Cord::ChunkIterator::ChunkIterator(const Cord* absl_nonnull cord) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1666:48: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1666 | inline Cord Cord::AdvanceAndRead(CharIterator* absl_nonnull it,
      |                                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
In file included from /usr/local/clang/include/absl/status/internal/status_internal.h:29:
/usr/local/clang/include/absl/strings/cord.h:1672:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1672 | inline void Cord::Advance(CharIterator* absl_nonnull it, size_t n_bytes) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:18:
In file included from ../src/s2/s2wedge_relations.h:24:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
559 warnings generated.
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   virtual void Read(void* absl_nonnull dst) const = 0;
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:52:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   52 | std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:53:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   53 |     absl::once_flag* absl_nonnull flag);
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:111:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  111 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:31:
In file included from /usr/local/clang/include/absl/container/flat_hash_set.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:40:
In file included from /usr/local/clang/include/absl/log/internal/nullstream.h:37:
/usr/local/clang/include/absl/strings/string_view.h:53:54: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   53 | constexpr string_view NullSafeStringView(const char* absl_nullable p) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:55:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2wedge_relations.cc:21:
In file included from ../src/s2/s2predicates.h:57:
In file included from ../src/s2/s1chord_angle.h:31:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::unique_ptr<LogMessageData> data_;
      |   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
147 warnings generated.
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##In file included from Is2/s2winding_operation.ccm:p19l:
(In file included from  ../src/s2/s2winding_operation.h : 23 :
 In file included from  ../src/s2/s2builder.h : 35 :
 In file included from  ../src/s2/id_set_lexicon.h : 28 :
 In file included from  ../src/s2/base/logging.h : 21 :
\In file included from 
/usr/local/clang/include/absl/log/check.h      :| 37                               ^:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:/usr/local/clang/include/absl/base/nullability.h21::
257In file included from :/usr/local/clang/include/absl/log/internal/check_op.h23::41 :
In file included from note: /usr/local/clang/include/absl/log/internal/strip.hexpanded from macro 'absl_nullable':
26:
In file included from   /usr/local/clang/include/absl/log/internal/log_message.h257: | 53#:
de/usr/local/clang/include/absl/types/source_location.hf:i113n:e19 :a bwarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
_nul  l113a | b l e   _ N uclolnasbtl ec
h      a| r                      ^*
 absl_noIn file included from ns2/s2text_format.ccn:u16l:
lIn file included from  ../src/s2/s2text_format.hf:i34l:
eIn file included from _../src/s2/mutable_s2shape_index.hn:a36m:
eIn file included from  ../src/s2/base/logging.h=: 21_:
_In file included from b/usr/local/clang/include/absl/log/check.hu:i37l:
tIn file included from i/usr/local/clang/include/absl/log/internal/check_impl.hn:_21F:
I/usr/local/clang/include/absl/log/internal/check_op.hL:E505(:)1):  {warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                   ^/usr/local/clang/include/absl/log/internal/check_op.h
:498:35:/usr/local/clang/include/absl/base/nullability.h :241note: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'22
: note:   expanded from macro 'absl_nonnull'498
 |     241  |  # d eifnitn ev 1a,b siln_tn ovn2n,u lclo n_sNto ncnhualrl*
       a| b                     ^s
l_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2winding_operation.cc :19note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2winding_operation.h  :24123 | :
#In file included from d../src/s2/s2builder.he:f35i:
nIn file included from e../src/s2/id_set_lexicon.h :a28b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41
:
      In file included from | /usr/local/clang/include/absl/log/internal/strip.h                     ^:
26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:71:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   71 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, In file included from is2/s2text_format.ccn:t16 :
lIn file included from i../src/s2/s2text_format.hn:e34,:

In file included from       ../src/s2/mutable_s2shape_index.h| :                         ^36
:
In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/base/nullability.h::21241:
:In file included from 22/usr/local/clang/include/absl/log/check.h:: 37:
note: In file included from expanded from macro 'absl_nonnull'/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
  241/usr/local/clang/include/absl/log/internal/check_op.h | :#506d:e1f:i nwarning: etype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension] 
abs  l506_ | nAoBnSnLu_lLlO G__NIoNnTnEuRlNlA
L      _| C                     ^H
ECK_OP_IMPL(Check_GE, >=)
      | ^
In file included from /usr/local/clang/include/absl/log/internal/check_op.hs2/s2winding_operation.cc::48819::
32In file included from :../src/s2/s2winding_operation.h :23note: :
expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'In file included from 
../src/s2/s2builder.h:35:
In file included from   ../src/s2/id_set_lexicon.h488: | 28 :
 In file included from i../src/s2/base/logging.hn:l21i:
nIn file included from e/usr/local/clang/include/absl/log/check.h :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht:e21x:
pIn file included from r/usr/local/clang/include/absl/log/internal/check_op.h :c41o:
nIn file included from s/usr/local/clang/include/absl/log/internal/strip.ht: 26c:
h/usr/local/clang/include/absl/log/internal/log_message.ha:r82*: 26a:b swarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]_
nul   l82a | b l eL ongaMmees#s#aIgmep(lc(o n s t   c h a r *   a b s l _ n o n n\u
l      l|                                 ^f
il/usr/local/clang/include/absl/base/nullability.he:,257 :i23n:t  note: lexpanded from macro 'absl_nullable'i
ne  ,257
 |       #| d                         ^e
fi/usr/local/clang/include/absl/base/nullability.hn:e241 :a22b:s lnote: _expanded from macro 'absl_nonnull'n
ul  l241a | #defbilnee  _aNbuslll_anbolnen
u      l| l                      ^ 
_Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull In file included from _s2/s2winding_operation.ccN:o19n:
nIn file included from u../src/s2/s2winding_operation.hl:l23
:
      In file included from | ../src/s2/s2builder.h                     ^:
35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #defIn file included from is2/s2text_format.ccn:e16 :
aIn file included from b../src/s2/s2text_format.hs:l34_:
nIn file included from o../src/s2/mutable_s2shape_index.hn:n36u:
lIn file included from l../src/s2/base/logging.h :_21N:
oIn file included from n/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h      :| 21                     ^:

/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inlinIn file included from es2/s2winding_operation.cc :c19o:
nIn file included from s../src/s2/s2winding_operation.ht:e23x:
pIn file included from r../src/s2/s2builder.h :c35o:
nIn file included from s../src/s2/id_set_lexicon.ht: 28c:
hIn file included from a../src/s2/base/logging.hr:*21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_impl.hl:l21a:
bIn file included from l/usr/local/clang/include/absl/log/internal/check_op.he: 41n:
aIn file included from m/usr/local/clang/include/absl/log/internal/strip.he:#26#:
I/usr/local/clang/include/absl/log/internal/log_message.hm:p121l:(41 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
      121  |      L o g M e s s\a
g      e| &                               ^ 
To/usr/local/clang/include/absl/base/nullability.hS:i257n:k23O:n lnote: yexpanded from macro 'absl_nullable'(
ab  s257l | :#:dLeofgiSnien ka*b salb_snlu_lnloanbnluel l_ Nsuilnlka)b;l
e      
|                                               ^| 
                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'In file included from 
s2/s2text_format.cc:16  :
241In file included from  | ../src/s2/s2text_format.h#:d34e:
fIn file included from i../src/s2/mutable_s2shape_index.hn:e36 :
aIn file included from b../src/s2/base/logging.hs:l21_:
nIn file included from o/usr/local/clang/include/absl/log/check.hn:n37u:
lIn file included from l/usr/local/clang/include/absl/log/internal/check_impl.h :_21N:
o/usr/local/clang/include/absl/log/internal/check_op.hn:n506u:l1l:
       | warning:                      ^type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnIn file included from us2/s2winding_operation.ccl:l19 :
_In file included from N../src/s2/s2winding_operation.ho:n23n:
uIn file included from l../src/s2/s2builder.hl:
35      :
| In file included from                      ^../src/s2/id_set_lexicon.h
:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operator<<(std::ostream& (*absl_nonnull m)(std::ostream& os));
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:191:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 |   LogMessage& operator<<(std::ios_base& (*absl_nonnull m)(std::ios_base& os));
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:In file included from 35s2/s2text_format.cc:
:In file included from 16../src/s2/id_set_lexicon.h:
:In file included from 28../src/s2/s2text_format.h:
:In file included from 34../src/s2/base/logging.h:
:In file included from 21../src/s2/mutable_s2shape_index.h:
:In file included from 36/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/base/logging.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/check.h:
:In file included from 37/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21/usr/local/clang/include/absl/log/internal/strip.h:
:26/usr/local/clang/include/absl/log/internal/check_op.h:
:507/usr/local/clang/include/absl/log/internal/log_message.h::1306:: 3:warning:  type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]warning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  507 |   A306B | S L _aLbOsGl__InNoTnEnRuNlAlL _sCtHdE:C:Ku_nOiPq_uIeM_PpLt(rC<hLeocgkM_eGsTs,a g>e)D
a      t| a^>
 da/usr/local/clang/include/absl/log/internal/check_op.ht:a488_:;32
:       | note:   ^expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'

/usr/local/clang/include/absl/base/nullability.h:  241488: | 22 :  inote: nexpanded from macro 'absl_nonnull'l
in  e241  | c#odnesfine atbesxlp_rn ocnonnusltl  c_hNaorn*n ualbls
l      _| n                     ^u
llable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from In file included from s2/util/math/mathutil.cc/usr/local/clang/include/absl/log/check.h::1737:
:
In file included from In file included from ../src/s2/util/math/mathutil.h/usr/local/clang/include/absl/log/internal/check_impl.h::2721:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h../src/s2/base/logging.h::50721::
1In file included from :/usr/local/clang/include/absl/log/check.h :37warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_impl.h:21/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 489/usr/local/clang/include/absl/log/internal/check_op.h::4741::
 In file included from /usr/local/clang/include/absl/log/internal/strip.hnote: :expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'26
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47  :
489In file included from  | /usr/local/clang/include/absl/log/internal/structured_proto.h : 27 :
 In file included from  /usr/local/clang/include/absl/log/internal/proto.h :c34o:
ns/usr/local/clang/include/absl/types/span.ht: 212T:122&:  vwarning: 1type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension],
 con  s212t |   T 2u&s ivn2g,  pcooinnstte rc h=a rT**  aabbssll__nnounlnlualbli leixtpyr_tuenxktn)o w{n ; 
        |                       ^\

      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:289/usr/local/clang/include/absl/base/nullability.h::34241:: 22:note:  expanded from macro 'absl_nullability_unknown'note: 
expanded from macro 'absl_nonnull'
    289241 |  | ##ddeeffiinnee  aabbssll__nnuolnlnaublill i_tNyo_nunnuklnlo
w      n|                       ^_
Null_unspecified
      |                                  ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:213:34: warning: type nullability specifier '_Null_unspecified' is a Clang extension [-Wnullability-extension]
  213 |   using const_pointer = const T* absl_nullability_unknown;
      |                                  ^
/usr/local/clang/include/absl/base/nullability.h:289:34: note: expanded from macro 'absl_nullability_unknown'
  289 | #define absl_nullability_unknown _Null_unspecified
      |                                  ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from In file included from s2/util/math/mathutil.cc../src/s2/id_set_lexicon.h::1728:
:
In file included from In file included from ../src/s2/util/math/mathutil.h../src/s2/base/logging.h::2721:
:
In file included from In file included from ../src/s2/base/logging.h/usr/local/clang/include/absl/log/check.h::2137:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h/usr/local/clang/include/absl/log/internal/check_impl.h::3721:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h/usr/local/clang/include/absl/log/internal/check_op.h::2141:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/internal/strip.h::4126:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h/usr/local/clang/include/absl/log/internal/strip.h::31926::
20In file included from :/usr/local/clang/include/absl/log/internal/log_message.h :47warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from   /usr/local/clang/include/absl/log/internal/proto.h319: | 34 :
  /usr/local/clang/include/absl/types/span.h :c733o:n31s:t  warning: wtype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]c
har_  t733* |  caobnsslt_enxuplrl aSbplaen <cTo>n sMta&k evS)p;a
n      (| T                   ^*
 ab/usr/local/clang/include/absl/base/nullability.hs:l257_:n23u:l lnote: aexpanded from macro 'absl_nullable'b
le   257p | t#rd eAfBiSnLe_ AaTbTsRlI_BnUuTlEl_aLbIlFeE T_INMuEl_lBaObUlNeD
,      
|                             ^| 
                              ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: In file included from type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]s2/util/math/mathutil.cc
:17:
In file included from ../src/s2/util/math/mathutil.h  :32127 | :
iIn file included from n../src/s2/base/logging.hl:i21n:
eIn file included from  /usr/local/clang/include/absl/log/check.hL:o37g:
MIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.hs:s21a:
gIn file included from e/usr/local/clang/include/absl/log/internal/check_op.h&: 41L:
oIn file included from g/usr/local/clang/include/absl/log/internal/strip.hM:e26s:
sIn file included from a/usr/local/clang/include/absl/log/internal/log_message.hg:e47::
:In file included from o/usr/local/clang/include/absl/log/internal/structured_proto.hp:e27r:
aIn file included from t/usr/local/clang/include/absl/log/internal/proto.ho:r34<:
</usr/local/clang/include/absl/types/span.h(:w739c:h21a:r _warning: ttype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]*
 abs  l739_ | nSuplalna<bTl>e  Mva)k e{S
p      a| n                                                   ^(
T*/usr/local/clang/include/absl/base/nullability.h :a257b:s23l:_ nnote: uexpanded from macro 'absl_nullable'l
la  b257l | e# dbeefgiinne  AaBbSsLl__AnTuTlRlIaBbUlTeE __LNIuFlElTaIbMlEe_
B      O| U                      ^N
D,
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:740:21: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  740 |                  T* absl_nullable end) noexcept {
      In file included from | s2/s2winding_operation.cc                    ^:
19:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/s2winding_operation.h::25723::
23In file included from :../src/s2/s2builder.h :35note: :
expanded from macro 'absl_nullable'In file included from 
../src/s2/id_set_lexicon.h:28  :
257In file included from  | ../src/s2/base/logging.h#:d21e:
fIn file included from i/usr/local/clang/include/absl/log/check.hn:e37 :
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hs:l21_:
nIn file included from u/usr/local/clang/include/absl/log/internal/check_op.hl:l41a:
bIn file included from l/usr/local/clang/include/absl/log/internal/strip.he: 26_:
N/usr/local/clang/include/absl/log/internal/log_message.hu:l340l:a46b:l ewarning: 
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]      
|                       ^
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:794:8: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  794 |     T* absl_nullable ptr ABSL_ATTRIBUTE_LIFETIME_BOUND, size_t size) noexcept {
      |        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:47:
In file included from /usr/local/clang/include/absl/log/internal/structured_proto.h:27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.h:799:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  799 | Span<const T> MakeConstSpan(T* absl_nullable begin
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #defineIn file included from  s2/s2text_format.cca:b16s:
lIn file included from _../src/s2/s2text_format.hn:u34l:
lIn file included from a../src/s2/mutable_s2shape_index.hb:l36e:
 In file included from _../src/s2/base/logging.hN:u21l:
lIn file included from a/usr/local/clang/include/absl/log/check.hb:l37e:

In file included from       /usr/local/clang/include/absl/log/internal/check_impl.h| :                      ^21
:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
In file included from s2/util/math/mathutil.cc  :51117 | :
cIn file included from o../src/s2/util/math/mathutil.hn:s27t:
 In file included from c../src/s2/base/logging.hh:a21r:
*In file included from  /usr/local/clang/include/absl/log/check.ha:b37s:
lIn file included from _/usr/local/clang/include/absl/log/internal/check_impl.hn:u21l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hb:l41e:
 In file included from C/usr/local/clang/include/absl/log/internal/strip.h:h26e:
cIn file included from k/usr/local/clang/include/absl/log/internal/log_message.hs:t47r:
cIn file included from m/usr/local/clang/include/absl/log/internal/structured_proto.hp:t27:
In file included from /usr/local/clang/include/absl/log/internal/proto.h:34:
/usr/local/clang/include/absl/types/span.hr:u801e:I32m:p lwarning: (type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

      |             ^
  801 |  /usr/local/clang/include/absl/base/nullability.h : 257 : 23 :   note:  expanded from macro 'absl_nullable' 
     257  |  # d e f i n e   a b s l _ nTu*l laabbslle_ n_uNlullalbalbel ee
n      d| )                      ^ 
noexcepIn file included from ts2/s2text_format.cc :{16
:
      In file included from | ../src/s2/s2text_format.h                               ^:
34:
In file included from /usr/local/clang/include/absl/base/nullability.h../src/s2/mutable_s2shape_index.h::25736::
23In file included from :../src/s2/base/logging.h :21note: :
expanded from macro 'absl_nullable'In file included from 
/usr/local/clang/include/absl/log/check.h:37  :
257In file included from  | /usr/local/clang/include/absl/log/internal/check_impl.h#:d21e:
f/usr/local/clang/include/absl/log/internal/check_op.hi:n512e: 17a:b swarning: ltype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]_
nul  l512a | b l e   _cNounlsltIn file included from a bs2/s2winding_operation.cccl:he19a
:
r      *In file included from |                        ^../src/s2/s2winding_operation.ha
b:s23l:
_In file included from n../src/s2/s2builder.hu:l35l:
aIn file included from b../src/s2/id_set_lexicon.hl:e28 :
sIn file included from 1../src/s2/base/logging.h,: 21c:
oIn file included from n/usr/local/clang/include/absl/log/check.hs:t37 :
cIn file included from h/usr/local/clang/include/absl/log/internal/check_impl.ha:r21*:
 In file included from a/usr/local/clang/include/absl/log/internal/check_op.hb:s41l:
_In file included from n/usr/local/clang/include/absl/log/internal/strip.hu:l26l:
a/usr/local/clang/include/absl/log/internal/log_message.hb:l398e: 11s:2 ,warning: 
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]      
|                 ^
  398/usr/local/clang/include/absl/base/nullability.h | : 257 : 23 : vnote: oexpanded from macro 'absl_nullable'i
d*   257a | b#sdle_fniunlel aabblsel _cnounlslta&b lve) ;_
N      u| l          ^l
abl/usr/local/clang/include/absl/base/nullability.he:
257      :| 23                      ^:
 note: expanded from macro 'absl_nullable'
  257 | #dIn file included from es2/s2text_format.ccf:i16n:
eIn file included from  ../src/s2/s2text_format.ha:b34s:
lIn file included from _../src/s2/mutable_s2shape_index.hn:u36l:
lIn file included from a../src/s2/base/logging.hb:l21e:
 In file included from _/usr/local/clang/include/absl/log/check.hN:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:

/usr/local/clang/include/absl/log/internal/check_op.h      :| 512                      ^:
47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullIn file included from as2/s2winding_operation.ccb:l19e:
 In file included from s../src/s2/s2winding_operation.h1:,23 :
cIn file included from o../src/s2/s2builder.hn:s35t:
 In file included from c../src/s2/id_set_lexicon.hh:a28r:
*In file included from  ../src/s2/base/logging.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/log/check.hn:u37l:
lIn file included from a/usr/local/clang/include/absl/log/internal/check_impl.hb:l21e:
 In file included from s/usr/local/clang/include/absl/log/internal/check_op.h2:,41
:
      In file included from | /usr/local/clang/include/absl/log/internal/strip.h                                              ^:
26:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/log/internal/log_message.h::257400::2317::  note: warning: expanded from macro 'absl_nullable'type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]

  257   | 400# | d e f i nceo nasbts lv_oniudl*l aabblsel __nNuullllaabbllee 
c      o| n                      ^s
t& v);
In file included from       s2/s2text_format.cc| :                ^16
:
In file included from ../src/s2/s2text_format.h/usr/local/clang/include/absl/base/nullability.h::34257:
:In file included from 23../src/s2/mutable_s2shape_index.h:: 36:
note: In file included from expanded from macro 'absl_nullable'../src/s2/base/logging.h
:21:
  In file included from 257/usr/local/clang/include/absl/log/check.h | :#37d:
eIn file included from f/usr/local/clang/include/absl/log/internal/check_impl.hi:n21e:
 /usr/local/clang/include/absl/log/internal/check_op.ha:b513s:l17_:n uwarning: ltype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]l
ab  l513e |   _ N u lcloanbslte 
c      h| a                      ^r
* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, coIn file included from ns2/s2winding_operation.ccs:t19 :
cIn file included from h../src/s2/s2winding_operation.ha:r23*:
 In file included from a../src/s2/s2builder.hb:s35l:
_In file included from n../src/s2/id_set_lexicon.hu:l28l:
aIn file included from b../src/s2/base/logging.hl:e21 :
sIn file included from 2/usr/local/clang/include/absl/log/check.h,:
37      :
| In file included from                 ^/usr/local/clang/include/absl/log/internal/check_impl.h
:21:
/usr/local/clang/include/absl/base/nullability.hIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h257::4123:
:In file included from  /usr/local/clang/include/absl/log/internal/strip.h:note: 26expanded from macro 'absl_nullable':

/usr/local/clang/include/absl/log/internal/log_message.h:  425257: | 31#:d ewarning: ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]i
ne a  b425s | l _ nLuolglMaebslsea g_eNFualtlaalb(lceo
n      s| t                      ^ 
char* aIn file included from bs2/s2text_format.ccs:l16_:
nIn file included from o../src/s2/s2text_format.hn:n34u:
lIn file included from l../src/s2/mutable_s2shape_index.h :f36i:
lIn file included from e../src/s2/base/logging.h,: 21i:
nIn file included from t/usr/local/clang/include/absl/log/check.h :l37i:
nIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h): 21A:
B/usr/local/clang/include/absl/log/internal/check_op.hS:L515_:A47T:T Rwarning: Itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]B
UTE  _515C | O L D ; 
c      o| n                              ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  anote: bexpanded from macro 'absl_nonnull's
l_  n241u | l#ldaebflien es 1a,b sclo_nnsotn ncuhlalr *_ Naobnsnlu_lnlu
l      l| a                     ^b
le s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define abIn file included from ss2/s2winding_operation.ccl:_19n:
uIn file included from l../src/s2/s2winding_operation.hl:a23b:
lIn file included from e../src/s2/s2builder.h :_35N:
uIn file included from l../src/s2/id_set_lexicon.hl:a28b:
lIn file included from e../src/s2/base/logging.h
:      21| :
                      ^In file included from 
/usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:In file included from 21s2/s2text_format.cc:
:In file included from 16/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 41../src/s2/s2text_format.h:
:In file included from 34/usr/local/clang/include/absl/log/internal/strip.h:
:In file included from 26../src/s2/mutable_s2shape_index.h:
:36/usr/local/clang/include/absl/log/internal/log_message.h:
:In file included from 426../src/s2/base/logging.h::3121:
:In file included from  /usr/local/clang/include/absl/log/check.h:warning: 37type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
  426/usr/local/clang/include/absl/log/internal/check_op.h | : 516 :L17o:g Mwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
sag  e516F | a t a l (ccoonnsstt  cchhaarr**  aabbssll__nnoonnnnuullll  efxiplret,e xitn)t; 
l      i| n                ^e
,
/usr/local/clang/include/absl/base/nullability.h      :| 241                              ^:
22: /usr/local/clang/include/absl/base/nullability.h:note: 241expanded from macro 'absl_nonnull':
22:   241note:  | expanded from macro 'absl_nonnull'#
de  f241i | n#ed eafbisnle_ naobnsnlu_lnlo n_nNuolnln u_lNlo
n      n| u                     ^l
l
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from In file included from ../src/s2/s2text_format.hs2/s2winding_operation.cc::3419:
:
In file included from In file included from ../src/s2/mutable_s2shape_index.h../src/s2/s2winding_operation.h::3623:
:
In file included from In file included from ../src/s2/base/logging.h../src/s2/s2builder.h::2135:
:
In file included from In file included from /usr/local/clang/include/absl/log/check.h../src/s2/id_set_lexicon.h::3728:
:
In file included from In file included from /usr/local/clang/include/absl/log/internal/check_impl.h../src/s2/base/logging.h::2121:
:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h/usr/local/clang/include/absl/log/check.h::51737::
13In file included from :/usr/local/clang/include/absl/log/internal/check_impl.h :21warning: :
type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h:41  :
517In file included from  | /usr/local/clang/include/absl/log/internal/strip.hc:o26n:
s/usr/local/clang/include/absl/log/internal/log_message.ht: 427c:h31a:r *warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]a
bsl  _427n | u l l a b l e   C h e c k s t r c a sceocnmsptt rcuheaIrm*p la(b
s      l| _            ^n
on/usr/local/clang/include/absl/base/nullability.hn:u257l:l23 :f anote: iexpanded from macro 'absl_nullable'l
ur  e257_ | m#sdge)f iAnBeS La_bAsTlT_RnIuBlUlTaEb_lCeO L_DN;u
l      l| a                              ^b
le/usr/local/clang/include/absl/base/nullability.h
:      241| :                      ^22
: note: expanded from macro 'absl_nonnull'
In file included from s2/s2text_format.cc  :24116 | :
#In file included from d../src/s2/s2text_format.he:f34i:
nIn file included from e../src/s2/mutable_s2shape_index.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n21o:
nIn file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
 In file included from _/usr/local/clang/include/absl/log/internal/check_impl.hN:o21n:
n/usr/local/clang/include/absl/log/internal/check_op.hu:l518l:
17      :|                       ^
warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:In file included from 23s2/s2winding_operation.cc:: 19:
note: In file included from expanded from macro 'absl_nullable'../src/s2/s2winding_operation.h
:23:
  In file included from 257../src/s2/s2builder.h | :#35d:
eIn file included from f../src/s2/id_set_lexicon.hi:n28e:
 In file included from a../src/s2/base/logging.hb:s21l:
_In file included from n/usr/local/clang/include/absl/log/check.hu:l37l:
aIn file included from b/usr/local/clang/include/absl/log/internal/check_impl.hl:e21 :
_In file included from N/usr/local/clang/include/absl/log/internal/check_op.hu:l41l:
aIn file included from b/usr/local/clang/include/absl/log/internal/strip.hl:e26
:
      | /usr/local/clang/include/absl/log/internal/log_message.h                      ^:
436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
In file included from s2/s2text_format.cc:16  :
436In file included from  | ../src/s2/s2text_format.h : 34L:
oIn file included from g../src/s2/mutable_s2shape_index.hM:e36s:
sIn file included from a../src/s2/base/logging.hg:e21D:
eIn file included from b/usr/local/clang/include/absl/log/check.hu:g37F:
aIn file included from t/usr/local/clang/include/absl/log/internal/check_impl.ha:l21(:
c/usr/local/clang/include/absl/log/internal/check_op.ho:n518s:t47 :c hwarning: atype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]r
* a  b518s | l _ n o nconnusltl  cfhialre*, 
a      b| s                                   ^l
_n/usr/local/clang/include/absl/base/nullability.hu:l241l:a22b:l enote:  expanded from macro 'absl_nonnull's
1,   241c | o#ndsetf icnhea ra*b salb_snlo_nnnuulllla b_lNeo nsn2u,l
l      
|                                                     ^| 
                     ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:In file included from 37s2/s2winding_operation.cc:
:In file included from 19/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2winding_operation.h:
:/usr/local/clang/include/absl/log/internal/check_op.h23::
519In file included from :../src/s2/s2builder.h17::35 :
In file included from warning: ../src/s2/id_set_lexicon.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
28:
In file included from   ../src/s2/base/logging.h519: | 21 :
 In file included from  /usr/local/clang/include/absl/log/check.h :c37o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_impl.ht: 21c:
hIn file included from a/usr/local/clang/include/absl/log/internal/check_op.hr:*41 :
aIn file included from b/usr/local/clang/include/absl/log/internal/strip.hs:l26_:
n/usr/local/clang/include/absl/log/internal/log_message.ho:n446n:u43l:l  warning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]x
prt  e446x | t ) ;L
o      g| M                ^e
ss/usr/local/clang/include/absl/base/nullability.ha:g241e:Q22u:i enote: texpanded from macro 'absl_nonnull'l
yD  e241b | u#gdFeaftianle( caobnsslt_ ncohnanru*l la b_sNlo_nnnounlnlu
l      l|                       ^f
ile,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22In file included from :s2/s2text_format.cc :16note: :
expanded from macro 'absl_nonnull'In file included from 
../src/s2/s2text_format.h:34  :
241In file included from  | ../src/s2/mutable_s2shape_index.h#:d36e:
fIn file included from i../src/s2/base/logging.hn:e21 :
aIn file included from b/usr/local/clang/include/absl/log/check.hs:l37_:
nIn file included from o/usr/local/clang/include/absl/log/internal/check_impl.hn:n21u:
l/usr/local/clang/include/absl/log/internal/check_op.hl: 520_:N13o:n nwarning: utype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]l
l
      |                        ^520
 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | In file included from #s2/s2winding_operation.ccd:e19f:
iIn file included from n../src/s2/s2winding_operation.he: 23a:
bIn file included from s../src/s2/s2builder.hl:_35n:
uIn file included from l../src/s2/id_set_lexicon.hl:a28b:
lIn file included from e../src/s2/base/logging.h :_21N:
uIn file included from l/usr/local/clang/include/absl/log/check.hl:a37b:
lIn file included from e/usr/local/clang/include/absl/log/internal/check_impl.h
:      21| :
                      ^In file included from 
/usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from In file included from /usr/local/clang/include/absl/log/internal/strip.hs2/s2text_format.cc::2616:
:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h../src/s2/s2text_format.h::45434::
38In file included from :../src/s2/mutable_s2shape_index.h :36warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/base/logging.h:21:
In file included from   /usr/local/clang/include/absl/log/check.h454: | 37 :
 In file included from L/usr/local/clang/include/absl/log/internal/check_impl.ho:g21M:
e/usr/local/clang/include/absl/log/internal/check_op.hs:s521a:g17e:Q uwarning: itype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
tly  F521a | t a l ( ccoonnsstt  cchhaarr**  aabbssll__nnounlnlualbll ef isl1e,, 
c      o| n                                     ^s
t /usr/local/clang/include/absl/base/nullability.hc:h241a:r22*:  abnote: sexpanded from macro 'absl_nonnull'l
_n  u241l | l#defaibnlee  asb2s,l
_      n| o                ^n
nu/usr/local/clang/include/absl/base/nullability.hl:l257 :_23N:o nnote: nexpanded from macro 'absl_nullable'u
ll  
257       | | #                     ^d
efine absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19In file included from :
s2/s2text_format.ccIn file included from :../src/s2/s2winding_operation.h16::
23In file included from :
../src/s2/s2text_format.hIn file included from :../src/s2/s2builder.h34::
35In file included from :
../src/s2/mutable_s2shape_index.hIn file included from :../src/s2/id_set_lexicon.h36::
28In file included from :
../src/s2/base/logging.hIn file included from :../src/s2/base/logging.h21::
21In file included from :
/usr/local/clang/include/absl/log/check.hIn file included from :/usr/local/clang/include/absl/log/check.h37::
37In file included from :
/usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :/usr/local/clang/include/absl/log/internal/check_impl.h21::
21/usr/local/clang/include/absl/log/internal/check_op.h:
:In file included from 521/usr/local/clang/include/absl/log/internal/check_op.h::4741::
 In file included from /usr/local/clang/include/absl/log/internal/strip.hwarning: :type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]26
:
/usr/local/clang/include/absl/log/internal/log_message.h:  456521: | 38 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]c
ons  t456  | c h aLro*g Maebsssla_gneuQluliaebtlley Fsa1t,a lc(ocnosnts tc hcahra*r *a basbls_ln_unlolnanbullel  sf2i,l
e      ,|                                                ^i
nt/usr/local/clang/include/absl/base/nullability.h :l257i:n23e:, 
      note: | expanded from macro 'absl_nullable'                                     ^

  /usr/local/clang/include/absl/base/nullability.h257: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneuflilnaeb laeb s_lN_unlolnanbullel
       _| N                      ^o
nnullIn file included from 
s2/s2text_format.cc      :| 16                     ^:

In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:In file included from 21s2/s2winding_operation.cc:
:In file included from 19/usr/local/clang/include/absl/log/check.h:
:In file included from 37../src/s2/s2winding_operation.h:
:In file included from 23/usr/local/clang/include/absl/log/internal/check_impl.h:
:In file included from 21../src/s2/s2builder.h:
:/usr/local/clang/include/absl/log/internal/check_op.h35::
522In file included from :../src/s2/id_set_lexicon.h17::28 :
In file included from warning: ../src/s2/base/logging.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from   /usr/local/clang/include/absl/log/check.h522: | 37 :
 In file included from  /usr/local/clang/include/absl/log/internal/check_impl.h :c21o:
nIn file included from s/usr/local/clang/include/absl/log/internal/check_op.ht: 41c:
hIn file included from a/usr/local/clang/include/absl/log/internal/strip.hr:*26 :
a/usr/local/clang/include/absl/log/internal/log_message.hb:s457l:_38n:o nwarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]u
ll   e457x | p r t e x t ) ; 
        |                  ^ 
  /usr/local/clang/include/absl/base/nullability.h : 241 : 22 :   note:  expanded from macro 'absl_nonnull' 
    c241o | n#sdte fcihnaer *a basbls_ln_onnonnunlull l_ Nfoaninluulrle
_      m| s                     ^g
)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMesIn file included from ss2/s2text_format.cca:g16e:
BIn file included from u../src/s2/s2text_format.hi:l34d:
eIn file included from r../src/s2/mutable_s2shape_index.h(:c36o:
nIn file included from s../src/s2/base/logging.ht: 22c:
hIn file included from a/usr/local/clang/include/absl/log/log.hr:*209 :
aIn file included from b/usr/local/clang/include/absl/log/internal/log_impl.hs:l20_:
nIn file included from o/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:n63u:
ll/usr/local/clang/include/absl/log/internal/vlog_config.h :e49x:p37r:t ewarning: xtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
);
         | 49                                             ^ | 
in/usr/local/clang/include/absl/base/nullability.ht: 241R:e22g:i snote: texpanded from macro 'absl_nonnull'e
rA  n241d | I#ndietfiianlei zaeb(sVlL_ongoSnintuel*l  a_bNsoln_nnuolnln
u      l| l                     ^ 
v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      In file included from | s2/s2winding_operation.cc                     ^:
19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   In file included from cs2/s2text_format.cco:n16s:
tIn file included from  ../src/s2/s2text_format.hc:h34a:
rIn file included from *../src/s2/mutable_s2shape_index.h :a36b:
sIn file included from l../src/s2/base/logging.h_:n22o:
nIn file included from n/usr/local/clang/include/absl/log/log.hu:l209l:
 In file included from N/usr/local/clang/include/absl/log/internal/log_impl.he:w20S:
tIn file included from r/usr/local/clang/include/absl/log/absl_vlog_is_on.hi:n63g:
(/usr/local/clang/include/absl/log/internal/vlog_config.h):;63
:      43| :              ^ 
warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]/usr/local/clang/include/absl/base/nullability.h
:241:22:    63 | note:  expanded from macro 'absl_nonnull' 
ex  p241l | i#cdietf icnoen satbesxlp_rn oVnLnouglSli t_eN(ocnonnusltl 
c      h| a                     ^r
* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   frIn file included from is2/s2winding_operation.cce:n19d:
 In file included from i../src/s2/s2winding_operation.hn:t23 :
lIn file included from o../src/s2/s2builder.hg:_35i:
nIn file included from t../src/s2/id_set_lexicon.he:r28n:
aIn file included from l../src/s2/base/logging.h:::21R:
eIn file included from g/usr/local/clang/include/absl/log/check.hi:s37t:
eIn file included from r/usr/local/clang/include/absl/log/internal/check_impl.hA:n21d:
I/usr/local/clang/include/absl/log/internal/check_op.hn:i226t:i59a:l iwarning: ztype nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]e
(VLog  S226i | tveo*i da bMsalk_enCohnencuklOlp Vva)l;u
e      S| t                                                           ^r
ing/usr/local/clang/include/absl/base/nullability.h(:s241t:d22::: onote: sexpanded from macro 'absl_nonnull't
re  a241m | &# doesf,i nceo nasbts lv_oniodn*n ualbls l__Nnounlnlualbll
e       | p                     ^)
;
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
380 warnings generated.
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.hIn file included from :s2/s2text_format.cc21::
16:
/usr/local/clang/include/absl/log/internal/check_op.hIn file included from :../src/s2/s2text_format.h323::3446:
:In file included from  ../src/s2/mutable_s2shape_index.h:warning: 36type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:

In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:  209323:
 | In file included from  /usr/local/clang/include/absl/log/internal/log_impl.h :f20r:
iIn file included from e/usr/local/clang/include/absl/log/absl_vlog_is_on.hn:d63 :
vo/usr/local/clang/include/absl/log/internal/vlog_config.hi:d133 :A37b:s lwarning: Ftype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]o
rmat  F133l | uisnht( SRtergiinsgtiefryASnidnIkn*i taibaslli_zneo(nVnLuolglS istien*k ,a
b      s| l                                             ^_
non/usr/local/clang/include/absl/base/nullability.hn:u241l:l22 :v )note: ;expanded from macro 'absl_nonnull'

      |                                       ^241
 | #d/usr/local/clang/include/absl/base/nullability.he:f241i:n22e:  anote: bexpanded from macro 'absl_nonnull's
l_  n241o | n#nduelfli n_eN oanbnsull_ln
o      n| n                     ^u
ll _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:36:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:35:
In file included from ../src/s2/id_set_lexicon.h:28:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
380 warnings generated.
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:66:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   66 |                               int_type* absl_nonnull out);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from In file included from /usr/local/clang/include/absl/container/internal/btree.hs2/s2text_format.cc::7016:
:
In file included from In file included from /usr/local/clang/include/absl/container/internal/layout.h../src/s2/s2text_format.h::19834:
:
In file included from In file included from /usr/local/clang/include/absl/strings/str_cat.h../src/s2/mutable_s2shape_index.h::11641:
:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h../src/s2/s2cell_id.h::2343:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s1angle.h::7728::
61In file included from :../src/s2/s2point.h :27warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2coder.h:23:
   /usr/local/clang/include/absl/status/status.h77: | 1031[:[42n:o dwarning: itype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
card] ]1031  | bionolli nSei mcpolnesAtt osft(aatbussl_:i:nstterrinnagl_:v:iSetwa tsutsrR,e pf*l oaabts*l _anbosnln_unloln nSutlalt uosu:t:)R;e
p      T| o                                                            ^P
oi/usr/local/clang/include/absl/base/nullability.hn:t241e:r22(:
       | note:                                          ^expanded from macro 'absl_nonnull'

  241/usr/local/clang/include/absl/base/nullability.h | :#241d:e22f:i nnote: eexpanded from macro 'absl_nonnull' 
ab  s241l | _#ndoenfniunlel  a_bNsoln_nnuolnln
u      l| l                     ^ 
_Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:88:62: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   88 | [[noIn file included from ds2/s2text_format.cci:s16c:
aIn file included from r../src/s2/s2text_format.hd:]34]:
 In file included from b../src/s2/mutable_s2shape_index.ho:o41l:
 In file included from S../src/s2/s2cell_id.hi:m43p:
lIn file included from e../src/s2/s1angle.hA:t28o:
dIn file included from (../src/s2/s2point.ha:b27s:
lIn file included from :../src/s2/s2coder.h::s23t:
r/usr/local/clang/include/absl/status/status.hi:n1038g:_33v:i ewarning: wtype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
str ,1038  | d o u b lset*a taubss_li_nntoenrnnualll: :oSutta)t;u
s      R| e                                                             ^p
* /usr/local/clang/include/absl/base/nullability.ha:b241s:l22_:n onote: nexpanded from macro 'absl_nonnull'n
ul  l241  | r#edpe)f i{n
e       | a                                ^b
sl_/usr/local/clang/include/absl/base/nullability.hn:o241n:n22u:l lnote:  expanded from macro 'absl_nonnull'_
No  n241n | u#ldle
f      i| n                     ^e
 absl_nonnull _Nonnull
In file included from       s2/s2winding_operation.cc| :                     ^19
:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:98:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   98 | [[nodiscard]] bool SimpleAtob(absl::string_view str, bool* absl_nonnull out);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.hs2/s2text_format.cc::2316:
:
In file included from /usr/local/clang/include/absl/strings/numbers.h../src/s2/s2text_format.h::11234::
44In file included from :../src/s2/mutable_s2shape_index.h :41warning: :
type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]In file included from 
../src/s2/s2cell_id.h:43:
In file included from   ../src/s2/s1angle.h112: | 28 :
 In file included from  ../src/s2/s2point.h : 27 :
 In file included from  ../src/s2/s2coder.h : 23 :
 /usr/local/clang/include/absl/status/status.h : 1063 : 13 :   warning:  type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension] 
     1063  |  c o n s t   cihnatr_*t yapbes*l _anbosnln_unloln nSutlalt uosuMte)s;s
a      g| e                                           ^A
sC/usr/local/clang/include/absl/base/nullability.hS:t241r:(22
:       | note:             ^expanded from macro 'absl_nonnull'

  /usr/local/clang/include/absl/base/nullability.h241: | 241#:d22e:f inote: nexpanded from macro 'absl_nonnull'e
 a  b241s | l#_dneofninnuel la b_sNlo_nnnounlnlu
l      l|                       ^_
Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:116:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  116 |                                         absl::int128* absl_nonnull out);
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:118:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 |                                         absl::uint128* absl_nonnull out);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:152:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  152 | void PutTwoDigits(uint32_t i, char* absl_nonnull buf);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:156:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  156 | bool safe_strto8_base(absl::string_view text, int8_t* absl_nonnull value,
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:158:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  158 | bool safe_strto16_base(absl::string_view text, int16_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:160:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | bool safe_strto32_base(absl::string_view text, int32_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:162:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  162 | bool safe_strto64_base(absl::string_view text, int64_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:165:39: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |                         absl::int128* absl_nonnull value, int base);
      |                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:166:57: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  166 | bool safe_strtou8_base(absl::string_view text, uint8_t* absl_nonnull value,
      |                                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:168:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | bool safe_strtou16_base(absl::string_view text, uint16_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:170:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  170 | bool safe_strtou32_base(absl::string_view text, uint32_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:172:59: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | bool safe_strtou64_base(absl::string_view text, uint64_t* absl_nonnull value,
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:175:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  175 |                          absl::uint128* absl_nonnull value, int base);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:182:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  182 | char* absl_nonnull RoundTripDoubleToBuffer(double d, char* absl_nonnull buffer);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:183:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  183 | char* absl_nonnull RoundTripFloatToBuffer(float f, char* absl_nonnull buffer);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:191:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  191 | size_t SixDigitsToBuffer(double d, char* absl_nonnull buffer);
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:198:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  198 | char* absl_nonnull FastIntToBuffer(int32_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:199:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  199 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:200:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | char* absl_nonnull FastIntToBuffer(uint32_t n, char* absl_nonnull out_str)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:201:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  201 |     ABSL_INTERNAL_NEED_MIN_SIZE(out_str, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:202:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 | char* absl_nonnull FastIntToBuffer(int64_t i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:203:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  203 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:204:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  204 | char* absl_nonnull FastIntToBuffer(uint64_t i, char* absl_nonnull buffer)
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:205:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  205 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBufferSize);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:206:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  206 | char* absl_nonnull FastIntToBuffer(int128 i, char* absl_nonnull buffer)
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:207:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  207 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:208:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  208 | char* absl_nonnull FastIntToBuffer(uint128 i, char* absl_nonnull buffer)
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:209:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  209 |     ABSL_INTERNAL_NEED_MIN_SIZE(buffer, kFastToBuffer128Size);
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:215:7: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  215 | char* absl_nonnull FastIntToBuffer(int_type i,
      |       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:216:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  216 |                                           char* absl_nonnull buffer)
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:217:5: warning: 'diagnose_if' is a clang extension [-Wgcc-compat]
  217 |     ABSL_INTERNAL_NEED_MIN_SIZE(
      |     ^
/usr/local/clang/include/absl/base/macros.h:251:18: note: expanded from macro 'ABSL_INTERNAL_NEED_MIN_SIZE'
  251 |   __attribute__((diagnose_if(__builtin_object_size(Obj, 0) < N, \
      |                  ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:247:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  247 |                                     int_type* absl_nonnull out, int base) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:303:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  303 | inline size_t FastHexToBufferZeroPad16(uint64_t val, char* absl_nonnull out) {
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:330:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  330 |                               int_type* absl_nonnull out) {
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:335:52: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  335 |                                      absl::int128* absl_nonnull out) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:340:53: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |                                      absl::uint128* absl_nonnull out) {
      |                                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:346:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  346 |                                  int_type* absl_nonnull out) {
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:351:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  351 |                                         absl::int128* absl_nonnull out) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
In file included from /usr/local/clang/include/absl/strings/str_cat.h:116:
In file included from /usr/local/clang/include/absl/strings/internal/stringify_sink.h:23:
/usr/local/clang/include/absl/strings/numbers.h:356:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  356 |                                         absl::uint128* absl_nonnull out) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:223:25: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  223 |   explicit Hex(Pointee* absl_nullable v, PadSpec spec = absl::kNoPad)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:398:24: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |   AlphaNum(const char* absl_nullable c_str  // NOLINT(runtime/explicit)
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:431:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  431 |   const char* absl_nullable data() const { return piece_.data(); }
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:501:32: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  501 | void AppendPieces(std::string* absl_nonnull dest,
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:635:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  635 | inline void StrAppend(std::string* absl_nonnull) {}
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:636:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  636 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a);
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:637:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  637 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:639:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  639 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:641:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  641 | void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:66:
In file included from /usr/local/clang/include/absl/container/internal/btree.h:70:
In file included from /usr/local/clang/include/absl/container/internal/layout.h:198:
/usr/local/clang/include/absl/strings/str_cat.h:646:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  646 | inline void StrAppend(std::string* absl_nonnull dest, const AlphaNum& a,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:34:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:75:61: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   75 |   ABSL_LOG_INTERNAL_CHECK(::absl::implicit_cast<const char* absl_nonnull>(     \
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:523:31: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  523 |                   false, false);
      |                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:522:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  522 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:525:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  525 |                   false, true);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:524:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  524 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  525 |                   false, true);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:527:30: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  527 |                   true, false);
      |                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  526 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  527 |                   true, false);
      |                   ~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:526:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:529:29: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  529 |                   true, true);
      |                             ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:528:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  528 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  529 |                   true, true);
      |                   ~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:532:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  532 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_C380A warningPsT generatedU.
RED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:531:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  531 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:534:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  534 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:533:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  533 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  534 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:536:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  536 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  535 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  536 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:535:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:538:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  538 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:537:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  537 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const &, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  538 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:541:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  541 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:540:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  540 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:543:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  543 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:542:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  542 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  543 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:545:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  545 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  544 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  545 |                   false);
      |                   ~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:544:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:547:23: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  547 |                   true);
      |                       ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:546:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  546 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  547 |                   true);
      |                   ~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:550:24: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  550 |                   false);
      |                        ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:549:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  549 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:551:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  551 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:79: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |                                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  552 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:552:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:78: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |                                                                              ^
/usr/local/clang/include/absl/container/internal/btree_container.h:496:9: note: macro 'ABSL_INTERNAL_X' defined here
  496 | #define ABSL_INTERNAL_X(Func, Callee, KQual, MQual, KValue, MValue, ...)     \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:553:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  553 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:555:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  555 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:558:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  558 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |                   const &, false, true,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  560 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  561 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  562 |                   const &, true, false,
      |                   ~~~~~~~~~~~~~~~~~~~~~
  563 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:561:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:564:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  564 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  565 |                   const &, true, true,
      |                   ~~~~~~~~~~~~~~~~~~~~
  566 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:568:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  568 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:570:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  570 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  571 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  572 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  573 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:572:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:574:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  574 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, const &, &&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  575 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:577:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  577 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:579:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  579 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  580 |                   false, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  581 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                   true, false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:581:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:583:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  583 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, const &,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  584 |                   true, true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:586:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  586 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:588:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  588 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  589 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  590 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  591 |                   false, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:590:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:509:52: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:509:47: note: expanded from macro 'ABSL_INTERNAL_X'
  509 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/btree_container.h:511:52: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:592:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  592 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_hint_impl, &&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  593 |                   true, const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:511:47: note: expanded from macro 'ABSL_INTERNAL_X'
  511 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)))                        \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:618:64: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |                                                                ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:618:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  618 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:63: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |                                                               ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:619:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  619 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, const &, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:620:59: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |                                                           ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:620:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  620 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, false);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |                                                          ^
/usr/local/clang/include/absl/container/internal/btree_container.h:596:9: note: macro 'ABSL_INTERNAL_X' defined here
  596 | #define ABSL_INTERNAL_X(Func, Callee, KQual, KValue, ...)                      \
      |         ^
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:621:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  621 |   ABSL_INTERNAL_X(try_emplace, try_emplace_impl, &&, true);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:622:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  622 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:624:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  624 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, const &, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  625 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:626:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  626 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/btree_container.h:611:52: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:30:
In file included from /usr/local/clang/include/absl/container/btree_map.h:67:
/usr/local/clang/include/absl/container/internal/btree_container.h:628:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  628 |   ABSL_INTERNAL_X(try_emplace, try_emplace_hint_impl, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  629 |                   const_iterator(hint) ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:611:47: note: expanded from macro 'ABSL_INTERNAL_X'
  611 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:638:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  638 |       const key_arg<K> &k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/btree_container.h:648:7: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  648 |       this)) ABSL_ATTRIBUTE_LIFETIME_BOUND {
      |       ^~~~
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:113:19: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  113 |       const char* absl_nonnull file_name = __builtin_FILE()) {
      |                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:133:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 |   constexpr const char* absl_nonnull file_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:142:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  142 |   constexpr const char* absl_nonnull function_name() const noexcept {
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:150:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |                            const char* absl_nonnull file_name)
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
In file included from /usr/local/clang/include/absl/log/internal/log_message.h:53:
/usr/local/clang/include/absl/types/source_location.h:165:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  165 |   const char* absl_nonnull file_name_ = "";
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:163:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  163 |   bool ParseFrom(absl::string_view value, std::string* absl_nonnull error);
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:40:
/usr/local/clang/include/absl/flags/commandlineflag.h:193:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 |   vIn file included from is2/util/math/mathutil.ccr:t17u:
aIn file included from l../src/s2/util/math/mathutil.h :v27o:
iIn file included from d../src/s2/base/logging.h :R21e:
aIn file included from d/usr/local/clang/include/absl/log/check.h(:v37o:
iIn file included from d/usr/local/clang/include/absl/log/internal/check_impl.h*: 21a:
bIn file included from s/usr/local/clang/include/absl/log/internal/check_op.hl:_41n:
oIn file included from n/usr/local/clang/include/absl/log/internal/strip.hn:u26l:
l /usr/local/clang/include/absl/log/internal/log_message.hd:s71t:)26 :c owarning: ntype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]s
t =    071; | 
        | L                          ^o
gM/usr/local/clang/include/absl/base/nullability.he:s241s:a22g:e (note: cexpanded from macro 'absl_nonnull'o
ns  t241  | c#hdaerf*i naeb salb_snlo_nnnounlnlu lfli l_eN,o ninnutl ll
i      n| e                     ^,

      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:78:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   78 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:80:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   80 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:82:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 |   LogMessage(const char* absl_nonnull file, int line,
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:119:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   LogMessage& ToSinkAlso(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:121:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  121 |   LogMessage& ToSinkOnly(absl::LogSink* absl_nonnull sink);
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:158:32: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |   LogMessage& operator<<(void* absl_nullable  v) {
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:161:38: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  161 |   LogMessage& operator<<(const void* absl_nullable  v) {
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:179:35: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  179 |   LogMessage& operator<<(wchar_t* absl_nullable v);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:190:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  190 |   LogMessage& operatIn file included from os2/s2winding_operation.ccr:<19<:
(In file included from s../src/s2/s2winding_operation.ht:d23::
:In file included from o../src/s2/s2builder.hs:t36r:
eIn file included from a../src/s2/mutable_s2shape_index.hm:&33 :
(In file included from *../src/s2/base/commandlineflags.ha:b21s:
lIn file included from _/usr/local/clang/include/absl/flags/flag.hn:o42n:
nIn file included from u/usr/local/clang/include/absl/flags/internal/flag.hl:l30 :
m)/usr/local/clang/include/absl/base/call_once.h(:s52t:d24::: owarning: stype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]t
ream   &52  | osst)d):;:
a      t| o                                         ^m
ic/usr/local/clang/include/absl/base/nullability.h<:u241i:n22t:3 2note: _expanded from macro 'absl_nonnull't
>*   241a | b#sdle_fnionnen ualbls lC_onnotnrnoullWlo r_dN(o
n      n| u                       ^l
l
      | /usr/local/clang/include/absl/base/nullability.h                     ^:
241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _NoIn file included from ns2/util/math/mathutil.ccn:u17l:
lIn file included from 
../src/s2/util/math/mathutil.h      :| 27                     ^:

In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21In file included from :
s2/s2winding_operation.ccIn file included from :/usr/local/clang/include/absl/log/internal/check_op.h19::
41In file included from :
../src/s2/s2winding_operation.hIn file included from :/usr/local/clang/include/absl/log/internal/strip.h23::
26In file included from :
../src/s2/s2builder.h:/usr/local/clang/include/absl/log/internal/log_message.h36::
191In file included from :../src/s2/mutable_s2shape_index.h43::33 :
In file included from warning: ../src/s2/base/commandlineflags.htype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]:
21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42  :
191In file included from  | /usr/local/clang/include/absl/flags/internal/flag.h : 30L:
o/usr/local/clang/include/absl/base/call_once.hg:M53e:s22s:a gwarning: etype nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]&
 op   e53r | a t o r <a<b(sslt:d::o:nicoes__fblaasge*&  a(b*salb_snlo_nnnounlnlu lfll amg))(;s
t      d| :                     ^:
io/usr/local/clang/include/absl/base/nullability.hs:_241b:a22s:e &note:  expanded from macro 'absl_nonnull'o
s)  )241; | 
#      d| e                                          ^f
in/usr/local/clang/include/absl/base/nullability.he: 241a:b22s:l _note: nexpanded from macro 'absl_nonnull'o
nn  u241l | l# d_eNfoinnneu lalb
s      l| _                     ^n
onnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:96:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend std::atomic<uint32_t>* absl_nonnull base_internal::ControlWord(
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:97:18: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   97 |       once_flag* absl_nonnull flag);
      |                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:306:3: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  306 |   absl_nonnull std::uniqueIn file included from _s2/s2winding_operation.ccp:t19r:
<In file included from L../src/s2/s2winding_operation.ho:g23M:
eIn file included from s../src/s2/s2builder.hs:a36g:
eIn file included from D../src/s2/mutable_s2shape_index.ha:t33a:
>In file included from  ../src/s2/base/commandlineflags.hd:a21t:
aIn file included from _/usr/local/clang/include/absl/flags/flag.h;:
42      :
| In file included from   ^/usr/local/clang/include/absl/flags/internal/flag.h
:30:
/usr/local/clang/include/absl/base/nullability.h/usr/local/clang/include/absl/base/call_once.h::241111::2240::  note: warning: expanded from macro 'absl_nonnull'type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]

  241 |   #111d | evfoiinde  LaobwsLle_vneolnCnaullllO n_cNeo(nanbuslll:
:      o| n                     ^c
e_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:153:41: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  153 |     CallOnceImpl(std::atomic<uint32_t>* absl_nonnull control,
      |                                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:194:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  194 | inline std::atomic<uint32_t>* absl_nonnull ControlWord(
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:195:16: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  195 |     once_flag* absl_nonnull flag) {
      |                ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
In file included from /usr/local/clang/include/absl/flags/flag.h:42:
In file included from /usr/local/clang/include/absl/flags/internal/flag.h:30:
/usr/local/clang/include/absl/base/call_once.h:200:40: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  200 | void LowLevelCallOnce(absl::once_flag* absl_nonnull flag, Callable&& fn,
      |                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:319:20: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  319 |     const wchar_t* absl_nullable const& v);
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:321:52: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  321 | inline LogMessage& LogMessage::operator<<(wchar_t* absl_nullable v) {
      |                                                    ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:340:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  340 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:398:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  398 |     void* absl_nullable const& v);
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:400:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  400 |     const void* absl_nullable const& v);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:425:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  425 |   LogMessageFatal(const char* absl_nonnull file, int line) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:426:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  426 |   LogMessageFatal(const char* absl_nonnull file, int line,
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:427:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  427 |                   const char* absl_nonnull failure_msg) ABSL_ATTRIBUTE_COLD;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:436:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  436 |   LogMessageDebugFatal(const char* absl_nonnull file,
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:446:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  446 |   LogMessageQuietlyDebugFatal(const char* absl_nonnull file,
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:454:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 |   LogMessageQuietlyFatal(const char* absl_nonnull file,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:456:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 |   LogMessageQuietlyFatal(const char* absl_nonnull file, int line,
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
In file included from /usr/local/clang/include/absl/log/internal/check_op.h:41:
In file included from /usr/local/clang/include/absl/log/internal/strip.h:26:
/usr/local/clang/include/absl/log/internal/log_message.h:457:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 |                          const char* absl_nonnull failure_msg)
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:180:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | ABSL_ATTRIBUTE_PURE_FUNCTION const char* absl_nonnull MakeCheckFailString(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:181:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  181 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:189:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  189 | inline const absl::Status* absl_nonnull AsStatus(const absl::Status& s) {
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:193:21: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  193 | const absl::Status* absl_nonnull AsStatus(const absl::StatusOr<T>& s) {
      |                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:202:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  202 |   explicit CheckOpMessageBuilder(const char* absl_nonnull exprtext);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:209:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  209 |   const char* absl_nonnull NewString();
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:226:59: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  226 | void MakeCheckOpValueString(std::ostream& os, const void* absl_nullable p);
      |                                                           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:276:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 | const void* absl_nullable operator<<(std::ostream&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:277:50: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  277 |                                      const void* absl_nullable value);
      |                                                  ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:278:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  278 | const void* absl_nullable operator<<(std::ostream&, std::nullptr_t);
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:292:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  292 | const char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:293:49: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  293 |                                     const char* absl_nonnull);
      |                                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:295:20: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  295 | const signed char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:296:63: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  296 |                                            const signed char* absl_nonnull);
      |                                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:298:22: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  298 | const unsigned char* absl_nonnull operator<<(std::basic_ostream<char, Traits>&,
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:299:67: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  299 |                                              const unsigned char* absl_nonnull);
      |                                                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:323:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  323 |   friend void AbslFormatFlush(StringifySink* absl_nonnull sink,
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:110:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  110 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const T& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:33:
In file included from ../src/s2/base/commandlineflags.h:21:
/usr/local/clang/include/absl/flags/flag.h:118:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  118 | void SetFlag(absl::Flag<T>* absl_nonnull flag, const V& v) {
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:428:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  428 | ABSL_ATTRIBUTE_RETURNS_NONNULL const char* absl_nonnull MakeCheckOpString(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:429:31: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  429 |     T1 v1, T2 v2, const char* absl_nonnull exprtext) ABSL_ATTRIBUTE_NOINLINE;
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:432:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  432 | const char* absl_nonnull MakeCheckOpString(T1 v1, T2 v2,
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:433:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  433 |                                            const char* absl_nonnull exprtext) {
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  451 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:451:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  452 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:452:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  453 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:453:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  454 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:454:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  455 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:455:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  456 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:456:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  457 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:457:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  458 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:458:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  459 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:459:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:460:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  460 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  462 |     const signed char* absl_nonnull);
      |                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:462:24: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:461:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  461 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  464 |     const unsigned char* absl_nonnull);
      |                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:464:26: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:463:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  463 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:449:31: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  449 |   extern template const char* absl_nonnull MakeCheckOpString(   \
      |                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      |                                                                  ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:66: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:465:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  465 | ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void* absl_nonnull);
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:450:25: note: expanded from macro 'ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN'
  450 |       x, x, const char* absl_nonnull)
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  502 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:502:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  503 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:503:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  504 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:504:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  505 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:505:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  506 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:506:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  507 | ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
      | ^
/usr/local/clang/include/absl/log/internal/check_op.h:488:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  488 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:489:47: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  489 |       const T1& v1, const T2& v2, const char* absl_nonnull exprtext) {     \
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:497:32: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  497 |   inline constexpr const char* absl_nullable name##Impl(                   \
      |                                ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:507:1: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
/usr/local/clang/include/absl/log/internal/check_op.h:498:35: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP_IMPL'
  498 |       int v1, int v2, const char* absl_nonnull exprtext) {                 \
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:511:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  511 | const char* absl_nullable CheckstrcmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:512:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  512 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:513:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  513 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:514:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  514 | const char* absl_nullable CheckstrcmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:515:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  515 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:516:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  516 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:517:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  517 | const char* absl_nullable CheckstrcasecmptrueImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:518:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  518 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:519:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  519 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:520:13: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  520 | const char* absl_nullable CheckstrcasecmpfalseImpl(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:17: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:521:47: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  521 |     const char* absl_nullable s1, const char* absl_nullable s2,
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:21:
In file included from /usr/local/clang/include/absl/log/check.h:37:
In file included from /usr/local/clang/include/absl/log/internal/check_impl.h:21:
/usr/local/clang/include/absl/log/internal/check_op.h:522:17: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  522 |     const char* absl_nonnull exprtext);
      |                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:119:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   StatusRep* absl_nonnull Clone(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:125:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  125 |   StatusRep* absl_nonnull CloneAndUnref(
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:128:14: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  128 |   StatusRep* absl_nonnull CloneAndUnref() const;
      |              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:149:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  149 | const char* absl_nonnull MakeCheckFailString(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:25: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                         ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
In file included from /usr/local/clang/include/absl/status/status.h:67:
/usr/local/clang/include/absl/status/internal/status_internal.h:150:58: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  150 |     const absl::Status* absl_nonnull status, const char* absl_nonnull prefix);
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:725:38: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  725 |   static status_internal::StatusRep* absl_nonnull PrepareToModify(
      |                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:732:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  732 |   static const std::string* absl_nonnull EmptyString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:733:29: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  733 |   static const std::string* absl_nonnull MovedFromString();
      |                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:751:61: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  751 |   static uintptr_t PointerToRep(status_internal::StatusRep* absl_nonnull r);
      |                                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:752:44: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  752 |   static const status_internal::StatusRep* absl_nonnull RepToPointer(
      |                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1031:42: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1031 | inline const status_internal::StatusRep* absl_nonnull Status::RepToPointer(
      |                                          ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1038:33: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1038 |     status_internal::StatusRep* absl_nonnull rep) {
      |                                 ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:41:
In file included from ../src/s2/s2cell_id.h:43:
In file included from ../src/s2/s1angle.h:28:
In file included from ../src/s2/s2point.h:27:
In file included from ../src/s2/s2coder.h:23:
/usr/local/clang/include/absl/status/status.h:1063:13: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
 1063 | const char* absl_nonnull StatusMessageAsCStr(
      |             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:49:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   49 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:63:43: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   63 |   explicit constexpr VLogSite(const char* absl_nonnull f)
      |                                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:96:60: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   96 |   friend int log_internal::RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:119:15: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  119 |   const char* absl_nonnull const file_;
      |               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:133:37: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  133 | int RegisterAndInitialize(VLogSite* absl_nonnull v);
      |                                     ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:157:11: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  157 | VLogSite* absl_nullable SetVModuleListHeadForTestOnly(
      |           ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:27:
In file included from ../src/s2/base/logging.h:22:
In file included from /usr/local/clang/include/absl/log/log.h:209:
In file included from /usr/local/clang/include/absl/log/internal/log_impl.h:20:
In file included from /usr/local/clang/include/absl/log/absl_vlog_is_on.h:63:
/usr/local/clang/include/absl/log/internal/vlog_config.h:158:15: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  158 |     VLogSite* absl_nullable v);
      |               ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:39:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   39 | inline uint16_t UnalignedLoad16(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:45:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   45 | inline uint32_t UnalignedLoad32(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:51:45: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   51 | inline uint64_t UnalignedLoad64(const void* absl_nonnull p) {
      |                                             ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:57:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   57 | inline void UnalignedStore16(void* absl_nonnull p, uint16_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:61:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   61 | inline void UnalignedStore32(void* absl_nonnull p, uint32_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
In file included from /usr/local/clang/include/absl/base/internal/endian.h:26:
/usr/local/clang/include/absl/base/internal/unaligned_access.h:65:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline void UnalignedStore64(void* absl_nonnull p, uint64_t v) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:160:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  160 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:164:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  164 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:168:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  168 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:172:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  172 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:176:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  176 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:180:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  180 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
572 warnings generated.
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:250:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline uint16_t Load16(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:254:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  254 | inline void Store16(void* absl_nonnull p, uint16_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:258:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  258 | inline uint32_t Load32(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:262:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  262 | inline void Store32(void* absl_nonnull p, uint32_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:266:36: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  266 | inline uint64_t Load64(const void* absl_nonnull p) {
      |                                    ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/util/math/mathutil.cc:17:
In file included from ../src/s2/util/math/mathutil.h:28:
In file included from ../src/s2/util/bits/bits.h:21:
In file included from /usr/local/clang/include/absl/numeric/bits.h:52:
/usr/local/clang/include/absl/base/internal/endian.h:270:27: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  270 | inline void Store64(void* absl_nonnull p, uint64_t v) {
      |                           ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
In file included from /usr/local/clang/include/absl/container/internal/raw_hash_map.h:27:
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2663:53: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2663 |       T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                     ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2692:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2692 |       const T& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_set.h:2734:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
 2734 |                   T&& value ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
  276 |     S2_CHECK_NE(det, VType(0)) << " Can't inverse. Determinant = 0.";
      |     ^
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   ABSL_LOG_INTERNAL_CHECK_OP(Check_NE, !=, val1, val1_text, val2, val2_text)
      |   ^
/usr/local/clang/include/absl/log/internal/check_op.h:68:22: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'
   68 |   while (const char* absl_nullable absl_log_internal_check_op_result           \
      |                      ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2winding_operation.cc:19:
In file included from ../src/s2/s2winding_operation.h:23:
In file included from ../src/s2/s2builder.h:36:
In file included from ../src/s2/mutable_s2shape_index.h:44:
In file included from ../src/s2/s2pointutil.h:27:
../src/s2/util/math/matrix3x3.h:276:5: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
../src/s2/base/logging.h:37:21: note: expanded from macro 'S2_CHECK_NE'
   37 | #define S2_CHECK_NE CHECK_NE
      |                     ^
/usr/local/clang/include/absl/log/check.h:120:3: note: expanded from macro 'CHECK_NE'
  120 |   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
      |   ^
/usr/local/clang/include/absl/log/internal/check_impl.h:51:3: note: expanded from macro 'ABSL_LOG_INTERNAL_CHECK_NE_IMPL'
   51 |   AIn file included from Bs2/s2text_format.ccS:L16_:
LIn file included from O../src/s2/s2text_format.hG:_40I:
NIn file included from T../src/s2/s2lax_polygon_shape.hE:R36N:
AIn file included from L../src/s2/s2polygon.h_:C29H:
EIn file included from C/usr/local/clang/include/absl/container/flat_hash_map.hK:_45O:
P(/usr/local/clang/include/absl/container/internal/raw_hash_map.hC:h143e:c59k:_ Nwarning: Epassing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted],
 !=,   v143a | l 1 ,   v a l 1 _ t e x t ,   v a l 2f,a lvsael,2 _ftaelxste),
       A| B  ^S
L_/usr/local/clang/include/absl/log/internal/check_op.hI:N75T:E61R:N Anote: Lexpanded from macro 'ABSL_LOG_INTERNAL_CHECK_OP'_
SIN   G75L | E _ AARBGS(L)_)L;O
G      _| I                                                          ^N
TER/usr/local/clang/include/absl/container/internal/raw_hash_map.hN:A120L:_9C:H Enote: Cmacro 'ABSL_INTERNAL_X' defined hereK
(::  a120b | s#ld:e:fiimnpel iAcBiStL__cIaNsTtE<RcNoAnLs_tX (cFhuanrc*,  aCbaslll_eneo,n nKuQlula>l(,   V Q u a\l
,       | K                                                            ^V
alu/usr/local/clang/include/absl/base/nullability.he:, V241V:a22l:u enote: ,expanded from macro 'absl_nonnull' 
Ta  i241l | ,# d.e.f.i)n e\ 
a      b| s        ^l
_nonnull _Nonnull
      |                      ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:142:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  142 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:145:58: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                          ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:144:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  144 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  145 |                   false, true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:147:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  146 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  147 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:146:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:149:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:148:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  148 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  149 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:152:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  152 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:151:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  151 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:154:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:153:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  153 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  154 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:156:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  155 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  156 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:155:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:158:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:157:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  157 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:161:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  161 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:160:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  160 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:163:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:162:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  162 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:165:52: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                                                    ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  164 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  165 |                   false, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:164:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:167:51: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                                                   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:166:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  166 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |                   true, ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:170:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  170 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:169:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  169 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:172:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:171:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  171 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  172 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:174:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  173 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:173:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:176:45: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                                             ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:120:9: note: macro 'ABSL_INTERNAL_X' defined here
  120 | #define ABSL_INTERNAL_X(Func, Callee, KQual, VQual, KValue, VValue, Tail, ...) \
      |         ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:175:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  175 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |                   ABSL_INTERNAL_SINGLE_ARG());
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:178:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  178 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:180:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  180 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |                   false, true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  182 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |       160  warning s  generated .
        false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:182:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:184:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  184 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:187:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  187 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:189:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  189 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  191 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:191:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:193:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  193 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, const&, &&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:196:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  196 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&,693  warningcso generatedn.
st&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:198:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  198 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  200 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |                   false, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:200:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:202:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  202 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, const&, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 |                   true, .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:205:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  205 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:207:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  207 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, false, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  208 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  209 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, false,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  210 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:209:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:32:9: note: macro 'ABSL_INTERNAL_IF_false' defined here
   32 | #define ABSL_INTERNAL_IF_false(if_satisfied, ...) __VA_ARGS__
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:52: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                                    ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:133:47: note: expanded from macro 'ABSL_INTERNAL_X'
  133 |           ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this)),                          \
      |                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: passing no argument for the '...' parameter of a variadic macro is a C++20 extension [-Wvariadic-macro-arguments-omitted]
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:16: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |                ^
/usr/local/clang/include/absl/container/internal/common.h:31:9: note: macro 'ABSL_INTERNAL_IF_true' defined here
   31 | #define ABSL_INTERNAL_IF_true(if_satisfied, ...) if_satisfied
      |         ^
In file included from s2/s2text_format.cc:16:
In file included from ../src/s2/s2text_format.h:40:
In file included from ../src/s2/s2lax_polygon_shape.h:36:
In file included from ../src/s2/s2polygon.h:29:
In file included from /usr/local/clang/include/absl/container/flat_hash_map.h:45:
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:211:3: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  211 |   ABSL_INTERNAL_X(insert_or_assign, insert_or_assign_impl, &&, &&, true, true,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |                   .first, const_iterator ABSL_INTERNAL_COMMA);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:135:11: note: expanded from macro 'ABSL_INTERNAL_X'
  135 |           this))) ABSL_ATTRIBUTE_LIFETIME_BOUND {                              \
      |           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:233:58: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  233 |       key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                          ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:252:63: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  252 |       const key_arg<K>& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                               ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:267:75: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  267 |                        key_arg<K>&& k ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                           ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:283:64: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  283 |                            ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this),
      |                                                                ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:321:60: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  321 |       key_arg<K>&& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                            ^~~~
/usr/local/clang/include/absl/container/internal/raw_hash_map.h:338:65: warning: 'lifetime_capture_by(this)' is deprecated; use 'lifetime_capture_by_this' instead [-Wdeprecated-attributes]
  338 |       const key_arg<K>& key ABSL_INTERNAL_ATTRIBUTE_CAPTURED_BY(this))
      |                                                                 ^~~~
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:79:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   79 | void AsciiStrToLower(char* absl_nonnull dst, const char* absl_nullable src,
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:79:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   79 | void AsciiStrToLower(char* absl_nonnull dst, const char* absl_nullable src,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:82:28: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   82 | void AsciiStrToUpper(char* absl_nonnull dst, const char* absl_nullable src,
      |                            ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:82:58: warning: type nullability specifier '_Nullable' is a Clang extension [-Wnullability-extension]
   82 | void AsciiStrToUpper(char* absl_nonnull dst, const char* absl_nullable src,
      |                                                          ^
/usr/local/clang/include/absl/base/nullability.h:257:23: note: expanded from macro 'absl_nullable'
  257 | #define absl_nullable _Nullable
      |                       ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:188:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  188 | void AsciiStrToLower(std::string* absl_nonnull s);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:219:35: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  219 | void AsciiStrToUpper(std::string* absl_nonnull s);
      |                                   ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:250:54: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  250 | inline void StripLeadingAsciiWhitespace(std::string* absl_nonnull str) {
      |                                                      ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:264:55: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  264 | inline void StripTrailingAsciiWhitespace(std::string* absl_nonnull str) {
      |                                                       ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:277:47: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  277 | inline void StripAsciiWhitespace(std::string* absl_nonnull str) {
      |                                               ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:23:
/usr/local/clang/include/absl/strings/ascii.h:283:46: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
  283 | void RemoveExtraAsciiWhitespace(std::string* absl_nonnull str);
      |                                              ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:27:
In file included from /usr/local/clang/include/absl/strings/str_split.h:50:
/usr/local/clang/include/absl/strings/strip.h:48:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   48 | inline constexpr bool ConsumePrefix(absl::string_view* absl_nonnull str,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
In file included from s2/s2text_format.cc:27:
In file included from /usr/local/clang/include/absl/strings/str_split.h:50:
/usr/local/clang/include/absl/strings/strip.h:65:56: warning: type nullability specifier '_Nonnull' is a Clang extension [-Wnullability-extension]
   65 | inline constexpr bool ConsumeSuffix(absl::string_view* absl_nonnull str,
      |                                                        ^
/usr/local/clang/include/absl/base/nullability.h:241:22: note: expanded from macro 'absl_nonnull'
  241 | #define absl_nonnull _Nonnull
      |                      ^
575 warnings generated.
705 warnings generated.
ar rcs s2/libs2static.a s2/encoded_s2cell_id_vector.o s2/encoded_s2point_vector.o s2/encoded_s2shape_index.o s2/encoded_string_vector.o s2/id_set_lexicon.o s2/mutable_s2shape_index.o s2/r2rect.o s2/s1angle.o s2/s1chord_angle.o s2/s1interval.o s2/s2boolean_operation.o s2/s2buffer_operation.o s2/s2builder_graph.o s2/s2builder.o s2/s2builderutil_closed_set_normalizer.o s2/s2builderutil_find_polygon_degeneracies.o s2/s2builderutil_get_snapped_winding_delta.o s2/s2builderutil_lax_polygon_layer.o s2/s2builderutil_lax_polyline_layer.o s2/s2builderutil_s2point_vector_layer.o s2/s2builderutil_s2polygon_layer.o s2/s2builderutil_s2polyline_layer.o s2/s2builderutil_s2polyline_vector_layer.o s2/s2builderutil_snap_functions.o s2/s2cap.o s2/s2cell_id.o s2/s2cell_index.o s2/s2cell_union.o s2/s2cell.o s2/s2centroids.o s2/s2closest_cell_query.o s2/s2closest_edge_query.o s2/s2closest_point_query.o s2/s2contains_vertex_query.o s2/s2convex_hull_query.o s2/s2coords.o s2/s2crossing_edge_query.o s2/s2debug.o s2/s2earth.o s2/s2edge_clipping.o s2/s2edge_crosser.o s2/s2edge_crossings.o s2/s2edge_distances.o s2/s2edge_tessellator.o s2/s2error.o s2/s2furthest_edge_query.o s2/s2hausdorff_distance_query.o s2/s2latlng_rect_bounder.o s2/s2latlng_rect.o s2/s2latlng.o s2/s2lax_loop_shape.o s2/s2lax_polygon_shape.o s2/s2lax_polyline_shape.o s2/s2loop_measures.o s2/s2loop.o s2/s2max_distance_targets.o s2/s2measures.o s2/s2memory_tracker.o s2/s2metrics.o s2/s2min_distance_targets.o s2/s2padded_cell.o s2/s2point_compression.o s2/s2point_region.o s2/s2pointutil.o s2/s2polygon.o s2/s2polyline_alignment.o s2/s2polyline_measures.o s2/s2polyline_simplifier.o s2/s2polyline.o s2/s2predicates.o s2/s2projections.o s2/s2r2rect.o s2/s2region_coverer.o s2/s2region_intersection.o s2/s2region_term_indexer.o s2/s2region_union.o s2/s2region.o s2/s2shape_index_buffered_region.o s2/s2shape_index_measures.o s2/s2shape_index.o s2/s2shape_measures.o s2/s2shape_nesting_query.o s2/s2shapeutil_build_polygon_boundaries.o s2/s2shapeutil_coding.o s2/s2shapeutil_contains_brute_force.o s2/s2shapeutil_conversion.o s2/s2shapeutil_edge_iterator.o s2/s2shapeutil_get_reference_point.o s2/s2shapeutil_visit_crossing_edge_pairs.o s2/s2text_format.o s2/s2wedge_relations.o s2/s2winding_operation.o s2/util/bits/bit-interleave.o s2/util/coding/coder.o s2/util/coding/varint.o s2/util/math/exactfloat/exactfloat.o s2/util/math/mathutil.o s2/util/units/length-units.o
/usr/local/clang23/bin/clang++ -std=gnu++17 -shared -L/usr/local/clang/lib64 -L/usr/local/clang23/lib -L/usr/local/clang23/lib/x86_64-unknown-linux-gnu -L/usr/local/lib64 -o s2.so cpp-compat.o s2-altrep.o s2-accessors.o s2-bounds.o s2-cell.o s2-cell-union.o s2-constructors-formatters.o s2-predicates.o s2-transformers.o init.o util.o RcppExports.o s2-geography.o s2-lnglat.o s2-matrix.o wk-impl.o s2geography/accessors-geog.o s2geography/accessors.o s2geography/build.o s2geography/coverings.o s2geography/distance.o s2geography/geography.o s2geography/linear-referencing.o s2geography/predicates.o -Ls2 -ls2static -L/usr/local/clang/lib64 -labsl_flags_internal -labsl_flags_marshalling -labsl_flags_reflection -labsl_flags_private_handle_accessor -labsl_flags_commandlineflag -labsl_flags_commandlineflag_internal -labsl_flags_config -labsl_flags_program_name -labsl_raw_hash_set -labsl_hashtablez_sampler -labsl_log_internal_check_op -labsl_log_internal_conditions -labsl_log_internal_message -labsl_examine_stack -labsl_log_internal_format -labsl_log_internal_nullguard -labsl_log_internal_structured_proto -labsl_log_internal_log_sink_set -labsl_log_internal_globals -labsl_log_globals -labsl_vlog_config_internal -labsl_log_internal_fnmatch -labsl_log_sink -labsl_log_entry -labsl_log_internal_proto -labsl_status -labsl_cord -labsl_cordz_info -labsl_cord_internal -labsl_hash -labsl_city -labsl_cordz_functions -labsl_exponential_biased -labsl_cordz_handle -labsl_synchronization -labsl_graphcycles_internal -labsl_kernel_timeout_internal -labsl_tracing_internal -labsl_time -labsl_civil_time -labsl_time_zone -labsl_crc_cord_state -labsl_crc32c -labsl_crc_internal -labsl_crc_cpu_detect -labsl_leak_check -labsl_stacktrace -labsl_str_format_internal -labsl_strerror -labsl_symbolize -labsl_debugging_internal -labsl_demangle_internal -labsl_demangle_rust -labsl_decode_rust_punycode -labsl_utf8_for_code_point -labsl_malloc_internal -labsl_strings -labsl_strings_internal -labsl_int128 -labsl_base -lrt -labsl_spinlock_wait -labsl_source_location -labsl_throw_delegate -labsl_raw_logging_internal -labsl_log_severity -lssl -lcrypto
make[2]: Leaving directory '/data/localhost/ripley/R/packages/tests-clang-trunk/s2/src'
make[2]: Entering directory '/data/localhost/ripley/R/packages/tests-clang-trunk/s2/src'
make[2]: Leaving directory '/data/localhost/ripley/R/packages/tests-clang-trunk/s2/src'
installing to /data/localhost/ripley/R/packages/tests-clang-trunk/s2.Rcheck/00LOCK-s2/00new/s2/libs
** R
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
*** copying figures
** building package indices
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (s2)